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b827b231 | 1 | /* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Nicira, Inc. |
9583bc14 EJ |
2 | * |
3 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | * you may not use this file except in compliance with the License. | |
5 | * You may obtain a copy of the License at: | |
6 | * | |
7 | * http://www.apache.org/licenses/LICENSE-2.0 | |
8 | * | |
9 | * Unless required by applicable law or agreed to in writing, software | |
10 | * distributed under the License is distributed on an "AS IS" BASIS, | |
11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | * See the License for the specific language governing permissions and | |
13 | * limitations under the License. */ | |
14 | ||
15 | #include <config.h> | |
16 | ||
17 | #include "ofproto/ofproto-dpif-xlate.h" | |
18 | ||
8449c4d6 | 19 | #include <errno.h> |
b2befd5b BP |
20 | #include <sys/types.h> |
21 | #include <netinet/in.h> | |
a36de779 PS |
22 | #include <arpa/inet.h> |
23 | #include <net/if.h> | |
24 | #include <sys/socket.h> | |
8449c4d6 | 25 | |
db7d4e46 | 26 | #include "bfd.h" |
9583bc14 EJ |
27 | #include "bitmap.h" |
28 | #include "bond.h" | |
29 | #include "bundle.h" | |
30 | #include "byte-order.h" | |
db7d4e46 | 31 | #include "cfm.h" |
9583bc14 EJ |
32 | #include "connmgr.h" |
33 | #include "coverage.h" | |
46445c63 | 34 | #include "csum.h" |
e14deea0 | 35 | #include "dp-packet.h" |
9583bc14 | 36 | #include "dpif.h" |
f7f1ea29 | 37 | #include "in-band.h" |
db7d4e46 | 38 | #include "lacp.h" |
9583bc14 EJ |
39 | #include "learn.h" |
40 | #include "mac-learning.h" | |
6d95c4e8 | 41 | #include "mcast-snooping.h" |
9583bc14 EJ |
42 | #include "multipath.h" |
43 | #include "netdev-vport.h" | |
44 | #include "netlink.h" | |
45 | #include "nx-match.h" | |
46 | #include "odp-execute.h" | |
9583bc14 | 47 | #include "ofproto/ofproto-dpif-ipfix.h" |
ec7ceaed | 48 | #include "ofproto/ofproto-dpif-mirror.h" |
60d02c72 | 49 | #include "ofproto/ofproto-dpif-monitor.h" |
9583bc14 | 50 | #include "ofproto/ofproto-dpif-sflow.h" |
2d9b49dd | 51 | #include "ofproto/ofproto-dpif-trace.h" |
901a517e | 52 | #include "ofproto/ofproto-dpif-xlate-cache.h" |
9583bc14 | 53 | #include "ofproto/ofproto-dpif.h" |
6f00e29b | 54 | #include "ofproto/ofproto-provider.h" |
b598f214 BW |
55 | #include "openvswitch/dynamic-string.h" |
56 | #include "openvswitch/meta-flow.h" | |
57 | #include "openvswitch/list.h" | |
58 | #include "openvswitch/ofp-actions.h" | |
1fc11c59 | 59 | #include "openvswitch/ofp-ed-props.h" |
b598f214 BW |
60 | #include "openvswitch/vlog.h" |
61 | #include "ovs-lldp.h" | |
a36de779 | 62 | #include "ovs-router.h" |
b598f214 BW |
63 | #include "packets.h" |
64 | #include "tnl-neigh-cache.h" | |
a36de779 | 65 | #include "tnl-ports.h" |
9583bc14 | 66 | #include "tunnel.h" |
ee89ea7b | 67 | #include "util.h" |
ab108418 | 68 | #include "uuid.h" |
9583bc14 | 69 | |
46c88433 | 70 | COVERAGE_DEFINE(xlate_actions); |
0f032e95 | 71 | COVERAGE_DEFINE(xlate_actions_oversize); |
7d031d7e | 72 | COVERAGE_DEFINE(xlate_actions_too_many_output); |
9583bc14 EJ |
73 | |
74 | VLOG_DEFINE_THIS_MODULE(ofproto_dpif_xlate); | |
75 | ||
8a553e9a | 76 | /* Maximum depth of flow table recursion (due to resubmit actions) in a |
790c5d26 BP |
77 | * flow translation. |
78 | * | |
79 | * The goal of limiting the depth of resubmits is to ensure that flow | |
80 | * translation eventually terminates. Only resubmits to the same table or an | |
81 | * earlier table count against the maximum depth. This is because resubmits to | |
82 | * strictly monotonically increasing table IDs will eventually terminate, since | |
83 | * any OpenFlow switch has a finite number of tables. OpenFlow tables are most | |
84 | * commonly traversed in numerically increasing order, so this limit has little | |
85 | * effect on conventionally designed OpenFlow pipelines. | |
86 | * | |
87 | * Outputs to patch ports and to groups also count against the depth limit. */ | |
88 | #define MAX_DEPTH 64 | |
8a553e9a | 89 | |
98b07853 BP |
90 | /* Maximum number of resubmit actions in a flow translation, whether they are |
91 | * recursive or not. */ | |
790c5d26 | 92 | #define MAX_RESUBMITS (MAX_DEPTH * MAX_DEPTH) |
98b07853 | 93 | |
46c88433 EJ |
94 | struct xbridge { |
95 | struct hmap_node hmap_node; /* Node in global 'xbridges' map. */ | |
96 | struct ofproto_dpif *ofproto; /* Key in global 'xbridges' map. */ | |
97 | ||
ca6ba700 | 98 | struct ovs_list xbundles; /* Owned xbundles. */ |
46c88433 EJ |
99 | struct hmap xports; /* Indexed by ofp_port. */ |
100 | ||
101 | char *name; /* Name used in log messages. */ | |
89a8a7f0 | 102 | struct dpif *dpif; /* Datapath interface. */ |
46c88433 | 103 | struct mac_learning *ml; /* Mac learning handle. */ |
6d95c4e8 | 104 | struct mcast_snooping *ms; /* Multicast Snooping handle. */ |
46c88433 EJ |
105 | struct mbridge *mbridge; /* Mirroring. */ |
106 | struct dpif_sflow *sflow; /* SFlow handle, or null. */ | |
107 | struct dpif_ipfix *ipfix; /* Ipfix handle, or null. */ | |
ce3955be | 108 | struct netflow *netflow; /* Netflow handle, or null. */ |
9d189a50 | 109 | struct stp *stp; /* STP or null if disabled. */ |
9efd308e | 110 | struct rstp *rstp; /* RSTP or null if disabled. */ |
46c88433 | 111 | |
46c88433 EJ |
112 | bool has_in_band; /* Bridge has in band control? */ |
113 | bool forward_bpdu; /* Bridge forwards STP BPDUs? */ | |
4b97b70d | 114 | |
b440dd8c JS |
115 | /* Datapath feature support. */ |
116 | struct dpif_backer_support support; | |
46c88433 EJ |
117 | }; |
118 | ||
119 | struct xbundle { | |
120 | struct hmap_node hmap_node; /* In global 'xbundles' map. */ | |
121 | struct ofbundle *ofbundle; /* Key in global 'xbundles' map. */ | |
122 | ||
ca6ba700 | 123 | struct ovs_list list_node; /* In parent 'xbridges' list. */ |
46c88433 EJ |
124 | struct xbridge *xbridge; /* Parent xbridge. */ |
125 | ||
ca6ba700 | 126 | struct ovs_list xports; /* Contains "struct xport"s. */ |
46c88433 EJ |
127 | |
128 | char *name; /* Name used in log messages. */ | |
129 | struct bond *bond; /* Nonnull iff more than one port. */ | |
130 | struct lacp *lacp; /* LACP handle or null. */ | |
131 | ||
132 | enum port_vlan_mode vlan_mode; /* VLAN mode. */ | |
fed8962a EG |
133 | uint16_t qinq_ethtype; /* Ethertype of dot1q-tunnel interface |
134 | * either 0x8100 or 0x88a8. */ | |
46c88433 EJ |
135 | int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */ |
136 | unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1. | |
137 | * NULL if all VLANs are trunked. */ | |
fed8962a EG |
138 | unsigned long *cvlans; /* Bitmap of allowed customer vlans, |
139 | * NULL if all VLANs are allowed */ | |
46c88433 EJ |
140 | bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */ |
141 | bool floodable; /* No port has OFPUTIL_PC_NO_FLOOD set? */ | |
c005f976 | 142 | bool protected; /* Protected port mode */ |
46c88433 EJ |
143 | }; |
144 | ||
145 | struct xport { | |
146 | struct hmap_node hmap_node; /* Node in global 'xports' map. */ | |
147 | struct ofport_dpif *ofport; /* Key in global 'xports map. */ | |
148 | ||
149 | struct hmap_node ofp_node; /* Node in parent xbridge 'xports' map. */ | |
150 | ofp_port_t ofp_port; /* Key in parent xbridge 'xports' map. */ | |
151 | ||
ab108418 ZB |
152 | struct hmap_node uuid_node; /* Node in global 'xports_uuid' map. */ |
153 | struct uuid uuid; /* Key in global 'xports_uuid' map. */ | |
154 | ||
46c88433 EJ |
155 | odp_port_t odp_port; /* Datapath port number or ODPP_NONE. */ |
156 | ||
ca6ba700 | 157 | struct ovs_list bundle_node; /* In parent xbundle (if it exists). */ |
46c88433 EJ |
158 | struct xbundle *xbundle; /* Parent xbundle or null. */ |
159 | ||
160 | struct netdev *netdev; /* 'ofport''s netdev. */ | |
161 | ||
162 | struct xbridge *xbridge; /* Parent bridge. */ | |
163 | struct xport *peer; /* Patch port peer or null. */ | |
164 | ||
165 | enum ofputil_port_config config; /* OpenFlow port configuration. */ | |
dd8cd4b4 | 166 | enum ofputil_port_state state; /* OpenFlow port state. */ |
92cf817b | 167 | int stp_port_no; /* STP port number or -1 if not in use. */ |
f025bcb7 | 168 | struct rstp_port *rstp_port; /* RSTP port or null. */ |
46c88433 | 169 | |
55954f6e EJ |
170 | struct hmap skb_priorities; /* Map of 'skb_priority_to_dscp's. */ |
171 | ||
46c88433 EJ |
172 | bool may_enable; /* May be enabled in bonds. */ |
173 | bool is_tunnel; /* Is a tunnel port. */ | |
875ab130 | 174 | enum netdev_pt_mode pt_mode; /* packet_type handling. */ |
46c88433 EJ |
175 | |
176 | struct cfm *cfm; /* CFM handle or null. */ | |
177 | struct bfd *bfd; /* BFD handle or null. */ | |
0477baa9 | 178 | struct lldp *lldp; /* LLDP handle or null. */ |
46c88433 EJ |
179 | }; |
180 | ||
4d0acc70 EJ |
181 | struct xlate_ctx { |
182 | struct xlate_in *xin; | |
183 | struct xlate_out *xout; | |
184 | ||
68f515ca | 185 | struct xlate_cfg *xcfg; |
46c88433 | 186 | const struct xbridge *xbridge; |
4d0acc70 EJ |
187 | |
188 | /* Flow at the last commit. */ | |
189 | struct flow base_flow; | |
190 | ||
191 | /* Tunnel IP destination address as received. This is stored separately | |
192 | * as the base_flow.tunnel is cleared on init to reflect the datapath | |
193 | * behavior. Used to make sure not to send tunneled output to ourselves, | |
194 | * which might lead to an infinite loop. This could happen easily | |
195 | * if a tunnel is marked as 'ip_remote=flow', and the flow does not | |
196 | * actually set the tun_dst field. */ | |
e4d3706c | 197 | struct in6_addr orig_tunnel_ipv6_dst; |
4d0acc70 | 198 | |
84cf3c1f JR |
199 | /* Stack for the push and pop actions. See comment above nx_stack_push() |
200 | * in nx-match.c for info on how the stack is stored. */ | |
4d0acc70 EJ |
201 | struct ofpbuf stack; |
202 | ||
203 | /* The rule that we are currently translating, or NULL. */ | |
204 | struct rule_dpif *rule; | |
205 | ||
49a73e0c BP |
206 | /* Flow translation populates this with wildcards relevant in translation. |
207 | * When 'xin->wc' is nonnull, this is the same pointer. When 'xin->wc' is | |
c0e638aa | 208 | * null, this is a pointer to a temporary buffer. */ |
49a73e0c BP |
209 | struct flow_wildcards *wc; |
210 | ||
1520ef4f BP |
211 | /* Output buffer for datapath actions. When 'xin->odp_actions' is nonnull, |
212 | * this is the same pointer. When 'xin->odp_actions' is null, this points | |
213 | * to a scratch ofpbuf. This allows code to add actions to | |
214 | * 'ctx->odp_actions' without worrying about whether the caller really | |
215 | * wants actions. */ | |
216 | struct ofpbuf *odp_actions; | |
217 | ||
790c5d26 BP |
218 | /* Statistics maintained by xlate_table_action(). |
219 | * | |
2d9b49dd | 220 | * These statistics limit the amount of work that a single flow |
790c5d26 BP |
221 | * translation can perform. The goal of the first of these, 'depth', is |
222 | * primarily to prevent translation from performing an infinite amount of | |
223 | * work. It counts the current depth of nested "resubmit"s (and a few | |
224 | * other activities); when a resubmit returns, it decreases. Resubmits to | |
225 | * tables in strictly monotonically increasing order don't contribute to | |
226 | * 'depth' because they cannot cause a flow translation to take an infinite | |
227 | * amount of time (because the number of tables is finite). Translation | |
228 | * aborts when 'depth' exceeds MAX_DEPTH. | |
229 | * | |
230 | * 'resubmits', on the other hand, prevents flow translation from | |
231 | * performing an extraordinarily large while still finite amount of work. | |
232 | * It counts the total number of resubmits (and a few other activities) | |
233 | * that have been executed. Returning from a resubmit does not affect this | |
234 | * counter. Thus, this limits the amount of work that a particular | |
235 | * translation can perform. Translation aborts when 'resubmits' exceeds | |
236 | * MAX_RESUBMITS (which is much larger than MAX_DEPTH). | |
237 | */ | |
790c5d26 | 238 | int depth; /* Current resubmit nesting depth. */ |
98b07853 | 239 | int resubmits; /* Total number of resubmits. */ |
5a070238 | 240 | bool in_group; /* Currently translating ofgroup, if true. */ |
029ca940 | 241 | bool in_action_set; /* Currently translating action_set, if true. */ |
331c07ac YHW |
242 | bool in_packet_out; /* Currently translating a packet_out msg, if |
243 | * true. */ | |
1fc11c59 JS |
244 | bool pending_encap; /* True when waiting to commit a pending |
245 | * encap action. */ | |
246 | struct ofpbuf *encap_data; /* May contain a pointer to an ofpbuf with | |
247 | * context for the datapath encap action.*/ | |
98b07853 | 248 | |
4d0acc70 | 249 | uint8_t table_id; /* OpenFlow table ID where flow was found. */ |
8b1e5560 JR |
250 | ovs_be64 rule_cookie; /* Cookie of the rule being translated. */ |
251 | uint32_t orig_skb_priority; /* Priority when packet arrived. */ | |
4d0acc70 | 252 | uint32_t sflow_n_outputs; /* Number of output ports. */ |
4e022ec0 | 253 | odp_port_t sflow_odp_port; /* Output port for composing sFlow action. */ |
2031ef97 | 254 | ofp_port_t nf_output_iface; /* Output interface index for NetFlow. */ |
4d0acc70 | 255 | bool exit; /* No further actions should be processed. */ |
3d6151f3 | 256 | mirror_mask_t mirrors; /* Bitmap of associated mirrors. */ |
1356dbd1 | 257 | int mirror_snaplen; /* Max size of a mirror packet in byte. */ |
7fdb60a7 | 258 | |
1d361a81 BP |
259 | /* Freezing Translation |
260 | * ==================== | |
e672ff9b | 261 | * |
1d361a81 BP |
262 | * At some point during translation, the code may recognize the need to halt |
263 | * and checkpoint the translation in a way that it can be restarted again | |
264 | * later. We call the checkpointing process "freezing" and the restarting | |
265 | * process "thawing". | |
e672ff9b | 266 | * |
1d361a81 | 267 | * The use cases for freezing are: |
e672ff9b | 268 | * |
1d361a81 BP |
269 | * - "Recirculation", where the translation process discovers that it |
270 | * doesn't have enough information to complete translation without | |
271 | * actually executing the actions that have already been translated, | |
272 | * which provides the additionally needed information. In these | |
273 | * situations, translation freezes translation and assigns the frozen | |
274 | * data a unique "recirculation ID", which it associates with the data | |
275 | * in a table in userspace (see ofproto-dpif-rid.h). It also adds a | |
276 | * OVS_ACTION_ATTR_RECIRC action specifying that ID to the datapath | |
277 | * actions. When a packet hits that action, the datapath looks its | |
278 | * flow up again using the ID. If there's a miss, it comes back to | |
279 | * userspace, which find the recirculation table entry for the ID, | |
280 | * thaws the associated frozen data, and continues translation from | |
281 | * that point given the additional information that is now known. | |
e672ff9b | 282 | * |
1d361a81 BP |
283 | * The archetypal example is MPLS. As MPLS is implemented in |
284 | * OpenFlow, the protocol that follows the last MPLS label becomes | |
285 | * known only when that label is popped by an OpenFlow action. That | |
286 | * means that Open vSwitch can't extract the headers beyond the MPLS | |
287 | * labels until the pop action is executed. Thus, at that point | |
288 | * translation uses the recirculation process to extract the headers | |
289 | * beyond the MPLS labels. | |
e672ff9b | 290 | * |
1d361a81 BP |
291 | * (OVS also uses OVS_ACTION_ATTR_RECIRC to implement hashing for |
292 | * output to bonds. OVS pre-populates all the datapath flows for bond | |
293 | * output in the datapath, though, which means that the elaborate | |
294 | * process of coming back to userspace for a second round of | |
295 | * translation isn't needed, and so bonds don't follow the above | |
296 | * process.) | |
e672ff9b | 297 | * |
77ab5fd2 BP |
298 | * - "Continuation". A continuation is a way for an OpenFlow controller |
299 | * to interpose on a packet's traversal of the OpenFlow tables. When | |
300 | * the translation process encounters a "controller" action with the | |
301 | * "pause" flag, it freezes translation, serializes the frozen data, | |
302 | * and sends it to an OpenFlow controller. The controller then | |
303 | * examines and possibly modifies the frozen data and eventually sends | |
304 | * it back to the switch, which thaws it and continues translation. | |
e672ff9b | 305 | * |
1d361a81 BP |
306 | * The main problem of freezing translation is preserving state, so that |
307 | * when the translation is thawed later it resumes from where it left off, | |
308 | * without disruption. In particular, actions must be preserved as follows: | |
309 | * | |
310 | * - If we're freezing because an action needed more information, the | |
311 | * action that prompted it. | |
312 | * | |
313 | * - Any actions remaining to be translated within the current flow. | |
314 | * | |
315 | * - If translation was frozen within a NXAST_RESUBMIT, then any actions | |
316 | * following the resubmit action. Resubmit actions can be nested, so | |
317 | * this has to go all the way up the control stack. | |
e672ff9b JR |
318 | * |
319 | * - The OpenFlow 1.1+ action set. | |
320 | * | |
321 | * State that actions and flow table lookups can depend on, such as the | |
322 | * following, must also be preserved: | |
323 | * | |
324 | * - Metadata fields (input port, registers, OF1.1+ metadata, ...). | |
325 | * | |
1d361a81 | 326 | * - The stack used by NXAST_STACK_PUSH and NXAST_STACK_POP actions. |
e672ff9b JR |
327 | * |
328 | * - The table ID and cookie of the flow being translated at each level | |
1d361a81 BP |
329 | * of the control stack, because these can become visible through |
330 | * OFPAT_CONTROLLER actions (and other ways). | |
e672ff9b JR |
331 | * |
332 | * Translation allows for the control of this state preservation via these | |
1d361a81 BP |
333 | * members. When a need to freeze translation is identified, the |
334 | * translation process: | |
e672ff9b | 335 | * |
1d361a81 | 336 | * 1. Sets 'freezing' to true. |
e672ff9b JR |
337 | * |
338 | * 2. Sets 'exit' to true to tell later steps that we're exiting from the | |
339 | * translation process. | |
340 | * | |
1d361a81 BP |
341 | * 3. Adds an OFPACT_UNROLL_XLATE action to 'frozen_actions', and points |
342 | * frozen_actions.header to the action to make it easy to find it later. | |
343 | * This action holds the current table ID and cookie so that they can be | |
344 | * restored during a post-recirculation upcall translation. | |
e672ff9b JR |
345 | * |
346 | * 4. Adds the action that prompted recirculation and any actions following | |
1d361a81 | 347 | * it within the same flow to 'frozen_actions', so that they can be |
8a5fb3b4 | 348 | * executed during a post-recirculation upcall translation. |
e672ff9b JR |
349 | * |
350 | * 5. Returns. | |
351 | * | |
352 | * 6. The action that prompted recirculation might be nested in a stack of | |
353 | * nested "resubmit"s that have actions remaining. Each of these notices | |
1d361a81 BP |
354 | * that we're exiting and freezing and responds by adding more |
355 | * OFPACT_UNROLL_XLATE actions to 'frozen_actions', as necessary, | |
356 | * followed by any actions that were yet unprocessed. | |
e672ff9b | 357 | * |
1d361a81 BP |
358 | * If we're freezing because of recirculation, the caller generates a |
359 | * recirculation ID and associates all the state produced by this process | |
360 | * with it. For post-recirculation upcall translation, the caller passes it | |
361 | * back in for the new translation to execute. The process yielded a set of | |
362 | * ofpacts that can be translated directly, so it is not much of a special | |
363 | * case at that point. | |
e672ff9b | 364 | */ |
1d361a81 | 365 | bool freezing; |
53cc166a JR |
366 | bool recirc_update_dp_hash; /* Generated recirculation will be preceded |
367 | * by datapath HASH action to get an updated | |
368 | * dp_hash after recirculation. */ | |
369 | uint32_t dp_hash_alg; | |
370 | uint32_t dp_hash_basis; | |
1d361a81 | 371 | struct ofpbuf frozen_actions; |
77ab5fd2 | 372 | const struct ofpact_controller *pause; |
e672ff9b | 373 | |
e12ec36b SH |
374 | /* True if a packet was but is no longer MPLS (due to an MPLS pop action). |
375 | * This is a trigger for recirculation in cases where translating an action | |
376 | * or looking up a flow requires access to the fields of the packet after | |
377 | * the MPLS label stack that was originally present. */ | |
378 | bool was_mpls; | |
379 | ||
07659514 JS |
380 | /* True if conntrack has been performed on this packet during processing |
381 | * on the current bridge. This is used to determine whether conntrack | |
1d361a81 | 382 | * state from the datapath should be honored after thawing. */ |
07659514 JS |
383 | bool conntracked; |
384 | ||
9ac0aada JR |
385 | /* Pointer to an embedded NAT action in a conntrack action, or NULL. */ |
386 | struct ofpact_nat *ct_nat_action; | |
387 | ||
7fdb60a7 SH |
388 | /* OpenFlow 1.1+ action set. |
389 | * | |
390 | * 'action_set' accumulates "struct ofpact"s added by OFPACT_WRITE_ACTIONS. | |
391 | * When translation is otherwise complete, ofpacts_execute_action_set() | |
392 | * converts it to a set of "struct ofpact"s that can be translated into | |
ed9c9e3e | 393 | * datapath actions. */ |
c61f3870 | 394 | bool action_set_has_group; /* Action set contains OFPACT_GROUP? */ |
7fdb60a7 | 395 | struct ofpbuf action_set; /* Action set. */ |
fff1b9c0 JR |
396 | |
397 | enum xlate_error error; /* Translation failed. */ | |
4d0acc70 EJ |
398 | }; |
399 | ||
f0fb825a EG |
400 | /* Structure to track VLAN manipulation */ |
401 | struct xvlan_single { | |
402 | uint16_t tpid; | |
403 | uint16_t vid; | |
404 | uint16_t pcp; | |
405 | }; | |
406 | ||
407 | struct xvlan { | |
408 | struct xvlan_single v[FLOW_MAX_VLAN_HEADERS]; | |
409 | }; | |
410 | ||
fff1b9c0 JR |
411 | const char *xlate_strerror(enum xlate_error error) |
412 | { | |
413 | switch (error) { | |
414 | case XLATE_OK: | |
415 | return "OK"; | |
416 | case XLATE_BRIDGE_NOT_FOUND: | |
417 | return "Bridge not found"; | |
418 | case XLATE_RECURSION_TOO_DEEP: | |
419 | return "Recursion too deep"; | |
420 | case XLATE_TOO_MANY_RESUBMITS: | |
421 | return "Too many resubmits"; | |
422 | case XLATE_STACK_TOO_DEEP: | |
423 | return "Stack too deep"; | |
424 | case XLATE_NO_RECIRCULATION_CONTEXT: | |
425 | return "No recirculation context"; | |
426 | case XLATE_RECIRCULATION_CONFLICT: | |
427 | return "Recirculation conflict"; | |
428 | case XLATE_TOO_MANY_MPLS_LABELS: | |
429 | return "Too many MPLS labels"; | |
8d8ab6c2 JG |
430 | case XLATE_INVALID_TUNNEL_METADATA: |
431 | return "Invalid tunnel metadata"; | |
7873e106 ZB |
432 | case XLATE_UNSUPPORTED_PACKET_TYPE: |
433 | return "Unsupported packet type"; | |
fff1b9c0 JR |
434 | } |
435 | return "Unknown error"; | |
436 | } | |
437 | ||
ed9c9e3e | 438 | static void xlate_action_set(struct xlate_ctx *ctx); |
704bb0bf | 439 | static void xlate_commit_actions(struct xlate_ctx *ctx); |
ed9c9e3e | 440 | |
8bdb2bdb | 441 | static void |
48f704f4 AZ |
442 | patch_port_output(struct xlate_ctx *ctx, const struct xport *in_dev, |
443 | struct xport *out_dev); | |
8bdb2bdb | 444 | |
1d741d6d | 445 | static void |
1d361a81 | 446 | ctx_trigger_freeze(struct xlate_ctx *ctx) |
1d741d6d JR |
447 | { |
448 | ctx->exit = true; | |
1d361a81 | 449 | ctx->freezing = true; |
1d741d6d JR |
450 | } |
451 | ||
53cc166a JR |
452 | static void |
453 | ctx_trigger_recirculate_with_hash(struct xlate_ctx *ctx, uint32_t type, | |
454 | uint32_t basis) | |
455 | { | |
456 | ctx->exit = true; | |
457 | ctx->freezing = true; | |
458 | ctx->recirc_update_dp_hash = true; | |
459 | ctx->dp_hash_alg = type; | |
460 | ctx->dp_hash_basis = basis; | |
461 | } | |
462 | ||
1d741d6d | 463 | static bool |
1d361a81 | 464 | ctx_first_frozen_action(const struct xlate_ctx *ctx) |
1d741d6d | 465 | { |
1d361a81 | 466 | return !ctx->frozen_actions.size; |
e672ff9b JR |
467 | } |
468 | ||
3293cb85 | 469 | static void |
1d361a81 | 470 | ctx_cancel_freeze(struct xlate_ctx *ctx) |
3293cb85 | 471 | { |
1d361a81 BP |
472 | if (ctx->freezing) { |
473 | ctx->freezing = false; | |
53cc166a | 474 | ctx->recirc_update_dp_hash = false; |
1d361a81 BP |
475 | ofpbuf_clear(&ctx->frozen_actions); |
476 | ctx->frozen_actions.header = NULL; | |
3293cb85 BP |
477 | } |
478 | } | |
479 | ||
77ab5fd2 | 480 | static void finish_freezing(struct xlate_ctx *ctx); |
e672ff9b | 481 | |
9583bc14 EJ |
482 | /* A controller may use OFPP_NONE as the ingress port to indicate that |
483 | * it did not arrive on a "real" port. 'ofpp_none_bundle' exists for | |
484 | * when an input bundle is needed for validation (e.g., mirroring or | |
485 | * OFPP_NORMAL processing). It is not connected to an 'ofproto' or have | |
3548d242 BP |
486 | * any 'port' structs, so care must be taken when dealing with it. */ |
487 | static struct xbundle ofpp_none_bundle = { | |
488 | .name = "OFPP_NONE", | |
489 | .vlan_mode = PORT_VLAN_TRUNK | |
490 | }; | |
9583bc14 | 491 | |
55954f6e EJ |
492 | /* Node in 'xport''s 'skb_priorities' map. Used to maintain a map from |
493 | * 'priority' (the datapath's term for QoS queue) to the dscp bits which all | |
494 | * traffic egressing the 'ofport' with that priority should be marked with. */ | |
495 | struct skb_priority_to_dscp { | |
496 | struct hmap_node hmap_node; /* Node in 'ofport_dpif''s 'skb_priorities'. */ | |
497 | uint32_t skb_priority; /* Priority of this queue (see struct flow). */ | |
498 | ||
499 | uint8_t dscp; /* DSCP bits to mark outgoing traffic with. */ | |
500 | }; | |
501 | ||
84f0f298 RW |
502 | /* Xlate config contains hash maps of all bridges, bundles and ports. |
503 | * Xcfgp contains the pointer to the current xlate configuration. | |
504 | * When the main thread needs to change the configuration, it copies xcfgp to | |
505 | * new_xcfg and edits new_xcfg. This enables the use of RCU locking which | |
506 | * does not block handler and revalidator threads. */ | |
507 | struct xlate_cfg { | |
508 | struct hmap xbridges; | |
509 | struct hmap xbundles; | |
510 | struct hmap xports; | |
ab108418 | 511 | struct hmap xports_uuid; |
84f0f298 | 512 | }; |
b1b72f2d | 513 | static OVSRCU_TYPE(struct xlate_cfg *) xcfgp = OVSRCU_INITIALIZER(NULL); |
f439f23b | 514 | static struct xlate_cfg *new_xcfg = NULL; |
46c88433 | 515 | |
96c3a6e5 AZ |
516 | typedef void xlate_actions_handler(const struct ofpact *, size_t ofpacts_len, |
517 | struct xlate_ctx *, bool); | |
46c88433 | 518 | static bool may_receive(const struct xport *, struct xlate_ctx *); |
9583bc14 | 519 | static void do_xlate_actions(const struct ofpact *, size_t ofpacts_len, |
feee58b9 | 520 | struct xlate_ctx *, bool); |
96c3a6e5 AZ |
521 | static void clone_xlate_actions(const struct ofpact *, size_t ofpacts_len, |
522 | struct xlate_ctx *, bool); | |
adcf00ba | 523 | static void xlate_normal(struct xlate_ctx *); |
6d328fa2 SH |
524 | static void xlate_table_action(struct xlate_ctx *, ofp_port_t in_port, |
525 | uint8_t table_id, bool may_packet_in, | |
feee58b9 | 526 | bool honor_table_miss, bool with_ct_orig, |
96c3a6e5 AZ |
527 | bool is_last_action, xlate_actions_handler *); |
528 | ||
2d9b49dd BP |
529 | static bool input_vid_is_valid(const struct xlate_ctx *, |
530 | uint16_t vid, struct xbundle *); | |
f0fb825a EG |
531 | static void xvlan_copy(struct xvlan *dst, const struct xvlan *src); |
532 | static void xvlan_pop(struct xvlan *src); | |
fed8962a | 533 | static void xvlan_push_uninit(struct xvlan *src); |
f0fb825a EG |
534 | static void xvlan_extract(const struct flow *, struct xvlan *); |
535 | static void xvlan_put(struct flow *, const struct xvlan *); | |
536 | static void xvlan_input_translate(const struct xbundle *, | |
537 | const struct xvlan *in, | |
538 | struct xvlan *xvlan); | |
539 | static void xvlan_output_translate(const struct xbundle *, | |
540 | const struct xvlan *xvlan, | |
541 | struct xvlan *out); | |
46c88433 | 542 | static void output_normal(struct xlate_ctx *, const struct xbundle *, |
f0fb825a | 543 | const struct xvlan *); |
e93ef1c7 JR |
544 | |
545 | /* Optional bond recirculation parameter to compose_output_action(). */ | |
546 | struct xlate_bond_recirc { | |
547 | uint32_t recirc_id; /* !0 Use recirculation instead of output. */ | |
548 | uint8_t hash_alg; /* !0 Compute hash for recirc before. */ | |
549 | uint32_t hash_basis; /* Compute hash for recirc before. */ | |
550 | }; | |
551 | ||
552 | static void compose_output_action(struct xlate_ctx *, ofp_port_t ofp_port, | |
feee58b9 | 553 | const struct xlate_bond_recirc *xr, |
11938578 | 554 | bool is_last_action, bool truncate); |
9583bc14 | 555 | |
84f0f298 RW |
556 | static struct xbridge *xbridge_lookup(struct xlate_cfg *, |
557 | const struct ofproto_dpif *); | |
290835f9 BP |
558 | static struct xbridge *xbridge_lookup_by_uuid(struct xlate_cfg *, |
559 | const struct uuid *); | |
84f0f298 RW |
560 | static struct xbundle *xbundle_lookup(struct xlate_cfg *, |
561 | const struct ofbundle *); | |
562 | static struct xport *xport_lookup(struct xlate_cfg *, | |
563 | const struct ofport_dpif *); | |
43e73536 ZB |
564 | static struct xport *xport_lookup_by_uuid(struct xlate_cfg *, |
565 | const struct uuid *); | |
46c88433 | 566 | static struct xport *get_ofp_port(const struct xbridge *, ofp_port_t ofp_port); |
55954f6e EJ |
567 | static struct skb_priority_to_dscp *get_skb_priority(const struct xport *, |
568 | uint32_t skb_priority); | |
569 | static void clear_skb_priorities(struct xport *); | |
16194afd | 570 | static size_t count_skb_priorities(const struct xport *); |
55954f6e EJ |
571 | static bool dscp_from_skb_priority(const struct xport *, uint32_t skb_priority, |
572 | uint8_t *dscp); | |
46c88433 | 573 | |
84f0f298 RW |
574 | static void xlate_xbridge_init(struct xlate_cfg *, struct xbridge *); |
575 | static void xlate_xbundle_init(struct xlate_cfg *, struct xbundle *); | |
576 | static void xlate_xport_init(struct xlate_cfg *, struct xport *); | |
9efd308e | 577 | static void xlate_xbridge_set(struct xbridge *, struct dpif *, |
9efd308e DV |
578 | const struct mac_learning *, struct stp *, |
579 | struct rstp *, const struct mcast_snooping *, | |
580 | const struct mbridge *, | |
581 | const struct dpif_sflow *, | |
582 | const struct dpif_ipfix *, | |
2f47cdf4 | 583 | const struct netflow *, |
84f0f298 | 584 | bool forward_bpdu, bool has_in_band, |
b440dd8c | 585 | const struct dpif_backer_support *); |
84f0f298 | 586 | static void xlate_xbundle_set(struct xbundle *xbundle, |
f0fb825a | 587 | enum port_vlan_mode vlan_mode, |
fed8962a EG |
588 | uint16_t qinq_ethtype, int vlan, |
589 | unsigned long *trunks, unsigned long *cvlans, | |
f0fb825a | 590 | bool use_priority_tags, |
84f0f298 | 591 | const struct bond *bond, const struct lacp *lacp, |
c005f976 | 592 | bool floodable, bool protected); |
84f0f298 RW |
593 | static void xlate_xport_set(struct xport *xport, odp_port_t odp_port, |
594 | const struct netdev *netdev, const struct cfm *cfm, | |
0477baa9 DF |
595 | const struct bfd *bfd, const struct lldp *lldp, |
596 | int stp_port_no, const struct rstp_port *rstp_port, | |
84f0f298 RW |
597 | enum ofputil_port_config config, |
598 | enum ofputil_port_state state, bool is_tunnel, | |
599 | bool may_enable); | |
600 | static void xlate_xbridge_remove(struct xlate_cfg *, struct xbridge *); | |
601 | static void xlate_xbundle_remove(struct xlate_cfg *, struct xbundle *); | |
602 | static void xlate_xport_remove(struct xlate_cfg *, struct xport *); | |
603 | static void xlate_xbridge_copy(struct xbridge *); | |
604 | static void xlate_xbundle_copy(struct xbridge *, struct xbundle *); | |
605 | static void xlate_xport_copy(struct xbridge *, struct xbundle *, | |
606 | struct xport *); | |
607 | static void xlate_xcfg_free(struct xlate_cfg *); | |
2d9b49dd BP |
608 | \f |
609 | /* Tracing helpers. */ | |
610 | ||
611 | /* If tracing is enabled in 'ctx', creates a new trace node and appends it to | |
612 | * the list of nodes maintained in ctx->xin. The new node has type 'type' and | |
613 | * its text is created from 'format' by treating it as a printf format string. | |
614 | * Returns the list of nodes embedded within the new trace node; ordinarily, | |
615 | * the calleer can ignore this, but it is useful if the caller needs to nest | |
616 | * more trace nodes within the new node. | |
617 | * | |
618 | * If tracing is not enabled, does nothing and returns NULL. */ | |
619 | static struct ovs_list * OVS_PRINTF_FORMAT(3, 4) | |
620 | xlate_report(const struct xlate_ctx *ctx, enum oftrace_node_type type, | |
621 | const char *format, ...) | |
34dd0d78 | 622 | { |
2d9b49dd BP |
623 | struct ovs_list *subtrace = NULL; |
624 | if (OVS_UNLIKELY(ctx->xin->trace)) { | |
c1b3756c | 625 | va_list args; |
c1b3756c | 626 | va_start(args, format); |
2d9b49dd BP |
627 | char *text = xvasprintf(format, args); |
628 | subtrace = &oftrace_report(ctx->xin->trace, type, text)->subs; | |
c1b3756c | 629 | va_end(args); |
2d9b49dd | 630 | free(text); |
34dd0d78 | 631 | } |
2d9b49dd | 632 | return subtrace; |
34dd0d78 | 633 | } |
84f0f298 | 634 | |
2d9b49dd BP |
635 | /* This is like xlate_report() for errors that are serious enough that we |
636 | * should log them even if we are not tracing. */ | |
637 | static void OVS_PRINTF_FORMAT(2, 3) | |
638 | xlate_report_error(const struct xlate_ctx *ctx, const char *format, ...) | |
639 | { | |
640 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
641 | if (!OVS_UNLIKELY(ctx->xin->trace) | |
642 | && (!ctx->xin->packet || VLOG_DROP_WARN(&rl))) { | |
643 | return; | |
644 | } | |
645 | ||
646 | struct ds s = DS_EMPTY_INITIALIZER; | |
647 | va_list args; | |
648 | va_start(args, format); | |
649 | ds_put_format_valist(&s, format, args); | |
650 | va_end(args); | |
651 | ||
652 | if (ctx->xin->trace) { | |
653 | oftrace_report(ctx->xin->trace, OFT_ERROR, ds_cstr(&s)); | |
654 | } else { | |
655 | ds_put_cstr(&s, " while processing "); | |
50f96b10 | 656 | flow_format(&s, &ctx->base_flow, NULL); |
2d9b49dd BP |
657 | ds_put_format(&s, " on bridge %s", ctx->xbridge->name); |
658 | VLOG_WARN("%s", ds_cstr(&s)); | |
659 | } | |
660 | ds_destroy(&s); | |
661 | } | |
662 | ||
663 | /* This is like xlate_report() for messages that should be logged at debug | |
664 | * level (even if we are not tracing) because they can be valuable for | |
665 | * debugging. */ | |
666 | static void OVS_PRINTF_FORMAT(3, 4) | |
667 | xlate_report_debug(const struct xlate_ctx *ctx, enum oftrace_node_type type, | |
668 | const char *format, ...) | |
669 | { | |
670 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(30, 300); | |
671 | if (!OVS_UNLIKELY(ctx->xin->trace) | |
672 | && (!ctx->xin->packet || VLOG_DROP_DBG(&rl))) { | |
673 | return; | |
674 | } | |
675 | ||
676 | struct ds s = DS_EMPTY_INITIALIZER; | |
677 | va_list args; | |
678 | va_start(args, format); | |
679 | ds_put_format_valist(&s, format, args); | |
680 | va_end(args); | |
fff1b9c0 | 681 | |
2d9b49dd BP |
682 | if (ctx->xin->trace) { |
683 | oftrace_report(ctx->xin->trace, type, ds_cstr(&s)); | |
684 | } else { | |
685 | VLOG_DBG("bridge %s: %s", ctx->xbridge->name, ds_cstr(&s)); | |
686 | } | |
687 | ds_destroy(&s); | |
688 | } | |
fff1b9c0 | 689 | |
2d9b49dd BP |
690 | /* If tracing is enabled in 'ctx', appends a node of the given 'type' to the |
691 | * trace, whose text is 'title' followed by a formatted version of the | |
692 | * 'ofpacts_len' OpenFlow actions in 'ofpacts'. | |
693 | * | |
694 | * If tracing is not enabled, does nothing. */ | |
695 | static void | |
696 | xlate_report_actions(const struct xlate_ctx *ctx, enum oftrace_node_type type, | |
697 | const char *title, | |
d6bef3cc BP |
698 | const struct ofpact *ofpacts, size_t ofpacts_len) |
699 | { | |
2d9b49dd | 700 | if (OVS_UNLIKELY(ctx->xin->trace)) { |
d6bef3cc | 701 | struct ds s = DS_EMPTY_INITIALIZER; |
2d9b49dd | 702 | ds_put_format(&s, "%s: ", title); |
50f96b10 | 703 | ofpacts_format(ofpacts, ofpacts_len, NULL, &s); |
2d9b49dd | 704 | oftrace_report(ctx->xin->trace, type, ds_cstr(&s)); |
d6bef3cc BP |
705 | ds_destroy(&s); |
706 | } | |
707 | } | |
708 | ||
2d9b49dd BP |
709 | /* If tracing is enabled in 'ctx', appends a node of type OFT_DETAIL to the |
710 | * trace, whose the message is a formatted version of the OpenFlow action set. | |
711 | * 'verb' should be "was" or "is", depending on whether the action set reported | |
712 | * is the new action set or the old one. | |
713 | * | |
714 | * If tracing is not enabled, does nothing. */ | |
715 | static void | |
716 | xlate_report_action_set(const struct xlate_ctx *ctx, const char *verb) | |
717 | { | |
718 | if (OVS_UNLIKELY(ctx->xin->trace)) { | |
719 | struct ofpbuf action_list; | |
720 | ofpbuf_init(&action_list, 0); | |
721 | ofpacts_execute_action_set(&action_list, &ctx->action_set); | |
722 | if (action_list.size) { | |
723 | struct ds s = DS_EMPTY_INITIALIZER; | |
50f96b10 | 724 | ofpacts_format(action_list.data, action_list.size, NULL, &s); |
2d9b49dd BP |
725 | xlate_report(ctx, OFT_DETAIL, "action set %s: %s", |
726 | verb, ds_cstr(&s)); | |
727 | ds_destroy(&s); | |
728 | } else { | |
729 | xlate_report(ctx, OFT_DETAIL, "action set %s empty", verb); | |
730 | } | |
731 | ofpbuf_uninit(&action_list); | |
732 | } | |
733 | } | |
734 | ||
735 | ||
736 | /* If tracing is enabled in 'ctx', appends a node representing 'rule' (in | |
737 | * OpenFlow table 'table_id') to the trace and makes this node the parent for | |
738 | * future trace nodes. The caller should save ctx->xin->trace before calling | |
739 | * this function, then after tracing all of the activities under the table, | |
740 | * restore its previous value. | |
741 | * | |
742 | * If tracing is not enabled, does nothing. */ | |
743 | static void | |
744 | xlate_report_table(const struct xlate_ctx *ctx, struct rule_dpif *rule, | |
745 | uint8_t table_id) | |
746 | { | |
747 | if (OVS_LIKELY(!ctx->xin->trace)) { | |
748 | return; | |
749 | } | |
750 | ||
751 | struct ds s = DS_EMPTY_INITIALIZER; | |
752 | ds_put_format(&s, "%2d. ", table_id); | |
753 | if (rule == ctx->xin->ofproto->miss_rule) { | |
754 | ds_put_cstr(&s, "No match, and a \"packet-in\" is called for."); | |
755 | } else if (rule == ctx->xin->ofproto->no_packet_in_rule) { | |
756 | ds_put_cstr(&s, "No match."); | |
757 | } else if (rule == ctx->xin->ofproto->drop_frags_rule) { | |
758 | ds_put_cstr(&s, "Packets are IP fragments and " | |
759 | "the fragment handling mode is \"drop\"."); | |
760 | } else { | |
761 | minimatch_format(&rule->up.cr.match, | |
762 | ofproto_get_tun_tab(&ctx->xin->ofproto->up), | |
50f96b10 | 763 | NULL, &s, OFP_DEFAULT_PRIORITY); |
2d9b49dd BP |
764 | if (ds_last(&s) != ' ') { |
765 | ds_put_cstr(&s, ", "); | |
766 | } | |
767 | ds_put_format(&s, "priority %d", rule->up.cr.priority); | |
768 | if (rule->up.flow_cookie) { | |
769 | ds_put_format(&s, ", cookie %#"PRIx64, | |
770 | ntohll(rule->up.flow_cookie)); | |
771 | } | |
772 | } | |
773 | ctx->xin->trace = &oftrace_report(ctx->xin->trace, OFT_TABLE, | |
774 | ds_cstr(&s))->subs; | |
775 | ds_destroy(&s); | |
776 | } | |
777 | ||
778 | /* If tracing is enabled in 'ctx', adds an OFT_DETAIL trace node to 'ctx' | |
779 | * reporting the value of subfield 'sf'. | |
780 | * | |
781 | * If tracing is not enabled, does nothing. */ | |
782 | static void | |
783 | xlate_report_subfield(const struct xlate_ctx *ctx, | |
784 | const struct mf_subfield *sf) | |
785 | { | |
786 | if (OVS_UNLIKELY(ctx->xin->trace)) { | |
787 | struct ds s = DS_EMPTY_INITIALIZER; | |
788 | mf_format_subfield(sf, &s); | |
789 | ds_put_cstr(&s, " is now "); | |
790 | ||
791 | if (sf->ofs == 0 && sf->n_bits >= sf->field->n_bits) { | |
792 | union mf_value value; | |
793 | mf_get_value(sf->field, &ctx->xin->flow, &value); | |
50f96b10 | 794 | mf_format(sf->field, &value, NULL, NULL, &s); |
2d9b49dd BP |
795 | } else { |
796 | union mf_subvalue cst; | |
797 | mf_read_subfield(sf, &ctx->xin->flow, &cst); | |
798 | ds_put_hex(&s, &cst, sizeof cst); | |
799 | } | |
800 | ||
801 | xlate_report(ctx, OFT_DETAIL, "%s", ds_cstr(&s)); | |
802 | ||
803 | ds_destroy(&s); | |
804 | } | |
805 | } | |
806 | \f | |
84f0f298 RW |
807 | static void |
808 | xlate_xbridge_init(struct xlate_cfg *xcfg, struct xbridge *xbridge) | |
809 | { | |
417e7e66 | 810 | ovs_list_init(&xbridge->xbundles); |
84f0f298 RW |
811 | hmap_init(&xbridge->xports); |
812 | hmap_insert(&xcfg->xbridges, &xbridge->hmap_node, | |
813 | hash_pointer(xbridge->ofproto, 0)); | |
814 | } | |
815 | ||
816 | static void | |
817 | xlate_xbundle_init(struct xlate_cfg *xcfg, struct xbundle *xbundle) | |
818 | { | |
417e7e66 BW |
819 | ovs_list_init(&xbundle->xports); |
820 | ovs_list_insert(&xbundle->xbridge->xbundles, &xbundle->list_node); | |
84f0f298 RW |
821 | hmap_insert(&xcfg->xbundles, &xbundle->hmap_node, |
822 | hash_pointer(xbundle->ofbundle, 0)); | |
823 | } | |
824 | ||
825 | static void | |
826 | xlate_xport_init(struct xlate_cfg *xcfg, struct xport *xport) | |
827 | { | |
828 | hmap_init(&xport->skb_priorities); | |
829 | hmap_insert(&xcfg->xports, &xport->hmap_node, | |
830 | hash_pointer(xport->ofport, 0)); | |
831 | hmap_insert(&xport->xbridge->xports, &xport->ofp_node, | |
832 | hash_ofp_port(xport->ofp_port)); | |
ab108418 ZB |
833 | hmap_insert(&xcfg->xports_uuid, &xport->uuid_node, |
834 | uuid_hash(&xport->uuid)); | |
84f0f298 RW |
835 | } |
836 | ||
837 | static void | |
838 | xlate_xbridge_set(struct xbridge *xbridge, | |
839 | struct dpif *dpif, | |
ec89fc6f | 840 | const struct mac_learning *ml, struct stp *stp, |
9efd308e | 841 | struct rstp *rstp, const struct mcast_snooping *ms, |
ec89fc6f | 842 | const struct mbridge *mbridge, |
46c88433 | 843 | const struct dpif_sflow *sflow, |
ce3955be | 844 | const struct dpif_ipfix *ipfix, |
2f47cdf4 | 845 | const struct netflow *netflow, |
4b97b70d | 846 | bool forward_bpdu, bool has_in_band, |
b440dd8c | 847 | const struct dpif_backer_support *support) |
46c88433 | 848 | { |
46c88433 EJ |
849 | if (xbridge->ml != ml) { |
850 | mac_learning_unref(xbridge->ml); | |
851 | xbridge->ml = mac_learning_ref(ml); | |
852 | } | |
853 | ||
6d95c4e8 FL |
854 | if (xbridge->ms != ms) { |
855 | mcast_snooping_unref(xbridge->ms); | |
856 | xbridge->ms = mcast_snooping_ref(ms); | |
857 | } | |
858 | ||
46c88433 EJ |
859 | if (xbridge->mbridge != mbridge) { |
860 | mbridge_unref(xbridge->mbridge); | |
861 | xbridge->mbridge = mbridge_ref(mbridge); | |
862 | } | |
863 | ||
864 | if (xbridge->sflow != sflow) { | |
865 | dpif_sflow_unref(xbridge->sflow); | |
866 | xbridge->sflow = dpif_sflow_ref(sflow); | |
867 | } | |
868 | ||
869 | if (xbridge->ipfix != ipfix) { | |
870 | dpif_ipfix_unref(xbridge->ipfix); | |
871 | xbridge->ipfix = dpif_ipfix_ref(ipfix); | |
872 | } | |
873 | ||
9d189a50 EJ |
874 | if (xbridge->stp != stp) { |
875 | stp_unref(xbridge->stp); | |
876 | xbridge->stp = stp_ref(stp); | |
877 | } | |
878 | ||
9efd308e DV |
879 | if (xbridge->rstp != rstp) { |
880 | rstp_unref(xbridge->rstp); | |
881 | xbridge->rstp = rstp_ref(rstp); | |
882 | } | |
883 | ||
ce3955be EJ |
884 | if (xbridge->netflow != netflow) { |
885 | netflow_unref(xbridge->netflow); | |
886 | xbridge->netflow = netflow_ref(netflow); | |
887 | } | |
888 | ||
89a8a7f0 | 889 | xbridge->dpif = dpif; |
46c88433 EJ |
890 | xbridge->forward_bpdu = forward_bpdu; |
891 | xbridge->has_in_band = has_in_band; | |
b440dd8c | 892 | xbridge->support = *support; |
46c88433 EJ |
893 | } |
894 | ||
84f0f298 RW |
895 | static void |
896 | xlate_xbundle_set(struct xbundle *xbundle, | |
fed8962a EG |
897 | enum port_vlan_mode vlan_mode, uint16_t qinq_ethtype, |
898 | int vlan, unsigned long *trunks, unsigned long *cvlans, | |
f0fb825a | 899 | bool use_priority_tags, |
84f0f298 | 900 | const struct bond *bond, const struct lacp *lacp, |
c005f976 | 901 | bool floodable, bool protected) |
84f0f298 RW |
902 | { |
903 | ovs_assert(xbundle->xbridge); | |
904 | ||
905 | xbundle->vlan_mode = vlan_mode; | |
fed8962a | 906 | xbundle->qinq_ethtype = qinq_ethtype; |
84f0f298 RW |
907 | xbundle->vlan = vlan; |
908 | xbundle->trunks = trunks; | |
fed8962a | 909 | xbundle->cvlans = cvlans; |
84f0f298 RW |
910 | xbundle->use_priority_tags = use_priority_tags; |
911 | xbundle->floodable = floodable; | |
c005f976 | 912 | xbundle->protected = protected; |
84f0f298 RW |
913 | |
914 | if (xbundle->bond != bond) { | |
915 | bond_unref(xbundle->bond); | |
916 | xbundle->bond = bond_ref(bond); | |
917 | } | |
918 | ||
919 | if (xbundle->lacp != lacp) { | |
920 | lacp_unref(xbundle->lacp); | |
921 | xbundle->lacp = lacp_ref(lacp); | |
922 | } | |
923 | } | |
924 | ||
925 | static void | |
926 | xlate_xport_set(struct xport *xport, odp_port_t odp_port, | |
927 | const struct netdev *netdev, const struct cfm *cfm, | |
0477baa9 | 928 | const struct bfd *bfd, const struct lldp *lldp, int stp_port_no, |
f025bcb7 | 929 | const struct rstp_port* rstp_port, |
84f0f298 RW |
930 | enum ofputil_port_config config, enum ofputil_port_state state, |
931 | bool is_tunnel, bool may_enable) | |
932 | { | |
933 | xport->config = config; | |
934 | xport->state = state; | |
935 | xport->stp_port_no = stp_port_no; | |
936 | xport->is_tunnel = is_tunnel; | |
875ab130 | 937 | xport->pt_mode = netdev_get_pt_mode(netdev); |
84f0f298 RW |
938 | xport->may_enable = may_enable; |
939 | xport->odp_port = odp_port; | |
940 | ||
f025bcb7 JR |
941 | if (xport->rstp_port != rstp_port) { |
942 | rstp_port_unref(xport->rstp_port); | |
943 | xport->rstp_port = rstp_port_ref(rstp_port); | |
944 | } | |
945 | ||
84f0f298 RW |
946 | if (xport->cfm != cfm) { |
947 | cfm_unref(xport->cfm); | |
948 | xport->cfm = cfm_ref(cfm); | |
949 | } | |
950 | ||
951 | if (xport->bfd != bfd) { | |
952 | bfd_unref(xport->bfd); | |
953 | xport->bfd = bfd_ref(bfd); | |
954 | } | |
955 | ||
0477baa9 DF |
956 | if (xport->lldp != lldp) { |
957 | lldp_unref(xport->lldp); | |
958 | xport->lldp = lldp_ref(lldp); | |
959 | } | |
960 | ||
84f0f298 RW |
961 | if (xport->netdev != netdev) { |
962 | netdev_close(xport->netdev); | |
963 | xport->netdev = netdev_ref(netdev); | |
964 | } | |
965 | } | |
966 | ||
967 | static void | |
968 | xlate_xbridge_copy(struct xbridge *xbridge) | |
969 | { | |
970 | struct xbundle *xbundle; | |
971 | struct xport *xport; | |
972 | struct xbridge *new_xbridge = xzalloc(sizeof *xbridge); | |
973 | new_xbridge->ofproto = xbridge->ofproto; | |
974 | new_xbridge->name = xstrdup(xbridge->name); | |
975 | xlate_xbridge_init(new_xcfg, new_xbridge); | |
976 | ||
977 | xlate_xbridge_set(new_xbridge, | |
34dd0d78 | 978 | xbridge->dpif, xbridge->ml, xbridge->stp, |
9efd308e DV |
979 | xbridge->rstp, xbridge->ms, xbridge->mbridge, |
980 | xbridge->sflow, xbridge->ipfix, xbridge->netflow, | |
b440dd8c JS |
981 | xbridge->forward_bpdu, xbridge->has_in_band, |
982 | &xbridge->support); | |
84f0f298 RW |
983 | LIST_FOR_EACH (xbundle, list_node, &xbridge->xbundles) { |
984 | xlate_xbundle_copy(new_xbridge, xbundle); | |
985 | } | |
986 | ||
987 | /* Copy xports which are not part of a xbundle */ | |
988 | HMAP_FOR_EACH (xport, ofp_node, &xbridge->xports) { | |
989 | if (!xport->xbundle) { | |
990 | xlate_xport_copy(new_xbridge, NULL, xport); | |
991 | } | |
992 | } | |
993 | } | |
994 | ||
995 | static void | |
996 | xlate_xbundle_copy(struct xbridge *xbridge, struct xbundle *xbundle) | |
997 | { | |
998 | struct xport *xport; | |
999 | struct xbundle *new_xbundle = xzalloc(sizeof *xbundle); | |
1000 | new_xbundle->ofbundle = xbundle->ofbundle; | |
1001 | new_xbundle->xbridge = xbridge; | |
1002 | new_xbundle->name = xstrdup(xbundle->name); | |
1003 | xlate_xbundle_init(new_xcfg, new_xbundle); | |
1004 | ||
fed8962a EG |
1005 | xlate_xbundle_set(new_xbundle, xbundle->vlan_mode, xbundle->qinq_ethtype, |
1006 | xbundle->vlan, xbundle->trunks, xbundle->cvlans, | |
84f0f298 | 1007 | xbundle->use_priority_tags, xbundle->bond, xbundle->lacp, |
c005f976 | 1008 | xbundle->floodable, xbundle->protected); |
84f0f298 RW |
1009 | LIST_FOR_EACH (xport, bundle_node, &xbundle->xports) { |
1010 | xlate_xport_copy(xbridge, new_xbundle, xport); | |
1011 | } | |
1012 | } | |
1013 | ||
1014 | static void | |
1015 | xlate_xport_copy(struct xbridge *xbridge, struct xbundle *xbundle, | |
1016 | struct xport *xport) | |
1017 | { | |
1018 | struct skb_priority_to_dscp *pdscp, *new_pdscp; | |
1019 | struct xport *new_xport = xzalloc(sizeof *xport); | |
1020 | new_xport->ofport = xport->ofport; | |
1021 | new_xport->ofp_port = xport->ofp_port; | |
1022 | new_xport->xbridge = xbridge; | |
ab108418 | 1023 | new_xport->uuid = xport->uuid; |
84f0f298 RW |
1024 | xlate_xport_init(new_xcfg, new_xport); |
1025 | ||
1026 | xlate_xport_set(new_xport, xport->odp_port, xport->netdev, xport->cfm, | |
0477baa9 DF |
1027 | xport->bfd, xport->lldp, xport->stp_port_no, |
1028 | xport->rstp_port, xport->config, xport->state, | |
1029 | xport->is_tunnel, xport->may_enable); | |
84f0f298 RW |
1030 | |
1031 | if (xport->peer) { | |
1032 | struct xport *peer = xport_lookup(new_xcfg, xport->peer->ofport); | |
1033 | if (peer) { | |
1034 | new_xport->peer = peer; | |
1035 | new_xport->peer->peer = new_xport; | |
1036 | } | |
1037 | } | |
1038 | ||
1039 | if (xbundle) { | |
1040 | new_xport->xbundle = xbundle; | |
417e7e66 | 1041 | ovs_list_insert(&new_xport->xbundle->xports, &new_xport->bundle_node); |
84f0f298 RW |
1042 | } |
1043 | ||
1044 | HMAP_FOR_EACH (pdscp, hmap_node, &xport->skb_priorities) { | |
1045 | new_pdscp = xmalloc(sizeof *pdscp); | |
1046 | new_pdscp->skb_priority = pdscp->skb_priority; | |
1047 | new_pdscp->dscp = pdscp->dscp; | |
1048 | hmap_insert(&new_xport->skb_priorities, &new_pdscp->hmap_node, | |
1049 | hash_int(new_pdscp->skb_priority, 0)); | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | /* Sets the current xlate configuration to new_xcfg and frees the old xlate | |
1054 | * configuration in xcfgp. | |
1055 | * | |
1056 | * This needs to be called after editing the xlate configuration. | |
1057 | * | |
1058 | * Functions that edit the new xlate configuration are | |
6cd20a22 | 1059 | * xlate_<ofproto/bundle/ofport>_set and xlate_<ofproto/bundle/ofport>_remove. |
84f0f298 RW |
1060 | * |
1061 | * A sample workflow: | |
1062 | * | |
1063 | * xlate_txn_start(); | |
1064 | * ... | |
1065 | * edit_xlate_configuration(); | |
1066 | * ... | |
1067 | * xlate_txn_commit(); */ | |
46c88433 | 1068 | void |
84f0f298 RW |
1069 | xlate_txn_commit(void) |
1070 | { | |
1071 | struct xlate_cfg *xcfg = ovsrcu_get(struct xlate_cfg *, &xcfgp); | |
1072 | ||
1073 | ovsrcu_set(&xcfgp, new_xcfg); | |
40a9c4c2 AW |
1074 | ovsrcu_synchronize(); |
1075 | xlate_xcfg_free(xcfg); | |
84f0f298 RW |
1076 | new_xcfg = NULL; |
1077 | } | |
1078 | ||
1079 | /* Copies the current xlate configuration in xcfgp to new_xcfg. | |
1080 | * | |
1081 | * This needs to be called prior to editing the xlate configuration. */ | |
1082 | void | |
1083 | xlate_txn_start(void) | |
1084 | { | |
1085 | struct xbridge *xbridge; | |
1086 | struct xlate_cfg *xcfg; | |
1087 | ||
1088 | ovs_assert(!new_xcfg); | |
1089 | ||
1090 | new_xcfg = xmalloc(sizeof *new_xcfg); | |
1091 | hmap_init(&new_xcfg->xbridges); | |
1092 | hmap_init(&new_xcfg->xbundles); | |
1093 | hmap_init(&new_xcfg->xports); | |
ab108418 | 1094 | hmap_init(&new_xcfg->xports_uuid); |
84f0f298 RW |
1095 | |
1096 | xcfg = ovsrcu_get(struct xlate_cfg *, &xcfgp); | |
1097 | if (!xcfg) { | |
1098 | return; | |
1099 | } | |
1100 | ||
1101 | HMAP_FOR_EACH (xbridge, hmap_node, &xcfg->xbridges) { | |
1102 | xlate_xbridge_copy(xbridge); | |
1103 | } | |
1104 | } | |
1105 | ||
1106 | ||
1107 | static void | |
1108 | xlate_xcfg_free(struct xlate_cfg *xcfg) | |
1109 | { | |
1110 | struct xbridge *xbridge, *next_xbridge; | |
1111 | ||
1112 | if (!xcfg) { | |
1113 | return; | |
1114 | } | |
1115 | ||
1116 | HMAP_FOR_EACH_SAFE (xbridge, next_xbridge, hmap_node, &xcfg->xbridges) { | |
1117 | xlate_xbridge_remove(xcfg, xbridge); | |
1118 | } | |
1119 | ||
1120 | hmap_destroy(&xcfg->xbridges); | |
1121 | hmap_destroy(&xcfg->xbundles); | |
1122 | hmap_destroy(&xcfg->xports); | |
ab108418 | 1123 | hmap_destroy(&xcfg->xports_uuid); |
84f0f298 RW |
1124 | free(xcfg); |
1125 | } | |
1126 | ||
1127 | void | |
1128 | xlate_ofproto_set(struct ofproto_dpif *ofproto, const char *name, | |
34dd0d78 | 1129 | struct dpif *dpif, |
84f0f298 | 1130 | const struct mac_learning *ml, struct stp *stp, |
9efd308e | 1131 | struct rstp *rstp, const struct mcast_snooping *ms, |
84f0f298 RW |
1132 | const struct mbridge *mbridge, |
1133 | const struct dpif_sflow *sflow, | |
1134 | const struct dpif_ipfix *ipfix, | |
2f47cdf4 | 1135 | const struct netflow *netflow, |
b440dd8c JS |
1136 | bool forward_bpdu, bool has_in_band, |
1137 | const struct dpif_backer_support *support) | |
84f0f298 RW |
1138 | { |
1139 | struct xbridge *xbridge; | |
1140 | ||
1141 | ovs_assert(new_xcfg); | |
1142 | ||
1143 | xbridge = xbridge_lookup(new_xcfg, ofproto); | |
1144 | if (!xbridge) { | |
1145 | xbridge = xzalloc(sizeof *xbridge); | |
1146 | xbridge->ofproto = ofproto; | |
1147 | ||
1148 | xlate_xbridge_init(new_xcfg, xbridge); | |
1149 | } | |
1150 | ||
1151 | free(xbridge->name); | |
1152 | xbridge->name = xstrdup(name); | |
1153 | ||
34dd0d78 | 1154 | xlate_xbridge_set(xbridge, dpif, ml, stp, rstp, ms, mbridge, sflow, ipfix, |
b440dd8c | 1155 | netflow, forward_bpdu, has_in_band, support); |
84f0f298 RW |
1156 | } |
1157 | ||
1158 | static void | |
1159 | xlate_xbridge_remove(struct xlate_cfg *xcfg, struct xbridge *xbridge) | |
46c88433 | 1160 | { |
46c88433 EJ |
1161 | struct xbundle *xbundle, *next_xbundle; |
1162 | struct xport *xport, *next_xport; | |
1163 | ||
1164 | if (!xbridge) { | |
1165 | return; | |
1166 | } | |
1167 | ||
1168 | HMAP_FOR_EACH_SAFE (xport, next_xport, ofp_node, &xbridge->xports) { | |
84f0f298 | 1169 | xlate_xport_remove(xcfg, xport); |
46c88433 EJ |
1170 | } |
1171 | ||
1172 | LIST_FOR_EACH_SAFE (xbundle, next_xbundle, list_node, &xbridge->xbundles) { | |
84f0f298 | 1173 | xlate_xbundle_remove(xcfg, xbundle); |
46c88433 EJ |
1174 | } |
1175 | ||
84f0f298 | 1176 | hmap_remove(&xcfg->xbridges, &xbridge->hmap_node); |
795cc5c1 | 1177 | mac_learning_unref(xbridge->ml); |
6d95c4e8 | 1178 | mcast_snooping_unref(xbridge->ms); |
795cc5c1 EJ |
1179 | mbridge_unref(xbridge->mbridge); |
1180 | dpif_sflow_unref(xbridge->sflow); | |
1181 | dpif_ipfix_unref(xbridge->ipfix); | |
3570f7e4 | 1182 | netflow_unref(xbridge->netflow); |
795cc5c1 | 1183 | stp_unref(xbridge->stp); |
9efd308e | 1184 | rstp_unref(xbridge->rstp); |
795cc5c1 | 1185 | hmap_destroy(&xbridge->xports); |
46c88433 EJ |
1186 | free(xbridge->name); |
1187 | free(xbridge); | |
1188 | } | |
1189 | ||
84f0f298 RW |
1190 | void |
1191 | xlate_remove_ofproto(struct ofproto_dpif *ofproto) | |
1192 | { | |
1193 | struct xbridge *xbridge; | |
1194 | ||
1195 | ovs_assert(new_xcfg); | |
1196 | ||
1197 | xbridge = xbridge_lookup(new_xcfg, ofproto); | |
1198 | xlate_xbridge_remove(new_xcfg, xbridge); | |
1199 | } | |
1200 | ||
46c88433 EJ |
1201 | void |
1202 | xlate_bundle_set(struct ofproto_dpif *ofproto, struct ofbundle *ofbundle, | |
f0fb825a | 1203 | const char *name, enum port_vlan_mode vlan_mode, |
fed8962a EG |
1204 | uint16_t qinq_ethtype, int vlan, |
1205 | unsigned long *trunks, unsigned long *cvlans, | |
f0fb825a | 1206 | bool use_priority_tags, |
46c88433 | 1207 | const struct bond *bond, const struct lacp *lacp, |
c005f976 | 1208 | bool floodable, bool protected) |
46c88433 | 1209 | { |
84f0f298 | 1210 | struct xbundle *xbundle; |
46c88433 | 1211 | |
84f0f298 RW |
1212 | ovs_assert(new_xcfg); |
1213 | ||
1214 | xbundle = xbundle_lookup(new_xcfg, ofbundle); | |
46c88433 EJ |
1215 | if (!xbundle) { |
1216 | xbundle = xzalloc(sizeof *xbundle); | |
1217 | xbundle->ofbundle = ofbundle; | |
84f0f298 | 1218 | xbundle->xbridge = xbridge_lookup(new_xcfg, ofproto); |
46c88433 | 1219 | |
84f0f298 | 1220 | xlate_xbundle_init(new_xcfg, xbundle); |
46c88433 EJ |
1221 | } |
1222 | ||
46c88433 EJ |
1223 | free(xbundle->name); |
1224 | xbundle->name = xstrdup(name); | |
1225 | ||
fed8962a | 1226 | xlate_xbundle_set(xbundle, vlan_mode, qinq_ethtype, vlan, trunks, cvlans, |
c005f976 | 1227 | use_priority_tags, bond, lacp, floodable, protected); |
46c88433 EJ |
1228 | } |
1229 | ||
84f0f298 RW |
1230 | static void |
1231 | xlate_xbundle_remove(struct xlate_cfg *xcfg, struct xbundle *xbundle) | |
46c88433 | 1232 | { |
5f03c983 | 1233 | struct xport *xport; |
46c88433 EJ |
1234 | |
1235 | if (!xbundle) { | |
1236 | return; | |
1237 | } | |
1238 | ||
5f03c983 | 1239 | LIST_FOR_EACH_POP (xport, bundle_node, &xbundle->xports) { |
46c88433 EJ |
1240 | xport->xbundle = NULL; |
1241 | } | |
1242 | ||
84f0f298 | 1243 | hmap_remove(&xcfg->xbundles, &xbundle->hmap_node); |
417e7e66 | 1244 | ovs_list_remove(&xbundle->list_node); |
46c88433 EJ |
1245 | bond_unref(xbundle->bond); |
1246 | lacp_unref(xbundle->lacp); | |
1247 | free(xbundle->name); | |
1248 | free(xbundle); | |
1249 | } | |
1250 | ||
84f0f298 RW |
1251 | void |
1252 | xlate_bundle_remove(struct ofbundle *ofbundle) | |
1253 | { | |
1254 | struct xbundle *xbundle; | |
1255 | ||
1256 | ovs_assert(new_xcfg); | |
1257 | ||
1258 | xbundle = xbundle_lookup(new_xcfg, ofbundle); | |
1259 | xlate_xbundle_remove(new_xcfg, xbundle); | |
1260 | } | |
1261 | ||
46c88433 EJ |
1262 | void |
1263 | xlate_ofport_set(struct ofproto_dpif *ofproto, struct ofbundle *ofbundle, | |
1264 | struct ofport_dpif *ofport, ofp_port_t ofp_port, | |
1265 | odp_port_t odp_port, const struct netdev *netdev, | |
1266 | const struct cfm *cfm, const struct bfd *bfd, | |
0477baa9 DF |
1267 | const struct lldp *lldp, struct ofport_dpif *peer, |
1268 | int stp_port_no, const struct rstp_port *rstp_port, | |
55954f6e | 1269 | const struct ofproto_port_queue *qdscp_list, size_t n_qdscp, |
dd8cd4b4 SH |
1270 | enum ofputil_port_config config, |
1271 | enum ofputil_port_state state, bool is_tunnel, | |
9d189a50 | 1272 | bool may_enable) |
46c88433 | 1273 | { |
55954f6e | 1274 | size_t i; |
84f0f298 RW |
1275 | struct xport *xport; |
1276 | ||
1277 | ovs_assert(new_xcfg); | |
46c88433 | 1278 | |
84f0f298 | 1279 | xport = xport_lookup(new_xcfg, ofport); |
46c88433 EJ |
1280 | if (!xport) { |
1281 | xport = xzalloc(sizeof *xport); | |
1282 | xport->ofport = ofport; | |
84f0f298 | 1283 | xport->xbridge = xbridge_lookup(new_xcfg, ofproto); |
46c88433 | 1284 | xport->ofp_port = ofp_port; |
ab108418 | 1285 | uuid_generate(&xport->uuid); |
46c88433 | 1286 | |
84f0f298 | 1287 | xlate_xport_init(new_xcfg, xport); |
46c88433 EJ |
1288 | } |
1289 | ||
1290 | ovs_assert(xport->ofp_port == ofp_port); | |
1291 | ||
0477baa9 DF |
1292 | xlate_xport_set(xport, odp_port, netdev, cfm, bfd, lldp, |
1293 | stp_port_no, rstp_port, config, state, is_tunnel, | |
1294 | may_enable); | |
46c88433 EJ |
1295 | |
1296 | if (xport->peer) { | |
1297 | xport->peer->peer = NULL; | |
1298 | } | |
84f0f298 | 1299 | xport->peer = xport_lookup(new_xcfg, peer); |
46c88433 EJ |
1300 | if (xport->peer) { |
1301 | xport->peer->peer = xport; | |
1302 | } | |
1303 | ||
1304 | if (xport->xbundle) { | |
417e7e66 | 1305 | ovs_list_remove(&xport->bundle_node); |
46c88433 | 1306 | } |
84f0f298 | 1307 | xport->xbundle = xbundle_lookup(new_xcfg, ofbundle); |
46c88433 | 1308 | if (xport->xbundle) { |
417e7e66 | 1309 | ovs_list_insert(&xport->xbundle->xports, &xport->bundle_node); |
46c88433 | 1310 | } |
55954f6e EJ |
1311 | |
1312 | clear_skb_priorities(xport); | |
1313 | for (i = 0; i < n_qdscp; i++) { | |
1314 | struct skb_priority_to_dscp *pdscp; | |
1315 | uint32_t skb_priority; | |
1316 | ||
89a8a7f0 EJ |
1317 | if (dpif_queue_to_priority(xport->xbridge->dpif, qdscp_list[i].queue, |
1318 | &skb_priority)) { | |
55954f6e EJ |
1319 | continue; |
1320 | } | |
1321 | ||
1322 | pdscp = xmalloc(sizeof *pdscp); | |
1323 | pdscp->skb_priority = skb_priority; | |
1324 | pdscp->dscp = (qdscp_list[i].dscp << 2) & IP_DSCP_MASK; | |
1325 | hmap_insert(&xport->skb_priorities, &pdscp->hmap_node, | |
1326 | hash_int(pdscp->skb_priority, 0)); | |
1327 | } | |
46c88433 EJ |
1328 | } |
1329 | ||
84f0f298 RW |
1330 | static void |
1331 | xlate_xport_remove(struct xlate_cfg *xcfg, struct xport *xport) | |
46c88433 | 1332 | { |
46c88433 EJ |
1333 | if (!xport) { |
1334 | return; | |
1335 | } | |
1336 | ||
1337 | if (xport->peer) { | |
1338 | xport->peer->peer = NULL; | |
1339 | xport->peer = NULL; | |
1340 | } | |
1341 | ||
e621a12d | 1342 | if (xport->xbundle) { |
417e7e66 | 1343 | ovs_list_remove(&xport->bundle_node); |
e621a12d EJ |
1344 | } |
1345 | ||
55954f6e EJ |
1346 | clear_skb_priorities(xport); |
1347 | hmap_destroy(&xport->skb_priorities); | |
1348 | ||
84f0f298 | 1349 | hmap_remove(&xcfg->xports, &xport->hmap_node); |
ab108418 | 1350 | hmap_remove(&xcfg->xports_uuid, &xport->uuid_node); |
46c88433 EJ |
1351 | hmap_remove(&xport->xbridge->xports, &xport->ofp_node); |
1352 | ||
1353 | netdev_close(xport->netdev); | |
f025bcb7 | 1354 | rstp_port_unref(xport->rstp_port); |
46c88433 EJ |
1355 | cfm_unref(xport->cfm); |
1356 | bfd_unref(xport->bfd); | |
0477baa9 | 1357 | lldp_unref(xport->lldp); |
46c88433 EJ |
1358 | free(xport); |
1359 | } | |
1360 | ||
84f0f298 RW |
1361 | void |
1362 | xlate_ofport_remove(struct ofport_dpif *ofport) | |
1363 | { | |
1364 | struct xport *xport; | |
1365 | ||
1366 | ovs_assert(new_xcfg); | |
1367 | ||
1368 | xport = xport_lookup(new_xcfg, ofport); | |
1369 | xlate_xport_remove(new_xcfg, xport); | |
1370 | } | |
1371 | ||
ef377a58 JR |
1372 | static struct ofproto_dpif * |
1373 | xlate_lookup_ofproto_(const struct dpif_backer *backer, const struct flow *flow, | |
1374 | ofp_port_t *ofp_in_port, const struct xport **xportp) | |
1375 | { | |
e672ff9b | 1376 | struct xlate_cfg *xcfg = ovsrcu_get(struct xlate_cfg *, &xcfgp); |
ef377a58 | 1377 | const struct xport *xport; |
f9038ef6 | 1378 | |
43e73536 ZB |
1379 | /* If packet is recirculated, xport can be retrieved from frozen state. */ |
1380 | if (flow->recirc_id) { | |
1381 | const struct recirc_id_node *recirc_id_node; | |
1382 | ||
1383 | recirc_id_node = recirc_id_node_find(flow->recirc_id); | |
1384 | ||
1385 | if (OVS_UNLIKELY(!recirc_id_node)) { | |
1386 | return NULL; | |
1387 | } | |
1388 | ||
1389 | /* If recirculation was initiated due to bond (in_port = OFPP_NONE) | |
1390 | * then frozen state is static and xport_uuid is not defined, so xport | |
1391 | * cannot be restored from frozen state. */ | |
1392 | if (recirc_id_node->state.metadata.in_port != OFPP_NONE) { | |
1393 | struct uuid xport_uuid = recirc_id_node->state.xport_uuid; | |
1394 | xport = xport_lookup_by_uuid(xcfg, &xport_uuid); | |
1395 | if (xport && xport->xbridge && xport->xbridge->ofproto) { | |
1396 | goto out; | |
1397 | } | |
1398 | } | |
1399 | } | |
1400 | ||
e672ff9b JR |
1401 | xport = xport_lookup(xcfg, tnl_port_should_receive(flow) |
1402 | ? tnl_port_receive(flow) | |
1403 | : odp_port_to_ofport(backer, flow->in_port.odp_port)); | |
1404 | if (OVS_UNLIKELY(!xport)) { | |
1405 | return NULL; | |
ef377a58 | 1406 | } |
43e73536 ZB |
1407 | |
1408 | out: | |
e672ff9b | 1409 | *xportp = xport; |
f9038ef6 | 1410 | if (ofp_in_port) { |
e672ff9b | 1411 | *ofp_in_port = xport->ofp_port; |
f9038ef6 | 1412 | } |
e672ff9b | 1413 | return xport->xbridge->ofproto; |
ef377a58 JR |
1414 | } |
1415 | ||
1416 | /* Given a datapath and flow metadata ('backer', and 'flow' respectively) | |
1417 | * returns the corresponding struct ofproto_dpif and OpenFlow port number. */ | |
1418 | struct ofproto_dpif * | |
1419 | xlate_lookup_ofproto(const struct dpif_backer *backer, const struct flow *flow, | |
1420 | ofp_port_t *ofp_in_port) | |
1421 | { | |
1422 | const struct xport *xport; | |
1423 | ||
1424 | return xlate_lookup_ofproto_(backer, flow, ofp_in_port, &xport); | |
1425 | } | |
1426 | ||
cc377352 | 1427 | /* Given a datapath and flow metadata ('backer', and 'flow' respectively), |
bfc691bb | 1428 | * optionally populates 'ofprotop' with the ofproto_dpif, 'ofp_in_port' with the |
cc377352 | 1429 | * openflow in_port, and 'ipfix', 'sflow', and 'netflow' with the appropriate |
dcc2c6cd JR |
1430 | * handles for those protocols if they're enabled. Caller may use the returned |
1431 | * pointers until quiescing, for longer term use additional references must | |
1432 | * be taken. | |
8449c4d6 | 1433 | * |
f9038ef6 | 1434 | * Returns 0 if successful, ENODEV if the parsed flow has no associated ofproto. |
ef377a58 | 1435 | */ |
8449c4d6 | 1436 | int |
5c476ea3 JR |
1437 | xlate_lookup(const struct dpif_backer *backer, const struct flow *flow, |
1438 | struct ofproto_dpif **ofprotop, struct dpif_ipfix **ipfix, | |
1439 | struct dpif_sflow **sflow, struct netflow **netflow, | |
1440 | ofp_port_t *ofp_in_port) | |
8449c4d6 | 1441 | { |
ef377a58 | 1442 | struct ofproto_dpif *ofproto; |
84f0f298 | 1443 | const struct xport *xport; |
8449c4d6 | 1444 | |
ef377a58 | 1445 | ofproto = xlate_lookup_ofproto_(backer, flow, ofp_in_port, &xport); |
8449c4d6 | 1446 | |
f9038ef6 | 1447 | if (!ofproto) { |
cc377352 | 1448 | return ENODEV; |
8449c4d6 | 1449 | } |
8449c4d6 | 1450 | |
ef377a58 JR |
1451 | if (ofprotop) { |
1452 | *ofprotop = ofproto; | |
8449c4d6 EJ |
1453 | } |
1454 | ||
1dfdb9b3 | 1455 | if (ipfix) { |
f9038ef6 | 1456 | *ipfix = xport ? xport->xbridge->ipfix : NULL; |
1dfdb9b3 EJ |
1457 | } |
1458 | ||
1459 | if (sflow) { | |
f9038ef6 | 1460 | *sflow = xport ? xport->xbridge->sflow : NULL; |
1dfdb9b3 EJ |
1461 | } |
1462 | ||
1463 | if (netflow) { | |
f9038ef6 | 1464 | *netflow = xport ? xport->xbridge->netflow : NULL; |
1dfdb9b3 | 1465 | } |
f9038ef6 | 1466 | |
cc377352 | 1467 | return 0; |
8449c4d6 EJ |
1468 | } |
1469 | ||
46c88433 | 1470 | static struct xbridge * |
84f0f298 | 1471 | xbridge_lookup(struct xlate_cfg *xcfg, const struct ofproto_dpif *ofproto) |
46c88433 | 1472 | { |
84f0f298 | 1473 | struct hmap *xbridges; |
46c88433 EJ |
1474 | struct xbridge *xbridge; |
1475 | ||
84f0f298 | 1476 | if (!ofproto || !xcfg) { |
5e6af486 EJ |
1477 | return NULL; |
1478 | } | |
1479 | ||
84f0f298 RW |
1480 | xbridges = &xcfg->xbridges; |
1481 | ||
46c88433 | 1482 | HMAP_FOR_EACH_IN_BUCKET (xbridge, hmap_node, hash_pointer(ofproto, 0), |
84f0f298 | 1483 | xbridges) { |
46c88433 EJ |
1484 | if (xbridge->ofproto == ofproto) { |
1485 | return xbridge; | |
1486 | } | |
1487 | } | |
1488 | return NULL; | |
1489 | } | |
1490 | ||
290835f9 BP |
1491 | static struct xbridge * |
1492 | xbridge_lookup_by_uuid(struct xlate_cfg *xcfg, const struct uuid *uuid) | |
1493 | { | |
1494 | struct xbridge *xbridge; | |
1495 | ||
1496 | HMAP_FOR_EACH (xbridge, hmap_node, &xcfg->xbridges) { | |
07a3cd5c | 1497 | if (uuid_equals(&xbridge->ofproto->uuid, uuid)) { |
290835f9 BP |
1498 | return xbridge; |
1499 | } | |
1500 | } | |
1501 | return NULL; | |
1502 | } | |
1503 | ||
46c88433 | 1504 | static struct xbundle * |
84f0f298 | 1505 | xbundle_lookup(struct xlate_cfg *xcfg, const struct ofbundle *ofbundle) |
46c88433 | 1506 | { |
84f0f298 | 1507 | struct hmap *xbundles; |
46c88433 EJ |
1508 | struct xbundle *xbundle; |
1509 | ||
84f0f298 | 1510 | if (!ofbundle || !xcfg) { |
5e6af486 EJ |
1511 | return NULL; |
1512 | } | |
1513 | ||
84f0f298 RW |
1514 | xbundles = &xcfg->xbundles; |
1515 | ||
46c88433 | 1516 | HMAP_FOR_EACH_IN_BUCKET (xbundle, hmap_node, hash_pointer(ofbundle, 0), |
84f0f298 | 1517 | xbundles) { |
46c88433 EJ |
1518 | if (xbundle->ofbundle == ofbundle) { |
1519 | return xbundle; | |
1520 | } | |
1521 | } | |
1522 | return NULL; | |
1523 | } | |
1524 | ||
1525 | static struct xport * | |
84f0f298 | 1526 | xport_lookup(struct xlate_cfg *xcfg, const struct ofport_dpif *ofport) |
46c88433 | 1527 | { |
84f0f298 | 1528 | struct hmap *xports; |
46c88433 EJ |
1529 | struct xport *xport; |
1530 | ||
84f0f298 | 1531 | if (!ofport || !xcfg) { |
5e6af486 EJ |
1532 | return NULL; |
1533 | } | |
1534 | ||
84f0f298 RW |
1535 | xports = &xcfg->xports; |
1536 | ||
46c88433 | 1537 | HMAP_FOR_EACH_IN_BUCKET (xport, hmap_node, hash_pointer(ofport, 0), |
84f0f298 | 1538 | xports) { |
46c88433 EJ |
1539 | if (xport->ofport == ofport) { |
1540 | return xport; | |
1541 | } | |
1542 | } | |
1543 | return NULL; | |
1544 | } | |
1545 | ||
43e73536 ZB |
1546 | static struct xport * |
1547 | xport_lookup_by_uuid(struct xlate_cfg *xcfg, const struct uuid *uuid) | |
1548 | { | |
1549 | struct hmap *xports; | |
1550 | struct xport *xport; | |
1551 | ||
1552 | if (uuid_is_zero(uuid) || !xcfg) { | |
1553 | return NULL; | |
1554 | } | |
1555 | ||
1556 | xports = &xcfg->xports_uuid; | |
1557 | ||
1558 | HMAP_FOR_EACH_IN_BUCKET (xport, uuid_node, uuid_hash(uuid), xports) { | |
1559 | if (uuid_equals(&xport->uuid, uuid)) { | |
1560 | return xport; | |
1561 | } | |
1562 | } | |
1563 | return NULL; | |
1564 | } | |
1565 | ||
40085e56 EJ |
1566 | static struct stp_port * |
1567 | xport_get_stp_port(const struct xport *xport) | |
1568 | { | |
92cf817b | 1569 | return xport->xbridge->stp && xport->stp_port_no != -1 |
40085e56 EJ |
1570 | ? stp_get_port(xport->xbridge->stp, xport->stp_port_no) |
1571 | : NULL; | |
1572 | } | |
9d189a50 | 1573 | |
0d1cee12 | 1574 | static bool |
9d189a50 EJ |
1575 | xport_stp_learn_state(const struct xport *xport) |
1576 | { | |
40085e56 | 1577 | struct stp_port *sp = xport_get_stp_port(xport); |
4b5f1996 DV |
1578 | return sp |
1579 | ? stp_learn_in_state(stp_port_get_state(sp)) | |
1580 | : true; | |
9d189a50 EJ |
1581 | } |
1582 | ||
1583 | static bool | |
1584 | xport_stp_forward_state(const struct xport *xport) | |
1585 | { | |
40085e56 | 1586 | struct stp_port *sp = xport_get_stp_port(xport); |
4b5f1996 DV |
1587 | return sp |
1588 | ? stp_forward_in_state(stp_port_get_state(sp)) | |
1589 | : true; | |
9d189a50 EJ |
1590 | } |
1591 | ||
0d1cee12 | 1592 | static bool |
bacdb85a | 1593 | xport_stp_should_forward_bpdu(const struct xport *xport) |
0d1cee12 K |
1594 | { |
1595 | struct stp_port *sp = xport_get_stp_port(xport); | |
bacdb85a | 1596 | return stp_should_forward_bpdu(sp ? stp_port_get_state(sp) : STP_DISABLED); |
0d1cee12 K |
1597 | } |
1598 | ||
9d189a50 EJ |
1599 | /* Returns true if STP should process 'flow'. Sets fields in 'wc' that |
1600 | * were used to make the determination.*/ | |
1601 | static bool | |
1602 | stp_should_process_flow(const struct flow *flow, struct flow_wildcards *wc) | |
1603 | { | |
bbbca389 | 1604 | /* is_stp() also checks dl_type, but dl_type is always set in 'wc'. */ |
9d189a50 | 1605 | memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst); |
bbbca389 | 1606 | return is_stp(flow); |
9d189a50 EJ |
1607 | } |
1608 | ||
1609 | static void | |
cf62fa4c | 1610 | stp_process_packet(const struct xport *xport, const struct dp_packet *packet) |
9d189a50 | 1611 | { |
40085e56 | 1612 | struct stp_port *sp = xport_get_stp_port(xport); |
cf62fa4c PS |
1613 | struct dp_packet payload = *packet; |
1614 | struct eth_header *eth = dp_packet_data(&payload); | |
9d189a50 EJ |
1615 | |
1616 | /* Sink packets on ports that have STP disabled when the bridge has | |
1617 | * STP enabled. */ | |
1618 | if (!sp || stp_port_get_state(sp) == STP_DISABLED) { | |
1619 | return; | |
1620 | } | |
1621 | ||
1622 | /* Trim off padding on payload. */ | |
cf62fa4c PS |
1623 | if (dp_packet_size(&payload) > ntohs(eth->eth_type) + ETH_HEADER_LEN) { |
1624 | dp_packet_set_size(&payload, ntohs(eth->eth_type) + ETH_HEADER_LEN); | |
9d189a50 EJ |
1625 | } |
1626 | ||
cf62fa4c PS |
1627 | if (dp_packet_try_pull(&payload, ETH_HEADER_LEN + LLC_HEADER_LEN)) { |
1628 | stp_received_bpdu(sp, dp_packet_data(&payload), dp_packet_size(&payload)); | |
9d189a50 EJ |
1629 | } |
1630 | } | |
1631 | ||
f025bcb7 JR |
1632 | static enum rstp_state |
1633 | xport_get_rstp_port_state(const struct xport *xport) | |
9efd308e | 1634 | { |
f025bcb7 JR |
1635 | return xport->rstp_port |
1636 | ? rstp_port_get_state(xport->rstp_port) | |
1637 | : RSTP_DISABLED; | |
9efd308e DV |
1638 | } |
1639 | ||
1640 | static bool | |
1641 | xport_rstp_learn_state(const struct xport *xport) | |
1642 | { | |
4b5f1996 DV |
1643 | return xport->xbridge->rstp && xport->rstp_port |
1644 | ? rstp_learn_in_state(xport_get_rstp_port_state(xport)) | |
1645 | : true; | |
9efd308e DV |
1646 | } |
1647 | ||
1648 | static bool | |
1649 | xport_rstp_forward_state(const struct xport *xport) | |
1650 | { | |
4b5f1996 DV |
1651 | return xport->xbridge->rstp && xport->rstp_port |
1652 | ? rstp_forward_in_state(xport_get_rstp_port_state(xport)) | |
1653 | : true; | |
9efd308e DV |
1654 | } |
1655 | ||
1656 | static bool | |
1657 | xport_rstp_should_manage_bpdu(const struct xport *xport) | |
1658 | { | |
f025bcb7 | 1659 | return rstp_should_manage_bpdu(xport_get_rstp_port_state(xport)); |
9efd308e DV |
1660 | } |
1661 | ||
1662 | static void | |
cf62fa4c | 1663 | rstp_process_packet(const struct xport *xport, const struct dp_packet *packet) |
9efd308e | 1664 | { |
cf62fa4c PS |
1665 | struct dp_packet payload = *packet; |
1666 | struct eth_header *eth = dp_packet_data(&payload); | |
9efd308e | 1667 | |
f025bcb7 JR |
1668 | /* Sink packets on ports that have no RSTP. */ |
1669 | if (!xport->rstp_port) { | |
9efd308e DV |
1670 | return; |
1671 | } | |
1672 | ||
1673 | /* Trim off padding on payload. */ | |
cf62fa4c PS |
1674 | if (dp_packet_size(&payload) > ntohs(eth->eth_type) + ETH_HEADER_LEN) { |
1675 | dp_packet_set_size(&payload, ntohs(eth->eth_type) + ETH_HEADER_LEN); | |
9efd308e DV |
1676 | } |
1677 | ||
cf62fa4c PS |
1678 | if (dp_packet_try_pull(&payload, ETH_HEADER_LEN + LLC_HEADER_LEN)) { |
1679 | rstp_port_received_bpdu(xport->rstp_port, dp_packet_data(&payload), | |
1680 | dp_packet_size(&payload)); | |
9efd308e DV |
1681 | } |
1682 | } | |
1683 | ||
46c88433 EJ |
1684 | static struct xport * |
1685 | get_ofp_port(const struct xbridge *xbridge, ofp_port_t ofp_port) | |
1686 | { | |
1687 | struct xport *xport; | |
1688 | ||
1689 | HMAP_FOR_EACH_IN_BUCKET (xport, ofp_node, hash_ofp_port(ofp_port), | |
1690 | &xbridge->xports) { | |
1691 | if (xport->ofp_port == ofp_port) { | |
1692 | return xport; | |
1693 | } | |
1694 | } | |
1695 | return NULL; | |
1696 | } | |
1697 | ||
1698 | static odp_port_t | |
1699 | ofp_port_to_odp_port(const struct xbridge *xbridge, ofp_port_t ofp_port) | |
1700 | { | |
1701 | const struct xport *xport = get_ofp_port(xbridge, ofp_port); | |
1702 | return xport ? xport->odp_port : ODPP_NONE; | |
1703 | } | |
1704 | ||
dd8cd4b4 SH |
1705 | static bool |
1706 | odp_port_is_alive(const struct xlate_ctx *ctx, ofp_port_t ofp_port) | |
1707 | { | |
086fa873 BP |
1708 | struct xport *xport = get_ofp_port(ctx->xbridge, ofp_port); |
1709 | return xport && xport->may_enable; | |
dd8cd4b4 SH |
1710 | } |
1711 | ||
1e684d7d | 1712 | static struct ofputil_bucket * |
dd8cd4b4 SH |
1713 | group_first_live_bucket(const struct xlate_ctx *, const struct group_dpif *, |
1714 | int depth); | |
1715 | ||
1716 | static bool | |
1717 | group_is_alive(const struct xlate_ctx *ctx, uint32_t group_id, int depth) | |
1718 | { | |
1719 | struct group_dpif *group; | |
dd8cd4b4 | 1720 | |
5d08a275 | 1721 | group = group_dpif_lookup(ctx->xbridge->ofproto, group_id, |
1f4a8933 | 1722 | ctx->xin->tables_version, false); |
db88b35c | 1723 | if (group) { |
76973237 | 1724 | return group_first_live_bucket(ctx, group, depth) != NULL; |
dc25893e | 1725 | } |
dd8cd4b4 | 1726 | |
dc25893e | 1727 | return false; |
dd8cd4b4 SH |
1728 | } |
1729 | ||
1730 | #define MAX_LIVENESS_RECURSION 128 /* Arbitrary limit */ | |
1731 | ||
1732 | static bool | |
1733 | bucket_is_alive(const struct xlate_ctx *ctx, | |
1e684d7d | 1734 | struct ofputil_bucket *bucket, int depth) |
dd8cd4b4 SH |
1735 | { |
1736 | if (depth >= MAX_LIVENESS_RECURSION) { | |
2d9b49dd BP |
1737 | xlate_report_error(ctx, "bucket chaining exceeded %d links", |
1738 | MAX_LIVENESS_RECURSION); | |
dd8cd4b4 SH |
1739 | return false; |
1740 | } | |
1741 | ||
fdb1999b AZ |
1742 | return (!ofputil_bucket_has_liveness(bucket) |
1743 | || (bucket->watch_port != OFPP_ANY | |
1744 | && odp_port_is_alive(ctx, bucket->watch_port)) | |
1745 | || (bucket->watch_group != OFPG_ANY | |
1746 | && group_is_alive(ctx, bucket->watch_group, depth + 1))); | |
dd8cd4b4 SH |
1747 | } |
1748 | ||
1e684d7d | 1749 | static struct ofputil_bucket * |
dd8cd4b4 SH |
1750 | group_first_live_bucket(const struct xlate_ctx *ctx, |
1751 | const struct group_dpif *group, int depth) | |
1752 | { | |
1753 | struct ofputil_bucket *bucket; | |
07a3cd5c | 1754 | LIST_FOR_EACH (bucket, list_node, &group->up.buckets) { |
dd8cd4b4 SH |
1755 | if (bucket_is_alive(ctx, bucket, depth)) { |
1756 | return bucket; | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | return NULL; | |
1761 | } | |
1762 | ||
1e684d7d | 1763 | static struct ofputil_bucket * |
fe7e5749 SH |
1764 | group_best_live_bucket(const struct xlate_ctx *ctx, |
1765 | const struct group_dpif *group, | |
1766 | uint32_t basis) | |
1767 | { | |
1e684d7d | 1768 | struct ofputil_bucket *best_bucket = NULL; |
fe7e5749 | 1769 | uint32_t best_score = 0; |
fe7e5749 | 1770 | |
1e684d7d | 1771 | struct ofputil_bucket *bucket; |
07a3cd5c | 1772 | LIST_FOR_EACH (bucket, list_node, &group->up.buckets) { |
fe7e5749 | 1773 | if (bucket_is_alive(ctx, bucket, 0)) { |
c09cb861 LS |
1774 | uint32_t score = |
1775 | (hash_int(bucket->bucket_id, basis) & 0xffff) * bucket->weight; | |
fe7e5749 SH |
1776 | if (score >= best_score) { |
1777 | best_bucket = bucket; | |
1778 | best_score = score; | |
1779 | } | |
1780 | } | |
fe7e5749 SH |
1781 | } |
1782 | ||
1783 | return best_bucket; | |
1784 | } | |
1785 | ||
9583bc14 | 1786 | static bool |
46c88433 | 1787 | xbundle_trunks_vlan(const struct xbundle *bundle, uint16_t vlan) |
9583bc14 EJ |
1788 | { |
1789 | return (bundle->vlan_mode != PORT_VLAN_ACCESS | |
1790 | && (!bundle->trunks || bitmap_is_set(bundle->trunks, vlan))); | |
1791 | } | |
1792 | ||
fed8962a EG |
1793 | static bool |
1794 | xbundle_allows_cvlan(const struct xbundle *bundle, uint16_t vlan) | |
1795 | { | |
1796 | return (!bundle->cvlans || bitmap_is_set(bundle->cvlans, vlan)); | |
1797 | } | |
1798 | ||
9583bc14 | 1799 | static bool |
f0fb825a | 1800 | xbundle_includes_vlan(const struct xbundle *xbundle, const struct xvlan *xvlan) |
46c88433 | 1801 | { |
f0fb825a EG |
1802 | switch (xbundle->vlan_mode) { |
1803 | case PORT_VLAN_ACCESS: | |
1804 | return xvlan->v[0].vid == xbundle->vlan && xvlan->v[1].vid == 0; | |
1805 | ||
1806 | case PORT_VLAN_TRUNK: | |
1807 | case PORT_VLAN_NATIVE_UNTAGGED: | |
1808 | case PORT_VLAN_NATIVE_TAGGED: | |
1809 | return xbundle_trunks_vlan(xbundle, xvlan->v[0].vid); | |
1810 | ||
fed8962a EG |
1811 | case PORT_VLAN_DOT1Q_TUNNEL: |
1812 | return xvlan->v[0].vid == xbundle->vlan && | |
1813 | xbundle_allows_cvlan(xbundle, xvlan->v[1].vid); | |
1814 | ||
f0fb825a EG |
1815 | default: |
1816 | OVS_NOT_REACHED(); | |
1817 | } | |
46c88433 EJ |
1818 | } |
1819 | ||
1820 | static mirror_mask_t | |
1821 | xbundle_mirror_out(const struct xbridge *xbridge, struct xbundle *xbundle) | |
1822 | { | |
1823 | return xbundle != &ofpp_none_bundle | |
1824 | ? mirror_bundle_out(xbridge->mbridge, xbundle->ofbundle) | |
1825 | : 0; | |
1826 | } | |
1827 | ||
1828 | static mirror_mask_t | |
1829 | xbundle_mirror_src(const struct xbridge *xbridge, struct xbundle *xbundle) | |
9583bc14 | 1830 | { |
46c88433 EJ |
1831 | return xbundle != &ofpp_none_bundle |
1832 | ? mirror_bundle_src(xbridge->mbridge, xbundle->ofbundle) | |
1833 | : 0; | |
9583bc14 EJ |
1834 | } |
1835 | ||
46c88433 EJ |
1836 | static mirror_mask_t |
1837 | xbundle_mirror_dst(const struct xbridge *xbridge, struct xbundle *xbundle) | |
9583bc14 | 1838 | { |
46c88433 EJ |
1839 | return xbundle != &ofpp_none_bundle |
1840 | ? mirror_bundle_dst(xbridge->mbridge, xbundle->ofbundle) | |
1841 | : 0; | |
1842 | } | |
1843 | ||
1844 | static struct xbundle * | |
2d9b49dd BP |
1845 | lookup_input_bundle__(const struct xbridge *xbridge, |
1846 | ofp_port_t in_port, struct xport **in_xportp) | |
46c88433 EJ |
1847 | { |
1848 | struct xport *xport; | |
9583bc14 EJ |
1849 | |
1850 | /* Find the port and bundle for the received packet. */ | |
46c88433 EJ |
1851 | xport = get_ofp_port(xbridge, in_port); |
1852 | if (in_xportp) { | |
1853 | *in_xportp = xport; | |
9583bc14 | 1854 | } |
46c88433 EJ |
1855 | if (xport && xport->xbundle) { |
1856 | return xport->xbundle; | |
9583bc14 EJ |
1857 | } |
1858 | ||
6362203b YT |
1859 | /* Special-case OFPP_NONE (OF1.0) and OFPP_CONTROLLER (OF1.1+), |
1860 | * which a controller may use as the ingress port for traffic that | |
1861 | * it is sourcing. */ | |
1862 | if (in_port == OFPP_CONTROLLER || in_port == OFPP_NONE) { | |
9583bc14 EJ |
1863 | return &ofpp_none_bundle; |
1864 | } | |
2d9b49dd BP |
1865 | return NULL; |
1866 | } | |
9583bc14 | 1867 | |
2d9b49dd BP |
1868 | static struct xbundle * |
1869 | lookup_input_bundle(const struct xlate_ctx *ctx, | |
1870 | ofp_port_t in_port, struct xport **in_xportp) | |
1871 | { | |
1872 | struct xbundle *xbundle = lookup_input_bundle__(ctx->xbridge, | |
1873 | in_port, in_xportp); | |
1874 | if (!xbundle) { | |
1875 | /* Odd. A few possible reasons here: | |
1876 | * | |
1877 | * - We deleted a port but there are still a few packets queued up | |
1878 | * from it. | |
1879 | * | |
1880 | * - Someone externally added a port (e.g. "ovs-dpctl add-if") that | |
1881 | * we don't know about. | |
1882 | * | |
1883 | * - The ofproto client didn't configure the port as part of a bundle. | |
1884 | * This is particularly likely to happen if a packet was received on | |
1885 | * the port after it was created, but before the client had a chance | |
1886 | * to configure its bundle. | |
1887 | */ | |
94783c7c | 1888 | xlate_report_error(ctx, "received packet on unknown port %"PRIu32, |
2d9b49dd | 1889 | in_port); |
9583bc14 | 1890 | } |
2d9b49dd | 1891 | return xbundle; |
9583bc14 EJ |
1892 | } |
1893 | ||
faa624b4 BP |
1894 | /* Mirrors the packet represented by 'ctx' to appropriate mirror destinations, |
1895 | * given the packet is ingressing or egressing on 'xbundle', which has ingress | |
1896 | * or egress (as appropriate) mirrors 'mirrors'. */ | |
9583bc14 | 1897 | static void |
7efbc3b7 BP |
1898 | mirror_packet(struct xlate_ctx *ctx, struct xbundle *xbundle, |
1899 | mirror_mask_t mirrors) | |
9583bc14 | 1900 | { |
f0fb825a EG |
1901 | struct xvlan in_xvlan; |
1902 | struct xvlan xvlan; | |
1903 | ||
faa624b4 BP |
1904 | /* Figure out what VLAN the packet is in (because mirrors can select |
1905 | * packets on basis of VLAN). */ | |
f0fb825a EG |
1906 | xvlan_extract(&ctx->xin->flow, &in_xvlan); |
1907 | if (!input_vid_is_valid(ctx, in_xvlan.v[0].vid, xbundle)) { | |
9583bc14 EJ |
1908 | return; |
1909 | } | |
f0fb825a | 1910 | xvlan_input_translate(xbundle, &in_xvlan, &xvlan); |
9583bc14 | 1911 | |
7efbc3b7 | 1912 | const struct xbridge *xbridge = ctx->xbridge; |
9583bc14 | 1913 | |
7efbc3b7 BP |
1914 | /* Don't mirror to destinations that we've already mirrored to. */ |
1915 | mirrors &= ~ctx->mirrors; | |
9583bc14 EJ |
1916 | if (!mirrors) { |
1917 | return; | |
1918 | } | |
1919 | ||
7efbc3b7 BP |
1920 | if (ctx->xin->resubmit_stats) { |
1921 | mirror_update_stats(xbridge->mbridge, mirrors, | |
1922 | ctx->xin->resubmit_stats->n_packets, | |
1923 | ctx->xin->resubmit_stats->n_bytes); | |
1924 | } | |
1925 | if (ctx->xin->xcache) { | |
1926 | struct xc_entry *entry; | |
1927 | ||
1928 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_MIRROR); | |
901a517e JR |
1929 | entry->mirror.mbridge = mbridge_ref(xbridge->mbridge); |
1930 | entry->mirror.mirrors = mirrors; | |
7efbc3b7 | 1931 | } |
9583bc14 | 1932 | |
faa624b4 BP |
1933 | /* 'mirrors' is a bit-mask of candidates for mirroring. Iterate as long as |
1934 | * some candidates remain. */ | |
9583bc14 | 1935 | while (mirrors) { |
7efbc3b7 | 1936 | const unsigned long *vlans; |
ec7ceaed EJ |
1937 | mirror_mask_t dup_mirrors; |
1938 | struct ofbundle *out; | |
ec7ceaed | 1939 | int out_vlan; |
1356dbd1 | 1940 | int snaplen; |
ec7ceaed | 1941 | |
faa624b4 | 1942 | /* Get the details of the mirror represented by the rightmost 1-bit. */ |
7efbc3b7 | 1943 | bool has_mirror = mirror_get(xbridge->mbridge, raw_ctz(mirrors), |
1356dbd1 WT |
1944 | &vlans, &dup_mirrors, |
1945 | &out, &snaplen, &out_vlan); | |
ec7ceaed EJ |
1946 | ovs_assert(has_mirror); |
1947 | ||
1356dbd1 | 1948 | |
faa624b4 BP |
1949 | /* If this mirror selects on the basis of VLAN, and it does not select |
1950 | * 'vlan', then discard this mirror and go on to the next one. */ | |
ec7ceaed | 1951 | if (vlans) { |
f0fb825a | 1952 | ctx->wc->masks.vlans[0].tci |= htons(VLAN_CFI | VLAN_VID_MASK); |
9583bc14 | 1953 | } |
f0fb825a | 1954 | if (vlans && !bitmap_is_set(vlans, xvlan.v[0].vid)) { |
9583bc14 EJ |
1955 | mirrors = zero_rightmost_1bit(mirrors); |
1956 | continue; | |
1957 | } | |
1958 | ||
faa624b4 BP |
1959 | /* Record the mirror, and the mirrors that output to the same |
1960 | * destination, so that we don't mirror to them again. This must be | |
1961 | * done now to ensure that output_normal(), below, doesn't recursively | |
1962 | * output to the same mirrors. */ | |
3d6151f3 | 1963 | ctx->mirrors |= dup_mirrors; |
1356dbd1 | 1964 | ctx->mirror_snaplen = snaplen; |
faa624b4 BP |
1965 | |
1966 | /* Send the packet to the mirror. */ | |
ec7ceaed | 1967 | if (out) { |
68f515ca | 1968 | struct xbundle *out_xbundle = xbundle_lookup(ctx->xcfg, out); |
46c88433 | 1969 | if (out_xbundle) { |
f0fb825a | 1970 | output_normal(ctx, out_xbundle, &xvlan); |
46c88433 | 1971 | } |
f0fb825a | 1972 | } else if (xvlan.v[0].vid != out_vlan |
7efbc3b7 | 1973 | && !eth_addr_is_reserved(ctx->xin->flow.dl_dst)) { |
71f21279 | 1974 | struct xbundle *xb; |
f0fb825a | 1975 | uint16_t old_vid = xvlan.v[0].vid; |
9583bc14 | 1976 | |
f0fb825a | 1977 | xvlan.v[0].vid = out_vlan; |
71f21279 BP |
1978 | LIST_FOR_EACH (xb, list_node, &xbridge->xbundles) { |
1979 | if (xbundle_includes_vlan(xb, &xvlan) | |
1980 | && !xbundle_mirror_out(xbridge, xb)) { | |
1981 | output_normal(ctx, xb, &xvlan); | |
9583bc14 EJ |
1982 | } |
1983 | } | |
f0fb825a | 1984 | xvlan.v[0].vid = old_vid; |
9583bc14 | 1985 | } |
faa624b4 BP |
1986 | |
1987 | /* output_normal() could have recursively output (to different | |
1988 | * mirrors), so make sure that we don't send duplicates. */ | |
1989 | mirrors &= ~ctx->mirrors; | |
1356dbd1 | 1990 | ctx->mirror_snaplen = 0; |
9583bc14 EJ |
1991 | } |
1992 | } | |
1993 | ||
7efbc3b7 BP |
1994 | static void |
1995 | mirror_ingress_packet(struct xlate_ctx *ctx) | |
1996 | { | |
1997 | if (mbridge_has_mirrors(ctx->xbridge->mbridge)) { | |
7efbc3b7 | 1998 | struct xbundle *xbundle = lookup_input_bundle( |
2d9b49dd | 1999 | ctx, ctx->xin->flow.in_port.ofp_port, NULL); |
7efbc3b7 BP |
2000 | if (xbundle) { |
2001 | mirror_packet(ctx, xbundle, | |
2002 | xbundle_mirror_src(ctx->xbridge, xbundle)); | |
2003 | } | |
2004 | } | |
2005 | } | |
2006 | ||
46c88433 | 2007 | /* Checks whether a packet with the given 'vid' may ingress on 'in_xbundle'. |
2d9b49dd | 2008 | * If so, returns true. Otherwise, returns false. |
9583bc14 EJ |
2009 | * |
2010 | * 'vid' should be the VID obtained from the 802.1Q header that was received as | |
2011 | * part of a packet (specify 0 if there was no 802.1Q header), in the range | |
2012 | * 0...4095. */ | |
2013 | static bool | |
2d9b49dd BP |
2014 | input_vid_is_valid(const struct xlate_ctx *ctx, |
2015 | uint16_t vid, struct xbundle *in_xbundle) | |
9583bc14 EJ |
2016 | { |
2017 | /* Allow any VID on the OFPP_NONE port. */ | |
46c88433 | 2018 | if (in_xbundle == &ofpp_none_bundle) { |
9583bc14 EJ |
2019 | return true; |
2020 | } | |
2021 | ||
46c88433 | 2022 | switch (in_xbundle->vlan_mode) { |
9583bc14 EJ |
2023 | case PORT_VLAN_ACCESS: |
2024 | if (vid) { | |
2d9b49dd BP |
2025 | xlate_report_error(ctx, "dropping VLAN %"PRIu16" tagged " |
2026 | "packet received on port %s configured as VLAN " | |
fd13c6b5 | 2027 | "%d access port", vid, in_xbundle->name, |
2d9b49dd | 2028 | in_xbundle->vlan); |
9583bc14 EJ |
2029 | return false; |
2030 | } | |
2031 | return true; | |
2032 | ||
2033 | case PORT_VLAN_NATIVE_UNTAGGED: | |
2034 | case PORT_VLAN_NATIVE_TAGGED: | |
2035 | if (!vid) { | |
2036 | /* Port must always carry its native VLAN. */ | |
2037 | return true; | |
2038 | } | |
2039 | /* Fall through. */ | |
2040 | case PORT_VLAN_TRUNK: | |
f0fb825a | 2041 | if (!xbundle_trunks_vlan(in_xbundle, vid)) { |
2d9b49dd BP |
2042 | xlate_report_error(ctx, "dropping VLAN %"PRIu16" packet " |
2043 | "received on port %s not configured for " | |
2044 | "trunking VLAN %"PRIu16, | |
2045 | vid, in_xbundle->name, vid); | |
9583bc14 EJ |
2046 | return false; |
2047 | } | |
2048 | return true; | |
2049 | ||
fed8962a EG |
2050 | case PORT_VLAN_DOT1Q_TUNNEL: |
2051 | if (!xbundle_allows_cvlan(in_xbundle, vid)) { | |
2052 | xlate_report_error(ctx, "dropping VLAN %"PRIu16" packet received " | |
2053 | "on dot1q-tunnel port %s that excludes this " | |
2054 | "VLAN", vid, in_xbundle->name); | |
2055 | return false; | |
2056 | } | |
2057 | return true; | |
2058 | ||
9583bc14 | 2059 | default: |
428b2edd | 2060 | OVS_NOT_REACHED(); |
9583bc14 EJ |
2061 | } |
2062 | ||
2063 | } | |
2064 | ||
f0fb825a EG |
2065 | static void |
2066 | xvlan_copy(struct xvlan *dst, const struct xvlan *src) | |
2067 | { | |
2068 | *dst = *src; | |
2069 | } | |
2070 | ||
2071 | static void | |
2072 | xvlan_pop(struct xvlan *src) | |
2073 | { | |
2074 | memmove(&src->v[0], &src->v[1], sizeof(src->v) - sizeof(src->v[0])); | |
2075 | memset(&src->v[FLOW_MAX_VLAN_HEADERS - 1], 0, | |
2076 | sizeof(src->v[FLOW_MAX_VLAN_HEADERS - 1])); | |
2077 | } | |
2078 | ||
fed8962a EG |
2079 | static void |
2080 | xvlan_push_uninit(struct xvlan *src) | |
2081 | { | |
2082 | memmove(&src->v[1], &src->v[0], sizeof(src->v) - sizeof(src->v[0])); | |
2083 | memset(&src->v[0], 0, sizeof(src->v[0])); | |
2084 | } | |
2085 | ||
f0fb825a EG |
2086 | /* Extract VLAN information (headers) from flow */ |
2087 | static void | |
2088 | xvlan_extract(const struct flow *flow, struct xvlan *xvlan) | |
2089 | { | |
2090 | int i; | |
2091 | memset(xvlan, 0, sizeof(*xvlan)); | |
2092 | for (i = 0; i < FLOW_MAX_VLAN_HEADERS; i++) { | |
2093 | if (!eth_type_vlan(flow->vlans[i].tpid) || | |
2094 | !(flow->vlans[i].tci & htons(VLAN_CFI))) { | |
2095 | break; | |
2096 | } | |
2097 | xvlan->v[i].tpid = ntohs(flow->vlans[i].tpid); | |
2098 | xvlan->v[i].vid = vlan_tci_to_vid(flow->vlans[i].tci); | |
2099 | xvlan->v[i].pcp = ntohs(flow->vlans[i].tci) & VLAN_PCP_MASK; | |
2100 | } | |
2101 | } | |
2102 | ||
2103 | /* Put VLAN information (headers) to flow */ | |
2104 | static void | |
2105 | xvlan_put(struct flow *flow, const struct xvlan *xvlan) | |
2106 | { | |
2107 | ovs_be16 tci; | |
2108 | int i; | |
2109 | for (i = 0; i < FLOW_MAX_VLAN_HEADERS; i++) { | |
2110 | tci = htons(xvlan->v[i].vid | (xvlan->v[i].pcp & VLAN_PCP_MASK)); | |
2111 | if (tci) { | |
2112 | tci |= htons(VLAN_CFI); | |
2113 | flow->vlans[i].tpid = xvlan->v[i].tpid ? | |
2114 | htons(xvlan->v[i].tpid) : | |
2115 | htons(ETH_TYPE_VLAN_8021Q); | |
2116 | } | |
2117 | flow->vlans[i].tci = tci; | |
2118 | } | |
2119 | } | |
2120 | ||
2121 | /* Given 'in_xvlan', extracted from the input 802.1Q headers received as part | |
2122 | * of a packet, and 'in_xbundle', the bundle on which the packet was received, | |
2123 | * returns the VLANs of the packet during bridge internal processing. */ | |
2124 | static void | |
2125 | xvlan_input_translate(const struct xbundle *in_xbundle, | |
2126 | const struct xvlan *in_xvlan, struct xvlan *xvlan) | |
2127 | { | |
2128 | ||
2129 | switch (in_xbundle->vlan_mode) { | |
2130 | case PORT_VLAN_ACCESS: | |
2131 | memset(xvlan, 0, sizeof(*xvlan)); | |
2132 | xvlan->v[0].tpid = in_xvlan->v[0].tpid ? in_xvlan->v[0].tpid : | |
2133 | ETH_TYPE_VLAN_8021Q; | |
2134 | xvlan->v[0].vid = in_xbundle->vlan; | |
2135 | xvlan->v[0].pcp = in_xvlan->v[0].pcp; | |
2136 | break; | |
2137 | ||
2138 | case PORT_VLAN_TRUNK: | |
2139 | xvlan_copy(xvlan, in_xvlan); | |
2140 | break; | |
2141 | ||
2142 | case PORT_VLAN_NATIVE_UNTAGGED: | |
2143 | case PORT_VLAN_NATIVE_TAGGED: | |
2144 | xvlan_copy(xvlan, in_xvlan); | |
2145 | if (!in_xvlan->v[0].vid) { | |
2146 | xvlan->v[0].tpid = in_xvlan->v[0].tpid ? in_xvlan->v[0].tpid : | |
2147 | ETH_TYPE_VLAN_8021Q; | |
2148 | xvlan->v[0].vid = in_xbundle->vlan; | |
2149 | xvlan->v[0].pcp = in_xvlan->v[0].pcp; | |
2150 | } | |
2151 | break; | |
2152 | ||
fed8962a EG |
2153 | case PORT_VLAN_DOT1Q_TUNNEL: |
2154 | xvlan_copy(xvlan, in_xvlan); | |
2155 | xvlan_push_uninit(xvlan); | |
2156 | xvlan->v[0].tpid = in_xbundle->qinq_ethtype; | |
2157 | xvlan->v[0].vid = in_xbundle->vlan; | |
2158 | xvlan->v[0].pcp = 0; | |
2159 | break; | |
2160 | ||
f0fb825a EG |
2161 | default: |
2162 | OVS_NOT_REACHED(); | |
2163 | } | |
2164 | } | |
2165 | ||
2166 | /* Given 'xvlan', the VLANs of a packet during internal processing, and | |
2167 | * 'out_xbundle', a bundle on which the packet is to be output, returns the | |
2168 | * VLANs that should be included in output packet. */ | |
2169 | static void | |
2170 | xvlan_output_translate(const struct xbundle *out_xbundle, | |
2171 | const struct xvlan *xvlan, struct xvlan *out_xvlan) | |
9583bc14 | 2172 | { |
46c88433 | 2173 | switch (out_xbundle->vlan_mode) { |
9583bc14 | 2174 | case PORT_VLAN_ACCESS: |
f0fb825a EG |
2175 | memset(out_xvlan, 0, sizeof(*out_xvlan)); |
2176 | break; | |
9583bc14 EJ |
2177 | |
2178 | case PORT_VLAN_TRUNK: | |
2179 | case PORT_VLAN_NATIVE_TAGGED: | |
f0fb825a EG |
2180 | xvlan_copy(out_xvlan, xvlan); |
2181 | break; | |
9583bc14 EJ |
2182 | |
2183 | case PORT_VLAN_NATIVE_UNTAGGED: | |
f0fb825a EG |
2184 | xvlan_copy(out_xvlan, xvlan); |
2185 | if (xvlan->v[0].vid == out_xbundle->vlan) { | |
2186 | xvlan_pop(out_xvlan); | |
2187 | } | |
2188 | break; | |
9583bc14 | 2189 | |
fed8962a EG |
2190 | case PORT_VLAN_DOT1Q_TUNNEL: |
2191 | xvlan_copy(out_xvlan, xvlan); | |
2192 | xvlan_pop(out_xvlan); | |
2193 | break; | |
2194 | ||
9583bc14 | 2195 | default: |
428b2edd | 2196 | OVS_NOT_REACHED(); |
9583bc14 EJ |
2197 | } |
2198 | } | |
2199 | ||
fed8962a EG |
2200 | /* If output xbundle is dot1q-tunnel, set mask bits of cvlan */ |
2201 | static void | |
2202 | check_and_set_cvlan_mask(struct flow_wildcards *wc, | |
2203 | const struct xbundle *xbundle) | |
2204 | { | |
2205 | if (xbundle->vlan_mode == PORT_VLAN_DOT1Q_TUNNEL && xbundle->cvlans) { | |
2206 | wc->masks.vlans[1].tci = htons(0xffff); | |
2207 | } | |
2208 | } | |
2209 | ||
9583bc14 | 2210 | static void |
46c88433 | 2211 | output_normal(struct xlate_ctx *ctx, const struct xbundle *out_xbundle, |
f0fb825a | 2212 | const struct xvlan *xvlan) |
9583bc14 | 2213 | { |
9583bc14 | 2214 | uint16_t vid; |
f0fb825a | 2215 | union flow_vlan_hdr old_vlans[FLOW_MAX_VLAN_HEADERS]; |
46c88433 | 2216 | struct xport *xport; |
e93ef1c7 JR |
2217 | struct xlate_bond_recirc xr; |
2218 | bool use_recirc = false; | |
f0fb825a | 2219 | struct xvlan out_xvlan; |
9583bc14 | 2220 | |
fed8962a EG |
2221 | check_and_set_cvlan_mask(ctx->wc, out_xbundle); |
2222 | ||
f0fb825a EG |
2223 | xvlan_output_translate(out_xbundle, xvlan, &out_xvlan); |
2224 | if (out_xbundle->use_priority_tags) { | |
2225 | out_xvlan.v[0].pcp = ntohs(ctx->xin->flow.vlans[0].tci) & | |
2226 | VLAN_PCP_MASK; | |
2227 | } | |
2228 | vid = out_xvlan.v[0].vid; | |
417e7e66 | 2229 | if (ovs_list_is_empty(&out_xbundle->xports)) { |
46c88433 EJ |
2230 | /* Partially configured bundle with no slaves. Drop the packet. */ |
2231 | return; | |
2232 | } else if (!out_xbundle->bond) { | |
417e7e66 | 2233 | xport = CONTAINER_OF(ovs_list_front(&out_xbundle->xports), struct xport, |
46c88433 | 2234 | bundle_node); |
9583bc14 | 2235 | } else { |
49a73e0c | 2236 | struct flow_wildcards *wc = ctx->wc; |
84f0f298 | 2237 | struct ofport_dpif *ofport; |
adcf00ba | 2238 | |
a80aba3a AZ |
2239 | if (ctx->xbridge->support.odp.recirc) { |
2240 | /* In case recirculation is not actually in use, 'xr.recirc_id' | |
2241 | * will be set to '0', since a valid 'recirc_id' can | |
82f9f1f5 AZ |
2242 | * not be zero. */ |
2243 | bond_update_post_recirc_rules(out_xbundle->bond, | |
2244 | &xr.recirc_id, | |
2245 | &xr.hash_basis); | |
2246 | if (xr.recirc_id) { | |
2247 | /* Use recirculation instead of output. */ | |
2248 | use_recirc = true; | |
e93ef1c7 | 2249 | xr.hash_alg = OVS_HASH_ALG_L4; |
54ecb5a2 AZ |
2250 | /* Recirculation does not require unmasking hash fields. */ |
2251 | wc = NULL; | |
adcf00ba AZ |
2252 | } |
2253 | } | |
46c88433 | 2254 | |
54ecb5a2 AZ |
2255 | ofport = bond_choose_output_slave(out_xbundle->bond, |
2256 | &ctx->xin->flow, wc, vid); | |
68f515ca | 2257 | xport = xport_lookup(ctx->xcfg, ofport); |
46c88433 EJ |
2258 | |
2259 | if (!xport) { | |
9583bc14 EJ |
2260 | /* No slaves enabled, so drop packet. */ |
2261 | return; | |
2262 | } | |
d6fc5f57 | 2263 | |
e93ef1c7 | 2264 | /* If use_recirc is set, the main thread will handle stats |
b256dc52 | 2265 | * accounting for this bond. */ |
e93ef1c7 | 2266 | if (!use_recirc) { |
b256dc52 JS |
2267 | if (ctx->xin->resubmit_stats) { |
2268 | bond_account(out_xbundle->bond, &ctx->xin->flow, vid, | |
2269 | ctx->xin->resubmit_stats->n_bytes); | |
2270 | } | |
2271 | if (ctx->xin->xcache) { | |
2272 | struct xc_entry *entry; | |
2273 | struct flow *flow; | |
2274 | ||
2275 | flow = &ctx->xin->flow; | |
2276 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_BOND); | |
901a517e JR |
2277 | entry->bond.bond = bond_ref(out_xbundle->bond); |
2278 | entry->bond.flow = xmemdup(flow, sizeof *flow); | |
2279 | entry->bond.vid = vid; | |
b256dc52 | 2280 | } |
d6fc5f57 | 2281 | } |
9583bc14 EJ |
2282 | } |
2283 | ||
f0fb825a EG |
2284 | memcpy(&old_vlans, &ctx->xin->flow.vlans, sizeof(old_vlans)); |
2285 | xvlan_put(&ctx->xin->flow, &out_xvlan); | |
9583bc14 | 2286 | |
feee58b9 | 2287 | compose_output_action(ctx, xport->ofp_port, use_recirc ? &xr : NULL, |
11938578 | 2288 | false, false); |
f0fb825a | 2289 | memcpy(&ctx->xin->flow.vlans, &old_vlans, sizeof(old_vlans)); |
9583bc14 EJ |
2290 | } |
2291 | ||
2292 | /* A VM broadcasts a gratuitous ARP to indicate that it has resumed after | |
2293 | * migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to | |
2294 | * indicate this; newer upstream kernels use gratuitous ARP requests. */ | |
2295 | static bool | |
2296 | is_gratuitous_arp(const struct flow *flow, struct flow_wildcards *wc) | |
2297 | { | |
2298 | if (flow->dl_type != htons(ETH_TYPE_ARP)) { | |
2299 | return false; | |
2300 | } | |
2301 | ||
2302 | memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst); | |
2303 | if (!eth_addr_is_broadcast(flow->dl_dst)) { | |
2304 | return false; | |
2305 | } | |
2306 | ||
2307 | memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto); | |
2308 | if (flow->nw_proto == ARP_OP_REPLY) { | |
2309 | return true; | |
2310 | } else if (flow->nw_proto == ARP_OP_REQUEST) { | |
2311 | memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src); | |
2312 | memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst); | |
2313 | ||
2314 | return flow->nw_src == flow->nw_dst; | |
2315 | } else { | |
2316 | return false; | |
2317 | } | |
2318 | } | |
2319 | ||
ff69c24a FL |
2320 | /* Determines whether packets in 'flow' within 'xbridge' should be forwarded or |
2321 | * dropped. Returns true if they may be forwarded, false if they should be | |
2322 | * dropped. | |
2323 | * | |
2324 | * 'in_port' must be the xport that corresponds to flow->in_port. | |
2325 | * 'in_port' must be part of a bundle (e.g. in_port->bundle must be nonnull). | |
2326 | * | |
2327 | * 'vlan' must be the VLAN that corresponds to flow->vlan_tci on 'in_port', as | |
2328 | * returned by input_vid_to_vlan(). It must be a valid VLAN for 'in_port', as | |
2329 | * checked by input_vid_is_valid(). | |
2330 | * | |
2331 | * May also add tags to '*tags', although the current implementation only does | |
2332 | * so in one special case. | |
2333 | */ | |
2334 | static bool | |
2335 | is_admissible(struct xlate_ctx *ctx, struct xport *in_port, | |
2336 | uint16_t vlan) | |
2337 | { | |
2338 | struct xbundle *in_xbundle = in_port->xbundle; | |
2339 | const struct xbridge *xbridge = ctx->xbridge; | |
2340 | struct flow *flow = &ctx->xin->flow; | |
2341 | ||
2342 | /* Drop frames for reserved multicast addresses | |
2343 | * only if forward_bpdu option is absent. */ | |
2344 | if (!xbridge->forward_bpdu && eth_addr_is_reserved(flow->dl_dst)) { | |
2d9b49dd BP |
2345 | xlate_report(ctx, OFT_DETAIL, |
2346 | "packet has reserved destination MAC, dropping"); | |
ff69c24a FL |
2347 | return false; |
2348 | } | |
2349 | ||
2350 | if (in_xbundle->bond) { | |
2351 | struct mac_entry *mac; | |
2352 | ||
2353 | switch (bond_check_admissibility(in_xbundle->bond, in_port->ofport, | |
2354 | flow->dl_dst)) { | |
2355 | case BV_ACCEPT: | |
2356 | break; | |
2357 | ||
2358 | case BV_DROP: | |
2d9b49dd BP |
2359 | xlate_report(ctx, OFT_DETAIL, |
2360 | "bonding refused admissibility, dropping"); | |
ff69c24a FL |
2361 | return false; |
2362 | ||
2363 | case BV_DROP_IF_MOVED: | |
2364 | ovs_rwlock_rdlock(&xbridge->ml->rwlock); | |
2365 | mac = mac_learning_lookup(xbridge->ml, flow->dl_src, vlan); | |
9d078ec2 BP |
2366 | if (mac |
2367 | && mac_entry_get_port(xbridge->ml, mac) != in_xbundle->ofbundle | |
49a73e0c | 2368 | && (!is_gratuitous_arp(flow, ctx->wc) |
9d078ec2 | 2369 | || mac_entry_is_grat_arp_locked(mac))) { |
ff69c24a | 2370 | ovs_rwlock_unlock(&xbridge->ml->rwlock); |
2d9b49dd BP |
2371 | xlate_report(ctx, OFT_DETAIL, |
2372 | "SLB bond thinks this packet looped back, " | |
ff69c24a FL |
2373 | "dropping"); |
2374 | return false; | |
2375 | } | |
2376 | ovs_rwlock_unlock(&xbridge->ml->rwlock); | |
2377 | break; | |
2378 | } | |
2379 | } | |
2380 | ||
2381 | return true; | |
2382 | } | |
2383 | ||
2d9b49dd BP |
2384 | static bool |
2385 | update_learning_table__(const struct xbridge *xbridge, | |
2386 | struct xbundle *in_xbundle, struct eth_addr dl_src, | |
2387 | int vlan, bool is_grat_arp) | |
2388 | { | |
2389 | return (in_xbundle == &ofpp_none_bundle | |
2390 | || !mac_learning_update(xbridge->ml, dl_src, vlan, | |
2391 | is_grat_arp, | |
2392 | in_xbundle->bond != NULL, | |
2393 | in_xbundle->ofbundle)); | |
2394 | } | |
2395 | ||
ee047520 | 2396 | static void |
2d9b49dd | 2397 | update_learning_table(const struct xlate_ctx *ctx, |
064799a1 JR |
2398 | struct xbundle *in_xbundle, struct eth_addr dl_src, |
2399 | int vlan, bool is_grat_arp) | |
ee047520 | 2400 | { |
2d9b49dd BP |
2401 | if (!update_learning_table__(ctx->xbridge, in_xbundle, dl_src, vlan, |
2402 | is_grat_arp)) { | |
2403 | xlate_report_debug(ctx, OFT_DETAIL, "learned that "ETH_ADDR_FMT" is " | |
2404 | "on port %s in VLAN %d", | |
2405 | ETH_ADDR_ARGS(dl_src), in_xbundle->name, vlan); | |
ee047520 | 2406 | } |
9583bc14 EJ |
2407 | } |
2408 | ||
86e2dcdd FL |
2409 | /* Updates multicast snooping table 'ms' given that a packet matching 'flow' |
2410 | * was received on 'in_xbundle' in 'vlan' and is either Report or Query. */ | |
2411 | static void | |
2d9b49dd | 2412 | update_mcast_snooping_table4__(const struct xlate_ctx *ctx, |
06994f87 TLSC |
2413 | const struct flow *flow, |
2414 | struct mcast_snooping *ms, int vlan, | |
2415 | struct xbundle *in_xbundle, | |
2416 | const struct dp_packet *packet) | |
86e2dcdd FL |
2417 | OVS_REQ_WRLOCK(ms->rwlock) |
2418 | { | |
46445c63 | 2419 | const struct igmp_header *igmp; |
e3102e42 | 2420 | int count; |
46445c63 | 2421 | size_t offset; |
06994f87 | 2422 | ovs_be32 ip4 = flow->igmp_group_ip4; |
86e2dcdd | 2423 | |
46445c63 EC |
2424 | offset = (char *) dp_packet_l4(packet) - (char *) dp_packet_data(packet); |
2425 | igmp = dp_packet_at(packet, offset, IGMP_HEADER_LEN); | |
2426 | if (!igmp || csum(igmp, dp_packet_l4_size(packet)) != 0) { | |
2d9b49dd BP |
2427 | xlate_report_debug(ctx, OFT_DETAIL, |
2428 | "multicast snooping received bad IGMP " | |
2429 | "checksum on port %s in VLAN %d", | |
2430 | in_xbundle->name, vlan); | |
46445c63 EC |
2431 | return; |
2432 | } | |
2433 | ||
86e2dcdd FL |
2434 | switch (ntohs(flow->tp_src)) { |
2435 | case IGMP_HOST_MEMBERSHIP_REPORT: | |
2436 | case IGMPV2_HOST_MEMBERSHIP_REPORT: | |
964a4d5f | 2437 | if (mcast_snooping_add_group4(ms, ip4, vlan, in_xbundle->ofbundle)) { |
2d9b49dd BP |
2438 | xlate_report_debug(ctx, OFT_DETAIL, |
2439 | "multicast snooping learned that " | |
2440 | IP_FMT" is on port %s in VLAN %d", | |
2441 | IP_ARGS(ip4), in_xbundle->name, vlan); | |
86e2dcdd FL |
2442 | } |
2443 | break; | |
2444 | case IGMP_HOST_LEAVE_MESSAGE: | |
964a4d5f | 2445 | if (mcast_snooping_leave_group4(ms, ip4, vlan, in_xbundle->ofbundle)) { |
2d9b49dd BP |
2446 | xlate_report_debug(ctx, OFT_DETAIL, "multicast snooping leaving " |
2447 | IP_FMT" is on port %s in VLAN %d", | |
2448 | IP_ARGS(ip4), in_xbundle->name, vlan); | |
86e2dcdd FL |
2449 | } |
2450 | break; | |
2451 | case IGMP_HOST_MEMBERSHIP_QUERY: | |
2452 | if (flow->nw_src && mcast_snooping_add_mrouter(ms, vlan, | |
2d9b49dd BP |
2453 | in_xbundle->ofbundle)) { |
2454 | xlate_report_debug(ctx, OFT_DETAIL, "multicast snooping query " | |
2455 | "from "IP_FMT" is on port %s in VLAN %d", | |
2456 | IP_ARGS(flow->nw_src), in_xbundle->name, vlan); | |
86e2dcdd FL |
2457 | } |
2458 | break; | |
e3102e42 | 2459 | case IGMPV3_HOST_MEMBERSHIP_REPORT: |
2d9b49dd BP |
2460 | count = mcast_snooping_add_report(ms, packet, vlan, |
2461 | in_xbundle->ofbundle); | |
2462 | if (count) { | |
2463 | xlate_report_debug(ctx, OFT_DETAIL, "multicast snooping processed " | |
2464 | "%d addresses on port %s in VLAN %d", | |
2465 | count, in_xbundle->name, vlan); | |
e3102e42 TLSC |
2466 | } |
2467 | break; | |
86e2dcdd FL |
2468 | } |
2469 | } | |
2470 | ||
06994f87 | 2471 | static void |
2d9b49dd | 2472 | update_mcast_snooping_table6__(const struct xlate_ctx *ctx, |
06994f87 TLSC |
2473 | const struct flow *flow, |
2474 | struct mcast_snooping *ms, int vlan, | |
2475 | struct xbundle *in_xbundle, | |
2476 | const struct dp_packet *packet) | |
2477 | OVS_REQ_WRLOCK(ms->rwlock) | |
2478 | { | |
46445c63 | 2479 | const struct mld_header *mld; |
06994f87 | 2480 | int count; |
46445c63 EC |
2481 | size_t offset; |
2482 | ||
2483 | offset = (char *) dp_packet_l4(packet) - (char *) dp_packet_data(packet); | |
2484 | mld = dp_packet_at(packet, offset, MLD_HEADER_LEN); | |
2485 | ||
2486 | if (!mld || | |
2487 | packet_csum_upperlayer6(dp_packet_l3(packet), | |
2488 | mld, IPPROTO_ICMPV6, | |
2489 | dp_packet_l4_size(packet)) != 0) { | |
2d9b49dd BP |
2490 | xlate_report_debug(ctx, OFT_DETAIL, "multicast snooping received " |
2491 | "bad MLD checksum on port %s in VLAN %d", | |
2492 | in_xbundle->name, vlan); | |
46445c63 EC |
2493 | return; |
2494 | } | |
06994f87 TLSC |
2495 | |
2496 | switch (ntohs(flow->tp_src)) { | |
2497 | case MLD_QUERY: | |
2498 | if (!ipv6_addr_equals(&flow->ipv6_src, &in6addr_any) | |
2499 | && mcast_snooping_add_mrouter(ms, vlan, in_xbundle->ofbundle)) { | |
2d9b49dd BP |
2500 | xlate_report_debug(ctx, OFT_DETAIL, "multicast snooping query on " |
2501 | "port %s in VLAN %d", in_xbundle->name, vlan); | |
06994f87 TLSC |
2502 | } |
2503 | break; | |
2504 | case MLD_REPORT: | |
2505 | case MLD_DONE: | |
2506 | case MLD2_REPORT: | |
2507 | count = mcast_snooping_add_mld(ms, packet, vlan, in_xbundle->ofbundle); | |
2508 | if (count) { | |
2d9b49dd BP |
2509 | xlate_report_debug(ctx, OFT_DETAIL, "multicast snooping processed " |
2510 | "%d addresses on port %s in VLAN %d", | |
2511 | count, in_xbundle->name, vlan); | |
06994f87 TLSC |
2512 | } |
2513 | break; | |
2514 | } | |
2515 | } | |
2516 | ||
86e2dcdd FL |
2517 | /* Updates multicast snooping table 'ms' given that a packet matching 'flow' |
2518 | * was received on 'in_xbundle' in 'vlan'. */ | |
2519 | static void | |
2d9b49dd | 2520 | update_mcast_snooping_table(const struct xlate_ctx *ctx, |
86e2dcdd | 2521 | const struct flow *flow, int vlan, |
e3102e42 TLSC |
2522 | struct xbundle *in_xbundle, |
2523 | const struct dp_packet *packet) | |
86e2dcdd | 2524 | { |
2d9b49dd | 2525 | struct mcast_snooping *ms = ctx->xbridge->ms; |
86e2dcdd | 2526 | struct xbundle *mcast_xbundle; |
f4ae6e23 | 2527 | struct mcast_port_bundle *fport; |
86e2dcdd FL |
2528 | |
2529 | /* Don't learn the OFPP_NONE port. */ | |
2530 | if (in_xbundle == &ofpp_none_bundle) { | |
2531 | return; | |
2532 | } | |
2533 | ||
2534 | /* Don't learn from flood ports */ | |
2535 | mcast_xbundle = NULL; | |
2536 | ovs_rwlock_wrlock(&ms->rwlock); | |
f4ae6e23 | 2537 | LIST_FOR_EACH(fport, node, &ms->fport_list) { |
68f515ca | 2538 | mcast_xbundle = xbundle_lookup(ctx->xcfg, fport->port); |
86e2dcdd FL |
2539 | if (mcast_xbundle == in_xbundle) { |
2540 | break; | |
2541 | } | |
2542 | } | |
2543 | ||
2544 | if (!mcast_xbundle || mcast_xbundle != in_xbundle) { | |
06994f87 | 2545 | if (flow->dl_type == htons(ETH_TYPE_IP)) { |
2d9b49dd | 2546 | update_mcast_snooping_table4__(ctx, flow, ms, vlan, |
06994f87 TLSC |
2547 | in_xbundle, packet); |
2548 | } else { | |
2d9b49dd | 2549 | update_mcast_snooping_table6__(ctx, flow, ms, vlan, |
06994f87 TLSC |
2550 | in_xbundle, packet); |
2551 | } | |
86e2dcdd FL |
2552 | } |
2553 | ovs_rwlock_unlock(&ms->rwlock); | |
2554 | } | |
2555 | ||
2556 | /* send the packet to ports having the multicast group learned */ | |
2557 | static void | |
2558 | xlate_normal_mcast_send_group(struct xlate_ctx *ctx, | |
2559 | struct mcast_snooping *ms OVS_UNUSED, | |
2560 | struct mcast_group *grp, | |
f0fb825a EG |
2561 | struct xbundle *in_xbundle, |
2562 | const struct xvlan *xvlan) | |
86e2dcdd FL |
2563 | OVS_REQ_RDLOCK(ms->rwlock) |
2564 | { | |
86e2dcdd FL |
2565 | struct mcast_group_bundle *b; |
2566 | struct xbundle *mcast_xbundle; | |
2567 | ||
86e2dcdd | 2568 | LIST_FOR_EACH(b, bundle_node, &grp->bundle_lru) { |
68f515ca | 2569 | mcast_xbundle = xbundle_lookup(ctx->xcfg, b->port); |
86e2dcdd | 2570 | if (mcast_xbundle && mcast_xbundle != in_xbundle) { |
2d9b49dd | 2571 | xlate_report(ctx, OFT_DETAIL, "forwarding to mcast group port"); |
f0fb825a | 2572 | output_normal(ctx, mcast_xbundle, xvlan); |
86e2dcdd | 2573 | } else if (!mcast_xbundle) { |
2d9b49dd BP |
2574 | xlate_report(ctx, OFT_WARN, |
2575 | "mcast group port is unknown, dropping"); | |
86e2dcdd | 2576 | } else { |
2d9b49dd BP |
2577 | xlate_report(ctx, OFT_DETAIL, |
2578 | "mcast group port is input port, dropping"); | |
86e2dcdd FL |
2579 | } |
2580 | } | |
2581 | } | |
2582 | ||
2583 | /* send the packet to ports connected to multicast routers */ | |
2584 | static void | |
2585 | xlate_normal_mcast_send_mrouters(struct xlate_ctx *ctx, | |
2586 | struct mcast_snooping *ms, | |
f0fb825a EG |
2587 | struct xbundle *in_xbundle, |
2588 | const struct xvlan *xvlan) | |
86e2dcdd FL |
2589 | OVS_REQ_RDLOCK(ms->rwlock) |
2590 | { | |
86e2dcdd FL |
2591 | struct mcast_mrouter_bundle *mrouter; |
2592 | struct xbundle *mcast_xbundle; | |
2593 | ||
86e2dcdd | 2594 | LIST_FOR_EACH(mrouter, mrouter_node, &ms->mrouter_lru) { |
68f515ca | 2595 | mcast_xbundle = xbundle_lookup(ctx->xcfg, mrouter->port); |
94a881c1 | 2596 | if (mcast_xbundle && mcast_xbundle != in_xbundle |
f0fb825a | 2597 | && mrouter->vlan == xvlan->v[0].vid) { |
2d9b49dd | 2598 | xlate_report(ctx, OFT_DETAIL, "forwarding to mcast router port"); |
f0fb825a | 2599 | output_normal(ctx, mcast_xbundle, xvlan); |
86e2dcdd | 2600 | } else if (!mcast_xbundle) { |
2d9b49dd BP |
2601 | xlate_report(ctx, OFT_WARN, |
2602 | "mcast router port is unknown, dropping"); | |
f0fb825a | 2603 | } else if (mrouter->vlan != xvlan->v[0].vid) { |
2d9b49dd BP |
2604 | xlate_report(ctx, OFT_DETAIL, |
2605 | "mcast router is on another vlan, dropping"); | |
86e2dcdd | 2606 | } else { |
2d9b49dd BP |
2607 | xlate_report(ctx, OFT_DETAIL, |
2608 | "mcast router port is input port, dropping"); | |
86e2dcdd FL |
2609 | } |
2610 | } | |
2611 | } | |
2612 | ||
2613 | /* send the packet to ports flagged to be flooded */ | |
2614 | static void | |
2615 | xlate_normal_mcast_send_fports(struct xlate_ctx *ctx, | |
2616 | struct mcast_snooping *ms, | |
f0fb825a EG |
2617 | struct xbundle *in_xbundle, |
2618 | const struct xvlan *xvlan) | |
86e2dcdd FL |
2619 | OVS_REQ_RDLOCK(ms->rwlock) |
2620 | { | |
f4ae6e23 | 2621 | struct mcast_port_bundle *fport; |
86e2dcdd FL |
2622 | struct xbundle *mcast_xbundle; |
2623 | ||
f4ae6e23 | 2624 | LIST_FOR_EACH(fport, node, &ms->fport_list) { |
68f515ca | 2625 | mcast_xbundle = xbundle_lookup(ctx->xcfg, fport->port); |
86e2dcdd | 2626 | if (mcast_xbundle && mcast_xbundle != in_xbundle) { |
2d9b49dd | 2627 | xlate_report(ctx, OFT_DETAIL, "forwarding to mcast flood port"); |
f0fb825a | 2628 | output_normal(ctx, mcast_xbundle, xvlan); |
86e2dcdd | 2629 | } else if (!mcast_xbundle) { |
2d9b49dd BP |
2630 | xlate_report(ctx, OFT_WARN, |
2631 | "mcast flood port is unknown, dropping"); | |
86e2dcdd | 2632 | } else { |
2d9b49dd BP |
2633 | xlate_report(ctx, OFT_DETAIL, |
2634 | "mcast flood port is input port, dropping"); | |
86e2dcdd FL |
2635 | } |
2636 | } | |
2637 | } | |
2638 | ||
8e04a33f FL |
2639 | /* forward the Reports to configured ports */ |
2640 | static void | |
2641 | xlate_normal_mcast_send_rports(struct xlate_ctx *ctx, | |
2642 | struct mcast_snooping *ms, | |
f0fb825a EG |
2643 | struct xbundle *in_xbundle, |
2644 | const struct xvlan *xvlan) | |
8e04a33f FL |
2645 | OVS_REQ_RDLOCK(ms->rwlock) |
2646 | { | |
8e04a33f FL |
2647 | struct mcast_port_bundle *rport; |
2648 | struct xbundle *mcast_xbundle; | |
2649 | ||
8e04a33f | 2650 | LIST_FOR_EACH(rport, node, &ms->rport_list) { |
68f515ca | 2651 | mcast_xbundle = xbundle_lookup(ctx->xcfg, rport->port); |
0eb77c3a LJ |
2652 | if (mcast_xbundle |
2653 | && mcast_xbundle != in_xbundle | |
2654 | && mcast_xbundle->ofbundle != in_xbundle->ofbundle) { | |
2d9b49dd BP |
2655 | xlate_report(ctx, OFT_DETAIL, |
2656 | "forwarding report to mcast flagged port"); | |
f0fb825a | 2657 | output_normal(ctx, mcast_xbundle, xvlan); |
8e04a33f | 2658 | } else if (!mcast_xbundle) { |
2d9b49dd BP |
2659 | xlate_report(ctx, OFT_WARN, |
2660 | "mcast port is unknown, dropping the report"); | |
8e04a33f | 2661 | } else { |
2d9b49dd BP |
2662 | xlate_report(ctx, OFT_DETAIL, |
2663 | "mcast port is input port, dropping the Report"); | |
8e04a33f FL |
2664 | } |
2665 | } | |
2666 | } | |
2667 | ||
682800a4 FL |
2668 | static void |
2669 | xlate_normal_flood(struct xlate_ctx *ctx, struct xbundle *in_xbundle, | |
f0fb825a | 2670 | struct xvlan *xvlan) |
682800a4 FL |
2671 | { |
2672 | struct xbundle *xbundle; | |
2673 | ||
2674 | LIST_FOR_EACH (xbundle, list_node, &ctx->xbridge->xbundles) { | |
2675 | if (xbundle != in_xbundle | |
0eb77c3a | 2676 | && xbundle->ofbundle != in_xbundle->ofbundle |
f0fb825a | 2677 | && xbundle_includes_vlan(xbundle, xvlan) |
682800a4 FL |
2678 | && xbundle->floodable |
2679 | && !xbundle_mirror_out(ctx->xbridge, xbundle)) { | |
f0fb825a | 2680 | output_normal(ctx, xbundle, xvlan); |
682800a4 FL |
2681 | } |
2682 | } | |
2031ef97 | 2683 | ctx->nf_output_iface = NF_OUT_FLOOD; |
682800a4 FL |
2684 | } |
2685 | ||
a75636c8 BP |
2686 | static bool |
2687 | is_ip_local_multicast(const struct flow *flow, struct flow_wildcards *wc) | |
2688 | { | |
2689 | if (flow->dl_type == htons(ETH_TYPE_IP)) { | |
2690 | memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst); | |
2691 | return ip_is_local_multicast(flow->nw_dst); | |
2692 | } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) { | |
2693 | memset(&wc->masks.ipv6_dst, 0xff, sizeof wc->masks.ipv6_dst); | |
2694 | return ipv6_is_all_hosts(&flow->ipv6_dst); | |
2695 | } else { | |
2696 | return false; | |
2697 | } | |
2698 | } | |
2699 | ||
9583bc14 EJ |
2700 | static void |
2701 | xlate_normal(struct xlate_ctx *ctx) | |
2702 | { | |
49a73e0c | 2703 | struct flow_wildcards *wc = ctx->wc; |
33bf9176 | 2704 | struct flow *flow = &ctx->xin->flow; |
46c88433 EJ |
2705 | struct xbundle *in_xbundle; |
2706 | struct xport *in_port; | |
9583bc14 | 2707 | struct mac_entry *mac; |
d6d5bbc9 | 2708 | void *mac_port; |
f0fb825a EG |
2709 | struct xvlan in_xvlan; |
2710 | struct xvlan xvlan; | |
9583bc14 | 2711 | uint16_t vlan; |
9583bc14 | 2712 | |
33bf9176 BP |
2713 | memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src); |
2714 | memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst); | |
f0fb825a | 2715 | wc->masks.vlans[0].tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
9583bc14 | 2716 | |
2d9b49dd | 2717 | in_xbundle = lookup_input_bundle(ctx, flow->in_port.ofp_port, &in_port); |
46c88433 | 2718 | if (!in_xbundle) { |
2d9b49dd | 2719 | xlate_report(ctx, OFT_WARN, "no input bundle, dropping"); |
9583bc14 EJ |
2720 | return; |
2721 | } | |
2722 | ||
2723 | /* Drop malformed frames. */ | |
f0fb825a EG |
2724 | if (eth_type_vlan(flow->dl_type) && |
2725 | !(flow->vlans[0].tci & htons(VLAN_CFI))) { | |
9583bc14 | 2726 | if (ctx->xin->packet != NULL) { |
2d9b49dd BP |
2727 | xlate_report_error(ctx, "dropping packet with partial " |
2728 | "VLAN tag received on port %s", | |
2729 | in_xbundle->name); | |
9583bc14 | 2730 | } |
2d9b49dd | 2731 | xlate_report(ctx, OFT_WARN, "partial VLAN tag, dropping"); |
9583bc14 EJ |
2732 | return; |
2733 | } | |
2734 | ||
2735 | /* Drop frames on bundles reserved for mirroring. */ | |
46c88433 | 2736 | if (xbundle_mirror_out(ctx->xbridge, in_xbundle)) { |
9583bc14 | 2737 | if (ctx->xin->packet != NULL) { |
2d9b49dd BP |
2738 | xlate_report_error(ctx, "dropping packet received on port %s, " |
2739 | "which is reserved exclusively for mirroring", | |
2740 | in_xbundle->name); | |
9583bc14 | 2741 | } |
2d9b49dd BP |
2742 | xlate_report(ctx, OFT_WARN, |
2743 | "input port is mirror output port, dropping"); | |
9583bc14 EJ |
2744 | return; |
2745 | } | |
2746 | ||
2747 | /* Check VLAN. */ | |
f0fb825a EG |
2748 | xvlan_extract(flow, &in_xvlan); |
2749 | if (!input_vid_is_valid(ctx, in_xvlan.v[0].vid, in_xbundle)) { | |
2d9b49dd BP |
2750 | xlate_report(ctx, OFT_WARN, |
2751 | "disallowed VLAN VID for this input port, dropping"); | |
9583bc14 EJ |
2752 | return; |
2753 | } | |
f0fb825a EG |
2754 | xvlan_input_translate(in_xbundle, &in_xvlan, &xvlan); |
2755 | vlan = xvlan.v[0].vid; | |
9583bc14 EJ |
2756 | |
2757 | /* Check other admissibility requirements. */ | |
2758 | if (in_port && !is_admissible(ctx, in_port, vlan)) { | |
2759 | return; | |
2760 | } | |
2761 | ||
2762 | /* Learn source MAC. */ | |
064799a1 | 2763 | bool is_grat_arp = is_gratuitous_arp(flow, wc); |
875ab130 BP |
2764 | if (ctx->xin->allow_side_effects |
2765 | && flow->packet_type == htonl(PT_ETH) | |
2766 | && in_port->pt_mode != NETDEV_PT_LEGACY_L3 | |
2767 | ) { | |
2d9b49dd | 2768 | update_learning_table(ctx, in_xbundle, flow->dl_src, vlan, |
064799a1 | 2769 | is_grat_arp); |
9583bc14 | 2770 | } |
064799a1 | 2771 | if (ctx->xin->xcache && in_xbundle != &ofpp_none_bundle) { |
b256dc52 JS |
2772 | struct xc_entry *entry; |
2773 | ||
064799a1 | 2774 | /* Save just enough info to update mac learning table later. */ |
b256dc52 | 2775 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_NORMAL); |
901a517e JR |
2776 | entry->normal.ofproto = ctx->xbridge->ofproto; |
2777 | entry->normal.in_port = flow->in_port.ofp_port; | |
2778 | entry->normal.dl_src = flow->dl_src; | |
2779 | entry->normal.vlan = vlan; | |
2780 | entry->normal.is_gratuitous_arp = is_grat_arp; | |
b256dc52 | 2781 | } |
9583bc14 EJ |
2782 | |
2783 | /* Determine output bundle. */ | |
86e2dcdd FL |
2784 | if (mcast_snooping_enabled(ctx->xbridge->ms) |
2785 | && !eth_addr_is_broadcast(flow->dl_dst) | |
2786 | && eth_addr_is_multicast(flow->dl_dst) | |
06994f87 | 2787 | && is_ip_any(flow)) { |
86e2dcdd | 2788 | struct mcast_snooping *ms = ctx->xbridge->ms; |
06994f87 | 2789 | struct mcast_group *grp = NULL; |
86e2dcdd | 2790 | |
a75636c8 | 2791 | if (is_igmp(flow, wc)) { |
1bc24169 BP |
2792 | /* |
2793 | * IGMP packets need to take the slow path, in order to be | |
2794 | * processed for mdb updates. That will prevent expires | |
2795 | * firing off even after hosts have sent reports. | |
2796 | */ | |
2797 | ctx->xout->slow |= SLOW_ACTION; | |
2798 | ||
a75636c8 | 2799 | memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src); |
d29f137b TLSC |
2800 | if (mcast_snooping_is_membership(flow->tp_src) || |
2801 | mcast_snooping_is_query(flow->tp_src)) { | |
df70a773 | 2802 | if (ctx->xin->allow_side_effects && ctx->xin->packet) { |
2d9b49dd | 2803 | update_mcast_snooping_table(ctx, flow, vlan, |
e3102e42 | 2804 | in_xbundle, ctx->xin->packet); |
d29f137b | 2805 | } |
86e2dcdd | 2806 | } |
d6d5bbc9 | 2807 | |
86e2dcdd FL |
2808 | if (mcast_snooping_is_membership(flow->tp_src)) { |
2809 | ovs_rwlock_rdlock(&ms->rwlock); | |
f0fb825a | 2810 | xlate_normal_mcast_send_mrouters(ctx, ms, in_xbundle, &xvlan); |
8e04a33f FL |
2811 | /* RFC4541: section 2.1.1, item 1: A snooping switch should |
2812 | * forward IGMP Membership Reports only to those ports where | |
2813 | * multicast routers are attached. Alternatively stated: a | |
2814 | * snooping switch should not forward IGMP Membership Reports | |
2815 | * to ports on which only hosts are attached. | |
2816 | * An administrative control may be provided to override this | |
2817 | * restriction, allowing the report messages to be flooded to | |
2818 | * other ports. */ | |
f0fb825a | 2819 | xlate_normal_mcast_send_rports(ctx, ms, in_xbundle, &xvlan); |
86e2dcdd FL |
2820 | ovs_rwlock_unlock(&ms->rwlock); |
2821 | } else { | |
2d9b49dd | 2822 | xlate_report(ctx, OFT_DETAIL, "multicast traffic, flooding"); |
f0fb825a | 2823 | xlate_normal_flood(ctx, in_xbundle, &xvlan); |
86e2dcdd FL |
2824 | } |
2825 | return; | |
a75636c8 | 2826 | } else if (is_mld(flow, wc)) { |
06994f87 | 2827 | ctx->xout->slow |= SLOW_ACTION; |
df70a773 | 2828 | if (ctx->xin->allow_side_effects && ctx->xin->packet) { |
2d9b49dd | 2829 | update_mcast_snooping_table(ctx, flow, vlan, |
06994f87 TLSC |
2830 | in_xbundle, ctx->xin->packet); |
2831 | } | |
a75636c8 | 2832 | if (is_mld_report(flow, wc)) { |
06994f87 | 2833 | ovs_rwlock_rdlock(&ms->rwlock); |
f0fb825a EG |
2834 | xlate_normal_mcast_send_mrouters(ctx, ms, in_xbundle, &xvlan); |
2835 | xlate_normal_mcast_send_rports(ctx, ms, in_xbundle, &xvlan); | |
06994f87 TLSC |
2836 | ovs_rwlock_unlock(&ms->rwlock); |
2837 | } else { | |
2d9b49dd | 2838 | xlate_report(ctx, OFT_DETAIL, "MLD query, flooding"); |
f0fb825a | 2839 | xlate_normal_flood(ctx, in_xbundle, &xvlan); |
06994f87 | 2840 | } |
86e2dcdd | 2841 | } else { |
a75636c8 | 2842 | if (is_ip_local_multicast(flow, wc)) { |
86e2dcdd FL |
2843 | /* RFC4541: section 2.1.2, item 2: Packets with a dst IP |
2844 | * address in the 224.0.0.x range which are not IGMP must | |
2845 | * be forwarded on all ports */ | |
2d9b49dd BP |
2846 | xlate_report(ctx, OFT_DETAIL, |
2847 | "RFC4541: section 2.1.2, item 2, flooding"); | |
f0fb825a | 2848 | xlate_normal_flood(ctx, in_xbundle, &xvlan); |
86e2dcdd FL |
2849 | return; |
2850 | } | |
2851 | } | |
2852 | ||
2853 | /* forwarding to group base ports */ | |
2854 | ovs_rwlock_rdlock(&ms->rwlock); | |
06994f87 TLSC |
2855 | if (flow->dl_type == htons(ETH_TYPE_IP)) { |
2856 | grp = mcast_snooping_lookup4(ms, flow->nw_dst, vlan); | |
2857 | } else if (flow->dl_type == htons(ETH_TYPE_IPV6)) { | |
2858 | grp = mcast_snooping_lookup(ms, &flow->ipv6_dst, vlan); | |
2859 | } | |
86e2dcdd | 2860 | if (grp) { |
f0fb825a EG |
2861 | xlate_normal_mcast_send_group(ctx, ms, grp, in_xbundle, &xvlan); |
2862 | xlate_normal_mcast_send_fports(ctx, ms, in_xbundle, &xvlan); | |
2863 | xlate_normal_mcast_send_mrouters(ctx, ms, in_xbundle, &xvlan); | |
9583bc14 | 2864 | } else { |
86e2dcdd | 2865 | if (mcast_snooping_flood_unreg(ms)) { |
2d9b49dd BP |
2866 | xlate_report(ctx, OFT_DETAIL, |
2867 | "unregistered multicast, flooding"); | |
f0fb825a | 2868 | xlate_normal_flood(ctx, in_xbundle, &xvlan); |
86e2dcdd | 2869 | } else { |
f0fb825a EG |
2870 | xlate_normal_mcast_send_mrouters(ctx, ms, in_xbundle, &xvlan); |
2871 | xlate_normal_mcast_send_fports(ctx, ms, in_xbundle, &xvlan); | |
86e2dcdd | 2872 | } |
9583bc14 | 2873 | } |
86e2dcdd | 2874 | ovs_rwlock_unlock(&ms->rwlock); |
9583bc14 | 2875 | } else { |
86e2dcdd FL |
2876 | ovs_rwlock_rdlock(&ctx->xbridge->ml->rwlock); |
2877 | mac = mac_learning_lookup(ctx->xbridge->ml, flow->dl_dst, vlan); | |
9d078ec2 | 2878 | mac_port = mac ? mac_entry_get_port(ctx->xbridge->ml, mac) : NULL; |
86e2dcdd FL |
2879 | ovs_rwlock_unlock(&ctx->xbridge->ml->rwlock); |
2880 | ||
2881 | if (mac_port) { | |
68f515ca | 2882 | struct xbundle *mac_xbundle = xbundle_lookup(ctx->xcfg, mac_port); |
0eb77c3a LJ |
2883 | if (mac_xbundle |
2884 | && mac_xbundle != in_xbundle | |
2885 | && mac_xbundle->ofbundle != in_xbundle->ofbundle) { | |
2d9b49dd | 2886 | xlate_report(ctx, OFT_DETAIL, "forwarding to learned port"); |
f0fb825a | 2887 | output_normal(ctx, mac_xbundle, &xvlan); |
86e2dcdd | 2888 | } else if (!mac_xbundle) { |
2d9b49dd BP |
2889 | xlate_report(ctx, OFT_WARN, |
2890 | "learned port is unknown, dropping"); | |
86e2dcdd | 2891 | } else { |
2d9b49dd BP |
2892 | xlate_report(ctx, OFT_DETAIL, |
2893 | "learned port is input port, dropping"); | |
86e2dcdd FL |
2894 | } |
2895 | } else { | |
2d9b49dd BP |
2896 | xlate_report(ctx, OFT_DETAIL, |
2897 | "no learned MAC for destination, flooding"); | |
f0fb825a | 2898 | xlate_normal_flood(ctx, in_xbundle, &xvlan); |
86e2dcdd | 2899 | } |
9583bc14 EJ |
2900 | } |
2901 | } | |
2902 | ||
a6092018 BP |
2903 | /* Appends a "sample" action for sFlow or IPFIX to 'ctx->odp_actions'. The |
2904 | * 'probability' is the number of packets out of UINT32_MAX to sample. The | |
8de6ff3e JP |
2905 | * 'cookie' is passed back in the callback for each sampled packet. |
2906 | * 'tunnel_out_port', if not ODPP_NONE, is added as the | |
2907 | * OVS_USERSPACE_ATTR_EGRESS_TUN_PORT attribute. If 'include_actions', | |
2908 | * an OVS_USERSPACE_ATTR_ACTIONS attribute is added. If | |
2909 | * 'emit_set_tunnel', sample(sampling_port=1) would translate into | |
2910 | * datapath sample action set(tunnel(...)), sample(...) and it is used | |
2911 | * for sampling egress tunnel information. | |
9583bc14 EJ |
2912 | */ |
2913 | static size_t | |
a6092018 | 2914 | compose_sample_action(struct xlate_ctx *ctx, |
9583bc14 | 2915 | const uint32_t probability, |
8de6ff3e | 2916 | const struct user_action_cookie *cookie, |
7321bda3 NM |
2917 | const odp_port_t tunnel_out_port, |
2918 | bool include_actions) | |
9583bc14 | 2919 | { |
b97f2c3a BY |
2920 | if (probability == 0) { |
2921 | /* No need to generate sampling or the inner action. */ | |
2922 | return 0; | |
2923 | } | |
2924 | ||
31b29c2e AZ |
2925 | /* If the slow path meter is configured by the controller, |
2926 | * insert a meter action before the user space action. */ | |
2927 | struct ofproto *ofproto = &ctx->xin->ofproto->up; | |
2928 | uint32_t meter_id = ofproto->slowpath_meter_id; | |
2929 | ||
2930 | /* When meter action is not required, avoid generate sample action | |
2931 | * for 100% sampling rate. */ | |
2932 | bool is_sample = probability < UINT32_MAX || meter_id != UINT32_MAX; | |
72471622 BY |
2933 | size_t sample_offset, actions_offset; |
2934 | if (is_sample) { | |
2935 | sample_offset = nl_msg_start_nested(ctx->odp_actions, | |
2936 | OVS_ACTION_ATTR_SAMPLE); | |
2937 | nl_msg_put_u32(ctx->odp_actions, OVS_SAMPLE_ATTR_PROBABILITY, | |
2938 | probability); | |
2939 | actions_offset = nl_msg_start_nested(ctx->odp_actions, | |
2940 | OVS_SAMPLE_ATTR_ACTIONS); | |
2941 | } | |
9583bc14 | 2942 | |
31b29c2e AZ |
2943 | if (meter_id != UINT32_MAX) { |
2944 | nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_METER, meter_id); | |
2945 | } | |
2946 | ||
a6092018 BP |
2947 | odp_port_t odp_port = ofp_port_to_odp_port( |
2948 | ctx->xbridge, ctx->xin->flow.in_port.ofp_port); | |
2949 | uint32_t pid = dpif_port_get_pid(ctx->xbridge->dpif, odp_port, | |
2950 | flow_hash_5tuple(&ctx->xin->flow, 0)); | |
8de6ff3e | 2951 | int cookie_offset = odp_put_userspace_action(pid, cookie, sizeof *cookie, |
a6092018 BP |
2952 | tunnel_out_port, |
2953 | include_actions, | |
2954 | ctx->odp_actions); | |
89a8a7f0 | 2955 | |
72471622 BY |
2956 | if (is_sample) { |
2957 | nl_msg_end_nested(ctx->odp_actions, actions_offset); | |
2958 | nl_msg_end_nested(ctx->odp_actions, sample_offset); | |
2959 | } | |
9583bc14 | 2960 | |
9583bc14 EJ |
2961 | return cookie_offset; |
2962 | } | |
2963 | ||
a6092018 BP |
2964 | /* If sFLow is not enabled, returns 0 without doing anything. |
2965 | * | |
2966 | * If sFlow is enabled, appends a template "sample" action to the ODP actions | |
2967 | * in 'ctx'. This action is a template because some of the information needed | |
2968 | * to fill it out is not available until flow translation is complete. In this | |
2969 | * case, this functions returns an offset, which is always nonzero, to pass | |
2970 | * later to fix_sflow_action() to fill in the rest of the template. */ | |
9583bc14 | 2971 | static size_t |
a6092018 | 2972 | compose_sflow_action(struct xlate_ctx *ctx) |
9583bc14 | 2973 | { |
a6092018 BP |
2974 | struct dpif_sflow *sflow = ctx->xbridge->sflow; |
2975 | if (!sflow || ctx->xin->flow.in_port.ofp_port == OFPP_NONE) { | |
9583bc14 EJ |
2976 | return 0; |
2977 | } | |
2978 | ||
fcb9579b JP |
2979 | struct user_action_cookie cookie = { |
2980 | .type = USER_ACTION_COOKIE_SFLOW, | |
2981 | .ofp_in_port = ctx->xin->flow.in_port.ofp_port, | |
2982 | .ofproto_uuid = ctx->xbridge->ofproto->uuid | |
2983 | }; | |
a6092018 | 2984 | return compose_sample_action(ctx, dpif_sflow_get_probability(sflow), |
8de6ff3e | 2985 | &cookie, ODPP_NONE, true); |
9583bc14 EJ |
2986 | } |
2987 | ||
f69f713b BY |
2988 | /* If flow IPFIX is enabled, make sure IPFIX flow sample action |
2989 | * at egress point of tunnel port is just in front of corresponding | |
2990 | * output action. If bridge IPFIX is enabled, this appends an IPFIX | |
2991 | * sample action to 'ctx->odp_actions'. */ | |
9583bc14 | 2992 | static void |
a6092018 | 2993 | compose_ipfix_action(struct xlate_ctx *ctx, odp_port_t output_odp_port) |
9583bc14 | 2994 | { |
a6092018 | 2995 | struct dpif_ipfix *ipfix = ctx->xbridge->ipfix; |
8b7ea2d4 | 2996 | odp_port_t tunnel_out_port = ODPP_NONE; |
9583bc14 | 2997 | |
a6092018 | 2998 | if (!ipfix || ctx->xin->flow.in_port.ofp_port == OFPP_NONE) { |
9583bc14 EJ |
2999 | return; |
3000 | } | |
3001 | ||
8b7ea2d4 WZ |
3002 | /* For input case, output_odp_port is ODPP_NONE, which is an invalid port |
3003 | * number. */ | |
3004 | if (output_odp_port == ODPP_NONE && | |
a6092018 | 3005 | !dpif_ipfix_get_bridge_exporter_input_sampling(ipfix)) { |
8b7ea2d4 WZ |
3006 | return; |
3007 | } | |
3008 | ||
f69f713b | 3009 | /* For output case, output_odp_port is valid. */ |
8b7ea2d4 | 3010 | if (output_odp_port != ODPP_NONE) { |
a6092018 | 3011 | if (!dpif_ipfix_get_bridge_exporter_output_sampling(ipfix)) { |
8b7ea2d4 WZ |
3012 | return; |
3013 | } | |
3014 | /* If tunnel sampling is enabled, put an additional option attribute: | |
3015 | * OVS_USERSPACE_ATTR_TUNNEL_OUT_PORT | |
3016 | */ | |
a6092018 | 3017 | if (dpif_ipfix_get_bridge_exporter_tunnel_sampling(ipfix) && |
cd32509e | 3018 | dpif_ipfix_is_tunnel_port(ipfix, output_odp_port) ) { |
8b7ea2d4 WZ |
3019 | tunnel_out_port = output_odp_port; |
3020 | } | |
3021 | } | |
3022 | ||
8de6ff3e JP |
3023 | struct user_action_cookie cookie = { |
3024 | .type = USER_ACTION_COOKIE_IPFIX, | |
fcb9579b JP |
3025 | .ofp_in_port = ctx->xin->flow.in_port.ofp_port, |
3026 | .ofproto_uuid = ctx->xbridge->ofproto->uuid, | |
3027 | .ipfix.output_odp_port = output_odp_port | |
a6092018 BP |
3028 | }; |
3029 | compose_sample_action(ctx, | |
3030 | dpif_ipfix_get_bridge_exporter_probability(ipfix), | |
8de6ff3e | 3031 | &cookie, tunnel_out_port, false); |
9583bc14 EJ |
3032 | } |
3033 | ||
a6092018 BP |
3034 | /* Fix "sample" action according to data collected while composing ODP actions, |
3035 | * as described in compose_sflow_action(). | |
3036 | * | |
8de6ff3e JP |
3037 | * 'user_cookie_offset' must be the offset returned by |
3038 | * compose_sflow_action(). */ | |
9583bc14 | 3039 | static void |
a6092018 | 3040 | fix_sflow_action(struct xlate_ctx *ctx, unsigned int user_cookie_offset) |
9583bc14 EJ |
3041 | { |
3042 | const struct flow *base = &ctx->base_flow; | |
8de6ff3e | 3043 | struct user_action_cookie *cookie; |
9583bc14 | 3044 | |
8de6ff3e | 3045 | cookie = ofpbuf_at(ctx->odp_actions, user_cookie_offset, sizeof *cookie); |
9583bc14 EJ |
3046 | ovs_assert(cookie->type == USER_ACTION_COOKIE_SFLOW); |
3047 | ||
f0fb825a | 3048 | cookie->sflow.vlan_tci = base->vlans[0].tci; |
a6092018 BP |
3049 | |
3050 | /* See http://www.sflow.org/sflow_version_5.txt (search for "Input/output | |
3051 | * port information") for the interpretation of cookie->output. */ | |
3052 | switch (ctx->sflow_n_outputs) { | |
3053 | case 0: | |
3054 | /* 0x40000000 | 256 means "packet dropped for unknown reason". */ | |
3055 | cookie->sflow.output = 0x40000000 | 256; | |
3056 | break; | |
3057 | ||
3058 | case 1: | |
3059 | cookie->sflow.output = dpif_sflow_odp_port_to_ifindex( | |
3060 | ctx->xbridge->sflow, ctx->sflow_odp_port); | |
3061 | if (cookie->sflow.output) { | |
3062 | break; | |
3063 | } | |
3064 | /* Fall through. */ | |
3065 | default: | |
3066 | /* 0x80000000 means "multiple output ports. */ | |
3067 | cookie->sflow.output = 0x80000000 | ctx->sflow_n_outputs; | |
3068 | break; | |
3069 | } | |
9583bc14 EJ |
3070 | } |
3071 | ||
515793d5 BP |
3072 | static bool |
3073 | process_special(struct xlate_ctx *ctx, const struct xport *xport) | |
db7d4e46 | 3074 | { |
515793d5 | 3075 | const struct flow *flow = &ctx->xin->flow; |
49a73e0c | 3076 | struct flow_wildcards *wc = ctx->wc; |
46c88433 | 3077 | const struct xbridge *xbridge = ctx->xbridge; |
515793d5 BP |
3078 | const struct dp_packet *packet = ctx->xin->packet; |
3079 | enum slow_path_reason slow; | |
642dc74d | 3080 | |
46c88433 | 3081 | if (!xport) { |
515793d5 | 3082 | slow = 0; |
46c88433 | 3083 | } else if (xport->cfm && cfm_should_process_flow(xport->cfm, flow, wc)) { |
db7d4e46 | 3084 | if (packet) { |
46c88433 | 3085 | cfm_process_heartbeat(xport->cfm, packet); |
db7d4e46 | 3086 | } |
515793d5 | 3087 | slow = SLOW_CFM; |
fab52e16 | 3088 | } else if (xport->bfd && bfd_should_process_flow(xport->bfd, flow, wc)) { |
db7d4e46 | 3089 | if (packet) { |
46c88433 | 3090 | bfd_process_packet(xport->bfd, flow, packet); |
60d02c72 AW |
3091 | /* If POLL received, immediately sends FINAL back. */ |
3092 | if (bfd_should_send_packet(xport->bfd)) { | |
6d308b28 | 3093 | ofproto_dpif_monitor_port_send_soon(xport->ofport); |
60d02c72 | 3094 | } |
db7d4e46 | 3095 | } |
515793d5 | 3096 | slow = SLOW_BFD; |
46c88433 | 3097 | } else if (xport->xbundle && xport->xbundle->lacp |
db7d4e46 JP |
3098 | && flow->dl_type == htons(ETH_TYPE_LACP)) { |
3099 | if (packet) { | |
46c88433 | 3100 | lacp_process_packet(xport->xbundle->lacp, xport->ofport, packet); |
db7d4e46 | 3101 | } |
515793d5 | 3102 | slow = SLOW_LACP; |
9efd308e DV |
3103 | } else if ((xbridge->stp || xbridge->rstp) && |
3104 | stp_should_process_flow(flow, wc)) { | |
db7d4e46 | 3105 | if (packet) { |
f025bcb7 JR |
3106 | xbridge->stp |
3107 | ? stp_process_packet(xport, packet) | |
3108 | : rstp_process_packet(xport, packet); | |
db7d4e46 | 3109 | } |
515793d5 | 3110 | slow = SLOW_STP; |
19aef6ef | 3111 | } else if (xport->lldp && lldp_should_process_flow(xport->lldp, flow)) { |
0477baa9 DF |
3112 | if (packet) { |
3113 | lldp_process_packet(xport->lldp, packet); | |
3114 | } | |
515793d5 | 3115 | slow = SLOW_LLDP; |
db7d4e46 | 3116 | } else { |
515793d5 BP |
3117 | slow = 0; |
3118 | } | |
3119 | ||
3120 | if (slow) { | |
3121 | ctx->xout->slow |= slow; | |
3122 | return true; | |
3123 | } else { | |
3124 | return false; | |
db7d4e46 JP |
3125 | } |
3126 | } | |
3127 | ||
a36de779 | 3128 | static int |
68f515ca HH |
3129 | tnl_route_lookup_flow(const struct xlate_ctx *ctx, |
3130 | const struct flow *oflow, | |
a8704b50 PS |
3131 | struct in6_addr *ip, struct in6_addr *src, |
3132 | struct xport **out_port) | |
a36de779 PS |
3133 | { |
3134 | char out_dev[IFNAMSIZ]; | |
3135 | struct xbridge *xbridge; | |
c2b878e0 TLSC |
3136 | struct in6_addr gw; |
3137 | struct in6_addr dst; | |
a36de779 | 3138 | |
c2b878e0 | 3139 | dst = flow_tnl_dst(&oflow->tunnel); |
ed52ca57 | 3140 | if (!ovs_router_lookup(oflow->pkt_mark, &dst, out_dev, src, &gw)) { |
a36de779 PS |
3141 | return -ENOENT; |
3142 | } | |
3143 | ||
c2b878e0 TLSC |
3144 | if (ipv6_addr_is_set(&gw) && |
3145 | (!IN6_IS_ADDR_V4MAPPED(&gw) || in6_addr_get_mapped_ipv4(&gw))) { | |
a36de779 PS |
3146 | *ip = gw; |
3147 | } else { | |
c2b878e0 | 3148 | *ip = dst; |
a36de779 PS |
3149 | } |
3150 | ||
68f515ca | 3151 | HMAP_FOR_EACH (xbridge, hmap_node, &ctx->xcfg->xbridges) { |
a36de779 PS |
3152 | if (!strncmp(xbridge->name, out_dev, IFNAMSIZ)) { |
3153 | struct xport *port; | |
3154 | ||
3155 | HMAP_FOR_EACH (port, ofp_node, &xbridge->xports) { | |
3156 | if (!strncmp(netdev_get_name(port->netdev), out_dev, IFNAMSIZ)) { | |
3157 | *out_port = port; | |
3158 | return 0; | |
3159 | } | |
3160 | } | |
3161 | } | |
3162 | } | |
3163 | return -ENOENT; | |
3164 | } | |
3165 | ||
3166 | static int | |
cdd42eda JG |
3167 | compose_table_xlate(struct xlate_ctx *ctx, const struct xport *out_dev, |
3168 | struct dp_packet *packet) | |
a36de779 | 3169 | { |
cdd42eda | 3170 | struct xbridge *xbridge = out_dev->xbridge; |
a36de779 PS |
3171 | struct ofpact_output output; |
3172 | struct flow flow; | |
3173 | ||
3174 | ofpact_init(&output.ofpact, OFPACT_OUTPUT, sizeof output); | |
cf62fa4c | 3175 | flow_extract(packet, &flow); |
cdd42eda JG |
3176 | flow.in_port.ofp_port = out_dev->ofp_port; |
3177 | output.port = OFPP_TABLE; | |
a36de779 PS |
3178 | output.max_len = 0; |
3179 | ||
1f4a8933 JR |
3180 | return ofproto_dpif_execute_actions__(xbridge->ofproto, |
3181 | ctx->xin->tables_version, &flow, | |
3182 | NULL, &output.ofpact, sizeof output, | |
2d9b49dd | 3183 | ctx->depth, ctx->resubmits, packet); |
a36de779 PS |
3184 | } |
3185 | ||
c2b878e0 TLSC |
3186 | static void |
3187 | tnl_send_nd_request(struct xlate_ctx *ctx, const struct xport *out_dev, | |
3188 | const struct eth_addr eth_src, | |
3189 | struct in6_addr * ipv6_src, struct in6_addr * ipv6_dst) | |
3190 | { | |
3191 | struct dp_packet packet; | |
3192 | ||
3193 | dp_packet_init(&packet, 0); | |
16187903 | 3194 | compose_nd_ns(&packet, eth_src, ipv6_src, ipv6_dst); |
c2b878e0 TLSC |
3195 | compose_table_xlate(ctx, out_dev, &packet); |
3196 | dp_packet_uninit(&packet); | |
3197 | } | |
3198 | ||
a36de779 | 3199 | static void |
cdd42eda | 3200 | tnl_send_arp_request(struct xlate_ctx *ctx, const struct xport *out_dev, |
74ff3298 | 3201 | const struct eth_addr eth_src, |
a36de779 PS |
3202 | ovs_be32 ip_src, ovs_be32 ip_dst) |
3203 | { | |
cf62fa4c | 3204 | struct dp_packet packet; |
a36de779 | 3205 | |
cf62fa4c | 3206 | dp_packet_init(&packet, 0); |
eb0b295e BP |
3207 | compose_arp(&packet, ARP_OP_REQUEST, |
3208 | eth_src, eth_addr_zero, true, ip_src, ip_dst); | |
a36de779 | 3209 | |
cdd42eda | 3210 | compose_table_xlate(ctx, out_dev, &packet); |
cf62fa4c | 3211 | dp_packet_uninit(&packet); |
a36de779 PS |
3212 | } |
3213 | ||
7c12dfc5 SC |
3214 | static void |
3215 | propagate_tunnel_data_to_flow__(struct flow *dst_flow, | |
3216 | const struct flow *src_flow, | |
3217 | struct eth_addr dmac, struct eth_addr smac, | |
3218 | struct in6_addr s_ip6, ovs_be32 s_ip, | |
3219 | bool is_tnl_ipv6, uint8_t nw_proto) | |
3220 | { | |
3221 | dst_flow->dl_dst = dmac; | |
3222 | dst_flow->dl_src = smac; | |
3223 | ||
3224 | dst_flow->packet_type = htonl(PT_ETH); | |
3225 | dst_flow->nw_dst = src_flow->tunnel.ip_dst; | |
3226 | dst_flow->nw_src = src_flow->tunnel.ip_src; | |
3227 | dst_flow->ipv6_dst = src_flow->tunnel.ipv6_dst; | |
3228 | dst_flow->ipv6_src = src_flow->tunnel.ipv6_src; | |
3229 | ||
3230 | dst_flow->nw_tos = src_flow->tunnel.ip_tos; | |
3231 | dst_flow->nw_ttl = src_flow->tunnel.ip_ttl; | |
3232 | dst_flow->tp_dst = src_flow->tunnel.tp_dst; | |
3233 | dst_flow->tp_src = src_flow->tunnel.tp_src; | |
3234 | ||
3235 | if (is_tnl_ipv6) { | |
3236 | dst_flow->dl_type = htons(ETH_TYPE_IPV6); | |
3237 | if (ipv6_mask_is_any(&dst_flow->ipv6_src) | |
3238 | && !ipv6_mask_is_any(&s_ip6)) { | |
3239 | dst_flow->ipv6_src = s_ip6; | |
3240 | } | |
3241 | } else { | |
3242 | dst_flow->dl_type = htons(ETH_TYPE_IP); | |
3243 | if (dst_flow->nw_src == 0 && s_ip) { | |
3244 | dst_flow->nw_src = s_ip; | |
3245 | } | |
3246 | } | |
3247 | dst_flow->nw_proto = nw_proto; | |
3248 | } | |
3249 | ||
3250 | /* | |
3251 | * Populate the 'flow' and 'base_flow' L3 fields to do the post tunnel push | |
3252 | * translations. | |
3253 | */ | |
3254 | static void | |
3255 | propagate_tunnel_data_to_flow(struct xlate_ctx *ctx, struct eth_addr dmac, | |
3256 | struct eth_addr smac, struct in6_addr s_ip6, | |
3257 | ovs_be32 s_ip, bool is_tnl_ipv6, | |
3258 | enum ovs_vport_type tnl_type) | |
3259 | { | |
3260 | struct flow *base_flow, *flow; | |
3261 | flow = &ctx->xin->flow; | |
3262 | base_flow = &ctx->base_flow; | |
3263 | uint8_t nw_proto = 0; | |
3264 | ||
3265 | switch (tnl_type) { | |
3266 | case OVS_VPORT_TYPE_GRE: | |
3267 | nw_proto = IPPROTO_GRE; | |
3268 | break; | |
3269 | case OVS_VPORT_TYPE_VXLAN: | |
3270 | case OVS_VPORT_TYPE_GENEVE: | |
3271 | nw_proto = IPPROTO_UDP; | |
3272 | break; | |
3273 | case OVS_VPORT_TYPE_LISP: | |
3274 | case OVS_VPORT_TYPE_STT: | |
3275 | case OVS_VPORT_TYPE_UNSPEC: | |
3276 | case OVS_VPORT_TYPE_NETDEV: | |
3277 | case OVS_VPORT_TYPE_INTERNAL: | |
3278 | case __OVS_VPORT_TYPE_MAX: | |
3279 | default: | |
3280 | OVS_NOT_REACHED(); | |
7c12dfc5 SC |
3281 | } |
3282 | /* | |
3283 | * Update base_flow first followed by flow as the dst_flow gets modified | |
3284 | * in the function. | |
3285 | */ | |
3286 | propagate_tunnel_data_to_flow__(base_flow, flow, dmac, smac, s_ip6, s_ip, | |
3287 | is_tnl_ipv6, nw_proto); | |
3288 | propagate_tunnel_data_to_flow__(flow, flow, dmac, smac, s_ip6, s_ip, | |
3289 | is_tnl_ipv6, nw_proto); | |
3290 | } | |
3291 | ||
a36de779 | 3292 | static int |
11938578 AZ |
3293 | native_tunnel_output(struct xlate_ctx *ctx, const struct xport *xport, |
3294 | const struct flow *flow, odp_port_t tunnel_odp_port, | |
3295 | bool truncate) | |
a36de779 | 3296 | { |
4975aa3e | 3297 | struct netdev_tnl_build_header_params tnl_params; |
a36de779 PS |
3298 | struct ovs_action_push_tnl tnl_push_data; |
3299 | struct xport *out_dev = NULL; | |
c2b878e0 TLSC |
3300 | ovs_be32 s_ip = 0, d_ip = 0; |
3301 | struct in6_addr s_ip6 = in6addr_any; | |
3302 | struct in6_addr d_ip6 = in6addr_any; | |
74ff3298 JR |
3303 | struct eth_addr smac; |
3304 | struct eth_addr dmac; | |
a36de779 | 3305 | int err; |
c2b878e0 TLSC |
3306 | char buf_sip6[INET6_ADDRSTRLEN]; |
3307 | char buf_dip6[INET6_ADDRSTRLEN]; | |
a36de779 | 3308 | |
245d88bc ZB |
3309 | /* Store sFlow data. */ |
3310 | uint32_t sflow_n_outputs = ctx->sflow_n_outputs; | |
3311 | ||
7c12dfc5 SC |
3312 | /* Structures to backup Ethernet and IP of base_flow. */ |
3313 | struct flow old_base_flow; | |
3314 | struct flow old_flow; | |
3315 | ||
3316 | /* Backup flow & base_flow data. */ | |
3317 | memcpy(&old_base_flow, &ctx->base_flow, sizeof old_base_flow); | |
3318 | memcpy(&old_flow, &ctx->xin->flow, sizeof old_flow); | |
3319 | ||
68f515ca | 3320 | err = tnl_route_lookup_flow(ctx, flow, &d_ip6, &s_ip6, &out_dev); |
a36de779 | 3321 | if (err) { |
2d9b49dd | 3322 | xlate_report(ctx, OFT_WARN, "native tunnel routing failed"); |
a36de779 PS |
3323 | return err; |
3324 | } | |
c2b878e0 | 3325 | |
2d9b49dd | 3326 | xlate_report(ctx, OFT_DETAIL, "tunneling to %s via %s", |
c2b878e0 TLSC |
3327 | ipv6_string_mapped(buf_dip6, &d_ip6), |
3328 | netdev_get_name(out_dev->netdev)); | |
a36de779 PS |
3329 | |
3330 | /* Use mac addr of bridge port of the peer. */ | |
74ff3298 | 3331 | err = netdev_get_etheraddr(out_dev->netdev, &smac); |
a36de779 | 3332 | if (err) { |
2d9b49dd BP |
3333 | xlate_report(ctx, OFT_WARN, |
3334 | "tunnel output device lacks Ethernet address"); | |
a36de779 PS |
3335 | return err; |
3336 | } | |
3337 | ||
c2b878e0 TLSC |
3338 | d_ip = in6_addr_get_mapped_ipv4(&d_ip6); |
3339 | if (d_ip) { | |
a8704b50 | 3340 | s_ip = in6_addr_get_mapped_ipv4(&s_ip6); |
a36de779 PS |
3341 | } |
3342 | ||
c2b878e0 | 3343 | err = tnl_neigh_lookup(out_dev->xbridge->name, &d_ip6, &dmac); |
a36de779 | 3344 | if (err) { |
2d9b49dd BP |
3345 | xlate_report(ctx, OFT_DETAIL, |
3346 | "neighbor cache miss for %s on bridge %s, " | |
c2b878e0 TLSC |
3347 | "sending %s request", |
3348 | buf_dip6, out_dev->xbridge->name, d_ip ? "ARP" : "ND"); | |
3349 | if (d_ip) { | |
3350 | tnl_send_arp_request(ctx, out_dev, smac, s_ip, d_ip); | |
3351 | } else { | |
3352 | tnl_send_nd_request(ctx, out_dev, smac, &s_ip6, &d_ip6); | |
3353 | } | |
a36de779 PS |
3354 | return err; |
3355 | } | |
c2b878e0 | 3356 | |
a36de779 PS |
3357 | if (ctx->xin->xcache) { |
3358 | struct xc_entry *entry; | |
3359 | ||
53902038 | 3360 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_TNL_NEIGH); |
901a517e JR |
3361 | ovs_strlcpy(entry->tnl_neigh_cache.br_name, out_dev->xbridge->name, |
3362 | sizeof entry->tnl_neigh_cache.br_name); | |
3363 | entry->tnl_neigh_cache.d_ipv6 = d_ip6; | |
a36de779 | 3364 | } |
81de18ec | 3365 | |
2d9b49dd | 3366 | xlate_report(ctx, OFT_DETAIL, "tunneling from "ETH_ADDR_FMT" %s" |
c2b878e0 TLSC |
3367 | " to "ETH_ADDR_FMT" %s", |
3368 | ETH_ADDR_ARGS(smac), ipv6_string_mapped(buf_sip6, &s_ip6), | |
3369 | ETH_ADDR_ARGS(dmac), buf_dip6); | |
3370 | ||
4975aa3e PS |
3371 | netdev_init_tnl_build_header_params(&tnl_params, flow, &s_ip6, dmac, smac); |
3372 | err = tnl_port_build_header(xport->ofport, &tnl_push_data, &tnl_params); | |
a36de779 PS |
3373 | if (err) { |
3374 | return err; | |
3375 | } | |
81765c00 BP |
3376 | tnl_push_data.tnl_port = tunnel_odp_port; |
3377 | tnl_push_data.out_port = out_dev->odp_port; | |
beb75a40 | 3378 | |
7c12dfc5 SC |
3379 | /* After tunnel header has been added, MAC and IP data of flow and |
3380 | * base_flow need to be set properly, since there is not recirculation | |
3381 | * any more when sending packet to tunnel. */ | |
beb75a40 | 3382 | |
11938578 AZ |
3383 | propagate_tunnel_data_to_flow(ctx, dmac, smac, s_ip6, |
3384 | s_ip, tnl_params.is_ipv6, | |
3385 | tnl_push_data.tnl_type); | |
7c12dfc5 | 3386 | |
11938578 AZ |
3387 | size_t clone_ofs = 0; |
3388 | size_t push_action_size; | |
7c12dfc5 | 3389 | |
11938578 AZ |
3390 | clone_ofs = nl_msg_start_nested(ctx->odp_actions, OVS_ACTION_ATTR_CLONE); |
3391 | odp_put_tnl_push_action(ctx->odp_actions, &tnl_push_data); | |
3392 | push_action_size = ctx->odp_actions->size; | |
3393 | ||
3394 | if (!truncate) { | |
3395 | const struct dpif_flow_stats *backup_resubmit_stats; | |
3396 | struct xlate_cache *backup_xcache; | |
3397 | struct flow_wildcards *backup_wc, wc; | |
3398 | bool backup_side_effects; | |
3399 | const struct dp_packet *backup_packet; | |
3400 | ||
3401 | memset(&wc, 0 , sizeof wc); | |
3402 | backup_wc = ctx->wc; | |
3403 | ctx->wc = &wc; | |
3404 | ctx->xin->wc = NULL; | |
3405 | backup_resubmit_stats = ctx->xin->resubmit_stats; | |
3406 | backup_xcache = ctx->xin->xcache; | |
3407 | backup_side_effects = ctx->xin->allow_side_effects; | |
3408 | backup_packet = ctx->xin->packet; | |
3409 | ||
3410 | ctx->xin->resubmit_stats = NULL; | |
3411 | ctx->xin->xcache = xlate_cache_new(); /* Use new temporary cache. */ | |
3412 | ctx->xin->allow_side_effects = false; | |
3413 | ctx->xin->packet = NULL; | |
3414 | ||
3415 | /* Push the cache entry for the tunnel first. */ | |
3416 | struct xc_entry *entry; | |
3417 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_TUNNEL_HEADER); | |
3418 | entry->tunnel_hdr.hdr_size = tnl_push_data.header_len; | |
3419 | entry->tunnel_hdr.operation = ADD; | |
3420 | ||
3421 | patch_port_output(ctx, xport, out_dev); | |
3422 | ||
3423 | /* Similar to the stats update in revalidation, the x_cache entries | |
3424 | * are populated by the previous translation are used to update the | |
3425 | * stats correctly. | |
7c12dfc5 | 3426 | */ |
11938578 AZ |
3427 | if (backup_resubmit_stats) { |
3428 | struct dpif_flow_stats stats = *backup_resubmit_stats; | |
3429 | xlate_push_stats(ctx->xin->xcache, &stats); | |
3430 | } | |
3431 | xlate_cache_steal_entries(backup_xcache, ctx->xin->xcache); | |
3432 | ||
3433 | if (ctx->odp_actions->size > push_action_size) { | |
3434 | nl_msg_end_non_empty_nested(ctx->odp_actions, clone_ofs); | |
3435 | } else { | |
3436 | nl_msg_cancel_nested(ctx->odp_actions, clone_ofs); | |
3437 | /* XXX : There is no real use-case for a tunnel push without | |
3438 | * any post actions. However keeping it now | |
3439 | * as is to make the 'make check' happy. Should remove when all the | |
3440 | * make check tunnel test case does something meaningful on a | |
3441 | * tunnel encap packets. | |
3442 | */ | |
3443 | odp_put_tnl_push_action(ctx->odp_actions, &tnl_push_data); | |
3444 | } | |
3445 | ||
3446 | /* Restore context status. */ | |
3447 | ctx->xin->resubmit_stats = backup_resubmit_stats; | |
3448 | xlate_cache_delete(ctx->xin->xcache); | |
3449 | ctx->xin->xcache = backup_xcache; | |
3450 | ctx->xin->allow_side_effects = backup_side_effects; | |
3451 | ctx->xin->packet = backup_packet; | |
3452 | ctx->wc = backup_wc; | |
3453 | } else { | |
3454 | /* In order to maintain accurate stats, use recirc for | |
3455 | * natvie tunneling. */ | |
7c12dfc5 SC |
3456 | nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_RECIRC, 0); |
3457 | nl_msg_end_nested(ctx->odp_actions, clone_ofs); | |
3458 | } | |
11938578 | 3459 | |
7c12dfc5 SC |
3460 | /* Restore the flows after the translation. */ |
3461 | memcpy(&ctx->xin->flow, &old_flow, sizeof ctx->xin->flow); | |
3462 | memcpy(&ctx->base_flow, &old_base_flow, sizeof ctx->base_flow); | |
245d88bc ZB |
3463 | |
3464 | /* Restore sFlow data. */ | |
3465 | ctx->sflow_n_outputs = sflow_n_outputs; | |
3466 | ||
a36de779 PS |
3467 | return 0; |
3468 | } | |
3469 | ||
704bb0bf JS |
3470 | static void |
3471 | xlate_commit_actions(struct xlate_ctx *ctx) | |
3472 | { | |
3473 | bool use_masked = ctx->xbridge->support.masked_set_action; | |
3474 | ||
3475 | ctx->xout->slow |= commit_odp_actions(&ctx->xin->flow, &ctx->base_flow, | |
3476 | ctx->odp_actions, ctx->wc, | |
1fc11c59 JS |
3477 | use_masked, ctx->pending_encap, |
3478 | ctx->encap_data); | |
f839892a | 3479 | ctx->pending_encap = false; |
1fc11c59 JS |
3480 | ofpbuf_delete(ctx->encap_data); |
3481 | ctx->encap_data = NULL; | |
704bb0bf JS |
3482 | } |
3483 | ||
07659514 | 3484 | static void |
72fe7578 | 3485 | clear_conntrack(struct xlate_ctx *ctx) |
07659514 | 3486 | { |
72fe7578 | 3487 | ctx->conntracked = false; |
6846e91e | 3488 | flow_clear_conntrack(&ctx->xin->flow); |
07659514 JS |
3489 | } |
3490 | ||
58d636ee BK |
3491 | static bool |
3492 | xlate_flow_is_protected(const struct xlate_ctx *ctx, const struct flow *flow, const struct xport *xport_out) | |
3493 | { | |
3494 | const struct xport *xport_in; | |
3495 | ||
3496 | if (!xport_out) { | |
3497 | return false; | |
3498 | } | |
3499 | ||
3500 | xport_in = get_ofp_port(ctx->xbridge, flow->in_port.ofp_port); | |
3501 | ||
3502 | return (xport_in && xport_in->xbundle && xport_out->xbundle && | |
3503 | xport_in->xbundle->protected && xport_out->xbundle->protected); | |
3504 | } | |
3505 | ||
48f704f4 | 3506 | /* Function handles when a packet is sent from one bridge to another bridge. |
8bdb2bdb | 3507 | * |
48f704f4 AZ |
3508 | * The bridges are internally connected, either with patch ports or with |
3509 | * tunnel ports. | |
3510 | * | |
3511 | * The output action to another bridge causes translation to continue within | |
3512 | * the next bridge. This process can be recursive; the next bridge can | |
3513 | * output yet to another bridge. | |
3514 | * | |
3515 | * The translated actions from the second bridge onwards are enclosed within | |
3516 | * the clone action, so that any modification to the packet will not be visible | |
3517 | * to the remaining actions of the originating bridge. | |
8bdb2bdb SC |
3518 | */ |
3519 | static void | |
48f704f4 AZ |
3520 | patch_port_output(struct xlate_ctx *ctx, const struct xport *in_dev, |
3521 | struct xport *out_dev) | |
8bdb2bdb SC |
3522 | { |
3523 | struct flow *flow = &ctx->xin->flow; | |
3524 | struct flow old_flow = ctx->xin->flow; | |
3525 | struct flow_tnl old_flow_tnl_wc = ctx->wc->masks.tunnel; | |
3526 | bool old_conntrack = ctx->conntracked; | |
3527 | bool old_was_mpls = ctx->was_mpls; | |
3528 | ovs_version_t old_version = ctx->xin->tables_version; | |
3529 | struct ofpbuf old_stack = ctx->stack; | |
3530 | uint8_t new_stack[1024]; | |
3531 | struct ofpbuf old_action_set = ctx->action_set; | |
3532 | struct ovs_list *old_trace = ctx->xin->trace; | |
3533 | uint64_t actset_stub[1024 / 8]; | |
3534 | ||
3535 | ofpbuf_use_stub(&ctx->stack, new_stack, sizeof new_stack); | |
3536 | ofpbuf_use_stub(&ctx->action_set, actset_stub, sizeof actset_stub); | |
3537 | flow->in_port.ofp_port = out_dev->ofp_port; | |
3538 | flow->metadata = htonll(0); | |
3539 | memset(&flow->tunnel, 0, sizeof flow->tunnel); | |
86bfb29a | 3540 | memset(&ctx->wc->masks.tunnel, 0, sizeof ctx->wc->masks.tunnel); |
8bdb2bdb SC |
3541 | flow->tunnel.metadata.tab = |
3542 | ofproto_get_tun_tab(&out_dev->xbridge->ofproto->up); | |
3543 | ctx->wc->masks.tunnel.metadata.tab = flow->tunnel.metadata.tab; | |
3544 | memset(flow->regs, 0, sizeof flow->regs); | |
3545 | flow->actset_output = OFPP_UNSET; | |
3546 | clear_conntrack(ctx); | |
3547 | ctx->xin->trace = xlate_report(ctx, OFT_BRIDGE, "bridge(\"%s\")", | |
3548 | out_dev->xbridge->name); | |
3549 | mirror_mask_t old_mirrors = ctx->mirrors; | |
3550 | bool independent_mirrors = out_dev->xbridge != ctx->xbridge; | |
3551 | if (independent_mirrors) { | |
3552 | ctx->mirrors = 0; | |
3553 | } | |
3554 | ctx->xbridge = out_dev->xbridge; | |
3555 | ||
3556 | /* The bridge is now known so obtain its table version. */ | |
3557 | ctx->xin->tables_version | |
3558 | = ofproto_dpif_get_tables_version(ctx->xbridge->ofproto); | |
3559 | ||
3560 | if (!process_special(ctx, out_dev) && may_receive(out_dev, ctx)) { | |
3561 | if (xport_stp_forward_state(out_dev) && | |
3562 | xport_rstp_forward_state(out_dev)) { | |
3563 | xlate_table_action(ctx, flow->in_port.ofp_port, 0, true, true, | |
96c3a6e5 | 3564 | false, true, clone_xlate_actions); |
8bdb2bdb SC |
3565 | if (!ctx->freezing) { |
3566 | xlate_action_set(ctx); | |
3567 | } | |
3568 | if (ctx->freezing) { | |
3569 | finish_freezing(ctx); | |
3570 | } | |
3571 | } else { | |
3572 | /* Forwarding is disabled by STP and RSTP. Let OFPP_NORMAL and | |
3573 | * the learning action look at the packet, then drop it. */ | |
3574 | struct flow old_base_flow = ctx->base_flow; | |
3575 | size_t old_size = ctx->odp_actions->size; | |
3576 | mirror_mask_t old_mirrors2 = ctx->mirrors; | |
3577 | ||
3578 | xlate_table_action(ctx, flow->in_port.ofp_port, 0, true, true, | |
96c3a6e5 | 3579 | false, true, clone_xlate_actions); |
8bdb2bdb SC |
3580 | ctx->mirrors = old_mirrors2; |
3581 | ctx->base_flow = old_base_flow; | |
3582 | ctx->odp_actions->size = old_size; | |
3583 | ||
3584 | /* Undo changes that may have been done for freezing. */ | |
3585 | ctx_cancel_freeze(ctx); | |
3586 | } | |
3587 | } | |
3588 | ||
3589 | ctx->xin->trace = old_trace; | |
3590 | if (independent_mirrors) { | |
3591 | ctx->mirrors = old_mirrors; | |
3592 | } | |
3593 | ctx->xin->flow = old_flow; | |
3594 | ctx->xbridge = in_dev->xbridge; | |
3595 | ofpbuf_uninit(&ctx->action_set); | |
3596 | ctx->action_set = old_action_set; | |
3597 | ofpbuf_uninit(&ctx->stack); | |
3598 | ctx->stack = old_stack; | |
3599 | ||
3600 | /* Restore calling bridge's lookup version. */ | |
3601 | ctx->xin->tables_version = old_version; | |
3602 | ||
3603 | /* Restore to calling bridge tunneling information */ | |
3604 | ctx->wc->masks.tunnel = old_flow_tnl_wc; | |
3605 | ||
3606 | /* The out bridge popping MPLS should have no effect on the original | |
3607 | * bridge. */ | |
3608 | ctx->was_mpls = old_was_mpls; | |
3609 | ||
3610 | /* The out bridge's conntrack execution should have no effect on the | |
3611 | * original bridge. */ | |
3612 | ctx->conntracked = old_conntrack; | |
3613 | ||
3614 | /* The fact that the out bridge exits (for any reason) does not mean | |
3615 | * that the original bridge should exit. Specifically, if the out | |
3616 | * bridge freezes translation, the original bridge must continue | |
3617 | * processing with the original, not the frozen packet! */ | |
3618 | ctx->exit = false; | |
3619 | ||
3620 | /* Out bridge errors do not propagate back. */ | |
3621 | ctx->error = XLATE_OK; | |
3622 | ||
3623 | if (ctx->xin->resubmit_stats) { | |
3624 | netdev_vport_inc_tx(in_dev->netdev, ctx->xin->resubmit_stats); | |
3625 | netdev_vport_inc_rx(out_dev->netdev, ctx->xin->resubmit_stats); | |
3626 | if (out_dev->bfd) { | |
3627 | bfd_account_rx(out_dev->bfd, ctx->xin->resubmit_stats); | |
3628 | } | |
3629 | } | |
3630 | if (ctx->xin->xcache) { | |
3631 | struct xc_entry *entry; | |
3632 | ||
3633 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_NETDEV); | |
3634 | entry->dev.tx = netdev_ref(in_dev->netdev); | |
3635 | entry->dev.rx = netdev_ref(out_dev->netdev); | |
3636 | entry->dev.bfd = bfd_ref(out_dev->bfd); | |
3637 | } | |
3638 | } | |
3639 | ||
081617f0 JS |
3640 | static bool |
3641 | check_output_prerequisites(struct xlate_ctx *ctx, | |
3642 | const struct xport *xport, | |
3643 | struct flow *flow, | |
3644 | bool check_stp) | |
9583bc14 | 3645 | { |
49a73e0c | 3646 | struct flow_wildcards *wc = ctx->wc; |
9583bc14 | 3647 | |
46c88433 | 3648 | if (!xport) { |
2d9b49dd | 3649 | xlate_report(ctx, OFT_WARN, "Nonexistent output port"); |
081617f0 | 3650 | return false; |
46c88433 | 3651 | } else if (xport->config & OFPUTIL_PC_NO_FWD) { |
2d9b49dd | 3652 | xlate_report(ctx, OFT_DETAIL, "OFPPC_NO_FWD set, skipping output"); |
081617f0 | 3653 | return false; |
1356dbd1 | 3654 | } else if (ctx->mirror_snaplen != 0 && xport->odp_port == ODPP_NONE) { |
2d9b49dd BP |
3655 | xlate_report(ctx, OFT_WARN, |
3656 | "Mirror truncate to ODPP_NONE, skipping output"); | |
081617f0 | 3657 | return false; |
58d636ee | 3658 | } else if (xlate_flow_is_protected(ctx, flow, xport)) { |
2d9b49dd BP |
3659 | xlate_report(ctx, OFT_WARN, |
3660 | "Flow is between protected ports, skipping output."); | |
081617f0 | 3661 | return false; |
0d1cee12 | 3662 | } else if (check_stp) { |
bbbca389 | 3663 | if (is_stp(&ctx->base_flow)) { |
9efd308e DV |
3664 | if (!xport_stp_should_forward_bpdu(xport) && |
3665 | !xport_rstp_should_manage_bpdu(xport)) { | |
3666 | if (ctx->xbridge->stp != NULL) { | |
2d9b49dd BP |
3667 | xlate_report(ctx, OFT_WARN, |
3668 | "STP not in listening state, " | |
3669 | "skipping bpdu output"); | |
9efd308e | 3670 | } else if (ctx->xbridge->rstp != NULL) { |
2d9b49dd BP |
3671 | xlate_report(ctx, OFT_WARN, |
3672 | "RSTP not managing BPDU in this state, " | |
3673 | "skipping bpdu output"); | |
9efd308e | 3674 | } |
081617f0 | 3675 | return false; |
0d1cee12 | 3676 | } |
67818616 MV |
3677 | } else if ((xport->cfm && cfm_should_process_flow(xport->cfm, flow, wc)) |
3678 | || (xport->bfd && bfd_should_process_flow(xport->bfd, flow, | |
3679 | wc))) { | |
3680 | /* Pass; STP should not block link health detection. */ | |
9efd308e DV |
3681 | } else if (!xport_stp_forward_state(xport) || |
3682 | !xport_rstp_forward_state(xport)) { | |
3683 | if (ctx->xbridge->stp != NULL) { | |
2d9b49dd BP |
3684 | xlate_report(ctx, OFT_WARN, |
3685 | "STP not in forwarding state, skipping output"); | |
9efd308e | 3686 | } else if (ctx->xbridge->rstp != NULL) { |
2d9b49dd BP |
3687 | xlate_report(ctx, OFT_WARN, |
3688 | "RSTP not in forwarding state, skipping output"); | |
9efd308e | 3689 | } |
081617f0 | 3690 | return false; |
0d1cee12 | 3691 | } |
9583bc14 | 3692 | } |
5dbfe239 ZB |
3693 | |
3694 | if (xport->pt_mode == NETDEV_PT_LEGACY_L2 && | |
3695 | flow->packet_type != htonl(PT_ETH)) { | |
3696 | xlate_report(ctx, OFT_WARN, "Trying to send non-Ethernet packet " | |
3697 | "through legacy L2 port. Dropping packet."); | |
3698 | return false; | |
3699 | } | |
3700 | ||
081617f0 JS |
3701 | return true; |
3702 | } | |
3703 | ||
3704 | static bool | |
3705 | terminate_native_tunnel(struct xlate_ctx *ctx, ofp_port_t ofp_port, | |
3706 | struct flow *flow, struct flow_wildcards *wc, | |
3707 | odp_port_t *tnl_port) | |
3708 | { | |
3709 | *tnl_port = ODPP_NONE; | |
3710 | ||
3711 | /* XXX: Write better Filter for tunnel port. We can use in_port | |
3712 | * in tunnel-port flow to avoid these checks completely. */ | |
3713 | if (ofp_port == OFPP_LOCAL && | |
3714 | ovs_native_tunneling_is_on(ctx->xbridge->ofproto)) { | |
3715 | *tnl_port = tnl_port_map_lookup(flow, wc); | |
3716 | } | |
3717 | ||
3718 | return *tnl_port != ODPP_NONE; | |
3719 | } | |
3720 | ||
3721 | static void | |
3722 | compose_output_action__(struct xlate_ctx *ctx, ofp_port_t ofp_port, | |
feee58b9 | 3723 | const struct xlate_bond_recirc *xr, bool check_stp, |
11938578 | 3724 | bool is_last_action OVS_UNUSED, bool truncate) |
081617f0 JS |
3725 | { |
3726 | const struct xport *xport = get_ofp_port(ctx->xbridge, ofp_port); | |
3727 | struct flow_wildcards *wc = ctx->wc; | |
3728 | struct flow *flow = &ctx->xin->flow; | |
3729 | struct flow_tnl flow_tnl; | |
3730 | union flow_vlan_hdr flow_vlans[FLOW_MAX_VLAN_HEADERS]; | |
3731 | uint8_t flow_nw_tos; | |
3732 | odp_port_t out_port, odp_port, odp_tnl_port; | |
3733 | bool is_native_tunnel = false; | |
3734 | uint8_t dscp; | |
5dbfe239 ZB |
3735 | struct eth_addr flow_dl_dst = flow->dl_dst; |
3736 | struct eth_addr flow_dl_src = flow->dl_src; | |
3737 | ovs_be32 flow_packet_type = flow->packet_type; | |
3738 | ovs_be16 flow_dl_type = flow->dl_type; | |
081617f0 JS |
3739 | |
3740 | /* If 'struct flow' gets additional metadata, we'll need to zero it out | |
3741 | * before traversing a patch port. */ | |
3d2fbd70 | 3742 | BUILD_ASSERT_DECL(FLOW_WC_SEQ == 40); |
081617f0 JS |
3743 | memset(&flow_tnl, 0, sizeof flow_tnl); |
3744 | ||
3745 | if (!check_output_prerequisites(ctx, xport, flow, check_stp)) { | |
3746 | return; | |
3747 | } | |
9583bc14 | 3748 | |
875ab130 BP |
3749 | if (flow->packet_type == htonl(PT_ETH)) { |
3750 | /* Strip Ethernet header for legacy L3 port. */ | |
3751 | if (xport->pt_mode == NETDEV_PT_LEGACY_L3) { | |
3752 | flow->packet_type = PACKET_TYPE_BE(OFPHTN_ETHERTYPE, | |
3753 | ntohs(flow->dl_type)); | |
3754 | } | |
beb75a40 JS |
3755 | } |
3756 | ||
46c88433 | 3757 | if (xport->peer) { |
5cb92182 BP |
3758 | if (truncate) { |
3759 | xlate_report_error(ctx, "Cannot truncate output to patch port"); | |
3760 | } | |
48f704f4 | 3761 | patch_port_output(ctx, xport, xport->peer); |
8bdb2bdb | 3762 | return; |
9583bc14 EJ |
3763 | } |
3764 | ||
f0fb825a | 3765 | memcpy(flow_vlans, flow->vlans, sizeof flow_vlans); |
33bf9176 | 3766 | flow_nw_tos = flow->nw_tos; |
9583bc14 | 3767 | |
16194afd DDP |
3768 | if (count_skb_priorities(xport)) { |
3769 | memset(&wc->masks.skb_priority, 0xff, sizeof wc->masks.skb_priority); | |
3770 | if (dscp_from_skb_priority(xport, flow->skb_priority, &dscp)) { | |
3771 | wc->masks.nw_tos |= IP_DSCP_MASK; | |
3772 | flow->nw_tos &= ~IP_DSCP_MASK; | |
3773 | flow->nw_tos |= dscp; | |
3774 | } | |
9583bc14 EJ |
3775 | } |
3776 | ||
46c88433 | 3777 | if (xport->is_tunnel) { |
c2b878e0 | 3778 | struct in6_addr dst; |
9583bc14 EJ |
3779 | /* Save tunnel metadata so that changes made due to |
3780 | * the Logical (tunnel) Port are not visible for any further | |
3781 | * matches, while explicit set actions on tunnel metadata are. | |
3782 | */ | |
a36de779 | 3783 | flow_tnl = flow->tunnel; |
49a73e0c | 3784 | odp_port = tnl_port_send(xport->ofport, flow, ctx->wc); |
4e022ec0 | 3785 | if (odp_port == ODPP_NONE) { |
2d9b49dd | 3786 | xlate_report(ctx, OFT_WARN, "Tunneling decided against output"); |
9583bc14 EJ |
3787 | goto out; /* restore flow_nw_tos */ |
3788 | } | |
c2b878e0 TLSC |
3789 | dst = flow_tnl_dst(&flow->tunnel); |
3790 | if (ipv6_addr_equals(&dst, &ctx->orig_tunnel_ipv6_dst)) { | |
2d9b49dd | 3791 | xlate_report(ctx, OFT_WARN, "Not tunneling to our own address"); |
9583bc14 EJ |
3792 | goto out; /* restore flow_nw_tos */ |
3793 | } | |
3794 | if (ctx->xin->resubmit_stats) { | |
46c88433 | 3795 | netdev_vport_inc_tx(xport->netdev, ctx->xin->resubmit_stats); |
9583bc14 | 3796 | } |
b256dc52 JS |
3797 | if (ctx->xin->xcache) { |
3798 | struct xc_entry *entry; | |
3799 | ||
3800 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_NETDEV); | |
901a517e | 3801 | entry->dev.tx = netdev_ref(xport->netdev); |
b256dc52 | 3802 | } |
9583bc14 | 3803 | out_port = odp_port; |
a36de779 | 3804 | if (ovs_native_tunneling_is_on(ctx->xbridge->ofproto)) { |
2d9b49dd | 3805 | xlate_report(ctx, OFT_DETAIL, "output to native tunnel"); |
081617f0 | 3806 | is_native_tunnel = true; |
a36de779 | 3807 | } else { |
2d9b49dd | 3808 | xlate_report(ctx, OFT_DETAIL, "output to kernel tunnel"); |
1520ef4f | 3809 | commit_odp_tunnel_action(flow, &ctx->base_flow, ctx->odp_actions); |
a36de779 PS |
3810 | flow->tunnel = flow_tnl; /* Restore tunnel metadata */ |
3811 | } | |
9583bc14 | 3812 | } else { |
46c88433 | 3813 | odp_port = xport->odp_port; |
7614e5d0 | 3814 | out_port = odp_port; |
9583bc14 | 3815 | } |
9583bc14 | 3816 | |
4e022ec0 | 3817 | if (out_port != ODPP_NONE) { |
081617f0 | 3818 | /* Commit accumulated flow updates before output. */ |
704bb0bf | 3819 | xlate_commit_actions(ctx); |
adcf00ba | 3820 | |
e93ef1c7 | 3821 | if (xr) { |
081617f0 | 3822 | /* Recirculate the packet. */ |
347bf289 | 3823 | struct ovs_action_hash *act_hash; |
adcf00ba | 3824 | |
347bf289 | 3825 | /* Hash action. */ |
1520ef4f | 3826 | act_hash = nl_msg_put_unspec_uninit(ctx->odp_actions, |
347bf289 AZ |
3827 | OVS_ACTION_ATTR_HASH, |
3828 | sizeof *act_hash); | |
3829 | act_hash->hash_alg = xr->hash_alg; | |
62ac1f20 | 3830 | act_hash->hash_basis = xr->hash_basis; |
347bf289 AZ |
3831 | |
3832 | /* Recirc action. */ | |
1520ef4f | 3833 | nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_RECIRC, |
347bf289 | 3834 | xr->recirc_id); |
081617f0 JS |
3835 | } else if (is_native_tunnel) { |
3836 | /* Output to native tunnel port. */ | |
11938578 | 3837 | native_tunnel_output(ctx, xport, flow, odp_port, truncate); |
081617f0 | 3838 | flow->tunnel = flow_tnl; /* Restore tunnel metadata */ |
a36de779 | 3839 | |
081617f0 JS |
3840 | } else if (terminate_native_tunnel(ctx, ofp_port, flow, wc, |
3841 | &odp_tnl_port)) { | |
3842 | /* Intercept packet to be received on native tunnel port. */ | |
3843 | nl_msg_put_odp_port(ctx->odp_actions, OVS_ACTION_ATTR_TUNNEL_POP, | |
3844 | odp_tnl_port); | |
a36de779 | 3845 | |
081617f0 JS |
3846 | } else { |
3847 | /* Tunnel push-pop action is not compatible with | |
3848 | * IPFIX action. */ | |
3849 | compose_ipfix_action(ctx, out_port); | |
3850 | ||
3851 | /* Handle truncation of the mirrored packet. */ | |
3852 | if (ctx->mirror_snaplen > 0 && | |
3853 | ctx->mirror_snaplen < UINT16_MAX) { | |
3854 | struct ovs_action_trunc *trunc; | |
3855 | ||
3856 | trunc = nl_msg_put_unspec_uninit(ctx->odp_actions, | |
3857 | OVS_ACTION_ATTR_TRUNC, | |
3858 | sizeof *trunc); | |
3859 | trunc->max_len = ctx->mirror_snaplen; | |
3860 | if (!ctx->xbridge->support.trunc) { | |
3861 | ctx->xout->slow |= SLOW_ACTION; | |
1356dbd1 WT |
3862 | } |
3863 | } | |
081617f0 JS |
3864 | |
3865 | nl_msg_put_odp_port(ctx->odp_actions, | |
3866 | OVS_ACTION_ATTR_OUTPUT, | |
3867 | out_port); | |
adcf00ba | 3868 | } |
9583bc14 | 3869 | |
6cbbf4fa EJ |
3870 | ctx->sflow_odp_port = odp_port; |
3871 | ctx->sflow_n_outputs++; | |
2031ef97 | 3872 | ctx->nf_output_iface = ofp_port; |
6cbbf4fa EJ |
3873 | } |
3874 | ||
7efbc3b7 BP |
3875 | if (mbridge_has_mirrors(ctx->xbridge->mbridge) && xport->xbundle) { |
3876 | mirror_packet(ctx, xport->xbundle, | |
3877 | xbundle_mirror_dst(xport->xbundle->xbridge, | |
3878 | xport->xbundle)); | |
3879 | } | |
3880 | ||
6cbbf4fa | 3881 | out: |
9583bc14 | 3882 | /* Restore flow */ |
f0fb825a | 3883 | memcpy(flow->vlans, flow_vlans, sizeof flow->vlans); |
33bf9176 | 3884 | flow->nw_tos = flow_nw_tos; |
5dbfe239 ZB |
3885 | flow->dl_dst = flow_dl_dst; |
3886 | flow->dl_src = flow_dl_src; | |
3887 | flow->packet_type = flow_packet_type; | |
3888 | flow->dl_type = flow_dl_type; | |
9583bc14 EJ |
3889 | } |
3890 | ||
3891 | static void | |
e93ef1c7 | 3892 | compose_output_action(struct xlate_ctx *ctx, ofp_port_t ofp_port, |
feee58b9 | 3893 | const struct xlate_bond_recirc *xr, |
11938578 | 3894 | bool is_last_action, bool truncate) |
9583bc14 | 3895 | { |
11938578 AZ |
3896 | compose_output_action__(ctx, ofp_port, xr, true, |
3897 | is_last_action, truncate); | |
9583bc14 EJ |
3898 | } |
3899 | ||
bb61b33d | 3900 | static void |
feee58b9 | 3901 | xlate_recursively(struct xlate_ctx *ctx, struct rule_dpif *rule, |
96c3a6e5 AZ |
3902 | bool deepens, bool is_last_action, |
3903 | xlate_actions_handler *actions_xlator) | |
bb61b33d BP |
3904 | { |
3905 | struct rule_dpif *old_rule = ctx->rule; | |
8b1e5560 | 3906 | ovs_be64 old_cookie = ctx->rule_cookie; |
dc723c44 | 3907 | const struct rule_actions *actions; |
bb61b33d BP |
3908 | |
3909 | if (ctx->xin->resubmit_stats) { | |
70742c7f | 3910 | rule_dpif_credit_stats(rule, ctx->xin->resubmit_stats); |
bb61b33d BP |
3911 | } |
3912 | ||
98b07853 | 3913 | ctx->resubmits++; |
790c5d26 | 3914 | |
790c5d26 | 3915 | ctx->depth += deepens; |
bb61b33d | 3916 | ctx->rule = rule; |
07a3cd5c BP |
3917 | ctx->rule_cookie = rule->up.flow_cookie; |
3918 | actions = rule_get_actions(&rule->up); | |
96c3a6e5 AZ |
3919 | actions_xlator(actions->ofpacts, actions->ofpacts_len, ctx, |
3920 | is_last_action); | |
8b1e5560 | 3921 | ctx->rule_cookie = old_cookie; |
bb61b33d | 3922 | ctx->rule = old_rule; |
790c5d26 | 3923 | ctx->depth -= deepens; |
bb61b33d BP |
3924 | } |
3925 | ||
bd3240ba SH |
3926 | static bool |
3927 | xlate_resubmit_resource_check(struct xlate_ctx *ctx) | |
9583bc14 | 3928 | { |
790c5d26 | 3929 | if (ctx->depth >= MAX_DEPTH) { |
2d9b49dd | 3930 | xlate_report_error(ctx, "over max translation depth %d", MAX_DEPTH); |
fff1b9c0 | 3931 | ctx->error = XLATE_RECURSION_TOO_DEEP; |
790c5d26 | 3932 | } else if (ctx->resubmits >= MAX_RESUBMITS) { |
2d9b49dd | 3933 | xlate_report_error(ctx, "over %d resubmit actions", MAX_RESUBMITS); |
fff1b9c0 | 3934 | ctx->error = XLATE_TOO_MANY_RESUBMITS; |
1520ef4f | 3935 | } else if (ctx->odp_actions->size > UINT16_MAX) { |
2d9b49dd | 3936 | xlate_report_error(ctx, "resubmits yielded over 64 kB of actions"); |
fff1b9c0 JR |
3937 | /* NOT an error, as we'll be slow-pathing the flow in this case? */ |
3938 | ctx->exit = true; /* XXX: translation still terminated! */ | |
6fd6ed71 | 3939 | } else if (ctx->stack.size >= 65536) { |
2d9b49dd | 3940 | xlate_report_error(ctx, "resubmits yielded over 64 kB of stack"); |
fff1b9c0 | 3941 | ctx->error = XLATE_STACK_TOO_DEEP; |
98b07853 | 3942 | } else { |
bd3240ba SH |
3943 | return true; |
3944 | } | |
3945 | ||
3946 | return false; | |
3947 | } | |
3948 | ||
2cd20955 JR |
3949 | static void |
3950 | tuple_swap_flow(struct flow *flow, bool ipv4) | |
3951 | { | |
3952 | uint8_t nw_proto = flow->nw_proto; | |
3953 | flow->nw_proto = flow->ct_nw_proto; | |
3954 | flow->ct_nw_proto = nw_proto; | |
3955 | ||
3956 | if (ipv4) { | |
3957 | ovs_be32 nw_src = flow->nw_src; | |
3958 | flow->nw_src = flow->ct_nw_src; | |
3959 | flow->ct_nw_src = nw_src; | |
3960 | ||
3961 | ovs_be32 nw_dst = flow->nw_dst; | |
3962 | flow->nw_dst = flow->ct_nw_dst; | |
3963 | flow->ct_nw_dst = nw_dst; | |
3964 | } else { | |
3965 | struct in6_addr ipv6_src = flow->ipv6_src; | |
3966 | flow->ipv6_src = flow->ct_ipv6_src; | |
3967 | flow->ct_ipv6_src = ipv6_src; | |
3968 | ||
3969 | struct in6_addr ipv6_dst = flow->ipv6_dst; | |
3970 | flow->ipv6_dst = flow->ct_ipv6_dst; | |
3971 | flow->ct_ipv6_dst = ipv6_dst; | |
3972 | } | |
3973 | ||
3974 | ovs_be16 tp_src = flow->tp_src; | |
3975 | flow->tp_src = flow->ct_tp_src; | |
3976 | flow->ct_tp_src = tp_src; | |
3977 | ||
3978 | ovs_be16 tp_dst = flow->tp_dst; | |
3979 | flow->tp_dst = flow->ct_tp_dst; | |
3980 | flow->ct_tp_dst = tp_dst; | |
3981 | } | |
3982 | ||
3983 | static void | |
3984 | tuple_swap(struct flow *flow, struct flow_wildcards *wc) | |
3985 | { | |
3986 | bool ipv4 = (flow->dl_type == htons(ETH_TYPE_IP)); | |
3987 | ||
3988 | tuple_swap_flow(flow, ipv4); | |
3989 | tuple_swap_flow(&wc->masks, ipv4); | |
3990 | } | |
3991 | ||
bd3240ba | 3992 | static void |
6d328fa2 | 3993 | xlate_table_action(struct xlate_ctx *ctx, ofp_port_t in_port, uint8_t table_id, |
2cd20955 | 3994 | bool may_packet_in, bool honor_table_miss, |
96c3a6e5 AZ |
3995 | bool with_ct_orig, bool is_last_action, |
3996 | xlate_actions_handler *xlator) | |
bd3240ba | 3997 | { |
e12ec36b SH |
3998 | /* Check if we need to recirculate before matching in a table. */ |
3999 | if (ctx->was_mpls) { | |
4000 | ctx_trigger_freeze(ctx); | |
4001 | return; | |
4002 | } | |
bd3240ba | 4003 | if (xlate_resubmit_resource_check(ctx)) { |
9583bc14 | 4004 | uint8_t old_table_id = ctx->table_id; |
3f207910 | 4005 | struct rule_dpif *rule; |
9583bc14 EJ |
4006 | |
4007 | ctx->table_id = table_id; | |
4008 | ||
2cd20955 JR |
4009 | /* Swap packet fields with CT 5-tuple if requested. */ |
4010 | if (with_ct_orig) { | |
4011 | /* Do not swap if there is no CT tuple, or if key is not IP. */ | |
4012 | if (ctx->xin->flow.ct_nw_proto == 0 || | |
4013 | !is_ip_any(&ctx->xin->flow)) { | |
4014 | xlate_report_error(ctx, | |
4015 | "resubmit(ct) with non-tracked or non-IP packet!"); | |
4016 | return; | |
4017 | } | |
4018 | tuple_swap(&ctx->xin->flow, ctx->wc); | |
4019 | } | |
34dd0d78 | 4020 | rule = rule_dpif_lookup_from_table(ctx->xbridge->ofproto, |
1f4a8933 | 4021 | ctx->xin->tables_version, |
c0e638aa | 4022 | &ctx->xin->flow, ctx->wc, |
34dd0d78 JR |
4023 | ctx->xin->resubmit_stats, |
4024 | &ctx->table_id, in_port, | |
a027899e JR |
4025 | may_packet_in, honor_table_miss, |
4026 | ctx->xin->xcache); | |
2cd20955 JR |
4027 | /* Swap back. */ |
4028 | if (with_ct_orig) { | |
4029 | tuple_swap(&ctx->xin->flow, ctx->wc); | |
4030 | } | |
ad3efdcb | 4031 | |
a2143702 | 4032 | if (rule) { |
83709dfa JR |
4033 | /* Fill in the cache entry here instead of xlate_recursively |
4034 | * to make the reference counting more explicit. We take a | |
4035 | * reference in the lookups above if we are going to cache the | |
4036 | * rule. */ | |
4037 | if (ctx->xin->xcache) { | |
4038 | struct xc_entry *entry; | |
4039 | ||
4040 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_RULE); | |
901a517e | 4041 | entry->rule = rule; |
07a3cd5c | 4042 | ofproto_rule_ref(&rule->up); |
83709dfa | 4043 | } |
2d9b49dd BP |
4044 | |
4045 | struct ovs_list *old_trace = ctx->xin->trace; | |
4046 | xlate_report_table(ctx, rule, table_id); | |
feee58b9 | 4047 | xlate_recursively(ctx, rule, table_id <= old_table_id, |
96c3a6e5 | 4048 | is_last_action, xlator); |
2d9b49dd | 4049 | ctx->xin->trace = old_trace; |
ad3efdcb EJ |
4050 | } |
4051 | ||
9583bc14 | 4052 | ctx->table_id = old_table_id; |
98b07853 | 4053 | return; |
9583bc14 EJ |
4054 | } |
4055 | } | |
4056 | ||
76973237 | 4057 | /* Consumes the group reference, which is only taken if xcache exists. */ |
f4fb341b | 4058 | static void |
1e684d7d RW |
4059 | xlate_group_stats(struct xlate_ctx *ctx, struct group_dpif *group, |
4060 | struct ofputil_bucket *bucket) | |
4061 | { | |
4062 | if (ctx->xin->resubmit_stats) { | |
4063 | group_dpif_credit_stats(group, bucket, ctx->xin->resubmit_stats); | |
4064 | } | |
4065 | if (ctx->xin->xcache) { | |
4066 | struct xc_entry *entry; | |
4067 | ||
4068 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_GROUP); | |
901a517e JR |
4069 | entry->group.group = group; |
4070 | entry->group.bucket = bucket; | |
1e684d7d RW |
4071 | } |
4072 | } | |
4073 | ||
4074 | static void | |
feee58b9 AZ |
4075 | xlate_group_bucket(struct xlate_ctx *ctx, struct ofputil_bucket *bucket, |
4076 | bool is_last_action) | |
f4fb341b SH |
4077 | { |
4078 | uint64_t action_list_stub[1024 / 8]; | |
0a2869d5 BP |
4079 | struct ofpbuf action_list = OFPBUF_STUB_INITIALIZER(action_list_stub); |
4080 | struct ofpbuf action_set = ofpbuf_const_initializer(bucket->ofpacts, | |
4081 | bucket->ofpacts_len); | |
5b09e569 | 4082 | struct flow old_flow = ctx->xin->flow; |
e12ec36b | 4083 | bool old_was_mpls = ctx->was_mpls; |
f4fb341b | 4084 | |
f4fb341b | 4085 | ofpacts_execute_action_set(&action_list, &action_set); |
790c5d26 | 4086 | ctx->depth++; |
feee58b9 | 4087 | do_xlate_actions(action_list.data, action_list.size, ctx, is_last_action); |
790c5d26 | 4088 | ctx->depth--; |
f4fb341b | 4089 | |
f4fb341b | 4090 | ofpbuf_uninit(&action_list); |
5b09e569 | 4091 | |
77ab5fd2 | 4092 | /* Check if need to freeze. */ |
1d361a81 | 4093 | if (ctx->freezing) { |
77ab5fd2 | 4094 | finish_freezing(ctx); |
e672ff9b JR |
4095 | } |
4096 | ||
5b09e569 JR |
4097 | /* Roll back flow to previous state. |
4098 | * This is equivalent to cloning the packet for each bucket. | |
4099 | * | |
4100 | * As a side effect any subsequently applied actions will | |
4101 | * also effectively be applied to a clone of the packet taken | |
4102 | * just before applying the all or indirect group. | |
4103 | * | |
4104 | * Note that group buckets are action sets, hence they cannot modify the | |
4105 | * main action set. Also any stack actions are ignored when executing an | |
4106 | * action set, so group buckets cannot change the stack either. | |
4107 | * However, we do allow resubmit actions in group buckets, which could | |
4108 | * break the above assumptions. It is up to the controller to not mess up | |
4109 | * with the action_set and stack in the tables resubmitted to from | |
4110 | * group buckets. */ | |
4111 | ctx->xin->flow = old_flow; | |
4112 | ||
e12ec36b SH |
4113 | /* The group bucket popping MPLS should have no effect after bucket |
4114 | * execution. */ | |
4115 | ctx->was_mpls = old_was_mpls; | |
4116 | ||
5b09e569 JR |
4117 | /* The fact that the group bucket exits (for any reason) does not mean that |
4118 | * the translation after the group action should exit. Specifically, if | |
1d361a81 BP |
4119 | * the group bucket freezes translation, the actions after the group action |
4120 | * must continue processing with the original, not the frozen packet! */ | |
5b09e569 | 4121 | ctx->exit = false; |
b99654b0 VDA |
4122 | |
4123 | /* Context error in a bucket should not impact processing of other buckets | |
4124 | * or actions. This is similar to cloning a packet for group buckets. | |
4125 | * There is no need to restore the error back to old value due to the fact | |
4126 | * that we actually processed group action which can happen only when there | |
4127 | * is no previous context error. | |
4128 | * | |
4129 | * Exception to above is errors which are system limits to protect | |
4130 | * translation from running too long or occupy too much space. These errors | |
4131 | * should not be masked. XLATE_RECURSION_TOO_DEEP, XLATE_TOO_MANY_RESUBMITS | |
4132 | * and XLATE_STACK_TOO_DEEP fall in this category. */ | |
4133 | if (ctx->error == XLATE_TOO_MANY_MPLS_LABELS || | |
4134 | ctx->error == XLATE_UNSUPPORTED_PACKET_TYPE) { | |
4135 | /* reset the error and continue processing other buckets */ | |
4136 | ctx->error = XLATE_OK; | |
4137 | } | |
f4fb341b SH |
4138 | } |
4139 | ||
4140 | static void | |
feee58b9 AZ |
4141 | xlate_all_group(struct xlate_ctx *ctx, struct group_dpif *group, |
4142 | bool is_last_action) | |
f4fb341b | 4143 | { |
1e684d7d | 4144 | struct ofputil_bucket *bucket; |
07a3cd5c | 4145 | LIST_FOR_EACH (bucket, list_node, &group->up.buckets) { |
feee58b9 AZ |
4146 | bool last = is_last_action && !bucket->list_node.next; |
4147 | xlate_group_bucket(ctx, bucket, last); | |
f4fb341b | 4148 | } |
1e684d7d | 4149 | xlate_group_stats(ctx, group, NULL); |
f4fb341b SH |
4150 | } |
4151 | ||
dd8cd4b4 | 4152 | static void |
feee58b9 AZ |
4153 | xlate_ff_group(struct xlate_ctx *ctx, struct group_dpif *group, |
4154 | bool is_last_action) | |
dd8cd4b4 | 4155 | { |
1e684d7d | 4156 | struct ofputil_bucket *bucket; |
dd8cd4b4 SH |
4157 | |
4158 | bucket = group_first_live_bucket(ctx, group, 0); | |
4159 | if (bucket) { | |
feee58b9 | 4160 | xlate_group_bucket(ctx, bucket, is_last_action); |
1e684d7d | 4161 | xlate_group_stats(ctx, group, bucket); |
76973237 | 4162 | } else if (ctx->xin->xcache) { |
07a3cd5c | 4163 | ofproto_group_unref(&group->up); |
dd8cd4b4 SH |
4164 | } |
4165 | } | |
4166 | ||
fe7e5749 | 4167 | static void |
feee58b9 AZ |
4168 | xlate_default_select_group(struct xlate_ctx *ctx, struct group_dpif *group, |
4169 | bool is_last_action) | |
fe7e5749 | 4170 | { |
49a73e0c | 4171 | struct flow_wildcards *wc = ctx->wc; |
1e684d7d | 4172 | struct ofputil_bucket *bucket; |
fe7e5749 SH |
4173 | uint32_t basis; |
4174 | ||
1d1aae0b | 4175 | basis = flow_hash_symmetric_l4(&ctx->xin->flow, 0); |
80e3509d | 4176 | flow_mask_hash_fields(&ctx->xin->flow, wc, NX_HASH_FIELDS_SYMMETRIC_L4); |
fe7e5749 SH |
4177 | bucket = group_best_live_bucket(ctx, group, basis); |
4178 | if (bucket) { | |
feee58b9 | 4179 | xlate_group_bucket(ctx, bucket, is_last_action); |
1e684d7d | 4180 | xlate_group_stats(ctx, group, bucket); |
76973237 | 4181 | } else if (ctx->xin->xcache) { |
07a3cd5c | 4182 | ofproto_group_unref(&group->up); |
fe7e5749 SH |
4183 | } |
4184 | } | |
4185 | ||
0c4b9393 | 4186 | static void |
feee58b9 AZ |
4187 | xlate_hash_fields_select_group(struct xlate_ctx *ctx, struct group_dpif *group, |
4188 | bool is_last_action) | |
0c4b9393 | 4189 | { |
07a3cd5c BP |
4190 | const struct field_array *fields = &group->up.props.fields; |
4191 | const uint8_t *mask_values = fields->values; | |
4192 | uint32_t basis = hash_uint64(group->up.props.selection_method_param); | |
0c4b9393 | 4193 | |
07a3cd5c | 4194 | size_t i; |
e8dba719 JR |
4195 | BITMAP_FOR_EACH_1 (i, MFF_N_IDS, fields->used.bm) { |
4196 | const struct mf_field *mf = mf_from_id(i); | |
0c4b9393 | 4197 | |
5bcd4754 | 4198 | /* Skip fields for which prerequisites are not met. */ |
e8dba719 JR |
4199 | if (!mf_are_prereqs_ok(mf, &ctx->xin->flow, ctx->wc)) { |
4200 | /* Skip the mask bytes for this field. */ | |
4201 | mask_values += mf->n_bytes; | |
4202 | continue; | |
4203 | } | |
0c4b9393 | 4204 | |
e8dba719 JR |
4205 | union mf_value value; |
4206 | union mf_value mask; | |
0c4b9393 | 4207 | |
e8dba719 JR |
4208 | mf_get_value(mf, &ctx->xin->flow, &value); |
4209 | /* Mask the value. */ | |
4210 | for (int j = 0; j < mf->n_bytes; j++) { | |
4211 | mask.b[j] = *mask_values++; | |
4212 | value.b[j] &= mask.b[j]; | |
4213 | } | |
4214 | basis = hash_bytes(&value, mf->n_bytes, basis); | |
1cb20095 | 4215 | |
e8dba719 JR |
4216 | /* For tunnels, hash in whether the field is present. */ |
4217 | if (mf_is_tun_metadata(mf)) { | |
4218 | basis = hash_boolean(mf_is_set(mf, &ctx->xin->flow), basis); | |
0c4b9393 | 4219 | } |
e8dba719 JR |
4220 | |
4221 | mf_mask_field_masked(mf, &mask, ctx->wc); | |
0c4b9393 SH |
4222 | } |
4223 | ||
07a3cd5c | 4224 | struct ofputil_bucket *bucket = group_best_live_bucket(ctx, group, basis); |
0c4b9393 | 4225 | if (bucket) { |
feee58b9 | 4226 | xlate_group_bucket(ctx, bucket, is_last_action); |
0c4b9393 | 4227 | xlate_group_stats(ctx, group, bucket); |
76973237 | 4228 | } else if (ctx->xin->xcache) { |
07a3cd5c | 4229 | ofproto_group_unref(&group->up); |
0c4b9393 SH |
4230 | } |
4231 | } | |
4232 | ||
53cc166a | 4233 | static void |
feee58b9 AZ |
4234 | xlate_dp_hash_select_group(struct xlate_ctx *ctx, struct group_dpif *group, |
4235 | bool is_last_action) | |
53cc166a JR |
4236 | { |
4237 | struct ofputil_bucket *bucket; | |
4238 | ||
4239 | /* dp_hash value 0 is special since it means that the dp_hash has not been | |
4240 | * computed, as all computed dp_hash values are non-zero. Therefore | |
4241 | * compare to zero can be used to decide if the dp_hash value is valid | |
4242 | * without masking the dp_hash field. */ | |
4243 | if (!ctx->xin->flow.dp_hash) { | |
07a3cd5c | 4244 | uint64_t param = group->up.props.selection_method_param; |
53cc166a JR |
4245 | |
4246 | ctx_trigger_recirculate_with_hash(ctx, param >> 32, (uint32_t)param); | |
4247 | } else { | |
07a3cd5c | 4248 | uint32_t n_buckets = group->up.n_buckets; |
53cc166a JR |
4249 | if (n_buckets) { |
4250 | /* Minimal mask to cover the number of buckets. */ | |
4251 | uint32_t mask = (1 << log_2_ceil(n_buckets)) - 1; | |
4252 | /* Multiplier chosen to make the trivial 1 bit case to | |
4253 | * actually distribute amongst two equal weight buckets. */ | |
4254 | uint32_t basis = 0xc2b73583 * (ctx->xin->flow.dp_hash & mask); | |
4255 | ||
4256 | ctx->wc->masks.dp_hash |= mask; | |
4257 | bucket = group_best_live_bucket(ctx, group, basis); | |
4258 | if (bucket) { | |
feee58b9 | 4259 | xlate_group_bucket(ctx, bucket, is_last_action); |
53cc166a JR |
4260 | xlate_group_stats(ctx, group, bucket); |
4261 | } | |
4262 | } | |
4263 | } | |
4264 | } | |
4265 | ||
7565c3e4 | 4266 | static void |
feee58b9 AZ |
4267 | xlate_select_group(struct xlate_ctx *ctx, struct group_dpif *group, |
4268 | bool is_last_action) | |
7565c3e4 | 4269 | { |
07a3cd5c | 4270 | const char *selection_method = group->up.props.selection_method; |
7565c3e4 | 4271 | |
e12ec36b SH |
4272 | /* Select groups may access flow keys beyond L2 in order to |
4273 | * select a bucket. Recirculate as appropriate to make this possible. | |
4274 | */ | |
4275 | if (ctx->was_mpls) { | |
4276 | ctx_trigger_freeze(ctx); | |
4277 | } | |
4278 | ||
7565c3e4 | 4279 | if (selection_method[0] == '\0') { |
feee58b9 | 4280 | xlate_default_select_group(ctx, group, is_last_action); |
0c4b9393 | 4281 | } else if (!strcasecmp("hash", selection_method)) { |
feee58b9 | 4282 | xlate_hash_fields_select_group(ctx, group, is_last_action); |
53cc166a | 4283 | } else if (!strcasecmp("dp_hash", selection_method)) { |
feee58b9 | 4284 | xlate_dp_hash_select_group(ctx, group, is_last_action); |
7565c3e4 SH |
4285 | } else { |
4286 | /* Parsing of groups should ensure this never happens */ | |
4287 | OVS_NOT_REACHED(); | |
4288 | } | |
4289 | } | |
4290 | ||
f4fb341b | 4291 | static void |
feee58b9 AZ |
4292 | xlate_group_action__(struct xlate_ctx *ctx, struct group_dpif *group, |
4293 | bool is_last_action) | |
f4fb341b | 4294 | { |
0eb48fe1 | 4295 | bool was_in_group = ctx->in_group; |
5a070238 BP |
4296 | ctx->in_group = true; |
4297 | ||
07a3cd5c | 4298 | switch (group->up.type) { |
f4fb341b SH |
4299 | case OFPGT11_ALL: |
4300 | case OFPGT11_INDIRECT: | |
feee58b9 | 4301 | xlate_all_group(ctx, group, is_last_action); |
f4fb341b SH |
4302 | break; |
4303 | case OFPGT11_SELECT: | |
feee58b9 | 4304 | xlate_select_group(ctx, group, is_last_action); |
f4fb341b | 4305 | break; |
dd8cd4b4 | 4306 | case OFPGT11_FF: |
feee58b9 | 4307 | xlate_ff_group(ctx, group, is_last_action); |
dd8cd4b4 | 4308 | break; |
f4fb341b | 4309 | default: |
428b2edd | 4310 | OVS_NOT_REACHED(); |
f4fb341b | 4311 | } |
5a070238 | 4312 | |
0eb48fe1 | 4313 | ctx->in_group = was_in_group; |
f4fb341b SH |
4314 | } |
4315 | ||
4316 | static bool | |
feee58b9 AZ |
4317 | xlate_group_action(struct xlate_ctx *ctx, uint32_t group_id, |
4318 | bool is_last_action) | |
f4fb341b | 4319 | { |
0eb48fe1 | 4320 | if (xlate_resubmit_resource_check(ctx)) { |
f4fb341b | 4321 | struct group_dpif *group; |
f4fb341b | 4322 | |
76973237 JR |
4323 | /* Take ref only if xcache exists. */ |
4324 | group = group_dpif_lookup(ctx->xbridge->ofproto, group_id, | |
1f4a8933 | 4325 | ctx->xin->tables_version, ctx->xin->xcache); |
db88b35c JR |
4326 | if (!group) { |
4327 | /* XXX: Should set ctx->error ? */ | |
2d9b49dd BP |
4328 | xlate_report(ctx, OFT_WARN, "output to nonexistent group %"PRIu32, |
4329 | group_id); | |
f4fb341b SH |
4330 | return true; |
4331 | } | |
feee58b9 | 4332 | xlate_group_action__(ctx, group, is_last_action); |
f4fb341b SH |
4333 | } |
4334 | ||
4335 | return false; | |
4336 | } | |
4337 | ||
9583bc14 EJ |
4338 | static void |
4339 | xlate_ofpact_resubmit(struct xlate_ctx *ctx, | |
feee58b9 AZ |
4340 | const struct ofpact_resubmit *resubmit, |
4341 | bool is_last_action) | |
9583bc14 | 4342 | { |
4e022ec0 | 4343 | ofp_port_t in_port; |
9583bc14 | 4344 | uint8_t table_id; |
adcf00ba AZ |
4345 | bool may_packet_in = false; |
4346 | bool honor_table_miss = false; | |
4347 | ||
4348 | if (ctx->rule && rule_dpif_is_internal(ctx->rule)) { | |
4349 | /* Still allow missed packets to be sent to the controller | |
4350 | * if resubmitting from an internal table. */ | |
4351 | may_packet_in = true; | |
4352 | honor_table_miss = true; | |
4353 | } | |
9583bc14 EJ |
4354 | |
4355 | in_port = resubmit->in_port; | |
4356 | if (in_port == OFPP_IN_PORT) { | |
4e022ec0 | 4357 | in_port = ctx->xin->flow.in_port.ofp_port; |
9583bc14 EJ |
4358 | } |
4359 | ||
4360 | table_id = resubmit->table_id; | |
4361 | if (table_id == 255) { | |
4362 | table_id = ctx->table_id; | |
4363 | } | |
4364 | ||
adcf00ba | 4365 | xlate_table_action(ctx, in_port, table_id, may_packet_in, |
feee58b9 | 4366 | honor_table_miss, resubmit->with_ct_orig, |
96c3a6e5 | 4367 | is_last_action, do_xlate_actions); |
9583bc14 EJ |
4368 | } |
4369 | ||
4370 | static void | |
feee58b9 AZ |
4371 | flood_packet_to_port(struct xlate_ctx *ctx, const struct xport *xport, |
4372 | bool all, bool is_last_action) | |
9583bc14 | 4373 | { |
feee58b9 AZ |
4374 | if (!xport) { |
4375 | return; | |
4376 | } | |
4377 | ||
4378 | if (all) { | |
4379 | compose_output_action__(ctx, xport->ofp_port, NULL, false, | |
11938578 | 4380 | is_last_action, false); |
feee58b9 | 4381 | } else { |
11938578 AZ |
4382 | compose_output_action(ctx, xport->ofp_port, NULL, is_last_action, |
4383 | false); | |
feee58b9 AZ |
4384 | } |
4385 | } | |
4386 | ||
4387 | static void | |
4388 | flood_packets(struct xlate_ctx *ctx, bool all, bool is_last_action) | |
4389 | { | |
4390 | const struct xport *xport, *last = NULL; | |
9583bc14 | 4391 | |
feee58b9 | 4392 | /* Use 'last' the keep track of the last output port. */ |
46c88433 EJ |
4393 | HMAP_FOR_EACH (xport, ofp_node, &ctx->xbridge->xports) { |
4394 | if (xport->ofp_port == ctx->xin->flow.in_port.ofp_port) { | |
9583bc14 EJ |
4395 | continue; |
4396 | } | |
4397 | ||
feee58b9 AZ |
4398 | if (all || !(xport->config & OFPUTIL_PC_NO_FLOOD)) { |
4399 | /* 'last' is not the last port, send a packet out, and | |
4400 | * update 'last'. */ | |
4401 | flood_packet_to_port(ctx, last, all, false); | |
4402 | last = xport; | |
9583bc14 EJ |
4403 | } |
4404 | } | |
4405 | ||
feee58b9 AZ |
4406 | /* Send the packet to the 'last' port. */ |
4407 | flood_packet_to_port(ctx, last, all, is_last_action); | |
2031ef97 | 4408 | ctx->nf_output_iface = NF_OUT_FLOOD; |
9583bc14 EJ |
4409 | } |
4410 | ||
74c4530d JP |
4411 | static void |
4412 | put_controller_user_action(struct xlate_ctx *ctx, | |
4413 | bool dont_send, bool continuation, | |
4414 | uint32_t recirc_id, int len, | |
4415 | enum ofp_packet_in_reason reason, | |
4416 | uint16_t controller_id) | |
4417 | { | |
4418 | struct user_action_cookie cookie; | |
4419 | ||
4420 | memset(&cookie, 0, sizeof cookie); | |
4421 | cookie.type = USER_ACTION_COOKIE_CONTROLLER; | |
4422 | cookie.ofp_in_port = OFPP_NONE, | |
4423 | cookie.ofproto_uuid = ctx->xbridge->ofproto->uuid; | |
4424 | cookie.controller.dont_send = dont_send; | |
4425 | cookie.controller.continuation = continuation; | |
4426 | cookie.controller.reason = reason; | |
4427 | cookie.controller.recirc_id = recirc_id; | |
4428 | put_32aligned_be64(&cookie.controller.rule_cookie, ctx->rule_cookie); | |
4429 | cookie.controller.controller_id = controller_id; | |
4430 | cookie.controller.max_len = len; | |
4431 | ||
4432 | odp_port_t odp_port = ofp_port_to_odp_port(ctx->xbridge, | |
4433 | ctx->xin->flow.in_port.ofp_port); | |
4434 | uint32_t pid = dpif_port_get_pid(ctx->xbridge->dpif, odp_port, | |
4435 | flow_hash_5tuple(&ctx->xin->flow, 0)); | |
4436 | odp_put_userspace_action(pid, &cookie, sizeof cookie, ODPP_NONE, | |
4437 | false, ctx->odp_actions); | |
4438 | } | |
4439 | ||
9583bc14 | 4440 | static void |
d39ec23d JP |
4441 | xlate_controller_action(struct xlate_ctx *ctx, int len, |
4442 | enum ofp_packet_in_reason reason, | |
4443 | uint16_t controller_id, | |
4444 | const uint8_t *userdata, size_t userdata_len) | |
9583bc14 | 4445 | { |
b476e2f2 | 4446 | xlate_commit_actions(ctx); |
beb75a40 | 4447 | |
9bfe9334 BP |
4448 | /* A packet sent by an action in a table-miss rule is considered an |
4449 | * explicit table miss. OpenFlow before 1.3 doesn't have that concept so | |
4450 | * it will get translated back to OFPR_ACTION for those versions. */ | |
4451 | if (reason == OFPR_ACTION | |
07a3cd5c | 4452 | && ctx->rule && rule_is_table_miss(&ctx->rule->up)) { |
9bfe9334 BP |
4453 | reason = OFPR_EXPLICIT_MISS; |
4454 | } | |
4455 | ||
d39ec23d JP |
4456 | struct frozen_state state = { |
4457 | .table_id = ctx->table_id, | |
4458 | .ofproto_uuid = ctx->xbridge->ofproto->uuid, | |
4459 | .stack = ctx->stack.data, | |
4460 | .stack_size = ctx->stack.size, | |
4461 | .mirrors = ctx->mirrors, | |
4462 | .conntracked = ctx->conntracked, | |
4463 | .ofpacts = NULL, | |
4464 | .ofpacts_len = 0, | |
4465 | .action_set = NULL, | |
4466 | .action_set_len = 0, | |
4467 | .userdata = CONST_CAST(uint8_t *, userdata), | |
4468 | .userdata_len = userdata_len, | |
9bfe9334 | 4469 | }; |
d39ec23d | 4470 | frozen_metadata_from_flow(&state.metadata, &ctx->xin->flow); |
9583bc14 | 4471 | |
d39ec23d JP |
4472 | uint32_t recirc_id = recirc_alloc_id_ctx(&state); |
4473 | if (!recirc_id) { | |
4474 | xlate_report_error(ctx, "Failed to allocate recirculation id"); | |
4475 | ctx->error = XLATE_NO_RECIRCULATION_CONTEXT; | |
4476 | return; | |
4477 | } | |
4478 | recirc_refs_add(&ctx->xout->recircs, recirc_id); | |
df70a773 | 4479 | |
d39ec23d JP |
4480 | size_t offset; |
4481 | size_t ac_offset; | |
4482 | uint32_t meter_id = ctx->xbridge->ofproto->up.controller_meter_id; | |
4483 | if (meter_id != UINT32_MAX) { | |
4484 | /* If controller meter is configured, generate clone(meter, userspace) | |
4485 | * action. */ | |
4486 | offset = nl_msg_start_nested(ctx->odp_actions, OVS_ACTION_ATTR_SAMPLE); | |
4487 | nl_msg_put_u32(ctx->odp_actions, OVS_SAMPLE_ATTR_PROBABILITY, | |
4488 | UINT32_MAX); | |
4489 | ac_offset = nl_msg_start_nested(ctx->odp_actions, | |
4490 | OVS_SAMPLE_ATTR_ACTIONS); | |
4491 | nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_METER, meter_id); | |
df70a773 | 4492 | } |
3b4fff43 | 4493 | |
d39ec23d JP |
4494 | /* Generate the datapath flows even if we don't send the packet-in |
4495 | * so that debugging more closely represents normal state. */ | |
74c4530d | 4496 | bool dont_send = false; |
d39ec23d | 4497 | if (!ctx->xin->allow_side_effects && !ctx->xin->xcache) { |
74c4530d | 4498 | dont_send = true; |
d39ec23d | 4499 | } |
74c4530d JP |
4500 | put_controller_user_action(ctx, dont_send, false, recirc_id, len, |
4501 | reason, controller_id); | |
d39ec23d JP |
4502 | |
4503 | if (meter_id != UINT32_MAX) { | |
4504 | nl_msg_end_nested(ctx->odp_actions, ac_offset); | |
4505 | nl_msg_end_nested(ctx->odp_actions, offset); | |
4506 | } | |
9583bc14 EJ |
4507 | } |
4508 | ||
e6bc8e74 YHW |
4509 | /* Creates a frozen state, and allocates a unique recirc id for the given |
4510 | * state. Returns a non-zero recirc id if it is allocated successfully. | |
4511 | * Returns 0 otherwise. | |
4512 | **/ | |
4513 | static uint32_t | |
77ab5fd2 BP |
4514 | finish_freezing__(struct xlate_ctx *ctx, uint8_t table) |
4515 | { | |
1d361a81 | 4516 | ovs_assert(ctx->freezing); |
7bbdd84f | 4517 | |
1d361a81 | 4518 | struct frozen_state state = { |
07659514 | 4519 | .table_id = table, |
07a3cd5c | 4520 | .ofproto_uuid = ctx->xbridge->ofproto->uuid, |
5c1b2314 | 4521 | .stack = ctx->stack.data, |
84cf3c1f | 4522 | .stack_size = ctx->stack.size, |
29bae541 | 4523 | .mirrors = ctx->mirrors, |
07659514 | 4524 | .conntracked = ctx->conntracked, |
43e73536 | 4525 | .xport_uuid = ctx->xin->xport_uuid, |
1d361a81 BP |
4526 | .ofpacts = ctx->frozen_actions.data, |
4527 | .ofpacts_len = ctx->frozen_actions.size, | |
417509fa | 4528 | .action_set = ctx->action_set.data, |
8a5fb3b4 | 4529 | .action_set_len = ctx->action_set.size, |
74c4530d JP |
4530 | .userdata = ctx->pause ? CONST_CAST(uint8_t *,ctx->pause->userdata) |
4531 | : NULL, | |
4532 | .userdata_len = ctx->pause ? ctx->pause->userdata_len : 0, | |
2082425c | 4533 | }; |
77ab5fd2 | 4534 | frozen_metadata_from_flow(&state.metadata, &ctx->xin->flow); |
2082425c | 4535 | |
74c4530d JP |
4536 | /* Allocate a unique recirc id for the given metadata state in the |
4537 | * flow. An existing id, with a new reference to the corresponding | |
4538 | * recirculation context, will be returned if possible. | |
4539 | * The life-cycle of this recirc id is managed by associating it | |
4540 | * with the udpif key ('ukey') created for each new datapath flow. */ | |
4541 | uint32_t recirc_id = recirc_alloc_id_ctx(&state); | |
4542 | if (!recirc_id) { | |
4543 | xlate_report_error(ctx, "Failed to allocate recirculation id"); | |
4544 | ctx->error = XLATE_NO_RECIRCULATION_CONTEXT; | |
4545 | return 0; | |
4546 | } | |
4547 | recirc_refs_add(&ctx->xout->recircs, recirc_id); | |
4548 | ||
77ab5fd2 | 4549 | if (ctx->pause) { |
74c4530d | 4550 | if (!ctx->xin->allow_side_effects && !ctx->xin->xcache) { |
e6bc8e74 | 4551 | return 0; |
77ab5fd2 | 4552 | } |
7bbdd84f | 4553 | |
74c4530d JP |
4554 | put_controller_user_action(ctx, false, true, recirc_id, |
4555 | ctx->pause->max_len, | |
4556 | ctx->pause->reason, | |
4557 | ctx->pause->controller_id); | |
4558 | } else { | |
53cc166a JR |
4559 | if (ctx->recirc_update_dp_hash) { |
4560 | struct ovs_action_hash *act_hash; | |
4561 | ||
4562 | /* Hash action. */ | |
4563 | act_hash = nl_msg_put_unspec_uninit(ctx->odp_actions, | |
4564 | OVS_ACTION_ATTR_HASH, | |
4565 | sizeof *act_hash); | |
4566 | act_hash->hash_alg = OVS_HASH_ALG_L4; /* Make configurable. */ | |
4567 | act_hash->hash_basis = 0; /* Make configurable. */ | |
4568 | } | |
74c4530d | 4569 | nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_RECIRC, recirc_id); |
77ab5fd2 | 4570 | } |
e672ff9b | 4571 | |
1d361a81 BP |
4572 | /* Undo changes done by freezing. */ |
4573 | ctx_cancel_freeze(ctx); | |
74c4530d | 4574 | return recirc_id; |
7bbdd84f SH |
4575 | } |
4576 | ||
1d361a81 | 4577 | /* Called only when we're freezing. */ |
07659514 | 4578 | static void |
77ab5fd2 | 4579 | finish_freezing(struct xlate_ctx *ctx) |
07659514 JS |
4580 | { |
4581 | xlate_commit_actions(ctx); | |
77ab5fd2 | 4582 | finish_freezing__(ctx, 0); |
07659514 JS |
4583 | } |
4584 | ||
e37b8437 JS |
4585 | /* Fork the pipeline here. The current packet will continue processing the |
4586 | * current action list. A clone of the current packet will recirculate, skip | |
4587 | * the remainder of the current action list and asynchronously resume pipeline | |
4588 | * processing in 'table' with the current metadata and action set. */ | |
4589 | static void | |
5fdd80cc YHW |
4590 | compose_recirculate_and_fork(struct xlate_ctx *ctx, uint8_t table, |
4591 | const uint16_t zone) | |
e37b8437 | 4592 | { |
e6bc8e74 | 4593 | uint32_t recirc_id; |
1d361a81 | 4594 | ctx->freezing = true; |
e6bc8e74 YHW |
4595 | recirc_id = finish_freezing__(ctx, table); |
4596 | ||
4597 | if (OVS_UNLIKELY(ctx->xin->trace) && recirc_id) { | |
4598 | if (oftrace_add_recirc_node(ctx->xin->recirc_queue, | |
4599 | OFT_RECIRC_CONNTRACK, &ctx->xin->flow, | |
5fdd80cc | 4600 | ctx->xin->packet, recirc_id, zone)) { |
e6bc8e74 YHW |
4601 | xlate_report(ctx, OFT_DETAIL, "A clone of the packet is forked to " |
4602 | "recirculate. The forked pipeline will be resumed at " | |
4603 | "table %u.", table); | |
4604 | } else { | |
4605 | xlate_report(ctx, OFT_DETAIL, "Failed to trace the conntrack " | |
4606 | "forked pipeline with recirc_id = %d.", recirc_id); | |
4607 | } | |
4608 | } | |
e37b8437 JS |
4609 | } |
4610 | ||
8bfd0fda BP |
4611 | static void |
4612 | compose_mpls_push_action(struct xlate_ctx *ctx, struct ofpact_push_mpls *mpls) | |
9583bc14 | 4613 | { |
33bf9176 | 4614 | struct flow *flow = &ctx->xin->flow; |
8bfd0fda | 4615 | int n; |
33bf9176 | 4616 | |
8bfd0fda | 4617 | ovs_assert(eth_type_mpls(mpls->ethertype)); |
b0a17866 | 4618 | |
49a73e0c | 4619 | n = flow_count_mpls_labels(flow, ctx->wc); |
8bfd0fda | 4620 | if (!n) { |
704bb0bf | 4621 | xlate_commit_actions(ctx); |
8bfd0fda BP |
4622 | } else if (n >= FLOW_MAX_MPLS_LABELS) { |
4623 | if (ctx->xin->packet != NULL) { | |
2d9b49dd BP |
4624 | xlate_report_error(ctx, "dropping packet on which an MPLS push " |
4625 | "action can't be performed as it would have " | |
4626 | "more MPLS LSEs than the %d supported.", | |
4627 | FLOW_MAX_MPLS_LABELS); | |
9583bc14 | 4628 | } |
fff1b9c0 | 4629 | ctx->error = XLATE_TOO_MANY_MPLS_LABELS; |
8bfd0fda | 4630 | return; |
9583bc14 | 4631 | } |
b0a17866 | 4632 | |
742c0ac3 JR |
4633 | /* Update flow's MPLS stack, and clear L3/4 fields to mark them invalid. */ |
4634 | flow_push_mpls(flow, n, mpls->ethertype, ctx->wc, true); | |
9583bc14 EJ |
4635 | } |
4636 | ||
8bfd0fda | 4637 | static void |
9cfef3d0 | 4638 | compose_mpls_pop_action(struct xlate_ctx *ctx, ovs_be16 eth_type) |
9583bc14 | 4639 | { |
8bfd0fda | 4640 | struct flow *flow = &ctx->xin->flow; |
49a73e0c | 4641 | int n = flow_count_mpls_labels(flow, ctx->wc); |
33bf9176 | 4642 | |
49a73e0c | 4643 | if (flow_pop_mpls(flow, n, eth_type, ctx->wc)) { |
8bf009bf | 4644 | if (!eth_type_mpls(eth_type) && ctx->xbridge->support.odp.recirc) { |
e12ec36b | 4645 | ctx->was_mpls = true; |
7bbdd84f SH |
4646 | } |
4647 | } else if (n >= FLOW_MAX_MPLS_LABELS) { | |
8bfd0fda | 4648 | if (ctx->xin->packet != NULL) { |
2d9b49dd BP |
4649 | xlate_report_error(ctx, "dropping packet on which an " |
4650 | "MPLS pop action can't be performed as it has " | |
4651 | "more MPLS LSEs than the %d supported.", | |
4652 | FLOW_MAX_MPLS_LABELS); | |
8bfd0fda | 4653 | } |
fff1b9c0 | 4654 | ctx->error = XLATE_TOO_MANY_MPLS_LABELS; |
1520ef4f | 4655 | ofpbuf_clear(ctx->odp_actions); |
9583bc14 EJ |
4656 | } |
4657 | } | |
4658 | ||
4659 | static bool | |
4660 | compose_dec_ttl(struct xlate_ctx *ctx, struct ofpact_cnt_ids *ids) | |
4661 | { | |
33bf9176 BP |
4662 | struct flow *flow = &ctx->xin->flow; |
4663 | ||
4664 | if (!is_ip_any(flow)) { | |
9583bc14 EJ |
4665 | return false; |
4666 | } | |
4667 | ||
49a73e0c | 4668 | ctx->wc->masks.nw_ttl = 0xff; |
33bf9176 BP |
4669 | if (flow->nw_ttl > 1) { |
4670 | flow->nw_ttl--; | |
9583bc14 EJ |
4671 | return false; |
4672 | } else { | |
4673 | size_t i; | |
4674 | ||
4675 | for (i = 0; i < ids->n_controllers; i++) { | |
d39ec23d JP |
4676 | xlate_controller_action(ctx, UINT16_MAX, OFPR_INVALID_TTL, |
4677 | ids->cnt_ids[i], NULL, 0); | |
9583bc14 EJ |
4678 | } |
4679 | ||
4680 | /* Stop processing for current table. */ | |
2d9b49dd BP |
4681 | xlate_report(ctx, OFT_WARN, "IPv%d decrement TTL exception", |
4682 | flow->dl_type == htons(ETH_TYPE_IP) ? 4 : 6); | |
9583bc14 EJ |
4683 | return true; |
4684 | } | |
4685 | } | |
4686 | ||
8bfd0fda | 4687 | static void |
097d4939 JR |
4688 | compose_set_mpls_label_action(struct xlate_ctx *ctx, ovs_be32 label) |
4689 | { | |
8bfd0fda | 4690 | if (eth_type_mpls(ctx->xin->flow.dl_type)) { |
49a73e0c | 4691 | ctx->wc->masks.mpls_lse[0] |= htonl(MPLS_LABEL_MASK); |
8bfd0fda | 4692 | set_mpls_lse_label(&ctx->xin->flow.mpls_lse[0], label); |
097d4939 | 4693 | } |
097d4939 JR |
4694 | } |
4695 | ||
8bfd0fda | 4696 | static void |
097d4939 JR |
4697 | compose_set_mpls_tc_action(struct xlate_ctx *ctx, uint8_t tc) |
4698 | { | |
8bfd0fda | 4699 | if (eth_type_mpls(ctx->xin->flow.dl_type)) { |
49a73e0c | 4700 | ctx->wc->masks.mpls_lse[0] |= htonl(MPLS_TC_MASK); |
8bfd0fda | 4701 | set_mpls_lse_tc(&ctx->xin->flow.mpls_lse[0], tc); |
097d4939 | 4702 | } |
097d4939 JR |
4703 | } |
4704 | ||
491e05c2 YY |
4705 | static bool |
4706 | compose_dec_nsh_ttl_action(struct xlate_ctx *ctx) | |
4707 | { | |
4708 | struct flow *flow = &ctx->xin->flow; | |
4709 | ||
4710 | if ((flow->packet_type == htonl(PT_NSH)) || | |
4711 | (flow->dl_type == htons(ETH_TYPE_NSH))) { | |
4712 | ctx->wc->masks.nsh.ttl = 0xff; | |
4713 | if (flow->nsh.ttl > 1) { | |
4714 | flow->nsh.ttl--; | |
4715 | return false; | |
4716 | } else { | |
4717 | xlate_controller_action(ctx, UINT16_MAX, OFPR_INVALID_TTL, | |
4718 | 0, NULL, 0); | |
4719 | } | |
4720 | } | |
4721 | ||
4722 | /* Stop processing for current table. */ | |
4723 | xlate_report(ctx, OFT_WARN, "NSH decrement TTL exception"); | |
4724 | return true; | |
4725 | } | |
4726 | ||
8bfd0fda | 4727 | static void |
9cfef3d0 | 4728 | compose_set_mpls_ttl_action(struct xlate_ctx *ctx, uint8_t ttl) |
9583bc14 | 4729 | { |
8bfd0fda | 4730 | if (eth_type_mpls(ctx->xin->flow.dl_type)) { |
49a73e0c | 4731 | ctx->wc->masks.mpls_lse[0] |= htonl(MPLS_TTL_MASK); |
8bfd0fda | 4732 | set_mpls_lse_ttl(&ctx->xin->flow.mpls_lse[0], ttl); |
b0a17866 | 4733 | } |
9583bc14 EJ |
4734 | } |
4735 | ||
4736 | static bool | |
9cfef3d0 | 4737 | compose_dec_mpls_ttl_action(struct xlate_ctx *ctx) |
9583bc14 | 4738 | { |
33bf9176 | 4739 | struct flow *flow = &ctx->xin->flow; |
1dd35f8a | 4740 | |
8bfd0fda | 4741 | if (eth_type_mpls(flow->dl_type)) { |
22d38fca JR |
4742 | uint8_t ttl = mpls_lse_to_ttl(flow->mpls_lse[0]); |
4743 | ||
49a73e0c | 4744 | ctx->wc->masks.mpls_lse[0] |= htonl(MPLS_TTL_MASK); |
8bfd0fda BP |
4745 | if (ttl > 1) { |
4746 | ttl--; | |
4747 | set_mpls_lse_ttl(&flow->mpls_lse[0], ttl); | |
4748 | return false; | |
4749 | } else { | |
d39ec23d JP |
4750 | xlate_controller_action(ctx, UINT16_MAX, OFPR_INVALID_TTL, 0, |
4751 | NULL, 0); | |
8bfd0fda | 4752 | } |
9583bc14 | 4753 | } |
22d38fca JR |
4754 | |
4755 | /* Stop processing for current table. */ | |
2d9b49dd | 4756 | xlate_report(ctx, OFT_WARN, "MPLS decrement TTL exception"); |
22d38fca | 4757 | return true; |
9583bc14 EJ |
4758 | } |
4759 | ||
8b496c72 BP |
4760 | /* Emits an action that outputs to 'port', within 'ctx'. |
4761 | * | |
4762 | * 'controller_len' affects only packets sent to an OpenFlow controller. It | |
4763 | * is the maximum number of bytes of the packet to send. UINT16_MAX means to | |
4764 | * send the whole packet (and 0 means to omit the packet entirely). | |
4765 | * | |
4766 | * 'may_packet_in' determines whether the packet may be sent to an OpenFlow | |
4767 | * controller. If it is false, then the packet is never sent to the OpenFlow | |
4768 | * controller. | |
4769 | * | |
4770 | * 'is_last_action' should be true if this output is the last OpenFlow action | |
4771 | * to be processed, which enables certain optimizations. | |
4772 | * | |
4773 | * 'truncate' should be true if the packet to be output is being truncated, | |
4774 | * which suppresses certain optimizations. */ | |
9583bc14 | 4775 | static void |
8b496c72 BP |
4776 | xlate_output_action(struct xlate_ctx *ctx, ofp_port_t port, |
4777 | uint16_t controller_len, bool may_packet_in, | |
4778 | bool is_last_action, bool truncate) | |
9583bc14 | 4779 | { |
2031ef97 | 4780 | ofp_port_t prev_nf_output_iface = ctx->nf_output_iface; |
9583bc14 | 4781 | |
2031ef97 | 4782 | ctx->nf_output_iface = NF_OUT_DROP; |
9583bc14 EJ |
4783 | |
4784 | switch (port) { | |
4785 | case OFPP_IN_PORT: | |
feee58b9 | 4786 | compose_output_action(ctx, ctx->xin->flow.in_port.ofp_port, NULL, |
8bbbda3c | 4787 | is_last_action, truncate); |
9583bc14 EJ |
4788 | break; |
4789 | case OFPP_TABLE: | |
4e022ec0 | 4790 | xlate_table_action(ctx, ctx->xin->flow.in_port.ofp_port, |
11938578 | 4791 | 0, may_packet_in, true, false, false, |
96c3a6e5 | 4792 | do_xlate_actions); |
9583bc14 EJ |
4793 | break; |
4794 | case OFPP_NORMAL: | |
4795 | xlate_normal(ctx); | |
4796 | break; | |
4797 | case OFPP_FLOOD: | |
feee58b9 | 4798 | flood_packets(ctx, false, is_last_action); |
9583bc14 EJ |
4799 | break; |
4800 | case OFPP_ALL: | |
feee58b9 | 4801 | flood_packets(ctx, true, is_last_action); |
9583bc14 EJ |
4802 | break; |
4803 | case OFPP_CONTROLLER: | |
d39ec23d JP |
4804 | xlate_controller_action(ctx, controller_len, |
4805 | (ctx->in_packet_out ? OFPR_PACKET_OUT | |
4806 | : ctx->in_group ? OFPR_GROUP | |
4807 | : ctx->in_action_set ? OFPR_ACTION_SET | |
4808 | : OFPR_ACTION), | |
4809 | 0, NULL, 0); | |
9583bc14 EJ |
4810 | break; |
4811 | case OFPP_NONE: | |
4812 | break; | |
4813 | case OFPP_LOCAL: | |
4814 | default: | |
4e022ec0 | 4815 | if (port != ctx->xin->flow.in_port.ofp_port) { |
8bbbda3c | 4816 | compose_output_action(ctx, port, NULL, is_last_action, truncate); |
9583bc14 | 4817 | } else { |
2d9b49dd | 4818 | xlate_report(ctx, OFT_WARN, "skipping output to input port"); |
9583bc14 EJ |
4819 | } |
4820 | break; | |
4821 | } | |
4822 | ||
4823 | if (prev_nf_output_iface == NF_OUT_FLOOD) { | |
2031ef97 BP |
4824 | ctx->nf_output_iface = NF_OUT_FLOOD; |
4825 | } else if (ctx->nf_output_iface == NF_OUT_DROP) { | |
4826 | ctx->nf_output_iface = prev_nf_output_iface; | |
9583bc14 | 4827 | } else if (prev_nf_output_iface != NF_OUT_DROP && |
2031ef97 BP |
4828 | ctx->nf_output_iface != NF_OUT_FLOOD) { |
4829 | ctx->nf_output_iface = NF_OUT_MULTI; | |
9583bc14 EJ |
4830 | } |
4831 | } | |
4832 | ||
4833 | static void | |
4834 | xlate_output_reg_action(struct xlate_ctx *ctx, | |
feee58b9 AZ |
4835 | const struct ofpact_output_reg *or, |
4836 | bool is_last_action) | |
9583bc14 EJ |
4837 | { |
4838 | uint64_t port = mf_get_subfield(&or->src, &ctx->xin->flow); | |
4839 | if (port <= UINT16_MAX) { | |
2d9b49dd BP |
4840 | xlate_report(ctx, OFT_DETAIL, "output port is %"PRIu64, port); |
4841 | ||
9583bc14 EJ |
4842 | union mf_subvalue value; |
4843 | ||
4844 | memset(&value, 0xff, sizeof value); | |
49a73e0c | 4845 | mf_write_subfield_flow(&or->src, &value, &ctx->wc->masks); |
8b496c72 BP |
4846 | xlate_output_action(ctx, u16_to_ofp(port), or->max_len, |
4847 | false, is_last_action, false); | |
2d9b49dd BP |
4848 | } else { |
4849 | xlate_report(ctx, OFT_WARN, "output port %"PRIu64" is out of range", | |
4850 | port); | |
9583bc14 EJ |
4851 | } |
4852 | } | |
4853 | ||
aaca4fe0 WT |
4854 | static void |
4855 | xlate_output_trunc_action(struct xlate_ctx *ctx, | |
feee58b9 AZ |
4856 | ofp_port_t port, uint32_t max_len, |
4857 | bool is_last_action) | |
aaca4fe0 WT |
4858 | { |
4859 | bool support_trunc = ctx->xbridge->support.trunc; | |
4860 | struct ovs_action_trunc *trunc; | |
2f2b904f | 4861 | char name[OFP10_MAX_PORT_NAME_LEN]; |
aaca4fe0 WT |
4862 | |
4863 | switch (port) { | |
4864 | case OFPP_TABLE: | |
4865 | case OFPP_NORMAL: | |
4866 | case OFPP_FLOOD: | |
4867 | case OFPP_ALL: | |
4868 | case OFPP_CONTROLLER: | |
4869 | case OFPP_NONE: | |
50f96b10 | 4870 | ofputil_port_to_string(port, NULL, name, sizeof name); |
2d9b49dd BP |
4871 | xlate_report(ctx, OFT_WARN, |
4872 | "output_trunc does not support port: %s", name); | |
aaca4fe0 WT |
4873 | break; |
4874 | case OFPP_LOCAL: | |
4875 | case OFPP_IN_PORT: | |
4876 | default: | |
4877 | if (port != ctx->xin->flow.in_port.ofp_port) { | |
4878 | const struct xport *xport = get_ofp_port(ctx->xbridge, port); | |
4879 | ||
4880 | if (xport == NULL || xport->odp_port == ODPP_NONE) { | |
4881 | /* Since truncate happens at its following output action, if | |
4882 | * the output port is a patch port, the behavior is somehow | |
49f17344 | 4883 | * unpredictable. For simplicity, disallow this case. */ |
50f96b10 | 4884 | ofputil_port_to_string(port, NULL, name, sizeof name); |
2d9b49dd BP |
4885 | xlate_report_error(ctx, "output_trunc does not support " |
4886 | "patch port %s", name); | |
aaca4fe0 WT |
4887 | break; |
4888 | } | |
4889 | ||
4890 | trunc = nl_msg_put_unspec_uninit(ctx->odp_actions, | |
4891 | OVS_ACTION_ATTR_TRUNC, | |
4892 | sizeof *trunc); | |
4893 | trunc->max_len = max_len; | |
8b496c72 | 4894 | xlate_output_action(ctx, port, 0, false, is_last_action, true); |
aaca4fe0 WT |
4895 | if (!support_trunc) { |
4896 | ctx->xout->slow |= SLOW_ACTION; | |
4897 | } | |
4898 | } else { | |
2d9b49dd | 4899 | xlate_report(ctx, OFT_WARN, "skipping output to input port"); |
aaca4fe0 WT |
4900 | } |
4901 | break; | |
4902 | } | |
4903 | } | |
4904 | ||
9583bc14 EJ |
4905 | static void |
4906 | xlate_enqueue_action(struct xlate_ctx *ctx, | |
feee58b9 AZ |
4907 | const struct ofpact_enqueue *enqueue, |
4908 | bool is_last_action) | |
9583bc14 | 4909 | { |
4e022ec0 | 4910 | ofp_port_t ofp_port = enqueue->port; |
9583bc14 EJ |
4911 | uint32_t queue_id = enqueue->queue; |
4912 | uint32_t flow_priority, priority; | |
4913 | int error; | |
4914 | ||
4915 | /* Translate queue to priority. */ | |
89a8a7f0 | 4916 | error = dpif_queue_to_priority(ctx->xbridge->dpif, queue_id, &priority); |
9583bc14 EJ |
4917 | if (error) { |
4918 | /* Fall back to ordinary output action. */ | |
8b496c72 BP |
4919 | xlate_output_action(ctx, enqueue->port, 0, false, |
4920 | is_last_action, false); | |
9583bc14 EJ |
4921 | return; |
4922 | } | |
4923 | ||
4924 | /* Check output port. */ | |
4925 | if (ofp_port == OFPP_IN_PORT) { | |
4e022ec0 AW |
4926 | ofp_port = ctx->xin->flow.in_port.ofp_port; |
4927 | } else if (ofp_port == ctx->xin->flow.in_port.ofp_port) { | |
9583bc14 EJ |
4928 | return; |
4929 | } | |
4930 | ||
4931 | /* Add datapath actions. */ | |
4932 | flow_priority = ctx->xin->flow.skb_priority; | |
4933 | ctx->xin->flow.skb_priority = priority; | |
11938578 | 4934 | compose_output_action(ctx, ofp_port, NULL, is_last_action, false); |
9583bc14 EJ |
4935 | ctx->xin->flow.skb_priority = flow_priority; |
4936 | ||
4937 | /* Update NetFlow output port. */ | |
2031ef97 BP |
4938 | if (ctx->nf_output_iface == NF_OUT_DROP) { |
4939 | ctx->nf_output_iface = ofp_port; | |
4940 | } else if (ctx->nf_output_iface != NF_OUT_FLOOD) { | |
4941 | ctx->nf_output_iface = NF_OUT_MULTI; | |
9583bc14 EJ |
4942 | } |
4943 | } | |
4944 | ||
4945 | static void | |
4946 | xlate_set_queue_action(struct xlate_ctx *ctx, uint32_t queue_id) | |
4947 | { | |
4948 | uint32_t skb_priority; | |
4949 | ||
89a8a7f0 | 4950 | if (!dpif_queue_to_priority(ctx->xbridge->dpif, queue_id, &skb_priority)) { |
9583bc14 EJ |
4951 | ctx->xin->flow.skb_priority = skb_priority; |
4952 | } else { | |
4953 | /* Couldn't translate queue to a priority. Nothing to do. A warning | |
4954 | * has already been logged. */ | |
4955 | } | |
4956 | } | |
4957 | ||
4958 | static bool | |
46c88433 | 4959 | slave_enabled_cb(ofp_port_t ofp_port, void *xbridge_) |
9583bc14 | 4960 | { |
46c88433 EJ |
4961 | const struct xbridge *xbridge = xbridge_; |
4962 | struct xport *port; | |
9583bc14 EJ |
4963 | |
4964 | switch (ofp_port) { | |
4965 | case OFPP_IN_PORT: | |
4966 | case OFPP_TABLE: | |
4967 | case OFPP_NORMAL: | |
4968 | case OFPP_FLOOD: | |
4969 | case OFPP_ALL: | |
4970 | case OFPP_NONE: | |
4971 | return true; | |
4972 | case OFPP_CONTROLLER: /* Not supported by the bundle action. */ | |
4973 | return false; | |
4974 | default: | |
46c88433 | 4975 | port = get_ofp_port(xbridge, ofp_port); |
9583bc14 EJ |
4976 | return port ? port->may_enable : false; |
4977 | } | |
4978 | } | |
4979 | ||
4980 | static void | |
4981 | xlate_bundle_action(struct xlate_ctx *ctx, | |
feee58b9 AZ |
4982 | const struct ofpact_bundle *bundle, |
4983 | bool is_last_action) | |
9583bc14 | 4984 | { |
4e022ec0 | 4985 | ofp_port_t port; |
9583bc14 | 4986 | |
49a73e0c | 4987 | port = bundle_execute(bundle, &ctx->xin->flow, ctx->wc, slave_enabled_cb, |
46c88433 | 4988 | CONST_CAST(struct xbridge *, ctx->xbridge)); |
9583bc14 | 4989 | if (bundle->dst.field) { |
49a73e0c | 4990 | nxm_reg_load(&bundle->dst, ofp_to_u16(port), &ctx->xin->flow, ctx->wc); |
2d9b49dd | 4991 | xlate_report_subfield(ctx, &bundle->dst); |
9583bc14 | 4992 | } else { |
8b496c72 | 4993 | xlate_output_action(ctx, port, 0, false, is_last_action, false); |
9583bc14 EJ |
4994 | } |
4995 | } | |
4996 | ||
4165b5e0 JS |
4997 | static void |
4998 | xlate_learn_action(struct xlate_ctx *ctx, const struct ofpact_learn *learn) | |
4999 | { | |
49a73e0c | 5000 | learn_mask(learn, ctx->wc); |
9583bc14 | 5001 | |
df70a773 | 5002 | if (ctx->xin->xcache || ctx->xin->allow_side_effects) { |
4165b5e0 JS |
5003 | uint64_t ofpacts_stub[1024 / 8]; |
5004 | struct ofputil_flow_mod fm; | |
2c7ee524 | 5005 | struct ofproto_flow_mod ofm__, *ofm; |
4165b5e0 | 5006 | struct ofpbuf ofpacts; |
2c7ee524 JR |
5007 | enum ofperr error; |
5008 | ||
5009 | if (ctx->xin->xcache) { | |
3f3b97b0 | 5010 | ofm = xmalloc(sizeof *ofm); |
2c7ee524 JR |
5011 | } else { |
5012 | ofm = &ofm__; | |
5013 | } | |
4165b5e0 JS |
5014 | |
5015 | ofpbuf_use_stub(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); | |
2c7ee524 | 5016 | learn_execute(learn, &ctx->xin->flow, &fm, &ofpacts); |
2d9b49dd BP |
5017 | if (OVS_UNLIKELY(ctx->xin->trace)) { |
5018 | struct ds s = DS_EMPTY_INITIALIZER; | |
5019 | ds_put_format(&s, "table=%"PRIu8" ", fm.table_id); | |
50f96b10 | 5020 | match_format(&fm.match, NULL, &s, OFP_DEFAULT_PRIORITY); |
2d9b49dd BP |
5021 | ds_chomp(&s, ' '); |
5022 | ds_put_format(&s, " priority=%d", fm.priority); | |
5023 | if (fm.new_cookie) { | |
5024 | ds_put_format(&s, " cookie=%#"PRIx64, ntohll(fm.new_cookie)); | |
5025 | } | |
5026 | if (fm.idle_timeout != OFP_FLOW_PERMANENT) { | |
5027 | ds_put_format(&s, " idle=%"PRIu16, fm.idle_timeout); | |
5028 | } | |
5029 | if (fm.hard_timeout != OFP_FLOW_PERMANENT) { | |
5030 | ds_put_format(&s, " hard=%"PRIu16, fm.hard_timeout); | |
5031 | } | |
5032 | if (fm.flags & NX_LEARN_F_SEND_FLOW_REM) { | |
5033 | ds_put_cstr(&s, " send_flow_rem"); | |
5034 | } | |
5035 | ds_put_cstr(&s, " actions="); | |
50f96b10 | 5036 | ofpacts_format(fm.ofpacts, fm.ofpacts_len, NULL, &s); |
2d9b49dd BP |
5037 | xlate_report(ctx, OFT_DETAIL, "%s", ds_cstr(&s)); |
5038 | ds_destroy(&s); | |
5039 | } | |
2c7ee524 JR |
5040 | error = ofproto_dpif_flow_mod_init_for_learn(ctx->xbridge->ofproto, |
5041 | &fm, ofm); | |
4165b5e0 | 5042 | ofpbuf_uninit(&ofpacts); |
2c7ee524 | 5043 | |
3f3b97b0 | 5044 | if (!error) { |
4c71600d | 5045 | bool success = true; |
3f3b97b0 | 5046 | if (ctx->xin->allow_side_effects) { |
4c71600d DDP |
5047 | error = ofproto_flow_mod_learn(ofm, ctx->xin->xcache != NULL, |
5048 | learn->limit, &success); | |
5049 | } else if (learn->limit) { | |
5050 | if (!ofm->temp_rule | |
5051 | || ofm->temp_rule->state != RULE_INSERTED) { | |
5052 | /* The learned rule expired and there are no packets, so | |
5053 | * we cannot learn again. Since the translated actions | |
5054 | * depend on the result of learning, we tell the caller | |
5055 | * that there's no point in caching this result. */ | |
5056 | ctx->xout->avoid_caching = true; | |
5057 | } | |
3f3b97b0 DDP |
5058 | } |
5059 | ||
4c71600d DDP |
5060 | if (learn->flags & NX_LEARN_F_WRITE_RESULT) { |
5061 | nxm_reg_load(&learn->result_dst, success ? 1 : 0, | |
5062 | &ctx->xin->flow, ctx->wc); | |
5063 | xlate_report_subfield(ctx, &learn->result_dst); | |
5064 | } | |
5065 | ||
5066 | if (success && ctx->xin->xcache) { | |
3f3b97b0 DDP |
5067 | struct xc_entry *entry; |
5068 | ||
5069 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_LEARN); | |
5070 | entry->learn.ofm = ofm; | |
4c71600d | 5071 | entry->learn.limit = learn->limit; |
3f3b97b0 | 5072 | ofm = NULL; |
1bddcb5d YS |
5073 | } else { |
5074 | ofproto_flow_mod_uninit(ofm); | |
3f3b97b0 | 5075 | } |
4c71600d DDP |
5076 | |
5077 | if (OVS_UNLIKELY(ctx->xin->trace && !success)) { | |
5078 | xlate_report(ctx, OFT_DETAIL, "Limit exceeded, learn failed"); | |
5079 | } | |
3f3b97b0 DDP |
5080 | } |
5081 | ||
3f76c123 | 5082 | if (ofm != &ofm__) { |
3f3b97b0 | 5083 | free(ofm); |
2c7ee524 JR |
5084 | } |
5085 | ||
5086 | if (error) { | |
2d9b49dd BP |
5087 | xlate_report_error(ctx, "LEARN action execution failed (%s).", |
5088 | ofperr_to_string(error)); | |
2c7ee524 | 5089 | } |
2d9b49dd BP |
5090 | } else { |
5091 | xlate_report(ctx, OFT_WARN, | |
5092 | "suppressing side effects, so learn action ignored"); | |
b256dc52 JS |
5093 | } |
5094 | } | |
5095 | ||
5096 | static void | |
5097 | xlate_fin_timeout__(struct rule_dpif *rule, uint16_t tcp_flags, | |
5098 | uint16_t idle_timeout, uint16_t hard_timeout) | |
5099 | { | |
5100 | if (tcp_flags & (TCP_FIN | TCP_RST)) { | |
07a3cd5c | 5101 | ofproto_rule_reduce_timeouts(&rule->up, idle_timeout, hard_timeout); |
b256dc52 | 5102 | } |
9583bc14 EJ |
5103 | } |
5104 | ||
9583bc14 EJ |
5105 | static void |
5106 | xlate_fin_timeout(struct xlate_ctx *ctx, | |
5107 | const struct ofpact_fin_timeout *oft) | |
5108 | { | |
b256dc52 | 5109 | if (ctx->rule) { |
df70a773 JR |
5110 | if (ctx->xin->allow_side_effects) { |
5111 | xlate_fin_timeout__(ctx->rule, ctx->xin->tcp_flags, | |
5112 | oft->fin_idle_timeout, oft->fin_hard_timeout); | |
5113 | } | |
b256dc52 JS |
5114 | if (ctx->xin->xcache) { |
5115 | struct xc_entry *entry; | |
5116 | ||
5117 | entry = xlate_cache_add_entry(ctx->xin->xcache, XC_FIN_TIMEOUT); | |
83709dfa JR |
5118 | /* XC_RULE already holds a reference on the rule, none is taken |
5119 | * here. */ | |
901a517e JR |
5120 | entry->fin.rule = ctx->rule; |
5121 | entry->fin.idle = oft->fin_idle_timeout; | |
5122 | entry->fin.hard = oft->fin_hard_timeout; | |
b256dc52 | 5123 | } |
9583bc14 EJ |
5124 | } |
5125 | } | |
5126 | ||
5127 | static void | |
5128 | xlate_sample_action(struct xlate_ctx *ctx, | |
5129 | const struct ofpact_sample *os) | |
5130 | { | |
f69f713b BY |
5131 | odp_port_t output_odp_port = ODPP_NONE; |
5132 | odp_port_t tunnel_out_port = ODPP_NONE; | |
5133 | struct dpif_ipfix *ipfix = ctx->xbridge->ipfix; | |
5134 | bool emit_set_tunnel = false; | |
5135 | ||
5136 | if (!ipfix || ctx->xin->flow.in_port.ofp_port == OFPP_NONE) { | |
5137 | return; | |
5138 | } | |
5139 | ||
e824d78d JR |
5140 | /* Scale the probability from 16-bit to 32-bit while representing |
5141 | * the same percentage. */ | |
5142 | uint32_t probability = (os->probability << 16) | os->probability; | |
5143 | ||
f69f713b BY |
5144 | /* If ofp_port in flow sample action is equel to ofp_port, |
5145 | * this sample action is a input port action. */ | |
5146 | if (os->sampling_port != OFPP_NONE && | |
5147 | os->sampling_port != ctx->xin->flow.in_port.ofp_port) { | |
5148 | output_odp_port = ofp_port_to_odp_port(ctx->xbridge, | |
5149 | os->sampling_port); | |
5150 | if (output_odp_port == ODPP_NONE) { | |
2d9b49dd BP |
5151 | xlate_report_error(ctx, "can't use unknown port %d in flow sample " |
5152 | "action", os->sampling_port); | |
f69f713b BY |
5153 | return; |
5154 | } | |
5155 | ||
5156 | if (dpif_ipfix_get_flow_exporter_tunnel_sampling(ipfix, | |
5157 | os->collector_set_id) | |
cd32509e | 5158 | && dpif_ipfix_is_tunnel_port(ipfix, output_odp_port)) { |
f69f713b BY |
5159 | tunnel_out_port = output_odp_port; |
5160 | emit_set_tunnel = true; | |
5161 | } | |
5162 | } | |
5163 | ||
5164 | xlate_commit_actions(ctx); | |
5165 | /* If 'emit_set_tunnel', sample(sampling_port=1) would translate | |
5166 | * into datapath sample action set(tunnel(...)), sample(...) and | |
5167 | * it is used for sampling egress tunnel information. */ | |
5168 | if (emit_set_tunnel) { | |
5169 | const struct xport *xport = get_ofp_port(ctx->xbridge, | |
5170 | os->sampling_port); | |
5171 | ||
5172 | if (xport && xport->is_tunnel) { | |
5173 | struct flow *flow = &ctx->xin->flow; | |
5174 | tnl_port_send(xport->ofport, flow, ctx->wc); | |
5175 | if (!ovs_native_tunneling_is_on(ctx->xbridge->ofproto)) { | |
5176 | struct flow_tnl flow_tnl = flow->tunnel; | |
5177 | ||
5178 | commit_odp_tunnel_action(flow, &ctx->base_flow, | |
5179 | ctx->odp_actions); | |
5180 | flow->tunnel = flow_tnl; | |
5181 | } | |
5182 | } else { | |
2d9b49dd BP |
5183 | xlate_report_error(ctx, |
5184 | "sampling_port:%d should be a tunnel port.", | |
5185 | os->sampling_port); | |
f69f713b BY |
5186 | } |
5187 | } | |
e824d78d | 5188 | |
8de6ff3e JP |
5189 | struct user_action_cookie cookie = { |
5190 | .type = USER_ACTION_COOKIE_FLOW_SAMPLE, | |
fcb9579b JP |
5191 | .ofp_in_port = ctx->xin->flow.in_port.ofp_port, |
5192 | .ofproto_uuid = ctx->xbridge->ofproto->uuid, | |
a6092018 | 5193 | .flow_sample = { |
a6092018 BP |
5194 | .probability = os->probability, |
5195 | .collector_set_id = os->collector_set_id, | |
5196 | .obs_domain_id = os->obs_domain_id, | |
5197 | .obs_point_id = os->obs_point_id, | |
f69f713b | 5198 | .output_odp_port = output_odp_port, |
4930ea56 | 5199 | .direction = os->direction, |
a6092018 BP |
5200 | } |
5201 | }; | |
8de6ff3e | 5202 | compose_sample_action(ctx, probability, &cookie, tunnel_out_port, false); |
9583bc14 EJ |
5203 | } |
5204 | ||
eee69393 AZ |
5205 | /* Determine if an datapath action translated from the openflow action |
5206 | * can be reversed by another datapath action. | |
5207 | * | |
5208 | * Openflow actions that do not emit datapath actions are trivially | |
5209 | * reversible. Reversiblity of other actions depends on nature of | |
5210 | * action and their translation. */ | |
5211 | static bool | |
5212 | reversible_actions(const struct ofpact *ofpacts, size_t ofpacts_len) | |
bef503e8 | 5213 | { |
eee69393 | 5214 | const struct ofpact *a; |
bef503e8 | 5215 | |
eee69393 AZ |
5216 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
5217 | switch (a->type) { | |
5218 | case OFPACT_BUNDLE: | |
5219 | case OFPACT_CLEAR_ACTIONS: | |
5220 | case OFPACT_CLONE: | |
5221 | case OFPACT_CONJUNCTION: | |
5222 | case OFPACT_CONTROLLER: | |
5223 | case OFPACT_CT_CLEAR: | |
5224 | case OFPACT_DEBUG_RECIRC: | |
a934a3dd | 5225 | case OFPACT_DEBUG_SLOW: |
eee69393 AZ |
5226 | case OFPACT_DEC_MPLS_TTL: |
5227 | case OFPACT_DEC_TTL: | |
5228 | case OFPACT_ENQUEUE: | |
5229 | case OFPACT_EXIT: | |
5230 | case OFPACT_FIN_TIMEOUT: | |
5231 | case OFPACT_GOTO_TABLE: | |
5232 | case OFPACT_GROUP: | |
5233 | case OFPACT_LEARN: | |
5234 | case OFPACT_MULTIPATH: | |
5235 | case OFPACT_NOTE: | |
5236 | case OFPACT_OUTPUT: | |
5237 | case OFPACT_OUTPUT_REG: | |
5238 | case OFPACT_POP_MPLS: | |
5239 | case OFPACT_POP_QUEUE: | |
5240 | case OFPACT_PUSH_MPLS: | |
5241 | case OFPACT_PUSH_VLAN: | |
5242 | case OFPACT_REG_MOVE: | |
5243 | case OFPACT_RESUBMIT: | |
5244 | case OFPACT_SAMPLE: | |
5245 | case OFPACT_SET_ETH_DST: | |
5246 | case OFPACT_SET_ETH_SRC: | |
5247 | case OFPACT_SET_FIELD: | |
5248 | case OFPACT_SET_IP_DSCP: | |
5249 | case OFPACT_SET_IP_ECN: | |
5250 | case OFPACT_SET_IP_TTL: | |
5251 | case OFPACT_SET_IPV4_DST: | |
5252 | case OFPACT_SET_IPV4_SRC: | |
5253 | case OFPACT_SET_L4_DST_PORT: | |
5254 | case OFPACT_SET_L4_SRC_PORT: | |
5255 | case OFPACT_SET_MPLS_LABEL: | |
5256 | case OFPACT_SET_MPLS_TC: | |
5257 | case OFPACT_SET_MPLS_TTL: | |
5258 | case OFPACT_SET_QUEUE: | |
5259 | case OFPACT_SET_TUNNEL: | |
5260 | case OFPACT_SET_VLAN_PCP: | |
5261 | case OFPACT_SET_VLAN_VID: | |
5262 | case OFPACT_STACK_POP: | |
5263 | case OFPACT_STACK_PUSH: | |
5264 | case OFPACT_STRIP_VLAN: | |
5265 | case OFPACT_UNROLL_XLATE: | |
5266 | case OFPACT_WRITE_ACTIONS: | |
5267 | case OFPACT_WRITE_METADATA: | |
5268 | break; | |
5269 | ||
5270 | case OFPACT_CT: | |
5271 | case OFPACT_METER: | |
5272 | case OFPACT_NAT: | |
5273 | case OFPACT_OUTPUT_TRUNC: | |
2142be1f BP |
5274 | case OFPACT_ENCAP: |
5275 | case OFPACT_DECAP: | |
491e05c2 | 5276 | case OFPACT_DEC_NSH_TTL: |
eee69393 | 5277 | return false; |
9c2a44dc | 5278 | } |
456024cb | 5279 | } |
eee69393 | 5280 | return true; |
bef503e8 AZ |
5281 | } |
5282 | ||
5283 | static void | |
c9f0a445 | 5284 | clone_xlate_actions(const struct ofpact *actions, size_t actions_len, |
feee58b9 | 5285 | struct xlate_ctx *ctx, bool is_last_action) |
7ae62a67 | 5286 | { |
b827b231 BP |
5287 | struct ofpbuf old_stack = ctx->stack; |
5288 | union mf_subvalue new_stack[1024 / sizeof(union mf_subvalue)]; | |
5289 | ofpbuf_use_stub(&ctx->stack, new_stack, sizeof new_stack); | |
5290 | ofpbuf_put(&ctx->stack, old_stack.data, old_stack.size); | |
5291 | ||
5292 | struct ofpbuf old_action_set = ctx->action_set; | |
5293 | uint64_t actset_stub[1024 / 8]; | |
5294 | ofpbuf_use_stub(&ctx->action_set, actset_stub, sizeof actset_stub); | |
5295 | ofpbuf_put(&ctx->action_set, old_action_set.data, old_action_set.size); | |
5296 | ||
eee69393 | 5297 | size_t offset, ac_offset; |
eee69393 AZ |
5298 | struct flow old_flow = ctx->xin->flow; |
5299 | ||
feee58b9 | 5300 | if (reversible_actions(actions, actions_len) || is_last_action) { |
eee69393 | 5301 | old_flow = ctx->xin->flow; |
feee58b9 | 5302 | do_xlate_actions(actions, actions_len, ctx, is_last_action); |
058d3a4a EG |
5303 | if (!ctx->freezing) { |
5304 | xlate_action_set(ctx); | |
5305 | } | |
60eebf12 AZ |
5306 | if (ctx->freezing) { |
5307 | finish_freezing(ctx); | |
5308 | } | |
eee69393 AZ |
5309 | goto xlate_done; |
5310 | } | |
5311 | ||
5312 | /* Commit datapath actions before emitting the clone action to | |
5313 | * avoid emitting those actions twice. Once inside | |
5314 | * the clone, another time for the action after clone. */ | |
5315 | xlate_commit_actions(ctx); | |
9c2a44dc | 5316 | struct flow old_base = ctx->base_flow; |
eee69393 AZ |
5317 | bool old_was_mpls = ctx->was_mpls; |
5318 | bool old_conntracked = ctx->conntracked; | |
ba653d2a | 5319 | |
eee69393 AZ |
5320 | /* The actions are not reversible, a datapath clone action is |
5321 | * required to encode the translation. Select the clone action | |
5322 | * based on datapath capabilities. */ | |
5323 | if (ctx->xbridge->support.clone) { /* Use clone action */ | |
5324 | /* Use clone action as datapath clone. */ | |
5325 | offset = nl_msg_start_nested(ctx->odp_actions, OVS_ACTION_ATTR_CLONE); | |
feee58b9 | 5326 | do_xlate_actions(actions, actions_len, ctx, true); |
058d3a4a EG |
5327 | if (!ctx->freezing) { |
5328 | xlate_action_set(ctx); | |
5329 | } | |
60eebf12 AZ |
5330 | if (ctx->freezing) { |
5331 | finish_freezing(ctx); | |
5332 | } | |
eee69393 AZ |
5333 | nl_msg_end_non_empty_nested(ctx->odp_actions, offset); |
5334 | goto dp_clone_done; | |
5335 | } | |
b827b231 | 5336 | |
eee69393 AZ |
5337 | if (ctx->xbridge->support.sample_nesting > 3) { |
5338 | /* Use sample action as datapath clone. */ | |
5339 | offset = nl_msg_start_nested(ctx->odp_actions, OVS_ACTION_ATTR_SAMPLE); | |
5340 | ac_offset = nl_msg_start_nested(ctx->odp_actions, | |
5341 | OVS_SAMPLE_ATTR_ACTIONS); | |
feee58b9 | 5342 | do_xlate_actions(actions, actions_len, ctx, true); |
058d3a4a EG |
5343 | if (!ctx->freezing) { |
5344 | xlate_action_set(ctx); | |
5345 | } | |
60eebf12 AZ |
5346 | if (ctx->freezing) { |
5347 | finish_freezing(ctx); | |
5348 | } | |
eee69393 AZ |
5349 | if (nl_msg_end_non_empty_nested(ctx->odp_actions, ac_offset)) { |
5350 | nl_msg_cancel_nested(ctx->odp_actions, offset); | |
5351 | } else { | |
5352 | nl_msg_put_u32(ctx->odp_actions, OVS_SAMPLE_ATTR_PROBABILITY, | |
5353 | UINT32_MAX); /* 100% probability. */ | |
5354 | nl_msg_end_nested(ctx->odp_actions, offset); | |
5355 | } | |
5356 | goto dp_clone_done; | |
5357 | } | |
5358 | ||
5359 | /* Datapath does not support clone, skip xlate 'oc' and | |
5360 | * report an error */ | |
5361 | xlate_report_error(ctx, "Failed to compose clone action"); | |
ba653d2a | 5362 | |
eee69393 | 5363 | dp_clone_done: |
ba653d2a BP |
5364 | /* The clone's conntrack execution should have no effect on the original |
5365 | * packet. */ | |
5366 | ctx->conntracked = old_conntracked; | |
bd3c2df3 BP |
5367 | |
5368 | /* Popping MPLS from the clone should have no effect on the original | |
5369 | * packet. */ | |
5370 | ctx->was_mpls = old_was_mpls; | |
eee69393 AZ |
5371 | |
5372 | /* Restore the 'base_flow' for the next action. */ | |
5373 | ctx->base_flow = old_base; | |
5374 | ||
5375 | xlate_done: | |
5376 | ofpbuf_uninit(&ctx->action_set); | |
5377 | ctx->action_set = old_action_set; | |
5378 | ofpbuf_uninit(&ctx->stack); | |
5379 | ctx->stack = old_stack; | |
5380 | ctx->xin->flow = old_flow; | |
7ae62a67 WT |
5381 | } |
5382 | ||
c9f0a445 | 5383 | static void |
feee58b9 AZ |
5384 | compose_clone(struct xlate_ctx *ctx, const struct ofpact_nest *oc, |
5385 | bool is_last_action) | |
c9f0a445 AZ |
5386 | { |
5387 | size_t oc_actions_len = ofpact_nest_get_action_len(oc); | |
5388 | ||
feee58b9 | 5389 | clone_xlate_actions(oc->actions, oc_actions_len, ctx, is_last_action); |
c9f0a445 AZ |
5390 | } |
5391 | ||
076caa2f JR |
5392 | static void |
5393 | xlate_meter_action(struct xlate_ctx *ctx, const struct ofpact_meter *meter) | |
5394 | { | |
5395 | if (meter->provider_meter_id != UINT32_MAX) { | |
5396 | nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_METER, | |
5397 | meter->provider_meter_id); | |
5398 | } | |
5399 | } | |
5400 | ||
9583bc14 | 5401 | static bool |
46c88433 | 5402 | may_receive(const struct xport *xport, struct xlate_ctx *ctx) |
9583bc14 | 5403 | { |
bbbca389 | 5404 | if (xport->config & (is_stp(&ctx->xin->flow) |
46c88433 EJ |
5405 | ? OFPUTIL_PC_NO_RECV_STP |
5406 | : OFPUTIL_PC_NO_RECV)) { | |
9583bc14 EJ |
5407 | return false; |
5408 | } | |
5409 | ||
5410 | /* Only drop packets here if both forwarding and learning are | |
5411 | * disabled. If just learning is enabled, we need to have | |
5412 | * OFPP_NORMAL and the learning action have a look at the packet | |
5413 | * before we can drop it. */ | |
9efd308e DV |
5414 | if ((!xport_stp_forward_state(xport) && !xport_stp_learn_state(xport)) || |
5415 | (!xport_rstp_forward_state(xport) && !xport_rstp_learn_state(xport))) { | |
9583bc14 EJ |
5416 | return false; |
5417 | } | |
5418 | ||
5419 | return true; | |
5420 | } | |
5421 | ||
7fdb60a7 | 5422 | static void |
7e7e8dbb BP |
5423 | xlate_write_actions__(struct xlate_ctx *ctx, |
5424 | const struct ofpact *ofpacts, size_t ofpacts_len) | |
7fdb60a7 | 5425 | { |
c61f3870 BP |
5426 | /* Maintain actset_output depending on the contents of the action set: |
5427 | * | |
5428 | * - OFPP_UNSET, if there is no "output" action. | |
5429 | * | |
5430 | * - The output port, if there is an "output" action and no "group" | |
5431 | * action. | |
5432 | * | |
5433 | * - OFPP_UNSET, if there is a "group" action. | |
5434 | */ | |
5435 | if (!ctx->action_set_has_group) { | |
7e7e8dbb BP |
5436 | const struct ofpact *a; |
5437 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { | |
5438 | if (a->type == OFPACT_OUTPUT) { | |
5439 | ctx->xin->flow.actset_output = ofpact_get_OUTPUT(a)->port; | |
5440 | } else if (a->type == OFPACT_GROUP) { | |
c61f3870 BP |
5441 | ctx->xin->flow.actset_output = OFPP_UNSET; |
5442 | ctx->action_set_has_group = true; | |
9055ca9a | 5443 | break; |
c61f3870 BP |
5444 | } |
5445 | } | |
5446 | } | |
5447 | ||
7e7e8dbb BP |
5448 | ofpbuf_put(&ctx->action_set, ofpacts, ofpacts_len); |
5449 | } | |
5450 | ||
5451 | static void | |
5452 | xlate_write_actions(struct xlate_ctx *ctx, const struct ofpact_nest *a) | |
5453 | { | |
5454 | xlate_write_actions__(ctx, a->actions, ofpact_nest_get_action_len(a)); | |
7fdb60a7 SH |
5455 | } |
5456 | ||
5457 | static void | |
5458 | xlate_action_set(struct xlate_ctx *ctx) | |
5459 | { | |
2d9b49dd BP |
5460 | uint64_t action_list_stub[1024 / 8]; |
5461 | struct ofpbuf action_list = OFPBUF_STUB_INITIALIZER(action_list_stub); | |
7fdb60a7 | 5462 | ofpacts_execute_action_set(&action_list, &ctx->action_set); |
ed9c9e3e JR |
5463 | /* Clear the action set, as it is not needed any more. */ |
5464 | ofpbuf_clear(&ctx->action_set); | |
2d9b49dd BP |
5465 | if (action_list.size) { |
5466 | ctx->in_action_set = true; | |
5467 | ||
5468 | struct ovs_list *old_trace = ctx->xin->trace; | |
5469 | ctx->xin->trace = xlate_report(ctx, OFT_TABLE, | |
5470 | "--. Executing action set:"); | |
feee58b9 | 5471 | do_xlate_actions(action_list.data, action_list.size, ctx, true); |
2d9b49dd BP |
5472 | ctx->xin->trace = old_trace; |
5473 | ||
5474 | ctx->in_action_set = false; | |
5475 | } | |
7fdb60a7 SH |
5476 | ofpbuf_uninit(&action_list); |
5477 | } | |
5478 | ||
e672ff9b | 5479 | static void |
1d361a81 | 5480 | freeze_put_unroll_xlate(struct xlate_ctx *ctx) |
e672ff9b | 5481 | { |
1d361a81 | 5482 | struct ofpact_unroll_xlate *unroll = ctx->frozen_actions.header; |
e672ff9b JR |
5483 | |
5484 | /* Restore the table_id and rule cookie for a potential PACKET | |
5485 | * IN if needed. */ | |
5486 | if (!unroll || | |
5487 | (ctx->table_id != unroll->rule_table_id | |
5488 | || ctx->rule_cookie != unroll->rule_cookie)) { | |
1d361a81 | 5489 | unroll = ofpact_put_UNROLL_XLATE(&ctx->frozen_actions); |
e672ff9b JR |
5490 | unroll->rule_table_id = ctx->table_id; |
5491 | unroll->rule_cookie = ctx->rule_cookie; | |
1d361a81 | 5492 | ctx->frozen_actions.header = unroll; |
e672ff9b JR |
5493 | } |
5494 | } | |
5495 | ||
5496 | ||
1d361a81 BP |
5497 | /* Copy actions 'a' through 'end' to ctx->frozen_actions, which will be |
5498 | * executed after thawing. Inserts an UNROLL_XLATE action, if none is already | |
5499 | * present, before any action that may depend on the current table ID or flow | |
5500 | * cookie. */ | |
e672ff9b | 5501 | static void |
1d361a81 | 5502 | freeze_unroll_actions(const struct ofpact *a, const struct ofpact *end, |
e672ff9b JR |
5503 | struct xlate_ctx *ctx) |
5504 | { | |
c2b283b7 | 5505 | for (; a < end; a = ofpact_next(a)) { |
e672ff9b | 5506 | switch (a->type) { |
e672ff9b | 5507 | case OFPACT_OUTPUT_REG: |
aaca4fe0 | 5508 | case OFPACT_OUTPUT_TRUNC: |
e672ff9b JR |
5509 | case OFPACT_GROUP: |
5510 | case OFPACT_OUTPUT: | |
5511 | case OFPACT_CONTROLLER: | |
5512 | case OFPACT_DEC_MPLS_TTL: | |
491e05c2 | 5513 | case OFPACT_DEC_NSH_TTL: |
e672ff9b | 5514 | case OFPACT_DEC_TTL: |
83a31283 BP |
5515 | /* These actions may generate asynchronous messages, which include |
5516 | * table ID and flow cookie information. */ | |
1d361a81 | 5517 | freeze_put_unroll_xlate(ctx); |
e672ff9b JR |
5518 | break; |
5519 | ||
83a31283 BP |
5520 | case OFPACT_RESUBMIT: |
5521 | if (ofpact_get_RESUBMIT(a)->table_id == 0xff) { | |
5522 | /* This resubmit action is relative to the current table, so we | |
5523 | * need to track what table that is.*/ | |
1d361a81 | 5524 | freeze_put_unroll_xlate(ctx); |
83a31283 BP |
5525 | } |
5526 | break; | |
5527 | ||
e672ff9b JR |
5528 | case OFPACT_SET_TUNNEL: |
5529 | case OFPACT_REG_MOVE: | |
5530 | case OFPACT_SET_FIELD: | |
5531 | case OFPACT_STACK_PUSH: | |
5532 | case OFPACT_STACK_POP: | |
5533 | case OFPACT_LEARN: | |
5534 | case OFPACT_WRITE_METADATA: | |
83a31283 | 5535 | case OFPACT_GOTO_TABLE: |
e672ff9b JR |
5536 | case OFPACT_ENQUEUE: |
5537 | case OFPACT_SET_VLAN_VID: | |
5538 | case OFPACT_SET_VLAN_PCP: | |
5539 | case OFPACT_STRIP_VLAN: | |
5540 | case OFPACT_PUSH_VLAN: | |
5541 | case OFPACT_SET_ETH_SRC: | |
5542 | case OFPACT_SET_ETH_DST: | |
5543 | case OFPACT_SET_IPV4_SRC: | |
5544 | case OFPACT_SET_IPV4_DST: | |
5545 | case OFPACT_SET_IP_DSCP: | |
5546 | case OFPACT_SET_IP_ECN: | |
5547 | case OFPACT_SET_IP_TTL: | |
5548 | case OFPACT_SET_L4_SRC_PORT: | |
5549 | case OFPACT_SET_L4_DST_PORT: | |
5550 | case OFPACT_SET_QUEUE: | |
5551 | case OFPACT_POP_QUEUE: | |
5552 | case OFPACT_PUSH_MPLS: | |
5553 | case OFPACT_POP_MPLS: | |
5554 | case OFPACT_SET_MPLS_LABEL: | |
5555 | case OFPACT_SET_MPLS_TC: | |
5556 | case OFPACT_SET_MPLS_TTL: | |
5557 | case OFPACT_MULTIPATH: | |
5558 | case OFPACT_BUNDLE: | |
5559 | case OFPACT_EXIT: | |
5560 | case OFPACT_UNROLL_XLATE: | |
5561 | case OFPACT_FIN_TIMEOUT: | |
5562 | case OFPACT_CLEAR_ACTIONS: | |
5563 | case OFPACT_WRITE_ACTIONS: | |
5564 | case OFPACT_METER: | |
5565 | case OFPACT_SAMPLE: | |
7ae62a67 | 5566 | case OFPACT_CLONE: |
f839892a JS |
5567 | case OFPACT_ENCAP: |
5568 | case OFPACT_DECAP: | |
d4abaff5 | 5569 | case OFPACT_DEBUG_RECIRC: |
a934a3dd | 5570 | case OFPACT_DEBUG_SLOW: |
07659514 | 5571 | case OFPACT_CT: |
72fe7578 | 5572 | case OFPACT_CT_CLEAR: |
9ac0aada | 5573 | case OFPACT_NAT: |
83a31283 | 5574 | /* These may not generate PACKET INs. */ |
e672ff9b JR |
5575 | break; |
5576 | ||
e672ff9b JR |
5577 | case OFPACT_NOTE: |
5578 | case OFPACT_CONJUNCTION: | |
83a31283 | 5579 | /* These need not be copied for restoration. */ |
e672ff9b JR |
5580 | continue; |
5581 | } | |
5582 | /* Copy the action over. */ | |
1d361a81 | 5583 | ofpbuf_put(&ctx->frozen_actions, a, OFPACT_ALIGN(a->len)); |
e672ff9b JR |
5584 | } |
5585 | } | |
5586 | ||
8e53fe8c | 5587 | static void |
f2d105b5 JS |
5588 | put_ct_mark(const struct flow *flow, struct ofpbuf *odp_actions, |
5589 | struct flow_wildcards *wc) | |
8e53fe8c | 5590 | { |
2a754f4a JS |
5591 | if (wc->masks.ct_mark) { |
5592 | struct { | |
5593 | uint32_t key; | |
5594 | uint32_t mask; | |
5595 | } *odp_ct_mark; | |
5596 | ||
5597 | odp_ct_mark = nl_msg_put_unspec_uninit(odp_actions, OVS_CT_ATTR_MARK, | |
5598 | sizeof(*odp_ct_mark)); | |
5599 | odp_ct_mark->key = flow->ct_mark & wc->masks.ct_mark; | |
5600 | odp_ct_mark->mask = wc->masks.ct_mark; | |
8e53fe8c JS |
5601 | } |
5602 | } | |
5603 | ||
9daf2348 | 5604 | static void |
f2d105b5 JS |
5605 | put_ct_label(const struct flow *flow, struct ofpbuf *odp_actions, |
5606 | struct flow_wildcards *wc) | |
9daf2348 | 5607 | { |
2ff8484b | 5608 | if (!ovs_u128_is_zero(wc->masks.ct_label)) { |
9daf2348 JS |
5609 | struct { |
5610 | ovs_u128 key; | |
5611 | ovs_u128 mask; | |
89cf41ec | 5612 | } odp_ct_label; |
9daf2348 | 5613 | |
89cf41ec BP |
5614 | odp_ct_label.key = ovs_u128_and(flow->ct_label, wc->masks.ct_label); |
5615 | odp_ct_label.mask = wc->masks.ct_label; | |
5616 | nl_msg_put_unspec(odp_actions, OVS_CT_ATTR_LABELS, | |
5617 | &odp_ct_label, sizeof odp_ct_label); | |
9daf2348 JS |
5618 | } |
5619 | } | |
5620 | ||
d787ad39 | 5621 | static void |
2d9b49dd BP |
5622 | put_ct_helper(struct xlate_ctx *ctx, |
5623 | struct ofpbuf *odp_actions, struct ofpact_conntrack *ofc) | |
d787ad39 JS |
5624 | { |
5625 | if (ofc->alg) { | |
40c7b2fc JS |
5626 | switch(ofc->alg) { |
5627 | case IPPORT_FTP: | |
d787ad39 | 5628 | nl_msg_put_string(odp_actions, OVS_CT_ATTR_HELPER, "ftp"); |
40c7b2fc JS |
5629 | break; |
5630 | case IPPORT_TFTP: | |
5631 | nl_msg_put_string(odp_actions, OVS_CT_ATTR_HELPER, "tftp"); | |
5632 | break; | |
5633 | default: | |
2d9b49dd | 5634 | xlate_report_error(ctx, "cannot serialize ct_helper %d", ofc->alg); |
40c7b2fc | 5635 | break; |
d787ad39 JS |
5636 | } |
5637 | } | |
5638 | } | |
5639 | ||
9ac0aada JR |
5640 | static void |
5641 | put_ct_nat(struct xlate_ctx *ctx) | |
5642 | { | |
5643 | struct ofpact_nat *ofn = ctx->ct_nat_action; | |
5644 | size_t nat_offset; | |
5645 | ||
5646 | if (!ofn) { | |
5647 | return; | |
5648 | } | |
5649 | ||
5650 | nat_offset = nl_msg_start_nested(ctx->odp_actions, OVS_CT_ATTR_NAT); | |
5651 | if (ofn->flags & NX_NAT_F_SRC || ofn->flags & NX_NAT_F_DST) { | |
5652 | nl_msg_put_flag(ctx->odp_actions, ofn->flags & NX_NAT_F_SRC | |
5653 | ? OVS_NAT_ATTR_SRC : OVS_NAT_ATTR_DST); | |
5654 | if (ofn->flags & NX_NAT_F_PERSISTENT) { | |
5655 | nl_msg_put_flag(ctx->odp_actions, OVS_NAT_ATTR_PERSISTENT); | |
5656 | } | |
5657 | if (ofn->flags & NX_NAT_F_PROTO_HASH) { | |
5658 | nl_msg_put_flag(ctx->odp_actions, OVS_NAT_ATTR_PROTO_HASH); | |
5659 | } else if (ofn->flags & NX_NAT_F_PROTO_RANDOM) { | |
5660 | nl_msg_put_flag(ctx->odp_actions, OVS_NAT_ATTR_PROTO_RANDOM); | |
5661 | } | |
5662 | if (ofn->range_af == AF_INET) { | |
73e8bc23 | 5663 | nl_msg_put_be32(ctx->odp_actions, OVS_NAT_ATTR_IP_MIN, |
9ac0aada JR |
5664 | ofn->range.addr.ipv4.min); |
5665 | if (ofn->range.addr.ipv4.max && | |
73e8bc23 BP |
5666 | (ntohl(ofn->range.addr.ipv4.max) |
5667 | > ntohl(ofn->range.addr.ipv4.min))) { | |
5668 | nl_msg_put_be32(ctx->odp_actions, OVS_NAT_ATTR_IP_MAX, | |
5669 | ofn->range.addr.ipv4.max); | |
9ac0aada JR |
5670 | } |
5671 | } else if (ofn->range_af == AF_INET6) { | |
5672 | nl_msg_put_unspec(ctx->odp_actions, OVS_NAT_ATTR_IP_MIN, | |
5673 | &ofn->range.addr.ipv6.min, | |
5674 | sizeof ofn->range.addr.ipv6.min); | |
5675 | if (!ipv6_mask_is_any(&ofn->range.addr.ipv6.max) && | |
5676 | memcmp(&ofn->range.addr.ipv6.max, &ofn->range.addr.ipv6.min, | |
5677 | sizeof ofn->range.addr.ipv6.max) > 0) { | |
5678 | nl_msg_put_unspec(ctx->odp_actions, OVS_NAT_ATTR_IP_MAX, | |
5679 | &ofn->range.addr.ipv6.max, | |
5680 | sizeof ofn->range.addr.ipv6.max); | |
5681 | } | |
5682 | } | |
5683 | if (ofn->range_af != AF_UNSPEC && ofn->range.proto.min) { | |
5684 | nl_msg_put_u16(ctx->odp_actions, OVS_NAT_ATTR_PROTO_MIN, | |
5685 | ofn->range.proto.min); | |
5686 | if (ofn->range.proto.max && | |
5687 | ofn->range.proto.max > ofn->range.proto.min) { | |
5688 | nl_msg_put_u16(ctx->odp_actions, OVS_NAT_ATTR_PROTO_MAX, | |
5689 | ofn->range.proto.max); | |
5690 | } | |
5691 | } | |
5692 | } | |
5693 | nl_msg_end_nested(ctx->odp_actions, nat_offset); | |
5694 | } | |
5695 | ||
07659514 | 5696 | static void |
feee58b9 AZ |
5697 | compose_conntrack_action(struct xlate_ctx *ctx, struct ofpact_conntrack *ofc, |
5698 | bool is_last_action) | |
07659514 | 5699 | { |
f2d105b5 | 5700 | ovs_u128 old_ct_label_mask = ctx->wc->masks.ct_label; |
f2d105b5 | 5701 | uint32_t old_ct_mark_mask = ctx->wc->masks.ct_mark; |
07659514 JS |
5702 | size_t ct_offset; |
5703 | uint16_t zone; | |
5704 | ||
5705 | /* Ensure that any prior actions are applied before composing the new | |
5706 | * conntrack action. */ | |
5707 | xlate_commit_actions(ctx); | |
5708 | ||
8e53fe8c | 5709 | /* Process nested actions first, to populate the key. */ |
9ac0aada | 5710 | ctx->ct_nat_action = NULL; |
f2d105b5 | 5711 | ctx->wc->masks.ct_mark = 0; |
f6fabcc6 | 5712 | ctx->wc->masks.ct_label = OVS_U128_ZERO; |
feee58b9 AZ |
5713 | do_xlate_actions(ofc->actions, ofpact_ct_get_action_len(ofc), ctx, |
5714 | is_last_action); | |
8e53fe8c | 5715 | |
07659514 JS |
5716 | if (ofc->zone_src.field) { |
5717 | zone = mf_get_subfield(&ofc->zone_src, &ctx->xin->flow); | |
5718 | } else { | |
5719 | zone = ofc->zone_imm; | |
5720 | } | |
5721 | ||
5722 | ct_offset = nl_msg_start_nested(ctx->odp_actions, OVS_ACTION_ATTR_CT); | |
5723 | if (ofc->flags & NX_CT_F_COMMIT) { | |
a76a37ef JR |
5724 | nl_msg_put_flag(ctx->odp_actions, ofc->flags & NX_CT_F_FORCE ? |
5725 | OVS_CT_ATTR_FORCE_COMMIT : OVS_CT_ATTR_COMMIT); | |
adfe7a0b JR |
5726 | if (ctx->xbridge->support.ct_eventmask) { |
5727 | nl_msg_put_u32(ctx->odp_actions, OVS_CT_ATTR_EVENTMASK, | |
975954af | 5728 | OVS_CT_EVENTMASK_DEFAULT); |
adfe7a0b | 5729 | } |
07659514 JS |
5730 | } |
5731 | nl_msg_put_u16(ctx->odp_actions, OVS_CT_ATTR_ZONE, zone); | |
f2d105b5 JS |
5732 | put_ct_mark(&ctx->xin->flow, ctx->odp_actions, ctx->wc); |
5733 | put_ct_label(&ctx->xin->flow, ctx->odp_actions, ctx->wc); | |
2d9b49dd | 5734 | put_ct_helper(ctx, ctx->odp_actions, ofc); |
9ac0aada JR |
5735 | put_ct_nat(ctx); |
5736 | ctx->ct_nat_action = NULL; | |
07659514 JS |
5737 | nl_msg_end_nested(ctx->odp_actions, ct_offset); |
5738 | ||
f2d105b5 | 5739 | ctx->wc->masks.ct_mark = old_ct_mark_mask; |
f2d105b5 | 5740 | ctx->wc->masks.ct_label = old_ct_label_mask; |
8e53fe8c | 5741 | |
f6fabcc6 | 5742 | if (ofc->recirc_table != NX_CT_RECIRC_NONE) { |
07659514 | 5743 | ctx->conntracked = true; |
5fdd80cc | 5744 | compose_recirculate_and_fork(ctx, ofc->recirc_table, zone); |
07659514 | 5745 | } |
f6fabcc6 JP |
5746 | |
5747 | /* The ct_* fields are only available in the scope of the 'recirc_table' | |
5748 | * call chain. */ | |
5749 | flow_clear_conntrack(&ctx->xin->flow); | |
5750 | ctx->conntracked = false; | |
07659514 JS |
5751 | } |
5752 | ||
88a20f8c EG |
5753 | static void |
5754 | compose_ct_clear_action(struct xlate_ctx *ctx) | |
5755 | { | |
5756 | clear_conntrack(ctx); | |
5757 | /* This action originally existed without dpif support. So to preserve | |
5758 | * compatibility, only append it if the dpif supports it. */ | |
5759 | if (ctx->xbridge->support.ct_clear) { | |
5760 | nl_msg_put_flag(ctx->odp_actions, OVS_ACTION_ATTR_CT_CLEAR); | |
5761 | } | |
5762 | } | |
5763 | ||
f839892a JS |
5764 | static void |
5765 | rewrite_flow_encap_ethernet(struct xlate_ctx *ctx, | |
5766 | struct flow *flow, | |
5767 | struct flow_wildcards *wc) | |
5768 | { | |
5769 | wc->masks.packet_type = OVS_BE32_MAX; | |
5770 | if (pt_ns(flow->packet_type) == OFPHTN_ETHERTYPE) { | |
5771 | /* Only adjust the packet_type and zero the dummy Ethernet addresses. */ | |
5772 | ovs_be16 ethertype = pt_ns_type_be(flow->packet_type); | |
5773 | flow->packet_type = htonl(PT_ETH); | |
5774 | flow->dl_src = eth_addr_zero; | |
5775 | flow->dl_dst = eth_addr_zero; | |
5776 | flow->dl_type = ethertype; | |
5777 | } else { | |
1fc11c59 | 5778 | /* Error handling: drop packet. */ |
f839892a | 5779 | xlate_report_debug(ctx, OFT_ACTION, |
1fc11c59 JS |
5780 | "Dropping packet as encap(ethernet) is not " |
5781 | "supported for packet type ethernet."); | |
7873e106 | 5782 | ctx->error = XLATE_UNSUPPORTED_PACKET_TYPE; |
f839892a JS |
5783 | } |
5784 | } | |
5785 | ||
1fc11c59 JS |
5786 | /* For an MD2 NSH header returns a pointer to an ofpbuf with the encoded |
5787 | * MD2 TLVs provided as encap properties to the encap operation. This | |
f59cb331 | 5788 | * will be stored as encap_data in the ctx and copied into the push_nsh |
1fc11c59 JS |
5789 | * action at the next commit. */ |
5790 | static struct ofpbuf * | |
f59cb331 YY |
5791 | rewrite_flow_push_nsh(struct xlate_ctx *ctx, |
5792 | const struct ofpact_encap *encap, | |
5793 | struct flow *flow, | |
5794 | struct flow_wildcards *wc) | |
1fc11c59 JS |
5795 | { |
5796 | ovs_be32 packet_type = flow->packet_type; | |
5797 | const char *ptr = (char *) encap->props; | |
f59cb331 | 5798 | struct ofpbuf *buf = ofpbuf_new(NSH_CTX_HDRS_MAX_LEN); |
1fc11c59 JS |
5799 | uint8_t md_type = NSH_M_TYPE1; |
5800 | uint8_t np = 0; | |
5801 | int i; | |
5802 | ||
5803 | /* Scan the optional NSH encap TLV properties, if any. */ | |
5804 | for (i = 0; i < encap->n_props; i++) { | |
5805 | struct ofpact_ed_prop *prop_ptr = | |
5806 | ALIGNED_CAST(struct ofpact_ed_prop *, ptr); | |
5807 | if (prop_ptr->prop_class == OFPPPC_NSH) { | |
5808 | switch (prop_ptr->type) { | |
5809 | case OFPPPT_PROP_NSH_MDTYPE: { | |
5810 | struct ofpact_ed_prop_nsh_md_type *prop_md_type = | |
5811 | ALIGNED_CAST(struct ofpact_ed_prop_nsh_md_type *, | |
5812 | prop_ptr); | |
5813 | md_type = prop_md_type->md_type; | |
5814 | break; | |
5815 | } | |
5816 | case OFPPPT_PROP_NSH_TLV: { | |
5817 | struct ofpact_ed_prop_nsh_tlv *tlv_prop = | |
5818 | ALIGNED_CAST(struct ofpact_ed_prop_nsh_tlv *, | |
5819 | prop_ptr); | |
5820 | struct nsh_md2_tlv *md2_ctx = | |
5821 | ofpbuf_put_uninit(buf, sizeof(*md2_ctx)); | |
5822 | md2_ctx->md_class = tlv_prop->tlv_class; | |
5823 | md2_ctx->type = tlv_prop->tlv_type; | |
5824 | md2_ctx->length = tlv_prop->tlv_len; | |
5825 | size_t len = ROUND_UP(md2_ctx->length, 4); | |
5826 | size_t padding = len - md2_ctx->length; | |
5827 | ofpbuf_put(buf, tlv_prop->data, md2_ctx->length); | |
5828 | ofpbuf_put_zeros(buf, padding); | |
5829 | break; | |
5830 | } | |
5831 | default: | |
5832 | /* No other NSH encap properties defined yet. */ | |
5833 | break; | |
5834 | } | |
5835 | } | |
5836 | ptr += ROUND_UP(prop_ptr->len, 8); | |
5837 | } | |
f59cb331 | 5838 | if (buf->size == 0 || buf->size > NSH_CTX_HDRS_MAX_LEN) { |
1fc11c59 JS |
5839 | ofpbuf_delete(buf); |
5840 | buf = NULL; | |
5841 | } | |
5842 | ||
5843 | /* Determine the Next Protocol field for NSH header. */ | |
5844 | switch (ntohl(packet_type)) { | |
5845 | case PT_ETH: | |
5846 | np = NSH_P_ETHERNET; | |
5847 | break; | |
5848 | case PT_IPV4: | |
5849 | np = NSH_P_IPV4; | |
5850 | break; | |
5851 | case PT_IPV6: | |
5852 | np = NSH_P_IPV6; | |
5853 | break; | |
5854 | case PT_NSH: | |
5855 | np = NSH_P_NSH; | |
5856 | break; | |
5857 | default: | |
5858 | /* Error handling: drop packet. */ | |
5859 | xlate_report_debug(ctx, OFT_ACTION, | |
5860 | "Dropping packet as encap(nsh) is not " | |
5861 | "supported for packet type (%d,0x%x)", | |
5862 | pt_ns(packet_type), pt_ns_type(packet_type)); | |
7873e106 | 5863 | ctx->error = XLATE_UNSUPPORTED_PACKET_TYPE; |
1fc11c59 JS |
5864 | return buf; |
5865 | } | |
5866 | /* Note that we have matched on packet_type! */ | |
5867 | wc->masks.packet_type = OVS_BE32_MAX; | |
5868 | ||
5869 | /* Reset all current flow packet headers. */ | |
5870 | memset(&flow->dl_dst, 0, | |
5871 | sizeof(struct flow) - offsetof(struct flow, dl_dst)); | |
5872 | ||
5873 | /* Populate the flow with the new NSH header. */ | |
5874 | flow->packet_type = htonl(PT_NSH); | |
5875 | flow->dl_type = htons(ETH_TYPE_NSH); | |
17553f27 YY |
5876 | flow->nsh.flags = 0; |
5877 | flow->nsh.ttl = 63; | |
1fc11c59 | 5878 | flow->nsh.np = np; |
17553f27 | 5879 | flow->nsh.path_hdr = htonl(255); |
1fc11c59 JS |
5880 | |
5881 | if (md_type == NSH_M_TYPE1) { | |
5882 | flow->nsh.mdtype = NSH_M_TYPE1; | |
f59cb331 | 5883 | memset(flow->nsh.context, 0, sizeof flow->nsh.context); |
1fc11c59 JS |
5884 | if (buf) { |
5885 | /* Drop any MD2 context TLVs. */ | |
5886 | ofpbuf_delete(buf); | |
5887 | buf = NULL; | |
5888 | } | |
5889 | } else if (md_type == NSH_M_TYPE2) { | |
5890 | flow->nsh.mdtype = NSH_M_TYPE2; | |
5891 | } | |
17553f27 | 5892 | flow->nsh.mdtype &= NSH_MDTYPE_MASK; |
1fc11c59 JS |
5893 | |
5894 | return buf; | |
5895 | } | |
5896 | ||
f839892a JS |
5897 | static void |
5898 | xlate_generic_encap_action(struct xlate_ctx *ctx, | |
5899 | const struct ofpact_encap *encap) | |
5900 | { | |
5901 | struct flow *flow = &ctx->xin->flow; | |
5902 | struct flow_wildcards *wc = ctx->wc; | |
1fc11c59 | 5903 | struct ofpbuf *encap_data = NULL; |
f839892a JS |
5904 | |
5905 | /* Ensure that any pending actions on the inner packet are applied before | |
5906 | * rewriting the flow */ | |
5907 | xlate_commit_actions(ctx); | |
5908 | ||
5909 | /* Rewrite the flow to reflect the effect of pushing the new encap header. */ | |
5910 | switch (ntohl(encap->new_pkt_type)) { | |
5911 | case PT_ETH: | |
5912 | rewrite_flow_encap_ethernet(ctx, flow, wc); | |
5913 | break; | |
1fc11c59 | 5914 | case PT_NSH: |
f59cb331 | 5915 | encap_data = rewrite_flow_push_nsh(ctx, encap, flow, wc); |
1fc11c59 | 5916 | break; |
f839892a | 5917 | default: |
1fc11c59 JS |
5918 | /* New packet type was checked during decoding. */ |
5919 | OVS_NOT_REACHED(); | |
f839892a JS |
5920 | } |
5921 | ||
5922 | if (!ctx->error) { | |
5923 | /* The actual encap datapath action will be generated at next commit. */ | |
5924 | ctx->pending_encap = true; | |
1fc11c59 | 5925 | ctx->encap_data = encap_data; |
f839892a JS |
5926 | } |
5927 | } | |
5928 | ||
5929 | /* Returns true if packet must be recirculated after decapsulation. */ | |
5930 | static bool | |
5931 | xlate_generic_decap_action(struct xlate_ctx *ctx, | |
5932 | const struct ofpact_decap *decap OVS_UNUSED) | |
5933 | { | |
5934 | struct flow *flow = &ctx->xin->flow; | |
5935 | ||
5936 | /* Ensure that any pending actions on the current packet are applied | |
5937 | * before generating the decap action. */ | |
5938 | xlate_commit_actions(ctx); | |
5939 | ||
5940 | /* We assume for now that the new_pkt_type is PT_USE_NEXT_PROTO. */ | |
5941 | switch (ntohl(flow->packet_type)) { | |
5942 | case PT_ETH: | |
5943 | if (flow->vlans[0].tci & htons(VLAN_CFI)) { | |
5944 | /* Error handling: drop packet. */ | |
5945 | xlate_report_debug(ctx, OFT_ACTION, "Dropping packet, cannot " | |
5946 | "decap Ethernet if VLAN is present."); | |
7873e106 | 5947 | ctx->error = XLATE_UNSUPPORTED_PACKET_TYPE; |
f839892a JS |
5948 | } else { |
5949 | /* Just change the packet_type. | |
5950 | * Delay generating pop_eth to the next commit. */ | |
5951 | flow->packet_type = htonl(PACKET_TYPE(OFPHTN_ETHERTYPE, | |
5952 | ntohs(flow->dl_type))); | |
5953 | ctx->wc->masks.dl_type = OVS_BE16_MAX; | |
5954 | } | |
5955 | return false; | |
1fc11c59 | 5956 | case PT_NSH: |
f59cb331 | 5957 | /* The pop_nsh action is generated at the commit executed as |
1fc11c59 JS |
5958 | * part of freezing the ctx for recirculation. Here we just set |
5959 | * the new packet type based on the NSH next protocol field. */ | |
5960 | switch (flow->nsh.np) { | |
5961 | case NSH_P_ETHERNET: | |
5962 | flow->packet_type = htonl(PT_ETH); | |
5963 | break; | |
5964 | case NSH_P_IPV4: | |
5965 | flow->packet_type = htonl(PT_IPV4); | |
5966 | break; | |
5967 | case NSH_P_IPV6: | |
5968 | flow->packet_type = htonl(PT_IPV6); | |
5969 | break; | |
5970 | case NSH_P_NSH: | |
5971 | flow->packet_type = htonl(PT_NSH); | |
5972 | break; | |
5973 | default: | |
5974 | /* Error handling: drop packet. */ | |
5975 | xlate_report_debug(ctx, OFT_ACTION, | |
5976 | "Dropping packet as NSH next protocol %d " | |
5977 | "is not supported", flow->nsh.np); | |
7873e106 | 5978 | ctx->error = XLATE_UNSUPPORTED_PACKET_TYPE; |
1fc11c59 JS |
5979 | return false; |
5980 | break; | |
5981 | } | |
5982 | ctx->wc->masks.nsh.np = UINT8_MAX; | |
5983 | /* Trigger recirculation. */ | |
5984 | return true; | |
f839892a | 5985 | default: |
1fc11c59 JS |
5986 | /* Error handling: drop packet. */ |
5987 | xlate_report_debug( | |
5988 | ctx, OFT_ACTION, | |
5989 | "Dropping packet as the decap() does not support " | |
5990 | "packet type (%d,0x%x)", | |
5991 | pt_ns(flow->packet_type), pt_ns_type(flow->packet_type)); | |
7873e106 | 5992 | ctx->error = XLATE_UNSUPPORTED_PACKET_TYPE; |
f839892a JS |
5993 | return false; |
5994 | } | |
5995 | } | |
5996 | ||
e12ec36b SH |
5997 | static void |
5998 | recirc_for_mpls(const struct ofpact *a, struct xlate_ctx *ctx) | |
5999 | { | |
6000 | /* No need to recirculate if already exiting. */ | |
6001 | if (ctx->exit) { | |
6002 | return; | |
6003 | } | |
6004 | ||
6005 | /* Do not consider recirculating unless the packet was previously MPLS. */ | |
6006 | if (!ctx->was_mpls) { | |
6007 | return; | |
6008 | } | |
6009 | ||
6010 | /* Special case these actions, only recirculating if necessary. | |
6011 | * This avoids the overhead of recirculation in common use-cases. | |
6012 | */ | |
6013 | switch (a->type) { | |
6014 | ||
6015 | /* Output actions do not require recirculation. */ | |
6016 | case OFPACT_OUTPUT: | |
aaca4fe0 | 6017 | case OFPACT_OUTPUT_TRUNC: |
e12ec36b SH |
6018 | case OFPACT_ENQUEUE: |
6019 | case OFPACT_OUTPUT_REG: | |
6020 | /* Set actions that don't touch L3+ fields do not require recirculation. */ | |
6021 | case OFPACT_SET_VLAN_VID: | |
6022 | case OFPACT_SET_VLAN_PCP: | |
6023 | case OFPACT_SET_ETH_SRC: | |
6024 | case OFPACT_SET_ETH_DST: | |
6025 | case OFPACT_SET_TUNNEL: | |
6026 | case OFPACT_SET_QUEUE: | |
6027 | /* If actions of a group require recirculation that can be detected | |
6028 | * when translating them. */ | |
6029 | case OFPACT_GROUP: | |
6030 | return; | |
6031 | ||
6032 | /* Set field that don't touch L3+ fields don't require recirculation. */ | |
6033 | case OFPACT_SET_FIELD: | |
6034 | if (mf_is_l3_or_higher(ofpact_get_SET_FIELD(a)->field)) { | |
6035 | break; | |
6036 | } | |
6037 | return; | |
6038 | ||
6039 | /* For simplicity, recirculate in all other cases. */ | |
6040 | case OFPACT_CONTROLLER: | |
6041 | case OFPACT_BUNDLE: | |
6042 | case OFPACT_STRIP_VLAN: | |
6043 | case OFPACT_PUSH_VLAN: | |
6044 | case OFPACT_SET_IPV4_SRC: | |
6045 | case OFPACT_SET_IPV4_DST: | |
6046 | case OFPACT_SET_IP_DSCP: | |
6047 | case OFPACT_SET_IP_ECN: | |
6048 | case OFPACT_SET_IP_TTL: | |
6049 | case OFPACT_SET_L4_SRC_PORT: | |
6050 | case OFPACT_SET_L4_DST_PORT: | |
6051 | case OFPACT_REG_MOVE: | |
6052 | case OFPACT_STACK_PUSH: | |
6053 | case OFPACT_STACK_POP: | |
6054 | case OFPACT_DEC_TTL: | |
6055 | case OFPACT_SET_MPLS_LABEL: | |
6056 | case OFPACT_SET_MPLS_TC: | |
6057 | case OFPACT_SET_MPLS_TTL: | |
6058 | case OFPACT_DEC_MPLS_TTL: | |
6059 | case OFPACT_PUSH_MPLS: | |
6060 | case OFPACT_POP_MPLS: | |
6061 | case OFPACT_POP_QUEUE: | |
6062 | case OFPACT_FIN_TIMEOUT: | |
6063 | case OFPACT_RESUBMIT: | |
6064 | case OFPACT_LEARN: | |
6065 | case OFPACT_CONJUNCTION: | |
6066 | case OFPACT_MULTIPATH: | |
6067 | case OFPACT_NOTE: | |
6068 | case OFPACT_EXIT: | |
6069 | case OFPACT_SAMPLE: | |
7ae62a67 | 6070 | case OFPACT_CLONE: |
f839892a JS |
6071 | case OFPACT_ENCAP: |
6072 | case OFPACT_DECAP: | |
491e05c2 | 6073 | case OFPACT_DEC_NSH_TTL: |
e12ec36b SH |
6074 | case OFPACT_UNROLL_XLATE: |
6075 | case OFPACT_CT: | |
72fe7578 | 6076 | case OFPACT_CT_CLEAR: |
e12ec36b SH |
6077 | case OFPACT_NAT: |
6078 | case OFPACT_DEBUG_RECIRC: | |
a934a3dd | 6079 | case OFPACT_DEBUG_SLOW: |
e12ec36b SH |
6080 | case OFPACT_METER: |
6081 | case OFPACT_CLEAR_ACTIONS: | |
6082 | case OFPACT_WRITE_ACTIONS: | |
6083 | case OFPACT_WRITE_METADATA: | |
6084 | case OFPACT_GOTO_TABLE: | |
6085 | default: | |
6086 | break; | |
6087 | } | |
6088 | ||
6089 | /* Recirculate */ | |
6090 | ctx_trigger_freeze(ctx); | |
6091 | } | |
6092 | ||
2d9b49dd BP |
6093 | static void |
6094 | xlate_ofpact_reg_move(struct xlate_ctx *ctx, const struct ofpact_reg_move *a) | |
6095 | { | |
6096 | mf_subfield_copy(&a->src, &a->dst, &ctx->xin->flow, ctx->wc); | |
6097 | xlate_report_subfield(ctx, &a->dst); | |
6098 | } | |
6099 | ||
6100 | static void | |
6101 | xlate_ofpact_stack_pop(struct xlate_ctx *ctx, const struct ofpact_stack *a) | |
6102 | { | |
6103 | if (nxm_execute_stack_pop(a, &ctx->xin->flow, ctx->wc, &ctx->stack)) { | |
6104 | xlate_report_subfield(ctx, &a->subfield); | |
6105 | } else { | |
6106 | xlate_report_error(ctx, "stack underflow"); | |
6107 | } | |
6108 | } | |
6109 | ||
6110 | /* Restore translation context data that was stored earlier. */ | |
6111 | static void | |
6112 | xlate_ofpact_unroll_xlate(struct xlate_ctx *ctx, | |
6113 | const struct ofpact_unroll_xlate *a) | |
6114 | { | |
6115 | ctx->table_id = a->rule_table_id; | |
6116 | ctx->rule_cookie = a->rule_cookie; | |
6117 | xlate_report(ctx, OFT_THAW, "restored state: table=%"PRIu8", " | |
6118 | "cookie=%#"PRIx64, a->rule_table_id, a->rule_cookie); | |
6119 | } | |
6120 | ||
9583bc14 EJ |
6121 | static void |
6122 | do_xlate_actions(const struct ofpact *ofpacts, size_t ofpacts_len, | |
feee58b9 | 6123 | struct xlate_ctx *ctx, bool is_last_action) |
9583bc14 | 6124 | { |
49a73e0c | 6125 | struct flow_wildcards *wc = ctx->wc; |
33bf9176 | 6126 | struct flow *flow = &ctx->xin->flow; |
9583bc14 EJ |
6127 | const struct ofpact *a; |
6128 | ||
a36de779 | 6129 | if (ovs_native_tunneling_is_on(ctx->xbridge->ofproto)) { |
53902038 | 6130 | tnl_neigh_snoop(flow, wc, ctx->xbridge->name); |
a36de779 | 6131 | } |
f47ea021 JR |
6132 | /* dl_type already in the mask, not set below. */ |
6133 | ||
2d9b49dd BP |
6134 | if (!ofpacts_len) { |
6135 | xlate_report(ctx, OFT_ACTION, "drop"); | |
6136 | return; | |
6137 | } | |
6138 | ||
9583bc14 EJ |
6139 | OFPACT_FOR_EACH (a, ofpacts, ofpacts_len) { |
6140 | struct ofpact_controller *controller; | |
6141 | const struct ofpact_metadata *metadata; | |
b2dd70be JR |
6142 | const struct ofpact_set_field *set_field; |
6143 | const struct mf_field *mf; | |
feee58b9 AZ |
6144 | bool last = is_last_action && ofpact_last(a, ofpacts, ofpacts_len) |
6145 | && ctx->action_set.size; | |
9583bc14 | 6146 | |
fff1b9c0 JR |
6147 | if (ctx->error) { |
6148 | break; | |
6149 | } | |
6150 | ||
e12ec36b SH |
6151 | recirc_for_mpls(a, ctx); |
6152 | ||
e672ff9b JR |
6153 | if (ctx->exit) { |
6154 | /* Check if need to store the remaining actions for later | |
6155 | * execution. */ | |
1d361a81 BP |
6156 | if (ctx->freezing) { |
6157 | freeze_unroll_actions(a, ofpact_end(ofpacts, ofpacts_len), | |
e672ff9b JR |
6158 | ctx); |
6159 | } | |
6160 | break; | |
7bbdd84f SH |
6161 | } |
6162 | ||
2d9b49dd BP |
6163 | if (OVS_UNLIKELY(ctx->xin->trace)) { |
6164 | struct ds s = DS_EMPTY_INITIALIZER; | |
50f96b10 | 6165 | ofpacts_format(a, OFPACT_ALIGN(a->len), NULL, &s); |
2d9b49dd BP |
6166 | xlate_report(ctx, OFT_ACTION, "%s", ds_cstr(&s)); |
6167 | ds_destroy(&s); | |
6168 | } | |
6169 | ||
9583bc14 EJ |
6170 | switch (a->type) { |
6171 | case OFPACT_OUTPUT: | |
6172 | xlate_output_action(ctx, ofpact_get_OUTPUT(a)->port, | |
8b496c72 BP |
6173 | ofpact_get_OUTPUT(a)->max_len, true, last, |
6174 | false); | |
9583bc14 EJ |
6175 | break; |
6176 | ||
7395c052 | 6177 | case OFPACT_GROUP: |
feee58b9 | 6178 | if (xlate_group_action(ctx, ofpact_get_GROUP(a)->group_id, last)) { |
1d741d6d | 6179 | /* Group could not be found. */ |
db88b35c JR |
6180 | |
6181 | /* XXX: Terminates action list translation, but does not | |
6182 | * terminate the pipeline. */ | |
f4fb341b SH |
6183 | return; |
6184 | } | |
7395c052 NZ |
6185 | break; |
6186 | ||
9583bc14 EJ |
6187 | case OFPACT_CONTROLLER: |
6188 | controller = ofpact_get_CONTROLLER(a); | |
77ab5fd2 BP |
6189 | if (controller->pause) { |
6190 | ctx->pause = controller; | |
77ab5fd2 BP |
6191 | ctx_trigger_freeze(ctx); |
6192 | a = ofpact_next(a); | |
6193 | } else { | |
d39ec23d JP |
6194 | xlate_controller_action(ctx, controller->max_len, |
6195 | controller->reason, | |
6196 | controller->controller_id, | |
6197 | controller->userdata, | |
6198 | controller->userdata_len); | |
77ab5fd2 | 6199 | } |
9583bc14 EJ |
6200 | break; |
6201 | ||
6202 | case OFPACT_ENQUEUE: | |
16194afd DDP |
6203 | memset(&wc->masks.skb_priority, 0xff, |
6204 | sizeof wc->masks.skb_priority); | |
feee58b9 | 6205 | xlate_enqueue_action(ctx, ofpact_get_ENQUEUE(a), last); |
9583bc14 EJ |
6206 | break; |
6207 | ||
6208 | case OFPACT_SET_VLAN_VID: | |
f0fb825a EG |
6209 | wc->masks.vlans[0].tci |= htons(VLAN_VID_MASK | VLAN_CFI); |
6210 | if (flow->vlans[0].tci & htons(VLAN_CFI) || | |
ca287d20 | 6211 | ofpact_get_SET_VLAN_VID(a)->push_vlan_if_needed) { |
f0fb825a EG |
6212 | if (!flow->vlans[0].tpid) { |
6213 | flow->vlans[0].tpid = htons(ETH_TYPE_VLAN); | |
6214 | } | |
6215 | flow->vlans[0].tci &= ~htons(VLAN_VID_MASK); | |
6216 | flow->vlans[0].tci |= | |
6217 | (htons(ofpact_get_SET_VLAN_VID(a)->vlan_vid) | | |
6218 | htons(VLAN_CFI)); | |
ca287d20 | 6219 | } |
9583bc14 EJ |
6220 | break; |
6221 | ||
6222 | case OFPACT_SET_VLAN_PCP: | |
f0fb825a EG |
6223 | wc->masks.vlans[0].tci |= htons(VLAN_PCP_MASK | VLAN_CFI); |
6224 | if (flow->vlans[0].tci & htons(VLAN_CFI) || | |
ca287d20 | 6225 | ofpact_get_SET_VLAN_PCP(a)->push_vlan_if_needed) { |
f0fb825a EG |
6226 | if (!flow->vlans[0].tpid) { |
6227 | flow->vlans[0].tpid = htons(ETH_TYPE_VLAN); | |
6228 | } | |
6229 | flow->vlans[0].tci &= ~htons(VLAN_PCP_MASK); | |
6230 | flow->vlans[0].tci |= | |
6231 | htons((ofpact_get_SET_VLAN_PCP(a)->vlan_pcp | |
6232 | << VLAN_PCP_SHIFT) | VLAN_CFI); | |
ca287d20 | 6233 | } |
9583bc14 EJ |
6234 | break; |
6235 | ||
6236 | case OFPACT_STRIP_VLAN: | |
f0fb825a | 6237 | flow_pop_vlan(flow, wc); |
9583bc14 EJ |
6238 | break; |
6239 | ||
6240 | case OFPACT_PUSH_VLAN: | |
f0fb825a EG |
6241 | flow_push_vlan_uninit(flow, wc); |
6242 | flow->vlans[0].tpid = ofpact_get_PUSH_VLAN(a)->ethertype; | |
6243 | flow->vlans[0].tci = htons(VLAN_CFI); | |
9583bc14 EJ |
6244 | break; |
6245 | ||
6246 | case OFPACT_SET_ETH_SRC: | |
74ff3298 JR |
6247 | WC_MASK_FIELD(wc, dl_src); |
6248 | flow->dl_src = ofpact_get_SET_ETH_SRC(a)->mac; | |
9583bc14 EJ |
6249 | break; |
6250 | ||
6251 | case OFPACT_SET_ETH_DST: | |
74ff3298 JR |
6252 | WC_MASK_FIELD(wc, dl_dst); |
6253 | flow->dl_dst = ofpact_get_SET_ETH_DST(a)->mac; | |
9583bc14 EJ |
6254 | break; |
6255 | ||
6256 | case OFPACT_SET_IPV4_SRC: | |
33bf9176 | 6257 | if (flow->dl_type == htons(ETH_TYPE_IP)) { |
f47ea021 | 6258 | memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src); |
33bf9176 | 6259 | flow->nw_src = ofpact_get_SET_IPV4_SRC(a)->ipv4; |
9583bc14 EJ |
6260 | } |
6261 | break; | |
6262 | ||
6263 | case OFPACT_SET_IPV4_DST: | |
33bf9176 | 6264 | if (flow->dl_type == htons(ETH_TYPE_IP)) { |
f47ea021 | 6265 | memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst); |
33bf9176 | 6266 | flow->nw_dst = ofpact_get_SET_IPV4_DST(a)->ipv4; |
9583bc14 EJ |
6267 | } |
6268 | break; | |
6269 | ||
04f01c24 BP |
6270 | case OFPACT_SET_IP_DSCP: |
6271 | if (is_ip_any(flow)) { | |
f47ea021 | 6272 | wc->masks.nw_tos |= IP_DSCP_MASK; |
33bf9176 | 6273 | flow->nw_tos &= ~IP_DSCP_MASK; |
04f01c24 | 6274 | flow->nw_tos |= ofpact_get_SET_IP_DSCP(a)->dscp; |
9583bc14 EJ |
6275 | } |
6276 | break; | |
6277 | ||
ff14eb7a JR |
6278 | case OFPACT_SET_IP_ECN: |
6279 | if (is_ip_any(flow)) { | |
6280 | wc->masks.nw_tos |= IP_ECN_MASK; | |
6281 | flow->nw_tos &= ~IP_ECN_MASK; | |
6282 | flow->nw_tos |= ofpact_get_SET_IP_ECN(a)->ecn; | |
6283 | } | |
6284 | break; | |
6285 | ||
0c20dbe4 JR |
6286 | case OFPACT_SET_IP_TTL: |
6287 | if (is_ip_any(flow)) { | |
6288 | wc->masks.nw_ttl = 0xff; | |
6289 | flow->nw_ttl = ofpact_get_SET_IP_TTL(a)->ttl; | |
6290 | } | |
6291 | break; | |
6292 | ||
9583bc14 | 6293 | case OFPACT_SET_L4_SRC_PORT: |
b8778a0d | 6294 | if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) { |
f47ea021 JR |
6295 | memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto); |
6296 | memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src); | |
33bf9176 | 6297 | flow->tp_src = htons(ofpact_get_SET_L4_SRC_PORT(a)->port); |
9583bc14 EJ |
6298 | } |
6299 | break; | |
6300 | ||
6301 | case OFPACT_SET_L4_DST_PORT: | |
b8778a0d | 6302 | if (is_ip_any(flow) && !(flow->nw_frag & FLOW_NW_FRAG_LATER)) { |
f47ea021 JR |
6303 | memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto); |
6304 | memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst); | |
33bf9176 | 6305 | flow->tp_dst = htons(ofpact_get_SET_L4_DST_PORT(a)->port); |
9583bc14 EJ |
6306 | } |
6307 | break; | |
6308 | ||
6309 | case OFPACT_RESUBMIT: | |
8bf009bf JR |
6310 | /* Freezing complicates resubmit. Some action in the flow |
6311 | * entry found by resubmit might trigger freezing. If that | |
6312 | * happens, then we do not want to execute the resubmit again after | |
6313 | * during thawing, so we want to skip back to the head of the loop | |
6314 | * to avoid that, only adding any actions that follow the resubmit | |
6315 | * to the frozen actions. | |
6b1c5734 | 6316 | */ |
feee58b9 | 6317 | xlate_ofpact_resubmit(ctx, ofpact_get_RESUBMIT(a), last); |
6b1c5734 | 6318 | continue; |
9583bc14 EJ |
6319 | |
6320 | case OFPACT_SET_TUNNEL: | |
33bf9176 | 6321 | flow->tunnel.tun_id = htonll(ofpact_get_SET_TUNNEL(a)->tun_id); |
9583bc14 EJ |
6322 | break; |
6323 | ||
6324 | case OFPACT_SET_QUEUE: | |
16194afd DDP |
6325 | memset(&wc->masks.skb_priority, 0xff, |
6326 | sizeof wc->masks.skb_priority); | |
9583bc14 EJ |
6327 | xlate_set_queue_action(ctx, ofpact_get_SET_QUEUE(a)->queue_id); |
6328 | break; | |
6329 | ||
6330 | case OFPACT_POP_QUEUE: | |
16194afd DDP |
6331 | memset(&wc->masks.skb_priority, 0xff, |
6332 | sizeof wc->masks.skb_priority); | |
2d9b49dd BP |
6333 | if (flow->skb_priority != ctx->orig_skb_priority) { |
6334 | flow->skb_priority = ctx->orig_skb_priority; | |
6335 | xlate_report(ctx, OFT_DETAIL, "queue = %#"PRIx32, | |
6336 | flow->skb_priority); | |
6337 | } | |
9583bc14 EJ |
6338 | break; |
6339 | ||
6340 | case OFPACT_REG_MOVE: | |
2d9b49dd | 6341 | xlate_ofpact_reg_move(ctx, ofpact_get_REG_MOVE(a)); |
9583bc14 EJ |
6342 | break; |
6343 | ||
b2dd70be JR |
6344 | case OFPACT_SET_FIELD: |
6345 | set_field = ofpact_get_SET_FIELD(a); | |
6346 | mf = set_field->field; | |
b2dd70be | 6347 | |
aff49b8c JR |
6348 | /* Set the field only if the packet actually has it. */ |
6349 | if (mf_are_prereqs_ok(mf, flow, wc)) { | |
128684a6 JR |
6350 | mf_mask_field_masked(mf, ofpact_set_field_mask(set_field), wc); |
6351 | mf_set_flow_value_masked(mf, set_field->value, | |
6352 | ofpact_set_field_mask(set_field), | |
6353 | flow); | |
2d9b49dd BP |
6354 | } else { |
6355 | xlate_report(ctx, OFT_WARN, | |
6356 | "unmet prerequisites for %s, set_field ignored", | |
6357 | mf->name); | |
6358 | ||
b8778a0d | 6359 | } |
b2dd70be JR |
6360 | break; |
6361 | ||
9583bc14 | 6362 | case OFPACT_STACK_PUSH: |
33bf9176 BP |
6363 | nxm_execute_stack_push(ofpact_get_STACK_PUSH(a), flow, wc, |
6364 | &ctx->stack); | |
9583bc14 EJ |
6365 | break; |
6366 | ||
6367 | case OFPACT_STACK_POP: | |
2d9b49dd | 6368 | xlate_ofpact_stack_pop(ctx, ofpact_get_STACK_POP(a)); |
9583bc14 EJ |
6369 | break; |
6370 | ||
6371 | case OFPACT_PUSH_MPLS: | |
8bfd0fda | 6372 | compose_mpls_push_action(ctx, ofpact_get_PUSH_MPLS(a)); |
9583bc14 EJ |
6373 | break; |
6374 | ||
6375 | case OFPACT_POP_MPLS: | |
8bfd0fda | 6376 | compose_mpls_pop_action(ctx, ofpact_get_POP_MPLS(a)->ethertype); |
9583bc14 EJ |
6377 | break; |
6378 | ||
097d4939 | 6379 | case OFPACT_SET_MPLS_LABEL: |
8bfd0fda BP |
6380 | compose_set_mpls_label_action( |
6381 | ctx, ofpact_get_SET_MPLS_LABEL(a)->label); | |
1d741d6d | 6382 | break; |
097d4939 JR |
6383 | |
6384 | case OFPACT_SET_MPLS_TC: | |
8bfd0fda | 6385 | compose_set_mpls_tc_action(ctx, ofpact_get_SET_MPLS_TC(a)->tc); |
097d4939 JR |
6386 | break; |
6387 | ||
9583bc14 | 6388 | case OFPACT_SET_MPLS_TTL: |
8bfd0fda | 6389 | compose_set_mpls_ttl_action(ctx, ofpact_get_SET_MPLS_TTL(a)->ttl); |
9583bc14 EJ |
6390 | break; |
6391 | ||
6392 | case OFPACT_DEC_MPLS_TTL: | |
9cfef3d0 | 6393 | if (compose_dec_mpls_ttl_action(ctx)) { |
ad3efdcb | 6394 | return; |
9583bc14 EJ |
6395 | } |
6396 | break; | |
6397 | ||
491e05c2 YY |
6398 | case OFPACT_DEC_NSH_TTL: |
6399 | if (compose_dec_nsh_ttl_action(ctx)) { | |
6400 | return; | |
6401 | } | |
6402 | break; | |
6403 | ||
9583bc14 | 6404 | case OFPACT_DEC_TTL: |
f74e7df7 | 6405 | wc->masks.nw_ttl = 0xff; |
9583bc14 | 6406 | if (compose_dec_ttl(ctx, ofpact_get_DEC_TTL(a))) { |
ad3efdcb | 6407 | return; |
9583bc14 EJ |
6408 | } |
6409 | break; | |
6410 | ||
6411 | case OFPACT_NOTE: | |
6412 | /* Nothing to do. */ | |
6413 | break; | |
6414 | ||
6415 | case OFPACT_MULTIPATH: | |
33bf9176 | 6416 | multipath_execute(ofpact_get_MULTIPATH(a), flow, wc); |
2d9b49dd | 6417 | xlate_report_subfield(ctx, &ofpact_get_MULTIPATH(a)->dst); |
9583bc14 EJ |
6418 | break; |
6419 | ||
6420 | case OFPACT_BUNDLE: | |
feee58b9 | 6421 | xlate_bundle_action(ctx, ofpact_get_BUNDLE(a), last); |
9583bc14 EJ |
6422 | break; |
6423 | ||
6424 | case OFPACT_OUTPUT_REG: | |
feee58b9 | 6425 | xlate_output_reg_action(ctx, ofpact_get_OUTPUT_REG(a), last); |
9583bc14 EJ |
6426 | break; |
6427 | ||
aaca4fe0 WT |
6428 | case OFPACT_OUTPUT_TRUNC: |
6429 | xlate_output_trunc_action(ctx, ofpact_get_OUTPUT_TRUNC(a)->port, | |
feee58b9 | 6430 | ofpact_get_OUTPUT_TRUNC(a)->max_len, last); |
aaca4fe0 WT |
6431 | break; |
6432 | ||
9583bc14 EJ |
6433 | case OFPACT_LEARN: |
6434 | xlate_learn_action(ctx, ofpact_get_LEARN(a)); | |
6435 | break; | |
6436 | ||
2d9b49dd | 6437 | case OFPACT_CONJUNCTION: |
afc3987b BP |
6438 | /* A flow with a "conjunction" action represents part of a special |
6439 | * kind of "set membership match". Such a flow should not actually | |
6440 | * get executed, but it could via, say, a "packet-out", even though | |
6441 | * that wouldn't be useful. Log it to help debugging. */ | |
2d9b49dd | 6442 | xlate_report_error(ctx, "executing no-op conjunction action"); |
18080541 BP |
6443 | break; |
6444 | ||
9583bc14 EJ |
6445 | case OFPACT_EXIT: |
6446 | ctx->exit = true; | |
6447 | break; | |
6448 | ||
2d9b49dd BP |
6449 | case OFPACT_UNROLL_XLATE: |
6450 | xlate_ofpact_unroll_xlate(ctx, ofpact_get_UNROLL_XLATE(a)); | |
e672ff9b | 6451 | break; |
2d9b49dd | 6452 | |
9583bc14 | 6453 | case OFPACT_FIN_TIMEOUT: |
33bf9176 | 6454 | memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto); |
9583bc14 EJ |
6455 | xlate_fin_timeout(ctx, ofpact_get_FIN_TIMEOUT(a)); |
6456 | break; | |
6457 | ||
6458 | case OFPACT_CLEAR_ACTIONS: | |
2d9b49dd | 6459 | xlate_report_action_set(ctx, "was"); |
7fdb60a7 | 6460 | ofpbuf_clear(&ctx->action_set); |
c61f3870 BP |
6461 | ctx->xin->flow.actset_output = OFPP_UNSET; |
6462 | ctx->action_set_has_group = false; | |
7fdb60a7 SH |
6463 | break; |
6464 | ||
6465 | case OFPACT_WRITE_ACTIONS: | |
7e7e8dbb | 6466 | xlate_write_actions(ctx, ofpact_get_WRITE_ACTIONS(a)); |
2d9b49dd | 6467 | xlate_report_action_set(ctx, "is"); |
9583bc14 EJ |
6468 | break; |
6469 | ||
6470 | case OFPACT_WRITE_METADATA: | |
6471 | metadata = ofpact_get_WRITE_METADATA(a); | |
33bf9176 BP |
6472 | flow->metadata &= ~metadata->mask; |
6473 | flow->metadata |= metadata->metadata & metadata->mask; | |
9583bc14 EJ |
6474 | break; |
6475 | ||
638a19b0 | 6476 | case OFPACT_METER: |
076caa2f | 6477 | xlate_meter_action(ctx, ofpact_get_METER(a)); |
638a19b0 JR |
6478 | break; |
6479 | ||
9583bc14 | 6480 | case OFPACT_GOTO_TABLE: { |
9583bc14 | 6481 | struct ofpact_goto_table *ogt = ofpact_get_GOTO_TABLE(a); |
9583bc14 | 6482 | |
9167fc1a JR |
6483 | ovs_assert(ctx->table_id < ogt->table_id); |
6484 | ||
4468099e | 6485 | xlate_table_action(ctx, ctx->xin->flow.in_port.ofp_port, |
96c3a6e5 AZ |
6486 | ogt->table_id, true, true, false, last, |
6487 | do_xlate_actions); | |
9583bc14 EJ |
6488 | break; |
6489 | } | |
6490 | ||
6491 | case OFPACT_SAMPLE: | |
6492 | xlate_sample_action(ctx, ofpact_get_SAMPLE(a)); | |
6493 | break; | |
d4abaff5 | 6494 | |
7ae62a67 | 6495 | case OFPACT_CLONE: |
feee58b9 | 6496 | compose_clone(ctx, ofpact_get_CLONE(a), last); |
7ae62a67 WT |
6497 | break; |
6498 | ||
f839892a JS |
6499 | case OFPACT_ENCAP: |
6500 | xlate_generic_encap_action(ctx, ofpact_get_ENCAP(a)); | |
6501 | break; | |
6502 | ||
6503 | case OFPACT_DECAP: { | |
6504 | bool recirc_needed = | |
6505 | xlate_generic_decap_action(ctx, ofpact_get_DECAP(a)); | |
6506 | if (!ctx->error && recirc_needed) { | |
6507 | /* Recirculate for parsing of inner packet. */ | |
6508 | ctx_trigger_freeze(ctx); | |
6509 | /* Then continue with next action. */ | |
6510 | a = ofpact_next(a); | |
6511 | } | |
6512 | break; | |
6513 | } | |
6514 | ||
07659514 | 6515 | case OFPACT_CT: |
feee58b9 | 6516 | compose_conntrack_action(ctx, ofpact_get_CT(a), last); |
07659514 JS |
6517 | break; |
6518 | ||
72fe7578 | 6519 | case OFPACT_CT_CLEAR: |
88a20f8c | 6520 | compose_ct_clear_action(ctx); |
72fe7578 BP |
6521 | break; |
6522 | ||
9ac0aada JR |
6523 | case OFPACT_NAT: |
6524 | /* This will be processed by compose_conntrack_action(). */ | |
6525 | ctx->ct_nat_action = ofpact_get_NAT(a); | |
6526 | break; | |
6527 | ||
d4abaff5 | 6528 | case OFPACT_DEBUG_RECIRC: |
1d361a81 | 6529 | ctx_trigger_freeze(ctx); |
d4abaff5 BP |
6530 | a = ofpact_next(a); |
6531 | break; | |
a934a3dd JP |
6532 | |
6533 | case OFPACT_DEBUG_SLOW: | |
6534 | ctx->xout->slow |= SLOW_ACTION; | |
6535 | break; | |
9583bc14 | 6536 | } |
1d741d6d JR |
6537 | |
6538 | /* Check if need to store this and the remaining actions for later | |
6539 | * execution. */ | |
1d361a81 BP |
6540 | if (!ctx->error && ctx->exit && ctx_first_frozen_action(ctx)) { |
6541 | freeze_unroll_actions(a, ofpact_end(ofpacts, ofpacts_len), ctx); | |
1d741d6d JR |
6542 | break; |
6543 | } | |
9583bc14 | 6544 | } |
9583bc14 EJ |
6545 | } |
6546 | ||
6547 | void | |
6548 | xlate_in_init(struct xlate_in *xin, struct ofproto_dpif *ofproto, | |
1f4a8933 JR |
6549 | ovs_version_t version, const struct flow *flow, |
6550 | ofp_port_t in_port, struct rule_dpif *rule, uint16_t tcp_flags, | |
1520ef4f BP |
6551 | const struct dp_packet *packet, struct flow_wildcards *wc, |
6552 | struct ofpbuf *odp_actions) | |
9583bc14 EJ |
6553 | { |
6554 | xin->ofproto = ofproto; | |
1f4a8933 | 6555 | xin->tables_version = version; |
9583bc14 | 6556 | xin->flow = *flow; |
8d8ab6c2 | 6557 | xin->upcall_flow = flow; |
cc377352 | 6558 | xin->flow.in_port.ofp_port = in_port; |
c61f3870 | 6559 | xin->flow.actset_output = OFPP_UNSET; |
9583bc14 | 6560 | xin->packet = packet; |
df70a773 | 6561 | xin->allow_side_effects = packet != NULL; |
9583bc14 | 6562 | xin->rule = rule; |
b256dc52 | 6563 | xin->xcache = NULL; |
9583bc14 EJ |
6564 | xin->ofpacts = NULL; |
6565 | xin->ofpacts_len = 0; | |
6566 | xin->tcp_flags = tcp_flags; | |
2d9b49dd | 6567 | xin->trace = NULL; |
9583bc14 | 6568 | xin->resubmit_stats = NULL; |
790c5d26 | 6569 | xin->depth = 0; |
cdd42eda | 6570 | xin->resubmits = 0; |
49a73e0c | 6571 | xin->wc = wc; |
1520ef4f | 6572 | xin->odp_actions = odp_actions; |
331c07ac | 6573 | xin->in_packet_out = false; |
e6bc8e74 | 6574 | xin->recirc_queue = NULL; |
43e73536 | 6575 | xin->xport_uuid = UUID_ZERO; |
e672ff9b JR |
6576 | |
6577 | /* Do recirc lookup. */ | |
1d361a81 | 6578 | xin->frozen_state = NULL; |
29b1ea3f BP |
6579 | if (flow->recirc_id) { |
6580 | const struct recirc_id_node *node | |
6581 | = recirc_id_node_find(flow->recirc_id); | |
6582 | if (node) { | |
1d361a81 | 6583 | xin->frozen_state = &node->state; |
29b1ea3f BP |
6584 | } |
6585 | } | |
9583bc14 EJ |
6586 | } |
6587 | ||
6588 | void | |
6589 | xlate_out_uninit(struct xlate_out *xout) | |
6590 | { | |
e672ff9b | 6591 | if (xout) { |
fbf5d6ec | 6592 | recirc_refs_unref(&xout->recircs); |
9583bc14 EJ |
6593 | } |
6594 | } | |
9583bc14 | 6595 | \f |
55954f6e EJ |
6596 | static struct skb_priority_to_dscp * |
6597 | get_skb_priority(const struct xport *xport, uint32_t skb_priority) | |
6598 | { | |
6599 | struct skb_priority_to_dscp *pdscp; | |
6600 | uint32_t hash; | |
6601 | ||
6602 | hash = hash_int(skb_priority, 0); | |
6603 | HMAP_FOR_EACH_IN_BUCKET (pdscp, hmap_node, hash, &xport->skb_priorities) { | |
6604 | if (pdscp->skb_priority == skb_priority) { | |
6605 | return pdscp; | |
6606 | } | |
6607 | } | |
6608 | return NULL; | |
6609 | } | |
6610 | ||
6611 | static bool | |
6612 | dscp_from_skb_priority(const struct xport *xport, uint32_t skb_priority, | |
6613 | uint8_t *dscp) | |
6614 | { | |
6615 | struct skb_priority_to_dscp *pdscp = get_skb_priority(xport, skb_priority); | |
6616 | *dscp = pdscp ? pdscp->dscp : 0; | |
6617 | return pdscp != NULL; | |
6618 | } | |
6619 | ||
16194afd DDP |
6620 | static size_t |
6621 | count_skb_priorities(const struct xport *xport) | |
6622 | { | |
6623 | return hmap_count(&xport->skb_priorities); | |
6624 | } | |
6625 | ||
55954f6e EJ |
6626 | static void |
6627 | clear_skb_priorities(struct xport *xport) | |
6628 | { | |
4ec3d7c7 | 6629 | struct skb_priority_to_dscp *pdscp; |
55954f6e | 6630 | |
4ec3d7c7 | 6631 | HMAP_FOR_EACH_POP (pdscp, hmap_node, &xport->skb_priorities) { |
55954f6e EJ |
6632 | free(pdscp); |
6633 | } | |
6634 | } | |
6635 | ||
ce4a6b76 BP |
6636 | static bool |
6637 | actions_output_to_local_port(const struct xlate_ctx *ctx) | |
6638 | { | |
46c88433 | 6639 | odp_port_t local_odp_port = ofp_port_to_odp_port(ctx->xbridge, OFPP_LOCAL); |
ce4a6b76 BP |
6640 | const struct nlattr *a; |
6641 | unsigned int left; | |
6642 | ||
1520ef4f BP |
6643 | NL_ATTR_FOR_EACH_UNSAFE (a, left, ctx->odp_actions->data, |
6644 | ctx->odp_actions->size) { | |
ce4a6b76 BP |
6645 | if (nl_attr_type(a) == OVS_ACTION_ATTR_OUTPUT |
6646 | && nl_attr_get_odp_port(a) == local_odp_port) { | |
6647 | return true; | |
6648 | } | |
6649 | } | |
6650 | return false; | |
6651 | } | |
9583bc14 | 6652 | |
5e2a6702 | 6653 | #if defined(__linux__) |
7d031d7e BP |
6654 | /* Returns the maximum number of packets that the Linux kernel is willing to |
6655 | * queue up internally to certain kinds of software-implemented ports, or the | |
6656 | * default (and rarely modified) value if it cannot be determined. */ | |
6657 | static int | |
6658 | netdev_max_backlog(void) | |
6659 | { | |
6660 | static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER; | |
6661 | static int max_backlog = 1000; /* The normal default value. */ | |
6662 | ||
6663 | if (ovsthread_once_start(&once)) { | |
6664 | static const char filename[] = "/proc/sys/net/core/netdev_max_backlog"; | |
6665 | FILE *stream; | |
6666 | int n; | |
6667 | ||
6668 | stream = fopen(filename, "r"); | |
6669 | if (!stream) { | |
120c348f | 6670 | VLOG_INFO("%s: open failed (%s)", filename, ovs_strerror(errno)); |
7d031d7e BP |
6671 | } else { |
6672 | if (fscanf(stream, "%d", &n) != 1) { | |
6673 | VLOG_WARN("%s: read error", filename); | |
6674 | } else if (n <= 100) { | |
6675 | VLOG_WARN("%s: unexpectedly small value %d", filename, n); | |
6676 | } else { | |
6677 | max_backlog = n; | |
6678 | } | |
6679 | fclose(stream); | |
6680 | } | |
6681 | ovsthread_once_done(&once); | |
6682 | ||
6683 | VLOG_DBG("%s: using %d max_backlog", filename, max_backlog); | |
6684 | } | |
6685 | ||
6686 | return max_backlog; | |
6687 | } | |
6688 | ||
6689 | /* Counts and returns the number of OVS_ACTION_ATTR_OUTPUT actions in | |
6690 | * 'odp_actions'. */ | |
6691 | static int | |
6692 | count_output_actions(const struct ofpbuf *odp_actions) | |
6693 | { | |
6694 | const struct nlattr *a; | |
6695 | size_t left; | |
6696 | int n = 0; | |
6697 | ||
6fd6ed71 | 6698 | NL_ATTR_FOR_EACH_UNSAFE (a, left, odp_actions->data, odp_actions->size) { |
7d031d7e BP |
6699 | if (a->nla_type == OVS_ACTION_ATTR_OUTPUT) { |
6700 | n++; | |
6701 | } | |
6702 | } | |
6703 | return n; | |
6704 | } | |
5e2a6702 | 6705 | #endif /* defined(__linux__) */ |
7d031d7e BP |
6706 | |
6707 | /* Returns true if 'odp_actions' contains more output actions than the datapath | |
6708 | * can reliably handle in one go. On Linux, this is the value of the | |
6709 | * net.core.netdev_max_backlog sysctl, which limits the maximum number of | |
6710 | * packets that the kernel is willing to queue up for processing while the | |
6711 | * datapath is processing a set of actions. */ | |
6712 | static bool | |
5e2a6702 | 6713 | too_many_output_actions(const struct ofpbuf *odp_actions OVS_UNUSED) |
7d031d7e BP |
6714 | { |
6715 | #ifdef __linux__ | |
6fd6ed71 | 6716 | return (odp_actions->size / NL_A_U32_SIZE > netdev_max_backlog() |
7d031d7e BP |
6717 | && count_output_actions(odp_actions) > netdev_max_backlog()); |
6718 | #else | |
6719 | /* OSes other than Linux might have similar limits, but we don't know how | |
6720 | * to determine them.*/ | |
6721 | return false; | |
6722 | #endif | |
6723 | } | |
6724 | ||
234c3da9 BP |
6725 | static void |
6726 | xlate_wc_init(struct xlate_ctx *ctx) | |
6727 | { | |
6728 | flow_wildcards_init_catchall(ctx->wc); | |
6729 | ||
6730 | /* Some fields we consider to always be examined. */ | |
3d4b2e6e | 6731 | WC_MASK_FIELD(ctx->wc, packet_type); |
5e2e998a | 6732 | WC_MASK_FIELD(ctx->wc, in_port); |
3d4b2e6e JS |
6733 | if (is_ethernet(&ctx->xin->flow, NULL)) { |
6734 | WC_MASK_FIELD(ctx->wc, dl_type); | |
6735 | } | |
234c3da9 | 6736 | if (is_ip_any(&ctx->xin->flow)) { |
5e2e998a | 6737 | WC_MASK_FIELD_MASK(ctx->wc, nw_frag, FLOW_NW_FRAG_MASK); |
234c3da9 BP |
6738 | } |
6739 | ||
6740 | if (ctx->xbridge->support.odp.recirc) { | |
6741 | /* Always exactly match recirc_id when datapath supports | |
6742 | * recirculation. */ | |
5e2e998a | 6743 | WC_MASK_FIELD(ctx->wc, recirc_id); |
234c3da9 BP |
6744 | } |
6745 | ||
6746 | if (ctx->xbridge->netflow) { | |
6747 | netflow_mask_wc(&ctx->xin->flow, ctx->wc); | |
6748 | } | |
6749 | ||
6750 | tnl_wc_init(&ctx->xin->flow, ctx->wc); | |
6751 | } | |
6752 | ||
6753 | static void | |
6754 | xlate_wc_finish(struct xlate_ctx *ctx) | |
6755 | { | |
f0fb825a EG |
6756 | int i; |
6757 | ||
234c3da9 BP |
6758 | /* Clear the metadata and register wildcard masks, because we won't |
6759 | * use non-header fields as part of the cache. */ | |
6760 | flow_wildcards_clear_non_packet_fields(ctx->wc); | |
6761 | ||
f839892a | 6762 | /* Wildcard ethernet fields if the original packet type was not |
beb75a40 JS |
6763 | * Ethernet. */ |
6764 | if (ctx->xin->upcall_flow->packet_type != htonl(PT_ETH)) { | |
6765 | ctx->wc->masks.dl_dst = eth_addr_zero; | |
6766 | ctx->wc->masks.dl_src = eth_addr_zero; | |
3d4b2e6e | 6767 | ctx->wc->masks.dl_type = 0; |
beb75a40 JS |
6768 | } |
6769 | ||
234c3da9 BP |
6770 | /* ICMPv4 and ICMPv6 have 8-bit "type" and "code" fields. struct flow |
6771 | * uses the low 8 bits of the 16-bit tp_src and tp_dst members to | |
6772 | * represent these fields. The datapath interface, on the other hand, | |
6773 | * represents them with just 8 bits each. This means that if the high | |
6774 | * 8 bits of the masks for these fields somehow become set, then they | |
6775 | * will get chopped off by a round trip through the datapath, and | |
6776 | * revalidation will spot that as an inconsistency and delete the flow. | |
6777 | * Avoid the problem here by making sure that only the low 8 bits of | |
6778 | * either field can be unwildcarded for ICMP. | |
6779 | */ | |
a75636c8 | 6780 | if (is_icmpv4(&ctx->xin->flow, NULL) || is_icmpv6(&ctx->xin->flow, NULL)) { |
234c3da9 BP |
6781 | ctx->wc->masks.tp_src &= htons(UINT8_MAX); |
6782 | ctx->wc->masks.tp_dst &= htons(UINT8_MAX); | |
6783 | } | |
6784 | /* VLAN_TCI CFI bit must be matched if any of the TCI is matched. */ | |
f0fb825a EG |
6785 | for (i = 0; i < FLOW_MAX_VLAN_HEADERS; i++) { |
6786 | if (ctx->wc->masks.vlans[i].tci) { | |
6787 | ctx->wc->masks.vlans[i].tci |= htons(VLAN_CFI); | |
6788 | } | |
234c3da9 | 6789 | } |
4a7ab326 DDP |
6790 | |
6791 | /* The classifier might return masks that match on tp_src and tp_dst even | |
6792 | * for later fragments. This happens because there might be flows that | |
6793 | * match on tp_src or tp_dst without matching on the frag bits, because | |
6794 | * it is not a prerequisite for OpenFlow. Since it is a prerequisite for | |
6795 | * datapath flows and since tp_src and tp_dst are always going to be 0, | |
6796 | * wildcard the fields here. */ | |
6797 | if (ctx->xin->flow.nw_frag & FLOW_NW_FRAG_LATER) { | |
6798 | ctx->wc->masks.tp_src = 0; | |
6799 | ctx->wc->masks.tp_dst = 0; | |
6800 | } | |
234c3da9 BP |
6801 | } |
6802 | ||
e672ff9b JR |
6803 | /* Translates the flow, actions, or rule in 'xin' into datapath actions in |
6804 | * 'xout'. | |
56450a41 | 6805 | * The caller must take responsibility for eventually freeing 'xout', with |
fff1b9c0 JR |
6806 | * xlate_out_uninit(). |
6807 | * Returns 'XLATE_OK' if translation was successful. In case of an error an | |
6808 | * empty set of actions will be returned in 'xin->odp_actions' (if non-NULL), | |
6809 | * so that most callers may ignore the return value and transparently install a | |
6810 | * drop flow when the translation fails. */ | |
6811 | enum xlate_error | |
84f0f298 | 6812 | xlate_actions(struct xlate_in *xin, struct xlate_out *xout) |
9583bc14 | 6813 | { |
e467ea42 BP |
6814 | *xout = (struct xlate_out) { |
6815 | .slow = 0, | |
fbf5d6ec | 6816 | .recircs = RECIRC_REFS_EMPTY_INITIALIZER, |
e467ea42 BP |
6817 | }; |
6818 | ||
84f0f298 | 6819 | struct xlate_cfg *xcfg = ovsrcu_get(struct xlate_cfg *, &xcfgp); |
bb00fdef BP |
6820 | struct xbridge *xbridge = xbridge_lookup(xcfg, xin->ofproto); |
6821 | if (!xbridge) { | |
fff1b9c0 | 6822 | return XLATE_BRIDGE_NOT_FOUND; |
bb00fdef BP |
6823 | } |
6824 | ||
33bf9176 BP |
6825 | struct flow *flow = &xin->flow; |
6826 | ||
84cf3c1f | 6827 | uint8_t stack_stub[1024]; |
bb00fdef | 6828 | uint64_t action_set_stub[1024 / 8]; |
1d361a81 | 6829 | uint64_t frozen_actions_stub[1024 / 8]; |
1520ef4f BP |
6830 | uint64_t actions_stub[256 / 8]; |
6831 | struct ofpbuf scratch_actions = OFPBUF_STUB_INITIALIZER(actions_stub); | |
bb00fdef BP |
6832 | struct xlate_ctx ctx = { |
6833 | .xin = xin, | |
6834 | .xout = xout, | |
6835 | .base_flow = *flow, | |
c2b878e0 | 6836 | .orig_tunnel_ipv6_dst = flow_tnl_dst(&flow->tunnel), |
68f515ca | 6837 | .xcfg = xcfg, |
bb00fdef BP |
6838 | .xbridge = xbridge, |
6839 | .stack = OFPBUF_STUB_INITIALIZER(stack_stub), | |
6840 | .rule = xin->rule, | |
c0e638aa BP |
6841 | .wc = (xin->wc |
6842 | ? xin->wc | |
f36efd90 | 6843 | : &(struct flow_wildcards) { .masks = { .dl_type = 0 } }), |
1520ef4f | 6844 | .odp_actions = xin->odp_actions ? xin->odp_actions : &scratch_actions, |
bb00fdef | 6845 | |
790c5d26 | 6846 | .depth = xin->depth, |
cdd42eda | 6847 | .resubmits = xin->resubmits, |
bb00fdef BP |
6848 | .in_group = false, |
6849 | .in_action_set = false, | |
331c07ac | 6850 | .in_packet_out = xin->in_packet_out, |
f839892a | 6851 | .pending_encap = false, |
1fc11c59 | 6852 | .encap_data = NULL, |
bb00fdef BP |
6853 | |
6854 | .table_id = 0, | |
6855 | .rule_cookie = OVS_BE64_MAX, | |
6856 | .orig_skb_priority = flow->skb_priority, | |
6857 | .sflow_n_outputs = 0, | |
6858 | .sflow_odp_port = 0, | |
2031ef97 | 6859 | .nf_output_iface = NF_OUT_DROP, |
bb00fdef | 6860 | .exit = false, |
fff1b9c0 | 6861 | .error = XLATE_OK, |
3d6151f3 | 6862 | .mirrors = 0, |
bb00fdef | 6863 | |
1d361a81 | 6864 | .freezing = false, |
53cc166a | 6865 | .recirc_update_dp_hash = false, |
1d361a81 | 6866 | .frozen_actions = OFPBUF_STUB_INITIALIZER(frozen_actions_stub), |
77ab5fd2 | 6867 | .pause = NULL, |
bb00fdef | 6868 | |
e12ec36b | 6869 | .was_mpls = false, |
07659514 | 6870 | .conntracked = false, |
bb00fdef | 6871 | |
9ac0aada JR |
6872 | .ct_nat_action = NULL, |
6873 | ||
bb00fdef BP |
6874 | .action_set_has_group = false, |
6875 | .action_set = OFPBUF_STUB_INITIALIZER(action_set_stub), | |
6876 | }; | |
865ca6cf BP |
6877 | |
6878 | /* 'base_flow' reflects the packet as it came in, but we need it to reflect | |
42deb67d PS |
6879 | * the packet as the datapath will treat it for output actions. Our |
6880 | * datapath doesn't retain tunneling information without us re-setting | |
6881 | * it, so clear the tunnel data. | |
865ca6cf | 6882 | */ |
42deb67d | 6883 | |
bb00fdef | 6884 | memset(&ctx.base_flow.tunnel, 0, sizeof ctx.base_flow.tunnel); |
865ca6cf | 6885 | |
1520ef4f | 6886 | ofpbuf_reserve(ctx.odp_actions, NL_A_U32_SIZE); |
c0e638aa | 6887 | xlate_wc_init(&ctx); |
bb00fdef | 6888 | |
46c88433 | 6889 | COVERAGE_INC(xlate_actions); |
9583bc14 | 6890 | |
2d9b49dd BP |
6891 | xin->trace = xlate_report(&ctx, OFT_BRIDGE, "bridge(\"%s\")", |
6892 | xbridge->name); | |
1d361a81 BP |
6893 | if (xin->frozen_state) { |
6894 | const struct frozen_state *state = xin->frozen_state; | |
e672ff9b | 6895 | |
2d9b49dd BP |
6896 | struct ovs_list *old_trace = xin->trace; |
6897 | xin->trace = xlate_report(&ctx, OFT_THAW, "thaw"); | |
d6bef3cc | 6898 | |
e672ff9b | 6899 | if (xin->ofpacts_len > 0 || ctx.rule) { |
2d9b49dd BP |
6900 | xlate_report_error(&ctx, "Recirculation conflict (%s)!", |
6901 | xin->ofpacts_len ? "actions" : "rule"); | |
fff1b9c0 | 6902 | ctx.error = XLATE_RECIRCULATION_CONFLICT; |
1520ef4f | 6903 | goto exit; |
e672ff9b JR |
6904 | } |
6905 | ||
6906 | /* Set the bridge for post-recirculation processing if needed. */ | |
07a3cd5c | 6907 | if (!uuid_equals(&ctx.xbridge->ofproto->uuid, &state->ofproto_uuid)) { |
2082425c | 6908 | const struct xbridge *new_bridge |
290835f9 | 6909 | = xbridge_lookup_by_uuid(xcfg, &state->ofproto_uuid); |
e672ff9b JR |
6910 | |
6911 | if (OVS_UNLIKELY(!new_bridge)) { | |
6912 | /* Drop the packet if the bridge cannot be found. */ | |
2d9b49dd | 6913 | xlate_report_error(&ctx, "Frozen bridge no longer exists."); |
fff1b9c0 | 6914 | ctx.error = XLATE_BRIDGE_NOT_FOUND; |
2d9b49dd | 6915 | xin->trace = old_trace; |
1520ef4f | 6916 | goto exit; |
e672ff9b JR |
6917 | } |
6918 | ctx.xbridge = new_bridge; | |
1f4a8933 JR |
6919 | /* The bridge is now known so obtain its table version. */ |
6920 | ctx.xin->tables_version | |
6921 | = ofproto_dpif_get_tables_version(ctx.xbridge->ofproto); | |
e672ff9b JR |
6922 | } |
6923 | ||
1d361a81 BP |
6924 | /* Set the thawed table id. Note: A table lookup is done only if there |
6925 | * are no frozen actions. */ | |
2082425c | 6926 | ctx.table_id = state->table_id; |
2d9b49dd BP |
6927 | xlate_report(&ctx, OFT_THAW, |
6928 | "Resuming from table %"PRIu8, ctx.table_id); | |
e672ff9b | 6929 | |
40b0fbd3 | 6930 | ctx.conntracked = state->conntracked; |
07659514 | 6931 | if (!state->conntracked) { |
72fe7578 | 6932 | clear_conntrack(&ctx); |
07659514 JS |
6933 | } |
6934 | ||
e672ff9b | 6935 | /* Restore pipeline metadata. May change flow's in_port and other |
1d361a81 BP |
6936 | * metadata to the values that existed when freezing was triggered. */ |
6937 | frozen_metadata_to_flow(&state->metadata, flow); | |
e672ff9b JR |
6938 | |
6939 | /* Restore stack, if any. */ | |
2082425c | 6940 | if (state->stack) { |
84cf3c1f | 6941 | ofpbuf_put(&ctx.stack, state->stack, state->stack_size); |
e672ff9b JR |
6942 | } |
6943 | ||
29bae541 BP |
6944 | /* Restore mirror state. */ |
6945 | ctx.mirrors = state->mirrors; | |
6946 | ||
e672ff9b | 6947 | /* Restore action set, if any. */ |
2082425c | 6948 | if (state->action_set_len) { |
2d9b49dd | 6949 | xlate_report_actions(&ctx, OFT_THAW, "Restoring action set", |
417509fa | 6950 | state->action_set, state->action_set_len); |
d6bef3cc | 6951 | |
7e7e8dbb BP |
6952 | flow->actset_output = OFPP_UNSET; |
6953 | xlate_write_actions__(&ctx, state->action_set, | |
6954 | state->action_set_len); | |
e672ff9b JR |
6955 | } |
6956 | ||
1d361a81 BP |
6957 | /* Restore frozen actions. If there are no actions, processing will |
6958 | * start with a lookup in the table set above. */ | |
417509fa BP |
6959 | xin->ofpacts = state->ofpacts; |
6960 | xin->ofpacts_len = state->ofpacts_len; | |
6961 | if (state->ofpacts_len) { | |
2d9b49dd | 6962 | xlate_report_actions(&ctx, OFT_THAW, "Restoring actions", |
d6bef3cc | 6963 | xin->ofpacts, xin->ofpacts_len); |
e672ff9b | 6964 | } |
e672ff9b | 6965 | |
2d9b49dd BP |
6966 | xin->trace = old_trace; |
6967 | } else if (OVS_UNLIKELY(flow->recirc_id)) { | |
6968 | xlate_report_error(&ctx, | |
6969 | "Recirculation context not found for ID %"PRIx32, | |
6970 | flow->recirc_id); | |
fff1b9c0 | 6971 | ctx.error = XLATE_NO_RECIRCULATION_CONTEXT; |
1520ef4f | 6972 | goto exit; |
e672ff9b | 6973 | } |
9583bc14 | 6974 | |
8d8ab6c2 JG |
6975 | /* Tunnel metadata in udpif format must be normalized before translation. */ |
6976 | if (flow->tunnel.flags & FLOW_TNL_F_UDPIF) { | |
5b09d9f7 MS |
6977 | const struct tun_table *tun_tab = ofproto_get_tun_tab( |
6978 | &ctx.xbridge->ofproto->up); | |
8d8ab6c2 JG |
6979 | int err; |
6980 | ||
6981 | err = tun_metadata_from_geneve_udpif(tun_tab, &xin->upcall_flow->tunnel, | |
6982 | &xin->upcall_flow->tunnel, | |
6983 | &flow->tunnel); | |
6984 | if (err) { | |
2d9b49dd | 6985 | xlate_report_error(&ctx, "Invalid Geneve tunnel metadata"); |
8d8ab6c2 JG |
6986 | ctx.error = XLATE_INVALID_TUNNEL_METADATA; |
6987 | goto exit; | |
6988 | } | |
6989 | } else if (!flow->tunnel.metadata.tab) { | |
6990 | /* If the original flow did not come in on a tunnel, then it won't have | |
6991 | * FLOW_TNL_F_UDPIF set. However, we still need to have a metadata | |
6992 | * table in case we generate tunnel actions. */ | |
5b09d9f7 MS |
6993 | flow->tunnel.metadata.tab = ofproto_get_tun_tab( |
6994 | &ctx.xbridge->ofproto->up); | |
8d8ab6c2 JG |
6995 | } |
6996 | ctx.wc->masks.tunnel.metadata.tab = flow->tunnel.metadata.tab; | |
6997 | ||
beb75a40 JS |
6998 | /* Get the proximate input port of the packet. (If xin->frozen_state, |
6999 | * flow->in_port is the ultimate input port of the packet.) */ | |
7000 | struct xport *in_port = get_ofp_port(xbridge, | |
7001 | ctx.base_flow.in_port.ofp_port); | |
43e73536 ZB |
7002 | if (in_port && !in_port->peer) { |
7003 | ctx.xin->xport_uuid = in_port->uuid; | |
7004 | } | |
beb75a40 | 7005 | |
875ab130 BP |
7006 | if (flow->packet_type != htonl(PT_ETH) && in_port && |
7007 | in_port->pt_mode == NETDEV_PT_LEGACY_L3 && ctx.table_id == 0) { | |
beb75a40 JS |
7008 | /* Add dummy Ethernet header to non-L2 packet if it's coming from a |
7009 | * L3 port. So all packets will be L2 packets for lookup. | |
7010 | * The dl_type has already been set from the packet_type. */ | |
7011 | flow->packet_type = htonl(PT_ETH); | |
7012 | flow->dl_src = eth_addr_zero; | |
7013 | flow->dl_dst = eth_addr_zero; | |
f839892a | 7014 | ctx.pending_encap = true; |
beb75a40 JS |
7015 | } |
7016 | ||
10c44245 | 7017 | if (!xin->ofpacts && !ctx.rule) { |
b2e89cc9 | 7018 | ctx.rule = rule_dpif_lookup_from_table( |
1f4a8933 | 7019 | ctx.xbridge->ofproto, ctx.xin->tables_version, flow, ctx.wc, |
1e1e1d19 | 7020 | ctx.xin->resubmit_stats, &ctx.table_id, |
a027899e | 7021 | flow->in_port.ofp_port, true, true, ctx.xin->xcache); |
10c44245 | 7022 | if (ctx.xin->resubmit_stats) { |
b2e89cc9 | 7023 | rule_dpif_credit_stats(ctx.rule, ctx.xin->resubmit_stats); |
10c44245 | 7024 | } |
b256dc52 JS |
7025 | if (ctx.xin->xcache) { |
7026 | struct xc_entry *entry; | |
7027 | ||
7028 | entry = xlate_cache_add_entry(ctx.xin->xcache, XC_RULE); | |
901a517e | 7029 | entry->rule = ctx.rule; |
07a3cd5c | 7030 | ofproto_rule_ref(&ctx.rule->up); |
b256dc52 | 7031 | } |
a8c31348 | 7032 | |
2d9b49dd | 7033 | xlate_report_table(&ctx, ctx.rule, ctx.table_id); |
10c44245 | 7034 | } |
10c44245 | 7035 | |
1d361a81 BP |
7036 | /* Tunnel stats only for not-thawed packets. */ |
7037 | if (!xin->frozen_state && in_port && in_port->is_tunnel) { | |
b256dc52 JS |
7038 | if (ctx.xin->resubmit_stats) { |
7039 | netdev_vport_inc_rx(in_port->netdev, ctx.xin->resubmit_stats); | |
7040 | if (in_port->bfd) { | |
7041 | bfd_account_rx(in_port->bfd, ctx.xin->resubmit_stats); | |
7042 | } | |
7043 | } | |
7044 | if (ctx.xin->xcache) { | |
7045 | struct xc_entry *entry; | |
7046 | ||
7047 | entry = xlate_cache_add_entry(ctx.xin->xcache, XC_NETDEV); | |
901a517e JR |
7048 | entry->dev.rx = netdev_ref(in_port->netdev); |
7049 | entry->dev.bfd = bfd_ref(in_port->bfd); | |
d6fc5f57 EJ |
7050 | } |
7051 | } | |
7052 | ||
1d361a81 | 7053 | if (!xin->frozen_state && process_special(&ctx, in_port)) { |
bef1403e BP |
7054 | /* process_special() did all the processing for this packet. |
7055 | * | |
1d361a81 BP |
7056 | * We do not perform special processing on thawed packets, since that |
7057 | * was done before they were frozen and should not be redone. */ | |
bef1403e BP |
7058 | } else if (in_port && in_port->xbundle |
7059 | && xbundle_mirror_out(xbridge, in_port->xbundle)) { | |
2d9b49dd BP |
7060 | xlate_report_error(&ctx, "dropping packet received on port " |
7061 | "%s, which is reserved exclusively for mirroring", | |
7062 | in_port->xbundle->name); | |
bef1403e | 7063 | } else { |
1d361a81 | 7064 | /* Sampling is done on initial reception; don't redo after thawing. */ |
a6092018 | 7065 | unsigned int user_cookie_offset = 0; |
1d361a81 | 7066 | if (!xin->frozen_state) { |
a6092018 BP |
7067 | user_cookie_offset = compose_sflow_action(&ctx); |
7068 | compose_ipfix_action(&ctx, ODPP_NONE); | |
e672ff9b | 7069 | } |
0731abc5 | 7070 | size_t sample_actions_len = ctx.odp_actions->size; |
9583bc14 | 7071 | |
234c3da9 BP |
7072 | if (tnl_process_ecn(flow) |
7073 | && (!in_port || may_receive(in_port, &ctx))) { | |
1806291d BP |
7074 | const struct ofpact *ofpacts; |
7075 | size_t ofpacts_len; | |
7076 | ||
7077 | if (xin->ofpacts) { | |
7078 | ofpacts = xin->ofpacts; | |
7079 | ofpacts_len = xin->ofpacts_len; | |
7080 | } else if (ctx.rule) { | |
7081 | const struct rule_actions *actions | |
07a3cd5c | 7082 | = rule_get_actions(&ctx.rule->up); |
1806291d BP |
7083 | ofpacts = actions->ofpacts; |
7084 | ofpacts_len = actions->ofpacts_len; | |
07a3cd5c | 7085 | ctx.rule_cookie = ctx.rule->up.flow_cookie; |
1806291d BP |
7086 | } else { |
7087 | OVS_NOT_REACHED(); | |
7088 | } | |
7089 | ||
7efbc3b7 | 7090 | mirror_ingress_packet(&ctx); |
feee58b9 | 7091 | do_xlate_actions(ofpacts, ofpacts_len, &ctx, true); |
fff1b9c0 JR |
7092 | if (ctx.error) { |
7093 | goto exit; | |
7094 | } | |
9583bc14 EJ |
7095 | |
7096 | /* We've let OFPP_NORMAL and the learning action look at the | |
1d361a81 | 7097 | * packet, so cancel all actions and freezing if forwarding is |
8a5fb3b4 | 7098 | * disabled. */ |
9efd308e DV |
7099 | if (in_port && (!xport_stp_forward_state(in_port) || |
7100 | !xport_rstp_forward_state(in_port))) { | |
1520ef4f | 7101 | ctx.odp_actions->size = sample_actions_len; |
1d361a81 | 7102 | ctx_cancel_freeze(&ctx); |
8a5fb3b4 BP |
7103 | ofpbuf_clear(&ctx.action_set); |
7104 | } | |
7105 | ||
1d361a81 | 7106 | if (!ctx.freezing) { |
8a5fb3b4 | 7107 | xlate_action_set(&ctx); |
e672ff9b | 7108 | } |
1d361a81 | 7109 | if (ctx.freezing) { |
77ab5fd2 | 7110 | finish_freezing(&ctx); |
9583bc14 EJ |
7111 | } |
7112 | } | |
7113 | ||
e672ff9b | 7114 | /* Output only fully processed packets. */ |
1d361a81 | 7115 | if (!ctx.freezing |
e672ff9b | 7116 | && xbridge->has_in_band |
ce4a6b76 BP |
7117 | && in_band_must_output_to_local_port(flow) |
7118 | && !actions_output_to_local_port(&ctx)) { | |
11938578 | 7119 | compose_output_action(&ctx, OFPP_LOCAL, NULL, false, false); |
9583bc14 | 7120 | } |
aaa0fbae | 7121 | |
a6092018 BP |
7122 | if (user_cookie_offset) { |
7123 | fix_sflow_action(&ctx, user_cookie_offset); | |
e672ff9b | 7124 | } |
9583bc14 EJ |
7125 | } |
7126 | ||
1520ef4f | 7127 | if (nl_attr_oversized(ctx.odp_actions->size)) { |
542024c4 | 7128 | /* These datapath actions are too big for a Netlink attribute, so we |
0f032e95 BP |
7129 | * can't hand them to the kernel directly. dpif_execute() can execute |
7130 | * them one by one with help, so just mark the result as SLOW_ACTION to | |
7131 | * prevent the flow from being installed. */ | |
7132 | COVERAGE_INC(xlate_actions_oversize); | |
7133 | ctx.xout->slow |= SLOW_ACTION; | |
1520ef4f | 7134 | } else if (too_many_output_actions(ctx.odp_actions)) { |
7d031d7e BP |
7135 | COVERAGE_INC(xlate_actions_too_many_output); |
7136 | ctx.xout->slow |= SLOW_ACTION; | |
542024c4 BP |
7137 | } |
7138 | ||
64fb5f82 JP |
7139 | /* Update NetFlow for non-frozen traffic. */ |
7140 | if (xbridge->netflow && !xin->frozen_state) { | |
1806291d BP |
7141 | if (ctx.xin->resubmit_stats) { |
7142 | netflow_flow_update(xbridge->netflow, flow, | |
2031ef97 | 7143 | ctx.nf_output_iface, |
1806291d BP |
7144 | ctx.xin->resubmit_stats); |
7145 | } | |
7146 | if (ctx.xin->xcache) { | |
7147 | struct xc_entry *entry; | |
b256dc52 | 7148 | |
1806291d | 7149 | entry = xlate_cache_add_entry(ctx.xin->xcache, XC_NETFLOW); |
901a517e JR |
7150 | entry->nf.netflow = netflow_ref(xbridge->netflow); |
7151 | entry->nf.flow = xmemdup(flow, sizeof *flow); | |
7152 | entry->nf.iface = ctx.nf_output_iface; | |
d6fc5f57 EJ |
7153 | } |
7154 | } | |
7155 | ||
8d8ab6c2 JG |
7156 | /* Translate tunnel metadata masks to udpif format if necessary. */ |
7157 | if (xin->upcall_flow->tunnel.flags & FLOW_TNL_F_UDPIF) { | |
7158 | if (ctx.wc->masks.tunnel.metadata.present.map) { | |
7159 | const struct flow_tnl *upcall_tnl = &xin->upcall_flow->tunnel; | |
7160 | struct geneve_opt opts[TLV_TOT_OPT_SIZE / | |
7161 | sizeof(struct geneve_opt)]; | |
7162 | ||
7163 | tun_metadata_to_geneve_udpif_mask(&flow->tunnel, | |
7164 | &ctx.wc->masks.tunnel, | |
7165 | upcall_tnl->metadata.opts.gnv, | |
7166 | upcall_tnl->metadata.present.len, | |
7167 | opts); | |
7168 | memset(&ctx.wc->masks.tunnel.metadata, 0, | |
7169 | sizeof ctx.wc->masks.tunnel.metadata); | |
7170 | memcpy(&ctx.wc->masks.tunnel.metadata.opts.gnv, opts, | |
7171 | upcall_tnl->metadata.present.len); | |
7172 | } | |
7173 | ctx.wc->masks.tunnel.metadata.present.len = 0xff; | |
7174 | ctx.wc->masks.tunnel.metadata.tab = NULL; | |
7175 | ctx.wc->masks.tunnel.flags |= FLOW_TNL_F_UDPIF; | |
7176 | } else if (!xin->upcall_flow->tunnel.metadata.tab) { | |
7177 | /* If we didn't have options in UDPIF format and didn't have an existing | |
7178 | * metadata table, then it means that there were no options at all when | |
7179 | * we started processing and any wildcards we picked up were from | |
7180 | * action generation. Without options on the incoming packet, wildcards | |
7181 | * aren't meaningful. To avoid them possibly getting misinterpreted, | |
7182 | * just clear everything. */ | |
7183 | if (ctx.wc->masks.tunnel.metadata.present.map) { | |
7184 | memset(&ctx.wc->masks.tunnel.metadata, 0, | |
7185 | sizeof ctx.wc->masks.tunnel.metadata); | |
7186 | } else { | |
7187 | ctx.wc->masks.tunnel.metadata.tab = NULL; | |
7188 | } | |
7189 | } | |
7190 | ||
c0e638aa | 7191 | xlate_wc_finish(&ctx); |
1520ef4f BP |
7192 | |
7193 | exit: | |
8d8ab6c2 JG |
7194 | /* Reset the table to what it was when we came in. If we only fetched |
7195 | * it locally, then it has no meaning outside of flow translation. */ | |
7196 | flow->tunnel.metadata.tab = xin->upcall_flow->tunnel.metadata.tab; | |
7197 | ||
1520ef4f BP |
7198 | ofpbuf_uninit(&ctx.stack); |
7199 | ofpbuf_uninit(&ctx.action_set); | |
1d361a81 | 7200 | ofpbuf_uninit(&ctx.frozen_actions); |
1520ef4f | 7201 | ofpbuf_uninit(&scratch_actions); |
1fc11c59 | 7202 | ofpbuf_delete(ctx.encap_data); |
fff1b9c0 JR |
7203 | |
7204 | /* Make sure we return a "drop flow" in case of an error. */ | |
7205 | if (ctx.error) { | |
7206 | xout->slow = 0; | |
7207 | if (xin->odp_actions) { | |
7208 | ofpbuf_clear(xin->odp_actions); | |
7209 | } | |
7210 | } | |
7211 | return ctx.error; | |
91d6cd12 AW |
7212 | } |
7213 | ||
77ab5fd2 BP |
7214 | enum ofperr |
7215 | xlate_resume(struct ofproto_dpif *ofproto, | |
7216 | const struct ofputil_packet_in_private *pin, | |
7217 | struct ofpbuf *odp_actions, | |
7218 | enum slow_path_reason *slow) | |
7219 | { | |
7220 | struct dp_packet packet; | |
4d617a87 BP |
7221 | dp_packet_use_const(&packet, pin->base.packet, |
7222 | pin->base.packet_len); | |
77ab5fd2 BP |
7223 | |
7224 | struct flow flow; | |
7225 | flow_extract(&packet, &flow); | |
7226 | ||
7227 | struct xlate_in xin; | |
1f4a8933 JR |
7228 | xlate_in_init(&xin, ofproto, ofproto_dpif_get_tables_version(ofproto), |
7229 | &flow, 0, NULL, ntohs(flow.tcp_flags), | |
77ab5fd2 BP |
7230 | &packet, NULL, odp_actions); |
7231 | ||
7232 | struct ofpact_note noop; | |
7233 | ofpact_init_NOTE(&noop); | |
7234 | noop.length = 0; | |
7235 | ||
7236 | bool any_actions = pin->actions_len > 0; | |
7237 | struct frozen_state state = { | |
7238 | .table_id = 0, /* Not the table where NXAST_PAUSE was executed. */ | |
7239 | .ofproto_uuid = pin->bridge, | |
7240 | .stack = pin->stack, | |
84cf3c1f | 7241 | .stack_size = pin->stack_size, |
77ab5fd2 BP |
7242 | .mirrors = pin->mirrors, |
7243 | .conntracked = pin->conntracked, | |
43e73536 | 7244 | .xport_uuid = UUID_ZERO, |
77ab5fd2 BP |
7245 | |
7246 | /* When there are no actions, xlate_actions() will search the flow | |
7247 | * table. We don't want it to do that (we want it to resume), so | |
7248 | * supply a no-op action if there aren't any. | |
7249 | * | |
7250 | * (We can't necessarily avoid translating actions entirely if there | |
7251 | * aren't any actions, because there might be some finishing-up to do | |
7252 | * at the end of the pipeline, and we don't check for those | |
7253 | * conditions.) */ | |
7254 | .ofpacts = any_actions ? pin->actions : &noop.ofpact, | |
7255 | .ofpacts_len = any_actions ? pin->actions_len : sizeof noop, | |
7256 | ||
7257 | .action_set = pin->action_set, | |
7258 | .action_set_len = pin->action_set_len, | |
7259 | }; | |
7260 | frozen_metadata_from_flow(&state.metadata, | |
4d617a87 | 7261 | &pin->base.flow_metadata.flow); |
77ab5fd2 BP |
7262 | xin.frozen_state = &state; |
7263 | ||
7264 | struct xlate_out xout; | |
7265 | enum xlate_error error = xlate_actions(&xin, &xout); | |
7266 | *slow = xout.slow; | |
7267 | xlate_out_uninit(&xout); | |
7268 | ||
7269 | /* xlate_actions() can generate a number of errors, but only | |
7270 | * XLATE_BRIDGE_NOT_FOUND really stands out to me as one that we should be | |
7271 | * sure to report over OpenFlow. The others could come up in packet-outs | |
7272 | * or regular flow translation and I don't think that it's going to be too | |
7273 | * useful to report them to the controller. */ | |
7274 | return error == XLATE_BRIDGE_NOT_FOUND ? OFPERR_NXR_STALE : 0; | |
7275 | } | |
7276 | ||
2eb79142 JG |
7277 | /* Sends 'packet' out 'ofport'. If 'port' is a tunnel and that tunnel type |
7278 | * supports a notion of an OAM flag, sets it if 'oam' is true. | |
91d6cd12 AW |
7279 | * May modify 'packet'. |
7280 | * Returns 0 if successful, otherwise a positive errno value. */ | |
7281 | int | |
2eb79142 JG |
7282 | xlate_send_packet(const struct ofport_dpif *ofport, bool oam, |
7283 | struct dp_packet *packet) | |
91d6cd12 | 7284 | { |
84f0f298 | 7285 | struct xlate_cfg *xcfg = ovsrcu_get(struct xlate_cfg *, &xcfgp); |
91d6cd12 | 7286 | struct xport *xport; |
2eb79142 JG |
7287 | uint64_t ofpacts_stub[1024 / 8]; |
7288 | struct ofpbuf ofpacts; | |
91d6cd12 | 7289 | struct flow flow; |
91d6cd12 | 7290 | |
2eb79142 | 7291 | ofpbuf_use_stack(&ofpacts, ofpacts_stub, sizeof ofpacts_stub); |
91d6cd12 | 7292 | /* Use OFPP_NONE as the in_port to avoid special packet processing. */ |
cf62fa4c | 7293 | flow_extract(packet, &flow); |
b5e7e61a | 7294 | flow.in_port.ofp_port = OFPP_NONE; |
91d6cd12 | 7295 | |
84f0f298 | 7296 | xport = xport_lookup(xcfg, ofport); |
91d6cd12 | 7297 | if (!xport) { |
02ea2703 | 7298 | return EINVAL; |
91d6cd12 | 7299 | } |
2eb79142 JG |
7300 | |
7301 | if (oam) { | |
71f21279 BP |
7302 | const ovs_be16 flag = htons(NX_TUN_FLAG_OAM); |
7303 | ofpact_put_set_field(&ofpacts, mf_from_id(MFF_TUN_FLAGS), | |
7304 | &flag, &flag); | |
2eb79142 JG |
7305 | } |
7306 | ||
7307 | ofpact_put_OUTPUT(&ofpacts)->port = xport->ofp_port; | |
e491a67a | 7308 | |
1f4a8933 JR |
7309 | /* Actions here are not referring to anything versionable (flow tables or |
7310 | * groups) so we don't need to worry about the version here. */ | |
7311 | return ofproto_dpif_execute_actions(xport->xbridge->ofproto, | |
7312 | OVS_VERSION_MAX, &flow, NULL, | |
2eb79142 | 7313 | ofpacts.data, ofpacts.size, packet); |
9583bc14 | 7314 | } |
b256dc52 | 7315 | |
901a517e | 7316 | void |
064799a1 JR |
7317 | xlate_mac_learning_update(const struct ofproto_dpif *ofproto, |
7318 | ofp_port_t in_port, struct eth_addr dl_src, | |
7319 | int vlan, bool is_grat_arp) | |
b256dc52 | 7320 | { |
84f0f298 | 7321 | struct xlate_cfg *xcfg = ovsrcu_get(struct xlate_cfg *, &xcfgp); |
b256dc52 JS |
7322 | struct xbridge *xbridge; |
7323 | struct xbundle *xbundle; | |
b256dc52 | 7324 | |
84f0f298 | 7325 | xbridge = xbridge_lookup(xcfg, ofproto); |
b256dc52 JS |
7326 | if (!xbridge) { |
7327 | return; | |
7328 | } | |
7329 | ||
2d9b49dd | 7330 | xbundle = lookup_input_bundle__(xbridge, in_port, NULL); |
b256dc52 JS |
7331 | if (!xbundle) { |
7332 | return; | |
7333 | } | |
7334 | ||
2d9b49dd | 7335 | update_learning_table__(xbridge, xbundle, dl_src, vlan, is_grat_arp); |
b256dc52 | 7336 | } |
bef503e8 | 7337 | |
88186383 AZ |
7338 | void |
7339 | xlate_set_support(const struct ofproto_dpif *ofproto, | |
7340 | const struct dpif_backer_support *support) | |
7341 | { | |
7342 | struct xlate_cfg *xcfg = ovsrcu_get(struct xlate_cfg *, &xcfgp); | |
7343 | struct xbridge *xbridge = xbridge_lookup(xcfg, ofproto); | |
7344 | ||
7345 | if (xbridge) { | |
7346 | xbridge->support = *support; | |
7347 | } | |
7348 | } |