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abe529af | 1 | /* |
4dd1e3ca | 2 | * Copyright (c) 2009, 2010, 2011, 2012 Nicira Networks. |
abe529af BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
18 | ||
5bee6e26 | 19 | #include "ofproto/ofproto-provider.h" |
abe529af BP |
20 | |
21 | #include <errno.h> | |
22 | ||
23 | #include "autopath.h" | |
24 | #include "bond.h" | |
daff3353 | 25 | #include "bundle.h" |
abe529af BP |
26 | #include "byte-order.h" |
27 | #include "connmgr.h" | |
28 | #include "coverage.h" | |
29 | #include "cfm.h" | |
30 | #include "dpif.h" | |
31 | #include "dynamic-string.h" | |
32 | #include "fail-open.h" | |
33 | #include "hmapx.h" | |
34 | #include "lacp.h" | |
75a75043 | 35 | #include "learn.h" |
abe529af | 36 | #include "mac-learning.h" |
816fd533 | 37 | #include "meta-flow.h" |
abe529af BP |
38 | #include "multipath.h" |
39 | #include "netdev.h" | |
40 | #include "netlink.h" | |
41 | #include "nx-match.h" | |
42 | #include "odp-util.h" | |
43 | #include "ofp-util.h" | |
44 | #include "ofpbuf.h" | |
45 | #include "ofp-print.h" | |
bae473fe | 46 | #include "ofproto-dpif-sflow.h" |
abe529af BP |
47 | #include "poll-loop.h" |
48 | #include "timer.h" | |
6c1491fb | 49 | #include "unaligned.h" |
abe529af BP |
50 | #include "unixctl.h" |
51 | #include "vlan-bitmap.h" | |
52 | #include "vlog.h" | |
53 | ||
54 | VLOG_DEFINE_THIS_MODULE(ofproto_dpif); | |
55 | ||
56 | COVERAGE_DEFINE(ofproto_dpif_ctlr_action); | |
57 | COVERAGE_DEFINE(ofproto_dpif_expired); | |
58 | COVERAGE_DEFINE(ofproto_dpif_no_packet_in); | |
59 | COVERAGE_DEFINE(ofproto_dpif_xlate); | |
60 | COVERAGE_DEFINE(facet_changed_rule); | |
61 | COVERAGE_DEFINE(facet_invalidated); | |
62 | COVERAGE_DEFINE(facet_revalidate); | |
63 | COVERAGE_DEFINE(facet_unexpected); | |
64 | ||
29901626 | 65 | /* Maximum depth of flow table recursion (due to resubmit actions) in a |
abe529af | 66 | * flow translation. */ |
642a5c05 | 67 | #define MAX_RESUBMIT_RECURSION 32 |
abe529af | 68 | |
9cdaaebe BP |
69 | /* Number of implemented OpenFlow tables. */ |
70 | enum { N_TABLES = 255 }; | |
71 | BUILD_ASSERT_DECL(N_TABLES >= 1 && N_TABLES <= 255); | |
72 | ||
abe529af BP |
73 | struct ofport_dpif; |
74 | struct ofproto_dpif; | |
75 | ||
76 | struct rule_dpif { | |
77 | struct rule up; | |
78 | ||
abe529af BP |
79 | /* These statistics: |
80 | * | |
81 | * - Do include packets and bytes from facets that have been deleted or | |
82 | * whose own statistics have been folded into the rule. | |
83 | * | |
84 | * - Do include packets and bytes sent "by hand" that were accounted to | |
85 | * the rule without any facet being involved (this is a rare corner | |
86 | * case in rule_execute()). | |
87 | * | |
88 | * - Do not include packet or bytes that can be obtained from any facet's | |
89 | * packet_count or byte_count member or that can be obtained from the | |
b0f7b9b5 | 90 | * datapath by, e.g., dpif_flow_get() for any subfacet. |
abe529af BP |
91 | */ |
92 | uint64_t packet_count; /* Number of packets received. */ | |
93 | uint64_t byte_count; /* Number of bytes received. */ | |
94 | ||
54a9cbc9 BP |
95 | tag_type tag; /* Caches rule_calculate_tag() result. */ |
96 | ||
abe529af BP |
97 | struct list facets; /* List of "struct facet"s. */ |
98 | }; | |
99 | ||
100 | static struct rule_dpif *rule_dpif_cast(const struct rule *rule) | |
101 | { | |
102 | return rule ? CONTAINER_OF(rule, struct rule_dpif, up) : NULL; | |
103 | } | |
104 | ||
29901626 BP |
105 | static struct rule_dpif *rule_dpif_lookup(struct ofproto_dpif *, |
106 | const struct flow *, uint8_t table); | |
abe529af | 107 | |
18b2a258 | 108 | static void flow_push_stats(struct rule_dpif *, const struct flow *, |
b0f7b9b5 BP |
109 | uint64_t packets, uint64_t bytes, |
110 | long long int used); | |
111 | ||
112 | static uint32_t rule_calculate_tag(const struct flow *, | |
113 | const struct flow_wildcards *, | |
114 | uint32_t basis); | |
115 | static void rule_invalidate(const struct rule_dpif *); | |
116 | ||
abe529af BP |
117 | #define MAX_MIRRORS 32 |
118 | typedef uint32_t mirror_mask_t; | |
119 | #define MIRROR_MASK_C(X) UINT32_C(X) | |
120 | BUILD_ASSERT_DECL(sizeof(mirror_mask_t) * CHAR_BIT >= MAX_MIRRORS); | |
121 | struct ofmirror { | |
122 | struct ofproto_dpif *ofproto; /* Owning ofproto. */ | |
123 | size_t idx; /* In ofproto's "mirrors" array. */ | |
124 | void *aux; /* Key supplied by ofproto's client. */ | |
125 | char *name; /* Identifier for log messages. */ | |
126 | ||
127 | /* Selection criteria. */ | |
128 | struct hmapx srcs; /* Contains "struct ofbundle *"s. */ | |
129 | struct hmapx dsts; /* Contains "struct ofbundle *"s. */ | |
130 | unsigned long *vlans; /* Bitmap of chosen VLANs, NULL selects all. */ | |
131 | ||
9ba15e2a | 132 | /* Output (exactly one of out == NULL and out_vlan == -1 is true). */ |
abe529af BP |
133 | struct ofbundle *out; /* Output port or NULL. */ |
134 | int out_vlan; /* Output VLAN or -1. */ | |
9ba15e2a | 135 | mirror_mask_t dup_mirrors; /* Bitmap of mirrors with the same output. */ |
9d24de3b JP |
136 | |
137 | /* Counters. */ | |
138 | int64_t packet_count; /* Number of packets sent. */ | |
139 | int64_t byte_count; /* Number of bytes sent. */ | |
abe529af BP |
140 | }; |
141 | ||
142 | static void mirror_destroy(struct ofmirror *); | |
9d24de3b JP |
143 | static void update_mirror_stats(struct ofproto_dpif *ofproto, |
144 | mirror_mask_t mirrors, | |
145 | uint64_t packets, uint64_t bytes); | |
abe529af | 146 | |
abe529af BP |
147 | struct ofbundle { |
148 | struct ofproto_dpif *ofproto; /* Owning ofproto. */ | |
149 | struct hmap_node hmap_node; /* In struct ofproto's "bundles" hmap. */ | |
150 | void *aux; /* Key supplied by ofproto's client. */ | |
151 | char *name; /* Identifier for log messages. */ | |
152 | ||
153 | /* Configuration. */ | |
154 | struct list ports; /* Contains "struct ofport"s. */ | |
ecac4ebf | 155 | enum port_vlan_mode vlan_mode; /* VLAN mode */ |
abe529af BP |
156 | int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */ |
157 | unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1. | |
158 | * NULL if all VLANs are trunked. */ | |
159 | struct lacp *lacp; /* LACP if LACP is enabled, otherwise NULL. */ | |
160 | struct bond *bond; /* Nonnull iff more than one port. */ | |
5e9ceccd | 161 | bool use_priority_tags; /* Use 802.1p tag for frames in VLAN 0? */ |
abe529af BP |
162 | |
163 | /* Status. */ | |
9e1fd49b | 164 | bool floodable; /* True if no port has OFPUTIL_PC_NO_FLOOD set. */ |
abe529af BP |
165 | |
166 | /* Port mirroring info. */ | |
167 | mirror_mask_t src_mirrors; /* Mirrors triggered when packet received. */ | |
168 | mirror_mask_t dst_mirrors; /* Mirrors triggered when packet sent. */ | |
169 | mirror_mask_t mirror_out; /* Mirrors that output to this bundle. */ | |
170 | }; | |
171 | ||
172 | static void bundle_remove(struct ofport *); | |
7bde8dd8 | 173 | static void bundle_update(struct ofbundle *); |
abe529af BP |
174 | static void bundle_destroy(struct ofbundle *); |
175 | static void bundle_del_port(struct ofport_dpif *); | |
176 | static void bundle_run(struct ofbundle *); | |
177 | static void bundle_wait(struct ofbundle *); | |
3581c12c JP |
178 | static struct ofbundle *lookup_input_bundle(struct ofproto_dpif *, |
179 | uint16_t in_port, bool warn); | |
abe529af | 180 | |
33158a18 JP |
181 | /* A controller may use OFPP_NONE as the ingress port to indicate that |
182 | * it did not arrive on a "real" port. 'ofpp_none_bundle' exists for | |
183 | * when an input bundle is needed for validation (e.g., mirroring or | |
184 | * OFPP_NORMAL processing). It is not connected to an 'ofproto' or have | |
185 | * any 'port' structs, so care must be taken when dealing with it. */ | |
186 | static struct ofbundle ofpp_none_bundle = { | |
187 | .name = "OFPP_NONE", | |
188 | .vlan_mode = PORT_VLAN_TRUNK | |
189 | }; | |
190 | ||
21f7563c JP |
191 | static void stp_run(struct ofproto_dpif *ofproto); |
192 | static void stp_wait(struct ofproto_dpif *ofproto); | |
851bf71d EJ |
193 | static int set_stp_port(struct ofport *, |
194 | const struct ofproto_port_stp_settings *); | |
21f7563c | 195 | |
5da5ec37 BP |
196 | static bool ofbundle_includes_vlan(const struct ofbundle *, uint16_t vlan); |
197 | ||
abe529af BP |
198 | struct action_xlate_ctx { |
199 | /* action_xlate_ctx_init() initializes these members. */ | |
200 | ||
201 | /* The ofproto. */ | |
202 | struct ofproto_dpif *ofproto; | |
203 | ||
204 | /* Flow to which the OpenFlow actions apply. xlate_actions() will modify | |
205 | * this flow when actions change header fields. */ | |
206 | struct flow flow; | |
207 | ||
208 | /* The packet corresponding to 'flow', or a null pointer if we are | |
209 | * revalidating without a packet to refer to. */ | |
210 | const struct ofpbuf *packet; | |
211 | ||
75a75043 BP |
212 | /* Should OFPP_NORMAL MAC learning and NXAST_LEARN actions execute? We |
213 | * want to execute them if we are actually processing a packet, or if we | |
214 | * are accounting for packets that the datapath has processed, but not if | |
215 | * we are just revalidating. */ | |
216 | bool may_learn; | |
217 | ||
18b2a258 BP |
218 | /* The rule that we are currently translating, or NULL. */ |
219 | struct rule_dpif *rule; | |
54834960 | 220 | |
0e553d9c BP |
221 | /* Union of the set of TCP flags seen so far in this flow. (Used only by |
222 | * NXAST_FIN_TIMEOUT. Set to zero to avoid updating updating rules' | |
223 | * timeouts.) */ | |
224 | uint8_t tcp_flags; | |
225 | ||
6a6455e5 EJ |
226 | /* If nonnull, called just before executing a resubmit action. In |
227 | * addition, disables logging of traces when the recursion depth is | |
228 | * exceeded. | |
abe529af BP |
229 | * |
230 | * This is normally null so the client has to set it manually after | |
231 | * calling action_xlate_ctx_init(). */ | |
232 | void (*resubmit_hook)(struct action_xlate_ctx *, struct rule_dpif *); | |
233 | ||
abe529af BP |
234 | /* xlate_actions() initializes and uses these members. The client might want |
235 | * to look at them after it returns. */ | |
236 | ||
237 | struct ofpbuf *odp_actions; /* Datapath actions. */ | |
75a75043 | 238 | tag_type tags; /* Tags associated with actions. */ |
abe529af BP |
239 | bool may_set_up_flow; /* True ordinarily; false if the actions must |
240 | * be reassessed for every packet. */ | |
75a75043 BP |
241 | bool has_learn; /* Actions include NXAST_LEARN? */ |
242 | bool has_normal; /* Actions output to OFPP_NORMAL? */ | |
0e553d9c | 243 | bool has_fin_timeout; /* Actions include NXAST_FIN_TIMEOUT? */ |
abe529af | 244 | uint16_t nf_output_iface; /* Output interface index for NetFlow. */ |
9d24de3b | 245 | mirror_mask_t mirrors; /* Bitmap of associated mirrors. */ |
abe529af BP |
246 | |
247 | /* xlate_actions() initializes and uses these members, but the client has no | |
248 | * reason to look at them. */ | |
249 | ||
250 | int recurse; /* Recursion level, via xlate_table_action. */ | |
6a6455e5 | 251 | bool max_resubmit_trigger; /* Recursed too deeply during translation. */ |
b3e9b2ed | 252 | struct flow base_flow; /* Flow at the last commit. */ |
deedf7e7 | 253 | uint32_t orig_skb_priority; /* Priority when packet arrived. */ |
29901626 | 254 | uint8_t table_id; /* OpenFlow table ID where flow was found. */ |
6ff686f2 PS |
255 | uint32_t sflow_n_outputs; /* Number of output ports. */ |
256 | uint16_t sflow_odp_port; /* Output port for composing sFlow action. */ | |
257 | uint16_t user_cookie_offset;/* Used for user_action_cookie fixup. */ | |
848e8809 | 258 | bool exit; /* No further actions should be processed. */ |
abe529af BP |
259 | }; |
260 | ||
261 | static void action_xlate_ctx_init(struct action_xlate_ctx *, | |
262 | struct ofproto_dpif *, const struct flow *, | |
18b2a258 | 263 | ovs_be16 initial_tci, struct rule_dpif *, |
0e553d9c | 264 | uint8_t tcp_flags, const struct ofpbuf *); |
abe529af BP |
265 | static struct ofpbuf *xlate_actions(struct action_xlate_ctx *, |
266 | const union ofp_action *in, size_t n_in); | |
267 | ||
b0f7b9b5 BP |
268 | /* An exact-match instantiation of an OpenFlow flow. |
269 | * | |
270 | * A facet associates a "struct flow", which represents the Open vSwitch | |
b95fc6ba BP |
271 | * userspace idea of an exact-match flow, with one or more subfacets. Each |
272 | * subfacet tracks the datapath's idea of the exact-match flow equivalent to | |
273 | * the facet. When the kernel module (or other dpif implementation) and Open | |
274 | * vSwitch userspace agree on the definition of a flow key, there is exactly | |
275 | * one subfacet per facet. If the dpif implementation supports more-specific | |
276 | * flow matching than userspace, however, a facet can have more than one | |
277 | * subfacet, each of which corresponds to some distinction in flow that | |
278 | * userspace simply doesn't understand. | |
b0f7b9b5 BP |
279 | * |
280 | * Flow expiration works in terms of subfacets, so a facet must have at least | |
281 | * one subfacet or it will never expire, leaking memory. */ | |
abe529af | 282 | struct facet { |
b0f7b9b5 BP |
283 | /* Owners. */ |
284 | struct hmap_node hmap_node; /* In owning ofproto's 'facets' hmap. */ | |
285 | struct list list_node; /* In owning rule's 'facets' list. */ | |
286 | struct rule_dpif *rule; /* Owning rule. */ | |
287 | ||
288 | /* Owned data. */ | |
289 | struct list subfacets; | |
abe529af BP |
290 | long long int used; /* Time last used; time created if not used. */ |
291 | ||
b0f7b9b5 BP |
292 | /* Key. */ |
293 | struct flow flow; | |
294 | ||
abe529af BP |
295 | /* These statistics: |
296 | * | |
297 | * - Do include packets and bytes sent "by hand", e.g. with | |
298 | * dpif_execute(). | |
299 | * | |
300 | * - Do include packets and bytes that were obtained from the datapath | |
b0f7b9b5 | 301 | * when a subfacet's statistics were reset (e.g. dpif_flow_put() with |
abe529af | 302 | * DPIF_FP_ZERO_STATS). |
b0f7b9b5 BP |
303 | * |
304 | * - Do not include packets or bytes that can be obtained from the | |
305 | * datapath for any existing subfacet. | |
abe529af BP |
306 | */ |
307 | uint64_t packet_count; /* Number of packets received. */ | |
308 | uint64_t byte_count; /* Number of bytes received. */ | |
309 | ||
b0f7b9b5 | 310 | /* Resubmit statistics. */ |
9d24de3b JP |
311 | uint64_t prev_packet_count; /* Number of packets from last stats push. */ |
312 | uint64_t prev_byte_count; /* Number of bytes from last stats push. */ | |
313 | long long int prev_used; /* Used time from last stats push. */ | |
abe529af | 314 | |
b0f7b9b5 | 315 | /* Accounting. */ |
907a4c5e | 316 | uint64_t accounted_bytes; /* Bytes processed by facet_account(). */ |
b0f7b9b5 | 317 | struct netflow_flow nf_flow; /* Per-flow NetFlow tracking data. */ |
0e553d9c | 318 | uint8_t tcp_flags; /* TCP flags seen for this 'rule'. */ |
abe529af | 319 | |
b95fc6ba BP |
320 | /* Properties of datapath actions. |
321 | * | |
322 | * Every subfacet has its own actions because actions can differ slightly | |
323 | * between splintered and non-splintered subfacets due to the VLAN tag | |
324 | * being initially different (present vs. absent). All of them have these | |
325 | * properties in common so we just store one copy of them here. */ | |
b0f7b9b5 | 326 | bool may_install; /* Reassess actions for every packet? */ |
75a75043 BP |
327 | bool has_learn; /* Actions include NXAST_LEARN? */ |
328 | bool has_normal; /* Actions output to OFPP_NORMAL? */ | |
0e553d9c | 329 | bool has_fin_timeout; /* Actions include NXAST_FIN_TIMEOUT? */ |
b0f7b9b5 | 330 | tag_type tags; /* Tags that would require revalidation. */ |
9d24de3b | 331 | mirror_mask_t mirrors; /* Bitmap of dependent mirrors. */ |
abe529af BP |
332 | }; |
333 | ||
f3827897 | 334 | static struct facet *facet_create(struct rule_dpif *, const struct flow *); |
15baa734 | 335 | static void facet_remove(struct facet *); |
abe529af BP |
336 | static void facet_free(struct facet *); |
337 | ||
338 | static struct facet *facet_find(struct ofproto_dpif *, const struct flow *); | |
339 | static struct facet *facet_lookup_valid(struct ofproto_dpif *, | |
340 | const struct flow *); | |
15baa734 | 341 | static bool facet_revalidate(struct facet *); |
6814e51f | 342 | static bool facet_check_consistency(struct facet *); |
abe529af | 343 | |
15baa734 | 344 | static void facet_flush_stats(struct facet *); |
abe529af | 345 | |
15baa734 | 346 | static void facet_update_time(struct facet *, long long int used); |
bbb5d219 | 347 | static void facet_reset_counters(struct facet *); |
abe529af | 348 | static void facet_push_stats(struct facet *); |
15baa734 | 349 | static void facet_account(struct facet *); |
abe529af BP |
350 | |
351 | static bool facet_is_controller_flow(struct facet *); | |
352 | ||
b95fc6ba | 353 | /* A dpif flow and actions associated with a facet. |
b0f7b9b5 BP |
354 | * |
355 | * See also the large comment on struct facet. */ | |
356 | struct subfacet { | |
357 | /* Owners. */ | |
358 | struct hmap_node hmap_node; /* In struct ofproto_dpif 'subfacets' list. */ | |
359 | struct list list_node; /* In struct facet's 'facets' list. */ | |
360 | struct facet *facet; /* Owning facet. */ | |
361 | ||
362 | /* Key. | |
363 | * | |
364 | * To save memory in the common case, 'key' is NULL if 'key_fitness' is | |
365 | * ODP_FIT_PERFECT, that is, odp_flow_key_from_flow() can accurately | |
366 | * regenerate the ODP flow key from ->facet->flow. */ | |
367 | enum odp_key_fitness key_fitness; | |
368 | struct nlattr *key; | |
369 | int key_len; | |
abe529af | 370 | |
b0f7b9b5 BP |
371 | long long int used; /* Time last used; time created if not used. */ |
372 | ||
373 | uint64_t dp_packet_count; /* Last known packet count in the datapath. */ | |
374 | uint64_t dp_byte_count; /* Last known byte count in the datapath. */ | |
375 | ||
b95fc6ba BP |
376 | /* Datapath actions. |
377 | * | |
378 | * These should be essentially identical for every subfacet in a facet, but | |
379 | * may differ in trivial ways due to VLAN splinters. */ | |
380 | size_t actions_len; /* Number of bytes in actions[]. */ | |
381 | struct nlattr *actions; /* Datapath actions. */ | |
382 | ||
b0f7b9b5 | 383 | bool installed; /* Installed in datapath? */ |
e84173dc BP |
384 | |
385 | /* This value is normally the same as ->facet->flow.vlan_tci. Only VLAN | |
386 | * splinters can cause it to differ. This value should be removed when | |
387 | * the VLAN splinters feature is no longer needed. */ | |
388 | ovs_be16 initial_tci; /* Initial VLAN TCI value. */ | |
b0f7b9b5 BP |
389 | }; |
390 | ||
15baa734 | 391 | static struct subfacet *subfacet_create(struct facet *, enum odp_key_fitness, |
b0f7b9b5 | 392 | const struct nlattr *key, |
e84173dc | 393 | size_t key_len, ovs_be16 initial_tci); |
b0f7b9b5 | 394 | static struct subfacet *subfacet_find(struct ofproto_dpif *, |
6a542738 | 395 | const struct nlattr *key, size_t key_len); |
15baa734 BP |
396 | static void subfacet_destroy(struct subfacet *); |
397 | static void subfacet_destroy__(struct subfacet *); | |
6814e51f BP |
398 | static void subfacet_get_key(struct subfacet *, struct odputil_keybuf *, |
399 | struct ofpbuf *key); | |
b0f7b9b5 BP |
400 | static void subfacet_reset_dp_stats(struct subfacet *, |
401 | struct dpif_flow_stats *); | |
15baa734 BP |
402 | static void subfacet_update_time(struct subfacet *, long long int used); |
403 | static void subfacet_update_stats(struct subfacet *, | |
b0f7b9b5 | 404 | const struct dpif_flow_stats *); |
15baa734 | 405 | static void subfacet_make_actions(struct subfacet *, |
b95fc6ba | 406 | const struct ofpbuf *packet); |
15baa734 | 407 | static int subfacet_install(struct subfacet *, |
b0f7b9b5 BP |
408 | const struct nlattr *actions, size_t actions_len, |
409 | struct dpif_flow_stats *); | |
15baa734 | 410 | static void subfacet_uninstall(struct subfacet *); |
54a9cbc9 | 411 | |
abe529af BP |
412 | struct ofport_dpif { |
413 | struct ofport up; | |
414 | ||
415 | uint32_t odp_port; | |
416 | struct ofbundle *bundle; /* Bundle that contains this port, if any. */ | |
417 | struct list bundle_node; /* In struct ofbundle's "ports" list. */ | |
418 | struct cfm *cfm; /* Connectivity Fault Management, if any. */ | |
419 | tag_type tag; /* Tag associated with this port. */ | |
00794817 | 420 | uint32_t bond_stable_id; /* stable_id to use as bond slave, or 0. */ |
015e08bc | 421 | bool may_enable; /* May be enabled in bonds. */ |
3e5b3fdb | 422 | long long int carrier_seq; /* Carrier status changes. */ |
21f7563c | 423 | |
52a90c29 | 424 | /* Spanning tree. */ |
21f7563c JP |
425 | struct stp_port *stp_port; /* Spanning Tree Protocol, if any. */ |
426 | enum stp_state stp_state; /* Always STP_DISABLED if STP not in use. */ | |
427 | long long int stp_state_entered; | |
8b36f51e EJ |
428 | |
429 | struct hmap priorities; /* Map of attached 'priority_to_dscp's. */ | |
52a90c29 BP |
430 | |
431 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) | |
432 | * | |
433 | * This is deprecated. It is only for compatibility with broken device | |
434 | * drivers in old versions of Linux that do not properly support VLANs when | |
435 | * VLAN devices are not used. When broken device drivers are no longer in | |
436 | * widespread use, we will delete these interfaces. */ | |
437 | uint16_t realdev_ofp_port; | |
438 | int vlandev_vid; | |
8b36f51e EJ |
439 | }; |
440 | ||
441 | /* Node in 'ofport_dpif''s 'priorities' map. Used to maintain a map from | |
442 | * 'priority' (the datapath's term for QoS queue) to the dscp bits which all | |
443 | * traffic egressing the 'ofport' with that priority should be marked with. */ | |
444 | struct priority_to_dscp { | |
445 | struct hmap_node hmap_node; /* Node in 'ofport_dpif''s 'priorities' map. */ | |
446 | uint32_t priority; /* Priority of this queue (see struct flow). */ | |
447 | ||
448 | uint8_t dscp; /* DSCP bits to mark outgoing traffic with. */ | |
abe529af BP |
449 | }; |
450 | ||
52a90c29 BP |
451 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) |
452 | * | |
453 | * This is deprecated. It is only for compatibility with broken device drivers | |
454 | * in old versions of Linux that do not properly support VLANs when VLAN | |
455 | * devices are not used. When broken device drivers are no longer in | |
456 | * widespread use, we will delete these interfaces. */ | |
457 | struct vlan_splinter { | |
458 | struct hmap_node realdev_vid_node; | |
459 | struct hmap_node vlandev_node; | |
460 | uint16_t realdev_ofp_port; | |
461 | uint16_t vlandev_ofp_port; | |
462 | int vid; | |
463 | }; | |
464 | ||
465 | static uint32_t vsp_realdev_to_vlandev(const struct ofproto_dpif *, | |
466 | uint32_t realdev, ovs_be16 vlan_tci); | |
467 | static uint16_t vsp_vlandev_to_realdev(const struct ofproto_dpif *, | |
468 | uint16_t vlandev, int *vid); | |
469 | static void vsp_remove(struct ofport_dpif *); | |
470 | static void vsp_add(struct ofport_dpif *, uint16_t realdev_ofp_port, int vid); | |
471 | ||
abe529af BP |
472 | static struct ofport_dpif * |
473 | ofport_dpif_cast(const struct ofport *ofport) | |
474 | { | |
475 | assert(ofport->ofproto->ofproto_class == &ofproto_dpif_class); | |
476 | return ofport ? CONTAINER_OF(ofport, struct ofport_dpif, up) : NULL; | |
477 | } | |
478 | ||
479 | static void port_run(struct ofport_dpif *); | |
480 | static void port_wait(struct ofport_dpif *); | |
a5610457 | 481 | static int set_cfm(struct ofport *, const struct cfm_settings *); |
8b36f51e | 482 | static void ofport_clear_priorities(struct ofport_dpif *); |
abe529af | 483 | |
7ee20df1 BP |
484 | struct dpif_completion { |
485 | struct list list_node; | |
486 | struct ofoperation *op; | |
487 | }; | |
488 | ||
54a9cbc9 BP |
489 | /* Extra information about a classifier table. |
490 | * Currently used just for optimized flow revalidation. */ | |
491 | struct table_dpif { | |
492 | /* If either of these is nonnull, then this table has a form that allows | |
493 | * flows to be tagged to avoid revalidating most flows for the most common | |
494 | * kinds of flow table changes. */ | |
495 | struct cls_table *catchall_table; /* Table that wildcards all fields. */ | |
496 | struct cls_table *other_table; /* Table with any other wildcard set. */ | |
497 | uint32_t basis; /* Keeps each table's tags separate. */ | |
498 | }; | |
499 | ||
abe529af | 500 | struct ofproto_dpif { |
b44a10b7 | 501 | struct hmap_node all_ofproto_dpifs_node; /* In 'all_ofproto_dpifs'. */ |
abe529af BP |
502 | struct ofproto up; |
503 | struct dpif *dpif; | |
504 | int max_ports; | |
505 | ||
6c1491fb BP |
506 | /* Statistics. */ |
507 | uint64_t n_matches; | |
508 | ||
abe529af BP |
509 | /* Bridging. */ |
510 | struct netflow *netflow; | |
bae473fe | 511 | struct dpif_sflow *sflow; |
abe529af BP |
512 | struct hmap bundles; /* Contains "struct ofbundle"s. */ |
513 | struct mac_learning *ml; | |
514 | struct ofmirror *mirrors[MAX_MIRRORS]; | |
515 | bool has_bonded_bundles; | |
516 | ||
517 | /* Expiration. */ | |
518 | struct timer next_expiration; | |
519 | ||
520 | /* Facets. */ | |
521 | struct hmap facets; | |
b0f7b9b5 | 522 | struct hmap subfacets; |
54a9cbc9 BP |
523 | |
524 | /* Revalidation. */ | |
525 | struct table_dpif tables[N_TABLES]; | |
abe529af BP |
526 | bool need_revalidate; |
527 | struct tag_set revalidate_set; | |
7ee20df1 BP |
528 | |
529 | /* Support for debugging async flow mods. */ | |
530 | struct list completions; | |
daff3353 EJ |
531 | |
532 | bool has_bundle_action; /* True when the first bundle action appears. */ | |
6527c598 PS |
533 | struct netdev_stats stats; /* To account packets generated and consumed in |
534 | * userspace. */ | |
21f7563c JP |
535 | |
536 | /* Spanning tree. */ | |
537 | struct stp *stp; | |
538 | long long int stp_last_tick; | |
52a90c29 BP |
539 | |
540 | /* VLAN splinters. */ | |
541 | struct hmap realdev_vid_map; /* (realdev,vid) -> vlandev. */ | |
542 | struct hmap vlandev_map; /* vlandev -> (realdev,vid). */ | |
abe529af BP |
543 | }; |
544 | ||
7ee20df1 BP |
545 | /* Defer flow mod completion until "ovs-appctl ofproto/unclog"? (Useful only |
546 | * for debugging the asynchronous flow_mod implementation.) */ | |
547 | static bool clogged; | |
548 | ||
b44a10b7 BP |
549 | /* All existing ofproto_dpif instances, indexed by ->up.name. */ |
550 | static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs); | |
551 | ||
abe529af BP |
552 | static void ofproto_dpif_unixctl_init(void); |
553 | ||
554 | static struct ofproto_dpif * | |
555 | ofproto_dpif_cast(const struct ofproto *ofproto) | |
556 | { | |
557 | assert(ofproto->ofproto_class == &ofproto_dpif_class); | |
558 | return CONTAINER_OF(ofproto, struct ofproto_dpif, up); | |
559 | } | |
560 | ||
561 | static struct ofport_dpif *get_ofp_port(struct ofproto_dpif *, | |
562 | uint16_t ofp_port); | |
563 | static struct ofport_dpif *get_odp_port(struct ofproto_dpif *, | |
564 | uint32_t odp_port); | |
6a6455e5 EJ |
565 | static void ofproto_trace(struct ofproto_dpif *, const struct flow *, |
566 | const struct ofpbuf *, ovs_be16 initial_tci, | |
567 | struct ds *); | |
abe529af BP |
568 | |
569 | /* Packet processing. */ | |
570 | static void update_learning_table(struct ofproto_dpif *, | |
571 | const struct flow *, int vlan, | |
572 | struct ofbundle *); | |
501f8d1f BP |
573 | /* Upcalls. */ |
574 | #define FLOW_MISS_MAX_BATCH 50 | |
9b16c439 | 575 | static int handle_upcalls(struct ofproto_dpif *, unsigned int max_batch); |
abe529af BP |
576 | |
577 | /* Flow expiration. */ | |
578 | static int expire(struct ofproto_dpif *); | |
579 | ||
6fca1ffb BP |
580 | /* NetFlow. */ |
581 | static void send_netflow_active_timeouts(struct ofproto_dpif *); | |
582 | ||
abe529af | 583 | /* Utilities. */ |
52a90c29 | 584 | static int send_packet(const struct ofport_dpif *, struct ofpbuf *packet); |
6ff686f2 PS |
585 | static size_t |
586 | compose_sflow_action(const struct ofproto_dpif *, struct ofpbuf *odp_actions, | |
587 | const struct flow *, uint32_t odp_port); | |
c06bba01 JP |
588 | static void add_mirror_actions(struct action_xlate_ctx *ctx, |
589 | const struct flow *flow); | |
abe529af BP |
590 | /* Global variables. */ |
591 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
592 | \f | |
593 | /* Factory functions. */ | |
594 | ||
595 | static void | |
596 | enumerate_types(struct sset *types) | |
597 | { | |
598 | dp_enumerate_types(types); | |
599 | } | |
600 | ||
601 | static int | |
602 | enumerate_names(const char *type, struct sset *names) | |
603 | { | |
604 | return dp_enumerate_names(type, names); | |
605 | } | |
606 | ||
607 | static int | |
608 | del(const char *type, const char *name) | |
609 | { | |
610 | struct dpif *dpif; | |
611 | int error; | |
612 | ||
613 | error = dpif_open(name, type, &dpif); | |
614 | if (!error) { | |
615 | error = dpif_delete(dpif); | |
616 | dpif_close(dpif); | |
617 | } | |
618 | return error; | |
619 | } | |
620 | \f | |
621 | /* Basic life-cycle. */ | |
622 | ||
623 | static struct ofproto * | |
624 | alloc(void) | |
625 | { | |
626 | struct ofproto_dpif *ofproto = xmalloc(sizeof *ofproto); | |
627 | return &ofproto->up; | |
628 | } | |
629 | ||
630 | static void | |
631 | dealloc(struct ofproto *ofproto_) | |
632 | { | |
633 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
634 | free(ofproto); | |
635 | } | |
636 | ||
637 | static int | |
0f5f95a9 | 638 | construct(struct ofproto *ofproto_) |
abe529af BP |
639 | { |
640 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
641 | const char *name = ofproto->up.name; | |
642 | int error; | |
643 | int i; | |
644 | ||
645 | error = dpif_create_and_open(name, ofproto->up.type, &ofproto->dpif); | |
646 | if (error) { | |
647 | VLOG_ERR("failed to open datapath %s: %s", name, strerror(error)); | |
648 | return error; | |
649 | } | |
650 | ||
651 | ofproto->max_ports = dpif_get_max_ports(ofproto->dpif); | |
6c1491fb | 652 | ofproto->n_matches = 0; |
abe529af | 653 | |
be8194bb JG |
654 | dpif_flow_flush(ofproto->dpif); |
655 | dpif_recv_purge(ofproto->dpif); | |
656 | ||
a12b3ead | 657 | error = dpif_recv_set(ofproto->dpif, true); |
abe529af BP |
658 | if (error) { |
659 | VLOG_ERR("failed to listen on datapath %s: %s", name, strerror(error)); | |
660 | dpif_close(ofproto->dpif); | |
661 | return error; | |
662 | } | |
abe529af BP |
663 | |
664 | ofproto->netflow = NULL; | |
665 | ofproto->sflow = NULL; | |
21f7563c | 666 | ofproto->stp = NULL; |
abe529af | 667 | hmap_init(&ofproto->bundles); |
e764773c | 668 | ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME); |
abe529af BP |
669 | for (i = 0; i < MAX_MIRRORS; i++) { |
670 | ofproto->mirrors[i] = NULL; | |
671 | } | |
672 | ofproto->has_bonded_bundles = false; | |
673 | ||
674 | timer_set_duration(&ofproto->next_expiration, 1000); | |
675 | ||
676 | hmap_init(&ofproto->facets); | |
b0f7b9b5 | 677 | hmap_init(&ofproto->subfacets); |
54a9cbc9 BP |
678 | |
679 | for (i = 0; i < N_TABLES; i++) { | |
680 | struct table_dpif *table = &ofproto->tables[i]; | |
681 | ||
682 | table->catchall_table = NULL; | |
683 | table->other_table = NULL; | |
684 | table->basis = random_uint32(); | |
685 | } | |
abe529af BP |
686 | ofproto->need_revalidate = false; |
687 | tag_set_init(&ofproto->revalidate_set); | |
688 | ||
7ee20df1 BP |
689 | list_init(&ofproto->completions); |
690 | ||
abe529af BP |
691 | ofproto_dpif_unixctl_init(); |
692 | ||
daff3353 EJ |
693 | ofproto->has_bundle_action = false; |
694 | ||
52a90c29 BP |
695 | hmap_init(&ofproto->vlandev_map); |
696 | hmap_init(&ofproto->realdev_vid_map); | |
697 | ||
b44a10b7 BP |
698 | hmap_insert(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node, |
699 | hash_string(ofproto->up.name, 0)); | |
6527c598 | 700 | memset(&ofproto->stats, 0, sizeof ofproto->stats); |
0f5f95a9 BP |
701 | |
702 | ofproto_init_tables(ofproto_, N_TABLES); | |
703 | ||
abe529af BP |
704 | return 0; |
705 | } | |
706 | ||
7ee20df1 BP |
707 | static void |
708 | complete_operations(struct ofproto_dpif *ofproto) | |
709 | { | |
710 | struct dpif_completion *c, *next; | |
711 | ||
712 | LIST_FOR_EACH_SAFE (c, next, list_node, &ofproto->completions) { | |
713 | ofoperation_complete(c->op, 0); | |
714 | list_remove(&c->list_node); | |
715 | free(c); | |
716 | } | |
717 | } | |
718 | ||
abe529af BP |
719 | static void |
720 | destruct(struct ofproto *ofproto_) | |
721 | { | |
722 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
7ee20df1 | 723 | struct rule_dpif *rule, *next_rule; |
d0918789 | 724 | struct oftable *table; |
abe529af BP |
725 | int i; |
726 | ||
b44a10b7 | 727 | hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node); |
7ee20df1 BP |
728 | complete_operations(ofproto); |
729 | ||
0697b5c3 BP |
730 | OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) { |
731 | struct cls_cursor cursor; | |
732 | ||
d0918789 | 733 | cls_cursor_init(&cursor, &table->cls, NULL); |
0697b5c3 BP |
734 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) { |
735 | ofproto_rule_destroy(&rule->up); | |
736 | } | |
7ee20df1 BP |
737 | } |
738 | ||
abe529af BP |
739 | for (i = 0; i < MAX_MIRRORS; i++) { |
740 | mirror_destroy(ofproto->mirrors[i]); | |
741 | } | |
742 | ||
743 | netflow_destroy(ofproto->netflow); | |
bae473fe | 744 | dpif_sflow_destroy(ofproto->sflow); |
abe529af BP |
745 | hmap_destroy(&ofproto->bundles); |
746 | mac_learning_destroy(ofproto->ml); | |
747 | ||
748 | hmap_destroy(&ofproto->facets); | |
b0f7b9b5 | 749 | hmap_destroy(&ofproto->subfacets); |
abe529af | 750 | |
52a90c29 BP |
751 | hmap_destroy(&ofproto->vlandev_map); |
752 | hmap_destroy(&ofproto->realdev_vid_map); | |
753 | ||
abe529af BP |
754 | dpif_close(ofproto->dpif); |
755 | } | |
756 | ||
757 | static int | |
5fcc0d00 | 758 | run_fast(struct ofproto *ofproto_) |
abe529af BP |
759 | { |
760 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
9b16c439 | 761 | unsigned int work; |
abe529af | 762 | |
9b16c439 BP |
763 | /* Handle one or more batches of upcalls, until there's nothing left to do |
764 | * or until we do a fixed total amount of work. | |
765 | * | |
766 | * We do work in batches because it can be much cheaper to set up a number | |
767 | * of flows and fire off their patches all at once. We do multiple batches | |
768 | * because in some cases handling a packet can cause another packet to be | |
769 | * queued almost immediately as part of the return flow. Both | |
770 | * optimizations can make major improvements on some benchmarks and | |
771 | * presumably for real traffic as well. */ | |
772 | work = 0; | |
773 | while (work < FLOW_MISS_MAX_BATCH) { | |
774 | int retval = handle_upcalls(ofproto, FLOW_MISS_MAX_BATCH - work); | |
5fcc0d00 | 775 | if (retval <= 0) { |
9b16c439 | 776 | return -retval; |
501f8d1f | 777 | } |
5fcc0d00 BP |
778 | work += retval; |
779 | } | |
780 | return 0; | |
781 | } | |
782 | ||
783 | static int | |
784 | run(struct ofproto *ofproto_) | |
785 | { | |
786 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
787 | struct ofport_dpif *ofport; | |
788 | struct ofbundle *bundle; | |
789 | int error; | |
790 | ||
791 | if (!clogged) { | |
792 | complete_operations(ofproto); | |
793 | } | |
794 | dpif_run(ofproto->dpif); | |
795 | ||
796 | error = run_fast(ofproto_); | |
797 | if (error) { | |
798 | return error; | |
abe529af BP |
799 | } |
800 | ||
801 | if (timer_expired(&ofproto->next_expiration)) { | |
802 | int delay = expire(ofproto); | |
803 | timer_set_duration(&ofproto->next_expiration, delay); | |
804 | } | |
805 | ||
806 | if (ofproto->netflow) { | |
6fca1ffb BP |
807 | if (netflow_run(ofproto->netflow)) { |
808 | send_netflow_active_timeouts(ofproto); | |
809 | } | |
abe529af BP |
810 | } |
811 | if (ofproto->sflow) { | |
bae473fe | 812 | dpif_sflow_run(ofproto->sflow); |
abe529af BP |
813 | } |
814 | ||
815 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
816 | port_run(ofport); | |
817 | } | |
818 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
819 | bundle_run(bundle); | |
820 | } | |
821 | ||
21f7563c | 822 | stp_run(ofproto); |
1c313b88 BP |
823 | mac_learning_run(ofproto->ml, &ofproto->revalidate_set); |
824 | ||
abe529af BP |
825 | /* Now revalidate if there's anything to do. */ |
826 | if (ofproto->need_revalidate | |
827 | || !tag_set_is_empty(&ofproto->revalidate_set)) { | |
828 | struct tag_set revalidate_set = ofproto->revalidate_set; | |
829 | bool revalidate_all = ofproto->need_revalidate; | |
830 | struct facet *facet, *next; | |
831 | ||
832 | /* Clear the revalidation flags. */ | |
833 | tag_set_init(&ofproto->revalidate_set); | |
834 | ofproto->need_revalidate = false; | |
835 | ||
836 | HMAP_FOR_EACH_SAFE (facet, next, hmap_node, &ofproto->facets) { | |
837 | if (revalidate_all | |
838 | || tag_set_intersects(&revalidate_set, facet->tags)) { | |
15baa734 | 839 | facet_revalidate(facet); |
abe529af BP |
840 | } |
841 | } | |
842 | } | |
843 | ||
6814e51f BP |
844 | /* Check the consistency of a random facet, to aid debugging. */ |
845 | if (!hmap_is_empty(&ofproto->facets) && !ofproto->need_revalidate) { | |
846 | struct facet *facet; | |
847 | ||
848 | facet = CONTAINER_OF(hmap_random_node(&ofproto->facets), | |
849 | struct facet, hmap_node); | |
850 | if (!tag_set_intersects(&ofproto->revalidate_set, facet->tags)) { | |
851 | if (!facet_check_consistency(facet)) { | |
852 | ofproto->need_revalidate = true; | |
853 | } | |
854 | } | |
855 | } | |
856 | ||
abe529af BP |
857 | return 0; |
858 | } | |
859 | ||
860 | static void | |
861 | wait(struct ofproto *ofproto_) | |
862 | { | |
863 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
864 | struct ofport_dpif *ofport; | |
865 | struct ofbundle *bundle; | |
866 | ||
7ee20df1 BP |
867 | if (!clogged && !list_is_empty(&ofproto->completions)) { |
868 | poll_immediate_wake(); | |
869 | } | |
870 | ||
abe529af BP |
871 | dpif_wait(ofproto->dpif); |
872 | dpif_recv_wait(ofproto->dpif); | |
873 | if (ofproto->sflow) { | |
bae473fe | 874 | dpif_sflow_wait(ofproto->sflow); |
abe529af BP |
875 | } |
876 | if (!tag_set_is_empty(&ofproto->revalidate_set)) { | |
877 | poll_immediate_wake(); | |
878 | } | |
879 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { | |
880 | port_wait(ofport); | |
881 | } | |
882 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
883 | bundle_wait(bundle); | |
884 | } | |
6fca1ffb BP |
885 | if (ofproto->netflow) { |
886 | netflow_wait(ofproto->netflow); | |
887 | } | |
1c313b88 | 888 | mac_learning_wait(ofproto->ml); |
21f7563c | 889 | stp_wait(ofproto); |
abe529af BP |
890 | if (ofproto->need_revalidate) { |
891 | /* Shouldn't happen, but if it does just go around again. */ | |
892 | VLOG_DBG_RL(&rl, "need revalidate in ofproto_wait_cb()"); | |
893 | poll_immediate_wake(); | |
894 | } else { | |
895 | timer_wait(&ofproto->next_expiration); | |
896 | } | |
897 | } | |
898 | ||
899 | static void | |
900 | flush(struct ofproto *ofproto_) | |
901 | { | |
902 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
903 | struct facet *facet, *next_facet; | |
904 | ||
905 | HMAP_FOR_EACH_SAFE (facet, next_facet, hmap_node, &ofproto->facets) { | |
906 | /* Mark the facet as not installed so that facet_remove() doesn't | |
907 | * bother trying to uninstall it. There is no point in uninstalling it | |
908 | * individually since we are about to blow away all the facets with | |
909 | * dpif_flow_flush(). */ | |
b0f7b9b5 BP |
910 | struct subfacet *subfacet; |
911 | ||
912 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
913 | subfacet->installed = false; | |
914 | subfacet->dp_packet_count = 0; | |
915 | subfacet->dp_byte_count = 0; | |
916 | } | |
15baa734 | 917 | facet_remove(facet); |
abe529af BP |
918 | } |
919 | dpif_flow_flush(ofproto->dpif); | |
920 | } | |
921 | ||
6c1491fb BP |
922 | static void |
923 | get_features(struct ofproto *ofproto_ OVS_UNUSED, | |
9e1fd49b | 924 | bool *arp_match_ip, enum ofputil_action_bitmap *actions) |
6c1491fb BP |
925 | { |
926 | *arp_match_ip = true; | |
9e1fd49b BP |
927 | *actions = (OFPUTIL_A_OUTPUT | |
928 | OFPUTIL_A_SET_VLAN_VID | | |
929 | OFPUTIL_A_SET_VLAN_PCP | | |
930 | OFPUTIL_A_STRIP_VLAN | | |
931 | OFPUTIL_A_SET_DL_SRC | | |
932 | OFPUTIL_A_SET_DL_DST | | |
933 | OFPUTIL_A_SET_NW_SRC | | |
934 | OFPUTIL_A_SET_NW_DST | | |
935 | OFPUTIL_A_SET_NW_TOS | | |
936 | OFPUTIL_A_SET_TP_SRC | | |
937 | OFPUTIL_A_SET_TP_DST | | |
938 | OFPUTIL_A_ENQUEUE); | |
6c1491fb BP |
939 | } |
940 | ||
941 | static void | |
942 | get_tables(struct ofproto *ofproto_, struct ofp_table_stats *ots) | |
943 | { | |
944 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
a8d9304d | 945 | struct dpif_dp_stats s; |
6c1491fb BP |
946 | |
947 | strcpy(ots->name, "classifier"); | |
948 | ||
949 | dpif_get_dp_stats(ofproto->dpif, &s); | |
950 | put_32aligned_be64(&ots->lookup_count, htonll(s.n_hit + s.n_missed)); | |
951 | put_32aligned_be64(&ots->matched_count, | |
952 | htonll(s.n_hit + ofproto->n_matches)); | |
953 | } | |
954 | ||
abe529af BP |
955 | static struct ofport * |
956 | port_alloc(void) | |
957 | { | |
958 | struct ofport_dpif *port = xmalloc(sizeof *port); | |
959 | return &port->up; | |
960 | } | |
961 | ||
962 | static void | |
963 | port_dealloc(struct ofport *port_) | |
964 | { | |
965 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
966 | free(port); | |
967 | } | |
968 | ||
969 | static int | |
970 | port_construct(struct ofport *port_) | |
971 | { | |
972 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
973 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
974 | ||
f11c28c4 | 975 | ofproto->need_revalidate = true; |
abe529af BP |
976 | port->odp_port = ofp_port_to_odp_port(port->up.ofp_port); |
977 | port->bundle = NULL; | |
978 | port->cfm = NULL; | |
979 | port->tag = tag_create_random(); | |
d5ffa7f2 | 980 | port->may_enable = true; |
21f7563c JP |
981 | port->stp_port = NULL; |
982 | port->stp_state = STP_DISABLED; | |
8b36f51e | 983 | hmap_init(&port->priorities); |
52a90c29 BP |
984 | port->realdev_ofp_port = 0; |
985 | port->vlandev_vid = 0; | |
3e5b3fdb | 986 | port->carrier_seq = netdev_get_carrier_resets(port->up.netdev); |
abe529af BP |
987 | |
988 | if (ofproto->sflow) { | |
392c7182 | 989 | dpif_sflow_add_port(ofproto->sflow, port_); |
abe529af BP |
990 | } |
991 | ||
992 | return 0; | |
993 | } | |
994 | ||
995 | static void | |
996 | port_destruct(struct ofport *port_) | |
997 | { | |
998 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
999 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
1000 | ||
f11c28c4 | 1001 | ofproto->need_revalidate = true; |
abe529af | 1002 | bundle_remove(port_); |
a5610457 | 1003 | set_cfm(port_, NULL); |
abe529af | 1004 | if (ofproto->sflow) { |
bae473fe | 1005 | dpif_sflow_del_port(ofproto->sflow, port->odp_port); |
abe529af | 1006 | } |
8b36f51e EJ |
1007 | |
1008 | ofport_clear_priorities(port); | |
1009 | hmap_destroy(&port->priorities); | |
abe529af BP |
1010 | } |
1011 | ||
1012 | static void | |
1013 | port_modified(struct ofport *port_) | |
1014 | { | |
1015 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1016 | ||
1017 | if (port->bundle && port->bundle->bond) { | |
1018 | bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev); | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | static void | |
9e1fd49b | 1023 | port_reconfigured(struct ofport *port_, enum ofputil_port_config old_config) |
abe529af BP |
1024 | { |
1025 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1026 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
9e1fd49b | 1027 | enum ofputil_port_config changed = old_config ^ port->up.pp.config; |
abe529af | 1028 | |
9e1fd49b BP |
1029 | if (changed & (OFPUTIL_PC_NO_RECV | OFPUTIL_PC_NO_RECV_STP | |
1030 | OFPUTIL_PC_NO_FWD | OFPUTIL_PC_NO_FLOOD)) { | |
abe529af | 1031 | ofproto->need_revalidate = true; |
7bde8dd8 | 1032 | |
9e1fd49b | 1033 | if (changed & OFPUTIL_PC_NO_FLOOD && port->bundle) { |
7bde8dd8 JP |
1034 | bundle_update(port->bundle); |
1035 | } | |
abe529af BP |
1036 | } |
1037 | } | |
1038 | ||
1039 | static int | |
1040 | set_sflow(struct ofproto *ofproto_, | |
1041 | const struct ofproto_sflow_options *sflow_options) | |
1042 | { | |
1043 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
bae473fe | 1044 | struct dpif_sflow *ds = ofproto->sflow; |
6ff686f2 | 1045 | |
abe529af | 1046 | if (sflow_options) { |
bae473fe | 1047 | if (!ds) { |
abe529af BP |
1048 | struct ofport_dpif *ofport; |
1049 | ||
bae473fe | 1050 | ds = ofproto->sflow = dpif_sflow_create(ofproto->dpif); |
abe529af | 1051 | HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) { |
392c7182 | 1052 | dpif_sflow_add_port(ds, &ofport->up); |
abe529af | 1053 | } |
6ff686f2 | 1054 | ofproto->need_revalidate = true; |
abe529af | 1055 | } |
bae473fe | 1056 | dpif_sflow_set_options(ds, sflow_options); |
abe529af | 1057 | } else { |
6ff686f2 PS |
1058 | if (ds) { |
1059 | dpif_sflow_destroy(ds); | |
1060 | ofproto->need_revalidate = true; | |
1061 | ofproto->sflow = NULL; | |
1062 | } | |
abe529af BP |
1063 | } |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | static int | |
a5610457 | 1068 | set_cfm(struct ofport *ofport_, const struct cfm_settings *s) |
abe529af BP |
1069 | { |
1070 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1071 | int error; | |
1072 | ||
a5610457 | 1073 | if (!s) { |
abe529af BP |
1074 | error = 0; |
1075 | } else { | |
1076 | if (!ofport->cfm) { | |
8c977421 EJ |
1077 | struct ofproto_dpif *ofproto; |
1078 | ||
1079 | ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1080 | ofproto->need_revalidate = true; | |
6f629657 | 1081 | ofport->cfm = cfm_create(netdev_get_name(ofport->up.netdev)); |
abe529af BP |
1082 | } |
1083 | ||
a5610457 | 1084 | if (cfm_configure(ofport->cfm, s)) { |
abe529af BP |
1085 | return 0; |
1086 | } | |
1087 | ||
1088 | error = EINVAL; | |
1089 | } | |
1090 | cfm_destroy(ofport->cfm); | |
1091 | ofport->cfm = NULL; | |
1092 | return error; | |
1093 | } | |
1094 | ||
1095 | static int | |
a5610457 | 1096 | get_cfm_fault(const struct ofport *ofport_) |
abe529af BP |
1097 | { |
1098 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
a5610457 EJ |
1099 | |
1100 | return ofport->cfm ? cfm_get_fault(ofport->cfm) : -1; | |
abe529af | 1101 | } |
1de11730 EJ |
1102 | |
1103 | static int | |
1104 | get_cfm_remote_mpids(const struct ofport *ofport_, const uint64_t **rmps, | |
1105 | size_t *n_rmps) | |
1106 | { | |
1107 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1108 | ||
1109 | if (ofport->cfm) { | |
1110 | cfm_get_remote_mpids(ofport->cfm, rmps, n_rmps); | |
1111 | return 0; | |
1112 | } else { | |
1113 | return -1; | |
1114 | } | |
1115 | } | |
abe529af | 1116 | \f |
21f7563c JP |
1117 | /* Spanning Tree. */ |
1118 | ||
1119 | static void | |
1120 | send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_) | |
1121 | { | |
1122 | struct ofproto_dpif *ofproto = ofproto_; | |
1123 | struct stp_port *sp = stp_get_port(ofproto->stp, port_num); | |
1124 | struct ofport_dpif *ofport; | |
1125 | ||
1126 | ofport = stp_port_get_aux(sp); | |
1127 | if (!ofport) { | |
1128 | VLOG_WARN_RL(&rl, "%s: cannot send BPDU on unknown port %d", | |
1129 | ofproto->up.name, port_num); | |
1130 | } else { | |
1131 | struct eth_header *eth = pkt->l2; | |
1132 | ||
1133 | netdev_get_etheraddr(ofport->up.netdev, eth->eth_src); | |
1134 | if (eth_addr_is_zero(eth->eth_src)) { | |
1135 | VLOG_WARN_RL(&rl, "%s: cannot send BPDU on port %d " | |
1136 | "with unknown MAC", ofproto->up.name, port_num); | |
1137 | } else { | |
97d6520b | 1138 | send_packet(ofport, pkt); |
21f7563c JP |
1139 | } |
1140 | } | |
1141 | ofpbuf_delete(pkt); | |
1142 | } | |
1143 | ||
1144 | /* Configures STP on 'ofproto_' using the settings defined in 's'. */ | |
1145 | static int | |
1146 | set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s) | |
1147 | { | |
1148 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1149 | ||
1150 | /* Only revalidate flows if the configuration changed. */ | |
1151 | if (!s != !ofproto->stp) { | |
1152 | ofproto->need_revalidate = true; | |
1153 | } | |
1154 | ||
1155 | if (s) { | |
1156 | if (!ofproto->stp) { | |
1157 | ofproto->stp = stp_create(ofproto_->name, s->system_id, | |
1158 | send_bpdu_cb, ofproto); | |
1159 | ofproto->stp_last_tick = time_msec(); | |
1160 | } | |
1161 | ||
1162 | stp_set_bridge_id(ofproto->stp, s->system_id); | |
1163 | stp_set_bridge_priority(ofproto->stp, s->priority); | |
1164 | stp_set_hello_time(ofproto->stp, s->hello_time); | |
1165 | stp_set_max_age(ofproto->stp, s->max_age); | |
1166 | stp_set_forward_delay(ofproto->stp, s->fwd_delay); | |
1167 | } else { | |
851bf71d EJ |
1168 | struct ofport *ofport; |
1169 | ||
1170 | HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) { | |
1171 | set_stp_port(ofport, NULL); | |
1172 | } | |
1173 | ||
21f7563c JP |
1174 | stp_destroy(ofproto->stp); |
1175 | ofproto->stp = NULL; | |
1176 | } | |
1177 | ||
1178 | return 0; | |
1179 | } | |
1180 | ||
1181 | static int | |
1182 | get_stp_status(struct ofproto *ofproto_, struct ofproto_stp_status *s) | |
1183 | { | |
1184 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1185 | ||
1186 | if (ofproto->stp) { | |
1187 | s->enabled = true; | |
1188 | s->bridge_id = stp_get_bridge_id(ofproto->stp); | |
1189 | s->designated_root = stp_get_designated_root(ofproto->stp); | |
1190 | s->root_path_cost = stp_get_root_path_cost(ofproto->stp); | |
1191 | } else { | |
1192 | s->enabled = false; | |
1193 | } | |
1194 | ||
1195 | return 0; | |
1196 | } | |
1197 | ||
1198 | static void | |
1199 | update_stp_port_state(struct ofport_dpif *ofport) | |
1200 | { | |
1201 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1202 | enum stp_state state; | |
1203 | ||
1204 | /* Figure out new state. */ | |
1205 | state = ofport->stp_port ? stp_port_get_state(ofport->stp_port) | |
1206 | : STP_DISABLED; | |
1207 | ||
1208 | /* Update state. */ | |
1209 | if (ofport->stp_state != state) { | |
9e1fd49b | 1210 | enum ofputil_port_state of_state; |
21f7563c JP |
1211 | bool fwd_change; |
1212 | ||
1213 | VLOG_DBG_RL(&rl, "port %s: STP state changed from %s to %s", | |
1214 | netdev_get_name(ofport->up.netdev), | |
1215 | stp_state_name(ofport->stp_state), | |
1216 | stp_state_name(state)); | |
1217 | if (stp_learn_in_state(ofport->stp_state) | |
1218 | != stp_learn_in_state(state)) { | |
1219 | /* xxx Learning action flows should also be flushed. */ | |
d0040604 | 1220 | mac_learning_flush(ofproto->ml, &ofproto->revalidate_set); |
21f7563c JP |
1221 | } |
1222 | fwd_change = stp_forward_in_state(ofport->stp_state) | |
1223 | != stp_forward_in_state(state); | |
1224 | ||
1225 | ofproto->need_revalidate = true; | |
1226 | ofport->stp_state = state; | |
1227 | ofport->stp_state_entered = time_msec(); | |
1228 | ||
b308140a | 1229 | if (fwd_change && ofport->bundle) { |
21f7563c JP |
1230 | bundle_update(ofport->bundle); |
1231 | } | |
1232 | ||
1233 | /* Update the STP state bits in the OpenFlow port description. */ | |
9e1fd49b BP |
1234 | of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK; |
1235 | of_state |= (state == STP_LISTENING ? OFPUTIL_PS_STP_LISTEN | |
1236 | : state == STP_LEARNING ? OFPUTIL_PS_STP_LEARN | |
1237 | : state == STP_FORWARDING ? OFPUTIL_PS_STP_FORWARD | |
1238 | : state == STP_BLOCKING ? OFPUTIL_PS_STP_BLOCK | |
1239 | : 0); | |
21f7563c JP |
1240 | ofproto_port_set_state(&ofport->up, of_state); |
1241 | } | |
1242 | } | |
1243 | ||
1244 | /* Configures STP on 'ofport_' using the settings defined in 's'. The | |
1245 | * caller is responsible for assigning STP port numbers and ensuring | |
1246 | * there are no duplicates. */ | |
1247 | static int | |
1248 | set_stp_port(struct ofport *ofport_, | |
1249 | const struct ofproto_port_stp_settings *s) | |
1250 | { | |
1251 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1252 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1253 | struct stp_port *sp = ofport->stp_port; | |
1254 | ||
1255 | if (!s || !s->enable) { | |
1256 | if (sp) { | |
1257 | ofport->stp_port = NULL; | |
1258 | stp_port_disable(sp); | |
ecd12731 | 1259 | update_stp_port_state(ofport); |
21f7563c JP |
1260 | } |
1261 | return 0; | |
1262 | } else if (sp && stp_port_no(sp) != s->port_num | |
1263 | && ofport == stp_port_get_aux(sp)) { | |
1264 | /* The port-id changed, so disable the old one if it's not | |
1265 | * already in use by another port. */ | |
1266 | stp_port_disable(sp); | |
1267 | } | |
1268 | ||
1269 | sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num); | |
1270 | stp_port_enable(sp); | |
1271 | ||
1272 | stp_port_set_aux(sp, ofport); | |
1273 | stp_port_set_priority(sp, s->priority); | |
1274 | stp_port_set_path_cost(sp, s->path_cost); | |
1275 | ||
1276 | update_stp_port_state(ofport); | |
1277 | ||
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | static int | |
1282 | get_stp_port_status(struct ofport *ofport_, | |
1283 | struct ofproto_port_stp_status *s) | |
1284 | { | |
1285 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1286 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1287 | struct stp_port *sp = ofport->stp_port; | |
1288 | ||
1289 | if (!ofproto->stp || !sp) { | |
1290 | s->enabled = false; | |
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | s->enabled = true; | |
1295 | s->port_id = stp_port_get_id(sp); | |
1296 | s->state = stp_port_get_state(sp); | |
1297 | s->sec_in_state = (time_msec() - ofport->stp_state_entered) / 1000; | |
1298 | s->role = stp_port_get_role(sp); | |
80740385 | 1299 | stp_port_get_counts(sp, &s->tx_count, &s->rx_count, &s->error_count); |
21f7563c JP |
1300 | |
1301 | return 0; | |
1302 | } | |
1303 | ||
1304 | static void | |
1305 | stp_run(struct ofproto_dpif *ofproto) | |
1306 | { | |
1307 | if (ofproto->stp) { | |
1308 | long long int now = time_msec(); | |
1309 | long long int elapsed = now - ofproto->stp_last_tick; | |
1310 | struct stp_port *sp; | |
1311 | ||
1312 | if (elapsed > 0) { | |
1313 | stp_tick(ofproto->stp, MIN(INT_MAX, elapsed)); | |
1314 | ofproto->stp_last_tick = now; | |
1315 | } | |
1316 | while (stp_get_changed_port(ofproto->stp, &sp)) { | |
1317 | struct ofport_dpif *ofport = stp_port_get_aux(sp); | |
1318 | ||
1319 | if (ofport) { | |
1320 | update_stp_port_state(ofport); | |
1321 | } | |
1322 | } | |
6ae50723 EJ |
1323 | |
1324 | if (stp_check_and_reset_fdb_flush(ofproto->stp)) { | |
1325 | mac_learning_flush(ofproto->ml, &ofproto->revalidate_set); | |
1326 | } | |
21f7563c JP |
1327 | } |
1328 | } | |
1329 | ||
1330 | static void | |
1331 | stp_wait(struct ofproto_dpif *ofproto) | |
1332 | { | |
1333 | if (ofproto->stp) { | |
1334 | poll_timer_wait(1000); | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | /* Returns true if STP should process 'flow'. */ | |
1339 | static bool | |
1340 | stp_should_process_flow(const struct flow *flow) | |
1341 | { | |
1342 | return eth_addr_equals(flow->dl_dst, eth_addr_stp); | |
1343 | } | |
1344 | ||
1345 | static void | |
1346 | stp_process_packet(const struct ofport_dpif *ofport, | |
1347 | const struct ofpbuf *packet) | |
1348 | { | |
1349 | struct ofpbuf payload = *packet; | |
1350 | struct eth_header *eth = payload.data; | |
1351 | struct stp_port *sp = ofport->stp_port; | |
1352 | ||
1353 | /* Sink packets on ports that have STP disabled when the bridge has | |
1354 | * STP enabled. */ | |
1355 | if (!sp || stp_port_get_state(sp) == STP_DISABLED) { | |
1356 | return; | |
1357 | } | |
1358 | ||
1359 | /* Trim off padding on payload. */ | |
c573540b BP |
1360 | if (payload.size > ntohs(eth->eth_type) + ETH_HEADER_LEN) { |
1361 | payload.size = ntohs(eth->eth_type) + ETH_HEADER_LEN; | |
21f7563c JP |
1362 | } |
1363 | ||
1364 | if (ofpbuf_try_pull(&payload, ETH_HEADER_LEN + LLC_HEADER_LEN)) { | |
1365 | stp_received_bpdu(sp, payload.data, payload.size); | |
1366 | } | |
1367 | } | |
1368 | \f | |
8b36f51e EJ |
1369 | static struct priority_to_dscp * |
1370 | get_priority(const struct ofport_dpif *ofport, uint32_t priority) | |
1371 | { | |
1372 | struct priority_to_dscp *pdscp; | |
1373 | uint32_t hash; | |
1374 | ||
1375 | hash = hash_int(priority, 0); | |
1376 | HMAP_FOR_EACH_IN_BUCKET (pdscp, hmap_node, hash, &ofport->priorities) { | |
1377 | if (pdscp->priority == priority) { | |
1378 | return pdscp; | |
1379 | } | |
1380 | } | |
1381 | return NULL; | |
1382 | } | |
1383 | ||
1384 | static void | |
1385 | ofport_clear_priorities(struct ofport_dpif *ofport) | |
1386 | { | |
1387 | struct priority_to_dscp *pdscp, *next; | |
1388 | ||
1389 | HMAP_FOR_EACH_SAFE (pdscp, next, hmap_node, &ofport->priorities) { | |
1390 | hmap_remove(&ofport->priorities, &pdscp->hmap_node); | |
1391 | free(pdscp); | |
1392 | } | |
1393 | } | |
1394 | ||
1395 | static int | |
1396 | set_queues(struct ofport *ofport_, | |
1397 | const struct ofproto_port_queue *qdscp_list, | |
1398 | size_t n_qdscp) | |
1399 | { | |
1400 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
1401 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
1402 | struct hmap new = HMAP_INITIALIZER(&new); | |
1403 | size_t i; | |
1404 | ||
1405 | for (i = 0; i < n_qdscp; i++) { | |
1406 | struct priority_to_dscp *pdscp; | |
1407 | uint32_t priority; | |
1408 | uint8_t dscp; | |
1409 | ||
1410 | dscp = (qdscp_list[i].dscp << 2) & IP_DSCP_MASK; | |
1411 | if (dpif_queue_to_priority(ofproto->dpif, qdscp_list[i].queue, | |
1412 | &priority)) { | |
1413 | continue; | |
1414 | } | |
1415 | ||
1416 | pdscp = get_priority(ofport, priority); | |
1417 | if (pdscp) { | |
1418 | hmap_remove(&ofport->priorities, &pdscp->hmap_node); | |
1419 | } else { | |
1420 | pdscp = xmalloc(sizeof *pdscp); | |
1421 | pdscp->priority = priority; | |
1422 | pdscp->dscp = dscp; | |
1423 | ofproto->need_revalidate = true; | |
1424 | } | |
1425 | ||
1426 | if (pdscp->dscp != dscp) { | |
1427 | pdscp->dscp = dscp; | |
1428 | ofproto->need_revalidate = true; | |
1429 | } | |
1430 | ||
1431 | hmap_insert(&new, &pdscp->hmap_node, hash_int(pdscp->priority, 0)); | |
1432 | } | |
1433 | ||
1434 | if (!hmap_is_empty(&ofport->priorities)) { | |
1435 | ofport_clear_priorities(ofport); | |
1436 | ofproto->need_revalidate = true; | |
1437 | } | |
1438 | ||
1439 | hmap_swap(&new, &ofport->priorities); | |
1440 | hmap_destroy(&new); | |
1441 | ||
1442 | return 0; | |
1443 | } | |
1444 | \f | |
abe529af BP |
1445 | /* Bundles. */ |
1446 | ||
b44a10b7 BP |
1447 | /* Expires all MAC learning entries associated with 'bundle' and forces its |
1448 | * ofproto to revalidate every flow. | |
1449 | * | |
1450 | * Normally MAC learning entries are removed only from the ofproto associated | |
1451 | * with 'bundle', but if 'all_ofprotos' is true, then the MAC learning entries | |
1452 | * are removed from every ofproto. When patch ports and SLB bonds are in use | |
1453 | * and a VM migration happens and the gratuitous ARPs are somehow lost, this | |
1454 | * avoids a MAC_ENTRY_IDLE_TIME delay before the migrated VM can communicate | |
1455 | * with the host from which it migrated. */ | |
abe529af | 1456 | static void |
b44a10b7 | 1457 | bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos) |
abe529af BP |
1458 | { |
1459 | struct ofproto_dpif *ofproto = bundle->ofproto; | |
1460 | struct mac_learning *ml = ofproto->ml; | |
1461 | struct mac_entry *mac, *next_mac; | |
1462 | ||
1463 | ofproto->need_revalidate = true; | |
1464 | LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) { | |
1465 | if (mac->port.p == bundle) { | |
b44a10b7 BP |
1466 | if (all_ofprotos) { |
1467 | struct ofproto_dpif *o; | |
1468 | ||
1469 | HMAP_FOR_EACH (o, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
1470 | if (o != ofproto) { | |
1471 | struct mac_entry *e; | |
1472 | ||
1473 | e = mac_learning_lookup(o->ml, mac->mac, mac->vlan, | |
1474 | NULL); | |
1475 | if (e) { | |
1476 | tag_set_add(&o->revalidate_set, e->tag); | |
1477 | mac_learning_expire(o->ml, e); | |
1478 | } | |
1479 | } | |
1480 | } | |
1481 | } | |
1482 | ||
abe529af BP |
1483 | mac_learning_expire(ml, mac); |
1484 | } | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | static struct ofbundle * | |
1489 | bundle_lookup(const struct ofproto_dpif *ofproto, void *aux) | |
1490 | { | |
1491 | struct ofbundle *bundle; | |
1492 | ||
1493 | HMAP_FOR_EACH_IN_BUCKET (bundle, hmap_node, hash_pointer(aux, 0), | |
1494 | &ofproto->bundles) { | |
1495 | if (bundle->aux == aux) { | |
1496 | return bundle; | |
1497 | } | |
1498 | } | |
1499 | return NULL; | |
1500 | } | |
1501 | ||
1502 | /* Looks up each of the 'n_auxes' pointers in 'auxes' as bundles and adds the | |
1503 | * ones that are found to 'bundles'. */ | |
1504 | static void | |
1505 | bundle_lookup_multiple(struct ofproto_dpif *ofproto, | |
1506 | void **auxes, size_t n_auxes, | |
1507 | struct hmapx *bundles) | |
1508 | { | |
1509 | size_t i; | |
1510 | ||
1511 | hmapx_init(bundles); | |
1512 | for (i = 0; i < n_auxes; i++) { | |
1513 | struct ofbundle *bundle = bundle_lookup(ofproto, auxes[i]); | |
1514 | if (bundle) { | |
1515 | hmapx_add(bundles, bundle); | |
1516 | } | |
1517 | } | |
1518 | } | |
1519 | ||
7bde8dd8 JP |
1520 | static void |
1521 | bundle_update(struct ofbundle *bundle) | |
1522 | { | |
1523 | struct ofport_dpif *port; | |
1524 | ||
1525 | bundle->floodable = true; | |
1526 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
9e1fd49b BP |
1527 | if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD |
1528 | || !stp_forward_in_state(port->stp_state)) { | |
7bde8dd8 JP |
1529 | bundle->floodable = false; |
1530 | break; | |
1531 | } | |
1532 | } | |
1533 | } | |
1534 | ||
abe529af BP |
1535 | static void |
1536 | bundle_del_port(struct ofport_dpif *port) | |
1537 | { | |
1538 | struct ofbundle *bundle = port->bundle; | |
1539 | ||
6f77f4ae BP |
1540 | bundle->ofproto->need_revalidate = true; |
1541 | ||
abe529af BP |
1542 | list_remove(&port->bundle_node); |
1543 | port->bundle = NULL; | |
1544 | ||
1545 | if (bundle->lacp) { | |
1546 | lacp_slave_unregister(bundle->lacp, port); | |
1547 | } | |
1548 | if (bundle->bond) { | |
1549 | bond_slave_unregister(bundle->bond, port); | |
1550 | } | |
1551 | ||
7bde8dd8 | 1552 | bundle_update(bundle); |
abe529af BP |
1553 | } |
1554 | ||
1555 | static bool | |
1556 | bundle_add_port(struct ofbundle *bundle, uint32_t ofp_port, | |
00794817 BP |
1557 | struct lacp_slave_settings *lacp, |
1558 | uint32_t bond_stable_id) | |
abe529af BP |
1559 | { |
1560 | struct ofport_dpif *port; | |
1561 | ||
1562 | port = get_ofp_port(bundle->ofproto, ofp_port); | |
1563 | if (!port) { | |
1564 | return false; | |
1565 | } | |
1566 | ||
1567 | if (port->bundle != bundle) { | |
6f77f4ae | 1568 | bundle->ofproto->need_revalidate = true; |
abe529af BP |
1569 | if (port->bundle) { |
1570 | bundle_del_port(port); | |
1571 | } | |
1572 | ||
1573 | port->bundle = bundle; | |
1574 | list_push_back(&bundle->ports, &port->bundle_node); | |
9e1fd49b BP |
1575 | if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD |
1576 | || !stp_forward_in_state(port->stp_state)) { | |
abe529af BP |
1577 | bundle->floodable = false; |
1578 | } | |
1579 | } | |
1580 | if (lacp) { | |
4a86aece | 1581 | port->bundle->ofproto->need_revalidate = true; |
abe529af BP |
1582 | lacp_slave_register(bundle->lacp, port, lacp); |
1583 | } | |
1584 | ||
00794817 BP |
1585 | port->bond_stable_id = bond_stable_id; |
1586 | ||
abe529af BP |
1587 | return true; |
1588 | } | |
1589 | ||
1590 | static void | |
1591 | bundle_destroy(struct ofbundle *bundle) | |
1592 | { | |
1593 | struct ofproto_dpif *ofproto; | |
1594 | struct ofport_dpif *port, *next_port; | |
1595 | int i; | |
1596 | ||
1597 | if (!bundle) { | |
1598 | return; | |
1599 | } | |
1600 | ||
1601 | ofproto = bundle->ofproto; | |
1602 | for (i = 0; i < MAX_MIRRORS; i++) { | |
1603 | struct ofmirror *m = ofproto->mirrors[i]; | |
1604 | if (m) { | |
1605 | if (m->out == bundle) { | |
1606 | mirror_destroy(m); | |
1607 | } else if (hmapx_find_and_delete(&m->srcs, bundle) | |
1608 | || hmapx_find_and_delete(&m->dsts, bundle)) { | |
1609 | ofproto->need_revalidate = true; | |
1610 | } | |
1611 | } | |
1612 | } | |
1613 | ||
1614 | LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) { | |
1615 | bundle_del_port(port); | |
1616 | } | |
1617 | ||
b44a10b7 | 1618 | bundle_flush_macs(bundle, true); |
abe529af BP |
1619 | hmap_remove(&ofproto->bundles, &bundle->hmap_node); |
1620 | free(bundle->name); | |
1621 | free(bundle->trunks); | |
1622 | lacp_destroy(bundle->lacp); | |
1623 | bond_destroy(bundle->bond); | |
1624 | free(bundle); | |
1625 | } | |
1626 | ||
1627 | static int | |
1628 | bundle_set(struct ofproto *ofproto_, void *aux, | |
1629 | const struct ofproto_bundle_settings *s) | |
1630 | { | |
1631 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1632 | bool need_flush = false; | |
abe529af BP |
1633 | struct ofport_dpif *port; |
1634 | struct ofbundle *bundle; | |
ecac4ebf BP |
1635 | unsigned long *trunks; |
1636 | int vlan; | |
abe529af BP |
1637 | size_t i; |
1638 | bool ok; | |
1639 | ||
1640 | if (!s) { | |
1641 | bundle_destroy(bundle_lookup(ofproto, aux)); | |
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | assert(s->n_slaves == 1 || s->bond != NULL); | |
1646 | assert((s->lacp != NULL) == (s->lacp_slaves != NULL)); | |
1647 | ||
1648 | bundle = bundle_lookup(ofproto, aux); | |
1649 | if (!bundle) { | |
1650 | bundle = xmalloc(sizeof *bundle); | |
1651 | ||
1652 | bundle->ofproto = ofproto; | |
1653 | hmap_insert(&ofproto->bundles, &bundle->hmap_node, | |
1654 | hash_pointer(aux, 0)); | |
1655 | bundle->aux = aux; | |
1656 | bundle->name = NULL; | |
1657 | ||
1658 | list_init(&bundle->ports); | |
ecac4ebf | 1659 | bundle->vlan_mode = PORT_VLAN_TRUNK; |
abe529af BP |
1660 | bundle->vlan = -1; |
1661 | bundle->trunks = NULL; | |
5e9ceccd | 1662 | bundle->use_priority_tags = s->use_priority_tags; |
abe529af BP |
1663 | bundle->lacp = NULL; |
1664 | bundle->bond = NULL; | |
1665 | ||
1666 | bundle->floodable = true; | |
1667 | ||
1668 | bundle->src_mirrors = 0; | |
1669 | bundle->dst_mirrors = 0; | |
1670 | bundle->mirror_out = 0; | |
1671 | } | |
1672 | ||
1673 | if (!bundle->name || strcmp(s->name, bundle->name)) { | |
1674 | free(bundle->name); | |
1675 | bundle->name = xstrdup(s->name); | |
1676 | } | |
1677 | ||
1678 | /* LACP. */ | |
1679 | if (s->lacp) { | |
1680 | if (!bundle->lacp) { | |
8c977421 | 1681 | ofproto->need_revalidate = true; |
abe529af BP |
1682 | bundle->lacp = lacp_create(); |
1683 | } | |
1684 | lacp_configure(bundle->lacp, s->lacp); | |
1685 | } else { | |
1686 | lacp_destroy(bundle->lacp); | |
1687 | bundle->lacp = NULL; | |
1688 | } | |
1689 | ||
1690 | /* Update set of ports. */ | |
1691 | ok = true; | |
1692 | for (i = 0; i < s->n_slaves; i++) { | |
1693 | if (!bundle_add_port(bundle, s->slaves[i], | |
00794817 BP |
1694 | s->lacp ? &s->lacp_slaves[i] : NULL, |
1695 | s->bond_stable_ids ? s->bond_stable_ids[i] : 0)) { | |
abe529af BP |
1696 | ok = false; |
1697 | } | |
1698 | } | |
1699 | if (!ok || list_size(&bundle->ports) != s->n_slaves) { | |
1700 | struct ofport_dpif *next_port; | |
1701 | ||
1702 | LIST_FOR_EACH_SAFE (port, next_port, bundle_node, &bundle->ports) { | |
1703 | for (i = 0; i < s->n_slaves; i++) { | |
56c769ab | 1704 | if (s->slaves[i] == port->up.ofp_port) { |
abe529af BP |
1705 | goto found; |
1706 | } | |
1707 | } | |
1708 | ||
1709 | bundle_del_port(port); | |
1710 | found: ; | |
1711 | } | |
1712 | } | |
1713 | assert(list_size(&bundle->ports) <= s->n_slaves); | |
1714 | ||
1715 | if (list_is_empty(&bundle->ports)) { | |
1716 | bundle_destroy(bundle); | |
1717 | return EINVAL; | |
1718 | } | |
1719 | ||
ecac4ebf | 1720 | /* Set VLAN tagging mode */ |
5e9ceccd BP |
1721 | if (s->vlan_mode != bundle->vlan_mode |
1722 | || s->use_priority_tags != bundle->use_priority_tags) { | |
ecac4ebf | 1723 | bundle->vlan_mode = s->vlan_mode; |
5e9ceccd | 1724 | bundle->use_priority_tags = s->use_priority_tags; |
ecac4ebf BP |
1725 | need_flush = true; |
1726 | } | |
1727 | ||
abe529af | 1728 | /* Set VLAN tag. */ |
ecac4ebf BP |
1729 | vlan = (s->vlan_mode == PORT_VLAN_TRUNK ? -1 |
1730 | : s->vlan >= 0 && s->vlan <= 4095 ? s->vlan | |
1731 | : 0); | |
1732 | if (vlan != bundle->vlan) { | |
1733 | bundle->vlan = vlan; | |
abe529af BP |
1734 | need_flush = true; |
1735 | } | |
1736 | ||
1737 | /* Get trunked VLANs. */ | |
ecac4ebf BP |
1738 | switch (s->vlan_mode) { |
1739 | case PORT_VLAN_ACCESS: | |
1740 | trunks = NULL; | |
1741 | break; | |
1742 | ||
1743 | case PORT_VLAN_TRUNK: | |
1744 | trunks = (unsigned long *) s->trunks; | |
1745 | break; | |
1746 | ||
1747 | case PORT_VLAN_NATIVE_UNTAGGED: | |
1748 | case PORT_VLAN_NATIVE_TAGGED: | |
1749 | if (vlan != 0 && (!s->trunks | |
1750 | || !bitmap_is_set(s->trunks, vlan) | |
1751 | || bitmap_is_set(s->trunks, 0))) { | |
1752 | /* Force trunking the native VLAN and prohibit trunking VLAN 0. */ | |
1753 | if (s->trunks) { | |
1754 | trunks = bitmap_clone(s->trunks, 4096); | |
1755 | } else { | |
1756 | trunks = bitmap_allocate1(4096); | |
1757 | } | |
1758 | bitmap_set1(trunks, vlan); | |
1759 | bitmap_set0(trunks, 0); | |
1760 | } else { | |
1761 | trunks = (unsigned long *) s->trunks; | |
1762 | } | |
1763 | break; | |
1764 | ||
1765 | default: | |
1766 | NOT_REACHED(); | |
1767 | } | |
abe529af BP |
1768 | if (!vlan_bitmap_equal(trunks, bundle->trunks)) { |
1769 | free(bundle->trunks); | |
ecac4ebf BP |
1770 | if (trunks == s->trunks) { |
1771 | bundle->trunks = vlan_bitmap_clone(trunks); | |
1772 | } else { | |
1773 | bundle->trunks = trunks; | |
1774 | trunks = NULL; | |
1775 | } | |
abe529af BP |
1776 | need_flush = true; |
1777 | } | |
ecac4ebf BP |
1778 | if (trunks != s->trunks) { |
1779 | free(trunks); | |
1780 | } | |
abe529af BP |
1781 | |
1782 | /* Bonding. */ | |
1783 | if (!list_is_short(&bundle->ports)) { | |
1784 | bundle->ofproto->has_bonded_bundles = true; | |
1785 | if (bundle->bond) { | |
1786 | if (bond_reconfigure(bundle->bond, s->bond)) { | |
1787 | ofproto->need_revalidate = true; | |
1788 | } | |
1789 | } else { | |
1790 | bundle->bond = bond_create(s->bond); | |
6f77f4ae | 1791 | ofproto->need_revalidate = true; |
abe529af BP |
1792 | } |
1793 | ||
1794 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
00794817 | 1795 | bond_slave_register(bundle->bond, port, port->bond_stable_id, |
abe529af BP |
1796 | port->up.netdev); |
1797 | } | |
1798 | } else { | |
1799 | bond_destroy(bundle->bond); | |
1800 | bundle->bond = NULL; | |
1801 | } | |
1802 | ||
1803 | /* If we changed something that would affect MAC learning, un-learn | |
1804 | * everything on this port and force flow revalidation. */ | |
1805 | if (need_flush) { | |
b44a10b7 | 1806 | bundle_flush_macs(bundle, false); |
abe529af BP |
1807 | } |
1808 | ||
1809 | return 0; | |
1810 | } | |
1811 | ||
1812 | static void | |
1813 | bundle_remove(struct ofport *port_) | |
1814 | { | |
1815 | struct ofport_dpif *port = ofport_dpif_cast(port_); | |
1816 | struct ofbundle *bundle = port->bundle; | |
1817 | ||
1818 | if (bundle) { | |
1819 | bundle_del_port(port); | |
1820 | if (list_is_empty(&bundle->ports)) { | |
1821 | bundle_destroy(bundle); | |
1822 | } else if (list_is_short(&bundle->ports)) { | |
1823 | bond_destroy(bundle->bond); | |
1824 | bundle->bond = NULL; | |
1825 | } | |
1826 | } | |
1827 | } | |
1828 | ||
1829 | static void | |
5f877369 | 1830 | send_pdu_cb(void *port_, const void *pdu, size_t pdu_size) |
abe529af BP |
1831 | { |
1832 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10); | |
1833 | struct ofport_dpif *port = port_; | |
1834 | uint8_t ea[ETH_ADDR_LEN]; | |
1835 | int error; | |
1836 | ||
1837 | error = netdev_get_etheraddr(port->up.netdev, ea); | |
1838 | if (!error) { | |
abe529af | 1839 | struct ofpbuf packet; |
5f877369 | 1840 | void *packet_pdu; |
abe529af BP |
1841 | |
1842 | ofpbuf_init(&packet, 0); | |
1843 | packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP, | |
5f877369 EJ |
1844 | pdu_size); |
1845 | memcpy(packet_pdu, pdu, pdu_size); | |
1846 | ||
97d6520b | 1847 | send_packet(port, &packet); |
abe529af BP |
1848 | ofpbuf_uninit(&packet); |
1849 | } else { | |
1850 | VLOG_ERR_RL(&rl, "port %s: cannot obtain Ethernet address of iface " | |
1851 | "%s (%s)", port->bundle->name, | |
1852 | netdev_get_name(port->up.netdev), strerror(error)); | |
1853 | } | |
1854 | } | |
1855 | ||
1856 | static void | |
1857 | bundle_send_learning_packets(struct ofbundle *bundle) | |
1858 | { | |
1859 | struct ofproto_dpif *ofproto = bundle->ofproto; | |
1860 | int error, n_packets, n_errors; | |
1861 | struct mac_entry *e; | |
1862 | ||
1863 | error = n_packets = n_errors = 0; | |
1864 | LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) { | |
1865 | if (e->port.p != bundle) { | |
ea131871 JG |
1866 | struct ofpbuf *learning_packet; |
1867 | struct ofport_dpif *port; | |
4dd1e3ca | 1868 | void *port_void; |
ea131871 JG |
1869 | int ret; |
1870 | ||
4dd1e3ca BP |
1871 | /* The assignment to "port" is unnecessary but makes "grep"ing for |
1872 | * struct ofport_dpif more effective. */ | |
1873 | learning_packet = bond_compose_learning_packet(bundle->bond, | |
1874 | e->mac, e->vlan, | |
1875 | &port_void); | |
1876 | port = port_void; | |
97d6520b | 1877 | ret = send_packet(port, learning_packet); |
ea131871 | 1878 | ofpbuf_delete(learning_packet); |
abe529af BP |
1879 | if (ret) { |
1880 | error = ret; | |
1881 | n_errors++; | |
1882 | } | |
1883 | n_packets++; | |
1884 | } | |
1885 | } | |
1886 | ||
1887 | if (n_errors) { | |
1888 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
1889 | VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning " | |
1890 | "packets, last error was: %s", | |
1891 | bundle->name, n_errors, n_packets, strerror(error)); | |
1892 | } else { | |
1893 | VLOG_DBG("bond %s: sent %d gratuitous learning packets", | |
1894 | bundle->name, n_packets); | |
1895 | } | |
1896 | } | |
1897 | ||
1898 | static void | |
1899 | bundle_run(struct ofbundle *bundle) | |
1900 | { | |
1901 | if (bundle->lacp) { | |
1902 | lacp_run(bundle->lacp, send_pdu_cb); | |
1903 | } | |
1904 | if (bundle->bond) { | |
1905 | struct ofport_dpif *port; | |
1906 | ||
1907 | LIST_FOR_EACH (port, bundle_node, &bundle->ports) { | |
015e08bc | 1908 | bond_slave_set_may_enable(bundle->bond, port, port->may_enable); |
abe529af BP |
1909 | } |
1910 | ||
1911 | bond_run(bundle->bond, &bundle->ofproto->revalidate_set, | |
bdebeece | 1912 | lacp_status(bundle->lacp)); |
abe529af BP |
1913 | if (bond_should_send_learning_packets(bundle->bond)) { |
1914 | bundle_send_learning_packets(bundle); | |
1915 | } | |
1916 | } | |
1917 | } | |
1918 | ||
1919 | static void | |
1920 | bundle_wait(struct ofbundle *bundle) | |
1921 | { | |
1922 | if (bundle->lacp) { | |
1923 | lacp_wait(bundle->lacp); | |
1924 | } | |
1925 | if (bundle->bond) { | |
1926 | bond_wait(bundle->bond); | |
1927 | } | |
1928 | } | |
1929 | \f | |
1930 | /* Mirrors. */ | |
1931 | ||
1932 | static int | |
1933 | mirror_scan(struct ofproto_dpif *ofproto) | |
1934 | { | |
1935 | int idx; | |
1936 | ||
1937 | for (idx = 0; idx < MAX_MIRRORS; idx++) { | |
1938 | if (!ofproto->mirrors[idx]) { | |
1939 | return idx; | |
1940 | } | |
1941 | } | |
1942 | return -1; | |
1943 | } | |
1944 | ||
1945 | static struct ofmirror * | |
1946 | mirror_lookup(struct ofproto_dpif *ofproto, void *aux) | |
1947 | { | |
1948 | int i; | |
1949 | ||
1950 | for (i = 0; i < MAX_MIRRORS; i++) { | |
1951 | struct ofmirror *mirror = ofproto->mirrors[i]; | |
1952 | if (mirror && mirror->aux == aux) { | |
1953 | return mirror; | |
1954 | } | |
1955 | } | |
1956 | ||
1957 | return NULL; | |
1958 | } | |
1959 | ||
9ba15e2a BP |
1960 | /* Update the 'dup_mirrors' member of each of the ofmirrors in 'ofproto'. */ |
1961 | static void | |
1962 | mirror_update_dups(struct ofproto_dpif *ofproto) | |
1963 | { | |
1964 | int i; | |
1965 | ||
1966 | for (i = 0; i < MAX_MIRRORS; i++) { | |
1967 | struct ofmirror *m = ofproto->mirrors[i]; | |
1968 | ||
1969 | if (m) { | |
1970 | m->dup_mirrors = MIRROR_MASK_C(1) << i; | |
1971 | } | |
1972 | } | |
1973 | ||
1974 | for (i = 0; i < MAX_MIRRORS; i++) { | |
1975 | struct ofmirror *m1 = ofproto->mirrors[i]; | |
1976 | int j; | |
1977 | ||
1978 | if (!m1) { | |
1979 | continue; | |
1980 | } | |
1981 | ||
1982 | for (j = i + 1; j < MAX_MIRRORS; j++) { | |
1983 | struct ofmirror *m2 = ofproto->mirrors[j]; | |
1984 | ||
edb0540b | 1985 | if (m2 && m1->out == m2->out && m1->out_vlan == m2->out_vlan) { |
9ba15e2a BP |
1986 | m1->dup_mirrors |= MIRROR_MASK_C(1) << j; |
1987 | m2->dup_mirrors |= m1->dup_mirrors; | |
1988 | } | |
1989 | } | |
1990 | } | |
1991 | } | |
1992 | ||
abe529af BP |
1993 | static int |
1994 | mirror_set(struct ofproto *ofproto_, void *aux, | |
1995 | const struct ofproto_mirror_settings *s) | |
1996 | { | |
1997 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
1998 | mirror_mask_t mirror_bit; | |
1999 | struct ofbundle *bundle; | |
2000 | struct ofmirror *mirror; | |
2001 | struct ofbundle *out; | |
2002 | struct hmapx srcs; /* Contains "struct ofbundle *"s. */ | |
2003 | struct hmapx dsts; /* Contains "struct ofbundle *"s. */ | |
2004 | int out_vlan; | |
2005 | ||
2006 | mirror = mirror_lookup(ofproto, aux); | |
2007 | if (!s) { | |
2008 | mirror_destroy(mirror); | |
2009 | return 0; | |
2010 | } | |
2011 | if (!mirror) { | |
2012 | int idx; | |
2013 | ||
2014 | idx = mirror_scan(ofproto); | |
2015 | if (idx < 0) { | |
2016 | VLOG_WARN("bridge %s: maximum of %d port mirrors reached, " | |
2017 | "cannot create %s", | |
2018 | ofproto->up.name, MAX_MIRRORS, s->name); | |
2019 | return EFBIG; | |
2020 | } | |
2021 | ||
2022 | mirror = ofproto->mirrors[idx] = xzalloc(sizeof *mirror); | |
2023 | mirror->ofproto = ofproto; | |
2024 | mirror->idx = idx; | |
8b28d864 | 2025 | mirror->aux = aux; |
abe529af BP |
2026 | mirror->out_vlan = -1; |
2027 | mirror->name = NULL; | |
2028 | } | |
2029 | ||
2030 | if (!mirror->name || strcmp(s->name, mirror->name)) { | |
2031 | free(mirror->name); | |
2032 | mirror->name = xstrdup(s->name); | |
2033 | } | |
2034 | ||
2035 | /* Get the new configuration. */ | |
2036 | if (s->out_bundle) { | |
2037 | out = bundle_lookup(ofproto, s->out_bundle); | |
2038 | if (!out) { | |
2039 | mirror_destroy(mirror); | |
2040 | return EINVAL; | |
2041 | } | |
2042 | out_vlan = -1; | |
2043 | } else { | |
2044 | out = NULL; | |
2045 | out_vlan = s->out_vlan; | |
2046 | } | |
2047 | bundle_lookup_multiple(ofproto, s->srcs, s->n_srcs, &srcs); | |
2048 | bundle_lookup_multiple(ofproto, s->dsts, s->n_dsts, &dsts); | |
2049 | ||
2050 | /* If the configuration has not changed, do nothing. */ | |
2051 | if (hmapx_equals(&srcs, &mirror->srcs) | |
2052 | && hmapx_equals(&dsts, &mirror->dsts) | |
2053 | && vlan_bitmap_equal(mirror->vlans, s->src_vlans) | |
2054 | && mirror->out == out | |
2055 | && mirror->out_vlan == out_vlan) | |
2056 | { | |
2057 | hmapx_destroy(&srcs); | |
2058 | hmapx_destroy(&dsts); | |
2059 | return 0; | |
2060 | } | |
2061 | ||
2062 | hmapx_swap(&srcs, &mirror->srcs); | |
2063 | hmapx_destroy(&srcs); | |
2064 | ||
2065 | hmapx_swap(&dsts, &mirror->dsts); | |
2066 | hmapx_destroy(&dsts); | |
2067 | ||
2068 | free(mirror->vlans); | |
2069 | mirror->vlans = vlan_bitmap_clone(s->src_vlans); | |
2070 | ||
2071 | mirror->out = out; | |
2072 | mirror->out_vlan = out_vlan; | |
2073 | ||
2074 | /* Update bundles. */ | |
2075 | mirror_bit = MIRROR_MASK_C(1) << mirror->idx; | |
2076 | HMAP_FOR_EACH (bundle, hmap_node, &mirror->ofproto->bundles) { | |
2077 | if (hmapx_contains(&mirror->srcs, bundle)) { | |
2078 | bundle->src_mirrors |= mirror_bit; | |
2079 | } else { | |
2080 | bundle->src_mirrors &= ~mirror_bit; | |
2081 | } | |
2082 | ||
2083 | if (hmapx_contains(&mirror->dsts, bundle)) { | |
2084 | bundle->dst_mirrors |= mirror_bit; | |
2085 | } else { | |
2086 | bundle->dst_mirrors &= ~mirror_bit; | |
2087 | } | |
2088 | ||
2089 | if (mirror->out == bundle) { | |
2090 | bundle->mirror_out |= mirror_bit; | |
2091 | } else { | |
2092 | bundle->mirror_out &= ~mirror_bit; | |
2093 | } | |
2094 | } | |
2095 | ||
2096 | ofproto->need_revalidate = true; | |
d0040604 | 2097 | mac_learning_flush(ofproto->ml, &ofproto->revalidate_set); |
9ba15e2a | 2098 | mirror_update_dups(ofproto); |
abe529af BP |
2099 | |
2100 | return 0; | |
2101 | } | |
2102 | ||
2103 | static void | |
2104 | mirror_destroy(struct ofmirror *mirror) | |
2105 | { | |
2106 | struct ofproto_dpif *ofproto; | |
2107 | mirror_mask_t mirror_bit; | |
2108 | struct ofbundle *bundle; | |
2109 | ||
2110 | if (!mirror) { | |
2111 | return; | |
2112 | } | |
2113 | ||
2114 | ofproto = mirror->ofproto; | |
2115 | ofproto->need_revalidate = true; | |
d0040604 | 2116 | mac_learning_flush(ofproto->ml, &ofproto->revalidate_set); |
abe529af BP |
2117 | |
2118 | mirror_bit = MIRROR_MASK_C(1) << mirror->idx; | |
2119 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
2120 | bundle->src_mirrors &= ~mirror_bit; | |
2121 | bundle->dst_mirrors &= ~mirror_bit; | |
2122 | bundle->mirror_out &= ~mirror_bit; | |
2123 | } | |
2124 | ||
2125 | hmapx_destroy(&mirror->srcs); | |
2126 | hmapx_destroy(&mirror->dsts); | |
2127 | free(mirror->vlans); | |
2128 | ||
2129 | ofproto->mirrors[mirror->idx] = NULL; | |
2130 | free(mirror->name); | |
2131 | free(mirror); | |
9ba15e2a BP |
2132 | |
2133 | mirror_update_dups(ofproto); | |
abe529af BP |
2134 | } |
2135 | ||
9d24de3b JP |
2136 | static int |
2137 | mirror_get_stats(struct ofproto *ofproto_, void *aux, | |
2138 | uint64_t *packets, uint64_t *bytes) | |
2139 | { | |
2140 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2141 | struct ofmirror *mirror = mirror_lookup(ofproto, aux); | |
2142 | ||
2143 | if (!mirror) { | |
2144 | *packets = *bytes = UINT64_MAX; | |
2145 | return 0; | |
2146 | } | |
2147 | ||
2148 | *packets = mirror->packet_count; | |
2149 | *bytes = mirror->byte_count; | |
2150 | ||
2151 | return 0; | |
2152 | } | |
2153 | ||
abe529af BP |
2154 | static int |
2155 | set_flood_vlans(struct ofproto *ofproto_, unsigned long *flood_vlans) | |
2156 | { | |
2157 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2158 | if (mac_learning_set_flood_vlans(ofproto->ml, flood_vlans)) { | |
d0040604 | 2159 | mac_learning_flush(ofproto->ml, &ofproto->revalidate_set); |
abe529af BP |
2160 | } |
2161 | return 0; | |
2162 | } | |
2163 | ||
2164 | static bool | |
b4affc74 | 2165 | is_mirror_output_bundle(const struct ofproto *ofproto_, void *aux) |
abe529af BP |
2166 | { |
2167 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2168 | struct ofbundle *bundle = bundle_lookup(ofproto, aux); | |
2169 | return bundle && bundle->mirror_out != 0; | |
2170 | } | |
8402c74b SS |
2171 | |
2172 | static void | |
b53055f4 | 2173 | forward_bpdu_changed(struct ofproto *ofproto_) |
8402c74b SS |
2174 | { |
2175 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2176 | /* Revalidate cached flows whenever forward_bpdu option changes. */ | |
2177 | ofproto->need_revalidate = true; | |
2178 | } | |
e764773c BP |
2179 | |
2180 | static void | |
2181 | set_mac_idle_time(struct ofproto *ofproto_, unsigned int idle_time) | |
2182 | { | |
2183 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2184 | mac_learning_set_idle_time(ofproto->ml, idle_time); | |
2185 | } | |
abe529af BP |
2186 | \f |
2187 | /* Ports. */ | |
2188 | ||
2189 | static struct ofport_dpif * | |
2190 | get_ofp_port(struct ofproto_dpif *ofproto, uint16_t ofp_port) | |
2191 | { | |
7df6a8bd BP |
2192 | struct ofport *ofport = ofproto_get_port(&ofproto->up, ofp_port); |
2193 | return ofport ? ofport_dpif_cast(ofport) : NULL; | |
abe529af BP |
2194 | } |
2195 | ||
2196 | static struct ofport_dpif * | |
2197 | get_odp_port(struct ofproto_dpif *ofproto, uint32_t odp_port) | |
2198 | { | |
2199 | return get_ofp_port(ofproto, odp_port_to_ofp_port(odp_port)); | |
2200 | } | |
2201 | ||
2202 | static void | |
2203 | ofproto_port_from_dpif_port(struct ofproto_port *ofproto_port, | |
2204 | struct dpif_port *dpif_port) | |
2205 | { | |
2206 | ofproto_port->name = dpif_port->name; | |
2207 | ofproto_port->type = dpif_port->type; | |
2208 | ofproto_port->ofp_port = odp_port_to_ofp_port(dpif_port->port_no); | |
2209 | } | |
2210 | ||
2211 | static void | |
2212 | port_run(struct ofport_dpif *ofport) | |
2213 | { | |
3e5b3fdb EJ |
2214 | long long int carrier_seq = netdev_get_carrier_resets(ofport->up.netdev); |
2215 | bool carrier_changed = carrier_seq != ofport->carrier_seq; | |
015e08bc EJ |
2216 | bool enable = netdev_get_carrier(ofport->up.netdev); |
2217 | ||
3e5b3fdb EJ |
2218 | ofport->carrier_seq = carrier_seq; |
2219 | ||
abe529af BP |
2220 | if (ofport->cfm) { |
2221 | cfm_run(ofport->cfm); | |
2222 | ||
2223 | if (cfm_should_send_ccm(ofport->cfm)) { | |
2224 | struct ofpbuf packet; | |
abe529af BP |
2225 | |
2226 | ofpbuf_init(&packet, 0); | |
9e1fd49b | 2227 | cfm_compose_ccm(ofport->cfm, &packet, ofport->up.pp.hw_addr); |
97d6520b | 2228 | send_packet(ofport, &packet); |
abe529af BP |
2229 | ofpbuf_uninit(&packet); |
2230 | } | |
015e08bc | 2231 | |
86dc6501 EJ |
2232 | enable = enable && !cfm_get_fault(ofport->cfm) |
2233 | && cfm_get_opup(ofport->cfm); | |
abe529af | 2234 | } |
015e08bc EJ |
2235 | |
2236 | if (ofport->bundle) { | |
2237 | enable = enable && lacp_slave_may_enable(ofport->bundle->lacp, ofport); | |
3e5b3fdb EJ |
2238 | if (carrier_changed) { |
2239 | lacp_slave_carrier_changed(ofport->bundle->lacp, ofport); | |
2240 | } | |
015e08bc EJ |
2241 | } |
2242 | ||
daff3353 EJ |
2243 | if (ofport->may_enable != enable) { |
2244 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2245 | ||
2246 | if (ofproto->has_bundle_action) { | |
2247 | ofproto->need_revalidate = true; | |
2248 | } | |
2249 | } | |
2250 | ||
015e08bc | 2251 | ofport->may_enable = enable; |
abe529af BP |
2252 | } |
2253 | ||
2254 | static void | |
2255 | port_wait(struct ofport_dpif *ofport) | |
2256 | { | |
2257 | if (ofport->cfm) { | |
2258 | cfm_wait(ofport->cfm); | |
2259 | } | |
2260 | } | |
2261 | ||
2262 | static int | |
2263 | port_query_by_name(const struct ofproto *ofproto_, const char *devname, | |
2264 | struct ofproto_port *ofproto_port) | |
2265 | { | |
2266 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2267 | struct dpif_port dpif_port; | |
2268 | int error; | |
2269 | ||
2270 | error = dpif_port_query_by_name(ofproto->dpif, devname, &dpif_port); | |
2271 | if (!error) { | |
2272 | ofproto_port_from_dpif_port(ofproto_port, &dpif_port); | |
2273 | } | |
2274 | return error; | |
2275 | } | |
2276 | ||
2277 | static int | |
2278 | port_add(struct ofproto *ofproto_, struct netdev *netdev, uint16_t *ofp_portp) | |
2279 | { | |
2280 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2281 | uint16_t odp_port; | |
2282 | int error; | |
2283 | ||
2284 | error = dpif_port_add(ofproto->dpif, netdev, &odp_port); | |
2285 | if (!error) { | |
2286 | *ofp_portp = odp_port_to_ofp_port(odp_port); | |
2287 | } | |
2288 | return error; | |
2289 | } | |
2290 | ||
2291 | static int | |
2292 | port_del(struct ofproto *ofproto_, uint16_t ofp_port) | |
2293 | { | |
2294 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2295 | int error; | |
2296 | ||
2297 | error = dpif_port_del(ofproto->dpif, ofp_port_to_odp_port(ofp_port)); | |
2298 | if (!error) { | |
2299 | struct ofport_dpif *ofport = get_ofp_port(ofproto, ofp_port); | |
2300 | if (ofport) { | |
2301 | /* The caller is going to close ofport->up.netdev. If this is a | |
2302 | * bonded port, then the bond is using that netdev, so remove it | |
2303 | * from the bond. The client will need to reconfigure everything | |
2304 | * after deleting ports, so then the slave will get re-added. */ | |
2305 | bundle_remove(&ofport->up); | |
2306 | } | |
2307 | } | |
2308 | return error; | |
2309 | } | |
2310 | ||
6527c598 PS |
2311 | static int |
2312 | port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats) | |
2313 | { | |
2314 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2315 | int error; | |
2316 | ||
2317 | error = netdev_get_stats(ofport->up.netdev, stats); | |
2318 | ||
2319 | if (!error && ofport->odp_port == OVSP_LOCAL) { | |
2320 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); | |
2321 | ||
2322 | /* ofproto->stats.tx_packets represents packets that we created | |
2323 | * internally and sent to some port (e.g. packets sent with | |
2324 | * send_packet()). Account for them as if they had come from | |
2325 | * OFPP_LOCAL and got forwarded. */ | |
2326 | ||
2327 | if (stats->rx_packets != UINT64_MAX) { | |
2328 | stats->rx_packets += ofproto->stats.tx_packets; | |
2329 | } | |
2330 | ||
2331 | if (stats->rx_bytes != UINT64_MAX) { | |
2332 | stats->rx_bytes += ofproto->stats.tx_bytes; | |
2333 | } | |
2334 | ||
2335 | /* ofproto->stats.rx_packets represents packets that were received on | |
2336 | * some port and we processed internally and dropped (e.g. STP). | |
2337 | * Account fro them as if they had been forwarded to OFPP_LOCAL. */ | |
2338 | ||
2339 | if (stats->tx_packets != UINT64_MAX) { | |
2340 | stats->tx_packets += ofproto->stats.rx_packets; | |
2341 | } | |
2342 | ||
2343 | if (stats->tx_bytes != UINT64_MAX) { | |
2344 | stats->tx_bytes += ofproto->stats.rx_bytes; | |
2345 | } | |
2346 | } | |
2347 | ||
2348 | return error; | |
2349 | } | |
2350 | ||
2351 | /* Account packets for LOCAL port. */ | |
2352 | static void | |
2353 | ofproto_update_local_port_stats(const struct ofproto *ofproto_, | |
2354 | size_t tx_size, size_t rx_size) | |
2355 | { | |
2356 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2357 | ||
2358 | if (rx_size) { | |
2359 | ofproto->stats.rx_packets++; | |
2360 | ofproto->stats.rx_bytes += rx_size; | |
2361 | } | |
2362 | if (tx_size) { | |
2363 | ofproto->stats.tx_packets++; | |
2364 | ofproto->stats.tx_bytes += tx_size; | |
2365 | } | |
2366 | } | |
2367 | ||
abe529af BP |
2368 | struct port_dump_state { |
2369 | struct dpif_port_dump dump; | |
2370 | bool done; | |
2371 | }; | |
2372 | ||
2373 | static int | |
2374 | port_dump_start(const struct ofproto *ofproto_, void **statep) | |
2375 | { | |
2376 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2377 | struct port_dump_state *state; | |
2378 | ||
2379 | *statep = state = xmalloc(sizeof *state); | |
2380 | dpif_port_dump_start(&state->dump, ofproto->dpif); | |
2381 | state->done = false; | |
2382 | return 0; | |
2383 | } | |
2384 | ||
2385 | static int | |
2386 | port_dump_next(const struct ofproto *ofproto_ OVS_UNUSED, void *state_, | |
2387 | struct ofproto_port *port) | |
2388 | { | |
2389 | struct port_dump_state *state = state_; | |
2390 | struct dpif_port dpif_port; | |
2391 | ||
2392 | if (dpif_port_dump_next(&state->dump, &dpif_port)) { | |
2393 | ofproto_port_from_dpif_port(port, &dpif_port); | |
2394 | return 0; | |
2395 | } else { | |
2396 | int error = dpif_port_dump_done(&state->dump); | |
2397 | state->done = true; | |
2398 | return error ? error : EOF; | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | static int | |
2403 | port_dump_done(const struct ofproto *ofproto_ OVS_UNUSED, void *state_) | |
2404 | { | |
2405 | struct port_dump_state *state = state_; | |
2406 | ||
2407 | if (!state->done) { | |
2408 | dpif_port_dump_done(&state->dump); | |
2409 | } | |
2410 | free(state); | |
2411 | return 0; | |
2412 | } | |
2413 | ||
2414 | static int | |
2415 | port_poll(const struct ofproto *ofproto_, char **devnamep) | |
2416 | { | |
2417 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2418 | return dpif_port_poll(ofproto->dpif, devnamep); | |
2419 | } | |
2420 | ||
2421 | static void | |
2422 | port_poll_wait(const struct ofproto *ofproto_) | |
2423 | { | |
2424 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
2425 | dpif_port_poll_wait(ofproto->dpif); | |
2426 | } | |
2427 | ||
2428 | static int | |
2429 | port_is_lacp_current(const struct ofport *ofport_) | |
2430 | { | |
2431 | const struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
2432 | return (ofport->bundle && ofport->bundle->lacp | |
2433 | ? lacp_slave_is_current(ofport->bundle->lacp, ofport) | |
2434 | : -1); | |
2435 | } | |
2436 | \f | |
2437 | /* Upcall handling. */ | |
2438 | ||
501f8d1f BP |
2439 | /* Flow miss batching. |
2440 | * | |
2441 | * Some dpifs implement operations faster when you hand them off in a batch. | |
2442 | * To allow batching, "struct flow_miss" queues the dpif-related work needed | |
2443 | * for a given flow. Each "struct flow_miss" corresponds to sending one or | |
2444 | * more packets, plus possibly installing the flow in the dpif. | |
2445 | * | |
2446 | * So far we only batch the operations that affect flow setup time the most. | |
2447 | * It's possible to batch more than that, but the benefit might be minimal. */ | |
2448 | struct flow_miss { | |
2449 | struct hmap_node hmap_node; | |
2450 | struct flow flow; | |
b0f7b9b5 | 2451 | enum odp_key_fitness key_fitness; |
501f8d1f BP |
2452 | const struct nlattr *key; |
2453 | size_t key_len; | |
e84173dc | 2454 | ovs_be16 initial_tci; |
501f8d1f BP |
2455 | struct list packets; |
2456 | }; | |
2457 | ||
2458 | struct flow_miss_op { | |
c2b565b5 | 2459 | struct dpif_op dpif_op; |
b0f7b9b5 | 2460 | struct subfacet *subfacet; |
501f8d1f BP |
2461 | }; |
2462 | ||
62cd7072 BP |
2463 | /* Sends an OFPT_PACKET_IN message for 'packet' of type OFPR_NO_MATCH to each |
2464 | * OpenFlow controller as necessary according to their individual | |
29ebe880 | 2465 | * configurations. */ |
62cd7072 | 2466 | static void |
a39edbd4 | 2467 | send_packet_in_miss(struct ofproto_dpif *ofproto, const struct ofpbuf *packet, |
29ebe880 | 2468 | const struct flow *flow) |
62cd7072 BP |
2469 | { |
2470 | struct ofputil_packet_in pin; | |
2471 | ||
3e3252fa EJ |
2472 | pin.packet = packet->data; |
2473 | pin.packet_len = packet->size; | |
62cd7072 | 2474 | pin.reason = OFPR_NO_MATCH; |
a7349929 | 2475 | pin.controller_id = 0; |
54834960 EJ |
2476 | |
2477 | pin.table_id = 0; | |
2478 | pin.cookie = 0; | |
2479 | ||
62cd7072 | 2480 | pin.send_len = 0; /* not used for flow table misses */ |
5d6c3af0 EJ |
2481 | |
2482 | flow_get_metadata(flow, &pin.fmd); | |
2483 | ||
2484 | /* Registers aren't meaningful on a miss. */ | |
2485 | memset(pin.fmd.reg_masks, 0, sizeof pin.fmd.reg_masks); | |
2486 | ||
d8653c38 | 2487 | connmgr_send_packet_in(ofproto->up.connmgr, &pin); |
62cd7072 BP |
2488 | } |
2489 | ||
abe529af BP |
2490 | static bool |
2491 | process_special(struct ofproto_dpif *ofproto, const struct flow *flow, | |
2492 | const struct ofpbuf *packet) | |
2493 | { | |
b6e001b6 EJ |
2494 | struct ofport_dpif *ofport = get_ofp_port(ofproto, flow->in_port); |
2495 | ||
2496 | if (!ofport) { | |
2497 | return false; | |
2498 | } | |
2499 | ||
ef9819b5 | 2500 | if (ofport->cfm && cfm_should_process_flow(ofport->cfm, flow)) { |
b6e001b6 | 2501 | if (packet) { |
abe529af BP |
2502 | cfm_process_heartbeat(ofport->cfm, packet); |
2503 | } | |
2504 | return true; | |
b6e001b6 EJ |
2505 | } else if (ofport->bundle && ofport->bundle->lacp |
2506 | && flow->dl_type == htons(ETH_TYPE_LACP)) { | |
2507 | if (packet) { | |
2508 | lacp_process_packet(ofport->bundle->lacp, ofport, packet); | |
abe529af | 2509 | } |
da37ebac | 2510 | return true; |
21f7563c JP |
2511 | } else if (ofproto->stp && stp_should_process_flow(flow)) { |
2512 | if (packet) { | |
2513 | stp_process_packet(ofport, packet); | |
2514 | } | |
2515 | return true; | |
abe529af BP |
2516 | } |
2517 | return false; | |
2518 | } | |
2519 | ||
501f8d1f BP |
2520 | static struct flow_miss * |
2521 | flow_miss_create(struct hmap *todo, const struct flow *flow, | |
b0f7b9b5 | 2522 | enum odp_key_fitness key_fitness, |
e84173dc BP |
2523 | const struct nlattr *key, size_t key_len, |
2524 | ovs_be16 initial_tci) | |
abe529af | 2525 | { |
501f8d1f BP |
2526 | uint32_t hash = flow_hash(flow, 0); |
2527 | struct flow_miss *miss; | |
abe529af | 2528 | |
501f8d1f BP |
2529 | HMAP_FOR_EACH_WITH_HASH (miss, hmap_node, hash, todo) { |
2530 | if (flow_equal(&miss->flow, flow)) { | |
2531 | return miss; | |
2532 | } | |
2533 | } | |
abe529af | 2534 | |
501f8d1f BP |
2535 | miss = xmalloc(sizeof *miss); |
2536 | hmap_insert(todo, &miss->hmap_node, hash); | |
2537 | miss->flow = *flow; | |
b0f7b9b5 | 2538 | miss->key_fitness = key_fitness; |
501f8d1f BP |
2539 | miss->key = key; |
2540 | miss->key_len = key_len; | |
e84173dc | 2541 | miss->initial_tci = initial_tci; |
501f8d1f BP |
2542 | list_init(&miss->packets); |
2543 | return miss; | |
2544 | } | |
abe529af | 2545 | |
501f8d1f BP |
2546 | static void |
2547 | handle_flow_miss(struct ofproto_dpif *ofproto, struct flow_miss *miss, | |
2548 | struct flow_miss_op *ops, size_t *n_ops) | |
2549 | { | |
2550 | const struct flow *flow = &miss->flow; | |
2551 | struct ofpbuf *packet, *next_packet; | |
b0f7b9b5 | 2552 | struct subfacet *subfacet; |
501f8d1f | 2553 | struct facet *facet; |
abe529af | 2554 | |
501f8d1f | 2555 | facet = facet_lookup_valid(ofproto, flow); |
abe529af | 2556 | if (!facet) { |
501f8d1f BP |
2557 | struct rule_dpif *rule; |
2558 | ||
2559 | rule = rule_dpif_lookup(ofproto, flow, 0); | |
abe529af | 2560 | if (!rule) { |
9e1fd49b | 2561 | /* Don't send a packet-in if OFPUTIL_PC_NO_PACKET_IN asserted. */ |
501f8d1f | 2562 | struct ofport_dpif *port = get_ofp_port(ofproto, flow->in_port); |
abe529af | 2563 | if (port) { |
9e1fd49b | 2564 | if (port->up.pp.config & OFPUTIL_PC_NO_PACKET_IN) { |
abe529af BP |
2565 | COVERAGE_INC(ofproto_dpif_no_packet_in); |
2566 | /* XXX install 'drop' flow entry */ | |
abe529af BP |
2567 | return; |
2568 | } | |
2569 | } else { | |
2570 | VLOG_WARN_RL(&rl, "packet-in on unknown port %"PRIu16, | |
501f8d1f BP |
2571 | flow->in_port); |
2572 | } | |
2573 | ||
29ebe880 EJ |
2574 | LIST_FOR_EACH (packet, list_node, &miss->packets) { |
2575 | send_packet_in_miss(ofproto, packet, flow); | |
abe529af BP |
2576 | } |
2577 | ||
abe529af BP |
2578 | return; |
2579 | } | |
2580 | ||
501f8d1f | 2581 | facet = facet_create(rule, flow); |
abe529af BP |
2582 | } |
2583 | ||
15baa734 | 2584 | subfacet = subfacet_create(facet, |
e84173dc BP |
2585 | miss->key_fitness, miss->key, miss->key_len, |
2586 | miss->initial_tci); | |
b0f7b9b5 | 2587 | |
501f8d1f | 2588 | LIST_FOR_EACH_SAFE (packet, next_packet, list_node, &miss->packets) { |
67d91f78 | 2589 | struct dpif_flow_stats stats; |
999fba59 EJ |
2590 | struct flow_miss_op *op; |
2591 | struct dpif_execute *execute; | |
67d91f78 | 2592 | |
501f8d1f BP |
2593 | ofproto->n_matches++; |
2594 | ||
2595 | if (facet->rule->up.cr.priority == FAIL_OPEN_PRIORITY) { | |
2596 | /* | |
2597 | * Extra-special case for fail-open mode. | |
2598 | * | |
2599 | * We are in fail-open mode and the packet matched the fail-open | |
2600 | * rule, but we are connected to a controller too. We should send | |
2601 | * the packet up to the controller in the hope that it will try to | |
2602 | * set up a flow and thereby allow us to exit fail-open. | |
2603 | * | |
2604 | * See the top-level comment in fail-open.c for more information. | |
2605 | */ | |
29ebe880 | 2606 | send_packet_in_miss(ofproto, packet, flow); |
501f8d1f BP |
2607 | } |
2608 | ||
b95fc6ba | 2609 | if (!facet->may_install || !subfacet->actions) { |
15baa734 | 2610 | subfacet_make_actions(subfacet, packet); |
501f8d1f | 2611 | } |
67d91f78 | 2612 | |
67d91f78 | 2613 | dpif_flow_stats_extract(&facet->flow, packet, &stats); |
15baa734 | 2614 | subfacet_update_stats(subfacet, &stats); |
67d91f78 | 2615 | |
8338659a BP |
2616 | if (!subfacet->actions_len) { |
2617 | /* No actions to execute, so skip talking to the dpif. */ | |
2618 | continue; | |
2619 | } | |
2620 | ||
999fba59 EJ |
2621 | if (flow->vlan_tci != subfacet->initial_tci) { |
2622 | /* This packet was received on a VLAN splinter port. We added | |
2623 | * a VLAN to the packet to make the packet resemble the flow, | |
2624 | * but the actions were composed assuming that the packet | |
2625 | * contained no VLAN. So, we must remove the VLAN header from | |
2626 | * the packet before trying to execute the actions. */ | |
2627 | eth_pop_vlan(packet); | |
501f8d1f | 2628 | } |
999fba59 EJ |
2629 | |
2630 | op = &ops[(*n_ops)++]; | |
c2b565b5 | 2631 | execute = &op->dpif_op.u.execute; |
999fba59 | 2632 | op->subfacet = subfacet; |
c2b565b5 | 2633 | op->dpif_op.type = DPIF_OP_EXECUTE; |
999fba59 EJ |
2634 | execute->key = miss->key; |
2635 | execute->key_len = miss->key_len; | |
2636 | execute->actions = (facet->may_install | |
2637 | ? subfacet->actions | |
2638 | : xmemdup(subfacet->actions, | |
2639 | subfacet->actions_len)); | |
2640 | execute->actions_len = subfacet->actions_len; | |
2641 | execute->packet = packet; | |
501f8d1f BP |
2642 | } |
2643 | ||
b0f7b9b5 | 2644 | if (facet->may_install && subfacet->key_fitness != ODP_FIT_TOO_LITTLE) { |
501f8d1f | 2645 | struct flow_miss_op *op = &ops[(*n_ops)++]; |
c2b565b5 | 2646 | struct dpif_flow_put *put = &op->dpif_op.u.flow_put; |
501f8d1f | 2647 | |
b0f7b9b5 | 2648 | op->subfacet = subfacet; |
c2b565b5 | 2649 | op->dpif_op.type = DPIF_OP_FLOW_PUT; |
501f8d1f BP |
2650 | put->flags = DPIF_FP_CREATE | DPIF_FP_MODIFY; |
2651 | put->key = miss->key; | |
2652 | put->key_len = miss->key_len; | |
b95fc6ba BP |
2653 | put->actions = subfacet->actions; |
2654 | put->actions_len = subfacet->actions_len; | |
501f8d1f BP |
2655 | put->stats = NULL; |
2656 | } | |
2657 | } | |
2658 | ||
e2a6ca36 BP |
2659 | /* Like odp_flow_key_to_flow(), this function converts the 'key_len' bytes of |
2660 | * OVS_KEY_ATTR_* attributes in 'key' to a flow structure in 'flow' and returns | |
2661 | * an ODP_FIT_* value that indicates how well 'key' fits our expectations for | |
2662 | * what a flow key should contain. | |
2663 | * | |
2664 | * This function also includes some logic to help make VLAN splinters | |
2665 | * transparent to the rest of the upcall processing logic. In particular, if | |
2666 | * the extracted in_port is a VLAN splinter port, it replaces flow->in_port by | |
2667 | * the "real" port, sets flow->vlan_tci correctly for the VLAN of the VLAN | |
2668 | * splinter port, and pushes a VLAN header onto 'packet' (if it is nonnull). | |
2669 | * | |
2670 | * Sets '*initial_tci' to the VLAN TCI with which the packet was really | |
2671 | * received, that is, the actual VLAN TCI extracted by odp_flow_key_to_flow(). | |
2672 | * (This differs from the value returned in flow->vlan_tci only for packets | |
2673 | * received on VLAN splinters.) | |
2674 | */ | |
e84173dc | 2675 | static enum odp_key_fitness |
52a90c29 | 2676 | ofproto_dpif_extract_flow_key(const struct ofproto_dpif *ofproto, |
e84173dc | 2677 | const struct nlattr *key, size_t key_len, |
e2a6ca36 BP |
2678 | struct flow *flow, ovs_be16 *initial_tci, |
2679 | struct ofpbuf *packet) | |
e84173dc BP |
2680 | { |
2681 | enum odp_key_fitness fitness; | |
52a90c29 BP |
2682 | uint16_t realdev; |
2683 | int vid; | |
e84173dc BP |
2684 | |
2685 | fitness = odp_flow_key_to_flow(key, key_len, flow); | |
2686 | if (fitness == ODP_FIT_ERROR) { | |
2687 | return fitness; | |
2688 | } | |
2689 | *initial_tci = flow->vlan_tci; | |
2690 | ||
52a90c29 BP |
2691 | realdev = vsp_vlandev_to_realdev(ofproto, flow->in_port, &vid); |
2692 | if (realdev) { | |
2693 | /* Cause the flow to be processed as if it came in on the real device | |
2694 | * with the VLAN device's VLAN ID. */ | |
2695 | flow->in_port = realdev; | |
2696 | flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI); | |
e2a6ca36 BP |
2697 | if (packet) { |
2698 | /* Make the packet resemble the flow, so that it gets sent to an | |
2699 | * OpenFlow controller properly, so that it looks correct for | |
2700 | * sFlow, and so that flow_extract() will get the correct vlan_tci | |
2701 | * if it is called on 'packet'. | |
2702 | * | |
2703 | * The allocated space inside 'packet' probably also contains | |
2704 | * 'key', that is, both 'packet' and 'key' are probably part of a | |
2705 | * struct dpif_upcall (see the large comment on that structure | |
2706 | * definition), so pushing data on 'packet' is in general not a | |
2707 | * good idea since it could overwrite 'key' or free it as a side | |
2708 | * effect. However, it's OK in this special case because we know | |
2709 | * that 'packet' is inside a Netlink attribute: pushing 4 bytes | |
2710 | * will just overwrite the 4-byte "struct nlattr", which is fine | |
2711 | * since we don't need that header anymore. */ | |
2712 | eth_push_vlan(packet, flow->vlan_tci); | |
2713 | } | |
52a90c29 BP |
2714 | |
2715 | /* Let the caller know that we can't reproduce 'key' from 'flow'. */ | |
2716 | if (fitness == ODP_FIT_PERFECT) { | |
2717 | fitness = ODP_FIT_TOO_MUCH; | |
2718 | } | |
2719 | } | |
2720 | ||
e84173dc BP |
2721 | return fitness; |
2722 | } | |
2723 | ||
501f8d1f BP |
2724 | static void |
2725 | handle_miss_upcalls(struct ofproto_dpif *ofproto, struct dpif_upcall *upcalls, | |
2726 | size_t n_upcalls) | |
2727 | { | |
2728 | struct dpif_upcall *upcall; | |
2729 | struct flow_miss *miss, *next_miss; | |
2730 | struct flow_miss_op flow_miss_ops[FLOW_MISS_MAX_BATCH * 2]; | |
c2b565b5 | 2731 | struct dpif_op *dpif_ops[FLOW_MISS_MAX_BATCH * 2]; |
501f8d1f BP |
2732 | struct hmap todo; |
2733 | size_t n_ops; | |
2734 | size_t i; | |
2735 | ||
2736 | if (!n_upcalls) { | |
2737 | return; | |
2738 | } | |
2739 | ||
2740 | /* Construct the to-do list. | |
2741 | * | |
2742 | * This just amounts to extracting the flow from each packet and sticking | |
2743 | * the packets that have the same flow in the same "flow_miss" structure so | |
2744 | * that we can process them together. */ | |
2745 | hmap_init(&todo); | |
2746 | for (upcall = upcalls; upcall < &upcalls[n_upcalls]; upcall++) { | |
b0f7b9b5 | 2747 | enum odp_key_fitness fitness; |
501f8d1f | 2748 | struct flow_miss *miss; |
e84173dc | 2749 | ovs_be16 initial_tci; |
501f8d1f BP |
2750 | struct flow flow; |
2751 | ||
b0f7b9b5 BP |
2752 | /* Obtain metadata and check userspace/kernel agreement on flow match, |
2753 | * then set 'flow''s header pointers. */ | |
e84173dc BP |
2754 | fitness = ofproto_dpif_extract_flow_key(ofproto, |
2755 | upcall->key, upcall->key_len, | |
e2a6ca36 BP |
2756 | &flow, &initial_tci, |
2757 | upcall->packet); | |
b0f7b9b5 | 2758 | if (fitness == ODP_FIT_ERROR) { |
6b17ca5c | 2759 | ofpbuf_delete(upcall->packet); |
b0f7b9b5 BP |
2760 | continue; |
2761 | } | |
deedf7e7 | 2762 | flow_extract(upcall->packet, flow.skb_priority, flow.tun_id, |
abff858b | 2763 | flow.in_port, &flow); |
501f8d1f | 2764 | |
21f7563c | 2765 | /* Handle 802.1ag, LACP, and STP specially. */ |
501f8d1f | 2766 | if (process_special(ofproto, &flow, upcall->packet)) { |
6527c598 PS |
2767 | ofproto_update_local_port_stats(&ofproto->up, |
2768 | 0, upcall->packet->size); | |
501f8d1f BP |
2769 | ofpbuf_delete(upcall->packet); |
2770 | ofproto->n_matches++; | |
2771 | continue; | |
2772 | } | |
2773 | ||
2774 | /* Add other packets to a to-do list. */ | |
b0f7b9b5 | 2775 | miss = flow_miss_create(&todo, &flow, fitness, |
e84173dc | 2776 | upcall->key, upcall->key_len, initial_tci); |
501f8d1f BP |
2777 | list_push_back(&miss->packets, &upcall->packet->list_node); |
2778 | } | |
2779 | ||
2780 | /* Process each element in the to-do list, constructing the set of | |
2781 | * operations to batch. */ | |
2782 | n_ops = 0; | |
33bb0caa | 2783 | HMAP_FOR_EACH (miss, hmap_node, &todo) { |
501f8d1f | 2784 | handle_flow_miss(ofproto, miss, flow_miss_ops, &n_ops); |
abe529af | 2785 | } |
501f8d1f | 2786 | assert(n_ops <= ARRAY_SIZE(flow_miss_ops)); |
501f8d1f BP |
2787 | |
2788 | /* Execute batch. */ | |
2789 | for (i = 0; i < n_ops; i++) { | |
2790 | dpif_ops[i] = &flow_miss_ops[i].dpif_op; | |
2791 | } | |
2792 | dpif_operate(ofproto->dpif, dpif_ops, n_ops); | |
2793 | ||
2794 | /* Free memory and update facets. */ | |
2795 | for (i = 0; i < n_ops; i++) { | |
2796 | struct flow_miss_op *op = &flow_miss_ops[i]; | |
2797 | struct dpif_execute *execute; | |
501f8d1f BP |
2798 | |
2799 | switch (op->dpif_op.type) { | |
2800 | case DPIF_OP_EXECUTE: | |
c2b565b5 | 2801 | execute = &op->dpif_op.u.execute; |
b95fc6ba | 2802 | if (op->subfacet->actions != execute->actions) { |
501f8d1f BP |
2803 | free((struct nlattr *) execute->actions); |
2804 | } | |
501f8d1f | 2805 | break; |
abe529af | 2806 | |
501f8d1f | 2807 | case DPIF_OP_FLOW_PUT: |
c2b565b5 | 2808 | if (!op->dpif_op.error) { |
b0f7b9b5 | 2809 | op->subfacet->installed = true; |
501f8d1f BP |
2810 | } |
2811 | break; | |
2812 | } | |
2813 | } | |
33bb0caa BP |
2814 | HMAP_FOR_EACH_SAFE (miss, next_miss, hmap_node, &todo) { |
2815 | ofpbuf_list_delete(&miss->packets); | |
2816 | hmap_remove(&todo, &miss->hmap_node); | |
2817 | free(miss); | |
2818 | } | |
2819 | hmap_destroy(&todo); | |
abe529af BP |
2820 | } |
2821 | ||
2822 | static void | |
6ff686f2 PS |
2823 | handle_userspace_upcall(struct ofproto_dpif *ofproto, |
2824 | struct dpif_upcall *upcall) | |
abe529af | 2825 | { |
6ff686f2 | 2826 | struct user_action_cookie cookie; |
e84173dc BP |
2827 | enum odp_key_fitness fitness; |
2828 | ovs_be16 initial_tci; | |
2829 | struct flow flow; | |
abe529af | 2830 | |
6ff686f2 | 2831 | memcpy(&cookie, &upcall->userdata, sizeof(cookie)); |
abe529af | 2832 | |
e84173dc BP |
2833 | fitness = ofproto_dpif_extract_flow_key(ofproto, upcall->key, |
2834 | upcall->key_len, &flow, | |
e2a6ca36 | 2835 | &initial_tci, upcall->packet); |
e84173dc | 2836 | if (fitness == ODP_FIT_ERROR) { |
6b17ca5c | 2837 | ofpbuf_delete(upcall->packet); |
e84173dc BP |
2838 | return; |
2839 | } | |
2840 | ||
6ff686f2 | 2841 | if (cookie.type == USER_ACTION_COOKIE_SFLOW) { |
abe529af | 2842 | if (ofproto->sflow) { |
e84173dc BP |
2843 | dpif_sflow_received(ofproto->sflow, upcall->packet, &flow, |
2844 | &cookie); | |
abe529af | 2845 | } |
6ff686f2 PS |
2846 | } else { |
2847 | VLOG_WARN_RL(&rl, "invalid user cookie : 0x%"PRIx64, upcall->userdata); | |
2848 | } | |
29ebe880 | 2849 | ofpbuf_delete(upcall->packet); |
6ff686f2 PS |
2850 | } |
2851 | ||
9b16c439 BP |
2852 | static int |
2853 | handle_upcalls(struct ofproto_dpif *ofproto, unsigned int max_batch) | |
6ff686f2 | 2854 | { |
9b16c439 BP |
2855 | struct dpif_upcall misses[FLOW_MISS_MAX_BATCH]; |
2856 | int n_misses; | |
2857 | int i; | |
abe529af | 2858 | |
9b16c439 | 2859 | assert (max_batch <= FLOW_MISS_MAX_BATCH); |
abe529af | 2860 | |
9b16c439 BP |
2861 | n_misses = 0; |
2862 | for (i = 0; i < max_batch; i++) { | |
2863 | struct dpif_upcall *upcall = &misses[n_misses]; | |
2864 | int error; | |
2865 | ||
2866 | error = dpif_recv(ofproto->dpif, upcall); | |
2867 | if (error) { | |
9b16c439 BP |
2868 | break; |
2869 | } | |
2870 | ||
2871 | switch (upcall->type) { | |
2872 | case DPIF_UC_ACTION: | |
2873 | handle_userspace_upcall(ofproto, upcall); | |
2874 | break; | |
2875 | ||
2876 | case DPIF_UC_MISS: | |
2877 | /* Handle it later. */ | |
2878 | n_misses++; | |
2879 | break; | |
2880 | ||
2881 | case DPIF_N_UC_TYPES: | |
2882 | default: | |
2883 | VLOG_WARN_RL(&rl, "upcall has unexpected type %"PRIu32, | |
2884 | upcall->type); | |
2885 | break; | |
2886 | } | |
abe529af | 2887 | } |
9b16c439 BP |
2888 | |
2889 | handle_miss_upcalls(ofproto, misses, n_misses); | |
2890 | ||
2891 | return i; | |
abe529af BP |
2892 | } |
2893 | \f | |
2894 | /* Flow expiration. */ | |
2895 | ||
b0f7b9b5 | 2896 | static int subfacet_max_idle(const struct ofproto_dpif *); |
abe529af BP |
2897 | static void update_stats(struct ofproto_dpif *); |
2898 | static void rule_expire(struct rule_dpif *); | |
b0f7b9b5 | 2899 | static void expire_subfacets(struct ofproto_dpif *, int dp_max_idle); |
abe529af BP |
2900 | |
2901 | /* This function is called periodically by run(). Its job is to collect | |
2902 | * updates for the flows that have been installed into the datapath, most | |
2903 | * importantly when they last were used, and then use that information to | |
2904 | * expire flows that have not been used recently. | |
2905 | * | |
2906 | * Returns the number of milliseconds after which it should be called again. */ | |
2907 | static int | |
2908 | expire(struct ofproto_dpif *ofproto) | |
2909 | { | |
2910 | struct rule_dpif *rule, *next_rule; | |
d0918789 | 2911 | struct oftable *table; |
abe529af BP |
2912 | int dp_max_idle; |
2913 | ||
2914 | /* Update stats for each flow in the datapath. */ | |
2915 | update_stats(ofproto); | |
2916 | ||
b0f7b9b5 BP |
2917 | /* Expire subfacets that have been idle too long. */ |
2918 | dp_max_idle = subfacet_max_idle(ofproto); | |
2919 | expire_subfacets(ofproto, dp_max_idle); | |
abe529af BP |
2920 | |
2921 | /* Expire OpenFlow flows whose idle_timeout or hard_timeout has passed. */ | |
0697b5c3 BP |
2922 | OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) { |
2923 | struct cls_cursor cursor; | |
2924 | ||
d0918789 | 2925 | cls_cursor_init(&cursor, &table->cls, NULL); |
0697b5c3 BP |
2926 | CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) { |
2927 | rule_expire(rule); | |
2928 | } | |
abe529af BP |
2929 | } |
2930 | ||
2931 | /* All outstanding data in existing flows has been accounted, so it's a | |
2932 | * good time to do bond rebalancing. */ | |
2933 | if (ofproto->has_bonded_bundles) { | |
2934 | struct ofbundle *bundle; | |
2935 | ||
2936 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
2937 | if (bundle->bond) { | |
2938 | bond_rebalance(bundle->bond, &ofproto->revalidate_set); | |
2939 | } | |
2940 | } | |
2941 | } | |
2942 | ||
2943 | return MIN(dp_max_idle, 1000); | |
2944 | } | |
2945 | ||
2946 | /* Update 'packet_count', 'byte_count', and 'used' members of installed facets. | |
2947 | * | |
2948 | * This function also pushes statistics updates to rules which each facet | |
2949 | * resubmits into. Generally these statistics will be accurate. However, if a | |
2950 | * facet changes the rule it resubmits into at some time in between | |
2951 | * update_stats() runs, it is possible that statistics accrued to the | |
2952 | * old rule will be incorrectly attributed to the new rule. This could be | |
2953 | * avoided by calling update_stats() whenever rules are created or | |
2954 | * deleted. However, the performance impact of making so many calls to the | |
2955 | * datapath do not justify the benefit of having perfectly accurate statistics. | |
2956 | */ | |
2957 | static void | |
2958 | update_stats(struct ofproto_dpif *p) | |
2959 | { | |
2960 | const struct dpif_flow_stats *stats; | |
2961 | struct dpif_flow_dump dump; | |
2962 | const struct nlattr *key; | |
2963 | size_t key_len; | |
2964 | ||
2965 | dpif_flow_dump_start(&dump, p->dpif); | |
2966 | while (dpif_flow_dump_next(&dump, &key, &key_len, NULL, NULL, &stats)) { | |
b0f7b9b5 | 2967 | struct subfacet *subfacet; |
abe529af | 2968 | |
6a542738 | 2969 | subfacet = subfacet_find(p, key, key_len); |
b0f7b9b5 BP |
2970 | if (subfacet && subfacet->installed) { |
2971 | struct facet *facet = subfacet->facet; | |
abe529af | 2972 | |
b0f7b9b5 BP |
2973 | if (stats->n_packets >= subfacet->dp_packet_count) { |
2974 | uint64_t extra = stats->n_packets - subfacet->dp_packet_count; | |
abe529af BP |
2975 | facet->packet_count += extra; |
2976 | } else { | |
2977 | VLOG_WARN_RL(&rl, "unexpected packet count from the datapath"); | |
2978 | } | |
2979 | ||
b0f7b9b5 BP |
2980 | if (stats->n_bytes >= subfacet->dp_byte_count) { |
2981 | facet->byte_count += stats->n_bytes - subfacet->dp_byte_count; | |
abe529af BP |
2982 | } else { |
2983 | VLOG_WARN_RL(&rl, "unexpected byte count from datapath"); | |
2984 | } | |
2985 | ||
b0f7b9b5 BP |
2986 | subfacet->dp_packet_count = stats->n_packets; |
2987 | subfacet->dp_byte_count = stats->n_bytes; | |
abe529af | 2988 | |
0e553d9c BP |
2989 | facet->tcp_flags |= stats->tcp_flags; |
2990 | ||
15baa734 BP |
2991 | subfacet_update_time(subfacet, stats->used); |
2992 | facet_account(facet); | |
abe529af BP |
2993 | facet_push_stats(facet); |
2994 | } else { | |
6a542738 PS |
2995 | if (!VLOG_DROP_WARN(&rl)) { |
2996 | struct ds s; | |
2997 | ||
2998 | ds_init(&s); | |
2999 | odp_flow_key_format(key, key_len, &s); | |
3000 | VLOG_WARN("unexpected flow from datapath %s", ds_cstr(&s)); | |
3001 | ds_destroy(&s); | |
3002 | } | |
3003 | ||
3004 | COVERAGE_INC(facet_unexpected); | |
b0f7b9b5 BP |
3005 | /* There's a flow in the datapath that we know nothing about, or a |
3006 | * flow that shouldn't be installed but was anyway. Delete it. */ | |
abe529af BP |
3007 | dpif_flow_del(p->dpif, key, key_len, NULL); |
3008 | } | |
3009 | } | |
3010 | dpif_flow_dump_done(&dump); | |
3011 | } | |
3012 | ||
3013 | /* Calculates and returns the number of milliseconds of idle time after which | |
b0f7b9b5 BP |
3014 | * subfacets should expire from the datapath. When a subfacet expires, we fold |
3015 | * its statistics into its facet, and when a facet's last subfacet expires, we | |
3016 | * fold its statistic into its rule. */ | |
abe529af | 3017 | static int |
b0f7b9b5 | 3018 | subfacet_max_idle(const struct ofproto_dpif *ofproto) |
abe529af BP |
3019 | { |
3020 | /* | |
3021 | * Idle time histogram. | |
3022 | * | |
b0f7b9b5 BP |
3023 | * Most of the time a switch has a relatively small number of subfacets. |
3024 | * When this is the case we might as well keep statistics for all of them | |
3025 | * in userspace and to cache them in the kernel datapath for performance as | |
abe529af BP |
3026 | * well. |
3027 | * | |
b0f7b9b5 | 3028 | * As the number of subfacets increases, the memory required to maintain |
abe529af | 3029 | * statistics about them in userspace and in the kernel becomes |
b0f7b9b5 BP |
3030 | * significant. However, with a large number of subfacets it is likely |
3031 | * that only a few of them are "heavy hitters" that consume a large amount | |
3032 | * of bandwidth. At this point, only heavy hitters are worth caching in | |
3033 | * the kernel and maintaining in userspaces; other subfacets we can | |
3034 | * discard. | |
abe529af BP |
3035 | * |
3036 | * The technique used to compute the idle time is to build a histogram with | |
b0f7b9b5 | 3037 | * N_BUCKETS buckets whose width is BUCKET_WIDTH msecs each. Each subfacet |
abe529af BP |
3038 | * that is installed in the kernel gets dropped in the appropriate bucket. |
3039 | * After the histogram has been built, we compute the cutoff so that only | |
b0f7b9b5 | 3040 | * the most-recently-used 1% of subfacets (but at least |
084f5290 | 3041 | * ofproto->up.flow_eviction_threshold flows) are kept cached. At least |
b0f7b9b5 BP |
3042 | * the most-recently-used bucket of subfacets is kept, so actually an |
3043 | * arbitrary number of subfacets can be kept in any given expiration run | |
084f5290 SH |
3044 | * (though the next run will delete most of those unless they receive |
3045 | * additional data). | |
abe529af | 3046 | * |
b0f7b9b5 BP |
3047 | * This requires a second pass through the subfacets, in addition to the |
3048 | * pass made by update_stats(), because the former function never looks at | |
3049 | * uninstallable subfacets. | |
abe529af BP |
3050 | */ |
3051 | enum { BUCKET_WIDTH = ROUND_UP(100, TIME_UPDATE_INTERVAL) }; | |
3052 | enum { N_BUCKETS = 5000 / BUCKET_WIDTH }; | |
3053 | int buckets[N_BUCKETS] = { 0 }; | |
f11c1ef4 | 3054 | int total, subtotal, bucket; |
b0f7b9b5 | 3055 | struct subfacet *subfacet; |
abe529af BP |
3056 | long long int now; |
3057 | int i; | |
3058 | ||
b0f7b9b5 | 3059 | total = hmap_count(&ofproto->subfacets); |
084f5290 | 3060 | if (total <= ofproto->up.flow_eviction_threshold) { |
abe529af BP |
3061 | return N_BUCKETS * BUCKET_WIDTH; |
3062 | } | |
3063 | ||
3064 | /* Build histogram. */ | |
3065 | now = time_msec(); | |
b0f7b9b5 BP |
3066 | HMAP_FOR_EACH (subfacet, hmap_node, &ofproto->subfacets) { |
3067 | long long int idle = now - subfacet->used; | |
abe529af BP |
3068 | int bucket = (idle <= 0 ? 0 |
3069 | : idle >= BUCKET_WIDTH * N_BUCKETS ? N_BUCKETS - 1 | |
3070 | : (unsigned int) idle / BUCKET_WIDTH); | |
3071 | buckets[bucket]++; | |
3072 | } | |
3073 | ||
3074 | /* Find the first bucket whose flows should be expired. */ | |
f11c1ef4 SH |
3075 | subtotal = bucket = 0; |
3076 | do { | |
3077 | subtotal += buckets[bucket++]; | |
084f5290 SH |
3078 | } while (bucket < N_BUCKETS && |
3079 | subtotal < MAX(ofproto->up.flow_eviction_threshold, total / 100)); | |
abe529af BP |
3080 | |
3081 | if (VLOG_IS_DBG_ENABLED()) { | |
3082 | struct ds s; | |
3083 | ||
3084 | ds_init(&s); | |
3085 | ds_put_cstr(&s, "keep"); | |
3086 | for (i = 0; i < N_BUCKETS; i++) { | |
3087 | if (i == bucket) { | |
3088 | ds_put_cstr(&s, ", drop"); | |
3089 | } | |
3090 | if (buckets[i]) { | |
3091 | ds_put_format(&s, " %d:%d", i * BUCKET_WIDTH, buckets[i]); | |
3092 | } | |
3093 | } | |
3094 | VLOG_INFO("%s: %s (msec:count)", ofproto->up.name, ds_cstr(&s)); | |
3095 | ds_destroy(&s); | |
3096 | } | |
3097 | ||
3098 | return bucket * BUCKET_WIDTH; | |
3099 | } | |
3100 | ||
abe529af | 3101 | static void |
b0f7b9b5 | 3102 | expire_subfacets(struct ofproto_dpif *ofproto, int dp_max_idle) |
abe529af BP |
3103 | { |
3104 | long long int cutoff = time_msec() - dp_max_idle; | |
b0f7b9b5 | 3105 | struct subfacet *subfacet, *next_subfacet; |
abe529af | 3106 | |
b0f7b9b5 BP |
3107 | HMAP_FOR_EACH_SAFE (subfacet, next_subfacet, hmap_node, |
3108 | &ofproto->subfacets) { | |
3109 | if (subfacet->used < cutoff) { | |
15baa734 | 3110 | subfacet_destroy(subfacet); |
abe529af BP |
3111 | } |
3112 | } | |
3113 | } | |
3114 | ||
3115 | /* If 'rule' is an OpenFlow rule, that has expired according to OpenFlow rules, | |
3116 | * then delete it entirely. */ | |
3117 | static void | |
3118 | rule_expire(struct rule_dpif *rule) | |
3119 | { | |
abe529af BP |
3120 | struct facet *facet, *next_facet; |
3121 | long long int now; | |
3122 | uint8_t reason; | |
3123 | ||
3124 | /* Has 'rule' expired? */ | |
3125 | now = time_msec(); | |
3126 | if (rule->up.hard_timeout | |
308881af | 3127 | && now > rule->up.modified + rule->up.hard_timeout * 1000) { |
abe529af | 3128 | reason = OFPRR_HARD_TIMEOUT; |
8ea6ac3e | 3129 | } else if (rule->up.idle_timeout |
1745cd08 | 3130 | && now > rule->up.used + rule->up.idle_timeout * 1000) { |
abe529af BP |
3131 | reason = OFPRR_IDLE_TIMEOUT; |
3132 | } else { | |
3133 | return; | |
3134 | } | |
3135 | ||
3136 | COVERAGE_INC(ofproto_dpif_expired); | |
3137 | ||
3138 | /* Update stats. (This is a no-op if the rule expired due to an idle | |
3139 | * timeout, because that only happens when the rule has no facets left.) */ | |
3140 | LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) { | |
15baa734 | 3141 | facet_remove(facet); |
abe529af BP |
3142 | } |
3143 | ||
3144 | /* Get rid of the rule. */ | |
3145 | ofproto_rule_expire(&rule->up, reason); | |
3146 | } | |
3147 | \f | |
3148 | /* Facets. */ | |
3149 | ||
f3827897 | 3150 | /* Creates and returns a new facet owned by 'rule', given a 'flow'. |
abe529af BP |
3151 | * |
3152 | * The caller must already have determined that no facet with an identical | |
3153 | * 'flow' exists in 'ofproto' and that 'flow' is the best match for 'rule' in | |
f3827897 BP |
3154 | * the ofproto's classifier table. |
3155 | * | |
b0f7b9b5 BP |
3156 | * The facet will initially have no subfacets. The caller should create (at |
3157 | * least) one subfacet with subfacet_create(). */ | |
abe529af | 3158 | static struct facet * |
f3827897 | 3159 | facet_create(struct rule_dpif *rule, const struct flow *flow) |
abe529af BP |
3160 | { |
3161 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
3162 | struct facet *facet; | |
3163 | ||
3164 | facet = xzalloc(sizeof *facet); | |
3165 | facet->used = time_msec(); | |
3166 | hmap_insert(&ofproto->facets, &facet->hmap_node, flow_hash(flow, 0)); | |
3167 | list_push_back(&rule->facets, &facet->list_node); | |
3168 | facet->rule = rule; | |
3169 | facet->flow = *flow; | |
b0f7b9b5 | 3170 | list_init(&facet->subfacets); |
abe529af BP |
3171 | netflow_flow_init(&facet->nf_flow); |
3172 | netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, facet->used); | |
3173 | ||
abe529af BP |
3174 | return facet; |
3175 | } | |
3176 | ||
3177 | static void | |
3178 | facet_free(struct facet *facet) | |
3179 | { | |
abe529af BP |
3180 | free(facet); |
3181 | } | |
3182 | ||
3d9e05f8 BP |
3183 | /* Executes, within 'ofproto', the 'n_actions' actions in 'actions' on |
3184 | * 'packet', which arrived on 'in_port'. | |
3185 | * | |
3186 | * Takes ownership of 'packet'. */ | |
3187 | static bool | |
3188 | execute_odp_actions(struct ofproto_dpif *ofproto, const struct flow *flow, | |
3189 | const struct nlattr *odp_actions, size_t actions_len, | |
3190 | struct ofpbuf *packet) | |
3191 | { | |
3192 | struct odputil_keybuf keybuf; | |
3193 | struct ofpbuf key; | |
3194 | int error; | |
3195 | ||
6ff686f2 PS |
3196 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
3197 | odp_flow_key_from_flow(&key, flow); | |
80e5eed9 | 3198 | |
6ff686f2 PS |
3199 | error = dpif_execute(ofproto->dpif, key.data, key.size, |
3200 | odp_actions, actions_len, packet); | |
80e5eed9 | 3201 | |
6ff686f2 PS |
3202 | ofpbuf_delete(packet); |
3203 | return !error; | |
abe529af BP |
3204 | } |
3205 | ||
abe529af BP |
3206 | /* Remove 'facet' from 'ofproto' and free up the associated memory: |
3207 | * | |
3208 | * - If 'facet' was installed in the datapath, uninstalls it and updates its | |
b0f7b9b5 | 3209 | * rule's statistics, via subfacet_uninstall(). |
abe529af BP |
3210 | * |
3211 | * - Removes 'facet' from its rule and from ofproto->facets. | |
3212 | */ | |
3213 | static void | |
15baa734 | 3214 | facet_remove(struct facet *facet) |
abe529af | 3215 | { |
15baa734 | 3216 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b0f7b9b5 BP |
3217 | struct subfacet *subfacet, *next_subfacet; |
3218 | ||
551a2f6c BP |
3219 | assert(!list_is_empty(&facet->subfacets)); |
3220 | ||
3221 | /* First uninstall all of the subfacets to get final statistics. */ | |
3222 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
15baa734 | 3223 | subfacet_uninstall(subfacet); |
551a2f6c BP |
3224 | } |
3225 | ||
3226 | /* Flush the final stats to the rule. | |
3227 | * | |
3228 | * This might require us to have at least one subfacet around so that we | |
3229 | * can use its actions for accounting in facet_account(), which is why we | |
3230 | * have uninstalled but not yet destroyed the subfacets. */ | |
15baa734 | 3231 | facet_flush_stats(facet); |
551a2f6c BP |
3232 | |
3233 | /* Now we're really all done so destroy everything. */ | |
b0f7b9b5 BP |
3234 | LIST_FOR_EACH_SAFE (subfacet, next_subfacet, list_node, |
3235 | &facet->subfacets) { | |
15baa734 | 3236 | subfacet_destroy__(subfacet); |
b0f7b9b5 | 3237 | } |
abe529af BP |
3238 | hmap_remove(&ofproto->facets, &facet->hmap_node); |
3239 | list_remove(&facet->list_node); | |
3240 | facet_free(facet); | |
3241 | } | |
3242 | ||
abe529af | 3243 | static void |
15baa734 | 3244 | facet_account(struct facet *facet) |
abe529af | 3245 | { |
15baa734 | 3246 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
55af77bb | 3247 | uint64_t n_bytes; |
b95fc6ba | 3248 | struct subfacet *subfacet; |
abe529af | 3249 | const struct nlattr *a; |
abe529af | 3250 | unsigned int left; |
d78be13b | 3251 | ovs_be16 vlan_tci; |
abe529af | 3252 | |
55af77bb | 3253 | if (facet->byte_count <= facet->accounted_bytes) { |
abe529af BP |
3254 | return; |
3255 | } | |
55af77bb EJ |
3256 | n_bytes = facet->byte_count - facet->accounted_bytes; |
3257 | facet->accounted_bytes = facet->byte_count; | |
abe529af | 3258 | |
75a75043 | 3259 | /* Feed information from the active flows back into the learning table to |
abe529af BP |
3260 | * ensure that table is always in sync with what is actually flowing |
3261 | * through the datapath. */ | |
0e553d9c BP |
3262 | if (facet->has_learn || facet->has_normal |
3263 | || (facet->has_fin_timeout | |
3264 | && facet->tcp_flags & (TCP_FIN | TCP_RST))) { | |
75a75043 | 3265 | struct action_xlate_ctx ctx; |
abe529af | 3266 | |
e84173dc | 3267 | action_xlate_ctx_init(&ctx, ofproto, &facet->flow, |
54834960 | 3268 | facet->flow.vlan_tci, |
0e553d9c | 3269 | facet->rule, facet->tcp_flags, NULL); |
75a75043 BP |
3270 | ctx.may_learn = true; |
3271 | ofpbuf_delete(xlate_actions(&ctx, facet->rule->up.actions, | |
3272 | facet->rule->up.n_actions)); | |
3273 | } | |
abe529af | 3274 | |
75a75043 | 3275 | if (!facet->has_normal || !ofproto->has_bonded_bundles) { |
abe529af BP |
3276 | return; |
3277 | } | |
d78be13b BP |
3278 | |
3279 | /* This loop feeds byte counters to bond_account() for rebalancing to use | |
3280 | * as a basis. We also need to track the actual VLAN on which the packet | |
3281 | * is going to be sent to ensure that it matches the one passed to | |
3282 | * bond_choose_output_slave(). (Otherwise, we will account to the wrong | |
b95fc6ba BP |
3283 | * hash bucket.) |
3284 | * | |
3285 | * We use the actions from an arbitrary subfacet because they should all | |
3286 | * be equally valid for our purpose. */ | |
3287 | subfacet = CONTAINER_OF(list_front(&facet->subfacets), | |
3288 | struct subfacet, list_node); | |
d78be13b | 3289 | vlan_tci = facet->flow.vlan_tci; |
b95fc6ba BP |
3290 | NL_ATTR_FOR_EACH_UNSAFE (a, left, |
3291 | subfacet->actions, subfacet->actions_len) { | |
fea393b1 | 3292 | const struct ovs_action_push_vlan *vlan; |
d78be13b | 3293 | struct ofport_dpif *port; |
abe529af | 3294 | |
d78be13b | 3295 | switch (nl_attr_type(a)) { |
df2c07f4 | 3296 | case OVS_ACTION_ATTR_OUTPUT: |
abe529af BP |
3297 | port = get_odp_port(ofproto, nl_attr_get_u32(a)); |
3298 | if (port && port->bundle && port->bundle->bond) { | |
d78be13b | 3299 | bond_account(port->bundle->bond, &facet->flow, |
dc155bff | 3300 | vlan_tci_to_vid(vlan_tci), n_bytes); |
abe529af | 3301 | } |
d78be13b BP |
3302 | break; |
3303 | ||
fea393b1 BP |
3304 | case OVS_ACTION_ATTR_POP_VLAN: |
3305 | vlan_tci = htons(0); | |
d78be13b BP |
3306 | break; |
3307 | ||
fea393b1 BP |
3308 | case OVS_ACTION_ATTR_PUSH_VLAN: |
3309 | vlan = nl_attr_get(a); | |
3310 | vlan_tci = vlan->vlan_tci; | |
d78be13b | 3311 | break; |
abe529af BP |
3312 | } |
3313 | } | |
3314 | } | |
3315 | ||
abe529af BP |
3316 | /* Returns true if the only action for 'facet' is to send to the controller. |
3317 | * (We don't report NetFlow expiration messages for such facets because they | |
3318 | * are just part of the control logic for the network, not real traffic). */ | |
3319 | static bool | |
3320 | facet_is_controller_flow(struct facet *facet) | |
3321 | { | |
3322 | return (facet | |
3323 | && facet->rule->up.n_actions == 1 | |
3324 | && action_outputs_to_port(&facet->rule->up.actions[0], | |
3325 | htons(OFPP_CONTROLLER))); | |
3326 | } | |
3327 | ||
3328 | /* Folds all of 'facet''s statistics into its rule. Also updates the | |
3329 | * accounting ofhook and emits a NetFlow expiration if appropriate. All of | |
3330 | * 'facet''s statistics in the datapath should have been zeroed and folded into | |
3331 | * its packet and byte counts before this function is called. */ | |
3332 | static void | |
15baa734 | 3333 | facet_flush_stats(struct facet *facet) |
abe529af | 3334 | { |
15baa734 | 3335 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b0f7b9b5 BP |
3336 | struct subfacet *subfacet; |
3337 | ||
3338 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
3339 | assert(!subfacet->dp_byte_count); | |
3340 | assert(!subfacet->dp_packet_count); | |
3341 | } | |
abe529af BP |
3342 | |
3343 | facet_push_stats(facet); | |
15baa734 | 3344 | facet_account(facet); |
abe529af BP |
3345 | |
3346 | if (ofproto->netflow && !facet_is_controller_flow(facet)) { | |
3347 | struct ofexpired expired; | |
3348 | expired.flow = facet->flow; | |
3349 | expired.packet_count = facet->packet_count; | |
3350 | expired.byte_count = facet->byte_count; | |
3351 | expired.used = facet->used; | |
3352 | netflow_expire(ofproto->netflow, &facet->nf_flow, &expired); | |
3353 | } | |
3354 | ||
3355 | facet->rule->packet_count += facet->packet_count; | |
3356 | facet->rule->byte_count += facet->byte_count; | |
3357 | ||
3358 | /* Reset counters to prevent double counting if 'facet' ever gets | |
3359 | * reinstalled. */ | |
bbb5d219 | 3360 | facet_reset_counters(facet); |
abe529af BP |
3361 | |
3362 | netflow_flow_clear(&facet->nf_flow); | |
0e553d9c | 3363 | facet->tcp_flags = 0; |
abe529af BP |
3364 | } |
3365 | ||
3366 | /* Searches 'ofproto''s table of facets for one exactly equal to 'flow'. | |
3367 | * Returns it if found, otherwise a null pointer. | |
3368 | * | |
3369 | * The returned facet might need revalidation; use facet_lookup_valid() | |
3370 | * instead if that is important. */ | |
3371 | static struct facet * | |
3372 | facet_find(struct ofproto_dpif *ofproto, const struct flow *flow) | |
3373 | { | |
3374 | struct facet *facet; | |
3375 | ||
3376 | HMAP_FOR_EACH_WITH_HASH (facet, hmap_node, flow_hash(flow, 0), | |
3377 | &ofproto->facets) { | |
3378 | if (flow_equal(flow, &facet->flow)) { | |
3379 | return facet; | |
3380 | } | |
3381 | } | |
3382 | ||
3383 | return NULL; | |
3384 | } | |
3385 | ||
3386 | /* Searches 'ofproto''s table of facets for one exactly equal to 'flow'. | |
3387 | * Returns it if found, otherwise a null pointer. | |
3388 | * | |
3389 | * The returned facet is guaranteed to be valid. */ | |
3390 | static struct facet * | |
3391 | facet_lookup_valid(struct ofproto_dpif *ofproto, const struct flow *flow) | |
3392 | { | |
3393 | struct facet *facet = facet_find(ofproto, flow); | |
3394 | ||
3395 | /* The facet we found might not be valid, since we could be in need of | |
3396 | * revalidation. If it is not valid, don't return it. */ | |
3397 | if (facet | |
0e4b3771 BP |
3398 | && (ofproto->need_revalidate |
3399 | || tag_set_intersects(&ofproto->revalidate_set, facet->tags)) | |
15baa734 | 3400 | && !facet_revalidate(facet)) { |
abe529af BP |
3401 | COVERAGE_INC(facet_invalidated); |
3402 | return NULL; | |
3403 | } | |
3404 | ||
3405 | return facet; | |
3406 | } | |
3407 | ||
6814e51f BP |
3408 | static bool |
3409 | facet_check_consistency(struct facet *facet) | |
3410 | { | |
3411 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 15); | |
3412 | ||
3413 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
3414 | ||
3415 | struct rule_dpif *rule; | |
3416 | struct subfacet *subfacet; | |
c53e1132 | 3417 | bool may_log = false; |
6814e51f BP |
3418 | bool ok; |
3419 | ||
3420 | /* Check the rule for consistency. */ | |
3421 | rule = rule_dpif_lookup(ofproto, &facet->flow, 0); | |
3422 | if (!rule) { | |
3423 | if (!VLOG_DROP_WARN(&rl)) { | |
3424 | char *s = flow_to_string(&facet->flow); | |
3425 | VLOG_WARN("%s: facet should not exist", s); | |
3426 | free(s); | |
3427 | } | |
3428 | return false; | |
3429 | } else if (rule != facet->rule) { | |
c53e1132 BP |
3430 | may_log = !VLOG_DROP_WARN(&rl); |
3431 | ok = false; | |
3432 | if (may_log) { | |
3433 | struct ds s; | |
6814e51f | 3434 | |
c53e1132 BP |
3435 | ds_init(&s); |
3436 | flow_format(&s, &facet->flow); | |
3437 | ds_put_format(&s, ": facet associated with wrong rule (was " | |
3438 | "table=%"PRIu8",", facet->rule->up.table_id); | |
3439 | cls_rule_format(&facet->rule->up.cr, &s); | |
3440 | ds_put_format(&s, ") (should have been table=%"PRIu8",", | |
3441 | rule->up.table_id); | |
3442 | cls_rule_format(&rule->up.cr, &s); | |
3443 | ds_put_char(&s, ')'); | |
6814e51f | 3444 | |
c53e1132 BP |
3445 | VLOG_WARN("%s", ds_cstr(&s)); |
3446 | ds_destroy(&s); | |
3447 | } | |
6814e51f BP |
3448 | } else { |
3449 | ok = true; | |
3450 | } | |
3451 | ||
3452 | /* Check the datapath actions for consistency. */ | |
3453 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
3454 | struct action_xlate_ctx ctx; | |
3455 | struct ofpbuf *odp_actions; | |
3456 | bool actions_changed; | |
3457 | bool should_install; | |
3458 | ||
3459 | action_xlate_ctx_init(&ctx, ofproto, &facet->flow, | |
0e553d9c | 3460 | subfacet->initial_tci, rule, 0, NULL); |
6814e51f BP |
3461 | odp_actions = xlate_actions(&ctx, rule->up.actions, |
3462 | rule->up.n_actions); | |
3463 | ||
3464 | should_install = (ctx.may_set_up_flow | |
3465 | && subfacet->key_fitness != ODP_FIT_TOO_LITTLE); | |
3466 | if (!should_install && !subfacet->installed) { | |
3467 | /* The actions for uninstallable flows may vary from one packet to | |
3468 | * the next, so don't compare the actions. */ | |
3469 | goto next; | |
3470 | } | |
3471 | ||
3472 | actions_changed = (subfacet->actions_len != odp_actions->size | |
3473 | || memcmp(subfacet->actions, odp_actions->data, | |
3474 | subfacet->actions_len)); | |
3475 | if (should_install != subfacet->installed || actions_changed) { | |
c53e1132 BP |
3476 | if (ok) { |
3477 | may_log = !VLOG_DROP_WARN(&rl); | |
3478 | ok = false; | |
3479 | } | |
6814e51f | 3480 | |
c53e1132 BP |
3481 | if (may_log) { |
3482 | struct odputil_keybuf keybuf; | |
3483 | struct ofpbuf key; | |
3484 | struct ds s; | |
6814e51f | 3485 | |
c53e1132 BP |
3486 | ds_init(&s); |
3487 | subfacet_get_key(subfacet, &keybuf, &key); | |
3488 | odp_flow_key_format(key.data, key.size, &s); | |
3489 | ||
3490 | ds_put_cstr(&s, ": inconsistency in subfacet"); | |
3491 | if (should_install != subfacet->installed) { | |
3492 | enum odp_key_fitness fitness = subfacet->key_fitness; | |
3493 | ||
3494 | ds_put_format(&s, " (should%s have been installed)", | |
3495 | should_install ? "" : " not"); | |
3496 | ds_put_format(&s, " (may_set_up_flow=%s, fitness=%s)", | |
3497 | ctx.may_set_up_flow ? "true" : "false", | |
3498 | odp_key_fitness_to_string(fitness)); | |
3499 | } | |
3500 | if (actions_changed) { | |
3501 | ds_put_cstr(&s, " (actions were: "); | |
3502 | format_odp_actions(&s, subfacet->actions, | |
3503 | subfacet->actions_len); | |
3504 | ds_put_cstr(&s, ") (correct actions: "); | |
3505 | format_odp_actions(&s, odp_actions->data, | |
3506 | odp_actions->size); | |
3507 | ds_put_char(&s, ')'); | |
3508 | } else { | |
3509 | ds_put_cstr(&s, " (actions: "); | |
3510 | format_odp_actions(&s, subfacet->actions, | |
3511 | subfacet->actions_len); | |
3512 | ds_put_char(&s, ')'); | |
3513 | } | |
3514 | VLOG_WARN("%s", ds_cstr(&s)); | |
3515 | ds_destroy(&s); | |
6814e51f | 3516 | } |
6814e51f BP |
3517 | } |
3518 | ||
3519 | next: | |
3520 | ofpbuf_delete(odp_actions); | |
3521 | } | |
3522 | ||
3523 | return ok; | |
3524 | } | |
3525 | ||
15baa734 | 3526 | /* Re-searches the classifier for 'facet': |
abe529af BP |
3527 | * |
3528 | * - If the rule found is different from 'facet''s current rule, moves | |
3529 | * 'facet' to the new rule and recompiles its actions. | |
3530 | * | |
3531 | * - If the rule found is the same as 'facet''s current rule, leaves 'facet' | |
3532 | * where it is and recompiles its actions anyway. | |
3533 | * | |
3534 | * - If there is none, destroys 'facet'. | |
3535 | * | |
3536 | * Returns true if 'facet' still exists, false if it has been destroyed. */ | |
3537 | static bool | |
15baa734 | 3538 | facet_revalidate(struct facet *facet) |
abe529af | 3539 | { |
15baa734 | 3540 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b95fc6ba BP |
3541 | struct actions { |
3542 | struct nlattr *odp_actions; | |
3543 | size_t actions_len; | |
3544 | }; | |
3545 | struct actions *new_actions; | |
3546 | ||
abe529af | 3547 | struct action_xlate_ctx ctx; |
abe529af | 3548 | struct rule_dpif *new_rule; |
b0f7b9b5 | 3549 | struct subfacet *subfacet; |
abe529af | 3550 | bool actions_changed; |
b95fc6ba | 3551 | int i; |
abe529af BP |
3552 | |
3553 | COVERAGE_INC(facet_revalidate); | |
3554 | ||
3555 | /* Determine the new rule. */ | |
29901626 | 3556 | new_rule = rule_dpif_lookup(ofproto, &facet->flow, 0); |
abe529af BP |
3557 | if (!new_rule) { |
3558 | /* No new rule, so delete the facet. */ | |
15baa734 | 3559 | facet_remove(facet); |
abe529af BP |
3560 | return false; |
3561 | } | |
3562 | ||
df2c07f4 | 3563 | /* Calculate new datapath actions. |
abe529af BP |
3564 | * |
3565 | * We do not modify any 'facet' state yet, because we might need to, e.g., | |
3566 | * emit a NetFlow expiration and, if so, we need to have the old state | |
3567 | * around to properly compose it. */ | |
abe529af | 3568 | |
df2c07f4 JP |
3569 | /* If the datapath actions changed or the installability changed, |
3570 | * then we need to talk to the datapath. */ | |
b95fc6ba BP |
3571 | i = 0; |
3572 | new_actions = NULL; | |
3573 | memset(&ctx, 0, sizeof ctx); | |
b0f7b9b5 | 3574 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { |
b95fc6ba BP |
3575 | struct ofpbuf *odp_actions; |
3576 | bool should_install; | |
3577 | ||
e84173dc | 3578 | action_xlate_ctx_init(&ctx, ofproto, &facet->flow, |
0e553d9c | 3579 | subfacet->initial_tci, new_rule, 0, NULL); |
b95fc6ba BP |
3580 | odp_actions = xlate_actions(&ctx, new_rule->up.actions, |
3581 | new_rule->up.n_actions); | |
3582 | actions_changed = (subfacet->actions_len != odp_actions->size | |
3583 | || memcmp(subfacet->actions, odp_actions->data, | |
3584 | subfacet->actions_len)); | |
3585 | ||
3586 | should_install = (ctx.may_set_up_flow | |
3587 | && subfacet->key_fitness != ODP_FIT_TOO_LITTLE); | |
b0f7b9b5 BP |
3588 | if (actions_changed || should_install != subfacet->installed) { |
3589 | if (should_install) { | |
3590 | struct dpif_flow_stats stats; | |
3591 | ||
15baa734 | 3592 | subfacet_install(subfacet, |
b0f7b9b5 | 3593 | odp_actions->data, odp_actions->size, &stats); |
15baa734 | 3594 | subfacet_update_stats(subfacet, &stats); |
b0f7b9b5 | 3595 | } else { |
15baa734 | 3596 | subfacet_uninstall(subfacet); |
b0f7b9b5 | 3597 | } |
b95fc6ba BP |
3598 | |
3599 | if (!new_actions) { | |
3600 | new_actions = xcalloc(list_size(&facet->subfacets), | |
3601 | sizeof *new_actions); | |
3602 | } | |
3603 | new_actions[i].odp_actions = xmemdup(odp_actions->data, | |
3604 | odp_actions->size); | |
3605 | new_actions[i].actions_len = odp_actions->size; | |
abe529af | 3606 | } |
b95fc6ba BP |
3607 | |
3608 | ofpbuf_delete(odp_actions); | |
3609 | i++; | |
b0f7b9b5 | 3610 | } |
b95fc6ba | 3611 | if (new_actions) { |
15baa734 | 3612 | facet_flush_stats(facet); |
abe529af BP |
3613 | } |
3614 | ||
3615 | /* Update 'facet' now that we've taken care of all the old state. */ | |
3616 | facet->tags = ctx.tags; | |
3617 | facet->nf_flow.output_iface = ctx.nf_output_iface; | |
3618 | facet->may_install = ctx.may_set_up_flow; | |
75a75043 BP |
3619 | facet->has_learn = ctx.has_learn; |
3620 | facet->has_normal = ctx.has_normal; | |
0e553d9c | 3621 | facet->has_fin_timeout = ctx.has_fin_timeout; |
9d24de3b | 3622 | facet->mirrors = ctx.mirrors; |
b95fc6ba BP |
3623 | if (new_actions) { |
3624 | i = 0; | |
3625 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { | |
3626 | if (new_actions[i].odp_actions) { | |
3627 | free(subfacet->actions); | |
3628 | subfacet->actions = new_actions[i].odp_actions; | |
3629 | subfacet->actions_len = new_actions[i].actions_len; | |
3630 | } | |
3631 | i++; | |
3632 | } | |
3633 | free(new_actions); | |
abe529af BP |
3634 | } |
3635 | if (facet->rule != new_rule) { | |
3636 | COVERAGE_INC(facet_changed_rule); | |
3637 | list_remove(&facet->list_node); | |
3638 | list_push_back(&new_rule->facets, &facet->list_node); | |
3639 | facet->rule = new_rule; | |
3640 | facet->used = new_rule->up.created; | |
9d24de3b | 3641 | facet->prev_used = facet->used; |
abe529af BP |
3642 | } |
3643 | ||
abe529af BP |
3644 | return true; |
3645 | } | |
3646 | ||
3647 | /* Updates 'facet''s used time. Caller is responsible for calling | |
3648 | * facet_push_stats() to update the flows which 'facet' resubmits into. */ | |
3649 | static void | |
15baa734 | 3650 | facet_update_time(struct facet *facet, long long int used) |
abe529af | 3651 | { |
15baa734 | 3652 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
abe529af BP |
3653 | if (used > facet->used) { |
3654 | facet->used = used; | |
1745cd08 | 3655 | ofproto_rule_update_used(&facet->rule->up, used); |
abe529af BP |
3656 | netflow_flow_update_time(ofproto->netflow, &facet->nf_flow, used); |
3657 | } | |
3658 | } | |
3659 | ||
bbb5d219 EJ |
3660 | static void |
3661 | facet_reset_counters(struct facet *facet) | |
3662 | { | |
3663 | facet->packet_count = 0; | |
3664 | facet->byte_count = 0; | |
9d24de3b JP |
3665 | facet->prev_packet_count = 0; |
3666 | facet->prev_byte_count = 0; | |
bbb5d219 EJ |
3667 | facet->accounted_bytes = 0; |
3668 | } | |
3669 | ||
abe529af BP |
3670 | static void |
3671 | facet_push_stats(struct facet *facet) | |
3672 | { | |
9d24de3b | 3673 | uint64_t new_packets, new_bytes; |
abe529af | 3674 | |
9d24de3b JP |
3675 | assert(facet->packet_count >= facet->prev_packet_count); |
3676 | assert(facet->byte_count >= facet->prev_byte_count); | |
3677 | assert(facet->used >= facet->prev_used); | |
abe529af | 3678 | |
9d24de3b JP |
3679 | new_packets = facet->packet_count - facet->prev_packet_count; |
3680 | new_bytes = facet->byte_count - facet->prev_byte_count; | |
abe529af | 3681 | |
9d24de3b JP |
3682 | if (new_packets || new_bytes || facet->used > facet->prev_used) { |
3683 | facet->prev_packet_count = facet->packet_count; | |
3684 | facet->prev_byte_count = facet->byte_count; | |
3685 | facet->prev_used = facet->used; | |
abe529af BP |
3686 | |
3687 | flow_push_stats(facet->rule, &facet->flow, | |
9d24de3b JP |
3688 | new_packets, new_bytes, facet->used); |
3689 | ||
3690 | update_mirror_stats(ofproto_dpif_cast(facet->rule->up.ofproto), | |
3691 | facet->mirrors, new_packets, new_bytes); | |
abe529af BP |
3692 | } |
3693 | } | |
3694 | ||
3695 | struct ofproto_push { | |
3696 | struct action_xlate_ctx ctx; | |
3697 | uint64_t packets; | |
3698 | uint64_t bytes; | |
3699 | long long int used; | |
3700 | }; | |
3701 | ||
3702 | static void | |
3703 | push_resubmit(struct action_xlate_ctx *ctx, struct rule_dpif *rule) | |
3704 | { | |
3705 | struct ofproto_push *push = CONTAINER_OF(ctx, struct ofproto_push, ctx); | |
3706 | ||
3707 | if (rule) { | |
3708 | rule->packet_count += push->packets; | |
3709 | rule->byte_count += push->bytes; | |
1745cd08 | 3710 | ofproto_rule_update_used(&rule->up, push->used); |
abe529af BP |
3711 | } |
3712 | } | |
3713 | ||
3714 | /* Pushes flow statistics to the rules which 'flow' resubmits into given | |
9d24de3b | 3715 | * 'rule''s actions and mirrors. */ |
abe529af | 3716 | static void |
18b2a258 | 3717 | flow_push_stats(struct rule_dpif *rule, |
59d0f2c8 | 3718 | const struct flow *flow, uint64_t packets, uint64_t bytes, |
abe529af BP |
3719 | long long int used) |
3720 | { | |
3721 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
3722 | struct ofproto_push push; | |
3723 | ||
3724 | push.packets = packets; | |
3725 | push.bytes = bytes; | |
3726 | push.used = used; | |
3727 | ||
f3b50afb BP |
3728 | ofproto_rule_update_used(&rule->up, used); |
3729 | ||
18b2a258 | 3730 | action_xlate_ctx_init(&push.ctx, ofproto, flow, flow->vlan_tci, rule, |
0e553d9c | 3731 | 0, NULL); |
abe529af BP |
3732 | push.ctx.resubmit_hook = push_resubmit; |
3733 | ofpbuf_delete(xlate_actions(&push.ctx, | |
3734 | rule->up.actions, rule->up.n_actions)); | |
3735 | } | |
3736 | \f | |
b0f7b9b5 BP |
3737 | /* Subfacets. */ |
3738 | ||
3739 | static struct subfacet * | |
3740 | subfacet_find__(struct ofproto_dpif *ofproto, | |
3741 | const struct nlattr *key, size_t key_len, uint32_t key_hash, | |
3742 | const struct flow *flow) | |
3743 | { | |
3744 | struct subfacet *subfacet; | |
3745 | ||
3746 | HMAP_FOR_EACH_WITH_HASH (subfacet, hmap_node, key_hash, | |
3747 | &ofproto->subfacets) { | |
3748 | if (subfacet->key | |
3749 | ? (subfacet->key_len == key_len | |
3750 | && !memcmp(key, subfacet->key, key_len)) | |
3751 | : flow_equal(flow, &subfacet->facet->flow)) { | |
3752 | return subfacet; | |
3753 | } | |
3754 | } | |
3755 | ||
3756 | return NULL; | |
3757 | } | |
3758 | ||
3759 | /* Searches 'facet' (within 'ofproto') for a subfacet with the specified | |
3760 | * 'key_fitness', 'key', and 'key_len'. Returns the existing subfacet if | |
b95fc6ba BP |
3761 | * there is one, otherwise creates and returns a new subfacet. |
3762 | * | |
3763 | * If the returned subfacet is new, then subfacet->actions will be NULL, in | |
3764 | * which case the caller must populate the actions with | |
3765 | * subfacet_make_actions(). */ | |
b0f7b9b5 | 3766 | static struct subfacet * |
15baa734 | 3767 | subfacet_create(struct facet *facet, enum odp_key_fitness key_fitness, |
e84173dc | 3768 | const struct nlattr *key, size_t key_len, ovs_be16 initial_tci) |
b0f7b9b5 | 3769 | { |
15baa734 | 3770 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); |
b0f7b9b5 BP |
3771 | uint32_t key_hash = odp_flow_key_hash(key, key_len); |
3772 | struct subfacet *subfacet; | |
3773 | ||
3774 | subfacet = subfacet_find__(ofproto, key, key_len, key_hash, &facet->flow); | |
3775 | if (subfacet) { | |
3776 | if (subfacet->facet == facet) { | |
3777 | return subfacet; | |
3778 | } | |
3779 | ||
3780 | /* This shouldn't happen. */ | |
3781 | VLOG_ERR_RL(&rl, "subfacet with wrong facet"); | |
15baa734 | 3782 | subfacet_destroy(subfacet); |
b0f7b9b5 BP |
3783 | } |
3784 | ||
3785 | subfacet = xzalloc(sizeof *subfacet); | |
3786 | hmap_insert(&ofproto->subfacets, &subfacet->hmap_node, key_hash); | |
3787 | list_push_back(&facet->subfacets, &subfacet->list_node); | |
3788 | subfacet->facet = facet; | |
3789 | subfacet->used = time_msec(); | |
3790 | subfacet->key_fitness = key_fitness; | |
3791 | if (key_fitness != ODP_FIT_PERFECT) { | |
3792 | subfacet->key = xmemdup(key, key_len); | |
3793 | subfacet->key_len = key_len; | |
3794 | } | |
3795 | subfacet->installed = false; | |
e84173dc | 3796 | subfacet->initial_tci = initial_tci; |
b0f7b9b5 BP |
3797 | |
3798 | return subfacet; | |
3799 | } | |
3800 | ||
3801 | /* Searches 'ofproto' for a subfacet with the given 'key', 'key_len', and | |
3802 | * 'flow'. Returns the subfacet if one exists, otherwise NULL. */ | |
3803 | static struct subfacet * | |
3804 | subfacet_find(struct ofproto_dpif *ofproto, | |
6a542738 | 3805 | const struct nlattr *key, size_t key_len) |
b0f7b9b5 BP |
3806 | { |
3807 | uint32_t key_hash = odp_flow_key_hash(key, key_len); | |
6a542738 PS |
3808 | enum odp_key_fitness fitness; |
3809 | struct flow flow; | |
3810 | ||
3811 | fitness = odp_flow_key_to_flow(key, key_len, &flow); | |
3812 | if (fitness == ODP_FIT_ERROR) { | |
3813 | return NULL; | |
3814 | } | |
b0f7b9b5 | 3815 | |
6a542738 | 3816 | return subfacet_find__(ofproto, key, key_len, key_hash, &flow); |
b0f7b9b5 BP |
3817 | } |
3818 | ||
3819 | /* Uninstalls 'subfacet' from the datapath, if it is installed, removes it from | |
3820 | * its facet within 'ofproto', and frees it. */ | |
3821 | static void | |
15baa734 | 3822 | subfacet_destroy__(struct subfacet *subfacet) |
b0f7b9b5 | 3823 | { |
15baa734 BP |
3824 | struct facet *facet = subfacet->facet; |
3825 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
3826 | ||
3827 | subfacet_uninstall(subfacet); | |
b0f7b9b5 BP |
3828 | hmap_remove(&ofproto->subfacets, &subfacet->hmap_node); |
3829 | list_remove(&subfacet->list_node); | |
3830 | free(subfacet->key); | |
b95fc6ba | 3831 | free(subfacet->actions); |
b0f7b9b5 BP |
3832 | free(subfacet); |
3833 | } | |
3834 | ||
3835 | /* Destroys 'subfacet', as with subfacet_destroy__(), and then if this was the | |
3836 | * last remaining subfacet in its facet destroys the facet too. */ | |
3837 | static void | |
15baa734 | 3838 | subfacet_destroy(struct subfacet *subfacet) |
b0f7b9b5 BP |
3839 | { |
3840 | struct facet *facet = subfacet->facet; | |
3841 | ||
551a2f6c BP |
3842 | if (list_is_singleton(&facet->subfacets)) { |
3843 | /* facet_remove() needs at least one subfacet (it will remove it). */ | |
15baa734 | 3844 | facet_remove(facet); |
551a2f6c | 3845 | } else { |
15baa734 | 3846 | subfacet_destroy__(subfacet); |
b0f7b9b5 BP |
3847 | } |
3848 | } | |
3849 | ||
3850 | /* Initializes 'key' with the sequence of OVS_KEY_ATTR_* Netlink attributes | |
3851 | * that can be used to refer to 'subfacet'. The caller must provide 'keybuf' | |
3852 | * for use as temporary storage. */ | |
3853 | static void | |
3854 | subfacet_get_key(struct subfacet *subfacet, struct odputil_keybuf *keybuf, | |
3855 | struct ofpbuf *key) | |
3856 | { | |
3857 | if (!subfacet->key) { | |
3858 | ofpbuf_use_stack(key, keybuf, sizeof *keybuf); | |
3859 | odp_flow_key_from_flow(key, &subfacet->facet->flow); | |
3860 | } else { | |
3861 | ofpbuf_use_const(key, subfacet->key, subfacet->key_len); | |
3862 | } | |
3863 | } | |
3864 | ||
b95fc6ba BP |
3865 | /* Composes the datapath actions for 'subfacet' based on its rule's actions. */ |
3866 | static void | |
15baa734 | 3867 | subfacet_make_actions(struct subfacet *subfacet, const struct ofpbuf *packet) |
b95fc6ba BP |
3868 | { |
3869 | struct facet *facet = subfacet->facet; | |
18b2a258 | 3870 | struct rule_dpif *rule = facet->rule; |
15baa734 | 3871 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); |
b95fc6ba BP |
3872 | struct ofpbuf *odp_actions; |
3873 | struct action_xlate_ctx ctx; | |
3874 | ||
15baa734 | 3875 | action_xlate_ctx_init(&ctx, ofproto, &facet->flow, subfacet->initial_tci, |
0e553d9c | 3876 | rule, 0, packet); |
b95fc6ba BP |
3877 | odp_actions = xlate_actions(&ctx, rule->up.actions, rule->up.n_actions); |
3878 | facet->tags = ctx.tags; | |
3879 | facet->may_install = ctx.may_set_up_flow; | |
3880 | facet->has_learn = ctx.has_learn; | |
3881 | facet->has_normal = ctx.has_normal; | |
0e553d9c | 3882 | facet->has_fin_timeout = ctx.has_fin_timeout; |
b95fc6ba | 3883 | facet->nf_flow.output_iface = ctx.nf_output_iface; |
9d24de3b | 3884 | facet->mirrors = ctx.mirrors; |
b95fc6ba BP |
3885 | |
3886 | if (subfacet->actions_len != odp_actions->size | |
3887 | || memcmp(subfacet->actions, odp_actions->data, odp_actions->size)) { | |
3888 | free(subfacet->actions); | |
3889 | subfacet->actions_len = odp_actions->size; | |
3890 | subfacet->actions = xmemdup(odp_actions->data, odp_actions->size); | |
3891 | } | |
3892 | ||
3893 | ofpbuf_delete(odp_actions); | |
3894 | } | |
3895 | ||
b0f7b9b5 BP |
3896 | /* Updates 'subfacet''s datapath flow, setting its actions to 'actions_len' |
3897 | * bytes of actions in 'actions'. If 'stats' is non-null, statistics counters | |
3898 | * in the datapath will be zeroed and 'stats' will be updated with traffic new | |
3899 | * since 'subfacet' was last updated. | |
3900 | * | |
3901 | * Returns 0 if successful, otherwise a positive errno value. */ | |
3902 | static int | |
15baa734 | 3903 | subfacet_install(struct subfacet *subfacet, |
b0f7b9b5 BP |
3904 | const struct nlattr *actions, size_t actions_len, |
3905 | struct dpif_flow_stats *stats) | |
3906 | { | |
15baa734 BP |
3907 | struct facet *facet = subfacet->facet; |
3908 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(facet->rule->up.ofproto); | |
b0f7b9b5 BP |
3909 | struct odputil_keybuf keybuf; |
3910 | enum dpif_flow_put_flags flags; | |
3911 | struct ofpbuf key; | |
3912 | int ret; | |
3913 | ||
3914 | flags = DPIF_FP_CREATE | DPIF_FP_MODIFY; | |
3915 | if (stats) { | |
3916 | flags |= DPIF_FP_ZERO_STATS; | |
3917 | } | |
3918 | ||
3919 | subfacet_get_key(subfacet, &keybuf, &key); | |
3920 | ret = dpif_flow_put(ofproto->dpif, flags, key.data, key.size, | |
3921 | actions, actions_len, stats); | |
3922 | ||
3923 | if (stats) { | |
3924 | subfacet_reset_dp_stats(subfacet, stats); | |
3925 | } | |
3926 | ||
3927 | return ret; | |
3928 | } | |
3929 | ||
3930 | /* If 'subfacet' is installed in the datapath, uninstalls it. */ | |
3931 | static void | |
15baa734 | 3932 | subfacet_uninstall(struct subfacet *subfacet) |
b0f7b9b5 BP |
3933 | { |
3934 | if (subfacet->installed) { | |
15baa734 BP |
3935 | struct rule_dpif *rule = subfacet->facet->rule; |
3936 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
b0f7b9b5 BP |
3937 | struct odputil_keybuf keybuf; |
3938 | struct dpif_flow_stats stats; | |
3939 | struct ofpbuf key; | |
3940 | int error; | |
3941 | ||
3942 | subfacet_get_key(subfacet, &keybuf, &key); | |
15baa734 | 3943 | error = dpif_flow_del(ofproto->dpif, key.data, key.size, &stats); |
b0f7b9b5 BP |
3944 | subfacet_reset_dp_stats(subfacet, &stats); |
3945 | if (!error) { | |
15baa734 | 3946 | subfacet_update_stats(subfacet, &stats); |
b0f7b9b5 BP |
3947 | } |
3948 | subfacet->installed = false; | |
3949 | } else { | |
3950 | assert(subfacet->dp_packet_count == 0); | |
3951 | assert(subfacet->dp_byte_count == 0); | |
3952 | } | |
3953 | } | |
3954 | ||
3955 | /* Resets 'subfacet''s datapath statistics counters. This should be called | |
3956 | * when 'subfacet''s statistics are cleared in the datapath. If 'stats' is | |
3957 | * non-null, it should contain the statistics returned by dpif when 'subfacet' | |
3958 | * was reset in the datapath. 'stats' will be modified to include only | |
3959 | * statistics new since 'subfacet' was last updated. */ | |
3960 | static void | |
3961 | subfacet_reset_dp_stats(struct subfacet *subfacet, | |
3962 | struct dpif_flow_stats *stats) | |
3963 | { | |
3964 | if (stats | |
3965 | && subfacet->dp_packet_count <= stats->n_packets | |
3966 | && subfacet->dp_byte_count <= stats->n_bytes) { | |
3967 | stats->n_packets -= subfacet->dp_packet_count; | |
3968 | stats->n_bytes -= subfacet->dp_byte_count; | |
3969 | } | |
3970 | ||
3971 | subfacet->dp_packet_count = 0; | |
3972 | subfacet->dp_byte_count = 0; | |
3973 | } | |
3974 | ||
3975 | /* Updates 'subfacet''s used time. The caller is responsible for calling | |
3976 | * facet_push_stats() to update the flows which 'subfacet' resubmits into. */ | |
3977 | static void | |
15baa734 | 3978 | subfacet_update_time(struct subfacet *subfacet, long long int used) |
b0f7b9b5 BP |
3979 | { |
3980 | if (used > subfacet->used) { | |
3981 | subfacet->used = used; | |
15baa734 | 3982 | facet_update_time(subfacet->facet, used); |
b0f7b9b5 BP |
3983 | } |
3984 | } | |
3985 | ||
3986 | /* Folds the statistics from 'stats' into the counters in 'subfacet'. | |
3987 | * | |
3988 | * Because of the meaning of a subfacet's counters, it only makes sense to do | |
3989 | * this if 'stats' are not tracked in the datapath, that is, if 'stats' | |
3990 | * represents a packet that was sent by hand or if it represents statistics | |
3991 | * that have been cleared out of the datapath. */ | |
3992 | static void | |
15baa734 | 3993 | subfacet_update_stats(struct subfacet *subfacet, |
b0f7b9b5 BP |
3994 | const struct dpif_flow_stats *stats) |
3995 | { | |
3996 | if (stats->n_packets || stats->used > subfacet->used) { | |
3997 | struct facet *facet = subfacet->facet; | |
3998 | ||
15baa734 | 3999 | subfacet_update_time(subfacet, stats->used); |
b0f7b9b5 BP |
4000 | facet->packet_count += stats->n_packets; |
4001 | facet->byte_count += stats->n_bytes; | |
0e553d9c | 4002 | facet->tcp_flags |= stats->tcp_flags; |
b0f7b9b5 BP |
4003 | facet_push_stats(facet); |
4004 | netflow_flow_update_flags(&facet->nf_flow, stats->tcp_flags); | |
4005 | } | |
4006 | } | |
4007 | \f | |
abe529af BP |
4008 | /* Rules. */ |
4009 | ||
4010 | static struct rule_dpif * | |
29901626 BP |
4011 | rule_dpif_lookup(struct ofproto_dpif *ofproto, const struct flow *flow, |
4012 | uint8_t table_id) | |
abe529af | 4013 | { |
7257b535 BP |
4014 | struct cls_rule *cls_rule; |
4015 | struct classifier *cls; | |
4016 | ||
9cdaaebe BP |
4017 | if (table_id >= N_TABLES) { |
4018 | return NULL; | |
4019 | } | |
4020 | ||
d0918789 | 4021 | cls = &ofproto->up.tables[table_id].cls; |
eadef313 | 4022 | if (flow->nw_frag & FLOW_NW_FRAG_ANY |
7257b535 BP |
4023 | && ofproto->up.frag_handling == OFPC_FRAG_NORMAL) { |
4024 | /* For OFPC_NORMAL frag_handling, we must pretend that transport ports | |
4025 | * are unavailable. */ | |
4026 | struct flow ofpc_normal_flow = *flow; | |
4027 | ofpc_normal_flow.tp_src = htons(0); | |
4028 | ofpc_normal_flow.tp_dst = htons(0); | |
4029 | cls_rule = classifier_lookup(cls, &ofpc_normal_flow); | |
4030 | } else { | |
4031 | cls_rule = classifier_lookup(cls, flow); | |
4032 | } | |
4033 | return rule_dpif_cast(rule_from_cls_rule(cls_rule)); | |
abe529af BP |
4034 | } |
4035 | ||
7ee20df1 BP |
4036 | static void |
4037 | complete_operation(struct rule_dpif *rule) | |
4038 | { | |
4039 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
4040 | ||
54a9cbc9 | 4041 | rule_invalidate(rule); |
7ee20df1 BP |
4042 | if (clogged) { |
4043 | struct dpif_completion *c = xmalloc(sizeof *c); | |
4044 | c->op = rule->up.pending; | |
4045 | list_push_back(&ofproto->completions, &c->list_node); | |
4046 | } else { | |
4047 | ofoperation_complete(rule->up.pending, 0); | |
4048 | } | |
4049 | } | |
4050 | ||
abe529af BP |
4051 | static struct rule * |
4052 | rule_alloc(void) | |
4053 | { | |
4054 | struct rule_dpif *rule = xmalloc(sizeof *rule); | |
4055 | return &rule->up; | |
4056 | } | |
4057 | ||
4058 | static void | |
4059 | rule_dealloc(struct rule *rule_) | |
4060 | { | |
4061 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
4062 | free(rule); | |
4063 | } | |
4064 | ||
90bf1e07 | 4065 | static enum ofperr |
abe529af BP |
4066 | rule_construct(struct rule *rule_) |
4067 | { | |
4068 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
4069 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
7ee20df1 | 4070 | struct rule_dpif *victim; |
54a9cbc9 | 4071 | uint8_t table_id; |
90bf1e07 | 4072 | enum ofperr error; |
5bf0e941 BP |
4073 | |
4074 | error = validate_actions(rule->up.actions, rule->up.n_actions, | |
4075 | &rule->up.cr.flow, ofproto->max_ports); | |
4076 | if (error) { | |
4077 | return error; | |
4078 | } | |
abe529af | 4079 | |
abe529af BP |
4080 | rule->packet_count = 0; |
4081 | rule->byte_count = 0; | |
abe529af | 4082 | |
7ee20df1 BP |
4083 | victim = rule_dpif_cast(ofoperation_get_victim(rule->up.pending)); |
4084 | if (victim && !list_is_empty(&victim->facets)) { | |
4085 | struct facet *facet; | |
4086 | ||
4087 | rule->facets = victim->facets; | |
4088 | list_moved(&rule->facets); | |
4089 | LIST_FOR_EACH (facet, list_node, &rule->facets) { | |
bbb5d219 EJ |
4090 | /* XXX: We're only clearing our local counters here. It's possible |
4091 | * that quite a few packets are unaccounted for in the datapath | |
4092 | * statistics. These will be accounted to the new rule instead of | |
4093 | * cleared as required. This could be fixed by clearing out the | |
4094 | * datapath statistics for this facet, but currently it doesn't | |
4095 | * seem worth it. */ | |
4096 | facet_reset_counters(facet); | |
7ee20df1 BP |
4097 | facet->rule = rule; |
4098 | } | |
4099 | } else { | |
4100 | /* Must avoid list_moved() in this case. */ | |
4101 | list_init(&rule->facets); | |
4102 | } | |
abe529af | 4103 | |
54a9cbc9 BP |
4104 | table_id = rule->up.table_id; |
4105 | rule->tag = (victim ? victim->tag | |
4106 | : table_id == 0 ? 0 | |
4107 | : rule_calculate_tag(&rule->up.cr.flow, &rule->up.cr.wc, | |
4108 | ofproto->tables[table_id].basis)); | |
4109 | ||
7ee20df1 | 4110 | complete_operation(rule); |
abe529af BP |
4111 | return 0; |
4112 | } | |
4113 | ||
4114 | static void | |
4115 | rule_destruct(struct rule *rule_) | |
4116 | { | |
4117 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
abe529af BP |
4118 | struct facet *facet, *next_facet; |
4119 | ||
abe529af | 4120 | LIST_FOR_EACH_SAFE (facet, next_facet, list_node, &rule->facets) { |
15baa734 | 4121 | facet_revalidate(facet); |
abe529af | 4122 | } |
7ee20df1 BP |
4123 | |
4124 | complete_operation(rule); | |
abe529af BP |
4125 | } |
4126 | ||
4127 | static void | |
4128 | rule_get_stats(struct rule *rule_, uint64_t *packets, uint64_t *bytes) | |
4129 | { | |
4130 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
4131 | struct facet *facet; | |
4132 | ||
4133 | /* Start from historical data for 'rule' itself that are no longer tracked | |
4134 | * in facets. This counts, for example, facets that have expired. */ | |
4135 | *packets = rule->packet_count; | |
4136 | *bytes = rule->byte_count; | |
4137 | ||
4138 | /* Add any statistics that are tracked by facets. This includes | |
4139 | * statistical data recently updated by ofproto_update_stats() as well as | |
4140 | * stats for packets that were executed "by hand" via dpif_execute(). */ | |
4141 | LIST_FOR_EACH (facet, list_node, &rule->facets) { | |
4142 | *packets += facet->packet_count; | |
4143 | *bytes += facet->byte_count; | |
4144 | } | |
4145 | } | |
4146 | ||
90bf1e07 | 4147 | static enum ofperr |
59d0f2c8 BP |
4148 | rule_execute(struct rule *rule_, const struct flow *flow, |
4149 | struct ofpbuf *packet) | |
abe529af BP |
4150 | { |
4151 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
4152 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
4153 | struct action_xlate_ctx ctx; | |
4154 | struct ofpbuf *odp_actions; | |
abe529af BP |
4155 | size_t size; |
4156 | ||
54834960 | 4157 | action_xlate_ctx_init(&ctx, ofproto, flow, flow->vlan_tci, |
0e553d9c | 4158 | rule, packet_get_tcp_flags(packet, flow), packet); |
abe529af BP |
4159 | odp_actions = xlate_actions(&ctx, rule->up.actions, rule->up.n_actions); |
4160 | size = packet->size; | |
4161 | if (execute_odp_actions(ofproto, flow, odp_actions->data, | |
4162 | odp_actions->size, packet)) { | |
abe529af BP |
4163 | rule->packet_count++; |
4164 | rule->byte_count += size; | |
f3b50afb | 4165 | flow_push_stats(rule, flow, 1, size, time_msec()); |
abe529af BP |
4166 | } |
4167 | ofpbuf_delete(odp_actions); | |
5bf0e941 BP |
4168 | |
4169 | return 0; | |
abe529af BP |
4170 | } |
4171 | ||
7ee20df1 BP |
4172 | static void |
4173 | rule_modify_actions(struct rule *rule_) | |
abe529af BP |
4174 | { |
4175 | struct rule_dpif *rule = rule_dpif_cast(rule_); | |
4176 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
90bf1e07 | 4177 | enum ofperr error; |
abe529af | 4178 | |
7ee20df1 BP |
4179 | error = validate_actions(rule->up.actions, rule->up.n_actions, |
4180 | &rule->up.cr.flow, ofproto->max_ports); | |
4181 | if (error) { | |
4182 | ofoperation_complete(rule->up.pending, error); | |
4183 | return; | |
abe529af | 4184 | } |
7ee20df1 BP |
4185 | |
4186 | complete_operation(rule); | |
abe529af BP |
4187 | } |
4188 | \f | |
97d6520b | 4189 | /* Sends 'packet' out 'ofport'. |
52a90c29 | 4190 | * May modify 'packet'. |
abe529af BP |
4191 | * Returns 0 if successful, otherwise a positive errno value. */ |
4192 | static int | |
52a90c29 | 4193 | send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet) |
abe529af | 4194 | { |
97d6520b | 4195 | const struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto); |
80e5eed9 BP |
4196 | struct ofpbuf key, odp_actions; |
4197 | struct odputil_keybuf keybuf; | |
52a90c29 | 4198 | uint16_t odp_port; |
80e5eed9 | 4199 | struct flow flow; |
abe529af BP |
4200 | int error; |
4201 | ||
abff858b | 4202 | flow_extract((struct ofpbuf *) packet, 0, 0, 0, &flow); |
52a90c29 BP |
4203 | odp_port = vsp_realdev_to_vlandev(ofproto, ofport->odp_port, |
4204 | flow.vlan_tci); | |
4205 | if (odp_port != ofport->odp_port) { | |
4206 | eth_pop_vlan(packet); | |
4207 | flow.vlan_tci = htons(0); | |
4208 | } | |
4209 | ||
80e5eed9 BP |
4210 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); |
4211 | odp_flow_key_from_flow(&key, &flow); | |
4212 | ||
abe529af | 4213 | ofpbuf_init(&odp_actions, 32); |
6ff686f2 PS |
4214 | compose_sflow_action(ofproto, &odp_actions, &flow, odp_port); |
4215 | ||
df2c07f4 | 4216 | nl_msg_put_u32(&odp_actions, OVS_ACTION_ATTR_OUTPUT, odp_port); |
80e5eed9 BP |
4217 | error = dpif_execute(ofproto->dpif, |
4218 | key.data, key.size, | |
4219 | odp_actions.data, odp_actions.size, | |
abe529af BP |
4220 | packet); |
4221 | ofpbuf_uninit(&odp_actions); | |
4222 | ||
4223 | if (error) { | |
4224 | VLOG_WARN_RL(&rl, "%s: failed to send packet on port %"PRIu32" (%s)", | |
4225 | ofproto->up.name, odp_port, strerror(error)); | |
4226 | } | |
6527c598 | 4227 | ofproto_update_local_port_stats(ofport->up.ofproto, packet->size, 0); |
abe529af BP |
4228 | return error; |
4229 | } | |
4230 | \f | |
df2c07f4 | 4231 | /* OpenFlow to datapath action translation. */ |
abe529af BP |
4232 | |
4233 | static void do_xlate_actions(const union ofp_action *in, size_t n_in, | |
4234 | struct action_xlate_ctx *ctx); | |
4cd78906 | 4235 | static void xlate_normal(struct action_xlate_ctx *); |
abe529af | 4236 | |
98403001 BP |
4237 | static size_t |
4238 | put_userspace_action(const struct ofproto_dpif *ofproto, | |
4239 | struct ofpbuf *odp_actions, | |
4240 | const struct flow *flow, | |
4241 | const struct user_action_cookie *cookie) | |
4242 | { | |
98403001 BP |
4243 | uint32_t pid; |
4244 | ||
4245 | pid = dpif_port_get_pid(ofproto->dpif, | |
4246 | ofp_port_to_odp_port(flow->in_port)); | |
4247 | ||
39db78a0 | 4248 | return odp_put_userspace_action(pid, cookie, odp_actions); |
98403001 BP |
4249 | } |
4250 | ||
6ff686f2 PS |
4251 | /* Compose SAMPLE action for sFlow. */ |
4252 | static size_t | |
4253 | compose_sflow_action(const struct ofproto_dpif *ofproto, | |
4254 | struct ofpbuf *odp_actions, | |
4255 | const struct flow *flow, | |
4256 | uint32_t odp_port) | |
4257 | { | |
4258 | uint32_t port_ifindex; | |
4259 | uint32_t probability; | |
98403001 | 4260 | struct user_action_cookie cookie; |
6ff686f2 | 4261 | size_t sample_offset, actions_offset; |
98403001 | 4262 | int cookie_offset, n_output; |
6ff686f2 PS |
4263 | |
4264 | if (!ofproto->sflow || flow->in_port == OFPP_NONE) { | |
4265 | return 0; | |
4266 | } | |
4267 | ||
4268 | if (odp_port == OVSP_NONE) { | |
4269 | port_ifindex = 0; | |
4270 | n_output = 0; | |
4271 | } else { | |
4272 | port_ifindex = dpif_sflow_odp_port_to_ifindex(ofproto->sflow, odp_port); | |
4273 | n_output = 1; | |
4274 | } | |
4275 | ||
4276 | sample_offset = nl_msg_start_nested(odp_actions, OVS_ACTION_ATTR_SAMPLE); | |
4277 | ||
4278 | /* Number of packets out of UINT_MAX to sample. */ | |
4279 | probability = dpif_sflow_get_probability(ofproto->sflow); | |
4280 | nl_msg_put_u32(odp_actions, OVS_SAMPLE_ATTR_PROBABILITY, probability); | |
4281 | ||
4282 | actions_offset = nl_msg_start_nested(odp_actions, OVS_SAMPLE_ATTR_ACTIONS); | |
4283 | ||
98403001 BP |
4284 | cookie.type = USER_ACTION_COOKIE_SFLOW; |
4285 | cookie.data = port_ifindex; | |
4286 | cookie.n_output = n_output; | |
4287 | cookie.vlan_tci = 0; | |
4288 | cookie_offset = put_userspace_action(ofproto, odp_actions, flow, &cookie); | |
6ff686f2 PS |
4289 | |
4290 | nl_msg_end_nested(odp_actions, actions_offset); | |
4291 | nl_msg_end_nested(odp_actions, sample_offset); | |
98403001 | 4292 | return cookie_offset; |
6ff686f2 PS |
4293 | } |
4294 | ||
4295 | /* SAMPLE action must be first action in any given list of actions. | |
4296 | * At this point we do not have all information required to build it. So try to | |
4297 | * build sample action as complete as possible. */ | |
4298 | static void | |
4299 | add_sflow_action(struct action_xlate_ctx *ctx) | |
4300 | { | |
4301 | ctx->user_cookie_offset = compose_sflow_action(ctx->ofproto, | |
4302 | ctx->odp_actions, | |
4303 | &ctx->flow, OVSP_NONE); | |
4304 | ctx->sflow_odp_port = 0; | |
4305 | ctx->sflow_n_outputs = 0; | |
4306 | } | |
4307 | ||
4308 | /* Fix SAMPLE action according to data collected while composing ODP actions. | |
4309 | * We need to fix SAMPLE actions OVS_SAMPLE_ATTR_ACTIONS attribute, i.e. nested | |
4310 | * USERSPACE action's user-cookie which is required for sflow. */ | |
4311 | static void | |
4312 | fix_sflow_action(struct action_xlate_ctx *ctx) | |
4313 | { | |
4314 | const struct flow *base = &ctx->base_flow; | |
4315 | struct user_action_cookie *cookie; | |
4316 | ||
4317 | if (!ctx->user_cookie_offset) { | |
4318 | return; | |
4319 | } | |
4320 | ||
4321 | cookie = ofpbuf_at(ctx->odp_actions, ctx->user_cookie_offset, | |
4322 | sizeof(*cookie)); | |
4323 | assert(cookie != NULL); | |
4324 | assert(cookie->type == USER_ACTION_COOKIE_SFLOW); | |
4325 | ||
4326 | if (ctx->sflow_n_outputs) { | |
4327 | cookie->data = dpif_sflow_odp_port_to_ifindex(ctx->ofproto->sflow, | |
4328 | ctx->sflow_odp_port); | |
4329 | } | |
4330 | if (ctx->sflow_n_outputs >= 255) { | |
4331 | cookie->n_output = 255; | |
4332 | } else { | |
4333 | cookie->n_output = ctx->sflow_n_outputs; | |
4334 | } | |
4335 | cookie->vlan_tci = base->vlan_tci; | |
4336 | } | |
4337 | ||
6ff686f2 | 4338 | static void |
81b1afb1 EJ |
4339 | compose_output_action__(struct action_xlate_ctx *ctx, uint16_t ofp_port, |
4340 | bool check_stp) | |
6ff686f2 | 4341 | { |
d59906fb | 4342 | const struct ofport_dpif *ofport = get_ofp_port(ctx->ofproto, ofp_port); |
5e48dc2b | 4343 | uint16_t odp_port = ofp_port_to_odp_port(ofp_port); |
52a90c29 | 4344 | ovs_be16 flow_vlan_tci = ctx->flow.vlan_tci; |
8b36f51e | 4345 | uint8_t flow_nw_tos = ctx->flow.nw_tos; |
52a90c29 | 4346 | uint16_t out_port; |
d59906fb | 4347 | |
81b1afb1 | 4348 | if (ofport) { |
8b36f51e EJ |
4349 | struct priority_to_dscp *pdscp; |
4350 | ||
9e1fd49b | 4351 | if (ofport->up.pp.config & OFPUTIL_PC_NO_FWD |
81b1afb1 EJ |
4352 | || (check_stp && !stp_forward_in_state(ofport->stp_state))) { |
4353 | return; | |
4354 | } | |
8b36f51e | 4355 | |
deedf7e7 | 4356 | pdscp = get_priority(ofport, ctx->flow.skb_priority); |
8b36f51e EJ |
4357 | if (pdscp) { |
4358 | ctx->flow.nw_tos &= ~IP_DSCP_MASK; | |
4359 | ctx->flow.nw_tos |= pdscp->dscp; | |
4360 | } | |
81b1afb1 EJ |
4361 | } else { |
4362 | /* We may not have an ofport record for this port, but it doesn't hurt | |
4363 | * to allow forwarding to it anyhow. Maybe such a port will appear | |
4364 | * later and we're pre-populating the flow table. */ | |
d59906fb EJ |
4365 | } |
4366 | ||
52a90c29 BP |
4367 | out_port = vsp_realdev_to_vlandev(ctx->ofproto, odp_port, |
4368 | ctx->flow.vlan_tci); | |
4369 | if (out_port != odp_port) { | |
4370 | ctx->flow.vlan_tci = htons(0); | |
4371 | } | |
5bbda0aa | 4372 | commit_odp_actions(&ctx->flow, &ctx->base_flow, ctx->odp_actions); |
52a90c29 BP |
4373 | nl_msg_put_u32(ctx->odp_actions, OVS_ACTION_ATTR_OUTPUT, out_port); |
4374 | ||
6ff686f2 PS |
4375 | ctx->sflow_odp_port = odp_port; |
4376 | ctx->sflow_n_outputs++; | |
81b1afb1 | 4377 | ctx->nf_output_iface = ofp_port; |
52a90c29 | 4378 | ctx->flow.vlan_tci = flow_vlan_tci; |
8b36f51e | 4379 | ctx->flow.nw_tos = flow_nw_tos; |
6ff686f2 PS |
4380 | } |
4381 | ||
abe529af | 4382 | static void |
5e48dc2b | 4383 | compose_output_action(struct action_xlate_ctx *ctx, uint16_t ofp_port) |
abe529af | 4384 | { |
81b1afb1 | 4385 | compose_output_action__(ctx, ofp_port, true); |
abe529af BP |
4386 | } |
4387 | ||
4388 | static void | |
29901626 BP |
4389 | xlate_table_action(struct action_xlate_ctx *ctx, |
4390 | uint16_t in_port, uint8_t table_id) | |
abe529af BP |
4391 | { |
4392 | if (ctx->recurse < MAX_RESUBMIT_RECURSION) { | |
54a9cbc9 | 4393 | struct ofproto_dpif *ofproto = ctx->ofproto; |
abe529af BP |
4394 | struct rule_dpif *rule; |
4395 | uint16_t old_in_port; | |
29901626 BP |
4396 | uint8_t old_table_id; |
4397 | ||
4398 | old_table_id = ctx->table_id; | |
4399 | ctx->table_id = table_id; | |
abe529af | 4400 | |
54a9cbc9 | 4401 | /* Look up a flow with 'in_port' as the input port. */ |
abe529af BP |
4402 | old_in_port = ctx->flow.in_port; |
4403 | ctx->flow.in_port = in_port; | |
54a9cbc9 BP |
4404 | rule = rule_dpif_lookup(ofproto, &ctx->flow, table_id); |
4405 | ||
4406 | /* Tag the flow. */ | |
4407 | if (table_id > 0 && table_id < N_TABLES) { | |
4408 | struct table_dpif *table = &ofproto->tables[table_id]; | |
4409 | if (table->other_table) { | |
4410 | ctx->tags |= (rule | |
4411 | ? rule->tag | |
4412 | : rule_calculate_tag(&ctx->flow, | |
4413 | &table->other_table->wc, | |
4414 | table->basis)); | |
4415 | } | |
4416 | } | |
4417 | ||
4418 | /* Restore the original input port. Otherwise OFPP_NORMAL and | |
4419 | * OFPP_IN_PORT will have surprising behavior. */ | |
abe529af BP |
4420 | ctx->flow.in_port = old_in_port; |
4421 | ||
4422 | if (ctx->resubmit_hook) { | |
4423 | ctx->resubmit_hook(ctx, rule); | |
4424 | } | |
4425 | ||
4426 | if (rule) { | |
18b2a258 | 4427 | struct rule_dpif *old_rule = ctx->rule; |
54834960 | 4428 | |
abe529af | 4429 | ctx->recurse++; |
18b2a258 | 4430 | ctx->rule = rule; |
abe529af | 4431 | do_xlate_actions(rule->up.actions, rule->up.n_actions, ctx); |
18b2a258 | 4432 | ctx->rule = old_rule; |
abe529af BP |
4433 | ctx->recurse--; |
4434 | } | |
29901626 BP |
4435 | |
4436 | ctx->table_id = old_table_id; | |
abe529af BP |
4437 | } else { |
4438 | static struct vlog_rate_limit recurse_rl = VLOG_RATE_LIMIT_INIT(1, 1); | |
4439 | ||
29901626 | 4440 | VLOG_ERR_RL(&recurse_rl, "resubmit actions recursed over %d times", |
abe529af | 4441 | MAX_RESUBMIT_RECURSION); |
6a6455e5 | 4442 | ctx->max_resubmit_trigger = true; |
abe529af BP |
4443 | } |
4444 | } | |
4445 | ||
29901626 BP |
4446 | static void |
4447 | xlate_resubmit_table(struct action_xlate_ctx *ctx, | |
4448 | const struct nx_action_resubmit *nar) | |
4449 | { | |
4450 | uint16_t in_port; | |
4451 | uint8_t table_id; | |
4452 | ||
4453 | in_port = (nar->in_port == htons(OFPP_IN_PORT) | |
4454 | ? ctx->flow.in_port | |
4455 | : ntohs(nar->in_port)); | |
4456 | table_id = nar->table == 255 ? ctx->table_id : nar->table; | |
4457 | ||
4458 | xlate_table_action(ctx, in_port, table_id); | |
4459 | } | |
4460 | ||
abe529af | 4461 | static void |
d59906fb | 4462 | flood_packets(struct action_xlate_ctx *ctx, bool all) |
abe529af BP |
4463 | { |
4464 | struct ofport_dpif *ofport; | |
4465 | ||
b3e9b2ed | 4466 | HMAP_FOR_EACH (ofport, up.hmap_node, &ctx->ofproto->up.ports) { |
abe529af | 4467 | uint16_t ofp_port = ofport->up.ofp_port; |
d59906fb EJ |
4468 | |
4469 | if (ofp_port == ctx->flow.in_port) { | |
4470 | continue; | |
4471 | } | |
4472 | ||
5e48dc2b | 4473 | if (all) { |
81b1afb1 | 4474 | compose_output_action__(ctx, ofp_port, false); |
9e1fd49b | 4475 | } else if (!(ofport->up.pp.config & OFPUTIL_PC_NO_FLOOD)) { |
5e48dc2b | 4476 | compose_output_action(ctx, ofp_port); |
abe529af BP |
4477 | } |
4478 | } | |
b3e9b2ed EJ |
4479 | |
4480 | ctx->nf_output_iface = NF_OUT_FLOOD; | |
abe529af BP |
4481 | } |
4482 | ||
6ff686f2 | 4483 | static void |
f0fd1a17 | 4484 | execute_controller_action(struct action_xlate_ctx *ctx, int len, |
a7349929 BP |
4485 | enum ofp_packet_in_reason reason, |
4486 | uint16_t controller_id) | |
6ff686f2 | 4487 | { |
999fba59 EJ |
4488 | struct ofputil_packet_in pin; |
4489 | struct ofpbuf *packet; | |
6ff686f2 | 4490 | |
999fba59 EJ |
4491 | ctx->may_set_up_flow = false; |
4492 | if (!ctx->packet) { | |
4493 | return; | |
4494 | } | |
4495 | ||
4496 | packet = ofpbuf_clone(ctx->packet); | |
4497 | ||
4498 | if (packet->l2 && packet->l3) { | |
4499 | struct eth_header *eh; | |
4500 | ||
4501 | eth_pop_vlan(packet); | |
4502 | eh = packet->l2; | |
4503 | assert(eh->eth_type == ctx->flow.dl_type); | |
4504 | memcpy(eh->eth_src, ctx->flow.dl_src, sizeof eh->eth_src); | |
4505 | memcpy(eh->eth_dst, ctx->flow.dl_dst, sizeof eh->eth_dst); | |
4506 | ||
4507 | if (ctx->flow.vlan_tci & htons(VLAN_CFI)) { | |
4508 | eth_push_vlan(packet, ctx->flow.vlan_tci); | |
4509 | } | |
4510 | ||
4511 | if (packet->l4) { | |
4512 | if (ctx->flow.dl_type == htons(ETH_TYPE_IP)) { | |
4513 | packet_set_ipv4(packet, ctx->flow.nw_src, ctx->flow.nw_dst, | |
4514 | ctx->flow.nw_tos, ctx->flow.nw_ttl); | |
4515 | } | |
4516 | ||
4517 | if (packet->l7) { | |
4518 | if (ctx->flow.nw_proto == IPPROTO_TCP) { | |
4519 | packet_set_tcp_port(packet, ctx->flow.tp_src, | |
4520 | ctx->flow.tp_dst); | |
4521 | } else if (ctx->flow.nw_proto == IPPROTO_UDP) { | |
4522 | packet_set_udp_port(packet, ctx->flow.tp_src, | |
4523 | ctx->flow.tp_dst); | |
4524 | } | |
4525 | } | |
4526 | } | |
4527 | } | |
4528 | ||
4529 | pin.packet = packet->data; | |
4530 | pin.packet_len = packet->size; | |
f0fd1a17 | 4531 | pin.reason = reason; |
a7349929 | 4532 | pin.controller_id = controller_id; |
54834960 | 4533 | pin.table_id = ctx->table_id; |
18b2a258 | 4534 | pin.cookie = ctx->rule ? ctx->rule->up.flow_cookie : 0; |
54834960 | 4535 | |
999fba59 | 4536 | pin.send_len = len; |
999fba59 EJ |
4537 | flow_get_metadata(&ctx->flow, &pin.fmd); |
4538 | ||
d8653c38 | 4539 | connmgr_send_packet_in(ctx->ofproto->up.connmgr, &pin); |
999fba59 | 4540 | ofpbuf_delete(packet); |
6ff686f2 PS |
4541 | } |
4542 | ||
f0fd1a17 PS |
4543 | static bool |
4544 | compose_dec_ttl(struct action_xlate_ctx *ctx) | |
4545 | { | |
4546 | if (ctx->flow.dl_type != htons(ETH_TYPE_IP) && | |
4547 | ctx->flow.dl_type != htons(ETH_TYPE_IPV6)) { | |
4548 | return false; | |
4549 | } | |
4550 | ||
4551 | if (ctx->flow.nw_ttl > 1) { | |
4552 | ctx->flow.nw_ttl--; | |
4553 | return false; | |
4554 | } else { | |
a7349929 | 4555 | execute_controller_action(ctx, UINT16_MAX, OFPR_INVALID_TTL, 0); |
f0fd1a17 PS |
4556 | |
4557 | /* Stop processing for current table. */ | |
4558 | return true; | |
4559 | } | |
4560 | } | |
4561 | ||
abe529af BP |
4562 | static void |
4563 | xlate_output_action__(struct action_xlate_ctx *ctx, | |
4564 | uint16_t port, uint16_t max_len) | |
4565 | { | |
4566 | uint16_t prev_nf_output_iface = ctx->nf_output_iface; | |
4567 | ||
4568 | ctx->nf_output_iface = NF_OUT_DROP; | |
4569 | ||
4570 | switch (port) { | |
4571 | case OFPP_IN_PORT: | |
81b1afb1 | 4572 | compose_output_action(ctx, ctx->flow.in_port); |
abe529af BP |
4573 | break; |
4574 | case OFPP_TABLE: | |
29901626 | 4575 | xlate_table_action(ctx, ctx->flow.in_port, ctx->table_id); |
abe529af BP |
4576 | break; |
4577 | case OFPP_NORMAL: | |
4578 | xlate_normal(ctx); | |
4579 | break; | |
4580 | case OFPP_FLOOD: | |
d59906fb | 4581 | flood_packets(ctx, false); |
abe529af BP |
4582 | break; |
4583 | case OFPP_ALL: | |
d59906fb | 4584 | flood_packets(ctx, true); |
abe529af BP |
4585 | break; |
4586 | case OFPP_CONTROLLER: | |
a7349929 | 4587 | execute_controller_action(ctx, max_len, OFPR_ACTION, 0); |
abe529af | 4588 | break; |
e81d2933 EJ |
4589 | case OFPP_NONE: |
4590 | break; | |
a0fbe94a | 4591 | case OFPP_LOCAL: |
abe529af BP |
4592 | default: |
4593 | if (port != ctx->flow.in_port) { | |
81b1afb1 | 4594 | compose_output_action(ctx, port); |
abe529af BP |
4595 | } |
4596 | break; | |
4597 | } | |
4598 | ||
4599 | if (prev_nf_output_iface == NF_OUT_FLOOD) { | |
4600 | ctx->nf_output_iface = NF_OUT_FLOOD; | |
4601 | } else if (ctx->nf_output_iface == NF_OUT_DROP) { | |
4602 | ctx->nf_output_iface = prev_nf_output_iface; | |
4603 | } else if (prev_nf_output_iface != NF_OUT_DROP && | |
4604 | ctx->nf_output_iface != NF_OUT_FLOOD) { | |
4605 | ctx->nf_output_iface = NF_OUT_MULTI; | |
4606 | } | |
4607 | } | |
4608 | ||
f694937d EJ |
4609 | static void |
4610 | xlate_output_reg_action(struct action_xlate_ctx *ctx, | |
4611 | const struct nx_action_output_reg *naor) | |
4612 | { | |
816fd533 | 4613 | struct mf_subfield src; |
f694937d EJ |
4614 | uint64_t ofp_port; |
4615 | ||
816fd533 BP |
4616 | nxm_decode(&src, naor->src, naor->ofs_nbits); |
4617 | ofp_port = mf_get_subfield(&src, &ctx->flow); | |
f694937d EJ |
4618 | |
4619 | if (ofp_port <= UINT16_MAX) { | |
4620 | xlate_output_action__(ctx, ofp_port, ntohs(naor->max_len)); | |
4621 | } | |
4622 | } | |
4623 | ||
abe529af BP |
4624 | static void |
4625 | xlate_output_action(struct action_xlate_ctx *ctx, | |
4626 | const struct ofp_action_output *oao) | |
4627 | { | |
4628 | xlate_output_action__(ctx, ntohs(oao->port), ntohs(oao->max_len)); | |
4629 | } | |
4630 | ||
abe529af BP |
4631 | static void |
4632 | xlate_enqueue_action(struct action_xlate_ctx *ctx, | |
4633 | const struct ofp_action_enqueue *oae) | |
4634 | { | |
e479e41e | 4635 | uint16_t ofp_port; |
abff858b | 4636 | uint32_t flow_priority, priority; |
abe529af BP |
4637 | int error; |
4638 | ||
4639 | error = dpif_queue_to_priority(ctx->ofproto->dpif, ntohl(oae->queue_id), | |
4640 | &priority); | |
4641 | if (error) { | |
4642 | /* Fall back to ordinary output action. */ | |
4643 | xlate_output_action__(ctx, ntohs(oae->port), 0); | |
4644 | return; | |
4645 | } | |
4646 | ||
df2c07f4 | 4647 | /* Figure out datapath output port. */ |
abe529af BP |
4648 | ofp_port = ntohs(oae->port); |
4649 | if (ofp_port == OFPP_IN_PORT) { | |
4650 | ofp_port = ctx->flow.in_port; | |
8ba855c1 BP |
4651 | } else if (ofp_port == ctx->flow.in_port) { |
4652 | return; | |
abe529af | 4653 | } |
abe529af | 4654 | |
df2c07f4 | 4655 | /* Add datapath actions. */ |
deedf7e7 BP |
4656 | flow_priority = ctx->flow.skb_priority; |
4657 | ctx->flow.skb_priority = priority; | |
81b1afb1 | 4658 | compose_output_action(ctx, ofp_port); |
deedf7e7 | 4659 | ctx->flow.skb_priority = flow_priority; |
abe529af BP |
4660 | |
4661 | /* Update NetFlow output port. */ | |
4662 | if (ctx->nf_output_iface == NF_OUT_DROP) { | |
4b23aebf | 4663 | ctx->nf_output_iface = ofp_port; |
abe529af BP |
4664 | } else if (ctx->nf_output_iface != NF_OUT_FLOOD) { |
4665 | ctx->nf_output_iface = NF_OUT_MULTI; | |
4666 | } | |
4667 | } | |
4668 | ||
4669 | static void | |
4670 | xlate_set_queue_action(struct action_xlate_ctx *ctx, | |
4671 | const struct nx_action_set_queue *nasq) | |
4672 | { | |
4673 | uint32_t priority; | |
4674 | int error; | |
4675 | ||
4676 | error = dpif_queue_to_priority(ctx->ofproto->dpif, ntohl(nasq->queue_id), | |
4677 | &priority); | |
4678 | if (error) { | |
4679 | /* Couldn't translate queue to a priority, so ignore. A warning | |
4680 | * has already been logged. */ | |
4681 | return; | |
4682 | } | |
4683 | ||
deedf7e7 | 4684 | ctx->flow.skb_priority = priority; |
abe529af BP |
4685 | } |
4686 | ||
4687 | struct xlate_reg_state { | |
4688 | ovs_be16 vlan_tci; | |
4689 | ovs_be64 tun_id; | |
4690 | }; | |
4691 | ||
abe529af BP |
4692 | static void |
4693 | xlate_autopath(struct action_xlate_ctx *ctx, | |
4694 | const struct nx_action_autopath *naa) | |
4695 | { | |
4696 | uint16_t ofp_port = ntohl(naa->id); | |
4697 | struct ofport_dpif *port = get_ofp_port(ctx->ofproto, ofp_port); | |
4698 | ||
4699 | if (!port || !port->bundle) { | |
4700 | ofp_port = OFPP_NONE; | |
4701 | } else if (port->bundle->bond) { | |
4702 | /* Autopath does not support VLAN hashing. */ | |
4703 | struct ofport_dpif *slave = bond_choose_output_slave( | |
dc155bff | 4704 | port->bundle->bond, &ctx->flow, 0, &ctx->tags); |
abe529af BP |
4705 | if (slave) { |
4706 | ofp_port = slave->up.ofp_port; | |
4707 | } | |
4708 | } | |
4709 | autopath_execute(naa, &ctx->flow, ofp_port); | |
4710 | } | |
4711 | ||
daff3353 EJ |
4712 | static bool |
4713 | slave_enabled_cb(uint16_t ofp_port, void *ofproto_) | |
4714 | { | |
4715 | struct ofproto_dpif *ofproto = ofproto_; | |
4716 | struct ofport_dpif *port; | |
4717 | ||
4718 | switch (ofp_port) { | |
4719 | case OFPP_IN_PORT: | |
4720 | case OFPP_TABLE: | |
4721 | case OFPP_NORMAL: | |
4722 | case OFPP_FLOOD: | |
4723 | case OFPP_ALL: | |
439e4d8c | 4724 | case OFPP_NONE: |
daff3353 EJ |
4725 | return true; |
4726 | case OFPP_CONTROLLER: /* Not supported by the bundle action. */ | |
4727 | return false; | |
4728 | default: | |
4729 | port = get_ofp_port(ofproto, ofp_port); | |
4730 | return port ? port->may_enable : false; | |
4731 | } | |
4732 | } | |
4733 | ||
75a75043 BP |
4734 | static void |
4735 | xlate_learn_action(struct action_xlate_ctx *ctx, | |
4736 | const struct nx_action_learn *learn) | |
4737 | { | |
4738 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 1); | |
4739 | struct ofputil_flow_mod fm; | |
4740 | int error; | |
4741 | ||
4742 | learn_execute(learn, &ctx->flow, &fm); | |
4743 | ||
4744 | error = ofproto_flow_mod(&ctx->ofproto->up, &fm); | |
4745 | if (error && !VLOG_DROP_WARN(&rl)) { | |
90bf1e07 BP |
4746 | VLOG_WARN("learning action failed to modify flow table (%s)", |
4747 | ofperr_get_name(error)); | |
75a75043 BP |
4748 | } |
4749 | ||
4750 | free(fm.actions); | |
4751 | } | |
4752 | ||
0e553d9c BP |
4753 | /* Reduces '*timeout' to no more than 'max'. A value of zero in either case |
4754 | * means "infinite". */ | |
4755 | static void | |
4756 | reduce_timeout(uint16_t max, uint16_t *timeout) | |
4757 | { | |
4758 | if (max && (!*timeout || *timeout > max)) { | |
4759 | *timeout = max; | |
4760 | } | |
4761 | } | |
4762 | ||
4763 | static void | |
4764 | xlate_fin_timeout(struct action_xlate_ctx *ctx, | |
4765 | const struct nx_action_fin_timeout *naft) | |
4766 | { | |
4767 | if (ctx->tcp_flags & (TCP_FIN | TCP_RST) && ctx->rule) { | |
4768 | struct rule_dpif *rule = ctx->rule; | |
4769 | ||
4770 | reduce_timeout(ntohs(naft->fin_idle_timeout), &rule->up.idle_timeout); | |
4771 | reduce_timeout(ntohs(naft->fin_hard_timeout), &rule->up.hard_timeout); | |
4772 | } | |
4773 | } | |
4774 | ||
21f7563c JP |
4775 | static bool |
4776 | may_receive(const struct ofport_dpif *port, struct action_xlate_ctx *ctx) | |
4777 | { | |
9e1fd49b BP |
4778 | if (port->up.pp.config & (eth_addr_equals(ctx->flow.dl_dst, eth_addr_stp) |
4779 | ? OFPUTIL_PC_NO_RECV_STP | |
4780 | : OFPUTIL_PC_NO_RECV)) { | |
21f7563c JP |
4781 | return false; |
4782 | } | |
4783 | ||
4784 | /* Only drop packets here if both forwarding and learning are | |
4785 | * disabled. If just learning is enabled, we need to have | |
4786 | * OFPP_NORMAL and the learning action have a look at the packet | |
4787 | * before we can drop it. */ | |
4788 | if (!stp_forward_in_state(port->stp_state) | |
4789 | && !stp_learn_in_state(port->stp_state)) { | |
4790 | return false; | |
4791 | } | |
4792 | ||
4793 | return true; | |
4794 | } | |
4795 | ||
abe529af BP |
4796 | static void |
4797 | do_xlate_actions(const union ofp_action *in, size_t n_in, | |
4798 | struct action_xlate_ctx *ctx) | |
4799 | { | |
4800 | const struct ofport_dpif *port; | |
abe529af | 4801 | const union ofp_action *ia; |
254750ce | 4802 | bool was_evictable = true; |
b4b8c781 | 4803 | size_t left; |
abe529af BP |
4804 | |
4805 | port = get_ofp_port(ctx->ofproto, ctx->flow.in_port); | |
21f7563c | 4806 | if (port && !may_receive(port, ctx)) { |
abe529af BP |
4807 | /* Drop this flow. */ |
4808 | return; | |
4809 | } | |
4810 | ||
254750ce BP |
4811 | if (ctx->rule) { |
4812 | /* Don't let the rule we're working on get evicted underneath us. */ | |
4813 | was_evictable = ctx->rule->up.evictable; | |
4814 | ctx->rule->up.evictable = false; | |
4815 | } | |
b4b8c781 | 4816 | OFPUTIL_ACTION_FOR_EACH_UNSAFE (ia, left, in, n_in) { |
abe529af | 4817 | const struct ofp_action_dl_addr *oada; |
38f2e360 BP |
4818 | const struct nx_action_resubmit *nar; |
4819 | const struct nx_action_set_tunnel *nast; | |
4820 | const struct nx_action_set_queue *nasq; | |
4821 | const struct nx_action_multipath *nam; | |
4822 | const struct nx_action_autopath *naa; | |
daff3353 | 4823 | const struct nx_action_bundle *nab; |
f694937d | 4824 | const struct nx_action_output_reg *naor; |
a7349929 | 4825 | const struct nx_action_controller *nac; |
38f2e360 BP |
4826 | enum ofputil_action_code code; |
4827 | ovs_be64 tun_id; | |
4828 | ||
848e8809 EJ |
4829 | if (ctx->exit) { |
4830 | break; | |
4831 | } | |
4832 | ||
38f2e360 BP |
4833 | code = ofputil_decode_action_unsafe(ia); |
4834 | switch (code) { | |
08f94c0e | 4835 | case OFPUTIL_OFPAT10_OUTPUT: |
abe529af BP |
4836 | xlate_output_action(ctx, &ia->output); |
4837 | break; | |
4838 | ||
08f94c0e | 4839 | case OFPUTIL_OFPAT10_SET_VLAN_VID: |
abe529af BP |
4840 | ctx->flow.vlan_tci &= ~htons(VLAN_VID_MASK); |
4841 | ctx->flow.vlan_tci |= ia->vlan_vid.vlan_vid | htons(VLAN_CFI); | |
abe529af BP |
4842 | break; |
4843 | ||
08f94c0e | 4844 | case OFPUTIL_OFPAT10_SET_VLAN_PCP: |
abe529af BP |
4845 | ctx->flow.vlan_tci &= ~htons(VLAN_PCP_MASK); |
4846 | ctx->flow.vlan_tci |= htons( | |
4847 | (ia->vlan_pcp.vlan_pcp << VLAN_PCP_SHIFT) | VLAN_CFI); | |
abe529af BP |
4848 | break; |
4849 | ||
08f94c0e | 4850 | case OFPUTIL_OFPAT10_STRIP_VLAN: |
abe529af | 4851 | ctx->flow.vlan_tci = htons(0); |
abe529af BP |
4852 | break; |
4853 | ||
08f94c0e | 4854 | case OFPUTIL_OFPAT10_SET_DL_SRC: |
abe529af | 4855 | oada = ((struct ofp_action_dl_addr *) ia); |
abe529af BP |
4856 | memcpy(ctx->flow.dl_src, oada->dl_addr, ETH_ADDR_LEN); |
4857 | break; | |
4858 | ||
08f94c0e | 4859 | case OFPUTIL_OFPAT10_SET_DL_DST: |
abe529af | 4860 | oada = ((struct ofp_action_dl_addr *) ia); |
abe529af BP |
4861 | memcpy(ctx->flow.dl_dst, oada->dl_addr, ETH_ADDR_LEN); |
4862 | break; | |
4863 | ||
08f94c0e | 4864 | case OFPUTIL_OFPAT10_SET_NW_SRC: |
abe529af BP |
4865 | ctx->flow.nw_src = ia->nw_addr.nw_addr; |
4866 | break; | |
4867 | ||
08f94c0e | 4868 | case OFPUTIL_OFPAT10_SET_NW_DST: |
abe529af BP |
4869 | ctx->flow.nw_dst = ia->nw_addr.nw_addr; |
4870 | break; | |
4871 | ||
08f94c0e | 4872 | case OFPUTIL_OFPAT10_SET_NW_TOS: |
c4f2731d PS |
4873 | /* OpenFlow 1.0 only supports IPv4. */ |
4874 | if (ctx->flow.dl_type == htons(ETH_TYPE_IP)) { | |
4875 | ctx->flow.nw_tos &= ~IP_DSCP_MASK; | |
4876 | ctx->flow.nw_tos |= ia->nw_tos.nw_tos & IP_DSCP_MASK; | |
4877 | } | |
abe529af BP |
4878 | break; |
4879 | ||
08f94c0e | 4880 | case OFPUTIL_OFPAT10_SET_TP_SRC: |
abe529af BP |
4881 | ctx->flow.tp_src = ia->tp_port.tp_port; |
4882 | break; | |
4883 | ||
08f94c0e | 4884 | case OFPUTIL_OFPAT10_SET_TP_DST: |
abe529af BP |
4885 | ctx->flow.tp_dst = ia->tp_port.tp_port; |
4886 | break; | |
4887 | ||
08f94c0e | 4888 | case OFPUTIL_OFPAT10_ENQUEUE: |
38f2e360 BP |
4889 | xlate_enqueue_action(ctx, (const struct ofp_action_enqueue *) ia); |
4890 | break; | |
4891 | ||
4892 | case OFPUTIL_NXAST_RESUBMIT: | |
4893 | nar = (const struct nx_action_resubmit *) ia; | |
29901626 BP |
4894 | xlate_table_action(ctx, ntohs(nar->in_port), ctx->table_id); |
4895 | break; | |
4896 | ||
4897 | case OFPUTIL_NXAST_RESUBMIT_TABLE: | |
4898 | xlate_resubmit_table(ctx, (const struct nx_action_resubmit *) ia); | |
abe529af BP |
4899 | break; |
4900 | ||
38f2e360 BP |
4901 | case OFPUTIL_NXAST_SET_TUNNEL: |
4902 | nast = (const struct nx_action_set_tunnel *) ia; | |
4903 | tun_id = htonll(ntohl(nast->tun_id)); | |
4904 | ctx->flow.tun_id = tun_id; | |
4905 | break; | |
4906 | ||
4907 | case OFPUTIL_NXAST_SET_QUEUE: | |
4908 | nasq = (const struct nx_action_set_queue *) ia; | |
4909 | xlate_set_queue_action(ctx, nasq); | |
4910 | break; | |
4911 | ||
4912 | case OFPUTIL_NXAST_POP_QUEUE: | |
deedf7e7 | 4913 | ctx->flow.skb_priority = ctx->orig_skb_priority; |
38f2e360 BP |
4914 | break; |
4915 | ||
4916 | case OFPUTIL_NXAST_REG_MOVE: | |
4917 | nxm_execute_reg_move((const struct nx_action_reg_move *) ia, | |
4918 | &ctx->flow); | |
4919 | break; | |
4920 | ||
4921 | case OFPUTIL_NXAST_REG_LOAD: | |
4922 | nxm_execute_reg_load((const struct nx_action_reg_load *) ia, | |
4923 | &ctx->flow); | |
4924 | break; | |
4925 | ||
4926 | case OFPUTIL_NXAST_NOTE: | |
4927 | /* Nothing to do. */ | |
4928 | break; | |
4929 | ||
4930 | case OFPUTIL_NXAST_SET_TUNNEL64: | |
4931 | tun_id = ((const struct nx_action_set_tunnel64 *) ia)->tun_id; | |
4932 | ctx->flow.tun_id = tun_id; | |
4933 | break; | |
4934 | ||
4935 | case OFPUTIL_NXAST_MULTIPATH: | |
4936 | nam = (const struct nx_action_multipath *) ia; | |
4937 | multipath_execute(nam, &ctx->flow); | |
abe529af BP |
4938 | break; |
4939 | ||
38f2e360 BP |
4940 | case OFPUTIL_NXAST_AUTOPATH: |
4941 | naa = (const struct nx_action_autopath *) ia; | |
4942 | xlate_autopath(ctx, naa); | |
abe529af | 4943 | break; |
daff3353 EJ |
4944 | |
4945 | case OFPUTIL_NXAST_BUNDLE: | |
4946 | ctx->ofproto->has_bundle_action = true; | |
4947 | nab = (const struct nx_action_bundle *) ia; | |
4948 | xlate_output_action__(ctx, bundle_execute(nab, &ctx->flow, | |
4949 | slave_enabled_cb, | |
4950 | ctx->ofproto), 0); | |
4951 | break; | |
a368bb53 EJ |
4952 | |
4953 | case OFPUTIL_NXAST_BUNDLE_LOAD: | |
4954 | ctx->ofproto->has_bundle_action = true; | |
4955 | nab = (const struct nx_action_bundle *) ia; | |
4956 | bundle_execute_load(nab, &ctx->flow, slave_enabled_cb, | |
4957 | ctx->ofproto); | |
4958 | break; | |
f694937d EJ |
4959 | |
4960 | case OFPUTIL_NXAST_OUTPUT_REG: | |
4961 | naor = (const struct nx_action_output_reg *) ia; | |
4962 | xlate_output_reg_action(ctx, naor); | |
4963 | break; | |
75a75043 BP |
4964 | |
4965 | case OFPUTIL_NXAST_LEARN: | |
4966 | ctx->has_learn = true; | |
4967 | if (ctx->may_learn) { | |
4968 | xlate_learn_action(ctx, (const struct nx_action_learn *) ia); | |
4969 | } | |
4970 | break; | |
848e8809 | 4971 | |
f0fd1a17 PS |
4972 | case OFPUTIL_NXAST_DEC_TTL: |
4973 | if (compose_dec_ttl(ctx)) { | |
4974 | goto out; | |
4975 | } | |
4976 | break; | |
4977 | ||
848e8809 EJ |
4978 | case OFPUTIL_NXAST_EXIT: |
4979 | ctx->exit = true; | |
4980 | break; | |
0e553d9c BP |
4981 | |
4982 | case OFPUTIL_NXAST_FIN_TIMEOUT: | |
4983 | ctx->has_fin_timeout = true; | |
4984 | xlate_fin_timeout(ctx, (const struct nx_action_fin_timeout *) ia); | |
4985 | break; | |
a7349929 BP |
4986 | |
4987 | case OFPUTIL_NXAST_CONTROLLER: | |
4988 | nac = (const struct nx_action_controller *) ia; | |
4989 | execute_controller_action(ctx, ntohs(nac->max_len), nac->reason, | |
4990 | ntohs(nac->controller_id)); | |
4991 | break; | |
abe529af BP |
4992 | } |
4993 | } | |
21f7563c | 4994 | |
f0fd1a17 | 4995 | out: |
21f7563c JP |
4996 | /* We've let OFPP_NORMAL and the learning action look at the packet, |
4997 | * so drop it now if forwarding is disabled. */ | |
4998 | if (port && !stp_forward_in_state(port->stp_state)) { | |
4999 | ofpbuf_clear(ctx->odp_actions); | |
5000 | add_sflow_action(ctx); | |
5001 | } | |
254750ce BP |
5002 | if (ctx->rule) { |
5003 | ctx->rule->up.evictable = was_evictable; | |
5004 | } | |
abe529af BP |
5005 | } |
5006 | ||
5007 | static void | |
5008 | action_xlate_ctx_init(struct action_xlate_ctx *ctx, | |
5009 | struct ofproto_dpif *ofproto, const struct flow *flow, | |
18b2a258 | 5010 | ovs_be16 initial_tci, struct rule_dpif *rule, |
0e553d9c | 5011 | uint8_t tcp_flags, const struct ofpbuf *packet) |
abe529af BP |
5012 | { |
5013 | ctx->ofproto = ofproto; | |
5014 | ctx->flow = *flow; | |
e84173dc BP |
5015 | ctx->base_flow = ctx->flow; |
5016 | ctx->base_flow.tun_id = 0; | |
5017 | ctx->base_flow.vlan_tci = initial_tci; | |
18b2a258 | 5018 | ctx->rule = rule; |
abe529af | 5019 | ctx->packet = packet; |
75a75043 | 5020 | ctx->may_learn = packet != NULL; |
0e553d9c | 5021 | ctx->tcp_flags = tcp_flags; |
abe529af | 5022 | ctx->resubmit_hook = NULL; |
abe529af BP |
5023 | } |
5024 | ||
5025 | static struct ofpbuf * | |
5026 | xlate_actions(struct action_xlate_ctx *ctx, | |
5027 | const union ofp_action *in, size_t n_in) | |
5028 | { | |
c06bba01 JP |
5029 | struct flow orig_flow = ctx->flow; |
5030 | ||
abe529af BP |
5031 | COVERAGE_INC(ofproto_dpif_xlate); |
5032 | ||
5033 | ctx->odp_actions = ofpbuf_new(512); | |
b6848f13 | 5034 | ofpbuf_reserve(ctx->odp_actions, NL_A_U32_SIZE); |
97e42c92 BP |
5035 | ctx->tags = 0; |
5036 | ctx->may_set_up_flow = true; | |
5037 | ctx->has_learn = false; | |
5038 | ctx->has_normal = false; | |
0e553d9c | 5039 | ctx->has_fin_timeout = false; |
97e42c92 | 5040 | ctx->nf_output_iface = NF_OUT_DROP; |
9d24de3b | 5041 | ctx->mirrors = 0; |
97e42c92 | 5042 | ctx->recurse = 0; |
6a6455e5 | 5043 | ctx->max_resubmit_trigger = false; |
deedf7e7 | 5044 | ctx->orig_skb_priority = ctx->flow.skb_priority; |
97e42c92 | 5045 | ctx->table_id = 0; |
848e8809 | 5046 | ctx->exit = false; |
7257b535 | 5047 | |
eadef313 | 5048 | if (ctx->flow.nw_frag & FLOW_NW_FRAG_ANY) { |
7257b535 BP |
5049 | switch (ctx->ofproto->up.frag_handling) { |
5050 | case OFPC_FRAG_NORMAL: | |
5051 | /* We must pretend that transport ports are unavailable. */ | |
97e42c92 BP |
5052 | ctx->flow.tp_src = ctx->base_flow.tp_src = htons(0); |
5053 | ctx->flow.tp_dst = ctx->base_flow.tp_dst = htons(0); | |
7257b535 BP |
5054 | break; |
5055 | ||
5056 | case OFPC_FRAG_DROP: | |
5057 | return ctx->odp_actions; | |
5058 | ||
5059 | case OFPC_FRAG_REASM: | |
5060 | NOT_REACHED(); | |
5061 | ||
5062 | case OFPC_FRAG_NX_MATCH: | |
5063 | /* Nothing to do. */ | |
5064 | break; | |
f0fd1a17 PS |
5065 | |
5066 | case OFPC_INVALID_TTL_TO_CONTROLLER: | |
5067 | NOT_REACHED(); | |
7257b535 BP |
5068 | } |
5069 | } | |
5070 | ||
fc08b7a2 | 5071 | if (process_special(ctx->ofproto, &ctx->flow, ctx->packet)) { |
abe529af | 5072 | ctx->may_set_up_flow = false; |
b6848f13 | 5073 | return ctx->odp_actions; |
abe529af | 5074 | } else { |
6a6455e5 EJ |
5075 | static struct vlog_rate_limit trace_rl = VLOG_RATE_LIMIT_INIT(1, 1); |
5076 | struct flow original_flow = ctx->flow; | |
5077 | ovs_be16 initial_tci = ctx->base_flow.vlan_tci; | |
5078 | ||
6ff686f2 | 5079 | add_sflow_action(ctx); |
abe529af | 5080 | do_xlate_actions(in, n_in, ctx); |
abe529af | 5081 | |
6a6455e5 EJ |
5082 | if (ctx->max_resubmit_trigger && !ctx->resubmit_hook |
5083 | && !VLOG_DROP_ERR(&trace_rl)) { | |
5084 | struct ds ds = DS_EMPTY_INITIALIZER; | |
5085 | ||
5086 | ofproto_trace(ctx->ofproto, &original_flow, ctx->packet, | |
5087 | initial_tci, &ds); | |
5088 | VLOG_ERR("Trace triggered by excessive resubmit recursion:\n%s", | |
5089 | ds_cstr(&ds)); | |
5090 | ds_destroy(&ds); | |
5091 | } | |
5092 | ||
b6848f13 BP |
5093 | if (!connmgr_may_set_up_flow(ctx->ofproto->up.connmgr, &ctx->flow, |
5094 | ctx->odp_actions->data, | |
5095 | ctx->odp_actions->size)) { | |
5096 | ctx->may_set_up_flow = false; | |
5097 | if (ctx->packet | |
5098 | && connmgr_msg_in_hook(ctx->ofproto->up.connmgr, &ctx->flow, | |
5099 | ctx->packet)) { | |
5e48dc2b | 5100 | compose_output_action(ctx, OFPP_LOCAL); |
b6848f13 BP |
5101 | } |
5102 | } | |
c06bba01 | 5103 | add_mirror_actions(ctx, &orig_flow); |
a7c4eaf6 | 5104 | fix_sflow_action(ctx); |
abe529af BP |
5105 | } |
5106 | ||
5107 | return ctx->odp_actions; | |
5108 | } | |
5109 | \f | |
5110 | /* OFPP_NORMAL implementation. */ | |
5111 | ||
abe529af BP |
5112 | static struct ofport_dpif *ofbundle_get_a_port(const struct ofbundle *); |
5113 | ||
ecac4ebf BP |
5114 | /* Given 'vid', the VID obtained from the 802.1Q header that was received as |
5115 | * part of a packet (specify 0 if there was no 802.1Q header), and 'in_bundle', | |
5116 | * the bundle on which the packet was received, returns the VLAN to which the | |
5117 | * packet belongs. | |
5118 | * | |
5119 | * Both 'vid' and the return value are in the range 0...4095. */ | |
5120 | static uint16_t | |
5121 | input_vid_to_vlan(const struct ofbundle *in_bundle, uint16_t vid) | |
5122 | { | |
5123 | switch (in_bundle->vlan_mode) { | |
5124 | case PORT_VLAN_ACCESS: | |
5125 | return in_bundle->vlan; | |
5126 | break; | |
5127 | ||
5128 | case PORT_VLAN_TRUNK: | |
5129 | return vid; | |
5130 | ||
5131 | case PORT_VLAN_NATIVE_UNTAGGED: | |
5132 | case PORT_VLAN_NATIVE_TAGGED: | |
5133 | return vid ? vid : in_bundle->vlan; | |
5134 | ||
5135 | default: | |
5136 | NOT_REACHED(); | |
5137 | } | |
5138 | } | |
5139 | ||
5da5ec37 BP |
5140 | /* Checks whether a packet with the given 'vid' may ingress on 'in_bundle'. |
5141 | * If so, returns true. Otherwise, returns false and, if 'warn' is true, logs | |
5142 | * a warning. | |
5143 | * | |
5144 | * 'vid' should be the VID obtained from the 802.1Q header that was received as | |
5145 | * part of a packet (specify 0 if there was no 802.1Q header), in the range | |
5146 | * 0...4095. */ | |
5147 | static bool | |
5148 | input_vid_is_valid(uint16_t vid, struct ofbundle *in_bundle, bool warn) | |
5149 | { | |
33158a18 JP |
5150 | /* Allow any VID on the OFPP_NONE port. */ |
5151 | if (in_bundle == &ofpp_none_bundle) { | |
5152 | return true; | |
5153 | } | |
5154 | ||
5da5ec37 BP |
5155 | switch (in_bundle->vlan_mode) { |
5156 | case PORT_VLAN_ACCESS: | |
5157 | if (vid) { | |
5158 | if (warn) { | |
5159 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
5160 | VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %"PRIu16" tagged " | |
5161 | "packet received on port %s configured as VLAN " | |
5162 | "%"PRIu16" access port", | |
5163 | in_bundle->ofproto->up.name, vid, | |
5164 | in_bundle->name, in_bundle->vlan); | |
5165 | } | |
5166 | return false; | |
5167 | } | |
5168 | return true; | |
5169 | ||
5170 | case PORT_VLAN_NATIVE_UNTAGGED: | |
5171 | case PORT_VLAN_NATIVE_TAGGED: | |
5172 | if (!vid) { | |
5173 | /* Port must always carry its native VLAN. */ | |
5174 | return true; | |
5175 | } | |
5176 | /* Fall through. */ | |
5177 | case PORT_VLAN_TRUNK: | |
5178 | if (!ofbundle_includes_vlan(in_bundle, vid)) { | |
5179 | if (warn) { | |
5180 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
5181 | VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %"PRIu16" packet " | |
5182 | "received on port %s not configured for trunking " | |
5183 | "VLAN %"PRIu16, | |
5184 | in_bundle->ofproto->up.name, vid, | |
5185 | in_bundle->name, vid); | |
5186 | } | |
5187 | return false; | |
5188 | } | |
5189 | return true; | |
5190 | ||
5191 | default: | |
5192 | NOT_REACHED(); | |
5193 | } | |
5194 | ||
5195 | } | |
5196 | ||
ecac4ebf BP |
5197 | /* Given 'vlan', the VLAN that a packet belongs to, and |
5198 | * 'out_bundle', a bundle on which the packet is to be output, returns the VID | |
5199 | * that should be included in the 802.1Q header. (If the return value is 0, | |
5200 | * then the 802.1Q header should only be included in the packet if there is a | |
5201 | * nonzero PCP.) | |
5202 | * | |
5203 | * Both 'vlan' and the return value are in the range 0...4095. */ | |
5204 | static uint16_t | |
5205 | output_vlan_to_vid(const struct ofbundle *out_bundle, uint16_t vlan) | |
5206 | { | |
5207 | switch (out_bundle->vlan_mode) { | |
5208 | case PORT_VLAN_ACCESS: | |
5209 | return 0; | |
5210 | ||
5211 | case PORT_VLAN_TRUNK: | |
5212 | case PORT_VLAN_NATIVE_TAGGED: | |
5213 | return vlan; | |
5214 | ||
5215 | case PORT_VLAN_NATIVE_UNTAGGED: | |
5216 | return vlan == out_bundle->vlan ? 0 : vlan; | |
5217 | ||
5218 | default: | |
5219 | NOT_REACHED(); | |
5220 | } | |
5221 | } | |
5222 | ||
395e68ce BP |
5223 | static void |
5224 | output_normal(struct action_xlate_ctx *ctx, const struct ofbundle *out_bundle, | |
5225 | uint16_t vlan) | |
abe529af | 5226 | { |
395e68ce BP |
5227 | struct ofport_dpif *port; |
5228 | uint16_t vid; | |
81b1afb1 | 5229 | ovs_be16 tci, old_tci; |
ecac4ebf | 5230 | |
395e68ce BP |
5231 | vid = output_vlan_to_vid(out_bundle, vlan); |
5232 | if (!out_bundle->bond) { | |
5233 | port = ofbundle_get_a_port(out_bundle); | |
5234 | } else { | |
5235 | port = bond_choose_output_slave(out_bundle->bond, &ctx->flow, | |
5236 | vid, &ctx->tags); | |
5237 | if (!port) { | |
5238 | /* No slaves enabled, so drop packet. */ | |
5239 | return; | |
5240 | } | |
5241 | } | |
abe529af | 5242 | |
81b1afb1 | 5243 | old_tci = ctx->flow.vlan_tci; |
5e9ceccd BP |
5244 | tci = htons(vid); |
5245 | if (tci || out_bundle->use_priority_tags) { | |
5246 | tci |= ctx->flow.vlan_tci & htons(VLAN_PCP_MASK); | |
5247 | if (tci) { | |
5248 | tci |= htons(VLAN_CFI); | |
5249 | } | |
395e68ce | 5250 | } |
81b1afb1 | 5251 | ctx->flow.vlan_tci = tci; |
395e68ce | 5252 | |
5e48dc2b | 5253 | compose_output_action(ctx, port->up.ofp_port); |
81b1afb1 | 5254 | ctx->flow.vlan_tci = old_tci; |
abe529af BP |
5255 | } |
5256 | ||
5257 | static int | |
5258 | mirror_mask_ffs(mirror_mask_t mask) | |
5259 | { | |
5260 | BUILD_ASSERT_DECL(sizeof(unsigned int) >= sizeof(mask)); | |
5261 | return ffs(mask); | |
5262 | } | |
5263 | ||
abe529af BP |
5264 | static bool |
5265 | ofbundle_trunks_vlan(const struct ofbundle *bundle, uint16_t vlan) | |
5266 | { | |
ecac4ebf | 5267 | return (bundle->vlan_mode != PORT_VLAN_ACCESS |
fc3d7408 | 5268 | && (!bundle->trunks || bitmap_is_set(bundle->trunks, vlan))); |
abe529af BP |
5269 | } |
5270 | ||
5271 | static bool | |
5272 | ofbundle_includes_vlan(const struct ofbundle *bundle, uint16_t vlan) | |
5273 | { | |
5274 | return vlan == bundle->vlan || ofbundle_trunks_vlan(bundle, vlan); | |
5275 | } | |
5276 | ||
5277 | /* Returns an arbitrary interface within 'bundle'. */ | |
5278 | static struct ofport_dpif * | |
5279 | ofbundle_get_a_port(const struct ofbundle *bundle) | |
5280 | { | |
5281 | return CONTAINER_OF(list_front(&bundle->ports), | |
5282 | struct ofport_dpif, bundle_node); | |
5283 | } | |
5284 | ||
abe529af BP |
5285 | static bool |
5286 | vlan_is_mirrored(const struct ofmirror *m, int vlan) | |
5287 | { | |
fc3d7408 | 5288 | return !m->vlans || bitmap_is_set(m->vlans, vlan); |
abe529af BP |
5289 | } |
5290 | ||
07817dfe BP |
5291 | /* Returns true if a packet with Ethernet destination MAC 'dst' may be mirrored |
5292 | * to a VLAN. In general most packets may be mirrored but we want to drop | |
5293 | * protocols that may confuse switches. */ | |
5294 | static bool | |
5295 | eth_dst_may_rspan(const uint8_t dst[ETH_ADDR_LEN]) | |
5296 | { | |
5297 | /* If you change this function's behavior, please update corresponding | |
5298 | * documentation in vswitch.xml at the same time. */ | |
5299 | if (dst[0] != 0x01) { | |
5300 | /* All the currently banned MACs happen to start with 01 currently, so | |
5301 | * this is a quick way to eliminate most of the good ones. */ | |
5302 | } else { | |
5303 | if (eth_addr_is_reserved(dst)) { | |
5304 | /* Drop STP, IEEE pause frames, and other reserved protocols | |
5305 | * (01-80-c2-00-00-0x). */ | |
5306 | return false; | |
5307 | } | |
5308 | ||
5309 | if (dst[0] == 0x01 && dst[1] == 0x00 && dst[2] == 0x0c) { | |
5310 | /* Cisco OUI. */ | |
5311 | if ((dst[3] & 0xfe) == 0xcc && | |
5312 | (dst[4] & 0xfe) == 0xcc && | |
5313 | (dst[5] & 0xfe) == 0xcc) { | |
5314 | /* Drop the following protocols plus others following the same | |
5315 | pattern: | |
5316 | ||
5317 | CDP, VTP, DTP, PAgP (01-00-0c-cc-cc-cc) | |
5318 | Spanning Tree PVSTP+ (01-00-0c-cc-cc-cd) | |
5319 | STP Uplink Fast (01-00-0c-cd-cd-cd) */ | |
5320 | return false; | |
5321 | } | |
5322 | ||
5323 | if (!(dst[3] | dst[4] | dst[5])) { | |
5324 | /* Drop Inter Switch Link packets (01-00-0c-00-00-00). */ | |
5325 | return false; | |
5326 | } | |
5327 | } | |
5328 | } | |
5329 | return true; | |
5330 | } | |
5331 | ||
abe529af | 5332 | static void |
c06bba01 | 5333 | add_mirror_actions(struct action_xlate_ctx *ctx, const struct flow *orig_flow) |
abe529af BP |
5334 | { |
5335 | struct ofproto_dpif *ofproto = ctx->ofproto; | |
5336 | mirror_mask_t mirrors; | |
c06bba01 JP |
5337 | struct ofbundle *in_bundle; |
5338 | uint16_t vlan; | |
5339 | uint16_t vid; | |
5340 | const struct nlattr *a; | |
5341 | size_t left; | |
5342 | ||
3581c12c JP |
5343 | in_bundle = lookup_input_bundle(ctx->ofproto, orig_flow->in_port, |
5344 | ctx->packet != NULL); | |
5345 | if (!in_bundle) { | |
c06bba01 JP |
5346 | return; |
5347 | } | |
c06bba01 JP |
5348 | mirrors = in_bundle->src_mirrors; |
5349 | ||
5350 | /* Drop frames on bundles reserved for mirroring. */ | |
5351 | if (in_bundle->mirror_out) { | |
5352 | if (ctx->packet != NULL) { | |
5353 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
5354 | VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port " | |
5355 | "%s, which is reserved exclusively for mirroring", | |
5356 | ctx->ofproto->up.name, in_bundle->name); | |
5357 | } | |
5358 | return; | |
5359 | } | |
5360 | ||
5361 | /* Check VLAN. */ | |
5362 | vid = vlan_tci_to_vid(orig_flow->vlan_tci); | |
5363 | if (!input_vid_is_valid(vid, in_bundle, ctx->packet != NULL)) { | |
5364 | return; | |
5365 | } | |
5366 | vlan = input_vid_to_vlan(in_bundle, vid); | |
5367 | ||
5368 | /* Look at the output ports to check for destination selections. */ | |
5369 | ||
5370 | NL_ATTR_FOR_EACH (a, left, ctx->odp_actions->data, | |
5371 | ctx->odp_actions->size) { | |
5372 | enum ovs_action_attr type = nl_attr_type(a); | |
5373 | struct ofport_dpif *ofport; | |
5374 | ||
5375 | if (type != OVS_ACTION_ATTR_OUTPUT) { | |
5376 | continue; | |
5377 | } | |
5378 | ||
5379 | ofport = get_odp_port(ofproto, nl_attr_get_u32(a)); | |
521472bc BP |
5380 | if (ofport && ofport->bundle) { |
5381 | mirrors |= ofport->bundle->dst_mirrors; | |
5382 | } | |
c06bba01 | 5383 | } |
abe529af BP |
5384 | |
5385 | if (!mirrors) { | |
5386 | return; | |
5387 | } | |
5388 | ||
c06bba01 JP |
5389 | /* Restore the original packet before adding the mirror actions. */ |
5390 | ctx->flow = *orig_flow; | |
5391 | ||
9ba15e2a BP |
5392 | while (mirrors) { |
5393 | struct ofmirror *m; | |
9ba15e2a BP |
5394 | |
5395 | m = ofproto->mirrors[mirror_mask_ffs(mirrors) - 1]; | |
5396 | ||
5397 | if (!vlan_is_mirrored(m, vlan)) { | |
5398 | mirrors &= mirrors - 1; | |
5399 | continue; | |
5400 | } | |
5401 | ||
5402 | mirrors &= ~m->dup_mirrors; | |
9d24de3b | 5403 | ctx->mirrors |= m->dup_mirrors; |
9ba15e2a | 5404 | if (m->out) { |
395e68ce | 5405 | output_normal(ctx, m->out, vlan); |
c06bba01 | 5406 | } else if (eth_dst_may_rspan(orig_flow->dl_dst) |
9ba15e2a BP |
5407 | && vlan != m->out_vlan) { |
5408 | struct ofbundle *bundle; | |
5409 | ||
5410 | HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) { | |
5411 | if (ofbundle_includes_vlan(bundle, m->out_vlan) | |
395e68ce BP |
5412 | && !bundle->mirror_out) { |
5413 | output_normal(ctx, bundle, m->out_vlan); | |
abe529af BP |
5414 | } |
5415 | } | |
5416 | } | |
abe529af BP |
5417 | } |
5418 | } | |
5419 | ||
9d24de3b JP |
5420 | static void |
5421 | update_mirror_stats(struct ofproto_dpif *ofproto, mirror_mask_t mirrors, | |
5422 | uint64_t packets, uint64_t bytes) | |
5423 | { | |
5424 | if (!mirrors) { | |
5425 | return; | |
5426 | } | |
5427 | ||
5428 | for (; mirrors; mirrors &= mirrors - 1) { | |
5429 | struct ofmirror *m; | |
5430 | ||
5431 | m = ofproto->mirrors[mirror_mask_ffs(mirrors) - 1]; | |
5432 | ||
5433 | if (!m) { | |
5434 | /* In normal circumstances 'm' will not be NULL. However, | |
5435 | * if mirrors are reconfigured, we can temporarily get out | |
5436 | * of sync in facet_revalidate(). We could "correct" the | |
5437 | * mirror list before reaching here, but doing that would | |
5438 | * not properly account the traffic stats we've currently | |
5439 | * accumulated for previous mirror configuration. */ | |
5440 | continue; | |
5441 | } | |
5442 | ||
5443 | m->packet_count += packets; | |
5444 | m->byte_count += bytes; | |
5445 | } | |
5446 | } | |
5447 | ||
abe529af BP |
5448 | /* A VM broadcasts a gratuitous ARP to indicate that it has resumed after |
5449 | * migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to | |
5450 | * indicate this; newer upstream kernels use gratuitous ARP requests. */ | |
5451 | static bool | |
5452 | is_gratuitous_arp(const struct flow *flow) | |
5453 | { | |
5454 | return (flow->dl_type == htons(ETH_TYPE_ARP) | |
5455 | && eth_addr_is_broadcast(flow->dl_dst) | |
5456 | && (flow->nw_proto == ARP_OP_REPLY | |
5457 | || (flow->nw_proto == ARP_OP_REQUEST | |
5458 | && flow->nw_src == flow->nw_dst))); | |
5459 | } | |
5460 | ||
5461 | static void | |
5462 | update_learning_table(struct ofproto_dpif *ofproto, | |
5463 | const struct flow *flow, int vlan, | |
5464 | struct ofbundle *in_bundle) | |
5465 | { | |
5466 | struct mac_entry *mac; | |
5467 | ||
33158a18 JP |
5468 | /* Don't learn the OFPP_NONE port. */ |
5469 | if (in_bundle == &ofpp_none_bundle) { | |
5470 | return; | |
5471 | } | |
5472 | ||
abe529af BP |
5473 | if (!mac_learning_may_learn(ofproto->ml, flow->dl_src, vlan)) { |
5474 | return; | |
5475 | } | |
5476 | ||
5477 | mac = mac_learning_insert(ofproto->ml, flow->dl_src, vlan); | |
5478 | if (is_gratuitous_arp(flow)) { | |
5479 | /* We don't want to learn from gratuitous ARP packets that are | |
5480 | * reflected back over bond slaves so we lock the learning table. */ | |
5481 | if (!in_bundle->bond) { | |
5482 | mac_entry_set_grat_arp_lock(mac); | |
5483 | } else if (mac_entry_is_grat_arp_locked(mac)) { | |
5484 | return; | |
5485 | } | |
5486 | } | |
5487 | ||
5488 | if (mac_entry_is_new(mac) || mac->port.p != in_bundle) { | |
5489 | /* The log messages here could actually be useful in debugging, | |
5490 | * so keep the rate limit relatively high. */ | |
5491 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(30, 300); | |
5492 | VLOG_DBG_RL(&rl, "bridge %s: learned that "ETH_ADDR_FMT" is " | |
5493 | "on port %s in VLAN %d", | |
5494 | ofproto->up.name, ETH_ADDR_ARGS(flow->dl_src), | |
5495 | in_bundle->name, vlan); | |
5496 | ||
5497 | mac->port.p = in_bundle; | |
5498 | tag_set_add(&ofproto->revalidate_set, | |
5499 | mac_learning_changed(ofproto->ml, mac)); | |
5500 | } | |
5501 | } | |
5502 | ||
3581c12c | 5503 | static struct ofbundle * |
395e68ce BP |
5504 | lookup_input_bundle(struct ofproto_dpif *ofproto, uint16_t in_port, bool warn) |
5505 | { | |
5506 | struct ofport_dpif *ofport; | |
5507 | ||
33158a18 JP |
5508 | /* Special-case OFPP_NONE, which a controller may use as the ingress |
5509 | * port for traffic that it is sourcing. */ | |
5510 | if (in_port == OFPP_NONE) { | |
5511 | return &ofpp_none_bundle; | |
5512 | } | |
5513 | ||
395e68ce BP |
5514 | /* Find the port and bundle for the received packet. */ |
5515 | ofport = get_ofp_port(ofproto, in_port); | |
5516 | if (ofport && ofport->bundle) { | |
3581c12c | 5517 | return ofport->bundle; |
395e68ce BP |
5518 | } |
5519 | ||
5520 | /* Odd. A few possible reasons here: | |
5521 | * | |
5522 | * - We deleted a port but there are still a few packets queued up | |
5523 | * from it. | |
5524 | * | |
5525 | * - Someone externally added a port (e.g. "ovs-dpctl add-if") that | |
5526 | * we don't know about. | |
5527 | * | |
5528 | * - The ofproto client didn't configure the port as part of a bundle. | |
5529 | */ | |
5530 | if (warn) { | |
5531 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
5532 | ||
5533 | VLOG_WARN_RL(&rl, "bridge %s: received packet on unknown " | |
5534 | "port %"PRIu16, ofproto->up.name, in_port); | |
5535 | } | |
5536 | return NULL; | |
5537 | } | |
5538 | ||
5da5ec37 | 5539 | /* Determines whether packets in 'flow' within 'ofproto' should be forwarded or |
abe529af BP |
5540 | * dropped. Returns true if they may be forwarded, false if they should be |
5541 | * dropped. | |
5542 | * | |
395e68ce BP |
5543 | * 'in_port' must be the ofport_dpif that corresponds to flow->in_port. |
5544 | * 'in_port' must be part of a bundle (e.g. in_port->bundle must be nonnull). | |
abe529af | 5545 | * |
395e68ce BP |
5546 | * 'vlan' must be the VLAN that corresponds to flow->vlan_tci on 'in_port', as |
5547 | * returned by input_vid_to_vlan(). It must be a valid VLAN for 'in_port', as | |
5548 | * checked by input_vid_is_valid(). | |
abe529af BP |
5549 | * |
5550 | * May also add tags to '*tags', although the current implementation only does | |
5551 | * so in one special case. | |
5552 | */ | |
5553 | static bool | |
5554 | is_admissible(struct ofproto_dpif *ofproto, const struct flow *flow, | |
395e68ce | 5555 | struct ofport_dpif *in_port, uint16_t vlan, tag_type *tags) |
abe529af | 5556 | { |
395e68ce | 5557 | struct ofbundle *in_bundle = in_port->bundle; |
abe529af | 5558 | |
395e68ce BP |
5559 | /* Drop frames for reserved multicast addresses |
5560 | * only if forward_bpdu option is absent. */ | |
21f7563c | 5561 | if (eth_addr_is_reserved(flow->dl_dst) && !ofproto->up.forward_bpdu) { |
abe529af BP |
5562 | return false; |
5563 | } | |
5564 | ||
abe529af BP |
5565 | if (in_bundle->bond) { |
5566 | struct mac_entry *mac; | |
5567 | ||
5568 | switch (bond_check_admissibility(in_bundle->bond, in_port, | |
5569 | flow->dl_dst, tags)) { | |
5570 | case BV_ACCEPT: | |
5571 | break; | |
5572 | ||
5573 | case BV_DROP: | |
5574 | return false; | |
5575 | ||
5576 | case BV_DROP_IF_MOVED: | |
5577 | mac = mac_learning_lookup(ofproto->ml, flow->dl_src, vlan, NULL); | |
5578 | if (mac && mac->port.p != in_bundle && | |
5579 | (!is_gratuitous_arp(flow) | |
5580 | || mac_entry_is_grat_arp_locked(mac))) { | |
5581 | return false; | |
5582 | } | |
5583 | break; | |
5584 | } | |
5585 | } | |
5586 | ||
5587 | return true; | |
5588 | } | |
5589 | ||
4cd78906 | 5590 | static void |
abe529af BP |
5591 | xlate_normal(struct action_xlate_ctx *ctx) |
5592 | { | |
395e68ce | 5593 | struct ofport_dpif *in_port; |
abe529af | 5594 | struct ofbundle *in_bundle; |
abe529af | 5595 | struct mac_entry *mac; |
395e68ce BP |
5596 | uint16_t vlan; |
5597 | uint16_t vid; | |
abe529af | 5598 | |
75a75043 BP |
5599 | ctx->has_normal = true; |
5600 | ||
3581c12c | 5601 | in_bundle = lookup_input_bundle(ctx->ofproto, ctx->flow.in_port, |
395e68ce | 5602 | ctx->packet != NULL); |
3581c12c | 5603 | if (!in_bundle) { |
395e68ce BP |
5604 | return; |
5605 | } | |
3581c12c | 5606 | |
33158a18 JP |
5607 | /* We know 'in_port' exists unless it is "ofpp_none_bundle", |
5608 | * since lookup_input_bundle() succeeded. */ | |
3581c12c | 5609 | in_port = get_ofp_port(ctx->ofproto, ctx->flow.in_port); |
395e68ce BP |
5610 | |
5611 | /* Drop malformed frames. */ | |
5612 | if (ctx->flow.dl_type == htons(ETH_TYPE_VLAN) && | |
5613 | !(ctx->flow.vlan_tci & htons(VLAN_CFI))) { | |
5614 | if (ctx->packet != NULL) { | |
5615 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
5616 | VLOG_WARN_RL(&rl, "bridge %s: dropping packet with partial " | |
5617 | "VLAN tag received on port %s", | |
5618 | ctx->ofproto->up.name, in_bundle->name); | |
5619 | } | |
5620 | return; | |
5621 | } | |
5622 | ||
5623 | /* Drop frames on bundles reserved for mirroring. */ | |
5624 | if (in_bundle->mirror_out) { | |
5625 | if (ctx->packet != NULL) { | |
5626 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
5627 | VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port " | |
5628 | "%s, which is reserved exclusively for mirroring", | |
5629 | ctx->ofproto->up.name, in_bundle->name); | |
5630 | } | |
5631 | return; | |
5632 | } | |
5633 | ||
5634 | /* Check VLAN. */ | |
5635 | vid = vlan_tci_to_vid(ctx->flow.vlan_tci); | |
5636 | if (!input_vid_is_valid(vid, in_bundle, ctx->packet != NULL)) { | |
5637 | return; | |
5638 | } | |
5639 | vlan = input_vid_to_vlan(in_bundle, vid); | |
5640 | ||
5641 | /* Check other admissibility requirements. */ | |
33158a18 JP |
5642 | if (in_port && |
5643 | !is_admissible(ctx->ofproto, &ctx->flow, in_port, vlan, &ctx->tags)) { | |
395e68ce | 5644 | return; |
abe529af BP |
5645 | } |
5646 | ||
75a75043 BP |
5647 | /* Learn source MAC. */ |
5648 | if (ctx->may_learn) { | |
abe529af BP |
5649 | update_learning_table(ctx->ofproto, &ctx->flow, vlan, in_bundle); |
5650 | } | |
5651 | ||
5652 | /* Determine output bundle. */ | |
5653 | mac = mac_learning_lookup(ctx->ofproto->ml, ctx->flow.dl_dst, vlan, | |
5654 | &ctx->tags); | |
5655 | if (mac) { | |
c06bba01 JP |
5656 | if (mac->port.p != in_bundle) { |
5657 | output_normal(ctx, mac->port.p, vlan); | |
5658 | } | |
abe529af | 5659 | } else { |
c06bba01 | 5660 | struct ofbundle *bundle; |
abe529af | 5661 | |
c06bba01 JP |
5662 | HMAP_FOR_EACH (bundle, hmap_node, &ctx->ofproto->bundles) { |
5663 | if (bundle != in_bundle | |
5664 | && ofbundle_includes_vlan(bundle, vlan) | |
5665 | && bundle->floodable | |
5666 | && !bundle->mirror_out) { | |
5667 | output_normal(ctx, bundle, vlan); | |
5668 | } | |
5669 | } | |
5670 | ctx->nf_output_iface = NF_OUT_FLOOD; | |
abe529af | 5671 | } |
abe529af BP |
5672 | } |
5673 | \f | |
54a9cbc9 BP |
5674 | /* Optimized flow revalidation. |
5675 | * | |
5676 | * It's a difficult problem, in general, to tell which facets need to have | |
5677 | * their actions recalculated whenever the OpenFlow flow table changes. We | |
5678 | * don't try to solve that general problem: for most kinds of OpenFlow flow | |
5679 | * table changes, we recalculate the actions for every facet. This is | |
5680 | * relatively expensive, but it's good enough if the OpenFlow flow table | |
5681 | * doesn't change very often. | |
5682 | * | |
5683 | * However, we can expect one particular kind of OpenFlow flow table change to | |
5684 | * happen frequently: changes caused by MAC learning. To avoid wasting a lot | |
5685 | * of CPU on revalidating every facet whenever MAC learning modifies the flow | |
5686 | * table, we add a special case that applies to flow tables in which every rule | |
5687 | * has the same form (that is, the same wildcards), except that the table is | |
5688 | * also allowed to have a single "catch-all" flow that matches all packets. We | |
5689 | * optimize this case by tagging all of the facets that resubmit into the table | |
5690 | * and invalidating the same tag whenever a flow changes in that table. The | |
5691 | * end result is that we revalidate just the facets that need it (and sometimes | |
5692 | * a few more, but not all of the facets or even all of the facets that | |
5693 | * resubmit to the table modified by MAC learning). */ | |
5694 | ||
5695 | /* Calculates the tag to use for 'flow' and wildcards 'wc' when it is inserted | |
5696 | * into an OpenFlow table with the given 'basis'. */ | |
5697 | static uint32_t | |
5698 | rule_calculate_tag(const struct flow *flow, const struct flow_wildcards *wc, | |
5699 | uint32_t secret) | |
5700 | { | |
5701 | if (flow_wildcards_is_catchall(wc)) { | |
5702 | return 0; | |
5703 | } else { | |
5704 | struct flow tag_flow = *flow; | |
5705 | flow_zero_wildcards(&tag_flow, wc); | |
5706 | return tag_create_deterministic(flow_hash(&tag_flow, secret)); | |
5707 | } | |
5708 | } | |
5709 | ||
5710 | /* Following a change to OpenFlow table 'table_id' in 'ofproto', update the | |
5711 | * taggability of that table. | |
5712 | * | |
5713 | * This function must be called after *each* change to a flow table. If you | |
5714 | * skip calling it on some changes then the pointer comparisons at the end can | |
5715 | * be invalid if you get unlucky. For example, if a flow removal causes a | |
5716 | * cls_table to be destroyed and then a flow insertion causes a cls_table with | |
5717 | * different wildcards to be created with the same address, then this function | |
5718 | * will incorrectly skip revalidation. */ | |
5719 | static void | |
5720 | table_update_taggable(struct ofproto_dpif *ofproto, uint8_t table_id) | |
5721 | { | |
5722 | struct table_dpif *table = &ofproto->tables[table_id]; | |
d0918789 | 5723 | const struct oftable *oftable = &ofproto->up.tables[table_id]; |
54a9cbc9 BP |
5724 | struct cls_table *catchall, *other; |
5725 | struct cls_table *t; | |
5726 | ||
5727 | catchall = other = NULL; | |
5728 | ||
d0918789 | 5729 | switch (hmap_count(&oftable->cls.tables)) { |
54a9cbc9 BP |
5730 | case 0: |
5731 | /* We could tag this OpenFlow table but it would make the logic a | |
5732 | * little harder and it's a corner case that doesn't seem worth it | |
5733 | * yet. */ | |
5734 | break; | |
5735 | ||
5736 | case 1: | |
5737 | case 2: | |
d0918789 | 5738 | HMAP_FOR_EACH (t, hmap_node, &oftable->cls.tables) { |
54a9cbc9 BP |
5739 | if (cls_table_is_catchall(t)) { |
5740 | catchall = t; | |
5741 | } else if (!other) { | |
5742 | other = t; | |
5743 | } else { | |
5744 | /* Indicate that we can't tag this by setting both tables to | |
5745 | * NULL. (We know that 'catchall' is already NULL.) */ | |
5746 | other = NULL; | |
5747 | } | |
5748 | } | |
5749 | break; | |
5750 | ||
5751 | default: | |
5752 | /* Can't tag this table. */ | |
5753 | break; | |
5754 | } | |
5755 | ||
5756 | if (table->catchall_table != catchall || table->other_table != other) { | |
5757 | table->catchall_table = catchall; | |
5758 | table->other_table = other; | |
5759 | ofproto->need_revalidate = true; | |
5760 | } | |
5761 | } | |
5762 | ||
5763 | /* Given 'rule' that has changed in some way (either it is a rule being | |
5764 | * inserted, a rule being deleted, or a rule whose actions are being | |
5765 | * modified), marks facets for revalidation to ensure that packets will be | |
5766 | * forwarded correctly according to the new state of the flow table. | |
5767 | * | |
5768 | * This function must be called after *each* change to a flow table. See | |
5769 | * the comment on table_update_taggable() for more information. */ | |
5770 | static void | |
5771 | rule_invalidate(const struct rule_dpif *rule) | |
5772 | { | |
5773 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto); | |
5774 | ||
5775 | table_update_taggable(ofproto, rule->up.table_id); | |
5776 | ||
5777 | if (!ofproto->need_revalidate) { | |
5778 | struct table_dpif *table = &ofproto->tables[rule->up.table_id]; | |
5779 | ||
5780 | if (table->other_table && rule->tag) { | |
5781 | tag_set_add(&ofproto->revalidate_set, rule->tag); | |
5782 | } else { | |
5783 | ofproto->need_revalidate = true; | |
5784 | } | |
5785 | } | |
5786 | } | |
5787 | \f | |
abe529af | 5788 | static bool |
7257b535 BP |
5789 | set_frag_handling(struct ofproto *ofproto_, |
5790 | enum ofp_config_flags frag_handling) | |
abe529af BP |
5791 | { |
5792 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
abe529af | 5793 | |
7257b535 BP |
5794 | if (frag_handling != OFPC_FRAG_REASM) { |
5795 | ofproto->need_revalidate = true; | |
5796 | return true; | |
5797 | } else { | |
5798 | return false; | |
5799 | } | |
abe529af BP |
5800 | } |
5801 | ||
90bf1e07 | 5802 | static enum ofperr |
abe529af BP |
5803 | packet_out(struct ofproto *ofproto_, struct ofpbuf *packet, |
5804 | const struct flow *flow, | |
5805 | const union ofp_action *ofp_actions, size_t n_ofp_actions) | |
5806 | { | |
5807 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
90bf1e07 | 5808 | enum ofperr error; |
abe529af | 5809 | |
e1154f71 | 5810 | if (flow->in_port >= ofproto->max_ports && flow->in_port < OFPP_MAX) { |
90bf1e07 | 5811 | return OFPERR_NXBRC_BAD_IN_PORT; |
e1154f71 BP |
5812 | } |
5813 | ||
abe529af BP |
5814 | error = validate_actions(ofp_actions, n_ofp_actions, flow, |
5815 | ofproto->max_ports); | |
5816 | if (!error) { | |
80e5eed9 | 5817 | struct odputil_keybuf keybuf; |
abe529af | 5818 | struct ofpbuf *odp_actions; |
2284188b | 5819 | struct ofproto_push push; |
80e5eed9 BP |
5820 | struct ofpbuf key; |
5821 | ||
5822 | ofpbuf_use_stack(&key, &keybuf, sizeof keybuf); | |
5823 | odp_flow_key_from_flow(&key, flow); | |
abe529af | 5824 | |
18b2a258 | 5825 | action_xlate_ctx_init(&push.ctx, ofproto, flow, flow->vlan_tci, NULL, |
0e553d9c | 5826 | packet_get_tcp_flags(packet, flow), packet); |
2284188b EJ |
5827 | |
5828 | /* Ensure that resubmits in 'ofp_actions' get accounted to their | |
5829 | * matching rules. */ | |
5830 | push.packets = 1; | |
5831 | push.bytes = packet->size; | |
5832 | push.used = time_msec(); | |
5833 | push.ctx.resubmit_hook = push_resubmit; | |
5834 | ||
5835 | odp_actions = xlate_actions(&push.ctx, ofp_actions, n_ofp_actions); | |
80e5eed9 BP |
5836 | dpif_execute(ofproto->dpif, key.data, key.size, |
5837 | odp_actions->data, odp_actions->size, packet); | |
abe529af BP |
5838 | ofpbuf_delete(odp_actions); |
5839 | } | |
5840 | return error; | |
5841 | } | |
6fca1ffb BP |
5842 | \f |
5843 | /* NetFlow. */ | |
5844 | ||
5845 | static int | |
5846 | set_netflow(struct ofproto *ofproto_, | |
5847 | const struct netflow_options *netflow_options) | |
5848 | { | |
5849 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
5850 | ||
5851 | if (netflow_options) { | |
5852 | if (!ofproto->netflow) { | |
5853 | ofproto->netflow = netflow_create(); | |
5854 | } | |
5855 | return netflow_set_options(ofproto->netflow, netflow_options); | |
5856 | } else { | |
5857 | netflow_destroy(ofproto->netflow); | |
5858 | ofproto->netflow = NULL; | |
5859 | return 0; | |
5860 | } | |
5861 | } | |
abe529af BP |
5862 | |
5863 | static void | |
5864 | get_netflow_ids(const struct ofproto *ofproto_, | |
5865 | uint8_t *engine_type, uint8_t *engine_id) | |
5866 | { | |
5867 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_); | |
5868 | ||
5869 | dpif_get_netflow_ids(ofproto->dpif, engine_type, engine_id); | |
5870 | } | |
6fca1ffb BP |
5871 | |
5872 | static void | |
5873 | send_active_timeout(struct ofproto_dpif *ofproto, struct facet *facet) | |
5874 | { | |
5875 | if (!facet_is_controller_flow(facet) && | |
5876 | netflow_active_timeout_expired(ofproto->netflow, &facet->nf_flow)) { | |
b0f7b9b5 | 5877 | struct subfacet *subfacet; |
6fca1ffb BP |
5878 | struct ofexpired expired; |
5879 | ||
b0f7b9b5 BP |
5880 | LIST_FOR_EACH (subfacet, list_node, &facet->subfacets) { |
5881 | if (subfacet->installed) { | |
5882 | struct dpif_flow_stats stats; | |
6fca1ffb | 5883 | |
15baa734 | 5884 | subfacet_install(subfacet, subfacet->actions, |
b95fc6ba | 5885 | subfacet->actions_len, &stats); |
15baa734 | 5886 | subfacet_update_stats(subfacet, &stats); |
b0f7b9b5 | 5887 | } |
6fca1ffb BP |
5888 | } |
5889 | ||
5890 | expired.flow = facet->flow; | |
5891 | expired.packet_count = facet->packet_count; | |
5892 | expired.byte_count = facet->byte_count; | |
5893 | expired.used = facet->used; | |
5894 | netflow_expire(ofproto->netflow, &facet->nf_flow, &expired); | |
5895 | } | |
5896 | } | |
5897 | ||
5898 | static void | |
5899 | send_netflow_active_timeouts(struct ofproto_dpif *ofproto) | |
5900 | { | |
5901 | struct facet *facet; | |
5902 | ||
5903 | HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) { | |
5904 | send_active_timeout(ofproto, facet); | |
5905 | } | |
5906 | } | |
abe529af BP |
5907 | \f |
5908 | static struct ofproto_dpif * | |
5909 | ofproto_dpif_lookup(const char *name) | |
5910 | { | |
b44a10b7 BP |
5911 | struct ofproto_dpif *ofproto; |
5912 | ||
5913 | HMAP_FOR_EACH_WITH_HASH (ofproto, all_ofproto_dpifs_node, | |
5914 | hash_string(name, 0), &all_ofproto_dpifs) { | |
5915 | if (!strcmp(ofproto->up.name, name)) { | |
5916 | return ofproto; | |
5917 | } | |
5918 | } | |
5919 | return NULL; | |
abe529af BP |
5920 | } |
5921 | ||
f0a3aa2e | 5922 | static void |
96e466a3 | 5923 | ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc, |
0e15264f | 5924 | const char *argv[], void *aux OVS_UNUSED) |
f0a3aa2e | 5925 | { |
490df1ef | 5926 | struct ofproto_dpif *ofproto; |
f0a3aa2e | 5927 | |
96e466a3 EJ |
5928 | if (argc > 1) { |
5929 | ofproto = ofproto_dpif_lookup(argv[1]); | |
5930 | if (!ofproto) { | |
bde9f75d | 5931 | unixctl_command_reply_error(conn, "no such bridge"); |
96e466a3 EJ |
5932 | return; |
5933 | } | |
d0040604 | 5934 | mac_learning_flush(ofproto->ml, &ofproto->revalidate_set); |
96e466a3 EJ |
5935 | } else { |
5936 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
d0040604 | 5937 | mac_learning_flush(ofproto->ml, &ofproto->revalidate_set); |
96e466a3 | 5938 | } |
f0a3aa2e | 5939 | } |
f0a3aa2e | 5940 | |
bde9f75d | 5941 | unixctl_command_reply(conn, "table successfully flushed"); |
f0a3aa2e AA |
5942 | } |
5943 | ||
abe529af | 5944 | static void |
0e15264f BP |
5945 | ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED, |
5946 | const char *argv[], void *aux OVS_UNUSED) | |
abe529af BP |
5947 | { |
5948 | struct ds ds = DS_EMPTY_INITIALIZER; | |
5949 | const struct ofproto_dpif *ofproto; | |
5950 | const struct mac_entry *e; | |
5951 | ||
0e15264f | 5952 | ofproto = ofproto_dpif_lookup(argv[1]); |
abe529af | 5953 | if (!ofproto) { |
bde9f75d | 5954 | unixctl_command_reply_error(conn, "no such bridge"); |
abe529af BP |
5955 | return; |
5956 | } | |
5957 | ||
5958 | ds_put_cstr(&ds, " port VLAN MAC Age\n"); | |
5959 | LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) { | |
5960 | struct ofbundle *bundle = e->port.p; | |
5961 | ds_put_format(&ds, "%5d %4d "ETH_ADDR_FMT" %3d\n", | |
5962 | ofbundle_get_a_port(bundle)->odp_port, | |
e764773c BP |
5963 | e->vlan, ETH_ADDR_ARGS(e->mac), |
5964 | mac_entry_age(ofproto->ml, e)); | |
abe529af | 5965 | } |
bde9f75d | 5966 | unixctl_command_reply(conn, ds_cstr(&ds)); |
abe529af BP |
5967 | ds_destroy(&ds); |
5968 | } | |
5969 | ||
6a6455e5 | 5970 | struct trace_ctx { |
abe529af BP |
5971 | struct action_xlate_ctx ctx; |
5972 | struct flow flow; | |
5973 | struct ds *result; | |
5974 | }; | |
5975 | ||
5976 | static void | |
29901626 BP |
5977 | trace_format_rule(struct ds *result, uint8_t table_id, int level, |
5978 | const struct rule_dpif *rule) | |
abe529af BP |
5979 | { |
5980 | ds_put_char_multiple(result, '\t', level); | |
5981 | if (!rule) { | |
5982 | ds_put_cstr(result, "No match\n"); | |
5983 | return; | |
5984 | } | |
5985 | ||
29901626 BP |
5986 | ds_put_format(result, "Rule: table=%"PRIu8" cookie=%#"PRIx64" ", |
5987 | table_id, ntohll(rule->up.flow_cookie)); | |
79feb7df | 5988 | cls_rule_format(&rule->up.cr, result); |
abe529af BP |
5989 | ds_put_char(result, '\n'); |
5990 | ||
5991 | ds_put_char_multiple(result, '\t', level); | |
5992 | ds_put_cstr(result, "OpenFlow "); | |
79feb7df | 5993 | ofp_print_actions(result, rule->up.actions, rule->up.n_actions); |
abe529af BP |
5994 | ds_put_char(result, '\n'); |
5995 | } | |
5996 | ||
5997 | static void | |
5998 | trace_format_flow(struct ds *result, int level, const char *title, | |
6a6455e5 | 5999 | struct trace_ctx *trace) |
abe529af BP |
6000 | { |
6001 | ds_put_char_multiple(result, '\t', level); | |
6002 | ds_put_format(result, "%s: ", title); | |
6003 | if (flow_equal(&trace->ctx.flow, &trace->flow)) { | |
6004 | ds_put_cstr(result, "unchanged"); | |
6005 | } else { | |
6006 | flow_format(result, &trace->ctx.flow); | |
6007 | trace->flow = trace->ctx.flow; | |
6008 | } | |
6009 | ds_put_char(result, '\n'); | |
6010 | } | |
6011 | ||
eb9e1c26 EJ |
6012 | static void |
6013 | trace_format_regs(struct ds *result, int level, const char *title, | |
6a6455e5 | 6014 | struct trace_ctx *trace) |
eb9e1c26 EJ |
6015 | { |
6016 | size_t i; | |
6017 | ||
6018 | ds_put_char_multiple(result, '\t', level); | |
6019 | ds_put_format(result, "%s:", title); | |
6020 | for (i = 0; i < FLOW_N_REGS; i++) { | |
6021 | ds_put_format(result, " reg%zu=0x%"PRIx32, i, trace->flow.regs[i]); | |
6022 | } | |
6023 | ds_put_char(result, '\n'); | |
6024 | } | |
6025 | ||
1ed8d352 EJ |
6026 | static void |
6027 | trace_format_odp(struct ds *result, int level, const char *title, | |
6a6455e5 | 6028 | struct trace_ctx *trace) |
1ed8d352 EJ |
6029 | { |
6030 | struct ofpbuf *odp_actions = trace->ctx.odp_actions; | |
6031 | ||
6032 | ds_put_char_multiple(result, '\t', level); | |
6033 | ds_put_format(result, "%s: ", title); | |
6034 | format_odp_actions(result, odp_actions->data, odp_actions->size); | |
6035 | ds_put_char(result, '\n'); | |
6036 | } | |
6037 | ||
abe529af BP |
6038 | static void |
6039 | trace_resubmit(struct action_xlate_ctx *ctx, struct rule_dpif *rule) | |
6040 | { | |
6a6455e5 | 6041 | struct trace_ctx *trace = CONTAINER_OF(ctx, struct trace_ctx, ctx); |
abe529af BP |
6042 | struct ds *result = trace->result; |
6043 | ||
6044 | ds_put_char(result, '\n'); | |
6045 | trace_format_flow(result, ctx->recurse + 1, "Resubmitted flow", trace); | |
eb9e1c26 | 6046 | trace_format_regs(result, ctx->recurse + 1, "Resubmitted regs", trace); |
1ed8d352 | 6047 | trace_format_odp(result, ctx->recurse + 1, "Resubmitted odp", trace); |
29901626 | 6048 | trace_format_rule(result, ctx->table_id, ctx->recurse + 1, rule); |
abe529af BP |
6049 | } |
6050 | ||
6051 | static void | |
0e15264f | 6052 | ofproto_unixctl_trace(struct unixctl_conn *conn, int argc, const char *argv[], |
abe529af BP |
6053 | void *aux OVS_UNUSED) |
6054 | { | |
0e15264f | 6055 | const char *dpname = argv[1]; |
abe529af | 6056 | struct ofproto_dpif *ofproto; |
876b0e1c BP |
6057 | struct ofpbuf odp_key; |
6058 | struct ofpbuf *packet; | |
e84173dc | 6059 | ovs_be16 initial_tci; |
abe529af BP |
6060 | struct ds result; |
6061 | struct flow flow; | |
abe529af BP |
6062 | char *s; |
6063 | ||
876b0e1c BP |
6064 | packet = NULL; |
6065 | ofpbuf_init(&odp_key, 0); | |
abe529af BP |
6066 | ds_init(&result); |
6067 | ||
e84173dc BP |
6068 | ofproto = ofproto_dpif_lookup(dpname); |
6069 | if (!ofproto) { | |
bde9f75d EJ |
6070 | unixctl_command_reply_error(conn, "Unknown ofproto (use ofproto/list " |
6071 | "for help)"); | |
e84173dc BP |
6072 | goto exit; |
6073 | } | |
0e15264f | 6074 | if (argc == 3 || (argc == 4 && !strcmp(argv[3], "-generate"))) { |
8b3b8dd1 | 6075 | /* ofproto/trace dpname flow [-generate] */ |
0e15264f BP |
6076 | const char *flow_s = argv[2]; |
6077 | const char *generate_s = argv[3]; | |
876b0e1c BP |
6078 | int error; |
6079 | ||
df2c07f4 | 6080 | /* Convert string to datapath key. */ |
876b0e1c | 6081 | ofpbuf_init(&odp_key, 0); |
0e15264f | 6082 | error = odp_flow_key_from_string(flow_s, NULL, &odp_key); |
876b0e1c | 6083 | if (error) { |
bde9f75d | 6084 | unixctl_command_reply_error(conn, "Bad flow syntax"); |
876b0e1c BP |
6085 | goto exit; |
6086 | } | |
6087 | ||
6088 | /* Convert odp_key to flow. */ | |
e84173dc BP |
6089 | error = ofproto_dpif_extract_flow_key(ofproto, odp_key.data, |
6090 | odp_key.size, &flow, | |
e2a6ca36 | 6091 | &initial_tci, NULL); |
e84173dc | 6092 | if (error == ODP_FIT_ERROR) { |
bde9f75d | 6093 | unixctl_command_reply_error(conn, "Invalid flow"); |
876b0e1c BP |
6094 | goto exit; |
6095 | } | |
8b3b8dd1 BP |
6096 | |
6097 | /* Generate a packet, if requested. */ | |
0e15264f | 6098 | if (generate_s) { |
8b3b8dd1 BP |
6099 | packet = ofpbuf_new(0); |
6100 | flow_compose(packet, &flow); | |
6101 | } | |
0e15264f | 6102 | } else if (argc == 6) { |
abff858b | 6103 | /* ofproto/trace dpname priority tun_id in_port packet */ |
0e15264f BP |
6104 | const char *priority_s = argv[2]; |
6105 | const char *tun_id_s = argv[3]; | |
6106 | const char *in_port_s = argv[4]; | |
6107 | const char *packet_s = argv[5]; | |
6108 | uint16_t in_port = ofp_port_to_odp_port(atoi(in_port_s)); | |
6109 | ovs_be64 tun_id = htonll(strtoull(tun_id_s, NULL, 0)); | |
6110 | uint32_t priority = atoi(priority_s); | |
e22f1753 | 6111 | const char *msg; |
0e15264f | 6112 | |
e22f1753 BP |
6113 | msg = eth_from_hex(packet_s, &packet); |
6114 | if (msg) { | |
bde9f75d | 6115 | unixctl_command_reply_error(conn, msg); |
876b0e1c BP |
6116 | goto exit; |
6117 | } | |
6118 | ||
6119 | ds_put_cstr(&result, "Packet: "); | |
c499c75d | 6120 | s = ofp_packet_to_string(packet->data, packet->size); |
876b0e1c BP |
6121 | ds_put_cstr(&result, s); |
6122 | free(s); | |
6123 | ||
abff858b | 6124 | flow_extract(packet, priority, tun_id, in_port, &flow); |
e84173dc | 6125 | initial_tci = flow.vlan_tci; |
876b0e1c | 6126 | } else { |
bde9f75d | 6127 | unixctl_command_reply_error(conn, "Bad command syntax"); |
abe529af BP |
6128 | goto exit; |
6129 | } | |
6130 | ||
6a6455e5 EJ |
6131 | ofproto_trace(ofproto, &flow, packet, initial_tci, &result); |
6132 | unixctl_command_reply(conn, ds_cstr(&result)); | |
6133 | ||
6134 | exit: | |
6135 | ds_destroy(&result); | |
6136 | ofpbuf_delete(packet); | |
6137 | ofpbuf_uninit(&odp_key); | |
6138 | } | |
6139 | ||
6140 | static void | |
6141 | ofproto_trace(struct ofproto_dpif *ofproto, const struct flow *flow, | |
6142 | const struct ofpbuf *packet, ovs_be16 initial_tci, | |
6143 | struct ds *ds) | |
6144 | { | |
6145 | struct rule_dpif *rule; | |
6146 | ||
6147 | ds_put_cstr(ds, "Flow: "); | |
6148 | flow_format(ds, flow); | |
6149 | ds_put_char(ds, '\n'); | |
abe529af | 6150 | |
6a6455e5 EJ |
6151 | rule = rule_dpif_lookup(ofproto, flow, 0); |
6152 | trace_format_rule(ds, 0, 0, rule); | |
abe529af | 6153 | if (rule) { |
6a6455e5 | 6154 | struct trace_ctx trace; |
abe529af | 6155 | struct ofpbuf *odp_actions; |
0e553d9c | 6156 | uint8_t tcp_flags; |
abe529af | 6157 | |
6a6455e5 EJ |
6158 | tcp_flags = packet ? packet_get_tcp_flags(packet, flow) : 0; |
6159 | trace.result = ds; | |
6160 | trace.flow = *flow; | |
6161 | action_xlate_ctx_init(&trace.ctx, ofproto, flow, initial_tci, | |
0e553d9c | 6162 | rule, tcp_flags, packet); |
abe529af BP |
6163 | trace.ctx.resubmit_hook = trace_resubmit; |
6164 | odp_actions = xlate_actions(&trace.ctx, | |
6165 | rule->up.actions, rule->up.n_actions); | |
6166 | ||
6a6455e5 EJ |
6167 | ds_put_char(ds, '\n'); |
6168 | trace_format_flow(ds, 0, "Final flow", &trace); | |
6169 | ds_put_cstr(ds, "Datapath actions: "); | |
6170 | format_odp_actions(ds, odp_actions->data, odp_actions->size); | |
abe529af | 6171 | ofpbuf_delete(odp_actions); |
876b0e1c BP |
6172 | |
6173 | if (!trace.ctx.may_set_up_flow) { | |
6174 | if (packet) { | |
6a6455e5 | 6175 | ds_put_cstr(ds, "\nThis flow is not cachable."); |
876b0e1c | 6176 | } else { |
6a6455e5 | 6177 | ds_put_cstr(ds, "\nThe datapath actions are incomplete--" |
876b0e1c BP |
6178 | "for complete actions, please supply a packet."); |
6179 | } | |
6180 | } | |
abe529af | 6181 | } |
abe529af BP |
6182 | } |
6183 | ||
7ee20df1 | 6184 | static void |
0e15264f BP |
6185 | ofproto_dpif_clog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED, |
6186 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7ee20df1 BP |
6187 | { |
6188 | clogged = true; | |
bde9f75d | 6189 | unixctl_command_reply(conn, NULL); |
7ee20df1 BP |
6190 | } |
6191 | ||
6192 | static void | |
0e15264f BP |
6193 | ofproto_dpif_unclog(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED, |
6194 | const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED) | |
7ee20df1 BP |
6195 | { |
6196 | clogged = false; | |
bde9f75d | 6197 | unixctl_command_reply(conn, NULL); |
7ee20df1 BP |
6198 | } |
6199 | ||
6814e51f BP |
6200 | /* Runs a self-check of flow translations in 'ofproto'. Appends a message to |
6201 | * 'reply' describing the results. */ | |
6202 | static void | |
6203 | ofproto_dpif_self_check__(struct ofproto_dpif *ofproto, struct ds *reply) | |
6204 | { | |
6205 | struct facet *facet; | |
6206 | int errors; | |
6207 | ||
6208 | errors = 0; | |
6209 | HMAP_FOR_EACH (facet, hmap_node, &ofproto->facets) { | |
6210 | if (!facet_check_consistency(facet)) { | |
6211 | errors++; | |
6212 | } | |
6213 | } | |
6214 | if (errors) { | |
6215 | ofproto->need_revalidate = true; | |
6216 | } | |
6217 | ||
6218 | if (errors) { | |
6219 | ds_put_format(reply, "%s: self-check failed (%d errors)\n", | |
6220 | ofproto->up.name, errors); | |
6221 | } else { | |
6222 | ds_put_format(reply, "%s: self-check passed\n", ofproto->up.name); | |
6223 | } | |
6224 | } | |
6225 | ||
6226 | static void | |
6227 | ofproto_dpif_self_check(struct unixctl_conn *conn, | |
6228 | int argc, const char *argv[], void *aux OVS_UNUSED) | |
6229 | { | |
6230 | struct ds reply = DS_EMPTY_INITIALIZER; | |
6231 | struct ofproto_dpif *ofproto; | |
6232 | ||
6233 | if (argc > 1) { | |
6234 | ofproto = ofproto_dpif_lookup(argv[1]); | |
6235 | if (!ofproto) { | |
bde9f75d EJ |
6236 | unixctl_command_reply_error(conn, "Unknown ofproto (use " |
6237 | "ofproto/list for help)"); | |
6814e51f BP |
6238 | return; |
6239 | } | |
6240 | ofproto_dpif_self_check__(ofproto, &reply); | |
6241 | } else { | |
6242 | HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) { | |
6243 | ofproto_dpif_self_check__(ofproto, &reply); | |
6244 | } | |
6245 | } | |
6246 | ||
bde9f75d | 6247 | unixctl_command_reply(conn, ds_cstr(&reply)); |
6814e51f BP |
6248 | ds_destroy(&reply); |
6249 | } | |
6250 | ||
abe529af BP |
6251 | static void |
6252 | ofproto_dpif_unixctl_init(void) | |
6253 | { | |
6254 | static bool registered; | |
6255 | if (registered) { | |
6256 | return; | |
6257 | } | |
6258 | registered = true; | |
6259 | ||
0e15264f BP |
6260 | unixctl_command_register( |
6261 | "ofproto/trace", | |
6262 | "bridge {tun_id in_port packet | odp_flow [-generate]}", | |
aa3080c9 | 6263 | 2, 5, ofproto_unixctl_trace, NULL); |
96e466a3 | 6264 | unixctl_command_register("fdb/flush", "[bridge]", 0, 1, |
0e15264f BP |
6265 | ofproto_unixctl_fdb_flush, NULL); |
6266 | unixctl_command_register("fdb/show", "bridge", 1, 1, | |
6267 | ofproto_unixctl_fdb_show, NULL); | |
6268 | unixctl_command_register("ofproto/clog", "", 0, 0, | |
6269 | ofproto_dpif_clog, NULL); | |
6270 | unixctl_command_register("ofproto/unclog", "", 0, 0, | |
6271 | ofproto_dpif_unclog, NULL); | |
6814e51f BP |
6272 | unixctl_command_register("ofproto/self-check", "[bridge]", 0, 1, |
6273 | ofproto_dpif_self_check, NULL); | |
abe529af BP |
6274 | } |
6275 | \f | |
52a90c29 BP |
6276 | /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.) |
6277 | * | |
6278 | * This is deprecated. It is only for compatibility with broken device drivers | |
6279 | * in old versions of Linux that do not properly support VLANs when VLAN | |
6280 | * devices are not used. When broken device drivers are no longer in | |
6281 | * widespread use, we will delete these interfaces. */ | |
6282 | ||
6283 | static int | |
6284 | set_realdev(struct ofport *ofport_, uint16_t realdev_ofp_port, int vid) | |
6285 | { | |
6286 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport_->ofproto); | |
6287 | struct ofport_dpif *ofport = ofport_dpif_cast(ofport_); | |
6288 | ||
6289 | if (realdev_ofp_port == ofport->realdev_ofp_port | |
6290 | && vid == ofport->vlandev_vid) { | |
6291 | return 0; | |
6292 | } | |
6293 | ||
6294 | ofproto->need_revalidate = true; | |
6295 | ||
6296 | if (ofport->realdev_ofp_port) { | |
6297 | vsp_remove(ofport); | |
6298 | } | |
6299 | if (realdev_ofp_port && ofport->bundle) { | |
6300 | /* vlandevs are enslaved to their realdevs, so they are not allowed to | |
6301 | * themselves be part of a bundle. */ | |
6302 | bundle_set(ofport->up.ofproto, ofport->bundle, NULL); | |
6303 | } | |
6304 | ||
6305 | ofport->realdev_ofp_port = realdev_ofp_port; | |
6306 | ofport->vlandev_vid = vid; | |
6307 | ||
6308 | if (realdev_ofp_port) { | |
6309 | vsp_add(ofport, realdev_ofp_port, vid); | |
6310 | } | |
6311 | ||
6312 | return 0; | |
6313 | } | |
6314 | ||
6315 | static uint32_t | |
6316 | hash_realdev_vid(uint16_t realdev_ofp_port, int vid) | |
6317 | { | |
6318 | return hash_2words(realdev_ofp_port, vid); | |
6319 | } | |
6320 | ||
40e05935 BP |
6321 | /* Returns the ODP port number of the Linux VLAN device that corresponds to |
6322 | * 'vlan_tci' on the network device with port number 'realdev_odp_port' in | |
6323 | * 'ofproto'. For example, given 'realdev_odp_port' of eth0 and 'vlan_tci' 9, | |
6324 | * it would return the port number of eth0.9. | |
6325 | * | |
6326 | * Unless VLAN splinters are enabled for port 'realdev_odp_port', this | |
6327 | * function just returns its 'realdev_odp_port' argument. */ | |
52a90c29 BP |
6328 | static uint32_t |
6329 | vsp_realdev_to_vlandev(const struct ofproto_dpif *ofproto, | |
6330 | uint32_t realdev_odp_port, ovs_be16 vlan_tci) | |
6331 | { | |
6332 | if (!hmap_is_empty(&ofproto->realdev_vid_map)) { | |
6333 | uint16_t realdev_ofp_port = odp_port_to_ofp_port(realdev_odp_port); | |
6334 | int vid = vlan_tci_to_vid(vlan_tci); | |
6335 | const struct vlan_splinter *vsp; | |
6336 | ||
6337 | HMAP_FOR_EACH_WITH_HASH (vsp, realdev_vid_node, | |
6338 | hash_realdev_vid(realdev_ofp_port, vid), | |
6339 | &ofproto->realdev_vid_map) { | |
6340 | if (vsp->realdev_ofp_port == realdev_ofp_port | |
6341 | && vsp->vid == vid) { | |
6342 | return ofp_port_to_odp_port(vsp->vlandev_ofp_port); | |
6343 | } | |
6344 | } | |
6345 | } | |
6346 | return realdev_odp_port; | |
6347 | } | |
6348 | ||
6349 | static struct vlan_splinter * | |
6350 | vlandev_find(const struct ofproto_dpif *ofproto, uint16_t vlandev_ofp_port) | |
6351 | { | |
6352 | struct vlan_splinter *vsp; | |
6353 | ||
6354 | HMAP_FOR_EACH_WITH_HASH (vsp, vlandev_node, hash_int(vlandev_ofp_port, 0), | |
6355 | &ofproto->vlandev_map) { | |
6356 | if (vsp->vlandev_ofp_port == vlandev_ofp_port) { | |
6357 | return vsp; | |
6358 | } | |
6359 | } | |
6360 | ||
6361 | return NULL; | |
6362 | } | |
6363 | ||
40e05935 BP |
6364 | /* Returns the OpenFlow port number of the "real" device underlying the Linux |
6365 | * VLAN device with OpenFlow port number 'vlandev_ofp_port' and stores the | |
6366 | * VLAN VID of the Linux VLAN device in '*vid'. For example, given | |
6367 | * 'vlandev_ofp_port' of eth0.9, it would return the OpenFlow port number of | |
6368 | * eth0 and store 9 in '*vid'. | |
6369 | * | |
6370 | * Returns 0 and does not modify '*vid' if 'vlandev_ofp_port' is not a Linux | |
6371 | * VLAN device. Unless VLAN splinters are enabled, this is what this function | |
6372 | * always does.*/ | |
52a90c29 BP |
6373 | static uint16_t |
6374 | vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto, | |
40e05935 | 6375 | uint16_t vlandev_ofp_port, int *vid) |
52a90c29 BP |
6376 | { |
6377 | if (!hmap_is_empty(&ofproto->vlandev_map)) { | |
6378 | const struct vlan_splinter *vsp; | |
6379 | ||
6380 | vsp = vlandev_find(ofproto, vlandev_ofp_port); | |
6381 | if (vsp) { | |
6382 | if (vid) { | |
6383 | *vid = vsp->vid; | |
6384 | } | |
6385 | return vsp->realdev_ofp_port; | |
6386 | } | |
6387 | } | |
6388 | return 0; | |
6389 | } | |
6390 | ||
6391 | static void | |
6392 | vsp_remove(struct ofport_dpif *port) | |
6393 | { | |
6394 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
6395 | struct vlan_splinter *vsp; | |
6396 | ||
6397 | vsp = vlandev_find(ofproto, port->up.ofp_port); | |
6398 | if (vsp) { | |
6399 | hmap_remove(&ofproto->vlandev_map, &vsp->vlandev_node); | |
6400 | hmap_remove(&ofproto->realdev_vid_map, &vsp->realdev_vid_node); | |
6401 | free(vsp); | |
6402 | ||
6403 | port->realdev_ofp_port = 0; | |
6404 | } else { | |
6405 | VLOG_ERR("missing vlan device record"); | |
6406 | } | |
6407 | } | |
6408 | ||
6409 | static void | |
6410 | vsp_add(struct ofport_dpif *port, uint16_t realdev_ofp_port, int vid) | |
6411 | { | |
6412 | struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto); | |
6413 | ||
6414 | if (!vsp_vlandev_to_realdev(ofproto, port->up.ofp_port, NULL) | |
6415 | && (vsp_realdev_to_vlandev(ofproto, realdev_ofp_port, htons(vid)) | |
6416 | == realdev_ofp_port)) { | |
6417 | struct vlan_splinter *vsp; | |
6418 | ||
6419 | vsp = xmalloc(sizeof *vsp); | |
6420 | hmap_insert(&ofproto->vlandev_map, &vsp->vlandev_node, | |
6421 | hash_int(port->up.ofp_port, 0)); | |
6422 | hmap_insert(&ofproto->realdev_vid_map, &vsp->realdev_vid_node, | |
6423 | hash_realdev_vid(realdev_ofp_port, vid)); | |
6424 | vsp->realdev_ofp_port = realdev_ofp_port; | |
6425 | vsp->vlandev_ofp_port = port->up.ofp_port; | |
6426 | vsp->vid = vid; | |
6427 | ||
6428 | port->realdev_ofp_port = realdev_ofp_port; | |
6429 | } else { | |
6430 | VLOG_ERR("duplicate vlan device record"); | |
6431 | } | |
6432 | } | |
6433 | \f | |
abe529af BP |
6434 | const struct ofproto_class ofproto_dpif_class = { |
6435 | enumerate_types, | |
6436 | enumerate_names, | |
6437 | del, | |
6438 | alloc, | |
6439 | construct, | |
6440 | destruct, | |
6441 | dealloc, | |
6442 | run, | |
5fcc0d00 | 6443 | run_fast, |
abe529af BP |
6444 | wait, |
6445 | flush, | |
6c1491fb BP |
6446 | get_features, |
6447 | get_tables, | |
abe529af BP |
6448 | port_alloc, |
6449 | port_construct, | |
6450 | port_destruct, | |
6451 | port_dealloc, | |
6452 | port_modified, | |
6453 | port_reconfigured, | |
6454 | port_query_by_name, | |
6455 | port_add, | |
6456 | port_del, | |
6527c598 | 6457 | port_get_stats, |
abe529af BP |
6458 | port_dump_start, |
6459 | port_dump_next, | |
6460 | port_dump_done, | |
6461 | port_poll, | |
6462 | port_poll_wait, | |
6463 | port_is_lacp_current, | |
0ab6decf | 6464 | NULL, /* rule_choose_table */ |
abe529af BP |
6465 | rule_alloc, |
6466 | rule_construct, | |
6467 | rule_destruct, | |
6468 | rule_dealloc, | |
abe529af BP |
6469 | rule_get_stats, |
6470 | rule_execute, | |
6471 | rule_modify_actions, | |
7257b535 | 6472 | set_frag_handling, |
abe529af BP |
6473 | packet_out, |
6474 | set_netflow, | |
6475 | get_netflow_ids, | |
6476 | set_sflow, | |
6477 | set_cfm, | |
a5610457 | 6478 | get_cfm_fault, |
1de11730 | 6479 | get_cfm_remote_mpids, |
21f7563c JP |
6480 | set_stp, |
6481 | get_stp_status, | |
6482 | set_stp_port, | |
6483 | get_stp_port_status, | |
8b36f51e | 6484 | set_queues, |
abe529af BP |
6485 | bundle_set, |
6486 | bundle_remove, | |
6487 | mirror_set, | |
9d24de3b | 6488 | mirror_get_stats, |
abe529af BP |
6489 | set_flood_vlans, |
6490 | is_mirror_output_bundle, | |
8402c74b | 6491 | forward_bpdu_changed, |
e764773c | 6492 | set_mac_idle_time, |
52a90c29 | 6493 | set_realdev, |
abe529af | 6494 | }; |