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b0ec0f27 | 1 | /* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks |
c93b1d6a | 2 | * |
a14bc59f BP |
3 | * Licensed under the Apache License, Version 2.0 (the "License"); |
4 | * you may not use this file except in compliance with the License. | |
5 | * You may obtain a copy of the License at: | |
064af421 | 6 | * |
a14bc59f | 7 | * http://www.apache.org/licenses/LICENSE-2.0 |
064af421 | 8 | * |
a14bc59f BP |
9 | * Unless required by applicable law or agreed to in writing, software |
10 | * distributed under the License is distributed on an "AS IS" BASIS, | |
11 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | * See the License for the specific language governing permissions and | |
13 | * limitations under the License. | |
064af421 BP |
14 | */ |
15 | ||
16 | #include <config.h> | |
17 | #include "bridge.h" | |
10a24935 | 18 | #include "byte-order.h" |
064af421 BP |
19 | #include <assert.h> |
20 | #include <errno.h> | |
21 | #include <arpa/inet.h> | |
22 | #include <ctype.h> | |
23 | #include <inttypes.h> | |
9d82ec47 | 24 | #include <sys/socket.h> |
064af421 BP |
25 | #include <net/if.h> |
26 | #include <openflow/openflow.h> | |
27 | #include <signal.h> | |
28 | #include <stdlib.h> | |
29 | #include <strings.h> | |
30 | #include <sys/stat.h> | |
31 | #include <sys/socket.h> | |
7e40e21d | 32 | #include <sys/types.h> |
064af421 BP |
33 | #include <unistd.h> |
34 | #include "bitmap.h" | |
b31bcf60 | 35 | #include "cfm.h" |
cf3fad8a | 36 | #include "classifier.h" |
064af421 | 37 | #include "coverage.h" |
a7ff9bd7 | 38 | #include "daemon.h" |
064af421 BP |
39 | #include "dirs.h" |
40 | #include "dpif.h" | |
41 | #include "dynamic-string.h" | |
42 | #include "flow.h" | |
43 | #include "hash.h" | |
d9a8717a | 44 | #include "hmap.h" |
cd11000b | 45 | #include "jsonrpc.h" |
6aa74308 | 46 | #include "lacp.h" |
064af421 BP |
47 | #include "list.h" |
48 | #include "mac-learning.h" | |
49 | #include "netdev.h" | |
cdee00fd | 50 | #include "netlink.h" |
064af421 BP |
51 | #include "odp-util.h" |
52 | #include "ofp-print.h" | |
53 | #include "ofpbuf.h" | |
d65349ea | 54 | #include "ofproto/netflow.h" |
8cd4882f | 55 | #include "ofproto/ofproto.h" |
dd0d105c | 56 | #include "ovsdb-data.h" |
da285df4 | 57 | #include "packets.h" |
064af421 | 58 | #include "poll-loop.h" |
064af421 | 59 | #include "process.h" |
76343538 | 60 | #include "sha1.h" |
6c88d577 | 61 | #include "shash.h" |
064af421 | 62 | #include "socket-util.h" |
fe55ad15 | 63 | #include "stream-ssl.h" |
b3c01ed3 | 64 | #include "sset.h" |
064af421 | 65 | #include "svec.h" |
ce887677 | 66 | #include "system-stats.h" |
064af421 BP |
67 | #include "timeval.h" |
68 | #include "util.h" | |
da285df4 | 69 | #include "unixctl.h" |
064af421 | 70 | #include "vconn.h" |
b36682d8 | 71 | #include "vswitchd/vswitch-idl.h" |
064af421 | 72 | #include "xenserver.h" |
5136ce49 | 73 | #include "vlog.h" |
72b06300 | 74 | #include "sflow_api.h" |
064af421 | 75 | |
d98e6007 | 76 | VLOG_DEFINE_THIS_MODULE(bridge); |
064af421 | 77 | |
d76f09ea BP |
78 | COVERAGE_DEFINE(bridge_flush); |
79 | COVERAGE_DEFINE(bridge_process_flow); | |
ebe482fd EJ |
80 | COVERAGE_DEFINE(bridge_process_cfm); |
81 | COVERAGE_DEFINE(bridge_process_lacp); | |
d76f09ea | 82 | COVERAGE_DEFINE(bridge_reconfigure); |
750d79a5 | 83 | COVERAGE_DEFINE(bridge_lacp_update); |
d76f09ea | 84 | |
064af421 BP |
85 | struct dst { |
86 | uint16_t vlan; | |
87 | uint16_t dp_ifidx; | |
88 | }; | |
89 | ||
0c62a7ad BP |
90 | struct dst_set { |
91 | struct dst builtin[32]; | |
92 | struct dst *dsts; | |
93 | size_t n, allocated; | |
94 | }; | |
95 | ||
96 | static void dst_set_init(struct dst_set *); | |
97 | static void dst_set_add(struct dst_set *, const struct dst *); | |
98 | static void dst_set_free(struct dst_set *); | |
99 | ||
064af421 | 100 | struct iface { |
0c6aea3f | 101 | /* These members are always valid. */ |
83db7968 | 102 | struct list port_elem; /* Element in struct port's "ifaces" list. */ |
064af421 | 103 | struct port *port; /* Containing port. */ |
064af421 | 104 | char *name; /* Host network device name. */ |
064af421 | 105 | tag_type tag; /* Tag associated with this interface. */ |
064af421 | 106 | long long delay_expires; /* Time after which 'enabled' may change. */ |
064af421 | 107 | |
0c6aea3f | 108 | /* These members are valid only after bridge_reconfigure() causes them to |
1e0b752d | 109 | * be initialized. */ |
d9a8717a | 110 | struct hmap_node dp_ifidx_node; /* In struct bridge's "ifaces" hmap. */ |
0c6aea3f BP |
111 | int dp_ifidx; /* Index within kernel datapath. */ |
112 | struct netdev *netdev; /* Network device. */ | |
064af421 | 113 | bool enabled; /* May be chosen for flows? */ |
c835c3bf | 114 | bool up; /* Is the interface up? */ |
6cefe1da | 115 | const char *type; /* Usually same as cfg->type. */ |
76343538 | 116 | const struct ovsrec_interface *cfg; |
064af421 BP |
117 | }; |
118 | ||
119 | #define BOND_MASK 0xff | |
120 | struct bond_entry { | |
c17f0d5e | 121 | struct iface *iface; /* Assigned iface, or NULL if none. */ |
064af421 | 122 | uint64_t tx_bytes; /* Count of bytes recently transmitted. */ |
c0cb6f59 | 123 | tag_type tag; /* Tag for bond_entry<->iface association. */ |
064af421 BP |
124 | }; |
125 | ||
27dcaa1a | 126 | enum bond_mode { |
9f5073d8 EJ |
127 | BM_TCP, /* Transport Layer Load Balance. */ |
128 | BM_SLB, /* Source Load Balance. */ | |
27dcaa1a | 129 | BM_AB /* Active Backup. */ |
be02e7c3 EJ |
130 | }; |
131 | ||
064af421 BP |
132 | #define MAX_MIRRORS 32 |
133 | typedef uint32_t mirror_mask_t; | |
134 | #define MIRROR_MASK_C(X) UINT32_C(X) | |
135 | BUILD_ASSERT_DECL(sizeof(mirror_mask_t) * CHAR_BIT >= MAX_MIRRORS); | |
136 | struct mirror { | |
137 | struct bridge *bridge; | |
138 | size_t idx; | |
139 | char *name; | |
dd0d105c | 140 | struct uuid uuid; /* UUID of this "mirror" record in database. */ |
064af421 BP |
141 | |
142 | /* Selection criteria. */ | |
b3c01ed3 BP |
143 | struct sset src_ports; /* Source port names. */ |
144 | struct sset dst_ports; /* Destination port names. */ | |
064af421 BP |
145 | int *vlans; |
146 | size_t n_vlans; | |
147 | ||
148 | /* Output. */ | |
149 | struct port *out_port; | |
150 | int out_vlan; | |
151 | }; | |
152 | ||
153 | #define FLOOD_PORT ((struct port *) 1) /* The 'flood' output port. */ | |
154 | struct port { | |
155 | struct bridge *bridge; | |
8052fb14 BP |
156 | struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */ |
157 | char *name; | |
158 | ||
064af421 | 159 | int vlan; /* -1=trunk port, else a 12-bit VLAN ID. */ |
3e9c481c BP |
160 | unsigned long *trunks; /* Bitmap of trunked VLANs, if 'vlan' == -1. |
161 | * NULL if all VLANs are trunked. */ | |
1e0b752d | 162 | const struct ovsrec_port *cfg; |
064af421 | 163 | |
e5ed989d EJ |
164 | /* Monitoring. */ |
165 | struct netdev_monitor *monitor; /* Tracks carrier. NULL if miimon. */ | |
166 | long long int miimon_interval; /* Miimon status refresh interval. */ | |
167 | long long int miimon_next_update; /* Time of next miimon update. */ | |
168 | ||
064af421 BP |
169 | /* An ordinary bridge port has 1 interface. |
170 | * A bridge port for bonding has at least 2 interfaces. */ | |
83db7968 BP |
171 | struct list ifaces; /* List of "struct iface"s. */ |
172 | size_t n_ifaces; /* list_size(ifaces). */ | |
064af421 BP |
173 | |
174 | /* Bonding info. */ | |
27dcaa1a | 175 | enum bond_mode bond_mode; /* Type of the bond. BM_SLB is the default. */ |
990cda85 | 176 | struct iface *active_iface; /* iface on which bcasts accepted, or NULL. */ |
064af421 BP |
177 | tag_type no_ifaces_tag; /* Tag for flows when all ifaces disabled. */ |
178 | int updelay, downdelay; /* Delay before iface goes up/down, in ms. */ | |
76343538 | 179 | bool bond_fake_iface; /* Fake a bond interface for legacy compat? */ |
e5ae7df8 | 180 | long long int bond_next_fake_iface_update; /* Time of next update. */ |
be02e7c3 | 181 | |
c25c91fd | 182 | /* LACP information. */ |
6aa74308 | 183 | struct lacp *lacp; /* LACP object. NULL if LACP is disabled. */ |
c25c91fd | 184 | |
be02e7c3 EJ |
185 | /* SLB specific bonding info. */ |
186 | struct bond_entry *bond_hash; /* An array of (BOND_MASK + 1) elements. */ | |
c8143c88 BP |
187 | int bond_rebalance_interval; /* Interval between rebalances, in ms. */ |
188 | long long int bond_next_rebalance; /* Next rebalancing time. */ | |
064af421 BP |
189 | |
190 | /* Port mirroring info. */ | |
191 | mirror_mask_t src_mirrors; /* Mirrors triggered when packet received. */ | |
192 | mirror_mask_t dst_mirrors; /* Mirrors triggered when packet sent. */ | |
193 | bool is_mirror_output_port; /* Does port mirroring send frames here? */ | |
064af421 BP |
194 | }; |
195 | ||
064af421 BP |
196 | struct bridge { |
197 | struct list node; /* Node in global list of bridges. */ | |
198 | char *name; /* User-specified arbitrary name. */ | |
93dfc067 | 199 | struct mac_learning *ml; /* MAC learning table. */ |
abe457eb | 200 | uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */ |
064af421 | 201 | uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */ |
1e0b752d | 202 | const struct ovsrec_bridge *cfg; |
064af421 | 203 | |
064af421 BP |
204 | /* OpenFlow switch processing. */ |
205 | struct ofproto *ofproto; /* OpenFlow switch. */ | |
206 | ||
207 | /* Kernel datapath information. */ | |
c228a364 | 208 | struct dpif *dpif; /* Datapath. */ |
d9a8717a | 209 | struct hmap ifaces; /* Contains "struct iface"s. */ |
064af421 BP |
210 | |
211 | /* Bridge ports. */ | |
8052fb14 | 212 | struct hmap ports; /* "struct port"s indexed by name. */ |
4a1ee6ae | 213 | struct shash iface_by_name; /* "struct iface"s indexed by name. */ |
064af421 BP |
214 | |
215 | /* Bonding. */ | |
216 | bool has_bonded_ports; | |
064af421 BP |
217 | |
218 | /* Flow tracking. */ | |
219 | bool flush; | |
220 | ||
064af421 BP |
221 | /* Port mirroring. */ |
222 | struct mirror *mirrors[MAX_MIRRORS]; | |
064af421 BP |
223 | }; |
224 | ||
225 | /* List of all bridges. */ | |
226 | static struct list all_bridges = LIST_INITIALIZER(&all_bridges); | |
227 | ||
c5187f17 BP |
228 | /* OVSDB IDL used to obtain configuration. */ |
229 | static struct ovsdb_idl *idl; | |
230 | ||
cd0cd65f BP |
231 | /* Each time this timer expires, the bridge fetches systems and interface |
232 | * statistics and pushes them into the database. */ | |
233 | #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */ | |
234 | static long long int stats_timer = LLONG_MIN; | |
018f1525 | 235 | |
6586adf5 EJ |
236 | /* Stores the time after which CFM statistics may be written to the database. |
237 | * Only updated when changes to the database require rate limiting. */ | |
238 | #define CFM_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */ | |
239 | static long long int cfm_limiter = LLONG_MIN; | |
240 | ||
1a6f1e2a | 241 | static struct bridge *bridge_create(const struct ovsrec_bridge *br_cfg); |
064af421 BP |
242 | static void bridge_destroy(struct bridge *); |
243 | static struct bridge *bridge_lookup(const char *name); | |
8ca79daa | 244 | static unixctl_cb_func bridge_unixctl_dump_flows; |
fa05809b | 245 | static unixctl_cb_func bridge_unixctl_reconnect; |
064af421 | 246 | static int bridge_run_one(struct bridge *); |
1a048029 | 247 | static size_t bridge_get_controllers(const struct bridge *br, |
76ce9432 | 248 | struct ovsrec_controller ***controllersp); |
1a048029 JP |
249 | static void bridge_reconfigure_one(struct bridge *); |
250 | static void bridge_reconfigure_remotes(struct bridge *, | |
11bbff1b BP |
251 | const struct sockaddr_in *managers, |
252 | size_t n_managers); | |
76343538 | 253 | static void bridge_get_all_ifaces(const struct bridge *, struct shash *ifaces); |
064af421 BP |
254 | static void bridge_fetch_dp_ifaces(struct bridge *); |
255 | static void bridge_flush(struct bridge *); | |
256 | static void bridge_pick_local_hw_addr(struct bridge *, | |
257 | uint8_t ea[ETH_ADDR_LEN], | |
07c318f4 | 258 | struct iface **hw_addr_iface); |
064af421 BP |
259 | static uint64_t bridge_pick_datapath_id(struct bridge *, |
260 | const uint8_t bridge_ea[ETH_ADDR_LEN], | |
07c318f4 | 261 | struct iface *hw_addr_iface); |
064af421 BP |
262 | static uint64_t dpid_from_hash(const void *, size_t nbytes); |
263 | ||
8ca79daa | 264 | static unixctl_cb_func bridge_unixctl_fdb_show; |
20c8e971 | 265 | static unixctl_cb_func cfm_unixctl_show; |
e8fe3026 | 266 | static unixctl_cb_func qos_unixctl_show; |
8c4c1387 | 267 | |
da285df4 | 268 | static void bond_init(void); |
21dcb94f EJ |
269 | static void bond_run(struct port *); |
270 | static void bond_wait(struct port *); | |
064af421 | 271 | static void bond_rebalance_port(struct port *); |
2303f3b2 | 272 | static void bond_send_learning_packets(struct port *); |
8b2a2f4a | 273 | static void bond_enable_slave(struct iface *iface, bool enable); |
064af421 | 274 | |
21dcb94f EJ |
275 | static void port_run(struct port *); |
276 | static void port_wait(struct port *); | |
76343538 BP |
277 | static struct port *port_create(struct bridge *, const char *name); |
278 | static void port_reconfigure(struct port *, const struct ovsrec_port *); | |
4a1ee6ae | 279 | static void port_del_ifaces(struct port *, const struct ovsrec_port *); |
064af421 BP |
280 | static void port_destroy(struct port *); |
281 | static struct port *port_lookup(const struct bridge *, const char *name); | |
da285df4 | 282 | static struct iface *port_lookup_iface(const struct port *, const char *name); |
83db7968 | 283 | static struct iface *port_get_an_iface(const struct port *); |
064af421 BP |
284 | static struct port *port_from_dp_ifidx(const struct bridge *, |
285 | uint16_t dp_ifidx); | |
0c6aea3f | 286 | static void port_update_bonding(struct port *); |
c25c91fd | 287 | static void port_update_lacp(struct port *); |
064af421 | 288 | |
dd0d105c | 289 | static void mirror_create(struct bridge *, struct ovsrec_mirror *); |
064af421 BP |
290 | static void mirror_destroy(struct mirror *); |
291 | static void mirror_reconfigure(struct bridge *); | |
37e7f427 | 292 | static void mirror_reconfigure_one(struct mirror *, struct ovsrec_mirror *); |
064af421 BP |
293 | static bool vlan_is_mirrored(const struct mirror *, int vlan); |
294 | ||
d295e8e9 | 295 | static struct iface *iface_create(struct port *port, |
a740f0de | 296 | const struct ovsrec_interface *if_cfg); |
064af421 BP |
297 | static void iface_destroy(struct iface *); |
298 | static struct iface *iface_lookup(const struct bridge *, const char *name); | |
e8fe3026 | 299 | static struct iface *iface_find(const char *name); |
064af421 BP |
300 | static struct iface *iface_from_dp_ifidx(const struct bridge *, |
301 | uint16_t dp_ifidx); | |
52df17e7 | 302 | static void iface_set_mac(struct iface *); |
bcd49a45 | 303 | static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport); |
c1c9c9c4 | 304 | static void iface_update_qos(struct iface *, const struct ovsrec_qos *); |
b31bcf60 | 305 | static void iface_update_cfm(struct iface *); |
6586adf5 | 306 | static bool iface_refresh_cfm_stats(struct iface *iface); |
0b8024eb BP |
307 | static void iface_update_carrier(struct iface *); |
308 | static bool iface_get_carrier(const struct iface *); | |
064af421 | 309 | |
43776b8f BP |
310 | static void shash_from_ovs_idl_map(char **keys, char **values, size_t n, |
311 | struct shash *); | |
ea763e0e EJ |
312 | static void shash_to_ovs_idl_map(struct shash *, |
313 | char ***keys, char ***values, size_t *n); | |
314 | ||
064af421 BP |
315 | /* Hooks into ofproto processing. */ |
316 | static struct ofhooks bridge_ofhooks; | |
317 | \f | |
318 | /* Public functions. */ | |
319 | ||
c5187f17 BP |
320 | /* Initializes the bridge module, configuring it to obtain its configuration |
321 | * from an OVSDB server accessed over 'remote', which should be a string in a | |
322 | * form acceptable to ovsdb_idl_create(). */ | |
064af421 | 323 | void |
c5187f17 BP |
324 | bridge_init(const char *remote) |
325 | { | |
326 | /* Create connection to database. */ | |
ef73f86c | 327 | idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true); |
c5187f17 | 328 | |
ef73f86c BP |
329 | ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg); |
330 | ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics); | |
e85bbd75 BP |
331 | ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids); |
332 | ||
333 | ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids); | |
334 | ||
335 | ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids); | |
336 | ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge); | |
337 | ||
ef73f86c BP |
338 | ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport); |
339 | ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics); | |
e85bbd75 BP |
340 | ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids); |
341 | ||
c5187f17 BP |
342 | /* Register unixctl commands. */ |
343 | unixctl_command_register("fdb/show", bridge_unixctl_fdb_show, NULL); | |
20c8e971 | 344 | unixctl_command_register("cfm/show", cfm_unixctl_show, NULL); |
e8fe3026 | 345 | unixctl_command_register("qos/show", qos_unixctl_show, NULL); |
c5187f17 BP |
346 | unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows, |
347 | NULL); | |
fa05809b BP |
348 | unixctl_command_register("bridge/reconnect", bridge_unixctl_reconnect, |
349 | NULL); | |
6aa74308 | 350 | lacp_init(); |
c5187f17 BP |
351 | bond_init(); |
352 | } | |
353 | ||
ee45ad81 BP |
354 | void |
355 | bridge_exit(void) | |
356 | { | |
357 | struct bridge *br, *next_br; | |
358 | ||
359 | LIST_FOR_EACH_SAFE (br, next_br, node, &all_bridges) { | |
360 | bridge_destroy(br); | |
361 | } | |
362 | ovsdb_idl_destroy(idl); | |
363 | } | |
364 | ||
c5187f17 BP |
365 | /* Performs configuration that is only necessary once at ovs-vswitchd startup, |
366 | * but for which the ovs-vswitchd configuration 'cfg' is required. */ | |
367 | static void | |
368 | bridge_configure_once(const struct ovsrec_open_vswitch *cfg) | |
064af421 | 369 | { |
c5187f17 | 370 | static bool already_configured_once; |
9759479a | 371 | struct sset bridge_names; |
d0c23a1a BP |
372 | struct sset dpif_names, dpif_types; |
373 | const char *type; | |
d3d22744 | 374 | size_t i; |
da285df4 | 375 | |
c5187f17 BP |
376 | /* Only do this once per ovs-vswitchd run. */ |
377 | if (already_configured_once) { | |
378 | return; | |
379 | } | |
380 | already_configured_once = true; | |
8c4c1387 | 381 | |
cd0cd65f | 382 | stats_timer = time_msec() + STATS_INTERVAL; |
018f1525 | 383 | |
c5187f17 | 384 | /* Get all the configured bridges' names from 'cfg' into 'bridge_names'. */ |
9759479a | 385 | sset_init(&bridge_names); |
76343538 | 386 | for (i = 0; i < cfg->n_bridges; i++) { |
9759479a | 387 | sset_add(&bridge_names, cfg->bridges[i]->name); |
76343538 | 388 | } |
76343538 | 389 | |
c5187f17 BP |
390 | /* Iterate over all system dpifs and delete any of them that do not appear |
391 | * in 'cfg'. */ | |
d0c23a1a BP |
392 | sset_init(&dpif_names); |
393 | sset_init(&dpif_types); | |
1a6f1e2a | 394 | dp_enumerate_types(&dpif_types); |
d0c23a1a BP |
395 | SSET_FOR_EACH (type, &dpif_types) { |
396 | const char *name; | |
064af421 | 397 | |
d0c23a1a | 398 | dp_enumerate_names(type, &dpif_names); |
d3d22744 | 399 | |
3d8c9535 | 400 | /* Delete each dpif whose name is not in 'bridge_names'. */ |
d0c23a1a | 401 | SSET_FOR_EACH (name, &dpif_names) { |
9759479a | 402 | if (!sset_contains(&bridge_names, name)) { |
3d8c9535 BP |
403 | struct dpif *dpif; |
404 | int retval; | |
405 | ||
d0c23a1a | 406 | retval = dpif_open(name, type, &dpif); |
3d8c9535 BP |
407 | if (!retval) { |
408 | dpif_delete(dpif); | |
409 | dpif_close(dpif); | |
d3d22744 | 410 | } |
064af421 | 411 | } |
064af421 BP |
412 | } |
413 | } | |
9759479a | 414 | sset_destroy(&bridge_names); |
d0c23a1a BP |
415 | sset_destroy(&dpif_names); |
416 | sset_destroy(&dpif_types); | |
064af421 BP |
417 | } |
418 | ||
64d64dd7 | 419 | /* Callback for iterate_and_prune_ifaces(). */ |
0c6aea3f | 420 | static bool |
64d64dd7 | 421 | check_iface(struct bridge *br, struct iface *iface, void *aux OVS_UNUSED) |
0c6aea3f | 422 | { |
149f577a | 423 | if (!iface->netdev) { |
64d64dd7 BP |
424 | /* We already reported a related error, don't bother duplicating it. */ |
425 | return false; | |
0c6aea3f | 426 | } |
149f577a | 427 | |
64d64dd7 | 428 | if (iface->dp_ifidx < 0) { |
6ae39834 BP |
429 | VLOG_ERR("%s interface not in %s, dropping", |
430 | iface->name, dpif_name(br->dpif)); | |
431 | return false; | |
432 | } | |
64d64dd7 BP |
433 | |
434 | VLOG_DBG("%s has interface %s on port %d", dpif_name(br->dpif), | |
435 | iface->name, iface->dp_ifidx); | |
436 | return true; | |
6ae39834 BP |
437 | } |
438 | ||
64d64dd7 | 439 | /* Callback for iterate_and_prune_ifaces(). */ |
795fe1fb | 440 | static bool |
67a4917b BP |
441 | set_iface_properties(struct bridge *br OVS_UNUSED, struct iface *iface, |
442 | void *aux OVS_UNUSED) | |
795fe1fb | 443 | { |
4d678233 | 444 | /* Set policing attributes. */ |
76343538 BP |
445 | netdev_set_policing(iface->netdev, |
446 | iface->cfg->ingress_policing_rate, | |
447 | iface->cfg->ingress_policing_burst); | |
4d678233 BP |
448 | |
449 | /* Set MAC address of internal interfaces other than the local | |
450 | * interface. */ | |
6cefe1da | 451 | if (iface->dp_ifidx != ODPP_LOCAL && !strcmp(iface->type, "internal")) { |
4d678233 BP |
452 | iface_set_mac(iface); |
453 | } | |
454 | ||
795fe1fb BP |
455 | return true; |
456 | } | |
457 | ||
6ae39834 BP |
458 | /* Calls 'cb' for each interfaces in 'br', passing along the 'aux' argument. |
459 | * Deletes from 'br' all the interfaces for which 'cb' returns false, and then | |
460 | * deletes from 'br' any ports that no longer have any interfaces. */ | |
461 | static void | |
462 | iterate_and_prune_ifaces(struct bridge *br, | |
463 | bool (*cb)(struct bridge *, struct iface *, | |
464 | void *aux), | |
465 | void *aux) | |
466 | { | |
8052fb14 | 467 | struct port *port, *next_port; |
6ae39834 | 468 | |
8052fb14 BP |
469 | HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) { |
470 | struct iface *iface, *next_iface; | |
83db7968 | 471 | |
8052fb14 | 472 | LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) { |
83db7968 | 473 | if (!cb(br, iface, aux)) { |
bcd49a45 | 474 | iface_set_ofport(iface->cfg, -1); |
6ae39834 BP |
475 | iface_destroy(iface); |
476 | } | |
477 | } | |
478 | ||
8052fb14 | 479 | if (!port->n_ifaces) { |
cca46d33 | 480 | VLOG_WARN("%s port has no interfaces, dropping", port->name); |
6ae39834 BP |
481 | port_destroy(port); |
482 | } | |
483 | } | |
484 | } | |
485 | ||
cd11000b BP |
486 | /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP |
487 | * addresses and ports into '*managersp' and '*n_managersp'. The caller is | |
488 | * responsible for freeing '*managersp' (with free()). | |
489 | * | |
490 | * You may be asking yourself "why does ovs-vswitchd care?", because | |
491 | * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd | |
492 | * should not be and in fact is not directly involved in that. But | |
493 | * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so | |
494 | * it has to tell in-band control where the managers are to enable that. | |
94db5407 | 495 | * (Thus, only managers connected in-band are collected.) |
cd11000b BP |
496 | */ |
497 | static void | |
94db5407 BP |
498 | collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg, |
499 | struct sockaddr_in **managersp, size_t *n_managersp) | |
cd11000b BP |
500 | { |
501 | struct sockaddr_in *managers = NULL; | |
502 | size_t n_managers = 0; | |
b3c01ed3 | 503 | struct sset targets; |
94db5407 BP |
504 | size_t i; |
505 | ||
289df16d AE |
506 | /* Collect all of the potential targets from the "targets" columns of the |
507 | * rows pointed to by "manager_options", excluding any that are | |
508 | * out-of-band. */ | |
b3c01ed3 | 509 | sset_init(&targets); |
94db5407 BP |
510 | for (i = 0; i < ovs_cfg->n_manager_options; i++) { |
511 | struct ovsrec_manager *m = ovs_cfg->manager_options[i]; | |
512 | ||
513 | if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) { | |
b3c01ed3 | 514 | sset_find_and_delete(&targets, m->target); |
94db5407 | 515 | } else { |
b3c01ed3 | 516 | sset_add(&targets, m->target); |
94db5407 BP |
517 | } |
518 | } | |
cd11000b | 519 | |
94db5407 | 520 | /* Now extract the targets' IP addresses. */ |
b3c01ed3 BP |
521 | if (!sset_is_empty(&targets)) { |
522 | const char *target; | |
cd11000b | 523 | |
b3c01ed3 BP |
524 | managers = xmalloc(sset_count(&targets) * sizeof *managers); |
525 | SSET_FOR_EACH (target, &targets) { | |
94db5407 | 526 | struct sockaddr_in *sin = &managers[n_managers]; |
cd11000b | 527 | |
94db5407 BP |
528 | if ((!strncmp(target, "tcp:", 4) |
529 | && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) || | |
530 | (!strncmp(target, "ssl:", 4) | |
531 | && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) { | |
cd11000b BP |
532 | n_managers++; |
533 | } | |
534 | } | |
535 | } | |
b3c01ed3 | 536 | sset_destroy(&targets); |
cd11000b BP |
537 | |
538 | *managersp = managers; | |
539 | *n_managersp = n_managers; | |
540 | } | |
541 | ||
c5187f17 | 542 | static void |
76343538 | 543 | bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg) |
064af421 | 544 | { |
76343538 BP |
545 | struct shash old_br, new_br; |
546 | struct shash_node *node; | |
064af421 | 547 | struct bridge *br, *next; |
cd11000b BP |
548 | struct sockaddr_in *managers; |
549 | size_t n_managers; | |
6ae39834 | 550 | size_t i; |
72b06300 | 551 | int sflow_bridge_number; |
064af421 BP |
552 | |
553 | COVERAGE_INC(bridge_reconfigure); | |
554 | ||
94db5407 | 555 | collect_in_band_managers(ovs_cfg, &managers, &n_managers); |
cd11000b | 556 | |
632d136c | 557 | /* Collect old and new bridges. */ |
76343538 BP |
558 | shash_init(&old_br); |
559 | shash_init(&new_br); | |
4e8e4213 | 560 | LIST_FOR_EACH (br, node, &all_bridges) { |
76343538 BP |
561 | shash_add(&old_br, br->name, br); |
562 | } | |
563 | for (i = 0; i < ovs_cfg->n_bridges; i++) { | |
564 | const struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i]; | |
565 | if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) { | |
566 | VLOG_WARN("more than one bridge named %s", br_cfg->name); | |
567 | } | |
064af421 | 568 | } |
064af421 BP |
569 | |
570 | /* Get rid of deleted bridges and add new bridges. */ | |
4e8e4213 | 571 | LIST_FOR_EACH_SAFE (br, next, node, &all_bridges) { |
76343538 BP |
572 | struct ovsrec_bridge *br_cfg = shash_find_data(&new_br, br->name); |
573 | if (br_cfg) { | |
574 | br->cfg = br_cfg; | |
575 | } else { | |
064af421 BP |
576 | bridge_destroy(br); |
577 | } | |
578 | } | |
76343538 BP |
579 | SHASH_FOR_EACH (node, &new_br) { |
580 | const char *br_name = node->name; | |
581 | const struct ovsrec_bridge *br_cfg = node->data; | |
1a6f1e2a JG |
582 | br = shash_find_data(&old_br, br_name); |
583 | if (br) { | |
584 | /* If the bridge datapath type has changed, we need to tear it | |
585 | * down and recreate. */ | |
586 | if (strcmp(br->cfg->datapath_type, br_cfg->datapath_type)) { | |
587 | bridge_destroy(br); | |
588 | bridge_create(br_cfg); | |
fa33d64a | 589 | } |
1a6f1e2a JG |
590 | } else { |
591 | bridge_create(br_cfg); | |
064af421 BP |
592 | } |
593 | } | |
76343538 BP |
594 | shash_destroy(&old_br); |
595 | shash_destroy(&new_br); | |
064af421 | 596 | |
064af421 | 597 | /* Reconfigure all bridges. */ |
4e8e4213 | 598 | LIST_FOR_EACH (br, node, &all_bridges) { |
1a048029 | 599 | bridge_reconfigure_one(br); |
064af421 BP |
600 | } |
601 | ||
602 | /* Add and delete ports on all datapaths. | |
603 | * | |
604 | * The kernel will reject any attempt to add a given port to a datapath if | |
605 | * that port already belongs to a different datapath, so we must do all | |
606 | * port deletions before any port additions. */ | |
4e8e4213 | 607 | LIST_FOR_EACH (br, node, &all_bridges) { |
b0ec0f27 | 608 | struct dpif_port_dump dump; |
76343538 | 609 | struct shash want_ifaces; |
4c738a8d | 610 | struct dpif_port dpif_port; |
064af421 | 611 | |
064af421 | 612 | bridge_get_all_ifaces(br, &want_ifaces); |
4c738a8d BP |
613 | DPIF_PORT_FOR_EACH (&dpif_port, &dump, br->dpif) { |
614 | if (!shash_find(&want_ifaces, dpif_port.name) | |
615 | && strcmp(dpif_port.name, br->name)) { | |
616 | int retval = dpif_port_del(br->dpif, dpif_port.port_no); | |
064af421 | 617 | if (retval) { |
cca46d33 BP |
618 | VLOG_WARN("failed to remove %s interface from %s: %s", |
619 | dpif_port.name, dpif_name(br->dpif), | |
620 | strerror(retval)); | |
064af421 BP |
621 | } |
622 | } | |
623 | } | |
76343538 | 624 | shash_destroy(&want_ifaces); |
064af421 | 625 | } |
4e8e4213 | 626 | LIST_FOR_EACH (br, node, &all_bridges) { |
76343538 | 627 | struct shash cur_ifaces, want_ifaces; |
b0ec0f27 | 628 | struct dpif_port_dump dump; |
4c738a8d | 629 | struct dpif_port dpif_port; |
064af421 | 630 | |
76343538 | 631 | /* Get the set of interfaces currently in this datapath. */ |
76343538 | 632 | shash_init(&cur_ifaces); |
4c738a8d | 633 | DPIF_PORT_FOR_EACH (&dpif_port, &dump, br->dpif) { |
b0ec0f27 | 634 | struct dpif_port *port_info = xmalloc(sizeof *port_info); |
4c738a8d BP |
635 | dpif_port_clone(port_info, &dpif_port); |
636 | shash_add(&cur_ifaces, dpif_port.name, port_info); | |
064af421 | 637 | } |
064af421 | 638 | |
76343538 BP |
639 | /* Get the set of interfaces we want on this datapath. */ |
640 | bridge_get_all_ifaces(br, &want_ifaces); | |
6c88d577 | 641 | |
3a6ccc8c | 642 | hmap_clear(&br->ifaces); |
76343538 BP |
643 | SHASH_FOR_EACH (node, &want_ifaces) { |
644 | const char *if_name = node->name; | |
645 | struct iface *iface = node->data; | |
b0ec0f27 BP |
646 | struct dpif_port *dpif_port; |
647 | const char *type; | |
3a6ccc8c BP |
648 | int error; |
649 | ||
b0ec0f27 BP |
650 | type = iface ? iface->type : "internal"; |
651 | dpif_port = shash_find_data(&cur_ifaces, if_name); | |
652 | ||
3a6ccc8c BP |
653 | /* If we have a port or a netdev already, and it's not the type we |
654 | * want, then delete the port (if any) and close the netdev (if | |
655 | * any). */ | |
c3827f61 BP |
656 | if ((dpif_port && strcmp(dpif_port->type, type)) |
657 | || (iface && iface->netdev | |
658 | && strcmp(type, netdev_get_type(iface->netdev)))) { | |
3a6ccc8c | 659 | if (dpif_port) { |
b0ec0f27 | 660 | error = ofproto_port_del(br->ofproto, dpif_port->port_no); |
3a6ccc8c BP |
661 | if (error) { |
662 | continue; | |
663 | } | |
664 | dpif_port = NULL; | |
76343538 | 665 | } |
3a6ccc8c BP |
666 | if (iface) { |
667 | netdev_close(iface->netdev); | |
668 | iface->netdev = NULL; | |
669 | } | |
670 | } | |
76343538 | 671 | |
c3827f61 BP |
672 | /* If the port doesn't exist or we don't have the netdev open, |
673 | * we need to do more work. */ | |
674 | if (!dpif_port || (iface && !iface->netdev)) { | |
675 | struct netdev_options options; | |
676 | struct netdev *netdev; | |
677 | struct shash args; | |
678 | ||
679 | /* First open the network device. */ | |
680 | options.name = if_name; | |
681 | options.type = type; | |
682 | options.args = &args; | |
683 | options.ethertype = NETDEV_ETH_TYPE_NONE; | |
684 | ||
685 | shash_init(&args); | |
686 | if (iface) { | |
6b4186af | 687 | shash_from_ovs_idl_map(iface->cfg->key_options, |
fe4838bc JP |
688 | iface->cfg->value_options, |
689 | iface->cfg->n_options, &args); | |
82057f51 | 690 | } |
c3827f61 BP |
691 | error = netdev_open(&options, &netdev); |
692 | shash_destroy(&args); | |
82057f51 | 693 | |
c3827f61 BP |
694 | if (error) { |
695 | VLOG_WARN("could not open network device %s (%s)", | |
696 | if_name, strerror(error)); | |
3a6ccc8c | 697 | continue; |
76343538 | 698 | } |
3a6ccc8c | 699 | |
c3827f61 BP |
700 | /* Then add the port if we haven't already. */ |
701 | if (!dpif_port) { | |
702 | error = dpif_port_add(br->dpif, netdev, NULL); | |
3a6ccc8c | 703 | if (error) { |
c3827f61 BP |
704 | netdev_close(netdev); |
705 | if (error == EFBIG) { | |
706 | VLOG_ERR("ran out of valid port numbers on %s", | |
707 | dpif_name(br->dpif)); | |
708 | break; | |
709 | } else { | |
cca46d33 BP |
710 | VLOG_WARN("failed to add %s interface to %s: %s", |
711 | if_name, dpif_name(br->dpif), | |
712 | strerror(error)); | |
c3827f61 BP |
713 | continue; |
714 | } | |
3a6ccc8c BP |
715 | } |
716 | } | |
c3827f61 BP |
717 | |
718 | /* Update 'iface'. */ | |
719 | if (iface) { | |
720 | iface->netdev = netdev; | |
0b8024eb | 721 | iface->enabled = iface_get_carrier(iface); |
c835c3bf | 722 | iface->up = iface->enabled; |
c3827f61 BP |
723 | } |
724 | } else if (iface && iface->netdev) { | |
725 | struct shash args; | |
726 | ||
727 | shash_init(&args); | |
6b4186af | 728 | shash_from_ovs_idl_map(iface->cfg->key_options, |
fe4838bc JP |
729 | iface->cfg->value_options, |
730 | iface->cfg->n_options, &args); | |
6d9e6eb4 | 731 | netdev_set_config(iface->netdev, &args); |
c3827f61 | 732 | shash_destroy(&args); |
3a6ccc8c | 733 | } |
064af421 | 734 | } |
76343538 | 735 | shash_destroy(&want_ifaces); |
b0ec0f27 BP |
736 | |
737 | SHASH_FOR_EACH (node, &cur_ifaces) { | |
738 | struct dpif_port *port_info = node->data; | |
4c738a8d | 739 | dpif_port_destroy(port_info); |
b0ec0f27 BP |
740 | free(port_info); |
741 | } | |
742 | shash_destroy(&cur_ifaces); | |
064af421 | 743 | } |
72b06300 | 744 | sflow_bridge_number = 0; |
4e8e4213 | 745 | LIST_FOR_EACH (br, node, &all_bridges) { |
090f7f50 | 746 | uint8_t ea[ETH_ADDR_LEN]; |
064af421 | 747 | uint64_t dpid; |
07c318f4 BP |
748 | struct iface *local_iface; |
749 | struct iface *hw_addr_iface; | |
093e47f4 | 750 | char *dpid_string; |
064af421 | 751 | |
064af421 | 752 | bridge_fetch_dp_ifaces(br); |
064af421 | 753 | |
64d64dd7 | 754 | iterate_and_prune_ifaces(br, check_iface, NULL); |
064af421 BP |
755 | |
756 | /* Pick local port hardware address, datapath ID. */ | |
07c318f4 | 757 | bridge_pick_local_hw_addr(br, ea, &hw_addr_iface); |
27b3a6e0 | 758 | local_iface = iface_from_dp_ifidx(br, ODPP_LOCAL); |
064af421 | 759 | if (local_iface) { |
07c318f4 | 760 | int error = netdev_set_etheraddr(local_iface->netdev, ea); |
064af421 BP |
761 | if (error) { |
762 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
763 | VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge " | |
764 | "Ethernet address: %s", | |
765 | br->name, strerror(error)); | |
766 | } | |
767 | } | |
abe457eb | 768 | memcpy(br->ea, ea, ETH_ADDR_LEN); |
064af421 | 769 | |
07c318f4 | 770 | dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface); |
064af421 BP |
771 | ofproto_set_datapath_id(br->ofproto, dpid); |
772 | ||
fc09119a | 773 | dpid_string = xasprintf("%016"PRIx64, dpid); |
093e47f4 BP |
774 | ovsrec_bridge_set_datapath_id(br->cfg, dpid_string); |
775 | free(dpid_string); | |
776 | ||
064af421 | 777 | /* Set NetFlow configuration on this bridge. */ |
76343538 BP |
778 | if (br->cfg->netflow) { |
779 | struct ovsrec_netflow *nf_cfg = br->cfg->netflow; | |
780 | struct netflow_options opts; | |
781 | ||
782 | memset(&opts, 0, sizeof opts); | |
783 | ||
784 | dpif_get_netflow_ids(br->dpif, &opts.engine_type, &opts.engine_id); | |
785 | if (nf_cfg->engine_type) { | |
cd746526 | 786 | opts.engine_type = *nf_cfg->engine_type; |
76343538 BP |
787 | } |
788 | if (nf_cfg->engine_id) { | |
cd746526 | 789 | opts.engine_id = *nf_cfg->engine_id; |
76343538 BP |
790 | } |
791 | ||
792 | opts.active_timeout = nf_cfg->active_timeout; | |
793 | if (!opts.active_timeout) { | |
794 | opts.active_timeout = -1; | |
795 | } else if (opts.active_timeout < 0) { | |
e9e2856e JG |
796 | VLOG_WARN("bridge %s: active timeout interval set to negative " |
797 | "value, using default instead (%d seconds)", br->name, | |
798 | NF_ACTIVE_TIMEOUT_DEFAULT); | |
799 | opts.active_timeout = -1; | |
76343538 BP |
800 | } |
801 | ||
802 | opts.add_id_to_iface = nf_cfg->add_id_to_interface; | |
803 | if (opts.add_id_to_iface) { | |
804 | if (opts.engine_id > 0x7f) { | |
805 | VLOG_WARN("bridge %s: netflow port mangling may conflict " | |
806 | "with another vswitch, choose an engine id less " | |
807 | "than 128", br->name); | |
808 | } | |
8052fb14 | 809 | if (hmap_count(&br->ports) > 508) { |
76343538 BP |
810 | VLOG_WARN("bridge %s: netflow port mangling will conflict " |
811 | "with another port when more than 508 ports are " | |
812 | "used", br->name); | |
813 | } | |
814 | } | |
815 | ||
81e2083f BP |
816 | sset_init(&opts.collectors); |
817 | sset_add_array(&opts.collectors, | |
818 | nf_cfg->targets, nf_cfg->n_targets); | |
76343538 | 819 | if (ofproto_set_netflow(br->ofproto, &opts)) { |
d295e8e9 | 820 | VLOG_ERR("bridge %s: problem setting netflow collectors", |
76343538 BP |
821 | br->name); |
822 | } | |
81e2083f | 823 | sset_destroy(&opts.collectors); |
76343538 BP |
824 | } else { |
825 | ofproto_set_netflow(br->ofproto, NULL); | |
826 | } | |
064af421 | 827 | |
a4af0040 JP |
828 | /* Set sFlow configuration on this bridge. */ |
829 | if (br->cfg->sflow) { | |
d49d354b | 830 | const struct ovsrec_sflow *sflow_cfg = br->cfg->sflow; |
76ce9432 | 831 | struct ovsrec_controller **controllers; |
72b06300 | 832 | struct ofproto_sflow_options oso; |
76ce9432 | 833 | size_t n_controllers; |
72b06300 | 834 | |
a4af0040 JP |
835 | memset(&oso, 0, sizeof oso); |
836 | ||
81e2083f BP |
837 | sset_init(&oso.targets); |
838 | sset_add_array(&oso.targets, | |
839 | sflow_cfg->targets, sflow_cfg->n_targets); | |
72b06300 BP |
840 | |
841 | oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE; | |
a4af0040 JP |
842 | if (sflow_cfg->sampling) { |
843 | oso.sampling_rate = *sflow_cfg->sampling; | |
72b06300 BP |
844 | } |
845 | ||
846 | oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL; | |
a4af0040 JP |
847 | if (sflow_cfg->polling) { |
848 | oso.polling_interval = *sflow_cfg->polling; | |
72b06300 BP |
849 | } |
850 | ||
851 | oso.header_len = SFL_DEFAULT_HEADER_SIZE; | |
a4af0040 JP |
852 | if (sflow_cfg->header) { |
853 | oso.header_len = *sflow_cfg->header; | |
72b06300 BP |
854 | } |
855 | ||
856 | oso.sub_id = sflow_bridge_number++; | |
a4af0040 JP |
857 | oso.agent_device = sflow_cfg->agent; |
858 | ||
76ce9432 | 859 | oso.control_ip = NULL; |
1a048029 | 860 | n_controllers = bridge_get_controllers(br, &controllers); |
76ce9432 BP |
861 | for (i = 0; i < n_controllers; i++) { |
862 | if (controllers[i]->local_ip) { | |
863 | oso.control_ip = controllers[i]->local_ip; | |
864 | break; | |
865 | } | |
866 | } | |
72b06300 BP |
867 | ofproto_set_sflow(br->ofproto, &oso); |
868 | ||
81e2083f | 869 | sset_destroy(&oso.targets); |
72b06300 BP |
870 | } else { |
871 | ofproto_set_sflow(br->ofproto, NULL); | |
872 | } | |
873 | ||
064af421 BP |
874 | /* Update the controller and related settings. It would be more |
875 | * straightforward to call this from bridge_reconfigure_one(), but we | |
876 | * can't do it there for two reasons. First, and most importantly, at | |
877 | * that point we don't know the dp_ifidx of any interfaces that have | |
878 | * been added to the bridge (because we haven't actually added them to | |
879 | * the datapath). Second, at that point we haven't set the datapath ID | |
880 | * yet; when a controller is configured, resetting the datapath ID will | |
881 | * immediately disconnect from the controller, so it's better to set | |
882 | * the datapath ID before the controller. */ | |
1a048029 | 883 | bridge_reconfigure_remotes(br, managers, n_managers); |
064af421 | 884 | } |
4e8e4213 | 885 | LIST_FOR_EACH (br, node, &all_bridges) { |
8052fb14 BP |
886 | struct port *port; |
887 | ||
888 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { | |
83db7968 | 889 | struct iface *iface; |
52df17e7 | 890 | |
e5ed989d | 891 | if (port->monitor) { |
83db7968 BP |
892 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
893 | netdev_monitor_add(port->monitor, iface->netdev); | |
e5ed989d EJ |
894 | } |
895 | } else { | |
896 | port->miimon_next_update = 0; | |
897 | } | |
898 | ||
c25c91fd | 899 | port_update_lacp(port); |
afabe15a | 900 | port_update_bonding(port); |
c1c9c9c4 | 901 | |
83db7968 BP |
902 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
903 | iface_update_qos(iface, port->cfg->qos); | |
c1c9c9c4 | 904 | } |
064af421 BP |
905 | } |
906 | } | |
4e8e4213 | 907 | LIST_FOR_EACH (br, node, &all_bridges) { |
4d678233 | 908 | iterate_and_prune_ifaces(br, set_iface_properties, NULL); |
064af421 | 909 | } |
093e47f4 | 910 | |
b31bcf60 EJ |
911 | LIST_FOR_EACH (br, node, &all_bridges) { |
912 | struct iface *iface; | |
913 | HMAP_FOR_EACH (iface, dp_ifidx_node, &br->ifaces) { | |
914 | iface_update_cfm(iface); | |
915 | } | |
916 | } | |
917 | ||
cd11000b | 918 | free(managers); |
a7ff9bd7 BP |
919 | |
920 | /* ovs-vswitchd has completed initialization, so allow the process that | |
921 | * forked us to exit successfully. */ | |
922 | daemonize_complete(); | |
093e47f4 BP |
923 | } |
924 | ||
925 | static const char * | |
af6278e1 BP |
926 | get_ovsrec_key_value(const struct ovsdb_idl_row *row, |
927 | const struct ovsdb_idl_column *column, | |
928 | const char *key) | |
093e47f4 | 929 | { |
af6278e1 BP |
930 | const struct ovsdb_datum *datum; |
931 | union ovsdb_atom atom; | |
932 | unsigned int idx; | |
093e47f4 | 933 | |
af6278e1 BP |
934 | datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING); |
935 | atom.string = (char *) key; | |
936 | idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING); | |
937 | return idx == UINT_MAX ? NULL : datum->values[idx].string; | |
064af421 BP |
938 | } |
939 | ||
c8143c88 BP |
940 | static const char * |
941 | bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key) | |
942 | { | |
af6278e1 BP |
943 | return get_ovsrec_key_value(&br_cfg->header_, |
944 | &ovsrec_bridge_col_other_config, key); | |
c8143c88 BP |
945 | } |
946 | ||
064af421 BP |
947 | static void |
948 | bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN], | |
07c318f4 | 949 | struct iface **hw_addr_iface) |
064af421 | 950 | { |
093e47f4 | 951 | const char *hwaddr; |
8052fb14 | 952 | struct port *port; |
064af421 BP |
953 | int error; |
954 | ||
07c318f4 | 955 | *hw_addr_iface = NULL; |
064af421 BP |
956 | |
957 | /* Did the user request a particular MAC? */ | |
093e47f4 BP |
958 | hwaddr = bridge_get_other_config(br->cfg, "hwaddr"); |
959 | if (hwaddr && eth_addr_from_string(hwaddr, ea)) { | |
064af421 BP |
960 | if (eth_addr_is_multicast(ea)) { |
961 | VLOG_ERR("bridge %s: cannot set MAC address to multicast " | |
962 | "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea)); | |
963 | } else if (eth_addr_is_zero(ea)) { | |
964 | VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name); | |
965 | } else { | |
966 | return; | |
967 | } | |
968 | } | |
969 | ||
141f4942 BP |
970 | /* Otherwise choose the minimum non-local MAC address among all of the |
971 | * interfaces. */ | |
0b420b10 | 972 | memset(ea, 0xff, ETH_ADDR_LEN); |
8052fb14 | 973 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
58b7527e | 974 | uint8_t iface_ea[ETH_ADDR_LEN]; |
83db7968 | 975 | struct iface *candidate; |
58b7527e BP |
976 | struct iface *iface; |
977 | ||
978 | /* Mirror output ports don't participate. */ | |
064af421 BP |
979 | if (port->is_mirror_output_port) { |
980 | continue; | |
981 | } | |
58b7527e BP |
982 | |
983 | /* Choose the MAC address to represent the port. */ | |
83db7968 | 984 | iface = NULL; |
76343538 | 985 | if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) { |
ba09980a BP |
986 | /* Find the interface with this Ethernet address (if any) so that |
987 | * we can provide the correct devname to the caller. */ | |
83db7968 | 988 | LIST_FOR_EACH (candidate, port_elem, &port->ifaces) { |
ba09980a | 989 | uint8_t candidate_ea[ETH_ADDR_LEN]; |
8fef8c71 | 990 | if (!netdev_get_etheraddr(candidate->netdev, candidate_ea) |
ba09980a BP |
991 | && eth_addr_equals(iface_ea, candidate_ea)) { |
992 | iface = candidate; | |
993 | } | |
994 | } | |
58b7527e BP |
995 | } else { |
996 | /* Choose the interface whose MAC address will represent the port. | |
997 | * The Linux kernel bonding code always chooses the MAC address of | |
998 | * the first slave added to a bond, and the Fedora networking | |
999 | * scripts always add slaves to a bond in alphabetical order, so | |
1000 | * for compatibility we choose the interface with the name that is | |
1001 | * first in alphabetical order. */ | |
83db7968 BP |
1002 | LIST_FOR_EACH (candidate, port_elem, &port->ifaces) { |
1003 | if (!iface || strcmp(candidate->name, iface->name) < 0) { | |
58b7527e BP |
1004 | iface = candidate; |
1005 | } | |
1006 | } | |
1007 | ||
1008 | /* The local port doesn't count (since we're trying to choose its | |
141f4942 BP |
1009 | * MAC address anyway). */ |
1010 | if (iface->dp_ifidx == ODPP_LOCAL) { | |
064af421 BP |
1011 | continue; |
1012 | } | |
58b7527e BP |
1013 | |
1014 | /* Grab MAC. */ | |
07c318f4 | 1015 | error = netdev_get_etheraddr(iface->netdev, iface_ea); |
58b7527e | 1016 | if (error) { |
064af421 BP |
1017 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
1018 | VLOG_ERR_RL(&rl, "failed to obtain Ethernet address of %s: %s", | |
1019 | iface->name, strerror(error)); | |
58b7527e | 1020 | continue; |
064af421 BP |
1021 | } |
1022 | } | |
58b7527e BP |
1023 | |
1024 | /* Compare against our current choice. */ | |
1025 | if (!eth_addr_is_multicast(iface_ea) && | |
141f4942 | 1026 | !eth_addr_is_local(iface_ea) && |
58b7527e BP |
1027 | !eth_addr_is_reserved(iface_ea) && |
1028 | !eth_addr_is_zero(iface_ea) && | |
130f6e5f | 1029 | eth_addr_compare_3way(iface_ea, ea) < 0) |
58b7527e | 1030 | { |
0babc06f | 1031 | memcpy(ea, iface_ea, ETH_ADDR_LEN); |
8fef8c71 | 1032 | *hw_addr_iface = iface; |
58b7527e | 1033 | } |
064af421 | 1034 | } |
141f4942 | 1035 | if (eth_addr_is_multicast(ea)) { |
064af421 | 1036 | memcpy(ea, br->default_ea, ETH_ADDR_LEN); |
07c318f4 | 1037 | *hw_addr_iface = NULL; |
064af421 BP |
1038 | VLOG_WARN("bridge %s: using default bridge Ethernet " |
1039 | "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea)); | |
1040 | } else { | |
1041 | VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT, | |
1042 | br->name, ETH_ADDR_ARGS(ea)); | |
1043 | } | |
1044 | } | |
1045 | ||
1046 | /* Choose and returns the datapath ID for bridge 'br' given that the bridge | |
1047 | * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of | |
07c318f4 BP |
1048 | * an interface on 'br', then that interface must be passed in as |
1049 | * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then | |
1050 | * 'hw_addr_iface' must be passed in as a null pointer. */ | |
064af421 BP |
1051 | static uint64_t |
1052 | bridge_pick_datapath_id(struct bridge *br, | |
1053 | const uint8_t bridge_ea[ETH_ADDR_LEN], | |
07c318f4 | 1054 | struct iface *hw_addr_iface) |
064af421 BP |
1055 | { |
1056 | /* | |
1057 | * The procedure for choosing a bridge MAC address will, in the most | |
1058 | * ordinary case, also choose a unique MAC that we can use as a datapath | |
1059 | * ID. In some special cases, though, multiple bridges will end up with | |
1060 | * the same MAC address. This is OK for the bridges, but it will confuse | |
1061 | * the OpenFlow controller, because each datapath needs a unique datapath | |
1062 | * ID. | |
1063 | * | |
1064 | * Datapath IDs must be unique. It is also very desirable that they be | |
1065 | * stable from one run to the next, so that policy set on a datapath | |
1066 | * "sticks". | |
1067 | */ | |
093e47f4 | 1068 | const char *datapath_id; |
064af421 BP |
1069 | uint64_t dpid; |
1070 | ||
093e47f4 BP |
1071 | datapath_id = bridge_get_other_config(br->cfg, "datapath-id"); |
1072 | if (datapath_id && dpid_from_string(datapath_id, &dpid)) { | |
064af421 BP |
1073 | return dpid; |
1074 | } | |
1075 | ||
07c318f4 | 1076 | if (hw_addr_iface) { |
064af421 | 1077 | int vlan; |
b2f17b15 | 1078 | if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) { |
064af421 BP |
1079 | /* |
1080 | * A bridge whose MAC address is taken from a VLAN network device | |
1081 | * (that is, a network device created with vconfig(8) or similar | |
1082 | * tool) will have the same MAC address as a bridge on the VLAN | |
1083 | * device's physical network device. | |
1084 | * | |
1085 | * Handle this case by hashing the physical network device MAC | |
1086 | * along with the VLAN identifier. | |
1087 | */ | |
1088 | uint8_t buf[ETH_ADDR_LEN + 2]; | |
1089 | memcpy(buf, bridge_ea, ETH_ADDR_LEN); | |
1090 | buf[ETH_ADDR_LEN] = vlan >> 8; | |
1091 | buf[ETH_ADDR_LEN + 1] = vlan; | |
1092 | return dpid_from_hash(buf, sizeof buf); | |
1093 | } else { | |
1094 | /* | |
1095 | * Assume that this bridge's MAC address is unique, since it | |
1096 | * doesn't fit any of the cases we handle specially. | |
1097 | */ | |
1098 | } | |
1099 | } else { | |
1100 | /* | |
1101 | * A purely internal bridge, that is, one that has no non-virtual | |
1102 | * network devices on it at all, is more difficult because it has no | |
1103 | * natural unique identifier at all. | |
1104 | * | |
1105 | * When the host is a XenServer, we handle this case by hashing the | |
1106 | * host's UUID with the name of the bridge. Names of bridges are | |
1107 | * persistent across XenServer reboots, although they can be reused if | |
1108 | * an internal network is destroyed and then a new one is later | |
1109 | * created, so this is fairly effective. | |
1110 | * | |
1111 | * When the host is not a XenServer, we punt by using a random MAC | |
1112 | * address on each run. | |
1113 | */ | |
1114 | const char *host_uuid = xenserver_get_host_uuid(); | |
1115 | if (host_uuid) { | |
1116 | char *combined = xasprintf("%s,%s", host_uuid, br->name); | |
1117 | dpid = dpid_from_hash(combined, strlen(combined)); | |
1118 | free(combined); | |
1119 | return dpid; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | return eth_addr_to_uint64(bridge_ea); | |
1124 | } | |
1125 | ||
1126 | static uint64_t | |
1127 | dpid_from_hash(const void *data, size_t n) | |
1128 | { | |
5eccf359 | 1129 | uint8_t hash[SHA1_DIGEST_SIZE]; |
064af421 BP |
1130 | |
1131 | BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN); | |
5eccf359 | 1132 | sha1_bytes(data, n, hash); |
064af421 BP |
1133 | eth_addr_mark_random(hash); |
1134 | return eth_addr_to_uint64(hash); | |
1135 | } | |
1136 | ||
ea83a2fc | 1137 | static void |
ea763e0e | 1138 | iface_refresh_status(struct iface *iface) |
ea83a2fc | 1139 | { |
ea763e0e EJ |
1140 | struct shash sh; |
1141 | ||
e210037e AE |
1142 | enum netdev_flags flags; |
1143 | uint32_t current; | |
1144 | int64_t bps; | |
1145 | int mtu; | |
1146 | int64_t mtu_64; | |
1147 | int error; | |
1148 | ||
ea763e0e EJ |
1149 | shash_init(&sh); |
1150 | ||
1151 | if (!netdev_get_status(iface->netdev, &sh)) { | |
1152 | size_t n; | |
1153 | char **keys, **values; | |
ea83a2fc | 1154 | |
ea763e0e EJ |
1155 | shash_to_ovs_idl_map(&sh, &keys, &values, &n); |
1156 | ovsrec_interface_set_status(iface->cfg, keys, values, n); | |
1157 | ||
1158 | free(keys); | |
1159 | free(values); | |
1160 | } else { | |
1161 | ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0); | |
1162 | } | |
1163 | ||
1164 | shash_destroy_free_data(&sh); | |
e210037e AE |
1165 | |
1166 | error = netdev_get_flags(iface->netdev, &flags); | |
1167 | if (!error) { | |
1168 | ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down"); | |
1169 | } | |
1170 | else { | |
1171 | ovsrec_interface_set_admin_state(iface->cfg, NULL); | |
1172 | } | |
1173 | ||
1174 | error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL); | |
1175 | if (!error) { | |
1176 | ovsrec_interface_set_duplex(iface->cfg, | |
1177 | netdev_features_is_full_duplex(current) | |
1178 | ? "full" : "half"); | |
1179 | /* warning: uint64_t -> int64_t conversion */ | |
1180 | bps = netdev_features_to_bps(current); | |
1181 | ovsrec_interface_set_link_speed(iface->cfg, &bps, 1); | |
1182 | } | |
1183 | else { | |
1184 | ovsrec_interface_set_duplex(iface->cfg, NULL); | |
1185 | ovsrec_interface_set_link_speed(iface->cfg, NULL, 0); | |
1186 | } | |
1187 | ||
1188 | ||
1189 | ovsrec_interface_set_link_state(iface->cfg, | |
0b8024eb | 1190 | iface_get_carrier(iface) ? "up" : "down"); |
e210037e AE |
1191 | |
1192 | error = netdev_get_mtu(iface->netdev, &mtu); | |
f915f1a8 | 1193 | if (!error && mtu != INT_MAX) { |
e210037e AE |
1194 | mtu_64 = mtu; |
1195 | ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1); | |
1196 | } | |
1197 | else { | |
1198 | ovsrec_interface_set_mtu(iface->cfg, NULL, 0); | |
1199 | } | |
ea83a2fc EJ |
1200 | } |
1201 | ||
6586adf5 EJ |
1202 | /* Writes 'iface''s CFM statistics to the database. Returns true if anything |
1203 | * changed, false otherwise. */ | |
1204 | static bool | |
b31bcf60 EJ |
1205 | iface_refresh_cfm_stats(struct iface *iface) |
1206 | { | |
b31bcf60 | 1207 | const struct ovsrec_monitor *mon; |
e7934396 | 1208 | const struct cfm *cfm; |
6586adf5 | 1209 | bool changed = false; |
e7934396 | 1210 | size_t i; |
b31bcf60 EJ |
1211 | |
1212 | mon = iface->cfg->monitor; | |
e7934396 | 1213 | cfm = ofproto_iface_get_cfm(iface->port->bridge->ofproto, iface->dp_ifidx); |
b31bcf60 EJ |
1214 | |
1215 | if (!cfm || !mon) { | |
6586adf5 | 1216 | return false; |
b31bcf60 EJ |
1217 | } |
1218 | ||
1219 | for (i = 0; i < mon->n_remote_mps; i++) { | |
1220 | const struct ovsrec_maintenance_point *mp; | |
1221 | const struct remote_mp *rmp; | |
1222 | ||
1223 | mp = mon->remote_mps[i]; | |
1224 | rmp = cfm_get_remote_mp(cfm, mp->mpid); | |
1225 | ||
6586adf5 EJ |
1226 | if (mp->n_fault != 1 || mp->fault[0] != rmp->fault) { |
1227 | ovsrec_maintenance_point_set_fault(mp, &rmp->fault, 1); | |
1228 | changed = true; | |
1229 | } | |
b31bcf60 EJ |
1230 | } |
1231 | ||
6586adf5 EJ |
1232 | if (mon->n_fault != 1 || mon->fault[0] != cfm->fault) { |
1233 | ovsrec_monitor_set_fault(mon, &cfm->fault, 1); | |
1234 | changed = true; | |
1235 | } | |
1236 | ||
1237 | return changed; | |
b31bcf60 EJ |
1238 | } |
1239 | ||
018f1525 BP |
1240 | static void |
1241 | iface_refresh_stats(struct iface *iface) | |
1242 | { | |
1243 | struct iface_stat { | |
1244 | char *name; | |
1245 | int offset; | |
1246 | }; | |
1247 | static const struct iface_stat iface_stats[] = { | |
1248 | { "rx_packets", offsetof(struct netdev_stats, rx_packets) }, | |
1249 | { "tx_packets", offsetof(struct netdev_stats, tx_packets) }, | |
1250 | { "rx_bytes", offsetof(struct netdev_stats, rx_bytes) }, | |
1251 | { "tx_bytes", offsetof(struct netdev_stats, tx_bytes) }, | |
1252 | { "rx_dropped", offsetof(struct netdev_stats, rx_dropped) }, | |
1253 | { "tx_dropped", offsetof(struct netdev_stats, tx_dropped) }, | |
1254 | { "rx_errors", offsetof(struct netdev_stats, rx_errors) }, | |
1255 | { "tx_errors", offsetof(struct netdev_stats, tx_errors) }, | |
1256 | { "rx_frame_err", offsetof(struct netdev_stats, rx_frame_errors) }, | |
1257 | { "rx_over_err", offsetof(struct netdev_stats, rx_over_errors) }, | |
1258 | { "rx_crc_err", offsetof(struct netdev_stats, rx_crc_errors) }, | |
1259 | { "collisions", offsetof(struct netdev_stats, collisions) }, | |
1260 | }; | |
1261 | enum { N_STATS = ARRAY_SIZE(iface_stats) }; | |
1262 | const struct iface_stat *s; | |
1263 | ||
1264 | char *keys[N_STATS]; | |
1265 | int64_t values[N_STATS]; | |
1266 | int n; | |
1267 | ||
1268 | struct netdev_stats stats; | |
1269 | ||
1270 | /* Intentionally ignore return value, since errors will set 'stats' to | |
1271 | * all-1s, and we will deal with that correctly below. */ | |
1272 | netdev_get_stats(iface->netdev, &stats); | |
1273 | ||
1274 | n = 0; | |
1275 | for (s = iface_stats; s < &iface_stats[N_STATS]; s++) { | |
1276 | uint64_t value = *(uint64_t *) (((char *) &stats) + s->offset); | |
1277 | if (value != UINT64_MAX) { | |
1278 | keys[n] = s->name; | |
1279 | values[n] = value; | |
1280 | n++; | |
1281 | } | |
1282 | } | |
1283 | ||
1284 | ovsrec_interface_set_statistics(iface->cfg, keys, values, n); | |
1285 | } | |
1286 | ||
ce887677 BP |
1287 | static void |
1288 | refresh_system_stats(const struct ovsrec_open_vswitch *cfg) | |
1289 | { | |
1290 | struct ovsdb_datum datum; | |
1291 | struct shash stats; | |
1292 | ||
1293 | shash_init(&stats); | |
1294 | get_system_stats(&stats); | |
1295 | ||
1296 | ovsdb_datum_from_shash(&datum, &stats); | |
1297 | ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics, | |
1298 | &datum); | |
1299 | } | |
1300 | ||
bffc0589 AE |
1301 | static inline const char * |
1302 | nx_role_to_str(enum nx_role role) | |
1303 | { | |
1304 | switch (role) { | |
1305 | case NX_ROLE_OTHER: | |
1306 | return "other"; | |
1307 | case NX_ROLE_MASTER: | |
1308 | return "master"; | |
1309 | case NX_ROLE_SLAVE: | |
1310 | return "slave"; | |
1311 | default: | |
1312 | return "*** INVALID ROLE ***"; | |
1313 | } | |
1314 | } | |
1315 | ||
1316 | static void | |
1317 | bridge_refresh_controller_status(const struct bridge *br) | |
1318 | { | |
1319 | struct shash info; | |
1320 | const struct ovsrec_controller *cfg; | |
1321 | ||
1322 | ofproto_get_ofproto_controller_info(br->ofproto, &info); | |
1323 | ||
1324 | OVSREC_CONTROLLER_FOR_EACH(cfg, idl) { | |
eb9b8307 AE |
1325 | struct ofproto_controller_info *cinfo = |
1326 | shash_find_data(&info, cfg->target); | |
1327 | ||
1328 | if (cinfo) { | |
1329 | ovsrec_controller_set_is_connected(cfg, cinfo->is_connected); | |
1330 | ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role)); | |
1331 | ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys, | |
1332 | (char **) cinfo->pairs.values, | |
1333 | cinfo->pairs.n); | |
1334 | } else { | |
1335 | ovsrec_controller_set_is_connected(cfg, false); | |
1336 | ovsrec_controller_set_role(cfg, NULL); | |
1337 | ovsrec_controller_set_status(cfg, NULL, NULL, 0); | |
1338 | } | |
bffc0589 AE |
1339 | } |
1340 | ||
1341 | ofproto_free_ofproto_controller_info(&info); | |
1342 | } | |
1343 | ||
c5187f17 | 1344 | void |
064af421 BP |
1345 | bridge_run(void) |
1346 | { | |
d54ff998 BP |
1347 | const struct ovsrec_open_vswitch *cfg; |
1348 | ||
c5187f17 | 1349 | bool datapath_destroyed; |
d54ff998 | 1350 | bool database_changed; |
c5187f17 | 1351 | struct bridge *br; |
064af421 | 1352 | |
c5187f17 BP |
1353 | /* Let each bridge do the work that it needs to do. */ |
1354 | datapath_destroyed = false; | |
4e8e4213 | 1355 | LIST_FOR_EACH (br, node, &all_bridges) { |
064af421 BP |
1356 | int error = bridge_run_one(br); |
1357 | if (error) { | |
1358 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
1359 | VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, " | |
1360 | "forcing reconfiguration", br->name); | |
c5187f17 BP |
1361 | datapath_destroyed = true; |
1362 | } | |
1363 | } | |
1364 | ||
1365 | /* (Re)configure if necessary. */ | |
d54ff998 BP |
1366 | database_changed = ovsdb_idl_run(idl); |
1367 | cfg = ovsrec_open_vswitch_first(idl); | |
d6da96ce BP |
1368 | #ifdef HAVE_OPENSSL |
1369 | /* Re-configure SSL. We do this on every trip through the main loop, | |
1370 | * instead of just when the database changes, because the contents of the | |
1371 | * key and certificate files can change without the database changing. | |
1372 | * | |
1373 | * We do this before bridge_reconfigure() because that function might | |
1374 | * initiate SSL connections and thus requires SSL to be configured. */ | |
1375 | if (cfg && cfg->ssl) { | |
1376 | const struct ovsrec_ssl *ssl = cfg->ssl; | |
1377 | ||
1378 | stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate); | |
1379 | stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert); | |
1380 | } | |
1381 | #endif | |
d54ff998 | 1382 | if (database_changed || datapath_destroyed) { |
c5187f17 BP |
1383 | if (cfg) { |
1384 | struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl); | |
1385 | ||
1386 | bridge_configure_once(cfg); | |
1387 | bridge_reconfigure(cfg); | |
1388 | ||
1389 | ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg); | |
1390 | ovsdb_idl_txn_commit(txn); | |
1391 | ovsdb_idl_txn_destroy(txn); /* XXX */ | |
1e0b752d BP |
1392 | } else { |
1393 | /* We still need to reconfigure to avoid dangling pointers to | |
1394 | * now-destroyed ovsrec structures inside bridge data. */ | |
1395 | static const struct ovsrec_open_vswitch null_cfg; | |
1396 | ||
1397 | bridge_reconfigure(&null_cfg); | |
064af421 BP |
1398 | } |
1399 | } | |
018f1525 | 1400 | |
cd0cd65f BP |
1401 | /* Refresh system and interface stats if necessary. */ |
1402 | if (time_msec() >= stats_timer) { | |
ce887677 BP |
1403 | if (cfg) { |
1404 | struct ovsdb_idl_txn *txn; | |
018f1525 | 1405 | |
ce887677 | 1406 | txn = ovsdb_idl_txn_create(idl); |
4e8e4213 | 1407 | LIST_FOR_EACH (br, node, &all_bridges) { |
8052fb14 | 1408 | struct port *port; |
018f1525 | 1409 | |
8052fb14 | 1410 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
83db7968 | 1411 | struct iface *iface; |
018f1525 | 1412 | |
83db7968 | 1413 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
ce887677 | 1414 | iface_refresh_stats(iface); |
ea763e0e | 1415 | iface_refresh_status(iface); |
ce887677 | 1416 | } |
018f1525 | 1417 | } |
bffc0589 | 1418 | bridge_refresh_controller_status(br); |
018f1525 | 1419 | } |
ce887677 BP |
1420 | refresh_system_stats(cfg); |
1421 | ovsdb_idl_txn_commit(txn); | |
1422 | ovsdb_idl_txn_destroy(txn); /* XXX */ | |
018f1525 | 1423 | } |
018f1525 | 1424 | |
cd0cd65f | 1425 | stats_timer = time_msec() + STATS_INTERVAL; |
018f1525 | 1426 | } |
6586adf5 EJ |
1427 | |
1428 | if (time_msec() >= cfm_limiter) { | |
1429 | struct ovsdb_idl_txn *txn; | |
1430 | bool changed = false; | |
1431 | ||
1432 | txn = ovsdb_idl_txn_create(idl); | |
1433 | LIST_FOR_EACH (br, node, &all_bridges) { | |
1434 | struct port *port; | |
1435 | ||
1436 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { | |
1437 | struct iface *iface; | |
1438 | ||
1439 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { | |
1440 | changed = iface_refresh_cfm_stats(iface) || changed; | |
1441 | } | |
1442 | } | |
1443 | } | |
1444 | ||
1445 | if (changed) { | |
1446 | cfm_limiter = time_msec() + CFM_LIMIT_INTERVAL; | |
1447 | } | |
1448 | ||
1449 | ovsdb_idl_txn_commit(txn); | |
1450 | ovsdb_idl_txn_destroy(txn); | |
1451 | } | |
064af421 BP |
1452 | } |
1453 | ||
1454 | void | |
1455 | bridge_wait(void) | |
1456 | { | |
1457 | struct bridge *br; | |
1458 | ||
4e8e4213 | 1459 | LIST_FOR_EACH (br, node, &all_bridges) { |
8052fb14 | 1460 | struct port *port; |
21dcb94f | 1461 | |
064af421 | 1462 | ofproto_wait(br->ofproto); |
93dfc067 | 1463 | mac_learning_wait(br->ml); |
8052fb14 BP |
1464 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
1465 | port_wait(port); | |
b31bcf60 | 1466 | } |
064af421 | 1467 | } |
c5187f17 | 1468 | ovsdb_idl_wait(idl); |
cd0cd65f | 1469 | poll_timer_wait_until(stats_timer); |
6586adf5 EJ |
1470 | |
1471 | if (cfm_limiter > time_msec()) { | |
1472 | poll_timer_wait_until(cfm_limiter); | |
1473 | } | |
064af421 BP |
1474 | } |
1475 | ||
1476 | /* Forces 'br' to revalidate all of its flows. This is appropriate when 'br''s | |
1477 | * configuration changes. */ | |
1478 | static void | |
1479 | bridge_flush(struct bridge *br) | |
1480 | { | |
1481 | COVERAGE_INC(bridge_flush); | |
1482 | br->flush = true; | |
064af421 BP |
1483 | } |
1484 | \f | |
8c4c1387 BP |
1485 | /* Bridge unixctl user interface functions. */ |
1486 | static void | |
8ca79daa | 1487 | bridge_unixctl_fdb_show(struct unixctl_conn *conn, |
c69ee87c | 1488 | const char *args, void *aux OVS_UNUSED) |
8c4c1387 BP |
1489 | { |
1490 | struct ds ds = DS_EMPTY_INITIALIZER; | |
1491 | const struct bridge *br; | |
93dfc067 | 1492 | const struct mac_entry *e; |
8c4c1387 BP |
1493 | |
1494 | br = bridge_lookup(args); | |
1495 | if (!br) { | |
1496 | unixctl_command_reply(conn, 501, "no such bridge"); | |
1497 | return; | |
1498 | } | |
1499 | ||
1500 | ds_put_cstr(&ds, " port VLAN MAC Age\n"); | |
4e8e4213 | 1501 | LIST_FOR_EACH (e, lru_node, &br->ml->lrus) { |
1648ddd7 | 1502 | struct port *port = e->port.p; |
93dfc067 | 1503 | ds_put_format(&ds, "%5d %4d "ETH_ADDR_FMT" %3d\n", |
1648ddd7 | 1504 | port_get_an_iface(port)->dp_ifidx, |
93dfc067 | 1505 | e->vlan, ETH_ADDR_ARGS(e->mac), mac_entry_age(e)); |
8c4c1387 BP |
1506 | } |
1507 | unixctl_command_reply(conn, 200, ds_cstr(&ds)); | |
1508 | ds_destroy(&ds); | |
1509 | } | |
1510 | \f | |
20c8e971 EJ |
1511 | /* CFM unixctl user interface functions. */ |
1512 | static void | |
1513 | cfm_unixctl_show(struct unixctl_conn *conn, | |
1514 | const char *args, void *aux OVS_UNUSED) | |
1515 | { | |
1516 | struct ds ds = DS_EMPTY_INITIALIZER; | |
1517 | struct iface *iface; | |
1518 | const struct cfm *cfm; | |
1519 | ||
1520 | iface = iface_find(args); | |
1521 | if (!iface) { | |
1522 | unixctl_command_reply(conn, 501, "no such interface"); | |
1523 | return; | |
1524 | } | |
1525 | ||
1526 | cfm = ofproto_iface_get_cfm(iface->port->bridge->ofproto, iface->dp_ifidx); | |
1527 | ||
1528 | if (!cfm) { | |
1529 | unixctl_command_reply(conn, 501, "CFM not enabled"); | |
1530 | return; | |
1531 | } | |
1532 | ||
1533 | cfm_dump_ds(cfm, &ds); | |
1534 | unixctl_command_reply(conn, 200, ds_cstr(&ds)); | |
1535 | ds_destroy(&ds); | |
1536 | } | |
1537 | \f | |
e8fe3026 EJ |
1538 | /* QoS unixctl user interface functions. */ |
1539 | ||
1540 | struct qos_unixctl_show_cbdata { | |
1541 | struct ds *ds; | |
1542 | struct iface *iface; | |
1543 | }; | |
1544 | ||
1545 | static void | |
1546 | qos_unixctl_show_cb(unsigned int queue_id, | |
1547 | const struct shash *details, | |
1548 | void *aux) | |
1549 | { | |
1550 | struct qos_unixctl_show_cbdata *data = aux; | |
1551 | struct ds *ds = data->ds; | |
1552 | struct iface *iface = data->iface; | |
1553 | struct netdev_queue_stats stats; | |
1554 | struct shash_node *node; | |
1555 | int error; | |
1556 | ||
1557 | ds_put_cstr(ds, "\n"); | |
1558 | if (queue_id) { | |
1559 | ds_put_format(ds, "Queue %u:\n", queue_id); | |
1560 | } else { | |
1561 | ds_put_cstr(ds, "Default:\n"); | |
1562 | } | |
1563 | ||
1564 | SHASH_FOR_EACH (node, details) { | |
1565 | ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data); | |
1566 | } | |
1567 | ||
1568 | error = netdev_get_queue_stats(iface->netdev, queue_id, &stats); | |
1569 | if (!error) { | |
1570 | if (stats.tx_packets != UINT64_MAX) { | |
1571 | ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets); | |
1572 | } | |
1573 | ||
1574 | if (stats.tx_bytes != UINT64_MAX) { | |
1575 | ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes); | |
1576 | } | |
1577 | ||
1578 | if (stats.tx_errors != UINT64_MAX) { | |
1579 | ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors); | |
1580 | } | |
1581 | } else { | |
1582 | ds_put_format(ds, "\tFailed to get statistics for queue %u: %s", | |
1583 | queue_id, strerror(error)); | |
1584 | } | |
1585 | } | |
1586 | ||
1587 | static void | |
1588 | qos_unixctl_show(struct unixctl_conn *conn, | |
1589 | const char *args, void *aux OVS_UNUSED) | |
1590 | { | |
1591 | struct ds ds = DS_EMPTY_INITIALIZER; | |
1592 | struct shash sh = SHASH_INITIALIZER(&sh); | |
1593 | struct iface *iface; | |
1594 | const char *type; | |
1595 | struct shash_node *node; | |
1596 | struct qos_unixctl_show_cbdata data; | |
1597 | int error; | |
1598 | ||
1599 | iface = iface_find(args); | |
1600 | if (!iface) { | |
1601 | unixctl_command_reply(conn, 501, "no such interface"); | |
1602 | return; | |
1603 | } | |
1604 | ||
1605 | netdev_get_qos(iface->netdev, &type, &sh); | |
1606 | ||
1607 | if (*type != '\0') { | |
1608 | ds_put_format(&ds, "QoS: %s %s\n", iface->name, type); | |
1609 | ||
1610 | SHASH_FOR_EACH (node, &sh) { | |
1611 | ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data); | |
1612 | } | |
1613 | ||
1614 | data.ds = &ds; | |
1615 | data.iface = iface; | |
1616 | error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data); | |
1617 | ||
1618 | if (error) { | |
1619 | ds_put_format(&ds, "failed to dump queues: %s", strerror(error)); | |
1620 | } | |
1621 | unixctl_command_reply(conn, 200, ds_cstr(&ds)); | |
1622 | } else { | |
1623 | ds_put_format(&ds, "QoS not configured on %s\n", iface->name); | |
1624 | unixctl_command_reply(conn, 501, ds_cstr(&ds)); | |
1625 | } | |
1626 | ||
1627 | shash_destroy_free_data(&sh); | |
1628 | ds_destroy(&ds); | |
1629 | } | |
1630 | \f | |
064af421 | 1631 | /* Bridge reconfiguration functions. */ |
064af421 | 1632 | static struct bridge * |
1a6f1e2a | 1633 | bridge_create(const struct ovsrec_bridge *br_cfg) |
064af421 BP |
1634 | { |
1635 | struct bridge *br; | |
1636 | int error; | |
1637 | ||
1a6f1e2a | 1638 | assert(!bridge_lookup(br_cfg->name)); |
ec6fde61 | 1639 | br = xzalloc(sizeof *br); |
064af421 | 1640 | |
1a6f1e2a JG |
1641 | error = dpif_create_and_open(br_cfg->name, br_cfg->datapath_type, |
1642 | &br->dpif); | |
efacbce6 | 1643 | if (error) { |
064af421 BP |
1644 | free(br); |
1645 | return NULL; | |
1646 | } | |
1647 | ||
1a6f1e2a JG |
1648 | error = ofproto_create(br_cfg->name, br_cfg->datapath_type, &bridge_ofhooks, |
1649 | br, &br->ofproto); | |
064af421 | 1650 | if (error) { |
1a6f1e2a JG |
1651 | VLOG_ERR("failed to create switch %s: %s", br_cfg->name, |
1652 | strerror(error)); | |
c228a364 BP |
1653 | dpif_delete(br->dpif); |
1654 | dpif_close(br->dpif); | |
064af421 BP |
1655 | free(br); |
1656 | return NULL; | |
1657 | } | |
1658 | ||
1a6f1e2a JG |
1659 | br->name = xstrdup(br_cfg->name); |
1660 | br->cfg = br_cfg; | |
064af421 | 1661 | br->ml = mac_learning_create(); |
70150daf | 1662 | eth_addr_nicira_random(br->default_ea); |
064af421 | 1663 | |
8052fb14 | 1664 | hmap_init(&br->ports); |
d9a8717a | 1665 | hmap_init(&br->ifaces); |
4a1ee6ae BP |
1666 | shash_init(&br->iface_by_name); |
1667 | ||
064af421 | 1668 | br->flush = false; |
064af421 BP |
1669 | |
1670 | list_push_back(&all_bridges, &br->node); | |
1671 | ||
c228a364 | 1672 | VLOG_INFO("created bridge %s on %s", br->name, dpif_name(br->dpif)); |
064af421 BP |
1673 | |
1674 | return br; | |
1675 | } | |
1676 | ||
1677 | static void | |
1678 | bridge_destroy(struct bridge *br) | |
1679 | { | |
1680 | if (br) { | |
8052fb14 | 1681 | struct port *port, *next; |
064af421 BP |
1682 | int error; |
1683 | ||
8052fb14 BP |
1684 | HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) { |
1685 | port_destroy(port); | |
064af421 BP |
1686 | } |
1687 | list_remove(&br->node); | |
6d6ab93e | 1688 | ofproto_destroy(br->ofproto); |
c228a364 | 1689 | error = dpif_delete(br->dpif); |
064af421 | 1690 | if (error && error != ENOENT) { |
b29ba128 | 1691 | VLOG_ERR("failed to delete %s: %s", |
c228a364 | 1692 | dpif_name(br->dpif), strerror(error)); |
064af421 | 1693 | } |
c228a364 | 1694 | dpif_close(br->dpif); |
064af421 | 1695 | mac_learning_destroy(br->ml); |
d9a8717a | 1696 | hmap_destroy(&br->ifaces); |
8052fb14 | 1697 | hmap_destroy(&br->ports); |
4a1ee6ae | 1698 | shash_destroy(&br->iface_by_name); |
064af421 BP |
1699 | free(br->name); |
1700 | free(br); | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | static struct bridge * | |
1705 | bridge_lookup(const char *name) | |
1706 | { | |
1707 | struct bridge *br; | |
1708 | ||
4e8e4213 | 1709 | LIST_FOR_EACH (br, node, &all_bridges) { |
064af421 BP |
1710 | if (!strcmp(br->name, name)) { |
1711 | return br; | |
1712 | } | |
1713 | } | |
1714 | return NULL; | |
1715 | } | |
1716 | ||
4f2cad2c JP |
1717 | /* Handle requests for a listing of all flows known by the OpenFlow |
1718 | * stack, including those normally hidden. */ | |
1719 | static void | |
8ca79daa | 1720 | bridge_unixctl_dump_flows(struct unixctl_conn *conn, |
c69ee87c | 1721 | const char *args, void *aux OVS_UNUSED) |
4f2cad2c JP |
1722 | { |
1723 | struct bridge *br; | |
1724 | struct ds results; | |
d295e8e9 | 1725 | |
4f2cad2c JP |
1726 | br = bridge_lookup(args); |
1727 | if (!br) { | |
1728 | unixctl_command_reply(conn, 501, "Unknown bridge"); | |
1729 | return; | |
1730 | } | |
1731 | ||
1732 | ds_init(&results); | |
1733 | ofproto_get_all_flows(br->ofproto, &results); | |
1734 | ||
1735 | unixctl_command_reply(conn, 200, ds_cstr(&results)); | |
1736 | ds_destroy(&results); | |
1737 | } | |
1738 | ||
fa05809b BP |
1739 | /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller |
1740 | * connections and reconnect. If BRIDGE is not specified, then all bridges | |
1741 | * drop their controller connections and reconnect. */ | |
1742 | static void | |
1743 | bridge_unixctl_reconnect(struct unixctl_conn *conn, | |
1744 | const char *args, void *aux OVS_UNUSED) | |
1745 | { | |
1746 | struct bridge *br; | |
1747 | if (args[0] != '\0') { | |
1748 | br = bridge_lookup(args); | |
1749 | if (!br) { | |
1750 | unixctl_command_reply(conn, 501, "Unknown bridge"); | |
1751 | return; | |
1752 | } | |
1753 | ofproto_reconnect_controllers(br->ofproto); | |
1754 | } else { | |
4e8e4213 | 1755 | LIST_FOR_EACH (br, node, &all_bridges) { |
fa05809b BP |
1756 | ofproto_reconnect_controllers(br->ofproto); |
1757 | } | |
1758 | } | |
1759 | unixctl_command_reply(conn, 200, NULL); | |
1760 | } | |
1761 | ||
064af421 BP |
1762 | static int |
1763 | bridge_run_one(struct bridge *br) | |
1764 | { | |
8052fb14 | 1765 | struct port *port; |
064af421 BP |
1766 | int error; |
1767 | ||
1768 | error = ofproto_run1(br->ofproto); | |
1769 | if (error) { | |
1770 | return error; | |
1771 | } | |
1772 | ||
93dfc067 | 1773 | mac_learning_run(br->ml, ofproto_get_revalidate_set(br->ofproto)); |
21dcb94f | 1774 | |
8052fb14 BP |
1775 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
1776 | port_run(port); | |
21dcb94f | 1777 | } |
064af421 BP |
1778 | |
1779 | error = ofproto_run2(br->ofproto, br->flush); | |
1780 | br->flush = false; | |
1781 | ||
1782 | return error; | |
1783 | } | |
1784 | ||
76ce9432 | 1785 | static size_t |
1a048029 | 1786 | bridge_get_controllers(const struct bridge *br, |
76ce9432 | 1787 | struct ovsrec_controller ***controllersp) |
064af421 | 1788 | { |
76ce9432 BP |
1789 | struct ovsrec_controller **controllers; |
1790 | size_t n_controllers; | |
064af421 | 1791 | |
1a048029 JP |
1792 | controllers = br->cfg->controller; |
1793 | n_controllers = br->cfg->n_controller; | |
76343538 | 1794 | |
76ce9432 BP |
1795 | if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) { |
1796 | controllers = NULL; | |
1797 | n_controllers = 0; | |
064af421 | 1798 | } |
76343538 | 1799 | |
76ce9432 BP |
1800 | if (controllersp) { |
1801 | *controllersp = controllers; | |
1802 | } | |
1803 | return n_controllers; | |
064af421 BP |
1804 | } |
1805 | ||
1806 | static void | |
1a048029 | 1807 | bridge_reconfigure_one(struct bridge *br) |
064af421 | 1808 | { |
8052fb14 | 1809 | enum ofproto_fail_mode fail_mode; |
8052fb14 | 1810 | struct port *port, *next; |
76343538 | 1811 | struct shash_node *node; |
8052fb14 | 1812 | struct shash new_ports; |
6ae39834 | 1813 | size_t i; |
064af421 | 1814 | |
064af421 | 1815 | /* Collect new ports. */ |
76343538 BP |
1816 | shash_init(&new_ports); |
1817 | for (i = 0; i < br->cfg->n_ports; i++) { | |
1818 | const char *name = br->cfg->ports[i]->name; | |
1819 | if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) { | |
1820 | VLOG_WARN("bridge %s: %s specified twice as bridge port", | |
1821 | br->name, name); | |
1822 | } | |
1823 | } | |
e073f944 BP |
1824 | |
1825 | /* If we have a controller, then we need a local port. Complain if the | |
1826 | * user didn't specify one. | |
1827 | * | |
1828 | * XXX perhaps we should synthesize a port ourselves in this case. */ | |
1a048029 | 1829 | if (bridge_get_controllers(br, NULL)) { |
72865317 BP |
1830 | char local_name[IF_NAMESIZE]; |
1831 | int error; | |
1832 | ||
1833 | error = dpif_port_get_name(br->dpif, ODPP_LOCAL, | |
1834 | local_name, sizeof local_name); | |
e073f944 BP |
1835 | if (!error && !shash_find(&new_ports, local_name)) { |
1836 | VLOG_WARN("bridge %s: controller specified but no local port " | |
1837 | "(port named %s) defined", | |
1838 | br->name, local_name); | |
72865317 | 1839 | } |
064af421 | 1840 | } |
064af421 | 1841 | |
4a1ee6ae BP |
1842 | /* Get rid of deleted ports. |
1843 | * Get rid of deleted interfaces on ports that still exist. */ | |
8052fb14 | 1844 | HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) { |
4a1ee6ae BP |
1845 | const struct ovsrec_port *port_cfg; |
1846 | ||
8052fb14 | 1847 | port_cfg = shash_find_data(&new_ports, port->name); |
4a1ee6ae BP |
1848 | if (!port_cfg) { |
1849 | port_destroy(port); | |
1850 | } else { | |
1851 | port_del_ifaces(port, port_cfg); | |
064af421 BP |
1852 | } |
1853 | } | |
4a1ee6ae BP |
1854 | |
1855 | /* Create new ports. | |
1856 | * Add new interfaces to existing ports. | |
1857 | * Reconfigure existing ports. */ | |
76343538 | 1858 | SHASH_FOR_EACH (node, &new_ports) { |
8052fb14 | 1859 | struct port *port = port_lookup(br, node->name); |
76343538 BP |
1860 | if (!port) { |
1861 | port = port_create(br, node->name); | |
064af421 | 1862 | } |
ceb4559f | 1863 | |
76343538 | 1864 | port_reconfigure(port, node->data); |
ceb4559f JG |
1865 | if (!port->n_ifaces) { |
1866 | VLOG_WARN("bridge %s: port %s has no interfaces, dropping", | |
1867 | br->name, port->name); | |
1868 | port_destroy(port); | |
1869 | } | |
064af421 | 1870 | } |
76343538 | 1871 | shash_destroy(&new_ports); |
064af421 | 1872 | |
31681a5d JP |
1873 | /* Set the fail-mode */ |
1874 | fail_mode = !br->cfg->fail_mode | |
1875 | || !strcmp(br->cfg->fail_mode, "standalone") | |
1876 | ? OFPROTO_FAIL_STANDALONE | |
1877 | : OFPROTO_FAIL_SECURE; | |
7d674866 BP |
1878 | if (ofproto_get_fail_mode(br->ofproto) != fail_mode |
1879 | && !ofproto_has_primary_controller(br->ofproto)) { | |
abdfe474 JP |
1880 | ofproto_flush_flows(br->ofproto); |
1881 | } | |
31681a5d JP |
1882 | ofproto_set_fail_mode(br->ofproto, fail_mode); |
1883 | ||
064af421 BP |
1884 | /* Delete all flows if we're switching from connected to standalone or vice |
1885 | * versa. (XXX Should we delete all flows if we are switching from one | |
1886 | * controller to another?) */ | |
1887 | ||
5a243150 | 1888 | /* Configure OpenFlow controller connection snooping. */ |
81e2083f BP |
1889 | if (!ofproto_has_snoops(br->ofproto)) { |
1890 | struct sset snoops; | |
1891 | ||
1892 | sset_init(&snoops); | |
1893 | sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop", | |
1894 | ovs_rundir(), br->name)); | |
76343538 | 1895 | ofproto_set_snoops(br->ofproto, &snoops); |
81e2083f | 1896 | sset_destroy(&snoops); |
76343538 | 1897 | } |
76343538 | 1898 | |
064af421 BP |
1899 | mirror_reconfigure(br); |
1900 | } | |
1901 | ||
7d674866 BP |
1902 | /* Initializes 'oc' appropriately as a management service controller for |
1903 | * 'br'. | |
1904 | * | |
1905 | * The caller must free oc->target when it is no longer needed. */ | |
1906 | static void | |
1907 | bridge_ofproto_controller_for_mgmt(const struct bridge *br, | |
1908 | struct ofproto_controller *oc) | |
1909 | { | |
b43c6fe2 | 1910 | oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name); |
7d674866 BP |
1911 | oc->max_backoff = 0; |
1912 | oc->probe_interval = 60; | |
1913 | oc->band = OFPROTO_OUT_OF_BAND; | |
7d674866 BP |
1914 | oc->rate_limit = 0; |
1915 | oc->burst_limit = 0; | |
1916 | } | |
1917 | ||
1918 | /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */ | |
1919 | static void | |
1920 | bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c, | |
1921 | struct ofproto_controller *oc) | |
1922 | { | |
1923 | oc->target = c->target; | |
1924 | oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8; | |
1925 | oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5; | |
1926 | oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band") | |
1927 | ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND); | |
7d674866 BP |
1928 | oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0; |
1929 | oc->burst_limit = (c->controller_burst_limit | |
1930 | ? *c->controller_burst_limit : 0); | |
1931 | } | |
1932 | ||
1933 | /* Configures the IP stack for 'br''s local interface properly according to the | |
1934 | * configuration in 'c'. */ | |
1935 | static void | |
1936 | bridge_configure_local_iface_netdev(struct bridge *br, | |
1937 | struct ovsrec_controller *c) | |
1938 | { | |
1939 | struct netdev *netdev; | |
1940 | struct in_addr mask, gateway; | |
1941 | ||
1942 | struct iface *local_iface; | |
1943 | struct in_addr ip; | |
1944 | ||
7d674866 | 1945 | /* If there's no local interface or no IP address, give up. */ |
27b3a6e0 | 1946 | local_iface = iface_from_dp_ifidx(br, ODPP_LOCAL); |
7d674866 BP |
1947 | if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) { |
1948 | return; | |
1949 | } | |
1950 | ||
1951 | /* Bring up the local interface. */ | |
1952 | netdev = local_iface->netdev; | |
1953 | netdev_turn_flags_on(netdev, NETDEV_UP, true); | |
1954 | ||
1955 | /* Configure the IP address and netmask. */ | |
1956 | if (!c->local_netmask | |
1957 | || !inet_aton(c->local_netmask, &mask) | |
1958 | || !mask.s_addr) { | |
1959 | mask.s_addr = guess_netmask(ip.s_addr); | |
1960 | } | |
1961 | if (!netdev_set_in4(netdev, ip, mask)) { | |
1962 | VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT, | |
1963 | br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr)); | |
1964 | } | |
1965 | ||
1966 | /* Configure the default gateway. */ | |
1967 | if (c->local_gateway | |
1968 | && inet_aton(c->local_gateway, &gateway) | |
1969 | && gateway.s_addr) { | |
1970 | if (!netdev_add_router(netdev, gateway)) { | |
1971 | VLOG_INFO("bridge %s: configured gateway "IP_FMT, | |
1972 | br->name, IP_ARGS(&gateway.s_addr)); | |
1973 | } | |
1974 | } | |
1975 | } | |
1976 | ||
064af421 | 1977 | static void |
1a048029 | 1978 | bridge_reconfigure_remotes(struct bridge *br, |
11bbff1b BP |
1979 | const struct sockaddr_in *managers, |
1980 | size_t n_managers) | |
064af421 | 1981 | { |
b1da6250 BP |
1982 | const char *disable_ib_str, *queue_id_str; |
1983 | bool disable_in_band = false; | |
1984 | int queue_id; | |
1985 | ||
76ce9432 BP |
1986 | struct ovsrec_controller **controllers; |
1987 | size_t n_controllers; | |
7d674866 BP |
1988 | bool had_primary; |
1989 | ||
1990 | struct ofproto_controller *ocs; | |
1991 | size_t n_ocs; | |
1992 | size_t i; | |
064af421 | 1993 | |
8731b2b6 JP |
1994 | /* Check if we should disable in-band control on this bridge. */ |
1995 | disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band"); | |
1996 | if (disable_ib_str && !strcmp(disable_ib_str, "true")) { | |
1997 | disable_in_band = true; | |
1998 | } | |
1999 | ||
b1da6250 BP |
2000 | /* Set OpenFlow queue ID for in-band control. */ |
2001 | queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue"); | |
2002 | queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1; | |
2003 | ofproto_set_in_band_queue(br->ofproto, queue_id); | |
2004 | ||
8731b2b6 JP |
2005 | if (disable_in_band) { |
2006 | ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0); | |
2007 | } else { | |
2008 | ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers); | |
2009 | } | |
7d674866 | 2010 | had_primary = ofproto_has_primary_controller(br->ofproto); |
cd11000b | 2011 | |
1a048029 | 2012 | n_controllers = bridge_get_controllers(br, &controllers); |
064af421 | 2013 | |
7d674866 BP |
2014 | ocs = xmalloc((n_controllers + 1) * sizeof *ocs); |
2015 | n_ocs = 0; | |
064af421 | 2016 | |
7d674866 BP |
2017 | bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]); |
2018 | for (i = 0; i < n_controllers; i++) { | |
2019 | struct ovsrec_controller *c = controllers[i]; | |
76ce9432 | 2020 | |
7d674866 BP |
2021 | if (!strncmp(c->target, "punix:", 6) |
2022 | || !strncmp(c->target, "unix:", 5)) { | |
2023 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
76ce9432 | 2024 | |
7d674866 BP |
2025 | /* Prevent remote ovsdb-server users from accessing arbitrary Unix |
2026 | * domain sockets and overwriting arbitrary local files. */ | |
2027 | VLOG_ERR_RL(&rl, "%s: not adding Unix domain socket controller " | |
2028 | "\"%s\" due to possibility for remote exploit", | |
2029 | dpif_name(br->dpif), c->target); | |
2030 | continue; | |
2031 | } | |
76ce9432 | 2032 | |
7d674866 | 2033 | bridge_configure_local_iface_netdev(br, c); |
8731b2b6 JP |
2034 | bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]); |
2035 | if (disable_in_band) { | |
2036 | ocs[n_ocs].band = OFPROTO_OUT_OF_BAND; | |
2037 | } | |
2038 | n_ocs++; | |
7d674866 | 2039 | } |
76ce9432 | 2040 | |
7d674866 BP |
2041 | ofproto_set_controllers(br->ofproto, ocs, n_ocs); |
2042 | free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */ | |
2043 | free(ocs); | |
064af421 | 2044 | |
7d674866 BP |
2045 | if (had_primary != ofproto_has_primary_controller(br->ofproto)) { |
2046 | ofproto_flush_flows(br->ofproto); | |
2047 | } | |
76ce9432 | 2048 | |
7d674866 BP |
2049 | /* If there are no controllers and the bridge is in standalone |
2050 | * mode, set up a flow that matches every packet and directs | |
2051 | * them to OFPP_NORMAL (which goes to us). Otherwise, the | |
2052 | * switch is in secure mode and we won't pass any traffic until | |
2053 | * a controller has been defined and it tells us to do so. */ | |
2054 | if (!n_controllers | |
2055 | && ofproto_get_fail_mode(br->ofproto) == OFPROTO_FAIL_STANDALONE) { | |
2056 | union ofp_action action; | |
cf3fad8a | 2057 | struct cls_rule rule; |
76ce9432 | 2058 | |
7d674866 BP |
2059 | memset(&action, 0, sizeof action); |
2060 | action.type = htons(OFPAT_OUTPUT); | |
2061 | action.output.len = htons(sizeof action); | |
2062 | action.output.port = htons(OFPP_NORMAL); | |
cf3fad8a | 2063 | cls_rule_init_catchall(&rule, 0); |
fa8b054f | 2064 | ofproto_add_flow(br->ofproto, &rule, &action, 1); |
064af421 | 2065 | } |
064af421 BP |
2066 | } |
2067 | ||
2068 | static void | |
76343538 | 2069 | bridge_get_all_ifaces(const struct bridge *br, struct shash *ifaces) |
064af421 | 2070 | { |
8052fb14 | 2071 | struct port *port; |
064af421 | 2072 | |
76343538 | 2073 | shash_init(ifaces); |
8052fb14 | 2074 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
83db7968 BP |
2075 | struct iface *iface; |
2076 | ||
2077 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { | |
76343538 | 2078 | shash_add_once(ifaces, iface->name, iface); |
064af421 | 2079 | } |
76343538 BP |
2080 | if (port->n_ifaces > 1 && port->cfg->bond_fake_iface) { |
2081 | shash_add_once(ifaces, port->name, NULL); | |
35c979bf | 2082 | } |
064af421 | 2083 | } |
064af421 BP |
2084 | } |
2085 | ||
2086 | /* For robustness, in case the administrator moves around datapath ports behind | |
2087 | * our back, we re-check all the datapath port numbers here. | |
2088 | * | |
2089 | * This function will set the 'dp_ifidx' members of interfaces that have | |
2090 | * disappeared to -1, so only call this function from a context where those | |
2091 | * 'struct iface's will be removed from the bridge. Otherwise, the -1 | |
2092 | * 'dp_ifidx'es will cause trouble later when we try to send them to the | |
2093 | * datapath, which doesn't support UINT16_MAX+1 ports. */ | |
2094 | static void | |
2095 | bridge_fetch_dp_ifaces(struct bridge *br) | |
2096 | { | |
b0ec0f27 | 2097 | struct dpif_port_dump dump; |
4c738a8d | 2098 | struct dpif_port dpif_port; |
8052fb14 | 2099 | struct port *port; |
064af421 BP |
2100 | |
2101 | /* Reset all interface numbers. */ | |
8052fb14 | 2102 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
83db7968 BP |
2103 | struct iface *iface; |
2104 | ||
2105 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { | |
064af421 BP |
2106 | iface->dp_ifidx = -1; |
2107 | } | |
2108 | } | |
d9a8717a | 2109 | hmap_clear(&br->ifaces); |
064af421 | 2110 | |
4c738a8d BP |
2111 | DPIF_PORT_FOR_EACH (&dpif_port, &dump, br->dpif) { |
2112 | struct iface *iface = iface_lookup(br, dpif_port.name); | |
064af421 BP |
2113 | if (iface) { |
2114 | if (iface->dp_ifidx >= 0) { | |
b29ba128 | 2115 | VLOG_WARN("%s reported interface %s twice", |
4c738a8d BP |
2116 | dpif_name(br->dpif), dpif_port.name); |
2117 | } else if (iface_from_dp_ifidx(br, dpif_port.port_no)) { | |
b29ba128 | 2118 | VLOG_WARN("%s reported interface %"PRIu16" twice", |
4c738a8d | 2119 | dpif_name(br->dpif), dpif_port.port_no); |
064af421 | 2120 | } else { |
4c738a8d | 2121 | iface->dp_ifidx = dpif_port.port_no; |
d9a8717a BP |
2122 | hmap_insert(&br->ifaces, &iface->dp_ifidx_node, |
2123 | hash_int(iface->dp_ifidx, 0)); | |
064af421 | 2124 | } |
093e47f4 | 2125 | |
bcd49a45 BP |
2126 | iface_set_ofport(iface->cfg, |
2127 | (iface->dp_ifidx >= 0 | |
2128 | ? odp_port_to_ofp_port(iface->dp_ifidx) | |
2129 | : -1)); | |
064af421 BP |
2130 | } |
2131 | } | |
064af421 BP |
2132 | } |
2133 | \f | |
2134 | /* Bridge packet processing functions. */ | |
2135 | ||
9f5073d8 EJ |
2136 | static bool |
2137 | bond_is_tcp_hash(const struct port *port) | |
2138 | { | |
6aa74308 | 2139 | return port->bond_mode == BM_TCP && lacp_negotiated(port->lacp); |
9f5073d8 EJ |
2140 | } |
2141 | ||
da285df4 | 2142 | static int |
9f5073d8 | 2143 | bond_hash_src(const uint8_t mac[ETH_ADDR_LEN], uint16_t vlan) |
da285df4 | 2144 | { |
e58de0e3 | 2145 | return hash_bytes(mac, ETH_ADDR_LEN, vlan) & BOND_MASK; |
da285df4 BP |
2146 | } |
2147 | ||
9f5073d8 EJ |
2148 | static int bond_hash_tcp(const struct flow *flow, uint16_t vlan) |
2149 | { | |
2150 | struct flow hash_flow; | |
2151 | ||
2152 | memcpy(&hash_flow, flow, sizeof hash_flow); | |
2153 | hash_flow.vlan_tci = 0; | |
2154 | ||
2155 | /* The symmetric quality of this hash function is not required, but | |
2156 | * flow_hash_symmetric_l4 already exists, and is sufficient for our | |
2157 | * purposes, so we use it out of convenience. */ | |
2158 | return flow_hash_symmetric_l4(&hash_flow, vlan) & BOND_MASK; | |
2159 | } | |
2160 | ||
064af421 | 2161 | static struct bond_entry * |
9f5073d8 | 2162 | lookup_bond_entry(const struct port *port, const struct flow *flow, |
e58de0e3 | 2163 | uint16_t vlan) |
064af421 | 2164 | { |
9f5073d8 EJ |
2165 | assert(port->bond_mode != BM_AB); |
2166 | ||
2167 | if (bond_is_tcp_hash(port)) { | |
2168 | return &port->bond_hash[bond_hash_tcp(flow, vlan)]; | |
2169 | } else { | |
2170 | return &port->bond_hash[bond_hash_src(flow->dl_src, vlan)]; | |
2171 | } | |
064af421 BP |
2172 | } |
2173 | ||
990cda85 | 2174 | static struct iface * |
064af421 BP |
2175 | bond_choose_iface(const struct port *port) |
2176 | { | |
8b2a2f4a | 2177 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); |
990cda85 | 2178 | struct iface *best_down_slave; |
83db7968 | 2179 | struct iface *iface; |
8b2a2f4a | 2180 | |
990cda85 | 2181 | best_down_slave = NULL; |
83db7968 | 2182 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
8b2a2f4a | 2183 | if (iface->enabled) { |
990cda85 BP |
2184 | return iface; |
2185 | } else if ((!best_down_slave | |
2186 | || iface->delay_expires < best_down_slave->delay_expires) | |
6aa74308 | 2187 | && lacp_slave_may_enable(port->lacp, iface)) { |
990cda85 | 2188 | best_down_slave = iface; |
064af421 BP |
2189 | } |
2190 | } | |
8b2a2f4a | 2191 | |
990cda85 | 2192 | if (best_down_slave) { |
8b2a2f4a | 2193 | VLOG_INFO_RL(&rl, "interface %s: skipping remaining %lli ms updelay " |
990cda85 BP |
2194 | "since no other interface is up", |
2195 | best_down_slave->name, | |
2196 | best_down_slave->delay_expires - time_msec()); | |
2197 | bond_enable_slave(best_down_slave, true); | |
8b2a2f4a JG |
2198 | } |
2199 | ||
2200 | return best_down_slave; | |
064af421 BP |
2201 | } |
2202 | ||
2203 | static bool | |
9f5073d8 | 2204 | choose_output_iface(const struct port *port, const struct flow *flow, |
e58de0e3 | 2205 | uint16_t vlan, uint16_t *dp_ifidx, tag_type *tags) |
064af421 BP |
2206 | { |
2207 | struct iface *iface; | |
2208 | ||
2209 | assert(port->n_ifaces); | |
2210 | if (port->n_ifaces == 1) { | |
83db7968 | 2211 | iface = port_get_an_iface(port); |
27dcaa1a | 2212 | } else if (port->bond_mode == BM_AB) { |
990cda85 BP |
2213 | iface = port->active_iface; |
2214 | if (!iface) { | |
be02e7c3 EJ |
2215 | *tags |= port->no_ifaces_tag; |
2216 | return false; | |
2217 | } | |
9f5073d8 EJ |
2218 | } else { |
2219 | struct bond_entry *e = lookup_bond_entry(port, flow, vlan); | |
c17f0d5e | 2220 | if (!e->iface || !e->iface->enabled) { |
064af421 BP |
2221 | /* XXX select interface properly. The current interface selection |
2222 | * is only good for testing the rebalancing code. */ | |
c17f0d5e BP |
2223 | e->iface = bond_choose_iface(port); |
2224 | if (!e->iface) { | |
064af421 BP |
2225 | *tags |= port->no_ifaces_tag; |
2226 | return false; | |
2227 | } | |
c0cb6f59 | 2228 | e->tag = tag_create_random(); |
064af421 | 2229 | } |
c0cb6f59 | 2230 | *tags |= e->tag; |
c17f0d5e | 2231 | iface = e->iface; |
064af421 BP |
2232 | } |
2233 | *dp_ifidx = iface->dp_ifidx; | |
2234 | *tags |= iface->tag; /* Currently only used for bonding. */ | |
2235 | return true; | |
2236 | } | |
2237 | ||
2238 | static void | |
c835c3bf | 2239 | bond_link_status_update(struct iface *iface) |
064af421 BP |
2240 | { |
2241 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); | |
2242 | struct port *port = iface->port; | |
6aa74308 | 2243 | bool up = iface->up && lacp_slave_may_enable(port->lacp, iface); |
c25c91fd EJ |
2244 | int updelay, downdelay; |
2245 | ||
2246 | updelay = port->updelay; | |
2247 | downdelay = port->downdelay; | |
2248 | ||
6aa74308 | 2249 | if (lacp_negotiated(port->lacp)) { |
c25c91fd EJ |
2250 | downdelay = 0; |
2251 | updelay = 0; | |
2252 | } | |
2253 | ||
c25c91fd | 2254 | if ((up == iface->enabled) == (iface->delay_expires == LLONG_MAX)) { |
064af421 BP |
2255 | /* Nothing to do. */ |
2256 | return; | |
2257 | } | |
63331829 | 2258 | VLOG_INFO_RL(&rl, "interface %s: link state %s", |
c25c91fd EJ |
2259 | iface->name, up ? "up" : "down"); |
2260 | if (up == iface->enabled) { | |
064af421 BP |
2261 | iface->delay_expires = LLONG_MAX; |
2262 | VLOG_INFO_RL(&rl, "interface %s: will not be %s", | |
c25c91fd | 2263 | iface->name, up ? "disabled" : "enabled"); |
990cda85 | 2264 | } else if (up && !port->active_iface) { |
8b2a2f4a | 2265 | bond_enable_slave(iface, true); |
c25c91fd | 2266 | if (updelay) { |
8b2a2f4a | 2267 | VLOG_INFO_RL(&rl, "interface %s: skipping %d ms updelay since no " |
c25c91fd | 2268 | "other interface is up", iface->name, updelay); |
8b2a2f4a | 2269 | } |
064af421 | 2270 | } else { |
c25c91fd | 2271 | int delay = up ? updelay : downdelay; |
064af421 BP |
2272 | iface->delay_expires = time_msec() + delay; |
2273 | if (delay) { | |
2274 | VLOG_INFO_RL(&rl, | |
2275 | "interface %s: will be %s if it stays %s for %d ms", | |
2276 | iface->name, | |
c25c91fd EJ |
2277 | up ? "enabled" : "disabled", |
2278 | up ? "up" : "down", | |
064af421 BP |
2279 | delay); |
2280 | } | |
2281 | } | |
2282 | } | |
2283 | ||
2284 | static void | |
2285 | bond_choose_active_iface(struct port *port) | |
2286 | { | |
2287 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20); | |
2288 | ||
2289 | port->active_iface = bond_choose_iface(port); | |
990cda85 | 2290 | if (port->active_iface) { |
064af421 | 2291 | VLOG_INFO_RL(&rl, "port %s: active interface is now %s", |
990cda85 | 2292 | port->name, port->active_iface->name); |
064af421 BP |
2293 | } else { |
2294 | VLOG_WARN_RL(&rl, "port %s: all ports disabled, no active interface", | |
2295 | port->name); | |
2296 | } | |
2297 | } | |
2298 | ||
da285df4 BP |
2299 | static void |
2300 | bond_enable_slave(struct iface *iface, bool enable) | |
2301 | { | |
2302 | struct port *port = iface->port; | |
2303 | struct bridge *br = port->bridge; | |
2304 | ||
8b2a2f4a JG |
2305 | /* This acts as a recursion check. If the act of disabling a slave |
2306 | * causes a different slave to be enabled, the flag will allow us to | |
2307 | * skip redundant work when we reenter this function. It must be | |
2308 | * cleared on exit to keep things safe with multiple bonds. */ | |
2309 | static bool moving_active_iface = false; | |
2310 | ||
da285df4 BP |
2311 | iface->delay_expires = LLONG_MAX; |
2312 | if (enable == iface->enabled) { | |
2313 | return; | |
2314 | } | |
2315 | ||
2316 | iface->enabled = enable; | |
2317 | if (!iface->enabled) { | |
17ea75b2 | 2318 | VLOG_WARN("interface %s: disabled", iface->name); |
da285df4 | 2319 | ofproto_revalidate(br->ofproto, iface->tag); |
990cda85 | 2320 | if (iface == port->active_iface) { |
8b2a2f4a JG |
2321 | /* Disabling a slave can lead to another slave being immediately |
2322 | * enabled if there will be no active slaves but one is waiting | |
2323 | * on an updelay. In this case we do not need to run most of the | |
2324 | * code for the newly enabled slave since there was no period | |
2325 | * without an active slave and it is redundant with the disabling | |
2326 | * path. */ | |
2327 | moving_active_iface = true; | |
da285df4 BP |
2328 | bond_choose_active_iface(port); |
2329 | } | |
2330 | bond_send_learning_packets(port); | |
2331 | } else { | |
17ea75b2 | 2332 | VLOG_WARN("interface %s: enabled", iface->name); |
990cda85 | 2333 | if (!port->active_iface && !moving_active_iface) { |
da285df4 BP |
2334 | ofproto_revalidate(br->ofproto, port->no_ifaces_tag); |
2335 | bond_choose_active_iface(port); | |
2336 | bond_send_learning_packets(port); | |
2337 | } | |
2338 | iface->tag = tag_create_random(); | |
2339 | } | |
8b2a2f4a JG |
2340 | |
2341 | moving_active_iface = false; | |
da285df4 BP |
2342 | } |
2343 | ||
8722022c BP |
2344 | /* Attempts to make the sum of the bond slaves' statistics appear on the fake |
2345 | * bond interface. */ | |
2346 | static void | |
2347 | bond_update_fake_iface_stats(struct port *port) | |
2348 | { | |
2349 | struct netdev_stats bond_stats; | |
2350 | struct netdev *bond_dev; | |
83db7968 | 2351 | struct iface *iface; |
8722022c BP |
2352 | |
2353 | memset(&bond_stats, 0, sizeof bond_stats); | |
2354 | ||
83db7968 | 2355 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
8722022c BP |
2356 | struct netdev_stats slave_stats; |
2357 | ||
83db7968 | 2358 | if (!netdev_get_stats(iface->netdev, &slave_stats)) { |
f4b6076a JG |
2359 | /* XXX: We swap the stats here because they are swapped back when |
2360 | * reported by the internal device. The reason for this is | |
2361 | * internal devices normally represent packets going into the system | |
2362 | * but when used as fake bond device they represent packets leaving | |
2363 | * the system. We really should do this in the internal device | |
2364 | * itself because changing it here reverses the counts from the | |
2365 | * perspective of the switch. However, the internal device doesn't | |
2366 | * know what type of device it represents so we have to do it here | |
2367 | * for now. */ | |
2368 | bond_stats.tx_packets += slave_stats.rx_packets; | |
2369 | bond_stats.tx_bytes += slave_stats.rx_bytes; | |
2370 | bond_stats.rx_packets += slave_stats.tx_packets; | |
2371 | bond_stats.rx_bytes += slave_stats.tx_bytes; | |
8722022c BP |
2372 | } |
2373 | } | |
2374 | ||
2375 | if (!netdev_open_default(port->name, &bond_dev)) { | |
2376 | netdev_set_stats(bond_dev, &bond_stats); | |
2377 | netdev_close(bond_dev); | |
2378 | } | |
2379 | } | |
2380 | ||
064af421 | 2381 | static void |
21dcb94f | 2382 | bond_run(struct port *port) |
064af421 | 2383 | { |
83db7968 | 2384 | struct iface *iface; |
0bb5c3ec | 2385 | |
21dcb94f EJ |
2386 | if (port->n_ifaces < 2) { |
2387 | return; | |
2388 | } | |
0bb5c3ec | 2389 | |
83db7968 BP |
2390 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
2391 | bond_link_status_update(iface); | |
21dcb94f | 2392 | } |
8722022c | 2393 | |
83db7968 | 2394 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
21dcb94f EJ |
2395 | if (time_msec() >= iface->delay_expires) { |
2396 | bond_enable_slave(iface, !iface->enabled); | |
8b2a2f4a | 2397 | } |
064af421 | 2398 | } |
21dcb94f EJ |
2399 | |
2400 | if (port->bond_fake_iface | |
2401 | && time_msec() >= port->bond_next_fake_iface_update) { | |
2402 | bond_update_fake_iface_stats(port); | |
2403 | port->bond_next_fake_iface_update = time_msec() + 1000; | |
2404 | } | |
064af421 BP |
2405 | } |
2406 | ||
2407 | static void | |
21dcb94f | 2408 | bond_wait(struct port *port) |
064af421 | 2409 | { |
83db7968 | 2410 | struct iface *iface; |
064af421 | 2411 | |
21dcb94f EJ |
2412 | if (port->n_ifaces < 2) { |
2413 | return; | |
2414 | } | |
63331829 | 2415 | |
83db7968 | 2416 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
21dcb94f EJ |
2417 | if (iface->delay_expires != LLONG_MAX) { |
2418 | poll_timer_wait_until(iface->delay_expires); | |
8722022c | 2419 | } |
064af421 | 2420 | } |
21dcb94f EJ |
2421 | |
2422 | if (port->bond_fake_iface) { | |
2423 | poll_timer_wait_until(port->bond_next_fake_iface_update); | |
2424 | } | |
064af421 BP |
2425 | } |
2426 | ||
2427 | static bool | |
0c62a7ad | 2428 | set_dst(struct dst *dst, const struct flow *flow, |
064af421 BP |
2429 | const struct port *in_port, const struct port *out_port, |
2430 | tag_type *tags) | |
2431 | { | |
0c62a7ad | 2432 | dst->vlan = (out_port->vlan >= 0 ? OFP_VLAN_NONE |
064af421 | 2433 | : in_port->vlan >= 0 ? in_port->vlan |
66642cb4 BP |
2434 | : flow->vlan_tci == 0 ? OFP_VLAN_NONE |
2435 | : vlan_tci_to_vid(flow->vlan_tci)); | |
9f5073d8 | 2436 | return choose_output_iface(out_port, flow, dst->vlan, |
0c62a7ad | 2437 | &dst->dp_ifidx, tags); |
064af421 BP |
2438 | } |
2439 | ||
2440 | static void | |
2441 | swap_dst(struct dst *p, struct dst *q) | |
2442 | { | |
2443 | struct dst tmp = *p; | |
2444 | *p = *q; | |
2445 | *q = tmp; | |
2446 | } | |
2447 | ||
2448 | /* Moves all the dsts with vlan == 'vlan' to the front of the 'n_dsts' in | |
2449 | * 'dsts'. (This may help performance by reducing the number of VLAN changes | |
2450 | * that we push to the datapath. We could in fact fully sort the array by | |
2451 | * vlan, but in most cases there are at most two different vlan tags so that's | |
2452 | * possibly overkill.) */ | |
2453 | static void | |
0c62a7ad | 2454 | partition_dsts(struct dst_set *set, int vlan) |
064af421 | 2455 | { |
0c62a7ad BP |
2456 | struct dst *first = set->dsts; |
2457 | struct dst *last = set->dsts + set->n; | |
064af421 BP |
2458 | |
2459 | while (first != last) { | |
2460 | /* Invariants: | |
2461 | * - All dsts < first have vlan == 'vlan'. | |
2462 | * - All dsts >= last have vlan != 'vlan'. | |
2463 | * - first < last. */ | |
2464 | while (first->vlan == vlan) { | |
2465 | if (++first == last) { | |
2466 | return; | |
2467 | } | |
2468 | } | |
2469 | ||
2470 | /* Same invariants, plus one additional: | |
2471 | * - first->vlan != vlan. | |
2472 | */ | |
2473 | while (last[-1].vlan != vlan) { | |
2474 | if (--last == first) { | |
2475 | return; | |
2476 | } | |
2477 | } | |
2478 | ||
2479 | /* Same invariants, plus one additional: | |
2480 | * - last[-1].vlan == vlan.*/ | |
2481 | swap_dst(first++, --last); | |
2482 | } | |
2483 | } | |
2484 | ||
2485 | static int | |
2486 | mirror_mask_ffs(mirror_mask_t mask) | |
2487 | { | |
2488 | BUILD_ASSERT_DECL(sizeof(unsigned int) >= sizeof(mask)); | |
2489 | return ffs(mask); | |
2490 | } | |
2491 | ||
0c62a7ad BP |
2492 | static void |
2493 | dst_set_init(struct dst_set *set) | |
2494 | { | |
2495 | set->dsts = set->builtin; | |
2496 | set->n = 0; | |
2497 | set->allocated = ARRAY_SIZE(set->builtin); | |
2498 | } | |
2499 | ||
2500 | static void | |
2501 | dst_set_add(struct dst_set *set, const struct dst *dst) | |
2502 | { | |
2503 | if (set->n >= set->allocated) { | |
2504 | size_t new_allocated; | |
2505 | struct dst *new_dsts; | |
2506 | ||
2507 | new_allocated = set->allocated * 2; | |
2508 | new_dsts = xmalloc(new_allocated * sizeof *new_dsts); | |
2509 | memcpy(new_dsts, set->dsts, set->n * sizeof *new_dsts); | |
2510 | ||
2511 | dst_set_free(set); | |
2512 | ||
2513 | set->dsts = new_dsts; | |
2514 | set->allocated = new_allocated; | |
2515 | } | |
2516 | set->dsts[set->n++] = *dst; | |
2517 | } | |
2518 | ||
2519 | static void | |
2520 | dst_set_free(struct dst_set *set) | |
2521 | { | |
2522 | if (set->dsts != set->builtin) { | |
2523 | free(set->dsts); | |
2524 | } | |
2525 | } | |
2526 | ||
064af421 | 2527 | static bool |
0c62a7ad | 2528 | dst_is_duplicate(const struct dst_set *set, const struct dst *test) |
064af421 BP |
2529 | { |
2530 | size_t i; | |
0c62a7ad BP |
2531 | for (i = 0; i < set->n; i++) { |
2532 | if (set->dsts[i].vlan == test->vlan | |
2533 | && set->dsts[i].dp_ifidx == test->dp_ifidx) { | |
064af421 BP |
2534 | return true; |
2535 | } | |
2536 | } | |
2537 | return false; | |
2538 | } | |
2539 | ||
2540 | static bool | |
2541 | port_trunks_vlan(const struct port *port, uint16_t vlan) | |
2542 | { | |
3e9c481c BP |
2543 | return (port->vlan < 0 |
2544 | && (!port->trunks || bitmap_is_set(port->trunks, vlan))); | |
064af421 BP |
2545 | } |
2546 | ||
2547 | static bool | |
2548 | port_includes_vlan(const struct port *port, uint16_t vlan) | |
2549 | { | |
2550 | return vlan == port->vlan || port_trunks_vlan(port, vlan); | |
2551 | } | |
2552 | ||
a4e2e1f2 EJ |
2553 | static bool |
2554 | port_is_floodable(const struct port *port) | |
2555 | { | |
83db7968 | 2556 | struct iface *iface; |
a4e2e1f2 | 2557 | |
83db7968 | 2558 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
a4e2e1f2 | 2559 | if (!ofproto_port_is_floodable(port->bridge->ofproto, |
83db7968 | 2560 | iface->dp_ifidx)) { |
a4e2e1f2 EJ |
2561 | return false; |
2562 | } | |
2563 | } | |
2564 | return true; | |
2565 | } | |
2566 | ||
7e559ecf BP |
2567 | /* Returns the tag for 'port''s active iface, or 'port''s no_ifaces_tag if |
2568 | * there is no active iface. */ | |
2569 | static tag_type | |
2570 | port_get_active_iface_tag(const struct port *port) | |
2571 | { | |
990cda85 BP |
2572 | return (port->active_iface |
2573 | ? port->active_iface->tag | |
7e559ecf BP |
2574 | : port->no_ifaces_tag); |
2575 | } | |
2576 | ||
83db7968 BP |
2577 | /* Returns an arbitrary interface within 'port'. |
2578 | * | |
2579 | * 'port' must have at least one interface. */ | |
2580 | static struct iface * | |
2581 | port_get_an_iface(const struct port *port) | |
2582 | { | |
2583 | return CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem); | |
2584 | } | |
2585 | ||
0c62a7ad | 2586 | static void |
ae412e7d | 2587 | compose_dsts(const struct bridge *br, const struct flow *flow, uint16_t vlan, |
064af421 | 2588 | const struct port *in_port, const struct port *out_port, |
0c62a7ad | 2589 | struct dst_set *set, tag_type *tags, uint16_t *nf_output_iface) |
064af421 BP |
2590 | { |
2591 | mirror_mask_t mirrors = in_port->src_mirrors; | |
0c62a7ad | 2592 | struct dst dst; |
66642cb4 | 2593 | int flow_vlan; |
064af421 | 2594 | |
66642cb4 BP |
2595 | flow_vlan = vlan_tci_to_vid(flow->vlan_tci); |
2596 | if (flow_vlan == 0) { | |
2597 | flow_vlan = OFP_VLAN_NONE; | |
2598 | } | |
2599 | ||
064af421 | 2600 | if (out_port == FLOOD_PORT) { |
8052fb14 BP |
2601 | struct port *port; |
2602 | ||
2603 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { | |
a4e2e1f2 EJ |
2604 | if (port != in_port |
2605 | && port_is_floodable(port) | |
2606 | && port_includes_vlan(port, vlan) | |
064af421 | 2607 | && !port->is_mirror_output_port |
0c62a7ad | 2608 | && set_dst(&dst, flow, in_port, port, tags)) { |
064af421 | 2609 | mirrors |= port->dst_mirrors; |
0c62a7ad | 2610 | dst_set_add(set, &dst); |
064af421 BP |
2611 | } |
2612 | } | |
6a07af36 | 2613 | *nf_output_iface = NF_OUT_FLOOD; |
0c62a7ad BP |
2614 | } else if (out_port && set_dst(&dst, flow, in_port, out_port, tags)) { |
2615 | dst_set_add(set, &dst); | |
2616 | *nf_output_iface = dst.dp_ifidx; | |
064af421 | 2617 | mirrors |= out_port->dst_mirrors; |
064af421 BP |
2618 | } |
2619 | ||
2620 | while (mirrors) { | |
2621 | struct mirror *m = br->mirrors[mirror_mask_ffs(mirrors) - 1]; | |
2622 | if (!m->n_vlans || vlan_is_mirrored(m, vlan)) { | |
2623 | if (m->out_port) { | |
0c62a7ad BP |
2624 | if (set_dst(&dst, flow, in_port, m->out_port, tags) |
2625 | && !dst_is_duplicate(set, &dst)) { | |
2626 | dst_set_add(set, &dst); | |
064af421 BP |
2627 | } |
2628 | } else { | |
8052fb14 BP |
2629 | struct port *port; |
2630 | ||
2631 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { | |
064af421 | 2632 | if (port_includes_vlan(port, m->out_vlan) |
0c62a7ad | 2633 | && set_dst(&dst, flow, in_port, port, tags)) |
064af421 BP |
2634 | { |
2635 | if (port->vlan < 0) { | |
0c62a7ad | 2636 | dst.vlan = m->out_vlan; |
064af421 | 2637 | } |
0c62a7ad | 2638 | if (dst_is_duplicate(set, &dst)) { |
274de4d2 BP |
2639 | continue; |
2640 | } | |
43aa5f47 JG |
2641 | |
2642 | /* Use the vlan tag on the original flow instead of | |
2643 | * the one passed in the vlan parameter. This ensures | |
2644 | * that we compare the vlan from before any implicit | |
2645 | * tagging tags place. This is necessary because | |
2646 | * dst->vlan is the final vlan, after removing implicit | |
2647 | * tags. */ | |
0c62a7ad | 2648 | if (port == in_port && dst.vlan == flow_vlan) { |
064af421 BP |
2649 | /* Don't send out input port on same VLAN. */ |
2650 | continue; | |
2651 | } | |
0c62a7ad | 2652 | dst_set_add(set, &dst); |
064af421 BP |
2653 | } |
2654 | } | |
2655 | } | |
2656 | } | |
2657 | mirrors &= mirrors - 1; | |
2658 | } | |
2659 | ||
0c62a7ad | 2660 | partition_dsts(set, flow_vlan); |
064af421 BP |
2661 | } |
2662 | ||
67a4917b | 2663 | static void OVS_UNUSED |
0c62a7ad | 2664 | print_dsts(const struct dst_set *set) |
064af421 | 2665 | { |
0c62a7ad BP |
2666 | size_t i; |
2667 | ||
2668 | for (i = 0; i < set->n; i++) { | |
2669 | const struct dst *dst = &set->dsts[i]; | |
2670 | ||
2671 | printf(">p%"PRIu16, dst->dp_ifidx); | |
2672 | if (dst->vlan != OFP_VLAN_NONE) { | |
2673 | printf("v%"PRIu16, dst->vlan); | |
064af421 BP |
2674 | } |
2675 | } | |
2676 | } | |
2677 | ||
2678 | static void | |
ae412e7d | 2679 | compose_actions(struct bridge *br, const struct flow *flow, uint16_t vlan, |
064af421 | 2680 | const struct port *in_port, const struct port *out_port, |
cdee00fd | 2681 | tag_type *tags, struct ofpbuf *actions, |
6a07af36 | 2682 | uint16_t *nf_output_iface) |
064af421 | 2683 | { |
0c62a7ad | 2684 | struct dst_set set; |
064af421 | 2685 | uint16_t cur_vlan; |
0c62a7ad | 2686 | size_t i; |
064af421 | 2687 | |
0c62a7ad BP |
2688 | dst_set_init(&set); |
2689 | compose_dsts(br, flow, vlan, in_port, out_port, &set, tags, | |
2690 | nf_output_iface); | |
064af421 | 2691 | |
66642cb4 BP |
2692 | cur_vlan = vlan_tci_to_vid(flow->vlan_tci); |
2693 | if (cur_vlan == 0) { | |
2694 | cur_vlan = OFP_VLAN_NONE; | |
2695 | } | |
0c62a7ad BP |
2696 | for (i = 0; i < set.n; i++) { |
2697 | const struct dst *dst = &set.dsts[i]; | |
2698 | if (dst->vlan != cur_vlan) { | |
2699 | if (dst->vlan == OFP_VLAN_NONE) { | |
7aec165d | 2700 | nl_msg_put_flag(actions, ODP_ACTION_ATTR_STRIP_VLAN); |
064af421 | 2701 | } else { |
cdee00fd | 2702 | ovs_be16 tci; |
0c62a7ad | 2703 | tci = htons(dst->vlan & VLAN_VID_MASK); |
cdee00fd | 2704 | tci |= flow->vlan_tci & htons(VLAN_PCP_MASK); |
7aec165d | 2705 | nl_msg_put_be16(actions, ODP_ACTION_ATTR_SET_DL_TCI, tci); |
064af421 | 2706 | } |
0c62a7ad | 2707 | cur_vlan = dst->vlan; |
064af421 | 2708 | } |
7aec165d | 2709 | nl_msg_put_u32(actions, ODP_ACTION_ATTR_OUTPUT, dst->dp_ifidx); |
064af421 | 2710 | } |
0c62a7ad | 2711 | dst_set_free(&set); |
064af421 BP |
2712 | } |
2713 | ||
e96a4d80 JG |
2714 | /* Returns the effective vlan of a packet, taking into account both the |
2715 | * 802.1Q header and implicitly tagged ports. A value of 0 indicates that | |
2716 | * the packet is untagged and -1 indicates it has an invalid header and | |
2717 | * should be dropped. */ | |
ae412e7d | 2718 | static int flow_get_vlan(struct bridge *br, const struct flow *flow, |
e96a4d80 JG |
2719 | struct port *in_port, bool have_packet) |
2720 | { | |
66642cb4 | 2721 | int vlan = vlan_tci_to_vid(flow->vlan_tci); |
e96a4d80 JG |
2722 | if (in_port->vlan >= 0) { |
2723 | if (vlan) { | |
2724 | /* XXX support double tagging? */ | |
2725 | if (have_packet) { | |
2726 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
66642cb4 | 2727 | VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %d tagged " |
e96a4d80 JG |
2728 | "packet received on port %s configured with " |
2729 | "implicit VLAN %"PRIu16, | |
66642cb4 | 2730 | br->name, vlan, in_port->name, in_port->vlan); |
e96a4d80 JG |
2731 | } |
2732 | return -1; | |
2733 | } | |
2734 | vlan = in_port->vlan; | |
2735 | } else { | |
2736 | if (!port_includes_vlan(in_port, vlan)) { | |
2737 | if (have_packet) { | |
2738 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
2739 | VLOG_WARN_RL(&rl, "bridge %s: dropping VLAN %d tagged " | |
2740 | "packet received on port %s not configured for " | |
2741 | "trunking VLAN %d", | |
2742 | br->name, vlan, in_port->name, vlan); | |
2743 | } | |
2744 | return -1; | |
2745 | } | |
2746 | } | |
2747 | ||
2748 | return vlan; | |
2749 | } | |
2750 | ||
7febb910 JG |
2751 | /* A VM broadcasts a gratuitous ARP to indicate that it has resumed after |
2752 | * migration. Older Citrix-patched Linux DomU used gratuitous ARP replies to | |
2753 | * indicate this; newer upstream kernels use gratuitous ARP requests. */ | |
2754 | static bool | |
ae412e7d | 2755 | is_gratuitous_arp(const struct flow *flow) |
7febb910 JG |
2756 | { |
2757 | return (flow->dl_type == htons(ETH_TYPE_ARP) | |
2758 | && eth_addr_is_broadcast(flow->dl_dst) | |
2759 | && (flow->nw_proto == ARP_OP_REPLY | |
2760 | || (flow->nw_proto == ARP_OP_REQUEST | |
2761 | && flow->nw_src == flow->nw_dst))); | |
2762 | } | |
2763 | ||
e96a4d80 | 2764 | static void |
ae412e7d | 2765 | update_learning_table(struct bridge *br, const struct flow *flow, int vlan, |
e96a4d80 JG |
2766 | struct port *in_port) |
2767 | { | |
db8077c3 BP |
2768 | struct mac_entry *mac; |
2769 | ||
2770 | if (!mac_learning_may_learn(br->ml, flow->dl_src, vlan)) { | |
2771 | return; | |
2772 | } | |
2773 | ||
2774 | mac = mac_learning_insert(br->ml, flow->dl_src, vlan); | |
2775 | if (is_gratuitous_arp(flow)) { | |
2776 | /* We don't want to learn from gratuitous ARP packets that are | |
2777 | * reflected back over bond slaves so we lock the learning table. */ | |
2778 | if (in_port->n_ifaces == 1) { | |
2779 | mac_entry_set_grat_arp_lock(mac); | |
2780 | } else if (mac_entry_is_grat_arp_locked(mac)) { | |
2781 | return; | |
2782 | } | |
2783 | } | |
2784 | ||
1648ddd7 | 2785 | if (mac_entry_is_new(mac) || mac->port.p != in_port) { |
e96a4d80 JG |
2786 | /* The log messages here could actually be useful in debugging, |
2787 | * so keep the rate limit relatively high. */ | |
db8077c3 | 2788 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(30, 300); |
e96a4d80 JG |
2789 | VLOG_DBG_RL(&rl, "bridge %s: learned that "ETH_ADDR_FMT" is " |
2790 | "on port %s in VLAN %d", | |
2791 | br->name, ETH_ADDR_ARGS(flow->dl_src), | |
2792 | in_port->name, vlan); | |
db8077c3 | 2793 | |
1648ddd7 | 2794 | mac->port.p = in_port; |
db8077c3 | 2795 | ofproto_revalidate(br->ofproto, mac_learning_changed(br->ml, mac)); |
e96a4d80 JG |
2796 | } |
2797 | } | |
2798 | ||
14a34d00 BP |
2799 | /* Determines whether packets in 'flow' within 'br' should be forwarded or |
2800 | * dropped. Returns true if they may be forwarded, false if they should be | |
2801 | * dropped. | |
2802 | * | |
2803 | * If 'have_packet' is true, it indicates that the caller is processing a | |
2804 | * received packet. If 'have_packet' is false, then the caller is just | |
2805 | * revalidating an existing flow because configuration has changed. Either | |
2806 | * way, 'have_packet' only affects logging (there is no point in logging errors | |
2807 | * during revalidation). | |
2808 | * | |
2809 | * Sets '*in_portp' to the input port. This will be a null pointer if | |
2810 | * flow->in_port does not designate a known input port (in which case | |
2811 | * is_admissible() returns false). | |
2812 | * | |
2813 | * When returning true, sets '*vlanp' to the effective VLAN of the input | |
2814 | * packet, as returned by flow_get_vlan(). | |
2815 | * | |
2816 | * May also add tags to '*tags', although the current implementation only does | |
2817 | * so in one special case. | |
2818 | */ | |
064af421 | 2819 | static bool |
ae412e7d | 2820 | is_admissible(struct bridge *br, const struct flow *flow, bool have_packet, |
14a34d00 | 2821 | tag_type *tags, int *vlanp, struct port **in_portp) |
064af421 BP |
2822 | { |
2823 | struct iface *in_iface; | |
2824 | struct port *in_port; | |
064af421 BP |
2825 | int vlan; |
2826 | ||
2827 | /* Find the interface and port structure for the received packet. */ | |
2828 | in_iface = iface_from_dp_ifidx(br, flow->in_port); | |
2829 | if (!in_iface) { | |
2830 | /* No interface? Something fishy... */ | |
14a34d00 | 2831 | if (have_packet) { |
064af421 BP |
2832 | /* Odd. A few possible reasons here: |
2833 | * | |
2834 | * - We deleted an interface but there are still a few packets | |
2835 | * queued up from it. | |
2836 | * | |
2837 | * - Someone externally added an interface (e.g. with "ovs-dpctl | |
2838 | * add-if") that we don't know about. | |
2839 | * | |
2840 | * - Packet arrived on the local port but the local port is not | |
2841 | * one of our bridge ports. | |
2842 | */ | |
2843 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
2844 | ||
2845 | VLOG_WARN_RL(&rl, "bridge %s: received packet on unknown " | |
d295e8e9 | 2846 | "interface %"PRIu16, br->name, flow->in_port); |
064af421 BP |
2847 | } |
2848 | ||
14a34d00 BP |
2849 | *in_portp = NULL; |
2850 | return false; | |
064af421 | 2851 | } |
14a34d00 BP |
2852 | *in_portp = in_port = in_iface->port; |
2853 | *vlanp = vlan = flow_get_vlan(br, flow, in_port, have_packet); | |
e96a4d80 | 2854 | if (vlan < 0) { |
14a34d00 | 2855 | return false; |
064af421 BP |
2856 | } |
2857 | ||
064af421 BP |
2858 | /* Drop frames for reserved multicast addresses. */ |
2859 | if (eth_addr_is_reserved(flow->dl_dst)) { | |
14a34d00 | 2860 | return false; |
064af421 BP |
2861 | } |
2862 | ||
2863 | /* Drop frames on ports reserved for mirroring. */ | |
2864 | if (in_port->is_mirror_output_port) { | |
14a34d00 | 2865 | if (have_packet) { |
f925807d BP |
2866 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); |
2867 | VLOG_WARN_RL(&rl, "bridge %s: dropping packet received on port " | |
2868 | "%s, which is reserved exclusively for mirroring", | |
2869 | br->name, in_port->name); | |
2870 | } | |
14a34d00 | 2871 | return false; |
064af421 BP |
2872 | } |
2873 | ||
c25c91fd | 2874 | /* When using LACP, do not accept packets from disabled interfaces. */ |
6aa74308 | 2875 | if (lacp_negotiated(in_port->lacp) && !in_iface->enabled) { |
c25c91fd EJ |
2876 | return false; |
2877 | } | |
2878 | ||
2879 | /* Packets received on non-LACP bonds need special attention to avoid | |
2880 | * duplicates. */ | |
6aa74308 | 2881 | if (in_port->n_ifaces > 1 && !lacp_negotiated(in_port->lacp)) { |
db8077c3 | 2882 | struct mac_entry *mac; |
3a55ef14 JG |
2883 | |
2884 | if (eth_addr_is_multicast(flow->dl_dst)) { | |
7e559ecf | 2885 | *tags |= port_get_active_iface_tag(in_port); |
990cda85 | 2886 | if (in_port->active_iface != in_iface) { |
3a55ef14 | 2887 | /* Drop all multicast packets on inactive slaves. */ |
14a34d00 | 2888 | return false; |
c93b1d6a | 2889 | } |
064af421 | 2890 | } |
3a55ef14 JG |
2891 | |
2892 | /* Drop all packets for which we have learned a different input | |
2893 | * port, because we probably sent the packet on one slave and got | |
5d0ae138 | 2894 | * it back on the other. Gratuitous ARP packets are an exception |
7febb910 JG |
2895 | * to this rule: the host has moved to another switch. The exception |
2896 | * to the exception is if we locked the learning table to avoid | |
2897 | * reflections on bond slaves. If this is the case, just drop the | |
2898 | * packet now. */ | |
db8077c3 | 2899 | mac = mac_learning_lookup(br->ml, flow->dl_src, vlan, NULL); |
1648ddd7 | 2900 | if (mac && mac->port.p != in_port && |
db8077c3 | 2901 | (!is_gratuitous_arp(flow) || mac_entry_is_grat_arp_locked(mac))) { |
14a34d00 | 2902 | return false; |
3a55ef14 | 2903 | } |
064af421 BP |
2904 | } |
2905 | ||
14a34d00 BP |
2906 | return true; |
2907 | } | |
2908 | ||
2909 | /* If the composed actions may be applied to any packet in the given 'flow', | |
2910 | * returns true. Otherwise, the actions should only be applied to 'packet', or | |
2911 | * not at all, if 'packet' was NULL. */ | |
2912 | static bool | |
ae412e7d | 2913 | process_flow(struct bridge *br, const struct flow *flow, |
cdee00fd | 2914 | const struct ofpbuf *packet, struct ofpbuf *actions, |
14a34d00 BP |
2915 | tag_type *tags, uint16_t *nf_output_iface) |
2916 | { | |
2917 | struct port *in_port; | |
2918 | struct port *out_port; | |
db8077c3 | 2919 | struct mac_entry *mac; |
14a34d00 | 2920 | int vlan; |
14a34d00 BP |
2921 | |
2922 | /* Check whether we should drop packets in this flow. */ | |
2923 | if (!is_admissible(br, flow, packet != NULL, tags, &vlan, &in_port)) { | |
2924 | out_port = NULL; | |
2925 | goto done; | |
2926 | } | |
2927 | ||
93dfc067 JG |
2928 | /* Learn source MAC (but don't try to learn from revalidation). */ |
2929 | if (packet) { | |
e96a4d80 | 2930 | update_learning_table(br, flow, vlan, in_port); |
93dfc067 JG |
2931 | } |
2932 | ||
2933 | /* Determine output port. */ | |
db8077c3 | 2934 | mac = mac_learning_lookup(br->ml, flow->dl_dst, vlan, tags); |
1648ddd7 | 2935 | if (mac) { |
bbb1951c | 2936 | out_port = mac->port.p; |
e96a4d80 | 2937 | } else if (!packet && !eth_addr_is_multicast(flow->dl_dst)) { |
93dfc067 | 2938 | /* If we are revalidating but don't have a learning entry then |
e96a4d80 JG |
2939 | * eject the flow. Installing a flow that floods packets opens |
2940 | * up a window of time where we could learn from a packet reflected | |
2941 | * on a bond and blackhole packets before the learning table is | |
2942 | * updated to reflect the correct port. */ | |
93dfc067 | 2943 | return false; |
1609aa03 BP |
2944 | } else { |
2945 | out_port = FLOOD_PORT; | |
064af421 BP |
2946 | } |
2947 | ||
ba54bf4f BP |
2948 | /* Don't send packets out their input ports. */ |
2949 | if (in_port == out_port) { | |
064af421 BP |
2950 | out_port = NULL; |
2951 | } | |
2952 | ||
2953 | done: | |
14a34d00 BP |
2954 | if (in_port) { |
2955 | compose_actions(br, flow, vlan, in_port, out_port, tags, actions, | |
2956 | nf_output_iface); | |
2957 | } | |
064af421 | 2958 | |
69d60f9f | 2959 | return true; |
064af421 BP |
2960 | } |
2961 | ||
064af421 | 2962 | static bool |
ae412e7d | 2963 | bridge_normal_ofhook_cb(const struct flow *flow, const struct ofpbuf *packet, |
cdee00fd | 2964 | struct ofpbuf *actions, tag_type *tags, |
6a07af36 | 2965 | uint16_t *nf_output_iface, void *br_) |
064af421 BP |
2966 | { |
2967 | struct bridge *br = br_; | |
2968 | ||
064af421 | 2969 | COVERAGE_INC(bridge_process_flow); |
ebe482fd EJ |
2970 | return process_flow(br, flow, packet, actions, tags, nf_output_iface); |
2971 | } | |
2972 | ||
2973 | static bool | |
2974 | bridge_special_ofhook_cb(const struct flow *flow, | |
2975 | const struct ofpbuf *packet, void *br_) | |
2976 | { | |
2977 | struct iface *iface; | |
2978 | struct bridge *br = br_; | |
26d79bf2 | 2979 | |
b31bcf60 EJ |
2980 | iface = iface_from_dp_ifidx(br, flow->in_port); |
2981 | ||
e7934396 | 2982 | if (flow->dl_type == htons(ETH_TYPE_LACP)) { |
ebe482fd | 2983 | |
6aa74308 EJ |
2984 | if (iface && iface->port->lacp && packet) { |
2985 | const struct lacp_pdu *pdu = parse_lacp_packet(packet); | |
2986 | ||
2987 | if (pdu) { | |
2988 | COVERAGE_INC(bridge_process_lacp); | |
2989 | lacp_process_pdu(iface->port->lacp, iface, pdu); | |
2990 | } | |
c25c91fd EJ |
2991 | } |
2992 | return false; | |
b31bcf60 EJ |
2993 | } |
2994 | ||
ebe482fd | 2995 | return true; |
064af421 BP |
2996 | } |
2997 | ||
2998 | static void | |
ae412e7d | 2999 | bridge_account_flow_ofhook_cb(const struct flow *flow, tag_type tags, |
cdee00fd | 3000 | const struct nlattr *actions, |
cf22f8cb | 3001 | size_t actions_len, |
7006c033 | 3002 | uint64_t n_bytes, void *br_) |
064af421 BP |
3003 | { |
3004 | struct bridge *br = br_; | |
cdee00fd | 3005 | const struct nlattr *a; |
db0e2ad1 | 3006 | struct port *in_port; |
26d79bf2 | 3007 | tag_type dummy = 0; |
cdee00fd | 3008 | unsigned int left; |
db0e2ad1 | 3009 | int vlan; |
064af421 | 3010 | |
26d79bf2 BP |
3011 | /* Feed information from the active flows back into the learning table to |
3012 | * ensure that table is always in sync with what is actually flowing | |
3013 | * through the datapath. | |
3014 | * | |
3015 | * We test that 'tags' is nonzero to ensure that only flows that include an | |
3016 | * OFPP_NORMAL action are used for learning. This works because | |
3017 | * bridge_normal_ofhook_cb() always sets a nonzero tag value. */ | |
3018 | if (tags && is_admissible(br, flow, false, &dummy, &vlan, &in_port)) { | |
db0e2ad1 | 3019 | update_learning_table(br, flow, vlan, in_port); |
e96a4d80 JG |
3020 | } |
3021 | ||
26d79bf2 | 3022 | /* Account for bond slave utilization. */ |
064af421 BP |
3023 | if (!br->has_bonded_ports) { |
3024 | return; | |
3025 | } | |
cdee00fd | 3026 | NL_ATTR_FOR_EACH_UNSAFE (a, left, actions, actions_len) { |
7aec165d | 3027 | if (nl_attr_type(a) == ODP_ACTION_ATTR_OUTPUT) { |
cdee00fd | 3028 | struct port *out_port = port_from_dp_ifidx(br, nl_attr_get_u32(a)); |
be02e7c3 | 3029 | if (out_port && out_port->n_ifaces >= 2 && |
f48f70b7 | 3030 | out_port->bond_mode != BM_AB) { |
e58de0e3 EJ |
3031 | uint16_t vlan = (flow->vlan_tci |
3032 | ? vlan_tci_to_vid(flow->vlan_tci) | |
3033 | : OFP_VLAN_NONE); | |
9f5073d8 | 3034 | struct bond_entry *e = lookup_bond_entry(out_port, flow, vlan); |
064af421 BP |
3035 | e->tx_bytes += n_bytes; |
3036 | } | |
3037 | } | |
3038 | } | |
3039 | } | |
3040 | ||
3041 | static void | |
3042 | bridge_account_checkpoint_ofhook_cb(void *br_) | |
3043 | { | |
3044 | struct bridge *br = br_; | |
8052fb14 | 3045 | struct port *port; |
c8143c88 | 3046 | long long int now; |
064af421 BP |
3047 | |
3048 | if (!br->has_bonded_ports) { | |
3049 | return; | |
3050 | } | |
3051 | ||
c8143c88 | 3052 | now = time_msec(); |
8052fb14 | 3053 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
f48f70b7 | 3054 | if (port->n_ifaces > 1 && port->bond_mode != BM_AB |
be02e7c3 | 3055 | && now >= port->bond_next_rebalance) { |
c8143c88 | 3056 | port->bond_next_rebalance = now + port->bond_rebalance_interval; |
064af421 BP |
3057 | bond_rebalance_port(port); |
3058 | } | |
3059 | } | |
3060 | } | |
3061 | ||
3062 | static struct ofhooks bridge_ofhooks = { | |
064af421 | 3063 | bridge_normal_ofhook_cb, |
ebe482fd | 3064 | bridge_special_ofhook_cb, |
064af421 BP |
3065 | bridge_account_flow_ofhook_cb, |
3066 | bridge_account_checkpoint_ofhook_cb, | |
3067 | }; | |
3068 | \f | |
2303f3b2 BP |
3069 | /* Bonding functions. */ |
3070 | ||
064af421 BP |
3071 | /* Statistics for a single interface on a bonded port, used for load-based |
3072 | * bond rebalancing. */ | |
3073 | struct slave_balance { | |
3074 | struct iface *iface; /* The interface. */ | |
3075 | uint64_t tx_bytes; /* Sum of hashes[*]->tx_bytes. */ | |
3076 | ||
3077 | /* All the "bond_entry"s that are assigned to this interface, in order of | |
3078 | * increasing tx_bytes. */ | |
3079 | struct bond_entry **hashes; | |
3080 | size_t n_hashes; | |
3081 | }; | |
3082 | ||
be02e7c3 | 3083 | static const char * |
27dcaa1a EJ |
3084 | bond_mode_to_string(enum bond_mode bm) { |
3085 | static char *bm_slb = "balance-slb"; | |
3086 | static char *bm_ab = "active-backup"; | |
9f5073d8 | 3087 | static char *bm_tcp = "balance-tcp"; |
be02e7c3 | 3088 | |
27dcaa1a EJ |
3089 | switch (bm) { |
3090 | case BM_SLB: return bm_slb; | |
3091 | case BM_AB: return bm_ab; | |
9f5073d8 | 3092 | case BM_TCP: return bm_tcp; |
be02e7c3 EJ |
3093 | } |
3094 | ||
3095 | NOT_REACHED(); | |
3096 | return NULL; | |
3097 | } | |
3098 | ||
064af421 BP |
3099 | /* Sorts pointers to pointers to bond_entries in ascending order by the |
3100 | * interface to which they are assigned, and within a single interface in | |
3101 | * ascending order of bytes transmitted. */ | |
3102 | static int | |
3103 | compare_bond_entries(const void *a_, const void *b_) | |
3104 | { | |
3105 | const struct bond_entry *const *ap = a_; | |
3106 | const struct bond_entry *const *bp = b_; | |
3107 | const struct bond_entry *a = *ap; | |
3108 | const struct bond_entry *b = *bp; | |
c17f0d5e BP |
3109 | if (a->iface != b->iface) { |
3110 | return a->iface > b->iface ? 1 : -1; | |
064af421 BP |
3111 | } else if (a->tx_bytes != b->tx_bytes) { |
3112 | return a->tx_bytes > b->tx_bytes ? 1 : -1; | |
3113 | } else { | |
3114 | return 0; | |
3115 | } | |
3116 | } | |
3117 | ||
3118 | /* Sorts slave_balances so that enabled ports come first, and otherwise in | |
3119 | * *descending* order by number of bytes transmitted. */ | |
3120 | static int | |
3121 | compare_slave_balance(const void *a_, const void *b_) | |
3122 | { | |
3123 | const struct slave_balance *a = a_; | |
3124 | const struct slave_balance *b = b_; | |
3125 | if (a->iface->enabled != b->iface->enabled) { | |
3126 | return a->iface->enabled ? -1 : 1; | |
3127 | } else if (a->tx_bytes != b->tx_bytes) { | |
3128 | return a->tx_bytes > b->tx_bytes ? -1 : 1; | |
3129 | } else { | |
3130 | return 0; | |
3131 | } | |
3132 | } | |
3133 | ||
3134 | static void | |
3135 | swap_bals(struct slave_balance *a, struct slave_balance *b) | |
3136 | { | |
3137 | struct slave_balance tmp = *a; | |
3138 | *a = *b; | |
3139 | *b = tmp; | |
3140 | } | |
3141 | ||
3142 | /* Restores the 'n_bals' slave_balance structures in 'bals' to sorted order | |
3143 | * given that 'p' (and only 'p') might be in the wrong location. | |
3144 | * | |
3145 | * This function invalidates 'p', since it might now be in a different memory | |
3146 | * location. */ | |
3147 | static void | |
3148 | resort_bals(struct slave_balance *p, | |
3149 | struct slave_balance bals[], size_t n_bals) | |
3150 | { | |
3151 | if (n_bals > 1) { | |
3152 | for (; p > bals && p->tx_bytes > p[-1].tx_bytes; p--) { | |
3153 | swap_bals(p, p - 1); | |
3154 | } | |
3155 | for (; p < &bals[n_bals - 1] && p->tx_bytes < p[1].tx_bytes; p++) { | |
3156 | swap_bals(p, p + 1); | |
3157 | } | |
3158 | } | |
3159 | } | |
3160 | ||
3161 | static void | |
3162 | log_bals(const struct slave_balance *bals, size_t n_bals, struct port *port) | |
3163 | { | |
3164 | if (VLOG_IS_DBG_ENABLED()) { | |
3165 | struct ds ds = DS_EMPTY_INITIALIZER; | |
3166 | const struct slave_balance *b; | |
3167 | ||
3168 | for (b = bals; b < bals + n_bals; b++) { | |
3169 | size_t i; | |
3170 | ||
3171 | if (b > bals) { | |
3172 | ds_put_char(&ds, ','); | |
3173 | } | |
3174 | ds_put_format(&ds, " %s %"PRIu64"kB", | |
3175 | b->iface->name, b->tx_bytes / 1024); | |
3176 | ||
3177 | if (!b->iface->enabled) { | |
3178 | ds_put_cstr(&ds, " (disabled)"); | |
3179 | } | |
3180 | if (b->n_hashes > 0) { | |
3181 | ds_put_cstr(&ds, " ("); | |
3182 | for (i = 0; i < b->n_hashes; i++) { | |
3183 | const struct bond_entry *e = b->hashes[i]; | |
3184 | if (i > 0) { | |
3185 | ds_put_cstr(&ds, " + "); | |
3186 | } | |
3187 | ds_put_format(&ds, "h%td: %"PRIu64"kB", | |
3188 | e - port->bond_hash, e->tx_bytes / 1024); | |
3189 | } | |
3190 | ds_put_cstr(&ds, ")"); | |
3191 | } | |
3192 | } | |
3193 | VLOG_DBG("bond %s:%s", port->name, ds_cstr(&ds)); | |
3194 | ds_destroy(&ds); | |
3195 | } | |
3196 | } | |
3197 | ||
3198 | /* Shifts 'hash' from 'from' to 'to' within 'port'. */ | |
3199 | static void | |
3200 | bond_shift_load(struct slave_balance *from, struct slave_balance *to, | |
5422a9e1 | 3201 | int hash_idx) |
064af421 | 3202 | { |
5422a9e1 | 3203 | struct bond_entry *hash = from->hashes[hash_idx]; |
064af421 BP |
3204 | struct port *port = from->iface->port; |
3205 | uint64_t delta = hash->tx_bytes; | |
3206 | ||
f48f70b7 | 3207 | assert(port->bond_mode != BM_AB); |
be02e7c3 | 3208 | |
064af421 BP |
3209 | VLOG_INFO("bond %s: shift %"PRIu64"kB of load (with hash %td) " |
3210 | "from %s to %s (now carrying %"PRIu64"kB and " | |
3211 | "%"PRIu64"kB load, respectively)", | |
3212 | port->name, delta / 1024, hash - port->bond_hash, | |
3213 | from->iface->name, to->iface->name, | |
3214 | (from->tx_bytes - delta) / 1024, | |
3215 | (to->tx_bytes + delta) / 1024); | |
3216 | ||
3217 | /* Delete element from from->hashes. | |
3218 | * | |
3219 | * We don't bother to add the element to to->hashes because not only would | |
3220 | * it require more work, the only purpose it would be to allow that hash to | |
3221 | * be migrated to another slave in this rebalancing run, and there is no | |
3222 | * point in doing that. */ | |
5422a9e1 | 3223 | if (hash_idx == 0) { |
064af421 BP |
3224 | from->hashes++; |
3225 | } else { | |
5422a9e1 JG |
3226 | memmove(from->hashes + hash_idx, from->hashes + hash_idx + 1, |
3227 | (from->n_hashes - (hash_idx + 1)) * sizeof *from->hashes); | |
064af421 BP |
3228 | } |
3229 | from->n_hashes--; | |
3230 | ||
3231 | /* Shift load away from 'from' to 'to'. */ | |
3232 | from->tx_bytes -= delta; | |
3233 | to->tx_bytes += delta; | |
3234 | ||
3235 | /* Arrange for flows to be revalidated. */ | |
c0cb6f59 | 3236 | ofproto_revalidate(port->bridge->ofproto, hash->tag); |
c17f0d5e | 3237 | hash->iface = to->iface; |
c0cb6f59 | 3238 | hash->tag = tag_create_random(); |
064af421 BP |
3239 | } |
3240 | ||
3241 | static void | |
3242 | bond_rebalance_port(struct port *port) | |
3243 | { | |
c47cd5f0 | 3244 | struct slave_balance *bals; |
064af421 BP |
3245 | size_t n_bals; |
3246 | struct bond_entry *hashes[BOND_MASK + 1]; | |
3247 | struct slave_balance *b, *from, *to; | |
3248 | struct bond_entry *e; | |
83db7968 | 3249 | struct iface *iface; |
064af421 BP |
3250 | size_t i; |
3251 | ||
9f5073d8 | 3252 | assert(port->bond_mode != BM_AB); |
be02e7c3 | 3253 | |
064af421 BP |
3254 | /* Sets up 'bals' to describe each of the port's interfaces, sorted in |
3255 | * descending order of tx_bytes, so that bals[0] represents the most | |
3256 | * heavily loaded slave and bals[n_bals - 1] represents the least heavily | |
3257 | * loaded slave. | |
3258 | * | |
3259 | * The code is a bit tricky: to avoid dynamically allocating a 'hashes' | |
3260 | * array for each slave_balance structure, we sort our local array of | |
3261 | * hashes in order by slave, so that all of the hashes for a given slave | |
3262 | * become contiguous in memory, and then we point each 'hashes' members of | |
3263 | * a slave_balance structure to the start of a contiguous group. */ | |
3264 | n_bals = port->n_ifaces; | |
83db7968 BP |
3265 | b = bals = xmalloc(n_bals * sizeof *bals); |
3266 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { | |
3267 | b->iface = iface; | |
064af421 BP |
3268 | b->tx_bytes = 0; |
3269 | b->hashes = NULL; | |
3270 | b->n_hashes = 0; | |
83db7968 | 3271 | b++; |
064af421 | 3272 | } |
83db7968 | 3273 | assert(b == &bals[n_bals]); |
064af421 BP |
3274 | for (i = 0; i <= BOND_MASK; i++) { |
3275 | hashes[i] = &port->bond_hash[i]; | |
3276 | } | |
3277 | qsort(hashes, BOND_MASK + 1, sizeof *hashes, compare_bond_entries); | |
3278 | for (i = 0; i <= BOND_MASK; i++) { | |
3279 | e = hashes[i]; | |
c17f0d5e BP |
3280 | if (!e->iface) { |
3281 | continue; | |
3282 | } | |
3283 | ||
3284 | for (b = bals; b < &bals[n_bals]; b++) { | |
3285 | if (b->iface == e->iface) { | |
3286 | b->tx_bytes += e->tx_bytes; | |
3287 | if (!b->hashes) { | |
3288 | b->hashes = &hashes[i]; | |
3289 | } | |
3290 | b->n_hashes++; | |
3291 | break; | |
064af421 | 3292 | } |
064af421 BP |
3293 | } |
3294 | } | |
3295 | qsort(bals, n_bals, sizeof *bals, compare_slave_balance); | |
3296 | log_bals(bals, n_bals, port); | |
3297 | ||
3298 | /* Discard slaves that aren't enabled (which were sorted to the back of the | |
3299 | * array earlier). */ | |
3300 | while (!bals[n_bals - 1].iface->enabled) { | |
3301 | n_bals--; | |
3302 | if (!n_bals) { | |
c47cd5f0 | 3303 | goto exit; |
064af421 BP |
3304 | } |
3305 | } | |
3306 | ||
3307 | /* Shift load from the most-loaded slaves to the least-loaded slaves. */ | |
3308 | to = &bals[n_bals - 1]; | |
3309 | for (from = bals; from < to; ) { | |
3310 | uint64_t overload = from->tx_bytes - to->tx_bytes; | |
3311 | if (overload < to->tx_bytes >> 5 || overload < 100000) { | |
3312 | /* The extra load on 'from' (and all less-loaded slaves), compared | |
3313 | * to that of 'to' (the least-loaded slave), is less than ~3%, or | |
3314 | * it is less than ~1Mbps. No point in rebalancing. */ | |
3315 | break; | |
3316 | } else if (from->n_hashes == 1) { | |
3317 | /* 'from' only carries a single MAC hash, so we can't shift any | |
3318 | * load away from it, even though we want to. */ | |
3319 | from++; | |
3320 | } else { | |
3321 | /* 'from' is carrying significantly more load than 'to', and that | |
3322 | * load is split across at least two different hashes. Pick a hash | |
3323 | * to migrate to 'to' (the least-loaded slave), given that doing so | |
5422a9e1 JG |
3324 | * must decrease the ratio of the load on the two slaves by at |
3325 | * least 0.1. | |
064af421 BP |
3326 | * |
3327 | * The sort order we use means that we prefer to shift away the | |
3328 | * smallest hashes instead of the biggest ones. There is little | |
3329 | * reason behind this decision; we could use the opposite sort | |
3330 | * order to shift away big hashes ahead of small ones. */ | |
5422a9e1 | 3331 | bool order_swapped; |
064af421 BP |
3332 | |
3333 | for (i = 0; i < from->n_hashes; i++) { | |
5422a9e1 | 3334 | double old_ratio, new_ratio; |
064af421 | 3335 | uint64_t delta = from->hashes[i]->tx_bytes; |
5422a9e1 JG |
3336 | |
3337 | if (delta == 0 || from->tx_bytes - delta == 0) { | |
3338 | /* Pointless move. */ | |
3339 | continue; | |
3340 | } | |
3341 | ||
3342 | order_swapped = from->tx_bytes - delta < to->tx_bytes + delta; | |
3343 | ||
3344 | if (to->tx_bytes == 0) { | |
3345 | /* Nothing on the new slave, move it. */ | |
3346 | break; | |
3347 | } | |
3348 | ||
3349 | old_ratio = (double)from->tx_bytes / to->tx_bytes; | |
3350 | new_ratio = (double)(from->tx_bytes - delta) / | |
3351 | (to->tx_bytes + delta); | |
3352 | ||
3353 | if (new_ratio == 0) { | |
3354 | /* Should already be covered but check to prevent division | |
3355 | * by zero. */ | |
3356 | continue; | |
3357 | } | |
3358 | ||
3359 | if (new_ratio < 1) { | |
3360 | new_ratio = 1 / new_ratio; | |
3361 | } | |
3362 | ||
3363 | if (old_ratio - new_ratio > 0.1) { | |
3364 | /* Would decrease the ratio, move it. */ | |
064af421 BP |
3365 | break; |
3366 | } | |
3367 | } | |
3368 | if (i < from->n_hashes) { | |
5422a9e1 | 3369 | bond_shift_load(from, to, i); |
5422a9e1 JG |
3370 | |
3371 | /* If the result of the migration changed the relative order of | |
3372 | * 'from' and 'to' swap them back to maintain invariants. */ | |
3373 | if (order_swapped) { | |
3374 | swap_bals(from, to); | |
3375 | } | |
064af421 BP |
3376 | |
3377 | /* Re-sort 'bals'. Note that this may make 'from' and 'to' | |
3378 | * point to different slave_balance structures. It is only | |
3379 | * valid to do these two operations in a row at all because we | |
3380 | * know that 'from' will not move past 'to' and vice versa. */ | |
3381 | resort_bals(from, bals, n_bals); | |
3382 | resort_bals(to, bals, n_bals); | |
3383 | } else { | |
3384 | from++; | |
3385 | } | |
3386 | } | |
3387 | } | |
3388 | ||
3389 | /* Implement exponentially weighted moving average. A weight of 1/2 causes | |
3390 | * historical data to decay to <1% in 7 rebalancing runs. */ | |
3391 | for (e = &port->bond_hash[0]; e <= &port->bond_hash[BOND_MASK]; e++) { | |
3392 | e->tx_bytes /= 2; | |
332e0d03 | 3393 | if (!e->tx_bytes) { |
c17f0d5e | 3394 | e->iface = NULL; |
332e0d03 | 3395 | } |
064af421 | 3396 | } |
c47cd5f0 BP |
3397 | |
3398 | exit: | |
3399 | free(bals); | |
064af421 | 3400 | } |
2303f3b2 BP |
3401 | |
3402 | static void | |
3403 | bond_send_learning_packets(struct port *port) | |
3404 | { | |
3405 | struct bridge *br = port->bridge; | |
3406 | struct mac_entry *e; | |
3407 | struct ofpbuf packet; | |
3408 | int error, n_packets, n_errors; | |
3409 | ||
990cda85 | 3410 | if (!port->n_ifaces || !port->active_iface || bond_is_tcp_hash(port)) { |
2303f3b2 BP |
3411 | return; |
3412 | } | |
3413 | ||
3414 | ofpbuf_init(&packet, 128); | |
3415 | error = n_packets = n_errors = 0; | |
4e8e4213 | 3416 | LIST_FOR_EACH (e, lru_node, &br->ml->lrus) { |
2303f3b2 | 3417 | tag_type tags = 0; |
3cf10406 | 3418 | uint16_t dp_ifidx; |
ae412e7d | 3419 | struct flow flow; |
2303f3b2 BP |
3420 | int retval; |
3421 | ||
1648ddd7 | 3422 | if (e->port.p == port) { |
9f5073d8 EJ |
3423 | continue; |
3424 | } | |
3425 | ||
3426 | compose_benign_packet(&packet, "Open vSwitch Bond Failover", 0xf177, | |
3427 | e->mac); | |
3428 | flow_extract(&packet, 0, ODPP_NONE, &flow); | |
3429 | ||
3430 | if (!choose_output_iface(port, &flow, e->vlan, &dp_ifidx, &tags)) { | |
2303f3b2 BP |
3431 | continue; |
3432 | } | |
3433 | ||
2303f3b2 BP |
3434 | /* Send packet. */ |
3435 | n_packets++; | |
3cf10406 | 3436 | retval = ofproto_send_packet(br->ofproto, dp_ifidx, e->vlan, &packet); |
2303f3b2 BP |
3437 | if (retval) { |
3438 | error = retval; | |
3439 | n_errors++; | |
3440 | } | |
3441 | } | |
3442 | ofpbuf_uninit(&packet); | |
3443 | ||
3444 | if (n_errors) { | |
3445 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5); | |
3446 | VLOG_WARN_RL(&rl, "bond %s: %d errors sending %d gratuitous learning " | |
3447 | "packets, last error was: %s", | |
3448 | port->name, n_errors, n_packets, strerror(error)); | |
3449 | } else { | |
3450 | VLOG_DBG("bond %s: sent %d gratuitous learning packets", | |
3451 | port->name, n_packets); | |
3452 | } | |
3453 | } | |
064af421 | 3454 | \f |
da285df4 BP |
3455 | /* Bonding unixctl user interface functions. */ |
3456 | ||
3457 | static void | |
8ca79daa | 3458 | bond_unixctl_list(struct unixctl_conn *conn, |
c69ee87c | 3459 | const char *args OVS_UNUSED, void *aux OVS_UNUSED) |
da285df4 BP |
3460 | { |
3461 | struct ds ds = DS_EMPTY_INITIALIZER; | |
3462 | const struct bridge *br; | |
3463 | ||
be02e7c3 | 3464 | ds_put_cstr(&ds, "bridge\tbond\ttype\tslaves\n"); |
da285df4 | 3465 | |
4e8e4213 | 3466 | LIST_FOR_EACH (br, node, &all_bridges) { |
8052fb14 | 3467 | struct port *port; |
da285df4 | 3468 | |
8052fb14 | 3469 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
da285df4 | 3470 | if (port->n_ifaces > 1) { |
83db7968 | 3471 | struct iface *iface; |
da285df4 | 3472 | |
be02e7c3 | 3473 | ds_put_format(&ds, "%s\t%s\t%s\t", br->name, port->name, |
27dcaa1a | 3474 | bond_mode_to_string(port->bond_mode)); |
83db7968 BP |
3475 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
3476 | if (&iface->port_elem != list_front(&port->ifaces)) { | |
da285df4 BP |
3477 | ds_put_cstr(&ds, ", "); |
3478 | } | |
3479 | ds_put_cstr(&ds, iface->name); | |
3480 | } | |
3481 | ds_put_char(&ds, '\n'); | |
3482 | } | |
3483 | } | |
3484 | } | |
3485 | unixctl_command_reply(conn, 200, ds_cstr(&ds)); | |
3486 | ds_destroy(&ds); | |
3487 | } | |
3488 | ||
3489 | static struct port * | |
3490 | bond_find(const char *name) | |
3491 | { | |
3492 | const struct bridge *br; | |
3493 | ||
4e8e4213 | 3494 | LIST_FOR_EACH (br, node, &all_bridges) { |
8052fb14 | 3495 | struct port *port; |
da285df4 | 3496 | |
8052fb14 | 3497 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
da285df4 BP |
3498 | if (!strcmp(port->name, name) && port->n_ifaces > 1) { |
3499 | return port; | |
3500 | } | |
3501 | } | |
3502 | } | |
3503 | return NULL; | |
3504 | } | |
3505 | ||
3506 | static void | |
8ca79daa | 3507 | bond_unixctl_show(struct unixctl_conn *conn, |
c69ee87c | 3508 | const char *args, void *aux OVS_UNUSED) |
da285df4 BP |
3509 | { |
3510 | struct ds ds = DS_EMPTY_INITIALIZER; | |
3511 | const struct port *port; | |
83db7968 | 3512 | struct iface *iface; |
da285df4 BP |
3513 | |
3514 | port = bond_find(args); | |
3515 | if (!port) { | |
3516 | unixctl_command_reply(conn, 501, "no such bond"); | |
3517 | return; | |
3518 | } | |
3519 | ||
27dcaa1a EJ |
3520 | ds_put_format(&ds, "bond_mode: %s\n", |
3521 | bond_mode_to_string(port->bond_mode)); | |
c25c91fd EJ |
3522 | |
3523 | if (port->lacp) { | |
846f1be5 | 3524 | ds_put_format(&ds, "lacp: %s\n", |
7a673515 | 3525 | lacp_is_active(port->lacp) ? "active" : "passive"); |
c25c91fd | 3526 | } else { |
846f1be5 | 3527 | ds_put_cstr(&ds, "lacp: off\n"); |
c25c91fd EJ |
3528 | } |
3529 | ||
9f5073d8 EJ |
3530 | if (port->bond_mode != BM_AB) { |
3531 | ds_put_format(&ds, "bond-hash-algorithm: %s\n", | |
3532 | bond_is_tcp_hash(port) ? "balance-tcp" : "balance-slb"); | |
3533 | } | |
3534 | ||
3535 | ||
63331829 | 3536 | ds_put_format(&ds, "bond-detect-mode: %s\n", |
e5ed989d | 3537 | port->monitor ? "carrier" : "miimon"); |
b42c5c24 | 3538 | |
e5ed989d | 3539 | if (!port->monitor) { |
b42c5c24 | 3540 | ds_put_format(&ds, "bond-miimon-interval: %lld\n", |
e5ed989d | 3541 | port->miimon_interval); |
b42c5c24 EJ |
3542 | } |
3543 | ||
da285df4 BP |
3544 | ds_put_format(&ds, "updelay: %d ms\n", port->updelay); |
3545 | ds_put_format(&ds, "downdelay: %d ms\n", port->downdelay); | |
be02e7c3 | 3546 | |
9f5073d8 | 3547 | if (port->bond_mode != BM_AB) { |
be02e7c3 EJ |
3548 | ds_put_format(&ds, "next rebalance: %lld ms\n", |
3549 | port->bond_next_rebalance - time_msec()); | |
3550 | } | |
3551 | ||
83db7968 | 3552 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
da285df4 | 3553 | struct bond_entry *be; |
9f5073d8 | 3554 | struct flow flow; |
da285df4 BP |
3555 | |
3556 | /* Basic info. */ | |
846f1be5 | 3557 | ds_put_format(&ds, "\nslave %s: %s\n", |
da285df4 | 3558 | iface->name, iface->enabled ? "enabled" : "disabled"); |
990cda85 | 3559 | if (iface == port->active_iface) { |
da285df4 BP |
3560 | ds_put_cstr(&ds, "\tactive slave\n"); |
3561 | } | |
3562 | if (iface->delay_expires != LLONG_MAX) { | |
3563 | ds_put_format(&ds, "\t%s expires in %lld ms\n", | |
3564 | iface->enabled ? "downdelay" : "updelay", | |
3565 | iface->delay_expires - time_msec()); | |
3566 | } | |
3567 | ||
9f5073d8 | 3568 | if (port->bond_mode == BM_AB) { |
be02e7c3 EJ |
3569 | continue; |
3570 | } | |
3571 | ||
da285df4 | 3572 | /* Hashes. */ |
9f5073d8 | 3573 | memset(&flow, 0, sizeof flow); |
da285df4 BP |
3574 | for (be = port->bond_hash; be <= &port->bond_hash[BOND_MASK]; be++) { |
3575 | int hash = be - port->bond_hash; | |
3576 | struct mac_entry *me; | |
3577 | ||
c17f0d5e | 3578 | if (be->iface != iface) { |
da285df4 BP |
3579 | continue; |
3580 | } | |
3581 | ||
2886875a | 3582 | ds_put_format(&ds, "\thash %d: %"PRIu64" kB load\n", |
da285df4 BP |
3583 | hash, be->tx_bytes / 1024); |
3584 | ||
9f5073d8 EJ |
3585 | if (port->bond_mode != BM_SLB) { |
3586 | continue; | |
3587 | } | |
3588 | ||
da285df4 | 3589 | /* MACs. */ |
4e8e4213 | 3590 | LIST_FOR_EACH (me, lru_node, &port->bridge->ml->lrus) { |
da285df4 BP |
3591 | uint16_t dp_ifidx; |
3592 | tag_type tags = 0; | |
9f5073d8 EJ |
3593 | |
3594 | memcpy(flow.dl_src, me->mac, ETH_ADDR_LEN); | |
3595 | if (bond_hash_src(me->mac, me->vlan) == hash | |
1648ddd7 | 3596 | && me->port.p != port |
9f5073d8 | 3597 | && choose_output_iface(port, &flow, me->vlan, |
e58de0e3 | 3598 | &dp_ifidx, &tags) |
da285df4 BP |
3599 | && dp_ifidx == iface->dp_ifidx) |
3600 | { | |
3601 | ds_put_format(&ds, "\t\t"ETH_ADDR_FMT"\n", | |
3602 | ETH_ADDR_ARGS(me->mac)); | |
3603 | } | |
3604 | } | |
3605 | } | |
3606 | } | |
3607 | unixctl_command_reply(conn, 200, ds_cstr(&ds)); | |
3608 | ds_destroy(&ds); | |
3609 | } | |
3610 | ||
3611 | static void | |
8ca79daa | 3612 | bond_unixctl_migrate(struct unixctl_conn *conn, const char *args_, |
c69ee87c | 3613 | void *aux OVS_UNUSED) |
da285df4 BP |
3614 | { |
3615 | char *args = (char *) args_; | |
3616 | char *save_ptr = NULL; | |
3617 | char *bond_s, *hash_s, *slave_s; | |
da285df4 BP |
3618 | struct port *port; |
3619 | struct iface *iface; | |
3620 | struct bond_entry *entry; | |
3621 | int hash; | |
3622 | ||
3623 | bond_s = strtok_r(args, " ", &save_ptr); | |
3624 | hash_s = strtok_r(NULL, " ", &save_ptr); | |
3625 | slave_s = strtok_r(NULL, " ", &save_ptr); | |
3626 | if (!slave_s) { | |
3627 | unixctl_command_reply(conn, 501, | |
3628 | "usage: bond/migrate BOND HASH SLAVE"); | |
3629 | return; | |
3630 | } | |
3631 | ||
3632 | port = bond_find(bond_s); | |
3633 | if (!port) { | |
3634 | unixctl_command_reply(conn, 501, "no such bond"); | |
3635 | return; | |
3636 | } | |
3637 | ||
27dcaa1a | 3638 | if (port->bond_mode != BM_SLB) { |
be02e7c3 EJ |
3639 | unixctl_command_reply(conn, 501, "not an SLB bond"); |
3640 | return; | |
3641 | } | |
3642 | ||
557c178b | 3643 | if (strspn(hash_s, "0123456789") == strlen(hash_s)) { |
da285df4 BP |
3644 | hash = atoi(hash_s) & BOND_MASK; |
3645 | } else { | |
3646 | unixctl_command_reply(conn, 501, "bad hash"); | |
3647 | return; | |
3648 | } | |
3649 | ||
3650 | iface = port_lookup_iface(port, slave_s); | |
3651 | if (!iface) { | |
3652 | unixctl_command_reply(conn, 501, "no such slave"); | |
3653 | return; | |
3654 | } | |
3655 | ||
3656 | if (!iface->enabled) { | |
3657 | unixctl_command_reply(conn, 501, "cannot migrate to disabled slave"); | |
3658 | return; | |
3659 | } | |
3660 | ||
3661 | entry = &port->bond_hash[hash]; | |
c0cb6f59 | 3662 | ofproto_revalidate(port->bridge->ofproto, entry->tag); |
c17f0d5e | 3663 | entry->iface = iface; |
c0cb6f59 | 3664 | entry->tag = tag_create_random(); |
da285df4 BP |
3665 | unixctl_command_reply(conn, 200, "migrated"); |
3666 | } | |
3667 | ||
3668 | static void | |
8ca79daa | 3669 | bond_unixctl_set_active_slave(struct unixctl_conn *conn, const char *args_, |
c69ee87c | 3670 | void *aux OVS_UNUSED) |
da285df4 BP |
3671 | { |
3672 | char *args = (char *) args_; | |
3673 | char *save_ptr = NULL; | |
3674 | char *bond_s, *slave_s; | |
3675 | struct port *port; | |
3676 | struct iface *iface; | |
3677 | ||
3678 | bond_s = strtok_r(args, " ", &save_ptr); | |
3679 | slave_s = strtok_r(NULL, " ", &save_ptr); | |
3680 | if (!slave_s) { | |
3681 | unixctl_command_reply(conn, 501, | |
3682 | "usage: bond/set-active-slave BOND SLAVE"); | |
3683 | return; | |
3684 | } | |
3685 | ||
3686 | port = bond_find(bond_s); | |
3687 | if (!port) { | |
3688 | unixctl_command_reply(conn, 501, "no such bond"); | |
3689 | return; | |
3690 | } | |
3691 | ||
3692 | iface = port_lookup_iface(port, slave_s); | |
3693 | if (!iface) { | |
3694 | unixctl_command_reply(conn, 501, "no such slave"); | |
3695 | return; | |
3696 | } | |
3697 | ||
3698 | if (!iface->enabled) { | |
3699 | unixctl_command_reply(conn, 501, "cannot make disabled slave active"); | |
3700 | return; | |
3701 | } | |
3702 | ||
990cda85 | 3703 | if (port->active_iface != iface) { |
7e559ecf BP |
3704 | ofproto_revalidate(port->bridge->ofproto, |
3705 | port_get_active_iface_tag(port)); | |
990cda85 | 3706 | port->active_iface = iface; |
da285df4 BP |
3707 | VLOG_INFO("port %s: active interface is now %s", |
3708 | port->name, iface->name); | |
3709 | bond_send_learning_packets(port); | |
3710 | unixctl_command_reply(conn, 200, "done"); | |
3711 | } else { | |
3712 | unixctl_command_reply(conn, 200, "no change"); | |
3713 | } | |
3714 | } | |
3715 | ||
3716 | static void | |
3717 | enable_slave(struct unixctl_conn *conn, const char *args_, bool enable) | |
3718 | { | |
3719 | char *args = (char *) args_; | |
3720 | char *save_ptr = NULL; | |
3721 | char *bond_s, *slave_s; | |
3722 | struct port *port; | |
3723 | struct iface *iface; | |
3724 | ||
3725 | bond_s = strtok_r(args, " ", &save_ptr); | |
3726 | slave_s = strtok_r(NULL, " ", &save_ptr); | |
3727 | if (!slave_s) { | |
3728 | unixctl_command_reply(conn, 501, | |
3729 | "usage: bond/enable/disable-slave BOND SLAVE"); | |
3730 | return; | |
3731 | } | |
3732 | ||
3733 | port = bond_find(bond_s); | |
3734 | if (!port) { | |
3735 | unixctl_command_reply(conn, 501, "no such bond"); | |
3736 | return; | |
3737 | } | |
3738 | ||
3739 | iface = port_lookup_iface(port, slave_s); | |
3740 | if (!iface) { | |
3741 | unixctl_command_reply(conn, 501, "no such slave"); | |
3742 | return; | |
3743 | } | |
3744 | ||
3745 | bond_enable_slave(iface, enable); | |
3746 | unixctl_command_reply(conn, 501, enable ? "enabled" : "disabled"); | |
3747 | } | |
3748 | ||
3749 | static void | |
8ca79daa | 3750 | bond_unixctl_enable_slave(struct unixctl_conn *conn, const char *args, |
c69ee87c | 3751 | void *aux OVS_UNUSED) |
da285df4 BP |
3752 | { |
3753 | enable_slave(conn, args, true); | |
3754 | } | |
3755 | ||
3756 | static void | |
8ca79daa | 3757 | bond_unixctl_disable_slave(struct unixctl_conn *conn, const char *args, |
c69ee87c | 3758 | void *aux OVS_UNUSED) |
da285df4 BP |
3759 | { |
3760 | enable_slave(conn, args, false); | |
3761 | } | |
3762 | ||
e0644b61 | 3763 | static void |
e58de0e3 | 3764 | bond_unixctl_hash(struct unixctl_conn *conn, const char *args_, |
c69ee87c | 3765 | void *aux OVS_UNUSED) |
e0644b61 | 3766 | { |
e58de0e3 | 3767 | char *args = (char *) args_; |
a27598cd EJ |
3768 | uint8_t mac[ETH_ADDR_LEN]; |
3769 | uint8_t hash; | |
3770 | char *hash_cstr; | |
e58de0e3 EJ |
3771 | unsigned int vlan; |
3772 | char *mac_s, *vlan_s; | |
3773 | char *save_ptr = NULL; | |
3774 | ||
3775 | mac_s = strtok_r(args, " ", &save_ptr); | |
3776 | vlan_s = strtok_r(NULL, " ", &save_ptr); | |
3777 | ||
3778 | if (vlan_s) { | |
3779 | if (sscanf(vlan_s, "%u", &vlan) != 1) { | |
3780 | unixctl_command_reply(conn, 501, "invalid vlan"); | |
3781 | return; | |
3782 | } | |
3783 | } else { | |
3784 | vlan = OFP_VLAN_NONE; | |
3785 | } | |
a27598cd | 3786 | |
e58de0e3 | 3787 | if (sscanf(mac_s, ETH_ADDR_SCAN_FMT, ETH_ADDR_SCAN_ARGS(mac)) |
a27598cd | 3788 | == ETH_ADDR_SCAN_COUNT) { |
9f5073d8 | 3789 | hash = bond_hash_src(mac, vlan); |
a27598cd EJ |
3790 | |
3791 | hash_cstr = xasprintf("%u", hash); | |
3792 | unixctl_command_reply(conn, 200, hash_cstr); | |
3793 | free(hash_cstr); | |
3794 | } else { | |
3795 | unixctl_command_reply(conn, 501, "invalid mac"); | |
3796 | } | |
e0644b61 IC |
3797 | } |
3798 | ||
da285df4 BP |
3799 | static void |
3800 | bond_init(void) | |
3801 | { | |
8ca79daa BP |
3802 | unixctl_command_register("bond/list", bond_unixctl_list, NULL); |
3803 | unixctl_command_register("bond/show", bond_unixctl_show, NULL); | |
3804 | unixctl_command_register("bond/migrate", bond_unixctl_migrate, NULL); | |
da285df4 | 3805 | unixctl_command_register("bond/set-active-slave", |
8ca79daa BP |
3806 | bond_unixctl_set_active_slave, NULL); |
3807 | unixctl_command_register("bond/enable-slave", bond_unixctl_enable_slave, | |
3808 | NULL); | |
3809 | unixctl_command_register("bond/disable-slave", bond_unixctl_disable_slave, | |
3810 | NULL); | |
3811 | unixctl_command_register("bond/hash", bond_unixctl_hash, NULL); | |
da285df4 BP |
3812 | } |
3813 | \f | |
064af421 BP |
3814 | /* Port functions. */ |
3815 | ||
6aa74308 EJ |
3816 | static void |
3817 | lacp_send_pdu_cb(void *aux, const struct lacp_pdu *pdu) | |
3818 | { | |
3819 | struct iface *iface = aux; | |
3820 | uint8_t ea[ETH_ADDR_LEN]; | |
3821 | int error; | |
3822 | ||
3823 | error = netdev_get_etheraddr(iface->netdev, ea); | |
3824 | if (!error) { | |
3825 | struct ofpbuf packet; | |
40f78b38 | 3826 | struct lacp_pdu *packet_pdu; |
6aa74308 | 3827 | |
40f78b38 | 3828 | ofpbuf_init(&packet, 0); |
5de1bb5c BP |
3829 | packet_pdu = eth_compose(&packet, eth_addr_lacp, ea, ETH_TYPE_LACP, |
3830 | sizeof *packet_pdu); | |
40f78b38 | 3831 | memcpy(packet_pdu, pdu, sizeof *packet_pdu); |
3cf10406 BP |
3832 | ofproto_send_packet(iface->port->bridge->ofproto, |
3833 | iface->dp_ifidx, 0, &packet); | |
6aa74308 EJ |
3834 | ofpbuf_uninit(&packet); |
3835 | } else { | |
3836 | static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10); | |
3837 | VLOG_ERR_RL(&rl, "iface %s: failed to obtain Ethernet address " | |
3838 | "(%s)", iface->name, strerror(error)); | |
3839 | } | |
3840 | } | |
3841 | ||
21dcb94f EJ |
3842 | static void |
3843 | port_run(struct port *port) | |
3844 | { | |
e5ed989d EJ |
3845 | if (port->monitor) { |
3846 | char *devname; | |
3847 | ||
3848 | /* Track carrier going up and down on interfaces. */ | |
3849 | while (!netdev_monitor_poll(port->monitor, &devname)) { | |
3850 | struct iface *iface; | |
3851 | ||
3852 | iface = port_lookup_iface(port, devname); | |
3853 | if (iface) { | |
0b8024eb | 3854 | iface_update_carrier(iface); |
e5ed989d EJ |
3855 | } |
3856 | free(devname); | |
3857 | } | |
3858 | } else if (time_msec() >= port->miimon_next_update) { | |
83db7968 | 3859 | struct iface *iface; |
e5ed989d | 3860 | |
83db7968 | 3861 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
0b8024eb | 3862 | iface_update_carrier(iface); |
e5ed989d EJ |
3863 | } |
3864 | port->miimon_next_update = time_msec() + port->miimon_interval; | |
3865 | } | |
3866 | ||
6aa74308 | 3867 | if (port->lacp) { |
83db7968 | 3868 | struct iface *iface; |
e7934396 | 3869 | |
83db7968 | 3870 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
6aa74308 EJ |
3871 | lacp_slave_enable(port->lacp, iface, iface->enabled); |
3872 | } | |
3873 | ||
3874 | lacp_run(port->lacp, lacp_send_pdu_cb); | |
3875 | } | |
3876 | ||
21dcb94f | 3877 | bond_run(port); |
21dcb94f EJ |
3878 | } |
3879 | ||
3880 | static void | |
3881 | port_wait(struct port *port) | |
3882 | { | |
e5ed989d EJ |
3883 | if (port->monitor) { |
3884 | netdev_monitor_poll_wait(port->monitor); | |
3885 | } else { | |
3886 | poll_timer_wait_until(port->miimon_next_update); | |
3887 | } | |
3888 | ||
6aa74308 EJ |
3889 | if (port->lacp) { |
3890 | lacp_wait(port->lacp); | |
3891 | } | |
3892 | ||
21dcb94f | 3893 | bond_wait(port); |
21dcb94f EJ |
3894 | } |
3895 | ||
76343538 | 3896 | static struct port * |
064af421 BP |
3897 | port_create(struct bridge *br, const char *name) |
3898 | { | |
3899 | struct port *port; | |
3900 | ||
ec6fde61 | 3901 | port = xzalloc(sizeof *port); |
064af421 | 3902 | port->bridge = br; |
064af421 BP |
3903 | port->vlan = -1; |
3904 | port->trunks = NULL; | |
3905 | port->name = xstrdup(name); | |
990cda85 | 3906 | port->active_iface = NULL; |
83db7968 | 3907 | list_init(&port->ifaces); |
064af421 | 3908 | |
8052fb14 | 3909 | hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0)); |
064af421 BP |
3910 | |
3911 | VLOG_INFO("created port %s on bridge %s", port->name, br->name); | |
3912 | bridge_flush(br); | |
76343538 BP |
3913 | |
3914 | return port; | |
064af421 BP |
3915 | } |
3916 | ||
c8143c88 BP |
3917 | static const char * |
3918 | get_port_other_config(const struct ovsrec_port *port, const char *key, | |
3919 | const char *default_value) | |
3920 | { | |
af6278e1 BP |
3921 | const char *value; |
3922 | ||
3923 | value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config, | |
3924 | key); | |
c8143c88 BP |
3925 | return value ? value : default_value; |
3926 | } | |
3927 | ||
c25c91fd EJ |
3928 | static const char * |
3929 | get_interface_other_config(const struct ovsrec_interface *iface, | |
3930 | const char *key, const char *default_value) | |
3931 | { | |
3932 | const char *value; | |
3933 | ||
3934 | value = get_ovsrec_key_value(&iface->header_, | |
3935 | &ovsrec_interface_col_other_config, key); | |
3936 | return value ? value : default_value; | |
3937 | } | |
3938 | ||
4a1ee6ae BP |
3939 | static void |
3940 | port_del_ifaces(struct port *port, const struct ovsrec_port *cfg) | |
3941 | { | |
83db7968 | 3942 | struct iface *iface, *next; |
b3c01ed3 | 3943 | struct sset new_ifaces; |
4a1ee6ae BP |
3944 | size_t i; |
3945 | ||
3946 | /* Collect list of new interfaces. */ | |
b3c01ed3 | 3947 | sset_init(&new_ifaces); |
4a1ee6ae BP |
3948 | for (i = 0; i < cfg->n_interfaces; i++) { |
3949 | const char *name = cfg->interfaces[i]->name; | |
b3c01ed3 | 3950 | sset_add(&new_ifaces, name); |
4a1ee6ae BP |
3951 | } |
3952 | ||
3953 | /* Get rid of deleted interfaces. */ | |
83db7968 | 3954 | LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) { |
b3c01ed3 | 3955 | if (!sset_contains(&new_ifaces, iface->name)) { |
13f5f5b0 | 3956 | iface_destroy(iface); |
4a1ee6ae BP |
3957 | } |
3958 | } | |
3959 | ||
b3c01ed3 | 3960 | sset_destroy(&new_ifaces); |
4a1ee6ae BP |
3961 | } |
3962 | ||
d5346278 BP |
3963 | /* Expires all MAC learning entries associated with 'port' and forces ofproto |
3964 | * to revalidate every flow. */ | |
3965 | static void | |
3966 | port_flush_macs(struct port *port) | |
3967 | { | |
3968 | struct bridge *br = port->bridge; | |
3969 | struct mac_learning *ml = br->ml; | |
3970 | struct mac_entry *mac, *next_mac; | |
3971 | ||
3972 | bridge_flush(br); | |
3973 | LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) { | |
3974 | if (mac->port.p == port) { | |
3975 | mac_learning_expire(ml, mac); | |
3976 | } | |
3977 | } | |
3978 | } | |
3979 | ||
064af421 | 3980 | static void |
76343538 | 3981 | port_reconfigure(struct port *port, const struct ovsrec_port *cfg) |
064af421 | 3982 | { |
63331829 | 3983 | const char *detect_mode; |
b3c01ed3 | 3984 | struct sset new_ifaces; |
7a673515 | 3985 | long long int next_rebalance, miimon_next_update; |
d5346278 | 3986 | bool need_flush = false; |
064af421 BP |
3987 | unsigned long *trunks; |
3988 | int vlan; | |
3989 | size_t i; | |
3990 | ||
76343538 BP |
3991 | port->cfg = cfg; |
3992 | ||
4a1ee6ae | 3993 | /* Update settings. */ |
76343538 BP |
3994 | port->updelay = cfg->bond_updelay; |
3995 | if (port->updelay < 0) { | |
3996 | port->updelay = 0; | |
3997 | } | |
7ef6b685 | 3998 | port->downdelay = cfg->bond_downdelay; |
76343538 BP |
3999 | if (port->downdelay < 0) { |
4000 | port->downdelay = 0; | |
064af421 | 4001 | } |
c8143c88 BP |
4002 | port->bond_rebalance_interval = atoi( |
4003 | get_port_other_config(cfg, "bond-rebalance-interval", "10000")); | |
4004 | if (port->bond_rebalance_interval < 1000) { | |
4005 | port->bond_rebalance_interval = 1000; | |
4006 | } | |
4007 | next_rebalance = time_msec() + port->bond_rebalance_interval; | |
4008 | if (port->bond_next_rebalance > next_rebalance) { | |
4009 | port->bond_next_rebalance = next_rebalance; | |
4010 | } | |
064af421 | 4011 | |
63331829 EJ |
4012 | detect_mode = get_port_other_config(cfg, "bond-detect-mode", |
4013 | "carrier"); | |
4014 | ||
e5ed989d EJ |
4015 | netdev_monitor_destroy(port->monitor); |
4016 | port->monitor = NULL; | |
4017 | ||
4018 | if (strcmp(detect_mode, "miimon")) { | |
4019 | port->monitor = netdev_monitor_create(); | |
4020 | ||
4021 | if (strcmp(detect_mode, "carrier")) { | |
4022 | VLOG_WARN("port %s: unsupported bond-detect-mode %s, " | |
4023 | "defaulting to carrier", port->name, detect_mode); | |
4024 | } | |
63331829 EJ |
4025 | } |
4026 | ||
e5ed989d | 4027 | port->miimon_interval = atoi( |
63331829 | 4028 | get_port_other_config(cfg, "bond-miimon-interval", "200")); |
e5ed989d EJ |
4029 | if (port->miimon_interval < 100) { |
4030 | port->miimon_interval = 100; | |
63331829 | 4031 | } |
e5ed989d EJ |
4032 | miimon_next_update = time_msec() + port->miimon_interval; |
4033 | if (port->miimon_next_update > miimon_next_update) { | |
4034 | port->miimon_next_update = miimon_next_update; | |
63331829 EJ |
4035 | } |
4036 | ||
27dcaa1a EJ |
4037 | if (!port->cfg->bond_mode || |
4038 | !strcmp(port->cfg->bond_mode, bond_mode_to_string(BM_SLB))) { | |
4039 | port->bond_mode = BM_SLB; | |
4040 | } else if (!strcmp(port->cfg->bond_mode, bond_mode_to_string(BM_AB))) { | |
4041 | port->bond_mode = BM_AB; | |
9f5073d8 EJ |
4042 | } else if (!strcmp(port->cfg->bond_mode, bond_mode_to_string(BM_TCP))) { |
4043 | port->bond_mode = BM_TCP; | |
be02e7c3 | 4044 | } else { |
27dcaa1a EJ |
4045 | port->bond_mode = BM_SLB; |
4046 | VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s", | |
4047 | port->name, port->cfg->bond_mode, | |
4048 | bond_mode_to_string(port->bond_mode)); | |
be02e7c3 EJ |
4049 | } |
4050 | ||
4a1ee6ae | 4051 | /* Add new interfaces and update 'cfg' member of existing ones. */ |
b3c01ed3 | 4052 | sset_init(&new_ifaces); |
4a1ee6ae BP |
4053 | for (i = 0; i < cfg->n_interfaces; i++) { |
4054 | const struct ovsrec_interface *if_cfg = cfg->interfaces[i]; | |
76343538 BP |
4055 | struct iface *iface; |
4056 | ||
b3c01ed3 | 4057 | if (!sset_add(&new_ifaces, if_cfg->name)) { |
4a1ee6ae BP |
4058 | VLOG_WARN("port %s: %s specified twice as port interface", |
4059 | port->name, if_cfg->name); | |
bcd49a45 | 4060 | iface_set_ofport(if_cfg, -1); |
4a1ee6ae BP |
4061 | continue; |
4062 | } | |
4063 | ||
4064 | iface = iface_lookup(port->bridge, if_cfg->name); | |
4065 | if (iface) { | |
4066 | if (iface->port != port) { | |
4067 | VLOG_ERR("bridge %s: %s interface is on multiple ports, " | |
4068 | "removing from %s", | |
4069 | port->bridge->name, if_cfg->name, iface->port->name); | |
4070 | continue; | |
4071 | } | |
149f577a | 4072 | iface->cfg = if_cfg; |
4a1ee6ae | 4073 | } else { |
6cefe1da | 4074 | iface = iface_create(port, if_cfg); |
064af421 | 4075 | } |
6cefe1da BP |
4076 | |
4077 | /* Determine interface type. The local port always has type | |
4078 | * "internal". Other ports take their type from the database and | |
4079 | * default to "system" if none is specified. */ | |
4080 | iface->type = (!strcmp(if_cfg->name, port->bridge->name) ? "internal" | |
4081 | : if_cfg->type[0] ? if_cfg->type | |
4082 | : "system"); | |
064af421 | 4083 | } |
b3c01ed3 | 4084 | sset_destroy(&new_ifaces); |
064af421 BP |
4085 | |
4086 | /* Get VLAN tag. */ | |
4087 | vlan = -1; | |
76343538 BP |
4088 | if (cfg->tag) { |
4089 | if (port->n_ifaces < 2) { | |
4090 | vlan = *cfg->tag; | |
064af421 BP |
4091 | if (vlan >= 0 && vlan <= 4095) { |
4092 | VLOG_DBG("port %s: assigning VLAN tag %d", port->name, vlan); | |
76343538 BP |
4093 | } else { |
4094 | vlan = -1; | |
064af421 BP |
4095 | } |
4096 | } else { | |
4097 | /* It's possible that bonded, VLAN-tagged ports make sense. Maybe | |
4098 | * they even work as-is. But they have not been tested. */ | |
4099 | VLOG_WARN("port %s: VLAN tags not supported on bonded ports", | |
4100 | port->name); | |
4101 | } | |
4102 | } | |
4103 | if (port->vlan != vlan) { | |
4104 | port->vlan = vlan; | |
d5346278 | 4105 | need_flush = true; |
064af421 BP |
4106 | } |
4107 | ||
4108 | /* Get trunked VLANs. */ | |
4109 | trunks = NULL; | |
3e9c481c | 4110 | if (vlan < 0 && cfg->n_trunks) { |
76343538 | 4111 | size_t n_errors; |
064af421 BP |
4112 | |
4113 | trunks = bitmap_allocate(4096); | |
064af421 | 4114 | n_errors = 0; |
76343538 BP |
4115 | for (i = 0; i < cfg->n_trunks; i++) { |
4116 | int trunk = cfg->trunks[i]; | |
064af421 BP |
4117 | if (trunk >= 0) { |
4118 | bitmap_set1(trunks, trunk); | |
4119 | } else { | |
4120 | n_errors++; | |
4121 | } | |
4122 | } | |
4123 | if (n_errors) { | |
4124 | VLOG_ERR("port %s: invalid values for %zu trunk VLANs", | |
76343538 | 4125 | port->name, cfg->n_trunks); |
064af421 | 4126 | } |
76343538 | 4127 | if (n_errors == cfg->n_trunks) { |
3e9c481c | 4128 | VLOG_ERR("port %s: no valid trunks, trunking all VLANs", |
76343538 | 4129 | port->name); |
3e9c481c BP |
4130 | bitmap_free(trunks); |
4131 | trunks = NULL; | |
064af421 | 4132 | } |
3e9c481c BP |
4133 | } else if (vlan >= 0 && cfg->n_trunks) { |
4134 | VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan", | |
4135 | port->name); | |
064af421 BP |
4136 | } |
4137 | if (trunks == NULL | |
4138 | ? port->trunks != NULL | |
4139 | : port->trunks == NULL || !bitmap_equal(trunks, port->trunks, 4096)) { | |
d5346278 | 4140 | need_flush = true; |
064af421 BP |
4141 | } |
4142 | bitmap_free(port->trunks); | |
4143 | port->trunks = trunks; | |
d5346278 BP |
4144 | |
4145 | if (need_flush) { | |
4146 | port_flush_macs(port); | |
4147 | } | |
064af421 BP |
4148 | } |
4149 | ||
4150 | static void | |
4151 | port_destroy(struct port *port) | |
4152 | { | |
4153 | if (port) { | |
4154 | struct bridge *br = port->bridge; | |
83db7968 | 4155 | struct iface *iface, *next; |
37e7f427 | 4156 | int i; |
064af421 | 4157 | |
064af421 BP |
4158 | for (i = 0; i < MAX_MIRRORS; i++) { |
4159 | struct mirror *m = br->mirrors[i]; | |
4160 | if (m && m->out_port == port) { | |
4161 | mirror_destroy(m); | |
4162 | } | |
4163 | } | |
4164 | ||
83db7968 BP |
4165 | LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) { |
4166 | iface_destroy(iface); | |
064af421 BP |
4167 | } |
4168 | ||
8052fb14 | 4169 | hmap_remove(&br->ports, &port->hmap_node); |
064af421 | 4170 | |
99707a7a JP |
4171 | VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name); |
4172 | ||
d5346278 BP |
4173 | port_flush_macs(port); |
4174 | ||
60837272 | 4175 | lacp_destroy(port->lacp); |
0bb5c3ec | 4176 | netdev_monitor_destroy(port->monitor); |
064af421 | 4177 | bitmap_free(port->trunks); |
fe0cfbf6 | 4178 | free(port->bond_hash); |
064af421 BP |
4179 | free(port->name); |
4180 | free(port); | |
064af421 BP |
4181 | } |
4182 | } | |
4183 | ||
4184 | static struct port * | |
4185 | port_from_dp_ifidx(const struct bridge *br, uint16_t dp_ifidx) | |
4186 | { | |
4187 | struct iface *iface = iface_from_dp_ifidx(br, dp_ifidx); | |
4188 | return iface ? iface->port : NULL; | |
4189 | } | |
4190 | ||
4191 | static struct port * | |
4192 | port_lookup(const struct bridge *br, const char *name) | |
4193 | { | |
8052fb14 BP |
4194 | struct port *port; |
4195 | ||
4196 | HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0), | |
4197 | &br->ports) { | |
4198 | if (!strcmp(port->name, name)) { | |
4199 | return port; | |
4200 | } | |
4201 | } | |
4202 | return NULL; | |
064af421 BP |
4203 | } |
4204 | ||
da285df4 BP |
4205 | static struct iface * |
4206 | port_lookup_iface(const struct port *port, const char *name) | |
4207 | { | |
4a1ee6ae BP |
4208 | struct iface *iface = iface_lookup(port->bridge, name); |
4209 | return iface && iface->port == port ? iface : NULL; | |
da285df4 BP |
4210 | } |
4211 | ||
7a673515 BP |
4212 | static bool |
4213 | enable_lacp(struct port *port, bool *activep) | |
4214 | { | |
4215 | if (!port->cfg->lacp) { | |
4216 | /* XXX when LACP implementation has been sufficiently tested, enable by | |
4217 | * default and make active on bonded ports. */ | |
4218 | return false; | |
4219 | } else if (!strcmp(port->cfg->lacp, "off")) { | |
4220 | return false; | |
4221 | } else if (!strcmp(port->cfg->lacp, "active")) { | |
4222 | *activep = true; | |
4223 | return true; | |
4224 | } else if (!strcmp(port->cfg->lacp, "passive")) { | |
4225 | *activep = false; | |
4226 | return true; | |
4227 | } else { | |
4228 | VLOG_WARN("port %s: unknown LACP mode %s", | |
4229 | port->name, port->cfg->lacp); | |
4230 | return false; | |
4231 | } | |
4232 | } | |
4233 | ||
bb5bc6c0 BP |
4234 | static void |
4235 | iface_update_lacp(struct iface *iface) | |
4236 | { | |
4237 | struct lacp_slave_settings s; | |
4238 | int priority; | |
4239 | ||
4240 | s.name = iface->name; | |
4241 | s.id = iface->dp_ifidx; | |
4242 | priority = atoi(get_interface_other_config( | |
4243 | iface->cfg, "lacp-port-priority", "0")); | |
4244 | s.priority = (priority >= 0 && priority <= UINT16_MAX ? priority | |
4245 | : UINT16_MAX); | |
4246 | ||
4247 | lacp_slave_register(iface->port->lacp, iface, &s); | |
4248 | } | |
4249 | ||
c25c91fd EJ |
4250 | static void |
4251 | port_update_lacp(struct port *port) | |
4252 | { | |
bb5bc6c0 | 4253 | struct lacp_settings s; |
7a673515 | 4254 | struct iface *iface; |
c25c91fd | 4255 | |
bb5bc6c0 | 4256 | if (!enable_lacp(port, &s.active)) { |
7a673515 BP |
4257 | lacp_destroy(port->lacp); |
4258 | port->lacp = NULL; | |
4259 | return; | |
4260 | } | |
c25c91fd | 4261 | |
7a673515 BP |
4262 | if (!port->lacp) { |
4263 | port->lacp = lacp_create(); | |
4264 | } | |
4265 | ||
bb5bc6c0 BP |
4266 | s.name = port->name; |
4267 | memcpy(s.id, port->bridge->ea, ETH_ADDR_LEN); | |
4268 | s.priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority", | |
7a673515 | 4269 | "0")); |
bb5bc6c0 BP |
4270 | s.fast = !strcmp(get_port_other_config(port->cfg, "lacp-time", "slow"), |
4271 | "fast"); | |
4272 | ||
4273 | if (s.priority <= 0 || s.priority > UINT16_MAX) { | |
7a673515 | 4274 | /* Prefer bondable links if unspecified. */ |
bb5bc6c0 | 4275 | s.priority = UINT16_MAX - (port->n_ifaces > 1); |
7a673515 BP |
4276 | } |
4277 | ||
bb5bc6c0 | 4278 | lacp_configure(port->lacp, &s); |
7a673515 | 4279 | LIST_FOR_EACH (iface, port_elem, &port->ifaces) { |
bb5bc6c0 | 4280 | iface_update_lacp(iface); |
c25c91fd | 4281 | } |
c25c91fd EJ |
4282 | } |
4283 | ||
064af421 BP |
4284 | static void |
4285 | port_update_bonding(struct port *port) | |
4286 | { | |
4287 | if (port->n_ifaces < 2) { | |
4288 | /* Not a bonded port. */ | |
0b8b6f71 BP |
4289 | free(port->bond_hash); |
4290 | port->bond_hash = NULL; | |
be02e7c3 | 4291 | port->bond_fake_iface = false; |
990cda85 | 4292 | port->active_iface = NULL; |
55eccb86 | 4293 | port->no_ifaces_tag = 0; |
064af421 | 4294 | } else { |
0bb5c3ec | 4295 | size_t i; |
064af421 | 4296 | |
9f5073d8 | 4297 | if (port->bond_mode != BM_AB && !port->bond_hash) { |
064af421 BP |
4298 | port->bond_hash = xcalloc(BOND_MASK + 1, sizeof *port->bond_hash); |
4299 | for (i = 0; i <= BOND_MASK; i++) { | |
4300 | struct bond_entry *e = &port->bond_hash[i]; | |
c17f0d5e | 4301 | e->iface = NULL; |
064af421 BP |
4302 | e->tx_bytes = 0; |
4303 | } | |
c8143c88 BP |
4304 | port->bond_next_rebalance |
4305 | = time_msec() + port->bond_rebalance_interval; | |
9f5073d8 | 4306 | } else if (port->bond_mode == BM_AB) { |
be02e7c3 EJ |
4307 | free(port->bond_hash); |
4308 | port->bond_hash = NULL; | |
064af421 | 4309 | } |
55eccb86 EJ |
4310 | |
4311 | if (!port->no_ifaces_tag) { | |
4312 | port->no_ifaces_tag = tag_create_random(); | |
4313 | } | |
4314 | ||
990cda85 | 4315 | if (!port->active_iface) { |
55eccb86 EJ |
4316 | bond_choose_active_iface(port); |
4317 | } | |
4318 | ||
76343538 | 4319 | port->bond_fake_iface = port->cfg->bond_fake_iface; |
55eccb86 EJ |
4320 | if (port->bond_fake_iface) { |
4321 | port->bond_next_fake_iface_update = time_msec(); | |
4322 | } | |
0bb5c3ec | 4323 | |
064af421 BP |
4324 | } |
4325 | } | |
064af421 BP |
4326 | \f |
4327 | /* Interface functions. */ | |
4328 | ||
76343538 | 4329 | static struct iface * |
a740f0de | 4330 | iface_create(struct port *port, const struct ovsrec_interface *if_cfg) |
064af421 | 4331 | { |
4a1ee6ae | 4332 | struct bridge *br = port->bridge; |
064af421 | 4333 | struct iface *iface; |
a740f0de | 4334 | char *name = if_cfg->name; |
064af421 | 4335 | |
ec6fde61 | 4336 | iface = xzalloc(sizeof *iface); |
064af421 | 4337 | iface->port = port; |
064af421 BP |
4338 | iface->name = xstrdup(name); |
4339 | iface->dp_ifidx = -1; | |
4340 | iface->tag = tag_create_random(); | |
064af421 | 4341 | iface->delay_expires = LLONG_MAX; |
0c6aea3f | 4342 | iface->netdev = NULL; |
149f577a | 4343 | iface->cfg = if_cfg; |
064af421 | 4344 | |
2457b24f JG |
4345 | shash_add_assert(&br->iface_by_name, iface->name, iface); |
4346 | ||
83db7968 BP |
4347 | list_push_back(&port->ifaces, &iface->port_elem); |
4348 | port->n_ifaces++; | |
4349 | ||
064af421 | 4350 | if (port->n_ifaces > 1) { |
4a1ee6ae | 4351 | br->has_bonded_ports = true; |
064af421 BP |
4352 | } |
4353 | ||
4354 | VLOG_DBG("attached network device %s to port %s", iface->name, port->name); | |
4355 | ||
4a1ee6ae | 4356 | bridge_flush(br); |
76343538 BP |
4357 | |
4358 | return iface; | |
064af421 BP |
4359 | } |
4360 | ||
4361 | static void | |
4362 | iface_destroy(struct iface *iface) | |
4363 | { | |
4364 | if (iface) { | |
4365 | struct port *port = iface->port; | |
4366 | struct bridge *br = port->bridge; | |
990cda85 | 4367 | bool del_active = port->active_iface == iface; |
c17f0d5e BP |
4368 | |
4369 | if (port->bond_hash) { | |
4370 | struct bond_entry *e; | |
4371 | for (e = port->bond_hash; e <= &port->bond_hash[BOND_MASK]; e++) { | |
4372 | if (e->iface == iface) { | |
4373 | e->iface = NULL; | |
4374 | } | |
4375 | } | |
4376 | } | |
064af421 | 4377 | |
6aa74308 EJ |
4378 | if (iface->port->lacp) { |
4379 | lacp_slave_unregister(iface->port->lacp, iface); | |
4380 | } | |
4381 | ||
e5ed989d | 4382 | if (port->monitor && iface->netdev) { |
7ca5f243 EJ |
4383 | netdev_monitor_remove(port->monitor, iface->netdev); |
4384 | } | |
4385 | ||
4a1ee6ae BP |
4386 | shash_find_and_delete_assert(&br->iface_by_name, iface->name); |
4387 | ||
064af421 | 4388 | if (iface->dp_ifidx >= 0) { |
d9a8717a | 4389 | hmap_remove(&br->ifaces, &iface->dp_ifidx_node); |
064af421 BP |
4390 | } |
4391 | ||
83db7968 BP |
4392 | list_remove(&iface->port_elem); |
4393 | port->n_ifaces--; | |
064af421 | 4394 | |
0c6aea3f | 4395 | netdev_close(iface->netdev); |
064af421 BP |
4396 | |
4397 | if (del_active) { | |
064af421 | 4398 | bond_choose_active_iface(port); |
2303f3b2 | 4399 | bond_send_learning_packets(port); |
064af421 BP |
4400 | } |
4401 | ||
a740f0de JG |
4402 | free(iface->name); |
4403 | free(iface); | |
4404 | ||
064af421 BP |
4405 | bridge_flush(port->bridge); |
4406 | } | |
4407 | } | |
4408 | ||
4409 | static struct iface * | |
4410 | iface_lookup(const struct bridge *br, const char *name) | |
4411 | { | |
4a1ee6ae | 4412 | return shash_find_data(&br->iface_by_name, name); |
064af421 BP |
4413 | } |
4414 | ||
e8fe3026 EJ |
4415 | static struct iface * |
4416 | iface_find(const char *name) | |
4417 | { | |
4418 | const struct bridge *br; | |
4419 | ||
4420 | LIST_FOR_EACH (br, node, &all_bridges) { | |
4421 | struct iface *iface = iface_lookup(br, name); | |
4422 | ||
4423 | if (iface) { | |
4424 | return iface; | |
4425 | } | |
4426 | } | |
4427 | return NULL; | |
4428 | } | |
4429 | ||
064af421 BP |
4430 | static struct iface * |
4431 | iface_from_dp_ifidx(const struct bridge *br, uint16_t dp_ifidx) | |
4432 | { | |
d9a8717a BP |
4433 | struct iface *iface; |
4434 | ||
4e8e4213 | 4435 | HMAP_FOR_EACH_IN_BUCKET (iface, dp_ifidx_node, |
d9a8717a BP |
4436 | hash_int(dp_ifidx, 0), &br->ifaces) { |
4437 | if (iface->dp_ifidx == dp_ifidx) { | |
4438 | return iface; | |
4439 | } | |
4440 | } | |
4441 | return NULL; | |
064af421 | 4442 | } |
557d8e6c | 4443 | |
52df17e7 BP |
4444 | /* Set Ethernet address of 'iface', if one is specified in the configuration |
4445 | * file. */ | |
4446 | static void | |
4447 | iface_set_mac(struct iface *iface) | |
4448 | { | |
76343538 | 4449 | uint8_t ea[ETH_ADDR_LEN]; |
52df17e7 | 4450 | |
76343538 | 4451 | if (iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) { |
52df17e7 BP |
4452 | if (eth_addr_is_multicast(ea)) { |
4453 | VLOG_ERR("interface %s: cannot set MAC to multicast address", | |
4454 | iface->name); | |
4455 | } else if (iface->dp_ifidx == ODPP_LOCAL) { | |
4456 | VLOG_ERR("ignoring iface.%s.mac; use bridge.%s.mac instead", | |
4457 | iface->name, iface->name); | |
4458 | } else { | |
4d678233 | 4459 | int error = netdev_set_etheraddr(iface->netdev, ea); |
52df17e7 BP |
4460 | if (error) { |
4461 | VLOG_ERR("interface %s: setting MAC failed (%s)", | |
4462 | iface->name, strerror(error)); | |
4463 | } | |
4464 | } | |
4465 | } | |
4466 | } | |
c1c9c9c4 | 4467 | |
bcd49a45 BP |
4468 | /* Sets the ofport column of 'if_cfg' to 'ofport'. */ |
4469 | static void | |
4470 | iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport) | |
4471 | { | |
4472 | if (if_cfg) { | |
4473 | ovsrec_interface_set_ofport(if_cfg, &ofport, 1); | |
4474 | } | |
4475 | } | |
4476 | ||
43776b8f BP |
4477 | /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'. |
4478 | * | |
4479 | * The value strings in '*shash' are taken directly from values[], not copied, | |
4480 | * so the caller should not modify or free them. */ | |
c1c9c9c4 BP |
4481 | static void |
4482 | shash_from_ovs_idl_map(char **keys, char **values, size_t n, | |
4483 | struct shash *shash) | |
4484 | { | |
4485 | size_t i; | |
4486 | ||
4487 | shash_init(shash); | |
4488 | for (i = 0; i < n; i++) { | |
4489 | shash_add(shash, keys[i], values[i]); | |
4490 | } | |
4491 | } | |
4492 | ||
ea763e0e EJ |
4493 | /* Creates 'keys' and 'values' arrays from 'shash'. |
4494 | * | |
4495 | * Sets 'keys' and 'values' to heap allocated arrays representing the key-value | |
4496 | * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They | |
4497 | * are populated with with strings taken directly from 'shash' and thus have | |
4498 | * the same ownership of the key-value pairs in shash. | |
4499 | */ | |
4500 | static void | |
4501 | shash_to_ovs_idl_map(struct shash *shash, | |
4502 | char ***keys, char ***values, size_t *n) | |
4503 | { | |
4504 | size_t i, count; | |
4505 | char **k, **v; | |
4506 | struct shash_node *sn; | |
4507 | ||
4508 | count = shash_count(shash); | |
4509 | ||
4510 | k = xmalloc(count * sizeof *k); | |
4511 | v = xmalloc(count * sizeof *v); | |
4512 | ||
4513 | i = 0; | |
4514 | SHASH_FOR_EACH(sn, shash) { | |
4515 | k[i] = sn->name; | |
4516 | v[i] = sn->data; | |
4517 | i++; | |
4518 | } | |
4519 | ||
4520 | *n = count; | |
4521 | *keys = k; | |
4522 | *values = v; | |
4523 | } | |
4524 | ||
c1c9c9c4 BP |
4525 | struct iface_delete_queues_cbdata { |
4526 | struct netdev *netdev; | |
44fca7f9 | 4527 | const struct ovsdb_datum *queues; |
c1c9c9c4 BP |
4528 | }; |
4529 | ||
4530 | static bool | |
44fca7f9 | 4531 | queue_ids_include(const struct ovsdb_datum *queues, int64_t target) |
c1c9c9c4 | 4532 | { |
44fca7f9 | 4533 | union ovsdb_atom atom; |
c1c9c9c4 | 4534 | |
44fca7f9 BP |
4535 | atom.integer = target; |
4536 | return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX; | |
c1c9c9c4 BP |
4537 | } |
4538 | ||
4539 | static void | |
4540 | iface_delete_queues(unsigned int queue_id, | |
4541 | const struct shash *details OVS_UNUSED, void *cbdata_) | |
4542 | { | |
4543 | struct iface_delete_queues_cbdata *cbdata = cbdata_; | |
4544 | ||
44fca7f9 | 4545 | if (!queue_ids_include(cbdata->queues, queue_id)) { |
c1c9c9c4 BP |
4546 | netdev_delete_queue(cbdata->netdev, queue_id); |
4547 | } | |
4548 | } | |
4549 | ||
e5ed989d | 4550 | static void |
0b8024eb | 4551 | iface_update_carrier(struct iface *iface) |
e5ed989d | 4552 | { |
0b8024eb | 4553 | bool carrier = iface_get_carrier(iface); |
e5ed989d EJ |
4554 | if (carrier == iface->up) { |
4555 | return; | |
4556 | } | |
4557 | ||
4558 | iface->up = carrier; | |
6aa74308 EJ |
4559 | if (iface->port->lacp) { |
4560 | lacp_slave_carrier_changed(iface->port->lacp, iface); | |
e5ed989d EJ |
4561 | } |
4562 | } | |
4563 | ||
c1c9c9c4 BP |
4564 | static void |
4565 | iface_update_qos(struct iface *iface, const struct ovsrec_qos *qos) | |
4566 | { | |
4567 | if (!qos || qos->type[0] == '\0') { | |
4568 | netdev_set_qos(iface->netdev, NULL, NULL); | |
4569 | } else { | |
4570 | struct iface_delete_queues_cbdata cbdata; | |
4571 | struct shash details; | |
4572 | size_t i; | |
4573 | ||
4574 | /* Configure top-level Qos for 'iface'. */ | |
4575 | shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config, | |
4576 | qos->n_other_config, &details); | |
4577 | netdev_set_qos(iface->netdev, qos->type, &details); | |
4578 | shash_destroy(&details); | |
4579 | ||
4580 | /* Deconfigure queues that were deleted. */ | |
4581 | cbdata.netdev = iface->netdev; | |
44fca7f9 BP |
4582 | cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER, |
4583 | OVSDB_TYPE_UUID); | |
c1c9c9c4 BP |
4584 | netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata); |
4585 | ||
4586 | /* Configure queues for 'iface'. */ | |
4587 | for (i = 0; i < qos->n_queues; i++) { | |
4588 | const struct ovsrec_queue *queue = qos->value_queues[i]; | |
4589 | unsigned int queue_id = qos->key_queues[i]; | |
4590 | ||
4591 | shash_from_ovs_idl_map(queue->key_other_config, | |
4592 | queue->value_other_config, | |
4593 | queue->n_other_config, &details); | |
4594 | netdev_set_queue(iface->netdev, queue_id, &details); | |
4595 | shash_destroy(&details); | |
4596 | } | |
4597 | } | |
4598 | } | |
b31bcf60 EJ |
4599 | |
4600 | static void | |
4601 | iface_update_cfm(struct iface *iface) | |
4602 | { | |
4603 | size_t i; | |
e7934396 | 4604 | struct cfm cfm; |
b31bcf60 EJ |
4605 | uint16_t *remote_mps; |
4606 | struct ovsrec_monitor *mon; | |
a58727fb | 4607 | uint8_t maid[CCM_MAID_LEN]; |
b31bcf60 EJ |
4608 | |
4609 | mon = iface->cfg->monitor; | |
4610 | ||
4611 | if (!mon) { | |
e7934396 | 4612 | ofproto_iface_clear_cfm(iface->port->bridge->ofproto, iface->dp_ifidx); |
b31bcf60 EJ |
4613 | return; |
4614 | } | |
4615 | ||
b31bcf60 EJ |
4616 | if (!cfm_generate_maid(mon->md_name, mon->ma_name, maid)) { |
4617 | VLOG_WARN("interface %s: Failed to generate MAID.", iface->name); | |
4618 | return; | |
4619 | } | |
4620 | ||
e7934396 BP |
4621 | cfm.mpid = mon->mpid; |
4622 | cfm.interval = mon->interval ? *mon->interval : 1000; | |
b31bcf60 | 4623 | |
e7934396 | 4624 | memcpy(cfm.maid, maid, sizeof cfm.maid); |
b31bcf60 EJ |
4625 | |
4626 | remote_mps = xzalloc(mon->n_remote_mps * sizeof *remote_mps); | |
4627 | for(i = 0; i < mon->n_remote_mps; i++) { | |
4628 | remote_mps[i] = mon->remote_mps[i]->mpid; | |
4629 | } | |
b31bcf60 | 4630 | |
e7934396 BP |
4631 | ofproto_iface_set_cfm(iface->port->bridge->ofproto, iface->dp_ifidx, |
4632 | &cfm, remote_mps, mon->n_remote_mps); | |
4633 | free(remote_mps); | |
b31bcf60 | 4634 | } |
0b8024eb BP |
4635 | |
4636 | /* Read carrier or miimon status directly from 'iface''s netdev, according to | |
4637 | * how 'iface''s port is configured. | |
4638 | * | |
4639 | * Returns true if 'iface' is up, false otherwise. */ | |
4640 | static bool | |
4641 | iface_get_carrier(const struct iface *iface) | |
4642 | { | |
4643 | return (iface->port->monitor | |
4644 | ? netdev_get_carrier(iface->netdev) | |
4645 | : netdev_get_miimon(iface->netdev)); | |
4646 | } | |
064af421 BP |
4647 | \f |
4648 | /* Port mirroring. */ | |
4649 | ||
dd0d105c BP |
4650 | static struct mirror * |
4651 | mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid) | |
4652 | { | |
4653 | int i; | |
4654 | ||
4655 | for (i = 0; i < MAX_MIRRORS; i++) { | |
4656 | struct mirror *m = br->mirrors[i]; | |
4657 | if (m && uuid_equals(uuid, &m->uuid)) { | |
4658 | return m; | |
4659 | } | |
4660 | } | |
4661 | return NULL; | |
4662 | } | |
4663 | ||
064af421 | 4664 | static void |
37e7f427 | 4665 | mirror_reconfigure(struct bridge *br) |
064af421 | 4666 | { |
f2d7fd66 | 4667 | unsigned long *rspan_vlans; |
8052fb14 | 4668 | struct port *port; |
37e7f427 | 4669 | int i; |
064af421 | 4670 | |
dd0d105c | 4671 | /* Get rid of deleted mirrors. */ |
064af421 | 4672 | for (i = 0; i < MAX_MIRRORS; i++) { |
dd0d105c BP |
4673 | struct mirror *m = br->mirrors[i]; |
4674 | if (m) { | |
4675 | const struct ovsdb_datum *mc; | |
4676 | union ovsdb_atom atom; | |
4677 | ||
4678 | mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID); | |
4679 | atom.uuid = br->mirrors[i]->uuid; | |
4680 | if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) { | |
4681 | mirror_destroy(m); | |
4682 | } | |
064af421 BP |
4683 | } |
4684 | } | |
4685 | ||
dd0d105c | 4686 | /* Add new mirrors and reconfigure existing ones. */ |
37e7f427 BP |
4687 | for (i = 0; i < br->cfg->n_mirrors; i++) { |
4688 | struct ovsrec_mirror *cfg = br->cfg->mirrors[i]; | |
dd0d105c BP |
4689 | struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid); |
4690 | if (m) { | |
4691 | mirror_reconfigure_one(m, cfg); | |
4692 | } else { | |
4693 | mirror_create(br, cfg); | |
064af421 BP |
4694 | } |
4695 | } | |
4696 | ||
4697 | /* Update port reserved status. */ | |
8052fb14 BP |
4698 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
4699 | port->is_mirror_output_port = false; | |
064af421 BP |
4700 | } |
4701 | for (i = 0; i < MAX_MIRRORS; i++) { | |
4702 | struct mirror *m = br->mirrors[i]; | |
4703 | if (m && m->out_port) { | |
4704 | m->out_port->is_mirror_output_port = true; | |
4705 | } | |
4706 | } | |
f2d7fd66 | 4707 | |
8f30d09a | 4708 | /* Update flooded vlans (for RSPAN). */ |
f2d7fd66 | 4709 | rspan_vlans = NULL; |
37e7f427 | 4710 | if (br->cfg->n_flood_vlans) { |
f2d7fd66 JG |
4711 | rspan_vlans = bitmap_allocate(4096); |
4712 | ||
37e7f427 BP |
4713 | for (i = 0; i < br->cfg->n_flood_vlans; i++) { |
4714 | int64_t vlan = br->cfg->flood_vlans[i]; | |
4715 | if (vlan >= 0 && vlan < 4096) { | |
f2d7fd66 | 4716 | bitmap_set1(rspan_vlans, vlan); |
37e7f427 | 4717 | VLOG_INFO("bridge %s: disabling learning on vlan %"PRId64, |
42061b2a | 4718 | br->name, vlan); |
f2d7fd66 | 4719 | } else { |
37e7f427 BP |
4720 | VLOG_ERR("bridge %s: invalid value %"PRId64 "for flood VLAN", |
4721 | br->name, vlan); | |
f2d7fd66 JG |
4722 | } |
4723 | } | |
4724 | } | |
8f30d09a | 4725 | if (mac_learning_set_flood_vlans(br->ml, rspan_vlans)) { |
f2d7fd66 | 4726 | bridge_flush(br); |
d5346278 | 4727 | mac_learning_flush(br->ml); |
f2d7fd66 | 4728 | } |
064af421 BP |
4729 | } |
4730 | ||
dd0d105c BP |
4731 | static void |
4732 | mirror_create(struct bridge *br, struct ovsrec_mirror *cfg) | |
064af421 BP |
4733 | { |
4734 | struct mirror *m; | |
4735 | size_t i; | |
4736 | ||
4737 | for (i = 0; ; i++) { | |
4738 | if (i >= MAX_MIRRORS) { | |
4739 | VLOG_WARN("bridge %s: maximum of %d port mirrors reached, " | |
dd0d105c BP |
4740 | "cannot create %s", br->name, MAX_MIRRORS, cfg->name); |
4741 | return; | |
064af421 BP |
4742 | } |
4743 | if (!br->mirrors[i]) { | |
4744 | break; | |
4745 | } | |
4746 | } | |
4747 | ||
dd0d105c | 4748 | VLOG_INFO("created port mirror %s on bridge %s", cfg->name, br->name); |
064af421 | 4749 | bridge_flush(br); |
d5346278 | 4750 | mac_learning_flush(br->ml); |
064af421 | 4751 | |
ec6fde61 | 4752 | br->mirrors[i] = m = xzalloc(sizeof *m); |
064af421 BP |
4753 | m->bridge = br; |
4754 | m->idx = i; | |
dd0d105c | 4755 | m->name = xstrdup(cfg->name); |
b3c01ed3 BP |
4756 | sset_init(&m->src_ports); |
4757 | sset_init(&m->dst_ports); | |
064af421 BP |
4758 | m->vlans = NULL; |
4759 | m->n_vlans = 0; | |
4760 | m->out_vlan = -1; | |
4761 | m->out_port = NULL; | |
37e7f427 | 4762 | |
dd0d105c | 4763 | mirror_reconfigure_one(m, cfg); |
064af421 BP |
4764 | } |
4765 | ||
4766 | static void | |
4767 | mirror_destroy(struct mirror *m) | |
4768 | { | |
4769 | if (m) { | |
4770 | struct bridge *br = m->bridge; | |
8052fb14 | 4771 | struct port *port; |
064af421 | 4772 | |
8052fb14 BP |
4773 | HMAP_FOR_EACH (port, hmap_node, &br->ports) { |
4774 | port->src_mirrors &= ~(MIRROR_MASK_C(1) << m->idx); | |
4775 | port->dst_mirrors &= ~(MIRROR_MASK_C(1) << m->idx); | |
064af421 BP |
4776 | } |
4777 | ||
b3c01ed3 BP |
4778 | sset_destroy(&m->src_ports); |
4779 | sset_destroy(&m->dst_ports); | |
064af421 BP |
4780 | free(m->vlans); |
4781 | ||
4782 | m->bridge->mirrors[m->idx] = NULL; | |
786880a5 | 4783 | free(m->name); |
064af421 BP |
4784 | free(m); |
4785 | ||
4786 | bridge_flush(br); | |
d5346278 | 4787 | mac_learning_flush(br->ml); |
064af421 BP |
4788 | } |
4789 | } | |
4790 | ||
4791 | static void | |
37e7f427 | 4792 | mirror_collect_ports(struct mirror *m, struct ovsrec_port **ports, int n_ports, |
b3c01ed3 | 4793 | struct sset *names) |
064af421 | 4794 | { |
064af421 BP |
4795 | size_t i; |
4796 | ||
37e7f427 BP |
4797 | for (i = 0; i < n_ports; i++) { |
4798 | const char *name = ports[i]->name; | |
064af421 | 4799 | if (port_lookup(m->bridge, name)) { |
b3c01ed3 | 4800 | sset_add(names, name); |
064af421 | 4801 | } else { |
37e7f427 BP |
4802 | VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent " |
4803 | "port %s", m->bridge->name, m->name, name); | |
064af421 BP |
4804 | } |
4805 | } | |
064af421 BP |
4806 | } |
4807 | ||
4808 | static size_t | |
37e7f427 BP |
4809 | mirror_collect_vlans(struct mirror *m, const struct ovsrec_mirror *cfg, |
4810 | int **vlans) | |
064af421 | 4811 | { |
37e7f427 BP |
4812 | size_t n_vlans; |
4813 | size_t i; | |
064af421 | 4814 | |
0b523ea7 | 4815 | *vlans = xmalloc(sizeof **vlans * cfg->n_select_vlan); |
064af421 | 4816 | n_vlans = 0; |
37e7f427 BP |
4817 | for (i = 0; i < cfg->n_select_vlan; i++) { |
4818 | int64_t vlan = cfg->select_vlan[i]; | |
4819 | if (vlan < 0 || vlan > 4095) { | |
4820 | VLOG_WARN("bridge %s: mirror %s selects invalid VLAN %"PRId64, | |
4821 | m->bridge->name, m->name, vlan); | |
064af421 BP |
4822 | } else { |
4823 | (*vlans)[n_vlans++] = vlan; | |
4824 | } | |
4825 | } | |
4826 | return n_vlans; | |
4827 | } | |
4828 | ||
4829 | static bool | |
4830 | vlan_is_mirrored(const struct mirror *m, int vlan) | |
4831 | { | |
4832 | size_t i; | |
4833 | ||
4834 | for (i = 0; i < m->n_vlans; i++) { | |
4835 | if (m->vlans[i] == vlan) { | |
4836 | return true; | |
4837 | } | |
4838 | } | |
4839 | return false; | |
4840 | } | |
4841 | ||
4842 | static bool | |
4843 | port_trunks_any_mirrored_vlan(const struct mirror *m, const struct port *p) | |
4844 | { | |
4845 | size_t i; | |
4846 | ||
4847 | for (i = 0; i < m->n_vlans; i++) { | |
4848 | if (port_trunks_vlan(p, m->vlans[i])) { | |
4849 | return true; | |
4850 | } | |
4851 | } | |
4852 | return false; | |
4853 | } | |
4854 | ||
4855 | static void | |
37e7f427 | 4856 | mirror_reconfigure_one(struct mirror *m, struct ovsrec_mirror *cfg) |
064af421 | 4857 | { |
b3c01ed3 | 4858 | struct sset src_ports, dst_ports; |
064af421 | 4859 | mirror_mask_t mirror_bit; |
064af421 | 4860 | struct port *out_port; |
8052fb14 | 4861 | struct port *port; |
064af421 BP |
4862 | int out_vlan; |
4863 | size_t n_vlans; | |
4864 | int *vlans; | |
064af421 | 4865 | |
dd0d105c BP |
4866 | /* Set name. */ |
4867 | if (strcmp(cfg->name, m->name)) { | |
4868 | free(m->name); | |
4869 | m->name = xstrdup(cfg->name); | |
4870 | } | |
4871 | ||
064af421 | 4872 | /* Get output port. */ |
37e7f427 BP |
4873 | if (cfg->output_port) { |
4874 | out_port = port_lookup(m->bridge, cfg->output_port->name); | |
064af421 | 4875 | if (!out_port) { |
37e7f427 BP |
4876 | VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge", |
4877 | m->bridge->name, m->name); | |
064af421 | 4878 | mirror_destroy(m); |
064af421 BP |
4879 | return; |
4880 | } | |
4881 | out_vlan = -1; | |
4882 | ||
37e7f427 BP |
4883 | if (cfg->output_vlan) { |
4884 | VLOG_ERR("bridge %s: mirror %s specifies both output port and " | |
4885 | "output vlan; ignoring output vlan", | |
4886 | m->bridge->name, m->name); | |
064af421 | 4887 | } |
37e7f427 | 4888 | } else if (cfg->output_vlan) { |
064af421 | 4889 | out_port = NULL; |
37e7f427 | 4890 | out_vlan = *cfg->output_vlan; |
064af421 | 4891 | } else { |
37e7f427 BP |
4892 | VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring", |
4893 | m->bridge->name, m->name); | |
064af421 | 4894 | mirror_destroy(m); |
064af421 BP |
4895 | return; |
4896 | } | |
4897 | ||
b3c01ed3 BP |
4898 | sset_init(&src_ports); |
4899 | sset_init(&dst_ports); | |
939ff267 | 4900 | if (cfg->select_all) { |
8052fb14 | 4901 | HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) { |
b3c01ed3 BP |
4902 | sset_add(&src_ports, port->name); |
4903 | sset_add(&dst_ports, port->name); | |
939ff267 BP |
4904 | } |
4905 | vlans = NULL; | |
4906 | n_vlans = 0; | |
4907 | } else { | |
4908 | /* Get ports, and drop duplicates and ports that don't exist. */ | |
4909 | mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port, | |
4910 | &src_ports); | |
4911 | mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port, | |
4912 | &dst_ports); | |
064af421 | 4913 | |
939ff267 BP |
4914 | /* Get all the vlans, and drop duplicate and invalid vlans. */ |
4915 | n_vlans = mirror_collect_vlans(m, cfg, &vlans); | |
37e7f427 | 4916 | } |
064af421 BP |
4917 | |
4918 | /* Update mirror data. */ | |
b3c01ed3 BP |
4919 | if (!sset_equals(&m->src_ports, &src_ports) |
4920 | || !sset_equals(&m->dst_ports, &dst_ports) | |
064af421 BP |
4921 | || m->n_vlans != n_vlans |
4922 | || memcmp(m->vlans, vlans, sizeof *vlans * n_vlans) | |
4923 | || m->out_port != out_port | |
4924 | || m->out_vlan != out_vlan) { | |
4925 | bridge_flush(m->bridge); | |
d5346278 | 4926 | mac_learning_flush(m->bridge->ml); |
064af421 | 4927 | } |
b3c01ed3 BP |
4928 | sset_swap(&m->src_ports, &src_ports); |
4929 | sset_swap(&m->dst_ports, &dst_ports); | |
064af421 BP |
4930 | free(m->vlans); |
4931 | m->vlans = vlans; | |
4932 | m->n_vlans = n_vlans; | |
4933 | m->out_port = out_port; | |
4934 | m->out_vlan = out_vlan; | |
4935 | ||
064af421 BP |
4936 | /* Update ports. */ |
4937 | mirror_bit = MIRROR_MASK_C(1) << m->idx; | |
8052fb14 | 4938 | HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) { |
b3c01ed3 | 4939 | if (sset_contains(&m->src_ports, port->name) |
064af421 BP |
4940 | || (m->n_vlans |
4941 | && (!port->vlan | |
4942 | ? port_trunks_any_mirrored_vlan(m, port) | |
4943 | : vlan_is_mirrored(m, port->vlan)))) { | |
4944 | port->src_mirrors |= mirror_bit; | |
4945 | } else { | |
4946 | port->src_mirrors &= ~mirror_bit; | |
4947 | } | |
4948 | ||
b3c01ed3 | 4949 | if (sset_contains(&m->dst_ports, port->name)) { |
064af421 BP |
4950 | port->dst_mirrors |= mirror_bit; |
4951 | } else { | |
4952 | port->dst_mirrors &= ~mirror_bit; | |
4953 | } | |
4954 | } | |
4955 | ||
4956 | /* Clean up. */ | |
b3c01ed3 BP |
4957 | sset_destroy(&src_ports); |
4958 | sset_destroy(&dst_ports); | |
064af421 | 4959 | } |