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275707c3 1/* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
c93b1d6a 2 *
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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 *
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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.
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14 */
15
16#include <config.h>
17#include "bridge.h"
064af421 18#include <errno.h>
064af421 19#include <inttypes.h>
064af421 20#include <stdlib.h>
ccc09689 21#include "bfd.h"
064af421 22#include "bitmap.h"
f620b43a 23#include "bond.h"
b31bcf60 24#include "cfm.h"
064af421 25#include "coverage.h"
a7ff9bd7 26#include "daemon.h"
064af421 27#include "dirs.h"
064af421 28#include "dynamic-string.h"
064af421 29#include "hash.h"
d9a8717a 30#include "hmap.h"
f145afdc 31#include "hmapx.h"
cd11000b 32#include "jsonrpc.h"
6aa74308 33#include "lacp.h"
064af421 34#include "list.h"
e764773c 35#include "mac-learning.h"
254750ce 36#include "meta-flow.h"
064af421 37#include "netdev.h"
064af421 38#include "ofp-print.h"
7beaa082 39#include "ofp-util.h"
064af421 40#include "ofpbuf.h"
8cd4882f 41#include "ofproto/ofproto.h"
064af421 42#include "poll-loop.h"
76343538 43#include "sha1.h"
6c88d577 44#include "shash.h"
79f1cbe9 45#include "smap.h"
064af421 46#include "socket-util.h"
5bd31620 47#include "stream.h"
fe55ad15 48#include "stream-ssl.h"
b3c01ed3 49#include "sset.h"
ce887677 50#include "system-stats.h"
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51#include "timeval.h"
52#include "util.h"
da285df4 53#include "unixctl.h"
52a90c29 54#include "vlandev.h"
eaa67ba8 55#include "lib/vswitch-idl.h"
064af421 56#include "xenserver.h"
5136ce49 57#include "vlog.h"
72b06300 58#include "sflow_api.h"
0fb7b915 59#include "vlan-bitmap.h"
064af421 60
d98e6007 61VLOG_DEFINE_THIS_MODULE(bridge);
064af421 62
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63COVERAGE_DEFINE(bridge_reconfigure);
64
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65/* Configuration of an uninstantiated iface. */
66struct if_cfg {
67 struct hmap_node hmap_node; /* Node in bridge's if_cfg_todo. */
68 const struct ovsrec_interface *cfg; /* Interface record. */
69 const struct ovsrec_port *parent; /* Parent port record. */
81816a5f 70 int64_t ofport; /* Requested OpenFlow port number. */
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71};
72
73/* OpenFlow port slated for removal from ofproto. */
74struct ofpp_garbage {
75 struct list list_node; /* Node in bridge's ofpp_garbage. */
76 uint16_t ofp_port; /* Port to be deleted. */
77};
78
064af421 79struct iface {
0c6aea3f 80 /* These members are always valid. */
83db7968 81 struct list port_elem; /* Element in struct port's "ifaces" list. */
ebea37cc 82 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
064af421 83 struct port *port; /* Containing port. */
064af421 84 char *name; /* Host network device name. */
064af421 85
0c6aea3f 86 /* These members are valid only after bridge_reconfigure() causes them to
1e0b752d 87 * be initialized. */
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88 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
89 int ofp_port; /* OpenFlow port number, -1 if unknown. */
0c6aea3f 90 struct netdev *netdev; /* Network device. */
6cefe1da 91 const char *type; /* Usually same as cfg->type. */
76343538 92 const struct ovsrec_interface *cfg;
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93};
94
064af421 95struct mirror {
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96 struct uuid uuid; /* UUID of this "mirror" record in database. */
97 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
064af421 98 struct bridge *bridge;
064af421 99 char *name;
9d24de3b 100 const struct ovsrec_mirror *cfg;
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101};
102
064af421 103struct port {
8052fb14 104 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
6e492d81 105 struct bridge *bridge;
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106 char *name;
107
1e0b752d 108 const struct ovsrec_port *cfg;
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109
110 /* An ordinary bridge port has 1 interface.
111 * A bridge port for bonding has at least 2 interfaces. */
83db7968 112 struct list ifaces; /* List of "struct iface"s. */
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113};
114
064af421 115struct bridge {
764072fd 116 struct hmap_node node; /* In 'all_bridges'. */
064af421 117 char *name; /* User-specified arbitrary name. */
66da9bef 118 char *type; /* Datapath type. */
abe457eb 119 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
064af421 120 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
1e0b752d 121 const struct ovsrec_bridge *cfg;
064af421 122
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123 /* OpenFlow switch processing. */
124 struct ofproto *ofproto; /* OpenFlow switch. */
125
064af421 126 /* Bridge ports. */
8052fb14 127 struct hmap ports; /* "struct port"s indexed by name. */
892815f5 128 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
ebea37cc 129 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
064af421 130
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131 struct list ofpp_garbage; /* "struct ofpp_garbage" slated for removal. */
132 struct hmap if_cfg_todo; /* "struct if_cfg"s slated for creation.
133 Indexed on 'cfg->name'. */
134
064af421 135 /* Port mirroring. */
fa066f01 136 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
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137
138 /* Synthetic local port if necessary. */
139 struct ovsrec_port synth_local_port;
140 struct ovsrec_interface synth_local_iface;
141 struct ovsrec_interface *synth_local_ifacep;
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142};
143
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144/* All bridges, indexed by name. */
145static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
064af421 146
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147/* OVSDB IDL used to obtain configuration. */
148static struct ovsdb_idl *idl;
149
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150/* We want to complete daemonization, fully detaching from our parent process,
151 * only after we have completed our initial configuration, committed our state
152 * to the database, and received confirmation back from the database server
153 * that it applied the commit. This allows our parent process to know that,
154 * post-detach, ephemeral fields such as datapath-id and ofport are very likely
155 * to have already been filled in. (It is only "very likely" rather than
156 * certain because there is always a slim possibility that the transaction will
157 * fail or that some other client has added new bridges, ports, etc. while
158 * ovs-vswitchd was configuring using an old configuration.)
159 *
160 * We only need to do this once for our initial configuration at startup, so
161 * 'initial_config_done' tracks whether we've already done it. While we are
162 * waiting for a response to our commit, 'daemonize_txn' tracks the transaction
163 * itself and is otherwise NULL. */
164static bool initial_config_done;
165static struct ovsdb_idl_txn *daemonize_txn;
166
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167/* Most recently processed IDL sequence number. */
168static unsigned int idl_seqno;
169
35a22d8c 170/* Each time this timer expires, the bridge fetches interface and mirror
cd0cd65f 171 * statistics and pushes them into the database. */
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172#define IFACE_STATS_INTERVAL (5 * 1000) /* In milliseconds. */
173static long long int iface_stats_timer = LLONG_MIN;
018f1525 174
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175/* In some datapaths, creating and destroying OpenFlow ports can be extremely
176 * expensive. This can cause bridge_reconfigure() to take a long time during
177 * which no other work can be done. To deal with this problem, we limit port
178 * adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
179 * call to bridge_reconfigure(). If there is more work to do after the limit
180 * is reached, 'need_reconfigure', is flagged and it's done on the next loop.
181 * This allows the rest of the code to catch up on important things like
182 * forwarding packets. */
183#define OFP_PORT_ACTION_WINDOW 10
bae7208e 184static bool reconfiguring = false;
c7e7bb21 185
66da9bef 186static void add_del_bridges(const struct ovsrec_open_vswitch *);
bae7208e 187static void bridge_update_ofprotos(void);
66da9bef 188static void bridge_create(const struct ovsrec_bridge *);
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189static void bridge_destroy(struct bridge *);
190static struct bridge *bridge_lookup(const char *name);
8ca79daa 191static unixctl_cb_func bridge_unixctl_dump_flows;
fa05809b 192static unixctl_cb_func bridge_unixctl_reconnect;
1a048029 193static size_t bridge_get_controllers(const struct bridge *br,
76ce9432 194 struct ovsrec_controller ***controllersp);
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195static void bridge_add_del_ports(struct bridge *,
196 const unsigned long int *splinter_vlans);
892815f5 197static void bridge_refresh_ofp_port(struct bridge *);
6f90b8f4 198static void bridge_configure_datapath_id(struct bridge *);
084f5290 199static void bridge_configure_flow_eviction_threshold(struct bridge *);
6f90b8f4 200static void bridge_configure_netflow(struct bridge *);
8402c74b 201static void bridge_configure_forward_bpdu(struct bridge *);
c4069512 202static void bridge_configure_mac_table(struct bridge *);
6f90b8f4 203static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
29089a54 204static void bridge_configure_ipfix(struct bridge *);
21f7563c 205static void bridge_configure_stp(struct bridge *);
254750ce 206static void bridge_configure_tables(struct bridge *);
8b6ff729 207static void bridge_configure_dp_desc(struct bridge *);
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208static void bridge_configure_remotes(struct bridge *,
209 const struct sockaddr_in *managers,
210 size_t n_managers);
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211static void bridge_pick_local_hw_addr(struct bridge *,
212 uint8_t ea[ETH_ADDR_LEN],
07c318f4 213 struct iface **hw_addr_iface);
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214static uint64_t bridge_pick_datapath_id(struct bridge *,
215 const uint8_t bridge_ea[ETH_ADDR_LEN],
07c318f4 216 struct iface *hw_addr_iface);
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217static void bridge_queue_if_cfg(struct bridge *,
218 const struct ovsrec_interface *,
219 const struct ovsrec_port *);
064af421 220static uint64_t dpid_from_hash(const void *, size_t nbytes);
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221static bool bridge_has_bond_fake_iface(const struct bridge *,
222 const char *name);
223static bool port_is_bond_fake_iface(const struct port *);
064af421 224
e8fe3026 225static unixctl_cb_func qos_unixctl_show;
8c4c1387 226
66da9bef 227static struct port *port_create(struct bridge *, const struct ovsrec_port *);
66da9bef 228static void port_del_ifaces(struct port *);
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229static void port_destroy(struct port *);
230static struct port *port_lookup(const struct bridge *, const char *name);
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231static void port_configure(struct port *);
232static struct lacp_settings *port_configure_lacp(struct port *,
233 struct lacp_settings *);
df53d41c 234static void port_configure_bond(struct port *, struct bond_settings *);
06b592bc 235static bool port_is_synthetic(const struct port *);
fa066f01 236
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237static void reconfigure_system_stats(const struct ovsrec_open_vswitch *);
238static void run_system_stats(void);
239
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240static void bridge_configure_mirrors(struct bridge *);
241static struct mirror *mirror_create(struct bridge *,
242 const struct ovsrec_mirror *);
064af421 243static void mirror_destroy(struct mirror *);
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244static bool mirror_configure(struct mirror *);
245static void mirror_refresh_stats(struct mirror *);
064af421 246
fa066f01 247static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
01546f5d 248static bool iface_create(struct bridge *, struct if_cfg *, int ofp_port);
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249static bool iface_is_internal(const struct ovsrec_interface *iface,
250 const struct ovsrec_bridge *br);
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251static const char *iface_get_type(const struct ovsrec_interface *,
252 const struct ovsrec_bridge *);
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253static void iface_destroy(struct iface *);
254static struct iface *iface_lookup(const struct bridge *, const char *name);
e8fe3026 255static struct iface *iface_find(const char *name);
bae7208e 256static struct if_cfg *if_cfg_lookup(const struct bridge *, const char *name);
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257static struct iface *iface_from_ofp_port(const struct bridge *,
258 uint16_t ofp_port);
52df17e7 259static void iface_set_mac(struct iface *);
bcd49a45 260static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
3fc5a86a 261static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
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262static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
263static void iface_configure_cfm(struct iface *);
8f3fe844 264static void iface_refresh_cfm_stats(struct iface *);
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265static void iface_refresh_stats(struct iface *);
266static void iface_refresh_status(struct iface *);
cfea354b 267static bool iface_is_synthetic(const struct iface *);
558e2cc5 268static int64_t iface_pick_ofport(const struct ovsrec_interface *);
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269
270/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
271 *
272 * This is deprecated. It is only for compatibility with broken device drivers
273 * in old versions of Linux that do not properly support VLANs when VLAN
274 * devices are not used. When broken device drivers are no longer in
275 * widespread use, we will delete these interfaces. */
276
277/* True if VLAN splinters are enabled on any interface, false otherwise.*/
278static bool vlan_splinters_enabled_anywhere;
279
280static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
281static unsigned long int *collect_splinter_vlans(
282 const struct ovsrec_open_vswitch *);
283static void configure_splinter_port(struct port *);
284static void add_vlan_splinter_ports(struct bridge *,
285 const unsigned long int *splinter_vlans,
286 struct shash *ports);
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287
288static void
289bridge_init_ofproto(const struct ovsrec_open_vswitch *cfg)
290{
291 struct shash iface_hints;
292 static bool initialized = false;
293 int i;
294
295 if (initialized) {
296 return;
297 }
298
299 shash_init(&iface_hints);
300
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301 if (cfg) {
302 for (i = 0; i < cfg->n_bridges; i++) {
303 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
304 int j;
305
306 for (j = 0; j < br_cfg->n_ports; j++) {
307 struct ovsrec_port *port_cfg = br_cfg->ports[j];
308 int k;
309
310 for (k = 0; k < port_cfg->n_interfaces; k++) {
311 struct ovsrec_interface *if_cfg = port_cfg->interfaces[k];
312 struct iface_hint *iface_hint;
313
314 iface_hint = xmalloc(sizeof *iface_hint);
315 iface_hint->br_name = br_cfg->name;
316 iface_hint->br_type = br_cfg->datapath_type;
558e2cc5 317 iface_hint->ofp_port = iface_pick_ofport(if_cfg);
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318
319 shash_add(&iface_hints, if_cfg->name, iface_hint);
320 }
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321 }
322 }
323 }
324
325 ofproto_init(&iface_hints);
326
327 shash_destroy_free_data(&iface_hints);
328 initialized = true;
329}
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330\f
331/* Public functions. */
332
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333/* Initializes the bridge module, configuring it to obtain its configuration
334 * from an OVSDB server accessed over 'remote', which should be a string in a
335 * form acceptable to ovsdb_idl_create(). */
064af421 336void
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337bridge_init(const char *remote)
338{
339 /* Create connection to database. */
fba6bd1d 340 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true, true);
854a94d9 341 idl_seqno = ovsdb_idl_get_seqno(idl);
06b6d651 342 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
8cdec725 343 ovsdb_idl_verify_write_only(idl);
c5187f17 344
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345 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
346 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
e85bbd75 347 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
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348 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
349 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
350 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
351 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
e85bbd75 352
62f3aaed 353 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
21f7563c 354 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
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355 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
356
21f7563c 357 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
80740385 358 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
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359 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
360 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
361
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362 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
363 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
364 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
365 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
65c3058c 366 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
df867eda 367 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mac_in_use);
62f3aaed 368 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
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369 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
370 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
62f3aaed 371 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
b4117094 372 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
b9380396 373 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
1de11730 374 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
3967a833 375 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
4104aaf1 376 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
ccc09689 377 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_bfd_status);
b4117094 378 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
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379 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
380
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381 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
382 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
383 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
384 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
385
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386 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
387
388 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
389
390 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
9d24de3b 391 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
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392
393 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
62f3aaed 394 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
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395 ovsdb_idl_omit(idl, &ovsrec_ipfix_col_external_ids);
396 ovsdb_idl_omit(idl, &ovsrec_flow_sample_collector_set_col_external_ids);
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397
398 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
399 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
400 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
401 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
402 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
403
404 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
405
c5187f17 406 /* Register unixctl commands. */
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407 unixctl_command_register("qos/show", "interface", 1, 1,
408 qos_unixctl_show, NULL);
409 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
7ff2009a 410 bridge_unixctl_dump_flows, NULL);
0e15264f 411 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
7ff2009a 412 bridge_unixctl_reconnect, NULL);
5827ce14 413 lacp_init();
c5187f17 414 bond_init();
9ac3fce4 415 cfm_init();
fe4a02e4 416 stp_init();
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417}
418
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419void
420bridge_exit(void)
421{
422 struct bridge *br, *next_br;
423
764072fd 424 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
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425 bridge_destroy(br);
426 }
427 ovsdb_idl_destroy(idl);
428}
429
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430/* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
431 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
432 * responsible for freeing '*managersp' (with free()).
433 *
434 * You may be asking yourself "why does ovs-vswitchd care?", because
435 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
436 * should not be and in fact is not directly involved in that. But
437 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
438 * it has to tell in-band control where the managers are to enable that.
94db5407 439 * (Thus, only managers connected in-band are collected.)
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440 */
441static void
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442collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
443 struct sockaddr_in **managersp, size_t *n_managersp)
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444{
445 struct sockaddr_in *managers = NULL;
446 size_t n_managers = 0;
b3c01ed3 447 struct sset targets;
94db5407
BP
448 size_t i;
449
289df16d
AE
450 /* Collect all of the potential targets from the "targets" columns of the
451 * rows pointed to by "manager_options", excluding any that are
452 * out-of-band. */
b3c01ed3 453 sset_init(&targets);
94db5407
BP
454 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
455 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
456
457 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
b3c01ed3 458 sset_find_and_delete(&targets, m->target);
94db5407 459 } else {
b3c01ed3 460 sset_add(&targets, m->target);
94db5407
BP
461 }
462 }
cd11000b 463
94db5407 464 /* Now extract the targets' IP addresses. */
b3c01ed3
BP
465 if (!sset_is_empty(&targets)) {
466 const char *target;
cd11000b 467
b3c01ed3
BP
468 managers = xmalloc(sset_count(&targets) * sizeof *managers);
469 SSET_FOR_EACH (target, &targets) {
94db5407 470 struct sockaddr_in *sin = &managers[n_managers];
cd11000b 471
ac4c900d
AA
472 if (stream_parse_target_with_default_ports(target,
473 JSONRPC_TCP_PORT,
474 JSONRPC_SSL_PORT,
475 sin)) {
cd11000b
BP
476 n_managers++;
477 }
478 }
479 }
b3c01ed3 480 sset_destroy(&targets);
cd11000b
BP
481
482 *managersp = managers;
483 *n_managersp = n_managers;
484}
485
c5187f17 486static void
76343538 487bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
064af421 488{
52a90c29 489 unsigned long int *splinter_vlans;
bae7208e 490 struct bridge *br;
064af421
BP
491
492 COVERAGE_INC(bridge_reconfigure);
493
cb22974d 494 ovs_assert(!reconfiguring);
bae7208e 495 reconfiguring = true;
c7e7bb21 496
bae7208e
EJ
497 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
498 * to 'ovs_cfg' while update the "if_cfg_queue", with only very minimal
499 * configuration otherwise.
66da9bef 500 *
bae7208e
EJ
501 * This is mostly an update to bridge data structures. Nothing is pushed
502 * down to ofproto or lower layers. */
66da9bef 503 add_del_bridges(ovs_cfg);
52a90c29 504 splinter_vlans = collect_splinter_vlans(ovs_cfg);
764072fd 505 HMAP_FOR_EACH (br, node, &all_bridges) {
52a90c29 506 bridge_add_del_ports(br, splinter_vlans);
76343538 507 }
52a90c29 508 free(splinter_vlans);
064af421 509
bae7208e
EJ
510 /* Delete datapaths that are no longer configured, and create ones which
511 * don't exist but should. */
512 bridge_update_ofprotos();
513
514 /* Make sure each "struct iface" has a correct ofp_port in its ofproto. */
764072fd 515 HMAP_FOR_EACH (br, node, &all_bridges) {
bae7208e
EJ
516 bridge_refresh_ofp_port(br);
517 }
518
519 /* Clear database records for "if_cfg"s which haven't been instantiated. */
520 HMAP_FOR_EACH (br, node, &all_bridges) {
521 struct if_cfg *if_cfg;
522
523 HMAP_FOR_EACH (if_cfg, hmap_node, &br->if_cfg_todo) {
524 iface_clear_db_record(if_cfg->cfg);
76343538 525 }
064af421 526 }
35a22d8c
BP
527
528 reconfigure_system_stats(ovs_cfg);
bae7208e 529}
064af421 530
bae7208e
EJ
531static bool
532bridge_reconfigure_ofp(void)
533{
534 long long int deadline;
535 struct bridge *br;
536
537 time_refresh();
538 deadline = time_msec() + OFP_PORT_ACTION_WINDOW;
539
540 /* The kernel will reject any attempt to add a given port to a datapath if
541 * that port already belongs to a different datapath, so we must do all
542 * port deletions before any port additions. */
543 HMAP_FOR_EACH (br, node, &all_bridges) {
544 struct ofpp_garbage *garbage, *next;
545
546 LIST_FOR_EACH_SAFE (garbage, next, list_node, &br->ofpp_garbage) {
6b803ddc
EJ
547 /* It's a bit dangerous to call bridge_run_fast() here as ofproto's
548 * internal datastructures may not be consistent. Eventually, when
549 * port additions and deletions are cheaper, these calls should be
550 * removed. */
551 bridge_run_fast();
bae7208e
EJ
552 ofproto_port_del(br->ofproto, garbage->ofp_port);
553 list_remove(&garbage->list_node);
554 free(garbage);
555
556 time_refresh();
557 if (time_msec() >= deadline) {
558 return false;
e56365a5 559 }
6b803ddc 560 bridge_run_fast();
064af421
BP
561 }
562 }
bae7208e 563
e8192d80 564 HMAP_FOR_EACH (br, node, &all_bridges) {
bae7208e
EJ
565 struct if_cfg *if_cfg, *next;
566
567 HMAP_FOR_EACH_SAFE (if_cfg, next, hmap_node, &br->if_cfg_todo) {
568 iface_create(br, if_cfg, -1);
569 time_refresh();
570 if (time_msec() >= deadline) {
571 return false;
572 }
573 }
064af421 574 }
064af421 575
bae7208e
EJ
576 return true;
577}
578
579static bool
580bridge_reconfigure_continue(const struct ovsrec_open_vswitch *ovs_cfg)
581{
582 struct sockaddr_in *managers;
583 int sflow_bridge_number;
584 size_t n_managers;
585 struct bridge *br;
586 bool done;
587
cb22974d 588 ovs_assert(reconfiguring);
bae7208e
EJ
589 done = bridge_reconfigure_ofp();
590
66da9bef
BP
591 /* Complete the configuration. */
592 sflow_bridge_number = 0;
593 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
764072fd 594 HMAP_FOR_EACH (br, node, &all_bridges) {
8052fb14 595 struct port *port;
064af421 596
f145afdc
BP
597 /* We need the datapath ID early to allow LACP ports to use it as the
598 * default system ID. */
599 bridge_configure_datapath_id(br);
600
8052fb14 601 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
83db7968 602 struct iface *iface;
52df17e7 603
fa066f01 604 port_configure(port);
c1c9c9c4 605
48e1b7fb 606 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
66da9bef
BP
607 iface_configure_cfm(iface);
608 iface_configure_qos(iface, port->cfg->qos);
7ae79235 609 iface_set_mac(iface);
ccc09689
EJ
610 ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
611 &iface->cfg->bfd);
064af421
BP
612 }
613 }
fa066f01 614 bridge_configure_mirrors(br);
084f5290 615 bridge_configure_flow_eviction_threshold(br);
8402c74b 616 bridge_configure_forward_bpdu(br);
c4069512 617 bridge_configure_mac_table(br);
fa066f01 618 bridge_configure_remotes(br, managers, n_managers);
66da9bef
BP
619 bridge_configure_netflow(br);
620 bridge_configure_sflow(br, &sflow_bridge_number);
29089a54 621 bridge_configure_ipfix(br);
21f7563c 622 bridge_configure_stp(br);
254750ce 623 bridge_configure_tables(br);
8b6ff729 624 bridge_configure_dp_desc(br);
064af421 625 }
66da9bef 626 free(managers);
064af421 627
bae7208e 628 return done;
66da9bef 629}
064af421 630
bae7208e
EJ
631/* Delete ofprotos which aren't configured or have the wrong type. Create
632 * ofprotos which don't exist but need to. */
66da9bef 633static void
bae7208e 634bridge_update_ofprotos(void)
66da9bef 635{
bae7208e 636 struct bridge *br, *next;
f79e673f
BP
637 struct sset names;
638 struct sset types;
66da9bef 639 const char *type;
6c88d577 640
bae7208e 641 /* Delete ofprotos with no bridge or with the wrong type. */
f79e673f
BP
642 sset_init(&names);
643 sset_init(&types);
644 ofproto_enumerate_types(&types);
645 SSET_FOR_EACH (type, &types) {
66da9bef 646 const char *name;
3a6ccc8c 647
f79e673f
BP
648 ofproto_enumerate_names(type, &names);
649 SSET_FOR_EACH (name, &names) {
bae7208e 650 br = bridge_lookup(name);
66da9bef 651 if (!br || strcmp(type, br->type)) {
f79e673f 652 ofproto_delete(name, type);
3a6ccc8c 653 }
b31bcf60
EJ
654 }
655 }
f79e673f
BP
656 sset_destroy(&names);
657 sset_destroy(&types);
76343538 658
bae7208e
EJ
659 /* Add ofprotos for bridges which don't have one yet. */
660 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
661 struct bridge *br2;
662 int error;
663
664 if (br->ofproto) {
665 continue;
666 }
667
668 /* Remove ports from any datapath with the same name as 'br'. If we
669 * don't do this, creating 'br''s ofproto will fail because a port with
670 * the same name as its local port already exists. */
671 HMAP_FOR_EACH (br2, node, &all_bridges) {
672 struct ofproto_port ofproto_port;
673
674 if (!br2->ofproto) {
675 continue;
676 }
677
678 if (!ofproto_port_query_by_name(br2->ofproto, br->name,
679 &ofproto_port)) {
680 error = ofproto_port_del(br2->ofproto, ofproto_port.ofp_port);
681 if (error) {
682 VLOG_ERR("failed to delete port %s: %s", ofproto_port.name,
683 strerror(error));
684 }
685 ofproto_port_destroy(&ofproto_port);
686 }
687 }
688
689 error = ofproto_create(br->name, br->type, &br->ofproto);
690 if (error) {
691 VLOG_ERR("failed to create bridge %s: %s", br->name,
692 strerror(error));
693 bridge_destroy(br);
694 }
66da9bef 695 }
093e47f4 696}
c3827f61 697
fa066f01
BP
698static void
699port_configure(struct port *port)
700{
701 const struct ovsrec_port *cfg = port->cfg;
702 struct bond_settings bond_settings;
703 struct lacp_settings lacp_settings;
704 struct ofproto_bundle_settings s;
705 struct iface *iface;
82057f51 706
52a90c29
BP
707 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
708 configure_splinter_port(port);
709 return;
710 }
711
fa066f01
BP
712 /* Get name. */
713 s.name = port->name;
3a6ccc8c 714
fa066f01
BP
715 /* Get slaves. */
716 s.n_slaves = 0;
717 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
718 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
892815f5 719 s.slaves[s.n_slaves++] = iface->ofp_port;
fa066f01 720 }
c3827f61 721
fa066f01
BP
722 /* Get VLAN tag. */
723 s.vlan = -1;
acaf1486
BP
724 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
725 s.vlan = *cfg->tag;
fa066f01 726 }
b0ec0f27 727
fa066f01
BP
728 /* Get VLAN trunks. */
729 s.trunks = NULL;
ecac4ebf 730 if (cfg->n_trunks) {
fa066f01 731 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
ecac4ebf
BP
732 }
733
734 /* Get VLAN mode. */
735 if (cfg->vlan_mode) {
736 if (!strcmp(cfg->vlan_mode, "access")) {
737 s.vlan_mode = PORT_VLAN_ACCESS;
738 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
739 s.vlan_mode = PORT_VLAN_TRUNK;
740 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
741 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
742 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
743 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
744 } else {
745 /* This "can't happen" because ovsdb-server should prevent it. */
746 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
747 s.vlan_mode = PORT_VLAN_TRUNK;
748 }
749 } else {
750 if (s.vlan >= 0) {
751 s.vlan_mode = PORT_VLAN_ACCESS;
752 if (cfg->n_trunks) {
753 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
754 port->name);
755 }
756 } else {
757 s.vlan_mode = PORT_VLAN_TRUNK;
758 }
064af421 759 }
a699f614
EJ
760 s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
761 false);
064af421 762
fa066f01
BP
763 /* Get LACP settings. */
764 s.lacp = port_configure_lacp(port, &lacp_settings);
765 if (s.lacp) {
766 size_t i = 0;
064af421 767
fa066f01
BP
768 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
769 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
770 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
064af421 771 }
fa066f01
BP
772 } else {
773 s.lacp_slaves = NULL;
774 }
064af421 775
fa066f01
BP
776 /* Get bond settings. */
777 if (s.n_slaves > 1) {
fa066f01 778 s.bond = &bond_settings;
df53d41c 779 port_configure_bond(port, &bond_settings);
fa066f01
BP
780 } else {
781 s.bond = NULL;
1670c579
EJ
782 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
783 netdev_set_miimon_interval(iface->netdev, 0);
784 }
fa066f01 785 }
093e47f4 786
fa066f01
BP
787 /* Register. */
788 ofproto_bundle_register(port->bridge->ofproto, port, &s);
76343538 789
fa066f01 790 /* Clean up. */
4e51de4c 791 free(s.slaves);
fa066f01
BP
792 free(s.trunks);
793 free(s.lacp_slaves);
794}
76343538 795
6f90b8f4
BP
796/* Pick local port hardware address and datapath ID for 'br'. */
797static void
798bridge_configure_datapath_id(struct bridge *br)
799{
800 uint8_t ea[ETH_ADDR_LEN];
801 uint64_t dpid;
802 struct iface *local_iface;
803 struct iface *hw_addr_iface;
804 char *dpid_string;
76343538 805
6f90b8f4 806 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
892815f5 807 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
6f90b8f4
BP
808 if (local_iface) {
809 int error = netdev_set_etheraddr(local_iface->netdev, ea);
810 if (error) {
811 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
812 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
813 "Ethernet address: %s",
814 br->name, strerror(error));
815 }
816 }
817 memcpy(br->ea, ea, ETH_ADDR_LEN);
76343538 818
6f90b8f4 819 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
e825ace2
BP
820 if (dpid != ofproto_get_datapath_id(br->ofproto)) {
821 VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
822 ofproto_set_datapath_id(br->ofproto, dpid);
823 }
76343538 824
6f90b8f4
BP
825 dpid_string = xasprintf("%016"PRIx64, dpid);
826 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
827 free(dpid_string);
828}
064af421 829
7beaa082
SH
830/* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
831 * 'br'. */
832static uint32_t
833bridge_get_allowed_versions(struct bridge *br)
834{
835 if (!br->cfg->n_protocols)
836 return 0;
837
838 return ofputil_versions_from_strings(br->cfg->protocols,
839 br->cfg->n_protocols);
840}
841
6f90b8f4
BP
842/* Set NetFlow configuration on 'br'. */
843static void
844bridge_configure_netflow(struct bridge *br)
845{
846 struct ovsrec_netflow *cfg = br->cfg->netflow;
847 struct netflow_options opts;
72b06300 848
6f90b8f4
BP
849 if (!cfg) {
850 ofproto_set_netflow(br->ofproto, NULL);
851 return;
852 }
a4af0040 853
6f90b8f4 854 memset(&opts, 0, sizeof opts);
72b06300 855
6f90b8f4
BP
856 /* Get default NetFlow configuration from datapath.
857 * Apply overrides from 'cfg'. */
858 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
859 if (cfg->engine_type) {
860 opts.engine_type = *cfg->engine_type;
861 }
862 if (cfg->engine_id) {
863 opts.engine_id = *cfg->engine_id;
864 }
72b06300 865
6f90b8f4
BP
866 /* Configure active timeout interval. */
867 opts.active_timeout = cfg->active_timeout;
868 if (!opts.active_timeout) {
869 opts.active_timeout = -1;
870 } else if (opts.active_timeout < 0) {
871 VLOG_WARN("bridge %s: active timeout interval set to negative "
872 "value, using default instead (%d seconds)", br->name,
873 NF_ACTIVE_TIMEOUT_DEFAULT);
874 opts.active_timeout = -1;
875 }
72b06300 876
6f90b8f4
BP
877 /* Add engine ID to interface number to disambiguate bridgs? */
878 opts.add_id_to_iface = cfg->add_id_to_interface;
879 if (opts.add_id_to_iface) {
880 if (opts.engine_id > 0x7f) {
881 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
882 "another vswitch, choose an engine id less than 128",
883 br->name);
884 }
885 if (hmap_count(&br->ports) > 508) {
886 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
887 "another port when more than 508 ports are used",
888 br->name);
889 }
890 }
72b06300 891
6f90b8f4
BP
892 /* Collectors. */
893 sset_init(&opts.collectors);
894 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
a4af0040 895
6f90b8f4
BP
896 /* Configure. */
897 if (ofproto_set_netflow(br->ofproto, &opts)) {
898 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
899 }
900 sset_destroy(&opts.collectors);
901}
72b06300 902
6f90b8f4
BP
903/* Set sFlow configuration on 'br'. */
904static void
905bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
906{
907 const struct ovsrec_sflow *cfg = br->cfg->sflow;
908 struct ovsrec_controller **controllers;
909 struct ofproto_sflow_options oso;
910 size_t n_controllers;
911 size_t i;
72b06300 912
6f90b8f4
BP
913 if (!cfg) {
914 ofproto_set_sflow(br->ofproto, NULL);
915 return;
064af421 916 }
8052fb14 917
6f90b8f4 918 memset(&oso, 0, sizeof oso);
52df17e7 919
6f90b8f4
BP
920 sset_init(&oso.targets);
921 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
c1c9c9c4 922
6f90b8f4
BP
923 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
924 if (cfg->sampling) {
925 oso.sampling_rate = *cfg->sampling;
064af421 926 }
6f90b8f4
BP
927
928 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
929 if (cfg->polling) {
930 oso.polling_interval = *cfg->polling;
064af421 931 }
093e47f4 932
6f90b8f4
BP
933 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
934 if (cfg->header) {
935 oso.header_len = *cfg->header;
936 }
392730c4 937
6f90b8f4
BP
938 oso.sub_id = (*sflow_bridge_number)++;
939 oso.agent_device = cfg->agent;
392730c4 940
6f90b8f4
BP
941 oso.control_ip = NULL;
942 n_controllers = bridge_get_controllers(br, &controllers);
943 for (i = 0; i < n_controllers; i++) {
944 if (controllers[i]->local_ip) {
945 oso.control_ip = controllers[i]->local_ip;
946 break;
b31bcf60
EJ
947 }
948 }
6f90b8f4 949 ofproto_set_sflow(br->ofproto, &oso);
b31bcf60 950
6f90b8f4
BP
951 sset_destroy(&oso.targets);
952}
a7ff9bd7 953
29089a54
RL
954/* Set IPFIX configuration on 'br'. */
955static void
956bridge_configure_ipfix(struct bridge *br)
957{
958 const struct ovsrec_ipfix *be_cfg = br->cfg->ipfix;
959 const struct ovsrec_flow_sample_collector_set *fe_cfg;
960 struct ofproto_ipfix_bridge_exporter_options be_opts;
961 struct ofproto_ipfix_flow_exporter_options *fe_opts = NULL;
962 size_t n_fe_opts = 0;
963
964 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
965 if (fe_cfg->bridge == br->cfg) {
966 n_fe_opts++;
967 }
968 }
969
970 if (!be_cfg && n_fe_opts == 0) {
971 ofproto_set_ipfix(br->ofproto, NULL, NULL, 0);
972 return;
973 }
974
975 if (be_cfg) {
976 memset(&be_opts, 0, sizeof be_opts);
977
978 sset_init(&be_opts.targets);
979 sset_add_array(&be_opts.targets, be_cfg->targets, be_cfg->n_targets);
980
981 if (be_cfg->sampling) {
982 be_opts.sampling_rate = *be_cfg->sampling;
983 } else {
984 be_opts.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
985 }
986 if (be_cfg->obs_domain_id) {
987 be_opts.obs_domain_id = *be_cfg->obs_domain_id;
988 }
989 if (be_cfg->obs_point_id) {
990 be_opts.obs_point_id = *be_cfg->obs_point_id;
991 }
992 }
993
994 if (n_fe_opts > 0) {
995 struct ofproto_ipfix_flow_exporter_options *opts;
996 fe_opts = xcalloc(n_fe_opts, sizeof *fe_opts);
997 opts = fe_opts;
998 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
999 if (fe_cfg->bridge == br->cfg) {
1000 opts->collector_set_id = fe_cfg->id;
1001 sset_init(&opts->targets);
1002 sset_add_array(&opts->targets, fe_cfg->ipfix->targets,
1003 fe_cfg->ipfix->n_targets);
1004 opts++;
1005 }
1006 }
1007 }
1008
1009 ofproto_set_ipfix(br->ofproto, be_cfg ? &be_opts : NULL, fe_opts,
1010 n_fe_opts);
1011
1012 if (be_cfg) {
1013 sset_destroy(&be_opts.targets);
1014 }
1015
1016 if (n_fe_opts > 0) {
1017 struct ofproto_ipfix_flow_exporter_options *opts = fe_opts;
1018 size_t i;
1019 for (i = 0; i < n_fe_opts; i++) {
1020 sset_destroy(&opts->targets);
1021 opts++;
1022 }
1023 free(fe_opts);
1024 }
1025}
1026
21f7563c
JP
1027static void
1028port_configure_stp(const struct ofproto *ofproto, struct port *port,
1029 struct ofproto_port_stp_settings *port_s,
1030 int *port_num_counter, unsigned long *port_num_bitmap)
1031{
1032 const char *config_str;
1033 struct iface *iface;
1034
079b5942 1035 if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
21f7563c
JP
1036 port_s->enable = false;
1037 return;
1038 } else {
1039 port_s->enable = true;
1040 }
1041
1042 /* STP over bonds is not supported. */
1043 if (!list_is_singleton(&port->ifaces)) {
1044 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
1045 port->name);
1046 port_s->enable = false;
1047 return;
1048 }
1049
1050 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1051
1052 /* Internal ports shouldn't participate in spanning tree, so
1053 * skip them. */
1054 if (!strcmp(iface->type, "internal")) {
1055 VLOG_DBG("port %s: disable STP on internal ports", port->name);
1056 port_s->enable = false;
1057 return;
1058 }
1059
1060 /* STP on mirror output ports is not supported. */
1061 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1062 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
1063 port_s->enable = false;
1064 return;
1065 }
1066
a699f614 1067 config_str = smap_get(&port->cfg->other_config, "stp-port-num");
21f7563c
JP
1068 if (config_str) {
1069 unsigned long int port_num = strtoul(config_str, NULL, 0);
1070 int port_idx = port_num - 1;
1071
1072 if (port_num < 1 || port_num > STP_MAX_PORTS) {
1073 VLOG_ERR("port %s: invalid stp-port-num", port->name);
1074 port_s->enable = false;
1075 return;
1076 }
1077
1078 if (bitmap_is_set(port_num_bitmap, port_idx)) {
1079 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
1080 port->name, port_num);
1081 port_s->enable = false;
1082 return;
1083 }
1084 bitmap_set1(port_num_bitmap, port_idx);
1085 port_s->port_num = port_idx;
1086 } else {
6019f124 1087 if (*port_num_counter >= STP_MAX_PORTS) {
21f7563c
JP
1088 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
1089 port_s->enable = false;
1090 return;
1091 }
1092
1093 port_s->port_num = (*port_num_counter)++;
1094 }
1095
a699f614 1096 config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
21f7563c
JP
1097 if (config_str) {
1098 port_s->path_cost = strtoul(config_str, NULL, 10);
1099 } else {
6c038611 1100 enum netdev_features current;
d02a5f8e 1101 unsigned int mbps;
21f7563c 1102
d02a5f8e
BP
1103 netdev_get_features(iface->netdev, &current, NULL, NULL, NULL);
1104 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1105 port_s->path_cost = stp_convert_speed_to_cost(mbps);
21f7563c
JP
1106 }
1107
a699f614 1108 config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
21f7563c
JP
1109 if (config_str) {
1110 port_s->priority = strtoul(config_str, NULL, 0);
1111 } else {
1112 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
1113 }
1114}
1115
1116/* Set spanning tree configuration on 'br'. */
1117static void
1118bridge_configure_stp(struct bridge *br)
1119{
1120 if (!br->cfg->stp_enable) {
1121 ofproto_set_stp(br->ofproto, NULL);
1122 } else {
1123 struct ofproto_stp_settings br_s;
1124 const char *config_str;
1125 struct port *port;
1126 int port_num_counter;
1127 unsigned long *port_num_bitmap;
1128
a699f614 1129 config_str = smap_get(&br->cfg->other_config, "stp-system-id");
21f7563c
JP
1130 if (config_str) {
1131 uint8_t ea[ETH_ADDR_LEN];
1132
1133 if (eth_addr_from_string(config_str, ea)) {
1134 br_s.system_id = eth_addr_to_uint64(ea);
1135 } else {
1136 br_s.system_id = eth_addr_to_uint64(br->ea);
1137 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
1138 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1139 }
1140 } else {
1141 br_s.system_id = eth_addr_to_uint64(br->ea);
1142 }
1143
a699f614 1144 config_str = smap_get(&br->cfg->other_config, "stp-priority");
21f7563c
JP
1145 if (config_str) {
1146 br_s.priority = strtoul(config_str, NULL, 0);
1147 } else {
1148 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1149 }
1150
a699f614 1151 config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
21f7563c
JP
1152 if (config_str) {
1153 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1154 } else {
1155 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1156 }
1157
a699f614 1158 config_str = smap_get(&br->cfg->other_config, "stp-max-age");
21f7563c
JP
1159 if (config_str) {
1160 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1161 } else {
1162 br_s.max_age = STP_DEFAULT_MAX_AGE;
1163 }
1164
a699f614 1165 config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
21f7563c
JP
1166 if (config_str) {
1167 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1168 } else {
1169 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1170 }
1171
1172 /* Configure STP on the bridge. */
1173 if (ofproto_set_stp(br->ofproto, &br_s)) {
1174 VLOG_ERR("bridge %s: could not enable STP", br->name);
1175 return;
1176 }
1177
1178 /* Users must either set the port number with the "stp-port-num"
1179 * configuration on all ports or none. If manual configuration
1180 * is not done, then we allocate them sequentially. */
1181 port_num_counter = 0;
1182 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1183 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1184 struct ofproto_port_stp_settings port_s;
1185 struct iface *iface;
1186
1187 port_configure_stp(br->ofproto, port, &port_s,
1188 &port_num_counter, port_num_bitmap);
1189
1190 /* As bonds are not supported, just apply configuration to
1191 * all interfaces. */
1192 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1193 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1194 &port_s)) {
1195 VLOG_ERR("port %s: could not enable STP", port->name);
1196 continue;
1197 }
1198 }
1199 }
1200
1201 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1202 && port_num_counter) {
1203 VLOG_ERR("bridge %s: must manually configure all STP port "
1204 "IDs or none, disabling", br->name);
1205 ofproto_set_stp(br->ofproto, NULL);
1206 }
1207 bitmap_free(port_num_bitmap);
1208 }
1209}
1210
e8192d80
BP
1211static bool
1212bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1213{
1214 const struct port *port = port_lookup(br, name);
1215 return port && port_is_bond_fake_iface(port);
093e47f4
BP
1216}
1217
e8192d80
BP
1218static bool
1219port_is_bond_fake_iface(const struct port *port)
093e47f4 1220{
e8192d80
BP
1221 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1222}
093e47f4 1223
66da9bef
BP
1224static void
1225add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1226{
1227 struct bridge *br, *next;
1228 struct shash new_br;
1229 size_t i;
1230
1231 /* Collect new bridges' names and types. */
1232 shash_init(&new_br);
1233 for (i = 0; i < cfg->n_bridges; i++) {
5af5b532 1234 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
66da9bef 1235 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
5af5b532
BP
1236
1237 if (strchr(br_cfg->name, '/')) {
1238 /* Prevent remote ovsdb-server users from accessing arbitrary
1239 * directories, e.g. consider a bridge named "../../../etc/". */
1240 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1241 br_cfg->name);
1242 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1243 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
66da9bef
BP
1244 }
1245 }
1246
1247 /* Get rid of deleted bridges or those whose types have changed.
1248 * Update 'cfg' of bridges that still exist. */
1249 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1250 br->cfg = shash_find_data(&new_br, br->name);
f79e673f
BP
1251 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1252 br->cfg->datapath_type))) {
66da9bef
BP
1253 bridge_destroy(br);
1254 }
1255 }
1256
1257 /* Add new bridges. */
1258 for (i = 0; i < cfg->n_bridges; i++) {
1259 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1260 struct bridge *br = bridge_lookup(br_cfg->name);
1261 if (!br) {
1262 bridge_create(br_cfg);
1263 }
1264 }
1265
1266 shash_destroy(&new_br);
1267}
1268
66da9bef 1269static void
892815f5 1270iface_set_ofp_port(struct iface *iface, int ofp_port)
66da9bef
BP
1271{
1272 struct bridge *br = iface->port->bridge;
1273
cb22974d 1274 ovs_assert(iface->ofp_port < 0 && ofp_port >= 0);
892815f5
BP
1275 iface->ofp_port = ofp_port;
1276 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
2e281761 1277 iface_set_ofport(iface->cfg, ofp_port);
66da9bef
BP
1278}
1279
2a485ee8
BP
1280/* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1281 * Returns 0 if successful, otherwise a positive errno value. */
1282static int
1283iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1284 struct netdev *netdev)
1285{
2a485ee8
BP
1286 int error;
1287
a699f614 1288 error = netdev_set_config(netdev, &iface_cfg->options);
2a485ee8
BP
1289 if (error) {
1290 VLOG_WARN("could not configure network device %s (%s)",
1291 iface_cfg->name, strerror(error));
1292 }
1293 return error;
1294}
1295
5344c1ac
BP
1296/* This function determines whether 'ofproto_port', which is attached to
1297 * br->ofproto's datapath, is one that we want in 'br'.
1298 *
1299 * If it is, it returns true, after creating an iface (if necessary),
1300 * configuring the iface's netdev according to the iface's options, and setting
1301 * iface's ofp_port member to 'ofproto_port->ofp_port'.
1302 *
1303 * If, on the other hand, 'port' should be removed, it returns false. The
1304 * caller should later detach the port from br->ofproto. */
1305static bool
1306bridge_refresh_one_ofp_port(struct bridge *br,
1307 const struct ofproto_port *ofproto_port)
1308{
1309 const char *name = ofproto_port->name;
1310 const char *type = ofproto_port->type;
1311 uint16_t ofp_port = ofproto_port->ofp_port;
1312
1313 struct iface *iface = iface_lookup(br, name);
1314 if (iface) {
1315 /* Check that the name-to-number mapping is one-to-one. */
1316 if (iface->ofp_port >= 0) {
1317 VLOG_WARN("bridge %s: interface %s reported twice",
1318 br->name, name);
1319 return false;
1320 } else if (iface_from_ofp_port(br, ofp_port)) {
1321 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1322 br->name, ofp_port);
1323 return false;
1324 }
1325
1326 /* There's a configured interface named 'name'. */
1327 if (strcmp(type, iface->type)
1328 || iface_set_netdev_config(iface->cfg, iface->netdev)) {
1329 /* It's the wrong type, or it's the right type but can't be
1330 * configured as the user requested, so we must destroy it. */
1331 return false;
1332 } else {
ee4dd8eb 1333 /* It's the right type and configured correctly. Keep it. */
5344c1ac
BP
1334 iface_set_ofp_port(iface, ofp_port);
1335 return true;
1336 }
1337 } else if (bridge_has_bond_fake_iface(br, name)
1338 && !strcmp(type, "internal")) {
1339 /* It's a bond fake iface. Keep it. */
1340 return true;
1341 } else {
1342 /* There's no configured interface named 'name', but there might be an
1343 * interface of that name queued to be created.
1344 *
1345 * If there is, and it has the correct type, then try to configure it
1346 * and add it. If that's successful, we'll keep it. Otherwise, we'll
1347 * delete it and later try to re-add it. */
1348 struct if_cfg *if_cfg = if_cfg_lookup(br, name);
1349 return (if_cfg
1350 && !strcmp(type, iface_get_type(if_cfg->cfg, br->cfg))
1351 && iface_create(br, if_cfg, ofp_port));
1352 }
1353}
1354
bae7208e
EJ
1355/* Update bridges "if_cfg"s, "struct port"s, and "struct iface"s to be
1356 * consistent with the ofp_ports in "br->ofproto". */
66da9bef 1357static void
892815f5 1358bridge_refresh_ofp_port(struct bridge *br)
66da9bef
BP
1359{
1360 struct ofproto_port_dump dump;
1361 struct ofproto_port ofproto_port;
bae7208e 1362 struct port *port, *port_next;
66da9bef 1363
bae7208e 1364 /* Clear each "struct iface"s ofp_port so we can get its correct value. */
66da9bef
BP
1365 hmap_clear(&br->ifaces);
1366 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1367 struct iface *iface;
1368
1369 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
892815f5 1370 iface->ofp_port = -1;
66da9bef
BP
1371 }
1372 }
1373
bae7208e
EJ
1374 /* Obtain the correct "ofp_port"s from ofproto. Find any if_cfg's which
1375 * already exist in the datapath and promote them to full fledged "struct
1376 * iface"s. Mark ports in the datapath which don't belong as garbage. */
66da9bef 1377 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
5344c1ac
BP
1378 if (!bridge_refresh_one_ofp_port(br, &ofproto_port)) {
1379 struct ofpp_garbage *garbage = xmalloc(sizeof *garbage);
1380 garbage->ofp_port = ofproto_port.ofp_port;
1381 list_push_front(&br->ofpp_garbage, &garbage->list_node);
bae7208e
EJ
1382 }
1383 }
1384
1385 /* Some ifaces may not have "ofp_port"s in ofproto and therefore don't
1386 * deserve to have "struct iface"s. Demote these to "if_cfg"s so that
1387 * later they can be added to ofproto. */
1388 HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
1389 struct iface *iface, *iface_next;
1390
1391 LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
1392 if (iface->ofp_port < 0) {
1393 bridge_queue_if_cfg(br, iface->cfg, port->cfg);
1394 iface_destroy(iface);
66da9bef
BP
1395 }
1396 }
bae7208e
EJ
1397
1398 if (list_is_empty(&port->ifaces)) {
1399 port_destroy(port);
1400 }
66da9bef
BP
1401 }
1402}
1403
81816a5f 1404/* Opens a network device for 'if_cfg' and configures it. If '*ofp_portp'
cc086465
BP
1405 * is negative, adds the network device to br->ofproto and stores the OpenFlow
1406 * port number in '*ofp_portp'; otherwise leaves br->ofproto and '*ofp_portp'
1407 * untouched.
1408 *
1409 * If successful, returns 0 and stores the network device in '*netdevp'. On
1410 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1411static int
1412iface_do_create(const struct bridge *br,
81816a5f 1413 const struct if_cfg *if_cfg,
cc086465
BP
1414 int *ofp_portp, struct netdev **netdevp)
1415{
81816a5f
JP
1416 const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
1417 const struct ovsrec_port *port_cfg = if_cfg->parent;
cc086465
BP
1418 struct netdev *netdev;
1419 int error;
1420
94a53842
AW
1421 if (netdev_is_reserved_name(iface_cfg->name)) {
1422 VLOG_WARN("could not create interface %s, name is reserved",
1423 iface_cfg->name);
1424 error = EINVAL;
1425 goto error;
1426 }
1427
cc086465
BP
1428 error = netdev_open(iface_cfg->name,
1429 iface_get_type(iface_cfg, br->cfg), &netdev);
1430 if (error) {
1431 VLOG_WARN("could not open network device %s (%s)",
1432 iface_cfg->name, strerror(error));
1433 goto error;
1434 }
1435
1436 error = iface_set_netdev_config(iface_cfg, netdev);
1437 if (error) {
1438 goto error;
1439 }
1440
1441 if (*ofp_portp < 0) {
81816a5f 1442 uint16_t ofp_port = if_cfg->ofport;
cc086465
BP
1443
1444 error = ofproto_port_add(br->ofproto, netdev, &ofp_port);
1445 if (error) {
1446 goto error;
1447 }
1448 *ofp_portp = ofp_port;
1449
1450 VLOG_INFO("bridge %s: added interface %s on port %d",
1451 br->name, iface_cfg->name, *ofp_portp);
1452 } else {
1453 VLOG_DBG("bridge %s: interface %s is on port %d",
1454 br->name, iface_cfg->name, *ofp_portp);
1455 }
1456
bef071a5
JP
1457 if ((port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter"))
1458 || iface_is_internal(iface_cfg, br->cfg)) {
4b609110 1459 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
cc086465
BP
1460 }
1461
1462 *netdevp = netdev;
1463 return 0;
1464
1465error:
1466 *netdevp = NULL;
1467 netdev_close(netdev);
1468 return error;
1469}
1470
bae7208e
EJ
1471/* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1472 * port number 'ofp_port'. If ofp_port is negative, an OpenFlow port is
1473 * automatically allocated for the iface. Takes ownership of and
01546f5d
BP
1474 * deallocates 'if_cfg'.
1475 *
1476 * Return true if an iface is successfully created, false otherwise. */
1477static bool
bae7208e 1478iface_create(struct bridge *br, struct if_cfg *if_cfg, int ofp_port)
66da9bef 1479{
cc086465
BP
1480 const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
1481 const struct ovsrec_port *port_cfg = if_cfg->parent;
1482
1483 struct netdev *netdev;
bae7208e
EJ
1484 struct iface *iface;
1485 struct port *port;
1486 int error;
81816a5f 1487 bool ok = true;
52a90c29 1488
6b803ddc
EJ
1489 /* Do the bits that can fail up front.
1490 *
1491 * It's a bit dangerous to call bridge_run_fast() here as ofproto's
1492 * internal datastructures may not be consistent. Eventually, when port
1493 * additions and deletions are cheaper, these calls should be removed. */
1494 bridge_run_fast();
cb22974d 1495 ovs_assert(!iface_lookup(br, iface_cfg->name));
81816a5f 1496 error = iface_do_create(br, if_cfg, &ofp_port, &netdev);
6b803ddc 1497 bridge_run_fast();
bae7208e 1498 if (error) {
558e2cc5 1499 iface_set_ofport(iface_cfg, -1);
cc086465 1500 iface_clear_db_record(iface_cfg);
81816a5f
JP
1501 ok = false;
1502 goto done;
bae7208e 1503 }
c7e7bb21 1504
cc086465
BP
1505 /* Get or create the port structure. */
1506 port = port_lookup(br, port_cfg->name);
1507 if (!port) {
1508 port = port_create(br, port_cfg);
bae7208e
EJ
1509 }
1510
cc086465
BP
1511 /* Create the iface structure. */
1512 iface = xzalloc(sizeof *iface);
1513 list_push_back(&port->ifaces, &iface->port_elem);
1514 hmap_insert(&br->iface_by_name, &iface->name_node,
1515 hash_string(iface_cfg->name, 0));
1516 iface->port = port;
1517 iface->name = xstrdup(iface_cfg->name);
1518 iface->ofp_port = -1;
1519 iface->netdev = netdev;
1520 iface->type = iface_get_type(iface_cfg, br->cfg);
1521 iface->cfg = iface_cfg;
8b5da7a6 1522
cc086465 1523 iface_set_ofp_port(iface, ofp_port);
66da9bef 1524
cc086465
BP
1525 /* Populate initial status in database. */
1526 iface_refresh_stats(iface);
1527 iface_refresh_status(iface);
bae7208e
EJ
1528
1529 /* Add bond fake iface if necessary. */
1530 if (port_is_bond_fake_iface(port)) {
8b5da7a6
BP
1531 struct ofproto_port ofproto_port;
1532
bae7208e
EJ
1533 if (ofproto_port_query_by_name(br->ofproto, port->name,
1534 &ofproto_port)) {
1535 struct netdev *netdev;
1536 int error;
1537
1538 error = netdev_open(port->name, "internal", &netdev);
1539 if (!error) {
0d7bb1b4 1540 uint16_t fake_ofp_port = if_cfg->ofport;
81816a5f 1541
0d7bb1b4 1542 ofproto_port_add(br->ofproto, netdev, &fake_ofp_port);
bae7208e 1543 netdev_close(netdev);
66da9bef 1544 } else {
bae7208e
EJ
1545 VLOG_WARN("could not open network device %s (%s)",
1546 port->name, strerror(error));
66da9bef 1547 }
bae7208e
EJ
1548 } else {
1549 /* Already exists, nothing to do. */
1550 ofproto_port_destroy(&ofproto_port);
66da9bef
BP
1551 }
1552 }
01546f5d 1553
81816a5f
JP
1554done:
1555 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
1556 free(if_cfg);
1557
1558 return ok;
66da9bef
BP
1559}
1560
084f5290
SH
1561/* Set Flow eviction threshold */
1562static void
1563bridge_configure_flow_eviction_threshold(struct bridge *br)
1564{
1565 const char *threshold_str;
1566 unsigned threshold;
1567
a699f614
EJ
1568 threshold_str = smap_get(&br->cfg->other_config,
1569 "flow-eviction-threshold");
084f5290
SH
1570 if (threshold_str) {
1571 threshold = strtoul(threshold_str, NULL, 10);
1572 } else {
9cac5195 1573 threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT;
084f5290
SH
1574 }
1575 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1576}
1577
8402c74b
SS
1578/* Set forward BPDU option. */
1579static void
1580bridge_configure_forward_bpdu(struct bridge *br)
1581{
a699f614
EJ
1582 ofproto_set_forward_bpdu(br->ofproto,
1583 smap_get_bool(&br->cfg->other_config,
1584 "forward-bpdu",
1585 false));
8402c74b
SS
1586}
1587
c4069512 1588/* Set MAC learning table configuration for 'br'. */
e764773c 1589static void
c4069512 1590bridge_configure_mac_table(struct bridge *br)
e764773c
BP
1591{
1592 const char *idle_time_str;
1593 int idle_time;
1594
c4069512
BP
1595 const char *mac_table_size_str;
1596 int mac_table_size;
1597
a699f614 1598 idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
e764773c
BP
1599 idle_time = (idle_time_str && atoi(idle_time_str)
1600 ? atoi(idle_time_str)
1601 : MAC_ENTRY_DEFAULT_IDLE_TIME);
c4069512
BP
1602
1603 mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
1604 mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
1605 ? atoi(mac_table_size_str)
1606 : MAC_DEFAULT_MAX);
1607
1608 ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
e764773c
BP
1609}
1610
064af421
BP
1611static void
1612bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
07c318f4 1613 struct iface **hw_addr_iface)
064af421 1614{
f145afdc 1615 struct hmapx mirror_output_ports;
093e47f4 1616 const char *hwaddr;
8052fb14 1617 struct port *port;
3a48ace3 1618 bool found_addr = false;
064af421 1619 int error;
f145afdc 1620 int i;
064af421 1621
07c318f4 1622 *hw_addr_iface = NULL;
064af421
BP
1623
1624 /* Did the user request a particular MAC? */
a699f614 1625 hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
093e47f4 1626 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
064af421
BP
1627 if (eth_addr_is_multicast(ea)) {
1628 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1629 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1630 } else if (eth_addr_is_zero(ea)) {
1631 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1632 } else {
1633 return;
1634 }
1635 }
1636
f145afdc
BP
1637 /* Mirror output ports don't participate in picking the local hardware
1638 * address. ofproto can't help us find out whether a given port is a
1639 * mirror output because we haven't configured mirrors yet, so we need to
1640 * accumulate them ourselves. */
1641 hmapx_init(&mirror_output_ports);
1642 for (i = 0; i < br->cfg->n_mirrors; i++) {
1643 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1644 if (m->output_port) {
1645 hmapx_add(&mirror_output_ports, m->output_port);
1646 }
1647 }
1648
141f4942
BP
1649 /* Otherwise choose the minimum non-local MAC address among all of the
1650 * interfaces. */
8052fb14 1651 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
58b7527e 1652 uint8_t iface_ea[ETH_ADDR_LEN];
83db7968 1653 struct iface *candidate;
58b7527e
BP
1654 struct iface *iface;
1655
1656 /* Mirror output ports don't participate. */
f145afdc 1657 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
064af421
BP
1658 continue;
1659 }
58b7527e
BP
1660
1661 /* Choose the MAC address to represent the port. */
83db7968 1662 iface = NULL;
76343538 1663 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
ba09980a
BP
1664 /* Find the interface with this Ethernet address (if any) so that
1665 * we can provide the correct devname to the caller. */
83db7968 1666 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
ba09980a 1667 uint8_t candidate_ea[ETH_ADDR_LEN];
8fef8c71 1668 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
ba09980a
BP
1669 && eth_addr_equals(iface_ea, candidate_ea)) {
1670 iface = candidate;
1671 }
1672 }
58b7527e
BP
1673 } else {
1674 /* Choose the interface whose MAC address will represent the port.
1675 * The Linux kernel bonding code always chooses the MAC address of
1676 * the first slave added to a bond, and the Fedora networking
1677 * scripts always add slaves to a bond in alphabetical order, so
1678 * for compatibility we choose the interface with the name that is
1679 * first in alphabetical order. */
83db7968
BP
1680 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1681 if (!iface || strcmp(candidate->name, iface->name) < 0) {
58b7527e
BP
1682 iface = candidate;
1683 }
1684 }
1685
1686 /* The local port doesn't count (since we're trying to choose its
141f4942 1687 * MAC address anyway). */
892815f5 1688 if (iface->ofp_port == OFPP_LOCAL) {
064af421
BP
1689 continue;
1690 }
58b7527e
BP
1691
1692 /* Grab MAC. */
07c318f4 1693 error = netdev_get_etheraddr(iface->netdev, iface_ea);
58b7527e 1694 if (error) {
58b7527e 1695 continue;
064af421
BP
1696 }
1697 }
58b7527e
BP
1698
1699 /* Compare against our current choice. */
1700 if (!eth_addr_is_multicast(iface_ea) &&
141f4942 1701 !eth_addr_is_local(iface_ea) &&
58b7527e
BP
1702 !eth_addr_is_reserved(iface_ea) &&
1703 !eth_addr_is_zero(iface_ea) &&
0d1fe4a3 1704 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
58b7527e 1705 {
0babc06f 1706 memcpy(ea, iface_ea, ETH_ADDR_LEN);
8fef8c71 1707 *hw_addr_iface = iface;
3a48ace3 1708 found_addr = true;
58b7527e 1709 }
064af421 1710 }
f145afdc 1711
51b67a10
JP
1712 if (!found_addr) {
1713 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1714 *hw_addr_iface = NULL;
1715 }
1716
f145afdc 1717 hmapx_destroy(&mirror_output_ports);
064af421
BP
1718}
1719
1720/* Choose and returns the datapath ID for bridge 'br' given that the bridge
1721 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
07c318f4
BP
1722 * an interface on 'br', then that interface must be passed in as
1723 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1724 * 'hw_addr_iface' must be passed in as a null pointer. */
064af421
BP
1725static uint64_t
1726bridge_pick_datapath_id(struct bridge *br,
1727 const uint8_t bridge_ea[ETH_ADDR_LEN],
07c318f4 1728 struct iface *hw_addr_iface)
064af421
BP
1729{
1730 /*
1731 * The procedure for choosing a bridge MAC address will, in the most
1732 * ordinary case, also choose a unique MAC that we can use as a datapath
1733 * ID. In some special cases, though, multiple bridges will end up with
1734 * the same MAC address. This is OK for the bridges, but it will confuse
1735 * the OpenFlow controller, because each datapath needs a unique datapath
1736 * ID.
1737 *
1738 * Datapath IDs must be unique. It is also very desirable that they be
1739 * stable from one run to the next, so that policy set on a datapath
1740 * "sticks".
1741 */
093e47f4 1742 const char *datapath_id;
064af421
BP
1743 uint64_t dpid;
1744
a699f614 1745 datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
093e47f4 1746 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
064af421
BP
1747 return dpid;
1748 }
1749
03eae5f8 1750 if (!hw_addr_iface) {
064af421
BP
1751 /*
1752 * A purely internal bridge, that is, one that has no non-virtual
03eae5f8 1753 * network devices on it at all, is difficult because it has no
064af421
BP
1754 * natural unique identifier at all.
1755 *
1756 * When the host is a XenServer, we handle this case by hashing the
1757 * host's UUID with the name of the bridge. Names of bridges are
1758 * persistent across XenServer reboots, although they can be reused if
1759 * an internal network is destroyed and then a new one is later
1760 * created, so this is fairly effective.
1761 *
1762 * When the host is not a XenServer, we punt by using a random MAC
1763 * address on each run.
1764 */
1765 const char *host_uuid = xenserver_get_host_uuid();
1766 if (host_uuid) {
1767 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1768 dpid = dpid_from_hash(combined, strlen(combined));
1769 free(combined);
1770 return dpid;
1771 }
1772 }
1773
1774 return eth_addr_to_uint64(bridge_ea);
1775}
1776
1777static uint64_t
1778dpid_from_hash(const void *data, size_t n)
1779{
5eccf359 1780 uint8_t hash[SHA1_DIGEST_SIZE];
064af421
BP
1781
1782 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
5eccf359 1783 sha1_bytes(data, n, hash);
064af421
BP
1784 eth_addr_mark_random(hash);
1785 return eth_addr_to_uint64(hash);
1786}
1787
ea83a2fc 1788static void
ea763e0e 1789iface_refresh_status(struct iface *iface)
ea83a2fc 1790{
79f1cbe9 1791 struct smap smap;
ea763e0e 1792
6c038611 1793 enum netdev_features current;
e210037e
AE
1794 int64_t bps;
1795 int mtu;
1796 int64_t mtu_64;
df867eda 1797 uint8_t mac[ETH_ADDR_LEN];
e210037e
AE
1798 int error;
1799
cfea354b
BP
1800 if (iface_is_synthetic(iface)) {
1801 return;
1802 }
1803
79f1cbe9 1804 smap_init(&smap);
ea763e0e 1805
275707c3 1806 if (!netdev_get_status(iface->netdev, &smap)) {
a699f614 1807 ovsrec_interface_set_status(iface->cfg, &smap);
ea763e0e 1808 } else {
a699f614 1809 ovsrec_interface_set_status(iface->cfg, NULL);
ea763e0e
EJ
1810 }
1811
79f1cbe9 1812 smap_destroy(&smap);
e210037e 1813
e210037e 1814 error = netdev_get_features(iface->netdev, &current, NULL, NULL, NULL);
d02a5f8e
BP
1815 bps = !error ? netdev_features_to_bps(current, 0) : 0;
1816 if (bps) {
e210037e
AE
1817 ovsrec_interface_set_duplex(iface->cfg,
1818 netdev_features_is_full_duplex(current)
1819 ? "full" : "half");
e210037e 1820 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
d0db8de2 1821 } else {
e210037e
AE
1822 ovsrec_interface_set_duplex(iface->cfg, NULL);
1823 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1824 }
1825
e210037e 1826 error = netdev_get_mtu(iface->netdev, &mtu);
9b020780 1827 if (!error) {
e210037e
AE
1828 mtu_64 = mtu;
1829 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
8d6db33e 1830 } else {
e210037e
AE
1831 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1832 }
df867eda
JP
1833
1834 error = netdev_get_etheraddr(iface->netdev, mac);
1835 if (!error) {
1836 char mac_string[32];
1837
1838 sprintf(mac_string, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
1839 ovsrec_interface_set_mac_in_use(iface->cfg, mac_string);
1840 } else {
1841 ovsrec_interface_set_mac_in_use(iface->cfg, NULL);
1842 }
ea83a2fc
EJ
1843}
1844
353079d0
EJ
1845/* Writes 'iface''s CFM statistics to the database. 'iface' must not be
1846 * synthetic. */
8f3fe844 1847static void
b31bcf60
EJ
1848iface_refresh_cfm_stats(struct iface *iface)
1849{
93b8df38 1850 const struct ovsrec_interface *cfg = iface->cfg;
9a9e3786
BP
1851 struct ofproto_cfm_status status;
1852
1853 if (!ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
1854 iface->ofp_port, &status)) {
1855 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1856 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1857 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1858 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1859 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1860 } else {
b9380396 1861 const char *reasons[CFM_FAULT_N_REASONS];
9a9e3786
BP
1862 int64_t cfm_health = status.health;
1863 bool faulted = status.faults != 0;
b9380396
EJ
1864 size_t i, j;
1865
9a9e3786
BP
1866 ovsrec_interface_set_cfm_fault(cfg, &faulted, 1);
1867
b9380396
EJ
1868 j = 0;
1869 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1870 int reason = 1 << i;
9a9e3786 1871 if (status.faults & reason) {
b9380396
EJ
1872 reasons[j++] = cfm_fault_reason_to_str(reason);
1873 }
1874 }
b9380396 1875 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1c0333b6 1876
18637fdc
BP
1877 if (status.remote_opstate >= 0) {
1878 const char *remote_opstate = status.remote_opstate ? "up" : "down";
1879 ovsrec_interface_set_cfm_remote_opstate(cfg, remote_opstate);
1880 } else {
1881 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1882 }
1883
9a9e3786
BP
1884 ovsrec_interface_set_cfm_remote_mpids(cfg,
1885 (const int64_t *)status.rmps,
1886 status.n_rmps);
4cd9ab26
BP
1887 if (cfm_health >= 0) {
1888 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
1889 } else {
1890 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1891 }
3967a833 1892 }
b31bcf60
EJ
1893}
1894
018f1525
BP
1895static void
1896iface_refresh_stats(struct iface *iface)
1897{
98dbe2dd
BP
1898#define IFACE_STATS \
1899 IFACE_STAT(rx_packets, "rx_packets") \
1900 IFACE_STAT(tx_packets, "tx_packets") \
1901 IFACE_STAT(rx_bytes, "rx_bytes") \
1902 IFACE_STAT(tx_bytes, "tx_bytes") \
1903 IFACE_STAT(rx_dropped, "rx_dropped") \
1904 IFACE_STAT(tx_dropped, "tx_dropped") \
1905 IFACE_STAT(rx_errors, "rx_errors") \
1906 IFACE_STAT(tx_errors, "tx_errors") \
1907 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1908 IFACE_STAT(rx_over_errors, "rx_over_err") \
1909 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1910 IFACE_STAT(collisions, "collisions")
1911
c2553db9
BP
1912#define IFACE_STAT(MEMBER, NAME) + 1
1913 enum { N_IFACE_STATS = IFACE_STATS };
98dbe2dd 1914#undef IFACE_STAT
c2553db9
BP
1915 int64_t values[N_IFACE_STATS];
1916 char *keys[N_IFACE_STATS];
1917 int n;
018f1525
BP
1918
1919 struct netdev_stats stats;
1920
cfea354b
BP
1921 if (iface_is_synthetic(iface)) {
1922 return;
1923 }
1924
018f1525
BP
1925 /* Intentionally ignore return value, since errors will set 'stats' to
1926 * all-1s, and we will deal with that correctly below. */
1927 netdev_get_stats(iface->netdev, &stats);
1928
c2553db9
BP
1929 /* Copy statistics into keys[] and values[]. */
1930 n = 0;
1931#define IFACE_STAT(MEMBER, NAME) \
1932 if (stats.MEMBER != UINT64_MAX) { \
1933 keys[n] = NAME; \
1934 values[n] = stats.MEMBER; \
1935 n++; \
1936 }
98dbe2dd
BP
1937 IFACE_STATS;
1938#undef IFACE_STAT
c2553db9 1939 ovs_assert(n <= N_IFACE_STATS);
018f1525 1940
c2553db9 1941 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
98dbe2dd 1942#undef IFACE_STATS
018f1525
BP
1943}
1944
21f7563c
JP
1945static void
1946br_refresh_stp_status(struct bridge *br)
1947{
a699f614 1948 struct smap smap = SMAP_INITIALIZER(&smap);
21f7563c
JP
1949 struct ofproto *ofproto = br->ofproto;
1950 struct ofproto_stp_status status;
21f7563c
JP
1951
1952 if (ofproto_get_stp_status(ofproto, &status)) {
1953 return;
1954 }
1955
1956 if (!status.enabled) {
a699f614 1957 ovsrec_bridge_set_status(br->cfg, NULL);
21f7563c
JP
1958 return;
1959 }
1960
a699f614
EJ
1961 smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
1962 STP_ID_ARGS(status.bridge_id));
1963 smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
1964 STP_ID_ARGS(status.designated_root));
1965 smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
21f7563c 1966
a699f614
EJ
1967 ovsrec_bridge_set_status(br->cfg, &smap);
1968 smap_destroy(&smap);
21f7563c
JP
1969}
1970
1971static void
1972port_refresh_stp_status(struct port *port)
1973{
1974 struct ofproto *ofproto = port->bridge->ofproto;
1975 struct iface *iface;
1976 struct ofproto_port_stp_status status;
a699f614 1977 char *keys[3];
80740385 1978 int64_t int_values[3];
a699f614 1979 struct smap smap;
21f7563c 1980
06b592bc
EJ
1981 if (port_is_synthetic(port)) {
1982 return;
1983 }
1984
21f7563c
JP
1985 /* STP doesn't currently support bonds. */
1986 if (!list_is_singleton(&port->ifaces)) {
a699f614 1987 ovsrec_port_set_status(port->cfg, NULL);
21f7563c
JP
1988 return;
1989 }
1990
1991 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1992
1993 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1994 return;
1995 }
1996
1997 if (!status.enabled) {
a699f614 1998 ovsrec_port_set_status(port->cfg, NULL);
80740385 1999 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
21f7563c
JP
2000 return;
2001 }
2002
80740385 2003 /* Set Status column. */
a699f614
EJ
2004 smap_init(&smap);
2005 smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
2006 smap_add(&smap, "stp_state", stp_state_name(status.state));
2007 smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
2008 smap_add(&smap, "stp_role", stp_role_name(status.role));
2009 ovsrec_port_set_status(port->cfg, &smap);
2010 smap_destroy(&smap);
80740385
JP
2011
2012 /* Set Statistics column. */
2013 keys[0] = "stp_tx_count";
2014 int_values[0] = status.tx_count;
2015 keys[1] = "stp_rx_count";
2016 int_values[1] = status.rx_count;
2017 keys[2] = "stp_error_count";
2018 int_values[2] = status.error_count;
2019
2020 ovsrec_port_set_statistics(port->cfg, keys, int_values,
2021 ARRAY_SIZE(int_values));
21f7563c
JP
2022}
2023
3fe80505
BP
2024static bool
2025enable_system_stats(const struct ovsrec_open_vswitch *cfg)
2026{
a699f614 2027 return smap_get_bool(&cfg->other_config, "enable-statistics", false);
3fe80505
BP
2028}
2029
ce887677 2030static void
35a22d8c 2031reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
ce887677 2032{
35a22d8c 2033 bool enable = enable_system_stats(cfg);
ce887677 2034
35a22d8c
BP
2035 system_stats_enable(enable);
2036 if (!enable) {
2037 ovsrec_open_vswitch_set_statistics(cfg, NULL);
3fe80505 2038 }
35a22d8c
BP
2039}
2040
2041static void
2042run_system_stats(void)
2043{
2044 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2045 struct smap *stats;
2046
2047 stats = system_stats_run();
2048 if (stats && cfg) {
2049 struct ovsdb_idl_txn *txn;
2050 struct ovsdb_datum datum;
2051
2052 txn = ovsdb_idl_txn_create(idl);
2053 ovsdb_datum_from_smap(&datum, stats);
2054 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
2055 &datum);
2056 ovsdb_idl_txn_commit(txn);
2057 ovsdb_idl_txn_destroy(txn);
ce887677 2058
35a22d8c
BP
2059 free(stats);
2060 }
ce887677
BP
2061}
2062
bffc0589 2063static inline const char *
f4f1ea7e 2064ofp12_controller_role_to_str(enum ofp12_controller_role role)
bffc0589
AE
2065{
2066 switch (role) {
f4f1ea7e 2067 case OFPCR12_ROLE_EQUAL:
bffc0589 2068 return "other";
f4f1ea7e 2069 case OFPCR12_ROLE_MASTER:
bffc0589 2070 return "master";
f4f1ea7e 2071 case OFPCR12_ROLE_SLAVE:
bffc0589 2072 return "slave";
f4f1ea7e 2073 case OFPCR12_ROLE_NOCHANGE:
bffc0589
AE
2074 default:
2075 return "*** INVALID ROLE ***";
2076 }
2077}
2078
2079static void
5d279086 2080refresh_controller_status(void)
bffc0589 2081{
5d279086 2082 struct bridge *br;
bffc0589
AE
2083 struct shash info;
2084 const struct ovsrec_controller *cfg;
2085
5d279086
AE
2086 shash_init(&info);
2087
2088 /* Accumulate status for controllers on all bridges. */
2089 HMAP_FOR_EACH (br, node, &all_bridges) {
2090 ofproto_get_ofproto_controller_info(br->ofproto, &info);
2091 }
bffc0589 2092
5d279086 2093 /* Update each controller in the database with current status. */
bffc0589 2094 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
eb9b8307
AE
2095 struct ofproto_controller_info *cinfo =
2096 shash_find_data(&info, cfg->target);
2097
2098 if (cinfo) {
a699f614
EJ
2099 struct smap smap = SMAP_INITIALIZER(&smap);
2100 const char **values = cinfo->pairs.values;
2101 const char **keys = cinfo->pairs.keys;
2102 size_t i;
2103
2104 for (i = 0; i < cinfo->pairs.n; i++) {
2105 smap_add(&smap, keys[i], values[i]);
2106 }
2107
eb9b8307 2108 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
f4f1ea7e
BP
2109 ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
2110 cinfo->role));
a699f614
EJ
2111 ovsrec_controller_set_status(cfg, &smap);
2112 smap_destroy(&smap);
eb9b8307
AE
2113 } else {
2114 ovsrec_controller_set_is_connected(cfg, false);
2115 ovsrec_controller_set_role(cfg, NULL);
a699f614 2116 ovsrec_controller_set_status(cfg, NULL);
eb9b8307 2117 }
bffc0589
AE
2118 }
2119
2120 ofproto_free_ofproto_controller_info(&info);
2121}
b40dcae7
BP
2122\f
2123/* "Instant" stats.
2124 *
2125 * Some information in the database must be kept as up-to-date as possible to
2126 * allow controllers to respond rapidly to network outages. We call these
2127 * statistics "instant" stats.
2128 *
2129 * We wish to update these statistics every INSTANT_INTERVAL_MSEC milliseconds,
2130 * assuming that they've changed. The only means we have to determine whether
2131 * they have changed are:
2132 *
2133 * - Try to commit changes to the database. If nothing changed, then
2134 * ovsdb_idl_txn_commit() returns TXN_UNCHANGED, otherwise some other
2135 * value.
2136 *
2137 * - instant_stats_run() is called late in the run loop, after anything that
2138 * might change any of the instant stats.
2139 *
2140 * We use these two facts together to avoid waking the process up every
2141 * INSTANT_INTERVAL_MSEC whether there is any change or not.
2142 */
2143
2144/* Minimum interval between writing updates to the instant stats to the
2145 * database. */
2146#define INSTANT_INTERVAL_MSEC 100
2147
2148/* Current instant stats database transaction, NULL if there is no ongoing
2149 * transaction. */
2150static struct ovsdb_idl_txn *instant_txn;
2151
2152/* Next time (in msec on monotonic clock) at which we will update the instant
2153 * stats. */
2154static long long int instant_next_txn = LLONG_MIN;
2155
2156/* True if the run loop has run since we last saw that the instant stats were
2157 * unchanged, that is, this is true if we need to wake up at 'instant_next_txn'
2158 * to refresh the instant stats. */
2159static bool instant_stats_could_have_changed;
bffc0589 2160
8f3fe844 2161static void
b40dcae7 2162instant_stats_run(void)
8f3fe844 2163{
b40dcae7 2164 enum ovsdb_idl_txn_status status;
8f3fe844 2165
b40dcae7
BP
2166 instant_stats_could_have_changed = true;
2167
2168 if (!instant_txn) {
8f3fe844
EJ
2169 struct bridge *br;
2170
b40dcae7
BP
2171 if (time_msec() < instant_next_txn) {
2172 return;
2173 }
2174 instant_next_txn = time_msec() + INSTANT_INTERVAL_MSEC;
8f3fe844 2175
b40dcae7 2176 instant_txn = ovsdb_idl_txn_create(idl);
8f3fe844
EJ
2177 HMAP_FOR_EACH (br, node, &all_bridges) {
2178 struct iface *iface;
353079d0
EJ
2179 struct port *port;
2180
2181 br_refresh_stp_status(br);
2182
2183 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2184 port_refresh_stp_status(port);
2185 }
8f3fe844
EJ
2186
2187 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
353079d0 2188 enum netdev_flags flags;
ccc09689 2189 struct smap smap;
353079d0
EJ
2190 const char *link_state;
2191 int64_t link_resets;
2192 int current, error;
2193
2194 if (iface_is_synthetic(iface)) {
2195 continue;
2196 }
2197
2198 current = ofproto_port_is_lacp_current(br->ofproto,
2199 iface->ofp_port);
2200 if (current >= 0) {
2201 bool bl = current;
2202 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2203 } else {
2204 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2205 }
2206
2207 error = netdev_get_flags(iface->netdev, &flags);
2208 if (!error) {
2209 const char *state = flags & NETDEV_UP ? "up" : "down";
2210 ovsrec_interface_set_admin_state(iface->cfg, state);
2211 } else {
2212 ovsrec_interface_set_admin_state(iface->cfg, NULL);
2213 }
2214
2215 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2216 ovsrec_interface_set_link_state(iface->cfg, link_state);
2217
2218 link_resets = netdev_get_carrier_resets(iface->netdev);
2219 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2220
8f3fe844 2221 iface_refresh_cfm_stats(iface);
ccc09689
EJ
2222
2223 smap_init(&smap);
2224 if (!ofproto_port_get_bfd_status(br->ofproto, iface->ofp_port,
2225 &smap)) {
2226 ovsrec_interface_set_bfd_status(iface->cfg, &smap);
2227 smap_destroy(&smap);
2228 }
8f3fe844
EJ
2229 }
2230 }
2231 }
2232
b40dcae7
BP
2233 status = ovsdb_idl_txn_commit(instant_txn);
2234 if (status != TXN_INCOMPLETE) {
2235 ovsdb_idl_txn_destroy(instant_txn);
2236 instant_txn = NULL;
2237 }
2238 if (status == TXN_UNCHANGED) {
2239 instant_stats_could_have_changed = false;
8f3fe844
EJ
2240 }
2241}
2242
b40dcae7
BP
2243static void
2244instant_stats_wait(void)
2245{
2246 if (instant_txn) {
2247 ovsdb_idl_txn_wait(instant_txn);
2248 } else if (instant_stats_could_have_changed) {
2249 poll_timer_wait_until(instant_next_txn);
2250 }
2251}
2252\f
5fcc0d00
BP
2253/* Performs periodic activity required by bridges that needs to be done with
2254 * the least possible latency.
2255 *
2256 * It makes sense to call this function a couple of times per poll loop, to
2257 * provide a significant performance boost on some benchmarks with ofprotos
2258 * that use the ofproto-dpif implementation. */
2259void
2260bridge_run_fast(void)
2261{
11a574a7
JP
2262 struct sset types;
2263 const char *type;
5fcc0d00
BP
2264 struct bridge *br;
2265
11a574a7
JP
2266 sset_init(&types);
2267 ofproto_enumerate_types(&types);
2268 SSET_FOR_EACH (type, &types) {
2269 ofproto_type_run_fast(type);
2270 }
2271 sset_destroy(&types);
2272
5fcc0d00
BP
2273 HMAP_FOR_EACH (br, node, &all_bridges) {
2274 ofproto_run_fast(br->ofproto);
2275 }
2276}
2277
c5187f17 2278void
064af421
BP
2279bridge_run(void)
2280{
8c0f519f 2281 static struct ovsrec_open_vswitch null_cfg;
d54ff998 2282 const struct ovsrec_open_vswitch *cfg;
bae7208e 2283 struct ovsdb_idl_txn *reconf_txn = NULL;
11a574a7
JP
2284 struct sset types;
2285 const char *type;
d54ff998 2286
52a90c29 2287 bool vlan_splinters_changed;
c5187f17 2288 struct bridge *br;
064af421 2289
8c0f519f 2290 ovsrec_open_vswitch_init(&null_cfg);
edce886c 2291
06b6d651 2292 /* (Re)configure if necessary. */
bae7208e
EJ
2293 if (!reconfiguring) {
2294 ovsdb_idl_run(idl);
06b6d651 2295
bae7208e
EJ
2296 if (ovsdb_idl_is_lock_contended(idl)) {
2297 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2298 struct bridge *br, *next_br;
06b6d651 2299
bae7208e 2300 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
f9043393
JP
2301 "disabling this process (pid %ld) until it goes away",
2302 (long int) getpid());
bae7208e
EJ
2303
2304 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2305 bridge_destroy(br);
2306 }
9f27568d
GS
2307 /* Since we will not be running system_stats_run() in this process
2308 * with the current situation of multiple ovs-vswitchd daemons,
2309 * disable system stats collection. */
2310 system_stats_enable(false);
bae7208e
EJ
2311 return;
2312 } else if (!ovsdb_idl_has_lock(idl)) {
2313 return;
06b6d651 2314 }
06b6d651
BP
2315 }
2316 cfg = ovsrec_open_vswitch_first(idl);
2317
b0408fca
JP
2318 /* Initialize the ofproto library. This only needs to run once, but
2319 * it must be done after the configuration is set. If the
2320 * initialization has already occurred, bridge_init_ofproto()
2321 * returns immediately. */
2322 bridge_init_ofproto(cfg);
2323
11a574a7
JP
2324 /* Let each datapath type do the work that it needs to do. */
2325 sset_init(&types);
2326 ofproto_enumerate_types(&types);
2327 SSET_FOR_EACH (type, &types) {
2328 ofproto_type_run(type);
2329 }
2330 sset_destroy(&types);
2331
c5187f17 2332 /* Let each bridge do the work that it needs to do. */
764072fd 2333 HMAP_FOR_EACH (br, node, &all_bridges) {
5fcc0d00 2334 ofproto_run(br->ofproto);
c5187f17
BP
2335 }
2336
d6da96ce
BP
2337 /* Re-configure SSL. We do this on every trip through the main loop,
2338 * instead of just when the database changes, because the contents of the
2339 * key and certificate files can change without the database changing.
2340 *
2341 * We do this before bridge_reconfigure() because that function might
2342 * initiate SSL connections and thus requires SSL to be configured. */
2343 if (cfg && cfg->ssl) {
2344 const struct ovsrec_ssl *ssl = cfg->ssl;
2345
2346 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2347 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2348 }
bf8f2167 2349
bae7208e
EJ
2350 if (!reconfiguring) {
2351 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2352 * usage has changed. */
2353 vlan_splinters_changed = false;
2354 if (vlan_splinters_enabled_anywhere) {
2355 HMAP_FOR_EACH (br, node, &all_bridges) {
2356 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2357 vlan_splinters_changed = true;
2358 break;
2359 }
2360 }
2361 }
2362
2363 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2364 idl_seqno = ovsdb_idl_get_seqno(idl);
2365 if (cfg) {
2366 reconf_txn = ovsdb_idl_txn_create(idl);
2367 bridge_reconfigure(cfg);
2368 } else {
2369 /* We still need to reconfigure to avoid dangling pointers to
2370 * now-destroyed ovsrec structures inside bridge data. */
2371 bridge_reconfigure(&null_cfg);
52a90c29
BP
2372 }
2373 }
2374 }
2375
bae7208e 2376 if (reconfiguring) {
ff02e9a5
BP
2377 if (!reconf_txn) {
2378 reconf_txn = ovsdb_idl_txn_create(idl);
2379 }
2380
2381 if (bridge_reconfigure_continue(cfg ? cfg : &null_cfg)) {
2382 reconfiguring = false;
2383
2384 if (cfg) {
bae7208e
EJ
2385 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2386 }
ff02e9a5
BP
2387
2388 /* If we are completing our initial configuration for this run
2389 * of ovs-vswitchd, then keep the transaction around to monitor
2390 * it for completion. */
2391 if (!initial_config_done) {
2392 initial_config_done = true;
2393 daemonize_txn = reconf_txn;
2394 reconf_txn = NULL;
2395 }
064af421
BP
2396 }
2397 }
018f1525 2398
bae7208e
EJ
2399 if (reconf_txn) {
2400 ovsdb_idl_txn_commit(reconf_txn);
2401 ovsdb_idl_txn_destroy(reconf_txn);
2402 reconf_txn = NULL;
2403 }
2404
63ff04e8
BP
2405 if (daemonize_txn) {
2406 enum ovsdb_idl_txn_status status = ovsdb_idl_txn_commit(daemonize_txn);
2407 if (status != TXN_INCOMPLETE) {
2408 ovsdb_idl_txn_destroy(daemonize_txn);
2409 daemonize_txn = NULL;
2410
2411 /* ovs-vswitchd has completed initialization, so allow the
2412 * process that forked us to exit successfully. */
2413 daemonize_complete();
2414
2415 VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
2416 }
2417 }
2418
35a22d8c
BP
2419 /* Refresh interface and mirror stats if necessary. */
2420 if (time_msec() >= iface_stats_timer) {
ce887677
BP
2421 if (cfg) {
2422 struct ovsdb_idl_txn *txn;
018f1525 2423
ce887677 2424 txn = ovsdb_idl_txn_create(idl);
764072fd 2425 HMAP_FOR_EACH (br, node, &all_bridges) {
8052fb14 2426 struct port *port;
9d24de3b 2427 struct mirror *m;
018f1525 2428
8052fb14 2429 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
83db7968 2430 struct iface *iface;
018f1525 2431
83db7968 2432 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
ce887677 2433 iface_refresh_stats(iface);
ea763e0e 2434 iface_refresh_status(iface);
ce887677 2435 }
018f1525 2436 }
9d24de3b
JP
2437
2438 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2439 mirror_refresh_stats(m);
2440 }
2441
018f1525 2442 }
5d279086 2443 refresh_controller_status();
ce887677
BP
2444 ovsdb_idl_txn_commit(txn);
2445 ovsdb_idl_txn_destroy(txn); /* XXX */
018f1525 2446 }
018f1525 2447
35a22d8c 2448 iface_stats_timer = time_msec() + IFACE_STATS_INTERVAL;
018f1525 2449 }
6586adf5 2450
35a22d8c 2451 run_system_stats();
b40dcae7 2452 instant_stats_run();
064af421
BP
2453}
2454
2455void
2456bridge_wait(void)
2457{
11a574a7
JP
2458 struct sset types;
2459 const char *type;
2460
c5187f17 2461 ovsdb_idl_wait(idl);
63ff04e8
BP
2462 if (daemonize_txn) {
2463 ovsdb_idl_txn_wait(daemonize_txn);
2464 }
c7e7bb21 2465
bae7208e 2466 if (reconfiguring) {
c7e7bb21
EJ
2467 poll_immediate_wake();
2468 }
2469
11a574a7
JP
2470 sset_init(&types);
2471 ofproto_enumerate_types(&types);
2472 SSET_FOR_EACH (type, &types) {
2473 ofproto_type_wait(type);
2474 }
2475 sset_destroy(&types);
2476
06b6d651
BP
2477 if (!hmap_is_empty(&all_bridges)) {
2478 struct bridge *br;
6586adf5 2479
06b6d651
BP
2480 HMAP_FOR_EACH (br, node, &all_bridges) {
2481 ofproto_wait(br->ofproto);
2482 }
35a22d8c 2483 poll_timer_wait_until(iface_stats_timer);
6586adf5 2484 }
35a22d8c
BP
2485
2486 system_stats_wait();
b40dcae7 2487 instant_stats_wait();
064af421 2488}
0d085684
BP
2489
2490/* Adds some memory usage statistics for bridges into 'usage', for use with
2491 * memory_report(). */
2492void
2493bridge_get_memory_usage(struct simap *usage)
2494{
2495 struct bridge *br;
2496
2497 HMAP_FOR_EACH (br, node, &all_bridges) {
2498 ofproto_get_memory_usage(br->ofproto, usage);
2499 }
2500}
8c4c1387 2501\f
e8fe3026
EJ
2502/* QoS unixctl user interface functions. */
2503
2504struct qos_unixctl_show_cbdata {
2505 struct ds *ds;
2506 struct iface *iface;
2507};
2508
2509static void
2510qos_unixctl_show_cb(unsigned int queue_id,
79f1cbe9 2511 const struct smap *details,
e8fe3026
EJ
2512 void *aux)
2513{
2514 struct qos_unixctl_show_cbdata *data = aux;
2515 struct ds *ds = data->ds;
2516 struct iface *iface = data->iface;
2517 struct netdev_queue_stats stats;
79f1cbe9 2518 struct smap_node *node;
e8fe3026
EJ
2519 int error;
2520
2521 ds_put_cstr(ds, "\n");
2522 if (queue_id) {
2523 ds_put_format(ds, "Queue %u:\n", queue_id);
2524 } else {
2525 ds_put_cstr(ds, "Default:\n");
2526 }
2527
79f1cbe9
EJ
2528 SMAP_FOR_EACH (node, details) {
2529 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
e8fe3026
EJ
2530 }
2531
2532 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2533 if (!error) {
2534 if (stats.tx_packets != UINT64_MAX) {
2535 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2536 }
2537
2538 if (stats.tx_bytes != UINT64_MAX) {
2539 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2540 }
2541
2542 if (stats.tx_errors != UINT64_MAX) {
2543 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2544 }
2545 } else {
2546 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2547 queue_id, strerror(error));
2548 }
2549}
2550
2551static void
0e15264f
BP
2552qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2553 const char *argv[], void *aux OVS_UNUSED)
e8fe3026
EJ
2554{
2555 struct ds ds = DS_EMPTY_INITIALIZER;
79f1cbe9 2556 struct smap smap = SMAP_INITIALIZER(&smap);
e8fe3026
EJ
2557 struct iface *iface;
2558 const char *type;
79f1cbe9 2559 struct smap_node *node;
e8fe3026
EJ
2560 struct qos_unixctl_show_cbdata data;
2561 int error;
2562
0e15264f 2563 iface = iface_find(argv[1]);
e8fe3026 2564 if (!iface) {
bde9f75d 2565 unixctl_command_reply_error(conn, "no such interface");
e8fe3026
EJ
2566 return;
2567 }
2568
79f1cbe9 2569 netdev_get_qos(iface->netdev, &type, &smap);
e8fe3026
EJ
2570
2571 if (*type != '\0') {
2572 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2573
79f1cbe9
EJ
2574 SMAP_FOR_EACH (node, &smap) {
2575 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
e8fe3026
EJ
2576 }
2577
2578 data.ds = &ds;
2579 data.iface = iface;
2580 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2581
2582 if (error) {
2583 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2584 }
bde9f75d 2585 unixctl_command_reply(conn, ds_cstr(&ds));
e8fe3026
EJ
2586 } else {
2587 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
bde9f75d 2588 unixctl_command_reply_error(conn, ds_cstr(&ds));
e8fe3026
EJ
2589 }
2590
79f1cbe9 2591 smap_destroy(&smap);
e8fe3026
EJ
2592 ds_destroy(&ds);
2593}
2594\f
064af421 2595/* Bridge reconfiguration functions. */
66da9bef 2596static void
1a6f1e2a 2597bridge_create(const struct ovsrec_bridge *br_cfg)
064af421
BP
2598{
2599 struct bridge *br;
064af421 2600
cb22974d 2601 ovs_assert(!bridge_lookup(br_cfg->name));
ec6fde61 2602 br = xzalloc(sizeof *br);
064af421 2603
1a6f1e2a 2604 br->name = xstrdup(br_cfg->name);
f79e673f 2605 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
1a6f1e2a 2606 br->cfg = br_cfg;
e3f55cb8
BP
2607
2608 /* Derive the default Ethernet address from the bridge's UUID. This should
2609 * be unique and it will be stable between ovs-vswitchd runs. */
2610 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2611 eth_addr_mark_random(br->default_ea);
064af421 2612
8052fb14 2613 hmap_init(&br->ports);
d9a8717a 2614 hmap_init(&br->ifaces);
ebea37cc 2615 hmap_init(&br->iface_by_name);
fa066f01 2616 hmap_init(&br->mirrors);
4a1ee6ae 2617
bae7208e
EJ
2618 hmap_init(&br->if_cfg_todo);
2619 list_init(&br->ofpp_garbage);
2620
764072fd 2621 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
064af421
BP
2622}
2623
2624static void
2625bridge_destroy(struct bridge *br)
2626{
2627 if (br) {
fa066f01
BP
2628 struct mirror *mirror, *next_mirror;
2629 struct port *port, *next_port;
bae7208e
EJ
2630 struct if_cfg *if_cfg, *next_if_cfg;
2631 struct ofpp_garbage *garbage, *next_garbage;
064af421 2632
fa066f01 2633 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
8052fb14 2634 port_destroy(port);
064af421 2635 }
fa066f01
BP
2636 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2637 mirror_destroy(mirror);
f76e2dfc 2638 }
bae7208e
EJ
2639 HMAP_FOR_EACH_SAFE (if_cfg, next_if_cfg, hmap_node, &br->if_cfg_todo) {
2640 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
2641 free(if_cfg);
2642 }
2643 LIST_FOR_EACH_SAFE (garbage, next_garbage, list_node,
2644 &br->ofpp_garbage) {
2645 list_remove(&garbage->list_node);
2646 free(garbage);
2647 }
2648
764072fd 2649 hmap_remove(&all_bridges, &br->node);
6d6ab93e 2650 ofproto_destroy(br->ofproto);
d9a8717a 2651 hmap_destroy(&br->ifaces);
8052fb14 2652 hmap_destroy(&br->ports);
ebea37cc 2653 hmap_destroy(&br->iface_by_name);
fa066f01 2654 hmap_destroy(&br->mirrors);
bae7208e 2655 hmap_destroy(&br->if_cfg_todo);
064af421 2656 free(br->name);
66da9bef 2657 free(br->type);
064af421
BP
2658 free(br);
2659 }
2660}
2661
2662static struct bridge *
2663bridge_lookup(const char *name)
2664{
2665 struct bridge *br;
2666
764072fd 2667 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
064af421
BP
2668 if (!strcmp(br->name, name)) {
2669 return br;
2670 }
2671 }
2672 return NULL;
2673}
2674
4f2cad2c
JP
2675/* Handle requests for a listing of all flows known by the OpenFlow
2676 * stack, including those normally hidden. */
2677static void
0e15264f
BP
2678bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2679 const char *argv[], void *aux OVS_UNUSED)
4f2cad2c
JP
2680{
2681 struct bridge *br;
2682 struct ds results;
d295e8e9 2683
0e15264f 2684 br = bridge_lookup(argv[1]);
4f2cad2c 2685 if (!br) {
bde9f75d 2686 unixctl_command_reply_error(conn, "Unknown bridge");
4f2cad2c
JP
2687 return;
2688 }
2689
2690 ds_init(&results);
2691 ofproto_get_all_flows(br->ofproto, &results);
2692
bde9f75d 2693 unixctl_command_reply(conn, ds_cstr(&results));
4f2cad2c
JP
2694 ds_destroy(&results);
2695}
2696
fa05809b
BP
2697/* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2698 * connections and reconnect. If BRIDGE is not specified, then all bridges
2699 * drop their controller connections and reconnect. */
2700static void
0e15264f
BP
2701bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2702 const char *argv[], void *aux OVS_UNUSED)
fa05809b
BP
2703{
2704 struct bridge *br;
0e15264f
BP
2705 if (argc > 1) {
2706 br = bridge_lookup(argv[1]);
fa05809b 2707 if (!br) {
bde9f75d 2708 unixctl_command_reply_error(conn, "Unknown bridge");
fa05809b
BP
2709 return;
2710 }
2711 ofproto_reconnect_controllers(br->ofproto);
2712 } else {
764072fd 2713 HMAP_FOR_EACH (br, node, &all_bridges) {
fa05809b
BP
2714 ofproto_reconnect_controllers(br->ofproto);
2715 }
2716 }
bde9f75d 2717 unixctl_command_reply(conn, NULL);
fa05809b
BP
2718}
2719
76ce9432 2720static size_t
1a048029 2721bridge_get_controllers(const struct bridge *br,
76ce9432 2722 struct ovsrec_controller ***controllersp)
064af421 2723{
76ce9432
BP
2724 struct ovsrec_controller **controllers;
2725 size_t n_controllers;
064af421 2726
1a048029
JP
2727 controllers = br->cfg->controller;
2728 n_controllers = br->cfg->n_controller;
76343538 2729
76ce9432
BP
2730 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2731 controllers = NULL;
2732 n_controllers = 0;
064af421 2733 }
76343538 2734
76ce9432
BP
2735 if (controllersp) {
2736 *controllersp = controllers;
2737 }
2738 return n_controllers;
064af421
BP
2739}
2740
bae7208e
EJ
2741static void
2742bridge_queue_if_cfg(struct bridge *br,
2743 const struct ovsrec_interface *cfg,
2744 const struct ovsrec_port *parent)
2745{
2746 struct if_cfg *if_cfg = xmalloc(sizeof *if_cfg);
2747
2748 if_cfg->cfg = cfg;
2749 if_cfg->parent = parent;
558e2cc5 2750 if_cfg->ofport = iface_pick_ofport(cfg);
bae7208e
EJ
2751 hmap_insert(&br->if_cfg_todo, &if_cfg->hmap_node,
2752 hash_string(if_cfg->cfg->name, 0));
2753}
2754
2755/* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2756 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2757 * 'br' needs to complete its configuration. */
064af421 2758static void
52a90c29
BP
2759bridge_add_del_ports(struct bridge *br,
2760 const unsigned long int *splinter_vlans)
064af421 2761{
bae7208e 2762 struct shash_node *port_node;
8052fb14 2763 struct port *port, *next;
8052fb14 2764 struct shash new_ports;
6ae39834 2765 size_t i;
064af421 2766
cb22974d 2767 ovs_assert(hmap_is_empty(&br->if_cfg_todo));
bae7208e 2768
064af421 2769 /* Collect new ports. */
76343538
BP
2770 shash_init(&new_ports);
2771 for (i = 0; i < br->cfg->n_ports; i++) {
2772 const char *name = br->cfg->ports[i]->name;
2773 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2774 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2775 br->name, name);
2776 }
2777 }
b5827b24
BP
2778 if (bridge_get_controllers(br, NULL)
2779 && !shash_find(&new_ports, br->name)) {
cfea354b
BP
2780 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2781 br->name, br->name);
72865317 2782
a699f614
EJ
2783 ovsrec_interface_init(&br->synth_local_iface);
2784 ovsrec_port_init(&br->synth_local_port);
2785
cfea354b
BP
2786 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2787 br->synth_local_port.n_interfaces = 1;
2788 br->synth_local_port.name = br->name;
2789
2790 br->synth_local_iface.name = br->name;
66da9bef 2791 br->synth_local_iface.type = "internal";
cfea354b
BP
2792
2793 br->synth_local_ifacep = &br->synth_local_iface;
2794
2795 shash_add(&new_ports, br->name, &br->synth_local_port);
064af421 2796 }
064af421 2797
52a90c29
BP
2798 if (splinter_vlans) {
2799 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2800 }
2801
4a1ee6ae 2802 /* Get rid of deleted ports.
a70e4b2a 2803 * Get rid of deleted interfaces on ports that still exist. */
8052fb14 2804 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
66da9bef
BP
2805 port->cfg = shash_find_data(&new_ports, port->name);
2806 if (!port->cfg) {
4a1ee6ae
BP
2807 port_destroy(port);
2808 } else {
66da9bef 2809 port_del_ifaces(port);
064af421
BP
2810 }
2811 }
4a1ee6ae 2812
b54441b3
BP
2813 /* Update iface->cfg and iface->type in interfaces that still exist.
2814 * Add new interfaces to creation queue. */
bae7208e
EJ
2815 SHASH_FOR_EACH (port_node, &new_ports) {
2816 const struct ovsrec_port *port = port_node->data;
2817 size_t i;
2818
2819 for (i = 0; i < port->n_interfaces; i++) {
2820 const struct ovsrec_interface *cfg = port->interfaces[i];
2821 struct iface *iface = iface_lookup(br, cfg->name);
046f1f89 2822 const char *type = iface_get_type(cfg, br->cfg);
bae7208e
EJ
2823
2824 if (iface) {
2825 iface->cfg = cfg;
046f1f89 2826 iface->type = type;
0faed346
EJ
2827 } else if (!strcmp(type, "null")) {
2828 VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
2829 " may be removed in February 2013. Please email"
2830 " dev@openvswitch.org with concerns.",
2831 cfg->name);
2832 } else {
bae7208e
EJ
2833 bridge_queue_if_cfg(br, cfg, port);
2834 }
ceb4559f 2835 }
064af421 2836 }
bae7208e 2837
76343538 2838 shash_destroy(&new_ports);
064af421
BP
2839}
2840
7d674866
BP
2841/* Initializes 'oc' appropriately as a management service controller for
2842 * 'br'.
2843 *
2844 * The caller must free oc->target when it is no longer needed. */
2845static void
2846bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2847 struct ofproto_controller *oc)
2848{
b43c6fe2 2849 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
7d674866
BP
2850 oc->max_backoff = 0;
2851 oc->probe_interval = 60;
2852 oc->band = OFPROTO_OUT_OF_BAND;
7d674866
BP
2853 oc->rate_limit = 0;
2854 oc->burst_limit = 0;
9886b662 2855 oc->enable_async_msgs = true;
7d674866
BP
2856}
2857
2858/* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2859static void
2860bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2861 struct ofproto_controller *oc)
2862{
a699f614 2863 int dscp;
f125905c 2864
7d674866
BP
2865 oc->target = c->target;
2866 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2867 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2868 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2869 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
7d674866
BP
2870 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2871 oc->burst_limit = (c->controller_burst_limit
2872 ? *c->controller_burst_limit : 0);
9886b662
BP
2873 oc->enable_async_msgs = (!c->enable_async_messages
2874 || *c->enable_async_messages);
a699f614
EJ
2875 dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
2876 if (dscp < 0 || dscp > 63) {
2877 dscp = DSCP_DEFAULT;
f125905c 2878 }
a699f614 2879 oc->dscp = dscp;
7d674866
BP
2880}
2881
2882/* Configures the IP stack for 'br''s local interface properly according to the
2883 * configuration in 'c'. */
2884static void
2885bridge_configure_local_iface_netdev(struct bridge *br,
2886 struct ovsrec_controller *c)
2887{
2888 struct netdev *netdev;
2889 struct in_addr mask, gateway;
2890
2891 struct iface *local_iface;
2892 struct in_addr ip;
2893
7d674866 2894 /* If there's no local interface or no IP address, give up. */
892815f5 2895 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
7d674866
BP
2896 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2897 return;
2898 }
2899
2900 /* Bring up the local interface. */
2901 netdev = local_iface->netdev;
4b609110 2902 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
7d674866
BP
2903
2904 /* Configure the IP address and netmask. */
2905 if (!c->local_netmask
2906 || !inet_aton(c->local_netmask, &mask)
2907 || !mask.s_addr) {
2908 mask.s_addr = guess_netmask(ip.s_addr);
2909 }
2910 if (!netdev_set_in4(netdev, ip, mask)) {
2911 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
ed36537e 2912 br->name, IP_ARGS(ip.s_addr), IP_ARGS(mask.s_addr));
7d674866
BP
2913 }
2914
2915 /* Configure the default gateway. */
2916 if (c->local_gateway
2917 && inet_aton(c->local_gateway, &gateway)
2918 && gateway.s_addr) {
2919 if (!netdev_add_router(netdev, gateway)) {
2920 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
ed36537e 2921 br->name, IP_ARGS(gateway.s_addr));
7d674866
BP
2922 }
2923 }
2924}
2925
cb4ef1ea
BP
2926/* Returns true if 'a' and 'b' are the same except that any number of slashes
2927 * in either string are treated as equal to any number of slashes in the other,
329e3462
PR
2928 * e.g. "x///y" is equal to "x/y".
2929 *
2930 * Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
2931 * bytes from 'a', the function considers this success. Specify 'b_stoplen' as
2932 * SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
2933 * 'b' against a prefix of 'a'.
2934 */
cb4ef1ea 2935static bool
329e3462 2936equal_pathnames(const char *a, const char *b, size_t b_stoplen)
cb4ef1ea 2937{
329e3462 2938 const char *b_start = b;
4a1d4e86
BP
2939 for (;;) {
2940 if (b - b_start >= b_stoplen) {
2941 return true;
2942 } else if (*a != *b) {
2943 return false;
2944 } else if (*a == '/') {
cb4ef1ea
BP
2945 a += strspn(a, "/");
2946 b += strspn(b, "/");
2947 } else if (*a == '\0') {
2948 return true;
2949 } else {
2950 a++;
2951 b++;
2952 }
2953 }
cb4ef1ea
BP
2954}
2955
064af421 2956static void
fa066f01
BP
2957bridge_configure_remotes(struct bridge *br,
2958 const struct sockaddr_in *managers, size_t n_managers)
064af421 2959{
a699f614 2960 bool disable_in_band;
b1da6250 2961
76ce9432
BP
2962 struct ovsrec_controller **controllers;
2963 size_t n_controllers;
7d674866 2964
66da9bef 2965 enum ofproto_fail_mode fail_mode;
7d674866
BP
2966
2967 struct ofproto_controller *ocs;
2968 size_t n_ocs;
2969 size_t i;
064af421 2970
8731b2b6 2971 /* Check if we should disable in-band control on this bridge. */
a699f614
EJ
2972 disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
2973 false);
8731b2b6 2974
b1da6250 2975 /* Set OpenFlow queue ID for in-band control. */
a699f614
EJ
2976 ofproto_set_in_band_queue(br->ofproto,
2977 smap_get_int(&br->cfg->other_config,
2978 "in-band-queue", -1));
b1da6250 2979
8731b2b6
JP
2980 if (disable_in_band) {
2981 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2982 } else {
2983 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2984 }
cd11000b 2985
1a048029 2986 n_controllers = bridge_get_controllers(br, &controllers);
064af421 2987
7d674866
BP
2988 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2989 n_ocs = 0;
064af421 2990
7d674866
BP
2991 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2992 for (i = 0; i < n_controllers; i++) {
2993 struct ovsrec_controller *c = controllers[i];
76ce9432 2994
7d674866
BP
2995 if (!strncmp(c->target, "punix:", 6)
2996 || !strncmp(c->target, "unix:", 5)) {
2997 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
cb4ef1ea
BP
2998 char *whitelist;
2999
329e3462
PR
3000 if (!strncmp(c->target, "unix:", 5)) {
3001 /* Connect to a listening socket */
3002 whitelist = xasprintf("unix:%s/", ovs_rundir());
2c487bc8
PR
3003 if (strchr(c->target, '/') &&
3004 !equal_pathnames(c->target, whitelist,
3005 strlen(whitelist))) {
3006 /* Absolute path specified, but not in ovs_rundir */
329e3462
PR
3007 VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
3008 "controller \"%s\" due to possibility for "
3009 "remote exploit. Instead, specify socket "
3010 "in whitelisted \"%s\" or connect to "
3011 "\"unix:%s/%s.mgmt\" (which is always "
3012 "available without special configuration).",
3013 br->name, c->target, whitelist,
cb4ef1ea 3014 ovs_rundir(), br->name);
329e3462
PR
3015 free(whitelist);
3016 continue;
3017 }
3018 } else {
3019 whitelist = xasprintf("punix:%s/%s.controller",
3020 ovs_rundir(), br->name);
3021 if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
3022 /* Prevent remote ovsdb-server users from accessing
3023 * arbitrary Unix domain sockets and overwriting arbitrary
3024 * local files. */
3025 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
3026 "controller \"%s\" due to possibility of "
3027 "overwriting local files. Instead, specify "
3028 "whitelisted \"%s\" or connect to "
3029 "\"unix:%s/%s.mgmt\" (which is always "
3030 "available without special configuration).",
3031 br->name, c->target, whitelist,
3032 ovs_rundir(), br->name);
3033 free(whitelist);
3034 continue;
3035 }
cb4ef1ea 3036 }
4d6fb5eb 3037
cb4ef1ea 3038 free(whitelist);
4d6fb5eb
EJ
3039 }
3040
7d674866 3041 bridge_configure_local_iface_netdev(br, c);
8731b2b6
JP
3042 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
3043 if (disable_in_band) {
3044 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
f620b43a 3045 }
8731b2b6 3046 n_ocs++;
be02e7c3 3047 }
be02e7c3 3048
7beaa082
SH
3049 ofproto_set_controllers(br->ofproto, ocs, n_ocs,
3050 bridge_get_allowed_versions(br));
7d674866
BP
3051 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
3052 free(ocs);
66da9bef
BP
3053
3054 /* Set the fail-mode. */
3055 fail_mode = !br->cfg->fail_mode
3056 || !strcmp(br->cfg->fail_mode, "standalone")
3057 ? OFPROTO_FAIL_STANDALONE
3058 : OFPROTO_FAIL_SECURE;
3059 ofproto_set_fail_mode(br->ofproto, fail_mode);
3060
3061 /* Configure OpenFlow controller connection snooping. */
3062 if (!ofproto_has_snoops(br->ofproto)) {
3063 struct sset snoops;
5827ce14 3064
66da9bef
BP
3065 sset_init(&snoops);
3066 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
3067 ovs_rundir(), br->name));
3068 ofproto_set_snoops(br->ofproto, &snoops);
3069 sset_destroy(&snoops);
064af421
BP
3070 }
3071}
254750ce
BP
3072
3073static void
3074bridge_configure_tables(struct bridge *br)
3075{
3076 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3077 int n_tables;
3078 int i, j;
3079
3080 n_tables = ofproto_get_n_tables(br->ofproto);
3081 j = 0;
3082 for (i = 0; i < n_tables; i++) {
3083 struct ofproto_table_settings s;
3084
3085 s.name = NULL;
3086 s.max_flows = UINT_MAX;
3087 s.groups = NULL;
3088 s.n_groups = 0;
3089
3090 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
3091 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
3092
3093 s.name = cfg->name;
3094 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
3095 s.max_flows = *cfg->flow_limit;
3096 }
3097 if (cfg->overflow_policy
3098 && !strcmp(cfg->overflow_policy, "evict")) {
3099 size_t k;
3100
3101 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
3102 for (k = 0; k < cfg->n_groups; k++) {
3103 const char *string = cfg->groups[k];
3104 char *msg;
3105
3106 msg = mf_parse_subfield__(&s.groups[k], &string);
3107 if (msg) {
3108 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
3109 "'groups' (%s)", br->name, i, msg);
3110 free(msg);
3111 } else if (*string) {
3112 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
3113 "element '%s' contains trailing garbage",
3114 br->name, i, cfg->groups[k]);
3115 } else {
3116 s.n_groups++;
3117 }
3118 }
3119 }
3120 }
3121
3122 ofproto_configure_table(br->ofproto, i, &s);
3123
3124 free(s.groups);
3125 }
3126 for (; j < br->cfg->n_flow_tables; j++) {
3127 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
3128 "%"PRId64" not supported by this datapath", br->name,
3129 br->cfg->key_flow_tables[j]);
3130 }
3131}
8b6ff729
BP
3132
3133static void
3134bridge_configure_dp_desc(struct bridge *br)
3135{
3136 ofproto_set_dp_desc(br->ofproto,
3137 smap_get(&br->cfg->other_config, "dp-desc"));
3138}
064af421 3139\f
fa066f01 3140/* Port functions. */
064af421 3141
f620b43a 3142static struct port *
fa066f01 3143port_create(struct bridge *br, const struct ovsrec_port *cfg)
064af421 3144{
f620b43a
BP
3145 struct port *port;
3146
3147 port = xzalloc(sizeof *port);
3148 port->bridge = br;
fa066f01
BP
3149 port->name = xstrdup(cfg->name);
3150 port->cfg = cfg;
f620b43a
BP
3151 list_init(&port->ifaces);
3152
3153 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
f620b43a 3154 return port;
064af421
BP
3155}
3156
fa066f01 3157/* Deletes interfaces from 'port' that are no longer configured for it. */
064af421 3158static void
fa066f01 3159port_del_ifaces(struct port *port)
064af421 3160{
f620b43a
BP
3161 struct iface *iface, *next;
3162 struct sset new_ifaces;
3163 size_t i;
064af421 3164
f620b43a
BP
3165 /* Collect list of new interfaces. */
3166 sset_init(&new_ifaces);
fa066f01
BP
3167 for (i = 0; i < port->cfg->n_interfaces; i++) {
3168 const char *name = port->cfg->interfaces[i]->name;
93f331d3 3169 const char *type = port->cfg->interfaces[i]->type;
00794817
BP
3170 if (strcmp(type, "null")) {
3171 sset_add(&new_ifaces, name);
3172 }
f620b43a 3173 }
064af421 3174
f620b43a
BP
3175 /* Get rid of deleted interfaces. */
3176 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3177 if (!sset_contains(&new_ifaces, iface->name)) {
3178 iface_destroy(iface);
064af421 3179 }
064af421 3180 }
f620b43a
BP
3181
3182 sset_destroy(&new_ifaces);
064af421
BP
3183}
3184
064af421
BP
3185static void
3186port_destroy(struct port *port)
3187{
3188 if (port) {
3189 struct bridge *br = port->bridge;
83db7968 3190 struct iface *iface, *next;
064af421 3191
fa066f01
BP
3192 if (br->ofproto) {
3193 ofproto_bundle_unregister(br->ofproto, port);
064af421
BP
3194 }
3195
83db7968
BP
3196 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3197 iface_destroy(iface);
064af421
BP
3198 }
3199
8052fb14 3200 hmap_remove(&br->ports, &port->hmap_node);
064af421
BP
3201 free(port->name);
3202 free(port);
064af421
BP
3203 }
3204}
3205
064af421
BP
3206static struct port *
3207port_lookup(const struct bridge *br, const char *name)
3208{
8052fb14
BP
3209 struct port *port;
3210
3211 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
3212 &br->ports) {
3213 if (!strcmp(port->name, name)) {
3214 return port;
3215 }
3216 }
3217 return NULL;
064af421
BP
3218}
3219
7a673515
BP
3220static bool
3221enable_lacp(struct port *port, bool *activep)
3222{
3223 if (!port->cfg->lacp) {
3224 /* XXX when LACP implementation has been sufficiently tested, enable by
3225 * default and make active on bonded ports. */
3226 return false;
3227 } else if (!strcmp(port->cfg->lacp, "off")) {
3228 return false;
3229 } else if (!strcmp(port->cfg->lacp, "active")) {
3230 *activep = true;
3231 return true;
3232 } else if (!strcmp(port->cfg->lacp, "passive")) {
3233 *activep = false;
3234 return true;
3235 } else {
3236 VLOG_WARN("port %s: unknown LACP mode %s",
3237 port->name, port->cfg->lacp);
3238 return false;
3239 }
3240}
3241
fa066f01
BP
3242static struct lacp_settings *
3243port_configure_lacp(struct port *port, struct lacp_settings *s)
5827ce14 3244{
e567943d 3245 const char *lacp_time, *system_id;
b5a25389 3246 int priority;
5827ce14 3247
fa066f01
BP
3248 if (!enable_lacp(port, &s->active)) {
3249 return NULL;
abd4a95d
EJ
3250 }
3251
fa066f01 3252 s->name = port->name;
e567943d 3253
a699f614 3254 system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
a9bf011b
EJ
3255 if (system_id) {
3256 if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
3257 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
3258 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
3259 " address.", port->name, system_id);
3260 return NULL;
3261 }
3262 } else {
e567943d
EJ
3263 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
3264 }
b5a25389 3265
69fdadb1
EJ
3266 if (eth_addr_is_zero(s->id)) {
3267 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
3268 return NULL;
3269 }
3270
b5a25389 3271 /* Prefer bondable links if unspecified. */
a699f614
EJ
3272 priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
3273 0);
fa066f01
BP
3274 s->priority = (priority > 0 && priority <= UINT16_MAX
3275 ? priority
3276 : UINT16_MAX - !list_is_short(&port->ifaces));
b5a25389 3277
a699f614
EJ
3278 lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
3279 s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
fa066f01
BP
3280 return s;
3281}
5827ce14 3282
fa066f01
BP
3283static void
3284iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
3285{
00794817 3286 int priority, portid, key;
5827ce14 3287
a699f614
EJ
3288 portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
3289 priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
3290 0);
3291 key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
fa066f01
BP
3292
3293 if (portid <= 0 || portid > UINT16_MAX) {
892815f5 3294 portid = iface->ofp_port;
5827ce14
EJ
3295 }
3296
fa066f01
BP
3297 if (priority <= 0 || priority > UINT16_MAX) {
3298 priority = UINT16_MAX;
3299 }
5827ce14 3300
00794817
BP
3301 if (key < 0 || key > UINT16_MAX) {
3302 key = 0;
5827ce14 3303 }
00794817 3304
fa066f01 3305 s->name = iface->name;
fa066f01
BP
3306 s->id = portid;
3307 s->priority = priority;
00794817 3308 s->key = key;
bb5bc6c0
BP
3309}
3310
c25c91fd 3311static void
df53d41c 3312port_configure_bond(struct port *port, struct bond_settings *s)
c25c91fd 3313{
f620b43a 3314 const char *detect_s;
7a673515 3315 struct iface *iface;
1670c579 3316 int miimon_interval;
c25c91fd 3317
fa066f01 3318 s->name = port->name;
4df08875 3319 s->balance = BM_AB;
4c57c3bc
EJ
3320 if (port->cfg->bond_mode) {
3321 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3322 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3323 port->name, port->cfg->bond_mode,
3324 bond_mode_to_string(s->balance));
3325 }
3326 } else {
3327 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3328
4df08875
EJ
3329 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3330 * active-backup. At some point we should remove this warning. */
4c57c3bc 3331 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
4df08875
EJ
3332 " in previous versions, the default bond_mode was"
3333 " balance-slb", port->name,
4c57c3bc 3334 bond_mode_to_string(s->balance));
f620b43a 3335 }
6c2d2a9f
BP
3336 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3337 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3338 "please use another bond type or disable flood_vlans",
3339 port->name);
3340 }
bb5bc6c0 3341
a699f614
EJ
3342 miimon_interval = smap_get_int(&port->cfg->other_config,
3343 "bond-miimon-interval", 0);
1670c579
EJ
3344 if (miimon_interval <= 0) {
3345 miimon_interval = 200;
f620b43a
BP
3346 }
3347
a699f614
EJ
3348 detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
3349 if (!detect_s || !strcmp(detect_s, "carrier")) {
1670c579
EJ
3350 miimon_interval = 0;
3351 } else if (strcmp(detect_s, "miimon")) {
3352 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3353 "defaulting to carrier", port->name, detect_s);
3354 miimon_interval = 0;
f620b43a
BP
3355 }
3356
fa066f01
BP
3357 s->up_delay = MAX(0, port->cfg->bond_updelay);
3358 s->down_delay = MAX(0, port->cfg->bond_downdelay);
a699f614
EJ
3359 s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
3360 s->rebalance_interval = smap_get_int(&port->cfg->other_config,
3361 "bond-rebalance-interval", 10000);
bc1b010c 3362 if (s->rebalance_interval && s->rebalance_interval < 1000) {
fa066f01 3363 s->rebalance_interval = 1000;
f620b43a
BP
3364 }
3365
fa066f01 3366 s->fake_iface = port->cfg->bond_fake_iface;
7a673515 3367
7a673515 3368 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1670c579 3369 netdev_set_miimon_interval(iface->netdev, miimon_interval);
064af421
BP
3370 }
3371}
06b592bc
EJ
3372
3373/* Returns true if 'port' is synthetic, that is, if we constructed it locally
3374 * instead of obtaining it from the database. */
3375static bool
3376port_is_synthetic(const struct port *port)
3377{
3378 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3379}
064af421
BP
3380\f
3381/* Interface functions. */
3382
05ba03e0
JP
3383static bool
3384iface_is_internal(const struct ovsrec_interface *iface,
3385 const struct ovsrec_bridge *br)
3386{
3387 /* The local port and "internal" ports are always "internal". */
3388 return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
3389}
3390
b54441b3
BP
3391/* Returns the correct network device type for interface 'iface' in bridge
3392 * 'br'. */
3393static const char *
3394iface_get_type(const struct ovsrec_interface *iface,
3395 const struct ovsrec_bridge *br)
3396{
b4f4b737
JP
3397 const char *type;
3398
3399 /* The local port always has type "internal". Other ports take
3400 * their type from the database and default to "system" if none is
3401 * specified. */
05ba03e0 3402 if (iface_is_internal(iface, br)) {
b4f4b737 3403 type = "internal";
acf60855 3404 } else {
b4f4b737 3405 type = iface->type[0] ? iface->type : "system";
acf60855 3406 }
b4f4b737
JP
3407
3408 return ofproto_port_open_type(br->datapath_type, type);
064af421
BP
3409}
3410
3411static void
3412iface_destroy(struct iface *iface)
3413{
3414 if (iface) {
3415 struct port *port = iface->port;
3416 struct bridge *br = port->bridge;
c17f0d5e 3417
892815f5
BP
3418 if (br->ofproto && iface->ofp_port >= 0) {
3419 ofproto_port_unregister(br->ofproto, iface->ofp_port);
5827ce14
EJ
3420 }
3421
892815f5
BP
3422 if (iface->ofp_port >= 0) {
3423 hmap_remove(&br->ifaces, &iface->ofp_port_node);
064af421
BP
3424 }
3425
83db7968 3426 list_remove(&iface->port_elem);
ebea37cc 3427 hmap_remove(&br->iface_by_name, &iface->name_node);
064af421 3428
0c6aea3f 3429 netdev_close(iface->netdev);
064af421 3430
a740f0de
JG
3431 free(iface->name);
3432 free(iface);
064af421
BP
3433 }
3434}
3435
3436static struct iface *
3437iface_lookup(const struct bridge *br, const char *name)
3438{
ebea37cc
BP
3439 struct iface *iface;
3440
3441 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3442 &br->iface_by_name) {
3443 if (!strcmp(iface->name, name)) {
3444 return iface;
3445 }
3446 }
3447
3448 return NULL;
064af421
BP
3449}
3450
e8fe3026
EJ
3451static struct iface *
3452iface_find(const char *name)
3453{
3454 const struct bridge *br;
3455
764072fd 3456 HMAP_FOR_EACH (br, node, &all_bridges) {
e8fe3026
EJ
3457 struct iface *iface = iface_lookup(br, name);
3458
3459 if (iface) {
3460 return iface;
3461 }
3462 }
3463 return NULL;
3464}
3465
bae7208e
EJ
3466static struct if_cfg *
3467if_cfg_lookup(const struct bridge *br, const char *name)
3468{
3469 struct if_cfg *if_cfg;
3470
3471 HMAP_FOR_EACH_WITH_HASH (if_cfg, hmap_node, hash_string(name, 0),
3472 &br->if_cfg_todo) {
3473 if (!strcmp(if_cfg->cfg->name, name)) {
3474 return if_cfg;
3475 }
3476 }
3477
3478 return NULL;
3479}
3480
064af421 3481static struct iface *
892815f5 3482iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
064af421 3483{
d9a8717a
BP
3484 struct iface *iface;
3485
892815f5
BP
3486 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
3487 hash_int(ofp_port, 0), &br->ifaces) {
3488 if (iface->ofp_port == ofp_port) {
d9a8717a
BP
3489 return iface;
3490 }
3491 }
3492 return NULL;
064af421 3493}
557d8e6c 3494
52df17e7
BP
3495/* Set Ethernet address of 'iface', if one is specified in the configuration
3496 * file. */
3497static void
3498iface_set_mac(struct iface *iface)
3499{
76343538 3500 uint8_t ea[ETH_ADDR_LEN];
52df17e7 3501
ede2fd6d
BP
3502 if (!strcmp(iface->type, "internal")
3503 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
892815f5 3504 if (iface->ofp_port == OFPP_LOCAL) {
ede2fd6d
BP
3505 VLOG_ERR("interface %s: ignoring mac in Interface record "
3506 "(use Bridge record to set local port's mac)",
3507 iface->name);
3508 } else if (eth_addr_is_multicast(ea)) {
52df17e7
BP
3509 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3510 iface->name);
52df17e7 3511 } else {
4d678233 3512 int error = netdev_set_etheraddr(iface->netdev, ea);
52df17e7
BP
3513 if (error) {
3514 VLOG_ERR("interface %s: setting MAC failed (%s)",
3515 iface->name, strerror(error));
3516 }
3517 }
3518 }
3519}
c1c9c9c4 3520
bcd49a45
BP
3521/* Sets the ofport column of 'if_cfg' to 'ofport'. */
3522static void
3523iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
3524{
cfea354b 3525 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
bcd49a45
BP
3526 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
3527 }
3528}
3529
3fc5a86a
BP
3530/* Clears all of the fields in 'if_cfg' that indicate interface status, and
3531 * sets the "ofport" field to -1.
3532 *
3533 * This is appropriate when 'if_cfg''s interface cannot be created or is
3534 * otherwise invalid. */
3535static void
3536iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3537{
3538 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
a699f614 3539 ovsrec_interface_set_status(if_cfg, NULL);
3fc5a86a
BP
3540 ovsrec_interface_set_admin_state(if_cfg, NULL);
3541 ovsrec_interface_set_duplex(if_cfg, NULL);
3542 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3543 ovsrec_interface_set_link_state(if_cfg, NULL);
df867eda 3544 ovsrec_interface_set_mac_in_use(if_cfg, NULL);
3fc5a86a
BP
3545 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3546 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
b9380396 3547 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3fc5a86a
BP
3548 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3549 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3550 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3551 }
3552}
3553
c1c9c9c4
BP
3554struct iface_delete_queues_cbdata {
3555 struct netdev *netdev;
44fca7f9 3556 const struct ovsdb_datum *queues;
c1c9c9c4
BP
3557};
3558
3559static bool
44fca7f9 3560queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
c1c9c9c4 3561{
44fca7f9 3562 union ovsdb_atom atom;
c1c9c9c4 3563
44fca7f9
BP
3564 atom.integer = target;
3565 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
c1c9c9c4
BP
3566}
3567
3568static void
3569iface_delete_queues(unsigned int queue_id,
79f1cbe9 3570 const struct smap *details OVS_UNUSED, void *cbdata_)
c1c9c9c4
BP
3571{
3572 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3573
44fca7f9 3574 if (!queue_ids_include(cbdata->queues, queue_id)) {
c1c9c9c4
BP
3575 netdev_delete_queue(cbdata->netdev, queue_id);
3576 }
3577}
3578
3579static void
66da9bef 3580iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
c1c9c9c4 3581{
8b36f51e
EJ
3582 struct ofpbuf queues_buf;
3583
3584 ofpbuf_init(&queues_buf, 0);
3585
daa8bd2b 3586 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
c1c9c9c4
BP
3587 netdev_set_qos(iface->netdev, NULL, NULL);
3588 } else {
3589 struct iface_delete_queues_cbdata cbdata;
6a6e60bd 3590 bool queue_zero;
c1c9c9c4
BP
3591 size_t i;
3592
3593 /* Configure top-level Qos for 'iface'. */
a699f614 3594 netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
c1c9c9c4
BP
3595
3596 /* Deconfigure queues that were deleted. */
3597 cbdata.netdev = iface->netdev;
44fca7f9
BP
3598 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3599 OVSDB_TYPE_UUID);
c1c9c9c4
BP
3600 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3601
3602 /* Configure queues for 'iface'. */
6a6e60bd 3603 queue_zero = false;
c1c9c9c4
BP
3604 for (i = 0; i < qos->n_queues; i++) {
3605 const struct ovsrec_queue *queue = qos->value_queues[i];
3606 unsigned int queue_id = qos->key_queues[i];
3607
6a6e60bd
BP
3608 if (queue_id == 0) {
3609 queue_zero = true;
3610 }
3611
8b36f51e
EJ
3612 if (queue->n_dscp == 1) {
3613 struct ofproto_port_queue *port_queue;
3614
3615 port_queue = ofpbuf_put_uninit(&queues_buf,
3616 sizeof *port_queue);
3617 port_queue->queue = queue_id;
3618 port_queue->dscp = queue->dscp[0];
3619 }
3620
a699f614 3621 netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
c1c9c9c4 3622 }
6a6e60bd 3623 if (!queue_zero) {
a699f614
EJ
3624 struct smap details;
3625
79f1cbe9 3626 smap_init(&details);
2c999774 3627 netdev_set_queue(iface->netdev, 0, &details);
79f1cbe9 3628 smap_destroy(&details);
6a6e60bd 3629 }
c1c9c9c4 3630 }
fa066f01 3631
8b36f51e
EJ
3632 if (iface->ofp_port >= 0) {
3633 const struct ofproto_port_queue *port_queues = queues_buf.data;
3634 size_t n_queues = queues_buf.size / sizeof *port_queues;
3635
3636 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3637 port_queues, n_queues);
3638 }
3639
fa066f01
BP
3640 netdev_set_policing(iface->netdev,
3641 iface->cfg->ingress_policing_rate,
3642 iface->cfg->ingress_policing_burst);
8b36f51e
EJ
3643
3644 ofpbuf_uninit(&queues_buf);
c1c9c9c4 3645}
b31bcf60
EJ
3646
3647static void
66da9bef 3648iface_configure_cfm(struct iface *iface)
b31bcf60 3649{
93b8df38 3650 const struct ovsrec_interface *cfg = iface->cfg;
a699f614 3651 const char *opstate_str;
189cb9e4 3652 const char *cfm_ccm_vlan;
a5610457 3653 struct cfm_settings s;
b363bae4 3654 struct smap netdev_args;
b31bcf60 3655
144216a3 3656 if (!cfg->n_cfm_mpid) {
892815f5 3657 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
b31bcf60
EJ
3658 return;
3659 }
3660
b363bae4
EJ
3661 s.check_tnl_key = false;
3662 smap_init(&netdev_args);
3663 if (!netdev_get_config(iface->netdev, &netdev_args)) {
3664 const char *key = smap_get(&netdev_args, "key");
3665 const char *in_key = smap_get(&netdev_args, "in_key");
3666
3667 s.check_tnl_key = (key && !strcmp(key, "flow"))
3668 || (in_key && !strcmp(in_key, "flow"));
3669 }
3670 smap_destroy(&netdev_args);
3671
a5610457 3672 s.mpid = *cfg->cfm_mpid;
a699f614
EJ
3673 s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
3674 cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
3675 s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
3676
a5610457
EJ
3677 if (s.interval <= 0) {
3678 s.interval = 1000;
b31bcf60 3679 }
b31bcf60 3680
a699f614
EJ
3681 if (!cfm_ccm_vlan) {
3682 s.ccm_vlan = 0;
3683 } else if (!strcasecmp("random", cfm_ccm_vlan)) {
189cb9e4
EJ
3684 s.ccm_vlan = CFM_RANDOM_VLAN;
3685 } else {
3686 s.ccm_vlan = atoi(cfm_ccm_vlan);
3687 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3688 s.ccm_vlan = 0;
3689 }
3690 }
3691
a699f614
EJ
3692 s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
3693 false);
ef9819b5 3694
a699f614
EJ
3695 opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
3696 s.opup = !opstate_str || !strcasecmp("up", opstate_str);
86dc6501 3697
a5610457 3698 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
b31bcf60 3699}
0b8024eb 3700
cfea354b
BP
3701/* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3702 * instead of obtaining it from the database. */
3703static bool
3704iface_is_synthetic(const struct iface *iface)
3705{
3706 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3707}
f125905c 3708
558e2cc5
GS
3709static int64_t
3710iface_pick_ofport(const struct ovsrec_interface *cfg)
3711{
3712 int64_t ofport = cfg->n_ofport ? *cfg->ofport : OFPP_NONE;
3713 return cfg->n_ofport_request ? *cfg->ofport_request : ofport;
3714}
3715
064af421
BP
3716\f
3717/* Port mirroring. */
3718
dd0d105c
BP
3719static struct mirror *
3720mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3721{
fa066f01 3722 struct mirror *m;
dd0d105c 3723
fa066f01
BP
3724 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3725 if (uuid_equals(uuid, &m->uuid)) {
dd0d105c
BP
3726 return m;
3727 }
3728 }
3729 return NULL;
3730}
3731
064af421 3732static void
fa066f01 3733bridge_configure_mirrors(struct bridge *br)
064af421 3734{
fa066f01
BP
3735 const struct ovsdb_datum *mc;
3736 unsigned long *flood_vlans;
3737 struct mirror *m, *next;
3738 size_t i;
064af421 3739
dd0d105c 3740 /* Get rid of deleted mirrors. */
fa066f01
BP
3741 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3742 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3743 union ovsdb_atom atom;
3744
3745 atom.uuid = m->uuid;
3746 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3747 mirror_destroy(m);
064af421
BP
3748 }
3749 }
3750
dd0d105c 3751 /* Add new mirrors and reconfigure existing ones. */
37e7f427 3752 for (i = 0; i < br->cfg->n_mirrors; i++) {
fa066f01 3753 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
dd0d105c 3754 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
fa066f01
BP
3755 if (!m) {
3756 m = mirror_create(br, cfg);
064af421 3757 }
9d24de3b
JP
3758 m->cfg = cfg;
3759 if (!mirror_configure(m)) {
fa066f01 3760 mirror_destroy(m);
064af421
BP
3761 }
3762 }
f2d7fd66 3763
8f30d09a 3764 /* Update flooded vlans (for RSPAN). */
fa066f01
BP
3765 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3766 br->cfg->n_flood_vlans);
3767 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3768 bitmap_free(flood_vlans);
064af421
BP
3769}
3770
fa066f01
BP
3771static struct mirror *
3772mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
064af421
BP
3773{
3774 struct mirror *m;
064af421 3775
fa066f01 3776 m = xzalloc(sizeof *m);
8bbc128e 3777 m->uuid = cfg->header_.uuid;
fa066f01 3778 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
064af421 3779 m->bridge = br;
dd0d105c 3780 m->name = xstrdup(cfg->name);
37e7f427 3781
fa066f01 3782 return m;
064af421
BP
3783}
3784
3785static void
3786mirror_destroy(struct mirror *m)
3787{
3788 if (m) {
3789 struct bridge *br = m->bridge;
064af421 3790
fa066f01
BP
3791 if (br->ofproto) {
3792 ofproto_mirror_unregister(br->ofproto, m);
064af421
BP
3793 }
3794
fa066f01 3795 hmap_remove(&br->mirrors, &m->hmap_node);
786880a5 3796 free(m->name);
064af421 3797 free(m);
064af421
BP
3798 }
3799}
3800
3801static void
fa066f01
BP
3802mirror_collect_ports(struct mirror *m,
3803 struct ovsrec_port **in_ports, int n_in_ports,
3804 void ***out_portsp, size_t *n_out_portsp)
064af421 3805{
fa066f01
BP
3806 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3807 size_t n_out_ports = 0;
064af421
BP
3808 size_t i;
3809
fa066f01
BP
3810 for (i = 0; i < n_in_ports; i++) {
3811 const char *name = in_ports[i]->name;
3812 struct port *port = port_lookup(m->bridge, name);
3813 if (port) {
3814 out_ports[n_out_ports++] = port;
064af421 3815 } else {
37e7f427
BP
3816 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3817 "port %s", m->bridge->name, m->name, name);
064af421
BP
3818 }
3819 }
fa066f01
BP
3820 *out_portsp = out_ports;
3821 *n_out_portsp = n_out_ports;
064af421
BP
3822}
3823
3824static bool
9d24de3b 3825mirror_configure(struct mirror *m)
064af421 3826{
9d24de3b 3827 const struct ovsrec_mirror *cfg = m->cfg;
fa066f01 3828 struct ofproto_mirror_settings s;
064af421 3829
dd0d105c
BP
3830 /* Set name. */
3831 if (strcmp(cfg->name, m->name)) {
3832 free(m->name);
3833 m->name = xstrdup(cfg->name);
3834 }
fa066f01 3835 s.name = m->name;
dd0d105c 3836
fa066f01 3837 /* Get output port or VLAN. */
37e7f427 3838 if (cfg->output_port) {
fa066f01 3839 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
abe529af 3840 if (!s.out_bundle) {
37e7f427
BP
3841 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3842 m->bridge->name, m->name);
fa066f01 3843 return false;
064af421 3844 }
fa066f01 3845 s.out_vlan = UINT16_MAX;
064af421 3846
37e7f427
BP
3847 if (cfg->output_vlan) {
3848 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3849 "output vlan; ignoring output vlan",
3850 m->bridge->name, m->name);
064af421 3851 }
37e7f427 3852 } else if (cfg->output_vlan) {
fa066f01
BP
3853 /* The database should prevent invalid VLAN values. */
3854 s.out_bundle = NULL;
3855 s.out_vlan = *cfg->output_vlan;
064af421 3856 } else {
37e7f427
BP
3857 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3858 m->bridge->name, m->name);
fa066f01 3859 return false;
064af421
BP
3860 }
3861
fa066f01 3862 /* Get port selection. */
939ff267 3863 if (cfg->select_all) {
fa066f01
BP
3864 size_t n_ports = hmap_count(&m->bridge->ports);
3865 void **ports = xmalloc(n_ports * sizeof *ports);
abe529af 3866 struct port *port;
fa066f01
BP
3867 size_t i;
3868
3869 i = 0;
8052fb14 3870 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
fa066f01 3871 ports[i++] = port;
939ff267 3872 }
fa066f01
BP
3873
3874 s.srcs = ports;
3875 s.n_srcs = n_ports;
3876
3877 s.dsts = ports;
3878 s.n_dsts = n_ports;
939ff267 3879 } else {
fa066f01
BP
3880 /* Get ports, dropping ports that don't exist.
3881 * The IDL ensures that there are no duplicates. */
939ff267 3882 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
fa066f01 3883 &s.srcs, &s.n_srcs);
939ff267 3884 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
fa066f01 3885 &s.dsts, &s.n_dsts);
064af421
BP
3886 }
3887
fa066f01
BP
3888 /* Get VLAN selection. */
3889 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3890
3891 /* Configure. */
3892 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3893
064af421 3894 /* Clean up. */
fa066f01
BP
3895 if (s.srcs != s.dsts) {
3896 free(s.dsts);
3897 }
3898 free(s.srcs);
3899 free(s.src_vlans);
3900
3901 return true;
064af421 3902}
52a90c29
BP
3903\f
3904/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3905 *
3906 * This is deprecated. It is only for compatibility with broken device drivers
3907 * in old versions of Linux that do not properly support VLANs when VLAN
3908 * devices are not used. When broken device drivers are no longer in
3909 * widespread use, we will delete these interfaces. */
3910
37344ffa
EJ
3911static struct ovsrec_port **recs;
3912static size_t n_recs, allocated_recs;
52a90c29 3913
37344ffa
EJ
3914/* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
3915 * splinters are reconfigured. */
52a90c29 3916static void
37344ffa 3917register_rec(struct ovsrec_port *rec)
52a90c29 3918{
37344ffa
EJ
3919 if (n_recs >= allocated_recs) {
3920 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
52a90c29 3921 }
37344ffa 3922 recs[n_recs++] = rec;
52a90c29
BP
3923}
3924
37344ffa 3925/* Frees all of the ports registered with register_reg(). */
52a90c29 3926static void
37344ffa 3927free_registered_recs(void)
52a90c29
BP
3928{
3929 size_t i;
3930
37344ffa
EJ
3931 for (i = 0; i < n_recs; i++) {
3932 struct ovsrec_port *port = recs[i];
3933 size_t j;
3934
3935 for (j = 0; j < port->n_interfaces; j++) {
3936 struct ovsrec_interface *iface = port->interfaces[j];
3937 free(iface->name);
3938 free(iface);
3939 }
3940
a699f614 3941 smap_destroy(&port->other_config);
37344ffa
EJ
3942 free(port->interfaces);
3943 free(port->name);
3944 free(port->tag);
37344ffa 3945 free(port);
52a90c29 3946 }
37344ffa 3947 n_recs = 0;
52a90c29
BP
3948}
3949
3950/* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3951 * otherwise. */
3952static bool
3953vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3954{
a699f614
EJ
3955 return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
3956 false);
52a90c29
BP
3957}
3958
3959/* Figures out the set of VLANs that are in use for the purpose of VLAN
3960 * splinters.
3961 *
3962 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3963 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3964 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3965 * with free().
3966 *
3967 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3968 * use, returns NULL.
3969 *
3970 * Updates 'vlan_splinters_enabled_anywhere'. */
3971static unsigned long int *
3972collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3973{
3974 unsigned long int *splinter_vlans;
3975 struct sset splinter_ifaces;
3976 const char *real_dev_name;
3977 struct shash *real_devs;
3978 struct shash_node *node;
3979 struct bridge *br;
3980 size_t i;
3981
7c70698f
BP
3982 /* Free space allocated for synthesized ports and interfaces, since we're
3983 * in the process of reconstructing all of them. */
37344ffa 3984 free_registered_recs();
7c70698f 3985
45c580a3 3986 splinter_vlans = bitmap_allocate(4096);
52a90c29 3987 sset_init(&splinter_ifaces);
45c580a3 3988 vlan_splinters_enabled_anywhere = false;
52a90c29
BP
3989 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3990 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3991 size_t j;
3992
3993 for (j = 0; j < br_cfg->n_ports; j++) {
3994 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3995 int k;
3996
3997 for (k = 0; k < port_cfg->n_interfaces; k++) {
3998 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3999
4000 if (vlan_splinters_is_enabled(iface_cfg)) {
45c580a3 4001 vlan_splinters_enabled_anywhere = true;
52a90c29 4002 sset_add(&splinter_ifaces, iface_cfg->name);
52a90c29
BP
4003 vlan_bitmap_from_array__(port_cfg->trunks,
4004 port_cfg->n_trunks,
4005 splinter_vlans);
4006 }
4007 }
45c580a3
BP
4008
4009 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
4010 bitmap_set1(splinter_vlans, *port_cfg->tag);
4011 }
52a90c29
BP
4012 }
4013 }
4014
45c580a3
BP
4015 if (!vlan_splinters_enabled_anywhere) {
4016 free(splinter_vlans);
52a90c29
BP
4017 sset_destroy(&splinter_ifaces);
4018 return NULL;
4019 }
4020
4021 HMAP_FOR_EACH (br, node, &all_bridges) {
4022 if (br->ofproto) {
4023 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
4024 }
4025 }
4026
4027 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
4028 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
4029 * device to be created for it. */
4030 bitmap_set0(splinter_vlans, 0);
4031 bitmap_set0(splinter_vlans, 4095);
4032
4033 /* Delete all VLAN devices that we don't need. */
4034 vlandev_refresh();
4035 real_devs = vlandev_get_real_devs();
4036 SHASH_FOR_EACH (node, real_devs) {
4037 const struct vlan_real_dev *real_dev = node->data;
4038 const struct vlan_dev *vlan_dev;
4039 bool real_dev_has_splinters;
4040
4041 real_dev_has_splinters = sset_contains(&splinter_ifaces,
4042 real_dev->name);
4043 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
4044 if (!real_dev_has_splinters
4045 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
4046 struct netdev *netdev;
4047
4048 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
4049 if (!netdev_get_in4(netdev, NULL, NULL) ||
4050 !netdev_get_in6(netdev, NULL)) {
4051 vlandev_del(vlan_dev->name);
4052 } else {
4053 /* It has an IP address configured, so we don't own
4054 * it. Don't delete it. */
4055 }
4056 netdev_close(netdev);
4057 }
4058 }
4059
4060 }
4061 }
4062
4063 /* Add all VLAN devices that we need. */
4064 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
4065 int vid;
4066
4067 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4068 if (!vlandev_get_name(real_dev_name, vid)) {
4069 vlandev_add(real_dev_name, vid);
4070 }
4071 }
4072 }
4073
4074 vlandev_refresh();
4075
4076 sset_destroy(&splinter_ifaces);
4077
4078 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
4079 free(splinter_vlans);
4080 return NULL;
4081 }
4082 return splinter_vlans;
4083}
4084
4085/* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
4086 * ofproto. */
4087static void
4088configure_splinter_port(struct port *port)
4089{
4090 struct ofproto *ofproto = port->bridge->ofproto;
4091 uint16_t realdev_ofp_port;
4092 const char *realdev_name;
4093 struct iface *vlandev, *realdev;
4094
4095 ofproto_bundle_unregister(port->bridge->ofproto, port);
4096
4097 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
4098 port_elem);
4099
a699f614 4100 realdev_name = smap_get(&port->cfg->other_config, "realdev");
52a90c29
BP
4101 realdev = iface_lookup(port->bridge, realdev_name);
4102 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
4103
4104 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
4105 *port->cfg->tag);
4106}
4107
4108static struct ovsrec_port *
4109synthesize_splinter_port(const char *real_dev_name,
4110 const char *vlan_dev_name, int vid)
4111{
4112 struct ovsrec_interface *iface;
4113 struct ovsrec_port *port;
4114
a699f614
EJ
4115 iface = xmalloc(sizeof *iface);
4116 ovsrec_interface_init(iface);
52a90c29
BP
4117 iface->name = xstrdup(vlan_dev_name);
4118 iface->type = "system";
4119
a699f614
EJ
4120 port = xmalloc(sizeof *port);
4121 ovsrec_port_init(port);
52a90c29
BP
4122 port->interfaces = xmemdup(&iface, sizeof iface);
4123 port->n_interfaces = 1;
4124 port->name = xstrdup(vlan_dev_name);
4125 port->vlan_mode = "splinter";
4126 port->tag = xmalloc(sizeof *port->tag);
4127 *port->tag = vid;
a699f614
EJ
4128
4129 smap_add(&port->other_config, "realdev", real_dev_name);
52a90c29 4130
37344ffa 4131 register_rec(port);
52a90c29
BP
4132 return port;
4133}
4134
4135/* For each interface with 'br' that has VLAN splinters enabled, adds a
4136 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
4137 * 1-bit in the 'splinter_vlans' bitmap. */
4138static void
4139add_vlan_splinter_ports(struct bridge *br,
4140 const unsigned long int *splinter_vlans,
4141 struct shash *ports)
4142{
4143 size_t i;
4144
52a90c29
BP
4145 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
4146 * we're modifying 'ports'. */
4147 for (i = 0; i < br->cfg->n_ports; i++) {
4148 const char *name = br->cfg->ports[i]->name;
4149 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
4150 size_t j;
4151
4152 for (j = 0; j < port_cfg->n_interfaces; j++) {
4153 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
4154
4155 if (vlan_splinters_is_enabled(iface_cfg)) {
4156 const char *real_dev_name;
4157 uint16_t vid;
4158
4159 real_dev_name = iface_cfg->name;
4160 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4161 const char *vlan_dev_name;
4162
4163 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
4164 if (vlan_dev_name
4165 && !shash_find(ports, vlan_dev_name)) {
4166 shash_add(ports, vlan_dev_name,
4167 synthesize_splinter_port(
4168 real_dev_name, vlan_dev_name, vid));
4169 }
4170 }
4171 }
4172 }
4173 }
4174}
9d24de3b
JP
4175
4176static void
4177mirror_refresh_stats(struct mirror *m)
4178{
4179 struct ofproto *ofproto = m->bridge->ofproto;
4180 uint64_t tx_packets, tx_bytes;
4181 char *keys[2];
4182 int64_t values[2];
4183 size_t stat_cnt = 0;
4184
4185 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
4186 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
4187 return;
4188 }
4189
4190 if (tx_packets != UINT64_MAX) {
4191 keys[stat_cnt] = "tx_packets";
4192 values[stat_cnt] = tx_packets;
4193 stat_cnt++;
4194 }
4195 if (tx_bytes != UINT64_MAX) {
4196 keys[stat_cnt] = "tx_bytes";
4197 values[stat_cnt] = tx_bytes;
4198 stat_cnt++;
4199 }
4200
4201 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);
4202}