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45c580a3 1/* Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks
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"
18#include <assert.h>
19#include <errno.h>
064af421 20#include <inttypes.h>
064af421 21#include <stdlib.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"
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38#include "ofp-print.h"
39#include "ofpbuf.h"
8cd4882f 40#include "ofproto/ofproto.h"
064af421 41#include "poll-loop.h"
76343538 42#include "sha1.h"
6c88d577 43#include "shash.h"
064af421 44#include "socket-util.h"
5bd31620 45#include "stream.h"
fe55ad15 46#include "stream-ssl.h"
b3c01ed3 47#include "sset.h"
ce887677 48#include "system-stats.h"
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49#include "timeval.h"
50#include "util.h"
da285df4 51#include "unixctl.h"
52a90c29 52#include "vlandev.h"
eaa67ba8 53#include "lib/vswitch-idl.h"
064af421 54#include "xenserver.h"
5136ce49 55#include "vlog.h"
72b06300 56#include "sflow_api.h"
0fb7b915 57#include "vlan-bitmap.h"
064af421 58
d98e6007 59VLOG_DEFINE_THIS_MODULE(bridge);
064af421 60
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61COVERAGE_DEFINE(bridge_reconfigure);
62
064af421 63struct iface {
0c6aea3f 64 /* These members are always valid. */
83db7968 65 struct list port_elem; /* Element in struct port's "ifaces" list. */
ebea37cc 66 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
064af421 67 struct port *port; /* Containing port. */
064af421 68 char *name; /* Host network device name. */
064af421 69 tag_type tag; /* Tag associated with this interface. */
064af421 70
0c6aea3f 71 /* These members are valid only after bridge_reconfigure() causes them to
1e0b752d 72 * be initialized. */
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73 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
74 int ofp_port; /* OpenFlow port number, -1 if unknown. */
0c6aea3f 75 struct netdev *netdev; /* Network device. */
6cefe1da 76 const char *type; /* Usually same as cfg->type. */
76343538 77 const struct ovsrec_interface *cfg;
c1f15723 78 bool need_refresh; /* Refresh iface after create. */
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79};
80
064af421 81struct mirror {
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82 struct uuid uuid; /* UUID of this "mirror" record in database. */
83 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
064af421 84 struct bridge *bridge;
064af421 85 char *name;
9d24de3b 86 const struct ovsrec_mirror *cfg;
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87};
88
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89struct port {
90 struct bridge *bridge;
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91 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
92 char *name;
93
1e0b752d 94 const struct ovsrec_port *cfg;
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95
96 /* An ordinary bridge port has 1 interface.
97 * A bridge port for bonding has at least 2 interfaces. */
83db7968 98 struct list ifaces; /* List of "struct iface"s. */
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99};
100
064af421 101struct bridge {
764072fd 102 struct hmap_node node; /* In 'all_bridges'. */
064af421 103 char *name; /* User-specified arbitrary name. */
66da9bef 104 char *type; /* Datapath type. */
abe457eb 105 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
064af421 106 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
1e0b752d 107 const struct ovsrec_bridge *cfg;
064af421 108
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109 /* OpenFlow switch processing. */
110 struct ofproto *ofproto; /* OpenFlow switch. */
111
064af421 112 /* Bridge ports. */
8052fb14 113 struct hmap ports; /* "struct port"s indexed by name. */
892815f5 114 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
ebea37cc 115 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
064af421 116
064af421 117 /* Port mirroring. */
fa066f01 118 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
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119
120 /* Synthetic local port if necessary. */
121 struct ovsrec_port synth_local_port;
122 struct ovsrec_interface synth_local_iface;
123 struct ovsrec_interface *synth_local_ifacep;
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124};
125
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126/* All bridges, indexed by name. */
127static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
064af421 128
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129/* OVSDB IDL used to obtain configuration. */
130static struct ovsdb_idl *idl;
131
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132/* Each time this timer expires, the bridge fetches systems and interface
133 * statistics and pushes them into the database. */
134#define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
135static long long int stats_timer = LLONG_MIN;
018f1525 136
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137/* Stores the time after which rate limited statistics may be written to the
138 * database. Only updated when changes to the database require rate limiting.
139 */
140#define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
141static long long int db_limiter = LLONG_MIN;
6586adf5 142
66da9bef 143static void add_del_bridges(const struct ovsrec_open_vswitch *);
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144static void bridge_del_ofprotos(void);
145static bool bridge_add_ofprotos(struct bridge *);
66da9bef 146static void bridge_create(const struct ovsrec_bridge *);
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147static void bridge_destroy(struct bridge *);
148static struct bridge *bridge_lookup(const char *name);
8ca79daa 149static unixctl_cb_func bridge_unixctl_dump_flows;
fa05809b 150static unixctl_cb_func bridge_unixctl_reconnect;
1a048029 151static size_t bridge_get_controllers(const struct bridge *br,
76ce9432 152 struct ovsrec_controller ***controllersp);
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153static void bridge_add_del_ports(struct bridge *,
154 const unsigned long int *splinter_vlans);
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155static void bridge_add_ofproto_ports(struct bridge *);
156static void bridge_del_ofproto_ports(struct bridge *);
892815f5 157static void bridge_refresh_ofp_port(struct bridge *);
6f90b8f4 158static void bridge_configure_datapath_id(struct bridge *);
084f5290 159static void bridge_configure_flow_eviction_threshold(struct bridge *);
6f90b8f4 160static void bridge_configure_netflow(struct bridge *);
8402c74b 161static void bridge_configure_forward_bpdu(struct bridge *);
e764773c 162static void bridge_configure_mac_idle_time(struct bridge *);
6f90b8f4 163static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
21f7563c 164static void bridge_configure_stp(struct bridge *);
254750ce 165static void bridge_configure_tables(struct bridge *);
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166static void bridge_configure_remotes(struct bridge *,
167 const struct sockaddr_in *managers,
168 size_t n_managers);
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169static void bridge_pick_local_hw_addr(struct bridge *,
170 uint8_t ea[ETH_ADDR_LEN],
07c318f4 171 struct iface **hw_addr_iface);
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172static uint64_t bridge_pick_datapath_id(struct bridge *,
173 const uint8_t bridge_ea[ETH_ADDR_LEN],
07c318f4 174 struct iface *hw_addr_iface);
064af421 175static uint64_t dpid_from_hash(const void *, size_t nbytes);
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176static bool bridge_has_bond_fake_iface(const struct bridge *,
177 const char *name);
178static bool port_is_bond_fake_iface(const struct port *);
064af421 179
e8fe3026 180static unixctl_cb_func qos_unixctl_show;
8c4c1387 181
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182static struct port *port_create(struct bridge *, const struct ovsrec_port *);
183static void port_add_ifaces(struct port *);
184static void port_del_ifaces(struct port *);
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185static void port_destroy(struct port *);
186static struct port *port_lookup(const struct bridge *, const char *name);
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187static void port_configure(struct port *);
188static struct lacp_settings *port_configure_lacp(struct port *,
189 struct lacp_settings *);
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190static void port_configure_bond(struct port *, struct bond_settings *,
191 uint32_t *bond_stable_ids);
06b592bc 192static bool port_is_synthetic(const struct port *);
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193
194static void bridge_configure_mirrors(struct bridge *);
195static struct mirror *mirror_create(struct bridge *,
196 const struct ovsrec_mirror *);
064af421 197static void mirror_destroy(struct mirror *);
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198static bool mirror_configure(struct mirror *);
199static void mirror_refresh_stats(struct mirror *);
064af421 200
fa066f01 201static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
d295e8e9 202static struct iface *iface_create(struct port *port,
a740f0de 203 const struct ovsrec_interface *if_cfg);
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204static void iface_destroy(struct iface *);
205static struct iface *iface_lookup(const struct bridge *, const char *name);
e8fe3026 206static struct iface *iface_find(const char *name);
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207static struct iface *iface_from_ofp_port(const struct bridge *,
208 uint16_t ofp_port);
52df17e7 209static void iface_set_mac(struct iface *);
bcd49a45 210static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
3fc5a86a 211static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
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212static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
213static void iface_configure_cfm(struct iface *);
8f3fe844 214static void iface_refresh_cfm_stats(struct iface *);
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215static void iface_refresh_stats(struct iface *);
216static void iface_refresh_status(struct iface *);
cfea354b 217static bool iface_is_synthetic(const struct iface *);
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218static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
219 struct shash *);
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220static void shash_to_ovs_idl_map(struct shash *,
221 char ***keys, char ***values, size_t *n);
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222
223/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
224 *
225 * This is deprecated. It is only for compatibility with broken device drivers
226 * in old versions of Linux that do not properly support VLANs when VLAN
227 * devices are not used. When broken device drivers are no longer in
228 * widespread use, we will delete these interfaces. */
229
230/* True if VLAN splinters are enabled on any interface, false otherwise.*/
231static bool vlan_splinters_enabled_anywhere;
232
233static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
234static unsigned long int *collect_splinter_vlans(
235 const struct ovsrec_open_vswitch *);
236static void configure_splinter_port(struct port *);
237static void add_vlan_splinter_ports(struct bridge *,
238 const unsigned long int *splinter_vlans,
239 struct shash *ports);
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240\f
241/* Public functions. */
242
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243/* Initializes the bridge module, configuring it to obtain its configuration
244 * from an OVSDB server accessed over 'remote', which should be a string in a
245 * form acceptable to ovsdb_idl_create(). */
064af421 246void
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247bridge_init(const char *remote)
248{
249 /* Create connection to database. */
ef73f86c 250 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
06b6d651 251 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
c5187f17 252
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253 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
254 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
e85bbd75 255 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
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256 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
257 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
258 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
259 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
e85bbd75 260
62f3aaed 261 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
21f7563c 262 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
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263 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
264
21f7563c 265 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
80740385 266 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
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267 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
268 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
269
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270 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
271 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
272 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
273 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
65c3058c 274 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
62f3aaed 275 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
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276 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
277 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
62f3aaed 278 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
b4117094 279 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
b9380396 280 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
1de11730 281 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
b4117094 282 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
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283 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
284
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285 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
286 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
287 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
288 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
289
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290 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
291
292 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
293
294 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
9d24de3b 295 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
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296
297 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
298
299 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
300
301 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
302 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
303 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
304 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
305 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
306
307 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
308
c5187f17 309 /* Register unixctl commands. */
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310 unixctl_command_register("qos/show", "interface", 1, 1,
311 qos_unixctl_show, NULL);
312 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
7ff2009a 313 bridge_unixctl_dump_flows, NULL);
0e15264f 314 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
7ff2009a 315 bridge_unixctl_reconnect, NULL);
5827ce14 316 lacp_init();
c5187f17 317 bond_init();
9ac3fce4 318 cfm_init();
fe4a02e4 319 stp_init();
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320}
321
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322void
323bridge_exit(void)
324{
325 struct bridge *br, *next_br;
326
764072fd 327 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
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328 bridge_destroy(br);
329 }
330 ovsdb_idl_destroy(idl);
331}
332
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333/* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
334 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
335 * responsible for freeing '*managersp' (with free()).
336 *
337 * You may be asking yourself "why does ovs-vswitchd care?", because
338 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
339 * should not be and in fact is not directly involved in that. But
340 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
341 * it has to tell in-band control where the managers are to enable that.
94db5407 342 * (Thus, only managers connected in-band are collected.)
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343 */
344static void
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345collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
346 struct sockaddr_in **managersp, size_t *n_managersp)
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347{
348 struct sockaddr_in *managers = NULL;
349 size_t n_managers = 0;
b3c01ed3 350 struct sset targets;
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351 size_t i;
352
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353 /* Collect all of the potential targets from the "targets" columns of the
354 * rows pointed to by "manager_options", excluding any that are
355 * out-of-band. */
b3c01ed3 356 sset_init(&targets);
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357 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
358 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
359
360 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
b3c01ed3 361 sset_find_and_delete(&targets, m->target);
94db5407 362 } else {
b3c01ed3 363 sset_add(&targets, m->target);
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364 }
365 }
cd11000b 366
94db5407 367 /* Now extract the targets' IP addresses. */
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368 if (!sset_is_empty(&targets)) {
369 const char *target;
cd11000b 370
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371 managers = xmalloc(sset_count(&targets) * sizeof *managers);
372 SSET_FOR_EACH (target, &targets) {
94db5407 373 struct sockaddr_in *sin = &managers[n_managers];
cd11000b 374
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375 if (stream_parse_target_with_default_ports(target,
376 JSONRPC_TCP_PORT,
377 JSONRPC_SSL_PORT,
378 sin)) {
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379 n_managers++;
380 }
381 }
382 }
b3c01ed3 383 sset_destroy(&targets);
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384
385 *managersp = managers;
386 *n_managersp = n_managers;
387}
388
c5187f17 389static void
76343538 390bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
064af421 391{
52a90c29 392 unsigned long int *splinter_vlans;
cd11000b 393 struct sockaddr_in *managers;
66da9bef 394 struct bridge *br, *next;
72b06300 395 int sflow_bridge_number;
66da9bef 396 size_t n_managers;
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397
398 COVERAGE_INC(bridge_reconfigure);
399
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400 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
401 * iface"s according to 'ovs_cfg', with only very minimal configuration
402 * otherwise.
403 *
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404 * This is mostly an update to bridge data structures. Very little is
405 * pushed down to ofproto or lower layers. */
66da9bef 406 add_del_bridges(ovs_cfg);
52a90c29 407 splinter_vlans = collect_splinter_vlans(ovs_cfg);
764072fd 408 HMAP_FOR_EACH (br, node, &all_bridges) {
52a90c29 409 bridge_add_del_ports(br, splinter_vlans);
76343538 410 }
52a90c29 411 free(splinter_vlans);
064af421 412
66da9bef 413 /* Delete all datapaths and datapath ports that are no longer configured.
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414 *
415 * The kernel will reject any attempt to add a given port to a datapath if
416 * that port already belongs to a different datapath, so we must do all
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417 * port deletions before any port additions. A datapath always has a
418 * "local port" so we must delete not-configured datapaths too. */
f79e673f 419 bridge_del_ofprotos();
764072fd 420 HMAP_FOR_EACH (br, node, &all_bridges) {
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421 if (br->ofproto) {
422 bridge_del_ofproto_ports(br);
76343538 423 }
064af421 424 }
064af421 425
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426 /* Create datapaths and datapath ports that are missing.
427 *
428 * After this is done, we have our final set of bridges, ports, and
429 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
892815f5 430 * has at least one iface, every "struct iface" has a valid ofp_port and
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431 * netdev. */
432 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
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433 if (!br->ofproto) {
434 if (bridge_add_ofprotos(br)) {
435 bridge_del_ofproto_ports(br);
436 } else {
437 bridge_destroy(br);
438 }
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439 }
440 }
e8192d80 441 HMAP_FOR_EACH (br, node, &all_bridges) {
892815f5 442 bridge_refresh_ofp_port(br);
66da9bef 443 bridge_add_ofproto_ports(br);
064af421 444 }
064af421 445
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446 /* Complete the configuration. */
447 sflow_bridge_number = 0;
448 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
764072fd 449 HMAP_FOR_EACH (br, node, &all_bridges) {
8052fb14 450 struct port *port;
064af421 451
f145afdc
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452 /* We need the datapath ID early to allow LACP ports to use it as the
453 * default system ID. */
454 bridge_configure_datapath_id(br);
455
8052fb14 456 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
83db7968 457 struct iface *iface;
52df17e7 458
fa066f01 459 port_configure(port);
c1c9c9c4 460
48e1b7fb 461 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
66da9bef
BP
462 iface_configure_cfm(iface);
463 iface_configure_qos(iface, port->cfg->qos);
7ae79235 464 iface_set_mac(iface);
064af421
BP
465 }
466 }
fa066f01 467 bridge_configure_mirrors(br);
084f5290 468 bridge_configure_flow_eviction_threshold(br);
8402c74b 469 bridge_configure_forward_bpdu(br);
e764773c 470 bridge_configure_mac_idle_time(br);
fa066f01 471 bridge_configure_remotes(br, managers, n_managers);
66da9bef
BP
472 bridge_configure_netflow(br);
473 bridge_configure_sflow(br, &sflow_bridge_number);
21f7563c 474 bridge_configure_stp(br);
254750ce 475 bridge_configure_tables(br);
064af421 476 }
66da9bef 477 free(managers);
064af421 478
66da9bef
BP
479 /* ovs-vswitchd has completed initialization, so allow the process that
480 * forked us to exit successfully. */
481 daemonize_complete();
482}
064af421 483
f79e673f 484/* Iterate over all ofprotos and delete any of them that do not have a
66da9bef
BP
485 * configured bridge or that are the wrong type. */
486static void
f79e673f 487bridge_del_ofprotos(void)
66da9bef 488{
f79e673f
BP
489 struct sset names;
490 struct sset types;
66da9bef 491 const char *type;
6c88d577 492
f79e673f
BP
493 sset_init(&names);
494 sset_init(&types);
495 ofproto_enumerate_types(&types);
496 SSET_FOR_EACH (type, &types) {
66da9bef 497 const char *name;
3a6ccc8c 498
f79e673f
BP
499 ofproto_enumerate_names(type, &names);
500 SSET_FOR_EACH (name, &names) {
66da9bef
BP
501 struct bridge *br = bridge_lookup(name);
502 if (!br || strcmp(type, br->type)) {
f79e673f 503 ofproto_delete(name, type);
3a6ccc8c 504 }
b31bcf60
EJ
505 }
506 }
f79e673f
BP
507 sset_destroy(&names);
508 sset_destroy(&types);
66da9bef 509}
76343538 510
66da9bef 511static bool
f79e673f 512bridge_add_ofprotos(struct bridge *br)
66da9bef 513{
fa066f01 514 int error = ofproto_create(br->name, br->type, &br->ofproto);
66da9bef 515 if (error) {
fa066f01 516 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
66da9bef
BP
517 return false;
518 }
519 return true;
093e47f4 520}
c3827f61 521
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BP
522static void
523port_configure(struct port *port)
524{
525 const struct ovsrec_port *cfg = port->cfg;
526 struct bond_settings bond_settings;
527 struct lacp_settings lacp_settings;
528 struct ofproto_bundle_settings s;
529 struct iface *iface;
82057f51 530
52a90c29
BP
531 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
532 configure_splinter_port(port);
533 return;
534 }
535
fa066f01
BP
536 /* Get name. */
537 s.name = port->name;
3a6ccc8c 538
fa066f01
BP
539 /* Get slaves. */
540 s.n_slaves = 0;
541 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
542 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
892815f5 543 s.slaves[s.n_slaves++] = iface->ofp_port;
fa066f01 544 }
c3827f61 545
fa066f01
BP
546 /* Get VLAN tag. */
547 s.vlan = -1;
acaf1486
BP
548 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
549 s.vlan = *cfg->tag;
fa066f01 550 }
b0ec0f27 551
fa066f01
BP
552 /* Get VLAN trunks. */
553 s.trunks = NULL;
ecac4ebf 554 if (cfg->n_trunks) {
fa066f01 555 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
ecac4ebf
BP
556 }
557
558 /* Get VLAN mode. */
559 if (cfg->vlan_mode) {
560 if (!strcmp(cfg->vlan_mode, "access")) {
561 s.vlan_mode = PORT_VLAN_ACCESS;
562 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
563 s.vlan_mode = PORT_VLAN_TRUNK;
564 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
565 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
566 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
567 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
568 } else {
569 /* This "can't happen" because ovsdb-server should prevent it. */
570 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
571 s.vlan_mode = PORT_VLAN_TRUNK;
572 }
573 } else {
574 if (s.vlan >= 0) {
575 s.vlan_mode = PORT_VLAN_ACCESS;
576 if (cfg->n_trunks) {
577 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
578 port->name);
579 }
580 } else {
581 s.vlan_mode = PORT_VLAN_TRUNK;
582 }
064af421 583 }
f67f1354 584 s.use_priority_tags = !strcmp("true", ovsrec_port_get_other_config_value(
5e9ceccd 585 cfg, "priority-tags", ""));
064af421 586
fa066f01
BP
587 /* Get LACP settings. */
588 s.lacp = port_configure_lacp(port, &lacp_settings);
589 if (s.lacp) {
590 size_t i = 0;
064af421 591
fa066f01
BP
592 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
593 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
594 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
064af421 595 }
fa066f01
BP
596 } else {
597 s.lacp_slaves = NULL;
598 }
064af421 599
fa066f01
BP
600 /* Get bond settings. */
601 if (s.n_slaves > 1) {
fa066f01 602 s.bond = &bond_settings;
76ed83fc
BP
603 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
604 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
fa066f01
BP
605 } else {
606 s.bond = NULL;
76ed83fc 607 s.bond_stable_ids = NULL;
1670c579
EJ
608
609 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
610 netdev_set_miimon_interval(iface->netdev, 0);
611 }
fa066f01 612 }
093e47f4 613
fa066f01
BP
614 /* Register. */
615 ofproto_bundle_register(port->bridge->ofproto, port, &s);
76343538 616
fa066f01 617 /* Clean up. */
4e51de4c 618 free(s.slaves);
fa066f01
BP
619 free(s.trunks);
620 free(s.lacp_slaves);
76ed83fc 621 free(s.bond_stable_ids);
fa066f01 622}
76343538 623
6f90b8f4
BP
624/* Pick local port hardware address and datapath ID for 'br'. */
625static void
626bridge_configure_datapath_id(struct bridge *br)
627{
628 uint8_t ea[ETH_ADDR_LEN];
629 uint64_t dpid;
630 struct iface *local_iface;
631 struct iface *hw_addr_iface;
632 char *dpid_string;
76343538 633
6f90b8f4 634 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
892815f5 635 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
6f90b8f4
BP
636 if (local_iface) {
637 int error = netdev_set_etheraddr(local_iface->netdev, ea);
638 if (error) {
639 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
640 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
641 "Ethernet address: %s",
642 br->name, strerror(error));
643 }
644 }
645 memcpy(br->ea, ea, ETH_ADDR_LEN);
76343538 646
6f90b8f4
BP
647 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
648 ofproto_set_datapath_id(br->ofproto, dpid);
76343538 649
6f90b8f4
BP
650 dpid_string = xasprintf("%016"PRIx64, dpid);
651 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
652 free(dpid_string);
653}
064af421 654
6f90b8f4
BP
655/* Set NetFlow configuration on 'br'. */
656static void
657bridge_configure_netflow(struct bridge *br)
658{
659 struct ovsrec_netflow *cfg = br->cfg->netflow;
660 struct netflow_options opts;
72b06300 661
6f90b8f4
BP
662 if (!cfg) {
663 ofproto_set_netflow(br->ofproto, NULL);
664 return;
665 }
a4af0040 666
6f90b8f4 667 memset(&opts, 0, sizeof opts);
72b06300 668
6f90b8f4
BP
669 /* Get default NetFlow configuration from datapath.
670 * Apply overrides from 'cfg'. */
671 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
672 if (cfg->engine_type) {
673 opts.engine_type = *cfg->engine_type;
674 }
675 if (cfg->engine_id) {
676 opts.engine_id = *cfg->engine_id;
677 }
72b06300 678
6f90b8f4
BP
679 /* Configure active timeout interval. */
680 opts.active_timeout = cfg->active_timeout;
681 if (!opts.active_timeout) {
682 opts.active_timeout = -1;
683 } else if (opts.active_timeout < 0) {
684 VLOG_WARN("bridge %s: active timeout interval set to negative "
685 "value, using default instead (%d seconds)", br->name,
686 NF_ACTIVE_TIMEOUT_DEFAULT);
687 opts.active_timeout = -1;
688 }
72b06300 689
6f90b8f4
BP
690 /* Add engine ID to interface number to disambiguate bridgs? */
691 opts.add_id_to_iface = cfg->add_id_to_interface;
692 if (opts.add_id_to_iface) {
693 if (opts.engine_id > 0x7f) {
694 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
695 "another vswitch, choose an engine id less than 128",
696 br->name);
697 }
698 if (hmap_count(&br->ports) > 508) {
699 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
700 "another port when more than 508 ports are used",
701 br->name);
702 }
703 }
72b06300 704
6f90b8f4
BP
705 /* Collectors. */
706 sset_init(&opts.collectors);
707 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
a4af0040 708
6f90b8f4
BP
709 /* Configure. */
710 if (ofproto_set_netflow(br->ofproto, &opts)) {
711 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
712 }
713 sset_destroy(&opts.collectors);
714}
72b06300 715
6f90b8f4
BP
716/* Set sFlow configuration on 'br'. */
717static void
718bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
719{
720 const struct ovsrec_sflow *cfg = br->cfg->sflow;
721 struct ovsrec_controller **controllers;
722 struct ofproto_sflow_options oso;
723 size_t n_controllers;
724 size_t i;
72b06300 725
6f90b8f4
BP
726 if (!cfg) {
727 ofproto_set_sflow(br->ofproto, NULL);
728 return;
064af421 729 }
8052fb14 730
6f90b8f4 731 memset(&oso, 0, sizeof oso);
52df17e7 732
6f90b8f4
BP
733 sset_init(&oso.targets);
734 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
c1c9c9c4 735
6f90b8f4
BP
736 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
737 if (cfg->sampling) {
738 oso.sampling_rate = *cfg->sampling;
064af421 739 }
6f90b8f4
BP
740
741 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
742 if (cfg->polling) {
743 oso.polling_interval = *cfg->polling;
064af421 744 }
093e47f4 745
6f90b8f4
BP
746 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
747 if (cfg->header) {
748 oso.header_len = *cfg->header;
749 }
392730c4 750
6f90b8f4
BP
751 oso.sub_id = (*sflow_bridge_number)++;
752 oso.agent_device = cfg->agent;
392730c4 753
6f90b8f4
BP
754 oso.control_ip = NULL;
755 n_controllers = bridge_get_controllers(br, &controllers);
756 for (i = 0; i < n_controllers; i++) {
757 if (controllers[i]->local_ip) {
758 oso.control_ip = controllers[i]->local_ip;
759 break;
b31bcf60
EJ
760 }
761 }
6f90b8f4 762 ofproto_set_sflow(br->ofproto, &oso);
b31bcf60 763
6f90b8f4
BP
764 sset_destroy(&oso.targets);
765}
a7ff9bd7 766
21f7563c
JP
767static void
768port_configure_stp(const struct ofproto *ofproto, struct port *port,
769 struct ofproto_port_stp_settings *port_s,
770 int *port_num_counter, unsigned long *port_num_bitmap)
771{
772 const char *config_str;
773 struct iface *iface;
774
f67f1354
EJ
775 config_str = ovsrec_port_get_other_config_value(port->cfg, "stp-enable",
776 NULL);
21f7563c
JP
777 if (config_str && !strcmp(config_str, "false")) {
778 port_s->enable = false;
779 return;
780 } else {
781 port_s->enable = true;
782 }
783
784 /* STP over bonds is not supported. */
785 if (!list_is_singleton(&port->ifaces)) {
786 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
787 port->name);
788 port_s->enable = false;
789 return;
790 }
791
792 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
793
794 /* Internal ports shouldn't participate in spanning tree, so
795 * skip them. */
796 if (!strcmp(iface->type, "internal")) {
797 VLOG_DBG("port %s: disable STP on internal ports", port->name);
798 port_s->enable = false;
799 return;
800 }
801
802 /* STP on mirror output ports is not supported. */
803 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
804 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
805 port_s->enable = false;
806 return;
807 }
808
f67f1354
EJ
809 config_str = ovsrec_port_get_other_config_value(port->cfg, "stp-port-num",
810 NULL);
21f7563c
JP
811 if (config_str) {
812 unsigned long int port_num = strtoul(config_str, NULL, 0);
813 int port_idx = port_num - 1;
814
815 if (port_num < 1 || port_num > STP_MAX_PORTS) {
816 VLOG_ERR("port %s: invalid stp-port-num", port->name);
817 port_s->enable = false;
818 return;
819 }
820
821 if (bitmap_is_set(port_num_bitmap, port_idx)) {
822 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
823 port->name, port_num);
824 port_s->enable = false;
825 return;
826 }
827 bitmap_set1(port_num_bitmap, port_idx);
828 port_s->port_num = port_idx;
829 } else {
830 if (*port_num_counter > STP_MAX_PORTS) {
831 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
832 port_s->enable = false;
833 return;
834 }
835
836 port_s->port_num = (*port_num_counter)++;
837 }
838
f67f1354
EJ
839 config_str = ovsrec_port_get_other_config_value(port->cfg, "stp-path-cost",
840 NULL);
21f7563c
JP
841 if (config_str) {
842 port_s->path_cost = strtoul(config_str, NULL, 10);
843 } else {
6c038611 844 enum netdev_features current;
21f7563c
JP
845
846 if (netdev_get_features(iface->netdev, &current, NULL, NULL, NULL)) {
847 /* Couldn't get speed, so assume 100Mb/s. */
848 port_s->path_cost = 19;
849 } else {
850 unsigned int mbps;
851
852 mbps = netdev_features_to_bps(current) / 1000000;
853 port_s->path_cost = stp_convert_speed_to_cost(mbps);
854 }
855 }
856
f67f1354
EJ
857 config_str = ovsrec_port_get_other_config_value(port->cfg,
858 "stp-port-priority",
859 NULL);
21f7563c
JP
860 if (config_str) {
861 port_s->priority = strtoul(config_str, NULL, 0);
862 } else {
863 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
864 }
865}
866
867/* Set spanning tree configuration on 'br'. */
868static void
869bridge_configure_stp(struct bridge *br)
870{
871 if (!br->cfg->stp_enable) {
872 ofproto_set_stp(br->ofproto, NULL);
873 } else {
874 struct ofproto_stp_settings br_s;
875 const char *config_str;
876 struct port *port;
877 int port_num_counter;
878 unsigned long *port_num_bitmap;
879
f67f1354
EJ
880 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
881 "stp-system-id",
882 NULL);
21f7563c
JP
883 if (config_str) {
884 uint8_t ea[ETH_ADDR_LEN];
885
886 if (eth_addr_from_string(config_str, ea)) {
887 br_s.system_id = eth_addr_to_uint64(ea);
888 } else {
889 br_s.system_id = eth_addr_to_uint64(br->ea);
890 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
891 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
892 }
893 } else {
894 br_s.system_id = eth_addr_to_uint64(br->ea);
895 }
896
f67f1354
EJ
897 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
898 "stp-priority",
899 NULL);
21f7563c
JP
900 if (config_str) {
901 br_s.priority = strtoul(config_str, NULL, 0);
902 } else {
903 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
904 }
905
f67f1354
EJ
906 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
907 "stp-hello-time",
908 NULL);
21f7563c
JP
909 if (config_str) {
910 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
911 } else {
912 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
913 }
914
f67f1354
EJ
915 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
916 "stp-max-age",
917 NULL);
21f7563c
JP
918 if (config_str) {
919 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
920 } else {
921 br_s.max_age = STP_DEFAULT_MAX_AGE;
922 }
923
f67f1354
EJ
924 config_str = ovsrec_bridge_get_other_config_value(br->cfg,
925 "stp-forward-delay",
926 NULL);
21f7563c
JP
927 if (config_str) {
928 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
929 } else {
930 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
931 }
932
933 /* Configure STP on the bridge. */
934 if (ofproto_set_stp(br->ofproto, &br_s)) {
935 VLOG_ERR("bridge %s: could not enable STP", br->name);
936 return;
937 }
938
939 /* Users must either set the port number with the "stp-port-num"
940 * configuration on all ports or none. If manual configuration
941 * is not done, then we allocate them sequentially. */
942 port_num_counter = 0;
943 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
944 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
945 struct ofproto_port_stp_settings port_s;
946 struct iface *iface;
947
948 port_configure_stp(br->ofproto, port, &port_s,
949 &port_num_counter, port_num_bitmap);
950
951 /* As bonds are not supported, just apply configuration to
952 * all interfaces. */
953 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
954 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
955 &port_s)) {
956 VLOG_ERR("port %s: could not enable STP", port->name);
957 continue;
958 }
959 }
960 }
961
962 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
963 && port_num_counter) {
964 VLOG_ERR("bridge %s: must manually configure all STP port "
965 "IDs or none, disabling", br->name);
966 ofproto_set_stp(br->ofproto, NULL);
967 }
968 bitmap_free(port_num_bitmap);
969 }
970}
971
e8192d80
BP
972static bool
973bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
974{
975 const struct port *port = port_lookup(br, name);
976 return port && port_is_bond_fake_iface(port);
093e47f4
BP
977}
978
e8192d80
BP
979static bool
980port_is_bond_fake_iface(const struct port *port)
093e47f4 981{
e8192d80
BP
982 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
983}
093e47f4 984
66da9bef
BP
985static void
986add_del_bridges(const struct ovsrec_open_vswitch *cfg)
987{
988 struct bridge *br, *next;
989 struct shash new_br;
990 size_t i;
991
992 /* Collect new bridges' names and types. */
993 shash_init(&new_br);
994 for (i = 0; i < cfg->n_bridges; i++) {
5af5b532 995 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
66da9bef 996 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
5af5b532
BP
997
998 if (strchr(br_cfg->name, '/')) {
999 /* Prevent remote ovsdb-server users from accessing arbitrary
1000 * directories, e.g. consider a bridge named "../../../etc/". */
1001 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1002 br_cfg->name);
1003 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1004 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
66da9bef
BP
1005 }
1006 }
1007
1008 /* Get rid of deleted bridges or those whose types have changed.
1009 * Update 'cfg' of bridges that still exist. */
1010 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1011 br->cfg = shash_find_data(&new_br, br->name);
f79e673f
BP
1012 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1013 br->cfg->datapath_type))) {
66da9bef
BP
1014 bridge_destroy(br);
1015 }
1016 }
1017
1018 /* Add new bridges. */
1019 for (i = 0; i < cfg->n_bridges; i++) {
1020 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1021 struct bridge *br = bridge_lookup(br_cfg->name);
1022 if (!br) {
1023 bridge_create(br_cfg);
1024 }
1025 }
1026
1027 shash_destroy(&new_br);
1028}
1029
1030/* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
1031 * iface".
1032 *
1033 * The kernel will reject any attempt to add a given port to a datapath if that
1034 * port already belongs to a different datapath, so we must do all port
1035 * deletions before any port additions. */
1036static void
1037bridge_del_ofproto_ports(struct bridge *br)
1038{
1039 struct ofproto_port_dump dump;
1040 struct ofproto_port ofproto_port;
1041
1042 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1043 const char *name = ofproto_port.name;
1044 struct iface *iface;
1045 const char *type;
1046 int error;
1047
1048 /* Ignore the local port. We can't change it anyhow. */
1049 if (!strcmp(name, br->name)) {
1050 continue;
1051 }
1052
1053 /* Get the type that 'ofproto_port' should have (ordinarily the
1054 * type of its corresponding iface) or NULL if it should be
1055 * deleted. */
1056 iface = iface_lookup(br, name);
1057 type = (iface ? iface->type
1058 : bridge_has_bond_fake_iface(br, name) ? "internal"
1059 : NULL);
1060
1061 /* If it's the wrong type then delete the ofproto port. */
1062 if (type
1063 && !strcmp(ofproto_port.type, type)
1064 && (!iface || !iface->netdev
1065 || !strcmp(netdev_get_type(iface->netdev), type))) {
1066 continue;
1067 }
1068 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1069 if (error) {
1070 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1071 br->name, name, strerror(error));
1072 }
1073 if (iface) {
66da9bef
BP
1074 netdev_close(iface->netdev);
1075 iface->netdev = NULL;
1076 }
1077 }
1078}
1079
1080static void
892815f5 1081iface_set_ofp_port(struct iface *iface, int ofp_port)
66da9bef
BP
1082{
1083 struct bridge *br = iface->port->bridge;
1084
892815f5
BP
1085 assert(iface->ofp_port < 0 && ofp_port >= 0);
1086 iface->ofp_port = ofp_port;
1087 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
2e281761 1088 iface_set_ofport(iface->cfg, ofp_port);
66da9bef
BP
1089}
1090
1091static void
892815f5 1092bridge_refresh_ofp_port(struct bridge *br)
66da9bef
BP
1093{
1094 struct ofproto_port_dump dump;
1095 struct ofproto_port ofproto_port;
1096 struct port *port;
1097
892815f5 1098 /* Clear all the "ofp_port"es. */
66da9bef
BP
1099 hmap_clear(&br->ifaces);
1100 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1101 struct iface *iface;
1102
1103 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
892815f5 1104 iface->ofp_port = -1;
66da9bef
BP
1105 }
1106 }
1107
892815f5 1108 /* Obtain the correct "ofp_port"s from ofproto. */
66da9bef 1109 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
66da9bef
BP
1110 struct iface *iface = iface_lookup(br, ofproto_port.name);
1111 if (iface) {
892815f5 1112 if (iface->ofp_port >= 0) {
66da9bef
BP
1113 VLOG_WARN("bridge %s: interface %s reported twice",
1114 br->name, ofproto_port.name);
892815f5 1115 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
66da9bef 1116 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
892815f5 1117 br->name, ofproto_port.ofp_port);
66da9bef 1118 } else {
892815f5 1119 iface_set_ofp_port(iface, ofproto_port.ofp_port);
66da9bef
BP
1120 }
1121 }
1122 }
1123}
1124
f79e673f 1125/* Add an ofproto port for any "struct iface" that doesn't have one.
66da9bef
BP
1126 * Delete any "struct iface" for which this fails.
1127 * Delete any "struct port" that thereby ends up with no ifaces. */
1128static void
1129bridge_add_ofproto_ports(struct bridge *br)
1130{
1131 struct port *port, *next_port;
66da9bef
BP
1132
1133 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1134 struct iface *iface, *next_iface;
892815f5 1135 struct ofproto_port ofproto_port;
66da9bef
BP
1136
1137 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
66da9bef
BP
1138 int error;
1139
de5cdb90 1140 /* Open the netdev. */
66da9bef 1141 if (!iface->netdev) {
18812dff 1142 error = netdev_open(iface->name, iface->type, &iface->netdev);
de5cdb90
BP
1143 if (error) {
1144 VLOG_WARN("could not open network device %s (%s)",
1145 iface->name, strerror(error));
1146 }
52a90c29
BP
1147
1148 if (iface->netdev
1149 && port->cfg->vlan_mode
1150 && !strcmp(port->cfg->vlan_mode, "splinter")) {
1151 netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
1152 }
66da9bef 1153 } else {
de5cdb90 1154 error = 0;
66da9bef 1155 }
de5cdb90
BP
1156
1157 /* Configure the netdev. */
1158 if (iface->netdev) {
1159 struct shash args;
1160
1161 shash_init(&args);
1162 shash_from_ovs_idl_map(iface->cfg->key_options,
1163 iface->cfg->value_options,
1164 iface->cfg->n_options, &args);
1165 error = netdev_set_config(iface->netdev, &args);
1166 shash_destroy(&args);
1167
1168 if (error) {
1169 VLOG_WARN("could not configure network device %s (%s)",
1170 iface->name, strerror(error));
1171 netdev_close(iface->netdev);
1172 iface->netdev = NULL;
1173 }
66da9bef
BP
1174 }
1175
1176 /* Add the port, if necessary. */
892815f5 1177 if (iface->netdev && iface->ofp_port < 0) {
66da9bef
BP
1178 uint16_t ofp_port;
1179 int error;
1180
1181 error = ofproto_port_add(br->ofproto, iface->netdev,
1182 &ofp_port);
1183 if (!error) {
892815f5 1184 iface_set_ofp_port(iface, ofp_port);
66da9bef
BP
1185 } else {
1186 netdev_close(iface->netdev);
1187 iface->netdev = NULL;
1188 }
1189 }
1190
8cea3c07 1191 /* Populate stats columns in new Interface rows. */
c1f15723 1192 if (iface->netdev && iface->need_refresh) {
8cea3c07
BP
1193 iface_refresh_stats(iface);
1194 iface_refresh_status(iface);
c1f15723 1195 iface->need_refresh = false;
8cea3c07
BP
1196 }
1197
de5cdb90 1198 /* Delete the iface if we failed. */
892815f5 1199 if (iface->netdev && iface->ofp_port >= 0) {
66da9bef 1200 VLOG_DBG("bridge %s: interface %s is on port %d",
892815f5 1201 br->name, iface->name, iface->ofp_port);
66da9bef
BP
1202 } else {
1203 if (iface->netdev) {
1204 VLOG_ERR("bridge %s: missing %s interface, dropping",
1205 br->name, iface->name);
1206 } else {
1207 /* We already reported a related error, don't bother
1208 * duplicating it. */
1209 }
3fc5a86a 1210 iface_clear_db_record(iface->cfg);
66da9bef
BP
1211 iface_destroy(iface);
1212 }
1213 }
1214 if (list_is_empty(&port->ifaces)) {
1215 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1216 port_destroy(port);
1217 continue;
1218 }
1219
1220 /* Add bond fake iface if necessary. */
1221 if (port_is_bond_fake_iface(port)) {
1222 if (ofproto_port_query_by_name(br->ofproto, port->name,
1223 &ofproto_port)) {
66da9bef
BP
1224 struct netdev *netdev;
1225 int error;
1226
18812dff 1227 error = netdev_open(port->name, "internal", &netdev);
66da9bef
BP
1228 if (!error) {
1229 ofproto_port_add(br->ofproto, netdev, NULL);
1230 netdev_close(netdev);
1231 } else {
1232 VLOG_WARN("could not open network device %s (%s)",
1233 port->name, strerror(error));
1234 }
1235 } else {
1236 /* Already exists, nothing to do. */
1237 ofproto_port_destroy(&ofproto_port);
1238 }
1239 }
1240 }
1241}
1242
084f5290
SH
1243/* Set Flow eviction threshold */
1244static void
1245bridge_configure_flow_eviction_threshold(struct bridge *br)
1246{
1247 const char *threshold_str;
1248 unsigned threshold;
1249
f67f1354
EJ
1250 threshold_str =
1251 ovsrec_bridge_get_other_config_value(br->cfg,
1252 "flow-eviction-threshold",
1253 NULL);
084f5290
SH
1254 if (threshold_str) {
1255 threshold = strtoul(threshold_str, NULL, 10);
1256 } else {
1257 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1258 }
1259 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1260}
1261
8402c74b
SS
1262/* Set forward BPDU option. */
1263static void
1264bridge_configure_forward_bpdu(struct bridge *br)
1265{
1266 const char *forward_bpdu_str;
1267 bool forward_bpdu = false;
1268
f67f1354
EJ
1269 forward_bpdu_str = ovsrec_bridge_get_other_config_value(br->cfg,
1270 "forward-bpdu",
1271 NULL);
8402c74b
SS
1272 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1273 forward_bpdu = true;
1274 }
1275 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1276}
1277
e764773c
BP
1278/* Set MAC aging time for 'br'. */
1279static void
1280bridge_configure_mac_idle_time(struct bridge *br)
1281{
1282 const char *idle_time_str;
1283 int idle_time;
1284
f67f1354
EJ
1285 idle_time_str = ovsrec_bridge_get_other_config_value(br->cfg,
1286 "mac-aging-time",
1287 NULL);
e764773c
BP
1288 idle_time = (idle_time_str && atoi(idle_time_str)
1289 ? atoi(idle_time_str)
1290 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1291 ofproto_set_mac_idle_time(br->ofproto, idle_time);
1292}
1293
064af421
BP
1294static void
1295bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
07c318f4 1296 struct iface **hw_addr_iface)
064af421 1297{
f145afdc 1298 struct hmapx mirror_output_ports;
093e47f4 1299 const char *hwaddr;
8052fb14 1300 struct port *port;
3a48ace3 1301 bool found_addr = false;
064af421 1302 int error;
f145afdc 1303 int i;
064af421 1304
07c318f4 1305 *hw_addr_iface = NULL;
064af421
BP
1306
1307 /* Did the user request a particular MAC? */
f67f1354 1308 hwaddr = ovsrec_bridge_get_other_config_value(br->cfg, "hwaddr", NULL);
093e47f4 1309 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
064af421
BP
1310 if (eth_addr_is_multicast(ea)) {
1311 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1312 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1313 } else if (eth_addr_is_zero(ea)) {
1314 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1315 } else {
1316 return;
1317 }
1318 }
1319
f145afdc
BP
1320 /* Mirror output ports don't participate in picking the local hardware
1321 * address. ofproto can't help us find out whether a given port is a
1322 * mirror output because we haven't configured mirrors yet, so we need to
1323 * accumulate them ourselves. */
1324 hmapx_init(&mirror_output_ports);
1325 for (i = 0; i < br->cfg->n_mirrors; i++) {
1326 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1327 if (m->output_port) {
1328 hmapx_add(&mirror_output_ports, m->output_port);
1329 }
1330 }
1331
141f4942
BP
1332 /* Otherwise choose the minimum non-local MAC address among all of the
1333 * interfaces. */
8052fb14 1334 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
58b7527e 1335 uint8_t iface_ea[ETH_ADDR_LEN];
83db7968 1336 struct iface *candidate;
58b7527e
BP
1337 struct iface *iface;
1338
1339 /* Mirror output ports don't participate. */
f145afdc 1340 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
064af421
BP
1341 continue;
1342 }
58b7527e
BP
1343
1344 /* Choose the MAC address to represent the port. */
83db7968 1345 iface = NULL;
76343538 1346 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
ba09980a
BP
1347 /* Find the interface with this Ethernet address (if any) so that
1348 * we can provide the correct devname to the caller. */
83db7968 1349 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
ba09980a 1350 uint8_t candidate_ea[ETH_ADDR_LEN];
8fef8c71 1351 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
ba09980a
BP
1352 && eth_addr_equals(iface_ea, candidate_ea)) {
1353 iface = candidate;
1354 }
1355 }
58b7527e
BP
1356 } else {
1357 /* Choose the interface whose MAC address will represent the port.
1358 * The Linux kernel bonding code always chooses the MAC address of
1359 * the first slave added to a bond, and the Fedora networking
1360 * scripts always add slaves to a bond in alphabetical order, so
1361 * for compatibility we choose the interface with the name that is
1362 * first in alphabetical order. */
83db7968
BP
1363 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1364 if (!iface || strcmp(candidate->name, iface->name) < 0) {
58b7527e
BP
1365 iface = candidate;
1366 }
1367 }
1368
1369 /* The local port doesn't count (since we're trying to choose its
141f4942 1370 * MAC address anyway). */
892815f5 1371 if (iface->ofp_port == OFPP_LOCAL) {
064af421
BP
1372 continue;
1373 }
58b7527e
BP
1374
1375 /* Grab MAC. */
07c318f4 1376 error = netdev_get_etheraddr(iface->netdev, iface_ea);
58b7527e 1377 if (error) {
58b7527e 1378 continue;
064af421
BP
1379 }
1380 }
58b7527e
BP
1381
1382 /* Compare against our current choice. */
1383 if (!eth_addr_is_multicast(iface_ea) &&
141f4942 1384 !eth_addr_is_local(iface_ea) &&
58b7527e
BP
1385 !eth_addr_is_reserved(iface_ea) &&
1386 !eth_addr_is_zero(iface_ea) &&
0d1fe4a3 1387 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
58b7527e 1388 {
0babc06f 1389 memcpy(ea, iface_ea, ETH_ADDR_LEN);
8fef8c71 1390 *hw_addr_iface = iface;
3a48ace3 1391 found_addr = true;
58b7527e 1392 }
064af421 1393 }
3a48ace3
JP
1394 if (found_addr) {
1395 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1396 br->name, ETH_ADDR_ARGS(ea));
1397 } else {
064af421 1398 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
07c318f4 1399 *hw_addr_iface = NULL;
064af421
BP
1400 VLOG_WARN("bridge %s: using default bridge Ethernet "
1401 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
064af421 1402 }
f145afdc
BP
1403
1404 hmapx_destroy(&mirror_output_ports);
064af421
BP
1405}
1406
1407/* Choose and returns the datapath ID for bridge 'br' given that the bridge
1408 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
07c318f4
BP
1409 * an interface on 'br', then that interface must be passed in as
1410 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1411 * 'hw_addr_iface' must be passed in as a null pointer. */
064af421
BP
1412static uint64_t
1413bridge_pick_datapath_id(struct bridge *br,
1414 const uint8_t bridge_ea[ETH_ADDR_LEN],
07c318f4 1415 struct iface *hw_addr_iface)
064af421
BP
1416{
1417 /*
1418 * The procedure for choosing a bridge MAC address will, in the most
1419 * ordinary case, also choose a unique MAC that we can use as a datapath
1420 * ID. In some special cases, though, multiple bridges will end up with
1421 * the same MAC address. This is OK for the bridges, but it will confuse
1422 * the OpenFlow controller, because each datapath needs a unique datapath
1423 * ID.
1424 *
1425 * Datapath IDs must be unique. It is also very desirable that they be
1426 * stable from one run to the next, so that policy set on a datapath
1427 * "sticks".
1428 */
093e47f4 1429 const char *datapath_id;
064af421
BP
1430 uint64_t dpid;
1431
f67f1354
EJ
1432 datapath_id = ovsrec_bridge_get_other_config_value(br->cfg, "datapath-id",
1433 NULL);
093e47f4 1434 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
064af421
BP
1435 return dpid;
1436 }
1437
03eae5f8 1438 if (!hw_addr_iface) {
064af421
BP
1439 /*
1440 * A purely internal bridge, that is, one that has no non-virtual
03eae5f8 1441 * network devices on it at all, is difficult because it has no
064af421
BP
1442 * natural unique identifier at all.
1443 *
1444 * When the host is a XenServer, we handle this case by hashing the
1445 * host's UUID with the name of the bridge. Names of bridges are
1446 * persistent across XenServer reboots, although they can be reused if
1447 * an internal network is destroyed and then a new one is later
1448 * created, so this is fairly effective.
1449 *
1450 * When the host is not a XenServer, we punt by using a random MAC
1451 * address on each run.
1452 */
1453 const char *host_uuid = xenserver_get_host_uuid();
1454 if (host_uuid) {
1455 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1456 dpid = dpid_from_hash(combined, strlen(combined));
1457 free(combined);
1458 return dpid;
1459 }
1460 }
1461
1462 return eth_addr_to_uint64(bridge_ea);
1463}
1464
1465static uint64_t
1466dpid_from_hash(const void *data, size_t n)
1467{
5eccf359 1468 uint8_t hash[SHA1_DIGEST_SIZE];
064af421
BP
1469
1470 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
5eccf359 1471 sha1_bytes(data, n, hash);
064af421
BP
1472 eth_addr_mark_random(hash);
1473 return eth_addr_to_uint64(hash);
1474}
1475
ea83a2fc 1476static void
ea763e0e 1477iface_refresh_status(struct iface *iface)
ea83a2fc 1478{
ea763e0e
EJ
1479 struct shash sh;
1480
6c038611 1481 enum netdev_features current;
e210037e 1482 enum netdev_flags flags;
e210037e
AE
1483 int64_t bps;
1484 int mtu;
1485 int64_t mtu_64;
1486 int error;
1487
cfea354b
BP
1488 if (iface_is_synthetic(iface)) {
1489 return;
1490 }
1491
ea763e0e
EJ
1492 shash_init(&sh);
1493
2c2ea5a8 1494 if (!netdev_get_drv_info(iface->netdev, &sh)) {
ea763e0e
EJ
1495 size_t n;
1496 char **keys, **values;
ea83a2fc 1497
ea763e0e
EJ
1498 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1499 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1500
1501 free(keys);
1502 free(values);
1503 } else {
1504 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1505 }
1506
1507 shash_destroy_free_data(&sh);
e210037e
AE
1508
1509 error = netdev_get_flags(iface->netdev, &flags);
1510 if (!error) {
0acaddd0
EJ
1511 ovsrec_interface_set_admin_state(iface->cfg,
1512 flags & NETDEV_UP ? "up" : "down");
e210037e
AE
1513 }
1514 else {
1515 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1516 }
1517
1518 error = netdev_get_features(iface->netdev, &current, NULL, NULL, NULL);
1519 if (!error) {
1520 ovsrec_interface_set_duplex(iface->cfg,
1521 netdev_features_is_full_duplex(current)
1522 ? "full" : "half");
1523 /* warning: uint64_t -> int64_t conversion */
1524 bps = netdev_features_to_bps(current);
1525 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1526 }
1527 else {
1528 ovsrec_interface_set_duplex(iface->cfg, NULL);
1529 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1530 }
1531
e210037e 1532 error = netdev_get_mtu(iface->netdev, &mtu);
9b020780 1533 if (!error) {
e210037e
AE
1534 mtu_64 = mtu;
1535 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1536 }
1537 else {
1538 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1539 }
ea83a2fc
EJ
1540}
1541
0dfd1cb4 1542/* Writes 'iface''s CFM statistics to the database. */
8f3fe844 1543static void
b31bcf60
EJ
1544iface_refresh_cfm_stats(struct iface *iface)
1545{
93b8df38 1546 const struct ovsrec_interface *cfg = iface->cfg;
1de11730
EJ
1547 int fault, error;
1548 const uint64_t *rmps;
1549 size_t n_rmps;
b31bcf60 1550
21d48660
EJ
1551 if (iface_is_synthetic(iface)) {
1552 return;
1553 }
1554
a5610457
EJ
1555 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1556 iface->ofp_port);
8f3fe844 1557 if (fault >= 0) {
b9380396 1558 const char *reasons[CFM_FAULT_N_REASONS];
a5610457 1559 bool fault_bool = fault;
b9380396
EJ
1560 size_t i, j;
1561
1562 j = 0;
1563 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1564 int reason = 1 << i;
1565 if (fault & reason) {
1566 reasons[j++] = cfm_fault_reason_to_str(reason);
1567 }
1568 }
1569
a5610457 1570 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
b9380396 1571 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
0f0d2ae5
EJ
1572 } else {
1573 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
b9380396 1574 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
6586adf5 1575 }
1de11730
EJ
1576
1577 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1578 iface->ofp_port, &rmps, &n_rmps);
1579 if (error >= 0) {
1580 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1581 n_rmps);
1582 } else {
1583 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1584 }
b31bcf60
EJ
1585}
1586
018f1525
BP
1587static void
1588iface_refresh_stats(struct iface *iface)
1589{
98dbe2dd
BP
1590#define IFACE_STATS \
1591 IFACE_STAT(rx_packets, "rx_packets") \
1592 IFACE_STAT(tx_packets, "tx_packets") \
1593 IFACE_STAT(rx_bytes, "rx_bytes") \
1594 IFACE_STAT(tx_bytes, "tx_bytes") \
1595 IFACE_STAT(rx_dropped, "rx_dropped") \
1596 IFACE_STAT(tx_dropped, "tx_dropped") \
1597 IFACE_STAT(rx_errors, "rx_errors") \
1598 IFACE_STAT(tx_errors, "tx_errors") \
1599 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1600 IFACE_STAT(rx_over_errors, "rx_over_err") \
1601 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1602 IFACE_STAT(collisions, "collisions")
1603
1604#define IFACE_STAT(MEMBER, NAME) NAME,
1605 static char *keys[] = { IFACE_STATS };
1606#undef IFACE_STAT
1607 int64_t values[ARRAY_SIZE(keys)];
1608 int i;
018f1525
BP
1609
1610 struct netdev_stats stats;
1611
cfea354b
BP
1612 if (iface_is_synthetic(iface)) {
1613 return;
1614 }
1615
018f1525
BP
1616 /* Intentionally ignore return value, since errors will set 'stats' to
1617 * all-1s, and we will deal with that correctly below. */
1618 netdev_get_stats(iface->netdev, &stats);
1619
98dbe2dd
BP
1620 /* Copy statistics into values[] array. */
1621 i = 0;
1622#define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1623 IFACE_STATS;
1624#undef IFACE_STAT
1625 assert(i == ARRAY_SIZE(keys));
018f1525 1626
0acaddd0
EJ
1627 ovsrec_interface_set_statistics(iface->cfg, keys, values,
1628 ARRAY_SIZE(keys));
98dbe2dd 1629#undef IFACE_STATS
018f1525
BP
1630}
1631
21f7563c
JP
1632static void
1633br_refresh_stp_status(struct bridge *br)
1634{
1635 struct ofproto *ofproto = br->ofproto;
1636 struct ofproto_stp_status status;
1637 char *keys[3], *values[3];
1638 size_t i;
1639
1640 if (ofproto_get_stp_status(ofproto, &status)) {
1641 return;
1642 }
1643
1644 if (!status.enabled) {
1645 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1646 return;
1647 }
1648
1649 keys[0] = "stp_bridge_id",
1650 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1651 keys[1] = "stp_designated_root",
1652 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1653 keys[2] = "stp_root_path_cost",
1654 values[2] = xasprintf("%d", status.root_path_cost);
1655
1656 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1657
1658 for (i = 0; i < ARRAY_SIZE(values); i++) {
1659 free(values[i]);
1660 }
1661}
1662
1663static void
1664port_refresh_stp_status(struct port *port)
1665{
1666 struct ofproto *ofproto = port->bridge->ofproto;
1667 struct iface *iface;
1668 struct ofproto_port_stp_status status;
80740385
JP
1669 char *keys[4];
1670 char *str_values[4];
1671 int64_t int_values[3];
21f7563c
JP
1672 size_t i;
1673
06b592bc
EJ
1674 if (port_is_synthetic(port)) {
1675 return;
1676 }
1677
21f7563c
JP
1678 /* STP doesn't currently support bonds. */
1679 if (!list_is_singleton(&port->ifaces)) {
1680 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1681 return;
1682 }
1683
1684 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1685
1686 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1687 return;
1688 }
1689
1690 if (!status.enabled) {
1691 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
80740385 1692 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
21f7563c
JP
1693 return;
1694 }
1695
80740385
JP
1696 /* Set Status column. */
1697 keys[0] = "stp_port_id";
1698 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
21f7563c 1699 keys[1] = "stp_state";
80740385 1700 str_values[1] = xstrdup(stp_state_name(status.state));
21f7563c 1701 keys[2] = "stp_sec_in_state";
80740385 1702 str_values[2] = xasprintf("%u", status.sec_in_state);
21f7563c 1703 keys[3] = "stp_role";
80740385 1704 str_values[3] = xstrdup(stp_role_name(status.role));
21f7563c 1705
80740385
JP
1706 ovsrec_port_set_status(port->cfg, keys, str_values,
1707 ARRAY_SIZE(str_values));
21f7563c 1708
80740385
JP
1709 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1710 free(str_values[i]);
21f7563c 1711 }
80740385
JP
1712
1713 /* Set Statistics column. */
1714 keys[0] = "stp_tx_count";
1715 int_values[0] = status.tx_count;
1716 keys[1] = "stp_rx_count";
1717 int_values[1] = status.rx_count;
1718 keys[2] = "stp_error_count";
1719 int_values[2] = status.error_count;
1720
1721 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1722 ARRAY_SIZE(int_values));
21f7563c
JP
1723}
1724
3fe80505
BP
1725static bool
1726enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1727{
1728 const char *enable;
1729
1730 /* Use other-config:enable-system-stats by preference. */
f67f1354
EJ
1731 enable = ovsrec_open_vswitch_get_other_config_value(cfg,
1732 "enable-statistics",
1733 NULL);
3fe80505
BP
1734 if (enable) {
1735 return !strcmp(enable, "true");
1736 }
1737
1738 /* Disable by default. */
1739 return false;
1740}
1741
ce887677
BP
1742static void
1743refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1744{
1745 struct ovsdb_datum datum;
1746 struct shash stats;
1747
1748 shash_init(&stats);
3fe80505
BP
1749 if (enable_system_stats(cfg)) {
1750 get_system_stats(&stats);
1751 }
ce887677
BP
1752
1753 ovsdb_datum_from_shash(&datum, &stats);
1754 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1755 &datum);
1756}
1757
bffc0589
AE
1758static inline const char *
1759nx_role_to_str(enum nx_role role)
1760{
1761 switch (role) {
1762 case NX_ROLE_OTHER:
1763 return "other";
1764 case NX_ROLE_MASTER:
1765 return "master";
1766 case NX_ROLE_SLAVE:
1767 return "slave";
1768 default:
1769 return "*** INVALID ROLE ***";
1770 }
1771}
1772
1773static void
5d279086 1774refresh_controller_status(void)
bffc0589 1775{
5d279086 1776 struct bridge *br;
bffc0589
AE
1777 struct shash info;
1778 const struct ovsrec_controller *cfg;
1779
5d279086
AE
1780 shash_init(&info);
1781
1782 /* Accumulate status for controllers on all bridges. */
1783 HMAP_FOR_EACH (br, node, &all_bridges) {
1784 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1785 }
bffc0589 1786
5d279086 1787 /* Update each controller in the database with current status. */
bffc0589 1788 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
eb9b8307
AE
1789 struct ofproto_controller_info *cinfo =
1790 shash_find_data(&info, cfg->target);
1791
1792 if (cinfo) {
1793 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1794 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1795 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1796 (char **) cinfo->pairs.values,
1797 cinfo->pairs.n);
1798 } else {
1799 ovsrec_controller_set_is_connected(cfg, false);
1800 ovsrec_controller_set_role(cfg, NULL);
1801 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1802 }
bffc0589
AE
1803 }
1804
1805 ofproto_free_ofproto_controller_info(&info);
1806}
1807
8f3fe844
EJ
1808static void
1809refresh_cfm_stats(void)
1810{
1811 static struct ovsdb_idl_txn *txn = NULL;
1812
1813 if (!txn) {
1814 struct bridge *br;
1815
1816 txn = ovsdb_idl_txn_create(idl);
1817
1818 HMAP_FOR_EACH (br, node, &all_bridges) {
1819 struct iface *iface;
1820
1821 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1822 iface_refresh_cfm_stats(iface);
1823 }
1824 }
1825 }
1826
1827 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1828 ovsdb_idl_txn_destroy(txn);
1829 txn = NULL;
1830 }
1831}
1832
5fcc0d00
BP
1833/* Performs periodic activity required by bridges that needs to be done with
1834 * the least possible latency.
1835 *
1836 * It makes sense to call this function a couple of times per poll loop, to
1837 * provide a significant performance boost on some benchmarks with ofprotos
1838 * that use the ofproto-dpif implementation. */
1839void
1840bridge_run_fast(void)
1841{
1842 struct bridge *br;
1843
1844 HMAP_FOR_EACH (br, node, &all_bridges) {
1845 ofproto_run_fast(br->ofproto);
1846 }
1847}
1848
c5187f17 1849void
064af421
BP
1850bridge_run(void)
1851{
d54ff998
BP
1852 const struct ovsrec_open_vswitch *cfg;
1853
52a90c29 1854 bool vlan_splinters_changed;
d54ff998 1855 bool database_changed;
c5187f17 1856 struct bridge *br;
064af421 1857
06b6d651
BP
1858 /* (Re)configure if necessary. */
1859 database_changed = ovsdb_idl_run(idl);
1860 if (ovsdb_idl_is_lock_contended(idl)) {
1861 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1862 struct bridge *br, *next_br;
1863
1864 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1865 "disabling this process until it goes away");
1866
1867 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1868 bridge_destroy(br);
1869 }
1870 return;
1871 } else if (!ovsdb_idl_has_lock(idl)) {
1872 return;
1873 }
1874 cfg = ovsrec_open_vswitch_first(idl);
1875
c5187f17 1876 /* Let each bridge do the work that it needs to do. */
764072fd 1877 HMAP_FOR_EACH (br, node, &all_bridges) {
5fcc0d00 1878 ofproto_run(br->ofproto);
c5187f17
BP
1879 }
1880
d6da96ce
BP
1881 /* Re-configure SSL. We do this on every trip through the main loop,
1882 * instead of just when the database changes, because the contents of the
1883 * key and certificate files can change without the database changing.
1884 *
1885 * We do this before bridge_reconfigure() because that function might
1886 * initiate SSL connections and thus requires SSL to be configured. */
1887 if (cfg && cfg->ssl) {
1888 const struct ovsrec_ssl *ssl = cfg->ssl;
1889
1890 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1891 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1892 }
bf8f2167 1893
52a90c29
BP
1894 /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
1895 * has changed. */
1896 vlan_splinters_changed = false;
1897 if (vlan_splinters_enabled_anywhere) {
1898 HMAP_FOR_EACH (br, node, &all_bridges) {
1899 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
1900 vlan_splinters_changed = true;
1901 break;
1902 }
1903 }
1904 }
1905
5fcc0d00 1906 if (database_changed || vlan_splinters_changed) {
c5187f17
BP
1907 if (cfg) {
1908 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1909
c5187f17
BP
1910 bridge_reconfigure(cfg);
1911
1912 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1913 ovsdb_idl_txn_commit(txn);
1914 ovsdb_idl_txn_destroy(txn); /* XXX */
1e0b752d
BP
1915 } else {
1916 /* We still need to reconfigure to avoid dangling pointers to
1917 * now-destroyed ovsrec structures inside bridge data. */
1918 static const struct ovsrec_open_vswitch null_cfg;
1919
1920 bridge_reconfigure(&null_cfg);
064af421
BP
1921 }
1922 }
018f1525 1923
cd0cd65f
BP
1924 /* Refresh system and interface stats if necessary. */
1925 if (time_msec() >= stats_timer) {
ce887677
BP
1926 if (cfg) {
1927 struct ovsdb_idl_txn *txn;
018f1525 1928
ce887677 1929 txn = ovsdb_idl_txn_create(idl);
764072fd 1930 HMAP_FOR_EACH (br, node, &all_bridges) {
8052fb14 1931 struct port *port;
9d24de3b 1932 struct mirror *m;
018f1525 1933
8052fb14 1934 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
83db7968 1935 struct iface *iface;
018f1525 1936
83db7968 1937 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
ce887677 1938 iface_refresh_stats(iface);
ea763e0e 1939 iface_refresh_status(iface);
ce887677 1940 }
018f1525 1941 }
9d24de3b
JP
1942
1943 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
1944 mirror_refresh_stats(m);
1945 }
1946
018f1525 1947 }
ce887677 1948 refresh_system_stats(cfg);
5d279086 1949 refresh_controller_status();
ce887677
BP
1950 ovsdb_idl_txn_commit(txn);
1951 ovsdb_idl_txn_destroy(txn); /* XXX */
018f1525 1952 }
018f1525 1953
cd0cd65f 1954 stats_timer = time_msec() + STATS_INTERVAL;
018f1525 1955 }
6586adf5 1956
815cd583 1957 if (time_msec() >= db_limiter) {
6586adf5 1958 struct ovsdb_idl_txn *txn;
6586adf5
EJ
1959
1960 txn = ovsdb_idl_txn_create(idl);
764072fd 1961 HMAP_FOR_EACH (br, node, &all_bridges) {
15236eb4 1962 struct iface *iface;
21f7563c
JP
1963 struct port *port;
1964
1965 br_refresh_stp_status(br);
1966
1967 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1968 port_refresh_stp_status(port);
1969 }
15236eb4
EJ
1970
1971 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
70aa337d 1972 const char *link_state;
65c3058c 1973 int64_t link_resets;
15236eb4 1974 int current;
6586adf5 1975
15236eb4
EJ
1976 if (iface_is_synthetic(iface)) {
1977 continue;
1978 }
6586adf5 1979
15236eb4
EJ
1980 current = ofproto_port_is_lacp_current(br->ofproto,
1981 iface->ofp_port);
1982 if (current >= 0) {
1983 bool bl = current;
1984 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1985 } else {
1986 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
6586adf5 1987 }
70aa337d
EJ
1988
1989 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1990 ovsrec_interface_set_link_state(iface->cfg, link_state);
65c3058c
EJ
1991
1992 link_resets = netdev_get_carrier_resets(iface->netdev);
1993 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
6586adf5
EJ
1994 }
1995 }
1996
15236eb4 1997 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
815cd583 1998 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
6586adf5 1999 }
6586adf5
EJ
2000 ovsdb_idl_txn_destroy(txn);
2001 }
8f3fe844
EJ
2002
2003 refresh_cfm_stats();
064af421
BP
2004}
2005
2006void
2007bridge_wait(void)
2008{
c5187f17 2009 ovsdb_idl_wait(idl);
06b6d651
BP
2010 if (!hmap_is_empty(&all_bridges)) {
2011 struct bridge *br;
6586adf5 2012
06b6d651
BP
2013 HMAP_FOR_EACH (br, node, &all_bridges) {
2014 ofproto_wait(br->ofproto);
2015 }
2016 poll_timer_wait_until(stats_timer);
2017
2018 if (db_limiter > time_msec()) {
2019 poll_timer_wait_until(db_limiter);
2020 }
6586adf5 2021 }
064af421 2022}
8c4c1387 2023\f
e8fe3026
EJ
2024/* QoS unixctl user interface functions. */
2025
2026struct qos_unixctl_show_cbdata {
2027 struct ds *ds;
2028 struct iface *iface;
2029};
2030
2031static void
2032qos_unixctl_show_cb(unsigned int queue_id,
2033 const struct shash *details,
2034 void *aux)
2035{
2036 struct qos_unixctl_show_cbdata *data = aux;
2037 struct ds *ds = data->ds;
2038 struct iface *iface = data->iface;
2039 struct netdev_queue_stats stats;
2040 struct shash_node *node;
2041 int error;
2042
2043 ds_put_cstr(ds, "\n");
2044 if (queue_id) {
2045 ds_put_format(ds, "Queue %u:\n", queue_id);
2046 } else {
2047 ds_put_cstr(ds, "Default:\n");
2048 }
2049
2050 SHASH_FOR_EACH (node, details) {
2051 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
2052 }
2053
2054 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2055 if (!error) {
2056 if (stats.tx_packets != UINT64_MAX) {
2057 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2058 }
2059
2060 if (stats.tx_bytes != UINT64_MAX) {
2061 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2062 }
2063
2064 if (stats.tx_errors != UINT64_MAX) {
2065 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2066 }
2067 } else {
2068 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2069 queue_id, strerror(error));
2070 }
2071}
2072
2073static void
0e15264f
BP
2074qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2075 const char *argv[], void *aux OVS_UNUSED)
e8fe3026
EJ
2076{
2077 struct ds ds = DS_EMPTY_INITIALIZER;
2078 struct shash sh = SHASH_INITIALIZER(&sh);
2079 struct iface *iface;
2080 const char *type;
2081 struct shash_node *node;
2082 struct qos_unixctl_show_cbdata data;
2083 int error;
2084
0e15264f 2085 iface = iface_find(argv[1]);
e8fe3026 2086 if (!iface) {
bde9f75d 2087 unixctl_command_reply_error(conn, "no such interface");
e8fe3026
EJ
2088 return;
2089 }
2090
2091 netdev_get_qos(iface->netdev, &type, &sh);
2092
2093 if (*type != '\0') {
2094 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2095
2096 SHASH_FOR_EACH (node, &sh) {
2097 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
2098 }
2099
2100 data.ds = &ds;
2101 data.iface = iface;
2102 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2103
2104 if (error) {
2105 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2106 }
bde9f75d 2107 unixctl_command_reply(conn, ds_cstr(&ds));
e8fe3026
EJ
2108 } else {
2109 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
bde9f75d 2110 unixctl_command_reply_error(conn, ds_cstr(&ds));
e8fe3026
EJ
2111 }
2112
2113 shash_destroy_free_data(&sh);
2114 ds_destroy(&ds);
2115}
2116\f
064af421 2117/* Bridge reconfiguration functions. */
66da9bef 2118static void
1a6f1e2a 2119bridge_create(const struct ovsrec_bridge *br_cfg)
064af421
BP
2120{
2121 struct bridge *br;
064af421 2122
1a6f1e2a 2123 assert(!bridge_lookup(br_cfg->name));
ec6fde61 2124 br = xzalloc(sizeof *br);
064af421 2125
1a6f1e2a 2126 br->name = xstrdup(br_cfg->name);
f79e673f 2127 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
1a6f1e2a 2128 br->cfg = br_cfg;
e3f55cb8
BP
2129
2130 /* Derive the default Ethernet address from the bridge's UUID. This should
2131 * be unique and it will be stable between ovs-vswitchd runs. */
2132 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2133 eth_addr_mark_random(br->default_ea);
064af421 2134
8052fb14 2135 hmap_init(&br->ports);
d9a8717a 2136 hmap_init(&br->ifaces);
ebea37cc 2137 hmap_init(&br->iface_by_name);
fa066f01 2138 hmap_init(&br->mirrors);
4a1ee6ae 2139
764072fd 2140 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
064af421
BP
2141}
2142
2143static void
2144bridge_destroy(struct bridge *br)
2145{
2146 if (br) {
fa066f01
BP
2147 struct mirror *mirror, *next_mirror;
2148 struct port *port, *next_port;
064af421 2149
fa066f01 2150 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
8052fb14 2151 port_destroy(port);
064af421 2152 }
fa066f01
BP
2153 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2154 mirror_destroy(mirror);
f76e2dfc 2155 }
764072fd 2156 hmap_remove(&all_bridges, &br->node);
6d6ab93e 2157 ofproto_destroy(br->ofproto);
d9a8717a 2158 hmap_destroy(&br->ifaces);
8052fb14 2159 hmap_destroy(&br->ports);
ebea37cc 2160 hmap_destroy(&br->iface_by_name);
fa066f01 2161 hmap_destroy(&br->mirrors);
064af421 2162 free(br->name);
66da9bef 2163 free(br->type);
064af421
BP
2164 free(br);
2165 }
2166}
2167
2168static struct bridge *
2169bridge_lookup(const char *name)
2170{
2171 struct bridge *br;
2172
764072fd 2173 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
064af421
BP
2174 if (!strcmp(br->name, name)) {
2175 return br;
2176 }
2177 }
2178 return NULL;
2179}
2180
4f2cad2c
JP
2181/* Handle requests for a listing of all flows known by the OpenFlow
2182 * stack, including those normally hidden. */
2183static void
0e15264f
BP
2184bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2185 const char *argv[], void *aux OVS_UNUSED)
4f2cad2c
JP
2186{
2187 struct bridge *br;
2188 struct ds results;
d295e8e9 2189
0e15264f 2190 br = bridge_lookup(argv[1]);
4f2cad2c 2191 if (!br) {
bde9f75d 2192 unixctl_command_reply_error(conn, "Unknown bridge");
4f2cad2c
JP
2193 return;
2194 }
2195
2196 ds_init(&results);
2197 ofproto_get_all_flows(br->ofproto, &results);
2198
bde9f75d 2199 unixctl_command_reply(conn, ds_cstr(&results));
4f2cad2c
JP
2200 ds_destroy(&results);
2201}
2202
fa05809b
BP
2203/* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2204 * connections and reconnect. If BRIDGE is not specified, then all bridges
2205 * drop their controller connections and reconnect. */
2206static void
0e15264f
BP
2207bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2208 const char *argv[], void *aux OVS_UNUSED)
fa05809b
BP
2209{
2210 struct bridge *br;
0e15264f
BP
2211 if (argc > 1) {
2212 br = bridge_lookup(argv[1]);
fa05809b 2213 if (!br) {
bde9f75d 2214 unixctl_command_reply_error(conn, "Unknown bridge");
fa05809b
BP
2215 return;
2216 }
2217 ofproto_reconnect_controllers(br->ofproto);
2218 } else {
764072fd 2219 HMAP_FOR_EACH (br, node, &all_bridges) {
fa05809b
BP
2220 ofproto_reconnect_controllers(br->ofproto);
2221 }
2222 }
bde9f75d 2223 unixctl_command_reply(conn, NULL);
fa05809b
BP
2224}
2225
76ce9432 2226static size_t
1a048029 2227bridge_get_controllers(const struct bridge *br,
76ce9432 2228 struct ovsrec_controller ***controllersp)
064af421 2229{
76ce9432
BP
2230 struct ovsrec_controller **controllers;
2231 size_t n_controllers;
064af421 2232
1a048029
JP
2233 controllers = br->cfg->controller;
2234 n_controllers = br->cfg->n_controller;
76343538 2235
76ce9432
BP
2236 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2237 controllers = NULL;
2238 n_controllers = 0;
064af421 2239 }
76343538 2240
76ce9432
BP
2241 if (controllersp) {
2242 *controllersp = controllers;
2243 }
2244 return n_controllers;
064af421
BP
2245}
2246
66da9bef
BP
2247/* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2248 * those configured in 'br->cfg'. */
064af421 2249static void
52a90c29
BP
2250bridge_add_del_ports(struct bridge *br,
2251 const unsigned long int *splinter_vlans)
064af421 2252{
8052fb14 2253 struct port *port, *next;
76343538 2254 struct shash_node *node;
8052fb14 2255 struct shash new_ports;
6ae39834 2256 size_t i;
064af421 2257
064af421 2258 /* Collect new ports. */
76343538
BP
2259 shash_init(&new_ports);
2260 for (i = 0; i < br->cfg->n_ports; i++) {
2261 const char *name = br->cfg->ports[i]->name;
2262 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2263 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2264 br->name, name);
2265 }
2266 }
b5827b24
BP
2267 if (bridge_get_controllers(br, NULL)
2268 && !shash_find(&new_ports, br->name)) {
cfea354b
BP
2269 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2270 br->name, br->name);
72865317 2271
cfea354b
BP
2272 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2273 br->synth_local_port.n_interfaces = 1;
2274 br->synth_local_port.name = br->name;
2275
2276 br->synth_local_iface.name = br->name;
66da9bef 2277 br->synth_local_iface.type = "internal";
cfea354b
BP
2278
2279 br->synth_local_ifacep = &br->synth_local_iface;
2280
2281 shash_add(&new_ports, br->name, &br->synth_local_port);
064af421 2282 }
064af421 2283
52a90c29
BP
2284 if (splinter_vlans) {
2285 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2286 }
2287
4a1ee6ae 2288 /* Get rid of deleted ports.
a70e4b2a 2289 * Get rid of deleted interfaces on ports that still exist. */
8052fb14 2290 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
66da9bef
BP
2291 port->cfg = shash_find_data(&new_ports, port->name);
2292 if (!port->cfg) {
4a1ee6ae
BP
2293 port_destroy(port);
2294 } else {
66da9bef 2295 port_del_ifaces(port);
064af421
BP
2296 }
2297 }
4a1ee6ae
BP
2298
2299 /* Create new ports.
66da9bef 2300 * Add new interfaces to existing ports. */
76343538 2301 SHASH_FOR_EACH (node, &new_ports) {
8052fb14 2302 struct port *port = port_lookup(br, node->name);
76343538 2303 if (!port) {
66da9bef
BP
2304 struct ovsrec_port *cfg = node->data;
2305 port = port_create(br, cfg);
064af421 2306 }
66da9bef 2307 port_add_ifaces(port);
402f2858 2308 if (list_is_empty(&port->ifaces)) {
ceb4559f
JG
2309 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2310 br->name, port->name);
2311 port_destroy(port);
2312 }
064af421 2313 }
76343538 2314 shash_destroy(&new_ports);
064af421
BP
2315}
2316
7d674866
BP
2317/* Initializes 'oc' appropriately as a management service controller for
2318 * 'br'.
2319 *
2320 * The caller must free oc->target when it is no longer needed. */
2321static void
2322bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2323 struct ofproto_controller *oc)
2324{
b43c6fe2 2325 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
7d674866
BP
2326 oc->max_backoff = 0;
2327 oc->probe_interval = 60;
2328 oc->band = OFPROTO_OUT_OF_BAND;
7d674866
BP
2329 oc->rate_limit = 0;
2330 oc->burst_limit = 0;
9886b662 2331 oc->enable_async_msgs = true;
7d674866
BP
2332}
2333
2334/* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2335static void
2336bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2337 struct ofproto_controller *oc)
2338{
f125905c
MM
2339 const char *config_str;
2340
7d674866
BP
2341 oc->target = c->target;
2342 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2343 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2344 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2345 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
7d674866
BP
2346 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2347 oc->burst_limit = (c->controller_burst_limit
2348 ? *c->controller_burst_limit : 0);
9886b662
BP
2349 oc->enable_async_msgs = (!c->enable_async_messages
2350 || *c->enable_async_messages);
f125905c
MM
2351 config_str = ovsrec_controller_get_other_config_value(c, "dscp", NULL);
2352 if (config_str) {
2353 oc->dscp = atoi(config_str);
2354 } else {
2355 oc->dscp = DSCP_DEFAULT;
2356 }
7d674866
BP
2357}
2358
2359/* Configures the IP stack for 'br''s local interface properly according to the
2360 * configuration in 'c'. */
2361static void
2362bridge_configure_local_iface_netdev(struct bridge *br,
2363 struct ovsrec_controller *c)
2364{
2365 struct netdev *netdev;
2366 struct in_addr mask, gateway;
2367
2368 struct iface *local_iface;
2369 struct in_addr ip;
2370
7d674866 2371 /* If there's no local interface or no IP address, give up. */
892815f5 2372 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
7d674866
BP
2373 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2374 return;
2375 }
2376
2377 /* Bring up the local interface. */
2378 netdev = local_iface->netdev;
2379 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2380
2381 /* Configure the IP address and netmask. */
2382 if (!c->local_netmask
2383 || !inet_aton(c->local_netmask, &mask)
2384 || !mask.s_addr) {
2385 mask.s_addr = guess_netmask(ip.s_addr);
2386 }
2387 if (!netdev_set_in4(netdev, ip, mask)) {
2388 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2389 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2390 }
2391
2392 /* Configure the default gateway. */
2393 if (c->local_gateway
2394 && inet_aton(c->local_gateway, &gateway)
2395 && gateway.s_addr) {
2396 if (!netdev_add_router(netdev, gateway)) {
2397 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2398 br->name, IP_ARGS(&gateway.s_addr));
2399 }
2400 }
2401}
2402
cb4ef1ea
BP
2403/* Returns true if 'a' and 'b' are the same except that any number of slashes
2404 * in either string are treated as equal to any number of slashes in the other,
2405 * e.g. "x///y" is equal to "x/y". */
2406static bool
2407equal_pathnames(const char *a, const char *b)
2408{
2409 while (*a == *b) {
2410 if (*a == '/') {
2411 a += strspn(a, "/");
2412 b += strspn(b, "/");
2413 } else if (*a == '\0') {
2414 return true;
2415 } else {
2416 a++;
2417 b++;
2418 }
2419 }
2420 return false;
2421}
2422
064af421 2423static void
fa066f01
BP
2424bridge_configure_remotes(struct bridge *br,
2425 const struct sockaddr_in *managers, size_t n_managers)
064af421 2426{
b1da6250
BP
2427 const char *disable_ib_str, *queue_id_str;
2428 bool disable_in_band = false;
2429 int queue_id;
2430
76ce9432
BP
2431 struct ovsrec_controller **controllers;
2432 size_t n_controllers;
7d674866 2433
66da9bef 2434 enum ofproto_fail_mode fail_mode;
7d674866
BP
2435
2436 struct ofproto_controller *ocs;
2437 size_t n_ocs;
2438 size_t i;
064af421 2439
8731b2b6 2440 /* Check if we should disable in-band control on this bridge. */
f67f1354
EJ
2441 disable_ib_str = ovsrec_bridge_get_other_config_value(br->cfg,
2442 "disable-in-band",
2443 NULL);
8731b2b6
JP
2444 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2445 disable_in_band = true;
2446 }
2447
b1da6250 2448 /* Set OpenFlow queue ID for in-band control. */
f67f1354
EJ
2449 queue_id_str = ovsrec_bridge_get_other_config_value(br->cfg,
2450 "in-band-queue",
2451 NULL);
b1da6250
BP
2452 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2453 ofproto_set_in_band_queue(br->ofproto, queue_id);
2454
8731b2b6
JP
2455 if (disable_in_band) {
2456 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2457 } else {
2458 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2459 }
cd11000b 2460
1a048029 2461 n_controllers = bridge_get_controllers(br, &controllers);
064af421 2462
7d674866
BP
2463 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2464 n_ocs = 0;
064af421 2465
7d674866
BP
2466 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2467 for (i = 0; i < n_controllers; i++) {
2468 struct ovsrec_controller *c = controllers[i];
76ce9432 2469
7d674866
BP
2470 if (!strncmp(c->target, "punix:", 6)
2471 || !strncmp(c->target, "unix:", 5)) {
2472 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
cb4ef1ea
BP
2473 char *whitelist;
2474
2475 whitelist = xasprintf("unix:%s/%s.controller",
2476 ovs_rundir(), br->name);
2477 if (!equal_pathnames(c->target, whitelist)) {
2478 /* Prevent remote ovsdb-server users from accessing arbitrary
2479 * Unix domain sockets and overwriting arbitrary local
2480 * files. */
2481 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2482 "controller \"%s\" due to possibility for remote "
2483 "exploit. Instead, specify whitelisted \"%s\" or "
2484 "connect to \"unix:%s/%s.mgmt\" (which is always "
2485 "available without special configuration).",
2486 br->name, c->target, whitelist,
2487 ovs_rundir(), br->name);
2488 free(whitelist);
2489 continue;
2490 }
4d6fb5eb 2491
cb4ef1ea 2492 free(whitelist);
4d6fb5eb
EJ
2493 }
2494
7d674866 2495 bridge_configure_local_iface_netdev(br, c);
8731b2b6
JP
2496 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2497 if (disable_in_band) {
2498 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
f620b43a 2499 }
8731b2b6 2500 n_ocs++;
be02e7c3 2501 }
be02e7c3 2502
7d674866
BP
2503 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2504 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2505 free(ocs);
66da9bef
BP
2506
2507 /* Set the fail-mode. */
2508 fail_mode = !br->cfg->fail_mode
2509 || !strcmp(br->cfg->fail_mode, "standalone")
2510 ? OFPROTO_FAIL_STANDALONE
2511 : OFPROTO_FAIL_SECURE;
2512 ofproto_set_fail_mode(br->ofproto, fail_mode);
2513
2514 /* Configure OpenFlow controller connection snooping. */
2515 if (!ofproto_has_snoops(br->ofproto)) {
2516 struct sset snoops;
5827ce14 2517
66da9bef
BP
2518 sset_init(&snoops);
2519 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2520 ovs_rundir(), br->name));
2521 ofproto_set_snoops(br->ofproto, &snoops);
2522 sset_destroy(&snoops);
064af421
BP
2523 }
2524}
254750ce
BP
2525
2526static void
2527bridge_configure_tables(struct bridge *br)
2528{
2529 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2530 int n_tables;
2531 int i, j;
2532
2533 n_tables = ofproto_get_n_tables(br->ofproto);
2534 j = 0;
2535 for (i = 0; i < n_tables; i++) {
2536 struct ofproto_table_settings s;
2537
2538 s.name = NULL;
2539 s.max_flows = UINT_MAX;
2540 s.groups = NULL;
2541 s.n_groups = 0;
2542
2543 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
2544 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
2545
2546 s.name = cfg->name;
2547 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
2548 s.max_flows = *cfg->flow_limit;
2549 }
2550 if (cfg->overflow_policy
2551 && !strcmp(cfg->overflow_policy, "evict")) {
2552 size_t k;
2553
2554 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
2555 for (k = 0; k < cfg->n_groups; k++) {
2556 const char *string = cfg->groups[k];
2557 char *msg;
2558
2559 msg = mf_parse_subfield__(&s.groups[k], &string);
2560 if (msg) {
2561 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
2562 "'groups' (%s)", br->name, i, msg);
2563 free(msg);
2564 } else if (*string) {
2565 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
2566 "element '%s' contains trailing garbage",
2567 br->name, i, cfg->groups[k]);
2568 } else {
2569 s.n_groups++;
2570 }
2571 }
2572 }
2573 }
2574
2575 ofproto_configure_table(br->ofproto, i, &s);
2576
2577 free(s.groups);
2578 }
2579 for (; j < br->cfg->n_flow_tables; j++) {
2580 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
2581 "%"PRId64" not supported by this datapath", br->name,
2582 br->cfg->key_flow_tables[j]);
2583 }
2584}
064af421 2585\f
fa066f01 2586/* Port functions. */
064af421 2587
f620b43a 2588static struct port *
fa066f01 2589port_create(struct bridge *br, const struct ovsrec_port *cfg)
064af421 2590{
f620b43a
BP
2591 struct port *port;
2592
2593 port = xzalloc(sizeof *port);
2594 port->bridge = br;
fa066f01
BP
2595 port->name = xstrdup(cfg->name);
2596 port->cfg = cfg;
f620b43a
BP
2597 list_init(&port->ifaces);
2598
2599 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2600
2601 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
f620b43a
BP
2602
2603 return port;
064af421
BP
2604}
2605
fa066f01 2606/* Deletes interfaces from 'port' that are no longer configured for it. */
064af421 2607static void
fa066f01 2608port_del_ifaces(struct port *port)
064af421 2609{
f620b43a
BP
2610 struct iface *iface, *next;
2611 struct sset new_ifaces;
2612 size_t i;
064af421 2613
f620b43a
BP
2614 /* Collect list of new interfaces. */
2615 sset_init(&new_ifaces);
fa066f01
BP
2616 for (i = 0; i < port->cfg->n_interfaces; i++) {
2617 const char *name = port->cfg->interfaces[i]->name;
00794817
BP
2618 const char *type = port->cfg->interfaces[i]->name;
2619 if (strcmp(type, "null")) {
2620 sset_add(&new_ifaces, name);
2621 }
f620b43a 2622 }
064af421 2623
f620b43a
BP
2624 /* Get rid of deleted interfaces. */
2625 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2626 if (!sset_contains(&new_ifaces, iface->name)) {
2627 iface_destroy(iface);
064af421 2628 }
064af421 2629 }
f620b43a
BP
2630
2631 sset_destroy(&new_ifaces);
064af421
BP
2632}
2633
fa066f01
BP
2634/* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2635 * existing ones. */
064af421 2636static void
fa066f01 2637port_add_ifaces(struct port *port)
064af421 2638{
fa066f01
BP
2639 struct shash new_ifaces;
2640 struct shash_node *node;
2641 size_t i;
064af421 2642
fa066f01
BP
2643 /* Collect new ifaces. */
2644 shash_init(&new_ifaces);
2645 for (i = 0; i < port->cfg->n_interfaces; i++) {
2646 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
00794817
BP
2647 if (strcmp(cfg->type, "null")
2648 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
fa066f01
BP
2649 VLOG_WARN("port %s: %s specified twice as port interface",
2650 port->name, cfg->name);
3fc5a86a 2651 iface_clear_db_record(cfg);
f620b43a 2652 }
064af421 2653 }
be02e7c3 2654
fa066f01
BP
2655 /* Create new interfaces.
2656 * Update interface types and 'cfg' members. */
2657 SHASH_FOR_EACH (node, &new_ifaces) {
2658 const struct ovsrec_interface *cfg = node->data;
2659 const char *iface_name = node->name;
76343538
BP
2660 struct iface *iface;
2661
fa066f01
BP
2662 iface = iface_lookup(port->bridge, iface_name);
2663 if (!iface) {
2664 iface = iface_create(port, cfg);
2665 } else {
2666 iface->cfg = cfg;
4a1ee6ae
BP
2667 }
2668
84b32864
EJ
2669 /* Determine interface type. The local port always has type
2670 * "internal". Other ports take their type from the database and
2671 * default to "system" if none is specified. */
fa066f01
BP
2672 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2673 : cfg->type[0] ? cfg->type
2674 : "system");
d5346278 2675 }
fa066f01 2676 shash_destroy(&new_ifaces);
064af421
BP
2677}
2678
2679static void
2680port_destroy(struct port *port)
2681{
2682 if (port) {
2683 struct bridge *br = port->bridge;
83db7968 2684 struct iface *iface, *next;
064af421 2685
fa066f01
BP
2686 if (br->ofproto) {
2687 ofproto_bundle_unregister(br->ofproto, port);
064af421
BP
2688 }
2689
83db7968
BP
2690 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2691 iface_destroy(iface);
064af421
BP
2692 }
2693
8052fb14 2694 hmap_remove(&br->ports, &port->hmap_node);
064af421 2695
99707a7a
JP
2696 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2697
064af421
BP
2698 free(port->name);
2699 free(port);
064af421
BP
2700 }
2701}
2702
064af421
BP
2703static struct port *
2704port_lookup(const struct bridge *br, const char *name)
2705{
8052fb14
BP
2706 struct port *port;
2707
2708 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2709 &br->ports) {
2710 if (!strcmp(port->name, name)) {
2711 return port;
2712 }
2713 }
2714 return NULL;
064af421
BP
2715}
2716
7a673515
BP
2717static bool
2718enable_lacp(struct port *port, bool *activep)
2719{
2720 if (!port->cfg->lacp) {
2721 /* XXX when LACP implementation has been sufficiently tested, enable by
2722 * default and make active on bonded ports. */
2723 return false;
2724 } else if (!strcmp(port->cfg->lacp, "off")) {
2725 return false;
2726 } else if (!strcmp(port->cfg->lacp, "active")) {
2727 *activep = true;
2728 return true;
2729 } else if (!strcmp(port->cfg->lacp, "passive")) {
2730 *activep = false;
2731 return true;
2732 } else {
2733 VLOG_WARN("port %s: unknown LACP mode %s",
2734 port->name, port->cfg->lacp);
2735 return false;
2736 }
2737}
2738
fa066f01
BP
2739static struct lacp_settings *
2740port_configure_lacp(struct port *port, struct lacp_settings *s)
5827ce14 2741{
e567943d 2742 const char *lacp_time, *system_id;
cdcf42c6 2743 long long int custom_time;
b5a25389 2744 int priority;
5827ce14 2745
fa066f01
BP
2746 if (!enable_lacp(port, &s->active)) {
2747 return NULL;
abd4a95d
EJ
2748 }
2749
fa066f01 2750 s->name = port->name;
e567943d 2751
f67f1354
EJ
2752 system_id = ovsrec_port_get_other_config_value(port->cfg, "lacp-system-id",
2753 NULL);
a9bf011b
EJ
2754 if (system_id) {
2755 if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
2756 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
2757 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
2758 " address.", port->name, system_id);
2759 return NULL;
2760 }
2761 } else {
e567943d
EJ
2762 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2763 }
b5a25389 2764
69fdadb1
EJ
2765 if (eth_addr_is_zero(s->id)) {
2766 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
2767 return NULL;
2768 }
2769
b5a25389 2770 /* Prefer bondable links if unspecified. */
f67f1354
EJ
2771 priority = atoi(ovsrec_port_get_other_config_value(port->cfg,
2772 "lacp-system-priority",
2773 "0"));
fa066f01
BP
2774 s->priority = (priority > 0 && priority <= UINT16_MAX
2775 ? priority
2776 : UINT16_MAX - !list_is_short(&port->ifaces));
b5a25389 2777
f67f1354
EJ
2778 s->heartbeat = !strcmp(ovsrec_port_get_other_config_value(port->cfg,
2779 "lacp-heartbeat",
2780 "false"),
2781 "true");
b5a25389 2782
f67f1354
EJ
2783 lacp_time = ovsrec_port_get_other_config_value(port->cfg, "lacp-time",
2784 "slow");
cdcf42c6
EJ
2785 custom_time = atoi(lacp_time);
2786 if (!strcmp(lacp_time, "fast")) {
fa066f01 2787 s->lacp_time = LACP_TIME_FAST;
cdcf42c6 2788 } else if (!strcmp(lacp_time, "slow")) {
fa066f01 2789 s->lacp_time = LACP_TIME_SLOW;
cdcf42c6 2790 } else if (custom_time > 0) {
fa066f01
BP
2791 s->lacp_time = LACP_TIME_CUSTOM;
2792 s->custom_time = custom_time;
cdcf42c6 2793 } else {
fa066f01 2794 s->lacp_time = LACP_TIME_SLOW;
cdcf42c6
EJ
2795 }
2796
fa066f01
BP
2797 return s;
2798}
5827ce14 2799
fa066f01
BP
2800static void
2801iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2802{
00794817 2803 int priority, portid, key;
5827ce14 2804
f67f1354
EJ
2805 portid = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
2806 "lacp-port-id",
2807 "0"));
2808 priority =
2809 atoi(ovsrec_interface_get_other_config_value(iface->cfg,
2810 "lacp-port-priority",
2811 "0"));
2812 key = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
2813 "lacp-aggregation-key",
2814 "0"));
fa066f01
BP
2815
2816 if (portid <= 0 || portid > UINT16_MAX) {
892815f5 2817 portid = iface->ofp_port;
5827ce14
EJ
2818 }
2819
fa066f01
BP
2820 if (priority <= 0 || priority > UINT16_MAX) {
2821 priority = UINT16_MAX;
2822 }
5827ce14 2823
00794817
BP
2824 if (key < 0 || key > UINT16_MAX) {
2825 key = 0;
5827ce14 2826 }
00794817 2827
fa066f01 2828 s->name = iface->name;
fa066f01
BP
2829 s->id = portid;
2830 s->priority = priority;
00794817 2831 s->key = key;
bb5bc6c0
BP
2832}
2833
c25c91fd 2834static void
76ed83fc
BP
2835port_configure_bond(struct port *port, struct bond_settings *s,
2836 uint32_t *bond_stable_ids)
c25c91fd 2837{
f620b43a 2838 const char *detect_s;
7a673515 2839 struct iface *iface;
1670c579 2840 int miimon_interval;
76ed83fc 2841 size_t i;
c25c91fd 2842
fa066f01 2843 s->name = port->name;
4df08875 2844 s->balance = BM_AB;
4c57c3bc
EJ
2845 if (port->cfg->bond_mode) {
2846 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2847 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2848 port->name, port->cfg->bond_mode,
2849 bond_mode_to_string(s->balance));
2850 }
2851 } else {
2852 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2853
4df08875
EJ
2854 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
2855 * active-backup. At some point we should remove this warning. */
4c57c3bc 2856 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
4df08875
EJ
2857 " in previous versions, the default bond_mode was"
2858 " balance-slb", port->name,
4c57c3bc 2859 bond_mode_to_string(s->balance));
f620b43a 2860 }
6c2d2a9f
BP
2861 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2862 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2863 "please use another bond type or disable flood_vlans",
2864 port->name);
2865 }
bb5bc6c0 2866
f67f1354
EJ
2867 miimon_interval =
2868 atoi(ovsrec_port_get_other_config_value(port->cfg,
2869 "bond-miimon-interval", "0"));
1670c579
EJ
2870 if (miimon_interval <= 0) {
2871 miimon_interval = 200;
f620b43a
BP
2872 }
2873
f67f1354
EJ
2874 detect_s = ovsrec_port_get_other_config_value(port->cfg,
2875 "bond-detect-mode",
2876 "carrier");
1670c579
EJ
2877 if (!strcmp(detect_s, "carrier")) {
2878 miimon_interval = 0;
2879 } else if (strcmp(detect_s, "miimon")) {
2880 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2881 "defaulting to carrier", port->name, detect_s);
2882 miimon_interval = 0;
f620b43a
BP
2883 }
2884
fa066f01
BP
2885 s->up_delay = MAX(0, port->cfg->bond_updelay);
2886 s->down_delay = MAX(0, port->cfg->bond_downdelay);
f67f1354
EJ
2887 s->basis = atoi(ovsrec_port_get_other_config_value(port->cfg,
2888 "bond-hash-basis",
2889 "0"));
fa066f01 2890 s->rebalance_interval = atoi(
f67f1354
EJ
2891 ovsrec_port_get_other_config_value(port->cfg,
2892 "bond-rebalance-interval",
2893 "10000"));
bc1b010c 2894 if (s->rebalance_interval && s->rebalance_interval < 1000) {
fa066f01 2895 s->rebalance_interval = 1000;
f620b43a
BP
2896 }
2897
fa066f01 2898 s->fake_iface = port->cfg->bond_fake_iface;
7a673515 2899
76ed83fc 2900 i = 0;
7a673515 2901 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
632e2b95
EJ
2902 long long stable_id;
2903
f67f1354
EJ
2904 stable_id =
2905 atoll(ovsrec_interface_get_other_config_value(iface->cfg,
2906 "bond-stable-id",
2907 "0"));
632e2b95 2908 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
76ed83fc 2909 stable_id = iface->ofp_port;
632e2b95 2910 }
76ed83fc 2911 bond_stable_ids[i++] = stable_id;
1670c579
EJ
2912
2913 netdev_set_miimon_interval(iface->netdev, miimon_interval);
064af421
BP
2914 }
2915}
06b592bc
EJ
2916
2917/* Returns true if 'port' is synthetic, that is, if we constructed it locally
2918 * instead of obtaining it from the database. */
2919static bool
2920port_is_synthetic(const struct port *port)
2921{
2922 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2923}
064af421
BP
2924\f
2925/* Interface functions. */
2926
76343538 2927static struct iface *
a740f0de 2928iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
064af421 2929{
4a1ee6ae 2930 struct bridge *br = port->bridge;
064af421 2931 struct iface *iface;
a740f0de 2932 char *name = if_cfg->name;
064af421 2933
ec6fde61 2934 iface = xzalloc(sizeof *iface);
064af421 2935 iface->port = port;
064af421 2936 iface->name = xstrdup(name);
892815f5 2937 iface->ofp_port = -1;
064af421 2938 iface->tag = tag_create_random();
0c6aea3f 2939 iface->netdev = NULL;
149f577a 2940 iface->cfg = if_cfg;
c1f15723 2941 iface->need_refresh = true;
064af421 2942
ebea37cc 2943 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2457b24f 2944
83db7968 2945 list_push_back(&port->ifaces, &iface->port_elem);
83db7968 2946
064af421
BP
2947 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2948
76343538 2949 return iface;
064af421
BP
2950}
2951
2952static void
2953iface_destroy(struct iface *iface)
2954{
2955 if (iface) {
2956 struct port *port = iface->port;
2957 struct bridge *br = port->bridge;
c17f0d5e 2958
892815f5
BP
2959 if (br->ofproto && iface->ofp_port >= 0) {
2960 ofproto_port_unregister(br->ofproto, iface->ofp_port);
5827ce14
EJ
2961 }
2962
892815f5
BP
2963 if (iface->ofp_port >= 0) {
2964 hmap_remove(&br->ifaces, &iface->ofp_port_node);
064af421
BP
2965 }
2966
83db7968 2967 list_remove(&iface->port_elem);
ebea37cc 2968 hmap_remove(&br->iface_by_name, &iface->name_node);
064af421 2969
0c6aea3f 2970 netdev_close(iface->netdev);
064af421 2971
a740f0de
JG
2972 free(iface->name);
2973 free(iface);
064af421
BP
2974 }
2975}
2976
2977static struct iface *
2978iface_lookup(const struct bridge *br, const char *name)
2979{
ebea37cc
BP
2980 struct iface *iface;
2981
2982 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2983 &br->iface_by_name) {
2984 if (!strcmp(iface->name, name)) {
2985 return iface;
2986 }
2987 }
2988
2989 return NULL;
064af421
BP
2990}
2991
e8fe3026
EJ
2992static struct iface *
2993iface_find(const char *name)
2994{
2995 const struct bridge *br;
2996
764072fd 2997 HMAP_FOR_EACH (br, node, &all_bridges) {
e8fe3026
EJ
2998 struct iface *iface = iface_lookup(br, name);
2999
3000 if (iface) {
3001 return iface;
3002 }
3003 }
3004 return NULL;
3005}
3006
064af421 3007static struct iface *
892815f5 3008iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
064af421 3009{
d9a8717a
BP
3010 struct iface *iface;
3011
892815f5
BP
3012 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
3013 hash_int(ofp_port, 0), &br->ifaces) {
3014 if (iface->ofp_port == ofp_port) {
d9a8717a
BP
3015 return iface;
3016 }
3017 }
3018 return NULL;
064af421 3019}
557d8e6c 3020
52df17e7
BP
3021/* Set Ethernet address of 'iface', if one is specified in the configuration
3022 * file. */
3023static void
3024iface_set_mac(struct iface *iface)
3025{
76343538 3026 uint8_t ea[ETH_ADDR_LEN];
52df17e7 3027
ede2fd6d
BP
3028 if (!strcmp(iface->type, "internal")
3029 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
892815f5 3030 if (iface->ofp_port == OFPP_LOCAL) {
ede2fd6d
BP
3031 VLOG_ERR("interface %s: ignoring mac in Interface record "
3032 "(use Bridge record to set local port's mac)",
3033 iface->name);
3034 } else if (eth_addr_is_multicast(ea)) {
52df17e7
BP
3035 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3036 iface->name);
52df17e7 3037 } else {
4d678233 3038 int error = netdev_set_etheraddr(iface->netdev, ea);
52df17e7
BP
3039 if (error) {
3040 VLOG_ERR("interface %s: setting MAC failed (%s)",
3041 iface->name, strerror(error));
3042 }
3043 }
3044 }
3045}
c1c9c9c4 3046
bcd49a45
BP
3047/* Sets the ofport column of 'if_cfg' to 'ofport'. */
3048static void
3049iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
3050{
cfea354b 3051 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
bcd49a45
BP
3052 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
3053 }
3054}
3055
3fc5a86a
BP
3056/* Clears all of the fields in 'if_cfg' that indicate interface status, and
3057 * sets the "ofport" field to -1.
3058 *
3059 * This is appropriate when 'if_cfg''s interface cannot be created or is
3060 * otherwise invalid. */
3061static void
3062iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3063{
3064 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3065 iface_set_ofport(if_cfg, -1);
3066 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
3067 ovsrec_interface_set_admin_state(if_cfg, NULL);
3068 ovsrec_interface_set_duplex(if_cfg, NULL);
3069 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3070 ovsrec_interface_set_link_state(if_cfg, NULL);
3071 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3072 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
b9380396 3073 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3fc5a86a
BP
3074 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3075 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3076 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3077 }
3078}
3079
43776b8f
BP
3080/* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
3081 *
3082 * The value strings in '*shash' are taken directly from values[], not copied,
3083 * so the caller should not modify or free them. */
c1c9c9c4
BP
3084static void
3085shash_from_ovs_idl_map(char **keys, char **values, size_t n,
3086 struct shash *shash)
3087{
3088 size_t i;
3089
3090 shash_init(shash);
3091 for (i = 0; i < n; i++) {
3092 shash_add(shash, keys[i], values[i]);
3093 }
3094}
3095
ea763e0e
EJ
3096/* Creates 'keys' and 'values' arrays from 'shash'.
3097 *
3098 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
3099 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
3100 * are populated with with strings taken directly from 'shash' and thus have
3101 * the same ownership of the key-value pairs in shash.
3102 */
3103static void
3104shash_to_ovs_idl_map(struct shash *shash,
3105 char ***keys, char ***values, size_t *n)
3106{
3107 size_t i, count;
3108 char **k, **v;
3109 struct shash_node *sn;
3110
3111 count = shash_count(shash);
3112
3113 k = xmalloc(count * sizeof *k);
3114 v = xmalloc(count * sizeof *v);
3115
3116 i = 0;
3117 SHASH_FOR_EACH(sn, shash) {
3118 k[i] = sn->name;
3119 v[i] = sn->data;
3120 i++;
3121 }
3122
3123 *n = count;
3124 *keys = k;
3125 *values = v;
3126}
3127
c1c9c9c4
BP
3128struct iface_delete_queues_cbdata {
3129 struct netdev *netdev;
44fca7f9 3130 const struct ovsdb_datum *queues;
c1c9c9c4
BP
3131};
3132
3133static bool
44fca7f9 3134queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
c1c9c9c4 3135{
44fca7f9 3136 union ovsdb_atom atom;
c1c9c9c4 3137
44fca7f9
BP
3138 atom.integer = target;
3139 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
c1c9c9c4
BP
3140}
3141
3142static void
3143iface_delete_queues(unsigned int queue_id,
3144 const struct shash *details OVS_UNUSED, void *cbdata_)
3145{
3146 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3147
44fca7f9 3148 if (!queue_ids_include(cbdata->queues, queue_id)) {
c1c9c9c4
BP
3149 netdev_delete_queue(cbdata->netdev, queue_id);
3150 }
3151}
3152
3153static void
66da9bef 3154iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
c1c9c9c4 3155{
8b36f51e
EJ
3156 struct ofpbuf queues_buf;
3157
3158 ofpbuf_init(&queues_buf, 0);
3159
daa8bd2b 3160 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
c1c9c9c4
BP
3161 netdev_set_qos(iface->netdev, NULL, NULL);
3162 } else {
3163 struct iface_delete_queues_cbdata cbdata;
3164 struct shash details;
6a6e60bd 3165 bool queue_zero;
c1c9c9c4
BP
3166 size_t i;
3167
3168 /* Configure top-level Qos for 'iface'. */
3169 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
3170 qos->n_other_config, &details);
3171 netdev_set_qos(iface->netdev, qos->type, &details);
3172 shash_destroy(&details);
3173
3174 /* Deconfigure queues that were deleted. */
3175 cbdata.netdev = iface->netdev;
44fca7f9
BP
3176 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3177 OVSDB_TYPE_UUID);
c1c9c9c4
BP
3178 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3179
3180 /* Configure queues for 'iface'. */
6a6e60bd 3181 queue_zero = false;
c1c9c9c4
BP
3182 for (i = 0; i < qos->n_queues; i++) {
3183 const struct ovsrec_queue *queue = qos->value_queues[i];
3184 unsigned int queue_id = qos->key_queues[i];
3185
6a6e60bd
BP
3186 if (queue_id == 0) {
3187 queue_zero = true;
3188 }
3189
8b36f51e
EJ
3190 if (queue->n_dscp == 1) {
3191 struct ofproto_port_queue *port_queue;
3192
3193 port_queue = ofpbuf_put_uninit(&queues_buf,
3194 sizeof *port_queue);
3195 port_queue->queue = queue_id;
3196 port_queue->dscp = queue->dscp[0];
3197 }
3198
c1c9c9c4
BP
3199 shash_from_ovs_idl_map(queue->key_other_config,
3200 queue->value_other_config,
3201 queue->n_other_config, &details);
3202 netdev_set_queue(iface->netdev, queue_id, &details);
3203 shash_destroy(&details);
3204 }
6a6e60bd 3205 if (!queue_zero) {
2c999774
BP
3206 shash_init(&details);
3207 netdev_set_queue(iface->netdev, 0, &details);
3208 shash_destroy(&details);
6a6e60bd 3209 }
c1c9c9c4 3210 }
fa066f01 3211
8b36f51e
EJ
3212 if (iface->ofp_port >= 0) {
3213 const struct ofproto_port_queue *port_queues = queues_buf.data;
3214 size_t n_queues = queues_buf.size / sizeof *port_queues;
3215
3216 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3217 port_queues, n_queues);
3218 }
3219
fa066f01
BP
3220 netdev_set_policing(iface->netdev,
3221 iface->cfg->ingress_policing_rate,
3222 iface->cfg->ingress_policing_burst);
8b36f51e
EJ
3223
3224 ofpbuf_uninit(&queues_buf);
c1c9c9c4 3225}
b31bcf60
EJ
3226
3227static void
66da9bef 3228iface_configure_cfm(struct iface *iface)
b31bcf60 3229{
93b8df38 3230 const struct ovsrec_interface *cfg = iface->cfg;
86dc6501 3231 const char *extended_str, *opstate_str;
189cb9e4 3232 const char *cfm_ccm_vlan;
a5610457 3233 struct cfm_settings s;
b31bcf60 3234
144216a3 3235 if (!cfg->n_cfm_mpid) {
892815f5 3236 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
b31bcf60
EJ
3237 return;
3238 }
3239
a5610457 3240 s.mpid = *cfg->cfm_mpid;
f67f1354
EJ
3241 s.interval = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
3242 "cfm_interval",
3243 "0"));
3244 cfm_ccm_vlan = ovsrec_interface_get_other_config_value(iface->cfg,
3245 "cfm_ccm_vlan",
3246 "0");
3247 s.ccm_pcp = atoi(ovsrec_interface_get_other_config_value(iface->cfg,
3248 "cfm_ccm_pcp",
3249 "0"));
a5610457
EJ
3250 if (s.interval <= 0) {
3251 s.interval = 1000;
b31bcf60 3252 }
b31bcf60 3253
189cb9e4
EJ
3254 if (!strcasecmp("random", cfm_ccm_vlan)) {
3255 s.ccm_vlan = CFM_RANDOM_VLAN;
3256 } else {
3257 s.ccm_vlan = atoi(cfm_ccm_vlan);
3258 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3259 s.ccm_vlan = 0;
3260 }
3261 }
3262
f67f1354
EJ
3263 extended_str = ovsrec_interface_get_other_config_value(iface->cfg,
3264 "cfm_extended",
3265 "false");
ef9819b5
EJ
3266 s.extended = !strcasecmp("true", extended_str);
3267
f67f1354
EJ
3268 opstate_str = ovsrec_interface_get_other_config_value(iface->cfg,
3269 "cfm_opstate",
3270 "up");
86dc6501
EJ
3271 s.opup = !strcasecmp("up", opstate_str);
3272
a5610457 3273 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
b31bcf60 3274}
0b8024eb 3275
cfea354b
BP
3276/* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3277 * instead of obtaining it from the database. */
3278static bool
3279iface_is_synthetic(const struct iface *iface)
3280{
3281 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3282}
f125905c 3283
064af421
BP
3284\f
3285/* Port mirroring. */
3286
dd0d105c
BP
3287static struct mirror *
3288mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3289{
fa066f01 3290 struct mirror *m;
dd0d105c 3291
fa066f01
BP
3292 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3293 if (uuid_equals(uuid, &m->uuid)) {
dd0d105c
BP
3294 return m;
3295 }
3296 }
3297 return NULL;
3298}
3299
064af421 3300static void
fa066f01 3301bridge_configure_mirrors(struct bridge *br)
064af421 3302{
fa066f01
BP
3303 const struct ovsdb_datum *mc;
3304 unsigned long *flood_vlans;
3305 struct mirror *m, *next;
3306 size_t i;
064af421 3307
dd0d105c 3308 /* Get rid of deleted mirrors. */
fa066f01
BP
3309 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3310 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3311 union ovsdb_atom atom;
3312
3313 atom.uuid = m->uuid;
3314 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3315 mirror_destroy(m);
064af421
BP
3316 }
3317 }
3318
dd0d105c 3319 /* Add new mirrors and reconfigure existing ones. */
37e7f427 3320 for (i = 0; i < br->cfg->n_mirrors; i++) {
fa066f01 3321 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
dd0d105c 3322 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
fa066f01
BP
3323 if (!m) {
3324 m = mirror_create(br, cfg);
064af421 3325 }
9d24de3b
JP
3326 m->cfg = cfg;
3327 if (!mirror_configure(m)) {
fa066f01 3328 mirror_destroy(m);
064af421
BP
3329 }
3330 }
f2d7fd66 3331
8f30d09a 3332 /* Update flooded vlans (for RSPAN). */
fa066f01
BP
3333 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3334 br->cfg->n_flood_vlans);
3335 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3336 bitmap_free(flood_vlans);
064af421
BP
3337}
3338
fa066f01
BP
3339static struct mirror *
3340mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
064af421
BP
3341{
3342 struct mirror *m;
064af421 3343
fa066f01 3344 m = xzalloc(sizeof *m);
8bbc128e 3345 m->uuid = cfg->header_.uuid;
fa066f01 3346 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
064af421 3347 m->bridge = br;
dd0d105c 3348 m->name = xstrdup(cfg->name);
37e7f427 3349
fa066f01 3350 return m;
064af421
BP
3351}
3352
3353static void
3354mirror_destroy(struct mirror *m)
3355{
3356 if (m) {
3357 struct bridge *br = m->bridge;
064af421 3358
fa066f01
BP
3359 if (br->ofproto) {
3360 ofproto_mirror_unregister(br->ofproto, m);
064af421
BP
3361 }
3362
fa066f01 3363 hmap_remove(&br->mirrors, &m->hmap_node);
786880a5 3364 free(m->name);
064af421 3365 free(m);
064af421
BP
3366 }
3367}
3368
3369static void
fa066f01
BP
3370mirror_collect_ports(struct mirror *m,
3371 struct ovsrec_port **in_ports, int n_in_ports,
3372 void ***out_portsp, size_t *n_out_portsp)
064af421 3373{
fa066f01
BP
3374 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3375 size_t n_out_ports = 0;
064af421
BP
3376 size_t i;
3377
fa066f01
BP
3378 for (i = 0; i < n_in_ports; i++) {
3379 const char *name = in_ports[i]->name;
3380 struct port *port = port_lookup(m->bridge, name);
3381 if (port) {
3382 out_ports[n_out_ports++] = port;
064af421 3383 } else {
37e7f427
BP
3384 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3385 "port %s", m->bridge->name, m->name, name);
064af421
BP
3386 }
3387 }
fa066f01
BP
3388 *out_portsp = out_ports;
3389 *n_out_portsp = n_out_ports;
064af421
BP
3390}
3391
3392static bool
9d24de3b 3393mirror_configure(struct mirror *m)
064af421 3394{
9d24de3b 3395 const struct ovsrec_mirror *cfg = m->cfg;
fa066f01 3396 struct ofproto_mirror_settings s;
064af421 3397
dd0d105c
BP
3398 /* Set name. */
3399 if (strcmp(cfg->name, m->name)) {
3400 free(m->name);
3401 m->name = xstrdup(cfg->name);
3402 }
fa066f01 3403 s.name = m->name;
dd0d105c 3404
fa066f01 3405 /* Get output port or VLAN. */
37e7f427 3406 if (cfg->output_port) {
fa066f01 3407 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
abe529af 3408 if (!s.out_bundle) {
37e7f427
BP
3409 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3410 m->bridge->name, m->name);
fa066f01 3411 return false;
064af421 3412 }
fa066f01 3413 s.out_vlan = UINT16_MAX;
064af421 3414
37e7f427
BP
3415 if (cfg->output_vlan) {
3416 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3417 "output vlan; ignoring output vlan",
3418 m->bridge->name, m->name);
064af421 3419 }
37e7f427 3420 } else if (cfg->output_vlan) {
fa066f01
BP
3421 /* The database should prevent invalid VLAN values. */
3422 s.out_bundle = NULL;
3423 s.out_vlan = *cfg->output_vlan;
064af421 3424 } else {
37e7f427
BP
3425 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3426 m->bridge->name, m->name);
fa066f01 3427 return false;
064af421
BP
3428 }
3429
fa066f01 3430 /* Get port selection. */
939ff267 3431 if (cfg->select_all) {
fa066f01
BP
3432 size_t n_ports = hmap_count(&m->bridge->ports);
3433 void **ports = xmalloc(n_ports * sizeof *ports);
abe529af 3434 struct port *port;
fa066f01
BP
3435 size_t i;
3436
3437 i = 0;
8052fb14 3438 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
fa066f01 3439 ports[i++] = port;
939ff267 3440 }
fa066f01
BP
3441
3442 s.srcs = ports;
3443 s.n_srcs = n_ports;
3444
3445 s.dsts = ports;
3446 s.n_dsts = n_ports;
939ff267 3447 } else {
fa066f01
BP
3448 /* Get ports, dropping ports that don't exist.
3449 * The IDL ensures that there are no duplicates. */
939ff267 3450 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
fa066f01 3451 &s.srcs, &s.n_srcs);
939ff267 3452 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
fa066f01 3453 &s.dsts, &s.n_dsts);
064af421
BP
3454 }
3455
fa066f01
BP
3456 /* Get VLAN selection. */
3457 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3458
3459 /* Configure. */
3460 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3461
064af421 3462 /* Clean up. */
fa066f01
BP
3463 if (s.srcs != s.dsts) {
3464 free(s.dsts);
3465 }
3466 free(s.srcs);
3467 free(s.src_vlans);
3468
3469 return true;
064af421 3470}
52a90c29
BP
3471\f
3472/* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3473 *
3474 * This is deprecated. It is only for compatibility with broken device drivers
3475 * in old versions of Linux that do not properly support VLANs when VLAN
3476 * devices are not used. When broken device drivers are no longer in
3477 * widespread use, we will delete these interfaces. */
3478
3479static void **blocks;
3480static size_t n_blocks, allocated_blocks;
3481
3482/* Adds 'block' to a list of blocks that have to be freed with free() when the
3483 * VLAN splinters are reconfigured. */
3484static void
3485register_block(void *block)
3486{
3487 if (n_blocks >= allocated_blocks) {
3488 blocks = x2nrealloc(blocks, &allocated_blocks, sizeof *blocks);
3489 }
3490 blocks[n_blocks++] = block;
3491}
3492
3493/* Frees all of the blocks registered with register_block(). */
3494static void
3495free_registered_blocks(void)
3496{
3497 size_t i;
3498
3499 for (i = 0; i < n_blocks; i++) {
3500 free(blocks[i]);
3501 }
3502 n_blocks = 0;
3503}
3504
3505/* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3506 * otherwise. */
3507static bool
3508vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3509{
3510 const char *value;
3511
f67f1354
EJ
3512 value = ovsrec_interface_get_other_config_value(iface_cfg,
3513 "enable-vlan-splinters",
3514 "");
52a90c29
BP
3515 return !strcmp(value, "true");
3516}
3517
3518/* Figures out the set of VLANs that are in use for the purpose of VLAN
3519 * splinters.
3520 *
3521 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3522 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3523 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3524 * with free().
3525 *
3526 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3527 * use, returns NULL.
3528 *
3529 * Updates 'vlan_splinters_enabled_anywhere'. */
3530static unsigned long int *
3531collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3532{
3533 unsigned long int *splinter_vlans;
3534 struct sset splinter_ifaces;
3535 const char *real_dev_name;
3536 struct shash *real_devs;
3537 struct shash_node *node;
3538 struct bridge *br;
3539 size_t i;
3540
7c70698f
BP
3541 /* Free space allocated for synthesized ports and interfaces, since we're
3542 * in the process of reconstructing all of them. */
3543 free_registered_blocks();
3544
45c580a3 3545 splinter_vlans = bitmap_allocate(4096);
52a90c29 3546 sset_init(&splinter_ifaces);
45c580a3 3547 vlan_splinters_enabled_anywhere = false;
52a90c29
BP
3548 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3549 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3550 size_t j;
3551
3552 for (j = 0; j < br_cfg->n_ports; j++) {
3553 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3554 int k;
3555
3556 for (k = 0; k < port_cfg->n_interfaces; k++) {
3557 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3558
3559 if (vlan_splinters_is_enabled(iface_cfg)) {
45c580a3 3560 vlan_splinters_enabled_anywhere = true;
52a90c29 3561 sset_add(&splinter_ifaces, iface_cfg->name);
52a90c29
BP
3562 vlan_bitmap_from_array__(port_cfg->trunks,
3563 port_cfg->n_trunks,
3564 splinter_vlans);
3565 }
3566 }
45c580a3
BP
3567
3568 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
3569 bitmap_set1(splinter_vlans, *port_cfg->tag);
3570 }
52a90c29
BP
3571 }
3572 }
3573
45c580a3
BP
3574 if (!vlan_splinters_enabled_anywhere) {
3575 free(splinter_vlans);
52a90c29
BP
3576 sset_destroy(&splinter_ifaces);
3577 return NULL;
3578 }
3579
3580 HMAP_FOR_EACH (br, node, &all_bridges) {
3581 if (br->ofproto) {
3582 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
3583 }
3584 }
3585
3586 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
3587 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
3588 * device to be created for it. */
3589 bitmap_set0(splinter_vlans, 0);
3590 bitmap_set0(splinter_vlans, 4095);
3591
3592 /* Delete all VLAN devices that we don't need. */
3593 vlandev_refresh();
3594 real_devs = vlandev_get_real_devs();
3595 SHASH_FOR_EACH (node, real_devs) {
3596 const struct vlan_real_dev *real_dev = node->data;
3597 const struct vlan_dev *vlan_dev;
3598 bool real_dev_has_splinters;
3599
3600 real_dev_has_splinters = sset_contains(&splinter_ifaces,
3601 real_dev->name);
3602 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
3603 if (!real_dev_has_splinters
3604 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
3605 struct netdev *netdev;
3606
3607 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
3608 if (!netdev_get_in4(netdev, NULL, NULL) ||
3609 !netdev_get_in6(netdev, NULL)) {
3610 vlandev_del(vlan_dev->name);
3611 } else {
3612 /* It has an IP address configured, so we don't own
3613 * it. Don't delete it. */
3614 }
3615 netdev_close(netdev);
3616 }
3617 }
3618
3619 }
3620 }
3621
3622 /* Add all VLAN devices that we need. */
3623 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
3624 int vid;
3625
3626 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3627 if (!vlandev_get_name(real_dev_name, vid)) {
3628 vlandev_add(real_dev_name, vid);
3629 }
3630 }
3631 }
3632
3633 vlandev_refresh();
3634
3635 sset_destroy(&splinter_ifaces);
3636
3637 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
3638 free(splinter_vlans);
3639 return NULL;
3640 }
3641 return splinter_vlans;
3642}
3643
3644/* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
3645 * ofproto. */
3646static void
3647configure_splinter_port(struct port *port)
3648{
3649 struct ofproto *ofproto = port->bridge->ofproto;
3650 uint16_t realdev_ofp_port;
3651 const char *realdev_name;
3652 struct iface *vlandev, *realdev;
3653
3654 ofproto_bundle_unregister(port->bridge->ofproto, port);
3655
3656 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
3657 port_elem);
3658
f67f1354
EJ
3659 realdev_name = ovsrec_port_get_other_config_value(port->cfg,
3660 "realdev", NULL);
52a90c29
BP
3661 realdev = iface_lookup(port->bridge, realdev_name);
3662 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
3663
3664 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
3665 *port->cfg->tag);
3666}
3667
3668static struct ovsrec_port *
3669synthesize_splinter_port(const char *real_dev_name,
3670 const char *vlan_dev_name, int vid)
3671{
3672 struct ovsrec_interface *iface;
3673 struct ovsrec_port *port;
3674
3675 iface = xzalloc(sizeof *iface);
3676 iface->name = xstrdup(vlan_dev_name);
3677 iface->type = "system";
3678
3679 port = xzalloc(sizeof *port);
3680 port->interfaces = xmemdup(&iface, sizeof iface);
3681 port->n_interfaces = 1;
3682 port->name = xstrdup(vlan_dev_name);
3683 port->vlan_mode = "splinter";
3684 port->tag = xmalloc(sizeof *port->tag);
3685 *port->tag = vid;
3686 port->key_other_config = xmalloc(sizeof *port->key_other_config);
3687 port->key_other_config[0] = "realdev";
3688 port->value_other_config = xmalloc(sizeof *port->value_other_config);
3689 port->value_other_config[0] = xstrdup(real_dev_name);
3690 port->n_other_config = 1;
3691
3692 register_block(iface);
3693 register_block(iface->name);
3694 register_block(port);
3695 register_block(port->interfaces);
3696 register_block(port->name);
3697 register_block(port->tag);
3698 register_block(port->key_other_config);
3699 register_block(port->value_other_config);
3700 register_block(port->value_other_config[0]);
3701
3702 return port;
3703}
3704
3705/* For each interface with 'br' that has VLAN splinters enabled, adds a
3706 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
3707 * 1-bit in the 'splinter_vlans' bitmap. */
3708static void
3709add_vlan_splinter_ports(struct bridge *br,
3710 const unsigned long int *splinter_vlans,
3711 struct shash *ports)
3712{
3713 size_t i;
3714
52a90c29
BP
3715 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
3716 * we're modifying 'ports'. */
3717 for (i = 0; i < br->cfg->n_ports; i++) {
3718 const char *name = br->cfg->ports[i]->name;
3719 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
3720 size_t j;
3721
3722 for (j = 0; j < port_cfg->n_interfaces; j++) {
3723 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
3724
3725 if (vlan_splinters_is_enabled(iface_cfg)) {
3726 const char *real_dev_name;
3727 uint16_t vid;
3728
3729 real_dev_name = iface_cfg->name;
3730 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
3731 const char *vlan_dev_name;
3732
3733 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
3734 if (vlan_dev_name
3735 && !shash_find(ports, vlan_dev_name)) {
3736 shash_add(ports, vlan_dev_name,
3737 synthesize_splinter_port(
3738 real_dev_name, vlan_dev_name, vid));
3739 }
3740 }
3741 }
3742 }
3743 }
3744}
9d24de3b
JP
3745
3746static void
3747mirror_refresh_stats(struct mirror *m)
3748{
3749 struct ofproto *ofproto = m->bridge->ofproto;
3750 uint64_t tx_packets, tx_bytes;
3751 char *keys[2];
3752 int64_t values[2];
3753 size_t stat_cnt = 0;
3754
3755 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
3756 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
3757 return;
3758 }
3759
3760 if (tx_packets != UINT64_MAX) {
3761 keys[stat_cnt] = "tx_packets";
3762 values[stat_cnt] = tx_packets;
3763 stat_cnt++;
3764 }
3765 if (tx_bytes != UINT64_MAX) {
3766 keys[stat_cnt] = "tx_bytes";
3767 values[stat_cnt] = tx_bytes;
3768 stat_cnt++;
3769 }
3770
3771 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);
3772}