2 * Copyright (c) 2015 Nicira, Inc.
3 * Copyright (c) 2014 WindRiver, Inc.
4 * Copyright (c) 2015 Avaya, Inc.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at:
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
19 /* Implementation of Auto Attach.
20 * Based on sample implementation in 802.1ab. Above copyright and license
21 * applies to all modifications.
23 * - No support for multiple bridge.
24 * - Auto Attach state machine not implemented.
25 * - Auto Attach and LLDP code are bundled together. The plan is to decoupled
31 #include <arpa/inet.h>
33 #include <netinet/in.h>
36 #include <sys/types.h>
37 #include "dynamic-string.h"
40 #include "lldp/lldpd.h"
41 #include "lldp/lldpd-structs.h"
43 #include "openvswitch/types.h"
45 #include "poll-loop.h"
49 #include "openvswitch/vlog.h"
51 VLOG_DEFINE_THIS_MODULE(ovs_lldp);
53 #define LLDP_PROTOCOL_ID 0x0000
54 #define LLDP_PROTOCOL_VERSION 0x00
55 #define LLDP_TYPE_CONFIG 0x00
56 #define LLDP_CHASSIS_TTL 120
57 #define ETH_TYPE_LLDP 0x88cc
58 #define MINIMUM_ETH_PACKET_SIZE 68
60 #define AA_STATUS_MULTIPLE \
61 AA_STATUS(ACTIVE,2,Active) \
62 AA_STATUS(REJECT_GENERIC,3,Reject (Generic)) \
63 AA_STATUS(REJECT_AA_RES_NOTAVAIL,4,Reject (AA resources unavailable)) \
64 AA_STATUS(REJECT_INVALID,6,Reject (Invalid)) \
65 AA_STATUS(REJECT_VLAN_RES_UNAVAIL,8,Reject (VLAN resources unavailable)) \
66 AA_STATUS(REJECT_VLAN_APP_ISSUE,9,Reject (Application interaction issue)) \
67 AA_STATUS(PENDING,255,Pending)
70 #define AA_STATUS(NAME, VALUE, STR) AA_STATUS_##NAME = VALUE,
76 /* Internal structure for an Auto Attach mapping.
78 struct aa_mapping_internal {
79 struct hmap_node hmap_node_isid;
80 struct hmap_node hmap_node_aux;
84 enum aa_status status;
87 static struct ovs_mutex mutex = OVS_MUTEX_INITIALIZER;
89 /* Hash map of all LLDP instances keyed by name (port at the moment).
91 static struct hmap all_lldps__ = HMAP_INITIALIZER(&all_lldps__);
92 static struct hmap *const all_lldps OVS_GUARDED_BY(mutex) = &all_lldps__;
94 /* Hash map of all the Auto Attach mappings. Global at the moment (but will
95 * be per bridge). Used when adding a new port to a bridge so that we can
96 * properly install all the configured mapping on the port and export them
97 * To the Auto Attach server via LLDP.
99 static struct hmap all_mappings__ = HMAP_INITIALIZER(&all_mappings__);
100 static struct hmap *const all_mappings OVS_GUARDED_BY(mutex) = &all_mappings__;
102 static struct lldp_aa_element_system_id system_id_null;
104 /* Convert an LLDP chassis ID to a string.
107 chassisid_to_string(uint8_t *array, size_t len, char **str)
111 *str = xmalloc(len * 3);
113 for (i = 0; i < len; i++) {
114 snprintf(&(*str)[i * 3], 4, "%02x:", array[i]);
116 (*str)[(i * 3) - 1] = '\0';
119 /* Find an Auto Attach mapping keyed by I-SID.
121 static struct aa_mapping_internal *
122 mapping_find_by_isid(struct lldp *lldp, uint32_t isid)
125 struct aa_mapping_internal *m;
127 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node_isid, hash_int(isid, 0),
128 &lldp->mappings_by_isid) {
129 if (isid == m->isid) {
137 /* Find an Auto Attach mapping keyed by aux. aux is an opaque pointer created
138 * by the bridge that refers to an OVSDB mapping record.
140 static struct aa_mapping_internal *
141 mapping_find_by_aux(struct lldp *lldp, const void *aux) OVS_REQUIRES(mutex)
143 struct aa_mapping_internal *m;
145 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node_aux, hash_pointer(aux, 0),
146 &lldp->mappings_by_aux) {
155 /* Convert an Auto Attach request status to a string.
158 aa_status_to_str(uint8_t status)
161 #define AA_STATUS(NAME, VALUE, STR) case AA_STATUS_##NAME: return #STR;
164 default: return "Undefined";
168 /* Display LLDP and Auto Attach statistics.
171 aa_print_lldp_and_aa_stats(struct ds *ds, struct lldp *lldp)
174 struct lldpd_hardware *hw;
176 ds_put_format(ds, "Statistics: %s\n", lldp->name);
182 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
183 ds_put_format(ds, "\ttx cnt: %"PRIu64"\n", hw->h_tx_cnt);
184 ds_put_format(ds, "\trx cnt: %"PRIu64"\n", hw->h_rx_cnt);
185 ds_put_format(ds, "\trx discarded cnt: %"PRIu64"\n",
186 hw->h_rx_discarded_cnt);
187 ds_put_format(ds, "\trx unrecognized cnt: %"PRIu64"\n",
188 hw->h_rx_unrecognized_cnt);
189 ds_put_format(ds, "\tageout cnt: %"PRIu64"\n", hw->h_ageout_cnt);
190 ds_put_format(ds, "\tinsert cnt: %"PRIu64"\n", hw->h_insert_cnt);
191 ds_put_format(ds, "\tdelete cnt: %"PRIu64"\n", hw->h_delete_cnt);
192 ds_put_format(ds, "\tdrop cnt: %"PRIu64"\n", hw->h_drop_cnt);
197 aa_print_element_status_port(struct ds *ds, struct lldpd_hardware *hw)
199 struct lldpd_port *port;
201 LIST_FOR_EACH (port, p_entries, &hw->h_rports) {
202 if (memcmp(&port->p_element.system_id,
204 sizeof port->p_element.system_id)) {
205 static char *none_str = "<None>";
206 char *id = none_str, *descr = none_str, *system = none_str;
208 if (port->p_chassis) {
209 if (port->p_chassis->c_id_len > 0) {
210 chassisid_to_string(port->p_chassis->c_id,
211 port->p_chassis->c_id_len, &id);
214 descr = port->p_chassis->c_descr
215 ? port->p_chassis->c_descr : none_str;
218 chassisid_to_string((uint8_t *) &port->p_element.system_id,
219 sizeof port->p_element.system_id, &system);
221 ds_put_format(ds, "\tAuto Attach Primary Server Id: %s\n", id);
222 ds_put_format(ds, "\tAuto Attach Primary Server Descr: %s\n",
224 ds_put_format(ds, "\tAuto Attach Primary Server System Id: %s\n",
233 /* Auto Attach server broadcast an LLDP message periodically. Display
234 * the discovered server.
237 aa_print_element_status(struct ds *ds, struct lldp *lldp) OVS_REQUIRES(mutex)
239 struct lldpd_hardware *hw;
241 ds_put_format(ds, "LLDP: %s\n", lldp->name);
247 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
248 aa_print_element_status_port(ds, hw);
253 aa_print_isid_status_port_isid(struct lldp *lldp, struct lldpd_port *port)
256 struct lldpd_aa_isid_vlan_maps_tlv *mapping;
258 if (list_is_empty(&port->p_isid_vlan_maps)) {
262 LIST_FOR_EACH (mapping, m_entries, &port->p_isid_vlan_maps) {
263 uint32_t isid = mapping->isid_vlan_data.isid;
264 struct aa_mapping_internal *m = mapping_find_by_isid(lldp, isid);
266 VLOG_INFO("h_rport: isid=%u, vlan=%u, status=%d",
268 mapping->isid_vlan_data.vlan,
269 mapping->isid_vlan_data.status);
271 /* Update the status of our internal state for the mapping. */
273 VLOG_INFO("Setting status for ISID=%"PRIu32" to %"PRIu16,
274 isid, mapping->isid_vlan_data.status);
275 m->status = mapping->isid_vlan_data.status;
277 VLOG_WARN("Couldn't find mapping for I-SID=%"PRIu32, isid);
283 aa_print_isid_status_port(struct lldp *lldp, struct lldpd_hardware *hw)
286 struct lldpd_port *port;
288 LIST_FOR_EACH (port, p_entries, &hw->h_rports) {
289 aa_print_isid_status_port_isid(lldp, port);
293 /* The Auto Attach server will broadcast the status of the configured mappings
294 * via LLDP. Display the status.
297 aa_print_isid_status(struct ds *ds, struct lldp *lldp) OVS_REQUIRES(mutex)
299 struct lldpd_hardware *hw;
300 struct aa_mapping_internal *m;
306 ds_put_format(ds, "LLDP: %s\n", lldp->name);
308 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
309 aa_print_isid_status_port(lldp, hw);
312 ds_put_format(ds, "%-8s %-4s %-11s %-8s\n",
317 ds_put_format(ds, "-------- ---- ----------- --------\n");
319 HMAP_FOR_EACH (m, hmap_node_isid, &lldp->mappings_by_isid) {
320 ds_put_format(ds, "%-8"PRIu32" %-4"PRIu16" %-11s %-11s\n",
321 m->isid, m->vlan, "Switch", aa_status_to_str(m->status));
326 aa_unixctl_status(struct unixctl_conn *conn, int argc OVS_UNUSED,
327 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
331 struct ds ds = DS_EMPTY_INITIALIZER;
333 ovs_mutex_lock(&mutex);
335 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
336 aa_print_element_status(&ds, lldp);
338 unixctl_command_reply(conn, ds_cstr(&ds));
341 ovs_mutex_unlock(&mutex);
345 aa_unixctl_show_isid(struct unixctl_conn *conn, int argc OVS_UNUSED,
346 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
350 struct ds ds = DS_EMPTY_INITIALIZER;
352 ovs_mutex_lock(&mutex);
354 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
355 aa_print_isid_status(&ds, lldp);
357 unixctl_command_reply(conn, ds_cstr(&ds));
360 ovs_mutex_unlock(&mutex);
364 aa_unixctl_statistics(struct unixctl_conn *conn, int argc OVS_UNUSED,
365 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
368 struct ds ds = DS_EMPTY_INITIALIZER;
371 ovs_mutex_lock(&mutex);
373 /* Cycle through all ports and dump the stats for each one */
374 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
375 aa_print_lldp_and_aa_stats(&ds, lldp);
378 ovs_mutex_unlock(&mutex);
380 unixctl_command_reply(conn, ds_cstr(&ds));
383 /* An Auto Attach mapping was configured. Populate the corresponding
384 * structures in the LLDP hardware.
387 update_mapping_on_lldp(struct lldp *lldp, struct lldpd_hardware *hardware,
388 struct aa_mapping_internal *m)
390 struct lldpd_aa_isid_vlan_maps_tlv *lm = xzalloc(sizeof *lm);
392 if (hardware->h_ifname) {
393 VLOG_INFO("\t\t hardware->h_ifname=%s", hardware->h_ifname);
396 lm->isid_vlan_data.isid = m->isid;
397 lm->isid_vlan_data.vlan = m->vlan;
399 list_push_back(&hardware->h_lport.p_isid_vlan_maps, &lm->m_entries);
401 /* TODO Should be done in the Auto Attach state machine when a mapping goes
402 * from "pending" to "active".
404 struct bridge_aa_vlan *node = xmalloc(sizeof *node);
406 node->port_name = xstrdup(hardware->h_ifname);
407 node->vlan = m->vlan;
408 node->oper = BRIDGE_AA_VLAN_OPER_ADD;
410 list_push_back(&lldp->active_mapping_queue, &node->list_node);
413 /* Bridge will poll the list of VLAN that needs to be auto configure based on
414 * the Auto Attach mappings that have been exchanged with the server.
417 aa_get_vlan_queued(struct ovs_list *list)
421 ovs_mutex_lock(&mutex);
423 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
424 struct bridge_aa_vlan *node, *node_next;
426 LIST_FOR_EACH_SAFE (node,
429 &lldp->active_mapping_queue) {
430 struct bridge_aa_vlan *copy;
432 copy = xmalloc(sizeof *copy);
433 copy->port_name = xstrdup(node->port_name);
434 copy->vlan = node->vlan;
435 copy->oper = node->oper;
437 list_push_back(list, ©->list_node);
440 list_remove(&node->list_node);
441 free(node->port_name);
446 ovs_mutex_unlock(&mutex);
451 /* Bridge will poll whether or not VLAN have been auto-configured.
454 aa_get_vlan_queue_size(void)
457 unsigned int size = 0;
459 ovs_mutex_lock(&mutex);
461 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
462 size += list_size(&lldp->active_mapping_queue);
465 ovs_mutex_unlock(&mutex);
470 /* Configure Auto Attach.
473 aa_configure(const struct aa_settings *s)
477 ovs_mutex_lock(&mutex);
479 /* TODO Change all instances for now */
480 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
481 struct lldpd_chassis *chassis;
483 LIST_FOR_EACH (chassis, list, &lldp->lldpd->g_chassis.list) {
484 /* System Description */
485 if (chassis->c_descr) {
486 free(chassis->c_descr);
488 chassis->c_descr = s->system_description[0] ?
489 xstrdup(s->system_description) : xstrdup(PACKAGE_STRING);
492 if (chassis->c_name) {
493 free(chassis->c_name);
495 chassis->c_name = xstrdup(s->system_name);
499 ovs_mutex_unlock(&mutex);
504 /* Add a new Auto Attach mapping.
507 aa_mapping_register(void *aux, const struct aa_mapping_settings *s)
509 struct aa_mapping_internal *bridge_m;
512 VLOG_INFO("Adding mapping ISID=%"PRIu32", VLAN=%"PRIu16", aux=%p",
513 s->isid, s->vlan, aux);
515 ovs_mutex_lock(&mutex);
517 /* TODO These mappings should be stores per bridge. This is used
518 * When a port is added. Auto Attach mappings need to be added on this
521 bridge_m = xzalloc(sizeof *bridge_m);
522 bridge_m->isid = s->isid;
523 bridge_m->vlan = s->vlan;
525 bridge_m->status = AA_STATUS_PENDING;
526 hmap_insert(all_mappings, &bridge_m->hmap_node_isid,
527 hash_int(bridge_m->isid, 0));
530 /* Update mapping on the all the LLDP instances. */
531 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
532 struct lldpd_hardware *hw;
533 struct aa_mapping_internal *m;
535 VLOG_INFO("\t lldp->name=%s", lldp->name);
537 if (mapping_find_by_isid(lldp, s->isid)) {
541 m = xzalloc(sizeof *m);
544 m->status = AA_STATUS_PENDING;
546 hmap_insert(&lldp->mappings_by_isid, &m->hmap_node_isid,
547 hash_int(m->isid, 0));
548 hmap_insert(&lldp->mappings_by_aux,
550 hash_pointer(m->aux, 0));
552 /* Configure the mapping on each port of the LLDP stack. */
553 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
554 update_mapping_on_lldp(lldp, hw, m);
558 ovs_mutex_unlock(&mutex);
564 aa_mapping_unregister_mapping(struct lldp *lldp,
565 struct lldpd_hardware *hw,
566 struct aa_mapping_internal *m)
568 struct lldpd_aa_isid_vlan_maps_tlv *lm, *lm_next;
570 LIST_FOR_EACH_SAFE (lm, lm_next, m_entries,
571 &hw->h_lport.p_isid_vlan_maps) {
572 uint32_t isid = lm->isid_vlan_data.isid;
574 if (isid == m->isid) {
575 VLOG_INFO("\t\t Removing lport, isid=%u, vlan=%u",
577 lm->isid_vlan_data.vlan);
579 list_remove(&lm->m_entries);
581 /* TODO Should be done in the AA SM when a mapping goes
582 * from "pending" to "active".
584 struct bridge_aa_vlan *node = xmalloc(sizeof *node);
586 node->port_name = xstrdup(hw->h_ifname);
587 node->vlan = m->vlan;
588 node->oper = BRIDGE_AA_VLAN_OPER_REMOVE;
590 list_push_back(&lldp->active_mapping_queue, &node->list_node);
597 /* Remove an existing Auto Attach mapping.
600 aa_mapping_unregister(void *aux)
604 VLOG_INFO("Removing mapping aux=%p", aux);
606 ovs_mutex_lock(&mutex);
608 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
609 struct lldpd_hardware *hw;
610 struct aa_mapping_internal *m = mapping_find_by_aux(lldp, aux);
612 /* Remove from internal hash tables. */
614 uint32_t isid = m->isid;
615 uint16_t vlan = m->vlan;
616 struct aa_mapping_internal *p = mapping_find_by_isid(lldp, isid);
618 VLOG_INFO("\t Removing mapping ISID=%"PRIu32", VLAN=%"PRIu16
619 " (lldp->name=%s)", isid, vlan, lldp->name);
622 hmap_remove(&lldp->mappings_by_isid, &p->hmap_node_isid);
625 hmap_remove(&lldp->mappings_by_aux, &m->hmap_node_aux);
628 /* Remove from all the lldp instances */
629 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
631 VLOG_INFO("\t\t hardware->h_ifname=%s", hw->h_ifname);
634 aa_mapping_unregister_mapping(lldp, hw, m);
637 /* Remove from the all_mappings */
638 HMAP_FOR_EACH (m, hmap_node_isid, all_mappings) {
639 if (m && isid == m->isid && vlan == m->vlan) {
640 hmap_remove(all_mappings, &m->hmap_node_isid);
647 ovs_mutex_unlock(&mutex);
655 unixctl_command_register("autoattach/status", "[bridge]", 0, 1,
656 aa_unixctl_status, NULL);
657 unixctl_command_register("autoattach/show-isid", "[bridge]", 0, 1,
658 aa_unixctl_show_isid, NULL);
659 unixctl_command_register("autoattach/statistics", "[bridge]", 0, 1,
660 aa_unixctl_statistics, NULL);
663 /* Returns true if 'lldp' should process packets from 'flow'. Sets
664 * fields in 'wc' that were used to make the determination.
667 lldp_should_process_flow(const struct flow *flow)
669 return (flow->dl_type == htons(ETH_TYPE_LLDP));
673 /* Process an LLDP packet that was received on a bridge port.
676 lldp_process_packet(struct lldp *lldp, const struct dp_packet *p)
679 lldpd_recv(lldp->lldpd,
680 (struct lldpd_hardware *)
681 lldp->lldpd->g_hardware.h_entries.next,
687 /* This code is called periodically to check if the LLDP module has an LLDP
688 * message it wishes to send. It is called several times every second.
691 lldp_should_send_packet(struct lldp *cfg) OVS_EXCLUDED(mutex)
695 ovs_mutex_lock(&mutex);
696 ret = timer_expired(&cfg->tx_timer);
697 ovs_mutex_unlock(&mutex);
702 /* Returns the next wake up time.
705 lldp_wake_time(const struct lldp *lldp) OVS_EXCLUDED(mutex)
707 long long int retval;
713 ovs_mutex_lock(&mutex);
714 retval = lldp->tx_timer.t;
715 ovs_mutex_unlock(&mutex);
720 /* Put the monitor thread to sleep until it's next wake time.
723 lldp_wait(struct lldp *lldp) OVS_EXCLUDED(mutex)
725 long long int wake_time = lldp_wake_time(lldp);
726 poll_timer_wait_until(wake_time);
730 /* Prepare the LLDP packet to be sent on a bridge port.
733 lldp_put_packet(struct lldp *lldp, struct dp_packet *packet,
734 uint8_t eth_src[ETH_ADDR_LEN]) OVS_EXCLUDED(mutex)
736 struct lldpd *mylldpd = lldp->lldpd;
737 struct lldpd_hardware *hw = (struct lldpd_hardware *)
738 mylldpd->g_hardware.h_entries.next;
739 uint32_t lldp_size = 0;
740 static const uint8_t eth_addr_lldp[6] =
741 {0x01, 0x80, 0xC2, 0x00, 0x00, 0x0e};
743 ovs_mutex_lock(&mutex);
745 eth_compose(packet, eth_addr_lldp, eth_src, ETH_TYPE_LLDP, 0);
747 lldp_size = lldpd_send(hw, packet);
748 if (lldp_size + ETH_HEADER_LEN < MINIMUM_ETH_PACKET_SIZE) {
749 lldp_size = MINIMUM_ETH_PACKET_SIZE;
752 timer_set_duration(&lldp->tx_timer, lldp->lldpd->g_config.c_tx_interval);
753 ovs_mutex_unlock(&mutex);
756 /* Configures the LLDP stack.
759 lldp_configure(struct lldp *lldp) OVS_EXCLUDED(mutex)
762 ovs_mutex_lock(&mutex);
763 timer_set_expired(&lldp->tx_timer);
764 timer_set_duration(&lldp->tx_timer, LLDP_DEFAULT_TRANSMIT_INTERVAL_MS);
765 lldp->lldpd->g_config.c_tx_interval =
766 LLDP_DEFAULT_TRANSMIT_INTERVAL_MS;
767 ovs_mutex_unlock(&mutex);
773 /* Create an LLDP stack instance. At the moment there is one per bridge port.
776 lldp_create(const struct netdev *netdev,
778 const struct smap *cfg) OVS_EXCLUDED(mutex)
781 struct lldpd_chassis *lchassis;
782 struct lldpd_hardware *hw;
783 struct aa_mapping_internal *m;
785 if (!cfg || !smap_get_bool(cfg, "enable", false)) {
789 lldp = xzalloc(sizeof *lldp);
790 lldp->name = xstrdup(netdev_get_name(netdev));
791 lldp->lldpd = xzalloc(sizeof *lldp->lldpd);
793 hmap_init(&lldp->mappings_by_isid);
794 hmap_init(&lldp->mappings_by_aux);
795 list_init(&lldp->active_mapping_queue);
797 lchassis = xzalloc(sizeof *lchassis);
798 lchassis->c_cap_available = LLDP_CAP_BRIDGE;
799 lchassis->c_cap_enabled = LLDP_CAP_BRIDGE;
800 lchassis->c_id_subtype = LLDP_CHASSISID_SUBTYPE_LLADDR;
801 lchassis->c_id_len = ETH_ADDR_LEN;
802 lchassis->c_id = xmalloc(ETH_ADDR_LEN);
803 netdev_get_etheraddr(netdev, lchassis->c_id);
805 list_init(&lchassis->c_mgmt);
806 lchassis->c_ttl = lldp->lldpd->g_config.c_tx_interval *
807 lldp->lldpd->g_config.c_tx_hold;
808 lchassis->c_ttl = LLDP_CHASSIS_TTL;
809 lldpd_assign_cfg_to_protocols(lldp->lldpd);
810 list_init(&lldp->lldpd->g_chassis.list);
811 list_push_back(&lldp->lldpd->g_chassis.list, &lchassis->list);
813 if ((hw = lldpd_alloc_hardware(lldp->lldpd,
814 (char *) netdev_get_name(netdev),
816 VLOG_WARN("Unable to allocate space for %s",
817 (char *) netdev_get_name(netdev));
821 ovs_refcount_init(&lldp->ref_cnt);
823 hw->h_flags |= IFF_RUNNING;
826 hw->h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME;
827 hw->h_lport.p_id = xstrdup(netdev_get_name(netdev));
829 /* p_id is not necessarily a null terminated string. */
830 hw->h_lport.p_id_len = strlen(netdev_get_name(netdev));
832 /* Auto Attach element tlv */
833 hw->h_lport.p_element.type = LLDP_TLV_AA_ELEM_TYPE_TAG_CLIENT;
834 hw->h_lport.p_element.mgmt_vlan = 0;
835 memcpy(&hw->h_lport.p_element.system_id.system_mac,
836 lchassis->c_id, lchassis->c_id_len);
837 hw->h_lport.p_element.system_id.conn_type =
838 LLDP_TLV_AA_ELEM_CONN_TYPE_SINGLE;
840 hw->h_lport.p_element.system_id.smlt_id = 0;
841 hw->h_lport.p_element.system_id.mlt_id[0] = 0;
842 hw->h_lport.p_element.system_id.mlt_id[1] = 0;
844 list_init(&hw->h_lport.p_isid_vlan_maps);
845 list_init(&lldp->lldpd->g_hardware.h_entries);
846 list_push_back(&lldp->lldpd->g_hardware.h_entries, &hw->h_entries);
848 ovs_mutex_lock(&mutex);
850 /* Update port with Auto Attach mappings configured. */
851 HMAP_FOR_EACH (m, hmap_node_isid, all_mappings) {
852 struct aa_mapping_internal *p;
854 if (mapping_find_by_isid(lldp, m->isid)) {
858 p = xmemdup(m, sizeof *p);
859 hmap_insert(&lldp->mappings_by_isid, &p->hmap_node_isid,
860 hash_int(p->isid, 0));
861 hmap_insert(&lldp->mappings_by_aux,
863 hash_pointer(p->aux, 0));
865 update_mapping_on_lldp(lldp, hw, p);
868 hmap_insert(all_lldps, &lldp->hmap_node,
869 hash_string(netdev_get_name(netdev), 0));
871 ovs_mutex_unlock(&mutex);
878 lldp_create_dummy(void)
881 struct lldpd_chassis *lchassis;
882 struct lldpd_hardware *hw;
884 lldp = xzalloc(sizeof *lldp);
885 lldp->name = "dummy-lldp";
886 lldp->lldpd = xzalloc(sizeof *lldp->lldpd);
888 hmap_init(&lldp->mappings_by_isid);
889 hmap_init(&lldp->mappings_by_aux);
890 list_init(&lldp->active_mapping_queue);
892 lchassis = xzalloc(sizeof *lchassis);
893 lchassis->c_cap_available = LLDP_CAP_BRIDGE;
894 lchassis->c_cap_enabled = LLDP_CAP_BRIDGE;
895 lchassis->c_id_subtype = LLDP_CHASSISID_SUBTYPE_LLADDR;
896 lchassis->c_id_len = ETH_ADDR_LEN;
897 lchassis->c_id = xmalloc(ETH_ADDR_LEN);
899 list_init(&lchassis->c_mgmt);
900 lchassis->c_ttl = LLDP_CHASSIS_TTL;
901 lldpd_assign_cfg_to_protocols(lldp->lldpd);
902 list_init(&lldp->lldpd->g_chassis.list);
903 list_push_back(&lldp->lldpd->g_chassis.list, &lchassis->list);
905 hw = lldpd_alloc_hardware(lldp->lldpd, "dummy-hw", 0);
907 ovs_refcount_init(&lldp->ref_cnt);
909 hw->h_flags |= IFF_RUNNING;
912 hw->h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME;
913 hw->h_lport.p_id = "dummy-port";
915 /* p_id is not necessarily a null terminated string. */
916 hw->h_lport.p_id_len = strlen(hw->h_lport.p_id);
918 /* Auto Attach element tlv */
919 hw->h_lport.p_element.type = LLDP_TLV_AA_ELEM_TYPE_TAG_CLIENT;
920 hw->h_lport.p_element.mgmt_vlan = 0;
921 memcpy(&hw->h_lport.p_element.system_id.system_mac,
922 lchassis->c_id, lchassis->c_id_len);
923 hw->h_lport.p_element.system_id.conn_type =
924 LLDP_TLV_AA_ELEM_CONN_TYPE_SINGLE;
925 hw->h_lport.p_element.system_id.smlt_id = 0;
926 hw->h_lport.p_element.system_id.mlt_id[0] = 0;
927 hw->h_lport.p_element.system_id.mlt_id[1] = 0;
929 list_init(&hw->h_lport.p_isid_vlan_maps);
930 list_init(&lldp->lldpd->g_hardware.h_entries);
931 list_push_back(&lldp->lldpd->g_hardware.h_entries, &hw->h_entries);
936 /* Unreference a specific LLDP instance.
939 lldp_unref(struct lldp *lldp)
945 ovs_mutex_lock(&mutex);
946 if (ovs_refcount_unref_relaxed(&lldp->ref_cnt) != 1) {
947 ovs_mutex_unlock(&mutex);
951 hmap_remove(all_lldps, &lldp->hmap_node);
952 ovs_mutex_unlock(&mutex);
954 lldpd_cleanup(lldp->lldpd);
960 /* Unreference a specific LLDP instance.
963 lldp_ref(const struct lldp *lldp_)
965 struct lldp *lldp = CONST_CAST(struct lldp *, lldp_);
967 ovs_refcount_ref(&lldp->ref_cnt);