2 * Copyright (c) 2014 WindRiver, Inc.
3 * Copyright (c) 2015 Avaya, Inc.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 /* Implementation of Auto Attach.
19 * Based on sample implementation in 802.1ab. Above copyright and license
20 * applies to all modifications.
22 * - No support for multiple bridge.
23 * - Auto Attach state machine not implemented.
24 * - Auto Attach and LLDP code are bundled together. The plan is to decoupled
30 #include <arpa/inet.h>
32 #include <netinet/in.h>
35 #include <sys/types.h>
36 #include "dynamic-string.h"
39 #include "lldp/lldpd.h"
40 #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 array to an integer. I-SID are stored in an array of bytes
105 * in the LLDP hardware structrure.
108 array_to_int(uint8_t *array, size_t len)
113 ovs_assert(len <= sizeof(uint32_t));
115 for (i = 0; i < len; i++) {
116 res = res | (array[len - i - 1] << (i * 8));
122 /* Convert an integer to an array of byte.
125 int_to_array(uint8_t *array, size_t len, uint32_t value)
129 ovs_assert(len <= sizeof(uint32_t));
131 for (i = 0; i < len; i++) {
132 array[len - i - 1] = value >> (8 * i);
136 /* Convert an LLDP chassis ID to a string.
139 chassisid_to_string(uint8_t *array, size_t len, char **str)
143 *str = xmalloc(len * 3);
145 for (i = 0; i < len; i++) {
146 snprintf(&(*str)[i * 3], 4, "%02x:", array[i]);
148 (*str)[(i * 3) - 1] = '\0';
151 /* Find an Auto Attach mapping keyed by I-SID.
153 static struct aa_mapping_internal *
154 mapping_find_by_isid(struct lldp *lldp, const uint64_t isid)
157 struct aa_mapping_internal *m;
159 HMAP_FOR_EACH_IN_BUCKET (m,
161 hash_bytes(&isid, sizeof isid, 0),
162 &lldp->mappings_by_isid) {
163 if (isid == m->isid) {
171 /* Find an Auto Attach mapping keyed by aux. aux is an opaque pointer created
172 * by the bridge that refers to an OVSDB mapping record.
174 static struct aa_mapping_internal *
175 mapping_find_by_aux(struct lldp *lldp, const void *aux) OVS_REQUIRES(mutex)
177 struct aa_mapping_internal *m;
179 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node_aux, hash_pointer(aux, 0),
180 &lldp->mappings_by_aux) {
189 /* Convert an Auto Attach request status to a string.
192 aa_status_to_str(uint8_t status)
195 #define AA_STATUS(NAME, VALUE, STR) case AA_STATUS_##NAME: return #STR;
198 default: return "Undefined";
202 /* Display LLDP and Auto Attach statistics.
205 aa_print_lldp_and_aa_stats(struct ds *ds, struct lldp *lldp)
208 struct lldpd_hardware *hw;
210 ds_put_format(ds, "Statistics: %s\n", lldp->name);
216 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
217 ds_put_format(ds, "\ttx cnt: %"PRIu64"\n", hw->h_tx_cnt);
218 ds_put_format(ds, "\trx cnt: %"PRIu64"\n", hw->h_rx_cnt);
219 ds_put_format(ds, "\trx discarded cnt: %"PRIu64"\n",
220 hw->h_rx_discarded_cnt);
221 ds_put_format(ds, "\trx unrecognized cnt: %"PRIu64"\n",
222 hw->h_rx_unrecognized_cnt);
223 ds_put_format(ds, "\tageout cnt: %"PRIu64"\n", hw->h_ageout_cnt);
224 ds_put_format(ds, "\tinsert cnt: %"PRIu64"\n", hw->h_insert_cnt);
225 ds_put_format(ds, "\tdelete cnt: %"PRIu64"\n", hw->h_delete_cnt);
226 ds_put_format(ds, "\tdrop cnt: %"PRIu64"\n", hw->h_drop_cnt);
231 aa_print_element_status_port(struct ds *ds, struct lldpd_hardware *hw)
233 struct lldpd_port *port;
235 LIST_FOR_EACH (port, p_entries, &hw->h_rports.p_entries) {
236 if (memcmp(&port->p_element.system_id,
238 sizeof port->p_element.system_id)) {
239 static char *none_str = "<None>";
240 char *id = none_str, *descr = none_str, *system = none_str;
242 if (port->p_chassis) {
243 if (port->p_chassis->c_id_len > 0) {
244 chassisid_to_string((uint8_t *) port->p_chassis->c_id,
245 port->p_chassis->c_id_len, &id);
248 descr = port->p_chassis->c_descr
249 ? port->p_chassis->c_descr : none_str;
252 chassisid_to_string((uint8_t *) &port->p_element.system_id,
253 sizeof port->p_element.system_id, &system);
256 "\tAuto Attach Primary Server Id: %s\n",
259 "\tAuto Attach Primary Server Descr: %s\n",
262 "\tAuto Attach Primary Server System Id: %s\n",
271 /* Auto Attach server broadcast an LLDP message periodically. Display
272 * the discovered server.
275 aa_print_element_status(struct ds *ds, struct lldp *lldp) OVS_REQUIRES(mutex)
277 struct lldpd_hardware *hw;
279 ds_put_format(ds, "LLDP: %s\n", lldp->name);
285 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
286 aa_print_element_status_port(ds, hw);
291 aa_print_isid_status_port_isid(struct lldp *lldp, struct lldpd_port *port)
294 struct lldpd_aa_isid_vlan_maps_tlv *mapping;
296 if (list_is_empty(&port->p_isid_vlan_maps.m_entries)) {
300 LIST_FOR_EACH (mapping, m_entries, &port->p_isid_vlan_maps.m_entries) {
301 uint32_t isid = array_to_int(mapping->isid_vlan_data.isid,
302 sizeof mapping->isid_vlan_data.isid);
303 struct aa_mapping_internal *m = mapping_find_by_isid(lldp, isid);
305 VLOG_INFO("h_rport: isid=%u, vlan=%u, status=%d",
307 mapping->isid_vlan_data.vlan,
308 mapping->isid_vlan_data.status);
310 /* Update the status of our internal state for the mapping.
313 VLOG_INFO("Setting status for ISID=%u to %u",
315 mapping->isid_vlan_data.status);
316 m->status = mapping->isid_vlan_data.status;
318 VLOG_WARN("Couldn't find mapping for I-SID=%u", isid);
324 aa_print_isid_status_port(struct lldp *lldp, struct lldpd_hardware *hw)
327 struct lldpd_port *port;
329 LIST_FOR_EACH (port, p_entries, &hw->h_rports.p_entries) {
330 aa_print_isid_status_port_isid(lldp, port);
334 /* The Auto Attach server will broadcast the status of the configured mappings
335 * via LLDP. Display the status.
338 aa_print_isid_status(struct ds *ds, struct lldp *lldp) OVS_REQUIRES(mutex)
340 struct lldpd_hardware *hw;
341 struct aa_mapping_internal *m;
347 ds_put_format(ds, "LLDP: %s\n", lldp->name);
349 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
350 aa_print_isid_status_port(lldp, hw);
353 ds_put_format(ds, "%-8s %-4s %-11s %-8s\n",
358 ds_put_format(ds, "-------- ---- ----------- --------\n");
360 HMAP_FOR_EACH (m, hmap_node_isid, &lldp->mappings_by_isid) {
361 ds_put_format(ds, "%-8ld %-4ld %-11s %-11s\n",
365 aa_status_to_str(m->status));
370 aa_unixctl_status(struct unixctl_conn *conn, int argc OVS_UNUSED,
371 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
375 struct ds ds = DS_EMPTY_INITIALIZER;
377 ovs_mutex_lock(&mutex);
379 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
380 aa_print_element_status(&ds, lldp);
382 unixctl_command_reply(conn, ds_cstr(&ds));
385 ovs_mutex_unlock(&mutex);
389 aa_unixctl_show_isid(struct unixctl_conn *conn, int argc OVS_UNUSED,
390 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
394 struct ds ds = DS_EMPTY_INITIALIZER;
396 ovs_mutex_lock(&mutex);
398 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
399 aa_print_isid_status(&ds, lldp);
401 unixctl_command_reply(conn, ds_cstr(&ds));
404 ovs_mutex_unlock(&mutex);
408 aa_unixctl_statistics(struct unixctl_conn *conn, int argc OVS_UNUSED,
409 const char *argv[] OVS_UNUSED, void *aux OVS_UNUSED)
412 struct ds ds = DS_EMPTY_INITIALIZER;
415 ovs_mutex_lock(&mutex);
417 /* Cycle through all ports and dump the stats for each one */
418 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
419 aa_print_lldp_and_aa_stats(&ds, lldp);
422 ovs_mutex_unlock(&mutex);
424 unixctl_command_reply(conn, ds_cstr(&ds));
427 /* An Auto Attach mapping was configured. Populate the corresponding
428 * structures in the LLDP hardware.
431 update_mapping_on_lldp(struct lldp *lldp, struct lldpd_hardware *hardware,
432 struct aa_mapping_internal *m)
434 struct lldpd_aa_isid_vlan_maps_tlv *lm = xzalloc(sizeof *lm);
436 if (hardware->h_ifname) {
437 VLOG_INFO("\t\t hardware->h_ifname=%s", hardware->h_ifname);
440 int_to_array(lm->isid_vlan_data.isid,
441 ARRAY_SIZE(lm->isid_vlan_data.isid),
443 lm->isid_vlan_data.vlan = m->vlan;
445 list_push_back(&hardware->h_lport.p_isid_vlan_maps.m_entries,
448 /* TODO Should be done in the Auto Attach state machine when a mapping goes
449 * from "pending" to "active".
452 struct bridge_aa_vlan *node = xmalloc(sizeof *node);
454 node->port_name = xstrdup(hardware->h_ifname);
455 node->vlan = m->vlan;
456 node->oper = BRIDGE_AA_VLAN_OPER_ADD;
458 list_push_back(&lldp->active_mapping_queue, &node->list_node);
462 /* Bridge will poll the list of VLAN that needs to be auto configure based on
463 * the Auto Attach mappings that have been exchanged with the server.
466 aa_get_vlan_queued(struct ovs_list *list)
470 ovs_mutex_lock(&mutex);
472 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
473 struct bridge_aa_vlan *node, *node_next;
475 LIST_FOR_EACH_SAFE (node,
478 &lldp->active_mapping_queue) {
479 struct bridge_aa_vlan *copy;
481 copy = xmalloc(sizeof *copy);
482 copy->port_name = xstrdup(node->port_name);
483 copy->vlan = node->vlan;
484 copy->oper = node->oper;
486 list_push_back(list, ©->list_node);
489 list_remove(&node->list_node);
490 free(node->port_name);
495 ovs_mutex_unlock(&mutex);
500 /* Bridge will poll whether or not VLAN have been auto-configured.
503 aa_get_vlan_queue_size(void)
506 unsigned int size = 0;
508 ovs_mutex_lock(&mutex);
510 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
511 size += list_size(&lldp->active_mapping_queue);
514 ovs_mutex_unlock(&mutex);
519 /* Configure Auto Attach.
522 aa_configure(const struct aa_settings *s)
526 ovs_mutex_lock(&mutex);
528 /* TODO Change all instances for now */
529 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
530 struct lldpd_chassis *chassis;
532 LIST_FOR_EACH (chassis, list, &lldp->lldpd->g_chassis.list) {
533 /* System Description */
534 if (chassis->c_descr) {
535 free(chassis->c_descr);
537 chassis->c_descr = s->system_description[0] ?
538 xstrdup(s->system_description) : xstrdup(PACKAGE_STRING);
541 if (chassis->c_name) {
542 free(chassis->c_name);
544 chassis->c_name = xstrdup(s->system_name);
548 ovs_mutex_unlock(&mutex);
553 /* Add a new Auto Attach mapping.
556 aa_mapping_register(void *aux, const struct aa_mapping_settings *s)
558 struct aa_mapping_internal *bridge_m;
561 VLOG_INFO("Adding mapping ISID=%ld, VLAN=%ld, aux=%p", (long int) s->isid,
562 (long int) s->vlan, aux);
564 ovs_mutex_lock(&mutex);
566 /* TODO These mappings should be stores per bridge. This is used
567 * When a port is added. Auto Attach mappings need to be added on this
570 bridge_m = xzalloc(sizeof *bridge_m);
571 bridge_m->isid = s->isid;
572 bridge_m->vlan = s->vlan;
574 bridge_m->status = AA_STATUS_PENDING;
575 hmap_insert(all_mappings,
576 &bridge_m->hmap_node_isid,
577 hash_bytes((const void *) &bridge_m->isid,
578 sizeof bridge_m->isid,
581 /* Update mapping on the all the LLDP instances. */
582 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
583 struct lldpd_hardware *hw;
584 struct aa_mapping_internal *m;
586 VLOG_INFO("\t lldp->name=%s", lldp->name);
588 if (mapping_find_by_isid(lldp, s->isid)) {
592 m = xzalloc(sizeof *m);
595 m->status = AA_STATUS_PENDING;
597 hmap_insert(&lldp->mappings_by_isid,
599 hash_bytes((const void *) &m->isid,
602 hmap_insert(&lldp->mappings_by_aux,
604 hash_pointer(m->aux, 0));
606 /* Configure the mapping on each port of the LLDP stack. */
607 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
608 update_mapping_on_lldp(lldp, hw, m);
612 ovs_mutex_unlock(&mutex);
618 aa_mapping_unregister_mapping(struct lldp *lldp,
619 struct lldpd_hardware *hw,
620 struct aa_mapping_internal *m)
622 struct lldpd_aa_isid_vlan_maps_tlv *lm, *lm_next;
624 LIST_FOR_EACH_SAFE (lm,
627 &hw->h_lport.p_isid_vlan_maps.m_entries) {
628 uint32_t isid = array_to_int(lm->isid_vlan_data.isid,
629 sizeof lm->isid_vlan_data.isid);
631 if (isid == (uint32_t) m->isid) {
632 VLOG_INFO("\t\t Removing lport, isid=%u, vlan=%u",
634 lm->isid_vlan_data.vlan);
636 list_remove(&lm->m_entries);
638 /* TODO Should be done in the AA SM when a mapping goes
639 * from "pending" to "active".
642 struct bridge_aa_vlan *node = xmalloc(sizeof *node);
644 node->port_name = xstrdup(hw->h_ifname);
645 node->vlan = (uint32_t) m->vlan;
646 node->oper = BRIDGE_AA_VLAN_OPER_REMOVE;
648 list_push_back(&lldp->active_mapping_queue, &node->list_node);
656 /* Remove an existing Auto Attach mapping.
659 aa_mapping_unregister(void *aux)
663 VLOG_INFO("Removing mapping aux=%p", aux);
665 ovs_mutex_lock(&mutex);
667 HMAP_FOR_EACH (lldp, hmap_node, all_lldps) {
668 struct lldpd_hardware *hw;
669 struct aa_mapping_internal *m = mapping_find_by_aux(lldp, aux);
670 int64_t isid_tmp = -1, vlan_tmp = -1;
672 /* Remove from internal hash tables. */
674 struct aa_mapping_internal *p =
675 mapping_find_by_isid(lldp, m->isid);
679 VLOG_INFO("\t Removing mapping ISID=%ld, VLAN=%ld (lldp->name=%s)",
680 (long int) m->isid, (long int) m->vlan, lldp->name);
683 hmap_remove(&lldp->mappings_by_isid, &p->hmap_node_isid);
686 hmap_remove(&lldp->mappings_by_aux, &m->hmap_node_aux);
689 /* Remove from all the lldp instances */
690 LIST_FOR_EACH (hw, h_entries, &lldp->lldpd->g_hardware.h_entries) {
692 VLOG_INFO("\t\t hardware->h_ifname=%s", hw->h_ifname);
695 aa_mapping_unregister_mapping(lldp, hw, m);
698 if (isid_tmp >= 0 && vlan_tmp >= 0) {
699 /* Remove from the all_mappings */
700 HMAP_FOR_EACH (m, hmap_node_isid, all_mappings) {
701 if (m && isid_tmp == m->isid && vlan_tmp == m->vlan) {
702 hmap_remove(all_mappings, &m->hmap_node_isid);
710 ovs_mutex_unlock(&mutex);
718 unixctl_command_register("autoattach/status", "[bridge]", 0, 1,
719 aa_unixctl_status, NULL);
720 unixctl_command_register("autoattach/show-isid", "[bridge]", 0, 1,
721 aa_unixctl_show_isid, NULL);
722 unixctl_command_register("autoattach/statistics", "[bridge]", 0, 1,
723 aa_unixctl_statistics, NULL);
726 /* Returns true if 'lldp' should process packets from 'flow'. Sets
727 * fields in 'wc' that were used to make the determination.
730 lldp_should_process_flow(const struct flow *flow)
732 return (flow->dl_type == htons(ETH_TYPE_LLDP));
736 /* Process an LLDP packet that was received on a bridge port.
739 lldp_process_packet(struct lldp *lldp, const struct ofpbuf *p)
742 lldpd_recv(lldp->lldpd,
743 (struct lldpd_hardware *)
744 lldp->lldpd->g_hardware.h_entries.next,
750 /* This code is called periodically to check if the LLDP module has an LLDP
751 * message it wishes to send. It is called several times every second.
754 lldp_should_send_packet(struct lldp *cfg) OVS_EXCLUDED(mutex)
758 ovs_mutex_lock(&mutex);
759 ret = timer_expired(&cfg->tx_timer);
760 ovs_mutex_unlock(&mutex);
765 /* Returns the next wake up time.
768 lldp_wake_time(const struct lldp *lldp) OVS_EXCLUDED(mutex)
770 long long int retval;
776 ovs_mutex_lock(&mutex);
777 retval = lldp->tx_timer.t;
778 ovs_mutex_unlock(&mutex);
783 /* Put the monitor thread to sleep until it's next wake time.
786 lldp_wait(struct lldp *lldp) OVS_EXCLUDED(mutex)
788 long long int wake_time = lldp_wake_time(lldp);
789 poll_timer_wait_until(wake_time);
793 /* Prepare the LLDP packet to be sent on a bridge port.
796 lldp_put_packet(struct lldp *lldp, struct ofpbuf *packet,
797 uint8_t eth_src[ETH_ADDR_LEN]) OVS_EXCLUDED(mutex)
799 struct lldpd *mylldpd = lldp->lldpd;
800 struct lldpd_hardware *hw = (struct lldpd_hardware *)
801 mylldpd->g_hardware.h_entries.next;
802 uint32_t lldp_size = 0;
803 static const uint8_t eth_addr_lldp[6] =
804 {0x01, 0x80, 0xC2, 0x00, 0x00, 0x0e};
806 ovs_mutex_lock(&mutex);
808 eth_compose(packet, eth_addr_lldp, eth_src, ETH_TYPE_LLDP, 0);
810 lldp_size = lldpd_send(hw, packet);
811 if (lldp_size + ETH_HEADER_LEN < MINIMUM_ETH_PACKET_SIZE) {
812 lldp_size = MINIMUM_ETH_PACKET_SIZE;
815 timer_set_duration(&lldp->tx_timer, lldp->lldpd->g_config.c_tx_interval);
816 ovs_mutex_unlock(&mutex);
819 /* Configures the LLDP stack.
822 lldp_configure(struct lldp *lldp) OVS_EXCLUDED(mutex)
825 ovs_mutex_lock(&mutex);
826 timer_set_expired(&lldp->tx_timer);
827 timer_set_duration(&lldp->tx_timer, LLDP_DEFAULT_TRANSMIT_INTERVAL_MS);
828 lldp->lldpd->g_config.c_tx_interval =
829 LLDP_DEFAULT_TRANSMIT_INTERVAL_MS;
830 ovs_mutex_unlock(&mutex);
836 /* Create an LLDP stack instance. At the moment there is one per bridge port.
839 lldp_create(const struct netdev *netdev,
841 const struct smap *cfg) OVS_EXCLUDED(mutex)
844 struct lldpd_chassis *lchassis;
845 struct lldpd_hardware *hw;
846 struct aa_mapping_internal *m;
848 if (!cfg || !smap_get_bool(cfg, "enable", false)) {
852 lldp = xzalloc(sizeof *lldp);
853 lldp->name = xstrdup(netdev_get_name(netdev));
854 lldp->lldpd = xzalloc(sizeof *lldp->lldpd);
856 hmap_init(&lldp->mappings_by_isid);
857 hmap_init(&lldp->mappings_by_aux);
858 list_init(&lldp->active_mapping_queue);
860 lchassis = xzalloc(sizeof *lchassis);
861 lchassis->c_cap_available = LLDP_CAP_BRIDGE;
862 lchassis->c_cap_enabled = LLDP_CAP_BRIDGE;
863 lchassis->c_id_subtype = LLDP_CHASSISID_SUBTYPE_LLADDR;
864 lchassis->c_id_len = ETH_ADDR_LEN;
865 lchassis->c_id = xmalloc(ETH_ADDR_LEN);
866 netdev_get_etheraddr(netdev, (uint8_t *) lchassis->c_id);
868 list_init(&lchassis->c_mgmt.m_entries);
869 lchassis->c_ttl = lldp->lldpd->g_config.c_tx_interval *
870 lldp->lldpd->g_config.c_tx_hold;
871 lchassis->c_ttl = LLDP_CHASSIS_TTL;
872 lldpd_assign_cfg_to_protocols(lldp->lldpd);
873 list_init(&lldp->lldpd->g_chassis.list);
874 list_push_back(&lldp->lldpd->g_chassis.list, &lchassis->list);
876 if ((hw = lldpd_alloc_hardware(lldp->lldpd,
877 (char *) netdev_get_name(netdev),
879 VLOG_WARN("Unable to allocate space for %s",
880 (char *) netdev_get_name(netdev));
884 ovs_refcount_init(&lldp->ref_cnt);
886 hw->h_flags |= IFF_RUNNING;
889 hw->h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME;
890 hw->h_lport.p_id = xstrdup(netdev_get_name(netdev));
892 /* p_id is not necessarily a null terminated string. */
893 hw->h_lport.p_id_len = strlen(netdev_get_name(netdev));
895 /* Auto Attach element tlv */
896 hw->h_lport.p_element.type = LLDP_TLV_AA_ELEM_TYPE_TAG_CLIENT;
897 hw->h_lport.p_element.mgmt_vlan = 0;
898 memcpy(&hw->h_lport.p_element.system_id.system_mac,
899 lchassis->c_id, lchassis->c_id_len);
900 hw->h_lport.p_element.system_id.conn_type =
901 LLDP_TLV_AA_ELEM_CONN_TYPE_SINGLE;
903 hw->h_lport.p_element.system_id.smlt_id = 0;
904 hw->h_lport.p_element.system_id.mlt_id[0] = 0;
905 hw->h_lport.p_element.system_id.mlt_id[1] = 0;
907 list_init(&hw->h_lport.p_isid_vlan_maps.m_entries);
908 list_init(&lldp->lldpd->g_hardware.h_entries);
909 list_push_back(&lldp->lldpd->g_hardware.h_entries, &hw->h_entries);
911 ovs_mutex_lock(&mutex);
913 /* Update port with Auto Attach mappings configured. */
914 HMAP_FOR_EACH (m, hmap_node_isid, all_mappings) {
915 struct aa_mapping_internal *p;
917 if (mapping_find_by_isid(lldp, m->isid)) {
921 p = xmemdup(m, sizeof *p);
922 hmap_insert(&lldp->mappings_by_isid,
924 hash_bytes((const void *) &p->isid,
927 hmap_insert(&lldp->mappings_by_aux,
929 hash_pointer(p->aux, 0));
931 update_mapping_on_lldp(lldp, hw, p);
934 hmap_insert(all_lldps, &lldp->hmap_node,
935 hash_string(netdev_get_name(netdev), 0));
937 ovs_mutex_unlock(&mutex);
944 lldp_create_dummy(void)
947 struct lldpd_chassis *lchassis;
948 struct lldpd_hardware *hw;
950 lldp = xzalloc(sizeof *lldp);
951 lldp->name = "dummy-lldp";
952 lldp->lldpd = xzalloc(sizeof *lldp->lldpd);
954 hmap_init(&lldp->mappings_by_isid);
955 hmap_init(&lldp->mappings_by_aux);
956 list_init(&lldp->active_mapping_queue);
958 lchassis = xzalloc(sizeof *lchassis);
959 lchassis->c_cap_available = LLDP_CAP_BRIDGE;
960 lchassis->c_cap_enabled = LLDP_CAP_BRIDGE;
961 lchassis->c_id_subtype = LLDP_CHASSISID_SUBTYPE_LLADDR;
962 lchassis->c_id_len = ETH_ADDR_LEN;
963 lchassis->c_id = xmalloc(ETH_ADDR_LEN);
965 list_init(&lchassis->c_mgmt.m_entries);
966 lchassis->c_ttl = LLDP_CHASSIS_TTL;
967 lldpd_assign_cfg_to_protocols(lldp->lldpd);
968 list_init(&lldp->lldpd->g_chassis.list);
969 list_push_back(&lldp->lldpd->g_chassis.list, &lchassis->list);
971 if ((hw = lldpd_alloc_hardware(lldp->lldpd,
974 VLOG_WARN("Unable to allocate space for dummy-hw");
978 ovs_refcount_init(&lldp->ref_cnt);
980 hw->h_flags |= IFF_RUNNING;
983 hw->h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME;
984 hw->h_lport.p_id = "dummy-port";
986 /* p_id is not necessarily a null terminated string. */
987 hw->h_lport.p_id_len = strlen(hw->h_lport.p_id);
989 /* Auto Attach element tlv */
990 hw->h_lport.p_element.type = LLDP_TLV_AA_ELEM_TYPE_TAG_CLIENT;
991 hw->h_lport.p_element.mgmt_vlan = 0;
992 memcpy(&hw->h_lport.p_element.system_id.system_mac,
993 lchassis->c_id, lchassis->c_id_len);
994 hw->h_lport.p_element.system_id.conn_type =
995 LLDP_TLV_AA_ELEM_CONN_TYPE_SINGLE;
996 hw->h_lport.p_element.system_id.smlt_id = 0;
997 hw->h_lport.p_element.system_id.mlt_id[0] = 0;
998 hw->h_lport.p_element.system_id.mlt_id[1] = 0;
1000 list_init(&hw->h_lport.p_isid_vlan_maps.m_entries);
1001 list_init(&lldp->lldpd->g_hardware.h_entries);
1002 list_push_back(&lldp->lldpd->g_hardware.h_entries, &hw->h_entries);
1007 /* Unreference a specific LLDP instance.
1010 lldp_unref(struct lldp *lldp)
1016 ovs_mutex_lock(&mutex);
1017 if (ovs_refcount_unref_relaxed(&lldp->ref_cnt) != 1) {
1018 ovs_mutex_unlock(&mutex);
1022 hmap_remove(all_lldps, &lldp->hmap_node);
1023 ovs_mutex_unlock(&mutex);
1025 lldpd_cleanup(lldp->lldpd);
1031 /* Unreference a specific LLDP instance.
1034 lldp_ref(const struct lldp *lldp_)
1036 struct lldp *lldp = CONST_CAST(struct lldp *, lldp_);
1038 ovs_refcount_ref(&lldp->ref_cnt);