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zebra_evpn_mac.c
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Zebra EVPN for VxLAN code
* Copyright (C) 2016, 2017 Cumulus Networks, Inc.
*/
#include <zebra.h>
#include "hash.h"
#include "interface.h"
#include "jhash.h"
#include "memory.h"
#include "prefix.h"
#include "vlan.h"
#include "json.h"
#include "printfrr.h"
#include "zebra/zserv.h"
#include "zebra/debug.h"
#include "zebra/zebra_router.h"
#include "zebra/zebra_errors.h"
#include "zebra/zebra_vrf.h"
#include "zebra/zebra_vxlan.h"
#include "zebra/zebra_vxlan_if.h"
#include "zebra/zebra_evpn.h"
#include "zebra/zebra_evpn_mh.h"
#include "zebra/zebra_evpn_mac.h"
#include "zebra/zebra_evpn_neigh.h"
DEFINE_MTYPE_STATIC(ZEBRA, MAC, "EVPN MAC");
/*
* Return number of valid MACs in an EVPN's MAC hash table - all
* remote MACs and non-internal (auto) local MACs count.
*/
uint32_t num_valid_macs(struct zebra_evpn *zevpn)
{
unsigned int i;
uint32_t num_macs = 0;
struct hash *hash;
struct hash_bucket *hb;
struct zebra_mac *mac;
hash = zevpn->mac_table;
if (!hash)
return num_macs;
for (i = 0; i < hash->size; i++) {
for (hb = hash->index[i]; hb; hb = hb->next) {
mac = (struct zebra_mac *)hb->data;
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)
|| CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)
|| !CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO))
num_macs++;
}
}
return num_macs;
}
uint32_t num_dup_detected_macs(struct zebra_evpn *zevpn)
{
unsigned int i;
uint32_t num_macs = 0;
struct hash *hash;
struct hash_bucket *hb;
struct zebra_mac *mac;
hash = zevpn->mac_table;
if (!hash)
return num_macs;
for (i = 0; i < hash->size; i++) {
for (hb = hash->index[i]; hb; hb = hb->next) {
mac = (struct zebra_mac *)hb->data;
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
num_macs++;
}
}
return num_macs;
}
/* Setup mac_list against the access port. This is done when a mac uses
* the ifp as destination for the first time
*/
static void zebra_evpn_mac_ifp_new(struct zebra_if *zif)
{
if (IS_ZEBRA_DEBUG_EVPN_MH_MAC)
zlog_debug("MAC list created for ifp %s (%u)", zif->ifp->name,
zif->ifp->ifindex);
zif->mac_list = list_new();
listset_app_node_mem(zif->mac_list);
}
/* Unlink local mac from a destination access port */
static void zebra_evpn_mac_ifp_unlink(struct zebra_mac *zmac)
{
struct zebra_if *zif;
struct interface *ifp = zmac->ifp;
if (!ifp)
return;
if (IS_ZEBRA_DEBUG_EVPN_MH_MAC)
zlog_debug("VNI %d MAC %pEA unlinked from ifp %s (%u)",
zmac->zevpn->vni,
&zmac->macaddr,
ifp->name, ifp->ifindex);
zif = ifp->info;
list_delete_node(zif->mac_list, &zmac->ifp_listnode);
zmac->ifp = NULL;
}
/* Free up the mac_list if any as a part of the interface del/cleanup */
void zebra_evpn_mac_ifp_del(struct interface *ifp)
{
struct zebra_if *zif = ifp->info;
struct listnode *node;
struct zebra_mac *zmac;
if (zif->mac_list) {
if (IS_ZEBRA_DEBUG_EVPN_MH_MAC)
zlog_debug("MAC list deleted for ifp %s (%u)",
zif->ifp->name, zif->ifp->ifindex);
for (ALL_LIST_ELEMENTS_RO(zif->mac_list, node, zmac)) {
zebra_evpn_mac_ifp_unlink(zmac);
}
list_delete(&zif->mac_list);
}
}
/* Link local mac to destination access port. This is done only if the
* local mac is associated with a zero ESI i.e. single attach or lacp-bypass
* bridge port member
*/
static void zebra_evpn_mac_ifp_link(struct zebra_mac *zmac,
struct interface *ifp)
{
struct zebra_if *zif;
if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL))
return;
/* already linked to the destination */
if (zmac->ifp == ifp)
return;
/* unlink the mac from any old destination */
if (zmac->ifp)
zebra_evpn_mac_ifp_unlink(zmac);
if (!ifp)
return;
zif = ifp->info;
/* the interface mac_list is created on first mac link attempt */
if (!zif->mac_list)
zebra_evpn_mac_ifp_new(zif);
if (IS_ZEBRA_DEBUG_EVPN_MH_MAC)
zlog_debug("VNI %d MAC %pEA linked to ifp %s (%u)",
zmac->zevpn->vni,
&zmac->macaddr,
ifp->name, ifp->ifindex);
zmac->ifp = ifp;
listnode_init(&zmac->ifp_listnode, zmac);
listnode_add(zif->mac_list, &zmac->ifp_listnode);
}
/* If the mac is a local mac clear links to destination access port */
void zebra_evpn_mac_clear_fwd_info(struct zebra_mac *zmac)
{
zebra_evpn_mac_ifp_unlink(zmac);
memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info));
}
/*
* Install remote MAC into the forwarding plane.
*/
int zebra_evpn_rem_mac_install(struct zebra_evpn *zevpn, struct zebra_mac *mac,
bool was_static)
{
const struct zebra_if *zif, *br_zif;
const struct zebra_vxlan_vni *vni;
bool sticky;
enum zebra_dplane_result res;
const struct interface *br_ifp;
vlanid_t vid;
uint32_t nhg_id;
struct in_addr vtep_ip;
zif = zevpn->vxlan_if->info;
if (!zif)
return -1;
br_ifp = zif->brslave_info.br_if;
if (br_ifp == NULL)
return -1;
vni = zebra_vxlan_if_vni_find(zif, zevpn->vni);
if (!vni)
return -1;
sticky = !!CHECK_FLAG(mac->flags,
(ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW));
/* If nexthop group for the FDB entry is inactive (not programmed in
* the dataplane) the MAC entry cannot be installed
*/
if (mac->es) {
if (!(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE))
return -1;
nhg_id = mac->es->nhg_id;
vtep_ip.s_addr = 0;
} else {
nhg_id = 0;
vtep_ip = mac->fwd_info.r_vtep_ip;
}
br_zif = (const struct zebra_if *)(br_ifp->info);
if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif))
vid = vni->access_vlan;
else
vid = 0;
res = dplane_rem_mac_add(zevpn->vxlan_if, br_ifp, vid, &mac->macaddr,
vni->vni, vtep_ip, sticky, nhg_id, was_static);
if (res != ZEBRA_DPLANE_REQUEST_FAILURE)
return 0;
else
return -1;
}
/*
* Uninstall remote MAC from the forwarding plane.
*/
int zebra_evpn_rem_mac_uninstall(struct zebra_evpn *zevpn,
struct zebra_mac *mac, bool force)
{
const struct zebra_if *zif, *br_zif;
struct zebra_vxlan_vni *vni;
struct in_addr vtep_ip;
const struct interface *ifp, *br_ifp;
vlanid_t vid;
enum zebra_dplane_result res;
/* If the MAC was not installed there is no need to uninstall it */
if (!force && mac->es && !(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE))
return -1;
if (!zevpn->vxlan_if) {
if (IS_ZEBRA_DEBUG_VXLAN)
zlog_debug(
"VNI %u hash %p couldn't be uninstalled - no intf",
zevpn->vni, zevpn);
return -1;
}
zif = zevpn->vxlan_if->info;
if (!zif)
return -1;
br_ifp = zif->brslave_info.br_if;
if (br_ifp == NULL)
return -1;
vni = zebra_vxlan_if_vni_find(zif, zevpn->vni);
if (!vni)
return -1;
br_zif = (const struct zebra_if *)br_ifp->info;
if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif))
vid = vni->access_vlan;
else
vid = 0;
ifp = zevpn->vxlan_if;
vtep_ip = mac->fwd_info.r_vtep_ip;
res = dplane_rem_mac_del(ifp, br_ifp, vid, &mac->macaddr, vni->vni,
vtep_ip);
if (res != ZEBRA_DPLANE_REQUEST_FAILURE)
return 0;
else
return -1;
}
/*
* Decrement neighbor refcount of MAC; uninstall and free it if
* appropriate.
*/
void zebra_evpn_deref_ip2mac(struct zebra_evpn *zevpn, struct zebra_mac *mac)
{
if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO))
return;
/* If all remote neighbors referencing a remote MAC go away,
* we need to uninstall the MAC.
*/
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)
&& remote_neigh_count(mac) == 0) {
zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/);
zebra_evpn_es_mac_deref_entry(mac);
UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE);
}
/* If no references, delete the MAC. */
if (!zebra_evpn_mac_in_use(mac))
zebra_evpn_mac_del(zevpn, mac);
}
static void zebra_evpn_mac_get_access_info(struct zebra_mac *mac,
struct interface **p_ifp,
vlanid_t *vid)
{
struct zebra_vxlan_vni *vni;
/* if the mac is associated with an ES we must get the access
* info from the ES
*/
if (mac->es) {
struct zebra_if *zif;
/* get the access port from the es */
*p_ifp = mac->es->zif ? mac->es->zif->ifp : NULL;
/* get the vlan from the EVPN */
if (mac->zevpn->vxlan_if) {
zif = mac->zevpn->vxlan_if->info;
vni = zebra_vxlan_if_vni_find(zif, mac->zevpn->vni);
*vid = vni->access_vlan;
} else {
*vid = 0;
}
} else {
struct zebra_ns *zns;
*vid = mac->fwd_info.local.vid;
zns = zebra_ns_lookup(mac->fwd_info.local.ns_id);
*p_ifp = if_lookup_by_index_per_ns(zns,
mac->fwd_info.local.ifindex);
}
}
#define MAC_BUF_SIZE 256
static char *zebra_evpn_zebra_mac_flag_dump(struct zebra_mac *mac, char *buf,
size_t len)
{
if (mac->flags == 0) {
snprintfrr(buf, len, "None ");
return buf;
}
snprintfrr(
buf, len, "%s%s%s%s%s%s%s%s%s%s%s%s",
CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) ? "LOC " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) ? "REM " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO) ? "AUTO " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? "STICKY " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_RMAC) ? "REM Router "
: "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) ? "Default GW " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) ? "REM DEF GW "
: "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE) ? "DUP " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_FPM_SENT) ? "FPM " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)
? "PEER Active "
: "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY) ? "PROXY " : "",
CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)
? "LOC Inactive "
: "");
return buf;
}
static void zebra_evpn_dad_mac_auto_recovery_exp(struct event *t)
{
struct zebra_vrf *zvrf = NULL;
struct zebra_mac *mac = NULL;
struct zebra_evpn *zevpn = NULL;
struct listnode *node = NULL;
struct zebra_neigh *nbr = NULL;
mac = EVENT_ARG(t);
/* since this is asynchronous we need sanity checks*/
zvrf = zebra_vrf_lookup_by_id(mac->zevpn->vrf_id);
if (!zvrf)
return;
zevpn = zebra_evpn_lookup(mac->zevpn->vni);
if (!zevpn)
return;
mac = zebra_evpn_mac_lookup(zevpn, &mac->macaddr);
if (!mac)
return;
if (IS_ZEBRA_DEBUG_VXLAN) {
char mac_buf[MAC_BUF_SIZE];
zlog_debug(
"%s: duplicate addr mac %pEA flags %slearn count %u host count %u auto recovery expired",
__func__, &mac->macaddr,
zebra_evpn_zebra_mac_flag_dump(mac, mac_buf,
sizeof(mac_buf)),
mac->dad_count, listcount(mac->neigh_list));
}
/* Remove all IPs as duplicate associcated with this MAC */
for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) {
if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) {
if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL))
ZEBRA_NEIGH_SET_INACTIVE(nbr);
else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE))
zebra_evpn_rem_neigh_install(
zevpn, nbr, false /*was_static*/);
}
UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE);
nbr->dad_count = 0;
nbr->detect_start_time.tv_sec = 0;
nbr->dad_dup_detect_time = 0;
}
UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE);
mac->dad_count = 0;
mac->detect_start_time.tv_sec = 0;
mac->detect_start_time.tv_usec = 0;
mac->dad_dup_detect_time = 0;
mac->dad_mac_auto_recovery_timer = NULL;
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
/* Inform to BGP */
if (zebra_evpn_mac_send_add_to_client(zevpn->vni, &mac->macaddr,
mac->flags, mac->loc_seq,
mac->es))
return;
/* Process all neighbors associated with this MAC. */
zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0,
0 /*es_change*/);
} else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac);
/* Install the entry. */
zebra_evpn_rem_mac_install(zevpn, mac, false /* was_static */);
}
}
static void zebra_evpn_dup_addr_detect_for_mac(struct zebra_vrf *zvrf,
struct zebra_mac *mac,
struct in_addr vtep_ip,
bool do_dad, bool *is_dup_detect,
bool is_local)
{
struct zebra_neigh *nbr;
struct listnode *node = NULL;
struct timeval elapsed = {0, 0};
bool reset_params = false;
if (!(zebra_evpn_do_dup_addr_detect(zvrf) && do_dad))
return;
/* MAC is detected as duplicate,
* Local MAC event -> hold on advertising to BGP.
* Remote MAC event -> hold on installing it.
*/
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) {
if (IS_ZEBRA_DEBUG_VXLAN) {
char mac_buf[MAC_BUF_SIZE];
zlog_debug(
"%s: duplicate addr MAC %pEA flags %sskip update to client, learn count %u recover time %u",
__func__, &mac->macaddr,
zebra_evpn_zebra_mac_flag_dump(mac, mac_buf,
sizeof(mac_buf)),
mac->dad_count, zvrf->dad_freeze_time);
}
/* For duplicate MAC do not update
* client but update neigh due to
* this MAC update.
*/
if (zvrf->dad_freeze)
*is_dup_detect = true;
return;
}
/* Check if detection time (M-secs) expired.
* Reset learn count and detection start time.
*/
monotime_since(&mac->detect_start_time, &elapsed);
reset_params = (elapsed.tv_sec > zvrf->dad_time);
if (is_local && !reset_params) {
/* RFC-7432: A PE/VTEP that detects a MAC mobility
* event via LOCAL learning starts an M-second timer.
*
* NOTE: This is the START of the probe with count is
* 0 during LOCAL learn event.
* (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time)
*/
reset_params = !mac->dad_count;
}
if (reset_params) {
if (IS_ZEBRA_DEBUG_VXLAN) {
char mac_buf[MAC_BUF_SIZE];
zlog_debug(
"%s: duplicate addr MAC %pEA flags %sdetection time passed, reset learn count %u",
__func__, &mac->macaddr,
zebra_evpn_zebra_mac_flag_dump(mac, mac_buf,
sizeof(mac_buf)),
mac->dad_count);
}
mac->dad_count = 0;
/* Start dup. addr detection (DAD) start time,
* ONLY during LOCAL learn.
*/
if (is_local)
monotime(&mac->detect_start_time);
} else if (!is_local) {
/* For REMOTE MAC, increment detection count
* ONLY while in probe window, once window passed,
* next local learn event should trigger DAD.
*/
mac->dad_count++;
}
/* For LOCAL MAC learn event, once count is reset above via either
* initial/start detection time or passed the probe time, the count
* needs to be incremented.
*/
if (is_local)
mac->dad_count++;
if (mac->dad_count >= zvrf->dad_max_moves) {
flog_warn(EC_ZEBRA_DUP_MAC_DETECTED,
"VNI %u: MAC %pEA detected as duplicate during %s VTEP %pI4",
mac->zevpn->vni, &mac->macaddr,
is_local ? "local update, last" :
"remote update, from", &vtep_ip);
SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE);
/* Capture Duplicate detection time */
mac->dad_dup_detect_time = monotime(NULL);
/* Mark all IPs/Neighs as duplicate
* associcated with this MAC
*/
for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) {
/* Ony Mark IPs which are Local */
if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL))
continue;
SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE);
nbr->dad_dup_detect_time = monotime(NULL);
flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED,
"VNI %u: MAC %pEA IP %pIA detected as duplicate during %s update, inherit duplicate from MAC",
mac->zevpn->vni, &mac->macaddr, &nbr->ip,
is_local ? "local" : "remote");
}
/* Start auto recovery timer for this MAC */
EVENT_OFF(mac->dad_mac_auto_recovery_timer);
if (zvrf->dad_freeze && zvrf->dad_freeze_time) {
if (IS_ZEBRA_DEBUG_VXLAN) {
char mac_buf[MAC_BUF_SIZE];
zlog_debug(
"%s: duplicate addr MAC %pEA flags %sauto recovery time %u start",
__func__, &mac->macaddr,
zebra_evpn_zebra_mac_flag_dump(
mac, mac_buf, sizeof(mac_buf)),
zvrf->dad_freeze_time);
}
event_add_timer(zrouter.master,
zebra_evpn_dad_mac_auto_recovery_exp,
mac, zvrf->dad_freeze_time,
&mac->dad_mac_auto_recovery_timer);
}
/* In case of local update, do not inform to client (BGPd),
* upd_neigh for neigh sequence change.
*/
if (zvrf->dad_freeze)
*is_dup_detect = true;
}
}
/*
* Print a specific MAC entry.
*/
void zebra_evpn_print_mac(struct zebra_mac *mac, void *ctxt, json_object *json)
{
struct vty *vty;
struct zebra_neigh *n = NULL;
struct listnode *node = NULL;
char buf1[ETHER_ADDR_STRLEN];
char buf2[INET6_ADDRSTRLEN];
struct zebra_vrf *zvrf;
struct timeval detect_start_time = {0, 0};
char timebuf[MONOTIME_STRLEN];
char thread_buf[EVENT_TIMER_STRLEN];
time_t uptime;
char up_str[MONOTIME_STRLEN];
zvrf = zebra_vrf_get_evpn();
vty = (struct vty *)ctxt;
prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1));
uptime = monotime(NULL);
uptime -= mac->uptime;
frrtime_to_interval(uptime, up_str, sizeof(up_str));
if (json) {
json_object *json_mac = json_object_new_object();
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
struct interface *ifp;
vlanid_t vid;
zebra_evpn_mac_get_access_info(mac, &ifp, &vid);
json_object_string_add(json_mac, "type", "local");
if (ifp) {
json_object_string_add(json_mac, "intf",
ifp->name);
json_object_int_add(json_mac, "ifindex",
ifp->ifindex);
}
if (vid)
json_object_int_add(json_mac, "vlan", vid);
} else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
json_object_string_add(json_mac, "type", "remote");
if (mac->es)
json_object_string_add(json_mac, "remoteEs",
mac->es->esi_str);
else
json_object_string_addf(
json_mac, "remoteVtep", "%pI4",
&mac->fwd_info.r_vtep_ip);
} else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO))
json_object_string_add(json_mac, "type", "auto");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY))
json_object_boolean_true_add(json_mac, "stickyMac");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI))
json_object_boolean_true_add(json_mac, "sviMac");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW))
json_object_boolean_true_add(json_mac,
"defaultGateway");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW))
json_object_boolean_true_add(json_mac,
"remoteGatewayMac");
json_object_string_add(json_mac, "uptime", up_str);
json_object_int_add(json_mac, "localSequence", mac->loc_seq);
json_object_int_add(json_mac, "remoteSequence", mac->rem_seq);
json_object_int_add(json_mac, "detectionCount", mac->dad_count);
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
json_object_boolean_true_add(json_mac, "isDuplicate");
else
json_object_boolean_false_add(json_mac, "isDuplicate");
json_object_int_add(json_mac, "syncNeighCount",
mac->sync_neigh_cnt);
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE))
json_object_boolean_true_add(json_mac, "localInactive");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY))
json_object_boolean_true_add(json_mac, "peerProxy");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE))
json_object_boolean_true_add(json_mac, "peerActive");
if (mac->hold_timer)
json_object_string_add(
json_mac, "peerActiveHold",
event_timer_to_hhmmss(thread_buf,
sizeof(thread_buf),
mac->hold_timer));
if (mac->es)
json_object_string_add(json_mac, "esi",
mac->es->esi_str);
/* print all the associated neigh */
if (!listcount(mac->neigh_list))
json_object_string_add(json_mac, "neighbors", "none");
else {
json_object *json_active_nbrs = json_object_new_array();
json_object *json_inactive_nbrs =
json_object_new_array();
json_object *json_nbrs = json_object_new_object();
for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) {
if (IS_ZEBRA_NEIGH_ACTIVE(n))
json_object_array_add(
json_active_nbrs,
json_object_new_string(
ipaddr2str(
&n->ip, buf2,
sizeof(buf2))));
else
json_object_array_add(
json_inactive_nbrs,
json_object_new_string(
ipaddr2str(
&n->ip, buf2,
sizeof(buf2))));
}
json_object_object_add(json_nbrs, "active",
json_active_nbrs);
json_object_object_add(json_nbrs, "inactive",
json_inactive_nbrs);
json_object_object_add(json_mac, "neighbors",
json_nbrs);
}
json_object_object_add(json, buf1, json_mac);
} else {
vty_out(vty, "MAC: %s\n", buf1);
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
struct interface *ifp;
vlanid_t vid;
zebra_evpn_mac_get_access_info(mac, &ifp, &vid);
if (mac->es)
vty_out(vty, " ESI: %s\n", mac->es->esi_str);
if (ifp)
vty_out(vty, " Intf: %s(%u)", ifp->name,
ifp->ifindex);
else
vty_out(vty, " Intf: -");
vty_out(vty, " VLAN: %u", vid);
} else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
if (mac->es)
vty_out(vty, " Remote ES: %s",
mac->es->esi_str);
else
vty_out(vty, " Remote VTEP: %pI4",
&mac->fwd_info.r_vtep_ip);
} else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) {
vty_out(vty, " Auto Mac ");
}
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY))
vty_out(vty, " Sticky Mac ");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI))
vty_out(vty, " SVI-Mac ");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW))
vty_out(vty, " Default-gateway Mac ");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW))
vty_out(vty, " Remote-gateway Mac ");
vty_out(vty, "\n");
vty_out(vty, " Sync-info: neigh#: %u", mac->sync_neigh_cnt);
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE))
vty_out(vty, " local-inactive");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY))
vty_out(vty, " peer-proxy");
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE))
vty_out(vty, " peer-active");
if (mac->hold_timer)
vty_out(vty, " (ht: %s)",
event_timer_to_hhmmss(thread_buf,
sizeof(thread_buf),
mac->hold_timer));
vty_out(vty, "\n");
vty_out(vty, " Local Seq: %u Remote Seq: %u\n", mac->loc_seq,
mac->rem_seq);
vty_out(vty, " Uptime: %s\n", up_str);
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) {
vty_out(vty, " Duplicate, detected at %s",
time_to_string(mac->dad_dup_detect_time,
timebuf));
} else if (mac->dad_count) {
monotime_since(&mac->detect_start_time,
&detect_start_time);
if (detect_start_time.tv_sec <= zvrf->dad_time) {
time_to_string(mac->detect_start_time.tv_sec,
timebuf);
vty_out(vty,
" Duplicate detection started at %s, detection count %u\n",
timebuf, mac->dad_count);
}
}
/* print all the associated neigh */
vty_out(vty, " Neighbors:\n");
if (!listcount(mac->neigh_list))
vty_out(vty, " No Neighbors\n");
else {
for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) {
vty_out(vty, " %s %s\n",
ipaddr2str(&n->ip, buf2, sizeof(buf2)),
(IS_ZEBRA_NEIGH_ACTIVE(n)
? "Active"
: "Inactive"));
}
}
vty_out(vty, "\n");
}
}
static char *zebra_evpn_print_mac_flags(struct zebra_mac *mac, char *flags_buf,
size_t flags_buf_sz)
{
snprintf(flags_buf, flags_buf_sz, "%s%s%s%s",
mac->sync_neigh_cnt ? "N" : "",
(mac->flags & ZEBRA_MAC_ES_PEER_ACTIVE) ? "P" : "",
(mac->flags & ZEBRA_MAC_ES_PEER_PROXY) ? "X" : "",
(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE) ? "I" : "");
return flags_buf;
}
/*
* Print MAC hash entry - called for display of all MACs.
*/
void zebra_evpn_print_mac_hash(struct hash_bucket *bucket, void *ctxt)
{
struct vty *vty;
json_object *json_mac_hdr = NULL, *json_mac = NULL;
struct zebra_mac *mac;
char buf1[ETHER_ADDR_STRLEN];
char addr_buf[PREFIX_STRLEN];
struct mac_walk_ctx *wctx = ctxt;
char flags_buf[6];
vty = wctx->vty;
json_mac_hdr = wctx->json;
mac = (struct zebra_mac *)bucket->data;
prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1));
if (json_mac_hdr)
json_mac = json_object_new_object();
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
struct interface *ifp;
vlanid_t vid;
if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP)
return;
zebra_evpn_mac_get_access_info(mac, &ifp, &vid);
if (json_mac_hdr == NULL) {
vty_out(vty, "%-17s %-6s %-5s %-30s", buf1, "local",
zebra_evpn_print_mac_flags(mac, flags_buf,
sizeof(flags_buf)),
ifp ? ifp->name : "-");
} else {
json_object_string_add(json_mac, "type", "local");
if (ifp)
json_object_string_add(json_mac, "intf",
ifp->name);
}
if (vid) {
if (json_mac_hdr == NULL)
vty_out(vty, " %-5u", vid);
else
json_object_int_add(json_mac, "vlan", vid);
} else /* No vid? fill out the space */
if (json_mac_hdr == NULL)
vty_out(vty, " %-5s", "");
if (json_mac_hdr == NULL) {
vty_out(vty, " %u/%u", mac->loc_seq, mac->rem_seq);
vty_out(vty, "\n");
} else {
json_object_int_add(json_mac, "localSequence",
mac->loc_seq);
json_object_int_add(json_mac, "remoteSequence",
mac->rem_seq);
json_object_int_add(json_mac, "detectionCount",
mac->dad_count);
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
json_object_boolean_true_add(json_mac,
"isDuplicate");
else
json_object_boolean_false_add(json_mac,
"isDuplicate");
json_object_object_add(json_mac_hdr, buf1, json_mac);
}
wctx->count++;
} else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP)
&& !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip,
&wctx->r_vtep_ip))
return;
if (json_mac_hdr == NULL) {
if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP)
&& (wctx->count == 0)) {
vty_out(vty, "\nVNI %u\n\n", wctx->zevpn->vni);
vty_out(vty, "%-17s %-6s %-5s%-30s %-5s %s\n",
"MAC", "Type", "Flags",
"Intf/Remote ES/VTEP", "VLAN",
"Seq #'s");
}
if (mac->es == NULL)
inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip,
addr_buf, sizeof(addr_buf));
vty_out(vty, "%-17s %-6s %-5s %-30s %-5s %u/%u\n", buf1,
"remote",
zebra_evpn_print_mac_flags(mac, flags_buf,
sizeof(flags_buf)),
mac->es ? mac->es->esi_str : addr_buf,
"", mac->loc_seq, mac->rem_seq);
} else {
json_object_string_add(json_mac, "type", "remote");
if (mac->es)
json_object_string_add(json_mac, "remoteEs",
mac->es->esi_str);
else
json_object_string_addf(
json_mac, "remoteVtep", "%pI4",
&mac->fwd_info.r_vtep_ip);
json_object_object_add(json_mac_hdr, buf1, json_mac);
json_object_int_add(json_mac, "localSequence",
mac->loc_seq);
json_object_int_add(json_mac, "remoteSequence",
mac->rem_seq);
json_object_int_add(json_mac, "detectionCount",
mac->dad_count);
if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
json_object_boolean_true_add(json_mac,
"isDuplicate");
else
json_object_boolean_false_add(json_mac,
"isDuplicate");
}
wctx->count++;
}
}
/*
* Print MAC hash entry in detail - called for display of all MACs.
*/
void zebra_evpn_print_mac_hash_detail(struct hash_bucket *bucket, void *ctxt)
{
struct vty *vty;
json_object *json_mac_hdr = NULL;
struct zebra_mac *mac;
struct mac_walk_ctx *wctx = ctxt;
char buf1[ETHER_ADDR_STRLEN];
vty = wctx->vty;
json_mac_hdr = wctx->json;
mac = (struct zebra_mac *)bucket->data;
if (!mac)
return;
wctx->count++;
prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1));
zebra_evpn_print_mac(mac, vty, json_mac_hdr);
}
/*
* Inform BGP about local MACIP.
*/
int zebra_evpn_macip_send_msg_to_client(vni_t vni,
const struct ethaddr *macaddr,
const struct ipaddr *ip, uint8_t flags,
uint32_t seq, int state,
struct zebra_evpn_es *es, uint16_t cmd)
{
int ipa_len;
struct zserv *client = NULL;
struct stream *s = NULL;
esi_t *esi = es ? &es->esi : zero_esi;