diff options
Diffstat (limited to 'zebra/rt_netlink.c')
| -rw-r--r-- | zebra/rt_netlink.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c index 55e0775a8c..82ef78d299 100644 --- a/zebra/rt_netlink.c +++ b/zebra/rt_netlink.c @@ -3307,6 +3307,8 @@ static int netlink_ipneigh_change(struct nlmsghdr *h, int len, ns_id_t ns_id) bool local_inactive; uint32_t ext_flags = 0; bool dp_static = false; + int l2_len = 0; + int cmd; ndm = NLMSG_DATA(h); @@ -3348,6 +3350,34 @@ static int netlink_ipneigh_change(struct nlmsghdr *h, int len, ns_id_t ns_id) if (h->nlmsg_type == RTM_NEWNEIGH && !(ndm->ndm_state & NUD_VALID)) netlink_handle_5549(ndm, zif, ifp, &ip, true); + /* we send link layer information to client: + * - nlmsg_type = RTM_DELNEIGH|NEWNEIGH|GETNEIGH + * - struct ipaddr ( for DEL and GET) + * - struct ethaddr mac; (for NEW) + */ + if (h->nlmsg_type == RTM_NEWNEIGH) + cmd = ZEBRA_NHRP_NEIGH_ADDED; + else if (h->nlmsg_type == RTM_GETNEIGH) + cmd = ZEBRA_NHRP_NEIGH_GET; + else if (h->nlmsg_type == RTM_DELNEIGH) + cmd = ZEBRA_NHRP_NEIGH_REMOVED; + else { + zlog_debug("%s(): unknown nlmsg type %u", __func__, + h->nlmsg_type); + return 0; + } + if (tb[NDA_LLADDR]) { + /* copy LLADDR information */ + l2_len = RTA_PAYLOAD(tb[NDA_LLADDR]); + memcpy(&mac, RTA_DATA(tb[NDA_LLADDR]), l2_len); + } + if (l2_len == IPV4_MAX_BYTELEN || l2_len == 0) + zsend_nhrp_neighbor_notify(cmd, ifp, &ip, ndm->ndm_state, + &mac, l2_len); + + if (h->nlmsg_type == RTM_GETNEIGH) + return 0; + /* The neighbor is present on an SVI. From this, we locate the * underlying * bridge because we're only interested in neighbors on a VxLAN bridge. @@ -3615,7 +3645,8 @@ int netlink_neigh_change(struct nlmsghdr *h, ns_id_t ns_id) int len; struct ndmsg *ndm; - if (!(h->nlmsg_type == RTM_NEWNEIGH || h->nlmsg_type == RTM_DELNEIGH)) + if (!(h->nlmsg_type == RTM_NEWNEIGH || h->nlmsg_type == RTM_DELNEIGH + || h->nlmsg_type == RTM_GETNEIGH)) return 0; /* Length validity. */ |