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lib: link layer neighbor registration and notification, define API msgs

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This patch implements new zapi api to get neighbor information that zebra knows
and that other daemons may need to know. Actually, nhrp daemons is
interested in getting the neighbor information on gre interfaces, and
the API will be used for that.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
This commit is contained in:
Philippe Guibert 2019-12-12 16:05:14 +01:00
parent e8263bdb77
commit fda64ab443
3 changed files with 26 additions and 1 deletions
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6
lib/log.c
View File

@ -464,7 +464,11 @@ static const struct zebra_desc_table command_types[] = {
DESC_ENTRY(ZEBRA_ROUTE_NOTIFY_REQUEST),
DESC_ENTRY(ZEBRA_CLIENT_CLOSE_NOTIFY),
DESC_ENTRY(ZEBRA_EVPN_REMOTE_NH_ADD),
DESC_ENTRY(ZEBRA_EVPN_REMOTE_NH_DEL)};
DESC_ENTRY(ZEBRA_EVPN_REMOTE_NH_DEL),
DESC_ENTRY(ZEBRA_NHRP_NEIGH_ADDED),
DESC_ENTRY(ZEBRA_NHRP_NEIGH_REMOVED),
DESC_ENTRY(ZEBRA_NHRP_NEIGH_GET)};
#undef DESC_ENTRY
static const struct zebra_desc_table unknown = {0, "unknown", '?'};

15
lib/zclient.c
View File

@ -3916,6 +3916,21 @@ static int zclient_read(struct thread *thread)
(*zclient->zebra_client_close_notify)(command, zclient,
length, vrf_id);
break;
case ZEBRA_NHRP_NEIGH_ADDED:
if (zclient->neighbor_added)
(*zclient->neighbor_added)(command, zclient, length,
vrf_id);
break;
case ZEBRA_NHRP_NEIGH_REMOVED:
if (zclient->neighbor_removed)
(*zclient->neighbor_removed)(command, zclient, length,
vrf_id);
break;
case ZEBRA_NHRP_NEIGH_GET:
if (zclient->neighbor_get)
(*zclient->neighbor_get)(command, zclient, length,
vrf_id);
break;
default:
break;
}

6
lib/zclient.h
View File

@ -223,6 +223,9 @@ typedef enum {
ZEBRA_NEIGH_DISCOVER,
ZEBRA_ROUTE_NOTIFY_REQUEST,
ZEBRA_CLIENT_CLOSE_NOTIFY,
ZEBRA_NHRP_NEIGH_ADDED,
ZEBRA_NHRP_NEIGH_REMOVED,
ZEBRA_NHRP_NEIGH_GET,
} zebra_message_types_t;
enum zebra_error_types {
@ -381,6 +384,9 @@ struct zclient {
int (*opaque_unregister_handler)(ZAPI_CALLBACK_ARGS);
int (*sr_policy_notify_status)(ZAPI_CALLBACK_ARGS);
int (*zebra_client_close_notify)(ZAPI_CALLBACK_ARGS);
void (*neighbor_added)(ZAPI_CALLBACK_ARGS);
void (*neighbor_removed)(ZAPI_CALLBACK_ARGS);
void (*neighbor_get)(ZAPI_CALLBACK_ARGS);
};
/* Zebra API message flag. */