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lib: add zapi_nexthop2str()

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Add a handy 2str api for zapi nexthop debugging.

Signed-off-by: Mark Stapp <mjs@voltanet.io>
This commit is contained in:
Mark Stapp 2020-04-03 15:00:13 -04:00
parent daaeaa2150
commit ae076fc276
2 changed files with 35 additions and 0 deletions
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33
lib/zclient.c
View file

@ -1542,6 +1542,39 @@ int zapi_backup_nexthop_from_nexthop(struct zapi_nexthop *znh,
return ret;
}
/*
* Format some info about a zapi nexthop, for debug or logging.
*/
const char *zapi_nexthop2str(const struct zapi_nexthop *znh, char *buf,
int bufsize)
{
char tmp[INET6_ADDRSTRLEN];
switch (znh->type) {
case NEXTHOP_TYPE_IFINDEX:
snprintf(buf, bufsize, "if %u", znh->ifindex);
break;
case NEXTHOP_TYPE_IPV4:
case NEXTHOP_TYPE_IPV4_IFINDEX:
inet_ntop(AF_INET, &znh->gate.ipv4, tmp, sizeof(tmp));
snprintf(buf, bufsize, "%s if %u", tmp, znh->ifindex);
break;
case NEXTHOP_TYPE_IPV6:
case NEXTHOP_TYPE_IPV6_IFINDEX:
inet_ntop(AF_INET6, &znh->gate.ipv6, tmp, sizeof(tmp));
snprintf(buf, bufsize, "%s if %u", tmp, znh->ifindex);
break;
case NEXTHOP_TYPE_BLACKHOLE:
snprintf(buf, bufsize, "blackhole");
break;
default:
snprintf(buf, bufsize, "unknown");
break;
}
return buf;
}
/*
* Decode the nexthop-tracking update message
*/

2
lib/zclient.h
View file

@ -804,6 +804,8 @@ int zapi_backup_nexthop_from_nexthop(struct zapi_nexthop *znh,
const struct nexthop *nh);
extern bool zapi_nexthop_update_decode(struct stream *s,
struct zapi_route *nhr);
const char *zapi_nexthop2str(const struct zapi_nexthop *znh, char *buf,
int bufsize);
/* Decode the zebra error message */
extern bool zapi_error_decode(struct stream *s, enum zebra_error_types *error);