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bgpd: "default-originate" shouldn't withdraw non-default routes

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Prevent "default-originate" from withdrawing non-default routes like
0.0.0.0/1 by checking prefix length.

Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
This commit is contained in:
Xiao Liang 2023-12-15 18:27:39 +08:00
parent a912f8fab7
commit 4d74ba929d
1 changed files with 1 additions and 3 deletions
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4
bgpd/bgp_route.c
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@ -2169,9 +2169,7 @@ bool subgroup_announce_check(struct bgp_dest *dest, struct bgp_path_info *pi,
* configured for default-originate */ * configured for default-originate */
if (CHECK_FLAG(peer->af_flags[afi][safi], if (CHECK_FLAG(peer->af_flags[afi][safi],
PEER_FLAG_DEFAULT_ORIGINATE)) { PEER_FLAG_DEFAULT_ORIGINATE)) {
if (p->family == AF_INET && p->u.prefix4.s_addr == INADDR_ANY) if ((p->family == AF_INET || p->family == AF_INET6) && p->prefixlen == 0)
return false;
else if (p->family == AF_INET6 && p->prefixlen == 0)
return false; return false;
} }