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Merge pull request #3299 from opensourcerouting/fix-bfd-ipv6-unnumbered

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bfdd: fix BGP unnumbered peer setup
This commit is contained in:
Donald Sharp 2018-11-12 09:28:24 -05:00 committed by GitHub
commit 24e23cbc44
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1 changed files with 15 additions and 0 deletions
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15
bfdd/ptm_adapter.c
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@ -381,6 +381,21 @@ static int _ptm_msg_read(struct stream *msg, int command,
if (bpc->bpc_has_localif) {
STREAM_GET(bpc->bpc_localif, msg, ifnamelen);
bpc->bpc_localif[ifnamelen] = 0;
/*
* IPv6 link-local addresses must use scope id,
* otherwise the session lookup will always fail
* and we'll have multiple sessions showing up.
*
* This problem only happens with single hop
* since it is not possible to have link-local
* address for multi hop sessions.
*/
if (bpc->bpc_ipv4 == false
&& IN6_IS_ADDR_LINKLOCAL(
&bpc->bpc_peer.sa_sin6.sin6_addr))
bpc->bpc_peer.sa_sin6.sin6_scope_id =
ptm_bfd_fetch_ifindex(bpc->bpc_localif);
}
}