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| author | Igor Ryzhov <iryzhov@nfware.com> | 2024-04-12 16:09:43 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-04-12 16:09:43 +0300 |
| commit | b6e6656a2e24e669b5a87db76edb8b09e48fce9e (patch) | |
| tree | 299b32e82f9e4b2b3e82802f1b23331325b1cd61 /bfdd | |
| parent | 692f916b8841a4f75ec2487e379bc5ab2dad1a08 (diff) | |
| parent | 665ec41339659bef7f643c6df7aab034be0523ed (diff) | |
Merge pull request #15697 from zmw12306/bfd_check_Mflag
bfdd: Add check for flag Multipoint (M)
Diffstat (limited to 'bfdd')
| -rw-r--r-- | bfdd/bfd.h | 2 | ||||
| -rw-r--r-- | bfdd/bfd_packet.c | 6 |
2 files changed, 8 insertions, 0 deletions
diff --git a/bfdd/bfd.h b/bfdd/bfd.h index 66bf706808..9963901e13 100644 --- a/bfdd/bfd.h +++ b/bfdd/bfd.h @@ -105,6 +105,8 @@ struct bfd_echo_pkt { #define BFD_CBIT 0x08 #define BFD_ABIT 0x04 #define BFD_DEMANDBIT 0x02 +#define BFD_MBIT 0x01 +#define BFD_GETMBIT(flags) (flags & BFD_MBIT) #define BFD_SETDEMANDBIT(flags, val) \ { \ if ((val)) \ diff --git a/bfdd/bfd_packet.c b/bfdd/bfd_packet.c index fec195c77e..8110f434c2 100644 --- a/bfdd/bfd_packet.c +++ b/bfdd/bfd_packet.c @@ -898,6 +898,12 @@ void bfd_recv_cb(struct event *t) return; } + if (BFD_GETMBIT(cp->flags)) { + cp_debug(is_mhop, &peer, &local, ifindex, vrfid, + "detect non-zero Multipoint (M) flag"); + return; + } + if (cp->discrs.my_discr == 0) { cp_debug(is_mhop, &peer, &local, ifindex, vrfid, "'my discriminator' is zero"); |