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bfdd: add check for flag M

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Signed-off-by: zmw12306 <zmw12306@gmail.com>
This commit is contained in:
zmw12306 2024-04-07 16:19:38 -04:00
parent 9b96394d05
commit 665ec41339
2 changed files with 8 additions and 0 deletions
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2
bfdd/bfd.h
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@ -89,6 +89,8 @@ struct bfd_echo_pkt {
#define BFD_CBIT 0x08 #define BFD_CBIT 0x08
#define BFD_ABIT 0x04 #define BFD_ABIT 0x04
#define BFD_DEMANDBIT 0x02 #define BFD_DEMANDBIT 0x02
#define BFD_MBIT 0x01
#define BFD_GETMBIT(flags) (flags & BFD_MBIT)
#define BFD_SETDEMANDBIT(flags, val) \ #define BFD_SETDEMANDBIT(flags, val) \
{ \ { \
if ((val)) \ if ((val)) \

6
bfdd/bfd_packet.c
View file

@ -862,6 +862,12 @@ void bfd_recv_cb(struct event *t)
return; 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) { if (cp->discrs.my_discr == 0) {
cp_debug(is_mhop, &peer, &local, ifindex, vrfid, cp_debug(is_mhop, &peer, &local, ifindex, vrfid,
"'my discriminator' is zero"); "'my discriminator' is zero");