diff options
| author | rrs <rrs@FreeBSD.org> | 2011-01-19 19:07:16 +0000 |
|---|---|---|
| committer | rrs <rrs@FreeBSD.org> | 2011-01-19 19:07:16 +0000 |
| commit | 647f1a160ffbda332197f078042645ea4af181c2 (patch) | |
| tree | e86d249b139eb9c508133c0cb95a38bf8dab18bc /sys/netinet/udp_usrreq.c | |
| parent | 1c40bff239fb1e662e509cecf113c7516facb916 (diff) | |
| download | FreeBSD-src-647f1a160ffbda332197f078042645ea4af181c2.zip FreeBSD-src-647f1a160ffbda332197f078042645ea4af181c2.tar.gz | |
Fix a bug where Multicast packets sent from a
udp endpoint may end up echoing back to the sender
even with OUT joining the multi-cast group.
Reviewed by: gnn, bms, bz?
Obtained from: deischen (with help from)
Diffstat (limited to 'sys/netinet/udp_usrreq.c')
| -rw-r--r-- | sys/netinet/udp_usrreq.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c index 3bfe788..c9b4f3f 100644 --- a/sys/netinet/udp_usrreq.c +++ b/sys/netinet/udp_usrreq.c @@ -479,11 +479,13 @@ udp_input(struct mbuf *m, int off) * and source-specific multicast. [RFC3678] */ imo = inp->inp_moptions; - if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr)) && - imo != NULL) { + if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr))) { struct sockaddr_in group; int blocked; - + if(imo == NULL) { + INP_RUNLOCK(inp); + continue; + } bzero(&group, sizeof(struct sockaddr_in)); group.sin_len = sizeof(struct sockaddr_in); group.sin_family = AF_INET; |
