diff options
Diffstat (limited to 'sys/netinet/ip_input.c')
| -rw-r--r-- | sys/netinet/ip_input.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index dcf2825..a75ee72 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -592,7 +592,6 @@ passin: return; } if (IN_MULTICAST(ntohl(ip->ip_dst.s_addr))) { - struct in_multi *inm; if (V_ip_mrouter) { /* * If we are acting as a multicast router, all @@ -619,17 +618,10 @@ passin: V_ipstat.ips_forward++; } /* - * See if we belong to the destination multicast group on the - * arrival interface. + * Assume the packet is for us, to avoid prematurely taking + * a lock on the in_multi hash. Protocols must perform + * their own filtering and update statistics accordingly. */ - IN_MULTI_LOCK(); - IN_LOOKUP_MULTI(ip->ip_dst, m->m_pkthdr.rcvif, inm); - IN_MULTI_UNLOCK(); - if (inm == NULL) { - V_ipstat.ips_notmember++; - m_freem(m); - return; - } goto ours; } if (ip->ip_dst.s_addr == (u_long)INADDR_BROADCAST) |
