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sys/netinet/netdump/netdump_client.c
| Show First 20 Lines • Show All 551 Lines • ▼ Show 20 Lines | netdump_handle_ip(struct mbuf **mb) | ||||
| } | } | ||||
| /* Ignore packets with IP options. */ | /* Ignore packets with IP options. */ | ||||
| if (hlen > sizeof(struct ip)) { | if (hlen > sizeof(struct ip)) { | ||||
| NETDDEBUG("drop packet with IP options\n"); | NETDDEBUG("drop packet with IP options\n"); | ||||
| return; | return; | ||||
| } | } | ||||
| #ifdef INVARIANTS | #ifdef INVARIANTS | ||||
| if (((ntohl(ip->ip_dst.s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET || | if ((IN_LOOPBACK(ntohl(ip->ip_dst.s_addr)) || | ||||
| (ntohl(ip->ip_src.s_addr) >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET) && | IN_LOOPBACK(ntohl(ip->ip_src.s_addr))) && | ||||
| (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0) { | (m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) == 0) { | ||||
| NETDDEBUG("Bad IP header (RFC1122)\n"); | NETDDEBUG("Bad IP header (RFC1122)\n"); | ||||
| return; | return; | ||||
| } | } | ||||
| #endif | #endif | ||||
| /* Checksum. */ | /* Checksum. */ | ||||
| if ((m->m_pkthdr.csum_flags & CSUM_IP_CHECKED) != 0) { | if ((m->m_pkthdr.csum_flags & CSUM_IP_CHECKED) != 0) { | ||||
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