--- tcpdump.c.orig 2013-07-01 18:43:14 UTC +++ tcpdump.c @@ -68,9 +68,6 @@ static char const GCC_UNUSED rcsid[] = -/* external ref, in case missing in older version */ -extern int pcap_offline_read(void *, int, pcap_handler, u_char *); - /* global pointer, the pcap info header */ static pcap_t *pcap; @@ -114,10 +111,13 @@ static int callback( /* for some reason, the windows version of tcpdump is using */ /* this. It looks just like ethernet to me */ case PCAP_DLT_EN10MB: - offset = find_ip_eth(buf); /* Here we check if we are dealing with Straight Ethernet encapsulation or PPPoE */ + offset = find_ip_eth(buf); /* Here we check if we are dealing with Straight Ethernet encapsulation, PPPoE or .1q VLAN encapsulation */ memcpy(ð_header, buf, EH_SIZE); /* save ether header */ switch (offset) { + case EH_SIZE + ETHER_VLAN_ENCAP_LEN: + memcpy(ð_header.ether_type, buf+EH_SIZE+2, 2); + /* FALLTHROUGH */ case EH_SIZE: /* straight Ethernet encapsulation */ memcpy((char *)ip_buf,buf+offset,iplen-offset); callback_plast = ip_buf+iplen-offset-1; @@ -250,7 +250,7 @@ pread_tcpdump( int ret; while (1) { - if ((ret = pcap_offline_read(pcap,1,(pcap_handler)callback,0)) != 1) { + if ((ret = pcap_dispatch(pcap,1,(pcap_handler)callback,0)) != 1) { /* prob EOF */ if (ret == -1) {