/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Subject to the GPL, version 2. */ #include #include #include #include #include "proto.h" #include "protos.h" #include "dissector_eth.h" #include "pkt_buff.h" #include "oui.h" static void ethernet(struct pkt_buff *pkt) { char *type; uint8_t *src_mac, *dst_mac; struct ethhdr *eth = (struct ethhdr *) pkt_pull(pkt, sizeof(*eth)); if (eth == NULL) return; src_mac = eth->h_source; dst_mac = eth->h_dest; tprintf(" [ Eth "); tprintf("MAC (%.2x:%.2x:%.2x:%.2x:%.2x:%.2x => ", src_mac[0], src_mac[1], src_mac[2], src_mac[3], src_mac[4], src_mac[5]); tprintf("%.2x:%.2x:%.2x:%.2x:%.2x:%.2x), ", dst_mac[0], dst_mac[1], dst_mac[2], dst_mac[3], dst_mac[4], dst_mac[5]); tprintf("Proto (0x%.4x", ntohs(eth->h_proto)); type = lookup_ether_type(ntohs(eth->h_proto)); if (type) tprintf(", %s%s%s", colorize_start(bold), type, colorize_end()); tprintf(") ]\n"); tprintf(" [ Vendor "); tprintf("(%s => %s)", lookup_vendor_str((src_mac[0] << 16) | (src_mac[1] << 8) | src_mac[2]), lookup_vendor_str((dst_mac[0] << 16) | (dst_mac[1] << 8) | dst_mac[2])); tprintf(" ]\n"); pkt_set_proto(pkt, ð_lay2, ntohs(eth->h_proto)); } static void ethernet_less(struct pkt_buff *pkt) { uint8_t *src_mac, *dst_mac; struct ethhdr *eth = (struct ethhdr *) pkt_pull(pkt, sizeof(*eth)); if (eth == NULL) return; src_mac = eth->h_source; dst_mac = eth->h_dest; tprintf(" %s => %s ", lookup_vendor_str((src_mac[0] << 16) | (src_mac[1] << 8) | src_mac[2]), lookup_vendor_str((dst_mac[0] << 16) | (dst_mac[1] << 8) | dst_mac[2])); tprintf("%s%s%s", colorize_start(bold), lookup_ether_type(ntohs(eth->h_proto)), colorize_end()); pkt_set_proto(pkt, ð_lay2, ntohs(eth->h_proto)); } struct protocol ethernet_ops = { .key = 0, .print_full = ethernet, .print_less = ethernet_less, }; -private-remove&id=5db4992d8f040b8d8db0b86d42806e0c417f7ccf'>commitdiff
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