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monitor: Do not abort when receiving unknown ARPHRD

This commit is contained in:
Marcel Holtmann 2014-08-06 06:44:15 +02:00
parent e4e45566d9
commit 609cc86717
1 changed files with 12 additions and 4 deletions
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16
monitor/main.c
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@ -148,23 +148,31 @@ static int process_pcap(struct pcap *pcap)
uint16_t proto_type;
if (len < 16) {
fprintf(stderr, "Too short package\n");
return EXIT_FAILURE;
printf("Too short packet\n");
continue;
}
arphrd_type = L_GET_UNALIGNED((const uint16_t *) (buf + 2));
if (L_BE16_TO_CPU(arphrd_type) != ARPHRD_NETLINK) {
fprintf(stderr, "Wrong header type\n");
return EXIT_FAILURE;
printf("Unsupported ARPHRD %u\n",
L_BE16_TO_CPU(arphrd_type));
continue;
}
proto_type = L_GET_UNALIGNED((const uint16_t *) (buf + 14));
switch (L_BE16_TO_CPU(proto_type)) {
case NETLINK_ROUTE:
printf("RTNL packet\n");
break;
case NETLINK_GENERIC:
nlmon_print(nlmon, buf + 16, len - 16);
break;
default:
printf("Other protocol %u\n",
L_BE16_TO_CPU(proto_type));
break;
}
}