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Adjust snaplen to grab the whole packet in case mtu > 1514

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Fixes an issue where pcap_dispatch would return -1 and pcap_geterror
said "corrupted frame on kernel ring mac"

[Fixes #6527]
This commit is contained in:
James Lee 2012-03-14 12:36:36 -06:00
parent f9739c7ac8
commit 528e8d25d5
1 changed files with 3 additions and 1 deletions
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4
c/meterpreter/source/extensions/sniffer/sniffer.c
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@ -523,6 +523,8 @@ DWORD sniffer_thread(THREAD *thread)
select(fd+1, &rfds, NULL, NULL, &tv);
count = pcap_dispatch(j->pcap, 100, packet_handler, (u_char *)(j));
if (-1 == count)
dprintf("pcap error: %s", pcap_geterr(j->pcap));
if(count <= 0) continue;
if(count) dprintf("dispatched %d packets", count);
@ -605,7 +607,7 @@ DWORD request_sniffer_capture_start(Remote *remote, Packet *packet) {
break;
}
j->pcap = pcap_open_live(name, 1514, 1, 1000, errbuf);
j->pcap = pcap_open_live(name, 65535, 1, 1000, errbuf);
if(! j->pcap) {
result = EACCES;
break;