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Initial commit of RadioTap encapsulation support)

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- It works for me, but I believe that one of the headers I'm stripping
   is variable length so this is unlikely to be complete.
This commit is contained in:
Seth Hall 2015-02-04 23:33:20 -05:00
parent 4d0a09a037
commit 9a71f8aa86
1 changed files with 23 additions and 0 deletions
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23
src/iosource/PktSrc.cc
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@ -171,6 +171,9 @@ int PktSrc::GetLinkHeaderSize(int link_type)
case DLT_PPP_SERIAL: // PPP_SERIAL case DLT_PPP_SERIAL: // PPP_SERIAL
return 4; return 4;
case DLT_IEEE802_11_RADIO: // 802.11 plus RadioTap
return 59;
case DLT_RAW: case DLT_RAW:
return 0; return 0;
} }
@ -376,6 +379,26 @@ void PktSrc::Process()
} }
break; break;
} }
case DLT_IEEE802_11_RADIO:
{
protocol = (data[57] << 8) + data[58];
if ( (data[54] == 0 && data[55] == 0 && data[56] == 0) &&
(protocol == 0x0800 || protocol == 0x86DD) )
{
// Found an IPv4 or IPv6 packet.
// Skip over the RadioTap header, the IEEE QoS header,
// and logical link control header.
data += GetLinkHeaderSize(props.link_type);
pkt_hdr_size = 0;
}
else
{
Weird("non_ip_packet_in_ieee802_11_radio_encapsulation", &current_packet);
goto done;
}
break;
}
} }
if ( have_mpls ) if ( have_mpls )