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Handle STP (under the assumption that the "Bridging PDU"s that go over 

PPP are Spanning Tree Protocol Bridging PDUs) and IPX over PPP.
This commit is contained in:
guy 2001-01-14 08:09:58 +00:00
parent d17596dbd9
commit d4869582d0
1 changed files with 33 additions and 2 deletions
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35
gencode.c
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@ -21,7 +21,7 @@
*/
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.143 2001-01-14 07:57:47 guy Exp $ (LBL)";
"@(#) $Header: /tcpdump/master/libpcap/gencode.c,v 1.144 2001-01-14 08:09:58 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@ -1074,6 +1074,19 @@ gen_linktype(proto)
case LLC_ISO_LSAP:
proto = PPP_OSI;
break;
case LLC_STP_LSAP:
/*
* I'm assuming the "Bridging PDU"s that go
* over PPP are Spanning Tree Protocol
* Bridging PDUs.
*/
proto = PPP_BRPDU;
break;
case LLC_IPX_LSAP:
proto = PPP_IPX;
break;
}
break;
@ -1114,6 +1127,19 @@ gen_linktype(proto)
case LLC_ISO_LSAP:
proto = PPP_OSI;
break;
case LLC_STP_LSAP:
/*
* I'm assuming the "Bridging PDU"s that go
* over PPP are Spanning Tree Protocol
* Bridging PDUs.
*/
proto = PPP_BRPDU;
break;
case LLC_IPX_LSAP:
proto = PPP_IPX;
break;
}
break;
@ -1195,7 +1221,12 @@ gen_linktype(proto)
/*
* Any type not handled above should always have an Ethernet
* type at an offset of "off_linktype".
* type at an offset of "off_linktype". (PPP is partially
* handled above - the protocol type is mapped from the
* Ethernet and LLC types we use internally to the corresponding
* PPP type - but the PPP type is always specified by a value
* at "off_linktype", so we don't have to do the code generation
* above.)
*/
return gen_cmp(off_linktype, BPF_H, (bpf_int32)proto);
}