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| author | mlaier <mlaier@FreeBSD.org> | 2007-10-16 02:31:48 +0000 |
|---|---|---|
| committer | mlaier <mlaier@FreeBSD.org> | 2007-10-16 02:31:48 +0000 |
| commit | 7407d685ab0d1977958bae143bdcc3b53dacea31 (patch) | |
| tree | 8c8221dcf086879544da49d1342bacd303933fa6 /contrib/tcpdump/print-ppp.c | |
| parent | f0e5d335e38c264eb2fca7e15e417b70c8908f54 (diff) | |
| download | FreeBSD-src-7407d685ab0d1977958bae143bdcc3b53dacea31.zip FreeBSD-src-7407d685ab0d1977958bae143bdcc3b53dacea31.tar.gz | |
Resolve merge conflicts
Approved by: re (kensmith)
Obtained from: tcpdump.org
Diffstat (limited to 'contrib/tcpdump/print-ppp.c')
| -rw-r--r-- | contrib/tcpdump/print-ppp.c | 81 |
1 files changed, 74 insertions, 7 deletions
diff --git a/contrib/tcpdump/print-ppp.c b/contrib/tcpdump/print-ppp.c index 3c48c78..e25930b 100644 --- a/contrib/tcpdump/print-ppp.c +++ b/contrib/tcpdump/print-ppp.c @@ -33,7 +33,7 @@ #ifndef lint static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/tcpdump/print-ppp.c,v 1.108.2.4 2005/06/18 23:56:40 guy Exp $ (LBL)"; + "@(#) $Header: /tcpdump/master/tcpdump/print-ppp.c,v 1.108.2.6 2005/12/05 11:40:36 hannes Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H @@ -298,6 +298,20 @@ struct tok ipcpopt_values[] = { { 0, NULL } }; +#define IPCPOPT_IPCOMP_HDRCOMP 0x61 /* rfc3544 */ +#define IPCPOPT_IPCOMP_MINLEN 14 + +struct tok ipcpopt_compproto_values[] = { + { PPP_VJC, "VJ-Comp" }, + { IPCPOPT_IPCOMP_HDRCOMP, "IP Header Compression" }, + { 0, NULL } +}; + +struct tok ipcpopt_compproto_subopt_values[] = { + { 1, "RTP-Compression" }, + { 2, "Enhanced RTP-Compression" }, + { 0, NULL } +}; /* IP6CP Config Options */ #define IP6CP_IFID 1 @@ -533,8 +547,9 @@ handle_ctrl_proto(u_int proto, const u_char *pptr, int length) printf("\n\t Magic-Num 0x%08x", EXTRACT_32BITS(tptr)); /* XXX: need to decode Data? - hexdump for now */ if (len > 8) { - printf("\n\t Data"); - print_unknown_data(tptr+4,"\n\t ",len-4); + printf("\n\t -----trailing data-----"); + TCHECK2(tptr[4], len-8); + print_unknown_data(tptr+4,"\n\t ",len-8); } break; case CPCODES_ID: @@ -966,6 +981,7 @@ static int print_ipcp_config_options(const u_char *p, int length) { int len, opt; + u_int compproto, ipcomp_subopttotallen, ipcomp_subopt, ipcomp_suboptlen; if (length < 2) return 0; @@ -1000,11 +1016,62 @@ print_ipcp_config_options(const u_char *p, int length) if (len < 4) goto invlen; TCHECK2(*(p + 2), 2); - if (EXTRACT_16BITS(p + 2) == PPP_VJC) { - printf("VJ-Comp"); + compproto = EXTRACT_16BITS(p+2); + + printf("%s (0x%02x):", + tok2str(ipcpopt_compproto_values,"Unknown",compproto), + compproto); + + switch (compproto) { + case PPP_VJC: /* XXX: VJ-Comp parameters should be decoded */ - } else - printf("unknown-comp-proto %04x", EXTRACT_16BITS(p + 2)); + break; + case IPCPOPT_IPCOMP_HDRCOMP: + if (len < IPCPOPT_IPCOMP_MINLEN) + goto invlen; + + TCHECK2(*(p + 2), IPCPOPT_IPCOMP_MINLEN); + printf("\n\t TCP Space %u, non-TCP Space %u" \ + ", maxPeriod %u, maxTime %u, maxHdr %u", + EXTRACT_16BITS(p+4), + EXTRACT_16BITS(p+6), + EXTRACT_16BITS(p+8), + EXTRACT_16BITS(p+10), + EXTRACT_16BITS(p+12)); + + /* suboptions present ? */ + if (len > IPCPOPT_IPCOMP_MINLEN) { + ipcomp_subopttotallen = len - IPCPOPT_IPCOMP_MINLEN; + p += IPCPOPT_IPCOMP_MINLEN; + + printf("\n\t Suboptions, length %u", ipcomp_subopttotallen); + + while (ipcomp_subopttotallen >= 2) { + TCHECK2(*p, 2); + ipcomp_subopt = *p; + ipcomp_suboptlen = *(p+1); + + /* sanity check */ + if (ipcomp_subopt == 0 || + ipcomp_suboptlen == 0 ) + break; + + /* XXX: just display the suboptions for now */ + printf("\n\t\t%s Suboption #%u, length %u", + tok2str(ipcpopt_compproto_subopt_values, + "Unknown", + ipcomp_subopt), + ipcomp_subopt, + ipcomp_suboptlen); + + ipcomp_subopttotallen -= ipcomp_suboptlen; + p += ipcomp_suboptlen; + } + } + break; + default: + break; + } break; case IPCPOPT_ADDR: /* those options share the same format - fall through */ |
