diff options
| author | Gordon Tetlow <gordon@FreeBSD.org> | 2017-09-18 04:10:54 +0000 |
|---|---|---|
| committer | Gordon Tetlow <gordon@FreeBSD.org> | 2017-09-18 04:10:54 +0000 |
| commit | 4533b6d8a9b95fc043b72b3656b98e79ac839041 (patch) | |
| tree | 4ac156eafa4323886af859c09363dff43cc44106 /print-mobility.c | |
| parent | d79b843cb78484ea27f877f1541055e1a6a5a4d3 (diff) | |
Diffstat (limited to 'print-mobility.c')
| -rw-r--r-- | print-mobility.c | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/print-mobility.c b/print-mobility.c index 71cc85b5bb05..feb4c98fea36 100644 --- a/print-mobility.c +++ b/print-mobility.c @@ -28,6 +28,7 @@ */ /* \summary: IPv6 mobility printer */ +/* RFC 3775 */ #ifdef HAVE_CONFIG_H #include "config.h" @@ -35,11 +36,12 @@ #include <netdissect-stdinc.h> -#include "ip6.h" #include "netdissect.h" #include "addrtoname.h" #include "extract.h" +#include "ip6.h" + static const char tstr[] = "[|MOBILITY]"; /* Mobility header */ @@ -148,6 +150,7 @@ mobility_opt_print(netdissect_options *ndo, goto trunc; } /* units of 4 secs */ + ND_TCHECK_16BITS(&bp[i+2]); ND_PRINT((ndo, "(refresh: %u)", EXTRACT_16BITS(&bp[i+2]) << 2)); break; @@ -156,6 +159,7 @@ mobility_opt_print(netdissect_options *ndo, ND_PRINT((ndo, "(altcoa: trunc)")); goto trunc; } + ND_TCHECK_128BITS(&bp[i+2]); ND_PRINT((ndo, "(alt-CoA: %s)", ip6addr_string(ndo, &bp[i+2]))); break; case IP6MOPT_NONCEID: @@ -163,6 +167,8 @@ mobility_opt_print(netdissect_options *ndo, ND_PRINT((ndo, "(ni: trunc)")); goto trunc; } + ND_TCHECK_16BITS(&bp[i+2]); + ND_TCHECK_16BITS(&bp[i+4]); ND_PRINT((ndo, "(ni: ho=0x%04x co=0x%04x)", EXTRACT_16BITS(&bp[i+2]), EXTRACT_16BITS(&bp[i+4]))); @@ -241,7 +247,7 @@ mobility_print(netdissect_options *ndo, case IP6M_CAREOF_TEST_INIT: hlen = IP6M_MINLEN; if (ndo->ndo_vflag) { - ND_TCHECK2(*mh, hlen + 8); + ND_TCHECK_32BITS(&bp[hlen + 4]); ND_PRINT((ndo, " %s Init Cookie=%08x:%08x", type == IP6M_HOME_TEST_INIT ? "Home" : "Care-of", EXTRACT_32BITS(&bp[hlen]), @@ -255,7 +261,7 @@ mobility_print(netdissect_options *ndo, ND_PRINT((ndo, " nonce id=0x%x", EXTRACT_16BITS(&mh->ip6m_data16[0]))); hlen = IP6M_MINLEN; if (ndo->ndo_vflag) { - ND_TCHECK2(*mh, hlen + 8); + ND_TCHECK_32BITS(&bp[hlen + 4]); ND_PRINT((ndo, " %s Init Cookie=%08x:%08x", type == IP6M_HOME_TEST ? "Home" : "Care-of", EXTRACT_32BITS(&bp[hlen]), @@ -263,7 +269,7 @@ mobility_print(netdissect_options *ndo, } hlen += 8; if (ndo->ndo_vflag) { - ND_TCHECK2(*mh, hlen + 8); + ND_TCHECK_32BITS(&bp[hlen + 4]); ND_PRINT((ndo, " %s Keygen Token=%08x:%08x", type == IP6M_HOME_TEST ? "Home" : "Care-of", EXTRACT_32BITS(&bp[hlen]), @@ -275,22 +281,23 @@ mobility_print(netdissect_options *ndo, ND_TCHECK(mh->ip6m_data16[0]); ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&mh->ip6m_data16[0]))); hlen = IP6M_MINLEN; - ND_TCHECK2(*mh, hlen + 1); - if (bp[hlen] & 0xf0) + ND_TCHECK_16BITS(&bp[hlen]); + if (bp[hlen] & 0xf0) { ND_PRINT((ndo, " ")); - if (bp[hlen] & 0x80) - ND_PRINT((ndo, "A")); - if (bp[hlen] & 0x40) - ND_PRINT((ndo, "H")); - if (bp[hlen] & 0x20) - ND_PRINT((ndo, "L")); - if (bp[hlen] & 0x10) - ND_PRINT((ndo, "K")); + if (bp[hlen] & 0x80) + ND_PRINT((ndo, "A")); + if (bp[hlen] & 0x40) + ND_PRINT((ndo, "H")); + if (bp[hlen] & 0x20) + ND_PRINT((ndo, "L")); + if (bp[hlen] & 0x10) + ND_PRINT((ndo, "K")); + } /* Reserved (4bits) */ hlen += 1; /* Reserved (8bits) */ hlen += 1; - ND_TCHECK2(*mh, hlen + 2); + ND_TCHECK_16BITS(&bp[hlen]); /* units of 4 secs */ ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2)); hlen += 2; @@ -298,14 +305,15 @@ mobility_print(netdissect_options *ndo, case IP6M_BINDING_ACK: ND_TCHECK(mh->ip6m_data8[0]); ND_PRINT((ndo, " status=%u", mh->ip6m_data8[0])); + ND_TCHECK(mh->ip6m_data8[1]); if (mh->ip6m_data8[1] & 0x80) ND_PRINT((ndo, " K")); /* Reserved (7bits) */ hlen = IP6M_MINLEN; - ND_TCHECK2(*mh, hlen + 2); + ND_TCHECK_16BITS(&bp[hlen]); ND_PRINT((ndo, " seq#=%u", EXTRACT_16BITS(&bp[hlen]))); hlen += 2; - ND_TCHECK2(*mh, hlen + 2); + ND_TCHECK_16BITS(&bp[hlen]); /* units of 4 secs */ ND_PRINT((ndo, " lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2)); hlen += 2; @@ -315,7 +323,7 @@ mobility_print(netdissect_options *ndo, ND_PRINT((ndo, " status=%u", mh->ip6m_data8[0])); /* Reserved */ hlen = IP6M_MINLEN; - ND_TCHECK2(*mh, hlen + 16); + ND_TCHECK2(bp[hlen], 16); ND_PRINT((ndo, " homeaddr %s", ip6addr_string(ndo, &bp[hlen]))); hlen += 16; break; @@ -332,5 +340,5 @@ mobility_print(netdissect_options *ndo, trunc: ND_PRINT((ndo, "%s", tstr)); - return(mhlen); + return(-1); } |