X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/fcc82f451d3e51fdf636abbf927edb287bada0e0..47fc89d711eec0a073d9b3b293a1af901b5bd791:/print-mobility.c diff --git a/print-mobility.c b/print-mobility.c index de9f1531..d4dfcc0c 100644 --- a/print-mobility.c +++ b/print-mobility.c @@ -1,7 +1,7 @@ /* * Copyright (C) 2002 WIDE Project. * All rights reserved. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -13,7 +13,7 @@ * 3. Neither the name of the project nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. - * + * * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -31,11 +31,6 @@ #include "config.h" #endif -#ifndef lint -static const char rcsid[] = - "@(#) $Header: /tcpdump/master/tcpdump/print-mobility.c,v 1.8 2002-12-11 07:14:05 guy Exp $"; -#endif - #ifdef INET6 #include @@ -65,6 +60,8 @@ struct ip6_mobility { #define IP6M_MINLEN 8 +/* http://www.iana.org/assignments/mobility-parameters/mobility-parameters.xhtml */ + /* message type */ #define IP6M_BINDING_REQUEST 0 /* Binding Refresh Request */ #define IP6M_HOME_TEST_INIT 1 /* Home Test Init */ @@ -75,25 +72,28 @@ struct ip6_mobility { #define IP6M_BINDING_ACK 6 /* Binding Acknowledgement */ #define IP6M_BINDING_ERROR 7 /* Binding Error */ +/* XXX: unused */ +#define IP6MOPT_BU_MINLEN 10 +#define IP6MOPT_BA_MINLEN 13 +#define IP6MOPT_BR_MINLEN 2 + /* Mobility Header Options */ #define IP6MOPT_MINLEN 2 #define IP6MOPT_PAD1 0x0 /* Pad1 */ #define IP6MOPT_PADN 0x1 /* PadN */ -/* 0x2 /* reserved */ +#define IP6MOPT_REFRESH 0x2 /* Binding Refresh Advice */ +#define IP6MOPT_REFRESH_MINLEN 4 #define IP6MOPT_ALTCOA 0x3 /* Alternate Care-of Address */ #define IP6MOPT_ALTCOA_MINLEN 18 #define IP6MOPT_NONCEID 0x4 /* Nonce Indices */ #define IP6MOPT_NONCEID_MINLEN 6 #define IP6MOPT_AUTH 0x5 /* Binding Authorization Data */ #define IP6MOPT_AUTH_MINLEN 12 -#define IP6MOPT_REFRESH 0x6 /* Binding Refresh Advice */ -#define IP6MOPT_REFRESH_MINLEN 4 static void -mobility_opt_print(const u_char *bp, int len) +mobility_opt_print(const u_char *bp, const unsigned len) { - int i; - int optlen; + unsigned i, optlen; for (i = 0; i < len; i += optlen) { if (bp[i] == IP6MOPT_PAD1) @@ -118,6 +118,15 @@ mobility_opt_print(const u_char *bp, int len) } printf("(padn)"); break; + case IP6MOPT_REFRESH: + if (len - i < IP6MOPT_REFRESH_MINLEN) { + printf("(refresh: trunc)"); + goto trunc; + } + /* units of 4 secs */ + printf("(refresh: %u)", + EXTRACT_16BITS(&bp[i+2]) << 2); + break; case IP6MOPT_ALTCOA: if (len - i < IP6MOPT_ALTCOA_MINLEN) { printf("(altcoa: trunc)"); @@ -130,7 +139,7 @@ mobility_opt_print(const u_char *bp, int len) printf("(ni: trunc)"); goto trunc; } - printf("(ni: ho=0x%04x ci=0x%04x)", + printf("(ni: ho=0x%04x co=0x%04x)", EXTRACT_16BITS(&bp[i+2]), EXTRACT_16BITS(&bp[i+4])); break; @@ -141,21 +150,12 @@ mobility_opt_print(const u_char *bp, int len) } printf("(auth)"); break; - case IP6MOPT_REFRESH: - if (len - i < IP6MOPT_REFRESH_MINLEN) { - printf("(refresh: trunc)"); - goto trunc; - } - /* units of 4 secs */ - printf("(refresh: %d)", - EXTRACT_16BITS(&bp[i+2]) << 2); - break; default: if (len - i < IP6MOPT_MINLEN) { - printf("(sopt_type %d: trunc)", bp[i]); + printf("(sopt_type %u: trunc)", bp[i]); goto trunc; } - printf("(type-0x%02x: len=%d)", bp[i], bp[i + 1]); + printf("(type-0x%02x: len=%u)", bp[i], bp[i + 1]); break; } } @@ -169,15 +169,14 @@ trunc: * Mobility Header */ int -mobility_print(const u_char *bp, const u_char *bp2) +mobility_print(const u_char *bp, const u_char *bp2 _U_) { const struct ip6_mobility *mh; - const struct ip6_hdr *ip6; const u_char *ep; - int mhlen, hlen, type; + unsigned mhlen, hlen; + u_int8_t type; mh = (struct ip6_mobility *)bp; - ip6 = (struct ip6_hdr *)bp2; /* 'ep' points to the end of available data. */ ep = snapend; @@ -198,7 +197,7 @@ mobility_print(const u_char *bp, const u_char *bp2) mhlen = ep - bp; goto trunc; } - mhlen = (int)((mh->ip6m_len + 1) << 3); + mhlen = (mh->ip6m_len + 1) << 3; /* XXX ip6m_cksum */ @@ -216,8 +215,8 @@ mobility_print(const u_char *bp, const u_char *bp2) hlen = IP6M_MINLEN; if (vflag) { TCHECK2(*mh, hlen + 8); - printf(" %soT cookie=%08x:%08x", - type == IP6M_HOME_TEST_INIT ? "H" : "C", + printf(" %s Init Cookie=%08x:%08x", + type == IP6M_HOME_TEST_INIT ? "Home" : "Care-of", EXTRACT_32BITS(&bp[hlen]), EXTRACT_32BITS(&bp[hlen + 4])); } @@ -232,15 +231,15 @@ mobility_print(const u_char *bp, const u_char *bp2) hlen = IP6M_MINLEN; if (vflag) { TCHECK2(*mh, hlen + 8); - printf(" %soTI cookie=%08x:%08x", - type == IP6M_HOME_TEST ? "H" : "C", + printf(" %s Init Cookie=%08x:%08x", + type == IP6M_HOME_TEST ? "Home" : "Care-of", EXTRACT_32BITS(&bp[hlen]), EXTRACT_32BITS(&bp[hlen + 4])); } hlen += 8; if (vflag) { TCHECK2(*mh, hlen + 8); - printf(" %s KN=%08x:%08x", + printf(" %s Keygen Token=%08x:%08x", type == IP6M_HOME_TEST ? "Home" : "Care-of", EXTRACT_32BITS(&bp[hlen]), EXTRACT_32BITS(&bp[hlen + 4])); @@ -250,48 +249,48 @@ mobility_print(const u_char *bp, const u_char *bp2) case IP6M_BINDING_UPDATE: printf("mobility: BU"); TCHECK(mh->ip6m_data16[0]); - printf(" seq#=%d", EXTRACT_16BITS(&mh->ip6m_data16[0])); + printf(" seq#=%u", EXTRACT_16BITS(&mh->ip6m_data16[0])); hlen = IP6M_MINLEN; TCHECK2(*mh, hlen + 1); - if (bp[hlen] & 0xf8) + if (bp[hlen] & 0xf0) printf(" "); if (bp[hlen] & 0x80) printf("A"); if (bp[hlen] & 0x40) printf("H"); if (bp[hlen] & 0x20) - printf("S"); - if (bp[hlen] & 0x10) - printf("D"); - if (bp[hlen] & 0x08) printf("L"); - /* Reserved (3bits) */ + if (bp[hlen] & 0x10) + printf("K"); + /* Reserved (4bits) */ hlen += 1; /* Reserved (8bits) */ hlen += 1; TCHECK2(*mh, hlen + 2); /* units of 4 secs */ - printf(" lifetime=%d", EXTRACT_16BITS(&bp[hlen]) << 2); + printf(" lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2); hlen += 2; break; case IP6M_BINDING_ACK: printf("mobility: BA"); TCHECK(mh->ip6m_data8[0]); - printf(" status=%d", mh->ip6m_data8[0]); - /* Reserved */ + printf(" status=%u", mh->ip6m_data8[0]); + if (mh->ip6m_data8[1] & 0x80) + printf(" K"); + /* Reserved (7bits) */ hlen = IP6M_MINLEN; TCHECK2(*mh, hlen + 2); - printf(" seq#=%d", EXTRACT_16BITS(&bp[hlen])); + printf(" seq#=%u", EXTRACT_16BITS(&bp[hlen])); hlen += 2; TCHECK2(*mh, hlen + 2); /* units of 4 secs */ - printf(" lifetime=%d", EXTRACT_16BITS(&bp[hlen]) << 2); + printf(" lifetime=%u", EXTRACT_16BITS(&bp[hlen]) << 2); hlen += 2; break; case IP6M_BINDING_ERROR: printf("mobility: BE"); TCHECK(mh->ip6m_data8[0]); - printf(" status=%d", mh->ip6m_data8[0]); + printf(" status=%u", mh->ip6m_data8[0]); /* Reserved */ hlen = IP6M_MINLEN; TCHECK2(*mh, hlen + 16); @@ -299,7 +298,7 @@ mobility_print(const u_char *bp, const u_char *bp2) hlen += 16; break; default: - printf("mobility: type-#%d len=%d", type, mh->ip6m_len); + printf("mobility: type-#%u len=%u", type, mh->ip6m_len); return(mhlen); break; }