X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/c672f002763b3a4fc30ca229e57f50d3b2e6d766..d75ee07998ef8ac0fc1a9a6beea2e15a3ca1f726:/print-ip6.c diff --git a/print-ip6.c b/print-ip6.c index 68d7d6e2..ee3df72d 100644 --- a/print-ip6.c +++ b/print-ip6.c @@ -21,7 +21,7 @@ #ifndef lint static const char rcsid[] = - "@(#) $Header: /tcpdump/master/tcpdump/print-ip6.c,v 1.18 2001-09-17 21:58:03 fenner Exp $"; + "@(#) $Header: /tcpdump/master/tcpdump/print-ip6.c,v 1.31 2003-06-07 11:57:54 guy Exp $"; #endif #ifdef HAVE_CONFIG_H @@ -30,22 +30,18 @@ static const char rcsid[] = #ifdef INET6 -#include -#include -#include -#include - -#include +#include #include #include -#include #include #include "interface.h" #include "addrtoname.h" +#include "extract.h" #include "ip6.h" +#include "ipproto.h" /* * print an IP6 datagram. @@ -60,26 +56,9 @@ ip6_print(register const u_char *bp, register u_int length) int nh; int fragmented = 0; u_int flow; - + ip6 = (const struct ip6_hdr *)bp; -#ifdef LBL_ALIGN - /* - * The IP6 header is not 16-byte aligned, so copy into abuf. - * This will never happen with BPF. It does happen raw packet - * dumps from -r. - */ - if ((u_long)ip6 & 15) { - static u_char *abuf; - - if (abuf == NULL) - abuf = malloc(snaplen); - memcpy(abuf, ip6, min(length, snaplen)); - snapend += abuf - (u_char *)ip6; - packetp = abuf; - ip6 = (struct ip6_hdr *)abuf; - } -#endif TCHECK(*ip6); if (length < sizeof (struct ip6_hdr)) { (void)printf("truncated-ip6 %d", length); @@ -87,7 +66,7 @@ ip6_print(register const u_char *bp, register u_int length) } advance = sizeof(struct ip6_hdr); - len = ntohs(ip6->ip6_plen); + len = EXTRACT_16BITS(&ip6->ip6_plen); if (length < len + advance) (void)printf("truncated-ip6 - %d bytes missing!", len + advance - length); @@ -98,7 +77,8 @@ ip6_print(register const u_char *bp, register u_int length) cp += advance; if (cp == (const u_char *)(ip6 + 1) - && nh != IPPROTO_TCP && nh != IPPROTO_UDP) { + && nh != IPPROTO_TCP && nh != IPPROTO_UDP + && nh != IPPROTO_SCTP) { (void)printf("%s > %s: ", ip6addr_string(&ip6->ip6_src), ip6addr_string(&ip6->ip6_dst)); } @@ -119,10 +99,23 @@ ip6_print(register const u_char *bp, register u_int length) nh = *cp; fragmented = 1; break; + + case IPPROTO_MOBILITY: + /* + * XXX - we don't use "advance"; is this + * header always a final header? + */ + advance = mobility_print(cp, (const u_char *)ip6); + nh = *cp; + goto end; case IPPROTO_ROUTING: advance = rt6_print(cp, (const u_char *)ip6); nh = *cp; break; + case IPPROTO_SCTP: + sctp_print(cp, (const u_char *)ip6, + len + sizeof(struct ip6_hdr) - (cp - bp)); + goto end; case IPPROTO_TCP: tcp_print(cp, len + sizeof(struct ip6_hdr) - (cp - bp), (const u_char *)ip6, fragmented); @@ -132,10 +125,10 @@ ip6_print(register const u_char *bp, register u_int length) (const u_char *)ip6, fragmented); goto end; case IPPROTO_ICMPV6: - icmp6_print(cp, (const u_char *)ip6); + icmp6_print(cp, (const u_char *)ip6, fragmented); goto end; case IPPROTO_AH: - advance = ah_print(cp, (const u_char *)ip6); + advance = ah_print(cp); nh = *cp; break; case IPPROTO_ESP: @@ -148,40 +141,31 @@ ip6_print(register const u_char *bp, register u_int length) len -= padlen; break; } -#ifndef IPPROTO_IPCOMP -#define IPPROTO_IPCOMP 108 -#endif case IPPROTO_IPCOMP: { int enh; - advance = ipcomp_print(cp, (const u_char *)ip6, &enh); + advance = ipcomp_print(cp, &enh); if (enh < 0) goto end; nh = enh & 0xff; break; } -#ifndef IPPROTO_PIM -#define IPPROTO_PIM 103 -#endif case IPPROTO_PIM: pim_print(cp, len); goto end; -#ifndef IPPROTO_OSPF -#define IPPROTO_OSPF 89 -#endif case IPPROTO_OSPF: ospf6_print(cp, len); goto end; + case IPPROTO_IPV6: ip6_print(cp, len); goto end; -#ifndef IPPROTO_IPV4 -#define IPPROTO_IPV4 4 -#endif + case IPPROTO_IPV4: ip_print(cp, len); goto end; + case IPPROTO_NONE: (void)printf("no next header"); goto end; @@ -193,8 +177,8 @@ ip6_print(register const u_char *bp, register u_int length) } end: - - flow = ntohl(ip6->ip6_flow); + + flow = EXTRACT_32BITS(&ip6->ip6_flow); #if 0 /* rfc1883 */ if (flow & 0x0f000000)