mirror of
https://git.rtems.org/rtems-libbsd/
synced 2025-05-14 07:29:25 +08:00
8440506ee8
- Update the file builder generator to handle generator specific cflags and includes. The tcpdump and libpcap have localised headers and need specific headers paths to see them. There are also module specific flags and these need to be passed to the lex and yacc generators. - Add the tcpdump support.
335 lines
8.2 KiB
C
335 lines
8.2 KiB
C
#include <machine/rtems-bsd-user-space.h>
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/*
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* Copyright (C) 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifndef lint
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static const char rcsid[] _U_ =
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"@(#) $Header: /tcpdump/master/tcpdump/print-ip6opts.c,v 1.18 2005-04-20 22:18:50 guy Exp $";
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#endif
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#ifdef INET6
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#include <tcpdump-stdinc.h>
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#include <stdio.h>
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#include "ip6.h"
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#include "interface.h"
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#include "addrtoname.h"
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#include "extract.h"
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/* items outside of rfc2292bis */
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#ifndef IP6OPT_MINLEN
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#define IP6OPT_MINLEN 2
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#endif
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#ifndef IP6OPT_RTALERT_LEN
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#define IP6OPT_RTALERT_LEN 4
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#endif
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#ifndef IP6OPT_JUMBO_LEN
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#define IP6OPT_JUMBO_LEN 6
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#endif
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#define IP6OPT_HOMEADDR_MINLEN 18
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#define IP6OPT_BU_MINLEN 10
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#define IP6OPT_BA_MINLEN 13
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#define IP6OPT_BR_MINLEN 2
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#define IP6SOPT_UI 0x2
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#define IP6SOPT_UI_MINLEN 4
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#define IP6SOPT_ALTCOA 0x3
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#define IP6SOPT_ALTCOA_MINLEN 18
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#define IP6SOPT_AUTH 0x4
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#define IP6SOPT_AUTH_MINLEN 6
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static void ip6_sopt_print(const u_char *, int);
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static void
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ip6_sopt_print(const u_char *bp, int len)
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{
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int i;
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int optlen;
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for (i = 0; i < len; i += optlen) {
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if (bp[i] == IP6OPT_PAD1)
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optlen = 1;
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else {
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if (i + 1 < len)
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optlen = bp[i + 1] + 2;
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else
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goto trunc;
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}
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if (i + optlen > len)
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goto trunc;
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switch (bp[i]) {
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case IP6OPT_PAD1:
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printf(", pad1");
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break;
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case IP6OPT_PADN:
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if (len - i < IP6OPT_MINLEN) {
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printf(", padn: trunc");
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goto trunc;
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}
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printf(", padn");
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break;
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case IP6SOPT_UI:
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if (len - i < IP6SOPT_UI_MINLEN) {
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printf(", ui: trunc");
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goto trunc;
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}
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printf(", ui: 0x%04x ", EXTRACT_16BITS(&bp[i + 2]));
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break;
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case IP6SOPT_ALTCOA:
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if (len - i < IP6SOPT_ALTCOA_MINLEN) {
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printf(", altcoa: trunc");
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goto trunc;
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}
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printf(", alt-CoA: %s", ip6addr_string(&bp[i+2]));
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break;
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case IP6SOPT_AUTH:
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if (len - i < IP6SOPT_AUTH_MINLEN) {
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printf(", auth: trunc");
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goto trunc;
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}
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printf(", auth spi: 0x%08x", EXTRACT_32BITS(&bp[i + 2]));
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break;
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default:
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if (len - i < IP6OPT_MINLEN) {
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printf(", sopt_type %d: trunc)", bp[i]);
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goto trunc;
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}
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printf(", sopt_type 0x%02x: len=%d", bp[i], bp[i + 1]);
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break;
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}
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}
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return;
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trunc:
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printf("[trunc] ");
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}
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void
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ip6_opt_print(const u_char *bp, int len)
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{
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int i;
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int optlen = 0;
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if (len == 0)
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return;
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for (i = 0; i < len; i += optlen) {
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if (bp[i] == IP6OPT_PAD1)
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optlen = 1;
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else {
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if (i + 1 < len)
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optlen = bp[i + 1] + 2;
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else
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goto trunc;
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}
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if (i + optlen > len)
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goto trunc;
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switch (bp[i]) {
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case IP6OPT_PAD1:
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printf("(pad1)");
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break;
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case IP6OPT_PADN:
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if (len - i < IP6OPT_MINLEN) {
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printf("(padn: trunc)");
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goto trunc;
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}
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printf("(padn)");
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break;
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case IP6OPT_ROUTER_ALERT:
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if (len - i < IP6OPT_RTALERT_LEN) {
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printf("(rtalert: trunc)");
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goto trunc;
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}
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if (bp[i + 1] != IP6OPT_RTALERT_LEN - 2) {
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printf("(rtalert: invalid len %d)", bp[i + 1]);
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goto trunc;
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}
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printf("(rtalert: 0x%04x) ", EXTRACT_16BITS(&bp[i + 2]));
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break;
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case IP6OPT_JUMBO:
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if (len - i < IP6OPT_JUMBO_LEN) {
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printf("(jumbo: trunc)");
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goto trunc;
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}
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if (bp[i + 1] != IP6OPT_JUMBO_LEN - 2) {
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printf("(jumbo: invalid len %d)", bp[i + 1]);
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goto trunc;
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}
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printf("(jumbo: %u) ", EXTRACT_32BITS(&bp[i + 2]));
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break;
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case IP6OPT_HOME_ADDRESS:
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if (len - i < IP6OPT_HOMEADDR_MINLEN) {
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printf("(homeaddr: trunc)");
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goto trunc;
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}
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if (bp[i + 1] < IP6OPT_HOMEADDR_MINLEN - 2) {
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printf("(homeaddr: invalid len %d)", bp[i + 1]);
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goto trunc;
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}
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printf("(homeaddr: %s", ip6addr_string(&bp[i + 2]));
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if (bp[i + 1] > IP6OPT_HOMEADDR_MINLEN - 2) {
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ip6_sopt_print(&bp[i + IP6OPT_HOMEADDR_MINLEN],
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(optlen - IP6OPT_HOMEADDR_MINLEN));
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}
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printf(")");
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break;
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case IP6OPT_BINDING_UPDATE:
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if (len - i < IP6OPT_BU_MINLEN) {
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printf("(bu: trunc)");
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goto trunc;
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}
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if (bp[i + 1] < IP6OPT_BU_MINLEN - 2) {
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printf("(bu: invalid len %d)", bp[i + 1]);
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goto trunc;
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}
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printf("(bu: ");
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if (bp[i + 2] & 0x80)
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printf("A");
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if (bp[i + 2] & 0x40)
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printf("H");
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if (bp[i + 2] & 0x20)
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printf("S");
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if (bp[i + 2] & 0x10)
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printf("D");
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if ((bp[i + 2] & 0x0f) || bp[i + 3] || bp[i + 4])
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printf("res");
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printf(", sequence: %u", bp[i + 5]);
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printf(", lifetime: %u", EXTRACT_32BITS(&bp[i + 6]));
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if (bp[i + 1] > IP6OPT_BU_MINLEN - 2) {
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ip6_sopt_print(&bp[i + IP6OPT_BU_MINLEN],
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(optlen - IP6OPT_BU_MINLEN));
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}
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printf(")");
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break;
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case IP6OPT_BINDING_ACK:
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if (len - i < IP6OPT_BA_MINLEN) {
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printf("(ba: trunc)");
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goto trunc;
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}
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if (bp[i + 1] < IP6OPT_BA_MINLEN - 2) {
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printf("(ba: invalid len %d)", bp[i + 1]);
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goto trunc;
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}
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printf("(ba: ");
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printf("status: %u", bp[i + 2]);
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if (bp[i + 3])
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printf("res");
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printf(", sequence: %u", bp[i + 4]);
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printf(", lifetime: %u", EXTRACT_32BITS(&bp[i + 5]));
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printf(", refresh: %u", EXTRACT_32BITS(&bp[i + 9]));
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if (bp[i + 1] > IP6OPT_BA_MINLEN - 2) {
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ip6_sopt_print(&bp[i + IP6OPT_BA_MINLEN],
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(optlen - IP6OPT_BA_MINLEN));
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}
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printf(")");
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break;
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case IP6OPT_BINDING_REQ:
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if (len - i < IP6OPT_BR_MINLEN) {
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printf("(br: trunc)");
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goto trunc;
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}
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printf("(br");
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if (bp[i + 1] > IP6OPT_BR_MINLEN - 2) {
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ip6_sopt_print(&bp[i + IP6OPT_BR_MINLEN],
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(optlen - IP6OPT_BR_MINLEN));
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}
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printf(")");
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break;
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default:
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if (len - i < IP6OPT_MINLEN) {
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printf("(type %d: trunc)", bp[i]);
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goto trunc;
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}
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printf("(opt_type 0x%02x: len=%d)", bp[i], bp[i + 1]);
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break;
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}
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}
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printf(" ");
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#if 0
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end:
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#endif
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return;
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trunc:
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printf("[trunc] ");
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}
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int
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hbhopt_print(register const u_char *bp)
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{
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const struct ip6_hbh *dp = (struct ip6_hbh *)bp;
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int hbhlen = 0;
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TCHECK(dp->ip6h_len);
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hbhlen = (int)((dp->ip6h_len + 1) << 3);
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TCHECK2(*dp, hbhlen);
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printf("HBH ");
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if (vflag)
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ip6_opt_print((const u_char *)dp + sizeof(*dp), hbhlen - sizeof(*dp));
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return(hbhlen);
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trunc:
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fputs("[|HBH]", stdout);
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return(-1);
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}
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int
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dstopt_print(register const u_char *bp)
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{
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const struct ip6_dest *dp = (struct ip6_dest *)bp;
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int dstoptlen = 0;
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TCHECK(dp->ip6d_len);
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dstoptlen = (int)((dp->ip6d_len + 1) << 3);
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TCHECK2(*dp, dstoptlen);
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printf("DSTOPT ");
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if (vflag) {
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ip6_opt_print((const u_char *)dp + sizeof(*dp),
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dstoptlen - sizeof(*dp));
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}
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return(dstoptlen);
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trunc:
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fputs("[|DSTOPT]", stdout);
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return(-1);
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}
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#endif /* INET6 */
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