825aa5d580
table.c: Copy into fixed size buffer. trace.c: Argument got dup2() cannot be negative. Copy into fixed size buffer. CID: 1006785, 1006786, 271301 Obtained from: NetBSD MFC after: 2 weeks.
1028 lines
23 KiB
C
1028 lines
23 KiB
C
/*
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. 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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* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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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* $FreeBSD$
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*/
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#define RIPCMDS
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#include "defs.h"
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#include "pathnames.h"
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#include <sys/stat.h>
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#include <sys/signal.h>
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#include <fcntl.h>
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#ifdef __NetBSD__
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__RCSID("$NetBSD$");
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#elif defined(__FreeBSD__)
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__RCSID("$FreeBSD$");
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#else
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__RCSID("$Revision: 2.27 $");
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#ident "$Revision: 2.27 $"
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#endif
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#ifdef sgi
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/* use *stat64 for files on large file systems */
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#define stat stat64
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#endif
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int tracelevel, new_tracelevel;
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FILE *ftrace; /* output trace file */
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static const char *sigtrace_pat = "%s";
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static char savetracename[PATH_MAX];
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char inittracename[PATH_MAX];
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static int file_trace; /* 1=tracing to file, not stdout */
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static void trace_dump(void);
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static void tmsg(const char *, ...) PATTRIB(1,2);
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/* convert string to printable characters
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*/
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static char *
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qstring(u_char *s, int len)
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{
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static char buf[8*20+1];
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char *p;
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u_char *s2, c;
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for (p = buf; len != 0 && p < &buf[sizeof(buf)-1]; len--) {
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c = *s++;
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if (c == '\0') {
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for (s2 = s+1; s2 < &s[len]; s2++) {
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if (*s2 != '\0')
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break;
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}
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if (s2 >= &s[len])
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goto exit;
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}
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if (c >= ' ' && c < 0x7f && c != '\\') {
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*p++ = c;
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continue;
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}
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*p++ = '\\';
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switch (c) {
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case '\\':
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*p++ = '\\';
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break;
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case '\n':
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*p++= 'n';
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break;
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case '\r':
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*p++= 'r';
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break;
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case '\t':
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*p++ = 't';
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break;
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case '\b':
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*p++ = 'b';
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break;
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default:
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p += sprintf(p,"%o",c);
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break;
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}
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}
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exit:
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*p = '\0';
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return buf;
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}
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/* convert IP address to a string, but not into a single buffer
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*/
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char *
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naddr_ntoa(naddr a)
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{
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#define NUM_BUFS 4
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static int bufno;
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static struct {
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char str[16]; /* xxx.xxx.xxx.xxx\0 */
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} bufs[NUM_BUFS];
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char *s;
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struct in_addr addr;
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addr.s_addr = a;
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s = strcpy(bufs[bufno].str, inet_ntoa(addr));
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bufno = (bufno+1) % NUM_BUFS;
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return s;
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#undef NUM_BUFS
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}
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const char *
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saddr_ntoa(struct sockaddr *sa)
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{
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return (sa == NULL) ? "?" : naddr_ntoa(S_ADDR(sa));
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}
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static char *
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ts(time_t secs) {
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static char s[20];
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secs += epoch.tv_sec;
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#ifdef sgi
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(void)cftime(s, "%T", &secs);
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#else
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memcpy(s, ctime(&secs)+11, 8);
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s[8] = '\0';
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#endif
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return s;
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}
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/* On each event, display a time stamp.
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* This assumes that 'now' is update once for each event, and
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* that at least now.tv_usec changes.
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*/
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static struct timeval lastlog_time;
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void
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lastlog(void)
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{
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if (lastlog_time.tv_sec != now.tv_sec
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|| lastlog_time.tv_usec != now.tv_usec) {
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(void)fprintf(ftrace, "-- %s --\n", ts(now.tv_sec));
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lastlog_time = now;
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}
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}
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static void
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tmsg(const char *p, ...)
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{
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va_list args;
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if (ftrace != NULL) {
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lastlog();
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va_start(args, p);
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vfprintf(ftrace, p, args);
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va_end(args);
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(void)fputc('\n',ftrace);
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fflush(ftrace);
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}
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}
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void
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trace_close(int zap_stdio)
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{
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int fd;
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fflush(stdout);
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fflush(stderr);
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if (ftrace != NULL && zap_stdio) {
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if (ftrace != stdout)
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fclose(ftrace);
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ftrace = NULL;
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fd = open(_PATH_DEVNULL, O_RDWR);
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if (fd < 0)
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return;
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if (isatty(STDIN_FILENO))
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(void)dup2(fd, STDIN_FILENO);
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if (isatty(STDOUT_FILENO))
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(void)dup2(fd, STDOUT_FILENO);
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if (isatty(STDERR_FILENO))
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(void)dup2(fd, STDERR_FILENO);
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(void)close(fd);
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}
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lastlog_time.tv_sec = 0;
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}
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void
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trace_flush(void)
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{
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if (ftrace != NULL) {
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fflush(ftrace);
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if (ferror(ftrace))
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trace_off("tracing off: %s", strerror(ferror(ftrace)));
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}
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}
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void
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trace_off(const char *p, ...)
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{
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va_list args;
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if (ftrace != NULL) {
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lastlog();
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va_start(args, p);
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vfprintf(ftrace, p, args);
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va_end(args);
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(void)fputc('\n',ftrace);
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}
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trace_close(file_trace);
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new_tracelevel = tracelevel = 0;
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}
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/* log a change in tracing
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*/
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void
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tracelevel_msg(const char *pat,
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int dump) /* -1=no dump, 0=default, 1=force */
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{
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static const char * const off_msgs[MAX_TRACELEVEL] = {
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"Tracing actions stopped",
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"Tracing packets stopped",
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"Tracing packet contents stopped",
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"Tracing kernel changes stopped",
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};
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static const char * const on_msgs[MAX_TRACELEVEL] = {
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"Tracing actions started",
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"Tracing packets started",
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"Tracing packet contents started",
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"Tracing kernel changes started",
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};
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u_int old_tracelevel = tracelevel;
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if (new_tracelevel < 0)
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new_tracelevel = 0;
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else if (new_tracelevel > MAX_TRACELEVEL)
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new_tracelevel = MAX_TRACELEVEL;
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if (new_tracelevel < tracelevel) {
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if (new_tracelevel <= 0) {
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trace_off(pat, off_msgs[0]);
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} else do {
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tmsg(pat, off_msgs[tracelevel]);
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}
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while (--tracelevel != new_tracelevel);
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} else if (new_tracelevel > tracelevel) {
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do {
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tmsg(pat, on_msgs[tracelevel++]);
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} while (tracelevel != new_tracelevel);
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}
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if (dump > 0
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|| (dump == 0 && old_tracelevel == 0 && tracelevel != 0))
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trace_dump();
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}
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void
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set_tracefile(const char *filename,
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const char *pat,
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int dump) /* -1=no dump, 0=default, 1=force */
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{
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struct stat stbuf;
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FILE *n_ftrace;
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const char *fn;
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/* Allow a null filename to increase the level if the trace file
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* is already open or if coming from a trusted source, such as
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* a signal or the command line.
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*/
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if (filename == NULL || filename[0] == '\0') {
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filename = NULL;
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if (ftrace == NULL) {
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if (inittracename[0] == '\0') {
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msglog("missing trace file name");
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return;
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}
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fn = inittracename;
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} else {
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fn = NULL;
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}
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} else if (!strcmp(filename,"dump/../table")) {
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trace_dump();
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return;
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} else {
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/* Allow the file specified with "-T file" to be reopened,
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* but require all other names specified over the net to
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* match the official path. The path can specify a directory
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* in which the file is to be created.
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*/
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if (strcmp(filename, inittracename)
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#ifdef _PATH_TRACE
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&& (strncmp(filename, _PATH_TRACE, sizeof(_PATH_TRACE)-1)
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|| strstr(filename,"../")
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|| 0 > stat(_PATH_TRACE, &stbuf))
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#endif
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) {
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msglog("wrong trace file \"%s\"", filename);
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return;
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}
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/* If the new tracefile exists, it must be a regular file.
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*/
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if (stat(filename, &stbuf) >= 0 && !S_ISREG(stbuf.st_mode)) {
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msglog("wrong type (%#x) of trace file \"%s\"",
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stbuf.st_mode, filename);
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return;
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}
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fn = filename;
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}
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if (fn != NULL) {
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n_ftrace = fopen(fn, "a");
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if (n_ftrace == NULL) {
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msglog("failed to open trace file \"%s\" %s",
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fn, strerror(errno));
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if (fn == inittracename)
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inittracename[0] = '\0';
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return;
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}
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tmsg("switch to trace file %s", fn);
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trace_close(file_trace = 1);
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if (fn != savetracename)
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strncpy(savetracename, fn, sizeof(savetracename)-1);
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ftrace = n_ftrace;
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fflush(stdout);
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fflush(stderr);
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dup2(fileno(ftrace), STDOUT_FILENO);
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dup2(fileno(ftrace), STDERR_FILENO);
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}
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if (new_tracelevel == 0 || filename == NULL)
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new_tracelevel++;
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tracelevel_msg(pat, dump != 0 ? dump : (filename != NULL));
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}
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/* ARGSUSED */
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void
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sigtrace_on(int s UNUSED)
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{
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new_tracelevel++;
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sigtrace_pat = "SIGUSR1: %s";
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}
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/* ARGSUSED */
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void
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sigtrace_off(int s UNUSED)
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{
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new_tracelevel--;
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sigtrace_pat = "SIGUSR2: %s";
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}
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|
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/* Set tracing after a signal.
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*/
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void
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set_tracelevel(void)
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{
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if (new_tracelevel == tracelevel)
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return;
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/* If tracing entirely off, and there was no tracefile specified
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* on the command line, then leave it off.
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*/
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if (new_tracelevel > tracelevel && ftrace == NULL) {
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if (savetracename[0] != '\0') {
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set_tracefile(savetracename,sigtrace_pat,0);
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} else if (inittracename[0] != '\0') {
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set_tracefile(inittracename,sigtrace_pat,0);
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} else {
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new_tracelevel = 0;
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return;
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}
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} else {
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tracelevel_msg(sigtrace_pat, 0);
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}
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}
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|
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/* display an address
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*/
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char *
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addrname(naddr addr, /* in network byte order */
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naddr mask,
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int force) /* 0=show mask if nonstandard, */
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{ /* 1=always show mask, 2=never */
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#define NUM_BUFS 4
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static int bufno;
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static struct {
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char str[15+20];
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} bufs[NUM_BUFS];
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char *s, *sp;
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naddr dmask;
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size_t l;
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int i;
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strlcpy(bufs[bufno].str, naddr_ntoa(addr), sizeof(bufs[bufno].str));
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s = bufs[bufno].str;
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l = sizeof(bufs[bufno].str);
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bufno = (bufno+1) % NUM_BUFS;
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if (force == 1 || (force == 0 && mask != std_mask(addr))) {
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sp = &s[strlen(s)];
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dmask = mask & -mask;
|
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if (mask + dmask == 0) {
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for (i = 0; i != 32 && ((1<<i) & mask) == 0; i++)
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continue;
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(void)snprintf(sp, s + l - sp, "/%d", 32-i);
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|
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} else {
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(void)snprintf(sp, s + l - sp, " (mask %#x)",
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(u_int)mask);
|
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}
|
|
}
|
|
|
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return s;
|
|
#undef NUM_BUFS
|
|
}
|
|
|
|
|
|
/* display a bit-field
|
|
*/
|
|
struct bits {
|
|
u_int bits_mask;
|
|
u_int bits_clear;
|
|
const char *bits_name;
|
|
};
|
|
|
|
static const struct bits if_bits[] = {
|
|
{ IFF_LOOPBACK, 0, "LOOPBACK" },
|
|
{ IFF_POINTOPOINT, 0, "PT-TO-PT" },
|
|
{ 0, 0, 0}
|
|
};
|
|
|
|
static const struct bits is_bits[] = {
|
|
{ IS_ALIAS, 0, "ALIAS" },
|
|
{ IS_SUBNET, 0, "" },
|
|
{ IS_REMOTE, (IS_NO_RDISC
|
|
| IS_BCAST_RDISC), "REMOTE" },
|
|
{ IS_PASSIVE, (IS_NO_RDISC
|
|
| IS_NO_RIP
|
|
| IS_NO_SUPER_AG
|
|
| IS_PM_RDISC
|
|
| IS_NO_AG), "PASSIVE" },
|
|
{ IS_EXTERNAL, 0, "EXTERNAL" },
|
|
{ IS_CHECKED, 0, "" },
|
|
{ IS_ALL_HOSTS, 0, "" },
|
|
{ IS_ALL_ROUTERS, 0, "" },
|
|
{ IS_DISTRUST, 0, "DISTRUST" },
|
|
{ IS_BROKE, IS_SICK, "BROKEN" },
|
|
{ IS_SICK, 0, "SICK" },
|
|
{ IS_DUP, 0, "DUPLICATE" },
|
|
{ IS_REDIRECT_OK, 0, "REDIRECT_OK" },
|
|
{ IS_NEED_NET_SYN, 0, "" },
|
|
{ IS_NO_AG, IS_NO_SUPER_AG, "NO_AG" },
|
|
{ IS_NO_SUPER_AG, 0, "NO_SUPER_AG" },
|
|
{ (IS_NO_RIPV1_IN
|
|
| IS_NO_RIPV2_IN
|
|
| IS_NO_RIPV1_OUT
|
|
| IS_NO_RIPV2_OUT), 0, "NO_RIP" },
|
|
{ (IS_NO_RIPV1_IN
|
|
| IS_NO_RIPV1_OUT), 0, "RIPV2" },
|
|
{ IS_NO_RIPV1_IN, 0, "NO_RIPV1_IN" },
|
|
{ IS_NO_RIPV2_IN, 0, "NO_RIPV2_IN" },
|
|
{ IS_NO_RIPV1_OUT, 0, "NO_RIPV1_OUT" },
|
|
{ IS_NO_RIPV2_OUT, 0, "NO_RIPV2_OUT" },
|
|
{ (IS_NO_ADV_IN
|
|
| IS_NO_SOL_OUT
|
|
| IS_NO_ADV_OUT), IS_BCAST_RDISC, "NO_RDISC" },
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|
{ IS_NO_SOL_OUT, 0, "NO_SOLICIT" },
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|
{ IS_SOL_OUT, 0, "SEND_SOLICIT" },
|
|
{ IS_NO_ADV_OUT, IS_BCAST_RDISC, "NO_RDISC_ADV" },
|
|
{ IS_ADV_OUT, 0, "RDISC_ADV" },
|
|
{ IS_BCAST_RDISC, 0, "BCAST_RDISC" },
|
|
{ IS_PM_RDISC, 0, "" },
|
|
{ 0, 0, "%#x"}
|
|
};
|
|
|
|
static const struct bits rs_bits[] = {
|
|
{ RS_IF, 0, "IF" },
|
|
{ RS_NET_INT, RS_NET_SYN, "NET_INT" },
|
|
{ RS_NET_SYN, 0, "NET_SYN" },
|
|
{ RS_SUBNET, 0, "" },
|
|
{ RS_LOCAL, 0, "LOCAL" },
|
|
{ RS_MHOME, 0, "MHOME" },
|
|
{ RS_STATIC, 0, "STATIC" },
|
|
{ RS_RDISC, 0, "RDISC" },
|
|
{ 0, 0, "%#x"}
|
|
};
|
|
|
|
|
|
static void
|
|
trace_bits(const struct bits *tbl,
|
|
u_int field,
|
|
int force)
|
|
{
|
|
u_int b;
|
|
char c;
|
|
|
|
if (force) {
|
|
(void)putc('<', ftrace);
|
|
c = 0;
|
|
} else {
|
|
c = '<';
|
|
}
|
|
|
|
while (field != 0
|
|
&& (b = tbl->bits_mask) != 0) {
|
|
if ((b & field) == b) {
|
|
if (tbl->bits_name[0] != '\0') {
|
|
if (c)
|
|
(void)putc(c, ftrace);
|
|
(void)fprintf(ftrace, "%s", tbl->bits_name);
|
|
c = '|';
|
|
}
|
|
if (0 == (field &= ~(b | tbl->bits_clear)))
|
|
break;
|
|
}
|
|
tbl++;
|
|
}
|
|
if (field != 0 && tbl->bits_name != NULL) {
|
|
if (c)
|
|
(void)putc(c, ftrace);
|
|
(void)fprintf(ftrace, tbl->bits_name, field);
|
|
c = '|';
|
|
}
|
|
|
|
if (c != '<' || force)
|
|
(void)fputs("> ", ftrace);
|
|
}
|
|
|
|
|
|
char *
|
|
rtname(naddr dst,
|
|
naddr mask,
|
|
naddr gate)
|
|
{
|
|
static char buf[3*4+3+1+2+3 /* "xxx.xxx.xxx.xxx/xx-->" */
|
|
+3*4+3+1]; /* "xxx.xxx.xxx.xxx" */
|
|
int i;
|
|
|
|
i = sprintf(buf, "%-16s-->", addrname(dst, mask, 0));
|
|
(void)sprintf(&buf[i], "%-*s", 15+20-MAX(20,i), naddr_ntoa(gate));
|
|
return buf;
|
|
}
|
|
|
|
|
|
static void
|
|
print_rts(struct rt_spare *rts,
|
|
int force_metric, /* -1=suppress, 0=default */
|
|
int force_ifp, /* -1=suppress, 0=default */
|
|
int force_router, /* -1=suppress, 0=default, 1=display */
|
|
int force_tag, /* -1=suppress, 0=default, 1=display */
|
|
int force_time) /* 0=suppress, 1=display */
|
|
{
|
|
int i;
|
|
|
|
|
|
if (force_metric >= 0)
|
|
(void)fprintf(ftrace, "metric=%-2d ", rts->rts_metric);
|
|
if (force_ifp >= 0)
|
|
(void)fprintf(ftrace, "%s ", (rts->rts_ifp == NULL ?
|
|
"if?" : rts->rts_ifp->int_name));
|
|
if (force_router > 0
|
|
|| (force_router == 0 && rts->rts_router != rts->rts_gate))
|
|
(void)fprintf(ftrace, "router=%s ",
|
|
naddr_ntoa(rts->rts_router));
|
|
if (force_time > 0)
|
|
(void)fprintf(ftrace, "%s ", ts(rts->rts_time));
|
|
if (force_tag > 0
|
|
|| (force_tag == 0 && rts->rts_tag != 0))
|
|
(void)fprintf(ftrace, "tag=%#x ", ntohs(rts->rts_tag));
|
|
if (rts->rts_de_ag != 0) {
|
|
for (i = 1; (u_int)(1 << i) <= rts->rts_de_ag; i++)
|
|
continue;
|
|
(void)fprintf(ftrace, "de_ag=%d ", i);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
void
|
|
trace_if(const char *act,
|
|
struct interface *ifp)
|
|
{
|
|
if (!TRACEACTIONS || ftrace == NULL)
|
|
return;
|
|
|
|
lastlog();
|
|
(void)fprintf(ftrace, "%-3s interface %-4s ", act, ifp->int_name);
|
|
(void)fprintf(ftrace, "%-15s-->%-15s ",
|
|
naddr_ntoa(ifp->int_addr),
|
|
addrname(((ifp->int_if_flags & IFF_POINTOPOINT)
|
|
? ifp->int_dstaddr
|
|
: htonl(ifp->int_net)),
|
|
ifp->int_mask, 1));
|
|
if (ifp->int_metric != 0)
|
|
(void)fprintf(ftrace, "metric=%d ", ifp->int_metric);
|
|
if (ifp->int_adj_inmetric != 0)
|
|
(void)fprintf(ftrace, "adj_inmetric=%u ",
|
|
ifp->int_adj_inmetric);
|
|
if (ifp->int_adj_outmetric != 0)
|
|
(void)fprintf(ftrace, "adj_outmetric=%u ",
|
|
ifp->int_adj_outmetric);
|
|
if (!IS_RIP_OUT_OFF(ifp->int_state)
|
|
&& ifp->int_d_metric != 0)
|
|
(void)fprintf(ftrace, "fake_default=%u ", ifp->int_d_metric);
|
|
trace_bits(if_bits, ifp->int_if_flags, 0);
|
|
trace_bits(is_bits, ifp->int_state, 0);
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
|
|
|
|
void
|
|
trace_upslot(struct rt_entry *rt,
|
|
struct rt_spare *rts,
|
|
struct rt_spare *new)
|
|
{
|
|
if (!TRACEACTIONS || ftrace == NULL)
|
|
return;
|
|
|
|
if (rts->rts_gate == new->rts_gate
|
|
&& rts->rts_router == new->rts_router
|
|
&& rts->rts_metric == new->rts_metric
|
|
&& rts->rts_tag == new->rts_tag
|
|
&& rts->rts_de_ag == new->rts_de_ag)
|
|
return;
|
|
|
|
lastlog();
|
|
if (new->rts_gate == 0) {
|
|
(void)fprintf(ftrace, "Del #%d %-35s ",
|
|
(int)(rts - rt->rt_spares),
|
|
rtname(rt->rt_dst, rt->rt_mask, rts->rts_gate));
|
|
print_rts(rts, 0,0,0,0,
|
|
(rts != rt->rt_spares
|
|
|| AGE_RT(rt->rt_state,new->rts_ifp)));
|
|
|
|
} else if (rts->rts_gate != RIP_DEFAULT) {
|
|
(void)fprintf(ftrace, "Chg #%d %-35s ",
|
|
(int)(rts - rt->rt_spares),
|
|
rtname(rt->rt_dst, rt->rt_mask, rts->rts_gate));
|
|
print_rts(rts, 0,0,
|
|
rts->rts_gate != new->rts_gate,
|
|
rts->rts_tag != new->rts_tag,
|
|
rts != rt->rt_spares || AGE_RT(rt->rt_state,
|
|
rt->rt_ifp));
|
|
|
|
(void)fprintf(ftrace, "\n %19s%-16s ", "",
|
|
(new->rts_gate != rts->rts_gate
|
|
? naddr_ntoa(new->rts_gate) : ""));
|
|
print_rts(new,
|
|
-(new->rts_metric == rts->rts_metric),
|
|
-(new->rts_ifp == rts->rts_ifp),
|
|
0,
|
|
rts->rts_tag != new->rts_tag,
|
|
(new->rts_time != rts->rts_time
|
|
&& (rts != rt->rt_spares
|
|
|| AGE_RT(rt->rt_state, new->rts_ifp))));
|
|
|
|
} else {
|
|
(void)fprintf(ftrace, "Add #%d %-35s ",
|
|
(int)(rts - rt->rt_spares),
|
|
rtname(rt->rt_dst, rt->rt_mask, new->rts_gate));
|
|
print_rts(new, 0,0,0,0,
|
|
(rts != rt->rt_spares
|
|
|| AGE_RT(rt->rt_state,new->rts_ifp)));
|
|
}
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
|
|
|
|
/* miscellaneous message checked by the caller
|
|
*/
|
|
void
|
|
trace_misc(const char *p, ...)
|
|
{
|
|
va_list args;
|
|
|
|
if (ftrace == NULL)
|
|
return;
|
|
|
|
lastlog();
|
|
va_start(args, p);
|
|
vfprintf(ftrace, p, args);
|
|
va_end(args);
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
|
|
|
|
/* display a message if tracing actions
|
|
*/
|
|
void
|
|
trace_act(const char *p, ...)
|
|
{
|
|
va_list args;
|
|
|
|
if (!TRACEACTIONS || ftrace == NULL)
|
|
return;
|
|
|
|
lastlog();
|
|
va_start(args, p);
|
|
vfprintf(ftrace, p, args);
|
|
va_end(args);
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
|
|
|
|
/* display a message if tracing packets
|
|
*/
|
|
void
|
|
trace_pkt(const char *p, ...)
|
|
{
|
|
va_list args;
|
|
|
|
if (!TRACEPACKETS || ftrace == NULL)
|
|
return;
|
|
|
|
lastlog();
|
|
va_start(args, p);
|
|
vfprintf(ftrace, p, args);
|
|
va_end(args);
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
|
|
|
|
void
|
|
trace_change(struct rt_entry *rt,
|
|
u_int state,
|
|
struct rt_spare *new,
|
|
const char *label)
|
|
{
|
|
if (ftrace == NULL)
|
|
return;
|
|
|
|
if (rt->rt_metric == new->rts_metric
|
|
&& rt->rt_gate == new->rts_gate
|
|
&& rt->rt_router == new->rts_router
|
|
&& rt->rt_state == state
|
|
&& rt->rt_tag == new->rts_tag
|
|
&& rt->rt_de_ag == new->rts_de_ag)
|
|
return;
|
|
|
|
lastlog();
|
|
(void)fprintf(ftrace, "%s %-35s ",
|
|
label,
|
|
rtname(rt->rt_dst, rt->rt_mask, rt->rt_gate));
|
|
print_rts(rt->rt_spares,
|
|
0,0,0,0, AGE_RT(rt->rt_state, rt->rt_ifp));
|
|
trace_bits(rs_bits, rt->rt_state, rt->rt_state != state);
|
|
|
|
(void)fprintf(ftrace, "\n%*s %19s%-16s ",
|
|
(int)strlen(label), "", "",
|
|
(rt->rt_gate != new->rts_gate
|
|
? naddr_ntoa(new->rts_gate) : ""));
|
|
print_rts(new,
|
|
-(new->rts_metric == rt->rt_metric),
|
|
-(new->rts_ifp == rt->rt_ifp),
|
|
0,
|
|
rt->rt_tag != new->rts_tag,
|
|
(rt->rt_time != new->rts_time
|
|
&& AGE_RT(rt->rt_state,new->rts_ifp)));
|
|
if (rt->rt_state != state)
|
|
trace_bits(rs_bits, state, 1);
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
|
|
|
|
void
|
|
trace_add_del(const char * action, struct rt_entry *rt)
|
|
{
|
|
if (ftrace == NULL)
|
|
return;
|
|
|
|
lastlog();
|
|
(void)fprintf(ftrace, "%s %-35s ",
|
|
action,
|
|
rtname(rt->rt_dst, rt->rt_mask, rt->rt_gate));
|
|
print_rts(rt->rt_spares, 0,0,0,0,AGE_RT(rt->rt_state,rt->rt_ifp));
|
|
trace_bits(rs_bits, rt->rt_state, 0);
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static int
|
|
walk_trace(struct radix_node *rn,
|
|
struct walkarg *w UNUSED)
|
|
{
|
|
#define RT ((struct rt_entry *)rn)
|
|
struct rt_spare *rts;
|
|
int i;
|
|
|
|
(void)fprintf(ftrace, " %-35s ",
|
|
rtname(RT->rt_dst, RT->rt_mask, RT->rt_gate));
|
|
print_rts(&RT->rt_spares[0], 0,0,0,0, AGE_RT(RT->rt_state, RT->rt_ifp));
|
|
trace_bits(rs_bits, RT->rt_state, 0);
|
|
if (RT->rt_poison_time >= now_garbage
|
|
&& RT->rt_poison_metric < RT->rt_metric)
|
|
(void)fprintf(ftrace, "pm=%d@%s",
|
|
RT->rt_poison_metric, ts(RT->rt_poison_time));
|
|
|
|
rts = &RT->rt_spares[1];
|
|
for (i = 1; i < NUM_SPARES; i++, rts++) {
|
|
if (rts->rts_gate != RIP_DEFAULT) {
|
|
(void)fprintf(ftrace,"\n #%d%15s%-16s ",
|
|
i, "", naddr_ntoa(rts->rts_gate));
|
|
print_rts(rts, 0,0,0,0,1);
|
|
}
|
|
}
|
|
(void)fputc('\n',ftrace);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void
|
|
trace_dump(void)
|
|
{
|
|
struct interface *ifp;
|
|
|
|
if (ftrace == NULL)
|
|
return;
|
|
lastlog();
|
|
|
|
(void)fputs("current daemon state:\n", ftrace);
|
|
LIST_FOREACH(ifp, &ifnet, int_list)
|
|
trace_if("", ifp);
|
|
(void)rn_walktree(rhead, walk_trace, 0);
|
|
}
|
|
|
|
|
|
void
|
|
trace_rip(const char *dir1, const char *dir2,
|
|
struct sockaddr_in *who,
|
|
struct interface *ifp,
|
|
struct rip *msg,
|
|
int size) /* total size of message */
|
|
{
|
|
struct netinfo *n, *lim;
|
|
# define NA ((struct netauth*)n)
|
|
int i, seen_route;
|
|
|
|
if (!TRACEPACKETS || ftrace == NULL)
|
|
return;
|
|
|
|
lastlog();
|
|
if (msg->rip_cmd >= RIPCMD_MAX
|
|
|| msg->rip_vers == 0) {
|
|
(void)fprintf(ftrace, "%s bad RIPv%d cmd=%d %s"
|
|
" %s.%d size=%d\n",
|
|
dir1, msg->rip_vers, msg->rip_cmd, dir2,
|
|
naddr_ntoa(who->sin_addr.s_addr),
|
|
ntohs(who->sin_port),
|
|
size);
|
|
return;
|
|
}
|
|
|
|
(void)fprintf(ftrace, "%s RIPv%d %s %s %s.%d%s%s\n",
|
|
dir1, msg->rip_vers, ripcmds[msg->rip_cmd], dir2,
|
|
naddr_ntoa(who->sin_addr.s_addr), ntohs(who->sin_port),
|
|
ifp ? " via " : "", ifp ? ifp->int_name : "");
|
|
if (!TRACECONTENTS)
|
|
return;
|
|
|
|
seen_route = 0;
|
|
switch (msg->rip_cmd) {
|
|
case RIPCMD_REQUEST:
|
|
case RIPCMD_RESPONSE:
|
|
n = msg->rip_nets;
|
|
lim = (struct netinfo *)((char*)msg + size);
|
|
for (; n < lim; n++) {
|
|
if (!seen_route
|
|
&& n->n_family == RIP_AF_UNSPEC
|
|
&& ntohl(n->n_metric) == HOPCNT_INFINITY
|
|
&& msg->rip_cmd == RIPCMD_REQUEST
|
|
&& (n+1 == lim
|
|
|| (n+2 == lim
|
|
&& (n+1)->n_family == RIP_AF_AUTH))) {
|
|
(void)fputs("\tQUERY ", ftrace);
|
|
if (n->n_dst != 0)
|
|
(void)fprintf(ftrace, "%s ",
|
|
naddr_ntoa(n->n_dst));
|
|
if (n->n_mask != 0)
|
|
(void)fprintf(ftrace, "mask=%#x ",
|
|
(u_int)ntohl(n->n_mask));
|
|
if (n->n_nhop != 0)
|
|
(void)fprintf(ftrace, "nhop=%s ",
|
|
naddr_ntoa(n->n_nhop));
|
|
if (n->n_tag != 0)
|
|
(void)fprintf(ftrace, "tag=%#x ",
|
|
ntohs(n->n_tag));
|
|
(void)fputc('\n',ftrace);
|
|
continue;
|
|
}
|
|
|
|
if (n->n_family == RIP_AF_AUTH) {
|
|
if (NA->a_type == RIP_AUTH_PW
|
|
&& n == msg->rip_nets) {
|
|
(void)fprintf(ftrace, "\tPassword"
|
|
" Authentication:"
|
|
" \"%s\"\n",
|
|
qstring(NA->au.au_pw,
|
|
RIP_AUTH_PW_LEN));
|
|
continue;
|
|
}
|
|
|
|
if (NA->a_type == RIP_AUTH_MD5
|
|
&& n == msg->rip_nets) {
|
|
(void)fprintf(ftrace,
|
|
"\tMD5 Auth"
|
|
" pkt_len=%d KeyID=%u"
|
|
" auth_len=%d"
|
|
" seqno=%#x"
|
|
" rsvd=%#x,%#x\n",
|
|
ntohs(NA->au.a_md5.md5_pkt_len),
|
|
NA->au.a_md5.md5_keyid,
|
|
NA->au.a_md5.md5_auth_len,
|
|
(int)ntohl(NA->au.a_md5.md5_seqno),
|
|
(int)ntohs(NA->au.a_md5.rsvd[0]),
|
|
(int)ntohs(NA->au.a_md5.rsvd[1]));
|
|
continue;
|
|
}
|
|
(void)fprintf(ftrace,
|
|
"\tAuthentication type %d: ",
|
|
ntohs(NA->a_type));
|
|
for (i = 0;
|
|
i < (int)sizeof(NA->au.au_pw);
|
|
i++)
|
|
(void)fprintf(ftrace, "%02x ",
|
|
NA->au.au_pw[i]);
|
|
(void)fputc('\n',ftrace);
|
|
continue;
|
|
}
|
|
|
|
seen_route = 1;
|
|
if (n->n_family != RIP_AF_INET) {
|
|
(void)fprintf(ftrace,
|
|
"\t(af %d) %-18s mask=%#x ",
|
|
ntohs(n->n_family),
|
|
naddr_ntoa(n->n_dst),
|
|
(u_int)ntohl(n->n_mask));
|
|
} else if (msg->rip_vers == RIPv1) {
|
|
(void)fprintf(ftrace, "\t%-18s ",
|
|
addrname(n->n_dst,
|
|
ntohl(n->n_mask),
|
|
n->n_mask==0 ? 2 : 1));
|
|
} else {
|
|
(void)fprintf(ftrace, "\t%-18s ",
|
|
addrname(n->n_dst,
|
|
ntohl(n->n_mask),
|
|
n->n_mask==0 ? 2 : 0));
|
|
}
|
|
(void)fprintf(ftrace, "metric=%-2d ",
|
|
(u_int)ntohl(n->n_metric));
|
|
if (n->n_nhop != 0)
|
|
(void)fprintf(ftrace, " nhop=%s ",
|
|
naddr_ntoa(n->n_nhop));
|
|
if (n->n_tag != 0)
|
|
(void)fprintf(ftrace, "tag=%#x",
|
|
ntohs(n->n_tag));
|
|
(void)fputc('\n',ftrace);
|
|
}
|
|
if (size != (char *)n - (char *)msg)
|
|
(void)fprintf(ftrace, "truncated record, len %d\n",
|
|
size);
|
|
break;
|
|
|
|
case RIPCMD_TRACEON:
|
|
fprintf(ftrace, "\tfile=\"%.*s\"\n", size-4,
|
|
msg->rip_tracefile);
|
|
break;
|
|
|
|
case RIPCMD_TRACEOFF:
|
|
break;
|
|
}
|
|
}
|