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[netbsd-mini2440.git] / sbin / routed / trace.c
blobc6883d3b78e9417d04013c2560b7f419a9b8f9f1
1 /* $NetBSD: trace.c,v 1.31 2006/03/22 02:23:11 christos Exp $ */
2
3 /*
4 * Copyright (c) 1983, 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgment:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #define RIPCMDS
37 #include "defs.h"
38 #include "pathnames.h"
39 #include <sys/stat.h>
40 #include <sys/signal.h>
41 #include <fcntl.h>
42
43 #ifdef __NetBSD__
44 __RCSID("$NetBSD: trace.c,v 1.31 2006/03/22 02:23:11 christos Exp $");
45 #elif defined(__FreeBSD__)
46 __RCSID("$FreeBSD$");
47 #else
48 __RCSID("Revision: 2.27 ");
49 #ident "Revision: 2.27 "
50 #endif
51
52
53 #ifdef sgi
54 /* use *stat64 for files on large filesystems */
55 #define stat stat64
56 #endif
57
58 #define NRECORDS 50 /* size of circular trace buffer */
59
60 int tracelevel, new_tracelevel;
61 FILE *ftrace = stdout; /* output trace file */
62 static const char *sigtrace_pat = "%s";
63 static char savetracename[MAXPATHLEN+1];
64 char inittracename[MAXPATHLEN+1];
65 int file_trace; /* 1=tracing to file, not stdout */
66
67 static void trace_dump(void);
68 static void tmsg(const char *, ...) PATTRIB(1,2);
69
70
71 /* convert string to printable characters
72 */
73 static char *
74 qstring(u_char *s, int len)
75 {
76 static char buf[8*20+1];
77 char *p;
78 u_char *s2, c;
79 int n;
80
81 for (p = buf; len != 0 && p < &buf[sizeof(buf)-1]; len--) {
82 c = *s++;
83 if (c == '\0') {
84 for (s2 = s+1; s2 < &s[len]; s2++) {
85 if (*s2 != '\0')
86 break;
87 }
88 if (s2 >= &s[len])
89 goto exit;
90 }
91
92 if (c >= ' ' && c < 0x7f && c != '\\') {
93 *p++ = c;
94 continue;
95 }
96 *p++ = '\\';
97 switch (c) {
98 case '\\':
99 *p++ = '\\';
100 break;
101 case '\n':
102 *p++= 'n';
103 break;
104 case '\r':
105 *p++= 'r';
106 break;
107 case '\t':
108 *p++ = 't';
109 break;
110 case '\b':
111 *p++ = 'b';
112 break;
113 default:
114 n = snprintf(p, sizeof(buf) - (p - buf), "%o", c);
115 if (n <= 0)
116 goto exit;
117 p += n;
118 break;
119 }
120 }
121 exit:
122 *p = '\0';
123 return buf;
124 }
125
126
127 /* convert IP address to a string, but not into a single buffer
128 */
129 char *
130 naddr_ntoa(naddr a)
131 {
132 #define NUM_BUFS 4
133 static int bufno;
134 static struct {
135 char str[16]; /* xxx.xxx.xxx.xxx\0 */
136 } bufs[NUM_BUFS];
137 char *s;
138 struct in_addr addr;
139
140 addr.s_addr = a;
141 strlcpy(bufs[bufno].str, inet_ntoa(addr), sizeof(bufs[bufno].str));
142 s = bufs[bufno].str;
143 bufno = (bufno+1) % NUM_BUFS;
144 return s;
145 #undef NUM_BUFS
146 }
147
148
149 const char *
150 saddr_ntoa(const struct sockaddr *sa)
151 {
152 return (sa == 0) ? "?" : naddr_ntoa(S_ADDR(sa));
153 }
154
155
156 static char *
157 ts(time_t secs) {
158 static char s[20];
159
160 secs += epoch.tv_sec;
161 #ifdef sgi
162 (void)cftime(s, "%T", &secs);
163 #else
164 memcpy(s, ctime(&secs)+11, 8);
165 s[8] = '\0';
166 #endif
167 return s;
168 }
169
170
171 /* On each event, display a time stamp.
172 * This assumes that 'now' is update once for each event, and
173 * that at least now.tv_usec changes.
174 */
175 static struct timeval lastlog_time;
176
177 void
178 lastlog(void)
179 {
180 if (lastlog_time.tv_sec != now.tv_sec
181 || lastlog_time.tv_usec != now.tv_usec) {
182 (void)fprintf(ftrace, "-- %s --\n", ts(now.tv_sec));
183 lastlog_time = now;
184 }
185 }
186
187
188 static void
189 tmsg(const char *p, ...)
190 {
191 va_list args;
192
193 if (ftrace != 0) {
194 lastlog();
195 va_start(args, p);
196 vfprintf(ftrace, p, args);
197 va_end(args);
198 (void)fputc('\n',ftrace);
199 fflush(ftrace);
200 }
201 }
202
203
204 void
205 trace_close(int zap_stdio)
206 {
207 int fd;
208
209
210 fflush(stdout);
211 fflush(stderr);
212
213 if (ftrace != 0 && zap_stdio) {
214 if (ftrace != stdout)
215 fclose(ftrace);
216 ftrace = 0;
217 fd = open(_PATH_DEVNULL, O_RDWR);
218 if (fd == -1)
219 return;
220 if (isatty(STDIN_FILENO))
221 (void)dup2(fd, STDIN_FILENO);
222 if (isatty(STDOUT_FILENO))
223 (void)dup2(fd, STDOUT_FILENO);
224 if (isatty(STDERR_FILENO))
225 (void)dup2(fd, STDERR_FILENO);
226 (void)close(fd);
227 }
228 lastlog_time.tv_sec = 0;
229 }
230
231
232 void
233 trace_flush(void)
234 {
235 if (ftrace != 0) {
236 fflush(ftrace);
237 if (ferror(ftrace))
238 trace_off("tracing off: %s", strerror(ferror(ftrace)));
239 }
240 }
241
242
243 void
244 trace_off(const char *p, ...)
245 {
246 va_list args;
247
248
249 if (ftrace != 0) {
250 lastlog();
251 va_start(args, p);
252 vfprintf(ftrace, p, args);
253 va_end(args);
254 (void)fputc('\n',ftrace);
255 }
256 trace_close(file_trace);
257
258 new_tracelevel = tracelevel = 0;
259 }
260
261
262 /* log a change in tracing
263 */
264 void
265 tracelevel_msg(const char *pat,
266 int dump) /* -1=no dump, 0=default, 1=force */
267 {
268 static const char *off_msgs[MAX_TRACELEVEL] = {
269 "Tracing actions stopped",
270 "Tracing packets stopped",
271 "Tracing packet contents stopped",
272 "Tracing kernel changes stopped",
273 };
274 static const char *on_msgs[MAX_TRACELEVEL] = {
275 "Tracing actions started",
276 "Tracing packets started",
277 "Tracing packet contents started",
278 "Tracing kernel changes started",
279 };
280 u_int old_tracelevel = tracelevel;
281
282
283 if (new_tracelevel < 0)
284 new_tracelevel = 0;
285 else if (new_tracelevel > MAX_TRACELEVEL)
286 new_tracelevel = MAX_TRACELEVEL;
287
288 if (new_tracelevel < tracelevel) {
289 if (new_tracelevel <= 0) {
290 trace_off(pat, off_msgs[0]);
291 } else do {
292 tmsg(pat, off_msgs[tracelevel]);
293 }
294 while (--tracelevel != new_tracelevel);
295
296 } else if (new_tracelevel > tracelevel) {
297 do {
298 tmsg(pat, on_msgs[tracelevel++]);
299 } while (tracelevel != new_tracelevel);
300 }
301
302 if (dump > 0
303 || (dump == 0 && old_tracelevel == 0 && tracelevel != 0))
304 trace_dump();
305 }
306
307
308 void
309 set_tracefile(const char *filename,
310 const char *pat,
311 int dump) /* -1=no dump, 0=default, 1=force */
312 {
313 struct stat stbuf;
314 FILE *n_ftrace;
315 const char *fn;
316
317
318 /* Allow a null filename to increase the level if the trace file
319 * is already open or if coming from a trusted source, such as
320 * a signal or the command line.
321 */
322 if (filename == 0 || filename[0] == '\0') {
323 filename = 0;
324 if (ftrace == 0) {
325 if (inittracename[0] == '\0') {
326 msglog("missing trace file name");
327 return;
328 }
329 fn = inittracename;
330 } else {
331 fn = 0;
332 }
333
334 } else if (!strcmp(filename,"dump/../table")) {
335 trace_dump();
336 return;
337
338 } else {
339 /* Allow the file specified with "-T file" to be reopened,
340 * but require all other names specified over the net to
341 * match the official path. The path can specify a directory
342 * in which the file is to be created.
343 */
344 if (strcmp(filename, inittracename)
345 #ifdef _PATH_TRACE
346 && (strncmp(filename, _PATH_TRACE, sizeof(_PATH_TRACE)-1)
347 || strstr(filename,"../")
348 || 0 > stat(_PATH_TRACE, &stbuf))
349 #endif
350 ) {
351 msglog("wrong trace file \"%s\"", filename);
352 return;
353 }
354
355 /* If the new tracefile exists, it must be a regular file.
356 */
357 if (stat(filename, &stbuf) >= 0 && !S_ISREG(stbuf.st_mode)) {
358 msglog("wrong type (%#x) of trace file \"%s\"",
359 stbuf.st_mode, filename);
360 return;
361 }
362
363 fn = filename;
364 }
365
366 if (fn != 0) {
367 n_ftrace = fopen(fn, "a");
368 if (n_ftrace == 0) {
369 msglog("failed to open trace file \"%s\" %s",
370 fn, strerror(errno));
371 if (fn == inittracename)
372 inittracename[0] = '\0';
373 return;
374 }
375
376 tmsg("switch to trace file %s", fn);
377
378 trace_close(file_trace = 1);
379
380 if (fn != savetracename)
381 strlcpy(savetracename, fn, sizeof(savetracename));
382 ftrace = n_ftrace;
383
384 fflush(stdout);
385 fflush(stderr);
386 dup2(fileno(ftrace), STDOUT_FILENO);
387 dup2(fileno(ftrace), STDERR_FILENO);
388 }
389
390 if (new_tracelevel == 0 || filename == 0)
391 new_tracelevel++;
392 tracelevel_msg(pat, dump != 0 ? dump : (filename != 0));
393 }
394
395
396 /* ARGSUSED */
397 void
398 sigtrace_on(int s UNUSED)
399 {
400 new_tracelevel++;
401 sigtrace_pat = "SIGUSR1: %s";
402 }
403
404
405 /* ARGSUSED */
406 void
407 sigtrace_off(int s UNUSED)
408 {
409 new_tracelevel--;
410 sigtrace_pat = "SIGUSR2: %s";
411 }
412
413
414 /* Set tracing after a signal.
415 */
416 void
417 set_tracelevel(void)
418 {
419 if (new_tracelevel == tracelevel)
420 return;
421
422 /* If tracing entirely off, and there was no tracefile specified
423 * on the command line, then leave it off.
424 */
425 if (new_tracelevel > tracelevel && ftrace == 0) {
426 if (savetracename[0] != '\0') {
427 set_tracefile(savetracename,sigtrace_pat,0);
428 } else if (inittracename[0] != '\0') {
429 set_tracefile(inittracename,sigtrace_pat,0);
430 } else {
431 new_tracelevel = 0;
432 return;
433 }
434 } else {
435 tracelevel_msg(sigtrace_pat, 0);
436 }
437 }
438
439
440 /* display an address
441 */
442 char *
443 addrname(naddr addr, /* in network byte order */
444 naddr mask,
445 int force) /* 0=show mask if nonstandard, */
446 { /* 1=always show mask, 2=never */
447 #define NUM_BUFS 4
448 static int bufno;
449 static struct {
450 char str[15+20];
451 } bufs[NUM_BUFS];
452 char *s, *sp;
453 naddr dmask;
454 size_t l;
455 int i;
456
457 strlcpy(bufs[bufno].str, naddr_ntoa(addr), sizeof(bufs[bufno].str));
458 s = bufs[bufno].str;
459 l = sizeof(bufs[bufno].str);
460 bufno = (bufno+1) % NUM_BUFS;
461
462 if (force == 1 || (force == 0 && mask != std_mask(addr))) {
463 sp = &s[strlen(s)];
464
465 dmask = mask & -mask;
466 if (mask + dmask == 0) {
467 for (i = 0; i != 32 && ((1<<i) & mask) == 0; i++)
468 continue;
469 (void)snprintf(sp, s + l - sp, "/%d", 32-i);
470
471 } else {
472 (void)snprintf(sp, s + l - sp, " (mask %#x)",
473 (u_int)mask);
474 }
475 }
476
477 return s;
478 #undef NUM_BUFS
479 }
480
481
482 /* display a bit-field
483 */
484 struct bits {
485 u_int bits_mask;
486 u_int bits_clear;
487 const char *bits_name;
488 };
489
490 static struct bits if_bits[] = {
491 { IFF_LOOPBACK, 0, "LOOPBACK" },
492 { IFF_POINTOPOINT, 0, "PT-TO-PT" },
493 { 0, 0, 0}
494 };
495
496 static struct bits is_bits[] = {
497 { IS_ALIAS, 0, "ALIAS" },
498 { IS_SUBNET, 0, "" },
499 { IS_REMOTE, (IS_NO_RDISC
500 | IS_BCAST_RDISC), "REMOTE" },
501 { IS_PASSIVE, (IS_NO_RDISC
502 | IS_NO_RIP
503 | IS_NO_SUPER_AG
504 | IS_PM_RDISC
505 | IS_NO_AG), "PASSIVE" },
506 { IS_EXTERNAL, 0, "EXTERNAL" },
507 { IS_CHECKED, 0, "" },
508 { IS_ALL_HOSTS, 0, "" },
509 { IS_ALL_ROUTERS, 0, "" },
510 { IS_DISTRUST, 0, "DISTRUST" },
511 { IS_BROKE, IS_SICK, "BROKEN" },
512 { IS_SICK, 0, "SICK" },
513 { IS_DUP, 0, "DUPLICATE" },
514 { IS_REDIRECT_OK, 0, "REDIRECT_OK" },
515 { IS_NEED_NET_SYN, 0, "" },
516 { IS_NO_AG, IS_NO_SUPER_AG, "NO_AG" },
517 { IS_NO_SUPER_AG, 0, "NO_SUPER_AG" },
518 { (IS_NO_RIPV1_IN
519 | IS_NO_RIPV2_IN
520 | IS_NO_RIPV1_OUT
521 | IS_NO_RIPV2_OUT), 0, "NO_RIP" },
522 { (IS_NO_RIPV1_IN
523 | IS_NO_RIPV1_OUT), 0, "RIPV2" },
524 { IS_NO_RIPV1_IN, 0, "NO_RIPV1_IN" },
525 { IS_NO_RIPV2_IN, 0, "NO_RIPV2_IN" },
526 { IS_NO_RIPV1_OUT, 0, "NO_RIPV1_OUT" },
527 { IS_NO_RIPV2_OUT, 0, "NO_RIPV2_OUT" },
528 { (IS_NO_ADV_IN
529 | IS_NO_SOL_OUT
530 | IS_NO_ADV_OUT), IS_BCAST_RDISC, "NO_RDISC" },
531 { IS_NO_SOL_OUT, 0, "NO_SOLICIT" },
532 { IS_SOL_OUT, 0, "SEND_SOLICIT" },
533 { IS_NO_ADV_OUT, IS_BCAST_RDISC, "NO_RDISC_ADV" },
534 { IS_ADV_OUT, 0, "RDISC_ADV" },
535 { IS_BCAST_RDISC, 0, "BCAST_RDISC" },
536 { IS_PM_RDISC, 0, "" },
537 { 0, 0, "%#x"}
538 };
539
540 static struct bits rs_bits[] = {
541 { RS_IF, 0, "IF" },
542 { RS_NET_INT, RS_NET_SYN, "NET_INT" },
543 { RS_NET_SYN, 0, "NET_SYN" },
544 { RS_SUBNET, 0, "" },
545 { RS_LOCAL, 0, "LOCAL" },
546 { RS_MHOME, 0, "MHOME" },
547 { RS_STATIC, 0, "STATIC" },
548 { RS_RDISC, 0, "RDISC" },
549 { 0, 0, "%#x"}
550 };
551
552
553 static void
554 trace_bits(const struct bits *tbl,
555 u_int field,
556 int force)
557 {
558 u_int b;
559 char c;
560
561 if (force) {
562 (void)putc('<', ftrace);
563 c = 0;
564 } else {
565 c = '<';
566 }
567
568 while (field != 0
569 && (b = tbl->bits_mask) != 0) {
570 if ((b & field) == b) {
571 if (tbl->bits_name[0] != '\0') {
572 if (c)
573 (void)putc(c, ftrace);
574 (void)fprintf(ftrace, "%s", tbl->bits_name);
575 c = '|';
576 }
577 if (0 == (field &= ~(b | tbl->bits_clear)))
578 break;
579 }
580 tbl++;
581 }
582 if (field != 0 && tbl->bits_name != 0) {
583 if (c)
584 (void)putc(c, ftrace);
585 (void)fprintf(ftrace, tbl->bits_name, field);
586 c = '|';
587 }
588
589 if (c != '<' || force)
590 (void)fputs("> ", ftrace);
591 }
592
593
594 char *
595 rtname(naddr dst,
596 naddr mask,
597 naddr gate)
598 {
599 static char buf[3*4+3+1+2+3 /* "xxx.xxx.xxx.xxx/xx-->" */
600 +3*4+3+1]; /* "xxx.xxx.xxx.xxx" */
601 int i;
602
603 i = snprintf(buf, sizeof(buf), "%-16s-->", addrname(dst, mask, 0));
604 if (i < 0 || (size_t)i >= sizeof(buf))
605 return buf;
606 (void)snprintf(&buf[i], sizeof(buf) - i, "%-*s", 15+20-MAX(20, i),
607 naddr_ntoa(gate));
608 return buf;
609 }
610
611
612 static void
613 print_rts(struct rt_spare *rts,
614 int force_metric, /* -1=suppress, 0=default */
615 int force_ifp, /* -1=suppress, 0=default */
616 int force_router, /* -1=suppress, 0=default, 1=display */
617 int force_tag, /* -1=suppress, 0=default, 1=display */
618 int force_time) /* 0=suppress, 1=display */
619 {
620 int i;
621
622
623 if (force_metric >= 0)
624 (void)fprintf(ftrace, "metric=%-2d ", rts->rts_metric);
625 if (force_ifp >= 0)
626 (void)fprintf(ftrace, "%s ", (rts->rts_ifp == 0 ?
627 "if?" : rts->rts_ifp->int_name));
628 if (force_router > 0
629 || (force_router == 0 && rts->rts_router != rts->rts_gate))
630 (void)fprintf(ftrace, "router=%s ",
631 naddr_ntoa(rts->rts_router));
632 if (force_time > 0)
633 (void)fprintf(ftrace, "%s ", ts(rts->rts_time));
634 if (force_tag > 0
635 || (force_tag == 0 && rts->rts_tag != 0))
636 (void)fprintf(ftrace, "tag=%#x ", ntohs(rts->rts_tag));
637 if (rts->rts_de_ag != 0) {
638 for (i = 1; (u_int)(1 << i) <= rts->rts_de_ag; i++)
639 continue;
640 (void)fprintf(ftrace, "de_ag=%d ", i);
641 }
642
643 }
644
645
646 void
647 trace_if(const char *act,
648 struct interface *ifp)
649 {
650 if (!TRACEACTIONS || ftrace == 0)
651 return;
652
653 lastlog();
654 (void)fprintf(ftrace, "%-3s interface %-4s ", act, ifp->int_name);
655 (void)fprintf(ftrace, "%-15s-->%-15s ",
656 naddr_ntoa(ifp->int_addr),
657 addrname(((ifp->int_if_flags & IFF_POINTOPOINT)
658 ? ifp->int_dstaddr
659 : htonl(ifp->int_net)),
660 ifp->int_mask, 1));
661 if (ifp->int_metric != 0)
662 (void)fprintf(ftrace, "metric=%d ", ifp->int_metric);
663 if (ifp->int_adj_inmetric != 0)
664 (void)fprintf(ftrace, "adj_inmetric=%u ",
665 ifp->int_adj_inmetric);
666 if (ifp->int_adj_outmetric != 0)
667 (void)fprintf(ftrace, "adj_outmetric=%u ",
668 ifp->int_adj_outmetric);
669 if (!IS_RIP_OUT_OFF(ifp->int_state)
670 && ifp->int_d_metric != 0)
671 (void)fprintf(ftrace, "fake_default=%u ", ifp->int_d_metric);
672 trace_bits(if_bits, ifp->int_if_flags, 0);
673 trace_bits(is_bits, ifp->int_state, 0);
674 (void)fputc('\n',ftrace);
675 }
676
677
678 void
679 trace_upslot(struct rt_entry *rt,
680 struct rt_spare *rts,
681 struct rt_spare *new)
682 {
683 if (!TRACEACTIONS || ftrace == 0)
684 return;
685
686 if (rts->rts_gate == new->rts_gate
687 && rts->rts_router == new->rts_router
688 && rts->rts_metric == new->rts_metric
689 && rts->rts_tag == new->rts_tag
690 && rts->rts_de_ag == new->rts_de_ag)
691 return;
692
693 lastlog();
694 if (new->rts_gate == 0) {
695 (void)fprintf(ftrace, "Del #%d %-35s ",
696 (int)(rts - rt->rt_spares),
697 rtname(rt->rt_dst, rt->rt_mask, rts->rts_gate));
698 print_rts(rts, 0,0,0,0,
699 (rts != rt->rt_spares
700 || AGE_RT(rt->rt_state,new->rts_ifp)));
701
702 } else if (rts->rts_gate != RIP_DEFAULT) {
703 (void)fprintf(ftrace, "Chg #%d %-35s ",
704 (int)(rts - rt->rt_spares),
705 rtname(rt->rt_dst, rt->rt_mask, rts->rts_gate));
706 print_rts(rts, 0,0,
707 rts->rts_gate != new->rts_gate,
708 rts->rts_tag != new->rts_tag,
709 rts != rt->rt_spares || AGE_RT(rt->rt_state,
710 rt->rt_ifp));
711
712 (void)fprintf(ftrace, "\n %19s%-16s ", "",
713 (new->rts_gate != rts->rts_gate
714 ? naddr_ntoa(new->rts_gate) : ""));
715 print_rts(new,
716 -(new->rts_metric == rts->rts_metric),
717 -(new->rts_ifp == rts->rts_ifp),
718 0,
719 rts->rts_tag != new->rts_tag,
720 (new->rts_time != rts->rts_time
721 && (rts != rt->rt_spares
722 || AGE_RT(rt->rt_state, new->rts_ifp))));
723
724 } else {
725 (void)fprintf(ftrace, "Add #%d %-35s ",
726 (int)(rts - rt->rt_spares),
727 rtname(rt->rt_dst, rt->rt_mask, new->rts_gate));
728 print_rts(new, 0,0,0,0,
729 (rts != rt->rt_spares
730 || AGE_RT(rt->rt_state,new->rts_ifp)));
731 }
732 (void)fputc('\n',ftrace);
733 }
734
735
736 /* miscellaneous message checked by the caller
737 */
738 void
739 trace_misc(const char *p, ...)
740 {
741 va_list args;
742
743 if (ftrace == 0)
744 return;
745
746 lastlog();
747 va_start(args, p);
748 vfprintf(ftrace, p, args);
749 va_end(args);
750 (void)fputc('\n',ftrace);
751 }
752
753
754 /* display a message if tracing actions
755 */
756 void
757 trace_act(const char *p, ...)
758 {
759 va_list args;
760
761 if (!TRACEACTIONS || ftrace == 0)
762 return;
763
764 lastlog();
765 va_start(args, p);
766 vfprintf(ftrace, p, args);
767 va_end(args);
768 (void)fputc('\n',ftrace);
769 }
770
771
772 /* display a message if tracing packets
773 */
774 void
775 trace_pkt(const char *p, ...)
776 {
777 va_list args;
778
779 if (!TRACEPACKETS || ftrace == 0)
780 return;
781
782 lastlog();
783 va_start(args, p);
784 vfprintf(ftrace, p, args);
785 va_end(args);
786 (void)fputc('\n',ftrace);
787 }
788
789
790 void
791 trace_change(struct rt_entry *rt,
792 u_int state,
793 struct rt_spare *new,
794 const char *label)
795 {
796 if (ftrace == 0)
797 return;
798
799 if (rt->rt_metric == new->rts_metric
800 && rt->rt_gate == new->rts_gate
801 && rt->rt_router == new->rts_router
802 && rt->rt_state == state
803 && rt->rt_tag == new->rts_tag
804 && rt->rt_de_ag == new->rts_de_ag)
805 return;
806
807 lastlog();
808 (void)fprintf(ftrace, "%s %-35s ",
809 label,
810 rtname(rt->rt_dst, rt->rt_mask, rt->rt_gate));
811 print_rts(rt->rt_spares,
812 0,0,0,0, AGE_RT(rt->rt_state, rt->rt_ifp));
813 trace_bits(rs_bits, rt->rt_state, rt->rt_state != state);
814
815 (void)fprintf(ftrace, "\n%*s %19s%-16s ",
816 (int)strlen(label), "", "",
817 (rt->rt_gate != new->rts_gate
818 ? naddr_ntoa(new->rts_gate) : ""));
819 print_rts(new,
820 -(new->rts_metric == rt->rt_metric),
821 -(new->rts_ifp == rt->rt_ifp),
822 0,
823 rt->rt_tag != new->rts_tag,
824 (rt->rt_time != new->rts_time
825 && AGE_RT(rt->rt_state,new->rts_ifp)));
826 if (rt->rt_state != state)
827 trace_bits(rs_bits, state, 1);
828 (void)fputc('\n',ftrace);
829 }
830
831
832 void
833 trace_add_del(const char * action, struct rt_entry *rt)
834 {
835 if (ftrace == 0)
836 return;
837
838 lastlog();
839 (void)fprintf(ftrace, "%s %-35s ",
840 action,
841 rtname(rt->rt_dst, rt->rt_mask, rt->rt_gate));
842 print_rts(rt->rt_spares, 0,0,0,0,AGE_RT(rt->rt_state,rt->rt_ifp));
843 trace_bits(rs_bits, rt->rt_state, 0);
844 (void)fputc('\n',ftrace);
845 }
846
847
848 /* ARGSUSED */
849 static int
850 walk_trace(struct radix_node *rn,
851 struct walkarg *w UNUSED)
852 {
853 #define RT ((struct rt_entry *)rn)
854 struct rt_spare *rts;
855 int i;
856
857 (void)fprintf(ftrace, " %-35s ",
858 rtname(RT->rt_dst, RT->rt_mask, RT->rt_gate));
859 print_rts(&RT->rt_spares[0], 0,0,0,0, AGE_RT(RT->rt_state, RT->rt_ifp));
860 trace_bits(rs_bits, RT->rt_state, 0);
861 if (RT->rt_poison_time >= now_garbage
862 && RT->rt_poison_metric < RT->rt_metric)
863 (void)fprintf(ftrace, "pm=%d@%s",
864 RT->rt_poison_metric, ts(RT->rt_poison_time));
865
866 rts = &RT->rt_spares[1];
867 for (i = 1; i < NUM_SPARES; i++, rts++) {
868 if (rts->rts_gate != RIP_DEFAULT) {
869 (void)fprintf(ftrace,"\n #%d%15s%-16s ",
870 i, "", naddr_ntoa(rts->rts_gate));
871 print_rts(rts, 0,0,0,0,1);
872 }
873 }
874 (void)fputc('\n',ftrace);
875
876 return 0;
877 }
878
879
880 static void
881 trace_dump(void)
882 {
883 struct interface *ifp;
884
885 if (ftrace == 0)
886 return;
887 lastlog();
888
889 (void)fputs("current daemon state:\n", ftrace);
890 for (ifp = ifnet; ifp != 0; ifp = ifp->int_next)
891 trace_if("", ifp);
892 (void)rn_walktree(rhead, walk_trace, 0);
893 }
894
895
896 void
897 trace_rip(const char *dir1, const char *dir2,
898 struct sockaddr_in *who,
899 struct interface *ifp,
900 struct rip *msg,
901 int size) /* total size of message */
902 {
903 struct netinfo *n, *lim;
904 # define NA ((struct netauth*)n)
905 int i, seen_route;
906
907 if (!TRACEPACKETS || ftrace == 0)
908 return;
909
910 lastlog();
911 if (msg->rip_cmd >= RIPCMD_MAX
912 || msg->rip_vers == 0) {
913 (void)fprintf(ftrace, "%s bad RIPv%d cmd=%d %s"
914 " %s.%d size=%d\n",
915 dir1, msg->rip_vers, msg->rip_cmd, dir2,
916 naddr_ntoa(who->sin_addr.s_addr),
917 ntohs(who->sin_port),
918 size);
919 return;
920 }
921
922 (void)fprintf(ftrace, "%s RIPv%d %s %s %s.%d%s%s\n",
923 dir1, msg->rip_vers, ripcmds[msg->rip_cmd], dir2,
924 naddr_ntoa(who->sin_addr.s_addr), ntohs(who->sin_port),
925 ifp ? " via " : "", ifp ? ifp->int_name : "");
926 if (!TRACECONTENTS)
927 return;
928
929 seen_route = 0;
930 switch (msg->rip_cmd) {
931 case RIPCMD_REQUEST:
932 case RIPCMD_RESPONSE:
933 n = msg->rip_nets;
934 lim = (struct netinfo *)((char*)msg + size);
935 for (; n < lim; n++) {
936 if (!seen_route
937 && n->n_family == RIP_AF_UNSPEC
938 && ntohl(n->n_metric) == HOPCNT_INFINITY
939 && msg->rip_cmd == RIPCMD_REQUEST
940 && (n+1 == lim
941 || (n+2 == lim
942 && (n+1)->n_family == RIP_AF_AUTH))) {
943 (void)fputs("\tQUERY ", ftrace);
944 if (n->n_dst != 0)
945 (void)fprintf(ftrace, "%s ",
946 naddr_ntoa(n->n_dst));
947 if (n->n_mask != 0)
948 (void)fprintf(ftrace, "mask=%#x ",
949 (u_int)ntohl(n->n_mask));
950 if (n->n_nhop != 0)
951 (void)fprintf(ftrace, "nhop=%s ",
952 naddr_ntoa(n->n_nhop));
953 if (n->n_tag != 0)
954 (void)fprintf(ftrace, "tag=%#x ",
955 ntohs(n->n_tag));
956 (void)fputc('\n',ftrace);
957 continue;
958 }
959
960 if (n->n_family == RIP_AF_AUTH) {
961 if (NA->a_type == RIP_AUTH_PW
962 && n == msg->rip_nets) {
963 (void)fprintf(ftrace, "\tPassword"
964 " Authentication:"
965 " \"%s\"\n",
966 qstring(NA->au.au_pw,
967 RIP_AUTH_PW_LEN));
968 continue;
969 }
970
971 if (NA->a_type == RIP_AUTH_MD5
972 && n == msg->rip_nets) {
973 (void)fprintf(ftrace,
974 "\tMD5 Auth"
975 " pkt_len=%d KeyID=%u"
976 " auth_len=%d"
977 " seqno=%#x"
978 " rsvd=%#x,%#x\n",
979 ntohs(NA->au.a_md5.md5_pkt_len),
980 NA->au.a_md5.md5_keyid,
981 NA->au.a_md5.md5_auth_len,
982 (int)ntohl(NA->au.a_md5.md5_seqno),
983 (int)ntohs(NA->au.a_md5.rsvd[0]),
984 (int)ntohs(NA->au.a_md5.rsvd[1]));
985 continue;
986 }
987 (void)fprintf(ftrace,
988 "\tAuthentication type %d: ",
989 ntohs(NA->a_type));
990 for (i = 0;
991 i < (int)sizeof(NA->au.au_pw);
992 i++)
993 (void)fprintf(ftrace, "%02x ",
994 NA->au.au_pw[i]);
995 (void)fputc('\n',ftrace);
996 continue;
997 }
998
999 seen_route = 1;
1000 if (n->n_family != RIP_AF_INET) {
1001 (void)fprintf(ftrace,
1002 "\t(af %d) %-18s mask=%#x ",
1003 ntohs(n->n_family),
1004 naddr_ntoa(n->n_dst),
1005 (u_int)ntohl(n->n_mask));
1006 } else if (msg->rip_vers == RIPv1) {
1007 (void)fprintf(ftrace, "\t%-18s ",
1008 addrname(n->n_dst,
1009 ntohl(n->n_mask),
1010 n->n_mask==0 ? 2 : 1));
1011 } else {
1012 (void)fprintf(ftrace, "\t%-18s ",
1013 addrname(n->n_dst,
1014 ntohl(n->n_mask),
1015 n->n_mask==0 ? 2 : 0));
1016 }
1017 (void)fprintf(ftrace, "metric=%-2d ",
1018 (u_int)ntohl(n->n_metric));
1019 if (n->n_nhop != 0)
1020 (void)fprintf(ftrace, " nhop=%s ",
1021 naddr_ntoa(n->n_nhop));
1022 if (n->n_tag != 0)
1023 (void)fprintf(ftrace, "tag=%#x",
1024 ntohs(n->n_tag));
1025 (void)fputc('\n',ftrace);
1026 }
1027 if (size != (char *)n - (char *)msg)
1028 (void)fprintf(ftrace, "truncated record, len %d\n",
1029 size);
1030 break;
1031
1032 case RIPCMD_TRACEON:
1033 fprintf(ftrace, "\tfile=\"%.*s\"\n", size-4,
1034 msg->rip_tracefile);
1035 break;
1036
1037 case RIPCMD_TRACEOFF:
1038 break;
1039 }
1040 }
NetBSD on the FriendlyARM MINI2440