2 * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/types.h>
42 #include "descriptor.h"
45 static const char *const LogNames[] = {
54 "Filter", /* Log discarded packets */
73 #define MSK(n) (1<<((n)-1))
75 static u_long LogMask = MSK(LogPHASE);
76 static u_long LogMaskLocal = MSK(LogERROR) | MSK(LogALERT) | MSK(LogWARN);
77 static int LogTunno = -1;
78 static const char *LogIfaceName;
79 static struct prompt *promptlist; /* Where to log local stuff */
80 struct prompt *log_PromptContext;
81 int log_PromptListChanged;
90 log_RegisterPrompt(struct prompt *prompt)
92 prompt->next = promptlist;
95 log_DiscardAllLocal(&prompt->logmask);
99 log_ActivatePrompt(struct prompt *prompt)
102 LogMaskLocal |= prompt->logmask;
106 LogSetMaskLocal(void)
110 LogMaskLocal = MSK(LogERROR) | MSK(LogALERT) | MSK(LogWARN);
111 for (p = promptlist; p; p = p->next)
112 LogMaskLocal |= p->logmask;
116 log_DeactivatePrompt(struct prompt *prompt)
118 if (prompt->active) {
125 log_UnRegisterPrompt(struct prompt *prompt)
130 for (p = &promptlist; *p; p = &(*p)->next)
137 log_PromptListChanged++;
142 log_DestroyPrompts(struct server *s)
144 struct prompt *p, *pn, *pl;
150 if (s && p->owner == s) {
154 promptlist = p->next;
156 prompt_Destroy(p, 1);
168 for (p = promptlist; p; p = p->next)
173 log_WritePrompts(struct datalink *dl, const char *fmt,...)
179 for (p = promptlist; p; p = p->next)
180 if (prompt_IsTermMode(p, dl))
181 prompt_vPrintf(p, fmt, ap);
186 log_SetTtyCommandMode(struct datalink *dl)
190 for (p = promptlist; p; p = p->next)
191 if (prompt_IsTermMode(p, dl))
192 prompt_TtyCommandMode(p);
211 return lev >= LogMIN && lev <= LogMAX ? LOG_INFO : 0;
219 return id < LogMIN || id > LogMAX ? "Unknown" : LogNames[id - 1];
225 if (id >= LogMIN && id <= LogMAXCONF)
230 log_KeepLocal(int id, u_long *mask)
232 if (id >= LogMIN && id <= LogMAXCONF) {
233 LogMaskLocal |= MSK(id);
241 if (id >= LogMIN && id <= LogMAXCONF)
246 log_DiscardLocal(int id, u_long *mask)
248 if (id >= LogMIN && id <= LogMAXCONF) {
261 log_DiscardAllLocal(u_long *mask)
263 *mask = MSK(LogERROR) | MSK(LogALERT) | MSK(LogWARN);
271 return LOG_KEPT_SYSLOG;
272 if (id < LogMIN || id > LogMAX)
275 return LOG_KEPT_LOCAL | LOG_KEPT_SYSLOG;
277 return ((LogMaskLocal & MSK(id)) ? LOG_KEPT_LOCAL : 0) |
278 ((LogMask & MSK(id)) ? LOG_KEPT_SYSLOG : 0);
282 log_IsKeptLocal(int id, u_long mask)
284 if (id < LogMIN || id > LogMAX)
287 return LOG_KEPT_LOCAL | LOG_KEPT_SYSLOG;
289 return ((mask & MSK(id)) ? LOG_KEPT_LOCAL : 0) |
290 ((LogMask & MSK(id)) ? LOG_KEPT_SYSLOG : 0);
294 log_Open(const char *Name)
296 openlog(Name, LOG_PID, LOG_DAEMON);
300 log_SetTun(int tunno, const char *ifaceName)
303 LogIfaceName = ifaceName;
315 log_Printf(int lev, const char *fmt,...)
318 struct prompt *prompt;
320 if (log_IsKept(lev)) {
324 if (promptlist && (log_IsKept(lev) & LOG_KEPT_LOCAL)) {
325 if ((log_IsKept(LogTUN) & LOG_KEPT_LOCAL) && LogTunno != -1) {
327 snprintf(nfmt, sizeof nfmt, "%s%d(%s): %s: %s", TUN_NAME,
328 LogTunno, LogIfaceName, log_Name(lev), fmt);
330 snprintf(nfmt, sizeof nfmt, "%s%d: %s: %s", TUN_NAME,
331 LogTunno, log_Name(lev), fmt);
333 snprintf(nfmt, sizeof nfmt, "%s: %s", log_Name(lev), fmt);
335 if (log_PromptContext && lev == LogWARN)
336 /* Warnings just go to the current prompt */
337 prompt_vPrintf(log_PromptContext, nfmt, ap);
338 else for (prompt = promptlist; prompt; prompt = prompt->next)
339 if (lev > LogMAXCONF || (prompt->logmask & MSK(lev)))
340 prompt_vPrintf(prompt, nfmt, ap);
345 if ((log_IsKept(lev) & LOG_KEPT_SYSLOG) &&
346 (lev != LogWARN || !log_PromptContext)) {
347 if ((log_IsKept(LogTUN) & LOG_KEPT_SYSLOG) && LogTunno != -1) {
349 snprintf(nfmt, sizeof nfmt, "%s%d(%s): %s: %s", TUN_NAME,
350 LogTunno, LogIfaceName, log_Name(lev), fmt);
352 snprintf(nfmt, sizeof nfmt, "%s%d: %s: %s", TUN_NAME,
353 LogTunno, log_Name(lev), fmt);
355 snprintf(nfmt, sizeof nfmt, "%s: %s", log_Name(lev), fmt);
356 vsyslog(syslogLevel(lev), nfmt, ap);
363 log_DumpBp(int lev, const char *hdr, const struct mbuf *bp)
365 if (log_IsKept(lev)) {
372 log_Printf(lev, "%s\n", hdr);
378 ptr = CONST_MBUF_CTOP(bp);
380 sprintf(b, " %02x", (int) *ptr);
381 *c++ = isprint(*ptr) ? *ptr : '.';
387 log_Printf(lev, "%s\n", buf);
392 } while ((bp = bp->m_next) != NULL);
395 memset(b, ' ', 50 - (b - buf));
397 log_Printf(lev, "%s\n", buf);
403 log_DumpBuff(int lev, const char *hdr, const u_char *ptr, int n)
405 if (log_IsKept(lev)) {
410 log_Printf(lev, "%s\n", hdr);
414 for (b = buf; b != buf + 48 && n--; b += 3, ptr++) {
415 sprintf(b, " %02x", (int) *ptr);
416 *c++ = isprint(*ptr) ? *ptr : '.';
418 memset(b, ' ', 50 - (b - buf));
420 log_Printf(lev, "%s\n", buf);
426 log_ShowLevel(struct cmdargs const *arg)
430 prompt_Printf(arg->prompt, "Log: ");
431 for (i = LogMIN; i <= LogMAX; i++)
432 if (log_IsKept(i) & LOG_KEPT_SYSLOG)
433 prompt_Printf(arg->prompt, " %s", log_Name(i));
435 prompt_Printf(arg->prompt, "\nLocal:");
436 for (i = LogMIN; i <= LogMAX; i++)
437 if (log_IsKeptLocal(i, arg->prompt->logmask) & LOG_KEPT_LOCAL)
438 prompt_Printf(arg->prompt, " %s", log_Name(i));
440 prompt_Printf(arg->prompt, "\n");
446 log_SetLevel(struct cmdargs const *arg)
448 int i, res, argc, local;
449 char const *const *argv, *argp;
451 argc = arg->argc - arg->argn;
452 argv = arg->argv + arg->argn;
455 if (argc == 0 || strcasecmp(argv[0], "local"))
458 if (arg->prompt == NULL) {
459 log_Printf(LogWARN, "set log local: Only available on the"
468 if (argc == 0 || (argv[0][0] != '+' && argv[0][0] != '-')) {
470 log_DiscardAllLocal(&arg->prompt->logmask);
476 argp = **argv == '+' || **argv == '-' ? *argv + 1 : *argv;
477 /* Special case 'all' */
478 if (strcasecmp(argp, "all") == 0) {
481 for (i = LogMIN; i <= LogMAX; i++)
482 log_DiscardLocal(i, &arg->prompt->logmask);
484 for (i = LogMIN; i <= LogMAX; i++)
487 for (i = LogMIN; i <= LogMAX; i++)
488 log_KeepLocal(i, &arg->prompt->logmask);
490 for (i = LogMIN; i <= LogMAX; i++)
495 for (i = LogMIN; i <= LogMAX; i++)
496 if (strcasecmp(argp, log_Name(i)) == 0) {
499 log_DiscardLocal(i, &arg->prompt->logmask);
503 log_KeepLocal(i, &arg->prompt->logmask);
509 log_Printf(LogWARN, "%s: Invalid log value\n", argp);
518 log_ShowWho(struct cmdargs const *arg)
522 for (p = promptlist; p; p = p->next) {
523 prompt_Printf(arg->prompt, "%s (%s)", p->src.type, p->src.from);
524 if (p == arg->prompt)
525 prompt_Printf(arg->prompt, " *");
527 prompt_Printf(arg->prompt, " ^Z");
528 prompt_Printf(arg->prompt, "\n");