13 bool_t secnet_is_daemon=False;
14 uint32_t message_level=M_WARNING|M_ERR|M_SECURITY|M_FATAL;
15 struct log_if *system_log=NULL;
17 static void vMessage(uint32_t class, const char *message, va_list args)
20 #define MESSAGE_BUFLEN 1023
21 static char buff[MESSAGE_BUFLEN+1]={0,};
25 if (secnet_is_daemon) {
26 /* Messages go to the system log interface */
28 assert(bp < MESSAGE_BUFLEN);
29 vsnprintf(buff+bp,MESSAGE_BUFLEN-bp,message,args);
30 /* Each line is sent separately */
31 while ((nlp=strchr(buff,'\n'))) {
33 slilog(system_log,class,"%s",buff);
34 memmove(buff,nlp+1,strlen(nlp+1)+1);
37 /* Messages go to stdout/stderr */
38 if (class & message_level) {
39 if (class&M_FATAL || class&M_ERR || class&M_WARNING) {
42 vfprintf(dest,message,args);
47 void Message(uint32_t class, const char *message, ...)
52 vMessage(class,message,ap);
56 static NORETURN(vfatal(int status, bool_t perror, const char *message,
59 static void vfatal(int status, bool_t perror, const char *message,
66 enter_phase(PHASE_SHUTDOWN);
67 Message(M_FATAL, "secnet fatal error: ");
68 vMessage(M_FATAL, message, args);
70 Message(M_FATAL, ": %s\n",strerror(err));
72 Message(M_FATAL, "\n");
76 void fatal(const char *message, ...)
79 va_start(args,message);
80 vfatal(current_phase,False,message,args);
84 void fatal_status(int status, const char *message, ...)
87 va_start(args,message);
88 vfatal(status,False,message,args);
92 void fatal_perror(const char *message, ...)
95 va_start(args,message);
96 vfatal(current_phase,True,message,args);
100 void fatal_perror_status(int status, const char *message, ...)
103 va_start(args,message);
104 vfatal(status,True,message,args);
108 void vcfgfatal_maybefile(FILE *maybe_f /* or 0 */, struct cloc loc,
109 cstring_t facility, const char *message, va_list args)
111 enter_phase(PHASE_SHUTDOWN);
113 if (maybe_f && ferror(maybe_f)) {
115 Message(M_FATAL, "error reading config file (%s, %s): %s",
116 facility, loc.file, strerror(errno));
117 } else if (maybe_f && feof(maybe_f)) {
119 Message(M_FATAL, "unexpected end of config file (%s, %s)",
121 } else if (loc.file && loc.line) {
122 Message(M_FATAL, "config error (%s, %s:%d): ",facility,loc.file,
124 } else if (!loc.file && loc.line) {
125 Message(M_FATAL, "config error (%s, line %d): ",facility,loc.line);
127 Message(M_FATAL, "config error (%s): ",facility);
130 vMessage(M_FATAL,message,args);
134 void cfgfatal_maybefile(FILE *maybe_f, struct cloc loc, cstring_t facility,
135 const char *message, ...)
139 va_start(args,message);
140 vcfgfatal_maybefile(maybe_f,loc,facility,message,args);
144 void cfgfatal(struct cloc loc, cstring_t facility, const char *message, ...)
148 va_start(args,message);
149 vcfgfatal_maybefile(0,loc,facility,message,args);
153 void cfgfile_postreadcheck(struct cloc loc, FILE *f)
157 Message(M_FATAL, "error reading config file (%s): %s",
158 loc.file, strerror(errno));
160 } else if (feof(f)) {
161 Message(M_FATAL, "unexpected end of config file (%s)", loc.file);
166 /* Take a list of log closures and merge them */
169 struct loglist *next;
172 static void log_vmulti(void *sst, int class, const char *message, va_list args)
174 struct loglist *st=sst, *i;
176 if (secnet_is_daemon) {
177 for (i=st; i; i=i->next) {
178 i->l->vlog(i->l->st,class,message,args);
181 vMessage(class,message,args);
186 static void log_multi(void *st, int priority, const char *message, ...)
190 va_start(ap,message);
191 log_vmulti(st,priority,message,ap);
195 struct log_if *init_log(list_t *ll)
200 struct loglist *l=NULL, *n;
203 if (list_length(ll)==1) {
204 item=list_elem(ll,0);
205 cl=item->data.closure;
206 if (cl->type!=CL_LOG) {
207 cfgfatal(item->loc,"init_log","closure is not a logger");
209 return cl->interface;
211 while ((item=list_elem(ll,i++))) {
212 if (item->type!=t_closure) {
213 cfgfatal(item->loc,"init_log","item is not a closure");
215 cl=item->data.closure;
216 if (cl->type!=CL_LOG) {
217 cfgfatal(item->loc,"init_log","closure is not a logger");
219 n=safe_malloc(sizeof(*n),"init_log");
225 fatal("init_log: no log");
227 r=safe_malloc(sizeof(*r), "init_log");
243 static cstring_t months[]={
244 "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
246 static void logfile_vlog(void *sst, int class, const char *message,
249 struct logfile *st=sst;
253 if (secnet_is_daemon && st->f) {
254 if (class&st->level) {
257 fprintf(st->f,"%s %2d %02d:%02d:%02d ",
258 months[tm->tm_mon],tm->tm_mday,tm->tm_hour,tm->tm_min,
260 vfprintf(st->f,message,args);
265 vMessage(class,message,args);
270 static void logfile_log(void *state, int class, const char *message, ...)
274 va_start(ap,message);
275 logfile_vlog(state,class,message,ap);
279 static void logfile_hup_notify(void *sst, int signum)
281 struct logfile *st=sst;
283 f=fopen(st->logfile,"a");
285 logfile_log(st,M_FATAL,"received SIGHUP, but could not reopen "
286 "logfile: %s",strerror(errno));
290 logfile_log(st,M_INFO,"received SIGHUP");
294 static void logfile_phase_hook(void *sst, uint32_t new_phase)
296 struct logfile *st=sst;
300 f=fopen(st->logfile,"a");
301 if (!f) fatal_perror("logfile (%s:%d): cannot open \"%s\"",
302 st->loc.file,st->loc.line,st->logfile);
304 request_signal_notification(SIGHUP, logfile_hup_notify,st);
308 static struct flagstr message_class_table[]={
309 { "debug-config", M_DEBUG_CONFIG },
310 { "debug-phase", M_DEBUG_PHASE },
311 { "debug", M_DEBUG },
312 { "all-debug", M_DEBUG|M_DEBUG_PHASE|M_DEBUG_CONFIG },
314 { "notice", M_NOTICE },
315 { "warning", M_WARNING },
317 { "security", M_SECURITY },
318 { "fatal", M_FATAL },
319 { "default", M_WARNING|M_ERR|M_SECURITY|M_FATAL },
320 { "verbose", M_INFO|M_NOTICE|M_WARNING|M_ERR|M_SECURITY|M_FATAL },
321 { "quiet", M_FATAL },
325 static list_t *logfile_apply(closure_t *self, struct cloc loc, dict_t *context,
332 /* We should defer opening the logfile until the getresources
333 phase. We should defer writing into the logfile until after we
336 st=safe_malloc(sizeof(*st),"logfile_apply");
337 st->cl.description="logfile";
340 st->cl.interface=&st->ops;
342 st->ops.log=logfile_log;
343 st->ops.vlog=logfile_vlog;
347 item=list_elem(args,0);
348 if (!item || item->type!=t_dict) {
349 cfgfatal(loc,"logfile","argument must be a dictionary\n");
351 dict=item->data.dict;
353 st->logfile=dict_read_string(dict,"filename",True,"logfile",loc);
354 st->level=string_list_to_word(dict_lookup(dict,"class"),
355 message_class_table,"logfile");
357 add_hook(PHASE_GETRESOURCES,logfile_phase_hook,st);
359 return new_closure(&st->cl);
370 static int msgclass_to_syslogpriority(uint32_t m)
373 case M_DEBUG_CONFIG: return LOG_DEBUG;
374 case M_DEBUG_PHASE: return LOG_DEBUG;
375 case M_DEBUG: return LOG_DEBUG;
376 case M_INFO: return LOG_INFO;
377 case M_NOTICE: return LOG_NOTICE;
378 case M_WARNING: return LOG_WARNING;
379 case M_ERR: return LOG_ERR;
380 case M_SECURITY: return LOG_CRIT;
381 case M_FATAL: return LOG_EMERG;
382 default: return LOG_NOTICE;
386 static void syslog_vlog(void *sst, int class, const char *message,
389 struct syslog *st=sst;
392 vsyslog(msgclass_to_syslogpriority(class),message,args);
394 vMessage(class,message,args);
399 static void syslog_log(void *sst, int priority, const char *message, ...)
403 va_start(ap,message);
404 syslog_vlog(sst,priority,message,ap);
408 static struct flagstr syslog_facility_table[]={
410 { "auth", LOG_AUTH },
413 { "authpriv", LOG_AUTHPRIV },
415 { "cron", LOG_CRON },
416 { "daemon", LOG_DAEMON },
417 { "kern", LOG_KERN },
418 { "local0", LOG_LOCAL0 },
419 { "local1", LOG_LOCAL1 },
420 { "local2", LOG_LOCAL2 },
421 { "local3", LOG_LOCAL3 },
422 { "local4", LOG_LOCAL4 },
423 { "local5", LOG_LOCAL5 },
424 { "local6", LOG_LOCAL6 },
425 { "local7", LOG_LOCAL7 },
427 { "mail", LOG_MAIL },
428 { "news", LOG_NEWS },
429 { "syslog", LOG_SYSLOG },
430 { "user", LOG_USER },
431 { "uucp", LOG_UUCP },
435 static void syslog_phase_hook(void *sst, uint32_t newphase)
437 struct syslog *st=sst;
440 openlog(st->ident,0,st->facility);
445 static list_t *syslog_apply(closure_t *self, struct cloc loc, dict_t *context,
453 st=safe_malloc(sizeof(*st),"syslog_apply");
454 st->cl.description="syslog";
457 st->cl.interface=&st->ops;
459 st->ops.log=syslog_log;
460 st->ops.vlog=syslog_vlog;
462 item=list_elem(args,0);
463 if (!item || item->type!=t_dict)
464 cfgfatal(loc,"syslog","parameter must be a dictionary\n");
467 st->ident=dict_read_string(d, "ident", False, "syslog", loc);
468 facstr=dict_read_string(d, "facility", True, "syslog", loc);
469 st->facility=string_to_word(facstr,loc,
470 syslog_facility_table,"syslog");
472 add_hook(PHASE_GETRESOURCES,syslog_phase_hook,st);
474 return new_closure(&st->cl);
477 /* Read from a fd and output to a log. This is a quick hack to
478 support logging stderr, and needs code adding to tidy up before it
479 can be used for anything else. */
480 #define FDLOG_BUFSIZE 1024
490 static int log_from_fd_beforepoll(void *sst, struct pollfd *fds, int *nfds_io,
492 const struct timeval *tv_now, uint64_t *now)
494 struct fdlog *st=sst;
498 fds[0].events=POLLIN;
503 static void log_from_fd_afterpoll(void *sst, struct pollfd *fds, int nfds,
504 const struct timeval *tv_now, uint64_t *now)
506 struct fdlog *st=sst;
510 if (fds[0].revents&POLLERR) {
513 if (fds[0].revents&POLLIN) {
514 remain=FDLOG_BUFSIZE-st->i-1;
516 st->buffer[FDLOG_BUFSIZE-1]=0;
517 st->log->log(st->log,M_WARNING,"%s: overlong line: %s",
518 st->prefix,st->buffer);
520 remain=FDLOG_BUFSIZE-1;
522 r=read(st->fd,st->buffer+st->i,remain);
525 for (i=0; i<st->i; i++) {
526 if (st->buffer[i]=='\n') {
528 st->log->log(st->log->st,M_INFO,"%s: %s",
529 st->prefix,st->buffer);
531 memmove(st->buffer,st->buffer+i,st->i-i);
537 Message(M_WARNING,"log_from_fd: %s\n",strerror(errno));
543 void log_from_fd(int fd, cstring_t prefix, struct log_if *log)
547 st=safe_malloc(sizeof(*st),"log_from_fd");
551 st->buffer=safe_malloc(FDLOG_BUFSIZE,"log_from_fd");
555 register_for_poll(st,log_from_fd_beforepoll,log_from_fd_afterpoll,1,
559 void log_module(dict_t *dict)
561 add_closure(dict,"logfile",logfile_apply);
562 add_closure(dict,"syslog",syslog_apply);