12 bool_t secnet_is_daemon=False;
13 uint32_t message_level=M_WARNING|M_ERR|M_SECURITY|M_FATAL;
14 struct log_if *system_log=NULL;
16 static void vMessage(uint32_t class, const char *message, va_list args)
19 #define MESSAGE_BUFLEN 1023
20 static char buff[MESSAGE_BUFLEN+1]={0,};
24 if (secnet_is_daemon) {
25 /* Messages go to the system log interface */
27 vsnprintf(buff+bp,MESSAGE_BUFLEN-bp,message,args);
28 /* Each line is sent separately */
29 while ((nlp=strchr(buff,'\n'))) {
31 slilog(system_log,class,buff);
32 memmove(buff,nlp+1,strlen(nlp+1)+1);
35 /* Messages go to stdout/stderr */
36 if (class & message_level) {
37 if (class&M_FATAL || class&M_ERR || class&M_WARNING) {
40 vfprintf(dest,message,args);
45 void Message(uint32_t class, const char *message, ...)
50 vMessage(class,message,ap);
54 static NORETURN(vfatal(int status, bool_t perror, const char *message,
57 static void vfatal(int status, bool_t perror, const char *message,
64 enter_phase(PHASE_SHUTDOWN);
65 Message(M_FATAL, "secnet fatal error: ");
66 vMessage(M_FATAL, message, args);
68 Message(M_FATAL, ": %s\n",strerror(err));
70 Message(M_FATAL, "\n");
74 void fatal(const char *message, ...)
77 va_start(args,message);
78 vfatal(current_phase,False,message,args);
82 void fatal_status(int status, const char *message, ...)
85 va_start(args,message);
86 vfatal(status,False,message,args);
90 void fatal_perror(const char *message, ...)
93 va_start(args,message);
94 vfatal(current_phase,True,message,args);
98 void fatal_perror_status(int status, const char *message, ...)
101 va_start(args,message);
102 vfatal(status,True,message,args);
106 void vcfgfatal_maybefile(FILE *maybe_f /* or 0 */, struct cloc loc,
107 cstring_t facility, const char *message, va_list args)
109 enter_phase(PHASE_SHUTDOWN);
111 if (maybe_f && ferror(maybe_f)) {
113 Message(M_FATAL, "error reading config file (%s, %s): %s",
114 facility, loc.file, strerror(errno));
115 } else if (maybe_f && feof(maybe_f)) {
117 Message(M_FATAL, "unexpected end of config file (%s, %s)",
119 } else if (loc.file && loc.line) {
120 Message(M_FATAL, "config error (%s, %s:%d): ",facility,loc.file,
122 } else if (!loc.file && loc.line) {
123 Message(M_FATAL, "config error (%s, line %d): ",facility,loc.line);
125 Message(M_FATAL, "config error (%s): ",facility);
128 vMessage(M_FATAL,message,args);
132 void cfgfatal_maybefile(FILE *maybe_f, struct cloc loc, cstring_t facility,
133 const char *message, ...)
137 va_start(args,message);
138 vcfgfatal_maybefile(maybe_f,loc,facility,message,args);
142 void cfgfatal(struct cloc loc, cstring_t facility, const char *message, ...)
146 va_start(args,message);
147 vcfgfatal_maybefile(0,loc,facility,message,args);
151 void cfgfile_postreadcheck(struct cloc loc, FILE *f)
155 Message(M_FATAL, "error reading config file (%s): %s",
156 loc.file, strerror(errno));
158 } else if (feof(f)) {
159 Message(M_FATAL, "unexpected end of config file (%s)", loc.file);
164 /* Take a list of log closures and merge them */
167 struct loglist *next;
170 static void log_vmulti(void *sst, int class, const char *message, va_list args)
172 struct loglist *st=sst, *i;
174 if (secnet_is_daemon) {
175 for (i=st; i; i=i->next) {
176 i->l->vlog(i->l->st,class,message,args);
179 vMessage(class,message,args);
184 static void log_multi(void *st, int priority, const char *message, ...)
188 va_start(ap,message);
189 log_vmulti(st,priority,message,ap);
193 struct log_if *init_log(list_t *ll)
198 struct loglist *l=NULL, *n;
201 if (list_length(ll)==1) {
202 item=list_elem(ll,0);
203 cl=item->data.closure;
204 if (cl->type!=CL_LOG) {
205 cfgfatal(item->loc,"init_log","closure is not a logger");
207 return cl->interface;
209 while ((item=list_elem(ll,i++))) {
210 if (item->type!=t_closure) {
211 cfgfatal(item->loc,"init_log","item is not a closure");
213 cl=item->data.closure;
214 if (cl->type!=CL_LOG) {
215 cfgfatal(item->loc,"init_log","closure is not a logger");
217 n=safe_malloc(sizeof(*n),"init_log");
223 fatal("init_log: no log");
225 r=safe_malloc(sizeof(*r), "init_log");
241 static cstring_t months[]={
242 "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
244 static void logfile_vlog(void *sst, int class, const char *message,
247 struct logfile *st=sst;
251 if (secnet_is_daemon && st->f) {
252 if (class&st->level) {
255 fprintf(st->f,"%s %2d %02d:%02d:%02d ",
256 months[tm->tm_mon],tm->tm_mday,tm->tm_hour,tm->tm_min,
258 vfprintf(st->f,message,args);
263 vMessage(class,message,args);
268 static void logfile_log(void *state, int class, const char *message, ...)
272 va_start(ap,message);
273 logfile_vlog(state,class,message,ap);
277 static void logfile_hup_notify(void *sst, int signum)
279 struct logfile *st=sst;
281 f=fopen(st->logfile,"a");
283 logfile_log(st,M_FATAL,"received SIGHUP, but could not reopen "
284 "logfile: %s",strerror(errno));
288 logfile_log(st,M_INFO,"received SIGHUP");
292 static void logfile_phase_hook(void *sst, uint32_t new_phase)
294 struct logfile *st=sst;
298 f=fopen(st->logfile,"a");
299 if (!f) fatal_perror("logfile (%s:%d): cannot open \"%s\"",
300 st->loc.file,st->loc.line,st->logfile);
302 request_signal_notification(SIGHUP, logfile_hup_notify,st);
306 static struct flagstr message_class_table[]={
307 { "debug-config", M_DEBUG_CONFIG },
308 { "debug-phase", M_DEBUG_PHASE },
309 { "debug", M_DEBUG },
310 { "all-debug", M_DEBUG|M_DEBUG_PHASE|M_DEBUG_CONFIG },
312 { "notice", M_NOTICE },
313 { "warning", M_WARNING },
315 { "security", M_SECURITY },
316 { "fatal", M_FATAL },
317 { "default", M_WARNING|M_ERR|M_SECURITY|M_FATAL },
318 { "verbose", M_INFO|M_NOTICE|M_WARNING|M_ERR|M_SECURITY|M_FATAL },
319 { "quiet", M_FATAL },
323 static list_t *logfile_apply(closure_t *self, struct cloc loc, dict_t *context,
330 /* We should defer opening the logfile until the getresources
331 phase. We should defer writing into the logfile until after we
334 st=safe_malloc(sizeof(*st),"logfile_apply");
335 st->cl.description="logfile";
338 st->cl.interface=&st->ops;
340 st->ops.log=logfile_log;
341 st->ops.vlog=logfile_vlog;
345 item=list_elem(args,0);
346 if (!item || item->type!=t_dict) {
347 cfgfatal(loc,"logfile","argument must be a dictionary\n");
349 dict=item->data.dict;
351 st->logfile=dict_read_string(dict,"filename",True,"logfile",loc);
352 st->level=string_list_to_word(dict_lookup(dict,"class"),
353 message_class_table,"logfile");
355 add_hook(PHASE_GETRESOURCES,logfile_phase_hook,st);
357 return new_closure(&st->cl);
368 static int msgclass_to_syslogpriority(uint32_t m)
371 case M_DEBUG_CONFIG: return LOG_DEBUG;
372 case M_DEBUG_PHASE: return LOG_DEBUG;
373 case M_DEBUG: return LOG_DEBUG;
374 case M_INFO: return LOG_INFO;
375 case M_NOTICE: return LOG_NOTICE;
376 case M_WARNING: return LOG_WARNING;
377 case M_ERR: return LOG_ERR;
378 case M_SECURITY: return LOG_CRIT;
379 case M_FATAL: return LOG_EMERG;
380 default: return LOG_NOTICE;
384 static void syslog_vlog(void *sst, int class, const char *message,
387 struct syslog *st=sst;
390 vsyslog(msgclass_to_syslogpriority(class),message,args);
392 vMessage(class,message,args);
397 static void syslog_log(void *sst, int priority, const char *message, ...)
401 va_start(ap,message);
402 syslog_vlog(sst,priority,message,ap);
406 static struct flagstr syslog_facility_table[]={
408 { "auth", LOG_AUTH },
411 { "authpriv", LOG_AUTHPRIV },
413 { "cron", LOG_CRON },
414 { "daemon", LOG_DAEMON },
415 { "kern", LOG_KERN },
416 { "local0", LOG_LOCAL0 },
417 { "local1", LOG_LOCAL1 },
418 { "local2", LOG_LOCAL2 },
419 { "local3", LOG_LOCAL3 },
420 { "local4", LOG_LOCAL4 },
421 { "local5", LOG_LOCAL5 },
422 { "local6", LOG_LOCAL6 },
423 { "local7", LOG_LOCAL7 },
425 { "mail", LOG_MAIL },
426 { "news", LOG_NEWS },
427 { "syslog", LOG_SYSLOG },
428 { "user", LOG_USER },
429 { "uucp", LOG_UUCP },
433 static void syslog_phase_hook(void *sst, uint32_t newphase)
435 struct syslog *st=sst;
438 openlog(st->ident,0,st->facility);
443 static list_t *syslog_apply(closure_t *self, struct cloc loc, dict_t *context,
451 st=safe_malloc(sizeof(*st),"syslog_apply");
452 st->cl.description="syslog";
455 st->cl.interface=&st->ops;
457 st->ops.log=syslog_log;
458 st->ops.vlog=syslog_vlog;
460 item=list_elem(args,0);
461 if (!item || item->type!=t_dict)
462 cfgfatal(loc,"syslog","parameter must be a dictionary\n");
465 st->ident=dict_read_string(d, "ident", False, "syslog", loc);
466 facstr=dict_read_string(d, "facility", True, "syslog", loc);
467 st->facility=string_to_word(facstr,loc,
468 syslog_facility_table,"syslog");
470 add_hook(PHASE_GETRESOURCES,syslog_phase_hook,st);
472 return new_closure(&st->cl);
475 /* Read from a fd and output to a log. This is a quick hack to
476 support logging stderr, and needs code adding to tidy up before it
477 can be used for anything else. */
478 #define FDLOG_BUFSIZE 1024
488 static int log_from_fd_beforepoll(void *sst, struct pollfd *fds, int *nfds_io,
490 const struct timeval *tv_now, uint64_t *now)
492 struct fdlog *st=sst;
496 fds[0].events=POLLIN;
501 static void log_from_fd_afterpoll(void *sst, struct pollfd *fds, int nfds,
502 const struct timeval *tv_now, uint64_t *now)
504 struct fdlog *st=sst;
508 if (fds[0].revents&POLLERR) {
511 if (fds[0].revents&POLLIN) {
512 remain=FDLOG_BUFSIZE-st->i-1;
514 st->buffer[FDLOG_BUFSIZE-1]=0;
515 st->log->log(st->log,M_WARNING,"%s: overlong line: %s",
516 st->prefix,st->buffer);
518 remain=FDLOG_BUFSIZE-1;
520 r=read(st->fd,st->buffer+st->i,remain);
523 for (i=0; i<st->i; i++) {
524 if (st->buffer[i]=='\n') {
526 st->log->log(st->log->st,M_INFO,"%s: %s",
527 st->prefix,st->buffer);
529 memmove(st->buffer,st->buffer+i,st->i-i);
535 Message(M_WARNING,"log_from_fd: %s\n",strerror(errno));
541 void log_from_fd(int fd, cstring_t prefix, struct log_if *log)
545 st=safe_malloc(sizeof(*st),"log_from_fd");
549 st->buffer=safe_malloc(FDLOG_BUFSIZE,"log_from_fd");
553 register_for_poll(st,log_from_fd_beforepoll,log_from_fd_afterpoll,1,
557 init_module log_module;
558 void log_module(dict_t *dict)
560 add_closure(dict,"logfile",logfile_apply);
561 add_closure(dict,"syslog",syslog_apply);