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 vMessageFallback(uint32_t class, const char *message
, va_list args
)
20 /* Messages go to stdout/stderr */
21 if (class & message_level
) {
22 if (class&M_FATAL
|| class&M_ERR
|| class&M_WARNING
) {
25 vfprintf(dest
,message
,args
);
29 static void vMessage(uint32_t class, const char *message
, va_list args
)
31 #define MESSAGE_BUFLEN 1023
32 static char buff
[MESSAGE_BUFLEN
+1]={0,};
37 /* Messages go to the system log interface */
39 assert(bp
< MESSAGE_BUFLEN
);
40 vsnprintf(buff
+bp
,MESSAGE_BUFLEN
-bp
,message
,args
);
41 /* Each line is sent separately */
42 while ((nlp
=strchr(buff
,'\n'))) {
44 slilog(system_log
,class,"%s",buff
);
45 memmove(buff
,nlp
+1,strlen(nlp
+1)+1);
48 vMessageFallback(class,message
,args
);
52 void Message(uint32_t class, const char *message
, ...)
57 vMessage(class,message
,ap
);
61 static void MessageFallback(uint32_t class, const char *message
, ...)
66 vMessageFallback(class,message
,ap
);
70 static NORETURN(vfatal(int status
, bool_t perror
, const char *message
,
73 static void vfatal(int status
, bool_t perror
, const char *message
,
80 enter_phase(PHASE_SHUTDOWN
);
81 Message(M_FATAL
, "secnet fatal error: ");
82 vMessage(M_FATAL
, message
, args
);
84 Message(M_FATAL
, ": %s\n",strerror(err
));
86 Message(M_FATAL
, "\n");
90 void fatal(const char *message
, ...)
93 va_start(args
,message
);
94 vfatal(current_phase
,False
,message
,args
);
98 void fatal_status(int status
, const char *message
, ...)
101 va_start(args
,message
);
102 vfatal(status
,False
,message
,args
);
106 void fatal_perror(const char *message
, ...)
109 va_start(args
,message
);
110 vfatal(current_phase
,True
,message
,args
);
114 void fatal_perror_status(int status
, const char *message
, ...)
117 va_start(args
,message
);
118 vfatal(status
,True
,message
,args
);
122 void vcfgfatal_maybefile(FILE *maybe_f
/* or 0 */, struct cloc loc
,
123 cstring_t facility
, const char *message
, va_list args
)
125 enter_phase(PHASE_SHUTDOWN
);
127 if (maybe_f
&& ferror(maybe_f
)) {
129 Message(M_FATAL
, "error reading config file (%s, %s): %s",
130 facility
, loc
.file
, strerror(errno
));
131 } else if (maybe_f
&& feof(maybe_f
)) {
133 Message(M_FATAL
, "unexpected end of config file (%s, %s)",
135 } else if (loc
.file
&& loc
.line
) {
136 Message(M_FATAL
, "config error (%s, %s:%d): ",facility
,loc
.file
,
138 } else if (!loc
.file
&& loc
.line
) {
139 Message(M_FATAL
, "config error (%s, line %d): ",facility
,loc
.line
);
141 Message(M_FATAL
, "config error (%s): ",facility
);
144 vMessage(M_FATAL
,message
,args
);
148 void cfgfatal_maybefile(FILE *maybe_f
, struct cloc loc
, cstring_t facility
,
149 const char *message
, ...)
153 va_start(args
,message
);
154 vcfgfatal_maybefile(maybe_f
,loc
,facility
,message
,args
);
158 void cfgfatal(struct cloc loc
, cstring_t facility
, const char *message
, ...)
162 va_start(args
,message
);
163 vcfgfatal_maybefile(0,loc
,facility
,message
,args
);
167 void cfgfile_postreadcheck(struct cloc loc
, FILE *f
)
171 Message(M_FATAL
, "error reading config file (%s): %s",
172 loc
.file
, strerror(errno
));
174 } else if (feof(f
)) {
175 Message(M_FATAL
, "unexpected end of config file (%s)", loc
.file
);
180 /* Take a list of log closures and merge them */
183 struct loglist
*next
;
186 static void log_vmulti(void *sst
, int class, const char *message
, va_list args
)
188 struct loglist
*st
=sst
, *i
;
190 if (secnet_is_daemon
) {
191 for (i
=st
; i
; i
=i
->next
) {
192 i
->l
->vlog(i
->l
->st
,class,message
,args
);
195 vMessage(class,message
,args
);
200 static void log_multi(void *st
, int priority
, const char *message
, ...)
204 va_start(ap
,message
);
205 log_vmulti(st
,priority
,message
,ap
);
209 struct log_if
*init_log(list_t
*ll
)
214 struct loglist
*l
=NULL
, *n
;
217 if (list_length(ll
)==1) {
218 item
=list_elem(ll
,0);
219 cl
=item
->data
.closure
;
220 if (cl
->type
!=CL_LOG
) {
221 cfgfatal(item
->loc
,"init_log","closure is not a logger");
223 return cl
->interface
;
225 while ((item
=list_elem(ll
,i
++))) {
226 if (item
->type
!=t_closure
) {
227 cfgfatal(item
->loc
,"init_log","item is not a closure");
229 cl
=item
->data
.closure
;
230 if (cl
->type
!=CL_LOG
) {
231 cfgfatal(item
->loc
,"init_log","closure is not a logger");
233 n
=safe_malloc(sizeof(*n
),"init_log");
239 fatal("init_log: no log");
241 r
=safe_malloc(sizeof(*r
), "init_log");
257 static cstring_t months
[]={
258 "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
260 static void logfile_vlog(void *sst
, int class, const char *message
,
263 struct logfile
*st
=sst
;
267 if (secnet_is_daemon
&& st
->f
) {
268 if (class&st
->level
) {
271 fprintf(st
->f
,"%s %2d %02d:%02d:%02d ",
272 months
[tm
->tm_mon
],tm
->tm_mday
,tm
->tm_hour
,tm
->tm_min
,
274 vfprintf(st
->f
,message
,args
);
279 vMessageFallback(class,message
,args
);
280 MessageFallback(class,"\n");
284 static void logfile_log(void *state
, int class, const char *message
, ...)
288 va_start(ap
,message
);
289 logfile_vlog(state
,class,message
,ap
);
293 static void logfile_hup_notify(void *sst
, int signum
)
295 struct logfile
*st
=sst
;
297 f
=fopen(st
->logfile
,"a");
299 logfile_log(st
,M_FATAL
,"received SIGHUP, but could not reopen "
300 "logfile: %s",strerror(errno
));
304 logfile_log(st
,M_INFO
,"received SIGHUP");
308 static void logfile_phase_hook(void *sst
, uint32_t new_phase
)
310 struct logfile
*st
=sst
;
314 f
=fopen(st
->logfile
,"a");
315 if (!f
) fatal_perror("logfile (%s:%d): cannot open \"%s\"",
316 st
->loc
.file
,st
->loc
.line
,st
->logfile
);
318 request_signal_notification(SIGHUP
, logfile_hup_notify
,st
);
322 static struct flagstr message_class_table
[]={
323 { "debug-config", M_DEBUG_CONFIG
},
324 { "debug-phase", M_DEBUG_PHASE
},
325 { "debug", M_DEBUG
},
326 { "all-debug", M_DEBUG
|M_DEBUG_PHASE
|M_DEBUG_CONFIG
},
328 { "notice", M_NOTICE
},
329 { "warning", M_WARNING
},
331 { "security", M_SECURITY
},
332 { "fatal", M_FATAL
},
333 { "default", M_WARNING
|M_ERR
|M_SECURITY
|M_FATAL
},
334 { "verbose", M_INFO
|M_NOTICE
|M_WARNING
|M_ERR
|M_SECURITY
|M_FATAL
},
335 { "quiet", M_FATAL
},
339 static list_t
*logfile_apply(closure_t
*self
, struct cloc loc
, dict_t
*context
,
346 /* We should defer opening the logfile until the getresources
347 phase. We should defer writing into the logfile until after we
350 st
=safe_malloc(sizeof(*st
),"logfile_apply");
351 st
->cl
.description
="logfile";
354 st
->cl
.interface
=&st
->ops
;
356 st
->ops
.log
=logfile_log
;
357 st
->ops
.vlog
=logfile_vlog
;
361 item
=list_elem(args
,0);
362 if (!item
|| item
->type
!=t_dict
) {
363 cfgfatal(loc
,"logfile","argument must be a dictionary\n");
365 dict
=item
->data
.dict
;
367 st
->logfile
=dict_read_string(dict
,"filename",True
,"logfile",loc
);
368 st
->level
=string_list_to_word(dict_lookup(dict
,"class"),
369 message_class_table
,"logfile");
371 add_hook(PHASE_GETRESOURCES
,logfile_phase_hook
,st
);
373 return new_closure(&st
->cl
);
384 static int msgclass_to_syslogpriority(uint32_t m
)
387 case M_DEBUG_CONFIG
: return LOG_DEBUG
;
388 case M_DEBUG_PHASE
: return LOG_DEBUG
;
389 case M_DEBUG
: return LOG_DEBUG
;
390 case M_INFO
: return LOG_INFO
;
391 case M_NOTICE
: return LOG_NOTICE
;
392 case M_WARNING
: return LOG_WARNING
;
393 case M_ERR
: return LOG_ERR
;
394 case M_SECURITY
: return LOG_CRIT
;
395 case M_FATAL
: return LOG_EMERG
;
396 default: return LOG_NOTICE
;
400 static void syslog_vlog(void *sst
, int class, const char *message
,
403 struct syslog
*st
=sst
;
406 vsyslog(msgclass_to_syslogpriority(class),message
,args
);
408 vMessageFallback(class,message
,args
);
409 MessageFallback(class,"\n");
413 static void syslog_log(void *sst
, int priority
, const char *message
, ...)
417 va_start(ap
,message
);
418 syslog_vlog(sst
,priority
,message
,ap
);
422 static struct flagstr syslog_facility_table
[]={
424 { "auth", LOG_AUTH
},
427 { "authpriv", LOG_AUTHPRIV
},
429 { "cron", LOG_CRON
},
430 { "daemon", LOG_DAEMON
},
431 { "kern", LOG_KERN
},
432 { "local0", LOG_LOCAL0
},
433 { "local1", LOG_LOCAL1
},
434 { "local2", LOG_LOCAL2
},
435 { "local3", LOG_LOCAL3
},
436 { "local4", LOG_LOCAL4
},
437 { "local5", LOG_LOCAL5
},
438 { "local6", LOG_LOCAL6
},
439 { "local7", LOG_LOCAL7
},
441 { "mail", LOG_MAIL
},
442 { "news", LOG_NEWS
},
443 { "syslog", LOG_SYSLOG
},
444 { "user", LOG_USER
},
445 { "uucp", LOG_UUCP
},
449 static void syslog_phase_hook(void *sst
, uint32_t newphase
)
451 struct syslog
*st
=sst
;
454 openlog(st
->ident
,0,st
->facility
);
459 static list_t
*syslog_apply(closure_t
*self
, struct cloc loc
, dict_t
*context
,
467 st
=safe_malloc(sizeof(*st
),"syslog_apply");
468 st
->cl
.description
="syslog";
471 st
->cl
.interface
=&st
->ops
;
473 st
->ops
.log
=syslog_log
;
474 st
->ops
.vlog
=syslog_vlog
;
476 item
=list_elem(args
,0);
477 if (!item
|| item
->type
!=t_dict
)
478 cfgfatal(loc
,"syslog","parameter must be a dictionary\n");
481 st
->ident
=dict_read_string(d
, "ident", False
, "syslog", loc
);
482 facstr
=dict_read_string(d
, "facility", True
, "syslog", loc
);
483 st
->facility
=string_to_word(facstr
,loc
,
484 syslog_facility_table
,"syslog");
486 add_hook(PHASE_GETRESOURCES
,syslog_phase_hook
,st
);
488 return new_closure(&st
->cl
);
491 /* Read from a fd and output to a log. This is a quick hack to
492 support logging stderr, and needs code adding to tidy up before it
493 can be used for anything else. */
494 #define FDLOG_BUFSIZE 1024
504 static int log_from_fd_beforepoll(void *sst
, struct pollfd
*fds
, int *nfds_io
,
507 struct fdlog
*st
=sst
;
511 fds
[0].events
=POLLIN
;
516 static void log_from_fd_afterpoll(void *sst
, struct pollfd
*fds
, int nfds
)
518 struct fdlog
*st
=sst
;
522 if (fds
[0].revents
&POLLERR
) {
525 if (fds
[0].revents
&POLLIN
) {
526 remain
=FDLOG_BUFSIZE
-st
->i
-1;
528 st
->buffer
[FDLOG_BUFSIZE
-1]=0;
529 st
->log
->log(st
->log
,M_WARNING
,"%s: overlong line: %s",
530 st
->prefix
,st
->buffer
);
532 remain
=FDLOG_BUFSIZE
-1;
534 r
=read(st
->fd
,st
->buffer
+st
->i
,remain
);
537 for (i
=0; i
<st
->i
; i
++) {
538 if (st
->buffer
[i
]=='\n') {
540 st
->log
->log(st
->log
->st
,M_INFO
,"%s: %s",
541 st
->prefix
,st
->buffer
);
543 memmove(st
->buffer
,st
->buffer
+i
,st
->i
-i
);
549 Message(M_WARNING
,"log_from_fd: %s\n",strerror(errno
));
555 void log_from_fd(int fd
, cstring_t prefix
, struct log_if
*log
)
559 st
=safe_malloc(sizeof(*st
),"log_from_fd");
563 st
->buffer
=safe_malloc(FDLOG_BUFSIZE
,"log_from_fd");
567 register_for_poll(st
,log_from_fd_beforepoll
,log_from_fd_afterpoll
,1,
571 void log_module(dict_t
*dict
)
573 add_closure(dict
,"logfile",logfile_apply
);
574 add_closure(dict
,"syslog",syslog_apply
);