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
)
19 static void vMessageFallback(uint32_t class, const char *message
, va_list args
)
22 /* Messages go to stdout/stderr */
23 if (class & message_level
) {
24 if (class&M_FATAL
|| class&M_ERR
|| class&M_WARNING
) {
27 vfprintf(dest
,message
,args
);
31 static void vMessage(uint32_t class, const char *message
, va_list args
)
33 #define MESSAGE_BUFLEN 1023
34 static char buff
[MESSAGE_BUFLEN
+1]={0,};
39 /* Messages go to the system log interface */
41 assert(bp
< MESSAGE_BUFLEN
);
42 vsnprintf(buff
+bp
,MESSAGE_BUFLEN
-bp
,message
,args
);
43 buff
[sizeof(buff
)-2] = '\n';
44 buff
[sizeof(buff
)-1] = '\0';
45 /* Each line is sent separately */
46 while ((nlp
=strchr(buff
,'\n'))) {
48 slilog(system_log
,class,"%s",buff
);
49 memmove(buff
,nlp
+1,strlen(nlp
+1)+1);
52 vMessageFallback(class,message
,args
);
56 void Message(uint32_t class, const char *message
, ...)
61 vMessage(class,message
,ap
);
65 static void MessageFallback(uint32_t class, const char *message
, ...)
67 static void MessageFallback(uint32_t class, const char *message
, ...)
72 vMessageFallback(class,message
,ap
);
76 static NORETURN(vfatal(int status
, bool_t perror
, const char *message
,
79 static void vfatal(int status
, bool_t perror
, const char *message
,
86 enter_phase(PHASE_SHUTDOWN
);
87 Message(M_FATAL
, "secnet fatal error: ");
88 vMessage(M_FATAL
, message
, args
);
90 Message(M_FATAL
, ": %s\n",strerror(err
));
92 Message(M_FATAL
, "\n");
96 void fatal(const char *message
, ...)
99 va_start(args
,message
);
100 vfatal(current_phase
,False
,message
,args
);
104 void fatal_status(int status
, const char *message
, ...)
107 va_start(args
,message
);
108 vfatal(status
,False
,message
,args
);
112 void fatal_perror(const char *message
, ...)
115 va_start(args
,message
);
116 vfatal(current_phase
,True
,message
,args
);
120 void fatal_perror_status(int status
, const char *message
, ...)
123 va_start(args
,message
);
124 vfatal(status
,True
,message
,args
);
128 void vcfgfatal_maybefile(FILE *maybe_f
/* or 0 */, struct cloc loc
,
129 cstring_t facility
, const char *message
, va_list args
)
131 enter_phase(PHASE_SHUTDOWN
);
133 if (maybe_f
&& ferror(maybe_f
)) {
135 Message(M_FATAL
, "error reading config file (%s, %s): %s",
136 facility
, loc
.file
, strerror(errno
));
137 } else if (maybe_f
&& feof(maybe_f
)) {
139 Message(M_FATAL
, "unexpected end of config file (%s, %s)",
141 } else if (loc
.file
&& loc
.line
) {
142 Message(M_FATAL
, "config error (%s, %s:%d): ",facility
,loc
.file
,
144 } else if (!loc
.file
&& loc
.line
) {
145 Message(M_FATAL
, "config error (%s, line %d): ",facility
,loc
.line
);
147 Message(M_FATAL
, "config error (%s): ",facility
);
150 vMessage(M_FATAL
,message
,args
);
154 void cfgfatal_maybefile(FILE *maybe_f
, struct cloc loc
, cstring_t facility
,
155 const char *message
, ...)
159 va_start(args
,message
);
160 vcfgfatal_maybefile(maybe_f
,loc
,facility
,message
,args
);
164 void cfgfatal(struct cloc loc
, cstring_t facility
, const char *message
, ...)
168 va_start(args
,message
);
169 vcfgfatal_maybefile(0,loc
,facility
,message
,args
);
173 void cfgfile_postreadcheck(struct cloc loc
, FILE *f
)
177 Message(M_FATAL
, "error reading config file (%s): %s\n",
178 loc
.file
, strerror(errno
));
180 } else if (feof(f
)) {
181 Message(M_FATAL
, "unexpected end of config file (%s)\n", loc
.file
);
186 /* Take a list of log closures and merge them */
189 struct loglist
*next
;
192 static void log_vmulti(void *sst
, int class, const char *message
, va_list args
)
194 struct loglist
*st
=sst
, *i
;
196 if (secnet_is_daemon
) {
197 for (i
=st
; i
; i
=i
->next
) {
198 vslilog(i
->l
,class,message
,args
);
201 vMessage(class,message
,args
);
206 static void log_multi(void *st
, int priority
, const char *message
, ...)
208 static void log_multi(void *st
, int priority
, const char *message
, ...)
212 va_start(ap
,message
);
213 log_vmulti(st
,priority
,message
,ap
);
217 struct log_if
*init_log(list_t
*ll
)
222 struct loglist
*l
=NULL
, *n
;
225 if (list_length(ll
)==1) {
226 item
=list_elem(ll
,0);
227 cl
=item
->data
.closure
;
228 if (cl
->type
!=CL_LOG
) {
229 cfgfatal(item
->loc
,"init_log","closure is not a logger");
231 return cl
->interface
;
233 while ((item
=list_elem(ll
,i
++))) {
234 if (item
->type
!=t_closure
) {
235 cfgfatal(item
->loc
,"init_log","item is not a closure");
237 cl
=item
->data
.closure
;
238 if (cl
->type
!=CL_LOG
) {
239 cfgfatal(item
->loc
,"init_log","closure is not a logger");
241 n
=safe_malloc(sizeof(*n
),"init_log");
247 fatal("init_log: no log");
249 r
=safe_malloc(sizeof(*r
), "init_log");
252 r
->vlogfn
=log_vmulti
;
265 static cstring_t months
[]={
266 "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
268 static void logfile_vlog(void *sst
, int class, const char *message
,
271 struct logfile
*st
=sst
;
275 if (secnet_is_daemon
&& st
->f
) {
276 if (class&st
->level
) {
279 fprintf(st
->f
,"%s %2d %02d:%02d:%02d ",
280 months
[tm
->tm_mon
],tm
->tm_mday
,tm
->tm_hour
,tm
->tm_min
,
282 vfprintf(st
->f
,message
,args
);
287 vMessageFallback(class,message
,args
);
288 MessageFallback(class,"\n");
292 static void logfile_log(void *state
, int class, const char *message
, ...)
294 static void logfile_log(void *state
, int class, const char *message
, ...)
298 va_start(ap
,message
);
299 logfile_vlog(state
,class,message
,ap
);
303 static void logfile_hup_notify(void *sst
, int signum
)
305 struct logfile
*st
=sst
;
307 f
=fopen(st
->logfile
,"a");
309 logfile_log(st
,M_FATAL
,"received SIGHUP, but could not reopen "
310 "logfile: %s",strerror(errno
));
314 logfile_log(st
,M_INFO
,"received SIGHUP");
318 static void logfile_phase_hook(void *sst
, uint32_t new_phase
)
320 struct logfile
*st
=sst
;
324 f
=fopen(st
->logfile
,"a");
325 if (!f
) fatal_perror("logfile (%s:%d): cannot open \"%s\"",
326 st
->loc
.file
,st
->loc
.line
,st
->logfile
);
328 request_signal_notification(SIGHUP
, logfile_hup_notify
,st
);
332 static struct flagstr message_class_table
[]={
333 { "debug-config", M_DEBUG_CONFIG
},
334 { "debug-phase", M_DEBUG_PHASE
},
335 { "debug", M_DEBUG
},
336 { "all-debug", M_DEBUG
|M_DEBUG_PHASE
|M_DEBUG_CONFIG
},
338 { "notice", M_NOTICE
},
339 { "warning", M_WARNING
},
341 { "security", M_SECURITY
},
342 { "fatal", M_FATAL
},
343 { "default", M_WARNING
|M_ERR
|M_SECURITY
|M_FATAL
},
344 { "verbose", M_INFO
|M_NOTICE
|M_WARNING
|M_ERR
|M_SECURITY
|M_FATAL
},
345 { "quiet", M_FATAL
},
349 static list_t
*logfile_apply(closure_t
*self
, struct cloc loc
, dict_t
*context
,
356 /* We should defer opening the logfile until the getresources
357 phase. We should defer writing into the logfile until after we
360 st
=safe_malloc(sizeof(*st
),"logfile_apply");
361 st
->cl
.description
="logfile";
364 st
->cl
.interface
=&st
->ops
;
366 st
->ops
.logfn
=logfile_log
;
367 st
->ops
.vlogfn
=logfile_vlog
;
371 item
=list_elem(args
,0);
372 if (!item
|| item
->type
!=t_dict
) {
373 cfgfatal(loc
,"logfile","argument must be a dictionary\n");
375 dict
=item
->data
.dict
;
377 st
->logfile
=dict_read_string(dict
,"filename",True
,"logfile",loc
);
378 st
->level
=string_list_to_word(dict_lookup(dict
,"class"),
379 message_class_table
,"logfile");
381 add_hook(PHASE_GETRESOURCES
,logfile_phase_hook
,st
);
383 return new_closure(&st
->cl
);
394 static int msgclass_to_syslogpriority(uint32_t m
)
397 case M_DEBUG_CONFIG
: return LOG_DEBUG
;
398 case M_DEBUG_PHASE
: return LOG_DEBUG
;
399 case M_DEBUG
: return LOG_DEBUG
;
400 case M_INFO
: return LOG_INFO
;
401 case M_NOTICE
: return LOG_NOTICE
;
402 case M_WARNING
: return LOG_WARNING
;
403 case M_ERR
: return LOG_ERR
;
404 case M_SECURITY
: return LOG_CRIT
;
405 case M_FATAL
: return LOG_EMERG
;
406 default: return LOG_NOTICE
;
410 static void syslog_vlog(void *sst
, int class, const char *message
,
413 static void syslog_vlog(void *sst
, int class, const char *message
,
416 struct syslog
*st
=sst
;
419 vsyslog(msgclass_to_syslogpriority(class),message
,args
);
421 vMessageFallback(class,message
,args
);
422 MessageFallback(class,"\n");
426 static void syslog_log(void *sst
, int priority
, const char *message
, ...)
428 static void syslog_log(void *sst
, int priority
, const char *message
, ...)
432 va_start(ap
,message
);
433 syslog_vlog(sst
,priority
,message
,ap
);
437 static struct flagstr syslog_facility_table
[]={
439 { "auth", LOG_AUTH
},
442 { "authpriv", LOG_AUTHPRIV
},
444 { "cron", LOG_CRON
},
445 { "daemon", LOG_DAEMON
},
446 { "kern", LOG_KERN
},
447 { "local0", LOG_LOCAL0
},
448 { "local1", LOG_LOCAL1
},
449 { "local2", LOG_LOCAL2
},
450 { "local3", LOG_LOCAL3
},
451 { "local4", LOG_LOCAL4
},
452 { "local5", LOG_LOCAL5
},
453 { "local6", LOG_LOCAL6
},
454 { "local7", LOG_LOCAL7
},
456 { "mail", LOG_MAIL
},
457 { "news", LOG_NEWS
},
458 { "syslog", LOG_SYSLOG
},
459 { "user", LOG_USER
},
460 { "uucp", LOG_UUCP
},
464 static void syslog_phase_hook(void *sst
, uint32_t newphase
)
466 struct syslog
*st
=sst
;
469 openlog(st
->ident
,0,st
->facility
);
474 static list_t
*syslog_apply(closure_t
*self
, struct cloc loc
, dict_t
*context
,
482 st
=safe_malloc(sizeof(*st
),"syslog_apply");
483 st
->cl
.description
="syslog";
486 st
->cl
.interface
=&st
->ops
;
488 st
->ops
.logfn
=syslog_log
;
489 st
->ops
.vlogfn
=syslog_vlog
;
491 item
=list_elem(args
,0);
492 if (!item
|| item
->type
!=t_dict
)
493 cfgfatal(loc
,"syslog","parameter must be a dictionary\n");
496 st
->ident
=dict_read_string(d
, "ident", False
, "syslog", loc
);
497 facstr
=dict_read_string(d
, "facility", True
, "syslog", loc
);
498 st
->facility
=string_to_word(facstr
,loc
,
499 syslog_facility_table
,"syslog");
501 add_hook(PHASE_GETRESOURCES
,syslog_phase_hook
,st
);
503 return new_closure(&st
->cl
);
506 /* Read from a fd and output to a log. This is a quick hack to
507 support logging stderr, and needs code adding to tidy up before it
508 can be used for anything else. */
509 #define FDLOG_BUFSIZE 1024
519 static int log_from_fd_beforepoll(void *sst
, struct pollfd
*fds
, int *nfds_io
,
522 struct fdlog
*st
=sst
;
526 fds
[0].events
=POLLIN
;
531 static void log_from_fd_afterpoll(void *sst
, struct pollfd
*fds
, int nfds
)
533 struct fdlog
*st
=sst
;
537 if (fds
[0].revents
&POLLERR
) {
540 if (fds
[0].revents
&POLLIN
) {
541 remain
=FDLOG_BUFSIZE
-st
->i
-1;
543 st
->buffer
[FDLOG_BUFSIZE
-1]=0;
544 slilog(st
->log
,M_WARNING
,"%s: overlong line: %s",
545 st
->prefix
,st
->buffer
);
547 remain
=FDLOG_BUFSIZE
-1;
549 r
=read(st
->fd
,st
->buffer
+st
->i
,remain
);
552 for (i
=0; i
<st
->i
; i
++) {
553 if (st
->buffer
[i
]=='\n') {
555 slilog(st
->log
,M_INFO
,"%s: %s",
556 st
->prefix
,st
->buffer
);
558 memmove(st
->buffer
,st
->buffer
+i
,st
->i
-i
);
564 Message(M_WARNING
,"log_from_fd: %s\n",strerror(errno
));
570 void log_from_fd(int fd
, cstring_t prefix
, struct log_if
*log
)
574 st
=safe_malloc(sizeof(*st
),"log_from_fd");
578 st
->buffer
=safe_malloc(FDLOG_BUFSIZE
,"log_from_fd");
582 register_for_poll(st
,log_from_fd_beforepoll
,log_from_fd_afterpoll
,1,
586 void log_module(dict_t
*dict
)
588 add_closure(dict
,"logfile",logfile_apply
);
589 add_closure(dict
,"syslog",syslog_apply
);