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
)
35 /* Messages go to the system log interface */
36 vslilog_part(system_log
, class, message
, args
);
38 vMessageFallback(class,message
,args
);
42 void Message(uint32_t class, const char *message
, ...)
47 vMessage(class,message
,ap
);
51 static void MessageFallback(uint32_t class, const char *message
, ...)
53 static void MessageFallback(uint32_t class, const char *message
, ...)
58 vMessageFallback(class,message
,ap
);
62 static NORETURN(vfatal(int status
, bool_t perror
, const char *message
,
65 static void vfatal(int status
, bool_t perror
, const char *message
,
72 enter_phase(PHASE_SHUTDOWN
);
73 Message(M_FATAL
, "secnet fatal error: ");
74 vMessage(M_FATAL
, message
, args
);
76 Message(M_FATAL
, ": %s\n",strerror(err
));
78 Message(M_FATAL
, "\n");
82 void fatal(const char *message
, ...)
85 va_start(args
,message
);
86 vfatal(current_phase
,False
,message
,args
);
90 void fatal_status(int status
, const char *message
, ...)
93 va_start(args
,message
);
94 vfatal(status
,False
,message
,args
);
98 void fatal_perror(const char *message
, ...)
101 va_start(args
,message
);
102 vfatal(current_phase
,True
,message
,args
);
106 void fatal_perror_status(int status
, const char *message
, ...)
109 va_start(args
,message
);
110 vfatal(status
,True
,message
,args
);
114 void vcfgfatal_maybefile(FILE *maybe_f
/* or 0 */, struct cloc loc
,
115 cstring_t facility
, const char *message
, va_list args
)
117 enter_phase(PHASE_SHUTDOWN
);
119 if (maybe_f
&& ferror(maybe_f
)) {
121 Message(M_FATAL
, "error reading config file (%s, %s): %s",
122 facility
, loc
.file
, strerror(errno
));
123 } else if (maybe_f
&& feof(maybe_f
)) {
125 Message(M_FATAL
, "unexpected end of config file (%s, %s)",
127 } else if (loc
.file
&& loc
.line
) {
128 Message(M_FATAL
, "config error (%s, %s:%d): ",facility
,loc
.file
,
130 } else if (!loc
.file
&& loc
.line
) {
131 Message(M_FATAL
, "config error (%s, line %d): ",facility
,loc
.line
);
133 Message(M_FATAL
, "config error (%s): ",facility
);
136 vMessage(M_FATAL
,message
,args
);
140 void cfgfatal_maybefile(FILE *maybe_f
, struct cloc loc
, cstring_t facility
,
141 const char *message
, ...)
145 va_start(args
,message
);
146 vcfgfatal_maybefile(maybe_f
,loc
,facility
,message
,args
);
150 void cfgfatal(struct cloc loc
, cstring_t facility
, const char *message
, ...)
154 va_start(args
,message
);
155 vcfgfatal_maybefile(0,loc
,facility
,message
,args
);
159 void cfgfile_postreadcheck(struct cloc loc
, FILE *f
)
163 Message(M_FATAL
, "error reading config file (%s): %s\n",
164 loc
.file
, strerror(errno
));
166 } else if (feof(f
)) {
167 Message(M_FATAL
, "unexpected end of config file (%s)\n", loc
.file
);
172 /* Take a list of log closures and merge them */
175 struct loglist
*next
;
178 static void log_vmulti(void *sst
, int class, const char *message
, va_list args
)
180 struct loglist
*st
=sst
, *i
;
182 if (secnet_is_daemon
) {
183 for (i
=st
; i
; i
=i
->next
) {
184 vslilog(i
->l
,class,message
,args
);
187 vMessage(class,message
,args
);
192 void lg_vperror(struct log_if
*lg
, const char *desc
, struct cloc
*loc
,
193 int class, int errnoval
, const char *fmt
, va_list al
)
195 int status
=current_phase
;
202 enter_phase(PHASE_SHUTDOWN
);
204 slilog_part(lg
,class,"%s",desc
);
206 slilog_part(lg
,class," (%s:%d)",loc
->file
,loc
->line
);
207 slilog_part(lg
,class,": ");
208 vslilog_part(lg
,class,fmt
,al
);
210 slilog_part(lg
,class,": %s",strerror(errnoval
));
211 slilog_part(lg
,class,"\n");
219 void lg_perror(struct log_if
*lg
, const char *desc
, struct cloc
*loc
,
220 int class, int errnoval
, const char *fmt
, ...)
224 lg_vperror(lg
,desc
,loc
,class,errnoval
,fmt
,al
);
228 void lg_exitstatus(struct log_if
*lg
, const char *desc
, struct cloc
*loc
,
229 int class, int status
, const char *progname
)
232 lg_perror(lg
,desc
,loc
,class,0,"%s exited",progname
);
233 else if (WIFEXITED(status
))
234 lg_perror(lg
,desc
,loc
,class,0,"%s exited with error exit status %d",
235 progname
,WEXITSTATUS(status
));
236 else if (WIFSIGNALED(status
))
237 lg_perror(lg
,desc
,loc
,class,0,"%s died due to fatal signal %s (%d)%s",
238 progname
,strsignal(WTERMSIG(status
)),WTERMSIG(status
),
239 WCOREDUMP(status
)?
" (core dumped)":"");
241 lg_perror(lg
,desc
,loc
,class,0,"%s died with unknown wait status %d",
245 struct log_if
*init_log(list_t
*ll
)
250 struct loglist
*l
=NULL
, *n
;
253 if (list_length(ll
)==1) {
254 item
=list_elem(ll
,0);
255 cl
=item
->data
.closure
;
256 if (cl
->type
!=CL_LOG
) {
257 cfgfatal(item
->loc
,"init_log","closure is not a logger");
259 return cl
->interface
;
261 while ((item
=list_elem(ll
,i
++))) {
262 if (item
->type
!=t_closure
) {
263 cfgfatal(item
->loc
,"init_log","item is not a closure");
265 cl
=item
->data
.closure
;
266 if (cl
->type
!=CL_LOG
) {
267 cfgfatal(item
->loc
,"init_log","closure is not a logger");
269 n
=safe_malloc(sizeof(*n
),"init_log");
275 fatal("init_log: no log");
277 r
=safe_malloc(sizeof(*r
), "init_log");
279 r
->vlogfn
=log_vmulti
;
293 static cstring_t months
[]={
294 "Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
296 static void logfile_vlog(void *sst
, int class, const char *message
,
299 struct logfile
*st
=sst
;
303 if (secnet_is_daemon
&& st
->f
) {
304 if (class&st
->level
) {
307 fprintf(st
->f
,"%s %2d %02d:%02d:%02d ",
308 months
[tm
->tm_mon
],tm
->tm_mday
,tm
->tm_hour
,tm
->tm_min
,
310 vfprintf(st
->f
,message
,args
);
315 vMessageFallback(class,message
,args
);
316 MessageFallback(class,"\n");
320 static void logfile_log(void *state
, int class, const char *message
, ...)
322 static void logfile_log(void *state
, int class, const char *message
, ...)
326 va_start(ap
,message
);
327 logfile_vlog(state
,class,message
,ap
);
331 static void logfile_hup_notify(void *sst
, int signum
)
333 struct logfile
*st
=sst
;
335 f
=fopen(st
->logfile
,"a");
337 logfile_log(st
,M_FATAL
,"received SIGHUP, but could not reopen "
338 "logfile: %s",strerror(errno
));
342 logfile_log(st
,M_INFO
,"received SIGHUP");
346 static void logfile_phase_hook(void *sst
, uint32_t new_phase
)
348 struct logfile
*st
=sst
;
352 f
=fopen(st
->logfile
,"a");
353 if (!f
) fatal_perror("logfile (%s:%d): cannot open \"%s\"",
354 st
->loc
.file
,st
->loc
.line
,st
->logfile
);
356 request_signal_notification(SIGHUP
, logfile_hup_notify
,st
);
360 static struct flagstr message_class_table
[]={
361 { "debug-config", M_DEBUG_CONFIG
},
362 { "debug-phase", M_DEBUG_PHASE
},
363 { "debug", M_DEBUG
},
364 { "all-debug", M_DEBUG
|M_DEBUG_PHASE
|M_DEBUG_CONFIG
},
366 { "notice", M_NOTICE
},
367 { "warning", M_WARNING
},
369 { "security", M_SECURITY
},
370 { "fatal", M_FATAL
},
371 { "default", M_WARNING
|M_ERR
|M_SECURITY
|M_FATAL
},
372 { "verbose", M_INFO
|M_NOTICE
|M_WARNING
|M_ERR
|M_SECURITY
|M_FATAL
},
373 { "quiet", M_FATAL
},
377 static list_t
*logfile_apply(closure_t
*self
, struct cloc loc
, dict_t
*context
,
384 /* We should defer opening the logfile until the getresources
385 phase. We should defer writing into the logfile until after we
388 st
=safe_malloc(sizeof(*st
),"logfile_apply");
389 st
->cl
.description
="logfile";
392 st
->cl
.interface
=&st
->ops
;
394 st
->ops
.vlogfn
=logfile_vlog
;
399 item
=list_elem(args
,0);
400 if (!item
|| item
->type
!=t_dict
) {
401 cfgfatal(loc
,"logfile","argument must be a dictionary\n");
403 dict
=item
->data
.dict
;
405 st
->logfile
=dict_read_string(dict
,"filename",True
,"logfile",loc
);
406 st
->level
=string_list_to_word(dict_lookup(dict
,"class"),
407 message_class_table
,"logfile");
409 add_hook(PHASE_GETRESOURCES
,logfile_phase_hook
,st
);
411 return new_closure(&st
->cl
);
422 static int msgclass_to_syslogpriority(uint32_t m
)
425 case M_DEBUG_CONFIG
: return LOG_DEBUG
;
426 case M_DEBUG_PHASE
: return LOG_DEBUG
;
427 case M_DEBUG
: return LOG_DEBUG
;
428 case M_INFO
: return LOG_INFO
;
429 case M_NOTICE
: return LOG_NOTICE
;
430 case M_WARNING
: return LOG_WARNING
;
431 case M_ERR
: return LOG_ERR
;
432 case M_SECURITY
: return LOG_CRIT
;
433 case M_FATAL
: return LOG_EMERG
;
434 default: return LOG_NOTICE
;
438 static void syslog_vlog(void *sst
, int class, const char *message
,
441 static void syslog_vlog(void *sst
, int class, const char *message
,
444 struct syslog
*st
=sst
;
447 vsyslog(msgclass_to_syslogpriority(class),message
,args
);
449 vMessageFallback(class,message
,args
);
450 MessageFallback(class,"\n");
454 static struct flagstr syslog_facility_table
[]={
456 { "auth", LOG_AUTH
},
459 { "authpriv", LOG_AUTHPRIV
},
461 { "cron", LOG_CRON
},
462 { "daemon", LOG_DAEMON
},
463 { "kern", LOG_KERN
},
464 { "local0", LOG_LOCAL0
},
465 { "local1", LOG_LOCAL1
},
466 { "local2", LOG_LOCAL2
},
467 { "local3", LOG_LOCAL3
},
468 { "local4", LOG_LOCAL4
},
469 { "local5", LOG_LOCAL5
},
470 { "local6", LOG_LOCAL6
},
471 { "local7", LOG_LOCAL7
},
473 { "mail", LOG_MAIL
},
474 { "news", LOG_NEWS
},
475 { "syslog", LOG_SYSLOG
},
476 { "user", LOG_USER
},
477 { "uucp", LOG_UUCP
},
481 static void syslog_phase_hook(void *sst
, uint32_t newphase
)
483 struct syslog
*st
=sst
;
486 openlog(st
->ident
,0,st
->facility
);
491 static list_t
*syslog_apply(closure_t
*self
, struct cloc loc
, dict_t
*context
,
499 st
=safe_malloc(sizeof(*st
),"syslog_apply");
500 st
->cl
.description
="syslog";
503 st
->cl
.interface
=&st
->ops
;
505 st
->ops
.vlogfn
=syslog_vlog
;
508 item
=list_elem(args
,0);
509 if (!item
|| item
->type
!=t_dict
)
510 cfgfatal(loc
,"syslog","parameter must be a dictionary\n");
513 st
->ident
=dict_read_string(d
, "ident", False
, "syslog", loc
);
514 facstr
=dict_read_string(d
, "facility", True
, "syslog", loc
);
515 st
->facility
=string_to_word(facstr
,loc
,
516 syslog_facility_table
,"syslog");
518 add_hook(PHASE_GETRESOURCES
,syslog_phase_hook
,st
);
520 return new_closure(&st
->cl
);
523 /* Read from a fd and output to a log. This is a quick hack to
524 support logging stderr, and needs code adding to tidy up before it
525 can be used for anything else. */
526 #define FDLOG_BUFSIZE 1024
536 static int log_from_fd_beforepoll(void *sst
, struct pollfd
*fds
, int *nfds_io
,
539 struct fdlog
*st
=sst
;
541 BEFOREPOLL_WANT_FDS(1);
543 fds
[0].events
=POLLIN
;
545 BEFOREPOLL_WANT_FDS(0);
550 static void log_from_fd_afterpoll(void *sst
, struct pollfd
*fds
, int nfds
)
552 struct fdlog
*st
=sst
;
556 if (fds
[0].revents
&POLLERR
) {
559 if (fds
[0].revents
&POLLIN
) {
560 remain
=FDLOG_BUFSIZE
-st
->i
-1;
562 st
->buffer
[FDLOG_BUFSIZE
-1]=0;
563 slilog(st
->log
,M_WARNING
,"%s: overlong line: %s",
564 st
->prefix
,st
->buffer
);
566 remain
=FDLOG_BUFSIZE
-1;
568 r
=read(st
->fd
,st
->buffer
+st
->i
,remain
);
571 for (i
=0; i
<st
->i
; i
++) {
572 if (st
->buffer
[i
]=='\n') {
574 slilog(st
->log
,M_INFO
,"%s: %s",
575 st
->prefix
,st
->buffer
);
577 memmove(st
->buffer
,st
->buffer
+i
,st
->i
-i
);
582 } else if (errno
==EINTR
|| iswouldblock(errno
)) {
584 Message(M_WARNING
,"log_from_fd: %s\n",strerror(errno
));
590 void log_from_fd(int fd
, cstring_t prefix
, struct log_if
*log
)
594 st
=safe_malloc(sizeof(*st
),"log_from_fd");
598 st
->buffer
=safe_malloc(FDLOG_BUFSIZE
,"log_from_fd");
604 register_for_poll(st
,log_from_fd_beforepoll
,log_from_fd_afterpoll
,
608 void log_module(dict_t
*dict
)
610 add_closure(dict
,"logfile",logfile_apply
);
611 add_closure(dict
,"syslog",syslog_apply
);