xref: /illumos-gate/usr/src/cmd/fm/modules/common/syslog-msgs/syslog.c (revision 7a088f03b431bdffa96c3b2175964d4d38420caa)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <sys/fm/protocol.h>
27 #include <sys/strlog.h>
28 #include <sys/log.h>
29 #include <fm/fmd_api.h>
30 #include <fm/fmd_msg.h>
31 
32 #include <stropts.h>
33 #include <syslog.h>
34 #include <locale.h>
35 #include <strings.h>
36 #include <stdlib.h>
37 #include <unistd.h>
38 #include <limits.h>
39 #include <alloca.h>
40 #include <errno.h>
41 #include <fcntl.h>
42 #include <time.h>
43 
44 /*
45  * SYSLOG_DOMAIN and SYSLOG_TEMPLATE define the dgettext() parameters the agent
46  * can use to retrieve the localized format string for diagnosis messages.
47  * The format string retrieved from SYSLOG_DOMAIN is the default format
48  * string, but when processing each suspect list, dgettext() is also called
49  * for the domain that matches the diagcode dictname and if SYSLOG_TEMPLATE
50  * is defined, it overrides the default for that suspect list only.
51  *
52  * Similarly, SYSLOG_URL is also checked to see if syslog_url
53  * should be overridden for each suspect list.
54  *
55  * The net effect of all this is that for a given diagcode DICT-1234-56:
56  *
57  *	- If DICT.mo defines syslog-msgs-message-template, it is used
58  *	  as the format string for the diagnosis message.
59  *
60  *	- Otherwise, syslog-msgs-message-template from FMD.mo is used.
61  *
62  *	- If DICT.mo defines syslog-url, it is used when filling
63  *	  in the %s in the "description" message.
64  *
65  *	- Otherwise, if syslog-msgs.conf defines a "url" property, that
66  *	  value is used.
67  *
68  *	- Otherwise, the default "http://sun.com/msg/" is used (via the
69  *	  fmd_props[] table defined in this file).
70  */
71 static const char SYSLOG_DOMAIN[] = "FMD";
72 static const char SYSLOG_TEMPLATE[] = "syslog-msgs-message-template";
73 static const char SYSLOG_URL[] = "syslog-url";
74 static const char SYSLOG_POINTER[] = "syslog-msgs-pointer";
75 
76 static struct stats {
77 	fmd_stat_t bad_vers;
78 	fmd_stat_t bad_fmri;
79 	fmd_stat_t bad_code;
80 	fmd_stat_t bad_time;
81 	fmd_stat_t log_err;
82 	fmd_stat_t msg_err;
83 	fmd_stat_t no_msg;
84 } syslog_stats = {
85 	{ "bad_vers", FMD_TYPE_UINT64, "event version is missing or invalid" },
86 	{ "bad_fmri", FMD_TYPE_UINT64, "event fmri is missing or invalid" },
87 	{ "bad_code", FMD_TYPE_UINT64, "event code has no dictionary name" },
88 	{ "bad_time", FMD_TYPE_UINT64, "event time is not properly encoded" },
89 	{ "log_err", FMD_TYPE_UINT64, "failed to log message to log(7D)" },
90 	{ "msg_err", FMD_TYPE_UINT64, "failed to log message to sysmsg(7D)" },
91 	{ "no_msg", FMD_TYPE_UINT64, "message logging suppressed" }
92 };
93 
94 static const struct facility {
95 	const char *fac_name;
96 	int fac_value;
97 } syslog_facs[] = {
98 	{ "LOG_DAEMON", LOG_DAEMON },
99 	{ "LOG_LOCAL0", LOG_LOCAL0 },
100 	{ "LOG_LOCAL1", LOG_LOCAL1 },
101 	{ "LOG_LOCAL2", LOG_LOCAL2 },
102 	{ "LOG_LOCAL3", LOG_LOCAL3 },
103 	{ "LOG_LOCAL4", LOG_LOCAL4 },
104 	{ "LOG_LOCAL5", LOG_LOCAL5 },
105 	{ "LOG_LOCAL6", LOG_LOCAL6 },
106 	{ "LOG_LOCAL7", LOG_LOCAL7 },
107 	{ NULL, 0 }
108 };
109 
110 static char *syslog_locdir;	/* l10n messages directory (if alternate) */
111 static char *syslog_url;	/* current value of "url" property */
112 static char *syslog_pointer;	/* info to point user to the full message */
113 static int syslog_msgall;	/* set to message all faults */
114 static log_ctl_t syslog_ctl;	/* log(7D) meta-data for each msg */
115 static int syslog_logfd = -1;	/* log(7D) file descriptor */
116 static int syslog_msgfd = -1;	/* sysmsg(7D) file descriptor */
117 static int syslog_file;		/* log to syslog_logfd */
118 static int syslog_cons;		/* log to syslog_msgfd */
119 
120 /*
121  * Ideally we would just use syslog(3C) for outputting our messages, but our
122  * messaging standard defines a nice multi-line format and syslogd(1M) is very
123  * inflexible and stupid when it comes to multi-line messages.  It pulls data
124  * out of log(7D) and splits it up by \n, printing each line to the console
125  * with its usual prefix of date and sender; it uses the same behavior for the
126  * messages file as well.  Further, syslog(3C) provides no CE_CONT equivalent
127  * for userland callers (which at least works around repeated file prefixing).
128  * So with a multi-line message format, your file and console end up like this:
129  *
130  * Dec 02 18:08:40 hostname this is my nicely formatted
131  * Dec 02 18:08:40 hostname message designed for 80 cols
132  * ...
133  *
134  * To resolve these issues, we use our own syslog_emit() wrapper to emit
135  * messages and some knowledge of how the Solaris log drivers work.  We first
136  * construct an enlarged format string containing the appropriate msgid(1).
137  * We then format the caller's message using the provided format and buffer.
138  * We send this message to log(7D) using putmsg() with SL_CONSOLE | SL_LOGONLY
139  * set in the log_ctl_t.  The log driver allows us to set SL_LOGONLY when we
140  * construct messages ourself, indicating that syslogd should only emit the
141  * message to /var/adm/messages and any remote hosts, and skip the console.
142  * Note: the log driver packet size limit for output via putmsg is LOGMAX_PS.
143  * Then we emit the message a second time, without the special prefix, to the
144  * sysmsg(7D) device, which handles console redirection and also permits us
145  * to output any characters we like to the console, including \n and \r.
146  */
147 /*PRINTFLIKE2*/
148 static void
149 syslog_emit(fmd_hdl_t *hdl, const char *msgformat, ...)
150 {
151 	struct strbuf ctl, dat;
152 	uint32_t msgid;
153 
154 	char *format, *p, c;
155 	char *buf = NULL;
156 	size_t formatlen, logmsglen;
157 	int len, plen;
158 	va_list ap;
159 
160 	formatlen = strlen(msgformat) + 64; /* +64 for prefix and \0 */
161 	format = alloca(formatlen);
162 
163 	STRLOG_MAKE_MSGID(msgformat, msgid);
164 	(void) snprintf(format, formatlen,
165 	    "fmd: [ID %u FACILITY_AND_PRIORITY] %s", msgid, msgformat);
166 
167 	/*
168 	 * Figure out the length of the message then allocate a buffer
169 	 * of adequate size.
170 	 */
171 	va_start(ap, msgformat);
172 	if ((len = vsnprintf(&c, 1, format, ap)) >= 0 &&
173 	    (buf = fmd_hdl_alloc(hdl, len + 1, FMD_SLEEP)) != NULL)
174 		(void) vsnprintf(buf, len + 1, format, ap);
175 	va_end(ap);
176 
177 	if (buf == NULL)
178 		return;
179 
180 	ctl.buf = (void *)&syslog_ctl;
181 	ctl.len = sizeof (syslog_ctl);
182 
183 	dat.buf = buf;
184 	logmsglen = strlen(buf) + 1;
185 
186 	/*
187 	 * The underlying log driver won't accept (ERANGE) messages
188 	 * longer than LOG_MAXPS bytes.  The long message will be truncated
189 	 * and appended with a pointer to the full message.
190 	 */
191 	if (logmsglen <= LOG_MAXPS) {
192 		dat.len = logmsglen;
193 	} else {
194 		plen = strlen(syslog_pointer) + 1;
195 		buf[LOG_MAXPS - plen] = '\0';
196 		/*
197 		 * If possible, the pointer is appended after a newline
198 		 */
199 		if ((p = strrchr(buf, '\n')) == NULL)
200 			p = &buf[LOG_MAXPS - plen];
201 
202 		(void) strcpy(p, syslog_pointer);
203 		dat.len = strlen(buf) + 1;
204 	}
205 
206 	if (syslog_file && putmsg(syslog_logfd, &ctl, &dat, 0) != 0) {
207 		fmd_hdl_debug(hdl, "putmsg failed: %s\n", strerror(errno));
208 		syslog_stats.log_err.fmds_value.ui64++;
209 	}
210 
211 	dat.buf = strchr(buf, ']');
212 	dat.len = (size_t)(logmsglen - (dat.buf - buf));
213 
214 	dat.buf[0] = '\r'; /* overwrite ']' with carriage return */
215 	dat.buf[1] = '\n'; /* overwrite ' ' with newline */
216 
217 	if (syslog_cons && write(syslog_msgfd, dat.buf, dat.len) != dat.len) {
218 		fmd_hdl_debug(hdl, "write failed: %s\n", strerror(errno));
219 		syslog_stats.msg_err.fmds_value.ui64++;
220 	}
221 
222 	fmd_hdl_free(hdl, buf, len + 1);
223 }
224 
225 /*ARGSUSED*/
226 static void
227 syslog_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl, const char *class)
228 {
229 	char *uuid, *code, *dict, *url, *urlcode, *template, *p;
230 	char *src_name, *src_vers, *platform, *chassis, *server;
231 	char *typ, *sev, *fmt, *trfmt, *rsp, *imp, *act, *locdir;
232 	char desc[1024], date[64];
233 	boolean_t domsg;
234 
235 	nvlist_t *fmri, *auth;
236 	uint8_t version;
237 	struct tm tm, *tmp;
238 	int64_t *tv;
239 	time_t sec;
240 	uint_t tn = 0;
241 	char *olang = NULL;
242 	int locale_c = 0;
243 	size_t len;
244 
245 	/*
246 	 * don't log updated and isolated events (for now)
247 	 */
248 	if (strcmp(class, FM_LIST_ISOLATED_CLASS) == 0 ||
249 	    strcmp(class, FM_LIST_UPDATED_CLASS) == 0)
250 		return;
251 
252 	if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 ||
253 	    version > FM_SUSPECT_VERSION) {
254 		fmd_hdl_debug(hdl, "invalid event version: %u\n", version);
255 		syslog_stats.bad_vers.fmds_value.ui64++;
256 		return; /* invalid event version */
257 	}
258 
259 	if (!syslog_msgall && nvlist_lookup_boolean_value(nvl,
260 	    FM_SUSPECT_MESSAGE, &domsg) == 0 && !domsg) {
261 		fmd_hdl_debug(hdl, "%s requested no message\n", class);
262 		syslog_stats.no_msg.fmds_value.ui64++;
263 		return; /* event is not to be messaged */
264 	}
265 
266 	/*
267 	 * Extract the DE element, which is an FMRI for the diagnosis engine
268 	 * that made this event, and validate its meta-data before continuing.
269 	 */
270 	if (nvlist_lookup_nvlist(nvl, FM_SUSPECT_DE, &fmri) != 0 ||
271 	    nvlist_lookup_string(fmri, FM_FMRI_SCHEME, &p) != 0 ||
272 	    strcmp(p, FM_FMRI_SCHEME_FMD) != 0 ||
273 	    nvlist_lookup_uint8(fmri, FM_VERSION, &version) != 0 ||
274 	    version > FM_FMD_SCHEME_VERSION ||
275 	    nvlist_lookup_nvlist(fmri, FM_FMRI_AUTHORITY, &auth) != 0 ||
276 	    nvlist_lookup_uint8(auth, FM_VERSION, &version) != 0 ||
277 	    version > FM_FMRI_AUTH_VERSION) {
278 		syslog_stats.bad_fmri.fmds_value.ui64++;
279 		return; /* invalid de fmri */
280 	}
281 
282 	/*
283 	 * Extract the relevant identifying elements of the FMRI and authority.
284 	 * Note: for now, we ignore FM_FMRI_AUTH_DOMAIN (only for SPs).
285 	 */
286 	(void) nvlist_lookup_string(fmri, FM_FMRI_FMD_NAME, &src_name);
287 	(void) nvlist_lookup_string(fmri, FM_FMRI_FMD_VERSION, &src_vers);
288 	(void) nvlist_lookup_string(auth, FM_FMRI_AUTH_PRODUCT, &platform);
289 	(void) nvlist_lookup_string(auth, FM_FMRI_AUTH_SERVER, &server);
290 
291 	if (nvlist_lookup_string(auth, FM_FMRI_AUTH_CHASSIS, &chassis) != 0)
292 		chassis = "-"; /* chassis serial number may not be present */
293 
294 	/*
295 	 * Extract the uuid and diagcode dictionary from the event code.  The
296 	 * dictionary name is the text preceding the first "-" in the code.
297 	 */
298 	(void) nvlist_lookup_string(nvl, FM_SUSPECT_UUID, &uuid);
299 	(void) nvlist_lookup_string(nvl, FM_SUSPECT_DIAG_CODE, &code);
300 
301 	if ((p = strchr(code, '-')) == NULL || p == code) {
302 		fmd_hdl_debug(hdl, "invalid diagnosis code: %s\n", code);
303 		syslog_stats.bad_code.fmds_value.ui64++;
304 		return; /* invalid diagnosis code */
305 	}
306 
307 	dict = alloca((size_t)(p - code) + 1);
308 	(void) strncpy(dict, code, (size_t)(p - code));
309 	dict[(size_t)(p - code)] = '\0';
310 
311 	/*
312 	 * Alloca a hunk of memory and use it to create the msgid strings
313 	 * <code>.type, <code>.severity, <code>.description, and so forth.
314 	 * These form the msgids we will use to look up the localized text.
315 	 * Since we've allocated things to be of the right size, we know
316 	 * than snprintf() can't overflow: INT_MAX is used shut lint up and
317 	 * avoid code to needlessly recompute the remaining buffer space.
318 	 */
319 	typ = alloca(6 * (strlen(code) + 16));
320 	sev = typ + snprintf(typ, INT_MAX, "%s.type", code) + 1;
321 	fmt = sev + snprintf(sev, INT_MAX, "%s.severity", code) + 1;
322 	rsp = fmt + snprintf(fmt, INT_MAX, "%s.description", code) + 1;
323 	imp = rsp + snprintf(rsp, INT_MAX, "%s.response", code) + 1;
324 	act = imp + snprintf(imp, INT_MAX, "%s.impact", code) + 1;
325 	(void) snprintf(act, INT_MAX, "%s.action", code);
326 
327 	fmd_msg_lock();
328 
329 	if (syslog_locdir != NULL)
330 		locdir =  bindtextdomain(dict, syslog_locdir);
331 
332 	if ((trfmt = dgettext(dict, fmt)) == fmt) {
333 		/*
334 		 * We didn't find a translation in the dictionary for the
335 		 * current language.  The string we passed to gettext is merely
336 		 * an index - it isn't sufficient, on its own, to be used as the
337 		 * message.  Fall back to C and try again.
338 		 */
339 		olang = setlocale(LC_MESSAGES, NULL);
340 		if (olang) {
341 			p = alloca(strlen(olang) + 1);
342 			olang = strcpy(p, olang);
343 		}
344 		locale_c = 1;
345 		(void) setlocale(LC_MESSAGES, "C");
346 		trfmt = dgettext(dict, fmt);
347 	}
348 
349 	if ((url = dgettext(dict, SYSLOG_URL)) == SYSLOG_URL)
350 		url = syslog_url;
351 
352 	/*
353 	 * If the URL ends with a slash, that indicates the code should be
354 	 * appended to it.  After formatting the URL, reformat the DESC
355 	 * text using the URL as an snprintf argument.
356 	 */
357 	len = strlen(url);
358 	if (url[len - 1] == '/') {
359 		urlcode = alloca(len + strlen(code) + 1);
360 		(void) snprintf(urlcode, INT_MAX, "%s%s", url, code);
361 	} else {
362 		urlcode = url;
363 	}
364 	/* LINTED - variable format specifier to snprintf() */
365 	(void) snprintf(desc, sizeof (desc), trfmt, urlcode);
366 
367 	/*
368 	 * Extract the diagnosis time and format it using the locale's default.
369 	 * strftime() will use GMT or local time based on our "gmt" setting.
370 	 */
371 	if (nvlist_lookup_int64_array(nvl, FM_SUSPECT_DIAG_TIME,
372 	    &tv, &tn) == 0 && tn == 2 && (sec = (time_t)tv[0]) != (time_t)-1 &&
373 	    (tmp = localtime_r(&sec, &tm)) != NULL)
374 		(void) strftime(date, sizeof (date), "%C", tmp);
375 	else {
376 		syslog_stats.bad_time.fmds_value.ui64++;
377 		(void) strcpy(date, "-");
378 	}
379 
380 	/*
381 	 * Create and log the final string by filling in the template with the
382 	 * strings we've created and the strings from the message dictionary.
383 	 * If a template is provided for this dictionary, use it, otherwise
384 	 * fall back to the default template.
385 	 */
386 	if ((template = dgettext(dict, SYSLOG_TEMPLATE)) == SYSLOG_TEMPLATE)
387 		template = dgettext(SYSLOG_DOMAIN, SYSLOG_TEMPLATE);
388 	/*
389 	 * Do samely for the message pointer.  If the message is too long
390 	 * to be handled by the underlying log drvier, the message will be
391 	 * truncated and the pointer will be added to point user to the
392 	 * full message.
393 	 */
394 	if ((syslog_pointer = dgettext(dict, SYSLOG_POINTER)) == SYSLOG_POINTER)
395 		syslog_pointer = dgettext(SYSLOG_DOMAIN, SYSLOG_POINTER);
396 
397 	syslog_ctl.pri &= LOG_FACMASK;
398 	if (strcmp(class, FM_LIST_RESOLVED_CLASS) == 0 ||
399 	    strcmp(class, FM_LIST_REPAIRED_CLASS) == 0)
400 		syslog_ctl.pri |= LOG_NOTICE;
401 	else
402 		syslog_ctl.pri |= LOG_ERR;
403 	syslog_emit(hdl, template, code, dgettext(dict, typ),
404 	    dgettext(dict, sev), date, platform, chassis, server, src_name,
405 	    src_vers, uuid, desc, dgettext(dict, rsp), dgettext(dict, imp),
406 	    dgettext(dict, act));
407 
408 	/*
409 	 * Switch back to our original language if we had to fall back to C.
410 	 */
411 	if (olang != NULL)
412 		(void) setlocale(LC_MESSAGES, olang);
413 
414 	if (syslog_locdir != NULL)
415 		(void) bindtextdomain(dict, locdir);
416 
417 	fmd_msg_unlock();
418 
419 	if (locale_c) {
420 		fmd_hdl_debug(hdl,
421 		    trfmt == fmt ?
422 		    "dgettext(%s, %s) in %s and C failed\n" :
423 		    "dgettext(%s, %s) in %s failed; C used\n",
424 		    dict, fmt, olang ? olang : "<null>");
425 	}
426 }
427 
428 static const fmd_prop_t fmd_props[] = {
429 	{ "console", FMD_TYPE_BOOL, "true" },
430 	{ "facility", FMD_TYPE_STRING, "LOG_DAEMON" },
431 	{ "gmt", FMD_TYPE_BOOL, "false" },
432 	{ "syslogd", FMD_TYPE_BOOL, "true" },
433 	{ "url", FMD_TYPE_STRING, "http://sun.com/msg/" },
434 	{ "message_all", FMD_TYPE_BOOL, "false" },
435 	{ NULL, 0, NULL }
436 };
437 
438 static const fmd_hdl_ops_t fmd_ops = {
439 	syslog_recv,	/* fmdo_recv */
440 	NULL,		/* fmdo_timeout */
441 	NULL,		/* fmdo_close */
442 	NULL,		/* fmdo_stats */
443 	NULL,		/* fmdo_gc */
444 };
445 
446 static const fmd_hdl_info_t fmd_info = {
447 	"Syslog Messaging Agent", "1.0", &fmd_ops, fmd_props
448 };
449 
450 void
451 _fmd_init(fmd_hdl_t *hdl)
452 {
453 	const struct facility *fp;
454 	char *facname, *tz, *rootdir, *locdir, *locale, *p;
455 
456 	if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0)
457 		return; /* invalid data in configuration file */
458 
459 	(void) fmd_stat_create(hdl, FMD_STAT_NOALLOC, sizeof (syslog_stats) /
460 	    sizeof (fmd_stat_t), (fmd_stat_t *)&syslog_stats);
461 
462 	if ((syslog_logfd = open("/dev/conslog", O_WRONLY | O_NOCTTY)) == -1)
463 		fmd_hdl_abort(hdl, "syslog-msgs failed to open /dev/conslog");
464 
465 	if ((syslog_msgfd = open("/dev/sysmsg", O_WRONLY | O_NOCTTY)) == -1)
466 		fmd_hdl_abort(hdl, "syslog-msgs failed to open /dev/sysmsg");
467 
468 	/*
469 	 * All FMA event dictionaries use msgfmt(1) message objects to produce
470 	 * messages, even for the C locale.  We therefore want to use dgettext
471 	 * for all message lookups, but its defined behavior in the C locale is
472 	 * to return the input string.  Since our input strings are event codes
473 	 * and not format strings, this doesn't help us.  We resolve this nit
474 	 * by setting NLSPATH to a non-existent file: the presence of NLSPATH
475 	 * is defined to force dgettext(3C) to do a full lookup even for C.
476 	 */
477 	if (getenv("NLSPATH") == NULL && putenv(fmd_hdl_strdup(hdl,
478 	    "NLSPATH=/usr/lib/fm/fmd/fmd.cat", FMD_SLEEP)) != 0)
479 		fmd_hdl_abort(hdl, "syslog-msgs failed to set NLSPATH");
480 
481 	fmd_msg_lock();
482 	(void) setlocale(LC_MESSAGES, "");
483 	locale = setlocale(LC_MESSAGES, NULL);
484 	if (locale) {
485 		p = alloca(strlen(locale) + 1);
486 		locale = strcpy(p, locale);
487 	} else {
488 		locale = "<null>";
489 	}
490 	fmd_msg_unlock();
491 	fmd_hdl_debug(hdl, "locale=%s\n", locale);
492 
493 	/*
494 	 * If the "gmt" property is set to true, force our EVENT-TIME to be
495 	 * reported in GMT time; otherwise we use localtime.  tzset() affects
496 	 * the results of subsequent calls to strftime(3C) above.
497 	 */
498 	if (fmd_prop_get_int32(hdl, "gmt") == FMD_B_TRUE &&
499 	    ((tz = getenv("TZ")) == NULL || strcmp(tz, "GMT") != 0)) {
500 		(void) putenv(fmd_hdl_strdup(hdl, "TZ=GMT", FMD_SLEEP));
501 		tzset(); /* reload env */
502 	}
503 
504 	/*
505 	 * Look up the value of the "facility" property and use it to determine
506 	 * what syslog LOG_* facility value we use to fill in our log_ctl_t.
507 	 * The details of our logging method are described above syslog_emit().
508 	 */
509 	facname = fmd_prop_get_string(hdl, "facility");
510 
511 	for (fp = syslog_facs; fp->fac_name != NULL; fp++) {
512 		if (strcmp(fp->fac_name, facname) == 0)
513 			break;
514 	}
515 
516 	if (fp->fac_name == NULL)
517 		fmd_hdl_abort(hdl, "invalid 'facility' setting: %s\n", facname);
518 
519 	fmd_prop_free_string(hdl, facname);
520 	syslog_ctl.pri = fp->fac_value;
521 	syslog_ctl.flags = SL_CONSOLE | SL_LOGONLY;
522 
523 	/*
524 	 * Cache any properties we use every time we receive an event and
525 	 * subscribe to list.suspect events regardless of the .conf file.
526 	 */
527 	syslog_file = fmd_prop_get_int32(hdl, "syslogd");
528 	syslog_cons = fmd_prop_get_int32(hdl, "console");
529 	syslog_url = fmd_prop_get_string(hdl, "url");
530 	syslog_msgall = fmd_prop_get_int32(hdl, "message_all");
531 
532 	/*
533 	 * If fmd's rootdir property is set to a non-default root, then we are
534 	 * going to need to rebind the text domains we use for dgettext() as
535 	 * we go.  Look up the default l10n messages directory and make
536 	 * syslog_locdir be this path with fmd.rootdir prepended to it.
537 	 */
538 	rootdir = fmd_prop_get_string(hdl, "fmd.rootdir");
539 
540 	if (*rootdir != '\0' && strcmp(rootdir, "/") != 0) {
541 		fmd_msg_lock();
542 		locdir = bindtextdomain(SYSLOG_DOMAIN, NULL);
543 		fmd_msg_unlock();
544 		if (locdir != NULL) {
545 			size_t len = strlen(rootdir) + strlen(locdir) + 1;
546 			syslog_locdir = fmd_hdl_alloc(hdl, len, FMD_SLEEP);
547 			(void) snprintf(syslog_locdir, len, "%s%s", rootdir,
548 			    locdir);
549 			fmd_hdl_debug(hdl,
550 			    "binding textdomain to %s for syslog\n",
551 			    syslog_locdir);
552 		}
553 	}
554 
555 	fmd_prop_free_string(hdl, rootdir);
556 	fmd_hdl_subscribe(hdl, FM_LIST_SUSPECT_CLASS);
557 	fmd_hdl_subscribe(hdl, FM_LIST_UPDATED_CLASS);
558 	fmd_hdl_subscribe(hdl, FM_LIST_ISOLATED_CLASS);
559 	fmd_hdl_subscribe(hdl, FM_LIST_REPAIRED_CLASS);
560 	fmd_hdl_subscribe(hdl, FM_LIST_RESOLVED_CLASS);
561 }
562 
563 void
564 _fmd_fini(fmd_hdl_t *hdl)
565 {
566 	fmd_hdl_strfree(hdl, syslog_locdir);
567 	fmd_prop_free_string(hdl, syslog_url);
568 
569 	(void) close(syslog_logfd);
570 	(void) close(syslog_msgfd);
571 }
572