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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* specials.c - knowledge of special services
*
* svc.startd(1M) has duties that cannot be carried out without knowledge of the
* transition of various services, such as the milestones, to their online
* states. Hooks are called with the restarter instance's ri_lock held, so
* operations on all instances (or on the graph) should be performed
* asynchronously.
*/
#include <sys/statvfs.h>
#include <sys/types.h>
#include <assert.h>
#include <errno.h>
#include <libintl.h>
#include <limits.h>
#include <locale.h>
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <time.h>
#include <zone.h>
#include "startd.h"
void
special_null_transition()
{
}
static void
special_fsroot_post_online()
{
static int once;
char *locale;
/*
* /usr, with timezone and locale data, is now available.
*/
if (!st->st_log_timezone_known) {
tzset();
st->st_log_timezone_known = 1;
}
if (!st->st_log_locale_known) {
locale = st->st_locale;
(void) setlocale(LC_ALL, "");
st->st_locale = setlocale(LC_MESSAGES, "");
if (st->st_locale) {
st->st_locale = safe_strdup(st->st_locale);
xstr_sanitize(st->st_locale);
free(locale);
} else {
st->st_locale = locale;
}
(void) textdomain(TEXT_DOMAIN);
st->st_log_locale_known = 1;
}
if (once)
return;
/*
* ctime(3C) ends with '\n\0'.
*/
once++;
log_framework(LOG_INFO, "system start time was %s",
ctime(&st->st_start_time.tv_sec));
}
static void
special_fsminimal_post_online(void)
{
ulong_t rfsid, fsid;
pid_t init_pid;
int ret;
log_framework(LOG_DEBUG, "special_fsminimal_post_online hook "
"executed\n");
/*
* If /var is still read-only, and it is on a separate filesystem, then
* attempt to mount it read-write now.
*/
if ((ret = fs_is_read_only("/var", &fsid)) == 1) {
(void) fs_is_read_only("/", &rfsid);
if (rfsid != fsid) {
log_framework(LOG_WARNING, "/var filesystem "
"read-only after system/filesystem/minimal\n");
if (fs_remount("/var"))
log_framework(LOG_WARNING, "/var "
"filesystem remount failed\n");
}
}
if ((ret = fs_is_read_only("/var", &fsid)) != 1) {
if (ret != 0)
log_error(LOG_WARNING, gettext("couldn't check status "
"of /var filesystem: %s\n"), strerror(errno));
/*
* Clear (dead) entries and record boot time.
*/
utmpx_clear_old();
utmpx_write_boottime();
/*
* Reinitialize the logs to point to LOG_PREFIX_NORMAL.
*/
log_init();
/*
* Poke init so it will create /var/run/initpipe.
*/
if (zone_getattr(getzoneid(), ZONE_ATTR_INITPID, &init_pid,
sizeof (init_pid)) != sizeof (init_pid)) {
log_error(LOG_WARNING, "Could not get pid of init: "
"%s.\n", strerror(errno));
} else {
if (kill(init_pid, SIGHUP) != 0) {
switch (errno) {
case EPERM:
case ESRCH:
log_error(LOG_WARNING,
"Could not signal init: %s.\n",
strerror(errno));
break;
case EINVAL:
default:
bad_error("kill", errno);
}
}
}
}
if ((ret = fs_is_read_only("/etc/svc", &fsid)) != 1) {
if (ret != 0)
log_error(LOG_WARNING, gettext("couldn't check status "
"of /etc/svc filesystem: %s\n"), strerror(errno));
/*
* Take pending snapshots and create a svc.startd instance.
*/
(void) startd_thread_create(restarter_post_fsminimal_thread,
NULL);
}
}
static void
special_single_post_online(void)
{
int r;
log_framework(LOG_DEBUG, "special_single_post_online hook executed\n");
/*
* Un-set the special reconfig reboot property.
*/
r = libscf_set_reconfig(0);
switch (r) {
case 0:
case ENOENT:
break;
case EPERM:
case EACCES:
case EROFS:
log_error(LOG_WARNING, "Could not clear reconfiguration "
"property: %s.\n", strerror(r));
break;
default:
bad_error("libscf_set_reconfig", r);
}
if (booting_to_single_user)
(void) startd_thread_create(single_user_thread, NULL);
}
static service_hook_assn_t special_svcs[] = {
{ "svc:/system/filesystem/root:default",
special_null_transition,
special_fsroot_post_online,
special_null_transition },
{ "svc:/system/filesystem/minimal:default",
special_null_transition,
special_fsminimal_post_online,
special_null_transition },
{ "svc:/milestone/single-user:default",
special_null_transition,
special_single_post_online,
special_null_transition },
};
void
special_online_hooks_get(const char *fmri, instance_hook_t *pre_onp,
instance_hook_t *post_onp, instance_hook_t *post_offp)
{
int i;
for (i = 0; i < sizeof (special_svcs) / sizeof (service_hook_assn_t);
i++)
if (strcmp(fmri, special_svcs[i].sh_fmri) == 0) {
*pre_onp = special_svcs[i].sh_pre_online_hook;
*post_onp = special_svcs[i].sh_post_online_hook;
*post_offp = special_svcs[i].sh_post_offline_hook;
return;
}
*pre_onp = *post_onp = *post_offp = special_null_transition;
}
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