1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * specials.c - knowledge of special services 31*0Sstevel@tonic-gate * 32*0Sstevel@tonic-gate * svc.startd(1M) has duties that cannot be carried out without knowledge of the 33*0Sstevel@tonic-gate * transition of various services, such as the milestones, to their online 34*0Sstevel@tonic-gate * states. Hooks are called with the restarter instance's ri_lock held, so 35*0Sstevel@tonic-gate * operations on all instances (or on the graph) should be performed 36*0Sstevel@tonic-gate * asynchronously. 37*0Sstevel@tonic-gate */ 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #include <sys/statvfs.h> 40*0Sstevel@tonic-gate #include <sys/types.h> 41*0Sstevel@tonic-gate #include <assert.h> 42*0Sstevel@tonic-gate #include <errno.h> 43*0Sstevel@tonic-gate #include <libintl.h> 44*0Sstevel@tonic-gate #include <limits.h> 45*0Sstevel@tonic-gate #include <locale.h> 46*0Sstevel@tonic-gate #include <pthread.h> 47*0Sstevel@tonic-gate #include <signal.h> 48*0Sstevel@tonic-gate #include <stdio.h> 49*0Sstevel@tonic-gate #include <string.h> 50*0Sstevel@tonic-gate #include <strings.h> 51*0Sstevel@tonic-gate #include <time.h> 52*0Sstevel@tonic-gate #include <zone.h> 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate #include "startd.h" 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate void 57*0Sstevel@tonic-gate special_null_transition() 58*0Sstevel@tonic-gate { 59*0Sstevel@tonic-gate } 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate static void 62*0Sstevel@tonic-gate special_fsroot_post_online() 63*0Sstevel@tonic-gate { 64*0Sstevel@tonic-gate static int once; 65*0Sstevel@tonic-gate char *locale; 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* 68*0Sstevel@tonic-gate * /usr, with timezone and locale data, is now available. 69*0Sstevel@tonic-gate */ 70*0Sstevel@tonic-gate if (!st->st_log_timezone_known) { 71*0Sstevel@tonic-gate tzset(); 72*0Sstevel@tonic-gate st->st_log_timezone_known = 1; 73*0Sstevel@tonic-gate } 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate if (!st->st_log_locale_known) { 76*0Sstevel@tonic-gate if (st->st_locale) 77*0Sstevel@tonic-gate locale = st->st_locale; 78*0Sstevel@tonic-gate 79*0Sstevel@tonic-gate (void) setlocale(LC_ALL, ""); 80*0Sstevel@tonic-gate st->st_locale = setlocale(LC_MESSAGES, ""); 81*0Sstevel@tonic-gate if (st->st_locale) { 82*0Sstevel@tonic-gate st->st_locale = safe_strdup(st->st_locale); 83*0Sstevel@tonic-gate xstr_sanitize(st->st_locale); 84*0Sstevel@tonic-gate free(locale); 85*0Sstevel@tonic-gate } else { 86*0Sstevel@tonic-gate st->st_locale = locale; 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN); 90*0Sstevel@tonic-gate st->st_log_locale_known = 1; 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate if (once) 94*0Sstevel@tonic-gate return; 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate /* 97*0Sstevel@tonic-gate * ctime(3C) ends with '\n\0'. 98*0Sstevel@tonic-gate */ 99*0Sstevel@tonic-gate once++; 100*0Sstevel@tonic-gate log_framework(LOG_INFO, "system start time was %s", 101*0Sstevel@tonic-gate ctime(&st->st_start_time.tv_sec)); 102*0Sstevel@tonic-gate } 103*0Sstevel@tonic-gate 104*0Sstevel@tonic-gate static void 105*0Sstevel@tonic-gate special_fsminimal_post_online() 106*0Sstevel@tonic-gate { 107*0Sstevel@tonic-gate ulong_t rfsid, vfsid; 108*0Sstevel@tonic-gate pid_t init_pid; 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate log_framework(LOG_DEBUG, "special_fsminimal_post_online hook " 111*0Sstevel@tonic-gate "executed\n"); 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate /* 114*0Sstevel@tonic-gate * Are / and /var really writeable? 115*0Sstevel@tonic-gate */ 116*0Sstevel@tonic-gate switch (fs_is_read_only("/", &rfsid)) { 117*0Sstevel@tonic-gate case 1: 118*0Sstevel@tonic-gate return; /* still read-only: install / ro root */ 119*0Sstevel@tonic-gate case 0: 120*0Sstevel@tonic-gate break; 121*0Sstevel@tonic-gate case -1: 122*0Sstevel@tonic-gate default: 123*0Sstevel@tonic-gate log_error(LOG_WARNING, gettext("couldn't check status of " 124*0Sstevel@tonic-gate "root filesystem: %s\n"), strerror(errno)); 125*0Sstevel@tonic-gate break; 126*0Sstevel@tonic-gate } 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate switch (fs_is_read_only("/var", &vfsid)) { 129*0Sstevel@tonic-gate case 1: 130*0Sstevel@tonic-gate if (vfsid != rfsid) { 131*0Sstevel@tonic-gate log_framework(LOG_WARNING, "/var filesystem " 132*0Sstevel@tonic-gate "read-only after system/filesystem/minimal\n"); 133*0Sstevel@tonic-gate if (fs_remount("/var")) 134*0Sstevel@tonic-gate log_framework(LOG_WARNING, "/var " 135*0Sstevel@tonic-gate "filesystem remount failed\n"); 136*0Sstevel@tonic-gate } 137*0Sstevel@tonic-gate break; 138*0Sstevel@tonic-gate case 0: 139*0Sstevel@tonic-gate break; 140*0Sstevel@tonic-gate case -1: 141*0Sstevel@tonic-gate default: 142*0Sstevel@tonic-gate log_error(LOG_WARNING, gettext("couldn't check status of " 143*0Sstevel@tonic-gate "/var filesystem: %s\n"), strerror(errno)); 144*0Sstevel@tonic-gate break; 145*0Sstevel@tonic-gate } 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate /* 148*0Sstevel@tonic-gate * Clear (dead) entries and record boot time. 149*0Sstevel@tonic-gate */ 150*0Sstevel@tonic-gate utmpx_clear_old(); 151*0Sstevel@tonic-gate utmpx_write_boottime(); 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate /* 154*0Sstevel@tonic-gate * Reinitialize the logs to point to LOG_PREFIX_NORMAL. 155*0Sstevel@tonic-gate */ 156*0Sstevel@tonic-gate log_init(); 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate /* 159*0Sstevel@tonic-gate * Poke init so it will create /etc/initpipe. 160*0Sstevel@tonic-gate */ 161*0Sstevel@tonic-gate if (zone_getattr(getzoneid(), ZONE_ATTR_INITPID, &init_pid, 162*0Sstevel@tonic-gate sizeof (init_pid)) != sizeof (init_pid)) { 163*0Sstevel@tonic-gate log_error(LOG_WARNING, "Could not get pid of init: %s.\n", 164*0Sstevel@tonic-gate strerror(errno)); 165*0Sstevel@tonic-gate } else { 166*0Sstevel@tonic-gate if (kill(init_pid, SIGHUP) != 0) { 167*0Sstevel@tonic-gate switch (errno) { 168*0Sstevel@tonic-gate case EPERM: 169*0Sstevel@tonic-gate case ESRCH: 170*0Sstevel@tonic-gate log_error(LOG_WARNING, 171*0Sstevel@tonic-gate "Could not signal init: %s.\n", 172*0Sstevel@tonic-gate strerror(errno)); 173*0Sstevel@tonic-gate break; 174*0Sstevel@tonic-gate 175*0Sstevel@tonic-gate case EINVAL: 176*0Sstevel@tonic-gate default: 177*0Sstevel@tonic-gate bad_error("kill", errno); 178*0Sstevel@tonic-gate } 179*0Sstevel@tonic-gate } 180*0Sstevel@tonic-gate } 181*0Sstevel@tonic-gate 182*0Sstevel@tonic-gate /* 183*0Sstevel@tonic-gate * Take pending snapshots and create a svc.startd instance. 184*0Sstevel@tonic-gate */ 185*0Sstevel@tonic-gate (void) startd_thread_create(restarter_post_fsminimal_thread, NULL); 186*0Sstevel@tonic-gate } 187*0Sstevel@tonic-gate 188*0Sstevel@tonic-gate static void 189*0Sstevel@tonic-gate special_single_post_online() 190*0Sstevel@tonic-gate { 191*0Sstevel@tonic-gate int r; 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate log_framework(LOG_DEBUG, "special_single_post_online hook executed\n"); 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate /* 196*0Sstevel@tonic-gate * Un-set the special reconfig reboot property. 197*0Sstevel@tonic-gate */ 198*0Sstevel@tonic-gate r = libscf_set_reconfig(0); 199*0Sstevel@tonic-gate switch (r) { 200*0Sstevel@tonic-gate case 0: 201*0Sstevel@tonic-gate case ENOENT: 202*0Sstevel@tonic-gate break; 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate case EPERM: 205*0Sstevel@tonic-gate case EACCES: 206*0Sstevel@tonic-gate case EROFS: 207*0Sstevel@tonic-gate log_error(LOG_WARNING, "Could not clear reconfiguration " 208*0Sstevel@tonic-gate "property: %s.\n", strerror(r)); 209*0Sstevel@tonic-gate break; 210*0Sstevel@tonic-gate 211*0Sstevel@tonic-gate default: 212*0Sstevel@tonic-gate bad_error("libscf_set_reconfig", r); 213*0Sstevel@tonic-gate } 214*0Sstevel@tonic-gate 215*0Sstevel@tonic-gate if (booting_to_single_user) 216*0Sstevel@tonic-gate (void) startd_thread_create(single_user_thread, NULL); 217*0Sstevel@tonic-gate } 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate static service_hook_assn_t special_svcs[] = { 220*0Sstevel@tonic-gate { "svc:/system/filesystem/root:default", 221*0Sstevel@tonic-gate special_null_transition, 222*0Sstevel@tonic-gate special_fsroot_post_online, 223*0Sstevel@tonic-gate special_null_transition }, 224*0Sstevel@tonic-gate { "svc:/system/filesystem/minimal:default", 225*0Sstevel@tonic-gate special_null_transition, 226*0Sstevel@tonic-gate special_fsminimal_post_online, 227*0Sstevel@tonic-gate special_null_transition }, 228*0Sstevel@tonic-gate { "svc:/milestone/single-user:default", 229*0Sstevel@tonic-gate special_null_transition, 230*0Sstevel@tonic-gate special_single_post_online, 231*0Sstevel@tonic-gate special_null_transition }, 232*0Sstevel@tonic-gate }; 233*0Sstevel@tonic-gate 234*0Sstevel@tonic-gate void 235*0Sstevel@tonic-gate special_online_hooks_get(const char *fmri, instance_hook_t *pre_onp, 236*0Sstevel@tonic-gate instance_hook_t *post_onp, instance_hook_t *post_offp) 237*0Sstevel@tonic-gate { 238*0Sstevel@tonic-gate int i; 239*0Sstevel@tonic-gate 240*0Sstevel@tonic-gate for (i = 0; i < sizeof (special_svcs) / sizeof (service_hook_assn_t); 241*0Sstevel@tonic-gate i++) 242*0Sstevel@tonic-gate if (strcmp(fmri, special_svcs[i].sh_fmri) == 0) { 243*0Sstevel@tonic-gate *pre_onp = special_svcs[i].sh_pre_online_hook; 244*0Sstevel@tonic-gate *post_onp = special_svcs[i].sh_post_online_hook; 245*0Sstevel@tonic-gate *post_offp = special_svcs[i].sh_post_online_hook; 246*0Sstevel@tonic-gate return; 247*0Sstevel@tonic-gate } 248*0Sstevel@tonic-gate 249*0Sstevel@tonic-gate *pre_onp = *post_onp = *post_offp = special_null_transition; 250*0Sstevel@tonic-gate } 251