X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fmain.c;h=9a51a9187ffe03a2c1b5c01d6b96a6a671180273;hp=3810033fb223ca5bf1586d71cd2894a35eb82528;hb=1104f3c1604874c2b742e761b56f4349fe3e1e58;hpb=e364ad0628b5930a671ae5be863b960f4bd748a8 diff --git a/src/main.c b/src/main.c index 3810033fb..9a51a9187 100644 --- a/src/main.c +++ b/src/main.c @@ -1,4 +1,4 @@ -/*-*- Mode: C; c-basic-offset: 8 -*-*/ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. @@ -38,13 +38,15 @@ #include "hostname-setup.h" #include "loopback-setup.h" #include "kmod-setup.h" -#include "modprobe-setup.h" +#include "locale-setup.h" #include "load-fragment.h" #include "fdset.h" #include "special.h" #include "conf-parser.h" #include "bus-errors.h" #include "missing.h" +#include "label.h" +#include "build.h" static enum { ACTION_RUN, @@ -55,24 +57,22 @@ static enum { } arg_action = ACTION_RUN; static char *arg_default_unit = NULL; -static char *arg_console = NULL; static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID; static bool arg_dump_core = true; static bool arg_crash_shell = false; static int arg_crash_chvt = -1; static bool arg_confirm_spawn = false; -static bool arg_nomodules = false; static bool arg_show_status = true; +#ifdef HAVE_SYSV_COMPAT static bool arg_sysv_console = true; +#endif +static bool arg_mount_auto = true; +static bool arg_swap_auto = true; +static char *arg_console = NULL; static FILE* serialization = NULL; -_noreturn_ static void freeze(void) { - for (;;) - pause(); -} - static void nop_handler(int sig) { } @@ -117,12 +117,13 @@ _noreturn_ static void crash(int sig) { _exit(1); } else { - int status; + siginfo_t status; + int r; /* Order things nicely. */ - if (waitpid(pid, &status, 0) < 0) - log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(errno)); - else if (!WCOREDUMP(status)) + if ((r = wait_for_terminate(pid, &status)) < 0) + log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); + else if (status.si_code != CLD_DUMPED) log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); else log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); @@ -232,17 +233,20 @@ static int set_default_unit(const char *u) { static int parse_proc_cmdline_word(const char *word) { static const char * const rlmap[] = { - "single", SPECIAL_RESCUE_TARGET, - "-s", SPECIAL_RESCUE_TARGET, - "s", SPECIAL_RESCUE_TARGET, - "S", SPECIAL_RESCUE_TARGET, - "1", SPECIAL_RESCUE_TARGET, - "2", SPECIAL_RUNLEVEL2_TARGET, - "3", SPECIAL_RUNLEVEL3_TARGET, - "4", SPECIAL_RUNLEVEL4_TARGET, - "5", SPECIAL_RUNLEVEL5_TARGET + "emergency", SPECIAL_EMERGENCY_TARGET, + "single", SPECIAL_RESCUE_TARGET, + "-s", SPECIAL_RESCUE_TARGET, + "s", SPECIAL_RESCUE_TARGET, + "S", SPECIAL_RESCUE_TARGET, + "1", SPECIAL_RESCUE_TARGET, + "2", SPECIAL_RUNLEVEL2_TARGET, + "3", SPECIAL_RUNLEVEL3_TARGET, + "4", SPECIAL_RUNLEVEL4_TARGET, + "5", SPECIAL_RUNLEVEL5_TARGET, }; + assert(word); + if (startswith(word, "systemd.unit=")) return set_default_unit(word + 13); @@ -305,7 +309,7 @@ static int parse_proc_cmdline_word(const char *word) { log_warning("Failed to parse show status switch %s, Ignoring.", word + 20); else arg_show_status = r; - +#ifdef HAVE_SYSV_COMPAT } else if (startswith(word, "systemd.sysv_console=")) { int r; @@ -313,6 +317,7 @@ static int parse_proc_cmdline_word(const char *word) { log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20); else arg_sysv_console = r; +#endif } else if (startswith(word, "systemd.")) { @@ -325,16 +330,16 @@ static int parse_proc_cmdline_word(const char *word) { "systemd.crash_chvt=N Change to VT #N on crash\n" "systemd.confirm_spawn=0|1 Confirm every process spawn\n" "systemd.show_status=0|1 Show status updates on the console during bootup\n" +#ifdef HAVE_SYSV_COMPAT "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n" +#endif "systemd.log_target=console|kmsg|syslog|syslog-org-kmsg|null\n" " Log target\n" "systemd.log_level=LEVEL Log level\n" "systemd.log_color=0|1 Highlight important log messages\n" "systemd.log_location=0|1 Include code location in log messages\n"); - } else if (streq(word, "nomodules")) - arg_nomodules = true; - else if (startswith(word, "console=")) { + } else if (startswith(word, "console=")) { const char *k; size_t l; char *w = NULL; @@ -342,6 +347,7 @@ static int parse_proc_cmdline_word(const char *word) { k = word + 8; l = strcspn(k, ","); + /* Ignore the console setting if set to a VT */ if (l < 4 || !startswith(k, "tty") || k[3+strspn(k+3, "0123456789")] != 0) { @@ -355,7 +361,9 @@ static int parse_proc_cmdline_word(const char *word) { } else if (streq(word, "quiet")) { arg_show_status = false; +#ifdef HAVE_SYSV_COMPAT arg_sysv_console = false; +#endif } else { unsigned i; @@ -492,16 +500,20 @@ static int config_parse_cpu_affinity( static int parse_config_file(void) { const ConfigItem items[] = { - { "LogLevel", config_parse_level, NULL, "Manager" }, - { "LogTarget", config_parse_target, NULL, "Manager" }, - { "LogColor", config_parse_color, NULL, "Manager" }, - { "LogLocation", config_parse_location, NULL, "Manager" }, - { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" }, - { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" }, - { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" }, - { "SysVConsole", config_parse_bool, &arg_sysv_console,"Manager" }, - { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" }, - { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" }, + { "LogLevel", config_parse_level, NULL, "Manager" }, + { "LogTarget", config_parse_target, NULL, "Manager" }, + { "LogColor", config_parse_color, NULL, "Manager" }, + { "LogLocation", config_parse_location, NULL, "Manager" }, + { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" }, + { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" }, + { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" }, +#ifdef HAVE_SYSV_COMPAT + { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" }, +#endif + { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" }, + { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" }, + { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" }, + { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" }, { NULL, NULL, NULL, NULL } }; @@ -533,11 +545,9 @@ static int parse_config_file(void) { } static int parse_proc_cmdline(void) { - char *line; + char *line, *w, *state; int r; - char *w; size_t l; - char *state; if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); @@ -602,7 +612,9 @@ static int parse_argv(int argc, char *argv[]) { { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL }, { "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN }, { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, +#ifdef HAVE_SYSV_COMPAT { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE }, +#endif { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, { "introspect", optional_argument, NULL, ARG_INTROSPECT }, { NULL, 0, NULL, 0 } @@ -706,7 +718,7 @@ static int parse_argv(int argc, char *argv[]) { } else arg_show_status = true; break; - +#ifdef HAVE_SYSV_COMPAT case ARG_SYSV_CONSOLE: if (optarg) { @@ -718,6 +730,7 @@ static int parse_argv(int argc, char *argv[]) { } else arg_sysv_console = true; break; +#endif case ARG_DESERIALIZE: { int fd; @@ -805,7 +818,9 @@ static int help(void) { " --crash-shell Run shell on crash\n" " --confirm-spawn Ask for confirmation when spawning processes\n" " --show-status[=0|1] Show status updates on the console during bootup\n" +#ifdef HAVE_SYSV_COMPAT " --sysv-console[=0|1] Connect output of SysV scripts to console\n" +#endif " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n" " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" " --log-color[=0|1] Highlight important log messages\n" @@ -871,10 +886,10 @@ fail: int main(int argc, char *argv[]) { Manager *m = NULL; - Unit *target = NULL; - int r, retval = 1; + int r, retval = EXIT_FAILURE; FDSet *fds = NULL; bool reexecute = false; + const char *shutdown_verb = NULL; if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { /* This is compatbility support for SysV, where @@ -933,10 +948,10 @@ int main(int argc, char *argv[]) { goto finish; } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { unit_dump_config_items(stdout); - retval = 0; + retval = EXIT_SUCCESS; goto finish; } else if (arg_action == ACTION_DONE) { - retval = 0; + retval = EXIT_SUCCESS; goto finish; } @@ -958,6 +973,11 @@ int main(int argc, char *argv[]) { "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", arg_running_as == MANAGER_SYSTEM); + /* Unset some environment variables passed in from the kernel + * that don't really make sense for us. */ + unsetenv("HOME"); + unsetenv("TERM"); + /* Move out of the way, so that we won't block unmounts */ assert_se(chdir("/") == 0); @@ -987,26 +1007,20 @@ int main(int argc, char *argv[]) { if (getpid() == 1) install_crash_handler(); - log_info(PACKAGE_STRING " running in %s mode.", manager_running_as_to_string(arg_running_as)); + log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG, + PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as)); - if (arg_running_as == MANAGER_SYSTEM) { + if (arg_running_as == MANAGER_SYSTEM && !serialization) { + locale_setup(); - /* Disable nscd, to avoid deadlocks when systemd uses - * NSS and the nscd socket is maintained by us. */ - /* if (nss_disable_nscd) { */ - /* log_debug("Disabling nscd"); */ - /* nss_disable_nscd(); */ - /* } else */ - /* log_debug("Hmm, can't disable nscd."); */ - - if (!serialization) { - if (arg_show_status) - status_welcome(); - modprobe_setup(arg_nomodules); - kmod_setup(); - hostname_setup(); - loopback_setup(); - } + if (arg_show_status) + status_welcome(); + + kmod_setup(); + hostname_setup(); + loopback_setup(); + + mkdir_p("/dev/.systemd/ask-password/", 0755); } if ((r = manager_new(arg_running_as, &m)) < 0) { @@ -1016,7 +1030,14 @@ int main(int argc, char *argv[]) { m->confirm_spawn = arg_confirm_spawn; m->show_status = arg_show_status; +#ifdef HAVE_SYSV_COMPAT m->sysv_console = arg_sysv_console; +#endif + m->mount_auto = arg_mount_auto; + m->swap_auto = arg_swap_auto; + + if (arg_console) + manager_set_console(m, arg_console); if ((r = manager_startup(m, serialization, fds)) < 0) log_error("Failed to fully start up daemon: %s", strerror(-r)); @@ -1034,6 +1055,7 @@ int main(int argc, char *argv[]) { serialization = NULL; } else { DBusError error; + Unit *target = NULL; dbus_error_init(&error); @@ -1042,15 +1064,29 @@ int main(int argc, char *argv[]) { if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) { log_error("Failed to load default target: %s", bus_error(&error, r)); dbus_error_free(&error); + } else if (target->meta.load_state == UNIT_ERROR) + log_error("Failed to load default target: %s", strerror(-target->meta.load_error)); + else if (target->meta.load_state == UNIT_MASKED) + log_error("Default target masked."); + if (!target || target->meta.load_state != UNIT_LOADED) { log_info("Trying to load rescue target..."); + if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) { log_error("Failed to load rescue target: %s", bus_error(&error, r)); dbus_error_free(&error); goto finish; + } else if (target->meta.load_state == UNIT_ERROR) { + log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error)); + goto finish; + } else if (target->meta.load_state == UNIT_MASKED) { + log_error("Rescue target masked."); + goto finish; } } + assert(target->meta.load_state == UNIT_LOADED); + if (arg_action == ACTION_TEST) { printf("-> By units:\n"); manager_dump_units(m, stdout, "\t"); @@ -1062,25 +1098,10 @@ int main(int argc, char *argv[]) { goto finish; } - if (arg_console && arg_running_as == MANAGER_SYSTEM) { - char *name; - - if (asprintf(&name, "getty@%s.service", arg_console) < 0) - log_error("Out of memory while generating console getty service name."); - else { - if ((r = manager_add_job_by_name(m, JOB_START, name, JOB_FAIL, false, &error, NULL)) < 0) { - log_error("Failed to start console getty target: %s", bus_error(&error, r)); - dbus_error_free(&error); - } - - free(name); - } - } - if (arg_action == ACTION_TEST) { printf("-> By jobs:\n"); manager_dump_jobs(m, stdout, "\t"); - retval = 0; + retval = EXIT_SUCCESS; goto finish; } } @@ -1094,7 +1115,7 @@ int main(int argc, char *argv[]) { switch (m->exit_code) { case MANAGER_EXIT: - retval = 0; + retval = EXIT_SUCCESS; log_debug("Exit."); goto finish; @@ -1112,6 +1133,23 @@ int main(int argc, char *argv[]) { log_notice("Reexecuting."); goto finish; + case MANAGER_REBOOT: + case MANAGER_POWEROFF: + case MANAGER_HALT: + case MANAGER_KEXEC: { + static const char * const table[_MANAGER_EXIT_CODE_MAX] = { + [MANAGER_REBOOT] = "reboot", + [MANAGER_POWEROFF] = "poweroff", + [MANAGER_HALT] = "halt", + [MANAGER_KEXEC] = "kexec" + }; + + assert_se(shutdown_verb = table[m->exit_code]); + + log_notice("Shutting down."); + goto finish; + } + default: assert_not_reached("Unknown exit code."); } @@ -1126,6 +1164,8 @@ finish: dbus_shutdown(); + label_finish(); + if (reexecute) { const char *args[15]; unsigned i = 0; @@ -1161,10 +1201,12 @@ finish: else args[i++] = "--show-status=0"; +#ifdef HAVE_SYSV_COMPAT if (arg_sysv_console) args[i++] = "--sysv-console=1"; else args[i++] = "--sysv-console=0"; +#endif snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); char_array_0(sfd); @@ -1187,10 +1229,19 @@ finish: if (fds) fdset_free(fds); + if (shutdown_verb) { + const char * command_line[] = { + SYSTEMD_SHUTDOWN_BINARY_PATH, + shutdown_verb, + NULL + }; + + execv(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line); + log_error("Failed to execute shutdown binary, freezing: %m"); + } + if (getpid() == 1) freeze(); - label_finish(); - return retval; }