X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fmain.c;h=29f97364a43a52965773deda2bfd568ed7b964e9;hp=fe291f8410e0822c6580b1251e61884a8731a19b;hb=0d8c31ff7237149b505290652864b4e7e866b2a7;hpb=6c081276dc11722656906361ac78e415757865e3 diff --git a/src/core/main.c b/src/core/main.c index fe291f841..29f97364a 100644 --- a/src/core/main.c +++ b/src/core/main.c @@ -19,8 +19,6 @@ along with systemd; If not, see . ***/ -#include - #include #include #include @@ -34,40 +32,52 @@ #include #include +#ifdef HAVE_VALGRIND_VALGRIND_H +#include +#endif +#ifdef HAVE_SECCOMP +#include +#endif + +#include "sd-daemon.h" +#include "sd-messages.h" +#include "sd-bus.h" #include "manager.h" #include "log.h" #include "load-fragment.h" #include "fdset.h" #include "special.h" #include "conf-parser.h" -#include "dbus-common.h" #include "missing.h" #include "label.h" +#include "pager.h" #include "build.h" #include "strv.h" #include "def.h" #include "virt.h" +#include "architecture.h" #include "watchdog.h" #include "path-util.h" #include "switch-root.h" #include "capability.h" #include "killall.h" #include "env-util.h" -#include "hwclock.h" -#include "sd-daemon.h" -#include "sd-messages.h" +#include "clock-util.h" +#include "fileio.h" +#include "dbus-manager.h" +#include "bus-error.h" +#include "bus-util.h" #include "mount-setup.h" #include "loopback-setup.h" -#ifdef HAVE_KMOD -#include "kmod-setup.h" -#endif #include "hostname-setup.h" #include "machine-id-setup.h" #include "selinux-setup.h" #include "ima-setup.h" -#include "fileio.h" #include "smack-setup.h" +#ifdef HAVE_KMOD +#include "kmod-setup.h" +#endif static enum { ACTION_RUN, @@ -77,32 +87,47 @@ static enum { ACTION_DUMP_CONFIGURATION_ITEMS, ACTION_DONE } arg_action = ACTION_RUN; - static char *arg_default_unit = NULL; static SystemdRunningAs arg_running_as = _SYSTEMD_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_show_status = true; +static ShowStatus arg_show_status = _SHOW_STATUS_UNSET; static bool arg_switched_root = false; +static int arg_no_pager = -1; static char ***arg_join_controllers = NULL; static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; +static usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC; +static usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC; +static usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC; +static usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL; +static unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST; static usec_t arg_runtime_watchdog = 0; static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; static char **arg_default_environment = NULL; -static struct rlimit *arg_default_rlimit[RLIMIT_NLIMITS] = {}; +static struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {}; static uint64_t arg_capability_bounding_set_drop = 0; static nsec_t arg_timer_slack_nsec = (nsec_t) -1; +static usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE; +static Set* arg_syscall_archs = NULL; +static FILE* arg_serialization = NULL; +static bool arg_default_cpu_accounting = false; +static bool arg_default_blockio_accounting = false; +static bool arg_default_memory_accounting = false; -static FILE* serialization = NULL; +static void nop_handler(int sig) {} + +static void pager_open_if_enabled(void) { + + if (arg_no_pager <= 0) + return; -static void nop_handler(int sig) { + pager_open(false); } -_noreturn_ static void crash(int sig) { +noreturn static void crash(int sig) { if (getpid() != 1) /* Pass this on immediately, if this is not PID 1 */ @@ -121,7 +146,7 @@ _noreturn_ static void crash(int sig) { pid = fork(); if (pid < 0) - log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); + log_error("Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); else if (pid == 0) { struct rlimit rl = {}; @@ -156,7 +181,7 @@ _noreturn_ static void crash(int sig) { 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); + log_error("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); } } @@ -187,7 +212,7 @@ _noreturn_ static void crash(int sig) { _exit(1); } - log_info("Successfully spawned crash shell as pid %lu.", (unsigned long) pid); + log_info("Successfully spawned crash shell as pid "PID_FMT".", pid); } log_info("Freezing execution."); @@ -226,7 +251,7 @@ static int console_setup(bool do_reset) { if (r < 0) log_error("Failed to reset /dev/console: %s", strerror(-r)); - close_nointr_nofail(tty_fd); + safe_close(tty_fd); return r; } @@ -245,7 +270,7 @@ static int set_default_unit(const char *u) { return 0; } -static int parse_proc_cmdline_word(const char *word) { +static int parse_proc_cmdline_item(const char *key, const char *value) { static const char * const rlmap[] = { "emergency", SPECIAL_EMERGENCY_TARGET, @@ -260,160 +285,126 @@ static int parse_proc_cmdline_word(const char *word) { "4", SPECIAL_RUNLEVEL4_TARGET, "5", SPECIAL_RUNLEVEL5_TARGET, }; + int r; - assert(word); + assert(key); - if (startswith(word, "systemd.unit=")) { + if (streq(key, "systemd.unit") && value) { if (!in_initrd()) - return set_default_unit(word + 13); + return set_default_unit(value); - } else if (startswith(word, "rd.systemd.unit=")) { + } else if (streq(key, "rd.systemd.unit") && value) { if (in_initrd()) - return set_default_unit(word + 16); + return set_default_unit(value); - } else if (startswith(word, "systemd.log_target=")) { + } else if (streq(key, "systemd.log_target") && value) { - if (log_set_target_from_string(word + 19) < 0) - log_warning("Failed to parse log target %s. Ignoring.", word + 19); + if (log_set_target_from_string(value) < 0) + log_warning("Failed to parse log target %s. Ignoring.", value); - } else if (startswith(word, "systemd.log_level=")) { + } else if (streq(key, "systemd.log_level") && value) { - if (log_set_max_level_from_string(word + 18) < 0) - log_warning("Failed to parse log level %s. Ignoring.", word + 18); + if (log_set_max_level_from_string(value) < 0) + log_warning("Failed to parse log level %s. Ignoring.", value); - } else if (startswith(word, "systemd.log_color=")) { + } else if (streq(key, "systemd.log_color") && value) { - if (log_show_color_from_string(word + 18) < 0) - log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); + if (log_show_color_from_string(value) < 0) + log_warning("Failed to parse log color setting %s. Ignoring.", value); - } else if (startswith(word, "systemd.log_location=")) { + } else if (streq(key, "systemd.log_location") && value) { - if (log_show_location_from_string(word + 21) < 0) - log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); + if (log_show_location_from_string(value) < 0) + log_warning("Failed to parse log location setting %s. Ignoring.", value); - } else if (startswith(word, "systemd.dump_core=")) { - int r; + } else if (streq(key, "systemd.dump_core") && value) { - if ((r = parse_boolean(word + 18)) < 0) - log_warning("Failed to parse dump core switch %s. Ignoring.", word + 18); + r = parse_boolean(value); + if (r < 0) + log_warning("Failed to parse dump core switch %s. Ignoring.", value); else arg_dump_core = r; - } else if (startswith(word, "systemd.crash_shell=")) { - int r; + } else if (streq(key, "systemd.crash_shell") && value) { - if ((r = parse_boolean(word + 20)) < 0) - log_warning("Failed to parse crash shell switch %s. Ignoring.", word + 20); + r = parse_boolean(value); + if (r < 0) + log_warning("Failed to parse crash shell switch %s. Ignoring.", value); else arg_crash_shell = r; - } else if (startswith(word, "systemd.confirm_spawn=")) { - int r; + } else if (streq(key, "systemd.crash_chvt") && value) { - if ((r = parse_boolean(word + 22)) < 0) - log_warning("Failed to parse confirm spawn switch %s. Ignoring.", word + 22); + if (safe_atoi(value, &r) < 0) + log_warning("Failed to parse crash chvt switch %s. Ignoring.", value); else - arg_confirm_spawn = r; + arg_crash_chvt = r; - } else if (startswith(word, "systemd.crash_chvt=")) { - int k; + } else if (streq(key, "systemd.confirm_spawn") && value) { - if (safe_atoi(word + 19, &k) < 0) - log_warning("Failed to parse crash chvt switch %s. Ignoring.", word + 19); + r = parse_boolean(value); + if (r < 0) + log_warning("Failed to parse confirm spawn switch %s. Ignoring.", value); else - arg_crash_chvt = k; + arg_confirm_spawn = r; - } else if (startswith(word, "systemd.show_status=")) { - int r; + } else if (streq(key, "systemd.show_status") && value) { - if ((r = parse_boolean(word + 20)) < 0) - log_warning("Failed to parse show status switch %s. Ignoring.", word + 20); - else - arg_show_status = r; - } else if (startswith(word, "systemd.default_standard_output=")) { - int r; + r = parse_show_status(value, &arg_show_status); + if (r < 0) + log_warning("Failed to parse show status switch %s. Ignoring.", value); + + } else if (streq(key, "systemd.default_standard_output") && value) { - if ((r = exec_output_from_string(word + 32)) < 0) - log_warning("Failed to parse default standard output switch %s. Ignoring.", word + 32); + r = exec_output_from_string(value); + if (r < 0) + log_warning("Failed to parse default standard output switch %s. Ignoring.", value); else arg_default_std_output = r; - } else if (startswith(word, "systemd.default_standard_error=")) { - int r; - if ((r = exec_output_from_string(word + 31)) < 0) - log_warning("Failed to parse default standard error switch %s. Ignoring.", word + 31); + } else if (streq(key, "systemd.default_standard_error") && value) { + + r = exec_output_from_string(value); + if (r < 0) + log_warning("Failed to parse default standard error switch %s. Ignoring.", value); else arg_default_std_error = r; - } else if (startswith(word, "systemd.setenv=")) { - _cleanup_free_ char *cenv = NULL; - cenv = strdup(word + 15); - if (!cenv) - return -ENOMEM; + } else if (streq(key, "systemd.setenv") && value) { - if (env_assignment_is_valid(cenv)) { + if (env_assignment_is_valid(value)) { char **env; - env = strv_env_set(arg_default_environment, cenv); + env = strv_env_set(arg_default_environment, value); if (env) arg_default_environment = env; else - log_warning("Setting environment variable '%s' failed, ignoring: %m", cenv); + log_warning("Setting environment variable '%s' failed, ignoring: %s", value, strerror(ENOMEM)); } else - log_warning("Environment variable name '%s' is not valid. Ignoring.", cenv); - - } else if (startswith(word, "systemd.") || - (in_initrd() && startswith(word, "rd.systemd."))) { - - const char *c; - - /* Ignore systemd.journald.xyz and friends */ - c = word; - if (startswith(c, "rd.")) - c += 3; - if (startswith(c, "systemd.")) - c += 8; - if (c[strcspn(c, ".=")] != '.') { - - log_warning("Unknown kernel switch %s. Ignoring.", word); - - log_info("Supported kernel switches:\n" - "systemd.unit=UNIT Default unit to start\n" - "rd.systemd.unit=UNIT Default unit to start when run in initrd\n" - "systemd.dump_core=0|1 Dump core on crash\n" - "systemd.crash_shell=0|1 Run shell on crash\n" - "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" - "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-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" - "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" - " Set default log output for services\n" - "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" - " Set default log error output for services\n" - "systemd.setenv=ASSIGNMENT Set an environment variable for all spawned processes\n"); - } + log_warning("Environment variable name '%s' is not valid. Ignoring.", value); + + } else if (streq(key, "quiet") && !value) { + + log_set_max_level(LOG_NOTICE); + + if (arg_show_status == _SHOW_STATUS_UNSET) + arg_show_status = SHOW_STATUS_AUTO; + + } else if (streq(key, "debug") && !value) { - } else if (streq(word, "quiet")) - arg_show_status = false; - else if (streq(word, "debug")) { - /* Log to kmsg, the journal socket will fill up before the - * journal is started and tools running during that time - * will block with every log message for for 60 seconds, - * before they give up. */ log_set_max_level(LOG_DEBUG); - log_set_target(LOG_TARGET_KMSG); - } else if (!in_initrd()) { + + if (detect_container(NULL) > 0) + log_set_target(LOG_TARGET_CONSOLE); + + } else if (!in_initrd() && !value) { unsigned i; /* SysV compatibility */ for (i = 0; i < ELEMENTSOF(rlmap); i += 2) - if (streq(word, rlmap[i])) + if (streq(key, rlmap[i])) return set_default_unit(rlmap[i+1]); } @@ -425,6 +416,7 @@ static int parse_proc_cmdline_word(const char *word) { const char *filename, \ unsigned line, \ const char *section, \ + unsigned section_line, \ const char *lvalue, \ int ltype, \ const char *rvalue, \ @@ -451,16 +443,17 @@ DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") - -static int config_parse_cpu_affinity2(const char *unit, - const char *filename, - unsigned line, - const char *section, - const char *lvalue, - int ltype, - const char *rvalue, - void *data, - void *userdata) { +static int config_parse_cpu_affinity2( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { char *w; size_t l; @@ -507,6 +500,36 @@ static int config_parse_cpu_affinity2(const char *unit, return 0; } +static int config_parse_show_status( + const char* unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + int k; + ShowStatus *b = data; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + k = parse_show_status(rvalue, b); + if (k < 0) { + log_syntax(unit, LOG_ERR, filename, line, -k, + "Failed to parse show status setting, ignoring: %s", rvalue); + return 0; + } + + return 0; +} + static void strv_free_free(char ***l) { char ***i; @@ -528,6 +551,7 @@ static int config_parse_join_controllers(const char *unit, const char *filename, unsigned line, const char *section, + unsigned section_line, const char *lvalue, int ltype, const char *rvalue, @@ -587,17 +611,12 @@ static int config_parse_join_controllers(const char *unit, for (a = arg_join_controllers; *a; a++) { if (strv_overlap(*a, l)) { - char **c; - - c = strv_merge(*a, l); - if (!c) { + if (strv_extend_strv(&l, *a) < 0) { strv_free(l); strv_free_free(t); return log_oom(); } - strv_free(l); - l = c; } else { char **c; @@ -625,93 +644,61 @@ static int config_parse_join_controllers(const char *unit, static int parse_config_file(void) { const ConfigTableItem items[] = { - { "Manager", "LogLevel", config_parse_level2, 0, NULL }, - { "Manager", "LogTarget", config_parse_target, 0, NULL }, - { "Manager", "LogColor", config_parse_color, 0, NULL }, - { "Manager", "LogLocation", config_parse_location, 0, NULL }, - { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, - { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, - { "Manager", "ShowStatus", config_parse_bool, 0, &arg_show_status }, - { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, - { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, - { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, - { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, - { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, - { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, - { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, - { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, - { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, - { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, - { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU]}, - { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE]}, - { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA]}, - { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK]}, - { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE]}, - { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS]}, - { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE]}, - { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS]}, - { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC]}, - { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK]}, - { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS]}, - { "Manager", "DefaultLimitSIGPENDING",config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING]}, - { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE]}, - { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE]}, - { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO]}, - { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME]}, - { NULL, NULL, NULL, 0, NULL } + { "Manager", "LogLevel", config_parse_level2, 0, NULL }, + { "Manager", "LogTarget", config_parse_target, 0, NULL }, + { "Manager", "LogColor", config_parse_color, 0, NULL }, + { "Manager", "LogLocation", config_parse_location, 0, NULL }, + { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, + { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, + { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, + { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, + { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, + { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, + { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, + { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, + { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, +#ifdef HAVE_SECCOMP + { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, +#endif + { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, + { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_default_timer_accuracy_usec }, + { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, + { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, + { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, + { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, + { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, + { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, + { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, + { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, + { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU] }, + { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] }, + { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA] }, + { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK] }, + { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE] }, + { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS] }, + { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] }, + { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS] }, + { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] }, + { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] }, + { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] }, + { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] }, + { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] }, + { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] }, + { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] }, + { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] }, + { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting }, + { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting }, + { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting }, + {} }; - _cleanup_fclose_ FILE *f; const char *fn; - int r; fn = arg_running_as == SYSTEMD_SYSTEM ? PKGSYSCONFDIR "/system.conf" : PKGSYSCONFDIR "/user.conf"; - f = fopen(fn, "re"); - if (!f) { - if (errno == ENOENT) - return 0; - - log_warning("Failed to open configuration file '%s': %m", fn); - return 0; - } - - r = config_parse(NULL, fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, false, NULL); - if (r < 0) - log_warning("Failed to parse configuration file: %s", strerror(-r)); - - return 0; -} - -static int parse_proc_cmdline(void) { - _cleanup_free_ char *line = NULL; - char *w, *state; - int r; - size_t l; - - /* Don't read /proc/cmdline if we are in a container, since - * that is only relevant for the host system */ - if (detect_container(NULL) > 0) - return 0; - - r = read_one_line_file("/proc/cmdline", &line); - if (r < 0) { - log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); - return 0; - } - - FOREACH_WORD_QUOTED(w, l, line, state) { - _cleanup_free_ char *word; - - word = strndup(w, l); - if (!word) - return log_oom(); - - r = parse_proc_cmdline_word(word); - if (r < 0) { - log_error("Failed on cmdline argument %s: %s", word, strerror(-r)); - return r; - } - } + config_parse(NULL, fn, NULL, + "Manager\0", + config_item_table_lookup, items, + false, false, true, NULL); return 0; } @@ -727,6 +714,7 @@ static int parse_argv(int argc, char *argv[]) { ARG_SYSTEM, ARG_USER, ARG_TEST, + ARG_NO_PAGER, ARG_VERSION, ARG_DUMP_CONFIGURATION_ITEMS, ARG_DUMP_CORE, @@ -735,7 +723,6 @@ static int parse_argv(int argc, char *argv[]) { ARG_SHOW_STATUS, ARG_DESERIALIZE, ARG_SWITCHED_ROOT, - ARG_INTROSPECT, ARG_DEFAULT_STD_OUTPUT, ARG_DEFAULT_STD_ERROR }; @@ -749,6 +736,7 @@ static int parse_argv(int argc, char *argv[]) { { "system", no_argument, NULL, ARG_SYSTEM }, { "user", no_argument, NULL, ARG_USER }, { "test", no_argument, NULL, ARG_TEST }, + { "no-pager", no_argument, NULL, ARG_NO_PAGER }, { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, ARG_VERSION }, { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, @@ -758,10 +746,9 @@ static int parse_argv(int argc, char *argv[]) { { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, - { "introspect", optional_argument, NULL, ARG_INTROSPECT }, { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, - { NULL, 0, NULL, 0 } + {} }; int c, r; @@ -777,7 +764,8 @@ static int parse_argv(int argc, char *argv[]) { switch (c) { case ARG_LOG_LEVEL: - if ((r = log_set_max_level_from_string(optarg)) < 0) { + r = log_set_max_level_from_string(optarg); + if (r < 0) { log_error("Failed to parse log level %s.", optarg); return r; } @@ -785,8 +773,8 @@ static int parse_argv(int argc, char *argv[]) { break; case ARG_LOG_TARGET: - - if ((r = log_set_target_from_string(optarg)) < 0) { + r = log_set_target_from_string(optarg); + if (r < 0) { log_error("Failed to parse log target %s.", optarg); return r; } @@ -796,7 +784,8 @@ static int parse_argv(int argc, char *argv[]) { case ARG_LOG_COLOR: if (optarg) { - if ((r = log_show_color_from_string(optarg)) < 0) { + r = log_show_color_from_string(optarg); + if (r < 0) { log_error("Failed to parse log color setting %s.", optarg); return r; } @@ -806,9 +795,9 @@ static int parse_argv(int argc, char *argv[]) { break; case ARG_LOG_LOCATION: - if (optarg) { - if ((r = log_show_location_from_string(optarg)) < 0) { + r = log_show_location_from_string(optarg); + if (r < 0) { log_error("Failed to parse log location setting %s.", optarg); return r; } @@ -818,8 +807,8 @@ static int parse_argv(int argc, char *argv[]) { break; case ARG_DEFAULT_STD_OUTPUT: - - if ((r = exec_output_from_string(optarg)) < 0) { + r = exec_output_from_string(optarg); + if (r < 0) { log_error("Failed to parse default standard output setting %s.", optarg); return r; } else @@ -827,8 +816,8 @@ static int parse_argv(int argc, char *argv[]) { break; case ARG_DEFAULT_STD_ERROR: - - if ((r = exec_output_from_string(optarg)) < 0) { + r = exec_output_from_string(optarg); + if (r < 0) { log_error("Failed to parse default standard error output setting %s.", optarg); return r; } else @@ -837,7 +826,8 @@ static int parse_argv(int argc, char *argv[]) { case ARG_UNIT: - if ((r = set_default_unit(optarg)) < 0) { + r = set_default_unit(optarg); + if (r < 0) { log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); return r; } @@ -854,6 +844,12 @@ static int parse_argv(int argc, char *argv[]) { case ARG_TEST: arg_action = ACTION_TEST; + if (arg_no_pager < 0) + arg_no_pager = true; + break; + + case ARG_NO_PAGER: + arg_no_pager = true; break; case ARG_VERSION: @@ -892,12 +888,14 @@ static int parse_argv(int argc, char *argv[]) { break; case ARG_SHOW_STATUS: - r = optarg ? parse_boolean(optarg) : 1; - if (r < 0) { - log_error("Failed to parse show status boolean %s.", optarg); - return r; - } - arg_show_status = r; + if (optarg) { + r = parse_show_status(optarg, &arg_show_status); + if (r < 0) { + log_error("Failed to parse show status boolean %s.", optarg); + return r; + } + } else + arg_show_status = SHOW_STATUS_YES; break; case ARG_DESERIALIZE: { @@ -918,10 +916,10 @@ static int parse_argv(int argc, char *argv[]) { return -errno; } - if (serialization) - fclose(serialization); + if (arg_serialization) + fclose(arg_serialization); - serialization = f; + arg_serialization = f; break; } @@ -930,29 +928,10 @@ static int parse_argv(int argc, char *argv[]) { arg_switched_root = true; break; - case ARG_INTROSPECT: { - const char * const * i = NULL; - - for (i = bus_interface_table; *i; i += 2) - if (!optarg || streq(i[0], optarg)) { - fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE - "\n", stdout); - fputs(i[1], stdout); - fputs("\n", stdout); - - if (optarg) - break; - } - - if (!i[0] && optarg) - log_error("Unknown interface %s.", optarg); - - arg_action = ACTION_DONE; - break; - } - case 'h': arg_action = ACTION_HELP; + if (arg_no_pager < 0) + arg_no_pager = true; break; case 'D': @@ -996,11 +975,24 @@ static int parse_argv(int argc, char *argv[]) { * relevant for the container, hence we rely on argv[] * instead. */ - for (a = argv; a < argv + argc; a++) - if ((r = parse_proc_cmdline_word(*a)) < 0) { + for (a = argv; a < argv + argc; a++) { + _cleanup_free_ char *w; + char *value; + + w = strdup(*a); + if (!w) + return log_oom(); + + value = strchr(w, '='); + if (value) + *(value++) = 0; + + r = parse_proc_cmdline_item(w, value); + if (r < 0) { log_error("Failed on cmdline argument %s: %s", *a, strerror(-r)); return r; } + } } return 0; @@ -1012,8 +1004,8 @@ static int help(void) { "Starts up and maintains the system or user services.\n\n" " -h --help Show this help\n" " --test Determine startup sequence, dump it and exit\n" + " --no-pager Do not pipe output into a pager\n" " --dump-configuration-items Dump understood unit configuration items\n" - " --introspect[=INTERFACE] Extract D-Bus interface data\n" " --unit=UNIT Set default unit\n" " --system Run a system instance, even if PID != 1\n" " --user Run a user instance\n" @@ -1056,7 +1048,7 @@ static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching /* Make sure nothing is really destructed when we shut down */ m->n_reloading ++; - bus_broadcast_reloading(m, true); + bus_manager_send_reloading(m, true); fds = fdset_new(); if (!fds) { @@ -1139,19 +1131,25 @@ static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { } static void test_mtab(void) { - char *p; - /* Check that /etc/mtab is a symlink */ + static const char ok[] = + "/proc/self/mounts\0" + "/proc/mounts\0" + "../proc/self/mounts\0" + "../proc/mounts\0"; - if (readlink_malloc("/etc/mtab", &p) >= 0) { - bool b; + _cleanup_free_ char *p = NULL; + int r; - b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts"); - free(p); + /* Check that /etc/mtab is a symlink to the right place or + * non-existing. But certainly not a file, or a symlink to + * some weird place... */ - if (b) - return; - } + r = readlink_malloc("/etc/mtab", &p); + if (r == -ENOENT) + return; + if (r >= 0 && nulstr_contains(ok, p)) + return; log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " "This is not supported anymore. " @@ -1170,21 +1168,6 @@ static void test_usr(void) { "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); } -static void test_cgroups(void) { - - if (access("/proc/cgroups", F_OK) >= 0) - return; - - log_warning("CONFIG_CGROUPS was not set when your kernel was compiled. " - "Systems without control groups are not supported. " - "We will now sleep for 10s, and then continue boot-up. " - "Expect breakage and please do not file bugs. " - "Instead fix your kernel and enable CONFIG_CGROUPS. " - "Consult http://0pointer.de/blog/projects/cgroups-vs-cgroups.html for more information."); - - sleep(10); -} - static int initialize_join_controllers(void) { /* By default, mount "cpu" + "cpuacct" together, and "net_cls" * + "net_prio". We'd like to add "cpuset" to the mix, but @@ -1207,6 +1190,79 @@ static int initialize_join_controllers(void) { return 0; } +static int enforce_syscall_archs(Set *archs) { +#ifdef HAVE_SECCOMP + scmp_filter_ctx *seccomp; + Iterator i; + void *id; + int r; + + seccomp = seccomp_init(SCMP_ACT_ALLOW); + if (!seccomp) + return log_oom(); + + SET_FOREACH(id, arg_syscall_archs, i) { + r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1); + if (r == -EEXIST) + continue; + if (r < 0) { + log_error("Failed to add architecture to seccomp: %s", strerror(-r)); + goto finish; + } + } + + r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0); + if (r < 0) { + log_error("Failed to unset NO_NEW_PRIVS: %s", strerror(-r)); + goto finish; + } + + r = seccomp_load(seccomp); + if (r < 0) + log_error("Failed to add install architecture seccomp: %s", strerror(-r)); + +finish: + seccomp_release(seccomp); + return r; +#else + return 0; +#endif +} + +static int status_welcome(void) { + _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL; + int r; + + r = parse_env_file("/etc/os-release", NEWLINE, + "PRETTY_NAME", &pretty_name, + "ANSI_COLOR", &ansi_color, + NULL); + if (r == -ENOENT) { + r = parse_env_file("/usr/lib/os-release", NEWLINE, + "PRETTY_NAME", &pretty_name, + "ANSI_COLOR", &ansi_color, + NULL); + } + + if (r < 0 && r != -ENOENT) + log_warning("Failed to read os-release file: %s", strerror(-r)); + + return status_printf(NULL, false, false, + "\nWelcome to \x1B[%sm%s\x1B[0m!\n", + isempty(ansi_color) ? "1" : ansi_color, + isempty(pretty_name) ? "Linux" : pretty_name); +} + +static int write_container_id(void) { + const char *c; + + c = getenv("container"); + if (isempty(c)) + return 0; + + return write_string_file("/run/systemd/container", c); +} + int main(int argc, char *argv[]) { Manager *m = NULL; int r, retval = EXIT_FAILURE; @@ -1218,12 +1274,15 @@ int main(int argc, char *argv[]) { dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; dual_timestamp userspace_timestamp = { 0ULL, 0ULL }; dual_timestamp kernel_timestamp = { 0ULL, 0ULL }; + dual_timestamp security_start_timestamp = { 0ULL, 0ULL }; + dual_timestamp security_finish_timestamp = { 0ULL, 0ULL }; static char systemd[] = "systemd"; bool skip_setup = false; - int j; + unsigned j; bool loaded_policy = false; bool arm_reboot_watchdog = false; bool queue_default_job = false; + bool empty_etc = false; char *switch_root_dir = NULL, *switch_root_init = NULL; static struct rlimit saved_rlimit_nofile = { 0, 0 }; @@ -1282,23 +1341,25 @@ int main(int argc, char *argv[]) { if (!skip_setup) { mount_setup_early(); + dual_timestamp_get(&security_start_timestamp); if (selinux_setup(&loaded_policy) < 0) goto finish; if (ima_setup() < 0) goto finish; - if (smack_setup() < 0) + if (smack_setup(&loaded_policy) < 0) goto finish; + dual_timestamp_get(&security_finish_timestamp); } if (label_init(NULL) < 0) goto finish; if (!skip_setup) { - if (hwclock_is_localtime() > 0) { + if (clock_is_localtime() > 0) { int min; /* The first-time call to settimeofday() does a time warp in the kernel */ - r = hwclock_set_timezone(&min); + r = clock_set_timezone(&min); if (r < 0) log_error("Failed to apply local time delta, ignoring: %s", strerror(-r)); else @@ -1312,10 +1373,10 @@ int main(int argc, char *argv[]) { * that way. In such case, we need to delay the time-warp or the sealing * until we reach the real system. */ - hwclock_reset_timezone(); + clock_reset_timezone(); /* Tell the kernel our timezone */ - r = hwclock_set_timezone(NULL); + r = clock_set_timezone(NULL); if (r < 0) log_error("Failed to set the kernel's timezone, ignoring: %s", strerror(-r)); } @@ -1333,6 +1394,7 @@ int main(int argc, char *argv[]) { /* Running inside a container, as PID 1 */ arg_running_as = SYSTEMD_SYSTEM; log_set_target(LOG_TARGET_CONSOLE); + log_close_console(); /* force reopen of /dev/console */ log_open(); /* For the later on, see above... */ @@ -1383,7 +1445,7 @@ int main(int argc, char *argv[]) { goto finish; if (arg_running_as == SYSTEMD_SYSTEM) - if (parse_proc_cmdline() < 0) + if (parse_proc_cmdline(parse_proc_cmdline_item) < 0) goto finish; log_parse_environment(); @@ -1411,6 +1473,11 @@ int main(int argc, char *argv[]) { goto finish; } + if (arg_action == ACTION_TEST) + skip_setup = true; + + pager_open_if_enabled(); + if (arg_action == ACTION_HELP) { retval = help(); goto finish; @@ -1426,6 +1493,12 @@ int main(int argc, char *argv[]) { goto finish; } + if (arg_running_as == SYSTEMD_USER && + !getenv("XDG_RUNTIME_DIR")) { + log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); + goto finish; + } + assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); /* Close logging fds, in order not to confuse fdset below */ @@ -1439,8 +1512,8 @@ int main(int argc, char *argv[]) { } else fdset_cloexec(fds, true); - if (serialization) - assert_se(fdset_remove(fds, fileno(serialization)) >= 0); + if (arg_serialization) + assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); if (arg_running_as == SYSTEMD_SYSTEM) /* Become a session leader if we aren't one yet. */ @@ -1449,9 +1522,6 @@ int main(int argc, char *argv[]) { /* Move out of the way, so that we won't block unmounts */ assert_se(chdir("/") == 0); - /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */ - dbus_connection_set_change_sigpipe(FALSE); - /* Reset the console, but only if this is really init and we * are freshly booted */ if (arg_running_as == SYSTEMD_SYSTEM && arg_action == ACTION_RUN) @@ -1460,6 +1530,9 @@ int main(int argc, char *argv[]) { /* Open the logging devices, if possible and necessary */ log_open(); + if (arg_show_status == _SHOW_STATUS_UNSET) + arg_show_status = SHOW_STATUS_YES; + /* Make sure we leave a core dump without panicing the * kernel. */ if (getpid() == 1) { @@ -1473,32 +1546,52 @@ int main(int argc, char *argv[]) { if (arg_running_as == SYSTEMD_SYSTEM) { const char *virtualization = NULL; - log_info(PACKAGE_STRING " running in system mode. (" SYSTEMD_FEATURES ")"); + log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")", + arg_action == ACTION_TEST ? "test " : "" ); detect_virtualization(&virtualization); if (virtualization) log_info("Detected virtualization '%s'.", virtualization); + write_container_id(); + + log_info("Detected architecture '%s'.", architecture_to_string(uname_architecture())); + if (in_initrd()) log_info("Running in initial RAM disk."); - } else - log_debug(PACKAGE_STRING " running in user mode. (" SYSTEMD_FEATURES ")"); + /* Let's check whether /etc is already populated. We + * don't actually really check for that, but use + * /etc/machine-id as flag file. This allows container + * managers and installers to provision a couple of + * files already. If the container manager wants to + * provision the machine ID itself it should pass + * $container_uuid to PID 1.*/ + + empty_etc = access("/etc/machine-id", F_OK) < 0; + if (empty_etc) + log_info("Running with unpopulated /etc."); + } else { + _cleanup_free_ char *t; + + t = uid_to_name(getuid()); + log_debug(PACKAGE_STRING " running in %suser mode for user "UID_FMT"/%s. (" SYSTEMD_FEATURES ")", + arg_action == ACTION_TEST ? " test" : "", getuid(), t); + } if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) { - if (arg_show_status || plymouth_running()) + if (arg_show_status > 0 || plymouth_running()) status_welcome(); #ifdef HAVE_KMOD kmod_setup(); #endif hostname_setup(); - machine_id_setup(); + machine_id_setup(NULL); loopback_setup(); test_mtab(); test_usr(); - test_cgroups(); } if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0) @@ -1521,6 +1614,12 @@ int main(int argc, char *argv[]) { } } + if (arg_syscall_archs) { + r = enforce_syscall_archs(arg_syscall_archs); + if (r < 0) + goto finish; + } + if (arg_running_as == SYSTEMD_USER) { /* Become reaper of our children */ if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) { @@ -1530,37 +1629,55 @@ int main(int argc, char *argv[]) { } } - if (arg_running_as == SYSTEMD_SYSTEM) + if (arg_running_as == SYSTEMD_SYSTEM) { bump_rlimit_nofile(&saved_rlimit_nofile); - r = manager_new(arg_running_as, !!serialization, &m); + if (empty_etc) { + r = unit_file_preset_all(UNIT_FILE_SYSTEM, false, NULL, UNIT_FILE_PRESET_FULL, false, NULL, 0); + if (r < 0) + log_warning("Failed to populate /etc with preset unit settings, ignoring: %s", strerror(-r)); + else + log_info("Populated /etc with preset unit settings."); + } + } + + r = manager_new(arg_running_as, arg_action == ACTION_TEST, &m); if (r < 0) { log_error("Failed to allocate manager object: %s", strerror(-r)); goto finish; } m->confirm_spawn = arg_confirm_spawn; + m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec; m->default_std_output = arg_default_std_output; m->default_std_error = arg_default_std_error; + m->default_restart_usec = arg_default_restart_usec; + m->default_timeout_start_usec = arg_default_timeout_start_usec; + m->default_timeout_stop_usec = arg_default_timeout_stop_usec; + m->default_start_limit_interval = arg_default_start_limit_interval; + m->default_start_limit_burst = arg_default_start_limit_burst; + m->default_cpu_accounting = arg_default_cpu_accounting; + m->default_blockio_accounting = arg_default_blockio_accounting; + m->default_memory_accounting = arg_default_memory_accounting; m->runtime_watchdog = arg_runtime_watchdog; m->shutdown_watchdog = arg_shutdown_watchdog; m->userspace_timestamp = userspace_timestamp; m->kernel_timestamp = kernel_timestamp; m->initrd_timestamp = initrd_timestamp; + m->security_start_timestamp = security_start_timestamp; + m->security_finish_timestamp = security_finish_timestamp; manager_set_default_rlimits(m, arg_default_rlimit); - - if (arg_default_environment) - manager_environment_add(m, arg_default_environment); - + manager_environment_add(m, NULL, arg_default_environment); manager_set_show_status(m, arg_show_status); + manager_set_first_boot(m, empty_etc); /* Remember whether we should queue the default job */ - queue_default_job = !serialization || arg_switched_root; + queue_default_job = !arg_serialization || arg_switched_root; before_startup = now(CLOCK_MONOTONIC); - r = manager_startup(m, serialization, fds); + r = manager_startup(m, arg_serialization, fds); if (r < 0) log_error("Failed to fully start up daemon: %s", strerror(-r)); @@ -1569,25 +1686,22 @@ int main(int argc, char *argv[]) { fdset_free(fds); fds = NULL; - if (serialization) { - fclose(serialization); - serialization = NULL; + if (arg_serialization) { + fclose(arg_serialization); + arg_serialization = NULL; } if (queue_default_job) { - DBusError error; + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; Unit *target = NULL; Job *default_unit_job; - dbus_error_init(&error); - log_debug("Activating default unit: %s", arg_default_unit); r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); - if (r < 0) { - log_error("Failed to load default target: %s", bus_error(&error, r)); - dbus_error_free(&error); - } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) + if (r < 0) + log_error("Failed to load default target: %s", bus_error_message(&error, r)); + else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) log_error("Failed to load default target: %s", strerror(-target->load_error)); else if (target->load_state == UNIT_MASKED) log_error("Default target masked."); @@ -1597,8 +1711,7 @@ int main(int argc, char *argv[]) { r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); if (r < 0) { - log_error("Failed to load rescue target: %s", bus_error(&error, r)); - dbus_error_free(&error); + log_error("Failed to load rescue target: %s", bus_error_message(&error, r)); goto finish; } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) { log_error("Failed to load rescue target: %s", strerror(-target->load_error)); @@ -1618,18 +1731,15 @@ int main(int argc, char *argv[]) { r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job); if (r == -EPERM) { - log_debug("Default target could not be isolated, starting instead: %s", bus_error(&error, r)); - dbus_error_free(&error); + log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job); if (r < 0) { - log_error("Failed to start default target: %s", bus_error(&error, r)); - dbus_error_free(&error); + log_error("Failed to start default target: %s", bus_error_message(&error, r)); goto finish; } } else if (r < 0) { - log_error("Failed to isolate default target: %s", bus_error(&error, r)); - dbus_error_free(&error); + log_error("Failed to isolate default target: %s", bus_error_message(&error, r)); goto finish; } @@ -1671,7 +1781,7 @@ int main(int argc, char *argv[]) { case MANAGER_REEXECUTE: - if (prepare_reexecute(m, &serialization, &fds, false) < 0) + if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) goto finish; reexecute = true; @@ -1685,7 +1795,7 @@ int main(int argc, char *argv[]) { m->switch_root = m->switch_root_init = NULL; if (!switch_root_init) - if (prepare_reexecute(m, &serialization, &fds, true) < 0) + if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) goto finish; reexecute = true; @@ -1716,21 +1826,35 @@ int main(int argc, char *argv[]) { } finish: - if (m) + pager_close(); + + if (m) { manager_free(m); + m = NULL; + } - for (j = 0; j < RLIMIT_NLIMITS; j++) + for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) { free(arg_default_rlimit[j]); + arg_default_rlimit[j] = NULL; + } free(arg_default_unit); + arg_default_unit = NULL; + free_join_controllers(); - dbus_shutdown(); + strv_free(arg_default_environment); + arg_default_environment = NULL; + + set_free(arg_syscall_archs); + arg_syscall_archs = NULL; + label_finish(); if (reexecute) { const char **args; unsigned i, args_size; + sigset_t ss; /* Close and disarm the watchdog, so that the new * instance can reinitialize it, but doesn't get @@ -1748,7 +1872,7 @@ finish: * initrd, but don't wait for them, so that we * can handle the SIGCHLD for them after * deserializing. */ - broadcast_signal(SIGTERM, false); + broadcast_signal(SIGTERM, false, true); /* And switch root */ r = switch_root(switch_root_dir); @@ -1767,10 +1891,10 @@ finish: * this only if the user didn't specify an * explicit init to spawn. */ - assert(serialization); + assert(arg_serialization); assert(fds); - snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); + snprintf(sfd, sizeof(sfd), "%i", fileno(arg_serialization)); char_array_0(sfd); i = 0; @@ -1796,9 +1920,9 @@ finish: * getopt() in argv[], and some cleanups in envp[], * but let's hope that doesn't matter.) */ - if (serialization) { - fclose(serialization); - serialization = NULL; + if (arg_serialization) { + fclose(arg_serialization); + arg_serialization = NULL; } if (fds) { @@ -1809,11 +1933,18 @@ finish: /* Reopen the console */ make_console_stdio(); - for (j = 1, i = 1; j < argc; j++) + for (j = 1, i = 1; j < (unsigned) argc; j++) args[i++] = argv[j]; args[i++] = NULL; assert(i <= args_size); + /* reenable any blocked signals, especially important + * if we switch from initial ramdisk to init=... */ + reset_all_signal_handlers(); + + assert_se(sigemptyset(&ss) == 0); + assert_se(sigprocmask(SIG_SETMASK, &ss, NULL) == 0); + if (switch_root_init) { args[0] = switch_root_init; execv(args[0], (char* const*) args); @@ -1834,22 +1965,64 @@ finish: log_warning("Failed to execute /sbin/init, giving up: %m"); } - if (serialization) - fclose(serialization); + if (arg_serialization) { + fclose(arg_serialization); + arg_serialization = NULL; + } - if (fds) + if (fds) { fdset_free(fds); + fds = NULL; + } + +#ifdef HAVE_VALGRIND_VALGRIND_H + /* If we are PID 1 and running under valgrind, then let's exit + * here explicitly. valgrind will only generate nice output on + * exit(), not on exec(), hence let's do the former not the + * latter here. */ + if (getpid() == 1 && RUNNING_ON_VALGRIND) + return 0; +#endif if (shutdown_verb) { - const char * command_line[] = { + char log_level[DECIMAL_STR_MAX(int) + 1]; + const char* command_line[9] = { SYSTEMD_SHUTDOWN_BINARY_PATH, shutdown_verb, - NULL + "--log-level", log_level, + "--log-target", }; - char **env_block; + unsigned pos = 5; + _cleanup_strv_free_ char **env_block = NULL; + + assert(command_line[pos] == NULL); + env_block = strv_copy(environ); + + snprintf(log_level, sizeof(log_level), "%d", log_get_max_level()); + + switch (log_get_target()) { + case LOG_TARGET_KMSG: + case LOG_TARGET_JOURNAL_OR_KMSG: + case LOG_TARGET_SYSLOG_OR_KMSG: + command_line[pos++] = "kmsg"; + break; + + case LOG_TARGET_CONSOLE: + default: + command_line[pos++] = "console"; + break; + }; + + if (log_get_show_color()) + command_line[pos++] = "--log-color"; + + if (log_get_show_location()) + command_line[pos++] = "--log-location"; + + assert(pos < ELEMENTSOF(command_line)); if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { - char e[32]; + char *e; /* If we reboot let's set the shutdown * watchdog and tell the shutdown binary to @@ -1857,15 +2030,11 @@ finish: watchdog_set_timeout(&arg_shutdown_watchdog); watchdog_close(false); - /* Tell the binary how often to ping */ - snprintf(e, sizeof(e), "WATCHDOG_USEC=%llu", (unsigned long long) arg_shutdown_watchdog); - char_array_0(e); - - env_block = strv_append(environ, e); - } else { - env_block = strv_copy(environ); + /* Tell the binary how often to ping, ignore failure */ + if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) + strv_push(&env_block, e); + } else watchdog_close(true); - } /* Avoid the creation of new processes forked by the * kernel; at this point, we will not listen to the @@ -1874,8 +2043,8 @@ finish: cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); - free(env_block); - log_error("Failed to execute shutdown binary, freezing: %m"); + log_error("Failed to execute shutdown binary, %s: %m", + getpid() == 1 ? "freezing" : "quitting"); } if (getpid() == 1)