mount-setup.c \
mount-setup.h \
hostname-setup.c \
- hostname-setup.h
+ hostname-setup.h \
+ utmp-wtmp.c \
+ utmp-wtmp.h
systemd_SOURCES = \
$(COMMON_SOURCES) \
#include "load-fragment.h"
#include "load-dropin.h"
-static int automount_init(Unit *u, UnitLoadState *new_state) {
- int r;
- Automount *a = AUTOMOUNT(u);
+static const UnitActiveState state_translation_table[_AUTOMOUNT_STATE_MAX] = {
+ [AUTOMOUNT_DEAD] = UNIT_INACTIVE,
+ [AUTOMOUNT_WAITING] = UNIT_ACTIVE,
+ [AUTOMOUNT_RUNNING] = UNIT_ACTIVE,
+ [AUTOMOUNT_MAINTAINANCE] = UNIT_INACTIVE,
+};
- assert(a);
+static const char* const state_string_table[_AUTOMOUNT_STATE_MAX] = {
+ [AUTOMOUNT_DEAD] = "dead",
+ [AUTOMOUNT_WAITING] = "waiting",
+ [AUTOMOUNT_RUNNING] = "running",
+ [AUTOMOUNT_MAINTAINANCE] = "maintainance"
+};
- exec_context_init(&a->exec_context);
+static void automount_init(Unit *u) {
+ Automount *a = AUTOMOUNT(u);
- /* Load a .automount file */
- if ((r = unit_load_fragment(u, new_state)) < 0)
- return r;
+ a->state = 0;
+ a->mount = NULL;
+}
- if (*new_state == UNIT_STUB)
- *new_state = UNIT_LOADED;
+static int automount_load(Unit *u) {
+ int r;
+ Automount *a = AUTOMOUNT(u);
- /* Load drop-in directory data */
- if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
- return r;
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
- if (*new_state == UNIT_LOADED) {
+ /* Load a .automount file */
+ if ((r = unit_load_fragment_and_dropin_optional(u)) < 0)
+ return r;
- if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(a->mount))) < 0)
- return r;
+ if (u->meta.load_state == UNIT_LOADED) {
- if ((r = unit_add_exec_dependencies(u, &a->exec_context)) < 0)
+ if ((r = unit_load_related_unit(u, ".mount", (Unit**) &a->mount)) < 0)
return r;
- if ((r = unit_add_default_cgroup(u)) < 0)
+ if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(a->mount))) < 0)
return r;
}
}
static void automount_done(Unit *u) {
- Automount *d = AUTOMOUNT(u);
+ Automount *a = AUTOMOUNT(u);
+
+ assert(a);
- assert(d);
- free(d->path);
+ a->mount = NULL;
}
static void automount_dump(Unit *u, FILE *f, const char *prefix) {
-
- static const char* const state_table[_AUTOMOUNT_STATE_MAX] = {
- [AUTOMOUNT_DEAD] = "dead",
- [AUTOMOUNT_START_PRE] = "start-pre",
- [AUTOMOUNT_START_POST] = "start-post",
- [AUTOMOUNT_WAITING] = "waiting",
- [AUTOMOUNT_RUNNING] = "running",
- [AUTOMOUNT_STOP_PRE] = "stop-pre",
- [AUTOMOUNT_STOP_POST] = "stop-post",
- [AUTOMOUNT_MAINTAINANCE] = "maintainance"
- };
-
- static const char* const command_table[_AUTOMOUNT_EXEC_MAX] = {
- [AUTOMOUNT_EXEC_START_PRE] = "StartPre",
- [AUTOMOUNT_EXEC_START_POST] = "StartPost",
- [AUTOMOUNT_EXEC_STOP_PRE] = "StopPre",
- [AUTOMOUNT_EXEC_STOP_POST] = "StopPost"
- };
-
- AutomountExecCommand c;
Automount *s = AUTOMOUNT(u);
assert(s);
fprintf(f,
- "%sAutomount State: %s\n"
- "%sPath: %s\n",
- prefix, state_table[s->state],
- prefix, s->path);
-
- exec_context_dump(&s->exec_context, f, prefix);
-
- for (c = 0; c < _AUTOMOUNT_EXEC_MAX; c++) {
- ExecCommand *i;
-
- LIST_FOREACH(command, i, s->exec_command[c])
- fprintf(f, "%s%s: %s\n", prefix, command_table[c], i->path);
- }
+ "%sAutomount State: %s\n",
+ prefix, state_string_table[s->state]);
}
static UnitActiveState automount_active_state(Unit *u) {
- static const UnitActiveState table[_AUTOMOUNT_STATE_MAX] = {
- [AUTOMOUNT_DEAD] = UNIT_INACTIVE,
- [AUTOMOUNT_START_PRE] = UNIT_ACTIVATING,
- [AUTOMOUNT_START_POST] = UNIT_ACTIVATING,
- [AUTOMOUNT_WAITING] = UNIT_ACTIVE,
- [AUTOMOUNT_RUNNING] = UNIT_ACTIVE,
- [AUTOMOUNT_STOP_PRE] = UNIT_DEACTIVATING,
- [AUTOMOUNT_STOP_POST] = UNIT_DEACTIVATING,
- [AUTOMOUNT_MAINTAINANCE] = UNIT_INACTIVE,
- };
-
- return table[AUTOMOUNT(u)->state];
+ return state_translation_table[AUTOMOUNT(u)->state];
}
const UnitVTable automount_vtable = {
.suffix = ".mount",
+ .no_alias = true,
+
.init = automount_init,
+ .load = automount_load,
.done = automount_done,
.dump = automount_dump,
typedef enum AutomountState {
AUTOMOUNT_DEAD,
- AUTOMOUNT_START_PRE,
- AUTOMOUNT_START_POST,
AUTOMOUNT_WAITING,
AUTOMOUNT_RUNNING,
- AUTOMOUNT_STOP_PRE,
- AUTOMOUNT_STOP_POST,
AUTOMOUNT_MAINTAINANCE,
- _AUTOMOUNT_STATE_MAX
+ _AUTOMOUNT_STATE_MAX,
+ _AUTOMOUNT_STATE_INVALID = -1
} AutomountState;
-typedef enum AutomountExecCommand {
- AUTOMOUNT_EXEC_START_PRE,
- AUTOMOUNT_EXEC_START_POST,
- AUTOMOUNT_EXEC_STOP_PRE,
- AUTOMOUNT_EXEC_STOP_POST,
- _AUTOMOUNT_EXEC_MAX
-} AutomountExecCommand;
-
struct Automount {
Meta meta;
AutomountState state;
- char *path;
-
- ExecCommand* exec_command[_AUTOMOUNT_EXEC_MAX];
- ExecContext exec_context;
-
- pid_t contol_pid;
Mount *mount;
};
Device *d = DEVICE(u);
assert(d);
+
free(d->sysfs);
+ d->sysfs = NULL;
+}
+
+static void device_init(Unit *u) {
+ Device *d = DEVICE(u);
+
+ assert(d);
+ assert(u->meta.load_state == UNIT_STUB);
+
+ d->state = 0;
}
static void device_set_state(Device *d, DeviceState state) {
DeviceState old_state;
assert(d);
- if (state == d->state)
- return;
-
old_state = d->state;
d->state = state;
- log_debug("%s changed %s → %s", unit_id(UNIT(d)), state_string_table[old_state], state_string_table[state]);
+ if (state != old_state)
+ log_debug("%s changed %s → %s", unit_id(UNIT(d)), state_string_table[old_state], state_string_table[state]);
unit_notify(UNIT(d), state_translation_table[old_state], state_translation_table[state]);
}
if ((r = device_add_escaped_name(u, sysfs, true)) < 0)
goto fail;
+ unit_add_to_load_queue(u);
+ } else
+ delete = false;
+
+ if (!(DEVICE(u)->sysfs))
if (!(DEVICE(u)->sysfs = strdup(sysfs))) {
r = -ENOMEM;
goto fail;
}
- unit_add_to_load_queue(u);
- } else
- delete = false;
-
if (dn)
if ((r = device_add_escaped_name(u, dn, true)) < 0)
goto fail;
const UnitVTable device_vtable = {
.suffix = ".device",
- .init = unit_load_fragment_and_dropin_optional,
+ .init = device_init,
+ .load = unit_load_fragment_and_dropin_optional,
.done = device_done,
.coldplug = device_coldplug,
assert(lvalue);
assert(rvalue);
+ if (UNIT_VTABLE(u)->refuse_requires &&
+ (d == UNIT_REQUIRES ||
+ d == UNIT_SOFT_REQUIRES ||
+ d == UNIT_REQUISITE ||
+ d == UNIT_SOFT_REQUISITE)) {
+ log_error("[%s:%u] Dependency of type %s not acceptable for this unit type.", filename, line, lvalue);
+ return -EBADMSG;
+ }
+
FOREACH_WORD(w, l, rvalue, state) {
char *t;
int r;
return 0;
}
-static int load_from_path(Unit *u, const char *path, UnitLoadState *new_state) {
+static void dump_items(FILE *f, const ConfigItem *items) {
+ const ConfigItem *i;
+ const char *prev_section = NULL;
+ bool not_first = false;
+
+ struct {
+ ConfigParserCallback callback;
+ const char *rvalue;
+ } table[] = {
+ { config_parse_int, "INTEGER" },
+ { config_parse_unsigned, "UNSIGNED" },
+ { config_parse_size, "SIZE" },
+ { config_parse_bool, "BOOLEAN" },
+ { config_parse_string, "STRING" },
+ { config_parse_path, "PATH" },
+ { config_parse_strv, "STRING [...]" },
+ { config_parse_nice, "NICE" },
+ { config_parse_oom_adjust, "OOMADJUST" },
+ { config_parse_io_class, "IOCLASS" },
+ { config_parse_io_priority, "IOPRIORITY" },
+ { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" },
+ { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" },
+ { config_parse_cpu_affinity, "CPUAFFINITY" },
+ { config_parse_mode, "MODE" },
+ { config_parse_output, "OUTPUT" },
+ { config_parse_input, "INPUT" },
+ { config_parse_facility, "FACILITY" },
+ { config_parse_level, "LEVEL" },
+ { config_parse_capabilities, "CAPABILITIES" },
+ { config_parse_secure_bits, "SECUREBITS" },
+ { config_parse_bounding_set, "BOUNDINGSET" },
+ { config_parse_timer_slack_ns, "TIMERSLACK" },
+ { config_parse_limit, "LIMIT" },
+ { config_parse_cgroup, "CGROUP [...]" },
+ { config_parse_deps, "UNIT [...]" },
+ { config_parse_names, "UNIT [...]" },
+ { config_parse_exec, "PATH [ARGUMENT [...]]" },
+ { config_parse_service_type, "SERVICETYPE" },
+ { config_parse_service_restart, "SERVICERESTART" },
+ { config_parse_sysv_priority, "SYSVPRIORITY" },
+ { config_parse_kill_mode, "KILLMODE" },
+ { config_parse_listen, "SOCKET [...]" },
+ { config_parse_socket_bind, "SOCKETBIND" },
+ { config_parse_bindtodevice, "NETWORKINTERFACE" }
+ };
+
+ assert(f);
+ assert(items);
+
+ for (i = items; i->lvalue; i++) {
+ unsigned j;
+ const char *rvalue = "OTHER";
+
+ if (!streq_ptr(i->section, prev_section)) {
+ if (!not_first)
+ not_first = true;
+ else
+ fputc('\n', f);
+
+ fprintf(f, "[%s]\n", i->section);
+ prev_section = i->section;
+ }
+
+ for (j = 0; j < ELEMENTSOF(table); j++)
+ if (i->parse == table[j].callback) {
+ rvalue = table[j].rvalue;
+ break;
+ }
+
+ fprintf(f, "%s=%s\n", i->lvalue, rvalue);
+ }
+}
+
+static int load_from_path(Unit *u, const char *path) {
static const char* const section_table[_UNIT_TYPE_MAX] = {
[UNIT_SERVICE] = "Service",
{ "KillMode", config_parse_kill_mode, &u->socket.kill_mode, "Socket" },
EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
- EXEC_CONTEXT_CONFIG_ITEMS(u->automount.exec_context, "Automount"),
+ { "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" },
+ { "Where", config_parse_path, &u->mount.where, "Mount" },
+ { "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" },
+ { "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" },
+ { "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" },
+ { "KillMode", config_parse_kill_mode, &u->mount.kill_mode, "Mount" },
+ EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"),
{ NULL, NULL, NULL, NULL }
};
char *filename = NULL, *id = NULL;
Unit *merged;
+ if (!u) {
+ /* Dirty dirty hack. */
+ dump_items((FILE*) path, items);
+ return 0;
+ }
+
assert(u);
- assert(new_state);
+ assert(path);
sections[0] = "Meta";
sections[1] = section_table[u->meta.type];
goto finish;
if (merged != u) {
- *new_state = UNIT_MERGED;
+ u->meta.load_state = UNIT_MERGED;
r = 0;
goto finish;
}
u->meta.fragment_path = filename;
filename = NULL;
- *new_state = UNIT_LOADED;
+ u->meta.load_state = UNIT_LOADED;
r = 0;
finish:
return r;
}
-int unit_load_fragment(Unit *u, UnitLoadState *new_state) {
+int unit_load_fragment(Unit *u) {
int r;
assert(u);
- assert(new_state);
- assert(*new_state == UNIT_STUB);
if (u->meta.fragment_path) {
- if ((r = load_from_path(u, u->meta.fragment_path, new_state)) < 0)
+ if ((r = load_from_path(u, u->meta.fragment_path)) < 0)
return r;
} else {
/* Try to find the unit under its id */
if ((t = unit_id(u)))
- if ((r = load_from_path(u, t, new_state)) < 0)
+ if ((r = load_from_path(u, t)) < 0)
return r;
/* Try to find an alias we can load this with */
- if (*new_state == UNIT_STUB)
+ if (u->meta.load_state == UNIT_STUB)
SET_FOREACH(t, u->meta.names, i) {
if (unit_id(u) == t)
continue;
- if ((r = load_from_path(u, t, new_state)) < 0)
+ if ((r = load_from_path(u, t)) < 0)
return r;
- if (*new_state != UNIT_STUB)
+ if (u->meta.load_state != UNIT_STUB)
break;
}
}
return 0;
}
+
+void unit_dump_config_items(FILE *f) {
+ /* OK, this wins a prize for extreme ugliness. */
+
+ load_from_path(NULL, (const void*) f);
+}
/* Read service data from .desktop file style configuration fragments */
-int unit_load_fragment(Unit *u, UnitLoadState *new_state);
+int unit_load_fragment(Unit *u);
+
+void unit_dump_config_items(FILE *f);
#endif
static enum {
ACTION_RUN,
ACTION_HELP,
- ACTION_TEST
+ ACTION_TEST,
+ ACTION_DUMP_CONFIGURATION_ITEMS
} action = ACTION_RUN;
static char *default_unit = NULL;
ARG_LOG_TARGET,
ARG_DEFAULT,
ARG_RUNNING_AS,
- ARG_TEST
+ ARG_TEST,
+ ARG_DUMP_CONFIGURATION_ITEMS
};
static const struct option options[] = {
{ "running-as", required_argument, NULL, ARG_RUNNING_AS },
{ "test", no_argument, NULL, ARG_TEST },
{ "help", no_argument, NULL, 'h' },
+ { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
{ NULL, 0, NULL, 0 }
};
action = ACTION_TEST;
break;
+ case ARG_DUMP_CONFIGURATION_ITEMS:
+ action = ACTION_DUMP_CONFIGURATION_ITEMS;
+ break;
+
case 'h':
action = ACTION_HELP;
break;
static int help(void) {
printf("%s [options]\n\n"
- " -h --help Show this help\n"
- " --default=UNIT Set default unit\n"
- " --log-level=LEVEL Set log level\n"
- " --log-target=TARGET Set log target (console, syslog, kmsg)\n"
- " --running-as=AS Set running as (init, system, session)\n"
- " --test Determine startup sequence, dump it and exit\n",
+ " -h --help Show this help\n"
+ " --default=UNIT Set default unit\n"
+ " --log-level=LEVEL Set log level\n"
+ " --log-target=TARGET Set log target (console, syslog, kmsg)\n"
+ " --running-as=AS Set running as (init, system, session)\n"
+ " --test Determine startup sequence, dump it and exit\n"
+ " --dump-configuration-items Dump understood unit configuration items\n",
__progname);
return 0;
if (action == ACTION_HELP) {
retval = help();
goto finish;
+ } else if (action == ACTION_DUMP_CONFIGURATION_ITEMS) {
+ unit_dump_config_items(stdout);
+ retval = 0;
+ goto finish;
}
assert_se(action == ACTION_RUN || action == ACTION_TEST);
/* Set up PATH unless it is already set */
- setenv("PATH", "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", false);
+ setenv("PATH",
+ "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
+ running_as == MANAGER_INIT);
/* Move out of the way, so that we won't block unmounts */
assert_se(chdir("/") == 0);
log_debug("systemd running in %s mode.", manager_running_as_to_string(running_as));
if (running_as == MANAGER_INIT)
- if (hostname_setup() < 0)
- goto finish;
+ hostname_setup();
if ((r = manager_new(running_as, &m)) < 0) {
log_error("Failed to allocate manager object: %s", strerror(-r));
#include <sys/signalfd.h>
#include <sys/wait.h>
#include <unistd.h>
+#include <utmpx.h>
#include <sys/poll.h>
#include <sys/reboot.h>
#include <sys/ioctl.h>
#include "ratelimit.h"
#include "cgroup.h"
#include "mount-setup.h"
+#include "utmp-wtmp.h"
static int manager_setup_signals(Manager *m) {
sigset_t mask;
if (!(m = new0(Manager, 1)))
return -ENOMEM;
+ m->boot_timestamp = now(CLOCK_REALTIME);
+
m->running_as = running_as;
m->signal_watch.fd = m->mount_watch.fd = m->udev_watch.fd = m->epoll_fd = -1;
m->current_job_id = 1; /* start as id #1, so that we can leave #0 around as "null-like" value */
return r;
}
+ /* Now that the initial devices are available, let's see if we
+ * can write the utmp file */
+ manager_write_utmp_reboot(m);
+
return 0;
}
return 0;
}
+static bool manager_utmp_good(Manager *m) {
+ int r;
+
+ assert(m);
+
+ if ((r = mount_path_is_mounted(m, _PATH_UTMPX)) <= 0) {
+
+ if (r < 0)
+ log_warning("Failed to determine whether " _PATH_UTMPX " is mounted: %s", strerror(-r));
+
+ return false;
+ }
+
+ return true;
+}
+
+void manager_write_utmp_reboot(Manager *m) {
+ int r;
+
+ assert(m);
+
+ if (m->utmp_reboot_written)
+ return;
+
+ if (m->running_as != MANAGER_INIT)
+ return;
+
+ if (!manager_utmp_good(m))
+ return;
+
+ if ((r = utmp_put_reboot(m->boot_timestamp)) < 0) {
+
+ if (r != -ENOENT && r != -EROFS)
+ log_warning("Failed to write utmp/wtmp: %s", strerror(-r));
+
+ return;
+ }
+
+ m->utmp_reboot_written = true;
+}
+
+void manager_write_utmp_runlevel(Manager *m, Unit *u) {
+ int runlevel, r;
+
+ assert(m);
+ assert(u);
+
+ if (u->meta.type != UNIT_TARGET)
+ return;
+
+ if (m->running_as != MANAGER_INIT)
+ return;
+
+ if (!manager_utmp_good(m))
+ return;
+
+ if ((runlevel = target_get_runlevel(TARGET(u))) <= 0)
+ return;
+
+ if ((r = utmp_put_runlevel(0, runlevel, 0)) < 0) {
+
+ if (r != -ENOENT && r != -EROFS)
+ log_warning("Failed to write utmp/wtmp: %s", strerror(-r));
+ }
+}
+
static const char* const manager_running_as_table[_MANAGER_RUNNING_AS_MAX] = {
[MANAGER_INIT] = "init",
[MANAGER_SYSTEM] = "system",
bool request_api_bus_dispatch:1;
bool request_system_bus_dispatch:1;
+ bool utmp_reboot_written:1;
+
Hashmap *watch_pids; /* pid => Unit object n:1 */
int epoll_fd;
Hashmap *cgroup_bondings; /* path string => CGroupBonding object 1:n */
char *cgroup_controller;
char *cgroup_hierarchy;
+
+ usec_t boot_timestamp;
};
int manager_new(ManagerRunningAs running_as, Manager **m);
const char *manager_running_as_to_string(ManagerRunningAs i);
ManagerRunningAs manager_running_as_from_string(const char *s);
+void manager_write_utmp_reboot(Manager *m);
+
+void manager_write_utmp_runlevel(Manager *m, Unit *t);
+
#endif
#include <stdio.h>
#include <mntent.h>
#include <sys/epoll.h>
-#include <sys/poll.h>
+#include <signal.h>
#include "unit.h"
#include "mount.h"
#include "load-fragment.h"
#include "load-dropin.h"
#include "log.h"
+#include "strv.h"
+#include "mount-setup.h"
static const UnitActiveState state_translation_table[_MOUNT_STATE_MAX] = {
[MOUNT_DEAD] = UNIT_INACTIVE,
[MOUNT_MOUNTING] = UNIT_ACTIVATING,
+ [MOUNT_MOUNTING_DONE] = UNIT_ACTIVE,
[MOUNT_MOUNTED] = UNIT_ACTIVE,
+ [MOUNT_REMOUNTING] = UNIT_ACTIVE_RELOADING,
[MOUNT_UNMOUNTING] = UNIT_DEACTIVATING,
+ [MOUNT_MOUNTING_SIGTERM] = UNIT_DEACTIVATING,
+ [MOUNT_MOUNTING_SIGKILL] = UNIT_DEACTIVATING,
+ [MOUNT_REMOUNTING_SIGTERM] = UNIT_ACTIVE_RELOADING,
+ [MOUNT_REMOUNTING_SIGKILL] = UNIT_ACTIVE_RELOADING,
+ [MOUNT_UNMOUNTING_SIGTERM] = UNIT_DEACTIVATING,
+ [MOUNT_UNMOUNTING_SIGKILL] = UNIT_DEACTIVATING,
[MOUNT_MAINTAINANCE] = UNIT_INACTIVE,
};
static const char* const state_string_table[_MOUNT_STATE_MAX] = {
[MOUNT_DEAD] = "dead",
[MOUNT_MOUNTING] = "mounting",
+ [MOUNT_MOUNTING_DONE] = "mounting-done",
[MOUNT_MOUNTED] = "mounted",
+ [MOUNT_REMOUNTING] = "remounting",
[MOUNT_UNMOUNTING] = "unmounting",
+ [MOUNT_MOUNTING_SIGTERM] = "mounting-sigterm",
+ [MOUNT_MOUNTING_SIGKILL] = "mounting-sigkill",
+ [MOUNT_REMOUNTING_SIGTERM] = "remounting-sigterm",
+ [MOUNT_REMOUNTING_SIGKILL] = "remounting-sigkill",
+ [MOUNT_UNMOUNTING_SIGTERM] = "unmounting-sigterm",
+ [MOUNT_UNMOUNTING_SIGKILL] = "unmounting-sigkill",
[MOUNT_MAINTAINANCE] = "maintainance"
};
+static void mount_parameters_done(MountParameters *p) {
+ assert(p);
+
+ free(p->what);
+ free(p->options);
+ free(p->fstype);
+
+ p->what = p->options = p->fstype = NULL;
+}
+
static void mount_done(Unit *u) {
Mount *m = MOUNT(u);
assert(m);
- free(m->what);
- free(m->where);
-}
-static void mount_set_state(Mount *m, MountState state) {
- MountState old_state;
- assert(m);
+ free(m->where);
+ m->where = NULL;
- if (state == m->state)
- return;
+ mount_parameters_done(&m->parameters_etc_fstab);
+ mount_parameters_done(&m->parameters_proc_self_mountinfo);
+ mount_parameters_done(&m->parameters_fragment);
- old_state = m->state;
- m->state = state;
+ exec_context_done(&m->exec_context);
+ exec_command_done_array(m->exec_command, _MOUNT_EXEC_COMMAND_MAX);
+ m->control_command = NULL;
- log_debug("%s changed %s → %s", unit_id(UNIT(m)), state_string_table[old_state], state_string_table[state]);
+ if (m->control_pid > 0) {
+ unit_unwatch_pid(u, m->control_pid);
+ m->control_pid = 0;
+ }
- unit_notify(UNIT(m), state_translation_table[old_state], state_translation_table[state]);
+ unit_unwatch_timer(u, &m->timer_watch);
}
-static int mount_coldplug(Unit *u) {
+static void mount_init(Unit *u) {
Mount *m = MOUNT(u);
- assert(m);
- assert(m->state == MOUNT_DEAD);
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
- if (m->from_proc_self_mountinfo)
- mount_set_state(m, MOUNT_MOUNTED);
+ m->state = 0;
+ m->from_etc_fstab = false;
+ m->from_proc_self_mountinfo = false;
+ m->from_fragment = false;
- return 0;
-}
+ m->is_mounted = false;
+ m->just_mounted = false;
+ m->just_changed = false;
-static void mount_dump(Unit *u, FILE *f, const char *prefix) {
- Mount *s = MOUNT(u);
+ m->timeout_usec = DEFAULT_TIMEOUT_USEC;
- assert(s);
+ zero(m->exec_command);
+ exec_context_init(&m->exec_context);
- fprintf(f,
- "%sMount State: %s\n"
- "%sWhere: %s\n"
- "%sWhat: %s\n"
- "%sFrom /etc/fstab: %s\n"
- "%sFrom /proc/self/mountinfo: %s\n",
- prefix, state_string_table[s->state],
- prefix, s->where,
- prefix, s->what,
- prefix, yes_no(s->from_etc_fstab),
- prefix, yes_no(s->from_proc_self_mountinfo));
-}
-
-static UnitActiveState mount_active_state(Unit *u) {
- assert(u);
-
- return state_translation_table[MOUNT(u)->state];
-}
+ m->kill_mode = 0;
-static void mount_shutdown(Manager *m) {
- assert(m);
+ m->control_pid = 0;
+ m->failure = false;
- if (m->proc_self_mountinfo)
- fclose(m->proc_self_mountinfo);
+ m->timer_watch.type = WATCH_INVALID;
}
static int mount_add_node_links(Mount *m) {
Unit *device;
char *e;
int r;
+ const char *what;
assert(m);
/* Adds in links to the device that this node is based on */
- if (!path_startswith(m->what, "/dev/"))
+ if (m->parameters_fragment.what)
+ what = m->parameters_fragment.what;
+ else if (m->parameters_etc_fstab.what)
+ what = m->parameters_etc_fstab.what;
+ else
+ /* We observe kernel mounts only while they are live,
+ * hence don't create any links for them */
+ return 0;
+
+ if (!path_startswith(what, "/dev/"))
return 0;
- if (!(e = unit_name_escape_path(m->what+1, ".device")))
+ if (!(e = unit_name_escape_path(what+1, ".device")))
return -ENOMEM;
r = manager_load_unit(UNIT(m)->meta.manager, e, &device);
if ((r = unit_add_dependency(UNIT(m), UNIT_REQUIRES, device)) < 0)
return r;
- if ((r = unit_add_dependency(device, UNIT_WANTS, UNIT(m))) < 0)
- return r;
+ if (UNIT(m)->meta.manager->running_as == MANAGER_INIT ||
+ UNIT(m)->meta.manager->running_as == MANAGER_SYSTEM)
+ if ((r = unit_add_dependency(device, UNIT_WANTS, UNIT(m))) < 0)
+ return r;
return 0;
}
Meta *other;
int r;
+ assert(m);
+
/* Adds in link to other mount points, that might lie below or
* above us in the hierarchy */
if (n == m)
continue;
+ if (m->meta.load_state != UNIT_LOADED)
+ continue;
+
if (path_startswith(m->where, n->where)) {
- if ((r = unit_add_dependency(UNIT(m), UNIT_AFTER, (Unit*) other)) < 0)
+ if ((r = unit_add_dependency(UNIT(m), UNIT_AFTER, UNIT(other))) < 0)
return r;
- if ((r = unit_add_dependency(UNIT(m), UNIT_REQUIRES, (Unit*) other)) < 0)
- return r;
+ if (n->from_etc_fstab || n->from_fragment)
+ if ((r = unit_add_dependency(UNIT(m), UNIT_REQUIRES, UNIT(other))) < 0)
+ return r;
- } else if (startswith(n->where, m->where)) {
+ } else if (path_startswith(n->where, m->where)) {
- if ((r = unit_add_dependency(UNIT(m), UNIT_BEFORE, (Unit*) other)) < 0)
+ if ((r = unit_add_dependency(UNIT(m), UNIT_BEFORE, UNIT(other))) < 0)
return r;
- if ((r = unit_add_dependency((Unit*) other, UNIT_REQUIRES, UNIT(m))) < 0)
- return r;
+ if (m->from_etc_fstab || m->from_fragment)
+ if ((r = unit_add_dependency(UNIT(other), UNIT_REQUIRES, UNIT(m))) < 0)
+ return r;
}
}
return 0;
}
-static int mount_add_one(Manager *m, const char *what, const char *where, bool live, bool set_flags) {
- char *e;
+static bool mount_test_option(const char *haystack, const char *needle) {
+ struct mntent me;
+
+ assert(needle);
+
+ /* Like glibc's hasmntopt(), but works on a string, not a
+ * struct mntent */
+
+ if (!haystack)
+ return false;
+
+ zero(me);
+ me.mnt_opts = (char*) haystack;
+
+ return !!hasmntopt(&me, needle);
+}
+
+static int mount_add_target_links(Mount *m) {
+ const char *target;
+ MountParameters *p;
+ Unit *u;
+ int r;
+
+ assert(m);
+
+ if (m->from_fragment)
+ p = &m->parameters_fragment;
+ else if (m->from_etc_fstab)
+ p = &m->parameters_etc_fstab;
+ else
+ return 0;
+
+ if (!p->fstype)
+ return 0;
+
+ if (mount_test_option(p->options, MNTOPT_NOAUTO))
+ return 0;
+
+ if (mount_test_option(p->options, "_netdev") ||
+ fstype_is_network(p->fstype))
+ target = SPECIAL_REMOTE_FS_TARGET;
+ else
+ target = SPECIAL_LOCAL_FS_TARGET;
+
+ if ((r = manager_load_unit(UNIT(m)->meta.manager, target, &u)) < 0)
+ return r;
+
+ if ((r = unit_add_dependency(u, UNIT_WANTS, UNIT(m))) < 0)
+ return r;
+
+ return unit_add_dependency(UNIT(m), UNIT_BEFORE, u);
+}
+
+static int mount_load(Unit *u) {
+ Mount *m = MOUNT(u);
+ int r;
+
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
+
+ if ((r = unit_load_fragment_and_dropin_optional(u)) < 0)
+ return r;
+
+ /* This is a new unit? Then let's add in some extras */
+ if (u->meta.load_state == UNIT_LOADED) {
+
+ /* Minor validity checking */
+ if ((m->parameters_fragment.options || m->parameters_fragment.fstype) && !m->parameters_fragment.what)
+ return -EBADMSG;
+
+ if (m->parameters_fragment.what)
+ m->from_fragment = true;
+
+ if ((r = mount_add_node_links(MOUNT(u))) < 0)
+ return r;
+
+ if ((r = mount_add_path_links(MOUNT(u))) < 0)
+ return r;
+
+ if ((r = mount_add_target_links(MOUNT(u))) < 0)
+ return r;
+
+ if ((r = unit_add_default_cgroup(u)) < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static void mount_set_state(Mount *m, MountState state) {
+ MountState old_state;
+ assert(m);
+
+ old_state = m->state;
+ m->state = state;
+
+ if (state != MOUNT_MOUNTING &&
+ state != MOUNT_MOUNTING_DONE &&
+ state != MOUNT_REMOUNTING &&
+ state != MOUNT_UNMOUNTING &&
+ state != MOUNT_MOUNTING_SIGTERM &&
+ state != MOUNT_MOUNTING_SIGKILL &&
+ state != MOUNT_UNMOUNTING_SIGTERM &&
+ state != MOUNT_UNMOUNTING_SIGKILL &&
+ state != MOUNT_REMOUNTING_SIGTERM &&
+ state != MOUNT_REMOUNTING_SIGKILL) {
+ unit_unwatch_timer(UNIT(m), &m->timer_watch);
+
+ if (m->control_pid > 0) {
+ unit_unwatch_pid(UNIT(m), m->control_pid);
+ m->control_pid = 0;
+ }
+
+ m->control_command = NULL;
+ }
+
+ if (state != old_state)
+ log_debug("%s changed %s → %s", unit_id(UNIT(m)), state_string_table[old_state], state_string_table[state]);
+
+ unit_notify(UNIT(m), state_translation_table[old_state], state_translation_table[state]);
+}
+
+static int mount_coldplug(Unit *u) {
+ Mount *m = MOUNT(u);
+
+ assert(m);
+ assert(m->state == MOUNT_DEAD);
+
+ if (m->from_proc_self_mountinfo)
+ mount_set_state(m, MOUNT_MOUNTED);
+
+ return 0;
+}
+
+static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
+ pid_t pid;
+ int r;
+
+ assert(m);
+ assert(c);
+ assert(_pid);
+
+ if ((r = unit_watch_timer(UNIT(m), m->timeout_usec, &m->timer_watch)) < 0)
+ goto fail;
+
+ if ((r = exec_spawn(c,
+ &m->exec_context,
+ NULL, 0,
+ true,
+ true,
+ UNIT(m)->meta.cgroup_bondings,
+ &pid)) < 0)
+ goto fail;
+
+ if ((r = unit_watch_pid(UNIT(m), pid)) < 0)
+ /* FIXME: we need to do something here */
+ goto fail;
+
+ *_pid = pid;
+
+ return 0;
+
+fail:
+ unit_unwatch_timer(UNIT(m), &m->timer_watch);
+
+ return r;
+}
+
+static void mount_dump(Unit *u, FILE *f, const char *prefix) {
+ Mount *m = MOUNT(u);
+ MountParameters *p;
+
+ assert(m);
+ assert(f);
+
+ if (m->from_proc_self_mountinfo)
+ p = &m->parameters_proc_self_mountinfo;
+ else if (m->from_fragment)
+ p = &m->parameters_fragment;
+ else
+ p = &m->parameters_etc_fstab;
+
+ fprintf(f,
+ "%sMount State: %s\n"
+ "%sWhere: %s\n"
+ "%sWhat: %s\n"
+ "%sFile System Type: %s\n"
+ "%sOptions: %s\n"
+ "%sFrom /etc/fstab: %s\n"
+ "%sFrom /proc/self/mountinfo: %s\n"
+ "%sFrom fragment: %s\n"
+ "%sKillMode: %s\n",
+ prefix, state_string_table[m->state],
+ prefix, m->where,
+ prefix, strna(p->what),
+ prefix, strna(p->fstype),
+ prefix, strna(p->options),
+ prefix, yes_no(m->from_etc_fstab),
+ prefix, yes_no(m->from_proc_self_mountinfo),
+ prefix, yes_no(m->from_fragment),
+ prefix, kill_mode_to_string(m->kill_mode));
+
+ if (m->control_pid > 0)
+ fprintf(f,
+ "%sControl PID: %llu\n",
+ prefix, (unsigned long long) m->control_pid);
+
+ exec_context_dump(&m->exec_context, f, prefix);
+}
+
+static void mount_enter_dead(Mount *m, bool success) {
+ assert(m);
+
+ if (!success)
+ m->failure = true;
+
+ mount_set_state(m, m->failure ? MOUNT_MAINTAINANCE : MOUNT_DEAD);
+}
+
+static void mount_enter_signal(Mount *m, MountState state, bool success) {
+ int r;
+
+ assert(m);
+
+ if (!success)
+ m->failure = true;
+
+ if (m->control_pid > 0) {
+ int sig;
+ bool sent = false;
+
+ sig = (state == MOUNT_MOUNTING_SIGTERM ||
+ state == MOUNT_UNMOUNTING_SIGTERM ||
+ state == MOUNT_REMOUNTING_SIGTERM) ? SIGTERM : SIGKILL;
+
+ if (m->kill_mode == KILL_CONTROL_GROUP) {
+
+ if ((r = cgroup_bonding_kill_list(UNIT(m)->meta.cgroup_bondings, sig)) < 0) {
+ if (r != -EAGAIN && r != -ESRCH)
+ goto fail;
+ } else
+ sent = true;
+ }
+
+ if (!sent)
+ if (kill(m->kill_mode == KILL_PROCESS ? m->control_pid : -m->control_pid, sig) < 0 && errno != ESRCH) {
+ r = -errno;
+ goto fail;
+ }
+ }
+
+ mount_set_state(m, state);
+
+ if (m->control_pid <= 0)
+ mount_enter_dead(m, true);
+
+ return;
+
+fail:
+ log_warning("%s failed to kill processes: %s", unit_id(UNIT(m)), strerror(-r));
+ mount_enter_dead(m, false);
+}
+
+static void mount_enter_mounted(Mount *m, bool success) {
+ assert(m);
+
+ if (!success)
+ m->failure = true;
+
+ mount_set_state(m, MOUNT_MOUNTED);
+}
+
+static void mount_enter_unmounting(Mount *m, bool success) {
+ ExecCommand *c;
+ int r;
+
+ assert(m);
+
+ if (!success)
+ m->failure = true;
+
+ m->control_command = c = m->exec_command + MOUNT_EXEC_UNMOUNT;
+
+ if ((r = exec_command_set(
+ c,
+ "/bin/umount",
+ m->where,
+ NULL)) < 0)
+ goto fail;
+
+ if ((r = mount_spawn(m, c, &m->control_pid)) < 0)
+ goto fail;
+
+ mount_set_state(m, MOUNT_UNMOUNTING);
+
+ return;
+
+fail:
+ log_warning("%s failed to run umount exectuable: %s", unit_id(UNIT(m)), strerror(-r));
+ mount_enter_mounted(m, false);
+}
+
+static void mount_enter_mounting(Mount *m, bool success) {
+ ExecCommand *c;
+ int r;
+
+ assert(m);
+
+ if (!success)
+ m->failure = true;
+
+ m->control_command = c = m->exec_command + MOUNT_EXEC_MOUNT;
+
+ if (m->from_fragment)
+ r = exec_command_set(
+ c,
+ "/bin/mount",
+ m->parameters_fragment.what,
+ m->where,
+ "-t", m->parameters_fragment.fstype,
+ "-o", m->parameters_fragment.options,
+ NULL);
+ else if (m->from_etc_fstab)
+ r = exec_command_set(
+ c,
+ "/bin/mount",
+ m->where,
+ NULL);
+ else
+ r = -ENOENT;
+
+ if (r < 0)
+ goto fail;
+
+ if ((r = mount_spawn(m, c, &m->control_pid)) < 0)
+ goto fail;
+
+ mount_set_state(m, MOUNT_MOUNTING);
+
+ return;
+
+fail:
+ log_warning("%s failed to run mount exectuable: %s", unit_id(UNIT(m)), strerror(-r));
+ mount_enter_dead(m, false);
+}
+
+static void mount_enter_mounting_done(Mount *m, bool success) {
+ assert(m);
+
+ if (!success)
+ m->failure = true;
+
+ mount_set_state(m, MOUNT_MOUNTING_DONE);
+}
+
+static void mount_enter_remounting(Mount *m, bool success) {
+ ExecCommand *c;
+ int r;
+
+ assert(m);
+
+ if (!success)
+ m->failure = true;
+
+ m->control_command = c = m->exec_command + MOUNT_EXEC_REMOUNT;
+
+ if (m->from_fragment) {
+ char *buf = NULL;
+ const char *o;
+
+ if (m->parameters_fragment.options) {
+ if (!(buf = strappend("remount,", m->parameters_fragment.options))) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ o = buf;
+ } else
+ o = "remount";
+
+ r = exec_command_set(
+ c,
+ "/bin/mount",
+ m->parameters_fragment.what,
+ m->where,
+ "-t", m->parameters_fragment.fstype,
+ "-o", o,
+ NULL);
+
+ free(buf);
+ } else if (m->from_etc_fstab)
+ r = exec_command_set(
+ c,
+ "/bin/mount",
+ m->where,
+ "-o", "remount",
+ NULL);
+ else
+ r = -ENOENT;
+
+ if (r < 0) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if ((r = mount_spawn(m, c, &m->control_pid)) < 0)
+ goto fail;
+
+ mount_set_state(m, MOUNT_REMOUNTING);
+
+ return;
+
+fail:
+ mount_enter_mounted(m, false);
+}
+
+static int mount_start(Unit *u) {
+ Mount *m = MOUNT(u);
+
+ assert(m);
+
+ /* We cannot fulfill this request right now, try again later
+ * please! */
+ if (m->state == MOUNT_UNMOUNTING ||
+ m->state == MOUNT_UNMOUNTING_SIGTERM ||
+ m->state == MOUNT_UNMOUNTING_SIGKILL)
+ return -EAGAIN;
+
+ /* Already on it! */
+ if (m->state == MOUNT_MOUNTING ||
+ m->state == MOUNT_MOUNTING_SIGTERM ||
+ m->state == MOUNT_MOUNTING_SIGKILL)
+ return 0;
+
+ assert(m->state == MOUNT_DEAD || m->state == MOUNT_MAINTAINANCE);
+
+ m->failure = false;
+
+ mount_enter_mounting(m, true);
+ return 0;
+}
+
+static int mount_stop(Unit *u) {
+ Mount *m = MOUNT(u);
+
+ assert(m);
+
+ /* Cann't do this right now. */
+ if (m->state == MOUNT_MOUNTING ||
+ m->state == MOUNT_MOUNTING_DONE ||
+ m->state == MOUNT_MOUNTING_SIGTERM ||
+ m->state == MOUNT_MOUNTING_SIGKILL ||
+ m->state == MOUNT_REMOUNTING ||
+ m->state == MOUNT_REMOUNTING_SIGTERM ||
+ m->state == MOUNT_REMOUNTING_SIGKILL)
+ return -EAGAIN;
+
+ /* Already on it */
+ if (m->state == MOUNT_UNMOUNTING ||
+ m->state == MOUNT_UNMOUNTING_SIGKILL ||
+ m->state == MOUNT_UNMOUNTING_SIGTERM)
+ return 0;
+
+ assert(m->state == MOUNT_MOUNTED);
+
+ mount_enter_unmounting(m, true);
+ return 0;
+}
+
+static int mount_reload(Unit *u) {
+ Mount *m = MOUNT(u);
+
+ assert(m);
+
+ if (m->state == MOUNT_MOUNTING_DONE)
+ return -EAGAIN;
+
+ assert(m->state == MOUNT_MOUNTED);
+
+ mount_enter_remounting(m, true);
+ return 0;
+}
+
+static UnitActiveState mount_active_state(Unit *u) {
+ assert(u);
+
+ return state_translation_table[MOUNT(u)->state];
+}
+
+static void mount_sigchld_event(Unit *u, pid_t pid, int code, int status) {
+ Mount *m = MOUNT(u);
+ bool success;
+
+ assert(m);
+ assert(pid >= 0);
+
+ success = code == CLD_EXITED && status == 0;
+ m->failure = m->failure || !success;
+
+ assert(m->control_pid == pid);
+ assert(m->control_command);
+
+ exec_status_fill(&m->control_command->exec_status, pid, code, status);
+ m->control_pid = 0;
+
+ log_debug("%s control process exited, code=%s status=%i", unit_id(u), sigchld_code_to_string(code), status);
+
+ /* Note that mount(8) returning and the kernel sending us a
+ * mount table change event might happen out-of-order. If an
+ * operation succeed we assume the kernel will follow soon too
+ * and already change into the resulting state. If it fails
+ * we check if the kernel still knows about the mount. and
+ * change state accordingly. */
+
+ switch (m->state) {
+
+ case MOUNT_MOUNTING:
+ case MOUNT_MOUNTING_DONE:
+ case MOUNT_MOUNTING_SIGKILL:
+ case MOUNT_MOUNTING_SIGTERM:
+ case MOUNT_REMOUNTING:
+ case MOUNT_REMOUNTING_SIGKILL:
+ case MOUNT_REMOUNTING_SIGTERM:
+
+ if (success && m->from_proc_self_mountinfo)
+ mount_enter_mounted(m, true);
+ else if (m->from_proc_self_mountinfo)
+ mount_enter_mounted(m, false);
+ else
+ mount_enter_dead(m, false);
+ break;
+
+ case MOUNT_UNMOUNTING:
+ case MOUNT_UNMOUNTING_SIGKILL:
+ case MOUNT_UNMOUNTING_SIGTERM:
+
+ if (success)
+ mount_enter_dead(m, true);
+ else if (m->from_proc_self_mountinfo)
+ mount_enter_mounted(m, false);
+ else
+ mount_enter_dead(m, false);
+ break;
+
+ default:
+ assert_not_reached("Uh, control process died at wrong time.");
+ }
+}
+
+static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
+ Mount *m = MOUNT(u);
+
+ assert(m);
+ assert(elapsed == 1);
+ assert(w == &m->timer_watch);
+
+ switch (m->state) {
+
+ case MOUNT_MOUNTING:
+ case MOUNT_MOUNTING_DONE:
+ log_warning("%s mounting timed out. Stopping.", unit_id(u));
+ mount_enter_signal(m, MOUNT_MOUNTING_SIGTERM, false);
+ break;
+
+ case MOUNT_REMOUNTING:
+ log_warning("%s remounting timed out. Stopping.", unit_id(u));
+ mount_enter_signal(m, MOUNT_REMOUNTING_SIGTERM, false);
+ break;
+
+ case MOUNT_UNMOUNTING:
+ log_warning("%s unmounting timed out. Stopping.", unit_id(u));
+ mount_enter_signal(m, MOUNT_UNMOUNTING_SIGTERM, false);
+ break;
+
+ case MOUNT_MOUNTING_SIGTERM:
+ log_warning("%s mounting timed out. Killing.", unit_id(u));
+ mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, false);
+ break;
+
+ case MOUNT_REMOUNTING_SIGTERM:
+ log_warning("%s remounting timed out. Killing.", unit_id(u));
+ mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, false);
+ break;
+
+ case MOUNT_UNMOUNTING_SIGTERM:
+ log_warning("%s unmounting timed out. Killing.", unit_id(u));
+ mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, false);
+ break;
+
+ case MOUNT_MOUNTING_SIGKILL:
+ case MOUNT_REMOUNTING_SIGKILL:
+ case MOUNT_UNMOUNTING_SIGKILL:
+ log_warning("%s mount process still around after SIGKILL. Ignoring.", unit_id(u));
+
+ if (m->from_proc_self_mountinfo)
+ mount_enter_mounted(m, false);
+ else
+ mount_enter_dead(m, false);
+ break;
+
+ default:
+ assert_not_reached("Timeout at wrong time.");
+ }
+}
+
+static int mount_add_one(
+ Manager *m,
+ const char *what,
+ const char *where,
+ const char *options,
+ const char *fstype,
+ bool from_proc_self_mountinfo,
+ bool set_flags) {
int r;
Unit *u;
bool delete;
+ char *e, *w = NULL, *o = NULL, *f = NULL;
+ MountParameters *mp;
assert(m);
assert(what);
assert(where);
+ assert(options);
+ assert(fstype);
+
+ assert(!set_flags || from_proc_self_mountinfo);
+
+ /* Ignore API mount points. They should never be referenced in
+ * dependencies ever. */
+ if (mount_point_is_api(where))
+ return 0;
/* probably some kind of swap, which we don't cover for now */
if (where[0] != '/')
if (r < 0)
goto fail;
- if (!(MOUNT(u)->what = strdup(what)) ||
- !(MOUNT(u)->where = strdup(where))) {
+ if (!(MOUNT(u)->where = strdup(where))) {
r = -ENOMEM;
goto fail;
}
free(e);
}
- if (set_flags)
- MOUNT(u)->still_exists = true;
+ if (!(w = strdup(what)) ||
+ !(o = strdup(options)) ||
+ !(f = strdup(fstype))) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (from_proc_self_mountinfo) {
+ mp = &MOUNT(u)->parameters_proc_self_mountinfo;
+
+ if (set_flags) {
+ MOUNT(u)->is_mounted = true;
+ MOUNT(u)->just_mounted = !MOUNT(u)->from_proc_self_mountinfo;
+ MOUNT(u)->just_changed = !streq_ptr(MOUNT(u)->parameters_proc_self_mountinfo.options, o);
+ }
- if (live) {
- if (set_flags)
- MOUNT(u)->just_created = !MOUNT(u)->from_proc_self_mountinfo;
MOUNT(u)->from_proc_self_mountinfo = true;
+
} else {
- if (set_flags)
- MOUNT(u)->just_created = !MOUNT(u)->from_etc_fstab;
+ mp = &MOUNT(u)->parameters_etc_fstab;
+
MOUNT(u)->from_etc_fstab = true;
}
- if ((r = mount_add_node_links(MOUNT(u))) < 0)
- goto fail;
+ free(mp->what);
+ mp->what = w;
- if ((r = mount_add_path_links(MOUNT(u))) < 0)
- goto fail;
+ free(mp->options);
+ mp->options = o;
+
+ free(mp->fstype);
+ mp->fstype = f;
unit_add_to_dbus_queue(u);
return 0;
fail:
+ free(w);
+ free(o);
+ free(f);
+
if (delete && u)
unit_free(u);
return strdup(p);
}
-static int mount_load_etc_fstab(Manager *m, bool set_flags) {
+static int mount_load_etc_fstab(Manager *m) {
FILE *f;
int r;
struct mntent* me;
if (where[0] == '/')
path_kill_slashes(where);
- r = mount_add_one(m, what, where, false, set_flags);
+ r = mount_add_one(m, what, where, me->mnt_opts, me->mnt_type, false, false);
free(what);
free(where);
static int mount_load_proc_self_mountinfo(Manager *m, bool set_flags) {
int r;
+ char *device, *path, *options, *fstype, *d, *p;
assert(m);
for (;;) {
int k;
- char *device, *path, *d, *p;
+
+ device = path = options = fstype = d = p = NULL;
if ((k = fscanf(m->proc_self_mountinfo,
"%*s " /* (1) mount id */
"%*s " /* (3) major:minor */
"%*s " /* (4) root */
"%ms " /* (5) mount point */
- "%*s" /* (6) mount options */
+ "%ms" /* (6) mount options */
"%*[^-]" /* (7) optional fields */
"- " /* (8) seperator */
- "%*s " /* (9) file system type */
+ "%ms " /* (9) file system type */
"%ms" /* (10) mount source */
"%*[^\n]", /* some rubbish at the end */
&path,
- &device)) != 2) {
+ &options,
+ &fstype,
+ &device)) != 4) {
if (k == EOF)
break;
- return -EBADMSG;
+ r = -EBADMSG;
+ goto finish;
}
- if (!(d = cunescape(device))) {
- free(device);
- free(path);
- return -ENOMEM;
+ if (!(d = cunescape(device)) ||
+ !(p = cunescape(path))) {
+ r = -ENOMEM;
+ goto finish;
}
- free(device);
- if (!(p = cunescape(path))) {
- free(d);
- free(path);
- return -ENOMEM;
- }
- free(path);
+ if ((r = mount_add_one(m, d, p, options, fstype, true, set_flags)) < 0)
+ goto finish;
- r = mount_add_one(m, d, p, true, set_flags);
+ free(device);
+ free(path);
+ free(options);
+ free(fstype);
free(d);
free(p);
-
- if (r < 0)
- return r;
}
- return 0;
+ r = 0;
+
+finish:
+ free(device);
+ free(path);
+ free(options);
+ free(fstype);
+ free(d);
+ free(p);
+
+ return r;
+}
+
+static void mount_shutdown(Manager *m) {
+ assert(m);
+
+ if (m->proc_self_mountinfo)
+ fclose(m->proc_self_mountinfo);
}
static int mount_enumerate(Manager *m) {
if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->mount_watch.fd, &ev) < 0)
return -errno;
- if ((r = mount_load_etc_fstab(m, false)) < 0)
+ if ((r = mount_load_etc_fstab(m)) < 0)
goto fail;
if ((r = mount_load_proc_self_mountinfo(m, false)) < 0)
if ((r = mount_load_proc_self_mountinfo(m, true)) < 0) {
log_error("Failed to reread /proc/self/mountinfo: %s", strerror(-errno));
+
+ /* Reset flags, just in case, for later calls */
+ LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_MOUNT]) {
+ Mount *mount = (Mount*) meta;
+
+ mount->is_mounted = mount->just_mounted = mount->just_changed = false;
+ }
+
return;
}
LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_MOUNT]) {
Mount *mount = (Mount*) meta;
- if (mount->just_created && mount->state == MOUNT_DEAD)
- mount_set_state(mount, MOUNT_MOUNTED);
- else if (!mount->still_exists && mount->state == MOUNT_MOUNTED) {
- mount_set_state(mount, MOUNT_DEAD);
+ if (!mount->is_mounted) {
+ /* This has just been unmounted. */
+
mount->from_proc_self_mountinfo = false;
+
+ switch (mount->state) {
+
+ case MOUNT_MOUNTED:
+ mount_enter_dead(mount, true);
+ break;
+
+ default:
+ mount_set_state(mount, mount->state);
+ break;
+
+ }
+
+ } else if (mount->just_mounted || mount->just_changed) {
+
+ /* New or changed entrymount */
+
+ switch (mount->state) {
+
+ case MOUNT_DEAD:
+ case MOUNT_MAINTAINANCE:
+ mount_enter_mounted(mount, true);
+ break;
+
+ case MOUNT_MOUNTING:
+ mount_enter_mounting_done(mount, true);
+ break;
+
+ default:
+ /* Nothing really changed, but let's
+ * issue an notification call
+ * nonetheless, in case somebody is
+ * waiting for this. (e.g. file system
+ * ro/rw remounts.) */
+ mount_set_state(mount, mount->state);
+ break;
+ }
+ }
+
+ /* Reset the flags for later calls */
+ mount->is_mounted = mount->just_mounted = mount->just_changed = false;
+ }
+}
+
+int mount_path_is_mounted(Manager *m, const char* path) {
+ char *t;
+ int r;
+
+ assert(m);
+ assert(path);
+
+ if (path[0] != '/')
+ return 1;
+
+ if (!(t = strdup(path)))
+ return -ENOMEM;
+
+ path_kill_slashes(t);
+
+ for (;;) {
+ char *e, *slash;
+ Unit *u;
+
+ if (!(e = unit_name_escape_path(t+1, ".mount"))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ u = manager_get_unit(m, e);
+ free(e);
+
+ if (u &&
+ (MOUNT(u)->from_etc_fstab || MOUNT(u)->from_fragment) &&
+ MOUNT(u)->state != MOUNT_MOUNTED) {
+ r = 0;
+ goto finish;
}
- /* Clear the flags for later calls */
- mount->just_created = false;
- mount->still_exists = false;
+ assert_se(slash = strrchr(t, '/'));
+
+ if (slash == t) {
+ r = 1;
+ goto finish;
+ }
+
+ *slash = 0;
}
+
+ r = 1;
+
+finish:
+ free(t);
+ return r;
}
const UnitVTable mount_vtable = {
.suffix = ".mount",
- .init = unit_load_fragment_and_dropin_optional,
+ .no_alias = true,
+
+ .init = mount_init,
+ .load = mount_load,
.done = mount_done,
+
.coldplug = mount_coldplug,
.dump = mount_dump,
+ .start = mount_start,
+ .stop = mount_stop,
+ .reload = mount_reload,
+
.active_state = mount_active_state,
+ .sigchld_event = mount_sigchld_event,
+ .timer_event = mount_timer_event,
+
.enumerate = mount_enumerate,
.shutdown = mount_shutdown
};
typedef enum MountState {
MOUNT_DEAD,
- MOUNT_MOUNTING,
+ MOUNT_MOUNTING, /* /bin/mount is running, but the mount is not done yet. */
+ MOUNT_MOUNTING_DONE, /* /bin/mount is running, and the mount is done. */
MOUNT_MOUNTED,
+ MOUNT_REMOUNTING,
MOUNT_UNMOUNTING,
+ MOUNT_MOUNTING_SIGTERM,
+ MOUNT_MOUNTING_SIGKILL,
+ MOUNT_REMOUNTING_SIGTERM,
+ MOUNT_REMOUNTING_SIGKILL,
+ MOUNT_UNMOUNTING_SIGTERM,
+ MOUNT_UNMOUNTING_SIGKILL,
MOUNT_MAINTAINANCE,
- _MOUNT_STATE_MAX
+ _MOUNT_STATE_MAX,
+ _MOUNT_STATE_INVALID = -1
} MountState;
+typedef enum MountExecCommand {
+ MOUNT_EXEC_MOUNT,
+ MOUNT_EXEC_UNMOUNT,
+ MOUNT_EXEC_REMOUNT,
+ _MOUNT_EXEC_COMMAND_MAX,
+ _MOUNT_EXEC_COMMAND_INVALID = -1
+} MountExecCommand;
+
+typedef struct MountParameters {
+ char *what;
+ char *options;
+ char *fstype;
+} MountParameters;
+
struct Mount {
Meta meta;
- MountState state;
+ char *where;
- char *what, *where;
+ MountParameters parameters_etc_fstab;
+ MountParameters parameters_proc_self_mountinfo;
+ MountParameters parameters_fragment;
bool from_etc_fstab:1;
bool from_proc_self_mountinfo:1;
+ bool from_fragment:1;
/* Used while looking for mount points that vanished or got
* added from/to /proc/self/mountinfo */
- bool still_exists:1;
- bool just_created:1;
+ bool is_mounted:1;
+ bool just_mounted:1;
+ bool just_changed:1;
+
+ bool failure:1;
+
+ usec_t timeout_usec;
+
+ ExecCommand exec_command[_MOUNT_EXEC_COMMAND_MAX];
+ ExecContext exec_context;
+
+ MountState state;
+
+ KillMode kill_mode;
+
+ ExecCommand* control_command;
+ pid_t control_pid;
+
+ Watch timer_watch;
};
extern const UnitVTable mount_vtable;
void mount_fd_event(Manager *m, int events);
+int mount_path_is_mounted(Manager *m, const char* path);
+
#endif
s->sysv_runlevels = NULL;
exec_context_done(&s->exec_context);
- exec_command_free_array(s->exec_command, _SERVICE_EXEC_MAX);
+ exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
s->control_command = NULL;
/* This will leak a process, but at least no memory or any of
return 0;
}
-static int service_load_sysv_path(Service *s, const char *path, UnitLoadState *new_state) {
+static int service_load_sysv_path(Service *s, const char *path) {
FILE *f;
Unit *u;
unsigned line = 0;
assert(s);
assert(path);
- assert(new_state);
u = UNIT(s);
goto finish;
}
- *new_state = UNIT_LOADED;
+ u->meta.load_state = UNIT_LOADED;
r = 0;
finish:
return r;
}
-static int service_load_sysv_name(Service *s, const char *name, UnitLoadState *new_state) {
+static int service_load_sysv_name(Service *s, const char *name) {
char **p;
assert(s);
assert(endswith(path, ".service"));
path[strlen(path)-8] = 0;
- r = service_load_sysv_path(s, path, new_state);
+ r = service_load_sysv_path(s, path);
free(path);
if (r < 0)
return r;
- if (*new_state != UNIT_STUB)
+ if ((UNIT(s)->meta.load_state != UNIT_STUB))
break;
}
return 0;
}
-static int service_load_sysv(Service *s, UnitLoadState *new_state) {
+static int service_load_sysv(Service *s) {
const char *t;
Iterator i;
int r;
assert(s);
- assert(new_state);
/* Load service data from SysV init scripts, preferably with
* LSB headers ... */
return 0;
if ((t = unit_id(UNIT(s))))
- if ((r = service_load_sysv_name(s, t, new_state)) < 0)
+ if ((r = service_load_sysv_name(s, t)) < 0)
return r;
- if (*new_state == UNIT_STUB)
+ if (UNIT(s)->meta.load_state == UNIT_STUB)
SET_FOREACH(t, UNIT(s)->meta.names, i) {
- if ((r == service_load_sysv_name(s, t, new_state)) < 0)
+ if (t == unit_id(UNIT(s)))
+ continue;
+
+ if ((r == service_load_sysv_name(s, t)) < 0)
return r;
- if (*new_state != UNIT_STUB)
+ if (UNIT(s)->meta.load_state != UNIT_STUB)
break;
}
return 0;
}
-static int service_init(Unit *u, UnitLoadState *new_state) {
- int r;
+static void service_init(Unit *u) {
Service *s = SERVICE(u);
- assert(s);
- assert(new_state);
- assert(*new_state == UNIT_STUB);
-
- /* First, reset everything to the defaults, in case this is a
- * reload */
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
s->type = 0;
s->restart = 0;
s->failure = false;
RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
+}
+
+static int service_load(Unit *u) {
+ int r;
+ Service *s = SERVICE(u);
+
+ assert(s);
/* Load a .service file */
- if ((r = unit_load_fragment(u, new_state)) < 0)
+ if ((r = unit_load_fragment(u)) < 0)
return r;
/* Load a classic init script as a fallback, if we couldn't find anything */
- if (*new_state == UNIT_STUB)
- if ((r = service_load_sysv(s, new_state)) < 0)
+ if (u->meta.load_state == UNIT_STUB)
+ if ((r = service_load_sysv(s)) < 0)
return r;
/* Still nothing found? Then let's give up */
- if (*new_state == UNIT_STUB)
+ if (u->meta.load_state == UNIT_STUB)
return -ENOENT;
/* We were able to load something, then let's add in the
return r;
/* This is a new unit? Then let's add in some extras */
- if (*new_state == UNIT_LOADED) {
+ if (u->meta.load_state == UNIT_LOADED) {
if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
return r;
exec_context_dump(&s->exec_context, f, prefix);
- for (c = 0; c < _SERVICE_EXEC_MAX; c++) {
+ for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
if (!s->exec_command[c])
continue;
}
-static int service_notify_sockets(Service *s) {
+static int service_notify_sockets_dead(Service *s) {
Iterator i;
Set *set;
Socket *sock;
state != SERVICE_STOP_SIGKILL &&
state != SERVICE_STOP_POST &&
state != SERVICE_FINAL_SIGTERM &&
- state != SERVICE_FINAL_SIGKILL)
+ state != SERVICE_FINAL_SIGKILL) {
if (s->control_pid > 0) {
unit_unwatch_pid(UNIT(s), s->control_pid);
s->control_pid = 0;
}
- if (state != SERVICE_START_PRE &&
- state != SERVICE_START &&
- state != SERVICE_START_POST &&
- state != SERVICE_RELOAD &&
- state != SERVICE_STOP &&
- state != SERVICE_STOP_POST)
s->control_command = NULL;
+ }
if (state == SERVICE_DEAD ||
state == SERVICE_STOP ||
state == SERVICE_FINAL_SIGKILL ||
state == SERVICE_MAINTAINANCE ||
state == SERVICE_AUTO_RESTART)
- service_notify_sockets(s);
+ service_notify_sockets_dead(s);
- if (old_state == state)
- return;
-
- log_debug("%s changed %s → %s", unit_id(UNIT(s)), service_state_to_string(old_state), service_state_to_string(state));
+ if (old_state != state)
+ log_debug("%s changed %s → %s", unit_id(UNIT(s)), service_state_to_string(old_state), service_state_to_string(state));
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
}
assert(s);
+ /* Cannot do this now */
if (s->state == SERVICE_START_PRE ||
s->state == SERVICE_START ||
s->state == SERVICE_START_POST ||
s->state == SERVICE_RELOAD)
return -EAGAIN;
+ /* Already on it */
+ if (s->state == SERVICE_STOP ||
+ s->state == SERVICE_STOP_SIGTERM ||
+ s->state == SERVICE_STOP_SIGKILL ||
+ s->state == SERVICE_STOP_POST ||
+ s->state == SERVICE_FINAL_SIGTERM ||
+ s->state == SERVICE_FINAL_SIGKILL)
+ return 0;
+
if (s->state == SERVICE_AUTO_RESTART) {
service_set_state(s, SERVICE_DEAD);
return 0;
DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
-static const char* const service_exec_command_table[_SERVICE_EXEC_MAX] = {
+static const char* const service_exec_command_table[_SERVICE_EXEC_COMMAND_MAX] = {
[SERVICE_EXEC_START_PRE] = "ExecStartPre",
[SERVICE_EXEC_START] = "ExecStart",
[SERVICE_EXEC_START_POST] = "ExecStartPost",
.suffix = ".service",
.init = service_init,
+ .load = service_load,
.done = service_done,
.dump = service_dump,
SERVICE_EXEC_RELOAD,
SERVICE_EXEC_STOP,
SERVICE_EXEC_STOP_POST,
- _SERVICE_EXEC_MAX,
- _SERVICE_EXEC_INVALID = -1
+ _SERVICE_EXEC_COMMAND_MAX,
+ _SERVICE_EXEC_COMMAND_INVALID = -1
} ServiceExecCommand;
struct Service {
usec_t restart_usec;
usec_t timeout_usec;
- ExecCommand* exec_command[_SERVICE_EXEC_MAX];
+ ExecCommand* exec_command[_SERVICE_EXEC_COMMAND_MAX];
ExecContext exec_context;
bool permissions_start_only;
pid_t main_pid, control_pid;
bool main_pid_known:1;
- bool sysv_has_lsb:1;
-
bool failure:1; /* if we shut down, remember why */
- Watch timer_watch;
+ bool sysv_has_lsb:1;
char *sysv_path;
int sysv_start_priority;
char *sysv_runlevels;
RateLimit ratelimit;
+
+ Watch timer_watch;
};
extern const UnitVTable service_vtable;
}
exec_context_done(&s->exec_context);
- exec_command_free_array(s->exec_command, _SOCKET_EXEC_MAX);
+ exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX);
s->control_command = NULL;
if (s->control_pid > 0) {
s->service = NULL;
free(s->bind_to_device);
+ s->bind_to_device = NULL;
unit_unwatch_timer(u, &s->timer_watch);
}
-static int socket_init(Unit *u, UnitLoadState *new_state) {
+static void socket_init(Unit *u) {
Socket *s = SOCKET(u);
- char *t;
- int r;
- /* First, reset everything to the defaults, in case this is a
- * reload */
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
s->state = 0;
s->timer_watch.type = WATCH_INVALID;
s->kill_mode = 0;
s->failure = false;
s->control_pid = 0;
+ s->service = NULL;
exec_context_init(&s->exec_context);
+}
- if ((r = unit_load_fragment(u, new_state)) < 0)
- return r;
+static int socket_load(Unit *u) {
+ Socket *s = SOCKET(u);
+ int r;
- if (*new_state == UNIT_STUB)
- return -ENOENT;
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
- if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
+ if ((r = unit_load_fragment_and_dropin(u)) < 0)
return r;
/* This is a new unit? Then let's add in some extras */
- if (*new_state == UNIT_LOADED) {
-
- if (!(t = unit_name_change_suffix(unit_id(u), ".service")))
- return -ENOMEM;
+ if (u->meta.load_state == UNIT_LOADED) {
- r = manager_load_unit(u->meta.manager, t, (Unit**) &s->service);
- free(t);
-
- if (r < 0)
+ if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)))
return r;
if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service))) < 0)
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
- static const char* const command_table[_SOCKET_EXEC_MAX] = {
+ static const char* const command_table[_SOCKET_EXEC_COMMAND_MAX] = {
[SOCKET_EXEC_START_PRE] = "StartPre",
[SOCKET_EXEC_START_POST] = "StartPost",
[SOCKET_EXEC_STOP_PRE] = "StopPre",
exec_context_dump(&s->exec_context, f, prefix);
- for (c = 0; c < _SOCKET_EXEC_MAX; c++) {
+ for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) {
if (!s->exec_command[c])
continue;
state != SOCKET_STOP_PRE_SIGKILL &&
state != SOCKET_STOP_POST &&
state != SOCKET_STOP_POST_SIGTERM &&
- state != SOCKET_STOP_POST_SIGKILL)
+ state != SOCKET_STOP_POST_SIGKILL) {
unit_unwatch_timer(UNIT(s), &s->timer_watch);
- if (state != SOCKET_START_PRE &&
- state != SOCKET_START_POST &&
- state != SOCKET_STOP_PRE &&
- state != SOCKET_STOP_PRE_SIGTERM &&
- state != SOCKET_STOP_PRE_SIGKILL &&
- state != SOCKET_STOP_POST &&
- state != SOCKET_STOP_POST_SIGTERM &&
- state != SOCKET_STOP_POST_SIGKILL)
if (s->control_pid > 0) {
unit_unwatch_pid(UNIT(s), s->control_pid);
s->control_pid = 0;
}
- if (state != SOCKET_START_PRE &&
- state != SOCKET_START_POST &&
- state != SOCKET_STOP_PRE &&
- state != SOCKET_STOP_POST)
s->control_command = NULL;
+ }
if (state != SOCKET_START_POST &&
state != SOCKET_LISTENING &&
if (state != SOCKET_LISTENING)
socket_unwatch_fds(s);
- if (state == old_state)
- return;
-
- log_debug("%s changed %s → %s", unit_id(UNIT(s)), state_string_table[old_state], state_string_table[state]);
+ if (state != old_state)
+ log_debug("%s changed %s → %s", unit_id(UNIT(s)), state_string_table[old_state], state_string_table[state]);
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
}
-static int socket_spawn(Socket *s, ExecCommand *c, bool timeout, pid_t *_pid) {
+static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
pid_t pid;
int r;
assert(c);
assert(_pid);
- if (timeout) {
- if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
- goto fail;
- } else
- unit_unwatch_timer(UNIT(s), &s->timer_watch);
+ if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
+ goto fail;
if ((r = exec_spawn(c,
&s->exec_context,
return 0;
fail:
- if (timeout)
- unit_unwatch_timer(UNIT(s), &s->timer_watch);
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
return r;
}
s->failure = true;
if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST]))
- if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
socket_set_state(s, SOCKET_STOP_POST);
r = -errno;
goto fail;
}
-
}
socket_set_state(s, state);
s->failure = true;
if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE]))
- if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
socket_set_state(s, SOCKET_STOP_PRE);
}
if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST]))
- if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0) {
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) {
log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r));
goto fail;
}
assert(s);
if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE]))
- if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
socket_set_state(s, SOCKET_START_PRE);
s->control_command = s->control_command->command_next;
- if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
return;
if (s->service->meta.load_state != UNIT_LOADED)
return -ENOENT;
+ /* If the service is alredy actvie we cannot start the
+ * socket */
+ if (s->service->state != SERVICE_DEAD &&
+ s->service->state != SERVICE_MAINTAINANCE &&
+ s->service->state != SERVICE_AUTO_RESTART)
+ return -EBUSY;
+
assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTAINANCE);
s->failure = false;
s->state == SOCKET_START_POST)
return -EAGAIN;
+ /* Already on it */
+ if (s->state == SOCKET_STOP_PRE ||
+ s->state == SOCKET_STOP_PRE_SIGTERM ||
+ s->state == SOCKET_STOP_PRE_SIGKILL ||
+ s->state == SOCKET_STOP_POST ||
+ s->state == SOCKET_STOP_POST_SIGTERM ||
+ s->state == SOCKET_STOP_POST_SIGTERM)
+ return 0;
+
assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
socket_enter_stop_pre(s, true);
assert(s);
assert(elapsed == 1);
-
assert(w == &s->timer_watch);
switch (s->state) {
case SOCKET_START_PRE:
case SOCKET_START_POST:
- log_warning("%s operation timed out. Stopping.", unit_id(u));
+ log_warning("%s starting timed out. Stopping.", unit_id(u));
socket_enter_stop_pre(s, false);
break;
.suffix = ".socket",
.init = socket_init,
+ .load = socket_load,
.done = socket_done,
.dump = socket_dump,
SOCKET_STOP_POST_SIGTERM,
SOCKET_STOP_POST_SIGKILL,
SOCKET_MAINTAINANCE,
- _SOCKET_STATE_MAX
+ _SOCKET_STATE_MAX,
+ _SOCKET_STATE_INVALID = -1
} SocketState;
typedef enum SocketExecCommand {
SOCKET_EXEC_START_POST,
SOCKET_EXEC_STOP_PRE,
SOCKET_EXEC_STOP_POST,
- _SOCKET_EXEC_MAX
+ _SOCKET_EXEC_COMMAND_MAX,
+ _SOCKET_EXEC_COMMAND_INVALID = -1
} SocketExecCommand;
typedef enum SocketType {
SOCKET_SOCKET,
- SOCKET_FIFO
+ SOCKET_FIFO,
+ _SOCKET_FIFO_MAX,
+ _SOCKET_FIFO_INVALID = -1
} SocketType;
typedef struct SocketPort SocketPort;
usec_t timeout_usec;
- ExecCommand* exec_command[_SOCKET_EXEC_MAX];
+ ExecCommand* exec_command[_SOCKET_EXEC_COMMAND_MAX];
ExecContext exec_context;
Service *service;
[TARGET_ACTIVE] = "active"
};
+static void target_init(Unit *u) {
+ Target *t = TARGET(u);
+
+ assert(t);
+ assert(u->meta.load_state == UNIT_STUB);
+
+ t->state = 0;
+}
+
static void target_dump(Unit *u, FILE *f, const char *prefix) {
Target *t = TARGET(u);
TargetState old_state;
assert(t);
- if (state == t->state)
- return;
-
old_state = t->state;
t->state = state;
- log_debug("%s changed %s → %s", unit_id(UNIT(t)), state_string_table[old_state], state_string_table[state]);
+ if (state != old_state)
+ log_debug("%s changed %s → %s", unit_id(UNIT(t)), state_string_table[old_state], state_string_table[state]);
unit_notify(UNIT(t), state_translation_table[old_state], state_translation_table[state]);
}
const UnitVTable target_vtable = {
.suffix = ".target",
- .init = unit_load_fragment_and_dropin,
+ .init = target_init,
+ .load = unit_load_fragment_and_dropin,
.dump = target_dump,
const UnitVTable timer_vtable = {
.suffix = ".timer",
- .init = unit_load_fragment_and_dropin,
+ .load = unit_load_fragment_and_dropin,
.done = timer_done,
.active_state = timer_active_state
if (u->meta.type != _UNIT_TYPE_INVALID && t != u->meta.type)
return -EINVAL;
+ if (u->meta.type != _UNIT_TYPE_INVALID &&
+ UNIT_VTABLE(u)->no_alias &&
+ !set_isempty(u->meta.names))
+ return -EEXIST;
+
if (!(s = strdup(text)))
return -ENOMEM;
return r;
}
- if (u->meta.type == _UNIT_TYPE_INVALID)
+ if (u->meta.type == _UNIT_TYPE_INVALID) {
LIST_PREPEND(Meta, units_per_type, u->meta.manager->units_per_type[t], &u->meta);
- u->meta.type = t;
+ u->meta.type = t;
+
+ if (UNIT_VTABLE(u)->init)
+ UNIT_VTABLE(u)->init(u);
+ }
if (!u->meta.id)
u->meta.id = s;
bus_unit_send_removed_signal(u);
/* Detach from next 'bigger' objects */
-
- cgroup_bonding_free_list(u->meta.cgroup_bondings);
-
SET_FOREACH(t, u->meta.names, i)
hashmap_remove_value(u->meta.manager->units, t, u);
if (u->meta.in_cleanup_queue)
LIST_REMOVE(Meta, cleanup_queue, u->meta.manager->cleanup_queue, &u->meta);
+ /* Free data and next 'smaller' objects */
+ if (u->meta.job)
+ job_free(u->meta.job);
+
if (u->meta.load_state != UNIT_STUB)
if (UNIT_VTABLE(u)->done)
UNIT_VTABLE(u)->done(u);
- /* Free data and next 'smaller' objects */
- if (u->meta.job)
- job_free(u->meta.job);
+ cgroup_bonding_free_list(u->meta.cgroup_bondings);
for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++)
bidi_set_free(u, u->meta.dependencies[d]);
if (other == u)
return 0;
- /* This merges 'other' into 'unit'. FIXME: This does not
- * rollback on failure. */
-
if (u->meta.type != u->meta.type)
return -EINVAL;
}
/* Common implementation for multiple backends */
-int unit_load_fragment_and_dropin(Unit *u, UnitLoadState *new_state) {
+int unit_load_fragment_and_dropin(Unit *u) {
int r;
assert(u);
- assert(new_state);
- assert(*new_state == UNIT_STUB || *new_state == UNIT_LOADED);
/* Load a .service file */
- if ((r = unit_load_fragment(u, new_state)) < 0)
+ if ((r = unit_load_fragment(u)) < 0)
return r;
- if (*new_state == UNIT_STUB)
+ if (u->meta.load_state == UNIT_STUB)
return -ENOENT;
/* Load drop-in directory data */
}
/* Common implementation for multiple backends */
-int unit_load_fragment_and_dropin_optional(Unit *u, UnitLoadState *new_state) {
+int unit_load_fragment_and_dropin_optional(Unit *u) {
int r;
assert(u);
- assert(new_state);
- assert(*new_state == UNIT_STUB || *new_state == UNIT_LOADED);
/* Same as unit_load_fragment_and_dropin(), but whether
* something can be loaded or not doesn't matter. */
/* Load a .service file */
- if ((r = unit_load_fragment(u, new_state)) < 0)
+ if ((r = unit_load_fragment(u)) < 0)
return r;
- if (*new_state == UNIT_STUB)
- *new_state = UNIT_LOADED;
+ if (u->meta.load_state == UNIT_STUB)
+ u->meta.load_state = UNIT_LOADED;
/* Load drop-in directory data */
if ((r = unit_load_dropin(unit_follow_merge(u))) < 0)
int unit_load(Unit *u) {
int r;
- UnitLoadState res;
assert(u);
u->meta.in_load_queue = false;
}
+ if (u->meta.type == _UNIT_TYPE_INVALID)
+ return -EINVAL;
+
if (u->meta.load_state != UNIT_STUB)
return 0;
- if (UNIT_VTABLE(u)->init) {
- res = UNIT_STUB;
- if ((r = UNIT_VTABLE(u)->init(u, &res)) < 0)
+ if (UNIT_VTABLE(u)->load)
+ if ((r = UNIT_VTABLE(u)->load(u)) < 0)
goto fail;
- }
- if (res == UNIT_STUB) {
+ if (u->meta.load_state == UNIT_STUB) {
r = -ENOENT;
goto fail;
}
- u->meta.load_state = res;
assert((u->meta.load_state != UNIT_MERGED) == !u->meta.merged_into);
unit_add_to_dbus_queue(unit_follow_merge(u));
if (!UNIT_VTABLE(u)->stop)
return -EBADR;
- if (state == UNIT_DEACTIVATING)
- return 0;
-
unit_add_to_dbus_queue(u);
return UNIT_VTABLE(u)->stop(u);
}
retroactively_stop_dependencies(u);
}
- if (!UNIT_IS_ACTIVE_OR_RELOADING(os) && UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
-
+ /* Some names are special */
+ if (UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
if (unit_has_name(u, SPECIAL_DBUS_SERVICE)) {
- log_info("D-Bus became available, trying to reconnect.");
- /* The bus just got started, hence try to connect to it. */
+ /* The bus just might have become available,
+ * hence try to connect to it, if we aren't
+ * yet connected. */
bus_init_system(u->meta.manager);
bus_init_api(u->meta.manager);
}
- if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE)) {
- /* The syslog daemon just got started, hence try to connect to it. */
- log_info("Syslog became available, trying to reconnect.");
+ if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
+ /* The syslog daemon just might have become
+ * available, hence try to connect to it, if
+ * we aren't yet connected. */
log_open_syslog();
- }
- } else if (UNIT_IS_ACTIVE_OR_RELOADING(os) && !UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
+ if (u->meta.type == UNIT_MOUNT)
+ /* Another directory became available, let's
+ * check if that is enough to write our utmp
+ * entry. */
+ manager_write_utmp_reboot(u->meta.manager);
+
+ if (u->meta.type == UNIT_TARGET)
+ /* A target got activated, maybe this is a runlevel? */
+ manager_write_utmp_runlevel(u->meta.manager, u);
+
+ } else if (!UNIT_IS_ACTIVE_OR_RELOADING(ns)) {
if (unit_has_name(u, SPECIAL_SYSLOG_SERVICE))
- /* The syslog daemon just got terminated, hence try to disconnect from it. */
+ /* The syslog daemon might just have
+ * terminated, hence try to disconnect from
+ * it. */
log_close_syslog();
/* We don't care about D-Bus here, since we'll get an
struct UnitVTable {
const char *suffix;
- int (*init)(Unit *u, UnitLoadState *new_state);
+ /* Can units of this type have multiple names? */
+ bool no_alias:1;
+
+ /* If true units of this types can never have "Requires"
+ * dependencies, because state changes can only be observed,
+ * not triggered */
+ bool refuse_requires:1;
+
+ /* This should reset all type-specific variables. This should
+ * not allocate memory, and is either called with 0
+ * initialized data, or with data left from done() */
+ void (*init)(Unit *u);
+
+ /* Actually load data from disk. This may fail, and should set
+ * load_state to UNIT_LOADED, UNIT_MERGED or leave it at
+ * UNIT_STUB if no configuration could be found. */
+ int (*load)(Unit *u);
+
+ /* This should free all type-specific variables. It should be
+ * idempotent. There's no need to reset variables that deal
+ * with dynamic memory/resources. */
void (*done)(Unit *u);
+
+ /* If a a lot of units got created via enumerate(), this is
+ * where to actually set the state and call unit_notify(). */
int (*coldplug)(Unit *u);
void (*dump)(Unit *u, FILE *f, const char *prefix);
Unit *unit_follow_merge(Unit *u);
-int unit_load_fragment_and_dropin(Unit *u, UnitLoadState *new_state);
-int unit_load_fragment_and_dropin_optional(Unit *u, UnitLoadState *new_state);
+int unit_load_fragment_and_dropin(Unit *u);
+int unit_load_fragment_and_dropin_optional(Unit *u);
int unit_load(Unit *unit);
const char* unit_id(Unit *u);
--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <utmpx.h>
+#include <errno.h>
+#include <assert.h>
+#include <string.h>
+#include <sys/utsname.h>
+
+#include "macro.h"
+#include "utmp-wtmp.h"
+
+int utmp_get_runlevel(int *runlevel, int *previous) {
+ struct utmpx lookup, *found;
+ int r;
+ const char *e;
+
+ assert(runlevel);
+
+ /* If these values are set in the environment this takes
+ * precedence. Presumably, sysvinit does this to work around a
+ * race condition that would otherwise exist where we'd always
+ * go to disk and hence might read runlevel data that might be
+ * very new and does not apply to the current script being
+ * executed. */
+
+ if ((e = getenv("RUNLEVEL")) && e[0] > 0) {
+ *runlevel = e[0];
+
+ if (previous) {
+ /* $PREVLEVEL seems to be an Upstart thing */
+
+ if ((e = getenv("PREVLEVEL")) && e[0] > 0)
+ *previous = e[0];
+ else
+ *previous = 0;
+ }
+
+ return 0;
+ }
+
+ if (utmpxname(_PATH_UTMPX) < 0)
+ return -errno;
+
+ setutxent();
+
+ zero(lookup);
+ lookup.ut_type = RUN_LVL;
+
+ if (!(found = getutxid(&lookup)))
+ r = -errno;
+ else {
+ int a, b;
+
+ a = found->ut_pid & 0xFF;
+ b = (found->ut_pid >> 8) & 0xFF;
+
+ if (a < 0 || b < 0)
+ r = -EIO;
+ else {
+ *runlevel = a;
+
+ if (previous)
+ *previous = b;
+ r = 0;
+ }
+ }
+
+ endutxent();
+
+ return r;
+}
+
+static void init_entry(struct utmpx *store, usec_t timestamp) {
+ struct utsname uts;
+
+ assert(store);
+
+ zero(*store);
+ zero(uts);
+
+ if (timestamp <= 0)
+ timestamp = now(CLOCK_REALTIME);
+
+ store->ut_tv.tv_sec = timestamp / USEC_PER_SEC;
+ store->ut_tv.tv_usec = timestamp % USEC_PER_SEC;
+
+ if (uname(&uts) >= 0)
+ strncpy(store->ut_host, uts.release, sizeof(store->ut_host));
+
+ strncpy(store->ut_line, "~", sizeof(store->ut_line)); /* or ~~ ? */
+ strncpy(store->ut_id, "~~", sizeof(store->ut_id));
+}
+
+static int write_entry_utmp(const struct utmpx *store) {
+ int r;
+
+ assert(store);
+
+ /* utmp is similar to wtmp, but there is only one entry for
+ * each entry type resp. user; i.e. basically a key/value
+ * table. */
+
+ if (utmpxname(_PATH_UTMPX) < 0)
+ return -errno;
+
+ setutxent();
+
+ if (!pututxline(store))
+ r = -errno;
+ else
+ r = 0;
+
+ endutxent();
+
+ return r;
+}
+
+static int write_entry_wtmp(const struct utmpx *store) {
+ assert(store);
+
+ /* wtmp is a simple append-only file where each entry is
+ simply appended to * the end; i.e. basically a log. */
+
+ errno = 0;
+ updwtmpx(_PATH_WTMPX, store);
+ return -errno;
+}
+
+static int write_entry_both(const struct utmpx *store) {
+ int r, s;
+
+ r = write_entry_utmp(store);
+ s = write_entry_wtmp(store);
+
+ if (r >= 0)
+ r = s;
+
+ /* If utmp/wtmp have been disabled, that's a good thing, hence
+ * ignore the errors */
+ if (r == -ENOENT)
+ r = 0;
+
+ return r;
+}
+
+int utmp_put_shutdown(usec_t timestamp) {
+ struct utmpx store;
+
+ init_entry(&store, timestamp);
+
+ store.ut_type = RUN_LVL;
+ strncpy(store.ut_user, "shutdown", sizeof(store.ut_user));
+
+ return write_entry_both(&store);
+}
+
+int utmp_put_reboot(usec_t timestamp) {
+ struct utmpx store;
+
+ init_entry(&store, timestamp);
+
+ store.ut_type = BOOT_TIME;
+ strncpy(store.ut_user, "reboot", sizeof(store.ut_type));
+
+ return write_entry_both(&store);
+}
+
+int utmp_put_runlevel(usec_t timestamp, int runlevel, int previous) {
+ struct utmpx store;
+ int r;
+
+ assert(runlevel > 0);
+
+ if (previous <= 0) {
+ /* Find the old runlevel automatically */
+
+ if ((r = utmp_get_runlevel(&previous, NULL)) < 0)
+ return r;
+
+ if (previous == runlevel)
+ return 0;
+ }
+
+ init_entry(&store, timestamp);
+
+ store.ut_type = RUN_LVL;
+ store.ut_pid = (runlevel & 0xFF) | ((previous & 0xFF) << 8);
+ strncpy(store.ut_user, "runlevel", sizeof(store.ut_user));
+
+ return write_entry_both(&store);
+}
--- /dev/null
+/*-*- Mode: C; c-basic-offset: 8 -*-*/
+
+#ifndef fooutmpwtmphfoo
+#define fooutmpwtmphfoo
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include "util.h"
+
+int utmp_get_runlevel(int *runlevel, int *previous);
+
+int utmp_put_shutdown(usec_t timestamp);
+int utmp_put_reboot(usec_t timestamp);
+int utmp_put_runlevel(usec_t timestamp, int runlevel, int previous);
+
+#endif
projects / people / ms / systemd.git / commitdiff
