m->exec_context.std_error = u->manager->default_std_error;
}
- /* We need to make sure that /bin/mount is always called in
- * the same process group as us, so that the autofs kernel
+ /* We need to make sure that /usr/bin/mount is always called
+ * in the same process group as us, so that the autofs kernel
* side doesn't send us another mount request while we are
* already trying to comply its last one. */
m->exec_context.same_pgrp = true;
return sd_event_source_set_enabled(m->timer_event_source, SD_EVENT_ONESHOT);
}
- return sd_event_add_time(
+ r = sd_event_add_time(
UNIT(m)->manager->event,
&m->timer_event_source,
CLOCK_MONOTONIC,
now(CLOCK_MONOTONIC) + m->timeout_usec, 0,
mount_dispatch_timer, m);
+ if (r < 0)
+ return r;
+
+ (void) sd_event_source_set_description(m->timer_event_source, "mount-timer");
+
+ return 0;
}
static void mount_unwatch_control_pid(Mount *m) {
if (!is_device_path(p->what))
return 0;
+ /* /dev/root is a really weird thing, it's not a real device,
+ * but just a path the kernel exports for the root file system
+ * specified on the kernel command line. Ignore it here. */
+ if (path_equal(p->what, "/dev/root"))
+ return 0;
+
if (path_equal(m->where, "/"))
return 0;
- if (mount_is_auto(p) && UNIT(m)->manager->running_as == SYSTEMD_SYSTEM)
+ if (mount_is_auto(p) && UNIT(m)->manager->running_as == MANAGER_SYSTEM)
device_wants_mount = true;
r = unit_add_node_link(UNIT(m), p->what, device_wants_mount);
assert(m);
- if (UNIT(m)->manager->running_as != SYSTEMD_SYSTEM)
+ if (UNIT(m)->manager->running_as != MANAGER_SYSTEM)
return 0;
p = get_mount_parameters_fragment(m);
assert(m);
- if (UNIT(m)->manager->running_as != SYSTEMD_SYSTEM)
+ if (UNIT(m)->manager->running_as != MANAGER_SYSTEM)
return 0;
/* We do not add any default dependencies to / and /usr, since
static int mount_verify(Mount *m) {
_cleanup_free_ char *e = NULL;
- bool b;
+ int r;
assert(m);
if (!m->from_fragment && !m->from_proc_self_mountinfo)
return -ENOENT;
- e = unit_name_from_path(m->where, ".mount");
- if (!e)
- return -ENOMEM;
+ r = unit_name_from_path(m->where, ".mount", &e);
+ if (r < 0)
+ return log_unit_error_errno(UNIT(m), r, "Failed to generate unit name from mount path: %m");
- b = unit_has_name(UNIT(m), e);
- if (!b) {
- log_unit_error(UNIT(m)->id, "%s's Where= setting doesn't match unit name. Refusing.", UNIT(m)->id);
+ if (!unit_has_name(UNIT(m), e)) {
+ log_unit_error(UNIT(m), "Where= setting doesn't match unit name. Refusing.");
return -EINVAL;
}
if (mount_point_is_api(m->where) || mount_point_ignore(m->where)) {
- log_unit_error(UNIT(m)->id, "Cannot create mount unit for API file system %s. Refusing.", m->where);
+ log_unit_error(UNIT(m), "Cannot create mount unit for API file system %s. Refusing.", m->where);
return -EINVAL;
}
if (UNIT(m)->fragment_path && !m->parameters_fragment.what) {
- log_unit_error(UNIT(m)->id, "%s's What setting is missing. Refusing.", UNIT(m)->id);
+ log_unit_error(UNIT(m), "What= setting is missing. Refusing.");
return -EBADMSG;
}
if (m->exec_context.pam_name && m->kill_context.kill_mode != KILL_CONTROL_GROUP) {
- log_unit_error(UNIT(m)->id, "%s has PAM enabled. Kill mode must be set to control-group'. Refusing.",UNIT(m)->id);
+ log_unit_error(UNIT(m), "Unit has PAM enabled. Kill mode must be set to control-group'. Refusing.");
return -EINVAL;
}
m->from_fragment = true;
if (!m->where) {
- m->where = unit_name_to_path(u->id);
- if (!m->where)
- return -ENOMEM;
+ r = unit_name_to_path(u->id, &m->where);
+ if (r < 0)
+ return r;
}
path_kill_slashes(m->where);
mount_notify_automount(m, old_state, state);
if (state != old_state)
- log_unit_debug(UNIT(m)->id,
- "%s changed %s -> %s",
- UNIT(m)->id,
- mount_state_to_string(old_state),
- mount_state_to_string(state));
+ log_unit_debug(UNIT(m), "Changed %s -> %s", mount_state_to_string(old_state), mount_state_to_string(state));
unit_notify(UNIT(m), state_translation_table[old_state], state_translation_table[state], m->reload_result == MOUNT_SUCCESS);
m->reload_result = MOUNT_SUCCESS;
}
-static int mount_coldplug(Unit *u, Hashmap *deferred_work) {
+static int mount_coldplug(Unit *u) {
Mount *m = MOUNT(u);
MountState new_state = MOUNT_DEAD;
int r;
.apply_permissions = true,
.apply_chroot = true,
.apply_tty_stdin = true,
+ .bus_endpoint_fd = -1,
};
assert(m);
exec_params.cgroup_path = UNIT(m)->cgroup_path;
exec_params.cgroup_delegate = m->cgroup_context.delegate;
exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(m)->manager);
- exec_params.unit_id = UNIT(m)->id;
- r = exec_spawn(c,
+ r = exec_spawn(UNIT(m),
+ c,
&m->exec_context,
&exec_params,
m->exec_runtime,
return;
fail:
- log_unit_warning(UNIT(m)->id,
- "%s failed to kill processes: %s", UNIT(m)->id, strerror(-r));
+ log_unit_warning_errno(UNIT(m), r, "Failed to kill processes: %m");
if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
}
-void warn_if_dir_nonempty(const char *unit, const char* where) {
- int r;
-
- assert(unit);
- assert(where);
-
- r = dir_is_empty(where);
- if (r > 0)
- return;
- else if (r == 0)
- log_unit_struct(unit,
- LOG_NOTICE,
- LOG_MESSAGE_ID(SD_MESSAGE_OVERMOUNTING),
- LOG_MESSAGE("%s: Directory %s to mount over is not empty, mounting anyway.",
- unit, where),
- "WHERE=%s", where,
- NULL);
- else
- log_unit_warning(unit,
- "MESSAGE=Failed to check directory %s: %s",
- where, strerror(-r));
-}
-
-static int fail_if_symlink(const char *unit, const char* where) {
- assert(where);
-
- if (is_symlink(where) > 0) {
- log_unit_struct(unit,
- LOG_ERR,
- LOG_MESSAGE_ID(SD_MESSAGE_OVERMOUNTING),
- LOG_MESSAGE("%s: Mount on symlink %s not allowed.",
- unit, where),
- "WHERE=%s", where,
- NULL);
-
- return -ELOOP;
- }
- return 0;
-}
-
static void mount_enter_unmounting(Mount *m) {
int r;
m->control_command_id = MOUNT_EXEC_UNMOUNT;
m->control_command = m->exec_command + MOUNT_EXEC_UNMOUNT;
- r = exec_command_set(m->control_command, "/bin/umount", m->where, NULL);
- if (r >= 0 && UNIT(m)->manager->running_as == SYSTEMD_SYSTEM)
- r = exec_command_append(m->control_command, "-n", NULL);
+ r = exec_command_set(m->control_command, UMOUNT_PATH, m->where, NULL);
if (r < 0)
goto fail;
return;
fail:
- log_unit_warning(UNIT(m)->id,
- "%s failed to run 'umount' task: %s",
- UNIT(m)->id, strerror(-r));
+ log_unit_warning_errno(UNIT(m), r, "Failed to run 'umount' task: %m");
mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
}
m->control_command_id = MOUNT_EXEC_MOUNT;
m->control_command = m->exec_command + MOUNT_EXEC_MOUNT;
- mkdir_p_label(m->where, m->directory_mode);
+ r = unit_fail_if_symlink(UNIT(m), m->where);
+ if (r < 0)
+ goto fail;
+
+ (void) mkdir_p_label(m->where, m->directory_mode);
- warn_if_dir_nonempty(m->meta.id, m->where);
+ unit_warn_if_dir_nonempty(UNIT(m), m->where);
/* Create the source directory for bind-mounts if needed */
p = get_mount_parameters_fragment(m);
if (p && mount_is_bind(p))
- mkdir_p_label(p->what, m->directory_mode);
-
- r = fail_if_symlink(m->meta.id, m->where);
- if (r < 0)
- goto fail;
+ (void) mkdir_p_label(p->what, m->directory_mode);
if (m->from_fragment) {
_cleanup_free_ char *opts = NULL;
if (r < 0)
goto fail;
- r = exec_command_set(m->control_command, "/bin/mount",
+ r = exec_command_set(m->control_command, MOUNT_PATH,
m->parameters_fragment.what, m->where, NULL);
- if (r >= 0 && UNIT(m)->manager->running_as == SYSTEMD_SYSTEM)
- r = exec_command_append(m->control_command, "-n", NULL);
if (r >= 0 && m->sloppy_options)
r = exec_command_append(m->control_command, "-s", NULL);
if (r >= 0 && m->parameters_fragment.fstype)
return;
fail:
- log_unit_warning(UNIT(m)->id,
- "%s failed to run 'mount' task: %s",
- UNIT(m)->id, strerror(-r));
+ log_unit_warning_errno(UNIT(m), r, "Failed to run 'mount' task: %m");
mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
}
else
o = "remount";
- r = exec_command_set(m->control_command, "/bin/mount",
+ r = exec_command_set(m->control_command, MOUNT_PATH,
m->parameters_fragment.what, m->where,
"-o", o, NULL);
- if (r >= 0 && UNIT(m)->manager->running_as == SYSTEMD_SYSTEM)
- r = exec_command_append(m->control_command, "-n", NULL);
if (r >= 0 && m->sloppy_options)
r = exec_command_append(m->control_command, "-s", NULL);
if (r >= 0 && m->parameters_fragment.fstype)
return;
fail:
- log_unit_warning(UNIT(m)->id,
- "%s failed to run 'remount' task: %s",
- UNIT(m)->id, strerror(-r));
+ log_unit_warning_errno(UNIT(m), r, "Failed to run 'remount' task: %m");
m->reload_result = MOUNT_FAILURE_RESOURCES;
mount_enter_mounted(m, MOUNT_SUCCESS);
}
assert(m->state == MOUNT_MOUNTED);
mount_enter_remounting(m);
- return 0;
+ return 1;
}
static int mount_serialize(Unit *u, FILE *f, FDSet *fds) {
MountState state;
if ((state = mount_state_from_string(value)) < 0)
- log_unit_debug(u->id, "Failed to parse state value %s", value);
+ log_unit_debug(u, "Failed to parse state value: %s", value);
else
m->deserialized_state = state;
} else if (streq(key, "result")) {
f = mount_result_from_string(value);
if (f < 0)
- log_unit_debug(UNIT(m)->id,
- "Failed to parse result value %s", value);
+ log_unit_debug(u, "Failed to parse result value: %s", value);
else if (f != MOUNT_SUCCESS)
m->result = f;
f = mount_result_from_string(value);
if (f < 0)
- log_unit_debug(UNIT(m)->id,
- "Failed to parse reload result value %s", value);
+ log_unit_debug(u, "Failed to parse reload result value: %s", value);
else if (f != MOUNT_SUCCESS)
m->reload_result = f;
pid_t pid;
if (parse_pid(value, &pid) < 0)
- log_unit_debug(UNIT(m)->id,
- "Failed to parse control-pid value %s", value);
+ log_unit_debug(u, "Failed to parse control-pid value: %s", value);
else
m->control_pid = pid;
} else if (streq(key, "control-command")) {
MountExecCommand id;
- if ((id = mount_exec_command_from_string(value)) < 0)
- log_unit_debug(UNIT(m)->id,
- "Failed to parse exec-command value %s", value);
+ id = mount_exec_command_from_string(value);
+ if (id < 0)
+ log_unit_debug(u, "Failed to parse exec-command value: %s", value);
else {
m->control_command_id = id;
m->control_command = m->exec_command + id;
}
} else
- log_unit_debug(UNIT(m)->id,
- "Unknown serialization key '%s'", key);
+ log_unit_debug(u, "Unknown serialization key: %s", key);
return 0;
}
m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
}
- log_unit_full(u->id,
- f == MOUNT_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
- "%s mount process exited, code=%s status=%i",
- u->id, sigchld_code_to_string(code), status);
+ log_unit_full(u, f == MOUNT_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0,
+ "Mount process exited, code=%s status=%i", 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
* the mount command. */
if (m->n_retry_umount < RETRY_UMOUNT_MAX) {
- log_unit_debug(u->id, "%s: mount still present, trying again.", u->id);
+ log_unit_debug(u, "Mount still present, trying again.");
m->n_retry_umount++;
mount_enter_unmounting(m);
} else {
- log_unit_debug(u->id, "%s: mount still present after %u attempts to unmount, giving up.", u->id, m->n_retry_umount);
+ log_unit_debug(u, "Mount still present after %u attempts to unmount, giving up.", m->n_retry_umount);
mount_enter_mounted(m, f);
}
} else
case MOUNT_MOUNTING:
case MOUNT_MOUNTING_DONE:
- log_unit_warning(UNIT(m)->id,
- "%s mounting timed out. Stopping.", UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Mounting timed out. Stopping.");
mount_enter_signal(m, MOUNT_MOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
break;
case MOUNT_REMOUNTING:
- log_unit_warning(UNIT(m)->id,
- "%s remounting timed out. Stopping.", UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Remounting timed out. Stopping.");
m->reload_result = MOUNT_FAILURE_TIMEOUT;
mount_enter_mounted(m, MOUNT_SUCCESS);
break;
case MOUNT_UNMOUNTING:
- log_unit_warning(UNIT(m)->id,
- "%s unmounting timed out. Stopping.", UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Unmounting timed out. Stopping.");
mount_enter_signal(m, MOUNT_UNMOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
break;
case MOUNT_MOUNTING_SIGTERM:
if (m->kill_context.send_sigkill) {
- log_unit_warning(UNIT(m)->id,
- "%s mounting timed out. Killing.", UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Mounting timed out. Killing.");
mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
} else {
- log_unit_warning(UNIT(m)->id,
- "%s mounting timed out. Skipping SIGKILL. Ignoring.",
- UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Mounting timed out. Skipping SIGKILL. Ignoring.");
if (m->from_proc_self_mountinfo)
mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
case MOUNT_REMOUNTING_SIGTERM:
if (m->kill_context.send_sigkill) {
- log_unit_warning(UNIT(m)->id,
- "%s remounting timed out. Killing.", UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Remounting timed out. Killing.");
mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
} else {
- log_unit_warning(UNIT(m)->id,
- "%s remounting timed out. Skipping SIGKILL. Ignoring.",
- UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Remounting timed out. Skipping SIGKILL. Ignoring.");
if (m->from_proc_self_mountinfo)
mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
case MOUNT_UNMOUNTING_SIGTERM:
if (m->kill_context.send_sigkill) {
- log_unit_warning(UNIT(m)->id,
- "%s unmounting timed out. Killing.", UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Unmounting timed out. Killing.");
mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
} else {
- log_unit_warning(UNIT(m)->id,
- "%s unmounting timed out. Skipping SIGKILL. Ignoring.",
- UNIT(m)->id);
+ log_unit_warning(UNIT(m), "Unmounting timed out. Skipping SIGKILL. Ignoring.");
if (m->from_proc_self_mountinfo)
mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
case MOUNT_MOUNTING_SIGKILL:
case MOUNT_REMOUNTING_SIGKILL:
case MOUNT_UNMOUNTING_SIGKILL:
- log_unit_warning(UNIT(m)->id,
- "%s mount process still around after SIGKILL. Ignoring.",
- UNIT(m)->id);
+ log_unit_warning(UNIT(m),"Mount process still around after SIGKILL. Ignoring.");
if (m->from_proc_self_mountinfo)
mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
if (!is_path(where))
return 0;
- e = unit_name_from_path(where, ".mount");
- if (!e)
- return -ENOMEM;
+ r = unit_name_from_path(where, ".mount", &e);
+ if (r < 0)
+ return r;
u = manager_get_unit(m, e);
if (!u) {
goto fail;
}
- if (m->running_as == SYSTEMD_SYSTEM) {
+ if (m->running_as == MANAGER_SYSTEM) {
const char* target;
target = mount_needs_network(options, fstype) ? SPECIAL_REMOTE_FS_TARGET : SPECIAL_LOCAL_FS_TARGET;
}
}
- if (m->running_as == SYSTEMD_SYSTEM &&
+ if (m->running_as == MANAGER_SYSTEM &&
mount_needs_network(options, fstype)) {
/* _netdev option may have shown up late, or on a
* remount. Add remote-fs dependencies, even though
options = mnt_fs_get_options(fs);
fstype = mnt_fs_get_fstype(fs);
+ if (!device || !path)
+ continue;
+
if (cunescape(device, UNESCAPE_RELAX, &d) < 0)
return log_oom();
/* Dispatch this before we dispatch SIGCHLD, so that
* we always get the events from /proc/self/mountinfo
- * before the SIGCHLD of /bin/mount. */
+ * before the SIGCHLD of /usr/bin/mount. */
r = sd_event_source_set_priority(m->mount_event_source, -10);
if (r < 0)
goto fail;
+
+ (void) sd_event_source_set_description(m->mount_event_source, "mount-mountinfo-dispatch");
}
if (m->utab_inotify_fd < 0) {
r = sd_event_source_set_priority(m->mount_utab_event_source, -10);
if (r < 0)
goto fail;
+
+ (void) sd_event_source_set_description(m->mount_utab_event_source, "mount-utab-dispatch");
}
r = mount_load_proc_self_mountinfo(m, false);
}
static int mount_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
+ _cleanup_set_free_ Set *around = NULL, *gone = NULL;
Manager *m = userdata;
+ const char *what;
+ Iterator i;
Unit *u;
int r;
if (!mount->is_mounted) {
+ /* A mount point is not around right now. It
+ * might be gone, or might never have
+ * existed. */
+
+ if (mount->from_proc_self_mountinfo &&
+ mount->parameters_proc_self_mountinfo.what) {
+
+ /* Remember that this device might just have disappeared */
+ if (set_ensure_allocated(&gone, &string_hash_ops) < 0 ||
+ set_put(gone, mount->parameters_proc_self_mountinfo.what) < 0)
+ log_oom(); /* we don't care too much about OOM here... */
+ }
+
mount->from_proc_self_mountinfo = false;
switch (mount->state) {
break;
}
- if (mount->parameters_proc_self_mountinfo.what)
- (void) device_found_node(m, mount->parameters_proc_self_mountinfo.what, false, DEVICE_FOUND_MOUNT, true);
-
-
} else if (mount->just_mounted || mount->just_changed) {
- /* New or changed mount entry */
+ /* A mount point was added or changed */
switch (mount->state) {
}
}
+ if (mount->is_mounted &&
+ mount->from_proc_self_mountinfo &&
+ mount->parameters_proc_self_mountinfo.what) {
+
+ if (set_ensure_allocated(&around, &string_hash_ops) < 0 ||
+ set_put(around, mount->parameters_proc_self_mountinfo.what) < 0)
+ log_oom();
+ }
+
/* Reset the flags for later calls */
mount->is_mounted = mount->just_mounted = mount->just_changed = false;
}
+ SET_FOREACH(what, gone, i) {
+ if (set_contains(around, what))
+ continue;
+
+ /* Let the device units know that the device is no longer mounted */
+ (void) device_found_node(m, what, false, DEVICE_FOUND_MOUNT, true);
+ }
+
return 0;
}
.finished_start_job = {
[JOB_DONE] = "Mounted %s.",
[JOB_FAILED] = "Failed to mount %s.",
- [JOB_DEPENDENCY] = "Dependency failed for %s.",
[JOB_TIMEOUT] = "Timed out mounting %s.",
},
.finished_stop_job = {
projects / thirdparty / systemd.git / blobdiff