#include <sys/epoll.h>
#include <signal.h>
+#include "manager.h"
#include "unit.h"
#include "mount.h"
#include "load-fragment.h"
[MOUNT_FAILED] = UNIT_FAILED
};
+static int mount_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata);
+static int mount_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata);
+
+static char* mount_test_option(const char *haystack, const char *needle) {
+ struct mntent me = { .mnt_opts = (char*) haystack };
+
+ assert(needle);
+
+ /* Like glibc's hasmntopt(), but works on a string, not a
+ * struct mntent */
+
+ if (!haystack)
+ return NULL;
+
+ return hasmntopt(&me, needle);
+}
+
+static bool mount_is_network(MountParameters *p) {
+ assert(p);
+
+ if (mount_test_option(p->options, "_netdev"))
+ return true;
+
+ if (p->fstype && fstype_is_network(p->fstype))
+ return true;
+
+ return false;
+}
+
+static bool mount_is_bind(MountParameters *p) {
+ assert(p);
+
+ if (mount_test_option(p->options, "bind"))
+ return true;
+
+ if (p->fstype && streq(p->fstype, "bind"))
+ return true;
+
+ if (mount_test_option(p->options, "rbind"))
+ return true;
+
+ if (p->fstype && streq(p->fstype, "rbind"))
+ return true;
+
+ return false;
+}
+
+static bool mount_is_auto(MountParameters *p) {
+ assert(p);
+
+ return !mount_test_option(p->options, "noauto");
+}
+
+static bool needs_quota(MountParameters *p) {
+ assert(p);
+
+ if (mount_is_network(p))
+ return false;
+
+ if (mount_is_bind(p))
+ return false;
+
+ return mount_test_option(p->options, "usrquota") ||
+ mount_test_option(p->options, "grpquota") ||
+ mount_test_option(p->options, "quota") ||
+ mount_test_option(p->options, "usrjquota") ||
+ mount_test_option(p->options, "grpjquota");
+}
+
static void mount_init(Unit *u) {
Mount *m = MOUNT(u);
assert(u);
assert(u->load_state == UNIT_STUB);
- m->timeout_usec = DEFAULT_TIMEOUT_USEC;
+ m->timeout_usec = u->manager->default_timeout_start_usec;
m->directory_mode = 0755;
exec_context_init(&m->exec_context);
+ kill_context_init(&m->kill_context);
+ cgroup_context_init(&m->cgroup_context);
if (unit_has_name(u, "-.mount")) {
/* Don't allow start/stop for root directory */
- UNIT(m)->refuse_manual_start = true;
- UNIT(m)->refuse_manual_stop = true;
+ u->refuse_manual_start = true;
+ u->refuse_manual_stop = true;
} else {
/* The stdio/kmsg bridge socket is on /, in order to avoid a
* dep loop, don't use kmsg logging for -.mount */
m->exec_context.std_error = u->manager->default_std_error;
}
- kill_context_init(&m->kill_context);
-
/* We need to make sure that /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;
- m->timer_watch.type = WATCH_INVALID;
-
m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
- UNIT(m)->ignore_on_isolate = true;
+ u->ignore_on_isolate = true;
+}
+
+static int mount_arm_timer(Mount *m) {
+ int r;
+
+ assert(m);
+
+ if (m->timeout_usec <= 0) {
+ m->timer_event_source = sd_event_source_unref(m->timer_event_source);
+ return 0;
+ }
+
+ if (m->timer_event_source) {
+ r = sd_event_source_set_time(m->timer_event_source, now(CLOCK_MONOTONIC) + m->timeout_usec);
+ if (r < 0)
+ return r;
+
+ return sd_event_source_set_enabled(m->timer_event_source, SD_EVENT_ONESHOT);
+ }
+
+ return sd_event_add_monotonic(UNIT(m)->manager->event, now(CLOCK_MONOTONIC) + m->timeout_usec, 0, mount_dispatch_timer, m, &m->timer_event_source);
}
static void mount_unwatch_control_pid(Mount *m) {
mount_parameters_done(&m->parameters_proc_self_mountinfo);
mount_parameters_done(&m->parameters_fragment);
+ cgroup_context_done(&m->cgroup_context);
exec_context_done(&m->exec_context);
+ m->exec_runtime = exec_runtime_unref(m->exec_runtime);
exec_command_done_array(m->exec_command, _MOUNT_EXEC_COMMAND_MAX);
m->control_command = NULL;
mount_unwatch_control_pid(m);
- unit_unwatch_timer(u, &m->timer_watch);
+ m->timer_event_source = sd_event_source_unref(m->timer_event_source);
}
-static MountParameters* get_mount_parameters_fragment(Mount *m) {
+_pure_ static MountParameters* get_mount_parameters_fragment(Mount *m) {
assert(m);
if (m->from_fragment)
return NULL;
}
-static MountParameters* get_mount_parameters(Mount *m) {
+_pure_ static MountParameters* get_mount_parameters(Mount *m) {
assert(m);
if (m->from_proc_self_mountinfo)
}
static int mount_add_mount_links(Mount *m) {
- Unit *other;
- int r;
+ _cleanup_free_ char *parent = NULL;
MountParameters *pm;
-
- assert(m);
-
- pm = get_mount_parameters_fragment(m);
-
- /* Adds in links to other mount points that might lie below or
- * above us in the hierarchy */
-
- LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_MOUNT]) {
- Mount *n = MOUNT(other);
- MountParameters *pn;
-
- if (n == m)
- continue;
-
- if (UNIT(n)->load_state != UNIT_LOADED)
- continue;
-
- pn = get_mount_parameters_fragment(n);
-
- if (path_startswith(m->where, n->where)) {
-
- if ((r = unit_add_dependency(UNIT(m), UNIT_AFTER, UNIT(n), true)) < 0)
- return r;
-
- if (pn)
- if ((r = unit_add_dependency(UNIT(m), UNIT_REQUIRES, UNIT(n), true)) < 0)
- return r;
-
- } else if (path_startswith(n->where, m->where)) {
-
- if ((r = unit_add_dependency(UNIT(n), UNIT_AFTER, UNIT(m), true)) < 0)
- return r;
-
- if (pm)
- if ((r = unit_add_dependency(UNIT(n), UNIT_REQUIRES, UNIT(m), true)) < 0)
- return r;
-
- } else if (pm && pm->what && path_startswith(pm->what, n->where)) {
-
- if ((r = unit_add_dependency(UNIT(m), UNIT_AFTER, UNIT(n), true)) < 0)
- return r;
-
- if ((r = unit_add_dependency(UNIT(m), UNIT_REQUIRES, UNIT(n), true)) < 0)
- return r;
-
- } else if (pn && pn->what && path_startswith(pn->what, m->where)) {
-
- if ((r = unit_add_dependency(UNIT(n), UNIT_AFTER, UNIT(m), true)) < 0)
- return r;
-
- if ((r = unit_add_dependency(UNIT(n), UNIT_REQUIRES, UNIT(m), true)) < 0)
- return r;
- }
- }
-
- return 0;
-}
-
-static int mount_add_swap_links(Mount *m) {
Unit *other;
+ Iterator i;
+ Set *s;
int r;
assert(m);
- LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_SWAP]) {
- r = swap_add_one_mount_link(SWAP(other), m);
+ if (!path_equal(m->where, "/")) {
+ /* Adds in links to other mount points that might lie further
+ * up in the hierarchy */
+ r = path_get_parent(m->where, &parent);
if (r < 0)
return r;
- }
-
- return 0;
-}
-static int mount_add_path_links(Mount *m) {
- Unit *other;
- int r;
-
- assert(m);
-
- LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_PATH]) {
- r = path_add_one_mount_link(PATH(other), m);
+ r = unit_require_mounts_for(UNIT(m), parent);
if (r < 0)
return r;
}
- return 0;
-}
-
-static int mount_add_automount_links(Mount *m) {
- Unit *other;
- int r;
-
- assert(m);
+ /* Adds in links to other mount points that might be needed
+ * for the source path (if this is a bind mount) to be
+ * available. */
+ pm = get_mount_parameters_fragment(m);
+ if (pm && pm->what &&
+ path_is_absolute(pm->what) &&
+ !mount_is_network(pm)) {
- LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_AUTOMOUNT]) {
- r = automount_add_one_mount_link(AUTOMOUNT(other), m);
+ r = unit_require_mounts_for(UNIT(m), pm->what);
if (r < 0)
return r;
}
- return 0;
-}
+ /* Adds in links to other units that use this path or paths
+ * further down in the hierarchy */
+ s = manager_get_units_requiring_mounts_for(UNIT(m)->manager, m->where);
+ SET_FOREACH(other, s, i) {
-static int mount_add_socket_links(Mount *m) {
- Unit *other;
- int r;
+ if (other->load_state != UNIT_LOADED)
+ continue;
- assert(m);
+ if (other == UNIT(m))
+ continue;
- LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_SOCKET]) {
- r = socket_add_one_mount_link(SOCKET(other), m);
+ r = unit_add_dependency(other, UNIT_AFTER, UNIT(m), true);
if (r < 0)
return r;
- }
- return 0;
-}
-
-static int mount_add_requires_mounts_links(Mount *m) {
- Unit *other;
- int r;
-
- assert(m);
-
- LIST_FOREACH(has_requires_mounts_for, other, UNIT(m)->manager->has_requires_mounts_for) {
- r = unit_add_one_mount_link(other, m);
- if (r < 0)
- return r;
+ if (UNIT(m)->fragment_path) {
+ /* If we have fragment configuration, then make this dependency required */
+ r = unit_add_dependency(other, UNIT_REQUIRES, UNIT(m), true);
+ if (r < 0)
+ return r;
+ }
}
return 0;
}
-static char* 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 NULL;
-
- zero(me);
- me.mnt_opts = (char*) haystack;
-
- return hasmntopt(&me, needle);
-}
-
-static bool mount_is_network(MountParameters *p) {
- assert(p);
-
- if (mount_test_option(p->options, "_netdev"))
- return true;
-
- if (p->fstype && fstype_is_network(p->fstype))
- return true;
-
- return false;
-}
-
-static bool mount_is_bind(MountParameters *p) {
- assert(p);
-
- if (mount_test_option(p->options, "bind"))
- return true;
-
- if (p->fstype && streq(p->fstype, "bind"))
- return true;
-
- if (mount_test_option(p->options, "rbind"))
- return true;
-
- if (p->fstype && streq(p->fstype, "rbind"))
- return true;
-
- return false;
-}
-
-static bool needs_quota(MountParameters *p) {
- assert(p);
-
- if (mount_is_network(p))
- return false;
-
- if (mount_is_bind(p))
- return false;
-
- return mount_test_option(p->options, "usrquota") ||
- mount_test_option(p->options, "grpquota") ||
- mount_test_option(p->options, "quota") ||
- mount_test_option(p->options, "usrjquota") ||
- mount_test_option(p->options, "grpjquota");
-}
-
static int mount_add_device_links(Mount *m) {
MountParameters *p;
+ bool device_wants_mount = false;
int r;
assert(m);
if (path_equal(m->where, "/"))
return 0;
- r = unit_add_node_link(UNIT(m), p->what, false);
+ if (mount_is_auto(p) && UNIT(m)->manager->running_as == SYSTEMD_SYSTEM)
+ device_wants_mount = true;
+
+ r = unit_add_node_link(UNIT(m), p->what, device_wants_mount);
if (r < 0)
return r;
- if (p->passno > 0 &&
- UNIT(m)->manager->running_as == SYSTEMD_SYSTEM) {
- char *name;
- Unit *fsck;
- /* Let's add in the fsck service */
-
- /* aka SPECIAL_FSCK_SERVICE */
- name = unit_name_from_path_instance("systemd-fsck", p->what, ".service");
- if (!name)
- return -ENOMEM;
-
- r = manager_load_unit_prepare(UNIT(m)->manager, name, NULL, NULL, &fsck);
- if (r < 0) {
- log_warning_unit(name,
- "Failed to prepare unit %s: %s", name, strerror(-r));
- free(name);
- return r;
- }
- free(name);
-
- SERVICE(fsck)->fsck_passno = p->passno;
-
- r = unit_add_two_dependencies(UNIT(m), UNIT_AFTER, UNIT_REQUIRES, fsck, true);
- if (r < 0)
- return r;
- }
-
return 0;
}
return 0;
}
+static bool should_umount(Mount *m) {
+ MountParameters *p;
+
+ if (path_equal(m->where, "/") ||
+ path_equal(m->where, "/usr"))
+ return false;
+
+ p = get_mount_parameters(m);
+ if (p && mount_test_option(p->options, "x-initrd.mount") &&
+ !in_initrd())
+ return false;
+
+ return true;
+}
+
static int mount_add_default_dependencies(Mount *m) {
- int r;
+ const char *after, *after2, *online;
MountParameters *p;
- const char *after;
+ int r;
assert(m);
if (path_equal(m->where, "/"))
return 0;
- if (mount_is_network(p))
+ if (mount_is_network(p)) {
after = SPECIAL_REMOTE_FS_PRE_TARGET;
- else
+ after2 = SPECIAL_NETWORK_TARGET;
+ online = SPECIAL_NETWORK_ONLINE_TARGET;
+ } else {
after = SPECIAL_LOCAL_FS_PRE_TARGET;
+ after2 = NULL;
+ online = NULL;
+ }
- r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_WANTS, UNIT_AFTER, after, NULL, true);
+ r = unit_add_dependency_by_name(UNIT(m), UNIT_AFTER, after, NULL, true);
if (r < 0)
return r;
- r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
- if (r < 0)
- return r;
+ if (after2) {
+ r = unit_add_dependency_by_name(UNIT(m), UNIT_AFTER, after2, NULL, true);
+ if (r < 0)
+ return r;
+ }
+
+ if (online) {
+ r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_WANTS, UNIT_AFTER, online, NULL, true);
+ if (r < 0)
+ return r;
+ }
+
+ if (should_umount(m)) {
+ r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
+ if (r < 0)
+ return r;
+ }
return 0;
}
if (!t)
return -ENOMEM;
- r = parse_usec(t, &u);
+ r = parse_sec(t, &u);
free(t);
if (r < 0) {
}
static int mount_verify(Mount *m) {
+ _cleanup_free_ char *e = NULL;
bool b;
- char *e;
+
assert(m);
if (UNIT(m)->load_state != UNIT_LOADED)
if (!m->from_fragment && !m->from_proc_self_mountinfo)
return -ENOENT;
- if (!(e = unit_name_from_path(m->where, ".mount")))
+ e = unit_name_from_path(m->where, ".mount");
+ if (!e)
return -ENOMEM;
b = unit_has_name(UNIT(m), e);
- free(e);
-
if (!b) {
- log_error_unit(UNIT(m)->id,
- "%s's Where setting doesn't match unit name. Refusing.",
- UNIT(m)->id);
+ log_error_unit(UNIT(m)->id, "%s's Where= setting doesn't match unit name. Refusing.", UNIT(m)->id);
return -EINVAL;
}
if (mount_point_is_api(m->where) || mount_point_ignore(m->where)) {
- log_error_unit(UNIT(m)->id,
- "Cannot create mount unit for API file system %s. Refusing.",
- m->where);
+ log_error_unit(UNIT(m)->id, "Cannot create mount unit for API file system %s. Refusing.", m->where);
return -EINVAL;
}
if (UNIT(m)->fragment_path && !m->parameters_fragment.what) {
- log_error_unit(UNIT(m)->id,
- "%s's What setting is missing. Refusing.", UNIT(m)->id);
+ log_error_unit(UNIT(m)->id, "%s's What setting is missing. Refusing.", UNIT(m)->id);
return -EBADMSG;
}
if (m->exec_context.pam_name && m->kill_context.kill_mode != KILL_CONTROL_GROUP) {
- log_error_unit(UNIT(m)->id,
- "%s has PAM enabled. Kill mode must be set to control-group'. Refusing.",
- UNIT(m)->id);
+ log_error_unit(UNIT(m)->id, "%s has PAM enabled. Kill mode must be set to control-group'. Refusing.",UNIT(m)->id);
return -EINVAL;
}
Unit *u = UNIT(m);
int r;
- if (UNIT(m)->fragment_path)
+ assert(m);
+
+ if (u->fragment_path)
m->from_fragment = true;
if (!m->where) {
if (r < 0)
return r;
- if (!UNIT(m)->description) {
+ if (!u->description) {
r = unit_set_description(u, m->where);
if (r < 0)
return r;
if (r < 0)
return r;
- r = mount_add_socket_links(m);
- if (r < 0)
- return r;
-
- r = mount_add_swap_links(m);
- if (r < 0)
- return r;
-
- r = mount_add_path_links(m);
- if (r < 0)
- return r;
-
- r = mount_add_requires_mounts_links(m);
- if (r < 0)
- return r;
-
- r = mount_add_automount_links(m);
- if (r < 0)
- return r;
-
r = mount_add_quota_links(m);
if (r < 0)
return r;
- if (UNIT(m)->default_dependencies) {
+ if (u->default_dependencies) {
r = mount_add_default_dependencies(m);
if (r < 0)
return r;
}
- r = unit_add_default_cgroups(u);
+ r = unit_add_default_slice(u);
if (r < 0)
return r;
if (r < 0)
return r;
+ r = unit_exec_context_defaults(u, &m->exec_context);
+ if (r < 0)
+ return r;
+
return 0;
}
r = mount_add_extras(m);
if (r < 0)
return r;
-
- r = unit_exec_context_defaults(u, &m->exec_context);
- if (r < 0)
- return r;
}
return mount_verify(m);
state != MOUNT_UNMOUNTING_SIGKILL &&
state != MOUNT_REMOUNTING_SIGTERM &&
state != MOUNT_REMOUNTING_SIGKILL) {
- unit_unwatch_timer(UNIT(m), &m->timer_watch);
+ m->timer_event_source = sd_event_source_unref(m->timer_event_source);
mount_unwatch_control_pid(m);
m->control_command = NULL;
m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
else if (m->from_proc_self_mountinfo)
new_state = MOUNT_MOUNTED;
- if (new_state != m->state) {
-
- if (new_state == MOUNT_MOUNTING ||
- new_state == MOUNT_MOUNTING_DONE ||
- new_state == MOUNT_REMOUNTING ||
- new_state == MOUNT_UNMOUNTING ||
- new_state == MOUNT_MOUNTING_SIGTERM ||
- new_state == MOUNT_MOUNTING_SIGKILL ||
- new_state == MOUNT_UNMOUNTING_SIGTERM ||
- new_state == MOUNT_UNMOUNTING_SIGKILL ||
- new_state == MOUNT_REMOUNTING_SIGTERM ||
- new_state == MOUNT_REMOUNTING_SIGKILL) {
-
- if (m->control_pid <= 0)
- return -EBADMSG;
-
- r = unit_watch_pid(UNIT(m), m->control_pid);
- if (r < 0)
- return r;
+ if (new_state == m->state)
+ return 0;
- r = unit_watch_timer(UNIT(m), CLOCK_MONOTONIC, true, m->timeout_usec, &m->timer_watch);
- if (r < 0)
- return r;
- }
+ if (new_state == MOUNT_MOUNTING ||
+ new_state == MOUNT_MOUNTING_DONE ||
+ new_state == MOUNT_REMOUNTING ||
+ new_state == MOUNT_UNMOUNTING ||
+ new_state == MOUNT_MOUNTING_SIGTERM ||
+ new_state == MOUNT_MOUNTING_SIGKILL ||
+ new_state == MOUNT_UNMOUNTING_SIGTERM ||
+ new_state == MOUNT_UNMOUNTING_SIGKILL ||
+ new_state == MOUNT_REMOUNTING_SIGTERM ||
+ new_state == MOUNT_REMOUNTING_SIGKILL) {
+
+ if (m->control_pid <= 0)
+ return -EBADMSG;
+
+ r = unit_watch_pid(UNIT(m), m->control_pid);
+ if (r < 0)
+ return r;
- mount_set_state(m, new_state);
+ r = mount_arm_timer(m);
+ if (r < 0)
+ return r;
}
+ mount_set_state(m, new_state);
return 0;
}
prefix, mount_state_to_string(m->state),
prefix, mount_result_to_string(m->result),
prefix, m->where,
- prefix, strna(p->what),
- prefix, strna(p->fstype),
- prefix, strna(p->options),
+ prefix, p ? strna(p->what) : "n/a",
+ prefix, p ? strna(p->fstype) : "n/a",
+ prefix, p ? strna(p->options) : "n/a",
prefix, yes_no(m->from_proc_self_mountinfo),
prefix, yes_no(m->from_fragment),
prefix, m->directory_mode);
assert(c);
assert(_pid);
- r = unit_watch_timer(UNIT(m), CLOCK_MONOTONIC, true, m->timeout_usec, &m->timer_watch);
+ unit_realize_cgroup(UNIT(m));
+
+ r = unit_setup_exec_runtime(UNIT(m));
if (r < 0)
goto fail;
- if ((r = exec_spawn(c,
- NULL,
- &m->exec_context,
- NULL, 0,
- UNIT(m)->manager->environment,
- true,
- true,
- true,
- UNIT(m)->manager->confirm_spawn,
- UNIT(m)->cgroup_bondings,
- UNIT(m)->cgroup_attributes,
- NULL,
- UNIT(m)->id,
- NULL,
- &pid)) < 0)
+ r = mount_arm_timer(m);
+ if (r < 0)
goto fail;
- if ((r = unit_watch_pid(UNIT(m), pid)) < 0)
+ r = exec_spawn(c,
+ NULL,
+ &m->exec_context,
+ NULL, 0,
+ UNIT(m)->manager->environment,
+ true,
+ true,
+ true,
+ UNIT(m)->manager->confirm_spawn,
+ UNIT(m)->manager->cgroup_supported,
+ UNIT(m)->cgroup_path,
+ UNIT(m)->id,
+ NULL,
+ m->exec_runtime,
+ &pid);
+ if (r < 0)
+ goto fail;
+
+ r = unit_watch_pid(UNIT(m), pid);
+ if (r < 0)
/* FIXME: we need to do something here */
goto fail;
return 0;
fail:
- unit_unwatch_timer(UNIT(m), &m->timer_watch);
+ m->timer_event_source = sd_event_source_unref(m->timer_event_source);
return r;
}
if (f != MOUNT_SUCCESS)
m->result = f;
+ exec_runtime_destroy(m->exec_runtime);
+ m->exec_runtime = exec_runtime_unref(m->exec_runtime);
+
mount_set_state(m, m->result != MOUNT_SUCCESS ? MOUNT_FAILED : MOUNT_DEAD);
}
goto fail;
if (r > 0) {
- r = unit_watch_timer(UNIT(m), CLOCK_MONOTONIC, true, m->timeout_usec, &m->timer_watch);
+ r = mount_arm_timer(m);
if (r < 0)
goto fail;
mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
}
-static void mount_enter_mounting_done(Mount *m) {
- assert(m);
-
- mount_set_state(m, MOUNT_MOUNTING_DONE);
-}
-
static void mount_enter_remounting(Mount *m) {
int r;
m->control_command = 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
+ if (m->parameters_fragment.options)
+ o = strappenda("remount,", m->parameters_fragment.options);
+ else
o = "remount";
r = exec_command_set(
"-t", m->parameters_fragment.fstype ? m->parameters_fragment.fstype : "auto",
"-o", o,
NULL);
-
- free(buf);
} else
r = -ENOENT;
mount_unwatch_control_pid(m);
- if ((r = mount_spawn(m, m->control_command, &m->control_pid)) < 0)
+ r = mount_spawn(m, m->control_command, &m->control_pid);
+ if (r < 0)
goto fail;
mount_set_state(m, MOUNT_REMOUNTING);
m->control_command_id = id;
m->control_command = m->exec_command + id;
}
-
} else
log_debug_unit(UNIT(m)->id,
"Unknown serialization key '%s'", key);
return 0;
}
-static UnitActiveState mount_active_state(Unit *u) {
+_pure_ static UnitActiveState mount_active_state(Unit *u) {
assert(u);
return state_translation_table[MOUNT(u)->state];
}
-static const char *mount_sub_state_to_string(Unit *u) {
+_pure_ static const char *mount_sub_state_to_string(Unit *u) {
assert(u);
return mount_state_to_string(MOUNT(u)->state);
}
-static bool mount_check_gc(Unit *u) {
+_pure_ static bool mount_check_gc(Unit *u) {
Mount *m = MOUNT(u);
assert(m);
unit_add_to_dbus_queue(u);
}
-static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
- Mount *m = MOUNT(u);
+static int mount_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
+ Mount *m = MOUNT(userdata);
assert(m);
- assert(elapsed == 1);
- assert(w == &m->timer_watch);
+ assert(m->timer_event_source == source);
switch (m->state) {
case MOUNT_MOUNTING:
case MOUNT_MOUNTING_DONE:
- log_warning_unit(u->id,
- "%s mounting timed out. Stopping.", u->id);
+ log_warning_unit(UNIT(m)->id,
+ "%s mounting timed out. Stopping.", UNIT(m)->id);
mount_enter_signal(m, MOUNT_MOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
break;
case MOUNT_REMOUNTING:
- log_warning_unit(u->id,
- "%s remounting timed out. Stopping.", u->id);
+ log_warning_unit(UNIT(m)->id,
+ "%s remounting timed out. Stopping.", UNIT(m)->id);
m->reload_result = MOUNT_FAILURE_TIMEOUT;
mount_enter_mounted(m, MOUNT_SUCCESS);
break;
case MOUNT_UNMOUNTING:
- log_warning_unit(u->id,
- "%s unmounting timed out. Stopping.", u->id);
+ log_warning_unit(UNIT(m)->id,
+ "%s unmounting timed out. Stopping.", UNIT(m)->id);
mount_enter_signal(m, MOUNT_UNMOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
break;
case MOUNT_MOUNTING_SIGTERM:
if (m->kill_context.send_sigkill) {
- log_warning_unit(u->id,
- "%s mounting timed out. Killing.", u->id);
+ log_warning_unit(UNIT(m)->id,
+ "%s mounting timed out. Killing.", UNIT(m)->id);
mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
} else {
- log_warning_unit(u->id,
+ log_warning_unit(UNIT(m)->id,
"%s mounting timed out. Skipping SIGKILL. Ignoring.",
- u->id);
+ UNIT(m)->id);
if (m->from_proc_self_mountinfo)
mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
case MOUNT_REMOUNTING_SIGTERM:
if (m->kill_context.send_sigkill) {
- log_warning_unit(u->id,
- "%s remounting timed out. Killing.", u->id);
+ log_warning_unit(UNIT(m)->id,
+ "%s remounting timed out. Killing.", UNIT(m)->id);
mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
} else {
- log_warning_unit(u->id,
+ log_warning_unit(UNIT(m)->id,
"%s remounting timed out. Skipping SIGKILL. Ignoring.",
- u->id);
+ UNIT(m)->id);
if (m->from_proc_self_mountinfo)
mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
case MOUNT_UNMOUNTING_SIGTERM:
if (m->kill_context.send_sigkill) {
- log_warning_unit(u->id,
- "%s unmounting timed out. Killing.", u->id);
+ log_warning_unit(UNIT(m)->id,
+ "%s unmounting timed out. Killing.", UNIT(m)->id);
mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
} else {
- log_warning_unit(u->id,
+ log_warning_unit(UNIT(m)->id,
"%s unmounting timed out. Skipping SIGKILL. Ignoring.",
- u->id);
+ UNIT(m)->id);
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_warning_unit(u->id,
+ log_warning_unit(UNIT(m)->id,
"%s mount process still around after SIGKILL. Ignoring.",
- u->id);
+ UNIT(m)->id);
if (m->from_proc_self_mountinfo)
mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
default:
assert_not_reached("Timeout at wrong time.");
}
+
+ return 0;
}
static int mount_add_one(
const char *where,
const char *options,
const char *fstype,
- int passno,
bool set_flags) {
int r;
Unit *u;
u = manager_get_unit(m, e);
if (!u) {
+ const char* const target =
+ fstype_is_network(fstype) ? SPECIAL_REMOTE_FS_TARGET : SPECIAL_LOCAL_FS_TARGET;
+
delete = true;
u = unit_new(m, sizeof(Mount));
goto fail;
}
+ r = unit_add_dependency_by_name(u, UNIT_BEFORE, target, NULL, true);
+ if (r < 0)
+ goto fail;
+
+ if (should_umount(MOUNT(u))) {
+ r = unit_add_dependency_by_name(u, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true);
+ if (r < 0)
+ goto fail;
+ }
+
unit_add_to_load_queue(u);
} else {
delete = false;
}
}
- if (u->load_state == UNIT_ERROR) {
+ if (u->load_state == UNIT_NOT_FOUND) {
u->load_state = UNIT_LOADED;
u->load_error = 0;
free(p->fstype);
p->fstype = f;
- p->passno = passno;
-
if (load_extras) {
r = mount_add_extras(MOUNT(u));
if (r < 0)
static int mount_load_proc_self_mountinfo(Manager *m, bool set_flags) {
int r = 0;
unsigned i;
- char *device, *path, *options, *options2, *fstype, *d, *p, *o;
assert(m);
rewind(m->proc_self_mountinfo);
for (i = 1;; i++) {
+ _cleanup_free_ char *device = NULL, *path = NULL, *options = NULL, *options2 = NULL, *fstype = NULL, *d = NULL, *p = NULL, *o = NULL;
int k;
- device = path = options = options2 = fstype = d = p = o = NULL;
-
- if ((k = fscanf(m->proc_self_mountinfo,
- "%*s " /* (1) mount id */
- "%*s " /* (2) parent id */
- "%*s " /* (3) major:minor */
- "%*s " /* (4) root */
- "%ms " /* (5) mount point */
- "%ms" /* (6) mount options */
- "%*[^-]" /* (7) optional fields */
- "- " /* (8) separator */
- "%ms " /* (9) file system type */
- "%ms" /* (10) mount source */
- "%ms" /* (11) mount options 2 */
- "%*[^\n]", /* some rubbish at the end */
- &path,
- &options,
- &fstype,
- &device,
- &options2)) != 5) {
-
- if (k == EOF)
- break;
-
+ k = fscanf(m->proc_self_mountinfo,
+ "%*s " /* (1) mount id */
+ "%*s " /* (2) parent id */
+ "%*s " /* (3) major:minor */
+ "%*s " /* (4) root */
+ "%ms " /* (5) mount point */
+ "%ms" /* (6) mount options */
+ "%*[^-]" /* (7) optional fields */
+ "- " /* (8) separator */
+ "%ms " /* (9) file system type */
+ "%ms" /* (10) mount source */
+ "%ms" /* (11) mount options 2 */
+ "%*[^\n]", /* some rubbish at the end */
+ &path,
+ &options,
+ &fstype,
+ &device,
+ &options2);
+
+ if (k == EOF)
+ break;
+
+ if (k != 5) {
log_warning("Failed to parse /proc/self/mountinfo:%u.", i);
- goto clean_up;
+ continue;
}
o = strjoin(options, ",", options2, NULL);
- if (!o) {
- r = -ENOMEM;
- goto finish;
- }
+ if (!o)
+ return log_oom();
- if (!(d = cunescape(device)) ||
- !(p = cunescape(path))) {
- r = -ENOMEM;
- goto finish;
- }
+ d = cunescape(device);
+ p = cunescape(path);
+ if (!d || !p)
+ return log_oom();
- if ((k = mount_add_one(m, d, p, o, fstype, 0, set_flags)) < 0)
+ k = mount_add_one(m, d, p, o, fstype, set_flags);
+ if (k < 0)
r = k;
-
-clean_up:
- free(device);
- free(path);
- free(options);
- free(options2);
- free(fstype);
- free(d);
- free(p);
- free(o);
}
-finish:
- free(device);
- free(path);
- free(options);
- free(options2);
- free(fstype);
- free(d);
- free(p);
- free(o);
-
return r;
}
static void mount_shutdown(Manager *m) {
assert(m);
+ m->mount_event_source = sd_event_source_unref(m->mount_event_source);
+
if (m->proc_self_mountinfo) {
fclose(m->proc_self_mountinfo);
m->proc_self_mountinfo = NULL;
static int mount_enumerate(Manager *m) {
int r;
- struct epoll_event ev;
assert(m);
if (!m->proc_self_mountinfo) {
- if (!(m->proc_self_mountinfo = fopen("/proc/self/mountinfo", "re")))
+ m->proc_self_mountinfo = fopen("/proc/self/mountinfo", "re");
+ if (!m->proc_self_mountinfo)
return -errno;
- m->mount_watch.type = WATCH_MOUNT;
- m->mount_watch.fd = fileno(m->proc_self_mountinfo);
-
- zero(ev);
- ev.events = EPOLLPRI;
- ev.data.ptr = &m->mount_watch;
+ r = sd_event_add_io(m->event, fileno(m->proc_self_mountinfo), EPOLLPRI, mount_dispatch_io, m, &m->mount_event_source);
+ if (r < 0)
+ goto fail;
- if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->mount_watch.fd, &ev) < 0)
- return -errno;
+ /* Dispatch this before we dispatch SIGCHLD, so that
+ * we always get the events from /proc/self/mountinfo
+ * before the SIGCHLD of /bin/mount. */
+ r = sd_event_source_set_priority(m->mount_event_source, -10);
+ if (r < 0)
+ goto fail;
}
- if ((r = mount_load_proc_self_mountinfo(m, false)) < 0)
+ r = mount_load_proc_self_mountinfo(m, false);
+ if (r < 0)
goto fail;
return 0;
return r;
}
-void mount_fd_event(Manager *m, int events) {
+static int mount_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) {
+ Manager *m = userdata;
Unit *u;
int r;
assert(m);
- assert(events & EPOLLPRI);
+ assert(revents & EPOLLPRI);
/* The manager calls this for every fd event happening on the
* /proc/self/mountinfo file, which informs us about mounting
mount->is_mounted = mount->just_mounted = mount->just_changed = false;
}
- return;
+ return 0;
}
manager_dispatch_load_queue(m);
break;
case MOUNT_MOUNTING:
- mount_enter_mounting_done(mount);
+ mount_set_state(mount, MOUNT_MOUNTING_DONE);
break;
default:
/* Reset the flags for later calls */
mount->is_mounted = mount->just_mounted = mount->just_changed = false;
}
+
+ return 0;
}
static void mount_reset_failed(Unit *u) {
m->reload_result = MOUNT_SUCCESS;
}
-static int mount_kill(Unit *u, KillWho who, int signo, DBusError *error) {
+static int mount_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
return unit_kill_common(u, who, signo, -1, MOUNT(u)->control_pid, error);
}
const UnitVTable mount_vtable = {
.object_size = sizeof(Mount),
+ .exec_context_offset = offsetof(Mount, exec_context),
+ .cgroup_context_offset = offsetof(Mount, cgroup_context),
+ .kill_context_offset = offsetof(Mount, kill_context),
+ .exec_runtime_offset = offsetof(Mount, exec_runtime),
.sections =
"Unit\0"
"Mount\0"
"Install\0",
-
- .exec_context_offset = offsetof(Mount, exec_context),
- .exec_section = "Mount",
+ .private_section = "Mount",
.no_alias = true,
.no_instances = true,
.check_gc = mount_check_gc,
.sigchld_event = mount_sigchld_event,
- .timer_event = mount_timer_event,
.reset_failed = mount_reset_failed,
.bus_interface = "org.freedesktop.systemd1.Mount",
- .bus_message_handler = bus_mount_message_handler,
- .bus_invalidating_properties = bus_mount_invalidating_properties,
+ .bus_vtable = bus_mount_vtable,
+ .bus_changing_properties = bus_mount_changing_properties,
+ .bus_set_property = bus_mount_set_property,
+ .bus_commit_properties = bus_mount_commit_properties,
.enumerate = mount_enumerate,
.shutdown = mount_shutdown,
~ianmdlvl / elogind.git / blobdiff