mount: add implicit umount.target conflicts only in system mode

[elogind.git] / src / mount.c

diff --git a/src/mount.c b/src/mount.c
index 5c16f86d539213e46270e9b87c4c6beab21527d1..36caae3c812d7ee6299a743072449be926872b0b 100644 (file)
--- a/src/mount.c
+++ b/src/mount.c
@@ -42,15 +42,15 @@ static const UnitActiveState state_translation_table[_MOUNT_STATE_MAX] = {
         [MOUNT_MOUNTING] = UNIT_ACTIVATING,
         [MOUNT_MOUNTING_DONE] = UNIT_ACTIVE,
         [MOUNT_MOUNTED] = UNIT_ACTIVE,
-        [MOUNT_REMOUNTING] = UNIT_ACTIVE_RELOADING,
+        [MOUNT_REMOUNTING] = UNIT_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_REMOUNTING_SIGTERM] = UNIT_RELOADING,
+        [MOUNT_REMOUNTING_SIGKILL] = UNIT_RELOADING,
         [MOUNT_UNMOUNTING_SIGTERM] = UNIT_DEACTIVATING,
         [MOUNT_UNMOUNTING_SIGKILL] = UNIT_DEACTIVATING,
-        [MOUNT_MAINTENANCE] = UNIT_INACTIVE,
+        [MOUNT_MAINTENANCE] = UNIT_MAINTENANCE
 };
 
 static void mount_init(Unit *u) {
@@ -60,13 +60,15 @@ static void mount_init(Unit *u) {
         assert(u->meta.load_state == UNIT_STUB);
 
         m->timeout_usec = DEFAULT_TIMEOUT_USEC;
+        m->directory_mode = 0755;
+
         exec_context_init(&m->exec_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.no_setsid = true;
+        m->exec_context.same_pgrp = true;
 
         m->timer_watch.type = WATCH_INVALID;
 
@@ -251,7 +253,7 @@ static int mount_add_target_links(Mount *m) {
         else
                 target = SPECIAL_LOCAL_FS_TARGET;
 
-        if ((r = manager_load_unit(UNIT(m)->meta.manager, target, NULL, &tu)) < 0)
+        if ((r = manager_load_unit(m->meta.manager, target, NULL, NULL, &tu)) < 0)
                 return r;
 
         if (automount && m->meta.manager->running_as == MANAGER_SYSTEM) {
@@ -260,11 +262,7 @@ static int mount_add_target_links(Mount *m) {
                 if ((r = unit_load_related_unit(UNIT(m), ".automount", &am)) < 0)
                         return r;
 
-                if ((r = unit_add_dependency(tu, UNIT_WANTS, UNIT(am), true)) < 0)
-                        return r;
-
-                return unit_add_dependency(UNIT(am), UNIT_BEFORE, tu, true);
-
+                return unit_add_two_dependencies(tu, UNIT_AFTER, UNIT_WANTS, UNIT(am), true);
         } else {
 
                 if (!noauto && handle)
@@ -294,15 +292,20 @@ static int mount_verify(Mount *m) {
         free(e);
 
         if (!b) {
-                log_error("%s's Where setting doesn't match unit name. Refusing.", UNIT(m)->meta.id);
+                log_error("%s's Where setting doesn't match unit name. Refusing.", m->meta.id);
                 return -EINVAL;
         }
 
         if (m->meta.fragment_path && !m->parameters_fragment.what) {
-                log_error("%s's What setting is missing. Refusing.", UNIT(m)->meta.id);
+                log_error("%s's What setting is missing. Refusing.", m->meta.id);
                 return -EBADMSG;
         }
 
+        if (m->exec_context.pam_name && m->kill_mode != KILL_CONTROL_GROUP) {
+                log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", m->meta.id);
+                return -EINVAL;
+        }
+
         return 0;
 }
 
@@ -364,6 +367,12 @@ static int mount_load(Unit *u) {
 
                 if ((r = unit_add_default_cgroup(u)) < 0)
                         return r;
+
+                if (m->meta.default_dependencies &&
+                    m->meta.manager->running_as == MANAGER_SYSTEM &&
+                    !path_equal(m->where, "/"))
+                        if ((r = unit_add_two_dependencies_by_name(UNIT(m), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true)) < 0)
+                                return r;
         }
 
         return mount_verify(m);
@@ -420,7 +429,7 @@ static void mount_set_state(Mount *m, MountState state) {
 
         if (state != old_state)
                 log_debug("%s changed %s -> %s",
-                          UNIT(m)->meta.id,
+                          m->meta.id,
                           mount_state_to_string(old_state),
                           mount_state_to_string(state));
 
@@ -492,7 +501,8 @@ static void mount_dump(Unit *u, FILE *f, const char *prefix) {
                 "%sFrom /etc/fstab: %s\n"
                 "%sFrom /proc/self/mountinfo: %s\n"
                 "%sFrom fragment: %s\n"
-                "%sKillMode: %s\n",
+                "%sKillMode: %s\n"
+                "%sDirectoryMode: %04o\n",
                 prefix, mount_state_to_string(m->state),
                 prefix, m->where,
                 prefix, strna(p->what),
@@ -501,12 +511,13 @@ static void mount_dump(Unit *u, FILE *f, const char *prefix) {
                 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));
+                prefix, kill_mode_to_string(m->kill_mode),
+                prefix, m->directory_mode);
 
         if (m->control_pid > 0)
                 fprintf(f,
-                        "%sControl PID: %llu\n",
-                        prefix, (unsigned long long) m->control_pid);
+                        "%sControl PID: %lu\n",
+                        prefix, (unsigned long) m->control_pid);
 
         exec_context_dump(&m->exec_context, f, prefix);
 }
@@ -529,8 +540,9 @@ static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
                             m->meta.manager->environment,
                             true,
                             true,
-                            UNIT(m)->meta.manager->confirm_spawn,
-                            UNIT(m)->meta.cgroup_bondings,
+                            true,
+                            m->meta.manager->confirm_spawn,
+                            m->meta.cgroup_bondings,
                             &pid)) < 0)
                 goto fail;
 
@@ -582,7 +594,7 @@ static void mount_enter_signal(Mount *m, MountState state, bool success) {
 
                 if (m->kill_mode == KILL_CONTROL_GROUP) {
 
-                        if ((r = cgroup_bonding_kill_list(UNIT(m)->meta.cgroup_bondings, sig)) < 0) {
+                        if ((r = cgroup_bonding_kill_list(m->meta.cgroup_bondings, sig)) < 0) {
                                 if (r != -EAGAIN && r != -ESRCH)
                                         goto fail;
                         } else
@@ -609,7 +621,7 @@ static void mount_enter_signal(Mount *m, MountState state, bool success) {
         return;
 
 fail:
-        log_warning("%s failed to kill processes: %s", UNIT(m)->meta.id, strerror(-r));
+        log_warning("%s failed to kill processes: %s", m->meta.id, strerror(-r));
 
         if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
                 mount_enter_mounted(m, false);
@@ -645,7 +657,7 @@ static void mount_enter_unmounting(Mount *m, bool success) {
         return;
 
 fail:
-        log_warning("%s failed to run 'umount' task: %s", UNIT(m)->meta.id, strerror(-r));
+        log_warning("%s failed to run 'umount' task: %s", m->meta.id, strerror(-r));
         mount_enter_mounted(m, false);
 }
 
@@ -657,6 +669,8 @@ static void mount_enter_mounting(Mount *m) {
         m->control_command_id = MOUNT_EXEC_MOUNT;
         m->control_command = m->exec_command + MOUNT_EXEC_MOUNT;
 
+        mkdir_p(m->where, m->directory_mode);
+
         if (m->from_fragment)
                 r = exec_command_set(
                                 m->control_command,
@@ -688,7 +702,7 @@ static void mount_enter_mounting(Mount *m) {
         return;
 
 fail:
-        log_warning("%s failed to run 'mount' task: %s", UNIT(m)->meta.id, strerror(-r));
+        log_warning("%s failed to run 'mount' task: %s", m->meta.id, strerror(-r));
         mount_enter_dead(m, false);
 }
 
@@ -929,7 +943,7 @@ static void mount_sigchld_event(Unit *u, pid_t pid, int code, int status) {
         m->failure = m->failure || !success;
 
         if (m->control_command) {
-                exec_status_fill(&m->control_command->exec_status, pid, code, status);
+                exec_status_exit(&m->control_command->exec_status, pid, code, status);
                 m->control_command = NULL;
                 m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
         }
@@ -1541,6 +1555,7 @@ const UnitVTable mount_vtable = {
         .no_alias = true,
         .no_instances = true,
         .no_isolate = true,
+        .show_status = true,
 
         .init = mount_init,
         .load = mount_load,