chiark / gitweb /
service: properly handle who argument on D-Bus kill calls
[elogind.git] / src / mount.c
index ded8273590e770079d571819f338b2d25cd9f23b..d837041475ac1ac762e3dbfe6fc097798a1369af 100644 (file)
@@ -114,7 +114,7 @@ static void mount_done(Unit *u) {
         m->where = NULL;
 
         /* Try to detach us from the automount unit if there is any */
-        LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_AUTOMOUNT]) {
+        LIST_FOREACH(units_by_type, other, m->meta.manager->units_by_type[UNIT_AUTOMOUNT]) {
                 Automount *a = (Automount*) other;
 
                 if (a->mount == m)
@@ -166,7 +166,7 @@ static int mount_add_mount_links(Mount *m) {
         /* Adds in links to other mount points that might lie below or
          * above us in the hierarchy */
 
-        LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_MOUNT]) {
+        LIST_FOREACH(units_by_type, other, m->meta.manager->units_by_type[UNIT_MOUNT]) {
                 Mount *n = (Mount*) other;
                 MountParameters *pn;
 
@@ -223,7 +223,7 @@ static int mount_add_swap_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_SWAP])
+        LIST_FOREACH(units_by_type, other, m->meta.manager->units_by_type[UNIT_SWAP])
                 if ((r = swap_add_one_mount_link((Swap*) other, m)) < 0)
                         return r;
 
@@ -236,7 +236,7 @@ static int mount_add_path_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_PATH])
+        LIST_FOREACH(units_by_type, other, m->meta.manager->units_by_type[UNIT_PATH])
                 if ((r = path_add_one_mount_link((Path*) other, m)) < 0)
                         return r;
 
@@ -249,7 +249,7 @@ static int mount_add_automount_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_AUTOMOUNT])
+        LIST_FOREACH(units_by_type, other, m->meta.manager->units_by_type[UNIT_AUTOMOUNT])
                 if ((r = automount_add_one_mount_link((Automount*) other, m)) < 0)
                         return r;
 
@@ -262,7 +262,7 @@ static int mount_add_socket_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_per_type, other, m->meta.manager->units_per_type[UNIT_SOCKET])
+        LIST_FOREACH(units_by_type, other, m->meta.manager->units_by_type[UNIT_SOCKET])
                 if ((r = socket_add_one_mount_link((Socket*) other, m)) < 0)
                         return r;
 
@@ -323,7 +323,7 @@ static bool needs_quota(MountParameters *p) {
                 mount_test_option(p->options, "grpquota");
 }
 
-static int mount_add_target_links(Mount *m) {
+static int mount_add_fstab_links(Mount *m) {
         const char *target, *after = NULL;
         MountParameters *p;
         Unit *tu;
@@ -332,27 +332,36 @@ static int mount_add_target_links(Mount *m) {
 
         assert(m);
 
+        if (m->meta.manager->running_as != MANAGER_SYSTEM)
+                return 0;
+
         if (!(p = get_mount_parameters_configured(m)))
                 return 0;
 
-        noauto = !!mount_test_option(p->options, MNTOPT_NOAUTO);
+        if (p != &m->parameters_etc_fstab)
+                return 0;
+
+        noauto = !!mount_test_option(p->options, "noauto");
         nofail = !!mount_test_option(p->options, "nofail");
+        automount =
+                mount_test_option(p->options, "comment=systemd.automount") ||
+                mount_test_option(p->options, "x-systemd-automount");
         handle =
+                automount ||
                 mount_test_option(p->options, "comment=systemd.mount") ||
                 mount_test_option(p->options, "x-systemd-mount") ||
                 m->meta.manager->mount_auto;
-        automount =
-                mount_test_option(p->options, "comment=systemd.automount") ||
-                mount_test_option(p->options, "x-systemd-automount");
 
         if (mount_is_network(p)) {
                 target = SPECIAL_REMOTE_FS_TARGET;
-
-                if (m->meta.manager->running_as == MANAGER_SYSTEM)
-                        after = SPECIAL_NETWORK_TARGET;
+                after = SPECIAL_NETWORK_TARGET;
         } else
                 target = SPECIAL_LOCAL_FS_TARGET;
 
+        if (!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;
+
         if ((r = manager_load_unit(m->meta.manager, target, NULL, NULL, &tu)) < 0)
                 return r;
 
@@ -360,27 +369,36 @@ static int mount_add_target_links(Mount *m) {
                 if ((r = unit_add_dependency_by_name(UNIT(m), UNIT_AFTER, after, NULL, true)) < 0)
                         return r;
 
-        if (automount && m->meta.manager->running_as == MANAGER_SYSTEM) {
+        if (automount) {
                 Unit *am;
 
                 if ((r = unit_load_related_unit(UNIT(m), ".automount", &am)) < 0)
                         return r;
 
-                return unit_add_two_dependencies(tu, UNIT_AFTER, UNIT_WANTS, UNIT(am), true);
-        } else {
+                /* If auto is configured as well also pull in the
+                 * mount right-away, but don't rely on it. */
+                if (!noauto) /* automount + auto */
+                        if ((r = unit_add_dependency(tu, UNIT_WANTS, UNIT(m), true)) < 0)
+                                return r;
+
+                /* Install automount unit */
+                if (!nofail) /* automount + fail */
+                        return unit_add_two_dependencies(tu, UNIT_AFTER, UNIT_REQUIRES, UNIT(am), true);
+                else /* automount + nofail */
+                        return unit_add_two_dependencies(tu, UNIT_AFTER, UNIT_WANTS, UNIT(am), true);
+
+        } else if (handle && !noauto) {
 
                 /* Automatically add mount points that aren't natively
                  * configured to local-fs.target */
-                if (!noauto &&
-                    !nofail &&
-                    handle &&
-                    m->from_etc_fstab &&
-                    m->meta.manager->running_as == MANAGER_SYSTEM)
-                        if ((r = unit_add_dependency(tu, UNIT_WANTS, UNIT(m), true)) < 0)
-                                return r;
 
-                return unit_add_dependency(UNIT(m), UNIT_BEFORE, tu, true);
+                if (!nofail) /* auto + fail */
+                        return unit_add_two_dependencies(tu, UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true);
+                else /* auto + nofail */
+                        return unit_add_dependency(tu, UNIT_WANTS, UNIT(m), true);
         }
+
+        return 0;
 }
 
 static int mount_add_device_links(Mount *m) {
@@ -395,10 +413,12 @@ static int mount_add_device_links(Mount *m) {
         if (!p->what)
                 return 0;
 
-        if (!mount_is_bind(p) && !path_equal(m->where, "/")) {
+        if (!mount_is_bind(p) &&
+            !path_equal(m->where, "/") &&
+            p == &m->parameters_etc_fstab) {
                 bool nofail, noauto;
 
-                noauto = !!mount_test_option(p->options, MNTOPT_NOAUTO);
+                noauto = !!mount_test_option(p->options, "noauto");
                 nofail = !!mount_test_option(p->options, "nofail");
 
                 if ((r = unit_add_node_link(UNIT(m), p->what,
@@ -460,17 +480,19 @@ static int mount_add_default_dependencies(Mount *m) {
         return 0;
 }
 
-static void mount_fix_timeouts(Mount *m) {
+static int mount_fix_timeouts(Mount *m) {
         MountParameters *p;
         const char *timeout = NULL;
         Unit *other;
         Iterator i;
         usec_t u;
+        char *t;
+        int r;
 
         assert(m);
 
         if (!(p = get_mount_parameters_configured(m)))
-                return;
+                return 0;
 
         /* Allow configuration how long we wait for a device that
          * backs a mount point to show up. This is useful to support
@@ -482,11 +504,18 @@ static void mount_fix_timeouts(Mount *m) {
         else if ((timeout = mount_test_option(p->options, "x-systemd-device-timeout")))
                 timeout += 25;
         else
-                return;
+                return 0;
 
-        if (parse_usec(timeout, &u) < 0) {
+        t = strndup(timeout, strcspn(timeout, ",;" WHITESPACE));
+        if (!t)
+                return -ENOMEM;
+
+        r = parse_usec(t, &u);
+        free(t);
+
+        if (r < 0) {
                 log_warning("Failed to parse timeout for %s, ignoring: %s", m->where, timeout);
-                return;
+                return r;
         }
 
         SET_FOREACH(other, m->meta.dependencies[UNIT_AFTER], i) {
@@ -495,6 +524,8 @@ static void mount_fix_timeouts(Mount *m) {
 
                 other->meta.job_timeout = u;
         }
+
+        return 0;
 }
 
 static int mount_verify(Mount *m) {
@@ -554,6 +585,8 @@ static int mount_load(Unit *u) {
 
                 if (m->meta.fragment_path)
                         m->from_fragment = true;
+                else if (m->from_etc_fstab)
+                        m->meta.default_dependencies = false;
 
                 if (!m->where)
                         if (!(m->where = unit_name_to_path(u->meta.id)))
@@ -583,16 +616,16 @@ static int mount_load(Unit *u) {
                 if ((r = mount_add_automount_links(m)) < 0)
                         return r;
 
-                if ((r = mount_add_target_links(m)) < 0)
-                        return r;
-
-                if ((r = unit_add_default_cgroups(u)) < 0)
+                if ((r = mount_add_fstab_links(m)) < 0)
                         return r;
 
                 if (m->meta.default_dependencies)
                         if ((r = mount_add_default_dependencies(m)) < 0)
                                 return r;
 
+                if ((r = unit_add_default_cgroups(u)) < 0)
+                        return r;
+
                 mount_fix_timeouts(m);
         }
 
@@ -1179,7 +1212,7 @@ 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_exit(&m->control_command->exec_status, pid, code, status, m->exec_context.utmp_id);
+                exec_status_exit(&m->control_command->exec_status, &m->exec_context, pid, code, status);
                 m->control_command = NULL;
                 m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
         }
@@ -1499,7 +1532,7 @@ static int mount_load_etc_fstab(Manager *m) {
                                                  what,
                                                  NULL,
                                                  pri,
-                                                 !!mount_test_option(me->mnt_opts, MNTOPT_NOAUTO),
+                                                 !!mount_test_option(me->mnt_opts, "noauto"),
                                                  !!mount_test_option(me->mnt_opts, "nofail"),
                                                  !!mount_test_option(me->mnt_opts, "comment=systemd.swapon"),
                                                  false);
@@ -1654,7 +1687,7 @@ void mount_fd_event(Manager *m, int events) {
                 log_error("Failed to reread /proc/self/mountinfo: %s", strerror(-r));
 
                 /* Reset flags, just in case, for later calls */
-                LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_MOUNT]) {
+                LIST_FOREACH(units_by_type, meta, m->units_by_type[UNIT_MOUNT]) {
                         Mount *mount = (Mount*) meta;
 
                         mount->is_mounted = mount->just_mounted = mount->just_changed = false;
@@ -1665,7 +1698,7 @@ void mount_fd_event(Manager *m, int events) {
 
         manager_dispatch_load_queue(m);
 
-        LIST_FOREACH(units_per_type, meta, m->units_per_type[UNIT_MOUNT]) {
+        LIST_FOREACH(units_by_type, meta, m->units_by_type[UNIT_MOUNT]) {
                 Mount *mount = (Mount*) meta;
 
                 if (!mount->is_mounted) {
@@ -1744,11 +1777,12 @@ static int mount_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError
                 return -ENOENT;
         }
 
-        if (m->control_pid > 0)
-                if (kill(m->control_pid, signo) < 0)
-                        r = -errno;
+        if (who == KILL_CONTROL || who == KILL_ALL)
+                if (m->control_pid > 0)
+                        if (kill(m->control_pid, signo) < 0)
+                                r = -errno;
 
-        if (mode == KILL_CONTROL_GROUP) {
+        if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
                 int q;
 
                 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
@@ -1762,7 +1796,7 @@ static int mount_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError
                         }
 
                 if ((q = cgroup_bonding_kill_list(m->meta.cgroup_bondings, signo, false, pid_set)) < 0)
-                        if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+                        if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
                                 r = q;
         }