X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fmount.c;h=25bc7e197a12a066bded44d829aa0aeee505b474;hp=14f4863dc6b410f9f4d1f5a99dacc3d02c7d1d1f;hb=b929bf049d33823dedb1ab2e2ac688cd341792fb;hpb=bcbd5405b1b6d9d219259e3be2c3ec4d92812bcb

diff --git a/src/core/mount.c b/src/core/mount.c
index 14f4863dc..25bc7e197 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -30,6 +30,7 @@
 #include "load-fragment.h"
 #include "load-dropin.h"
 #include "log.h"
+#include "sd-messages.h"
 #include "strv.h"
 #include "mkdir.h"
 #include "path-util.h"
@@ -221,9 +222,11 @@ static int mount_add_swap_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_SWAP])
-                if ((r = swap_add_one_mount_link(SWAP(other), m)) < 0)
+        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_SWAP]) {
+                r = swap_add_one_mount_link(SWAP(other), m);
+                if (r < 0)
                         return r;
+        }
 
         return 0;
 }
@@ -234,9 +237,11 @@ static int mount_add_path_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_PATH])
-                if ((r = path_add_one_mount_link(PATH(other), m)) < 0)
+        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_PATH]) {
+                r = path_add_one_mount_link(PATH(other), m);
+                if (r < 0)
                         return r;
+        }
 
         return 0;
 }
@@ -247,9 +252,11 @@ static int mount_add_automount_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_AUTOMOUNT])
-                if ((r = automount_add_one_mount_link(AUTOMOUNT(other), m)) < 0)
+        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_AUTOMOUNT]) {
+                r = automount_add_one_mount_link(AUTOMOUNT(other), m);
+                if (r < 0)
                         return r;
+        }
 
         return 0;
 }
@@ -260,9 +267,11 @@ static int mount_add_socket_links(Mount *m) {
 
         assert(m);
 
-        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_SOCKET])
-                if ((r = socket_add_one_mount_link(SOCKET(other), m)) < 0)
+        LIST_FOREACH(units_by_type, other, UNIT(m)->manager->units_by_type[UNIT_SOCKET]) {
+                r = socket_add_one_mount_link(SOCKET(other), m);
+                if (r < 0)
                         return r;
+        }
 
         return 0;
 }
@@ -378,7 +387,8 @@ static int mount_add_device_links(Mount *m) {
 
                 r = manager_load_unit_prepare(UNIT(m)->manager, name, NULL, NULL, &fsck);
                 if (r < 0) {
-                        log_warning("Failed to prepare unit %s: %s", name, strerror(-r));
+                        log_warning_unit(name,
+                                         "Failed to prepare unit %s: %s", name, strerror(-r));
                         free(name);
                         return r;
                 }
@@ -489,7 +499,9 @@ static int mount_fix_timeouts(Mount *m) {
         free(t);
 
         if (r < 0) {
-                log_warning("Failed to parse timeout for %s, ignoring: %s", m->where, timeout);
+                log_warning_unit(UNIT(m)->id,
+                                 "Failed to parse timeout for %s, ignoring: %s",
+                                 m->where, timeout);
                 return r;
         }
 
@@ -521,22 +533,29 @@ static int mount_verify(Mount *m) {
         free(e);
 
         if (!b) {
-                log_error("%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("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("%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("%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;
         }
 
@@ -698,15 +717,16 @@ static void mount_set_state(Mount *m, MountState state) {
                  state == MOUNT_UNMOUNTING_SIGTERM ||
                  state == MOUNT_UNMOUNTING_SIGKILL ||
                  state == MOUNT_FAILED) {
-		if (state != old_state)
-			mount_notify_automount(m, -ENODEV);
-	}
+                if (state != old_state)
+                        mount_notify_automount(m, -ENODEV);
+        }
 
         if (state != old_state)
-                log_debug("%s changed %s -> %s",
-                          UNIT(m)->id,
-                          mount_state_to_string(old_state),
-                          mount_state_to_string(state));
+                log_debug_unit(UNIT(m)->id,
+                               "%s changed %s -> %s",
+                               UNIT(m)->id,
+                               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;
@@ -741,10 +761,12 @@ static int mount_coldplug(Unit *u) {
                         if (m->control_pid <= 0)
                                 return -EBADMSG;
 
-                        if ((r = unit_watch_pid(UNIT(m), m->control_pid)) < 0)
+                        r = unit_watch_pid(UNIT(m), m->control_pid);
+                        if (r < 0)
                                 return r;
 
-                        if ((r = unit_watch_timer(UNIT(m), m->timeout_usec, &m->timer_watch)) < 0)
+                        r = unit_watch_timer(UNIT(m), CLOCK_MONOTONIC, true, m->timeout_usec, &m->timer_watch);
+                        if (r < 0)
                                 return r;
                 }
 
@@ -800,7 +822,8 @@ static int mount_spawn(Mount *m, ExecCommand *c, pid_t *_pid) {
         assert(c);
         assert(_pid);
 
-        if ((r = unit_watch_timer(UNIT(m), m->timeout_usec, &m->timer_watch)) < 0)
+        r = unit_watch_timer(UNIT(m), CLOCK_MONOTONIC, true, m->timeout_usec, &m->timer_watch);
+        if (r < 0)
                 goto fail;
 
         if ((r = exec_spawn(c,
@@ -870,7 +893,9 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
                 if (m->control_pid > 0) {
                         if (kill_and_sigcont(m->control_pid, sig) < 0 && errno != ESRCH)
 
-                                log_warning("Failed to kill control process %li: %m", (long) m->control_pid);
+                                log_warning_unit(UNIT(m)->id,
+                                                 "Failed to kill control process %li: %m",
+                                                 (long) m->control_pid);
                         else
                                 wait_for_exit = true;
                 }
@@ -890,7 +915,9 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
                         r = cgroup_bonding_kill_list(UNIT(m)->cgroup_bondings, sig, true, false, pid_set, NULL);
                         if (r < 0) {
                                 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
-                                        log_warning("Failed to kill control group: %s", strerror(-r));
+                                        log_warning_unit(UNIT(m)->id,
+                                                         "Failed to kill control group: %s",
+                                                         strerror(-r));
                         } else if (r > 0)
                                 wait_for_exit = true;
 
@@ -900,7 +927,8 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
         }
 
         if (wait_for_exit) {
-                if ((r = unit_watch_timer(UNIT(m), m->timeout_usec, &m->timer_watch)) < 0)
+                r = unit_watch_timer(UNIT(m), CLOCK_MONOTONIC, true, m->timeout_usec, &m->timer_watch);
+                if (r < 0)
                         goto fail;
 
                 mount_set_state(m, state);
@@ -912,7 +940,8 @@ static void mount_enter_signal(Mount *m, MountState state, MountResult f) {
         return;
 
 fail:
-        log_warning("%s failed to kill processes: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to kill processes: %s", UNIT(m)->id, strerror(-r));
 
         if (state == MOUNT_REMOUNTING_SIGTERM || state == MOUNT_REMOUNTING_SIGKILL)
                 mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
@@ -923,6 +952,18 @@ fail:
                 set_free(pid_set);
 }
 
+void warn_if_dir_nonempty(const char *unit, const char* where) {
+        if (dir_is_empty(where) > 0)
+                return;
+        log_struct(LOG_NOTICE,
+                   "MESSAGE=%s: Directory %s to mount over is not empty, mounting anyway.",
+                   unit, where,
+                   "WHERE=%s", where,
+                   "_SYSTEMD_UNIT=%s", unit,
+                   MESSAGE_ID(SD_MESSAGE_OVERMOUNTING),
+                   NULL);
+}
+
 static void mount_enter_unmounting(Mount *m) {
         int r;
 
@@ -948,7 +989,9 @@ static void mount_enter_unmounting(Mount *m) {
         return;
 
 fail:
-        log_warning("%s failed to run 'umount' task: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to run 'umount' task: %s",
+                         UNIT(m)->id, strerror(-r));
         mount_enter_mounted(m, MOUNT_FAILURE_RESOURCES);
 }
 
@@ -963,8 +1006,7 @@ static void mount_enter_mounting(Mount *m) {
 
         mkdir_p_label(m->where, m->directory_mode);
 
-        if (dir_is_empty(m->where) <= 0)
-                log_notice("%s: Directory %s to mount over is not empty, mounting anyway. (To see the over-mounted files, please manually mount the underlying file system to a secondary location.)", m->meta.id, m->where);
+        warn_if_dir_nonempty(m->meta.id, m->where);
 
         /* Create the source directory for bind-mounts if needed */
         p = get_mount_parameters_fragment(m);
@@ -997,7 +1039,9 @@ static void mount_enter_mounting(Mount *m) {
         return;
 
 fail:
-        log_warning("%s failed to run 'mount' task: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to run 'mount' task: %s",
+                         UNIT(m)->id, strerror(-r));
         mount_enter_dead(m, MOUNT_FAILURE_RESOURCES);
 }
 
@@ -1055,7 +1099,9 @@ static void mount_enter_remounting(Mount *m) {
         return;
 
 fail:
-        log_warning("%s failed to run 'remount' task: %s", UNIT(m)->id, strerror(-r));
+        log_warning_unit(UNIT(m)->id,
+                         "%s failed to run 'remount' task: %s",
+                         UNIT(m)->id, strerror(-r));
         m->reload_result = MOUNT_FAILURE_RESOURCES;
         mount_enter_mounted(m, MOUNT_SUCCESS);
 }
@@ -1157,7 +1203,7 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
                 MountState state;
 
                 if ((state = mount_state_from_string(value)) < 0)
-                        log_debug("Failed to parse state value %s", value);
+                        log_debug_unit(u->id, "Failed to parse state value %s", value);
                 else
                         m->deserialized_state = state;
         } else if (streq(key, "result")) {
@@ -1165,7 +1211,8 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
 
                 f = mount_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse result value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "Failed to parse result value %s", value);
                 else if (f != MOUNT_SUCCESS)
                         m->result = f;
 
@@ -1174,7 +1221,8 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
 
                 f = mount_result_from_string(value);
                 if (f < 0)
-                        log_debug("Failed to parse reload result value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "Failed to parse reload result value %s", value);
                 else if (f != MOUNT_SUCCESS)
                         m->reload_result = f;
 
@@ -1182,21 +1230,24 @@ static int mount_deserialize_item(Unit *u, const char *key, const char *value, F
                 pid_t pid;
 
                 if (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse control-pid value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "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_debug("Failed to parse exec-command value %s", value);
+                        log_debug_unit(UNIT(m)->id,
+                                       "Failed to parse exec-command value %s", value);
                 else {
                         m->control_command_id = id;
                         m->control_command = m->exec_command + id;
                 }
 
         } else
-                log_debug("Unknown serialization key '%s'", key);
+                log_debug_unit(UNIT(m)->id,
+                               "Unknown serialization key '%s'", key);
 
         return 0;
 }
@@ -1254,8 +1305,9 @@ static void mount_sigchld_event(Unit *u, pid_t pid, int code, int status) {
                 m->control_command_id = _MOUNT_EXEC_COMMAND_INVALID;
         }
 
-        log_full(f == MOUNT_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
-                 "%s mount process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
+        log_full_unit(f == MOUNT_SUCCESS ? LOG_DEBUG : LOG_NOTICE, u->id,
+                      "%s mount process exited, code=%s status=%i",
+                      u->id, 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
@@ -1322,27 +1374,33 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
 
         case MOUNT_MOUNTING:
         case MOUNT_MOUNTING_DONE:
-                log_warning("%s mounting timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s mounting timed out. Stopping.", u->id);
                 mount_enter_signal(m, MOUNT_MOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
                 break;
 
         case MOUNT_REMOUNTING:
-                log_warning("%s remounting timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s remounting timed out. Stopping.", u->id);
                 m->reload_result = MOUNT_FAILURE_TIMEOUT;
                 mount_enter_mounted(m, MOUNT_SUCCESS);
                 break;
 
         case MOUNT_UNMOUNTING:
-                log_warning("%s unmounting timed out. Stopping.", u->id);
+                log_warning_unit(u->id,
+                                 "%s unmounting timed out. Stopping.", u->id);
                 mount_enter_signal(m, MOUNT_UNMOUNTING_SIGTERM, MOUNT_FAILURE_TIMEOUT);
                 break;
 
         case MOUNT_MOUNTING_SIGTERM:
                 if (m->kill_context.send_sigkill) {
-                        log_warning("%s mounting timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s mounting timed out. Killing.", u->id);
                         mount_enter_signal(m, MOUNT_MOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s mounting timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s mounting timed out. Skipping SIGKILL. Ignoring.",
+                                         u->id);
 
                         if (m->from_proc_self_mountinfo)
                                 mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
@@ -1353,10 +1411,13 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
 
         case MOUNT_REMOUNTING_SIGTERM:
                 if (m->kill_context.send_sigkill) {
-                        log_warning("%s remounting timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s remounting timed out. Killing.", u->id);
                         mount_enter_signal(m, MOUNT_REMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s remounting timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s remounting timed out. Skipping SIGKILL. Ignoring.",
+                                         u->id);
 
                         if (m->from_proc_self_mountinfo)
                                 mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
@@ -1367,10 +1428,13 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
 
         case MOUNT_UNMOUNTING_SIGTERM:
                 if (m->kill_context.send_sigkill) {
-                        log_warning("%s unmounting timed out. Killing.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s unmounting timed out. Killing.", u->id);
                         mount_enter_signal(m, MOUNT_UNMOUNTING_SIGKILL, MOUNT_FAILURE_TIMEOUT);
                 } else {
-                        log_warning("%s unmounting timed out. Skipping SIGKILL. Ignoring.", u->id);
+                        log_warning_unit(u->id,
+                                         "%s unmounting timed out. Skipping SIGKILL. Ignoring.",
+                                         u->id);
 
                         if (m->from_proc_self_mountinfo)
                                 mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
@@ -1382,7 +1446,9 @@ static void mount_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
         case MOUNT_MOUNTING_SIGKILL:
         case MOUNT_REMOUNTING_SIGKILL:
         case MOUNT_UNMOUNTING_SIGKILL:
-                log_warning("%s mount process still around after SIGKILL. Ignoring.", u->id);
+                log_warning_unit(u->id,
+                                 "%s mount process still around after SIGKILL. Ignoring.",
+                                 u->id);
 
                 if (m->from_proc_self_mountinfo)
                         mount_enter_mounted(m, MOUNT_FAILURE_TIMEOUT);
@@ -1654,7 +1720,8 @@ void mount_fd_event(Manager *m, int events) {
          * /proc/self/mountinfo file, which informs us about mounting
          * table changes */
 
-        if ((r = mount_load_proc_self_mountinfo(m, true)) < 0) {
+        r = mount_load_proc_self_mountinfo(m, true);
+        if (r < 0) {
                 log_error("Failed to reread /proc/self/mountinfo: %s", strerror(-r));
 
                 /* Reset flags, just in case, for later calls */