chiark / gitweb /
cryptsetup: lock ourselves into memory as long as we deal with passwords
[elogind.git] / src / manager.c
index 9fa4877016a786be24bfc56ff821d42626c37dd1..827e9937c65af551456a24142fd4851c84f6a72f 100644 (file)
@@ -433,6 +433,8 @@ void manager_free(Manager *m) {
          * around */
         manager_shutdown_cgroup(m, m->exit_code != MANAGER_REEXECUTE);
 
+        manager_undo_generators(m);
+
         bus_done(m);
 
         hashmap_free(m->units);
@@ -567,6 +569,8 @@ int manager_startup(Manager *m, FILE *serialization, FDSet *fds) {
 
         assert(m);
 
+        manager_run_generators(m);
+
         manager_build_unit_path_cache(m);
 
         /* If we will deserialize make sure that during enumeration
@@ -903,7 +907,7 @@ static void transaction_drop_redundant(Manager *m) {
                         LIST_FOREACH(transaction, k, j) {
 
                                 if (!job_is_anchor(k) &&
-                                    job_type_is_redundant(k->type, unit_active_state(k->unit)))
+                                    (j->installed || job_type_is_redundant(k->type, unit_active_state(k->unit))))
                                         continue;
 
                                 changes_something = true;
@@ -913,7 +917,7 @@ static void transaction_drop_redundant(Manager *m) {
                         if (changes_something)
                                 continue;
 
-                        log_debug("Found redundant job %s/%s, dropping.", j->unit->meta.id, job_type_to_string(j->type));
+                        /* log_debug("Found redundant job %s/%s, dropping.", j->unit->meta.id, job_type_to_string(j->type)); */
                         transaction_delete_job(m, j, false);
                         again = true;
                         break;
@@ -1065,10 +1069,15 @@ static void transaction_collect_garbage(Manager *m) {
                 again = false;
 
                 HASHMAP_FOREACH(j, m->transaction_jobs, i) {
-                        if (j->object_list)
+                        if (j->object_list) {
+                                /* log_debug("Keeping job %s/%s because of %s/%s", */
+                                /*           j->unit->meta.id, job_type_to_string(j->type), */
+                                /*           j->object_list->subject ? j->object_list->subject->unit->meta.id : "root", */
+                                /*           j->object_list->subject ? job_type_to_string(j->object_list->subject->type) : "root"); */
                                 continue;
+                        }
 
-                        log_debug("Garbage collecting job %s/%s", j->unit->meta.id, job_type_to_string(j->type));
+                        /* log_debug("Garbage collecting job %s/%s", j->unit->meta.id, job_type_to_string(j->type)); */
                         transaction_delete_job(m, j, true);
                         again = true;
                         break;
@@ -1133,7 +1142,8 @@ static void transaction_minimize_impact(Manager *m) {
                                         j->type == JOB_STOP && UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(j->unit));
 
                                 changes_existing_job =
-                                        j->unit->meta.job && job_type_is_conflicting(j->type, j->unit->meta.job->type);
+                                        j->unit->meta.job &&
+                                        job_type_is_conflicting(j->type, j->unit->meta.job->type);
 
                                 if (!stops_running_service && !changes_existing_job)
                                         continue;
@@ -1179,8 +1189,10 @@ static int transaction_apply(Manager *m) {
         }
 
         while ((j = hashmap_steal_first(m->transaction_jobs))) {
-                if (j->installed)
+                if (j->installed) {
+                        /* log_debug("Skipping already installed job %s/%s as %u", j->unit->meta.id, job_type_to_string(j->type), (unsigned) j->id); */
                         continue;
+                }
 
                 if (j->unit->meta.job)
                         job_free(j->unit->meta.job);
@@ -1234,7 +1246,7 @@ static int transaction_activate(Manager *m, JobMode mode, DBusError *e) {
         /* Second step: Try not to stop any running services if
          * we don't have to. Don't try to reverse running
          * jobs if we don't have to. */
-        if (mode != JOB_ISOLATE)
+        if (mode == JOB_FAIL)
                 transaction_minimize_impact(m);
 
         /* Third step: Drop redundant jobs */
@@ -1347,7 +1359,7 @@ static Job* transaction_add_one_job(Manager *m, JobType type, Unit *unit, bool o
         if (is_new)
                 *is_new = true;
 
-        log_debug("Added job %s/%s to transaction.", unit->meta.id, job_type_to_string(type));
+        /* log_debug("Added job %s/%s to transaction.", unit->meta.id, job_type_to_string(type)); */
 
         return j;
 }
@@ -1440,18 +1452,45 @@ static int transaction_add_job_and_dependencies(
                 return -ENOMEM;
 
         if (is_new) {
+                Set *following;
+
+                /* If we are following some other unit, make sure we
+                 * add all dependencies of everybody following. */
+                if (unit_following_set(ret->unit, &following) > 0) {
+                        SET_FOREACH(dep, following, i)
+                                if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, false, override, false, e, NULL)) < 0) {
+                                        log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
+
+                        set_free(following);
+                }
+
                 /* Finally, recursively add in all dependencies. */
                 if (type == JOB_START || type == JOB_RELOAD_OR_START) {
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES], i)
-                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
-                                        goto fail;
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, e, NULL)) < 0) {
+                                        if (r != -EBADR)
+                                                goto fail;
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BIND_TO], i)
-                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
-                                        goto fail;
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, e, NULL)) < 0) {
+
+                                        if (r != -EBADR)
+                                                goto fail;
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i)
-                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !override, override, false, e, NULL)) < 0 && r != -EBADR) {
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !override, override, false, e, NULL)) < 0) {
                                         log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
 
                                         if (e)
@@ -1467,11 +1506,17 @@ static int transaction_add_job_and_dependencies(
                                 }
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE], i)
-                                if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
-                                        goto fail;
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, true, override, false, e, NULL)) < 0) {
+
+                                        if (r != -EBADR)
+                                                goto fail;
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE_OVERRIDABLE], i)
-                                if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, e, NULL)) < 0 && r != -EBADR) {
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, e, NULL)) < 0) {
                                         log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
 
                                         if (e)
@@ -1479,22 +1524,44 @@ static int transaction_add_job_and_dependencies(
                                 }
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTS], i)
-                                if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, true, e, NULL)) < 0 && r != -EBADR)
-                                        goto fail;
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, true, e, NULL)) < 0) {
+
+                                        if (r != -EBADR)
+                                                goto fail;
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTED_BY], i)
-                                if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, false, override, false, e, NULL)) < 0 && r != -EBADR)
-                                        goto fail;
+                                if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, false, override, false, e, NULL)) < 0) {
+                                        log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r));
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
 
                 } else if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) {
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRED_BY], i)
-                                if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
-                                        goto fail;
+                                if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, e, NULL)) < 0) {
+
+                                        if (r != -EBADR)
+                                                goto fail;
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
 
                         SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BOUND_BY], i)
-                                if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, e, NULL)) < 0 && r != -EBADR)
-                                        goto fail;
+                                if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, e, NULL)) < 0) {
+
+                                        if (r != -EBADR)
+                                                goto fail;
+
+                                        if (e)
+                                                dbus_error_free(e);
+                                }
                 }
 
                 /* JOB_VERIFY_STARTED, JOB_RELOAD require no dependency handling */
@@ -1527,7 +1594,7 @@ static int transaction_add_isolate_jobs(Manager *m) {
                         continue;
 
                 /* No need to stop inactive jobs */
-                if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)))
+                if (UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(u)) && !u->meta.job)
                         continue;
 
                 /* Is there already something listed for this? */
@@ -1948,7 +2015,7 @@ static int manager_start_target(Manager *m, const char *name, JobMode mode) {
 
         dbus_error_init(&error);
 
-        log_info("Activating special unit %s", name);
+        log_debug("Activating special unit %s", name);
 
         if ((r = manager_add_job_by_name(m, JOB_START, name, mode, true, &error, NULL)) < 0)
                 log_error("Failed to enqueue %s job: %s", name, bus_error(&error, r));
@@ -2125,6 +2192,9 @@ static int process_event(Manager *m, struct epoll_event *ev) {
 
         assert(w = ev->data.ptr);
 
+        if (w->type == WATCH_INVALID)
+                return 0;
+
         switch (w->type) {
 
         case WATCH_SIGNAL:
@@ -2200,6 +2270,7 @@ static int process_event(Manager *m, struct epoll_event *ev) {
                 break;
 
         default:
+                log_error("event type=%i", w->type);
                 assert_not_reached("Unknown epoll event type.");
         }
 
@@ -2376,8 +2447,8 @@ void manager_send_unit_plymouth(Manager *m, Unit *u) {
 
         zero(sa);
         sa.sa.sa_family = AF_UNIX;
-        strncpy(sa.un.sun_path+1, "/ply-boot-protocol", sizeof(sa.un.sun_path)-1);
-        if (connect(fd, &sa.sa, sizeof(sa.un)) < 0) {
+        strncpy(sa.un.sun_path+1, "/org/freedesktop/plymouthd", sizeof(sa.un.sun_path)-1);
+        if (connect(fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
 
                 if (errno != EPIPE &&
                     errno != EAGAIN &&
@@ -2500,6 +2571,7 @@ int manager_serialize(Manager *m, FILE *f, FDSet *fds) {
         assert(f);
         assert(fds);
 
+        dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp);
         dual_timestamp_serialize(f, "startup-timestamp", &m->startup_timestamp);
         dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp);
 
@@ -2554,7 +2626,9 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) {
                 if (l[0] == 0)
                         break;
 
-                if (startswith(l, "startup-timestamp="))
+                if (startswith(l, "initrd-timestamp="))
+                        dual_timestamp_deserialize(l+17, &m->initrd_timestamp);
+                else if (startswith(l, "startup-timestamp="))
                         dual_timestamp_deserialize(l+18, &m->startup_timestamp);
                 else if (startswith(l, "finish-timestamp="))
                         dual_timestamp_deserialize(l+17, &m->finish_timestamp);
@@ -2622,12 +2696,17 @@ int manager_reload(Manager *m) {
 
         /* From here on there is no way back. */
         manager_clear_jobs_and_units(m);
+        manager_undo_generators(m);
 
         /* Find new unit paths */
         lookup_paths_free(&m->lookup_paths);
         if ((q = lookup_paths_init(&m->lookup_paths, m->running_as)) < 0)
                 r = q;
 
+        manager_run_generators(m);
+
+        manager_build_unit_path_cache(m);
+
         m->n_deserializing ++;
 
         /* First, enumerate what we can from all config files */
@@ -2714,7 +2793,7 @@ bool manager_unit_pending_inactive(Manager *m, const char *name) {
 }
 
 void manager_check_finished(Manager *m) {
-        char userspace[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
+        char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX];
 
         assert(m);
 
@@ -2726,24 +2805,192 @@ void manager_check_finished(Manager *m) {
 
         dual_timestamp_get(&m->finish_timestamp);
 
-        if (m->running_as == MANAGER_SYSTEM)
-                log_info("Startup finished in %s (kernel) + %s (userspace) = %s.",
-                         format_timespan(kernel, sizeof(kernel),
-                                         m->startup_timestamp.monotonic),
-                         format_timespan(userspace, sizeof(userspace),
-                                         m->finish_timestamp.monotonic - m->startup_timestamp.monotonic),
-                         format_timespan(sum, sizeof(sum),
-                                         m->finish_timestamp.monotonic));
-        else
+        if (m->running_as == MANAGER_SYSTEM) {
+                if (dual_timestamp_is_set(&m->initrd_timestamp)) {
+                        log_info("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.",
+                                 format_timespan(kernel, sizeof(kernel),
+                                                 m->initrd_timestamp.monotonic),
+                                 format_timespan(initrd, sizeof(initrd),
+                                                 m->startup_timestamp.monotonic - m->initrd_timestamp.monotonic),
+                                 format_timespan(userspace, sizeof(userspace),
+                                                 m->finish_timestamp.monotonic - m->startup_timestamp.monotonic),
+                                 format_timespan(sum, sizeof(sum),
+                                                 m->finish_timestamp.monotonic));
+                } else
+                        log_info("Startup finished in %s (kernel) + %s (userspace) = %s.",
+                                 format_timespan(kernel, sizeof(kernel),
+                                                 m->startup_timestamp.monotonic),
+                                 format_timespan(userspace, sizeof(userspace),
+                                                 m->finish_timestamp.monotonic - m->startup_timestamp.monotonic),
+                                 format_timespan(sum, sizeof(sum),
+                                                 m->finish_timestamp.monotonic));
+        } else
                 log_debug("Startup finished in %s.",
                           format_timespan(userspace, sizeof(userspace),
                                           m->finish_timestamp.monotonic - m->startup_timestamp.monotonic));
 
 }
 
+void manager_run_generators(Manager *m) {
+        DIR *d = NULL;
+        struct dirent *de;
+        Hashmap *pids = NULL;
+        const char *generator_path;
+
+        assert(m);
+
+        generator_path = m->running_as == MANAGER_SYSTEM ? SYSTEM_GENERATOR_PATH : USER_GENERATOR_PATH;
+        if (!(d = opendir(generator_path))) {
+
+                if (errno == ENOENT)
+                        return;
+
+                log_error("Failed to enumerate generator directory: %m");
+                return;
+        }
+
+        if (!m->generator_unit_path) {
+                char *p;
+                char system_path[] = "/dev/.systemd/generator-XXXXXX",
+                        user_path[] = "/tmp/systemd-generator-XXXXXX";
+
+                if (!(p = mkdtemp(m->running_as == MANAGER_SYSTEM ? system_path : user_path))) {
+                        log_error("Failed to generate generator directory: %m");
+                        goto finish;
+                }
+
+                if (!(m->generator_unit_path = strdup(p))) {
+                        log_error("Failed to allocate generator unit path.");
+                        goto finish;
+                }
+        }
+
+        if (!(pids = hashmap_new(trivial_hash_func, trivial_compare_func))) {
+                log_error("Failed to allocate set.");
+                goto finish;
+        }
+
+        while ((de = readdir(d))) {
+                char *path;
+                pid_t pid;
+                int k;
+
+                if (ignore_file(de->d_name))
+                        continue;
+
+                if (de->d_type != DT_REG &&
+                    de->d_type != DT_LNK &&
+                    de->d_type != DT_UNKNOWN)
+                        continue;
+
+                if (asprintf(&path, "%s/%s", generator_path, de->d_name) < 0) {
+                        log_error("Out of memory");
+                        continue;
+                }
+
+                if ((pid = fork()) < 0) {
+                        log_error("Failed to fork: %m");
+                        free(path);
+                        continue;
+                }
+
+                if (pid == 0) {
+                        const char *arguments[5];
+                        /* Child */
+
+                        arguments[0] = path;
+                        arguments[1] = m->generator_unit_path;
+                        arguments[2] = NULL;
+
+                        execv(path, (char **) arguments);
+
+                        log_error("Failed to execute %s: %m", path);
+                        _exit(EXIT_FAILURE);
+                }
+
+                log_debug("Spawned generator %s as %lu", path, (unsigned long) pid);
+
+                if ((k = hashmap_put(pids, UINT_TO_PTR(pid), path)) < 0) {
+                        log_error("Failed to add PID to set: %s", strerror(-k));
+                        free(path);
+                }
+        }
+
+        while (!hashmap_isempty(pids)) {
+                siginfo_t si;
+                char *path;
+
+                zero(si);
+                if (waitid(P_ALL, 0, &si, WEXITED) < 0) {
+
+                        if (errno == EINTR)
+                                continue;
+
+                        log_error("waitid() failed: %m");
+                        goto finish;
+                }
+
+                if ((path = hashmap_remove(pids, UINT_TO_PTR(si.si_pid)))) {
+                        if (!is_clean_exit(si.si_code, si.si_status)) {
+                                if (si.si_code == CLD_EXITED)
+                                        log_error("%s exited with exit status %i.", path, si.si_status);
+                                else
+                                        log_error("%s terminated by signal %s.", path, signal_to_string(si.si_status));
+                        } else
+                                log_debug("Generator %s exited successfully.", path);
+
+                        free(path);
+                }
+        }
+
+        if (rmdir(m->generator_unit_path) >= 0) {
+                /* Uh? we were able to remove this dir? I guess that
+                 * means the directory was empty, hence let's shortcut
+                 * this */
+
+                free(m->generator_unit_path);
+                m->generator_unit_path = NULL;
+                goto finish;
+        }
+
+        if (!strv_find(m->lookup_paths.unit_path, m->generator_unit_path)) {
+                char **l;
+
+                if (!(l = strv_append(m->lookup_paths.unit_path, m->generator_unit_path))) {
+                        log_error("Failed to add generator directory to unit search path: %m");
+                        goto finish;
+                }
+
+                strv_free(m->lookup_paths.unit_path);
+                m->lookup_paths.unit_path = l;
+
+                log_debug("Added generator unit path %s to search path.", m->generator_unit_path);
+        }
+
+finish:
+        if (d)
+                closedir(d);
+
+        if (pids)
+                hashmap_free_free(pids);
+}
+
+void manager_undo_generators(Manager *m) {
+        assert(m);
+
+        if (!m->generator_unit_path)
+                return;
+
+        strv_remove(m->lookup_paths.unit_path, m->generator_unit_path);
+        rm_rf(m->generator_unit_path, false, true);
+
+        free(m->generator_unit_path);
+        m->generator_unit_path = NULL;
+}
+
 static const char* const manager_running_as_table[_MANAGER_RUNNING_AS_MAX] = {
         [MANAGER_SYSTEM] = "system",
-        [MANAGER_SESSION] = "session"
+        [MANAGER_USER] = "user"
 };
 
 DEFINE_STRING_TABLE_LOOKUP(manager_running_as, ManagerRunningAs);