chiark / gitweb /
loginctl: show the 10 most recent log user/session log lines in "loginctl user-status...
[elogind.git] / src / systemctl / systemctl.c
index abe23ec235ded319f5a564b1ccaafdebfe94bcce..20c765e53285de4dff904aebc938db2ce4ce620f 100644 (file)
@@ -194,6 +194,15 @@ static void polkit_agent_open_if_enabled(void) {
 }
 #endif
 
+static OutputFlags get_output_flags(void) {
+        return
+                arg_all * OUTPUT_SHOW_ALL |
+                (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
+                on_tty() * OUTPUT_COLOR |
+                !arg_quiet * OUTPUT_WARN_CUTOFF |
+                arg_full * OUTPUT_FULL_WIDTH;
+}
+
 static int translate_bus_error_to_exit_status(int r, const sd_bus_error *error) {
         assert(error);
 
@@ -1951,32 +1960,6 @@ static void dump_unit_file_changes(const UnitFileChange *changes, unsigned n_cha
         }
 }
 
-static int deserialize_and_dump_unit_file_changes(sd_bus_message *m) {
-        const char *type, *path, *source;
-        int r;
-
-        r = sd_bus_message_enter_container(m, SD_BUS_TYPE_ARRAY, "(sss)");
-        if (r < 0)
-                return bus_log_parse_error(r);
-
-        while ((r = sd_bus_message_read(m, "(sss)", &type, &path, &source)) > 0) {
-                if (!arg_quiet) {
-                        if (streq(type, "symlink"))
-                                log_info("Created symlink from %s to %s.", path, source);
-                        else
-                                log_info("Removed symlink %s.", path);
-                }
-        }
-        if (r < 0)
-                return bus_log_parse_error(r);
-
-        r = sd_bus_message_exit_container(m);
-        if (r < 0)
-                return bus_log_parse_error(r);
-
-        return 0;
-}
-
 static int set_default(sd_bus *bus, char **args) {
         _cleanup_free_ char *unit = NULL;
         UnitFileChange *changes = NULL;
@@ -2024,7 +2007,7 @@ static int set_default(sd_bus *bus, char **args) {
                         return r;
                 }
 
-                r = deserialize_and_dump_unit_file_changes(reply);
+                r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet);
                 if (r < 0)
                         return r;
 
@@ -2406,197 +2389,6 @@ static int unit_find_paths(sd_bus *bus,
         return r;
 }
 
-typedef struct WaitData {
-        Set *set;
-
-        char *name;
-        char *result;
-} WaitData;
-
-static int wait_filter(sd_bus *bus, sd_bus_message *m, void *data, sd_bus_error *error) {
-        WaitData *d = data;
-
-        assert(bus);
-        assert(m);
-        assert(d);
-
-        log_debug("Got D-Bus request: %s.%s() on %s",
-                  sd_bus_message_get_interface(m),
-                  sd_bus_message_get_member(m),
-                  sd_bus_message_get_path(m));
-
-        if (sd_bus_message_is_signal(m, "org.freedesktop.DBus.Local", "Disconnected")) {
-                log_error("Warning! D-Bus connection terminated.");
-                sd_bus_close(bus);
-        } else if (sd_bus_message_is_signal(m, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
-                uint32_t id;
-                const char *path, *result, *unit;
-                char *ret;
-                int r;
-
-                r = sd_bus_message_read(m, "uoss", &id, &path, &unit, &result);
-                if (r >= 0) {
-                        ret = set_remove(d->set, (char*) path);
-                        if (!ret)
-                                return 0;
-
-                        free(ret);
-
-                        if (!isempty(result))
-                                d->result = strdup(result);
-
-                        if (!isempty(unit))
-                                d->name = strdup(unit);
-
-                        return 0;
-                }
-#ifndef NOLEGACY
-                r = sd_bus_message_read(m, "uos", &id, &path, &result);
-                if (r >= 0) {
-                        ret = set_remove(d->set, (char*) path);
-                        if (!ret)
-                                return 0;
-
-                        free(ret);
-
-                        if (*result)
-                                d->result = strdup(result);
-
-                        return 0;
-                }
-#endif
-
-                bus_log_parse_error(r);
-        }
-
-        return 0;
-}
-
-static int enable_wait_for_jobs(sd_bus *bus) {
-        int r;
-
-        assert(bus);
-
-        r = sd_bus_add_match(
-                        bus,
-                        NULL,
-                        "type='signal',"
-                        "sender='org.freedesktop.systemd1',"
-                        "interface='org.freedesktop.systemd1.Manager',"
-                        "member='JobRemoved',"
-                        "path='/org/freedesktop/systemd1'",
-                        NULL, NULL);
-        if (r < 0) {
-                log_error("Failed to add match");
-                return -EIO;
-        }
-
-        /* This is slightly dirty, since we don't undo the match registrations. */
-        return 0;
-}
-
-static int bus_process_wait(sd_bus *bus) {
-        int r;
-
-        for (;;) {
-                r = sd_bus_process(bus, NULL);
-                if (r < 0)
-                        return r;
-                if (r > 0)
-                        return 0;
-                r = sd_bus_wait(bus, (uint64_t) -1);
-                if (r < 0)
-                        return r;
-        }
-}
-
-static int check_wait_response(WaitData *d) {
-        int r = 0;
-
-        assert(d->result);
-
-        if (!arg_quiet) {
-                if (streq(d->result, "canceled"))
-                        log_error("Job for %s canceled.", strna(d->name));
-                else if (streq(d->result, "timeout"))
-                        log_error("Job for %s timed out.", strna(d->name));
-                else if (streq(d->result, "dependency"))
-                        log_error("A dependency job for %s failed. See 'journalctl -xe' for details.", strna(d->name));
-                else if (streq(d->result, "invalid"))
-                        log_error("Job for %s invalid.", strna(d->name));
-                else if (streq(d->result, "assert"))
-                        log_error("Assertion failed on job for %s.", strna(d->name));
-                else if (streq(d->result, "unsupported"))
-                        log_error("Operation on or unit type of %s not supported on this system.", strna(d->name));
-                else if (!streq(d->result, "done") && !streq(d->result, "skipped")) {
-                        if (d->name) {
-                                bool quotes;
-
-                                quotes = chars_intersect(d->name, SHELL_NEED_QUOTES);
-
-                                log_error("Job for %s failed. See \"systemctl status %s%s%s\" and \"journalctl -xe\" for details.",
-                                          d->name,
-                                          quotes ? "'" : "", d->name, quotes ? "'" : "");
-                        } else
-                                log_error("Job failed. See \"journalctl -xe\" for details.");
-                }
-        }
-
-        if (streq(d->result, "canceled"))
-                r = -ECANCELED;
-        else if (streq(d->result, "timeout"))
-                r = -ETIME;
-        else if (streq(d->result, "dependency"))
-                r = -EIO;
-        else if (streq(d->result, "invalid"))
-                r = -ENOEXEC;
-        else if (streq(d->result, "assert"))
-                r = -EPROTO;
-        else if (streq(d->result, "unsupported"))
-                r = -ENOTSUP;
-        else if (!streq(d->result, "done") && !streq(d->result, "skipped"))
-                r = -EIO;
-
-        return r;
-}
-
-static int wait_for_jobs(sd_bus *bus, Set *s) {
-        _cleanup_bus_slot_unref_ sd_bus_slot *slot = NULL;
-        WaitData d = { .set = s };
-        int r = 0, q;
-
-        assert(bus);
-        assert(s);
-
-        q = sd_bus_add_filter(bus, &slot, wait_filter, &d);
-        if (q < 0)
-                return log_oom();
-
-        while (!set_isempty(s)) {
-                q = bus_process_wait(bus);
-                if (q < 0)
-                        return log_error_errno(q, "Failed to wait for response: %m");
-
-                if (d.result) {
-                        q = check_wait_response(&d);
-                        /* Return the first error as it is most likely to be
-                         * meaningful. */
-                        if (q < 0 && r == 0)
-                                r = q;
-                        log_debug("Got result %s/%s for job %s",
-                                  strna(d.result), strerror(-q), strna(d.name));
-                }
-
-                free(d.name);
-                d.name = NULL;
-
-                free(d.result);
-                d.result = NULL;
-        }
-
-        return r;
-}
-
 static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) {
         _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
         _cleanup_free_ char *n = NULL, *state = NULL;
@@ -2761,7 +2553,7 @@ static int start_unit_one(
                 const char *name,
                 const char *mode,
                 sd_bus_error *error,
-                Set *s) {
+                BusWaitForJobs *w) {
 
         _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
         const char *path;
@@ -2814,15 +2606,9 @@ static int start_unit_one(
         if (need_daemon_reload(bus, name) > 0)
                 warn_unit_file_changed(name);
 
-        if (s) {
-                char *p;
-
-                p = strdup(path);
-                if (!p)
-                        return log_oom();
-
-                log_debug("Adding %s to the set", p);
-                r = set_consume(s, p);
+        if (w) {
+                log_debug("Adding %s to the set", path);
+                r = bus_wait_for_jobs_add(w, path);
                 if (r < 0)
                         return log_oom();
         }
@@ -2911,9 +2697,9 @@ static enum action verb_to_action(const char *verb) {
 }
 
 static int start_unit(sd_bus *bus, char **args) {
-        _cleanup_set_free_free_ Set *s = NULL;
-        _cleanup_strv_free_ char **names = NULL;
+        _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
         const char *method, *mode, *one_name, *suffix = NULL;
+        _cleanup_strv_free_ char **names = NULL;
         char **name;
         int r = 0;
 
@@ -2952,20 +2738,16 @@ static int start_unit(sd_bus *bus, char **args) {
         }
 
         if (!arg_no_block) {
-                r = enable_wait_for_jobs(bus);
+                r = bus_wait_for_jobs_new(bus, &w);
                 if (r < 0)
                         return log_error_errno(r, "Could not watch jobs: %m");
-
-                s = set_new(&string_hash_ops);
-                if (!s)
-                        return log_oom();
         }
 
         STRV_FOREACH(name, names) {
                 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
                 int q;
 
-                q = start_unit_one(bus, method, *name, mode, &error, s);
+                q = start_unit_one(bus, method, *name, mode, &error, w);
                 if (r >= 0 && q < 0)
                         r = translate_bus_error_to_exit_status(q, &error);
         }
@@ -2973,7 +2755,7 @@ static int start_unit(sd_bus *bus, char **args) {
         if (!arg_no_block) {
                 int q;
 
-                q = wait_for_jobs(bus, s);
+                q = bus_wait_for_jobs(w, arg_quiet);
                 if (q < 0)
                         return q;
 
@@ -3193,7 +2975,7 @@ static int start_special(sd_bus *bus, char **args) {
              a == ACTION_HIBERNATE ||
              a == ACTION_HYBRID_SLEEP)) {
                 r = reboot_with_logind(bus, a);
-                if (r >= 0)
+                if (r >= 0 || IN_SET(r, -ENOTSUP, -EINPROGRESS))
                         return r;
         }
 
@@ -3451,12 +3233,6 @@ static void print_status_info(
         char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
         char since2[FORMAT_TIMESTAMP_MAX], *s2;
         const char *path;
-        int flags =
-                arg_all * OUTPUT_SHOW_ALL |
-                (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
-                on_tty() * OUTPUT_COLOR |
-                !arg_quiet * OUTPUT_WARN_CUTOFF |
-                arg_full * OUTPUT_FULL_WIDTH;
         char **t, **t2;
 
         assert(i);
@@ -3726,21 +3502,23 @@ static void print_status_info(
                         if (i->control_pid > 0)
                                 extra[k++] = i->control_pid;
 
-                        show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, false, extra, k, flags);
+                        show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, i->control_group, prefix, c, false, extra, k, get_output_flags());
                 }
         }
 
         if (i->id && arg_transport == BUS_TRANSPORT_LOCAL) {
-                show_journal_by_unit(stdout,
-                                     i->id,
-                                     arg_output,
-                                     0,
-                                     i->inactive_exit_timestamp_monotonic,
-                                     arg_lines,
-                                     getuid(),
-                                     flags | OUTPUT_BEGIN_NEWLINE,
-                                     arg_scope == UNIT_FILE_SYSTEM,
-                                     ellipsized);
+                show_journal_by_unit(
+                                stdout,
+                                i->id,
+                                arg_output,
+                                0,
+                                i->inactive_exit_timestamp_monotonic,
+                                arg_lines,
+                                getuid(),
+                                get_output_flags() | OUTPUT_BEGIN_NEWLINE,
+                                SD_JOURNAL_LOCAL_ONLY,
+                                arg_scope == UNIT_FILE_SYSTEM,
+                                ellipsized);
         }
 
         if (i->need_daemon_reload)
@@ -4604,13 +4382,6 @@ static int show_system_status(sd_bus *bus) {
 
         printf("   CGroup: %s\n", mi.control_group ?: "/");
         if (arg_transport == BUS_TRANSPORT_LOCAL || arg_transport == BUS_TRANSPORT_MACHINE) {
-                int flags =
-                        arg_all * OUTPUT_SHOW_ALL |
-                        (!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
-                        on_tty() * OUTPUT_COLOR |
-                        !arg_quiet * OUTPUT_WARN_CUTOFF |
-                        arg_full * OUTPUT_FULL_WIDTH;
-
                 static const char prefix[] = "           ";
                 unsigned c;
 
@@ -4620,7 +4391,7 @@ static int show_system_status(sd_bus *bus) {
                 else
                         c = 0;
 
-                show_cgroup(SYSTEMD_CGROUP_CONTROLLER, strempty(mi.control_group), prefix, c, false, flags);
+                show_cgroup(SYSTEMD_CGROUP_CONTROLLER, strempty(mi.control_group), prefix, c, false, get_output_flags());
         }
 
         free(mi.state);
@@ -4742,11 +4513,7 @@ static int init_home_and_lookup_paths(char **user_home, char **user_runtime, Loo
                         return log_error_errno(ENOTDIR, "Cannot find units: $XDG_RUNTIME_DIR is not set.");
         }
 
-        r = lookup_paths_init(lp,
-                              arg_scope == UNIT_FILE_SYSTEM ? SYSTEMD_SYSTEM : SYSTEMD_USER,
-                              arg_scope == UNIT_FILE_USER,
-                              arg_root,
-                              NULL, NULL, NULL);
+        r = lookup_paths_init_from_scope(lp, arg_scope, arg_root);
         if (r < 0)
                 return log_error_errno(r, "Failed to lookup unit lookup paths: %m");
 
@@ -5415,8 +5182,10 @@ static int enable_sysv_units(const char *verb, char **args) {
                         return -EPROTO;
 
                 /* Remove this entry, so that we don't try enabling it as native unit */
-                assert(f > 0 && streq(args[f-1], name));
-                assert_se(strv_remove(args + f - 1, name));
+                assert(f > 0);
+                f--;
+                assert(args[f] == name);
+                strv_remove(args, name);
         }
 
 #endif
@@ -5590,7 +5359,7 @@ static int enable_unit(sd_bus *bus, char **args) {
                                 return bus_log_parse_error(r);
                 }
 
-                r = deserialize_and_dump_unit_file_changes(reply);
+                r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet);
                 if (r < 0)
                         return r;
 
@@ -5689,7 +5458,7 @@ static int add_dependency(sd_bus *bus, char **args) {
                         return r;
                 }
 
-                r = deserialize_and_dump_unit_file_changes(reply);
+                r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet);
                 if (r < 0)
                         return r;
 
@@ -5753,7 +5522,7 @@ static int preset_all(sd_bus *bus, char **args) {
                         return r;
                 }
 
-                r = deserialize_and_dump_unit_file_changes(reply);
+                r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet);
                 if (r < 0)
                         return r;
 
@@ -7638,6 +7407,11 @@ int main(int argc, char*argv[]) {
                 goto finish;
         }
 
+        /* Increase max number of open files to 16K if we can, we
+         * might needs this when browsing journal files, which might
+         * be split up into many files. */
+        setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384));
+
         if (!avoid_bus())
                 r = bus_open_transport_systemd(arg_transport, arg_host, arg_scope != UNIT_FILE_SYSTEM, &bus);