move libsystemd_core.la sources into core/

1 files changed, 888 insertions, 0 deletions

diff --git a/src/core/automount.c b/src/core/automount.c
new file mode 100644
index 000000000..6857a6fd7
--- /dev/null
+++ b/src/core/automount.c
@@ -0,0 +1,888 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <errno.h>
+#include <limits.h>
+#include <sys/mount.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/epoll.h>
+#include <sys/stat.h>
+#include <linux/auto_fs4.h>
+#include <linux/auto_dev-ioctl.h>
+
+#include "unit.h"
+#include "automount.h"
+#include "load-fragment.h"
+#include "load-dropin.h"
+#include "unit-name.h"
+#include "dbus-automount.h"
+#include "bus-errors.h"
+#include "special.h"
+#include "label.h"
+#include "mkdir.h"
+
+static const UnitActiveState state_translation_table[_AUTOMOUNT_STATE_MAX] = {
+        [AUTOMOUNT_DEAD] = UNIT_INACTIVE,
+        [AUTOMOUNT_WAITING] = UNIT_ACTIVE,
+        [AUTOMOUNT_RUNNING] = UNIT_ACTIVE,
+        [AUTOMOUNT_FAILED] = UNIT_FAILED
+};
+
+static int open_dev_autofs(Manager *m);
+
+static void automount_init(Unit *u) {
+        Automount *a = AUTOMOUNT(u);
+
+        assert(u);
+        assert(u->load_state == UNIT_STUB);
+
+        a->pipe_watch.fd = a->pipe_fd = -1;
+        a->pipe_watch.type = WATCH_INVALID;
+
+        a->directory_mode = 0755;
+
+        UNIT(a)->ignore_on_isolate = true;
+}
+
+static void repeat_unmout(const char *path) {
+        assert(path);
+
+        for (;;) {
+                /* If there are multiple mounts on a mount point, this
+                 * removes them all */
+
+                if (umount2(path, MNT_DETACH) >= 0)
+                        continue;
+
+                if (errno != EINVAL)
+                        log_error("Failed to unmount: %m");
+
+                break;
+        }
+}
+
+static void unmount_autofs(Automount *a) {
+        assert(a);
+
+        if (a->pipe_fd < 0)
+                return;
+
+        automount_send_ready(a, -EHOSTDOWN);
+
+        unit_unwatch_fd(UNIT(a), &a->pipe_watch);
+        close_nointr_nofail(a->pipe_fd);
+        a->pipe_fd = -1;
+
+        /* If we reload/reexecute things we keep the mount point
+         * around */
+        if (a->where &&
+            (UNIT(a)->manager->exit_code != MANAGER_RELOAD &&
+             UNIT(a)->manager->exit_code != MANAGER_REEXECUTE))
+                repeat_unmout(a->where);
+}
+
+static void automount_done(Unit *u) {
+        Automount *a = AUTOMOUNT(u);
+
+        assert(a);
+
+        unmount_autofs(a);
+        unit_ref_unset(&a->mount);
+
+        free(a->where);
+        a->where = NULL;
+
+        set_free(a->tokens);
+        a->tokens = NULL;
+}
+
+int automount_add_one_mount_link(Automount *a, Mount *m) {
+        int r;
+
+        assert(a);
+        assert(m);
+
+        if (UNIT(a)->load_state != UNIT_LOADED ||
+            UNIT(m)->load_state != UNIT_LOADED)
+                return 0;
+
+        if (!path_startswith(a->where, m->where))
+                return 0;
+
+        if (path_equal(a->where, m->where))
+                return 0;
+
+        if ((r = unit_add_two_dependencies(UNIT(a), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true)) < 0)
+                return r;
+
+        return 0;
+}
+
+static int automount_add_mount_links(Automount *a) {
+        Unit *other;
+        int r;
+
+        assert(a);
+
+        LIST_FOREACH(units_by_type, other, UNIT(a)->manager->units_by_type[UNIT_MOUNT])
+                if ((r = automount_add_one_mount_link(a, MOUNT(other))) < 0)
+                        return r;
+
+        return 0;
+}
+
+static int automount_add_default_dependencies(Automount *a) {
+        int r;
+
+        assert(a);
+
+        if (UNIT(a)->manager->running_as == MANAGER_SYSTEM) {
+
+                if ((r = unit_add_dependency_by_name(UNIT(a), UNIT_BEFORE, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
+                        return r;
+
+                if ((r = unit_add_two_dependencies_by_name(UNIT(a), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_UMOUNT_TARGET, NULL, true)) < 0)
+                        return r;
+        }
+
+        return 0;
+}
+
+static int automount_verify(Automount *a) {
+        bool b;
+        char *e;
+        assert(a);
+
+        if (UNIT(a)->load_state != UNIT_LOADED)
+                return 0;
+
+        if (path_equal(a->where, "/")) {
+                log_error("Cannot have an automount unit for the root directory. Refusing.");
+                return -EINVAL;
+        }
+
+        if (!(e = unit_name_from_path(a->where, ".automount")))
+                return -ENOMEM;
+
+        b = unit_has_name(UNIT(a), e);
+        free(e);
+
+        if (!b) {
+                log_error("%s's Where setting doesn't match unit name. Refusing.", UNIT(a)->id);
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static int automount_load(Unit *u) {
+        int r;
+        Automount *a = AUTOMOUNT(u);
+
+        assert(u);
+        assert(u->load_state == UNIT_STUB);
+
+        /* Load a .automount file */
+        if ((r = unit_load_fragment_and_dropin_optional(u)) < 0)
+                return r;
+
+        if (u->load_state == UNIT_LOADED) {
+                Unit *x;
+
+                if (!a->where)
+                        if (!(a->where = unit_name_to_path(u->id)))
+                                return -ENOMEM;
+
+                path_kill_slashes(a->where);
+
+                if ((r = automount_add_mount_links(a)) < 0)
+                        return r;
+
+                r = unit_load_related_unit(u, ".mount", &x);
+                if (r < 0)
+                        return r;
+
+                unit_ref_set(&a->mount, x);
+
+                r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(a->mount), true);
+                if (r < 0)
+                        return r;
+
+                if (UNIT(a)->default_dependencies)
+                        if ((r = automount_add_default_dependencies(a)) < 0)
+                                return r;
+        }
+
+        return automount_verify(a);
+}
+
+static void automount_set_state(Automount *a, AutomountState state) {
+        AutomountState old_state;
+        assert(a);
+
+        old_state = a->state;
+        a->state = state;
+
+        if (state != AUTOMOUNT_WAITING &&
+            state != AUTOMOUNT_RUNNING)
+                unmount_autofs(a);
+
+        if (state != old_state)
+                log_debug("%s changed %s -> %s",
+                          UNIT(a)->id,
+                          automount_state_to_string(old_state),
+                          automount_state_to_string(state));
+
+        unit_notify(UNIT(a), state_translation_table[old_state], state_translation_table[state], true);
+}
+
+static int automount_coldplug(Unit *u) {
+        Automount *a = AUTOMOUNT(u);
+        int r;
+
+        assert(a);
+        assert(a->state == AUTOMOUNT_DEAD);
+
+        if (a->deserialized_state != a->state) {
+
+                if ((r = open_dev_autofs(u->manager)) < 0)
+                        return r;
+
+                if (a->deserialized_state == AUTOMOUNT_WAITING ||
+                    a->deserialized_state == AUTOMOUNT_RUNNING) {
+
+                        assert(a->pipe_fd >= 0);
+
+                        if ((r = unit_watch_fd(UNIT(a), a->pipe_fd, EPOLLIN, &a->pipe_watch)) < 0)
+                                return r;
+                }
+
+                automount_set_state(a, a->deserialized_state);
+        }
+
+        return 0;
+}
+
+static void automount_dump(Unit *u, FILE *f, const char *prefix) {
+        Automount *a = AUTOMOUNT(u);
+
+        assert(a);
+
+        fprintf(f,
+                "%sAutomount State: %s\n"
+                "%sResult: %s\n"
+                "%sWhere: %s\n"
+                "%sDirectoryMode: %04o\n",
+                prefix, automount_state_to_string(a->state),
+                prefix, automount_result_to_string(a->result),
+                prefix, a->where,
+                prefix, a->directory_mode);
+}
+
+static void automount_enter_dead(Automount *a, AutomountResult f) {
+        assert(a);
+
+        if (f != AUTOMOUNT_SUCCESS)
+                a->result = f;
+
+        automount_set_state(a, a->result != AUTOMOUNT_SUCCESS ? AUTOMOUNT_FAILED : AUTOMOUNT_DEAD);
+}
+
+static int open_dev_autofs(Manager *m) {
+        struct autofs_dev_ioctl param;
+
+        assert(m);
+
+        if (m->dev_autofs_fd >= 0)
+                return m->dev_autofs_fd;
+
+        label_fix("/dev/autofs", false);
+
+        if ((m->dev_autofs_fd = open("/dev/autofs", O_CLOEXEC|O_RDONLY)) < 0) {
+                log_error("Failed to open /dev/autofs: %s", strerror(errno));
+                return -errno;
+        }
+
+        init_autofs_dev_ioctl(&param);
+        if (ioctl(m->dev_autofs_fd, AUTOFS_DEV_IOCTL_VERSION, &param) < 0) {
+                close_nointr_nofail(m->dev_autofs_fd);
+                m->dev_autofs_fd = -1;
+                return -errno;
+        }
+
+        log_debug("Autofs kernel version %i.%i", param.ver_major, param.ver_minor);
+
+        return m->dev_autofs_fd;
+}
+
+static int open_ioctl_fd(int dev_autofs_fd, const char *where, dev_t devid) {
+        struct autofs_dev_ioctl *param;
+        size_t l;
+        int r;
+
+        assert(dev_autofs_fd >= 0);
+        assert(where);
+
+        l = sizeof(struct autofs_dev_ioctl) + strlen(where) + 1;
+
+        if (!(param = malloc(l)))
+                return -ENOMEM;
+
+        init_autofs_dev_ioctl(param);
+        param->size = l;
+        param->ioctlfd = -1;
+        param->openmount.devid = devid;
+        strcpy(param->path, where);
+
+        if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_OPENMOUNT, param) < 0) {
+                r = -errno;
+                goto finish;
+        }
+
+        if (param->ioctlfd < 0) {
+                r = -EIO;
+                goto finish;
+        }
+
+        fd_cloexec(param->ioctlfd, true);
+        r = param->ioctlfd;
+
+finish:
+        free(param);
+        return r;
+}
+
+static int autofs_protocol(int dev_autofs_fd, int ioctl_fd) {
+        uint32_t major, minor;
+        struct autofs_dev_ioctl param;
+
+        assert(dev_autofs_fd >= 0);
+        assert(ioctl_fd >= 0);
+
+        init_autofs_dev_ioctl(&param);
+        param.ioctlfd = ioctl_fd;
+
+        if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_PROTOVER, &param) < 0)
+                return -errno;
+
+        major = param.protover.version;
+
+        init_autofs_dev_ioctl(&param);
+        param.ioctlfd = ioctl_fd;
+
+        if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_PROTOSUBVER, &param) < 0)
+                return -errno;
+
+        minor = param.protosubver.sub_version;
+
+        log_debug("Autofs protocol version %i.%i", major, minor);
+        return 0;
+}
+
+static int autofs_set_timeout(int dev_autofs_fd, int ioctl_fd, time_t sec) {
+        struct autofs_dev_ioctl param;
+
+        assert(dev_autofs_fd >= 0);
+        assert(ioctl_fd >= 0);
+
+        init_autofs_dev_ioctl(&param);
+        param.ioctlfd = ioctl_fd;
+        param.timeout.timeout = sec;
+
+        if (ioctl(dev_autofs_fd, AUTOFS_DEV_IOCTL_TIMEOUT, &param) < 0)
+                return -errno;
+
+        return 0;
+}
+
+static int autofs_send_ready(int dev_autofs_fd, int ioctl_fd, uint32_t token, int status) {
+        struct autofs_dev_ioctl param;
+
+        assert(dev_autofs_fd >= 0);
+        assert(ioctl_fd >= 0);
+
+        init_autofs_dev_ioctl(&param);
+        param.ioctlfd = ioctl_fd;
+
+        if (status) {
+                param.fail.token = token;
+                param.fail.status = status;
+        } else
+                param.ready.token = token;
+
+        if (ioctl(dev_autofs_fd, status ? AUTOFS_DEV_IOCTL_FAIL : AUTOFS_DEV_IOCTL_READY, &param) < 0)
+                return -errno;
+
+        return 0;
+}
+
+int automount_send_ready(Automount *a, int status) {
+        int ioctl_fd, r;
+        unsigned token;
+
+        assert(a);
+        assert(status <= 0);
+
+        if (set_isempty(a->tokens))
+                return 0;
+
+        if ((ioctl_fd = open_ioctl_fd(UNIT(a)->manager->dev_autofs_fd, a->where, a->dev_id)) < 0) {
+                r = ioctl_fd;
+                goto fail;
+        }
+
+        if (status)
+                log_debug("Sending failure: %s", strerror(-status));
+        else
+                log_debug("Sending success.");
+
+        r = 0;
+
+        /* Autofs thankfully does not hand out 0 as a token */
+        while ((token = PTR_TO_UINT(set_steal_first(a->tokens)))) {
+                int k;
+
+                /* Autofs fun fact II:
+                 *
+                 * if you pass a positive status code here, the kernel will
+                 * freeze! Yay! */
+
+                if ((k = autofs_send_ready(UNIT(a)->manager->dev_autofs_fd,
+                                           ioctl_fd,
+                                           token,
+                                           status)) < 0)
+                        r = k;
+        }
+
+fail:
+        if (ioctl_fd >= 0)
+                close_nointr_nofail(ioctl_fd);
+
+        return r;
+}
+
+static void automount_enter_waiting(Automount *a) {
+        int p[2] = { -1, -1 };
+        char name[32], options[128];
+        bool mounted = false;
+        int r, ioctl_fd = -1, dev_autofs_fd;
+        struct stat st;
+
+        assert(a);
+        assert(a->pipe_fd < 0);
+        assert(a->where);
+
+        if (a->tokens)
+                set_clear(a->tokens);
+
+        if ((dev_autofs_fd = open_dev_autofs(UNIT(a)->manager)) < 0) {
+                r = dev_autofs_fd;
+                goto fail;
+        }
+
+        /* We knowingly ignore the results of this call */
+        mkdir_p(a->where, 0555);
+
+        if (pipe2(p, O_NONBLOCK|O_CLOEXEC) < 0) {
+                r = -errno;
+                goto fail;
+        }
+
+        snprintf(options, sizeof(options), "fd=%i,pgrp=%u,minproto=5,maxproto=5,direct", p[1], (unsigned) getpgrp());
+        char_array_0(options);
+
+        snprintf(name, sizeof(name), "systemd-%u", (unsigned) getpid());
+        char_array_0(name);
+
+        if (mount(name, a->where, "autofs", 0, options) < 0) {
+                r = -errno;
+                goto fail;
+        }
+
+        mounted = true;
+
+        close_nointr_nofail(p[1]);
+        p[1] = -1;
+
+        if (stat(a->where, &st) < 0) {
+                r = -errno;
+                goto fail;
+        }
+
+        if ((ioctl_fd = open_ioctl_fd(dev_autofs_fd, a->where, st.st_dev)) < 0) {
+                r = ioctl_fd;
+                goto fail;
+        }
+
+        if ((r = autofs_protocol(dev_autofs_fd, ioctl_fd)) < 0)
+                goto fail;
+
+        if ((r = autofs_set_timeout(dev_autofs_fd, ioctl_fd, 300)) < 0)
+                goto fail;
+
+        /* Autofs fun fact:
+         *
+         * Unless we close the ioctl fd here, for some weird reason
+         * the direct mount will not receive events from the
+         * kernel. */
+
+        close_nointr_nofail(ioctl_fd);
+        ioctl_fd = -1;
+
+        if ((r = unit_watch_fd(UNIT(a), p[0], EPOLLIN, &a->pipe_watch)) < 0)
+                goto fail;
+
+        a->pipe_fd = p[0];
+        a->dev_id = st.st_dev;
+
+        automount_set_state(a, AUTOMOUNT_WAITING);
+
+        return;
+
+fail:
+        assert_se(close_pipe(p) == 0);
+
+        if (ioctl_fd >= 0)
+                close_nointr_nofail(ioctl_fd);
+
+        if (mounted)
+                repeat_unmout(a->where);
+
+        log_error("Failed to initialize automounter: %s", strerror(-r));
+        automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES);
+}
+
+static void automount_enter_runnning(Automount *a) {
+        int r;
+        struct stat st;
+        DBusError error;
+
+        assert(a);
+        assert(UNIT_DEREF(a->mount));
+
+        dbus_error_init(&error);
+
+        /* We don't take mount requests anymore if we are supposed to
+         * shut down anyway */
+        if (unit_pending_inactive(UNIT(a))) {
+                log_debug("Suppressing automount request on %s since unit stop is scheduled.", UNIT(a)->id);
+                automount_send_ready(a, -EHOSTDOWN);
+                return;
+        }
+
+        mkdir_p(a->where, a->directory_mode);
+
+        /* Before we do anything, let's see if somebody is playing games with us? */
+        if (lstat(a->where, &st) < 0) {
+                log_warning("%s failed to stat automount point: %m", UNIT(a)->id);
+                goto fail;
+        }
+
+        if (!S_ISDIR(st.st_mode) || st.st_dev != a->dev_id)
+                log_info("%s's automount point already active?", UNIT(a)->id);
+        else if ((r = manager_add_job(UNIT(a)->manager, JOB_START, UNIT_DEREF(a->mount), JOB_REPLACE, true, &error, NULL)) < 0) {
+                log_warning("%s failed to queue mount startup job: %s", UNIT(a)->id, bus_error(&error, r));
+                goto fail;
+        }
+
+        automount_set_state(a, AUTOMOUNT_RUNNING);
+        return;
+
+fail:
+        automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES);
+        dbus_error_free(&error);
+}
+
+static int automount_start(Unit *u) {
+        Automount *a = AUTOMOUNT(u);
+
+        assert(a);
+
+        assert(a->state == AUTOMOUNT_DEAD || a->state == AUTOMOUNT_FAILED);
+
+        if (path_is_mount_point(a->where, false)) {
+                log_error("Path %s is already a mount point, refusing start for %s", a->where, u->id);
+                return -EEXIST;
+        }
+
+        if (UNIT_DEREF(a->mount)->load_state != UNIT_LOADED)
+                return -ENOENT;
+
+        a->result = AUTOMOUNT_SUCCESS;
+        automount_enter_waiting(a);
+        return 0;
+}
+
+static int automount_stop(Unit *u) {
+        Automount *a = AUTOMOUNT(u);
+
+        assert(a);
+
+        assert(a->state == AUTOMOUNT_WAITING || a->state == AUTOMOUNT_RUNNING);
+
+        automount_enter_dead(a, AUTOMOUNT_SUCCESS);
+        return 0;
+}
+
+static int automount_serialize(Unit *u, FILE *f, FDSet *fds) {
+        Automount *a = AUTOMOUNT(u);
+        void *p;
+        Iterator i;
+
+        assert(a);
+        assert(f);
+        assert(fds);
+
+        unit_serialize_item(u, f, "state", automount_state_to_string(a->state));
+        unit_serialize_item(u, f, "result", automount_result_to_string(a->result));
+        unit_serialize_item_format(u, f, "dev-id", "%u", (unsigned) a->dev_id);
+
+        SET_FOREACH(p, a->tokens, i)
+                unit_serialize_item_format(u, f, "token", "%u", PTR_TO_UINT(p));
+
+        if (a->pipe_fd >= 0) {
+                int copy;
+
+                if ((copy = fdset_put_dup(fds, a->pipe_fd)) < 0)
+                        return copy;
+
+                unit_serialize_item_format(u, f, "pipe-fd", "%i", copy);
+        }
+
+        return 0;
+}
+
+static int automount_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
+        Automount *a = AUTOMOUNT(u);
+        int r;
+
+        assert(a);
+        assert(fds);
+
+        if (streq(key, "state")) {
+                AutomountState state;
+
+                if ((state = automount_state_from_string(value)) < 0)
+                        log_debug("Failed to parse state value %s", value);
+                else
+                        a->deserialized_state = state;
+        } else if (streq(key, "result")) {
+                AutomountResult f;
+
+                f = automount_result_from_string(value);
+                if (f < 0)
+                        log_debug("Failed to parse result value %s", value);
+                else if (f != AUTOMOUNT_SUCCESS)
+                        a->result = f;
+
+        } else if (streq(key, "dev-id")) {
+                unsigned d;
+
+                if (safe_atou(value, &d) < 0)
+                        log_debug("Failed to parse dev-id value %s", value);
+                else
+                        a->dev_id = (unsigned) d;
+        } else if (streq(key, "token")) {
+                unsigned token;
+
+                if (safe_atou(value, &token) < 0)
+                        log_debug("Failed to parse token value %s", value);
+                else {
+                        if (!a->tokens)
+                                if (!(a->tokens = set_new(trivial_hash_func, trivial_compare_func)))
+                                        return -ENOMEM;
+
+                        if ((r = set_put(a->tokens, UINT_TO_PTR(token))) < 0)
+                                return r;
+                }
+        } else if (streq(key, "pipe-fd")) {
+                int fd;
+
+                if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
+                        log_debug("Failed to parse pipe-fd value %s", value);
+                else {
+                        if (a->pipe_fd >= 0)
+                                close_nointr_nofail(a->pipe_fd);
+
+                        a->pipe_fd = fdset_remove(fds, fd);
+                }
+        } else
+                log_debug("Unknown serialization key '%s'", key);
+
+        return 0;
+}
+
+static UnitActiveState automount_active_state(Unit *u) {
+        assert(u);
+
+        return state_translation_table[AUTOMOUNT(u)->state];
+}
+
+static const char *automount_sub_state_to_string(Unit *u) {
+        assert(u);
+
+        return automount_state_to_string(AUTOMOUNT(u)->state);
+}
+
+static bool automount_check_gc(Unit *u) {
+        Automount *a = AUTOMOUNT(u);
+
+        assert(a);
+
+        if (!UNIT_DEREF(a->mount))
+                return false;
+
+        return UNIT_VTABLE(UNIT_DEREF(a->mount))->check_gc(UNIT_DEREF(a->mount));
+}
+
+static void automount_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
+        Automount *a = AUTOMOUNT(u);
+        union autofs_v5_packet_union packet;
+        ssize_t l;
+        int r;
+
+        assert(a);
+        assert(fd == a->pipe_fd);
+
+        if (events != EPOLLIN) {
+                log_error("Got invalid poll event on pipe.");
+                goto fail;
+        }
+
+        if ((l = loop_read(a->pipe_fd, &packet, sizeof(packet), true)) != sizeof(packet)) {
+                log_error("Invalid read from pipe: %s", l < 0 ? strerror(-l) : "short read");
+                goto fail;
+        }
+
+        switch (packet.hdr.type) {
+
+        case autofs_ptype_missing_direct:
+
+                if (packet.v5_packet.pid > 0) {
+                        char *p = NULL;
+
+                        get_process_comm(packet.v5_packet.pid, &p);
+                        log_debug("Got direct mount request for %s, triggered by %lu (%s)", packet.v5_packet.name, (unsigned long) packet.v5_packet.pid, strna(p));
+                        free(p);
+
+                } else
+                        log_debug("Got direct mount request for %s", packet.v5_packet.name);
+
+                if (!a->tokens)
+                        if (!(a->tokens = set_new(trivial_hash_func, trivial_compare_func))) {
+                                log_error("Failed to allocate token set.");
+                                goto fail;
+                        }
+
+                if ((r = set_put(a->tokens, UINT_TO_PTR(packet.v5_packet.wait_queue_token))) < 0) {
+                        log_error("Failed to remember token: %s", strerror(-r));
+                        goto fail;
+                }
+
+                automount_enter_runnning(a);
+                break;
+
+        default:
+                log_error("Received unknown automount request %i", packet.hdr.type);
+                break;
+        }
+
+        return;
+
+fail:
+        automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES);
+}
+
+static void automount_shutdown(Manager *m) {
+        assert(m);
+
+        if (m->dev_autofs_fd >= 0)
+                close_nointr_nofail(m->dev_autofs_fd);
+}
+
+static void automount_reset_failed(Unit *u) {
+        Automount *a = AUTOMOUNT(u);
+
+        assert(a);
+
+        if (a->state == AUTOMOUNT_FAILED)
+                automount_set_state(a, AUTOMOUNT_DEAD);
+
+        a->result = AUTOMOUNT_SUCCESS;
+}
+
+static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = {
+        [AUTOMOUNT_DEAD] = "dead",
+        [AUTOMOUNT_WAITING] = "waiting",
+        [AUTOMOUNT_RUNNING] = "running",
+        [AUTOMOUNT_FAILED] = "failed"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(automount_state, AutomountState);
+
+static const char* const automount_result_table[_AUTOMOUNT_RESULT_MAX] = {
+        [AUTOMOUNT_SUCCESS] = "success",
+        [AUTOMOUNT_FAILURE_RESOURCES] = "resources"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(automount_result, AutomountResult);
+
+const UnitVTable automount_vtable = {
+        .suffix = ".automount",
+        .object_size = sizeof(Automount),
+        .sections =
+                "Unit\0"
+                "Automount\0"
+                "Install\0",
+
+        .no_alias = true,
+        .no_instances = true,
+
+        .init = automount_init,
+        .load = automount_load,
+        .done = automount_done,
+
+        .coldplug = automount_coldplug,
+
+        .dump = automount_dump,
+
+        .start = automount_start,
+        .stop = automount_stop,
+
+        .serialize = automount_serialize,
+        .deserialize_item = automount_deserialize_item,
+
+        .active_state = automount_active_state,
+        .sub_state_to_string = automount_sub_state_to_string,
+
+        .check_gc = automount_check_gc,
+
+        .fd_event = automount_fd_event,
+
+        .reset_failed = automount_reset_failed,
+
+        .bus_interface = "org.freedesktop.systemd1.Automount",
+        .bus_message_handler = bus_automount_message_handler,
+        .bus_invalidating_properties = bus_automount_invalidating_properties,
+
+        .shutdown = automount_shutdown
+};