#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"
#include "path-util.h"
-#include "dbus-common.h"
+#include "dbus-automount.h"
+#include "bus-util.h"
+#include "bus-error.h"
static const UnitActiveState state_translation_table[_AUTOMOUNT_STATE_MAX] = {
[AUTOMOUNT_DEAD] = UNIT_INACTIVE,
};
static int open_dev_autofs(Manager *m);
+static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, void *userdata);
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->pipe_fd = -1;
a->directory_mode = 0755;
-
UNIT(a)->ignore_on_isolate = true;
}
continue;
if (errno != EINVAL)
- log_error("Failed to unmount: %m");
+ log_error_errno(errno, "Failed to unmount: %m");
break;
}
automount_send_ready(a, -EHOSTDOWN);
- unit_unwatch_fd(UNIT(a), &a->pipe_watch);
- close_nointr_nofail(a->pipe_fd);
- a->pipe_fd = -1;
+ a->pipe_event_source = sd_event_source_unref(a->pipe_event_source);
+ a->pipe_fd = safe_close(a->pipe_fd);
/* If we reload/reexecute things we keep the mount point
* around */
static int automount_verify(Automount *a) {
bool b;
- char *e;
+ _cleanup_free_ char *e = NULL;
assert(a);
if (UNIT(a)->load_state != UNIT_LOADED)
return 0;
if (path_equal(a->where, "/")) {
- log_error_unit(UNIT(a)->id, "Cannot have an automount unit for the root directory. Refusing.");
+ log_unit_error(UNIT(a)->id, "Cannot have an automount unit for the root directory. Refusing.");
return -EINVAL;
}
return -ENOMEM;
b = unit_has_name(UNIT(a), e);
- free(e);
if (!b) {
- log_error_unit(UNIT(a)->id, "%s's Where setting doesn't match unit name. Refusing.", UNIT(a)->id);
+ log_unit_error(UNIT(a)->id, "%s's Where setting doesn't match unit name. Refusing.", UNIT(a)->id);
return -EINVAL;
}
unmount_autofs(a);
if (state != old_state)
- log_debug_unit(UNIT(a)->id,
+ log_unit_debug(UNIT(a)->id,
"%s changed %s -> %s",
UNIT(a)->id,
automount_state_to_string(old_state),
assert(a->pipe_fd >= 0);
- r = unit_watch_fd(UNIT(a), a->pipe_fd, EPOLLIN, &a->pipe_watch);
+ r = sd_event_add_io(u->manager->event, &a->pipe_event_source, a->pipe_fd, EPOLLIN, automount_dispatch_io, u);
if (r < 0)
return r;
}
label_fix("/dev/autofs", false, false);
m->dev_autofs_fd = open("/dev/autofs", O_CLOEXEC|O_RDONLY);
- if (m->dev_autofs_fd < 0) {
- log_error("Failed to open /dev/autofs: %s", strerror(errno));
- return -errno;
- }
+ if (m->dev_autofs_fd < 0)
+ return log_error_errno(errno, "Failed to open /dev/autofs: %m");
init_autofs_dev_ioctl(¶m);
if (ioctl(m->dev_autofs_fd, AUTOFS_DEV_IOCTL_VERSION, ¶m) < 0) {
- close_nointr_nofail(m->dev_autofs_fd);
- m->dev_autofs_fd = -1;
+ m->dev_autofs_fd = safe_close(m->dev_autofs_fd);
return -errno;
}
}
int automount_send_ready(Automount *a, int status) {
- int ioctl_fd, r;
+ _cleanup_close_ int ioctl_fd = -1;
unsigned token;
+ int r;
assert(a);
assert(status <= 0);
return 0;
ioctl_fd = open_ioctl_fd(UNIT(a)->manager->dev_autofs_fd, a->where, a->dev_id);
- if (ioctl_fd < 0) {
- r = ioctl_fd;
- goto fail;
- }
+ if (ioctl_fd < 0)
+ return ioctl_fd;
if (status)
- log_debug_unit(UNIT(a)->id, "Sending failure: %s", strerror(-status));
+ log_unit_debug_errno(UNIT(a)->id, status, "Sending failure: %m");
else
- log_debug_unit(UNIT(a)->id, "Sending success.");
+ log_unit_debug(UNIT(a)->id, "Sending success.");
r = 0;
r = k;
}
-fail:
- if (ioctl_fd >= 0)
- close_nointr_nofail(ioctl_fd);
-
return r;
}
static void automount_enter_waiting(Automount *a) {
+ _cleanup_close_ int ioctl_fd = -1;
int p[2] = { -1, -1 };
- char name[32], options[128];
+ char name[sizeof("systemd-")-1 + DECIMAL_STR_MAX(pid_t) + 1];
+ char options[sizeof("fd=,pgrp=,minproto=5,maxproto=5,direct")-1
+ + DECIMAL_STR_MAX(int) + DECIMAL_STR_MAX(gid_t) + 1];
bool mounted = false;
- int r, ioctl_fd = -1, dev_autofs_fd;
+ int r, dev_autofs_fd;
struct stat st;
assert(a);
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);
-
+ xsprintf(options, "fd=%i,pgrp="PID_FMT",minproto=5,maxproto=5,direct", p[1], getpgrp());
+ xsprintf(name, "systemd-"PID_FMT, getpid());
if (mount(name, a->where, "autofs", 0, options) < 0) {
r = -errno;
goto fail;
mounted = true;
- close_nointr_nofail(p[1]);
- p[1] = -1;
+ p[1] = safe_close(p[1]);
if (stat(a->where, &st) < 0) {
r = -errno;
* the direct mount will not receive events from the
* kernel. */
- close_nointr_nofail(ioctl_fd);
- ioctl_fd = -1;
-
- r = unit_watch_fd(UNIT(a), p[0], EPOLLIN, &a->pipe_watch);
+ r = sd_event_add_io(UNIT(a)->manager->event, &a->pipe_event_source, p[0], EPOLLIN, automount_dispatch_io, a);
if (r < 0)
goto fail;
return;
fail:
- assert_se(close_pipe(p) == 0);
-
- if (ioctl_fd >= 0)
- close_nointr_nofail(ioctl_fd);
+ safe_close_pair(p);
if (mounted)
repeat_unmount(a->where);
- log_error_unit(UNIT(a)->id,
+ log_unit_error(UNIT(a)->id,
"Failed to initialize automounter: %s", strerror(-r));
automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES);
}
static void automount_enter_runnning(Automount *a) {
- _cleanup_dbus_error_free_ DBusError error;
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
struct stat st;
int r;
assert(a);
- dbus_error_init(&error);
-
/* We don't take mount requests anymore if we are supposed to
* shut down anyway */
if (unit_stop_pending(UNIT(a))) {
- log_debug_unit(UNIT(a)->id,
+ log_unit_debug(UNIT(a)->id,
"Suppressing automount request on %s since unit stop is scheduled.", UNIT(a)->id);
automount_send_ready(a, -EHOSTDOWN);
return;
/* Before we do anything, let's see if somebody is playing games with us? */
if (lstat(a->where, &st) < 0) {
- log_warning_unit(UNIT(a)->id,
+ log_unit_warning(UNIT(a)->id,
"%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_unit(UNIT(a)->id,
+ log_unit_info(UNIT(a)->id,
"%s's automount point already active?", UNIT(a)->id);
else {
r = manager_add_job(UNIT(a)->manager, JOB_START, UNIT_TRIGGER(UNIT(a)),
JOB_REPLACE, true, &error, NULL);
if (r < 0) {
- log_warning_unit(UNIT(a)->id,
+ log_unit_warning(UNIT(a)->id,
"%s failed to queue mount startup job: %s",
- UNIT(a)->id, bus_error(&error, r));
+ UNIT(a)->id, bus_error_message(&error, r));
goto fail;
}
}
assert(a->state == AUTOMOUNT_DEAD || a->state == AUTOMOUNT_FAILED);
if (path_is_mount_point(a->where, false)) {
- log_error_unit(u->id,
+ log_unit_error(u->id,
"Path %s is already a mount point, refusing start for %s",
a->where, u->id);
return -EEXIST;
a->result = AUTOMOUNT_SUCCESS;
automount_enter_waiting(a);
- return 0;
+ return 1;
}
static int automount_stop(Unit *u) {
assert(a->state == AUTOMOUNT_WAITING || a->state == AUTOMOUNT_RUNNING);
automount_enter_dead(a, AUTOMOUNT_SUCCESS);
- return 0;
+ return 1;
}
static int automount_serialize(Unit *u, FILE *f, FDSet *fds) {
state = automount_state_from_string(value);
if (state < 0)
- log_debug_unit(u->id, "Failed to parse state value %s", value);
+ log_unit_debug(u->id, "Failed to parse state value %s", value);
else
a->deserialized_state = state;
} else if (streq(key, "result")) {
f = automount_result_from_string(value);
if (f < 0)
- log_debug_unit(u->id, "Failed to parse result value %s", value);
+ log_unit_debug(u->id, "Failed to parse result value %s", value);
else if (f != AUTOMOUNT_SUCCESS)
a->result = f;
unsigned d;
if (safe_atou(value, &d) < 0)
- log_debug_unit(u->id, "Failed to parse dev-id value %s", value);
+ log_unit_debug(u->id, "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_unit(u->id, "Failed to parse token value %s", value);
+ log_unit_debug(u->id, "Failed to parse token value %s", value);
else {
if (!a->tokens)
- if (!(a->tokens = set_new(trivial_hash_func, trivial_compare_func)))
+ if (!(a->tokens = set_new(NULL)))
return -ENOMEM;
r = set_put(a->tokens, UINT_TO_PTR(token));
int fd;
if (safe_atoi(value, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd))
- log_debug_unit(u->id, "Failed to parse pipe-fd value %s", value);
+ log_unit_debug(u->id, "Failed to parse pipe-fd value %s", value);
else {
- if (a->pipe_fd >= 0)
- close_nointr_nofail(a->pipe_fd);
-
+ safe_close(a->pipe_fd);
a->pipe_fd = fdset_remove(fds, fd);
}
} else
- log_debug_unit(u->id, "Unknown serialization key '%s'", key);
+ log_unit_debug(u->id, "Unknown serialization key '%s'", key);
return 0;
}
return UNIT_VTABLE(UNIT_TRIGGER(u))->check_gc(UNIT_TRIGGER(u));
}
-static void automount_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
- Automount *a = AUTOMOUNT(u);
+static int automount_dispatch_io(sd_event_source *s, int fd, uint32_t events, void *userdata) {
union autofs_v5_packet_union packet;
+ Automount *a = AUTOMOUNT(userdata);
ssize_t l;
int r;
assert(fd == a->pipe_fd);
if (events != EPOLLIN) {
- log_error_unit(u->id, "Got invalid poll event on pipe.");
+ log_unit_error(UNIT(a)->id, "Got invalid poll event on pipe.");
goto fail;
}
l = loop_read(a->pipe_fd, &packet, sizeof(packet), true);
if (l != sizeof(packet)) {
- log_error_unit(u->id, "Invalid read from pipe: %s", l < 0 ? strerror(-l) : "short read");
+ if (l < 0)
+ log_unit_error_errno(UNIT(a)->id, l, "Invalid read from pipe: %m");
+ else
+ log_unit_error(UNIT(a)->id, "Invalid read from pipe: short read");
goto fail;
}
_cleanup_free_ char *p = NULL;
get_process_comm(packet.v5_packet.pid, &p);
- log_debug_unit(u->id,
- "Got direct mount request on %s, triggered by %lu (%s)",
- a->where, (unsigned long) packet.v5_packet.pid, strna(p));
+ log_unit_info(UNIT(a)->id,
+ "Got automount request for %s, triggered by %"PRIu32" (%s)",
+ a->where, packet.v5_packet.pid, strna(p));
} else
- log_debug_unit(u->id, "Got direct mount request on %s", a->where);
+ log_unit_debug(UNIT(a)->id, "Got direct mount request on %s", a->where);
- r = set_ensure_allocated(&a->tokens, trivial_hash_func, trivial_compare_func);
+ r = set_ensure_allocated(&a->tokens, NULL);
if (r < 0) {
- log_error_unit(u->id, "Failed to allocate token set.");
+ log_unit_error(UNIT(a)->id, "Failed to allocate token set.");
goto fail;
}
r = set_put(a->tokens, UINT_TO_PTR(packet.v5_packet.wait_queue_token));
if (r < 0) {
- log_error_unit(u->id, "Failed to remember token: %s", strerror(-r));
+ log_unit_error_errno(UNIT(a)->id, r, "Failed to remember token: %m");
goto fail;
}
break;
default:
- log_error_unit(u->id, "Received unknown automount request %i", packet.hdr.type);
+ log_unit_error(UNIT(a)->id, "Received unknown automount request %i", packet.hdr.type);
break;
}
- return;
+ return 0;
fail:
automount_enter_dead(a, AUTOMOUNT_FAILURE_RESOURCES);
+ return 0;
}
static void automount_shutdown(Manager *m) {
assert(m);
- if (m->dev_autofs_fd >= 0)
- close_nointr_nofail(m->dev_autofs_fd);
+ m->dev_autofs_fd = safe_close(m->dev_autofs_fd);
}
static void automount_reset_failed(Unit *u) {
a->result = AUTOMOUNT_SUCCESS;
}
+static bool automount_supported(Manager *m) {
+ static int supported = -1;
+
+ assert(m);
+
+ if (supported < 0)
+ supported = access("/dev/autofs", F_OK) >= 0;
+
+ return supported;
+}
+
static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = {
[AUTOMOUNT_DEAD] = "dead",
[AUTOMOUNT_WAITING] = "waiting",
const UnitVTable automount_vtable = {
.object_size = sizeof(Automount),
+
.sections =
"Unit\0"
"Automount\0"
.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,
+ .bus_vtable = bus_automount_vtable,
.shutdown = automount_shutdown,
+ .supported = automount_supported,
.status_message_formats = {
.finished_start_job = {