307 lines
14 KiB
C
307 lines
14 KiB
C
/*-*- 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 Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include "alloc-util.h"
|
|
#include "async.h"
|
|
#include "bus-util.h"
|
|
#include "dbus-cgroup.h"
|
|
#include "dbus-execute.h"
|
|
#include "dbus-kill.h"
|
|
#include "dbus-service.h"
|
|
#include "fd-util.h"
|
|
#include "fileio.h"
|
|
#include "path-util.h"
|
|
#include "service.h"
|
|
#include "string-util.h"
|
|
#include "strv.h"
|
|
#include "unit.h"
|
|
|
|
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, service_type, ServiceType);
|
|
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, service_result, ServiceResult);
|
|
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_restart, service_restart, ServiceRestart);
|
|
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_notify_access, notify_access, NotifyAccess);
|
|
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_failure_action, failure_action, FailureAction);
|
|
|
|
const sd_bus_vtable bus_service_vtable[] = {
|
|
SD_BUS_VTABLE_START(0),
|
|
SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Service, type), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Restart", "s", property_get_restart, offsetof(Service, restart), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PIDFile", "s", NULL, offsetof(Service, pid_file), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("NotifyAccess", "s", property_get_notify_access, offsetof(Service, notify_access), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RestartUSec", "t", bus_property_get_usec, offsetof(Service, restart_usec), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("TimeoutStartUSec", "t", bus_property_get_usec, offsetof(Service, timeout_start_usec), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Service, timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("WatchdogUSec", "t", bus_property_get_usec, offsetof(Service, watchdog_usec), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
BUS_PROPERTY_DUAL_TIMESTAMP("WatchdogTimestamp", offsetof(Service, watchdog_timestamp), 0),
|
|
SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Service, start_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Service, start_limit.burst), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("StartLimitAction", "s", property_get_failure_action, offsetof(Service, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Service, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("FailureAction", "s", property_get_failure_action, offsetof(Service, failure_action), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PermissionsStartOnly", "b", bus_property_get_bool, offsetof(Service, permissions_start_only), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RootDirectoryStartOnly", "b", bus_property_get_bool, offsetof(Service, root_directory_start_only), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RemainAfterExit", "b", bus_property_get_bool, offsetof(Service, remain_after_exit), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("GuessMainPID", "b", bus_property_get_bool, offsetof(Service, guess_main_pid), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("MainPID", "u", bus_property_get_pid, offsetof(Service, main_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Service, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
SD_BUS_PROPERTY("BusName", "s", NULL, offsetof(Service, bus_name), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("FileDescriptorStoreMax", "u", NULL, offsetof(Service, n_fd_store_max), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("StatusText", "s", NULL, offsetof(Service, status_text), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
SD_BUS_PROPERTY("StatusErrno", "i", NULL, offsetof(Service, status_errno), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Service, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
SD_BUS_PROPERTY("USBFunctionDescriptors", "s", NULL, offsetof(Service, usb_function_descriptors), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
SD_BUS_PROPERTY("USBFunctionStrings", "s", NULL, offsetof(Service, usb_function_strings), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
BUS_EXEC_STATUS_VTABLE("ExecMain", offsetof(Service, main_exec_status), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
|
|
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
|
|
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStart", offsetof(Service, exec_command[SERVICE_EXEC_START]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
|
|
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPost", offsetof(Service, exec_command[SERVICE_EXEC_START_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
|
|
BUS_EXEC_COMMAND_LIST_VTABLE("ExecReload", offsetof(Service, exec_command[SERVICE_EXEC_RELOAD]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
|
|
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStop", offsetof(Service, exec_command[SERVICE_EXEC_STOP]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
|
|
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPost", offsetof(Service, exec_command[SERVICE_EXEC_STOP_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
|
|
SD_BUS_VTABLE_END
|
|
};
|
|
|
|
static int bus_service_set_transient_property(
|
|
Service *s,
|
|
const char *name,
|
|
sd_bus_message *message,
|
|
UnitSetPropertiesMode mode,
|
|
sd_bus_error *error) {
|
|
|
|
int r;
|
|
|
|
assert(s);
|
|
assert(name);
|
|
assert(message);
|
|
|
|
if (streq(name, "RemainAfterExit")) {
|
|
int b;
|
|
|
|
r = sd_bus_message_read(message, "b", &b);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
s->remain_after_exit = b;
|
|
unit_write_drop_in_private_format(UNIT(s), mode, name, "RemainAfterExit=%s\n", yes_no(b));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "Type")) {
|
|
const char *t;
|
|
ServiceType k;
|
|
|
|
r = sd_bus_message_read(message, "s", &t);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
k = service_type_from_string(t);
|
|
if (k < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid service type %s", t);
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
s->type = k;
|
|
unit_write_drop_in_private_format(UNIT(s), mode, name, "Type=%s\n", service_type_to_string(s->type));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (STR_IN_SET(name,
|
|
"StandardInputFileDescriptor",
|
|
"StandardOutputFileDescriptor",
|
|
"StandardErrorFileDescriptor")) {
|
|
int fd;
|
|
|
|
r = sd_bus_message_read(message, "h", &fd);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
int copy;
|
|
|
|
copy = fcntl(fd, F_DUPFD_CLOEXEC, 3);
|
|
if (copy < 0)
|
|
return -errno;
|
|
|
|
if (streq(name, "StandardInputFileDescriptor")) {
|
|
asynchronous_close(s->stdin_fd);
|
|
s->stdin_fd = copy;
|
|
} else if (streq(name, "StandardOutputFileDescriptor")) {
|
|
asynchronous_close(s->stdout_fd);
|
|
s->stdout_fd = copy;
|
|
} else {
|
|
asynchronous_close(s->stderr_fd);
|
|
s->stderr_fd = copy;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "ExecStart")) {
|
|
unsigned n = 0;
|
|
|
|
r = sd_bus_message_enter_container(message, 'a', "(sasb)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
while ((r = sd_bus_message_enter_container(message, 'r', "sasb")) > 0) {
|
|
_cleanup_strv_free_ char **argv = NULL;
|
|
const char *path;
|
|
int b;
|
|
|
|
r = sd_bus_message_read(message, "s", &path);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!path_is_absolute(path))
|
|
return sd_bus_error_set_errnof(error, EINVAL, "Path %s is not absolute.", path);
|
|
|
|
r = sd_bus_message_read_strv(message, &argv);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_read(message, "b", &b);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_exit_container(message);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
ExecCommand *c;
|
|
|
|
c = new0(ExecCommand, 1);
|
|
if (!c)
|
|
return -ENOMEM;
|
|
|
|
c->path = strdup(path);
|
|
if (!c->path) {
|
|
free(c);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
c->argv = argv;
|
|
argv = NULL;
|
|
|
|
c->ignore = b;
|
|
|
|
path_kill_slashes(c->path);
|
|
exec_command_append_list(&s->exec_command[SERVICE_EXEC_START], c);
|
|
}
|
|
|
|
n++;
|
|
}
|
|
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_exit_container(message);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
_cleanup_free_ char *buf = NULL;
|
|
_cleanup_fclose_ FILE *f = NULL;
|
|
ExecCommand *c;
|
|
size_t size = 0;
|
|
|
|
if (n == 0)
|
|
s->exec_command[SERVICE_EXEC_START] = exec_command_free_list(s->exec_command[SERVICE_EXEC_START]);
|
|
|
|
f = open_memstream(&buf, &size);
|
|
if (!f)
|
|
return -ENOMEM;
|
|
|
|
fputs("ExecStart=\n", f);
|
|
|
|
LIST_FOREACH(command, c, s->exec_command[SERVICE_EXEC_START]) {
|
|
_cleanup_free_ char *a;
|
|
|
|
a = strv_join_quoted(c->argv);
|
|
if (!a)
|
|
return -ENOMEM;
|
|
|
|
fprintf(f, "ExecStart=%s@%s %s\n",
|
|
c->ignore ? "-" : "",
|
|
c->path,
|
|
a);
|
|
}
|
|
|
|
r = fflush_and_check(f);
|
|
if (r < 0)
|
|
return r;
|
|
unit_write_drop_in_private(UNIT(s), mode, name, buf);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int bus_service_set_property(
|
|
Unit *u,
|
|
const char *name,
|
|
sd_bus_message *message,
|
|
UnitSetPropertiesMode mode,
|
|
sd_bus_error *error) {
|
|
|
|
Service *s = SERVICE(u);
|
|
int r;
|
|
|
|
assert(s);
|
|
assert(name);
|
|
assert(message);
|
|
|
|
r = bus_cgroup_set_property(u, &s->cgroup_context, name, message, mode, error);
|
|
if (r != 0)
|
|
return r;
|
|
|
|
if (u->transient && u->load_state == UNIT_STUB) {
|
|
/* This is a transient unit, let's load a little more */
|
|
|
|
r = bus_service_set_transient_property(s, name, message, mode, error);
|
|
if (r != 0)
|
|
return r;
|
|
|
|
r = bus_exec_context_set_transient_property(u, &s->exec_context, name, message, mode, error);
|
|
if (r != 0)
|
|
return r;
|
|
|
|
r = bus_kill_context_set_transient_property(u, &s->kill_context, name, message, mode, error);
|
|
if (r != 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int bus_service_commit_properties(Unit *u) {
|
|
assert(u);
|
|
|
|
unit_update_cgroup_members_masks(u);
|
|
unit_realize_cgroup(u);
|
|
|
|
return 0;
|
|
}
|