1206 lines
41 KiB
C
1206 lines
41 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <getopt.h>
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#include <stdio.h>
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#include "sd-bus.h"
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#include "sd-event.h"
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#include "bus-error.h"
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#include "bus-util.h"
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#include "calendarspec.h"
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#include "env-util.h"
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#include "event-util.h"
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#include "fd-util.h"
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#include "formats-util.h"
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#include "path-util.h"
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#include "ptyfwd.h"
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#include "signal-util.h"
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#include "spawn-polkit-agent.h"
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#include "strv.h"
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#include "terminal-util.h"
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#include "unit-name.h"
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#include "user-util.h"
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static bool arg_ask_password = true;
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static bool arg_scope = false;
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static bool arg_remain_after_exit = false;
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static bool arg_no_block = false;
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static const char *arg_unit = NULL;
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static const char *arg_description = NULL;
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static const char *arg_slice = NULL;
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static bool arg_send_sighup = false;
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static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
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static const char *arg_host = NULL;
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static bool arg_user = false;
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static const char *arg_service_type = NULL;
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static const char *arg_exec_user = NULL;
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static const char *arg_exec_group = NULL;
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static int arg_nice = 0;
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static bool arg_nice_set = false;
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static char **arg_environment = NULL;
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static char **arg_property = NULL;
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static bool arg_pty = false;
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static usec_t arg_on_active = 0;
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static usec_t arg_on_boot = 0;
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static usec_t arg_on_startup = 0;
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static usec_t arg_on_unit_active = 0;
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static usec_t arg_on_unit_inactive = 0;
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static const char *arg_on_calendar = NULL;
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static char **arg_timer_property = NULL;
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static bool arg_quiet = false;
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static void polkit_agent_open_if_enabled(void) {
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/* Open the polkit agent as a child process if necessary */
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if (!arg_ask_password)
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return;
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if (arg_transport != BUS_TRANSPORT_LOCAL)
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return;
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polkit_agent_open();
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}
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static void help(void) {
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printf("%s [OPTIONS...] {COMMAND} [ARGS...]\n\n"
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"Run the specified command in a transient scope or service or timer\n"
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"unit. If timer option is specified and unit is exist which is\n"
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"specified with --unit option then command can be omitted.\n\n"
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" -h --help Show this help\n"
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" --version Show package version\n"
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" --no-ask-password Do not prompt for password\n"
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" --user Run as user unit\n"
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" -H --host=[USER@]HOST Operate on remote host\n"
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" -M --machine=CONTAINER Operate on local container\n"
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" --scope Run this as scope rather than service\n"
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" --unit=UNIT Run under the specified unit name\n"
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" -p --property=NAME=VALUE Set unit property\n"
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" --description=TEXT Description for unit\n"
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" --slice=SLICE Run in the specified slice\n"
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" --no-block Do not wait until operation finished\n"
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" -r --remain-after-exit Leave service around until explicitly stopped\n"
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" --send-sighup Send SIGHUP when terminating\n"
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" --service-type=TYPE Service type\n"
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" --uid=USER Run as system user\n"
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" --gid=GROUP Run as system group\n"
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" --nice=NICE Nice level\n"
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" --setenv=NAME=VALUE Set environment\n"
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" -t --pty Run service on pseudo tty\n"
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" -q --quiet Suppress information messages during runtime\n\n"
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"Timer options:\n\n"
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" --on-active=SECONDS Run after SECONDS delay\n"
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" --on-boot=SECONDS Run SECONDS after machine was booted up\n"
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" --on-startup=SECONDS Run SECONDS after systemd activation\n"
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" --on-unit-active=SECONDS Run SECONDS after the last activation\n"
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" --on-unit-inactive=SECONDS Run SECONDS after the last deactivation\n"
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" --on-calendar=SPEC Realtime timer\n"
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" --timer-property=NAME=VALUE Set timer unit property\n",
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program_invocation_short_name);
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}
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static bool with_timer(void) {
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return arg_on_active || arg_on_boot || arg_on_startup || arg_on_unit_active || arg_on_unit_inactive || arg_on_calendar;
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}
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static int parse_argv(int argc, char *argv[]) {
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enum {
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ARG_VERSION = 0x100,
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ARG_NO_ASK_PASSWORD,
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ARG_USER,
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ARG_SYSTEM,
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ARG_SCOPE,
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ARG_UNIT,
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ARG_DESCRIPTION,
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ARG_SLICE,
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ARG_SEND_SIGHUP,
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ARG_EXEC_USER,
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ARG_EXEC_GROUP,
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ARG_SERVICE_TYPE,
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ARG_NICE,
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ARG_SETENV,
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ARG_TTY,
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ARG_ON_ACTIVE,
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ARG_ON_BOOT,
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ARG_ON_STARTUP,
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ARG_ON_UNIT_ACTIVE,
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ARG_ON_UNIT_INACTIVE,
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ARG_ON_CALENDAR,
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ARG_TIMER_PROPERTY,
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ARG_NO_BLOCK,
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};
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static const struct option options[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "version", no_argument, NULL, ARG_VERSION },
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{ "user", no_argument, NULL, ARG_USER },
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{ "system", no_argument, NULL, ARG_SYSTEM },
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{ "scope", no_argument, NULL, ARG_SCOPE },
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{ "unit", required_argument, NULL, ARG_UNIT },
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{ "description", required_argument, NULL, ARG_DESCRIPTION },
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{ "slice", required_argument, NULL, ARG_SLICE },
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{ "remain-after-exit", no_argument, NULL, 'r' },
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{ "send-sighup", no_argument, NULL, ARG_SEND_SIGHUP },
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{ "host", required_argument, NULL, 'H' },
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{ "machine", required_argument, NULL, 'M' },
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{ "service-type", required_argument, NULL, ARG_SERVICE_TYPE },
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{ "uid", required_argument, NULL, ARG_EXEC_USER },
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{ "gid", required_argument, NULL, ARG_EXEC_GROUP },
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{ "nice", required_argument, NULL, ARG_NICE },
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{ "setenv", required_argument, NULL, ARG_SETENV },
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{ "property", required_argument, NULL, 'p' },
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{ "tty", no_argument, NULL, 't' },
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{ "quiet", no_argument, NULL, 'q' },
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{ "on-active", required_argument, NULL, ARG_ON_ACTIVE },
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{ "on-boot", required_argument, NULL, ARG_ON_BOOT },
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{ "on-startup", required_argument, NULL, ARG_ON_STARTUP },
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{ "on-unit-active", required_argument, NULL, ARG_ON_UNIT_ACTIVE },
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{ "on-unit-inactive", required_argument, NULL, ARG_ON_UNIT_INACTIVE },
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{ "on-calendar", required_argument, NULL, ARG_ON_CALENDAR },
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{ "timer-property", required_argument, NULL, ARG_TIMER_PROPERTY },
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{ "no-block", no_argument, NULL, ARG_NO_BLOCK },
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{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
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{},
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};
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int r, c;
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assert(argc >= 0);
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assert(argv);
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while ((c = getopt_long(argc, argv, "+hrH:M:p:tq", options, NULL)) >= 0)
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switch (c) {
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case 'h':
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help();
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return 0;
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case ARG_NO_ASK_PASSWORD:
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arg_ask_password = false;
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break;
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case ARG_VERSION:
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return version();
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case ARG_USER:
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arg_user = true;
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break;
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case ARG_SYSTEM:
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arg_user = false;
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break;
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case ARG_SCOPE:
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arg_scope = true;
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break;
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case ARG_UNIT:
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arg_unit = optarg;
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break;
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case ARG_DESCRIPTION:
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arg_description = optarg;
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break;
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case ARG_SLICE:
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arg_slice = optarg;
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break;
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case ARG_SEND_SIGHUP:
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arg_send_sighup = true;
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break;
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case 'r':
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arg_remain_after_exit = true;
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break;
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case 'H':
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arg_transport = BUS_TRANSPORT_REMOTE;
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arg_host = optarg;
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break;
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case 'M':
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arg_transport = BUS_TRANSPORT_MACHINE;
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arg_host = optarg;
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break;
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case ARG_SERVICE_TYPE:
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arg_service_type = optarg;
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break;
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case ARG_EXEC_USER:
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arg_exec_user = optarg;
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break;
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case ARG_EXEC_GROUP:
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arg_exec_group = optarg;
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break;
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case ARG_NICE:
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r = safe_atoi(optarg, &arg_nice);
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if (r < 0 || arg_nice < PRIO_MIN || arg_nice >= PRIO_MAX) {
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log_error("Failed to parse nice value");
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return -EINVAL;
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}
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arg_nice_set = true;
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break;
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case ARG_SETENV:
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if (strv_extend(&arg_environment, optarg) < 0)
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return log_oom();
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break;
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case 'p':
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if (strv_extend(&arg_property, optarg) < 0)
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return log_oom();
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break;
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case 't':
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arg_pty = true;
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break;
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case 'q':
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arg_quiet = true;
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break;
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case ARG_ON_ACTIVE:
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r = parse_sec(optarg, &arg_on_active);
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if (r < 0) {
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log_error("Failed to parse timer value: %s", optarg);
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return r;
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}
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break;
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case ARG_ON_BOOT:
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r = parse_sec(optarg, &arg_on_boot);
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if (r < 0) {
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log_error("Failed to parse timer value: %s", optarg);
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return r;
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}
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break;
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case ARG_ON_STARTUP:
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r = parse_sec(optarg, &arg_on_startup);
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if (r < 0) {
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log_error("Failed to parse timer value: %s", optarg);
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return r;
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}
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break;
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case ARG_ON_UNIT_ACTIVE:
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r = parse_sec(optarg, &arg_on_unit_active);
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if (r < 0) {
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log_error("Failed to parse timer value: %s", optarg);
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return r;
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}
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break;
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case ARG_ON_UNIT_INACTIVE:
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r = parse_sec(optarg, &arg_on_unit_inactive);
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if (r < 0) {
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log_error("Failed to parse timer value: %s", optarg);
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return r;
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}
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break;
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case ARG_ON_CALENDAR: {
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CalendarSpec *spec = NULL;
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r = calendar_spec_from_string(optarg, &spec);
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if (r < 0) {
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log_error("Invalid calendar spec: %s", optarg);
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return r;
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}
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calendar_spec_free(spec);
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arg_on_calendar = optarg;
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break;
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}
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case ARG_TIMER_PROPERTY:
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if (strv_extend(&arg_timer_property, optarg) < 0)
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return log_oom();
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break;
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case ARG_NO_BLOCK:
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arg_no_block = true;
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break;
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case '?':
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return -EINVAL;
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default:
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assert_not_reached("Unhandled option");
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}
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if ((optind >= argc) && (!arg_unit || !with_timer())) {
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log_error("Command line to execute required.");
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return -EINVAL;
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}
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if (arg_user && arg_transport != BUS_TRANSPORT_LOCAL) {
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log_error("Execution in user context is not supported on non-local systems.");
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return -EINVAL;
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}
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if (arg_scope && arg_transport != BUS_TRANSPORT_LOCAL) {
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log_error("Scope execution is not supported on non-local systems.");
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return -EINVAL;
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}
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if (arg_scope && (arg_remain_after_exit || arg_service_type)) {
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log_error("--remain-after-exit and --service-type= are not supported in --scope mode.");
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return -EINVAL;
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}
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if (arg_pty && (with_timer() || arg_scope)) {
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log_error("--pty is not compatible in timer or --scope mode.");
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return -EINVAL;
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}
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if (arg_pty && arg_transport == BUS_TRANSPORT_REMOTE) {
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log_error("--pty is only supported when connecting to the local system or containers.");
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return -EINVAL;
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}
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if (arg_scope && with_timer()) {
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log_error("Timer options are not supported in --scope mode.");
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return -EINVAL;
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}
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if (arg_timer_property && !with_timer()) {
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log_error("--timer-property= has no effect without any other timer options.");
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return -EINVAL;
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}
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return 1;
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}
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static int transient_unit_set_properties(sd_bus_message *m, char **properties) {
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char **i;
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int r;
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r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
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if (r < 0)
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return r;
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STRV_FOREACH(i, properties) {
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r = sd_bus_message_open_container(m, 'r', "sv");
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if (r < 0)
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return r;
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r = bus_append_unit_property_assignment(m, *i);
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if (r < 0)
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return r;
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r = sd_bus_message_close_container(m);
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if (r < 0)
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return r;
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}
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return 0;
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}
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static int transient_cgroup_set_properties(sd_bus_message *m) {
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int r;
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assert(m);
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if (!isempty(arg_slice)) {
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_cleanup_free_ char *slice;
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r = unit_name_mangle_with_suffix(arg_slice, UNIT_NAME_NOGLOB, ".slice", &slice);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
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if (r < 0)
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return r;
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}
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return 0;
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}
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static int transient_kill_set_properties(sd_bus_message *m) {
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assert(m);
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if (arg_send_sighup)
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return sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", arg_send_sighup);
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else
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return 0;
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}
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static int transient_service_set_properties(sd_bus_message *m, char **argv, const char *pty_path) {
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int r;
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assert(m);
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r = transient_unit_set_properties(m, arg_property);
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if (r < 0)
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return r;
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r = transient_kill_set_properties(m);
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if (r < 0)
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return r;
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r = transient_cgroup_set_properties(m);
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if (r < 0)
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return r;
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if (arg_remain_after_exit) {
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r = sd_bus_message_append(m, "(sv)", "RemainAfterExit", "b", arg_remain_after_exit);
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if (r < 0)
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return r;
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}
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if (arg_service_type) {
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r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_service_type);
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if (r < 0)
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return r;
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}
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if (arg_exec_user) {
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r = sd_bus_message_append(m, "(sv)", "User", "s", arg_exec_user);
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if (r < 0)
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return r;
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}
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if (arg_exec_group) {
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r = sd_bus_message_append(m, "(sv)", "Group", "s", arg_exec_group);
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if (r < 0)
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return r;
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}
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if (arg_nice_set) {
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r = sd_bus_message_append(m, "(sv)", "Nice", "i", arg_nice);
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if (r < 0)
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return r;
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}
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if (pty_path) {
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const char *e;
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r = sd_bus_message_append(m,
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"(sv)(sv)(sv)(sv)",
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"StandardInput", "s", "tty",
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"StandardOutput", "s", "tty",
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"StandardError", "s", "tty",
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"TTYPath", "s", pty_path);
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if (r < 0)
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return r;
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e = getenv("TERM");
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if (e) {
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char *n;
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n = strjoina("TERM=", e);
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r = sd_bus_message_append(m,
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"(sv)",
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"Environment", "as", 1, n);
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if (r < 0)
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return r;
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}
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}
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|
|
|
if (!strv_isempty(arg_environment)) {
|
|
r = sd_bus_message_open_container(m, 'r', "sv");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(m, "s", "Environment");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(m, 'v', "as");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append_strv(m, arg_environment);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
/* Exec container */
|
|
{
|
|
r = sd_bus_message_open_container(m, 'r', "sv");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(m, "s", "ExecStart");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(m, 'v', "a(sasb)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(m, 'a', "(sasb)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(m, 'r', "sasb");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(m, "s", argv[0]);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append_strv(m, argv);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(m, "b", false);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int transient_scope_set_properties(sd_bus_message *m) {
|
|
int r;
|
|
|
|
assert(m);
|
|
|
|
r = transient_unit_set_properties(m, arg_property);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = transient_kill_set_properties(m);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, (uint32_t) getpid());
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int transient_timer_set_properties(sd_bus_message *m) {
|
|
int r;
|
|
|
|
assert(m);
|
|
|
|
r = transient_unit_set_properties(m, arg_timer_property);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (arg_on_active) {
|
|
r = sd_bus_message_append(m, "(sv)", "OnActiveSec", "t", arg_on_active);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_on_boot) {
|
|
r = sd_bus_message_append(m, "(sv)", "OnBootSec", "t", arg_on_boot);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_on_startup) {
|
|
r = sd_bus_message_append(m, "(sv)", "OnStartupSec", "t", arg_on_startup);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_on_unit_active) {
|
|
r = sd_bus_message_append(m, "(sv)", "OnUnitActiveSec", "t", arg_on_unit_active);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_on_unit_inactive) {
|
|
r = sd_bus_message_append(m, "(sv)", "OnUnitInactiveSec", "t", arg_on_unit_inactive);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_on_calendar) {
|
|
r = sd_bus_message_append(m, "(sv)", "OnCalendar", "s", arg_on_calendar);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int start_transient_service(
|
|
sd_bus *bus,
|
|
char **argv) {
|
|
|
|
_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
|
|
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
|
|
_cleanup_free_ char *service = NULL, *pty_path = NULL;
|
|
_cleanup_close_ int master = -1;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(argv);
|
|
|
|
if (arg_pty) {
|
|
|
|
if (arg_transport == BUS_TRANSPORT_LOCAL) {
|
|
master = posix_openpt(O_RDWR|O_NOCTTY|O_CLOEXEC|O_NDELAY);
|
|
if (master < 0)
|
|
return log_error_errno(errno, "Failed to acquire pseudo tty: %m");
|
|
|
|
r = ptsname_malloc(master, &pty_path);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to determine tty name: %m");
|
|
|
|
if (unlockpt(master) < 0)
|
|
return log_error_errno(errno, "Failed to unlock tty: %m");
|
|
|
|
} else if (arg_transport == BUS_TRANSPORT_MACHINE) {
|
|
_cleanup_bus_unref_ sd_bus *system_bus = NULL;
|
|
const char *s;
|
|
|
|
r = sd_bus_default_system(&system_bus);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to connect to system bus: %m");
|
|
|
|
r = sd_bus_call_method(system_bus,
|
|
"org.freedesktop.machine1",
|
|
"/org/freedesktop/machine1",
|
|
"org.freedesktop.machine1.Manager",
|
|
"OpenMachinePTY",
|
|
&error,
|
|
&reply,
|
|
"s", arg_host);
|
|
if (r < 0) {
|
|
log_error("Failed to get machine PTY: %s", bus_error_message(&error, -r));
|
|
return r;
|
|
}
|
|
|
|
r = sd_bus_message_read(reply, "hs", &master, &s);
|
|
if (r < 0)
|
|
return bus_log_parse_error(r);
|
|
|
|
reply = sd_bus_message_unref(reply);
|
|
|
|
master = fcntl(master, F_DUPFD_CLOEXEC, 3);
|
|
if (master < 0)
|
|
return log_error_errno(errno, "Failed to duplicate master fd: %m");
|
|
|
|
pty_path = strdup(s);
|
|
if (!pty_path)
|
|
return log_oom();
|
|
} else
|
|
assert_not_reached("Can't allocate tty via ssh");
|
|
}
|
|
|
|
if (!arg_no_block) {
|
|
r = bus_wait_for_jobs_new(bus, &w);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not watch jobs: %m");
|
|
}
|
|
|
|
if (arg_unit) {
|
|
r = unit_name_mangle_with_suffix(arg_unit, UNIT_NAME_NOGLOB, ".service", &service);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to mangle unit name: %m");
|
|
} else if (asprintf(&service, "run-"PID_FMT".service", getpid()) < 0)
|
|
return log_oom();
|
|
|
|
r = sd_bus_message_new_method_call(
|
|
bus,
|
|
&m,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StartTransientUnit");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Name and mode */
|
|
r = sd_bus_message_append(m, "ss", service, "fail");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Properties */
|
|
r = sd_bus_message_open_container(m, 'a', "(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = transient_service_set_properties(m, argv, pty_path);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Auxiliary units */
|
|
r = sd_bus_message_append(m, "a(sa(sv))", 0);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
polkit_agent_open_if_enabled();
|
|
|
|
r = sd_bus_call(bus, m, 0, &error, &reply);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to start transient service unit: %s", bus_error_message(&error, r));
|
|
|
|
if (w) {
|
|
const char *object;
|
|
|
|
r = sd_bus_message_read(reply, "o", &object);
|
|
if (r < 0)
|
|
return bus_log_parse_error(r);
|
|
|
|
r = bus_wait_for_jobs_one(w, object, arg_quiet);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (master >= 0) {
|
|
_cleanup_(pty_forward_freep) PTYForward *forward = NULL;
|
|
_cleanup_event_unref_ sd_event *event = NULL;
|
|
char last_char = 0;
|
|
|
|
r = sd_event_default(&event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to get event loop: %m");
|
|
|
|
assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0);
|
|
|
|
(void) sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
|
|
(void) sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
|
|
|
|
if (!arg_quiet)
|
|
log_info("Running as unit %s.\nPress ^] three times within 1s to disconnect TTY.", service);
|
|
|
|
r = pty_forward_new(event, master, PTY_FORWARD_IGNORE_INITIAL_VHANGUP, &forward);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to create PTY forwarder: %m");
|
|
|
|
r = sd_event_loop(event);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to run event loop: %m");
|
|
|
|
pty_forward_get_last_char(forward, &last_char);
|
|
|
|
forward = pty_forward_free(forward);
|
|
|
|
if (!arg_quiet && last_char != '\n')
|
|
fputc('\n', stdout);
|
|
|
|
} else if (!arg_quiet)
|
|
log_info("Running as unit %s.", service);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int start_transient_scope(
|
|
sd_bus *bus,
|
|
char **argv) {
|
|
|
|
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
|
|
_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
|
|
_cleanup_strv_free_ char **env = NULL, **user_env = NULL;
|
|
_cleanup_free_ char *scope = NULL;
|
|
const char *object = NULL;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(argv);
|
|
|
|
r = bus_wait_for_jobs_new(bus, &w);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
if (arg_unit) {
|
|
r = unit_name_mangle_with_suffix(arg_unit, UNIT_NAME_NOGLOB, ".scope", &scope);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to mangle scope name: %m");
|
|
} else if (asprintf(&scope, "run-"PID_FMT".scope", getpid()) < 0)
|
|
return log_oom();
|
|
|
|
r = sd_bus_message_new_method_call(
|
|
bus,
|
|
&m,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StartTransientUnit");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Name and Mode */
|
|
r = sd_bus_message_append(m, "ss", scope, "fail");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Properties */
|
|
r = sd_bus_message_open_container(m, 'a', "(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = transient_scope_set_properties(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Auxiliary units */
|
|
r = sd_bus_message_append(m, "a(sa(sv))", 0);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
polkit_agent_open_if_enabled();
|
|
|
|
r = sd_bus_call(bus, m, 0, &error, &reply);
|
|
if (r < 0) {
|
|
log_error("Failed to start transient scope unit: %s", bus_error_message(&error, -r));
|
|
return r;
|
|
}
|
|
|
|
if (arg_nice_set) {
|
|
if (setpriority(PRIO_PROCESS, 0, arg_nice) < 0)
|
|
return log_error_errno(errno, "Failed to set nice level: %m");
|
|
}
|
|
|
|
if (arg_exec_group) {
|
|
gid_t gid;
|
|
|
|
r = get_group_creds(&arg_exec_group, &gid);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to resolve group %s: %m", arg_exec_group);
|
|
|
|
if (setresgid(gid, gid, gid) < 0)
|
|
return log_error_errno(errno, "Failed to change GID to " GID_FMT ": %m", gid);
|
|
}
|
|
|
|
if (arg_exec_user) {
|
|
const char *home, *shell;
|
|
uid_t uid;
|
|
gid_t gid;
|
|
|
|
r = get_user_creds(&arg_exec_user, &uid, &gid, &home, &shell);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to resolve user %s: %m", arg_exec_user);
|
|
|
|
r = strv_extendf(&user_env, "HOME=%s", home);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
r = strv_extendf(&user_env, "SHELL=%s", shell);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
r = strv_extendf(&user_env, "USER=%s", arg_exec_user);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
r = strv_extendf(&user_env, "LOGNAME=%s", arg_exec_user);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
if (!arg_exec_group) {
|
|
if (setresgid(gid, gid, gid) < 0)
|
|
return log_error_errno(errno, "Failed to change GID to " GID_FMT ": %m", gid);
|
|
}
|
|
|
|
if (setresuid(uid, uid, uid) < 0)
|
|
return log_error_errno(errno, "Failed to change UID to " UID_FMT ": %m", uid);
|
|
}
|
|
|
|
env = strv_env_merge(3, environ, user_env, arg_environment);
|
|
if (!env)
|
|
return log_oom();
|
|
|
|
r = sd_bus_message_read(reply, "o", &object);
|
|
if (r < 0)
|
|
return bus_log_parse_error(r);
|
|
|
|
r = bus_wait_for_jobs_one(w, object, arg_quiet);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!arg_quiet)
|
|
log_info("Running scope as unit %s.", scope);
|
|
|
|
execvpe(argv[0], argv, env);
|
|
|
|
return log_error_errno(errno, "Failed to execute: %m");
|
|
}
|
|
|
|
static int start_transient_timer(
|
|
sd_bus *bus,
|
|
char **argv) {
|
|
|
|
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
|
|
_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
|
|
_cleanup_free_ char *timer = NULL, *service = NULL;
|
|
const char *object = NULL;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(argv);
|
|
|
|
r = bus_wait_for_jobs_new(bus, &w);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
if (arg_unit) {
|
|
switch (unit_name_to_type(arg_unit)) {
|
|
|
|
case UNIT_SERVICE:
|
|
service = strdup(arg_unit);
|
|
if (!service)
|
|
return log_oom();
|
|
|
|
r = unit_name_change_suffix(service, ".timer", &timer);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to change unit suffix: %m");
|
|
break;
|
|
|
|
case UNIT_TIMER:
|
|
timer = strdup(arg_unit);
|
|
if (!timer)
|
|
return log_oom();
|
|
|
|
r = unit_name_change_suffix(timer, ".service", &service);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to change unit suffix: %m");
|
|
break;
|
|
|
|
default:
|
|
r = unit_name_mangle_with_suffix(arg_unit, UNIT_NAME_NOGLOB, ".service", &service);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to mangle unit name: %m");
|
|
|
|
r = unit_name_mangle_with_suffix(arg_unit, UNIT_NAME_NOGLOB, ".timer", &timer);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to mangle unit name: %m");
|
|
|
|
break;
|
|
}
|
|
} else if ((asprintf(&service, "run-"PID_FMT".service", getpid()) < 0) ||
|
|
(asprintf(&timer, "run-"PID_FMT".timer", getpid()) < 0))
|
|
return log_oom();
|
|
|
|
r = sd_bus_message_new_method_call(
|
|
bus,
|
|
&m,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StartTransientUnit");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Name and Mode */
|
|
r = sd_bus_message_append(m, "ss", timer, "fail");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Properties */
|
|
r = sd_bus_message_open_container(m, 'a', "(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = transient_timer_set_properties(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_open_container(m, 'a', "(sa(sv))");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
if (argv[0]) {
|
|
r = sd_bus_message_open_container(m, 'r', "sa(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_append(m, "s", service);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_open_container(m, 'a', "(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = transient_service_set_properties(m, argv, NULL);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
}
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
polkit_agent_open_if_enabled();
|
|
|
|
r = sd_bus_call(bus, m, 0, &error, &reply);
|
|
if (r < 0) {
|
|
log_error("Failed to start transient timer unit: %s", bus_error_message(&error, -r));
|
|
return r;
|
|
}
|
|
|
|
r = sd_bus_message_read(reply, "o", &object);
|
|
if (r < 0)
|
|
return bus_log_parse_error(r);
|
|
|
|
r = bus_wait_for_jobs_one(w, object, arg_quiet);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
log_info("Running timer as unit %s.", timer);
|
|
if (argv[0])
|
|
log_info("Will run service as unit %s.", service);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int main(int argc, char* argv[]) {
|
|
_cleanup_bus_flush_close_unref_ sd_bus *bus = NULL;
|
|
_cleanup_free_ char *description = NULL, *command = NULL;
|
|
int r;
|
|
|
|
log_parse_environment();
|
|
log_open();
|
|
|
|
r = parse_argv(argc, argv);
|
|
if (r <= 0)
|
|
goto finish;
|
|
|
|
if (argc > optind && arg_transport == BUS_TRANSPORT_LOCAL) {
|
|
/* Patch in an absolute path */
|
|
|
|
r = find_binary(argv[optind], &command);
|
|
if (r < 0) {
|
|
log_error_errno(r, "Failed to find executable %s: %m", argv[optind]);
|
|
goto finish;
|
|
}
|
|
|
|
argv[optind] = command;
|
|
}
|
|
|
|
if (!arg_description) {
|
|
description = strv_join(argv + optind, " ");
|
|
if (!description) {
|
|
r = log_oom();
|
|
goto finish;
|
|
}
|
|
|
|
if (arg_unit && isempty(description)) {
|
|
r = free_and_strdup(&description, arg_unit);
|
|
if (r < 0)
|
|
goto finish;
|
|
}
|
|
|
|
arg_description = description;
|
|
}
|
|
|
|
r = bus_connect_transport_systemd(arg_transport, arg_host, arg_user, &bus);
|
|
if (r < 0) {
|
|
log_error_errno(r, "Failed to create bus connection: %m");
|
|
goto finish;
|
|
}
|
|
|
|
if (arg_scope)
|
|
r = start_transient_scope(bus, argv + optind);
|
|
else if (with_timer())
|
|
r = start_transient_timer(bus, argv + optind);
|
|
else
|
|
r = start_transient_service(bus, argv + optind);
|
|
|
|
finish:
|
|
strv_free(arg_environment);
|
|
strv_free(arg_property);
|
|
strv_free(arg_timer_property);
|
|
|
|
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|