| /*** |
| This file is part of systemd. |
| |
| Copyright 2013 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 <getopt.h> |
| #include <stdio.h> |
| |
| #include "sd-bus.h" |
| #include "sd-event.h" |
| |
| #include "alloc-util.h" |
| #include "bus-error.h" |
| #include "bus-unit-util.h" |
| #include "bus-util.h" |
| #include "calendarspec.h" |
| #include "env-util.h" |
| #include "fd-util.h" |
| #include "formats-util.h" |
| #include "parse-util.h" |
| #include "path-util.h" |
| #include "process-util.h" |
| #include "ptyfwd.h" |
| #include "signal-util.h" |
| #include "spawn-polkit-agent.h" |
| #include "strv.h" |
| #include "terminal-util.h" |
| #include "unit-name.h" |
| #include "user-util.h" |
| |
| static bool arg_ask_password = true; |
| static bool arg_scope = false; |
| static bool arg_remain_after_exit = false; |
| static bool arg_no_block = false; |
| static bool arg_wait = false; |
| static const char *arg_unit = NULL; |
| static const char *arg_description = NULL; |
| static const char *arg_slice = NULL; |
| static bool arg_send_sighup = false; |
| static BusTransport arg_transport = BUS_TRANSPORT_LOCAL; |
| static const char *arg_host = NULL; |
| static bool arg_user = false; |
| static const char *arg_service_type = NULL; |
| static const char *arg_exec_user = NULL; |
| static const char *arg_exec_group = NULL; |
| static int arg_nice = 0; |
| static bool arg_nice_set = false; |
| static char **arg_environment = NULL; |
| static char **arg_property = NULL; |
| static bool arg_pty = false; |
| static usec_t arg_on_active = 0; |
| static usec_t arg_on_boot = 0; |
| static usec_t arg_on_startup = 0; |
| static usec_t arg_on_unit_active = 0; |
| static usec_t arg_on_unit_inactive = 0; |
| static const char *arg_on_calendar = NULL; |
| static char **arg_timer_property = NULL; |
| static bool arg_quiet = false; |
| |
| static void polkit_agent_open_if_enabled(void) { |
| |
| /* Open the polkit agent as a child process if necessary */ |
| if (!arg_ask_password) |
| return; |
| |
| if (arg_transport != BUS_TRANSPORT_LOCAL) |
| return; |
| |
| polkit_agent_open(); |
| } |
| |
| static void help(void) { |
| printf("%s [OPTIONS...] {COMMAND} [ARGS...]\n\n" |
| "Run the specified command in a transient scope or service.\n\n" |
| " -h --help Show this help\n" |
| " --version Show package version\n" |
| " --no-ask-password Do not prompt for password\n" |
| " --user Run as user unit\n" |
| " -H --host=[USER@]HOST Operate on remote host\n" |
| " -M --machine=CONTAINER Operate on local container\n" |
| " --scope Run this as scope rather than service\n" |
| " --unit=UNIT Run under the specified unit name\n" |
| " -p --property=NAME=VALUE Set service or scope unit property\n" |
| " --description=TEXT Description for unit\n" |
| " --slice=SLICE Run in the specified slice\n" |
| " --no-block Do not wait until operation finished\n" |
| " -r --remain-after-exit Leave service around until explicitly stopped\n" |
| " --wait Wait until service stopped again\n" |
| " --send-sighup Send SIGHUP when terminating\n" |
| " --service-type=TYPE Service type\n" |
| " --uid=USER Run as system user\n" |
| " --gid=GROUP Run as system group\n" |
| " --nice=NICE Nice level\n" |
| " -E --setenv=NAME=VALUE Set environment\n" |
| " -t --pty Run service on pseudo tty\n" |
| " -q --quiet Suppress information messages during runtime\n\n" |
| "Timer options:\n" |
| " --on-active=SECONDS Run after SECONDS delay\n" |
| " --on-boot=SECONDS Run SECONDS after machine was booted up\n" |
| " --on-startup=SECONDS Run SECONDS after systemd activation\n" |
| " --on-unit-active=SECONDS Run SECONDS after the last activation\n" |
| " --on-unit-inactive=SECONDS Run SECONDS after the last deactivation\n" |
| " --on-calendar=SPEC Realtime timer\n" |
| " --timer-property=NAME=VALUE Set timer unit property\n" |
| , program_invocation_short_name); |
| } |
| |
| static bool with_timer(void) { |
| return arg_on_active || arg_on_boot || arg_on_startup || arg_on_unit_active || arg_on_unit_inactive || arg_on_calendar; |
| } |
| |
| static int parse_argv(int argc, char *argv[]) { |
| |
| enum { |
| ARG_VERSION = 0x100, |
| ARG_USER, |
| ARG_SYSTEM, |
| ARG_SCOPE, |
| ARG_UNIT, |
| ARG_DESCRIPTION, |
| ARG_SLICE, |
| ARG_SEND_SIGHUP, |
| ARG_SERVICE_TYPE, |
| ARG_EXEC_USER, |
| ARG_EXEC_GROUP, |
| ARG_NICE, |
| ARG_ON_ACTIVE, |
| ARG_ON_BOOT, |
| ARG_ON_STARTUP, |
| ARG_ON_UNIT_ACTIVE, |
| ARG_ON_UNIT_INACTIVE, |
| ARG_ON_CALENDAR, |
| ARG_TIMER_PROPERTY, |
| ARG_NO_BLOCK, |
| ARG_NO_ASK_PASSWORD, |
| ARG_WAIT, |
| }; |
| |
| static const struct option options[] = { |
| { "help", no_argument, NULL, 'h' }, |
| { "version", no_argument, NULL, ARG_VERSION }, |
| { "user", no_argument, NULL, ARG_USER }, |
| { "system", no_argument, NULL, ARG_SYSTEM }, |
| { "scope", no_argument, NULL, ARG_SCOPE }, |
| { "unit", required_argument, NULL, ARG_UNIT }, |
| { "description", required_argument, NULL, ARG_DESCRIPTION }, |
| { "slice", required_argument, NULL, ARG_SLICE }, |
| { "remain-after-exit", no_argument, NULL, 'r' }, |
| { "send-sighup", no_argument, NULL, ARG_SEND_SIGHUP }, |
| { "host", required_argument, NULL, 'H' }, |
| { "machine", required_argument, NULL, 'M' }, |
| { "service-type", required_argument, NULL, ARG_SERVICE_TYPE }, |
| { "wait", no_argument, NULL, ARG_WAIT }, |
| { "uid", required_argument, NULL, ARG_EXEC_USER }, |
| { "gid", required_argument, NULL, ARG_EXEC_GROUP }, |
| { "nice", required_argument, NULL, ARG_NICE }, |
| { "setenv", required_argument, NULL, 'E' }, |
| { "property", required_argument, NULL, 'p' }, |
| { "tty", no_argument, NULL, 't' }, /* deprecated */ |
| { "pty", no_argument, NULL, 't' }, |
| { "quiet", no_argument, NULL, 'q' }, |
| { "on-active", required_argument, NULL, ARG_ON_ACTIVE }, |
| { "on-boot", required_argument, NULL, ARG_ON_BOOT }, |
| { "on-startup", required_argument, NULL, ARG_ON_STARTUP }, |
| { "on-unit-active", required_argument, NULL, ARG_ON_UNIT_ACTIVE }, |
| { "on-unit-inactive", required_argument, NULL, ARG_ON_UNIT_INACTIVE }, |
| { "on-calendar", required_argument, NULL, ARG_ON_CALENDAR }, |
| { "timer-property", required_argument, NULL, ARG_TIMER_PROPERTY }, |
| { "no-block", no_argument, NULL, ARG_NO_BLOCK }, |
| { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, |
| {}, |
| }; |
| |
| int r, c; |
| |
| assert(argc >= 0); |
| assert(argv); |
| |
| while ((c = getopt_long(argc, argv, "+hrH:M:E:p:tq", options, NULL)) >= 0) |
| |
| switch (c) { |
| |
| case 'h': |
| help(); |
| return 0; |
| |
| case ARG_VERSION: |
| return version(); |
| |
| case ARG_NO_ASK_PASSWORD: |
| arg_ask_password = false; |
| break; |
| |
| case ARG_USER: |
| arg_user = true; |
| break; |
| |
| case ARG_SYSTEM: |
| arg_user = false; |
| break; |
| |
| case ARG_SCOPE: |
| arg_scope = true; |
| break; |
| |
| case ARG_UNIT: |
| arg_unit = optarg; |
| break; |
| |
| case ARG_DESCRIPTION: |
| arg_description = optarg; |
| break; |
| |
| case ARG_SLICE: |
| arg_slice = optarg; |
| break; |
| |
| case ARG_SEND_SIGHUP: |
| arg_send_sighup = true; |
| break; |
| |
| case 'r': |
| arg_remain_after_exit = true; |
| break; |
| |
| case 'H': |
| arg_transport = BUS_TRANSPORT_REMOTE; |
| arg_host = optarg; |
| break; |
| |
| case 'M': |
| arg_transport = BUS_TRANSPORT_MACHINE; |
| arg_host = optarg; |
| break; |
| |
| case ARG_SERVICE_TYPE: |
| arg_service_type = optarg; |
| break; |
| |
| case ARG_EXEC_USER: |
| arg_exec_user = optarg; |
| break; |
| |
| case ARG_EXEC_GROUP: |
| arg_exec_group = optarg; |
| break; |
| |
| case ARG_NICE: |
| r = parse_nice(optarg, &arg_nice); |
| if (r < 0) |
| return log_error_errno(r, "Failed to parse nice value: %s", optarg); |
| |
| arg_nice_set = true; |
| break; |
| |
| case 'E': |
| if (strv_extend(&arg_environment, optarg) < 0) |
| return log_oom(); |
| |
| break; |
| |
| case 'p': |
| if (strv_extend(&arg_property, optarg) < 0) |
| return log_oom(); |
| |
| break; |
| |
| case 't': |
| arg_pty = true; |
| break; |
| |
| case 'q': |
| arg_quiet = true; |
| break; |
| |
| case ARG_ON_ACTIVE: |
| |
| r = parse_sec(optarg, &arg_on_active); |
| if (r < 0) { |
| log_error("Failed to parse timer value: %s", optarg); |
| return r; |
| } |
| |
| break; |
| |
| case ARG_ON_BOOT: |
| |
| r = parse_sec(optarg, &arg_on_boot); |
| if (r < 0) { |
| log_error("Failed to parse timer value: %s", optarg); |
| return r; |
| } |
| |
| break; |
| |
| case ARG_ON_STARTUP: |
| |
| r = parse_sec(optarg, &arg_on_startup); |
| if (r < 0) { |
| log_error("Failed to parse timer value: %s", optarg); |
| return r; |
| } |
| |
| break; |
| |
| case ARG_ON_UNIT_ACTIVE: |
| |
| r = parse_sec(optarg, &arg_on_unit_active); |
| if (r < 0) { |
| log_error("Failed to parse timer value: %s", optarg); |
| return r; |
| } |
| |
| break; |
| |
| case ARG_ON_UNIT_INACTIVE: |
| |
| r = parse_sec(optarg, &arg_on_unit_inactive); |
| if (r < 0) { |
| log_error("Failed to parse timer value: %s", optarg); |
| return r; |
| } |
| |
| break; |
| |
| case ARG_ON_CALENDAR: { |
| CalendarSpec *spec = NULL; |
| |
| r = calendar_spec_from_string(optarg, &spec); |
| if (r < 0) { |
| log_error("Invalid calendar spec: %s", optarg); |
| return r; |
| } |
| |
| calendar_spec_free(spec); |
| arg_on_calendar = optarg; |
| break; |
| } |
| |
| case ARG_TIMER_PROPERTY: |
| |
| if (strv_extend(&arg_timer_property, optarg) < 0) |
| return log_oom(); |
| |
| break; |
| |
| case ARG_NO_BLOCK: |
| arg_no_block = true; |
| break; |
| |
| case ARG_WAIT: |
| arg_wait = true; |
| break; |
| |
| case '?': |
| return -EINVAL; |
| |
| default: |
| assert_not_reached("Unhandled option"); |
| } |
| |
| if ((optind >= argc) && (!arg_unit || !with_timer())) { |
| log_error("Command line to execute required."); |
| return -EINVAL; |
| } |
| |
| if (arg_user && arg_transport != BUS_TRANSPORT_LOCAL) { |
| log_error("Execution in user context is not supported on non-local systems."); |
| return -EINVAL; |
| } |
| |
| if (arg_scope && arg_transport != BUS_TRANSPORT_LOCAL) { |
| log_error("Scope execution is not supported on non-local systems."); |
| return -EINVAL; |
| } |
| |
| if (arg_scope && (arg_remain_after_exit || arg_service_type)) { |
| log_error("--remain-after-exit and --service-type= are not supported in --scope mode."); |
| return -EINVAL; |
| } |
| |
| if (arg_pty && (with_timer() || arg_scope)) { |
| log_error("--pty is not compatible in timer or --scope mode."); |
| return -EINVAL; |
| } |
| |
| if (arg_pty && arg_transport == BUS_TRANSPORT_REMOTE) { |
| log_error("--pty is only supported when connecting to the local system or containers."); |
| return -EINVAL; |
| } |
| |
| if (arg_scope && with_timer()) { |
| log_error("Timer options are not supported in --scope mode."); |
| return -EINVAL; |
| } |
| |
| if (arg_timer_property && !with_timer()) { |
| log_error("--timer-property= has no effect without any other timer options."); |
| return -EINVAL; |
| } |
| |
| if (arg_wait) { |
| if (arg_no_block) { |
| log_error("--wait may not be combined with --no-block."); |
| return -EINVAL; |
| } |
| |
| if (with_timer()) { |
| log_error("--wait may not be combined with timer operations."); |
| return -EINVAL; |
| } |
| |
| if (arg_scope) { |
| log_error("--wait may not be combined with --scope."); |
| return -EINVAL; |
| } |
| } |
| |
| return 1; |
| } |
| |
| static int transient_unit_set_properties(sd_bus_message *m, char **properties) { |
| int r; |
| |
| r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description); |
| if (r < 0) |
| return r; |
| |
| r = bus_append_unit_property_assignment_many(m, properties); |
| if (r < 0) |
| return r; |
| |
| return 0; |
| } |
| |
| static int transient_cgroup_set_properties(sd_bus_message *m) { |
| int r; |
| assert(m); |
| |
| if (!isempty(arg_slice)) { |
| _cleanup_free_ char *slice; |
| |
| r = unit_name_mangle_with_suffix(arg_slice, UNIT_NAME_NOGLOB, ".slice", &slice); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice); |
| if (r < 0) |
| return r; |
| } |
| |
| return 0; |
| } |
| |
| static int transient_kill_set_properties(sd_bus_message *m) { |
| assert(m); |
| |
| if (arg_send_sighup) |
| return sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", arg_send_sighup); |
| else |
| return 0; |
| } |
| |
| static int transient_service_set_properties(sd_bus_message *m, char **argv, const char *pty_path) { |
| 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 = transient_cgroup_set_properties(m); |
| if (r < 0) |
| return r; |
| |
| if (arg_wait) { |
| r = sd_bus_message_append(m, "(sv)", "AddRef", "b", 1); |
| if (r < 0) |
| return r; |
| } |
| |
| if (arg_remain_after_exit) { |
| r = sd_bus_message_append(m, "(sv)", "RemainAfterExit", "b", arg_remain_after_exit); |
| if (r < 0) |
| return r; |
| } |
| |
| if (arg_service_type) { |
| r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_service_type); |
| if (r < 0) |
| return r; |
| } |
| |
| if (arg_exec_user) { |
| r = sd_bus_message_append(m, "(sv)", "User", "s", arg_exec_user); |
| if (r < 0) |
| return r; |
| } |
| |
| if (arg_exec_group) { |
| r = sd_bus_message_append(m, "(sv)", "Group", "s", arg_exec_group); |
| if (r < 0) |
| return r; |
| } |
| |
| if (arg_nice_set) { |
| r = sd_bus_message_append(m, "(sv)", "Nice", "i", arg_nice); |
| if (r < 0) |
| return r; |
| } |
| |
| if (pty_path) { |
| const char *e; |
| |
| r = sd_bus_message_append(m, |
| "(sv)(sv)(sv)(sv)", |
| "StandardInput", "s", "tty", |
| "StandardOutput", "s", "tty", |
| "StandardError", "s", "tty", |
| "TTYPath", "s", pty_path); |
| if (r < 0) |
| return r; |
| |
| e = getenv("TERM"); |
| if (e) { |
| char *n; |
| |
| n = strjoina("TERM=", e); |
| r = sd_bus_message_append(m, |
| "(sv)", |
| "Environment", "as", 1, n); |
| if (r < 0) |
| return r; |
| } |
| } |
| |
| 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 = transient_cgroup_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; |
| |
| /* Automatically clean up our transient timers */ |
| r = sd_bus_message_append(m, "(sv)", "RemainAfterElapse", "b", false); |
| 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 make_unit_name(sd_bus *bus, UnitType t, char **ret) { |
| const char *unique, *id; |
| char *p; |
| int r; |
| |
| assert(bus); |
| assert(t >= 0); |
| assert(t < _UNIT_TYPE_MAX); |
| |
| r = sd_bus_get_unique_name(bus, &unique); |
| if (r < 0) { |
| sd_id128_t rnd; |
| |
| /* We couldn't get the unique name, which is a pretty |
| * common case if we are connected to systemd |
| * directly. In that case, just pick a random uuid as |
| * name */ |
| |
| r = sd_id128_randomize(&rnd); |
| if (r < 0) |
| return log_error_errno(r, "Failed to generate random run unit name: %m"); |
| |
| if (asprintf(ret, "run-r" SD_ID128_FORMAT_STR ".%s", SD_ID128_FORMAT_VAL(rnd), unit_type_to_string(t)) < 0) |
| return log_oom(); |
| |
| return 0; |
| } |
| |
| /* We managed to get the unique name, then let's use that to |
| * name our transient units. */ |
| |
| id = startswith(unique, ":1."); |
| if (!id) { |
| log_error("Unique name %s has unexpected format.", unique); |
| return -EINVAL; |
| } |
| |
| p = strjoin("run-u", id, ".", unit_type_to_string(t), NULL); |
| if (!p) |
| return log_oom(); |
| |
| *ret = p; |
| return 0; |
| } |
| |
| typedef struct RunContext { |
| sd_bus *bus; |
| sd_event *event; |
| PTYForward *forward; |
| sd_bus_slot *match; |
| |
| /* The exit data of the unit */ |
| char *active_state; |
| uint64_t inactive_exit_usec; |
| uint64_t inactive_enter_usec; |
| char *result; |
| uint64_t cpu_usage_nsec; |
| uint32_t exit_code; |
| uint32_t exit_status; |
| } RunContext; |
| |
| static void run_context_free(RunContext *c) { |
| assert(c); |
| |
| c->forward = pty_forward_free(c->forward); |
| c->match = sd_bus_slot_unref(c->match); |
| c->bus = sd_bus_unref(c->bus); |
| c->event = sd_event_unref(c->event); |
| |
| free(c->active_state); |
| free(c->result); |
| } |
| |
| static void run_context_check_done(RunContext *c) { |
| bool done = true; |
| |
| assert(c); |
| |
| if (c->match) |
| done = done && (c->active_state && STR_IN_SET(c->active_state, "inactive", "failed")); |
| |
| if (c->forward) |
| done = done && pty_forward_is_done(c->forward); |
| |
| if (done) |
| sd_event_exit(c->event, EXIT_SUCCESS); |
| } |
| |
| static int on_properties_changed(sd_bus_message *m, void *userdata, sd_bus_error *error) { |
| |
| static const struct bus_properties_map map[] = { |
| { "ActiveState", "s", NULL, offsetof(RunContext, active_state) }, |
| { "InactiveExitTimestampMonotonic", "t", NULL, offsetof(RunContext, inactive_exit_usec) }, |
| { "InactiveEnterTimestampMonotonic", "t", NULL, offsetof(RunContext, inactive_enter_usec) }, |
| { "Result", "s", NULL, offsetof(RunContext, result) }, |
| { "ExecMainCode", "i", NULL, offsetof(RunContext, exit_code) }, |
| { "ExecMainStatus", "i", NULL, offsetof(RunContext, exit_status) }, |
| { "CPUUsageNSec", "t", NULL, offsetof(RunContext, cpu_usage_nsec) }, |
| {} |
| }; |
| |
| RunContext *c = userdata; |
| int r; |
| |
| r = bus_map_all_properties(c->bus, |
| "org.freedesktop.systemd1", |
| sd_bus_message_get_path(m), |
| map, |
| c); |
| if (r < 0) { |
| sd_event_exit(c->event, EXIT_FAILURE); |
| return log_error_errno(r, "Failed to query unit state: %m"); |
| } |
| |
| run_context_check_done(c); |
| return 0; |
| } |
| |
| static int pty_forward_handler(PTYForward *f, int rcode, void *userdata) { |
| RunContext *c = userdata; |
| |
| assert(f); |
| |
| if (rcode < 0) { |
| sd_event_exit(c->event, EXIT_FAILURE); |
| return log_error_errno(rcode, "Error on PTY forwarding logic: %m"); |
| } |
| |
| run_context_check_done(c); |
| return 0; |
| } |
| |
| static int start_transient_service( |
| sd_bus *bus, |
| char **argv, |
| int *retval) { |
| |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; |
| _cleanup_(sd_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); |
| assert(retval); |
| |
| 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_(sd_bus_unrefp) sd_bus *system_bus = NULL; |
| _cleanup_(sd_bus_message_unrefp) sd_bus_message *pty_reply = 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, |
| &pty_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(pty_reply, "hs", &master, &s); |
| if (r < 0) |
| return bus_log_parse_error(r); |
| |
| 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 { |
| r = make_unit_name(bus, UNIT_SERVICE, &service); |
| if (r < 0) |
| return r; |
| } |
| |
| 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 (!arg_quiet) |
| log_info("Running as unit: %s", service); |
| |
| if (arg_wait || master >= 0) { |
| _cleanup_(run_context_free) RunContext c = {}; |
| |
| c.bus = sd_bus_ref(bus); |
| |
| r = sd_event_default(&c.event); |
| if (r < 0) |
| return log_error_errno(r, "Failed to get event loop: %m"); |
| |
| if (master >= 0) { |
| assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0); |
| (void) sd_event_add_signal(c.event, NULL, SIGINT, NULL, NULL); |
| (void) sd_event_add_signal(c.event, NULL, SIGTERM, NULL, NULL); |
| |
| if (!arg_quiet) |
| log_info("Press ^] three times within 1s to disconnect TTY."); |
| |
| r = pty_forward_new(c.event, master, PTY_FORWARD_IGNORE_INITIAL_VHANGUP, &c.forward); |
| if (r < 0) |
| return log_error_errno(r, "Failed to create PTY forwarder: %m"); |
| |
| pty_forward_set_handler(c.forward, pty_forward_handler, &c); |
| } |
| |
| if (arg_wait) { |
| _cleanup_free_ char *path = NULL; |
| const char *mt; |
| |
| path = unit_dbus_path_from_name(service); |
| if (!path) |
| return log_oom(); |
| |
| mt = strjoina("type='signal'," |
| "sender='org.freedesktop.systemd1'," |
| "path='", path, "'," |
| "interface='org.freedesktop.DBus.Properties'," |
| "member='PropertiesChanged'"); |
| r = sd_bus_add_match(bus, &c.match, mt, on_properties_changed, &c); |
| if (r < 0) |
| return log_error_errno(r, "Failed to add properties changed signal."); |
| |
| r = sd_bus_attach_event(bus, c.event, 0); |
| if (r < 0) |
| return log_error_errno(r, "Failed to attach bus to event loop."); |
| } |
| |
| r = sd_event_loop(c.event); |
| if (r < 0) |
| return log_error_errno(r, "Failed to run event loop: %m"); |
| |
| if (c.forward) { |
| char last_char = 0; |
| |
| r = pty_forward_get_last_char(c.forward, &last_char); |
| if (r >= 0 && !arg_quiet && last_char != '\n') |
| fputc('\n', stdout); |
| } |
| |
| if (!arg_quiet) { |
| if (!isempty(c.result)) |
| log_info("Finished with result: %s", strna(c.result)); |
| |
| if (c.exit_code == CLD_EXITED) |
| log_info("Main processes terminated with: code=%s/status=%i", sigchld_code_to_string(c.exit_code), c.exit_status); |
| else if (c.exit_code > 0) |
| log_info("Main processes terminated with: code=%s/status=%s", sigchld_code_to_string(c.exit_code), signal_to_string(c.exit_status)); |
| |
| if (c.inactive_enter_usec > 0 && c.inactive_enter_usec != USEC_INFINITY && |
| c.inactive_exit_usec > 0 && c.inactive_exit_usec != USEC_INFINITY && |
| c.inactive_enter_usec > c.inactive_exit_usec) { |
| char ts[FORMAT_TIMESPAN_MAX]; |
| log_info("Service runtime: %s", format_timespan(ts, sizeof(ts), c.inactive_enter_usec - c.inactive_exit_usec, USEC_PER_MSEC)); |
| } |
| |
| if (c.cpu_usage_nsec > 0 && c.cpu_usage_nsec != NSEC_INFINITY) { |
| char ts[FORMAT_TIMESPAN_MAX]; |
| log_info("CPU time consumed: %s", format_timespan(ts, sizeof(ts), (c.cpu_usage_nsec + NSEC_PER_USEC - 1) / NSEC_PER_USEC, USEC_PER_MSEC)); |
| } |
| } |
| |
| /* Try to propagate the service's return value */ |
| if (c.result && STR_IN_SET(c.result, "success", "exit-code") && c.exit_code == CLD_EXITED) |
| *retval = c.exit_status; |
| else |
| *retval = EXIT_FAILURE; |
| } |
| |
| return 0; |
| } |
| |
| static int start_transient_scope( |
| sd_bus *bus, |
| char **argv) { |
| |
| _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| _cleanup_(sd_bus_message_unrefp) 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 { |
| r = make_unit_name(bus, UNIT_SCOPE, &scope); |
| if (r < 0) |
| return r; |
| } |
| |
| 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_clean(&arg_exec_user, &uid, &gid, &home, &shell); |
| if (r < 0) |
| return log_error_errno(r, "Failed to resolve user %s: %m", arg_exec_user); |
| |
| if (home) { |
| r = strv_extendf(&user_env, "HOME=%s", home); |
| if (r < 0) |
| return log_oom(); |
| } |
| |
| if (shell) { |
| 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_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
| _cleanup_(sd_bus_message_unrefp) 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 { |
| r = make_unit_name(bus, UNIT_SERVICE, &service); |
| if (r < 0) |
| return r; |
| |
| r = unit_name_change_suffix(service, ".timer", &timer); |
| if (r < 0) |
| return log_error_errno(r, "Failed to change unit suffix: %m"); |
| } |
| |
| 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 (!strv_isempty(argv)) { |
| 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; |
| |
| if (!arg_quiet) { |
| 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_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; |
| _cleanup_free_ char *description = NULL, *command = NULL; |
| int r, retval = EXIT_SUCCESS; |
| |
| 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; |
| } |
| |
| /* If --wait is used connect via the bus, unconditionally, as ref/unref is not supported via the limited direct |
| * connection */ |
| if (arg_wait) |
| r = bus_connect_transport(arg_transport, arg_host, arg_user, &bus); |
| else |
| 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, &retval); |
| |
| finish: |
| strv_free(arg_environment); |
| strv_free(arg_property); |
| strv_free(arg_timer_property); |
| |
| return r < 0 ? EXIT_FAILURE : retval; |
| } |