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-rw-r--r--src/systemd-run/run.c1258
1 files changed, 1258 insertions, 0 deletions
diff --git a/src/systemd-run/run.c b/src/systemd-run/run.c
new file mode 100644
index 0000000000..67706f84a0
--- /dev/null
+++ b/src/systemd-run/run.c
@@ -0,0 +1,1258 @@
+/***
+ 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 <systemd/sd-bus.h>
+#include <systemd/sd-event.h>
+
+#include "alloc-util.h"
+#include "bus-error.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 "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 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 or timer\n"
+ "unit. If timer option is specified and unit is exist which is\n"
+ "specified with --unit option then command can be omitted.\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 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"
+ " --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"
+ " --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\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_NO_ASK_PASSWORD,
+ ARG_USER,
+ ARG_SYSTEM,
+ ARG_SCOPE,
+ ARG_UNIT,
+ ARG_DESCRIPTION,
+ ARG_SLICE,
+ ARG_SEND_SIGHUP,
+ ARG_EXEC_USER,
+ ARG_EXEC_GROUP,
+ ARG_SERVICE_TYPE,
+ ARG_NICE,
+ ARG_SETENV,
+ ARG_TTY,
+ 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,
+ };
+
+ 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 },
+ { "uid", required_argument, NULL, ARG_EXEC_USER },
+ { "gid", required_argument, NULL, ARG_EXEC_GROUP },
+ { "nice", required_argument, NULL, ARG_NICE },
+ { "setenv", required_argument, NULL, ARG_SETENV },
+ { "property", required_argument, NULL, 'p' },
+ { "tty", 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:p:tq", options, NULL)) >= 0)
+
+ switch (c) {
+
+ case 'h':
+ help();
+ return 0;
+
+ case ARG_NO_ASK_PASSWORD:
+ arg_ask_password = false;
+ break;
+
+ case ARG_VERSION:
+ return version();
+
+ 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 = safe_atoi(optarg, &arg_nice);
+ if (r < 0 || arg_nice < PRIO_MIN || arg_nice >= PRIO_MAX) {
+ log_error("Failed to parse nice value");
+ return -EINVAL;
+ }
+
+ arg_nice_set = true;
+ break;
+
+ case ARG_SETENV:
+ 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 '?':
+ 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;
+ }
+
+ return 1;
+}
+
+static int transient_unit_set_properties(sd_bus_message *m, char **properties) {
+ char **i;
+ int r;
+
+ r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
+ if (r < 0)
+ return r;
+
+ STRV_FOREACH(i, properties) {
+ r = bus_append_unit_property_assignment(m, *i);
+ 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_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 = 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;
+}
+
+static int start_transient_service(
+ sd_bus *bus,
+ char **argv) {
+
+ _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);
+
+ 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;
+ 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 {
+ 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 (master >= 0) {
+ _cleanup_(pty_forward_freep) PTYForward *forward = NULL;
+ _cleanup_(sd_event_unrefp) 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_(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(&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_(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 (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_(sd_bus_flush_close_unrefp) 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;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-06 00:02:41 +0000