1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
23 #include <dbus/dbus.h>
24 #include <sys/prctl.h>
26 #include "dbus-execute.h"
31 DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_execute_append_kill_mode, kill_mode, KillMode);
33 DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_execute_append_input, exec_input, ExecInput);
34 DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_execute_append_output, exec_output, ExecOutput);
36 int bus_execute_append_env_files(Manager *m, DBusMessageIter *i, const char *property, void *data) {
37 char **env_files = data, **j;
38 DBusMessageIter sub, sub2;
44 if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(sb)", &sub))
47 STRV_FOREACH(j, env_files) {
48 dbus_bool_t b = false;
56 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
57 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &fn) ||
58 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_BOOLEAN, &b) ||
59 !dbus_message_iter_close_container(&sub, &sub2))
63 if (!dbus_message_iter_close_container(i, &sub))
69 int bus_execute_append_oom_score_adjust(Manager *m, DBusMessageIter *i, const char *property, void *data) {
70 ExecContext *c = data;
78 if (c->oom_score_adjust_set)
79 n = c->oom_score_adjust;
84 if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0) {
87 } else if (read_one_line_file("/proc/self/oom_adj", &t) >= 0) {
91 if (n == OOM_ADJUST_MAX)
92 n = OOM_SCORE_ADJ_MAX;
94 n = (n * OOM_SCORE_ADJ_MAX) / -OOM_DISABLE;
98 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n))
104 int bus_execute_append_nice(Manager *m, DBusMessageIter *i, const char *property, void *data) {
105 ExecContext *c = data;
116 n = getpriority(PRIO_PROCESS, 0);
118 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n))
124 int bus_execute_append_ioprio(Manager *m, DBusMessageIter *i, const char *property, void *data) {
125 ExecContext *c = data;
136 n = ioprio_get(IOPRIO_WHO_PROCESS, 0);
138 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n))
144 int bus_execute_append_cpu_sched_policy(Manager *m, DBusMessageIter *i, const char *property, void *data) {
145 ExecContext *c = data;
153 if (c->cpu_sched_set)
154 n = c->cpu_sched_policy;
156 n = sched_getscheduler(0);
158 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n))
164 int bus_execute_append_cpu_sched_priority(Manager *m, DBusMessageIter *i, const char *property, void *data) {
165 ExecContext *c = data;
173 if (c->cpu_sched_set)
174 n = c->cpu_sched_priority;
176 struct sched_param p;
180 if (sched_getparam(0, &p) >= 0)
181 n = p.sched_priority;
184 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_INT32, &n))
190 int bus_execute_append_affinity(Manager *m, DBusMessageIter *i, const char *property, void *data) {
191 ExecContext *c = data;
200 if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "y", &sub))
204 b = dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus));
206 b = dbus_message_iter_append_fixed_array(&sub, DBUS_TYPE_BYTE, &c->cpuset, 0);
211 if (!dbus_message_iter_close_container(i, &sub))
217 int bus_execute_append_timer_slack_nsec(Manager *m, DBusMessageIter *i, const char *property, void *data) {
218 ExecContext *c = data;
226 if (c->timer_slack_nsec_set)
227 u = (uint64_t) c->timer_slack_nsec;
229 u = (uint64_t) prctl(PR_GET_TIMERSLACK);
231 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
237 int bus_execute_append_capability_bs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
238 ExecContext *c = data;
239 uint64_t normal, inverted;
246 /* We store this negated internally, to match the kernel, bu
247 * we expose it normalized. */
249 normal = *(uint64_t*) data;
252 return bus_property_append_uint64(m, i, property, &inverted);
255 int bus_execute_append_capabilities(Manager *m, DBusMessageIter *i, const char *property, void *data) {
256 ExecContext *c = data;
267 s = t = cap_to_text(c->capabilities, NULL);
274 b = dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &s);
285 int bus_execute_append_rlimits(Manager *m, DBusMessageIter *i, const char *property, void *data) {
286 ExecContext *c = data;
295 assert_se((r = rlimit_from_string(property)) >= 0);
298 u = (uint64_t) c->rlimit[r]->rlim_max;
305 u = (uint64_t) rl.rlim_max;
308 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
314 int bus_execute_append_command(Manager *m, DBusMessageIter *i, const char *property, void *data) {
315 ExecCommand *c = data;
316 DBusMessageIter sub, sub2, sub3;
322 if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(sasbttuii)", &sub))
325 LIST_FOREACH(command, c, c) {
328 int32_t code, status;
333 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
334 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &c->path) ||
335 !dbus_message_iter_open_container(&sub2, DBUS_TYPE_ARRAY, "s", &sub3))
338 STRV_FOREACH(l, c->argv)
339 if (!dbus_message_iter_append_basic(&sub3, DBUS_TYPE_STRING, l))
342 pid = (uint32_t) c->exec_status.pid;
343 code = (int32_t) c->exec_status.code;
344 status = (int32_t) c->exec_status.status;
346 if (!dbus_message_iter_close_container(&sub2, &sub3) ||
347 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_BOOLEAN, &c->ignore) ||
348 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT64, &c->exec_status.start_timestamp.realtime) ||
349 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT64, &c->exec_status.exit_timestamp.realtime) ||
350 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &pid) ||
351 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_INT32, &code) ||
352 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_INT32, &status))
355 if (!dbus_message_iter_close_container(&sub, &sub2))
359 if (!dbus_message_iter_close_container(i, &sub))