d251207d55
This setting adds minimal user namespacing support to a service. When set the invoked processes will run in their own user namespace. Only a trivial mapping will be set up: the root user/group is mapped to root, and the user/group of the service will be mapped to itself, everything else is mapped to nobody. If this setting is used the service runs with no capabilities on the host, but configurable capabilities within the service. This setting is particularly useful in conjunction with RootDirectory= as the need to synchronize /etc/passwd and /etc/group between the host and the service OS tree is reduced, as only three UID/GIDs need to match: root, nobody and the user of the service itself. But even outside the RootDirectory= case this setting is useful to substantially reduce the attack surface of a service. Example command to test this: systemd-run -p PrivateUsers=1 -p User=foobar -t /bin/sh This runs a shell as user "foobar". When typing "ps" only processes owned by "root", by "foobar", and by "nobody" should be visible.
1569 lines
59 KiB
C
1569 lines
59 KiB
C
/***
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This file is part of systemd.
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Copyright 2010 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 <sys/prctl.h>
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#ifdef HAVE_SECCOMP
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#include <seccomp.h>
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#endif
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#include "af-list.h"
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#include "alloc-util.h"
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#include "bus-util.h"
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#include "capability-util.h"
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#include "dbus-execute.h"
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#include "env-util.h"
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#include "execute.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "ioprio.h"
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#include "missing.h"
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#include "namespace.h"
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#include "parse-util.h"
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#include "path-util.h"
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#include "process-util.h"
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#include "rlimit-util.h"
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#ifdef HAVE_SECCOMP
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#include "seccomp-util.h"
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#endif
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#include "strv.h"
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#include "syslog-util.h"
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#include "user-util.h"
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#include "utf8.h"
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BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_exec_output, exec_output, ExecOutput);
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static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_input, exec_input, ExecInput);
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static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode);
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static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_protect_home, protect_home, ProtectHome);
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static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_protect_system, protect_system, ProtectSystem);
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static int property_get_environment_files(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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char **j;
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int r;
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assert(bus);
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assert(reply);
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assert(c);
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r = sd_bus_message_open_container(reply, 'a', "(sb)");
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if (r < 0)
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return r;
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STRV_FOREACH(j, c->environment_files) {
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const char *fn = *j;
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r = sd_bus_message_append(reply, "(sb)", fn[0] == '-' ? fn + 1 : fn, fn[0] == '-');
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if (r < 0)
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return r;
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}
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return sd_bus_message_close_container(reply);
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}
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static int property_get_oom_score_adjust(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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int32_t n;
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assert(bus);
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assert(reply);
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assert(c);
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if (c->oom_score_adjust_set)
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n = c->oom_score_adjust;
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else {
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_cleanup_free_ char *t = NULL;
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n = 0;
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if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0)
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safe_atoi32(t, &n);
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}
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return sd_bus_message_append(reply, "i", n);
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}
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static int property_get_nice(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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int32_t n;
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assert(bus);
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assert(reply);
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assert(c);
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if (c->nice_set)
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n = c->nice;
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else {
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errno = 0;
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n = getpriority(PRIO_PROCESS, 0);
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if (errno > 0)
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n = 0;
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}
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return sd_bus_message_append(reply, "i", n);
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}
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static int property_get_ioprio(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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int32_t n;
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assert(bus);
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assert(reply);
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assert(c);
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if (c->ioprio_set)
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n = c->ioprio;
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else {
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n = ioprio_get(IOPRIO_WHO_PROCESS, 0);
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if (n < 0)
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n = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 4);
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}
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return sd_bus_message_append(reply, "i", n);
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}
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static int property_get_cpu_sched_policy(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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int32_t n;
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assert(bus);
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assert(reply);
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assert(c);
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if (c->cpu_sched_set)
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n = c->cpu_sched_policy;
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else {
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n = sched_getscheduler(0);
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if (n < 0)
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n = SCHED_OTHER;
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}
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return sd_bus_message_append(reply, "i", n);
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}
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static int property_get_cpu_sched_priority(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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int32_t n;
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assert(bus);
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assert(reply);
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assert(c);
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if (c->cpu_sched_set)
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n = c->cpu_sched_priority;
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else {
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struct sched_param p = {};
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if (sched_getparam(0, &p) >= 0)
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n = p.sched_priority;
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else
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n = 0;
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}
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return sd_bus_message_append(reply, "i", n);
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}
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static int property_get_cpu_affinity(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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assert(bus);
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assert(reply);
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assert(c);
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if (c->cpuset)
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return sd_bus_message_append_array(reply, 'y', c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus));
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else
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return sd_bus_message_append_array(reply, 'y', NULL, 0);
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}
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static int property_get_timer_slack_nsec(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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uint64_t u;
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assert(bus);
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assert(reply);
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assert(c);
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if (c->timer_slack_nsec != NSEC_INFINITY)
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u = (uint64_t) c->timer_slack_nsec;
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else
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u = (uint64_t) prctl(PR_GET_TIMERSLACK);
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return sd_bus_message_append(reply, "t", u);
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}
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static int property_get_capability_bounding_set(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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assert(bus);
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assert(reply);
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assert(c);
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return sd_bus_message_append(reply, "t", c->capability_bounding_set);
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}
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static int property_get_ambient_capabilities(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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assert(bus);
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assert(reply);
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assert(c);
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return sd_bus_message_append(reply, "t", c->capability_ambient_set);
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}
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static int property_get_empty_string(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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assert(bus);
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assert(reply);
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return sd_bus_message_append(reply, "s", "");
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}
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static int property_get_syscall_filter(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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_cleanup_strv_free_ char **l = NULL;
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int r;
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#ifdef HAVE_SECCOMP
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Iterator i;
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void *id;
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#endif
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assert(bus);
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assert(reply);
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assert(c);
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r = sd_bus_message_open_container(reply, 'r', "bas");
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if (r < 0)
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return r;
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r = sd_bus_message_append(reply, "b", c->syscall_whitelist);
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if (r < 0)
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return r;
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#ifdef HAVE_SECCOMP
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SET_FOREACH(id, c->syscall_filter, i) {
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char *name;
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name = seccomp_syscall_resolve_num_arch(SCMP_ARCH_NATIVE, PTR_TO_INT(id) - 1);
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if (!name)
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continue;
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r = strv_consume(&l, name);
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if (r < 0)
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return r;
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}
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#endif
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strv_sort(l);
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r = sd_bus_message_append_strv(reply, l);
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if (r < 0)
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return r;
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return sd_bus_message_close_container(reply);
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}
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static int property_get_syscall_archs(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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_cleanup_strv_free_ char **l = NULL;
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int r;
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#ifdef HAVE_SECCOMP
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Iterator i;
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void *id;
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#endif
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assert(bus);
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assert(reply);
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assert(c);
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#ifdef HAVE_SECCOMP
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SET_FOREACH(id, c->syscall_archs, i) {
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const char *name;
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name = seccomp_arch_to_string(PTR_TO_UINT32(id) - 1);
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if (!name)
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continue;
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r = strv_extend(&l, name);
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if (r < 0)
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return -ENOMEM;
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}
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#endif
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strv_sort(l);
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r = sd_bus_message_append_strv(reply, l);
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if (r < 0)
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return r;
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return 0;
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}
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static int property_get_syscall_errno(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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assert(bus);
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assert(reply);
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assert(c);
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return sd_bus_message_append(reply, "i", (int32_t) c->syscall_errno);
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}
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static int property_get_selinux_context(
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sd_bus *bus,
|
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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ExecContext *c = userdata;
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|
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assert(bus);
|
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assert(reply);
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assert(c);
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return sd_bus_message_append(reply, "(bs)", c->selinux_context_ignore, c->selinux_context);
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}
|
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|
|
static int property_get_apparmor_profile(
|
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sd_bus *bus,
|
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const char *path,
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|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
ExecContext *c = userdata;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
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|
return sd_bus_message_append(reply, "(bs)", c->apparmor_profile_ignore, c->apparmor_profile);
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}
|
|
|
|
static int property_get_smack_process_label(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
ExecContext *c = userdata;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
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|
return sd_bus_message_append(reply, "(bs)", c->smack_process_label_ignore, c->smack_process_label);
|
|
}
|
|
|
|
static int property_get_personality(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
ExecContext *c = userdata;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
return sd_bus_message_append(reply, "s", personality_to_string(c->personality));
|
|
}
|
|
|
|
static int property_get_address_families(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
ExecContext *c = userdata;
|
|
_cleanup_strv_free_ char **l = NULL;
|
|
Iterator i;
|
|
void *af;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
r = sd_bus_message_open_container(reply, 'r', "bas");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(reply, "b", c->address_families_whitelist);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
SET_FOREACH(af, c->address_families, i) {
|
|
const char *name;
|
|
|
|
name = af_to_name(PTR_TO_INT(af));
|
|
if (!name)
|
|
continue;
|
|
|
|
r = strv_extend(&l, name);
|
|
if (r < 0)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
strv_sort(l);
|
|
|
|
r = sd_bus_message_append_strv(reply, l);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return sd_bus_message_close_container(reply);
|
|
}
|
|
|
|
static int property_get_working_directory(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
ExecContext *c = userdata;
|
|
const char *wd;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->working_directory_home)
|
|
wd = "~";
|
|
else
|
|
wd = c->working_directory;
|
|
|
|
if (c->working_directory_missing_ok)
|
|
wd = strjoina("!", wd);
|
|
|
|
return sd_bus_message_append(reply, "s", wd);
|
|
}
|
|
|
|
static int property_get_syslog_level(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
ExecContext *c = userdata;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
return sd_bus_message_append(reply, "i", LOG_PRI(c->syslog_priority));
|
|
}
|
|
|
|
static int property_get_syslog_facility(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
ExecContext *c = userdata;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
return sd_bus_message_append(reply, "i", LOG_FAC(c->syslog_priority));
|
|
}
|
|
|
|
const sd_bus_vtable bus_exec_vtable[] = {
|
|
SD_BUS_VTABLE_START(0),
|
|
SD_BUS_PROPERTY("Environment", "as", NULL, offsetof(ExecContext, environment), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("EnvironmentFiles", "a(sb)", property_get_environment_files, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PassEnvironment", "as", NULL, offsetof(ExecContext, pass_environment), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("UMask", "u", bus_property_get_mode, offsetof(ExecContext, umask), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitCPU", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitCPUSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitFSIZE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitFSIZESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitDATA", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitDATASoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitSTACK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitSTACKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitCORE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitCORESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitRSS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitRSSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitNOFILE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitNOFILESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitAS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitASSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitNPROC", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitNPROCSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitMEMLOCK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitMEMLOCKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitLOCKS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitLOCKSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitSIGPENDING", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitSIGPENDINGSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitMSGQUEUE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitMSGQUEUESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitNICE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitNICESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitRTPRIO", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitRTPRIOSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitRTTIME", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("LimitRTTIMESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("WorkingDirectory", "s", property_get_working_directory, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(ExecContext, root_directory), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("OOMScoreAdjust", "i", property_get_oom_score_adjust, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Nice", "i", property_get_nice, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("IOScheduling", "i", property_get_ioprio, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("CPUSchedulingPolicy", "i", property_get_cpu_sched_policy, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("CPUSchedulingPriority", "i", property_get_cpu_sched_priority, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("CPUAffinity", "ay", property_get_cpu_affinity, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("TimerSlackNSec", "t", property_get_timer_slack_nsec, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("CPUSchedulingResetOnFork", "b", bus_property_get_bool, offsetof(ExecContext, cpu_sched_reset_on_fork), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("NonBlocking", "b", bus_property_get_bool, offsetof(ExecContext, non_blocking), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("StandardInput", "s", property_get_exec_input, offsetof(ExecContext, std_input), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("StandardOutput", "s", bus_property_get_exec_output, offsetof(ExecContext, std_output), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("StandardError", "s", bus_property_get_exec_output, offsetof(ExecContext, std_error), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("TTYPath", "s", NULL, offsetof(ExecContext, tty_path), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("TTYReset", "b", bus_property_get_bool, offsetof(ExecContext, tty_reset), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("TTYVHangup", "b", bus_property_get_bool, offsetof(ExecContext, tty_vhangup), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("TTYVTDisallocate", "b", bus_property_get_bool, offsetof(ExecContext, tty_vt_disallocate), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SyslogPriority", "i", bus_property_get_int, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SyslogIdentifier", "s", NULL, offsetof(ExecContext, syslog_identifier), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SyslogLevelPrefix", "b", bus_property_get_bool, offsetof(ExecContext, syslog_level_prefix), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SyslogLevel", "i", property_get_syslog_level, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SyslogFacility", "i", property_get_syslog_facility, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
|
|
SD_BUS_PROPERTY("SecureBits", "i", bus_property_get_int, offsetof(ExecContext, secure_bits), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("CapabilityBoundingSet", "t", property_get_capability_bounding_set, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("AmbientCapabilities", "t", property_get_ambient_capabilities, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("User", "s", NULL, offsetof(ExecContext, user), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Group", "s", NULL, offsetof(ExecContext, group), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("DynamicUser", "b", bus_property_get_bool, offsetof(ExecContext, dynamic_user), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SupplementaryGroups", "as", NULL, offsetof(ExecContext, supplementary_groups), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PAMName", "s", NULL, offsetof(ExecContext, pam_name), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("ReadWriteDirectories", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
|
|
SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
|
|
SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
|
|
SD_BUS_PROPERTY("ReadWritePaths", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("ReadOnlyPaths", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("InaccessiblePaths", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("MountFlags", "t", bus_property_get_ulong, offsetof(ExecContext, mount_flags), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PrivateTmp", "b", bus_property_get_bool, offsetof(ExecContext, private_tmp), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PrivateDevices", "b", bus_property_get_bool, offsetof(ExecContext, private_devices), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PrivateNetwork", "b", bus_property_get_bool, offsetof(ExecContext, private_network), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("PrivateUsers", "b", bus_property_get_bool, offsetof(ExecContext, private_users), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("ProtectHome", "s", bus_property_get_protect_home, offsetof(ExecContext, protect_home), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("ProtectSystem", "s", bus_property_get_protect_system, offsetof(ExecContext, protect_system), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SameProcessGroup", "b", bus_property_get_bool, offsetof(ExecContext, same_pgrp), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("UtmpIdentifier", "s", NULL, offsetof(ExecContext, utmp_id), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("UtmpMode", "s", property_get_exec_utmp_mode, offsetof(ExecContext, utmp_mode), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SELinuxContext", "(bs)", property_get_selinux_context, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("AppArmorProfile", "(bs)", property_get_apparmor_profile, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SmackProcessLabel", "(bs)", property_get_smack_process_label, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("IgnoreSIGPIPE", "b", bus_property_get_bool, offsetof(ExecContext, ignore_sigpipe), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("NoNewPrivileges", "b", bus_property_get_bool, offsetof(ExecContext, no_new_privileges), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SystemCallFilter", "(bas)", property_get_syscall_filter, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SystemCallArchitectures", "as", property_get_syscall_archs, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("SystemCallErrorNumber", "i", property_get_syscall_errno, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Personality", "s", property_get_personality, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RestrictAddressFamilies", "(bas)", property_get_address_families, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RuntimeDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, runtime_directory_mode), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RuntimeDirectory", "as", NULL, offsetof(ExecContext, runtime_directory), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("MemoryDenyWriteExecute", "b", bus_property_get_bool, offsetof(ExecContext, memory_deny_write_execute), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RestrictRealtime", "b", bus_property_get_bool, offsetof(ExecContext, restrict_realtime), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_VTABLE_END
|
|
};
|
|
|
|
static int append_exec_command(sd_bus_message *reply, ExecCommand *c) {
|
|
int r;
|
|
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (!c->path)
|
|
return 0;
|
|
|
|
r = sd_bus_message_open_container(reply, 'r', "sasbttttuii");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(reply, "s", c->path);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append_strv(reply, c->argv);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(reply, "bttttuii",
|
|
c->ignore,
|
|
c->exec_status.start_timestamp.realtime,
|
|
c->exec_status.start_timestamp.monotonic,
|
|
c->exec_status.exit_timestamp.realtime,
|
|
c->exec_status.exit_timestamp.monotonic,
|
|
(uint32_t) c->exec_status.pid,
|
|
(int32_t) c->exec_status.code,
|
|
(int32_t) c->exec_status.status);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return sd_bus_message_close_container(reply);
|
|
}
|
|
|
|
int bus_property_get_exec_command(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *ret_error) {
|
|
|
|
ExecCommand *c = (ExecCommand*) userdata;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
|
|
r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = append_exec_command(reply, c);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return sd_bus_message_close_container(reply);
|
|
}
|
|
|
|
int bus_property_get_exec_command_list(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *ret_error) {
|
|
|
|
ExecCommand *c = *(ExecCommand**) userdata;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
|
|
r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
LIST_FOREACH(command, c, c) {
|
|
r = append_exec_command(reply, c);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return sd_bus_message_close_container(reply);
|
|
}
|
|
|
|
int bus_exec_context_set_transient_property(
|
|
Unit *u,
|
|
ExecContext *c,
|
|
const char *name,
|
|
sd_bus_message *message,
|
|
UnitSetPropertiesMode mode,
|
|
sd_bus_error *error) {
|
|
|
|
const char *soft = NULL;
|
|
int r, ri;
|
|
|
|
assert(u);
|
|
assert(c);
|
|
assert(name);
|
|
assert(message);
|
|
|
|
if (streq(name, "User")) {
|
|
const char *uu;
|
|
|
|
r = sd_bus_message_read(message, "s", &uu);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!isempty(uu) && !valid_user_group_name_or_id(uu))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user name: %s", uu);
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
|
|
if (isempty(uu))
|
|
c->user = mfree(c->user);
|
|
else if (free_and_strdup(&c->user, uu) < 0)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "User=%s", uu);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "Group")) {
|
|
const char *gg;
|
|
|
|
r = sd_bus_message_read(message, "s", &gg);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!isempty(gg) && !valid_user_group_name_or_id(gg))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group name: %s", gg);
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
|
|
if (isempty(gg))
|
|
c->group = mfree(c->group);
|
|
else if (free_and_strdup(&c->group, gg) < 0)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "Group=%s", gg);
|
|
}
|
|
|
|
return 1;
|
|
} else if (streq(name, "SyslogIdentifier")) {
|
|
const char *id;
|
|
|
|
r = sd_bus_message_read(message, "s", &id);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
|
|
if (isempty(id))
|
|
c->syslog_identifier = mfree(c->syslog_identifier);
|
|
else if (free_and_strdup(&c->syslog_identifier, id) < 0)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "SyslogIdentifier=%s", id);
|
|
}
|
|
|
|
return 1;
|
|
} else if (streq(name, "SyslogLevel")) {
|
|
int level;
|
|
|
|
r = sd_bus_message_read(message, "i", &level);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!log_level_is_valid(level))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log level value out of range");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level;
|
|
unit_write_drop_in_private_format(u, mode, name, "SyslogLevel=%i", level);
|
|
}
|
|
|
|
return 1;
|
|
} else if (streq(name, "SyslogFacility")) {
|
|
int facility;
|
|
|
|
r = sd_bus_message_read(message, "i", &facility);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!log_facility_unshifted_is_valid(facility))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log facility value out of range");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->syslog_priority = (facility << 3) | LOG_PRI(c->syslog_priority);
|
|
unit_write_drop_in_private_format(u, mode, name, "SyslogFacility=%i", facility);
|
|
}
|
|
|
|
return 1;
|
|
} else if (streq(name, "Nice")) {
|
|
int n;
|
|
|
|
r = sd_bus_message_read(message, "i", &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (n < PRIO_MIN || n >= PRIO_MAX)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Nice value out of range");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->nice = n;
|
|
unit_write_drop_in_private_format(u, mode, name, "Nice=%i", n);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (STR_IN_SET(name, "TTYPath", "RootDirectory")) {
|
|
const char *s;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!path_is_absolute(s))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s takes an absolute path", name);
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (streq(name, "TTYPath"))
|
|
r = free_and_strdup(&c->tty_path, s);
|
|
else {
|
|
assert(streq(name, "RootDirectory"));
|
|
r = free_and_strdup(&c->root_directory, s);
|
|
}
|
|
if (r < 0)
|
|
return r;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, s);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "WorkingDirectory")) {
|
|
const char *s;
|
|
bool missing_ok;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (s[0] == '-') {
|
|
missing_ok = true;
|
|
s++;
|
|
} else
|
|
missing_ok = false;
|
|
|
|
if (!streq(s, "~") && !path_is_absolute(s))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (streq(s, "~")) {
|
|
c->working_directory = mfree(c->working_directory);
|
|
c->working_directory_home = true;
|
|
} else {
|
|
r = free_and_strdup(&c->working_directory, s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
c->working_directory_home = false;
|
|
}
|
|
|
|
c->working_directory_missing_ok = missing_ok;
|
|
unit_write_drop_in_private_format(u, mode, name, "WorkingDirectory=%s%s", missing_ok ? "-" : "", s);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "StandardInput")) {
|
|
const char *s;
|
|
ExecInput p;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
p = exec_input_from_string(s);
|
|
if (p < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid standard input name");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->std_input = p;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "StandardInput=%s", exec_input_to_string(p));
|
|
}
|
|
|
|
return 1;
|
|
|
|
|
|
} else if (streq(name, "StandardOutput")) {
|
|
const char *s;
|
|
ExecOutput p;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
p = exec_output_from_string(s);
|
|
if (p < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid standard output name");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->std_output = p;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "StandardOutput=%s", exec_output_to_string(p));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "StandardError")) {
|
|
const char *s;
|
|
ExecOutput p;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
p = exec_output_from_string(s);
|
|
if (p < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid standard error name");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->std_error = p;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "StandardError=%s", exec_output_to_string(p));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (STR_IN_SET(name,
|
|
"IgnoreSIGPIPE", "TTYVHangup", "TTYReset",
|
|
"PrivateTmp", "PrivateDevices", "PrivateNetwork", "PrivateUsers",
|
|
"NoNewPrivileges", "SyslogLevelPrefix", "MemoryDenyWriteExecute",
|
|
"RestrictRealtime", "DynamicUser")) {
|
|
int b;
|
|
|
|
r = sd_bus_message_read(message, "b", &b);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (streq(name, "IgnoreSIGPIPE"))
|
|
c->ignore_sigpipe = b;
|
|
else if (streq(name, "TTYVHangup"))
|
|
c->tty_vhangup = b;
|
|
else if (streq(name, "TTYReset"))
|
|
c->tty_reset = b;
|
|
else if (streq(name, "PrivateTmp"))
|
|
c->private_tmp = b;
|
|
else if (streq(name, "PrivateDevices"))
|
|
c->private_devices = b;
|
|
else if (streq(name, "PrivateNetwork"))
|
|
c->private_network = b;
|
|
else if (streq(name, "PrivateUsers"))
|
|
c->private_users = b;
|
|
else if (streq(name, "NoNewPrivileges"))
|
|
c->no_new_privileges = b;
|
|
else if (streq(name, "SyslogLevelPrefix"))
|
|
c->syslog_level_prefix = b;
|
|
else if (streq(name, "MemoryDenyWriteExecute"))
|
|
c->memory_deny_write_execute = b;
|
|
else if (streq(name, "RestrictRealtime"))
|
|
c->restrict_realtime = b;
|
|
else if (streq(name, "DynamicUser"))
|
|
c->dynamic_user = b;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, yes_no(b));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "UtmpIdentifier")) {
|
|
const char *id;
|
|
|
|
r = sd_bus_message_read(message, "s", &id);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (isempty(id))
|
|
c->utmp_id = mfree(c->utmp_id);
|
|
else if (free_and_strdup(&c->utmp_id, id) < 0)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "UtmpIdentifier=%s", strempty(id));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "UtmpMode")) {
|
|
const char *s;
|
|
ExecUtmpMode m;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
m = exec_utmp_mode_from_string(s);
|
|
if (m < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid utmp mode");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->utmp_mode = m;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "UtmpMode=%s", exec_utmp_mode_to_string(m));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "PAMName")) {
|
|
const char *n;
|
|
|
|
r = sd_bus_message_read(message, "s", &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (isempty(n))
|
|
c->pam_name = mfree(c->pam_name);
|
|
else if (free_and_strdup(&c->pam_name, n) < 0)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "PAMName=%s", strempty(n));
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "Environment")) {
|
|
|
|
_cleanup_strv_free_ char **l = NULL;
|
|
|
|
r = sd_bus_message_read_strv(message, &l);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!strv_env_is_valid(l))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment block.");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
_cleanup_free_ char *joined = NULL;
|
|
char **e;
|
|
|
|
if (strv_length(l) == 0) {
|
|
c->environment = strv_free(c->environment);
|
|
unit_write_drop_in_private_format(u, mode, name, "Environment=");
|
|
} else {
|
|
e = strv_env_merge(2, c->environment, l);
|
|
if (!e)
|
|
return -ENOMEM;
|
|
|
|
strv_free(c->environment);
|
|
c->environment = e;
|
|
|
|
joined = strv_join_quoted(c->environment);
|
|
if (!joined)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "Environment=%s", joined);
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "TimerSlackNSec")) {
|
|
|
|
nsec_t n;
|
|
|
|
r = sd_bus_message_read(message, "t", &n);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->timer_slack_nsec = n;
|
|
unit_write_drop_in_private_format(u, mode, name, "TimerSlackNSec=" NSEC_FMT, n);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "OOMScoreAdjust")) {
|
|
int oa;
|
|
|
|
r = sd_bus_message_read(message, "i", &oa);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!oom_score_adjust_is_valid(oa))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "OOM score adjust value out of range");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->oom_score_adjust = oa;
|
|
c->oom_score_adjust_set = true;
|
|
unit_write_drop_in_private_format(u, mode, name, "OOMScoreAdjust=%i", oa);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "EnvironmentFiles")) {
|
|
|
|
_cleanup_free_ char *joined = NULL;
|
|
_cleanup_fclose_ FILE *f = NULL;
|
|
_cleanup_free_ char **l = NULL;
|
|
size_t size = 0;
|
|
char **i;
|
|
|
|
r = sd_bus_message_enter_container(message, 'a', "(sb)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
f = open_memstream(&joined, &size);
|
|
if (!f)
|
|
return -ENOMEM;
|
|
|
|
STRV_FOREACH(i, c->environment_files)
|
|
fprintf(f, "EnvironmentFile=%s", *i);
|
|
|
|
while ((r = sd_bus_message_enter_container(message, 'r', "sb")) > 0) {
|
|
const char *path;
|
|
int b;
|
|
|
|
r = sd_bus_message_read(message, "sb", &path, &b);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_exit_container(message);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!isempty(path) && !path_is_absolute(path))
|
|
return sd_bus_error_set_errnof(error, EINVAL, "Path %s is not absolute.", path);
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
char *buf = NULL;
|
|
|
|
buf = strjoin(b ? "-" : "", path, NULL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
fprintf(f, "EnvironmentFile=%s", buf);
|
|
|
|
r = strv_consume(&l, buf);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
}
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_exit_container(message);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = fflush_and_check(f);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (strv_isempty(l)) {
|
|
c->environment_files = strv_free(c->environment_files);
|
|
unit_write_drop_in_private(u, mode, name, "EnvironmentFile=");
|
|
} else {
|
|
r = strv_extend_strv(&c->environment_files, l, true);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
unit_write_drop_in_private(u, mode, name, joined);
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "PassEnvironment")) {
|
|
|
|
_cleanup_strv_free_ char **l = NULL;
|
|
|
|
r = sd_bus_message_read_strv(message, &l);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!strv_env_name_is_valid(l))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PassEnvironment block.");
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (strv_isempty(l)) {
|
|
c->pass_environment = strv_free(c->pass_environment);
|
|
unit_write_drop_in_private_format(u, mode, name, "PassEnvironment=");
|
|
} else {
|
|
_cleanup_free_ char *joined = NULL;
|
|
|
|
r = strv_extend_strv(&c->pass_environment, l, true);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
joined = strv_join_quoted(c->pass_environment);
|
|
if (!joined)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "PassEnvironment=%s", joined);
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (STR_IN_SET(name, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories",
|
|
"ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) {
|
|
_cleanup_strv_free_ char **l = NULL;
|
|
char ***dirs;
|
|
char **p;
|
|
|
|
r = sd_bus_message_read_strv(message, &l);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
STRV_FOREACH(p, l) {
|
|
int offset;
|
|
if (!utf8_is_valid(*p))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
|
|
|
|
offset = **p == '-';
|
|
if (!path_is_absolute(*p + offset))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
|
|
}
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
_cleanup_free_ char *joined = NULL;
|
|
|
|
if (STR_IN_SET(name, "ReadWriteDirectories", "ReadWritePaths"))
|
|
dirs = &c->read_write_paths;
|
|
else if (STR_IN_SET(name, "ReadOnlyDirectories", "ReadOnlyPaths"))
|
|
dirs = &c->read_only_paths;
|
|
else /* "InaccessiblePaths" */
|
|
dirs = &c->inaccessible_paths;
|
|
|
|
if (strv_length(l) == 0) {
|
|
*dirs = strv_free(*dirs);
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=", name);
|
|
} else {
|
|
r = strv_extend_strv(dirs, l, true);
|
|
|
|
if (r < 0)
|
|
return -ENOMEM;
|
|
|
|
joined = strv_join_quoted(*dirs);
|
|
if (!joined)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, joined);
|
|
}
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "ProtectSystem")) {
|
|
const char *s;
|
|
ProtectSystem ps;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = parse_boolean(s);
|
|
if (r > 0)
|
|
ps = PROTECT_SYSTEM_YES;
|
|
else if (r == 0)
|
|
ps = PROTECT_SYSTEM_NO;
|
|
else {
|
|
ps = protect_system_from_string(s);
|
|
if (ps < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to parse protect system value");
|
|
}
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->protect_system = ps;
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, s);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "ProtectHome")) {
|
|
const char *s;
|
|
ProtectHome ph;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = parse_boolean(s);
|
|
if (r > 0)
|
|
ph = PROTECT_HOME_YES;
|
|
else if (r == 0)
|
|
ph = PROTECT_HOME_NO;
|
|
else {
|
|
ph = protect_home_from_string(s);
|
|
if (ph < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Failed to parse protect home value");
|
|
}
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
c->protect_home = ph;
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, s);
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "RuntimeDirectory")) {
|
|
_cleanup_strv_free_ char **l = NULL;
|
|
char **p;
|
|
|
|
r = sd_bus_message_read_strv(message, &l);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
STRV_FOREACH(p, l) {
|
|
if (!filename_is_valid(*p))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Runtime directory is not valid %s", *p);
|
|
}
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
_cleanup_free_ char *joined = NULL;
|
|
|
|
if (strv_isempty(l)) {
|
|
c->runtime_directory = strv_free(c->runtime_directory);
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=", name);
|
|
} else {
|
|
r = strv_extend_strv(&c->runtime_directory, l, true);
|
|
|
|
if (r < 0)
|
|
return -ENOMEM;
|
|
|
|
joined = strv_join_quoted(c->runtime_directory);
|
|
if (!joined)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, joined);
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
|
|
} else if (streq(name, "SELinuxContext")) {
|
|
const char *s;
|
|
|
|
r = sd_bus_message_read(message, "s", &s);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
if (isempty(s))
|
|
c->selinux_context = mfree(c->selinux_context);
|
|
else if (free_and_strdup(&c->selinux_context, s) < 0)
|
|
return -ENOMEM;
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, strempty(s));
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
ri = rlimit_from_string(name);
|
|
if (ri < 0) {
|
|
soft = endswith(name, "Soft");
|
|
if (soft) {
|
|
const char *n;
|
|
|
|
n = strndupa(name, soft - name);
|
|
ri = rlimit_from_string(n);
|
|
if (ri >= 0)
|
|
name = n;
|
|
|
|
}
|
|
}
|
|
|
|
if (ri >= 0) {
|
|
uint64_t rl;
|
|
rlim_t x;
|
|
|
|
r = sd_bus_message_read(message, "t", &rl);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (rl == (uint64_t) -1)
|
|
x = RLIM_INFINITY;
|
|
else {
|
|
x = (rlim_t) rl;
|
|
|
|
if ((uint64_t) x != rl)
|
|
return -ERANGE;
|
|
}
|
|
|
|
if (mode != UNIT_CHECK) {
|
|
_cleanup_free_ char *f = NULL;
|
|
struct rlimit nl;
|
|
|
|
if (c->rlimit[ri]) {
|
|
nl = *c->rlimit[ri];
|
|
|
|
if (soft)
|
|
nl.rlim_cur = x;
|
|
else
|
|
nl.rlim_max = x;
|
|
} else
|
|
/* When the resource limit is not initialized yet, then assign the value to both fields */
|
|
nl = (struct rlimit) {
|
|
.rlim_cur = x,
|
|
.rlim_max = x,
|
|
};
|
|
|
|
r = rlimit_format(&nl, &f);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (c->rlimit[ri])
|
|
*c->rlimit[ri] = nl;
|
|
else {
|
|
c->rlimit[ri] = newdup(struct rlimit, &nl, 1);
|
|
if (!c->rlimit[ri])
|
|
return -ENOMEM;
|
|
}
|
|
|
|
unit_write_drop_in_private_format(u, mode, name, "%s=%s", name, f);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|