485 lines
17 KiB
C
485 lines
17 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2010 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 <sys/prctl.h>
|
|
|
|
#include "bus-util.h"
|
|
#include "missing.h"
|
|
#include "ioprio.h"
|
|
#include "strv.h"
|
|
#include "syscall-list.h"
|
|
#include "fileio.h"
|
|
#include "execute.h"
|
|
#include "dbus-execute.h"
|
|
|
|
BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_exec_output, exec_output, ExecOutput);
|
|
|
|
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_input, exec_input, ExecInput);
|
|
|
|
static int property_get_environment_files(
|
|
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;
|
|
char **j;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
r = sd_bus_message_open_container(reply, 'a', "(sb)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
STRV_FOREACH(j, c->environment_files) {
|
|
const char *fn = *j;
|
|
|
|
r = sd_bus_message_append(reply, "(sb)", fn[0] == '-' ? fn + 1 : fn, fn[0] == '-');
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return sd_bus_message_close_container(reply);
|
|
}
|
|
|
|
static int property_get_rlimit(
|
|
sd_bus *bus,
|
|
const char *path,
|
|
const char *interface,
|
|
const char *property,
|
|
sd_bus_message *reply,
|
|
void *userdata,
|
|
sd_bus_error *error) {
|
|
|
|
struct rlimit *rl;
|
|
uint64_t u;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(userdata);
|
|
|
|
rl = *(struct rlimit**) userdata;
|
|
if (rl)
|
|
u = (uint64_t) rl->rlim_max;
|
|
else {
|
|
struct rlimit buf = {};
|
|
int z;
|
|
|
|
z = rlimit_from_string(property);
|
|
assert(z >= 0);
|
|
|
|
getrlimit(z, &buf);
|
|
|
|
u = (uint64_t) buf.rlim_max;
|
|
}
|
|
|
|
return sd_bus_message_append(reply, "t", u);
|
|
}
|
|
|
|
static int property_get_oom_score_adjust(
|
|
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;
|
|
int32_t n;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->oom_score_adjust_set)
|
|
n = c->oom_score_adjust;
|
|
else {
|
|
_cleanup_free_ char *t = NULL;
|
|
|
|
n = 0;
|
|
if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0)
|
|
safe_atoi(t, &n);
|
|
}
|
|
|
|
return sd_bus_message_append(reply, "i", n);
|
|
}
|
|
|
|
static int property_get_nice(
|
|
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;
|
|
int32_t n;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->nice_set)
|
|
n = c->nice;
|
|
else {
|
|
errno = 0;
|
|
n = getpriority(PRIO_PROCESS, 0);
|
|
if (errno != 0)
|
|
n = 0;
|
|
}
|
|
|
|
return sd_bus_message_append(reply, "i", n);
|
|
}
|
|
|
|
static int property_get_ioprio(
|
|
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;
|
|
int32_t n;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->ioprio_set)
|
|
n = c->ioprio;
|
|
else {
|
|
n = ioprio_get(IOPRIO_WHO_PROCESS, 0);
|
|
if (n < 0)
|
|
n = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 4);
|
|
}
|
|
|
|
return sd_bus_message_append(reply, "i", n);
|
|
}
|
|
|
|
static int property_get_cpu_sched_policy(
|
|
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;
|
|
int32_t n;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->cpu_sched_set)
|
|
n = c->cpu_sched_policy;
|
|
else {
|
|
n = sched_getscheduler(0);
|
|
if (n < 0)
|
|
n = SCHED_OTHER;
|
|
}
|
|
|
|
return sd_bus_message_append(reply, "i", n);
|
|
}
|
|
|
|
static int property_get_cpu_sched_priority(
|
|
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;
|
|
int32_t n;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->cpu_sched_set)
|
|
n = c->cpu_sched_priority;
|
|
else {
|
|
struct sched_param p = {};
|
|
|
|
if (sched_getparam(0, &p) >= 0)
|
|
n = p.sched_priority;
|
|
else
|
|
n = 0;
|
|
}
|
|
|
|
return sd_bus_message_append(reply, "i", n);
|
|
}
|
|
|
|
static int property_get_cpu_affinity(
|
|
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);
|
|
|
|
if (c->cpuset)
|
|
return sd_bus_message_append_array(reply, 'y', c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus));
|
|
else
|
|
return sd_bus_message_append_array(reply, 'y', NULL, 0);
|
|
}
|
|
|
|
static int property_get_timer_slack_nsec(
|
|
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;
|
|
uint64_t u;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->timer_slack_nsec != (nsec_t) -1)
|
|
u = (uint64_t) c->timer_slack_nsec;
|
|
else
|
|
u = (uint64_t) prctl(PR_GET_TIMERSLACK);
|
|
|
|
return sd_bus_message_append(reply, "t", u);
|
|
}
|
|
|
|
static int property_get_capability_bounding_set(
|
|
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);
|
|
|
|
/* We store this negated internally, to match the kernel, but
|
|
* we expose it normalized. */
|
|
return sd_bus_message_append(reply, "t", ~c->capability_bounding_set_drop);
|
|
}
|
|
|
|
static int property_get_capabilities(
|
|
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;
|
|
char *t = NULL;
|
|
const char *s;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(reply);
|
|
assert(c);
|
|
|
|
if (c->capabilities)
|
|
s = t = cap_to_text(c->capabilities, NULL);
|
|
else
|
|
s = "";
|
|
|
|
if (!s)
|
|
return -ENOMEM;
|
|
|
|
r = sd_bus_message_append(reply, "s", s);
|
|
|
|
if (t)
|
|
cap_free(t);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int property_get_syscall_filter(
|
|
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);
|
|
|
|
if (c->syscall_filter)
|
|
return sd_bus_message_append_array(reply, 'u', c->syscall_filter, (syscall_max() + 31) >> 4);
|
|
else
|
|
return sd_bus_message_append_array(reply, 'u', NULL, 0);
|
|
}
|
|
|
|
const sd_bus_vtable bus_exec_vtable[] = {
|
|
SD_BUS_VTABLE_START(0),
|
|
SD_BUS_PROPERTY("Environment", "as", NULL, offsetof(ExecContext, environment), 0),
|
|
SD_BUS_PROPERTY("EnvironmentFiles", "a(sb)", property_get_environment_files, 0, 0),
|
|
SD_BUS_PROPERTY("UMask", "u", bus_property_get_mode, offsetof(ExecContext, umask), 0),
|
|
SD_BUS_PROPERTY("LimitCPU", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), 0),
|
|
SD_BUS_PROPERTY("LimitFSIZE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), 0),
|
|
SD_BUS_PROPERTY("LimitDATA", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), 0),
|
|
SD_BUS_PROPERTY("LimitSTACK", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), 0),
|
|
SD_BUS_PROPERTY("LimitCORE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), 0),
|
|
SD_BUS_PROPERTY("LimitRSS", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), 0),
|
|
SD_BUS_PROPERTY("LimitNOFILE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), 0),
|
|
SD_BUS_PROPERTY("LimitAS", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), 0),
|
|
SD_BUS_PROPERTY("LimitNPROC", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), 0),
|
|
SD_BUS_PROPERTY("LimitMEMLOCK", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), 0),
|
|
SD_BUS_PROPERTY("LimitLOCKS", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), 0),
|
|
SD_BUS_PROPERTY("LimitSIGPENDING", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), 0),
|
|
SD_BUS_PROPERTY("LimitMSGQUEUE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), 0),
|
|
SD_BUS_PROPERTY("LimitNICE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), 0),
|
|
SD_BUS_PROPERTY("LimitRTPRIO", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), 0),
|
|
SD_BUS_PROPERTY("LimitRTTIME", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), 0),
|
|
SD_BUS_PROPERTY("WorkingDirectory", "s", NULL, offsetof(ExecContext, working_directory), 0),
|
|
SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(ExecContext, root_directory), 0),
|
|
SD_BUS_PROPERTY("OOMScoreAdjust", "i", property_get_oom_score_adjust, 0, 0),
|
|
SD_BUS_PROPERTY("Nice", "i", property_get_nice, 0, 0),
|
|
SD_BUS_PROPERTY("IOScheduling", "i", property_get_ioprio, 0, 0),
|
|
SD_BUS_PROPERTY("CPUSchedulingPolicy", "i", property_get_cpu_sched_policy, 0, 0),
|
|
SD_BUS_PROPERTY("CPUSchedulingPriority", "i", property_get_cpu_sched_priority, 0, 0),
|
|
SD_BUS_PROPERTY("CPUAffinity", "ay", property_get_cpu_affinity, 0, 0),
|
|
SD_BUS_PROPERTY("TimerSlackNSec", "t", property_get_timer_slack_nsec, 0, 0),
|
|
SD_BUS_PROPERTY("CPUSchedulingResetOnFork", "b", bus_property_get_bool, offsetof(ExecContext, cpu_sched_reset_on_fork), 0),
|
|
SD_BUS_PROPERTY("NonBlocking", "b", bus_property_get_bool, offsetof(ExecContext, non_blocking), 0),
|
|
SD_BUS_PROPERTY("StandardInput", "s", property_get_exec_input, offsetof(ExecContext, std_input), 0),
|
|
SD_BUS_PROPERTY("StandardOutput", "s", bus_property_get_exec_output, offsetof(ExecContext, std_output), 0),
|
|
SD_BUS_PROPERTY("StandardError", "s", bus_property_get_exec_output, offsetof(ExecContext, std_error), 0),
|
|
SD_BUS_PROPERTY("TTYPath", "s", NULL, offsetof(ExecContext, tty_path), 0),
|
|
SD_BUS_PROPERTY("TTYReset", "b", bus_property_get_bool, offsetof(ExecContext, tty_reset), 0),
|
|
SD_BUS_PROPERTY("TTYVHangup", "b", bus_property_get_bool, offsetof(ExecContext, tty_vhangup), 0),
|
|
SD_BUS_PROPERTY("TTYVTDisallocate", "b", bus_property_get_bool, offsetof(ExecContext, tty_vt_disallocate), 0),
|
|
SD_BUS_PROPERTY("SyslogPriority", "i", bus_property_get_int, offsetof(ExecContext, syslog_priority), 0),
|
|
SD_BUS_PROPERTY("SyslogIdentifier", "s", NULL, offsetof(ExecContext, syslog_identifier), 0),
|
|
SD_BUS_PROPERTY("SyslogLevelPrefix", "b", bus_property_get_bool, offsetof(ExecContext, syslog_level_prefix), 0),
|
|
SD_BUS_PROPERTY("Capabilities", "s", property_get_capabilities, 0, 0),
|
|
SD_BUS_PROPERTY("SecureBits", "i", bus_property_get_int, offsetof(ExecContext, secure_bits), 0),
|
|
SD_BUS_PROPERTY("CapabilityBoundingSet", "t", property_get_capability_bounding_set, 0, 0),
|
|
SD_BUS_PROPERTY("User", "s", NULL, offsetof(ExecContext, user), 0),
|
|
SD_BUS_PROPERTY("Group", "s", NULL, offsetof(ExecContext, group), 0),
|
|
SD_BUS_PROPERTY("SupplementaryGroups", "as", NULL, offsetof(ExecContext, supplementary_groups), 0),
|
|
SD_BUS_PROPERTY("TCPWrapName", "s", NULL, offsetof(ExecContext, tcpwrap_name), 0),
|
|
SD_BUS_PROPERTY("PAMName", "s", NULL, offsetof(ExecContext, pam_name), 0),
|
|
SD_BUS_PROPERTY("ReadWriteDirectories", "as", NULL, offsetof(ExecContext, read_write_dirs), 0),
|
|
SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_dirs), 0),
|
|
SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_dirs), 0),
|
|
SD_BUS_PROPERTY("MountFlags", "t", bus_property_get_ulong, offsetof(ExecContext, mount_flags), 0),
|
|
SD_BUS_PROPERTY("PrivateTmp", "b", bus_property_get_bool, offsetof(ExecContext, private_tmp), 0),
|
|
SD_BUS_PROPERTY("PrivateNetwork", "b", bus_property_get_bool, offsetof(ExecContext, private_network), 0),
|
|
SD_BUS_PROPERTY("SameProcessGroup", "b", bus_property_get_bool, offsetof(ExecContext, same_pgrp), 0),
|
|
SD_BUS_PROPERTY("UtmpIdentifier", "s", NULL, offsetof(ExecContext, utmp_id), 0),
|
|
SD_BUS_PROPERTY("IgnoreSIGPIPE", "b", bus_property_get_bool, offsetof(ExecContext, ignore_sigpipe), 0),
|
|
SD_BUS_PROPERTY("NoNewPrivileges", "b", bus_property_get_bool, offsetof(ExecContext, no_new_privileges), 0),
|
|
SD_BUS_PROPERTY("SystemCallFilter", "au", property_get_syscall_filter, 0, 0),
|
|
SD_BUS_VTABLE_END
|
|
};
|
|
|
|
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;
|
|
|
|
LIST_FOREACH(command, c, c) {
|
|
if (!c->path)
|
|
continue;
|
|
|
|
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;
|
|
|
|
r = sd_bus_message_close_container(reply);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return sd_bus_message_close_container(reply);
|
|
}
|