#include <sys/prctl.h>

#ifdef HAVE_SECCOMP

#include <seccomp.h>

#endif

#include "bus-util.h"

#include "missing.h"

#include "ioprio.h"

#include "strv.h"

#include "fileio.h"

#include "execute.h"

#include "capability.h"

#include "env-util.h"

#include "af-list.h"

#include "namespace.h"

#include "path-util.h"

#include "dbus-execute.h"

#ifdef HAVE_SECCOMP

#include "seccomp-util.h"

#endif

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 BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode);

static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_protect_home, protect_home, ProtectHome);

static BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_protect_system, protect_system, ProtectSystem);

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_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_INFINITY)

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

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;

_cleanup_cap_free_charp_ char *t = NULL;

const char *s;

assert(bus);

assert(reply);

assert(c);

if (c->capabilities)

s = t = cap_to_text(c->capabilities, NULL);

else

s = "";

if (!s)

return -ENOMEM;

return sd_bus_message_append(reply, "s", s);

}

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;

_cleanup_strv_free_ char **l = NULL;

int r;

#ifdef HAVE_SECCOMP

Iterator i;

void *id;

#endif

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->syscall_whitelist);

if (r < 0)

return r;

#ifdef HAVE_SECCOMP

SET_FOREACH(id, c->syscall_filter, i) {

char *name;

name = seccomp_syscall_resolve_num_arch(SCMP_ARCH_NATIVE, PTR_TO_INT(id) - 1);

if (!name)

continue;

r = strv_consume(&l, name);

if (r < 0)

return r;

}

#endif

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_syscall_archs(

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;

int r;

#ifdef HAVE_SECCOMP

Iterator i;

void *id;

#endif

assert(bus);

assert(reply);

assert(c);

#ifdef HAVE_SECCOMP

SET_FOREACH(id, c->syscall_archs, i) {

const char *name;

name = seccomp_arch_to_string(PTR_TO_UINT32(id) - 1);

if (!name)

continue;

r = strv_extend(&l, name);

if (r < 0)

return -ENOMEM;

}

#endif

strv_sort(l);

r = sd_bus_message_append_strv(reply, l);

if (r < 0)

return r;

return 0;

}

static int property_get_syscall_errno(

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", (int32_t) c->syscall_errno);

}

static int property_get_selinux_context(

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, "(bs)", c->selinux_context_ignore, c->selinux_context);

}

static int property_get_apparmor_profile(

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, "(bs)", c->apparmor_profile_ignore, c->apparmor_profile);

}

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);

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("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("LimitFSIZE", "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("LimitSTACK", "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("LimitRSS", "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("LimitAS", "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("LimitMEMLOCK", "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("LimitSIGPENDING", "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("LimitNICE", "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("LimitRTTIME", "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_capabilities, 0, SD_BUS_VTABLE_PROPERTY_CONST),

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("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("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_dirs), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_dirs), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_dirs), 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("PrivateNetwork", "b", bus_property_get_bool, offsetof(ExecContext, private_network), 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("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_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) {

int r;

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 (mode != UNIT_CHECK) {

if (isempty(uu)) {

c->user = mfree(c->user);

} else {

char *t;

t = strdup(uu);

if (!t)

return -ENOMEM;

free(c->user);

c->user = t;

}

unit_write_drop_in_private_format(u, mode, name, "User=%s\n", 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 (mode != UNIT_CHECK) {

if (isempty(gg)) {

c->group = mfree(c->group);

} else {

char *t;

t = strdup(gg);

if (!t)

return -ENOMEM;

free(c->group);

c->group = t;

}

unit_write_drop_in_private_format(u, mode, name, "Group=%s\n", 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 {

char *t;

t = strdup(id);

if (!t)

return -ENOMEM;

free(c->syslog_identifier);

c->syslog_identifier = t;

}

unit_write_drop_in_private_format(u, mode, name, "SyslogIdentifier=%s\n", id);

}

return 1;

} else if (streq(name, "SyslogLevel")) {

int level;

r = sd_bus_message_read(message, "i", &level);

if (r < 0)

return r;

if (mode != UNIT_CHECK) {

c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level;

unit_write_drop_in_private_format(u, mode, name, "SyslogLevel=%i\n", level);

}

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", 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\n", 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\n", 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\n", 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\n", exec_output_to_string(p));

}

return 1;

} else if (STR_IN_SET(name,

"IgnoreSIGPIPE", "TTYVHangup", "TTYReset",

"PrivateTmp", "PrivateDevices", "PrivateNetwork",

"NoNewPrivileges", "SyslogLevelPrefix")) {

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, "NoNewPrivileges"))

c->no_new_privileges = b;

else if (streq(name, "SyslogLevelPrefix"))

c->syslog_level_prefix = b;

unit_write_drop_in_private_format(u, mode, name, "%s=%s\n", 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\n", 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\n", 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\n", 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;

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\n", joined);

}

return 1;

} else if (rlimit_from_string(name) >= 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) {

int z;

z = rlimit_from_string(name);

if (!c->rlimit[z]) {

c->rlimit[z] = new(struct rlimit, 1);

if (!c->rlimit[z])

return -ENOMEM;

}

c->rlimit[z]->rlim_cur = c->rlimit[z]->rlim_max = x;

if (x == RLIM_INFINITY)

unit_write_drop_in_private_format(u, mode, name, "%s=infinity\n", name);

else

unit_write_drop_in_private_format(u, mode, name, "%s=%" PRIu64 "\n", name, rl);

}

return 1;

}

return 0;

}