/* SPDX-License-Identifier: LGPL-2.1+ */ #include #include #include #if HAVE_SECCOMP #include #endif #include "af-list.h" #include "alloc-util.h" #include "bus-util.h" #include "cap-list.h" #include "capability-util.h" #include "cpu-set-util.h" #include "dbus-execute.h" #include "dbus-util.h" #include "env-util.h" #include "errno-list.h" #include "escape.h" #include "execute.h" #include "fd-util.h" #include "fileio.h" #include "hexdecoct.h" #include "io-util.h" #include "ioprio.h" #include "journal-util.h" #include "missing.h" #include "mountpoint-util.h" #include "namespace.h" #include "parse-util.h" #include "path-util.h" #include "process-util.h" #include "rlimit-util.h" #if HAVE_SECCOMP #include "seccomp-util.h" #endif #include "securebits-util.h" #include "specifier.h" #include "strv.h" #include "syslog-util.h" #include "unit-printf.h" #include "user-util.h" #include "utf8.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 BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_preserve_mode, exec_preserve_mode, ExecPreserveMode); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_protect_home, protect_home, ProtectHome); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_protect_system, protect_system, ProtectSystem); static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_personality, personality, unsigned long); static BUS_DEFINE_PROPERTY_GET(property_get_ioprio, "i", ExecContext, exec_context_get_effective_ioprio); static BUS_DEFINE_PROPERTY_GET2(property_get_ioprio_class, "i", ExecContext, exec_context_get_effective_ioprio, IOPRIO_PRIO_CLASS); static BUS_DEFINE_PROPERTY_GET2(property_get_ioprio_priority, "i", ExecContext, exec_context_get_effective_ioprio, IOPRIO_PRIO_DATA); static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_empty_string, "s", NULL); static BUS_DEFINE_PROPERTY_GET_REF(property_get_syslog_level, "i", int, LOG_PRI); static BUS_DEFINE_PROPERTY_GET_REF(property_get_syslog_facility, "i", int, LOG_FAC); 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_atoi32(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_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); return sd_bus_message_append_array(reply, 'y', c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus)); } 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_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; #if HAVE_SECCOMP Iterator i; void *id, *val; #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; #if HAVE_SECCOMP HASHMAP_FOREACH_KEY(val, id, c->syscall_filter, i) { _cleanup_free_ char *name = NULL; const char *e = NULL; char *s; int num = PTR_TO_INT(val); name = seccomp_syscall_resolve_num_arch(SCMP_ARCH_NATIVE, PTR_TO_INT(id) - 1); if (!name) continue; if (num >= 0) { e = errno_to_name(num); if (e) { s = strjoin(name, ":", e); if (!s) return -ENOMEM; } else { r = asprintf(&s, "%s:%d", name, num); if (r < 0) return -ENOMEM; } } else s = TAKE_PTR(name); r = strv_consume(&l, s); 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; #if HAVE_SECCOMP Iterator i; void *id; #endif assert(bus); assert(reply); assert(c); #if 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_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_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_stdio_fdname( 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; int fileno; assert(bus); assert(c); assert(property); assert(reply); if (streq(property, "StandardInputFileDescriptorName")) fileno = STDIN_FILENO; else if (streq(property, "StandardOutputFileDescriptorName")) fileno = STDOUT_FILENO; else { assert(streq(property, "StandardErrorFileDescriptorName")); fileno = STDERR_FILENO; } return sd_bus_message_append(reply, "s", exec_context_fdname(c, fileno)); } static int property_get_input_data( 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(c); assert(property); assert(reply); return sd_bus_message_append_array(reply, 'y', c->stdin_data, c->stdin_data_size); } static int property_get_bind_paths( 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; unsigned i; bool ro; int r; assert(bus); assert(c); assert(property); assert(reply); ro = strstr(property, "ReadOnly"); r = sd_bus_message_open_container(reply, 'a', "(ssbt)"); if (r < 0) return r; for (i = 0; i < c->n_bind_mounts; i++) { if (ro != c->bind_mounts[i].read_only) continue; r = sd_bus_message_append( reply, "(ssbt)", c->bind_mounts[i].source, c->bind_mounts[i].destination, c->bind_mounts[i].ignore_enoent, c->bind_mounts[i].recursive ? (uint64_t) MS_REC : (uint64_t) 0); if (r < 0) return r; } return sd_bus_message_close_container(reply); } static int property_get_temporary_filesystems( 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; unsigned i; int r; assert(bus); assert(c); assert(property); assert(reply); r = sd_bus_message_open_container(reply, 'a', "(ss)"); if (r < 0) return r; for (i = 0; i < c->n_temporary_filesystems; i++) { TemporaryFileSystem *t = c->temporary_filesystems + i; r = sd_bus_message_append( reply, "(ss)", t->path, t->options); if (r < 0) return r; } return sd_bus_message_close_container(reply); } static int property_get_log_extra_fields( 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; size_t i; int r; assert(bus); assert(c); assert(property); assert(reply); r = sd_bus_message_open_container(reply, 'a', "ay"); if (r < 0) return r; for (i = 0; i < c->n_log_extra_fields; i++) { r = sd_bus_message_append_array(reply, 'y', c->log_extra_fields[i].iov_base, c->log_extra_fields[i].iov_len); if (r < 0) return r; } return sd_bus_message_close_container(reply); } 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("UnsetEnvironment", "as", NULL, offsetof(ExecContext, unset_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("RootImage", "s", NULL, offsetof(ExecContext, root_image), 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("IOSchedulingClass", "i", property_get_ioprio_class, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("IOSchedulingPriority", "i", property_get_ioprio_priority, 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("StandardInputFileDescriptorName", "s", property_get_stdio_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("StandardInputData", "ay", property_get_input_data, 0, 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("StandardOutputFileDescriptorName", "s", property_get_stdio_fdname, 0, 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("StandardErrorFileDescriptorName", "s", property_get_stdio_fdname, 0, 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, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("SyslogFacility", "i", property_get_syslog_facility, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LogLevelMax", "i", bus_property_get_int, offsetof(ExecContext, log_level_max), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LogRateLimitIntervalUSec", "t", bus_property_get_usec, offsetof(ExecContext, log_rate_limit_interval_usec), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LogRateLimitBurst", "u", bus_property_get_unsigned, offsetof(ExecContext, log_rate_limit_burst), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LogExtraFields", "aay", property_get_log_extra_fields, 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", NULL, offsetof(ExecContext, capability_bounding_set), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("AmbientCapabilities", "t", NULL, offsetof(ExecContext, capability_ambient_set), 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("RemoveIPC", "b", bus_property_get_bool, offsetof(ExecContext, remove_ipc), 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("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("ProtectKernelTunables", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_tunables), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("ProtectKernelModules", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_modules), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("ProtectControlGroups", "b", bus_property_get_bool, offsetof(ExecContext, protect_control_groups), 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("PrivateMounts", "b", bus_property_get_bool, offsetof(ExecContext, private_mounts), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("ProtectHome", "s", property_get_protect_home, offsetof(ExecContext, protect_home), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("ProtectSystem", "s", 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", bus_property_get_int, offsetof(ExecContext, syscall_errno), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Personality", "s", property_get_personality, offsetof(ExecContext, personality), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LockPersonality", "b", bus_property_get_bool, offsetof(ExecContext, lock_personality), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("RestrictAddressFamilies", "(bas)", property_get_address_families, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("RuntimeDirectoryPreserve", "s", property_get_exec_preserve_mode, offsetof(ExecContext, runtime_directory_preserve_mode), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("RuntimeDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].mode), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("RuntimeDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].paths), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("StateDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].mode), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("StateDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].paths), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("CacheDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].mode), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("CacheDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].paths), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LogsDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].mode), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LogsDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].paths), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("ConfigurationDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].mode), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("ConfigurationDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].paths), 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_PROPERTY("RestrictNamespaces", "t", bus_property_get_ulong, offsetof(ExecContext, restrict_namespaces), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("BindPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("BindReadOnlyPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("TemporaryFileSystem", "a(ss)", property_get_temporary_filesystems, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("MountAPIVFS", "b", bus_property_get_bool, offsetof(ExecContext, mount_apivfs), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("KeyringMode", "s", property_get_exec_keyring_mode, offsetof(ExecContext, keyring_mode), SD_BUS_VTABLE_PROPERTY_CONST), /* Obsolete/redundant properties: */ SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), 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("IOScheduling", "i", property_get_ioprio, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), 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->flags & EXEC_COMMAND_IGNORE_FAILURE), 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_set_transient_exec_command( Unit *u, const char *name, ExecCommand **exec_command, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error) { unsigned n = 0; int r; r = sd_bus_message_enter_container(message, 'a', "(sasb)"); if (r < 0) return r; while ((r = sd_bus_message_enter_container(message, 'r', "sasb")) > 0) { _cleanup_strv_free_ char **argv = NULL; const char *path; int b; r = sd_bus_message_read(message, "s", &path); if (r < 0) return r; if (!path_is_absolute(path)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); r = sd_bus_message_read_strv(message, &argv); if (r < 0) return r; r = sd_bus_message_read(message, "b", &b); if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { ExecCommand *c; c = new0(ExecCommand, 1); if (!c) return -ENOMEM; c->path = strdup(path); if (!c->path) { free(c); return -ENOMEM; } c->argv = TAKE_PTR(argv); c->flags = b ? EXEC_COMMAND_IGNORE_FAILURE : 0; path_simplify(c->path, false); exec_command_append_list(exec_command, c); } n++; } if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *buf = NULL; _cleanup_fclose_ FILE *f = NULL; ExecCommand *c; size_t size = 0; if (n == 0) *exec_command = exec_command_free_list(*exec_command); f = open_memstream(&buf, &size); if (!f) return -ENOMEM; (void) __fsetlocking(f, FSETLOCKING_BYCALLER); fputs("ExecStart=\n", f); LIST_FOREACH(command, c, *exec_command) { _cleanup_free_ char *a = NULL, *t = NULL; const char *p; p = unit_escape_setting(c->path, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS, &t); if (!p) return -ENOMEM; a = unit_concat_strv(c->argv, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS); if (!a) return -ENOMEM; fprintf(f, "%s=%s@%s %s\n", name, c->flags & EXEC_COMMAND_IGNORE_FAILURE ? "-" : "", p, a); } r = fflush_and_check(f); if (r < 0) return r; unit_write_setting(u, flags, name, buf); } return 1; } static int parse_personality(const char *s, unsigned long *p) { unsigned long v; assert(p); v = personality_from_string(s); if (v == PERSONALITY_INVALID) return -EINVAL; *p = v; return 0; } static const char* mount_propagation_flags_to_string_with_check(unsigned long n) { if (!IN_SET(n, 0, MS_SHARED, MS_PRIVATE, MS_SLAVE)) return NULL; return mount_propagation_flags_to_string(n); } static BUS_DEFINE_SET_TRANSIENT(nsec, "t", uint64_t, nsec_t, NSEC_FMT); static BUS_DEFINE_SET_TRANSIENT_IS_VALID(log_level, "i", int32_t, int, "%" PRIi32, log_level_is_valid); #if HAVE_SECCOMP static BUS_DEFINE_SET_TRANSIENT_IS_VALID(errno, "i", int32_t, int, "%" PRIi32, errno_is_valid); #endif static BUS_DEFINE_SET_TRANSIENT_PARSE(std_input, ExecInput, exec_input_from_string); static BUS_DEFINE_SET_TRANSIENT_PARSE(std_output, ExecOutput, exec_output_from_string); static BUS_DEFINE_SET_TRANSIENT_PARSE(utmp_mode, ExecUtmpMode, exec_utmp_mode_from_string); static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_system, ProtectSystem, protect_system_from_string); static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_home, ProtectHome, protect_home_from_string); static BUS_DEFINE_SET_TRANSIENT_PARSE(keyring_mode, ExecKeyringMode, exec_keyring_mode_from_string); static BUS_DEFINE_SET_TRANSIENT_PARSE(preserve_mode, ExecPreserveMode, exec_preserve_mode_from_string); static BUS_DEFINE_SET_TRANSIENT_PARSE_PTR(personality, unsigned long, parse_personality); static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(secure_bits, "i", int32_t, int, "%" PRIi32, secure_bits_to_string_alloc_with_check); static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(capability, "t", uint64_t, uint64_t, "%" PRIu64, capability_set_to_string_alloc); static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(namespace_flag, "t", uint64_t, unsigned long, "%" PRIu64, namespace_flags_to_string); static BUS_DEFINE_SET_TRANSIENT_TO_STRING(mount_flags, "t", uint64_t, unsigned long, "%" PRIu64, mount_propagation_flags_to_string_with_check); int bus_exec_context_set_transient_property( Unit *u, ExecContext *c, const char *name, sd_bus_message *message, UnitWriteFlags flags, sd_bus_error *error) { const char *suffix; int r; assert(u); assert(c); assert(name); assert(message); flags |= UNIT_PRIVATE; if (streq(name, "User")) return bus_set_transient_user(u, name, &c->user, message, flags, error); if (streq(name, "Group")) return bus_set_transient_user(u, name, &c->group, message, flags, error); if (streq(name, "TTYPath")) return bus_set_transient_path(u, name, &c->tty_path, message, flags, error); if (streq(name, "RootImage")) return bus_set_transient_path(u, name, &c->root_image, message, flags, error); if (streq(name, "RootDirectory")) return bus_set_transient_path(u, name, &c->root_directory, message, flags, error); if (streq(name, "SyslogIdentifier")) return bus_set_transient_string(u, name, &c->syslog_identifier, message, flags, error); if (streq(name, "LogLevelMax")) return bus_set_transient_log_level(u, name, &c->log_level_max, message, flags, error); if (streq(name, "LogRateLimitIntervalUSec")) return bus_set_transient_usec(u, name, &c->log_rate_limit_interval_usec, message, flags, error); if (streq(name, "LogRateLimitBurst")) return bus_set_transient_unsigned(u, name, &c->log_rate_limit_burst, message, flags, error); if (streq(name, "Personality")) return bus_set_transient_personality(u, name, &c->personality, message, flags, error); if (streq(name, "StandardInput")) return bus_set_transient_std_input(u, name, &c->std_input, message, flags, error); if (streq(name, "StandardOutput")) return bus_set_transient_std_output(u, name, &c->std_output, message, flags, error); if (streq(name, "StandardError")) return bus_set_transient_std_output(u, name, &c->std_error, message, flags, error); if (streq(name, "IgnoreSIGPIPE")) return bus_set_transient_bool(u, name, &c->ignore_sigpipe, message, flags, error); if (streq(name, "TTYVHangup")) return bus_set_transient_bool(u, name, &c->tty_vhangup, message, flags, error); if (streq(name, "TTYReset")) return bus_set_transient_bool(u, name, &c->tty_reset, message, flags, error); if (streq(name, "TTYVTDisallocate")) return bus_set_transient_bool(u, name, &c->tty_vt_disallocate, message, flags, error); if (streq(name, "PrivateTmp")) return bus_set_transient_bool(u, name, &c->private_tmp, message, flags, error); if (streq(name, "PrivateDevices")) return bus_set_transient_bool(u, name, &c->private_devices, message, flags, error); if (streq(name, "PrivateMounts")) return bus_set_transient_bool(u, name, &c->private_mounts, message, flags, error); if (streq(name, "PrivateNetwork")) return bus_set_transient_bool(u, name, &c->private_network, message, flags, error); if (streq(name, "PrivateUsers")) return bus_set_transient_bool(u, name, &c->private_users, message, flags, error); if (streq(name, "NoNewPrivileges")) return bus_set_transient_bool(u, name, &c->no_new_privileges, message, flags, error); if (streq(name, "SyslogLevelPrefix")) return bus_set_transient_bool(u, name, &c->syslog_level_prefix, message, flags, error); if (streq(name, "MemoryDenyWriteExecute")) return bus_set_transient_bool(u, name, &c->memory_deny_write_execute, message, flags, error); if (streq(name, "RestrictRealtime")) return bus_set_transient_bool(u, name, &c->restrict_realtime, message, flags, error); if (streq(name, "DynamicUser")) return bus_set_transient_bool(u, name, &c->dynamic_user, message, flags, error); if (streq(name, "RemoveIPC")) return bus_set_transient_bool(u, name, &c->remove_ipc, message, flags, error); if (streq(name, "ProtectKernelTunables")) return bus_set_transient_bool(u, name, &c->protect_kernel_tunables, message, flags, error); if (streq(name, "ProtectKernelModules")) return bus_set_transient_bool(u, name, &c->protect_kernel_modules, message, flags, error); if (streq(name, "ProtectControlGroups")) return bus_set_transient_bool(u, name, &c->protect_control_groups, message, flags, error); if (streq(name, "MountAPIVFS")) return bus_set_transient_bool(u, name, &c->mount_apivfs, message, flags, error); if (streq(name, "CPUSchedulingResetOnFork")) return bus_set_transient_bool(u, name, &c->cpu_sched_reset_on_fork, message, flags, error); if (streq(name, "NonBlocking")) return bus_set_transient_bool(u, name, &c->non_blocking, message, flags, error); if (streq(name, "LockPersonality")) return bus_set_transient_bool(u, name, &c->lock_personality, message, flags, error); if (streq(name, "UtmpIdentifier")) return bus_set_transient_string(u, name, &c->utmp_id, message, flags, error); if (streq(name, "UtmpMode")) return bus_set_transient_utmp_mode(u, name, &c->utmp_mode, message, flags, error); if (streq(name, "PAMName")) return bus_set_transient_string(u, name, &c->pam_name, message, flags, error); if (streq(name, "TimerSlackNSec")) return bus_set_transient_nsec(u, name, &c->timer_slack_nsec, message, flags, error); if (streq(name, "ProtectSystem")) return bus_set_transient_protect_system(u, name, &c->protect_system, message, flags, error); if (streq(name, "ProtectHome")) return bus_set_transient_protect_home(u, name, &c->protect_home, message, flags, error); if (streq(name, "KeyringMode")) return bus_set_transient_keyring_mode(u, name, &c->keyring_mode, message, flags, error); if (streq(name, "RuntimeDirectoryPreserve")) return bus_set_transient_preserve_mode(u, name, &c->runtime_directory_preserve_mode, message, flags, error); if (streq(name, "UMask")) return bus_set_transient_mode_t(u, name, &c->umask, message, flags, error); if (streq(name, "RuntimeDirectoryMode")) return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_RUNTIME].mode, message, flags, error); if (streq(name, "StateDirectoryMode")) return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_STATE].mode, message, flags, error); if (streq(name, "CacheDirectoryMode")) return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CACHE].mode, message, flags, error); if (streq(name, "LogsDirectoryMode")) return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_LOGS].mode, message, flags, error); if (streq(name, "ConfigurationDirectoryMode")) return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CONFIGURATION].mode, message, flags, error); if (streq(name, "SELinuxContext")) return bus_set_transient_string(u, name, &c->selinux_context, message, flags, error); if (streq(name, "SecureBits")) return bus_set_transient_secure_bits(u, name, &c->secure_bits, message, flags, error); if (streq(name, "CapabilityBoundingSet")) return bus_set_transient_capability(u, name, &c->capability_bounding_set, message, flags, error); if (streq(name, "AmbientCapabilities")) return bus_set_transient_capability(u, name, &c->capability_ambient_set, message, flags, error); if (streq(name, "RestrictNamespaces")) return bus_set_transient_namespace_flag(u, name, &c->restrict_namespaces, message, flags, error); if (streq(name, "MountFlags")) return bus_set_transient_mount_flags(u, name, &c->mount_flags, message, flags, error); if (streq(name, "SupplementaryGroups")) { _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 (!isempty(*p) && !valid_user_group_name_or_id(*p)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid supplementary group names"); } if (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (strv_isempty(l)) { c->supplementary_groups = strv_free(c->supplementary_groups); unit_write_settingf(u, flags, name, "%s=", name); } else { _cleanup_free_ char *joined = NULL; r = strv_extend_strv(&c->supplementary_groups, l, true); if (r < 0) return -ENOMEM; joined = strv_join(c->supplementary_groups, " "); if (!joined) return -ENOMEM; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, joined); } } return 1; } else if (streq(name, "SyslogLevel")) { int32_t 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 (!UNIT_WRITE_FLAGS_NOOP(flags)) { c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level; unit_write_settingf(u, flags, name, "SyslogLevel=%i", level); } return 1; } else if (streq(name, "SyslogFacility")) { int32_t 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 (!UNIT_WRITE_FLAGS_NOOP(flags)) { c->syslog_priority = (facility << 3) | LOG_PRI(c->syslog_priority); unit_write_settingf(u, flags, name, "SyslogFacility=%i", facility); } return 1; } else if (streq(name, "LogExtraFields")) { size_t n = 0; r = sd_bus_message_enter_container(message, 'a', "ay"); if (r < 0) return r; for (;;) { _cleanup_free_ void *copy = NULL; struct iovec *t; const char *eq; const void *p; size_t sz; /* Note that we expect a byte array for each field, instead of a string. That's because on the * lower-level journal fields can actually contain binary data and are not restricted to text, * and we should not "lose precision" in our types on the way. That said, I am pretty sure * actually encoding binary data as unit metadata is not a good idea. Hence we actually refuse * any actual binary data, and only accept UTF-8. This allows us to eventually lift this * limitation, should a good, valid usecase arise. */ r = sd_bus_message_read_array(message, 'y', &p, &sz); if (r < 0) return r; if (r == 0) break; if (memchr(p, 0, sz)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains zero byte"); eq = memchr(p, '=', sz); if (!eq) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains no '=' character"); if (!journal_field_valid(p, eq - (const char*) p, false)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field invalid"); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec)); if (!t) return -ENOMEM; c->log_extra_fields = t; } copy = malloc(sz + 1); if (!copy) return -ENOMEM; memcpy(copy, p, sz); ((uint8_t*) copy)[sz] = 0; if (!utf8_is_valid(copy)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field is not valid UTF-8"); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE(copy, sz); unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C, name, "LogExtraFields=%s", (char*) copy); copy = NULL; } n++; } r = sd_bus_message_exit_container(message); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags) && n == 0) { exec_context_free_log_extra_fields(c); unit_write_setting(u, flags, name, "LogExtraFields="); } return 1; } #if HAVE_SECCOMP if (streq(name, "SystemCallErrorNumber")) return bus_set_transient_errno(u, name, &c->syscall_errno, message, flags, error); if (streq(name, "SystemCallFilter")) { int whitelist; _cleanup_strv_free_ char **l = NULL; r = sd_bus_message_enter_container(message, 'r', "bas"); if (r < 0) return r; r = sd_bus_message_read(message, "b", &whitelist); if (r < 0) return r; r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *joined = NULL; bool invert = !whitelist; char **s; if (strv_isempty(l)) { c->syscall_whitelist = false; c->syscall_filter = hashmap_free(c->syscall_filter); unit_write_settingf(u, flags, name, "SystemCallFilter="); return 1; } if (!c->syscall_filter) { c->syscall_filter = hashmap_new(NULL); if (!c->syscall_filter) return log_oom(); c->syscall_whitelist = whitelist; if (c->syscall_whitelist) { r = seccomp_parse_syscall_filter("@default", -1, c->syscall_filter, SECCOMP_PARSE_WHITELIST | (invert ? SECCOMP_PARSE_INVERT : 0)); if (r < 0) return r; } } STRV_FOREACH(s, l) { _cleanup_free_ char *n = NULL; int e; r = parse_syscall_and_errno(*s, &n, &e); if (r < 0) return r; r = seccomp_parse_syscall_filter(n, e, c->syscall_filter, (invert ? SECCOMP_PARSE_INVERT : 0) | (c->syscall_whitelist ? SECCOMP_PARSE_WHITELIST : 0)); if (r < 0) return r; } joined = strv_join(l, " "); if (!joined) return -ENOMEM; unit_write_settingf(u, flags, name, "SystemCallFilter=%s%s", whitelist ? "" : "~", joined); } return 1; } else if (streq(name, "SystemCallArchitectures")) { _cleanup_strv_free_ char **l = NULL; r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *joined = NULL; if (strv_isempty(l)) c->syscall_archs = set_free(c->syscall_archs); else { char **s; r = set_ensure_allocated(&c->syscall_archs, NULL); if (r < 0) return r; STRV_FOREACH(s, l) { uint32_t a; r = seccomp_arch_from_string(*s, &a); if (r < 0) return r; r = set_put(c->syscall_archs, UINT32_TO_PTR(a + 1)); if (r < 0) return r; } } joined = strv_join(l, " "); if (!joined) return -ENOMEM; unit_write_settingf(u, flags, name, "%s=%s", name, joined); } return 1; } else if (streq(name, "RestrictAddressFamilies")) { int whitelist; _cleanup_strv_free_ char **l = NULL; r = sd_bus_message_enter_container(message, 'r', "bas"); if (r < 0) return r; r = sd_bus_message_read(message, "b", &whitelist); if (r < 0) return r; r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *joined = NULL; bool invert = !whitelist; char **s; if (strv_isempty(l)) { c->address_families_whitelist = false; c->address_families = set_free(c->address_families); unit_write_settingf(u, flags, name, "RestrictAddressFamilies="); return 1; } if (!c->address_families) { c->address_families = set_new(NULL); if (!c->address_families) return log_oom(); c->address_families_whitelist = whitelist; } STRV_FOREACH(s, l) { int af; af = af_from_name(*s); if (af < 0) return af; if (!invert == c->address_families_whitelist) { r = set_put(c->address_families, INT_TO_PTR(af)); if (r < 0) return r; } else (void) set_remove(c->address_families, INT_TO_PTR(af)); } joined = strv_join(l, " "); if (!joined) return -ENOMEM; unit_write_settingf(u, flags, name, "RestrictAddressFamilies=%s%s", whitelist ? "" : "~", joined); } return 1; } #endif if (streq(name, "CPUAffinity")) { const void *a; size_t n = 0; r = sd_bus_message_read_array(message, 'y', &a, &n); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (n == 0) { c->cpuset = cpu_set_mfree(c->cpuset); c->cpuset_ncpus = 0; unit_write_settingf(u, flags, name, "%s=", name); } else { _cleanup_free_ char *str = NULL; size_t allocated = 0, len = 0, i, ncpus; ncpus = CPU_SIZE_TO_NUM(n); for (i = 0; i < ncpus; i++) { _cleanup_free_ char *p = NULL; size_t add; if (!CPU_ISSET_S(i, n, (cpu_set_t*) a)) continue; r = asprintf(&p, "%zu", i); if (r < 0) return -ENOMEM; add = strlen(p); if (!GREEDY_REALLOC(str, allocated, len + add + 2)) return -ENOMEM; strcpy(mempcpy(str + len, p, add), " "); len += add + 1; } if (len != 0) str[len - 1] = '\0'; if (!c->cpuset || c->cpuset_ncpus < ncpus) { cpu_set_t *cpuset; cpuset = CPU_ALLOC(ncpus); if (!cpuset) return -ENOMEM; CPU_ZERO_S(n, cpuset); if (c->cpuset) { CPU_OR_S(CPU_ALLOC_SIZE(c->cpuset_ncpus), cpuset, c->cpuset, (cpu_set_t*) a); CPU_FREE(c->cpuset); } else CPU_OR_S(n, cpuset, cpuset, (cpu_set_t*) a); c->cpuset = cpuset; c->cpuset_ncpus = ncpus; } else CPU_OR_S(n, c->cpuset, c->cpuset, (cpu_set_t*) a); unit_write_settingf(u, flags, name, "%s=%s", name, str); } } return 1; } else if (streq(name, "Nice")) { int32_t q; r = sd_bus_message_read(message, "i", &q); if (r < 0) return r; if (!nice_is_valid(q)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid Nice value: %i", q); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { c->nice = q; c->nice_set = true; unit_write_settingf(u, flags, name, "Nice=%i", q); } return 1; } else if (streq(name, "CPUSchedulingPolicy")) { int32_t q; r = sd_bus_message_read(message, "i", &q); if (r < 0) return r; if (!sched_policy_is_valid(q)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling policy: %i", q); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *s = NULL; r = sched_policy_to_string_alloc(q, &s); if (r < 0) return r; c->cpu_sched_policy = q; c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(q), sched_get_priority_max(q)); c->cpu_sched_set = true; unit_write_settingf(u, flags, name, "CPUSchedulingPolicy=%s", s); } return 1; } else if (streq(name, "CPUSchedulingPriority")) { int32_t p, min, max; r = sd_bus_message_read(message, "i", &p); if (r < 0) return r; min = sched_get_priority_min(c->cpu_sched_policy); max = sched_get_priority_max(c->cpu_sched_policy); if (p < min || p > max) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling priority: %i", p); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { c->cpu_sched_priority = p; c->cpu_sched_set = true; unit_write_settingf(u, flags, name, "CPUSchedulingPriority=%i", p); } return 1; } else if (streq(name, "IOSchedulingClass")) { int32_t q; r = sd_bus_message_read(message, "i", &q); if (r < 0) return r; if (!ioprio_class_is_valid(q)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling class: %i", q); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *s = NULL; r = ioprio_class_to_string_alloc(q, &s); if (r < 0) return r; c->ioprio = IOPRIO_PRIO_VALUE(q, IOPRIO_PRIO_DATA(c->ioprio)); c->ioprio_set = true; unit_write_settingf(u, flags, name, "IOSchedulingClass=%s", s); } return 1; } else if (streq(name, "IOSchedulingPriority")) { int32_t p; r = sd_bus_message_read(message, "i", &p); if (r < 0) return r; if (!ioprio_priority_is_valid(p)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling priority: %i", p); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), p); c->ioprio_set = true; unit_write_settingf(u, flags, name, "IOSchedulingPriority=%i", p); } 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 (!isempty(s) && !streq(s, "~") && !path_is_absolute(s)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'"); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (streq(s, "~")) { c->working_directory = mfree(c->working_directory); c->working_directory_home = true; } else { r = free_and_strdup(&c->working_directory, empty_to_null(s)); if (r < 0) return r; c->working_directory_home = false; } c->working_directory_missing_ok = missing_ok; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "WorkingDirectory=%s%s", missing_ok ? "-" : "", s); } return 1; } else if (STR_IN_SET(name, "StandardInputFileDescriptorName", "StandardOutputFileDescriptorName", "StandardErrorFileDescriptorName")) { const char *s; r = sd_bus_message_read(message, "s", &s); if (r < 0) return r; if (!isempty(s) && !fdname_is_valid(s)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid file descriptor name"); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (streq(name, "StandardInputFileDescriptorName")) { r = free_and_strdup(c->stdio_fdname + STDIN_FILENO, empty_to_null(s)); if (r < 0) return r; c->std_input = EXEC_INPUT_NAMED_FD; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=fd:%s", exec_context_fdname(c, STDIN_FILENO)); } else if (streq(name, "StandardOutputFileDescriptorName")) { r = free_and_strdup(c->stdio_fdname + STDOUT_FILENO, empty_to_null(s)); if (r < 0) return r; c->std_output = EXEC_OUTPUT_NAMED_FD; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=fd:%s", exec_context_fdname(c, STDOUT_FILENO)); } else { assert(streq(name, "StandardErrorFileDescriptorName")); r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], empty_to_null(s)); if (r < 0) return r; c->std_error = EXEC_OUTPUT_NAMED_FD; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=fd:%s", exec_context_fdname(c, STDERR_FILENO)); } } return 1; } else if (STR_IN_SET(name, "StandardInputFile", "StandardOutputFile", "StandardOutputFileToAppend", "StandardErrorFile", "StandardErrorFileToAppend")) { const char *s; r = sd_bus_message_read(message, "s", &s); if (r < 0) return r; if (!isempty(s)) { if (!path_is_absolute(s)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute", s); if (!path_is_normalized(s)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", s); } if (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (streq(name, "StandardInputFile")) { r = free_and_strdup(&c->stdio_file[STDIN_FILENO], empty_to_null(s)); if (r < 0) return r; c->std_input = EXEC_INPUT_FILE; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=file:%s", s); } else if (STR_IN_SET(name, "StandardOutputFile", "StandardOutputFileToAppend")) { r = free_and_strdup(&c->stdio_file[STDOUT_FILENO], empty_to_null(s)); if (r < 0) return r; if (streq(name, "StandardOutputFile")) { c->std_output = EXEC_OUTPUT_FILE; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=file:%s", s); } else { assert(streq(name, "StandardOutputFileToAppend")); c->std_output = EXEC_OUTPUT_FILE_APPEND; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=append:%s", s); } } else { assert(STR_IN_SET(name, "StandardErrorFile", "StandardErrorFileToAppend")); r = free_and_strdup(&c->stdio_file[STDERR_FILENO], empty_to_null(s)); if (r < 0) return r; if (streq(name, "StandardErrorFile")) { c->std_error = EXEC_OUTPUT_FILE; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=file:%s", s); } else { assert(streq(name, "StandardErrorFileToAppend")); c->std_error = EXEC_OUTPUT_FILE_APPEND; unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=append:%s", s); } } } return 1; } else if (streq(name, "StandardInputData")) { const void *p; size_t sz; r = sd_bus_message_read_array(message, 'y', &p, &sz); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *encoded = NULL; if (sz == 0) { c->stdin_data = mfree(c->stdin_data); c->stdin_data_size = 0; unit_write_settingf(u, flags, name, "StandardInputData="); } else { void *q; ssize_t n; if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */ c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX) return -E2BIG; n = base64mem(p, sz, &encoded); if (n < 0) return (int) n; q = realloc(c->stdin_data, c->stdin_data_size + sz); if (!q) return -ENOMEM; memcpy((uint8_t*) q + c->stdin_data_size, p, sz); c->stdin_data = q; c->stdin_data_size += sz; unit_write_settingf(u, flags, name, "StandardInputData=%s", encoded); } } 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 (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (strv_isempty(l)) { c->environment = strv_free(c->environment); unit_write_setting(u, flags, name, "Environment="); } else { _cleanup_free_ char *joined = NULL; char **e; joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C); if (!joined) return -ENOMEM; e = strv_env_merge(2, c->environment, l); if (!e) return -ENOMEM; strv_free_and_replace(c->environment, e); unit_write_settingf(u, flags, name, "Environment=%s", joined); } } return 1; } else if (streq(name, "UnsetEnvironment")) { _cleanup_strv_free_ char **l = NULL; r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; if (!strv_env_name_or_assignment_is_valid(l)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UnsetEnvironment= list."); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (strv_isempty(l)) { c->unset_environment = strv_free(c->unset_environment); unit_write_setting(u, flags, name, "UnsetEnvironment="); } else { _cleanup_free_ char *joined = NULL; char **e; joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C); if (!joined) return -ENOMEM; e = strv_env_merge(2, c->unset_environment, l); if (!e) return -ENOMEM; strv_free_and_replace(c->unset_environment, e); unit_write_settingf(u, flags, name, "UnsetEnvironment=%s", joined); } } 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 (!UNIT_WRITE_FLAGS_NOOP(flags)) { c->oom_score_adjust = oa; c->oom_score_adjust_set = true; unit_write_settingf(u, flags, name, "OOMScoreAdjust=%i", oa); } return 1; } else if (streq(name, "EnvironmentFiles")) { _cleanup_free_ char *joined = NULL; _cleanup_fclose_ FILE *f = NULL; _cleanup_strv_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; (void) __fsetlocking(f, FSETLOCKING_BYCALLER); fputs("EnvironmentFile=\n", f); STRV_FOREACH(i, c->environment_files) { _cleanup_free_ char *q = NULL; q = specifier_escape(*i); if (!q) return -ENOMEM; fprintf(f, "EnvironmentFile=%s\n", q); } 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 (!path_is_absolute(path)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { _cleanup_free_ char *q = NULL; char *buf; buf = strjoin(b ? "-" : "", path); if (!buf) return -ENOMEM; q = specifier_escape(buf); if (!q) { free(buf); return -ENOMEM; } fprintf(f, "EnvironmentFile=%s\n", q); 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 (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (strv_isempty(l)) { c->environment_files = strv_free(c->environment_files); unit_write_setting(u, flags, name, "EnvironmentFile="); } else { r = strv_extend_strv(&c->environment_files, l, true); if (r < 0) return r; unit_write_setting(u, flags, 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 (!UNIT_WRITE_FLAGS_NOOP(flags)) { if (strv_isempty(l)) { c->pass_environment = strv_free(c->pass_environment); unit_write_setting(u, flags, name, "PassEnvironment="); } else { _cleanup_free_ char *joined = NULL; r = strv_extend_strv(&c->pass_environment, l, true); if (r < 0) return r; /* We write just the new settings out to file, with unresolved specifiers. */ joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS); if (!joined) return -ENOMEM; unit_write_settingf(u, flags, 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) { char *i = *p; size_t offset; offset = i[0] == '-'; offset += i[offset] == '+'; if (!path_is_absolute(i + offset)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name); path_simplify(i + offset, false); } if (!UNIT_WRITE_FLAGS_NOOP(flags)) { 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_isempty(l)) { *dirs = strv_free(*dirs); unit_write_settingf(u, flags, name, "%s=", name); } else { _cleanup_free_ char *joined = NULL; joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS); if (!joined) return -ENOMEM; r = strv_extend_strv(dirs, l, true); if (r < 0) return -ENOMEM; unit_write_settingf(u, flags, name, "%s=%s", name, joined); } } return 1; } else if (STR_IN_SET(name, "RuntimeDirectory", "StateDirectory", "CacheDirectory", "LogsDirectory", "ConfigurationDirectory")) { _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 (!path_is_normalized(*p)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is not normalized: %s", name, *p); if (path_is_absolute(*p)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is absolute: %s", name, *p); if (path_startswith(*p, "private")) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path can't be 'private': %s", name, *p); } if (!UNIT_WRITE_FLAGS_NOOP(flags)) { char ***dirs = NULL; ExecDirectoryType i; for (i = 0; i < _EXEC_DIRECTORY_TYPE_MAX; i++) if (streq(name, exec_directory_type_to_string(i))) { dirs = &c->directories[i].paths; break; } assert(dirs); if (strv_isempty(l)) { *dirs = strv_free(*dirs); unit_write_settingf(u, flags, name, "%s=", name); } else { _cleanup_free_ char *joined = NULL; r = strv_extend_strv(dirs, l, true); if (r < 0) return -ENOMEM; joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS); if (!joined) return -ENOMEM; unit_write_settingf(u, flags, name, "%s=%s", name, joined); } } return 1; } else if (STR_IN_SET(name, "AppArmorProfile", "SmackProcessLabel")) { int ignore; const char *s; r = sd_bus_message_read(message, "(bs)", &ignore, &s); if (r < 0) return r; if (!UNIT_WRITE_FLAGS_NOOP(flags)) { char **p; bool *b; if (streq(name, "AppArmorProfile")) { p = &c->apparmor_profile; b = &c->apparmor_profile_ignore; } else { /* "SmackProcessLabel" */ p = &c->smack_process_label; b = &c->smack_process_label_ignore; } if (isempty(s)) { *p = mfree(*p); *b = false; } else { if (free_and_strdup(p, s) < 0) return -ENOMEM; *b = ignore; } unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s%s", name, ignore ? "-" : "", strempty(s)); } return 1; } else if (STR_IN_SET(name, "BindPaths", "BindReadOnlyPaths")) { const char *source, *destination; int ignore_enoent; uint64_t mount_flags; bool empty = true; r = sd_bus_message_enter_container(message, 'a', "(ssbt)"); if (r < 0) return r; while ((r = sd_bus_message_read(message, "(ssbt)", &source, &destination, &ignore_enoent, &mount_flags)) > 0) { if (!path_is_absolute(source)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path %s is not absolute.", source); if (!path_is_absolute(destination)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path %s is not absolute.", destination); if (!IN_SET(mount_flags, 0, MS_REC)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mount flags."); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts, &(BindMount) { .source = strdup(source), .destination = strdup(destination), .read_only = !!strstr(name, "ReadOnly"), .recursive = !!(mount_flags & MS_REC), .ignore_enoent = ignore_enoent, }); if (r < 0) return r; unit_write_settingf( u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s%s:%s:%s", name, ignore_enoent ? "-" : "", source, destination, (mount_flags & MS_REC) ? "rbind" : "norbind"); } empty = false; } if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (empty) { bind_mount_free_many(c->bind_mounts, c->n_bind_mounts); c->bind_mounts = NULL; c->n_bind_mounts = 0; unit_write_settingf(u, flags, name, "%s=", name); } return 1; } else if (streq(name, "TemporaryFileSystem")) { const char *path, *options; bool empty = true; r = sd_bus_message_enter_container(message, 'a', "(ss)"); if (r < 0) return r; while ((r = sd_bus_message_read(message, "(ss)", &path, &options)) > 0) { if (!path_is_absolute(path)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Mount point %s is not absolute.", path); if (!UNIT_WRITE_FLAGS_NOOP(flags)) { r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, path, options); if (r < 0) return r; unit_write_settingf( u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s:%s", name, path, options); } empty = false; } if (r < 0) return r; r = sd_bus_message_exit_container(message); if (r < 0) return r; if (empty) { temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems); c->temporary_filesystems = NULL; c->n_temporary_filesystems = 0; unit_write_settingf(u, flags, name, "%s=", name); } return 1; } else if ((suffix = startswith(name, "Limit"))) { const char *soft = NULL; int ri; ri = rlimit_from_string(suffix); if (ri < 0) { soft = endswith(suffix, "Soft"); if (soft) { const char *n; n = strndupa(suffix, soft - suffix); ri = rlimit_from_string(n); if (ri >= 0) name = strjoina("Limit", 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 (!UNIT_WRITE_FLAGS_NOOP(flags)) { _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_settingf(u, flags, name, "%s=%s", name, f); } return 1; } } return 0; }