/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2010 Lennart Poettering systemd is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. systemd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ #include <sys/prctl.h> #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 "dbus-execute.h" #include "capability.h" #include "env-util.h" #include "af-list.h" #include "namespace.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(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_rlimit( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { struct rlimit *rl; uint64_t u; rlim_t x; assert(bus); assert(reply); assert(userdata); rl = *(struct rlimit**) userdata; if (rl) x = rl->rlim_max; else { struct rlimit buf = {}; int z; z = rlimit_from_string(property); assert(z >= 0); getrlimit(z, &buf); x = buf.rlim_max; } /* rlim_t might have different sizes, let's map * RLIMIT_INFINITY to (uint64_t) -1, so that it is the same on * all archs */ u = x == RLIM_INFINITY ? (uint64_t) -1 : (uint64_t) x; return sd_bus_message_append(reply, "t", u); } static int property_get_oom_score_adjust( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; int32_t n; assert(bus); assert(reply); assert(c); if (c->oom_score_adjust_set) n = c->oom_score_adjust; else { _cleanup_free_ char *t = NULL; n = 0; if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0) safe_atoi(t, &n); } return sd_bus_message_append(reply, "i", n); } static int property_get_nice( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; int32_t n; assert(bus); assert(reply); assert(c); if (c->nice_set) n = c->nice; else { errno = 0; n = getpriority(PRIO_PROCESS, 0); if (errno != 0) n = 0; } return sd_bus_message_append(reply, "i", n); } static int property_get_ioprio( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; int32_t n; assert(bus); assert(reply); assert(c); if (c->ioprio_set) n = c->ioprio; else { n = ioprio_get(IOPRIO_WHO_PROCESS, 0); if (n < 0) n = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 4); } return sd_bus_message_append(reply, "i", n); } static int property_get_cpu_sched_policy( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; int32_t n; assert(bus); assert(reply); assert(c); if (c->cpu_sched_set) n = c->cpu_sched_policy; else { n = sched_getscheduler(0); if (n < 0) n = SCHED_OTHER; } return sd_bus_message_append(reply, "i", n); } static int property_get_cpu_sched_priority( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; int32_t n; assert(bus); assert(reply); assert(c); if (c->cpu_sched_set) n = c->cpu_sched_priority; else { struct sched_param p = {}; if (sched_getparam(0, &p) >= 0) n = p.sched_priority; else n = 0; } return sd_bus_message_append(reply, "i", n); } static int property_get_cpu_affinity( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; assert(bus); assert(reply); assert(c); if (c->cpuset) return sd_bus_message_append_array(reply, 'y', c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus)); else return sd_bus_message_append_array(reply, 'y', NULL, 0); } static int property_get_timer_slack_nsec( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; uint64_t u; assert(bus); assert(reply); assert(c); if (c->timer_slack_nsec != (nsec_t) -1) u = (uint64_t) c->timer_slack_nsec; else u = (uint64_t) prctl(PR_GET_TIMERSLACK); return sd_bus_message_append(reply, "t", u); } static int property_get_capability_bounding_set( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; assert(bus); assert(reply); assert(c); /* We store this negated internally, to match the kernel, but * we expose it normalized. */ return sd_bus_message_append(reply, "t", ~c->capability_bounding_set_drop); } static int property_get_capabilities( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { ExecContext *c = userdata; _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_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); } 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", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitFSIZE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitDATA", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitSTACK", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitCORE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitRSS", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitNOFILE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitAS", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitNPROC", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitMEMLOCK", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitLOCKS", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitSIGPENDING", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitMSGQUEUE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitNICE", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitRTPRIO", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LimitRTTIME", "t", property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("WorkingDirectory", "s", NULL, offsetof(ExecContext, working_directory), 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("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("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("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)) { free(c->user); c->user = NULL; } 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)) { free(c->group); c->group = NULL; } 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, "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 (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; }