X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fcore%2Fdbus-manager.c;h=1b26e5556ad0973f6644e153f67de62b4addfae3;hb=4543768d13946e9193b367330cb32ded4d96058a;hp=5fe06f927d973c801733713fe02a08776ba5d097;hpb=ab31f6b8713d43354c3716ee4c37fe4460db9254;p=elogind.git diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c index 5fe06f927..1b26e5556 100644 --- a/src/core/dbus-manager.c +++ b/src/core/dbus-manager.c @@ -39,7 +39,7 @@ #include "dbus-unit.h" #include "dbus-snapshot.h" #include "dbus-execute.h" -#include "bus-errors.h" +#include "bus-common-errors.h" static int property_get_version( sd_bus *bus, @@ -359,9 +359,26 @@ static int method_get_unit(sd_bus *bus, sd_bus_message *message, void *userdata, if (r < 0) return r; - u = manager_get_unit(m, name); - if (!u) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", name); + if (isempty(name)) { + _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + pid_t pid; + + r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); + if (r < 0) + return r; + + r = sd_bus_creds_get_pid(creds, &pid); + if (r < 0) + return r; + + u = manager_get_unit_by_pid(m, pid); + if (!u) + return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Client not member of any unit."); + } else { + u = manager_get_unit(m, name); + if (!u) + return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", name); + } r = mac_selinux_unit_access_check(u, message, "status", error); if (r < 0) @@ -392,6 +409,8 @@ static int method_get_unit_by_pid(sd_bus *bus, sd_bus_message *message, void *us r = sd_bus_message_read(message, "u", &pid); if (r < 0) return r; + if (pid < 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PID " PID_FMT, pid); if (pid == 0) { _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; @@ -407,7 +426,7 @@ static int method_get_unit_by_pid(sd_bus *bus, sd_bus_message *message, void *us u = manager_get_unit_by_pid(m, pid); if (!u) - return sd_bus_error_setf(error, BUS_ERROR_NO_UNIT_FOR_PID, "PID %u does not belong to any loaded unit.", pid); + return sd_bus_error_setf(error, BUS_ERROR_NO_UNIT_FOR_PID, "PID "PID_FMT" does not belong to any loaded unit.", pid); r = mac_selinux_unit_access_check(u, message, "status", error); if (r < 0) @@ -437,9 +456,26 @@ static int method_load_unit(sd_bus *bus, sd_bus_message *message, void *userdata if (r < 0) return r; - r = manager_load_unit(m, name, NULL, error, &u); - if (r < 0) - return r; + if (isempty(name)) { + _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL; + pid_t pid; + + r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); + if (r < 0) + return r; + + r = sd_bus_creds_get_pid(creds, &pid); + if (r < 0) + return r; + + u = manager_get_unit_by_pid(m, pid); + if (!u) + return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Client not member of any unit."); + } else { + r = manager_load_unit(m, name, NULL, error, &u); + if (r < 0) + return r; + } r = mac_selinux_unit_access_check(u, message, "status", error); if (r < 0) @@ -461,12 +497,6 @@ static int method_start_unit_generic(sd_bus *bus, sd_bus_message *message, Manag assert(message); assert(m); - r = bus_verify_manage_unit_async(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -516,12 +546,6 @@ static int method_start_unit_replace(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); - r = bus_verify_manage_unit_async(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = sd_bus_message_read(message, "s", &old_name); if (r < 0) return r; @@ -543,13 +567,6 @@ static int method_kill_unit(sd_bus *bus, sd_bus_message *message, void *userdata assert(message); assert(m); - /* Like bus_verify_manage_unit_async(), but uses CAP_SYS_KILL */ - r = bus_verify_manage_unit_async_for_kill(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -571,12 +588,6 @@ static int method_reset_failed_unit(sd_bus *bus, sd_bus_message *message, void * assert(message); assert(m); - r = bus_verify_manage_unit_async(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -598,12 +609,6 @@ static int method_set_unit_properties(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); - r = bus_verify_manage_unit_async(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -670,9 +675,6 @@ static int transient_aux_units_from_message( return r; while ((r = sd_bus_message_enter_container(message, 'r', "sa(sv)")) > 0) { - if (r <= 0) - return r; - r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -681,9 +683,11 @@ static int transient_aux_units_from_message( if (r < 0 && r != -EEXIST) return r; - r = unit_load(u); - if (r < 0) - return r; + if (r != -EEXIST) { + r = unit_load(u); + if (r < 0) + return r; + } r = sd_bus_message_exit_container(message); if (r < 0) @@ -711,11 +715,9 @@ static int method_start_transient_unit(sd_bus *bus, sd_bus_message *message, voi assert(message); assert(m); - r = bus_verify_manage_unit_async(m, message, error); + r = mac_selinux_access_check(message, "start", error); if (r < 0) return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ r = sd_bus_message_read(message, "ss", &name, &smode); if (r < 0) @@ -732,9 +734,11 @@ static int method_start_transient_unit(sd_bus *bus, sd_bus_message *message, voi if (mode < 0) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s is invalid.", smode); - r = mac_selinux_access_check(message, "start", error); + r = bus_verify_manage_units_async(m, message, error); if (r < 0) return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ r = transient_unit_from_message(m, message, name, &u, error); if (r < 0) @@ -816,9 +820,15 @@ static int method_clear_jobs(sd_bus *bus, sd_bus_message *message, void *userdat assert(message); assert(m); - r = mac_selinux_access_check(message, "reboot", error); + r = mac_selinux_access_check(message, "reload", error); + if (r < 0) + return r; + + r = bus_verify_manage_units_async(m, message, error); if (r < 0) return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ manager_clear_jobs(m); @@ -837,6 +847,12 @@ static int method_reset_failed(sd_bus *bus, sd_bus_message *message, void *userd if (r < 0) return r; + r = bus_verify_manage_units_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + manager_reset_failed(m); return sd_bus_reply_method_return(message, NULL); @@ -1101,6 +1117,12 @@ static int method_create_snapshot(sd_bus *bus, sd_bus_message *message, void *us if (isempty(name)) name = NULL; + r = bus_verify_manage_units_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = snapshot_create(m, name, cleanup, error, &s); if (r < 0) return r; @@ -1122,10 +1144,6 @@ static int method_remove_snapshot(sd_bus *bus, sd_bus_message *message, void *us assert(message); assert(m); - r = mac_selinux_access_check(message, "stop", error); - if (r < 0) - return r; - r = sd_bus_message_read(message, "s", &name); if (r < 0) return r; @@ -1148,15 +1166,15 @@ static int method_reload(sd_bus *bus, sd_bus_message *message, void *userdata, s assert(message); assert(m); - r = bus_verify_reload_daemon_async(m, message, error); + r = mac_selinux_access_check(message, "reload", error); if (r < 0) return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = mac_selinux_access_check(message, "reload", error); + r = bus_verify_reload_daemon_async(m, message, error); if (r < 0) return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ /* Instead of sending the reply back right away, we just * remember that we need to and then send it after the reload @@ -1182,15 +1200,15 @@ static int method_reexecute(sd_bus *bus, sd_bus_message *message, void *userdata assert(message); assert(m); - r = bus_verify_reload_daemon_async(m, message, error); + r = mac_selinux_access_check(message, "reload", error); if (r < 0) return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = mac_selinux_access_check(message, "reload", error); + r = bus_verify_reload_daemon_async(m, message, error); if (r < 0) return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ /* We don't send a reply back here, the client should * just wait for us disconnecting. */ @@ -1239,7 +1257,6 @@ static int method_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, s return sd_bus_reply_method_return(message, NULL); } - static int method_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) { Manager *m = userdata; int r; @@ -1384,6 +1401,12 @@ static int method_set_environment(sd_bus *bus, sd_bus_message *message, void *us if (!strv_env_is_valid(plus)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment assignments"); + r = bus_verify_set_environment_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = manager_environment_add(m, NULL, plus); if (r < 0) return r; @@ -1411,6 +1434,12 @@ static int method_unset_environment(sd_bus *bus, sd_bus_message *message, void * if (!strv_env_name_or_assignment_is_valid(minus)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment variable names or assignments"); + r = bus_verify_set_environment_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = manager_environment_add(m, minus, NULL); if (r < 0) return r; @@ -1444,6 +1473,12 @@ static int method_unset_and_set_environment(sd_bus *bus, sd_bus_message *message if (!strv_env_is_valid(plus)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment assignments"); + r = bus_verify_set_environment_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + r = manager_environment_add(m, minus, plus); if (r < 0) return r; @@ -1645,12 +1680,6 @@ static int method_enable_unit_files_generic( assert(message); assert(m); - r = bus_verify_manage_unit_files_async(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; @@ -1663,6 +1692,12 @@ static int method_enable_unit_files_generic( if (r < 0) return r; + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + scope = m->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER; r = call(scope, runtime, NULL, l, force, &changes, &n_changes); @@ -1711,12 +1746,6 @@ static int method_preset_unit_files_with_mode(sd_bus *bus, sd_bus_message *messa assert(message); assert(m); - r = bus_verify_manage_unit_files_async(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; @@ -1737,6 +1766,12 @@ static int method_preset_unit_files_with_mode(sd_bus *bus, sd_bus_message *messa if (r < 0) return r; + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + scope = m->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER; r = unit_file_preset(scope, runtime, NULL, l, mm, force, &changes, &n_changes); @@ -1764,25 +1799,25 @@ static int method_disable_unit_files_generic( assert(message); assert(m); - r = bus_verify_manage_unit_files_async(m, message, error); + r = sd_bus_message_read_strv(message, &l); if (r < 0) return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = mac_selinux_access_check(message, verb, error); + r = sd_bus_message_read(message, "b", &runtime); if (r < 0) return r; - r = sd_bus_message_read_strv(message, &l); + r = mac_selinux_unit_access_check_strv(l, message, m, verb, error); if (r < 0) return r; - r = sd_bus_message_read(message, "b", &runtime); + scope = m->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER; + + r = bus_verify_manage_unit_files_async(m, message, error); if (r < 0) return r; - - scope = m->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ r = call(scope, runtime, NULL, l, &changes, &n_changes); if (r < 0) @@ -1811,19 +1846,19 @@ static int method_set_default_target(sd_bus *bus, sd_bus_message *message, void assert(message); assert(m); - r = bus_verify_manage_unit_files_async(m, message, error); + r = mac_selinux_access_check(message, "enable", error); if (r < 0) return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = mac_selinux_access_check(message, "enable", error); + r = sd_bus_message_read(message, "sb", &name, &force); if (r < 0) return r; - r = sd_bus_message_read(message, "sb", &name, &force); + r = bus_verify_manage_unit_files_async(m, message, error); if (r < 0) return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ scope = m->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER; @@ -1847,12 +1882,6 @@ static int method_preset_all_unit_files(sd_bus *bus, sd_bus_message *message, vo assert(message); assert(m); - r = bus_verify_manage_unit_files_async(m, message, error); - if (r < 0) - return r; - if (r == 0) - return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ - r = mac_selinux_access_check(message, "enable", error); if (r < 0) return r; @@ -1869,6 +1898,12 @@ static int method_preset_all_unit_files(sd_bus *bus, sd_bus_message *message, vo return -EINVAL; } + r = bus_verify_manage_unit_files_async(m, message, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */ + scope = m->running_as == SYSTEMD_SYSTEM ? UNIT_FILE_SYSTEM : UNIT_FILE_USER; r = unit_file_preset_all(scope, runtime, NULL, mm, force, &changes, &n_changes); @@ -1947,7 +1982,7 @@ const sd_bus_vtable bus_manager_vtable[] = { SD_BUS_WRITABLE_PROPERTY("LogLevel", "s", property_get_log_level, property_set_log_level, 0, 0), SD_BUS_WRITABLE_PROPERTY("LogTarget", "s", property_get_log_target, property_set_log_target, 0, 0), SD_BUS_PROPERTY("NNames", "u", property_get_n_names, 0, 0), - SD_BUS_PROPERTY("NFailedUnits", "u", property_get_n_failed_units, 0, 0), + SD_BUS_PROPERTY("NFailedUnits", "u", property_get_n_failed_units, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), SD_BUS_PROPERTY("NJobs", "u", property_get_n_jobs, 0, 0), SD_BUS_PROPERTY("NInstalledJobs", "u", bus_property_get_unsigned, offsetof(Manager, n_installed_jobs), 0), SD_BUS_PROPERTY("NFailedJobs", "u", bus_property_get_unsigned, offsetof(Manager, n_failed_jobs), 0), @@ -1980,16 +2015,16 @@ const sd_bus_vtable bus_manager_vtable[] = { SD_BUS_METHOD("StartTransientUnit", "ssa(sv)a(sa(sv))", "o", method_start_transient_unit, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetJob", "u", "o", method_get_job, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("CancelJob", "u", NULL, method_cancel_job, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ClearJobs", NULL, NULL, method_clear_jobs, 0), - SD_BUS_METHOD("ResetFailed", NULL, NULL, method_reset_failed, 0), + SD_BUS_METHOD("ClearJobs", NULL, NULL, method_clear_jobs, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("ResetFailed", NULL, NULL, method_reset_failed, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("ListUnits", NULL, "a(ssssssouso)", method_list_units, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("ListUnitsFiltered", "as", "a(ssssssouso)", method_list_units_filtered, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("ListJobs", NULL, "a(usssoo)", method_list_jobs, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Subscribe", NULL, NULL, method_subscribe, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Unsubscribe", NULL, NULL, method_unsubscribe, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Dump", NULL, "s", method_dump, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CreateSnapshot", "sb", "o", method_create_snapshot, 0), - SD_BUS_METHOD("RemoveSnapshot", "s", NULL, method_remove_snapshot, 0), + SD_BUS_METHOD("CreateSnapshot", "sb", "o", method_create_snapshot, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("RemoveSnapshot", "s", NULL, method_remove_snapshot, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Reload", NULL, NULL, method_reload, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Reexecute", NULL, NULL, method_reexecute, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("Exit", NULL, NULL, method_exit, 0), @@ -1998,9 +2033,9 @@ const sd_bus_vtable bus_manager_vtable[] = { SD_BUS_METHOD("Halt", NULL, NULL, method_halt, SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)), SD_BUS_METHOD("KExec", NULL, NULL, method_kexec, SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)), SD_BUS_METHOD("SwitchRoot", "ss", NULL, method_switch_root, SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)), - SD_BUS_METHOD("SetEnvironment", "as", NULL, method_set_environment, 0), - SD_BUS_METHOD("UnsetEnvironment", "as", NULL, method_unset_environment, 0), - SD_BUS_METHOD("UnsetAndSetEnvironment", "asas", NULL, method_unset_and_set_environment, 0), + SD_BUS_METHOD("SetEnvironment", "as", NULL, method_set_environment, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("UnsetEnvironment", "as", NULL, method_unset_environment, SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD("UnsetAndSetEnvironment", "asas", NULL, method_unset_and_set_environment, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("ListUnitFiles", NULL, "a(ss)", method_list_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("GetUnitFileState", "s", "s", method_get_unit_file_state, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD("EnableUnitFiles", "asbb", "ba(sss)", method_enable_unit_files, SD_BUS_VTABLE_UNPRIVILEGED), @@ -2100,5 +2135,23 @@ void bus_manager_send_reloading(Manager *m, bool active) { r = bus_foreach_bus(m, NULL, send_reloading, INT_TO_PTR(active)); if (r < 0) log_debug_errno(r, "Failed to send reloading signal: %m"); +} + +static int send_changed_signal(sd_bus *bus, void *userdata) { + assert(bus); + + return sd_bus_emit_properties_changed_strv(bus, + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + NULL); +} + +void bus_manager_send_change_signal(Manager *m) { + int r; + assert(m); + + r = bus_foreach_bus(m, NULL, send_changed_signal, NULL); + if (r < 0) + log_debug_errno(r, "Failed to send manager change signal: %m"); }