X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flogin%2Flogind.c;h=0b7d9653a7621b92fc17dc2c346e29bb5e7c6ecf;hp=f84938a7fd0e935c69dd3a382d034c1d01680d25;hb=3d1092eab0f4a5c771225c78072a7b6eccb82849;hpb=338ea72012c43c5fc7fb0dfda10dc1c462d3111e diff --git a/src/login/logind.c b/src/login/logind.c index f84938a7f..0b7d9653a 100644 --- a/src/login/logind.c +++ b/src/login/logind.c @@ -33,7 +33,11 @@ #include "udev-util.h" #include "formats-util.h" #include "signal-util.h" +#include "label.h" #include "logind.h" +#include "cgroup.h" +#include "mount-setup.h" +#include "virt.h" static void manager_free(Manager *m); @@ -45,11 +49,17 @@ static Manager *manager_new(void) { if (!m) return NULL; + m->pin_cgroupfs_fd = -1; + m->console_active_fd = -1; + +/// elogind does not support autospawning of vts +#if 0 m->reserve_vt_fd = -1; m->n_autovts = 6; m->reserve_vt = 6; +#endif // 0 m->remove_ipc = true; m->inhibit_delay_max = 5 * USEC_PER_SEC; m->handle_power_key = HANDLE_POWEROFF; @@ -76,16 +86,45 @@ static Manager *manager_new(void) { m->user_units = hashmap_new(&string_hash_ops); m->session_units = hashmap_new(&string_hash_ops); - m->busnames = set_new(&string_hash_ops); + m->running_as = MANAGER_SYSTEM; + m->test_run = false; - if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->busnames || - !m->user_units || !m->session_units) + if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->user_units || !m->session_units) goto fail; m->kill_exclude_users = strv_new("root", NULL); if (!m->kill_exclude_users) goto fail; + /* If elogind should be its own controller, mount its cgroup */ + if (streq(ELOGIND_CGROUP_CONTROLLER, "name=elogind")) { + r = mount_setup(true); + if (r < 0) + goto fail; + } + + /* Make cgroups */ + r = manager_setup_cgroup(m); + if (r < 0) + goto fail; + + m->suspend_mode = NULL; + m->suspend_state = strv_new("mem", "standby", "freeze", NULL); + if (!m->suspend_state) + goto fail; + m->hibernate_mode = strv_new("platform", "shutdown", NULL); + if (!m->hibernate_mode) + goto fail; + m->hibernate_state = strv_new("disk", NULL); + if (!m->hibernate_state) + goto fail; + m->hybrid_sleep_mode = strv_new("suspend", "platform", "shutdown", NULL); + if (!m->hybrid_sleep_mode) + goto fail; + m->hybrid_sleep_state = strv_new("disk", NULL); + if (!m->hybrid_sleep_state) + goto fail; + m->udev = udev_new(); if (!m->udev) goto fail; @@ -141,8 +180,6 @@ static void manager_free(Manager *m) { hashmap_free(m->user_units); hashmap_free(m->session_units); - set_free_free(m->busnames); - sd_event_source_unref(m->idle_action_event_source); sd_event_source_unref(m->inhibit_timeout_source); sd_event_source_unref(m->scheduled_shutdown_timeout_source); @@ -158,16 +195,11 @@ static void manager_free(Manager *m) { safe_close(m->console_active_fd); - if (m->udev_seat_monitor) udev_monitor_unref(m->udev_seat_monitor); - if (m->udev_device_monitor) udev_monitor_unref(m->udev_device_monitor); - if (m->udev_vcsa_monitor) udev_monitor_unref(m->udev_vcsa_monitor); - if (m->udev_button_monitor) udev_monitor_unref(m->udev_button_monitor); - if (m->udev) udev_unref(m->udev); if (m->unlink_nologin) @@ -178,7 +210,18 @@ static void manager_free(Manager *m) { sd_bus_unref(m->bus); sd_event_unref(m->event); +/// elogind does not support autospawning of vts +#if 0 safe_close(m->reserve_vt_fd); +#endif // 0 + + /* Avoid the creation of new processes forked by the + * kernel; at this point, we will not listen to the + * signals anyway */ + if (detect_container(NULL) <= 0) + (void) cg_uninstall_release_agent(ELOGIND_CGROUP_CONTROLLER); + + manager_shutdown_cgroup(m, true); strv_free(m->kill_only_users); strv_free(m->kill_exclude_users); @@ -186,7 +229,14 @@ static void manager_free(Manager *m) { free(m->scheduled_shutdown_type); free(m->scheduled_shutdown_tty); free(m->wall_message); - free(m->action_job); + + strv_free(m->suspend_mode); + strv_free(m->suspend_state); + strv_free(m->hibernate_mode); + strv_free(m->hibernate_state); + strv_free(m->hybrid_sleep_mode); + strv_free(m->hybrid_sleep_state); + free(m); } @@ -517,6 +567,8 @@ static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t rev return 0; } +/// UNNEEDED by elogind +#if 0 static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { _cleanup_udev_device_unref_ struct udev_device *d = NULL; Manager *m = userdata; @@ -538,6 +590,7 @@ static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t reven return 0; } +#endif // 0 static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { _cleanup_udev_device_unref_ struct udev_device *d = NULL; @@ -564,6 +617,8 @@ static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents return 0; } +/// UNNEEDED by elogind +#if 0 static int manager_reserve_vt(Manager *m) { _cleanup_free_ char *p = NULL; @@ -586,6 +641,35 @@ static int manager_reserve_vt(Manager *m) { return 0; } +#endif // 0 + +static int signal_agent_released(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Manager *m = userdata; + Session *s; + const char *cgroup; + int r; + + assert(message); + assert(m); + + r = sd_bus_message_read(message, "s", &cgroup); + if (r < 0) { + bus_log_parse_error(r); + return 0; + } + + s = hashmap_get(m->sessions, cgroup); + + if (!s) { + log_warning("Session not found: %s", cgroup); + return 0; + } + + session_finalize(s); + session_free(s); + + return 0; +} static int manager_connect_bus(Manager *m) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; @@ -602,6 +686,14 @@ static int manager_connect_bus(Manager *m) { if (r < 0) return log_error_errno(r, "Failed to add manager object vtable: %m"); + /* elogind relies on signals from its release agent */ + r = sd_bus_add_match(m->bus, NULL, + "type='signal'," + "interface='org.freedesktop.elogind.Agent'," + "member='Released'," + "path='/org/freedesktop/elogind/agent'", + signal_agent_released, m); + r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/seat", "org.freedesktop.login1.Seat", seat_vtable, seat_object_find, m); if (r < 0) return log_error_errno(r, "Failed to add seat object vtable: %m"); @@ -626,17 +718,8 @@ static int manager_connect_bus(Manager *m) { if (r < 0) return log_error_errno(r, "Failed to add user enumerator: %m"); - r = sd_bus_add_match(m->bus, - NULL, - "type='signal'," - "sender='org.freedesktop.DBus'," - "interface='org.freedesktop.DBus'," - "member='NameOwnerChanged'," - "path='/org/freedesktop/DBus'", - match_name_owner_changed, m); - if (r < 0) - return log_error_errno(r, "Failed to add match for NameOwnerChanged: %m"); - +/// elogind does not support systemd as PID 1 +#if 0 r = sd_bus_add_match(m->bus, NULL, "type='signal'," @@ -646,7 +729,7 @@ static int manager_connect_bus(Manager *m) { "path='/org/freedesktop/systemd1'", match_job_removed, m); if (r < 0) - return log_error_errno(r, "Failed to add match for JobRemoved: %m"); + log_warning_errno(r, "Failed to add match for JobRemoved: %m"); r = sd_bus_add_match(m->bus, NULL, @@ -657,7 +740,7 @@ static int manager_connect_bus(Manager *m) { "path='/org/freedesktop/systemd1'", match_unit_removed, m); if (r < 0) - return log_error_errno(r, "Failed to add match for UnitRemoved: %m"); + log_warning_errno(r, "Failed to add match for UnitRemoved: %m"); r = sd_bus_add_match(m->bus, NULL, @@ -667,7 +750,7 @@ static int manager_connect_bus(Manager *m) { "member='PropertiesChanged'", match_properties_changed, m); if (r < 0) - return log_error_errno(r, "Failed to add match for PropertiesChanged: %m"); + log_warning_errno(r, "Failed to add match for PropertiesChanged: %m"); r = sd_bus_add_match(m->bus, NULL, @@ -678,7 +761,7 @@ static int manager_connect_bus(Manager *m) { "path='/org/freedesktop/systemd1'", match_reloading, m); if (r < 0) - return log_error_errno(r, "Failed to add match for Reloading: %m"); + log_warning_errno(r, "Failed to add match for Reloading: %m"); r = sd_bus_call_method( m->bus, @@ -688,10 +771,9 @@ static int manager_connect_bus(Manager *m) { "Subscribe", &error, NULL, NULL); - if (r < 0) { - log_error("Failed to enable subscription: %s", bus_error_message(&error, r)); - return r; - } + if (r < 0) + log_notice("Failed to enable subscription: %s", bus_error_message(&error, r)); +#endif // 0 r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0); if (r < 0) @@ -875,6 +957,8 @@ static int manager_connect_udev(Manager *m) { } /* Don't bother watching VCSA devices, if nobody cares */ +/// elogind does not support autospawning of vts +#if 0 if (m->n_autovts > 0 && m->console_active_fd >= 0) { m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); @@ -893,6 +977,7 @@ static int manager_connect_udev(Manager *m) { if (r < 0) return r; } +#endif // 0 return 0; } @@ -923,8 +1008,8 @@ static void manager_gc(Manager *m, bool drop_not_started) { session_get_state(session) != SESSION_CLOSING) session_stop(session, false); - /* Normally, this should make the session busy again, - * if it doesn't then let's get rid of it + /* Normally, this should make the session referenced + * again, if it doesn't then let's get rid of it * immediately */ if (!session_check_gc(session, drop_not_started)) { session_finalize(session); @@ -1072,7 +1157,10 @@ static int manager_startup(Manager *m) { manager_gc(m, false); /* Reserve the special reserved VT */ +/// elogind does not support autospawning of vts +#if 0 manager_reserve_vt(m); +#endif // 0 /* And start everything */ HASHMAP_FOREACH(seat, m->seats, i) @@ -1122,24 +1210,45 @@ static int manager_run(Manager *m) { } static int manager_parse_config_file(Manager *m) { + const char *unit = NULL, *logind_conf, *sections; + FILE *file = NULL; + bool relaxed = false, allow_include = false, warn = true; + assert(m); +/// elogind parses its own config file +#if 0 return config_parse_many("/etc/systemd/logind.conf", CONF_DIRS_NULSTR("systemd/logind.conf"), "Login\0", config_item_perf_lookup, logind_gperf_lookup, false, m); +#endif // 0 + + logind_conf = getenv("ELOGIND_CONF_FILE"); + if (!logind_conf) + logind_conf = PKGSYSCONFDIR "/logind.conf"; + sections = "Login\0Sleep\0"; + + return config_parse(unit, logind_conf, file, sections, + config_item_perf_lookup, logind_gperf_lookup, + relaxed, allow_include, warn, m); } int main(int argc, char *argv[]) { Manager *m = NULL; int r; + elogind_set_program_name(argv[0]); log_set_target(LOG_TARGET_AUTO); log_set_facility(LOG_AUTH); log_parse_environment(); log_open(); +#ifdef ENABLE_DEBUG_ELOGIND + log_set_max_level(LOG_DEBUG); +#endif // ENABLE_DEBUG_ELOGIND + umask(0022); if (argc != 1) { @@ -1153,10 +1262,21 @@ int main(int argc, char *argv[]) { * existence of /run/systemd/seats/ to determine whether * logind is available, so please always make sure this check * stays in. */ - mkdir_label("/run/systemd", 0755); - mkdir_label("/run/systemd/seats", 0755); - mkdir_label("/run/systemd/users", 0755); - mkdir_label("/run/systemd/sessions", 0755); + r = mkdir_label("/run/systemd", 0755); + if ( (r < 0) && (-EEXIST != r) ) + return log_error_errno(r, "Failed to create /run/systemd : %m"); + r = mkdir_label("/run/systemd/seats", 0755); + if ( r < 0 && (-EEXIST != r) ) + return log_error_errno(r, "Failed to create /run/systemd/seats : %m"); + r = mkdir_label("/run/systemd/users", 0755); + if ( r < 0 && (-EEXIST != r) ) + return log_error_errno(r, "Failed to create /run/systemd/users : %m"); + r = mkdir_label("/run/systemd/sessions", 0755); + if ( r < 0 && (-EEXIST != r) ) + return log_error_errno(r, "Failed to create /run/systemd/sessions : %m"); + r = mkdir_label("/run/systemd/machines", 0755); + if ( r < 0 && (-EEXIST != r) ) + return log_error_errno(r, "Failed to create /run/systemd/machines : %m"); m = manager_new(); if (!m) { @@ -1187,7 +1307,6 @@ finish: "STOPPING=1\n" "STATUS=Shutting down..."); - if (m) manager_free(m); return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;