X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flogin%2Flogind.c;h=b976981006a77e8fe2ce1882269ee3e1e66326a9;hp=63e07ad9a328ad6dd72405242fe555dd3aae4877;hb=da22b4dccb157393d36cfce6656ddbd9f224f5e3;hpb=0a1beeb64207eaa88ab9236787b1cbc2f704ae14 diff --git a/src/login/logind.c b/src/login/logind.c index 63e07ad9a..b97698100 100644 --- a/src/login/logind.c +++ b/src/login/logind.c @@ -1,5 +1,3 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - /*** This file is part of systemd. @@ -20,35 +18,49 @@ ***/ #include -#include #include #include #include -#include -#include +#if 0 /// elogind needs the systems udev header +#include "libudev.h" +#else +#include +#endif // 0 #include "sd-daemon.h" -#include "strv.h" -#include "conf-parser.h" -#include "mkdir.h" -#include "bus-util.h" + +#include "alloc-util.h" #include "bus-error.h" +#include "bus-util.h" +#include "conf-parser.h" +#include "def.h" +#include "dirent-util.h" +#include "fd-util.h" +#include "formats-util.h" #include "logind.h" +#include "selinux-util.h" +#include "signal-util.h" +#include "strv.h" #include "udev-util.h" -Manager *manager_new(void) { - Manager *m; - int r; +/// additional includes elogind needs +#include "cgroup.h" // From src/core/ +#include "label.h" +#include "mount-setup.h" // From src/core +#include "musl_missing.h" - m = new0(Manager, 1); - if (!m) - return NULL; +static void manager_free(Manager *m); - m->console_active_fd = -1; - m->reserve_vt_fd = -1; +static void manager_reset_config(Manager *m) { +#ifdef ENABLE_DEBUG_ELOGIND + int dbg_cnt; +#endif // ENABLE_DEBUG_ELOGIND + +#if 0 /// elogind does not support autospawning of vts 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; @@ -56,13 +68,81 @@ Manager *manager_new(void) { m->handle_hibernate_key = HANDLE_HIBERNATE; m->handle_lid_switch = HANDLE_SUSPEND; m->handle_lid_switch_docked = HANDLE_IGNORE; + m->power_key_ignore_inhibited = false; + m->suspend_key_ignore_inhibited = false; + m->hibernate_key_ignore_inhibited = false; m->lid_switch_ignore_inhibited = true; + m->holdoff_timeout_usec = 30 * USEC_PER_SEC; + m->idle_action_usec = 30 * USEC_PER_MINUTE; m->idle_action = HANDLE_IGNORE; - m->idle_action_not_before_usec = now(CLOCK_MONOTONIC); - m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */ + m->runtime_dir_size = physical_memory_scale(10U, 100U); /* 10% */ + m->user_tasks_max = system_tasks_max_scale(33U, 100U); /* 33% */ + m->sessions_max = 8192; + m->inhibitors_max = 8192; + + m->kill_user_processes = KILL_USER_PROCESSES; + + m->kill_only_users = strv_free(m->kill_only_users); + m->kill_exclude_users = strv_free(m->kill_exclude_users); + + /* Set default Sleep config if not already set by logind.conf */ + if (!m->suspend_state) + m->suspend_state = strv_new("mem", "standby", "freeze", NULL); + if (!m->hibernate_mode) + m->hibernate_mode = strv_new("platform", "shutdown", NULL); + if (!m->hibernate_state) + m->hibernate_state = strv_new("disk", NULL); + if (!m->hybrid_sleep_mode) + m->hybrid_sleep_mode = strv_new("suspend", "platform", "shutdown", NULL); + if (!m->hybrid_sleep_state) + m->hybrid_sleep_state = strv_new("disk", NULL); + +#ifdef ENABLE_DEBUG_ELOGIND + dbg_cnt = -1; + while (m->suspend_mode && m->suspend_mode[++dbg_cnt]) + log_debug_elogind("suspend_mode[%d] = %s", + dbg_cnt, m->suspend_mode[dbg_cnt]); + dbg_cnt = -1; + while (m->suspend_state[++dbg_cnt]) + log_debug_elogind("suspend_state[%d] = %s", + dbg_cnt, m->suspend_state[dbg_cnt]); + dbg_cnt = -1; + while (m->hibernate_mode[++dbg_cnt]) + log_debug_elogind("hibernate_mode[%d] = %s", + dbg_cnt, m->hibernate_mode[dbg_cnt]); + dbg_cnt = -1; + while (m->hibernate_state[++dbg_cnt]) + log_debug_elogind("hibernate_state[%d] = %s", + dbg_cnt, m->hibernate_state[dbg_cnt]); + dbg_cnt = -1; + while (m->hybrid_sleep_mode[++dbg_cnt]) + log_debug_elogind("hybrid_sleep_mode[%d] = %s", + dbg_cnt, m->hybrid_sleep_mode[dbg_cnt]); + dbg_cnt = -1; + while (m->hybrid_sleep_state[++dbg_cnt]) + log_debug_elogind("hybrid_sleep_state[%d] = %s", + dbg_cnt, m->hybrid_sleep_state[dbg_cnt]); +#endif // ENABLE_DEBUG_ELOGIND +} + +static Manager *manager_new(void) { + Manager *m; + int r; + + m = new0(Manager, 1); + if (!m) + return NULL; + + m->pin_cgroupfs_fd = -1; + m->console_active_fd = -1; +#if 0 /// UNNEEDED by elogind + m->reserve_vt_fd = -1; +#endif // 0 + + m->idle_action_not_before_usec = now(CLOCK_MONOTONIC); m->devices = hashmap_new(&string_hash_ops); m->seats = hashmap_new(&string_hash_ops); @@ -74,16 +154,30 @@ 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->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) + /* If elogind should be its own controller, mount its cgroup */ + if (streq(SYSTEMD_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 = NULL; + m->hibernate_mode = NULL; + m->hibernate_state = NULL; + m->hybrid_sleep_mode = NULL; + m->hybrid_sleep_state = NULL; + m->udev = udev_new(); if (!m->udev) goto fail; @@ -94,6 +188,8 @@ Manager *manager_new(void) { sd_event_set_watchdog(m->event, true); + manager_reset_config(m); + return m; fail: @@ -101,7 +197,7 @@ fail: return NULL; } -void manager_free(Manager *m) { +static void manager_free(Manager *m) { Session *session; User *u; Device *d; @@ -139,9 +235,11 @@ 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); + sd_event_source_unref(m->nologin_timeout_source); + sd_event_source_unref(m->wall_message_timeout_source); sd_event_source_unref(m->console_active_event_source); sd_event_source_unref(m->udev_seat_event_source); @@ -152,29 +250,44 @@ 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); + udev_monitor_unref(m->udev_seat_monitor); + udev_monitor_unref(m->udev_device_monitor); + udev_monitor_unref(m->udev_vcsa_monitor); + udev_monitor_unref(m->udev_button_monitor); + + udev_unref(m->udev); - if (m->udev) - udev_unref(m->udev); + if (m->unlink_nologin) + (void) unlink("/run/nologin"); bus_verify_polkit_async_registry_free(m->polkit_registry); sd_bus_unref(m->bus); sd_event_unref(m->event); +#if 0 /// elogind does not support autospawning of vts safe_close(m->reserve_vt_fd); +#endif // 0 + + manager_shutdown_cgroup(m, true); strv_free(m->kill_only_users); strv_free(m->kill_exclude_users); + free(m->scheduled_shutdown_type); + free(m->scheduled_shutdown_tty); + free(m->wall_message); + + 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); + +#if 0 /// UNNEEDED by elogind free(m->action_job); +#endif // 0 free(m); } @@ -290,8 +403,7 @@ static int manager_enumerate_seats(Manager *m) { if (errno == ENOENT) return 0; - log_error("Failed to open /run/systemd/seats: %m"); - return -errno; + return log_error_errno(errno, "Failed to open /run/systemd/seats: %m"); } FOREACH_DIRENT(de, d, return -errno) { @@ -327,8 +439,7 @@ static int manager_enumerate_linger_users(Manager *m) { if (errno == ENOENT) return 0; - log_error("Failed to open /var/lib/systemd/linger/: %m"); - return -errno; + return log_error_errno(errno, "Failed to open /var/lib/systemd/linger/: %m"); } FOREACH_DIRENT(de, d, return -errno) { @@ -339,7 +450,7 @@ static int manager_enumerate_linger_users(Manager *m) { k = manager_add_user_by_name(m, de->d_name, NULL); if (k < 0) { - log_notice_errno(-k, "Couldn't add lingering user %s: %m", de->d_name); + log_notice_errno(k, "Couldn't add lingering user %s: %m", de->d_name); r = k; } } @@ -363,8 +474,7 @@ static int manager_enumerate_users(Manager *m) { if (errno == ENOENT) return 0; - log_error("Failed to open /run/systemd/users: %m"); - return -errno; + return log_error_errno(errno, "Failed to open /run/systemd/users: %m"); } FOREACH_DIRENT(de, d, return -errno) { @@ -375,7 +485,7 @@ static int manager_enumerate_users(Manager *m) { k = manager_add_user_by_name(m, de->d_name, &u); if (k < 0) { - log_error_errno(-k, "Failed to add user by file name %s: %m", de->d_name); + log_error_errno(k, "Failed to add user by file name %s: %m", de->d_name); r = k; continue; @@ -404,8 +514,7 @@ static int manager_enumerate_sessions(Manager *m) { if (errno == ENOENT) return 0; - log_error("Failed to open /run/systemd/sessions: %m"); - return -errno; + return log_error_errno(errno, "Failed to open /run/systemd/sessions: %m"); } FOREACH_DIRENT(de, d, return -errno) { @@ -423,7 +532,7 @@ static int manager_enumerate_sessions(Manager *m) { k = manager_add_session(m, de->d_name, &s); if (k < 0) { - log_error_errno(-k, "Failed to add session by file name %s: %m", de->d_name); + log_error_errno(k, "Failed to add session by file name %s: %m", de->d_name); r = k; continue; @@ -451,8 +560,7 @@ static int manager_enumerate_inhibitors(Manager *m) { if (errno == ENOENT) return 0; - log_error("Failed to open /run/systemd/inhibit: %m"); - return -errno; + return log_error_errno(errno, "Failed to open /run/systemd/inhibit: %m"); } FOREACH_DIRENT(de, d, return -errno) { @@ -464,7 +572,7 @@ static int manager_enumerate_inhibitors(Manager *m) { k = manager_add_inhibitor(m, de->d_name, &i); if (k < 0) { - log_notice_errno(-k, "Couldn't add inhibitor %s: %m", de->d_name); + log_notice_errno(k, "Couldn't add inhibitor %s: %m", de->d_name); r = k; continue; } @@ -505,6 +613,7 @@ static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t rev return 0; } +#if 0 /// UNNEEDED by elogind 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; @@ -526,6 +635,7 @@ 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; @@ -552,6 +662,7 @@ static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents return 0; } +#if 0 /// UNNEEDED by elogind static int manager_reserve_vt(Manager *m) { _cleanup_free_ char *p = NULL; @@ -568,81 +679,104 @@ static int manager_reserve_vt(Manager *m) { /* Don't complain on VT-less systems */ if (errno != ENOENT) - log_warning("Failed to pin reserved VT: %m"); + log_warning_errno(errno, "Failed to pin reserved VT: %m"); return -errno; } return 0; } +#endif // 0 + +static int signal_agent_released(sd_bus_message *message, void *userdata, sd_bus_error *error) { + _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; + Manager *m = userdata; + const char *cgroup; + Session *s; + uid_t sender_uid; + int r; + + assert(message); + assert(m); + + /* only accept org.freedesktop.systemd1.Agent from UID=0 */ + r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds); + if (r < 0) + return r; + + r = sd_bus_creds_get_euid(creds, &sender_uid); + if (r < 0 || sender_uid != 0) + return 0; + + /* parse 'cgroup-empty' notification */ + 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; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(m); assert(!m->bus); r = sd_bus_default_system(&m->bus); - if (r < 0) { - log_error_errno(-r, "Failed to connect to system bus: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to connect to system bus: %m"); r = sd_bus_add_object_vtable(m->bus, NULL, "/org/freedesktop/login1", "org.freedesktop.login1.Manager", manager_vtable, m); - if (r < 0) { - log_error_errno(-r, "Failed to add manager object vtable: %m"); - return r; - } + 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) { - log_error_errno(-r, "Failed to add seat object vtable: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add seat object vtable: %m"); r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/seat", seat_node_enumerator, m); - if (r < 0) { - log_error_errno(-r, "Failed to add seat enumerator: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add seat enumerator: %m"); r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/session", "org.freedesktop.login1.Session", session_vtable, session_object_find, m); - if (r < 0) { - log_error_errno(-r, "Failed to add session object vtable: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add session object vtable: %m"); r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/session", session_node_enumerator, m); - if (r < 0) { - log_error_errno(-r, "Failed to add session enumerator: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add session enumerator: %m"); r = sd_bus_add_fallback_vtable(m->bus, NULL, "/org/freedesktop/login1/user", "org.freedesktop.login1.User", user_vtable, user_object_find, m); - if (r < 0) { - log_error_errno(-r, "Failed to add user object vtable: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add user object vtable: %m"); r = sd_bus_add_node_enumerator(m->bus, NULL, "/org/freedesktop/login1/user", user_node_enumerator, m); - if (r < 0) { - log_error_errno(-r, "Failed to add user enumerator: %m"); - return r; - } - - 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) { - log_error_errno(-r, "Failed to add match for NameOwnerChanged: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add user enumerator: %m"); +#if 0 /// elogind does not support systemd as PID 1 r = sd_bus_add_match(m->bus, NULL, "type='signal'," @@ -651,10 +785,8 @@ static int manager_connect_bus(Manager *m) { "member='JobRemoved'," "path='/org/freedesktop/systemd1'", match_job_removed, m); - if (r < 0) { - log_error_errno(-r, "Failed to add match for JobRemoved: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add match for JobRemoved: %m"); r = sd_bus_add_match(m->bus, NULL, @@ -664,10 +796,8 @@ static int manager_connect_bus(Manager *m) { "member='UnitRemoved'," "path='/org/freedesktop/systemd1'", match_unit_removed, m); - if (r < 0) { - log_error_errno(-r, "Failed to add match for UnitRemoved: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add match for UnitRemoved: %m"); r = sd_bus_add_match(m->bus, NULL, @@ -676,10 +806,8 @@ static int manager_connect_bus(Manager *m) { "interface='org.freedesktop.DBus.Properties'," "member='PropertiesChanged'", match_properties_changed, m); - if (r < 0) { - log_error_errno(-r, "Failed to add match for PropertiesChanged: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add match for PropertiesChanged: %m"); r = sd_bus_add_match(m->bus, NULL, @@ -689,10 +817,8 @@ static int manager_connect_bus(Manager *m) { "member='Reloading'," "path='/org/freedesktop/systemd1'", match_reloading, m); - if (r < 0) { - log_error_errno(-r, "Failed to add match for Reloading: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add match for Reloading: %m"); r = sd_bus_call_method( m->bus, @@ -706,18 +832,15 @@ static int manager_connect_bus(Manager *m) { log_error("Failed to enable subscription: %s", bus_error_message(&error, r)); return r; } +#endif // 0 r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0); - if (r < 0) { - log_error_errno(-r, "Failed to register name: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to register name: %m"); - r = sd_bus_attach_event(m->bus, m->event, 0); - if (r < 0) { - log_error_errno(-r, "Failed to attach bus to event loop: %m"); - return r; - } + r = sd_bus_attach_event(m->bus, m->event, SD_EVENT_PRIORITY_NORMAL); + if (r < 0) + return log_error_errno(r, "Failed to attach bus to event loop: %m"); return 0; } @@ -783,8 +906,7 @@ static int manager_connect_console(Manager *m) { if (errno == ENOENT) return 0; - log_error("Failed to open /sys/class/tty/tty0/active: %m"); - return -errno; + return log_error_errno(errno, "Failed to open /sys/class/tty/tty0/active: %m"); } r = sd_event_add_io(m->event, &m->console_active_event_source, m->console_active_fd, 0, manager_dispatch_console, m); @@ -805,17 +927,8 @@ static int manager_connect_console(Manager *m) { return -EINVAL; } - r = ignore_signals(SIGRTMIN + 1, -1); - if (r < 0) { - log_error_errno(-r, "Cannot ignore SIGRTMIN + 1: %m"); - return r; - } - - r = sigprocmask_many(SIG_BLOCK, SIGRTMIN, -1); - if (r < 0) { - log_error_errno(-r, "Cannot block SIGRTMIN: %m"); - return r; - } + assert_se(ignore_signals(SIGRTMIN + 1, -1) >= 0); + assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGRTMIN, -1) >= 0); r = sd_event_add_signal(m->event, NULL, SIGRTMIN, manager_vt_switch, m); if (r < 0) @@ -902,6 +1015,7 @@ static int manager_connect_udev(Manager *m) { } /* Don't bother watching VCSA devices, if nobody cares */ +#if 0 /// elogind does not support autospawning of vts if (m->n_autovts > 0 && m->console_active_fd >= 0) { m->udev_vcsa_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); @@ -920,11 +1034,12 @@ static int manager_connect_udev(Manager *m) { if (r < 0) return r; } +#endif // 0 return 0; } -void manager_gc(Manager *m, bool drop_not_started) { +static void manager_gc(Manager *m, bool drop_not_started) { Seat *seat; Session *session; User *user; @@ -950,8 +1065,8 @@ 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); @@ -1016,34 +1131,63 @@ static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *us CLOCK_MONOTONIC, elapse, USEC_PER_SEC*30, manager_dispatch_idle_action, m); - if (r < 0) { - log_error_errno(-r, "Failed to add idle event source: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add idle event source: %m"); r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10); - if (r < 0) { - log_error_errno(-r, "Failed to set idle event source priority: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to set idle event source priority: %m"); } else { r = sd_event_source_set_time(m->idle_action_event_source, elapse); - if (r < 0) { - log_error_errno(-r, "Failed to set idle event timer: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to set idle event timer: %m"); r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT); - if (r < 0) { - log_error_errno(-r, "Failed to enable idle event timer: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to enable idle event timer: %m"); } return 0; } -int manager_startup(Manager *m) { +static int manager_parse_config_file(Manager *m) { +#if 0 /// elogind parses its own config file + assert(m); + + return config_parse_many(PKGSYSCONFDIR "/logind.conf", + CONF_PATHS_NULSTR("systemd/logind.conf.d"), + "Login\0", + config_item_perf_lookup, logind_gperf_lookup, + false, m); +#else + const char* logind_conf = getenv("ELOGIND_CONF_FILE"); + + assert(m); + + if (!logind_conf) + logind_conf = PKGSYSCONFDIR "/logind.conf"; + + return config_parse(NULL, logind_conf, NULL, "Login\0Sleep\0", + config_item_perf_lookup, logind_gperf_lookup, + false, false, true, m); +#endif // 0 +} + +static int manager_dispatch_reload_signal(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { + Manager *m = userdata; + int r; + + manager_reset_config(m); + r = manager_parse_config_file(m); + if (r < 0) + log_warning_errno(r, "Failed to parse config file, using defaults: %m"); + else + log_info("Config file reloaded."); + + return 0; +} + +static int manager_startup(Manager *m) { int r; Seat *seat; Session *session; @@ -1054,6 +1198,12 @@ int manager_startup(Manager *m) { assert(m); + assert_se(sigprocmask_many(SIG_SETMASK, NULL, SIGHUP, -1) >= 0); + + r = sd_event_add_signal(m->event, NULL, SIGHUP, manager_dispatch_reload_signal, m); + if (r < 0) + return log_error_errno(r, "Failed to register SIGHUP handler: %m"); + /* Connect to console */ r = manager_connect_console(m); if (r < 0) @@ -1061,10 +1211,8 @@ int manager_startup(Manager *m) { /* Connect to udev */ r = manager_connect_udev(m); - if (r < 0) { - log_error_errno(-r, "Failed to create udev watchers: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to create udev watchers: %m"); /* Connect to the bus */ r = manager_connect_bus(m); @@ -1073,45 +1221,45 @@ int manager_startup(Manager *m) { /* Instantiate magic seat 0 */ r = manager_add_seat(m, "seat0", &m->seat0); - if (r < 0) { - log_error_errno(-r, "Failed to add seat0: %m"); - return r; - } + if (r < 0) + return log_error_errno(r, "Failed to add seat0: %m"); - r = manager_set_lid_switch_ignore(m, 0 + IGNORE_LID_SWITCH_STARTUP_USEC); + r = manager_set_lid_switch_ignore(m, 0 + m->holdoff_timeout_usec); if (r < 0) - log_warning_errno(-r, "Failed to set up lid switch ignore event source: %m"); + log_warning_errno(r, "Failed to set up lid switch ignore event source: %m"); /* Deserialize state */ r = manager_enumerate_devices(m); if (r < 0) - log_warning_errno(-r, "Device enumeration failed: %m"); + log_warning_errno(r, "Device enumeration failed: %m"); r = manager_enumerate_seats(m); if (r < 0) - log_warning_errno(-r, "Seat enumeration failed: %m"); + log_warning_errno(r, "Seat enumeration failed: %m"); r = manager_enumerate_users(m); if (r < 0) - log_warning_errno(-r, "User enumeration failed: %m"); + log_warning_errno(r, "User enumeration failed: %m"); r = manager_enumerate_sessions(m); if (r < 0) - log_warning_errno(-r, "Session enumeration failed: %m"); + log_warning_errno(r, "Session enumeration failed: %m"); r = manager_enumerate_inhibitors(m); if (r < 0) - log_warning_errno(-r, "Inhibitor enumeration failed: %m"); + log_warning_errno(r, "Inhibitor enumeration failed: %m"); r = manager_enumerate_buttons(m); if (r < 0) - log_warning_errno(-r, "Button enumeration failed: %m"); + log_warning_errno(r, "Button enumeration failed: %m"); /* Remove stale objects before we start them */ manager_gc(m, false); /* Reserve the special reserved VT */ +#if 0 /// elogind does not support autospawning of vts manager_reserve_vt(m); +#endif // 0 /* And start everything */ HASHMAP_FOREACH(seat, m->seats, i) @@ -1134,14 +1282,12 @@ int manager_startup(Manager *m) { return 0; } -int manager_run(Manager *m) { +static int manager_run(Manager *m) { int r; assert(m); for (;;) { - usec_t us = (uint64_t) -1; - r = sd_event_get_state(m->event); if (r < 0) return r; @@ -1150,43 +1296,32 @@ int manager_run(Manager *m) { manager_gc(m, true); - if (manager_dispatch_delayed(m) > 0) + r = manager_dispatch_delayed(m, false); + if (r < 0) + return r; + if (r > 0) continue; - if (m->action_what != 0 && !m->action_job) { - usec_t x, y; - - x = now(CLOCK_MONOTONIC); - y = m->action_timestamp + m->inhibit_delay_max; - - us = x >= y ? 0 : y - x; - } - - r = sd_event_run(m->event, us); + r = sd_event_run(m->event, (uint64_t) -1); if (r < 0) return r; } } -static int manager_parse_config_file(Manager *m) { - assert(m); - - 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); -} - 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) { @@ -1195,14 +1330,38 @@ int main(int argc, char *argv[]) { goto finish; } + r = mac_selinux_init(); + if (r < 0) { + log_error_errno(r, "Could not initialize labelling: %m"); + goto finish; + } + /* Always create the directories people can create inotify * watches in. Note that some applications might check for the * existence of /run/systemd/seats/ to determine whether * logind is available, so please always make sure this check * stays in. */ +#if 0 /// elogind can not rely on systemd to help, so we need a bit more effort than this mkdir_label("/run/systemd/seats", 0755); mkdir_label("/run/systemd/users", 0755); mkdir_label("/run/systemd/sessions", 0755); +#else + 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"); +#endif // 0 m = manager_new(); if (!m) { @@ -1214,11 +1373,11 @@ int main(int argc, char *argv[]) { r = manager_startup(m); if (r < 0) { - log_error_errno(-r, "Failed to fully start up daemon: %m"); + log_error_errno(r, "Failed to fully start up daemon: %m"); goto finish; } - log_debug("systemd-logind running as pid "PID_FMT, getpid()); + log_debug("elogind running as pid "PID_FMT, getpid()); sd_notify(false, "READY=1\n" @@ -1226,7 +1385,7 @@ int main(int argc, char *argv[]) { r = manager_run(m); - log_debug("systemd-logind stopped as pid "PID_FMT, getpid()); + log_debug("elogind stopped as pid "PID_FMT, getpid()); finish: sd_notify(false,