X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flogin%2Flogind.c;h=87d46ee605b99bd174f8813b3b670824dc2f1bd6;hp=8bf520a2db63d2b27d562c7088c71072ffe6bb92;hb=e7176abbe818c75c6acd90227a7a84c3e05fee31;hpb=a6dbecc4e2a1b52daef5ba3b8e5ecf322352ffdb diff --git a/src/login/logind.c b/src/login/logind.c index 8bf520a2d..87d46ee60 100644 --- a/src/login/logind.c +++ b/src/login/logind.c @@ -20,38 +20,30 @@ ***/ #include -#include #include #include #include #include -#include -#include #include #include -#include - -#include "logind.h" -#include "dbus-common.h" -#include "dbus-loop.h" +#include "sd-daemon.h" #include "strv.h" #include "conf-parser.h" #include "mkdir.h" +#include "bus-util.h" +#include "bus-error.h" +#include "logind.h" Manager *manager_new(void) { Manager *m; + int r; m = new0(Manager, 1); if (!m) return NULL; m->console_active_fd = -1; - m->bus_fd = -1; - m->udev_seat_fd = -1; - m->udev_vcsa_fd = -1; - m->udev_button_fd = -1; - m->epoll_fd = -1; m->reserve_vt_fd = -1; m->n_autovts = 6; @@ -63,7 +55,6 @@ Manager *manager_new(void) { m->handle_lid_switch = HANDLE_SUSPEND; m->lid_switch_ignore_inhibited = true; - m->idle_action_fd = -1; m->idle_action_usec = 30 * USEC_PER_MINUTE; m->idle_action = HANDLE_IGNORE; m->idle_action_not_before_usec = now(CLOCK_MONOTONIC); @@ -74,18 +65,15 @@ Manager *manager_new(void) { m->users = hashmap_new(trivial_hash_func, trivial_compare_func); m->inhibitors = hashmap_new(string_hash_func, string_compare_func); m->buttons = hashmap_new(string_hash_func, string_compare_func); - m->busnames = hashmap_new(string_hash_func, string_compare_func); m->user_units = hashmap_new(string_hash_func, string_compare_func); m->session_units = hashmap_new(string_hash_func, string_compare_func); - m->session_fds = hashmap_new(trivial_hash_func, trivial_compare_func); - m->inhibitor_fds = hashmap_new(trivial_hash_func, trivial_compare_func); - m->button_fds = hashmap_new(trivial_hash_func, trivial_compare_func); + m->busnames = set_new(string_hash_func, string_compare_func); if (!m->devices || !m->seats || !m->sessions || !m->users || !m->inhibitors || !m->buttons || !m->busnames || !m->user_units || !m->session_units || - !m->session_fds || !m->inhibitor_fds || !m->button_fds) { + !m->busnames) { manager_free(m); return NULL; } @@ -102,6 +90,12 @@ Manager *manager_new(void) { return NULL; } + r = sd_event_default(&m->event); + if (r < 0) { + manager_free(m); + return NULL; + } + return m; } @@ -112,7 +106,6 @@ void manager_free(Manager *m) { Seat *s; Inhibitor *i; Button *b; - char *n; assert(m); @@ -134,23 +127,25 @@ void manager_free(Manager *m) { while ((b = hashmap_first(m->buttons))) button_free(b); - while ((n = hashmap_first(m->busnames))) - free(hashmap_remove(m->busnames, n)); - hashmap_free(m->devices); hashmap_free(m->seats); hashmap_free(m->sessions); hashmap_free(m->users); hashmap_free(m->inhibitors); hashmap_free(m->buttons); - hashmap_free(m->busnames); hashmap_free(m->user_units); hashmap_free(m->session_units); - hashmap_free(m->session_fds); - hashmap_free(m->inhibitor_fds); - hashmap_free(m->button_fds); + set_free_free(m->busnames); + + sd_event_source_unref(m->idle_action_event_source); + + sd_event_source_unref(m->console_active_event_source); + sd_event_source_unref(m->udev_seat_event_source); + sd_event_source_unref(m->udev_device_event_source); + sd_event_source_unref(m->udev_vcsa_event_source); + sd_event_source_unref(m->udev_button_event_source); if (m->console_active_fd >= 0) close_nointr_nofail(m->console_active_fd); @@ -167,24 +162,14 @@ void manager_free(Manager *m) { if (m->udev) udev_unref(m->udev); - if (m->bus) { - dbus_connection_flush(m->bus); - dbus_connection_close(m->bus); - dbus_connection_unref(m->bus); - } + bus_verify_polkit_async_registry_free(m->bus, m->polkit_registry); - if (m->bus_fd >= 0) - close_nointr_nofail(m->bus_fd); - - if (m->epoll_fd >= 0) - close_nointr_nofail(m->epoll_fd); + sd_bus_unref(m->bus); + sd_event_unref(m->event); if (m->reserve_vt_fd >= 0) close_nointr_nofail(m->reserve_vt_fd); - if (m->idle_action_fd >= 0) - close_nointr_nofail(m->idle_action_fd); - strv_free(m->kill_only_users); strv_free(m->kill_exclude_users); @@ -192,314 +177,7 @@ void manager_free(Manager *m) { free(m); } -int manager_add_device(Manager *m, const char *sysfs, bool master, Device **_device) { - Device *d; - - assert(m); - assert(sysfs); - - d = hashmap_get(m->devices, sysfs); - if (d) { - if (_device) - *_device = d; - - /* we support adding master-flags, but not removing them */ - d->master = d->master || master; - - return 0; - } - - d = device_new(m, sysfs, master); - if (!d) - return -ENOMEM; - - if (_device) - *_device = d; - - return 0; -} - -int manager_add_seat(Manager *m, const char *id, Seat **_seat) { - Seat *s; - - assert(m); - assert(id); - - s = hashmap_get(m->seats, id); - if (s) { - if (_seat) - *_seat = s; - - return 0; - } - - s = seat_new(m, id); - if (!s) - return -ENOMEM; - - if (_seat) - *_seat = s; - - return 0; -} - -int manager_add_session(Manager *m, const char *id, Session **_session) { - Session *s; - - assert(m); - assert(id); - - s = hashmap_get(m->sessions, id); - if (s) { - if (_session) - *_session = s; - - return 0; - } - - s = session_new(m, id); - if (!s) - return -ENOMEM; - - if (_session) - *_session = s; - - return 0; -} - -int manager_add_user(Manager *m, uid_t uid, gid_t gid, const char *name, User **_user) { - User *u; - - assert(m); - assert(name); - - u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid)); - if (u) { - if (_user) - *_user = u; - - return 0; - } - - u = user_new(m, uid, gid, name); - if (!u) - return -ENOMEM; - - if (_user) - *_user = u; - - return 0; -} - -int manager_add_user_by_name(Manager *m, const char *name, User **_user) { - uid_t uid; - gid_t gid; - int r; - - assert(m); - assert(name); - - r = get_user_creds(&name, &uid, &gid, NULL, NULL); - if (r < 0) - return r; - - return manager_add_user(m, uid, gid, name, _user); -} - -int manager_add_user_by_uid(Manager *m, uid_t uid, User **_user) { - struct passwd *p; - - assert(m); - - errno = 0; - p = getpwuid(uid); - if (!p) - return errno ? -errno : -ENOENT; - - return manager_add_user(m, uid, p->pw_gid, p->pw_name, _user); -} - -int manager_add_inhibitor(Manager *m, const char* id, Inhibitor **_inhibitor) { - Inhibitor *i; - - assert(m); - assert(id); - - i = hashmap_get(m->inhibitors, id); - if (i) { - if (_inhibitor) - *_inhibitor = i; - - return 0; - } - - i = inhibitor_new(m, id); - if (!i) - return -ENOMEM; - - if (_inhibitor) - *_inhibitor = i; - - return 0; -} - -int manager_add_button(Manager *m, const char *name, Button **_button) { - Button *b; - - assert(m); - assert(name); - - b = hashmap_get(m->buttons, name); - if (b) { - if (_button) - *_button = b; - - return 0; - } - - b = button_new(m, name); - if (!b) - return -ENOMEM; - - if (_button) - *_button = b; - - return 0; -} - -int manager_watch_busname(Manager *m, const char *name) { - char *n; - int r; - - assert(m); - assert(name); - - if (hashmap_get(m->busnames, name)) - return 0; - - n = strdup(name); - if (!n) - return -ENOMEM; - - r = hashmap_put(m->busnames, n, n); - if (r < 0) { - free(n); - return r; - } - - return 0; -} - -void manager_drop_busname(Manager *m, const char *name) { - Session *session; - Iterator i; - char *key; - - assert(m); - assert(name); - - if (!hashmap_get(m->busnames, name)) - return; - - /* keep it if the name still owns a controller */ - HASHMAP_FOREACH(session, m->sessions, i) - if (session_is_controller(session, name)) - return; - - key = hashmap_remove(m->busnames, name); - if (key) - free(key); -} - -int manager_process_seat_device(Manager *m, struct udev_device *d) { - Device *device; - int r; - - assert(m); - - if (streq_ptr(udev_device_get_action(d), "remove")) { - - device = hashmap_get(m->devices, udev_device_get_syspath(d)); - if (!device) - return 0; - - seat_add_to_gc_queue(device->seat); - device_free(device); - - } else { - const char *sn; - Seat *seat = NULL; - bool master; - - sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(sn)) - sn = "seat0"; - - if (!seat_name_is_valid(sn)) { - log_warning("Device with invalid seat name %s found, ignoring.", sn); - return 0; - } - - /* ignore non-master devices for unknown seats */ - master = udev_device_has_tag(d, "master-of-seat"); - if (!master && !(seat = hashmap_get(m->seats, sn))) - return 0; - - r = manager_add_device(m, udev_device_get_syspath(d), master, &device); - if (r < 0) - return r; - - if (!seat) { - r = manager_add_seat(m, sn, &seat); - if (r < 0) { - if (!device->seat) - device_free(device); - - return r; - } - } - - device_attach(device, seat); - seat_start(seat); - } - - return 0; -} - -int manager_process_button_device(Manager *m, struct udev_device *d) { - Button *b; - - int r; - - assert(m); - - if (streq_ptr(udev_device_get_action(d), "remove")) { - - b = hashmap_get(m->buttons, udev_device_get_sysname(d)); - if (!b) - return 0; - - button_free(b); - - } else { - const char *sn; - - r = manager_add_button(m, udev_device_get_sysname(d), &b); - if (r < 0) - return r; - - sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(sn)) - sn = "seat0"; - - button_set_seat(b, sn); - button_open(b); - } - - return 0; -} - -int manager_enumerate_devices(Manager *m) { +static int manager_enumerate_devices(Manager *m) { struct udev_list_entry *item = NULL, *first = NULL; struct udev_enumerate *e; int r; @@ -548,7 +226,7 @@ finish: return r; } -int manager_enumerate_buttons(Manager *m) { +static int manager_enumerate_buttons(Manager *m) { struct udev_list_entry *item = NULL, *first = NULL; struct udev_enumerate *e; int r; @@ -606,7 +284,7 @@ finish: return r; } -int manager_enumerate_seats(Manager *m) { +static int manager_enumerate_seats(Manager *m) { _cleanup_closedir_ DIR *d = NULL; struct dirent *de; int r = 0; @@ -679,7 +357,7 @@ static int manager_enumerate_linger_users(Manager *m) { return r; } -int manager_enumerate_users(Manager *m) { +static int manager_enumerate_users(Manager *m) { _cleanup_closedir_ DIR *d = NULL; struct dirent *de; int r, k; @@ -723,7 +401,7 @@ int manager_enumerate_users(Manager *m) { return r; } -int manager_enumerate_sessions(Manager *m) { +static int manager_enumerate_sessions(Manager *m) { _cleanup_closedir_ DIR *d = NULL; struct dirent *de; int r = 0; @@ -771,7 +449,7 @@ int manager_enumerate_sessions(Manager *m) { return r; } -int manager_enumerate_inhibitors(Manager *m) { +static int manager_enumerate_inhibitors(Manager *m) { _cleanup_closedir_ DIR *d = NULL; struct dirent *de; int r = 0; @@ -809,7 +487,8 @@ int manager_enumerate_inhibitors(Manager *m) { return r; } -int manager_dispatch_seat_udev(Manager *m) { +static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { + Manager *m = userdata; struct udev_device *d; int r; @@ -825,7 +504,8 @@ int manager_dispatch_seat_udev(Manager *m) { return r; } -static int manager_dispatch_device_udev(Manager *m) { +static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { + Manager *m = userdata; struct udev_device *d; int r; @@ -841,7 +521,8 @@ static int manager_dispatch_device_udev(Manager *m) { return r; } -int manager_dispatch_vcsa_udev(Manager *m) { +static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { + Manager *m = userdata; struct udev_device *d; int r = 0; const char *name; @@ -865,7 +546,8 @@ int manager_dispatch_vcsa_udev(Manager *m) { return r; } -int manager_dispatch_button_udev(Manager *m) { +static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) { + Manager *m = userdata; struct udev_device *d; int r; @@ -881,89 +563,18 @@ int manager_dispatch_button_udev(Manager *m) { return r; } -int manager_dispatch_console(Manager *m) { +static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) { + Manager *m = userdata; + assert(m); assert(m->seat0); + assert(m->console_active_fd == fd); seat_read_active_vt(m->seat0); return 0; } -static int vt_is_busy(int vtnr) { - struct vt_stat vt_stat; - int r = 0, fd; - - assert(vtnr >= 1); - - /* We explicitly open /dev/tty1 here instead of /dev/tty0. If - * we'd open the latter we'd open the foreground tty which - * hence would be unconditionally busy. By opening /dev/tty1 - * we avoid this. Since tty1 is special and needs to be an - * explicitly loaded getty or DM this is safe. */ - - fd = open_terminal("/dev/tty1", O_RDWR|O_NOCTTY|O_CLOEXEC); - if (fd < 0) - return -errno; - - if (ioctl(fd, VT_GETSTATE, &vt_stat) < 0) - r = -errno; - else - r = !!(vt_stat.v_state & (1 << vtnr)); - - close_nointr_nofail(fd); - - return r; -} - -int manager_spawn_autovt(Manager *m, int vtnr) { - int r; - char *name = NULL; - const char *mode = "fail"; - - assert(m); - assert(vtnr >= 1); - - if ((unsigned) vtnr > m->n_autovts && - (unsigned) vtnr != m->reserve_vt) - return 0; - - if ((unsigned) vtnr != m->reserve_vt) { - /* If this is the reserved TTY, we'll start the getty - * on it in any case, but otherwise only if it is not - * busy. */ - - r = vt_is_busy(vtnr); - if (r < 0) - return r; - else if (r > 0) - return -EBUSY; - } - - if (asprintf(&name, "autovt@tty%i.service", vtnr) < 0) { - log_error("Could not allocate service name."); - r = -ENOMEM; - goto finish; - } - - r = bus_method_call_with_reply ( - m->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartUnit", - NULL, - NULL, - DBUS_TYPE_STRING, &name, - DBUS_TYPE_STRING, &mode, - DBUS_TYPE_INVALID); - -finish: - free(name); - - return r; -} - static int manager_reserve_vt(Manager *m) { _cleanup_free_ char *p = NULL; @@ -987,224 +598,150 @@ static int manager_reserve_vt(Manager *m) { return 0; } -int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) { - _cleanup_free_ char *unit = NULL; - Session *s; +static int manager_connect_bus(Manager *m) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(m); - assert(session); - - if (pid < 1) - return -EINVAL; + assert(!m->bus); - r = cg_pid_get_unit(pid, &unit); - if (r < 0) + r = sd_bus_default_system(&m->bus); + if (r < 0) { + log_error("Failed to connect to system bus: %s", strerror(-r)); return r; + } - s = hashmap_get(m->session_units, unit); - if (!s) - return 0; - - *session = s; - return 1; -} - -int manager_get_user_by_pid(Manager *m, pid_t pid, User **user) { - _cleanup_free_ char *unit = NULL; - User *u; - int r; - - assert(m); - assert(user); - - if (pid < 1) - return -EINVAL; - - r = cg_pid_get_slice(pid, &unit); - if (r < 0) + r = sd_bus_add_object_vtable(m->bus, "/org/freedesktop/login1", "org.freedesktop.login1.Manager", manager_vtable, m); + if (r < 0) { + log_error("Failed to add manager object vtable: %s", strerror(-r)); return r; - - u = hashmap_get(m->user_units, unit); - if (!u) - return 0; - - *user = u; - return 1; -} - -static void manager_dispatch_other(Manager *m, int fd) { - Session *s; - Inhibitor *i; - Button *b; - - assert_se(m); - assert_se(fd >= 0); - - s = hashmap_get(m->session_fds, INT_TO_PTR(fd + 1)); - if (s) { - assert(s->fifo_fd == fd); - session_remove_fifo(s); - session_stop(s); - return; } - i = hashmap_get(m->inhibitor_fds, INT_TO_PTR(fd + 1)); - if (i) { - assert(i->fifo_fd == fd); - inhibitor_stop(i); - inhibitor_free(i); - return; + r = sd_bus_add_fallback_vtable(m->bus, "/org/freedesktop/login1/seat", "org.freedesktop.login1.Seat", seat_vtable, seat_object_find, m); + if (r < 0) { + log_error("Failed to add seat object vtable: %s", strerror(-r)); + return r; } - b = hashmap_get(m->button_fds, INT_TO_PTR(fd + 1)); - if (b) { - assert(b->fd == fd); - button_process(b); - return; + r = sd_bus_add_node_enumerator(m->bus, "/org/freedesktop/login1/seat", seat_node_enumerator, m); + if (r < 0) { + log_error("Failed to add seat enumerator: %s", strerror(-r)); + return r; } - assert_not_reached("Got event for unknown fd"); -} - -static int manager_connect_bus(Manager *m) { - DBusError error; - int r; - struct epoll_event ev = { - .events = EPOLLIN, - .data.u32 = FD_BUS, - }; - - assert(m); - assert(!m->bus); - assert(m->bus_fd < 0); + r = sd_bus_add_fallback_vtable(m->bus, "/org/freedesktop/login1/session", "org.freedesktop.login1.Session", session_vtable, session_object_find, m); + if (r < 0) { + log_error("Failed to add session object vtable: %s", strerror(-r)); + return r; + } - dbus_error_init(&error); + r = sd_bus_add_node_enumerator(m->bus, "/org/freedesktop/login1/session", session_node_enumerator, m); + if (r < 0) { + log_error("Failed to add session enumerator: %s", strerror(-r)); + return r; + } - m->bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error); - if (!m->bus) { - log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error)); - r = -ECONNREFUSED; - goto fail; + r = sd_bus_add_fallback_vtable(m->bus, "/org/freedesktop/login1/user", "org.freedesktop.login1.User", user_vtable, user_object_find, m); + if (r < 0) { + log_error("Failed to add user object vtable: %s", strerror(-r)); + return r; } - if (!dbus_connection_register_object_path(m->bus, "/org/freedesktop/login1", &bus_manager_vtable, m) || - !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/seat", &bus_seat_vtable, m) || - !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/session", &bus_session_vtable, m) || - !dbus_connection_register_fallback(m->bus, "/org/freedesktop/login1/user", &bus_user_vtable, m) || - !dbus_connection_add_filter(m->bus, bus_message_filter, m, NULL)) { - r = log_oom(); - goto fail; + r = sd_bus_add_node_enumerator(m->bus, "/org/freedesktop/login1/user", user_node_enumerator, m); + if (r < 0) { + log_error("Failed to add user enumerator: %s", strerror(-r)); + return r; } - dbus_bus_add_match(m->bus, - "type='signal'," - "sender='"DBUS_SERVICE_DBUS"'," - "interface='"DBUS_INTERFACE_DBUS"'," - "member='NameOwnerChanged'," - "path='"DBUS_PATH_DBUS"'", - &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match for NameOwnerChanged: %s", bus_error_message(&error)); - dbus_error_free(&error); + r = sd_bus_add_match(m->bus, + "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("Failed to add match for NameOwnerChanged: %s", strerror(-r)); + return r; } - dbus_bus_add_match(m->bus, - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.systemd1.Manager'," - "member='JobRemoved'," - "path='/org/freedesktop/systemd1'", - &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match for JobRemoved: %s", bus_error_message(&error)); - dbus_error_free(&error); + r = sd_bus_add_match(m->bus, + "type='signal'," + "sender='org.freedesktop.systemd1'," + "interface='org.freedesktop.systemd1.Manager'," + "member='JobRemoved'," + "path='/org/freedesktop/systemd1'", + match_job_removed, m); + if (r < 0) { + log_error("Failed to add match for JobRemoved: %s", strerror(-r)); + return r; } - dbus_bus_add_match(m->bus, - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.systemd1.Manager'," - "member='UnitRemoved'," - "path='/org/freedesktop/systemd1'", - &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match for UnitRemoved: %s", bus_error_message(&error)); - dbus_error_free(&error); + r = sd_bus_add_match(m->bus, + "type='signal'," + "sender='org.freedesktop.systemd1'," + "interface='org.freedesktop.systemd1.Manager'," + "member='UnitRemoved'," + "path='/org/freedesktop/systemd1'", + match_unit_removed, m); + if (r < 0) { + log_error("Failed to add match for UnitRemoved: %s", strerror(-r)); + return r; } - dbus_bus_add_match(m->bus, - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.DBus.Properties'," - "member='PropertiesChanged'", - &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match for PropertiesChanged: %s", bus_error_message(&error)); - dbus_error_free(&error); + r = sd_bus_add_match(m->bus, + "type='signal'," + "sender='org.freedesktop.systemd1'," + "interface='org.freedesktop.DBus.Properties'," + "member='PropertiesChanged'", + match_properties_changed, m); + if (r < 0) { + log_error("Failed to add match for PropertiesChanged: %s", strerror(-r)); + return r; } - dbus_bus_add_match(m->bus, - "type='signal'," - "sender='org.freedesktop.systemd1'," - "interface='org.freedesktop.systemd1.Manager'," - "member='Reloading'," - "path='/org/freedesktop/systemd1'", - &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to add match for Reloading: %s", bus_error_message(&error)); - dbus_error_free(&error); + r = sd_bus_add_match(m->bus, + "type='signal'," + "sender='org.freedesktop.systemd1'," + "interface='org.freedesktop.systemd1.Manager'," + "member='Reloading'," + "path='/org/freedesktop/systemd1'", + match_reloading, m); + if (r < 0) { + log_error("Failed to add match for Reloading: %s", strerror(-r)); + return r; } - r = bus_method_call_with_reply( + r = sd_bus_call_method( m->bus, "org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "Subscribe", - NULL, &error, - DBUS_TYPE_INVALID); + NULL, NULL); if (r < 0) { - log_error("Failed to enable subscription: %s", bus_error(&error, r)); - dbus_error_free(&error); - } - - r = dbus_bus_request_name(m->bus, "org.freedesktop.login1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error); - if (dbus_error_is_set(&error)) { - log_error("Failed to register name on bus: %s", bus_error_message(&error)); - r = -EIO; - goto fail; + log_error("Failed to enable subscription: %s", bus_error_message(&error, r)); + return r; } - if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) { - log_error("Failed to acquire name."); - r = -EEXIST; - goto fail; + r = sd_bus_request_name(m->bus, "org.freedesktop.login1", SD_BUS_NAME_REPLACE_EXISTING|SD_BUS_NAME_DO_NOT_QUEUE); + if (r < 0) { + log_error("Failed to register name: %s", strerror(-r)); + return r; } - m->bus_fd = bus_loop_open(m->bus); - if (m->bus_fd < 0) { - r = m->bus_fd; - goto fail; + r = sd_bus_attach_event(m->bus, m->event, 0); + if (r < 0) { + log_error("Failed to attach bus to event loop: %s", strerror(-r)); + return r; } - if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->bus_fd, &ev) < 0) - goto fail; - return 0; - -fail: - dbus_error_free(&error); - - return r; } static int manager_connect_console(Manager *m) { - struct epoll_event ev = { - .events = 0, - .data.u32 = FD_CONSOLE, - }; + int r; assert(m); assert(m->console_active_fd < 0); @@ -1212,10 +749,8 @@ static int manager_connect_console(Manager *m) { /* On certain architectures (S390 and Xen, and containers), /dev/tty0 does not exist, so don't fail if we can't open it. */ - if (access("/dev/tty0", F_OK) < 0) { - m->console_active_fd = -1; + if (access("/dev/tty0", F_OK) < 0) return 0; - } m->console_active_fd = open("/sys/class/tty/tty0/active", O_RDONLY|O_NOCTTY|O_CLOEXEC); if (m->console_active_fd < 0) { @@ -1229,18 +764,17 @@ static int manager_connect_console(Manager *m) { return -errno; } - if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->console_active_fd, &ev) < 0) - return -errno; + r = sd_event_add_io(m->event, m->console_active_fd, 0, manager_dispatch_console, m, &m->console_active_event_source); + if (r < 0) { + log_error("Failed to watch foreground console"); + return r; + } return 0; } static int manager_connect_udev(Manager *m) { int r; - struct epoll_event ev = { - .events = EPOLLIN, - .data.u32 = FD_SEAT_UDEV, - }; assert(m); assert(!m->udev_seat_monitor); @@ -1260,10 +794,9 @@ static int manager_connect_udev(Manager *m) { if (r < 0) return r; - m->udev_seat_fd = udev_monitor_get_fd(m->udev_seat_monitor); - - if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_seat_fd, &ev) < 0) - return -errno; + r = sd_event_add_io(m->event, udev_monitor_get_fd(m->udev_seat_monitor), EPOLLIN, manager_dispatch_seat_udev, m, &m->udev_seat_event_source); + if (r < 0) + return r; m->udev_device_monitor = udev_monitor_new_from_netlink(m->udev, "udev"); if (!m->udev_device_monitor) @@ -1285,12 +818,9 @@ static int manager_connect_udev(Manager *m) { if (r < 0) return r; - m->udev_device_fd = udev_monitor_get_fd(m->udev_device_monitor); - zero(ev); - ev.events = EPOLLIN; - ev.data.u32 = FD_DEVICE_UDEV; - if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_device_fd, &ev) < 0) - return -errno; + r = sd_event_add_io(m->event, udev_monitor_get_fd(m->udev_device_monitor), EPOLLIN, manager_dispatch_device_udev, m, &m->udev_device_event_source); + if (r < 0) + return r; /* Don't watch keys if nobody cares */ if (m->handle_power_key != HANDLE_IGNORE || @@ -1314,13 +844,9 @@ static int manager_connect_udev(Manager *m) { if (r < 0) return r; - m->udev_button_fd = udev_monitor_get_fd(m->udev_button_monitor); - - zero(ev); - ev.events = EPOLLIN; - ev.data.u32 = FD_BUTTON_UDEV; - if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_button_fd, &ev) < 0) - return -errno; + r = sd_event_add_io(m->event, udev_monitor_get_fd(m->udev_button_monitor), EPOLLIN, manager_dispatch_button_udev, m, &m->udev_button_event_source); + if (r < 0) + return r; } /* Don't bother watching VCSA devices, if nobody cares */ @@ -1338,13 +864,9 @@ static int manager_connect_udev(Manager *m) { if (r < 0) return r; - m->udev_vcsa_fd = udev_monitor_get_fd(m->udev_vcsa_monitor); - - zero(ev); - ev.events = EPOLLIN; - ev.data.u32 = FD_VCSA_UDEV; - if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->udev_vcsa_fd, &ev) < 0) - return -errno; + r = sd_event_add_io(m->event, udev_monitor_get_fd(m->udev_vcsa_monitor), EPOLLIN, manager_dispatch_vcsa_udev, m, &m->udev_vcsa_event_source); + if (r < 0) + return r; } return 0; @@ -1358,20 +880,20 @@ void manager_gc(Manager *m, bool drop_not_started) { assert(m); while ((seat = m->seat_gc_queue)) { - LIST_REMOVE(Seat, gc_queue, m->seat_gc_queue, seat); + LIST_REMOVE(gc_queue, m->seat_gc_queue, seat); seat->in_gc_queue = false; - if (seat_check_gc(seat, drop_not_started) == 0) { + if (!seat_check_gc(seat, drop_not_started)) { seat_stop(seat); seat_free(seat); } } while ((session = m->session_gc_queue)) { - LIST_REMOVE(Session, gc_queue, m->session_gc_queue, session); + LIST_REMOVE(gc_queue, m->session_gc_queue, session); session->in_gc_queue = false; - if (session_check_gc(session, drop_not_started) == 0) { + if (!session_check_gc(session, drop_not_started)) { session_stop(session); session_finalize(session); session_free(session); @@ -1379,10 +901,10 @@ void manager_gc(Manager *m, bool drop_not_started) { } while ((user = m->user_gc_queue)) { - LIST_REMOVE(User, gc_queue, m->user_gc_queue, user); + LIST_REMOVE(gc_queue, m->user_gc_queue, user); user->in_gc_queue = false; - if (user_check_gc(user, drop_not_started) == 0) { + if (!user_check_gc(user, drop_not_started)) { user_stop(user); user_finalize(user); user_free(user); @@ -1390,81 +912,24 @@ void manager_gc(Manager *m, bool drop_not_started) { } } -int manager_get_idle_hint(Manager *m, dual_timestamp *t) { - Session *s; - bool idle_hint; - dual_timestamp ts = { 0, 0 }; - Iterator i; - - assert(m); - - idle_hint = !manager_is_inhibited(m, INHIBIT_IDLE, INHIBIT_BLOCK, t, false, false, 0); - - HASHMAP_FOREACH(s, m->sessions, i) { - dual_timestamp k; - int ih; - - ih = session_get_idle_hint(s, &k); - if (ih < 0) - return ih; - - if (!ih) { - if (!idle_hint) { - if (k.monotonic < ts.monotonic) - ts = k; - } else { - idle_hint = false; - ts = k; - } - } else if (idle_hint) { - - if (k.monotonic > ts.monotonic) - ts = k; - } - } - - if (t) - *t = ts; - - return idle_hint; -} - -bool manager_shall_kill(Manager *m, const char *user) { - assert(m); - assert(user); - - if (!m->kill_user_processes) - return false; - - if (strv_contains(m->kill_exclude_users, user)) - return false; - - if (strv_isempty(m->kill_only_users)) - return true; - - return strv_contains(m->kill_only_users, user); -} - -int manager_dispatch_idle_action(Manager *m) { +static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *userdata) { + Manager *m = userdata; struct dual_timestamp since; - struct itimerspec its = {}; + usec_t n, elapse; int r; - usec_t n; assert(m); if (m->idle_action == HANDLE_IGNORE || - m->idle_action_usec <= 0) { - r = 0; - goto finish; - } + m->idle_action_usec <= 0) + return 0; n = now(CLOCK_MONOTONIC); r = manager_get_idle_hint(m, &since); if (r <= 0) /* Not idle. Let's check if after a timeout it might be idle then. */ - timespec_store(&its.it_value, n + m->idle_action_usec); + elapse = n + m->idle_action_usec; else { /* Idle! Let's see if it's time to do something, or if * we shall sleep for longer. */ @@ -1477,45 +942,39 @@ int manager_dispatch_idle_action(Manager *m) { m->idle_action_not_before_usec = n; } - timespec_store(&its.it_value, MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec); + elapse = MAX(since.monotonic, m->idle_action_not_before_usec) + m->idle_action_usec; } - if (m->idle_action_fd < 0) { - struct epoll_event ev = { - .events = EPOLLIN, - .data.u32 = FD_IDLE_ACTION, - }; + if (!m->idle_action_event_source) { - m->idle_action_fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK|TFD_CLOEXEC); - if (m->idle_action_fd < 0) { - log_error("Failed to create idle action timer: %m"); - r = -errno; - goto finish; + r = sd_event_add_monotonic(m->event, elapse, USEC_PER_SEC*30, manager_dispatch_idle_action, m, &m->idle_action_event_source); + if (r < 0) { + log_error("Failed to add idle event source: %s", strerror(-r)); + return r; } - if (epoll_ctl(m->epoll_fd, EPOLL_CTL_ADD, m->idle_action_fd, &ev) < 0) { - log_error("Failed to add idle action timer to epoll: %m"); - r = -errno; - goto finish; + r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10); + if (r < 0) { + log_error("Failed to set idle event source priority: %s", strerror(-r)); + return r; + } + } else { + r = sd_event_source_set_time(m->idle_action_event_source, elapse); + if (r < 0) { + log_error("Failed to set idle event timer: %s", strerror(-r)); + return r; } - } - if (timerfd_settime(m->idle_action_fd, TFD_TIMER_ABSTIME, &its, NULL) < 0) { - log_error("Failed to reset timerfd: %m"); - r = -errno; - goto finish; + r = sd_event_source_set_enabled(m->idle_action_event_source, SD_EVENT_ONESHOT); + if (r < 0) { + log_error("Failed to enable idle event timer: %s", strerror(-r)); + return r; + } } return 0; - -finish: - if (m->idle_action_fd >= 0) { - close_nointr_nofail(m->idle_action_fd); - m->idle_action_fd = -1; - } - - return r; } + int manager_startup(Manager *m) { int r; Seat *seat; @@ -1525,11 +984,6 @@ int manager_startup(Manager *m) { Iterator i; assert(m); - assert(m->epoll_fd <= 0); - - m->epoll_fd = epoll_create1(EPOLL_CLOEXEC); - if (m->epoll_fd < 0) - return -errno; /* Connect to console */ r = manager_connect_console(m); @@ -1538,8 +992,10 @@ int manager_startup(Manager *m) { /* Connect to udev */ r = manager_connect_udev(m); - if (r < 0) + if (r < 0) { + log_error("Failed to create udev watchers: %s", strerror(-r)); return r; + } /* Connect to the bus */ r = manager_connect_bus(m); @@ -1548,8 +1004,10 @@ int manager_startup(Manager *m) { /* Instantiate magic seat 0 */ r = manager_add_seat(m, "seat0", &m->seat0); - if (r < 0) + if (r < 0) { + log_error("Failed to add seat0: %s", strerror(-r)); return r; + } /* Deserialize state */ r = manager_enumerate_devices(m); @@ -1595,7 +1053,7 @@ int manager_startup(Manager *m) { HASHMAP_FOREACH(inhibitor, m->inhibitors, i) inhibitor_start(inhibitor); - manager_dispatch_idle_action(m); + manager_dispatch_idle_action(NULL, 0, m); return 0; } @@ -1621,12 +1079,18 @@ static int manager_recheck_buttons(Manager *m) { } int manager_run(Manager *m) { + int r; + assert(m); for (;;) { - struct epoll_event event; - int n; - int msec = -1; + usec_t us = (uint64_t) -1; + + r = sd_event_get_state(m->event); + if (r < 0) + return r; + if (r == SD_EVENT_FINISHED) + return 0; manager_gc(m, true); @@ -1636,66 +1100,18 @@ int manager_run(Manager *m) { if (manager_recheck_buttons(m) > 0) continue; - if (dbus_connection_dispatch(m->bus) != DBUS_DISPATCH_COMPLETE) - continue; - - manager_gc(m, true); - if (m->action_what != 0 && !m->action_job) { usec_t x, y; x = now(CLOCK_MONOTONIC); y = m->action_timestamp + m->inhibit_delay_max; - msec = x >= y ? 0 : (int) ((y - x) / USEC_PER_MSEC); - } - - n = epoll_wait(m->epoll_fd, &event, 1, msec); - if (n < 0) { - if (errno == EINTR || errno == EAGAIN) - continue; - - log_error("epoll() failed: %m"); - return -errno; + us = x >= y ? 0 : y - x; } - if (n == 0) - continue; - - switch (event.data.u32) { - - case FD_SEAT_UDEV: - manager_dispatch_seat_udev(m); - break; - - case FD_DEVICE_UDEV: - manager_dispatch_device_udev(m); - break; - - case FD_VCSA_UDEV: - manager_dispatch_vcsa_udev(m); - break; - - case FD_BUTTON_UDEV: - manager_dispatch_button_udev(m); - break; - - case FD_CONSOLE: - manager_dispatch_console(m); - break; - - case FD_IDLE_ACTION: - manager_dispatch_idle_action(m); - break; - - case FD_BUS: - bus_loop_dispatch(m->bus_fd); - break; - - default: - if (event.data.u32 >= FD_OTHER_BASE) - manager_dispatch_other(m, event.data.u32 - FD_OTHER_BASE); - } + r = sd_event_run(m->event, us); + if (r < 0) + return r; } return 0;