-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
***/
#include <errno.h>
-#include <libudev.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
+#include "libudev.h"
#include "sd-daemon.h"
-#include "strv.h"
-#include "conf-parser.h"
-#include "bus-util.h"
+
+#include "alloc-util.h"
#include "bus-error.h"
-#include "udev-util.h"
-#include "signal-util.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) {
+/// additional includes elogind needs
+#include "cgroup.h" // From src/core/
+#include "label.h"
+#include "mount-setup.h" // From src/core
+#include "musl_missing.h"
+
+static void manager_free(Manager *m);
+static int manager_parse_config_file(Manager *m);
+
+static Manager *manager_new(void) {
+#ifdef ENABLE_DEBUG_ELOGIND
+ int dbg_cnt;
+#endif // ENABLE_DEBUG_ELOGIND
Manager *m;
int r;
if (!m)
return NULL;
+ m->pin_cgroupfs_fd = -1;
+
m->console_active_fd = -1;
+#if 0 /// elogind does not support autospawning of vts
+ 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;
m->idle_action_not_before_usec = now(CLOCK_MONOTONIC);
m->runtime_dir_size = PAGE_ALIGN((size_t) (physical_memory() / 10)); /* 10% */
+ m->user_tasks_max = UINT64_C(12288);
m->devices = hashmap_new(&string_hash_ops);
m->seats = hashmap_new(&string_hash_ops);
m->inhibitors = hashmap_new(&string_hash_ops);
m->buttons = hashmap_new(&string_hash_ops);
- m->busnames = set_new(&string_hash_ops);
+ m->user_units = hashmap_new(&string_hash_ops);
+ m->session_units = hashmap_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)
+ 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(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;
+
+ manager_parse_config_file(m);
+
+ /* 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->suspend_state)
+ goto fail;
+ }
+ if (!m->hibernate_mode) {
+ m->hibernate_mode = strv_new("platform", "shutdown", NULL);
+ if (!m->hibernate_mode)
+ goto fail;
+ }
+ if (!m->hibernate_state) {
+ m->hibernate_state = strv_new("disk", NULL);
+ if (!m->hibernate_state)
+ goto fail;
+ }
+ if (!m->hybrid_sleep_mode) {
+ m->hybrid_sleep_mode = strv_new("suspend", "platform", "shutdown", NULL);
+ if (!m->hybrid_sleep_mode)
+ goto fail;
+ }
+ if (!m->hybrid_sleep_state) {
+ m->hybrid_sleep_state = strv_new("disk", NULL);
+ if (!m->hybrid_sleep_state)
+ goto fail;
+ }
+
+#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
+
m->udev = udev_new();
if (!m->udev)
goto fail;
return NULL;
}
-void manager_free(Manager *m) {
+static void manager_free(Manager *m) {
Session *session;
User *u;
Device *d;
hashmap_free(m->inhibitors);
hashmap_free(m->buttons);
- set_free_free(m->busnames);
+ hashmap_free(m->user_units);
+ hashmap_free(m->session_units);
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);
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)
+ (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);
+
free(m);
}
if (errno == ENOENT)
return 0;
- log_error_errno(errno, "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) {
if (errno == ENOENT)
return 0;
- log_error_errno(errno, "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) {
if (errno == ENOENT)
return 0;
- log_error_errno(errno, "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) {
if (errno == ENOENT)
return 0;
- log_error_errno(errno, "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) {
if (errno == ENOENT)
return 0;
- log_error_errno(errno, "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) {
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;
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;
return 0;
}
+#if 0 /// UNNEEDED by elogind
+static int manager_reserve_vt(Manager *m) {
+ _cleanup_free_ char *p = NULL;
+
+ assert(m);
+
+ if (m->reserve_vt <= 0)
+ return 0;
+
+ if (asprintf(&p, "/dev/tty%u", m->reserve_vt) < 0)
+ return log_oom();
+
+ m->reserve_vt_fd = open(p, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NONBLOCK);
+ if (m->reserve_vt_fd < 0) {
+
+ /* Don't complain on VT-less systems */
+ if (errno != ENOENT)
+ 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) {
+ 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;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
assert(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");
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',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Manager',"
+ "member='JobRemoved',"
+ "path='/org/freedesktop/systemd1'",
+ match_job_removed, m);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add match for JobRemoved: %m");
+
+ r = sd_bus_add_match(m->bus,
+ NULL,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Manager',"
+ "member='UnitRemoved',"
+ "path='/org/freedesktop/systemd1'",
+ match_unit_removed, m);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add match for UnitRemoved: %m");
+
+ r = sd_bus_add_match(m->bus,
+ NULL,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.DBus.Properties',"
+ "member='PropertiesChanged'",
+ match_properties_changed, m);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add match for PropertiesChanged: %m");
+
+ r = sd_bus_add_match(m->bus,
+ NULL,
+ "type='signal',"
+ "sender='org.freedesktop.systemd1',"
+ "interface='org.freedesktop.systemd1.Manager',"
+ "member='Reloading',"
+ "path='/org/freedesktop/systemd1'",
+ match_reloading, m);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add match for Reloading: %m");
+
+ r = sd_bus_call_method(
+ m->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "Subscribe",
+ &error,
+ NULL, NULL);
+ if (r < 0) {
+ 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)
return log_error_errno(r, "Failed to register name: %m");
- r = sd_bus_attach_event(m->bus, m->event, 0);
+ 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");
if (errno == ENOENT)
return 0;
- log_error_errno(errno, "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);
return r;
}
+ /* 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");
+ if (!m->udev_vcsa_monitor)
+ return -ENOMEM;
+
+ r = udev_monitor_filter_add_match_subsystem_devtype(m->udev_vcsa_monitor, "vc", NULL);
+ if (r < 0)
+ return r;
+
+ r = udev_monitor_enable_receiving(m->udev_vcsa_monitor);
+ if (r < 0)
+ return r;
+
+ r = sd_event_add_io(m->event, &m->udev_vcsa_event_source, udev_monitor_get_fd(m->udev_vcsa_monitor), EPOLLIN, manager_dispatch_vcsa_udev, 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;
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);
return 0;
}
-int manager_startup(Manager *m) {
+static int manager_startup(Manager *m) {
int r;
Seat *seat;
Session *session;
/* 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)
seat_start(seat);
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;
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) {
- 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) {
+#if 0 /// elogind parses its own config file
+
assert(m);
- return config_parse_many("/etc/systemd/logind.conf",
- CONF_DIRS_NULSTR("systemd/logind.conf"),
+ 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
}
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) {
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. */
- mkdir_label("/run/systemd", 0755);
+#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) {
goto finish;
}
- manager_parse_config_file(m);
-
r = manager_startup(m);
if (r < 0) {
log_error_errno(r, "Failed to fully start up daemon: %m");
goto finish;
}
- log_debug("logind running as pid "PID_FMT, getpid());
+ log_debug("elogind running as pid "PID_FMT, getpid());
sd_notify(false,
"READY=1\n"
r = manager_run(m);
- log_debug("logind stopped as pid "PID_FMT, getpid());
+ log_debug("elogind stopped as pid "PID_FMT, getpid());
finish:
sd_notify(false,
"STOPPING=1\n"
"STATUS=Shutting down...");
- if (m)
manager_free(m);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
~ianmdlvl / elogind.git / blobdiff