}
int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) {
- _cleanup_free_ char *unit = NULL;
- Session *s;
- int r;
-
assert(m);
assert(session);
- if (pid < 1)
- return -EINVAL;
-
- r = cg_pid_get_unit(pid, &unit);
- if (r < 0)
- return 0;
-
- s = hashmap_get(m->session_units, unit);
- if (!s)
- return 0;
-
- *session = s;
- return 1;
+ /* Without cgroups, we have no way to map from pid to
+ session. */
+ return 0;
}
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)
- return 0;
-
- u = hashmap_get(m->user_units, unit);
- if (!u)
- return 0;
-
- *user = u;
- return 1;
+ /* Without cgroups, we have no way to map from pid to
+ user. */
+ return 0;
}
int manager_get_idle_hint(Manager *m, dual_timestamp *t) {
return r;
}
-int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
- const char *path, *result, *unit;
- Manager *m = userdata;
- Session *session;
- uint32_t id;
- User *user;
- int r;
-
- assert(bus);
- assert(message);
- assert(m);
-
- r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result);
- if (r < 0) {
- bus_log_parse_error(r);
- return r;
- }
-
- if (m->action_job && streq(m->action_job, path)) {
- log_info("Operation finished.");
-
- /* Tell people that they now may take a lock again */
- send_prepare_for(m, m->action_what, false);
-
- free(m->action_job);
- m->action_job = NULL;
- m->action_unit = NULL;
- m->action_what = 0;
- return 0;
- }
-
- session = hashmap_get(m->session_units, unit);
- if (session) {
-
- if (streq_ptr(path, session->scope_job)) {
- free(session->scope_job);
- session->scope_job = NULL;
- }
-
- session_jobs_reply(session, unit, result);
-
- session_save(session);
- session_add_to_gc_queue(session);
- }
-
- user = hashmap_get(m->user_units, unit);
- if (user) {
-
- if (streq_ptr(path, user->service_job)) {
- free(user->service_job);
- user->service_job = NULL;
- }
-
- if (streq_ptr(path, user->slice_job)) {
- free(user->slice_job);
- user->slice_job = NULL;
- }
-
- LIST_FOREACH(sessions_by_user, session, user->sessions) {
- session_jobs_reply(session, unit, result);
- }
-
- user_save(user);
- user_add_to_gc_queue(user);
- }
-
- return 0;
-}
-
-int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
- const char *path, *unit;
- Manager *m = userdata;
- Session *session;
- User *user;
- int r;
-
- assert(bus);
- assert(message);
- assert(m);
-
- r = sd_bus_message_read(message, "so", &unit, &path);
- if (r < 0) {
- bus_log_parse_error(r);
- return r;
- }
-
- session = hashmap_get(m->session_units, unit);
- if (session)
- session_add_to_gc_queue(session);
-
- user = hashmap_get(m->user_units, unit);
- if (user)
- user_add_to_gc_queue(user);
-
- return 0;
-}
-
-int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
- _cleanup_free_ char *unit = NULL;
- Manager *m = userdata;
- const char *path;
- Session *session;
- User *user;
- int r;
-
- assert(bus);
- assert(message);
- assert(m);
-
- path = sd_bus_message_get_path(message);
- if (!path)
- return 0;
-
- r = unit_name_from_dbus_path(path, &unit);
- if (r == -EINVAL) /* not a unit */
- return 0;
- if (r < 0)
- return r;
-
- session = hashmap_get(m->session_units, unit);
- if (session)
- session_add_to_gc_queue(session);
-
- user = hashmap_get(m->user_units, unit);
- if (user)
- user_add_to_gc_queue(user);
-
- return 0;
-}
-
-int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
- Manager *m = userdata;
- Session *session;
- Iterator i;
- int b, r;
-
- assert(bus);
-
- r = sd_bus_message_read(message, "b", &b);
- if (r < 0) {
- bus_log_parse_error(r);
- return r;
- }
-
- if (b)
- return 0;
-
- /* systemd finished reloading, let's recheck all our sessions */
- log_debug("System manager has been reloaded, rechecking sessions...");
-
- HASHMAP_FOREACH(session, m->sessions, i)
- session_add_to_gc_queue(session);
-
- return 0;
-}
-
-int match_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
- const char *name, *old, *new;
- Manager *m = userdata;
- Session *session;
- Iterator i;
- int r;
-
-
- char *key;
-
- r = sd_bus_message_read(message, "sss", &name, &old, &new);
- if (r < 0) {
- bus_log_parse_error(r);
- return r;
- }
-
- if (isempty(old) || !isempty(new))
- return 0;
-
- key = set_remove(m->busnames, (char*) old);
- if (!key)
- return 0;
-
- /* Drop all controllers owned by this name */
-
- free(key);
-
- HASHMAP_FOREACH(session, m->sessions, i)
- if (session_is_controller(session, old))
- session_drop_controller(session);
-
- return 0;
-}
-
int manager_send_changed(Manager *manager, const char *property, ...) {
char **l;
if (!s->create_message)
return 0;
- if (!sd_bus_error_is_set(error) && (s->scope_job || s->user->service_job))
- return 0;
-
c = s->create_message;
s->create_message = NULL;
LIST_REMOVE(sessions_by_seat, s->seat->sessions, s);
}
- if (s->scope) {
- hashmap_remove(s->manager->session_units, s->scope);
- free(s->scope);
- }
-
- free(s->scope_job);
-
sd_bus_message_unref(s->create_message);
free(s->tty);
if (s->class >= 0)
fprintf(f, "CLASS=%s\n", session_class_to_string(s->class));
- if (s->scope)
- fprintf(f, "SCOPE=%s\n", s->scope);
- if (s->scope_job)
- fprintf(f, "SCOPE_JOB=%s\n", s->scope_job);
-
if (s->fifo_path)
fprintf(f, "FIFO=%s\n", s->fifo_path);
r = parse_env_file(s->state_file, NEWLINE,
"REMOTE", &remote,
- "SCOPE", &s->scope,
- "SCOPE_JOB", &s->scope_job,
"FIFO", &s->fifo_path,
"SEAT", &seat,
"TTY", &s->tty,
return 0;
}
-static int session_start_scope(Session *s) {
- int r;
-
- assert(s);
- assert(s->user);
- assert(s->user->slice);
-
- if (!s->scope) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_free_ char *description = NULL;
- char *scope, *job = NULL;
-
- description = strjoin("Session ", s->id, " of user ", s->user->name, NULL);
- if (!description)
- return log_oom();
-
- scope = strjoin("session-", s->id, ".scope", NULL);
- if (!scope)
- return log_oom();
-
- r = manager_start_scope(s->manager, scope, s->leader, s->user->slice, description, "logind.service", "systemd-user-sessions.service", &error, &job);
- if (r < 0) {
- log_error("Failed to start session scope %s: %s %s",
- scope, bus_error_message(&error, r), error.name);
- free(scope);
- return r;
- } else {
- s->scope = scope;
-
- free(s->scope_job);
- s->scope_job = job;
- }
- }
-
- if (s->scope)
- hashmap_put(s->manager->session_units, s->scope, s);
-
- return 0;
-}
-
int session_start(Session *s) {
int r;
if (r < 0)
return r;
- /* Create cgroup */
-#if 0
- r = session_start_scope(s);
- if (r < 0)
- return r;
-#endif
-
log_struct(s->class == SESSION_BACKGROUND ? LOG_DEBUG : LOG_INFO,
LOG_MESSAGE_ID(SD_MESSAGE_SESSION_START),
"SESSION_ID=%s", s->id,
return 0;
}
-static int session_stop_scope(Session *s, bool force) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- char *job = NULL;
- int r;
-
- assert(s);
-
- if (!s->scope)
- return 0;
-
- if (force || manager_shall_kill(s->manager, s->user->name)) {
- r = manager_stop_unit(s->manager, s->scope, &error, &job);
- if (r < 0) {
- log_error("Failed to stop session scope: %s", bus_error_message(&error, r));
- return r;
- }
-
- free(s->scope_job);
- s->scope_job = job;
- } else {
- r = manager_abandon_scope(s->manager, s->scope, &error);
- if (r < 0) {
- log_error("Failed to abandon session scope: %s", bus_error_message(&error, r));
- return r;
- }
- }
-
- return 0;
-}
-
int session_stop(Session *s, bool force) {
- int r;
+ int r = 0;
assert(s);
/* We are going down, don't care about FIFOs anymore */
session_remove_fifo(s);
- /* Kill cgroup */
- r = session_stop_scope(s, force);
-
s->stopping = true;
user_elect_display(s->user);
return true;
}
- if (s->scope_job && manager_job_is_active(s->manager, s->scope_job))
- return true;
-
- if (s->scope && manager_unit_is_active(s->manager, s->scope))
- return true;
-
return false;
}
if (s->stopping || s->timer_event_source)
return SESSION_CLOSING;
- if (s->scope_job || s->fifo_fd < 0)
+ if (s->fifo_fd < 0)
return SESSION_OPENING;
if (session_is_active(s))
int session_kill(Session *s, KillWho who, int signo) {
assert(s);
- if (!s->scope)
- return -ESRCH;
-
- return manager_kill_unit(s->manager, s->scope, who, signo, NULL);
+ /* No way to kill the session without cgroups. */
+ return -ESRCH;
}
static int session_open_vt(Session *s) {
char *service;
char *desktop;
+ /* Always NULL. */
char *scope;
- char *scope_job;
Seat *seat;
unsigned int vtnr;
while (u->sessions)
session_free(u->sessions);
- if (u->slice) {
- hashmap_remove(u->manager->user_units, u->slice);
- free(u->slice);
- }
-
- if (u->service) {
- hashmap_remove(u->manager->user_units, u->service);
- free(u->service);
- }
-
- free(u->slice_job);
- free(u->service_job);
-
free(u->runtime_path);
hashmap_remove(u->manager->users, UID_TO_PTR(u->uid));
if (u->runtime_path)
fprintf(f, "RUNTIME=%s\n", u->runtime_path);
- if (u->service)
- fprintf(f, "SERVICE=%s\n", u->service);
- if (u->service_job)
- fprintf(f, "SERVICE_JOB=%s\n", u->service_job);
-
- if (u->slice)
- fprintf(f, "SLICE=%s\n", u->slice);
- if (u->slice_job)
- fprintf(f, "SLICE_JOB=%s\n", u->slice_job);
-
if (u->display)
fprintf(f, "DISPLAY=%s\n", u->display->id);
r = parse_env_file(u->state_file, NEWLINE,
"RUNTIME", &u->runtime_path,
- "SERVICE", &u->service,
- "SERVICE_JOB", &u->service_job,
- "SLICE", &u->slice,
- "SLICE_JOB", &u->slice_job,
"DISPLAY", &display,
"REALTIME", &realtime,
"MONOTONIC", &monotonic,
return r;
}
-static int user_start_slice(User *u) {
- char *job;
- int r;
-
- assert(u);
-
- if (!u->slice) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- char lu[DECIMAL_STR_MAX(uid_t) + 1], *slice;
- sprintf(lu, UID_FMT, u->uid);
-
- r = build_subslice(SPECIAL_USER_SLICE, lu, &slice);
- if (r < 0)
- return r;
-
- r = manager_start_unit(u->manager, slice, &error, &job);
- if (r < 0) {
- log_error("Failed to start user slice: %s", bus_error_message(&error, r));
- free(slice);
- } else {
- u->slice = slice;
-
- free(u->slice_job);
- u->slice_job = job;
- }
- }
-
- if (u->slice)
- hashmap_put(u->manager->user_units, u->slice, u);
-
- return 0;
-}
-
-static int user_start_service(User *u) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- char *job;
- int r;
-
- assert(u);
-
- if (!u->service) {
- char lu[DECIMAL_STR_MAX(uid_t) + 1], *service;
- sprintf(lu, UID_FMT, u->uid);
-
- service = unit_name_build("user", lu, ".service");
- if (!service)
- return log_oom();
-
- r = manager_start_unit(u->manager, service, &error, &job);
- if (r < 0) {
- log_error("Failed to start user service: %s", bus_error_message(&error, r));
- free(service);
- } else {
- u->service = service;
-
- free(u->service_job);
- u->service_job = job;
- }
- }
-
- if (u->service)
- hashmap_put(u->manager->user_units, u->service, u);
-
- return 0;
-}
-
int user_start(User *u) {
int r;
if (r < 0)
return r;
-#if 0
- /* Create cgroup */
- r = user_start_slice(u);
- if (r < 0)
- return r;
-
- /* Spawn user systemd */
- r = user_start_service(u);
- if (r < 0)
- return r;
-#endif
-
if (!dual_timestamp_is_set(&u->timestamp))
dual_timestamp_get(&u->timestamp);
return 0;
}
-static int user_stop_slice(User *u) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- char *job;
- int r;
-
- assert(u);
-
- if (!u->slice)
- return 0;
-
- r = manager_stop_unit(u->manager, u->slice, &error, &job);
- if (r < 0) {
- log_error("Failed to stop user slice: %s", bus_error_message(&error, r));
- return r;
- }
-
- free(u->slice_job);
- u->slice_job = job;
-
- return r;
-}
-
-static int user_stop_service(User *u) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- char *job;
- int r;
-
- assert(u);
-
- if (!u->service)
- return 0;
-
- r = manager_stop_unit(u->manager, u->service, &error, &job);
- if (r < 0) {
- log_error("Failed to stop user service: %s", bus_error_message(&error, r));
- return r;
- }
-
- free(u->service_job);
- u->service_job = job;
-
- return r;
-}
-
static int user_remove_runtime_path(User *u) {
int r;
r = k;
}
- /* Kill systemd */
- k = user_stop_service(u);
- if (k < 0)
- r = k;
-
- /* Kill cgroup */
- k = user_stop_slice(u);
- if (k < 0)
- r = k;
-
u->stopping = true;
user_save(u);
if (user_check_linger_file(u) > 0)
return true;
- if (u->slice_job && manager_job_is_active(u->manager, u->slice_job))
- return true;
-
- if (u->service_job && manager_job_is_active(u->manager, u->service_job))
- return true;
-
return false;
}
if (u->stopping)
return USER_CLOSING;
- if (u->slice_job || u->service_job)
- return USER_OPENING;
-
if (u->sessions) {
bool all_closing = true;
int user_kill(User *u, int signo) {
assert(u);
- if (!u->slice)
- return -ESRCH;
-
- return manager_kill_unit(u->manager, u->slice, KILL_ALL, signo, NULL);
+ /* FIXME: No way to kill a user without systemd. */
+ return -ESRCH;
}
void user_elect_display(User *u) {
char *state_file;
char *runtime_path;
+ /* These are always NULL, and here just for logind-user-dbus.c
+ to easily provide a NULL value for the user's service and
+ slice properties. */
char *service;
char *slice;
- char *service_job;
- char *slice_job;
-
Session *display;
dual_timestamp timestamp;
m->inhibitors = hashmap_new(&string_hash_ops);
m->buttons = hashmap_new(&string_hash_ops);
- m->user_units = hashmap_new(&string_hash_ops);
- m->session_units = hashmap_new(&string_hash_ops);
-
m->busnames = set_new(&string_hash_ops);
- 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->busnames)
goto fail;
m->kill_exclude_users = strv_new("root", NULL);
hashmap_free(m->inhibitors);
hashmap_free(m->buttons);
- hashmap_free(m->user_units);
- hashmap_free(m->session_units);
-
set_free_free(m->busnames);
sd_event_source_unref(m->idle_action_event_source);
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");
-
- 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_warning("Failed to subscribe to org.freedesktop.systemd1.Manager: %s",
- bus_error_message(&error, r));
- }
-
r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0);
if (r < 0)
return log_error_errno(r, "Failed to register name: %m");
unsigned long session_counter;
unsigned long inhibit_counter;
- Hashmap *session_units;
- Hashmap *user_units;
-
usec_t inhibit_delay_max;
/* If an action is currently being executed or is delayed,
extern const sd_bus_vtable manager_vtable[];
-int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
-int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
-int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
-int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
-int match_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error);
-
int bus_manager_shutdown_or_sleep_now_or_later(Manager *m, const char *unit_name, InhibitWhat w, sd_bus_error *error);
int manager_send_changed(Manager *manager, const char *property, ...) _sentinel_;
~ianmdlvl / elogind.git / commitdiff