logind: implement SetUserLinger() D-Bus call

[elogind.git] / src / logind-user.c

diff --git a/src/logind-user.c b/src/logind-user.c
index 7d6df8db7a8d6989be36b4b70a44db5d6c0fc7d2..177e88200a9f49d4309a1dd621eb496faffe2aa5 100644 (file)
--- a/src/logind-user.c
+++ b/src/logind-user.c
@@ -45,7 +45,7 @@ User* user_new(Manager *m, uid_t uid, gid_t gid, const char *name) {
                 return NULL;
         }
 
-        if (asprintf(&u->state_file, "/run/systemd/user/%lu", (unsigned long) uid) < 0) {
+        if (asprintf(&u->state_file, "/run/systemd/users/%lu", (unsigned long) uid) < 0) {
                 free(u->name);
                 free(u);
                 return NULL;
@@ -94,7 +94,10 @@ int user_save(User *u) {
         assert(u);
         assert(u->state_file);
 
-        r = safe_mkdir("/run/systemd/user", 0755, 0, 0);
+        if (!u->started)
+                return 0;
+
+        r = safe_mkdir("/run/systemd/users", 0755, 0, 0);
         if (r < 0)
                 goto finish;
 
@@ -152,11 +155,11 @@ finish:
 int user_load(User *u) {
         int r;
         char *display = NULL;
-        Session *s;
+        Session *s = NULL;
 
         assert(u);
 
-        r = parse_env_file(u->state_file, "r",
+        r = parse_env_file(u->state_file, NEWLINE,
                            "CGROUP", &u->cgroup_path,
                            "RUNTIME", &u->runtime_path,
                            "SERVICE", &u->service,
@@ -172,10 +175,12 @@ int user_load(User *u) {
                 return r;
         }
 
-        s = hashmap_get(u->manager->sessions, display);
-        free(display);
+        if (display) {
+                s = hashmap_get(u->manager->sessions, display);
+                free(display);
+        }
 
-        if (s && s->display && x11_display_is_local(s->display))
+        if (s && s->display && display_is_local(s->display))
                 u->display = s;
 
         return r;
@@ -232,9 +237,9 @@ static int user_create_cgroup(User *u) {
 
         r = cg_create(SYSTEMD_CGROUP_CONTROLLER, p);
         if (r < 0) {
+                log_error("Failed to create cgroup "SYSTEMD_CGROUP_CONTROLLER":%s: %s", p, strerror(-r));
                 free(p);
                 u->cgroup_path = NULL;
-                log_error("Failed to create cgroup "SYSTEMD_CGROUP_CONTROLLER":%s: %s", p, strerror(-r));
                 return r;
         }
 
@@ -260,6 +265,11 @@ int user_start(User *u) {
 
         assert(u);
 
+        if (u->started)
+                return 0;
+
+        log_info("New user %s logged in.", u->name);
+
         /* Make XDG_RUNTIME_DIR */
         r = user_mkdir_runtime_path(u);
         if (r < 0)
@@ -275,10 +285,14 @@ int user_start(User *u) {
         if (r < 0)
                 return r;
 
+        dual_timestamp_get(&u->timestamp);
+
+        u->started = true;
+
         /* Save new user data */
         user_save(u);
 
-        dual_timestamp_get(&u->timestamp);
+        user_send_signal(u, true);
 
         return 0;
 }
@@ -295,7 +309,16 @@ static int user_stop_service(User *u) {
 static int user_shall_kill(User *u) {
         assert(u);
 
-        return u->manager->kill_user_processes;
+        if (!u->manager->kill_user_processes)
+                return false;
+
+        if (strv_contains(u->manager->kill_exclude_users, u->name))
+                return false;
+
+        if (strv_isempty(u->manager->kill_only_users))
+                return true;
+
+        return strv_contains(u->manager->kill_only_users, u->name);
 }
 
 static int user_kill_cgroup(User *u) {
@@ -359,6 +382,9 @@ int user_stop(User *u) {
         int r = 0, k;
         assert(u);
 
+        if (u->started)
+                log_info("User %s logged out.", u->name);
+
         LIST_FOREACH(sessions_by_user, s, u->sessions) {
                 k = session_stop(s);
                 if (k < 0)
@@ -383,9 +409,50 @@ int user_stop(User *u) {
         unlink(u->state_file);
         user_add_to_gc_queue(u);
 
+        if (u->started)
+                user_send_signal(u, false);
+
+        u->started = false;
+
         return r;
 }
 
+int user_get_idle_hint(User *u, dual_timestamp *t) {
+        Session *s;
+        bool idle_hint = true;
+        dual_timestamp ts = { 0, 0 };
+
+        assert(u);
+
+        LIST_FOREACH(sessions_by_user, s, u->sessions) {
+                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;
+}
+
 int user_check_gc(User *u) {
         int r;
         char *p;