chiark / gitweb /
Prep v234: Apply missing upstream fixes in src/login (3/6)
[elogind.git] / src / login / logind-session.c
index d67eb02..28784a8 100644 (file)
@@ -33,6 +33,7 @@
 #include "bus-error.h"
 #include "bus-util.h"
 #include "escape.h"
+#include "extract-word.h"
 #include "fd-util.h"
 #include "fileio.h"
 #include "format-util.h"
@@ -154,6 +155,18 @@ void session_set_user(Session *s, User *u) {
         LIST_PREPEND(sessions_by_user, u->sessions, s);
 }
 
+static void session_save_devices(Session *s, FILE *f) {
+        SessionDevice *sd;
+        Iterator i;
+
+        if (!hashmap_isempty(s->devices)) {
+                fprintf(f, "DEVICES=");
+                HASHMAP_FOREACH(sd, s->devices, i)
+                        fprintf(f, "%u:%u ", major(sd->dev), minor(sd->dev));
+                fprintf(f, "\n");
+        }
+}
+
 int session_save(Session *s) {
         _cleanup_free_ char *temp_path = NULL;
         _cleanup_fclose_ FILE *f = NULL;
@@ -285,8 +298,10 @@ int session_save(Session *s) {
                         s->timestamp.realtime,
                         s->timestamp.monotonic);
 
-        if (s->controller)
+        if (s->controller) {
                 fprintf(f, "CONTROLLER=%s\n", s->controller);
+                session_save_devices(s, f);
+        }
 
         r = fflush_and_check(f);
         if (r < 0)
@@ -308,6 +323,43 @@ fail:
         return log_error_errno(r, "Failed to save session data %s: %m", s->state_file);
 }
 
+static int session_load_devices(Session *s, const char *devices) {
+        const char *p;
+        int r = 0;
+
+        assert(s);
+
+        for (p = devices;;) {
+                _cleanup_free_ char *word = NULL;
+                SessionDevice *sd;
+                dev_t dev;
+                int k;
+
+                k = extract_first_word(&p, &word, NULL, 0);
+                if (k == 0)
+                        break;
+                if (k < 0) {
+                        r = k;
+                        break;
+                }
+
+                k = parse_dev(word, &dev);
+                if (k < 0) {
+                        r = k;
+                        continue;
+                }
+
+                /* The file descriptors for loaded devices will be reattached later. */
+                k = session_device_new(s, dev, false, &sd);
+                if (k < 0)
+                        r = k;
+        }
+
+        if (r < 0)
+                log_error_errno(r, "Loading session devices for session %s failed: %m", s->id);
+
+        return r;
+}
 
 int session_load(Session *s) {
         _cleanup_free_ char *remote = NULL,
@@ -321,7 +373,9 @@ int session_load(Session *s) {
                 *uid = NULL,
                 *realtime = NULL,
                 *monotonic = NULL,
-                *controller = NULL;
+                *controller = NULL,
+                *active = NULL,
+                *devices = NULL;
 
         int k, r;
 
@@ -351,6 +405,8 @@ int session_load(Session *s) {
                            "REALTIME",       &realtime,
                            "MONOTONIC",      &monotonic,
                            "CONTROLLER",     &controller,
+                           "ACTIVE",         &active,
+                           "DEVICES",        &devices,
                            NULL);
 
         if (r < 0)
@@ -453,10 +509,17 @@ int session_load(Session *s) {
         if (monotonic)
                 timestamp_deserialize(monotonic, &s->timestamp.monotonic);
 
+        if (active) {
+                k = parse_boolean(active);
+                if (k >= 0)
+                        s->was_active = k;
+        }
+
         if (controller) {
-                if (bus_name_has_owner(s->manager->bus, controller, NULL) > 0)
+                if (bus_name_has_owner(s->manager->bus, controller, NULL) > 0) {
                         session_set_controller(s, controller, false, false);
-                else
+                        session_load_devices(s, devices);
+                } else
                         session_restore_vt(s);
         }