X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flogin%2Flogind-user-dbus.c;h=20ea2fbdc415882b28461ab7a70db53378b25921;hb=bf2098e9e4837573d84dd4949b9c28a7372c93b9;hp=717740ad044b24ef187088ade44fa29bc743d546;hpb=309a29dfd24f4175de334ca1593e3fe2436ab082;p=elogind.git

diff --git a/src/login/logind-user-dbus.c b/src/login/logind-user-dbus.c
index 717740ad0..20ea2fbdc 100644
--- a/src/login/logind-user-dbus.c
+++ b/src/login/logind-user-dbus.c
@@ -26,6 +26,7 @@
 #include "bus-util.h"
 #include "logind.h"
 #include "logind-user.h"
+#include "formats-util.h"
 
 static int property_get_display(
                 sd_bus *bus,
@@ -102,11 +103,7 @@ static int property_get_sessions(
 
         }
 
-        r = sd_bus_message_close_container(reply);
-        if (r < 0)
-                return r;
-
-        return 1;
+        return sd_bus_message_close_container(reply);
 }
 
 static int property_get_idle_hint(
@@ -137,7 +134,7 @@ static int property_get_idle_since_hint(
                 sd_bus_error *error) {
 
         User *u = userdata;
-        dual_timestamp t;
+        dual_timestamp t = DUAL_TIMESTAMP_NULL;
         uint64_t k;
 
         assert(bus);
@@ -171,14 +168,27 @@ static int property_get_linger(
         return sd_bus_message_append(reply, "b", r > 0);
 }
 
-static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+int bus_user_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
         User *u = userdata;
         int r;
 
-        assert(bus);
         assert(message);
         assert(u);
 
+        r = bus_verify_polkit_async(
+                        message,
+                        CAP_KILL,
+                        "org.freedesktop.login1.manage",
+                        NULL,
+                        false,
+                        u->uid,
+                        &u->manager->polkit_registry,
+                        error);
+        if (r < 0)
+                return r;
+        if (r == 0)
+                return 1; /* Will call us back */
+
         r = user_stop(u, true);
         if (r < 0)
                 return r;
@@ -186,15 +196,28 @@ static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata
         return sd_bus_reply_method_return(message, NULL);
 }
 
-static int method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+int bus_user_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) {
         User *u = userdata;
         int32_t signo;
         int r;
 
-        assert(bus);
         assert(message);
         assert(u);
 
+        r = bus_verify_polkit_async(
+                        message,
+                        CAP_KILL,
+                        "org.freedesktop.login1.manage",
+                        NULL,
+                        false,
+                        u->uid,
+                        &u->manager->polkit_registry,
+                        error);
+        if (r < 0)
+                return r;
+        if (r == 0)
+                return 1; /* Will call us back */
+
         r = sd_bus_message_read(message, "i", &signo);
         if (r < 0)
                 return r;
@@ -227,8 +250,8 @@ const sd_bus_vtable user_vtable[] = {
         SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
         SD_BUS_PROPERTY("Linger", "b", property_get_linger, 0, 0),
 
-        SD_BUS_METHOD("Terminate", NULL, NULL, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
-        SD_BUS_METHOD("Kill", "i", NULL, method_kill, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+        SD_BUS_METHOD("Terminate", NULL, NULL, bus_user_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
+        SD_BUS_METHOD("Kill", "i", NULL, bus_user_method_kill, SD_BUS_VTABLE_UNPRIVILEGED),
 
         SD_BUS_VTABLE_END
 };
@@ -270,7 +293,7 @@ int user_object_find(sd_bus *bus, const char *path, const char *interface, void
         if (r < 0)
                 return 0;
 
-        user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
+        user = hashmap_get(m->users, UID_TO_PTR(uid));
         if (!user)
                 return 0;
 
@@ -291,6 +314,7 @@ char *user_bus_path(User *u) {
 
 int user_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
         _cleanup_strv_free_ char **l = NULL;
+        sd_bus_message *message;
         Manager *m = userdata;
         User *user;
         Iterator i;
@@ -312,9 +336,24 @@ int user_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***
                         return r;
         }
 
-        r = strv_extend(&l, "/org/freedesktop/login1/user/self");
-        if (r < 0)
-                return r;
+        message = sd_bus_get_current_message(bus);
+        if (message) {
+                _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+                uid_t uid;
+
+                r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
+                if (r >= 0) {
+                        r = sd_bus_creds_get_owner_uid(creds, &uid);
+                        if (r >= 0) {
+                                user = hashmap_get(m->users, UID_TO_PTR(uid));
+                                if (user) {
+                                        r = strv_extend(&l, "/org/freedesktop/login1/user/self");
+                                        if (r < 0)
+                                                return r;
+                                }
+                        }
+                }
+        }
 
         *nodes = l;
         l = NULL;