[lib-fix] moved dbus_connection_get_unix_user from daemon to library

This function must be declared at library code even if enable_kdbus_transport is set
(same as dbus_connection_get_unix_process_id)

7 files changed, 259 insertions, 303 deletions

diff --git a/bus/driver.c b/bus/driver.c
index ac120729..9604cad3 100644
--- a/bus/driver.c
+++ b/bus/driver.c
@@ -1521,32 +1521,32 @@ bus_driver_handle_get_connection_unix_user (DBusConnection *connection,
     goto oom;
 
 #ifdef ENABLE_KDBUS_TRANSPORT
-  if(bus_context_is_kdbus(bus_transaction_get_context (transaction)))
-  {
-	  const char* name;
+  if (bus_context_is_kdbus (bus_transaction_get_context (transaction)))
+    {
+      const char* name;
 
-	  if(!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
-		  goto failed;
-	  if(!kdbus_get_unix_user(connection, name, &uid, error))
-		  goto failed;
-  }
+      if (!dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
+        goto failed;
+      if (!kdbus_connection_get_unix_user (connection, name, &uid, error))
+        goto failed;
+    }
   else
 #endif
-  {
-	  conn = bus_driver_get_conn_helper (connection, message, "UID", &service,
-                                     error);
+    {
+      conn = bus_driver_get_conn_helper (connection, message, "UID", &service,
+                                         error);
 
-	  if (conn == NULL)
-		  goto failed;
+      if (conn == NULL)
+        goto failed;
 
-	  if (!dbus_connection_get_unix_user (conn, &uid))
-		{
-		  dbus_set_error (error,
-						  DBUS_ERROR_FAILED,
-						  "Could not determine UID for '%s'", service);
-		  goto failed;
-		}
-  }
+      if (!dbus_connection_get_unix_user (conn, &uid))
+        {
+          dbus_set_error (error,
+                          DBUS_ERROR_FAILED,
+                          "Could not determine UID for '%s'", service);
+          goto failed;
+        }
+    }
 
   uid32 = uid;
   if (! dbus_message_append_args (reply,
@@ -1589,31 +1589,31 @@ bus_driver_handle_get_connection_unix_process_id (DBusConnection *connection,
   if (reply == NULL)
     goto oom;
 #ifdef ENABLE_KDBUS_TRANSPORT
-  if(bus_context_is_kdbus(bus_transaction_get_context (transaction)))
+  if (bus_context_is_kdbus (bus_transaction_get_context (transaction)))
     {
       const char* name;
 
-      if(!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
+      if (!dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
         goto failed;
-      if(!kdbus_get_connection_unix_process_id(connection, name, &pid, error))
+      if (!kdbus_connection_get_unix_process_id (connection, name, &pid, error))
         goto failed;
     }
-    else
+  else
 #endif
-  {
-    conn = bus_driver_get_conn_helper (connection, message, "PID", &service,
-                       error);
-    if (conn == NULL)
-      goto failed;
-
-    if (!dbus_connection_get_unix_process_id (conn, &pid))
     {
-      dbus_set_error (error,
-                DBUS_ERROR_UNIX_PROCESS_ID_UNKNOWN,
-                "Could not determine PID for '%s'", service);
-      goto failed;
+      conn = bus_driver_get_conn_helper (connection, message, "PID", &service,
+                                         error);
+      if (conn == NULL)
+        goto failed;
+
+      if (!dbus_connection_get_unix_process_id (conn, &pid))
+        {
+          dbus_set_error (error,
+                          DBUS_ERROR_UNIX_PROCESS_ID_UNKNOWN,
+                          "Could not determine PID for '%s'", service);
+          goto failed;
+        }
     }
-  }
 
   pid32 = pid;
   if (! dbus_message_append_args (reply,
@@ -1805,27 +1805,27 @@ bus_driver_handle_get_connection_credentials (DBusConnection *connection,
 #ifdef ENABLE_KDBUS_TRANSPORT
   }
   else
-  {
-	  const char* name;
+    {
+      const char* name;
 
-	  if(!dbus_message_get_args(message, NULL, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
-		  goto failed;
-	  if(kdbus_get_connection_unix_process_id(connection, name, &ulong_val, error))
-	  {
-		  if (!_dbus_asv_add_uint32 (&array_iter, "ProcessID", ulong_val))
-			goto oom;
-	  }
-	  else
-		  goto failed;
+      if (!dbus_message_get_args (message, NULL, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID))
+        goto failed;
+      if (kdbus_connection_get_unix_process_id (connection, name, &ulong_val, error))
+        {
+          if (!_dbus_asv_add_uint32 (&array_iter, "ProcessID", ulong_val))
+            goto oom;
+        }
+      else
+        goto failed;
 
-	  if(kdbus_get_unix_user(connection, name, &ulong_val, error))
-	  {
-		  if (!_dbus_asv_add_uint32 (&array_iter, "UnixUserID", ulong_val))
-			goto oom;
-	  }
-	  else
-		  goto failed;
-  }
+      if (kdbus_connection_get_unix_user (connection, name, &ulong_val, error))
+        {
+          if (!_dbus_asv_add_uint32 (&array_iter, "UnixUserID", ulong_val))
+            goto oom;
+        }
+      else
+        goto failed;
+   }
 #endif
 
   if (!_dbus_asv_close (&reply_iter, &array_iter))
diff --git a/bus/kdbus-d.c b/bus/kdbus-d.c
index db97c253..a0975fda 100644
--- a/bus/kdbus-d.c
+++ b/bus/kdbus-d.c
@@ -23,14 +23,11 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
-
 #include <dbus/dbus-connection-internal.h>
 #include "kdbus-d.h"
-#define KDBUS_FOR_SBB
 #include <dbus/kdbus.h>
 #include <dbus/dbus-bus.h>
 #include "dispatch.h"
-#include <dbus/kdbus-common.h>
 #include <dbus/dbus-transport.h>
 #include <dbus/dbus-transport-kdbus.h>
 #include "connection.h"
@@ -212,101 +209,6 @@ dbus_bool_t remove_match_kdbus (DBusTransport* transport, __u64 id)
   }
 }
 
-/**
- * Performs kdbus query of id of the given name
- *
- * @param name name to query for
- * @param transport transport
- * @param pInfo nameInfo structure address to store info about the name
- * @return 0 on success, -errno if failed
- */
-int kdbus_NameQuery(const char* name, DBusTransport* transport, struct nameInfo* pInfo)
-{
-  struct kdbus_cmd_conn_info *cmd;
-  int ret;
-  int fd;
-  uint64_t size;
-  __u64 id = 0;
-
-  memset(pInfo, 0, sizeof(struct nameInfo));
-
-  if(!_dbus_transport_get_socket_fd(transport, &fd))
-    return -EPERM;
-
-  size = sizeof(struct kdbus_cmd_conn_info);
-  if((name[0] == ':') && (name[1] == '1') && (name[2] == '.'))  /* if name starts with ":1." it is a unique name and should be send as number */
-     id = strtoull(&name[3], NULL, 10);
-  if(id == 0)
-    size += strlen(name) + 1;
-
-  cmd = alloca(size);
-  if (!cmd)
-  {
-    _dbus_verbose("Error allocating memory for: %s,%s\n", _dbus_strerror (errno), _dbus_error_from_errno (errno));
-    return -errno;
-  }
-
-  memset(cmd, 0, sizeof(struct kdbus_cmd_conn_info));
-  cmd->size = size;
-  cmd->id = id;
-  if(id == 0)
-    memcpy(cmd->name, name, strlen(name) + 1);
-
-  again:
-  ret = ioctl(fd, KDBUS_CMD_CONN_INFO, cmd);
-  if (ret < 0)
-  {
-    if(errno == EINTR)
-      goto again;
-    pInfo->uniqueId = 0;
-    return -errno;
-  }
-  else
-  {
-    struct kdbus_conn_info *info;
-    struct kdbus_item *item;
-
-    info = (struct kdbus_conn_info *)((char*)dbus_transport_get_pool_pointer(transport) + cmd->offset);
-    pInfo->uniqueId = info->id;
-
-    item = info->items;
-    while((uint8_t *)(item) < (uint8_t *)(info) + info->size)
-    {
-      if(item->type == KDBUS_ITEM_CREDS)
-        {
-          pInfo->userId = item->creds.uid;
-          pInfo->processId = item->creds.pid;
-        }
-
-      if(item->type == KDBUS_ITEM_SECLABEL)
-        {
-          pInfo->sec_label_len = item->size - KDBUS_ITEM_HEADER_SIZE - 1;
-          if(pInfo->sec_label_len != 0)
-            {
-              pInfo->sec_label = malloc(pInfo->sec_label_len);
-              if(pInfo->sec_label == NULL)
-                ret = -1;
-              else
-                memcpy(pInfo->sec_label, item->data, pInfo->sec_label_len);
-            }
-        }
-
-      item = KDBUS_PART_NEXT(item);
-    }
-
-    again2:
-    if (ioctl(fd, KDBUS_CMD_FREE, &cmd->offset) < 0)
-    {
-      if(errno == EINTR)
-        goto again2;
-      _dbus_verbose("kdbus error freeing pool: %d (%m)\n", errno);
-      return -errno;
-    }
-  }
-
-  return ret;
-}
-
 /*
  * Creates kdbus bus of given type.
  */
@@ -366,6 +268,7 @@ char* make_kdbus_bus(DBusBusType type, const char* address, DBusError *error)
   item->size = KDBUS_ITEM_HEADER_SIZE + sizeof(__u64);
   item->data64[0] = 64;
 
+#ifdef KDBUS_FOR_SBB
   addr_value = strchr(address, ':') + 1;
   if(*addr_value)
     {
@@ -377,6 +280,7 @@ char* make_kdbus_bus(DBusBusType type, const char* address, DBusError *error)
           return NULL;
         }
     }
+#endif
 
   _dbus_verbose("Opening /dev/kdbus/control\n");
   fdc = open("/dev/kdbus/control", O_RDWR|O_CLOEXEC);
@@ -768,7 +672,7 @@ dbus_bool_t kdbus_add_match_rule (DBusConnection* connection, DBusMessage* messa
 
 	if(!add_match_kdbus (dbus_connection_get_transport(connection), sender_id, text))
 	{
-	      dbus_set_error (error, _dbus_error_from_errno (errno), "Could not add match for id:%d, %s",
+	      dbus_set_error (error, _dbus_error_from_errno (errno), "Could not add match for id:%llu, %s",
 	                      sender_id, _dbus_strerror_from_errno ());
 	      return FALSE;
 	}
@@ -789,7 +693,7 @@ dbus_bool_t kdbus_remove_match (DBusConnection* connection, DBusMessage* message
 
 	if(!remove_match_kdbus (dbus_connection_get_transport(connection), sender_id))
 	{
-	      dbus_set_error (error, _dbus_error_from_errno (errno), "Could not remove match rules for id:%d", sender_id);
+	      dbus_set_error (error, _dbus_error_from_errno (errno), "Could not remove match rules for id:%llu", sender_id);
 	      return FALSE;
 	}
 
@@ -814,64 +718,6 @@ int kdbus_get_name_owner(DBusConnection* connection, const char* name, char* own
 }
 
 /*
- *  Asks kdbus for uid of the owner of the name given in the message
- */
-dbus_bool_t kdbus_get_unix_user(DBusConnection* connection, const char* name, unsigned long* uid, DBusError* error)
-{
-  struct nameInfo info;
-  int inter_ret;
-  dbus_bool_t ret = FALSE;
-
-  inter_ret = kdbus_NameQuery(name, dbus_connection_get_transport(connection), &info);
-  if(inter_ret == 0) //name found
-  {
-    _dbus_verbose("User id:%llu\n", (unsigned long long) info.userId);
-    *uid = info.userId;
-    return TRUE;
-  }
-  else if((inter_ret == -ENOENT) || (inter_ret == -ENXIO)) //name has no owner
-    {
-      _dbus_verbose ("Name %s has no owner.\n", name);
-      dbus_set_error (error, DBUS_ERROR_FAILED, "Could not get UID of name '%s': no such name", name);
-    }
-
-  else
-  {
-    _dbus_verbose("kdbus error determining UID: err %d (%m)\n", errno);
-    dbus_set_error (error, DBUS_ERROR_FAILED, "Could not determine UID for '%s'", name);
-  }
-
-  return ret;
-}
-
-/*
- *  Asks kdbus for pid of the owner of the name given in the message
- */
-dbus_bool_t kdbus_get_connection_unix_process_id(DBusConnection* connection, const char* name, unsigned long* pid, DBusError* error)
-{
-	struct nameInfo info;
-	int inter_ret;
-	dbus_bool_t ret = FALSE;
-
-	inter_ret = kdbus_NameQuery(name, dbus_connection_get_transport(connection), &info);
-	if(inter_ret == 0) //name found
-	{
-		_dbus_verbose("Process id:%llu\n", (unsigned long long) info.processId);
-		*pid = info.processId;
-		return TRUE;
-	}
-	else if((inter_ret == -ENOENT) || (inter_ret == -ENXIO)) //name has no owner
-		dbus_set_error (error, DBUS_ERROR_FAILED, "Could not get PID of name '%s': no such name", name);
-	else
-	{
-		_dbus_verbose("kdbus error determining PID: err %d (%m)\n", errno);
-		dbus_set_error (error, DBUS_ERROR_FAILED, "Could not determine PID for '%s'", name);
-	}
-
-	return ret;
-}
-
-/*
  *  Asks kdbus for selinux_security_context of the owner of the name given in the message
  */
 dbus_bool_t kdbus_get_connection_unix_selinux_security_context(DBusConnection* connection, DBusMessage* message, DBusMessage* reply, DBusError* error)
@@ -903,57 +749,6 @@ dbus_bool_t kdbus_get_connection_unix_selinux_security_context(DBusConnection* c
 	return ret;
 }
 
-/**
- * Gets the UNIX user ID of the connection from kdbus, if known. Returns #TRUE if
- * the uid is filled in.  Always returns #FALSE on non-UNIX platforms
- * for now., though in theory someone could hook Windows to NIS or
- * something.  Always returns #FALSE prior to authenticating the
- * connection.
- *
- * The UID of is only read by bus daemon from kdbus. You can not
- * call this function from client side of the connection.
- *
- * You can ask the bus to tell you the UID of another connection though
- * if you like; this is done with dbus_bus_get_unix_user().
- *
- * @param connection the connection
- * @param uid return location for the user ID
- * @returns #TRUE if uid is filled in with a valid user ID
- */
-dbus_bool_t
-dbus_connection_get_unix_user (DBusConnection *connection,
-                               unsigned long  *uid)
-{
-  _dbus_return_val_if_fail (connection != NULL, FALSE);
-  _dbus_return_val_if_fail (uid != NULL, FALSE);
-
-  if(bus_context_is_kdbus(bus_connection_get_context (connection)))
-    return kdbus_get_unix_user(connection, bus_connection_get_name(connection), uid, NULL);
-
-  return dbus_connection_get_unix_user_dbus(connection, uid);
-}
-
-/**
- * Gets the process ID of the connection if any.
- * Returns #TRUE if the pid is filled in.
- *
- * @param connection the connection
- * @param pid return location for the process ID
- * @returns #TRUE if uid is filled in with a valid process ID
- */
-dbus_bool_t
-dbus_connection_get_unix_process_id (DBusConnection *connection,
-             unsigned long  *pid)
-{
-  _dbus_return_val_if_fail (connection != NULL, FALSE);
-  _dbus_return_val_if_fail (pid != NULL, FALSE);
-
-  if(bus_context_is_kdbus(bus_connection_get_context (connection)))
-    return kdbus_get_connection_unix_process_id(connection, bus_connection_get_name(connection), pid, NULL);
-
-  return dbus_connection_get_unix_process_id_dbus(connection, pid);
-}
-
 /*
  * Create connection structure for given name. It is needed to control starters - activatable services
  * and for ListQueued method (as long as kdbus is not supporting it). This connections don't have it's own
@@ -976,6 +771,7 @@ DBusConnection* create_phantom_connection(DBusConnection* connection, const char
         dbus_set_error (error, DBUS_ERROR_FAILED , "Name \"%s\" could not be acquired", name);
         goto out;
     }
+    dbus_bus_set_unique_name(phantom_connection, name);
     if(!bus_connection_complete(phantom_connection, &Sname, error))
     {
         bus_connection_disconnected(phantom_connection);
diff --git a/bus/kdbus-d.h b/bus/kdbus-d.h
index eaa18300..7bbab690 100644
--- a/bus/kdbus-d.h
+++ b/bus/kdbus-d.h
@@ -33,6 +33,7 @@
 #include <dbus/dbus-server.h>
 #include <linux/types.h>
 #include <dbus/dbus-transport-kdbus.h>
+#include <dbus/kdbus-common.h>
 
 __u64 sender_name_to_id(const char* name, DBusError* error);
 char* make_kdbus_bus(DBusBusType type, const char* address, DBusError *error);
@@ -49,24 +50,9 @@ dbus_bool_t kdbus_remove_match (DBusConnection* connection, DBusMessage* message
 dbus_bool_t add_match_kdbus (DBusTransport* transport, __u64 id, const char *rule);
 dbus_bool_t remove_match_kdbus (DBusTransport* transport, __u64 id);
 
-struct nameInfo
-{
-  __u64 uniqueId;
-  __u64 userId;
-  __u64 processId;
-  __u32 sec_label_len;
-  char *sec_label;
-};
-int kdbus_NameQuery(const char* name, DBusTransport* transport, struct nameInfo* pInfo);
-
 int kdbus_get_name_owner(DBusConnection* connection, const char* name, char* owner);
-dbus_bool_t kdbus_get_unix_user(DBusConnection* connection, const char* name, unsigned long* uid, DBusError* error);
-dbus_bool_t kdbus_get_connection_unix_process_id(DBusConnection* connection, const char* name, unsigned long* pid, DBusError* error);
 dbus_bool_t kdbus_get_connection_unix_selinux_security_context(DBusConnection* connection, DBusMessage* message, DBusMessage* reply, DBusError* error);
 
-dbus_bool_t dbus_connection_get_unix_user (DBusConnection *connection, unsigned long  *uid);
-dbus_bool_t dbus_connection_get_unix_process_id (DBusConnection *connection, unsigned long  *pid);
-
 DBusConnection* daemon_as_client(DBusBusType type, char* address, DBusError *error);
 dbus_bool_t register_daemon_name(DBusConnection* connection);
 DBusConnection* create_phantom_connection(DBusConnection* connection, const char* unique_name, DBusError* error);
diff --git a/bus/services.c b/bus/services.c
index 765e85ac..bd0afdfd 100644
--- a/bus/services.c
+++ b/bus/services.c
@@ -723,7 +723,7 @@ bus_registry_acquire_kdbus_service (BusRegistry      *registry,
       goto failed;
     }
 
-  if (!kdbus_get_unix_user(phantom, conn_unique_name, &uid, NULL))
+  if (!kdbus_connection_get_unix_user(phantom, conn_unique_name, &uid, NULL))
     goto failed;
 
 #ifdef POLICY_TO_KDBUS
diff --git a/dbus/dbus-connection.c b/dbus/dbus-connection.c
index cc27c371..25556d6b 100644
--- a/dbus/dbus-connection.c
+++ b/dbus/dbus-connection.c
@@ -47,6 +47,7 @@
 #include "dbus-marshal-basic.h"
 #ifdef ENABLE_KDBUS_TRANSPORT
 #include "dbus-transport-kdbus.h"
+#include "kdbus-common.h"
 #include <stdlib.h>
 #endif
 
@@ -5281,15 +5282,9 @@ dbus_connection_get_socket(DBusConnection              *connection,
  * @param uid return location for the user ID
  * @returns #TRUE if uid is filled in with a valid user ID
  */
-#ifdef ENABLE_KDBUS_TRANSPORT
-dbus_bool_t
-dbus_connection_get_unix_user_dbus (DBusConnection *connection,
-                               unsigned long  *uid)
-#else
 dbus_bool_t
 dbus_connection_get_unix_user (DBusConnection *connection,
                                unsigned long  *uid)
-#endif
 {
   dbus_bool_t result;
 
@@ -5298,16 +5293,26 @@ dbus_connection_get_unix_user (DBusConnection *connection,
 
   CONNECTION_LOCK (connection);
 
-  if (!_dbus_transport_try_to_authenticate (connection->transport))
-    result = FALSE;
+#ifdef ENABLE_KDBUS_TRANSPORT
+  if (_dbus_connection_get_address (connection) != NULL)
+    {
+      if (!strncmp (_dbus_connection_get_address (connection), "kdbus:", strlen("kdbus:")))
+        result = kdbus_connection_get_unix_user (connection, dbus_bus_get_unique_name (connection), uid, NULL);
+    }
   else
-    result = _dbus_transport_get_unix_user (connection->transport,
-                                            uid);
+#endif
+    {
+      if (!_dbus_transport_try_to_authenticate (connection->transport))
+        result = FALSE;
+      else
+        result = _dbus_transport_get_unix_user (connection->transport,
+                                                uid);
+    }
 
 #ifdef DBUS_WIN
   _dbus_assert (!result);
 #endif
-  
+
   CONNECTION_UNLOCK (connection);
 
   return result;
@@ -5323,15 +5328,9 @@ dbus_connection_get_unix_user (DBusConnection *connection,
  * @param pid return location for the process ID
  * @returns #TRUE if uid is filled in with a valid process ID
  */
-#ifdef ENABLE_KDBUS_TRANSPORT
-dbus_bool_t
-dbus_connection_get_unix_process_id_dbus (DBusConnection *connection,
-             unsigned long  *pid)
-#else
 dbus_bool_t
 dbus_connection_get_unix_process_id (DBusConnection *connection,
 				     unsigned long  *pid)
-#endif
 {
   dbus_bool_t result;
 
@@ -5340,11 +5339,21 @@ dbus_connection_get_unix_process_id (DBusConnection *connection,
 
   CONNECTION_LOCK (connection);
 
-  if (!_dbus_transport_try_to_authenticate (connection->transport))
-    result = FALSE;
+#ifdef ENABLE_KDBUS_TRANSPORT
+  if (_dbus_connection_get_address (connection) != NULL)
+    {
+      if (!strncmp (_dbus_connection_get_address (connection), "kdbus:", strlen("kdbus:")))
+        result = kdbus_connection_get_unix_process_id (connection, dbus_bus_get_unique_name (connection), pid, NULL);
+    }
   else
-    result = _dbus_transport_get_unix_process_id (connection->transport,
-						  pid);
+#endif
+    {
+      if (!_dbus_transport_try_to_authenticate (connection->transport))
+        result = FALSE;
+      else
+        result = _dbus_transport_get_unix_process_id (connection->transport,
+                                                      pid);
+    }
 
   CONNECTION_UNLOCK (connection);
 
diff --git a/dbus/kdbus-common.c b/dbus/kdbus-common.c
index e0e63052..837ed917 100644
--- a/dbus/kdbus-common.c
+++ b/dbus/kdbus-common.c
@@ -231,3 +231,156 @@ int release_kdbus_name(int fd, const char *name, __u64 id)
 
   return DBUS_RELEASE_NAME_REPLY_RELEASED;
 }
+
+/**
+ * Performs kdbus query of id of the given name
+ *
+ * @param name name to query for
+ * @param transport transport
+ * @param pInfo nameInfo structure address to store info about the name
+ * @return 0 on success, -errno if failed
+ */
+int kdbus_NameQuery(const char* name, DBusTransport* transport, struct nameInfo* pInfo)
+{
+  struct kdbus_cmd_conn_info *cmd;
+  int ret;
+  int fd;
+  uint64_t size;
+  __u64 id = 0;
+
+  memset(pInfo, 0, sizeof(struct nameInfo));
+
+  if(!_dbus_transport_get_socket_fd(transport, &fd))
+    return -EPERM;
+
+  size = sizeof(struct kdbus_cmd_conn_info);
+  if((name[0] == ':') && (name[1] == '1') && (name[2] == '.'))  /* if name starts with ":1." it is a unique name and should be send as number */
+     id = strtoull(&name[3], NULL, 10);
+  if(id == 0)
+    size += strlen(name) + 1;
+
+  cmd = alloca(size);
+  if (!cmd)
+  {
+    _dbus_verbose("Error allocating memory for: %s,%s\n", _dbus_strerror (errno), _dbus_error_from_errno (errno));
+    return -errno;
+  }
+
+  memset(cmd, 0, sizeof(struct kdbus_cmd_conn_info));
+  cmd->size = size;
+  cmd->id = id;
+  if(id == 0)
+    memcpy(cmd->name, name, strlen(name) + 1);
+
+  again:
+  ret = ioctl(fd, KDBUS_CMD_CONN_INFO, cmd);
+  if (ret < 0)
+  {
+    if(errno == EINTR)
+      goto again;
+    pInfo->uniqueId = 0;
+    return -errno;
+  }
+  else
+  {
+    struct kdbus_conn_info *info;
+    struct kdbus_item *item;
+
+    info = (struct kdbus_conn_info *)((char*)dbus_transport_get_pool_pointer(transport) + cmd->offset);
+    pInfo->uniqueId = info->id;
+
+    item = info->items;
+    while((uint8_t *)(item) < (uint8_t *)(info) + info->size)
+    {
+      if(item->type == KDBUS_ITEM_CREDS)
+        {
+          pInfo->userId = item->creds.uid;
+          pInfo->processId = item->creds.pid;
+        }
+
+      if(item->type == KDBUS_ITEM_SECLABEL)
+        {
+          pInfo->sec_label_len = item->size - KDBUS_ITEM_HEADER_SIZE - 1;
+          if(pInfo->sec_label_len != 0)
+            {
+              pInfo->sec_label = malloc(pInfo->sec_label_len);
+              if(pInfo->sec_label == NULL)
+                ret = -1;
+              else
+                memcpy(pInfo->sec_label, item->data, pInfo->sec_label_len);
+            }
+        }
+
+      item = KDBUS_PART_NEXT(item);
+    }
+
+    again2:
+    if (ioctl(fd, KDBUS_CMD_FREE, &cmd->offset) < 0)
+    {
+      if(errno == EINTR)
+        goto again2;
+      _dbus_verbose("kdbus error freeing pool: %d (%m)\n", errno);
+      return -errno;
+    }
+  }
+
+  return ret;
+}
+
+/*
+ *  Asks kdbus for uid of the owner of the name given in the message
+ */
+dbus_bool_t kdbus_connection_get_unix_user(DBusConnection* connection, const char* name, unsigned long* uid, DBusError* error)
+{
+  struct nameInfo info;
+  int inter_ret;
+  dbus_bool_t ret = FALSE;
+
+  inter_ret = kdbus_NameQuery(name, dbus_connection_get_transport(connection), &info);
+  if(inter_ret == 0) //name found
+  {
+    _dbus_verbose("User id:%llu\n", (unsigned long long) info.userId);
+    *uid = info.userId;
+    return TRUE;
+  }
+  else if((inter_ret == -ENOENT) || (inter_ret == -ENXIO)) //name has no owner
+    {
+      _dbus_verbose ("Name %s has no owner.\n", name);
+      dbus_set_error (error, DBUS_ERROR_FAILED, "Could not get UID of name '%s': no such name", name);
+    }
+
+  else
+  {
+    _dbus_verbose("kdbus error determining UID: err %d (%m)\n", errno);
+    dbus_set_error (error, DBUS_ERROR_FAILED, "Could not determine UID for '%s'", name);
+  }
+
+  return ret;
+}
+
+/*
+ *  Asks kdbus for pid of the owner of the name given in the message
+ */
+dbus_bool_t kdbus_connection_get_unix_process_id(DBusConnection* connection, const char* name, unsigned long* pid, DBusError* error)
+{
+	struct nameInfo info;
+	int inter_ret;
+	dbus_bool_t ret = FALSE;
+
+	inter_ret = kdbus_NameQuery(name, dbus_connection_get_transport(connection), &info);
+	if(inter_ret == 0) //name found
+	{
+		_dbus_verbose("Process id:%llu\n", (unsigned long long) info.processId);
+		*pid = info.processId;
+		return TRUE;
+	}
+	else if((inter_ret == -ENOENT) || (inter_ret == -ENXIO)) //name has no owner
+		dbus_set_error (error, DBUS_ERROR_FAILED, "Could not get PID of name '%s': no such name", name);
+	else
+	{
+		_dbus_verbose("kdbus error determining PID: err %d (%m)\n", errno);
+		dbus_set_error (error, DBUS_ERROR_FAILED, "Could not determine PID for '%s'", name);
+	}
+
+	return ret;
+}
diff --git a/dbus/kdbus-common.h b/dbus/kdbus-common.h
index 14b62af5..4b84a316 100644
--- a/dbus/kdbus-common.h
+++ b/dbus/kdbus-common.h
@@ -41,7 +41,19 @@
 //todo restore if DBus policy will be applied in kdbus somehow
 //#define POLICY_TO_KDBUS
 
-dbus_bool_t register_kdbus_policy(const char* name, DBusTransport *transport, unsigned long int uid);
+struct nameInfo
+{
+  __u64 uniqueId;
+  __u64 userId;
+  __u64 processId;
+  __u32 sec_label_len;
+  char *sec_label;
+};
+int kdbus_NameQuery(const char *name, DBusTransport *transport, struct nameInfo *pInfo);
+dbus_bool_t kdbus_connection_get_unix_user(DBusConnection *connection, const char *name, unsigned long *uid, DBusError *error);
+dbus_bool_t kdbus_connection_get_unix_process_id(DBusConnection *connection, const char *name, unsigned long *uid, DBusError *error);
+
+dbus_bool_t register_kdbus_policy(const char *name, DBusTransport *transport, unsigned long int uid);
 int request_kdbus_name(int fd, const char *name, const __u64 flags, __u64 id);
 int release_kdbus_name(int fd, const char *name, __u64 id);