* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
+
+#if MAJOR_IN_MKDEV
+#include <sys/mkdev.h>
+#elif MAJOR_IN_SYSMACROS
+#include <sys/sysmacros.h>
#endif
#include "gdbusutils.h"
#include "gdbusprivate.h"
#ifdef G_OS_UNIX
+#include "gkdbus.h"
#include "gunixfdlist.h"
#endif
#include "glibintl.h"
-#include "gioalias.h"
+
+typedef struct _GMemoryBuffer GMemoryBuffer;
+struct _GMemoryBuffer
+{
+ gsize len;
+ gsize valid_len;
+ gsize pos;
+ gchar *data;
+ GDataStreamByteOrder byte_order;
+};
+
+static gboolean
+g_memory_buffer_is_byteswapped (GMemoryBuffer *mbuf)
+{
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+ return mbuf->byte_order == G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
+#else
+ return mbuf->byte_order == G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
+#endif
+}
+
+static guchar
+g_memory_buffer_read_byte (GMemoryBuffer *mbuf)
+{
+ if (mbuf->pos >= mbuf->valid_len)
+ return 0;
+ return mbuf->data [mbuf->pos++];
+}
+
+static gint16
+g_memory_buffer_read_int16 (GMemoryBuffer *mbuf)
+{
+ gint16 v;
+
+ if (mbuf->pos > mbuf->valid_len - 2)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 2);
+ mbuf->pos += 2;
+
+ if (g_memory_buffer_is_byteswapped (mbuf))
+ v = GUINT16_SWAP_LE_BE (v);
+
+ return v;
+}
+
+static guint16
+g_memory_buffer_read_uint16 (GMemoryBuffer *mbuf)
+{
+ guint16 v;
+
+ if (mbuf->pos > mbuf->valid_len - 2)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 2);
+ mbuf->pos += 2;
+
+ if (g_memory_buffer_is_byteswapped (mbuf))
+ v = GUINT16_SWAP_LE_BE (v);
+
+ return v;
+}
+
+static gint32
+g_memory_buffer_read_int32 (GMemoryBuffer *mbuf)
+{
+ gint32 v;
+
+ if (mbuf->pos > mbuf->valid_len - 4)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 4);
+ mbuf->pos += 4;
+
+ if (g_memory_buffer_is_byteswapped (mbuf))
+ v = GUINT32_SWAP_LE_BE (v);
+
+ return v;
+}
+
+static guint32
+g_memory_buffer_read_uint32 (GMemoryBuffer *mbuf)
+{
+ guint32 v;
+
+ if (mbuf->pos > mbuf->valid_len - 4)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 4);
+ mbuf->pos += 4;
+
+ if (g_memory_buffer_is_byteswapped (mbuf))
+ v = GUINT32_SWAP_LE_BE (v);
+
+ return v;
+}
+
+static gint64
+g_memory_buffer_read_int64 (GMemoryBuffer *mbuf)
+{
+ gint64 v;
+
+ if (mbuf->pos > mbuf->valid_len - 8)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 8);
+ mbuf->pos += 8;
+
+ if (g_memory_buffer_is_byteswapped (mbuf))
+ v = GUINT64_SWAP_LE_BE (v);
+
+ return v;
+}
+
+static guint64
+g_memory_buffer_read_uint64 (GMemoryBuffer *mbuf)
+{
+ guint64 v;
+
+ if (mbuf->pos > mbuf->valid_len - 8)
+ {
+ mbuf->pos = mbuf->valid_len;
+ return 0;
+ }
+
+ memcpy (&v, mbuf->data + mbuf->pos, 8);
+ mbuf->pos += 8;
+
+ if (g_memory_buffer_is_byteswapped (mbuf))
+ v = GUINT64_SWAP_LE_BE (v);
+
+ return v;
+}
+
+#define MIN_ARRAY_SIZE 128
+
+static gsize
+g_nearest_pow (gsize num)
+{
+ gsize n = 1;
+
+ while (n < num && n > 0)
+ n <<= 1;
+
+ return n;
+}
+
+static void
+array_resize (GMemoryBuffer *mbuf,
+ gsize size)
+{
+ gpointer data;
+ gsize len;
+
+ if (mbuf->len == size)
+ return;
+
+ len = mbuf->len;
+ data = g_realloc (mbuf->data, size);
+
+ if (size > len)
+ memset ((guint8 *)data + len, 0, size - len);
+
+ mbuf->data = data;
+ mbuf->len = size;
+
+ if (mbuf->len < mbuf->valid_len)
+ mbuf->valid_len = mbuf->len;
+}
+
+static gboolean
+g_memory_buffer_write (GMemoryBuffer *mbuf,
+ const void *buffer,
+ gsize count)
+{
+ guint8 *dest;
+ gsize new_size;
+
+ if (count == 0)
+ return TRUE;
+
+ /* Check for address space overflow, but only if the buffer is resizable.
+ Otherwise we just do a short write and don't worry. */
+ if (mbuf->pos + count < mbuf->pos)
+ return FALSE;
+
+ if (mbuf->pos + count > mbuf->len)
+ {
+ /* At least enought to fit the write, rounded up
+ for greater than linear growth.
+ TODO: This wastes a lot of memory at large buffer sizes.
+ Figure out a more rational allocation strategy. */
+ new_size = g_nearest_pow (mbuf->pos + count);
+ /* Check for overflow again. We have checked if
+ pos + count > G_MAXSIZE, but now check if g_nearest_pow () has
+ overflowed */
+ if (new_size == 0)
+ return FALSE;
+
+ new_size = MAX (new_size, MIN_ARRAY_SIZE);
+ array_resize (mbuf, new_size);
+ }
+
+ dest = (guint8 *)mbuf->data + mbuf->pos;
+ memcpy (dest, buffer, count);
+ mbuf->pos += count;
+
+ if (mbuf->pos > mbuf->valid_len)
+ mbuf->valid_len = mbuf->pos;
+
+ return TRUE;
+}
+
+static gboolean
+g_memory_buffer_put_byte (GMemoryBuffer *mbuf,
+ guchar data)
+{
+ return g_memory_buffer_write (mbuf, &data, 1);
+}
+
+static gboolean
+g_memory_buffer_put_int16 (GMemoryBuffer *mbuf,
+ gint16 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GINT16_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GINT16_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 2);
+}
+
+static gboolean
+g_memory_buffer_put_uint16 (GMemoryBuffer *mbuf,
+ guint16 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GUINT16_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GUINT16_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 2);
+}
+
+static gboolean
+g_memory_buffer_put_int32 (GMemoryBuffer *mbuf,
+ gint32 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GINT32_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GINT32_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 4);
+}
+
+static gboolean
+g_memory_buffer_put_uint32 (GMemoryBuffer *mbuf,
+ guint32 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GUINT32_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GUINT32_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 4);
+}
+
+static gboolean
+g_memory_buffer_put_int64 (GMemoryBuffer *mbuf,
+ gint64 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GINT64_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GINT64_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 8);
+}
+
+static gboolean
+g_memory_buffer_put_uint64 (GMemoryBuffer *mbuf,
+ guint64 data)
+{
+ switch (mbuf->byte_order)
+ {
+ case G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN:
+ data = GUINT64_TO_BE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN:
+ data = GUINT64_TO_LE (data);
+ break;
+ case G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN:
+ default:
+ break;
+ }
+
+ return g_memory_buffer_write (mbuf, &data, 8);
+}
+
+static gboolean
+g_memory_buffer_put_string (GMemoryBuffer *mbuf,
+ const char *str)
+{
+ g_return_val_if_fail (str != NULL, FALSE);
+
+ return g_memory_buffer_write (mbuf, str, strlen (str));
+}
+
/**
* SECTION:gdbusmessage
GDBusMessageType type;
GDBusMessageFlags flags;
+ gboolean locked;
+ GDBusMessageByteOrder byte_order;
guchar major_protocol_version;
guint32 serial;
GHashTable *headers;
#endif
};
+enum
+{
+ PROP_0,
+ PROP_LOCKED
+};
+
G_DEFINE_TYPE (GDBusMessage, g_dbus_message, G_TYPE_OBJECT);
static void
}
static void
+g_dbus_message_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GDBusMessage *message = G_DBUS_MESSAGE (object);
+
+ switch (prop_id)
+ {
+ case PROP_LOCKED:
+ g_value_set_boolean (value, g_dbus_message_get_locked (message));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
g_dbus_message_class_init (GDBusMessageClass *klass)
{
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
-
gobject_class->finalize = g_dbus_message_finalize;
+ gobject_class->get_property = g_dbus_message_get_property;
+
+ /**
+ * GDBusConnection:locked:
+ *
+ * A boolean specifying whether the message is locked.
+ *
+ * Since: 2.26
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_LOCKED,
+ g_param_spec_boolean ("locked",
+ P_("Locked"),
+ P_("Whether the message is locked"),
+ FALSE,
+ G_PARAM_READABLE |
+ G_PARAM_STATIC_NAME |
+ G_PARAM_STATIC_BLURB |
+ G_PARAM_STATIC_NICK));
}
static void
g_dbus_message_init (GDBusMessage *message)
{
+ /* Any D-Bus implementation is supposed to handle both Big and
+ * Little Endian encodings and the Endianness is part of the D-Bus
+ * message - we prefer to use Big Endian (since it's Network Byte
+ * Order and just easier to read for humans) but if the machine is
+ * Little Endian we use that for performance reasons.
+ */
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+ message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_LITTLE_ENDIAN;
+#else
+ /* this could also be G_PDP_ENDIAN */
+ message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_BIG_ENDIAN;
+#endif
message->headers = g_hash_table_new_full (g_direct_hash,
g_direct_equal,
NULL,
/**
* g_dbus_message_new_method_call:
- * @name: A valid D-Bus name or %NULL.
+ * @name: (allow-none): A valid D-Bus name or %NULL.
* @path: A valid object path.
- * @interface_: A valid D-Bus interface name or %NULL.
+ * @interface_: (allow-none): A valid D-Bus interface name or %NULL.
* @method: A valid method name.
*
* Creates a new #GDBusMessage for a method call.
/**
* g_dbus_message_new_signal:
* @path: A valid object path.
- * @interface_: A valid D-Bus interface name or %NULL.
+ * @interface_: A valid D-Bus interface name.
* @signal: A valid signal name.
*
* Creates a new #GDBusMessage for a signal emission.
g_return_val_if_fail (g_variant_is_object_path (path), NULL);
g_return_val_if_fail (g_dbus_is_member_name (signal), NULL);
- g_return_val_if_fail (interface_ == NULL || g_dbus_is_interface_name (interface_), NULL);
+ g_return_val_if_fail (g_dbus_is_interface_name (interface_), NULL);
message = g_dbus_message_new ();
message->type = G_DBUS_MESSAGE_TYPE_SIGNAL;
g_dbus_message_set_path (message, path);
g_dbus_message_set_member (message, signal);
-
- if (interface_ != NULL)
- g_dbus_message_set_interface (message, interface_);
+ g_dbus_message_set_interface (message, interface_);
return message;
}
*
* Creates a new #GDBusMessage that is a reply to @method_call_message.
*
- * Returns: A #GDBusMessage. Free with g_object_unref().
+ * Returns: (transfer full): #GDBusMessage. Free with g_object_unref().
*
* Since: 2.26
*/
message = g_dbus_message_new ();
message->type = G_DBUS_MESSAGE_TYPE_METHOD_RETURN;
message->flags = G_DBUS_MESSAGE_FLAGS_NO_REPLY_EXPECTED;
+ /* reply with same endianness */
+ message->byte_order = method_call_message->byte_order;
g_dbus_message_set_reply_serial (message, g_dbus_message_get_serial (method_call_message));
sender = g_dbus_message_get_sender (method_call_message);
*
* Creates a new #GDBusMessage that is an error reply to @method_call_message.
*
- * Returns: A #GDBusMessage. Free with g_object_unref().
+ * Returns: (transfer full): A #GDBusMessage. Free with g_object_unref().
*
* Since: 2.26
*/
*
* Creates a new #GDBusMessage that is an error reply to @method_call_message.
*
- * Returns: A #GDBusMessage. Free with g_object_unref().
+ * Returns: (transfer full): A #GDBusMessage. Free with g_object_unref().
*
* Since: 2.26
*/
message = g_dbus_message_new ();
message->type = G_DBUS_MESSAGE_TYPE_ERROR;
message->flags = G_DBUS_MESSAGE_FLAGS_NO_REPLY_EXPECTED;
+ /* reply with same endianness */
+ message->byte_order = method_call_message->byte_order;
g_dbus_message_set_reply_serial (message, g_dbus_message_get_serial (method_call_message));
g_dbus_message_set_error_name (message, error_name);
*
* Like g_dbus_message_new_method_error() but intended for language bindings.
*
- * Returns: A #GDBusMessage. Free with g_object_unref().
+ * Returns: (transfer full): A #GDBusMessage. Free with g_object_unref().
*
* Since: 2.26
*/
+G_GNUC_PRINTF(3, 0)
GDBusMessage *
g_dbus_message_new_method_error_valist (GDBusMessage *method_call_message,
const gchar *error_name,
/* ---------------------------------------------------------------------------------------------------- */
+/**
+ * g_dbus_message_get_byte_order:
+ * @message: A #GDBusMessage.
+ *
+ * Gets the byte order of @message.
+ *
+ * Returns: The byte order.
+ */
+GDBusMessageByteOrder
+g_dbus_message_get_byte_order (GDBusMessage *message)
+{
+ g_return_val_if_fail (G_IS_DBUS_MESSAGE (message), (GDBusMessageByteOrder) 0);
+ return message->byte_order;
+}
+
+/**
+ * g_dbus_message_set_byte_order:
+ * @message: A #GDBusMessage.
+ * @byte_order: The byte order.
+ *
+ * Sets the byte order of @message.
+ */
+void
+g_dbus_message_set_byte_order (GDBusMessage *message,
+ GDBusMessageByteOrder byte_order)
+{
+ g_return_if_fail (G_IS_DBUS_MESSAGE (message));
+
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
+ message->byte_order = byte_order;
+}
+
+/* ---------------------------------------------------------------------------------------------------- */
+
/* TODO: need GI annotations to specify that any guchar value goes for the type */
/**
{
g_return_if_fail (G_IS_DBUS_MESSAGE (message));
g_return_if_fail (type >=0 && type < 256);
+
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
message->type = type;
}
{
g_return_if_fail (G_IS_DBUS_MESSAGE (message));
g_return_if_fail (flags >=0 && flags < 256);
+
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
message->flags = flags;
}
guint32 serial)
{
g_return_if_fail (G_IS_DBUS_MESSAGE (message));
+
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
message->serial = serial;
}
/* ---------------------------------------------------------------------------------------------------- */
+/**
+ * _g_dbus_message_get_protocol_ver:
+ * To remove - more info [1]
+ * [1] https://bugzilla.gnome.org/show_bug.cgi?id=721861
+ */
+guint32
+_g_dbus_message_get_protocol_ver (GDBusMessage *message)
+{
+ g_return_val_if_fail (G_IS_DBUS_MESSAGE (message), 0);
+ return message->major_protocol_version;
+}
+
+/**
+ * _g_dbus_message_set_protocol_ver:
+ * To remove - more info [1]
+ * [1] https://bugzilla.gnome.org/show_bug.cgi?id=721861
+ */
+void
+_g_dbus_message_set_protocol_ver (GDBusMessage *message,
+ guint32 protocol_ver)
+{
+ g_return_if_fail (G_IS_DBUS_MESSAGE (message));
+
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
+ message->major_protocol_version = protocol_ver;
+}
+
/* TODO: need GI annotations to specify that any guchar value goes for header_field */
/**
* g_dbus_message_set_header:
* @message: A #GDBusMessage.
* @header_field: A 8-bit unsigned integer (typically a value from the #GDBusMessageHeaderField enumeration)
- * @value: A #GVariant to set the header field or %NULL to clear the header field.
+ * @value: (allow-none): A #GVariant to set the header field or %NULL to clear the header field.
*
* Sets a header field on @message.
*
{
g_return_if_fail (G_IS_DBUS_MESSAGE (message));
g_return_if_fail (header_field >=0 && header_field < 256);
+
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
if (value == NULL)
{
g_hash_table_remove (message->headers, GUINT_TO_POINTER (header_field));
*
* Gets an array of all header fields on @message that are set.
*
- * Returns: An array of header fields terminated by
- * %G_DBUS_MESSAGE_HEADER_FIELD_INVALID. Each element is a
- * #guchar. Free with g_free().
+ * Returns: (array zero-terminated=1): An array of header fields
+ * terminated by %G_DBUS_MESSAGE_HEADER_FIELD_INVALID. Each element
+ * is a #guchar. Free with g_free().
*
* Since: 2.26
*/
*
* Gets the body of a message.
*
- * Returns: A #GVariant or %NULL if the body is empty. Do not free, it is owned by @message.
+ * Returns: (transfer none): A #GVariant or %NULL if the body is
+ * empty. Do not free, it is owned by @message.
*
* Since: 2.26
*/
g_return_if_fail (G_IS_DBUS_MESSAGE (message));
g_return_if_fail ((body == NULL) || g_variant_is_of_type (body, G_VARIANT_TYPE_TUPLE));
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
if (message->body != NULL)
g_variant_unref (message->body);
if (body == NULL)
*
* This method is only available on UNIX.
*
- * Returns: A #GUnixFDList or %NULL if no file descriptors are
+ * Returns: (transfer none):A #GUnixFDList or %NULL if no file descriptors are
* associated. Do not free, this object is owned by @message.
*
* Since: 2.26
/**
* g_dbus_message_set_unix_fd_list:
* @message: A #GDBusMessage.
- * @fd_list: A #GUnixFDList or %NULL.
+ * @fd_list: (allow-none): A #GUnixFDList or %NULL.
*
* Sets the UNIX file descriptors associated with @message. As a
* side-effect the %G_DBUS_MESSAGE_HEADER_FIELD_NUM_UNIX_FDS header
{
g_return_if_fail (G_IS_DBUS_MESSAGE (message));
g_return_if_fail (fd_list == NULL || G_IS_UNIX_FD_LIST (fd_list));
+
+ if (message->locked)
+ {
+ g_warning ("%s: Attempted to modify a locked message", G_STRFUNC);
+ return;
+ }
+
if (message->fd_list != NULL)
g_object_unref (message->fd_list);
if (fd_list != NULL)
/* ---------------------------------------------------------------------------------------------------- */
+static guint
+get_type_fixed_size (const GVariantType *type)
+{
+ /* NB: we do not treat 'b' as fixed-size here because GVariant and
+ * D-Bus disagree about the size.
+ */
+ switch (*g_variant_type_peek_string (type))
+ {
+ case 'y':
+ return 1;
+ case 'n': case 'q':
+ return 2;
+ case 'i': case 'u': case 'h':
+ return 4;
+ case 'x': case 't': case 'd':
+ return 8;
+ default:
+ return 0;
+ }
+}
+
static gboolean
-ensure_input_padding (GMemoryInputStream *mis,
- gsize padding_size,
- GError **error)
+validate_headers (GDBusMessage *message,
+ GError **error)
{
- gsize offset;
- gsize wanted_offset;
+ gboolean ret;
- offset = g_seekable_tell (G_SEEKABLE (mis));
- wanted_offset = ((offset + padding_size - 1) / padding_size) * padding_size;
+ g_return_val_if_fail (G_IS_DBUS_MESSAGE (message), FALSE);
+ g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
- if (offset != wanted_offset)
- {
- return g_seekable_seek (G_SEEKABLE (mis), wanted_offset, G_SEEK_SET, NULL, error);
- }
- else
+ ret = FALSE;
+
+ switch (message->type)
{
- return TRUE;
+ case G_DBUS_MESSAGE_TYPE_INVALID:
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("type is INVALID"));
+ goto out;
+ break;
+
+ case G_DBUS_MESSAGE_TYPE_METHOD_CALL:
+ if (g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_PATH) == NULL ||
+ g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_MEMBER) == NULL)
+ {
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("METHOD_CALL message: PATH or MEMBER header field is missing"));
+ goto out;
+ }
+ break;
+
+ case G_DBUS_MESSAGE_TYPE_METHOD_RETURN:
+ if (g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_REPLY_SERIAL) == NULL)
+ {
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("METHOD_RETURN message: REPLY_SERIAL header field is missing"));
+ goto out;
+ }
+ break;
+
+ case G_DBUS_MESSAGE_TYPE_ERROR:
+ if (g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_ERROR_NAME) == NULL ||
+ g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_REPLY_SERIAL) == NULL)
+ {
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("ERROR message: REPLY_SERIAL or ERROR_NAME header field is missing"));
+ goto out;
+ }
+ break;
+
+ case G_DBUS_MESSAGE_TYPE_SIGNAL:
+ if (g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_PATH) == NULL ||
+ g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_INTERFACE) == NULL ||
+ g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_MEMBER) == NULL)
+ {
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("SIGNAL message: PATH, INTERFACE or MEMBER header field is missing"));
+ goto out;
+ }
+ if (g_strcmp0 (g_dbus_message_get_path (message), "/org/freedesktop/DBus/Local") == 0)
+ {
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("SIGNAL message: The PATH header field is using the reserved value /org/freedesktop/DBus/Local"));
+ goto out;
+ }
+ if (g_strcmp0 (g_dbus_message_get_interface (message), "org.freedesktop.DBus.Local") == 0)
+ {
+ g_set_error_literal (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("SIGNAL message: The INTERFACE header field is using the reserved value org.freedesktop.DBus.Local"));
+ goto out;
+ }
+ break;
+
+ default:
+ /* hitherto unknown type - nothing to check */
+ break;
}
+
+ ret = TRUE;
+
+ out:
+ g_assert (ret || (error == NULL || *error != NULL));
+ return ret;
}
-static gchar *
-read_string (GMemoryInputStream *mis,
- GDataInputStream *dis,
- gsize len,
- GError **error)
+/* ---------------------------------------------------------------------------------------------------- */
+
+static gboolean
+ensure_input_padding (GMemoryBuffer *buf,
+ gsize padding_size)
{
- GString *s;
- gchar buf[256];
- gsize remaining;
- guchar nul;
- GError *local_error;
+ gsize offset;
+ gsize wanted_offset;
- s = g_string_new (NULL);
+ offset = buf->pos;
+ wanted_offset = ((offset + padding_size - 1) / padding_size) * padding_size;
+ buf->pos = wanted_offset;
+ return TRUE;
+}
- remaining = len;
- while (remaining > 0)
- {
- gsize to_read;
- gssize num_read;
-
- to_read = MIN (remaining, sizeof (buf));
- num_read = g_input_stream_read (G_INPUT_STREAM (mis),
- buf,
- to_read,
- NULL,
- error);
- if (num_read < 0)
- goto fail;
- if (num_read == 0)
- {
- /* G_GSIZE_FORMAT doesn't work with gettext, so we use %lu */
- g_set_error (error,
- G_IO_ERROR,
- G_IO_ERROR_INVALID_ARGUMENT,
- _("Wanted to read %lu bytes but got EOF"),
- to_read);
- goto fail;
- }
+static const gchar *
+read_string (GMemoryBuffer *mbuf,
+ gsize len,
+ GError **error)
+{
+ gchar *str;
+ const gchar *end_valid;
- remaining -= num_read;
- g_string_append_len (s, buf, num_read);
+ if G_UNLIKELY (mbuf->pos + len >= mbuf->valid_len || mbuf->pos + len < mbuf->pos)
+ {
+ mbuf->pos = mbuf->valid_len;
+ /* G_GSIZE_FORMAT doesn't work with gettext, so we use %lu */
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ g_dngettext (GETTEXT_PACKAGE,
+ "Wanted to read %lu byte but only got %lu",
+ "Wanted to read %lu bytes but only got %lu",
+ (gulong)len),
+ (gulong)len,
+ (gulong)(mbuf->valid_len - mbuf->pos));
+ return NULL;
}
- local_error = NULL;
- nul = g_data_input_stream_read_byte (dis, NULL, &local_error);
- if (local_error != NULL)
+ if G_UNLIKELY (mbuf->data[mbuf->pos + len] != '\0')
{
- g_propagate_error (error, local_error);
- goto fail;
+ str = g_strndup (mbuf->data + mbuf->pos, len);
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Expected NUL byte after the string '%s' but found byte %d"),
+ str, mbuf->data[mbuf->pos + len]);
+ g_free (str);
+ mbuf->pos += len + 1;
+ return NULL;
+ }
+
+ str = mbuf->data + mbuf->pos;
+ mbuf->pos += len + 1;
+
+ if G_UNLIKELY (!g_utf8_validate (str, -1, &end_valid))
+ {
+ gint offset;
+ gchar *valid_str;
+ offset = (gint) (end_valid - str);
+ valid_str = g_strndup (str, offset);
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Expected valid UTF-8 string but found invalid bytes at byte offset %d (length of string is %d). "
+ "The valid UTF-8 string up until that point was '%s'"),
+ offset,
+ (gint) len,
+ valid_str);
+ g_free (valid_str);
+ return NULL;
}
- if (nul != '\0')
+
+ return str;
+}
+
+static gconstpointer
+read_bytes (GMemoryBuffer *mbuf,
+ gsize len,
+ GError **error)
+{
+ gconstpointer result;
+
+ if G_UNLIKELY (mbuf->pos + len > mbuf->valid_len || mbuf->pos + len < mbuf->pos)
{
+ mbuf->pos = mbuf->valid_len;
+ /* G_GSIZE_FORMAT doesn't work with gettext, so we use %lu */
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Expected NUL byte after the string `%s' but found `%c' (%d)"),
- s->str, nul, nul);
- goto fail;
+ g_dngettext (GETTEXT_PACKAGE,
+ "Wanted to read %lu byte but only got %lu",
+ "Wanted to read %lu bytes but only got %lu",
+ (gulong)len),
+ (gulong)len,
+ (gulong)(mbuf->valid_len - mbuf->pos));
+ return NULL;
}
- return g_string_free (s, FALSE);
+ result = mbuf->data + mbuf->pos;
+ mbuf->pos += len;
- fail:
- g_string_free (s, TRUE);
- return NULL;
+ return result;
}
/* if just_align==TRUE, don't read a value, just align the input stream wrt padding */
/* returns a non-floating GVariant! */
static GVariant *
-parse_value_from_blob (GMemoryInputStream *mis,
- GDataInputStream *dis,
- const GVariantType *type,
- gboolean just_align,
- guint indent,
- GError **error)
+parse_value_from_blob (GMemoryBuffer *buf,
+ const GVariantType *type,
+ gboolean just_align,
+ guint indent,
+ GError **error)
{
GVariant *ret;
GError *local_error;
gboolean is_leaf;
+ const gchar *type_string;
+
+ type_string = g_variant_type_peek_string (type);
#ifdef DEBUG_SERIALIZER
- if (!just_align)
{
gchar *s;
s = g_variant_type_dup_string (type);
- g_print ("%*sReading type %s from offset 0x%04x",
+ g_print ("%*s%s type %s from offset 0x%04x",
indent, "",
+ just_align ? "Aligning" : "Reading",
s,
- (gint) g_seekable_tell (G_SEEKABLE (mis)));
+ (gint) g_seekable_tell (G_SEEKABLE (buf)));
g_free (s);
}
#endif /* DEBUG_SERIALIZER */
is_leaf = TRUE;
local_error = NULL;
- if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
+ switch (type_string[0])
{
- if (!ensure_input_padding (mis, 4, &local_error))
- goto fail;
+ case 'b': /* G_VARIANT_TYPE_BOOLEAN */
+ ensure_input_padding (buf, 4);
if (!just_align)
{
gboolean v;
- v = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_uint32 (buf);
ret = g_variant_new_boolean (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_BYTE))
- {
+ break;
+
+ case 'y': /* G_VARIANT_TYPE_BYTE */
if (!just_align)
{
guchar v;
- v = g_data_input_stream_read_byte (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_byte (buf);
ret = g_variant_new_byte (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT16))
- {
- if (!ensure_input_padding (mis, 2, &local_error))
- goto fail;
+ break;
+
+ case 'n': /* G_VARIANT_TYPE_INT16 */
+ ensure_input_padding (buf, 2);
if (!just_align)
{
gint16 v;
- v = g_data_input_stream_read_int16 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_int16 (buf);
ret = g_variant_new_int16 (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT16))
- {
- if (!ensure_input_padding (mis, 2, &local_error))
- goto fail;
+ break;
+
+ case 'q': /* G_VARIANT_TYPE_UINT16 */
+ ensure_input_padding (buf, 2);
if (!just_align)
{
guint16 v;
- v = g_data_input_stream_read_uint16 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_uint16 (buf);
ret = g_variant_new_uint16 (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT32))
- {
- if (!ensure_input_padding (mis, 4, &local_error))
- goto fail;
+ break;
+
+ case 'i': /* G_VARIANT_TYPE_INT32 */
+ ensure_input_padding (buf, 4);
if (!just_align)
{
gint32 v;
- v = g_data_input_stream_read_int32 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_int32 (buf);
ret = g_variant_new_int32 (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT32))
- {
- if (!ensure_input_padding (mis, 4, &local_error))
- goto fail;
+ break;
+
+ case 'u': /* G_VARIANT_TYPE_UINT32 */
+ ensure_input_padding (buf, 4);
if (!just_align)
{
guint32 v;
- v = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_uint32 (buf);
ret = g_variant_new_uint32 (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT64))
- {
- if (!ensure_input_padding (mis, 8, &local_error))
- goto fail;
+ break;
+
+ case 'x': /* G_VARIANT_TYPE_INT64 */
+ ensure_input_padding (buf, 8);
if (!just_align)
{
gint64 v;
- v = g_data_input_stream_read_int64 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_int64 (buf);
ret = g_variant_new_int64 (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT64))
- {
- if (!ensure_input_padding (mis, 8, &local_error))
- goto fail;
+ break;
+
+ case 't': /* G_VARIANT_TYPE_UINT64 */
+ ensure_input_padding (buf, 8);
if (!just_align)
{
guint64 v;
- v = g_data_input_stream_read_uint64 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ v = g_memory_buffer_read_uint64 (buf);
ret = g_variant_new_uint64 (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_DOUBLE))
- {
- if (!ensure_input_padding (mis, 8, &local_error))
- goto fail;
+ break;
+
+ case 'd': /* G_VARIANT_TYPE_DOUBLE */
+ ensure_input_padding (buf, 8);
if (!just_align)
{
- guint64 v;
- gdouble *encoded;
- v = g_data_input_stream_read_uint64 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
- /* TODO: hmm */
- encoded = (gdouble *) &v;
- ret = g_variant_new_double (*encoded);
+ union {
+ guint64 v_uint64;
+ gdouble v_double;
+ } u;
+ G_STATIC_ASSERT (sizeof (gdouble) == sizeof (guint64));
+ u.v_uint64 = g_memory_buffer_read_uint64 (buf);
+ ret = g_variant_new_double (u.v_double);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
- {
- if (!ensure_input_padding (mis, 4, &local_error))
- goto fail;
+ break;
+
+ case 's': /* G_VARIANT_TYPE_STRING */
+ ensure_input_padding (buf, 4);
if (!just_align)
{
guint32 len;
- gchar *v;
- len = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
- v = read_string (mis, dis, (gsize) len, &local_error);
+ const gchar *v;
+ len = g_memory_buffer_read_uint32 (buf);
+ v = read_string (buf, (gsize) len, &local_error);
if (v == NULL)
goto fail;
ret = g_variant_new_string (v);
- g_free (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_OBJECT_PATH))
- {
- if (!ensure_input_padding (mis, 4, &local_error))
- goto fail;
+ break;
+
+ case 'o': /* G_VARIANT_TYPE_OBJECT_PATH */
+ ensure_input_padding (buf, 4);
if (!just_align)
{
guint32 len;
- gchar *v;
- len = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
- v = read_string (mis, dis, (gsize) len, &local_error);
+ const gchar *v;
+ len = g_memory_buffer_read_uint32 (buf);
+ v = read_string (buf, (gsize) len, &local_error);
if (v == NULL)
goto fail;
if (!g_variant_is_object_path (v))
g_set_error (&local_error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Parsed value `%s' is not a valid D-Bus object path"),
+ _("Parsed value '%s' is not a valid D-Bus object path"),
v);
- g_free (v);
goto fail;
}
ret = g_variant_new_object_path (v);
- g_free (v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_SIGNATURE))
- {
+ break;
+
+ case 'g': /* G_VARIANT_TYPE_SIGNATURE */
if (!just_align)
{
guchar len;
- gchar *v;
- len = g_data_input_stream_read_byte (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
- v = read_string (mis, dis, (gsize) len, &local_error);
+ const gchar *v;
+ len = g_memory_buffer_read_byte (buf);
+ v = read_string (buf, (gsize) len, &local_error);
if (v == NULL)
goto fail;
if (!g_variant_is_signature (v))
g_set_error (&local_error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Parsed value `%s' is not a valid D-Bus signature"),
+ _("Parsed value '%s' is not a valid D-Bus signature"),
v);
- g_free (v);
goto fail;
}
ret = g_variant_new_signature (v);
- g_free (v);
}
- }
- else if (g_variant_type_is_array (type))
- {
- guint32 array_len;
- goffset offset;
- goffset target;
- const GVariantType *element_type;
- GVariantBuilder builder;
-
- if (!ensure_input_padding (mis, 4, &local_error))
- goto fail;
+ break;
- if (just_align)
+ case 'h': /* G_VARIANT_TYPE_HANDLE */
+ ensure_input_padding (buf, 4);
+ if (!just_align)
{
- array_len = 0;
+ gint32 v;
+ v = g_memory_buffer_read_int32 (buf);
+ ret = g_variant_new_handle (v);
}
- else
+ break;
+
+ case 'a': /* G_VARIANT_TYPE_ARRAY */
+ ensure_input_padding (buf, 4);
+
+ /* If we are only aligning for this array type, it is the child type of
+ * another array, which is empty. So, we do not need to add padding for
+ * this nonexistent array's elements: we only need to align for this
+ * array itself (4 bytes). See
+ * <https://bugzilla.gnome.org/show_bug.cgi?id=673612>.
+ */
+ if (!just_align)
{
- array_len = g_data_input_stream_read_uint32 (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
+ guint32 array_len;
+ const GVariantType *element_type;
+ guint fixed_size;
+
+ array_len = g_memory_buffer_read_uint32 (buf);
is_leaf = FALSE;
#ifdef DEBUG_SERIALIZER
g_set_error (&local_error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Encountered array of length %u bytes. Maximum length is 2<<26 bytes."),
+ g_dngettext (GETTEXT_PACKAGE,
+ "Encountered array of length %u byte. Maximum length is 2<<26 bytes (64 MiB).",
+ "Encountered array of length %u bytes. Maximum length is 2<<26 bytes (64 MiB).",
+ array_len),
array_len);
goto fail;
}
- }
- g_variant_builder_init (&builder, type);
- element_type = g_variant_type_element (type);
+ element_type = g_variant_type_element (type);
+ fixed_size = get_type_fixed_size (element_type);
- if (array_len == 0)
- {
- GVariant *item;
- item = parse_value_from_blob (mis,
- dis,
- element_type,
- TRUE,
- indent + 2,
- &local_error);
- g_assert (item == NULL);
- }
- else
- {
- /* TODO: optimize array of primitive types */
- offset = g_seekable_tell (G_SEEKABLE (mis));
- target = offset + array_len;
- while (offset < target)
+ /* Fast-path the cases like 'ay', etc. */
+ if (fixed_size != 0)
{
- GVariant *item;
- item = parse_value_from_blob (mis,
- dis,
- element_type,
- FALSE,
- indent + 2,
- &local_error);
- if (item == NULL)
+ gconstpointer array_data;
+
+ if (array_len % fixed_size != 0)
{
- g_variant_builder_clear (&builder);
+ g_set_error (&local_error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Encountered array of type 'a%c', expected to have a length a multiple "
+ "of %u bytes, but found to be %u bytes in length"),
+ g_variant_type_peek_string (element_type)[0], fixed_size, array_len);
goto fail;
}
- g_variant_builder_add_value (&builder, item);
- g_variant_unref (item);
- offset = g_seekable_tell (G_SEEKABLE (mis));
+
+ ensure_input_padding (buf, fixed_size);
+ array_data = read_bytes (buf, array_len, &local_error);
+ if (array_data == NULL)
+ goto fail;
+
+ ret = g_variant_new_fixed_array (element_type, array_data, array_len / fixed_size, fixed_size);
+
+ if (g_memory_buffer_is_byteswapped (buf))
+ {
+ GVariant *tmp = g_variant_ref_sink (ret);
+ ret = g_variant_byteswap (tmp);
+ g_variant_unref (tmp);
+ }
}
- }
+ else
+ {
+ GVariantBuilder builder;
+ goffset offset;
+ goffset target;
- if (!just_align)
- {
- ret = g_variant_builder_end (&builder);
+ g_variant_builder_init (&builder, type);
+
+ if (array_len == 0)
+ {
+ GVariant *item;
+ item = parse_value_from_blob (buf,
+ element_type,
+ TRUE,
+ indent + 2,
+ NULL);
+ g_assert (item == NULL);
+ }
+ else
+ {
+ offset = buf->pos;
+ target = offset + array_len;
+ while (offset < target)
+ {
+ GVariant *item;
+ item = parse_value_from_blob (buf,
+ element_type,
+ FALSE,
+ indent + 2,
+ &local_error);
+ if (item == NULL)
+ {
+ g_variant_builder_clear (&builder);
+ goto fail;
+ }
+ g_variant_builder_add_value (&builder, item);
+ g_variant_unref (item);
+ offset = buf->pos;
+ }
+ }
+
+ ret = g_variant_builder_end (&builder);
+ }
}
- else
+ break;
+
+ default:
+ if (g_variant_type_is_dict_entry (type))
{
- g_variant_builder_clear (&builder);
- }
- }
- else if (g_variant_type_is_dict_entry (type))
- {
- const GVariantType *key_type;
- const GVariantType *value_type;
- GVariant *key;
- GVariant *value;
+ const GVariantType *key_type;
+ const GVariantType *value_type;
+ GVariant *key;
+ GVariant *value;
- if (!ensure_input_padding (mis, 8, &local_error))
- goto fail;
+ ensure_input_padding (buf, 8);
- is_leaf = FALSE;
+ is_leaf = FALSE;
#ifdef DEBUG_SERIALIZER
- g_print ("\n");
+ g_print ("\n");
#endif /* DEBUG_SERIALIZER */
- if (!just_align)
- {
- key_type = g_variant_type_key (type);
- key = parse_value_from_blob (mis,
- dis,
- key_type,
- FALSE,
- indent + 2,
- &local_error);
- if (key == NULL)
- goto fail;
- value_type = g_variant_type_value (type);
- value = parse_value_from_blob (mis,
- dis,
- value_type,
- FALSE,
- indent + 2,
- &local_error);
- if (value == NULL)
+ if (!just_align)
{
+ key_type = g_variant_type_key (type);
+ key = parse_value_from_blob (buf,
+ key_type,
+ FALSE,
+ indent + 2,
+ &local_error);
+ if (key == NULL)
+ goto fail;
+ value_type = g_variant_type_value (type);
+ value = parse_value_from_blob (buf,
+ value_type,
+ FALSE,
+ indent + 2,
+ &local_error);
+ if (value == NULL)
+ {
+ g_variant_unref (key);
+ goto fail;
+ }
+ ret = g_variant_new_dict_entry (key, value);
g_variant_unref (key);
- goto fail;
+ g_variant_unref (value);
}
- ret = g_variant_new_dict_entry (key, value);
- g_variant_unref (key);
- g_variant_unref (value);
}
- }
- else if (g_variant_type_is_tuple (type))
- {
- if (!ensure_input_padding (mis, 8, &local_error))
- goto fail;
+ else if (g_variant_type_is_tuple (type))
+ {
+ ensure_input_padding (buf, 8);
- is_leaf = FALSE;
+ is_leaf = FALSE;
#ifdef DEBUG_SERIALIZER
- g_print ("\n");
+ g_print ("\n");
#endif /* DEBUG_SERIALIZER */
- if (!just_align)
- {
- const GVariantType *element_type;
- GVariantBuilder builder;
-
- g_variant_builder_init (&builder, type);
- element_type = g_variant_type_first (type);
- while (element_type != NULL)
+ if (!just_align)
{
- GVariant *item;
- item = parse_value_from_blob (mis,
- dis,
- element_type,
- FALSE,
- indent + 2,
- &local_error);
- if (item == NULL)
+ const GVariantType *element_type;
+ GVariantBuilder builder;
+
+ g_variant_builder_init (&builder, type);
+ element_type = g_variant_type_first (type);
+ while (element_type != NULL)
{
- g_variant_builder_clear (&builder);
- goto fail;
- }
- g_variant_builder_add_value (&builder, item);
- g_variant_unref (item);
+ GVariant *item;
+ item = parse_value_from_blob (buf,
+ element_type,
+ FALSE,
+ indent + 2,
+ &local_error);
+ if (item == NULL)
+ {
+ g_variant_builder_clear (&builder);
+ goto fail;
+ }
+ g_variant_builder_add_value (&builder, item);
+ g_variant_unref (item);
- element_type = g_variant_type_next (element_type);
+ element_type = g_variant_type_next (element_type);
+ }
+ ret = g_variant_builder_end (&builder);
}
- ret = g_variant_builder_end (&builder);
}
- }
- else if (g_variant_type_is_variant (type))
- {
- is_leaf = FALSE;
+ else if (g_variant_type_is_variant (type))
+ {
+ is_leaf = FALSE;
#ifdef DEBUG_SERIALIZER
- g_print ("\n");
+ g_print ("\n");
#endif /* DEBUG_SERIALIZER */
- if (!just_align)
- {
- guchar siglen;
- gchar *sig;
- GVariantType *variant_type;
- GVariant *value;
-
- siglen = g_data_input_stream_read_byte (dis, NULL, &local_error);
- if (local_error != NULL)
- goto fail;
- sig = read_string (mis, dis, (gsize) siglen, &local_error);
- if (sig == NULL)
- goto fail;
- if (!g_variant_is_signature (sig))
+ if (!just_align)
{
- g_set_error (&local_error,
- G_IO_ERROR,
- G_IO_ERROR_INVALID_ARGUMENT,
- _("Parsed value `%s' for variant is not a valid D-Bus signature"),
- sig);
- g_free (sig);
- goto fail;
+ guchar siglen;
+ const gchar *sig;
+ GVariantType *variant_type;
+ GVariant *value;
+
+ siglen = g_memory_buffer_read_byte (buf);
+ sig = read_string (buf, (gsize) siglen, &local_error);
+ if (sig == NULL)
+ goto fail;
+ if (!g_variant_is_signature (sig))
+ {
+ g_set_error (&local_error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Parsed value '%s' for variant is not a valid D-Bus signature"),
+ sig);
+ goto fail;
+ }
+ variant_type = g_variant_type_new (sig);
+ value = parse_value_from_blob (buf,
+ variant_type,
+ FALSE,
+ indent + 2,
+ &local_error);
+ g_variant_type_free (variant_type);
+ if (value == NULL)
+ goto fail;
+ ret = g_variant_new_variant (value);
+ g_variant_unref (value);
}
- variant_type = g_variant_type_new (sig);
- g_free (sig);
- value = parse_value_from_blob (mis,
- dis,
- variant_type,
- FALSE,
- indent + 2,
- &local_error);
- g_variant_type_free (variant_type);
- if (value == NULL)
- goto fail;
- ret = g_variant_new_variant (value);
- g_variant_unref (value);
}
- }
- else
- {
- gchar *s;
- s = g_variant_type_dup_string (type);
- g_set_error (&local_error,
- G_IO_ERROR,
- G_IO_ERROR_INVALID_ARGUMENT,
- _("Error deserializing GVariant with type-string `%s' from the D-Bus wire format"),
- s);
- g_free (s);
- goto fail;
+ else
+ {
+ gchar *s;
+ s = g_variant_type_dup_string (type);
+ g_set_error (&local_error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Error deserializing GVariant with type string '%s' from the D-Bus wire format"),
+ s);
+ g_free (s);
+ goto fail;
+ }
+ break;
}
g_assert ((just_align && ret == NULL) || (!just_align && ret != NULL));
g_free (s);
}
}
+#else
+ is_leaf = is_leaf; /* To avoid -Wunused-but-set-variable */
#endif /* DEBUG_SERIALIZER */
- /* sink the reference */
+ /* sink the reference, if floating */
if (ret != NULL)
- {
- g_assert (g_variant_is_floating (ret));
- g_variant_ref_sink (ret);
- }
+ g_variant_take_ref (ret);
return ret;
fail:
/**
* g_dbus_message_bytes_needed:
- * @blob: A blob represent a binary D-Bus message.
+ * @blob: (array length=blob_len) (element-type guint8): A blob represent a binary D-Bus message.
* @blob_len: The length of @blob (must be at least 16).
* @error: Return location for error or %NULL.
*
* Since: 2.26
*/
gssize
-g_dbus_message_bytes_needed (guchar *blob,
- gsize blob_len,
- GError **error)
+g_dbus_message_bytes_needed (guchar *blob,
+ gsize blob_len,
+ GError **error)
{
gssize ret;
/**
* g_dbus_message_new_from_blob:
- * @blob: A blob represent a binary D-Bus message.
+ * @blob: (array length=blob_len) (element-type guint8): A blob represent a binary D-Bus message.
* @blob_len: The length of @blob.
* @capabilities: A #GDBusCapabilityFlags describing what protocol features are supported.
* @error: Return location for error or %NULL.
*
- * Creates a new #GDBusMessage from the data stored at @blob.
+ * Creates a new #GDBusMessage from the data stored at @blob. The byte
+ * order that the message was in can be retrieved using
+ * g_dbus_message_get_byte_order().
*
* Returns: A new #GDBusMessage or %NULL if @error is set. Free with
* g_object_unref().
GError **error)
{
gboolean ret;
- GMemoryInputStream *mis;
- GDataInputStream *dis;
+ GMemoryBuffer mbuf;
GDBusMessage *message;
guchar endianness;
guchar major_protocol_version;
- GDataStreamByteOrder byte_order;
guint32 message_body_len;
GVariant *headers;
GVariant *item;
message = g_dbus_message_new ();
- mis = G_MEMORY_INPUT_STREAM (g_memory_input_stream_new_from_data (blob, blob_len, NULL));
- dis = g_data_input_stream_new (G_INPUT_STREAM (mis));
+ memset (&mbuf, 0, sizeof (mbuf));
+ mbuf.data = (gchar *)blob;
+ mbuf.len = mbuf.valid_len = blob_len;
- endianness = g_data_input_stream_read_byte (dis, NULL, NULL);
+ endianness = g_memory_buffer_read_byte (&mbuf);
switch (endianness)
{
case 'l':
- byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
+ message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_LITTLE_ENDIAN;
break;
case 'B':
- byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
+ message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_BIG_ENDIAN;
break;
default:
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Invalid endianness value. Expected 'l' or 'B' but found '%c' (%d)"),
- endianness, endianness);
+ _("Invalid endianness value. Expected 0x6c ('l') or 0x42 ('B') but found value 0x%02x"),
+ endianness);
goto out;
}
- g_data_input_stream_set_byte_order (dis, byte_order);
- message->type = g_data_input_stream_read_byte (dis, NULL, NULL);
- message->flags = g_data_input_stream_read_byte (dis, NULL, NULL);
- major_protocol_version = g_data_input_stream_read_byte (dis, NULL, NULL);
+ message->type = g_memory_buffer_read_byte (&mbuf);
+ message->flags = g_memory_buffer_read_byte (&mbuf);
+ major_protocol_version = g_memory_buffer_read_byte (&mbuf);
if (major_protocol_version != 1)
{
g_set_error (error,
major_protocol_version);
goto out;
}
- message_body_len = g_data_input_stream_read_uint32 (dis, NULL, NULL);
- message->serial = g_data_input_stream_read_uint32 (dis, NULL, NULL);
+ message_body_len = g_memory_buffer_read_uint32 (&mbuf);
+ message->serial = g_memory_buffer_read_uint32 (&mbuf);
#ifdef DEBUG_SERIALIZER
g_print ("Parsing blob (blob_len = 0x%04x bytes)\n", (gint) blob_len);
#ifdef DEBUG_SERIALIZER
g_print ("Parsing headers (blob_len = 0x%04x bytes)\n", (gint) blob_len);
#endif /* DEBUG_SERIALIZER */
- headers = parse_value_from_blob (mis,
- dis,
+ headers = parse_value_from_blob (&mbuf,
G_VARIANT_TYPE ("a{yv}"),
FALSE,
2,
signature_str = g_variant_get_string (signature, &signature_str_len);
- /* signature but no body */
- if (message_body_len == 0 && signature_str_len > 0)
- {
- g_set_error (error,
- G_IO_ERROR,
- G_IO_ERROR_INVALID_ARGUMENT,
- _("Signature header with signature `%s' found but message body is empty"),
- signature_str);
- goto out;
- }
- else if (signature_str_len > 0)
+ /* signature but no body */
+ if (message_body_len == 0 && signature_str_len > 0)
+ {
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Signature header with signature '%s' found but message body is empty"),
+ signature_str);
+ goto out;
+ }
+ else if (signature_str_len > 0)
+ {
+ GVariantType *variant_type;
+ gchar *tupled_signature_str;
+
+ if (!g_variant_is_signature (signature_str))
+ {
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Parsed value '%s' is not a valid D-Bus signature (for body)"),
+ signature_str);
+ goto out;
+ }
+ tupled_signature_str = g_strdup_printf ("(%s)", signature_str);
+ variant_type = g_variant_type_new (tupled_signature_str);
+ g_free (tupled_signature_str);
+#ifdef DEBUG_SERIALIZER
+ g_print ("Parsing body (blob_len = 0x%04x bytes)\n", (gint) blob_len);
+#endif /* DEBUG_SERIALIZER */
+ message->body = parse_value_from_blob (&mbuf,
+ variant_type,
+ FALSE,
+ 2,
+ error);
+ g_variant_type_free (variant_type);
+ if (message->body == NULL)
+ goto out;
+ }
+ }
+ else
+ {
+ /* no signature, this is only OK if the body is empty */
+ if (message_body_len != 0)
+ {
+ /* G_GUINT32_FORMAT doesn't work with gettext, just use %u */
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ g_dngettext (GETTEXT_PACKAGE,
+ "No signature header in message but the message body is %u byte",
+ "No signature header in message but the message body is %u bytes",
+ message_body_len),
+ message_body_len);
+ goto out;
+ }
+ }
+
+ if (!validate_headers (message, error))
+ {
+ g_prefix_error (error, _("Cannot deserialize message: "));
+ goto out;
+ }
+
+ ret = TRUE;
+
+ out:
+ if (ret)
+ {
+ return message;
+ }
+ else
+ {
+ if (message != NULL)
+ g_object_unref (message);
+ return NULL;
+ }
+}
+
+/* ---------------------------------------------------------------------------------------------------- */
+
+/*
+ * _g_dbus_message_new_from_kdbus_items:
+ *
+ * Single kdbus message may contain zero, one or more items
+ * (PAYLOAD_VEC or PAYLOAD_MEMFD), so we need this function
+ * (only for kdbus transport purposes) to parse them to GDBusMessage.
+ * kdbus_msg_items list contain list of pointer + data pair for each received item.
+ *
+ * TODO: Add support for two and more items
+ */
+
+GDBusMessage *
+_g_dbus_message_new_from_kdbus_items (GSList *kdbus_msg_items,
+ GError **error)
+{
+ gboolean ret;
+ GMemoryBuffer mbuf;
+ GDBusMessage *message;
+ guchar endianness;
+ guchar major_protocol_version;
+ guint32 message_body_len;
+ guint32 message_headers_len;
+ GVariant *headers;
+ GVariant *item;
+ GVariantIter iter;
+ GVariant *signature;
+
+ ret = FALSE;
+
+ g_return_val_if_fail (kdbus_msg_items != NULL, NULL);
+ g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+
+ message = g_dbus_message_new ();
+ memset (&mbuf, 0, sizeof (mbuf));
+
+ /*
+ * MESSAGE HEADER
+ * message header in its entirety must be contained in a first single item
+ */
+ mbuf.data = ((msg_part*)kdbus_msg_items->data)->data;
+ mbuf.len = mbuf.valid_len = ((msg_part*)kdbus_msg_items->data)->size;
+
+ endianness = g_memory_buffer_read_byte (&mbuf);
+ switch (endianness)
+ {
+ case 'l':
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
+ message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_LITTLE_ENDIAN;
+ break;
+ case 'B':
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
+ message->byte_order = G_DBUS_MESSAGE_BYTE_ORDER_BIG_ENDIAN;
+ break;
+ default:
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Invalid endianness value. Expected 0x6c ('l') or 0x42 ('B') but found value 0x%02x"),
+ endianness);
+ goto out;
+ }
+
+ message->type = g_memory_buffer_read_byte (&mbuf);
+ message->flags = g_memory_buffer_read_byte (&mbuf);
+ major_protocol_version = g_memory_buffer_read_byte (&mbuf);
+
+ if (major_protocol_version != 2)
+ {
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Invalid major protocol version. Expected 2 but found %d"),
+ major_protocol_version);
+ goto out;
+ }
+
+ message_body_len = g_memory_buffer_read_uint32 (&mbuf);
+ message->serial = g_memory_buffer_read_uint32 (&mbuf);
+
+ message_headers_len = g_memory_buffer_read_uint32 (&mbuf);
+ headers = g_variant_new_from_data (G_VARIANT_TYPE ("a{yv}"),
+ mbuf.data + mbuf.pos,
+ message_headers_len,
+ TRUE,
+ NULL,
+ NULL);
+ mbuf.pos += message_headers_len;
+
+ if (headers == NULL)
+ goto out;
+ g_variant_iter_init (&iter, headers);
+ while ((item = g_variant_iter_next_value (&iter)) != NULL)
+ {
+ guchar header_field;
+ GVariant *value;
+ g_variant_get (item,
+ "{yv}",
+ &header_field,
+ &value);
+ g_dbus_message_set_header (message, header_field, value);
+ g_variant_unref (value);
+ g_variant_unref (item);
+ }
+ g_variant_unref (headers);
+
+ signature = g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_SIGNATURE);
+ if (signature != NULL)
+ {
+ const gchar *signature_str;
+ gsize signature_str_len;
+
+ signature_str = g_variant_get_string (signature, &signature_str_len);
+
+ if (signature_str_len > 0)
{
GVariantType *variant_type;
gchar *tupled_signature_str;
+ gchar *data = NULL;
+ gsize size = NULL;
+
if (!g_variant_is_signature (signature_str))
{
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Parsed value `%s' is not a valid D-Bus signature (for body)"),
+ _("Parsed value '%s' is not a valid D-Bus signature (for body)"),
signature_str);
goto out;
}
tupled_signature_str = g_strdup_printf ("(%s)", signature_str);
variant_type = g_variant_type_new (tupled_signature_str);
g_free (tupled_signature_str);
-#ifdef DEBUG_SERIALIZER
- g_print ("Parsing body (blob_len = 0x%04x bytes)\n", (gint) blob_len);
-#endif /* DEBUG_SERIALIZER */
- message->body = parse_value_from_blob (mis,
- dis,
- variant_type,
- FALSE,
- 2,
- error);
+
+ /*
+ * MESSAGE BODY
+ */
+
+ if (g_slist_length(kdbus_msg_items) == 1)
+ {
+ /* if kdbus_msg_items has only one element, head and body are
+ contained in a single PAYLOAD_VEC item */
+ ensure_input_padding (&mbuf,8);
+ data = mbuf.data + mbuf.pos;
+ size = message_body_len;
+ }
+ else if (g_slist_length(kdbus_msg_items) > 1)
+ {
+ /* message consists two or more items
+ TODO: Add support for three and more items */
+ data = ((msg_part*)g_slist_next(kdbus_msg_items)->data)->data;
+ size = ((msg_part*)g_slist_next(kdbus_msg_items)->data)->size;
+ }
+ else
+ {
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("[KDBUS] Received message is not valid"));
+ goto out;
+ }
+
+ message->body = g_variant_new_from_data (variant_type,
+ data,
+ size,
+ TRUE,
+ NULL,
+ NULL);
+
g_variant_type_free (variant_type);
if (message->body == NULL)
goto out;
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("No signature header in message but the message body is %u bytes"),
+ g_dngettext (GETTEXT_PACKAGE,
+ "No signature header in message but the message body is %u byte",
+ "No signature header in message but the message body is %u bytes",
+ message_body_len),
message_body_len);
goto out;
}
}
+ if (!validate_headers (message, error))
+ {
+ g_prefix_error (error, _("Cannot deserialize message: "));
+ goto out;
+ }
ret = TRUE;
out:
- g_object_unref (dis);
- g_object_unref (mis);
-
if (ret)
{
return message;
}
}
-/* ---------------------------------------------------------------------------------------------------- */
-
static gsize
-ensure_output_padding (GMemoryOutputStream *mos,
- GDataOutputStream *dos,
- gsize padding_size)
+ensure_output_padding (GMemoryBuffer *mbuf,
+ gsize padding_size)
{
gsize offset;
gsize wanted_offset;
gsize padding_needed;
guint n;
- offset = g_memory_output_stream_get_data_size (mos);
+ offset = mbuf->pos;
wanted_offset = ((offset + padding_size - 1) / padding_size) * padding_size;
padding_needed = wanted_offset - offset;
for (n = 0; n < padding_needed; n++)
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_memory_buffer_put_byte (mbuf, '\0');
return padding_needed;
}
/* note that value can be NULL for e.g. empty arrays - type is never NULL */
static gboolean
-append_value_to_blob (GVariant *value,
- const GVariantType *type,
- GMemoryOutputStream *mos,
- GDataOutputStream *dos,
- gsize *out_padding_added,
- GError **error)
+append_value_to_blob (GVariant *value,
+ const GVariantType *type,
+ GMemoryBuffer *mbuf,
+ gsize *out_padding_added,
+ GError **error)
{
gsize padding_added;
+ const gchar *type_string;
+
+ type_string = g_variant_type_peek_string (type);
padding_added = 0;
- if (g_variant_type_equal (type, G_VARIANT_TYPE_BOOLEAN))
+ switch (type_string[0])
{
- padding_added = ensure_output_padding (mos, dos, 4);
+ case 'b': /* G_VARIANT_TYPE_BOOLEAN */
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gboolean v = g_variant_get_boolean (value);
- g_data_output_stream_put_uint32 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint32 (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_BYTE))
- {
+ break;
+
+ case 'y': /* G_VARIANT_TYPE_BYTE */
if (value != NULL)
{
guint8 v = g_variant_get_byte (value);
- g_data_output_stream_put_byte (dos, v, NULL, NULL);
+ g_memory_buffer_put_byte (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT16))
- {
- padding_added = ensure_output_padding (mos, dos, 2);
+ break;
+
+ case 'n': /* G_VARIANT_TYPE_INT16 */
+ padding_added = ensure_output_padding (mbuf, 2);
if (value != NULL)
{
gint16 v = g_variant_get_int16 (value);
- g_data_output_stream_put_int16 (dos, v, NULL, NULL);
+ g_memory_buffer_put_int16 (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT16))
- {
- padding_added = ensure_output_padding (mos, dos, 2);
+ break;
+
+ case 'q': /* G_VARIANT_TYPE_UINT16 */
+ padding_added = ensure_output_padding (mbuf, 2);
if (value != NULL)
{
guint16 v = g_variant_get_uint16 (value);
- g_data_output_stream_put_uint16 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint16 (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT32))
- {
- padding_added = ensure_output_padding (mos, dos, 4);
+ break;
+
+ case 'i': /* G_VARIANT_TYPE_INT32 */
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gint32 v = g_variant_get_int32 (value);
- g_data_output_stream_put_int32 (dos, v, NULL, NULL);
+ g_memory_buffer_put_int32 (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT32))
- {
- padding_added = ensure_output_padding (mos, dos, 4);
+ break;
+
+ case 'u': /* G_VARIANT_TYPE_UINT32 */
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
guint32 v = g_variant_get_uint32 (value);
- g_data_output_stream_put_uint32 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint32 (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_INT64))
- {
- padding_added = ensure_output_padding (mos, dos, 8);
+ break;
+
+ case 'x': /* G_VARIANT_TYPE_INT64 */
+ padding_added = ensure_output_padding (mbuf, 8);
if (value != NULL)
{
gint64 v = g_variant_get_int64 (value);
- g_data_output_stream_put_int64 (dos, v, NULL, NULL);
+ g_memory_buffer_put_int64 (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_UINT64))
- {
- padding_added = ensure_output_padding (mos, dos, 8);
+ break;
+
+ case 't': /* G_VARIANT_TYPE_UINT64 */
+ padding_added = ensure_output_padding (mbuf, 8);
if (value != NULL)
{
guint64 v = g_variant_get_uint64 (value);
- g_data_output_stream_put_uint64 (dos, v, NULL, NULL);
+ g_memory_buffer_put_uint64 (mbuf, v);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_DOUBLE))
- {
- padding_added = ensure_output_padding (mos, dos, 8);
+ break;
+
+ case 'd': /* G_VARIANT_TYPE_DOUBLE */
+ padding_added = ensure_output_padding (mbuf, 8);
if (value != NULL)
{
- guint64 *encoded;
- gdouble v = g_variant_get_double (value);
- /* TODO: hmm */
- encoded = (guint64 *) &v;
- g_data_output_stream_put_uint64 (dos, *encoded, NULL, NULL);
+ union {
+ guint64 v_uint64;
+ gdouble v_double;
+ } u;
+ G_STATIC_ASSERT (sizeof (gdouble) == sizeof (guint64));
+ u.v_double = g_variant_get_double (value);
+ g_memory_buffer_put_uint64 (mbuf, u.v_uint64);
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_STRING))
- {
- padding_added = ensure_output_padding (mos, dos, 4);
+ break;
+
+ case 's': /* G_VARIANT_TYPE_STRING */
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
gsize len;
- const gchar *v = g_variant_get_string (value, &len);
- g_data_output_stream_put_uint32 (dos, len, NULL, NULL);
- g_data_output_stream_put_string (dos, v, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ const gchar *v;
+ const gchar *end;
+ v = g_variant_get_string (value, &len);
+ g_assert (g_utf8_validate (v, -1, &end) && (end == v + len));
+ g_memory_buffer_put_uint32 (mbuf, len);
+ g_memory_buffer_put_string (mbuf, v);
+ g_memory_buffer_put_byte (mbuf, '\0');
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_OBJECT_PATH))
- {
- padding_added = ensure_output_padding (mos, dos, 4);
+ break;
+
+ case 'o': /* G_VARIANT_TYPE_OBJECT_PATH */
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
- /* TODO: validate object path */
gsize len;
const gchar *v = g_variant_get_string (value, &len);
- g_data_output_stream_put_uint32 (dos, len, NULL, NULL);
- g_data_output_stream_put_string (dos, v, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_assert (g_variant_is_object_path (v));
+ g_memory_buffer_put_uint32 (mbuf, len);
+ g_memory_buffer_put_string (mbuf, v);
+ g_memory_buffer_put_byte (mbuf, '\0');
}
- }
- else if (g_variant_type_equal (type, G_VARIANT_TYPE_SIGNATURE))
- {
+ break;
+
+ case 'g': /* G_VARIANT_TYPE_SIGNATURE */
if (value != NULL)
{
- /* TODO: validate signature (including max len being 255) */
gsize len;
const gchar *v = g_variant_get_string (value, &len);
- g_data_output_stream_put_byte (dos, len, NULL, NULL);
- g_data_output_stream_put_string (dos, v, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
+ g_assert (g_variant_is_signature (v));
+ g_memory_buffer_put_byte (mbuf, len);
+ g_memory_buffer_put_string (mbuf, v);
+ g_memory_buffer_put_byte (mbuf, '\0');
}
- }
- else if (g_variant_type_is_array (type))
- {
- GVariant *item;
- GVariantIter iter;
- goffset array_len_offset;
- goffset array_payload_begin_offset;
- goffset cur_offset;
- gsize array_len;
+ break;
- padding_added = ensure_output_padding (mos, dos, 4);
+ case 'h': /* G_VARIANT_TYPE_HANDLE */
+ padding_added = ensure_output_padding (mbuf, 4);
if (value != NULL)
{
- /* array length - will be filled in later */
- array_len_offset = g_memory_output_stream_get_data_size (mos);
- g_data_output_stream_put_uint32 (dos, 0xF00DFACE, NULL, NULL);
-
- /* From the D-Bus spec:
- *
- * "A UINT32 giving the length of the array data in bytes,
- * followed by alignment padding to the alignment boundary of
- * the array element type, followed by each array element. The
- * array length is from the end of the alignment padding to
- * the end of the last element, i.e. it does not include the
- * padding after the length, or any padding after the last
- * element."
- *
- * Thus, we need to count how much padding the first element
- * contributes and subtract that from the array length.
- */
- array_payload_begin_offset = g_memory_output_stream_get_data_size (mos);
+ gint32 v = g_variant_get_handle (value);
+ g_memory_buffer_put_int32 (mbuf, v);
+ }
+ break;
- if (g_variant_n_children (value) == 0)
- {
- gsize padding_added_for_item;
- if (!append_value_to_blob (NULL,
- g_variant_type_element (type),
- mos,
- dos,
- &padding_added_for_item,
- error))
- goto fail;
- array_payload_begin_offset += padding_added_for_item;
- }
- else
+ case 'a': /* G_VARIANT_TYPE_ARRAY */
+ {
+ const GVariantType *element_type;
+ GVariant *item;
+ GVariantIter iter;
+ goffset array_len_offset;
+ goffset array_payload_begin_offset;
+ goffset cur_offset;
+ gsize array_len;
+ guint fixed_size;
+
+ padding_added = ensure_output_padding (mbuf, 4);
+ if (value != NULL)
+ {
+ /* array length - will be filled in later */
+ array_len_offset = mbuf->valid_len;
+ g_memory_buffer_put_uint32 (mbuf, 0xF00DFACE);
+
+ /* From the D-Bus spec:
+ *
+ * "A UINT32 giving the length of the array data in bytes,
+ * followed by alignment padding to the alignment boundary of
+ * the array element type, followed by each array element. The
+ * array length is from the end of the alignment padding to
+ * the end of the last element, i.e. it does not include the
+ * padding after the length, or any padding after the last
+ * element."
+ *
+ * Thus, we need to count how much padding the first element
+ * contributes and subtract that from the array length.
+ */
+ array_payload_begin_offset = mbuf->valid_len;
+
+ element_type = g_variant_type_element (type);
+ fixed_size = get_type_fixed_size (element_type);
+
+ if (g_variant_n_children (value) == 0)
+ {
+ gsize padding_added_for_item;
+ if (!append_value_to_blob (NULL,
+ element_type,
+ mbuf,
+ &padding_added_for_item,
+ error))
+ goto fail;
+ array_payload_begin_offset += padding_added_for_item;
+ }
+ else if (fixed_size != 0)
+ {
+ GVariant *use_value;
+
+ if (g_memory_buffer_is_byteswapped (mbuf))
+ use_value = g_variant_byteswap (value);
+ else
+ use_value = g_variant_ref (value);
+
+ array_payload_begin_offset += ensure_output_padding (mbuf, fixed_size);
+
+ array_len = g_variant_get_size (use_value);
+ g_memory_buffer_write (mbuf, g_variant_get_data (use_value), array_len);
+ g_variant_unref (use_value);
+ }
+ else
+ {
+ guint n;
+ n = 0;
+ g_variant_iter_init (&iter, value);
+ while ((item = g_variant_iter_next_value (&iter)) != NULL)
+ {
+ gsize padding_added_for_item;
+ if (!append_value_to_blob (item,
+ g_variant_get_type (item),
+ mbuf,
+ &padding_added_for_item,
+ error))
+ {
+ g_variant_unref (item);
+ goto fail;
+ }
+ g_variant_unref (item);
+ if (n == 0)
+ {
+ array_payload_begin_offset += padding_added_for_item;
+ }
+ n++;
+ }
+ }
+
+ cur_offset = mbuf->valid_len;
+ array_len = cur_offset - array_payload_begin_offset;
+ mbuf->pos = array_len_offset;
+
+ g_memory_buffer_put_uint32 (mbuf, array_len);
+ mbuf->pos = cur_offset;
+ }
+ }
+ break;
+
+ default:
+ if (g_variant_type_is_dict_entry (type) || g_variant_type_is_tuple (type))
+ {
+ padding_added = ensure_output_padding (mbuf, 8);
+ if (value != NULL)
{
- guint n;
- n = 0;
+ GVariant *item;
+ GVariantIter iter;
g_variant_iter_init (&iter, value);
while ((item = g_variant_iter_next_value (&iter)) != NULL)
{
- gsize padding_added_for_item;
if (!append_value_to_blob (item,
g_variant_get_type (item),
- mos,
- dos,
- &padding_added_for_item,
+ mbuf,
+ NULL,
error))
{
g_variant_unref (item);
goto fail;
}
g_variant_unref (item);
- if (n == 0)
- {
- array_payload_begin_offset += padding_added_for_item;
- }
- n++;
}
}
-
- cur_offset = g_memory_output_stream_get_data_size (mos);
-
- array_len = cur_offset - array_payload_begin_offset;
-
- if (!g_seekable_seek (G_SEEKABLE (mos), array_len_offset, G_SEEK_SET, NULL, error))
- goto fail;
-
- g_data_output_stream_put_uint32 (dos, array_len, NULL, NULL);
-
- if (!g_seekable_seek (G_SEEKABLE (mos), cur_offset, G_SEEK_SET, NULL, error))
- goto fail;
}
- }
- else if (g_variant_type_is_dict_entry (type) || g_variant_type_is_tuple (type))
- {
- padding_added = ensure_output_padding (mos, dos, 8);
- if (value != NULL)
+ else if (g_variant_type_is_variant (type))
{
- GVariant *item;
- GVariantIter iter;
- g_variant_iter_init (&iter, value);
- while ((item = g_variant_iter_next_value (&iter)) != NULL)
+ if (value != NULL)
{
- if (!append_value_to_blob (item,
- g_variant_get_type (item),
- mos,
- dos,
+ GVariant *child;
+ const gchar *signature;
+ child = g_variant_get_child_value (value, 0);
+ signature = g_variant_get_type_string (child);
+ g_memory_buffer_put_byte (mbuf, strlen (signature));
+ g_memory_buffer_put_string (mbuf, signature);
+ g_memory_buffer_put_byte (mbuf, '\0');
+ if (!append_value_to_blob (child,
+ g_variant_get_type (child),
+ mbuf,
NULL,
error))
{
- g_variant_unref (item);
+ g_variant_unref (child);
goto fail;
}
- g_variant_unref (item);
+ g_variant_unref (child);
}
}
- }
- else if (g_variant_type_is_variant (type))
- {
- if (value != NULL)
+ else
{
- GVariant *child;
- const gchar *signature;
- child = g_variant_get_child_value (value, 0);
- signature = g_variant_get_type_string (child);
- /* TODO: validate signature (including max len being 255) */
- g_data_output_stream_put_byte (dos, strlen (signature), NULL, NULL);
- g_data_output_stream_put_string (dos, signature, NULL, NULL);
- g_data_output_stream_put_byte (dos, '\0', NULL, NULL);
- if (!append_value_to_blob (child,
- g_variant_get_type (child),
- mos,
- dos,
- NULL,
- error))
- {
- g_variant_unref (child);
- goto fail;
- }
- g_variant_unref (child);
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Error serializing GVariant with type string '%s' to the D-Bus wire format"),
+ g_variant_get_type_string (value));
+ goto fail;
}
- }
- else
- {
- g_set_error (error,
- G_IO_ERROR,
- G_IO_ERROR_INVALID_ARGUMENT,
- _("Error serializing GVariant with type-string `%s' to the D-Bus wire format"),
- g_variant_get_type_string (value));
- goto fail;
+ break;
}
if (out_padding_added != NULL)
}
static gboolean
-append_body_to_blob (GVariant *value,
- GMemoryOutputStream *mos,
- GDataOutputStream *dos,
- GError **error)
+append_body_to_blob (GVariant *value,
+ GMemoryBuffer *mbuf,
+ GError **error)
{
- gboolean ret;
GVariant *item;
GVariantIter iter;
- ret = FALSE;
-
if (!g_variant_is_of_type (value, G_VARIANT_TYPE_TUPLE))
{
g_set_error (error,
{
if (!append_value_to_blob (item,
g_variant_get_type (item),
- mos,
- dos,
+ mbuf,
NULL,
error))
{
/* ---------------------------------------------------------------------------------------------------- */
+/* [KDBUS]
+ * g_dbus_message_to_blob() will be replaced by new function only for kdbus transport
+ * purposes (this function will be able to create blob directly/unconditionally in memfd
+ * object, without making copy)
+ */
+
/**
* g_dbus_message_to_blob:
* @message: A #GDBusMessage.
* @capabilities: A #GDBusCapabilityFlags describing what protocol features are supported.
* @error: Return location for error.
*
- * Serializes @message to a blob.
+ * Serializes @message to a blob. The byte order returned by
+ * g_dbus_message_get_byte_order() will be used.
*
- * Returns: A pointer to a valid binary D-Bus message of @out_size bytes
- * generated by @message or %NULL if @error is set. Free with g_free().
+ * Returns: (array length=out_size) (transfer full): A pointer to a
+ * valid binary D-Bus message of @out_size bytes generated by @message
+ * or %NULL if @error is set. Free with g_free().
*
* Since: 2.26
*/
GDBusCapabilityFlags capabilities,
GError **error)
{
- GMemoryOutputStream *mos;
- GDataOutputStream *dos;
+ GMemoryBuffer mbuf;
guchar *ret;
gsize size;
- GDataStreamByteOrder byte_order;
goffset body_len_offset;
goffset body_start_offset;
gsize body_size;
+ gconstpointer message_body_data;
+ gsize message_body_size;
GVariant *header_fields;
+ gsize header_fields_size;
+ gconstpointer header_fields_data;
GVariantBuilder builder;
GHashTableIter hash_iter;
gpointer key;
g_return_val_if_fail (out_size != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
- mos = G_MEMORY_OUTPUT_STREAM (g_memory_output_stream_new (NULL, 0, g_realloc, g_free));
- dos = g_data_output_stream_new (G_OUTPUT_STREAM (mos));
+ /* temporary solution */
+ if (!message->major_protocol_version)
+ g_error ("message->major_protocol_version is not set");
+
+ if (message->major_protocol_version != 1 && message->major_protocol_version != 2)
+ {
+ g_set_error (error,
+ G_IO_ERROR,
+ G_IO_ERROR_INVALID_ARGUMENT,
+ _("Invalid major protocol version. Expected 1 or 2 but found %d"),
+ message->major_protocol_version);
+ goto out;
+ }
+
+ memset (&mbuf, 0, sizeof (mbuf));
+ mbuf.len = MIN_ARRAY_SIZE;
+ mbuf.data = g_malloc (mbuf.len);
- /* TODO: detect endianess... */
- byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
- g_data_output_stream_set_byte_order (dos, byte_order);
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_HOST_ENDIAN;
+ switch (message->byte_order)
+ {
+ case G_DBUS_MESSAGE_BYTE_ORDER_BIG_ENDIAN:
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_BIG_ENDIAN;
+ break;
+ case G_DBUS_MESSAGE_BYTE_ORDER_LITTLE_ENDIAN:
+ mbuf.byte_order = G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN;
+ break;
+ }
/* Core header */
- g_data_output_stream_put_byte (dos, byte_order == G_DATA_STREAM_BYTE_ORDER_LITTLE_ENDIAN ? 'l' : 'B', NULL, NULL);
- g_data_output_stream_put_byte (dos, message->type, NULL, NULL);
- g_data_output_stream_put_byte (dos, message->flags, NULL, NULL);
- g_data_output_stream_put_byte (dos, 1, NULL, NULL); /* major protocol version */
- body_len_offset = g_memory_output_stream_get_data_size (mos);
+ g_memory_buffer_put_byte (&mbuf, (guchar) message->byte_order);
+ g_memory_buffer_put_byte (&mbuf, message->type);
+ g_memory_buffer_put_byte (&mbuf, message->flags);
+
+ /* major protocol version */
+ g_memory_buffer_put_byte (&mbuf, message->major_protocol_version);
+
+ body_len_offset = mbuf.valid_len;
/* body length - will be filled in later */
- g_data_output_stream_put_uint32 (dos, 0xF00DFACE, NULL, NULL);
- g_data_output_stream_put_uint32 (dos, message->serial, NULL, NULL);
+ g_memory_buffer_put_uint32 (&mbuf, 0xF00DFACE);
+ g_memory_buffer_put_uint32 (&mbuf, message->serial);
num_fds_in_message = 0;
#ifdef G_OS_UNIX
num_fds_in_message = g_unix_fd_list_get_length (message->fd_list);
#endif
num_fds_according_to_header = g_dbus_message_get_num_unix_fds (message);
- /* TODO: check we have all the right header fields and that they are the correct value etc etc */
if (num_fds_in_message != num_fds_according_to_header)
{
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Message has %d fds but the header field indicates %d fds"),
+ _("Message has %d file descriptors but the header field indicates %d file descriptors"),
num_fds_in_message,
num_fds_according_to_header);
goto out;
}
+ if (!validate_headers (message, error))
+ {
+ g_prefix_error (error, _("Cannot serialize message: "));
+ goto out;
+ }
+
g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{yv}"));
g_hash_table_iter_init (&hash_iter, message->headers);
while (g_hash_table_iter_next (&hash_iter, &key, (gpointer) &header_value))
}
header_fields = g_variant_builder_end (&builder);
- if (!append_value_to_blob (header_fields,
- g_variant_get_type (header_fields),
- mos, dos,
- NULL,
- error))
+ /* header - dbus1 marshaliling */
+ if (message->major_protocol_version == 1)
{
- g_variant_unref (header_fields);
- goto out;
+ if (!append_value_to_blob (header_fields,
+ g_variant_get_type (header_fields),
+ &mbuf,
+ NULL,
+ error))
+ {
+ g_variant_unref (header_fields);
+ goto out;
+ }
+
+ }
+ /* header - GVariant marshalling */
+ else if (message->major_protocol_version == 2)
+ {
+ header_fields_data = g_variant_get_data (header_fields);
+ header_fields_size = g_variant_get_size (header_fields);
+
+ g_memory_buffer_put_uint32 (&mbuf, header_fields_size);
+ g_memory_buffer_write (&mbuf, header_fields_data, header_fields_size);
}
+
g_variant_unref (header_fields);
/* header size must be a multiple of 8 */
- ensure_output_padding (mos, dos, 8);
+ ensure_output_padding (&mbuf, 8);
- body_start_offset = g_memory_output_stream_get_data_size (mos);
+ body_start_offset = mbuf.valid_len;
signature = g_dbus_message_get_header (message, G_DBUS_MESSAGE_HEADER_FIELD_SIGNATURE);
signature_str = NULL;
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Message body has signature `%s' but there is no signature header"),
+ _("Message body has signature '%s' but there is no signature header"),
signature_str);
g_free (tupled_signature_str);
goto out;
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Message body has type signature `%s' but signature in the header field is `%s'"),
+ _("Message body has type signature '%s' but signature in the header field is '%s'"),
tupled_signature_str, g_variant_get_type_string (message->body));
g_free (tupled_signature_str);
goto out;
}
g_free (tupled_signature_str);
- if (!append_body_to_blob (message->body, mos, dos, error))
- goto out;
+
+ /* body - dbus1 marshaliling */
+ if (message->major_protocol_version == 1)
+ {
+ if (!append_body_to_blob (message->body, &mbuf, error))
+ goto out;
+ }
+#if 0
+ /* body - GVariant marshalling */
+ else if (message->major_protocol_version == 2)
+ {
+ message_body_data = g_variant_get_data (message->body);
+ message_body_size = g_variant_get_size (message->body);
+
+ g_memory_buffer_write (&mbuf, message_body_data, message_body_size);
+ }
+#endif
}
else
{
- if (signature != NULL)
+ if (signature != NULL && strlen (signature_str) > 0)
{
g_set_error (error,
G_IO_ERROR,
G_IO_ERROR_INVALID_ARGUMENT,
- _("Message body is empty but signature in the header field is `(%s)'"),
+ _("Message body is empty but signature in the header field is '(%s)'"),
signature_str);
goto out;
}
}
/* OK, we're done writing the message - set the body length */
- size = g_memory_output_stream_get_data_size (mos);
+ size = mbuf.valid_len;
body_size = size - body_start_offset;
- if (!g_seekable_seek (G_SEEKABLE (mos), body_len_offset, G_SEEK_SET, NULL, error))
- goto out;
+ mbuf.pos = body_len_offset;
- g_data_output_stream_put_uint32 (dos, body_size, NULL, NULL);
+ g_memory_buffer_put_uint32 (&mbuf, body_size);
*out_size = size;
- ret = g_memdup (g_memory_output_stream_get_data (mos), size);
+ ret = (guchar *)mbuf.data;
out:
- g_object_unref (dos);
- g_object_unref (mos);
-
return ret;
}
g_dbus_error_set_dbus_error (error,
error_name,
"",
- _("Error return with body of type `%s'"),
+ _("Error return with body of type '%s'"),
g_variant_get_type_string (body));
}
else
* The contents of the description has no ABI guarantees, the contents
* and formatting is subject to change at any time. Typical output
* looks something like this:
- * <programlisting>
+ * |[
* Type: method-call
* Flags: none
* Version: 0
* Body: ()
* UNIX File Descriptors:
* (none)
- * </programlisting>
+ * ]|
* or
- * <programlisting>
+ * |[
* Type: method-return
* Flags: no-reply-expected
* Version: 0
* Body: ()
* UNIX File Descriptors:
* fd 12: dev=0:10,mode=020620,ino=5,uid=500,gid=5,rdev=136:2,size=0,atime=1273085037,mtime=1273085851,ctime=1272982635
- * </programlisting>
+ * ]|
*
* Returns: A string that should be freed with g_free().
*
statbuf.st_mode);
g_string_append_printf (fs, "%s" "ino=%" G_GUINT64_FORMAT, fs->len > 0 ? "," : "",
(guint64) statbuf.st_ino);
- g_string_append_printf (fs, "%s" "uid=%d", fs->len > 0 ? "," : "",
- statbuf.st_uid);
- g_string_append_printf (fs, "%s" "gid=%d", fs->len > 0 ? "," : "",
- statbuf.st_gid);
+ g_string_append_printf (fs, "%s" "uid=%u", fs->len > 0 ? "," : "",
+ (guint) statbuf.st_uid);
+ g_string_append_printf (fs, "%s" "gid=%u", fs->len > 0 ? "," : "",
+ (guint) statbuf.st_gid);
g_string_append_printf (fs, "%s" "rdev=%d:%d", fs->len > 0 ? "," : "",
major (statbuf.st_rdev), minor (statbuf.st_rdev));
g_string_append_printf (fs, "%s" "size=%" G_GUINT64_FORMAT, fs->len > 0 ? "," : "",
return g_string_free (str, FALSE);
}
+/**
+ * g_dbus_message_get_locked:
+ * @message: A #GDBusMessage.
+ *
+ * Checks whether @message is locked. To monitor changes to this
+ * value, conncet to the #GObject::notify signal to listen for changes
+ * on the #GDBusMessage:locked property.
+ *
+ * Returns: %TRUE if @message is locked, %FALSE otherwise.
+ *
+ * Since: 2.26
+ */
+gboolean
+g_dbus_message_get_locked (GDBusMessage *message)
+{
+ g_return_val_if_fail (G_IS_DBUS_MESSAGE (message), FALSE);
+ return message->locked;
+}
+
+/**
+ * g_dbus_message_lock:
+ * @message: A #GDBusMessage.
+ *
+ * If @message is locked, does nothing. Otherwise locks the message.
+ *
+ * Since: 2.26
+ */
+void
+g_dbus_message_lock (GDBusMessage *message)
+{
+ g_return_if_fail (G_IS_DBUS_MESSAGE (message));
+
+ if (message->locked)
+ goto out;
+
+ message->locked = TRUE;
+ g_object_notify (G_OBJECT (message), "locked");
+
+ out:
+ ;
+}
+
+/**
+ * g_dbus_message_copy:
+ * @message: A #GDBusMessage.
+ * @error: Return location for error or %NULL.
+ *
+ * Copies @message. The copy is a deep copy and the returned
+ * #GDBusMessage is completely identical except that it is guaranteed
+ * to not be locked.
+ *
+ * This operation can fail if e.g. @message contains file descriptors
+ * and the per-process or system-wide open files limit is reached.
+ *
+ * Returns: (transfer full): A new #GDBusMessage or %NULL if @error is set.
+ * Free with g_object_unref().
+ *
+ * Since: 2.26
+ */
+GDBusMessage *
+g_dbus_message_copy (GDBusMessage *message,
+ GError **error)
+{
+ GDBusMessage *ret;
+ GHashTableIter iter;
+ gpointer header_key;
+ GVariant *header_value;
+
+ g_return_val_if_fail (G_IS_DBUS_MESSAGE (message), NULL);
+ g_return_val_if_fail (error == NULL || *error == NULL, NULL);
+
+ ret = g_dbus_message_new ();
+ ret->type = message->type;
+ ret->flags = message->flags;
+ ret->byte_order = message->byte_order;
+ ret->major_protocol_version = message->major_protocol_version;
+ ret->serial = message->serial;
+
+#ifdef G_OS_UNIX
+ if (message->fd_list != NULL)
+ {
+ gint n;
+ gint num_fds;
+ const gint *fds;
+
+ ret->fd_list = g_unix_fd_list_new ();
+ fds = g_unix_fd_list_peek_fds (message->fd_list, &num_fds);
+ for (n = 0; n < num_fds; n++)
+ {
+ if (g_unix_fd_list_append (ret->fd_list,
+ fds[n],
+ error) == -1)
+ {
+ g_object_unref (ret);
+ ret = NULL;
+ goto out;
+ }
+ }
+ }
+#endif
+
+ /* see https://bugzilla.gnome.org/show_bug.cgi?id=624546#c8 for why it's fine
+ * to just ref (as opposed to deep-copying) the GVariant instances
+ */
+ ret->body = message->body != NULL ? g_variant_ref (message->body) : NULL;
+ g_hash_table_iter_init (&iter, message->headers);
+ while (g_hash_table_iter_next (&iter, &header_key, (gpointer) &header_value))
+ g_hash_table_insert (ret->headers, header_key, g_variant_ref (header_value));
-#define __G_DBUS_MESSAGE_C__
-#include "gioaliasdef.c"
+#ifdef G_OS_UNIX
+ out:
+#endif
+ return ret;
+}
projects / platform / upstream / glib.git / blobdiff