From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
If MTU has changed, by bt_gatt_client for example, the code should be
able to figure it out without waiting g_attrib_set_mtu to be called.
---
attrib/gattrib.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/attrib/gattrib.c b/attrib/gattrib.c
index 514fc8f..2011359 100644
--- a/attrib/gattrib.c
+++ b/attrib/gattrib.c
@@ -429,9 +429,24 @@ guint g_attrib_register(GAttrib *attrib, guint8 opcode, guint16 handle,
uint8_t *g_attrib_get_buffer(GAttrib *attrib, size_t *len)
{
+ uint16_t mtu;
+
if (!attrib || !len)
return NULL;
+ mtu = bt_att_get_mtu(attrib->att);
+
+ /*
+ * Clients of this expect a buffer to use.
+ *
+ * Pdu encoding in shared/att verifies if whole buffer fits the mtu,
+ * thus we should set the buflen also when mtu is reduced. But we
+ * need to reallocate the buffer only if mtu is larger.
+ */
+ if (mtu > attrib->buflen)
+ attrib->buf = g_realloc(attrib->buf, mtu);
+
+ attrib->buflen = mtu;
*len = attrib->buflen;
return attrib->buf;
}
--
2.1.0
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