diff --git a/attrib/att.c b/attrib/att.c
index 790ec3a..20a8efa 100644
--- a/attrib/att.c
+++ b/attrib/att.c
@@ -1028,3 +1028,38 @@ uint16_t dec_prep_write_resp(const uint8_t *pdu, int len, uint16_t *handle,
 
 	return len;
 }
+
+uint16_t enc_exec_write_req(uint8_t flags, uint8_t *pdu, int len)
+{
+	const uint16_t min_len = sizeof(pdu[0]) + sizeof(flags);
+
+	if (pdu == NULL)
+		return 0;
+
+	if (len < min_len)
+		return 0;
+
+	if (flags > 1)
+		return 0;
+
+	pdu[0] = ATT_OP_EXEC_WRITE_REQ;
+	pdu[1] = flags;
+
+	return min_len;
+}
+
+uint16_t dec_exec_write_resp(const uint8_t *pdu, int len)
+{
+	const uint16_t min_len = sizeof(pdu[0]);
+
+	if (pdu == NULL)
+		return 0;
+
+	if (len < min_len)
+		return 0;
+
+	if (pdu[0] != ATT_OP_EXEC_WRITE_RESP)
+		return 0;
+
+	return len;
+}
diff --git a/attrib/att.h b/attrib/att.h
index ec03be9..64d22ca 100644
--- a/attrib/att.h
+++ b/attrib/att.h
@@ -261,3 +261,5 @@ uint16_t enc_prep_write_req(uint16_t handle, uint16_t offset,
 			const uint8_t *value, int vlen, uint8_t *pdu, int len);
 uint16_t dec_prep_write_resp(const uint8_t *pdu, int len, uint16_t *handle,
 				uint16_t *offset, uint8_t *value, int *vlen);
+uint16_t enc_exec_write_req(uint8_t flags, uint8_t *pdu, int len);
+uint16_t dec_exec_write_resp(const uint8_t *pdu, int len);