net/bluetooth/iso.c

463 static int iso_send_frame(struct sock *sk, struct sk_buff *skb)
470 	BT_DBG("sk %p len %d", sk, skb->len);
472 	if (skb->len > qos->ucast.out.sdu)
475 	len = skb->len;
478 	hdr = skb_push(skb, HCI_ISO_DATA_HDR_SIZE);
484 		hci_send_iso(conn->hcon, skb);
491 static void iso_recv_frame(struct iso_conn *conn, struct sk_buff *skb)
502 	BT_DBG("sk %p len %d", sk, skb->len);
507 	if (!sock_queue_rcv_skb(sk, skb))
511 	kfree_skb(skb);
1241 	struct sk_buff *skb, **frag;
1265 	skb = bt_skb_sendmsg(sk, msg, len, mtu, HCI_ISO_DATA_HDR_SIZE, 0);
1266 	if (IS_ERR(skb))
1267 		return PTR_ERR(skb);
1269 	len -= skb->len;
1271 	BT_DBG("skb %p len %d", sk, skb->len);
1274 	frag = &skb_shinfo(skb)->frag_list;
1280 			kfree_skb(skb);
1288 		skb->len += tmp->len;
1289 		skb->data_len += tmp->len;
1299 		err = iso_send_frame(sk, skb);
1306 		kfree_skb(skb);
2093 void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
2104 	BT_DBG("conn %p len %d pb 0x%x ts 0x%x", conn, skb->len, pb, ts);
2110 			BT_ERR("Unexpected start frame (len %d)", skb->len);
2120 			hdr = skb_pull_data(skb, HCI_ISO_TS_DATA_HDR_SIZE);
2122 				BT_ERR("Frame is too short (len %d)", skb->len);
2130 			hdr = skb_pull_data(skb, HCI_ISO_DATA_HDR_SIZE);
2132 				BT_ERR("Frame is too short (len %d)", skb->len);
2143 		       skb->len, flags);
2145 		if (len == skb->len) {
2147 			hci_skb_pkt_status(skb) = flags & 0x03;
2148 			iso_recv_frame(conn, skb);
2154 			       skb->len, len);
2158 		if (skb->len > len) {
2160 			       skb->len, len);
2164 		/* Allocate skb for the complete frame (with header) */
2170 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
2171 					  skb->len);
2172 		conn->rx_len = len - skb->len;
2176 		BT_DBG("Cont: frag len %d (expecting %d)", skb->len,
2181 			       skb->len);
2185 		if (skb->len > conn->rx_len) {
2187 			       skb->len, conn->rx_len);
2194 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
2195 					  skb->len);
2196 		conn->rx_len -= skb->len;
2200 		skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
2201 					  skb->len);
2202 		conn->rx_len -= skb->len;
2208 			 * takes ownership of the skb so set the global
2218 	kfree_skb(skb);