static void ipsp_recv(struct bt_l2cap_chan *chan, struct net_buf *buf)
{
struct bt_context *ctxt = CHAN_CTXT(chan);
struct net_buf *nbuf;
NET_DBG("Incoming data channel %p len %u", chan,
net_buf_frags_len(buf));
/* Get buffer for bearer / protocol related data */
nbuf = net_nbuf_get_reserve_rx(0);
/* Set destination address */
net_nbuf_ll_dst(nbuf)->addr = ctxt->src.val;
net_nbuf_ll_dst(nbuf)->len = sizeof(ctxt->src);
/* Set source address */
net_nbuf_ll_src(nbuf)->addr = ctxt->dst.val;
net_nbuf_ll_src(nbuf)->len = sizeof(ctxt->dst);
/* Add data buffer as fragment of RX buffer, take a reference while
* doing so since L2CAP will unref the buffer after return.
*/
net_buf_frag_add(nbuf, net_buf_ref(buf));
if (net_recv_data(ctxt->iface, nbuf) < 0) {
NET_DBG("Packet dropped by NET stack");
net_nbuf_unref(nbuf);
}
}
static void ipsp_connected(struct bt_l2cap_chan *chan)
{
struct bt_context *ctxt = CHAN_CTXT(chan);
struct bt_conn_info info;
#if defined(CONFIG_NET_DEBUG_L2_BLUETOOTH)
char src[BT_ADDR_LE_STR_LEN];
char dst[BT_ADDR_LE_STR_LEN];
#endif
bt_conn_get_info(chan->conn, &info);
#if defined(CONFIG_NET_DEBUG_L2_BLUETOOTH)
bt_addr_le_to_str(info.le.src, src, sizeof(src));
bt_addr_le_to_str(info.le.dst, dst, sizeof(dst));
NET_DBG("Channel %p Source %s connected to Destination %s", chan,
src, dst);
#endif
/* Swap bytes since net APIs expect big endian address */
sys_memcpy_swap(ctxt->src.val, info.le.src->a.val, sizeof(ctxt->src));
sys_memcpy_swap(ctxt->dst.val, info.le.dst->a.val, sizeof(ctxt->dst));
net_if_set_link_addr(ctxt->iface, ctxt->src.val, sizeof(ctxt->src.val));
/* Set iface up */
net_if_up(ctxt->iface);
}
static void ipsp_recv(struct bt_l2cap_chan *chan, struct net_buf *buf)
{
struct bt_context *ctxt = CHAN_CTXT(chan);
struct net_pkt *pkt;
NET_DBG("Incoming data channel %p len %zu", chan,
net_buf_frags_len(buf));
/* Get packet for bearer / protocol related data */
pkt = net_pkt_get_reserve_rx(0, K_FOREVER);
/* Set destination address */
net_pkt_ll_dst(pkt)->addr = ctxt->src.val;
net_pkt_ll_dst(pkt)->len = sizeof(ctxt->src);
net_pkt_ll_dst(pkt)->type = NET_LINK_BLUETOOTH;
/* Set source address */
net_pkt_ll_src(pkt)->addr = ctxt->dst.val;
net_pkt_ll_src(pkt)->len = sizeof(ctxt->dst);
net_pkt_ll_src(pkt)->type = NET_LINK_BLUETOOTH;
/* Add data buffer as fragment of RX buffer, take a reference while
* doing so since L2CAP will unref the buffer after return.
*/
net_pkt_frag_add(pkt, net_buf_ref(buf));
if (net_recv_data(ctxt->iface, pkt) < 0) {
NET_DBG("Packet dropped by NET stack");
net_pkt_unref(pkt);
}
}
static void ipsp_disconnected(struct bt_l2cap_chan *chan)
{
struct bt_context *ctxt = CHAN_CTXT(chan);
NET_DBG("Channel %p disconnected", chan);
/* Set iface down */
net_if_down(ctxt->iface);
}
static void ipsp_disconnected(struct bt_l2cap_chan *chan)
{
struct bt_context *ctxt = CHAN_CTXT(chan);
NET_DBG("Channel %p disconnected", chan);
/* Set iface down */
net_if_down(ctxt->iface);
#if defined(CONFIG_NET_L2_BLUETOOTH_MGMT)
if (chan->conn != default_conn) {
return;
}
bt_conn_unref(default_conn);
default_conn = NULL;
#endif
}
static void ipsp_connected(struct bt_l2cap_chan *chan)
{
struct bt_context *ctxt = CHAN_CTXT(chan);
struct bt_conn_info info;
struct net_linkaddr ll;
struct in6_addr in6;
#if defined(CONFIG_NET_DEBUG_L2_BLUETOOTH)
char src[BT_ADDR_LE_STR_LEN];
char dst[BT_ADDR_LE_STR_LEN];
#endif
bt_conn_get_info(chan->conn, &info);
#if defined(CONFIG_NET_DEBUG_L2_BLUETOOTH)
bt_addr_le_to_str(info.le.src, src, sizeof(src));
bt_addr_le_to_str(info.le.dst, dst, sizeof(dst));
NET_DBG("Channel %p Source %s connected to Destination %s", chan,
src, dst);
#endif
/* Swap bytes since net APIs expect big endian address */
sys_memcpy_swap(ctxt->src.val, info.le.src->a.val, sizeof(ctxt->src));
sys_memcpy_swap(ctxt->dst.val, info.le.dst->a.val, sizeof(ctxt->dst));
net_if_set_link_addr(ctxt->iface, ctxt->src.val, sizeof(ctxt->src.val),
NET_LINK_BLUETOOTH);
ll.addr = ctxt->dst.val;
ll.len = sizeof(ctxt->dst.val);
/* Add remote link-local address to the nbr cache to avoid sending ns:
* https://tools.ietf.org/html/rfc7668#section-3.2.3
* A Bluetooth LE 6LN MUST NOT register its link-local address.
*/
net_ipv6_addr_create_iid(&in6, &ll);
net_ipv6_nbr_add(ctxt->iface, &in6, &ll, false,
NET_IPV6_NBR_STATE_REACHABLE);
/* Set iface up */
net_if_up(ctxt->iface);
}
