Signed-off-by: Mat Martineau <mathewm@xxxxxxxxxxxxxx>
---
include/net/bluetooth/l2cap.h | 1 +
net/bluetooth/l2cap_core.c | 120 +++++++++++++++++++++++++++++++++++++++++-
2 files changed, 119 insertions(+), 2 deletions(-)
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index fcc971a..7c50606 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -461,6 +461,7 @@ struct l2cap_chan {
__u8 conf_req[64];
__u8 conf_len;
+ __u8 conf_ident;
__u8 num_conf_req;
__u8 num_conf_rsp;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 8d72f2e..79f9d8e 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3717,6 +3717,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
goto unlock;
}
+ chan->conf_ident = cmd->ident;
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP, len, rsp);
chan->num_conf_rsp++;
@@ -4161,11 +4162,126 @@ static void l2cap_send_move_chan_cfm_rsp(struct l2cap_conn *conn, u8 ident,
l2cap_send_cmd(conn, ident, L2CAP_MOVE_CHAN_CFM_RSP, sizeof(rsp), &rsp);
}
+/* Call with chan locked */
static void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
u8 status)
{
- /* Placeholder */
- return;
+ BT_DBG("chan %p, hchan %p, status %d", chan, hchan, status);
+
+ if (chan->state != BT_CONNECTED && !chan->chan_id)
+ return;
+
+ if (chan && !status && chan->state != BT_CONNECTED) {
+ struct l2cap_conf_rsp rsp;
+ u8 code;
+
+ /* Create channel complete */
+ chan->hs_hcon = hchan->conn;
+ chan->hs_hcon->l2cap_data = chan->conn;
+
+ code = l2cap_build_conf_rsp(chan, &rsp,
+ L2CAP_CONF_SUCCESS, 0);
+ l2cap_send_cmd(chan->conn, chan->conf_ident,
+ L2CAP_CONF_RSP, code, &rsp);
+ set_bit(CONF_OUTPUT_DONE, &chan->conf_state);
+
+ if (test_bit(CONF_INPUT_DONE, &chan->conf_state)) {
+ int err = 0;
+
+ set_default_fcs(chan);
+
+ if (chan->mode == L2CAP_MODE_ERTM ||
+ chan->mode == L2CAP_MODE_STREAMING)
+ err = l2cap_ertm_init(chan);
+
+ if (err < 0)
+ l2cap_send_disconn_req(chan->conn, chan, -err);
+ else
+ l2cap_chan_ready(chan);
+ }
+ } else if (chan && !status) {
+ /* Channel move */
+ chan->hs_hcon = hchan->conn;
+ chan->hs_hcon->l2cap_data = chan->conn;
+
+ BT_DBG("move_state %d", chan->move_state);
+
+ if (chan->state != BT_CONNECTED) {
+ return;
+ }
+
+ switch (chan->move_state) {
+ case L2CAP_MOVE_WAIT_LOGICAL_COMP:
+ /* Move confirm will be sent after a success
+ * response is received
+ */
+ chan->move_state = L2CAP_MOVE_WAIT_RSP_SUCCESS;
+ break;
+ case L2CAP_MOVE_WAIT_LOGICAL_CFM:
+ if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
+ chan->move_state = L2CAP_MOVE_WAIT_LOCAL_BUSY;
+ } else if (chan->move_role ==
+ L2CAP_MOVE_ROLE_INITIATOR) {
+ chan->move_state = L2CAP_MOVE_WAIT_CONFIRM_RSP;
+ l2cap_send_move_chan_cfm(chan->conn, chan,
+ chan->scid,
+ L2CAP_MR_SUCCESS);
+ __set_chan_timer(chan, L2CAP_MOVE_TIMEOUT);
+ } else if (chan->move_role ==
+ L2CAP_MOVE_ROLE_RESPONDER) {
+ chan->move_state = L2CAP_MOVE_WAIT_CONFIRM;
+ l2cap_send_move_chan_rsp(chan->conn,
+ chan->move_cmd_ident,
+ chan->dcid,
+ L2CAP_MR_SUCCESS);
+ }
+ break;
+ default:
+ /* Move was not in expected state, free the channel */
+ chan->hs_hchan = NULL;
+ chan->hs_hcon = NULL;
+
+ /* Placeholder - free the logical link */
+
+ chan->move_state = L2CAP_MOVE_STABLE;
+ }
+ } else {
+ /* Logical link setup failed. */
+
+ if (chan->state != BT_CONNECTED)
+ l2cap_send_disconn_req(chan->conn, chan, ECONNRESET);
+ else if (chan->move_role == L2CAP_MOVE_ROLE_RESPONDER) {
+ l2cap_move_revert(chan);
+ chan->move_role = L2CAP_MOVE_ROLE_NONE;
+ chan->move_state = L2CAP_MOVE_STABLE;
+ l2cap_send_move_chan_rsp(chan->conn,
+ chan->move_cmd_ident,
+ chan->dcid,
+ L2CAP_MR_NOT_SUPP);
+ } else if (chan->move_role == L2CAP_MOVE_ROLE_INITIATOR) {
+ if (chan->move_state == L2CAP_MOVE_WAIT_LOGICAL_COMP ||
+ chan->move_state == L2CAP_MOVE_WAIT_LOGICAL_CFM) {
+ /* Remote has only sent pending or
+ * success responses, clean up
+ */
+ l2cap_move_revert(chan);
+ chan->move_role = L2CAP_MOVE_ROLE_NONE;
+ chan->move_state = L2CAP_MOVE_STABLE;
+ }
+
+ /* Other amp move states imply that the move
+ * has already aborted
+ */
+ l2cap_send_move_chan_cfm(chan->conn, chan, chan->scid,
+ L2CAP_MC_UNCONFIRMED);
+ __set_chan_timer(chan, L2CAP_MOVE_TIMEOUT);
+ }
+
+ chan->hs_hchan = NULL;
+ chan->hs_hcon = NULL;
+
+ /* Placeholder - free logical link */
+ }
}
static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
--
1.7.11.2
--
Mat Martineau
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum
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