void btu_register_timer (TIMER_LIST_ENT *p_tle, UINT16 type, UINT32 timeout, tBTU_TIMER_CALLBACK timer_cb)
{
UINT8 i = 0;
INT8 first = -1;
for (; i < BTU_MAX_REG_TIMER; i++)
{
if (btu_cb.timer_reg[i].p_tle == NULL && first < 0)
first = i;
if (btu_cb.timer_reg[i].p_tle == p_tle)
{
btu_cb.timer_reg[i].timer_cb = timer_cb;
btu_start_timer(p_tle, type, timeout);
first = -1;
break;
}
}
if (first >= 0 && first < BTU_MAX_REG_TIMER)
{
btu_cb.timer_reg[first].timer_cb = timer_cb;
btu_cb.timer_reg[first].p_tle = p_tle;
btu_start_timer(p_tle, type, timeout);
}
}
/*******************************************************************************
**
** Function l2c_process_held_packets
**
** Description This function processes any L2CAP packets that arrived before
** the HCI connection complete arrived. It is a work around for
** badly behaved controllers.
**
** Returns void
**
*******************************************************************************/
void l2c_process_held_packets (BOOLEAN timed_out)
{
BT_HDR *p_buf, *p_buf1;
BUFFER_Q *p_rcv_hold_q = &l2cb.rcv_hold_q;
if (!p_rcv_hold_q->count)
return;
if (!timed_out)
{
btu_stop_timer(&l2cb.rcv_hold_tle);
L2CAP_TRACE_WARNING0("L2CAP HOLD CONTINUE");
}
else
{
L2CAP_TRACE_WARNING0("L2CAP HOLD TIMEOUT");
}
/* Update the timeouts in the hold queue */
for (p_buf = (BT_HDR *)GKI_getfirst (p_rcv_hold_q); p_buf; p_buf = p_buf1)
{
p_buf1 = (BT_HDR *)GKI_getnext (p_buf);
if (!timed_out || (!p_buf->layer_specific) || (--p_buf->layer_specific == 0))
{
GKI_remove_from_queue (p_rcv_hold_q, p_buf);
p_buf->layer_specific = 0xFFFF;
l2c_rcv_acl_data (p_buf);
}
}
/* If anyone still in the queue, restart the timeout */
if (p_rcv_hold_q->count)
btu_start_timer (&l2cb.rcv_hold_tle, BTU_TTYPE_L2CAP_HOLD, BT_1SEC_TIMEOUT);
}
/*******************************************************************************
**
** Function l2c_process_held_packets
**
** Description This function processes any L2CAP packets that arrived before
** the HCI connection complete arrived. It is a work around for
** badly behaved controllers.
**
** Returns void
**
*******************************************************************************/
void l2c_process_held_packets(BOOLEAN timed_out)
{
if (list_is_empty(l2cb.rcv_pending_q)) {
return;
}
if (!timed_out) {
btu_stop_timer(&l2cb.rcv_hold_tle);
L2CAP_TRACE_WARNING("L2CAP HOLD CONTINUE");
} else {
L2CAP_TRACE_WARNING("L2CAP HOLD TIMEOUT");
}
for (const list_node_t *node = list_begin(l2cb.rcv_pending_q);
node != list_end(l2cb.rcv_pending_q);) {
BT_HDR *p_buf = list_node(node);
node = list_next(node);
if (!timed_out || (!p_buf->layer_specific) || (--p_buf->layer_specific == 0)) {
list_remove(l2cb.rcv_pending_q, p_buf);
p_buf->layer_specific = 0xFFFF;
l2c_rcv_acl_data(p_buf);
}
}
/* If anyone still in the queue, restart the timeout */
if (!list_is_empty(l2cb.rcv_pending_q)) {
btu_start_timer (&l2cb.rcv_hold_tle, BTU_TTYPE_L2CAP_HOLD, BT_1SEC_TIMEOUT);
}
}
/*******************************************************************************
**
** Function avdt_ccb_ret_cmd
**
** Description This function is called to retransmit the currently
** pending command. The retransmission count is incremented.
** If the count reaches the maximum number of retransmissions,
** the event is treated as a response timeout.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
{
UINT8 err_code = AVDT_ERR_TIMEOUT;
BT_HDR *p_msg;
p_ccb->ret_count++;
if (p_ccb->ret_count == AVDT_RET_MAX)
{
/* command failed */
p_ccb->ret_count = 0;
avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
/* go to next queued command */
avdt_ccb_snd_cmd(p_ccb, p_data);
}
else
{
/* if command pending and we're not congested and not sending a fragment */
if ((!p_ccb->cong) && (p_ccb->p_curr_msg == NULL) && (p_ccb->p_curr_cmd != NULL))
{
/* make copy of message in p_curr_cmd and send it */
if ((p_msg = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID)) != NULL)
{
memcpy(p_msg, p_ccb->p_curr_cmd,
(sizeof(BT_HDR) + p_ccb->p_curr_cmd->offset + p_ccb->p_curr_cmd->len));
avdt_msg_send(p_ccb, p_msg);
}
}
/* restart timer */
btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_AVDT_CCB_RET, avdt_cb.rcb.ret_tout);
}
}
/*******************************************************************************
**
** Function mca_ccb_snd_req
**
** Description This function builds a request and sends it to the peer.
**
** Returns void.
**
*******************************************************************************/
void mca_ccb_snd_req(tMCA_CCB *p_ccb, tMCA_CCB_EVT *p_data)
{
tMCA_CCB_MSG *p_msg = (tMCA_CCB_MSG *)p_data;
BT_HDR *p_pkt;
UINT8 *p, *p_start;
BOOLEAN is_abort = FALSE;
tMCA_DCB *p_dcb;
MCA_TRACE_DEBUG ("mca_ccb_snd_req cong=%d req=%d", p_ccb->cong, p_msg->op_code);
/* check for abort request */
if ((p_ccb->status == MCA_CCB_STAT_PENDING) && (p_msg->op_code == MCA_OP_MDL_ABORT_REQ))
{
p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx);
/* the Abort API does not have the associated mdl_id.
* Get the mdl_id in dcb to compose the request */
if (p_dcb)
{
p_msg->mdl_id = p_dcb->mdl_id;
mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL);
}
mca_free_buf ((void **)&p_ccb->p_tx_req);
p_ccb->status = MCA_CCB_STAT_NORM;
is_abort = TRUE;
}
/* no pending outgoing messages or it's an abort request for a pending data channel */
if ((!p_ccb->p_tx_req) || is_abort)
{
p_ccb->p_tx_req = p_msg;
if (!p_ccb->cong)
{
p_pkt = (BT_HDR *)GKI_getbuf (MCA_CTRL_MTU);
if (p_pkt)
{
p_pkt->offset = L2CAP_MIN_OFFSET;
p = p_start = (UINT8*)(p_pkt + 1) + L2CAP_MIN_OFFSET;
*p++ = p_msg->op_code;
UINT16_TO_BE_STREAM (p, p_msg->mdl_id);
if (p_msg->op_code == MCA_OP_MDL_CREATE_REQ)
{
*p++ = p_msg->mdep_id;
*p++ = p_msg->param;
}
p_msg->hdr.layer_specific = TRUE; /* mark this message as sent */
p_pkt->len = p - p_start;
L2CA_DataWrite (p_ccb->lcid, p_pkt);
p_ccb->timer_entry.param = (TIMER_PARAM_TYPE) p_ccb;
btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_MCA_CCB_RSP, p_ccb->p_rcb->reg.rsp_tout);
}
}
/* else the L2CAP channel is congested. keep the message to be sent later */
}
else
{
MCA_TRACE_WARNING ("dropping api req");
GKI_freebuf (p_data);
}
}
/*******************************************************************************
**
** Function rfc_port_timer_start
**
** Description Start RFC Timer
**
*******************************************************************************/
void rfc_port_timer_start (tPORT *p_port, UINT16 timeout)
{
TIMER_LIST_ENT *p_tle = &p_port->rfc.tle;
RFCOMM_TRACE_EVENT ("rfc_port_timer_start - timeout:%d", timeout);
p_tle->param = (UINT32)p_port;
btu_start_timer (p_tle, BTU_TTYPE_RFCOMM_PORT, timeout);
}
/*******************************************************************************
**
** Function rfc_timer_start
**
** Description Start RFC Timer
**
*******************************************************************************/
void rfc_timer_start (tRFC_MCB *p_mcb, UINT16 timeout)
{
TIMER_LIST_ENT *p_tle = &p_mcb->tle;
RFCOMM_TRACE_EVENT ("rfc_timer_start - timeout:%d", timeout);
p_tle->param = (UINT32)p_mcb;
btu_start_timer (p_tle, BTU_TTYPE_RFCOMM_MFC, timeout);
}
/*******************************************************************************
**
** Function BNEP_Init
**
** Description This function initializes the BNEP unit. It should be called
** before accessing any other APIs to initialize the control block
**
** Returns void
**
*******************************************************************************/
void BNEP_Init (void)
{
memset (&bnep_cb, 0, sizeof (tBNEP_CB));
#if defined(BNEP_INITIAL_TRACE_LEVEL)
bnep_cb.trace_level = BNEP_INITIAL_TRACE_LEVEL;
#else
bnep_cb.trace_level = BT_TRACE_LEVEL_NONE; /* No traces */
#endif
/* Start a timer to read our BD address */
btu_start_timer (&bnep_cb.bnep_tle, BTU_TTYPE_BNEP, 2);
}
/*******************************************************************************
**
** Function l2cble_init_direct_conn
**
** Description This function is to initate a direct connection
**
** Returns TRUE connection initiated, FALSE otherwise.
**
*******************************************************************************/
BOOLEAN l2cble_init_direct_conn (tL2C_LCB *p_lcb)
{
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (p_lcb->remote_bd_addr);
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT16 scan_int, scan_win;
BD_ADDR init_addr;
UINT8 init_addr_type = BLE_ADDR_PUBLIC,
own_addr_type = BLE_ADDR_PUBLIC;
/* There can be only one BLE connection request outstanding at a time */
if (p_dev_rec == NULL)
{
BTM_TRACE_WARNING0 ("unknown device, can not initate connection");
return(FALSE);
}
scan_int = (p_cb->scan_int == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
scan_win = (p_cb->scan_win == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
init_addr_type = p_lcb->ble_addr_type;
memcpy(init_addr, p_lcb->remote_bd_addr, BD_ADDR_LEN);
if (!btsnd_hcic_ble_create_ll_conn (scan_int,/* UINT16 scan_int */
scan_win, /* UINT16 scan_win */
FALSE, /* UINT8 white_list */
p_lcb->ble_addr_type, /* UINT8 addr_type_peer */
p_lcb->remote_bd_addr, /* BD_ADDR bda_peer */
BLE_ADDR_PUBLIC, /* UINT8 addr_type_own */
(UINT16) ((p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ? p_dev_rec->conn_params.min_conn_int : BTM_BLE_CONN_INT_MIN), /* UINT16 conn_int_min */
(UINT16) ((p_dev_rec->conn_params.max_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ? p_dev_rec->conn_params.max_conn_int : BTM_BLE_CONN_INT_MIN), /* UINT16 conn_int_max */
(UINT16) ((p_dev_rec->conn_params.slave_latency != BTM_BLE_CONN_PARAM_UNDEF) ? p_dev_rec->conn_params.slave_latency : 0), /* UINT16 conn_latency */
(UINT16) ((p_dev_rec->conn_params.supervision_tout != BTM_BLE_CONN_PARAM_UNDEF) ? p_dev_rec->conn_params.supervision_tout : BTM_BLE_CONN_SUP_TOUT_DEF), /* UINT16 conn_timeout */
0, /* UINT16 min_len */
0)) /* UINT16 max_len */
{
l2cu_release_lcb (p_lcb);
L2CAP_TRACE_ERROR0("initate direct connection fail, no resources");
return (FALSE);
}
else
{
p_lcb->link_state = LST_CONNECTING;
memcpy (l2cb.ble_connecting_bda, p_lcb->remote_bd_addr, BD_ADDR_LEN);
//Assigning below variable which is checked at LE conn cancel
l2cb.is_ble_connecting=TRUE;
btu_start_timer (&p_lcb->timer_entry, BTU_TTYPE_L2CAP_LINK, L2CAP_BLE_LINK_CONNECT_TOUT);
btm_ble_set_conn_st (BLE_DIR_CONN);
return (TRUE);
}
}
/*******************************************************************************
**
** Function BTM_ReadLocalDeviceNameFromController
**
** Description Get local device name from controller. Do not use cached
** name (used to get chip-id prior to btm reset complete).
**
** Returns BTM_CMD_STARTED if successful, otherwise an error
**
*******************************************************************************/
tBTM_STATUS BTM_ReadLocalDeviceNameFromController (tBTM_CMPL_CB *p_rln_cmpl_cback)
{
/* Check if rln already in progress */
if (btm_cb.devcb.p_rln_cmpl_cb)
return(BTM_NO_RESOURCES);
/* Save callback */
btm_cb.devcb.p_rln_cmpl_cb = p_rln_cmpl_cback;
btsnd_hcic_read_name();
btu_start_timer (&btm_cb.devcb.rln_timer, BTU_TTYPE_BTM_DEV_CTL, BTM_DEV_REPLY_TIMEOUT);
return BTM_CMD_STARTED;
}
/*******************************************************************************
**
** Function smp_br_data_received
**
** Description This function is called when data is received from L2CAP on
** SMP BR channel.
**
** Returns void
**
*******************************************************************************/
static void smp_br_data_received(UINT16 channel, BD_ADDR bd_addr, BT_HDR *p_buf)
{
tSMP_CB *p_cb = &smp_cb;
UINT8 *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
UINT8 cmd ;
SMP_TRACE_EVENT ("SMDBG l2c %s", __func__);
STREAM_TO_UINT8(cmd, p);
/* sanity check */
if ((SMP_OPCODE_MAX < cmd) || (SMP_OPCODE_MIN > cmd))
{
SMP_TRACE_WARNING( "Ignore received command with RESERVED code 0x%02x", cmd);
GKI_freebuf(p_buf);
return;
}
/* reject the pairing request if there is an on-going SMP pairing */
if (SMP_OPCODE_PAIRING_REQ == cmd)
{
if ((p_cb->state == SMP_STATE_IDLE) && (p_cb->br_state == SMP_BR_STATE_IDLE))
{
p_cb->role = HCI_ROLE_SLAVE;
p_cb->smp_over_br = TRUE;
memcpy(&p_cb->pairing_bda[0], bd_addr, BD_ADDR_LEN);
}
else if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN))
{
GKI_freebuf (p_buf);
smp_reject_unexpected_pairing_command(bd_addr);
return;
}
/* else, out of state pairing request received, passed into State Machine */
}
if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN) == 0)
{
btu_stop_timer (&p_cb->rsp_timer_ent);
btu_start_timer (&p_cb->rsp_timer_ent, BTU_TTYPE_SMP_PAIRING_CMD,
SMP_WAIT_FOR_RSP_TOUT);
p_cb->rcvd_cmd_code = cmd;
p_cb->rcvd_cmd_len = (UINT8) p_buf->len;
smp_br_state_machine_event(p_cb, cmd, p);
}
GKI_freebuf (p_buf);
}
/*******************************************************************************
**
** Function sdp_config_cfm
**
** Description This function processes the L2CAP configuration confirmation
** event.
**
** Returns void
**
*******************************************************************************/
static void sdp_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
{
tCONN_CB *p_ccb;
SDP_TRACE_EVENT2 ("SDP - Rcvd cfg cfm, CID: 0x%x Result: %d", l2cap_cid, p_cfg->result);
/* Find CCB based on CID */
if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) == NULL)
{
SDP_TRACE_WARNING1 ("SDP - Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
return;
}
/* For now, always accept configuration from the other side */
if (p_cfg->result == L2CAP_CFG_OK)
{
p_ccb->con_flags |= SDP_FLAGS_MY_CFG_DONE;
if (p_ccb->con_flags & SDP_FLAGS_HIS_CFG_DONE)
{
p_ccb->con_state = SDP_STATE_CONNECTED;
if (p_ccb->con_flags & SDP_FLAGS_IS_ORIG)
sdp_disc_connected (p_ccb);
else
/* Start inactivity timer */
btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_SDP, SDP_INACT_TIMEOUT);
}
}
else
{
/* If peer has rejected FCR and suggested basic then try basic */
if (p_cfg->fcr_present)
{
tL2CAP_CFG_INFO cfg = sdp_cb.l2cap_my_cfg;
cfg.fcr_present = FALSE;
L2CA_ConfigReq (l2cap_cid, &cfg);
/* Remain in configure state */
return;
}
#if SDP_CLIENT_ENABLED == TRUE
sdp_disconnect(p_ccb, SDP_CFG_FAILED);
#endif
}
}
/*******************************************************************************
**
** Function avdt_ccb_chk_close
**
** Description This function checks for active streams on this CCB.
** If there are none, it starts an idle timer.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_ccb_chk_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
{
int i;
tAVDT_SCB *p_scb = &avdt_cb.scb[0];
UNUSED(p_data);
/* see if there are any active scbs associated with this ccb */
for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
if ((p_scb->allocated) && (p_scb->p_ccb == p_ccb)) {
break;
}
}
/* if no active scbs start idle timer */
if (i == AVDT_NUM_SEPS) {
btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_AVDT_CCB_IDLE, avdt_cb.rcb.idle_tout);
}
}
/*******************************************************************************
**
** Function btm_ble_resume_bg_conn
**
** Description This function is to resume a background auto connection
** procedure.
**
** Parameters none.
**
** Returns none.
**
*******************************************************************************/
BOOLEAN btm_ble_resume_bg_conn(tBTM_BLE_SEL_CBACK *p_sele_callback, BOOLEAN def_param)
{
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
BOOLEAN ret = FALSE;
if (p_cb->bg_conn_state != BLE_BG_CONN_ACTIVE )
{
if (def_param)
{
p_cb->scan_int = BTM_BLE_CONN_PARAM_UNDEF;
p_cb->scan_win = BTM_BLE_CONN_PARAM_UNDEF;
/* start scan param idle timer */
btu_start_timer(&p_cb->scan_param_idle_timer,
BTU_TTYPE_BLE_SCAN_PARAM_IDLE,
BTM_BLE_SCAN_PARAM_TOUT);
}
if (p_cb->bg_conn_type == BTM_BLE_CONN_AUTO)
ret = btm_ble_start_auto_conn(TRUE);
if (p_cb->bg_conn_type == BTM_BLE_CONN_SELECTIVE)
{
/* terminate selective connection mode if all devices are connected */
if (btm_ble_count_unconn_dev_in_whitelist() == 0)
{
btsnd_hcic_ble_set_scan_enable (BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_DISABLE);
btm_cb.ble_ctr_cb.inq_var.proc_mode = BTM_BLE_INQUIRY_NONE;
btm_cb.btm_inq_vars.inq_active = FALSE;
}
else if (!btm_cb.btm_inq_vars.inq_active)
btm_ble_start_select_conn(TRUE, btm_cb.ble_ctr_cb.p_select_cback);
}
if (ret)
p_cb->bg_conn_state = BLE_BG_CONN_ACTIVE;
}
return ret;
}
/*******************************************************************************
**
** Function l2cble_init_direct_conn
**
** Description This function is to initate a direct connection
**
** Returns TRUE connection initiated, FALSE otherwise.
**
*******************************************************************************/
BOOLEAN l2cble_init_direct_conn (tL2C_LCB *p_lcb)
{
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (p_lcb->remote_bd_addr);
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT16 scan_int, scan_win;
BD_ADDR init_addr;
UINT8 init_addr_type = BLE_ADDR_PUBLIC,
own_addr_type = BLE_ADDR_PUBLIC;
/* There can be only one BLE connection request outstanding at a time */
if (p_dev_rec == NULL)
{
L2CAP_TRACE_WARNING ("unknown device, can not initate connection");
return(FALSE);
}
scan_int = (p_cb->scan_int == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
scan_win = (p_cb->scan_win == BTM_BLE_CONN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
init_addr_type = p_lcb->ble_addr_type;
memcpy(init_addr, p_lcb->remote_bd_addr, BD_ADDR_LEN);
#if BLE_PRIVACY_SPT == TRUE
/* if RPA offloading supported */
if (btm_ble_vendor_irk_list_load_dev(p_dev_rec))
btm_random_pseudo_to_public(init_addr, &init_addr_type);
/* otherwise, if remote is RPA enabled, use latest RPA */
else if (p_dev_rec->ble.active_addr_type == BTM_BLE_ADDR_RRA)
{
init_addr_type = BLE_ADDR_RANDOM;
memcpy(init_addr, p_dev_rec->ble.cur_rand_addr, BD_ADDR_LEN);
}
/* if privacy is on and current do not consider using reconnection address */
if (btm_cb.ble_ctr_cb.privacy ) /* && p_dev_rec->ble.use_reconn_addr */
own_addr_type = BLE_ADDR_RANDOM;
#endif
if (!btm_ble_topology_check(BTM_BLE_STATE_INIT))
{
l2cu_release_lcb (p_lcb);
L2CAP_TRACE_ERROR("initate direct connection fail, topology limitation");
return FALSE;
}
if (!btsnd_hcic_ble_create_ll_conn (scan_int,/* UINT16 scan_int */
scan_win, /* UINT16 scan_win */
FALSE, /* UINT8 white_list */
init_addr_type, /* UINT8 addr_type_peer */
init_addr, /* BD_ADDR bda_peer */
own_addr_type, /* UINT8 addr_type_own */
(UINT16) ((p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.min_conn_int : BTM_BLE_CONN_INT_MIN_DEF), /* UINT16 conn_int_min */
(UINT16) ((p_dev_rec->conn_params.max_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.max_conn_int : BTM_BLE_CONN_INT_MAX_DEF), /* UINT16 conn_int_max */
(UINT16) ((p_dev_rec->conn_params.slave_latency != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.slave_latency : BTM_BLE_CONN_SLAVE_LATENCY_DEF), /* UINT16 conn_latency */
(UINT16) ((p_dev_rec->conn_params.supervision_tout != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.supervision_tout : BTM_BLE_CONN_TIMEOUT_DEF), /* conn_timeout */
0, /* UINT16 min_len */
0)) /* UINT16 max_len */
{
l2cu_release_lcb (p_lcb);
L2CAP_TRACE_ERROR("initate direct connection fail, no resources");
return (FALSE);
}
else
{
p_lcb->link_state = LST_CONNECTING;
l2cb.is_ble_connecting = TRUE;
memcpy (l2cb.ble_connecting_bda, p_lcb->remote_bd_addr, BD_ADDR_LEN);
btu_start_timer (&p_lcb->timer_entry, BTU_TTYPE_L2CAP_LINK, L2CAP_BLE_LINK_CONNECT_TOUT);
btm_ble_set_conn_st (BLE_DIR_CONN);
return (TRUE);
}
}
/*******************************************************************************
**
** Function l2c_ble_link_adjust_allocation
**
** Description This function is called when a link is created or removed
** to calculate the amount of packets each link may send to
** the HCI without an ack coming back.
**
** Currently, this is a simple allocation, dividing the
** number of Controller Packets by the number of links. In
** the future, QOS configuration should be examined.
**
** Returns void
**
*******************************************************************************/
void l2c_ble_link_adjust_allocation (void)
{
UINT16 qq, yy, qq_remainder;
tL2C_LCB *p_lcb;
UINT16 hi_quota, low_quota;
UINT16 num_lowpri_links = 0;
UINT16 num_hipri_links = 0;
UINT16 controller_xmit_quota = l2cb.num_lm_ble_bufs;
UINT16 high_pri_link_quota = L2CAP_HIGH_PRI_MIN_XMIT_QUOTA_A;
/* If no links active, reset buffer quotas and controller buffers */
if (l2cb.num_ble_links_active == 0)
{
l2cb.controller_le_xmit_window = l2cb.num_lm_ble_bufs;
l2cb.ble_round_robin_quota = l2cb.ble_round_robin_unacked = 0;
return;
}
/* First, count the links */
for (yy = 0, p_lcb = &l2cb.lcb_pool[0]; yy < MAX_L2CAP_LINKS; yy++, p_lcb++)
{
if (p_lcb->in_use && p_lcb->transport == BT_TRANSPORT_LE)
{
if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
num_hipri_links++;
else
num_lowpri_links++;
}
}
/* now adjust high priority link quota */
low_quota = num_lowpri_links ? 1 : 0;
while ( (num_hipri_links * high_pri_link_quota + low_quota) > controller_xmit_quota )
high_pri_link_quota--;
/* Work out the xmit quota and buffer quota high and low priorities */
hi_quota = num_hipri_links * high_pri_link_quota;
low_quota = (hi_quota < controller_xmit_quota) ? controller_xmit_quota - hi_quota : 1;
/* Work out and save the HCI xmit quota for each low priority link */
/* If each low priority link cannot have at least one buffer */
if (num_lowpri_links > low_quota)
{
l2cb.ble_round_robin_quota = low_quota;
qq = qq_remainder = 0;
}
/* If each low priority link can have at least one buffer */
else if (num_lowpri_links > 0)
{
l2cb.ble_round_robin_quota = 0;
l2cb.ble_round_robin_unacked = 0;
qq = low_quota / num_lowpri_links;
qq_remainder = low_quota % num_lowpri_links;
}
/* If no low priority link */
else
{
l2cb.ble_round_robin_quota = 0;
l2cb.ble_round_robin_unacked = 0;
qq = qq_remainder = 0;
}
L2CAP_TRACE_EVENT ("l2c_ble_link_adjust_allocation num_hipri: %u num_lowpri: %u low_quota: %u round_robin_quota: %u qq: %u",
num_hipri_links, num_lowpri_links, low_quota,
l2cb.ble_round_robin_quota, qq);
/* Now, assign the quotas to each link */
for (yy = 0, p_lcb = &l2cb.lcb_pool[0]; yy < MAX_L2CAP_LINKS; yy++, p_lcb++)
{
if (p_lcb->in_use && p_lcb->transport == BT_TRANSPORT_LE)
{
if (p_lcb->acl_priority == L2CAP_PRIORITY_HIGH)
{
p_lcb->link_xmit_quota = high_pri_link_quota;
}
else
{
/* Safety check in case we switched to round-robin with something outstanding */
/* if sent_not_acked is added into round_robin_unacked then don't add it again */
/* l2cap keeps updating sent_not_acked for exiting from round robin */
if (( p_lcb->link_xmit_quota > 0 )&&( qq == 0 ))
l2cb.ble_round_robin_unacked += p_lcb->sent_not_acked;
p_lcb->link_xmit_quota = qq;
if (qq_remainder > 0)
{
p_lcb->link_xmit_quota++;
qq_remainder--;
}
}
L2CAP_TRACE_EVENT("l2c_ble_link_adjust_allocation LCB %d Priority: %d XmitQuota: %d",
yy, p_lcb->acl_priority, p_lcb->link_xmit_quota);
L2CAP_TRACE_EVENT(" SentNotAcked: %d RRUnacked: %d",
p_lcb->sent_not_acked, l2cb.round_robin_unacked);
/* There is a special case where we have readjusted the link quotas and */
/* this link may have sent anything but some other link sent packets so */
/* so we may need a timer to kick off this link's transmissions. */
if ( (p_lcb->link_state == LST_CONNECTED)
&& (!list_is_empty(p_lcb->link_xmit_data_q))
&& (p_lcb->sent_not_acked < p_lcb->link_xmit_quota) )
btu_start_timer (&p_lcb->timer_entry, BTU_TTYPE_L2CAP_LINK, L2CAP_LINK_FLOW_CONTROL_TOUT);
}
}
}
/*******************************************************************************
**
** Function l2cble_init_direct_conn
**
** Description This function is to initate a direct connection
**
** Returns TRUE connection initiated, FALSE otherwise.
**
*******************************************************************************/
BOOLEAN l2cble_init_direct_conn (tL2C_LCB *p_lcb)
{
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (p_lcb->remote_bd_addr);
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
UINT16 scan_int;
UINT16 scan_win;
BD_ADDR peer_addr;
UINT8 peer_addr_type = BLE_ADDR_PUBLIC;
UINT8 own_addr_type = BLE_ADDR_PUBLIC;
/* There can be only one BLE connection request outstanding at a time */
if (p_dev_rec == NULL)
{
L2CAP_TRACE_WARNING ("unknown device, can not initate connection");
return(FALSE);
}
scan_int = (p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int;
scan_win = (p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF) ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win;
peer_addr_type = p_lcb->ble_addr_type;
memcpy(peer_addr, p_lcb->remote_bd_addr, BD_ADDR_LEN);
#if ( (defined BLE_PRIVACY_SPT) && (BLE_PRIVACY_SPT == TRUE))
own_addr_type = btm_cb.ble_ctr_cb.privacy_mode ? BLE_ADDR_RANDOM : BLE_ADDR_PUBLIC;
if (p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT)
{
if (btm_cb.ble_ctr_cb.privacy_mode >= BTM_PRIVACY_1_2)
own_addr_type |= BLE_ADDR_TYPE_ID_BIT;
btm_ble_enable_resolving_list(BTM_BLE_RL_INIT);
btm_random_pseudo_to_identity_addr(peer_addr, &peer_addr_type);
}
else
btm_ble_disable_resolving_list(BTM_BLE_RL_INIT, TRUE);
#endif
if (!btm_ble_topology_check(BTM_BLE_STATE_INIT))
{
l2cu_release_lcb (p_lcb);
L2CAP_TRACE_ERROR("initate direct connection fail, topology limitation");
return FALSE;
}
if (!btsnd_hcic_ble_create_ll_conn (scan_int,/* UINT16 scan_int */
scan_win, /* UINT16 scan_win */
FALSE, /* UINT8 white_list */
peer_addr_type, /* UINT8 addr_type_peer */
peer_addr, /* BD_ADDR bda_peer */
own_addr_type, /* UINT8 addr_type_own */
(UINT16) ((p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.min_conn_int : BTM_BLE_CONN_INT_MIN_DEF), /* UINT16 conn_int_min */
(UINT16) ((p_dev_rec->conn_params.max_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.max_conn_int : BTM_BLE_CONN_INT_MAX_DEF), /* UINT16 conn_int_max */
(UINT16) ((p_dev_rec->conn_params.slave_latency != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.slave_latency : BTM_BLE_CONN_SLAVE_LATENCY_DEF), /* UINT16 conn_latency */
(UINT16) ((p_dev_rec->conn_params.supervision_tout != BTM_BLE_CONN_PARAM_UNDEF) ?
p_dev_rec->conn_params.supervision_tout : BTM_BLE_CONN_TIMEOUT_DEF), /* conn_timeout */
0, /* UINT16 min_len */
0)) /* UINT16 max_len */
{
l2cu_release_lcb (p_lcb);
L2CAP_TRACE_ERROR("initate direct connection fail, no resources");
return (FALSE);
}
else
{
p_lcb->link_state = LST_CONNECTING;
l2cb.is_ble_connecting = TRUE;
memcpy (l2cb.ble_connecting_bda, p_lcb->remote_bd_addr, BD_ADDR_LEN);
btu_start_timer (&p_lcb->timer_entry, BTU_TTYPE_L2CAP_LINK, L2CAP_BLE_LINK_CONNECT_TOUT);
btm_ble_set_conn_st (BLE_DIR_CONN);
return (TRUE);
}
}
/*******************************************************************************
**
** Function sdp_config_ind
**
** Description This function processes the L2CAP configuration indication
** event.
**
** Returns void
**
*******************************************************************************/
static void sdp_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg)
{
tCONN_CB *p_ccb;
/* Find CCB based on CID */
if ((p_ccb = sdpu_find_ccb_by_cid (l2cap_cid)) == NULL)
{
SDP_TRACE_WARNING1 ("SDP - Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid);
return;
}
/* Remember the remote MTU size */
if (!p_cfg->mtu_present)
{
/* use min(L2CAP_DEFAULT_MTU,SDP_MTU_SIZE) for GKI buffer size reasons */
p_ccb->rem_mtu_size = (L2CAP_DEFAULT_MTU > SDP_MTU_SIZE)?SDP_MTU_SIZE:L2CAP_DEFAULT_MTU;
}
else
{
if (p_cfg->mtu > SDP_MTU_SIZE)
p_ccb->rem_mtu_size = SDP_MTU_SIZE;
else
p_ccb->rem_mtu_size = p_cfg->mtu;
}
/* For now, always accept configuration from the other side */
p_cfg->flush_to_present = FALSE;
p_cfg->mtu_present = FALSE;
p_cfg->result = L2CAP_CFG_OK;
/* Check peer config request against our rfcomm configuration */
if (p_cfg->fcr_present)
{
/* Reject the window size if it is bigger than we want it to be */
if (p_cfg->fcr.mode != L2CAP_FCR_BASIC_MODE)
{
if (sdp_cb.l2cap_my_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE
&& p_cfg->fcr.tx_win_sz > sdp_cb.l2cap_my_cfg.fcr.tx_win_sz)
{
p_cfg->fcr.tx_win_sz = sdp_cb.l2cap_my_cfg.fcr.tx_win_sz;
p_cfg->result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
SDP_TRACE_DEBUG0("sdp_config_ind(CONFIG) -> Please try again with SMALLER TX WINDOW");
}
/* Reject if locally we want basic and they don't */
if (sdp_cb.l2cap_my_cfg.fcr.mode == L2CAP_FCR_BASIC_MODE)
{
/* Ask for a new setup */
p_cfg->fcr.mode = L2CAP_FCR_BASIC_MODE;
p_cfg->result = L2CAP_CFG_UNACCEPTABLE_PARAMS;
SDP_TRACE_DEBUG0("sdp_config_ind(CONFIG) -> Please try again with BASIC mode");
}
/* Remain in configure state and give the peer our desired configuration */
if (p_cfg->result != L2CAP_CFG_OK)
{
SDP_TRACE_WARNING1 ("SDP - Rcvd cfg ind, Unacceptable Parameters sent cfg cfm, CID: 0x%x", l2cap_cid);
L2CA_ConfigRsp (l2cap_cid, p_cfg);
return;
}
}
else /* We agree with peer's request */
p_cfg->fcr_present = FALSE;
}
L2CA_ConfigRsp (l2cap_cid, p_cfg);
SDP_TRACE_EVENT1 ("SDP - Rcvd cfg ind, sent cfg cfm, CID: 0x%x", l2cap_cid);
p_ccb->con_flags |= SDP_FLAGS_HIS_CFG_DONE;
if (p_ccb->con_flags & SDP_FLAGS_MY_CFG_DONE)
{
p_ccb->con_state = SDP_STATE_CONNECTED;
if (p_ccb->con_flags & SDP_FLAGS_IS_ORIG)
sdp_disc_connected (p_ccb);
else
/* Start inactivity timer */
btu_start_timer (&p_ccb->timer_entry, BTU_TTYPE_SDP, SDP_INACT_TIMEOUT);
}
}
/*******************************************************************************
**
** Function hidh_l2cif_disconnect_ind
**
** Description This function handles a disconnect event from L2CAP. If
** requested to, we ack the disconnect before dropping the CCB
**
** Returns void
**
*******************************************************************************/
static void hidh_l2cif_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed)
{
UINT8 dhandle;
tHID_CONN *p_hcon = NULL;
UINT16 disc_res = HCI_SUCCESS;
UINT16 hid_close_evt_reason;
/* Find CCB based on CID */
if( (dhandle = find_conn_by_cid(l2cap_cid)) < HID_HOST_MAX_DEVICES )
p_hcon = &hh_cb.devices[dhandle].conn;
if (p_hcon == NULL)
{
HIDH_TRACE_WARNING ("HID-Host Rcvd L2CAP disc, unknown CID: 0x%x", l2cap_cid);
return;
}
if (ack_needed)
L2CA_DisconnectRsp (l2cap_cid);
HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP disc, CID: 0x%x", l2cap_cid);
p_hcon->conn_state = HID_CONN_STATE_DISCONNECTING;
if (l2cap_cid == p_hcon->ctrl_cid)
p_hcon->ctrl_cid = 0;
else
p_hcon->intr_cid = 0;
if ((p_hcon->ctrl_cid == 0) && (p_hcon->intr_cid == 0))
{
hh_cb.devices[dhandle].state = HID_DEV_NO_CONN;
p_hcon->conn_state = HID_CONN_STATE_UNUSED;
if( !ack_needed )
disc_res = btm_get_acl_disc_reason_code();
HIDH_TRACE_EVENT ("HID-Host: acl disconnect reason %d", disc_res);
#if (HID_HOST_MAX_CONN_RETRY > 0)
if( (disc_res == HCI_ERR_CONNECTION_TOUT || disc_res == HCI_ERR_UNSPECIFIED) &&
(!(hh_cb.devices[dhandle].attr_mask & HID_RECONN_INIT)) &&
(hh_cb.devices[dhandle].attr_mask & HID_NORMALLY_CONNECTABLE))
{
hh_cb.devices[dhandle].conn_tries = 0;
hh_cb.devices[dhandle].conn.timer_entry.param = (UINT32) dhandle;
HIDH_TRACE_EVENT ("HID-Host: starting timer for reconnection");
btu_start_timer (&(hh_cb.devices[dhandle].conn.timer_entry), BTU_TTYPE_HID_HOST_REPAGE_TO, HID_HOST_REPAGE_WIN);
hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, disc_res, NULL);
}
else
#endif
{
/* Set reason code for HID_HDEV_EVT_CLOSE */
hid_close_evt_reason = p_hcon->disc_reason;
/* If we got baseband sent HCI_DISCONNECT_COMPLETE_EVT due to security failure, then set reason to HID_ERR_AUTH_FAILED */
if ((disc_res == HCI_ERR_AUTH_FAILURE) ||
(disc_res == HCI_ERR_KEY_MISSING) ||
(disc_res == HCI_ERR_HOST_REJECT_SECURITY) ||
(disc_res == HCI_ERR_PAIRING_NOT_ALLOWED) ||
(disc_res == HCI_ERR_UNIT_KEY_USED) ||
(disc_res == HCI_ERR_PAIRING_WITH_UNIT_KEY_NOT_SUPPORTED) ||
(disc_res == HCI_ERR_ENCRY_MODE_NOT_ACCEPTABLE) ||
(disc_res == HCI_ERR_REPEATED_ATTEMPTS))
{
hid_close_evt_reason = HID_ERR_AUTH_FAILED;
}
HIDH_TRACE_EVENT ("HID-Host: disconnect ind, reason = %d", hid_close_evt_reason);
hh_cb.callback( dhandle, hh_cb.devices[dhandle].addr, HID_HDEV_EVT_CLOSE, hid_close_evt_reason, NULL ) ;
}
}
}
/*******************************************************************************
**
** Function l2c_rcv_acl_data
**
** Description This function is called from the HCI Interface when an ACL
** data packet is received.
**
** Returns void
**
*******************************************************************************/
void l2c_rcv_acl_data (BT_HDR *p_msg)
{
UINT8 *p = (UINT8 *)(p_msg + 1) + p_msg->offset;
UINT16 handle, hci_len;
UINT8 pkt_type;
tL2C_LCB *p_lcb;
tL2C_CCB *p_ccb = NULL;
UINT16 l2cap_len, rcv_cid, psm;
/* Extract the handle */
STREAM_TO_UINT16 (handle, p);
pkt_type = HCID_GET_EVENT (handle);
handle = HCID_GET_HANDLE (handle);
/* Since the HCI Transport is putting segmented packets back together, we */
/* should never get a valid packet with the type set to "continuation" */
if (pkt_type != L2CAP_PKT_CONTINUE) {
/* Find the LCB based on the handle */
if ((p_lcb = l2cu_find_lcb_by_handle (handle)) == NULL) {
UINT8 cmd_code;
/* There is a slight possibility (specifically with USB) that we get an */
/* L2CAP connection request before we get the HCI connection complete. */
/* So for these types of messages, hold them for up to 2 seconds. */
STREAM_TO_UINT16 (hci_len, p);
STREAM_TO_UINT16 (l2cap_len, p);
STREAM_TO_UINT16 (rcv_cid, p);
STREAM_TO_UINT8 (cmd_code, p);
if ((p_msg->layer_specific == 0) && (rcv_cid == L2CAP_SIGNALLING_CID)
&& (cmd_code == L2CAP_CMD_INFO_REQ || cmd_code == L2CAP_CMD_CONN_REQ)) {
L2CAP_TRACE_WARNING ("L2CAP - holding ACL for unknown handle:%d ls:%d"
" cid:%d opcode:%d cur count:%d", handle, p_msg->layer_specific,
rcv_cid, cmd_code, list_length(l2cb.rcv_pending_q));
p_msg->layer_specific = 2;
list_append(l2cb.rcv_pending_q, p_msg);
if (list_length(l2cb.rcv_pending_q) == 1) {
btu_start_timer (&l2cb.rcv_hold_tle, BTU_TTYPE_L2CAP_HOLD, BT_1SEC_TIMEOUT);
}
return;
} else {
L2CAP_TRACE_ERROR ("L2CAP - rcvd ACL for unknown handle:%d ls:%d cid:%d"
" opcode:%d cur count:%d", handle, p_msg->layer_specific, rcv_cid,
cmd_code, list_length(l2cb.rcv_pending_q));
}
GKI_freebuf (p_msg);
return;
}
} else {
L2CAP_TRACE_WARNING ("L2CAP - expected pkt start or complete, got: %d", pkt_type);
GKI_freebuf (p_msg);
return;
}
/* Extract the length and update the buffer header */
STREAM_TO_UINT16 (hci_len, p);
p_msg->offset += 4;
/* Extract the length and CID */
STREAM_TO_UINT16 (l2cap_len, p);
STREAM_TO_UINT16 (rcv_cid, p);
#if BLE_INCLUDED == TRUE
/* for BLE channel, always notify connection when ACL data received on the link */
if (p_lcb && p_lcb->transport == BT_TRANSPORT_LE && p_lcb->link_state != LST_DISCONNECTING)
/* only process fixed channel data as channel open indication when link is not in disconnecting mode */
{
l2cble_notify_le_connection(p_lcb->remote_bd_addr);
}
#endif
L2CAP_TRACE_DEBUG ("L2CAP - rcv_cid CID: 0x%04x\n", rcv_cid);
/* Find the CCB for this CID */
if (rcv_cid >= L2CAP_BASE_APPL_CID) {
if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, rcv_cid)) == NULL) {
L2CAP_TRACE_WARNING ("L2CAP - unknown CID: 0x%04x", rcv_cid);
GKI_freebuf (p_msg);
return;
}
}
if (hci_len >= L2CAP_PKT_OVERHEAD) { /* Must receive at least the L2CAP length and CID.*/
p_msg->len = hci_len - L2CAP_PKT_OVERHEAD;
p_msg->offset += L2CAP_PKT_OVERHEAD;
} else {
L2CAP_TRACE_WARNING ("L2CAP - got incorrect hci header" );
GKI_freebuf (p_msg);
return;
}
if (l2cap_len != p_msg->len) {
L2CAP_TRACE_WARNING ("L2CAP - bad length in pkt. Exp: %d Act: %d",
l2cap_len, p_msg->len);
GKI_freebuf (p_msg);
return;
}
/* Send the data through the channel state machine */
if (rcv_cid == L2CAP_SIGNALLING_CID) {
//counter_add("l2cap.sig.rx.bytes", l2cap_len);
//counter_add("l2cap.sig.rx.pkts", 1);
#if (CLASSIC_BT_INCLUDED == TRUE)
process_l2cap_cmd (p_lcb, p, l2cap_len);
#endif ///CLASSIC_BT_INCLUDED == TRUE
GKI_freebuf (p_msg);
} else if (rcv_cid == L2CAP_CONNECTIONLESS_CID) {
//counter_add("l2cap.ch2.rx.bytes", l2cap_len);
//counter_add("l2cap.ch2.rx.pkts", 1);
/* process_connectionless_data (p_lcb); */
STREAM_TO_UINT16 (psm, p);
L2CAP_TRACE_DEBUG( "GOT CONNECTIONLESS DATA PSM:%d", psm ) ;
#if (L2CAP_UCD_INCLUDED == TRUE)
/* if it is not broadcast, check UCD registration */
if ( l2c_ucd_check_rx_pkts( p_lcb, p_msg ) ) {
/* nothing to do */
} else
#endif
GKI_freebuf (p_msg);
}
#if (BLE_INCLUDED == TRUE)
else if (rcv_cid == L2CAP_BLE_SIGNALLING_CID) {
//counter_add("l2cap.ble.rx.bytes", l2cap_len);
//counter_add("l2cap.ble.rx.pkts", 1);
l2cble_process_sig_cmd (p_lcb, p, l2cap_len);
GKI_freebuf (p_msg);
}
#endif
#if (L2CAP_NUM_FIXED_CHNLS > 0)
else if ((rcv_cid >= L2CAP_FIRST_FIXED_CHNL) && (rcv_cid <= L2CAP_LAST_FIXED_CHNL) &&
(l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb != NULL) ) {
//counter_add("l2cap.fix.rx.bytes", l2cap_len);
//counter_add("l2cap.fix.rx.pkts", 1);
/* If no CCB for this channel, allocate one */
if (p_lcb &&
/* only process fixed channel data when link is open or wait for data indication */
(p_lcb->link_state != LST_DISCONNECTING) &&
l2cu_initialize_fixed_ccb (p_lcb, rcv_cid, &l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts)) {
p_ccb = p_lcb->p_fixed_ccbs[rcv_cid - L2CAP_FIRST_FIXED_CHNL];
if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE) {
#if (CLASSIC_BT_INCLUDED == TRUE)
l2c_fcr_proc_pdu (p_ccb, p_msg);
#endif ///CLASSIC_BT_INCLUDED == TRUE
} else
(*l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb)
(rcv_cid, p_lcb->remote_bd_addr, p_msg);
} else {
GKI_freebuf (p_msg);
}
}
#endif
else {
//counter_add("l2cap.dyn.rx.bytes", l2cap_len);
//counter_add("l2cap.dyn.rx.pkts", 1);
if (p_ccb == NULL) {
GKI_freebuf (p_msg);
} else {
/* Basic mode packets go straight to the state machine */
if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_BASIC_MODE) {
#if (CLASSIC_BT_INCLUDED == TRUE)
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DATA, p_msg);
#endif ///CLASSIC_BT_INCLUDED == TRUE
} else {
/* eRTM or streaming mode, so we need to validate states first */
if ((p_ccb->chnl_state == CST_OPEN) || (p_ccb->chnl_state == CST_CONFIG)) {
#if (CLASSIC_BT_INCLUDED == TRUE)
l2c_fcr_proc_pdu (p_ccb, p_msg);
#endif ///CLASSIC_BT_INCLUDED == TRUE
} else {
GKI_freebuf (p_msg);
}
}
}
}
}
/*******************************************************************************
**
** Function smp_data_received
**
** Description This function is called when data is received from L2CAP on
** SMP channel.
**
**
** Returns void
**
*******************************************************************************/
static void smp_data_received(UINT16 channel, BD_ADDR bd_addr, BT_HDR *p_buf)
{
tSMP_CB *p_cb = &smp_cb;
UINT8 *p = (UINT8 *)(p_buf + 1) + p_buf->offset;
UINT8 cmd ;
SMP_TRACE_EVENT ("SMDBG l2c %s", __FUNCTION__);
STREAM_TO_UINT8(cmd, p);
/* sanity check */
if ((SMP_OPCODE_MAX < cmd) || (SMP_OPCODE_MIN > cmd))
{
SMP_TRACE_WARNING( "Ignore received command with RESERVED code 0x%02x", cmd);
GKI_freebuf (p_buf);
return;
}
/* reject the pairing request if there is an on-going SMP pairing */
if (SMP_OPCODE_PAIRING_REQ == cmd || SMP_OPCODE_SEC_REQ == cmd)
{
if ((p_cb->state == SMP_STATE_IDLE) && (p_cb->br_state == SMP_BR_STATE_IDLE) &&
!(p_cb->flags & SMP_PAIR_FLAGS_WE_STARTED_DD))
{
p_cb->role = L2CA_GetBleConnRole(bd_addr);
memcpy(&p_cb->pairing_bda[0], bd_addr, BD_ADDR_LEN);
}
else if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN))
{
GKI_freebuf (p_buf);
smp_reject_unexpected_pairing_command(bd_addr);
return;
}
/* else, out of state pairing request/security request received, passed into SM */
}
if (memcmp(&bd_addr[0], p_cb->pairing_bda, BD_ADDR_LEN) == 0)
{
btu_stop_timer (&p_cb->rsp_timer_ent);
btu_start_timer (&p_cb->rsp_timer_ent, BTU_TTYPE_SMP_PAIRING_CMD,
SMP_WAIT_FOR_RSP_TOUT);
if (cmd == SMP_OPCODE_CONFIRM)
{
SMP_TRACE_DEBUG ("in %s cmd = 0x%02x, peer_auth_req = 0x%02x,"
"loc_auth_req = 0x%02x",
__FUNCTION__, cmd, p_cb->peer_auth_req, p_cb->loc_auth_req);
if ((p_cb->peer_auth_req & SMP_SC_SUPPORT_BIT) &&
(p_cb->loc_auth_req & SMP_SC_SUPPORT_BIT))
{
cmd = SMP_OPCODE_PAIR_COMMITM;
}
}
p_cb->rcvd_cmd_code = cmd;
p_cb->rcvd_cmd_len = (UINT8) p_buf->len;
smp_sm_event(p_cb, cmd, p);
}
GKI_freebuf (p_buf);
}
/*******************************************************************************
**
** Function BNEP_Connect
**
** Description This function creates a BNEP connection to a remote
** device.
**
** Parameters: p_rem_addr - BD_ADDR of the peer
** src_uuid - source uuid for the connection
** dst_uuid - destination uuid for the connection
** p_handle - pointer to return the handle for the connection
**
** Returns BNEP_SUCCESS if connection started
** BNEP_NO_RESOURCES if no resources
**
*******************************************************************************/
tBNEP_RESULT BNEP_Connect (BD_ADDR p_rem_bda,
tBT_UUID *src_uuid,
tBT_UUID *dst_uuid,
UINT16 *p_handle)
{
UINT16 cid;
tBNEP_CONN *p_bcb = bnepu_find_bcb_by_bd_addr (p_rem_bda);
BNEP_TRACE_API ("BNEP_Connect() BDA: %02x-%02x-%02x-%02x-%02x-%02x",
p_rem_bda[0], p_rem_bda[1], p_rem_bda[2],
p_rem_bda[3], p_rem_bda[4], p_rem_bda[5]);
if (!bnep_cb.profile_registered)
return BNEP_WRONG_STATE;
/* Both source and destination UUID lengths should be same */
if (src_uuid->len != dst_uuid->len)
return BNEP_CONN_FAILED_UUID_SIZE;
#if (!defined (BNEP_SUPPORTS_ALL_UUID_LENGTHS) || BNEP_SUPPORTS_ALL_UUID_LENGTHS == FALSE)
if (src_uuid->len != 2)
return BNEP_CONN_FAILED_UUID_SIZE;
#endif
if (!p_bcb)
{
if ((p_bcb = bnepu_allocate_bcb (p_rem_bda)) == NULL)
return (BNEP_NO_RESOURCES);
}
else if (p_bcb->con_state != BNEP_STATE_CONNECTED)
return BNEP_WRONG_STATE;
else
{
/* Backup current UUID values to restore if role change fails */
memcpy ((UINT8 *)&(p_bcb->prv_src_uuid), (UINT8 *)&(p_bcb->src_uuid), sizeof (tBT_UUID));
memcpy ((UINT8 *)&(p_bcb->prv_dst_uuid), (UINT8 *)&(p_bcb->dst_uuid), sizeof (tBT_UUID));
}
/* We are the originator of this connection */
p_bcb->con_flags |= BNEP_FLAGS_IS_ORIG;
memcpy ((UINT8 *)&(p_bcb->src_uuid), (UINT8 *)src_uuid, sizeof (tBT_UUID));
memcpy ((UINT8 *)&(p_bcb->dst_uuid), (UINT8 *)dst_uuid, sizeof (tBT_UUID));
if (p_bcb->con_state == BNEP_STATE_CONNECTED)
{
/* Transition to the next appropriate state, waiting for connection confirm. */
p_bcb->con_state = BNEP_STATE_SEC_CHECKING;
BNEP_TRACE_API ("BNEP initiating security procedures for src uuid 0x%x",
p_bcb->src_uuid.uu.uuid16);
#if (defined (BNEP_DO_AUTH_FOR_ROLE_SWITCH) && BNEP_DO_AUTH_FOR_ROLE_SWITCH == TRUE)
btm_sec_mx_access_request (p_bcb->rem_bda, BT_PSM_BNEP, TRUE,
BTM_SEC_PROTO_BNEP,
bnep_get_uuid32(src_uuid),
&bnep_sec_check_complete, p_bcb);
#else
bnep_sec_check_complete (p_bcb->rem_bda, p_bcb, BTM_SUCCESS);
#endif
}
else
{
/* Transition to the next appropriate state, waiting for connection confirm. */
p_bcb->con_state = BNEP_STATE_CONN_START;
if ((cid = L2CA_ConnectReq (BT_PSM_BNEP, p_bcb->rem_bda)) != 0)
{
p_bcb->l2cap_cid = cid;
}
else
{
BNEP_TRACE_ERROR ("BNEP - Originate failed");
if (bnep_cb.p_conn_state_cb)
(*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED, FALSE);
bnepu_release_bcb (p_bcb);
return BNEP_CONN_FAILED;
}
/* Start timer waiting for connect */
btu_start_timer (&p_bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_CONN_TIMEOUT);
}
*p_handle = p_bcb->handle;
return (BNEP_SUCCESS);
}
/*******************************************************************************
**
** Function l2c_rcv_acl_data
**
** Description This function is called from the HCI Interface when an ACL
** data packet is received.
**
** Returns void
**
*******************************************************************************/
void l2c_rcv_acl_data (BT_HDR *p_msg)
{
UINT8 *p = (UINT8 *)(p_msg + 1) + p_msg->offset;
UINT16 handle, hci_len;
UINT8 pkt_type;
tL2C_LCB *p_lcb;
tL2C_CCB *p_ccb = NULL;
UINT16 l2cap_len, rcv_cid, psm;
/* Extract the handle */
STREAM_TO_UINT16 (handle, p);
pkt_type = HCID_GET_EVENT (handle);
handle = HCID_GET_HANDLE (handle);
/* Since the HCI Transport is putting segmented packets back together, we */
/* should never get a valid packet with the type set to "continuation" */
if (pkt_type != L2CAP_PKT_CONTINUE)
{
/* Find the LCB based on the handle */
if ((p_lcb = l2cu_find_lcb_by_handle (handle)) == NULL)
{
UINT8 cmd_code;
/* There is a slight possibility (specifically with USB) that we get an */
/* L2CAP connection request before we get the HCI connection complete. */
/* So for these types of messages, hold them for up to 2 seconds. */
STREAM_TO_UINT16 (hci_len, p);
STREAM_TO_UINT16 (l2cap_len, p);
STREAM_TO_UINT16 (rcv_cid, p);
STREAM_TO_UINT8 (cmd_code, p);
if ((p_msg->layer_specific == 0) && (rcv_cid == L2CAP_SIGNALLING_CID)
&& (cmd_code == L2CAP_CMD_INFO_REQ || cmd_code == L2CAP_CMD_CONN_REQ))
{
L2CAP_TRACE_WARNING5 ("L2CAP - holding ACL for unknown handle:%d ls:%d cid:%d opcode:%d cur count:%d",
handle, p_msg->layer_specific, rcv_cid, cmd_code,
l2cb.rcv_hold_q.count);
p_msg->layer_specific = 2;
GKI_enqueue (&l2cb.rcv_hold_q, p_msg);
if (l2cb.rcv_hold_q.count == 1)
btu_start_timer (&l2cb.rcv_hold_tle, BTU_TTYPE_L2CAP_HOLD, BT_1SEC_TIMEOUT);
return;
}
else
{
L2CAP_TRACE_ERROR5 ("L2CAP - rcvd ACL for unknown handle:%d ls:%d cid:%d opcode:%d cur count:%d",
handle, p_msg->layer_specific, rcv_cid, cmd_code, l2cb.rcv_hold_q.count);
}
GKI_freebuf (p_msg);
return;
}
}
else
{
L2CAP_TRACE_WARNING1 ("L2CAP - expected pkt start or complete, got: %d", pkt_type);
GKI_freebuf (p_msg);
return;
}
/* Extract the length and update the buffer header */
STREAM_TO_UINT16 (hci_len, p);
p_msg->offset += 4;
#if (L2CAP_HOST_FLOW_CTRL == TRUE)
/* Send ack if we hit the threshold */
if (++p_lcb->link_pkts_unacked >= p_lcb->link_ack_thresh)
btu_hcif_send_host_rdy_for_data();
#endif
/* Extract the length and CID */
STREAM_TO_UINT16 (l2cap_len, p);
STREAM_TO_UINT16 (rcv_cid, p);
/* Find the CCB for this CID */
if (rcv_cid >= L2CAP_BASE_APPL_CID)
{
if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, rcv_cid)) == NULL)
{
L2CAP_TRACE_WARNING1 ("L2CAP - unknown CID: 0x%04x", rcv_cid);
GKI_freebuf (p_msg);
return;
}
}
if (hci_len >= L2CAP_PKT_OVERHEAD) /* Must receive at least the L2CAP length and CID.*/
{
p_msg->len = hci_len - L2CAP_PKT_OVERHEAD;
p_msg->offset += L2CAP_PKT_OVERHEAD;
}
else
{
L2CAP_TRACE_WARNING0 ("L2CAP - got incorrect hci header" );
GKI_freebuf (p_msg);
return;
}
if (l2cap_len != p_msg->len)
{
L2CAP_TRACE_WARNING2 ("L2CAP - bad length in pkt. Exp: %d Act: %d",
l2cap_len, p_msg->len);
GKI_freebuf (p_msg);
return;
}
/* Send the data through the channel state machine */
if (rcv_cid == L2CAP_SIGNALLING_CID)
{
process_l2cap_cmd (p_lcb, p, l2cap_len);
GKI_freebuf (p_msg);
}
else if (rcv_cid == L2CAP_CONNECTIONLESS_CID)
{
/* process_connectionless_data (p_lcb); */
STREAM_TO_UINT16 (psm, p);
L2CAP_TRACE_DEBUG1( "GOT CONNECTIONLESS DATA PSM:%d", psm ) ;
#if (TCS_BCST_SETUP_INCLUDED == TRUE && TCS_INCLUDED == TRUE)
if (psm == TCS_PSM_INTERCOM || psm == TCS_PSM_CORDLESS)
{
p_msg->offset += L2CAP_BCST_OVERHEAD;
p_msg->len -= L2CAP_BCST_OVERHEAD;
tcs_proc_bcst_msg( p_lcb->remote_bd_addr, p_msg ) ;
GKI_freebuf (p_msg);
}
else
#endif
#if (L2CAP_UCD_INCLUDED == TRUE)
/* if it is not broadcast, check UCD registration */
if ( l2c_ucd_check_rx_pkts( p_lcb, p_msg ) )
{
/* nothing to do */
}
else
#endif
GKI_freebuf (p_msg);
}
#if (BLE_INCLUDED == TRUE)
else if (rcv_cid == L2CAP_BLE_SIGNALLING_CID)
{
l2cble_process_sig_cmd (p_lcb, p, l2cap_len);
GKI_freebuf (p_msg);
}
#endif
#if (L2CAP_NUM_FIXED_CHNLS > 0)
else if ((rcv_cid >= L2CAP_FIRST_FIXED_CHNL) && (rcv_cid <= L2CAP_LAST_FIXED_CHNL) &&
(l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb != NULL) )
{
/* If no CCB for this channel, allocate one */
if (l2cu_initialize_fixed_ccb (p_lcb, rcv_cid, &l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
{
p_ccb = p_lcb->p_fixed_ccbs[rcv_cid - L2CAP_FIRST_FIXED_CHNL];
if (p_ccb->peer_cfg.fcr.mode != L2CAP_FCR_BASIC_MODE)
l2c_fcr_proc_pdu (p_ccb, p_msg);
else
(*l2cb.fixed_reg[rcv_cid - L2CAP_FIRST_FIXED_CHNL].pL2CA_FixedData_Cb)(p_lcb->remote_bd_addr, p_msg);
}
else
GKI_freebuf (p_msg);
}
#endif
else
{
if (p_ccb == NULL)
GKI_freebuf (p_msg);
else
{
/* Basic mode packets go straight to the state machine */
if (p_ccb->peer_cfg.fcr.mode == L2CAP_FCR_BASIC_MODE)
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DATA, p_msg);
else
{
/* eRTM or streaming mode, so we need to validate states first */
if ((p_ccb->chnl_state == CST_OPEN) || (p_ccb->chnl_state == CST_CONFIG))
l2c_fcr_proc_pdu (p_ccb, p_msg);
else
GKI_freebuf (p_msg);
}
}
}
}
