/*******************************************************************************
**
** Function avdt_ccb_chk_timer
**
** Description This function stops the CCB timer if the idle timer is
** running.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_ccb_chk_timer(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
{
if (p_ccb->timer_entry.event == BTU_TTYPE_AVDT_CCB_IDLE)
{
btu_stop_timer(&p_ccb->timer_entry);
}
}
/*******************************************************************************
**
** 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 bta_pan_scb_dealloc
**
** Description Deallocate a link control block.
**
**
** Returns void
**
*******************************************************************************/
void bta_pan_scb_dealloc(tBTA_PAN_SCB *p_scb)
{
APPL_TRACE_DEBUG("bta_pan_scb_dealloc %d", bta_pan_scb_to_idx(p_scb));
if (p_scb->is_idle_timer_started == TRUE)
{
/* Ensure that timer is stopped */
btu_stop_timer (&p_scb->idle_tle);
}
memset(p_scb, 0, sizeof(tBTA_PAN_SCB));
}
/*******************************************************************************
**
** Function avdt_scb_dealloc
**
** Description Deallocate a stream control block.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_scb_dealloc(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
{
UNUSED(p_data);
AVDT_TRACE_DEBUG("avdt_scb_dealloc hdl=%d\n", avdt_scb_to_hdl(p_scb));
btu_stop_timer(&p_scb->timer_entry);
#if AVDT_MULTIPLEXING == TRUE
/* free fragments we're holding, if any; it shouldn't happen */
fixed_queue_free(p_scb->frag_q, osi_free_func);
#endif
memset(p_scb, 0, sizeof(tAVDT_SCB));
}
void btu_deregister_timer(TIMER_LIST_ENT *p_tle)
{
UINT8 i = 0;
for (; i < BTU_MAX_REG_TIMER; i++)
{
if (btu_cb.timer_reg[i].p_tle == p_tle)
{
btu_stop_timer(p_tle);
btu_cb.timer_reg[i].timer_cb = NULL;
btu_cb.timer_reg[i].p_tle = NULL;
break;
}
}
}
/*******************************************************************************
**
** 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 HID_HostCloseDev
**
** Description This function disconnects the device.
**
** Returns void
**
*******************************************************************************/
tHID_STATUS HID_HostCloseDev( UINT8 dev_handle )
{
if( !hh_cb.reg_flag )
return (HID_ERR_NOT_REGISTERED);
if( (dev_handle >= HID_HOST_MAX_DEVICES) || (!hh_cb.devices[dev_handle].in_use) )
return HID_ERR_INVALID_PARAM;
hh_cb.devices[dev_handle].conn_tries = HID_HOST_MAX_CONN_RETRY+1;
btu_stop_timer( &(hh_cb.devices[dev_handle].conn.timer_entry) ) ;
if( hh_cb.devices[dev_handle].state != HID_DEV_CONNECTED )
return HID_ERR_NO_CONNECTION;
hh_cb.devices[dev_handle].conn_tries = HID_HOST_MAX_CONN_RETRY+1;
return hidh_conn_disconnect( dev_handle );
}
/*******************************************************************************
**
** Function avdt_scb_dealloc
**
** Description Deallocate a stream control block.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_scb_dealloc(tAVDT_SCB *p_scb, tAVDT_SCB_EVT *p_data)
{
#if AVDT_MULTIPLEXING == TRUE
void *p_buf;
#endif
UNUSED(p_data);
AVDT_TRACE_DEBUG("avdt_scb_dealloc hdl=%d", avdt_scb_to_hdl(p_scb));
btu_stop_timer(&p_scb->timer_entry);
#if AVDT_MULTIPLEXING == TRUE
/* free fragments we're holding, if any; it shouldn't happen */
while ((p_buf = GKI_dequeue (&p_scb->frag_q)) != NULL)
GKI_freebuf(p_buf);
#endif
memset(p_scb, 0, sizeof(tAVDT_SCB));
}
/*******************************************************************************
**
** Function btm_read_local_name_complete
**
** Description This function is called when local name read complete.
** message is received from the HCI.
**
** Returns void
**
*******************************************************************************/
void btm_read_local_name_complete (UINT8 *p, UINT16 evt_len)
{
tBTM_CMPL_CB *p_cb = btm_cb.devcb.p_rln_cmpl_cb;
UINT8 status;
UNUSED(evt_len);
btu_stop_timer (&btm_cb.devcb.rln_timer);
/* If there was a callback address for read local name, call it */
btm_cb.devcb.p_rln_cmpl_cb = NULL;
if (p_cb)
{
STREAM_TO_UINT8 (status, p);
if (status == HCI_SUCCESS)
(*p_cb)(p);
else
(*p_cb)(NULL);
}
}
/*******************************************************************************
**
** Function l2cble_scanner_conn_comp
**
** Description This function is called when an HCI Connection Complete
** event is received while we are a scanner (so we are master).
**
** Returns void
**
*******************************************************************************/
void l2cble_scanner_conn_comp (UINT16 handle, BD_ADDR bda, tBLE_ADDR_TYPE type,
UINT16 conn_interval, UINT16 conn_latency, UINT16 conn_timeout)
{
tL2C_LCB *p_lcb;
tBTM_SEC_DEV_REC *p_dev_rec = btm_find_or_alloc_dev (bda);
L2CAP_TRACE_DEBUG5 ("l2cble_scanner_conn_comp: HANDLE=%d addr_type=%d conn_interval=%d slave_latency=%d supervision_tout=%d",
handle, type, conn_interval, conn_latency, conn_timeout);
l2cb.is_ble_connecting = FALSE;
/* See if we have a link control block for the remote device */
p_lcb = l2cu_find_lcb_by_bd_addr (bda);
/* If we don't have one, create one. this is auto connection complete. */
if (!p_lcb)
{
p_lcb = l2cu_allocate_lcb (bda, FALSE);
if (!p_lcb)
{
btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
L2CAP_TRACE_ERROR0 ("l2cble_scanner_conn_comp - failed to allocate LCB");
return;
}
else
{
if (!l2cu_initialize_fixed_ccb (p_lcb, L2CAP_ATT_CID, &l2cb.fixed_reg[L2CAP_ATT_CID - L2CAP_FIRST_FIXED_CHNL].fixed_chnl_opts))
{
btm_sec_disconnect (handle, HCI_ERR_NO_CONNECTION);
L2CAP_TRACE_WARNING0 ("l2cble_scanner_conn_comp - LCB but no CCB");
return ;
}
}
}
else if (p_lcb->link_state != LST_CONNECTING)
{
L2CAP_TRACE_ERROR1 ("L2CAP got BLE scanner conn_comp in bad state: %d", p_lcb->link_state);
return;
}
btu_stop_timer(&p_lcb->timer_entry);
/* Save the handle */
p_lcb->handle = handle;
/* Connected OK. Change state to connected, we were scanning so we are master */
p_lcb->link_state = LST_CONNECTED;
p_lcb->link_role = HCI_ROLE_MASTER;
p_lcb->is_ble_link = TRUE;
/* If there are any preferred connection parameters, set them now */
if ( (p_dev_rec->conn_params.min_conn_int >= BTM_BLE_CONN_INT_MIN ) &&
(p_dev_rec->conn_params.min_conn_int <= BTM_BLE_CONN_INT_MAX ) &&
(p_dev_rec->conn_params.max_conn_int >= BTM_BLE_CONN_INT_MIN ) &&
(p_dev_rec->conn_params.max_conn_int <= BTM_BLE_CONN_INT_MAX ) &&
(p_dev_rec->conn_params.slave_latency <= BTM_BLE_CONN_LATENCY_MAX ) &&
(p_dev_rec->conn_params.supervision_tout >= BTM_BLE_CONN_SUP_TOUT_MIN) &&
(p_dev_rec->conn_params.supervision_tout <= BTM_BLE_CONN_SUP_TOUT_MAX) &&
((conn_interval < p_dev_rec->conn_params.min_conn_int &&
p_dev_rec->conn_params.min_conn_int != BTM_BLE_CONN_PARAM_UNDEF) ||
(conn_interval > p_dev_rec->conn_params.max_conn_int) ||
(conn_latency > p_dev_rec->conn_params.slave_latency) ||
(conn_timeout > p_dev_rec->conn_params.supervision_tout)))
{
L2CAP_TRACE_ERROR5 ("upd_ll_conn_params: HANDLE=%d min_conn_int=%d max_conn_int=%d slave_latency=%d supervision_tout=%d",
handle, p_dev_rec->conn_params.min_conn_int, p_dev_rec->conn_params.max_conn_int,
p_dev_rec->conn_params.slave_latency, p_dev_rec->conn_params.supervision_tout);
btsnd_hcic_ble_upd_ll_conn_params (handle,
p_dev_rec->conn_params.min_conn_int,
p_dev_rec->conn_params.max_conn_int,
p_dev_rec->conn_params.slave_latency,
p_dev_rec->conn_params.supervision_tout,
0, 0);
}
/* Tell BTM Acl management about the link */
btm_acl_created (bda, NULL, p_dev_rec->sec_bd_name, handle, p_lcb->link_role, TRUE);
if (p_lcb->p_echo_rsp_cb)
{
L2CAP_TRACE_ERROR0 ("l2cu_send_peer_echo_req");
l2cu_send_peer_echo_req (p_lcb, NULL, 0);
}
p_lcb->peer_chnl_mask[0] = L2CAP_FIXED_CHNL_ATT_BIT | L2CAP_FIXED_CHNL_BLE_SIG_BIT | L2CAP_FIXED_CHNL_SMP_BIT;
l2cu_process_fixed_chnl_resp (p_lcb);
}
/*******************************************************************************
**
** Function hidh_l2cif_connect_ind
**
** Description This function handles an inbound connection indication
** from L2CAP. This is the case where we are acting as a
** server.
**
** Returns void
**
*******************************************************************************/
static void hidh_l2cif_connect_ind (BD_ADDR bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id)
{
tHID_CONN *p_hcon;
BOOLEAN bAccept = TRUE;
UINT8 i = HID_HOST_MAX_DEVICES;
tHID_HOST_DEV_CTB *p_dev;
HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP conn ind, PSM: 0x%04x CID 0x%x", psm, l2cap_cid);
/* always add incoming connection device into HID database by default */
if (HID_HostAddDev(bd_addr, HID_SEC_REQUIRED, &i) != HID_SUCCESS)
{
L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_SECURITY_BLOCK, 0);
return;
}
p_hcon = &hh_cb.devices[i].conn;
p_dev = &hh_cb.devices[i];
/* Stop the retry timer if active */
#if (HID_HOST_MAX_CONN_RETRY > 0)
#if (HID_HOST_REPAGE_WIN > 0)
HIDH_TRACE_DEBUG ("HID-Host stopping retry timer as l2cap is connected from remote side");
p_dev->conn_tries = HID_HOST_MAX_CONN_RETRY+1;
btu_stop_timer(&(p_dev->conn.timer_entry));
#endif
#endif
/* Check we are in the correct state for this */
if (psm == HID_PSM_INTERRUPT)
{
if (p_hcon->ctrl_cid == 0)
{
HIDH_TRACE_WARNING ("HID-Host Rcvd INTR L2CAP conn ind, but no CTL channel");
bAccept = FALSE;
}
if (p_hcon->conn_state != HID_CONN_STATE_CONNECTING_INTR)
{
HIDH_TRACE_WARNING ("HID-Host Rcvd INTR L2CAP conn ind, wrong state: %d",
p_hcon->conn_state);
bAccept = FALSE;
}
}
else /* CTRL channel */
{
#if defined(HID_HOST_ACPT_NEW_CONN) && (HID_HOST_ACPT_NEW_CONN == TRUE)
p_hcon->ctrl_cid = p_hcon->intr_cid = 0;
p_hcon->conn_state = HID_CONN_STATE_UNUSED;
#else
if (p_hcon->conn_state != HID_CONN_STATE_UNUSED)
{
HIDH_TRACE_WARNING ("HID-Host - Rcvd CTL L2CAP conn ind, wrong state: %d",
p_hcon->conn_state);
bAccept = FALSE;
}
#endif
}
if (!bAccept)
{
L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_NO_RESOURCES, 0);
return;
}
if (psm == HID_PSM_CONTROL)
{
p_hcon->conn_flags = 0;
p_hcon->ctrl_cid = l2cap_cid;
p_hcon->ctrl_id = l2cap_id;
p_hcon->disc_reason = HID_L2CAP_CONN_FAIL; /* In case disconnection occurs before security is completed, then set CLOSE_EVT reason code to 'connection failure' */
p_hcon->conn_state = HID_CONN_STATE_SECURITY;
if (!interop_addr_match(INTEROP_DISABLE_AUTH_FOR_HID_POINTING, (bt_bdaddr_t*)p_dev->addr))
{
if(btm_sec_mx_access_request (p_dev->addr, HID_PSM_CONTROL,
FALSE, BTM_SEC_PROTO_HID,
(p_dev->attr_mask & HID_SEC_REQUIRED) ? HID_SEC_CHN : HID_NOSEC_CHN,
&hidh_sec_check_complete_term, p_dev) == BTM_CMD_STARTED)
{
L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_PENDING, L2CAP_CONN_OK);
}
}
else
{
/* device is blacklisted, don't perform authentication */
L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_PENDING, L2CAP_CONN_OK);
hidh_sec_check_complete_term(p_dev->addr, BT_TRANSPORT_BR_EDR,
p_dev, BTM_SUCCESS);
}
return;
}
/* Transition to the next appropriate state, configuration */
p_hcon->conn_state = HID_CONN_STATE_CONFIG;
p_hcon->intr_cid = l2cap_cid;
/* Send response to the L2CAP layer. */
L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_OK, L2CAP_CONN_OK);
/* Send a Configuration Request. */
L2CA_ConfigReq (l2cap_cid, &hh_cb.l2cap_cfg);
HIDH_TRACE_EVENT ("HID-Host Rcvd L2CAP conn ind, sent config req, PSM: 0x%04x CID 0x%x",
psm, l2cap_cid);
}
/*******************************************************************************
**
** Function rfc_timer_stop
**
** Description Stop RFC Timer
**
*******************************************************************************/
void rfc_timer_stop (tRFC_MCB *p_mcb)
{
RFCOMM_TRACE_EVENT ("rfc_timer_stop");
btu_stop_timer (&p_mcb->tle);
}
/*******************************************************************************
**
** Function process_l2cap_cmd
**
** Description This function is called when a packet is received on the
** L2CAP signalling CID
**
** Returns void
**
*******************************************************************************/
static void process_l2cap_cmd (tL2C_LCB *p_lcb, UINT8 *p, UINT16 pkt_len)
{
UINT8 *p_pkt_end, *p_next_cmd, *p_cfg_end, *p_cfg_start;
UINT8 cmd_code, cfg_code, cfg_len, id;
tL2C_CONN_INFO con_info;
tL2CAP_CFG_INFO cfg_info;
UINT16 rej_reason, rej_mtu, lcid, rcid, info_type;
tL2C_CCB *p_ccb;
tL2C_RCB *p_rcb;
BOOLEAN cfg_rej;
UINT16 cfg_rej_len, cmd_len;
UINT16 result;
tL2C_CONN_INFO ci;
#if (defined BLE_INCLUDED && BLE_INCLUDED == TRUE)
/* if l2cap command received in CID 1 on top of an LE link, ignore this command */
if (p_lcb->is_ble_link)
return;
#endif
p_next_cmd = p;
p_pkt_end = p + pkt_len;
memset (&cfg_info, 0, sizeof(cfg_info));
/* An L2CAP packet may contain multiple commands */
while (TRUE)
{
/* Smallest command is 4 bytes */
if ((p = p_next_cmd) > (p_pkt_end - 4))
break;
STREAM_TO_UINT8 (cmd_code, p);
STREAM_TO_UINT8 (id, p);
STREAM_TO_UINT16 (cmd_len, p);
if(cmd_len > GKI_BUF2_SIZE)
{
L2CAP_TRACE_WARNING0 ("L2CAP - Invalid MTU Size");
l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_MTU_EXCEEDED, id, 0, 0);
return;
}
/* Check command length does not exceed packet length */
if ((p_next_cmd = p + cmd_len) > p_pkt_end)
{
L2CAP_TRACE_WARNING3 ("Command len bad pkt_len: %d cmd_len: %d code: %d",
pkt_len, cmd_len, cmd_code);
break;
}
switch (cmd_code)
{
case L2CAP_CMD_REJECT:
STREAM_TO_UINT16 (rej_reason, p);
if (rej_reason == L2CAP_CMD_REJ_MTU_EXCEEDED)
{
STREAM_TO_UINT16 (rej_mtu, p);
/* What to do with the MTU reject ? We have negotiated an MTU. For now */
/* we will ignore it and let a higher protocol timeout take care of it */
L2CAP_TRACE_WARNING2 ("L2CAP - MTU rej Handle: %d MTU: %d", p_lcb->handle, rej_mtu);
}
if (rej_reason == L2CAP_CMD_REJ_INVALID_CID)
{
STREAM_TO_UINT16 (rcid, p);
STREAM_TO_UINT16 (lcid, p);
L2CAP_TRACE_WARNING2 ("L2CAP - rej with CID invalid, LCID: 0x%04x RCID: 0x%04x", lcid, rcid);
/* Remote CID invalid. Treat as a disconnect */
if (((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
&& (p_ccb->remote_cid == rcid))
{
/* Fake link disconnect - no reply is generated */
l2c_csm_execute (p_ccb, L2CEVT_LP_DISCONNECT_IND, NULL);
}
}
/* SonyEricsson Info request Bug workaround (Continue connection) */
else if (rej_reason == L2CAP_CMD_REJ_NOT_UNDERSTOOD && p_lcb->w4_info_rsp)
{
btu_stop_timer (&p_lcb->info_timer_entry);
p_lcb->w4_info_rsp = FALSE;
ci.status = HCI_SUCCESS;
memcpy (ci.bd_addr, p_lcb->remote_bd_addr, sizeof(BD_ADDR));
/* For all channels, send the event through their FSMs */
for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
{
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_INFO_RSP, &ci);
}
}
break;
case L2CAP_CMD_CONN_REQ:
STREAM_TO_UINT16 (con_info.psm, p);
STREAM_TO_UINT16 (rcid, p);
if ((p_rcb = l2cu_find_rcb_by_psm (con_info.psm)) == NULL)
{
L2CAP_TRACE_WARNING1 ("L2CAP - rcvd conn req for unknown PSM: %d", con_info.psm);
l2cu_reject_connection (p_lcb, rcid, id, L2CAP_CONN_NO_PSM);
break;
}
else
{
if (!p_rcb->api.pL2CA_ConnectInd_Cb)
{
L2CAP_TRACE_WARNING1 ("L2CAP - rcvd conn req for outgoing-only connection PSM: %d", con_info.psm);
l2cu_reject_connection (p_lcb, rcid, id, L2CAP_CONN_NO_PSM);
break;
}
}
if ((p_ccb = l2cu_allocate_ccb (p_lcb, 0)) == NULL)
{
L2CAP_TRACE_ERROR0 ("L2CAP - unable to allocate CCB");
l2cu_reject_connection (p_lcb, rcid, id, L2CAP_CONN_NO_RESOURCES);
break;
}
p_ccb->remote_id = id;
p_ccb->p_rcb = p_rcb;
p_ccb->remote_cid = rcid;
l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_REQ, &con_info);
break;
case L2CAP_CMD_CONN_RSP:
STREAM_TO_UINT16 (con_info.remote_cid, p);
STREAM_TO_UINT16 (lcid, p);
STREAM_TO_UINT16 (con_info.l2cap_result, p);
STREAM_TO_UINT16 (con_info.l2cap_status, p);
if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) == NULL)
{
L2CAP_TRACE_WARNING2 ("L2CAP - no CCB for conn rsp, LCID: %d RCID: %d",
lcid, con_info.remote_cid);
break;
}
if (p_ccb->local_id != id)
{
L2CAP_TRACE_WARNING2 ("L2CAP - con rsp - bad ID. Exp: %d Got: %d",
p_ccb->local_id, id);
break;
}
if (con_info.l2cap_result == L2CAP_CONN_OK)
l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP, &con_info);
else if (con_info.l2cap_result == L2CAP_CONN_PENDING)
l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP_PND, &con_info);
else
l2c_csm_execute(p_ccb, L2CEVT_L2CAP_CONNECT_RSP_NEG, &con_info);
break;
case L2CAP_CMD_CONFIG_REQ:
p_cfg_end = p + cmd_len;
cfg_rej = FALSE;
cfg_rej_len = 0;
STREAM_TO_UINT16 (lcid, p);
STREAM_TO_UINT16 (cfg_info.flags, p);
p_cfg_start = p;
cfg_info.flush_to_present = cfg_info.mtu_present = cfg_info.qos_present =
cfg_info.fcr_present = cfg_info.fcs_present = FALSE;
while (p < p_cfg_end)
{
STREAM_TO_UINT8 (cfg_code, p);
STREAM_TO_UINT8 (cfg_len, p);
switch (cfg_code & 0x7F)
{
case L2CAP_CFG_TYPE_MTU:
cfg_info.mtu_present = TRUE;
STREAM_TO_UINT16 (cfg_info.mtu, p);
break;
case L2CAP_CFG_TYPE_FLUSH_TOUT:
cfg_info.flush_to_present = TRUE;
STREAM_TO_UINT16 (cfg_info.flush_to, p);
break;
case L2CAP_CFG_TYPE_QOS:
cfg_info.qos_present = TRUE;
STREAM_TO_UINT8 (cfg_info.qos.qos_flags, p);
STREAM_TO_UINT8 (cfg_info.qos.service_type, p);
STREAM_TO_UINT32 (cfg_info.qos.token_rate, p);
STREAM_TO_UINT32 (cfg_info.qos.token_bucket_size, p);
STREAM_TO_UINT32 (cfg_info.qos.peak_bandwidth, p);
STREAM_TO_UINT32 (cfg_info.qos.latency, p);
STREAM_TO_UINT32 (cfg_info.qos.delay_variation, p);
break;
case L2CAP_CFG_TYPE_FCR:
cfg_info.fcr_present = TRUE;
STREAM_TO_UINT8 (cfg_info.fcr.mode, p);
STREAM_TO_UINT8 (cfg_info.fcr.tx_win_sz, p);
STREAM_TO_UINT8 (cfg_info.fcr.max_transmit, p);
STREAM_TO_UINT16 (cfg_info.fcr.rtrans_tout, p);
STREAM_TO_UINT16 (cfg_info.fcr.mon_tout, p);
STREAM_TO_UINT16 (cfg_info.fcr.mps, p);
break;
case L2CAP_CFG_TYPE_FCS:
cfg_info.fcs_present = TRUE;
STREAM_TO_UINT8 (cfg_info.fcs, p);
break;
case L2CAP_CFG_TYPE_EXT_FLOW:
cfg_info.ext_flow_spec_present = TRUE;
STREAM_TO_UINT8 (cfg_info.ext_flow_spec.id, p);
STREAM_TO_UINT8 (cfg_info.ext_flow_spec.stype, p);
STREAM_TO_UINT16 (cfg_info.ext_flow_spec.max_sdu_size, p);
STREAM_TO_UINT32 (cfg_info.ext_flow_spec.sdu_inter_time, p);
STREAM_TO_UINT32 (cfg_info.ext_flow_spec.access_latency, p);
STREAM_TO_UINT32 (cfg_info.ext_flow_spec.flush_timeout, p);
break;
default:
/* sanity check option length */
if ((cfg_len + L2CAP_CFG_OPTION_OVERHEAD) <= cmd_len)
{
p += cfg_len;
if ((cfg_code & 0x80) == 0)
{
cfg_rej_len += cfg_len + L2CAP_CFG_OPTION_OVERHEAD;
cfg_rej = TRUE;
}
}
/* bad length; force loop exit */
else
{
p = p_cfg_end;
cfg_rej = TRUE;
}
break;
}
}
if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
{
p_ccb->remote_id = id;
if (cfg_rej)
{
l2cu_send_peer_config_rej (p_ccb, p_cfg_start, (UINT16) (cmd_len - L2CAP_CONFIG_REQ_LEN), cfg_rej_len);
}
else
{
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_CONFIG_REQ, &cfg_info);
}
}
else
{
/* updated spec says send command reject on invalid cid */
l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_INVALID_CID, id, 0, 0);
}
break;
case L2CAP_CMD_CONFIG_RSP:
p_cfg_end = p + cmd_len;
STREAM_TO_UINT16 (lcid, p);
STREAM_TO_UINT16 (cfg_info.flags, p);
STREAM_TO_UINT16 (cfg_info.result, p);
cfg_info.flush_to_present = cfg_info.mtu_present = cfg_info.qos_present =
cfg_info.fcr_present = cfg_info.fcs_present = FALSE;
while (p < p_cfg_end)
{
STREAM_TO_UINT8 (cfg_code, p);
STREAM_TO_UINT8 (cfg_len, p);
switch (cfg_code & 0x7F)
{
case L2CAP_CFG_TYPE_MTU:
cfg_info.mtu_present = TRUE;
STREAM_TO_UINT16 (cfg_info.mtu, p);
break;
case L2CAP_CFG_TYPE_FLUSH_TOUT:
cfg_info.flush_to_present = TRUE;
STREAM_TO_UINT16 (cfg_info.flush_to, p);
break;
case L2CAP_CFG_TYPE_QOS:
cfg_info.qos_present = TRUE;
STREAM_TO_UINT8 (cfg_info.qos.qos_flags, p);
STREAM_TO_UINT8 (cfg_info.qos.service_type, p);
STREAM_TO_UINT32 (cfg_info.qos.token_rate, p);
STREAM_TO_UINT32 (cfg_info.qos.token_bucket_size, p);
STREAM_TO_UINT32 (cfg_info.qos.peak_bandwidth, p);
STREAM_TO_UINT32 (cfg_info.qos.latency, p);
STREAM_TO_UINT32 (cfg_info.qos.delay_variation, p);
break;
case L2CAP_CFG_TYPE_FCR:
cfg_info.fcr_present = TRUE;
STREAM_TO_UINT8 (cfg_info.fcr.mode, p);
STREAM_TO_UINT8 (cfg_info.fcr.tx_win_sz, p);
STREAM_TO_UINT8 (cfg_info.fcr.max_transmit, p);
STREAM_TO_UINT16 (cfg_info.fcr.rtrans_tout, p);
STREAM_TO_UINT16 (cfg_info.fcr.mon_tout, p);
STREAM_TO_UINT16 (cfg_info.fcr.mps, p);
break;
case L2CAP_CFG_TYPE_FCS:
cfg_info.fcs_present = TRUE;
STREAM_TO_UINT8 (cfg_info.fcs, p);
break;
case L2CAP_CFG_TYPE_EXT_FLOW:
cfg_info.ext_flow_spec_present = TRUE;
STREAM_TO_UINT8 (cfg_info.ext_flow_spec.id, p);
STREAM_TO_UINT8 (cfg_info.ext_flow_spec.stype, p);
STREAM_TO_UINT16 (cfg_info.ext_flow_spec.max_sdu_size, p);
STREAM_TO_UINT32 (cfg_info.ext_flow_spec.sdu_inter_time, p);
STREAM_TO_UINT32 (cfg_info.ext_flow_spec.access_latency, p);
STREAM_TO_UINT32 (cfg_info.ext_flow_spec.flush_timeout, p);
break;
}
}
if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
{
if (p_ccb->local_id != id)
{
L2CAP_TRACE_WARNING2 ("L2CAP - cfg rsp - bad ID. Exp: %d Got: %d",
p_ccb->local_id, id);
break;
}
if ( (cfg_info.result == L2CAP_CFG_OK) || (cfg_info.result == L2CAP_CFG_PENDING) )
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_CONFIG_RSP, &cfg_info);
else
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_CONFIG_RSP_NEG, &cfg_info);
}
else
{
L2CAP_TRACE_WARNING1 ("L2CAP - rcvd cfg rsp for unknown CID: 0x%04x", lcid);
}
break;
case L2CAP_CMD_DISC_REQ:
STREAM_TO_UINT16 (lcid, p);
STREAM_TO_UINT16 (rcid, p);
if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
{
if (p_ccb->remote_cid == rcid)
{
p_ccb->remote_id = id;
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DISCONNECT_REQ, &con_info);
}
}
else
l2cu_send_peer_disc_rsp (p_lcb, id, lcid, rcid);
break;
case L2CAP_CMD_DISC_RSP:
STREAM_TO_UINT16 (rcid, p);
STREAM_TO_UINT16 (lcid, p);
if ((p_ccb = l2cu_find_ccb_by_cid (p_lcb, lcid)) != NULL)
{
if ((p_ccb->remote_cid == rcid) && (p_ccb->local_id == id))
{
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_DISCONNECT_RSP, &con_info);
}
}
break;
case L2CAP_CMD_ECHO_REQ:
l2cu_send_peer_echo_rsp (p_lcb, id, p, cmd_len);
break;
case L2CAP_CMD_ECHO_RSP:
if (p_lcb->p_echo_rsp_cb)
{
tL2CA_ECHO_RSP_CB *p_cb = p_lcb->p_echo_rsp_cb;
/* Zero out the callback in case app immediately calls us again */
p_lcb->p_echo_rsp_cb = NULL;
(*p_cb) (L2CAP_PING_RESULT_OK);
}
break;
case L2CAP_CMD_INFO_REQ:
STREAM_TO_UINT16 (info_type, p);
l2cu_send_peer_info_rsp (p_lcb, id, info_type);
break;
case L2CAP_CMD_INFO_RSP:
/* Stop the link connect timer if sent before L2CAP connection is up */
if (p_lcb->w4_info_rsp)
{
btu_stop_timer (&p_lcb->info_timer_entry);
p_lcb->w4_info_rsp = FALSE;
}
STREAM_TO_UINT16 (info_type, p);
STREAM_TO_UINT16 (result, p);
p_lcb->info_rx_bits |= (1 << info_type);
if ( (info_type == L2CAP_EXTENDED_FEATURES_INFO_TYPE)
&& (result == L2CAP_INFO_RESP_RESULT_SUCCESS) )
{
STREAM_TO_UINT32( p_lcb->peer_ext_fea, p );
#if (L2CAP_NUM_FIXED_CHNLS > 0)
if (p_lcb->peer_ext_fea & L2CAP_EXTFEA_FIXED_CHNLS)
{
l2cu_send_peer_info_req (p_lcb, L2CAP_FIXED_CHANNELS_INFO_TYPE);
break;
}
else
{
l2cu_process_fixed_chnl_resp (p_lcb);
}
#endif
}
#if (L2CAP_NUM_FIXED_CHNLS > 0)
if (info_type == L2CAP_FIXED_CHANNELS_INFO_TYPE)
{
if (result == L2CAP_INFO_RESP_RESULT_SUCCESS)
{
memcpy (p_lcb->peer_chnl_mask, p, L2CAP_FIXED_CHNL_ARRAY_SIZE);
}
l2cu_process_fixed_chnl_resp (p_lcb);
}
#endif
#if (L2CAP_UCD_INCLUDED == TRUE)
else if (info_type == L2CAP_CONNLESS_MTU_INFO_TYPE)
{
if (result == L2CAP_INFO_RESP_RESULT_SUCCESS)
{
STREAM_TO_UINT16 (p_lcb->ucd_mtu, p);
}
}
#endif
ci.status = HCI_SUCCESS;
memcpy (ci.bd_addr, p_lcb->remote_bd_addr, sizeof(BD_ADDR));
for (p_ccb = p_lcb->ccb_queue.p_first_ccb; p_ccb; p_ccb = p_ccb->p_next_ccb)
{
l2c_csm_execute (p_ccb, L2CEVT_L2CAP_INFO_RSP, &ci);
}
break;
default:
L2CAP_TRACE_WARNING1 ("L2CAP - bad cmd code: %d", cmd_code);
l2cu_send_peer_cmd_reject (p_lcb, L2CAP_CMD_REJ_NOT_UNDERSTOOD, id, 0, 0);
return;
}
}
}
/*******************************************************************************
**
** 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);
}
