/*******************************************************************************
**
** Function bta_hh_start_sdp
**
** Description Start SDP service search, and obtain necessary SDP records.
** Only one SDP service search request is allowed at the same
** time. For every BTA_HhOpen API call, do SDP first unless SDP
** has been done previously.
**
** Returns void
**
*******************************************************************************/
void bta_hh_start_sdp(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
{
tBTA_HH_STATUS status = BTA_HH_ERR_SDP;
UINT8 hdl;
p_cb->sec_mask = p_data->api_conn.sec_mask;
p_cb->mode = p_data->api_conn.mode;
bta_hh_cb.p_cur = p_cb;
#if (BTA_HH_LE_INCLUDED == TRUE)
if (bta_hh_is_le_device(p_cb, p_data->api_conn.bd_addr))
{
bta_hh_le_open_conn(p_cb, p_data->api_conn.bd_addr);
return;
}
#endif
/* if previously virtually cabled device, skip SDP */
if (p_cb->app_id)
{
status = BTA_HH_OK;
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG("bta_hh_start_sdp:: skip SDP for known devices");
#endif
if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE)
{
if (HID_HostAddDev (p_cb->addr, p_cb->attr_mask, &hdl) \
== HID_SUCCESS)
{
/* update device CB with newly register device handle */
bta_hh_add_device_to_list(p_cb, hdl, p_cb->attr_mask, NULL,
p_cb->sub_class,
p_cb->dscp_info.ssr_max_latency,
p_cb->dscp_info.ssr_min_tout,
p_cb->app_id);
/* update cb_index[] map */
bta_hh_cb.cb_index[hdl] = p_cb->index;
}
else
status = BTA_HH_ERR_NO_RES;
}
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
return;
}
/* GetSDPRecord. at one time only one SDP precedure can be active */
else if (!bta_hh_cb.p_disc_db)
{
bta_hh_cb.p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(p_bta_hh_cfg->sdp_db_size);
if (bta_hh_cb.p_disc_db == NULL)
{
status = BTA_HH_ERR_NO_RES;
}
else
{
bta_hh_cb.p_cur = p_cb;
/* do DI discovery first */
if (SDP_DiDiscover(p_data->api_conn.bd_addr,
bta_hh_cb.p_disc_db,
p_bta_hh_cfg->sdp_db_size,
bta_hh_di_sdp_cback) != SDP_SUCCESS)
{
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG ("bta_hh_start_sdp: SDP_DiDiscover failed: \
Status 0x%2X",status);
#endif
status = BTA_HH_ERR_SDP;
utl_freebuf((void **)&bta_hh_cb.p_disc_db);
}
else
/*******************************************************************************
**
** 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 bta_hh_sdp_cback
**
** Description SDP callback function.
**
** Returns void
**
*******************************************************************************/
static void bta_hh_sdp_cback(UINT16 result, UINT16 attr_mask,
tHID_DEV_SDP_INFO *sdp_rec )
{
tBTA_HH_DEV_CB *p_cb = bta_hh_cb.p_cur;
UINT8 hdl = 0;
tBTA_HH_STATUS status = BTA_HH_ERR_SDP;
/* make sure sdp succeeded and hh has not been disabled */
if ((result == SDP_SUCCESS) && (p_cb != NULL))
{
/* security is required for the connection, add attr_mask bit*/
if (p_cb->sec_mask)
attr_mask |= HID_SEC_REQUIRED;
#if BTA_HH_DEBUG
APPL_TRACE_EVENT("bta_hh_sdp_cback: p_cb: %d result 0x%02x, \
attr_mask 0x%02x, handle %x", \
p_cb, result, attr_mask,p_cb->hid_handle);
#endif
/* check to see type of device is supported , and should not been added before */
if (bta_hh_tod_spt(p_cb, sdp_rec->sub_class))
{
/* if not added before */
if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE)
{
/* add device/update attr_mask information */
if(HID_HostAddDev (p_cb->addr, attr_mask, &hdl) == HID_SUCCESS)
{
status = BTA_HH_OK;
/* update cb_index[] map */
bta_hh_cb.cb_index[hdl] = p_cb->index;
}
else
{
p_cb->app_id = 0;
}
}
else
{
hdl = p_cb->hid_handle;
}
/* else : incoming connection after SDP should update the SDP information as well */
if (p_cb->app_id != 0)
{
/* update cb information with attr_mask, dscp_info etc. */
bta_hh_add_device_to_list(p_cb, hdl, attr_mask,
&sdp_rec->dscp_info,
sdp_rec->sub_class,
sdp_rec->ssr_max_latency,
sdp_rec->ssr_min_tout,
p_cb->app_id);
p_cb->dscp_info.ctry_code = sdp_rec->ctry_code;
status = BTA_HH_OK;
}
}
else /* type of device is not supported */
status = BTA_HH_ERR_TOD_UNSPT;
}
/* free disc_db when SDP is completed */
utl_freebuf((void **)&bta_hh_cb.p_disc_db);
/* send SDP_CMPL_EVT into state machine */
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
return;
}
/*******************************************************************************
**
** 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_EVENT2 ("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];
/* Check we are in the correct state for this */
if (psm == HID_PSM_INTERRUPT)
{
if (p_hcon->ctrl_cid == 0)
{
HIDH_TRACE_WARNING0 ("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_WARNING1 ("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_WARNING1 ("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(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);
}
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_EVENT2 ("HID-Host Rcvd L2CAP conn ind, sent config req, PSM: 0x%04x CID 0x%x",
psm, l2cap_cid);
}
