| /****************************************************************************** |
| * |
| * Copyright (C) 2001-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * this file contains the main BNEP functions |
| * |
| ******************************************************************************/ |
| |
| #include "bt_target.h" |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| #include "gki.h" |
| #include "bt_types.h" |
| #include "l2cdefs.h" |
| #include "hcidefs.h" |
| #include "hcimsgs.h" |
| |
| #include "l2c_api.h" |
| #include "l2cdefs.h" |
| |
| #include "btu.h" |
| #include "btm_api.h" |
| |
| #include "bnep_api.h" |
| #include "bnep_int.h" |
| |
| |
| /********************************************************************************/ |
| /* G L O B A L B N E P D A T A */ |
| /********************************************************************************/ |
| #if BNEP_DYNAMIC_MEMORY == FALSE |
| tBNEP_CB bnep_cb; |
| #endif |
| |
| const UINT16 bnep_frame_hdr_sizes[] = {14, 1, 2, 8, 8}; |
| |
| /********************************************************************************/ |
| /* L O C A L F U N C T I O N P R O T O T Y P E S */ |
| /********************************************************************************/ |
| static void bnep_connect_ind (BD_ADDR bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id); |
| static void bnep_connect_cfm (UINT16 l2cap_cid, UINT16 result); |
| static void bnep_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg); |
| static void bnep_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg); |
| static void bnep_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed); |
| static void bnep_disconnect_cfm (UINT16 l2cap_cid, UINT16 result); |
| static void bnep_data_ind (UINT16 l2cap_cid, BT_HDR *p_msg); |
| static void bnep_congestion_ind (UINT16 lcid, BOOLEAN is_congested); |
| |
| static void bnep_read_addr_cb (void *p_bda); |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_register_with_l2cap |
| ** |
| ** Description This function registers BNEP PSM with L2CAP |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| tBNEP_RESULT bnep_register_with_l2cap (void) |
| { |
| /* Initialize the L2CAP configuration. We only care about MTU and flush */ |
| memset(&bnep_cb.l2cap_my_cfg, 0, sizeof(tL2CAP_CFG_INFO)); |
| |
| bnep_cb.l2cap_my_cfg.mtu_present = TRUE; |
| bnep_cb.l2cap_my_cfg.mtu = BNEP_MTU_SIZE; |
| bnep_cb.l2cap_my_cfg.flush_to_present = TRUE; |
| bnep_cb.l2cap_my_cfg.flush_to = BNEP_FLUSH_TO; |
| |
| bnep_cb.reg_info.pL2CA_ConnectInd_Cb = bnep_connect_ind; |
| bnep_cb.reg_info.pL2CA_ConnectCfm_Cb = bnep_connect_cfm; |
| bnep_cb.reg_info.pL2CA_ConfigInd_Cb = bnep_config_ind; |
| bnep_cb.reg_info.pL2CA_ConfigCfm_Cb = bnep_config_cfm; |
| bnep_cb.reg_info.pL2CA_DisconnectInd_Cb = bnep_disconnect_ind; |
| bnep_cb.reg_info.pL2CA_DisconnectCfm_Cb = bnep_disconnect_cfm; |
| bnep_cb.reg_info.pL2CA_DataInd_Cb = bnep_data_ind; |
| bnep_cb.reg_info.pL2CA_CongestionStatus_Cb = bnep_congestion_ind; |
| |
| /* Now, register with L2CAP */ |
| if (!L2CA_Register (BT_PSM_BNEP, &bnep_cb.reg_info)) |
| { |
| BNEP_TRACE_ERROR0 ("BNEP - Registration failed"); |
| return BNEP_SECURITY_FAIL; |
| } |
| |
| return BNEP_SUCCESS; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_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 bnep_connect_ind (BD_ADDR bd_addr, UINT16 l2cap_cid, UINT16 psm, UINT8 l2cap_id) |
| { |
| tBNEP_CONN *p_bcb = bnepu_find_bcb_by_bd_addr (bd_addr); |
| |
| /* If we are not acting as server, or already have a connection, or have */ |
| /* no more resources to handle the connection, reject the connection. */ |
| if (!(bnep_cb.profile_registered) || (p_bcb) |
| || ((p_bcb = bnepu_allocate_bcb(bd_addr)) == NULL)) |
| { |
| L2CA_ConnectRsp (bd_addr, l2cap_id, l2cap_cid, L2CAP_CONN_NO_PSM, 0); |
| return; |
| } |
| |
| /* Transition to the next appropriate state, waiting for config setup. */ |
| p_bcb->con_state = BNEP_STATE_CFG_SETUP; |
| |
| /* Save the L2CAP Channel ID. */ |
| p_bcb->l2cap_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, &bnep_cb.l2cap_my_cfg); |
| |
| /* Start timer waiting for config setup */ |
| btu_start_timer (&p_bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_CONN_TIMEOUT); |
| |
| BNEP_TRACE_EVENT1("BNEP - Rcvd L2CAP conn ind, CID: 0x%x", p_bcb->l2cap_cid); |
| |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_connect_cfm |
| ** |
| ** Description This function handles the connect confirm events |
| ** from L2CAP. This is the case when we are acting as a |
| ** client and have sent a connect request. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void bnep_connect_cfm (UINT16 l2cap_cid, UINT16 result) |
| { |
| tBNEP_CONN *bcb; |
| |
| /* Find CCB based on CID */ |
| if ((bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL) |
| { |
| BNEP_TRACE_WARNING1 ("BNEP - Rcvd conn cnf for unknown CID 0x%x", l2cap_cid); |
| return; |
| } |
| |
| /* If the connection response contains success status, then */ |
| /* Transition to the next state and startup the timer. */ |
| if ((result == L2CAP_CONN_OK) && (bcb->con_state == BNEP_STATE_CONN_START)) |
| { |
| bcb->con_state = BNEP_STATE_CFG_SETUP; |
| |
| /* Send a Configuration Request. */ |
| L2CA_ConfigReq (l2cap_cid, &bnep_cb.l2cap_my_cfg); |
| |
| /* Start timer waiting for config results */ |
| btu_start_timer (&bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_CONN_TIMEOUT); |
| |
| BNEP_TRACE_EVENT1 ("BNEP - got conn cnf, sent cfg req, CID: 0x%x", bcb->l2cap_cid); |
| } |
| else |
| { |
| BNEP_TRACE_WARNING2 ("BNEP - Rcvd conn cnf with error: 0x%x CID 0x%x", result, bcb->l2cap_cid); |
| |
| /* Tell the upper layer, if he has a callback */ |
| if (bnep_cb.p_conn_state_cb && |
| bcb->con_flags & BNEP_FLAGS_IS_ORIG) |
| { |
| (*bnep_cb.p_conn_state_cb) (bcb->handle, bcb->rem_bda, BNEP_CONN_FAILED, FALSE); |
| } |
| |
| bnepu_release_bcb (bcb); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_config_ind |
| ** |
| ** Description This function processes the L2CAP configuration indication |
| ** event. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void bnep_config_ind (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg) |
| { |
| tBNEP_CONN *p_bcb; |
| UINT16 result, mtu = 0; |
| |
| /* Find CCB based on CID */ |
| if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL) |
| { |
| BNEP_TRACE_WARNING1 ("BNEP - Rcvd L2CAP cfg ind, unknown CID: 0x%x", l2cap_cid); |
| return; |
| } |
| |
| BNEP_TRACE_EVENT1 ("BNEP - Rcvd cfg ind, CID: 0x%x", l2cap_cid); |
| |
| /* Remember the remote MTU size */ |
| if ((!p_cfg->mtu_present) || (p_cfg->mtu < BNEP_MIN_MTU_SIZE)) |
| { |
| mtu = p_cfg->mtu; |
| p_cfg->flush_to_present = FALSE; |
| p_cfg->mtu_present = TRUE; |
| p_cfg->mtu = BNEP_MIN_MTU_SIZE; |
| p_cfg->result = result = L2CAP_CFG_UNACCEPTABLE_PARAMS; |
| } |
| else |
| { |
| if (p_cfg->mtu > BNEP_MTU_SIZE) |
| p_bcb->rem_mtu_size = BNEP_MTU_SIZE; |
| else |
| p_bcb->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 = result = L2CAP_CFG_OK; |
| } |
| |
| L2CA_ConfigRsp (l2cap_cid, p_cfg); |
| |
| if (result != L2CAP_CFG_OK) |
| { |
| BNEP_TRACE_EVENT2 ("BNEP - Rcvd cfg ind with bad MTU %d, CID: 0x%x", mtu, l2cap_cid); |
| return; |
| } |
| |
| p_bcb->con_flags |= BNEP_FLAGS_HIS_CFG_DONE; |
| |
| if (p_bcb->con_flags & BNEP_FLAGS_MY_CFG_DONE) |
| { |
| p_bcb->con_state = BNEP_STATE_SEC_CHECKING; |
| |
| /* Start timer waiting for setup or response */ |
| btu_start_timer (&p_bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_HOST_TIMEOUT); |
| |
| if (p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) |
| { |
| btm_sec_mx_access_request (p_bcb->rem_bda, BT_PSM_BNEP, TRUE, |
| BTM_SEC_PROTO_BNEP, |
| bnep_get_uuid32(&(p_bcb->src_uuid)), |
| &bnep_sec_check_complete, p_bcb); |
| } |
| } |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_config_cfm |
| ** |
| ** Description This function processes the L2CAP configuration confirmation |
| ** event. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void bnep_config_cfm (UINT16 l2cap_cid, tL2CAP_CFG_INFO *p_cfg) |
| { |
| tBNEP_CONN *p_bcb; |
| |
| BNEP_TRACE_EVENT2 ("BNEP - Rcvd cfg cfm, CID: 0x%x Result: %d", l2cap_cid, p_cfg->result); |
| |
| /* Find CCB based on CID */ |
| if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL) |
| { |
| BNEP_TRACE_WARNING1 ("BNEP - 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_bcb->con_flags |= BNEP_FLAGS_MY_CFG_DONE; |
| |
| if (p_bcb->con_flags & BNEP_FLAGS_HIS_CFG_DONE) |
| { |
| p_bcb->con_state = BNEP_STATE_SEC_CHECKING; |
| |
| /* Start timer waiting for setup or response */ |
| btu_start_timer (&p_bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_HOST_TIMEOUT); |
| |
| if (p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) |
| { |
| btm_sec_mx_access_request (p_bcb->rem_bda, BT_PSM_BNEP, TRUE, |
| BTM_SEC_PROTO_BNEP, |
| bnep_get_uuid32(&(p_bcb->src_uuid)), |
| &bnep_sec_check_complete, p_bcb); |
| } |
| } |
| } |
| else |
| { |
| /* Tell the upper layer, if he has a callback */ |
| if ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (bnep_cb.p_conn_state_cb)) |
| { |
| (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED_CFG, FALSE); |
| } |
| |
| L2CA_DisconnectReq (p_bcb->l2cap_cid); |
| |
| bnepu_release_bcb (p_bcb); |
| } |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_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 bnep_disconnect_ind (UINT16 l2cap_cid, BOOLEAN ack_needed) |
| { |
| tBNEP_CONN *p_bcb; |
| |
| if (ack_needed) |
| L2CA_DisconnectRsp (l2cap_cid); |
| |
| /* Find CCB based on CID */ |
| if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL) |
| { |
| BNEP_TRACE_WARNING1 ("BNEP - Rcvd L2CAP disc, unknown CID: 0x%x", l2cap_cid); |
| return; |
| } |
| |
| BNEP_TRACE_EVENT1 ("BNEP - Rcvd L2CAP disc, CID: 0x%x", l2cap_cid); |
| |
| /* Tell the user if he has a callback */ |
| if (p_bcb->con_state == BNEP_STATE_CONNECTED) |
| { |
| if (bnep_cb.p_conn_state_cb) |
| (*bnep_cb.p_conn_state_cb)(p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_DISCONNECTED, FALSE); |
| } |
| else |
| { |
| if (((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (bnep_cb.p_conn_state_cb)) || |
| p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED) |
| (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_CONN_FAILED, FALSE); |
| } |
| |
| bnepu_release_bcb (p_bcb); |
| } |
| |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_disconnect_cfm |
| ** |
| ** Description This function gets the disconnect confirm event from L2CAP |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void bnep_disconnect_cfm (UINT16 l2cap_cid, UINT16 result) |
| { |
| BNEP_TRACE_EVENT2 ("BNEP - Rcvd L2CAP disc cfm, CID: 0x%x, Result 0x%x", l2cap_cid, result); |
| } |
| |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_congestion_ind |
| ** |
| ** Description This is a callback function called by L2CAP when |
| ** congestion status changes |
| ** |
| *******************************************************************************/ |
| static void bnep_congestion_ind (UINT16 l2cap_cid, BOOLEAN is_congested) |
| { |
| tBNEP_CONN *p_bcb; |
| |
| /* Find BCB based on CID */ |
| if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL) |
| { |
| BNEP_TRACE_WARNING1 ("BNEP - Rcvd L2CAP cong, unknown CID: 0x%x", l2cap_cid); |
| return; |
| } |
| |
| if (is_congested) |
| { |
| p_bcb->con_flags |= BNEP_FLAGS_L2CAP_CONGESTED; |
| if(bnep_cb.p_tx_data_flow_cb) |
| { |
| bnep_cb.p_tx_data_flow_cb(p_bcb->handle, BNEP_TX_FLOW_OFF); |
| } |
| } |
| else |
| { |
| p_bcb->con_flags &= ~BNEP_FLAGS_L2CAP_CONGESTED; |
| |
| if(bnep_cb.p_tx_data_flow_cb) |
| { |
| bnep_cb.p_tx_data_flow_cb(p_bcb->handle, BNEP_TX_FLOW_ON); |
| } |
| |
| /* While not congested, send as many buffers as we can */ |
| while (!(p_bcb->con_flags & BNEP_FLAGS_L2CAP_CONGESTED)) |
| { |
| BT_HDR *p_buf = (BT_HDR *)GKI_dequeue (&p_bcb->xmit_q); |
| |
| if (!p_buf) |
| break; |
| |
| L2CA_DataWrite (l2cap_cid, p_buf); |
| } |
| } |
| } |
| |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_data_ind |
| ** |
| ** Description This function is called when data is received from L2CAP. |
| ** if we are the originator of the connection, we are the SDP |
| ** client, and the received message is queued up for the client. |
| ** |
| ** If we are the destination of the connection, we are the SDP |
| ** server, so the message is passed to the server processing |
| ** function. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void bnep_data_ind (UINT16 l2cap_cid, BT_HDR *p_buf) |
| { |
| tBNEP_CONN *p_bcb; |
| UINT8 *p = (UINT8 *)(p_buf + 1) + p_buf->offset; |
| UINT16 rem_len = p_buf->len; |
| UINT8 type, ctrl_type, ext_type = 0; |
| BOOLEAN extension_present, fw_ext_present; |
| UINT16 protocol = 0; |
| UINT8 *p_src_addr, *p_dst_addr; |
| |
| |
| /* Find CCB based on CID */ |
| if ((p_bcb = bnepu_find_bcb_by_cid (l2cap_cid)) == NULL) |
| { |
| BNEP_TRACE_WARNING1 ("BNEP - Rcvd L2CAP data, unknown CID: 0x%x", l2cap_cid); |
| GKI_freebuf (p_buf); |
| return; |
| } |
| |
| /* Get the type and extension bits */ |
| type = *p++; |
| extension_present = type >> 7; |
| type &= 0x7f; |
| if ((rem_len <= bnep_frame_hdr_sizes[type]) || (rem_len > BNEP_MTU_SIZE)) |
| { |
| BNEP_TRACE_EVENT2 ("BNEP - rcvd frame, bad len: %d type: 0x%02x", p_buf->len, type); |
| GKI_freebuf (p_buf); |
| return; |
| } |
| |
| rem_len--; |
| |
| if ((p_bcb->con_state != BNEP_STATE_CONNECTED) && |
| (!(p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED)) && |
| (type != BNEP_FRAME_CONTROL)) |
| { |
| BNEP_TRACE_WARNING2 ("BNEP - Ignored L2CAP data while in state: %d, CID: 0x%x", |
| p_bcb->con_state, l2cap_cid); |
| |
| if (extension_present) |
| { |
| /* |
| ** When there is no connection if a data packet is received |
| ** with unknown control extension headers then those should be processed |
| ** according to complain/ignore law |
| */ |
| UINT8 ext, length, *p_data; |
| UINT16 org_len, new_len; |
| /* parse the extension headers and process unknown control headers */ |
| org_len = rem_len; |
| new_len = 0; |
| p_data = p; |
| do { |
| |
| ext = *p++; |
| length = *p++; |
| p += length; |
| |
| if ((!(ext & 0x7F)) && (*p > BNEP_FILTER_MULTI_ADDR_RESPONSE_MSG)) |
| bnep_send_command_not_understood (p_bcb, *p); |
| |
| new_len += (length + 2); |
| |
| if (new_len > org_len) |
| break; |
| |
| } while (ext & 0x80); |
| } |
| |
| GKI_freebuf (p_buf); |
| return; |
| } |
| |
| if (type > BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY) |
| { |
| BNEP_TRACE_EVENT1 ("BNEP - rcvd frame, unknown type: 0x%02x", type); |
| GKI_freebuf (p_buf); |
| return; |
| } |
| |
| BNEP_TRACE_DEBUG3 ("BNEP - rcv frame, type: %d len: %d Ext: %d", type, p_buf->len, extension_present); |
| |
| /* Initialize addresses to 'not supplied' */ |
| p_src_addr = p_dst_addr = NULL; |
| |
| switch (type) |
| { |
| case BNEP_FRAME_GENERAL_ETHERNET: |
| p_dst_addr = p; |
| p += BD_ADDR_LEN; |
| p_src_addr = p; |
| p += BD_ADDR_LEN; |
| BE_STREAM_TO_UINT16 (protocol, p); |
| rem_len -= 14; |
| break; |
| |
| case BNEP_FRAME_CONTROL: |
| ctrl_type = *p; |
| p = bnep_process_control_packet (p_bcb, p, &rem_len, FALSE); |
| |
| if (ctrl_type == BNEP_SETUP_CONNECTION_REQUEST_MSG && |
| p_bcb->con_state != BNEP_STATE_CONNECTED && |
| extension_present && p && rem_len) |
| { |
| p_bcb->p_pending_data = (BT_HDR *)GKI_getbuf (rem_len); |
| if (p_bcb->p_pending_data) |
| { |
| memcpy ((UINT8 *)(p_bcb->p_pending_data + 1), p, rem_len); |
| p_bcb->p_pending_data->len = rem_len; |
| p_bcb->p_pending_data->offset = 0; |
| } |
| } |
| else |
| { |
| while (extension_present && p && rem_len) |
| { |
| ext_type = *p++; |
| extension_present = ext_type >> 7; |
| ext_type &= 0x7F; |
| |
| /* if unknown extension present stop processing */ |
| if (ext_type) |
| break; |
| |
| p = bnep_process_control_packet (p_bcb, p, &rem_len, TRUE); |
| } |
| } |
| GKI_freebuf (p_buf); |
| return; |
| |
| case BNEP_FRAME_COMPRESSED_ETHERNET: |
| BE_STREAM_TO_UINT16 (protocol, p); |
| rem_len -= 2; |
| break; |
| |
| case BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY: |
| p_src_addr = p; |
| p += BD_ADDR_LEN; |
| BE_STREAM_TO_UINT16 (protocol, p); |
| rem_len -= 8; |
| break; |
| |
| case BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY: |
| p_dst_addr = p; |
| p += BD_ADDR_LEN; |
| BE_STREAM_TO_UINT16 (protocol, p); |
| rem_len -= 8; |
| break; |
| } |
| |
| /* Process the header extension if there is one */ |
| while (extension_present && p && rem_len) |
| { |
| ext_type = *p; |
| extension_present = ext_type >> 7; |
| ext_type &= 0x7F; |
| |
| /* if unknown extension present stop processing */ |
| if (ext_type) |
| { |
| BNEP_TRACE_EVENT1 ("Data extension type 0x%x found", ext_type); |
| break; |
| } |
| |
| p++; |
| rem_len--; |
| p = bnep_process_control_packet (p_bcb, p, &rem_len, TRUE); |
| } |
| |
| p_buf->offset += p_buf->len - rem_len; |
| p_buf->len = rem_len; |
| |
| /* Always give the upper layer MAC addresses */ |
| if (!p_src_addr) |
| p_src_addr = (UINT8 *) p_bcb->rem_bda; |
| |
| if (!p_dst_addr) |
| p_dst_addr = (UINT8 *) bnep_cb.my_bda; |
| |
| /* check whether there are any extensions to be forwarded */ |
| if (ext_type) |
| fw_ext_present = TRUE; |
| else |
| fw_ext_present = FALSE; |
| |
| if (bnep_cb.p_data_buf_cb) |
| { |
| (*bnep_cb.p_data_buf_cb)(p_bcb->handle, p_src_addr, p_dst_addr, protocol, p_buf, fw_ext_present); |
| } |
| else if (bnep_cb.p_data_ind_cb) |
| { |
| (*bnep_cb.p_data_ind_cb)(p_bcb->handle, p_src_addr, p_dst_addr, protocol, p, rem_len, fw_ext_present); |
| GKI_freebuf (p_buf); |
| } |
| } |
| |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_process_timeout |
| ** |
| ** Description This function processes a timeout. If it is a startup |
| ** timeout, we check for reading our BD address. If it |
| ** is an L2CAP timeout, we send a disconnect req to L2CAP. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void bnep_process_timeout (TIMER_LIST_ENT *p_tle) |
| { |
| tBNEP_CONN *p_bcb; |
| |
| if (!p_tle->param) |
| { |
| if (!bnep_cb.got_my_bd_addr) |
| { |
| if (BTM_IsDeviceUp()) |
| BTM_ReadLocalDeviceAddr (bnep_read_addr_cb); |
| |
| btu_start_timer (&bnep_cb.bnep_tle, BTU_TTYPE_BNEP, 2); |
| } |
| return; |
| } |
| |
| p_bcb = (tBNEP_CONN *)p_tle->param; |
| |
| BNEP_TRACE_EVENT4 ("BNEP - CCB timeout in state: %d CID: 0x%x flags %x, re_transmit %d", |
| p_bcb->con_state, p_bcb->l2cap_cid, p_bcb->con_flags, p_bcb->re_transmits); |
| |
| if (p_bcb->con_state == BNEP_STATE_CONN_SETUP) |
| { |
| BNEP_TRACE_EVENT2 ("BNEP - CCB timeout in state: %d CID: 0x%x", |
| p_bcb->con_state, p_bcb->l2cap_cid); |
| |
| if (!(p_bcb->con_flags & BNEP_FLAGS_IS_ORIG)) |
| { |
| L2CA_DisconnectReq (p_bcb->l2cap_cid); |
| |
| bnepu_release_bcb (p_bcb); |
| return; |
| } |
| |
| if (p_bcb->re_transmits++ != BNEP_MAX_RETRANSMITS) |
| { |
| bnep_send_conn_req (p_bcb); |
| btu_start_timer (&p_bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_CONN_TIMEOUT); |
| } |
| else |
| { |
| L2CA_DisconnectReq (p_bcb->l2cap_cid); |
| |
| if ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (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; |
| } |
| } |
| else if (p_bcb->con_state != BNEP_STATE_CONNECTED) |
| { |
| BNEP_TRACE_EVENT2 ("BNEP - CCB timeout in state: %d CID: 0x%x", |
| p_bcb->con_state, p_bcb->l2cap_cid); |
| |
| L2CA_DisconnectReq (p_bcb->l2cap_cid); |
| |
| /* Tell the user if he has a callback */ |
| if ((p_bcb->con_flags & BNEP_FLAGS_IS_ORIG) && (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); |
| } |
| #if (defined (BNEP_SUPPORTS_PROT_FILTERS) && BNEP_SUPPORTS_PROT_FILTERS == TRUE) |
| else if (p_bcb->con_flags & BNEP_FLAGS_FILTER_RESP_PEND) |
| { |
| if (p_bcb->re_transmits++ != BNEP_MAX_RETRANSMITS) |
| { |
| bnepu_send_peer_our_filters (p_bcb); |
| btu_start_timer (&p_bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_FILTER_SET_TIMEOUT); |
| } |
| else |
| { |
| L2CA_DisconnectReq (p_bcb->l2cap_cid); |
| |
| /* Tell the user if he has a callback */ |
| if (bnep_cb.p_conn_state_cb) |
| (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SET_FILTER_FAIL, FALSE); |
| |
| bnepu_release_bcb (p_bcb); |
| return; |
| } |
| } |
| #endif |
| #if (defined (BNEP_SUPPORTS_MULTI_FILTERS) && BNEP_SUPPORTS_MULTI_FILTERS == TRUE) |
| else if (p_bcb->con_flags & BNEP_FLAGS_MULTI_RESP_PEND) |
| { |
| if (p_bcb->re_transmits++ != BNEP_MAX_RETRANSMITS) |
| { |
| bnepu_send_peer_our_multi_filters (p_bcb); |
| btu_start_timer (&p_bcb->conn_tle, BTU_TTYPE_BNEP, BNEP_FILTER_SET_TIMEOUT); |
| } |
| else |
| { |
| L2CA_DisconnectReq (p_bcb->l2cap_cid); |
| |
| /* Tell the user if he has a callback */ |
| if (bnep_cb.p_conn_state_cb) |
| (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SET_FILTER_FAIL, FALSE); |
| |
| bnepu_release_bcb (p_bcb); |
| return; |
| } |
| } |
| #endif |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_connected |
| ** |
| ** Description This function is called when a connection is established |
| ** (after config). |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void bnep_connected (tBNEP_CONN *p_bcb) |
| { |
| BOOLEAN is_role_change; |
| |
| if (p_bcb->con_flags & BNEP_FLAGS_CONN_COMPLETED) |
| is_role_change = TRUE; |
| else |
| is_role_change = FALSE; |
| |
| p_bcb->con_state = BNEP_STATE_CONNECTED; |
| p_bcb->con_flags |= BNEP_FLAGS_CONN_COMPLETED; |
| p_bcb->con_flags &= (~BNEP_FLAGS_SETUP_RCVD); |
| |
| /* Ensure timer is stopped */ |
| btu_stop_timer (&p_bcb->conn_tle); |
| p_bcb->re_transmits = 0; |
| |
| /* Tell the upper layer, if he has a callback */ |
| if (bnep_cb.p_conn_state_cb) |
| (*bnep_cb.p_conn_state_cb) (p_bcb->handle, p_bcb->rem_bda, BNEP_SUCCESS, is_role_change); |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function bnep_read_addr_cb |
| ** |
| ** Description This function is called by BTM when the local BD address |
| ** is read. It saves the BD address, and flags it as read. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| static void bnep_read_addr_cb (void *p_bda) |
| { |
| UINT8 *bda = (UINT8 *)p_bda; |
| if (p_bda && |
| (bda[0] | bda[1] | bda[2] | bda[3] | bda[4] | bda[5]) != 0) |
| { |
| /* Save my BD address */ |
| memcpy (bnep_cb.my_bda, p_bda, BD_ADDR_LEN); |
| |
| bnep_cb.got_my_bd_addr = TRUE; |
| } |
| else |
| /* Retry after a couple seconds */ |
| btu_start_timer (&bnep_cb.bnep_tle, BTU_TTYPE_BNEP, 2); |
| } |
| |
