1/******************************************************************************
2 *
3 *  Copyright (C) 2001-2012 Broadcom Corporation
4 *
5 *  Licensed under the Apache License, Version 2.0 (the "License");
6 *  you may not use this file except in compliance with the License.
7 *  You may obtain a copy of the License at:
8 *
9 *  http://www.apache.org/licenses/LICENSE-2.0
10 *
11 *  Unless required by applicable law or agreed to in writing, software
12 *  distributed under the License is distributed on an "AS IS" BASIS,
13 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 *  See the License for the specific language governing permissions and
15 *  limitations under the License.
16 *
17 ******************************************************************************/
18
19/******************************************************************************
20 *
21 *  This file contains internally used BNEP definitions
22 *
23 ******************************************************************************/
24
25#ifndef BNEP_INT_H
26#define BNEP_INT_H
27
28#include "bnep_api.h"
29#include "bt_common.h"
30#include "bt_target.h"
31#include "btm_int.h"
32#include "btu.h"
33
34/* BNEP frame types
35*/
36#define BNEP_FRAME_GENERAL_ETHERNET 0x00
37#define BNEP_FRAME_CONTROL 0x01
38#define BNEP_FRAME_COMPRESSED_ETHERNET 0x02
39#define BNEP_FRAME_COMPRESSED_ETHERNET_SRC_ONLY 0x03
40#define BNEP_FRAME_COMPRESSED_ETHERNET_DEST_ONLY 0x04
41
42/* BNEP filter control message types
43*/
44#define BNEP_CONTROL_COMMAND_NOT_UNDERSTOOD 0x00
45#define BNEP_SETUP_CONNECTION_REQUEST_MSG 0x01
46#define BNEP_SETUP_CONNECTION_RESPONSE_MSG 0x02
47#define BNEP_FILTER_NET_TYPE_SET_MSG 0x03
48#define BNEP_FILTER_NET_TYPE_RESPONSE_MSG 0x04
49#define BNEP_FILTER_MULTI_ADDR_SET_MSG 0x05
50#define BNEP_FILTER_MULTI_ADDR_RESPONSE_MSG 0x06
51
52/* BNEP header extension types
53*/
54#define BNEP_EXTENSION_FILTER_CONTROL 0x00
55
56/* BNEP Setup Connection response codes
57*/
58#define BNEP_SETUP_CONN_OK 0x0000
59#define BNEP_SETUP_INVALID_DEST_UUID 0x0001
60#define BNEP_SETUP_INVALID_SRC_UUID 0x0002
61#define BNEP_SETUP_INVALID_UUID_SIZE 0x0003
62#define BNEP_SETUP_CONN_NOT_ALLOWED 0x0004
63
64/* BNEP filter control response codes
65*/
66#define BNEP_FILTER_CRL_OK 0x0000
67#define BNEP_FILTER_CRL_UNSUPPORTED 0x0001
68#define BNEP_FILTER_CRL_BAD_RANGE 0x0002
69#define BNEP_FILTER_CRL_MAX_REACHED 0x0003
70#define BNEP_FILTER_CRL_SECURITY_ERR 0x0004
71
72/* 802.1p protocol packet will have actual protocol field in side the payload */
73#define BNEP_802_1_P_PROTOCOL 0x8100
74
75/* Timeout definitions.  */
76/* Connection related timeout */
77#define BNEP_CONN_TIMEOUT_MS (20 * 1000)
78/* host response timeout */
79#define BNEP_HOST_TIMEOUT_MS (200 * 1000)
80#define BNEP_FILTER_SET_TIMEOUT_MS (10 * 1000)
81
82/* Define the Out-Flow default values. */
83#define BNEP_OFLOW_QOS_FLAG 0
84#define BNEP_OFLOW_SERV_TYPE 0
85#define BNEP_OFLOW_TOKEN_RATE 0
86#define BNEP_OFLOW_TOKEN_BUCKET_SIZE 0
87#define BNEP_OFLOW_PEAK_BANDWIDTH 0
88#define BNEP_OFLOW_LATENCY 0
89#define BNEP_OFLOW_DELAY_VARIATION 0
90
91/* Define the In-Flow default values. */
92#define BNEP_IFLOW_QOS_FLAG 0
93#define BNEP_IFLOW_SERV_TYPE 0
94#define BNEP_IFLOW_TOKEN_RATE 0
95#define BNEP_IFLOW_TOKEN_BUCKET_SIZE 0
96#define BNEP_IFLOW_PEAK_BANDWIDTH 0
97#define BNEP_IFLOW_LATENCY 0
98#define BNEP_IFLOW_DELAY_VARIATION 0
99
100#define BNEP_FLUSH_TO 0xFFFF
101
102#define BNEP_MAX_RETRANSMITS 3
103
104/* Define the BNEP Connection Control Block
105*/
106typedef struct {
107#define BNEP_STATE_IDLE 0
108#define BNEP_STATE_CONN_START 1
109#define BNEP_STATE_CFG_SETUP 2
110#define BNEP_STATE_CONN_SETUP 3
111#define BNEP_STATE_SEC_CHECKING 4
112#define BNEP_STATE_SETUP_RCVD 5
113#define BNEP_STATE_CONNECTED 6
114  uint8_t con_state;
115
116#define BNEP_FLAGS_IS_ORIG 0x01
117#define BNEP_FLAGS_HIS_CFG_DONE 0x02
118#define BNEP_FLAGS_MY_CFG_DONE 0x04
119#define BNEP_FLAGS_L2CAP_CONGESTED 0x08
120#define BNEP_FLAGS_FILTER_RESP_PEND 0x10
121#define BNEP_FLAGS_MULTI_RESP_PEND 0x20
122#define BNEP_FLAGS_SETUP_RCVD 0x40
123#define BNEP_FLAGS_CONN_COMPLETED 0x80
124  uint8_t con_flags;
125  BT_HDR* p_pending_data;
126
127  uint16_t l2cap_cid;
128  BD_ADDR rem_bda;
129  uint16_t rem_mtu_size;
130  alarm_t* conn_timer;
131  fixed_queue_t* xmit_q;
132
133  uint16_t sent_num_filters;
134  uint16_t sent_prot_filter_start[BNEP_MAX_PROT_FILTERS];
135  uint16_t sent_prot_filter_end[BNEP_MAX_PROT_FILTERS];
136
137  uint16_t sent_mcast_filters;
138  BD_ADDR sent_mcast_filter_start[BNEP_MAX_MULTI_FILTERS];
139  BD_ADDR sent_mcast_filter_end[BNEP_MAX_MULTI_FILTERS];
140
141  uint16_t rcvd_num_filters;
142  uint16_t rcvd_prot_filter_start[BNEP_MAX_PROT_FILTERS];
143  uint16_t rcvd_prot_filter_end[BNEP_MAX_PROT_FILTERS];
144
145  uint16_t rcvd_mcast_filters;
146  BD_ADDR rcvd_mcast_filter_start[BNEP_MAX_MULTI_FILTERS];
147  BD_ADDR rcvd_mcast_filter_end[BNEP_MAX_MULTI_FILTERS];
148
149  uint16_t bad_pkts_rcvd;
150  uint8_t re_transmits;
151  uint16_t handle;
152  tBT_UUID prv_src_uuid;
153  tBT_UUID prv_dst_uuid;
154  tBT_UUID src_uuid;
155  tBT_UUID dst_uuid;
156
157} tBNEP_CONN;
158
159/*  The main BNEP control block
160*/
161typedef struct {
162  tL2CAP_CFG_INFO l2cap_my_cfg; /* My L2CAP config     */
163  tBNEP_CONN bcb[BNEP_MAX_CONNECTIONS];
164
165  tBNEP_CONNECT_IND_CB* p_conn_ind_cb;
166  tBNEP_CONN_STATE_CB* p_conn_state_cb;
167  tBNEP_DATA_IND_CB* p_data_ind_cb;
168  tBNEP_DATA_BUF_CB* p_data_buf_cb;
169  tBNEP_FILTER_IND_CB* p_filter_ind_cb;
170  tBNEP_MFILTER_IND_CB* p_mfilter_ind_cb;
171  tBNEP_TX_DATA_FLOW_CB* p_tx_data_flow_cb;
172
173  tL2CAP_APPL_INFO reg_info;
174
175  bool profile_registered; /* true when we got our BD addr */
176  uint8_t trace_level;
177
178} tBNEP_CB;
179
180/* Global BNEP data
181*/
182extern tBNEP_CB bnep_cb;
183
184/* Functions provided by bnep_main.cc
185*/
186extern tBNEP_RESULT bnep_register_with_l2cap(void);
187extern void bnep_disconnect(tBNEP_CONN* p_bcb, uint16_t reason);
188extern tBNEP_CONN* bnep_conn_originate(uint8_t* p_bd_addr);
189extern void bnep_conn_timer_timeout(void* data);
190extern void bnep_connected(tBNEP_CONN* p_bcb);
191
192/* Functions provided by bnep_utils.cc
193*/
194extern tBNEP_CONN* bnepu_find_bcb_by_cid(uint16_t cid);
195extern tBNEP_CONN* bnepu_find_bcb_by_bd_addr(uint8_t* p_bda);
196extern tBNEP_CONN* bnepu_allocate_bcb(BD_ADDR p_rem_bda);
197extern void bnepu_release_bcb(tBNEP_CONN* p_bcb);
198extern void bnepu_send_peer_our_filters(tBNEP_CONN* p_bcb);
199extern void bnepu_send_peer_our_multi_filters(tBNEP_CONN* p_bcb);
200extern bool bnepu_does_dest_support_prot(tBNEP_CONN* p_bcb, uint16_t protocol);
201extern void bnepu_build_bnep_hdr(tBNEP_CONN* p_bcb, BT_HDR* p_buf,
202                                 uint16_t protocol, uint8_t* p_src_addr,
203                                 uint8_t* p_dest_addr, bool ext_bit);
204extern void test_bnepu_build_bnep_hdr(tBNEP_CONN* p_bcb, BT_HDR* p_buf,
205                                      uint16_t protocol, uint8_t* p_src_addr,
206                                      uint8_t* p_dest_addr, uint8_t type);
207
208extern tBNEP_CONN* bnepu_get_route_to_dest(uint8_t* p_bda);
209extern void bnepu_check_send_packet(tBNEP_CONN* p_bcb, BT_HDR* p_buf);
210extern void bnep_send_command_not_understood(tBNEP_CONN* p_bcb,
211                                             uint8_t cmd_code);
212extern void bnepu_process_peer_filter_set(tBNEP_CONN* p_bcb, uint8_t* p_filters,
213                                          uint16_t len);
214extern void bnepu_process_peer_filter_rsp(tBNEP_CONN* p_bcb, uint8_t* p_data);
215extern void bnepu_process_multicast_filter_rsp(tBNEP_CONN* p_bcb,
216                                               uint8_t* p_data);
217extern void bnep_send_conn_req(tBNEP_CONN* p_bcb);
218extern void bnep_send_conn_responce(tBNEP_CONN* p_bcb, uint16_t resp_code);
219extern void bnep_process_setup_conn_req(tBNEP_CONN* p_bcb, uint8_t* p_setup,
220                                        uint8_t len);
221extern void bnep_process_setup_conn_responce(tBNEP_CONN* p_bcb,
222                                             uint8_t* p_setup);
223extern uint8_t* bnep_process_control_packet(tBNEP_CONN* p_bcb, uint8_t* p,
224                                            uint16_t* len, bool is_ext);
225extern void bnep_sec_check_complete(BD_ADDR bd_addr, tBT_TRANSPORT trasnport,
226                                    void* p_ref_data, uint8_t result);
227extern tBNEP_RESULT bnep_is_packet_allowed(tBNEP_CONN* p_bcb,
228                                           BD_ADDR p_dest_addr,
229                                           uint16_t protocol,
230                                           bool fw_ext_present,
231                                           uint8_t* p_data);
232extern uint32_t bnep_get_uuid32(tBT_UUID* src_uuid);
233
234#endif
235