1 #include <stdint.h> 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <string.h> 5 6 #include "hci.h" 7 #include "gap.h" 8 #include "hci_dump.h" 9 #include "l2cap.h" 10 11 #include "ble/att_db.h" 12 #include "ble/att_dispatch.h" 13 #include "ble/sm.h" 14 15 #include "btstack_debug.h" 16 17 static btstack_packet_handler_t att_server_packet_handler; 18 static void (*registered_hci_event_handler) (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size) = NULL; 19 20 static btstack_linked_list_t connections; 21 static uint16_t max_mtu = 23; 22 static uint8_t l2cap_stack_buffer[HCI_INCOMING_PRE_BUFFER_SIZE + 8 + ATT_DEFAULT_MTU]; // pre buffer + HCI Header + L2CAP header 23 static uint16_t gatt_client_handle = 0x40; 24 static hci_connection_t hci_connection; 25 26 uint16_t get_gatt_client_handle(void){ 27 return gatt_client_handle; 28 } 29 30 void mock_simulate_command_complete(const hci_cmd_t *cmd){ 31 uint8_t packet[] = {HCI_EVENT_COMMAND_COMPLETE, 4, 1, (uint8_t) (cmd->opcode & 0xff), (uint8_t) (cmd->opcode >> 8), 0}; 32 registered_hci_event_handler(HCI_EVENT_PACKET, 0, (uint8_t *)&packet, sizeof(packet)); 33 } 34 35 void mock_simulate_hci_state_working(void){ 36 uint8_t packet[3] = {BTSTACK_EVENT_STATE, 0, HCI_STATE_WORKING}; 37 registered_hci_event_handler(HCI_EVENT_PACKET, 0, (uint8_t *)&packet, 3); 38 } 39 40 void mock_simulate_connected(void){ 41 uint8_t packet[] = {0x3E, 0x13, 0x01, 0x00, 0x40, 0x00, 0x00, 0x00, 0x9B, 0x77, 0xD1, 0xF7, 0xB1, 0x34, 0x50, 0x00, 0x00, 0x00, 0xD0, 0x07, 0x05}; 42 registered_hci_event_handler(HCI_EVENT_PACKET, 0, (uint8_t *)&packet, sizeof(packet)); 43 } 44 45 void mock_simulate_scan_response(void){ 46 uint8_t packet[] = {0xE2, 0x13, 0xE2, 0x01, 0x34, 0xB1, 0xF7, 0xD1, 0x77, 0x9B, 0xCC, 0x09, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08}; 47 registered_hci_event_handler(HCI_EVENT_PACKET, 0, (uint8_t *)&packet, sizeof(packet)); 48 } 49 50 void gap_start_scan(void){ 51 } 52 void gap_stop_scan(void){ 53 } 54 uint8_t gap_connect(const bd_addr_t addr, bd_addr_type_t addr_type){ 55 return 0; 56 } 57 void gap_set_scan_parameters(uint8_t scan_type, uint16_t scan_interval, uint16_t scan_window){ 58 } 59 60 int gap_reconnect_security_setup_active(hci_con_handle_t con_handle){ 61 UNUSED(con_handle); 62 return 0; 63 } 64 65 static void hci_setup_connection(uint16_t con_handle, bd_addr_type_t type){ 66 hci_connection.att_connection.mtu = 23; 67 hci_connection.att_connection.con_handle = con_handle; 68 hci_connection.att_connection.max_mtu = 23; 69 hci_connection.att_connection.encryption_key_size = 0; 70 hci_connection.att_connection.authenticated = 0; 71 hci_connection.att_connection.authorized = 0; 72 73 hci_connection.att_server.ir_le_device_db_index = 0; 74 75 hci_connection.con_handle = con_handle; 76 hci_connection.address_type = type; 77 78 if (btstack_linked_list_empty(&connections)){ 79 btstack_linked_list_add(&connections, (btstack_linked_item_t *)&hci_connection); 80 } 81 } 82 83 void hci_setup_le_connection(uint16_t con_handle){ 84 hci_setup_connection(con_handle, BD_ADDR_TYPE_LE_PUBLIC); 85 } 86 87 void hci_setup_classic_connection(uint16_t con_handle){ 88 hci_setup_connection(con_handle, BD_ADDR_TYPE_ACL); 89 } 90 91 92 void mock_l2cap_set_max_mtu(uint16_t mtu){ 93 max_mtu = mtu; 94 } 95 96 void hci_deinit(void){ 97 hci_connection.att_connection.mtu = 0; 98 hci_connection.att_connection.con_handle = HCI_CON_HANDLE_INVALID; 99 hci_connection.att_connection.max_mtu = 0; 100 hci_connection.att_connection.encryption_key_size = 0; 101 hci_connection.att_connection.authenticated = 0; 102 hci_connection.att_connection.authorized = 0; 103 hci_connection.att_server.ir_le_device_db_index = 0; 104 hci_connection.att_server.notification_requests = NULL; 105 hci_connection.att_server.indication_requests = NULL; 106 connections = NULL; 107 } 108 109 void hci_add_event_handler(btstack_packet_callback_registration_t * callback_handler){ 110 registered_hci_event_handler = callback_handler->callback; 111 } 112 113 bool hci_can_send_command_packet_now(void){ 114 return true; 115 } 116 117 HCI_STATE hci_get_state(void){ 118 return HCI_STATE_WORKING; 119 } 120 121 uint8_t hci_send_cmd(const hci_cmd_t *cmd, ...){ 122 btstack_assert(false); 123 return ERROR_CODE_SUCCESS; 124 } 125 126 void hci_halting_defer(void){ 127 } 128 129 bool l2cap_can_send_connectionless_packet_now(void){ 130 return 1; 131 } 132 133 void l2cap_add_event_handler(btstack_packet_callback_registration_t * callback_handler){ 134 UNUSED(callback_handler); 135 } 136 137 uint8_t *l2cap_get_outgoing_buffer(void){ 138 // printf("l2cap_get_outgoing_buffer\n"); 139 return (uint8_t *)&l2cap_stack_buffer; // 8 bytes 140 } 141 142 uint16_t l2cap_max_mtu(void){ 143 // printf("l2cap_max_mtu\n"); 144 return max_mtu; 145 } 146 147 uint16_t l2cap_max_le_mtu(void){ 148 return max_mtu; 149 } 150 151 void l2cap_init(void){} 152 153 bool l2cap_reserve_packet_buffer(void){ 154 return true; 155 } 156 157 void l2cap_release_packet_buffer(void){ 158 } 159 160 static uint8_t l2cap_can_send_fixed_channel_packet_now_status = 1; 161 162 void l2cap_can_send_fixed_channel_packet_now_set_status(uint8_t status){ 163 l2cap_can_send_fixed_channel_packet_now_status = status; 164 } 165 166 bool l2cap_can_send_fixed_channel_packet_now(uint16_t handle, uint16_t channel_id){ 167 return l2cap_can_send_fixed_channel_packet_now_status; 168 } 169 170 void l2cap_request_can_send_fix_channel_now_event(uint16_t handle, uint16_t channel_id){ 171 uint8_t event[] = { L2CAP_EVENT_CAN_SEND_NOW, 2, 1, 0}; 172 att_server_packet_handler(HCI_EVENT_PACKET, 0, (uint8_t*)event, sizeof(event)); 173 } 174 175 uint8_t l2cap_send_prepared_connectionless(uint16_t handle, uint16_t cid, uint16_t len){ 176 att_connection_t att_connection; 177 hci_setup_le_connection(handle); 178 uint8_t response[max_mtu]; 179 uint16_t response_len = att_handle_request(&att_connection, l2cap_get_outgoing_buffer(), len, &response[0]); 180 if (response_len){ 181 att_server_packet_handler(ATT_DATA_PACKET, gatt_client_handle, &response[0], response_len); 182 } 183 return ERROR_CODE_SUCCESS; 184 } 185 186 static int cmac_ready = 1; 187 void set_cmac_ready(int ready){ 188 cmac_ready = ready; 189 } 190 191 void sm_add_event_handler(btstack_packet_callback_registration_t * callback_handler){ 192 } 193 194 int sm_cmac_ready(void){ 195 return cmac_ready; 196 } 197 198 void sm_cmac_signed_write_start(const sm_key_t key, uint8_t opcode, uint16_t attribute_handle, uint16_t message_len, const uint8_t * message, uint32_t sign_counter, void (*done_callback)(uint8_t * hash)){ 199 // sm_notify_client(SM_EVENT_IDENTITY_RESOLVING_SUCCEEDED, sm_central_device_addr_type, sm_central_device_address, 0, sm_central_device_matched); 200 } 201 202 int sm_le_device_index(uint16_t handle ){ 203 return -1; 204 } 205 206 irk_lookup_state_t sm_identity_resolving_state(hci_con_handle_t con_handle){ 207 return IRK_LOOKUP_SUCCEEDED; 208 } 209 210 void sm_request_pairing(hci_con_handle_t con_handle){ 211 } 212 213 void btstack_run_loop_set_timer(btstack_timer_source_t *a, uint32_t timeout_in_ms){ 214 } 215 216 // Set callback that will be executed when timer expires. 217 void btstack_run_loop_set_timer_handler(btstack_timer_source_t *ts, void (*process)(btstack_timer_source_t *_ts)){ 218 } 219 220 // Add/Remove timer source. 221 void btstack_run_loop_add_timer(btstack_timer_source_t *timer){ 222 } 223 224 int btstack_run_loop_remove_timer(btstack_timer_source_t *timer){ 225 return 1; 226 } 227 228 void * btstack_run_loop_get_timer_context(btstack_timer_source_t *ts){ 229 return ts->context; 230 } 231 232 // todo: 233 hci_connection_t * hci_connection_for_bd_addr_and_type(const bd_addr_t addr, bd_addr_type_t addr_type){ 234 printf("hci_connection_for_bd_addr_and_type not implemented in mock backend\n"); 235 return NULL; 236 } 237 hci_connection_t * hci_connection_for_handle(hci_con_handle_t con_handle){ 238 if (hci_connection.con_handle != con_handle){ 239 return NULL; 240 } 241 return &hci_connection; 242 } 243 244 void hci_connections_get_iterator(btstack_linked_list_iterator_t *it){ 245 // printf("hci_connections_get_iterator not implemented in mock backend\n"); 246 btstack_linked_list_iterator_init(it, &connections); 247 } 248 249 250 void l2cap_run(void){ 251 } 252 253 void l2cap_register_packet_handler(void (*handler)(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size)){ 254 } 255 256 bool gap_authenticated(hci_con_handle_t con_handle){ 257 return false; 258 } 259 authorization_state_t gap_authorization_state(hci_con_handle_t con_handle){ 260 return AUTHORIZATION_UNKNOWN; 261 } 262 uint8_t gap_encryption_key_size(hci_con_handle_t con_handle){ 263 return 0; 264 } 265 bool gap_secure_connection(hci_con_handle_t con_handle){ 266 return false; 267 } 268 gap_connection_type_t gap_get_connection_type(hci_con_handle_t con_handle){ 269 if (hci_connection.con_handle != con_handle){ 270 return GAP_CONNECTION_INVALID; 271 } 272 switch (hci_connection.address_type){ 273 case BD_ADDR_TYPE_LE_PUBLIC: 274 case BD_ADDR_TYPE_LE_RANDOM: 275 return GAP_CONNECTION_LE; 276 case BD_ADDR_TYPE_SCO: 277 return GAP_CONNECTION_SCO; 278 case BD_ADDR_TYPE_ACL: 279 return GAP_CONNECTION_ACL; 280 default: 281 return GAP_CONNECTION_INVALID; 282 } 283 } 284 285 int gap_request_connection_parameter_update(hci_con_handle_t con_handle, uint16_t conn_interval_min, 286 uint16_t conn_interval_max, uint16_t conn_latency, uint16_t supervision_timeout){ 287 return 0; 288 } 289 290 void mock_call_att_server_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 291 (*att_server_packet_handler)(packet_type, channel, packet, size); 292 } 293 294 void mock_call_att_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 295 (*registered_hci_event_handler)(packet_type, channel, packet, size); 296 } 297 298 void att_dispatch_register_server(btstack_packet_handler_t packet_handler){ 299 att_server_packet_handler = packet_handler; 300 } 301 302 bool att_dispatch_server_can_send_now(hci_con_handle_t con_handle){ 303 UNUSED(con_handle); 304 return l2cap_can_send_fixed_channel_packet_now_status; 305 } 306 307 void att_dispatch_server_mtu_exchanged(hci_con_handle_t con_handle, uint16_t new_mtu){ 308 UNUSED(con_handle); 309 UNUSED(new_mtu); 310 } 311 312 void att_dispatch_server_request_can_send_now_event(hci_con_handle_t con_handle){ 313 if (l2cap_can_send_fixed_channel_packet_now_status){ 314 uint8_t event[] = { L2CAP_EVENT_CAN_SEND_NOW, 2, 1, 0}; 315 att_server_packet_handler(HCI_EVENT_PACKET, 0, (uint8_t*)event, sizeof(event)); 316 } 317 } 318 319