hci.c (cf01e8888ddd40b7860e88b8069a674e2ff2ee0e) hci.c (11b03efaa1f10ccd376a2bc59480f38a358b0cb8)
1/*
2 * Copyright (C) 2014 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright

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2570 // PIN CODE REQUEST means the link key request didn't succee -> delete stored link key
2571 if (!hci_stack->link_key_db) break;
2572 hci_event_pin_code_request_get_bd_addr(packet, addr);
2573 hci_stack->link_key_db->delete_link_key(addr);
2574 break;
2575
2576 case HCI_EVENT_IO_CAPABILITY_REQUEST:
2577 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], RECV_IO_CAPABILITIES_REQUEST);
1/*
2 * Copyright (C) 2014 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright

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2570 // PIN CODE REQUEST means the link key request didn't succee -> delete stored link key
2571 if (!hci_stack->link_key_db) break;
2572 hci_event_pin_code_request_get_bd_addr(packet, addr);
2573 hci_stack->link_key_db->delete_link_key(addr);
2574 break;
2575
2576 case HCI_EVENT_IO_CAPABILITY_REQUEST:
2577 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], RECV_IO_CAPABILITIES_REQUEST);
2578 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_IO_CAPABILITIES_REPLY);
2578 log_info("IO Capability Request received, stack bondable %u, io cap %u", hci_stack->bondable, hci_stack->ssp_io_capability);
2579 if (hci_stack->bondable && (hci_stack->ssp_io_capability != SSP_IO_CAPABILITY_UNKNOWN)){
2580 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_IO_CAPABILITIES_REPLY);
2581 } else {
2582 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_IO_CAPABILITIES_NEGATIVE_REPLY);
2583 }
2579 break;
2580
2581#ifdef ENABLE_CLASSIC_PAIRING_OOB
2582 case HCI_EVENT_REMOTE_OOB_DATA_REQUEST:
2583 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SSP_PAIRING_ACTIVE);
2584 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_REMOTE_OOB_DATA_REPLY);
2585 break;
2586#endif

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4209 log_info("denying to pin request");
4210 connectionClearAuthenticationFlags(connection, DENY_PIN_CODE_REQUEST);
4211 hci_send_cmd(&hci_pin_code_request_negative_reply, connection->address);
4212 return true;
4213 }
4214
4215 if (connection->authentication_flags & SEND_IO_CAPABILITIES_REPLY){
4216 connectionClearAuthenticationFlags(connection, SEND_IO_CAPABILITIES_REPLY);
2584 break;
2585
2586#ifdef ENABLE_CLASSIC_PAIRING_OOB
2587 case HCI_EVENT_REMOTE_OOB_DATA_REQUEST:
2588 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SSP_PAIRING_ACTIVE);
2589 hci_add_connection_flags_for_flipped_bd_addr(&packet[2], SEND_REMOTE_OOB_DATA_REPLY);
2590 break;
2591#endif

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4214 log_info("denying to pin request");
4215 connectionClearAuthenticationFlags(connection, DENY_PIN_CODE_REQUEST);
4216 hci_send_cmd(&hci_pin_code_request_negative_reply, connection->address);
4217 return true;
4218 }
4219
4220 if (connection->authentication_flags & SEND_IO_CAPABILITIES_REPLY){
4221 connectionClearAuthenticationFlags(connection, SEND_IO_CAPABILITIES_REPLY);
4217 log_info("IO Capability Request received, stack bondable %u, io cap %u", hci_stack->bondable, hci_stack->ssp_io_capability);
4218 if (hci_stack->bondable && (hci_stack->ssp_io_capability != SSP_IO_CAPABILITY_UNKNOWN)){
4219 // tweak authentication requirements
4220 uint8_t authreq = hci_stack->ssp_authentication_requirement;
4221 if (connection->bonding_flags & BONDING_DEDICATED){
4222 authreq = SSP_IO_AUTHREQ_MITM_PROTECTION_NOT_REQUIRED_DEDICATED_BONDING;
4223 }
4224 if (gap_mitm_protection_required_for_security_level(connection->requested_security_level)){
4225 authreq |= 1;
4226 }
4227 uint8_t have_oob_data = 0;
4222 // tweak authentication requirements
4223 uint8_t authreq = hci_stack->ssp_authentication_requirement;
4224 if (connection->bonding_flags & BONDING_DEDICATED){
4225 authreq = SSP_IO_AUTHREQ_MITM_PROTECTION_NOT_REQUIRED_DEDICATED_BONDING;
4226 }
4227 if (gap_mitm_protection_required_for_security_level(connection->requested_security_level)){
4228 authreq |= 1;
4229 }
4230 uint8_t have_oob_data = 0;
4228#ifdef ENABLE_CLASSIC_PAIRING_OOB
4231#ifdef ENABLE_CLASSIC_PAIRING_OOB
4229 if (connection->classic_oob_c_192 != NULL){
4232 if (connection->classic_oob_c_192 != NULL){
4230 have_oob_data |= 1;
4233 have_oob_data |= 1;
4231 }
4232 if (connection->classic_oob_c_256 != NULL){
4233 have_oob_data |= 2;
4234 }
4235#endif
4236 hci_send_cmd(&hci_io_capability_request_reply, &connection->address, hci_stack->ssp_io_capability, have_oob_data, authreq);
4237 } else {
4238 hci_send_cmd(&hci_io_capability_request_negative_reply, &connection->address, ERROR_CODE_PAIRING_NOT_ALLOWED);
4239 }
4234 }
4235 if (connection->classic_oob_c_256 != NULL){
4236 have_oob_data |= 2;
4237 }
4238#endif
4239 hci_send_cmd(&hci_io_capability_request_reply, &connection->address, hci_stack->ssp_io_capability, have_oob_data, authreq);
4240 return true;
4241 }
4242
4240 return true;
4241 }
4242
4243 if (connection->authentication_flags & SEND_IO_CAPABILITIES_NEGATIVE_REPLY) {
4244 connectionClearAuthenticationFlags(connection, SEND_IO_CAPABILITIES_NEGATIVE_REPLY);
4245 hci_send_cmd(&hci_io_capability_request_negative_reply, &connection->address, ERROR_CODE_PAIRING_NOT_ALLOWED);
4246 return true;
4247 }
4248
4243#ifdef ENABLE_CLASSIC_PAIRING_OOB
4244 if (connection->authentication_flags & SEND_REMOTE_OOB_DATA_REPLY){
4245 connectionClearAuthenticationFlags(connection, SEND_REMOTE_OOB_DATA_REPLY);
4246 const uint8_t zero[16] = { 0 };
4247 const uint8_t * r_192 = zero;
4248 const uint8_t * c_192 = zero;
4249 const uint8_t * r_256 = zero;
4250 const uint8_t * c_256 = zero;

--- 2063 unchanged lines hidden --- 		4249#ifdef ENABLE_CLASSIC_PAIRING_OOB
4250 if (connection->authentication_flags & SEND_REMOTE_OOB_DATA_REPLY){
4251 connectionClearAuthenticationFlags(connection, SEND_REMOTE_OOB_DATA_REPLY);
4252 const uint8_t zero[16] = { 0 };
4253 const uint8_t * r_192 = zero;
4254 const uint8_t * c_192 = zero;
4255 const uint8_t * r_256 = zero;
4256 const uint8_t * c_256 = zero;

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