Oscar Ariza / nRF51822

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Fork of nRF51822 by Nordic Semiconductor

btle/btle_security.cpp@144:9d73e7f9f2bf, 2015-05-08 (annotated)

Committer:
rgrover1
Date:
Fri May 08 15:33:57 2015 +0100
Revision:
144:9d73e7f9f2bf
Parent:
143:b6fe43a5c18f
Child:
145:9d8fce4b4d5a
Synchronized with git rev 002f61cf

Author: Rohit Grover

ble_initializeSecurity: minor inversion of error checking code.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 134:74079098b3c9 1 /* mbed Microcontroller Library
rgrover1 134:74079098b3c9 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 134:74079098b3c9 3 *
rgrover1 134:74079098b3c9 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 134:74079098b3c9 5 * you may not use this file except in compliance with the License.
rgrover1 134:74079098b3c9 6 * You may obtain a copy of the License at
rgrover1 134:74079098b3c9 7 *
rgrover1 134:74079098b3c9 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 134:74079098b3c9 9 *
rgrover1 134:74079098b3c9 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 134:74079098b3c9 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 134:74079098b3c9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 134:74079098b3c9 13 * See the License for the specific language governing permissions and
rgrover1 134:74079098b3c9 14 * limitations under the License.
rgrover1 134:74079098b3c9 15 */
rgrover1 134:74079098b3c9 16
rgrover1 134:74079098b3c9 17 #include "btle.h"
rgrover1 134:74079098b3c9 18 #include "pstorage.h"
rgrover1 134:74079098b3c9 19 #include "nRF51Gap.h"
rgrover1 134:74079098b3c9 20 #include "device_manager.h"
rgrover1 135:df7e7964a9c3 21 #include "btle_security.h"
rgrover1 134:74079098b3c9 22
rgrover1 136:fb674d7364bf 23 static uint8_t applicationInstance;
rgrover1 134:74079098b3c9 24 static ret_code_t dm_handler(dm_handle_t const *p_handle, dm_event_t const *p_event, ret_code_t event_result);
rgrover1 134:74079098b3c9 25
rgrover1 134:74079098b3c9 26 ble_error_t
rgrover1 134:74079098b3c9 27 btle_initializeSecurity()
rgrover1 134:74079098b3c9 28 {
rgrover1 134:74079098b3c9 29 if (pstorage_init() != NRF_SUCCESS) {
rgrover1 134:74079098b3c9 30 return BLE_ERROR_UNSPECIFIED;
rgrover1 134:74079098b3c9 31 }
rgrover1 134:74079098b3c9 32
rgrover1 134:74079098b3c9 33 dm_init_param_t dm_init_param = {
rgrover1 134:74079098b3c9 34 .clear_persistent_data = false /* Set to true in case the module should clear all persistent data. */
rgrover1 134:74079098b3c9 35 };
rgrover1 134:74079098b3c9 36 if (dm_init(&dm_init_param) != NRF_SUCCESS) {
rgrover1 134:74079098b3c9 37 return BLE_ERROR_UNSPECIFIED;
rgrover1 134:74079098b3c9 38 }
rgrover1 134:74079098b3c9 39
rgrover1 134:74079098b3c9 40 const dm_application_param_t dm_param = {
rgrover1 134:74079098b3c9 41 .evt_handler = dm_handler,
rgrover1 134:74079098b3c9 42 .service_type = DM_PROTOCOL_CNTXT_GATT_CLI_ID,
rgrover1 134:74079098b3c9 43 .sec_param = {
rgrover1 134:74079098b3c9 44 .bond = 1, /**< Perform bonding. */
rgrover1 134:74079098b3c9 45 .mitm = 1, /**< Man In The Middle protection required. */
rgrover1 134:74079098b3c9 46 .io_caps = BLE_GAP_IO_CAPS_NONE, /**< IO capabilities, see @ref BLE_GAP_IO_CAPS. */
rgrover1 134:74079098b3c9 47 .oob = 0, /**< Out Of Band data available. */
rgrover1 134:74079098b3c9 48 .min_key_size = 16, /**< Minimum encryption key size in octets between 7 and 16. If 0 then not applicable in this instance. */
rgrover1 134:74079098b3c9 49 .max_key_size = 16, /**< Maximum encryption key size in octets between min_key_size and 16. */
rgrover1 134:74079098b3c9 50 .kdist_periph = {
rgrover1 134:74079098b3c9 51 .enc = 1, /**< Long Term Key and Master Identification. */
rgrover1 134:74079098b3c9 52 .id = 1, /**< Identity Resolving Key and Identity Address Information. */
rgrover1 134:74079098b3c9 53 .sign = 1, /**< Connection Signature Resolving Key. */
rgrover1 134:74079098b3c9 54 }, /**< Key distribution bitmap: keys that the peripheral device will distribute. */
rgrover1 134:74079098b3c9 55 }
rgrover1 134:74079098b3c9 56 };
rgrover1 134:74079098b3c9 57
rgrover1 134:74079098b3c9 58 ret_code_t rc;
rgrover1 144:9d73e7f9f2bf 59 if ((rc = dm_register(&applicationInstance, &dm_param)) != NRF_SUCCESS) {
rgrover1 144:9d73e7f9f2bf 60 switch (rc) {
rgrover1 144:9d73e7f9f2bf 61 case NRF_ERROR_INVALID_STATE:
rgrover1 144:9d73e7f9f2bf 62 return BLE_ERROR_INVALID_STATE;
rgrover1 144:9d73e7f9f2bf 63 case NRF_ERROR_NO_MEM:
rgrover1 144:9d73e7f9f2bf 64 return BLE_ERROR_NO_MEM;
rgrover1 144:9d73e7f9f2bf 65 default:
rgrover1 144:9d73e7f9f2bf 66 return BLE_ERROR_UNSPECIFIED;
rgrover1 144:9d73e7f9f2bf 67 }
rgrover1 134:74079098b3c9 68 }
rgrover1 134:74079098b3c9 69
rgrover1 144:9d73e7f9f2bf 70 return BLE_ERROR_NONE;
rgrover1 137:9bb49953de6a 71 }
rgrover1 137:9bb49953de6a 72
rgrover1 137:9bb49953de6a 73 ble_error_t
rgrover1 141:3a5282e3f30c 74 btle_purgeAllBondingState(void)
rgrover1 137:9bb49953de6a 75 {
rgrover1 137:9bb49953de6a 76 ret_code_t rc;
rgrover1 138:aafab7b0a8bd 77 if ((rc = dm_device_delete_all(&applicationInstance)) == NRF_SUCCESS) {
rgrover1 138:aafab7b0a8bd 78 return BLE_ERROR_NONE;
rgrover1 138:aafab7b0a8bd 79 }
rgrover1 137:9bb49953de6a 80
rgrover1 138:aafab7b0a8bd 81 switch (rc) {
rgrover1 138:aafab7b0a8bd 82 case NRF_ERROR_INVALID_STATE:
rgrover1 138:aafab7b0a8bd 83 return BLE_ERROR_INVALID_STATE;
rgrover1 138:aafab7b0a8bd 84 case NRF_ERROR_NO_MEM:
rgrover1 138:aafab7b0a8bd 85 return BLE_ERROR_NO_MEM;
rgrover1 138:aafab7b0a8bd 86 default:
rgrover1 138:aafab7b0a8bd 87 return BLE_ERROR_UNSPECIFIED;
rgrover1 138:aafab7b0a8bd 88 }
rgrover1 134:74079098b3c9 89 }
rgrover1 134:74079098b3c9 90
rgrover1 139:750eca573e18 91 ble_error_t
rgrover1 139:750eca573e18 92 btle_getLinkSecurity(Gap::Handle_t connectionHandle, Gap::LinkSecurityStatus_t *securityStatusP)
rgrover1 139:750eca573e18 93 {
rgrover1 142:586e146a3903 94 ret_code_t rc;
rgrover1 139:750eca573e18 95 dm_handle_t dmHandle;
rgrover1 139:750eca573e18 96 if ((rc = dm_handle_get(connectionHandle, &dmHandle)) != NRF_SUCCESS) {
rgrover1 143:b6fe43a5c18f 97 printf("dm_handle_get failed with %u\r\n", rc);
rgrover1 139:750eca573e18 98 if (rc == NRF_ERROR_NOT_FOUND) {
rgrover1 139:750eca573e18 99 return BLE_ERROR_INVALID_PARAM;
rgrover1 139:750eca573e18 100 } else {
rgrover1 139:750eca573e18 101 return BLE_ERROR_UNSPECIFIED;
rgrover1 139:750eca573e18 102 }
rgrover1 139:750eca573e18 103 }
rgrover1 139:750eca573e18 104
rgrover1 139:750eca573e18 105 if ((rc = dm_security_status_req(&dmHandle, reinterpret_cast<dm_security_status_t *>(securityStatusP))) != NRF_SUCCESS) {
rgrover1 143:b6fe43a5c18f 106 printf("security status request failed\r\n");
rgrover1 139:750eca573e18 107 switch (rc) {
rgrover1 139:750eca573e18 108 case NRF_ERROR_INVALID_STATE:
rgrover1 139:750eca573e18 109 return BLE_ERROR_INVALID_STATE;
rgrover1 139:750eca573e18 110 case NRF_ERROR_NO_MEM:
rgrover1 139:750eca573e18 111 return BLE_ERROR_NO_MEM;
rgrover1 139:750eca573e18 112 default:
rgrover1 139:750eca573e18 113 return BLE_ERROR_UNSPECIFIED;
rgrover1 139:750eca573e18 114 }
rgrover1 139:750eca573e18 115 }
rgrover1 139:750eca573e18 116
rgrover1 139:750eca573e18 117 return BLE_ERROR_NONE;
rgrover1 139:750eca573e18 118 }
rgrover1 139:750eca573e18 119
rgrover1 134:74079098b3c9 120 ret_code_t
rgrover1 134:74079098b3c9 121 dm_handler(dm_handle_t const *p_handle, dm_event_t const *p_event, ret_code_t event_result)
rgrover1 134:74079098b3c9 122 {
rgrover1 134:74079098b3c9 123 switch (p_event->event_id) {
rgrover1 134:74079098b3c9 124 case DM_EVT_SECURITY_SETUP: /* started */
rgrover1 134:74079098b3c9 125 nRF51Gap::getInstance().processSecuritySetupStartedEvent(p_event->event_param.p_gap_param->conn_handle);
rgrover1 134:74079098b3c9 126 break;
rgrover1 134:74079098b3c9 127 case DM_EVT_SECURITY_SETUP_COMPLETE:
rgrover1 134:74079098b3c9 128 nRF51Gap::getInstance().processSecuritySetupCompletedEvent(p_event->event_param.p_gap_param->conn_handle);
rgrover1 134:74079098b3c9 129 break;
rgrover1 134:74079098b3c9 130 case DM_EVT_LINK_SECURED:
rgrover1 134:74079098b3c9 131 nRF51Gap::getInstance().processLinkSecuredEvent(p_event->event_param.p_gap_param->conn_handle);
rgrover1 134:74079098b3c9 132 break;
rgrover1 134:74079098b3c9 133 case DM_EVT_DEVICE_CONTEXT_STORED:
rgrover1 134:74079098b3c9 134 nRF51Gap::getInstance().processSecurityContextStoredEvent(p_event->event_param.p_gap_param->conn_handle);
rgrover1 134:74079098b3c9 135 break;
rgrover1 134:74079098b3c9 136 default:
rgrover1 134:74079098b3c9 137 break;
rgrover1 134:74079098b3c9 138 }
rgrover1 134:74079098b3c9 139
rgrover1 134:74079098b3c9 140 return NRF_SUCCESS;
rgrover1 134:74079098b3c9 141 }