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dm_priv.h
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1 /*************************************************************************************************/
2 /*!
3  * \file
4  *
5  * \brief DM privacy module.
6  *
7  * Copyright (c) 2011-2018 Arm Ltd. All Rights Reserved.
8  *
9  * Copyright (c) 2019 Packetcraft, Inc.
10  *
11  * Licensed under the Apache License, Version 2.0 (the "License");
12  * you may not use this file except in compliance with the License.
13  * You may obtain a copy of the License at
14  *
15  * http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing, software
18  * distributed under the License is distributed on an "AS IS" BASIS,
19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20  * See the License for the specific language governing permissions and
21  * limitations under the License.
22  */
23 /*************************************************************************************************/
24 #ifndef DM_PRIV_H
25 #define DM_PRIV_H
26 
27 #include "util/bda.h"
28 #include "wsf_os.h"
29 #include "wsf_timer.h"
30 #include "sec_api.h"
31 #include "dm_main.h"
32 #include "smp_defs.h"
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 /**************************************************************************************************
39  Macros
40 **************************************************************************************************/
41 
42 /* DM privacy event handler messages */
43 enum
44 {
45  DM_PRIV_MSG_API_RESOLVE_ADDR = DM_MSG_START(DM_ID_PRIV),
46  DM_PRIV_MSG_API_ADD_DEV_TO_RES_LIST,
47  DM_PRIV_MSG_API_REM_DEV_FROM_RES_LIST,
48  DM_PRIV_MSG_API_CLEAR_RES_LIST,
49  DM_PRIV_MSG_API_SET_ADDR_RES_ENABLE,
50  DM_PRIV_MSG_API_SET_PRIVACY_MODE,
51  DM_PRIV_MSG_API_GEN_ADDR
52 };
53 
54 /* DM privacy AES event handler messages */
55 enum
56 {
57  DM_PRIV_MSG_RESOLVE_AES_CMPL = DM_MSG_START(DM_ID_PRIV_AES),
58  DM_PRIV_MSG_GEN_ADDR_AES_CMPL
59 };
60 
61 /**************************************************************************************************
62  Data Types
63 **************************************************************************************************/
64 
65 /* Data structure for DM_PRIV_MSG_API_RESOLVE_ADDR */
66 typedef struct
67 {
68  wsfMsgHdr_t hdr;
69  uint8_t irk[SMP_KEY_LEN];
70  bdAddr_t addr;
71 } dmPrivApiResolveAddr_t;
72 
73 /* Data structure for DM_PRIV_MSG_API_GEN_ADDR */
74 typedef struct
75 {
76  wsfMsgHdr_t hdr;
77  uint8_t irk[SMP_KEY_LEN];
78 } dmPrivApiGenAddr_t;
79 
80 /* Data structure for DM_PRIV_MSG_API_ADD_DEV_TO_RES_LIST */
81 typedef struct
82 {
83  wsfMsgHdr_t hdr;
84  uint8_t addrType;
85  bdAddr_t peerAddr;
86  uint8_t peerIrk[SMP_KEY_LEN];
87  uint8_t localIrk[SMP_KEY_LEN];
88  bool_t enableLlPriv;
89 } dmPrivApiAddDevToResList_t;
90 
91 /* Data structure for DM_PRIV_MSG_API_REM_DEV_FROM_RES_LIST */
92 typedef struct
93 {
94  wsfMsgHdr_t hdr;
95  uint8_t addrType;
96  bdAddr_t peerAddr;
97 } dmPrivApiRemDevFromResList_t;
98 
99 /* Data structure for DM_PRIV_MSG_API_SET_ADDR_RES_ENABLE */
100 typedef struct
101 {
102  wsfMsgHdr_t hdr;
103  bool_t enable;
104 } dmPrivApiSetAddrResEnable_t;
105 
106 /* Data structure for DM_PRIV_MSG_API_SET_PRIVACY_MODE */
107 typedef struct
108 {
109  wsfMsgHdr_t hdr;
110  uint8_t addrType;
111  bdAddr_t peerAddr;
112  uint8_t mode;
113 } dmPrivApiSetPrivacyMode_t;
114 
115 /* Union of all privacy messages */
116 typedef union
117 {
118  wsfMsgHdr_t hdr;
119  dmPrivApiResolveAddr_t apiResolveAddr;
120  dmPrivApiAddDevToResList_t apiAddDevToResList;
121  dmPrivApiRemDevFromResList_t apiRemDevFromResList;
122  dmPrivApiSetAddrResEnable_t apiSetAddrResEnable;
123  dmPrivApiSetPrivacyMode_t apiSetPrivacyMode;
124  dmPrivApiGenAddr_t apiGenerateAddr;
125  dmPrivGenAddrIndEvt_t genAddrInd;
126  secAes_t aes;
127 } dmPrivMsg_t;
128 
129 /* Action function */
130 typedef void (*dmPrivAct_t)(dmPrivMsg_t *pMsg);
131 
132 /* Control block for privacy module */
133 typedef struct
134 {
135  uint8_t hash[DM_PRIV_HASH_LEN]; /* Hash part of resolvable address */
136  bool_t inProgress; /* Address resolution in progress */
137  uint16_t addDevToResListParam; /* 'Add device to resolving list' callback param */
138  uint16_t remDevFromResListParam; /* 'Remove device from resolving list' callback param */
139  bool_t enableLlPriv; /* 'Add device to resolving list' input param */
140  bool_t addrResEnable; /* 'Set address resolution enable' input param */
141  uint8_t genAddrBuf[HCI_ENCRYPT_DATA_LEN]; /* Random value buffer for generating an RPA */
142 } dmPrivCb_t;
143 
144 /**************************************************************************************************
145  Function declarations
146 **************************************************************************************************/
147 
148 /* Privacy component inteface */
149 void dmPrivMsgHandler(wsfMsgHdr_t *pMsg);
150 void dmPrivHciHandler(hciEvt_t *pEvent);
151 void dmPrivReset(void);
152 
153 /* Privacy action functions */
154 void dmPrivActResolveAddr(dmPrivMsg_t *pMsg);
155 void dmPrivActAddDevToResList(dmPrivMsg_t *pMsg);
156 void dmPrivActRemDevFromResList(dmPrivMsg_t *pMsg);
157 void dmPrivActSetAddrResEnable(dmPrivMsg_t *pMsg);
158 void dmPrivActClearResList(dmPrivMsg_t *pMsg);
159 void dmPrivActSetPrivacyMode(dmPrivMsg_t *pMsg);
160 void dmPrivActGenAddr(dmPrivMsg_t *pMsg);
161 
162 /* Privacy ASE component inteface */
163 void dmPrivAesMsgHandler(wsfMsgHdr_t *pMsg);
164 
165 /* Privacy ASE action functions */
166 void dmPrivAesActResAddrAesCmpl(dmPrivMsg_t *pMsg);
167 void dmPrivAesActGenAddrAesCmpl(dmPrivMsg_t *pMsg);
168 
169 #ifdef __cplusplus
170 };
171 #endif
172 
173 #endif /* DM_PRIV_H */
HCI_ENCRYPT_DATA_LEN
#define HCI_ENCRYPT_DATA_LEN
Definition: hci_defs.h:1446
dmPrivApiSetAddrResEnable_t
Definition: dm_priv.h:100
dmPrivGenAddrIndEvt_t
Data type for DM_PRIV_GENERATE_ADDR_IND.
Definition: dm_api.h:693
secAes_t
AES Security callback parameters structure.
Definition: sec_api.h:70
dmPrivMsg_t
Definition: dm_priv.h:116
dmPrivApiAddDevToResList_t
Definition: dm_priv.h:81
SMP_KEY_LEN
#define SMP_KEY_LEN
Key length.
Definition: smp_defs.h:183
dmPrivApiSetPrivacyMode_t
Definition: dm_priv.h:107
bdAddr_t
uint8_t bdAddr_t[6]
BD address data type.
Definition: bda.h:67
smp_defs.h
Security manager constants and definitions from the Bluetooth specification.
bda.h
Bluetooth device address utilities.
dmPrivApiGenAddr_t
Definition: dm_priv.h:74
hciEvt_t
Union of all event types.
Definition: hci_api.h:931
dm_main.h
DM main module.
dmPrivCb_t
Definition: dm_priv.h:133
wsf_timer.h
Timer service.
dmPrivApiRemDevFromResList_t
Definition: dm_priv.h:92
dmPrivApiResolveAddr_t
Definition: dm_priv.h:66
wsf_os.h
Software foundation OS API.
wsfMsgHdr_t
Common message structure passed to event handler.
Definition: wsf_os.h:106
sec_api.h
AES and random number security service API.
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