1 /*
2 * Copyright (C) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "account_version_util.h"
17 #include "common_defs.h"
18 #include "hc_log.h"
19 #include "hc_types.h"
20 #include "iso_auth_task_common.h"
21 #include "pake_defs.h"
22 #include "pake_protocol_dl_common.h"
23 #include "pake_protocol_ec_common.h"
24 #include "pake_v2_auth_task_common.h"
25
26 #define IS_SUPPORT_CURVE_256 true
27 #define IS_SUPPORT_CURVE_25519 false
28
29 DECLARE_HC_VECTOR(AccountVersionInfoVec, void *)
30 IMPLEMENT_HC_VECTOR(AccountVersionInfoVec, void *, 1)
31
32 static AccountVersionInfoVec g_authVersionInfoVec;
33
34 static uint64_t g_authVersionNo = 0;
35
IsAuthPakeV2EcP256Supported(void)36 static bool IsAuthPakeV2EcP256Supported(void)
37 {
38 return IsPakeV2AuthTaskSupported() && (GetPakeEcAlg() == PAKE_ALG_EC) && IS_SUPPORT_CURVE_256;
39 }
40
IsAuthIsoSupported(void)41 static bool IsAuthIsoSupported(void)
42 {
43 return IsIsoAuthTaskSupported();
44 }
45
46 static AccountVersionInfo g_authVersionInfoAll[] = {
47 { AUTH_PAKE_V2_EC_P256, PAKE_V2, PAKE_ALG_EC, CURVE_256, false, IsAuthPakeV2EcP256Supported, CreatePakeV2AuthTask},
48 { AUTH_ISO, ISO, PAKE_ALG_NONE, CURVE_NONE, false, IsAuthIsoSupported, CreateIsoAuthTask }
49 };
50
InitVersionInfos(void)51 void InitVersionInfos(void)
52 {
53 g_authVersionInfoVec = CREATE_HC_VECTOR(AccountVersionInfoVec);
54 uint32_t size = sizeof(g_authVersionInfoAll) / sizeof(AccountVersionInfo);
55 for (uint32_t i = 0; i < size; i++) {
56 if (!g_authVersionInfoAll[i].isTaskSupported()) {
57 continue;
58 }
59 (void)g_authVersionInfoVec.pushBackT(&g_authVersionInfoVec, (void *)(&g_authVersionInfoAll[i]));
60 g_authVersionNo |= g_authVersionInfoAll[i].versionNo;
61 }
62 }
63
DestroyVersionInfos(void)64 void DestroyVersionInfos(void)
65 {
66 DESTROY_HC_VECTOR(AccountVersionInfoVec, &g_authVersionInfoVec);
67 }
68
NegotiateForAuth(int32_t credentialType)69 static const AccountVersionInfo *NegotiateForAuth(int32_t credentialType)
70 {
71 uint64_t versionNo;
72 if (credentialType == SYMMETRIC_CRED) {
73 versionNo = AUTH_ISO;
74 } else if (credentialType == ASYMMETRIC_CRED) {
75 versionNo = AUTH_PAKE_V2_EC_P256;
76 } else {
77 LOGE("Invalid credential type for auth: %d.", credentialType);
78 return NULL;
79 }
80 uint32_t index;
81 void **ptr = NULL;
82 FOR_EACH_HC_VECTOR(g_authVersionInfoVec, index, ptr) {
83 AccountVersionInfo *temp = (AccountVersionInfo *)(*ptr);
84 if ((temp->versionNo & versionNo) == versionNo) {
85 return temp;
86 }
87 }
88 LOGE("Version is not matched, failed to negotiate for account auth.");
89 return NULL;
90 }
91
GetNegotiatedVersionInfo(int32_t operationCode,int32_t credentialType)92 const AccountVersionInfo *GetNegotiatedVersionInfo(int32_t operationCode, int32_t credentialType)
93 {
94 // Now, only support auth negotiate.
95 if (operationCode != AUTHENTICATE) {
96 LOGE("operationCode is not auth, not supported.");
97 return NULL;
98 }
99 return NegotiateForAuth(credentialType);
100 }
101
GetSupportedVersionNo(int32_t operationCode)102 uint64_t GetSupportedVersionNo(int32_t operationCode)
103 {
104 (void)operationCode; // Now, only support auth negotiate.
105 return g_authVersionNo;
106 }
107