1 /*
2 * Copyright (c) 2020 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 #if !(defined(_CUT_PAKE_) || defined(_CUT_PAKE_SERVER_) || defined(_CUT_EXCHANGE_) || defined(_CUT_EXCHANGE_SERVER_))
17
18 #include "securec.h"
19 #include "log.h"
20 #include "mem_stat.h"
21 #include "jsonutil.h"
22 #include "commonutil.h"
23 #include "base.h"
24 #include "parsedata.h"
25 #include "exchange_auth_info.h"
26 #include "key_agreement_version.h"
27
parse_exchange_response(const char * payload,enum json_object_data_type data_type)28 void *parse_exchange_response(const char *payload, enum json_object_data_type data_type)
29 {
30 exchange_response_data *exchange_response = (exchange_response_data *)MALLOC(sizeof(exchange_response_data));
31 if (exchange_response == NULL) {
32 return NULL;
33 }
34 (void)memset_s(exchange_response, sizeof(*exchange_response), 0, sizeof(*exchange_response));
35 json_handle obj = parse_payload(payload, data_type);
36 if (obj == NULL) {
37 LOGE("Parse Exchange Response parse payload failed");
38 goto error;
39 }
40 /* authData */
41 const char *ex_auth_info = get_json_string(obj, FIELD_EX_AUTH_INFO);
42 if (ex_auth_info == NULL) {
43 LOGE("Parse Exchange Response failed, field is null in exAuthInfo");
44 goto error;
45 }
46 int32_t len_ex_auth_info = strlen(ex_auth_info);
47 if ((len_ex_auth_info / BYTE_TO_HEX_OPER_LENGTH) > HC_AUTH_REQUEST_LEN) {
48 LOGE("Parse Exchange Response failed, field length is not match in exAuthInfo");
49 goto error;
50 }
51 exchange_response->cipher.length = len_ex_auth_info / BYTE_TO_HEX_OPER_LENGTH;
52 exchange_response->cipher.size = exchange_response->cipher.length;
53 exchange_response->cipher.val = (uint8_t *)MALLOC(exchange_response->cipher.size);
54 if (exchange_response->cipher.val == NULL) {
55 LOGE("malloc exchangeResponse cipher failed");
56 goto error;
57 }
58 (void)memset_s(exchange_response->cipher.val, exchange_response->cipher.size, 0, exchange_response->cipher.size);
59 if (hex_string_to_byte(ex_auth_info, len_ex_auth_info, exchange_response->cipher.val) != HC_OK) {
60 goto error;
61 }
62 free_payload(obj, data_type);
63 return (void *)exchange_response;
64 error:
65 free_payload(obj, data_type);
66 free_exchange_response(exchange_response);
67 return NULL;
68 }
69
free_exchange_response(void * obj)70 void free_exchange_response(void *obj)
71 {
72 if (obj != NULL) {
73 exchange_response_data *data = obj;
74 if (data->cipher.val != NULL) {
75 FREE(data->cipher.val);
76 }
77 FREE(data);
78 }
79 }
80
make_exchange_response(void * data)81 char *make_exchange_response(void *data)
82 {
83 exchange_response_data *exchange_response = data;
84 /* authinfo */
85 uint8_t *tmp_data_hex = raw_byte_to_hex_string(exchange_response->cipher.val, exchange_response->cipher.length);
86 if (tmp_data_hex == NULL) {
87 return NULL;
88 }
89 char *ret_str = (char *)MALLOC(RET_STR_LENGTH);
90 if (ret_str == NULL) {
91 FREE(tmp_data_hex);
92 return NULL;
93 }
94 (void)memset_s(ret_str, RET_STR_LENGTH, 0, RET_STR_LENGTH);
95 if (snprintf_s(ret_str, RET_STR_LENGTH, RET_STR_LENGTH - 1, "{\"%s\":%d,\"%s\":{\"%s\":\"%s\"}}", FIELD_MESSAGE,
96 EXCHANGE_RESPONSE, FIELD_PAYLOAD, FIELD_EX_AUTH_INFO, tmp_data_hex) < 0) {
97 LOGE("String generate failed");
98 FREE(ret_str);
99 ret_str = NULL;
100 }
101 FREE(tmp_data_hex);
102 return ret_str;
103 }
104
105 #else /* _CUT_XXX_ */
106
107 #include "parsedata.h"
108 DEFINE_EMPTY_STRUCT_FUNC(exchange_response)
109
110 #endif /* _CUT_XXX_ */
111