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_))
17
18 #include "securec.h"
19 #include "log.h"
20 #include "mem_stat.h"
21 #include "jsonutil.h"
22 #include "pake_server.h"
23 #include "key_agreement_version.h"
24 #include "parsedata.h"
25
parse_pake_request(const char * payload,enum json_object_data_type data_type)26 void *parse_pake_request(const char *payload, enum json_object_data_type data_type)
27 {
28 struct pake_start_request_data *pake_request =
29 (struct pake_start_request_data *)MALLOC(sizeof(struct pake_start_request_data));
30 if (pake_request == NULL) {
31 return NULL;
32 }
33 (void)memset_s(pake_request, sizeof(*pake_request), 0, sizeof(*pake_request));
34 json_handle obj = parse_payload(payload, data_type);
35 if (obj == NULL) {
36 LOGE("Parse Pake Request parse payload failed");
37 goto error;
38 }
39 /* op */
40 int32_t op = get_json_int(obj, FIELD_OPERATION_CODE);
41 if (op == -1) {
42 LOGE("Parse Pake Request failed, field is null in operationCode");
43 goto error;
44 }
45 pake_request->operation_code = op;
46 /* version */
47 json_pobject obj_ver = get_json_obj(obj, FIELD_VERSION);
48 bool ret = parse_version(obj_ver, &pake_request->peer_version, &pake_request->peer_support_version);
49 if (!ret) {
50 LOGE("Parse Pake Request failed, field is null in version");
51 goto error;
52 }
53
54 /* support 256 mod */
55 int32_t support_256_mod = get_json_bool(obj, FIELD_SUPPORT_256_MOD);
56 if (support_256_mod == 1) {
57 pake_request->epk_len = HC_BIG_PRIME_MAX_LEN;
58 } else {
59 pake_request->epk_len = HC_BIG_PRIME_MAX_LEN_384;
60 }
61
62 free_payload(obj, data_type);
63 return (void *)pake_request;
64 error:
65 free_payload(obj, data_type);
66 FREE(pake_request);
67 return NULL;
68 }
69
free_pake_request(void * obj)70 void free_pake_request(void *obj)
71 {
72 if (obj != NULL) {
73 FREE(obj);
74 }
75 }
76
make_pake_request(void * data)77 char *make_pake_request(void *data)
78 {
79 struct pake_start_request_data *pake_request = data;
80 char *ret_str = (char *)MALLOC(RET_STR_LENGTH);
81 if (ret_str == NULL) {
82 return NULL;
83 }
84 (void)memset_s(ret_str, RET_STR_LENGTH, 0, RET_STR_LENGTH);
85 if (snprintf_s(ret_str, RET_STR_LENGTH, RET_STR_LENGTH - 1,
86 "{\"%s\":%d,\"%s\":{\"%s\":{\"%s\":\"%u.%u.%u\",\"%s\":\"%u.%u.%u\"},\"%s\":true,\"%s\":%d}}",
87 FIELD_MESSAGE, PAKE_REQUEST, FIELD_PAYLOAD, FIELD_VERSION, FIELD_CURRENT_VERSION,
88 pake_request->peer_version.first, pake_request->peer_version.second,
89 pake_request->peer_version.third, FIELD_MIN_VERSION,
90 pake_request->peer_support_version.first, pake_request->peer_support_version.second,
91 pake_request->peer_support_version.third, FIELD_SUPPORT_256_MOD,
92 FIELD_OPERATION_CODE, pake_request->operation_code) < 0) {
93 LOGE("String generate failed");
94 FREE(ret_str);
95 ret_str = NULL;
96 }
97 return ret_str;
98 }
99
100 #else /* _CUT_XXX_ */
101
102 #include "parsedata.h"
103 DEFINE_EMPTY_STRUCT_FUNC(pake_request)
104
105 #endif /* _CUT_XXX_ */
106