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 <log.h>
19 #include "securec.h"
20 #include "mem_stat.h"
21 #include "jsonutil.h"
22 #include "commonutil.h"
23 #include "pake_server.h"
24 #include "parsedata.h"
25 #include "key_agreement_version.h"
26
parse_pake_client_confirm(const char * payload,enum json_object_data_type data_type)27 void *parse_pake_client_confirm(const char *payload, enum json_object_data_type data_type)
28 {
29 struct pake_end_request_data *pake_client_confirm =
30 (struct pake_end_request_data *)MALLOC(sizeof(struct pake_end_request_data));
31 if (pake_client_confirm == NULL) {
32 return NULL;
33 }
34 (void)memset_s(pake_client_confirm, sizeof(*pake_client_confirm), 0, sizeof(*pake_client_confirm));
35 json_pobject obj = parse_payload(payload, data_type);
36 if (obj == NULL) {
37 LOGE("Parse Pake Client Confirm parse payload failed");
38 goto error;
39 }
40 /* challenge */
41 int32_t result = byte_convert(obj, FIELD_CHALLENGE, pake_client_confirm->challenge.challenge,
42 &pake_client_confirm->challenge.length, CHALLENGE_BUFF_LENGTH);
43 if (result != HC_OK) {
44 LOGE("Parse Pake Client Confirm failed, field is null in challenge");
45 goto error;
46 }
47 /* kcfData */
48 result = byte_convert(obj, FIELD_KCF_DATA, pake_client_confirm->kcf_data.hmac,
49 &pake_client_confirm->kcf_data.length, HC_HMAC_LEN);
50 if (result != HC_OK) {
51 LOGE("Parse Pake Client Confirm failed, field is null in kcfData");
52 goto error;
53 }
54 /* epk */
55 result = byte_convert(obj, FIELD_EPK, pake_client_confirm->epk.epk,
56 &pake_client_confirm->epk.length, PAKE_EPK_LENGTH);
57 if (result != HC_OK) {
58 LOGE("Parse Pake Client Confirm failed, field is null in epk");
59 goto error;
60 }
61 free_payload(obj, data_type);
62 return (void *)pake_client_confirm;
63 error:
64 free_payload(obj, data_type);
65 FREE(pake_client_confirm);
66 return NULL;
67 }
68
free_pake_client_confirm(void * obj)69 void free_pake_client_confirm(void *obj)
70 {
71 if (obj != NULL) {
72 FREE(obj);
73 }
74 }
75
make_pake_client_confirm(void * data)76 char *make_pake_client_confirm(void *data)
77 {
78 struct pake_end_request_data *pake_client_confirm = data;
79 /* kcfData */
80 uint8_t *tmp_kcf_data_hex = raw_byte_to_hex_string(pake_client_confirm->kcf_data.hmac,
81 pake_client_confirm->kcf_data.length);
82 if (tmp_kcf_data_hex == NULL) {
83 return NULL;
84 }
85 /* challenge */
86 uint8_t *tmp_cha_data_hex = raw_byte_to_hex_string(pake_client_confirm->challenge.challenge,
87 pake_client_confirm->challenge.length);
88 if (tmp_cha_data_hex == NULL) {
89 FREE(tmp_kcf_data_hex);
90 return NULL;
91 }
92 /* epk */
93 uint8_t *tmp_epk_data_hex = raw_byte_to_hex_string(pake_client_confirm->epk.epk,
94 pake_client_confirm->epk.length);
95 if (tmp_epk_data_hex == NULL) {
96 FREE(tmp_kcf_data_hex);
97 FREE(tmp_cha_data_hex);
98 return NULL;
99 }
100 char *ret_str = (char *)MALLOC(RET_STR_LENGTH);
101 if (ret_str == NULL) {
102 FREE(tmp_kcf_data_hex);
103 FREE(tmp_cha_data_hex);
104 FREE(tmp_epk_data_hex);
105 return NULL;
106 }
107 (void)memset_s(ret_str, RET_STR_LENGTH, 0, RET_STR_LENGTH);
108 if (snprintf_s(ret_str, RET_STR_LENGTH, RET_STR_LENGTH - 1,
109 "{\"%s\":%d,\"%s\":{\"%s\":\"%s\", \"%s\":\"%s\", \"%s\":\"%s\"}}", FIELD_MESSAGE,
110 PAKE_CLIENT_CONFIRM, FIELD_PAYLOAD, FIELD_KCF_DATA, tmp_kcf_data_hex, FIELD_CHALLENGE,
111 tmp_cha_data_hex, FIELD_EPK, (char *)tmp_epk_data_hex) < 0) {
112 LOGE("String generate failed");
113 FREE(ret_str);
114 ret_str = NULL;
115 }
116 FREE(tmp_kcf_data_hex);
117 FREE(tmp_cha_data_hex);
118 FREE(tmp_epk_data_hex);
119 return ret_str;
120 }
121
122 #else /* _CUT_XXX_ */
123
124 #include "parsedata.h"
125 DEFINE_EMPTY_STRUCT_FUNC(pake_client_confirm)
126
127 #endif /* _CUT_XXX_ */
128