1 /* SPDX-License-Identifier: BSD-2-Clause */
2 /*******************************************************************************
3 * Copyright 2017-2018, Fraunhofer SIT sponsored by Infineon Technologies AG
4 * All rights reserved.
5 *******************************************************************************/
6
7 #ifdef HAVE_CONFIG_H
8 #include <config.h>
9 #endif
10
11 #include <stdlib.h>
12 #include <stdio.h>
13 #include <errno.h>
14 #include <fcntl.h>
15 #include <unistd.h>
16
17 #include "tss2_fapi.h"
18
19 #include "test-fapi.h"
20 #define LOGMODULE test
21 #include "util/log.h"
22 #include "util/aux_util.h"
23
24 #define PASSWORD NULL
25 #define SIGN_TEMPLATE "sign,noDa"
26
27
28 /** Test the FAPI functions for PolicyPCR with key creation and usage.
29 *
30 * Tested FAPI commands:
31 * - Fapi_Provision()
32 * - Fapi_Import()
33 * - Fapi_CreateKey()
34 * - Fapi_Sign()
35 * - Fapi_ExportPolicy()
36 * - Fapi_Delete()
37 * - Fapi_Import()
38 * - Fapi_List()
39 *
40 * Tested Policies:
41 * - PolicyPcr (with currentPCRs set)
42 *
43 * @param[in,out] context The FAPI_CONTEXT.
44 * @retval EXIT_FAILURE
45 * @retval EXIT_SUCCESS
46 */
47 int
test_fapi_key_create_policy_pcr_sign(FAPI_CONTEXT * context)48 test_fapi_key_create_policy_pcr_sign(FAPI_CONTEXT *context)
49 {
50 TSS2_RC r;
51 char *policy_name = "/policy/pol_pcr16_0";
52 char *policy_pcr_read = "/policy/pol_pcr16_read";
53 char *policy_file = TOP_SOURCEDIR "/test/data/fapi/policy/pol_pcr16_0.json";
54 char *policy_pcr_read_file = TOP_SOURCEDIR "/test/data/fapi/policy/pol_pcr16_read.json";
55 FILE *stream = NULL;
56 char *json_policy = NULL;
57 long policy_size;
58
59 uint8_t *signature = NULL;
60 char *publicKey = NULL;
61 char *policy = NULL;
62 char *path_list = NULL;
63
64 r = Fapi_Provision(context, NULL, NULL, NULL);
65 goto_if_error(r, "Error Fapi_Provision", error);
66
67 r = pcr_reset(context, 16);
68 goto_if_error(r, "Error pcr_reset", error);
69
70 stream = fopen(policy_file, "r");
71 if (!stream) {
72 LOG_ERROR("File %s does not exist", policy_file);
73 goto error;
74 }
75 fseek(stream, 0L, SEEK_END);
76 policy_size = ftell(stream);
77 fclose(stream);
78 json_policy = malloc(policy_size + 1);
79 goto_if_null(json_policy,
80 "Could not allocate memory for the JSON policy",
81 TSS2_FAPI_RC_MEMORY, error);
82 stream = fopen(policy_file, "r");
83 ssize_t ret = read(fileno(stream), json_policy, policy_size);
84 if (ret != policy_size) {
85 LOG_ERROR("IO error %s.", policy_file);
86 goto error;
87 }
88 json_policy[policy_size] = '\0';
89
90 r = Fapi_Import(context, policy_name, json_policy);
91 goto_if_error(r, "Error Fapi_Import", error);
92
93 r = Fapi_CreateKey(context, "/HS/SRK/mySignKey", SIGN_TEMPLATE,
94 policy_name, PASSWORD);
95 goto_if_error(r, "Error Fapi_CreateKey", error);
96 size_t signatureSize = 0;
97
98 TPM2B_DIGEST digest = {
99 .size = 20,
100 .buffer = {
101 0x67, 0x68, 0x03, 0x3e, 0x21, 0x64, 0x68, 0x24, 0x7b, 0xd0,
102 0x31, 0xa0, 0xa2, 0xd9, 0x87, 0x6d, 0x79, 0x81, 0x8f, 0x8f
103 }
104 };
105
106 r = Fapi_Sign(context, "/HS/SRK/mySignKey", NULL,
107 &digest.buffer[0], digest.size, &signature, &signatureSize,
108 &publicKey, NULL);
109 goto_if_error(r, "Error Fapi_Sign", error);
110
111 r = Fapi_ExportPolicy(context, "HS/SRK/mySignKey", &policy);
112 goto_if_error(r, "Error Fapi_ExportPolicy", error);
113 fprintf(stderr, "\nPolicy from key:\n%s\n", policy);
114
115 SAFE_FREE(policy);
116
117 r = Fapi_ExportPolicy(context, policy_name, &policy);
118 goto_if_error(r, "Error Fapi_ExportPolicy", error);
119 fprintf(stderr, "\nPolicy from policy file:\n%s\n", policy);
120
121 /* Run test with current PCRs defined in policy */
122
123 r = Fapi_Delete(context, "/HS/SRK/mySignKey");
124 goto_if_error(r, "Error Fapi_Delete", error);
125
126 fclose(stream);
127 stream = fopen(policy_pcr_read_file, "r");
128 if (!stream) {
129 LOG_ERROR("File %s does not exist", policy_pcr_read_file);
130 goto error;
131 }
132 fseek(stream, 0L, SEEK_END);
133 policy_size = ftell(stream);
134 fclose(stream);
135
136 SAFE_FREE(json_policy);
137 SAFE_FREE(signature);
138 SAFE_FREE(publicKey);
139 SAFE_FREE(policy);
140 SAFE_FREE(path_list);
141
142 json_policy = malloc(policy_size + 1);
143 goto_if_null(json_policy,
144 "Could not allocate memory for the JSON policy",
145 TSS2_FAPI_RC_MEMORY, error);
146 stream = fopen(policy_pcr_read_file, "r");
147 ret = read(fileno(stream), json_policy, policy_size);
148 if (ret != policy_size) {
149 LOG_ERROR("IO error %s.", policy_pcr_read_file);
150 goto error;
151 }
152 json_policy[policy_size] = '\0';
153
154 r = Fapi_Import(context, policy_pcr_read, json_policy);
155 goto_if_error(r, "Error Fapi_Import", error);
156
157 r = Fapi_CreateKey(context, "/HS/SRK/mySignKey", SIGN_TEMPLATE,
158 policy_pcr_read, PASSWORD);
159 goto_if_error(r, "Error Fapi_CreateKey", error);
160 signatureSize = 0;
161
162 r = Fapi_Sign(context, "/HS/SRK/mySignKey", NULL,
163 &digest.buffer[0], digest.size, &signature, &signatureSize,
164 &publicKey, NULL);
165 goto_if_error(r, "Error Fapi_Sign", error);
166
167 r = Fapi_ExportPolicy(context, "HS/SRK/mySignKey", &policy);
168 goto_if_error(r, "Error Fapi_ExportPolicy", error);
169 fprintf(stderr, "\nPolicy from key:\n%s\n", policy);
170
171 SAFE_FREE(policy);
172
173 r = Fapi_ExportPolicy(context, policy_pcr_read, &policy);
174 goto_if_error(r, "Error Fapi_ExportPolicy", error);
175 fprintf(stderr, "\nPolicy from policy file:\n%s\n", policy);
176
177 r = Fapi_Delete(context, "/HS/SRK");
178 goto_if_error(r, "Error Fapi_Delete", error);
179
180 r = Fapi_List(context, "", &path_list);
181 goto_if_error(r, "Error Fapi_Delete", error);
182
183 fprintf(stderr, "\nPathList:\n%s\n", path_list);
184
185 SAFE_FREE(json_policy);
186 SAFE_FREE(signature);
187 SAFE_FREE(publicKey);
188 SAFE_FREE(policy);
189 SAFE_FREE(path_list);
190 return EXIT_SUCCESS;
191
192 error:
193 SAFE_FREE(json_policy);
194 SAFE_FREE(signature);
195 SAFE_FREE(publicKey);
196 SAFE_FREE(policy);
197 SAFE_FREE(path_list);
198 return EXIT_FAILURE;
199 }
200
201 int
test_invoke_fapi(FAPI_CONTEXT * fapi_context)202 test_invoke_fapi(FAPI_CONTEXT *fapi_context)
203 {
204 return test_fapi_key_create_policy_pcr_sign(fapi_context);
205 }
206