|
| 1 | +/* |
| 2 | + * Copyright © 2025 Mobi - Com Polska Sp. z o.o. |
| 3 | + * Author: Małgorzata Olszówka <Malgorzata.Olszowka@stunnel.org> |
| 4 | + * All rights reserved. |
| 5 | + * |
| 6 | + * Redistribution and use in source and binary forms, with or without |
| 7 | + * modification, are permitted provided that the following conditions |
| 8 | + * are met: |
| 9 | + * 1. Redistributions of source code must retain the above copyright |
| 10 | + * notice, this list of conditions and the following disclaimer. |
| 11 | + * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | + * notice, this list of conditions and the following disclaimer in the |
| 13 | + * documentation and/or other materials provided with the distribution. |
| 14 | + * |
| 15 | + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 16 | + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 19 | + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 20 | + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 21 | + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 22 | + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 23 | + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 24 | + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 25 | + * SUCH DAMAGE. |
| 26 | + */ |
| 27 | + |
| 28 | +#include <openssl/opensslv.h> |
| 29 | + |
| 30 | +#if OPENSSL_VERSION_NUMBER >= 0x30000000L |
| 31 | + |
| 32 | +#include <stdio.h> |
| 33 | +#include <stdlib.h> |
| 34 | +#include <string.h> |
| 35 | + |
| 36 | +#include <openssl/err.h> |
| 37 | +#include <openssl/store.h> |
| 38 | +#include <openssl/provider.h> |
| 39 | +#include <openssl/rand.h> |
| 40 | +#include <openssl/ui.h> |
| 41 | + |
| 42 | +DEFINE_STACK_OF(OSSL_PROVIDER) |
| 43 | +static STACK_OF(OSSL_PROVIDER) *providers; |
| 44 | + |
| 45 | +static void display_openssl_errors(void) { |
| 46 | + unsigned long e; |
| 47 | + const char *file = NULL, *func = NULL, *reason = NULL; |
| 48 | + int line = 0, flags = 0; |
| 49 | + char err_buf[256]; |
| 50 | + |
| 51 | + while ((e = ERR_get_error_all(&file, &line, &func, &reason, &flags))) { |
| 52 | + ERR_error_string_n(e, err_buf, sizeof(err_buf)); |
| 53 | + fprintf(stderr, "%s:%d: %s: %s: %s\n", file ? file : "unknown file", |
| 54 | + line, func ? func : "unknown function", |
| 55 | + err_buf, reason ? reason : "unknown reason"); |
| 56 | + } |
| 57 | +} |
| 58 | + |
| 59 | +static EVP_PKEY *load_pkey(const char *uri) |
| 60 | +{ |
| 61 | + EVP_PKEY *pkey = NULL; |
| 62 | + OSSL_STORE_INFO *info; |
| 63 | + OSSL_STORE_CTX *store_ctx; |
| 64 | + |
| 65 | + store_ctx = OSSL_STORE_open(uri, NULL, NULL, NULL, NULL); |
| 66 | + if (!store_ctx) { |
| 67 | + return NULL; |
| 68 | + } |
| 69 | + if (!OSSL_STORE_expect(store_ctx, OSSL_STORE_INFO_PKEY)) { |
| 70 | + OSSL_STORE_close(store_ctx); |
| 71 | + return NULL; |
| 72 | + } |
| 73 | + info = OSSL_STORE_load(store_ctx); |
| 74 | + if (info == NULL) { |
| 75 | + OSSL_STORE_close(store_ctx); |
| 76 | + return NULL; |
| 77 | + } |
| 78 | + if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY) { |
| 79 | + pkey = OSSL_STORE_INFO_get1_PKEY(info); |
| 80 | + } |
| 81 | + OSSL_STORE_INFO_free(info); |
| 82 | + OSSL_STORE_close(store_ctx); |
| 83 | + return pkey; |
| 84 | +} |
| 85 | + |
| 86 | +static X509 *load_cert(const char *uri) |
| 87 | +{ |
| 88 | + X509 *cert = NULL; |
| 89 | + OSSL_STORE_INFO *info; |
| 90 | + OSSL_STORE_CTX *store_ctx; |
| 91 | + |
| 92 | + store_ctx = OSSL_STORE_open(uri, NULL, NULL, NULL, NULL); |
| 93 | + if (!store_ctx) { |
| 94 | + return NULL; |
| 95 | + } |
| 96 | + if (!OSSL_STORE_expect(store_ctx, OSSL_STORE_INFO_CERT)) { |
| 97 | + OSSL_STORE_close(store_ctx); |
| 98 | + return NULL; |
| 99 | + } |
| 100 | + info = OSSL_STORE_load(store_ctx); |
| 101 | + if (info == NULL) { |
| 102 | + OSSL_STORE_close(store_ctx); |
| 103 | + return NULL; |
| 104 | + } |
| 105 | + if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_CERT) { |
| 106 | + cert = OSSL_STORE_INFO_get1_CERT(info); |
| 107 | + } |
| 108 | + OSSL_STORE_INFO_free(info); |
| 109 | + OSSL_STORE_close(store_ctx); |
| 110 | + return cert; |
| 111 | +} |
| 112 | + |
| 113 | +static void provider_free(OSSL_PROVIDER *prov) |
| 114 | +{ |
| 115 | + printf("Provider \"%s\" unloaded.\n", OSSL_PROVIDER_get0_name(prov)); |
| 116 | + OSSL_PROVIDER_unload(prov); |
| 117 | +} |
| 118 | + |
| 119 | +static void providers_cleanup(void) |
| 120 | +{ |
| 121 | + sk_OSSL_PROVIDER_pop_free(providers, provider_free); |
| 122 | + providers = NULL; |
| 123 | +} |
| 124 | + |
| 125 | +static int provider_load(const char *pname) |
| 126 | +{ |
| 127 | + OSSL_PROVIDER *prov = OSSL_PROVIDER_load(NULL, pname); |
| 128 | + if (prov == NULL) { |
| 129 | + fprintf(stderr, "Unable to load provider: %s\n", pname); |
| 130 | + return 0; /* FAILED */ |
| 131 | + } |
| 132 | + if (providers == NULL) { |
| 133 | + providers = sk_OSSL_PROVIDER_new_null(); |
| 134 | + } |
| 135 | + if (providers == NULL || !sk_OSSL_PROVIDER_push(providers, prov)) { |
| 136 | + providers_cleanup(); |
| 137 | + return 0; /* FAILED */ |
| 138 | + } |
| 139 | + printf("Provider \"%s\" set.\n", OSSL_PROVIDER_get0_name(prov)); |
| 140 | + return 1; /* OK */ |
| 141 | +} |
| 142 | + |
| 143 | +int main(int argc, char *argv[]) |
| 144 | +{ |
| 145 | + EVP_PKEY *private_key = NULL; |
| 146 | + X509 *cert = NULL; |
| 147 | + int ret = EXIT_FAILURE; |
| 148 | + |
| 149 | + if (argc < 2) { |
| 150 | + fprintf(stderr, "usage: %s [certificate (PEM or URL)] [private key URL]n", argv[0]); |
| 151 | + return ret; |
| 152 | + } |
| 153 | + |
| 154 | + /* Load PKCS#11 provider */ |
| 155 | + if (!OSSL_PROVIDER_available(NULL, "pkcs11prov")) { |
| 156 | + if (!provider_load("pkcs11prov")) { |
| 157 | + fprintf(stderr, "Failed to load \"pkcs11prov\" provider\n"); |
| 158 | + display_openssl_errors(); |
| 159 | + goto cleanup; |
| 160 | + } |
| 161 | + /* load the default provider explicitly */ |
| 162 | + if (!provider_load("default")) { |
| 163 | + fprintf(stderr, "Failed to load \"default\" provider\n"); |
| 164 | + display_openssl_errors(); |
| 165 | + goto cleanup; |
| 166 | + } |
| 167 | + } |
| 168 | + |
| 169 | + /* Load certificate */ |
| 170 | + cert = load_cert(argv[1]); |
| 171 | + if (!cert) { |
| 172 | + fprintf(stderr, "Cannot load certificate: %s\n", argv[1]); |
| 173 | + display_openssl_errors(); |
| 174 | + goto cleanup; |
| 175 | + } |
| 176 | + printf("Certificate found: %s\n", argv[1]); |
| 177 | + |
| 178 | + /* Load private key */ |
| 179 | + private_key = load_pkey(argv[2]); |
| 180 | + if (!private_key) { |
| 181 | + fprintf(stderr, "Cannot load private key: %s\n", argv[1]); |
| 182 | + display_openssl_errors(); |
| 183 | + goto cleanup; |
| 184 | + } |
| 185 | + printf("Private key found.\n"); |
| 186 | + |
| 187 | + ret = X509_check_private_key(cert, private_key); |
| 188 | + if (!ret) { |
| 189 | + printf("Could not check private key.\n"); |
| 190 | + display_openssl_errors(); |
| 191 | + goto cleanup; |
| 192 | + } |
| 193 | + |
| 194 | + printf("Key and certificate matched.\n"); |
| 195 | + ret = EXIT_SUCCESS; |
| 196 | + |
| 197 | +cleanup: |
| 198 | + X509_free(cert); |
| 199 | + EVP_PKEY_free(private_key); |
| 200 | + providers_cleanup(); |
| 201 | + return ret; |
| 202 | +} |
| 203 | + |
| 204 | +#else |
| 205 | + |
| 206 | +int main() { |
| 207 | + return 0; |
| 208 | +} |
| 209 | + |
| 210 | +#endif /* OPENSSL_VERSION_NUMBER >= 0x30000000L */ |
| 211 | + |
| 212 | +/* vim: set noexpandtab: */ |
0 commit comments