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b987d748 | 1 | /* |
3c2bdd7d | 2 | * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved. |
b987d748 | 3 | * |
909f1a2e | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
b987d748 MC |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | #include <stdio.h> | |
11 | #include <string.h> | |
12 | #include <stdlib.h> | |
13 | #include <openssl/opensslv.h> | |
bdd07c78 | 14 | #include <openssl/ssl.h> |
50cd4768 | 15 | #include <openssl/types.h> |
9800b1a0 | 16 | #include "simpledynamic.h" |
b987d748 | 17 | |
4af14b7b MK |
18 | typedef void DSO; |
19 | ||
b987d748 MC |
20 | typedef const SSL_METHOD * (*TLS_method_t)(void); |
21 | typedef SSL_CTX * (*SSL_CTX_new_t)(const SSL_METHOD *meth); | |
22 | typedef void (*SSL_CTX_free_t)(SSL_CTX *); | |
88d57bf8 MC |
23 | typedef int (*OPENSSL_init_crypto_t)(uint64_t, void *); |
24 | typedef int (*OPENSSL_atexit_t)(void (*handler)(void)); | |
b987d748 | 25 | typedef unsigned long (*ERR_get_error_t)(void); |
3a63dbef RL |
26 | typedef unsigned long (*OPENSSL_version_major_t)(void); |
27 | typedef unsigned long (*OPENSSL_version_minor_t)(void); | |
28 | typedef unsigned long (*OPENSSL_version_patch_t)(void); | |
26db3246 | 29 | typedef DSO * (*DSO_dsobyaddr_t)(void (*addr)(void), int flags); |
4af14b7b | 30 | typedef int (*DSO_free_t)(DSO *dso); |
b987d748 | 31 | |
e0011aa8 RS |
32 | typedef enum test_types_en { |
33 | CRYPTO_FIRST, | |
34 | SSL_FIRST, | |
4af14b7b | 35 | JUST_CRYPTO, |
88d57bf8 MC |
36 | DSO_REFTEST, |
37 | NO_ATEXIT | |
e0011aa8 RS |
38 | } TEST_TYPE; |
39 | ||
40 | static TEST_TYPE test_type; | |
41 | static const char *path_crypto; | |
42 | static const char *path_ssl; | |
88d57bf8 | 43 | static const char *path_atexit; |
e0011aa8 | 44 | |
9800b1a0 | 45 | #ifdef SD_INIT |
bdd07c78 | 46 | |
41999e7d MC |
47 | static int atexit_handler_done = 0; |
48 | ||
88d57bf8 MC |
49 | static void atexit_handler(void) |
50 | { | |
51 | FILE *atexit_file = fopen(path_atexit, "w"); | |
52 | ||
53 | if (atexit_file == NULL) | |
54 | return; | |
55 | ||
56 | fprintf(atexit_file, "atexit() run\n"); | |
57 | fclose(atexit_file); | |
41999e7d | 58 | atexit_handler_done++; |
88d57bf8 MC |
59 | } |
60 | ||
bdd07c78 | 61 | static int test_lib(void) |
b987d748 | 62 | { |
9800b1a0 RL |
63 | SD ssllib = SD_INIT; |
64 | SD cryptolib = SD_INIT; | |
b987d748 MC |
65 | SSL_CTX *ctx; |
66 | union { | |
bdd07c78 | 67 | void (*func)(void); |
9800b1a0 | 68 | SD_SYM sym; |
88d57bf8 | 69 | } symbols[5]; |
bdd07c78 RS |
70 | TLS_method_t myTLS_method; |
71 | SSL_CTX_new_t mySSL_CTX_new; | |
72 | SSL_CTX_free_t mySSL_CTX_free; | |
73 | ERR_get_error_t myERR_get_error; | |
3a63dbef RL |
74 | OPENSSL_version_major_t myOPENSSL_version_major; |
75 | OPENSSL_version_minor_t myOPENSSL_version_minor; | |
76 | OPENSSL_version_patch_t myOPENSSL_version_patch; | |
88d57bf8 | 77 | OPENSSL_atexit_t myOPENSSL_atexit; |
bdd07c78 RS |
78 | int result = 0; |
79 | ||
80 | switch (test_type) { | |
81 | case JUST_CRYPTO: | |
df5228e3 | 82 | case DSO_REFTEST: |
88d57bf8 | 83 | case NO_ATEXIT: |
bdd07c78 | 84 | case CRYPTO_FIRST: |
9800b1a0 | 85 | if (!sd_load(path_crypto, &cryptolib, SD_SHLIB)) { |
d0f2f202 | 86 | fprintf(stderr, "Failed to load libcrypto\n"); |
bdd07c78 | 87 | goto end; |
d0f2f202 MC |
88 | } |
89 | if (test_type != CRYPTO_FIRST) | |
90 | break; | |
91 | /* Fall through */ | |
92 | ||
bdd07c78 | 93 | case SSL_FIRST: |
9800b1a0 | 94 | if (!sd_load(path_ssl, &ssllib, SD_SHLIB)) { |
d0f2f202 MC |
95 | fprintf(stderr, "Failed to load libssl\n"); |
96 | goto end; | |
97 | } | |
98 | if (test_type != SSL_FIRST) | |
99 | break; | |
9800b1a0 | 100 | if (!sd_load(path_crypto, &cryptolib, SD_SHLIB)) { |
d0f2f202 | 101 | fprintf(stderr, "Failed to load libcrypto\n"); |
bdd07c78 | 102 | goto end; |
d0f2f202 | 103 | } |
bdd07c78 | 104 | break; |
b987d748 MC |
105 | } |
106 | ||
88d57bf8 MC |
107 | if (test_type == NO_ATEXIT) { |
108 | OPENSSL_init_crypto_t myOPENSSL_init_crypto; | |
109 | ||
9800b1a0 | 110 | if (!sd_sym(cryptolib, "OPENSSL_init_crypto", &symbols[0].sym)) { |
88d57bf8 MC |
111 | fprintf(stderr, "Failed to load OPENSSL_init_crypto symbol\n"); |
112 | goto end; | |
113 | } | |
114 | myOPENSSL_init_crypto = (OPENSSL_init_crypto_t)symbols[0].func; | |
115 | if (!myOPENSSL_init_crypto(OPENSSL_INIT_NO_ATEXIT, NULL)) { | |
116 | fprintf(stderr, "Failed to initialise libcrypto\n"); | |
117 | goto end; | |
118 | } | |
119 | } | |
120 | ||
121 | if (test_type != JUST_CRYPTO | |
122 | && test_type != DSO_REFTEST | |
123 | && test_type != NO_ATEXIT) { | |
9800b1a0 RL |
124 | if (!sd_sym(ssllib, "TLS_method", &symbols[0].sym) |
125 | || !sd_sym(ssllib, "SSL_CTX_new", &symbols[1].sym) | |
126 | || !sd_sym(ssllib, "SSL_CTX_free", &symbols[2].sym)) { | |
d0f2f202 | 127 | fprintf(stderr, "Failed to load libssl symbols\n"); |
bdd07c78 | 128 | goto end; |
d0f2f202 | 129 | } |
bdd07c78 RS |
130 | myTLS_method = (TLS_method_t)symbols[0].func; |
131 | mySSL_CTX_new = (SSL_CTX_new_t)symbols[1].func; | |
132 | mySSL_CTX_free = (SSL_CTX_free_t)symbols[2].func; | |
d0f2f202 MC |
133 | ctx = mySSL_CTX_new(myTLS_method()); |
134 | if (ctx == NULL) { | |
135 | fprintf(stderr, "Failed to create SSL_CTX\n"); | |
bdd07c78 | 136 | goto end; |
d0f2f202 | 137 | } |
bdd07c78 | 138 | mySSL_CTX_free(ctx); |
b987d748 MC |
139 | } |
140 | ||
9800b1a0 RL |
141 | if (!sd_sym(cryptolib, "ERR_get_error", &symbols[0].sym) |
142 | || !sd_sym(cryptolib, "OPENSSL_version_major", &symbols[1].sym) | |
143 | || !sd_sym(cryptolib, "OPENSSL_version_minor", &symbols[2].sym) | |
144 | || !sd_sym(cryptolib, "OPENSSL_version_patch", &symbols[3].sym) | |
145 | || !sd_sym(cryptolib, "OPENSSL_atexit", &symbols[4].sym)) { | |
d0f2f202 | 146 | fprintf(stderr, "Failed to load libcrypto symbols\n"); |
bdd07c78 | 147 | goto end; |
d0f2f202 | 148 | } |
bdd07c78 | 149 | myERR_get_error = (ERR_get_error_t)symbols[0].func; |
d0f2f202 MC |
150 | if (myERR_get_error() != 0) { |
151 | fprintf(stderr, "Unexpected ERR_get_error() response\n"); | |
bdd07c78 | 152 | goto end; |
d0f2f202 | 153 | } |
00c8f1b0 | 154 | |
d0f2f202 | 155 | /* Library and header version should be identical in this test */ |
3a63dbef RL |
156 | myOPENSSL_version_major = (OPENSSL_version_major_t)symbols[1].func; |
157 | myOPENSSL_version_minor = (OPENSSL_version_minor_t)symbols[2].func; | |
158 | myOPENSSL_version_patch = (OPENSSL_version_patch_t)symbols[3].func; | |
d0f2f202 MC |
159 | if (myOPENSSL_version_major() != OPENSSL_VERSION_MAJOR |
160 | || myOPENSSL_version_minor() != OPENSSL_VERSION_MINOR | |
161 | || myOPENSSL_version_patch() != OPENSSL_VERSION_PATCH) { | |
162 | fprintf(stderr, "Invalid library version number\n"); | |
bdd07c78 | 163 | goto end; |
d0f2f202 | 164 | } |
bdd07c78 | 165 | |
88d57bf8 MC |
166 | myOPENSSL_atexit = (OPENSSL_atexit_t)symbols[4].func; |
167 | if (!myOPENSSL_atexit(atexit_handler)) { | |
168 | fprintf(stderr, "Failed to register atexit handler\n"); | |
169 | goto end; | |
170 | } | |
171 | ||
4af14b7b MK |
172 | if (test_type == DSO_REFTEST) { |
173 | # ifdef DSO_DLFCN | |
84e68a1b RL |
174 | DSO_dsobyaddr_t myDSO_dsobyaddr; |
175 | DSO_free_t myDSO_free; | |
176 | ||
4af14b7b MK |
177 | /* |
178 | * This is resembling the code used in ossl_init_base() and | |
179 | * OPENSSL_atexit() to block unloading the library after dlclose(). | |
180 | * We are not testing this on Windows, because it is done there in a | |
181 | * completely different way. Especially as a call to DSO_dsobyaddr() | |
182 | * will always return an error, because DSO_pathbyaddr() is not | |
183 | * implemented there. | |
184 | */ | |
9800b1a0 RL |
185 | if (!sd_sym(cryptolib, "DSO_dsobyaddr", &symbols[0].sym) |
186 | || !sd_sym(cryptolib, "DSO_free", &symbols[1].sym)) { | |
d0f2f202 | 187 | fprintf(stderr, "Unable to load DSO symbols\n"); |
4af14b7b | 188 | goto end; |
d0f2f202 | 189 | } |
4af14b7b MK |
190 | |
191 | myDSO_dsobyaddr = (DSO_dsobyaddr_t)symbols[0].func; | |
192 | myDSO_free = (DSO_free_t)symbols[1].func; | |
193 | ||
194 | { | |
195 | DSO *hndl; | |
196 | /* use known symbol from crypto module */ | |
d0f2f202 MC |
197 | hndl = myDSO_dsobyaddr((void (*)(void))myERR_get_error, 0); |
198 | if (hndl == NULL) { | |
199 | fprintf(stderr, "DSO_dsobyaddr() failed\n"); | |
4af14b7b | 200 | goto end; |
d0f2f202 | 201 | } |
cfaad171 | 202 | myDSO_free(hndl); |
4af14b7b MK |
203 | } |
204 | # endif /* DSO_DLFCN */ | |
205 | } | |
206 | ||
9800b1a0 | 207 | if (!sd_close(cryptolib)) { |
41999e7d MC |
208 | fprintf(stderr, "Failed to close libcrypto\n"); |
209 | goto end; | |
210 | } | |
65bf029d | 211 | cryptolib = SD_INIT; |
d0f2f202 | 212 | |
41999e7d | 213 | if (test_type == CRYPTO_FIRST || test_type == SSL_FIRST) { |
9800b1a0 | 214 | if (!sd_close(ssllib)) { |
d0f2f202 MC |
215 | fprintf(stderr, "Failed to close libssl\n"); |
216 | goto end; | |
217 | } | |
65bf029d | 218 | ssllib = SD_INIT; |
41999e7d | 219 | } |
d0f2f202 | 220 | |
41999e7d MC |
221 | # if defined(OPENSSL_NO_PINSHARED) \ |
222 | && defined(__GLIBC__) \ | |
223 | && defined(__GLIBC_PREREQ) \ | |
224 | && defined(OPENSSL_SYS_LINUX) | |
225 | # if __GLIBC_PREREQ(2, 3) | |
226 | /* | |
227 | * If we didn't pin the so then we are hopefully on a platform that supports | |
228 | * running atexit() on so unload. If not we might crash. We know this is | |
229 | * true on linux since glibc 2.2.3 | |
230 | */ | |
231 | if (test_type != NO_ATEXIT && atexit_handler_done != 1) { | |
232 | fprintf(stderr, "atexit() handler did not run\n"); | |
233 | goto end; | |
b987d748 | 234 | } |
41999e7d MC |
235 | # endif |
236 | # endif | |
b987d748 | 237 | |
bdd07c78 RS |
238 | result = 1; |
239 | end: | |
65bf029d P |
240 | if (cryptolib != SD_INIT) |
241 | sd_close(cryptolib); | |
242 | if (ssllib != SD_INIT) | |
243 | sd_close(ssllib); | |
bdd07c78 RS |
244 | return result; |
245 | } | |
e0011aa8 RS |
246 | #endif |
247 | ||
b987d748 | 248 | |
d0f2f202 MC |
249 | /* |
250 | * shlibloadtest should not use the normal test framework because we don't want | |
251 | * it to link against libcrypto (which the framework uses). The point of the | |
252 | * test is to check dynamic loading and unloading of libcrypto/libssl. | |
253 | */ | |
254 | int main(int argc, char *argv[]) | |
bdd07c78 | 255 | { |
d0f2f202 MC |
256 | const char *p; |
257 | ||
88d57bf8 MC |
258 | if (argc != 5) { |
259 | fprintf(stderr, "Incorrect number of arguments\n"); | |
d0f2f202 MC |
260 | return 1; |
261 | } | |
262 | ||
263 | p = argv[1]; | |
b987d748 | 264 | |
ad887416 | 265 | if (strcmp(p, "-crypto_first") == 0) { |
bdd07c78 | 266 | test_type = CRYPTO_FIRST; |
ad887416 | 267 | } else if (strcmp(p, "-ssl_first") == 0) { |
bdd07c78 | 268 | test_type = SSL_FIRST; |
ad887416 | 269 | } else if (strcmp(p, "-just_crypto") == 0) { |
bdd07c78 | 270 | test_type = JUST_CRYPTO; |
4af14b7b | 271 | } else if (strcmp(p, "-dso_ref") == 0) { |
df5228e3 | 272 | test_type = DSO_REFTEST; |
88d57bf8 MC |
273 | } else if (strcmp(p, "-no_atexit") == 0) { |
274 | test_type = NO_ATEXIT; | |
bdd07c78 | 275 | } else { |
88d57bf8 | 276 | fprintf(stderr, "Unrecognised argument\n"); |
d0f2f202 MC |
277 | return 1; |
278 | } | |
279 | path_crypto = argv[2]; | |
280 | path_ssl = argv[3]; | |
88d57bf8 | 281 | path_atexit = argv[4]; |
d0f2f202 MC |
282 | if (path_crypto == NULL || path_ssl == NULL) { |
283 | fprintf(stderr, "Invalid libcrypto/libssl path\n"); | |
284 | return 1; | |
b987d748 MC |
285 | } |
286 | ||
9800b1a0 | 287 | #ifdef SD_INIT |
d0f2f202 MC |
288 | if (!test_lib()) |
289 | return 1; | |
e0011aa8 | 290 | #endif |
d0f2f202 | 291 | return 0; |
b987d748 | 292 | } |