2 * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
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
13 #include <openssl/opensslv.h>
14 #include <openssl/ssl.h>
15 #include <openssl/ossl_typ.h>
16 #include "internal/dso_conf.h"
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 *);
23 typedef int (*OPENSSL_init_crypto_t)(uint64_t, void *);
24 typedef int (*OPENSSL_atexit_t)(void (*handler)(void));
25 typedef unsigned long (*ERR_get_error_t)(void);
26 typedef unsigned long (*OpenSSL_version_num_t)(void);
27 typedef DSO * (*DSO_dsobyaddr_t)(void (*addr)(void), int flags);
28 typedef int (*DSO_free_t)(DSO *dso);
30 typedef enum test_types_en {
38 static TEST_TYPE test_type;
39 static const char *path_crypto;
40 static const char *path_ssl;
41 static const char *path_atexit;
47 # define SHLIB_INIT NULL
50 typedef void *SHLIB_SYM;
52 static int shlib_load(const char *filename, SHLIB *lib)
54 int dl_flags = (RTLD_GLOBAL|RTLD_LAZY);
56 if (filename[strlen(filename) - 1] == ')')
57 dl_flags |= RTLD_MEMBER;
59 *lib = dlopen(filename, dl_flags);
60 return *lib == NULL ? 0 : 1;
63 static int shlib_sym(SHLIB lib, const char *symname, SHLIB_SYM *sym)
65 *sym = dlsym(lib, symname);
69 static int shlib_close(SHLIB lib)
71 return dlclose(lib) != 0 ? 0 : 1;
81 typedef HINSTANCE SHLIB;
82 typedef void *SHLIB_SYM;
84 static int shlib_load(const char *filename, SHLIB *lib)
86 *lib = LoadLibraryA(filename);
87 return *lib == NULL ? 0 : 1;
90 static int shlib_sym(SHLIB lib, const char *symname, SHLIB_SYM *sym)
92 *sym = (SHLIB_SYM)GetProcAddress(lib, symname);
96 static int shlib_close(SHLIB lib)
98 return FreeLibrary(lib) == 0 ? 0 : 1;
103 #if defined(DSO_DLFCN) || defined(DSO_WIN32)
105 static int atexit_handler_done = 0;
107 static void atexit_handler(void)
109 FILE *atexit_file = fopen(path_atexit, "w");
111 if (atexit_file == NULL)
114 fprintf(atexit_file, "atexit() run\n");
116 atexit_handler_done++;
119 static int test_lib(void)
121 SHLIB ssllib = SHLIB_INIT;
122 SHLIB cryptolib = SHLIB_INIT;
128 TLS_method_t myTLS_method;
129 SSL_CTX_new_t mySSL_CTX_new;
130 SSL_CTX_free_t mySSL_CTX_free;
131 ERR_get_error_t myERR_get_error;
132 OpenSSL_version_num_t myOpenSSL_version_num;
133 OPENSSL_atexit_t myOPENSSL_atexit;
141 if (!shlib_load(path_crypto, &cryptolib)) {
142 fprintf(stderr, "Failed to load libcrypto\n");
145 if (test_type != CRYPTO_FIRST)
150 if (!shlib_load(path_ssl, &ssllib)) {
151 fprintf(stderr, "Failed to load libssl\n");
154 if (test_type != SSL_FIRST)
156 if (!shlib_load(path_crypto, &cryptolib)) {
157 fprintf(stderr, "Failed to load libcrypto\n");
163 if (test_type == NO_ATEXIT) {
164 OPENSSL_init_crypto_t myOPENSSL_init_crypto;
166 if (!shlib_sym(cryptolib, "OPENSSL_init_crypto", &symbols[0].sym)) {
167 fprintf(stderr, "Failed to load OPENSSL_init_crypto symbol\n");
170 myOPENSSL_init_crypto = (OPENSSL_init_crypto_t)symbols[0].func;
171 if (!myOPENSSL_init_crypto(OPENSSL_INIT_NO_ATEXIT, NULL)) {
172 fprintf(stderr, "Failed to initialise libcrypto\n");
177 if (test_type != JUST_CRYPTO
178 && test_type != DSO_REFTEST
179 && test_type != NO_ATEXIT) {
180 if (!shlib_sym(ssllib, "TLS_method", &symbols[0].sym)
181 || !shlib_sym(ssllib, "SSL_CTX_new", &symbols[1].sym)
182 || !shlib_sym(ssllib, "SSL_CTX_free", &symbols[2].sym)) {
183 fprintf(stderr, "Failed to load libssl symbols\n");
186 myTLS_method = (TLS_method_t)symbols[0].func;
187 mySSL_CTX_new = (SSL_CTX_new_t)symbols[1].func;
188 mySSL_CTX_free = (SSL_CTX_free_t)symbols[2].func;
189 ctx = mySSL_CTX_new(myTLS_method());
191 fprintf(stderr, "Failed to create SSL_CTX\n");
197 if (!shlib_sym(cryptolib, "ERR_get_error", &symbols[0].sym)
198 || !shlib_sym(cryptolib, "OpenSSL_version_num", &symbols[1].sym)
199 || !shlib_sym(cryptolib, "OPENSSL_atexit", &symbols[2].sym)) {
200 fprintf(stderr, "Failed to load libcrypto symbols\n");
203 myERR_get_error = (ERR_get_error_t)symbols[0].func;
204 if (myERR_get_error() != 0) {
205 fprintf(stderr, "Unexpected ERR_get_error() response\n");
209 myOpenSSL_version_num = (OpenSSL_version_num_t)symbols[1].func;
210 if (myOpenSSL_version_num() != OPENSSL_VERSION_NUMBER) {
211 fprintf(stderr, "Invalid library version number\n");
215 myOPENSSL_atexit = (OPENSSL_atexit_t)symbols[2].func;
216 if (!myOPENSSL_atexit(atexit_handler)) {
217 fprintf(stderr, "Failed to register atexit handler\n");
221 if (test_type == DSO_REFTEST) {
223 DSO_dsobyaddr_t myDSO_dsobyaddr;
224 DSO_free_t myDSO_free;
227 * This is resembling the code used in ossl_init_base() and
228 * OPENSSL_atexit() to block unloading the library after dlclose().
229 * We are not testing this on Windows, because it is done there in a
230 * completely different way. Especially as a call to DSO_dsobyaddr()
231 * will always return an error, because DSO_pathbyaddr() is not
234 if (!shlib_sym(cryptolib, "DSO_dsobyaddr", &symbols[0].sym)
235 || !shlib_sym(cryptolib, "DSO_free", &symbols[1].sym)) {
236 fprintf(stderr, "Unable to load DSO symbols\n");
240 myDSO_dsobyaddr = (DSO_dsobyaddr_t)symbols[0].func;
241 myDSO_free = (DSO_free_t)symbols[1].func;
245 /* use known symbol from crypto module */
246 hndl = myDSO_dsobyaddr((void (*)(void))myERR_get_error, 0);
248 fprintf(stderr, "DSO_dsobyaddr() failed\n");
253 # endif /* DSO_DLFCN */
256 if (!shlib_close(cryptolib)) {
257 fprintf(stderr, "Failed to close libcrypto\n");
261 if (test_type == CRYPTO_FIRST || test_type == SSL_FIRST) {
262 if (!shlib_close(ssllib)) {
263 fprintf(stderr, "Failed to close libssl\n");
268 # if defined(OPENSSL_NO_PINSHARED) \
269 && defined(__GLIBC__) \
270 && defined(__GLIBC_PREREQ) \
271 && defined(OPENSSL_SYS_LINUX)
272 # if __GLIBC_PREREQ(2, 3)
274 * If we didn't pin the so then we are hopefully on a platform that supports
275 * running atexit() on so unload. If not we might crash. We know this is
276 * true on linux since glibc 2.2.3
278 if (test_type != NO_ATEXIT && atexit_handler_done != 1) {
279 fprintf(stderr, "atexit() handler did not run\n");
293 * shlibloadtest should not use the normal test framework because we don't want
294 * it to link against libcrypto (which the framework uses). The point of the
295 * test is to check dynamic loading and unloading of libcrypto/libssl.
297 int main(int argc, char *argv[])
302 fprintf(stderr, "Incorrect number of arguments\n");
308 if (strcmp(p, "-crypto_first") == 0) {
309 test_type = CRYPTO_FIRST;
310 } else if (strcmp(p, "-ssl_first") == 0) {
311 test_type = SSL_FIRST;
312 } else if (strcmp(p, "-just_crypto") == 0) {
313 test_type = JUST_CRYPTO;
314 } else if (strcmp(p, "-dso_ref") == 0) {
315 test_type = DSO_REFTEST;
316 } else if (strcmp(p, "-no_atexit") == 0) {
317 test_type = NO_ATEXIT;
319 fprintf(stderr, "Unrecognised argument\n");
322 path_crypto = argv[2];
324 path_atexit = argv[4];
325 if (path_crypto == NULL || path_ssl == NULL) {
326 fprintf(stderr, "Invalid libcrypto/libssl path\n");
330 #if defined(DSO_DLFCN) || defined(DSO_WIN32)