diff options
Diffstat (limited to 'app/openvpn/src/openvpn/crypto_openssl.c')
| -rw-r--r-- | app/openvpn/src/openvpn/crypto_openssl.c | 83 |
1 files changed, 22 insertions, 61 deletions
diff --git a/app/openvpn/src/openvpn/crypto_openssl.c b/app/openvpn/src/openvpn/crypto_openssl.c index 53425029..c3480e02 100644 --- a/app/openvpn/src/openvpn/crypto_openssl.c +++ b/app/openvpn/src/openvpn/crypto_openssl.c @@ -57,59 +57,6 @@ #warning Some OpenSSL HMAC message digests now support key lengths greater than MAX_HMAC_KEY_LENGTH -- consider increasing MAX_HMAC_KEY_LENGTH #endif -/* - * - * Workarounds for incompatibilites between OpenSSL libraries. - * Right now we accept OpenSSL libraries from 0.9.5 to 0.9.7. - * - */ - -#if SSLEAY_VERSION_NUMBER < 0x00907000L - -/* Workaround: EVP_CIPHER_mode is defined wrong in OpenSSL 0.9.6 but is fixed in 0.9.7 */ -#undef EVP_CIPHER_mode -#define EVP_CIPHER_mode(e) (((e)->flags) & EVP_CIPH_MODE) - -#define DES_cblock des_cblock -#define DES_is_weak_key des_is_weak_key -#define DES_check_key_parity des_check_key_parity -#define DES_set_odd_parity des_set_odd_parity - -#define HMAC_CTX_init(ctx) CLEAR (*ctx) -#define HMAC_Init_ex(ctx,sec,len,md,impl) HMAC_Init(ctx, sec, len, md) -#define HMAC_CTX_cleanup(ctx) HMAC_cleanup(ctx) -#define EVP_MD_CTX_cleanup(md) CLEAR (*md) - -#define INFO_CALLBACK_SSL_CONST - -#endif - -static inline int -EVP_CipherInit_ov (EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type, uint8_t *key, uint8_t *iv, int enc) -{ - return EVP_CipherInit (ctx, type, key, iv, enc); -} - -static inline int -EVP_CipherUpdate_ov (EVP_CIPHER_CTX *ctx, uint8_t *out, int *outl, uint8_t *in, int inl) -{ - return EVP_CipherUpdate (ctx, out, outl, in, inl); -} - -static inline bool -cipher_ok (const char* name) -{ - return true; -} - -#ifndef EVP_CIPHER_name -#define EVP_CIPHER_name(e) OBJ_nid2sn(EVP_CIPHER_nid(e)) -#endif - -#ifndef EVP_MD_name -#define EVP_MD_name(e) OBJ_nid2sn(EVP_MD_type(e)) -#endif - #if HAVE_OPENSSL_ENGINE #include <openssl/engine.h> @@ -194,7 +141,8 @@ crypto_init_lib_engine (const char *engine_name) void crypto_init_lib (void) { -#ifndef USE_SSL +#ifndef ENABLE_SSL + /* If SSL is enabled init is taken care of in ssl_openssl.c */ #ifndef ENABLE_SMALL ERR_load_crypto_strings (); #endif @@ -215,7 +163,8 @@ crypto_init_lib (void) void crypto_uninit_lib (void) { -#ifndef USE_SSL +#ifndef ENABLE_SSL + /* If SSL is enabled cleanup is taken care of in ssl_openssl.c */ EVP_cleanup (); #ifndef ENABLE_SMALL ERR_free_strings (); @@ -281,6 +230,18 @@ crypto_init_dmalloc (void) } #endif /* DMALLOC */ +const char * +translate_cipher_name_from_openvpn (const char *cipher_name) { + // OpenSSL doesn't require any translation + return cipher_name; +} + +const char * +translate_cipher_name_to_openvpn (const char *cipher_name) { + // OpenSSL doesn't require any translation + return cipher_name; +} + void show_available_ciphers () { @@ -298,7 +259,7 @@ show_available_ciphers () for (nid = 0; nid < 10000; ++nid) /* is there a better way to get the size of the nid list? */ { const EVP_CIPHER *cipher = EVP_get_cipherbynid (nid); - if (cipher && cipher_ok (OBJ_nid2sn (nid))) + if (cipher) { const unsigned int mode = EVP_CIPHER_mode (cipher); if (mode == EVP_CIPH_CBC_MODE @@ -477,7 +438,7 @@ cipher_kt_get (const char *ciphername) cipher = EVP_get_cipherbyname (ciphername); - if ((NULL == cipher) || !cipher_ok (OBJ_nid2sn (EVP_CIPHER_nid (cipher)))) + if (NULL == cipher) msg (M_SSLERR, "Cipher algorithm '%s' not found", ciphername); if (EVP_CIPHER_key_length (cipher) > MAX_CIPHER_KEY_LENGTH) @@ -538,13 +499,13 @@ cipher_ctx_init (EVP_CIPHER_CTX *ctx, uint8_t *key, int key_len, CLEAR (*ctx); EVP_CIPHER_CTX_init (ctx); - if (!EVP_CipherInit_ov (ctx, kt, NULL, NULL, enc)) + if (!EVP_CipherInit (ctx, kt, NULL, NULL, enc)) msg (M_SSLERR, "EVP cipher init #1"); #ifdef HAVE_EVP_CIPHER_CTX_SET_KEY_LENGTH if (!EVP_CIPHER_CTX_set_key_length (ctx, key_len)) msg (M_SSLERR, "EVP set key size"); #endif - if (!EVP_CipherInit_ov (ctx, NULL, key, NULL, enc)) + if (!EVP_CipherInit (ctx, NULL, key, NULL, enc)) msg (M_SSLERR, "EVP cipher init #2"); /* make sure we used a big enough key */ @@ -578,14 +539,14 @@ cipher_ctx_mode (const EVP_CIPHER_CTX *ctx) int cipher_ctx_reset (EVP_CIPHER_CTX *ctx, uint8_t *iv_buf) { - return EVP_CipherInit_ov (ctx, NULL, NULL, iv_buf, -1); + return EVP_CipherInit (ctx, NULL, NULL, iv_buf, -1); } int cipher_ctx_update (EVP_CIPHER_CTX *ctx, uint8_t *dst, int *dst_len, uint8_t *src, int src_len) { - return EVP_CipherUpdate_ov (ctx, dst, dst_len, src, src_len); + return EVP_CipherUpdate (ctx, dst, dst_len, src, src_len); } int |