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Tidy up OpenSSL options code, support new version-agnostic client and server APIs

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This commit is contained in:
Aaron Jones 2015-05-20 02:27:59 +00:00
parent 32fb589528
commit a4c8c82703
1 changed files with 30 additions and 9 deletions
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39
libratbox/src/openssl.c
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@ -305,40 +305,61 @@ rb_init_ssl(void)
SSL_load_error_strings();
SSL_library_init();
libratbox_index = SSL_get_ex_new_index(0, libratbox_data, NULL, NULL, NULL);
#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
ssl_server_ctx = SSL_CTX_new(SSLv23_server_method());
#else
ssl_server_ctx = SSL_CTX_new(TLS_server_method());
#endif
if(ssl_server_ctx == NULL)
{
rb_lib_log("rb_init_openssl: Unable to initialize OpenSSL server context: %s",
get_ssl_error(ERR_get_error()));
ret = 0;
}
/* Disable SSLv2, make the client use our settings */
SSL_CTX_set_options(ssl_server_ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_CIPHER_SERVER_PREFERENCE
long server_options = SSL_CTX_get_options(ssl_server_ctx);
#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
server_options |= SSL_OP_NO_SSLv2;
server_options |= SSL_OP_NO_SSLv3;
#endif
#ifdef SSL_OP_SINGLE_DH_USE
| SSL_OP_SINGLE_DH_USE
server_options |= SSL_OP_SINGLE_DH_USE;
#endif
#ifdef SSL_OP_SINGLE_ECDH_USE
server_options |= SSL_OP_SINGLE_ECDH_USE;
#endif
#ifdef SSL_OP_NO_TICKET
| SSL_OP_NO_TICKET
server_options |= SSL_OP_NO_TICKET;
#endif
);
server_options |= SSL_OP_CIPHER_SERVER_PREFERENCE;
SSL_CTX_set_options(ssl_server_ctx, server_options);
SSL_CTX_set_verify(ssl_server_ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, verify_accept_all_cb);
SSL_CTX_set_session_cache_mode(ssl_server_ctx, SSL_SESS_CACHE_OFF);
SSL_CTX_set_cipher_list(ssl_server_ctx, "kEECDH+HIGH:kEDH+HIGH:HIGH:!RC4:!aNULL");
/* Set ECDHE on OpenSSL 1.00+, but make sure it's actually available because redhat are dicks
and bastardise their OpenSSL for stupid reasons... */
#if (OPENSSL_VERSION_NUMBER >= 0x10000000) && defined(NID_secp384r1)
#if (OPENSSL_VERSION_NUMBER >= 0x10000000L) && defined(NID_secp384r1)
EC_KEY *key = EC_KEY_new_by_curve_name(NID_secp384r1);
if (key) {
SSL_CTX_set_tmp_ecdh(ssl_server_ctx, key);
EC_KEY_free(key);
}
#ifdef SSL_OP_SINGLE_ECDH_USE
SSL_CTX_set_options(ssl_server_ctx, SSL_OP_SINGLE_ECDH_USE);
#endif
#endif
#if (OPENSSL_VERSION_NUMBER < 0x10100000L)
ssl_client_ctx = SSL_CTX_new(TLSv1_client_method());
#else
ssl_server_ctx = SSL_CTX_new(TLS_client_method());
#endif
if(ssl_client_ctx == NULL)
{