/**
* Create a SSL context.
*/
static int create(lua_State *L)
{
p_context ctx;
LSEC_SSL_METHOD *method;
method = str2method(luaL_checkstring(L, 1));
if (!method) {
lua_pushnil(L);
lua_pushstring(L, "invalid protocol");
return 2;
}
ctx = (p_context) lua_newuserdata(L, sizeof(t_context));
if (!ctx) {
lua_pushnil(L);
lua_pushstring(L, "error creating context");
return 2;
}
ctx->context = SSL_CTX_new(method);
if (!ctx->context) {
lua_pushnil(L);
lua_pushstring(L, "error creating context");
return 2;
}
ctx->mode = LSEC_MODE_INVALID;
luaL_getmetatable(L, "SSL:Context");
lua_setmetatable(L, -2);
/* No session support */
SSL_CTX_set_session_cache_mode(ctx->context, SSL_SESS_CACHE_OFF);
/* Link lua_State with the context */
SSL_CTX_set_app_data(ctx->context, (void*)L);
return 1;
}
static int BSslSetupVerify(SSL_CTX *pSCtx, SslServerBind const *pSSLB)
{
char const *pszKeyFile = pSSLB->pszKeyFile;
if (pSSLB->pszCertFile != NULL) {
if (SSL_CTX_use_certificate_chain_file(pSCtx,
pSSLB->pszCertFile) <= 0) {
ErrSetErrorCode(ERR_SSL_SETCERT, pSSLB->pszCertFile);
return ERR_SSL_SETCERT;
}
if (pszKeyFile == NULL)
pszKeyFile = pSSLB->pszCertFile;
}
if (pszKeyFile != NULL) {
if (SSL_CTX_use_PrivateKey_file(pSCtx, pszKeyFile,
SSL_FILETYPE_PEM) <= 0) {
ErrSetErrorCode(ERR_SSL_SETKEY, pszKeyFile);
return ERR_SSL_SETKEY;
}
if (!SSL_CTX_check_private_key(pSCtx)) {
ErrSetErrorCode(ERR_SSL_CHECKKEY, pszKeyFile);
return ERR_SSL_CHECKKEY;
}
}
if (pSSLB->ulFlags & BSSLF_WANT_VERIFY) {
int iVerMode = SSL_VERIFY_PEER;
if (pSSLB->ulFlags & BSSLF_WANT_CERT)
iVerMode |= SSL_VERIFY_FAIL_IF_NO_PEER_CERT;
SSL_CTX_set_verify(pSCtx, iVerMode, BSslCertVerifyCB);
if (pSSLB->iMaxDepth > 0)
SSL_CTX_set_verify_depth(pSCtx, pSSLB->iMaxDepth);
SSL_CTX_set_app_data(pSCtx, pSSLB);
if (pSSLB->pszCAFile != NULL || pSSLB->pszCAPath != NULL) {
if (!SSL_CTX_load_verify_locations(pSCtx, pSSLB->pszCAFile,
pSSLB->pszCAPath)) {
ErrSetErrorCode(ERR_SSL_VERPATHS);
return ERR_SSL_VERPATHS;
}
} else if (!SSL_CTX_set_default_verify_paths(pSCtx)) {
ErrSetErrorCode(ERR_SSL_VERPATHS);
return ERR_SSL_VERPATHS;
}
}
return 0;
}
int
_openssl_env_init(openssl_env *env, char *engine, int server) {
/*
* Create an OpenSSL environment (method and context).
* If ``server'' is 1, the environment is that of a SSL
* server.
*/
const long options = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION;
env->meth = SSLv23_method();
env->ctx = SSL_CTX_new(env->meth);
SSL_CTX_set_options(env->ctx, options);
if (_options.sslciphers) {
SSL_CTX_set_cipher_list(env->ctx, _options.sslciphers);
}
#ifdef HAVE_OPENSSL_ENGINE
if (engine) {
retry:
if ((env->engine = ENGINE_by_id(engine)) == NULL) {
fprintf(stderr,"invalid engine \"%s\"\n", engine);
ENGINE_free(env->engine);
engine = "openssl";
goto retry;
}
if (!ENGINE_set_default(env->engine, ENGINE_METHOD_ALL)) {
fprintf(stderr,"can't use that engine\n");
ENGINE_free(env->engine);
engine = "openssl";
goto retry;
}
}
#endif
#ifdef HAVE_OPENSSL_ENGINE
SSL_CTX_set_app_data(env->ctx, env);
#endif
if (server) {
SSL_CTX_set_options(env->ctx, SSL_OP_SINGLE_DH_USE);
SSL_CTX_set_session_cache_mode(env->ctx, SSL_SESS_CACHE_OFF);
SSL_CTX_set_quiet_shutdown(env->ctx, 1);
}
return 1;
}
static SSL *
open_ssl_connection (rfbClient *client, int sockfd, rfbBool anonTLS)
{
SSL_CTX *ssl_ctx = NULL;
SSL *ssl = NULL;
int n, finished = 0;
BIO *sbio;
ssl_ctx = SSL_CTX_new (SSLv23_client_method ());
SSL_CTX_set_default_verify_paths (ssl_ctx);
SSL_CTX_set_verify (ssl_ctx, SSL_VERIFY_NONE, &ssl_verify);
ssl = SSL_new (ssl_ctx);
/* TODO: finetune this list, take into account anonTLS bool */
SSL_set_cipher_list(ssl, "ALL");
SSL_set_fd (ssl, sockfd);
SSL_CTX_set_app_data (ssl_ctx, client);
do
{
n = SSL_connect(ssl);
if (n != 1)
{
if (wait_for_data(ssl, n, 1) != 1)
{
finished = 1;
if (ssl->ctx)
SSL_CTX_free (ssl->ctx);
SSL_free(ssl);
SSL_shutdown (ssl);
return NULL;
}
}
} while( n != 1 && finished != 1 );
return ssl;
}
/**
* Create a SSL context.
*/
static int create(lua_State *L)
{
p_context ctx;
const char *str_method;
LSEC_SSL_METHOD *method;
str_method = luaL_checkstring(L, 1);
method = str2method(str_method);
if (!method) {
lua_pushnil(L);
lua_pushfstring(L, "invalid protocol (%s)", str_method);
return 2;
}
ctx = (p_context) lua_newuserdata(L, sizeof(t_context));
if (!ctx) {
lua_pushnil(L);
lua_pushstring(L, "error creating context");
return 2;
}
memset(ctx, 0, sizeof(t_context));
ctx->context = SSL_CTX_new(method);
if (!ctx->context) {
lua_pushnil(L);
lua_pushfstring(L, "error creating context (%s)",
ERR_reason_error_string(ERR_get_error()));
return 2;
}
ctx->mode = LSEC_MODE_INVALID;
ctx->L = L;
luaL_getmetatable(L, "SSL:Context");
lua_setmetatable(L, -2);
/* No session support */
SSL_CTX_set_session_cache_mode(ctx->context, SSL_SESS_CACHE_OFF);
/* Link LuaSec context with the OpenSSL context */
SSL_CTX_set_app_data(ctx->context, ctx);
return 1;
}
int MaOpenSslConfig::start()
{
const SSL_METHOD *meth;
char *hostName;
if (keyFile == 0) {
mprError(MPR_L, MPR_LOG, "OpenSSL: Cant start SSL: missing key file");
return MPR_ERR_CANT_INITIALIZE;
}
if (certFile == 0) {
mprError(MPR_L, MPR_LOG, "OpenSSL: Cant start SSL: missing certificate file");
return MPR_ERR_CANT_INITIALIZE;
}
//
// Depending on the order in the configuration file, we may get called
// by sslModule::start() before OpenSslModule::start has run. So we
// must initialize here.
//
openSslModule->start();
hostName = host->getName();
if (protocols == MPR_HTTP_PROTO_SSLV2) {
meth = SSLv2_server_method();
} else {
meth = SSLv23_server_method();
}
context = SSL_CTX_new(meth);
mprAssert(context);
if (context == 0) {
mprError(MPR_L, MPR_LOG, "OpenSSL: Unable to create SSL context");
return MPR_ERR_CANT_CREATE;
}
SSL_CTX_set_app_data(context, (void*) this);
SSL_CTX_set_quiet_shutdown(context, 1);
SSL_CTX_sess_set_cache_size(context, 512);
//
// Configure the certificate for this host
//
if (configureCertificates(context, keyFile, certFile) != 0) {
SSL_CTX_free(context);
context = 0;
return MPR_ERR_CANT_INITIALIZE;
}
mprLog(4, "SSL: %s: Using ciphers %s\n", hostName, ciphers);
SSL_CTX_set_cipher_list(context, ciphers);
//
// Configure the client verification certificate locations
//
if (verifyClient) {
if (caFile == 0 && caPath == 0) {
mprError(MPR_L, MPR_LOG,
"OpenSSL: Must define CA certificates if using client verification");
SSL_CTX_free(context);
context = 0;
return MPR_ERR_BAD_STATE;
}
if (caFile || caPath) {
if ((!SSL_CTX_load_verify_locations(context, caFile, caPath)) ||
(!SSL_CTX_set_default_verify_paths(context))) {
mprError(MPR_L, MPR_LOG,
"OpenSSL: Unable to set certificate locations");
SSL_CTX_free(context);
context = 0;
return MPR_ERR_CANT_ACCESS;
}
if (caFile) {
STACK_OF(X509_NAME) *certNames;
certNames = SSL_load_client_CA_file(caFile);
if (certNames == 0) {
} else {
//
// Define the list of CA certificates to send to the client
// before they send their client certificate for validation
//
SSL_CTX_set_client_CA_list(context, certNames);
}
}
}
mprLog(4, "SSL: %s: is verifying client connections\n", hostName);
if (caFile) {
mprLog(4, "SSL: %s: Using certificates from %s\n", hostName,
caFile);
} else if (caPath) {
mprLog(4, "SSL: %s: Using certificates from directory %s\n",
hostName, caPath);
}
SSL_CTX_set_verify(context, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verifyX509Certificate);
SSL_CTX_set_verify_depth(context, verifyDepth);
} else {
SSL_CTX_set_verify(context, SSL_VERIFY_NONE, verifyX509Certificate);
}
//
// Define callbacks
//
SSL_CTX_set_tmp_rsa_callback(context, rsaCallback);
SSL_CTX_set_tmp_dh_callback(context, dhCallback);
//
// Enable all buggy client work-arounds
//
SSL_CTX_set_options(context, SSL_OP_ALL);
#ifdef SSL_OP_NO_TICKET
SSL_CTX_set_options(context, SSL_OP_NO_TICKET);
#endif
#ifdef SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
SSL_CTX_set_options(context, SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
#endif
SSL_CTX_set_mode(context, SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_AUTO_RETRY);
//
// Select the required protocols
//
SSL_CTX_set_options(context, SSL_OP_NO_SSLv2);
if (!(protocols & MPR_HTTP_PROTO_SSLV3)) {
SSL_CTX_set_options(context, SSL_OP_NO_SSLv3);
mprLog(4, "SSL: %s: Disabling SSLv3\n", hostName);
}
if (!(protocols & MPR_HTTP_PROTO_TLSV1)) {
SSL_CTX_set_options(context, SSL_OP_NO_TLSv1);
mprLog(4, "SSL: %s: Disabling TLSv1\n", hostName);
}
//
// Ensure we generate a new private key for each connection
//
SSL_CTX_set_options(context, SSL_OP_SINGLE_DH_USE);
//
// Pre-generate some keys that are slow to compute
//
rsaKey512 = RSA_generate_key(512, RSA_F4, 0, 0);
rsaKey1024 = RSA_generate_key(1024, RSA_F4, 0, 0);
dhKey512 = get_dh512();
dhKey1024 = get_dh1024();
return 0;
}
static void ssl_init_ctx_protocol(server_rec *s,
apr_pool_t *p,
apr_pool_t *ptemp,
modssl_ctx_t *mctx)
{
SSL_CTX *ctx = NULL;
MODSSL_SSL_METHOD_CONST SSL_METHOD *method = NULL;
char *cp;
int protocol = mctx->protocol;
/*
* Create the new per-server SSL context
*/
if (protocol == SSL_PROTOCOL_NONE) {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
"No SSL protocols available [hint: SSLProtocol]");
ssl_die();
}
cp = apr_pstrcat(p,
(protocol & SSL_PROTOCOL_SSLV2 ? "SSLv2, " : ""),
(protocol & SSL_PROTOCOL_SSLV3 ? "SSLv3, " : ""),
(protocol & SSL_PROTOCOL_TLSV1 ? "TLSv1, " : ""),
NULL);
cp[strlen(cp)-2] = NUL;
ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s,
"Creating new SSL context (protocols: %s)", cp);
if (protocol == SSL_PROTOCOL_SSLV2) {
method = mctx->pkp ?
SSLv2_client_method() : /* proxy */
SSLv2_server_method(); /* server */
ctx = SSL_CTX_new(method); /* only SSLv2 is left */
}
else {
method = mctx->pkp ?
SSLv23_client_method() : /* proxy */
SSLv23_server_method(); /* server */
ctx = SSL_CTX_new(method); /* be more flexible */
}
mctx->ssl_ctx = ctx;
SSL_CTX_set_options(ctx, SSL_OP_ALL);
if (!(protocol & SSL_PROTOCOL_SSLV2)) {
SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2);
}
if (!(protocol & SSL_PROTOCOL_SSLV3)) {
SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3);
}
if (!(protocol & SSL_PROTOCOL_TLSV1)) {
SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1);
}
#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
{
SSLSrvConfigRec *sc = mySrvConfig(s);
if (sc->cipher_server_pref == TRUE) {
SSL_CTX_set_options(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
}
}
#endif
SSL_CTX_set_app_data(ctx, s);
/*
* Configure additional context ingredients
*/
SSL_CTX_set_options(ctx, SSL_OP_SINGLE_DH_USE);
#ifdef SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
/*
* Disallow a session from being resumed during a renegotiation,
* so that an acceptable cipher suite can be negotiated.
*/
SSL_CTX_set_options(ctx, SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
#endif
}
static struct mailstream_ssl_data * ssl_data_new_full(int fd, time_t timeout,
SSL_METHOD * method, void (* callback)(struct mailstream_ssl_context * ssl_context, void * cb_data),
void * cb_data)
{
struct mailstream_ssl_data * ssl_data;
SSL * ssl_conn;
int r;
SSL_CTX * tmp_ctx;
struct mailstream_cancel * cancel;
struct mailstream_ssl_context * ssl_context = NULL;
mailstream_ssl_init();
tmp_ctx = SSL_CTX_new(method);
if (tmp_ctx == NULL)
goto err;
if (callback != NULL) {
ssl_context = mailstream_ssl_context_new(tmp_ctx, fd);
callback(ssl_context, cb_data);
}
SSL_CTX_set_app_data(tmp_ctx, ssl_context);
SSL_CTX_set_client_cert_cb(tmp_ctx, mailstream_openssl_client_cert_cb);
ssl_conn = (SSL *) SSL_new(tmp_ctx);
if (ssl_conn == NULL)
goto free_ctx;
if (SSL_set_fd(ssl_conn, fd) == 0)
goto free_ssl_conn;
again:
r = SSL_connect(ssl_conn);
switch(SSL_get_error(ssl_conn, r)) {
case SSL_ERROR_WANT_READ:
r = wait_SSL_connect(fd, 1, timeout);
if (r < 0)
goto free_ssl_conn;
else
goto again;
break;
case SSL_ERROR_WANT_WRITE:
r = wait_SSL_connect(fd, 0, timeout);
if (r < 0)
goto free_ssl_conn;
else
goto again;
break;
}
if (r <= 0)
goto free_ssl_conn;
cancel = mailstream_cancel_new();
if (cancel == NULL)
goto free_ssl_conn;
r = mailstream_prepare_fd(fd);
if (r < 0)
goto free_cancel;
ssl_data = malloc(sizeof(* ssl_data));
if (ssl_data == NULL)
goto free_cancel;
ssl_data->fd = fd;
ssl_data->ssl_conn = ssl_conn;
ssl_data->ssl_ctx = tmp_ctx;
ssl_data->cancel = cancel;
mailstream_ssl_context_free(ssl_context);
return ssl_data;
free_cancel:
mailstream_cancel_free(cancel);
free_ssl_conn:
SSL_free(ssl_conn);
free_ctx:
SSL_CTX_free(tmp_ctx);
mailstream_ssl_context_free(ssl_context);
err:
return NULL;
}
static struct mailstream_ssl_data * ssl_data_new_full(int fd, time_t timeout,
const SSL_METHOD * method, void (* callback)(struct mailstream_ssl_context * ssl_context, void * cb_data),
void * cb_data)
{
struct mailstream_ssl_data * ssl_data;
SSL * ssl_conn;
int r;
SSL_CTX * tmp_ctx;
struct mailstream_cancel * cancel;
struct mailstream_ssl_context * ssl_context = NULL;
#if SSL_MODE_RELEASE_BUFFERS
long mode = 0;
#endif
mailstream_ssl_init();
tmp_ctx = SSL_CTX_new(method);
if (tmp_ctx == NULL)
goto err;
if (callback != NULL) {
ssl_context = mailstream_ssl_context_new(tmp_ctx, fd);
callback(ssl_context, cb_data);
}
SSL_CTX_set_app_data(tmp_ctx, ssl_context);
SSL_CTX_set_client_cert_cb(tmp_ctx, mailstream_openssl_client_cert_cb);
ssl_conn = (SSL *) SSL_new(tmp_ctx);
#if SSL_MODE_RELEASE_BUFFERS
mode = SSL_get_mode(ssl_conn);
SSL_set_mode(ssl_conn, mode | SSL_MODE_RELEASE_BUFFERS);
#endif
if (ssl_conn == NULL)
goto free_ctx;
#if (OPENSSL_VERSION_NUMBER >= 0x10000000L)
if (ssl_context != NULL && ssl_context->server_name != NULL) {
SSL_set_tlsext_host_name(ssl_conn, ssl_context->server_name);
free(ssl_context->server_name);
ssl_context->server_name = NULL;
}
#endif /* (OPENSSL_VERSION_NUMBER >= 0x10000000L) */
if (SSL_set_fd(ssl_conn, fd) == 0)
goto free_ssl_conn;
again:
r = SSL_connect(ssl_conn);
switch(SSL_get_error(ssl_conn, r)) {
case SSL_ERROR_WANT_READ:
r = wait_SSL_connect(fd, 1, timeout);
if (r < 0)
goto free_ssl_conn;
else
goto again;
break;
case SSL_ERROR_WANT_WRITE:
r = wait_SSL_connect(fd, 0, timeout);
if (r < 0)
goto free_ssl_conn;
else
goto again;
break;
}
if (r <= 0)
goto free_ssl_conn;
cancel = mailstream_cancel_new();
if (cancel == NULL)
goto free_ssl_conn;
r = mailstream_prepare_fd(fd);
if (r < 0)
goto free_cancel;
ssl_data = malloc(sizeof(* ssl_data));
if (ssl_data == NULL)
goto free_cancel;
ssl_data->fd = fd;
ssl_data->ssl_conn = ssl_conn;
ssl_data->ssl_ctx = tmp_ctx;
ssl_data->cancel = cancel;
mailstream_ssl_context_free(ssl_context);
return ssl_data;
free_cancel:
mailstream_cancel_free(cancel);
free_ssl_conn:
SSL_free(ssl_conn);
free_ctx:
SSL_CTX_free(tmp_ctx);
mailstream_ssl_context_free(ssl_context);
err:
return NULL;
}
static int openssl_ssl_ctx_new(lua_State*L)
{
const char* meth = luaL_optstring(L, 1, "TLSv1");
#if OPENSSL_VERSION_NUMBER >= 0x01000000L
const
#endif
SSL_METHOD* method = NULL;
const char* ciphers;
SSL_CTX* ctx;
if (strcmp(meth, "SSLv3") == 0)
method = SSLv3_method(); /* SSLv3 */
else if (strcmp(meth, "SSLv3_server") == 0)
method = SSLv3_server_method(); /* SSLv3 */
else if (strcmp(meth, "SSLv3_client") == 0)
method = SSLv3_client_method(); /* SSLv3 */
else if (strcmp(meth, "SSLv23") == 0)
method = SSLv23_method(); /* SSLv3 but can rollback to v2 */
else if (strcmp(meth, "SSLv23_server") == 0)
method = SSLv23_server_method(); /* SSLv3 but can rollback to v2 */
else if (strcmp(meth, "SSLv23_client") == 0)
method = SSLv23_client_method(); /* SSLv3 but can rollback to v2 */
else if (strcmp(meth, "TLSv1_1") == 0)
method = TLSv1_1_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1_1_server") == 0)
method = TLSv1_1_server_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1_1_client") == 0)
method = TLSv1_1_client_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1_2") == 0)
method = TLSv1_2_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1_2_server") == 0)
method = TLSv1_2_server_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1_2_client") == 0)
method = TLSv1_2_client_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1") == 0)
method = TLSv1_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1_server") == 0)
method = TLSv1_server_method(); /* TLSv1.0 */
else if (strcmp(meth, "TLSv1_client") == 0)
method = TLSv1_client_method(); /* TLSv1.0 */
else if (strcmp(meth, "DTLSv1") == 0)
method = DTLSv1_method(); /* DTLSv1.0 */
else if (strcmp(meth, "DTLSv1_server") == 0)
method = DTLSv1_server_method(); /* DTLSv1.0 */
else if (strcmp(meth, "DTLSv1_client") == 0)
method = DTLSv1_client_method(); /* DTLSv1.0 */
#ifndef OPENSSL_NO_SSL2
#if OPENSSL_VERSION_NUMBER < 0x10100000L
else if (strcmp(meth, "SSLv2") == 0)
method = SSLv2_method(); /* SSLv2 */
else if (strcmp(meth, "SSLv2_server") == 0)
method = SSLv2_server_method(); /* SSLv2 */
else if (strcmp(meth, "SSLv2_client") == 0)
method = SSLv2_client_method();
#endif
#ifdef LOAD_SSL_CUSTOM
LOAD_SSL_CUSTOM
#endif
#endif
else
luaL_error(L, "#1:%s not supported\n"
"Maybe SSLv3 SSLv23 TLSv1 TLSv1_1 TLSv1_2 DTLSv1 [SSLv2], option followed by _client or _server\n",
"default is SSLv3",
meth);
ciphers = luaL_optstring(L, 2, SSL_DEFAULT_CIPHER_LIST);
ctx = SSL_CTX_new(method);
if (!ctx)
luaL_error(L, "#1:%s not supported\n"
"Maybe SSLv3 SSLv23 TLSv1 TLSv1_1 TLSv1_2 DTLSv1 [SSLv2], option followed by _client or _server\n",
"default is SSLv3",
meth);
openssl_newvalue(L, ctx);
SSL_CTX_set_cipher_list(ctx, ciphers);
PUSH_OBJECT(ctx, "openssl.ssl_ctx");
SSL_CTX_set_app_data(ctx, L);
return 1;
}
static CURLcode sslctxfun(CURL* curl, void* sslctx, void* parm)
{
SSL_CTX_set_app_data(reinterpret_cast<SSL_CTX*>(sslctx), parm);
SSL_CTX_set_verify(reinterpret_cast<SSL_CTX*>(sslctx), SSL_VERIFY_PEER, certVerifyCallback);
return CURLE_OK;
}
/*
Create and initialize an SSL configuration for a route. This configuration is used by all requests for
a given route. An application can have different SSL configurations for different routes. There is also
a default SSL configuration that is used when a route does not define a configuration and one for clients.
*/
static int configOss(MprSsl *ssl, int flags, char **errorMsg)
{
OpenConfig *cfg;
X509_STORE *store;
SSL_CTX *ctx;
cchar *key;
uchar resume[16];
int verifyMode;
assert(ssl);
if (ssl->config && !ssl->changed) {
return 0;
}
if ((ssl->config = mprAllocObj(OpenConfig, manageOpenConfig)) == 0) {
return MPR_ERR_MEMORY;
}
cfg = ssl->config;
if ((ctx = SSL_CTX_new(SSLv23_method())) == 0) {
mprLog("error openssl", 0, "Unable to create SSL context");
return MPR_ERR_CANT_INITIALIZE;
}
SSL_CTX_set_app_data(ctx, (void*) ssl);
if (ssl->verifyPeer && !(ssl->caFile || ssl->caPath)) {
*errorMsg = sfmt("Cannot verify peer due to undefined CA certificates");
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
/*
Configure the certificates
*/
if (ssl->certFile) {
if (setCertFile(ctx, ssl->certFile) < 0) {
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
key = (ssl->keyFile == 0) ? ssl->certFile : ssl->keyFile;
if (key) {
if (setKeyFile(ctx, key) < 0) {
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
if (!SSL_CTX_check_private_key(ctx)) {
mprLog("error openssl", 0, "Check of private key file failed: %s", key);
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
}
}
if (ssl->ciphers) {
ssl->ciphers = mapCipherNames(ssl->ciphers);
}
if (!ssl->ciphers && (flags & MPR_SOCKET_SERVER)) {
ssl->ciphers = sclone(OPENSSL_DEFAULT_CIPHERS);
}
if (ssl->ciphers) {
mprLog("info openssl", 5, "Using SSL ciphers: %s", ssl->ciphers);
if (SSL_CTX_set_cipher_list(ctx, ssl->ciphers) != 1) {
*errorMsg = sfmt("Unable to set cipher list \"%s\"", ssl->ciphers);
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
}
verifyMode = ssl->verifyPeer ? SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT : SSL_VERIFY_NONE;
if (verifyMode != SSL_VERIFY_NONE) {
if (!(ssl->caFile || ssl->caPath)) {
*errorMsg = sclone("No defined certificate authority file");
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
if ((!SSL_CTX_load_verify_locations(ctx, (char*) ssl->caFile, (char*) ssl->caPath)) ||
(!SSL_CTX_set_default_verify_paths(ctx))) {
*errorMsg = sfmt("Unable to set certificate locations: %s: %s", ssl->caFile, ssl->caPath);
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
if (ssl->caFile) {
STACK_OF(X509_NAME) *certNames;
certNames = SSL_load_client_CA_file(ssl->caFile);
if (certNames) {
/*
Define the list of CA certificates to send to the client
before they send their client certificate for validation
*/
SSL_CTX_set_client_CA_list(ctx, certNames);
}
}
store = SSL_CTX_get_cert_store(ctx);
if (ssl->revoke && !X509_STORE_load_locations(store, ssl->revoke, 0)) {
mprLog("error openssl", 0, "Cannot load certificate revoke list: %s", ssl->revoke);
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
if (flags & MPR_SOCKET_SERVER) {
SSL_CTX_set_verify_depth(ctx, ssl->verifyDepth);
}
}
/*
Define callbacks
*/
SSL_CTX_set_verify(ctx, verifyMode, verifyPeerCertificate);
if (flags & MPR_SOCKET_SERVER) {
SSL_CTX_set_tlsext_servername_callback(ctx, sniHostname);
}
/*
Configure DH parameters
*/
SSL_CTX_set_tmp_dh_callback(ctx, dhcallback);
cfg->dhKey = getDhKey();
/*
Define default OpenSSL options
Ensure we generate a new private key for each connection
Disable SSLv2 and SSLv3 by default -- they are insecure.
*/
cfg->setFlags = SSL_OP_ALL | SSL_OP_SINGLE_DH_USE | SSL_OP_SINGLE_ECDH_USE | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3;
#ifdef SSL_OP_NO_TLSv1
if (!(ssl->protocols & MPR_PROTO_TLSV1)) {
cfg->setFlags |= SSL_OP_NO_TLSv1;
}
#endif
#ifdef SSL_OP_NO_TLSv1_1
if (!(ssl->protocols & MPR_PROTO_TLSV1_1)) {
cfg->setFlags |= SSL_OP_NO_TLSv1_1;
}
#endif
#ifdef SSL_OP_NO_TLSv1_2
if (!(ssl->protocols & MPR_PROTO_TLSV1_2)) {
cfg->setFlags |= SSL_OP_NO_TLSv1_2;
}
#endif
#ifdef SSL_OP_MSIE_SSLV2_RSA_PADDING
cfg->setFlags |= SSL_OP_MSIE_SSLV2_RSA_PADDING;
#endif
#if defined(SSL_OP_NO_TICKET)
/*
Ticket based session reuse is enabled by default
*/
#if defined(ME_MPR_SSL_TICKET)
if (ME_MPR_SSL_TICKET) {
cfg->clearFlags |= SSL_OP_NO_TICKET;
} else {
cfg->setFlags |= SSL_OP_NO_TICKET;
}
#else
cfg->clearFlags |= SSL_OP_NO_TICKET;
#endif
#endif
#if defined(SSL_OP_NO_COMPRESSION)
/*
CRIME attack targets compression
*/
cfg->clearFlags |= SSL_OP_NO_COMPRESSION;
#endif
#if defined(SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION)
/*
Force a new session on renegotiation. Default to true.
This is required when using SNI and changing context during the SSL hello
*/
#if defined(ME_MPR_SSL_RENEGOTIATE)
if (ME_MPR_SSL_RENEGOTIATE) {
cfg->clearFlags |= SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION;
} else {
cfg->setFlags |= SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION;
}
#else
cfg->setFlags |= SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION;
#endif
#endif
#if defined(SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
/*
Disables a countermeasure against a SSL 3.0/TLS 1.0 protocol vulnerability affecting CBC ciphers.
Defaults to true.
*/
#if defined(ME_MPR_SSL_EMPTY_FRAGMENTS)
if (ME_MPR_SSL_EMPTY_FRAGMENTS) {
/* SSL_OP_ALL disables empty fragments. Only needed for ancient browsers like IE-6 on SSL-3.0/TLS-1.0 */
cfg->clearFlags |= SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
} else {
cfg->setFlags |= SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
}
#else
cfg->setFlags |= SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
#endif
#endif
/*
Define a session reuse context
*/
RAND_bytes(resume, sizeof(resume));
SSL_CTX_set_session_id_context(ctx, resume, sizeof(resume));
/*
Elliptic Curve initialization
*/
#if SSL_OP_SINGLE_ECDH_USE
#ifdef SSL_CTX_set_ecdh_auto
/* This is supported in OpenSSL 1.0.2 */
SSL_CTX_set_ecdh_auto(ctx, 1);
#else
{
EC_KEY *ecdh;
cchar *name;
int nid;
name = ME_MPR_SSL_CURVE;
if ((nid = OBJ_sn2nid(name)) == 0) {
*errorMsg = sfmt("Unknown curve name \"%s\"", name);
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
if ((ecdh = EC_KEY_new_by_curve_name(nid)) == 0) {
*errorMsg = sfmt("Unable to create curve \"%s\"", name);
SSL_CTX_free(ctx);
return MPR_ERR_CANT_INITIALIZE;
}
SSL_CTX_set_tmp_ecdh(ctx, ecdh);
EC_KEY_free(ecdh);
}
#endif
#endif
SSL_CTX_set_mode(ctx, SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_AUTO_RETRY | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
#ifdef SSL_MODE_RELEASE_BUFFERS
SSL_CTX_set_mode(ctx, SSL_MODE_RELEASE_BUFFERS);
#endif
#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
SSL_CTX_set_mode(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE);
#endif
#if defined(ME_MPR_SSL_CACHE)
/*
Set the number of sessions supported. Default in OpenSSL is 20K.
*/
SSL_CTX_sess_set_cache_size(ctx, ME_MPR_SSL_CACHE);
#else
SSL_CTX_sess_set_cache_size(ctx, 1024);
#endif
SSL_CTX_set_options(ctx, cfg->setFlags);
SSL_CTX_clear_options(ctx, cfg->clearFlags);
cfg->ctx = ctx;
ssl->changed = 0;
ssl->config = cfg;
return 0;
}
int
evhtp_ssl_init(evhtp * htp, evhtp_ssl_cfg * cfg) {
long cache_mode;
evhtp_ssl_scache_init init_cb = NULL;
evhtp_ssl_scache_add add_cb = NULL;
evhtp_ssl_scache_get get_cb = NULL;
evhtp_ssl_scache_del del_cb = NULL;
if (cfg == NULL || htp == NULL || cfg->pemfile == NULL) {
return -1;
}
SSL_library_init();
SSL_load_error_strings();
RAND_poll();
STACK_OF(SSL_COMP) * comp_methods = SSL_COMP_get_compression_methods();
sk_SSL_COMP_zero(comp_methods);
htp->ssl_cfg = cfg;
htp->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
#if OPENSSL_VERSION_NUMBER >= 0x10000000L
SSL_CTX_set_options(htp->ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
SSL_CTX_set_timeout(htp->ssl_ctx, 60 * 60 * 48);
#endif
SSL_CTX_set_options(htp->ssl_ctx, cfg->ssl_opts);
if (cfg->ciphers != NULL) {
SSL_CTX_set_cipher_list(htp->ssl_ctx, cfg->ciphers);
}
SSL_CTX_load_verify_locations(htp->ssl_ctx, cfg->cafile, cfg->capath);
X509_STORE_set_flags(SSL_CTX_get_cert_store(htp->ssl_ctx), cfg->store_flags);
SSL_CTX_set_verify(htp->ssl_ctx, cfg->verify_peer, cfg->x509_verify_cb);
if (cfg->x509_chk_issued_cb != NULL) {
htp->ssl_ctx->cert_store->check_issued = cfg->x509_chk_issued_cb;
}
if (cfg->verify_depth) {
SSL_CTX_set_verify_depth(htp->ssl_ctx, cfg->verify_depth);
}
switch (cfg->scache_type) {
case evhtp_ssl_scache_type_disabled:
cache_mode = SSL_SESS_CACHE_OFF;
break;
case evhtp_ssl_scache_type_user:
cache_mode = SSL_SESS_CACHE_SERVER |
SSL_SESS_CACHE_NO_INTERNAL |
SSL_SESS_CACHE_NO_INTERNAL_LOOKUP;
init_cb = cfg->scache_init;
add_cb = cfg->scache_add;
get_cb = cfg->scache_get;
del_cb = cfg->scache_del;
break;
case evhtp_ssl_scache_type_builtin:
cache_mode = SSL_SESS_CACHE_SERVER |
SSL_SESS_CACHE_NO_INTERNAL |
SSL_SESS_CACHE_NO_INTERNAL_LOOKUP;
#if 0
init_cb = _evhtp_ssl_builtin_init;
add_cb = _evhtp_ssl_builtin_add;
get_cb = _evhtp_ssl_builtin_get;
del_cb = _evhtp_ssl_builtin_del;
#endif
break;
case evhtp_ssl_scache_type_internal:
default:
cache_mode = SSL_SESS_CACHE_SERVER;
break;
} /* switch */
SSL_CTX_use_certificate_file(htp->ssl_ctx, cfg->pemfile, SSL_FILETYPE_PEM);
SSL_CTX_use_PrivateKey_file(htp->ssl_ctx, cfg->privfile ? cfg->privfile: cfg->pemfile, SSL_FILETYPE_PEM);
SSL_CTX_set_session_id_context(htp->ssl_ctx,
(const unsigned char*)&session_id_context,
sizeof(session_id_context));
SSL_CTX_set_app_data(htp->ssl_ctx, htp);
SSL_CTX_set_session_cache_mode(htp->ssl_ctx, cache_mode);
if (cache_mode != SSL_SESS_CACHE_OFF) {
SSL_CTX_sess_set_cache_size(htp->ssl_ctx,
cfg->scache_size ? cfg->scache_size : 1024);
if (cfg->scache_type == evhtp_ssl_scache_type_builtin ||
cfg->scache_type == evhtp_ssl_scache_type_user) {
SSL_CTX_sess_set_new_cb(htp->ssl_ctx, _evhtp_ssl_add_scache_ent);
SSL_CTX_sess_set_get_cb(htp->ssl_ctx, _evhtp_ssl_get_scache_ent);
SSL_CTX_sess_set_remove_cb(htp->ssl_ctx, _evhtp_ssl_delete_scache_ent);
if (cfg->scache_init) {
cfg->args = (cfg->scache_init)(htp);
}
}
}
return 0;
} /* evhtp_use_ssl */
int BSslBindServer(BSOCK_HANDLE hBSock, SslServerBind const *pSSLB,
int (*pfEnvCB)(void *, int, void const *), void *pPrivate)
{
int iError;
SYS_SOCKET SockFD;
SSL_METHOD const *pMethod;
SSL_CTX *pSCtx;
SSL *pSSL;
X509 *pCert;
SslBindCtx *pCtx;
pMethod = SSLv23_server_method();
if ((pSCtx = SSL_CTX_new((SSL_METHOD *) pMethod)) == NULL) {
ErrSetErrorCode(ERR_SSLCTX_CREATE);
return ERR_SSLCTX_CREATE;
}
SSL_CTX_set_session_cache_mode(pSCtx, SSL_SESS_CACHE_OFF);
if (BSslSetupVerify(pSCtx, pSSLB) < 0) {
SSL_CTX_free(pSCtx);
return ErrGetErrorCode();
}
if ((pSSL = SSL_new(pSCtx)) == NULL) {
SSL_CTX_free(pSCtx);
ErrSetErrorCode(ERR_SSL_CREATE);
return ERR_SSL_CREATE;
}
SockFD = BSckGetAttachedSocket(hBSock);
/*
* We want blocking sockets during the initial SSL negotiation.
*/
SysBlockSocket(SockFD, 1);
SSL_set_fd(pSSL, SockFD);
if (SSL_accept(pSSL) == -1) {
SysBlockSocket(SockFD, -1);
SSL_free(pSSL);
SSL_CTX_free(pSCtx);
ErrSetErrorCode(ERR_SSL_ACCEPT);
return ERR_SSL_ACCEPT;
}
SSL_CTX_set_app_data(pSCtx, NULL);
/*
* Client may not supply a certificate.
*/
iError = 0;
if (pfEnvCB != NULL &&
(pCert = SSL_get_peer_certificate(pSSL)) != NULL) {
iError = BSslEnvExport(pSCtx, pSSL, pCert, pfEnvCB, pPrivate);
X509_free(pCert);
}
if (iError < 0 ||
BSslAllocCtx(&pCtx, SockFD, pSCtx, pSSL) < 0) {
ErrorPush();
SysBlockSocket(SockFD, -1);
SSL_free(pSSL);
SSL_CTX_free(pSCtx);
return ErrorPop();
}
/*
* Need to use non-blocking socket to implement read/write timeouts.
*/
SysBlockSocket(SockFD, 0);
BSckSetIOops(hBSock, &pCtx->IOOps);
return 0;
}
/*
Create and initialize an SSL configuration for a route. This configuration is used by all requests for
a given route. An application can have different SSL configurations for different routes. There is also
a default SSL configuration that is used when a route does not define a configuration and one for clients.
*/
static OpenConfig *createOpenSslConfig(MprSocket *sp)
{
MprSsl *ssl;
OpenConfig *cfg;
X509_STORE *store;
SSL_CTX *context;
cchar *key;
uchar resume[16];
int verifyMode;
ssl = sp->ssl;
assert(ssl);
if ((ssl->config = mprAllocObj(OpenConfig, manageOpenConfig)) == 0) {
return 0;
}
cfg = ssl->config;
if ((context = SSL_CTX_new(SSLv23_method())) == 0) {
mprLog("error openssl", 0, "Unable to create SSL context");
return 0;
}
SSL_CTX_set_app_data(context, (void*) ssl);
if (ssl->verifyPeer && !(ssl->caFile || ssl->caPath)) {
sp->errorMsg = sfmt("Cannot verify peer due to undefined CA certificates");
SSL_CTX_free(context);
return 0;
}
/*
Configure the certificates
*/
if (ssl->certFile) {
if (SSL_CTX_use_certificate_chain_file(context, ssl->certFile) <= 0) {
if (SSL_CTX_use_certificate_file(context, ssl->certFile, SSL_FILETYPE_ASN1) <= 0) {
mprLog("error openssl", 0, "Cannot open certificate file: %s", ssl->certFile);
SSL_CTX_free(context);
return 0;
}
}
key = (ssl->keyFile == 0) ? ssl->certFile : ssl->keyFile;
if (key) {
if (SSL_CTX_use_PrivateKey_file(context, key, SSL_FILETYPE_PEM) <= 0) {
/* attempt ASN1 for self-signed format */
if (SSL_CTX_use_PrivateKey_file(context, key, SSL_FILETYPE_ASN1) <= 0) {
mprLog("error openssl", 0, "Cannot open private key file: %s", key);
SSL_CTX_free(context);
return 0;
}
}
if (!SSL_CTX_check_private_key(context)) {
mprLog("error openssl", 0, "Check of private key file failed: %s", key);
SSL_CTX_free(context);
return 0;
}
}
}
if (ssl->ciphers) {
ssl->ciphers = mapCipherNames(ssl->ciphers);
}
if (!ssl->ciphers && (sp->flags & MPR_SOCKET_SERVER)) {
ssl->ciphers = sclone(OPENSSL_DEFAULT_CIPHERS);
}
if (ssl->ciphers) {
mprLog("info openssl", 5, "Using SSL ciphers: %s", ssl->ciphers);
if (SSL_CTX_set_cipher_list(context, ssl->ciphers) != 1) {
sp->errorMsg = sfmt("Unable to set cipher list \"%s\". %s", ssl->ciphers, getOssError(sp));
SSL_CTX_free(context);
return 0;
}
}
verifyMode = ssl->verifyPeer ? SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT : SSL_VERIFY_NONE;
if (verifyMode != SSL_VERIFY_NONE) {
if (!(ssl->caFile || ssl->caPath)) {
sp->errorMsg = sclone("No defined certificate authority file");
SSL_CTX_free(context);
return 0;
}
if ((!SSL_CTX_load_verify_locations(context, (char*) ssl->caFile, (char*) ssl->caPath)) ||
(!SSL_CTX_set_default_verify_paths(context))) {
sp->errorMsg = sfmt("Unable to set certificate locations: %s: %s", ssl->caFile, ssl->caPath);
SSL_CTX_free(context);
return 0;
}
if (ssl->caFile) {
STACK_OF(X509_NAME) *certNames;
certNames = SSL_load_client_CA_file(ssl->caFile);
if (certNames) {
/*
Define the list of CA certificates to send to the client
before they send their client certificate for validation
*/
SSL_CTX_set_client_CA_list(context, certNames);
}
}
store = SSL_CTX_get_cert_store(context);
if (ssl->revokeList && !X509_STORE_load_locations(store, ssl->revokeList, 0)) {
mprLog("error openssl", 0, "Cannot load certificate revoke list: %s", ssl->revokeList);
SSL_CTX_free(context);
return 0;
}
if (sp->flags & MPR_SOCKET_SERVER) {
SSL_CTX_set_verify_depth(context, ssl->verifyDepth);
}
}
/*
Define callbacks
*/
SSL_CTX_set_verify(context, verifyMode, verifyPeerCertificate);
/*
Configure DH parameters
*/
SSL_CTX_set_tmp_dh_callback(context, dhcallback);
cfg->dhKey = getDhKey();
/*
Define default OpenSSL options
*/
SSL_CTX_set_options(context, SSL_OP_ALL);
/*
Ensure we generate a new private key for each connection
*/
SSL_CTX_set_options(context, SSL_OP_SINGLE_DH_USE);
/*
Define a session reuse context
*/
RAND_bytes(resume, sizeof(resume));
SSL_CTX_set_session_id_context(context, resume, sizeof(resume));
/*
Elliptic Curve initialization
*/
#if SSL_OP_SINGLE_ECDH_USE
#ifdef SSL_CTX_set_ecdh_auto
SSL_CTX_set_ecdh_auto(context, 1);
#else
{
EC_KEY *ecdh;
cchar *name;
int nid;
name = ME_MPR_SSL_CURVE;
if ((nid = OBJ_sn2nid(name)) == 0) {
sp->errorMsg = sfmt("Unknown curve name \"%s\"", name);
SSL_CTX_free(context);
return 0;
}
if ((ecdh = EC_KEY_new_by_curve_name(nid)) == 0) {
sp->errorMsg = sfmt("Unable to create curve \"%s\"", name);
SSL_CTX_free(context);
return 0;
}
SSL_CTX_set_options(context, SSL_OP_SINGLE_ECDH_USE);
SSL_CTX_set_tmp_ecdh(context, ecdh);
EC_KEY_free(ecdh);
}
#endif
#endif
SSL_CTX_set_mode(context, SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_AUTO_RETRY | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
#ifdef SSL_OP_MSIE_SSLV2_RSA_PADDING
SSL_CTX_set_options(context, SSL_OP_MSIE_SSLV2_RSA_PADDING);
#endif
#ifdef SSL_MODE_RELEASE_BUFFERS
SSL_CTX_set_mode(context, SSL_MODE_RELEASE_BUFFERS);
#endif
#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
SSL_CTX_set_mode(context, SSL_OP_CIPHER_SERVER_PREFERENCE);
#endif
/*
Select the required protocols
Disable SSLv2 and SSLv3 by default -- they are insecure.
*/
SSL_CTX_set_options(context, SSL_OP_NO_SSLv2);
SSL_CTX_set_options(context, SSL_OP_NO_SSLv3);
#ifdef SSL_OP_NO_TLSv1
if (!(ssl->protocols & MPR_PROTO_TLSV1)) {
SSL_CTX_set_options(context, SSL_OP_NO_TLSv1);
}
#endif
#ifdef SSL_OP_NO_TLSv1_1
if (!(ssl->protocols & MPR_PROTO_TLSV1_1)) {
SSL_CTX_set_options(context, SSL_OP_NO_TLSv1_1);
}
#endif
#ifdef SSL_OP_NO_TLSv1_2
if (!(ssl->protocols & MPR_PROTO_TLSV1_2)) {
SSL_CTX_set_options(context, SSL_OP_NO_TLSv1_2);
}
#endif
/*
Options set via main.me mpr.ssl.*
*/
#if defined(SSL_OP_NO_TICKET)
/*
Ticket based session reuse is enabled by default
*/
#if defined(ME_MPR_SSL_TICKET)
if (ME_MPR_SSL_TICKET) {
SSL_CTX_clear_options(context, SSL_OP_NO_TICKET);
} else {
SSL_CTX_set_options(context, SSL_OP_NO_TICKET);
}
#else
SSL_CTX_clear_options(context, SSL_OP_NO_TICKET);
#endif
#endif
#if defined(SSL_OP_NO_COMPRESSION)
/*
Use of compression is not secure. Disabled by default.
*/
#if defined(ME_MPR_SSL_COMPRESSION)
if (ME_MPR_SSL_COMPRESSION) {
SSL_CTX_clear_options(context, SSL_OP_NO_COMPRESSION);
} else {
SSL_CTX_set_options(context, SSL_OP_NO_COMPRESSION);
}
#else
/*
CRIME attack targets compression
*/
SSL_CTX_clear_options(context, SSL_OP_NO_COMPRESSION);
#endif
#endif
#if defined(SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION)
/*
Force a new session on renegotiation. Default to true.
*/
#if defined(ME_MPR_SSL_RENEGOTIATE)
if (ME_MPR_SSL_RENEGOTIATE) {
SSL_CTX_clear_options(context, SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
} else {
SSL_CTX_set_options(context, SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
}
#else
SSL_CTX_set_options(context, SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION);
#endif
#endif
#if defined(SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)
/*
Disables a countermeasure against a SSL 3.0/TLS 1.0 protocol vulnerability affecting CBC ciphers.
Defaults to true.
*/
#if defined(ME_MPR_SSL_EMPTY_FRAGMENTS)
if (ME_MPR_SSL_EMPTY_FRAGMENTS) {
/* SSL_OP_ALL disables empty fragments. Only needed for ancient browsers like IE-6 on SSL-3.0/TLS-1.0 */
SSL_CTX_clear_options(context, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
} else {
SSL_CTX_set_options(context, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
}
#else
SSL_CTX_set_options(context, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
#endif
#endif
#if defined(ME_MPR_SSL_CACHE)
/*
Set the number of sessions supported. Default in OpenSSL is 20K.
*/
SSL_CTX_sess_set_cache_size(context, ME_MPR_SSL_CACHE);
#else
SSL_CTX_sess_set_cache_size(context, 1024);
#endif
cfg->context = context;
return cfg;
}
