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/* Copyright 2001-2005 The Apache Software Foundation or its licensors, as
* applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* _ _
* _ __ ___ ___ __| | ___ ___| | mod_ssl
* | '_ ` _ \ / _ \ / _` | / __/ __| | Apache Interface to OpenSSL
* | | | | | | (_) | (_| | \__ \__ \ |
* |_| |_| |_|\___/ \__,_|___|___/___/_|
* |_____|
* ssl_scache.c
* Session Cache Abstraction
*/
/* ``Open-Source Software: generous
programmers from around the world all
join forces to help you shoot
yourself in the foot for free.''
-- Unknown */
#include "ssl_private.h"
#include "mod_status.h"
/* _________________________________________________________________
**
** Session Cache: Common Abstraction Layer
** _________________________________________________________________
*/
void ssl_scache_init(server_rec *s, apr_pool_t *p)
{
SSLModConfigRec *mc = myModConfig(s);
/*
* Warn the user that he should use the session cache.
* But we can operate without it, of course.
*/
if (mc->nSessionCacheMode == SSL_SCMODE_UNSET) {
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
"Init: Session Cache is not configured "
"[hint: SSLSessionCache]");
mc->nSessionCacheMode = SSL_SCMODE_NONE;
return;
}
if (mc->nSessionCacheMode == SSL_SCMODE_DBM)
ssl_scache_dbm_init(s, p);
#ifdef HAVE_DISTCACHE
else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
ssl_scache_dc_init(s, p);
#endif
else if (mc->nSessionCacheMode == SSL_SCMODE_SHMCB) {
void *data;
const char *userdata_key = "ssl_scache_init";
apr_pool_userdata_get(&data, userdata_key, s->process->pool);
if (!data) {
apr_pool_userdata_set((const void *)1, userdata_key,
apr_pool_cleanup_null, s->process->pool);
return;
}
ssl_scache_shmcb_init(s, p);
}
}
void ssl_scache_kill(server_rec *s)
{
SSLModConfigRec *mc = myModConfig(s);
if (mc->nSessionCacheMode == SSL_SCMODE_DBM)
ssl_scache_dbm_kill(s);
else if (mc->nSessionCacheMode == SSL_SCMODE_SHMCB)
ssl_scache_shmcb_kill(s);
#ifdef HAVE_DISTCACHE
else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
ssl_scache_dc_kill(s);
#endif
return;
}
BOOL ssl_scache_store(server_rec *s, UCHAR *id, int idlen, time_t expiry, SSL_SESSION *sess)
{
SSLModConfigRec *mc = myModConfig(s);
BOOL rv = FALSE;
if (mc->nSessionCacheMode == SSL_SCMODE_DBM)
rv = ssl_scache_dbm_store(s, id, idlen, expiry, sess);
else if (mc->nSessionCacheMode == SSL_SCMODE_SHMCB)
rv = ssl_scache_shmcb_store(s, id, idlen, expiry, sess);
#ifdef HAVE_DISTCACHE
else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
rv = ssl_scache_dc_store(s, id, idlen, expiry, sess);
#endif
return rv;
}
SSL_SESSION *ssl_scache_retrieve(server_rec *s, UCHAR *id, int idlen)
{
SSLModConfigRec *mc = myModConfig(s);
SSL_SESSION *sess = NULL;
if (mc->nSessionCacheMode == SSL_SCMODE_DBM)
sess = ssl_scache_dbm_retrieve(s, id, idlen);
else if (mc->nSessionCacheMode == SSL_SCMODE_SHMCB)
sess = ssl_scache_shmcb_retrieve(s, id, idlen);
#ifdef HAVE_DISTCACHE
else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
sess = ssl_scache_dc_retrieve(s, id, idlen);
#endif
return sess;
}
void ssl_scache_remove(server_rec *s, UCHAR *id, int idlen)
{
SSLModConfigRec *mc = myModConfig(s);
if (mc->nSessionCacheMode == SSL_SCMODE_DBM)
ssl_scache_dbm_remove(s, id, idlen);
else if (mc->nSessionCacheMode == SSL_SCMODE_SHMCB)
ssl_scache_shmcb_remove(s, id, idlen);
#ifdef HAVE_DISTCACHE
else if (mc->nSessionCacheMode == SSL_SCMODE_DC)
ssl_scache_dc_remove(s, id, idlen);
#endif
return;
}
/* _________________________________________________________________
**
** SSL Extension to mod_status
** _________________________________________________________________
*/
static int ssl_ext_status_hook(request_rec *r, int flags)
{
SSLSrvConfigRec *sc = mySrvConfig(r->server);
if (sc == NULL || flags & AP_STATUS_SHORT)
return OK;
ap_rputs("<hr>\n", r);
ap_rputs("<table cellspacing=0 cellpadding=0>\n", r);
ap_rputs("<tr><td bgcolor=\"#000000\">\n", r);
ap_rputs("<b><font color=\"#ffffff\" face=\"Arial,Helvetica\">SSL/TLS Session Cache Status:</font></b>\r", r);
ap_rputs("</td></tr>\n", r);
ap_rputs("<tr><td bgcolor=\"#ffffff\">\n", r);
if (sc->mc->nSessionCacheMode == SSL_SCMODE_DBM)
ssl_scache_dbm_status(r, flags, r->pool);
else if (sc->mc->nSessionCacheMode == SSL_SCMODE_SHMCB)
ssl_scache_shmcb_status(r, flags, r->pool);
#ifdef HAVE_DISTCACHE
else if (sc->mc->nSessionCacheMode == SSL_SCMODE_DC)
ssl_scache_dc_status(r, flags, r->pool);
#endif
ap_rputs("</td></tr>\n", r);
ap_rputs("</table>\n", r);
return OK;
}
void ssl_scache_status_register(apr_pool_t *p)
{
APR_OPTIONAL_HOOK(ap, status_hook, ssl_ext_status_hook, NULL, NULL,
APR_HOOK_MIDDLE);
}
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