/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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_engine_config.c
* Apache Configuration Directives
*/
/* ``Damned if you do,
damned if you don't.''
-- Unknown */
#include "ssl_private.h"
#include "util_mutex.h"
#include "ap_provider.h"
/* _________________________________________________________________
**
** Support for Global Configuration
** _________________________________________________________________
*/
#define SSL_MOD_CONFIG_KEY "ssl_module"
SSLModConfigRec *ssl_config_global_create(server_rec *s)
{
apr_pool_t *pool = s->process->pool;
SSLModConfigRec *mc;
void *vmc;
apr_pool_userdata_get(&vmc, SSL_MOD_CONFIG_KEY, pool);
if (vmc) {
return vmc; /* reused for lifetime of the server */
}
/*
* allocate an own subpool which survives server restarts
*/
mc = (SSLModConfigRec *)apr_palloc(pool, sizeof(*mc));
mc->pPool = pool;
mc->bFixed = FALSE;
/*
* initialize per-module configuration
*/
mc->sesscache_mode = SSL_SESS_CACHE_OFF;
mc->sesscache = NULL;
mc->pMutex = NULL;
mc->aRandSeed = apr_array_make(pool, 4,
sizeof(ssl_randseed_t));
mc->tVHostKeys = apr_hash_make(pool);
mc->tPrivateKey = apr_hash_make(pool);
#if defined(HAVE_OPENSSL_ENGINE_H) && defined(HAVE_ENGINE_INIT)
mc->szCryptoDevice = NULL;
#endif
#ifdef HAVE_OCSP_STAPLING
mc->stapling_cache = NULL;
mc->stapling_cache_mutex = NULL;
mc->stapling_refresh_mutex = NULL;
#endif
apr_pool_userdata_set(mc, SSL_MOD_CONFIG_KEY,
apr_pool_cleanup_null,
pool);
return mc;
}
void ssl_config_global_fix(SSLModConfigRec *mc)
{
mc->bFixed = TRUE;
}
BOOL ssl_config_global_isfixed(SSLModConfigRec *mc)
{
return mc->bFixed;
}
/* _________________________________________________________________
**
** Configuration handling
** _________________________________________________________________
*/
#ifdef HAVE_SSL_CONF_CMD
static apr_status_t modssl_ctx_config_cleanup(void *ctx)
{
SSL_CONF_CTX_free(ctx);
return APR_SUCCESS;
}
#endif
static void modssl_ctx_init(modssl_ctx_t *mctx, apr_pool_t *p)
{
mctx->sc = NULL; /* set during module init */
mctx->ssl_ctx = NULL; /* set during module init */
mctx->pks = NULL;
mctx->pkp = NULL;
#ifdef HAVE_TLS_SESSION_TICKETS
mctx->ticket_key = NULL;
#endif
mctx->protocol = SSL_PROTOCOL_DEFAULT;
mctx->protocol_set = 0;
mctx->pphrase_dialog_type = SSL_PPTYPE_UNSET;
mctx->pphrase_dialog_path = NULL;
mctx->cert_chain = NULL;
mctx->crl_path = NULL;
mctx->crl_file = NULL;
mctx->crl_check_mask = UNSET;
mctx->auth.ca_cert_path = NULL;
mctx->auth.ca_cert_file = NULL;
mctx->auth.cipher_suite = NULL;
mctx->auth.verify_depth = UNSET;
mctx->auth.verify_mode = SSL_CVERIFY_UNSET;
mctx->auth.tls13_ciphers = NULL;
mctx->ocsp_mask = UNSET;
mctx->ocsp_force_default = UNSET;
mctx->ocsp_responder = NULL;
mctx->ocsp_resptime_skew = UNSET;
mctx->ocsp_resp_maxage = UNSET;
mctx->ocsp_responder_timeout = UNSET;
mctx->ocsp_use_request_nonce = UNSET;
mctx->proxy_uri = NULL;
/* Set OCSP Responder Certificate Verification variable */
mctx->ocsp_noverify = UNSET;
/* Set OCSP Responder File variables */
mctx->ocsp_verify_flags = 0;
mctx->ocsp_certs_file = NULL;
mctx->ocsp_certs = NULL;
#ifdef HAVE_OCSP_STAPLING
mctx->stapling_enabled = UNSET;
mctx->stapling_resptime_skew = UNSET;
mctx->stapling_resp_maxage = UNSET;
mctx->stapling_cache_timeout = UNSET;
mctx->stapling_return_errors = UNSET;
mctx->stapling_fake_trylater = UNSET;
mctx->stapling_errcache_timeout = UNSET;
mctx->stapling_responder_timeout = UNSET;
mctx->stapling_force_url = NULL;
#endif
#ifdef HAVE_SRP
mctx->srp_vfile = NULL;
mctx->srp_unknown_user_seed = NULL;
mctx->srp_vbase = NULL;
#endif
#ifdef HAVE_SSL_CONF_CMD
mctx->ssl_ctx_config = SSL_CONF_CTX_new();
apr_pool_cleanup_register(p, mctx->ssl_ctx_config,
modssl_ctx_config_cleanup,
apr_pool_cleanup_null);
SSL_CONF_CTX_set_flags(mctx->ssl_ctx_config, SSL_CONF_FLAG_FILE);
SSL_CONF_CTX_set_flags(mctx->ssl_ctx_config, SSL_CONF_FLAG_SERVER);
SSL_CONF_CTX_set_flags(mctx->ssl_ctx_config, SSL_CONF_FLAG_CERTIFICATE);
mctx->ssl_ctx_param = apr_array_make(p, 5, sizeof(ssl_ctx_param_t));
#endif
mctx->ssl_check_peer_cn = UNSET;
mctx->ssl_check_peer_name = UNSET;
mctx->ssl_check_peer_expire = UNSET;
}
static void modssl_ctx_init_server(SSLSrvConfigRec *sc,
apr_pool_t *p)
{
modssl_ctx_t *mctx;
mctx = sc->server = apr_palloc(p, sizeof(*sc->server));
modssl_ctx_init(mctx, p);
mctx->pks = apr_pcalloc(p, sizeof(*mctx->pks));
mctx->pks->cert_files = apr_array_make(p, 3, sizeof(char *));
mctx->pks->key_files = apr_array_make(p, 3, sizeof(char *));
#ifdef HAVE_TLS_SESSION_TICKETS
mctx->ticket_key = apr_pcalloc(p, sizeof(*mctx->ticket_key));
#endif
}
static SSLSrvConfigRec *ssl_config_server_new(apr_pool_t *p)
{
SSLSrvConfigRec *sc = apr_palloc(p, sizeof(*sc));
sc->mc = NULL;
sc->enabled = SSL_ENABLED_UNSET;
sc->vhost_id = NULL; /* set during module init */
sc->vhost_id_len = 0; /* set during module init */
sc->session_cache_timeout = UNSET;
sc->cipher_server_pref = UNSET;
sc->insecure_reneg = UNSET;
#ifdef HAVE_TLSEXT
sc->strict_sni_vhost_check = SSL_ENABLED_UNSET;
#endif
#ifdef HAVE_FIPS
sc->fips = UNSET;
#endif
#ifndef OPENSSL_NO_COMP
sc->compression = UNSET;
#endif
sc->session_tickets = UNSET;
modssl_ctx_init_server(sc, p);
return sc;
}
/*
* Create per-server SSL configuration
*/
void *ssl_config_server_create(apr_pool_t *p, server_rec *s)
{
SSLSrvConfigRec *sc = ssl_config_server_new(p);
sc->mc = ssl_config_global_create(s);
return sc;
}
#define cfgMerge(el,unset) mrg->el = (add->el == (unset)) ? base->el : add->el
#define cfgMergeArray(el) mrg->el = apr_array_append(p, base->el, add->el)
#define cfgMergeString(el) cfgMerge(el, NULL)
#define cfgMergeBool(el) cfgMerge(el, UNSET)
#define cfgMergeInt(el) cfgMerge(el, UNSET)
/*
* Merge per-server SSL configurations
*/
static void modssl_ctx_cfg_merge(apr_pool_t *p,
modssl_ctx_t *base,
modssl_ctx_t *add,
modssl_ctx_t *mrg)
{
if (add->protocol_set) {
mrg->protocol = add->protocol;
}
else {
mrg->protocol = base->protocol;
}
cfgMerge(pphrase_dialog_type, SSL_PPTYPE_UNSET);
cfgMergeString(pphrase_dialog_path);
cfgMergeString(cert_chain);
cfgMerge(crl_path, NULL);
cfgMerge(crl_file, NULL);
cfgMergeInt(crl_check_mask);
cfgMergeString(auth.ca_cert_path);
cfgMergeString(auth.ca_cert_file);
cfgMergeString(auth.cipher_suite);
cfgMergeInt(auth.verify_depth);
cfgMerge(auth.verify_mode, SSL_CVERIFY_UNSET);
cfgMergeString(auth.tls13_ciphers);
cfgMergeInt(ocsp_mask);
cfgMergeBool(ocsp_force_default);
cfgMerge(ocsp_responder, NULL);
cfgMergeInt(ocsp_resptime_skew);
cfgMergeInt(ocsp_resp_maxage);
cfgMergeInt(ocsp_responder_timeout);
cfgMergeBool(ocsp_use_request_nonce);
cfgMerge(proxy_uri, NULL);
/* Set OCSP Responder Certificate Verification directive */
cfgMergeBool(ocsp_noverify);
/* Set OCSP Responder File directive for importing */
cfgMerge(ocsp_certs_file, NULL);
#ifdef HAVE_OCSP_STAPLING
cfgMergeBool(stapling_enabled);
cfgMergeInt(stapling_resptime_skew);
cfgMergeInt(stapling_resp_maxage);
cfgMergeInt(stapling_cache_timeout);
cfgMergeBool(stapling_return_errors);
cfgMergeBool(stapling_fake_trylater);
cfgMergeInt(stapling_errcache_timeout);
cfgMergeInt(stapling_responder_timeout);
cfgMerge(stapling_force_url, NULL);
#endif
#ifdef HAVE_SRP
cfgMergeString(srp_vfile);
cfgMergeString(srp_unknown_user_seed);
#endif
#ifdef HAVE_SSL_CONF_CMD
cfgMergeArray(ssl_ctx_param);
#endif
cfgMergeBool(ssl_check_peer_cn);
cfgMergeBool(ssl_check_peer_name);
cfgMergeBool(ssl_check_peer_expire);
}
static void modssl_ctx_cfg_merge_certkeys_array(apr_pool_t *p,
apr_array_header_t *base,
apr_array_header_t *add,
apr_array_header_t *mrg)
{
int i;
/*
* pick up to CERTKEYS_IDX_MAX+1 entries from "add" (in which case they
* they "knock out" their corresponding entries in "base", emulating
* the behavior with cfgMergeString in releases up to 2.4.7)
*/
for (i = 0; i < add->nelts && i <= CERTKEYS_IDX_MAX; i++) {
APR_ARRAY_PUSH(mrg, const char *) = APR_ARRAY_IDX(add, i, const char *);
}
/* add remaining ones from "base" */
while (i < base->nelts) {
APR_ARRAY_PUSH(mrg, const char *) = APR_ARRAY_IDX(base, i, const char *);
i++;
}
/* and finally, append the rest of "add" (if there are any) */
for (i = CERTKEYS_IDX_MAX+1; i < add->nelts; i++) {
APR_ARRAY_PUSH(mrg, const char *) = APR_ARRAY_IDX(add, i, const char *);
}
}
static void modssl_ctx_cfg_merge_server(apr_pool_t *p,
modssl_ctx_t *base,
modssl_ctx_t *add,
modssl_ctx_t *mrg)
{
modssl_ctx_cfg_merge(p, base, add, mrg);
/*
* For better backwards compatibility with releases up to 2.4.7,
* merging global and vhost-level SSLCertificateFile and
* SSLCertificateKeyFile directives needs special treatment.
* See also PR 56306 and 56353.
*/
modssl_ctx_cfg_merge_certkeys_array(p, base->pks->cert_files,
add->pks->cert_files,
mrg->pks->cert_files);
modssl_ctx_cfg_merge_certkeys_array(p, base->pks->key_files,
add->pks->key_files,
mrg->pks->key_files);
cfgMergeString(pks->ca_name_path);
cfgMergeString(pks->ca_name_file);
#ifdef HAVE_TLS_SESSION_TICKETS
cfgMergeString(ticket_key->file_path);
#endif
}
void *ssl_config_server_merge(apr_pool_t *p, void *basev, void *addv)
{
SSLSrvConfigRec *base = (SSLSrvConfigRec *)basev;
SSLSrvConfigRec *add = (SSLSrvConfigRec *)addv;
SSLSrvConfigRec *mrg = ssl_config_server_new(p);
cfgMerge(mc, NULL);
cfgMerge(enabled, SSL_ENABLED_UNSET);
cfgMergeInt(session_cache_timeout);
cfgMergeBool(cipher_server_pref);
cfgMergeBool(insecure_reneg);
#ifdef HAVE_TLSEXT
cfgMerge(strict_sni_vhost_check, SSL_ENABLED_UNSET);
#endif
#ifdef HAVE_FIPS
cfgMergeBool(fips);
#endif
#ifndef OPENSSL_NO_COMP
cfgMergeBool(compression);
#endif
cfgMergeBool(session_tickets);
modssl_ctx_cfg_merge_server(p, base->server, add->server, mrg->server);
return mrg;
}
/*
* Create per-directory SSL configuration
*/
static void modssl_ctx_init_proxy(SSLDirConfigRec *dc,
apr_pool_t *p)
{
modssl_ctx_t *mctx;
mctx = dc->proxy = apr_palloc(p, sizeof(*dc->proxy));
modssl_ctx_init(mctx, p);
mctx->pkp = apr_palloc(p, sizeof(*mctx->pkp));
mctx->pkp->cert_file = NULL;
mctx->pkp->cert_path = NULL;
mctx->pkp->ca_cert_file = NULL;
mctx->pkp->certs = NULL;
mctx->pkp->ca_certs = NULL;
}
void *ssl_config_perdir_create(apr_pool_t *p, char *dir)
{
SSLDirConfigRec *dc = apr_palloc(p, sizeof(*dc));
dc->bSSLRequired = FALSE;
dc->aRequirement = apr_array_make(p, 4, sizeof(ssl_require_t));
dc->nOptions = SSL_OPT_NONE|SSL_OPT_RELSET;
dc->nOptionsAdd = SSL_OPT_NONE;
dc->nOptionsDel = SSL_OPT_NONE;
dc->szCipherSuite = NULL;
dc->nVerifyClient = SSL_CVERIFY_UNSET;
dc->nVerifyDepth = UNSET;
dc->szUserName = NULL;
dc->nRenegBufferSize = UNSET;
dc->proxy_enabled = UNSET;
modssl_ctx_init_proxy(dc, p);
dc->proxy_post_config = FALSE;
return dc;
}
/*
* Merge per-directory SSL configurations
*/
static void modssl_ctx_cfg_merge_proxy(apr_pool_t *p,
modssl_ctx_t *base,
modssl_ctx_t *add,
modssl_ctx_t *mrg)
{
modssl_ctx_cfg_merge(p, base, add, mrg);
cfgMergeString(pkp->cert_file);
cfgMergeString(pkp->cert_path);
cfgMergeString(pkp->ca_cert_file);
cfgMergeString(pkp->certs);
cfgMergeString(pkp->ca_certs);
}
void *ssl_config_perdir_merge(apr_pool_t *p, void *basev, void *addv)
{
SSLDirConfigRec *base = (SSLDirConfigRec *)basev;
SSLDirConfigRec *add = (SSLDirConfigRec *)addv;
SSLDirConfigRec *mrg = (SSLDirConfigRec *)apr_palloc(p, sizeof(*mrg));
cfgMerge(bSSLRequired, FALSE);
cfgMergeArray(aRequirement);
if (add->nOptions & SSL_OPT_RELSET) {
mrg->nOptionsAdd =
(base->nOptionsAdd & ~(add->nOptionsDel)) | add->nOptionsAdd;
mrg->nOptionsDel =
(base->nOptionsDel & ~(add->nOptionsAdd)) | add->nOptionsDel;
mrg->nOptions =
(base->nOptions & ~(mrg->nOptionsDel)) | mrg->nOptionsAdd;
}
else {
mrg->nOptions = add->nOptions;
mrg->nOptionsAdd = add->nOptionsAdd;
mrg->nOptionsDel = add->nOptionsDel;
}
cfgMergeString(szCipherSuite);
cfgMerge(nVerifyClient, SSL_CVERIFY_UNSET);
cfgMergeInt(nVerifyDepth);
cfgMergeString(szUserName);
cfgMergeInt(nRenegBufferSize);
mrg->proxy_post_config = add->proxy_post_config;
if (!mrg->proxy_post_config) {
cfgMergeBool(proxy_enabled);
modssl_ctx_init_proxy(mrg, p);
modssl_ctx_cfg_merge_proxy(p, base->proxy, add->proxy, mrg->proxy);
/* Since ssl_proxy_section_post_config() hook won't be called if there
* is no SSLProxy* in this dir config, the ssl_ctx may still be NULL
* here at runtime. Merging it is either a no-op (NULL => NULL) because
* we are still before post config, or we really want to reuse the one
* from the upper/server context (outside of <Proxy> sections).
*/
cfgMerge(proxy->ssl_ctx, NULL);
}
else {
/* The post_config hook has already merged and initialized the
* proxy context, use it.
*/
mrg->proxy_enabled = add->proxy_enabled;
mrg->proxy = add->proxy;
}
return mrg;
}
/* Simply merge conf with base into conf, no third party. */
void ssl_config_proxy_merge(apr_pool_t *p,
SSLDirConfigRec *base,
SSLDirConfigRec *conf)
{
if (conf->proxy_enabled == UNSET) {
conf->proxy_enabled = base->proxy_enabled;
}
modssl_ctx_cfg_merge_proxy(p, base->proxy, conf->proxy, conf->proxy);
}
/*
* Configuration functions for particular directives
*/
const char *ssl_cmd_SSLPassPhraseDialog(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
int arglen = strlen(arg);
if ((err = ap_check_cmd_context(cmd, GLOBAL_ONLY))) {
return err;
}
if (strcEQ(arg, "builtin")) {
sc->server->pphrase_dialog_type = SSL_PPTYPE_BUILTIN;
sc->server->pphrase_dialog_path = NULL;
}
else if ((arglen > 5) && strEQn(arg, "exec:", 5)) {
sc->server->pphrase_dialog_type = SSL_PPTYPE_FILTER;
sc->server->pphrase_dialog_path =
ap_server_root_relative(cmd->pool, arg+5);
if (!sc->server->pphrase_dialog_path) {
return apr_pstrcat(cmd->pool,
"Invalid SSLPassPhraseDialog exec: path ",
arg+5, NULL);
}
if (!ssl_util_path_check(SSL_PCM_EXISTS,
sc->server->pphrase_dialog_path,
cmd->pool))
{
return apr_pstrcat(cmd->pool,
"SSLPassPhraseDialog: file '",
sc->server->pphrase_dialog_path,
"' does not exist", NULL);
}
}
else if ((arglen > 1) && (arg[0] == '|')) {
sc->server->pphrase_dialog_type = SSL_PPTYPE_PIPE;
sc->server->pphrase_dialog_path = arg + 1;
}
else {
return "SSLPassPhraseDialog: Invalid argument";
}
return NULL;
}
#if defined(HAVE_OPENSSL_ENGINE_H) && defined(HAVE_ENGINE_INIT)
const char *ssl_cmd_SSLCryptoDevice(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLModConfigRec *mc = myModConfig(cmd->server);
const char *err;
ENGINE *e;
if ((err = ap_check_cmd_context(cmd, GLOBAL_ONLY))) {
return err;
}
if (strcEQ(arg, "builtin")) {
mc->szCryptoDevice = NULL;
}
else if ((e = ENGINE_by_id(arg))) {
mc->szCryptoDevice = arg;
ENGINE_free(e);
}
else {
err = "SSLCryptoDevice: Invalid argument; must be one of: "
"'builtin' (none)";
e = ENGINE_get_first();
while (e) {
err = apr_pstrcat(cmd->pool, err, ", '", ENGINE_get_id(e),
"' (", ENGINE_get_name(e), ")", NULL);
/* Iterate; this call implicitly decrements the refcount
* on the 'old' e, per the docs in engine.h. */
e = ENGINE_get_next(e);
}
return err;
}
return NULL;
}
#endif
const char *ssl_cmd_SSLRandomSeed(cmd_parms *cmd,
void *dcfg,
const char *arg1,
const char *arg2,
const char *arg3)
{
SSLModConfigRec *mc = myModConfig(cmd->server);
const char *err;
ssl_randseed_t *seed;
int arg2len = strlen(arg2);
if ((err = ap_check_cmd_context(cmd, GLOBAL_ONLY))) {
return err;
}
if (ssl_config_global_isfixed(mc)) {
return NULL;
}
seed = apr_array_push(mc->aRandSeed);
if (strcEQ(arg1, "startup")) {
seed->nCtx = SSL_RSCTX_STARTUP;
}
else if (strcEQ(arg1, "connect")) {
seed->nCtx = SSL_RSCTX_CONNECT;
}
else {
return apr_pstrcat(cmd->pool, "SSLRandomSeed: "
"invalid context: `", arg1, "'",
NULL);
}
if ((arg2len > 5) && strEQn(arg2, "file:", 5)) {
seed->nSrc = SSL_RSSRC_FILE;
seed->cpPath = ap_server_root_relative(mc->pPool, arg2+5);
}
else if ((arg2len > 5) && strEQn(arg2, "exec:", 5)) {
seed->nSrc = SSL_RSSRC_EXEC;
seed->cpPath = ap_server_root_relative(mc->pPool, arg2+5);
}
else if ((arg2len > 4) && strEQn(arg2, "egd:", 4)) {
#ifdef HAVE_RAND_EGD
seed->nSrc = SSL_RSSRC_EGD;
seed->cpPath = ap_server_root_relative(mc->pPool, arg2+4);
#else
return apr_pstrcat(cmd->pool, "Invalid SSLRandomSeed entropy source `",
arg2, "': This version of " MODSSL_LIBRARY_NAME
" does not support the Entropy Gathering Daemon "
"(EGD).", NULL);
#endif
}
else if (strcEQ(arg2, "builtin")) {
seed->nSrc = SSL_RSSRC_BUILTIN;
seed->cpPath = NULL;
}
else {
seed->nSrc = SSL_RSSRC_FILE;
seed->cpPath = ap_server_root_relative(mc->pPool, arg2);
}
if (seed->nSrc != SSL_RSSRC_BUILTIN) {
if (!seed->cpPath) {
return apr_pstrcat(cmd->pool,
"Invalid SSLRandomSeed path ",
arg2, NULL);
}
if (!ssl_util_path_check(SSL_PCM_EXISTS, seed->cpPath, cmd->pool)) {
return apr_pstrcat(cmd->pool,
"SSLRandomSeed: source path '",
seed->cpPath, "' does not exist", NULL);
}
}
if (!arg3) {
seed->nBytes = 0; /* read whole file */
}
else {
if (seed->nSrc == SSL_RSSRC_BUILTIN) {
return "SSLRandomSeed: byte specification not "
"allowed for builtin seed source";
}
seed->nBytes = atoi(arg3);
if (seed->nBytes < 0) {
return "SSLRandomSeed: invalid number of bytes specified";
}
}
return NULL;
}
const char *ssl_cmd_SSLEngine(cmd_parms *cmd, void *dcfg, const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
if (!strcasecmp(arg, "On")) {
sc->enabled = SSL_ENABLED_TRUE;
return NULL;
}
else if (!strcasecmp(arg, "Off")) {
sc->enabled = SSL_ENABLED_FALSE;
return NULL;
}
else if (!strcasecmp(arg, "Optional")) {
sc->enabled = SSL_ENABLED_OPTIONAL;
return NULL;
}
return "Argument must be On, Off, or Optional";
}
const char *ssl_cmd_SSLFIPS(cmd_parms *cmd, void *dcfg, int flag)
{
#ifdef HAVE_FIPS
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
#endif
const char *err;
if ((err = ap_check_cmd_context(cmd, GLOBAL_ONLY))) {
return err;
}
#ifdef HAVE_FIPS
if ((sc->fips != UNSET) && (sc->fips != (BOOL)(flag ? TRUE : FALSE)))
return "Conflicting SSLFIPS options, cannot be both On and Off";
sc->fips = flag ? TRUE : FALSE;
#else
if (flag)
return "SSLFIPS invalid, rebuild httpd and openssl compiled for FIPS";
#endif
return NULL;
}
const char *ssl_cmd_SSLCipherSuite(cmd_parms *cmd,
void *dcfg,
const char *arg1, const char *arg2)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
if (arg2 == NULL) {
arg2 = arg1;
arg1 = "SSL";
}
if (!strcmp("SSL", arg1)) {
if (cmd->path) {
/* Disable null and export ciphers by default, except for PROFILE=
* configs where the parser doesn't cope. */
if (strncmp(arg2, "PROFILE=", 8) != 0)
arg2 = apr_pstrcat(cmd->pool, arg2, ":!aNULL:!eNULL:!EXP", NULL);
dc->szCipherSuite = arg2;
}
else {
sc->server->auth.cipher_suite = arg2;
}
return NULL;
}
#if SSL_HAVE_PROTOCOL_TLSV1_3
else if (!strcmp("TLSv1.3", arg1)) {
if (cmd->path) {
return "TLSv1.3 ciphers cannot be set inside a directory context";
}
sc->server->auth.tls13_ciphers = arg2;
return NULL;
}
#endif
return apr_pstrcat(cmd->pool, "procotol '", arg1, "' not supported", NULL);
}
#define SSL_FLAGS_CHECK_FILE \
(SSL_PCM_EXISTS|SSL_PCM_ISREG|SSL_PCM_ISNONZERO)
#define SSL_FLAGS_CHECK_DIR \
(SSL_PCM_EXISTS|SSL_PCM_ISDIR)
static const char *ssl_cmd_check_file(cmd_parms *parms,
const char **file)
{
const char *filepath = ap_server_root_relative(parms->pool, *file);
if (!filepath) {
return apr_pstrcat(parms->pool, parms->cmd->name,
": Invalid file path ", *file, NULL);
}
*file = filepath;
if (ssl_util_path_check(SSL_FLAGS_CHECK_FILE, *file, parms->pool)) {
return NULL;
}
return apr_pstrcat(parms->pool, parms->cmd->name,
": file '", *file,
"' does not exist or is empty", NULL);
}
const char *ssl_cmd_SSLCompression(cmd_parms *cmd, void *dcfg, int flag)
{
#if !defined(OPENSSL_NO_COMP)
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
#ifndef SSL_OP_NO_COMPRESSION
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
if (err)
return "This version of OpenSSL does not support enabling "
"SSLCompression within <VirtualHost> sections.";
#endif
if (flag) {
/* Some (packaged) versions of OpenSSL do not support
* compression by default. Enabling this directive would not
* have the desired effect, so fail with an error. */
STACK_OF(SSL_COMP) *meths = SSL_COMP_get_compression_methods();
if (sk_SSL_COMP_num(meths) == 0) {
return "This version of OpenSSL does not have any compression methods "
"available, cannot enable SSLCompression.";
}
}
sc->compression = flag ? TRUE : FALSE;
return NULL;
#else
return "Setting Compression mode unsupported; not implemented by the SSL library";
#endif
}
const char *ssl_cmd_SSLHonorCipherOrder(cmd_parms *cmd, void *dcfg, int flag)
{
#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->cipher_server_pref = flag?TRUE:FALSE;
return NULL;
#else
return "SSLHonorCipherOrder unsupported; not implemented by the SSL library";
#endif
}
const char *ssl_cmd_SSLSessionTickets(cmd_parms *cmd, void *dcfg, int flag)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
#ifndef SSL_OP_NO_TICKET
return "This version of OpenSSL does not support using "
"SSLSessionTickets.";
#endif
sc->session_tickets = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLInsecureRenegotiation(cmd_parms *cmd, void *dcfg, int flag)
{
#ifdef SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->insecure_reneg = flag?TRUE:FALSE;
return NULL;
#else
return "The SSLInsecureRenegotiation directive is not available "
"with this SSL library";
#endif
}
static const char *ssl_cmd_check_dir(cmd_parms *parms,
const char **dir)
{
const char *dirpath = ap_server_root_relative(parms->pool, *dir);
if (!dirpath) {
return apr_pstrcat(parms->pool, parms->cmd->name,
": Invalid dir path ", *dir, NULL);
}
*dir = dirpath;
if (ssl_util_path_check(SSL_FLAGS_CHECK_DIR, *dir, parms->pool)) {
return NULL;
}
return apr_pstrcat(parms->pool, parms->cmd->name,
": directory '", *dir,
"' does not exist", NULL);
}
const char *ssl_cmd_SSLCertificateFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
*(const char **)apr_array_push(sc->server->pks->cert_files) = arg;
return NULL;
}
const char *ssl_cmd_SSLCertificateKeyFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
*(const char **)apr_array_push(sc->server->pks->key_files) = arg;
return NULL;
}
const char *ssl_cmd_SSLCertificateChainFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
sc->server->cert_chain = arg;
return NULL;
}
#ifdef HAVE_TLS_SESSION_TICKETS
const char *ssl_cmd_SSLSessionTicketKeyFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
sc->server->ticket_key->file_path = arg;
return NULL;
}
#endif
#define NO_PER_DIR_SSL_CA \
"Your SSL library does not have support for per-directory CA"
const char *ssl_cmd_SSLCACertificatePath(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
/*SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;*/
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_dir(cmd, &arg))) {
return err;
}
if (cmd->path) {
return NO_PER_DIR_SSL_CA;
}
/* XXX: bring back per-dir */
sc->server->auth.ca_cert_path = arg;
return NULL;
}
const char *ssl_cmd_SSLCACertificateFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
/*SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;*/
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
if (cmd->path) {
return NO_PER_DIR_SSL_CA;
}
/* XXX: bring back per-dir */
sc->server->auth.ca_cert_file = arg;
return NULL;
}
const char *ssl_cmd_SSLCADNRequestPath(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_dir(cmd, &arg))) {
return err;
}
sc->server->pks->ca_name_path = arg;
return NULL;
}
const char *ssl_cmd_SSLCADNRequestFile(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
sc->server->pks->ca_name_file = arg;
return NULL;
}
const char *ssl_cmd_SSLCARevocationPath(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_dir(cmd, &arg))) {
return err;
}
sc->server->crl_path = arg;
return NULL;
}
const char *ssl_cmd_SSLCARevocationFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
sc->server->crl_file = arg;
return NULL;
}
static const char *ssl_cmd_crlcheck_parse(cmd_parms *parms,
const char *arg,
int *mask)
{
const char *w;
w = ap_getword_conf(parms->temp_pool, &arg);
if (strcEQ(w, "none")) {
*mask = SSL_CRLCHECK_NONE;
}
else if (strcEQ(w, "leaf")) {
*mask = SSL_CRLCHECK_LEAF;
}
else if (strcEQ(w, "chain")) {
*mask = SSL_CRLCHECK_CHAIN;
}
else {
return apr_pstrcat(parms->temp_pool, parms->cmd->name,
": Invalid argument '", w, "'",
NULL);
}
while (*arg) {
w = ap_getword_conf(parms->temp_pool, &arg);
if (strcEQ(w, "no_crl_for_cert_ok")) {
*mask |= SSL_CRLCHECK_NO_CRL_FOR_CERT_OK;
}
else {
return apr_pstrcat(parms->temp_pool, parms->cmd->name,
": Invalid argument '", w, "'",
NULL);
}
}
return NULL;
}
const char *ssl_cmd_SSLCARevocationCheck(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
return ssl_cmd_crlcheck_parse(cmd, arg, &sc->server->crl_check_mask);
}
static const char *ssl_cmd_verify_parse(cmd_parms *parms,
const char *arg,
ssl_verify_t *id)
{
if (strcEQ(arg, "none") || strcEQ(arg, "off")) {
*id = SSL_CVERIFY_NONE;
}
else if (strcEQ(arg, "optional")) {
*id = SSL_CVERIFY_OPTIONAL;
}
else if (strcEQ(arg, "require") || strcEQ(arg, "on")) {
*id = SSL_CVERIFY_REQUIRE;
}
else if (strcEQ(arg, "optional_no_ca")) {
*id = SSL_CVERIFY_OPTIONAL_NO_CA;
}
else {
return apr_pstrcat(parms->temp_pool, parms->cmd->name,
": Invalid argument '", arg, "'",
NULL);
}
return NULL;
}
const char *ssl_cmd_SSLVerifyClient(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
ssl_verify_t mode = SSL_CVERIFY_NONE;
const char *err;
if ((err = ssl_cmd_verify_parse(cmd, arg, &mode))) {
return err;
}
if (cmd->path) {
dc->nVerifyClient = mode;
}
else {
sc->server->auth.verify_mode = mode;
}
return NULL;
}
static const char *ssl_cmd_verify_depth_parse(cmd_parms *parms,
const char *arg,
int *depth)
{
if ((*depth = atoi(arg)) >= 0) {
return NULL;
}
return apr_pstrcat(parms->temp_pool, parms->cmd->name,
": Invalid argument '", arg, "'",
NULL);
}
const char *ssl_cmd_SSLVerifyDepth(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
int depth;
const char *err;
if ((err = ssl_cmd_verify_depth_parse(cmd, arg, &depth))) {
return err;
}
if (cmd->path) {
dc->nVerifyDepth = depth;
}
else {
sc->server->auth.verify_depth = depth;
}
return NULL;
}
const char *ssl_cmd_SSLSessionCache(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLModConfigRec *mc = myModConfig(cmd->server);
const char *err, *sep, *name;
long enabled_flags;
if ((err = ap_check_cmd_context(cmd, GLOBAL_ONLY))) {
return err;
}
/* The OpenSSL session cache mode must have both the flags
* SSL_SESS_CACHE_SERVER and SSL_SESS_CACHE_NO_INTERNAL set if a
* session cache is configured; NO_INTERNAL prevents the
* OpenSSL-internal session cache being used in addition to the
* "external" (mod_ssl-provided) cache, which otherwise causes
* additional memory consumption. */
enabled_flags = SSL_SESS_CACHE_SERVER | SSL_SESS_CACHE_NO_INTERNAL;
if (strcEQ(arg, "none")) {
/* Nothing to do; session cache will be off. */
}
else if (strcEQ(arg, "nonenotnull")) {
/* ### Having a separate mode for this seems logically
* unnecessary; the stated purpose of sending non-empty
* session IDs would be better fixed in OpenSSL or simply
* doing it by default if "none" is used. */
mc->sesscache_mode = enabled_flags;
}
else {
/* Argument is of form 'name:args' or just 'name'. */
sep = ap_strchr_c(arg, ':');
if (sep) {
name = apr_pstrmemdup(cmd->pool, arg, sep - arg);
sep++;
}
else {
name = arg;
}
/* Find the provider of given name. */
mc->sesscache = ap_lookup_provider(AP_SOCACHE_PROVIDER_GROUP,
name,
AP_SOCACHE_PROVIDER_VERSION);
if (mc->sesscache) {
/* Cache found; create it, passing anything beyond the colon. */
mc->sesscache_mode = enabled_flags;
err = mc->sesscache->create(&mc->sesscache_context, sep,
cmd->temp_pool, cmd->pool);
}
else {
apr_array_header_t *name_list;
const char *all_names;
/* Build a comma-separated list of all registered provider
* names: */
name_list = ap_list_provider_names(cmd->pool,
AP_SOCACHE_PROVIDER_GROUP,
AP_SOCACHE_PROVIDER_VERSION);
all_names = apr_array_pstrcat(cmd->pool, name_list, ',');
err = apr_psprintf(cmd->pool, "'%s' session cache not supported "
"(known names: %s). Maybe you need to load the "
"appropriate socache module (mod_socache_%s?).",
name, all_names, name);
}
}
if (err) {
return apr_psprintf(cmd->pool, "SSLSessionCache: %s", err);
}
return NULL;
}
const char *ssl_cmd_SSLSessionCacheTimeout(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->session_cache_timeout = atoi(arg);
if (sc->session_cache_timeout < 0) {
return "SSLSessionCacheTimeout: Invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLOptions(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
ssl_opt_t opt;
int first = TRUE;
char action, *w;
while (*arg) {
w = ap_getword_conf(cmd->temp_pool, &arg);
action = NUL;
if ((*w == '+') || (*w == '-')) {
action = *(w++);
}
else if (first) {
dc->nOptions = SSL_OPT_NONE;
first = FALSE;
}
if (strcEQ(w, "StdEnvVars")) {
opt = SSL_OPT_STDENVVARS;
}
else if (strcEQ(w, "ExportCertData")) {
opt = SSL_OPT_EXPORTCERTDATA;
}
else if (strcEQ(w, "FakeBasicAuth")) {
opt = SSL_OPT_FAKEBASICAUTH;
}
else if (strcEQ(w, "StrictRequire")) {
opt = SSL_OPT_STRICTREQUIRE;
}
else if (strcEQ(w, "OptRenegotiate")) {
opt = SSL_OPT_OPTRENEGOTIATE;
}
else if (strcEQ(w, "LegacyDNStringFormat")) {
opt = SSL_OPT_LEGACYDNFORMAT;
}
else {
return apr_pstrcat(cmd->pool,
"SSLOptions: Illegal option '", w, "'",
NULL);
}
if (action == '-') {
dc->nOptionsAdd &= ~opt;
dc->nOptionsDel |= opt;
dc->nOptions &= ~opt;
}
else if (action == '+') {
dc->nOptionsAdd |= opt;
dc->nOptionsDel &= ~opt;
dc->nOptions |= opt;
}
else {
dc->nOptions = opt;
dc->nOptionsAdd = opt;
dc->nOptionsDel = SSL_OPT_NONE;
}
}
return NULL;
}
const char *ssl_cmd_SSLRequireSSL(cmd_parms *cmd, void *dcfg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
dc->bSSLRequired = TRUE;
return NULL;
}
const char *ssl_cmd_SSLRequire(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
ap_expr_info_t *info = apr_pcalloc(cmd->pool, sizeof(ap_expr_info_t));
ssl_require_t *require;
const char *errstring;
info->flags = AP_EXPR_FLAG_SSL_EXPR_COMPAT;
info->filename = cmd->directive->filename;
info->line_number = cmd->directive->line_num;
info->module_index = APLOG_MODULE_INDEX;
errstring = ap_expr_parse(cmd->pool, cmd->temp_pool, info, arg, NULL);
if (errstring) {
return apr_pstrcat(cmd->pool, "SSLRequire: ", errstring, NULL);
}
require = apr_array_push(dc->aRequirement);
require->cpExpr = arg;
require->mpExpr = info;
return NULL;
}
const char *ssl_cmd_SSLRenegBufferSize(cmd_parms *cmd, void *dcfg, const char *arg)
{
SSLDirConfigRec *dc = dcfg;
int val;
val = atoi(arg);
if (val < 0) {
return apr_pstrcat(cmd->pool, "Invalid size for SSLRenegBufferSize: ",
arg, NULL);
}
dc->nRenegBufferSize = val;
return NULL;
}
static const char *ssl_cmd_protocol_parse(cmd_parms *parms,
const char *arg,
ssl_proto_t *options)
{
ssl_proto_t thisopt;
*options = SSL_PROTOCOL_NONE;
while (*arg) {
char *w = ap_getword_conf(parms->temp_pool, &arg);
char action = '\0';
if ((*w == '+') || (*w == '-')) {
action = *(w++);
}
if (strcEQ(w, "SSLv2")) {
if (action == '-') {
continue;
}
else {
return "SSLProtocol: SSLv2 is no longer supported";
}
}
else if (strcEQ(w, "SSLv3")) {
#ifdef OPENSSL_NO_SSL3
if (action != '-') {
return "SSLv3 not supported by this version of OpenSSL";
}
/* Nothing to do, the flag is not present to be toggled */
continue;
#else
thisopt = SSL_PROTOCOL_SSLV3;
#endif
}
else if (strcEQ(w, "TLSv1")) {
thisopt = SSL_PROTOCOL_TLSV1;
}
#ifdef HAVE_TLSV1_X
else if (strcEQ(w, "TLSv1.1")) {
thisopt = SSL_PROTOCOL_TLSV1_1;
}
else if (strcEQ(w, "TLSv1.2")) {
thisopt = SSL_PROTOCOL_TLSV1_2;
}
else if (SSL_HAVE_PROTOCOL_TLSV1_3 && strcEQ(w, "TLSv1.3")) {
thisopt = SSL_PROTOCOL_TLSV1_3;
}
#endif
else if (strcEQ(w, "all")) {
thisopt = SSL_PROTOCOL_ALL;
}
else {
return apr_pstrcat(parms->temp_pool,
parms->cmd->name,
": Illegal protocol '", w, "'", NULL);
}
if (action == '-') {
*options &= ~thisopt;
}
else if (action == '+') {
*options |= thisopt;
}
else {
if (*options != SSL_PROTOCOL_NONE) {
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, parms->server, APLOGNO(02532)
"%s: Protocol '%s' overrides already set parameter(s). "
"Check if a +/- prefix is missing.",
parms->cmd->name, w);
}
*options = thisopt;
}
}
return NULL;
}
const char *ssl_cmd_SSLProtocol(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->protocol_set = 1;
return ssl_cmd_protocol_parse(cmd, arg, &sc->server->protocol);
}
const char *ssl_cmd_SSLProxyEngine(cmd_parms *cmd, void *dcfg, int flag)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
dc->proxy_enabled = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLProxyProtocol(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
dc->proxy->protocol_set = 1;
return ssl_cmd_protocol_parse(cmd, arg, &dc->proxy->protocol);
}
const char *ssl_cmd_SSLProxyCipherSuite(cmd_parms *cmd,
void *dcfg,
const char *arg1, const char *arg2)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
if (arg2 == NULL) {
arg2 = arg1;
arg1 = "SSL";
}
if (!strcmp("SSL", arg1)) {
/* Disable null and export ciphers by default, except for PROFILE=
* configs where the parser doesn't cope. */
if (strncmp(arg2, "PROFILE=", 8) != 0)
arg2 = apr_pstrcat(cmd->pool, arg2, ":!aNULL:!eNULL:!EXP", NULL);
dc->proxy->auth.cipher_suite = arg2;
return NULL;
}
#if SSL_HAVE_PROTOCOL_TLSV1_3
else if (!strcmp("TLSv1.3", arg1)) {
dc->proxy->auth.tls13_ciphers = arg2;
return NULL;
}
#endif
return apr_pstrcat(cmd->pool, "procotol '", arg1, "' not supported", NULL);
}
const char *ssl_cmd_SSLProxyVerify(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
ssl_verify_t mode = SSL_CVERIFY_NONE;
const char *err;
if ((err = ssl_cmd_verify_parse(cmd, arg, &mode))) {
return err;
}
dc->proxy->auth.verify_mode = mode;
return NULL;
}
const char *ssl_cmd_SSLProxyVerifyDepth(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
int depth;
const char *err;
if ((err = ssl_cmd_verify_depth_parse(cmd, arg, &depth))) {
return err;
}
dc->proxy->auth.verify_depth = depth;
return NULL;
}
const char *ssl_cmd_SSLProxyCACertificateFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
dc->proxy->auth.ca_cert_file = arg;
return NULL;
}
const char *ssl_cmd_SSLProxyCACertificatePath(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
const char *err;
if ((err = ssl_cmd_check_dir(cmd, &arg))) {
return err;
}
dc->proxy->auth.ca_cert_path = arg;
return NULL;
}
const char *ssl_cmd_SSLProxyCARevocationPath(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
const char *err;
if ((err = ssl_cmd_check_dir(cmd, &arg))) {
return err;
}
dc->proxy->crl_path = arg;
return NULL;
}
const char *ssl_cmd_SSLProxyCARevocationFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
dc->proxy->crl_file = arg;
return NULL;
}
const char *ssl_cmd_SSLProxyCARevocationCheck(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
return ssl_cmd_crlcheck_parse(cmd, arg, &dc->proxy->crl_check_mask);
}
const char *ssl_cmd_SSLProxyMachineCertificateFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
dc->proxy->pkp->cert_file = arg;
return NULL;
}
const char *ssl_cmd_SSLProxyMachineCertificatePath(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
const char *err;
if ((err = ssl_cmd_check_dir(cmd, &arg))) {
return err;
}
dc->proxy->pkp->cert_path = arg;
return NULL;
}
const char *ssl_cmd_SSLProxyMachineCertificateChainFile(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
dc->proxy->pkp->ca_cert_file = arg;
return NULL;
}
const char *ssl_cmd_SSLUserName(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
dc->szUserName = arg;
return NULL;
}
static const char *ssl_cmd_ocspcheck_parse(cmd_parms *parms,
const char *arg,
int *mask)
{
const char *w;
w = ap_getword_conf(parms->temp_pool, &arg);
if (strcEQ(w, "off")) {
*mask = SSL_OCSPCHECK_NONE;
}
else if (strcEQ(w, "leaf")) {
*mask = SSL_OCSPCHECK_LEAF;
}
else if (strcEQ(w, "on")) {
*mask = SSL_OCSPCHECK_CHAIN;
}
else {
return apr_pstrcat(parms->temp_pool, parms->cmd->name,
": Invalid argument '", w, "'",
NULL);
}
while (*arg) {
w = ap_getword_conf(parms->temp_pool, &arg);
if (strcEQ(w, "no_ocsp_for_cert_ok")) {
*mask |= SSL_OCSPCHECK_NO_OCSP_FOR_CERT_OK;
}
else {
return apr_pstrcat(parms->temp_pool, parms->cmd->name,
": Invalid argument '", w, "'",
NULL);
}
}
return NULL;
}
const char *ssl_cmd_SSLOCSPEnable(cmd_parms *cmd, void *dcfg, const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
#ifdef OPENSSL_NO_OCSP
if (flag) {
return "OCSP support disabled in SSL library; cannot enable "
"OCSP validation";
}
#endif
return ssl_cmd_ocspcheck_parse(cmd, arg, &sc->server->ocsp_mask);
}
const char *ssl_cmd_SSLOCSPOverrideResponder(cmd_parms *cmd, void *dcfg, int flag)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->ocsp_force_default = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLOCSPDefaultResponder(cmd_parms *cmd, void *dcfg, const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->ocsp_responder = arg;
return NULL;
}
const char *ssl_cmd_SSLOCSPResponseTimeSkew(cmd_parms *cmd, void *dcfg, const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->ocsp_resptime_skew = atoi(arg);
if (sc->server->ocsp_resptime_skew < 0) {
return "SSLOCSPResponseTimeSkew: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLOCSPResponseMaxAge(cmd_parms *cmd, void *dcfg, const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->ocsp_resp_maxage = atoi(arg);
if (sc->server->ocsp_resp_maxage < 0) {
return "SSLOCSPResponseMaxAge: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLOCSPResponderTimeout(cmd_parms *cmd, void *dcfg, const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->ocsp_responder_timeout = apr_time_from_sec(atoi(arg));
if (sc->server->ocsp_responder_timeout < 0) {
return "SSLOCSPResponderTimeout: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLOCSPUseRequestNonce(cmd_parms *cmd, void *dcfg, int flag)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->ocsp_use_request_nonce = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLOCSPProxyURL(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->proxy_uri = apr_palloc(cmd->pool, sizeof(apr_uri_t));
if (apr_uri_parse(cmd->pool, arg, sc->server->proxy_uri) != APR_SUCCESS) {
return apr_psprintf(cmd->pool,
"SSLOCSPProxyURL: Cannot parse URL %s", arg);
}
return NULL;
}
/* Set OCSP responder certificate verification directive */
const char *ssl_cmd_SSLOCSPNoVerify(cmd_parms *cmd, void *dcfg, int flag)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->ocsp_noverify = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLProxyCheckPeerExpire(cmd_parms *cmd, void *dcfg, int flag)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
dc->proxy->ssl_check_peer_expire = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLProxyCheckPeerCN(cmd_parms *cmd, void *dcfg, int flag)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
dc->proxy->ssl_check_peer_cn = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLProxyCheckPeerName(cmd_parms *cmd, void *dcfg, int flag)
{
SSLDirConfigRec *dc = (SSLDirConfigRec *)dcfg;
dc->proxy->ssl_check_peer_name = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLStrictSNIVHostCheck(cmd_parms *cmd, void *dcfg, int flag)
{
#ifdef HAVE_TLSEXT
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->strict_sni_vhost_check = flag ? SSL_ENABLED_TRUE : SSL_ENABLED_FALSE;
return NULL;
#else
return "SSLStrictSNIVHostCheck failed; OpenSSL is not built with support "
"for TLS extensions and SNI indication. Refer to the "
"documentation, and build a compatible version of OpenSSL.";
#endif
}
#ifdef HAVE_OCSP_STAPLING
const char *ssl_cmd_SSLStaplingCache(cmd_parms *cmd,
void *dcfg,
const char *arg)
{
SSLModConfigRec *mc = myModConfig(cmd->server);
const char *err, *sep, *name;
if ((err = ap_check_cmd_context(cmd, GLOBAL_ONLY))) {
return err;
}
/* Argument is of form 'name:args' or just 'name'. */
sep = ap_strchr_c(arg, ':');
if (sep) {
name = apr_pstrmemdup(cmd->pool, arg, sep - arg);
sep++;
}
else {
name = arg;
}
/* Find the provider of given name. */
mc->stapling_cache = ap_lookup_provider(AP_SOCACHE_PROVIDER_GROUP,
name,
AP_SOCACHE_PROVIDER_VERSION);
if (mc->stapling_cache) {
/* Cache found; create it, passing anything beyond the colon. */
err = mc->stapling_cache->create(&mc->stapling_cache_context,
sep, cmd->temp_pool,
cmd->pool);
}
else {
apr_array_header_t *name_list;
const char *all_names;
/* Build a comma-separated list of all registered provider
* names: */
name_list = ap_list_provider_names(cmd->pool,
AP_SOCACHE_PROVIDER_GROUP,
AP_SOCACHE_PROVIDER_VERSION);
all_names = apr_array_pstrcat(cmd->pool, name_list, ',');
err = apr_psprintf(cmd->pool, "'%s' stapling cache not supported "
"(known names: %s) Maybe you need to load the "
"appropriate socache module (mod_socache_%s?)",
name, all_names, name);
}
if (err) {
return apr_psprintf(cmd->pool, "SSLStaplingCache: %s", err);
}
return NULL;
}
const char *ssl_cmd_SSLUseStapling(cmd_parms *cmd, void *dcfg, int flag)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_enabled = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLStaplingResponseTimeSkew(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_resptime_skew = atoi(arg);
if (sc->server->stapling_resptime_skew < 0) {
return "SSLStaplingResponseTimeSkew: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLStaplingResponseMaxAge(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_resp_maxage = atoi(arg);
if (sc->server->stapling_resp_maxage < 0) {
return "SSLStaplingResponseMaxAge: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLStaplingStandardCacheTimeout(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_cache_timeout = atoi(arg);
if (sc->server->stapling_cache_timeout < 0) {
return "SSLStaplingStandardCacheTimeout: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLStaplingErrorCacheTimeout(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_errcache_timeout = atoi(arg);
if (sc->server->stapling_errcache_timeout < 0) {
return "SSLStaplingErrorCacheTimeout: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLStaplingReturnResponderErrors(cmd_parms *cmd,
void *dcfg, int flag)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_return_errors = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLStaplingFakeTryLater(cmd_parms *cmd,
void *dcfg, int flag)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_fake_trylater = flag ? TRUE : FALSE;
return NULL;
}
const char *ssl_cmd_SSLStaplingResponderTimeout(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_responder_timeout = atoi(arg);
sc->server->stapling_responder_timeout *= APR_USEC_PER_SEC;
if (sc->server->stapling_responder_timeout < 0) {
return "SSLStaplingResponderTimeout: invalid argument";
}
return NULL;
}
const char *ssl_cmd_SSLStaplingForceURL(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
sc->server->stapling_force_url = arg;
return NULL;
}
#endif /* HAVE_OCSP_STAPLING */
#ifdef HAVE_SSL_CONF_CMD
const char *ssl_cmd_SSLOpenSSLConfCmd(cmd_parms *cmd, void *dcfg,
const char *arg1, const char *arg2)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
SSL_CONF_CTX *cctx = sc->server->ssl_ctx_config;
int value_type = SSL_CONF_cmd_value_type(cctx, arg1);
const char *err;
ssl_ctx_param_t *param;
if (value_type == SSL_CONF_TYPE_UNKNOWN) {
return apr_psprintf(cmd->pool,
"'%s': invalid OpenSSL configuration command",
arg1);
}
if (value_type == SSL_CONF_TYPE_FILE) {
if ((err = ssl_cmd_check_file(cmd, &arg2)))
return err;
}
else if (value_type == SSL_CONF_TYPE_DIR) {
if ((err = ssl_cmd_check_dir(cmd, &arg2)))
return err;
}
if (strcEQ(arg1, "CipherString")) {
/* always disable null and export ciphers */
arg2 = apr_pstrcat(cmd->pool, arg2, ":!aNULL:!eNULL:!EXP", NULL);
}
param = apr_array_push(sc->server->ssl_ctx_param);
param->name = arg1;
param->value = arg2;
return NULL;
}
#endif
#ifdef HAVE_SRP
const char *ssl_cmd_SSLSRPVerifierFile(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg)))
return err;
/* SRP_VBASE_init takes char*, not const char* */
sc->server->srp_vfile = apr_pstrdup(cmd->pool, arg);
return NULL;
}
const char *ssl_cmd_SSLSRPUnknownUserSeed(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
/* SRP_VBASE_new takes char*, not const char* */
sc->server->srp_unknown_user_seed = apr_pstrdup(cmd->pool, arg);
return NULL;
}
#endif /* HAVE_SRP */
/* OCSP Responder File Function to read in value */
const char *ssl_cmd_SSLOCSPResponderCertificateFile(cmd_parms *cmd, void *dcfg,
const char *arg)
{
SSLSrvConfigRec *sc = mySrvConfig(cmd->server);
const char *err;
if ((err = ssl_cmd_check_file(cmd, &arg))) {
return err;
}
sc->server->ocsp_certs_file = arg;
return NULL;
}
void ssl_hook_ConfigTest(apr_pool_t *pconf, server_rec *s)
{
apr_file_t *out = NULL;
if (!ap_exists_config_define("DUMP_CERTS")) {
return;
}
apr_file_open_stdout(&out, pconf);
apr_file_printf(out, "Server certificates:\n");
/* Dump the filenames of all configured server certificates to
* stdout. */
while (s) {
SSLSrvConfigRec *sc = mySrvConfig(s);
if (sc && sc->server && sc->server->pks) {
modssl_pk_server_t *const pks = sc->server->pks;
int i;
for (i = 0; (i < pks->cert_files->nelts) &&
APR_ARRAY_IDX(pks->cert_files, i, const char *);
i++) {
apr_file_printf(out, " %s\n",
APR_ARRAY_IDX(pks->cert_files,
i, const char *));
}
}
s = s->next;
}
}