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/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <priv.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "httpd.h"
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#include "http_config.h"
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#include "http_protocol.h"
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#include "http_log.h"
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#include "mpm_common.h"
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#include "ap_mpm.h"
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#include "apr_strings.h"
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/* TODO - get rid of unixd dependency */
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#include "unixd.h"
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#define CFG_CHECK(x) if (x == -1) return strerror(errno);
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#define CR_CHECK(x) if (x == -1) \
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ap_log_error(APLOG_MARK, APLOG_CRIT,0,0, \
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"Failed to initialise privileges: %s", strerror(errno))
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module AP_MODULE_DECLARE_DATA privileges_module;
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/* #define BIG_SECURITY_HOLE 1 */
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typedef enum { PRIV_UNSET, PRIV_FAST, PRIV_SECURE, PRIV_SELECTIVE } priv_mode;
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typedef struct {
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priv_set_t *priv;
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priv_set_t *child_priv;
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uid_t uid;
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gid_t gid;
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priv_mode mode;
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} priv_cfg;
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typedef struct {
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priv_mode mode;
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} priv_dir_cfg;
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static priv_set_t *priv_setid;
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static priv_set_t *priv_default = NULL;
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static int dtrace_enabled = 0;
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static apr_status_t priv_cfg_cleanup(void *CFG)
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{
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priv_cfg *cfg = CFG;
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priv_freeset(cfg->priv);
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priv_freeset(cfg->child_priv);
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return APR_SUCCESS;
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}
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static void *privileges_merge_cfg(apr_pool_t *pool, void *BASE, void *ADD)
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{
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/* inherit the mode if it's not set; the rest won't be inherited */
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priv_cfg *base = BASE;
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priv_cfg *add = ADD;
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priv_cfg *ret = apr_pmemdup(pool, add, sizeof(priv_cfg));
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ret->mode = (add->mode == PRIV_UNSET) ? base->mode : add->mode;
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return ret;
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}
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static void *privileges_create_cfg(apr_pool_t *pool, server_rec *s)
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{
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priv_cfg *cfg = apr_palloc(pool, sizeof(priv_cfg));
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/* Start at basic privileges all round. */
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cfg->priv = priv_str_to_set("basic", ",", NULL);
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cfg->child_priv = priv_str_to_set("basic", ",", NULL);
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/* By default, run in secure mode.
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* That means dropping basic privileges we don't usually need.
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*/
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CR_CHECK(priv_delset(cfg->priv, PRIV_FILE_LINK_ANY));
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CR_CHECK(priv_delset(cfg->priv, PRIV_PROC_INFO));
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CR_CHECK(priv_delset(cfg->priv, PRIV_PROC_SESSION));
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/* Hmmm, should CGI default to secure too ? */
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/*
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CR_CHECK(priv_delset(cfg->child_priv, PRIV_FILE_LINK_ANY));
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CR_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_INFO));
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CR_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_SESSION));
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CR_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_FORK));
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CR_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_EXEC));
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*/
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/* we´ll use 0 for unset */
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cfg->uid = 0;
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cfg->gid = 0;
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cfg->mode = PRIV_UNSET;
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apr_pool_cleanup_register(pool, cfg, priv_cfg_cleanup,
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apr_pool_cleanup_null);
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/* top-level default_priv wants the top-level cfg */
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if (priv_default == NULL) {
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priv_default = cfg->priv;
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}
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return cfg;
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}
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static void *privileges_create_dir_cfg(apr_pool_t *pool, char *dummy)
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{
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priv_dir_cfg *cfg = apr_palloc(pool, sizeof(priv_dir_cfg));
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cfg->mode = PRIV_UNSET;
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return cfg;
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}
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static void *privileges_merge_dir_cfg(apr_pool_t *pool, void *BASE, void *ADD)
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{
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priv_dir_cfg *base = BASE;
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priv_dir_cfg *add = ADD;
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priv_dir_cfg *ret = apr_palloc(pool, sizeof(priv_dir_cfg));
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ret->mode = (add->mode == PRIV_UNSET) ? base->mode : add->mode;
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return ret;
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}
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static apr_status_t privileges_end_req(void *data)
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{
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request_rec *r = data;
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priv_cfg *cfg = ap_get_module_config(r->server->module_config,
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&privileges_module);
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priv_dir_cfg *dcfg = ap_get_module_config(r->per_dir_config,
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&privileges_module);
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/* ugly hack: grab default uid and gid from unixd */
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extern unixd_config_rec ap_unixd_config;
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/* If we forked a child, we dropped privilege to revert, so
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* all we can do now is exit
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*/
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if ((cfg->mode == PRIV_SECURE) ||
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((cfg->mode == PRIV_SELECTIVE) && (dcfg->mode == PRIV_SECURE))) {
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exit(0);
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}
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/* if either user or group are not the default, restore them */
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if (cfg->uid || cfg->gid) {
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if (setppriv(PRIV_ON, PRIV_EFFECTIVE, priv_setid) == -1) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"PRIV_ON failed restoring default user/group");
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}
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if (cfg->uid && (setuid(ap_unixd_config.user_id) == -1)) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error restoring default userid");
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}
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if (cfg->gid && (setgid(ap_unixd_config.group_id) == -1)) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error restoring default group");
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}
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}
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/* restore default privileges */
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if (setppriv(PRIV_SET, PRIV_EFFECTIVE, priv_default) == -1) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error restoring default privileges: %s", strerror(errno));
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}
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return APR_SUCCESS;
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}
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static int privileges_req(request_rec *r)
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{
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/* secure mode: fork a process to handle the request */
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apr_proc_t proc;
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apr_status_t rv;
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int exitcode;
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apr_exit_why_e exitwhy;
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int fork_req;
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priv_cfg *cfg = ap_get_module_config(r->server->module_config,
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&privileges_module);
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void *breadcrumb = ap_get_module_config(r->request_config,
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&privileges_module);
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if (!breadcrumb) {
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/* first call: this is the vhost */
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fork_req = (cfg->mode == PRIV_SECURE);
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/* set breadcrumb */
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ap_set_module_config(r->request_config, &privileges_module, &cfg->mode);
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/* If we have per-dir config, defer doing anything */
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if ((cfg->mode == PRIV_SELECTIVE)) {
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/* Defer dropping privileges 'til we have a directory
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* context that'll tell us whether to fork.
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*/
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return DECLINED;
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}
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}
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else {
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/* second call is for per-directory. */
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priv_dir_cfg *dcfg;
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if ((cfg->mode != PRIV_SELECTIVE)) {
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/* Our fate was already determined for the vhost -
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* nothing to do per-directory
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*/
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return DECLINED;
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}
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dcfg = ap_get_module_config(r->per_dir_config, &privileges_module);
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fork_req = (dcfg->mode == PRIV_SECURE);
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}
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if (fork_req) {
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rv = apr_proc_fork(&proc, r->pool);
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switch (rv) {
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case APR_INPARENT:
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ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
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"parent waiting for child");
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/* FIXME - does the child need to run synchronously?
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* esp. if we enable mod_privileges with threaded MPMs?
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* We do need at least to ensure r outlives the child.
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*/
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rv = apr_proc_wait(&proc, &exitcode, &exitwhy, APR_WAIT);
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ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "parent: child %s",
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(rv == APR_CHILD_DONE) ? "done" : "notdone");
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/* The child has taken responsibility for reading all input
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* and sending all output. So we need to bow right out,
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* and even abandon "normal" housekeeping.
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*/
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r->eos_sent = 1;
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apr_table_unset(r->headers_in, "Content-Type");
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apr_table_unset(r->headers_in, "Content-Length");
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/* Testing with ab and 100k requests reveals no nasties
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* so I infer we're not leaking anything like memory
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* or file descriptors. That's nice!
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*/
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return DONE;
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case APR_INCHILD:
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ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "In child!");
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break; /* now we'll drop privileges in the child */
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default:
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Failed to fork secure child process!");
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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}
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/* OK, now drop privileges. */
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/* cleanup should happen even if something fails part-way through here */
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apr_pool_cleanup_register(r->pool, r, privileges_end_req,
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apr_pool_cleanup_null);
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/* set user and group if configured */
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if (cfg->uid || cfg->gid) {
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if (setppriv(PRIV_ON, PRIV_EFFECTIVE, priv_setid) == -1) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"No privilege to set user/group");
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}
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/* if we should be able to set these but can't, it could be
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* a serious security issue. Bail out rather than risk it!
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*/
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if (cfg->uid && (setuid(cfg->uid) == -1)) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error setting userid");
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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if (cfg->gid && (setgid(cfg->gid) == -1)) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error setting group");
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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}
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/* set vhost's privileges */
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if (setppriv(PRIV_SET, PRIV_EFFECTIVE, cfg->priv) == -1) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error setting effective privileges: %s", strerror(errno));
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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/* ... including those of any subprocesses */
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if (setppriv(PRIV_SET, PRIV_INHERITABLE, cfg->child_priv) == -1) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error setting inheritable privileges: %s", strerror(errno));
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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if (setppriv(PRIV_SET, PRIV_LIMIT, cfg->child_priv) == -1) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error setting limit privileges: %s", strerror(errno));
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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/* If we're in a child process, drop down PPERM too */
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if (fork_req) {
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if (setppriv(PRIV_SET, PRIV_PERMITTED, cfg->priv) == -1) {
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ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
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"Error setting permitted privileges: %s",
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strerror(errno));
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return HTTP_INTERNAL_SERVER_ERROR;
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}
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}
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return OK;
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}
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#define PDROP_CHECK(x) if (x == -1) { \
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ap_log_error(APLOG_MARK, APLOG_CRIT, 0, s, \
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"Error dropping privileges: %s", strerror(errno)); \
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return !OK; \
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}
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static int privileges_drop_first(apr_pool_t *pool, server_rec *s)
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{
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/* We need to set privileges before mod_unixd,
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* 'cos otherwise setuid will wipe our privilege to do so
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*/
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priv_cfg *spcfg;
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server_rec *sp;
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priv_set_t *ppriv = priv_allocset();
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/* compute ppriv from the union of all the vhosts plus setid */
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priv_copyset(priv_setid, ppriv);
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for (sp = s; sp != NULL; sp=sp->next) {
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spcfg = ap_get_module_config(sp->module_config, &privileges_module);
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priv_union(spcfg->priv, ppriv);
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}
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PDROP_CHECK(setppriv(PRIV_SET, PRIV_PERMITTED, ppriv))
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PDROP_CHECK(setppriv(PRIV_SET, PRIV_EFFECTIVE, ppriv))
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priv_freeset(ppriv);
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return OK;
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}
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static int privileges_drop_last(apr_pool_t *pool, server_rec *s)
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{
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/* Our config stuff has set the privileges we need, so now
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* we just set them to those of the parent server_rec
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*
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* This has to happen after mod_unixd, 'cos mod_unixd needs
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* privileges we drop here.
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*/
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priv_cfg *cfg = ap_get_module_config(s->module_config, &privileges_module);
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/* defaults - the default vhost */
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PDROP_CHECK(setppriv(PRIV_SET, PRIV_LIMIT, cfg->child_priv))
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PDROP_CHECK(setppriv(PRIV_SET, PRIV_INHERITABLE, cfg->child_priv))
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PDROP_CHECK(setppriv(PRIV_SET, PRIV_EFFECTIVE, cfg->priv))
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return OK;
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}
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| 347 |
static apr_status_t privileges_term(void *rec)
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{
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| 349 |
priv_freeset(priv_setid);
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return APR_SUCCESS;
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| 351 |
}
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| 352 |
static int privileges_postconf(apr_pool_t *pconf, apr_pool_t *plog,
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apr_pool_t *ptemp, server_rec *s)
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| 354 |
{
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| 355 |
priv_cfg *cfg;
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| 356 |
server_rec *sp;
|
| 357 |
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| 358 |
/* if we have dtrace enabled, merge it into everything */
|
| 359 |
if (dtrace_enabled) {
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| 360 |
for (sp = s; sp != NULL; sp = sp->next) {
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| 361 |
cfg = ap_get_module_config(sp->module_config, &privileges_module);
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| 362 |
CR_CHECK(priv_addset(cfg->priv, PRIV_DTRACE_KERNEL));
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| 363 |
CR_CHECK(priv_addset(cfg->priv, PRIV_DTRACE_PROC));
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| 364 |
CR_CHECK(priv_addset(cfg->priv, PRIV_DTRACE_USER));
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| 365 |
CR_CHECK(priv_addset(cfg->child_priv, PRIV_DTRACE_KERNEL));
|
| 366 |
CR_CHECK(priv_addset(cfg->child_priv, PRIV_DTRACE_PROC));
|
| 367 |
CR_CHECK(priv_addset(cfg->child_priv, PRIV_DTRACE_USER));
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| 368 |
}
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| 369 |
CR_CHECK(priv_addset(priv_default, PRIV_DTRACE_KERNEL));
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| 370 |
CR_CHECK(priv_addset(priv_default, PRIV_DTRACE_PROC));
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| 371 |
CR_CHECK(priv_addset(priv_default, PRIV_DTRACE_USER));
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| 372 |
}
|
| 373 |
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| 374 |
/* set up priv_setid for per-request use */
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priv_setid = priv_allocset();
|
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apr_pool_cleanup_register(pconf, NULL, privileges_term,
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apr_pool_cleanup_null);
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priv_emptyset(priv_setid);
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| 379 |
if (priv_addset(priv_setid, PRIV_PROC_SETID) == -1) {
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| 380 |
ap_log_perror(APLOG_MARK, APLOG_CRIT, 0, ptemp,
|
| 381 |
"priv_addset: %s", strerror(errno));
|
| 382 |
return !OK;
|
| 383 |
}
|
| 384 |
return OK;
|
| 385 |
}
|
| 386 |
static int privileges_init(apr_pool_t *pconf, apr_pool_t *plog,
|
| 387 |
apr_pool_t *ptemp)
|
| 388 |
{
|
| 389 |
/* refuse to work if the MPM is threaded */
|
| 390 |
int threaded;
|
| 391 |
int rv = ap_mpm_query(AP_MPMQ_IS_THREADED, &threaded);
|
| 392 |
if (rv != APR_SUCCESS) {
|
| 393 |
ap_log_perror(APLOG_MARK, APLOG_NOTICE, rv, ptemp,
|
| 394 |
"mod_privileges: unable to determine MPM characteristics."
|
| 395 |
" Please ensure you are using a non-threaded MPM "
|
| 396 |
"with this module.");
|
| 397 |
}
|
| 398 |
if (threaded) {
|
| 399 |
ap_log_perror(APLOG_MARK, APLOG_CRIT, rv, ptemp,
|
| 400 |
"mod_privileges is not compatible with a threaded MPM.");
|
| 401 |
return !OK;
|
| 402 |
}
|
| 403 |
return OK;
|
| 404 |
}
|
| 405 |
static void privileges_hooks(apr_pool_t *pool)
|
| 406 |
{
|
| 407 |
ap_hook_post_read_request(privileges_req, NULL, NULL,
|
| 408 |
APR_HOOK_REALLY_FIRST);
|
| 409 |
ap_hook_header_parser(privileges_req, NULL, NULL, APR_HOOK_REALLY_FIRST);
|
| 410 |
ap_hook_drop_privileges(privileges_drop_first, NULL, NULL, APR_HOOK_FIRST);
|
| 411 |
ap_hook_drop_privileges(privileges_drop_last, NULL, NULL, APR_HOOK_LAST);
|
| 412 |
ap_hook_post_config(privileges_postconf, NULL, NULL, APR_HOOK_MIDDLE);
|
| 413 |
ap_hook_pre_config(privileges_init, NULL, NULL, APR_HOOK_FIRST);
|
| 414 |
}
|
| 415 |
|
| 416 |
static const char *vhost_user(cmd_parms *cmd, void *dir, const char *arg)
|
| 417 |
{
|
| 418 |
priv_cfg *cfg = ap_get_module_config(cmd->server->module_config,
|
| 419 |
&privileges_module);
|
| 420 |
cfg->uid = ap_uname2id(arg);
|
| 421 |
if (cfg->uid == 0) {
|
| 422 |
return apr_pstrcat(cmd->pool, "Invalid userid for VHostUser: ",
|
| 423 |
arg, NULL);
|
| 424 |
}
|
| 425 |
return NULL;
|
| 426 |
}
|
| 427 |
static const char *vhost_group(cmd_parms *cmd, void *dir, const char *arg)
|
| 428 |
{
|
| 429 |
priv_cfg *cfg = ap_get_module_config(cmd->server->module_config,
|
| 430 |
&privileges_module);
|
| 431 |
cfg->gid = ap_gname2id(arg);
|
| 432 |
if (cfg->uid == 0) {
|
| 433 |
return apr_pstrcat(cmd->pool, "Invalid groupid for VHostGroup: ",
|
| 434 |
arg, NULL);
|
| 435 |
}
|
| 436 |
return NULL;
|
| 437 |
}
|
| 438 |
static const char *vhost_secure(cmd_parms *cmd, void *dir, int arg)
|
| 439 |
{
|
| 440 |
priv_cfg *cfg = ap_get_module_config(cmd->server->module_config,
|
| 441 |
&privileges_module);
|
| 442 |
if (!arg) {
|
| 443 |
/* add basic privileges, excluding those covered by cgimode */
|
| 444 |
CFG_CHECK(priv_addset(cfg->priv, PRIV_FILE_LINK_ANY));
|
| 445 |
CFG_CHECK(priv_addset(cfg->priv, PRIV_PROC_INFO));
|
| 446 |
CFG_CHECK(priv_addset(cfg->priv, PRIV_PROC_SESSION));
|
| 447 |
}
|
| 448 |
return NULL;
|
| 449 |
}
|
| 450 |
static const char *vhost_cgimode(cmd_parms *cmd, void *dir, const char *arg)
|
| 451 |
{
|
| 452 |
priv_cfg *cfg = ap_get_module_config(cmd->server->module_config,
|
| 453 |
&privileges_module);
|
| 454 |
if (!strcasecmp(arg, "on")) {
|
| 455 |
/* default - nothing to do */
|
| 456 |
}
|
| 457 |
else if (!strcasecmp(arg, "off")) {
|
| 458 |
/* drop fork+exec privs */
|
| 459 |
CFG_CHECK(priv_delset(cfg->priv, PRIV_PROC_FORK));
|
| 460 |
CFG_CHECK(priv_delset(cfg->priv, PRIV_PROC_EXEC));
|
| 461 |
}
|
| 462 |
else if (!strcasecmp(arg, "secure")) {
|
| 463 |
/* deny privileges to CGI procs */
|
| 464 |
CFG_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_FORK));
|
| 465 |
CFG_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_EXEC));
|
| 466 |
CFG_CHECK(priv_delset(cfg->child_priv, PRIV_FILE_LINK_ANY));
|
| 467 |
CFG_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_INFO));
|
| 468 |
CFG_CHECK(priv_delset(cfg->child_priv, PRIV_PROC_SESSION));
|
| 469 |
}
|
| 470 |
else {
|
| 471 |
return "VHostCGIMode must be On, Off or Secure";
|
| 472 |
}
|
| 473 |
|
| 474 |
return NULL;
|
| 475 |
}
|
| 476 |
static const char *dtraceenable(cmd_parms *cmd, void *dir, int arg)
|
| 477 |
{
|
| 478 |
const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
|
| 479 |
if (err != NULL) {
|
| 480 |
return err;
|
| 481 |
}
|
| 482 |
dtrace_enabled = arg;
|
| 483 |
return NULL;
|
| 484 |
}
|
| 485 |
|
| 486 |
static const char *privs_mode(cmd_parms *cmd, void *dir, const char *arg)
|
| 487 |
{
|
| 488 |
priv_mode mode = PRIV_UNSET;
|
| 489 |
if (!strcasecmp(arg, "FAST")) {
|
| 490 |
mode = PRIV_FAST;
|
| 491 |
}
|
| 492 |
else if (!strcasecmp(arg, "SECURE")) {
|
| 493 |
mode = PRIV_SECURE;
|
| 494 |
}
|
| 495 |
else if (!strcasecmp(arg, "SELECTIVE")) {
|
| 496 |
mode = PRIV_SELECTIVE;
|
| 497 |
}
|
| 498 |
|
| 499 |
if (cmd->path) {
|
| 500 |
/* In a directory context, set the per_dir_config */
|
| 501 |
priv_dir_cfg *cfg = dir;
|
| 502 |
cfg->mode = mode;
|
| 503 |
if ((mode == PRIV_UNSET) || (mode == PRIV_SELECTIVE)) {
|
| 504 |
return "PrivilegesMode in a Directory context must be FAST or SECURE";
|
| 505 |
}
|
| 506 |
}
|
| 507 |
else {
|
| 508 |
/* In a global or vhost context, set the server config */
|
| 509 |
priv_cfg *cfg = ap_get_module_config(cmd->server->module_config,
|
| 510 |
&privileges_module);
|
| 511 |
cfg->mode = mode;
|
| 512 |
if (mode == PRIV_UNSET) {
|
| 513 |
return "PrivilegesMode must be FAST, SECURE or SELECTIVE";
|
| 514 |
}
|
| 515 |
}
|
| 516 |
return NULL;
|
| 517 |
}
|
| 518 |
|
| 519 |
#ifdef BIG_SECURITY_HOLE
|
| 520 |
static const char *vhost_privs(cmd_parms *cmd, void *dir, const char *arg)
|
| 521 |
{
|
| 522 |
priv_cfg *cfg = ap_get_module_config(cmd->server->module_config,
|
| 523 |
&privileges_module);
|
| 524 |
const char *priv = arg;
|
| 525 |
|
| 526 |
if (*priv == '-') {
|
| 527 |
CFG_CHECK(priv_delset(cfg->priv, priv+1));
|
| 528 |
}
|
| 529 |
else if (*priv == '+') {
|
| 530 |
CFG_CHECK(priv_addset(cfg->priv, priv+1));
|
| 531 |
}
|
| 532 |
else {
|
| 533 |
priv_emptyset(cfg->priv);
|
| 534 |
CFG_CHECK(priv_addset(cfg->priv, priv));
|
| 535 |
}
|
| 536 |
return NULL;
|
| 537 |
}
|
| 538 |
static const char *vhost_cgiprivs(cmd_parms *cmd, void *dir, const char *arg)
|
| 539 |
{
|
| 540 |
priv_cfg *cfg = ap_get_module_config(cmd->server->module_config,
|
| 541 |
&privileges_module);
|
| 542 |
const char *priv = arg;
|
| 543 |
if (*priv == '-') {
|
| 544 |
CFG_CHECK(priv_delset(cfg->child_priv, priv+1));
|
| 545 |
}
|
| 546 |
else if (*priv == '+') {
|
| 547 |
CFG_CHECK(priv_addset(cfg->child_priv, priv+1));
|
| 548 |
}
|
| 549 |
else {
|
| 550 |
priv_emptyset(cfg->child_priv);
|
| 551 |
CFG_CHECK(priv_addset(cfg->child_priv, priv));
|
| 552 |
}
|
| 553 |
return NULL;
|
| 554 |
}
|
| 555 |
#endif
|
| 556 |
static const command_rec privileges_cmds[] = {
|
| 557 |
AP_INIT_TAKE1("VHostUser", vhost_user, NULL, RSRC_CONF,
|
| 558 |
"Userid under which the virtualhost will run"),
|
| 559 |
AP_INIT_TAKE1("VHostGroup", vhost_group, NULL, RSRC_CONF,
|
| 560 |
"Group under which the virtualhost will run"),
|
| 561 |
AP_INIT_FLAG("VHostSecure", vhost_secure, NULL, RSRC_CONF,
|
| 562 |
"Run in enhanced security mode (default ON)"),
|
| 563 |
AP_INIT_TAKE1("VHostCGIMode", vhost_cgimode, NULL, RSRC_CONF,
|
| 564 |
"Enable fork+exec for this virtualhost (Off|Secure|On)"),
|
| 565 |
AP_INIT_FLAG("DTracePrivileges", dtraceenable, NULL, RSRC_CONF,
|
| 566 |
"Enable DTrace"),
|
| 567 |
AP_INIT_TAKE1("PrivilegesMode", privs_mode, NULL, RSRC_CONF|ACCESS_CONF,
|
| 568 |
"tradeoff performance vs security (fast or secure)"),
|
| 569 |
#ifdef BIG_SECURITY_HOLE
|
| 570 |
AP_INIT_ITERATE("VHostPrivs", vhost_privs, NULL, RSRC_CONF,
|
| 571 |
"Privileges available in the (virtual) server"),
|
| 572 |
AP_INIT_ITERATE("VHostCGIPrivs", vhost_cgiprivs, NULL, RSRC_CONF,
|
| 573 |
"Privileges available to external programs"),
|
| 574 |
#endif
|
| 575 |
{NULL}
|
| 576 |
};
|
| 577 |
module AP_MODULE_DECLARE_DATA privileges_module = {
|
| 578 |
STANDARD20_MODULE_STUFF,
|
| 579 |
privileges_create_dir_cfg,
|
| 580 |
privileges_merge_dir_cfg,
|
| 581 |
privileges_create_cfg,
|
| 582 |
privileges_merge_cfg,
|
| 583 |
privileges_cmds,
|
| 584 |
privileges_hooks
|
| 585 |
};
|
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