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File unixd.h

/* 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.
 */

/**
 * @file  unixd.h
 * @brief common stuff that unix MPMs will want
 *
 * @addtogroup APACHE_OS_UNIX
 * @{
 */

#ifndef UNIXD_H
#define UNIXD_H

#include "httpd.h"
#include "http_config.h"
#include "scoreboard.h"
#include "ap_listen.h"
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif
#include "apr_hooks.h"
#include "apr_thread_proc.h"
#include "apr_proc_mutex.h"
#include "apr_global_mutex.h"

#include <pwd.h>
#include <grp.h>
#if APR_HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_IPC_H
#include <sys/ipc.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    uid_t uid;
    gid_t gid;
    int userdir;
} ap_unix_identity_t;

AP_DECLARE_HOOK(ap_unix_identity_t *, get_suexec_identity,(const request_rec *r))

/* Default user name and group name. These may be specified as numbers by
 * placing a # before a number */

#ifndef DEFAULT_USER
#define DEFAULT_USER "#-1"
#endif
#ifndef DEFAULT_GROUP
#define DEFAULT_GROUP "#-1"
#endif

typedef struct {
    const char *user_name;
    const char *group_name;
    uid_t user_id;
    gid_t group_id;
    int suexec_enabled;
    const char *chroot_dir;
    const char *suexec_disabled_reason; /* suitable msg if !suexec_enabled */
} unixd_config_rec;
AP_DECLARE_DATA extern unixd_config_rec ap_unixd_config;

#if defined(RLIMIT_CPU) || defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_NPROC) || defined(RLIMIT_AS)
AP_DECLARE(void) ap_unixd_set_rlimit(cmd_parms *cmd, struct rlimit **plimit,
                                     const char *arg,
                                     const char * arg2, int type);
#endif

/**
 * One of the functions to set mutex permissions should be called in
 * the parent process on platforms that switch identity when the
 * server is started as root.
 * If the child init logic is performed before switching identity
 * (e.g., MPM setup for an accept mutex), it should only be called
 * for SysV semaphores.  Otherwise, it is safe to call it for all
 * mutex types.
 */
AP_DECLARE(apr_status_t) ap_unixd_set_proc_mutex_perms(apr_proc_mutex_t *pmutex);
AP_DECLARE(apr_status_t) ap_unixd_set_global_mutex_perms(apr_global_mutex_t *gmutex);
AP_DECLARE(apr_status_t) ap_unixd_accept(void **accepted, ap_listen_rec *lr, apr_pool_t *ptrans);

#ifdef HAVE_KILLPG
#define ap_unixd_killpg(x, y)   (killpg ((x), (y)))
#define ap_os_killpg(x, y)      (killpg ((x), (y)))
#else /* HAVE_KILLPG */
#define ap_unixd_killpg(x, y)   (kill (-(x), (y)))
#define ap_os_killpg(x, y)      (kill (-(x), (y)))
#endif /* HAVE_KILLPG */

typedef struct {
    void            *baton;  /* MPM's */

/* volatile because they're updated from signals' handlers */
    int volatile    mpm_state;
    int volatile    shutdown_pending;
    int volatile    restart_pending;
    int volatile    is_ungraceful;

ap_generation_t my_generation;
    int             module_loads;
    int             was_graceful;

/*
     * Current number of listeners buckets and maximum reached across
     * restarts (to size retained data according to dynamic num_buckets,
     * eg. idle_spawn_rate).
     */
    int num_buckets, max_buckets;
} ap_unixd_mpm_retained_data;

AP_DECLARE(ap_unixd_mpm_retained_data *) ap_unixd_mpm_get_retained_data(void);
AP_DECLARE(void) ap_unixd_mpm_set_signals(apr_pool_t *pconf, int once_process);

#ifdef __cplusplus
}
#endif

#endif
/** @} */

Name	Type	Size	Permission	Last Modified	Actions
.	DIR	-	drwxr-xr-x	2026-06-11 09:43:39
..	DIR	-	drwxr-xr-x	2026-07-10 11:13:14
.mmn	text/plain	14 B	-rw-r--r--	2026-06-10 03:43:38
ap_compat.h	text/plain	1.05 KB	-rw-r--r--	2026-06-10 03:43:35
ap_config.h	text/x-c	6.45 KB	-rw-r--r--	2026-06-10 03:43:35
ap_config_auto.h	text/plain	10.08 KB	-rw-r--r--	2026-06-10 03:43:35
ap_config_layout.h	text/plain	2.52 KB	-rw-r--r--	2026-06-10 03:43:38
ap_expr.h	text/x-c	13.87 KB	-rw-r--r--	2026-06-10 03:43:35
ap_hooks.h	text/x-c	5.85 KB	-rw-r--r--	2026-06-10 03:43:35
ap_listen.h	text/x-c	6.19 KB	-rw-r--r--	2026-06-10 03:43:35
ap_mmn.h	text/plain	39.59 KB	-rw-r--r--	2026-06-10 03:43:35
ap_mpm.h	text/x-c	10.51 KB	-rw-r--r--	2026-06-10 03:43:35
ap_provider.h	text/x-c	3.45 KB	-rw-r--r--	2026-06-10 03:43:36
ap_regex.h	text/x-c	11.26 KB	-rw-r--r--	2026-06-10 03:43:36
ap_regkey.h	text/x-c	8.97 KB	-rw-r--r--	2026-06-10 03:43:36
ap_release.h	text/plain	3.07 KB	-rw-r--r--	2026-06-10 03:43:36
ap_slotmem.h	text/x-c	7.07 KB	-rw-r--r--	2026-06-10 03:43:36
ap_socache.h	text/x-c	9.18 KB	-rw-r--r--	2026-06-10 03:43:36
apache_noprobes.h	text/plain	15.59 KB	-rw-r--r--	2026-06-10 03:43:36
cache_common.h	text/plain	1.97 KB	-rw-r--r--	2026-06-10 03:43:37
heartbeat.h	text/x-c	1.56 KB	-rw-r--r--	2026-06-10 03:43:36
http_config.h	text/x-c	56.37 KB	-rw-r--r--	2026-06-10 03:43:36
http_connection.h	text/x-c	6.97 KB	-rw-r--r--	2026-06-10 03:43:36
http_core.h	text/x-c	36.4 KB	-rw-r--r--	2026-06-10 03:43:36
http_log.h	text/x-c	36.01 KB	-rw-r--r--	2026-06-10 03:43:36
http_main.h	text/x-c	3.17 KB	-rw-r--r--	2026-06-10 03:43:36
http_protocol.h	text/x-c	41.41 KB	-rw-r--r--	2026-06-10 03:43:36
http_request.h	text/x-c	25.72 KB	-rw-r--r--	2026-06-10 03:43:36
http_ssl.h	text/x-c	14.62 KB	-rw-r--r--	2026-06-10 03:43:36
http_vhost.h	text/x-c	4.49 KB	-rw-r--r--	2026-06-10 03:43:36
httpd.h	text/x-c	97.19 KB	-rw-r--r--	2026-06-10 03:43:36
mod_auth.h	text/x-c	4.42 KB	-rw-r--r--	2026-06-10 03:43:36
mod_cache.h	text/x-c	7.09 KB	-rw-r--r--	2026-06-10 03:43:37
mod_cgi.h	text/x-c	2.44 KB	-rw-r--r--	2026-06-10 03:43:37
mod_core.h	text/x-c	3.33 KB	-rw-r--r--	2026-06-10 03:43:36
mod_dav.h	text/x-c	97.85 KB	-rw-r--r--	2026-06-10 03:43:37
mod_dbd.h	text/x-c	4.06 KB	-rw-r--r--	2026-06-10 03:43:37
mod_http2.h	text/x-c	4.59 KB	-rw-r--r--	2026-06-10 03:43:37
mod_include.h	text/x-c	3.97 KB	-rw-r--r--	2026-06-10 03:43:37
mod_log_config.h	text/x-c	2.43 KB	-rw-r--r--	2026-06-10 03:43:37
mod_proxy.h	text/x-c	65.8 KB	-rw-r--r--	2026-06-10 03:43:37
mod_request.h	text/x-c	1.59 KB	-rw-r--r--	2026-06-10 03:43:36
mod_rewrite.h	text/x-c	1.36 KB	-rw-r--r--	2026-06-10 03:43:37
mod_session.h	text/x-c	6.61 KB	-rw-r--r--	2026-06-10 03:43:37
mod_so.h	text/x-c	1.2 KB	-rw-r--r--	2026-06-10 03:43:37
mod_ssl.h	text/x-c	4.87 KB	-rw-r--r--	2026-06-10 03:43:37
mod_ssl_openssl.h	text/x-c	4.8 KB	-rw-r--r--	2026-06-10 03:43:37
mod_status.h	text/x-c	2.38 KB	-rw-r--r--	2026-06-10 03:43:37
mod_unixd.h	text/x-c	1.09 KB	-rw-r--r--	2026-06-10 03:43:37
mod_watchdog.h	text/x-c	7.34 KB	-rw-r--r--	2026-06-10 03:43:37
mod_xml2enc.h	text/plain	2.25 KB	-rw-r--r--	2026-06-10 03:43:37
mpm_common.h	text/x-c	17.09 KB	-rw-r--r--	2026-06-10 03:43:36
os.h	text/x-c	1.63 KB	-rw-r--r--	2026-06-10 03:43:37
scoreboard.h	text/x-c	9.94 KB	-rw-r--r--	2026-06-10 03:43:36
unixd.h	text/x-c	4.14 KB	-rw-r--r--	2026-06-10 03:43:37
util_cfgtree.h	text/x-c	3.08 KB	-rw-r--r--	2026-06-10 03:43:36
util_charset.h	text/x-c	2.21 KB	-rw-r--r--	2026-06-10 03:43:36
util_cookies.h	text/x-c	4.84 KB	-rw-r--r--	2026-06-10 03:43:36
util_ebcdic.h	text/x-c	2.69 KB	-rw-r--r--	2026-06-10 03:43:36
util_fcgi.h	text/x-c	9.75 KB	-rw-r--r--	2026-06-10 03:43:36
util_filter.h	text/x-c	25.84 KB	-rw-r--r--	2026-06-10 03:43:36
util_ldap.h	text/x-c	17.94 KB	-rw-r--r--	2026-06-10 03:43:36
util_md5.h	text/x-c	2.12 KB	-rw-r--r--	2026-06-10 03:43:36
util_mutex.h	text/x-c	9.07 KB	-rw-r--r--	2026-06-10 03:43:36
util_script.h	text/x-c	9.63 KB	-rw-r--r--	2026-06-10 03:43:37
util_time.h	text/x-c	4.19 KB	-rw-r--r--	2026-06-10 03:43:37
util_varbuf.h	text/x-c	8.09 KB	-rw-r--r--	2026-06-10 03:43:37
util_xml.h	text/x-c	1.31 KB	-rw-r--r--	2026-06-10 03:43:37

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