modules/proxy/mod_proxy_fdpass.c

	mod_proxy_fdpass.c revision 7184de27ec1d62a83c41cdeac0953ca9fd661e8c
842ae4bd224140319ae7feec1872b93dfd491143fielding/* Licensed to the Apache Software Foundation (ASF) under one or more
842ae4bd224140319ae7feec1872b93dfd491143fielding * contributor license agreements.  See the NOTICE file distributed with
842ae4bd224140319ae7feec1872b93dfd491143fielding * this work for additional information regarding copyright ownership.
842ae4bd224140319ae7feec1872b93dfd491143fielding * The ASF licenses this file to You under the Apache License, Version 2.0
842ae4bd224140319ae7feec1872b93dfd491143fielding * (the "License"); you may not use this file except in compliance with
842ae4bd224140319ae7feec1872b93dfd491143fielding * the License.  You may obtain a copy of the License at
2d2eda71267231c2526be701fe655db125852c1ffielding *
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd *     http://www.apache.org/licenses/LICENSE-2.0
2d2eda71267231c2526be701fe655db125852c1ffielding *
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * Unless required by applicable law or agreed to in writing, software
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * distributed under the License is distributed on an "AS IS" BASIS,
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * See the License for the specific language governing permissions and
ce9621257ef9e54c1bbe5ad8a5f445a1f211c2dcnd * limitations under the License.
2d2eda71267231c2526be701fe655db125852c1ffielding */
2d2eda71267231c2526be701fe655db125852c1ffielding
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh#include "mod_proxy.h"
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh#include <sys/types.h>
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh#include <sys/socket.h>
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh#include <sys/un.h>
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh#ifndef CMSG_DATA
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh#error This module only works on unix platforms with the correct OS support
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh#endif
2d2eda71267231c2526be701fe655db125852c1ffielding
2d2eda71267231c2526be701fe655db125852c1ffielding#include "apr_version.h"
2d2eda71267231c2526be701fe655db125852c1ffielding#if APR_MAJOR_VERSION < 2
fcc25eda7b150e226d3c1cdaea66a943d3fdee4erbb/* for apr_wait_for_io_or_timeout */
ab5581cc78e9d865b0a6ab1404c53347b3276968rbb#include "apr_support.h"
92f3af936ce61f25358a3ee4f28df2f6d62040dfdreid#endif
fcc25eda7b150e226d3c1cdaea66a943d3fdee4erbb
c9a95767fbf0f5fb0976a06b97a256033925e433rbb#include "mod_proxy_fdpass.h"
fd0edaa8e3d4dd67d0604ccef2e96b071db96643fielding
2d2eda71267231c2526be701fe655db125852c1ffieldingmodule AP_MODULE_DECLARE_DATA proxy_fdpass_module;
2d2eda71267231c2526be701fe655db125852c1ffielding
2d2eda71267231c2526be701fe655db125852c1ffieldingstatic int proxy_fdpass_canon(request_rec *r, char *url)
2d2eda71267231c2526be701fe655db125852c1ffielding{
52de7a47876ce1748910cf3a0ee97f78842fab54rederpj    const char *path;
52de7a47876ce1748910cf3a0ee97f78842fab54rederpj
52de7a47876ce1748910cf3a0ee97f78842fab54rederpj    if (strncasecmp(url, "fd://", 5) == 0) {
52de7a47876ce1748910cf3a0ee97f78842fab54rederpj        url += 5;
52de7a47876ce1748910cf3a0ee97f78842fab54rederpj    }
52de7a47876ce1748910cf3a0ee97f78842fab54rederpj    else {
52de7a47876ce1748910cf3a0ee97f78842fab54rederpj        return DECLINED;
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh    }
fd492f9543f14fb5bae78e04b135c3448eb9cc56rbb
fd492f9543f14fb5bae78e04b135c3448eb9cc56rbb    path = ap_server_root_relative(r->pool, url);
fd492f9543f14fb5bae78e04b135c3448eb9cc56rbb
fd492f9543f14fb5bae78e04b135c3448eb9cc56rbb    r->filename = apr_pstrcat(r->pool, "proxy:fd://", path, NULL);
2d2eda71267231c2526be701fe655db125852c1ffielding
2d2eda71267231c2526be701fe655db125852c1ffielding    ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
2d2eda71267231c2526be701fe655db125852c1ffielding                  "proxy: FD: set r->filename to %s", r->filename);
2d2eda71267231c2526be701fe655db125852c1ffielding    return OK;
2d2eda71267231c2526be701fe655db125852c1ffielding}
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb/* TODO: In APR 2.x: Extend apr_sockaddr_t to possibly be a path !!! */
61fd0cab072a05b855cbef9c585702401ac5ae29rbbstatic apr_status_t socket_connect_un(apr_socket_t *sock,
61fd0cab072a05b855cbef9c585702401ac5ae29rbb                                      struct sockaddr_un *sa)
61fd0cab072a05b855cbef9c585702401ac5ae29rbb{
2d2eda71267231c2526be701fe655db125852c1ffielding    apr_status_t rv;
2d2eda71267231c2526be701fe655db125852c1ffielding    apr_os_sock_t rawsock;
8af88bd6958b80c224e964892b8237720b13ab1ajerenkrantz    apr_interval_time_t t;
8af88bd6958b80c224e964892b8237720b13ab1ajerenkrantz
8af88bd6958b80c224e964892b8237720b13ab1ajerenkrantz    rv = apr_os_sock_get(&rawsock, sock);
8af88bd6958b80c224e964892b8237720b13ab1ajerenkrantz    if (rv != APR_SUCCESS) {
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp        return rv;
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp    }
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp    rv = apr_socket_timeout_get(sock, &t);
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp    if (rv != APR_SUCCESS) {
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp        return rv;
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp    }
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp    do {
50e60f30bdc074fbc887f0b98f4d570457ac97c9brianp        rv = connect(rawsock, (struct sockaddr*)sa,
8af88bd6958b80c224e964892b8237720b13ab1ajerenkrantz                               sizeof(*sa) + strlen(sa->sun_path));
bfb62a96023822c56c9120e4ee627d4091cc59c2rbb    } while (rv == -1 && errno == EINTR);
bfb62a96023822c56c9120e4ee627d4091cc59c2rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    if ((rv == -1) && (errno == EINPROGRESS || errno == EALREADY)
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        && (t > 0)) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb#if APR_MAJOR_VERSION < 2
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        rv = apr_wait_for_io_or_timeout(NULL, sock, 0);
61fd0cab072a05b855cbef9c585702401ac5ae29rbb#else
3d96ee83babeec32482c9082c9426340cee8c44dwrowe        rv = apr_socket_wait(sock, APR_WAIT_WRITE);
2d2eda71267231c2526be701fe655db125852c1ffielding#endif
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        if (rv != APR_SUCCESS) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb            return rv;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    if (rv == -1 && errno != EISCONN) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        return errno;
2d2eda71267231c2526be701fe655db125852c1ffielding    }
3d96ee83babeec32482c9082c9426340cee8c44dwrowe
2d2eda71267231c2526be701fe655db125852c1ffielding    return APR_SUCCESS;
2d2eda71267231c2526be701fe655db125852c1ffielding}
2d2eda71267231c2526be701fe655db125852c1ffielding
2d2eda71267231c2526be701fe655db125852c1ffieldingstatic apr_status_t get_socket_from_path(apr_pool_t *p,
000b67449410515eac43e76ef6667915bfd4d2abgstein                                         const char* path,
2d2eda71267231c2526be701fe655db125852c1ffielding                                         apr_socket_t **out_sock)
2d2eda71267231c2526be701fe655db125852c1ffielding{
2d2eda71267231c2526be701fe655db125852c1ffielding    struct sockaddr_un sa;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    apr_socket_t *s;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    apr_status_t rv;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    *out_sock = NULL;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    rv = apr_socket_create(&s, AF_UNIX, SOCK_STREAM, 0, p);
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein    if (rv != APR_SUCCESS) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        return rv;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    sa.sun_family = AF_UNIX;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    apr_cpystrn(sa.sun_path, path, sizeof(sa.sun_path));
3d96ee83babeec32482c9082c9426340cee8c44dwrowe
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein    rv = socket_connect_un(s, &sa);
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    if (rv != APR_SUCCESS) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        return rv;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    *out_sock = s;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    return APR_SUCCESS;
3d96ee83babeec32482c9082c9426340cee8c44dwrowe}
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein
c9a95767fbf0f5fb0976a06b97a256033925e433rbb
c9a95767fbf0f5fb0976a06b97a256033925e433rbbstatic apr_status_t send_socket(apr_pool_t *p,
c9a95767fbf0f5fb0976a06b97a256033925e433rbb                                apr_socket_t *s,
cf8d02ea0c91653917b044529f3133c5a1bb9200fielding                                apr_socket_t *outbound)
c9a95767fbf0f5fb0976a06b97a256033925e433rbb{
c9a95767fbf0f5fb0976a06b97a256033925e433rbb    apr_status_t rv;
c9a95767fbf0f5fb0976a06b97a256033925e433rbb    apr_os_sock_t rawsock;
c9a95767fbf0f5fb0976a06b97a256033925e433rbb    apr_os_sock_t srawsock;
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh    struct msghdr msg;
c9a95767fbf0f5fb0976a06b97a256033925e433rbb    struct cmsghdr *cmsg;
c9a95767fbf0f5fb0976a06b97a256033925e433rbb    struct iovec iov;
d82d78a97558238d16c52ec5278fe921bb7d7ec3brianp    char b = '\0';
d82d78a97558238d16c52ec5278fe921bb7d7ec3brianp
d82d78a97558238d16c52ec5278fe921bb7d7ec3brianp    rv = apr_os_sock_get(&rawsock, outbound);
d82d78a97558238d16c52ec5278fe921bb7d7ec3brianp    if (rv != APR_SUCCESS) {
d82d78a97558238d16c52ec5278fe921bb7d7ec3brianp        return rv;
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh    }
d82d78a97558238d16c52ec5278fe921bb7d7ec3brianp
d82d78a97558238d16c52ec5278fe921bb7d7ec3brianp    rv = apr_os_sock_get(&srawsock, s);
c9a95767fbf0f5fb0976a06b97a256033925e433rbb    if (rv != APR_SUCCESS) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        return rv;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    memset(&msg, 0, sizeof(msg));
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    msg.msg_iov = &iov;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    msg.msg_iovlen = 1;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
3d96ee83babeec32482c9082c9426340cee8c44dwrowe    iov.iov_base = &b;
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein    iov.iov_len = 1;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    cmsg = apr_palloc(p, sizeof(*cmsg) + sizeof(rawsock));
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh    cmsg->cmsg_len = sizeof(*cmsg) + sizeof(rawsock);
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    cmsg->cmsg_level = SOL_SOCKET;
3d96ee83babeec32482c9082c9426340cee8c44dwrowe    cmsg->cmsg_type = SCM_RIGHTS;
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    memcpy(CMSG_DATA(cmsg), &rawsock, sizeof(rawsock));
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    msg.msg_control = cmsg;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    msg.msg_controllen = cmsg->cmsg_len;
3d96ee83babeec32482c9082c9426340cee8c44dwrowe
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein    rv = sendmsg(srawsock, &msg, 0);
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    if (rv == -1) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        return errno;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
78ae1cbba5a848a24ca551629bbf0a90d2b931f0stas
78ae1cbba5a848a24ca551629bbf0a90d2b931f0stas    return APR_SUCCESS;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb}
3d96ee83babeec32482c9082c9426340cee8c44dwrowe
2d2eda71267231c2526be701fe655db125852c1ffieldingstatic int proxy_fdpass_handler(request_rec *r, proxy_worker *worker,
2d2eda71267231c2526be701fe655db125852c1ffielding                              proxy_server_conf *conf,
2d2eda71267231c2526be701fe655db125852c1ffielding                              char *url, const char *proxyname,
2d2eda71267231c2526be701fe655db125852c1ffielding                              apr_port_t proxyport)
2d2eda71267231c2526be701fe655db125852c1ffielding{
2d2eda71267231c2526be701fe655db125852c1ffielding    apr_status_t rv;
2d2eda71267231c2526be701fe655db125852c1ffielding    apr_socket_t *sock;
2d2eda71267231c2526be701fe655db125852c1ffielding    apr_socket_t *clientsock;
2d2eda71267231c2526be701fe655db125852c1ffielding
2d2eda71267231c2526be701fe655db125852c1ffielding    if (strncasecmp(url, "fd://", 5) == 0) {
2d2eda71267231c2526be701fe655db125852c1ffielding        url += 5;
2d2eda71267231c2526be701fe655db125852c1ffielding    }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    else {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        return DECLINED;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    }
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    rv = get_socket_from_path(r->pool, url, &sock);
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    if (rv != APR_SUCCESS) {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
61fd0cab072a05b855cbef9c585702401ac5ae29rbb                      "proxy: FD: Failed to connect to '%s'",
3d96ee83babeec32482c9082c9426340cee8c44dwrowe                      url);
1ccd992d37d62c8cb2056126f2234f64ec189bfddougm        return HTTP_INTERNAL_SERVER_ERROR;
7bdef86e15d47d16dcbe7a5611683191774bd5fbgstein    }
23ff73a56371e21f16744cb94d06399b877829f1rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb    {
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        int status;
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        const char *flush_method = worker->s->flusher ? worker->s->flusher : "flush";
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        proxy_fdpass_flush *flush = ap_lookup_provider(PROXY_FDPASS_FLUSHER,
61fd0cab072a05b855cbef9c585702401ac5ae29rbb                                                       flush_method, "0");
61fd0cab072a05b855cbef9c585702401ac5ae29rbb
61fd0cab072a05b855cbef9c585702401ac5ae29rbb        if (!flush) {
3d96ee83babeec32482c9082c9426340cee8c44dwrowe            ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
2d2eda71267231c2526be701fe655db125852c1ffielding                          "proxy: FD: Unable to find configured flush "
23ff73a56371e21f16744cb94d06399b877829f1rbb                          "provider '%s'", flush_method);
2d2eda71267231c2526be701fe655db125852c1ffielding            return HTTP_INTERNAL_SERVER_ERROR;
62db15de4c1f335a64d45821796ae197cff94ef8rbb        }
62db15de4c1f335a64d45821796ae197cff94ef8rbb
62db15de4c1f335a64d45821796ae197cff94ef8rbb        status = flush->flusher(r);
62db15de4c1f335a64d45821796ae197cff94ef8rbb        if (status) {
62db15de4c1f335a64d45821796ae197cff94ef8rbb            return status;
62db15de4c1f335a64d45821796ae197cff94ef8rbb        }
62db15de4c1f335a64d45821796ae197cff94ef8rbb    }
62db15de4c1f335a64d45821796ae197cff94ef8rbb
62db15de4c1f335a64d45821796ae197cff94ef8rbb    /* XXXXX: THIS IS AN EVIL HACK */
48d2edbfb84e5559b5da0f8d614ccab805cc67a8rbb    /* There should really be a (documented) public API for this ! */
62db15de4c1f335a64d45821796ae197cff94ef8rbb    clientsock = ap_get_core_module_config(r->connection->conn_config);
62db15de4c1f335a64d45821796ae197cff94ef8rbb
62db15de4c1f335a64d45821796ae197cff94ef8rbb    rv = send_socket(r->pool, sock, clientsock);
62db15de4c1f335a64d45821796ae197cff94ef8rbb    if (rv != APR_SUCCESS) {
62db15de4c1f335a64d45821796ae197cff94ef8rbb        ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
62db15de4c1f335a64d45821796ae197cff94ef8rbb                      "proxy: FD: send_socket failed:");
62db15de4c1f335a64d45821796ae197cff94ef8rbb        return HTTP_INTERNAL_SERVER_ERROR;
62db15de4c1f335a64d45821796ae197cff94ef8rbb    }
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh
62db15de4c1f335a64d45821796ae197cff94ef8rbb    {
62db15de4c1f335a64d45821796ae197cff94ef8rbb        apr_socket_t *dummy;
62db15de4c1f335a64d45821796ae197cff94ef8rbb        /* Create a dummy unconnected socket, and set it as the one we were
48d2edbfb84e5559b5da0f8d614ccab805cc67a8rbb         * connected to, so that when the core closes it, it doesn't close
48d2edbfb84e5559b5da0f8d614ccab805cc67a8rbb         * the tcp connection to the client.
62db15de4c1f335a64d45821796ae197cff94ef8rbb         */
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar        rv = apr_socket_create(&dummy, APR_INET, SOCK_STREAM, APR_PROTO_TCP,
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar                               r->connection->pool);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar        if (rv != APR_SUCCESS) {
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar            ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar                          "proxy: FD: failed to create dummy socket");
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar            return HTTP_INTERNAL_SERVER_ERROR;
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar        }
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar        ap_set_core_module_config(r->connection->conn_config, dummy);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    }
3d96ee83babeec32482c9082c9426340cee8c44dwrowe
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh    return OK;
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh}
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianhstatic int standard_flush(request_rec *r)
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh{
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh    int status;
9d129b55f5a43abf43865c6b0eb6dd19bc22aba8ianh    apr_bucket_brigade *bb;
3d96ee83babeec32482c9082c9426340cee8c44dwrowe    apr_bucket *e;
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
599c5abcc7fec60611956f56b732eca033c287d2pquerna    r->connection->keepalive = AP_CONN_CLOSE;
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    e = apr_bucket_flush_create(r->connection->bucket_alloc);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    APR_BRIGADE_INSERT_TAIL(bb, e);
41287245b1632a4722b55f6dfe5fcf81f361f043wrowe
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    status = ap_pass_brigade(r->output_filters, bb);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
3d96ee83babeec32482c9082c9426340cee8c44dwrowe    if (status != OK) {
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar        ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r,
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar                      "proxy: FD: ap_pass_brigade failed:");
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar        return status;
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    }
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    return OK;
41287245b1632a4722b55f6dfe5fcf81f361f043wrowe}
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
3d96ee83babeec32482c9082c9426340cee8c44dwrowestatic const proxy_fdpass_flush builtin_flush =
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar{
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    "flush",
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    &standard_flush,
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    NULL
41287245b1632a4722b55f6dfe5fcf81f361f043wrowe};
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coarstatic void register_hooks(apr_pool_t *p)
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar{
3d96ee83babeec32482c9082c9426340cee8c44dwrowe    ap_register_provider(p, PROXY_FDPASS_FLUSHER, "flush", "0", &builtin_flush);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    proxy_hook_scheme_handler(proxy_fdpass_handler, NULL, NULL, APR_HOOK_FIRST);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    proxy_hook_canon_handler(proxy_fdpass_canon, NULL, NULL, APR_HOOK_FIRST);
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar}
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coarAP_DECLARE_MODULE(proxy_fdpass) = {
41287245b1632a4722b55f6dfe5fcf81f361f043wrowe    STANDARD20_MODULE_STUFF,
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    NULL,                       /* create per-directory config structure */
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    NULL,                       /* merge per-directory config structures */
3d96ee83babeec32482c9082c9426340cee8c44dwrowe    NULL,                       /* create per-server config structure */
91f0d8da77152d24e4bbb31ce199282b3fd6e3b2coar    NULL,                       /* merge per-server config structures */
2864362ca8266097928e84f101010bdf814ffa08stoddard    NULL,                       /* command apr_table_t */
db08da9ddcd65c31f9ea44b823898b72a1b24fbestoddard    register_hooks              /* register hooks */
db08da9ddcd65c31f9ea44b823898b72a1b24fbestoddard};
bf648cbfa4a723c9c02fe8444103cd41ed8642d0wrowe