proxy_ftp_objs="mod_proxy_ftp.lo"
proxy_http_objs="mod_proxy_http.lo"
proxy_fcgi_objs="mod_proxy_fcgi.lo"
+proxy_fdpass_objs="mod_proxy_fdpass.lo"
proxy_ajp_objs="mod_proxy_ajp.lo ajp_header.lo ajp_link.lo ajp_msg.lo ajp_utils.lo"
proxy_balancer_objs="mod_proxy_balancer.lo"
proxy_ftp_objs="$proxy_ftp_objs mod_proxy.la"
proxy_http_objs="$proxy_http_objs mod_proxy.la"
proxy_fcgi_objs="$proxy_fcgi_objs mod_proxy.la"
+ proxy_fdpass_objs="$proxy_fdpass_objs mod_proxy.la"
proxy_ajp_objs="$proxy_ajp_objs mod_proxy.la"
proxy_balancer_objs="$proxy_balancer_objs mod_proxy.la"
;;
APACHE_MODULE(proxy_ftp, Apache proxy FTP module, $proxy_ftp_objs, , $proxy_mods_enable)
APACHE_MODULE(proxy_http, Apache proxy HTTP module, $proxy_http_objs, , $proxy_mods_enable)
APACHE_MODULE(proxy_fcgi, Apache proxy FastCGI module, $proxy_fcgi_objs, , $proxy_mods_enable)
+APACHE_MODULE(proxy_fdpass, Apache proxy to Unix Daemon Socket module, $proxy_fdpass_objs, , $proxy_mods_enable)
APACHE_MODULE(proxy_ajp, Apache proxy AJP module, $proxy_ajp_objs, , $proxy_mods_enable)
APACHE_MODULE(proxy_balancer, Apache proxy BALANCER module, $proxy_balancer_objs, , $proxy_mods_enable)
--- /dev/null
+/* 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.
+ */
+
+#include "mod_proxy.h"
+
+#ifndef CMSG_DATA
+#error This module only works on unix platforms with the correct OS support
+#endif
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+/* for apr_wait_for_io_or_timeout */
+#include "apr_support.h"
+
+module AP_MODULE_DECLARE_DATA proxy_fdpass_module;
+
+static int proxy_fdpass_canon(request_rec *r, char *url)
+{
+ const char *path;
+
+ if (strncasecmp(url, "fd://", 5) == 0) {
+ url += 5;
+ }
+ else {
+ return DECLINED;
+ }
+
+ path = ap_server_root_relative(r->pool, url);
+
+ r->filename = apr_pstrcat(r->pool, "proxy:fd://", path, NULL);
+
+ ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
+ "proxy: FD: set r->filename to %s", r->filename);
+ return OK;
+}
+
+/* TODO: In APR 2.x: Extend apr_sockaddr_t to possibly be a path !!! */
+static apr_status_t socket_connect_un(apr_socket_t *sock,
+ struct sockaddr_un *sa)
+{
+ apr_status_t rv;
+ apr_os_sock_t rawsock;
+ apr_interval_time_t t;
+
+ rv = apr_os_sock_get(&rawsock, sock);
+ if (rv) {
+ return rv;
+ }
+
+ rv = apr_socket_timeout_get(sock, &t);
+ if (rv) {
+ return rv;
+ }
+
+ do {
+ rv = connect(rawsock, (struct sockaddr*)sa, sizeof(*sa) + strlen(sa->sun_path));
+ } while (rv == -1 && errno == EINTR);
+
+ if ((rv == -1) && (errno == EINPROGRESS || errno == EALREADY)
+ && (t > 0)) {
+ rv = apr_wait_for_io_or_timeout(NULL, sock, 0);
+ if (rv != APR_SUCCESS) {
+ return rv;
+ }
+ }
+
+ if (rv == -1 && errno != EISCONN) {
+ return errno;
+ }
+
+ return APR_SUCCESS;
+}
+
+static apr_status_t get_socket_from_path(apr_pool_t *p,
+ const char* path,
+ apr_socket_t **out_sock)
+{
+ struct sockaddr_un sa;
+ apr_socket_t *s;
+ apr_status_t rv;
+ *out_sock = NULL;
+
+ rv = apr_socket_create(&s, AF_UNIX, SOCK_STREAM, 0, p);
+
+ if (rv) {
+ return rv;
+ }
+
+ sa.sun_family = AF_UNIX;
+ strncpy(sa.sun_path, path, sizeof(sa.sun_path));
+
+ rv = socket_connect_un(s, &sa);
+ if (rv) {
+ return rv;
+ }
+
+ *out_sock = s;
+
+ return APR_SUCCESS;
+}
+
+
+static apr_status_t send_socket(apr_pool_t *p,
+ apr_socket_t *s,
+ apr_socket_t *outbound)
+{
+ apr_status_t rv;
+ apr_os_sock_t rawsock;
+ apr_os_sock_t srawsock;
+ struct msghdr msg;
+ struct cmsghdr *cmsg;
+ struct iovec iov;
+ char b = '\0';
+
+ rv = apr_os_sock_get(&rawsock, outbound);
+ if (rv) {
+ return rv;
+ }
+
+ rv = apr_os_sock_get(&srawsock, s);
+ if (rv) {
+ return rv;
+ }
+
+ memset(&msg, 0, sizeof(msg));
+
+ msg.msg_iov = &iov;
+ msg.msg_iovlen = 1;
+
+ iov.iov_base = &b;
+ iov.iov_len = 1;
+
+ cmsg = apr_palloc(p, sizeof(*cmsg) + sizeof(rawsock));
+ cmsg->cmsg_len = sizeof(*cmsg) + sizeof(rawsock);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_RIGHTS;
+
+ memcpy(CMSG_DATA(cmsg), &rawsock, sizeof(rawsock));
+
+ msg.msg_control = cmsg;
+ msg.msg_controllen = cmsg->cmsg_len;
+
+ rv = sendmsg(srawsock, &msg, 0);
+
+ if (rv == -1) {
+ return errno;
+ }
+
+
+ return APR_SUCCESS;
+}
+
+static int proxy_fdpass_handler(request_rec *r, proxy_worker *worker,
+ proxy_server_conf *conf,
+ char *url, const char *proxyname,
+ apr_port_t proxyport)
+{
+ apr_status_t rv;
+ apr_socket_t *sock;
+ apr_socket_t *clientsock;
+
+ if (strncasecmp(url, "fd://", 5) == 0) {
+ url += 5;
+ }
+ else {
+ return DECLINED;
+ }
+
+ rv = get_socket_from_path(r->pool, url, &sock);
+
+ if (rv) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
+ "proxy: FD: Failed to connect to '%s'",
+ url);
+ return HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ r->connection->keepalive = AP_CONN_CLOSE;
+
+ /* TODO: Make this part a provider, so you can send a custom body / headers,
+ * before passing the client off to the socket.
+ */
+ {
+ int status;
+ apr_bucket_brigade *bb;
+ apr_bucket *e;
+
+ bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);
+ e = apr_bucket_flush_create(r->connection->bucket_alloc);
+
+ APR_BRIGADE_INSERT_TAIL(bb, e);
+
+ status = ap_pass_brigade(r->output_filters, bb);
+
+ if (status != OK) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r,
+ "proxy: FD: ap_pass_brigade failed:");
+ return status;
+ }
+ }
+
+ /* XXXXX: THIS IS AN EVIL HACK */
+ /* There should really be a (documented) public API for this ! */
+ clientsock = ap_get_module_config(r->connection->conn_config, &core_module);
+
+ rv = send_socket(r->pool, sock, clientsock);
+ if (rv) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
+ "proxy: FD: send_socket failed:");
+ return HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ {
+ apr_socket_t *dummy;
+ /* Create a dummy unconnected socket, and set it as the one we were
+ * connected to, so that when the core closes it, it doesn't close
+ * the tcp connection to the client.
+ */
+ rv = apr_socket_create(&dummy, APR_INET, SOCK_STREAM, APR_PROTO_TCP, r->connection->pool);
+ if (rv) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
+ "proxy: FD: failed to create dummy socket");
+ return HTTP_INTERNAL_SERVER_ERROR;
+ }
+ ap_set_module_config(r->connection->conn_config, &core_module, dummy);
+ }
+
+
+ return OK;
+}
+
+static void register_hooks(apr_pool_t *p)
+{
+ proxy_hook_scheme_handler(proxy_fdpass_handler, NULL, NULL, APR_HOOK_FIRST);
+ proxy_hook_canon_handler(proxy_fdpass_canon, NULL, NULL, APR_HOOK_FIRST);
+}
+
+module AP_MODULE_DECLARE_DATA proxy_fdpass_module = {
+ STANDARD20_MODULE_STUFF,
+ NULL, /* create per-directory config structure */
+ NULL, /* merge per-directory config structures */
+ NULL, /* create per-server config structure */
+ NULL, /* merge per-server config structures */
+ NULL, /* command apr_table_t */
+ register_hooks /* register hooks */
+};
projects / apache / commitdiff