diff options
Diffstat (limited to 'server/connection.c')
| -rw-r--r-- | server/connection.c | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/server/connection.c b/server/connection.c deleted file mode 100644 index 297d4eef8e..0000000000 --- a/server/connection.c +++ /dev/null @@ -1,263 +0,0 @@ -/* ==================================================================== - * The Apache Software License, Version 1.1 - * - * Copyright (c) 2000-2001 The Apache Software Foundation. All rights - * reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The end-user documentation included with the redistribution, - * if any, must include the following acknowledgment: - * "This product includes software developed by the - * Apache Software Foundation (http://www.apache.org/)." - * Alternately, this acknowledgment may appear in the software itself, - * if and wherever such third-party acknowledgments normally appear. - * - * 4. The names "Apache" and "Apache Software Foundation" must - * not be used to endorse or promote products derived from this - * software without prior written permission. For written - * permission, please contact apache@apache.org. - * - * 5. Products derived from this software may not be called "Apache", - * nor may "Apache" appear in their name, without prior written - * permission of the Apache Software Foundation. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * ==================================================================== - * - * This software consists of voluntary contributions made by many - * individuals on behalf of the Apache Software Foundation. For more - * information on the Apache Software Foundation, please see - * <http://www.apache.org/>. - * - * Portions of this software are based upon public domain software - * originally written at the National Center for Supercomputing Applications, - * University of Illinois, Urbana-Champaign. - */ - -#include "apr.h" -#include "apr_strings.h" - -#define CORE_PRIVATE -#include "ap_config.h" -#include "httpd.h" -#include "http_connection.h" -#include "http_request.h" -#include "http_protocol.h" -#include "ap_mpm.h" -#include "mpm_default.h" -#include "http_config.h" -#include "http_vhost.h" -#include "scoreboard.h" -#include "http_log.h" -#include "util_filter.h" - -APR_HOOK_STRUCT( - APR_HOOK_LINK(pre_connection) - APR_HOOK_LINK(process_connection) -) - -AP_IMPLEMENT_HOOK_RUN_ALL(int,pre_connection,(conn_rec *c),(c),OK,DECLINED) -AP_IMPLEMENT_HOOK_RUN_FIRST(int,process_connection,(conn_rec *c),(c),DECLINED) - -/* - * More machine-dependent networking gooo... on some systems, - * you've got to be *really* sure that all the packets are acknowledged - * before closing the connection, since the client will not be able - * to see the last response if their TCP buffer is flushed by a RST - * packet from us, which is what the server's TCP stack will send - * if it receives any request data after closing the connection. - * - * In an ideal world, this function would be accomplished by simply - * setting the socket option SO_LINGER and handling it within the - * server's TCP stack while the process continues on to the next request. - * Unfortunately, it seems that most (if not all) operating systems - * block the server process on close() when SO_LINGER is used. - * For those that don't, see USE_SO_LINGER below. For the rest, - * we have created a home-brew lingering_close. - * - * Many operating systems tend to block, puke, or otherwise mishandle - * calls to shutdown only half of the connection. You should define - * NO_LINGCLOSE in ap_config.h if such is the case for your system. - */ -#ifndef MAX_SECS_TO_LINGER -#define MAX_SECS_TO_LINGER 30 -#endif - -#ifdef USE_SO_LINGER -#define NO_LINGCLOSE /* The two lingering options are exclusive */ - -static void sock_enable_linger(int s) -{ - struct linger li; - - li.l_onoff = 1; - li.l_linger = MAX_SECS_TO_LINGER; - - if (setsockopt(s, SOL_SOCKET, SO_LINGER, - (char *) &li, sizeof(struct linger)) < 0) { - ap_log_error(APLOG_MARK, APLOG_WARNING, errno, server_conf, - "setsockopt: (SO_LINGER)"); - /* not a fatal error */ - } -} - -#else -#define sock_enable_linger(s) /* NOOP */ -#endif /* USE_SO_LINGER */ - -AP_CORE_DECLARE(void) ap_flush_conn(conn_rec *c) -{ - apr_bucket_brigade *bb; - apr_bucket *b; - - bb = apr_brigade_create(c->pool); - b = apr_bucket_flush_create(); - APR_BRIGADE_INSERT_TAIL(bb, b); - ap_pass_brigade(c->output_filters, bb); -} - -/* we now proceed to read from the client until we get EOF, or until - * MAX_SECS_TO_LINGER has passed. the reasons for doing this are - * documented in a draft: - * - * http://www.ics.uci.edu/pub/ietf/http/draft-ietf-http-connection-00.txt - * - * in a nutshell -- if we don't make this effort we risk causing - * TCP RST packets to be sent which can tear down a connection before - * all the response data has been sent to the client. - */ -#define SECONDS_TO_LINGER 2 -void ap_lingering_close(conn_rec *c) -{ - char dummybuf[512]; - apr_size_t nbytes = sizeof(dummybuf); - apr_status_t rc; - apr_int32_t timeout; - apr_int32_t total_linger_time = 0; - -#ifdef NO_LINGCLOSE - ap_flush_conn(c); /* just close it */ - apr_socket_close(c->client_socket); - return; -#endif - - /* Close the connection, being careful to send out whatever is still - * in our buffers. If possible, try to avoid a hard close until the - * client has ACKed our FIN and/or has stopped sending us data. - */ - - /* Send any leftover data to the client, but never try to again */ - ap_flush_conn(c); - - if (c->aborted) { - apr_socket_close(c->client_socket); - return; - } - - /* Shut down the socket for write, which will send a FIN - * to the peer. - */ - - if (apr_shutdown(c->client_socket, APR_SHUTDOWN_WRITE) != APR_SUCCESS || - c->aborted) { - apr_socket_close(c->client_socket); - return; - } - - /* Read all data from the peer until we reach "end-of-file" (FIN - * from peer) or we've exceeded our overall timeout. If the client does - * not send us bytes within 2 seconds (a value pulled from Apache 1.3 - * which seems to work well), close the connection. - */ - timeout = SECONDS_TO_LINGER * APR_USEC_PER_SEC; - apr_setsocketopt(c->client_socket, APR_SO_TIMEOUT, timeout); - for (;;) { - nbytes = sizeof(dummybuf); - rc = apr_recv(c->client_socket, dummybuf, &nbytes); - if (rc != APR_SUCCESS || nbytes == 0) break; - - total_linger_time += SECONDS_TO_LINGER; - if (total_linger_time >= MAX_SECS_TO_LINGER) { - break; - } - } - - apr_socket_close(c->client_socket); -} - -AP_CORE_DECLARE(void) ap_process_connection(conn_rec *c) -{ - ap_update_vhost_given_ip(c); - - ap_run_pre_connection(c); - - ap_run_process_connection(c); - -} - -/* Clearly some of this stuff doesn't belong in a generalised connection - structure, but for now... -*/ - -conn_rec *ap_new_connection(apr_pool_t *p, server_rec *server, - apr_socket_t *inout, long id) -{ - conn_rec *conn = (conn_rec *) apr_pcalloc(p, sizeof(conn_rec)); - apr_status_t rv; - - (void) ap_update_child_status(AP_CHILD_THREAD_FROM_ID(id), - SERVER_BUSY_READ, (request_rec *) NULL); - - /* Got a connection structure, so initialize what fields we can - * (the rest are zeroed out by pcalloc). - */ - - conn->conn_config=ap_create_conn_config(p); - conn->notes = apr_table_make(p, 5); - - conn->pool = p; - if ((rv = apr_socket_addr_get(&conn->local_addr, APR_LOCAL, inout)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_INFO, rv, server, - "apr_socket_addr_get(APR_LOCAL)"); - apr_socket_close(inout); - return NULL; - } - apr_sockaddr_ip_get(&conn->local_ip, conn->local_addr); - if ((rv = apr_socket_addr_get(&conn->remote_addr, APR_REMOTE, inout)) - != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_INFO, rv, server, - "apr_socket_addr_get(APR_REMOTE)"); - apr_socket_close(inout); - return NULL; - } - apr_sockaddr_ip_get(&conn->remote_ip, conn->remote_addr); - conn->base_server = server; - conn->client_socket = inout; - - conn->id = id; - - return conn; -} |