1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/* 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.
*/
#ifndef AP_LISTEN_H
#define AP_LISTEN_H
#include "apr_network_io.h"
#include "httpd.h"
#include "http_config.h"
/**
* @package Apache Listeners Library
*/
typedef struct ap_listen_rec ap_listen_rec;
typedef apr_status_t (*accept_function)(void **csd, ap_listen_rec *lr, apr_pool_t *ptrans);
/**
* Apache's listeners record. These are used in the Multi-Processing Modules
* to setup all of the sockets for the MPM to listen to and accept on.
*/
struct ap_listen_rec {
/**
* The next listener in the list
*/
ap_listen_rec *next;
/**
* The actual socket
*/
apr_socket_t *sd;
/**
* The sockaddr the socket should bind to
*/
apr_sockaddr_t *bind_addr;
/**
* The accept function for this socket
*/
accept_function accept_func;
/**
* Is this socket currently active
*/
int active;
/* more stuff here, like which protocol is bound to the port */
};
/**
* The global list of ap_listen_rec structures
*/
AP_DECLARE_DATA extern ap_listen_rec *ap_listeners;
/**
* Setup all of the defaults for the listener list
*/
void ap_listen_pre_config(void);
#if !defined(SPMT_OS2_MPM)
/**
* Loop through the global ap_listen_rec list and create all of the required
* sockets. This executes the listen and bind on the sockets.
* @param s The global server_rec
* @return The number of open sockets.
* @warning This function is not available to Windows platforms, or the
* Prefork or SPMT_OS2 MPMs.
*/
int ap_setup_listeners(server_rec *s);
#endif
/* Split into two #if's to make the exports scripts easier.
*/
#if defined(SPMT_OS2_MPM)
/**
* Create and open a socket on the specified port. This includes listening
* and binding the socket.
* @param process The process record for the currently running server
* @param port The port to open a socket on.
* @return The number of open sockets
* @warning This function is only available to Windows platforms, or the
* Prefork or SPMT_OS2 MPMs.
*/
int ap_listen_open(process_rec *process, apr_port_t port);
#endif
/* Although these functions are exported from libmain, they are not really
* public functions. These functions are actually called while parsing the
* config file, when one of the LISTEN_COMMANDS directives is read. These
* should not ever be called by external modules. ALL MPMs should include
* LISTEN_COMMANDS in their command_rec table so that these functions are
* called.
*/
const char *ap_set_listenbacklog(cmd_parms *cmd, void *dummy, const char *arg);
const char *ap_set_listener(cmd_parms *cmd, void *dummy, const char *ips);
const char *ap_set_send_buffer_size(cmd_parms *cmd, void *dummy,
const char *arg);
AP_DECLARE_NONSTD(const char *) ap_set_receive_buffer_size(cmd_parms *cmd,
void *dummy,
const char *arg);
#define LISTEN_COMMANDS \
AP_INIT_TAKE1("ListenBacklog", ap_set_listenbacklog, NULL, RSRC_CONF, \
"Maximum length of the queue of pending connections, as used by listen(2)"), \
AP_INIT_TAKE1("Listen", ap_set_listener, NULL, RSRC_CONF, \
"A port number or a numeric IP address and a port number"), \
AP_INIT_TAKE1("SendBufferSize", ap_set_send_buffer_size, NULL, RSRC_CONF, \
"Send buffer size in bytes"), \
AP_INIT_TAKE1("ReceiveBufferSize", ap_set_receive_buffer_size, NULL, \
RSRC_CONF, "Receive buffer size in bytes")
#endif
|
