1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31#include "base/socket.hh"
32
33#include <netinet/in.h>
34#include <netinet/tcp.h>
35#include <sys/socket.h>
36#include <sys/types.h>
37#include <unistd.h>
38
39#include <cerrno>
40
41#include "base/misc.hh"
42#include "base/types.hh"
43#include "sim/byteswap.hh"
44
45using namespace std;
46
47bool ListenSocket::listeningDisabled = false;
48bool ListenSocket::anyListening = false;
49
50bool ListenSocket::bindToLoopback = false;
51
52void
53ListenSocket::disableAll()
54{
55 if (anyListening)
56 panic("Too late to disable all listeners, already have a listener");
57 listeningDisabled = true;
58}
59
60bool
61ListenSocket::allDisabled()
62{
63 return listeningDisabled;
64}
65
66void
67ListenSocket::loopbackOnly()
68{
69 if (anyListening)
70 panic("Too late to bind to loopback, already have a listener");
71 bindToLoopback = true;
72}
73
74////////////////////////////////////////////////////////////////////////
75//
76//
77
78ListenSocket::ListenSocket()
79 : listening(false), fd(-1)
80{}
81
82ListenSocket::~ListenSocket()
83{
84 if (fd != -1)
85 close(fd);
86}
87
88// Create a socket and configure it for listening
89bool
90ListenSocket::listen(int port, bool reuse)
91{
92 if (listening)
93 panic("Socket already listening!");
94
95 fd = ::socket(PF_INET, SOCK_STREAM, 0);
96 if (fd < 0)
97 panic("Can't create socket:%s !", strerror(errno));
98
99 if (reuse) {
100 int i = 1;
101 if (::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&i,
102 sizeof(i)) < 0)
103 panic("ListenSocket(listen): setsockopt() SO_REUSEADDR failed!");
104 }
105
106 struct sockaddr_in sockaddr;
107 sockaddr.sin_family = PF_INET;
108 sockaddr.sin_addr.s_addr =
| 1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31#include "base/socket.hh"
32
33#include <netinet/in.h>
34#include <netinet/tcp.h>
35#include <sys/socket.h>
36#include <sys/types.h>
37#include <unistd.h>
38
39#include <cerrno>
40
41#include "base/misc.hh"
42#include "base/types.hh"
43#include "sim/byteswap.hh"
44
45using namespace std;
46
47bool ListenSocket::listeningDisabled = false;
48bool ListenSocket::anyListening = false;
49
50bool ListenSocket::bindToLoopback = false;
51
52void
53ListenSocket::disableAll()
54{
55 if (anyListening)
56 panic("Too late to disable all listeners, already have a listener");
57 listeningDisabled = true;
58}
59
60bool
61ListenSocket::allDisabled()
62{
63 return listeningDisabled;
64}
65
66void
67ListenSocket::loopbackOnly()
68{
69 if (anyListening)
70 panic("Too late to bind to loopback, already have a listener");
71 bindToLoopback = true;
72}
73
74////////////////////////////////////////////////////////////////////////
75//
76//
77
78ListenSocket::ListenSocket()
79 : listening(false), fd(-1)
80{}
81
82ListenSocket::~ListenSocket()
83{
84 if (fd != -1)
85 close(fd);
86}
87
88// Create a socket and configure it for listening
89bool
90ListenSocket::listen(int port, bool reuse)
91{
92 if (listening)
93 panic("Socket already listening!");
94
95 fd = ::socket(PF_INET, SOCK_STREAM, 0);
96 if (fd < 0)
97 panic("Can't create socket:%s !", strerror(errno));
98
99 if (reuse) {
100 int i = 1;
101 if (::setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&i,
102 sizeof(i)) < 0)
103 panic("ListenSocket(listen): setsockopt() SO_REUSEADDR failed!");
104 }
105
106 struct sockaddr_in sockaddr;
107 sockaddr.sin_family = PF_INET;
108 sockaddr.sin_addr.s_addr =
|
110 sockaddr.sin_port = htons(port);
111 // finally clear sin_zero
112 memset(&sockaddr.sin_zero, 0, sizeof(sockaddr.sin_zero));
113 int ret = ::bind(fd, (struct sockaddr *)&sockaddr, sizeof (sockaddr));
114 if (ret != 0) {
115 if (ret == -1 && errno != EADDRINUSE)
116 panic("ListenSocket(listen): bind() failed!");
117 return false;
118 }
119
120 if (::listen(fd, 1) == -1) {
121 if (errno != EADDRINUSE)
122 panic("ListenSocket(listen): listen() failed!");
123
124 return false;
125 }
126
127 listening = true;
128 anyListening = true;
129 return true;
130}
131
132
133// Open a connection. Accept will block, so if you don't want it to,
134// make sure a connection is ready before you call accept.
135int
136ListenSocket::accept(bool nodelay)
137{
138 struct sockaddr_in sockaddr;
139 socklen_t slen = sizeof (sockaddr);
140 int sfd = ::accept(fd, (struct sockaddr *)&sockaddr, &slen);
141 if (sfd != -1 && nodelay) {
142 int i = 1;
143 if (::setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, (char *)&i,
144 sizeof(i)) < 0)
145 warn("ListenSocket(accept): setsockopt() TCP_NODELAY failed!");
146 }
147
148 return sfd;
149}
| 110 sockaddr.sin_port = htons(port);
111 // finally clear sin_zero
112 memset(&sockaddr.sin_zero, 0, sizeof(sockaddr.sin_zero));
113 int ret = ::bind(fd, (struct sockaddr *)&sockaddr, sizeof (sockaddr));
114 if (ret != 0) {
115 if (ret == -1 && errno != EADDRINUSE)
116 panic("ListenSocket(listen): bind() failed!");
117 return false;
118 }
119
120 if (::listen(fd, 1) == -1) {
121 if (errno != EADDRINUSE)
122 panic("ListenSocket(listen): listen() failed!");
123
124 return false;
125 }
126
127 listening = true;
128 anyListening = true;
129 return true;
130}
131
132
133// Open a connection. Accept will block, so if you don't want it to,
134// make sure a connection is ready before you call accept.
135int
136ListenSocket::accept(bool nodelay)
137{
138 struct sockaddr_in sockaddr;
139 socklen_t slen = sizeof (sockaddr);
140 int sfd = ::accept(fd, (struct sockaddr *)&sockaddr, &slen);
141 if (sfd != -1 && nodelay) {
142 int i = 1;
143 if (::setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, (char *)&i,
144 sizeof(i)) < 0)
145 warn("ListenSocket(accept): setsockopt() TCP_NODELAY failed!");
146 }
147
148 return sfd;
149}
|