1 /* Copyright (C) 2009, Martin Johansson <martin@fatbob.nu>
2 Copyright (C) 2005-2009, Thorvald Natvig <thorvald@natvig.com>
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions
10 - Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
12 - Redistributions in binary form must reproduce the above copyright notice,
13 this list of conditions and the following disclaimer in the documentation
14 and/or other materials provided with the distribution.
15 - Neither the name of the Developers nor the names of its contributors may
16 be used to endorse or promote products derived from this software without
17 specific prior written permission.
19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
23 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
26 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
27 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
28 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
29 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <netinet/tcp.h>
35 #include <sys/socket.h>
52 int udpsock; /* XXX restructure! */
53 bool_t shutdown_server;
57 int timeout = 1000, rc;
58 struct pollfd *pollfds;
59 int tcpsock, sockopt = 1;
60 struct sockaddr_in sin;
62 etimer_t janitorTimer;
64 /* max clients + listen sock + udp sock + client connecting that will be disconnected */
65 pollfds = malloc((getIntConf(MAX_CLIENTS) + 3) * sizeof(struct pollfd));
67 Log_fatal("out of memory");
69 /* Prepare TCP socket */
70 memset(&sin, 0, sizeof(sin));
71 tcpsock = socket(PF_INET, SOCK_STREAM, 0);
74 if (setsockopt(tcpsock, SOL_SOCKET, SO_REUSEADDR, &sockopt, sizeof(int)) != 0)
75 Log_fatal("setsockopt: %s", strerror(errno));
76 sin.sin_family = AF_INET;
77 sin.sin_port = htons(getIntConf(BINDPORT));
78 sin.sin_addr.s_addr = inet_addr(getStrConf(BINDADDR)) == -1 ? inet_addr("0.0.0.0") : inet_addr(getStrConf(BINDADDR));
79 rc = bind(tcpsock, (struct sockaddr *) &sin, sizeof (struct sockaddr_in));
80 if (rc < 0) Log_fatal("bind: %s", strerror(errno));
81 rc = listen(tcpsock, 3);
82 if (rc < 0) Log_fatal("listen");
83 fcntl(tcpsock, F_SETFL, O_NONBLOCK);
85 pollfds[LISTEN_SOCK].fd = tcpsock;
86 pollfds[LISTEN_SOCK].events = POLLIN;
88 /* Prepare UDP socket */
89 memset(&sin, 0, sizeof(sin));
90 udpsock = socket(PF_INET, SOCK_DGRAM, 0);
91 sin.sin_family = AF_INET;
92 sin.sin_port = htons(getIntConf(BINDPORT));
93 sin.sin_addr.s_addr = inet_addr(getStrConf(BINDADDR)) == -1 ? inet_addr("0.0.0.0") : inet_addr(getStrConf(BINDADDR));
94 rc = bind(udpsock, (struct sockaddr *) &sin, sizeof (struct sockaddr_in));
96 Log_fatal("bind %d %s: %s", getIntConf(BINDPORT), getStrConf(BINDADDR), strerror(errno));
98 rc = setsockopt(udpsock, IPPROTO_IP, IP_TOS, &val, sizeof(val));
100 Log_fatal("Server: Failed to set TOS for UDP Socket");
102 rc = setsockopt(udpsock, IPPROTO_IP, IP_TOS, &val, sizeof(val));
104 Log_fatal("Server: Failed to set TOS for UDP Socket");
106 fcntl(udpsock, F_SETFL, O_NONBLOCK);
107 pollfds[UDP_SOCK].fd = udpsock;
108 pollfds[UDP_SOCK].events = POLLIN | POLLHUP | POLLERR;
110 Timer_init(&janitorTimer);
112 Log_info("uMurmur voicechat server started -- http://code.google.com/p/umurmur/");
114 /* Main server loop */
115 while (!shutdown_server) {
116 struct sockaddr_in remote;
119 pollfds[UDP_SOCK].revents = 0;
120 pollfds[TCP_SOCK].revents = 0;
121 clientcount = Client_getfds(&pollfds[2]);
123 timeout = (int)(1000000LL - (int64_t)Timer_elapsed(&janitorTimer)) / 1000LL;
126 Timer_restart(&janitorTimer);
127 timeout = (int)(1000000LL - (int64_t)Timer_elapsed(&janitorTimer)) / 1000LL;
129 rc = poll(pollfds, clientcount + 2, timeout);
130 if (rc == 0) { /* Timeout */
132 Timer_restart(&janitorTimer);
137 if (errno == EINTR) /* signal */
140 Log_fatal("poll: error %d", errno);
142 if (pollfds[LISTEN_SOCK].revents) { /* New tcp connection */
145 addrlen = sizeof(struct sockaddr_in);
146 tcpfd = accept(pollfds[LISTEN_SOCK].fd, (struct sockaddr*)&remote, &addrlen);
147 fcntl(tcpfd, F_SETFL, O_NONBLOCK);
148 setsockopt(tcpfd, IPPROTO_TCP, TCP_NODELAY, (char *) &flag, sizeof(int));
149 Log_info("Connection from %s port %d\n", inet_ntoa(remote.sin_addr),
150 ntohs(remote.sin_port));
151 Client_add(tcpfd, &remote);
154 if (pollfds[UDP_SOCK].revents) {
157 for (i = 0; i < clientcount; i++) {
158 if (pollfds[i + 2].revents & POLLIN) {
159 Client_read_fd(pollfds[i + 2].fd);
161 if (pollfds[i + 2].revents & POLLOUT) {
162 Client_write_fd(pollfds[i + 2].fd);
167 /* Disconnect clients */
168 Client_disconnect_all();
172 void Server_shutdown()
174 shutdown_server = true;