1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
18 #include "socketengine.h"
19 using irc::sockets::sockaddrs;
21 /** This will bind a socket to a port. It works for UDP/TCP.
22 * It can only bind to IP addresses, if you wish to bind to hostnames
23 * you should first resolve them using class 'Resolver'.
25 bool InspIRCd::BindSocket(int sockfd, int port, const char* addr, bool dolisten)
30 if (*addr == '*' || *addr == '\0')
33 if (port == -1 && !addr)
35 /* Port -1: Means UDP IPV4 port binding - Special case
38 memset(&servaddr, 0, sizeof(servaddr));
39 servaddr.in4.sin_family = AF_INET;
41 else if (!irc::sockets::aptosa(addr, port, &servaddr))
44 ret = SE->Bind(sockfd, &servaddr.sa, sa_size(servaddr));
54 if (SE->Listen(sockfd, Config->MaxConn) == -1)
56 this->Logs->Log("SOCKET",DEFAULT,"ERROR in listen(): %s",strerror(errno));
61 this->Logs->Log("SOCKET",DEBUG,"New socket binding for %d with listen: %s:%d", sockfd, addr, port);
62 SE->NonBlocking(sockfd);
68 this->Logs->Log("SOCKET",DEBUG,"New socket binding for %d without listen: %s:%d", sockfd, addr, port);
75 int irc::sockets::OpenTCPSocket(const char* addr, int socktype)
80 struct linger linger = { 0, 0 };
84 sockfd = socket (PF_INET6, socktype, 0);
87 sockfd = socket (PF_INET, socktype, 0);
89 else if (strchr(addr,':'))
90 sockfd = socket (PF_INET6, socktype, 0);
92 sockfd = socket (PF_INET, socktype, 0);
100 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
101 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
104 setsockopt(sockfd, SOL_SOCKET, SO_LINGER, &linger, sizeof(linger));
109 // XXX: it would be VERY nice to genericize this so all listen stuff (server/client) could use the one function. -- w00t
110 int InspIRCd::BindPorts(FailedPortList &failed_ports)
112 char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF], Desc[MAXBUF];
114 std::vector<ListenSocketBase*> old_ports(ports.begin(), ports.end());
116 for (int count = 0; count < Config->ConfValueEnum("bind"); count++)
118 Config->ConfValue("bind", "port", count, configToken, MAXBUF);
119 Config->ConfValue("bind", "address", count, Addr, MAXBUF);
120 Config->ConfValue("bind", "type", count, Type, MAXBUF);
121 Config->ConfValue("bind", "ssl", count, Desc, MAXBUF);
123 if (strncmp(Addr, "::ffff:", 7) == 0)
124 this->Logs->Log("SOCKET",DEFAULT, "Using 4in6 (::ffff:) isn't recommended. You should bind IPv4 addresses directly instead.");
126 if ((!*Type) || (!strcmp(Type,"clients")))
128 irc::portparser portrange(configToken, false);
130 while (0 != (portno = portrange.GetToken()))
135 irc::sockets::sockaddrs bindspec;
136 irc::sockets::aptosa(Addr, portno, &bindspec);
137 std::string bind_readable = irc::sockets::satouser(&bindspec);
140 for (std::vector<ListenSocketBase *>::iterator n = old_ports.begin(); n != old_ports.end(); ++n)
142 if ((*n)->GetBindDesc() == bind_readable)
151 ClientListenSocket *ll = new ClientListenSocket(this, portno, Addr);
152 if (ll->GetFd() > -1)
155 ll->SetDescription(*Desc ? Desc : "plaintext");
160 failed_ports.push_back(std::make_pair(bind_readable, strerror(errno)));
167 std::vector<ListenSocketBase *>::iterator n = ports.begin();
168 for (std::vector<ListenSocketBase *>::iterator o = old_ports.begin(); o != old_ports.end(); ++o)
170 while (n != ports.end() && *n != *o)
172 if (n == ports.end())
174 this->Logs->Log("SOCKET",ERROR,"Port bindings slipped out of vector, aborting close!");
178 this->Logs->Log("SOCKET",DEFAULT, "Port binding %s was removed from the config file, closing.",
179 (*n)->GetBindDesc().c_str());
182 // this keeps the iterator valid, pointing to the next element
189 bool irc::sockets::aptosa(const char* addr, int port, irc::sockets::sockaddrs* sa)
191 memset(sa, 0, sizeof(*sa));
195 sa->in6.sin6_family = AF_INET6;
196 sa->in6.sin6_port = htons(port);
198 sa->in4.sin_family = AF_INET;
199 sa->in4.sin_port = htons(port);
203 else if (inet_pton(AF_INET, addr, &sa->in4.sin_addr) > 0)
205 sa->in4.sin_family = AF_INET;
206 sa->in4.sin_port = htons(port);
209 else if (inet_pton(AF_INET6, addr, &sa->in6.sin6_addr) > 0)
211 sa->in6.sin6_family = AF_INET6;
212 sa->in6.sin6_port = htons(port);
218 bool irc::sockets::satoap(const irc::sockets::sockaddrs* sa, std::string& addr, int &port) {
219 char addrv[INET6_ADDRSTRLEN+1];
220 if (sa->sa.sa_family == AF_INET)
222 if (!inet_ntop(AF_INET, &sa->in4.sin_addr, addrv, sizeof(addrv)))
225 port = ntohs(sa->in4.sin_port);
228 else if (sa->sa.sa_family == AF_INET6)
230 if (!inet_ntop(AF_INET6, &sa->in6.sin6_addr, addrv, sizeof(addrv)))
233 port = ntohs(sa->in6.sin6_port);
239 static const char all_zero[16] = {0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
241 std::string irc::sockets::satouser(const irc::sockets::sockaddrs* sa) {
243 if (sa->sa.sa_family == AF_INET)
245 if (sa->in4.sin_addr.s_addr == 0)
247 sprintf(buffer, "*:%u", ntohs(sa->in4.sin_port));
251 const uint8_t* bits = reinterpret_cast<const uint8_t*>(&sa->in4.sin_addr);
252 sprintf(buffer, "%d.%d.%d.%d:%u", bits[0], bits[1], bits[2], bits[3], ntohs(sa->in4.sin_port));
255 else if (sa->sa.sa_family == AF_INET6)
257 if (!memcmp(all_zero, &sa->in6.sin6_addr, 16))
259 sprintf(buffer, "*:%u", ntohs(sa->in6.sin6_port));
264 if (!inet_ntop(AF_INET6, &sa->in6.sin6_addr, buffer+1, MAXBUF - 10))
265 return "<unknown>"; // should never happen, buffer is large enough
266 int len = strlen(buffer);
267 // no need for snprintf, buffer has at least 9 chars left, max short len = 5
268 sprintf(buffer + len, "]:%u", ntohs(sa->in6.sin6_port));
273 return std::string(buffer);
276 int irc::sockets::sa_size(irc::sockets::sockaddrs& sa)
278 if (sa.sa.sa_family == AF_INET)
279 return sizeof(sa.in4);
280 if (sa.sa.sa_family == AF_INET6)
281 return sizeof(sa.in6);