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') && port == -1)
32 /* Port -1: Means UDP IPV4 port binding - Special case
35 memset(&servaddr, 0, sizeof(servaddr));
36 servaddr.in4.sin_family = AF_INET;
38 else if (!irc::sockets::aptosa(addr, port, &servaddr))
41 ret = SE->Bind(sockfd, &servaddr.sa, sa_size(servaddr));
51 if (SE->Listen(sockfd, Config->MaxConn) == -1)
53 this->Logs->Log("SOCKET",DEFAULT,"ERROR in listen(): %s",strerror(errno));
58 this->Logs->Log("SOCKET",DEBUG,"New socket binding for %d with listen: %s:%d", sockfd, addr, port);
59 SE->NonBlocking(sockfd);
65 this->Logs->Log("SOCKET",DEBUG,"New socket binding for %d without listen: %s:%d", sockfd, addr, port);
72 int irc::sockets::OpenTCPSocket(const std::string& addr, int socktype)
76 struct linger linger = { 0, 0 };
80 sockfd = socket (PF_INET6, socktype, 0);
83 sockfd = socket (PF_INET, socktype, 0);
85 else if (addr.find(':') != std::string::npos)
86 sockfd = socket (PF_INET6, socktype, 0);
88 sockfd = socket (PF_INET, socktype, 0);
96 setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
97 /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
100 setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
105 // XXX: it would be VERY nice to genericize this so all listen stuff (server/client) could use the one function. -- w00t
106 int InspIRCd::BindPorts(FailedPortList &failed_ports)
109 std::vector<ListenSocketBase*> old_ports(ports.begin(), ports.end());
111 for (int count = 0;; count++)
113 ConfigTag* tag = ServerInstance->Config->ConfValue("bind", count);
116 std::string porttag = tag->getString("port");
117 std::string Addr = tag->getString("address");
118 std::string Type = tag->getString("type");
119 std::string Desc = tag->getString("ssl");
121 if (strncmp(Addr.c_str(), "::ffff:", 7) == 0)
122 this->Logs->Log("SOCKET",DEFAULT, "Using 4in6 (::ffff:) isn't recommended. You should bind IPv4 addresses directly instead.");
124 if (Type.empty() || Type == "clients")
126 irc::portparser portrange(porttag, false);
128 while (0 != (portno = portrange.GetToken()))
130 irc::sockets::sockaddrs bindspec;
131 irc::sockets::aptosa(Addr, portno, &bindspec);
132 std::string bind_readable = irc::sockets::satouser(&bindspec);
135 for (std::vector<ListenSocketBase *>::iterator n = old_ports.begin(); n != old_ports.end(); ++n)
137 if ((*n)->GetBindDesc() == bind_readable)
146 ClientListenSocket *ll = new ClientListenSocket(portno, Addr, "clients", Desc.empty() ? "plaintext" : Desc);
147 if (ll->GetFd() > -1)
154 failed_ports.push_back(std::make_pair(bind_readable, strerror(errno)));
162 std::vector<ListenSocketBase *>::iterator n = ports.begin();
163 for (std::vector<ListenSocketBase *>::iterator o = old_ports.begin(); o != old_ports.end(); ++o)
165 while (n != ports.end() && *n != *o)
167 if (n == ports.end())
169 this->Logs->Log("SOCKET",ERROR,"Port bindings slipped out of vector, aborting close!");
173 this->Logs->Log("SOCKET",DEFAULT, "Port binding %s was removed from the config file, closing.",
174 (*n)->GetBindDesc().c_str());
177 // this keeps the iterator valid, pointing to the next element
184 bool irc::sockets::aptosa(const std::string& addr, int port, irc::sockets::sockaddrs* sa)
186 memset(sa, 0, sizeof(*sa));
190 sa->in6.sin6_family = AF_INET6;
191 sa->in6.sin6_port = htons(port);
193 sa->in4.sin_family = AF_INET;
194 sa->in4.sin_port = htons(port);
198 else if (inet_pton(AF_INET, addr.c_str(), &sa->in4.sin_addr) > 0)
200 sa->in4.sin_family = AF_INET;
201 sa->in4.sin_port = htons(port);
204 else if (inet_pton(AF_INET6, addr.c_str(), &sa->in6.sin6_addr) > 0)
206 sa->in6.sin6_family = AF_INET6;
207 sa->in6.sin6_port = htons(port);
213 bool irc::sockets::satoap(const irc::sockets::sockaddrs* sa, std::string& addr, int &port) {
214 char addrv[INET6_ADDRSTRLEN+1];
215 if (sa->sa.sa_family == AF_INET)
217 if (!inet_ntop(AF_INET, &sa->in4.sin_addr, addrv, sizeof(addrv)))
220 port = ntohs(sa->in4.sin_port);
223 else if (sa->sa.sa_family == AF_INET6)
225 if (!inet_ntop(AF_INET6, &sa->in6.sin6_addr, addrv, sizeof(addrv)))
228 port = ntohs(sa->in6.sin6_port);
234 static const char all_zero[16] = {0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
236 std::string irc::sockets::satouser(const irc::sockets::sockaddrs* sa) {
238 if (sa->sa.sa_family == AF_INET)
240 if (sa->in4.sin_addr.s_addr == 0)
242 sprintf(buffer, "*:%u", ntohs(sa->in4.sin_port));
246 const uint8_t* bits = reinterpret_cast<const uint8_t*>(&sa->in4.sin_addr);
247 sprintf(buffer, "%d.%d.%d.%d:%u", bits[0], bits[1], bits[2], bits[3], ntohs(sa->in4.sin_port));
250 else if (sa->sa.sa_family == AF_INET6)
252 if (!memcmp(all_zero, &sa->in6.sin6_addr, 16))
254 sprintf(buffer, "*:%u", ntohs(sa->in6.sin6_port));
259 if (!inet_ntop(AF_INET6, &sa->in6.sin6_addr, buffer+1, MAXBUF - 10))
260 return "<unknown>"; // should never happen, buffer is large enough
261 int len = strlen(buffer);
262 // no need for snprintf, buffer has at least 9 chars left, max short len = 5
263 sprintf(buffer + len, "]:%u", ntohs(sa->in6.sin6_port));
268 return std::string(buffer);
271 int irc::sockets::sa_size(const irc::sockets::sockaddrs& sa)
273 if (sa.sa.sa_family == AF_INET)
274 return sizeof(sa.in4);
275 if (sa.sa.sa_family == AF_INET6)
276 return sizeof(sa.in6);