X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fsocket.cpp;h=b45322c3d182ebb58c5a77409f3bab2f0837cba2;hb=3df81381bcfee4531599ddb417a31e7efca2528e;hp=9207135665997a49f383cd8c2dbaaf77d9954e0e;hpb=d066a23b4d2904717e3b5099dd02d25f7fd9d07a;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/socket.cpp b/src/socket.cpp index 920713566..3a15c8a56 100644 --- a/src/socket.cpp +++ b/src/socket.cpp @@ -2,66 +2,316 @@ * | Inspire Internet Relay Chat Daemon | * +------------------------------------+ * - * Inspire is copyright (C) 2002-2004 ChatSpike-Dev. - * E-mail: - * - * - * - * Written by Craig Edwards, Craig McLure, and others. + * InspIRCd: (C) 2002-2009 InspIRCd Development Team + * See: http://wiki.inspircd.org/Credits + * * This program is free but copyrighted software; see * the file COPYING for details. * * --------------------------------------------------- */ -using namespace std; - -#include "inspircd_config.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include "socket.h" +/* $Core */ + #include "inspircd.h" -#include "inspircd_io.h" -#include "inspircd_util.h" -#include "inspstring.h" -#include "helperfuncs.h" - -extern FILE *log_file; -extern int boundPortCount; -extern int openSockfd[MAXSOCKS]; -extern time_t TIME; -extern bool unlimitcore; -extern int MaxConn; - -InspSocket::InspSocket() +#include "socket.h" +#include "socketengine.h" + +/** This will bind a socket to a port. It works for UDP/TCP. + * It can only bind to IP addresses, if you wish to bind to hostnames + * you should first resolve them using class 'Resolver'. + */ +bool InspIRCd::BindSocket(int sockfd, int port, const char* addr, bool dolisten) +{ + /* We allocate 2 of these, because sockaddr_in6 is larger than sockaddr (ugh, hax) */ + sockaddr* servaddr = new sockaddr[2]; + memset(servaddr,0,sizeof(sockaddr)*2); + + int ret, size; + + if (*addr == '*') + addr = ""; + +#ifdef IPV6 + if (*addr) + { + /* There is an address here. Is it ipv6? */ + if (strchr(addr,':')) + { + /* Yes it is */ + in6_addr addy; + if (inet_pton(AF_INET6, addr, &addy) < 1) + { + delete[] servaddr; + return false; + } + + ((sockaddr_in6*)servaddr)->sin6_family = AF_INET6; + memcpy(&(((sockaddr_in6*)servaddr)->sin6_addr), &addy, sizeof(in6_addr)); + ((sockaddr_in6*)servaddr)->sin6_port = htons(port); + size = sizeof(sockaddr_in6); + } + else + { + /* No, its not */ + in_addr addy; + if (inet_pton(AF_INET, addr, &addy) < 1) + { + delete[] servaddr; + return false; + } + + ((sockaddr_in*)servaddr)->sin_family = AF_INET; + ((sockaddr_in*)servaddr)->sin_addr = addy; + ((sockaddr_in*)servaddr)->sin_port = htons(port); + size = sizeof(sockaddr_in); + } + } + else + { + if (port == -1) + { + /* Port -1: Means UDP IPV4 port binding - Special case + * used by DNS engine. + */ + ((sockaddr_in*)servaddr)->sin_family = AF_INET; + ((sockaddr_in*)servaddr)->sin_addr.s_addr = htonl(INADDR_ANY); + ((sockaddr_in*)servaddr)->sin_port = 0; + size = sizeof(sockaddr_in); + } + else + { + /* Theres no address here, default to ipv6 bind to all */ + ((sockaddr_in6*)servaddr)->sin6_family = AF_INET6; + memset(&(((sockaddr_in6*)servaddr)->sin6_addr), 0, sizeof(in6_addr)); + ((sockaddr_in6*)servaddr)->sin6_port = htons(port); + size = sizeof(sockaddr_in6); + } + } +#else + /* If we aren't built with ipv6, the choice becomes simple */ + ((sockaddr_in*)servaddr)->sin_family = AF_INET; + if (*addr) + { + /* There is an address here. */ + in_addr addy; + if (inet_pton(AF_INET, addr, &addy) < 1) + { + delete[] servaddr; + return false; + } + ((sockaddr_in*)servaddr)->sin_addr = addy; + } + else + { + /* Bind ipv4 to all */ + ((sockaddr_in*)servaddr)->sin_addr.s_addr = htonl(INADDR_ANY); + } + /* Bind ipv4 port number */ + ((sockaddr_in*)servaddr)->sin_port = htons(port); + size = sizeof(sockaddr_in); +#endif + ret = SE->Bind(sockfd, servaddr, size); + delete[] servaddr; + + if (ret < 0) + { + return false; + } + else + { + if (dolisten) + { + if (SE->Listen(sockfd, Config->MaxConn) == -1) + { + this->Logs->Log("SOCKET",DEFAULT,"ERROR in listen(): %s",strerror(errno)); + return false; + } + else + { + this->Logs->Log("SOCKET",DEBUG,"New socket binding for %d with listen: %s:%d", sockfd, addr, port); + SE->NonBlocking(sockfd); + return true; + } + } + else + { + this->Logs->Log("SOCKET",DEBUG,"New socket binding for %d without listen: %s:%d", sockfd, addr, port); + return true; + } + } +} + +// Open a TCP Socket +int irc::sockets::OpenTCPSocket(const char* addr, int socktype) { - this->state = I_DISCONNECTED; + int sockfd; + int on = 1; + addr = addr; + struct linger linger = { 0, 0 }; +#ifdef IPV6 + if (!*addr) + { + sockfd = socket (PF_INET6, socktype, 0); + if (sockfd < 0) + sockfd = socket (PF_INET, socktype, 0); + } + else if (strchr(addr,':')) + sockfd = socket (PF_INET6, socktype, 0); + else + sockfd = socket (PF_INET, socktype, 0); + if (sockfd < 0) +#else + if ((sockfd = socket (PF_INET, socktype, 0)) < 0) +#endif + { + return ERROR; + } + else + { + setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on)); + /* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */ + linger.l_onoff = 1; + linger.l_linger = 1; + setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (char*)&linger,sizeof(linger)); + return (sockfd); + } } -InspSocket::InspSocket(std::string host, int port, bool listening) +// XXX: it would be VERY nice to genericize this so all listen stuff (server/client) could use the one function. -- w00t +int InspIRCd::BindPorts(bool, int &ports_found, FailedPortList &failed_ports) { + char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF]; + int bound = 0; + bool started_with_nothing = (Config->ports.size() == 0); + std::vector > old_ports; + + /* XXX: Make a copy of the old ip/port pairs here */ + for (std::vector::iterator o = Config->ports.begin(); o != Config->ports.end(); ++o) + old_ports.push_back(make_pair((*o)->GetIP(), (*o)->GetPort())); + + for (int count = 0; count < Config->ConfValueEnum(Config->config_data, "bind"); count++) + { + Config->ConfValue(Config->config_data, "bind", "port", count, configToken, MAXBUF); + Config->ConfValue(Config->config_data, "bind", "address", count, Addr, MAXBUF); + Config->ConfValue(Config->config_data, "bind", "type", count, Type, MAXBUF); + + if (strncmp(Addr, "::ffff:", 7) == 0) + this->Logs->Log("SOCKET",DEFAULT, "Using 4in6 (::ffff:) isn't recommended. You should bind IPv4 addresses directly instead."); + + if ((!*Type) || (!strcmp(Type,"clients"))) + { + irc::portparser portrange(configToken, false); + int portno = -1; + while (0 != (portno = portrange.GetToken())) + { + if (*Addr == '*') + *Addr = 0; + + bool skip = false; + for (std::vector::iterator n = Config->ports.begin(); n != Config->ports.end(); ++n) + { + if (((*n)->GetIP() == Addr) && ((*n)->GetPort() == portno)) + { + skip = true; + /* XXX: Here, erase from our copy of the list */ + for (std::vector >::iterator k = old_ports.begin(); k != old_ports.end(); ++k) + { + if ((k->first == Addr) && (k->second == portno)) + { + old_ports.erase(k); + break; + } + } + } + } + if (!skip) + { + ClientListenSocket *ll = new ClientListenSocket(this, portno, Addr); + if (ll->GetFd() > -1) + { + bound++; + Config->ports.push_back(ll); + } + else + { + failed_ports.push_back(std::make_pair((*Addr ? Addr : "*") + std::string(":") + ConvToStr(portno), strerror(errno))); + } + ports_found++; + } + } + } + } + + /* XXX: Here, anything left in our copy list, close as removed */ + if (!started_with_nothing) + { + for (size_t k = 0; k < old_ports.size(); ++k) + { + for (std::vector::iterator n = Config->ports.begin(); n != Config->ports.end(); ++n) + { + if (((*n)->GetIP() == old_ports[k].first) && ((*n)->GetPort() == old_ports[k].second)) + { + this->Logs->Log("SOCKET",DEFAULT,"Port binding %s:%d was removed from the config file, closing.", old_ports[k].first.c_str(), old_ports[k].second); + delete *n; + Config->ports.erase(n); + break; + } + } + } + } + + return bound; } -void InspSocket::Poll() +const char* irc::sockets::insp_ntoa(insp_inaddr n) { + static char buf[1024]; + inet_ntop(AF_FAMILY, &n, buf, sizeof(buf)); + return buf; } -int InspSocket::OnConnected() { } -int InspSocket::OnError() { } -int InspSocket::OnDisconnect() { } -int InspSocket::OnIncomingConnection() { } +int irc::sockets::insp_aton(const char* a, insp_inaddr* n) +{ + return inet_pton(AF_FAMILY, a, n); +} -InspSocket::~InspSocket() +int irc::sockets::aptosa(const char* addr, int port, irc::sockets::sockaddrs* sa) { + memset(sa, 0, sizeof(sa)); + if (inet_pton(AF_INET, addr, &sa->in4.sin_addr) > 0) + { + sa->in4.sin_family = AF_INET; + sa->in4.sin_port = htons(port); + return true; + } + else if (inet_pton(AF_INET6, addr, &sa->in6.sin6_addr) > 0) + { + sa->in6.sin6_family = AF_INET6; + sa->in6.sin6_port = htons(port); + return true; + } + return false; +} + +int irc::sockets::satoap(const irc::sockets::sockaddrs* sa, std::string& addr, int &port) { + char addrv[INET6_ADDRSTRLEN+1]; + if (sa->sa.sa_family == AF_INET) + { + if (!inet_ntop(AF_INET, &sa->in4.sin_addr, addrv, sizeof(addrv))) + return false; + addr = addrv; + port = ntohs(sa->in4.sin_port); + return true; + } + else if (sa->sa.sa_family == AF_INET6) + { + if (!inet_ntop(AF_INET6, &sa->in6.sin6_addr, addrv, sizeof(addrv))) + return false; + addr = addrv; + port = ntohs(sa->in6.sin6_port); + return true; + } + return false; } -/* -int BindSocket (int sockfd, struct sockaddr_in client, struct sockaddr_in server, int port, char* addr) -int OpenTCPSocket (void) -*/