* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * 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;
+/* $Core */
-#include "inspircd_config.h"
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <string>
-#include <unistd.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <sstream>
-#include <iostream>
-#include <fstream>
-#include <stdexcept>
-#include "socket.h"
#include "inspircd.h"
-#include "inspircd_io.h"
-#include "inspstring.h"
-#include "helperfuncs.h"
+#include "socket.h"
#include "socketengine.h"
-
-extern InspIRCd* ServerInstance;
-extern ServerConfig* Config;
-extern time_t TIME;
-
-InspSocket* socket_ref[MAX_DESCRIPTORS];
-
-InspSocket::InspSocket()
+/** 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)
{
- this->state = I_DISCONNECTED;
- this->fd = -1;
- this->ClosePending = false;
-}
+ /* 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);
-InspSocket::InspSocket(int newfd, char* ip)
-{
- this->fd = newfd;
- this->state = I_CONNECTED;
- strlcpy(this->IP,ip,MAXBUF);
- this->ClosePending = false;
- ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
- socket_ref[this->fd] = this;
-}
+ int ret, size;
-InspSocket::InspSocket(const std::string &ahost, int aport, bool listening, unsigned long maxtime) : fd(-1)
-{
- strlcpy(host,ahost.c_str(),MAXBUF);
- this->ClosePending = false;
- if (listening) {
- if ((this->fd = OpenTCPSocket()) == ERROR)
+ if (*addr == '*')
+ addr = "";
+
+#ifdef IPV6
+ if (*addr)
+ {
+ /* There is an address here. Is it ipv6? */
+ if (strchr(addr,':'))
{
- this->fd = -1;
- this->state = I_ERROR;
- this->OnError(I_ERR_SOCKET);
- this->ClosePending = true;
- log(DEBUG,"OpenTCPSocket() error");
- return;
+ /* 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
{
- if (!BindSocket(this->fd,this->client,this->server,aport,(char*)ahost.c_str()))
+ /* No, its not */
+ in_addr addy;
+ if (inet_pton(AF_INET, addr, &addy) < 1)
{
- this->Close();
- this->fd = -1;
- this->state = I_ERROR;
- this->OnError(I_ERR_BIND);
- this->ClosePending = true;
- log(DEBUG,"BindSocket() error %s",strerror(errno));
- return;
+ delete[] servaddr;
+ return false;
}
- else
- {
- this->state = I_LISTENING;
- ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
- socket_ref[this->fd] = this;
- log(DEBUG,"New socket now in I_LISTENING state");
- return;
- }
- }
+
+ ((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
{
- strlcpy(this->host,ahost.c_str(),MAXBUF);
- this->port = aport;
-
- if (!inet_aton(host,&addy))
+ if (port == -1)
{
- log(DEBUG,"Attempting to resolve %s",this->host);
- /* Its not an ip, spawn the resolver */
- this->dns.SetNS(std::string(Config->DNSServer));
- this->dns.ForwardLookupWithFD(host,fd);
- timeout_end = time(NULL) + maxtime;
- timeout = false;
- this->state = I_RESOLVING;
- socket_ref[this->fd] = this;
+ /* 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
{
- log(DEBUG,"No need to resolve %s",this->host);
- strlcpy(this->IP,host,MAXBUF);
- timeout_end = time(NULL) + maxtime;
- this->DoConnect();
+ /* 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);
}
}
-}
-
-void InspSocket::SetQueues(int nfd)
-{
- // attempt to increase socket sendq and recvq as high as its possible
- int sendbuf = 32768;
- int recvbuf = 32768;
- setsockopt(nfd,SOL_SOCKET,SO_SNDBUF,(const void *)&sendbuf,sizeof(sendbuf));
- setsockopt(nfd,SOL_SOCKET,SO_RCVBUF,(const void *)&recvbuf,sizeof(sendbuf));
-}
-
-bool InspSocket::DoResolve()
-{
- log(DEBUG,"In DoResolve(), trying to resolve IP");
- if (this->dns.HasResult())
+#else
+ /* If we aren't built with ipv6, the choice becomes simple */
+ ((sockaddr_in*)servaddr)->sin_family = AF_INET;
+ if (*addr)
{
- log(DEBUG,"Socket has result");
- std::string res_ip = dns.GetResultIP();
- if (res_ip != "")
- {
- log(DEBUG,"Socket result set to %s",res_ip.c_str());
- strlcpy(this->IP,res_ip.c_str(),MAXBUF);
- socket_ref[this->fd] = NULL;
- }
- else
+ /* There is an address here. */
+ in_addr addy;
+ if (inet_pton(AF_INET, addr, &addy) < 1)
{
- log(DEBUG,"Socket DNS failure");
- this->Close();
- this->state = I_ERROR;
- this->OnError(I_ERR_RESOLVE);
- this->fd = -1;
- this->ClosePending = true;
+ delete[] servaddr;
return false;
}
- return this->DoConnect();
+ ((sockaddr_in*)servaddr)->sin_addr = addy;
}
- log(DEBUG,"No result for socket yet!");
- return true;
-}
-
-bool InspSocket::DoConnect()
-{
- log(DEBUG,"In DoConnect()");
- if ((this->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
+ 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)
{
- log(DEBUG,"Cant socket()");
- this->state = I_ERROR;
- this->OnError(I_ERR_SOCKET);
- this->fd = -1;
return false;
}
-
- log(DEBUG,"Part 2 DoConnect() %s",this->IP);
- inet_aton(this->IP,&addy);
- addr.sin_family = AF_INET;
- addr.sin_addr = addy;
- addr.sin_port = htons(this->port);
-
- int flags;
- flags = fcntl(this->fd, F_GETFL, 0);
- fcntl(this->fd, F_SETFL, flags | O_NONBLOCK);
-
- if (connect(this->fd, (sockaddr*)&this->addr,sizeof(this->addr)) == -1)
+ else
{
- if (errno != EINPROGRESS)
+ if (dolisten)
{
- log(DEBUG,"Error connect() %d: %s",this->fd,strerror(errno));
- this->OnError(I_ERR_CONNECT);
- this->state = I_ERROR;
- this->Close();
- this->fd = -1;
- this->ClosePending = true;
- return false;
+ 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;
}
}
- this->state = I_CONNECTING;
- ServerInstance->SE->AddFd(this->fd,false,X_ESTAB_MODULE);
- socket_ref[this->fd] = this;
- this->SetQueues(this->fd);
- log(DEBUG,"Returning true from InspSocket::DoConnect");
- return true;
}
-
-void InspSocket::Close()
+// Open a TCP Socket
+int irc::sockets::OpenTCPSocket(const char* addr, int socktype)
{
- if (this->fd != -1)
+ int sockfd;
+ int on = 1;
+ addr = addr;
+ struct linger linger = { 0, 0 };
+#ifdef IPV6
+ if (!*addr)
{
- this->OnClose();
- shutdown(this->fd,2);
- close(this->fd);
- socket_ref[this->fd] = NULL;
- this->ClosePending = true;
- this->fd = -1;
+ sockfd = socket (PF_INET6, socktype, 0);
+ if (sockfd < 0)
+ sockfd = socket (PF_INET, socktype, 0);
}
-}
-
-std::string InspSocket::GetIP()
-{
- return this->IP;
-}
-
-char* InspSocket::Read()
-{
- if ((fd < 0) || (fd > MAX_DESCRIPTORS))
- return NULL;
- int n = recv(this->fd,this->ibuf,sizeof(this->ibuf),0);
- if ((n > 0) && (n <= (int)sizeof(this->ibuf)))
+ 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
{
- ibuf[n] = 0;
- return ibuf;
+ return ERROR;
}
else
{
- if (errno == EAGAIN)
- {
- return "";
- }
- else
- {
- log(DEBUG,"EOF or error on socket: %s",strerror(errno));
- return NULL;
- }
+ 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);
}
}
-void InspSocket::MarkAsClosed()
+// XXX: it would be VERY nice to genericize this so all listen stuff (server/client) could use the one function. -- w00t
+int InspIRCd::BindPorts(FailedPortList &failed_ports)
{
- log(DEBUG,"Marked as closed");
- this->ClosePending = true;
-}
-
-// There are two possible outcomes to this function.
-// It will either write all of the data, or an undefined amount.
-// If an undefined amount is written the connection has failed
-// and should be aborted.
-int InspSocket::Write(const std::string &data)
-{
- if (this->ClosePending)
- return false;
+ char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
+ int bound = 0;
+ bool started_with_nothing = (ports.size() == 0);
+ std::vector<std::pair<std::string, int> > old_ports;
- /*int result = write(this->fd,data.c_str(),data.length());
- if (result < 1)
- return false;
- return true;*/
+ /* XXX: Make a copy of the old ip/port pairs here */
+ for (std::vector<ListenSocketBase *>::iterator o = ports.begin(); o != ports.end(); ++o)
+ old_ports.push_back(make_pair((*o)->GetIP(), (*o)->GetPort()));
- /* Try and append the data to the back of the queue, and send it on its way
- */
- outbuffer.push_back(data);
- return (!this->FlushWriteBuffer());
-}
+ for (int count = 0; count < Config->ConfValueEnum("bind"); count++)
+ {
+ Config->ConfValue("bind", "port", count, configToken, MAXBUF);
+ Config->ConfValue("bind", "address", count, Addr, MAXBUF);
+ Config->ConfValue("bind", "type", count, Type, MAXBUF);
-bool InspSocket::FlushWriteBuffer()
-{
- if (this->ClosePending)
- return true;
+ 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 ((this->fd > -1) && (this->state == I_CONNECTED))
- {
- if (outbuffer.size())
+ if ((!*Type) || (!strcmp(Type,"clients")))
{
- int result = write(this->fd,outbuffer[0].c_str(),outbuffer[0].length());
- if (result > 0)
+ irc::portparser portrange(configToken, false);
+ int portno = -1;
+ while (0 != (portno = portrange.GetToken()))
{
- if ((unsigned int)result == outbuffer[0].length())
+ if (*Addr == '*')
+ *Addr = 0;
+
+ bool skip = false;
+ for (std::vector<ListenSocketBase *>::iterator n = ports.begin(); n != ports.end(); ++n)
{
- /* The whole block was written (usually a line)
- * Pop the block off the front of the queue
- */
- outbuffer.pop_front();
+ if (((*n)->GetIP() == Addr) && ((*n)->GetPort() == portno))
+ {
+ skip = true;
+ /* XXX: Here, erase from our copy of the list */
+ for (std::vector<std::pair<std::string, int> >::iterator k = old_ports.begin(); k != old_ports.end(); ++k)
+ {
+ if ((k->first == Addr) && (k->second == portno))
+ {
+ old_ports.erase(k);
+ break;
+ }
+ }
+ }
}
- else
+ if (!skip)
{
- std::string temp = outbuffer[0].substr(result);
- outbuffer[0] = temp;
+ ClientListenSocket *ll = new ClientListenSocket(this, portno, Addr);
+ if (ll->GetFd() > -1)
+ {
+ bound++;
+ ports.push_back(ll);
+ }
+ else
+ {
+ failed_ports.push_back(std::make_pair((*Addr ? Addr : "*") + std::string(":") + ConvToStr(portno), strerror(errno)));
+ }
}
}
- else if ((result == -1) && (errno != EAGAIN))
+ }
+ }
+
+ /* 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<ListenSocketBase *>::iterator n = ports.begin(); n != ports.end(); ++n)
{
- log(DEBUG,"Write error on socket: %s",strerror(errno));
- this->OnError(I_ERR_WRITE);
- this->state = I_ERROR;
- return true;
+ 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;
+ ports.erase(n);
+ break;
+ }
}
}
}
- return false;
+
+ return bound;
+}
+
+const char* irc::sockets::insp_ntoa(insp_inaddr n)
+{
+ static char buf[1024];
+ inet_ntop(AF_FAMILY, &n, buf, sizeof(buf));
+ return buf;
+}
+
+int irc::sockets::insp_aton(const char* a, insp_inaddr* n)
+{
+ return inet_pton(AF_FAMILY, a, n);
}
-bool InspSocket::Timeout(time_t current)
+int irc::sockets::aptosa(const char* addr, int port, irc::sockets::sockaddrs* sa)
{
- if (!socket_ref[this->fd] || !ServerInstance->SE->HasFd(this->fd))
+ memset(sa, 0, sizeof(*sa));
+ if (!addr || !*addr)
{
- log(DEBUG,"No FD or socket ref");
- return false;
+#ifdef IPV6
+ sa->in6.sin6_family = AF_INET6;
+ sa->in6.sin6_port = htons(port);
+#else
+ sa->in4.sin_family = AF_INET;
+ sa->in4.sin_port = htons(port);
+#endif
+ return true;
}
-
- if (this->ClosePending)
+ else if (inet_pton(AF_INET, addr, &sa->in4.sin_addr) > 0)
{
- log(DEBUG,"Close is pending");
+ sa->in4.sin_family = AF_INET;
+ sa->in4.sin_port = htons(port);
return true;
}
-
- if (((this->state == I_RESOLVING) || (this->state == I_CONNECTING)) && (current > timeout_end))
+ else if (inet_pton(AF_INET6, addr, &sa->in6.sin6_addr) > 0)
{
- log(DEBUG,"Timed out, current=%lu timeout_end=%lu");
- // for non-listening sockets, the timeout can occur
- // which causes termination of the connection after
- // the given number of seconds without a successful
- // connection.
- this->OnTimeout();
- this->OnError(I_ERR_TIMEOUT);
- timeout = true;
- this->state = I_ERROR;
+ sa->in6.sin6_family = AF_INET6;
+ sa->in6.sin6_port = htons(port);
return true;
}
- return this->FlushWriteBuffer();
+ return false;
}
-bool InspSocket::Poll()
-{
- if (!socket_ref[this->fd] || !ServerInstance->SE->HasFd(this->fd))
- return false;
-
- int incoming = -1;
- bool n = true;
-
- if ((fd < 0) || (fd > MAX_DESCRIPTORS) || (this->ClosePending))
- return false;
-
- switch (this->state)
+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)
{
- case I_RESOLVING:
- log(DEBUG,"State = I_RESOLVING, calling DoResolve()");
- return this->DoResolve();
- break;
- case I_CONNECTING:
- log(DEBUG,"State = I_CONNECTING");
- this->SetState(I_CONNECTED);
- /* Our socket was in write-state, so delete it and re-add it
- * in read-state.
- */
- ServerInstance->SE->DelFd(this->fd);
- ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
- return this->OnConnected();
- break;
- case I_LISTENING:
- length = sizeof (client);
- incoming = accept (this->fd, (sockaddr*)&client,&length);
- this->SetQueues(incoming);
- this->OnIncomingConnection(incoming,inet_ntoa(client.sin_addr));
- return true;
- break;
- case I_CONNECTED:
- n = this->OnDataReady();
- /* Flush any pending, but not till after theyre done with the event
- * so there are less write calls involved.
- * Both FlushWriteBuffer AND the return result of OnDataReady must
- * return true for this to be ok.
- */
- return (n && !this->FlushWriteBuffer());
- break;
- default:
- break;
+ if (!inet_ntop(AF_INET, &sa->in4.sin_addr, addrv, sizeof(addrv)))
+ return false;
+ addr = addrv;
+ port = ntohs(sa->in4.sin_port);
+ return true;
}
- return true;
-}
-
-void InspSocket::SetState(InspSocketState s)
-{
- log(DEBUG,"Socket state change");
- this->state = s;
-}
-
-InspSocketState InspSocket::GetState()
-{
- return this->state;
-}
-
-int InspSocket::GetFd()
-{
- return this->fd;
+ 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;
}
-bool InspSocket::OnConnected() { return true; }
-void InspSocket::OnError(InspSocketError e) { return; }
-int InspSocket::OnDisconnect() { return 0; }
-int InspSocket::OnIncomingConnection(int newfd, char* ip) { return 0; }
-bool InspSocket::OnDataReady() { return true; }
-void InspSocket::OnTimeout() { return; }
-void InspSocket::OnClose() { return; }
-
-InspSocket::~InspSocket()
+int irc::sockets::sa_size(irc::sockets::sockaddrs& sa)
{
- this->Close();
+ if (sa.sa.sa_family == AF_INET)
+ return sizeof(sa.in4);
+ if (sa.sa.sa_family == AF_INET6)
+ return sizeof(sa.in6);
+ return 0;
}
projects / user / henk / code / inspircd.git / blobdiff