* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * Inspire is copyright (C) 2002-2004 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
+ * InspIRCd: (C) 2002-2008 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
-using namespace std;
-
-#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 "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()
-{
- this->state = I_DISCONNECTED;
-}
+#include "socket.h"
+#include "socketengine.h"
-InspSocket::InspSocket(std::string host, int port, bool listening, unsigned long maxtime)
+/** 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)
{
- if (listening) {
- } else {
- char* ip;
- this->host = host;
- hostent* hoste = gethostbyname(host.c_str());
- if (!hoste) {
- ip = (char*)host.c_str();
- } else {
- struct in_addr* ia = (in_addr*)hoste->h_addr;
- ip = inet_ntoa(*ia);
+ /* 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;
+ }
- timeout_end = time(NULL)+maxtime;
- timeout = false;
- if ((this->fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
+ ((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)
{
- this->state = I_ERROR;
- this->OnError(I_ERR_SOCKET);
- return;
+ /* 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);
}
- this->port = port;
- inet_aton(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)
- {
- if (errno != EINPROGRESS)
- {
- this->Close();
- this->OnError(I_ERR_CONNECT);
- this->state = I_ERROR;
- return;
- }
- }
- this->state = I_CONNECTING;
- return;
}
-}
-
-void InspSocket::Close()
-{
- if (this->fd != -1)
+#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
{
- this->OnClose();
- shutdown(this->fd,2);
- close(this->fd);
- this->fd = -1;
+ /* 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;
-char* InspSocket::Read()
-{
- int n = recv(this->fd,this->ibuf,sizeof(this->ibuf),0);
- if (n > 0)
+ if (ret < 0)
{
- return ibuf;
+ return false;
}
else
{
- log(DEBUG,"EOF or error on socket");
- return NULL;
+ 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;
+ }
}
}
-// 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(std::string data)
+// Open a TCP Socket
+int irc::sockets::OpenTCPSocket(const char* addr, int socktype)
{
- char* d = (char*)data.c_str();
- unsigned int written = 0;
- int n = 0;
- int s = data.length();
- while ((written < data.length()) && (n >= 0))
+ int sockfd;
+ int on = 1;
+ addr = addr;
+ struct linger linger = { 0, 0 };
+#ifdef IPV6
+ if (strchr(addr,':') || (!*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
{
- n = send(this->fd,d,s,0);
- if (n > 0)
- {
- // If we didnt write everything, advance
- // the pointers so that when we retry
- // the next time around the loop, we try
- // to write what we failed to write before.
- written += n;
- s -= n;
- d += n;
- }
+ 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);
}
- return written;
}
-bool InspSocket::Poll()
+// 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)
{
- if (time(NULL) > timeout_end)
+ char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
+ int bound = 0;
+ bool started_with_nothing = (Config->ports.size() == 0);
+ std::vector<std::pair<std::string, int> > old_ports;
+
+ /* XXX: Make a copy of the old ip/port pairs here */
+ for (std::vector<ListenSocketBase *>::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++)
{
- this->OnTimeout();
- this->Close();
- this->OnError(I_ERR_TIMEOUT);
- timeout = true;
- this->state = I_ERROR;
- return false;
+ 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<ListenSocketBase *>::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<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;
+ }
+ }
+ }
+ }
+ 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++;
+ }
+ }
+ }
}
- polls.fd = this->fd;
- state == I_CONNECTING ? polls.events = POLLOUT : polls.events = POLLIN;
- int ret = poll(&polls,1,1);
- if (ret > 0)
+ /* XXX: Here, anything left in our copy list, close as removed */
+ if (!started_with_nothing)
{
- switch (this->state)
+ for (size_t k = 0; k < old_ports.size(); ++k)
{
- case I_CONNECTING:
- this->SetState(I_CONNECTED);
- return this->OnConnected();
- break;
- case I_LISTENING:
- this->OnIncomingConnection();
- break;
- case I_CONNECTED:
- return this->OnDataReady();
- break;
- default:
- break;
+ for (std::vector<ListenSocketBase *>::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 true;
+ return bound;
}
-void InspSocket::SetState(InspSocketState s)
+const char* irc::sockets::insp_ntoa(insp_inaddr n)
{
- log(DEBUG,"Socket state change");
- this->state = s;
+ static char buf[1024];
+ inet_ntop(AF_FAMILY, &n, buf, sizeof(buf));
+ return buf;
}
-bool InspSocket::OnConnected() { return true; }
-void InspSocket::OnError(InspSocketError e) { return; }
-int InspSocket::OnDisconnect() { return 0; }
-int InspSocket::OnIncomingConnection() { return 0; }
-bool InspSocket::OnDataReady() { return true; }
-void InspSocket::OnTimeout() { return; }
-void InspSocket::OnClose() { return; }
-
-InspSocket::~InspSocket()
+int irc::sockets::insp_aton(const char* a, insp_inaddr* n)
{
- this->Close();
+ return inet_pton(AF_FAMILY, a, n);
}
-/*
-int BindSocket (int sockfd, struct sockaddr_in client, struct sockaddr_in server, int port, char* addr)
-int OpenTCPSocket (void)
-*/
+