-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- 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.
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2005-2008 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
*
- * ---------------------------------------------------
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-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 <stdexcept>
-#include "socket.h"
+
#include "inspircd.h"
-#include "inspircd_io.h"
-#include "inspstring.h"
-#include "helperfuncs.h"
+#include "socket.h"
#include "socketengine.h"
+using irc::sockets::sockaddrs;
-
-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;
-}
+ sockaddrs servaddr;
+ int ret;
-InspSocket::InspSocket(int newfd, char* ip)
-{
- this->fd = newfd;
- this->state = I_CONNECTED;
- this->IP = ip;
- ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_MODULE);
- socket_ref[this->fd] = this;
-}
+ if ((*addr == '*' || *addr == '\0') && port == -1)
+ {
+ /* Port -1: Means UDP IPV4 port binding - Special case
+ * used by DNS engine.
+ */
+ memset(&servaddr, 0, sizeof(servaddr));
+ servaddr.in4.sin_family = AF_INET;
+ }
+ else if (!irc::sockets::aptosa(addr, port, servaddr))
+ return false;
-InspSocket::InspSocket(std::string ahost, int aport, bool listening, unsigned long maxtime)
-{
- this->fd = -1;
- this->host = ahost;
- this->outbuffer.clear();
- if (listening) {
- if ((this->fd = OpenTCPSocket()) == ERROR)
- {
- this->fd = -1;
- this->state = I_ERROR;
- this->OnError(I_ERR_SOCKET);
- log(DEBUG,"OpenTCPSocket() error");
- return;
- }
- else
+ ret = SE->Bind(sockfd, servaddr);
+
+ if (ret < 0)
+ {
+ return false;
+ }
+ else
+ {
+ if (dolisten)
{
- if (BindSocket(this->fd,this->client,this->server,aport,(char*)ahost.c_str()) == ERROR)
+ if (SE->Listen(sockfd, Config->MaxConn) == -1)
{
- this->Close();
- this->fd = -1;
- this->state = I_ERROR;
- this->OnError(I_ERR_BIND);
- log(DEBUG,"BindSocket() error %s",strerror(errno));
- return;
+ this->Logs->Log("SOCKET",DEFAULT,"ERROR in listen(): %s",strerror(errno));
+ 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;
+ 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;
+ }
}
- else
+}
+
+int InspIRCd::BindPorts(FailedPortList &failed_ports)
+{
+ int bound = 0;
+ std::vector<ListenSocket*> old_ports(ports.begin(), ports.end());
+
+ ConfigTagList tags = ServerInstance->Config->ConfTags("bind");
+ for(ConfigIter i = tags.first; i != tags.second; ++i)
{
- this->host = ahost;
- this->port = aport;
+ ConfigTag* tag = i->second;
+ std::string porttag = tag->getString("port");
+ std::string Addr = tag->getString("address");
- if (!inet_aton(host.c_str(),&addy))
+ if (strncasecmp(Addr.c_str(), "::ffff:", 7) == 0)
+ this->Logs->Log("SOCKET",DEFAULT, "Using 4in6 (::ffff:) isn't recommended. You should bind IPv4 addresses directly instead.");
+
+ irc::portparser portrange(porttag, false);
+ int portno = -1;
+ while (0 != (portno = portrange.GetToken()))
{
- log(DEBUG,"Attempting to resolve %s",this->host.c_str());
- /* 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;
+ irc::sockets::sockaddrs bindspec;
+ if (!irc::sockets::aptosa(Addr, portno, bindspec))
+ continue;
+ std::string bind_readable = bindspec.str();
+
+ bool skip = false;
+ for (std::vector<ListenSocket*>::iterator n = old_ports.begin(); n != old_ports.end(); ++n)
+ {
+ if ((**n).bind_desc == bind_readable)
+ {
+ (*n)->bind_tag = tag; // Replace tag, we know addr and port match, but other info (type, ssl) may not
+ skip = true;
+ old_ports.erase(n);
+ break;
+ }
+ }
+ if (!skip)
+ {
+ ListenSocket* ll = new ListenSocket(tag, bindspec);
+
+ if (ll->GetFd() > -1)
+ {
+ bound++;
+ ports.push_back(ll);
+ }
+ else
+ {
+ failed_ports.push_back(std::make_pair(bind_readable, strerror(errno)));
+ delete ll;
+ }
+ }
}
- else
+ }
+
+ std::vector<ListenSocket*>::iterator n = ports.begin();
+ for (std::vector<ListenSocket*>::iterator o = old_ports.begin(); o != old_ports.end(); ++o)
+ {
+ while (n != ports.end() && *n != *o)
+ n++;
+ if (n == ports.end())
{
- log(DEBUG,"No need to resolve %s",this->host.c_str());
- this->IP = host;
- timeout_end = time(NULL) + maxtime;
- this->DoConnect();
+ this->Logs->Log("SOCKET",DEFAULT,"Port bindings slipped out of vector, aborting close!");
+ break;
}
+
+ this->Logs->Log("SOCKET",DEFAULT, "Port binding %s was removed from the config file, closing.",
+ (**n).bind_desc.c_str());
+ delete *n;
+
+ // this keeps the iterator valid, pointing to the next element
+ n = ports.erase(n);
}
-}
-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));
+ return bound;
}
-bool InspSocket::DoResolve()
+bool irc::sockets::aptosa(const std::string& addr, int port, irc::sockets::sockaddrs& sa)
{
- log(DEBUG,"In DoResolve(), trying to resolve IP");
- if (this->dns.HasResult())
+ memset(&sa, 0, sizeof(sa));
+ if (addr.empty() || addr.c_str()[0] == '*')
{
- log(DEBUG,"Socket has result");
- std::string res_ip = dns.GetResultIP();
- if (res_ip != "")
+ if (ServerInstance->Config->WildcardIPv6)
{
- log(DEBUG,"Socket result set to %s",res_ip.c_str());
- this->IP = res_ip;
- socket_ref[this->fd] = NULL;
+ sa.in6.sin6_family = AF_INET6;
+ sa.in6.sin6_port = htons(port);
}
else
{
- log(DEBUG,"Socket DNS failure");
- this->Close();
- this->state = I_ERROR;
- this->OnError(I_ERR_RESOLVE);
- return false;
+ sa.in4.sin_family = AF_INET;
+ sa.in4.sin_port = htons(port);
}
- return this->DoConnect();
+ return true;
}
- 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 if (inet_pton(AF_INET, addr.c_str(), &sa.in4.sin_addr) > 0)
{
- log(DEBUG,"Cant socket()");
- this->state = I_ERROR;
- this->OnError(I_ERR_SOCKET);
- return false;
+ sa.in4.sin_family = AF_INET;
+ sa.in4.sin_port = htons(port);
+ return true;
}
-
- log(DEBUG,"Part 2 DoConnect() %s",this->IP.c_str());
- inet_aton(this->IP.c_str(),&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 (inet_pton(AF_INET6, addr.c_str(), &sa.in6.sin6_addr) > 0)
{
- if (errno != EINPROGRESS)
- {
- log(DEBUG,"Error connect() %d: %s",this->fd,strerror(errno));
- this->OnError(I_ERR_CONNECT);
- this->state = I_ERROR;
- this->Close();
- return false;
- }
+ sa.in6.sin6_family = AF_INET6;
+ sa.in6.sin6_port = htons(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;
+ return false;
}
+int irc::sockets::sockaddrs::port() const
+{
+ if (sa.sa_family == AF_INET)
+ return ntohs(in4.sin_port);
+ if (sa.sa_family == AF_INET6)
+ return ntohs(in6.sin6_port);
+ return -1;
+}
-void InspSocket::Close()
+std::string irc::sockets::sockaddrs::addr() const
{
- if (this->fd != -1)
+ char addrv[INET6_ADDRSTRLEN+1];
+ if (sa.sa_family == AF_INET)
+ {
+ if (!inet_ntop(AF_INET, &in4.sin_addr, addrv, sizeof(addrv)))
+ return "";
+ return addrv;
+ }
+ else if (sa.sa_family == AF_INET6)
{
- this->OnClose();
- shutdown(this->fd,2);
- close(this->fd);
- socket_ref[this->fd] = NULL;
- this->fd = -1;
+ if (!inet_ntop(AF_INET6, &in6.sin6_addr, addrv, sizeof(addrv)))
+ return "";
+ return addrv;
}
+ return "";
}
-std::string InspSocket::GetIP()
+bool irc::sockets::satoap(const irc::sockets::sockaddrs& sa, std::string& addr, int &port)
{
- return this->IP;
+ port = sa.port();
+ addr = sa.addr();
+ return !addr.empty();
}
-char* InspSocket::Read()
+std::string irc::sockets::sockaddrs::str() const
{
- 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)))
+ char buffer[MAXBUF];
+ if (sa.sa_family == AF_INET)
{
- ibuf[n] = 0;
- return ibuf;
+ const uint8_t* bits = reinterpret_cast<const uint8_t*>(&in4.sin_addr);
+ sprintf(buffer, "%d.%d.%d.%d:%u", bits[0], bits[1], bits[2], bits[3], ntohs(in4.sin_port));
}
- else
+ else if (sa.sa_family == AF_INET6)
{
- if (errno == EAGAIN)
- {
- return "";
- }
- else
- {
- log(DEBUG,"EOF or error on socket: %s",strerror(errno));
- return NULL;
- }
+ buffer[0] = '[';
+ if (!inet_ntop(AF_INET6, &in6.sin6_addr, buffer+1, MAXBUF - 10))
+ return "<unknown>"; // should never happen, buffer is large enough
+ int len = strlen(buffer);
+ // no need for snprintf, buffer has at least 9 chars left, max short len = 5
+ sprintf(buffer + len, "]:%u", ntohs(in6.sin6_port));
}
+ else
+ return "<unknown>";
+ return std::string(buffer);
}
-// 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)
+int irc::sockets::sockaddrs::sa_size() const
{
- /* Try and append the data to the back of the queue, and send it on its way
- */
- outbuffer.push_back(data);
- return (!this->FlushWriteBuffer());
+ if (sa.sa_family == AF_INET)
+ return sizeof(in4);
+ if (sa.sa_family == AF_INET6)
+ return sizeof(in6);
+ return 0;
}
-bool InspSocket::FlushWriteBuffer()
+bool irc::sockets::sockaddrs::operator==(const irc::sockets::sockaddrs& other) const
{
- if ((this->fd > -1) && (this->state == I_CONNECTED))
- {
- if (outbuffer.size())
- {
- int result = write(this->fd,outbuffer[0].c_str(),outbuffer[0].length());
- if (result > 0)
- {
- if ((unsigned int)result == outbuffer[0].length())
- {
- /* The whole block was written (usually a line)
- * Pop the block off the front of the queue
- */
- outbuffer.pop_front();
- }
- else
- {
- outbuffer[0] = outbuffer[0].substr(result + 1,outbuffer[0].length());
- }
- }
- else if ((result == -1) && (errno != EAGAIN))
- {
- log(DEBUG,"Write error on socket: %s",strerror(errno));
- this->OnError(I_ERR_WRITE);
- this->state = I_ERROR;
- return true;
- }
- }
- }
- return false;
+ if (sa.sa_family != other.sa.sa_family)
+ return false;
+ if (sa.sa_family == AF_INET)
+ return (in4.sin_port == other.in4.sin_port) && (in4.sin_addr.s_addr == other.in4.sin_addr.s_addr);
+ if (sa.sa_family == AF_INET6)
+ return (in6.sin6_port == other.in6.sin6_port) && !memcmp(in6.sin6_addr.s6_addr, other.in6.sin6_addr.s6_addr, 16);
+ return !memcmp(this, &other, sizeof(*this));
}
-bool InspSocket::Timeout(time_t current)
+static void sa2cidr(irc::sockets::cidr_mask& cidr, const irc::sockets::sockaddrs& sa, int range)
{
- if (((this->state == I_RESOLVING) || (this->state == I_CONNECTING)) && (current > timeout_end))
+ const unsigned char* base;
+ unsigned char target_byte;
+ cidr.type = sa.sa.sa_family;
+
+ memset(cidr.bits, 0, sizeof(cidr.bits));
+
+ if (cidr.type == AF_INET)
{
- 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;
- return true;
+ target_byte = sizeof(sa.in4.sin_addr);
+ base = (unsigned char*)&sa.in4.sin_addr;
+ if (range > 32)
+ range = 32;
+ }
+ else if (cidr.type == AF_INET6)
+ {
+ target_byte = sizeof(sa.in6.sin6_addr);
+ base = (unsigned char*)&sa.in6.sin6_addr;
+ if (range > 128)
+ range = 128;
+ }
+ else
+ {
+ cidr.length = 0;
+ return;
}
- return this->FlushWriteBuffer();
+ cidr.length = range;
+ unsigned int border = range / 8;
+ unsigned int bitmask = (0xFF00 >> (range & 7)) & 0xFF;
+ for(unsigned int i=0; i < target_byte; i++)
+ {
+ if (i < border)
+ cidr.bits[i] = base[i];
+ else if (i == border)
+ cidr.bits[i] = base[i] & bitmask;
+ else
+ return;
+ }
+}
+
+irc::sockets::cidr_mask::cidr_mask(const irc::sockets::sockaddrs& sa, int range)
+{
+ sa2cidr(*this, sa, range);
}
-bool InspSocket::Poll()
+irc::sockets::cidr_mask::cidr_mask(const std::string& mask)
{
- int incoming = -1;
- bool n = true;
+ std::string::size_type bits_chars = mask.rfind('/');
+ irc::sockets::sockaddrs sa;
- switch (this->state)
+ if (bits_chars == std::string::npos)
{
- 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;
+ irc::sockets::aptosa(mask, 0, sa);
+ sa2cidr(*this, sa, 128);
+ }
+ else
+ {
+ int range = ConvToInt(mask.substr(bits_chars + 1));
+ irc::sockets::aptosa(mask.substr(0, bits_chars), 0, sa);
+ sa2cidr(*this, sa, range);
}
- return true;
}
-void InspSocket::SetState(InspSocketState s)
+std::string irc::sockets::cidr_mask::str() const
{
- log(DEBUG,"Socket state change");
- this->state = s;
+ irc::sockets::sockaddrs sa;
+ sa.sa.sa_family = type;
+ unsigned char* base;
+ int len;
+ if (type == AF_INET)
+ {
+ base = (unsigned char*)&sa.in4.sin_addr;
+ len = 4;
+ }
+ else if (type == AF_INET6)
+ {
+ base = (unsigned char*)&sa.in6.sin6_addr;
+ len = 16;
+ }
+ else
+ return "";
+ memcpy(base, bits, len);
+ return sa.addr() + "/" + ConvToStr((int)length);
}
-InspSocketState InspSocket::GetState()
+bool irc::sockets::cidr_mask::operator==(const cidr_mask& other) const
{
- return this->state;
+ return type == other.type && length == other.length &&
+ 0 == memcmp(bits, other.bits, 16);
}
-int InspSocket::GetFd()
+bool irc::sockets::cidr_mask::operator<(const cidr_mask& other) const
{
- return this->fd;
+ if (type != other.type)
+ return type < other.type;
+ if (length != other.length)
+ return length < other.length;
+ return memcmp(bits, other.bits, 16) < 0;
}
-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()
+bool irc::sockets::cidr_mask::match(const irc::sockets::sockaddrs& addr) const
{
- this->Close();
+ if (addr.sa.sa_family != type)
+ return false;
+ irc::sockets::cidr_mask tmp(addr, length);
+ return tmp == *this;
}
projects / user / henk / code / inspircd.git / blobdiff