]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/socket.cpp
Merge pull request #971 from SaberUK/master+numeric-xline
[user/henk/code/inspircd.git] / src / socket.cpp
index 049d3a2379b6d81e91bb387e94f9d52a824a9574..17f13bb8a22c22a47fc7e752a30b406b39bcce41 100644 (file)
@@ -1,70 +1,27 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   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 program is free but copyrighted software; see
- *            the file COPYING for details.
+ * 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.
  *
- * ---------------------------------------------------
- */
-
-#include "inspircd.h"
-#include "socket.h"
-#include "socketengine.h"
-using irc::sockets::sockaddrs;
-
-/** 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'.
+ * 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/>.
  */
-bool InspIRCd::BindSocket(int sockfd, int port, const char* addr, bool dolisten)
-{
-       sockaddrs servaddr;
-       int ret;
-
-       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;
 
-       ret = SE->Bind(sockfd, 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;
-               }
-       }
-}
+#include "inspircd.h"
 
 int InspIRCd::BindPorts(FailedPortList &failed_ports)
 {
@@ -79,21 +36,25 @@ int InspIRCd::BindPorts(FailedPortList &failed_ports)
                std::string Addr = tag->getString("address");
 
                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.");
+                       this->Logs->Log("SOCKET", LOG_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()))
                {
                        irc::sockets::sockaddrs bindspec;
-                       irc::sockets::aptosa(Addr, portno, bindspec);
-                       std::string bind_readable = irc::sockets::satouser(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
+                                       (*n)->ResetIOHookProvider();
+
                                        skip = true;
                                        old_ports.erase(n);
                                        break;
@@ -101,7 +62,8 @@ int InspIRCd::BindPorts(FailedPortList &failed_ports)
                        }
                        if (!skip)
                        {
-                               ListenSocket *ll = new ListenSocket(tag, Addr, portno);
+                               ListenSocket* ll = new ListenSocket(tag, bindspec);
+
                                if (ll->GetFd() > -1)
                                {
                                        bound++;
@@ -123,11 +85,11 @@ int InspIRCd::BindPorts(FailedPortList &failed_ports)
                        n++;
                if (n == ports.end())
                {
-                       this->Logs->Log("SOCKET",ERROR,"Port bindings slipped out of vector, aborting close!");
+                       this->Logs->Log("SOCKET", LOG_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.",
+               this->Logs->Log("SOCKET", LOG_DEFAULT, "Port binding %s was removed from the config file, closing.",
                        (**n).bind_desc.c_str());
                delete *n;
 
@@ -143,13 +105,16 @@ bool irc::sockets::aptosa(const std::string& addr, int port, irc::sockets::socka
        memset(&sa, 0, sizeof(sa));
        if (addr.empty() || addr.c_str()[0] == '*')
        {
-#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
+               if (ServerInstance->Config->WildcardIPv6)
+               {
+                       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);
+               }
                return true;
        }
        else if (inet_pton(AF_INET, addr.c_str(), &sa.in4.sin_addr) > 0)
@@ -201,46 +166,24 @@ bool irc::sockets::satoap(const irc::sockets::sockaddrs& sa, std::string& addr,
        return !addr.empty();
 }
 
-static const char all_zero[16] = {0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0 };
-
 std::string irc::sockets::sockaddrs::str() const
 {
-       char buffer[MAXBUF];
        if (sa.sa_family == AF_INET)
        {
-#ifndef IPV6
-               if (in4.sin_addr.s_addr == 0)
-               {
-                       sprintf(buffer, "*:%u", ntohs(in4.sin_port));
-               }
-               else
-#endif
-               {
-                       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));
-               }
+               char ipaddr[INET_ADDRSTRLEN];
+               inet_ntop(AF_INET, &in4.sin_addr, ipaddr, sizeof(ipaddr));
+               return InspIRCd::Format("%s:%u", ipaddr, ntohs(in4.sin_port));
        }
-       else if (sa.sa_family == AF_INET6)
+
+       if (sa.sa_family == AF_INET6)
        {
-#ifdef IPV6
-               if (!memcmp(all_zero, &in6.sin6_addr, 16))
-               {
-                       sprintf(buffer, "*:%u", ntohs(in6.sin6_port));
-               }
-               else
-#endif
-               {
-                       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));
-               }
+               char ipaddr[INET6_ADDRSTRLEN];
+               inet_ntop(AF_INET6, &in6.sin6_addr, ipaddr, sizeof(ipaddr));
+               return InspIRCd::Format("[%s]:%u", ipaddr, ntohs(in6.sin6_port));
        }
-       else
-               return "<unknown>";
-       return std::string(buffer);
+
+       // This should never happen.
+       return "<unknown>";
 }
 
 int irc::sockets::sockaddrs::sa_size() const
@@ -252,38 +195,55 @@ int irc::sockets::sockaddrs::sa_size() const
        return 0;
 }
 
+bool irc::sockets::sockaddrs::operator==(const irc::sockets::sockaddrs& other) const
+{
+       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));
+}
+
 static void sa2cidr(irc::sockets::cidr_mask& cidr, const irc::sockets::sockaddrs& sa, int range)
 {
        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)
        {
+               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
        {
-               base = (unsigned char*)"";
-               range = 0;
+               cidr.length = 0;
+               return;
        }
        cidr.length = range;
        unsigned int border = range / 8;
        unsigned int bitmask = (0xFF00 >> (range & 7)) & 0xFF;
-       for(unsigned int i=0; i < 16; i++)
+       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
-                       cidr.bits[i] = 0;
+                       return;
        }
 }
 
@@ -304,7 +264,7 @@ irc::sockets::cidr_mask::cidr_mask(const std::string& mask)
        }
        else
        {
-               int range = atoi(mask.substr(bits_chars + 1).c_str());
+               int range = ConvToInt(mask.substr(bits_chars + 1));
                irc::sockets::aptosa(mask.substr(0, bits_chars), 0, sa);
                sa2cidr(*this, sa, range);
        }
@@ -329,7 +289,7 @@ std::string irc::sockets::cidr_mask::str() const
        else
                return "";
        memcpy(base, bits, len);
-       return sa.addr() + "/" + ConvToStr(length);
+       return sa.addr() + "/" + ConvToStr((int)length);
 }
 
 bool irc::sockets::cidr_mask::operator==(const cidr_mask& other) const
@@ -340,8 +300,11 @@ bool irc::sockets::cidr_mask::operator==(const cidr_mask& other) const
 
 bool irc::sockets::cidr_mask::operator<(const cidr_mask& other) const
 {
-       return type < other.type || length < other.length ||
-               memcmp(bits, other.bits, 16) < 0;
+       if (type != other.type)
+               return type < other.type;
+       if (length != other.length)
+               return length < other.length;
+       return memcmp(bits, other.bits, 16) < 0;
 }
 
 bool irc::sockets::cidr_mask::match(const irc::sockets::sockaddrs& addr) const
@@ -351,4 +314,3 @@ bool irc::sockets::cidr_mask::match(const irc::sockets::sockaddrs& addr) const
        irc::sockets::cidr_mask tmp(addr, length);
        return tmp == *this;
 }
-