* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * InspIRCd: (C) 2002-2008 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* ---------------------------------------------------
*/
-#include <string>
-#include "configreader.h"
-#include "socket.h"
+/* $Core: libIRCDsocket */
+
#include "inspircd.h"
+#include "socket.h"
#include "socketengine.h"
#include "wildcard.h"
using namespace irc::sockets;
+/* Private static member data must be initialized in this manner */
+unsigned int ListenSocket::socketcount = 0;
+sockaddr* ListenSocket::sock_us = NULL;
+sockaddr* ListenSocket::client = NULL;
+sockaddr* ListenSocket::raddr = NULL;
+
/* Used when comparing CIDR masks for the modulus bits left over.
* A lot of ircd's seem to do this:
* ((-1) << (8 - (mask % 8)))
* But imho, it sucks in comparison to a nice neat lookup table.
*/
-const char inverted_bits[8] = { 0x00, /* 00000000 - 0 bits - never actually used */
+const unsigned char inverted_bits[8] = { 0x00, /* 00000000 - 0 bits - never actually used */
0x80, /* 10000000 - 1 bits */
0xC0, /* 11000000 - 2 bits */
0xE0, /* 11100000 - 3 bits */
};
-ListenSocket::ListenSocket(InspIRCd* Instance, int sockfd, insp_sockaddr client, insp_sockaddr server, int port, char* addr) : ServerInstance(Instance), desc("plaintext")
+ListenSocket::ListenSocket(InspIRCd* Instance, int port, char* addr) : ServerInstance(Instance), desc("plaintext"), bind_addr(addr), bind_port(port)
{
- this->SetFd(sockfd);
- Instance->Log(DEBUG,"CRAP");
- if (!Instance->BindSocket(this->fd,client,server,port,addr))
- this->fd = -1;
+ this->SetFd(OpenTCPSocket(addr));
+ if (this->GetFd() > -1)
+ {
+ if (!Instance->BindSocket(this->fd,port,addr))
+ this->fd = -1;
+#ifdef IPV6
+ if ((!*addr) || (strchr(addr,':')))
+ this->family = AF_INET6;
+ else
+#endif
+ this->family = AF_INET;
+ Instance->SE->AddFd(this);
+ }
+ /* Saves needless allocations */
+ if (socketcount == 0)
+ {
+ /* All instances of ListenSocket share these, so reference count it */
+ sock_us = new sockaddr[2];
+ client = new sockaddr[2];
+ raddr = new sockaddr[2];
+ }
+ socketcount++;
}
ListenSocket::~ListenSocket()
{
if (this->GetFd() > -1)
{
- shutdown(this->fd, 2);
- close(this->fd);
+ ServerInstance->SE->DelFd(this);
+ ServerInstance->Logs->Log("SOCKET", DEBUG,"Shut down listener on fd %d", this->fd);
+ if (ServerInstance->SE->Shutdown(this, 2) || ServerInstance->SE->Close(this))
+ ServerInstance->Logs->Log("SOCKET", DEBUG,"Failed to cancel listener: %s", strerror(errno));
this->fd = -1;
}
+ socketcount--;
+ if (socketcount == 0)
+ {
+ delete[] sock_us;
+ delete[] client;
+ delete[] raddr;
+ }
}
-void ListenSocket::HandleEvent(EventType et, int errornum)
+void ListenSocket::HandleEvent(EventType, int)
{
- insp_sockaddr sock_us; // our port number
- socklen_t uslen; // length of our port number
- insp_sockaddr client;
- socklen_t length;
+ socklen_t uslen, length; // length of our port number
int incomingSockfd, in_port;
- uslen = sizeof(sock_us);
- length = sizeof(client);
- incomingSockfd = accept (this->GetFd(),(struct sockaddr*)&client, &length);
-
- if ((incomingSockfd > -1) && (!getsockname(incomingSockfd, (sockaddr*)&sock_us, &uslen)))
- {
+
#ifdef IPV6
- in_port = ntohs(sock_us.sin6_port);
-#else
- in_port = ntohs(sock_us.sin_port);
+ if (this->family == AF_INET6)
+ {
+ uslen = sizeof(sockaddr_in6);
+ length = sizeof(sockaddr_in6);
+ }
+ else
#endif
- NonBlocking(incomingSockfd);
- if (ServerInstance->Config->GetIOHook(in_port))
- {
- try
- {
+ {
+ uslen = sizeof(sockaddr_in);
+ length = sizeof(sockaddr_in);
+ }
+
+ incomingSockfd = ServerInstance->SE->Accept(this, (sockaddr*)client, &length);
+
+ if ((incomingSockfd > -1) && (!ServerInstance->SE->GetSockName(this, sock_us, &uslen)))
+ {
+ char buf[MAXBUF];
+ char target[MAXBUF];
+
+ *target = *buf = '\0';
+
#ifdef IPV6
- ServerInstance->Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, insp_ntoa(client.sin6_addr), in_port);
-#else
- ServerInstance->Config->GetIOHook(in_port)->OnRawSocketAccept(incomingSockfd, insp_ntoa(client.sin_addr), in_port);
+ if (this->family == AF_INET6)
+ {
+ in_port = ntohs(((sockaddr_in6*)sock_us)->sin6_port);
+ inet_ntop(AF_INET6, &((const sockaddr_in6*)client)->sin6_addr, buf, sizeof(buf));
+ socklen_t raddrsz = sizeof(sockaddr_in6);
+ if (getpeername(incomingSockfd, (sockaddr*) raddr, &raddrsz) == 0)
+ inet_ntop(AF_INET6, &((const sockaddr_in6*)raddr)->sin6_addr, target, sizeof(target));
+ else
+ ServerInstance->Logs->Log("SOCKET", DEBUG, "Can't get peername: %s", strerror(errno));
+ }
+ else
#endif
- }
- catch (CoreException& modexcept)
- {
- ServerInstance->Log(DEBUG,"%s threw an exception: %s", modexcept.GetSource(), modexcept.GetReason());
- }
+ {
+ inet_ntop(AF_INET, &((const sockaddr_in*)client)->sin_addr, buf, sizeof(buf));
+ in_port = ntohs(((sockaddr_in*)sock_us)->sin_port);
+ socklen_t raddrsz = sizeof(sockaddr_in);
+ if (getpeername(incomingSockfd, (sockaddr*) raddr, &raddrsz) == 0)
+ inet_ntop(AF_INET, &((const sockaddr_in*)raddr)->sin_addr, target, sizeof(target));
+ else
+ ServerInstance->Logs->Log("SOCKET", DEBUG, "Can't get peername: %s", strerror(errno));
+
}
+
+ ServerInstance->SE->NonBlocking(incomingSockfd);
+
ServerInstance->stats->statsAccept++;
-#ifdef IPV6
- userrec::AddClient(ServerInstance, incomingSockfd, in_port, false, client.sin6_addr);
-#else
- userrec::AddClient(ServerInstance, incomingSockfd, in_port, false, client.sin_addr);
-#endif
+ ServerInstance->Users->AddClient(ServerInstance, incomingSockfd, in_port, false, this->family, client, target);
}
else
{
- shutdown(incomingSockfd,2);
- close(incomingSockfd);
+ ServerInstance->SE->Shutdown(incomingSockfd, 2);
+ ServerInstance->SE->Close(incomingSockfd);
ServerInstance->stats->statsRefused++;
}
}
/* Match raw bytes using CIDR bit matching, used by higher level MatchCIDR() */
bool irc::sockets::MatchCIDRBits(unsigned char* address, unsigned char* mask, unsigned int mask_bits)
{
- unsigned int modulus = mask_bits % 8; /* Number of whole bytes in the mask */
- unsigned int divisor = mask_bits / 8; /* Remaining bits in the mask after whole bytes are dealt with */
+ unsigned int divisor = mask_bits / 8; /* Number of whole bytes in the mask */
+ unsigned int modulus = mask_bits % 8; /* Remaining bits in the mask after whole bytes are dealt with */
- /* First compare the whole bytes, if they dont match, return false */
- if (memcmp(address, mask, divisor))
- return false;
-
- /* Now if there are any remainder bits, we compare them with logic AND */
+ /* First (this is faster) compare the odd bits with logic ops */
if (modulus)
if ((address[divisor] & inverted_bits[modulus]) != (mask[divisor] & inverted_bits[modulus]))
/* If they dont match, return false */
return false;
+ /* Secondly (this is slower) compare the whole bytes */
+ if (memcmp(address, mask, divisor))
+ return false;
+
/* The address matches the mask, to mask_bits bits of mask */
return true;
}
return MatchCIDRBits(addr_raw, mask_raw, bits);
}
-void irc::sockets::Blocking(int s)
-{
- int flags = fcntl(s, F_GETFL, 0);
- fcntl(s, F_SETFL, flags ^ O_NONBLOCK);
-}
-
-void irc::sockets::NonBlocking(int s)
-{
- int flags = fcntl(s, F_GETFL, 0);
- fcntl(s, F_SETFL, flags | O_NONBLOCK);
-}
-
/** 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, insp_sockaddr clientn, insp_sockaddr servern, int port, char* addr)
+bool InspIRCd::BindSocket(int sockfd, int port, const char* addr, bool dolisten)
{
- sockaddr* server = new sockaddr();
- memset(server,0,sizeof(server));
+ /* 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);
- if (*addr == '*')
- *addr = 0;
+ int ret, size;
- Log(DEBUG,"NEW CRAP HERE");
-
- /*if ((*addr) && (insp_aton(addr,&addy) < 1))
- return false;*/
+ if (*addr == '*')
+ addr = "";
#ifdef IPV6
if (*addr)
{
- printf("Address %s not empty\n", addr);
/* There is an address here. Is it ipv6? */
if (strchr(addr,':'))
{
- printf("Address %s is ipv6\n", addr);
/* Yes it is */
in6_addr addy;
- inet_pton(AF_INET6, addr, &addy);
+ if (inet_pton(AF_INET6, addr, &addy) < 1)
+ {
+ delete[] servaddr;
+ return false;
+ }
- ((sockaddr_in6*)server)->sin6_family = AF_INET6;
- memcpy(&((sockaddr_in6*)server)->sin6_addr, &addy, sizeof(in6_addr));
- ((sockaddr_in6*)server)->sin6_port = htons(port);
+ ((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 */
- printf("Address %s is ipv4\n", addr);
in_addr addy;
- inet_pton(AF_INET, addr, &addy);
+ if (inet_pton(AF_INET, addr, &addy) < 1)
+ {
+ delete[] servaddr;
+ return false;
+ }
- ((sockaddr_in*)server)->sin_family = AF_INET;
- ((sockaddr_in*)server)->sin_addr = addy;
- ((sockaddr_in*)server)->sin_port = htons(port);
+ ((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
{
- printf("Address empty\n");
- /* Theres no address here, default to ipv6 bind to all */
- memset(&((sockaddr_in6*)server)->sin6_addr, 0, sizeof(in6_addr));
- ((sockaddr_in6*)server)->sin6_port = htons(port);
+ 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*)server)->sin_family = AF_INET;
+ ((sockaddr_in*)servaddr)->sin_family = AF_INET;
if (*addr)
{
/* There is an address here. */
in_addr addy;
- inet_pton(AF_INET, addr, &addy);
-
- ((sockaddr_in*)server)->sin_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*)server)->sin_addr.s_addr = htonl(INADDR_ANY);
+ ((sockaddr_in*)servaddr)->sin_addr.s_addr = htonl(INADDR_ANY);
}
/* Bind ipv4 port number */
- ((sockaddr_in*)server)->sin_port = htons(port);
+ ((sockaddr_in*)servaddr)->sin_port = htons(port);
+ size = sizeof(sockaddr_in);
#endif
- int ret = bind(sockfd, server, sizeof(server));
-
- delete server;
+ ret = SE->Bind(sockfd, servaddr, size);
+ delete[] servaddr;
if (ret < 0)
{
}
else
{
- if (listen(sockfd, Config->MaxConn) == -1)
+ if (dolisten)
{
- this->Log(DEFAULT,"ERROR in listen(): %s",strerror(errno));
- 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
{
- NonBlocking(sockfd);
+ 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()
+int irc::sockets::OpenTCPSocket(char* addr, int socktype)
{
int sockfd;
int on = 1;
- struct linger linger = { 0 };
-
- if ((sockfd = socket (AF_FAMILY, SOCK_STREAM, 0)) < 0)
+ 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
{
- printf("SOCKET FAIL: %s\n", strerror(errno));
return ERROR;
}
else
{
- setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+ 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, &linger,sizeof(linger));
+ setsockopt(sockfd, SOL_SOCKET, SO_LINGER, (char*)&linger,sizeof(linger));
return (sockfd);
}
}
-/* XXX: Probably belongs in class InspIRCd */
-bool InspIRCd::HasPort(int port, char* addr)
-{
- for (unsigned long count = 0; count < stats->BoundPortCount; count++)
- {
- if ((port == Config->ports[count]) && (!strcasecmp(Config->addrs[count],addr)))
- {
- return true;
- }
- }
- return false;
-}
-
-/* XXX: Probably belongs in class InspIRCd */
-int InspIRCd::BindPorts(bool bail, int &ports_found, FailedPortList &failed_ports)
+int InspIRCd::BindPorts(bool, int &ports_found, FailedPortList &failed_ports)
{
- Log(DEBUG,"BINDING PORTS");
char configToken[MAXBUF], Addr[MAXBUF], Type[MAXBUF];
- insp_sockaddr client, server;
- int clientportcount = 0;
- int BoundPortCount = 0;
+ int bound = 0;
+ bool started_with_nothing = (Config->ports.size() == 0);
+ std::vector<std::pair<std::string, int> > old_ports;
- ports_found = 0;
-
- int InitialPortCount = stats->BoundPortCount;
+ /* XXX: Make a copy of the old ip/port pairs here */
+ for (std::vector<ListenSocket*>::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++)
{
- Log(DEBUG,"FOUND PORT");
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);
- long portno = -1;
+ int portno = -1;
while ((portno = portrange.GetToken()))
{
- if (!HasPort(portno, Addr))
- {
- ports_found++;
- Config->ports[clientportcount+InitialPortCount] = portno;
- if (*Addr == '*')
- *Addr = 0;
-
- strlcpy(Config->addrs[clientportcount+InitialPortCount],Addr,256);
- clientportcount++;
- }
- }
- }
+ if (*Addr == '*')
+ *Addr = 0;
- if (!bail)
- {
- int PortCount = clientportcount;
- if (PortCount)
- {
- BoundPortCount = stats->BoundPortCount;
- for (int count = InitialPortCount; count < InitialPortCount + PortCount; count++)
+ bool skip = false;
+ for (std::vector<ListenSocket*>::iterator n = Config->ports.begin(); n != Config->ports.end(); ++n)
{
- int fd = OpenTCPSocket();
- if (fd == ERROR)
+ if (((*n)->GetIP() == Addr) && ((*n)->GetPort() == portno))
{
- failed_ports.push_back(std::make_pair(Config->addrs[count],Config->ports[count]));
- Log(DEBUG,"SOCKET FAIL");
- }
- else
- {
- Log(DEBUG,"BIND");
- Config->openSockfd[BoundPortCount] = new ListenSocket(this,fd,client,server,Config->ports[count],Config->addrs[count]);
- if (Config->openSockfd[BoundPortCount]->GetFd() > -1)
+ 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 (!SE->AddFd(Config->openSockfd[BoundPortCount]))
+ if ((k->first == Addr) && (k->second == portno))
{
- this->Log(DEFAULT,"ERK! Failed to add listening port to socket engine!");
- shutdown(Config->openSockfd[BoundPortCount]->GetFd(),2);
- close(Config->openSockfd[BoundPortCount]->GetFd());
- delete Config->openSockfd[BoundPortCount];
- failed_ports.push_back(std::make_pair(Config->addrs[count],Config->ports[count]));
+ old_ports.erase(k);
+ break;
}
- else
- BoundPortCount++;
}
}
}
- return InitialPortCount + BoundPortCount;
+ if (!skip)
+ {
+ ListenSocket* ll = new ListenSocket(this, portno, Addr);
+ if (ll->GetFd() > -1)
+ {
+ bound++;
+ Config->ports.push_back(ll);
+ }
+ else
+ {
+ failed_ports.push_back(std::make_pair(Addr, portno));
+ }
+ ports_found++;
+ }
}
- return InitialPortCount;
}
}
- int PortCount = clientportcount;
-
- for (int count = 0; count < PortCount; count++)
+ /* XXX: Here, anything left in our copy list, close as removed */
+ if (!started_with_nothing)
{
- int fd = OpenTCPSocket();
- if (fd == ERROR)
+ for (size_t k = 0; k < old_ports.size(); ++k)
{
- Log(DEBUG,"SOCKET FAIL");
- failed_ports.push_back(std::make_pair(Config->addrs[count],Config->ports[count]));
- }
- else
- {
- Log(DEBUG,"BIND");
- Config->openSockfd[BoundPortCount] = new ListenSocket(this,fd,client,server,Config->ports[count],Config->addrs[count]);
- if (Config->openSockfd[BoundPortCount]->GetFd() > -1)
+ for (std::vector<ListenSocket*>::iterator n = Config->ports.begin(); n != Config->ports.end(); ++n)
{
- BoundPortCount++;
+ 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;
+ }
}
- else
- failed_ports.push_back(std::make_pair(Config->addrs[count],Config->ports[count]));
}
}
- return BoundPortCount;
+
+ return bound;
}
const char* irc::sockets::insp_ntoa(insp_inaddr n)
projects / user / henk / code / inspircd.git / blobdiff