* | 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
- * the file COPYING for details.
+ * the file COPYING for details.
*
* ---------------------------------------------------
*/
-#include <string>
-#include <vector>
+#include "inspircd.h"
#include <gnutls/gnutls.h>
#include <gnutls/x509.h>
#include "users.h"
#include "channels.h"
#include "modules.h"
-
#include "socket.h"
#include "hashcomp.h"
-#include "inspircd.h"
-
#include "transport.h"
+#include "m_cap.h"
+
+#ifdef WINDOWS
+#pragma comment(lib, "libgnutls-13.lib")
+#undef MAX_DESCRIPTORS
+#define MAX_DESCRIPTORS 10000
+#endif
/* $ModDesc: Provides SSL support for clients */
/* $CompileFlags: exec("libgnutls-config --cflags") */
/* $LinkerFlags: rpath("libgnutls-config --libs") exec("libgnutls-config --libs") */
/* $ModDep: transport.h */
-
+/* $CopyInstall: conf/key.pem $(CONPATH) */
+/* $CopyInstall: conf/cert.pem $(CONPATH) */
enum issl_status { ISSL_NONE, ISSL_HANDSHAKING_READ, ISSL_HANDSHAKING_WRITE, ISSL_HANDSHAKEN, ISSL_CLOSING, ISSL_CLOSED };
int fd;
};
+class CommandStartTLS : public Command
+{
+ Module* Caller;
+ public:
+ /* Command 'dalinfo', takes no parameters and needs no special modes */
+ CommandStartTLS (InspIRCd* Instance, Module* mod) : Command(Instance,"STARTTLS", 0, 0, true), Caller(mod)
+ {
+ this->source = "m_ssl_gnutls.so";
+ }
+
+ CmdResult Handle (const char* const* parameters, int pcnt, User *user)
+ {
+ if (!user->GetExt("tls"))
+ return CMD_FAILURE;
+
+ user->io = Caller;
+ Caller->OnRawSocketAccept(user->GetFd(), user->GetIPString(), ServerInstance->Config->ports[i]->GetPort());
+
+ return CMD_FAILURE;
+ }
+};
+
class ModuleSSLGnuTLS : public Module
{
std::string certfile;
std::string cafile;
std::string crlfile;
+ std::string sslports;
int dh_bits;
+ int clientactive;
+
+ CommandStartTLS* starttls;
+
public:
ModuleSSLGnuTLS(InspIRCd* Me)
- : Module::Module(Me)
+ : Module(Me)
{
- ServerInstance->PublishInterface("InspSocketHook", this);
+ ServerInstance->Modules->PublishInterface("BufferedSocketHook", this);
// Not rehashable...because I cba to reduce all the sizes of existing buffers.
inbufsize = ServerInstance->Config->NetBufferSize;
gnutls_global_init(); // This must be called once in the program
if(gnutls_certificate_allocate_credentials(&x509_cred) != 0)
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to allocate certificate credentials");
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to allocate certificate credentials");
// Guessing return meaning
if(gnutls_dh_params_init(&dh_params) < 0)
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters");
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to initialise DH parameters");
// Needs the flag as it ignores a plain /rehash
OnRehash(NULL,"ssl");
// Void return, guess we assume success
gnutls_certificate_set_dh_params(x509_cred, dh_params);
+ Implementation eventlist[] = { I_On005Numeric, I_OnRawSocketConnect, I_OnRawSocketAccept, I_OnRawSocketClose, I_OnRawSocketRead, I_OnRawSocketWrite, I_OnCleanup,
+ I_OnBufferFlushed, I_OnRequest, I_OnSyncUserMetaData, I_OnDecodeMetaData, I_OnUnloadModule, I_OnRehash, I_OnWhois, I_OnPostConnect, I_OnEvent, I_OnHookUserIO };
+ ServerInstance->Modules->Attach(eventlist, this, 17);
+
+ starttls = new CommandStartTLS(ServerInstance, this);
+ ServerInstance->AddCommand(starttls);
}
- virtual void OnRehash(userrec* user, const std::string ¶m)
+ virtual void OnRehash(User* user, const std::string ¶m)
{
- if(param != "ssl")
- return;
-
Conf = new ConfigReader(ServerInstance);
for(unsigned int i = 0; i < listenports.size(); i++)
}
listenports.clear();
+ clientactive = 0;
+ sslports.clear();
- for(int i = 0; i < Conf->Enumerate("bind"); i++)
+ for(int index = 0; index < Conf->Enumerate("bind"); index++)
{
// For each <bind> tag
- if(((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "gnutls"))
+ std::string x = Conf->ReadValue("bind", "type", index);
+ if(((x.empty()) || (x == "clients")) && (Conf->ReadValue("bind", "ssl", index) == "gnutls"))
{
// Get the port we're meant to be listening on with SSL
- std::string port = Conf->ReadValue("bind", "port", i);
+ std::string port = Conf->ReadValue("bind", "port", index);
irc::portparser portrange(port, false);
long portno = -1;
while ((portno = portrange.GetToken()))
{
- if (ServerInstance->Config->AddIOHook(portno, this))
+ clientactive++;
+ try
{
- listenports.push_back(portno);
- for (unsigned int i = 0; i < ServerInstance->stats->BoundPortCount; i++)
- if (ServerInstance->Config->ports[i] == portno)
- ServerInstance->Config->openSockfd[i]->SetDescription("ssl");
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", portno);
+ if (ServerInstance->Config->AddIOHook(portno, this))
+ {
+ listenports.push_back(portno);
+ for (size_t i = 0; i < ServerInstance->Config->ports.size(); i++)
+ if (ServerInstance->Config->ports[i]->GetPort() == portno)
+ ServerInstance->Config->ports[i]->SetDescription("ssl");
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", portno);
+ sslports.append("*:").append(ConvToStr(portno)).append(";");
+ }
+ else
+ {
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", portno);
+ }
}
- else
+ catch (ModuleException &e)
{
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", portno);
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d: %s. Maybe it's already hooked by the same port on a different IP, or you have an other SSL or similar module loaded?", portno, e.GetReason());
}
}
}
}
- std::string confdir(CONFIG_FILE);
+ if(param != "ssl")
+ {
+ delete Conf;
+ return;
+ }
+
+ std::string confdir(ServerInstance->ConfigFileName);
// +1 so we the path ends with a /
confdir = confdir.substr(0, confdir.find_last_of('/') + 1);
dh_bits = Conf->ReadInteger("gnutls", "dhbits", 0, false);
// Set all the default values needed.
- if(cafile == "")
+ if (cafile.empty())
cafile = "ca.pem";
- if(crlfile == "")
+ if (crlfile.empty())
crlfile = "crl.pem";
- if(certfile == "")
+ if (certfile.empty())
certfile = "cert.pem";
- if(keyfile == "")
+ if (keyfile.empty())
keyfile = "key.pem";
if((dh_bits != 768) && (dh_bits != 1024) && (dh_bits != 2048) && (dh_bits != 3072) && (dh_bits != 4096))
int ret;
if((ret =gnutls_certificate_set_x509_trust_file(x509_cred, cafile.c_str(), GNUTLS_X509_FMT_PEM)) < 0)
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 trust file '%s': %s", cafile.c_str(), gnutls_strerror(ret));
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 trust file '%s': %s", cafile.c_str(), gnutls_strerror(ret));
if((ret = gnutls_certificate_set_x509_crl_file (x509_cred, crlfile.c_str(), GNUTLS_X509_FMT_PEM)) < 0)
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 CRL file '%s': %s", crlfile.c_str(), gnutls_strerror(ret));
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 CRL file '%s': %s", crlfile.c_str(), gnutls_strerror(ret));
- // Guessing on the return value of this, manual doesn't say :|
if((ret = gnutls_certificate_set_x509_key_file (x509_cred, certfile.c_str(), keyfile.c_str(), GNUTLS_X509_FMT_PEM)) < 0)
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to set X.509 certificate and key files '%s' and '%s': %s", certfile.c_str(), keyfile.c_str(), gnutls_strerror(ret));
+ {
+ // If this fails, no SSL port will work. At all. So, do the smart thing - throw a ModuleException
+ throw ModuleException("Unable to load GnuTLS server certificate: " + std::string(gnutls_strerror(ret)));
+ }
// This may be on a large (once a day or week) timer eventually.
GenerateDHParams();
- DELETE(Conf);
+ delete Conf;
}
void GenerateDHParams()
int ret;
if((ret = gnutls_dh_params_generate2(dh_params, dh_bits)) < 0)
- ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits): %s", dh_bits, gnutls_strerror(ret));
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to generate DH parameters (%d bits): %s", dh_bits, gnutls_strerror(ret));
}
virtual ~ModuleSSLGnuTLS()
{
if(target_type == TYPE_USER)
{
- userrec* user = (userrec*)item;
+ User* user = (User*)item;
if(user->GetExt("ssl", dummy) && isin(user->GetPort(), listenports))
{
// User is using SSL, they're a local user, and they're using one of *our* SSL ports.
// Potentially there could be multiple SSL modules loaded at once on different ports.
- ServerInstance->GlobalCulls.AddItem(user, "SSL module unloading");
+ User::QuitUser(ServerInstance, user, "SSL module unloading");
}
if (user->GetExt("ssl_cert", dummy) && isin(user->GetPort(), listenports))
{
delete tofree;
user->Shrink("ssl_cert");
}
+
+ user->io = NULL;
}
}
for(unsigned int i = 0; i < listenports.size(); i++)
{
ServerInstance->Config->DelIOHook(listenports[i]);
- for (unsigned int j = 0; j < ServerInstance->stats->BoundPortCount; j++)
- if (ServerInstance->Config->ports[j] == listenports[i])
- if (ServerInstance->Config->openSockfd[j])
- ServerInstance->Config->openSockfd[j]->SetDescription("plaintext");
+ for (size_t j = 0; j < ServerInstance->Config->ports.size(); j++)
+ if (ServerInstance->Config->ports[j]->GetPort() == listenports[i])
+ ServerInstance->Config->ports[j]->SetDescription("plaintext");
}
}
}
virtual Version GetVersion()
{
- return Version(1, 1, 0, 0, VF_VENDOR, API_VERSION);
+ return Version(1, 2, 0, 0, VF_VENDOR, API_VERSION);
}
- void Implements(char* List)
+
+ virtual void On005Numeric(std::string &output)
+ {
+ output.append(" SSL=" + sslports);
+ }
+
+ virtual void OnHookUserIO(User* user)
{
- List[I_OnRawSocketConnect] = List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
- List[I_OnRequest] = List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnPostConnect] = 1;
+ if (!user->io && isin(user->GetPort(), listenports))
+ {
+ /* Hook the user with our module */
+ user->io = this;
+ }
}
- virtual char* OnRequest(Request* request)
+ virtual const char* OnRequest(Request* request)
{
ISHRequest* ISR = (ISHRequest*)request;
if (strcmp("IS_NAME", request->GetId()) == 0)
}
else if (strcmp("IS_HOOK", request->GetId()) == 0)
{
- char* ret = "OK";
+ const char* ret = "OK";
try
{
- ret = ServerInstance->Config->AddIOHook((Module*)this, (InspSocket*)ISR->Sock) ? (char*)"OK" : NULL;
+ ret = ServerInstance->Config->AddIOHook((Module*)this, (BufferedSocket*)ISR->Sock) ? "OK" : NULL;
}
catch (ModuleException &e)
{
}
else if (strcmp("IS_UNHOOK", request->GetId()) == 0)
{
- return ServerInstance->Config->DelIOHook((InspSocket*)ISR->Sock) ? (char*)"OK" : NULL;
+ return ServerInstance->Config->DelIOHook((BufferedSocket*)ISR->Sock) ? "OK" : NULL;
}
else if (strcmp("IS_HSDONE", request->GetId()) == 0)
{
+ if (ISR->Sock->GetFd() < 0)
+ return "OK";
+
issl_session* session = &sessions[ISR->Sock->GetFd()];
- return (session->status == ISSL_HANDSHAKING_READ || session->status == ISSL_HANDSHAKING_WRITE) ? NULL : (char*)"OK";
+ return (session->status == ISSL_HANDSHAKING_READ || session->status == ISSL_HANDSHAKING_WRITE) ? NULL : "OK";
}
else if (strcmp("IS_ATTACH", request->GetId()) == 0)
{
- issl_session* session = &sessions[ISR->Sock->GetFd()];
- if (session)
+ if (ISR->Sock->GetFd() > -1)
{
- VerifyCertificate(session, (InspSocket*)ISR->Sock);
- return "OK";
+ issl_session* session = &sessions[ISR->Sock->GetFd()];
+ if (session->sess)
+ {
+ if ((Extensible*)ServerInstance->FindDescriptor(ISR->Sock->GetFd()) == (Extensible*)(ISR->Sock))
+ {
+ VerifyCertificate(session, (BufferedSocket*)ISR->Sock);
+ return "OK";
+ }
+ }
}
}
return NULL;
virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport)
{
+ /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return;
+
issl_session* session = &sessions[fd];
session->fd = fd;
gnutls_set_default_priority(session->sess); // Avoid calling all the priority functions, defaults are adequate.
gnutls_credentials_set(session->sess, GNUTLS_CRD_CERTIFICATE, x509_cred);
- gnutls_certificate_server_set_request(session->sess, GNUTLS_CERT_REQUEST); // Request client certificate if any.
gnutls_dh_set_prime_bits(session->sess, dh_bits);
/* This is an experimental change to avoid a warning on 64bit systems about casting between integer and pointer of different sizes
gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
+ gnutls_certificate_server_set_request(session->sess, GNUTLS_CERT_REQUEST); // Request client certificate if any.
+
Handshake(session);
}
virtual void OnRawSocketConnect(int fd)
{
+ /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return;
+
issl_session* session = &sessions[fd];
session->fd = fd;
gnutls_set_default_priority(session->sess); // Avoid calling all the priority functions, defaults are adequate.
gnutls_credentials_set(session->sess, GNUTLS_CRD_CERTIFICATE, x509_cred);
- //TODO: Request server cert here.
- //gnutls_certificate_request(session->sess, GNUTLS_CERT_REQUEST); // Request server certificate if any.
gnutls_dh_set_prime_bits(session->sess, dh_bits);
-
gnutls_transport_set_ptr(session->sess, (gnutls_transport_ptr_t) fd); // Give gnutls the fd for the socket.
Handshake(session);
virtual void OnRawSocketClose(int fd)
{
+ /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return;
+
CloseSession(&sessions[fd]);
EventHandler* user = ServerInstance->SE->GetRef(fd);
virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult)
{
+ /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
+ return 0;
+
issl_session* session = &sessions[fd];
if (!session->sess)
}
else if (session->status == ISSL_HANDSHAKING_WRITE)
{
+ errno = EAGAIN;
+ MakePollWrite(session);
return -1;
}
else if (ret < 0)
{
if (ret == GNUTLS_E_AGAIN || ret == GNUTLS_E_INTERRUPTED)
+ {
+ errno = EAGAIN;
return -1;
+ }
else
{
readresult = 0;
virtual int OnRawSocketWrite(int fd, const char* buffer, int count)
{
- if (!count)
+ /* Are there any possibilities of an out of range fd? Hope not, but lets be paranoid */
+ if ((fd < 0) || (fd > MAX_DESCRIPTORS))
return 0;
issl_session* session = &sessions[fd];
sendbuffer = session->outbuf.c_str();
count = session->outbuf.size();
- if(session->status == ISSL_HANDSHAKING_WRITE)
+ if (session->status == ISSL_HANDSHAKING_WRITE)
{
// The handshake isn't finished, try to finish it.
Handshake(session);
errno = EAGAIN;
- return 0;
+ return -1;
}
int ret = 0;
- if(session->status == ISSL_HANDSHAKEN)
+ if (session->status == ISSL_HANDSHAKEN)
{
ret = gnutls_record_send(session->sess, sendbuffer, count);
- if(ret == 0)
+ if (ret == 0)
+ {
CloseSession(session);
- else if(ret < 0)
+ }
+ else if (ret < 0)
{
if(ret != GNUTLS_E_AGAIN && ret != GNUTLS_E_INTERRUPTED)
+ {
CloseSession(session);
+ }
+ else
+ {
+ errno = EAGAIN;
+ }
}
else
{
}
}
+ MakePollWrite(session);
+
/* Who's smart idea was it to return 1 when we havent written anything?
- * This fucks the buffer up in InspSocket :p
+ * This fucks the buffer up in BufferedSocket :p
*/
return ret < 1 ? 0 : ret;
}
// :kenny.chatspike.net 320 Om Epy|AFK :is a Secure Connection
- virtual void OnWhois(userrec* source, userrec* dest)
+ virtual void OnWhois(User* source, User* dest)
{
+ if (!clientactive)
+ return;
+
// Bugfix, only send this numeric for *our* SSL users
if(dest->GetExt("ssl", dummy) || (IS_LOCAL(dest) && isin(dest->GetPort(), listenports)))
{
}
}
- virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname)
+ virtual void OnSyncUserMetaData(User* user, Module* proto, void* opaque, const std::string &extname, bool displayable)
{
// check if the linking module wants to know about OUR metadata
if(extname == "ssl")
{
// call this function in the linking module, let it format the data how it
// sees fit, and send it on its way. We dont need or want to know how.
- proto->ProtoSendMetaData(opaque, TYPE_USER, user, extname, "ON");
+ proto->ProtoSendMetaData(opaque, TYPE_USER, user, extname, displayable ? "Enabled" : "ON");
}
}
}
// check if its our metadata key, and its associated with a user
if ((target_type == TYPE_USER) && (extname == "ssl"))
{
- userrec* dest = (userrec*)target;
+ User* dest = (User*)target;
// if they dont already have an ssl flag, accept the remote server's
if (!dest->GetExt(extname, dummy))
{
{
// Handshake complete.
// This will do for setting the ssl flag...it could be done earlier if it's needed. But this seems neater.
- userrec* extendme = ServerInstance->FindDescriptor(session->fd);
+ User* extendme = ServerInstance->FindDescriptor(session->fd);
if (extendme)
{
if (!extendme->GetExt("ssl", dummy))
}
}
- virtual void OnPostConnect(userrec* user)
+ virtual void OnPostConnect(User* user)
{
// This occurs AFTER OnUserConnect so we can be sure the
- // protocol module has propogated the NICK message.
+ // protocol module has propagated the NICK message.
if ((user->GetExt("ssl", dummy)) && (IS_LOCAL(user)))
{
// Tell whatever protocol module we're using that we need to inform other servers of this metadata NOW.
metadata->push_back("ON"); // The value to send
Event* event = new Event((char*)metadata,(Module*)this,"send_metadata");
event->Send(ServerInstance); // Trigger the event. We don't care what module picks it up.
- DELETE(event);
- DELETE(metadata);
+ delete event;
+ delete metadata;
VerifyCertificate(&sessions[user->GetFd()],user);
+ if (sessions[user->GetFd()].sess)
+ {
+ std::string cipher = gnutls_kx_get_name(gnutls_kx_get(sessions[user->GetFd()].sess));
+ cipher.append("-").append(gnutls_cipher_get_name(gnutls_cipher_get(sessions[user->GetFd()].sess))).append("-");
+ cipher.append(gnutls_mac_get_name(gnutls_mac_get(sessions[user->GetFd()].sess)));
+ user->WriteServ("NOTICE %s :*** You are connected using SSL cipher \"%s\"", user->nick, cipher.c_str());
+ }
}
}
void MakePollWrite(issl_session* session)
{
- OnRawSocketWrite(session->fd, NULL, 0);
+ //OnRawSocketWrite(session->fd, NULL, 0);
+ EventHandler* eh = ServerInstance->FindDescriptor(session->fd);
+ if (eh)
+ ServerInstance->SE->WantWrite(eh);
+ }
+
+ virtual void OnBufferFlushed(User* user)
+ {
+ if (user->GetExt("ssl"))
+ {
+ issl_session* session = &sessions[user->GetFd()];
+ if (session && session->outbuf.size())
+ OnRawSocketWrite(user->GetFd(), NULL, 0);
+ }
}
void CloseSession(issl_session* session)
void VerifyCertificate(issl_session* session, Extensible* user)
{
+ if (!session->sess || !user)
+ return;
+
unsigned int status;
const gnutls_datum_t* cert_list;
int ret;
return;
}
-};
-
-class ModuleSSLGnuTLSFactory : public ModuleFactory
-{
- public:
- ModuleSSLGnuTLSFactory()
- {
- }
-
- ~ModuleSSLGnuTLSFactory()
+ void OnEvent(Event* ev)
{
+ GenericCapHandler(ev, "tls", "tls");
}
- virtual Module * CreateModule(InspIRCd* Me)
- {
- return new ModuleSSLGnuTLS(Me);
- }
};
-
-extern "C" void * init_module( void )
-{
- return new ModuleSSLGnuTLSFactory;
-}
+MODULE_INIT(ModuleSSLGnuTLS)
projects / user / henk / code / inspircd.git / blobdiff