X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules%2Fextra%2Fm_ssl_gnutls.cpp;h=27456959a90cb173959ace1ce21f674ad3031fed;hb=59ca4eec57a9c8b37e79e3031c74b59d4803fc28;hp=fd8b12d322abe678efe2ced3e5f70f0dd1185221;hpb=c773dc8d0c9ab4873aa850bd31f14685bdfb6c07;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules/extra/m_ssl_gnutls.cpp b/src/modules/extra/m_ssl_gnutls.cpp index fd8b12d32..27456959a 100644 --- a/src/modules/extra/m_ssl_gnutls.cpp +++ b/src/modules/extra/m_ssl_gnutls.cpp @@ -2,11 +2,11 @@ * | 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. * * --------------------------------------------------- */ @@ -24,28 +24,30 @@ #include "socket.h" #include "hashcomp.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 }; -bool isin(int port, const std::vector &portlist) +bool isin(const std::string &host, int port, const std::vector &portlist) { - for(unsigned int i = 0; i < portlist.size(); i++) - if(portlist[i] == port) - return true; + if (std::find(portlist.begin(), portlist.end(), "*:" + ConvToStr(port)) != portlist.end()) + return true; - return false; + if (std::find(portlist.begin(), portlist.end(), ":" + ConvToStr(port)) != portlist.end()) + return true; + + return std::find(portlist.begin(), portlist.end(), host + ":" + ConvToStr(port)) != portlist.end(); } /** Represents an SSL user's extra data @@ -61,6 +63,25 @@ public: 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) + { + user->io = Caller; + Caller->OnRawSocketAccept(user->GetFd(), user->GetIPString(), user->GetPort()); + + return CMD_FAILURE; + } +}; + class ModuleSSLGnuTLS : public Module { @@ -68,10 +89,10 @@ class ModuleSSLGnuTLS : public Module char* dummy; - std::vector listenports; + std::vector listenports; int inbufsize; - issl_session sessions[MAX_DESCRIPTORS]; + issl_session* sessions; gnutls_certificate_credentials x509_cred; gnutls_dh_params dh_params; @@ -85,12 +106,16 @@ class ModuleSSLGnuTLS : public Module int clientactive; + CommandStartTLS* starttls; + public: ModuleSSLGnuTLS(InspIRCd* Me) : Module(Me) { - ServerInstance->PublishInterface("InspSocketHook", this); + ServerInstance->Modules->PublishInterface("BufferedSocketHook", this); + + sessions = new issl_session[ServerInstance->SE->GetMaxFds()]; // Not rehashable...because I cba to reduce all the sizes of existing buffers. inbufsize = ServerInstance->Config->NetBufferSize; @@ -98,43 +123,43 @@ class ModuleSSLGnuTLS : public Module 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++) - { - ServerInstance->Config->DelIOHook(listenports[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 tag - std::string x = Conf->ReadValue("bind", "type", i); - if(((x.empty()) || (x == "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); + std::string addr = Conf->ReadValue("bind", "address", index); + irc::portparser portrange(port, false); long portno = -1; while ((portno = portrange.GetToken())) @@ -142,28 +167,32 @@ class ModuleSSLGnuTLS : public Module clientactive++; try { - 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->Log(DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %d", portno); - sslports.append("*:").append(ConvToStr(portno)).append(";"); - } - else - { - ServerInstance->Log(DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", portno); - } + listenports.push_back(addr + ":" + ConvToStr(portno)); + + for (size_t i = 0; i < ServerInstance->Config->ports.size(); i++) + if ((ServerInstance->Config->ports[i]->GetPort() == portno) && (ServerInstance->Config->ports[i]->GetIP() == addr)) + ServerInstance->Config->ports[i]->SetDescription("ssl"); + ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Enabling SSL for port %ld", portno); + + sslports.append((addr.empty() ? "*" : addr)).append(":").append(ConvToStr(portno)).append(";"); } catch (ModuleException &e) { - ServerInstance->Log(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()); + ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: FAILED to enable SSL on port %ld: %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()); } } } } + if (!sslports.empty()) + sslports.erase(sslports.end() - 1); + + 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); @@ -206,10 +235,10 @@ class ModuleSSLGnuTLS : public Module 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)); if((ret = gnutls_certificate_set_x509_key_file (x509_cred, certfile.c_str(), keyfile.c_str(), GNUTLS_X509_FMT_PEM)) < 0) { @@ -220,7 +249,7 @@ class ModuleSSLGnuTLS : public Module // This may be on a large (once a day or week) timer eventually. GenerateDHParams(); - DELETE(Conf); + delete Conf; } void GenerateDHParams() @@ -233,7 +262,7 @@ class ModuleSSLGnuTLS : public Module 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() @@ -241,27 +270,31 @@ class ModuleSSLGnuTLS : public Module gnutls_dh_params_deinit(dh_params); gnutls_certificate_free_credentials(x509_cred); gnutls_global_deinit(); + ServerInstance->Modules->UnpublishInterface("BufferedSocketHook", this); + delete[] sessions; } virtual void OnCleanup(int target_type, void* item) { if(target_type == TYPE_USER) { - userrec* user = (userrec*)item; + User* user = (User*)item; - if(user->GetExt("ssl", dummy) && isin(user->GetPort(), listenports)) + if(user->io) { // 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)) + if (user->GetExt("ssl_cert", dummy)) { ssl_cert* tofree; user->GetExt("ssl_cert", tofree); delete tofree; user->Shrink("ssl_cert"); } + + user->io = NULL; } } @@ -271,9 +304,8 @@ class ModuleSSLGnuTLS : public Module { for(unsigned int i = 0; i < listenports.size(); i++) { - ServerInstance->Config->DelIOHook(listenports[i]); for (size_t j = 0; j < ServerInstance->Config->ports.size(); j++) - if (ServerInstance->Config->ports[j]->GetPort() == listenports[i]) + if (listenports[i] == (ServerInstance->Config->ports[j]->GetIP()+":"+ConvToStr(ServerInstance->Config->ports[j]->GetPort()))) ServerInstance->Config->ports[j]->SetDescription("plaintext"); } } @@ -281,21 +313,25 @@ class ModuleSSLGnuTLS : public Module 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) - { - List[I_On005Numeric] = 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; - } virtual void On005Numeric(std::string &output) { output.append(" SSL=" + sslports); } - virtual char* OnRequest(Request* request) + virtual void OnHookUserIO(User* user, const std::string &targetip) + { + if (!user->io && isin(targetip,user->GetPort(),listenports)) + { + /* Hook the user with our module */ + user->io = this; + } + } + + virtual const char* OnRequest(Request* request) { ISHRequest* ISR = (ISHRequest*)request; if (strcmp("IS_NAME", request->GetId()) == 0) @@ -304,10 +340,10 @@ class ModuleSSLGnuTLS : public Module } 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) { @@ -317,15 +353,15 @@ class ModuleSSLGnuTLS : public Module } 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 (char*)"OK"; + 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) { @@ -336,7 +372,7 @@ class ModuleSSLGnuTLS : public Module { if ((Extensible*)ServerInstance->FindDescriptor(ISR->Sock->GetFd()) == (Extensible*)(ISR->Sock)) { - VerifyCertificate(session, (InspSocket*)ISR->Sock); + VerifyCertificate(session, (BufferedSocket*)ISR->Sock); return "OK"; } } @@ -348,6 +384,10 @@ class ModuleSSLGnuTLS : public Module 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 > ServerInstance->SE->GetMaxFds() - 1)) + return; + issl_session* session = &sessions[fd]; session->fd = fd; @@ -377,6 +417,10 @@ class ModuleSSLGnuTLS : public Module 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 > ServerInstance->SE->GetMaxFds() - 1)) + return; + issl_session* session = &sessions[fd]; session->fd = fd; @@ -395,6 +439,10 @@ class ModuleSSLGnuTLS : public Module 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 > ServerInstance->SE->GetMaxFds())) + return; + CloseSession(&sessions[fd]); EventHandler* user = ServerInstance->SE->GetRef(fd); @@ -410,6 +458,10 @@ class ModuleSSLGnuTLS : public Module 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 > ServerInstance->SE->GetMaxFds() - 1)) + return 0; + issl_session* session = &sessions[fd]; if (!session->sess) @@ -432,6 +484,7 @@ class ModuleSSLGnuTLS : public Module else if (session->status == ISSL_HANDSHAKING_WRITE) { errno = EAGAIN; + MakePollWrite(session); return -1; } @@ -500,7 +553,8 @@ class ModuleSSLGnuTLS : public Module 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 > ServerInstance->SE->GetMaxFds() - 1)) return 0; issl_session* session = &sessions[fd]; @@ -508,7 +562,6 @@ class ModuleSSLGnuTLS : public Module if (!session->sess) { - ServerInstance->Log(DEBUG,"No session"); CloseSession(session); return 1; } @@ -520,7 +573,6 @@ class ModuleSSLGnuTLS : public Module if (session->status == ISSL_HANDSHAKING_WRITE) { // The handshake isn't finished, try to finish it. - ServerInstance->Log(DEBUG,"Finishing handshake"); Handshake(session); errno = EAGAIN; return -1; @@ -530,9 +582,7 @@ class ModuleSSLGnuTLS : public Module if (session->status == ISSL_HANDSHAKEN) { - ServerInstance->Log(DEBUG,"Send record"); ret = gnutls_record_send(session->sess, sendbuffer, count); - ServerInstance->Log(DEBUG,"Return: %d", ret); if (ret == 0) { @@ -542,43 +592,41 @@ class ModuleSSLGnuTLS : public Module { if(ret != GNUTLS_E_AGAIN && ret != GNUTLS_E_INTERRUPTED) { - ServerInstance->Log(DEBUG,"Not egain or interrupt, close session"); CloseSession(session); } else { - ServerInstance->Log(DEBUG,"Again please"); errno = EAGAIN; - return -1; } } else { - ServerInstance->Log(DEBUG,"Trim buffer"); session->outbuf = session->outbuf.substr(ret); } } + 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))) + if (dest->GetExt("ssl", dummy) || ((IS_LOCAL(dest) && (dest->io == this)))) { ServerInstance->SendWhoisLine(source, dest, 320, "%s %s :is using a secure connection", source->nick, dest->nick); } } - virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname, bool displayable) + 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") @@ -598,7 +646,7 @@ class ModuleSSLGnuTLS : public Module // 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)) { @@ -642,7 +690,7 @@ class ModuleSSLGnuTLS : public Module { // 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)) @@ -659,21 +707,14 @@ class ModuleSSLGnuTLS : public Module } } - 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. - std::deque* metadata = new std::deque; - metadata->push_back(user->nick); - metadata->push_back("ssl"); // The metadata id - 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); + ServerInstance->PI->SendMetaData(user, TYPE_USER, "SSL", "on"); VerifyCertificate(&sessions[user->GetFd()],user); if (sessions[user->GetFd()].sess) @@ -688,7 +729,20 @@ class ModuleSSLGnuTLS : public Module 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) @@ -837,7 +891,16 @@ class ModuleSSLGnuTLS : public Module return; } -}; + void OnEvent(Event* ev) + { + GenericCapHandler(ev, "tls", "tls"); + } -MODULE_INIT(ModuleSSLGnuTLS); + void Prioritize() + { + Module* server = ServerInstance->Modules->Find("m_spanningtree.so"); + ServerInstance->Modules->SetPriority(this, I_OnPostConnect, PRIO_AFTER, &server); + } +}; +MODULE_INIT(ModuleSSLGnuTLS)