]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/extra/m_ssl_openssl.cpp
Fix this so it works properly, and removes the descriptions on unload (when the socke...
[user/henk/code/inspircd.git] / src / modules / extra / m_ssl_openssl.cpp
index d1521ad4d9743ec408f908c0649f834d05798c79..ca690fb8f5e976f64f0edf3951af9a0b7180787c 100644 (file)
@@ -1,3 +1,16 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 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.
+ *
+ * ---------------------------------------------------
+ */
+
 #include <string>
 #include <vector>
 
 #include "hashcomp.h"
 #include "inspircd.h"
 
-#include "ssl_cert.h"
+#include "transport.h"
 
 /* $ModDesc: Provides SSL support for clients */
-/* $CompileFlags: -I/usr/include -I/usr/local/include */
-/* $LinkerFlags: -L/usr/local/lib -Wl,--rpath -Wl,/usr/local/lib -L/usr/lib -Wl,--rpath -Wl,/usr/lib -lssl */
-
-
+/* $CompileFlags: `perl extra/openssl_config.pl compile` */
+/* $LinkerFlags: `perl extra/openssl_config.pl link` */
+/* $ModDep: transport.h */
 
 enum issl_status { ISSL_NONE, ISSL_HANDSHAKING, ISSL_OPEN };
 enum issl_io_status { ISSL_WRITE, ISSL_READ };
@@ -105,6 +117,8 @@ class ModuleSSLOpenSSL : public Module
                : Module::Module(Me)
        {
                culllist = new CullList(ServerInstance);
+
+               ServerInstance->PublishInterface("InspSocketHook", this);
                
                // Not rehashable...because I cba to reduce all the sizes of existing buffers.
                inbufsize = ServerInstance->Config->NetBufferSize;
@@ -124,32 +138,35 @@ class ModuleSSLOpenSSL : public Module
        
        virtual void OnRehash(const std::string &param)
        {
-               if(param != "ssl")
+               if (param != "ssl")
                        return;
        
                Conf = new ConfigReader(ServerInstance);
                        
-               for(unsigned int i = 0; i < listenports.size(); i++)
+               for (unsigned int i = 0; i < listenports.size(); i++)
                {
                        ServerInstance->Config->DelIOHook(listenports[i]);
                }
                
                listenports.clear();
                
-               for(int i = 0; i < Conf->Enumerate("bind"); i++)
+               for (int i = 0; i < Conf->Enumerate("bind"); i++)
                {
                        // For each <bind> tag
-                       if(((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "openssl"))
+                       if (((Conf->ReadValue("bind", "type", i) == "") || (Conf->ReadValue("bind", "type", i) == "clients")) && (Conf->ReadValue("bind", "ssl", i) == "openssl"))
                        {
                                // Get the port we're meant to be listening on with SSL
                                std::string port = Conf->ReadValue("bind", "port", i);
-                               irc::portparser portrange(port);
+                               irc::portparser portrange(port, false);
                                long portno = -1;
                                while ((portno = portrange.GetToken()))
                                {
                                        if (ServerInstance->Config->AddIOHook(portno, this))
                                        {
                                                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_openssl.so: Enabling SSL for port %d", portno);
                                        }
                                        else
@@ -164,57 +181,53 @@ class ModuleSSLOpenSSL : public Module
                // +1 so we the path ends with a /
                confdir = confdir.substr(0, confdir.find_last_of('/') + 1);
                
-               cafile  = Conf->ReadValue("openssl", "cafile", 0);
-               // crlfile      = Conf->ReadValue("openssl", "crlfile", 0);
-               certfile        = Conf->ReadValue("openssl", "certfile", 0);
-               keyfile = Conf->ReadValue("openssl", "keyfile", 0);
-               dhfile  = Conf->ReadValue("openssl", "dhfile", 0);
+               cafile   = Conf->ReadValue("openssl", "cafile", 0);
+               certfile = Conf->ReadValue("openssl", "certfile", 0);
+               keyfile  = Conf->ReadValue("openssl", "keyfile", 0);
+               dhfile   = Conf->ReadValue("openssl", "dhfile", 0);
                
                // Set all the default values needed.
-               if(cafile == "")
+               if (cafile == "")
                        cafile = "ca.pem";
                        
-               //if(crlfile == "")
-               //      crlfile = "crl.pem";
-                       
-               if(certfile == "")
+               if (certfile == "")
                        certfile = "cert.pem";
                        
-               if(keyfile == "")
+               if (keyfile == "")
                        keyfile = "key.pem";
                        
-               if(dhfile == "")
+               if (dhfile == "")
                        dhfile = "dhparams.pem";
                        
                // Prepend relative paths with the path to the config directory.        
-               if(cafile[0] != '/')
+               if (cafile[0] != '/')
                        cafile = confdir + cafile;
                
                //if(crlfile[0] != '/')
                //      crlfile = confdir + crlfile;
                        
-               if(certfile[0] != '/')
+               if (certfile[0] != '/')
                        certfile = confdir + certfile;
                        
-               if(keyfile[0] != '/')
+               if (keyfile[0] != '/')
                        keyfile = confdir + keyfile;
                        
-               if(dhfile[0] != '/')
+               if (dhfile[0] != '/')
                        dhfile = confdir + dhfile;
 
                /* Load our keys and certificates*/
-               if(!SSL_CTX_use_certificate_chain_file(ctx, certfile.c_str()))
+               if (!SSL_CTX_use_certificate_chain_file(ctx, certfile.c_str()))
                {
                        ServerInstance->Log(DEFAULT, "m_ssl_openssl.so: Can't read certificate file %s", certfile.c_str());
                }
 
-               if(!SSL_CTX_use_PrivateKey_file(ctx, keyfile.c_str(), SSL_FILETYPE_PEM))
+               if (!SSL_CTX_use_PrivateKey_file(ctx, keyfile.c_str(), SSL_FILETYPE_PEM))
                {
                        ServerInstance->Log(DEFAULT, "m_ssl_openssl.so: Can't read key file %s", keyfile.c_str());
                }
 
                /* Load the CAs we trust*/
-               if(!SSL_CTX_load_verify_locations(ctx, cafile.c_str(), 0))
+               if (!SSL_CTX_load_verify_locations(ctx, cafile.c_str(), 0))
                {
                        ServerInstance->Log(DEFAULT, "m_ssl_openssl.so: Can't read CA list from ", cafile.c_str());
                }
@@ -222,10 +235,10 @@ class ModuleSSLOpenSSL : public Module
                FILE* dhpfile = fopen(dhfile.c_str(), "r");
                DH* ret;
 
-               if(dhpfile == NULL)
+               if (dhpfile == NULL)
                {
                        ServerInstance->Log(DEFAULT, "m_ssl_openssl.so Couldn't open DH file %s: %s", dhfile.c_str(), strerror(errno));
-                       throw ModuleException();
+                       throw ModuleException("Couldn't open DH file " + dhfile + ": " + strerror(errno));
                }
                else
                {
@@ -250,11 +263,11 @@ class ModuleSSLOpenSSL : public Module
        
        virtual void OnCleanup(int target_type, void* item)
        {
-               if(target_type == TYPE_USER)
+               if (target_type == TYPE_USER)
                {
                        userrec* user = (userrec*)item;
                        
-                       if(user->GetExt("ssl", dummy) && IS_LOCAL(user) && isin(user->GetPort(), listenports))
+                       if (user->GetExt("ssl", dummy) && IS_LOCAL(user) && 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.
@@ -273,14 +286,19 @@ class ModuleSSLOpenSSL : public Module
        
        virtual void OnUnloadModule(Module* mod, const std::string &name)
        {
-               if(mod == this)
+               if (mod == this)
                {
                        // We're being unloaded, kill all the users added to the cull list in OnCleanup
                        int numusers = culllist->Apply();
                        ServerInstance->Log(DEBUG, "m_ssl_openssl.so: Killed %d users for unload of OpenSSL SSL module", numusers);
                        
                        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])
+                                               ServerInstance->Config->openSockfd[j]->SetDescription("plaintext");
+                       }
                }
        }
        
@@ -291,12 +309,58 @@ class ModuleSSLOpenSSL : public Module
 
        void Implements(char* List)
        {
-               List[I_OnRawSocketAccept] = List[I_OnRawSocketClose] = List[I_OnRawSocketRead] = List[I_OnRawSocketWrite] = List[I_OnCleanup] = 1;
-               List[I_OnSyncUserMetaData] = List[I_OnDecodeMetaData] = List[I_OnUnloadModule] = List[I_OnRehash] = List[I_OnWhois] = List[I_OnPostConnect] = 1;
+               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 char* OnRequest(Request* request)
+       {
+               ISHRequest* ISR = (ISHRequest*)request;
+               ServerInstance->Log(DEBUG, "hook OnRequest");
+               if (strcmp("IS_NAME", request->GetId()) == 0)
+               {
+                       return "openssl";
+               }
+               else if (strcmp("IS_HOOK", request->GetId()) == 0)
+               {
+                       char* ret = "OK";
+                       try
+                       {
+                               ret = ServerInstance->Config->AddIOHook((Module*)this, (InspSocket*)ISR->Sock) ? (char*)"OK" : NULL;
+                       }
+                       catch (ModuleException &e)
+                       {
+                               return NULL;
+                       }
+
+                       return ret;
+               }
+               else if (strcmp("IS_UNHOOK", request->GetId()) == 0)
+               {
+                       ServerInstance->Log(DEBUG, "Unhooking socket %08x", ISR->Sock);
+                       return ServerInstance->Config->DelIOHook((InspSocket*)ISR->Sock) ? (char*)"OK" : NULL;
+               }
+               else if (strcmp("IS_HSDONE", request->GetId()) == 0)
+               {
+                       issl_session* session = &sessions[ISR->Sock->GetFd()];
+                       return (session->status == ISSL_HANDSHAKING) ? NULL : (char*)"OK";
+               }
+               else if (strcmp("IS_ATTACH", request->GetId()) == 0)
+               {
+                       issl_session* session = &sessions[ISR->Sock->GetFd()];
+                       if (session)
+                       {
+                               VerifyCertificate(session, (InspSocket*)ISR->Sock);
+                               return "OK";
+                       }
+               }
+               return NULL;
        }
 
+
        virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport)
        {
+               ServerInstance->Log(DEBUG, "Hook accept %d", fd);
                issl_session* session = &sessions[fd];
        
                session->fd = fd;
@@ -305,13 +369,13 @@ class ModuleSSLOpenSSL : public Module
                session->sess = SSL_new(ctx);
                session->status = ISSL_NONE;
        
-               if(session->sess == NULL)
+               if (session->sess == NULL)
                {
                        ServerInstance->Log(DEBUG, "m_ssl.so: Couldn't create SSL object: %s", get_error());
                        return;
                }
                
-               if(SSL_set_fd(session->sess, fd) == 0)
+               if (SSL_set_fd(session->sess, fd) == 0)
                {
                        ServerInstance->Log(DEBUG, "m_ssl.so: Couldn't set fd for SSL object: %s", get_error());
                        return;
@@ -320,6 +384,31 @@ class ModuleSSLOpenSSL : public Module
                Handshake(session);
        }
 
+       virtual void OnRawSocketConnect(int fd)
+       {
+               issl_session* session = &sessions[fd];
+
+               session->fd = fd;
+               session->inbuf = new char[inbufsize];
+               session->inbufoffset = 0;
+               session->sess = SSL_new(ctx);
+               session->status = ISSL_NONE;
+
+               if (session->sess == NULL)
+               {
+                       ServerInstance->Log(DEBUG, "m_ssl.so: Couldn't create SSL object: %s", get_error());
+                       return;
+               }
+
+               if (SSL_set_fd(session->sess, fd) == 0)
+               {
+                       ServerInstance->Log(DEBUG, "m_ssl.so: Couldn't set fd for SSL object: %s", get_error());
+                       return;
+               }
+
+               Handshake(session);
+       }
+
        virtual void OnRawSocketClose(int fd)
        {
                ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketClose: %d", fd);
@@ -340,7 +429,7 @@ class ModuleSSLOpenSSL : public Module
        {
                issl_session* session = &sessions[fd];
                
-               if(!session->sess)
+               if (!session->sess)
                {
                        ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: No session to read from");
                        readresult = 0;
@@ -348,12 +437,12 @@ class ModuleSSLOpenSSL : public Module
                        return 1;
                }
                
-               if(session->status == ISSL_HANDSHAKING)
+               if (session->status == ISSL_HANDSHAKING)
                {
-                       if(session->rstat == ISSL_READ || session->wstat == ISSL_READ)
+                       if (session->rstat == ISSL_READ || session->wstat == ISSL_READ)
                        {
                                // The handshake isn't finished and it wants to read, try to finish it.
-                               if(Handshake(session))
+                               if (Handshake(session))
                                {
                                        // Handshake successfully resumed.
                                        ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: successfully resumed handshake");
@@ -374,21 +463,21 @@ class ModuleSSLOpenSSL : public Module
 
                // If we resumed the handshake then session->status will be ISSL_OPEN
                                
-               if(session->status == ISSL_OPEN)
+               if (session->status == ISSL_OPEN)
                {
-                       if(session->wstat == ISSL_READ)
+                       if (session->wstat == ISSL_READ)
                        {
                                if(DoWrite(session) == 0)
                                        return 0;
                        }
                        
-                       if(session->rstat == ISSL_READ)
+                       if (session->rstat == ISSL_READ)
                        {
                                int ret = DoRead(session);
                        
-                               if(ret > 0)
+                               if (ret > 0)
                                {
-                                       if(count <= session->inbufoffset)
+                                       if (count <= session->inbufoffset)
                                        {
                                                memcpy(buffer, session->inbuf, count);
                                                // Move the stuff left in inbuf to the beginning of it
@@ -424,7 +513,7 @@ class ModuleSSLOpenSSL : public Module
        {               
                issl_session* session = &sessions[fd];
 
-               if(!session->sess)
+               if (!session->sess)
                {
                        ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: No session to write to");
                        CloseSession(session);
@@ -433,12 +522,12 @@ class ModuleSSLOpenSSL : public Module
 
                session->outbuf.append(buffer, count);
                
-               if(session->status == ISSL_HANDSHAKING)
+               if (session->status == ISSL_HANDSHAKING)
                {
                        // The handshake isn't finished, try to finish it.
-                       if(session->rstat == ISSL_WRITE || session->wstat == ISSL_WRITE)
+                       if (session->rstat == ISSL_WRITE || session->wstat == ISSL_WRITE)
                        {
-                               if(Handshake(session))
+                               if (Handshake(session))
                                {
                                        // Handshake successfully resumed.
                                        ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: successfully resumed handshake");
@@ -455,14 +544,14 @@ class ModuleSSLOpenSSL : public Module
                        }
                }
                
-               if(session->status == ISSL_OPEN)
+               if (session->status == ISSL_OPEN)
                {
-                       if(session->rstat == ISSL_WRITE)
+                       if (session->rstat == ISSL_WRITE)
                        {
                                DoRead(session);
                        }
                        
-                       if(session->wstat == ISSL_WRITE)
+                       if (session->wstat == ISSL_WRITE)
                        {
                                return DoWrite(session);
                        }
@@ -473,25 +562,29 @@ class ModuleSSLOpenSSL : public Module
        
        int DoWrite(issl_session* session)
        {
+               if (!session->outbuf.size())
+                       return -1;
+
+               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: To write: %d", session->outbuf.size());
                int ret = SSL_write(session->sess, session->outbuf.data(), session->outbuf.size());
                
-               if(ret == 0)
+               if (ret == 0)
                {
                        ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoWrite: Client closed the connection");
                        CloseSession(session);
                        return 0;
                }
-               else if(ret < 0)
+               else if (ret < 0)
                {
                        int err = SSL_get_error(session->sess, ret);
                        
-                       if(err == SSL_ERROR_WANT_WRITE)
+                       if (err == SSL_ERROR_WANT_WRITE)
                        {
                                ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoWrite: Not all SSL data written, need to retry: %s", get_error());
                                session->wstat = ISSL_WRITE;
                                return -1;
                        }
-                       else if(err == SSL_ERROR_WANT_READ)
+                       else if (err == SSL_ERROR_WANT_READ)
                        {
                                ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoWrite: Not all SSL data written but the damn thing wants to read instead: %s", get_error());
                                session->wstat = ISSL_READ;
@@ -518,24 +611,24 @@ class ModuleSSLOpenSSL : public Module
                        
                int ret = SSL_read(session->sess, session->inbuf + session->inbufoffset, inbufsize - session->inbufoffset);
 
-               if(ret == 0)
+               if (ret == 0)
                {
                        // Client closed connection.
                        ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoRead: Client closed the connection");
                        CloseSession(session);
                        return 0;
                }
-               else if(ret < 0)
+               else if (ret < 0)
                {
                        int err = SSL_get_error(session->sess, ret);
                                
-                       if(err == SSL_ERROR_WANT_READ)
+                       if (err == SSL_ERROR_WANT_READ)
                        {
                                ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoRead: Not all SSL data read, need to retry: %s", get_error());
                                session->rstat = ISSL_READ;
                                return -1;
                        }
-                       else if(err == SSL_ERROR_WANT_WRITE)
+                       else if (err == SSL_ERROR_WANT_WRITE)
                        {
                                ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoRead: Not all SSL data read but the damn thing wants to write instead: %s", get_error());
                                session->rstat = ISSL_WRITE;
@@ -564,7 +657,7 @@ class ModuleSSLOpenSSL : public Module
        virtual void OnWhois(userrec* source, userrec* dest)
        {
                // 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) &&  isin(dest->GetPort(), listenports)))
                {
                        ServerInstance->SendWhoisLine(source, dest, 320, "%s %s :is using a secure connection", source->nick, dest->nick);
                }
@@ -573,7 +666,7 @@ class ModuleSSLOpenSSL : public Module
        virtual void OnSyncUserMetaData(userrec* user, Module* proto, void* opaque, const std::string &extname)
        {
                // check if the linking module wants to know about OUR metadata
-               if(extname == "ssl")
+               if (extname == "ssl")
                {
                        // check if this user has an swhois field to send
                        if(user->GetExt(extname, dummy))
@@ -603,17 +696,17 @@ class ModuleSSLOpenSSL : public Module
        {               
                int ret = SSL_accept(session->sess);
       
-               if(ret < 0)
+               if (ret < 0)
                {
                        int err = SSL_get_error(session->sess, ret);
                                
-                       if(err == SSL_ERROR_WANT_READ)
+                       if (err == SSL_ERROR_WANT_READ)
                        {
                                ServerInstance->Log(DEBUG, "m_ssl_openssl.so: Handshake: Not completed, need to read again: %s", get_error());
                                session->rstat = ISSL_READ;
                                session->status = ISSL_HANDSHAKING;
                        }
-                       else if(err == SSL_ERROR_WANT_WRITE)
+                       else if (err == SSL_ERROR_WANT_WRITE)
                        {
                                ServerInstance->Log(DEBUG, "m_ssl_openssl.so: Handshake: Not completed, need to write more data: %s", get_error());
                                session->wstat = ISSL_WRITE;
@@ -676,13 +769,13 @@ class ModuleSSLOpenSSL : public Module
        
        void CloseSession(issl_session* session)
        {
-               if(session->sess)
+               if (session->sess)
                {
                        SSL_shutdown(session->sess);
                        SSL_free(session->sess);
                }
                
-               if(session->inbuf)
+               if (session->inbuf)
                {
                        delete[] session->inbuf;
                }
@@ -693,7 +786,7 @@ class ModuleSSLOpenSSL : public Module
                session->status = ISSL_NONE;
        }
 
-       void VerifyCertificate(issl_session* session, userrec* user)
+       void VerifyCertificate(issl_session* session, Extensible* user)
        {
                X509* cert;
                ssl_cert* certinfo = new ssl_cert;
@@ -736,8 +829,6 @@ class ModuleSSLOpenSSL : public Module
                        certinfo->data.insert(std::make_pair("fingerprint",irc::hex(md, n)));
                }
 
-               user->WriteServ("NOTICE %s :*** Your SSL Certificate fingerprint is: %s", user->nick, irc::hex(md, n).c_str());
-
                if ((ASN1_UTCTIME_cmp_time_t(X509_get_notAfter(cert), time(NULL)) == -1) || (ASN1_UTCTIME_cmp_time_t(X509_get_notBefore(cert), time(NULL)) == 0))
                {
                        certinfo->data.insert(std::make_pair("error","Not activated, or expired certificate"));