]> 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 c0f02f322cb40b8845d468e5969e06aca46c11e9..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 "users.h"
 #include "channels.h"
 #include "modules.h"
-#include "helperfuncs.h"
+
 #include "socket.h"
 #include "hashcomp.h"
 #include "inspircd.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 */
+#include "transport.h"
 
-extern InspIRCd* ServerInstance;
+/* $ModDesc: Provides SSL support for clients */
+/* $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 };
 
+static bool SelfSigned = false;
+
 bool isin(int port, const std::vector<int> &portlist)
 {
        for(unsigned int i = 0; i < portlist.size(); i++)
@@ -37,6 +53,8 @@ char* get_error()
        return ERR_error_string(ERR_get_error(), NULL);
 }
 
+/** Represents an SSL user's extra data
+ */
 class issl_session : public classbase
 {
 public:
@@ -57,12 +75,26 @@ public:
        }
 };
 
+static int OnVerify(int preverify_ok, X509_STORE_CTX *ctx)
+{
+       /* XXX: This will allow self signed certificates.
+        * In the future if we want an option to not allow this,
+        * we can just return preverify_ok here, and openssl
+        * will boot off self-signed and invalid peer certs.
+        */
+       int ve = X509_STORE_CTX_get_error(ctx);
+
+       SelfSigned = (ve == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT);
+
+       return 1;
+}
+       
 class ModuleSSLOpenSSL : public Module
 {
-       Server* Srv;
+       
        ConfigReader* Conf;
        
-       CullList culllist;
+       CullList* culllist;
        
        std::vector<int> listenports;
        
@@ -81,10 +113,12 @@ class ModuleSSLOpenSSL : public Module
        
  public:
        
-       ModuleSSLOpenSSL(Server* Me)
+       ModuleSSLOpenSSL(InspIRCd* Me)
                : Module::Module(Me)
        {
-               Srv = 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;
@@ -96,41 +130,49 @@ class ModuleSSLOpenSSL : public Module
                /* Build our SSL context*/
                ctx = SSL_CTX_new( SSLv23_server_method() );
 
+               SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, OnVerify);
+
                // Needs the flag as it ignores a plain /rehash
                OnRehash("ssl");
        }
        
        virtual void OnRehash(const std::string &param)
        {
-               if(param != "ssl")
+               if (param != "ssl")
                        return;
        
-               Conf = new ConfigReader;
+               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
-                               unsigned int port = Conf->ReadInteger("bind", "port", i, true);
-                               if (ServerInstance->Config->AddIOHook(port, this))
-                               {
-                                       // We keep a record of which ports we're listening on with SSL
-                                       listenports.push_back(port);
-                               
-                                       log(DEFAULT, "m_ssl_openssl.so: Enabling SSL for port %d", port);
-                               }
-                               else
+                               std::string port = Conf->ReadValue("bind", "port", i);
+                               irc::portparser portrange(port, false);
+                               long portno = -1;
+                               while ((portno = portrange.GetToken()))
                                {
-                                       log(DEFAULT, "m_ssl_openssl.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", port);
+                                       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
+                                       {
+                                               ServerInstance->Log(DEFAULT, "m_ssl_openssl.so: FAILED to enable SSL on port %d, maybe you have another ssl or similar module loaded?", portno);
+                                       }
                                }
                        }
                }
@@ -139,68 +181,64 @@ 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()))
                {
-                       log(DEFAULT, "m_ssl_openssl.so: Can't read certificate file %s", 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))
                {
-                       log(DEFAULT, "m_ssl_openssl.so: Can't read key file %s", keyfile.c_str());
+                       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))
                {
-                       log(DEFAULT, "m_ssl_openssl.so: Can't read CA list from ", cafile.c_str());
+                       ServerInstance->Log(DEFAULT, "m_ssl_openssl.so: Can't read CA list from ", cafile.c_str());
                }
 
                FILE* dhpfile = fopen(dhfile.c_str(), "r");
                DH* ret;
 
-               if(dhpfile == NULL)
+               if (dhpfile == NULL)
                {
-                       log(DEFAULT, "m_ssl_openssl.so Couldn't open DH file %s: %s", dhfile.c_str(), strerror(errno));
-                       throw ModuleException();
+                       ServerInstance->Log(DEFAULT, "m_ssl_openssl.so Couldn't open DH file %s: %s", dhfile.c_str(), strerror(errno));
+                       throw ModuleException("Couldn't open DH file " + dhfile + ": " + strerror(errno));
                }
                else
                {
@@ -208,7 +246,7 @@ class ModuleSSLOpenSSL : public Module
                
                        if(SSL_CTX_set_tmp_dh(ctx, ret) < 0)
                        {
-                               log(DEFAULT, "m_ssl_openssl.so: Couldn't set DH parameters");
+                               ServerInstance->Log(DEFAULT, "m_ssl_openssl.so: Couldn't set DH parameters");
                        }
                }
                
@@ -220,50 +258,109 @@ class ModuleSSLOpenSSL : public Module
        virtual ~ModuleSSLOpenSSL()
        {
                SSL_CTX_free(ctx);
+               delete culllist;
        }
        
        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.
-                               log(DEBUG, "m_ssl_openssl.so: Adding user %s to cull list", user->nick);
-                               culllist.AddItem(user, "SSL module unloading");
+                               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: Adding user %s to cull list", user->nick);
+                               culllist->AddItem(user, "SSL module unloading");
+                       }
+                       if (user->GetExt("ssl_cert", dummy) && isin(user->GetPort(), listenports))
+                       {
+                               ssl_cert* tofree;
+                               user->GetExt("ssl_cert", tofree);
+                               delete tofree;
+                               user->Shrink("ssl_cert");
                        }
                }
        }
        
        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();
-                       log(DEBUG, "m_ssl_openssl.so: Killed %d users for unload of OpenSSL SSL module", numusers);
+                       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");
+                       }
                }
        }
        
        virtual Version GetVersion()
        {
-               return Version(1, 0, 0, 0, VF_VENDOR);
+               return Version(1, 1, 0, 0, VF_VENDOR, API_VERSION);
        }
 
        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_OnGlobalConnect] = 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;
@@ -272,82 +369,115 @@ class ModuleSSLOpenSSL : public Module
                session->sess = SSL_new(ctx);
                session->status = ISSL_NONE;
        
-               if(session->sess == NULL)
+               if (session->sess == NULL)
                {
-                       log(DEBUG, "m_ssl.so: Couldn't create SSL object: %s", get_error());
+                       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)
                {
-                       log(DEBUG, "m_ssl.so: Couldn't set fd for SSL object: %s", get_error());
+                       ServerInstance->Log(DEBUG, "m_ssl.so: Couldn't set fd for SSL object: %s", get_error());
                        return;
                }
 
                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)
        {
-               log(DEBUG, "m_ssl_openssl.so: OnRawSocketClose: %d", fd);
+               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketClose: %d", fd);
                CloseSession(&sessions[fd]);
+
+               EventHandler* user = ServerInstance->SE->GetRef(fd);
+
+               if ((user) && (user->GetExt("ssl_cert", dummy)))
+               {
+                       ssl_cert* tofree;
+                       user->GetExt("ssl_cert", tofree);
+                       delete tofree;
+                       user->Shrink("ssl_cert");
+               }
        }
-       
+
        virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult)
        {
                issl_session* session = &sessions[fd];
                
-               if(!session->sess)
+               if (!session->sess)
                {
-                       log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: No session to read from");
+                       ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: No session to read from");
                        readresult = 0;
                        CloseSession(session);
                        return 1;
                }
                
-               log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead(%d, buffer, %u, %d)", fd, count, readresult);
-               
-               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.
-                                       log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: successfully resumed handshake");
+                                       ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: successfully resumed handshake");
                                }
                                else
                                {
                                        // Couldn't resume handshake.   
-                                       log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: failed to resume handshake");
+                                       ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: failed to resume handshake");
                                        return -1;
                                }
                        }
                        else
                        {
-                               log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
+                               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: handshake wants to write data but we are currently reading");
                                return -1;                      
                        }
                }
-               
+
                // 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
@@ -367,9 +497,6 @@ class ModuleSSLOpenSSL : public Module
                                                session->inbufoffset = 0;
                                        }
                                
-                                       log(DEBUG, "m_ssl_openssl.so: OnRawSocketRead: Passing %d bytes up to insp:", count);
-                                       Srv->Log(DEBUG, std::string(buffer, readresult));
-                               
                                        return 1;
                                }
                                else
@@ -386,46 +513,45 @@ class ModuleSSLOpenSSL : public Module
        {               
                issl_session* session = &sessions[fd];
 
-               if(!session->sess)
+               if (!session->sess)
                {
-                       log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: No session to write to");
+                       ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: No session to write to");
                        CloseSession(session);
                        return 1;
                }
-               
-               log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: Adding %d bytes to the outgoing buffer", count);                
+
                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.
-                                       log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: successfully resumed handshake");
+                                       ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: successfully resumed handshake");
                                }
                                else
                                {
                                        // Couldn't resume handshake.   
-                                       log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: failed to resume handshake"); 
+                                       ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: failed to resume handshake"); 
                                }
                        }
                        else
                        {
-                               log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: handshake wants to read data but we are currently writing");                    
+                               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: OnRawSocketWrite: handshake wants to read data but we are currently writing");                    
                        }
                }
                
-               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);
                        }
@@ -436,43 +562,43 @@ class ModuleSSLOpenSSL : public Module
        
        int DoWrite(issl_session* session)
        {
-               log(DEBUG, "m_ssl_openssl.so: DoWrite: Trying to write %d bytes:", session->outbuf.size());
-               Srv->Log(DEBUG, session->outbuf);
-                       
+               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)
                {
-                       log(DEBUG, "m_ssl_openssl.so: DoWrite: Client closed the connection");
+                       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)
                        {
-                               log(DEBUG, "m_ssl_openssl.so: DoWrite: Not all SSL data written, need to retry: %s", get_error());
+                               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)
                        {
-                               log(DEBUG, "m_ssl_openssl.so: DoWrite: Not all SSL data written but the damn thing wants to read instead: %s", get_error());
+                               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;
                                return -1;
                        }
                        else
                        {
-                               log(DEBUG, "m_ssl_openssl.so: DoWrite: Error writing SSL data: %s", get_error());
+                               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoWrite: Error writing SSL data: %s", get_error());
                                CloseSession(session);
                                return 0;
                        }
                }
                else
                {
-                       log(DEBUG, "m_ssl_openssl.so: DoWrite: Successfully wrote %d bytes", ret);
                        session->outbuf = session->outbuf.substr(ret);
                        return ret;
                }
@@ -482,36 +608,35 @@ class ModuleSSLOpenSSL : public Module
        {
                // Is this right? Not sure if the unencrypted data is garaunteed to be the same length.
                // Read into the inbuffer, offset from the beginning by the amount of data we have that insp hasn't taken yet.
-               log(DEBUG, "m_ssl_openssl.so: DoRead: SSL_read(sess, inbuf+%d, %d-%d)", session->inbufoffset, inbufsize, session->inbufoffset);
                        
                int ret = SSL_read(session->sess, session->inbuf + session->inbufoffset, inbufsize - session->inbufoffset);
 
-               if(ret == 0)
+               if (ret == 0)
                {
                        // Client closed connection.
-                       log(DEBUG, "m_ssl_openssl.so: DoRead: Client closed the 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)
                        {
-                               log(DEBUG, "m_ssl_openssl.so: DoRead: Not all SSL data read, need to retry: %s", get_error());
+                               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)
                        {
-                               log(DEBUG, "m_ssl_openssl.so: DoRead: Not all SSL data read but the damn thing wants to write instead: %s", get_error());
+                               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;
                                return -1;
                        }
                        else
                        {
-                               log(DEBUG, "m_ssl_openssl.so: DoRead: Error reading SSL data: %s", get_error());
+                               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: DoRead: Error reading SSL data: %s", get_error());
                                CloseSession(session);
                                return 0;
                        }
@@ -521,8 +646,6 @@ class ModuleSSLOpenSSL : public Module
                        // Read successfully 'ret' bytes into inbuf + inbufoffset
                        // There are 'ret' + 'inbufoffset' bytes of data in 'inbuf'
                        // 'buffer' is 'count' long
-                       
-                       log(DEBUG, "m_ssl_openssl.so: DoRead: Read %d bytes, now have %d waiting to be passed up", ret, ret + session->inbufoffset);
 
                        session->inbufoffset += ret;
 
@@ -534,16 +657,16 @@ 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)))
                {
-                       source->WriteServ("320 %s %s :is using a secure connection", source->nick, dest->nick);
+                       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)
        {
                // 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))
@@ -573,26 +696,26 @@ 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)
                        {
-                               log(DEBUG, "m_ssl_openssl.so: Handshake: Not completed, need to read again: %s", get_error());
+                               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)
                        {
-                               log(DEBUG, "m_ssl_openssl.so: Handshake: Not completed, need to write more data: %s", get_error());
+                               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: Handshake: Not completed, need to write more data: %s", get_error());
                                session->wstat = ISSL_WRITE;
                                session->status = ISSL_HANDSHAKING;
                                MakePollWrite(session);
                        }
                        else
                        {
-                               log(DEBUG, "m_ssl_openssl.so: Handshake: Failed, bailing: %s", get_error());
+                               ServerInstance->Log(DEBUG, "m_ssl_openssl.so: Handshake: Failed, bailing: %s", get_error());
                                CloseSession(session);
                        }
 
@@ -601,10 +724,10 @@ class ModuleSSLOpenSSL : public Module
                else
                {
                        // Handshake complete.
-                       log(DEBUG, "m_ssl_openssl.so: Handshake completed");
+                       ServerInstance->Log(DEBUG, "m_ssl_openssl.so: Handshake completed");
                        
                        // This will do for setting the ssl flag...it could be done earlier if it's needed. But this seems neater.
-                       userrec* u = Srv->FindDescriptor(session->fd);
+                       userrec* u = ServerInstance->FindDescriptor(session->fd);
                        if (u)
                        {
                                if (!u->GetExt("ssl", dummy))
@@ -619,7 +742,7 @@ class ModuleSSLOpenSSL : public Module
                }
        }
        
-       virtual void OnGlobalConnect(userrec* user)
+       virtual void OnPostConnect(userrec* user)
        {
                // This occurs AFTER OnUserConnect so we can be sure the
                // protocol module has propogated the NICK message.
@@ -631,9 +754,11 @@ class ModuleSSLOpenSSL : public Module
                        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();                          // Trigger the event. We don't care what module picks it up.
+                       event->Send(ServerInstance);            // Trigger the event. We don't care what module picks it up.
                        DELETE(event);
                        DELETE(metadata);
+
+                       VerifyCertificate(&sessions[user->GetFd()], user);
                }
        }
        
@@ -644,13 +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;
                }
@@ -660,6 +785,57 @@ class ModuleSSLOpenSSL : public Module
                session->sess = NULL;
                session->status = ISSL_NONE;
        }
+
+       void VerifyCertificate(issl_session* session, Extensible* user)
+       {
+               X509* cert;
+               ssl_cert* certinfo = new ssl_cert;
+               unsigned int n;
+               unsigned char md[EVP_MAX_MD_SIZE];
+               const EVP_MD *digest = EVP_md5();
+
+               user->Extend("ssl_cert",certinfo);
+
+               cert = SSL_get_peer_certificate((SSL*)session->sess);
+
+               if (!cert)
+               {
+                       certinfo->data.insert(std::make_pair("error","Could not get peer certificate: "+std::string(get_error())));
+                       return;
+               }
+
+               certinfo->data.insert(std::make_pair("invalid", SSL_get_verify_result(session->sess) != X509_V_OK ? ConvToStr(1) : ConvToStr(0)));
+
+               if (SelfSigned)
+               {
+                       certinfo->data.insert(std::make_pair("unknownsigner",ConvToStr(0)));
+                       certinfo->data.insert(std::make_pair("trusted",ConvToStr(1)));
+               }
+               else
+               {
+                       certinfo->data.insert(std::make_pair("unknownsigner",ConvToStr(1)));
+                       certinfo->data.insert(std::make_pair("trusted",ConvToStr(0)));
+               }
+
+               certinfo->data.insert(std::make_pair("dn",std::string(X509_NAME_oneline(X509_get_subject_name(cert),0,0))));
+               certinfo->data.insert(std::make_pair("issuer",std::string(X509_NAME_oneline(X509_get_issuer_name(cert),0,0))));
+
+               if (!X509_digest(cert, digest, md, &n))
+               {
+                       certinfo->data.insert(std::make_pair("error","Out of memory generating fingerprint"));
+               }
+               else
+               {
+                       certinfo->data.insert(std::make_pair("fingerprint",irc::hex(md, n)));
+               }
+
+               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"));
+               }
+
+               X509_free(cert);
+       }
 };
 
 class ModuleSSLOpenSSLFactory : public ModuleFactory
@@ -673,7 +849,7 @@ class ModuleSSLOpenSSLFactory : public ModuleFactory
        {
        }
        
-       virtual Module * CreateModule(Server* Me)
+       virtual Module * CreateModule(InspIRCd* Me)
        {
                return new ModuleSSLOpenSSL(Me);
        }