--- /dev/null
+diff -ruN snort-2.9.2.2/autojunk.sh snort-2.9.2.2_bkup/autojunk.sh
+--- snort-2.9.2.2/autojunk.sh 1969-12-31 16:00:00.000000000 -0800
++++ snort-2.9.2.2_bkup/autojunk.sh 2012-04-08 20:34:57.385687022 -0700
+@@ -0,0 +1,7 @@
++#!/bin/sh
++# the list of commands that need to run before we do a compile
++libtoolize --automake --copy
++aclocal -I m4
++autoheader
++automake --add-missing --copy
++autoconf
+diff -ruN snort-2.9.2.2/etc/snort.conf snort-2.9.2.2_bkup/etc/snort.conf
+--- snort-2.9.2.2/etc/snort.conf 2012-03-19 15:57:09.000000000 -0700
++++ snort-2.9.2.2_bkup/etc/snort.conf 2012-04-08 20:34:57.385687022 -0700
+@@ -536,11 +536,38 @@
+ # prelude
+ # output alert_prelude
+
++###################################################
++# snortsam
++###################################################
++# In order to cause Snort to send a blocking request to the SnortSam agent,
++# that agent has to be listed, including the port it listens on,
++# and the encryption key it is using. The statement for that is:
++#
++# output alert_fwsam: {SnortSam Station}:{port}/{password}
++#
++# {SnortSam Station}: IP address or host name of the host where SnortSam is running.
++# {port}: The port the remote SnortSam agent listens on.
++# {password}: The password, or key, used for encryption of the
++# communication to the remote agent.
++#
++# At the very least, the IP address or host name of the host running SnortSam
++# needs to be specified. If the port is omitted, it defaults to TCP port 898.
++# If the password is omitted, it defaults to a preset password.
++# (In which case it needs to be omitted on the SnortSam agent as well)
++#
++# More than one host can be specified, but has to be done on the same line.
++# Just separate them with one or more spaces.
++#
++# Examples:
++#
++# output alert_fwsam: firewall/idspassword
++# output alert_fwsam: fw1.domain.tld:898/mykey
++# output alert_fwsam: 192.168.0.1/borderfw 192.168.1.254/wanfw
++
+ # metadata reference data. do not modify these lines
+ include classification.config
+ include reference.config
+
+-
+ ###################################################
+ # Step #7: Customize your rule set
+ # For more information, see Snort Manual, Writing Snort Rules
+diff -ruN snort-2.9.2.2/src/fatal.h snort-2.9.2.2_bkup/src/fatal.h
+--- snort-2.9.2.2/src/fatal.h 1969-12-31 16:00:00.000000000 -0800
++++ snort-2.9.2.2_bkup/src/fatal.h 2012-04-08 20:34:57.385687022 -0700
+@@ -0,0 +1,40 @@
++/* $Id$ */
++/*
++** Copyright (C) 2002-2008 Sourcefire, Inc.
++** Copyright (C) 1998-2002 Martin Roesch <roesch@sourcefire.com>
++**
++** This program is free software; you can redistribute it and/or modify
++** it under the terms of the GNU General Public License Version 2 as
++** published by the Free Software Foundation. You may not use, modify or
++** distribute this program under any other version of the GNU General
++** Public License.
++**
++** This program is distributed in the hope that it will be useful,
++** but WITHOUT ANY WARRANTY; without even the implied warranty of
++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++** GNU General Public License for more details.
++**
++** You should have received a copy of the GNU General Public License
++** along with this program; if not, write to the Free Software
++** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++*/
++
++#ifndef __FATAL_H__
++#define __FATAL_H__
++
++
++/*
++ * in debugging mode print out the filename and the line number where the
++ * failure have occured
++ */
++
++
++#ifdef DEBUG
++ #define FATAL(msg) { printf("%s:%d: ", __FILE__, __LINE__); FatalError( (char *) msg); }
++#else
++ #define FATAL(msg) FatalError( (char *) msg)
++#endif
++
++
++
++#endif /* __FATAL_H__ */
+diff -ruN snort-2.9.2.2/src/Makefile.am snort-2.9.2.2_bkup/src/Makefile.am
+--- snort-2.9.2.2/src/Makefile.am 2011-10-26 11:28:52.000000000 -0700
++++ snort-2.9.2.2_bkup/src/Makefile.am 2012-04-08 20:34:57.385687022 -0700
+@@ -59,6 +59,7 @@
+ rate_filter.c rate_filter.h \
+ obfuscation.c obfuscation.h \
+ rule_option_types.h \
++twofish.c twofish.h \
+ sfdaq.c sfdaq.h \
+ idle_processing.c idle_processing.h idle_processing_funcs.h
+
+diff -ruN snort-2.9.2.2/src/output-plugins/Makefile.am snort-2.9.2.2_bkup/src/output-plugins/Makefile.am
+--- snort-2.9.2.2/src/output-plugins/Makefile.am 2010-06-09 15:05:17.000000000 -0700
++++ snort-2.9.2.2_bkup/src/output-plugins/Makefile.am 2012-04-08 20:34:57.385687022 -0700
+@@ -15,6 +15,7 @@
+ spo_log_tcpdump.h spo_unified.c spo_unified2.c spo_unified.h spo_unified2.h \
+ spo_log_ascii.c spo_log_ascii.h spo_alert_sf_socket.h spo_alert_sf_socket.c \
+ $(PRELUDE_CODE) spo_alert_arubaaction.c spo_alert_arubaaction.h \
++spo_alert_fwsam.c spo_alert_fwsam.h \
+ spo_alert_test.c spo_alert_test.h
+
+ INCLUDES = @INCLUDES@
+diff -ruN snort-2.9.2.2/src/output-plugins/spo_alert_fwsam.c snort-2.9.2.2_bkup/src/output-plugins/spo_alert_fwsam.c
+--- snort-2.9.2.2/src/output-plugins/spo_alert_fwsam.c 1969-12-31 16:00:00.000000000 -0800
++++ snort-2.9.2.2_bkup/src/output-plugins/spo_alert_fwsam.c 2012-04-08 23:40:57.676343063 -0700
+@@ -0,0 +1,1387 @@
++/* $id: snortpatchb,v 1.2 2002/10/26 03:32:35 fknobbe Exp $
++**
++** spo_alert_fwsam.c
++**
++** Copyright (c) 2001-2004 Frank Knobbe <frank@knobbe.us>
++**
++** This program is free software; you can redistribute it and/or modify
++** it under the terms of the GNU General Public License as published by
++** the Free Software Foundation; either version 2 of the License, or
++** (at your option) any later version.
++**
++** This program is distributed in the hope that it will be useful,
++** but WITHOUT ANY WARRANTY; without even the implied warranty of
++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++** GNU General Public License for more details.
++**
++** You should have received a copy of the GNU General Public License
++** along with this program; if not, write to the Free Software
++** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++*/
++
++/*
++ * Purpose:
++ *
++ * This module sends alerts to a remote service on a host running SnortSam
++ * (the agent) which will block the intruding IP address on a variety of
++ * host and network firewalls.
++ *
++ * SnortSam also performs checks against a white-list of never-to-be-blocked IP addresses,
++ * can override block durations (for example for known proxies), and can detect attack conditions
++ * where too many blocks are received within a defined interval. If an attack is detected
++ * it will unblock the last x blocks and wait for the attack to end.
++ *
++ * See the SnortSam documentation for more information.
++ *
++ *
++ * Output Plugin Parameters:
++ ***************************
++ *
++ * output alert_fwsam: <SnortSam Station>:<port>/<key>
++ *
++ * <FW Mgmt Station>: The IP address or host name of the host running SnortSam.
++ * <port>: The port the remote SnortSam service listens on (default 898).
++ * <key>: The key used for authentication (encryption really)
++ * of the communication to the remote service.
++ *
++ * Examples:
++ *
++ * output alert_fwsam: snortsambox/idspassword
++ * output alert_fwsam: fw1.domain.tld:898/mykey
++ * output alert_fwsam: 192.168.0.1/borderfw 192.168.1.254/wanfw
++ *
++ *
++ * Rule Options:
++ ***************
++ *
++ * fwsam: who[how],time;
++ *
++ * who: src, source, dst, dest, destination
++ * IP address to be blocked according to snort rule (some rules
++ * are reversed, i.e. homenet -> any [and you want to block any]).
++ * src denotes IP to the left of -> and dst denotes IP to the right
++ *
++ * how: Optional. In, out, src, dest, either, both, this, conn, connection
++ * Tells FW-1 to block packets INcoming from host, OUTgoing to host,
++ * EITHERway, or only THIS connection (IP/Service pair).
++ * See 'fw sam' for more information. May be ignored by other plugins.
++ *
++ * time: Duration of block in seconds. (Accepts 'days', 'months', 'weeks',
++ * 'years', 'minutes', 'seconds', 'hours'. Alternatively, a value of
++ * 0, or the keyword PERManent, INFinite, or ALWAYS, will block the
++ * host permanently. Be careful with this!
++ * Tells FW-1 (and others) how long to inhibit packets from the host.
++ *
++ * Examples:
++ *
++ * fwsam: src[either],15min;
++ * or dst[in], 2 days 4 hours
++ * or src, 1 hour
++ *
++ * (default: src[either],5min)
++ *
++ *
++ * Effect:
++ *
++ * Alerts are sent to the remote SnortSam services on Firewall-1 Management Stations
++ * or other hosts running SnortSam (as required for Cisco Routers and PIX).
++ * The remote services will invoke the SAM configuration via the fw sam
++ * command line, or by sending a packet to the SAM port 18183, or by using the official
++ * OPSEC API calls, or by telnetting into Cisco routers or PIX firewalls.
++ * The communication over the network is encrypted using two-fish.
++ * (Implementation ripped from CryptCat by Farm9 with permission.)
++ *
++ * Future Plans:
++ *
++ * - Custom alert trigger per rule (x alerts in y secs) --> Seems to exist in Snort 1.9 now.
++ * - Enable/Allow tagged fwsam: arguments to provide different values to
++ * different stations. --> Seems to be accomplished with custom rule-types
++ *
++ *
++ * Comments:
++ *
++ * It seem that above wishes can be implemented with todays setup. Feedback concerning
++ * these is greatly appreciated.
++ *
++*/
++
++
++#include "spo_alert_fwsam.h"
++#include "twofish.h"
++/* external globals from rules.c */
++extern char *file_name;
++extern int file_line;
++extern OptTreeNode *otn_tmp;
++extern char *snort_conf_dir; /* extern PV pv; */
++
++
++/* my globals */
++
++FWsamList *FWsamStationList=NULL; /* Global (for all alert-types) list of snortsam stations */
++FWsamOptions *FWsamOptionField=NULL;
++unsigned long FWsamMaxOptions=0;
++
++
++/*
++ * Function: AlertFWsamSetup()
++ *
++ * Purpose: Registers the output plugin keyword and initialization
++ * function into the output plugin list. This is the function that
++ * gets called from InitOutputPlugins() in plugbase.c.
++ * It also registers itself as a plugin in order to parse every rule
++ * and to set the appropiate flags from fwsam: option.
++ *
++ * Arguments: None.
++ *
++ * Returns: void function
++ *
++*/
++void AlertFWsamSetup(void)
++{
++ /* link the preprocessor keyword to the init function in the preproc list */
++ RegisterOutputPlugin("alert_fwsam", OUTPUT_TYPE_FLAG__ALERT, AlertFWsamInit);
++ RegisterRuleOption("fwsam", AlertFWsamOptionInit, NULL, OPT_TYPE_ACTION, NULL);
++
++#ifdef FWSAMDEBUG /* This allows debugging of fwsam only */
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamSetup) Output plugin is plugged in...\n");
++#endif
++}
++
++
++/* This function checks if a given snortsam station is already in
++ * a given list.
++*/
++int FWsamStationExists(FWsamStation *who,FWsamList *list)
++{
++ while(list)
++ {
++ if(list->station) {
++// if( who->stationip.s_addr==list->station->stationip.s_addr &&
++ if(IP_EQUALITY(&who->stationip, &list->station->stationip) &&
++ who->stationport==list->station->stationport)
++ return TRUE;
++ }
++ list=list->next;
++ }
++ return FALSE;
++}
++
++/*
++ * Function: AlertFWsamInit(char *args)
++ *
++ * Purpose: Calls the argument parsing function, performs final setup on data
++ * structs, links the preproc function into the function list.
++ *
++ * Arguments: args => ptr to argument string
++ *
++ * Returns: void function
++ *
++*/
++void AlertFWsamInit(char *args)
++{ char *ap;
++ unsigned long statip,cnt,again,i;
++ char *stathost,*statport,*statpass;
++ FWsamStation *station;
++ FWsamList *fwsamlist=NULL; /* alert-type dependent list of snortsam stations */
++ FWsamList *listp,*newlistp;
++ struct hostent *hoste;
++ char buf[1024]="";
++ FILE *fp;
++ FWsamOptions tempopt;
++
++#ifdef FWSAMDEBUG
++ unsigned long hostcnt=0;
++
++
++
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamInit) Output plugin initializing...\n");
++#endif
++
++ /* pv.alert_plugin_active = 1; */
++
++ /* parse the argument list from the rules file */
++
++ if(args == NULL)
++ FatalError("ERROR %s (%d) => [Alert_FWsam](AlertFWsamInit) No arguments to alert_fwsam preprocessor!\n", file_name, file_line);
++
++ if(!FWsamOptionField && !FWsamMaxOptions)
++ { strncpy(buf,snort_conf_dir,sizeof(buf)-1);
++ strncpy(buf+strlen(buf),SID_MAPFILE,sizeof(buf)-strlen(buf)-1);
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamSetup) Using file: %s\n",buf);
++#endif
++ fp=fopen(buf,"rt");
++ if(!fp)
++ { strncpy(buf,snort_conf_dir,sizeof(buf)-1);
++ strncpy(buf+strlen(buf),SID_ALT_MAPFILE,sizeof(buf)-strlen(buf)-1);
++ fp=fopen(buf,"rt");
++ }
++ if(fp) /* Check for presence of map file and read those in, sorted. */
++ { LogMessage("INFO => [Alert_FWsam](AlertFWsamSetup) Using sid-map file: %s\n",buf);
++
++ while(FWsamReadLine(buf,sizeof(buf),fp))
++ if(*buf)
++ FWsamMaxOptions++;
++ if(FWsamMaxOptions)
++ { if((FWsamOptionField=(FWsamOptions *)malloc(sizeof(FWsamOptions)*FWsamMaxOptions))==NULL)
++ FatalError("ERROR => [Alert_FWsam](AlertFWsamSetup) malloc failed for OptionField!\n");
++ fseek(fp,0,SEEK_SET);
++ for(cnt=0;cnt<FWsamMaxOptions;)
++ { FWsamReadLine(buf,sizeof(buf),fp);
++ if(*buf)
++ FWsamParseLine(&(FWsamOptionField[cnt++]),buf);
++ }
++ if(FWsamMaxOptions>1)
++ { for(again=TRUE,cnt=FWsamMaxOptions-1;cnt>=1 && again;cnt--)
++ { for(again=FALSE,i=0;i<cnt;i++)
++ { if(FWsamOptionField[i].sid>FWsamOptionField[i+1].sid)
++ { memcpy(&tempopt,&(FWsamOptionField[i]),sizeof(FWsamOptions));
++ memcpy(&(FWsamOptionField[i]),&(FWsamOptionField[i+1]),sizeof(FWsamOptions));
++ memcpy(&(FWsamOptionField[i+1]),&tempopt,sizeof(FWsamOptions));
++ again=TRUE;
++ }
++ }
++ }
++ }
++ }
++ else
++ FWsamMaxOptions=1;
++ fclose(fp);
++ }
++ else
++ FWsamMaxOptions=1;
++ }
++
++
++ ap=args; /* start at the beginning of the argument */
++ while(*ap && isspace(*ap)) ap++;
++ while(*ap)
++ { stathost=ap; /* first argument should be host */
++ statport=NULL;
++ statpass=NULL;
++ while(*ap && *ap!=':' && *ap!='/' && !isspace(*ap)) ap++; /* find token */
++ switch(*ap)
++ { case ':': *ap++=0; /* grab the port */
++ statport=ap;
++ while(*ap && *ap!='/' && !isspace(*ap)) ap++;
++ if(*ap!='/')
++ break;
++ case '/': *ap++=0; /* grab the key */
++ statpass=ap;
++ while(*ap && !isspace(*ap)) ap++;
++ default: break;
++ }
++ if(*ap)
++ { *ap++=0;
++ while(isspace(*ap)) ap++;
++ }
++ /* now we have the first host with port and password (key) */
++ /* next we check for valid/blank password/port */
++ if(statpass!=NULL)
++ if(!*statpass)
++ statpass=NULL;
++ if(statport!=NULL)
++ if(!*statport)
++ statport=NULL;
++ statip=0;
++ /* now we check if a valid host was specified */
++ if(inet_addr(stathost)==INADDR_NONE)
++ { hoste=gethostbyname(stathost);
++ if (!hoste)
++ LogMessage("WARNING %s (%d) => [Alert_FWsam](AlertFWsamInit) Unable to resolve host '%s'!\n",file_name,file_line,stathost);
++ else
++ statip=*(unsigned long *)hoste->h_addr;
++ }
++ else
++ { statip=inet_addr(stathost);
++ if(!statip)
++ LogMessage("WARNING %s (%d) => [Alert_FWsam](AlertFWsamInit) Invalid host address '%s'!\n",file_name,file_line,stathost);
++ }
++ if(statip)
++ { /* groovie, a valid host. Let's alloc and assemble the structure for it. */
++ if((station=(FWsamStation *)malloc(sizeof(FWsamStation)))==NULL)
++ FatalError("ERROR => [Alert_FWsam](AlertFWsamInit) malloc failed for station!\n");
++
++// station->stationip.s_addr=statip; /* the IP address */
++ station->stationip.ip32[0] = statip; /* the IP address */
++ if(statport!=NULL && atoi(statport)>0) /* if the user specified one */
++ station->stationport=atoi(statport); /* use users setting */
++ else
++ station->stationport=FWSAM_DEFAULTPORT; /* set the default port */
++
++ if(statpass!=NULL) /* if specified by user */
++ strncpy(station->stationkey,statpass,TwoFish_KEY_LENGTH); /* use defined key */
++ else
++ station->stationkey[0]=0;
++ station->stationkey[TwoFish_KEY_LENGTH]=0; /* make sure it's terminated. (damn strncpy...) */
++
++ strcpy(station->initialkey,station->stationkey);
++ station->stationfish=TwoFishInit(station->stationkey);
++
++ station->localsocketaddr.sin_port=htons(0); /* let's use dynamic ports for now */
++ station->localsocketaddr.sin_addr.s_addr=0;
++ station->localsocketaddr.sin_family=AF_INET;
++ station->stationsocketaddr.sin_port=htons(station->stationport);
++ //station->stationsocketaddr.sin_addr=station->stationip;
++ station->stationsocketaddr.sin_addr.s_addr=station->stationip.ip32[0];
++ station->stationsocketaddr.sin_family=AF_INET; /* load all socket crap and keep for later */
++
++ do
++ station->myseqno=rand(); /* the seqno this host will use */
++ while(station->myseqno<20 || station->myseqno>65500);
++ station->mykeymod[0]=rand();
++ station->mykeymod[1]=rand();
++ station->mykeymod[2]=rand();
++ station->mykeymod[3]=rand();
++ station->stationseqno=0; /* peer hasn't answered yet. */
++
++
++ if(!FWsamStationExists(station,FWsamStationList)) /* If we don't have the station already in global list....*/
++ { if(FWsamCheckIn(station)) /* ...and we can talk to the agent... */
++ { if((newlistp=(FWsamList *)malloc(sizeof(FWsamList)))==NULL)
++ FatalError("ERROR => [Alert_FWsam](AlertFWsamInit) malloc failed for global newlistp!\n");
++ newlistp->station=station;
++ newlistp->next=NULL;
++
++ if(!FWsamStationList) /* ... add it to the global list/ */
++ FWsamStationList=newlistp;
++ else
++ { listp=FWsamStationList;
++ while(listp->next)
++ listp=listp->next;
++ listp->next=newlistp;
++ }
++ }
++ else
++ { TwoFishDestroy(station->stationfish); /* if not, we trash it. */
++ free(station);
++ station=NULL;
++ }
++ }
++#ifdef FWSAMDEBUG
++ else
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamInit) Host %s:%i already in global list, skipping CheckIn.\n", sfip_ntoa(&station->stationip),station->stationport);
++#endif
++
++ if(station)
++ { if(!FWsamStationExists(station,fwsamlist)) /* If we don't have the station already in local list....*/
++ { if((newlistp=(FWsamList *)malloc(sizeof(FWsamList)))==NULL)
++ FatalError("ERROR => [Alert_FWsam](AlertFWsamInit) malloc failed for local newlistp!\n");
++ newlistp->station=station;
++ newlistp->next=NULL;
++
++ if(!fwsamlist) /* ... add it to the local list/ */
++ fwsamlist=newlistp;
++ else
++ { listp=fwsamlist;
++ while(listp->next)
++ listp=listp->next;
++ listp->next=newlistp;
++ }
++ }
++
++#ifdef FWSAMDEBUG
++ else
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamInit) Host %s:%i already in local list, skipping.\n",sfip_ntoa(&station->stationip),station->stationport);
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamInit) #%i: Host %s [%s] port %i password %s\n",++hostcnt,stathost,sfip_ntoa(&station->stationip),station->stationport,station->stationkey);
++#endif
++ }
++
++ }
++ } /* next one */
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamInit) Linking fwsam alert function to call list...\n");
++#endif
++
++ /* Set the preprocessor function into the function list */
++ AddFuncToOutputList(AlertFWsam, OUTPUT_TYPE_FLAG__ALERT, fwsamlist);
++ AddFuncToCleanExitList(AlertFWsamCleanExitFunc, fwsamlist);
++
++/*
++* This ifdef function reloads snortsam config/list on SIG HUP
++* 04082012 RZ
++*/
++#ifdef SNORT_RELOAD
++ AddFuncToReloadList(AlertFWsamRestartFunc, fwsamlist);
++#endif
++
++}
++
++
++/* This routine reads in a str from a file, snips white-spaces
++ * off the front and back, removes comments, and pretties the
++ * string. Returns true or false if a line was read or not.
++*/
++int FWsamReadLine(char *buf,unsigned long bufsize,FILE *fp)
++{ char *p;
++
++ if(fgets(buf,bufsize-1,fp))
++ { buf[bufsize-1]=0;
++
++#ifdef FWSAMDEBUG_off
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamReadLine) Line: %s\n",buf);
++#endif
++
++ p=buf;
++ while(isspace(*p))
++ p++;
++ if(p>buf);
++ strcpy(buf,p);
++ if(*buf)
++ { p=buf+strlen(buf)-1; /* remove leading and trailing spaces */
++ while(isspace(*p))
++ *p-- =0;
++ }
++ p=buf;
++ if(*p=='#' || *p==';')
++ *p=0;
++ else
++ p++;
++ while(*p) /* remove inline comments (except escaped #'s and ;'s) */
++ { if(*p=='#' || *p==';')
++ { if(*(p-1)=='\\')
++ strcpy(p-1,p);
++ else
++ *p=0;
++ }
++ else
++ p++;
++ }
++ return TRUE;
++ }
++ return FALSE;
++}
++
++
++/* Parses the duration of the argument, recognizing minutes, hours, etc..
++*/
++unsigned long FWsamParseDuration(char *p)
++{ unsigned long dur=0,tdu;
++ char *tok,c1,c2;
++
++ while(*p)
++ { tok=p;
++ while(*p && isdigit(*p))
++ p++;
++ if(*p)
++ { c1=tolower(*p);
++ *p=0;
++ p++;
++ if(*p && !isdigit(*p))
++ { c2=tolower(*p++);
++ while(*p && !isdigit(*p))
++ p++;
++ }
++ else
++ c2=0;
++ tdu=atol(tok);
++ switch(c1)
++ { case 'm': if(c2=='o') /* month */
++ tdu*=(60*60*24*30); /* use 30 days */
++ else
++ tdu*=60; /* minutes */
++ case 's': break; /* seconds */
++ case 'h': tdu*=(60*60); /* hours */
++ break;
++ case 'd': tdu*=(60*60*24); /* days */
++ break;
++ case 'w': tdu*=(60*60*24*7); /* week */
++ break;
++ case 'y': tdu*=(60*60*24*365); /* year */
++ break;
++ }
++ dur+=tdu;
++ }
++ else
++ dur+=atol(tok);
++ }
++
++ return dur;
++}
++
++
++/* This routine parses an option line. It is called by FWsamParseLine,
++ * which parses the sid-block.map file, and also by AlertFWsamOptionInit,
++ * which is called by Snort when processing fwsam: options in rules.
++ * It returns TRUE it there is a possible option problem, otherwise FALSE.
++*/
++int FWsamParseOption(FWsamOptions *optp,char *ap)
++{ int possprob=FALSE;
++
++ /* set defaults */
++
++ optp->duration=300; /* default of 5 minute block */
++ optp->how=FWSAM_HOW_INOUT; /* inbound and outbound block */
++ optp->who=FWSAM_WHO_SRC; /* the source */
++ optp->loglevel=FWSAM_LOG_LONGALERT; /* the log level default */
++ /* parse the fwsam keywords */
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWamOptionInit) Parse Options Args: %s\n",ap);
++#endif
++
++ if(*ap) /* should be dst/src (the WHO) or duration */
++ { if(isdigit(*ap))
++ optp->duration=FWsamParseDuration(ap);
++ else
++ { switch(*ap) /* yeah, we're lazy and check only the first character */
++ { case 'p': ; /* permanent, perm */
++ case 'f': ; /* forever */
++ case 'i': optp->duration=0; /* infinite, inf */
++ break;
++ case 'd': optp->who=FWSAM_WHO_DST; /* destination, dest, dst */
++ break;
++ case 's': optp->who=FWSAM_WHO_SRC; /* source, src */
++ break;
++ default: possprob=TRUE;
++ }
++ while(*ap && *ap!=',' && *ap!='[')
++ ap++;
++ if(*ap=='[')
++ { ap++; /* now we have the HOW */
++ switch(*ap)
++ { case 'i': ; /* in */
++ case 's': optp->how=FWSAM_HOW_IN; /* source, src */
++ break;
++ case 'o': ; /* out */
++ case 'd': optp->how=FWSAM_HOW_OUT; /* destination, dest, dst */
++ break;
++ case 'b': ; /* both */
++ case 'e': optp->how=FWSAM_HOW_INOUT; /* either */
++ break;
++ case 't': ; /* this */
++ case 'c': optp->how=FWSAM_HOW_THIS; /* connection, conn */
++ break;
++ default: possprob=TRUE;
++ }
++ while(*ap && *ap!=',')
++ ap++;
++ }
++ if(*ap==',')
++ { ap++;
++ if(isdigit(*ap)) /* and figure out how long to block */
++ optp->duration=FWsamParseDuration(ap);
++ else if(*ap=='p' || *ap=='f' || *ap=='i')
++ optp->duration=0;
++ else
++ possprob=TRUE;
++ }
++ else if(!*ap)
++ possprob=TRUE;
++ }
++ }
++ else
++ possprob=TRUE;
++
++ return possprob;
++}
++
++
++/* This goes through the lines of sid-block.map and sets the
++ * options for fwsam if the file is being used.
++*/
++void FWsamParseLine(FWsamOptions *optp,char *buf)
++{ char *ap;
++
++ ap=buf; /* start at the beginning of the argument */
++
++ while(*ap)
++ { if(isspace(*ap)) /* normalize spaces (tabs into space, etc) */
++ *ap=' ';
++ if(isupper(*ap)) /* and set to lower case */
++ *ap=tolower(*ap);
++ ap++;
++ }
++ while((ap=strrchr(buf,' '))!=NULL) /* remove spaces */
++ strcpy(ap,ap+1);
++
++ ap=buf;
++ if(*ap)
++ { while(*ap && *ap!=':' && *ap!='|')
++ ap++;
++ *ap++ =0;
++ while(*ap && (*ap==':' || *ap=='|'))
++ ap++;
++
++ optp->sid=(unsigned long)atol(buf);
++
++ if(FWsamParseOption(optp,ap))
++ LogMessage("WARNING %s (%d) => [Alert_FWsam](AlertFWamOptionInit) Possible option problem. Using %s[%s],%lu.\n",file_name,file_line,(optp->who==FWSAM_WHO_SRC)?"src":"dst",(optp->how==FWSAM_HOW_IN)?"in":((optp->how==FWSAM_HOW_OUT)?"out":"either"),optp->duration);
++ }
++ else
++ optp->sid=0;
++}
++
++
++
++/*
++ * Function: AlertFWsamOptionInit(char *data, OptTreeNode *otn, int protocol)
++ *
++ * Purpose: Parses each rule and sets the option flags in the tree.
++ *
++ * Arguments: args => ptr to argument string
++ *
++ * Returns: void function
++ *
++*/
++void AlertFWsamOptionInit(char *args,OptTreeNode *otn,int protocol)
++{
++ FWsamOptions *optp;
++ char *ap;
++
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWamOptionInit) FWsamOptionInit is parsing...\n");
++#endif
++
++ if((optp=(FWsamOptions *)malloc(sizeof(FWsamOptions)))==NULL)
++ FatalError("ERROR => [Alert_FWsam](AlertFWamOptionInit) malloc failed for opt!\n");
++
++
++ ap=args; /* start at the beginning of the argument */
++
++ while(*ap)
++ { if(isspace(*ap)) /* normalize spaces (tabs into space, etc) */
++ *ap=' ';
++ if(isupper(*ap)) /* and set to lower case */
++ *ap=tolower(*ap);
++ ap++;
++ }
++ while((ap=strrchr(args,' '))!=NULL) /* remove spaces */
++ strcpy(ap,ap+1);
++
++
++ if(FWsamParseOption(optp,args))
++ LogMessage("WARNING %s (%d) => [Alert_FWsam](AlertFWamOptionInit) Possible option problem. Using %s[%s],%lu.\n",file_name,file_line,(optp->who==FWSAM_WHO_SRC)?"src":"dst",(optp->how==FWSAM_HOW_IN)?"in":((optp->how==FWSAM_HOW_OUT)?"out":"either"),optp->duration);
++
++ otn->ds_list[PLUGIN_FWSAM]=(FWsamOptions *)optp;
++}
++
++
++/* Generates a new encryption key for TwoFish based on seq numbers and a random that
++ * the SnortSam agents send on checkin (in protocol)
++*/
++void FWsamNewStationKey(FWsamStation *station,FWsamPacket *packet)
++{
++ //unsigned char newkey[TwoFish_KEY_LENGTH+2];
++ char newkey[TwoFish_KEY_LENGTH+2];
++ int i;
++
++ newkey[0]=packet->snortseqno[0]; /* current snort seq # (which both know) */
++ newkey[1]=packet->snortseqno[1];
++ newkey[2]=packet->fwseqno[0]; /* current SnortSam seq # (which both know) */
++ newkey[3]=packet->fwseqno[1];
++ newkey[4]=packet->protocol[0]; /* the random SnortSam chose */
++ newkey[5]=packet->protocol[1];
++
++ strncpy(newkey+6,station->stationkey,TwoFish_KEY_LENGTH-6); /* append old key */
++ newkey[TwoFish_KEY_LENGTH]=0;
++
++ newkey[0]^=station->mykeymod[0]; /* modify key with key modifiers which were */
++ newkey[1]^=station->mykeymod[1]; /* exchanged during the check-in handshake. */
++ newkey[2]^=station->mykeymod[2];
++ newkey[3]^=station->mykeymod[3];
++ newkey[4]^=station->fwkeymod[0];
++ newkey[5]^=station->fwkeymod[1];
++ newkey[6]^=station->fwkeymod[2];
++ newkey[7]^=station->fwkeymod[3];
++
++ for(i=0;i<=7;i++)
++ if(newkey[i]==0)
++ newkey[i]++;
++
++ strcpy(station->stationkey,newkey);
++ TwoFishDestroy(station->stationfish);
++ station->stationfish=TwoFishInit(newkey);
++}
++
++
++/* This routine will search the option list as defined
++ * by the sid-block.map file and return a pointer
++ * to the matching record.
++*/
++FWsamOptions *FWsamGetOption(unsigned long sid)
++{ signed long i,step,diff,o,o2;
++
++#ifdef FWSAM_FANCYFETCH /* Fancy-fetch jumps in decreasing n/2 steps and takes much less lookups */
++ o=o2= -1;
++ i=step=FWsamMaxOptions>>1;
++ while(i>=0 && i<FWsamMaxOptions && i!=o2)
++ { diff=sid-FWsamOptionField[i].sid;
++ if(!diff)
++ return &(FWsamOptionField[i]);
++ if(step>1)
++ step=step>>1;
++ o2=o;
++ o=i;
++ if(diff>0)
++ i+=step;
++ else
++ i-=step;
++ }
++#else /* This is just a sequential list lookup */
++ for(i=0;i<FWsamMaxOptions;i++)
++ if(FWsamOptionField[i].sid==sid)
++ return &(FWsamOptionField[i]);
++#endif
++ return NULL;
++}
++
++
++/****************************************************************************
++ *
++ * Function: AlertFWsam(Packet *, char *)
++ *
++ * Purpose: Send the current alert to a remote module on a FW-1 mgmt station
++ *
++ * Arguments: p => pointer to the packet data struct
++ * msg => the message to print in the alert
++ *
++ * Returns: void function
++ *
++ ***************************************************************************/
++void AlertFWsam(Packet *p, char *msg, void *arg, Event *event)
++{ FWsamOptions *optp;
++ FWsamPacket sampacket;
++ FWsamStation *station=NULL;
++ FWsamList *fwsamlist;
++ SOCKET stationsocket;
++ int i,len,deletestation,stationtry=0;
++ //unsigned char *encbuf,*decbuf;
++ char *encbuf,*decbuf;
++ static unsigned long lastbsip[FWSAM_REPET_BLOCKS],lastbdip[FWSAM_REPET_BLOCKS],
++ lastbduration[FWSAM_REPET_BLOCKS],lastbtime[FWSAM_REPET_BLOCKS];
++ static unsigned short lastbsp[FWSAM_REPET_BLOCKS],lastbdp[FWSAM_REPET_BLOCKS],
++ lastbproto[FWSAM_REPET_BLOCKS],lastbpointer;
++ static unsigned char lastbmode[FWSAM_REPET_BLOCKS];
++ static unsigned long btime=0;
++
++
++ if(otn_tmp==NULL)
++ {
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] NULL otn_tmp!\n");
++#endif
++ return;
++ }
++ if(p == NULL)
++ {
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] NULL packet!\n");
++#endif
++ return;
++ }
++ if(arg == NULL)
++ {
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] NULL arg!\n");
++#endif
++ return;
++ }
++
++ /* SnortSam does no IPv6 */
++ if (!IS_IP4(p)) {
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] not acting on non-IP4 packet!\n");
++#endif
++ return;
++ }
++
++ optp=NULL;
++
++ if(FWsamOptionField) /* If using the file (field present), let's use that */
++ optp=FWsamGetOption(event->sig_id);
++
++ if(!optp) /* If file not present, check if an fwsam option was defined on the triggering rule */
++ optp=otn_tmp->ds_list[PLUGIN_FWSAM];
++
++ if(optp) /* if options specified for this rule */
++ { if(!btime) /* if this is the first time this function is */
++ { for(i=0;i<FWSAM_REPET_BLOCKS;i++) /* called, reset the time and protocol to 0. */
++ { lastbproto[i]=0;
++ lastbtime[i]=0;
++ }
++ }
++
++ fwsamlist=(FWsamList *)arg;
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] Alert -> Msg=\"%s\"\n",msg);
++
++ LogMessage("DEBUG => [Alert_FWsam] Alert -> Option: %s[%s],%lu.\n",(optp->who==FWSAM_WHO_SRC)?"src":"dst",(optp->how==FWSAM_HOW_IN)?"in":((optp->how==FWSAM_HOW_OUT)?"out":"either"),optp->duration);
++#endif
++
++ len=TRUE;
++ btime=(unsigned long)time(NULL); /* get current time */
++ /* This is a cheap check to see if the blocking request matches any of the previous requests. */
++ for(i=0;i<FWSAM_REPET_BLOCKS && len;i++)
++ { if( ((optp->how==FWSAM_HOW_THIS)? /* if blocking mode SERVICE, check for src and dst */
++ ( lastbsip[i]==p->iph->ip_src.s_addr && lastbdip[i]==p->iph->ip_dst.s_addr &&lastbproto[i]==p->iph->ip_proto &&
++ ((p->iph->ip_proto==IPPROTO_TCP || p->iph->ip_proto==IPPROTO_UDP)? /* check port only of TCP or UDP */
++/* ((optp->who==FWSAM_WHO_SRC)?(lastbsp[i]==p->sp):(lastbdp[i]==p->dp)):TRUE) ): */
++ lastbdp[i]==p->dp:TRUE) ):
++ ((optp->who==FWSAM_WHO_SRC)?(lastbsip[i]==p->iph->ip_src.s_addr):(lastbdip[i]==p->iph->ip_dst.s_addr))) && /* otherwise if we block source, only compare source. Same for dest. */
++ lastbduration[i]==optp->duration &&
++ (lastbmode[i]&(FWSAM_HOW|FWSAM_WHO))==(optp->how|optp->who) &&
++ (btime-lastbtime[i]<((optp->duration>FWSAM_REPET_TIME)?FWSAM_REPET_TIME:optp->duration)))
++ { len=FALSE; /* If so, we don't need to block again. */
++ }
++ }
++ if(len)
++ { if(++lastbpointer>=FWSAM_REPET_BLOCKS) /* increase repetitive check pointer */
++ lastbpointer=0;
++ lastbsip[lastbpointer]=p->iph->ip_src.s_addr; /* and note packet details */
++ lastbdip[lastbpointer]=p->iph->ip_dst.s_addr;
++ lastbduration[lastbpointer]=optp->duration;
++ lastbmode[lastbpointer]=optp->how|optp->who|optp->loglevel;
++ lastbproto[lastbpointer]=p->iph->ip_proto;
++ if(p->iph->ip_proto==IPPROTO_TCP || p->iph->ip_proto==IPPROTO_UDP)
++ { lastbsp[lastbpointer]=p->sp; /* set ports if TCP or UDP */
++ lastbdp[lastbpointer]=p->dp;
++ }
++ lastbtime[lastbpointer]=btime;
++
++
++ while(fwsamlist!=NULL)
++ { station=fwsamlist->station;
++ //if(station->stationip.s_addr)
++ if(station->stationip.ip32[0])
++ { deletestation=FALSE;
++ stationtry++; /* first try */
++ /* create a socket for the station */
++ stationsocket=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
++ if(stationsocket==INVALID_SOCKET)
++ FatalError("ERROR => [Alert_FWsam] Funky socket error (socket)!\n");
++ if(bind(stationsocket,(struct sockaddr *)&(station->localsocketaddr),sizeof(struct sockaddr)))
++ FatalError("ERROR => [Alert_FWsam] Could not bind socket!\n");
++
++ /* let's connect to the agent */
++ if(connect(stationsocket,(struct sockaddr *)&station->stationsocketaddr,sizeof(struct sockaddr)))
++ {
++ LogMessage("WARNING => [Alert_FWsam] Could not send block to host %s. Will try later.\n",sfip_ntoa(&station->stationip));
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ stationtry=0;
++ }
++ else
++ {
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] Connected to host %s.\n",sfip_ntoa(&station->stationip));
++#endif
++ /* now build the packet */
++ station->myseqno+=station->stationseqno; /* increase my seqno by adding agent seq no */
++ sampacket.endiancheck=1; /* This is an endian indicator for Snortsam */
++ sampacket.snortseqno[0]=(char)station->myseqno;
++ sampacket.snortseqno[1]=(char)(station->myseqno>>8);
++ sampacket.fwseqno[0]=(char)station->stationseqno;/* fill station seqno */
++ sampacket.fwseqno[1]=(char)(station->stationseqno>>8);
++ sampacket.status=FWSAM_STATUS_BLOCK; /* set block mode */
++ sampacket.version=FWSAM_PACKETVERSION; /* set packet version */
++ sampacket.duration[0]=(char)optp->duration; /* set duration */
++ sampacket.duration[1]=(char)(optp->duration>>8);
++ sampacket.duration[2]=(char)(optp->duration>>16);
++ sampacket.duration[3]=(char)(optp->duration>>24);
++ sampacket.fwmode=optp->how|optp->who|optp->loglevel; /* set the mode */
++ sampacket.dstip[0]=(char)p->iph->ip_dst.s_addr; /* destination IP */
++ sampacket.dstip[1]=(char)(p->iph->ip_dst.s_addr>>8);
++ sampacket.dstip[2]=(char)(p->iph->ip_dst.s_addr>>16);
++ sampacket.dstip[3]=(char)(p->iph->ip_dst.s_addr>>24);
++ sampacket.srcip[0]=(char)p->iph->ip_src.s_addr; /* source IP */
++ sampacket.srcip[1]=(char)(p->iph->ip_src.s_addr>>8);
++ sampacket.srcip[2]=(char)(p->iph->ip_src.s_addr>>16);
++ sampacket.srcip[3]=(char)(p->iph->ip_src.s_addr>>24);
++ sampacket.protocol[0]=(char)p->iph->ip_proto; /* protocol */
++ sampacket.protocol[1]=(char)(p->iph->ip_proto>>8);/* protocol */
++
++ if(p->iph->ip_proto==IPPROTO_TCP || p->iph->ip_proto==IPPROTO_UDP)
++ { sampacket.srcport[0]=(char)p->sp; /* set ports */
++ sampacket.srcport[1]=(char)(p->sp>>8);
++ sampacket.dstport[0]=(char)p->dp;
++ sampacket.dstport[1]=(char)(p->dp>>8);
++ }
++ else
++ sampacket.srcport[0]=sampacket.srcport[1]=sampacket.dstport[0]=sampacket.dstport[1]=0;
++
++ sampacket.sig_id[0]=(char)event->sig_id; /* set signature ID */
++ sampacket.sig_id[1]=(char)(event->sig_id>>8);
++ sampacket.sig_id[2]=(char)(event->sig_id>>16);
++ sampacket.sig_id[3]=(char)(event->sig_id>>24);
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] Sending BLOCK\n");
++ LogMessage("DEBUG => [Alert_FWsam] Snort SeqNo: %x\n",station->myseqno);
++ LogMessage("DEBUG => [Alert_FWsam] Mgmt SeqNo : %x\n",station->stationseqno);
++ LogMessage("DEBUG => [Alert_FWsam] Status : %i\n",FWSAM_STATUS_BLOCK);
++ LogMessage("DEBUG => [Alert_FWsam] Mode : %i\n",optp->how|optp->who|optp->loglevel);
++ LogMessage("DEBUG => [Alert_FWsam] Duration : %li\n",optp->duration);
++ LogMessage("DEBUG => [Alert_FWsam] Protocol : %i\n",GET_IPH_PROTO(p));
++#ifdef SUP_IP6
++ LogMessage("DEBUG => [Alert_FWsam] Src IP : %s\n",sfip_ntoa(GET_SRC_IP(p)));
++ LogMessage("DEBUG => [Alert_FWsam] Dest IP : %s\n",sfip_ntoa(GET_DST_IP(p)));
++#else
++ LogMessage("DEBUG => [Alert_FWsam] Src IP : %s\n",inet_ntoa(p->iph->ip_src));
++ LogMessage("DEBUG => [Alert_FWsam] Dest IP : %s\n",inet_ntoa(p->iph->ip_dst));
++#endif
++ LogMessage("DEBUG => [Alert_FWsam] Src Port : %i\n",p->sp);
++ LogMessage("DEBUG => [Alert_FWsam] Dest Port : %i\n",p->dp);
++ LogMessage("DEBUG => [Alert_FWsam] Sig_ID : %lu\n",event->sig_id);
++
++#endif
++
++ encbuf=TwoFishAlloc(sizeof(FWsamPacket),FALSE,FALSE,station->stationfish); /* get the encryption buffer */
++ len=TwoFishEncrypt((char *)&sampacket,&encbuf,sizeof(FWsamPacket),FALSE,station->stationfish); /* encrypt the packet with current key */
++
++ if(send(stationsocket,encbuf,len,0)!=len) /* weird...could not send */
++ { LogMessage("WARNING => [Alert_FWsam] Could not send to host %s. Will try again later.\n",sfip_ntoa(&station->stationip));
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ stationtry=0;
++ }
++ else
++ { i=FWSAM_NETWAIT;
++#ifdef WIN32
++ ioctlsocket(stationsocket,FIONBIO,&i); /* set non blocking and wait for */
++#else
++ ioctl(stationsocket,FIONBIO,&i); /* set non blocking and wait for */
++#endif
++ while(i-- >1) /* the response packet */
++ { waitms(10); /* wait for response (default maximum 3 secs */
++ if(recv(stationsocket,encbuf,len,0)==len)
++ i=0; /* if we received packet we set the counter to 0. */
++ /* by the time we check with if, it's already dec'ed to -1 */
++ }
++ if(!i) /* id we timed out (i was one, then dec'ed)... */
++ { LogMessage("WARNING => [Alert_FWsam] Did not receive response from host %s. Will try again later.\n",sfip_ntoa(&station->stationip));
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ stationtry=0;
++ }
++ else /* got a packet */
++ { decbuf=(char *)&sampacket; /* get the pointer to the packet struct */
++ len=TwoFishDecrypt(encbuf,&decbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,FALSE,station->stationfish); /* try to decrypt the packet with current key */
++
++ if(len!=sizeof(FWsamPacket)) /* invalid decryption */
++ { strcpy(station->stationkey,station->initialkey); /* try the intial key */
++ TwoFishDestroy(station->stationfish);
++ station->stationfish=TwoFishInit(station->stationkey); /* re-initialize the TwoFish with the intial key */
++ len=TwoFishDecrypt(encbuf,&decbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,FALSE,station->stationfish); /* try again to decrypt */
++ LogMessage("INFO => [Alert_FWsam] Had to use initial key!\n");
++ }
++ if(len==sizeof(FWsamPacket)) /* valid decryption */
++ { if(sampacket.version==FWSAM_PACKETVERSION)/* master speaks my language */
++ { if(sampacket.status==FWSAM_STATUS_OK || sampacket.status==FWSAM_STATUS_NEWKEY
++ || sampacket.status==FWSAM_STATUS_RESYNC || sampacket.status==FWSAM_STATUS_HOLD)
++ { station->stationseqno=sampacket.fwseqno[0] | (sampacket.fwseqno[1]<<8); /* get stations seqno */
++ station->lastcontact=(unsigned long)time(NULL); /* set the last contact time (not used yet) */
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] Received %s\n",sampacket.status==FWSAM_STATUS_OK?"OK":
++ sampacket.status==FWSAM_STATUS_NEWKEY?"NEWKEY":
++ sampacket.status==FWSAM_STATUS_RESYNC?"RESYNC":
++ sampacket.status==FWSAM_STATUS_HOLD?"HOLD":"ERROR");
++ LogMessage("DEBUG => [Alert_FWsam] Snort SeqNo: %x\n",sampacket.snortseqno[0]|(sampacket.snortseqno[1]<<8));
++ LogMessage("DEBUG => [Alert_FWsam] Mgmt SeqNo : %x\n",station->stationseqno);
++ LogMessage("DEBUG => [Alert_FWsam] Status : %i\n",sampacket.status);
++ LogMessage("DEBUG => [Alert_FWsam] Version : %i\n",sampacket.version);
++#endif
++ if(sampacket.status==FWSAM_STATUS_HOLD)
++ { i=FWSAM_NETHOLD; /* Stay on hold for a maximum of 60 secs (default) */
++ while(i-- >1) /* the response packet */
++ { waitms(10); /* wait for response */
++ if(recv(stationsocket,encbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,0)==sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE)
++ i=0; /* if we received packet we set the counter to 0. */
++ }
++ if(!i) /* id we timed out (i was one, then dec'ed)... */
++ { LogMessage("WARNING => [Alert_FWsam] Did not receive response from host %s. Will try again later.\n",sfip_ntoa(&station->stationip));
++ stationtry=0;
++ sampacket.status=FWSAM_STATUS_ERROR;
++ }
++ else /* got a packet */
++ { decbuf=(char *)&sampacket; /* get the pointer to the packet struct */
++ len=TwoFishDecrypt(encbuf,&decbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,FALSE,station->stationfish); /* try to decrypt the packet with current key */
++
++ if(len!=sizeof(FWsamPacket)) /* invalid decryption */
++ { strcpy(station->stationkey,station->initialkey); /* try the intial key */
++ TwoFishDestroy(station->stationfish);
++ station->stationfish=TwoFishInit(station->stationkey); /* re-initialize the TwoFish with the intial key */
++ len=TwoFishDecrypt(encbuf,&decbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,FALSE,station->stationfish); /* try again to decrypt */
++ LogMessage("INFO => [Alert_FWsam] Had to use initial key again!\n");
++ }
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] Received %s\n",sampacket.status==FWSAM_STATUS_OK?"OK":
++ sampacket.status==FWSAM_STATUS_NEWKEY?"NEWKEY":
++ sampacket.status==FWSAM_STATUS_RESYNC?"RESYNC":
++ sampacket.status==FWSAM_STATUS_HOLD?"HOLD":"ERROR");
++ LogMessage("DEBUG => [Alert_FWsam] Snort SeqNo: %x\n",sampacket.snortseqno[0]|(sampacket.snortseqno[1]<<8));
++ LogMessage("DEBUG => [Alert_FWsam] Mgmt SeqNo : %x\n",station->stationseqno);
++ LogMessage("DEBUG => [Alert_FWsam] Status : %i\n",sampacket.status);
++ LogMessage("DEBUG => [Alert_FWsam] Version : %i\n",sampacket.version);
++#endif
++ if(len!=sizeof(FWsamPacket)) /* invalid decryption */
++ { ErrorMessage("ERROR => [Alert_FWsam] Password mismatch! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ deletestation=TRUE;
++ sampacket.status=FWSAM_STATUS_ERROR;
++ }
++ else if(sampacket.version!=FWSAM_PACKETVERSION) /* invalid protocol version */
++ { ErrorMessage("ERROR => [Alert_FWsam] Protocol version error! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ deletestation=TRUE;
++ sampacket.status=FWSAM_STATUS_ERROR;
++ }
++ else if(sampacket.status!=FWSAM_STATUS_OK && sampacket.status!=FWSAM_STATUS_NEWKEY && sampacket.status!=FWSAM_STATUS_RESYNC)
++ { ErrorMessage("ERROR => [Alert_FWsam] Funky handshake error! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ deletestation=TRUE;
++ sampacket.status=FWSAM_STATUS_ERROR;
++ }
++ }
++ }
++ if(sampacket.status==FWSAM_STATUS_RESYNC) /* if station want's to resync... */
++ { strcpy(station->stationkey,station->initialkey); /* ...we use the intial key... */
++ memcpy(station->fwkeymod,sampacket.duration,4); /* and note the random key modifier */
++ }
++ if(sampacket.status==FWSAM_STATUS_NEWKEY || sampacket.status==FWSAM_STATUS_RESYNC)
++ {
++ FWsamNewStationKey(station,&sampacket); /* generate new TwoFish keys */
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] Generated new encryption key...\n");
++#endif
++ }
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ stationtry=0;
++ }
++ else if(sampacket.status==FWSAM_STATUS_ERROR) /* if SnortSam reports an error on second try, */
++ {
++#ifdef WIN32
++ closesocket(stationsocket); /* something is messed up and ... */
++#else
++ close(stationsocket);
++#endif
++ if(stationtry>1) /* we ignore that station. */
++ { deletestation=TRUE; /* flag for deletion */
++ ErrorMessage("ERROR => [Alert_FWsam] Could not renegotiate key! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ }
++ else /* if we get an error on the first try, */
++ { if(!FWsamCheckIn(station)) /* we first try to check in again. */
++ { deletestation=TRUE;
++ ErrorMessage("ERROR => [Alert_FWsam] Password mismatch! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ }
++ }
++ }
++ else /* an unknown status means trouble... */
++ { ErrorMessage("ERROR => [Alert_FWsam] Funky handshake error! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ deletestation=TRUE;
++ }
++ }
++ else /* if the SnortSam agent uses a different packet version, we have no choice but to ignore it. */
++ { ErrorMessage("ERROR => [Alert_FWsam] Protocol version error! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ deletestation=TRUE;
++ }
++ }
++ else /* if the intial key failed to decrypt as well, the keys are not configured the same, and we ignore that SnortSam station. */
++ { ErrorMessage("ERROR => [Alert_FWsam] Password mismatch! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ deletestation=TRUE;
++ }
++ }
++ }
++ free(encbuf); /* release of the TwoFishAlloc'ed encryption buffer */
++ }
++ if(stationtry==0 || deletestation) /* if everything went real well, or real bad... */
++ { if(deletestation){ /* If it went bad, we remove the station from the list by marking the IP */
++// station->stationip.s_addr=0;
++ station->stationip.ip32[0]=0;
++ }
++ fwsamlist=fwsamlist->next;
++ }
++ }
++ else
++ fwsamlist=fwsamlist->next;
++ }
++ }
++ else
++ {
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam] Skipping repetitive block.\n");
++#endif
++ }
++ }
++}
++
++/* FWsamCheckOut will be called when Snort exists. It de-registeres this snort sensor
++ * from the list of sensor that the SnortSam agent keeps.
++ */
++void FWsamCheckOut(FWsamStation *station)
++{ FWsamPacket sampacket;
++ SOCKET stationsocket;
++ int i,len;
++ char *encbuf,*decbuf;
++ //unsigned char *encbuf,*decbuf;
++
++
++ stationsocket=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
++ if(stationsocket==INVALID_SOCKET)
++ FatalError("ERROR => [Alert_FWsam](FWsamCheckOut) Funky socket error (socket)!\n");
++ if(bind(stationsocket,(struct sockaddr *)&(station->localsocketaddr),sizeof(struct sockaddr)))
++ FatalError("ERROR => [Alert_FWsam](FWsamCheckOut) Could not bind socket!\n");
++
++ /* let's connect to the agent */
++ if(!connect(stationsocket,(struct sockaddr *)&station->stationsocketaddr,sizeof(struct sockaddr)))
++ { LogMessage("INFO => [Alert_FWsam](FWsamCheckOut) Disconnecting from host %s.\n",sfip_ntoa(&station->stationip));
++ /* now build the packet */
++ station->myseqno+=station->stationseqno; /* increase my seqno */
++ sampacket.endiancheck=1;
++ sampacket.snortseqno[0]=(char)station->myseqno;
++ sampacket.snortseqno[1]=(char)(station->myseqno>>8);
++ sampacket.fwseqno[0]=(char)station->stationseqno; /* fill station seqno */
++ sampacket.fwseqno[1]=(char)(station->stationseqno>>8);
++ sampacket.status=FWSAM_STATUS_CHECKOUT; /* checking out... */
++ sampacket.version=FWSAM_PACKETVERSION;
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckOut) Sending CHECKOUT\n");
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckOut) Snort SeqNo: %x\n",station->myseqno);
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckOut) Mgmt SeqNo : %x\n",station->stationseqno);
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckOut) Status : %i\n",sampacket.status);
++
++#endif
++
++ encbuf=TwoFishAlloc(sizeof(FWsamPacket),FALSE,FALSE,station->stationfish); /* get encryption buffer */
++ len=TwoFishEncrypt((char *)&sampacket,&encbuf,sizeof(FWsamPacket),FALSE,station->stationfish); /* encrypt packet with current key */
++
++ if(send(stationsocket,encbuf,len,0)==len)
++ { i=FWSAM_NETWAIT;
++#ifdef WIN32
++ ioctlsocket(stationsocket,FIONBIO,&i); /* set non blocking and wait for */
++#else
++ ioctl(stationsocket,FIONBIO,&i); /* set non blocking and wait for */
++#endif
++ while(i-- >1)
++ { waitms(10); /* ...wait a maximum of 3 secs for response... */
++ if(recv(stationsocket,encbuf,len,0)==len) /* ... for the status packet */
++ i=0;
++ }
++ if(i) /* if we got the packet */
++ { decbuf=(char *)&sampacket;
++ len=TwoFishDecrypt(encbuf,&decbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,FALSE,station->stationfish);
++
++ if(len!=sizeof(FWsamPacket)) /* invalid decryption */
++ { strcpy(station->stationkey,station->initialkey); /* try initial key */
++ TwoFishDestroy(station->stationfish); /* toss this fish */
++ station->stationfish=TwoFishInit(station->stationkey); /* re-initialze TwoFish with initial key */
++ len=TwoFishDecrypt(encbuf,&decbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,FALSE,station->stationfish); /* and try to decrypt again */
++ LogMessage("INFO => [Alert_FWsam](FWsamCheckOut) Had to use initial key!\n");
++ }
++ if(len==sizeof(FWsamPacket)) /* valid decryption */
++ { if(sampacket.version!=FWSAM_PACKETVERSION) /* but don't really care since we are on the way out */
++ ErrorMessage("WARNING => [Alert_FWsam](FWsamCheckOut) Protocol version error! What the hell, we're quitting anyway! :)\n");
++ }
++ else
++ ErrorMessage("WARNING => [Alert_FWsam](FWsamCheckOut) Password mismatch! What the hell, we're quitting anyway! :)\n");
++ }
++ }
++ free(encbuf); /* release TwoFishAlloc'ed buffer */
++ }
++ else
++ LogMessage("WARNING => [Alert_FWsam] Could not connect to host %s for CheckOut. What the hell, we're quitting anyway! :)\n",sfip_ntoa(&station->stationip));
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++}
++
++
++/* FWSamFree: Disconnects all FW-1 management stations,
++ * closes sockets, and frees the structures.
++ */
++void FWsamFree(FWsamList *list)
++{
++ FWsamList *next;
++
++ while(list) /* Free pointer list for rule type */
++ {
++ next=list->next;
++ free(list);
++ list=next;
++ }
++ list=FWsamStationList;
++
++ while(list) /* Free global pointer list and stations */
++ {
++ next=list->next;
++ if (list->station)
++ {
++ if(list->station->stationip.ip32[0])
++ //if(list->station->stationip.s_addr)
++ FWsamCheckOut(list->station); /* Send a Check-Out to SnortSam, */
++
++ TwoFishDestroy(list->station->stationfish); /* toss the fish, */
++ free(list->station); /* free station, */
++ }
++ free(list); /* free pointer, */
++ list=next; /* and move to next. */
++ }
++ FWsamStationList=NULL;
++ if(FWsamOptionField)
++ free(FWsamOptionField);
++}
++
++void AlertFWsamCleanExitFunc(int signal, void *arg)
++{ FWsamList *fwsamlist;
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamCleanExitFunc) Exiting...\n");
++#endif
++
++ fwsamlist=(FWsamList *)arg;
++ FWsamFree(fwsamlist); /* Free all elements */
++}
++
++void AlertFWsamRestartFunc(int signal, void *arg)
++{ FWsamList *fwsamlist;
++
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](AlertFWsamRestartFunc) Restarting...\n");
++#endif
++
++ fwsamlist=(FWsamList *)arg;
++ FWsamFree(fwsamlist); /* Free all elements */
++}
++
++/* This routine registers this Snort sensor with SnortSam.
++ * It will also change the encryption key based on some variables.
++ */
++int FWsamCheckIn(FWsamStation *station)
++{ int i,len,stationok=TRUE;
++ FWsamPacket sampacket;
++ char *encbuf,*decbuf;
++ //unsigned char *encbuf,*decbuf;
++ SOCKET stationsocket;
++
++
++ /* create a socket for the station */
++ stationsocket=socket(PF_INET,SOCK_STREAM,IPPROTO_TCP);
++ if(stationsocket==INVALID_SOCKET)
++ FatalError("ERROR => [Alert_FWsam](FWsamCheckIn) Funky socket error (socket)!\n");
++ if(bind(stationsocket,(struct sockaddr *)&(station->localsocketaddr),sizeof(struct sockaddr)))
++ FatalError("ERROR => [Alert_FWsam](FWsamCheckIn) Could not bind socket!\n");
++
++ i=TRUE;
++ /* let's connect to the agent */
++ if(connect(stationsocket,(struct sockaddr *)&station->stationsocketaddr,sizeof(struct sockaddr)))
++ LogMessage("WARNING => [Alert_FWsam](FWsamCheckIn) Could not connect to host %s. Will try later.\n",sfip_ntoa(&station->stationip));
++ else
++ { LogMessage("INFO => [Alert_FWsam](FWsamCheckIn) Connected to host %s.\n",sfip_ntoa(&station->stationip));
++ /* now build the packet */
++ sampacket.endiancheck=1;
++ sampacket.snortseqno[0]=(char)station->myseqno; /* fill my sequence number number */
++ sampacket.snortseqno[1]=(char)(station->myseqno>>8); /* fill my sequence number number */
++ sampacket.status=FWSAM_STATUS_CHECKIN; /* let's check in */
++ sampacket.version=FWSAM_PACKETVERSION; /* set the packet version */
++ memcpy(sampacket.duration,station->mykeymod,4); /* we'll send SnortSam our key modifier in the duration slot */
++ /* (the checkin packet is just the plain initial key) */
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Sending CheckIn\n");
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Snort SeqNo: %x\n",station->myseqno);
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Mode : %i\n",sampacket.status);
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Version : %i\n",sampacket.version);
++#endif
++ encbuf=TwoFishAlloc(sizeof(FWsamPacket),FALSE,FALSE,station->stationfish); /* get buffer for encryption */
++ len=TwoFishEncrypt((char *)&sampacket,&encbuf,sizeof(FWsamPacket),FALSE,station->stationfish); /* encrypt with initial key */
++ if(send(stationsocket,encbuf,len,0)!=len) /* weird...could not send */
++ LogMessage("WARNING => [Alert_FWsam](FWsamCheckIn) Could not send to host %s. Will try again later.\n",sfip_ntoa(&station->stationip));
++ else
++ { i=FWSAM_NETWAIT;
++#ifdef WIN32
++ ioctlsocket(stationsocket,FIONBIO,&i); /* set non blocking and wait for */
++#else
++ ioctl(stationsocket,FIONBIO,&i); /* set non blocking and wait for */
++#endif
++ while(i-- >1)
++ { waitms(10); /* wait a maximum of 3 secs for response */
++ if(recv(stationsocket,encbuf,len,0)==len)
++ i=0;
++ }
++ if(!i) /* time up? */
++ LogMessage("WARNING => [Alert_FWsam](FWsamCheckIn) Did not receive response from host %s. Will try again later.\n",sfip_ntoa(&station->stationip));
++ else
++ { decbuf=(char *)&sampacket; /* got status packet */
++ len=TwoFishDecrypt(encbuf,&decbuf,sizeof(FWsamPacket)+TwoFish_BLOCK_SIZE,FALSE,station->stationfish); /* try to decrypt with initial key */
++ if(len==sizeof(FWsamPacket)) /* valid decryption */
++ {
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Received %s\n",sampacket.status==FWSAM_STATUS_OK?"OK":
++ sampacket.status==FWSAM_STATUS_NEWKEY?"NEWKEY":
++ sampacket.status==FWSAM_STATUS_RESYNC?"RESYNC":
++ sampacket.status==FWSAM_STATUS_HOLD?"HOLD":"ERROR");
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Snort SeqNo: %x\n",sampacket.snortseqno[0]|(sampacket.snortseqno[1]<<8));
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Mgmt SeqNo : %x\n",sampacket.fwseqno[0]|(sampacket.fwseqno[1]<<8));
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Status : %i\n",sampacket.status);
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Version : %i\n",sampacket.version);
++#endif
++ if(sampacket.version==FWSAM_PACKETVERSION) /* master speaks my language */
++ { if(sampacket.status==FWSAM_STATUS_OK || sampacket.status==FWSAM_STATUS_NEWKEY || sampacket.status==FWSAM_STATUS_RESYNC)
++ { station->stationseqno=sampacket.fwseqno[0]|(sampacket.fwseqno[1]<<8); /* get stations seqno */
++ station->lastcontact=(unsigned long)time(NULL);
++
++ if(sampacket.status==FWSAM_STATUS_NEWKEY || sampacket.status==FWSAM_STATUS_RESYNC) /* generate new keys */
++ { memcpy(station->fwkeymod,sampacket.duration,4); /* note the key modifier */
++ FWsamNewStationKey(station,&sampacket); /* and generate new TwoFish keys (with key modifiers) */
++#ifdef FWSAMDEBUG
++ LogMessage("DEBUG => [Alert_FWsam](FWsamCheckIn) Generated new encryption key...\n");
++#endif
++ }
++ }
++ else /* weird, got a strange status back */
++ { ErrorMessage("ERROR => [Alert_FWsam](FWsamCheckIn) Funky handshake error! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ stationok=FALSE;
++ }
++ }
++ else /* packet version does not match */
++ { ErrorMessage("ERROR =>[Alert_FWsam](FWsamCheckIn) Protocol version error! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ stationok=FALSE;
++ }
++ }
++ else /* key does not match */
++ { ErrorMessage("ERROR => [Alert_FWsam](FWsamCheckIn) Password mismatch! Ignoring host %s.\n",sfip_ntoa(&station->stationip));
++ stationok=FALSE;
++ }
++ }
++ }
++ free(encbuf); /* release TwoFishAlloc'ed buffer */
++ }
++#ifdef WIN32
++ closesocket(stationsocket);
++#else
++ close(stationsocket);
++#endif
++ return stationok;
++}
++#undef FWSAMDEBUG
++
+diff -ruN snort-2.9.2.2/src/output-plugins/spo_alert_fwsam.h snort-2.9.2.2_bkup/src/output-plugins/spo_alert_fwsam.h
+--- snort-2.9.2.2/src/output-plugins/spo_alert_fwsam.h 1969-12-31 16:00:00.000000000 -0800
++++ snort-2.9.2.2_bkup/src/output-plugins/spo_alert_fwsam.h 2012-04-08 20:34:57.389687124 -0700
+@@ -0,0 +1,216 @@
++/* $Id: snortpatchb,v 1.5 2005/10/06 08:50:39 fknobbe Exp $
++**
++** spo_alert_fwsam.h
++**
++** Copyright (c) 2001-2004 Frank Knobbe <frank@knobbe.us>
++**
++** This program is free software; you can redistribute it and/or modify
++** it under the terms of the GNU General Public License as published by
++** the Free Software Foundation; either version 2 of the License, or
++** (at your option) any later version.
++**
++** This program is distributed in the hope that it will be useful,
++** but WITHOUT ANY WARRANTY; without even the implied warranty of
++** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++** GNU General Public License for more details.
++**
++** You should have received a copy of the GNU General Public License
++** along with this program; if not, write to the Free Software
++** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++*/
++
++/* This file gets included in plugbase.c when it is integrated into the rest
++ * of the program.
++ *
++ * For more info, see the beginning of spo_alert_fwsam.c
++ *
++ */
++
++#ifndef __SPO_FWSAM_H__
++#define __SPO_FWSAM_H__
++
++#include "snort.h"
++#include "rules.h"
++#include "plugbase.h"
++#include "plugin_enum.h"
++#include "fatal.h"
++#include "util.h"
++#include "twofish.h"
++
++#include <stdlib.h>
++#include <stdio.h>
++#include <time.h>
++#include <string.h>
++#include <ctype.h>
++#include <unistd.h>
++
++
++/* just some compatibility stuff */
++#ifdef WIN32
++#if !defined(_WINSOCKAPI_) && !defined(_WINSOCK2API_)
++#include <winsock.h>
++#endif
++#define waitms(x) Sleep(x)
++
++#else
++
++#include <sys/socket.h>
++#include <netinet/in.h>
++#include <arpa/inet.h>
++#include <sys/ioctl.h>
++#include <netdb.h>
++
++#ifdef SOLARIS
++#include <sys/filio.h>
++#endif
++
++typedef int SOCKET;
++
++#ifndef INVALID_SOCKET
++#define INVALID_SOCKET -1
++#endif
++
++#define waitms(x) usleep((x)*1000)
++
++#endif
++
++#ifndef FALSE
++#define FALSE 0
++#endif
++#ifndef TRUE
++#define TRUE !FALSE
++#endif
++#ifndef bool
++#define bool int
++#endif
++
++
++#if defined(_DEBUG) || defined(DEBUG)
++#ifndef FWSAMDEBUG
++#define FWSAMDEBUG
++#endif
++#else
++#endif
++
++
++/* Official Snort PlugIn Number has been moved into plugin_enum.h */
++
++
++/* fixed defines */
++
++#define FWSAM_DEFAULTPORT 898 /* Default port if user does not specify one in snort.conf */
++ /* (Was unused last time I checked...) */
++#define FWSAM_PACKETVERSION 14 /* version of the packet. Will increase with enhancements. */
++
++#define FWSAM_STATUS_CHECKIN 1 /* snort to fw */
++#define FWSAM_STATUS_CHECKOUT 2
++#define FWSAM_STATUS_BLOCK 3
++#define FWSAM_STATUS_UNBLOCK 9
++
++#define FWSAM_STATUS_OK 4 /* fw to snort */
++#define FWSAM_STATUS_ERROR 5
++#define FWSAM_STATUS_NEWKEY 6
++#define FWSAM_STATUS_RESYNC 7
++#define FWSAM_STATUS_HOLD 8
++
++#define FWSAM_LOG_NONE 0
++#define FWSAM_LOG_SHORTLOG 1
++#define FWSAM_LOG_SHORTALERT 2
++#define FWSAM_LOG_LONGLOG 3
++#define FWSAM_LOG_LONGALERT 4
++#define FWSAM_LOG (FWSAM_LOG_SHORTLOG|FWSAM_LOG_SHORTALERT|FWSAM_LOG_LONGLOG|FWSAM_LOG_LONGALERT)
++#define FWSAM_WHO_DST 8
++#define FWSAM_WHO_SRC 16
++#define FWSAM_WHO (FWSAM_WHO_DST|FWSAM_WHO_SRC)
++#define FWSAM_HOW_IN 32
++#define FWSAM_HOW_OUT 64
++#define FWSAM_HOW_INOUT (FWSAM_HOW_IN|FWSAM_HOW_OUT)
++#define FWSAM_HOW_THIS 128
++#define FWSAM_HOW (FWSAM_HOW_IN|FWSAM_HOW_OUT|FWSAM_HOW_THIS)
++
++
++/* user adjustable defines */
++
++#define FWSAM_REPET_BLOCKS 10 /* Snort remembers this amount of last blocks and... */
++#define FWSAM_REPET_TIME 20 /* ...checks if they fall within this time. If so,... */
++ /* ...the blocking request is not send. */
++
++#define FWSAM_NETWAIT 300 /* 100th of a second. 3 sec timeout for network connections */
++#define FWSAM_NETHOLD 6000 /* 100th of a second. 60 sec timeout for holding */
++
++#define SID_MAPFILE "sid-block.map"
++#define SID_ALT_MAPFILE "sid-fwsam.map"
++
++#define FWSAM_FANCYFETCH /* This will invoke a fast sid lookup routine */
++
++
++/* vars */
++
++typedef struct _FWsamstation /* structure of a mgmt station */
++{ unsigned short myseqno;
++ unsigned short stationseqno;
++ unsigned char mykeymod[4];
++ unsigned char fwkeymod[4];
++ unsigned short stationport;
++ //struct in_addr stationip;
++ sfip_t stationip;
++ struct sockaddr_in localsocketaddr;
++ struct sockaddr_in stationsocketaddr;
++ TWOFISH *stationfish;
++ char initialkey[TwoFish_KEY_LENGTH+2];
++ char stationkey[TwoFish_KEY_LENGTH+2];
++ time_t lastcontact;
++/* time_t sleepstart; */
++} FWsamStation;
++
++typedef struct _FWsampacket /* 2 blocks (3rd block is header from TwoFish) */
++{ unsigned short endiancheck; /* 0 */
++ unsigned char srcip[4]; /* 2 */
++ unsigned char dstip[4]; /* 6 */
++ unsigned char duration[4]; /* 10 */
++ unsigned char snortseqno[2]; /* 14 */
++ unsigned char fwseqno[2]; /* 16 */
++ unsigned char srcport[2]; /* 18 */
++ unsigned char dstport[2]; /* 20 */
++ unsigned char protocol[2]; /* 22 */
++ unsigned char fwmode; /* 24 */
++ unsigned char version; /* 25 */
++ unsigned char status; /* 26 */
++ unsigned char sig_id[4]; /* 27 */
++ unsigned char fluff; /* 31 */
++} FWsamPacket; /* 32 bytes in size */
++
++typedef struct _FWsamoptions /* snort rule options */
++{ unsigned long sid;
++ unsigned long duration;
++ unsigned char who;
++ unsigned char how;
++ unsigned char loglevel;
++} FWsamOptions;
++
++typedef struct _FWsamlistpointer
++{ FWsamStation *station;
++ struct _FWsamlistpointer *next;
++} FWsamList;
++
++
++/* functions */
++void AlertFWsamSetup(void);
++void AlertFWsamInit(char *args);
++void AlertFWsamOptionInit(char *args,OptTreeNode *otn,int protocol);
++void AlertFWsamCleanExitFunc(int signal, void *arg);
++void AlertFWsamRestartFunc(int signal, void *arg);
++void AlertFWsam(Packet *p, char *msg, void *arg, Event *event);
++int FWsamCheckIn(FWsamStation *station);
++void FWsamCheckOut(FWsamStation *station);
++void FWsamNewStationKey(FWsamStation *station,FWsamPacket *packet);
++void FWsamFixPacketEndian(FWsamPacket *p);
++unsigned long FWsamParseDuration(char *p);
++void FWsamFree(FWsamList *fwsamlist);
++int FWsamStationExists(FWsamStation *who,FWsamList *list);
++int FWsamReadLine(char *,unsigned long,FILE *);
++void FWsamParseLine(FWsamOptions *,char *);
++FWsamOptions *FWsamGetOption(unsigned long);
++int FWsamParseOption(FWsamOptions *,char *);
++
++#endif /* __SPO_FWSAM_H__ */
+diff -ruN snort-2.9.2.2/src/plugbase.c snort-2.9.2.2_bkup/src/plugbase.c
+--- snort-2.9.2.2/src/plugbase.c 2012-03-17 14:40:16.000000000 -0700
++++ snort-2.9.2.2_bkup/src/plugbase.c 2012-04-08 20:34:57.389687124 -0700
+@@ -130,6 +130,7 @@
+ #endif
+
+ #include "output-plugins/spo_alert_test.h"
++#include "output-plugins/spo_alert_fwsam.h"
+
+ extern ListHead *head_tmp;
+ extern PreprocConfigFuncNode *preproc_config_funcs;
+@@ -1520,6 +1521,7 @@
+ #endif
+
+ AlertTestSetup();
++ AlertFWsamSetup();
+ }
+
+ /****************************************************************************
+diff -ruN snort-2.9.2.2/src/plugin_enum.h snort-2.9.2.2_bkup/src/plugin_enum.h
+--- snort-2.9.2.2/src/plugin_enum.h 2012-01-12 14:11:40.000000000 -0800
++++ snort-2.9.2.2_bkup/src/plugin_enum.h 2012-04-08 20:34:57.389687124 -0700
+@@ -60,6 +60,7 @@
+ PLUGIN_URILEN_CHECK,
+ PLUGIN_DYNAMIC,
+ PLUGIN_FLOWBIT,
++ PLUGIN_FWSAM,
+ PLUGIN_FILE_DATA,
+ PLUGIN_BASE64_DECODE,
+ PLUGIN_MAX /* sentinel value */
+diff -ruN snort-2.9.2.2/src/twofish.c snort-2.9.2.2_bkup/src/twofish.c
+--- snort-2.9.2.2/src/twofish.c 1969-12-31 16:00:00.000000000 -0800
++++ snort-2.9.2.2_bkup/src/twofish.c 2012-04-08 20:34:57.389687124 -0700
+@@ -0,0 +1,971 @@
++/* $Id: twofish.c,v 2.1 2008/12/15 20:36:05 fknobbe Exp $
++ *
++ *
++ * Copyright (C) 1997-2000 The Cryptix Foundation Limited.
++ * Copyright (C) 2000 Farm9.
++ * Copyright (C) 2001 Frank Knobbe.
++ * All rights reserved.
++ *
++ * For Cryptix code:
++ * Use, modification, copying and distribution of this software is subject
++ * the terms and conditions of the Cryptix General Licence. You should have
++ * received a copy of the Cryptix General Licence along with this library;
++ * if not, you can download a copy from http://www.cryptix.org/ .
++ *
++ * For Farm9:
++ * --- jojo@farm9.com, August 2000, converted from Java to C++, added CBC mode and
++ * ciphertext stealing technique, added AsciiTwofish class for easy encryption
++ * decryption of text strings
++ *
++ * Frank Knobbe <frank@knobbe.us>:
++ * --- April 2001, converted from C++ to C, prefixed global variables
++ * with TwoFish, substituted some defines, changed functions to make use of
++ * variables supplied in a struct, modified and added routines for modular calls.
++ * Cleaned up the code so that defines are used instead of fixed 16's and 32's.
++ * Created two general purpose crypt routines for one block and multiple block
++ * encryption using Joh's CBC code.
++ * Added crypt routines that use a header (with a magic and data length).
++ * (Basically a major rewrite).
++ *
++ * Note: Routines labeled _TwoFish are private and should not be used
++ * (or with extreme caution).
++ *
++ */
++
++#ifndef __TWOFISH_LIBRARY_SOURCE__
++#define __TWOFISH_LIBRARY_SOURCE__
++
++#include <string.h>
++#include <stdlib.h>
++#include <time.h>
++#include <ctype.h>
++#include <sys/types.h>
++
++#ifdef WIN32
++
++#ifndef u_long
++typedef unsigned long u_long;
++#endif
++#ifndef u_int32_t
++typedef unsigned long u_int32_t;
++#endif
++#ifndef u_word
++typedef unsigned short u_word;
++#endif
++#ifndef u_int16_t
++typedef unsigned short u_int16_t;
++#endif
++#ifndef u_char
++typedef unsigned char u_char;
++#endif
++#ifndef u_int8_t
++typedef unsigned char u_int8_t;
++#endif
++
++#endif /* WIN32 */
++
++#include "twofish.h"
++
++
++bool TwoFish_srand=TRUE; /* if TRUE, first call of TwoFishInit will seed rand(); */
++ /* of TwoFishInit */
++
++/* Fixed 8x8 permutation S-boxes */
++static const u_int8_t TwoFish_P[2][256] =
++{
++ { /* p0 */
++ 0xA9, 0x67, 0xB3, 0xE8, 0x04, 0xFD, 0xA3, 0x76, 0x9A, 0x92, 0x80, 0x78,
++ 0xE4, 0xDD, 0xD1, 0x38, 0x0D, 0xC6, 0x35, 0x98, 0x18, 0xF7, 0xEC, 0x6C,
++ 0x43, 0x75, 0x37, 0x26, 0xFA, 0x13, 0x94, 0x48, 0xF2, 0xD0, 0x8B, 0x30,
++ 0x84, 0x54, 0xDF, 0x23, 0x19, 0x5B, 0x3D, 0x59, 0xF3, 0xAE, 0xA2, 0x82,
++ 0x63, 0x01, 0x83, 0x2E, 0xD9, 0x51, 0x9B, 0x7C, 0xA6, 0xEB, 0xA5, 0xBE,
++ 0x16, 0x0C, 0xE3, 0x61, 0xC0, 0x8C, 0x3A, 0xF5, 0x73, 0x2C, 0x25, 0x0B,
++ 0xBB, 0x4E, 0x89, 0x6B, 0x53, 0x6A, 0xB4, 0xF1, 0xE1, 0xE6, 0xBD, 0x45,
++ 0xE2, 0xF4, 0xB6, 0x66, 0xCC, 0x95, 0x03, 0x56, 0xD4, 0x1C, 0x1E, 0xD7,
++ 0xFB, 0xC3, 0x8E, 0xB5, 0xE9, 0xCF, 0xBF, 0xBA, 0xEA, 0x77, 0x39, 0xAF,
++ 0x33, 0xC9, 0x62, 0x71, 0x81, 0x79, 0x09, 0xAD, 0x24, 0xCD, 0xF9, 0xD8,
++ 0xE5, 0xC5, 0xB9, 0x4D, 0x44, 0x08, 0x86, 0xE7, 0xA1, 0x1D, 0xAA, 0xED,
++ 0x06, 0x70, 0xB2, 0xD2, 0x41, 0x7B, 0xA0, 0x11, 0x31, 0xC2, 0x27, 0x90,
++ 0x20, 0xF6, 0x60, 0xFF, 0x96, 0x5C, 0xB1, 0xAB, 0x9E, 0x9C, 0x52, 0x1B,
++ 0x5F, 0x93, 0x0A, 0xEF, 0x91, 0x85, 0x49, 0xEE, 0x2D, 0x4F, 0x8F, 0x3B,
++ 0x47, 0x87, 0x6D, 0x46, 0xD6, 0x3E, 0x69, 0x64, 0x2A, 0xCE, 0xCB, 0x2F,
++ 0xFC, 0x97, 0x05, 0x7A, 0xAC, 0x7F, 0xD5, 0x1A, 0x4B, 0x0E, 0xA7, 0x5A,
++ 0x28, 0x14, 0x3F, 0x29, 0x88, 0x3C, 0x4C, 0x02, 0xB8, 0xDA, 0xB0, 0x17,
++ 0x55, 0x1F, 0x8A, 0x7D, 0x57, 0xC7, 0x8D, 0x74, 0xB7, 0xC4, 0x9F, 0x72,
++ 0x7E, 0x15, 0x22, 0x12, 0x58, 0x07, 0x99, 0x34, 0x6E, 0x50, 0xDE, 0x68,
++ 0x65, 0xBC, 0xDB, 0xF8, 0xC8, 0xA8, 0x2B, 0x40, 0xDC, 0xFE, 0x32, 0xA4,
++ 0xCA, 0x10, 0x21, 0xF0, 0xD3, 0x5D, 0x0F, 0x00, 0x6F, 0x9D, 0x36, 0x42,
++ 0x4A, 0x5E, 0xC1, 0xE0
++ },
++ { /* p1 */
++ 0x75, 0xF3, 0xC6, 0xF4, 0xDB, 0x7B, 0xFB, 0xC8, 0x4A, 0xD3, 0xE6, 0x6B,
++ 0x45, 0x7D, 0xE8, 0x4B, 0xD6, 0x32, 0xD8, 0xFD, 0x37, 0x71, 0xF1, 0xE1,
++ 0x30, 0x0F, 0xF8, 0x1B, 0x87, 0xFA, 0x06, 0x3F, 0x5E, 0xBA, 0xAE, 0x5B,
++ 0x8A, 0x00, 0xBC, 0x9D, 0x6D, 0xC1, 0xB1, 0x0E, 0x80, 0x5D, 0xD2, 0xD5,
++ 0xA0, 0x84, 0x07, 0x14, 0xB5, 0x90, 0x2C, 0xA3, 0xB2, 0x73, 0x4C, 0x54,
++ 0x92, 0x74, 0x36, 0x51, 0x38, 0xB0, 0xBD, 0x5A, 0xFC, 0x60, 0x62, 0x96,
++ 0x6C, 0x42, 0xF7, 0x10, 0x7C, 0x28, 0x27, 0x8C, 0x13, 0x95, 0x9C, 0xC7,
++ 0x24, 0x46, 0x3B, 0x70, 0xCA, 0xE3, 0x85, 0xCB, 0x11, 0xD0, 0x93, 0xB8,
++ 0xA6, 0x83, 0x20, 0xFF, 0x9F, 0x77, 0xC3, 0xCC, 0x03, 0x6F, 0x08, 0xBF,
++ 0x40, 0xE7, 0x2B, 0xE2, 0x79, 0x0C, 0xAA, 0x82, 0x41, 0x3A, 0xEA, 0xB9,
++ 0xE4, 0x9A, 0xA4, 0x97, 0x7E, 0xDA, 0x7A, 0x17, 0x66, 0x94, 0xA1, 0x1D,
++ 0x3D, 0xF0, 0xDE, 0xB3, 0x0B, 0x72, 0xA7, 0x1C, 0xEF, 0xD1, 0x53, 0x3E,
++ 0x8F, 0x33, 0x26, 0x5F, 0xEC, 0x76, 0x2A, 0x49, 0x81, 0x88, 0xEE, 0x21,
++ 0xC4, 0x1A, 0xEB, 0xD9, 0xC5, 0x39, 0x99, 0xCD, 0xAD, 0x31, 0x8B, 0x01,
++ 0x18, 0x23, 0xDD, 0x1F, 0x4E, 0x2D, 0xF9, 0x48, 0x4F, 0xF2, 0x65, 0x8E,
++ 0x78, 0x5C, 0x58, 0x19, 0x8D, 0xE5, 0x98, 0x57, 0x67, 0x7F, 0x05, 0x64,
++ 0xAF, 0x63, 0xB6, 0xFE, 0xF5, 0xB7, 0x3C, 0xA5, 0xCE, 0xE9, 0x68, 0x44,
++ 0xE0, 0x4D, 0x43, 0x69, 0x29, 0x2E, 0xAC, 0x15, 0x59, 0xA8, 0x0A, 0x9E,
++ 0x6E, 0x47, 0xDF, 0x34, 0x35, 0x6A, 0xCF, 0xDC, 0x22, 0xC9, 0xC0, 0x9B,
++ 0x89, 0xD4, 0xED, 0xAB, 0x12, 0xA2, 0x0D, 0x52, 0xBB, 0x02, 0x2F, 0xA9,
++ 0xD7, 0x61, 0x1E, 0xB4, 0x50, 0x04, 0xF6, 0xC2, 0x16, 0x25, 0x86, 0x56,
++ 0x55, 0x09, 0xBE, 0x91
++ }
++};
++
++static bool TwoFish_MDSready=FALSE;
++static u_int32_t TwoFish_MDS[4][256]; /* TwoFish_MDS matrix */
++
++
++#define TwoFish_LFSR1(x) (((x)>>1)^(((x)&0x01)?TwoFish_MDS_GF_FDBK/2:0))
++#define TwoFish_LFSR2(x) (((x)>>2)^(((x)&0x02)?TwoFish_MDS_GF_FDBK/2:0)^(((x)&0x01)?TwoFish_MDS_GF_FDBK/4:0))
++
++#define TwoFish_Mx_1(x) ((u_int32_t)(x)) /* force result to dword so << will work */
++#define TwoFish_Mx_X(x) ((u_int32_t)((x)^TwoFish_LFSR2(x))) /* 5B */
++#define TwoFish_Mx_Y(x) ((u_int32_t)((x)^TwoFish_LFSR1(x)^TwoFish_LFSR2(x))) /* EF */
++#define TwoFish_RS_rem(x) { u_int8_t b=(u_int8_t)(x>>24); u_int32_t g2=((b<<1)^((b&0x80)?TwoFish_RS_GF_FDBK:0))&0xFF; u_int32_t g3=((b>>1)&0x7F)^((b&1)?TwoFish_RS_GF_FDBK>>1:0)^g2; x=(x<<8)^(g3<<24)^(g2<<16)^(g3<<8)^b; }
++
++/*#define TwoFish__b(x,N) (((u_int8_t *)&x)[((N)&3)^TwoFish_ADDR_XOR])*/ /* pick bytes out of a dword */
++
++#define TwoFish_b0(x) TwoFish__b(x,0) /* extract LSB of u_int32_t */
++#define TwoFish_b1(x) TwoFish__b(x,1)
++#define TwoFish_b2(x) TwoFish__b(x,2)
++#define TwoFish_b3(x) TwoFish__b(x,3) /* extract MSB of u_int32_t */
++
++u_int8_t TwoFish__b(u_int32_t x,int n)
++{ n&=3;
++ while(n-->0)
++ x>>=8;
++ return (u_int8_t)x;
++}
++
++
++/* TwoFish Initialization
++ *
++ * This routine generates a global data structure for use with TwoFish,
++ * initializes important values (such as subkeys, sBoxes), generates subkeys
++ * and precomputes the MDS matrix if not already done.
++ *
++ * Input: User supplied password (will be appended by default password of 'SnortHas2FishEncryptionRoutines!')
++ *
++ * Output: Pointer to TWOFISH structure. This data structure contains key dependent data.
++ * This pointer is used with all other crypt functions.
++ */
++
++TWOFISH *TwoFishInit(char *userkey)
++{ TWOFISH *tfdata;
++ int i,x,m;
++ char tkey[TwoFish_KEY_LENGTH+40];
++
++ tfdata=malloc(sizeof(TWOFISH)); /* allocate the TwoFish structure */
++ if(tfdata!=NULL)
++ { if(*userkey)
++ { strncpy(tkey,userkey,TwoFish_KEY_LENGTH); /* use first 32 chars of user supplied password */
++ tkey[TwoFish_KEY_LENGTH]=0; /* make sure it wasn't more */
++ }
++ else
++ strcpy(tkey,TwoFish_DEFAULT_PW); /* if no key defined, use default password */
++ for(i=0,x=0,m=strlen(tkey);i<TwoFish_KEY_LENGTH;i++) /* copy into data structure */
++ { tfdata->key[i]=tkey[x++]; /* fill the whole keyspace with repeating key. */
++ if(x==m)
++ x=0;
++ }
++
++ if(!TwoFish_MDSready)
++ _TwoFish_PrecomputeMDSmatrix(); /* "Wake Up, Neo" */
++ _TwoFish_MakeSubKeys(tfdata); /* generate subkeys */
++ _TwoFish_ResetCBC(tfdata); /* reset the CBC */
++ tfdata->output=NULL; /* nothing to output yet */
++ tfdata->dontflush=FALSE; /* reset decrypt skip block flag */
++ if(TwoFish_srand)
++ { TwoFish_srand=FALSE;
++ srand(time(NULL));
++ }
++ }
++ return tfdata; /* return the data pointer */
++}
++
++
++void TwoFishDestroy(TWOFISH *tfdata)
++{ if(tfdata!=NULL)
++ free(tfdata);
++}
++
++
++/* en/decryption with CBC mode */
++unsigned long _TwoFish_CryptRawCBC(char *in,char *out,unsigned long len,bool decrypt,TWOFISH *tfdata)
++{ unsigned long rl;
++
++ rl=len; /* remember how much data to crypt. */
++ while(len>TwoFish_BLOCK_SIZE) /* and now we process block by block. */
++ { _TwoFish_BlockCrypt(in,out,TwoFish_BLOCK_SIZE,decrypt,tfdata); /* de/encrypt it. */
++ in+=TwoFish_BLOCK_SIZE; /* adjust pointers. */
++ out+=TwoFish_BLOCK_SIZE;
++ len-=TwoFish_BLOCK_SIZE;
++ }
++ if(len>0) /* if we have less than a block left... */
++ _TwoFish_BlockCrypt(in,out,len,decrypt,tfdata); /* ...then we de/encrypt that too. */
++ if(tfdata->qBlockDefined && !tfdata->dontflush) /* in case len was exactly one block... */
++ _TwoFish_FlushOutput(tfdata->qBlockCrypt,TwoFish_BLOCK_SIZE,tfdata); /* ...we need to write the... */
++ /* ...remaining bytes of the buffer */
++ return rl;
++}
++
++/* en/decryption on one block only */
++unsigned long _TwoFish_CryptRaw16(char *in,char *out,unsigned long len,bool decrypt,TWOFISH *tfdata)
++{ /* qBlockPlain already zero'ed through ResetCBC */
++ memcpy(tfdata->qBlockPlain,in,len); /* toss the data into it. */
++ _TwoFish_BlockCrypt16(tfdata->qBlockPlain,tfdata->qBlockCrypt,decrypt,tfdata); /* encrypt just that block without CBC. */
++ memcpy(out,tfdata->qBlockCrypt,TwoFish_BLOCK_SIZE); /* and return what we got */
++ return TwoFish_BLOCK_SIZE;
++}
++
++/* en/decryption without reset of CBC and output assignment */
++unsigned long _TwoFish_CryptRaw(char *in,char *out,unsigned long len,bool decrypt,TWOFISH *tfdata)
++{
++ if(in!=NULL && out!=NULL && len>0 && tfdata!=NULL) /* if we have valid data, then... */
++ { if(len>TwoFish_BLOCK_SIZE) /* ...check if we have more than one block. */
++ return _TwoFish_CryptRawCBC(in,out,len,decrypt,tfdata); /* if so, use the CBC routines... */
++ else
++ return _TwoFish_CryptRaw16(in,out,len,decrypt,tfdata); /* ...otherwise just do one block. */
++ }
++ return 0;
++}
++
++
++/* TwoFish Raw Encryption
++ *
++ * Does not use header, but does use CBC (if more than one block has to be encrypted).
++ *
++ * Input: Pointer to the buffer of the plaintext to be encrypted.
++ * Pointer to the buffer receiving the ciphertext.
++ * The length of the plaintext buffer.
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes encrypted if successful, otherwise 0.
++ */
++
++unsigned long TwoFishEncryptRaw(char *in,
++ char *out,
++ unsigned long len,
++ TWOFISH *tfdata)
++{ _TwoFish_ResetCBC(tfdata); /* reset CBC flag. */
++ tfdata->output=out; /* output straight into output buffer. */
++ return _TwoFish_CryptRaw(in,out,len,FALSE,tfdata); /* and go for it. */
++}
++
++/* TwoFish Raw Decryption
++ *
++ * Does not use header, but does use CBC (if more than one block has to be decrypted).
++ *
++ * Input: Pointer to the buffer of the ciphertext to be decrypted.
++ * Pointer to the buffer receiving the plaintext.
++ * The length of the ciphertext buffer (at least one cipher block).
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes decrypted if successful, otherwise 0.
++ */
++
++unsigned long TwoFishDecryptRaw(char *in,
++ char *out,
++ unsigned long len,
++ TWOFISH *tfdata)
++{ _TwoFish_ResetCBC(tfdata); /* reset CBC flag. */
++ tfdata->output=out; /* output straight into output buffer. */
++ return _TwoFish_CryptRaw(in,out,len,TRUE,tfdata); /* and go for it. */
++}
++
++/* TwoFish Free
++ *
++ * Free's the allocated buffer.
++ *
++ * Input: Pointer to the TwoFish structure
++ *
++ * Output: (none)
++ */
++
++void TwoFishFree(TWOFISH *tfdata)
++{ if(tfdata->output!=NULL) /* if a valid buffer is present... */
++ { free(tfdata->output); /* ...then we free it for you... */
++ tfdata->output=NULL; /* ...and mark as such. */
++ }
++}
++
++/* TwoFish Set Output
++ *
++ * If you want to allocate the output buffer yourself,
++ * then you can set it with this function.
++ *
++ * Input: Pointer to your output buffer
++ * Pointer to the TwoFish structure
++ *
++ * Output: (none)
++ */
++
++void TwoFishSetOutput(char *outp,TWOFISH *tfdata)
++{ tfdata->output=outp; /* (do we really need a function for this?) */
++}
++
++/* TwoFish Alloc
++ *
++ * Allocates enough memory for the output buffer that would be required
++ *
++ * Input: Length of the plaintext.
++ * Boolean flag for BinHex Output.
++ * Pointer to the TwoFish structure.
++ *
++ * Output: Returns a pointer to the memory allocated.
++ */
++
++void *TwoFishAlloc(unsigned long len,bool binhex,bool decrypt,TWOFISH *tfdata)
++{
++/* TwoFishFree(tfdata); */ /* (don't for now) discard whatever was allocated earlier. */
++ if(decrypt) /* if decrypting... */
++ { if(binhex) /* ...and input is binhex encoded... */
++ len/=2; /* ...use half as much for output. */
++ len-=TwoFish_BLOCK_SIZE; /* Also, subtract the size of the header. */
++ }
++ else
++ { len+=TwoFish_BLOCK_SIZE; /* the size is just increased by the header... */
++ if(binhex)
++ len*=2; /* ...and doubled if output is to be binhexed. */
++ }
++ tfdata->output=malloc(len+TwoFish_BLOCK_SIZE);/* grab some memory...plus some extra (it's running over somewhere, crashes without extra padding) */
++
++ return tfdata->output; /* ...and return to caller. */
++}
++
++/* bin2hex and hex2bin conversion */
++void _TwoFish_BinHex(u_int8_t *buf,unsigned long len,bool bintohex)
++{ u_int8_t *pi,*po,c;
++
++ if(bintohex)
++ { for(pi=buf+len-1,po=buf+(2*len)-1;len>0;pi--,po--,len--) /* let's start from the end of the bin block. */
++ { c=*pi; /* grab value. */
++ c&=15; /* use lower 4 bits. */
++ if(c>9) /* convert to ascii. */
++ c+=('a'-10);
++ else
++ c+='0';
++ *po--=c; /* set the lower nibble. */
++ c=*pi; /* grab value again. */
++ c>>=4; /* right shift 4 bits. */
++ c&=15; /* make sure we only have 4 bits. */
++ if(c>9) /* convert to ascii. */
++ c+=('a'-10);
++ else
++ c+='0';
++ *po=c; /* set the higher nibble. */
++ } /* and keep going. */
++ }
++ else
++ { for(pi=buf,po=buf;len>0;pi++,po++,len-=2) /* let's start from the beginning of the hex block. */
++ { c=tolower(*pi++)-'0'; /* grab higher nibble. */
++ if(c>9) /* convert to value. */
++ c-=('0'-9);
++ *po=c<<4; /* left shit 4 bits. */
++ c=tolower(*pi)-'0'; /* grab lower nibble. */
++ if(c>9) /* convert to value. */
++ c-=('0'-9);
++ *po|=c; /* and add to value. */
++ }
++ }
++}
++
++
++/* TwoFish Encryption
++ *
++ * Uses header and CBC. If the output area has not been intialized with TwoFishAlloc,
++ * this routine will alloc the memory. In addition, it will include a small 'header'
++ * containing the magic and some salt. That way the decrypt routine can check if the
++ * packet got decrypted successfully, and return 0 instead of garbage.
++ *
++ * Input: Pointer to the buffer of the plaintext to be encrypted.
++ * Pointer to the pointer to the buffer receiving the ciphertext.
++ * The pointer either points to user allocated output buffer space, or to NULL, in which case
++ * this routine will set the pointer to the buffer allocated through the struct.
++ * The length of the plaintext buffer.
++ * Can be -1 if the input is a null terminated string, in which case we'll count for you.
++ * Boolean flag for BinHex Output (if used, output will be twice as large as input).
++ * Note: BinHex conversion overwrites (converts) input buffer!
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes encrypted if successful, otherwise 0.
++ */
++
++unsigned long TwoFishEncrypt(char *in,
++ char **out,
++ signed long len,
++ bool binhex,
++ TWOFISH *tfdata)
++{ unsigned long ilen,olen;
++
++
++ if(len== -1) /* if we got -1 for len, we'll assume IN is a... */
++ ilen=strlen(in); /* ...\0 terminated string and figure len out ourselves... */
++ else
++ ilen=len; /* ...otherwise we trust you supply a correct length. */
++
++ if(in!=NULL && out!=NULL && ilen>0 && tfdata!=NULL) /* if we got usable stuff, we'll do it. */
++ { if(*out==NULL) /* if OUT points to a NULL pointer... */
++ *out=TwoFishAlloc(ilen,binhex,FALSE,tfdata); /* ...we'll (re-)allocate buffer space. */
++ if(*out!=NULL)
++ { tfdata->output=*out; /* set output buffer. */
++ tfdata->header.salt=rand()*65536+rand(); /* toss in some salt. */
++ tfdata->header.length[0]= (u_int8_t)(ilen);
++ tfdata->header.length[1]= (u_int8_t)(ilen>>8);
++ tfdata->header.length[2]= (u_int8_t)(ilen>>16);
++ tfdata->header.length[3]= (u_int8_t)(ilen>>24);
++ memcpy(tfdata->header.magic,TwoFish_MAGIC,TwoFish_MAGIC_LEN); /* set the magic. */
++ olen=TwoFish_BLOCK_SIZE; /* set output counter. */
++ _TwoFish_ResetCBC(tfdata); /* reset the CBC flag */
++ _TwoFish_BlockCrypt((u_int8_t *)&(tfdata->header),*out,olen,FALSE,tfdata); /* encrypt first block (without flush on 16 byte boundary). */
++ olen+=_TwoFish_CryptRawCBC(in,*out+TwoFish_BLOCK_SIZE,ilen,FALSE,tfdata); /* and encrypt the rest (we do not reset the CBC flag). */
++ if(binhex) /* if binhex... */
++ { _TwoFish_BinHex(*out,olen,TRUE); /* ...convert output to binhex... */
++ olen*=2; /* ...and size twice as large. */
++ }
++ tfdata->output=*out;
++ return olen;
++ }
++ }
++ return 0;
++}
++
++/* TwoFish Decryption
++ *
++ * Uses header and CBC. If the output area has not been intialized with TwoFishAlloc,
++ * this routine will alloc the memory. In addition, it will check the small 'header'
++ * containing the magic. If magic does not match we return 0. Otherwise we return the
++ * amount of bytes decrypted (should be the same as the length in the header).
++ *
++ * Input: Pointer to the buffer of the ciphertext to be decrypted.
++ * Pointer to the pointer to the buffer receiving the plaintext.
++ * The pointer either points to user allocated output buffer space, or to NULL, in which case
++ * this routine will set the pointer to the buffer allocated through the struct.
++ * The length of the ciphertext buffer.
++ * Can be -1 if the input is a null terminated binhex string, in which case we'll count for you.
++ * Boolean flag for BinHex Input (if used, plaintext will be half as large as input).
++ * Note: BinHex conversion overwrites (converts) input buffer!
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes decrypted if successful, otherwise 0.
++ */
++
++unsigned long TwoFishDecrypt(char *in,
++ char **out,
++ signed long len,
++ bool binhex,
++ TWOFISH *tfdata)
++{ unsigned long ilen,elen,olen;
++ const u_int8_t cmagic[TwoFish_MAGIC_LEN]=TwoFish_MAGIC;
++ u_int8_t *tbuf;
++
++
++
++ if(len== -1) /* if we got -1 for len, we'll assume IN is... */
++ ilen=strlen(in); /* ...\0 terminated binhex and figure len out ourselves... */
++ else
++ ilen=len; /* ...otherwise we trust you supply a correct length. */
++
++ if(in!=NULL && out!=NULL && ilen>0 && tfdata!=NULL) /* if we got usable stuff, we'll do it. */
++ { if(*out==NULL) /* if OUT points to a NULL pointer... */
++ *out=TwoFishAlloc(ilen,binhex,TRUE,tfdata); /* ...we'll (re-)allocate buffer space. */
++ if(*out!=NULL)
++ { if(binhex) /* if binhex... */
++ { _TwoFish_BinHex(in,ilen,FALSE); /* ...convert input to values... */
++ ilen/=2; /* ...and size half as much. */
++ }
++ _TwoFish_ResetCBC(tfdata); /* reset the CBC flag. */
++
++ tbuf=(u_int8_t *)malloc(ilen+TwoFish_BLOCK_SIZE); /* get memory for data and header. */
++ if(tbuf==NULL)
++ return 0;
++ tfdata->output=tbuf; /* set output to temp buffer. */
++
++ olen=_TwoFish_CryptRawCBC(in,tbuf,ilen,TRUE,tfdata)-TwoFish_BLOCK_SIZE; /* decrypt the whole thing. */
++ memcpy(&(tfdata->header),tbuf,TwoFish_BLOCK_SIZE); /* copy first block into header. */
++ tfdata->output=*out;
++ for(elen=0;elen<TwoFish_MAGIC_LEN;elen++) /* compare magic. */
++ if(tfdata->header.magic[elen]!=cmagic[elen])
++ break;
++ if(elen==TwoFish_MAGIC_LEN) /* if magic matches then... */
++ { elen=(tfdata->header.length[0]) |
++ (tfdata->header.length[1])<<8 |
++ (tfdata->header.length[2])<<16 |
++ (tfdata->header.length[3])<<24; /* .. we know how much to expect. */
++ if(elen>olen) /* adjust if necessary. */
++ elen=olen;
++ memcpy(*out,tbuf+TwoFish_BLOCK_SIZE,elen); /* copy data into intended output. */
++ free(tbuf);
++ return elen;
++ }
++ free(tbuf);
++ }
++ }
++ return 0;
++}
++
++void _TwoFish_PrecomputeMDSmatrix(void) /* precompute the TwoFish_MDS matrix */
++{ u_int32_t m1[2];
++ u_int32_t mX[2];
++ u_int32_t mY[2];
++ u_int32_t i, j;
++
++ for (i = 0; i < 256; i++)
++ { j = TwoFish_P[0][i] & 0xFF; /* compute all the matrix elements */
++ m1[0] = j;
++ mX[0] = TwoFish_Mx_X( j ) & 0xFF;
++ mY[0] = TwoFish_Mx_Y( j ) & 0xFF;
++
++ j = TwoFish_P[1][i] & 0xFF;
++ m1[1] = j;
++ mX[1] = TwoFish_Mx_X( j ) & 0xFF;
++ mY[1] = TwoFish_Mx_Y( j ) & 0xFF;
++
++ TwoFish_MDS[0][i] = m1[TwoFish_P_00] | /* fill matrix w/ above elements */
++ mX[TwoFish_P_00] << 8 |
++ mY[TwoFish_P_00] << 16 |
++ mY[TwoFish_P_00] << 24;
++ TwoFish_MDS[1][i] = mY[TwoFish_P_10] |
++ mY[TwoFish_P_10] << 8 |
++ mX[TwoFish_P_10] << 16 |
++ m1[TwoFish_P_10] << 24;
++ TwoFish_MDS[2][i] = mX[TwoFish_P_20] |
++ mY[TwoFish_P_20] << 8 |
++ m1[TwoFish_P_20] << 16 |
++ mY[TwoFish_P_20] << 24;
++ TwoFish_MDS[3][i] = mX[TwoFish_P_30] |
++ m1[TwoFish_P_30] << 8 |
++ mY[TwoFish_P_30] << 16 |
++ mX[TwoFish_P_30] << 24;
++ }
++ TwoFish_MDSready=TRUE;
++}
++
++
++void _TwoFish_MakeSubKeys(TWOFISH *tfdata) /* Expand a user-supplied key material into a session key. */
++{ u_int32_t k64Cnt = TwoFish_KEY_LENGTH / 8;
++ u_int32_t k32e[4]; /* even 32-bit entities */
++ u_int32_t k32o[4]; /* odd 32-bit entities */
++ u_int32_t sBoxKey[4];
++ u_int32_t offset,i,j;
++ u_int32_t A, B, q=0;
++ u_int32_t k0,k1,k2,k3;
++ u_int32_t b0,b1,b2,b3;
++
++ /* split user key material into even and odd 32-bit entities and */
++ /* compute S-box keys using (12, 8) Reed-Solomon code over GF(256) */
++
++
++ for (offset=0,i=0,j=k64Cnt-1;i<4 && offset<TwoFish_KEY_LENGTH;i++,j--)
++ { k32e[i] = tfdata->key[offset++];
++ k32e[i]|= tfdata->key[offset++]<<8;
++ k32e[i]|= tfdata->key[offset++]<<16;
++ k32e[i]|= tfdata->key[offset++]<<24;
++ k32o[i] = tfdata->key[offset++];
++ k32o[i]|= tfdata->key[offset++]<<8;
++ k32o[i]|= tfdata->key[offset++]<<16;
++ k32o[i]|= tfdata->key[offset++]<<24;
++ sBoxKey[j] = _TwoFish_RS_MDS_Encode( k32e[i], k32o[i] ); /* reverse order */
++ }
++
++ /* compute the round decryption subkeys for PHT. these same subkeys */
++ /* will be used in encryption but will be applied in reverse order. */
++ i=0;
++ while(i < TwoFish_TOTAL_SUBKEYS)
++ { A = _TwoFish_F32( k64Cnt, q, k32e ); /* A uses even key entities */
++ q += TwoFish_SK_BUMP;
++
++ B = _TwoFish_F32( k64Cnt, q, k32o ); /* B uses odd key entities */
++ q += TwoFish_SK_BUMP;
++
++ B = B << 8 | B >> 24;
++
++ A += B;
++ tfdata->subKeys[i++] = A; /* combine with a PHT */
++
++ A += B;
++ tfdata->subKeys[i++] = A << TwoFish_SK_ROTL | A >> (32-TwoFish_SK_ROTL);
++ }
++
++ /* fully expand the table for speed */
++ k0 = sBoxKey[0];
++ k1 = sBoxKey[1];
++ k2 = sBoxKey[2];
++ k3 = sBoxKey[3];
++
++ for (i = 0; i < 256; i++)
++ { b0 = b1 = b2 = b3 = i;
++ switch (k64Cnt & 3)
++ { case 1: /* 64-bit keys */
++ tfdata->sBox[ 2*i ] = TwoFish_MDS[0][(TwoFish_P[TwoFish_P_01][b0]) ^ TwoFish_b0(k0)];
++ tfdata->sBox[ 2*i+1] = TwoFish_MDS[1][(TwoFish_P[TwoFish_P_11][b1]) ^ TwoFish_b1(k0)];
++ tfdata->sBox[0x200+2*i ] = TwoFish_MDS[2][(TwoFish_P[TwoFish_P_21][b2]) ^ TwoFish_b2(k0)];
++ tfdata->sBox[0x200+2*i+1] = TwoFish_MDS[3][(TwoFish_P[TwoFish_P_31][b3]) ^ TwoFish_b3(k0)];
++ break;
++ case 0: /* 256-bit keys (same as 4) */
++ b0 = (TwoFish_P[TwoFish_P_04][b0]) ^ TwoFish_b0(k3);
++ b1 = (TwoFish_P[TwoFish_P_14][b1]) ^ TwoFish_b1(k3);
++ b2 = (TwoFish_P[TwoFish_P_24][b2]) ^ TwoFish_b2(k3);
++ b3 = (TwoFish_P[TwoFish_P_34][b3]) ^ TwoFish_b3(k3);
++ case 3: /* 192-bit keys */
++ b0 = (TwoFish_P[TwoFish_P_03][b0]) ^ TwoFish_b0(k2);
++ b1 = (TwoFish_P[TwoFish_P_13][b1]) ^ TwoFish_b1(k2);
++ b2 = (TwoFish_P[TwoFish_P_23][b2]) ^ TwoFish_b2(k2);
++ b3 = (TwoFish_P[TwoFish_P_33][b3]) ^ TwoFish_b3(k2);
++ case 2: /* 128-bit keys */
++ tfdata->sBox[ 2*i ]=
++ TwoFish_MDS[0][(TwoFish_P[TwoFish_P_01][(TwoFish_P[TwoFish_P_02][b0]) ^
++ TwoFish_b0(k1)]) ^ TwoFish_b0(k0)];
++
++ tfdata->sBox[ 2*i+1]=
++ TwoFish_MDS[1][(TwoFish_P[TwoFish_P_11][(TwoFish_P[TwoFish_P_12][b1]) ^
++ TwoFish_b1(k1)]) ^ TwoFish_b1(k0)];
++
++ tfdata->sBox[0x200+2*i ]=
++ TwoFish_MDS[2][(TwoFish_P[TwoFish_P_21][(TwoFish_P[TwoFish_P_22][b2]) ^
++ TwoFish_b2(k1)]) ^ TwoFish_b2(k0)];
++
++ tfdata->sBox[0x200+2*i+1]=
++ TwoFish_MDS[3][(TwoFish_P[TwoFish_P_31][(TwoFish_P[TwoFish_P_32][b3]) ^
++ TwoFish_b3(k1)]) ^ TwoFish_b3(k0)];
++ }
++ }
++}
++
++
++/**
++ * Encrypt or decrypt exactly one block of plaintext in CBC mode.
++ * Use "ciphertext stealing" technique described on pg. 196
++ * of "Applied Cryptography" to encrypt the final partial
++ * (i.e. <16 byte) block if necessary.
++ *
++ * jojo: the "ciphertext stealing" requires we read ahead and have
++ * special handling for the last two blocks. Because of this, the
++ * output from the TwoFish algorithm is handled internally here.
++ * It would be better to have a higher level handle this as well as
++ * CBC mode. Unfortunately, I've mixed the two together, which is
++ * pretty crappy... The Java version separates these out correctly.
++ *
++ * fknobbe: I have reduced the CBC mode to work on memory buffer only.
++ * Higher routines should use an intermediate buffer and handle
++ * their output seperately (mainly so the data can be flushed
++ * in one chunk, not seperate 16 byte blocks...)
++ *
++ * @param in The plaintext.
++ * @param out The ciphertext
++ * @param size how much to encrypt
++ * @param tfdata: Pointer to the global data structure containing session keys.
++ * @return none
++ */
++void _TwoFish_BlockCrypt(u_int8_t *in,u_int8_t *out,unsigned long size,int decrypt,TWOFISH *tfdata)
++{ u_int8_t PnMinusOne[TwoFish_BLOCK_SIZE];
++ u_int8_t CnMinusOne[TwoFish_BLOCK_SIZE];
++ u_int8_t CBCplusCprime[TwoFish_BLOCK_SIZE];
++ u_int8_t Pn[TwoFish_BLOCK_SIZE];
++ u_int8_t *p,*pout;
++ unsigned long i;
++
++ /* here is where we implement CBC mode and cipher block stealing */
++ if(size==TwoFish_BLOCK_SIZE)
++ { /* if we are encrypting, CBC means we XOR the plain text block with the */
++ /* previous cipher text block before encrypting */
++ if(!decrypt && tfdata->qBlockDefined)
++ { for(p=in,i=0;i<TwoFish_BLOCK_SIZE;i++,p++)
++ Pn[i]=*p ^ tfdata->qBlockCrypt[i]; /* FK: I'm copying the xor'ed input into Pn... */
++ }
++ else
++ memcpy(Pn,in,TwoFish_BLOCK_SIZE); /* FK: same here. we work of Pn all the time. */
++
++ /* TwoFish block level encryption or decryption */
++ _TwoFish_BlockCrypt16(Pn,out,decrypt,tfdata);
++
++ /* if we are decrypting, CBC means we XOR the result of the decryption */
++ /* with the previous cipher text block to get the resulting plain text */
++ if(decrypt && tfdata->qBlockDefined)
++ { for (p=out,i=0;i<TwoFish_BLOCK_SIZE;i++,p++)
++ *p^=tfdata->qBlockPlain[i];
++ }
++
++ /* save the input and output blocks, since CBC needs these for XOR */
++ /* operations */
++ _TwoFish_qBlockPush(Pn,out,tfdata);
++ }
++ else
++ { /* cipher block stealing, we are at Pn, */
++ /* but since Cn-1 must now be replaced with CnC' */
++ /* we pop it off, and recalculate Cn-1 */
++
++ if(decrypt)
++ { /* We are on an odd block, and had to do cipher block stealing, */
++ /* so the PnMinusOne has to be derived differently. */
++
++ /* First we decrypt it into CBC and C' */
++ _TwoFish_qBlockPop(CnMinusOne,PnMinusOne,tfdata);
++ _TwoFish_BlockCrypt16(CnMinusOne,CBCplusCprime,decrypt,tfdata);
++
++ /* we then xor the first few bytes with the "in" bytes (Cn) */
++ /* to recover Pn, which we put in out */
++ for(p=in,pout=out,i=0;i<size;i++,p++,pout++)
++ *pout=*p ^ CBCplusCprime[i];
++
++ /* We now recover the original CnMinusOne, which consists of */
++ /* the first "size" bytes of "in" data, followed by the */
++ /* "Cprime" portion of CBCplusCprime */
++ for(p=in,i=0;i<size;i++,p++)
++ CnMinusOne[i]=*p;
++ for(;i<TwoFish_BLOCK_SIZE;i++)
++ CnMinusOne[i]=CBCplusCprime[i];
++
++ /* we now decrypt CnMinusOne to get PnMinusOne xored with Cn-2 */
++ _TwoFish_BlockCrypt16(CnMinusOne,PnMinusOne,decrypt,tfdata);
++
++ for(i=0;i<TwoFish_BLOCK_SIZE;i++)
++ PnMinusOne[i]=PnMinusOne[i] ^ tfdata->prevCipher[i];
++
++ /* So at this point, out has PnMinusOne */
++ _TwoFish_qBlockPush(CnMinusOne,PnMinusOne,tfdata);
++ _TwoFish_FlushOutput(tfdata->qBlockCrypt,TwoFish_BLOCK_SIZE,tfdata);
++ _TwoFish_FlushOutput(out,size,tfdata);
++ }
++ else
++ { _TwoFish_qBlockPop(PnMinusOne,CnMinusOne,tfdata);
++ memset(Pn,0,TwoFish_BLOCK_SIZE);
++ memcpy(Pn,in,size);
++ for(i=0;i<TwoFish_BLOCK_SIZE;i++)
++ Pn[i]^=CnMinusOne[i];
++ _TwoFish_BlockCrypt16(Pn,out,decrypt,tfdata);
++ _TwoFish_qBlockPush(Pn,out,tfdata); /* now we officially have Cn-1 */
++ _TwoFish_FlushOutput(tfdata->qBlockCrypt,TwoFish_BLOCK_SIZE,tfdata);
++ _TwoFish_FlushOutput(CnMinusOne,size,tfdata); /* old Cn-1 becomes new partial Cn */
++ }
++ tfdata->qBlockDefined=FALSE;
++ }
++}
++
++void _TwoFish_qBlockPush(u_int8_t *p,u_int8_t *c,TWOFISH *tfdata)
++{ if(tfdata->qBlockDefined)
++ _TwoFish_FlushOutput(tfdata->qBlockCrypt,TwoFish_BLOCK_SIZE,tfdata);
++ memcpy(tfdata->prevCipher,tfdata->qBlockPlain,TwoFish_BLOCK_SIZE);
++ memcpy(tfdata->qBlockPlain,p,TwoFish_BLOCK_SIZE);
++ memcpy(tfdata->qBlockCrypt,c,TwoFish_BLOCK_SIZE);
++ tfdata->qBlockDefined=TRUE;
++}
++
++void _TwoFish_qBlockPop(u_int8_t *p,u_int8_t *c,TWOFISH *tfdata)
++{ memcpy(p,tfdata->qBlockPlain,TwoFish_BLOCK_SIZE );
++ memcpy(c,tfdata->qBlockCrypt,TwoFish_BLOCK_SIZE );
++ tfdata->qBlockDefined=FALSE;
++}
++
++/* Reset's the CBC flag and zero's PrevCipher (through qBlockPlain) (important) */
++void _TwoFish_ResetCBC(TWOFISH *tfdata)
++{ tfdata->qBlockDefined=FALSE;
++ memset(tfdata->qBlockPlain,0,TwoFish_BLOCK_SIZE);
++}
++
++void _TwoFish_FlushOutput(u_int8_t *b,unsigned long len,TWOFISH *tfdata)
++{ unsigned long i;
++
++ for(i=0;i<len && !tfdata->dontflush;i++)
++ *tfdata->output++ = *b++;
++ tfdata->dontflush=FALSE;
++}
++
++void _TwoFish_BlockCrypt16(u_int8_t *in,u_int8_t *out,bool decrypt,TWOFISH *tfdata)
++{ u_int32_t x0,x1,x2,x3;
++ u_int32_t k,t0,t1,R;
++
++
++ x0=*in++;
++ x0|=(*in++ << 8 );
++ x0|=(*in++ << 16);
++ x0|=(*in++ << 24);
++ x1=*in++;
++ x1|=(*in++ << 8 );
++ x1|=(*in++ << 16);
++ x1|=(*in++ << 24);
++ x2=*in++;
++ x2|=(*in++ << 8 );
++ x2|=(*in++ << 16);
++ x2|=(*in++ << 24);
++ x3=*in++;
++ x3|=(*in++ << 8 );
++ x3|=(*in++ << 16);
++ x3|=(*in++ << 24);
++
++ if(decrypt)
++ { x0 ^= tfdata->subKeys[4]; /* swap input and output whitening keys when decrypting */
++ x1 ^= tfdata->subKeys[5];
++ x2 ^= tfdata->subKeys[6];
++ x3 ^= tfdata->subKeys[7];
++
++ k = 7+(TwoFish_ROUNDS*2);
++ for (R = 0; R < TwoFish_ROUNDS; R += 2)
++ { t0 = _TwoFish_Fe320( tfdata->sBox, x0);
++ t1 = _TwoFish_Fe323( tfdata->sBox, x1);
++ x3 ^= t0 + (t1<<1) + tfdata->subKeys[k--];
++ x3 = x3 >> 1 | x3 << 31;
++ x2 = x2 << 1 | x2 >> 31;
++ x2 ^= t0 + t1 + tfdata->subKeys[k--];
++
++ t0 = _TwoFish_Fe320( tfdata->sBox, x2);
++ t1 = _TwoFish_Fe323( tfdata->sBox, x3);
++ x1 ^= t0 + (t1<<1) + tfdata->subKeys[k--];
++ x1 = x1 >> 1 | x1 << 31;
++ x0 = x0 << 1 | x0 >> 31;
++ x0 ^= t0 + t1 + tfdata->subKeys[k--];
++ }
++
++ x2 ^= tfdata->subKeys[0];
++ x3 ^= tfdata->subKeys[1];
++ x0 ^= tfdata->subKeys[2];
++ x1 ^= tfdata->subKeys[3];
++ }
++ else
++ { x0 ^= tfdata->subKeys[0];
++ x1 ^= tfdata->subKeys[1];
++ x2 ^= tfdata->subKeys[2];
++ x3 ^= tfdata->subKeys[3];
++
++ k = 8;
++ for (R = 0; R < TwoFish_ROUNDS; R += 2)
++ { t0 = _TwoFish_Fe320( tfdata->sBox, x0);
++ t1 = _TwoFish_Fe323( tfdata->sBox, x1);
++ x2 ^= t0 + t1 + tfdata->subKeys[k++];
++ x2 = x2 >> 1 | x2 << 31;
++ x3 = x3 << 1 | x3 >> 31;
++ x3 ^= t0 + (t1<<1) + tfdata->subKeys[k++];
++
++ t0 = _TwoFish_Fe320( tfdata->sBox, x2);
++ t1 = _TwoFish_Fe323( tfdata->sBox, x3);
++ x0 ^= t0 + t1 + tfdata->subKeys[k++];
++ x0 = x0 >> 1 | x0 << 31;
++ x1 = x1 << 1 | x1 >> 31;
++ x1 ^= t0 + (t1<<1) + tfdata->subKeys[k++];
++ }
++
++ x2 ^= tfdata->subKeys[4];
++ x3 ^= tfdata->subKeys[5];
++ x0 ^= tfdata->subKeys[6];
++ x1 ^= tfdata->subKeys[7];
++ }
++
++ *out++ = (u_int8_t)(x2 );
++ *out++ = (u_int8_t)(x2 >> 8);
++ *out++ = (u_int8_t)(x2 >> 16);
++ *out++ = (u_int8_t)(x2 >> 24);
++
++ *out++ = (u_int8_t)(x3 );
++ *out++ = (u_int8_t)(x3 >> 8);
++ *out++ = (u_int8_t)(x3 >> 16);
++ *out++ = (u_int8_t)(x3 >> 24);
++
++ *out++ = (u_int8_t)(x0 );
++ *out++ = (u_int8_t)(x0 >> 8);
++ *out++ = (u_int8_t)(x0 >> 16);
++ *out++ = (u_int8_t)(x0 >> 24);
++
++ *out++ = (u_int8_t)(x1 );
++ *out++ = (u_int8_t)(x1 >> 8);
++ *out++ = (u_int8_t)(x1 >> 16);
++ *out++ = (u_int8_t)(x1 >> 24);
++}
++
++/**
++ * Use (12, 8) Reed-Solomon code over GF(256) to produce a key S-box
++ * 32-bit entity from two key material 32-bit entities.
++ *
++ * @param k0 1st 32-bit entity.
++ * @param k1 2nd 32-bit entity.
++ * @return Remainder polynomial generated using RS code
++ */
++u_int32_t _TwoFish_RS_MDS_Encode(u_int32_t k0,u_int32_t k1)
++{ u_int32_t i,r;
++
++ for(r=k1,i=0;i<4;i++) /* shift 1 byte at a time */
++ TwoFish_RS_rem(r);
++ r ^= k0;
++ for(i=0;i<4;i++)
++ TwoFish_RS_rem(r);
++
++ return r;
++}
++
++u_int32_t _TwoFish_F32(u_int32_t k64Cnt,u_int32_t x,u_int32_t *k32)
++{ u_int8_t b0,b1,b2,b3;
++ u_int32_t k0,k1,k2,k3,result = 0;
++
++ b0=TwoFish_b0(x);
++ b1=TwoFish_b1(x);
++ b2=TwoFish_b2(x);
++ b3=TwoFish_b3(x);
++ k0=k32[0];
++ k1=k32[1];
++ k2=k32[2];
++ k3=k32[3];
++
++ switch (k64Cnt & 3)
++ { case 1: /* 64-bit keys */
++ result =
++ TwoFish_MDS[0][(TwoFish_P[TwoFish_P_01][b0] & 0xFF) ^ TwoFish_b0(k0)] ^
++ TwoFish_MDS[1][(TwoFish_P[TwoFish_P_11][b1] & 0xFF) ^ TwoFish_b1(k0)] ^
++ TwoFish_MDS[2][(TwoFish_P[TwoFish_P_21][b2] & 0xFF) ^ TwoFish_b2(k0)] ^
++ TwoFish_MDS[3][(TwoFish_P[TwoFish_P_31][b3] & 0xFF) ^ TwoFish_b3(k0)];
++ break;
++ case 0: /* 256-bit keys (same as 4) */
++ b0 = (TwoFish_P[TwoFish_P_04][b0] & 0xFF) ^ TwoFish_b0(k3);
++ b1 = (TwoFish_P[TwoFish_P_14][b1] & 0xFF) ^ TwoFish_b1(k3);
++ b2 = (TwoFish_P[TwoFish_P_24][b2] & 0xFF) ^ TwoFish_b2(k3);
++ b3 = (TwoFish_P[TwoFish_P_34][b3] & 0xFF) ^ TwoFish_b3(k3);
++
++ case 3: /* 192-bit keys */
++ b0 = (TwoFish_P[TwoFish_P_03][b0] & 0xFF) ^ TwoFish_b0(k2);
++ b1 = (TwoFish_P[TwoFish_P_13][b1] & 0xFF) ^ TwoFish_b1(k2);
++ b2 = (TwoFish_P[TwoFish_P_23][b2] & 0xFF) ^ TwoFish_b2(k2);
++ b3 = (TwoFish_P[TwoFish_P_33][b3] & 0xFF) ^ TwoFish_b3(k2);
++ case 2: /* 128-bit keys (optimize for this case) */
++ result =
++ TwoFish_MDS[0][(TwoFish_P[TwoFish_P_01][(TwoFish_P[TwoFish_P_02][b0] & 0xFF) ^ TwoFish_b0(k1)] & 0xFF) ^ TwoFish_b0(k0)] ^
++ TwoFish_MDS[1][(TwoFish_P[TwoFish_P_11][(TwoFish_P[TwoFish_P_12][b1] & 0xFF) ^ TwoFish_b1(k1)] & 0xFF) ^ TwoFish_b1(k0)] ^
++ TwoFish_MDS[2][(TwoFish_P[TwoFish_P_21][(TwoFish_P[TwoFish_P_22][b2] & 0xFF) ^ TwoFish_b2(k1)] & 0xFF) ^ TwoFish_b2(k0)] ^
++ TwoFish_MDS[3][(TwoFish_P[TwoFish_P_31][(TwoFish_P[TwoFish_P_32][b3] & 0xFF) ^ TwoFish_b3(k1)] & 0xFF) ^ TwoFish_b3(k0)];
++ break;
++ }
++ return result;
++}
++
++u_int32_t _TwoFish_Fe320(u_int32_t *lsBox,u_int32_t x)
++{ return lsBox[ TwoFish_b0(x)<<1 ]^
++ lsBox[ ((TwoFish_b1(x)<<1)|1)]^
++ lsBox[0x200+ (TwoFish_b2(x)<<1) ]^
++ lsBox[0x200+((TwoFish_b3(x)<<1)|1)];
++}
++
++u_int32_t _TwoFish_Fe323(u_int32_t *lsBox,u_int32_t x)
++{ return lsBox[ (TwoFish_b3(x)<<1) ]^
++ lsBox[ ((TwoFish_b0(x)<<1)|1)]^
++ lsBox[0x200+ (TwoFish_b1(x)<<1) ]^
++ lsBox[0x200+((TwoFish_b2(x)<<1)|1)];
++}
++
++u_int32_t _TwoFish_Fe32(u_int32_t *lsBox,u_int32_t x,u_int32_t R)
++{ return lsBox[ 2*TwoFish__b(x,R ) ]^
++ lsBox[ 2*TwoFish__b(x,R+1)+1]^
++ lsBox[0x200+2*TwoFish__b(x,R+2) ]^
++ lsBox[0x200+2*TwoFish__b(x,R+3)+1];
++}
++
++
++#endif
+diff -ruN snort-2.9.2.2/src/twofish.h snort-2.9.2.2_bkup/src/twofish.h
+--- snort-2.9.2.2/src/twofish.h 1969-12-31 16:00:00.000000000 -0800
++++ snort-2.9.2.2_bkup/src/twofish.h 2012-04-08 20:34:57.389687124 -0700
+@@ -0,0 +1,276 @@
++/* $Id: twofish.h,v 2.1 2008/12/15 20:36:05 fknobbe Exp $
++ *
++ *
++ * Copyright (C) 1997-2000 The Cryptix Foundation Limited.
++ * Copyright (C) 2000 Farm9.
++ * Copyright (C) 2001 Frank Knobbe.
++ * All rights reserved.
++ *
++ * For Cryptix code:
++ * Use, modification, copying and distribution of this software is subject
++ * the terms and conditions of the Cryptix General Licence. You should have
++ * received a copy of the Cryptix General Licence along with this library;
++ * if not, you can download a copy from http://www.cryptix.org/ .
++ *
++ * For Farm9:
++ * --- jojo@farm9.com, August 2000, converted from Java to C++, added CBC mode and
++ * ciphertext stealing technique, added AsciiTwofish class for easy encryption
++ * decryption of text strings
++ *
++ * Frank Knobbe <frank@knobbe.us>:
++ * --- April 2001, converted from C++ to C, prefixed global variables
++ * with TwoFish, substituted some defines, changed functions to make use of
++ * variables supplied in a struct, modified and added routines for modular calls.
++ * Cleaned up the code so that defines are used instead of fixed 16's and 32's.
++ * Created two general purpose crypt routines for one block and multiple block
++ * encryption using Joh's CBC code.
++ * Added crypt routines that use a header (with a magic and data length).
++ * (Basically a major rewrite).
++ *
++ * Note: Routines labeled _TwoFish are private and should not be used
++ * (or with extreme caution).
++ *
++ */
++
++#ifndef __TWOFISH_LIBRARY_HEADER__
++#define __TWOFISH_LIBRARY_HEADER__
++
++#ifndef FALSE
++#define FALSE 0
++#endif
++#ifndef TRUE
++#define TRUE !FALSE
++#endif
++#ifndef bool
++#define bool int
++#endif
++
++
++/* Constants */
++
++#define TwoFish_DEFAULT_PW "SnortHas2FishEncryptionRoutines!" /* default password (not more than 32 chars) */
++#define TwoFish_MAGIC "TwoFish" /* to indentify a successful decryption */
++
++enum
++{ TwoFish_KEY_SIZE = 256, /* Valid values: 64, 128, 192, 256 */
++ /* User 256, other key sizes have not been tested. */
++ /* (But should work. I substituted as much as */
++ /* I could with this define.) */
++ TwoFish_ROUNDS = 16,
++ TwoFish_BLOCK_SIZE = 16, /* bytes in a data-block */
++ TwoFish_KEY_LENGTH = TwoFish_KEY_SIZE/8, /* 32= 256-bit key */
++ TwoFish_TOTAL_SUBKEYS = 4+4+2*TwoFish_ROUNDS,
++ TwoFish_MAGIC_LEN = TwoFish_BLOCK_SIZE-8,
++ TwoFish_SK_BUMP = 0x01010101,
++ TwoFish_SK_ROTL = 9,
++ TwoFish_P_00 = 1,
++ TwoFish_P_01 = 0,
++ TwoFish_P_02 = 0,
++ TwoFish_P_03 = TwoFish_P_01 ^ 1,
++ TwoFish_P_04 = 1,
++ TwoFish_P_10 = 0,
++ TwoFish_P_11 = 0,
++ TwoFish_P_12 = 1,
++ TwoFish_P_13 = TwoFish_P_11 ^ 1,
++ TwoFish_P_14 = 0,
++ TwoFish_P_20 = 1,
++ TwoFish_P_21 = 1,
++ TwoFish_P_22 = 0,
++ TwoFish_P_23 = TwoFish_P_21 ^ 1,
++ TwoFish_P_24 = 0,
++ TwoFish_P_30 = 0,
++ TwoFish_P_31 = 1,
++ TwoFish_P_32 = 1,
++ TwoFish_P_33 = TwoFish_P_31 ^ 1,
++ TwoFish_P_34 = 1,
++ TwoFish_GF256_FDBK = 0x169,
++ TwoFish_GF256_FDBK_2 = 0x169 / 2,
++ TwoFish_GF256_FDBK_4 = 0x169 / 4,
++ TwoFish_RS_GF_FDBK = 0x14D, /* field generator */
++ TwoFish_MDS_GF_FDBK = 0x169 /* primitive polynomial for GF(256) */
++};
++
++
++/* Global data structure for callers */
++
++typedef struct
++{ u_int32_t sBox[4 * 256]; /* Key dependent S-box */
++ u_int32_t subKeys[TwoFish_TOTAL_SUBKEYS]; /* Subkeys */
++ u_int8_t key[TwoFish_KEY_LENGTH]; /* Encryption Key */
++ u_int8_t *output; /* Pointer to output buffer */
++ u_int8_t qBlockPlain[TwoFish_BLOCK_SIZE]; /* Used by CBC */
++ u_int8_t qBlockCrypt[TwoFish_BLOCK_SIZE];
++ u_int8_t prevCipher[TwoFish_BLOCK_SIZE];
++ struct /* Header for crypt functions. Has to be at least one block long. */
++ { u_int32_t salt; /* Random salt in first block (will salt the rest through CBC) */
++ u_int8_t length[4]; /* The amount of data following the header */
++ u_int8_t magic[TwoFish_MAGIC_LEN]; /* Magic to identify successful decryption */
++ } header;
++ bool qBlockDefined;
++ bool dontflush;
++} TWOFISH;
++
++#ifndef __TWOFISH_LIBRARY_SOURCE__
++
++extern bool TwoFish_srand; /* if set to TRUE (default), first call of TwoFishInit will seed rand(); */
++ /* call of TwoFishInit */
++#endif
++
++
++/**** Public Functions ****/
++
++/* TwoFish Initialization
++ *
++ * This routine generates a global data structure for use with TwoFish,
++ * initializes important values (such as subkeys, sBoxes), generates subkeys
++ * and precomputes the MDS matrix if not already done.
++ *
++ * Input: User supplied password (will be appended by default password of 'SnortHas2FishEncryptionRoutines!')
++ *
++ * Output: Pointer to TWOFISH structure. This data structure contains key dependent data.
++ * This pointer is used with all other crypt functions.
++ */
++TWOFISH *TwoFishInit(char *userkey);
++
++
++/* TwoFish Destroy
++ *
++ * Nothing else but a free...
++ *
++ * Input: Pointer to the TwoFish structure.
++ *
++ */
++void TwoFishDestroy(TWOFISH *tfdata);
++
++
++/* TwoFish Alloc
++ *
++ * Allocates enough memory for the output buffer as required.
++ *
++ * Input: Length of the plaintext.
++ * Boolean flag for BinHex Output.
++ * Pointer to the TwoFish structure.
++ *
++ * Output: Returns a pointer to the memory allocated.
++ */
++void *TwoFishAlloc(unsigned long len,bool binhex,bool decrypt,TWOFISH *tfdata);
++
++
++/* TwoFish Free
++ *
++ * Free's the allocated buffer.
++ *
++ * Input: Pointer to the TwoFish structure
++ *
++ * Output: (none)
++ */
++void TwoFishFree(TWOFISH *tfdata);
++
++
++/* TwoFish Set Output
++ *
++ * If you want to allocate the output buffer yourself,
++ * then you can set it with this function.
++ *
++ * Input: Pointer to your output buffer
++ * Pointer to the TwoFish structure
++ *
++ * Output: (none)
++ */
++void TwoFishSetOutput(char *outp,TWOFISH *tfdata);
++
++
++/* TwoFish Raw Encryption
++ *
++ * Does not use header, but does use CBC (if more than one block has to be encrypted).
++ *
++ * Input: Pointer to the buffer of the plaintext to be encrypted.
++ * Pointer to the buffer receiving the ciphertext.
++ * The length of the plaintext buffer.
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes encrypted if successful, otherwise 0.
++ */
++unsigned long TwoFishEncryptRaw(char *in,char *out,unsigned long len,TWOFISH *tfdata);
++
++/* TwoFish Raw Decryption
++ *
++ * Does not use header, but does use CBC (if more than one block has to be decrypted).
++ *
++ * Input: Pointer to the buffer of the ciphertext to be decrypted.
++ * Pointer to the buffer receiving the plaintext.
++ * The length of the ciphertext buffer (at least one cipher block).
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes decrypted if successful, otherwise 0.
++ */
++unsigned long TwoFishDecryptRaw(char *in,char *out,unsigned long len,TWOFISH *tfdata);
++
++
++/* TwoFish Encryption
++ *
++ * Uses header and CBC. If the output area has not been intialized with TwoFishAlloc,
++ * this routine will alloc the memory. In addition, it will include a small 'header'
++ * containing the magic and some salt. That way the decrypt routine can check if the
++ * packet got decrypted successfully, and return 0 instead of garbage.
++ *
++ * Input: Pointer to the buffer of the plaintext to be encrypted.
++ * Pointer to the pointer to the buffer receiving the ciphertext.
++ * The pointer either points to user allocated output buffer space, or to NULL, in which case
++ * this routine will set the pointer to the buffer allocated through the struct.
++ * The length of the plaintext buffer.
++ * Can be -1 if the input is a null terminated string, in which case we'll count for you.
++ * Boolean flag for BinHex Output (if used, output will be twice as large as input).
++ * Note: BinHex conversion overwrites (converts) input buffer!
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes encrypted if successful, otherwise 0.
++ */
++unsigned long TwoFishEncrypt(char *in,char **out,signed long len,bool binhex,TWOFISH *tfdata);
++
++
++/* TwoFish Decryption
++ *
++ * Uses header and CBC. If the output area has not been intialized with TwoFishAlloc,
++ * this routine will alloc the memory. In addition, it will check the small 'header'
++ * containing the magic. If magic does not match we return 0. Otherwise we return the
++ * amount of bytes decrypted (should be the same as the length in the header).
++ *
++ * Input: Pointer to the buffer of the ciphertext to be decrypted.
++ * Pointer to the pointer to the buffer receiving the plaintext.
++ * The pointer either points to user allocated output buffer space, or to NULL, in which case
++ * this routine will set the pointer to the buffer allocated through the struct.
++ * The length of the ciphertext buffer.
++ * Can be -1 if the input is a null terminated binhex string, in which case we'll count for you.
++ * Boolean flag for BinHex Input (if used, plaintext will be half as large as input).
++ * Note: BinHex conversion overwrites (converts) input buffer!
++ * The TwoFish structure.
++ *
++ * Output: The amount of bytes decrypted if successful, otherwise 0.
++ */
++unsigned long TwoFishDecrypt(char *in,char **out,signed long len,bool binhex,TWOFISH *tfdata);
++
++
++/**** Private Functions ****/
++
++u_int8_t TwoFish__b(u_int32_t x,int n);
++void _TwoFish_BinHex(u_int8_t *buf,unsigned long len,bool bintohex);
++unsigned long _TwoFish_CryptRawCBC(char *in,char *out,unsigned long len,bool decrypt,TWOFISH *tfdata);
++unsigned long _TwoFish_CryptRaw16(char *in,char *out,unsigned long len,bool decrypt,TWOFISH *tfdata);
++unsigned long _TwoFish_CryptRaw(char *in,char *out,unsigned long len,bool decrypt,TWOFISH *tfdata);
++void _TwoFish_PrecomputeMDSmatrix(void);
++void _TwoFish_MakeSubKeys(TWOFISH *tfdata);
++void _TwoFish_qBlockPush(u_int8_t *p,u_int8_t *c,TWOFISH *tfdata);
++void _TwoFish_qBlockPop(u_int8_t *p,u_int8_t *c,TWOFISH *tfdata);
++void _TwoFish_ResetCBC(TWOFISH *tfdata);
++void _TwoFish_FlushOutput(u_int8_t *b,unsigned long len,TWOFISH *tfdata);
++void _TwoFish_BlockCrypt(u_int8_t *in,u_int8_t *out,unsigned long size,int decrypt,TWOFISH *tfdata);
++void _TwoFish_BlockCrypt16(u_int8_t *in,u_int8_t *out,bool decrypt,TWOFISH *tfdata);
++u_int32_t _TwoFish_RS_MDS_Encode(u_int32_t k0,u_int32_t k1);
++u_int32_t _TwoFish_F32(u_int32_t k64Cnt,u_int32_t x,u_int32_t *k32);
++u_int32_t _TwoFish_Fe320(u_int32_t *lsBox,u_int32_t x);
++u_int32_t _TwoFish_Fe323(u_int32_t *lsBox,u_int32_t x);
++u_int32_t _TwoFish_Fe32(u_int32_t *lsBox,u_int32_t x,u_int32_t R);
++
++
++#endif
projects / openwrt / svn-archive / archive.git / commitdiff