--- Begin Message ---
Package: snort
Version: 2.8.4.1-6
Severity: wishlist
attached a patch to integrate the snortsam snort plugin. The plugin
communicates with the snortsam daemon to allow secure automated blocking
of IP addresses on firewalls based on snort events.
the snortsam daemon is not included.
snortsam-2.8.4.1.diff is taken from
http://www.snortsam.net/files/snort-plugin/snortsam-2.8.4.1.diff.gz
snortsam homepage:
http://www.snortsam.net/
this patch patches:
debian/control
debian/rules
this patch creates:
debian/patches/series
debian/patches/snortsam-2.8.4.1.diff
- Thomas
diff -u --recursive --new-file snort-2.8.4.1.orig/debian/control snort-2.8.4.1/debian/control
--- snort-2.8.4.1.orig/debian/control 2009-12-13 14:17:14.000000000 +0100
+++ snort-2.8.4.1/debian/control 2009-12-13 14:00:50.350527402 +0100
@@ -3,7 +3,7 @@
Priority: optional
Maintainer: Javier Fernandez-Sanguino Pen~a <[email protected]>
Uploaders: Pascal Hakim <[email protected]>
-Build-Depends: libnet1-dev, libpcap0.8-dev, libpcre3-dev, debhelper (>= 4.1.13), libmysqlclient15-dev | libmysqlclient-dev, libpq-dev, po-debconf (>= 0.5.0), libprelude-dev, iptables-dev [!kfreebsd-i386 !kfreebsd-amd64 !hurd-i386], libgnutls-dev
+Build-Depends: libnet1-dev, libpcap0.8-dev, libpcre3-dev, debhelper (>= 4.1.13), libmysqlclient15-dev | libmysqlclient-dev, libpq-dev, po-debconf (>= 0.5.0), libprelude-dev, iptables-dev [!kfreebsd-i386 !kfreebsd-amd64 !hurd-i386], libgnutls-dev, quilt, autoconf, automake, libtool
Build-Depends-Indep: texlive, texlive-latex-base, gs-common
Standards-Version: 3.8.3
Homepage: http://www.snort.org/
diff -u --recursive --new-file snort-2.8.4.1.orig/debian/patches/series snort-2.8.4.1/debian/patches/series
--- snort-2.8.4.1.orig/debian/patches/series 1970-01-01 01:00:00.000000000 +0100
+++ snort-2.8.4.1/debian/patches/series 2009-12-13 13:59:21.502529675 +0100
@@ -0,0 +1 @@
+snortsam-2.8.4.1.diff
diff -u --recursive --new-file snort-2.8.4.1.orig/debian/patches/snortsam-2.8.4.1.diff snort-2.8.4.1/debian/patches/snortsam-2.8.4.1.diff
--- snort-2.8.4.1.orig/debian/patches/snortsam-2.8.4.1.diff 1970-01-01 01:00:00.000000000 +0100
+++ snort-2.8.4.1/debian/patches/snortsam-2.8.4.1.diff 2009-12-13 13:59:21.499261693 +0100
@@ -0,0 +1,2969 @@
+diff -ruN snort-2.8.4.1.orig/autojunk.sh snort-2.8.4.1/autojunk.sh
+--- snort-2.8.4.1.orig/autojunk.sh 1970-01-01 03:30:00.000000000 +0330
++++ snort-2.8.4.1/autojunk.sh 2009-06-23 16:40:44.000000000 +0430
+@@ -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-2.8.4.1.orig/src/Makefile.am snort-2.8.4.1/src/Makefile.am
+--- snort-2.8.4.1.orig/src/Makefile.am 2009-06-23 16:40:16.000000000 +0430
++++ snort-2.8.4.1/src/Makefile.am 2009-06-23 16:40:44.000000000 +0430
+@@ -50,7 +50,8 @@
+ pcap_pkthdr32.h \
+ cpuclock.h \
+ sf_types.h \
+-log_text.c log_text.h
++log_text.c log_text.h \
++twofish.c twofish.h
+
+ snort_LDADD = output-plugins/libspo.a \
+ detection-plugins/libspd.a \
+diff -ruN snort-2.8.4.1.orig/src/fatal.h snort-2.8.4.1/src/fatal.h
+--- snort-2.8.4.1.orig/src/fatal.h 1970-01-01 03:30:00.000000000 +0330
++++ snort-2.8.4.1/src/fatal.h 2009-06-23 16:40:44.000000000 +0430
+@@ -0,0 +1,40 @@
++/* $Id$ */
++/*
++** Copyright (C) 2002-2008 Sourcefire, Inc.
++** Copyright (C) 1998-2002 Martin Roesch <[email protected]>
++**
++** 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-2.8.4.1.orig/src/output-plugins/Makefile.am snort-2.8.4.1/src/output-plugins/Makefile.am
+--- snort-2.8.4.1.orig/src/output-plugins/Makefile.am 2009-06-23 16:40:16.000000000 +0430
++++ snort-2.8.4.1/src/output-plugins/Makefile.am 2009-06-23 16:40:44.000000000 +0430
+@@ -11,6 +11,7 @@
+ 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 \
+ spo_alert_prelude.c spo_alert_prelude.h 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-2.8.4.1.orig/src/output-plugins/spo_alert_fwsam.c snort-2.8.4.1/src/output-plugins/spo_alert_fwsam.c
+--- snort-2.8.4.1.orig/src/output-plugins/spo_alert_fwsam.c 1970-01-01 03:30:00.000000000 +0330
++++ snort-2.8.4.1/src/output-plugins/spo_alert_fwsam.c 2009-06-23 16:40:44.000000000 +0430
+@@ -0,0 +1,1380 @@
++/* $id: snortpatchb,v 1.2 2002/10/26 03:32:35 fknobbe Exp $
++**
++** spo_alert_fwsam.c
++**
++** Copyright (c) 2001-2004 Frank Knobbe <[email protected]>
++**
++** 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 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", NT_OUTPUT_ALERT, AlertFWsamInit);
++ RegisterPlugin("fwsam", AlertFWsamOptionInit, NULL, OPT_TYPE_ACTION);
++
++#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,pv.config_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,pv.config_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, NT_OUTPUT_ALERT, fwsamlist);
++ AddFuncToCleanExitList(AlertFWsamCleanExitFunc, fwsamlist);
++ AddFuncToRestartList(AlertFWsamRestartFunc, fwsamlist);
++}
++
++
++/* 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];
++ 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->how==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-2.8.4.1.orig/src/output-plugins/spo_alert_fwsam.h snort-2.8.4.1/src/output-plugins/spo_alert_fwsam.h
+--- snort-2.8.4.1.orig/src/output-plugins/spo_alert_fwsam.h 1970-01-01 03:30:00.000000000 +0330
++++ snort-2.8.4.1/src/output-plugins/spo_alert_fwsam.h 2009-06-23 16:40:44.000000000 +0430
+@@ -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 <[email protected]>
++**
++** 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-2.8.4.1.orig/src/plugbase.c snort-2.8.4.1/src/plugbase.c
+--- snort-2.8.4.1.orig/src/plugbase.c 2009-06-23 16:40:16.000000000 +0430
++++ snort-2.8.4.1/src/plugbase.c 2009-06-23 16:40:44.000000000 +0430
+@@ -127,6 +127,7 @@
+ #endif
+
+ #include "output-plugins/spo_alert_test.h"
++#include "output-plugins/spo_alert_fwsam.h"
+
+ PluginSignalFuncNode *PluginShutdownList = NULL;
+ PluginSignalFuncNode *PluginCleanExitList = NULL;
+@@ -1206,6 +1207,7 @@
+ #endif
+
+ AlertTestSetup();
++ AlertFWsamSetup();
+ }
+
+ void CleanupOutputPlugins(void)
+diff -ruN snort-2.8.4.1.orig/src/plugin_enum.h snort-2.8.4.1/src/plugin_enum.h
+--- snort-2.8.4.1.orig/src/plugin_enum.h 2009-06-23 16:40:16.000000000 +0430
++++ snort-2.8.4.1/src/plugin_enum.h 2009-06-23 16:40:44.000000000 +0430
+@@ -60,6 +60,7 @@
+ PLUGIN_URILEN_CHECK,
+ PLUGIN_DYNAMIC,
+ PLUGIN_FLOWBIT,
++ PLUGIN_FWSAM,
+ PLUGIN_MAX /* sentinel value */
+ };
+
+diff -ruN snort-2.8.4.1.orig/src/twofish.c snort-2.8.4.1/src/twofish.c
+--- snort-2.8.4.1.orig/src/twofish.c 1970-01-01 03:30:00.000000000 +0330
++++ snort-2.8.4.1/src/twofish.c 2008-12-16 00:06:05.000000000 +0330
+@@ -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:
++ * --- [email protected], 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 <[email protected]>:
++ * --- 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-2.8.4.1.orig/src/twofish.h snort-2.8.4.1/src/twofish.h
+--- snort-2.8.4.1.orig/src/twofish.h 1970-01-01 03:30:00.000000000 +0330
++++ snort-2.8.4.1/src/twofish.h 2008-12-16 00:06:05.000000000 +0330
+@@ -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:
++ * --- [email protected], 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 <[email protected]>:
++ * --- 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
+
diff -u --recursive --new-file snort-2.8.4.1.orig/debian/rules snort-2.8.4.1/debian/rules
--- snort-2.8.4.1.orig/debian/rules 2009-12-13 14:17:14.000000000 +0100
+++ snort-2.8.4.1/debian/rules 2009-12-13 14:04:50.018530443 +0100
@@ -4,6 +4,9 @@
# Sample debian/rules that uses debhelper. GNU copyright 1997 by Joey Hess.
# Some lines taken from debmake, by Christoph Lameter.
+
+include /usr/share/quilt/quilt.make
+
export DH_VERBOSE=1
TMP=`pwd`/debian
@@ -61,6 +64,8 @@
configure: configure-stamp
configure-stamp:
dh_testdir
+# configure snortsam
+ sh ./autojunk.sh
# Standard package support
./configure $(CONFFLAGS) \
--without-mysql \
@@ -68,7 +73,7 @@
touch $@
build-basic: build-basic-stamp
-build-basic-stamp: configure
+build-basic-stamp: $(QUILT_STAMPFN) configure
# NOTE: We don't clean the sources on the first compilation
dh_testdir
# Basic package (no BBDD support):
@@ -77,7 +82,7 @@
touch $@
build-pgsql: build-pgsql-stamp
-build-pgsql-stamp:
+build-pgsql-stamp: $(QUILT_STAMPFN)
dh_testdir
sh debian/clean_sources.sh
# PostgreSQL package:
@@ -90,7 +95,7 @@
touch $@
build-mysql: build-mysql-stamp
-build-mysql-stamp:
+build-mysql-stamp: $(QUILT_STAMPFN)
dh_testdir
sh debian/clean_sources.sh
# MySQL package:
@@ -102,7 +107,7 @@
touch $@
build-inline: build-inline-stamp
-build-inline-stamp:
+build-inline-stamp: $(QUILT_STAMPFN)
dh_testdir
sh debian/clean_sources.sh
# Inline support
--- End Message ---
