mirror of
https://github.com/w23/xash3d-fwgs
synced 2024-12-16 06:00:33 +01:00
713 lines
14 KiB
C
713 lines
14 KiB
C
/*
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identification.c - unique id generation
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Copyright (C) 2017 mittorn
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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#include "common.h"
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#include <fcntl.h>
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#if !XASH_WIN32
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#include <dirent.h>
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#endif
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static char id_md5[33];
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static char id_customid[MAX_STRING];
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/*
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==========================================================
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simple 64-bit one-hash-func bloom filter
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should be enough to determine if device exist in identifier
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==========================================================
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*/
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typedef integer64 bloomfilter_t;
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static bloomfilter_t id;
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#define bf64_mask ((1U<<6)-1)
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bloomfilter_t BloomFilter_Process( const char *buffer, int size )
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{
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dword crc32;
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bloomfilter_t value = 0;
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if( size <= 0 || size > 512 )
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return 0;
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CRC32_Init( &crc32 );
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CRC32_ProcessBuffer( &crc32, buffer, size );
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while( crc32 )
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{
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value |= ((integer64)1) << ( crc32 & bf64_mask );
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crc32 = crc32 >> 6;
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}
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return value;
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}
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bloomfilter_t BloomFilter_ProcessStr( const char *buffer )
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{
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return BloomFilter_Process( buffer, Q_strlen( buffer ) );
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}
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uint BloomFilter_Weight( bloomfilter_t value )
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{
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int weight = 0;
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while( value )
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{
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if( value & 1 )
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weight++;
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value = value >> 1;
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#if _MSC_VER == 1200
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value &= 0x7FFFFFFFFFFFFFFF;
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#endif
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}
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return weight;
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}
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qboolean BloomFilter_ContainsString( bloomfilter_t filter, const char *str )
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{
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bloomfilter_t value = BloomFilter_ProcessStr( str );
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return (filter & value) == value;
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}
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/*
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=============================================
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IDENTIFICATION
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=============================================
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*/
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#define MAXBITS_GEN 30
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#define MAXBITS_CHECK MAXBITS_GEN + 6
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qboolean ID_ProcessFile( bloomfilter_t *value, const char *path );
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void ID_BloomFilter_f( void )
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{
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bloomfilter_t value = 0;
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int i;
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for( i = 1; i < Cmd_Argc(); i++ )
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value |= BloomFilter_ProcessStr( Cmd_Argv( i ) );
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Msg( "%d %016llX\n", BloomFilter_Weight( value ), value );
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// test
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// for( i = 1; i < Cmd_Argc(); i++ )
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// Msg( "%s: %d\n", Cmd_Argv( i ), BloomFilter_ContainsString( value, Cmd_Argv( i ) ) );
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}
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qboolean ID_VerifyHEX( const char *hex )
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{
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uint chars = 0;
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char prev = 0;
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qboolean monotonic = true; // detect 11:22...
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int weight = 0;
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while( *hex++ )
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{
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char ch = Q_tolower( *hex );
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if( ( ch >= 'a' && ch <= 'f') || ( ch >= '0' && ch <= '9' ) )
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{
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if( prev && ( ch - prev < -1 || ch - prev > 1 ) )
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monotonic = false;
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if( ch >= 'a' )
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chars |= 1 << (ch - 'a' + 10);
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else
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chars |= 1 << (ch - '0');
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prev = ch;
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}
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}
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if( monotonic )
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return false;
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while( chars )
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{
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if( chars & 1 )
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weight++;
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chars = chars >> 1;
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if( weight > 2 )
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return true;
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}
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return false;
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}
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void ID_VerifyHEX_f( void )
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{
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if( ID_VerifyHEX( Cmd_Argv( 1 ) ) )
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Msg( "Good\n" );
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else
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Msg( "Bad\n" );
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}
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#if XASH_LINUX
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qboolean ID_ProcessCPUInfo( bloomfilter_t *value )
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{
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int cpuinfofd = open( "/proc/cpuinfo", O_RDONLY );
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char buffer[1024], *pbuf, *pbuf2;
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int ret;
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if( cpuinfofd < 0 )
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return false;
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if( (ret = read( cpuinfofd, buffer, 1023 ) ) < 0 )
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return false;
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close( cpuinfofd );
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buffer[ret] = 0;
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if( !ret )
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return false;
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pbuf = Q_strstr( buffer, "Serial" );
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if( !pbuf )
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return false;
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pbuf += 6;
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if( ( pbuf2 = Q_strchr( pbuf, '\n' ) ) )
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*pbuf2 = 0;
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else
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pbuf2 = pbuf + Q_strlen( pbuf );
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if( !ID_VerifyHEX( pbuf ) )
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return false;
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*value |= BloomFilter_Process( pbuf, pbuf2 - pbuf );
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return true;
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}
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qboolean ID_ValidateNetDevice( const char *dev )
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{
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const char *prefix = "/sys/class/net";
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byte *pfile;
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int assignType;
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// These devices are fake, their mac address is generated each boot, while assign_type is 0
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if( !Q_strnicmp( dev, "ccmni", sizeof( "ccmni" ) ) ||
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!Q_strnicmp( dev, "ifb", sizeof( "ifb" ) ) )
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return false;
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pfile = FS_LoadDirectFile( va( "%s/%s/addr_assign_type", prefix, dev ), NULL );
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// if NULL, it may be old kernel
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if( pfile )
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{
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assignType = Q_atoi( (char*)pfile );
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Mem_Free( pfile );
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// check is MAC address is constant
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if( assignType != 0 )
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return false;
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}
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return true;
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}
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int ID_ProcessNetDevices( bloomfilter_t *value )
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{
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const char *prefix = "/sys/class/net";
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DIR *dir;
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struct dirent *entry;
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int count = 0;
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if( !( dir = opendir( prefix ) ) )
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return 0;
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while( ( entry = readdir( dir ) ) && BloomFilter_Weight( *value ) < MAXBITS_GEN )
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{
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if( !Q_strcmp( entry->d_name, "." ) || !Q_strcmp( entry->d_name, ".." ) )
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continue;
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if( !ID_ValidateNetDevice( entry->d_name ) )
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continue;
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count += ID_ProcessFile( value, va( "%s/%s/address", prefix, entry->d_name ) );
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}
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closedir( dir );
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return count;
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}
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int ID_CheckNetDevices( bloomfilter_t value )
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{
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const char *prefix = "/sys/class/net";
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DIR *dir;
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struct dirent *entry;
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int count = 0;
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bloomfilter_t filter = 0;
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if( !( dir = opendir( prefix ) ) )
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return 0;
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while( ( entry = readdir( dir ) ) )
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{
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if( !Q_strcmp( entry->d_name, "." ) || !Q_strcmp( entry->d_name, ".." ) )
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continue;
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if( !ID_ValidateNetDevice( entry->d_name ) )
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continue;
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if( ID_ProcessFile( &filter, va( "%s/%s/address", prefix, entry->d_name ) ) )
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count += ( value & filter ) == filter, filter = 0;
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}
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closedir( dir );
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return count;
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}
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void ID_TestCPUInfo_f( void )
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{
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bloomfilter_t value = 0;
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if( ID_ProcessCPUInfo( &value ) )
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Msg( "Got %016llX\n", value );
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else
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Msg( "Could not get serial\n" );
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}
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#endif
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qboolean ID_ProcessFile( bloomfilter_t *value, const char *path )
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{
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int fd = open( path, O_RDONLY );
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char buffer[256];
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int ret;
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if( fd < 0 )
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return false;
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if( (ret = read( fd, buffer, 255 ) ) < 0 )
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return false;
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close( fd );
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if( !ret )
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return false;
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buffer[ret] = 0;
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if( !ID_VerifyHEX( buffer ) )
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return false;
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*value |= BloomFilter_Process( buffer, ret );
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return true;
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}
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#if !XASH_WIN32
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int ID_ProcessFiles( bloomfilter_t *value, const char *prefix, const char *postfix )
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{
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DIR *dir;
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struct dirent *entry;
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int count = 0;
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if( !( dir = opendir( prefix ) ) )
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return 0;
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while( ( entry = readdir( dir ) ) && BloomFilter_Weight( *value ) < MAXBITS_GEN )
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{
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if( !Q_strcmp( entry->d_name, "." ) || !Q_strcmp( entry->d_name, ".." ) )
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continue;
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count += ID_ProcessFile( value, va( "%s/%s/%s", prefix, entry->d_name, postfix ) );
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}
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closedir( dir );
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return count;
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}
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int ID_CheckFiles( bloomfilter_t value, const char *prefix, const char *postfix )
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{
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DIR *dir;
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struct dirent *entry;
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int count = 0;
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bloomfilter_t filter = 0;
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if( !( dir = opendir( prefix ) ) )
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return 0;
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while( ( entry = readdir( dir ) ) )
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{
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if( !Q_strcmp( entry->d_name, "." ) || !Q_strcmp( entry->d_name, ".." ) )
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continue;
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if( ID_ProcessFile( &filter, va( "%s/%s/%s", prefix, entry->d_name, postfix ) ) )
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count += ( value & filter ) == filter, filter = 0;
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}
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closedir( dir );
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return count;
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}
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#else
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int ID_GetKeyData( HKEY hRootKey, char *subKey, char *value, LPBYTE data, DWORD cbData )
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{
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HKEY hKey;
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if( RegOpenKeyEx( hRootKey, subKey, 0, KEY_QUERY_VALUE, &hKey ) != ERROR_SUCCESS )
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return 0;
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if( RegQueryValueEx( hKey, value, NULL, NULL, data, &cbData ) != ERROR_SUCCESS )
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{
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RegCloseKey( hKey );
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return 0;
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}
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RegCloseKey( hKey );
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return 1;
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}
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int ID_SetKeyData( HKEY hRootKey, char *subKey, DWORD dwType, char *value, LPBYTE data, DWORD cbData)
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{
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HKEY hKey;
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if( RegCreateKey( hRootKey, subKey, &hKey ) != ERROR_SUCCESS )
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return 0;
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if( RegSetValueEx( hKey, value, 0, dwType, data, cbData ) != ERROR_SUCCESS )
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{
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RegCloseKey( hKey );
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return 0;
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}
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RegCloseKey( hKey );
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return 1;
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}
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#define BUFSIZE 4096
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int ID_RunWMIC(char *buffer, const char *cmdline)
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{
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HANDLE g_IN_Rd = NULL;
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HANDLE g_IN_Wr = NULL;
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HANDLE g_OUT_Rd = NULL;
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HANDLE g_OUT_Wr = NULL;
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DWORD dwRead;
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BOOL bSuccess = FALSE;
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SECURITY_ATTRIBUTES saAttr;
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STARTUPINFO si = {0};
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PROCESS_INFORMATION pi = {0};
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saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
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saAttr.bInheritHandle = TRUE;
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saAttr.lpSecurityDescriptor = NULL;
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CreatePipe( &g_IN_Rd, &g_IN_Wr, &saAttr, 0 );
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CreatePipe( &g_OUT_Rd, &g_OUT_Wr, &saAttr, 0 );
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SetHandleInformation( g_IN_Wr, HANDLE_FLAG_INHERIT, 0 );
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si.cb = sizeof(STARTUPINFO);
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si.dwFlags = STARTF_USESTDHANDLES;
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si.hStdInput = g_IN_Rd;
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si.hStdOutput = g_OUT_Wr;
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si.hStdError = g_OUT_Wr;
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si.wShowWindow = SW_HIDE;
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si.dwFlags |= STARTF_USESTDHANDLES;
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CreateProcess( NULL, (char*)cmdline, NULL, NULL, true, CREATE_NO_WINDOW , NULL, NULL, &si, &pi );
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CloseHandle( g_OUT_Wr );
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CloseHandle( g_IN_Wr );
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WaitForSingleObject( pi.hProcess, 500 );
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bSuccess = ReadFile( g_OUT_Rd, buffer, BUFSIZE, &dwRead, NULL );
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buffer[BUFSIZE-1] = 0;
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CloseHandle( g_IN_Rd );
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CloseHandle( g_OUT_Rd );
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return bSuccess;
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}
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int ID_ProcessWMIC( bloomfilter_t *value, const char *cmdline )
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{
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char buffer[BUFSIZE], token[BUFSIZE], *pbuf;
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int count = 0;
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if( !ID_RunWMIC( buffer, cmdline ) )
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return 0;
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pbuf = COM_ParseFile( buffer, token ); // Header
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while( pbuf = COM_ParseFile( pbuf, token ) )
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{
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if( !ID_VerifyHEX( token ) )
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continue;
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*value |= BloomFilter_ProcessStr( token );
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count ++;
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}
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return count;
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}
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int ID_CheckWMIC( bloomfilter_t value, const char *cmdline )
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{
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char buffer[BUFSIZE], token[BUFSIZE], *pbuf;
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int count = 0;
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if( !ID_RunWMIC( buffer, cmdline ) )
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return 0;
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pbuf = COM_ParseFile( buffer, token ); // Header
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while( pbuf = COM_ParseFile( pbuf, token ) )
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{
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bloomfilter_t filter;
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if( !ID_VerifyHEX( token ) )
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continue;
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filter = BloomFilter_ProcessStr( token );
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count += ( filter & value ) == filter;
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}
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return count;
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}
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#endif
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#if XASH_IOS
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char *IOS_GetUDID( void );
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#endif
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bloomfilter_t ID_GenerateRawId( void )
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{
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bloomfilter_t value = 0;
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int count = 0;
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#if XASH_LINUX
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#if XASH_ANDROID && !XASH_DEDICATED
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{
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const char *androidid = Android_GetAndroidID();
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if( androidid && ID_VerifyHEX( androidid ) )
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{
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value |= BloomFilter_ProcessStr( androidid );
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count ++;
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}
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}
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#endif
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count += ID_ProcessCPUInfo( &value );
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count += ID_ProcessFiles( &value, "/sys/block", "device/cid" );
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count += ID_ProcessNetDevices( &value );
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#endif
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#if XASH_WIN32
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count += ID_ProcessWMIC( &value, "wmic path win32_physicalmedia get SerialNumber " );
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count += ID_ProcessWMIC( &value, "wmic bios get serialnumber " );
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#endif
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#if XASH_IOS
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{
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value |= BloomFilter_ProcessStr(IOS_GetUDID());
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count ++;
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}
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#endif
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return value;
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}
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uint ID_CheckRawId( bloomfilter_t filter )
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{
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bloomfilter_t value = 0;
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int count = 0;
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#if XASH_LINUX
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#if XASH_ANDROID && !XASH_DEDICATED
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{
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const char *androidid = Android_GetAndroidID();
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if( androidid && ID_VerifyHEX( androidid ) )
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{
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value = BloomFilter_ProcessStr( androidid );
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count += (filter & value) == value;
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value = 0;
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}
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}
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#endif
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count += ID_CheckNetDevices( filter );
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count += ID_CheckFiles( filter, "/sys/block", "device/cid" );
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if( ID_ProcessCPUInfo( &value ) )
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count += (filter & value) == value;
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#endif
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#if XASH_WIN32
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count += ID_CheckWMIC( filter, "wmic path win32_physicalmedia get SerialNumber" );
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count += ID_CheckWMIC( filter, "wmic bios get serialnumber" );
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#endif
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#if XASH_IOS
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{
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value = BloomFilter_ProcessStr(IOS_GetUDID());
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count += (filter & value) == value;
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value = 0;
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}
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#endif
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#if 0
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Msg( "ID_CheckRawId: %d\n", count );
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#endif
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return count;
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}
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#define SYSTEM_XOR_MASK 0x10331c2dce4c91db
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#define GAME_XOR_MASK 0x7ffc48fbac1711f1
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void ID_Check( void )
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{
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uint weight = BloomFilter_Weight( id );
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uint mincount = weight >> 2;
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if( mincount < 1 )
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mincount = 1;
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if( weight > MAXBITS_CHECK )
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{
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id = 0;
|
|
#if 0
|
|
Msg( "ID_Check(): fail %d\n", weight );
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
if( ID_CheckRawId( id ) < mincount )
|
|
id = 0;
|
|
#if 0
|
|
Msg( "ID_Check(): success %d\n", weight );
|
|
#endif
|
|
}
|
|
|
|
const char *ID_GetMD5( void )
|
|
{
|
|
if( id_customid[0] )
|
|
return id_customid;
|
|
return id_md5;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
ID_SetCustomClientID
|
|
|
|
===============
|
|
*/
|
|
void GAME_EXPORT ID_SetCustomClientID( const char *id )
|
|
{
|
|
if( !id )
|
|
return;
|
|
|
|
Q_strncpy( id_customid, id, sizeof( id_customid ) );
|
|
}
|
|
|
|
void ID_Init( void )
|
|
{
|
|
MD5Context_t hash = {0};
|
|
byte md5[16];
|
|
int i;
|
|
|
|
Cmd_AddCommand( "bloomfilter", ID_BloomFilter_f, "print bloomfilter raw value of arguments set");
|
|
Cmd_AddCommand( "verifyhex", ID_VerifyHEX_f, "check if id source seems to be fake" );
|
|
#if XASH_LINUX
|
|
Cmd_AddCommand( "testcpuinfo", ID_TestCPUInfo_f, "try read cpu serial" );
|
|
#endif
|
|
|
|
#if XASH_ANDROID && !XASH_DEDICATED
|
|
sscanf( Android_LoadID(), "%016llX", &id );
|
|
if( id )
|
|
{
|
|
id ^= SYSTEM_XOR_MASK;
|
|
ID_Check();
|
|
}
|
|
|
|
#elif XASH_WIN32
|
|
{
|
|
CHAR szBuf[MAX_PATH];
|
|
ID_GetKeyData( HKEY_CURRENT_USER, "Software\\Xash3D\\", "xash_id", szBuf, MAX_PATH );
|
|
|
|
sscanf(szBuf, "%016llX", &id);
|
|
id ^= SYSTEM_XOR_MASK;
|
|
ID_Check();
|
|
}
|
|
#else
|
|
{
|
|
const char *home = getenv( "HOME" );
|
|
if( home )
|
|
{
|
|
FILE *cfg = fopen( va( "%s/.config/.xash_id", home ), "r" );
|
|
if( !cfg )
|
|
cfg = fopen( va( "%s/.local/.xash_id", home ), "r" );
|
|
if( !cfg )
|
|
cfg = fopen( va( "%s/.xash_id", home ), "r" );
|
|
if( cfg )
|
|
{
|
|
if( fscanf( cfg, "%016llX", &id ) > 0 )
|
|
{
|
|
id ^= SYSTEM_XOR_MASK;
|
|
ID_Check();
|
|
}
|
|
fclose( cfg );
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
if( !id )
|
|
{
|
|
const char *buf = (const char*) FS_LoadFile( ".xash_id", NULL, false );
|
|
if( buf )
|
|
{
|
|
sscanf( buf, "%016llX", &id );
|
|
id ^= GAME_XOR_MASK;
|
|
ID_Check();
|
|
}
|
|
}
|
|
if( !id )
|
|
id = ID_GenerateRawId();
|
|
|
|
MD5Init( &hash );
|
|
MD5Update( &hash, (byte *)&id, sizeof( id ) );
|
|
MD5Final( (byte*)md5, &hash );
|
|
|
|
for( i = 0; i < 16; i++ )
|
|
Q_sprintf( &id_md5[i*2], "%02hhx", md5[i] );
|
|
|
|
#if XASH_ANDROID && !XASH_DEDICATED
|
|
Android_SaveID( va("%016llX", id^SYSTEM_XOR_MASK ) );
|
|
#elif XASH_WIN32
|
|
{
|
|
CHAR Buf[MAX_PATH];
|
|
sprintf( Buf, "%016llX", id^SYSTEM_XOR_MASK );
|
|
ID_SetKeyData( HKEY_CURRENT_USER, "Software\\Xash3D\\", REG_SZ, "xash_id", Buf, Q_strlen(Buf) );
|
|
}
|
|
#else
|
|
{
|
|
const char *home = getenv( "HOME" );
|
|
if( home )
|
|
{
|
|
FILE *cfg = fopen( va( "%s/.config/.xash_id", home ), "w" );
|
|
if( !cfg )
|
|
cfg = fopen( va( "%s/.local/.xash_id", home ), "w" );
|
|
if( !cfg )
|
|
cfg = fopen( va( "%s/.xash_id", home ), "w" );
|
|
if( cfg )
|
|
{
|
|
fprintf( cfg, "%016llX", id^SYSTEM_XOR_MASK );
|
|
fclose( cfg );
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
FS_WriteFile( ".xash_id", va("%016llX", id^GAME_XOR_MASK), 16 );
|
|
#if 0
|
|
Msg("MD5 id: %s\nRAW id:%016llX\n", id_md5, id );
|
|
#endif
|
|
}
|