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BlackTDN :: Autenticação 2FA para Usuário Root no WSL

--- # naldodj-wsl-2FA ## Autenticação 2FA para Usuário Root no WSL ### Introdução O Windows Subsystem for Linux (WSL) é uma ferramenta poderosa que permite aos desenvolvedores executar um ambiente Linux diretamente no Windows. No entanto, a segurança é uma preocupação importante, especialmente quando se trata de acessar o usuário root. Neste post, vamos mostrar como configurar a autenticação de dois fatores (2FA) para o usuário root ao acessar o WSL, garantindo uma camada adicional de segurança. ### Objetivo Vamos configurar um script de login que valida a senha do root e usa autenticação 2FA baseada em Time-based One-Time Password (TOTP), usando ferramentas comuns como `openssl`, `oathtool`, e `perl`. ### Passo 1: Instalar as Ferramentas Necessárias Primeiro, precisamos garantir que temos todas as ferramentas necessárias instaladas. Isso inclui `openssl`, `oathtool`, e `perl`. ```bash sudo apt-get update sudo apt-get install openssl oathtool perl ``` Para os scripts em Lua.

BlackTDN :: BTDNReguaTXT : Régua para arquivo Texto

 

BTDNReguaTXTDias desses precisei desenvolver uma rotina para importação de um arquivo texto com muitas colunas e o editor de texto que estava utilizando para verificar o arquivo não possuía uma régua que me possibilitasse  verificar o posicionamento das colunas e, em função disto, desenvolvi os três programas abaixo para me auxiliar na criação de uma régua que seria “plotada” no arquivo texto de forma a facilitar a identificação das colunas. O interessante nos programas são:

 

  1. Compilação condicional;
  2. Verificação de limites; e
  3. Formas diferentes de obter o mesmo resultado.

Ei-los:

u_regua01.prg

   1: #IFDEF TOTVS
   2:     #include "totvs.ch"
   3: #ELSE
   4:     #IFDEF PROTHEUS
   5:         #include "protheus.ch"
   6:     #ELSE
   7:         //compile:
   8:         //http://harbour-project.sourceforge.net/
   9:         //set include=%include%;c:\hb32\include\
  10:         //c:\hb32\bin\hbmk2.exe u_regua /dHARBOUR
  11:         //c:\hb32\bin\upx.exe u_regua.exe
  12:         #include "hb.ch"
  13:         #include "common.ch"
  14:         #include "fileio.ch"
  15:     #ENDIF
  16: #ENDIF
  17: #IFNDEF CRLF
  18:     #IFDEF HARBOUR
  19:         #DEFINE CRLF HB_OsNewLine()
  20:     #ELSE    
  21:         #DEFINE CRLF CHR(13)+CHR(10)
  22:     #ENDIF
  23: #ENDIF    
  24: /*
  25:     Programa    : U_Regua
  26:     Função      : Main/U_Regua
  27:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
  28:     Data        : 17/08/2012
  29:     Uso         : Regua para Arquivo Texto
  30: */
  31: #IFDEF HARBOUR
  32: Function Main( uBuffer )
  33:     #DEFINE MAX_BUFFER Int(((784384766*8)-(1073741824*3.68))/8) //(  Unrecoverable error 9009: hb_xrealloc can't reallocate memory )
  34:     Local nBuffer
  35:     DEFAULT uBuffer TO 220
  36: #ELSE
  37: User Function Regua01( uBuffer )
  38:     #DEFINE MAX_BUFFER (1048575) //( + 1: String size overflow! )
  39:     Local nBuffer
  40:     DEFAULT uBuffer := 220
  41: #ENDIF
  42:     if (ValType(uBuffer)=="C")
  43:         uBuffer := Val(uBuffer)
  44:     endif
  45:     nBuffer := Min(MAX_BUFFER,uBuffer)
  46: Return( Regua( nBuffer ) )
  47: /*
  48:     Programa    : U_Regua
  49:     Função      : Regua
  50:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
  51:     Data        : 17/08/2012
  52:     Uso         : Regua para Arquivo Texto
  53: */
  54: Static Function Regua(nBuffer)
  55:  
  56:     Local aB
  57:  
  58:     Local c05
  59:     Local c10
  60:  
  61:     Local cfH
  62:  
  63:     Local cCRLF
  64:     Local cRegua
  65:     
  66:     Local l05
  67:     Local l10
  68:  
  69:     Local n05
  70:     Local n10
  71:     Local n10I
  72:  
  73:     Local nfH
  74:     Local nRep
  75:  
  76:     n10     := (nBuffer/10)
  77:     n10I    := Int(n10)
  78:     nRep    := (n10I+(((n10)-n10I)*10))
  79:     nRep    := Min(nRep,9999999999)
  80:     cRegua  := SubStr(Replicate("1234567890",nRep),1,nBuffer)
  81:     aB      := StrToKArr(cRegua,"0")
  82:  
  83:     aFill(aB,NIL)
  84:  
  85:     c05     := ""
  86:     c10     := ""
  87:  
  88:     n05     := 0
  89:     n10     := 0
  90:  
  91:     aEval(aB,{|x,y| n05 := (y*5) ,;
  92:                     n10 := (y*10),;
  93:                     l05 := ( n05 <= 99999 ),;
  94:                     IF( l05 , c05 += Transform(n05,"99999") , NIL ),;
  95:                     l10 := ( n10 <= 9999999999 ),;
  96:                     IF( l10 , c10 += Transform(n10,"9999999999") , NIL );
  97:               };
  98:     )
  99:  
 100:     aEval(aB,{|x,y| l05 := ( ( n05 += 5 ) <= 99999 ),;
 101:                     IF( l05 , c05 += Transform(n05,"99999") , NIL );
 102:               };
 103:     )
 104:  
 105:     aSize(aB,0)
 106:  
 107:     aB := NIL
 108:  
 109:     c05 := SubStr(c05,1,(Int(Min(99999,nbuffer)/5)*5))
 110:     c10 := SubStr(c10,1,(Int(Min(9999999999,nbuffer)/10)*10))
 111:  
 112: #IFDEF HARBOUR
 113:     cfH := GetCurrentFolder()
 114:     IF .NOT.(subStr(cfH,-1)==hb_ps())
 115:         cfH += hb_ps()
 116:     EndIF
 117: #ELSE
 118:     cfH        := GetTempPath()
 119:     IF .NOT.(subStr(cfH,-1)$"\/")
 120:         IF ("/"$cfH)
 121:             cfH += "/"
 122:         Else
 123:             cfH += "\"
 124:         EndIF
 125:     EndIF
 126: #ENDIF
 127:     cfH += ProcName()
 128:     cfH += "-"
 129:     cfH += LTrim(Str(nBuffer))
 130:     cfH += "-"
 131:     cfH += DtoS(Date())
 132:     cfH += "-"
 133:     cfH += StrTran(Time(),":","-")
 134:     cfH += ".txt"
 135:  
 136:     nfH        := fCreate(Lower(cfH))
 137:  
 138:     if .NOT.(NtoL(fError()))
 139:         cCRLF  := CRLF
 140:         fWrite( nfH , c10 + cCRLF )
 141:         fWrite( nfH , c05 + cCRLF )
 142:         fWrite( nfH , cRegua + cCRLF )
 143:         fWrite( nfH , c05 + cCRLF )
 144:         fWrite( nfH , c10 + cCRLF )
 145:         fClose( nfH )
 146:     endif
 147:  
 148: return({cRegua,c05,c10})
 149:  
 150: #IFDEF HARBOUR
 151: /*
 152:     Programa    : U_Regua
 153:     Função      : StrToKArr
 154:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
 155:     Data        : 17/08/2012
 156:     Uso         : Transforma String em Array conforme Token
 157: */
 158: Static Function StrToKArr( cString , cToken , bEvalToken )
 159:  
 160:     Local aStrTokArr := {}
 161:     
 162:     Local cStr
 163:     
 164:     Local nATToken
 165:     Local nRealSize
 166:     
 167:     DEFAULT cToken        TO "+"
 168:     DEFAULT bEvalToken    TO { || .T. }
 169:  
 170:     if ( at( cToken , cString ) > 0 )
 171:         nRealSize    := len( cToken )
 172:         while ( ( nATToken := at( cToken , cString ) ) > 0 )
 173:             if ( nATToken > 1 )
 174:                 cStr := allTrim( subStr( cString , 1 , ( nATToken - 1 ) ) )
 175:                 cString := subStr( cString , ( nATToken + nRealSize ) )
 176:             Else
 177:                 cStr := ""
 178:                 cString := subStr( cString , ( nATToken + nRealSize ) )
 179:             endif
 180:             if eval( bEvalToken , @cStr )
 181:                 aAdd( aStrTokArr , cStr )
 182:             endif
 183:         end while
 184:         if ( len( cString ) > 0 )
 185:             cStr := cString
 186:             if eval( bEvalToken , @cStr )
 187:                 aAdd( aStrTokArr , cStr ) 
 188:             endif
 189:         endif
 190:     Else
 191:         cStr := cString
 192:         if eval( bEvalToken , @cStr )
 193:             aAdd( aStrTokArr , cStr )
 194:         endif
 195:     endif
 196:  
 197: return( aStrTokArr )
 198:  
 199: /*
 200:     Programa    : U_Regua
 201:     Função      : NtoL
 202:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
 203:     Data        : 17/08/2012
 204:     Uso         : Numerico para Logico
 205: */
 206: Static Function NtoL(n)
 207: Return(.NOT.(Empty(n)))
 208:  
 209: /*
 210:     Programa    : U_Regua
 211:     Função      : GetCurrentFolder
 212:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
 213:     Data        : 17/08/2012
 214:     Uso         : Retornar o Diretorio Corrente
 215: */
 216: Static Function GetCurrentFolder()
 217: Return( hb_CurDrive() + hb_osDriveSeparator() + hb_ps() + CurDir() )
 218:  
 219: #ENDIF


u_regua02.prg



   1: #IFDEF TOTVS
   2:     #include "totvs.ch"
   3: #ELSE
   4:     #IFDEF PROTHEUS
   5:         #include "protheus.ch"
   6:     #ELSE
   7:         //compile:
   8:         //http://harbour-project.sourceforge.net/
   9:         //set include=%include%;c:\hb32\include\
  10:         //c:\hb32\bin\hbmk2.exe u_regua /dHARBOUR
  11:         //c:\hb32\bin\upx.exe u_regua.exe
  12:         #include "hb.ch"
  13:         #include "common.ch"
  14:         #include "fileio.ch"
  15:     #ENDIF
  16: #ENDIF
  17: #IFNDEF CRLF
  18:     #IFDEF HARBOUR
  19:         #DEFINE CRLF HB_OsNewLine()
  20:     #ELSE    
  21:         #DEFINE CRLF CHR(13)+CHR(10)
  22:     #ENDIF
  23: #ENDIF    
  24: /*
  25:     Programa    : U_Regua
  26:     Função      : Main/U_Regua
  27:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
  28:     Data        : 17/08/2012
  29:     Uso         : Regua para Arquivo Texto
  30: */
  31: #IFDEF HARBOUR
  32: Function Main( uBuffer )
  33:     #DEFINE MAX_BUFFER Int(((784384766*8)-(1073741824*3.68))/8) //(  Unrecoverable error 9009: hb_xrealloc can't reallocate memory )
  34:     Local nBuffer
  35:     DEFAULT uBuffer TO 220
  36: #ELSE
  37: User Function Regua02( uBuffer )
  38:     #DEFINE MAX_BUFFER (1048575) //( + 1: String size overflow! )
  39:     Local nBuffer
  40:     DEFAULT uBuffer := 220
  41: #ENDIF
  42:     if (ValType(uBuffer)=="C")
  43:         uBuffer := Val(uBuffer)
  44:     endif
  45:     nBuffer := Min(MAX_BUFFER,uBuffer)
  46: Return( Regua( nBuffer ) )
  47: /*
  48:     Programa    : U_Regua
  49:     Função      : Regua
  50:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
  51:     Data        : 17/08/2012
  52:     Uso         : Regua para Arquivo Texto
  53: */
  54: Static Function Regua(nBuffer)
  55:  
  56:     Local c05
  57:     Local c10
  58:  
  59:     Local cfH
  60:  
  61:     Local cCRLF
  62:     Local cRegua
  63:     
  64:     Local l05
  65:     Local l10
  66:     
  67:     Local nAT
  68:  
  69:     Local n05
  70:     Local n10
  71:     Local n10I
  72:  
  73:     Local nfH
  74:     Local nRep
  75:     
  76:     n10     := (nBuffer/10)
  77:     n10I    := Int(n10)
  78:     nRep    := (n10I+(((n10)-n10I)*10))
  79:     nRep    := Min(nRep,9999999999)
  80:     cRegua  := SubStr(Replicate("1234567890",nRep),1,nBuffer)
  81:  
  82:     c05     := ""
  83:     c10     := ""
  84:  
  85:     n05     := 0
  86:     n10     := 0
  87:     nAT     := 0
  88:     
  89:     l05 := .T.    
  90:  
  91:     While NtoL( AT("0",subStr(cRegua,nAT+=10 ) ) )
  92:         l05 := ( nAT <= 99999 )
  93:         IF ( l05 )
  94:             c05 += Transform(n05+=5,"99999")
  95:         EndIF
  96:         l10 := ( nAT <= 9999999999 )
  97:         IF .NOT.( l10 )
  98:             Exit
  99:         EndIF
 100:         c10  += Transform(n10+=10,"9999999999")
 101:     End While
 102:  
 103:     nAT  := 0
 104:     IF ( l05 )
 105:     While NtoL( AT("0",subStr(cRegua,nAT+=10 ) ) )
 106:         n05 += 5
 107:         c05 += Transform(n05,"99999")
 108:     End While
 109:     ENDIF    
 110:  
 111:     c05 := SubStr(c05,1,(Int(Min(99999,nbuffer)/5)*5))
 112:     c10 := SubStr(c10,1,(Int(Min(9999999999,nbuffer)/10)*10))
 113:  
 114: #IFDEF HARBOUR
 115:     cfH := GetCurrentFolder()
 116:     IF .NOT.(subStr(cfH,-1)==hb_ps())
 117:         cfH += hb_ps()
 118:     EndIF
 119: #ELSE
 120:     cfH := GetTempPath()
 121:     IF .NOT.(subStr(cfH,-1)$"\/")
 122:         IF ("/"$cfH)
 123:             cfH += "/"
 124:         Else
 125:             cfH += "\"
 126:         EndIF
 127:     EndIF
 128: #ENDIF
 129:     cfH += ProcName()
 130:     cfH += "-"
 131:     cfH += LTrim(Str(nBuffer))
 132:     cfH += "-"
 133:     cfH += DtoS(Date())
 134:     cfH += "-"
 135:     cfH += StrTran(Time(),":","-")
 136:     cfH += ".txt"
 137:  
 138:     nfH := fCreate(Lower(cfH))
 139:  
 140:     if .NOT.(NtoL(fError()))
 141:         cCRLF := CRLF
 142:         fWrite( nfH , c10 + cCRLF )
 143:         fWrite( nfH , c05 + cCRLF )
 144:         fWrite( nfH , cRegua + cCRLF )
 145:         fWrite( nfH , c05 + cCRLF )
 146:         fWrite( nfH , c10 + cCRLF )
 147:         fClose( nfH )
 148:     endif
 149:  
 150: return({cRegua,c05,c10})
 151:  
 152: #IFDEF HARBOUR
 153: /*
 154:     Programa    : U_Regua
 155:     Função      : NtoL
 156:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
 157:     Data        : 17/08/2012
 158:     Uso         : Numerico para Logico
 159: */
 160: Static Function NtoL(n)
 161: Return(.NOT.(Empty(n)))
 162:  
 163: /*
 164:     Programa    : U_Regua
 165:     Função      : GetCurrentFolder
 166:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
 167:     Data        : 17/08/2012
 168:     Uso         : Retornar o Diretorio Corrente
 169: */
 170: Static Function GetCurrentFolder()
 171: Return( hb_CurDrive() + hb_osDriveSeparator() + hb_ps() + CurDir() )
 172:  
 173: #ENDIF

u_regua03.prg



   1: #IFDEF TOTVS
   2:     #include "totvs.ch"
   3: #ELSE
   4:     #IFDEF PROTHEUS
   5:         #include "protheus.ch"
   6:     #ELSE
   7:         //compile:
   8:         //http://harbour-project.sourceforge.net/
   9:         //set include=%include%;c:\hb32\include\
  10:         //c:\hb32\bin\hbmk2.exe u_regua /dHARBOUR
  11:         //c:\hb32\bin\upx.exe u_regua.exe
  12:         #include "hb.ch"
  13:         #include "common.ch"
  14:         #include "fileio.ch"
  15:     #ENDIF
  16: #ENDIF
  17: #IFNDEF CRLF
  18:     #IFDEF HARBOUR
  19:         #DEFINE CRLF HB_OsNewLine()
  20:     #ELSE    
  21:         #DEFINE CRLF CHR(13)+CHR(10)
  22:     #ENDIF
  23: #ENDIF    
  24: /*
  25:     Programa    : U_Regua
  26:     Função      : Main/U_Regua
  27:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
  28:     Data        : 17/08/2012
  29:     Uso         : Regua para Arquivo Texto
  30: */
  31: #IFDEF HARBOUR
  32: Function Main( uBuffer )
  33:     #DEFINE MAX_BUFFER Int(((784384766*8)-(1073741824*3.68))/8) //(  Unrecoverable error 9009: hb_xrealloc can't reallocate memory )
  34:     Local nBuffer
  35:     DEFAULT uBuffer TO 220
  36: #ELSE
  37: User Function Regua03( uBuffer )
  38:     #DEFINE MAX_BUFFER (1048575) //( + 1: String size overflow! )
  39:     Local nBuffer
  40:     DEFAULT uBuffer := 220
  41: #ENDIF
  42:     if (ValType(uBuffer)=="C")
  43:         uBuffer := Val(uBuffer)
  44:     endif
  45:     nBuffer := Min(MAX_BUFFER,uBuffer)
  46: Return( Regua( nBuffer ) )
  47: /*
  48:     Programa    : U_Regua
  49:     Função      : Regua
  50:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
  51:     Data        : 17/08/2012
  52:     Uso         : Regua para Arquivo Texto
  53: */
  54: Static Function Regua(nBuffer)
  55:  
  56:     Local c05
  57:     Local c10
  58:  
  59:     Local cfH
  60:  
  61:     Local cCRLF
  62:     Local cRegua
  63:     
  64:     Local l05
  65:     Local l10
  66:     
  67:     Local nAT
  68:  
  69:     Local n05
  70:     Local n10
  71:     Local n10I
  72:  
  73:     Local nfH
  74:     Local nRep
  75:     
  76:     n10     := (nBuffer/10)
  77:     n10I    := Int(n10)
  78:     nRep    := (n10I+(((n10)-n10I)*10))
  79:     nRep    := Min(nRep,9999999999)
  80:     cRegua  := SubStr(Replicate("1234567890",nRep),1,nBuffer)
  81:  
  82:     c05     := ""
  83:     c10     := ""
  84:  
  85:     n05     := 0
  86:     n10     := 0
  87:     nAT     := 0
  88:     
  89:     l05 := .T.    
  90:  
  91:     While ("0"==subStr(cRegua,nAT+=10,1))
  92:         l05 := ( nAT <= 99999 )
  93:         IF ( l05 )
  94:             c05 += Transform(n05+=5,"99999")
  95:         EndIF
  96:         l10 := ( nAT <= 9999999999 )
  97:         IF .NOT.( l10 )
  98:             Exit
  99:         EndIF
 100:         c10        += Transform(n10+=10,"9999999999")
 101:     End While
 102:  
 103:     nAT  := 0
 104:     IF ( l05 )
 105:         While ("0"==subStr(cRegua,nAT+=10,1))
 106:             l05 := ( nAT <= 99999 )
 107:             IF .NOT.( l05 )
 108:                 Exit
 109:             EndIF
 110:             c05 += Transform(n05+=5,"99999")
 111:         End While
 112:     ENDIF    
 113:  
 114:     c05 := SubStr(c05,1,(Int(Min(99999,nbuffer)/5)*5))
 115:     c10 := SubStr(c10,1,(Int(Min(9999999999,nbuffer)/10)*10))
 116:  
 117: #IFDEF HARBOUR
 118:     cfH := GetCurrentFolder()
 119:     IF .NOT.(subStr(cfH,-1)==hb_ps())
 120:         cfH += hb_ps()
 121:     EndIF
 122: #ELSE
 123:     cfH := GetTempPath()
 124:     IF .NOT.(subStr(cfH,-1)$"\/")
 125:         IF ("/"$cfH)
 126:             cfH += "/"
 127:         Else
 128:             cfH += "\"
 129:         EndIF
 130:     EndIF
 131: #ENDIF
 132:     cfH += ProcName()
 133:     cfH += "-"
 134:     cfH += LTrim(Str(nBuffer))
 135:     cfH += "-"
 136:     cfH += DtoS(Date())
 137:     cfH += "-"
 138:     cfH += StrTran(Time(),":","-")
 139:     cfH += ".txt"
 140:  
 141:     nfH := fCreate(Lower(cfH))
 142:  
 143:     if .NOT.(NtoL(fError()))
 144:         cCRLF := CRLF
 145:         fWrite( nfH , c10 + cCRLF )
 146:         fWrite( nfH , c05 + cCRLF )
 147:         fWrite( nfH , cRegua + cCRLF )
 148:         fWrite( nfH , c05 + cCRLF )
 149:         fWrite( nfH , c10 + cCRLF )
 150:         fClose( nfH )
 151:     endif
 152:  
 153: return({cRegua,c05,c10})
 154:  
 155: #IFDEF HARBOUR
 156: /*
 157:     Programa    : U_Regua
 158:     Função      : NtoL
 159:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
 160:     Data        : 17/08/2012
 161:     Uso         : Numerico para Logico
 162: */
 163: Static Function NtoL(n)
 164: Return(.NOT.(Empty(n)))
 165:  
 166: /*
 167:     Programa    : U_Regua
 168:     Função      : GetCurrentFolder
 169:     Autor       : Marinaldo de Jesus [ http://www.blacktdn.com.br ]
 170:     Data        : 17/08/2012
 171:     Uso         : Retornar o Diretorio Corrente
 172: */
 173: Static Function GetCurrentFolder()
 174: Return( hb_CurDrive() + hb_osDriveSeparator() + hb_ps() + CurDir() )
 175:  
 176: #ENDIF

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