airodump-ng.c

java softwar for you to send out the request

        st_cur = st_cur->next;
    }

    /* if it's a new client, add it */

    if( st_cur == NULL )
    {
        if( ! ( st_cur = (struct ST_info *) malloc(
                         sizeof( struct ST_info ) ) ) )
        {
            perror( "malloc failed" );
            return( 1 );
        }

        memset( st_cur, 0, sizeof( struct ST_info ) );

        if( st_1st == NULL )
            st_1st = st_cur;
        else
            st_prv->next  = st_cur;

        memcpy( st_cur->stmac, stmac, 6 );

        st_cur->prev = st_prv;
        st_cur->base = ap_cur;

        if( tv_sec == 0 )
        {
            st_cur->tinit = time( NULL );
            st_cur->tlast = time( NULL );
        }
        else
        {
            st_cur->tinit = tv_sec;
            st_cur->tlast = tv_sec;
        }

        st_cur->power = power;

        st_end = st_cur;
    }

    /* every 1s, update the last time seen & receive power */

    if( tv_sec == 0 )
        st_cur->tlast = time( NULL );
    else
        st_cur->tlast = tv_sec;

    if( ( h80211[1] & 3 ) == 1 )
        st_cur->power = power;

    st_cur->nb_pkt++;

skip_station:

    /* packet parsing: Beacon or Probe Response */

    if( h80211[0] == 0x80 ||
        h80211[0] == 0x50 )
    {
        if( ap_cur->crypt < 0 )
            ap_cur->crypt = ( h80211[34] & 0x10 ) >> 4;

        p = h80211 + 36;

        while( p < h80211 + pkh.caplen )
        {
            if( p + 2 + p[1] > h80211 + pkh.caplen )
                break;

            if( p[0] == 0x00 && p[1] > 0 && p[2] != '\0' &&
                ( p[1] > 1 || p[2] != ' ' ) )
            {
                /* found a non-cloaked ESSID */

                n = ( p[1] > 32 ) ? 32 : p[1];

                memset( ap_cur->essid, 0, 33 );
                memcpy( ap_cur->essid, p + 2, n );

                for( i = 0; i < n; i++ )
                    if( ap_cur->essid[i] < 32 ||
                      ( ap_cur->essid[i] > 126 && ap_cur->essid[i] < 160 ) )
                        ap_cur->essid[i] = '.';
            }

            if( p[0] == 0x01 || p[0] == 0x32 )
                ap_cur->speed = ( p[1 + p[1]] & 0x7F ) / 2;

            if( p[0] == 0x03 )
                ap_cur->chanl = p[2];

            p += 2 + p[1];
        }
    }

    /* packet parsing: Association Request */

    if( h80211[0] == 0x00 )
    {
        p = h80211 + 28;

        while( p < h80211 + pkh.caplen )
        {
            if( p + 2 + p[1] > h80211 + pkh.caplen )
                break;

            if( p[0] == 0x00 && p[1] > 0 && p[2] != '\0' &&
                ( p[1] > 1 || p[2] != ' ' ) )
            {
                /* found a non-cloaked ESSID */

                n = ( p[1] > 32 ) ? 32 : p[1];

                memset( ap_cur->essid, 0, 33 );
                memcpy( ap_cur->essid, p + 2, n );

                for( i = 0; i < n; i++ )
                    if( ap_cur->essid[i] < 32 ||
                      ( ap_cur->essid[i] > 126 && ap_cur->essid[i] < 160 ) )
                        ap_cur->essid[i] = '.';
            }

            p += 2 + p[1];
        }
    }

    /* packet parsing: some data */

    if( ap_cur->chanl == -1 )
        ap_cur->chanl = channel;

    if( ( h80211[0] & 0x0C ) == 0x08 )
    {
        /* check the SNAP header to see if data is encrypted */

        unsigned int z = ( ( h80211[1] & 3 ) != 3 ) ? 24 : 30;

        if( z + 26 > pkh.caplen )
            goto write_packet;

        if( h80211[z] == h80211[z + 1] && h80211[z + 2] == 0x03 )
        {
            if( ap_cur->crypt < 0 )
                ap_cur->crypt = 0;

            /* if ethertype == IPv4, find the LAN address */

            if( h80211[z + 6] == 0x08 && h80211[z + 7] == 0x00 &&
                ( h80211[1] & 3 ) == 0x01 )
                    memcpy( ap_cur->lanip, &h80211[z + 20], 4 );

            if( h80211[z + 6] == 0x08 && h80211[z + 7] == 0x06 )
                memcpy( ap_cur->lanip, &h80211[z + 22], 4 );
        }
        else
            ap_cur->crypt = 2 + ( ( h80211[z + 3] & 0x20 ) >> 5 );

        if( z + 10 > pkh.caplen )
            goto write_packet;

        if( ap_cur->crypt == 2 )
        {
            /* WEP: check if we've already seen this IV */

            if( ! uniqueiv_check( ap_cur->uiv_root, &h80211[z] ) )
            {
                /* first time seen IVs */

                if( f_ivs_out != NULL )
                {
                    unsigned char iv_info[64];

                    if( memcmp( prev_bssid, ap_cur->bssid, 6 ) == 0 )
                    {
                        iv_info[0] = 0xFF;
                        memcpy( iv_info + 1, &h80211[z    ], 3 );
                        memcpy( iv_info + 4, &h80211[z + 4], 2 );
                        n =  6;
                    }
                    else
                    {
                        memcpy( prev_bssid , ap_cur->bssid,  6 );
                        memcpy( iv_info    , ap_cur->bssid,  6 );
                        memcpy( iv_info + 6, &h80211[z    ], 3 );
                        memcpy( iv_info + 9, &h80211[z + 4], 2 );
                        n = 11;
                    }

                    if( fwrite( iv_info, 1, n, f_ivs_out ) != (size_t) n )
                    {
                        perror( "fwrite(IV info) failed" );
                        return( 1 );
                    }
                }

                uniqueiv_mark( ap_cur->uiv_root, &h80211[z] );

                ap_cur->nb_data++;
            }
        }
        else
            ap_cur->nb_data++;
    }

write_packet:

    if( f_cap_out != NULL )
    {
        struct timeval tv;

        gettimeofday( &tv, NULL );

        if( tv_sec == 0 )
        {
            pkh.tv_sec  = tv.tv_sec;
            pkh.tv_usec = ( tv.tv_usec & ~0x1ff ) + power;
        }
        else
        {
            pkh.tv_sec  = tv_sec;
            pkh.tv_usec = tv_usec;
        }

        if( pfh_out.magic == TCPDUMP_CIGAM )
        {
            SWAP32( pkh.tv_sec  );
            SWAP32( pkh.tv_usec );
            SWAP32( pkh.caplen  );
            SWAP32( pkh.len     );
        }

        n = sizeof( pkh );

        if( fwrite( &pkh, 1, n, f_cap_out ) != (size_t) n )
        {
            perror( "fwrite(packet header) failed" );
            return( 1 );
        }

        fflush( stdout );

        n = pkh.caplen;

        if( fwrite( h80211, 1, n, f_cap_out ) != (size_t) n )
        {
            perror( "fwrite(packet data) failed" );
            return( 1 );
        }

        fflush( stdout );
    }

    return( 0 );
}

void dump_print( int ws_row, int ws_col )
{
    int nlines;
    char strbuf[512];

    /* print some informations about each detected AP */

    fprintf( stderr, "\n BSSID              PWR  Beacons"
                     "   # Data  CH  MB  ENC   ESSID\n\n" );

    nlines = 5;

    ap_cur = ap_end;

    while( ap_cur != NULL )
    {
        if( f_cap_in == NULL && ( ap_cur->nb_pkt < 2 ||
              time( NULL ) - ap_cur->tlast > 120 ) )
        {
            ap_cur = ap_cur->prev;
            continue;
        }

        if( ws_row != 0 && nlines > ws_row )
            return;

        nlines++;

        fprintf( stderr, " %02X:%02X:%02X:%02X:%02X:%02X",
                ap_cur->bssid[0], ap_cur->bssid[1],
                ap_cur->bssid[2], ap_cur->bssid[3],
                ap_cur->bssid[4], ap_cur->bssid[5] );

        fprintf( stderr, "  %3d %8ld %8ld",
                 ap_cur->power,
                 ap_cur->nb_bcn,
                 ap_cur->nb_data );

        fprintf( stderr, " %3d %3d  ", ap_cur->chanl, ap_cur->speed );

        switch( ap_cur->crypt )
        {
            case  0: fprintf( stderr, "OPN " ); break;
            case  1: fprintf( stderr, "WEP?" ); break;
            case  2: fprintf( stderr, "WEP " ); break;
            case  3: fprintf( stderr, "WPA " ); break;
            default: fprintf( stderr, "    " ); break;
        }

        memset( strbuf, 0, sizeof( strbuf ) );
        snprintf( strbuf,  sizeof( strbuf ) - 1,
                  "%-32s", ap_cur->essid );
        strbuf[ws_col - 58] = '\0';
        fprintf( stderr, "  %s\n", strbuf );

        ap_cur = ap_cur->prev;
    }

    /* print some informations about each detected station */

    memset( strbuf, 0, ws_col );

    nlines += 3;

    if( ws_row != 0 && nlines > ws_row )
        return;

    memset( strbuf, 0x20, ws_col - 1 );
    fprintf( stderr, "%s\n", strbuf );

    memcpy( strbuf, " BSSID              STATION "
            "           PWR  Packets  ESSID", 58 );
    fprintf( stderr, "%s\n", strbuf );

    memset( strbuf, 0x20, ws_col - 1 );
    fprintf( stderr, "%s\n", strbuf );

    ap_cur = ap_end;

    while( ap_cur != NULL )
    {
        if( f_cap_in == NULL && ( ap_cur->nb_pkt < 2 ||
              time( NULL ) - ap_cur->tlast > 120 ) )
        {
            ap_cur = ap_cur->prev;
            continue;
        }

        if( ws_row != 0 && nlines > ws_row )
            return;

        st_cur = st_end;

        while( st_cur != NULL )
        {
            if( st_cur->base != ap_cur || ( f_cap_in == NULL &&
                  time( NULL ) - ap_cur->tlast > 120 ) )
            {
                st_cur = st_cur->prev;
                continue;
            }

            if( ws_row != 0 && nlines > ws_row )
                return;

            nlines++;

            fprintf( stderr, " %02X:%02X:%02X:%02X:%02X:%02X",
                    ap_cur->bssid[0], ap_cur->bssid[1],
                    ap_cur->bssid[2], ap_cur->bssid[3],
                    ap_cur->bssid[4], ap_cur->bssid[5] );

            fprintf( stderr, "  %02X:%02X:%02X:%02X:%02X:%02X",
                    st_cur->stmac[0], st_cur->stmac[1],
                    st_cur->stmac[2], st_cur->stmac[3],
                    st_cur->stmac[4], st_cur->stmac[5] );

            if( st_cur->power != -1 )
                fprintf( stderr, "  %3d", st_cur->power );
            else
                fprintf( stderr, "     " );

            fprintf( stderr, " %8ld", st_cur->nb_pkt );

            memset( strbuf, 0, sizeof( strbuf ) );
            snprintf( strbuf,  sizeof( strbuf ) - 1,
                      "%-32s", ap_cur->essid );
            strbuf[ws_col - 54] = '\0';
            fprintf( stderr, "  %s\n", strbuf );

            st_cur = st_cur->prev;
        }

        ap_cur = ap_cur->prev;
    }
}

void dump_write_csv( void )
{
    struct tm *ltime;

    if( f_csv_out == NULL )
        return;

    fseek( f_csv_out, 0, SEEK_SET );

    fprintf( f_csv_out,
        "\r\nBSSID, First time seen, Last time seen, Channel, Speed, "
        "Privacy, Power, # beacons, # data, LAN IP, ESSID\r\n" );

    ap_cur = ap_1st;

    while( ap_cur != NULL )
    {
        if( ap_cur->nb_pkt < 2 )
        {
            ap_cur = ap_cur->next;
            continue;
        }