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Diff for scripts/shell/firewall/firewall.d/subnets/simplify-subnets.sh between version 1.5 and 1.6

version 1.5, 2018/05/08 00:20:40 version 1.6, 2018/05/08 00:51:39
Line 10 
Line 10 
 #  #
 # Changelog:  # Changelog:
 # 2018-05-07 - created  # 2018-05-07 - created
   # 2018-05-08 - merging multiple C-class into one B-class
   #              based on C-class subnets counting
 #  #
   
 # $Platon: scripts/shell/firewall/firewall.d/subnets/simplify-subnets.sh,v 1.4 2018/05/08 00:00:30 nepto Exp $  # $Platon: scripts/shell/firewall/firewall.d/subnets/simplify-subnets.sh,v 1.5 2018/05/08 00:20:40 nepto Exp $
   
 # Minimum amount of C-classes to be merged into one B-class  # Minimum amount of C-classes to be merged into one B-class
 MIN_C_CLASS_MERGE=120;  MIN_C_CLASS_MERGE=120;
Line 23  if [ -z "$SUBNET_FILE" ]; then
Line 25  if [ -z "$SUBNET_FILE" ]; then
         exit 1;          exit 1;
 fi  fi
   
   # Simple subnet implementation of pow()
   # It returns 1 for /24, 2 for /23, 4 for /22, and so on
   c_class_subnets_count () # {{{
   {
           local pow ret i
           pow=$(( 24 - $1 ))
           ret=1
           i=1
           while [ $i -le $pow ]; do
                   ret=$(( ret * 2 ))
                   i=$(( i + 1 ))
           done
           echo $ret;
   } # }}}
   
 prev_C='';  prev_C='';
 prev_B='';  prev_B='';
 cnt_CinB=1;  cnt_CinB=1;
Line 55  while IFS='' read -r line; do
Line 72  while IFS='' read -r line; do
                 to_write="$to_write"$'\n';                  to_write="$to_write"$'\n';
                 to_write="$to_write$subnet_C/$mask";                  to_write="$to_write$subnet_C/$mask";
                 prev_C="$subnet_C";                  prev_C="$subnet_C";
                 cnt_CinB=$(( cnt_CinB + 1 ));                  # /24=1, /23=2, /22=4, /21=8, ...
                   subnet_count="`c_class_subnets_count $mask`";
                   cnt_CinB=$(( cnt_CinB + subnet_count ));
                 continue;                  continue;
         fi          fi
   
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  Added in v.1.6
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