view libtomcrypt/build.sh @ 1790:42745af83b7d

Introduce extra delay before closing unauthenticated sessions To make it harder for attackers, introduce a delay to keep an unauthenticated session open a bit longer, thus blocking a connection slot until after the delay. Without this, while there is a limit on the amount of attempts an attacker can make at the same time (MAX_UNAUTH_PER_IP), the time taken by dropbear to handle one attempt is still short and thus for each of the allowed parallel attempts many attempts can be chained one after the other. The attempt rate is then: "MAX_UNAUTH_PER_IP / <process time of one attempt>". With the delay, this rate becomes: "MAX_UNAUTH_PER_IP / UNAUTH_CLOSE_DELAY".
author Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
date Wed, 15 Feb 2017 13:53:04 +0100
parents 6dba84798cd5
children
line wrap: on
line source

#!/bin/bash
echo "$1 ($2, $3)..."

make clean 1>/dev/null 2>/dev/null

echo -n "building..."

if [ -f /proc/cpuinfo ]
then
  MAKE_JOBS=$(( ($(cat /proc/cpuinfo | grep -E '^processor[[:space:]]*:' | tail -n -1 | cut -d':' -f2) + 1) * 2 + 1 ))
else
  MAKE_JOBS=8
fi

CFLAGS="$2 $CFLAGS $4" EXTRALIBS="$5" make -j$MAKE_JOBS -f $3 all_test 1>gcc_1.txt 2>gcc_2.txt
mret=$?
cnt=$(wc -l < gcc_2.txt)
# ignore 1 line since ar prints to stderr instead of stdout and ar is called for
# $(LIBNAME)
if [[ $mret -ne 0 ]] || [[ $cnt -gt 1 ]]; then
   echo "build $1 failed! printing gcc_2.txt now for convenience"
   cat gcc_2.txt
   exit 1
fi

echo -n "testing..."

if [ -a test ] && [ -f test ] && [ -x test ]; then
   ((./test >test_std.txt 2>test_err.txt && ./tv_gen > tv.txt) && echo "$1 test passed." && echo "y" > testok.txt) || (echo "$1 test failed, look at test_err.txt or tv.txt" && exit 1)
   if find *_tv.txt -type f 1>/dev/null 2>/dev/null ; then
      for f in *_tv.txt; do
         # check for lines starting with '<' ($f might be a subset of notes/$f)
         difftroubles=$(diff -i -w -B $f notes/$f | grep '^<')
         if [ -n "$difftroubles" ]; then
            echo "FAILURE: $f"
            diff -i -w -B $f notes/$f
            echo "tv_gen $f failed" && rm -f testok.txt && exit 1
         else
            true
         fi
      done
   fi
fi


if [ -a testok.txt ] && [ -f testok.txt ]; then
   if [ "$LTC_COVERAGE" != "" ]; then
      ./coverage_more.sh > test_coverage_more.txt || exit 1
      lcov_opts="--capture --no-external --directory src -q"
      lcov_out=$(echo coverage_$1_$2_$3 | tr ' -=+' '_')".info"
      lcov $lcov_opts --output-file $lcov_out
   fi
   exit 0
fi
exit 1

# ref:         $Format:%D$
# git commit:  $Format:%H$
# commit time: $Format:%ai$