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authorhexcoder- <heiko@hexco.de>2020-12-12 22:54:34 +0100
committerhexcoder- <heiko@hexco.de>2020-12-12 22:54:34 +0100
commitc5c852dada1b5f6fe929d0c7371b368bc83c2c56 (patch)
tree0359dafcd36bfa46e3608c6e131e471eda01930b
parent7382cf5f00c1ba5d926c12e3ed4ca0e14d761fcb (diff)
downloadafl++-c5c852dada1b5f6fe929d0c7371b368bc83c2c56.tar.gz
add tests for the missing afl-compiler (afl-gcc or afl-clang)
-rwxr-xr-xtest/test-basic.sh118
1 files changed, 118 insertions, 0 deletions
diff --git a/test/test-basic.sh b/test/test-basic.sh
index d63f01cf..c4ccf872 100755
--- a/test/test-basic.sh
+++ b/test/test-basic.sh
@@ -2,6 +2,8 @@
 
 . ./test-pre.sh
 
+
+AFL_GCC=afl-gcc
 $ECHO "$BLUE[*] Testing: ${AFL_GCC}, afl-showmap, afl-fuzz, afl-cmin and afl-tmin"
 test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc" -o "$SYS" = "i386" && {
  test -e ../${AFL_GCC} -a -e ../afl-showmap -a -e ../afl-fuzz && {
@@ -117,6 +119,122 @@ test "$SYS" = "i686" -o "$SYS" = "x86_64" -o "$SYS" = "amd64" -o "$SYS" = "i86pc
   $ECHO "$YELLOW[-] afl is not compiled, cannot test"
   INCOMPLETE=1
  }
+ if [ ${AFL_GCC} = "afl-gcc" ] ; then AFL_GCC=afl-clang ; else AFL_GCC=afl-gcc ; fi
+ $ECHO "$BLUE[*] Testing: ${AFL_GCC}, afl-showmap, afl-fuzz, afl-cmin and afl-tmin"
+ test -e ../${AFL_GCC} -a -e ../afl-showmap -a -e ../afl-fuzz && {
+  ../${AFL_GCC} -o test-instr.plain ../test-instr.c > /dev/null 2>&1
+  AFL_HARDEN=1 ../${AFL_GCC} -o test-compcov.harden test-compcov.c > /dev/null 2>&1
+  test -e test-instr.plain && {
+    $ECHO "$GREEN[+] ${AFL_GCC} compilation succeeded"
+    echo 0 | ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.0 -r -- ./test-instr.plain > /dev/null 2>&1
+    ../afl-showmap -m ${MEM_LIMIT} -o test-instr.plain.1 -r -- ./test-instr.plain < /dev/null > /dev/null 2>&1
+    test -e test-instr.plain.0 -a -e test-instr.plain.1 && {
+      diff test-instr.plain.0 test-instr.plain.1 > /dev/null 2>&1 && {
+        $ECHO "$RED[!] ${AFL_GCC} instrumentation should be different on different input but is not"
+        CODE=1
+      } || {
+        $ECHO "$GREEN[+] ${AFL_GCC} instrumentation present and working correctly"
+      }
+    } || {
+      $ECHO "$RED[!] ${AFL_GCC} instrumentation failed"
+      CODE=1
+    }
+    rm -f test-instr.plain.0 test-instr.plain.1
+    TUPLES=`echo 0|../afl-showmap -m ${MEM_LIMIT} -o /dev/null -- ./test-instr.plain 2>&1 | grep Captur | awk '{print$3}'`
+    test "$TUPLES" -gt 3 -a "$TUPLES" -lt 11 && {
+      $ECHO "$GREEN[+] ${AFL_GCC} run reported $TUPLES instrumented locations which is fine"
+    } || {
+      $ECHO "$RED[!] ${AFL_GCC} instrumentation produces weird numbers: $TUPLES"
+      CODE=1
+    }
+  } || {
+    $ECHO "$RED[!] ${AFL_GCC} failed"
+    echo CUT------------------------------------------------------------------CUT
+    uname -a
+    ../${AFL_GCC} -o test-instr.plain ../test-instr.c
+    echo CUT------------------------------------------------------------------CUT
+    CODE=1
+  }
+  test -e test-compcov.harden && {
+    grep -Eq$GREPAOPTION 'stack_chk_fail|fstack-protector-all|fortified' test-compcov.harden > /dev/null 2>&1 && {
+      $ECHO "$GREEN[+] ${AFL_GCC} hardened mode succeeded and is working"
+    } || {
+      $ECHO "$RED[!] ${AFL_GCC} hardened mode is not hardened"
+      CODE=1
+    }
+    rm -f test-compcov.harden
+  } || {
+    $ECHO "$RED[!] ${AFL_GCC} hardened mode compilation failed"
+    CODE=1
+  }
+  # now we want to be sure that afl-fuzz is working
+  # make sure core_pattern is set to core on linux
+  (test "$(uname -s)" = "Linux" && test "$(sysctl kernel.core_pattern)" != "kernel.core_pattern = core" && {
+    $ECHO "$YELLOW[-] we should not run afl-fuzz with enabled core dumps. Run 'sudo sh afl-system-config'.$RESET"
+    true
+  }) ||
+  # make sure crash reporter is disabled on Mac OS X
+  (test "$(uname -s)" = "Darwin" && test $(launchctl list 2>/dev/null | grep -q '\.ReportCrash$') && {
+    $ECHO "$RED[!] we cannot run afl-fuzz with enabled crash reporter. Run 'sudo sh afl-system-config'.$RESET"
+    true
+  }) || {
+    mkdir -p in
+    echo 0 > in/in
+    $ECHO "$GREY[*] running afl-fuzz for ${AFL_GCC}, this will take approx 10 seconds"
+    {
+      ../afl-fuzz -V10 -m ${MEM_LIMIT} -i in -o out -- ./test-instr.plain >>errors 2>&1
+    } >>errors 2>&1
+    test -n "$( ls out/default/queue/id:000002* 2>/dev/null )" && {
+      $ECHO "$GREEN[+] afl-fuzz is working correctly with ${AFL_GCC}"
+    } || {
+      echo CUT------------------------------------------------------------------CUT
+      cat errors
+      echo CUT------------------------------------------------------------------CUT
+      $ECHO "$RED[!] afl-fuzz is not working correctly with ${AFL_GCC}"
+      CODE=1
+    }
+    echo 000000000000000000000000 > in/in2
+    echo 111 > in/in3
+    mkdir -p in2
+sh
+    ../afl-cmin -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null 2>&1 # why is afl-forkserver writing to stderr?
+    CNT=`ls in2/* 2>/dev/null | wc -l`
+    case "$CNT" in
+      *2) $ECHO "$GREEN[+] afl-cmin correctly minimized the number of testcases" ;;
+      *)  $ECHO "$RED[!] afl-cmin did not correctly minimize the number of testcases ($CNT)"
+          CODE=1
+          ;;
+    esac
+    rm -f in2/in*
+    export AFL_QUIET=1
+    if command -v bash >/dev/null ; then {
+      ../afl-cmin.bash -m ${MEM_LIMIT} -i in -o in2 -- ./test-instr.plain >/dev/null
+      CNT=`ls in2/* 2>/dev/null | wc -l`
+      case "$CNT" in
+        *2) $ECHO "$GREEN[+] afl-cmin.bash correctly minimized the number of testcases" ;;
+        *)  $ECHO "$RED[!] afl-cmin.bash did not correctly minimize the number of testcases ($CNT)"
+            CODE=1
+            ;;
+        esac
+    } else {
+      $ECHO "$GRAY[*] no bash available, cannot test afl-cmin.bash"
+    }
+    fi
+    ../afl-tmin -m ${MEM_LIMIT} -i in/in2 -o in2/in2 -- ./test-instr.plain > /dev/null 2>&1
+    SIZE=`ls -l in2/in2 2>/dev/null | awk '{print$5}'`
+    test "$SIZE" = 1 && $ECHO "$GREEN[+] afl-tmin correctly minimized the testcase"
+    test "$SIZE" = 1 || {
+       $ECHO "$RED[!] afl-tmin did incorrectly minimize the testcase to $SIZE"
+       CODE=1
+    }
+    rm -rf in out errors in2
+    unset AFL_QUIET
+  }
+  rm -f test-instr.plain
+ } || {
+  $ECHO "$YELLOW[-] afl is not compiled, cannot test"
+  INCOMPLETE=1
+ }
 } || {
  $ECHO "$GREY[*] not an intel platform, skipped tests of afl-gcc"
  #this is not incomplete as this feature doesnt exist, so all good