forked from osmocom/wireshark
105 lines
3.9 KiB
Bash
Executable File
105 lines
3.9 KiB
Bash
Executable File
#!/bin/bash
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# A little script to run tshark on a capture file that failed fuzz testing.
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# Useful because it sets up ulimits for you. (I'm writing this after having
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# my machine hang up for like 15 minutes because I wasn't paying attention
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# while tshark was running on a fuzzed capture and it used all my RAM +
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# swap--which was pretty painful.)
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#
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# Copyright 2012 Jeff Morriss <jeff.morriss.ws [AT] gmail.com>
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#
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# $Id$
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#
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# Wireshark - Network traffic analyzer
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# By Gerald Combs <gerald@wireshark.org>
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# Copyright 1998 Gerald Combs
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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if [ $# -ne 1 ]
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then
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printf "Usage: $0 /path/to/file.pcap\n"
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exit 1
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fi
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# Directory containing tshark. Default current directory.
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BIN_DIR=.
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# These may be set to your liking
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# Stop the child process, if it's running longer than x seconds
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MAX_CPU_TIME=900
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# Stop the child process, if it's using more than y * 1024 bytes
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MAX_VMEM=500000
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# set some limits to the child processes, e.g. stop it if it's running longer then MAX_CPU_TIME seconds
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# (ulimit is not supported well on cygwin and probably other platforms, e.g. cygwin shows some warnings)
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ulimit -S -t $MAX_CPU_TIME -v $MAX_VMEM
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# Allow core files to be generated
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ulimit -c unlimited
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if [ "$BIN_DIR" = "." ]; then
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export WIRESHARK_RUN_FROM_BUILD_DIRECTORY=
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fi
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##############################################################################
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### Set up environment variables for fuzz testing ###
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##############################################################################
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# Initialize (ep_ and se_) allocated memory to 0xBADDCAFE and freed memory
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# to 0xDEADBEEF
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export WIRESHARK_DEBUG_SCRUB_MEMORY=
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# Use canaries in se_ allocations (off by default due to the memory usage)
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export WIRESHARK_DEBUG_SE_USE_CANARY=
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# Verify that ep_ and se_ allocated memory is not passed to certain routines
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# which need the memory to be persistent.
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export WIRESHARK_EP_VERIFY_POINTERS=
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export WIRESHARK_SE_VERIFY_POINTERS=
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# abort instead of giving a nice error message
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export WIRESHARK_ABORT_ON_OUT_OF_MEMORY=
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# Call abort() on dissector bugs to make it easier to get a stack trace
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export WIRESHARK_ABORT_ON_DISSECTOR_BUG=
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# Turn on GLib memory debugging (since 2.13)
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export G_SLICE=debug-blocks
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# Cause glibc (Linux) to abort() if some memory errors are found
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export MALLOC_CHECK_=3
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# Cause FreeBSD (and other BSDs) to abort() on allocator warnings and
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# initialize allocated memory (to 0xa5) and freed memory (to 0x5a). see:
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# http://www.freebsd.org/cgi/man.cgi?query=malloc&apropos=0&sektion=0&manpath=FreeBSD+8.2-RELEASE&format=html
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export MALLOC_OPTIONS=AJ
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# MacOS options; see http://developer.apple.com/library/mac/releasenotes/DeveloperTools/RN-MallocOptions/_index.html
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# Initialize allocated memory to 0xAA and freed memory to 0x55
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export MallocPreScribble=1
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export MallocScribble=1
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# Add guard pages before and after large allocations
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export MallocGuardEdges=1
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# Call abort() if heap corruption is detected. Heap is checked every 1000
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# allocations (may need to be tuned!)
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export MallocCheckHeapStart=1000
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export MallocCheckHeapEach=1000
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export MallocCheckHeapAbort=1
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# Call abort() if an illegal free() call is made
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export MallocBadFreeAbort=1
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if $BIN_DIR/tshark -nVxr $1 > /dev/null
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then
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echo
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echo "* * Trying again without building tree * *"
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echo
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$BIN_DIR/tshark -nr $1 > /dev/null
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fi
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