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100 lines
2.7 KiB
100 lines
2.7 KiB
#!/bin/sh
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#
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# Copyright 2014 Google LLC All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -----------------------------------------
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# american fuzzy lop - fuzzer synchronization tool
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# ------------------------------------------------
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#
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# Written and maintained by Michal Zalewski <lcamtuf@google.com>
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#
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# To make this script work:
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#
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# - Edit FUZZ_HOSTS, FUZZ_DOMAIN, FUZZ_USER, and SYNC_DIR to reflect your
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# environment.
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#
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# - Make sure that the system you are running this on can log into FUZZ_HOSTS
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# without a password (authorized_keys or otherwise).
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#
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# - Make sure that every fuzzer is running with -o pointing to SYNC_DIR and -S
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# that consists of its local host name, followed by an underscore, and then
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# by some host-local fuzzer ID.
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#
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# Hosts to synchronize the data across.
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FUZZ_HOSTS='host1 host2 host3 host4'
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# Domain for all hosts
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FUZZ_DOMAIN='example.com'
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# Remote user for SSH
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FUZZ_USER=bob
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# Directory to synchronize
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SYNC_DIR='/home/bob/sync_dir'
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# Interval (seconds) between sync attempts
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SYNC_INTERVAL=$((30 * 60))
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if [ "$AFL_ALLOW_TMP" = "" ]; then
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if [ "$PWD" = "/tmp" -o "$PWD" = "/var/tmp" ]; then
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echo "[-] Error: do not use shared /tmp or /var/tmp directories with this script." 1>&2
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exit 1
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fi
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fi
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rm -rf .sync_tmp 2>/dev/null
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mkdir .sync_tmp || exit 1
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while :; do
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# Pull data in...
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for host in $FUZZ_HOSTS; do
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echo "[*] Retrieving data from ${host}.${FUZZ_DOMAIN}..."
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ssh -o 'passwordauthentication no' ${FUZZ_USER}@${host}.$FUZZ_DOMAIN \
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"cd '$SYNC_DIR' && tar -czf - ${host}_*/[qf]*" >".sync_tmp/${host}.tgz"
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done
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# Distribute data. For large fleets, see tips in the docs/ directory.
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for dst_host in $FUZZ_HOSTS; do
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echo "[*] Distributing data to ${dst_host}.${FUZZ_DOMAIN}..."
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for src_host in $FUZZ_HOSTS; do
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test "$src_host" = "$dst_host" && continue
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echo " Sending fuzzer data from ${src_host}.${FUZZ_DOMAIN}..."
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ssh -o 'passwordauthentication no' ${FUZZ_USER}@$dst_host \
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"cd '$SYNC_DIR' && tar -xkzf -" <".sync_tmp/${src_host}.tgz"
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done
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done
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echo "[+] Done. Sleeping for $SYNC_INTERVAL seconds (Ctrl-C to quit)."
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sleep $SYNC_INTERVAL
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done
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