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https://github.com/Security-Onion-Solutions/securityonion.git
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38 lines
1.1 KiB
Bash
Executable File
38 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2014 Google Inc. 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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if [ "$#" -lt 2 ]; then
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cat 1>&2 <<EOF
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$0 compiles a BPF expression to be passed to stenotype to apply a socket filter.
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Its first argument is the interface (link type is required) and all other arguments
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are passed to TCPDump.
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Examples:
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$0 eth0 dst port 80
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$0 eth0 udp port 53
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EOF
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exit 1
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fi
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interface="$1"
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shift
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sudo tcpdump -i $interface -ddd $@ | tail -n+2 |
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while read line; do
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cols=( $line )
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printf "%04x%02x%02x%08x" ${cols[0]} ${cols[1]} ${cols[2]} ${cols[3]}
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done
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echo ""
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