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https://github.com/OISF/suricata.git
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ac37fd5e29
Use of hardcoded bash prevents users from using an upgraded bash which may live in a different location. This behavior is often seen on OSX systems. Utilize env to find the preferred bash to call for scripts.
103 lines
2.2 KiB
Bash
Executable file
103 lines
2.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# Script to setup a new decoder.
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# Written by Victor Julien <victor@inliniac.net>
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#
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set -e
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#set -x
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function Usage {
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echo
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echo "$(basename $0) -- script to provision a decoder. The script"
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echo "makes a copy of the decode-template, sets the name and updates"
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echo " the build system."
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echo
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echo "Call from the 'src' directory, with one argument: the decoder name."
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echo
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echo "E.g. inside 'src': ../scripts/$(basename $0) ipv7"
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echo
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}
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function Done {
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echo
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echo "Decoder $NR has been set up in $FILE_C and $FILE_H and the"
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echo "build system has been updated."
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echo
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echo "The decoder should now compile cleanly. Try running 'make'."
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echo
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echo "Next steps are to edit the files to implement the actual"
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echo "decoding of $NR."
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echo
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}
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# Make sure we are running from the correct directory.
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set_dir() {
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if [ -e ./suricata.c ]; then
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# Do nothing.
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true
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elif [ -e ./src/suricata.c ]; then
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cd src
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else
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echo "error: this does not appear to be a suricata source directory."
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exit 1
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fi
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}
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if [ $# -ne "1" ]; then
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Usage
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echo "ERROR: call with one argument"
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exit 1
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fi
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INPUT=$1
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# lowercase
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LC=${INPUT,,}
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#echo $LC
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# UPPERCASE
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UC=${LC^^}
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#echo $UC
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# Normal
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NR=${LC^}
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#echo $NR
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FILE_C="decode-${LC}.c"
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FILE_H="decode-${LC}.h"
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#echo $FILE_C
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#echo $FILE_H
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set_dir
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if [ ! -e decode-template.c ] || [ ! -e decode-template.h ]; then
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Usage
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echo "ERROR: input files decode-template.c and/or decode-template.h are missing"
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exit 1
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fi
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if [ -e $FILE_C ] || [ -e $FILE_H ]; then
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Usage
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echo "ERROR: file(s) $FILE_C and/or $FILE_H already exist, won't overwrite"
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exit 1
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fi
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cp decode-template.c $FILE_C
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cp decode-template.h $FILE_H
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# search and replaces
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sed -i "s/TEMPLATE/${UC}/g" $FILE_C
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sed -i "s/TEMPLATE/${UC}/g" $FILE_H
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sed -i "s/Template/${NR}/g" $FILE_C
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sed -i "s/Template/${NR}/g" $FILE_H
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sed -i "s/template/${LC}/g" $FILE_C
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sed -i "s/template/${LC}/g" $FILE_H
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sed -i "s/decode-template.c decode-template.h \\\/decode-template.c decode-template.h \\\\\n${FILE_C} ${FILE_H} \\\/g" Makefile.am
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ed -s decode.h > /dev/null <<EOF
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/^int DecodeTEMPLATE
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t-
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s/DecodeTEMPLATE/Decode${UC}/g
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w
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EOF
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Done
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exit 0
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