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128 lines
3.1 KiB
Bash
128 lines
3.1 KiB
Bash
#!/bin/bash
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#
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# Script to setup a new 'simple' detect module.
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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 $0) -- script to provision a detect module. The script"
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echo "makes a copy of detect-template, sets the name and updates"
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echo "the build system."
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echo
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echo "Call from the 'src' directory, with one argument: the detect module"
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echo "name."
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echo
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echo "E.g. inside 'src': ../scripts/$(basename $0) helloworld"
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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 "Detect module $NR has been set up in $FILE_C and $FILE_H"
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echo "and the build system has been updated."
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echo
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echo "The detect module 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 "detection logic 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 $NR
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FILE_C="detect-${LC}.c"
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FILE_H="detect-${LC}.h"
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set_dir
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if [ ! -e detect-template.c ] || [ ! -e detect-template.h ]; then
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Usage
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echo "ERROR: input files detect-template.c and/or detect-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 $FILE_H already exist, won't overwrite"
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exit 1
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fi
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FILE_C="tests/detect-${LC}.c"
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if [ ! -e tests/detect-template.c ]; then
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Usage
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echo "ERROR: input file tests/detect-template.c is missing"
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exit 1
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fi
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if [ -e $FILE_C ]; then
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Usage
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echo "ERROR: file $FILE_C already exist, won't overwrite"
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exit 1
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fi
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FILE_C="detect-${LC}.c"
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FILE_H="detect-${LC}.h"
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cp detect-template.c $FILE_C
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cp detect-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" $FILE_H
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# add to Makefile.am
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sed -i "s/detect-template.c detect-template.h \\\/detect-template.c detect-template.h \\\\\n${FILE_C} ${FILE_H} \\\/g" Makefile.am
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# update enum
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sed -i "s/DETECT_TEMPLATE,/DETECT_TEMPLATE,\\n DETECT_${UC},/g" detect-engine-register.h
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# add include to detect-engine-register.c
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sed -i "s/#include \"detect-template.h\"/#include \"detect-template.h\"\\n#include \"${FILE_H}\"/g" detect-engine-register.c
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# add reg func to detect-engine-register.c
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sed -i "s/DetectTemplateRegister();/DetectTemplateRegister();\\n Detect${NR}Register();/g" detect-engine-register.c
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# tests file
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FILE_C="tests/detect-${LC}.c"
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cp tests/detect-template.c $FILE_C
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# search and replaces
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sed -i "s/TEMPLATE/${UC}/g" $FILE_C
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sed -i "s/Template/${NR}/g" $FILE_C
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sed -i "s/template/${LC}/g" $FILE_C
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Done
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exit 0
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