mirror of
https://github.com/radareorg/radare2.git
synced 2025-04-03 01:52:04 +00:00
* Add ragg2-cc
- shellcode compiler using gcc or llvm-gcc as backend - inspired in shellforge, written in shellscript - works on x86-32 with linux and osx * Fix rax2 -S for binary data
This commit is contained in:
pancake
parent
f1bee51c94
commit
a5cb0c7810
1
Makefile
1
Makefile
@ -141,6 +141,7 @@ purge:
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rm -f ${DESTDIR}/${BINDIR}/rarc2
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rm -f ${DESTDIR}/${BINDIR}/rahash2
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rm -f ${DESTDIR}/${BINDIR}/ragg2
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rm -f ${DESTDIR}/${BINDIR}/ragg2-cc
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rm -f ${DESTDIR}/${BINDIR}/rarun2
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rm -f ${DESTDIR}/${BINDIR}/rasc2
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rm -f ${DESTDIR}/${BINDIR}/radiff2
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1
TODO
1
TODO
@ -6,6 +6,7 @@
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------8<-------------------8<--------------------8<-----------------8<----------
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====[[ 0.9 ]]====
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* rax2 must convert bin from stdin to hexpairs to stdout
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* r_cons_visual_write_tail() -> fill end of screen with spaces \o/
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* Add graph.nodecolor graph.bgcolor graph.edgecolor ??
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* Add !load in r2 (oo args)
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@ -17,6 +17,7 @@ install:
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mkdir -p ${BFX}
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pwd
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for a in ${BINS} ; do ${INSTALL_PROGRAM} $$a/$$a ${BFX}/$$a ; done
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${INSTALL_PROGRAM} ragg2/ragg2-cc ${BFX}/ragg2-cc
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#cp -f rarc2/rarc2 rarc2/rarc2-tool ${BFX}
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# shortcut
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-cd ${BFX} && rm -f r2 ; ln -fs radare2 r2
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@ -34,7 +35,7 @@ symstall-rsc2:
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symstall install-symlink:
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mkdir -p ${BFX}
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for a in ${BINS} ; do ln -fs ${PWD}/$$a/$$a ${BFX}/$$a ; done
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# ln -fs ${PWD}/rarc2/rarc2-tool ${BFX}/rarc2-tool
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ln -fs ${PWD}/ragg2/ragg2-cc ${BFX}/ragg2-cc
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-ln -fs ${PFX}/bin/radare2 ${BFX}/r2
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deinstall uninstall:
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135
binr/ragg2/ragg2-cc
Executable file
135
binr/ragg2/ragg2-cc
Executable file
@ -0,0 +1,135 @@
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#!/bin/sh
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# ragg2-cc : a shellcode compiler -- pancake<nopcode.org> 2011
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# - for bsd, linux and osx
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# TODO
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# add support for x86-64 bits
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# add support for arm
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# add support for nested shellcodes
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B=0
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D=""
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O=""
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F=""
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ASM=0
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while : ; do
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[ -z "$1" ] && break
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F=$1
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case "$F" in
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-b)
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B=1
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;;
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-d)
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D=1
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;;
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-s)
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ASM=1
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;;
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-o)
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shift
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O=$1
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if [ -z "$O" ]; then
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echo "Missing argument for -o"
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exit 1
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fi
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;;
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-h)
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echo "Usage: ragg2-cc [-opt] [file.c]"
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echo " -s generate assembly file"
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echo " -d enable debug mode"
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echo " -b show hexpair bytes"
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exit 0
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;;
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-v)
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echo "ragg2-cc 0.9"
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exit 0
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;;
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esac
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shift
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done
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if [ -z "$F" ]; then
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echo "Missing argument"
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exit 1
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fi
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[ -z "$O" ] && O=$F.bin
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if [ "`uname`" = Darwin ]; then
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#CC=/opt/local/bin/i386-mingw32-gcc
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#OBJCOPY=/opt/local/bin/i386-mingw32-objcopy
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CC=gcc
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CC=llvm-gcc # llvm generate smaller binaries
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OBJCOPY=gobjcopy
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CFLAGS="-arch i386 "
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LDFLAGS="-arch i386 -shared -c"
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ARCH=darwin_i386
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SHDR="
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.text
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jmp _main"
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else
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CC=gcc
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OBJCOPY=objcopy
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ARCH=linux_i386
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CFLAGS="-fPIC -fPIE -pie"
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SHDR="
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.section text
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.globl main
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.type main, @function
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jmp main
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"
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#ARCH=linux_amd64
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fi
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OPT=-Os
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#CFLAGS="-shared -fPIC -fPIE -pie "
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#CFLAGS="${CFLAGS} -shared -fPIC -fPIE -pie "
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CFLAGS="${CFLAGS} -nostdinc -include /usr/include/sflib/${ARCH}/sflib.h"
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CFLAGS="${CFLAGS} -fomit-frame-pointer -finline-functions -fno-zero-initialized-in-bss"
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LDFLAGS="${LDFLAGS} -nostdlib"
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rmtemps() {
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[ -z "$D" ] && rm -f $F.tmp $F.text $F.text $F.s $F.o
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}
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fail() {
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rmtemps
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exit 1
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}
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if [ "$D" ]; then
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echo "==> Compile"
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echo "${CC} ${CFLAGS} -o $F.tmp -S ${OPT} $F"
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fi
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rm -f $F.bin
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${CC} ${CFLAGS} -o $F.tmp -S ${OPT} $F || fail
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echo "${SHDR}" > $F.s
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cat $F.tmp \
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| sed -e s,rdata,text, -e s,rodata,text, -e 's,__i686.get_pc_thunk.bx,__getesp__,g' \
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| grep -v .cstring | grep -v size | grep -v ___main | grep -v section \
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| grep -v __alloca | grep -v zero | grep -v cfi >> $F.s
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rm -f $F.tmp
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if [ $ASM = 1 ]; then
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echo $F.s
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exit 0
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fi
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if [ "$D" ]; then
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echo "==> Assemble"
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echo "${CC} -c ${LDFLAGS} -Os -o $F.o $F.s"
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fi
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${CC} ${LDFLAGS} ${OPT} -o $F.o $F.s || fail
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if [ "$D" ]; then
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echo "==> Link"
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echo "${OBJCOPY} -j .text -O binary $F.o $.text"
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fi
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${OBJCOPY} -j .text -O binary $F.o $F.text || fail
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[ $B = 1 ] && exec rax2 -S - < $F.text
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if [ "$D" ]; then
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# hexdump -C $F.text
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rax2 -S - < $F.text
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ls -l $F.text
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fi
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ragg2 -C $F.text -F -o $O || fail
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echo $O
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rmtemps
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exit 0
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@ -6,7 +6,7 @@ static int flags = 0;
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static int format_output (char mode, ut64 n);
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static int help ();
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static int rax (char *str, int last);
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static int rax (char *str, int len, int last);
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static int use_stdin ();
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static int format_output (char mode, ut64 n) {
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@ -63,10 +63,12 @@ static int help () {
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return R_TRUE;
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}
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static int rax (char *str, int last) {
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static int rax (char *str, int len, int last) {
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float f;
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char *p, *buf, out_mode = '0';
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int i;
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if (!len)
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len = strlen (str);
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if (*str=='-') {
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switch (str[1]) {
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@ -116,9 +118,9 @@ static int rax (char *str, int last) {
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free (buf);
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return R_TRUE;
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}
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if (flags & 4) {
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for (i=0; str[i]; i++)
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printf ("%02x", str[i]);
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if (flags & 4) { // -S
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for (i=0; i<len; i++)
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printf ("%02x", (ut8)str[i]);
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printf ("\n");
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return R_TRUE;
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}
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@ -177,10 +179,13 @@ static int rax (char *str, int last) {
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static int use_stdin () {
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char buf[4096]; // TODO: remove this limit
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while (!feof (stdin)) {
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fgets (buf, sizeof (buf), stdin);
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int n = read (0, buf, sizeof (buf));
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if (n<1) break;
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buf[n] = 0;
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//fgets (buf, sizeof (buf), stdin);
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if (feof (stdin)) break;
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buf[strlen (buf)-1] = '\0';
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if (!rax (buf, 0)) break;
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if (!rax (buf, n, 0)) break;
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}
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return 0;
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}
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@ -190,6 +195,6 @@ int main (int argc, char **argv) {
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if (argc == 1)
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return use_stdin ();
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for (i=1; i<argc; i++)
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rax (argv[i], (i+1)==argc);
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rax (argv[i], 0, (i+1)==argc);
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return 0;
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}
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