diff options
| -rw-r--r-- | pc-bios/optionrom/Makefile | 9 | ||||
| -rw-r--r-- | pc-bios/optionrom/signrom.c | 79 | ||||
| -rwxr-xr-x | pc-bios/optionrom/signrom.sh | 45 |
3 files changed, 48 insertions, 85 deletions
diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile index c4a6f42625..7f987d898f 100644 --- a/pc-bios/optionrom/Makefile +++ b/pc-bios/optionrom/Makefile @@ -37,12 +37,9 @@ build-all: multiboot.bin %.img: %.o $(LD) --oformat binary -Ttext 0 -o $@ $< -%.bin: %.img signrom - ./signrom $< $@ +%.bin: %.img + $(SRC_PATH)/pc-bios/optionrom/signrom.sh $< $@ cp $@ $(SRC_PATH)/pc-bios/ -signrom: signrom.c - $(CC) -o $@ -g -Wall $^ - clean: - $(RM) *.o *.img *.bin signrom *~ + $(RM) *.o *.img *.bin *~ diff --git a/pc-bios/optionrom/signrom.c b/pc-bios/optionrom/signrom.c deleted file mode 100644 index fe8d677459..0000000000 --- a/pc-bios/optionrom/signrom.c +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Extended Boot Option ROM - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * Copyright IBM Corporation, 2007 - * Authors: Anthony Liguori <aliguori@us.ibm.com> - */ - -#include <stdio.h> -#include <stdint.h> -#include <string.h> - -int main(int argc, char **argv) -{ - FILE *fin, *fout; - char buffer[512], oldbuffer[512]; - int i, size, lag = 0; - uint8_t sum = 0; - - if (argc != 3) { - printf("Usage: %s ROM OUTPUT\n", argv[0]); - return 1; - } - - fin = fopen(argv[1], "rb"); - fout = fopen(argv[2], "wb"); - - if (fin == NULL || fout == NULL) { - fprintf(stderr, "Could not open input/output files\n"); - return 1; - } - - do { - size = fread(buffer, 512, 1, fin); - if (size == 1) { - for (i = 0; i < 512; i++) - sum += buffer[i]; - - if (lag) { - if (fwrite(oldbuffer, 512, 1, fout) != 1) { - fprintf(stderr, "Write failed\n"); - return 1; - } - } - lag = 1; - memcpy(oldbuffer, buffer, 512); - } - } while (size == 1); - - if (size != 0) { - fprintf(stderr, "Failed to read from input file\n"); - return 1; - } - - oldbuffer[511] = -sum; - - if (fwrite(oldbuffer, 512, 1, fout) != 1) { - fprintf(stderr, "Failed to write to output file\n"); - return 1; - } - - fclose(fin); - fclose(fout); - - return 0; -} diff --git a/pc-bios/optionrom/signrom.sh b/pc-bios/optionrom/signrom.sh new file mode 100755 index 0000000000..4273d1f0e0 --- /dev/null +++ b/pc-bios/optionrom/signrom.sh @@ -0,0 +1,45 @@ +#!/bin/sh + +# Option ROM Signing utility +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# Copyright Novell Inc, 2009 +# Authors: Alexander Graf <agraf@suse.de> +# +# Syntax: signrom.sh <input> <output> + +# did we get proper arguments? +test "$1" -a "$2" || exit 1 + +sum=0 + +# find out the file size +x=`dd if="$1" bs=1 count=1 skip=2 2>/dev/null | od -t u1 -A n` +#size=`expr $x \* 512 - 1` +size=$(( $x * 512 - 1 )) + +# now get the checksum +for i in `od -A n -t u1 -v "$1"`; do + # add each byte's value to sum + sum=$(( $sum + $i )) +done + +sum=$(( $sum % 256 )) +sum=$(( 256 - $sum )) + +# and write the output file +cp "$1" "$2" +printf "\\$sum" | dd of="$2" bs=1 count=1 seek=$size conv=notrunc 2>/dev/null |