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authorMike Baker <mbm@openwrt.org>2007-05-10 14:37:47 +0000
committerMike Baker <mbm@openwrt.org>2007-05-10 14:37:47 +0000
commit09cdbc40d05014808b9fd32db0f87075e1f7d628 (patch)
tree0d8ea6a346ce1aed9ac866ebb526f81832423ec0 /target/linux/brcm-2.4/src
parentcb3daaf7727d9164860859ffc5774f6f4aaa8c7c (diff)
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unified preinit environment
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7173 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm-2.4/src')
-rw-r--r--target/linux/brcm-2.4/src/jffs2root.c138
1 files changed, 0 insertions, 138 deletions
diff --git a/target/linux/brcm-2.4/src/jffs2root.c b/target/linux/brcm-2.4/src/jffs2root.c
deleted file mode 100644
index 0afca57472..0000000000
--- a/target/linux/brcm-2.4/src/jffs2root.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * jffs2root.c
- *
- * Copyright (C) 2005 Mike Baker
- *
- * 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * $Id$
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <string.h>
-
-#include <sys/ioctl.h>
-#include "mtd.h"
-
-struct trx_header {
- unsigned magic; /* "HDR0" */
- unsigned len; /* Length of file including header */
- unsigned crc32; /* 32-bit CRC from flag_version to end of file */
- unsigned flag_version; /* 0:15 flags, 16:31 version */
- unsigned offsets[3]; /* Offsets of partitions from start of header */
-};
-
-unsigned long *crc32;
-
-void init_crc32()
-{
- unsigned long crc;
- unsigned long poly = 0xEDB88320L;
- int n, bit;
- if ((crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long))) == (void *)-1) {
- perror("malloc");
- exit(1);
- }
- for (n = 0; n < 256; n++) {
- crc = (unsigned long) n;
- for (bit = 0; bit < 8; bit++)
- crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
- crc32[n] = crc;
- }
-}
-
-unsigned int crc32buf(char *buf, size_t len)
-{
- unsigned int crc = 0xFFFFFFFF;
- for (; len; len--, buf++)
- crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8);
- return crc;
-}
-
-int main(int argc, char **argv)
-{
- int fd;
- struct mtd_info_user mtdInfo;
- unsigned long len;
- struct trx_header *ptr;
- char *buf;
-
- if ((fd = open("/dev/mtdblock/1", O_RDWR)) < 0) {
- fd = open("/dev/mtdblock1", O_RDWR);
- }
-
- if (((len = lseek(fd, 0, SEEK_END)) < 0)
- || ((ptr = (struct trx_header *) mmap(0, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1))
- || (ptr->magic != 0x30524448)) {
- printf("Error reading trx info\n");
- exit(-1);
- }
-
- close(fd);
-
- if ((fd = open("/dev/mtd/1", O_RDWR)) < 0) {
- fd = open("/dev/mtd1", O_RDWR);
- }
-
- if (ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from mtd\n");
- close(fd);
- exit(1);
- }
- close(fd);
-
- if (argc > 1 && !strcmp(argv[1],"--move")) {
- if (ptr->offsets[2] >= ptr->len) {
- printf("Partition already moved outside trx\n");
- } else {
- init_crc32();
- ptr->offsets[2] += (mtdInfo.erasesize - 1);
- ptr->offsets[2] &= ~(mtdInfo.erasesize - 1);
- ptr->len = ptr->offsets[2];
- ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
- msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
- printf("Partition moved; please reboot\n");
- }
- } else if (argc > 1 && !strcmp(argv[1], "--clean")) {
- buf = (char *) ptr;
- if (buf[ptr->offsets[1] - 1] == 0) {
- init_crc32();
- buf[ptr->offsets[1] - 1] = 1;
- ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
- msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
- printf("Partition marked as clean\n");
- }
- } else {
- int x;
- printf(" erase: 0x%08x\n",mtdInfo.erasesize);
- printf("=== trx ===\n");
- printf("mapped: 0x%08x\n", (unsigned)ptr);
- printf(" magic: 0x%08x\n", ptr->magic);
- printf(" len: 0x%08x\n", ptr->len);
- printf(" crc: 0x%08x\n", ptr->crc32);
- for (x = 0; x < 3; x++)
- printf(" offset[%d]: 0x%08x\n", x, ptr->offsets[x]);
- }
-
- munmap((void *) ptr, len);
- return 0;
-}