unified preinit environment

[openwrt.git] / target / linux / brcm-2.4 / src / jffs2root.c

diff --git a/target/linux/brcm-2.4/src/jffs2root.c b/target/linux/brcm-2.4/src/jffs2root.c
deleted file mode 100644 (file)
index 0afca57..0000000
--- 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;
-}