diff options
Diffstat (limited to 'fs/yaffs2/utils/mkyaffs2image.c')
-rw-r--r-- | fs/yaffs2/utils/mkyaffs2image.c | 520 |
1 files changed, 0 insertions, 520 deletions
diff --git a/fs/yaffs2/utils/mkyaffs2image.c b/fs/yaffs2/utils/mkyaffs2image.c deleted file mode 100644 index 051666b..0000000 --- a/fs/yaffs2/utils/mkyaffs2image.c +++ /dev/null @@ -1,520 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * Nick Bane modifications flagged NCB - * Endian handling patches by James Ng. - * mkyaffs2image hacks by NCB - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * makeyaffs2image.c - * - * Makes a YAFFS2 file system image that can be used to load up a file system. - * Uses default Linux MTD layout - change if you need something different. - */ - -#include <stdlib.h> -#include <stdio.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <dirent.h> -#include <string.h> -#include <unistd.h> -#include "yaffs_ecc.h" -#include "yaffs_guts.h" - -#include "yaffs_tagsvalidity.h" -#include "yaffs_packedtags2.h" - -unsigned yaffs_traceMask=0; - -#define MAX_OBJECTS 10000 - -#define chunkSize 2048 -#define spareSize 64 - -const char * mkyaffsimage_c_version = "$Id: mkyaffs2image.c,v 1.4 2007/02/14 01:09:06 wookey Exp $"; - - -typedef struct -{ - dev_t dev; - ino_t ino; - int obj; -} objItem; - - -static objItem obj_list[MAX_OBJECTS]; -static int n_obj = 0; -static int obj_id = YAFFS_NOBJECT_BUCKETS + 1; - -static int nObjects, nDirectories, nPages; - -static int outFile; - -static int error; - -static int convert_endian = 0; - -static int obj_compare(const void *a, const void * b) -{ - objItem *oa, *ob; - - oa = (objItem *)a; - ob = (objItem *)b; - - if(oa->dev < ob->dev) return -1; - if(oa->dev > ob->dev) return 1; - if(oa->ino < ob->ino) return -1; - if(oa->ino > ob->ino) return 1; - - return 0; -} - - -static void add_obj_to_list(dev_t dev, ino_t ino, int obj) -{ - if(n_obj < MAX_OBJECTS) - { - obj_list[n_obj].dev = dev; - obj_list[n_obj].ino = ino; - obj_list[n_obj].obj = obj; - n_obj++; - qsort(obj_list,n_obj,sizeof(objItem),obj_compare); - - } - else - { - // oops! not enough space in the object array - fprintf(stderr,"Not enough space in object array\n"); - exit(2); - } -} - - -static int find_obj_in_list(dev_t dev, ino_t ino) -{ - objItem *i = NULL; - objItem test; - - test.dev = dev; - test.ino = ino; - - if(n_obj > 0) - { - i = bsearch(&test,obj_list,n_obj,sizeof(objItem),obj_compare); - } - - if(i) - { - return i->obj; - } - return -1; -} - -/* This little function converts a little endian tag to a big endian tag. - * NOTE: The tag is not usable after this other than calculating the CRC - * with. - */ -static void little_to_big_endian(yaffs_Tags *tagsPtr) -{ -#if 0 // FIXME NCB - yaffs_TagsUnion * tags = (yaffs_TagsUnion* )tagsPtr; // Work in bytes. - yaffs_TagsUnion temp; - - memset(&temp, 0, sizeof(temp)); - // Ick, I hate magic numbers. - temp.asBytes[0] = ((tags->asBytes[2] & 0x0F) << 4) | ((tags->asBytes[1] & 0xF0) >> 4); - temp.asBytes[1] = ((tags->asBytes[1] & 0x0F) << 4) | ((tags->asBytes[0] & 0xF0) >> 4); - temp.asBytes[2] = ((tags->asBytes[0] & 0x0F) << 4) | ((tags->asBytes[2] & 0x30) >> 2) | ((tags->asBytes[3] & 0xC0) >> 6); - temp.asBytes[3] = ((tags->asBytes[3] & 0x3F) << 2) | ((tags->asBytes[2] & 0xC0) >> 6); - temp.asBytes[4] = ((tags->asBytes[6] & 0x03) << 6) | ((tags->asBytes[5] & 0xFC) >> 2); - temp.asBytes[5] = ((tags->asBytes[5] & 0x03) << 6) | ((tags->asBytes[4] & 0xFC) >> 2); - temp.asBytes[6] = ((tags->asBytes[4] & 0x03) << 6) | (tags->asBytes[7] & 0x3F); - temp.asBytes[7] = (tags->asBytes[6] & 0xFC) | ((tags->asBytes[7] & 0xC0) >> 6); - - // Now copy it back. - tags->asBytes[0] = temp.asBytes[0]; - tags->asBytes[1] = temp.asBytes[1]; - tags->asBytes[2] = temp.asBytes[2]; - tags->asBytes[3] = temp.asBytes[3]; - tags->asBytes[4] = temp.asBytes[4]; - tags->asBytes[5] = temp.asBytes[5]; - tags->asBytes[6] = temp.asBytes[6]; - tags->asBytes[7] = temp.asBytes[7]; -#endif -} - -static int write_chunk(__u8 *data, __u32 objId, __u32 chunkId, __u32 nBytes) -{ - yaffs_ExtendedTags t; - yaffs_PackedTags2 pt; - - error = write(outFile,data,chunkSize); - if(error < 0) return error; - - yaffs_InitialiseTags(&t); - - t.chunkId = chunkId; -// t.serialNumber = 0; - t.serialNumber = 1; // **CHECK** - t.byteCount = nBytes; - t.objectId = objId; - - t.sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; - -// added NCB **CHECK** - t.chunkUsed = 1; - - if (convert_endian) - { - little_to_big_endian(&t); - } - - nPages++; - - yaffs_PackTags2(&pt,&t); - -// return write(outFile,&pt,sizeof(yaffs_PackedTags2)); - return write(outFile,&pt,spareSize); - -} - -#define SWAP32(x) ((((x) & 0x000000FF) << 24) | \ - (((x) & 0x0000FF00) << 8 ) | \ - (((x) & 0x00FF0000) >> 8 ) | \ - (((x) & 0xFF000000) >> 24)) - -#define SWAP16(x) ((((x) & 0x00FF) << 8) | \ - (((x) & 0xFF00) >> 8)) - -// This one is easier, since the types are more standard. No funky shifts here. -static void object_header_little_to_big_endian(yaffs_ObjectHeader* oh) -{ - oh->type = SWAP32(oh->type); // GCC makes enums 32 bits. - oh->parentObjectId = SWAP32(oh->parentObjectId); // int - oh->sum__NoLongerUsed = SWAP16(oh->sum__NoLongerUsed); // __u16 - Not used, but done for completeness. - // name = skip. Char array. Not swapped. - oh->yst_mode = SWAP32(oh->yst_mode); -#ifdef CONFIG_YAFFS_WINCE // WinCE doesn't implement this, but we need to just in case. - // In fact, WinCE would be *THE* place where this would be an issue! - oh->notForWinCE[0] = SWAP32(oh->notForWinCE[0]); - oh->notForWinCE[1] = SWAP32(oh->notForWinCE[1]); - oh->notForWinCE[2] = SWAP32(oh->notForWinCE[2]); - oh->notForWinCE[3] = SWAP32(oh->notForWinCE[3]); - oh->notForWinCE[4] = SWAP32(oh->notForWinCE[4]); -#else - // Regular POSIX. - oh->yst_uid = SWAP32(oh->yst_uid); - oh->yst_gid = SWAP32(oh->yst_gid); - oh->yst_atime = SWAP32(oh->yst_atime); - oh->yst_mtime = SWAP32(oh->yst_mtime); - oh->yst_ctime = SWAP32(oh->yst_ctime); -#endif - - oh->fileSize = SWAP32(oh->fileSize); // Aiee. An int... signed, at that! - oh->equivalentObjectId = SWAP32(oh->equivalentObjectId); - // alias - char array. - oh->yst_rdev = SWAP32(oh->yst_rdev); - -#ifdef CONFIG_YAFFS_WINCE - oh->win_ctime[0] = SWAP32(oh->win_ctime[0]); - oh->win_ctime[1] = SWAP32(oh->win_ctime[1]); - oh->win_atime[0] = SWAP32(oh->win_atime[0]); - oh->win_atime[1] = SWAP32(oh->win_atime[1]); - oh->win_mtime[0] = SWAP32(oh->win_mtime[0]); - oh->win_mtime[1] = SWAP32(oh->win_mtime[1]); - oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]); - oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]); - oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]); - oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]); - oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]); - oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]); -#else - oh->roomToGrow[0] = SWAP32(oh->roomToGrow[0]); - oh->roomToGrow[1] = SWAP32(oh->roomToGrow[1]); - oh->roomToGrow[2] = SWAP32(oh->roomToGrow[2]); - oh->roomToGrow[3] = SWAP32(oh->roomToGrow[3]); - oh->roomToGrow[4] = SWAP32(oh->roomToGrow[4]); - oh->roomToGrow[5] = SWAP32(oh->roomToGrow[5]); - oh->roomToGrow[6] = SWAP32(oh->roomToGrow[6]); - oh->roomToGrow[7] = SWAP32(oh->roomToGrow[7]); - oh->roomToGrow[8] = SWAP32(oh->roomToGrow[8]); - oh->roomToGrow[9] = SWAP32(oh->roomToGrow[9]); - oh->roomToGrow[10] = SWAP32(oh->roomToGrow[10]); - oh->roomToGrow[11] = SWAP32(oh->roomToGrow[11]); -#endif -} - -static int write_object_header(int objId, yaffs_ObjectType t, struct stat *s, int parent, const char *name, int equivalentObj, const char * alias) -{ - __u8 bytes[chunkSize]; - - - yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *)bytes; - - memset(bytes,0xff,sizeof(bytes)); - - oh->type = t; - - oh->parentObjectId = parent; - - strncpy(oh->name,name,YAFFS_MAX_NAME_LENGTH); - - - if(t != YAFFS_OBJECT_TYPE_HARDLINK) - { - oh->yst_mode = s->st_mode; - oh->yst_uid = s->st_uid; -// NCB 12/9/02 oh->yst_gid = s->yst_uid; - oh->yst_gid = s->st_gid; - oh->yst_atime = s->st_atime; - oh->yst_mtime = s->st_mtime; - oh->yst_ctime = s->st_ctime; - oh->yst_rdev = s->st_rdev; - } - - if(t == YAFFS_OBJECT_TYPE_FILE) - { - oh->fileSize = s->st_size; - } - - if(t == YAFFS_OBJECT_TYPE_HARDLINK) - { - oh->equivalentObjectId = equivalentObj; - } - - if(t == YAFFS_OBJECT_TYPE_SYMLINK) - { - strncpy(oh->alias,alias,YAFFS_MAX_ALIAS_LENGTH); - } - - if (convert_endian) - { - object_header_little_to_big_endian(oh); - } - - return write_chunk(bytes,objId,0,0xffff); - -} - - -static int process_directory(int parent, const char *path) -{ - - DIR *dir; - struct dirent *entry; - - nDirectories++; - - dir = opendir(path); - - if(dir) - { - while((entry = readdir(dir)) != NULL) - { - - /* Ignore . and .. */ - if(strcmp(entry->d_name,".") && - strcmp(entry->d_name,"..")) - { - char full_name[500]; - struct stat stats; - int equivalentObj; - int newObj; - - sprintf(full_name,"%s/%s",path,entry->d_name); - - lstat(full_name,&stats); - - if(S_ISLNK(stats.st_mode) || - S_ISREG(stats.st_mode) || - S_ISDIR(stats.st_mode) || - S_ISFIFO(stats.st_mode) || - S_ISBLK(stats.st_mode) || - S_ISCHR(stats.st_mode) || - S_ISSOCK(stats.st_mode)) - { - - newObj = obj_id++; - nObjects++; - - printf("Object %d, %s is a ",newObj,full_name); - - /* We're going to create an object for it */ - if((equivalentObj = find_obj_in_list(stats.st_dev, stats.st_ino)) > 0) - { - /* we need to make a hard link */ - printf("hard link to object %d\n",equivalentObj); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_HARDLINK, &stats, parent, entry->d_name, equivalentObj, NULL); - } - else - { - - add_obj_to_list(stats.st_dev,stats.st_ino,newObj); - - if(S_ISLNK(stats.st_mode)) - { - - char symname[500]; - - memset(symname,0, sizeof(symname)); - - readlink(full_name,symname,sizeof(symname) -1); - - printf("symlink to \"%s\"\n",symname); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SYMLINK, &stats, parent, entry->d_name, -1, symname); - - } - else if(S_ISREG(stats.st_mode)) - { - printf("file, "); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_FILE, &stats, parent, entry->d_name, -1, NULL); - - if(error >= 0) - { - int h; - __u8 bytes[chunkSize]; - int nBytes; - int chunk = 0; - - h = open(full_name,O_RDONLY); - if(h >= 0) - { - memset(bytes,0xff,sizeof(bytes)); - while((nBytes = read(h,bytes,sizeof(bytes))) > 0) - { - chunk++; - write_chunk(bytes,newObj,chunk,nBytes); - memset(bytes,0xff,sizeof(bytes)); - } - if(nBytes < 0) - error = nBytes; - - printf("%d data chunks written\n",chunk); - } - else - { - perror("Error opening file"); - } - close(h); - - } - - } - else if(S_ISSOCK(stats.st_mode)) - { - printf("socket\n"); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL); - } - else if(S_ISFIFO(stats.st_mode)) - { - printf("fifo\n"); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL); - } - else if(S_ISCHR(stats.st_mode)) - { - printf("character device\n"); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL); - } - else if(S_ISBLK(stats.st_mode)) - { - printf("block device\n"); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_SPECIAL, &stats, parent, entry->d_name, -1, NULL); - } - else if(S_ISDIR(stats.st_mode)) - { - printf("directory\n"); - error = write_object_header(newObj, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, parent, entry->d_name, -1, NULL); -// NCB modified 10/9/2001 process_directory(1,full_name); - process_directory(newObj,full_name); - } - } - } - else - { - printf(" we don't handle this type\n"); - } - } - } - } - - return 0; - -} - - -int main(int argc, char *argv[]) -{ - struct stat stats; - - printf("mkyaffs2image: image building tool for YAFFS2 built "__DATE__"\n"); - - if(argc < 3) - { - printf("usage: mkyaffs2image dir image_file [convert]\n"); - printf(" dir the directory tree to be converted\n"); - printf(" image_file the output file to hold the image\n"); - printf(" 'convert' produce a big-endian image from a little-endian machine\n"); - exit(1); - } - - if ((argc == 4) && (!strncmp(argv[3], "convert", strlen("convert")))) - { - convert_endian = 1; - } - - if(stat(argv[1],&stats) < 0) - { - printf("Could not stat %s\n",argv[1]); - exit(1); - } - - if(!S_ISDIR(stats.st_mode)) - { - printf(" %s is not a directory\n",argv[1]); - exit(1); - } - - outFile = open(argv[2],O_CREAT | O_TRUNC | O_WRONLY, S_IREAD | S_IWRITE); - - - if(outFile < 0) - { - printf("Could not open output file %s\n",argv[2]); - exit(1); - } - - printf("Processing directory %s into image file %s\n",argv[1],argv[2]); - error = write_object_header(1, YAFFS_OBJECT_TYPE_DIRECTORY, &stats, 1,"", -1, NULL); - if(error) - error = process_directory(YAFFS_OBJECTID_ROOT,argv[1]); - - close(outFile); - - if(error < 0) - { - perror("operation incomplete"); - exit(1); - } - else - { - printf("Operation complete.\n" - "%d objects in %d directories\n" - "%d NAND pages\n",nObjects, nDirectories, nPages); - } - - close(outFile); - - exit(0); -} - |