/*
* 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
+ * Copyright (C) 2002-2018 Aleph One Ltd.
*
* Created by Charles Manning <charles@aleph1.co.uk>
- * Nick Bane modifications flagged NCB
+ * Nick Bane modifications flagged NCBw
* Endian handling patches by James Ng.
* mkyaffs2image hacks by NCB
*
*/
/*
- * makeyaffs2image.c
+ * makeyaffs2image.c
*
* Makes a YAFFS2 file system image that can be used to load up a file system.
* Uses default Linux MTD layout - search for "NAND LAYOUT" to change.
*/
-
+
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <assert.h>
#include "yaffs_ecc.h"
#include "yaffs_guts.h"
+#include "yaffs_endian.h"
-#include "yaffs_tagsvalidity.h"
#include "yaffs_packedtags2.h"
unsigned yaffs_trace_mask=0;
#define spareSize 64
#define pagesPerBlock 64
-const char * mkyaffsimage_c_version = "$Id: mkyaffs2image.c,v 1.5 2010-01-11 21:43:18 charles Exp $";
typedef struct
int obj;
} objItem;
+struct yaffs_dev dummy_dev = {.swap_endian = 0};
+
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 n_obj, nDirectories, nPages;
static int outFile;
static int convert_endian = 0;
+/* Provide our own endian swap that does nothing. */
+void yaffs_do_endian_packed_tags2(struct yaffs_dev *dev,
+ struct yaffs_packed_tags2_tags_only *ptt)
+{
+#if 0
+ if (!dev->swap_endian)
+ return;
+ ptt->seq_number = swap_u32(ptt->seq_number);
+ ptt->obj_id = swap_u32(ptt->obj_id);
+ ptt->chunk_id = swap_u32(ptt->chunk_id);
+ ptt->n_bytes = swap_u32(ptt->n_bytes);
+#endif
+}
+
static void fatal(const char *fn)
{
perror(fn);
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;
}
obj_list[n_obj].obj = obj;
n_obj++;
qsort(obj_list,n_obj,sizeof(objItem),obj_compare);
-
+
}
else
{
test.dev = dev;
test.ino = ino;
-
+
if(n_obj > 0)
{
i = bsearch(&test,obj_list,n_obj,sizeof(objItem),obj_compare);
* NOTE: The tag is not usable after this other than calculating the CRC
* with.
*/
-static void little_to_big_endian(yaffs_Tags *tagsPtr)
+static void little_to_big_endian(struct yaffs_ext_tags *tagsPtr)
{
#if 0 // FIXME NCB
- yaffs_tags_union_t * tags = (yaffs_tags_union_t* )tagsPtr; // Work in bytes.
- yaffs_tags_union_t temp;
+ union yaffs_tags_union * tags = (union yaffs_tags_union* )tagsPtr; // Work in bytes.
+ union yaffs_tags_union 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);
+ temp.as_bytes[0] = ((tags->as_bytes[2] & 0x0F) << 4) | ((tags->as_bytes[1] & 0xF0) >> 4);
+ temp.as_bytes[1] = ((tags->as_bytes[1] & 0x0F) << 4) | ((tags->as_bytes[0] & 0xF0) >> 4);
+ temp.as_bytes[2] = ((tags->as_bytes[0] & 0x0F) << 4) | ((tags->as_bytes[2] & 0x30) >> 2) | ((tags->as_bytes[3] & 0xC0) >> 6);
+ temp.as_bytes[3] = ((tags->as_bytes[3] & 0x3F) << 2) | ((tags->as_bytes[2] & 0xC0) >> 6);
+ temp.as_bytes[4] = ((tags->as_bytes[6] & 0x03) << 6) | ((tags->as_bytes[5] & 0xFC) >> 2);
+ temp.as_bytes[5] = ((tags->as_bytes[5] & 0x03) << 6) | ((tags->as_bytes[4] & 0xFC) >> 2);
+ temp.as_bytes[6] = ((tags->as_bytes[4] & 0x03) << 6) | (tags->as_bytes[7] & 0x3F);
+ temp.as_bytes[7] = (tags->as_bytes[6] & 0xFC) | ((tags->as_bytes[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];
+ tags->as_bytes[0] = temp.as_bytes[0];
+ tags->as_bytes[1] = temp.as_bytes[1];
+ tags->as_bytes[2] = temp.as_bytes[2];
+ tags->as_bytes[3] = temp.as_bytes[3];
+ tags->as_bytes[4] = temp.as_bytes[4];
+ tags->as_bytes[5] = temp.as_bytes[5];
+ tags->as_bytes[6] = temp.as_bytes[6];
+ tags->as_bytes[7] = temp.as_bytes[7];
#endif
}
-static void shuffle_oob(char *spareData, yaffs_PackedTags2 *pt)
+static void shuffle_oob(char *spareData, struct yaffs_packed_tags2 *pt)
{
assert(sizeof(*pt) <= spareSize);
// NAND LAYOUT: For non-trivial OOB orderings, here would be a good place to shuffle.
memcpy(spareData, pt, sizeof(*pt));
}
-static int write_chunk(__u8 *data, __u32 objId, __u32 chunkId, __u32 nBytes)
+static int write_chunk(u8 *data, u32 id, u32 chunk_id, u32 n_bytes)
{
- yaffs_ExtendedTags t;
- yaffs_PackedTags2 pt;
+ struct yaffs_ext_tags t;
+ struct yaffs_packed_tags2 pt;
char spareData[spareSize];
if (write(outFile,data,chunkSize) != chunkSize)
fatal("write");
- yaffs_init_tags(&t);
-
- t.chunkId = chunkId;
-// t.serialNumber = 0;
- t.serialNumber = 1; // **CHECK**
- t.byteCount = nBytes;
- t.objectId = objId;
-
- t.sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
+ memset(&t, 0, sizeof(t));
+
+ t.chunk_id = chunk_id;
+// t.serial_number = 0;
+ t.serial_number = 1; // **CHECK**
+ t.n_bytes = n_bytes;
+ t.obj_id = id;
+
+ t.seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER;
// added NCB **CHECK**
- t.chunkUsed = 1;
+ t.chunk_used = 1;
if (convert_endian)
{
nPages++;
memset(&pt, 0, sizeof(pt));
- yaffs_PackTags2(&pt,&t,1);
+ yaffs_pack_tags2(&dummy_dev, &pt,&t,1);
memset(spareData, 0xff, sizeof(spareData));
shuffle_oob(spareData, &pt);
#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)
+static void object_header_little_to_big_endian(struct yaffs_obj_hdr* oh)
{
- int i;
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.
+ oh->parent_obj_id = SWAP32(oh->parent_obj_id); // int
+ oh->sum_no_longer_used = SWAP16(oh->sum_no_longer_used); // 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.
- // Why? WINCE is little-endian only.
- {
- int n = sizeof(oh->notForWinCE)/sizeof(oh->notForWinCE[0]);
- for(i = 0; i < n; i++)
- oh->notForWinCE[i] = SWAP32(oh->notForWinCE[i]);
- }
-#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);
+ oh->file_size_low = SWAP32(oh->file_size_low); // Aiee. An int... signed, at that!
+ oh->file_size_high = SWAP32(oh->file_size_high); // Aiee. An int... signed, at that!
+ oh->equiv_id = SWAP32(oh->equiv_id);
// 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]);
-#else
- {
- int n = sizeof(oh->roomToGrow)/sizeof(oh->roomToGrow[0]);
- for(i=0; i < n; i++)
- oh->roomToGrow[i] = SWAP32(oh->roomToGrow[i]);
- }
+ oh->reserved[0] = SWAP32(oh->reserved[0]);
+#if 0
+ oh->reserved[1] = SWAP32(oh->reserved[1]);
#endif
+ oh->inband_shadowed_obj_id = SWAP32(oh->inband_shadowed_obj_id);
+ oh->inband_is_shrink = SWAP32(oh->inband_is_shrink);
+ oh->shadows_obj = SWAP32(oh->shadows_obj);
+ oh->is_shrink = SWAP32(oh->is_shrink);
}
-static int write_object_header(int objId, yaffs_ObjectType t, struct stat *s, int parent, const char *name, int equivalentObj, const char * alias)
+
+static int write_object_header(int id, enum yaffs_obj_type t, struct stat *s, int parent, const char *name, int equivalentObj, const char * alias)
{
- __u8 bytes[chunkSize];
-
-
- yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *)bytes;
-
+ u8 bytes[chunkSize];
+
+
+ struct yaffs_obj_hdr *oh = (struct yaffs_obj_hdr *)bytes;
+
memset(bytes,0xff,sizeof(bytes));
-
+
oh->type = t;
- oh->parentObjectId = parent;
-
+ oh->parent_obj_id = parent;
+
if (strlen(name)+1 > sizeof(oh->name))
{
errno = ENAMETOOLONG;
}
memset(oh->name,0,sizeof(oh->name));
strcpy(oh->name,name);
-
-
+
+
if(t != YAFFS_OBJECT_TYPE_HARDLINK)
{
oh->yst_mode = s->st_mode;
oh->yst_ctime = s->st_ctime;
oh->yst_rdev = s->st_rdev;
}
-
+
if(t == YAFFS_OBJECT_TYPE_FILE)
{
- oh->fileSize = s->st_size;
+ oh->file_size_low = s->st_size;
+ oh->file_size_high = (s->st_size >> 32);
}
-
+
if(t == YAFFS_OBJECT_TYPE_HARDLINK)
{
- oh->equivalentObjectId = equivalentObj;
+ oh->equiv_id = equivalentObj;
}
-
+
if(t == YAFFS_OBJECT_TYPE_SYMLINK)
{
if (strlen(alias)+1 > sizeof(oh->alias))
{
object_header_little_to_big_endian(oh);
}
-
- return write_chunk(bytes,objId,0,0xffff);
-
+
+ return write_chunk(bytes,id,0,0xffff);
+
}
-static void pad_image()
+static void pad_image(void)
{
- __u8 data[chunkSize + spareSize];
+ u8 data[chunkSize + spareSize];
int padPages = (nPages % pagesPerBlock);
if (padPages)
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,".."))
struct stat stats;
int equivalentObj;
int newObj;
-
+
if (snprintf(full_name,sizeof(full_name),"%s/%s",path,entry->d_name) >= (int)sizeof(full_name))
{
error = -1;
continue;
}
-
+
if (lstat(full_name,&stats) < 0)
{
warn("lstat");
continue;
}
-
+
if(S_ISLNK(stats.st_mode) ||
S_ISREG(stats.st_mode) ||
S_ISDIR(stats.st_mode) ||
S_ISCHR(stats.st_mode) ||
S_ISSOCK(stats.st_mode))
{
-
+
newObj = obj_id++;
- nObjects++;
-
+ n_obj++;
+
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)
{
printf("hard link to object %d\n",equivalentObj);
write_object_header(newObj, YAFFS_OBJECT_TYPE_HARDLINK, &stats, parent, entry->d_name, equivalentObj, NULL);
}
- else
+ 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));
-
+
if (readlink(full_name,symname,sizeof(symname) -1) < 0)
{
warn("readlink");
if(write_object_header(newObj, YAFFS_OBJECT_TYPE_FILE, &stats, parent, entry->d_name, -1, NULL) == 0)
{
int h;
- __u8 bytes[chunkSize];
- int nBytes;
+ u8 bytes[chunkSize];
+ int n_bytes;
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)
+ while((n_bytes = read(h,bytes,sizeof(bytes))) > 0)
{
chunk++;
- write_chunk(bytes,newObj,chunk,nBytes);
+ write_chunk(bytes,newObj,chunk,n_bytes);
memset(bytes,0xff,sizeof(bytes));
}
- if(nBytes < 0)
+ if(n_bytes < 0)
warn("read");
-
+
printf("%d data chunks written\n",chunk);
close(h);
}
{
warn("open");
}
-
- }
-
+
+ }
+
}
else if(S_ISSOCK(stats.st_mode))
{
}
closedir(dir);
}
-
+
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");
{
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]);
process_directory(YAFFS_OBJECTID_ROOT,argv[1]);
-
+
pad_image();
close(outFile);
-
+
if(error)
{
errno = savedErrno;
{
printf("Operation complete.\n"
"%d objects in %d directories\n"
- "%d NAND pages\n",nObjects, nDirectories, nPages);
+ "%d NAND pages\n",n_obj, nDirectories, nPages);
}
-
+
exit(error);
-}
+}
projects / yaffs2.git / blobdiff