}
+int mk_dir(const char *mp, const char *name)
+{
+ char full_name[100];
+
+ sprintf(full_name, "%s/%s", mp, name);
+
+ return yaffs_mkdir(full_name, S_IREAD| S_IWRITE);
+}
+
+int mk_file(const char *mp, const char *name)
+{
+ char full_name[100];
+ int h;
+
+ sprintf(full_name, "%s/%s", mp, name);
+
+ h = yaffs_open(full_name, O_RDWR | O_CREAT | O_TRUNC, S_IREAD| S_IWRITE);
+
+ yaffs_write(h, name, strlen(name));
+
+ yaffs_close(h);
+ return 0;
+}
+
+void xx_test(const char *mountpt)
+{
+ char xx_buffer[1000];
+
+ yaffs_start_up();
+
+ yaffs_format(mountpt,0,0,0);
+
+ yaffs_mount(mountpt);
+ printf("mounted\n");
+ dumpDir(mountpt);
+
+ printf("create files\n");
+
+ mk_dir(mountpt, "foo");
+ mk_file(mountpt, "foo/f1");
+ mk_file(mountpt, "foo/f2");
+ mk_file(mountpt, "foo/f3");
+ mk_file(mountpt, "foo/f4");
+ dump_directory_tree(mountpt);
+
+ printf("unmount and remount\n");
+
+ /* Unmount/remount */
+ yaffs_unmount(mountpt);
+ yaffs_mount(mountpt);
+ dump_directory_tree(mountpt);
+}
+
+void yy_test(const char *mountpt)
+{
+ char xx_buffer[1000];
+
+ yaffs_start_up();
+
+ yaffs_mount(mountpt);
+ dump_directory_tree(mountpt);
+}
+
+
void readdir_test(const char *mountpt)
{
char xx_buffer[1000];
}
+void format_test(const char *mountpt)
+{
+ int ret;
+
+ yaffs_start_up();
+
+ ret = yaffs_format(mountpt, 0, 0, 0);
+ printf("yaffs_format(...,0, 0, 0) of unmounted returned %d\n", ret);
+
+ yaffs_mount(mountpt);
+
+ ret = yaffs_format(mountpt, 0, 0, 0);
+ printf("yaffs_format(...,0, 0, 0) of mounted returned %d\n", ret);
+
+ ret = yaffs_format(mountpt, 1, 0, 0);
+ printf("yaffs_format(...,1, 0, 0) of mounted returned %d\n", ret);
+
+ ret = yaffs_mount(mountpt);
+ printf("mount should return 0 returned %d\n", ret);
+
+ ret = yaffs_format(mountpt, 1, 0, 1);
+ printf("yaffs_format(...,1, 0, 1) of mounted returned %d\n", ret);
+
+ ret = yaffs_mount(mountpt);
+ printf("mount should return -1 returned %d\n", ret);
+}
int random_seed;
int simulate_power_failure;
// link_follow_test("/yaffs2");
//basic_utime_test("/yaffs2");
- max_files_test("/yaffs2");
+
+ //format_test("/yaffs2");
+
+ //max_files_test("/yaffs2");
//start_twice("/yaffs2");
//basic_utime_test("/yaffs2");
//case_insensitive_test("/yaffs2");
+ yy_test("/yaffs2");
+
+
return 0;
}
thisMatchLength = 0;
matching = 1;
+ if(!p)
+ continue;
+
while (matching && *p && *leftOver) {
/* Skip over any /s */
while (yaffsfs_IsPathDivider(*p))
int notDir = 0;
int loop = 0;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0)< 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
Y_LOFF_T maxRead;
u8 *buf = (u8 *) vbuf;
- if (!vbuf) {
+ if (yaffsfs_CheckMemRegion(vbuf, nbyte, 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int nToWrite = 0;
const u8 *buf = (const u8 *)vbuf;
- if (!vbuf) {
+ if (yaffsfs_CheckMemRegion(vbuf, nbyte, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
YCHAR *alt_newpath = NULL;
- if (!oldPath || !newPath) {
+ if (yaffsfs_CheckMemRegion(oldPath, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(newPath, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path || !buf) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(buf, sizeof(*buf), 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
- if (!buf) {
+ if (yaffsfs_CheckMemRegion(buf, sizeof(*buf), 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
- if (!path || !name || !data) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(name, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(data, size, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
- if (!name || !data) {
+ if (yaffsfs_CheckMemRegion(name, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(data, size, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path || !name || !data) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(name, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(data, size, 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
- if (!name || !data) {
+ if (yaffsfs_CheckMemRegion(name, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(data, size, 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path || !data) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(data, size, 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
- if (!data) {
+ if (yaffsfs_CheckMemRegion(data, size, 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int loop = 0;
int retVal = -1;
- if (!path || !name) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(name, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
- if (!name) {
+ if (yaffsfs_CheckMemRegion(name, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int loop = 0;
int retval = -1;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int result;
YCHAR *alt_path;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int result = YAFFS_FAIL;
struct yaffs_dev *dev = NULL;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
struct yaffs_dev *dev = NULL;
YCHAR *dummy;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
struct yaffs_dev *dev = NULL;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int retVal = -1;
struct yaffs_dev *dev = NULL;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
return yaffs_unmount2(path, 0);
}
+int yaffs_format(const YCHAR *path,
+ int unmount_flag,
+ int force_unmount_flag,
+ int remount_flag)
+{
+ int retVal = 0;
+ struct yaffs_dev *dev = NULL;
+ int result;
+
+ if (!path) {
+ yaffsfs_SetError(-EFAULT);
+ return -1;
+ }
+
+ if (yaffsfs_CheckPath(path) < 0) {
+ yaffsfs_SetError(-ENAMETOOLONG);
+ return -1;
+ }
+
+ yaffsfs_Lock();
+ dev = yaffsfs_FindMountPoint(path);
+
+ if (dev) {
+ int was_mounted = dev->is_mounted;
+
+ if (dev->is_mounted && unmount_flag) {
+ int inUse;
+ yaffs_flush_whole_cache(dev);
+ yaffs_checkpoint_save(dev);
+ inUse = yaffsfs_IsDevBusy(dev);
+ if (!inUse || force_unmount_flag) {
+ if (inUse)
+ yaffsfs_BreakDeviceHandles(dev);
+ yaffs_deinitialise(dev);
+ }
+ }
+
+ if(dev->is_mounted) {
+ yaffsfs_SetError(-EBUSY);
+ retVal = -1;
+ } else {
+ yaffs_format_dev(dev);
+ if(was_mounted && remount_flag) {
+ result = yaffs_guts_initialise(dev);
+ if (result == YAFFS_FAIL) {
+ yaffsfs_SetError(-ENOMEM);
+ retVal = -1;
+ }
+ }
+ }
+ } else {
+ yaffsfs_SetError(-ENODEV);
+ retVal = -1;
+ }
+
+ yaffsfs_Unlock();
+ return retVal;
+
+}
+
+
Y_LOFF_T yaffs_freespace(const YCHAR *path)
{
Y_LOFF_T retVal = -1;
struct yaffs_dev *dev = NULL;
YCHAR *dummy;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
struct yaffs_dev *dev = NULL;
YCHAR *dummy;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
struct yaffs_dev *dev = NULL;
YCHAR *dummy;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!dirname) {
+ if (yaffsfs_CheckMemRegion(dirname, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return NULL;
}
dsc = (struct yaffsfs_DirSearchContxt *) dirp;
+ if (yaffsfs_CheckMemRegion(dirp, sizeof(*dsc), 0) < 0)
+ return;
+
yaffsfs_Lock();
yaffsfs_SetDirRewound(dsc);
dsc = (struct yaffsfs_DirSearchContxt *) dirp;
- if (!dsc) {
+ if (yaffsfs_CheckMemRegion(dirp, sizeof(*dsc), 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!oldpath || !newpath) {
+ if (yaffsfs_CheckMemRegion(oldpath, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(newpath, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int notDir = 0;
int loop = 0;
- if (!path || !buf) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(buf, bufsiz, 1) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
int lnkLoop = 0;
YCHAR *newname;
- if (!oldpath || !linkpath) {
+ if (yaffsfs_CheckMemRegion(oldpath, 0, 0) < 0 ||
+ yaffsfs_CheckMemRegion(linkpath, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
{
struct yaffs_obj *obj;
- if (!path) {
+ if (yaffsfs_CheckMemRegion(path, 0, 0) < 0) {
yaffsfs_SetError(-EFAULT);
return -1;
}
#include "yaffs_guts.h"
#include "yaffs_getblockinfo.h"
#include "yaffs_tagscompat.h"
+ #include "yaffs_tagsmarshall.h"
#include "yaffs_nand.h"
#include "yaffs_yaffs1.h"
#include "yaffs_yaffs2.h"
static int yaffs_wr_data_obj(struct yaffs_obj *in, int inode_chunk,
const u8 *buffer, int n_bytes, int use_reserve);
-
+static void yaffs_fix_null_name(struct yaffs_obj *obj, YCHAR *name,
+ int buffer_size);
/* Function to calculate chunk and offset */
memset(buffer, 0xff, dev->data_bytes_per_chunk);
memset(&tags, 0, sizeof(tags));
tags.seq_number = YAFFS_SEQUENCE_BAD_BLOCK;
- if (dev->param.write_chunk_tags_fn(dev, chunk_id -
- dev->chunk_offset,
- buffer,
- &tags) != YAFFS_OK)
+ if (dev->tagger.write_chunk_tags_fn(dev, chunk_id -
+ dev->chunk_offset,
+ buffer,
+ &tags) != YAFFS_OK)
yaffs_trace(YAFFS_TRACE_ALWAYS,
"yaffs: Failed to write bad block marker to block %d",
flash_block);
return sum;
}
+
void yaffs_set_obj_name(struct yaffs_obj *obj, const YCHAR * name)
{
memset(obj->short_name, 0, sizeof(obj->short_name));
- if (name &&
+
+ if (name && !name[0]) {
+ yaffs_fix_null_name(obj, obj->short_name,
+ YAFFS_SHORT_NAME_LENGTH);
+ name = obj->short_name;
+ } else if (name &&
strnlen(name, YAFFS_SHORT_NAME_LENGTH + 1) <=
- YAFFS_SHORT_NAME_LENGTH)
+ YAFFS_SHORT_NAME_LENGTH) {
strcpy(obj->short_name, name);
- else
- obj->short_name[0] = _Y('\0');
+ }
+
obj->sum = yaffs_calc_name_sum(name);
}
int erased_chunks;
int checkpt_block_adjust;
- if (dev->param.gc_control && (dev->param.gc_control(dev) & 1) == 0)
+ if (dev->param.gc_control_fn &&
+ (dev->param.gc_control_fn(dev) & 1) == 0)
return YAFFS_OK;
if (dev->gc_disable)
}
if (n_copy != dev->data_bytes_per_chunk ||
+ !dev->param.cache_bypass_aligned ||
dev->param.inband_tags) {
/* An incomplete start or end chunk (or maybe both
* start and end chunk), or we're using inband tags,
+ * or we're forcing writes through the cache,
* so we want to use the cache buffers.
*/
if (dev->param.n_caches > 0) {
/*--------------------------- Initialisation code -------------------------- */
- static int yaffs_check_dev_fns(const struct yaffs_dev *dev)
+ static int yaffs_check_dev_fns(struct yaffs_dev *dev)
{
+ struct yaffs_driver *drv = &dev->drv;
+ struct yaffs_tags_handler *tagger = &dev->tagger;
+
/* Common functions, gotta have */
- if (!dev->param.erase_fn || !dev->param.initialise_flash_fn)
+ if (!drv->drv_read_chunk_fn ||
+ !drv->drv_write_chunk_fn ||
+ !drv->drv_erase_fn)
return 0;
- /* Can use the "with tags" style interface for yaffs1 or yaffs2 */
- if (dev->param.write_chunk_tags_fn &&
- dev->param.read_chunk_tags_fn &&
- !dev->param.write_chunk_fn &&
- !dev->param.read_chunk_fn &&
- dev->param.bad_block_fn && dev->param.query_block_fn)
- return 1;
+ if (dev->param.is_yaffs2 &&
+ (!drv->drv_mark_bad_fn || !drv->drv_check_bad_fn))
+ return 0;
- /* Can use the "spare" style interface for yaffs1 */
- if (!dev->param.is_yaffs2 &&
- !dev->param.write_chunk_tags_fn &&
- !dev->param.read_chunk_tags_fn &&
- dev->param.write_chunk_fn &&
- dev->param.read_chunk_fn &&
- !dev->param.bad_block_fn && !dev->param.query_block_fn)
- return 1;
+ /* Install the default tags marshalling functions if needed. */
+ yaffs_tags_compat_install(dev);
+ yaffs_tags_marshall_install(dev);
- return 0; /* bad */
+ /* Check we now have the marshalling functions required. */
+ if (!tagger->write_chunk_tags_fn ||
+ !tagger->read_chunk_tags_fn ||
+ !tagger->query_block_fn ||
+ !tagger->mark_bad_fn)
+ return 0;
+
+ return 1;
}
static int yaffs_create_initial_dir(struct yaffs_dev *dev)
dev->is_mounted = 0;
- if (dev->param.deinitialise_flash_fn)
- dev->param.deinitialise_flash_fn(dev);
+ yaffs_deinit_nand(dev);
}
}
return n_free;
}
+
+int yaffs_format_dev(struct yaffs_dev *dev)
+{
+ int i;
+ enum yaffs_block_state state;
+ u32 dummy;
+
+ if(dev->is_mounted)
+ return YAFFS_FAIL;
+
+ /*
+ * The runtime variables might not have been set up,
+ * so set up what we need.
+ */
+ dev->internal_start_block = dev->param.start_block;
+ dev->internal_end_block = dev->param.end_block;
+ dev->block_offset = 0;
+ dev->chunk_offset = 0;
+
+ if (dev->param.start_block == 0) {
+ dev->internal_start_block = dev->param.start_block + 1;
+ dev->internal_end_block = dev->param.end_block + 1;
+ dev->block_offset = 1;
+ dev->chunk_offset = dev->param.chunks_per_block;
+ }
+
+ for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
+ yaffs_query_init_block_state(dev, i, &state, &dummy);
+ if (state != YAFFS_BLOCK_STATE_DEAD)
+ yaffs_erase_block(dev, i);
+ }
+
+ return YAFFS_OK;
+}
+
+
/*
* Marshalling functions to get loff_t file sizes into and out of
* object headers.
/*
* Entry parameters set up way early. Yaffs sets up the rest.
* The structure should be zeroed out before use so that unused
- * and defualt values are zero.
+ * and default values are zero.
*/
int inband_tags; /* Use unband tags */
int n_caches; /* If <= 0, then short op caching is disabled,
* else the number of short op caches.
*/
+ int cache_bypass_aligned; /* If non-zero then bypass the cache for
+ * aligned writes.
+ */
+
int use_nand_ecc; /* Flag to decide whether or not to use
* NAND driver ECC on data (yaffs1) */
int tags_9bytes; /* Use 9 byte tags */
int enable_xattr; /* Enable xattribs */
- /* NAND access functions (Must be set before calling YAFFS) */
-
- int (*write_chunk_fn) (struct yaffs_dev *dev,
- int nand_chunk, const u8 *data,
- const struct yaffs_spare *spare);
- int (*read_chunk_fn) (struct yaffs_dev *dev,
- int nand_chunk, u8 *data,
- struct yaffs_spare *spare);
- int (*erase_fn) (struct yaffs_dev *dev, int flash_block);
- int (*initialise_flash_fn) (struct yaffs_dev *dev);
- int (*deinitialise_flash_fn) (struct yaffs_dev *dev);
-
- /* yaffs2 mode functions */
- int (*write_chunk_tags_fn) (struct yaffs_dev *dev,
- int nand_chunk, const u8 *data,
- const struct yaffs_ext_tags *tags);
- int (*read_chunk_tags_fn) (struct yaffs_dev *dev,
- int nand_chunk, u8 *data,
- struct yaffs_ext_tags *tags);
- int (*bad_block_fn) (struct yaffs_dev *dev, int block_no);
- int (*query_block_fn) (struct yaffs_dev *dev, int block_no,
- enum yaffs_block_state *state,
- u32 *seq_number);
+ int max_objects; /*
+ * Set to limit the number of objects created.
+ * 0 = no limit.
+ */
/* The remove_obj_fn function must be supplied by OS flavours that
* need it.
void (*sb_dirty_fn) (struct yaffs_dev *dev);
/* Callback to control garbage collection. */
- unsigned (*gc_control) (struct yaffs_dev *dev);
+ unsigned (*gc_control_fn) (struct yaffs_dev *dev);
/* Debug control flags. Don't use unless you know what you're doing */
int use_header_file_size; /* Flag to determine if we should use
int disable_summary;
- int max_objects; /*
- * Set to limit the number of objects created.
- * 0 = no limit.
- */
+ };
+
+ struct yaffs_driver {
+ int (*drv_write_chunk_fn) (struct yaffs_dev *dev, int nand_chunk,
+ const u8 *data, int data_len,
+ const u8 *oob, int oob_len);
+ int (*drv_read_chunk_fn) (struct yaffs_dev *dev, int nand_chunk,
+ u8 *data, int data_len,
+ u8 *oob, int oob_len,
+ enum yaffs_ecc_result *ecc_result);
+ int (*drv_erase_fn) (struct yaffs_dev *dev, int block_no);
+ int (*drv_mark_bad_fn) (struct yaffs_dev *dev, int block_no);
+ int (*drv_check_bad_fn) (struct yaffs_dev *dev, int block_no);
+ int (*drv_initialise_fn) (struct yaffs_dev *dev);
+ int (*drv_deinitialise_fn) (struct yaffs_dev *dev);
+ };
+
+ struct yaffs_tags_handler {
+ int (*write_chunk_tags_fn) (struct yaffs_dev *dev,
+ int nand_chunk, const u8 *data,
+ const struct yaffs_ext_tags *tags);
+ int (*read_chunk_tags_fn) (struct yaffs_dev *dev,
+ int nand_chunk, u8 *data,
+ struct yaffs_ext_tags *tags);
+
+ int (*query_block_fn) (struct yaffs_dev *dev, int block_no,
+ enum yaffs_block_state *state,
+ u32 *seq_number);
+ int (*mark_bad_fn) (struct yaffs_dev *dev, int block_no);
};
struct yaffs_dev {
struct yaffs_param param;
+ struct yaffs_driver drv;
+ struct yaffs_tags_handler tagger;
/* Context storage. Holds extra OS specific data for this device */
u32 n_page_writes;
u32 n_page_reads;
u32 n_erasures;
+ u32 n_bad_markings;
u32 n_erase_failures;
u32 n_gc_copies;
u32 all_gcs;
int yaffs_is_non_empty_dir(struct yaffs_obj *obj);
+int yaffs_format_dev(struct yaffs_dev *dev);
+
void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr,
int *chunk_out, u32 *offset_out);
/*
projects / yaffs2.git / commitdiff