int ubifs_size(const char *filename, loff_t *size)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
unsigned long inum;
struct inode *inode;
int err = 0;
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
inum = ubifs_findfile(ubifs_sb, (char *)filename);
if (!inum) {
err = -1;
goto out;
}
inode = ubifs_iget(ubifs_sb, inum);
if (IS_ERR(inode)) {
printf("%s: Error reading inode %ld!\n", __func__, inum);
err = PTR_ERR(inode);
goto out;
}
*size = inode->i_size;
ubifs_iput(inode);
out:
ubi_close_volume(c->ubi);
return err;
}
int ubifs_exists(const char *filename)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
unsigned long inum;
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
inum = ubifs_findfile(ubifs_sb, (char *)filename);
ubi_close_volume(c->ubi);
return inum != 0;
}
int ubifs_ls(char *filename)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
struct file *file;
struct dentry *dentry;
struct inode *dir;
void *dirent = NULL;
unsigned long inum;
int ret = 0;
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
inum = ubifs_findfile(ubifs_sb, filename);
if (!inum) {
ret = -1;
goto out;
}
file = kzalloc(sizeof(struct file), 0);
dentry = kzalloc(sizeof(struct dentry), 0);
dir = kzalloc(sizeof(struct inode), 0);
if (!file || !dentry || !dir) {
printf("%s: Error, no memory for malloc!\n", __func__);
ret = -ENOMEM;
goto out_mem;
}
dir->i_sb = ubifs_sb;
file->f_path.dentry = dentry;
file->f_path.dentry->d_parent = dentry;
file->f_path.dentry->d_inode = dir;
file->f_path.dentry->d_inode->i_ino = inum;
file->f_pos = 1;
file->private_data = NULL;
ubifs_printdir(file, dirent);
out_mem:
if (file)
free(file);
if (dentry)
free(dentry);
if (dir)
free(dir);
out:
ubi_close_volume(c->ubi);
return ret;
}
int ubifs_filesize(char *filename, u32* size)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
unsigned long inum=0;
struct inode *inode=NULL;
int err = 0;
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
if (IS_ERR(c->ubi)) {
err = PTR_ERR(c->ubi);
goto out_no_close;
}
inum = ubifs_findfile(ubifs_sb, filename);
if (!inum) {
err = -1;
goto out;
}
/*
* Read file inode
*/
inode = ubifs_iget(ubifs_sb, inum);
if (IS_ERR(inode)) {
printf("%s: Error reading inode %ld!\n", __func__, inum);
err = PTR_ERR(inode);
goto out;
}
/*
* If no size was specified or if size bigger than filesize
* set size to filesize
*/
//if ((size == 0) || (size > inode->i_size))
*size = inode->i_size;
printf("ubifs_filesize %08x \n", *size);
//return 0;
out:
ubi_close_volume(c->ubi);
out_no_close:
return err;
}
int ubifs_load(char *filename, u32 addr, u32 size)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
unsigned long inum;
struct inode *inode;
struct page page;
int err = 0;
int i;
int count;
int last_block_size = 0;
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
/* ubifs_findfile will resolve symlinks, so we know that we get
* the real file here */
inum = ubifs_findfile(ubifs_sb, filename);
if (!inum) {
err = -1;
goto out;
}
/*
* Read file inode
*/
inode = ubifs_iget(ubifs_sb, inum);
if (IS_ERR(inode)) {
printf("%s: Error reading inode %ld!\n", __func__, inum);
err = PTR_ERR(inode);
goto out;
}
/*
* If no size was specified or if size bigger than filesize
* set size to filesize
*/
if ((size == 0) || (size > inode->i_size))
size = inode->i_size;
count = (size + UBIFS_BLOCK_SIZE - 1) >> UBIFS_BLOCK_SHIFT;
printf("Loading file '%s' to addr 0x%08x with size %d (0x%08x)...\n",
filename, addr, size, size);
page.addr = (void *)addr;
page.index = 0;
page.inode = inode;
for (i = 0; i < count; i++) {
/*
* Make sure to not read beyond the requested size
*/
if ((i + 1) == count)
last_block_size = size - (i * PAGE_SIZE);
err = do_readpage(c, inode, &page, last_block_size);
if (err)
break;
page.addr += PAGE_SIZE;
page.index++;
}
if (err)
printf("Error reading file '%s'\n", filename);
else
printf("Done\n");
ubifs_iput(inode);
out:
ubi_close_volume(c->ubi);
return err;
}
int ubifs_load(char *filename, u32 addr, u32 size)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
unsigned long inum;
struct inode *inode;
struct page page;
int err = 0;
int i;
int count;
char link_name[64];
struct ubifs_inode *ui;
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
inum = ubifs_findfile(ubifs_sb, filename);
if (!inum) {
err = -1;
goto out;
}
/*
* Read file inode
*/
inode = ubifs_iget(ubifs_sb, inum);
if (IS_ERR(inode)) {
printf("%s: Error reading inode %ld!\n", __func__, inum);
err = PTR_ERR(inode);
goto out;
}
/*
* Check for symbolic link
*/
ui = ubifs_inode(inode);
if (((inode->i_mode & S_IFMT) == S_IFLNK) && ui->data_len) {
memcpy(link_name, ui->data, ui->data_len);
printf("%s is linked to %s!\n", filename, link_name);
ubifs_iput(inode);
/*
* Now we have the "real" filename, call ubifs_load()
* again (recursive call) to load this file instead
*/
return ubifs_load(link_name, addr, size);
}
/*
* If no size was specified or if size bigger than filesize
* set size to filesize
*/
if ((size == 0) || (size > inode->i_size))
size = inode->i_size;
count = (size + UBIFS_BLOCK_SIZE - 1) >> UBIFS_BLOCK_SHIFT;
printf("Loading file '%s' to addr 0x%08x with size %d (0x%08x)...\n",
filename, addr, size, size);
page.addr = (void *)addr;
page.index = 0;
page.inode = inode;
for (i = 0; i < count; i++) {
err = do_readpage(c, inode, &page);
if (err)
break;
page.addr += PAGE_SIZE;
page.index++;
}
if (err)
printf("Error reading file '%s'\n", filename);
else
printf("Done\n");
ubifs_iput(inode);
out:
ubi_close_volume(c->ubi);
return err;
}
int ubifs_read(const char *filename, void *buf, loff_t offset,
loff_t size, loff_t *actread)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
unsigned long inum;
struct inode *inode;
struct page page;
int err = 0;
int i;
int count;
int last_block_size = 0;
*actread = 0;
if (offset & (PAGE_SIZE - 1)) {
printf("ubifs: Error offset must be a multple of %d\n",
PAGE_SIZE);
return -1;
}
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
/* ubifs_findfile will resolve symlinks, so we know that we get
* the real file here */
inum = ubifs_findfile(ubifs_sb, (char *)filename);
if (!inum) {
err = -1;
goto out;
}
/*
* Read file inode
*/
inode = ubifs_iget(ubifs_sb, inum);
if (IS_ERR(inode)) {
printf("%s: Error reading inode %ld!\n", __func__, inum);
err = PTR_ERR(inode);
goto out;
}
if (offset > inode->i_size) {
printf("ubifs: Error offset (%lld) > file-size (%lld)\n",
offset, size);
err = -1;
goto put_inode;
}
/*
* If no size was specified or if size bigger than filesize
* set size to filesize
*/
if ((size == 0) || (size > (inode->i_size - offset)))
size = inode->i_size - offset;
count = (size + UBIFS_BLOCK_SIZE - 1) >> UBIFS_BLOCK_SHIFT;
page.addr = buf;
page.index = offset / PAGE_SIZE;
page.inode = inode;
for (i = 0; i < count; i++) {
/*
* Make sure to not read beyond the requested size
*/
if (((i + 1) == count) && (size < inode->i_size))
last_block_size = size - (i * PAGE_SIZE);
err = do_readpage(c, inode, &page, last_block_size);
if (err)
break;
page.addr += PAGE_SIZE;
page.index++;
}
if (err) {
printf("Error reading file '%s'\n", filename);
*actread = i * PAGE_SIZE;
} else {
*actread = size;
}
put_inode:
ubifs_iput(inode);
out:
ubi_close_volume(c->ubi);
return err;
}
int ubifs_part_load(char *filename, u32 addr, u32 offset, u32 size)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
unsigned long inum=0;
struct inode *inode=NULL;
struct page page;
int err = 0;
int i=0;
int count=0;
int last_block_size = 0;
char link_name[64];
struct ubifs_inode *ui=NULL;
if(offset % PAGE_SIZE != 0)
{
printf("%s: offset(0x%x) should align to page size(0x%x), at %d\n", __func__, offset, PAGE_SIZE, __LINE__);
return 1;
}
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
if (IS_ERR(c->ubi)) {
err = PTR_ERR(c->ubi);
goto out_no_close;
}
inum = ubifs_findfile(ubifs_sb, filename);
if (!inum) {
err = -1;
goto out;
}
/*
* Read file inode
*/
inode = ubifs_iget(ubifs_sb, inum);
if (IS_ERR(inode)) {
printf("%s: Error reading inode %ld!\n", __func__, inum);
err = PTR_ERR(inode);
goto out;
}
/*
* Check for symbolic link
*/
ui = ubifs_inode(inode);
if (((inode->i_mode & S_IFMT) == S_IFLNK) && ui->data_len) {
memcpy(link_name, ui->data, ui->data_len);
link_name[ui->data_len] = '\0';
printf("%s is linked to %s!\n", filename, link_name);
ubifs_iput(inode);
/*
* Now we have the "real" filename, call ubifs_load()
* again (recursive call) to load this file instead
*/
return ubifs_part_load(link_name, addr, offset, size);
}
/*
* If no size was specified or if size bigger than filesize
* set size to filesize
*/
if ((size == 0) || (size > inode->i_size))
size = inode->i_size;
count = (size + UBIFS_BLOCK_SIZE - 1) >> UBIFS_BLOCK_SHIFT;
printf("Loading file '%s' to addr 0x%08x with size %d (0x%08x)...\n",
filename, addr, size, size);
page.addr = (void *)addr;
page.index = (offset / PAGE_SIZE);
page.inode = inode;
//offset
for (i = 0; i < count; i++) {
/*
* Make sure to not read beyond the requested size
*/
if (((i + 1) == count) && (size < inode->i_size))
last_block_size = size - (i * PAGE_SIZE);
err = do_readpage(c, inode, &page, last_block_size);
if (err)
break;
page.addr += PAGE_SIZE;
page.index++;
}
if (err)
printf("Error reading file '%s'\n", filename);
else
printf("Done\n");
ubifs_iput(inode);
out:
ubi_close_volume(c->ubi);
out_no_close:
return err;
}