Exemple #1
0
static int
_linux_ntfs_mkdir(struct inode *dir, struct dentry* d, int mode)
{
	int error;
	struct inode *r = 0;
	ntfs_volume *vol;
	ntfs_inode *ino;
	ntfs_attribute *si;

	ntfs_debug (DEBUG_DIR1, "mkdir %s in %x\n",d->d_name.name, dir->i_ino);
	error = ENAMETOOLONG;
	if (d->d_name.len > /* FIXME */255)
		goto out;

	error = EIO;
	r = get_empty_inode();
	if (!r)
		goto out;
	
	vol = NTFS_INO2VOL(dir);
#ifdef NTFS_IN_LINUX_KERNEL
	ino = NTFS_LINO2NINO(r);
#else
	ino = ntfs_malloc(sizeof(ntfs_inode));
	error = ENOMEM;
	if(!ino)
		goto out;
	r->u.generic_ip = ino;
#endif
	error = ntfs_mkdir(NTFS_LINO2NINO(dir), 
			   d->d_name.name, d->d_name.len, ino);
	if(error)
		goto out;
	r->i_uid = vol->uid;
	r->i_gid = vol->gid;
	r->i_nlink = 1;
	r->i_sb = dir->i_sb;
	si = ntfs_find_attr(ino,vol->at_standard_information,NULL);
	if(si){
		char *attr = si->d.data;
		r->i_atime = ntfs_ntutc2unixutc(NTFS_GETU64(attr+0x18));
		r->i_ctime = ntfs_ntutc2unixutc(NTFS_GETU64(attr));
		r->i_mtime = ntfs_ntutc2unixutc(NTFS_GETU64(attr+8));
	}
	/* It's a directory */
	r->i_op = &ntfs_dir_inode_operations;
	r->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
#ifdef CONFIG_NTFS_RW
	r->i_mode|=S_IWUGO;
#endif
	r->i_mode &= ~vol->umask;	
	
	insert_inode_hash(r);
	d_instantiate(d, r);
	error = 0;
 out:
 	ntfs_debug (DEBUG_DIR1, "mkdir returns %d\n", -error);
	return -error;
}
Exemple #2
0
static int ntfs_create(struct inode* dir, struct dentry *d, int mode)
{
	struct inode *r = 0;
	ntfs_inode *ino = 0;
	ntfs_volume *vol;
	int error = 0;
	ntfs_attribute *si;

	r = new_inode(dir->i_sb);
	if (!r) {
		error = -ENOMEM;
		goto fail;
	}
	ntfs_debug(DEBUG_OTHER, "ntfs_create %s\n", d->d_name.name);
	vol = NTFS_INO2VOL(dir);
	ino = NTFS_LINO2NINO(r);
	error = ntfs_alloc_file(NTFS_LINO2NINO(dir), ino, (char*)d->d_name.name,
				d->d_name.len);
	if (error) {
		ntfs_error("ntfs_alloc_file FAILED: error = %i", error);
		goto fail;
	}
	/* Not doing this one was causing a huge amount of corruption! Now the
	 * bugger bytes the dust! (-8 (AIA) */
	r->i_ino = ino->i_number;
	error = ntfs_update_inode(ino);
	if (error)
		goto fail;
	error = ntfs_update_inode(NTFS_LINO2NINO(dir));
	if (error)
		goto fail;
	r->i_uid = vol->uid;
	r->i_gid = vol->gid;
	/* FIXME: dirty? dev? */
	/* Get the file modification times from the standard information. */
	si = ntfs_find_attr(ino, vol->at_standard_information, NULL);
	if (si) {
		char *attr = si->d.data;
		r->i_atime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 0x18));
		r->i_ctime = ntfs_ntutc2unixutc(NTFS_GETU64(attr));
		r->i_mtime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 8));
	}
	/* It's not a directory */
	r->i_op = &ntfs_inode_operations;
	r->i_fop = &ntfs_file_operations;
	r->i_mode = S_IFREG | S_IRUGO;
#ifdef CONFIG_NTFS_RW
	r->i_mode |= S_IWUGO;
#endif
	r->i_mode &= ~vol->umask;
	insert_inode_hash(r);
	d_instantiate(d, r);
	return 0;
 fail:
	if (r)
		iput(r);
	return error;
}
Exemple #3
0
static int _linux_ntfs_mkdir(struct inode *dir, struct dentry* d, int mode)
{
	int error;
	struct inode *r = 0;
	ntfs_volume *vol;
	ntfs_inode *ino;
	ntfs_attribute *si;

	ntfs_debug (DEBUG_DIR1, "mkdir %s in %x\n", d->d_name.name, dir->i_ino);
	error = -ENAMETOOLONG;
	if (d->d_name.len > /* FIXME: */ 255)
		goto out;
	error = -EIO;
	r = new_inode(dir->i_sb);
	if (!r)
		goto out;
	vol = NTFS_INO2VOL(dir);
	ino = NTFS_LINO2NINO(r);
	error = ntfs_mkdir(NTFS_LINO2NINO(dir), d->d_name.name, d->d_name.len,
			   ino);
	if (error)
		goto out;
	/* Not doing this one was causing a huge amount of corruption! Now the
	 * bugger bytes the dust! (-8 (AIA) */
	r->i_ino = ino->i_number;
	r->i_uid = vol->uid;
	r->i_gid = vol->gid;
	si = ntfs_find_attr(ino, vol->at_standard_information, NULL);
	if (si) {
		char *attr = si->d.data;
		r->i_atime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 0x18));
		r->i_ctime = ntfs_ntutc2unixutc(NTFS_GETU64(attr));
		r->i_mtime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 8));
	}
	/* It's a directory. */
	r->i_op = &ntfs_dir_inode_operations;
	r->i_fop = &ntfs_dir_operations;
	r->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
#ifdef CONFIG_NTFS_RW
	r->i_mode |= S_IWUGO;
#endif
	r->i_mode &= ~vol->umask;	
	
	insert_inode_hash(r);
	d_instantiate(d, r);
	error = 0;
 out:
 	ntfs_debug (DEBUG_DIR1, "mkdir returns %d\n", error);
	return error;
}
Exemple #4
0
/* ntfs_read_inode() is called by the Virtual File System (the kernel layer 
 * that deals with filesystems) when iget is called requesting an inode not
 * already present in the inode table. Typically filesystems have separate
 * inode_operations for directories, files and symlinks. */
static void ntfs_read_inode(struct inode* inode)
{
	ntfs_volume *vol;
	ntfs_inode *ino;
	ntfs_attribute *data;
	ntfs_attribute *si;

	vol = NTFS_INO2VOL(inode);
	inode->i_mode = 0;
	ntfs_debug(DEBUG_OTHER, "ntfs_read_inode 0x%lx\n", inode->i_ino);
	switch (inode->i_ino) {
		/* Those are loaded special files. */
	case FILE_Mft:
		if (!vol->mft_ino || ((vol->ino_flags & 1) == 0))
			goto sys_file_error;
		ntfs_memcpy(&inode->u.ntfs_i, vol->mft_ino, sizeof(ntfs_inode));
		ino = vol->mft_ino;
		vol->mft_ino = &inode->u.ntfs_i;
		vol->ino_flags &= ~1;
		ntfs_free(ino);
		ino = vol->mft_ino;
		ntfs_debug(DEBUG_OTHER, "Opening $MFT!\n");
		break;
	case FILE_MftMirr:
		if (!vol->mftmirr || ((vol->ino_flags & 2) == 0))
			goto sys_file_error;
		ntfs_memcpy(&inode->u.ntfs_i, vol->mftmirr, sizeof(ntfs_inode));
		ino = vol->mftmirr;
		vol->mftmirr = &inode->u.ntfs_i;
		vol->ino_flags &= ~2;
		ntfs_free(ino);
		ino = vol->mftmirr;
		ntfs_debug(DEBUG_OTHER, "Opening $MFTMirr!\n");
		break;
	case FILE_BitMap:
		if (!vol->bitmap || ((vol->ino_flags & 4) == 0))
			goto sys_file_error;
		ntfs_memcpy(&inode->u.ntfs_i, vol->bitmap, sizeof(ntfs_inode));
		ino = vol->bitmap;
		vol->bitmap = &inode->u.ntfs_i;
		vol->ino_flags &= ~4;
		ntfs_free(ino);
		ino = vol->bitmap;
		ntfs_debug(DEBUG_OTHER, "Opening $Bitmap!\n");
		break;
	case FILE_LogFile ... FILE_AttrDef:
	/* No need to log root directory accesses. */
	case FILE_Boot ... FILE_UpCase:
		ntfs_debug(DEBUG_OTHER, "Opening system file %i!\n",
				inode->i_ino);
	default:
		ino = &inode->u.ntfs_i;
		if (!ino || ntfs_init_inode(ino, NTFS_INO2VOL(inode),
								inode->i_ino))
		{
			ntfs_debug(DEBUG_OTHER, "NTFS: Error loading inode "
					"0x%x\n", (unsigned int)inode->i_ino);
			return;
		}
	}
	/* Set uid/gid from mount options */
	inode->i_uid = vol->uid;
	inode->i_gid = vol->gid;
	inode->i_nlink = 1;
	/* Use the size of the data attribute as file size */
	data = ntfs_find_attr(ino, vol->at_data, NULL);
	if (!data)
		inode->i_size = 0;
	else
		inode->i_size = data->size;
	/* Get the file modification times from the standard information. */
	si = ntfs_find_attr(ino, vol->at_standard_information, NULL);
	if (si) {
		char *attr = si->d.data;
		inode->i_atime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 0x18));
		inode->i_ctime = ntfs_ntutc2unixutc(NTFS_GETU64(attr));
		inode->i_mtime = ntfs_ntutc2unixutc(NTFS_GETU64(attr + 8));
	}
	/* If it has an index root, it's a directory. */
	if (ntfs_find_attr(ino, vol->at_index_root, "$I30")) {
		ntfs_attribute *at;
		at = ntfs_find_attr(ino, vol->at_index_allocation, "$I30");
		inode->i_size = at ? at->size : 0;
		inode->i_op = &ntfs_dir_inode_operations;
		inode->i_fop = &ntfs_dir_operations;
		inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
	} else {
		inode->i_op = &ntfs_inode_operations;
		inode->i_fop = &ntfs_file_operations;
		inode->i_mode = S_IFREG | S_IRUGO;
	}
#ifdef CONFIG_NTFS_RW
	if (!data || !(data->flags & (ATTR_IS_COMPRESSED | ATTR_IS_ENCRYPTED)))
		inode->i_mode |= S_IWUGO;
#endif
	inode->i_mode &= ~vol->umask;
	return;
sys_file_error:
	ntfs_error("Critical error. Tried to call ntfs_read_inode() before we "
		"have completed read_super() or VFS error.\n");
	// FIXME: Should we panic() at this stage?
}
Exemple #5
0
static int ntfs_printcb(ntfs_u8 *entry, void *param)
{
	unsigned long inum = NTFS_GETU64(entry) & 0xffffffffffff;
	struct ntfs_filldir *nf = param;
	u32 flags = NTFS_GETU32(entry + 0x48);
	char show_sys_files = 0;
	u8 name_len = NTFS_GETU8(entry + 0x50);
	u8 name_type = NTFS_GETU8(entry + 0x51);
	int err;
	unsigned file_type;

	switch (nf->type) {
	case ngt_dos:
		/* Don't display long names. */
		if (!(name_type & 2))
			return 0;
		break;
	case ngt_nt:
		/* Don't display short-only names. */
		if ((name_type & 3) == 2)
			return 0;
		break;
	case ngt_posix:
		break;
	case ngt_full:
		show_sys_files = 1;
		break;
	default:
		BUG();
	}
	err = ntfs_encodeuni(NTFS_INO2VOL(nf->dir), (ntfs_u16*)(entry + 0x52),
			name_len, &nf->name, &nf->namelen);
	if (err) {
		ntfs_debug(DEBUG_OTHER, __FUNCTION__ "(): Skipping "
				"unrepresentable file.\n");
		err = 0;
		goto err_ret;
	}
	if (!show_sys_files && inum < 0x10UL) {
		ntfs_debug(DEBUG_OTHER, __FUNCTION__ "(): Skipping system "
				"file (%s).\n", nf->name);
		err = 0;
		goto err_ret;
	}
	/* Do not return ".", as this is faked. */
	if (nf->namelen == 1 && nf->name[0] == '.') {
		ntfs_debug(DEBUG_OTHER, __FUNCTION__ "(): Skipping \".\"\n");
		err = 0;
		goto err_ret;
	}
	nf->name[nf->namelen] = 0;
	if (flags & 0x10000000) /* FILE_ATTR_DUP_FILE_NAME_INDEX_PRESENT */
		file_type = DT_DIR;
	else
		file_type = DT_REG;
	ntfs_debug(DEBUG_OTHER, __FUNCTION__ "(): Calling filldir for %s with "
			"len %i, f_pos 0x%Lx, inode %lu, %s.\n",
			nf->name, nf->namelen, (loff_t)(nf->ph << 16) | nf->pl,
			inum, file_type == DT_DIR ? "DT_DIR" : "DT_REG");
	/*
	 * Userspace side of filldir expects an off_t rather than an loff_t.
	 * And it also doesn't like the most significant bit being set as it
	 * then considers the value to be negative. Thus this implementation
	 * limits the number of index records to 32766, which should be plenty.
	 */
	err = nf->filldir(nf->dirent, nf->name, nf->namelen,
			(loff_t)(nf->ph << 16) | nf->pl, inum, file_type);
	if (err)
		nf->ret_code = err;
err_ret:
	nf->namelen = 0;
	ntfs_free(nf->name);
	nf->name = NULL;
	return err;
}
Exemple #6
0
/* ntfs_read_inode is called by the Virtual File System (the kernel layer that
 * deals with filesystems) when iget is called requesting an inode not already
 * present in the inode table. Typically filesystems have separate
 * inode_operations for directories, files and symlinks.
 */
static void ntfs_read_inode(struct inode* inode)
{
	ntfs_volume *vol;
	int can_mmap=0;
	ntfs_inode *ino;
	ntfs_attribute *data;
	ntfs_attribute *si;

	vol=NTFS_INO2VOL(inode);
	inode->i_mode=0;
	ntfs_debug(DEBUG_OTHER, "ntfs_read_inode %x\n",(unsigned)inode->i_ino);

	switch(inode->i_ino)
	{
		/* those are loaded special files */
	case FILE_MFT:
		ntfs_error("Trying to open MFT\n");return;
	default:
		#ifdef NTFS_IN_LINUX_KERNEL
		ino=&inode->u.ntfs_i;
		#else
		/* FIXME: check for ntfs_malloc failure */
		ino=(ntfs_inode*)ntfs_malloc(sizeof(ntfs_inode));
		inode->u.generic_ip=ino;
		#endif
		if(!ino || ntfs_init_inode(ino,
					   NTFS_INO2VOL(inode),inode->i_ino))
		{
			ntfs_debug(DEBUG_OTHER, "NTFS:Error loading inode %x\n",
			       (unsigned int)inode->i_ino);
			return;
		}
	}
	/* Set uid/gid from mount options */
	inode->i_uid=vol->uid;
	inode->i_gid=vol->gid;
	inode->i_nlink=1;
	/* Use the size of the data attribute as file size */
	data = ntfs_find_attr(ino,vol->at_data,NULL);
	if(!data)
	{
		inode->i_size=0;
		can_mmap=0;
	}
	else
	{
		inode->i_size=data->size;
		/* FIXME: once ntfs_get_block is implemented, uncomment the
		 * next line and remove the can_mmap = 0; */
		/* can_mmap=!data->resident && !data->compressed;*/
		can_mmap = 0;
	}
	/* get the file modification times from the standard information */
	si=ntfs_find_attr(ino,vol->at_standard_information,NULL);
	if(si){
		char *attr=si->d.data;
		inode->i_atime=ntfs_ntutc2unixutc(NTFS_GETU64(attr+0x18));
		inode->i_ctime=ntfs_ntutc2unixutc(NTFS_GETU64(attr));
		inode->i_mtime=ntfs_ntutc2unixutc(NTFS_GETU64(attr+8));
	}
	/* if it has an index root, it's a directory */
	if(ntfs_find_attr(ino,vol->at_index_root,"$I30"))
	{
		ntfs_attribute *at;
		at = ntfs_find_attr (ino, vol->at_index_allocation, "$I30");
		inode->i_size = at ? at->size : 0;
	  
		inode->i_op=&ntfs_dir_inode_operations;
		inode->i_fop=&ntfs_dir_operations;
		inode->i_mode=S_IFDIR|S_IRUGO|S_IXUGO;
	}
	else
	{
		/* As long as ntfs_get_block() is just a call to BUG() do not
	 	 * define any [bm]map ops or we get the BUG() whenever someone
		 * runs mc or mpg123 on an ntfs partition!
		 * FIXME: Uncomment the below code when ntfs_get_block is
		 * implemented. */
		/* if (can_mmap) {
			inode->i_op = &ntfs_inode_operations;
			inode->i_fop = &ntfs_file_operations;
			inode->i_mapping->a_ops = &ntfs_aops;
			inode->u.ntfs_i.mmu_private = inode->i_size;
		} else */ {
			inode->i_op=&ntfs_inode_operations_nobmap;
			inode->i_fop=&ntfs_file_operations_nommap;
		}
		inode->i_mode=S_IFREG|S_IRUGO;
	}
#ifdef CONFIG_NTFS_RW
	if(!data || !data->compressed)
		inode->i_mode|=S_IWUGO;
#endif
	inode->i_mode &= ~vol->umask;
}
Exemple #7
0
static int
ntfs_create(struct inode* dir,struct dentry *d,int mode)
{
	struct inode *r=0;
	ntfs_inode *ino=0;
	ntfs_volume *vol;
	int error=0;
	ntfs_attribute *si;

	r=new_inode(dir->i_sb);
	if(!r){
		error=ENOMEM;
		goto fail;
	}

	ntfs_debug(DEBUG_OTHER, "ntfs_create %s\n",d->d_name.name);
	vol=NTFS_INO2VOL(dir);
#ifdef NTFS_IN_LINUX_KERNEL
	ino=NTFS_LINO2NINO(r);
#else
	ino=ntfs_malloc(sizeof(ntfs_inode));
	if(!ino){
		error=ENOMEM;
		goto fail;
	}
	r->u.generic_ip=ino;
#endif
	error=ntfs_alloc_file(NTFS_LINO2NINO(dir),ino,(char*)d->d_name.name,
			       d->d_name.len);
	if(error)goto fail;
	error=ntfs_update_inode(ino);
	if(error)goto fail;
	error=ntfs_update_inode(NTFS_LINO2NINO(dir));
	if(error)goto fail;

	r->i_uid=vol->uid;
	r->i_gid=vol->gid;
	/* FIXME: dirty? dev? */
	/* get the file modification times from the standard information */
	si=ntfs_find_attr(ino,vol->at_standard_information,NULL);
	if(si){
		char *attr=si->d.data;
		r->i_atime=ntfs_ntutc2unixutc(NTFS_GETU64(attr+0x18));
		r->i_ctime=ntfs_ntutc2unixutc(NTFS_GETU64(attr));
		r->i_mtime=ntfs_ntutc2unixutc(NTFS_GETU64(attr+8));
	}
	/* It's not a directory */
	r->i_op=&ntfs_inode_operations_nobmap;
	r->i_fop=&ntfs_file_operations_nommap,
	r->i_mode=S_IFREG|S_IRUGO;
#ifdef CONFIG_NTFS_RW
	r->i_mode|=S_IWUGO;
#endif
	r->i_mode &= ~vol->umask;

	insert_inode_hash(r);
	d_instantiate(d,r);
	return 0;
 fail:
	#ifndef NTFS_IN_LINUX_KERNEL
	if(ino)ntfs_free(ino);
	#endif
	if(r)iput(r);
	return -error;
}
Exemple #8
0
/* ntfs_read_inode is called by the Virtual File System (the kernel layer that
 * deals with filesystems) when iget is called requesting an inode not already
 * present in the inode table. Typically filesystems have separate
 * inode_operations for directories, files and symlinks.
 */
static void ntfs_read_inode(struct inode* inode)
{
	ntfs_volume *vol;
	int can_mmap=0;
	ntfs_inode *ino;
	ntfs_attribute *data;
	ntfs_attribute *si;

	vol=NTFS_INO2VOL(inode);
	inode->i_op=NULL;
	inode->i_mode=0;
	ntfs_debug(DEBUG_OTHER, "ntfs_read_inode %x\n",(unsigned)inode->i_ino);

	switch(inode->i_ino)
	{
		/* those are loaded special files */
	case FILE_MFT:
		ntfs_error("Trying to open MFT\n");return;
	default:
		#ifdef NTFS_IN_LINUX_KERNEL
		ino=&inode->u.ntfs_i;
		#else
		/* FIXME: check for ntfs_malloc failure */
		ino=(ntfs_inode*)ntfs_malloc(sizeof(ntfs_inode));
		inode->u.generic_ip=ino;
		#endif
		if(!ino || ntfs_init_inode(ino,
					   NTFS_INO2VOL(inode),inode->i_ino))
		{
			ntfs_debug(DEBUG_OTHER, "NTFS:Error loading inode %x\n",
			       (unsigned int)inode->i_ino);
			return;
		}
	}
	/* Set uid/gid from mount options */
	inode->i_uid=vol->uid;
	inode->i_gid=vol->gid;
	inode->i_nlink=1;
	/* Use the size of the data attribute as file size */
	data = ntfs_find_attr(ino,vol->at_data,NULL);
	if(!data)
	{
		inode->i_size=0;
		can_mmap=0;
	}
	else
	{
		inode->i_size=data->size;
		can_mmap=!data->resident && !data->compressed;
	}
	/* get the file modification times from the standard information */
	si=ntfs_find_attr(ino,vol->at_standard_information,NULL);
	if(si){
		char *attr=si->d.data;
		inode->i_atime=ntfs_ntutc2unixutc(NTFS_GETU64(attr+0x18));
		inode->i_ctime=ntfs_ntutc2unixutc(NTFS_GETU64(attr));
		inode->i_mtime=ntfs_ntutc2unixutc(NTFS_GETU64(attr+8));
	}
	/* if it has an index root, it's a directory */
	if(ntfs_find_attr(ino,vol->at_index_root,"$I30"))
	{
		ntfs_attribute *at;
		at = ntfs_find_attr (ino, vol->at_index_allocation, "$I30");
		inode->i_size = at ? at->size : 0;
	  
		inode->i_op=&ntfs_dir_inode_operations;
		inode->i_mode=S_IFDIR|S_IRUGO|S_IXUGO;
	}
	else
	{
		inode->i_op=can_mmap ? &ntfs_inode_operations : 
			&ntfs_inode_operations_nobmap;
		inode->i_mode=S_IFREG|S_IRUGO;
	}
#ifdef CONFIG_NTFS_RW
	if(!data || !data->compressed)
		inode->i_mode|=S_IWUGO;
#endif
	inode->i_mode &= ~vol->umask;
}