fsal_internal.h File Reference

#include "fsal.h"
#include <sys/stat.h>
#include "FSAL/common_functions.h"

Go to the source code of this file.

Defines
#define	POSIX_SUPPORTED_ATTRIBUTES
Functions
fsal_status_t	fsal_internal_init_global (fsal_init_info_t *fsal_info, fs_common_initinfo_t *fs_common_info, fs_specific_initinfo_t *fs_specific_info)
void	fsal_increment_nbcall (int function_index, fsal_status_t status)
void	fsal_internal_getstats (fsal_statistics_t *output_stats)
void	TakeTokenFSCall ()
void	ReleaseTokenFSCall ()
fsal_status_t	fsal_internal_appendNameToPath (fsal_path_t *p_path, const fsal_name_t *p_name)
	p_path <- p_path + '/' + p_name
fsal_status_t	fsal_internal_Handle2FidPath (fsal_op_context_t *p_context, fsal_handle_t *p_handle, fsal_path_t *p_fsalpath)
fsal_status_t	fsal_internal_Path2Handle (fsal_op_context_t *p_context, fsal_path_t *p_fsalpath, fsal_handle_t *p_handle)
fsal_status_t	fsal_internal_testAccess (fsal_op_context_t *p_context, fsal_accessflags_t access_type, struct stat *p_buffstat, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_access (fsal_handle_t *p_object_handle, fsal_op_context_t *p_context, fsal_accessflags_t access_type, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_getattrs (fsal_handle_t *p_filehandle, fsal_op_context_t *p_context, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_setattrs (fsal_handle_t *p_filehandle, fsal_op_context_t *p_context, fsal_attrib_list_t *p_attrib_set, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_BuildExportContext (fsal_export_context_t *p_export_context, fsal_path_t *p_export_path, char *fs_specific_options)
fsal_status_t	LUSTREFSAL_create (fsal_handle_t *p_parent_directory_handle, fsal_name_t *p_filename, fsal_op_context_t *p_context, fsal_accessmode_t accessmode, fsal_handle_t *p_object_handle, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_mkdir (fsal_handle_t *p_parent_directory_handle, fsal_name_t *p_dirname, fsal_op_context_t *p_context, fsal_accessmode_t accessmode, fsal_handle_t *p_object_handle, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_link (fsal_handle_t *p_target_handle, fsal_handle_t *p_dir_handle, fsal_name_t *p_link_name, fsal_op_context_t *p_context, fsal_attrib_list_t *p_attributes)
fsal_status_t	LUSTREFSAL_mknode (fsal_handle_t *parentdir_handle, fsal_name_t *p_node_name, fsal_op_context_t *p_context, fsal_accessmode_t accessmode, fsal_nodetype_t nodetype, fsal_dev_t *dev, fsal_handle_t *p_object_handle, fsal_attrib_list_t *node_attributes)
fsal_status_t	LUSTREFSAL_opendir (fsal_handle_t *p_dir_handle, fsal_op_context_t *p_context, fsal_dir_t *p_dir_descriptor, fsal_attrib_list_t *p_dir_attributes)
fsal_status_t	LUSTREFSAL_readdir (fsal_dir_t *p_dir_descriptor, fsal_cookie_t start_position, fsal_attrib_mask_t get_attr_mask, fsal_mdsize_t buffersize, fsal_dirent_t *p_pdirent, fsal_cookie_t *p_end_position, fsal_count_t *p_nb_entries, fsal_boolean_t *p_end_of_dir)
fsal_status_t	LUSTREFSAL_closedir (fsal_dir_t *p_dir_descriptor)
fsal_status_t	LUSTREFSAL_open_by_name (fsal_handle_t *dirhandle, fsal_name_t *filename, fsal_op_context_t *p_context, fsal_openflags_t openflags, fsal_file_t *file_descriptor, fsal_attrib_list_t *file_attributes)
fsal_status_t	LUSTREFSAL_open (fsal_handle_t *p_filehandle, fsal_op_context_t *p_context, fsal_openflags_t openflags, fsal_file_t *p_file_descriptor, fsal_attrib_list_t *p_file_attributes)
fsal_status_t	LUSTREFSAL_read (fsal_file_t *p_file_descriptor, fsal_seek_t *p_seek_descriptor, fsal_size_t buffer_size, caddr_t buffer, fsal_size_t *p_read_amount, fsal_boolean_t *p_end_of_file)
fsal_status_t	LUSTREFSAL_write (fsal_file_t *p_file_descriptor, fsal_op_context_t *p_context, fsal_seek_t *p_seek_descriptor, fsal_size_t buffer_size, caddr_t buffer, fsal_size_t *p_write_amount)
fsal_status_t	LUSTREFSAL_commit (fsal_file_t *p_file_descriptor, fsal_off_t offset, fsal_size_t size)
fsal_status_t	LUSTREFSAL_close (fsal_file_t *p_file_descriptor)
fsal_status_t	LUSTREFSAL_dynamic_fsinfo (fsal_handle_t *p_filehandle, fsal_op_context_t *p_context, fsal_dynamicfsinfo_t *p_dynamicinfo)
fsal_status_t	LUSTREFSAL_Init (fsal_parameter_t *init_info)
fsal_status_t	LUSTREFSAL_test_access (fsal_op_context_t *p_context, fsal_accessflags_t access_type, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_lookup (fsal_handle_t *p_parent_directory_handle, fsal_name_t *p_filename, fsal_op_context_t *p_context, fsal_handle_t *p_object_handle, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_lookupPath (fsal_path_t *p_path, fsal_op_context_t *p_context, fsal_handle_t *object_handle, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_lookupJunction (fsal_handle_t *p_junction_handle, fsal_op_context_t *p_context, fsal_handle_t *p_fsoot_handle, fsal_attrib_list_t *p_fsroot_attributes)
fsal_status_t	LUSTREFSAL_rcp (fsal_handle_t *filehandle, fsal_op_context_t *p_context, fsal_path_t *p_local_path, fsal_rcpflag_t transfer_opt)
fsal_status_t	LUSTREFSAL_rename (fsal_handle_t *p_old_parentdir_handle, fsal_name_t *p_old_name, fsal_handle_t *p_new_parentdir_handle, fsal_name_t *p_new_name, fsal_op_context_t *p_context, fsal_attrib_list_t *p_src_dir_attributes, fsal_attrib_list_t *p_tgt_dir_attributes)
void	LUSTREFSAL_get_stats (fsal_statistics_t *stats, fsal_boolean_t reset)
fsal_status_t	LUSTREFSAL_readlink (fsal_handle_t *p_linkhandle, fsal_op_context_t *p_context, fsal_path_t *p_link_content, fsal_attrib_list_t *p_link_attributes)
fsal_status_t	LUSTREFSAL_symlink (fsal_handle_t *p_parent_directory_handle, fsal_name_t *p_linkname, fsal_path_t *p_linkcontent, fsal_op_context_t *p_context, fsal_accessmode_t accessmode, fsal_handle_t *p_link_handle, fsal_attrib_list_t *p_link_attributes)
int	LUSTREFSAL_handlecmp (fsal_handle_t *handle1, fsal_handle_t *handle2, fsal_status_t *status)
unsigned int	LUSTREFSAL_Handle_to_HashIndex (fsal_handle_t *p_handle, unsigned int cookie, unsigned int alphabet_len, unsigned int index_size)
unsigned int	LUSTREFSAL_Handle_to_RBTIndex (fsal_handle_t *p_handle, unsigned int cookie)
fsal_status_t	LUSTREFSAL_DigestHandle (fsal_export_context_t *exp_context, fsal_digesttype_t output_type, fsal_handle_t *in_fsal_handle, struct fsal_handle_desc *fh_desc)
fsal_status_t	LUSTREFSAL_ExpandHandle (fsal_export_context_t *p_expcontext, fsal_digesttype_t in_type, struct fsal_handle_desc *fh_desc)
fsal_status_t	LUSTREFSAL_SetDefault_FS_specific_parameter (fsal_parameter_t *out_parameter)
fsal_status_t	LUSTREFSAL_load_FS_specific_parameter_from_conf (config_file_t in_config, fsal_parameter_t *out_parameter)
fsal_status_t	LUSTREFSAL_truncate (fsal_handle_t *p_filehandle, fsal_op_context_t *p_context, fsal_size_t length, fsal_file_t *file_descriptor, fsal_attrib_list_t *p_object_attributes)
fsal_status_t	LUSTREFSAL_unlink (fsal_handle_t *p_parent_directory_handle, fsal_name_t *p_object_name, fsal_op_context_t *p_context, fsal_attrib_list_t *p_parent_directory_attributes)
char *	LUSTREFSAL_GetFSName ()
fsal_status_t	LUSTREFSAL_GetXAttrAttrs (fsal_handle_t *p_objecthandle, fsal_op_context_t *p_context, unsigned int xattr_id, fsal_attrib_list_t *p_attrs)
fsal_status_t	LUSTREFSAL_ListXAttrs (fsal_handle_t *p_objecthandle, unsigned int cookie, fsal_op_context_t *p_context, fsal_xattrent_t *xattrs_tab, unsigned int xattrs_tabsize, unsigned int *p_nb_returned, int *end_of_list)
fsal_status_t	LUSTREFSAL_GetXAttrValueById (fsal_handle_t *p_objecthandle, unsigned int xattr_id, fsal_op_context_t *p_context, caddr_t buffer_addr, size_t buffer_size, size_t *p_output_size)
fsal_status_t	LUSTREFSAL_GetXAttrIdByName (fsal_handle_t *p_objecthandle, const fsal_name_t *xattr_name, fsal_op_context_t *p_context, unsigned int *pxattr_id)
fsal_status_t	LUSTREFSAL_GetXAttrValueByName (fsal_handle_t *p_objecthandle, const fsal_name_t *xattr_name, fsal_op_context_t *p_context, caddr_t buffer_addr, size_t buffer_size, size_t *p_output_size)
fsal_status_t	LUSTREFSAL_SetXAttrValue (fsal_handle_t *p_objecthandle, const fsal_name_t *xattr_name, fsal_op_context_t *p_context, caddr_t buffer_addr, size_t buffer_size, int create)
fsal_status_t	LUSTREFSAL_SetXAttrValueById (fsal_handle_t *p_objecthandle, unsigned int xattr_id, fsal_op_context_t *p_context, caddr_t buffer_addr, size_t buffer_size)
fsal_status_t	LUSTREFSAL_RemoveXAttrById (fsal_handle_t *p_objecthandle, fsal_op_context_t *p_context, unsigned int xattr_id)
fsal_status_t	LUSTREFSAL_RemoveXAttrByName (fsal_handle_t *p_objecthandle, fsal_op_context_t *p_context, const fsal_name_t *xattr_name)
int	LUSTREFSAL_GetXattrOffsetSetable (void)
fsal_status_t	LUSTREFSAL_lock_op (fsal_file_t *p_file_descriptor, fsal_handle_t *p_filehandle, fsal_op_context_t *p_context, void *p_owner, fsal_lock_op_t lock_op, fsal_lock_param_t request_lock, fsal_lock_param_t *conflicting_lock)
fsal_status_t	LUSTREFSAL_set_quota (fsal_path_t *pfsal_path, int quota_type, fsal_uid_t fsal_uid, fsal_quota_t *pquota, fsal_quota_t *presquota)
fsal_status_t	LUSTREFSAL_get_quota (fsal_path_t *pfsal_path, int quota_type, fsal_uid_t fsal_uid, fsal_quota_t *pquota)
fsal_status_t	LUSTREFSAL_check_quota (char *path, fsal_quota_type_t quota_type, fsal_uid_t fsal_uid)
unsigned int	LUSTREFSAL_GetFileno (fsal_file_t *pfile)
Variables
fsal_staticfsinfo_t	global_fs_info

---

Define Documentation

#define POSIX_SUPPORTED_ATTRIBUTES

Value:

(                                       \
          FSAL_ATTR_SUPPATTR | FSAL_ATTR_TYPE     | FSAL_ATTR_SIZE      | \
          FSAL_ATTR_FSID     |  FSAL_ATTR_FILEID  | \
          FSAL_ATTR_MODE     | FSAL_ATTR_NUMLINKS | FSAL_ATTR_OWNER     | \
          FSAL_ATTR_GROUP    | FSAL_ATTR_ATIME    | FSAL_ATTR_RAWDEV    | \
          FSAL_ATTR_CTIME    | FSAL_ATTR_MTIME    | FSAL_ATTR_SPACEUSED | \
          FSAL_ATTR_CHGTIME  )

Definition at line 21 of file FSAL_LUSTRE/fsal_internal.h.

---

Function Documentation

void fsal_increment_nbcall	(	int	function_index,
		fsal_status_t	status
	)

Increments the number of calls for a function.

fsal_increment_nbcall: Updates fonction call statistics.

Parameters:

function_index	(input): Index of the function whom number of call is to be incremented.
status	(input): Status the function returned.

Returns:

Nothing.

Definition at line 135 of file FSAL_CEPH/fsal_internal.c.

fsal_status_t fsal_internal_appendNameToPath	(	fsal_path_t *	p_path,
		const fsal_name_t *	p_name
	)

p_path <- p_path + '/' + p_name

Append a fsal_name to an fsal_path to have the full path of a file from its name and its parent path

Parameters:

p_path
p_name

Returns:

Definition at line 361 of file FSAL_LUSTRE/fsal_internal.c.

void fsal_internal_getstats

(

fsal_statistics_t *

output_stats

)

Retrieves current thread statistics.

fsal_internal_getstats: (For internal use in the FSAL). Retrieve call statistics for current thread.

Parameters:

output_stats

(output): Pointer to the call statistics structure.

Returns:

Nothing.

Definition at line 211 of file FSAL_CEPH/fsal_internal.c.

fsal_status_t fsal_internal_Handle2FidPath	(	fsal_op_context_t *	context,
		fsal_handle_t *	p_handle,
		fsal_path_t *	p_fsalpath
	)

Build .lustre/fid path associated to a handle.

Definition at line 397 of file FSAL_LUSTRE/fsal_internal.c.

fsal_status_t fsal_internal_init_global	(	fsal_init_info_t *	fsal_info,
		fs_common_initinfo_t *	fs_common_info,
		fs_specific_initinfo_t *	fs_specific_info
	)

This function initializes shared variables of the FSAL.

Definition at line 490 of file FSAL_CEPH/fsal_internal.c.

fsal_status_t fsal_internal_Path2Handle	(	fsal_op_context_t *	p_context,
		fsal_path_t *	p_fsalpath,
		fsal_handle_t *	handle
	)

Get the handle for a path (posix or fid path)

Definition at line 429 of file FSAL_LUSTRE/fsal_internal.c.

fsal_status_t fsal_internal_testAccess	(	fsal_op_context_t *	p_context,
		fsal_accessflags_t	access_type,
		struct stat *	p_buffstat,
		fsal_attrib_list_t *	p_object_attributes
	)

test the access to a file from its POSIX attributes (struct stat) OR its FSAL attributes (fsal_attrib_list_t).

Definition at line 345 of file FSAL_CEPH/fsal_internal.c.

fsal_status_t LUSTREFSAL_access	(	fsal_handle_t *	p_object_handle,
		fsal_op_context_t *	p_context,
		fsal_accessflags_t	access_type,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_access : Tests whether the user or entity identified by its cred can access the object identified by object_handle, as indicated by the access_type parameters.

Parameters:

object_handle	(input): The handle of the object to test permissions on.
cred	(input): Authentication context for the operation (user,...).
access_type	(input): Indicates the permissions to test. This is an inclusive OR of the permissions to be checked for the user identified by cred. Permissions constants are : FSAL_R_OK : test for read permission FSAL_W_OK : test for write permission FSAL_X_OK : test for exec permission FSAL_F_OK : test for file existence
object_attributes	(optional input/output): The post operation attributes for the object. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 53 of file FSAL_LUSTRE/fsal_access.c.

fsal_status_t LUSTREFSAL_check_quota	(	char *	path,
		fsal_quota_type_t	quota_type,
		fsal_uid_t	fsal_uid
	)

FSAL_check_quota : checks if quotas allow a user to do an operation

Parameters:

pfsal_path	path to the filesystem whose quota are requested
quota_type	type of quota to be checked (inodes or blocks
fsal_uid	uid for the user whose quota are requested

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 63 of file FSAL_LUSTRE/fsal_quota.c.

fsal_status_t LUSTREFSAL_close

(

fsal_file_t *

pfile_desc

)

FSAL_close: Free the resources allocated by the FSAL_open call.

Parameters:

file_descriptor

(input): The file descriptor returned by FSAL_open.

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• Another error code if an error occured during this call.

Definition at line 584 of file FSAL_LUSTRE/fsal_fileop.c.

fsal_status_t LUSTREFSAL_closedir

(

fsal_dir_t *

p_dir_descriptor

)

FSAL_closedir : Free the resources allocated for reading directory entries.

Parameters:

dir_descriptor

(input): Pointer to a directory descriptor filled by FSAL_opendir.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 286 of file FSAL_LUSTRE/fsal_dirs.c.

fsal_status_t LUSTREFSAL_commit	(	fsal_file_t *	pfile_desc,
		fsal_off_t	offset,
		fsal_size_t	length
	)

FSAL_commit: This function is used for processing stable writes and COMMIT requests. Calling this function makes sure the changes to a specific file are written to disk rather than kept in memory.

Parameters:

file_descriptor	(input): The file descriptor returned by FSAL_open.
offset,:	The starting offset for the portion of file to be synced
length,:	The length for the portion of file to be synced.

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• Another error code if an error occured during this call.

Definition at line 640 of file FSAL_LUSTRE/fsal_fileop.c.

fsal_status_t LUSTREFSAL_create	(	fsal_handle_t *	p_parent_directory_handle,
		fsal_name_t *	p_filename,
		fsal_op_context_t *	p_context,
		fsal_accessmode_t	accessmode,
		fsal_handle_t *	p_object_handle,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_create: Create a regular file.

Parameters:

parent_directory_handle	(input): Handle of the parent directory where the file is to be created.
p_filename	(input): Pointer to the name of the file to be created.
cred	(input): Authentication context for the operation (user,...).
accessmode	(input): Mode for the file to be created. (the umask defined into the FSAL configuration file will be applied on it).
object_handle	(output): Pointer to the handle of the created file.
object_attributes	(optional input/output): The attributes of the created file. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occurred.

Definition at line 52 of file FSAL_LUSTRE/fsal_create.c.

fsal_status_t LUSTREFSAL_DigestHandle	(	fsal_export_context_t *	exp_context,
		fsal_digesttype_t	output_type,
		fsal_handle_t *	in_fsal_handle,
		struct fsal_handle_desc *	fh_desc
	)

FSAL_DigestHandle : Convert an lustrefsal_handle_t to a buffer to be included into NFS handles, or another digest.

Parameters:

output_type	(input): Indicates the type of digest to do.
in_fsal_handle	(input): The handle to be converted to digest.
out_buff	(output): The buffer where the digest is to be stored.

Returns:

The major code is ERR_FSAL_NO_ERROR is no error occured. Else, it is a non null value.

Definition at line 137 of file FSAL_LUSTRE/fsal_tools.c.

fsal_status_t LUSTREFSAL_dynamic_fsinfo	(	fsal_handle_t *	p_filehandle,
		fsal_op_context_t *	p_context,
		fsal_dynamicfsinfo_t *	p_dynamicinfo
	)

FSAL_dynamic_fsinfo: Return dynamic filesystem info such as used size, free size, number of objects...

Parameters:

filehandle	(input): Handle of an object in the filesystem whom info is to be retrieved.
cred	(input): Authentication context for the operation (user,...).
dynamicinfo	(output): Pointer to the static info of the filesystem.

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• ERR_FSAL_FAULT: NULL pointer passed as input parameter.
• ERR_FSAL_SERVERFAULT: Unexpected error.

Definition at line 41 of file FSAL_LUSTRE/fsal_fsinfo.c.

fsal_status_t LUSTREFSAL_ExpandHandle	(	fsal_export_context_t *	pexpcontext,
		fsal_digesttype_t	in_type,
		struct fsal_handle_desc *	fh_desc
	)

FSAL_ExpandHandle : Convert a buffer extracted from NFS handles to an FSAL handle.

Parameters:

in_type	(input): Indicates the type of digest to be expanded.
in_buff	(input): Pointer to the digest to be expanded.
out_fsal_handle	(output): The handle built from digest.

Returns:

The major code is ERR_FSAL_NO_ERROR is no error occured. Else, it is a non null value.

Definition at line 218 of file FSAL_LUSTRE/fsal_tools.c.

fsal_status_t LUSTREFSAL_get_quota	(	fsal_path_t *	pfsal_path,
		int	quota_type,
		fsal_uid_t	fsal_uid,
		fsal_quota_t *	pquota
	)

FSAL_get_quota : Gets the quota for a given path.

Parameters:

pfsal_path	path to the filesystem whose quota are requested
quota_type	the kind of requested quota (user or group)
fsal_uid	uid for the user whose quota are requested
pquota	(input): Parameter to the structure containing the requested quotas

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 195 of file FSAL_LUSTRE/fsal_quota.c.

void LUSTREFSAL_get_stats	(	fsal_statistics_t *	stats,
		fsal_boolean_t	reset
	)

FSAL_get_stats: Retrieve call statistics for current thread.

Parameters:

stats	(output): Pointer to the call statistics structure.
reset	(input): Boolean that indicates if the stats must be reset.

Returns:

Nothing.

Definition at line 33 of file FSAL_LUSTRE/fsal_stats.c.

fsal_status_t LUSTREFSAL_getattrs	(	fsal_handle_t *	p_filehandle,
		fsal_op_context_t *	p_context,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_getattrs: Get attributes for the object specified by its filehandle.

Parameters:

filehandle	(input): The handle of the object to get parameters.
cred	(input): Authentication context for the operation (user,...).
object_attributes	(mandatory input/output): The retrieved attributes for the object. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains).

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 44 of file FSAL_LUSTRE/fsal_attrs.c.

unsigned int LUSTREFSAL_GetFileno

(

fsal_file_t *

pfile

)

Definition at line 616 of file FSAL_LUSTRE/fsal_fileop.c.

char* LUSTREFSAL_GetFSName

(

)

Definition at line 26 of file FSAL_LUSTRE/fsal_tools.c.

fsal_status_t LUSTREFSAL_GetXAttrAttrs	(	fsal_handle_t *	p_objecthandle,
		fsal_op_context_t *	p_context,
		unsigned int	xattr_id,
		fsal_attrib_list_t *	p_attrs
	)

Get the attributes of an extended attribute from its index.

Parameters:

p_objecthandle	Handle of the object you want to get attribute for.
p_context	pointer to the current security context.
xattr_cookie	xattr's cookie (as returned by listxattrs).
p_attrs	xattr's attributes.

Parameters:

p_attrs

IN/OUT xattr attributes (if supported)

Definition at line 526 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_GetXAttrIdByName	(	fsal_handle_t *	p_objecthandle,
		const fsal_name_t *	xattr_name,
		fsal_op_context_t *	p_context,
		unsigned int *	pxattr_id
	)

* Get the index of an xattr based on its name *

Parameters:

p_objecthandle	Handle of the object you want to get attribute for.
xattr_name	the name of the attribute to be read.
pxattr_id	found xattr_id

Returns:

ERR_FSAL_NO_ERROR if xattr_name exists, ERR_FSAL_NOENT otherwise

Definition at line 966 of file FSAL_LUSTRE/fsal_xattrs.c.

int LUSTREFSAL_GetXattrOffsetSetable

(

void

)

Definition at line 1235 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_GetXAttrValueById	(	fsal_handle_t *	p_objecthandle,
		unsigned int	xattr_id,
		fsal_op_context_t *	p_context,
		caddr_t	buffer_addr,
		size_t	buffer_size,
		size_t *	p_output_size
	)

Get the value of an extended attribute from its index.

Parameters:

p_objecthandle	Handle of the object you want to get attribute for.
xattr_name	the name of the attribute to be read.
p_context	pointer to the current security context.
buffer_addr	address of the buffer where the xattr value is to be stored.
buffer_size	size of the buffer where the xattr value is to be stored.
p_output_size	size of the data actually stored into the buffer.

Definition at line 889 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_GetXAttrValueByName	(	fsal_handle_t *	p_objecthandle,
		const fsal_name_t *	xattr_name,
		fsal_op_context_t *	p_context,
		caddr_t	buffer_addr,
		size_t	buffer_size,
		size_t *	p_output_size
	)

Get the value of an extended attribute from its name.

Parameters:

p_objecthandle	Handle of the object you want to get attribute for.
xattr_name	the name of the attribute to be read.
p_context	pointer to the current security context.
buffer_addr	address of the buffer where the xattr value is to be stored.
buffer_size	size of the buffer where the xattr value is to be stored.
p_output_size	size of the data actually stored into the buffer.

Definition at line 1029 of file FSAL_LUSTRE/fsal_xattrs.c.

unsigned int LUSTREFSAL_Handle_to_HashIndex	(	fsal_handle_t *	handle,
		unsigned int	cookie,
		unsigned int	alphabet_len,
		unsigned int	index_size
	)

FSAL_Handle_to_HashIndex This function is used for hashing a FSAL handle in order to dispatch entries into the hash table array.

Parameters:

p_handle	The handle to be hashed
cookie	Makes it possible to have different hash value for the same handle, when cookie changes.
alphabet_len	Parameter for polynomial hashing algorithm
index_size	The range of hash value will be [0..index_size-1]

Returns:

The hash value

Definition at line 81 of file FSAL_LUSTRE/fsal_tools.c.

unsigned int LUSTREFSAL_Handle_to_RBTIndex	(	fsal_handle_t *	p_handle,
		unsigned int	cookie
	)

Definition at line 108 of file FSAL_LUSTRE/fsal_tools.c.

int LUSTREFSAL_handlecmp	(	fsal_handle_t *	handle_1,
		fsal_handle_t *	handle_2,
		fsal_status_t *	status
	)

FSAL_handlecmp: Compare 2 handles.

Parameters:

handle1	(input): The first handle to be compared.
handle2	(input): The second handle to be compared.
status	(output): The status of the compare operation.

Returns:

- 0 if handles are the same.

• A non null value else.
• Segfault if status is a NULL pointer.

Definition at line 47 of file FSAL_LUSTRE/fsal_tools.c.

fsal_status_t LUSTREFSAL_Init

(

fsal_parameter_t *

init_info

)

FSAL_Init : Initializes the FileSystem Abstraction Layer.

Parameters:

init_info

(input, fsal_parameter_t *) : Pointer to a structure that contains all initialization parameters for the FSAL. Specifically, it contains settings about the filesystem on which the FSAL is based, security settings, logging policy and outputs, and other general FSAL options.

Returns:

Major error codes : ERR_FSAL_NO_ERROR (initialisation OK) ERR_FSAL_FAULT (init_info pointer is null) ERR_FSAL_SERVERFAULT (misc FSAL error) ERR_FSAL_ALREADY_INIT (The FS is already initialized) ERR_FSAL_BAD_INIT (FS specific init error, minor error code gives the reason for this error.) ERR_FSAL_SEC_INIT (Security context init error).

Definition at line 42 of file FSAL_LUSTRE/fsal_init.c.

fsal_status_t LUSTREFSAL_link	(	fsal_handle_t *	p_target_handle,
		fsal_handle_t *	p_dir_handle,
		fsal_name_t *	p_link_name,
		fsal_op_context_t *	p_context,
		fsal_attrib_list_t *	p_attributes
	)

FSAL_link: Create a hardlink.

Parameters:

target_handle	(input): Handle of the target object.
dir_handle	(input): Pointer to the directory handle where the hardlink is to be created.
p_link_name	(input): Pointer to the name of the hardlink to be created.
cred	(input): Authentication context for the operation (user,...).
accessmode	(input): Mode for the directory to be created. (the umask defined into the FSAL configuration file will be applied on it).
attributes	(optionnal input/output): The post_operation attributes of the linked object. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 350 of file FSAL_LUSTRE/fsal_create.c.

fsal_status_t LUSTREFSAL_ListXAttrs	(	fsal_handle_t *	p_objecthandle,
		unsigned int	argcookie,
		fsal_op_context_t *	p_context,
		fsal_xattrent_t *	xattrs_tab,
		unsigned int	xattrs_tabsize,
		unsigned int *	p_nb_returned,
		int *	end_of_list
	)

Retrieves the list of extended attributes for an object in the filesystem.

Parameters:

p_objecthandle	Handle of the object we want to get extended attributes.
cookie	index of the next entry to be returned.
p_context	pointer to the current security context.
xattrs_tab	a table for storing extended attributes list to.
xattrs_tabsize	the maximum number of xattr entries that xattrs_tab can contain.
p_nb_returned	the number of xattr entries actually stored in xattrs_tab.
end_of_list	this boolean indicates that the end of xattrs list has been reached.

Definition at line 588 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_load_FS_specific_parameter_from_conf	(	config_file_t	in_config,
		fsal_parameter_t *	out_parameter
	)

FSAL_load_FSAL_parameter_from_conf, FSAL_load_FS_common_parameter_from_conf, FSAL_load_FS_specific_parameter_from_conf:

Those functions initialize the FSAL init parameter structure from a configuration structure.

Parameters:

in_config	(input): Structure that represents the parsed configuration file.
out_parameter	(ouput) FSAL initialization structure filled according to the configuration file given as parameter.

Returns:

ERR_FSAL_NO_ERROR (no error) , ERR_FSAL_NOENT (missing a mandatory stanza in config file), ERR_FSAL_INVAL (invalid parameter), ERR_FSAL_SERVERFAULT (unexpected error) ERR_FSAL_FAULT (null pointer given as parameter),

Definition at line 315 of file FSAL_LUSTRE/fsal_tools.c.

fsal_status_t LUSTREFSAL_lock_op	(	fsal_file_t *	p_file_descriptor,
		fsal_handle_t *	p_filehandle,
		fsal_op_context_t *	p_context,
		void *	p_owner,
		fsal_lock_op_t	lock_op,
		fsal_lock_param_t	request_lock,
		fsal_lock_param_t *	conflicting_lock
	)

LUSTREFSAL_lock_op: Lock/unlock/test an owner independent (anonymous) lock for a region in a file.

Parameters:

p_file_descriptor	(input): File descriptor of the file to lock.
p_filehandle	(input): File handle of the file to lock.
p_context	(input): Context
p_owner	(input): Owner for the requested lock
lock_op	(input): Can be either FSAL_OP_LOCKT, FSAL_OP_LOCK, FSAL_OP_UNLOCK. The operations are test if a file region is locked, lock a file region, unlock a file region.
lock_type	(input): Can be either FSAL_LOCK_R, FSAL_LOCK_W. Either a read lock or write lock.
lock_start	(input): Start of lock region measured as offset of bytes from start of file.
lock_length	(input): Number of bytes to lock.

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• ERR_FSAL_FAULT: One of the in put parameters is NULL.
• ERR_FSAL_PERM: lock_op was FSAL_OP_LOCKT and the result was that the operation would not be possible.

Definition at line 62 of file FSAL_LUSTRE/fsal_lock.c.

fsal_status_t LUSTREFSAL_lookup	(	fsal_handle_t *	p_parent_directory_handle,
		fsal_name_t *	p_filename,
		fsal_op_context_t *	p_context,
		fsal_handle_t *	p_object_handle,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_lookup : Looks up for an object into a directory.

Note : if parent handle and filename are NULL, this retrieves root's handle.

Parameters:

parent_directory_handle	(input) Handle of the parent directory to search the object in.
filename	(input) The name of the object to find.
p_context	(input) Authentication context for the operation (user,...).
object_handle	(output) The handle of the object corresponding to filename.
object_attributes	(optional input/output) Pointer to the attributes of the object we found. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). It can be NULL (increases performances).

Returns:

- ERR_FSAL_NO_ERROR, if no error.

• Another error code else.

Definition at line 49 of file FSAL_LUSTRE/fsal_lookup.c.

fsal_status_t LUSTREFSAL_lookupJunction	(	fsal_handle_t *	p_junction_handle,
		fsal_op_context_t *	p_context,
		fsal_handle_t *	p_fsoot_handle,
		fsal_attrib_list_t *	p_fsroot_attributes
	)

FSAL_lookupJunction : Get the fileset root for a junction.

Parameters:

p_junction_handle	(input) Handle of the junction to be looked up.
p_context	(input) Authentication context for the operation (user,...).
p_fsroot_handle	(output) The handle of root directory of the fileset.
p_fsroot_attributes	(optional input/output) Pointer to the attributes of the root directory for the fileset. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). It can be NULL (increases performances).

Returns:

- ERR_FSAL_NO_ERROR, if no error.

• Another error code else.

Definition at line 262 of file FSAL_LUSTRE/fsal_lookup.c.

fsal_status_t LUSTREFSAL_lookupPath	(	fsal_path_t *	p_path,
		fsal_op_context_t *	p_context,
		fsal_handle_t *	object_handle,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_lookupPath : Looks up for an object into the namespace.

Note : if path equals "/", this retrieves root's handle.

Parameters:

path	(input) The path of the object to find.
p_context	(input) Authentication context for the operation (user,...).
object_handle	(output) The handle of the object corresponding to filename.
object_attributes	(optional input/output) Pointer to the attributes of the object we found. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). It can be NULL (increases performances).

Definition at line 198 of file FSAL_LUSTRE/fsal_lookup.c.

fsal_status_t LUSTREFSAL_mkdir	(	fsal_handle_t *	p_parent_directory_handle,
		fsal_name_t *	p_dirname,
		fsal_op_context_t *	p_context,
		fsal_accessmode_t	accessmode,
		fsal_handle_t *	p_object_handle,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_mkdir: Create a directory.

Parameters:

parent_directory_handle	(input): Handle of the parent directory where the subdirectory is to be created.
p_dirname	(input): Pointer to the name of the directory to be created.
cred	(input): Authentication context for the operation (user,...).
accessmode	(input): Mode for the directory to be created. (the umask defined into the FSAL configuration file will be applied on it).
object_handle	(output): Pointer to the handle of the created directory.
object_attributes	(optionnal input/output): The attributes of the created directory. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 208 of file FSAL_LUSTRE/fsal_create.c.

fsal_status_t LUSTREFSAL_mknode	(	fsal_handle_t *	parentdir_handle,
		fsal_name_t *	p_node_name,
		fsal_op_context_t *	p_context,
		fsal_accessmode_t	accessmode,
		fsal_nodetype_t	nodetype,
		fsal_dev_t *	dev,
		fsal_handle_t *	p_object_handle,
		fsal_attrib_list_t *	node_attributes
	)

FSAL_mknode: Create a special object in the filesystem. Not supported upon HPSS.

Returns:

ERR_FSAL_NOTSUPP.

Definition at line 447 of file FSAL_LUSTRE/fsal_create.c.

fsal_status_t LUSTREFSAL_open	(	fsal_handle_t *	p_filehandle,
		fsal_op_context_t *	p_context,
		fsal_openflags_t	openflags,
		fsal_file_t *	file_desc,
		fsal_attrib_list_t *	p_file_attributes
	)

FSAL_open: Open a regular file for reading/writing its data content.

Parameters:

filehandle	(input): Handle of the file to be read/modified.
cred	(input): Authentication context for the operation (user,...).
openflags	(input): Flags that indicates behavior for file opening and access. This is an inclusive OR of the following values ( such of them are not compatible) : FSAL_O_RDONLY: opening file for reading only. FSAL_O_RDWR: opening file for reading and writing. FSAL_O_WRONLY: opening file for writting only. FSAL_O_APPEND: always write at the end of the file. FSAL_O_TRUNC: truncate the file to 0 on opening.
file_descriptor	(output): The file descriptor to be used for FSAL_read/write operations.
file_attributes	(optionnal input/output): Post operation attributes. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains).

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• Another error code if an error occured during this call.

Definition at line 118 of file FSAL_LUSTRE/fsal_fileop.c.

fsal_status_t LUSTREFSAL_open_by_name	(	fsal_handle_t *	dirhandle,
		fsal_name_t *	filename,
		fsal_op_context_t *	p_context,
		fsal_openflags_t	openflags,
		fsal_file_t *	file_descriptor,
		fsal_attrib_list_t *	file_attributes
	)

FSAL_open_byname: Open a regular file for reading/writing its data content.

Parameters:

dirhandle	(input): Handle of the directory that contain the file to be read/modified.
filename	(input): Name of the file to be read/modified
cred	(input): Authentication context for the operation (user,...).
openflags	(input): Flags that indicates behavior for file opening and access. This is an inclusive OR of the following values ( such of them are not compatible) : FSAL_O_RDONLY: opening file for reading only. FSAL_O_RDWR: opening file for reading and writing. FSAL_O_WRONLY: opening file for writting only. FSAL_O_APPEND: always write at the end of the file. FSAL_O_TRUNC: truncate the file to 0 on opening.
file_descriptor	(output): The file descriptor to be used for FSAL_read/write operations.
file_attributes	(optionnal input/output): Post operation attributes. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains).

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR (no error)
• ERR_FSAL_ACCESS (user doesn't have the permissions for opening the file)
• ERR_FSAL_STALE (filehandle does not address an existing object)
• ERR_FSAL_INVAL (filehandle does not address a regular file, or open flags are conflicting)
• ERR_FSAL_FAULT (a NULL pointer was passed as mandatory argument)
• Other error codes can be returned : ERR_FSAL_IO, ...

Definition at line 65 of file FSAL_LUSTRE/fsal_fileop.c.

fsal_status_t LUSTREFSAL_opendir	(	fsal_handle_t *	p_dir_handle,
		fsal_op_context_t *	p_context,
		fsal_dir_t *	dir_desc,
		fsal_attrib_list_t *	p_dir_attributes
	)

FSAL_opendir : Opens a directory for reading its content.

Parameters:

dir_handle	(input) the handle of the directory to be opened.
cred	(input) Permission context for the operation (user,...).
dir_descriptor	(output) pointer to an allocated structure that will receive directory stream informations, on successfull completion.
dir_attributes	(optional output) On successfull completion,the structure pointed by dir_attributes receives the new directory attributes. May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 44 of file FSAL_LUSTRE/fsal_dirs.c.

fsal_status_t LUSTREFSAL_rcp	(	fsal_handle_t *	filehandle,
		fsal_op_context_t *	p_context,
		fsal_path_t *	p_local_path,
		fsal_rcpflag_t	transfer_opt
	)

FSAL_rcp: Copy an HPSS file to/from a local filesystem.

Parameters:

filehandle	(input): Handle of the HPSS file to be copied.
cred	(input): Authentication context for the operation (user,...).
p_local_path	(input): Path of the file in the local filesystem.
transfer_opt	(input): Flags that indicate transfer direction and options. This consists of an inclusive OR between the following values : FSAL_RCP_FS_TO_LOCAL: Copy the file from the filesystem to a local path. FSAL_RCP_LOCAL_TO_FS: Copy the file from local path to the filesystem. FSAL_RCP_LOCAL_CREAT: Create the target local file if it doesn't exist. FSAL_RCP_LOCAL_EXCL: Produce an error if the target local file already exists.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 52 of file FSAL_LUSTRE/fsal_rcp.c.

fsal_status_t LUSTREFSAL_read	(	fsal_file_t *	file_desc,
		fsal_seek_t *	p_seek_descriptor,
		fsal_size_t	buffer_size,
		caddr_t	buffer,
		fsal_size_t *	p_read_amount,
		fsal_boolean_t *	p_end_of_file
	)

FSAL_read: Perform a read operation on an opened file.

Parameters:

file_descriptor	(input): The file descriptor returned by FSAL_open.
seek_descriptor	(optional input): Specifies the position where data is to be read. If not specified, data will be read at the current position.
buffer_size	(input): Amount (in bytes) of data to be read.
buffer	(output): Address where the read data is to be stored in memory.
read_amount	(output): Pointer to the amount of data (in bytes) that have been read during this call.
end_of_file	(output): Pointer to a boolean that indicates whether the end of file has been reached during this call.

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• Another error code if an error occured during this call.

Todo:

: manage fsal_size_t to size_t convertion

Todo:

: manage ssize_t to fsal_size_t convertion

Definition at line 322 of file FSAL_LUSTRE/fsal_fileop.c.

fsal_status_t LUSTREFSAL_readdir	(	fsal_dir_t *	dir_desc,
		fsal_cookie_t	start_pos,
		fsal_attrib_mask_t	get_attr_mask,
		fsal_mdsize_t	buffersize,
		fsal_dirent_t *	p_pdirent,
		fsal_cookie_t *	p_end_position,
		fsal_count_t *	p_nb_entries,
		fsal_boolean_t *	p_end_of_dir
	)

FSAL_readdir : Read the entries of an opened directory.

Parameters:

dir_descriptor	(input): Pointer to the directory descriptor filled by FSAL_opendir.
start_position	(input): Cookie that indicates the first object to be read during this readdir operation. This should be : FSAL_READDIR_FROM_BEGINNING for reading the content of the directory from the beginning. The end_position parameter returned by the previous call to FSAL_readdir.
get_attr_mask	(input) Specify the set of attributes to be retrieved for directory entries.
buffersize	(input) The size (in bytes) of the buffer where the direntries are to be stored.
pdirent	(output) Adresse of the buffer where the direntries are to be stored.
end_position	(output) Cookie that indicates the current position in the directory.
nb_entries	(output) Pointer to the number of entries read during the call.
end_of_dir	(output) Pointer to a boolean that indicates if the end of dir has been reached during the call.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 146 of file FSAL_LUSTRE/fsal_dirs.c.

fsal_status_t LUSTREFSAL_readlink	(	fsal_handle_t *	p_linkhandle,
		fsal_op_context_t *	p_context,
		fsal_path_t *	p_link_content,
		fsal_attrib_list_t *	p_link_attributes
	)

FSAL_readlink: Read the content of a symbolic link.

Parameters:

linkhandle	(input): Handle of the link to be read.
cred	(input): Authentication context for the operation (user,...).
p_link_content	(output): Pointer to an fsal path structure where the link content is to be stored..
link_attributes	(optionnal input/output): The post operation attributes of the symlink link. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 46 of file FSAL_LUSTRE/fsal_symlinks.c.

fsal_status_t LUSTREFSAL_RemoveXAttrById	(	fsal_handle_t *	p_objecthandle,
		fsal_op_context_t *	p_context,
		unsigned int	xattr_id
	)

Removes a xattr by Id

Parameters:

p_objecthandle	Handle of the object you want to get attribute for.
p_context	pointer to the current security context.
xattr_id	xattr's id

Definition at line 1179 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_RemoveXAttrByName	(	fsal_handle_t *	p_objecthandle,
		fsal_op_context_t *	p_context,
		const fsal_name_t *	xattr_name
	)

Removes a xattr by Name

Parameters:

p_objecthandle	Handle of the object you want to get attribute for.
p_context	pointer to the current security context.
xattr_name	xattr's name

Definition at line 1213 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_rename	(	fsal_handle_t *	p_old_parentdir_handle,
		fsal_name_t *	p_old_name,
		fsal_handle_t *	p_new_parentdir_handle,
		fsal_name_t *	p_new_name,
		fsal_op_context_t *	p_context,
		fsal_attrib_list_t *	p_src_dir_attributes,
		fsal_attrib_list_t *	p_tgt_dir_attributes
	)

FSAL_rename: Change name and/or parent dir of a filesystem object.

Parameters:

old_parentdir_handle	(input): Source parent directory of the object is to be moved/renamed.
p_old_name	(input): Pointer to the current name of the object to be moved/renamed.
new_parentdir_handle	(input): Target parent directory for the object.
p_new_name	(input): Pointer to the new name for the object.
cred	(input): Authentication context for the operation (user,...).
src_dir_attributes	(optionnal input/output): Post operation attributes for the source directory. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.
tgt_dir_attributes	(optionnal input/output): Post operation attributes for the target directory. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 56 of file FSAL_LUSTRE/fsal_rename.c.

fsal_status_t LUSTREFSAL_set_quota	(	fsal_path_t *	pfsal_path,
		int	quota_type,
		fsal_uid_t	fsal_uid,
		fsal_quota_t *	pquota,
		fsal_quota_t *	presquota
	)

FSAL_get_quota : Gets the quota for a given path.

Parameters:

pfsal_path	path to the filesystem whose quota are requested
quota_type	the kind of requested quota (user or group)
fsal_uid	uid for the user whose quota are requested
pquota	(input): pointer to the structure containing the wanted quotas
presquot	(output) pointer to the structure containing the resulting quotas

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 113 of file FSAL_LUSTRE/fsal_quota.c.

fsal_status_t LUSTREFSAL_setattrs	(	fsal_handle_t *	p_filehandle,
		fsal_op_context_t *	p_context,
		fsal_attrib_list_t *	p_attrib_set,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_setattrs: Set attributes for the object specified by its filehandle.

Parameters:

filehandle	(input): The handle of the object to get parameters.
cred	(input): Authentication context for the operation (user,...).
attrib_set	(mandatory input): The attributes to be set for the object. It defines the attributes that the caller wants to set and their values.
object_attributes	(optionnal input/output): The post operation attributes for the object. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 116 of file FSAL_LUSTRE/fsal_attrs.c.

fsal_status_t LUSTREFSAL_SetDefault_FS_specific_parameter

(

fsal_parameter_t *

out_parameter

)

Those routines set the default parameters for FSAL init structure.

Returns:

ERR_FSAL_NO_ERROR (no error) , ERR_FSAL_FAULT (null pointer given as parameter), ERR_FSAL_SERVERFAULT (unexpected error)

Definition at line 260 of file FSAL_LUSTRE/fsal_tools.c.

fsal_status_t LUSTREFSAL_SetXAttrValue	(	fsal_handle_t *	p_objecthandle,
		const fsal_name_t *	xattr_name,
		fsal_op_context_t *	p_context,
		caddr_t	buffer_addr,
		size_t	buffer_size,
		int	create
	)

Definition at line 1101 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_SetXAttrValueById	(	fsal_handle_t *	p_objecthandle,
		unsigned int	xattr_id,
		fsal_op_context_t *	p_context,
		caddr_t	buffer_addr,
		size_t	buffer_size
	)

Definition at line 1138 of file FSAL_LUSTRE/fsal_xattrs.c.

fsal_status_t LUSTREFSAL_symlink	(	fsal_handle_t *	p_parent_directory_handle,
		fsal_name_t *	p_linkname,
		fsal_path_t *	p_linkcontent,
		fsal_op_context_t *	p_context,
		fsal_accessmode_t	accessmode,
		fsal_handle_t *	p_link_handle,
		fsal_attrib_list_t *	p_link_attributes
	)

FSAL_symlink: Create a symbolic link.

Parameters:

parent_directory_handle	(input): Handle of the parent directory where the link is to be created.
p_linkname	(input): Name of the link to be created.
p_linkcontent	(input): Content of the link to be created.
cred	(input): Authentication context for the operation (user,...).
accessmode	(ignored input): Mode of the link to be created. It has no sense in HPSS nor UNIX filesystems.
link_handle	(output): Pointer to the handle of the created symlink.
link_attributes	(optionnal input/output): Attributes of the newly created symlink. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 137 of file FSAL_LUSTRE/fsal_symlinks.c.

fsal_status_t LUSTREFSAL_test_access	(	fsal_op_context_t *	p_context,
		fsal_accessflags_t	access_type,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_test_access : Tests whether the user or entity identified by its cred can access the object as indicated by the access_type parameter. This function tests access rights using cached attributes given as parameter. Thus, it cannot test FSAL_F_OK flag, and asking such a flag will result in a ERR_FSAL_INVAL error.

Parameters:

cred	(input): Authentication context for the operation (user,...).
access_type	(input): Indicates the permissions to test. This is an inclusive OR of the permissions to be checked for the user identified by cred. Permissions constants are : FSAL_R_OK : test for read permission FSAL_W_OK : test for write permission FSAL_X_OK : test for exec permission FSAL_F_OK : test for file existence
object_attributes	(mandatory input): The cached attributes for the object to test rights on. The following attributes MUST be filled : owner, group, mode, ACLs.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 75 of file FSAL_LUSTRE/fsal_local_op.c.

fsal_status_t LUSTREFSAL_truncate	(	fsal_handle_t *	p_filehandle,
		fsal_op_context_t *	p_context,
		fsal_size_t	length,
		fsal_file_t *	file_descriptor,
		fsal_attrib_list_t *	p_object_attributes
	)

FSAL_truncate: Modify the data length of a regular file.

Parameters:

filehandle	(input): Handle of the file is to be truncated.
cred	(input): Authentication context for the operation (user,...).
length	(input): The new data length for the file.
object_attributes	(optionnal input/output): The post operation attributes of the file. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occurred.

Definition at line 52 of file FSAL_LUSTRE/fsal_truncate.c.

fsal_status_t LUSTREFSAL_unlink	(	fsal_handle_t *	p_parent_directory_handle,
		fsal_name_t *	p_object_name,
		fsal_op_context_t *	p_context,
		fsal_attrib_list_t *	p_parent_directory_attributes
	)

FSAL_unlink: Remove a filesystem object .

Parameters:

parentdir_handle	(input): Handle of the parent directory of the object to be deleted.
p_object_name	(input): Name of the object to be removed.
cred	(input): Authentication context for the operation (user,...).
parentdir_attributes	(optionnal input/output): Post operation attributes of the parent directory. As input, it defines the attributes that the caller wants to retrieve (by positioning flags into this structure) and the output is built considering this input (it fills the structure according to the flags it contains). May be NULL.

Returns:

Major error codes :

• ERR_FSAL_NO_ERROR (no error)
• Another error code if an error occured.

Definition at line 46 of file FSAL_LUSTRE/fsal_unlink.c.

fsal_status_t LUSTREFSAL_write	(	fsal_file_t *	file_desc,
		fsal_op_context_t *	p_context,
		fsal_seek_t *	p_seek_descriptor,
		fsal_size_t	buffer_size,
		caddr_t	buffer,
		fsal_size_t *	p_write_amount
	)

FSAL_write: Perform a write operation on an opened file.

Parameters:

file_descriptor	(input): The file descriptor returned by FSAL_open.
p_context	(input): Authentication context for the operation (user,...).
seek_descriptor	(optional input): Specifies the position where data is to be written. If not specified, data will be written at the current position.
buffer_size	(input): Amount (in bytes) of data to be written.
buffer	(input): Address in memory of the data to write to file.
write_amount	(output): Pointer to the amount of data (in bytes) that have been written during this call.

Returns:

Major error codes:

• ERR_FSAL_NO_ERROR: no error.
• Another error code if an error occured during this call.

Todo:

: manage fsal_size_t to size_t convertion

Todo:

: manage ssize_t to fsal_size_t convertion

Definition at line 447 of file FSAL_LUSTRE/fsal_fileop.c.

void ReleaseTokenFSCall

(

)

Definition at line 269 of file FSAL_CEPH/fsal_internal.c.

void TakeTokenFSCall

(

)

Used to limit the number of simultaneous calls to Filesystem.

Definition at line 258 of file FSAL_CEPH/fsal_internal.c.

---

Variable Documentation

fsal_staticfsinfo_t global_fs_info

Definition at line 52 of file FSAL_CEPH/fsal_internal.c.