fsal_status_t
GPFSFSAL_create2(struct fsal_obj_handle *dir_hdl, const char *filename,
const struct req_op_context *op_ctx, mode_t unix_mode,
struct gpfs_file_handle *gpfs_fh, int posix_flags,
struct attrlist *fsal_attr)
{
fsal_status_t status;
/* note : fsal_attr is optional. */
if (!dir_hdl || !op_ctx || !gpfs_fh || !filename)
return fsalstat(ERR_FSAL_FAULT, 0);
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", unix_mode);
/* call to filesystem */
fsal_set_credentials(op_ctx->creds);
status = fsal_internal_create(dir_hdl, filename, unix_mode | S_IFREG,
posix_flags, gpfs_fh, NULL);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/* retrieve file attributes */
return GPFSFSAL_getattrs(op_ctx->fsal_export, dir_hdl->fs->private_data,
op_ctx, gpfs_fh, fsal_attr);
}
/**
* @brief Create a regular file.
*
* @param dir_hdl Handle of parent directory where the file is to be created.
* @param filename Pointer to the name of the file to be created.
* @param op_ctx Authentication context for the operation (user,...).
* @param accessmode Mode for the file to be created.
* @param gpfs_fh Pointer to the handle of the created file.
* @param fsal_attr Attributes of the created file.
* @return ERR_FSAL_NO_ERROR on success, otherwise error
*
*/
fsal_status_t
GPFSFSAL_create(struct fsal_obj_handle *dir_hdl, const char *filename,
const struct req_op_context *op_ctx, uint32_t accessmode,
struct gpfs_file_handle *gpfs_fh, struct attrlist *fsal_attr)
{
fsal_status_t status;
mode_t unix_mode;
/* note : fsal_attr is optional. */
if (!dir_hdl || !op_ctx || !gpfs_fh || !filename)
return fsalstat(ERR_FSAL_FAULT, 0);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~op_ctx->fsal_export->exp_ops.
fs_umask(op_ctx->fsal_export);
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
/* call to filesystem */
fsal_set_credentials(op_ctx->creds);
status = fsal_internal_create(dir_hdl, filename, unix_mode | S_IFREG,
0, gpfs_fh, NULL);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/* retrieve file attributes */
return GPFSFSAL_getattrs(op_ctx->fsal_export, dir_hdl->fs->private_data,
op_ctx, gpfs_fh, fsal_attr);
}
/**
* FSAL_open:
* Open a regular file for reading/writing its data content.
*
* \param filehandle (input):
* Handle of the file to be read/modified.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param 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.
* \param file_descriptor (output):
* The file descriptor to be used for FSAL_read/write operations.
* \param 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).
*
* \return Major error codes:
* - ERR_FSAL_NO_ERROR: no error.
* - Another error code if an error occured during this call.
*/
fsal_status_t GPFSFSAL_open(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_openflags_t openflags, /* IN */
fsal_file_t * file_desc, /* OUT */
fsal_attrib_list_t * p_file_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
fsal_status_t status;
int fd;
int posix_flags = 0;
gpfsfsal_file_t * p_file_descriptor = (gpfsfsal_file_t *)file_desc;
/* sanity checks.
* note : file_attributes is optional.
*/
if(!p_filehandle || !p_context || !p_file_descriptor)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_open);
/* convert fsal open flags to posix open flags */
rc = fsal2posix_openflags(openflags, &posix_flags);
/* flags conflicts. */
if(rc)
{
LogWarn(COMPONENT_FSAL, "Invalid/conflicting flags : %#X", openflags);
Return(rc, 0, INDEX_FSAL_open);
}
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_filehandle, &fd, posix_flags);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_open);
/* output attributes */
if(p_file_attributes)
{
p_file_attributes->asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_filehandle, p_context, p_file_attributes);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_open);
}
TakeTokenFSCall();
p_file_descriptor->fd = fd;
errsv = errno;
ReleaseTokenFSCall();
/* set the read-only flag of the file descriptor */
p_file_descriptor->ro = openflags & FSAL_O_RDONLY;
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_open);
}
fsal_status_t WRAP_GPFSFSAL_getattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t *
p_object_attributes /* IN/OUT */ )
{
return GPFSFSAL_getattrs((gpfsfsal_handle_t *) p_filehandle,
(gpfsfsal_op_context_t *) p_context, p_object_attributes);
}
/**
* GPFSFSAL_getattrs_descriptor:
* Get attributes for the object specified by its descriptor or by it's filehandle.
*
* \param p_file_descriptor (input):
* The file descriptor of the object to get parameters.
* \param p_filehandle (input):
* The handle of the object to get parameters.
* \param p_context (input):
* Authentication context for the operation (user,...).
* \param p_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).
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_getattrs_descriptor(fsal_file_t * p_file_descriptor, /* IN */
fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_object_attributes /* IN/OUT */
)
{
return GPFSFSAL_getattrs(p_filehandle, p_context, p_object_attributes);
}
/**
* FSAL_opendir :
* Opens a directory for reading its content.
*
* \param dir_handle (input)
* the handle of the directory to be opened.
* \param cred (input)
* Permission context for the operation (user,...).
* \param dir_descriptor (output)
* pointer to an allocated structure that will receive
* directory stream informations, on successfull completion.
* \param dir_attributes (optional output)
* On successfull completion,the structure pointed
* by dir_attributes receives the new directory attributes.
* May be NULL.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_opendir(fsal_handle_t * p_dir_handle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_dir_t * dir_desc, /* OUT */
fsal_attrib_list_t * p_dir_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t dir_attrs;
gpfsfsal_dir_t *p_dir_descriptor = (gpfsfsal_dir_t *)dir_desc;
/* sanity checks
* note : dir_attributes is optionnal.
*/
if(!p_dir_handle || !p_context || !p_dir_descriptor)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_opendir);
/* get the path of the directory */
TakeTokenFSCall();
status =
fsal_internal_handle2fd(p_context, p_dir_handle,
&p_dir_descriptor->fd,
O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_opendir);
/* get directory metadata */
dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_dir_handle, p_context, &dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_opendir);
/* Test access rights for this directory */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_R_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_LIST_DIR);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_opendir);
/* if everything is OK, fills the dir_desc structure : */
memcpy(&(p_dir_descriptor->context), p_context, sizeof(fsal_op_context_t));
memcpy(&(p_dir_descriptor->handle), p_dir_handle, sizeof(fsal_handle_t));
if(p_dir_attributes)
*p_dir_attributes = dir_attrs;
p_dir_descriptor->dir_offset = 0;
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_opendir);
}
/**
* Get the attributes of an extended attribute from its index.
*
* \param p_objecthandle Handle of the object you want to get attribute for.
* \param p_context pointer to the current security context.
* \param xattr_cookie xattr's cookie (as returned by listxattrs).
* \param p_attrs xattr's attributes.
*/
fsal_status_t GPFSFSAL_GetXAttrAttrs(fsal_handle_t * p_objecthandle, /* IN */
fsal_op_context_t * p_context, /* IN */
unsigned int xattr_id, /* IN */
fsal_attrib_list_t * p_attrs
/**< IN/OUT xattr attributes (if supported) */
)
{
#if 0
int rc;
char buff[MAXNAMLEN+1];
fsal_status_t st;
fsal_attrib_list_t file_attrs;
#endif
/* sanity checks */
if(!p_objecthandle || !p_context || !p_attrs)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_GetXAttrAttrs);
/* @todo: to be implemented */
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_GetXAttrAttrs);
#if 0
/* check that this index match the type of entry */
if(xattr_id >= XATTR_COUNT
|| !do_match_type(xattr_list[xattr_id].flags, p_objecthandle->handle.handle_type))
{
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_GetXAttrAttrs);
}
/* object attributes we want to retrieve from parent */
file_attrs.asked_attributes = FSAL_ATTR_MODE | FSAL_ATTR_FILEID | FSAL_ATTR_OWNER
| FSAL_ATTR_GROUP | FSAL_ATTR_ATIME | FSAL_ATTR_MTIME
| FSAL_ATTR_CTIME | FSAL_ATTR_CREATION | FSAL_ATTR_CHGTIME | FSAL_ATTR_FSID;
/* don't retrieve attributes not asked */
file_attrs.asked_attributes &= p_attrs->asked_attributes;
st = GPFSFSAL_getattrs(p_objecthandle, p_context, &file_attrs);
if(FSAL_IS_ERROR(st))
Return(st.major, st.minor, INDEX_FSAL_GetXAttrAttrs);
if((rc = file_attributes_to_xattr_attrs(&file_attrs, p_attrs, xattr_id)))
{
Return(ERR_FSAL_INVAL, rc, INDEX_FSAL_GetXAttrAttrs);
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_GetXAttrAttrs);
#endif
} /* FSAL_GetXAttrAttrs */
static fsal_status_t getattrs(struct fsal_obj_handle *obj_hdl,
struct attrlist *attrs)
{
struct gpfs_fsal_obj_handle *myself;
fsal_status_t status;
myself = container_of(obj_hdl, struct gpfs_fsal_obj_handle,
obj_handle);
status = GPFSFSAL_getattrs(op_ctx->fsal_export,
obj_hdl->fs->private_data,
op_ctx, myself->handle,
attrs);
if (FSAL_IS_ERROR(status)) {
FSAL_CLEAR_MASK(attrs->mask);
FSAL_SET_MASK(attrs->mask, ATTR_RDATTR_ERR);
}
return status;
}
fsal_status_t GPFSFSAL_lookupPath(fsal_path_t * p_path, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_handle_t * object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
/* sanity checks
* note : object_attributes is optionnal.
*/
if(!object_handle || !p_context || !p_path)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_lookupPath);
/* test whether the path begins with a slash */
if(p_path->path[0] != '/')
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_lookupPath);
/* directly call the lookup function */
status = fsal_internal_get_handle(p_context, p_path, object_handle);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_lookupPath);
/* get object attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(object_handle, p_context, p_object_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_lookupPath);
}
/**
* @brief Create a directory.
*
* @param dir_hdl Handle of the parent directory
* @param dir_name Pointer to the name of the directory to be created.
* @param op_ctx Authentication context for the operation (user,...).
* @param accessmode Mode for the directory to be created.
* @param gpfs_fh Pointer to the handle of the created directory.
* @param fsal_attr Attributes of the created directory.
* @return ERR_FSAL_NO_ERROR on success, error otherwise
*
*/
fsal_status_t
GPFSFSAL_mkdir(struct fsal_obj_handle *dir_hdl, const char *dir_name,
const struct req_op_context *op_ctx, uint32_t accessmode,
struct gpfs_file_handle *gpfs_fh, struct attrlist *obj_attr)
{
mode_t unix_mode;
fsal_status_t status;
/* note : obj_attr is optional. */
if (!dir_hdl || !op_ctx || !gpfs_fh || !dir_name)
return fsalstat(ERR_FSAL_FAULT, 0);
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode &
~op_ctx->fsal_export->exp_ops.fs_umask(op_ctx->fsal_export);
/* build new entry path */
/* creates the directory and get its handle */
fsal_set_credentials(op_ctx->creds);
status = fsal_internal_create(dir_hdl, dir_name, unix_mode | S_IFDIR,
0, gpfs_fh, NULL);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/* retrieve file attributes */
return GPFSFSAL_getattrs(op_ctx->fsal_export,
dir_hdl->fs->private_data,
op_ctx, gpfs_fh, obj_attr);
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_dirname (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created directory.
* \param 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.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_mkdir(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
int setgid_bit = 0;
mode_t unix_mode;
fsal_status_t status;
int fd, newfd;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_dirname)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mkdir);
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_parent_directory_handle, &fd, O_RDONLY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* get directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* Check the user can write in the directory, and check the setgid bit on the directory */
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID)
setgid_bit = 1;
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_SUBDIRECTORY);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* build new entry path */
/* creates the directory and get its handle */
TakeTokenFSCall();
rc = mkdirat(fd, p_dirname->name, unix_mode);
errsv = errno;
if(rc)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
ReleaseTokenFSCall();
/****
* There is a race here between mkdir creation and the open, not
* sure there is any way to close it in practice.
*/
/* get the new handle */
TakeTokenFSCall();
status = fsal_internal_get_handle_at(fd, p_dirname, p_object_handle);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mkdir);
}
TakeTokenFSCall();
status =
fsal_internal_handle2fd_at(fd, p_object_handle, &newfd, O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mkdir);
}
/* the directory has been created */
/* chown the dir to the current user/group */
if(p_context->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(fd);
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mkdir);
}
}
close(fd);
close(newfd);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mkdir);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param 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.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t GPFSFSAL_create(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
mode_t unix_mode;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
/* retrieve directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* Check the user can write in the directory */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
else
status = fsal_internal_access(p_context, p_parent_directory_handle, access_mask,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* call to filesystem */
fsal_set_credentials(p_context);
TakeTokenFSCall();
status = fsal_internal_create(p_context, p_parent_directory_handle,
p_filename, unix_mode | S_IFREG, 0,
p_object_handle, NULL);
ReleaseTokenFSCall();
fsal_restore_ganesha_credentials();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
// error injection to test DRC
//sleep(61);
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
/**
* FSAL_mknode:
* Create a special object in the filesystem.
* Not supported upon HPSS.
*
* \return ERR_FSAL_NOTSUPP.
*/
fsal_status_t GPFSFSAL_mknode(fsal_handle_t * parentdir_handle, /* IN */
fsal_name_t * p_node_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_nodetype_t nodetype, /* IN */
fsal_dev_t * dev, /* IN */
fsal_handle_t * p_object_handle, /* OUT (handle to the created node) */
fsal_attrib_list_t * node_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
/* int flags=(O_RDONLY|O_NOFOLLOW); */
mode_t unix_mode = 0;
dev_t unix_dev = 0;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parentdir_handle || !p_context || !p_node_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
switch (nodetype)
{
case FSAL_TYPE_BLK:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_CHR:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_SOCK:
unix_mode |= S_IFSOCK;
break;
case FSAL_TYPE_FIFO:
unix_mode |= S_IFIFO;
/* flags = (O_RDONLY | O_NOFOLLOW | O_NONBLOCK); */
break;
default:
LogMajor(COMPONENT_FSAL,
"Invalid node type in FSAL_mknode: %d", nodetype);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_mknode);
}
/* retrieve directory attributes */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(parentdir_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* Check the user can write in the directory */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
else
status = fsal_internal_access(p_context, parentdir_handle, access_mask,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
fsal_set_credentials(p_context);
TakeTokenFSCall();
status = fsal_internal_create(p_context, parentdir_handle,
p_node_name, unix_mode, unix_dev,
p_object_handle, NULL);
ReleaseTokenFSCall();
fsal_restore_ganesha_credentials();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* Fills the attributes if needed */
if(node_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, node_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(node_attributes->asked_attributes);
FSAL_SET_MASK(node_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* Finished */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mknode);
}
/**
* FSAL_mkdir:
* Create a directory.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where
* the subdirectory is to be created.
* \param p_dirname (input):
* Pointer to the name of the directory to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created directory.
* \param 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.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_mkdir(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_dirname, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
/* int setgid_bit = 0; */
mode_t unix_mode;
fsal_status_t status;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_dirname)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mkdir);
/* convert FSAL mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
/* get directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* Check the user can write in the directory, and check the setgid bit on the directory */
/* if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID) */
/* setgid_bit = 1; */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_SUBDIRECTORY);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
else
status = fsal_internal_access(p_context, p_parent_directory_handle, access_mask,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* build new entry path */
/* creates the directory and get its handle */
fsal_set_credentials(p_context);
TakeTokenFSCall();
status = fsal_internal_create(p_context, p_parent_directory_handle,
p_dirname, unix_mode | S_IFDIR, 0,
p_object_handle, NULL);
ReleaseTokenFSCall();
fsal_restore_ganesha_credentials();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mkdir);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mkdir);
}
fsal_status_t GPFSFSAL_truncate(gpfsfsal_handle_t * p_filehandle, /* IN */
gpfsfsal_op_context_t * p_context, /* IN */
fsal_size_t length, /* IN */
gpfsfsal_file_t * file_descriptor, /* Unused in this FSAL */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
int fd;
fsal_status_t st;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_filehandle || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_truncate);
/* get the path of the file and its handle */
TakeTokenFSCall();
st = fsal_internal_handle2fd(p_context, p_filehandle, &fd, O_RDWR);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(st))
ReturnStatus(st, INDEX_FSAL_truncate);
/* Executes the POSIX truncate operation */
TakeTokenFSCall();
rc = ftruncate(fd, length);
errsv = errno;
ReleaseTokenFSCall();
close(fd);
/* convert return code */
if(rc)
{
if(errsv == ENOENT)
Return(ERR_FSAL_STALE, errsv, INDEX_FSAL_truncate);
else
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_truncate);
}
/* Optionally retrieve attributes */
if(p_object_attributes)
{
fsal_status_t st;
st = GPFSFSAL_getattrs(p_filehandle, p_context, p_object_attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* No error occurred */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_truncate);
}
/**
* GPFSFSAL_setattrs:
* Set attributes for the object specified by its filehandle.
*
* \param filehandle (input):
* The handle of the object to get parameters.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param 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.
* \param 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.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_setattrs(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_attrib_set, /* IN */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
unsigned int i;
fsal_status_t status;
/* Buffer that will be passed to gpfs_ganesha API. */
gpfsfsal_xstat_t buffxstat;
/* Indicate if stat or acl or both should be changed. */
int attr_valid = 0;
/* Indiate which attribute in stat should be changed. */
int attr_changed = 0;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t wanted_attrs, current_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_filehandle || !p_context || !p_attrib_set)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_setattrs);
/* local copy of attributes */
wanted_attrs = *p_attrib_set;
/* It does not make sense to setattr on a symlink */
/* if(p_filehandle->type == DT_LNK)
return fsal_internal_setattrs_symlink(p_filehandle, p_context, p_attrib_set,
p_object_attributes);
*/
/* First, check that FSAL attributes changes are allowed. */
/* Is it allowed to change times ? */
if(!global_fs_info.cansettime)
{
if(wanted_attrs.asked_attributes
& (FSAL_ATTR_ATIME | FSAL_ATTR_CREATION | FSAL_ATTR_CTIME | FSAL_ATTR_MTIME))
{
/* handled as an unsettable attribute. */
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_setattrs);
}
}
/* apply umask, if mode attribute is to be changed */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MODE))
{
wanted_attrs.mode &= (~global_fs_info.umask);
}
/* get current attributes */
current_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_filehandle, p_context, ¤t_attrs);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
ReturnStatus(status, INDEX_FSAL_setattrs);
}
/***********
* CHMOD *
***********/
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MODE))
{
/* The POSIX chmod call don't affect the symlink object, but
* the entry it points to. So we must ignore it.
*/
if(current_attrs.type != FSAL_TYPE_LNK)
{
#ifdef _USE_NFS4_ACL
if(current_attrs.acl)
{
/* Check permission using ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy. */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ATTR);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
#endif
/* For modifying mode, user must be root or the owner */
if((p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner))
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHMOD opeartion: current owner=%d, credential=%d",
current_attrs.owner, p_context->credential.user);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
#ifdef _USE_NFS4_ACL
}
#endif
attr_valid |= XATTR_STAT;
attr_changed |= XATTR_MODE;
/* Fill wanted mode. */
buffxstat.buffstat.st_mode = fsal2unix_mode(wanted_attrs.mode);
LogDebug(COMPONENT_FSAL,
"current mode = %o, new mode = %o",
fsal2unix_mode(current_attrs.mode), buffxstat.buffstat.st_mode);
}
}
/***********
* CHOWN *
***********/
/* Only root can change uid and A normal user must be in the group he wants to set */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER))
{
#ifdef _USE_NFS4_ACL
if(current_attrs.acl)
{
/* Check permission using ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy. */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_OWNER);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
#endif
/* For modifying owner, user must be root or current owner==wanted==client */
if((p_context->credential.user != 0) &&
((p_context->credential.user != current_attrs.owner) ||
(p_context->credential.user != wanted_attrs.owner)))
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHOWN opeartion: current owner=%d, credential=%d, new owner=%d",
current_attrs.owner, p_context->credential.user, wanted_attrs.owner);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
#ifdef _USE_NFS4_ACL
}
#endif
}
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_GROUP))
{
#ifdef _USE_NFS4_ACL
if(current_attrs.acl)
{
/* Check permission using ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy. */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_OWNER);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
#endif
/* For modifying group, user must be root or current owner */
if((p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner))
{
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
int in_grp = 0;
/* set in_grp */
if(p_context->credential.group == wanted_attrs.group)
in_grp = 1;
else
for(i = 0; i < p_context->credential.nbgroups; i++)
{
if((in_grp = (wanted_attrs.group == p_context->credential.alt_groups[i])))
break;
}
/* it must also be in target group */
if(p_context->credential.user != 0 && !in_grp)
{
LogFullDebug(COMPONENT_FSAL,
"Permission denied for CHOWN operation: current group=%d, credential=%d, new group=%d",
current_attrs.group, p_context->credential.group, wanted_attrs.group);
Return(ERR_FSAL_PERM, 0, INDEX_FSAL_setattrs);
}
#ifdef _USE_NFS4_ACL
}
#endif
}
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER | FSAL_ATTR_GROUP))
{
/* LogFullDebug(COMPONENT_FSAL, "Performing chown(%s, %d,%d)",
fsalpath.path, FSAL_TEST_MASK(wanted_attrs.asked_attributes,
FSAL_ATTR_OWNER) ? (int)wanted_attrs.owner
: -1, FSAL_TEST_MASK(wanted_attrs.asked_attributes,
FSAL_ATTR_GROUP) ? (int)wanted_attrs.group : -1);*/
attr_valid |= XATTR_STAT;
attr_changed |= FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER) ?
XATTR_UID : XATTR_GID;
/* Fill wanted owner. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_OWNER))
{
buffxstat.buffstat.st_uid = (int)wanted_attrs.owner;
LogDebug(COMPONENT_FSAL,
"current uid = %d, new uid = %d",
current_attrs.owner, buffxstat.buffstat.st_uid);
}
/* Fill wanted group. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_GROUP))
{
buffxstat.buffstat.st_gid = (int)wanted_attrs.group;
LogDebug(COMPONENT_FSAL,
"current gid = %d, new gid = %d",
current_attrs.group, buffxstat.buffstat.st_gid);
}
}
/***********
* UTIME *
***********/
/* user must be the owner or have read access to modify 'atime' */
access_mask = FSAL_MODE_MASK_SET(FSAL_R_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ATTR);
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ATIME)
&& (p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner)
&& ((status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs)).major
!= ERR_FSAL_NO_ERROR))
{
ReturnStatus(status, INDEX_FSAL_setattrs);
}
/* user must be the owner or have write access to modify 'mtime' */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ATTR);
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MTIME)
&& (p_context->credential.user != 0)
&& (p_context->credential.user != current_attrs.owner)
&& ((status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs)).major
!= ERR_FSAL_NO_ERROR))
{
ReturnStatus(status, INDEX_FSAL_setattrs);
}
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ATIME | FSAL_ATTR_MTIME))
{
attr_valid |= XATTR_STAT;
/* Fill wanted atime. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ATIME))
{
attr_changed |= XATTR_ATIME;
buffxstat.buffstat.st_atime = (time_t) wanted_attrs.atime.seconds;
LogDebug(COMPONENT_FSAL,
"current atime = %lu, new atime = %lu",
(unsigned long)current_attrs.atime.seconds, (unsigned long)buffxstat.buffstat.st_atime);
}
/* Fill wanted mtime. */
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_MTIME))
{
attr_changed |= XATTR_CTIME;
buffxstat.buffstat.st_mtime = (time_t) wanted_attrs.mtime.seconds;
LogDebug(COMPONENT_FSAL,
"current mtime = %lu, new mtime = %lu",
(unsigned long)current_attrs.mtime.seconds, (unsigned long)buffxstat.buffstat.st_mtime);
}
}
#ifdef _USE_NFS4_ACL
/***********
* ACL *
***********/
if(FSAL_TEST_MASK(wanted_attrs.asked_attributes, FSAL_ATTR_ACL))
{
/* Check permission to set ACL. */
access_mask = FSAL_MODE_MASK_SET(0) | /* Dummy */
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_ACL);
status = fsal_internal_testAccess(p_context, access_mask, NULL, ¤t_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
if(wanted_attrs.acl)
{
attr_valid |= XATTR_ACL;
LogDebug(COMPONENT_FSAL, "setattr acl = %p", wanted_attrs.acl);
/* Convert FSAL ACL to GPFS NFS4 ACL and fill the buffer. */
status = fsal_acl_2_gpfs_acl(wanted_attrs.acl, &buffxstat);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
else
{
LogCrit(COMPONENT_FSAL, "setattr acl is NULL");
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_setattrs);
}
}
#endif /* _USE_NFS4_ACL */
/* If there is any change in stat or acl or both, send it down to file system. */
if((attr_valid == XATTR_STAT && attr_changed !=0) || attr_valid == XATTR_ACL)
{
status = fsal_set_xstat_by_handle(p_context,
p_filehandle,
attr_valid,
attr_changed,
&buffxstat);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_setattrs);
}
/* Optionaly fills output attributes. */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_filehandle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_setattrs);
}
/**
* FSAL_open:
* Open a regular file for reading/writing its data content.
*
* \param filehandle (input):
* Handle of the file to be read/modified.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param 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.
* \param file_descriptor (output):
* The file descriptor to be used for FSAL_read/write operations.
* \param 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).
*
* \return Major error codes:
* - ERR_FSAL_NO_ERROR: no error.
* - Another error code if an error occured during this call.
*/
fsal_status_t GPFSFSAL_open(fsal_handle_t * p_filehandle, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_openflags_t openflags, /* IN */
fsal_file_t * file_desc, /* OUT */
fsal_attrib_list_t * p_file_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
fsal_status_t status;
int fd;
int posix_flags = 0;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t file_attrs;
gpfsfsal_file_t * p_file_descriptor = (gpfsfsal_file_t *)file_desc;
/* sanity checks.
* note : file_attributes is optional.
*/
if(!p_filehandle || !p_context || !p_file_descriptor)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_open);
/* convert fsal open flags to posix open flags */
rc = fsal2posix_openflags(openflags, &posix_flags);
/* flags conflicts. */
if(rc)
{
LogWarn(COMPONENT_FSAL, "Invalid/conflicting flags : %#X", openflags);
Return(rc, 0, INDEX_FSAL_open);
}
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_filehandle, &fd, posix_flags);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_open);
/* retrieve file attributes for checking access rights */
file_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_filehandle, p_context, &file_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_open);
/* Set both mode and ace4 mask */
if(openflags & FSAL_O_RDONLY)
access_mask = FSAL_MODE_MASK_SET(FSAL_R_OK | FSAL_OWNER_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_READ_DATA);
else
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_OWNER_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_WRITE_DATA | FSAL_ACE_PERM_APPEND_DATA);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &file_attrs);
if(FSAL_IS_ERROR(status))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_open);
}
TakeTokenFSCall();
p_file_descriptor->fd = fd;
errsv = errno;
ReleaseTokenFSCall();
/* set the read-only flag of the file descriptor */
p_file_descriptor->ro = openflags & FSAL_O_RDONLY;
/* output attributes */
if(p_file_attributes)
*p_file_attributes = file_attrs;
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_open);
}
/**
* FSAL_create:
* Create a regular file.
*
* \param parent_directory_handle (input):
* Handle of the parent directory where the file is to be created.
* \param p_filename (input):
* Pointer to the name of the file to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the file to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param object_handle (output):
* Pointer to the handle of the created file.
* \param 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.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occurred.
*/
fsal_status_t GPFSFSAL_create(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_handle_t * p_object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
int rc = 0, errsv;
int setgid_bit = 0;
fsal_status_t status;
int fd, newfd;
mode_t unix_mode;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : object_attributes is optional.
*/
if(!p_parent_directory_handle || !p_context || !p_object_handle || !p_filename)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_create);
/* convert fsal mode to unix mode. */
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
LogFullDebug(COMPONENT_FSAL, "Creation mode: 0%o", accessmode);
TakeTokenFSCall();
status =
fsal_internal_handle2fd(p_context, p_parent_directory_handle, &fd,
O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* retrieve directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* Check the user can write in the directory, and check the setgid bit on the directory */
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID)
setgid_bit = 1;
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_create);
/* call to filesystem */
TakeTokenFSCall();
/* create the file.
* O_EXCL=> error if the file already exists */
newfd = openat(fd, p_filename->name, O_CREAT | O_WRONLY | O_TRUNC | O_EXCL, unix_mode);
errsv = errno;
if(newfd < 0)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
/* we no longer need the parent directory open any more */
close(fd);
/* close the file descriptor */
/***
* Previously the file handle was closed here. I don't think that
we need that, but leaving the commented out logic just in case.
rc = close(newfd);
errsv = errno;
if(rc)
{
close(fd);
ReleaseTokenFSCall();
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
*/
/* get a handle for this new fd, doing this directly ensures no race
because we still have the fd open until the end of this function */
status = fsal_internal_fd2handle(newfd, p_object_handle);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(newfd);
ReturnStatus(status, INDEX_FSAL_create);
}
/* the file has been created */
/* chown the file to the current user */
if(p_context->credential.user != geteuid())
{
TakeTokenFSCall();
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
ReleaseTokenFSCall();
if(rc)
{
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_create);
}
}
/* if we got this far successfully, but the file close fails, we've
got a problem, possibly a disk full problem. */
close(newfd);
if(rc)
Return(posix2fsal_error(errno), errno, INDEX_FSAL_create);
/* retrieve file attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, p_object_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_create);
}
/**
* FSAL_link:
* Create a hardlink.
*
* \param target_handle (input):
* Handle of the target object.
* \param dir_handle (input):
* Pointer to the directory handle where
* the hardlink is to be created.
* \param p_link_name (input):
* Pointer to the name of the hardlink to be created.
* \param cred (input):
* Authentication context for the operation (user,...).
* \param accessmode (input):
* Mode for the directory to be created.
* (the umask defined into the FSAL configuration file
* will be applied on it).
* \param 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.
*
* \return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t GPFSFSAL_link(fsal_handle_t * p_target_handle, /* IN */
fsal_handle_t * p_dir_handle, /* IN */
fsal_name_t * p_link_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
int srcfd, dstfd;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : attributes is optional.
*/
if(!p_target_handle || !p_dir_handle || !p_context || !p_context->export_context
|| !p_link_name || !p_link_name->name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_link);
/* Tests if hardlinking is allowed by configuration. */
if(!global_fs_info.link_support)
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_link);
/* get the target handle access by fid */
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_target_handle, &srcfd, O_RDONLY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_link);
/* build the destination path and check permissions on the directory */
TakeTokenFSCall();
status =
fsal_internal_handle2fd(p_context, p_dir_handle, &dstfd, O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(srcfd);
ReturnStatus(status, INDEX_FSAL_link);
}
/* retrieve target directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_dir_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_link);
/* check permission on target directory */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_link);
/* Create the link on the filesystem */
TakeTokenFSCall();
status = fsal_internal_link_at(srcfd, dstfd, p_link_name->name);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(srcfd);
close(dstfd);
ReturnStatus(status, INDEX_FSAL_link);
}
/* optionnaly get attributes */
if(p_attributes)
{
status = GPFSFSAL_getattrs(p_target_handle, p_context, p_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_attributes->asked_attributes);
FSAL_SET_MASK(p_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
close(srcfd);
close(dstfd);
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_link);
}
/**
* @brief create GPFS handle
*
* @param exp_hdl export handle
* @param hdl_desc handle description
* @param handle object handle
* @return status
*
* Does what original FSAL_ExpandHandle did (sort of)
* returns a ref counted handle to be later used in cache_inode etc.
* NOTE! you must release this thing when done with it!
* BEWARE! Thanks to some holes in the *AT syscalls implementation,
* we cannot get an fd on an AF_UNIX socket, nor reliably on block or
* character special devices. Sorry, it just doesn't...
* we could if we had the handle of the dir it is in, but this method
* is for getting handles off the wire for cache entries that have LRU'd.
* Ideas and/or clever hacks are welcome...
*/
fsal_status_t gpfs_create_handle(struct fsal_export *exp_hdl,
struct gsh_buffdesc *hdl_desc,
struct fsal_obj_handle **handle,
struct attrlist *attrs_out)
{
int retval = 0;
fsal_status_t status;
struct gpfs_fsal_obj_handle *hdl;
struct gpfs_file_handle *fh;
struct attrlist attrib;
char *link_content = NULL;
ssize_t retlink = PATH_MAX - 1;
char link_buff[PATH_MAX];
struct fsal_fsid__ fsid;
struct fsal_filesystem *fs;
struct gpfs_filesystem *gpfs_fs;
*handle = NULL; /* poison it first */
if ((hdl_desc->len > (sizeof(struct gpfs_file_handle))))
return fsalstat(ERR_FSAL_FAULT, 0);
fh = alloca(hdl_desc->len);
memcpy(fh, hdl_desc->addr, hdl_desc->len); /* struct aligned copy */
gpfs_extract_fsid(fh, &fsid);
fs = lookup_fsid(&fsid, GPFS_FSID_TYPE);
if (fs == NULL) {
LogInfo(COMPONENT_FSAL,
"Could not find filesystem for fsid=0x%016"PRIx64
".0x%016"PRIx64" from handle",
fsid.major, fsid.minor);
return fsalstat(ERR_FSAL_STALE, ESTALE);
}
if (fs->fsal != exp_hdl->fsal) {
LogInfo(COMPONENT_FSAL,
"Non GPFS filesystem fsid=0x%016"PRIx64
".0x%016"PRIx64" from handle",
fsid.major, fsid.minor);
return fsalstat(ERR_FSAL_STALE, ESTALE);
}
gpfs_fs = fs->private_data;
fsal_prepare_attrs(&attrib, ATTR_GPFS_ALLOC_HANDLE);
if (attrs_out != NULL)
attrib.mask |= attrs_out->mask;
status = GPFSFSAL_getattrs(exp_hdl, gpfs_fs, op_ctx, fh, &attrib);
if (FSAL_IS_ERROR(status))
return status;
if (attrib.type == SYMBOLIC_LINK) { /* I could lazy eval this... */
status = fsal_readlink_by_handle(gpfs_fs->root_fd, fh,
link_buff, &retlink);
if (FSAL_IS_ERROR(status))
return status;
if (retlink < 0 || retlink == PATH_MAX) {
retval = errno;
if (retlink == PATH_MAX)
retval = ENAMETOOLONG;
return fsalstat(posix2fsal_error(retval), retval);
}
link_buff[retlink] = '\0';
link_content = link_buff;
}
hdl = alloc_handle(fh, fs, &attrib, link_content, exp_hdl);
if (attrs_out != NULL) {
/* Copy the attributes to caller, passing ACL ref. */
fsal_copy_attrs(attrs_out, &attrib, true);
} else {
/* Done with the attrs */
fsal_release_attrs(&attrib);
}
*handle = &hdl->obj_handle;
return status;
}
fsal_status_t GPFSFSAL_rename(fsal_handle_t * p_old_parentdir_handle, /* IN */
fsal_name_t * p_old_name, /* IN */
fsal_handle_t * p_new_parentdir_handle, /* IN */
fsal_name_t * p_new_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_attrib_list_t * p_src_dir_attributes, /* [ IN/OUT ] */
fsal_attrib_list_t * p_tgt_dir_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
fsal_status_t status;
struct stat buffstat;
int old_parent_fd, new_parent_fd;
int src_equal_tgt = FALSE;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t src_dir_attrs, tgt_dir_attrs;
/* sanity checks.
* note : src/tgt_dir_attributes are optional.
*/
if(!p_old_parentdir_handle || !p_new_parentdir_handle
|| !p_old_name || !p_new_name || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_rename);
/* Get directory access path by fid */
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_old_parentdir_handle,
&old_parent_fd,
O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_rename);
/* retrieve directory metadata for checking access rights */
src_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_old_parentdir_handle, p_context, &src_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_rename);
/* optimisation : don't do the job twice if source dir = dest dir */
if(!FSAL_handlecmp(p_old_parentdir_handle, p_new_parentdir_handle, &status))
{
new_parent_fd = old_parent_fd;
src_equal_tgt = TRUE;
tgt_dir_attrs = src_dir_attrs;
}
else
{
TakeTokenFSCall();
status = fsal_internal_handle2fd(p_context, p_new_parentdir_handle,
&new_parent_fd,
O_RDONLY | O_DIRECTORY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
{
close(old_parent_fd);
ReturnStatus(status, INDEX_FSAL_rename);
}
/* retrieve destination attrs */
tgt_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_new_parentdir_handle, p_context, &tgt_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_rename);
}
/* check access rights */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_DELETE_CHILD);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &src_dir_attrs);
else
status = fsal_internal_access(p_context, p_old_parentdir_handle, access_mask,
&src_dir_attrs);
if(FSAL_IS_ERROR(status)) {
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
ReturnStatus(status, INDEX_FSAL_rename);
}
if(!src_equal_tgt)
{
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE |
FSAL_ACE_PERM_ADD_SUBDIRECTORY);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &tgt_dir_attrs);
else
status = fsal_internal_access(p_context, p_new_parentdir_handle, access_mask,
&tgt_dir_attrs);
if(FSAL_IS_ERROR(status)) {
close(old_parent_fd);
close(new_parent_fd);
ReturnStatus(status, INDEX_FSAL_rename);
}
}
/* build file paths */
TakeTokenFSCall();
rc = fstatat(old_parent_fd, p_old_name->name, &buffstat, AT_SYMLINK_NOFOLLOW);
errsv = errno;
ReleaseTokenFSCall();
if(rc) {
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_rename);
}
/* Check sticky bits */
/* Sticky bit on the source directory => the user who wants to delete the file must own it or its parent dir */
if((fsal2unix_mode(src_dir_attrs.mode) & S_ISVTX) &&
src_dir_attrs.owner != p_context->credential.user &&
buffstat.st_uid != p_context->credential.user && p_context->credential.user != 0) {
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_rename);
}
/* Sticky bit on the target directory => the user who wants to create the file must own it or its parent dir */
if(fsal2unix_mode(tgt_dir_attrs.mode) & S_ISVTX)
{
TakeTokenFSCall();
rc = fstatat(new_parent_fd, p_new_name->name, &buffstat, AT_SYMLINK_NOFOLLOW);
errsv = errno;
ReleaseTokenFSCall();
if(rc < 0)
{
if(errsv != ENOENT)
{
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_rename);
}
}
else
{
if(tgt_dir_attrs.owner != p_context->credential.user
&& buffstat.st_uid != p_context->credential.user
&& p_context->credential.user != 0)
{
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
Return(ERR_FSAL_ACCESS, 0, INDEX_FSAL_rename);
}
}
}
/*************************************
* Rename the file on the filesystem *
*************************************/
TakeTokenFSCall();
rc = renameat(old_parent_fd, p_old_name->name, new_parent_fd, p_new_name->name);
errsv = errno;
ReleaseTokenFSCall();
close(old_parent_fd);
if (!src_equal_tgt)
close(new_parent_fd);
if(rc)
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_rename);
/***********************
* Fill the attributes *
***********************/
if(p_src_dir_attributes)
{
status = GPFSFSAL_getattrs(p_old_parentdir_handle, p_context, p_src_dir_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_src_dir_attributes->asked_attributes);
FSAL_SET_MASK(p_src_dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
if(p_tgt_dir_attributes)
{
status = GPFSFSAL_getattrs(p_new_parentdir_handle, p_context, p_tgt_dir_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_tgt_dir_attributes->asked_attributes);
FSAL_SET_MASK(p_tgt_dir_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_rename);
}
/**
* @brief Create a symbolic link.
*
* @param dir_hdl Handle of the parent dir where the link is to be created.
* @param linkname Name of the link to be created.
* @param linkcontent Content of the link to be created.
* @param op_ctx Authentication context for the operation (user,...).
* @param accessmode Mode of the link to be created.
* It has no sense in POSIX filesystems.
* @param gpfs_fh Pointer to the handle of the created symlink.
* @param link_attr 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.
*
* @return Major error codes :
* - ERR_FSAL_NO_ERROR (no error)
* - Another error code if an error occured.
*/
fsal_status_t
GPFSFSAL_symlink(struct fsal_obj_handle *dir_hdl, const char *linkname,
const char *linkcontent, const struct req_op_context *op_ctx,
uint32_t accessmode, struct gpfs_file_handle *gpfs_fh,
struct attrlist *link_attr)
{
int rc, errsv;
fsal_status_t status;
int fd;
struct gpfs_fsal_obj_handle *gpfs_hdl;
struct gpfs_filesystem *gpfs_fs;
/* note : link_attr is optional. */
if (!dir_hdl || !op_ctx || !gpfs_fh || !linkname
|| !linkcontent)
return fsalstat(ERR_FSAL_FAULT, 0);
gpfs_hdl =
container_of(dir_hdl, struct gpfs_fsal_obj_handle, obj_handle);
gpfs_fs = dir_hdl->fs->private_data;
/* Tests if symlinking is allowed by configuration. */
if (!op_ctx->fsal_export->exp_ops.
fs_supports(op_ctx->fsal_export,
fso_symlink_support))
return fsalstat(ERR_FSAL_NOTSUPP, 0);
status = fsal_internal_handle2fd(gpfs_fs->root_fd, gpfs_hdl->handle,
&fd, O_RDONLY | O_DIRECTORY, 0);
if (FSAL_IS_ERROR(status))
return status;
/* build symlink path */
/* create the symlink on the filesystem using the credentials
* for proper ownership assignment.
*/
fsal_set_credentials(op_ctx->creds);
rc = symlinkat(linkcontent, fd, linkname);
errsv = errno;
fsal_restore_ganesha_credentials();
if (rc) {
close(fd);
return fsalstat(posix2fsal_error(errsv), errsv);
}
/* now get the associated handle, while there is a race, there is
also a race lower down */
status = fsal_internal_get_handle_at(fd, linkname, gpfs_fh);
if (FSAL_IS_ERROR(status)) {
close(fd);
return status;
}
/* get attributes */
status = GPFSFSAL_getattrs(op_ctx->fsal_export, gpfs_fs,
op_ctx, gpfs_fh,
link_attr);
if (!FSAL_IS_ERROR(status) && link_attr->type != SYMBOLIC_LINK) {
/* We could wind up not failing the creation of the symlink
* and the only way we know is that the object type isn't
* a symlink.
*/
fsal_release_attrs(link_attr);
status = fsalstat(ERR_FSAL_EXIST, 0);
}
close(fd);
return status;
}
/**
* @brief Create a special object in the filesystem.
*
* @param dir_hdl Handle of the parent dir where the file is to be created.
* @param node_name Pointer to the name of the file to be created.
* @param op_ctx Authentication context for the operation (user,...).
* @param accessmode Mode for the file to be created.
* @param node_type Type of file to create.
* @param dev Device id of file to create.
* @param gpfs_fh Pointer to the handle of the created file.
* @param fsal_attr Attributes of the created file.
* @return ERR_FSAL_NO_ERROR on success, error otherwise
*
*/
fsal_status_t
GPFSFSAL_mknode(struct fsal_obj_handle *dir_hdl, const char *node_name,
const struct req_op_context *op_ctx, uint32_t accessmode,
mode_t nodetype, fsal_dev_t *dev,
struct gpfs_file_handle *gpfs_fh, struct attrlist *fsal_attr)
{
fsal_status_t status;
mode_t unix_mode = 0;
dev_t unix_dev = 0;
/* note : fsal_attr is optional. */
if (!dir_hdl || !op_ctx || !node_name)
return fsalstat(ERR_FSAL_FAULT, 0);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~op_ctx->fsal_export->exp_ops.
fs_umask(op_ctx->fsal_export);
switch (nodetype) {
case BLOCK_FILE:
if (!dev)
return fsalstat(ERR_FSAL_FAULT, 0);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 20) | (dev->minor & 0xFFFFF);
break;
case CHARACTER_FILE:
if (!dev)
return fsalstat(ERR_FSAL_FAULT, 0);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 20) | (dev->minor & 0xFFFFF);
break;
case SOCKET_FILE:
unix_mode |= S_IFSOCK;
break;
case FIFO_FILE:
unix_mode |= S_IFIFO;
break;
default:
LogMajor(COMPONENT_FSAL, "Invalid node type in FSAL_mknode: %d",
nodetype);
return fsalstat(ERR_FSAL_INVAL, 0);
}
fsal_set_credentials(op_ctx->creds);
status = fsal_internal_mknode(dir_hdl, node_name, unix_mode, unix_dev,
gpfs_fh, NULL);
fsal_restore_ganesha_credentials();
if (FSAL_IS_ERROR(status))
return status;
/* Fills the attributes */
return GPFSFSAL_getattrs(op_ctx->fsal_export,
dir_hdl->fs->private_data,
op_ctx, gpfs_fh, fsal_attr);
}
/**
* FSAL_mknode:
* Create a special object in the filesystem.
* Not supported upon HPSS.
*
* \return ERR_FSAL_NOTSUPP.
*/
fsal_status_t GPFSFSAL_mknode(fsal_handle_t * parentdir_handle, /* IN */
fsal_name_t * p_node_name, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN */
fsal_nodetype_t nodetype, /* IN */
fsal_dev_t * dev, /* IN */
fsal_handle_t * p_object_handle, /* OUT (handle to the created node) */
fsal_attrib_list_t * node_attributes /* [ IN/OUT ] */
)
{
int rc, errsv;
int setgid_bit = 0;
fsal_status_t status;
int fd, newfd;
mode_t unix_mode = 0;
dev_t unix_dev = 0;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parentdir_handle || !p_context || !p_node_name)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode = fsal2unix_mode(accessmode);
/* Apply umask */
unix_mode = unix_mode & ~global_fs_info.umask;
switch (nodetype)
{
case FSAL_TYPE_BLK:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFBLK;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_CHR:
if(!dev)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_mknode);
unix_mode |= S_IFCHR;
unix_dev = (dev->major << 8) | (dev->minor & 0xFF);
break;
case FSAL_TYPE_SOCK:
unix_mode |= S_IFSOCK;
break;
case FSAL_TYPE_FIFO:
unix_mode |= S_IFIFO;
break;
default:
LogMajor(COMPONENT_FSAL,
"Invalid node type in FSAL_mknode: %d", nodetype);
Return(ERR_FSAL_INVAL, 0, INDEX_FSAL_mknode);
}
/* build the directory path */
status =
fsal_internal_handle2fd(p_context, parentdir_handle, &fd, O_RDONLY | O_DIRECTORY);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* retrieve directory attributes */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(parentdir_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* Check the user can write in the directory, and check weither the setgid bit on the directory */
if(fsal2unix_mode(parent_dir_attrs.mode) & S_ISGID)
setgid_bit = 1;
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_W_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_ADD_FILE);
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_mknode);
/* creates the node, then stats it */
rc = mknodat(fd, p_node_name->name, unix_mode, unix_dev);
errsv = errno;
if(rc)
{
close(fd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
}
/* WARNING:
* After creating the new node, the node name could have been changed.
* This is a race condition. However only root creates new nodes. This
* is an unlikely race condition, but hopefully can be fixed someday.
*/
if(FSAL_IS_ERROR(status = fsal_internal_get_handle_at(fd, p_node_name,
p_object_handle)))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mknode);
}
if(FSAL_IS_ERROR(status = fsal_internal_handle2fd_at(fd,
p_object_handle, &newfd,
O_RDONLY | O_NOFOLLOW)))
{
close(fd);
ReturnStatus(status, INDEX_FSAL_mknode);
}
/* the node has been created */
/* chown the file to the current user/group */
if(p_context->credential.user != geteuid())
{
/* if the setgid_bit was set on the parent directory, do not change the group of the created file, because it's already the parentdir's group */
rc = fchown(newfd, p_context->credential.user,
setgid_bit ? -1 : (int)p_context->credential.group);
errsv = errno;
if(rc)
{
close(fd);
close(newfd);
Return(posix2fsal_error(errsv), errsv, INDEX_FSAL_mknode);
}
}
close(fd);
close(newfd);
/* Fills the attributes if needed */
if(node_attributes)
{
status = GPFSFSAL_getattrs(p_object_handle, p_context, node_attributes);
/* on error, we set a special bit in the mask. */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(node_attributes->asked_attributes);
FSAL_SET_MASK(node_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* Finished */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_mknode);
}
/**
* FSAL_lookup :
* Looks up for an object into a directory.
*
* Note : if parent handle and filename are NULL,
* this retrieves root's handle.
*
* \param parent_directory_handle (input)
* Handle of the parent directory to search the object in.
* \param filename (input)
* The name of the object to find.
* \param p_context (input)
* Authentication context for the operation (user,...).
* \param object_handle (output)
* The handle of the object corresponding to filename.
* \param 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).
*
* \return - ERR_FSAL_NO_ERROR, if no error.
* - Another error code else.
*
*/
fsal_status_t GPFSFSAL_lookup(fsal_handle_t * p_parent_directory_handle, /* IN */
fsal_name_t * p_filename, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_handle_t * object_handle, /* OUT */
fsal_attrib_list_t * p_object_attributes /* [ IN/OUT ] */
)
{
fsal_status_t status;
int parentfd;
fsal_accessflags_t access_mask = 0;
fsal_attrib_list_t parent_dir_attrs;
gpfsfsal_handle_t *p_object_handle = (gpfsfsal_handle_t *)object_handle;
/* sanity checks
* note : object_attributes is optional
* parent_directory_handle may be null for getting FS root.
*/
if(!p_object_handle || !p_context)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_lookup);
/* filename AND parent handle are NULL => lookup "/" */
if((p_parent_directory_handle && !p_filename)
|| (!p_parent_directory_handle && p_filename))
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_lookup);
/* get information about root */
if(!p_parent_directory_handle)
{
gpfsfsal_handle_t *root_handle = &((gpfsfsal_op_context_t *)p_context)->export_context->mount_root_handle;
/* get handle for the mount point */
memcpy(p_object_handle->data.handle.f_handle,
root_handle->data.handle.f_handle,
sizeof(root_handle->data.handle.handle_size));
p_object_handle->data.handle.handle_size = root_handle->data.handle.handle_size;
p_object_handle->data.handle.handle_key_size = root_handle->data.handle.handle_key_size;
/* get attributes, if asked */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(object_handle, p_context, p_object_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* Done */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_lookup);
}
/* retrieve directory attributes */
TakeTokenFSCall();
status =
fsal_internal_handle2fd(p_context, p_parent_directory_handle, &parentfd, O_RDONLY);
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_lookup);
/* get directory metadata */
parent_dir_attrs.asked_attributes = GPFS_SUPPORTED_ATTRIBUTES;
status = GPFSFSAL_getattrs(p_parent_directory_handle, p_context, &parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_lookup);
/* Be careful about junction crossing, symlinks, hardlinks,... */
switch (parent_dir_attrs.type)
{
case FSAL_TYPE_DIR:
// OK
break;
case FSAL_TYPE_JUNCTION:
// This is a junction
Return(ERR_FSAL_XDEV, 0, INDEX_FSAL_lookup);
case FSAL_TYPE_FILE:
case FSAL_TYPE_LNK:
case FSAL_TYPE_XATTR:
// not a directory
Return(ERR_FSAL_NOTDIR, 0, INDEX_FSAL_lookup);
default:
Return(ERR_FSAL_SERVERFAULT, 0, INDEX_FSAL_lookup);
}
// LogFullDebug(COMPONENT_FSAL,
// "lookup of %#llx:%#x:%#x/%s", p_parent_directory_handle->seq,
// p_parent_directory_handle->oid, p_parent_directory_handle->ver,
// p_filename->name);
/* check rights to enter into the directory */
/* Set both mode and ace4 mask */
access_mask = FSAL_MODE_MASK_SET(FSAL_R_OK | FSAL_X_OK) |
FSAL_ACE4_MASK_SET(FSAL_ACE_PERM_LIST_DIR);
if(!p_context->export_context->fe_static_fs_info->accesscheck_support)
status = fsal_internal_testAccess(p_context, access_mask, NULL, &parent_dir_attrs);
else
status = fsal_internal_access(p_context, p_parent_directory_handle, access_mask,
&parent_dir_attrs);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_lookup);
/* get file handle, it it exists */
/* This might be a race, but it's the best we can currently do */
status = fsal_internal_get_handle_at(parentfd, p_filename, object_handle);
close(parentfd);
if(FSAL_IS_ERROR(status))
ReturnStatus(status, INDEX_FSAL_lookup);
/* get object attributes */
if(p_object_attributes)
{
status = GPFSFSAL_getattrs(object_handle, p_context, p_object_attributes);
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(p_object_attributes->asked_attributes);
FSAL_SET_MASK(p_object_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* lookup complete ! */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_lookup);
}
fsal_status_t GPFSFSAL_readdir(gpfsfsal_dir_t * p_dir_descriptor, /* IN */
gpfsfsal_cookie_t start_position, /* IN */
fsal_attrib_mask_t get_attr_mask, /* IN */
fsal_mdsize_t buffersize, /* IN */
fsal_dirent_t * p_pdirent, /* OUT */
gpfsfsal_cookie_t * p_end_position, /* OUT */
fsal_count_t * p_nb_entries, /* OUT */
fsal_boolean_t * p_end_of_dir /* OUT */
)
{
fsal_status_t st;
fsal_count_t max_dir_entries;
fsal_name_t entry_name;
char buff[BUF_SIZE];
struct linux_dirent *dp = NULL;
int bpos = 0;
int tmpfd = 0;
char d_type;
struct stat buffstat;
int rc = 0;
memset(buff, 0, BUF_SIZE);
memset(&entry_name, 0, sizeof(fsal_name_t));
/*****************/
/* sanity checks */
/*****************/
if(!p_dir_descriptor || !p_pdirent || !p_end_position || !p_nb_entries || !p_end_of_dir)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_readdir);
max_dir_entries = (buffersize / sizeof(fsal_dirent_t));
/***************************/
/* seek into the directory */
/***************************/
errno = 0;
if(start_position.data.cookie == 0)
{
//rewinddir(p_dir_descriptor->p_dir);
rc = errno;
}
else
{
//seekdir(p_dir_descriptor->p_dir, start_position.cookie);
rc = errno;
}
if(rc)
Return(posix2fsal_error(rc), rc, INDEX_FSAL_readdir);
/************************/
/* browse the directory */
/************************/
*p_nb_entries = 0;
while(*p_nb_entries < max_dir_entries)
{
/***********************/
/* read the next entry */
/***********************/
TakeTokenFSCall();
rc = syscall(SYS_getdents, p_dir_descriptor->fd, buff, BUF_SIZE);
ReleaseTokenFSCall();
if(rc < 0)
{
rc = errno;
Return(posix2fsal_error(rc), rc, INDEX_FSAL_readdir);
}
/* End of directory */
if(rc == 0)
{
*p_end_of_dir = 1;
break;
}
/***********************************/
/* Get information about the entry */
/***********************************/
for(bpos = 0; bpos < rc;)
{
dp = (struct linux_dirent *)(buff + bpos);
d_type = *(buff + bpos + dp->d_reclen - 1);
/** @todo not used for the moment. Waiting for information on symlink management */
bpos += dp->d_reclen;
/* LogFullDebug(COMPONENT_FSAL,
"\tino=%8ld|%8lx off=%d|%x reclen=%d|%x name=%s|%d", dp->d_ino, dp->d_ino, (int)dp->d_off, (int)dp->d_off,
dp->d_reclen, dp->d_reclen, dp->d_name, (int)dp->d_name[0] ) ; */
if(!(*p_nb_entries < max_dir_entries))
break;
/* skip . and .. */
if(!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
continue;
/* build the full path of the file into "fsalpath */
if(FSAL_IS_ERROR
(st =
FSAL_str2name(dp->d_name, FSAL_MAX_NAME_LEN,
&(p_pdirent[*p_nb_entries].name))))
ReturnStatus(st, INDEX_FSAL_readdir);
d_type = DT_UNKNOWN;
// TODO: there is a race here, because between handle fetch
// and open at things might change. we need to figure out if there
// is another way to open without the pcontext
strncpy(entry_name.name, dp->d_name, sizeof(entry_name.name));
entry_name.len = strlen(entry_name.name);
if(FSAL_IS_ERROR
(st =
fsal_internal_get_handle_at(p_dir_descriptor->fd, &entry_name,
&(p_pdirent[*p_nb_entries].handle))))
ReturnStatus(st, INDEX_FSAL_readdir);
if(FSAL_IS_ERROR
(st =
fsal_internal_handle2fd_at(p_dir_descriptor->fd,
&(p_pdirent[*p_nb_entries].handle), &tmpfd,
O_RDONLY | O_NOFOLLOW)))
{
if(errno != ELOOP) /* ( p_dir_descriptor->fd, dp->d_name) is not a symlink */
ReturnStatus(st, INDEX_FSAL_readdir);
else
d_type = DT_LNK;
}
/* get object handle */
TakeTokenFSCall();
if(d_type != DT_LNK)
{
close(tmpfd);
}
else
{
if(fstatat(p_dir_descriptor->fd, dp->d_name, &buffstat, AT_SYMLINK_NOFOLLOW)
< 0)
{
ReleaseTokenFSCall();
Return(posix2fsal_error(errno), errno, INDEX_FSAL_readdir);
}
p_pdirent[*p_nb_entries].attributes.asked_attributes = get_attr_mask;
st = posix2fsal_attributes(&buffstat, &p_pdirent[*p_nb_entries].attributes);
if(FSAL_IS_ERROR(st))
{
ReleaseTokenFSCall();
FSAL_CLEAR_MASK(p_pdirent[*p_nb_entries].attributes.asked_attributes);
FSAL_SET_MASK(p_pdirent[*p_nb_entries].attributes.asked_attributes,
FSAL_ATTR_RDATTR_ERR);
ReturnStatus(st, INDEX_FSAL_getattrs);
}
}
ReleaseTokenFSCall();
if(FSAL_IS_ERROR(st))
ReturnStatus(st, INDEX_FSAL_readdir);
/************************
* Fills the attributes *
************************/
if(d_type != DT_LNK)
{
p_pdirent[*p_nb_entries].attributes.asked_attributes = get_attr_mask;
st = GPFSFSAL_getattrs(&(p_pdirent[*p_nb_entries].handle),
&p_dir_descriptor->context,
&p_pdirent[*p_nb_entries].attributes);
if(FSAL_IS_ERROR(st))
{
FSAL_CLEAR_MASK(p_pdirent[*p_nb_entries].attributes.asked_attributes);
FSAL_SET_MASK(p_pdirent[*p_nb_entries].attributes.asked_attributes,
FSAL_ATTR_RDATTR_ERR);
}
}
p_pdirent[*p_nb_entries].cookie.data.cookie = dp->d_off;
p_pdirent[*p_nb_entries].nextentry = NULL;
if(*p_nb_entries)
p_pdirent[*p_nb_entries - 1].nextentry = &(p_pdirent[*p_nb_entries]);
(*p_end_position) = p_pdirent[*p_nb_entries].cookie;
(*p_nb_entries)++;
} /* for */
} /* While */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_readdir);
}
/**
* Retrieves the list of extended attributes for an object in the filesystem.
*
* \param p_objecthandle Handle of the object we want to get extended attributes.
* \param cookie index of the next entry to be returned.
* \param p_context pointer to the current security context.
* \param xattrs_tab a table for storing extended attributes list to.
* \param xattrs_tabsize the maximum number of xattr entries that xattrs_tab
* can contain.
* \param p_nb_returned the number of xattr entries actually stored in xattrs_tab.
* \param end_of_list this boolean indicates that the end of xattrs list has been reached.
*/
fsal_status_t GPFSFSAL_ListXAttrs(fsal_handle_t * p_objecthandle, /* IN */
unsigned int cookie, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_xattrent_t * xattrs_tab, /* IN/OUT */
unsigned int xattrs_tabsize, /* IN */
unsigned int *p_nb_returned, /* OUT */
int *end_of_list /* OUT */
)
{
#if 0
int rc;
unsigned int index;
unsigned int out_index;
char object_path[FSAL_MAX_PATH_LEN];
fsal_status_t st;
fsal_attrib_list_t file_attrs;
#endif
/* sanity checks */
if(!p_objecthandle || !p_context || !xattrs_tab || !p_nb_returned || !end_of_list)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_ListXAttrs);
/* @todo: to be implemented */
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_ListXAttrs);
#if 0
/* object attributes we want to retrieve from parent */
file_attrs.asked_attributes = FSAL_ATTR_MODE | FSAL_ATTR_FILEID | FSAL_ATTR_OWNER
| FSAL_ATTR_GROUP | FSAL_ATTR_ATIME | FSAL_ATTR_MTIME
| FSAL_ATTR_CTIME | FSAL_ATTR_CREATION | FSAL_ATTR_CHGTIME | FSAL_ATTR_FSID;
/* don't retrieve unsuipported attributes */
file_attrs.asked_attributes &= global_fs_info.supported_attrs;
st = GPFSFSAL_getattrs(p_objecthandle, p_context, &file_attrs);
if(FSAL_IS_ERROR(st))
Return(st.major, st.minor, INDEX_FSAL_ListXAttrs);
for(index = cookie, out_index = 0;
index < XATTR_COUNT && out_index < xattrs_tabsize; index++)
{
if(do_match_type(xattr_list[index].flags, p_objecthandle->handle.handle_type))
{
/* fills an xattr entry */
xattrs_tab[out_index].xattr_id = index;
FSAL_str2name(xattr_list[index].xattr_name, 0,
&xattrs_tab[out_index].xattr_name);
xattrs_tab[out_index].xattr_cookie = index + 1;
/* set asked attributes (all supported) */
xattrs_tab[out_index].attributes.asked_attributes =
global_fs_info.supported_attrs;
if(file_attributes_to_xattr_attrs
(&file_attrs, &xattrs_tab[out_index].attributes, index))
{
/* set error flag */
xattrs_tab[out_index].attributes.asked_attributes = FSAL_ATTR_RDATTR_ERR;
}
/* next output slot */
out_index++;
}
}
*p_nb_returned = out_index;
*end_of_list = (index == XATTR_COUNT);
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_ListXAttrs);
#endif
}
