fsal_status_t tank_getextattr_value_by_id(struct fsal_obj_handle *obj_hdl,
unsigned int xattr_id,
caddr_t buffer_addr,
size_t buffer_size,
size_t *p_output_size)
{
struct zfs_fsal_obj_handle *obj_handle = NULL;
int retval = -1;
creden_t cred;
obj_handle =
container_of(obj_hdl, struct zfs_fsal_obj_handle, obj_handle);
/* sanity checks */
if (!obj_hdl || !p_output_size || !buffer_addr)
return fsalstat(ERR_FSAL_FAULT, 0);
cred.uid = op_ctx->creds->caller_uid;
cred.gid = op_ctx->creds->caller_gid;
/* check that this index match the type of entry */
if ((xattr_id < XATTR_COUNT)
&& !do_match_type(xattr_list[xattr_id].flags, obj_hdl->type)) {
return fsalstat(ERR_FSAL_INVAL, 0);
} else if (xattr_id >= XATTR_COUNT) {
char attr_name[MAXPATHLEN];
/* get the name for this attr */
retval = xattr_id_to_name(ZFSFSAL_GetVFS(obj_handle->handle),
&cred,
obj_handle->handle->zfs_handle,
xattr_id,
attr_name);
if (retval)
return fsalstat(retval, 0);
retval = libzfswrap_getxattr(ZFSFSAL_GetVFS(obj_handle->handle),
&cred,
obj_handle->handle->zfs_handle,
attr_name, &buffer_addr);
if (retval)
return fsalstat(posix2fsal_error(retval), retval);
/* the xattr value can be a binary, or a string.
* trying to determine its type...
*/
*p_output_size = strnlen(buffer_addr, buffer_size);
xattr_format_value(buffer_addr, p_output_size, buffer_size);
return fsalstat(ERR_FSAL_NO_ERROR, 0);
} else { /* built-in attr */
/* get the value */
retval = xattr_list[xattr_id].get_func(obj_hdl, buffer_addr,
buffer_size,
p_output_size,
xattr_list[xattr_id]
.arg);
return fsalstat(retval, 0);
}
}
fsal_status_t tank_getextattr_value_by_name(struct fsal_obj_handle *obj_hdl,
const char *xattr_name,
caddr_t buffer_addr,
size_t buffer_size,
size_t *p_output_size)
{
struct zfs_fsal_obj_handle *obj_handle = NULL;
unsigned int index;
creden_t cred;
int retval = 0;
obj_handle =
container_of(obj_hdl, struct zfs_fsal_obj_handle, obj_handle);
/* sanity checks */
if (!obj_hdl || !p_output_size || !buffer_addr || !xattr_name)
return fsalstat(ERR_FSAL_FAULT, 0);
cred.uid = op_ctx->creds->caller_uid;
cred.gid = op_ctx->creds->caller_gid;
/* look for this name */
for (index = 0; index < XATTR_COUNT; index++) {
if (do_match_type(xattr_list[index].flags,
obj_hdl->attributes.type)
&& !strcmp(xattr_list[index].xattr_name,
xattr_name)) {
return tank_getextattr_value_by_id(obj_hdl,
index, buffer_addr,
buffer_size,
p_output_size);
}
}
/* is it an xattr? */
retval = libzfswrap_getxattr(ZFSFSAL_GetVFS(obj_handle->handle),
&cred,
obj_handle->handle->zfs_handle,
xattr_name,
&buffer_addr);
if (retval)
return fsalstat(posix2fsal_error(retval), retval);
/* the xattr value can be a binary, or a string.
* trying to determine its type...
*/
*p_output_size = strnlen(buffer_addr, buffer_size);
xattr_format_value(buffer_addr, p_output_size, buffer_size);
return fsalstat(ERR_FSAL_NO_ERROR, 0);
}
