fsal_status_t ZFSFSAL_symlink(zfsfsal_handle_t * parent_directory_handle, /* IN */
fsal_name_t * p_linkname, /* IN */
fsal_path_t * p_linkcontent, /* IN */
zfsfsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN (ignored) */
zfsfsal_handle_t * link_handle, /* OUT */
fsal_attrib_list_t * link_attributes /* [ IN/OUT ] */
)
{
int rc;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parent_directory_handle ||
!p_context || !link_handle || !p_linkname || !p_linkcontent)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_symlink);
/* Tests if symlinking is allowed by configuration. */
if(!global_fs_info.symlink_support)
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_symlink);
TakeTokenFSCall();
inogen_t object;
rc = libzfswrap_symlink(p_context->export_context->p_vfs, &p_context->user_credential.cred,
parent_directory_handle->data.zfs_handle, p_linkname->name,
p_linkcontent->path, &object);
ReleaseTokenFSCall();
/* >> convert status and return on error << */
/* >> set output handle << */
link_handle->data.zfs_handle = object;
link_handle->data.type = FSAL_TYPE_LNK;
if(link_attributes)
{
fsal_status_t status = ZFSFSAL_getattrs(link_handle, p_context, link_attributes);
/* On error, we set a flag in the returned attributes */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(link_attributes->asked_attributes);
FSAL_SET_MASK(link_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_symlink);
}
fsal_status_t ZFSFSAL_symlink(fsal_handle_t * parent_directory_handle, /* IN */
fsal_name_t * p_linkname, /* IN */
fsal_path_t * p_linkcontent, /* IN */
fsal_op_context_t * p_context, /* IN */
fsal_accessmode_t accessmode, /* IN (ignored) */
fsal_handle_t * link_handle, /* OUT */
fsal_attrib_list_t * link_attributes /* [ IN/OUT ] */
)
{
creden_t cred;
/* sanity checks.
* note : link_attributes is optional.
*/
if(!parent_directory_handle ||
!p_context || !link_handle || !p_linkname || !p_linkcontent)
Return(ERR_FSAL_FAULT, 0, INDEX_FSAL_symlink);
/* Tests if symlinking is allowed by configuration. */
if(!global_fs_info.symlink_support)
Return(ERR_FSAL_NOTSUPP, 0, INDEX_FSAL_symlink);
/* Hook to prevent creation of anything inside the snapshot */
if(((zfsfsal_handle_t *)parent_directory_handle)->data.i_snap != 0)
{
LogDebug(COMPONENT_FSAL, "Trying to create a symlink inside a snapshot");
Return(ERR_FSAL_ROFS, 0, INDEX_FSAL_symlink);
}
cred.uid = p_context->credential.user;
cred.gid = p_context->credential.group;
TakeTokenFSCall();
inogen_t object;
libzfswrap_symlink(((zfsfsal_op_context_t *)p_context)->export_context->p_vfs,
&cred,
((zfsfsal_handle_t *)parent_directory_handle)->data.zfs_handle,
p_linkname->name,
p_linkcontent->path, &object);
ReleaseTokenFSCall();
/* >> convert status and return on error << */
/* >> set output handle << */
((zfsfsal_handle_t *)link_handle)->data.zfs_handle = object;
((zfsfsal_handle_t *)link_handle)->data.type = FSAL_TYPE_LNK;
((zfsfsal_handle_t *)link_handle)->data.i_snap = 0;
if(link_attributes)
{
fsal_status_t status = ZFSFSAL_getattrs(link_handle, p_context, link_attributes);
/* On error, we set a flag in the returned attributes */
if(FSAL_IS_ERROR(status))
{
FSAL_CLEAR_MASK(link_attributes->asked_attributes);
FSAL_SET_MASK(link_attributes->asked_attributes, FSAL_ATTR_RDATTR_ERR);
}
}
/* OK */
Return(ERR_FSAL_NO_ERROR, 0, INDEX_FSAL_symlink);
}
