int(*unlink) (void *workstation, surf_file_t fd);
surf_action_t(*ls) (void *workstation, const char* mount, const char *path);
size_t (*get_size) (void *workstation, surf_file_t fd);
+ xbt_dynar_t (*get_info) (void *workstation, surf_file_t fd);
int (*link_shared) (const void *link);
xbt_dict_t(*get_properties) (const void *resource);