389 nd6_option_init(void *opt, int icmp6len, union nd_opts *ndopts)  in nd6_option_init()  argument
392 	bzero(ndopts, sizeof(*ndopts));  in nd6_option_init()
393 	ndopts->nd_opts_search = (struct nd_opt_hdr *)opt;  in nd6_option_init()
394 	ndopts->nd_opts_last  in nd6_option_init()
398 		ndopts->nd_opts_done = 1;  in nd6_option_init()
399 		ndopts->nd_opts_search = NULL;  in nd6_option_init()
407 nd6_option(union nd_opts *ndopts)  in nd6_option()  argument
412 	KASSERT(ndopts != NULL, ("%s: ndopts == NULL", __func__));  in nd6_option()
413 	KASSERT(ndopts->nd_opts_last != NULL, ("%s: uninitialized ndopts",  in nd6_option()
415 	if (ndopts->nd_opts_search == NULL)  in nd6_option()
417 	if (ndopts->nd_opts_done)  in nd6_option()
420 	nd_opt = ndopts->nd_opts_search;  in nd6_option()
423 	if ((caddr_t)&nd_opt->nd_opt_len >= (caddr_t)ndopts->nd_opts_last) {  in nd6_option()
424 		bzero(ndopts, sizeof(*ndopts));  in nd6_option()
434 		bzero(ndopts, sizeof(*ndopts));  in nd6_option()
438 	ndopts->nd_opts_search = (struct nd_opt_hdr *)((caddr_t)nd_opt + olen);  in nd6_option()
439 	if (ndopts->nd_opts_search > ndopts->nd_opts_last) {  in nd6_option()
441 		bzero(ndopts, sizeof(*ndopts));  in nd6_option()
443 	} else if (ndopts->nd_opts_search == ndopts->nd_opts_last) {  in nd6_option()
445 		ndopts->nd_opts_done = 1;  in nd6_option()
446 		ndopts->nd_opts_search = NULL;  in nd6_option()
457 nd6_options(union nd_opts *ndopts)  in nd6_options()  argument
462 	KASSERT(ndopts != NULL, ("%s: ndopts == NULL", __func__));  in nd6_options()
463 	KASSERT(ndopts->nd_opts_last != NULL, ("%s: uninitialized ndopts",  in nd6_options()
465 	if (ndopts->nd_opts_search == NULL)  in nd6_options()
469 		nd_opt = nd6_option(ndopts);  in nd6_options()
470 		if (nd_opt == NULL && ndopts->nd_opts_last == NULL) {  in nd6_options()
476 			bzero(ndopts, sizeof(*ndopts));  in nd6_options()
489 			if (ndopts->nd_opt_array[nd_opt->nd_opt_type]) {  in nd6_options()
495 				ndopts->nd_opt_array[nd_opt->nd_opt_type]  in nd6_options()
500 			if (ndopts->nd_opt_array[nd_opt->nd_opt_type] == 0) {  in nd6_options()
501 				ndopts->nd_opt_array[nd_opt->nd_opt_type]  in nd6_options()
504 			ndopts->nd_opts_pi_end =  in nd6_options()
533 		if (ndopts->nd_opts_done)  in nd6_options()