Function nat64lsn_config

tools/ipfw/nat64lsn.c:546–650

* Configures existing nat64lsn instance * ipfw nat64lsn config * Request: [ ipfw_obj_header ipfw_nat64lsn_cfg ] */

 * Request: [ ipfw_obj_header ipfw_nat64lsn_cfg ]
 */
static void
nat64lsn_config(const char *name, uint8_t set, int ac, char **av)
{
	char buf[sizeof(ipfw_obj_header) + sizeof(ipfw_nat64lsn_cfg)];
	ipfw_nat64lsn_cfg *cfg;
	ipfw_obj_header *oh;
	size_t sz;
	char *opt;
	int tcmd;

	if (ac == 0)
		errx(EX_USAGE, "config options required");
	memset(&buf, 0, sizeof(buf));
	oh = (ipfw_obj_header *)buf;
	cfg = (ipfw_nat64lsn_cfg *)(oh + 1);
	sz = sizeof(buf);

	nat64lsn_fill_ntlv(&oh->ntlv, name, set);
	if (do_get3(IP_FW_NAT64LSN_CONFIG, &oh->opheader, &sz) != 0)
		err(EX_OSERR, "failed to get config for instance %s", name);

	while (ac > 0) {
		tcmd = get_token(nat64newcmds, *av, "option");
		opt = *av;
		ac--; av++;

		switch (tcmd) {
		case TOK_MAX_PORTS:
			NEED1("Max per-user ports required");
			cfg->max_ports = nat64lsn_parse_int(*av, opt);
			ac--; av++;
			break;
		case TOK_JMAXLEN:
			NEED1("job queue length required");
			cfg->jmaxlen = nat64lsn_parse_int(*av, opt);
			ac--; av++;
			break;
		case TOK_HOST_DEL_AGE:
			NEED1("host delete delay required");
			cfg->nh_delete_delay = (uint16_t)nat64lsn_parse_int(
			    *av, opt);
			ac--; av++;
			break;
		case TOK_PG_DEL_AGE:
			NEED1("portgroup delete delay required");
			cfg->pg_delete_delay = (uint16_t)nat64lsn_parse_int(
			    *av, opt);
			ac--; av++;
			break;
		case TOK_TCP_SYN_AGE:
			NEED1("tcp syn age required");
			cfg->st_syn_ttl = (uint16_t)nat64lsn_parse_int(
			    *av, opt);
			ac--; av++;
			break;
		case TOK_TCP_CLOSE_AGE:
			NEED1("tcp close age required");
			cfg->st_close_ttl = (uint16_t)nat64lsn_parse_int(