718 		struct mptcp_dss_ack_opt dss_ack_opt;  in mptcp_setup_opts()  local
719 		uint8_t dssoptlen = sizeof(dss_ack_opt);  in mptcp_setup_opts()
728 		bzero(&dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
729 		dss_ack_opt.mdss_copt.mdss_kind = TCPOPT_MULTIPATH;  in mptcp_setup_opts()
730 		dss_ack_opt.mdss_copt.mdss_len = dssoptlen;  in mptcp_setup_opts()
731 		dss_ack_opt.mdss_copt.mdss_subtype = MPO_DSS;  in mptcp_setup_opts()
732 		dss_ack_opt.mdss_copt.mdss_flags |= MDSS_A | MDSS_M;  in mptcp_setup_opts()
733 		dss_ack_opt.mdss_ack =  in mptcp_setup_opts()
738 		mptcp_output_getm_dsnmap32(so, off, &dss_ack_opt.mdss_dsn,  in mptcp_setup_opts()
739 		    &dss_ack_opt.mdss_subflow_seqn,  in mptcp_setup_opts()
740 		    &dss_ack_opt.mdss_data_len,  in mptcp_setup_opts()
743 		if ((dss_ack_opt.mdss_data_len == 0) ||  in mptcp_setup_opts()
744 		    (dss_ack_opt.mdss_dsn == 0)) {  in mptcp_setup_opts()
749 			DO_FIN(dss_ack_opt);  in mptcp_setup_opts()
752 		dss_ack_opt.mdss_dsn = htonl(dss_ack_opt.mdss_dsn);  in mptcp_setup_opts()
753 		dss_ack_opt.mdss_subflow_seqn =  in mptcp_setup_opts()
754 		    htonl(dss_ack_opt.mdss_subflow_seqn);  in mptcp_setup_opts()
755 		dss_ack_opt.mdss_data_len = htons(dss_ack_opt.mdss_data_len);  in mptcp_setup_opts()
756 		memcpy(opt + optlen, &dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
758 			*((uint16_t *)(void *)(opt + optlen + sizeof(dss_ack_opt))) = dss_csum;  in mptcp_setup_opts()
775 		struct mptcp_dss32_ack64_opt dss_ack_opt;  in mptcp_setup_opts()  local
776 		uint8_t dssoptlen = sizeof(dss_ack_opt);  in mptcp_setup_opts()
785 		bzero(&dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
786 		dss_ack_opt.mdss_copt.mdss_kind = TCPOPT_MULTIPATH;  in mptcp_setup_opts()
787 		dss_ack_opt.mdss_copt.mdss_len = dssoptlen;  in mptcp_setup_opts()
788 		dss_ack_opt.mdss_copt.mdss_subtype = MPO_DSS;  in mptcp_setup_opts()
789 		dss_ack_opt.mdss_copt.mdss_flags |= MDSS_M | MDSS_A | MDSS_a;  in mptcp_setup_opts()
790 		dss_ack_opt.mdss_ack =  in mptcp_setup_opts()
795 		mptcp_output_getm_dsnmap32(so, off, &dss_ack_opt.mdss_dsn,  in mptcp_setup_opts()
796 		    &dss_ack_opt.mdss_subflow_seqn,  in mptcp_setup_opts()
797 		    &dss_ack_opt.mdss_data_len,  in mptcp_setup_opts()
800 		if ((dss_ack_opt.mdss_data_len == 0) ||  in mptcp_setup_opts()
801 		    (dss_ack_opt.mdss_dsn == 0)) {  in mptcp_setup_opts()
806 			DO_FIN(dss_ack_opt);  in mptcp_setup_opts()
809 		dss_ack_opt.mdss_dsn = htonl(dss_ack_opt.mdss_dsn);  in mptcp_setup_opts()
810 		dss_ack_opt.mdss_subflow_seqn =  in mptcp_setup_opts()
811 		    htonl(dss_ack_opt.mdss_subflow_seqn);  in mptcp_setup_opts()
812 		dss_ack_opt.mdss_data_len = htons(dss_ack_opt.mdss_data_len);  in mptcp_setup_opts()
813 		memcpy(opt + optlen, &dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
815 			*((uint16_t *)(void *)(opt + optlen + sizeof(dss_ack_opt))) = dss_csum;  in mptcp_setup_opts()
832 		struct mptcp_dss_ack_opt dss_ack_opt;  in mptcp_setup_opts()  local
851 		bzero(&dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
862 		dss_ack_opt.mdss_copt.mdss_kind = TCPOPT_MULTIPATH;  in mptcp_setup_opts()
863 		dss_ack_opt.mdss_copt.mdss_len = dssoptlen;  in mptcp_setup_opts()
864 		dss_ack_opt.mdss_copt.mdss_subtype = MPO_DSS;  in mptcp_setup_opts()
865 		dss_ack_opt.mdss_copt.mdss_flags |= MDSS_A | MDSS_M | MDSS_F;  in mptcp_setup_opts()
866 		dss_ack_opt.mdss_ack =  in mptcp_setup_opts()
868 		dss_ack_opt.mdss_dsn =  in mptcp_setup_opts()
870 		dss_ack_opt.mdss_subflow_seqn = 0;  in mptcp_setup_opts()
871 		dss_ack_opt.mdss_data_len = 1;  in mptcp_setup_opts()
872 		dss_ack_opt.mdss_data_len = htons(dss_ack_opt.mdss_data_len);  in mptcp_setup_opts()
873 		memcpy(opt + optlen, &dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
875 			*((uint16_t *)(void *)(opt + optlen + sizeof(dss_ack_opt))) = dss_csum;  in mptcp_setup_opts()