442 		to->tcph = from->tcph ?  in ClonePacketCtx()
444 		if (to->tcph)  in ClonePacketCtx()
446 			to->payload = from->tcph ?  in ClonePacketCtx()
447 				((uint8_t *)(to->tcph) + (to->tcph->doff<<2)) : NULL;  in ClonePacketCtx()
575 	if (!(pkt->iph) || !(pkt->tcph)) {  in mtcp_sendpkt()
583 				   pkt->iph->saddr, pkt->tcph->source,  in mtcp_sendpkt()
584 				   pkt->iph->daddr, pkt->tcph->dest,  in mtcp_sendpkt()
585 				   htonl(pkt->tcph->seq), htonl(pkt->tcph->ack_seq),  in mtcp_sendpkt()
586 				   ntohs(pkt->tcph->window), TCP_FLAG_ACK,  in mtcp_sendpkt()
939 	struct tcphdr *tcph;  in mtcp_setlastpkt()  local
1062 				cur_pkt_ctx->p.tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1063 				cur_pkt_ctx->p.payload = (uint8_t *)cur_pkt_ctx->p.tcph +   in mtcp_setlastpkt()
1064 					(cur_pkt_ctx->p.tcph->doff<<2);  in mtcp_setlastpkt()
1067 				cur_pkt_ctx->p.tcph = NULL;  in mtcp_setlastpkt()
1082 				cur_pkt_ctx->p.tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1083 				cur_pkt_ctx->p.payload = (uint8_t *)cur_pkt_ctx->p.tcph +   in mtcp_setlastpkt()
1084 					(cur_pkt_ctx->p.tcph->doff<<2);  in mtcp_setlastpkt()
1087 				cur_pkt_ctx->p.tcph = NULL;  in mtcp_setlastpkt()
1100 		    (tcph=(struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2))) == NULL) {  in mtcp_setlastpkt()
1108 			if (offset + datalen > (tcph->doff<<2)) {  in mtcp_setlastpkt()
1115 			memcpy((uint8_t *)tcph + offset, data, datalen);  in mtcp_setlastpkt()
1117 			cur_pkt_ctx->p.seq = ntohl(tcph->seq);  in mtcp_setlastpkt()
1119 			cur_pkt_ctx->p.ack_seq = ntohl(tcph->ack_seq);  in mtcp_setlastpkt()
1121 			cur_pkt_ctx->p.window = ntohs(tcph->window);  in mtcp_setlastpkt()
1127 			memmove((uint8_t *)tcph + offset,  in mtcp_setlastpkt()
1128 				(uint8_t *)tcph + offset + datalen,   in mtcp_setlastpkt()
1129 				cur_pkt_ctx->p.payloadlen + (tcph->doff<<2)   in mtcp_setlastpkt()
1132 			cur_pkt_ctx->p.payload = (uint8_t *)tcph + (tcph->doff<<2);  in mtcp_setlastpkt()
1134 			memmove((uint8_t *)tcph + offset + datalen,  in mtcp_setlastpkt()
1135 				(uint8_t *)tcph + offset + 1,   in mtcp_setlastpkt()
1136 				cur_pkt_ctx->p.payloadlen + (tcph->doff<<2)   in mtcp_setlastpkt()
1138 			memcpy((uint8_t *)tcph + offset, data, datalen);  in mtcp_setlastpkt()
1140 			cur_pkt_ctx->p.payload = (uint8_t *)tcph + (tcph->doff<<2);  in mtcp_setlastpkt()
1144 		tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1145 		payload = (uint8_t *)tcph + (tcph->doff<<2);  in mtcp_setlastpkt()
1148 			    (iph->ihl<<2) - (tcph->doff<<2)) {  in mtcp_setlastpkt()
1164 				(tcph->doff<<2) - (iph->ihl<<2);  in mtcp_setlastpkt()
1171 				(tcph->doff<<2) - (iph->ihl<<2);  in mtcp_setlastpkt()
1189 		tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1190 		tcph->check = 0;  in mtcp_setlastpkt()
1191 		tcph->check = TCPCalcChecksum((uint16_t *)tcph,  in mtcp_setlastpkt()