438 	to->iph = from->iph ?  in ClonePacketCtx()
440 	if (to->iph) {  in ClonePacketCtx()
443 			(struct tcphdr *)(((uint8_t *)(to->iph)) + (to->iph->ihl<<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()
590 				   pkt->iph->id, pkt->in_ifidx);  in mtcp_sendpkt()
938 	struct iphdr *iph;  in mtcp_setlastpkt()  local
1040 		    (iph=(struct iphdr *)(cur_pkt_ctx->p.ethh + 1)) == NULL) {  in mtcp_setlastpkt()
1046 			if (offset + datalen > (iph->ihl<<2)) {  in mtcp_setlastpkt()
1053 			memcpy((uint8_t *)iph + offset, data, datalen);  in mtcp_setlastpkt()
1056 			memmove((uint8_t *)iph + offset,  in mtcp_setlastpkt()
1057 				(uint8_t *)iph + offset + datalen,   in mtcp_setlastpkt()
1061 			if (iph->protocol == IPPROTO_TCP) {  in mtcp_setlastpkt()
1062 				cur_pkt_ctx->p.tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1070 			cur_pkt_ctx->p.ip_len = ntohs(iph->tot_len);  in mtcp_setlastpkt()
1074 			memmove((uint8_t *)iph + offset + datalen,  in mtcp_setlastpkt()
1075 				(uint8_t *)iph + offset + 1,  in mtcp_setlastpkt()
1077 			memcpy((uint8_t *)iph + offset,  in mtcp_setlastpkt()
1081 			if (iph->protocol == IPPROTO_TCP) {  in mtcp_setlastpkt()
1082 				cur_pkt_ctx->p.tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1090 			cur_pkt_ctx->p.ip_len = ntohs(iph->tot_len);  in mtcp_setlastpkt()
1097 		iph = (struct iphdr *)(cur_pkt_ctx->p.ethh + 1);  in mtcp_setlastpkt()
1098 		if (iph == NULL ||  in mtcp_setlastpkt()
1099 		    iph->protocol != IPPROTO_TCP ||  in mtcp_setlastpkt()
1100 		    (tcph=(struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2))) == NULL) {  in mtcp_setlastpkt()
1143 		iph = (struct iphdr *)(cur_pkt_ctx->p.ethh + 1);  in mtcp_setlastpkt()
1144 		tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1147 			if (offset + datalen > ntohs(iph->tot_len) -  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()
1181 		iph = (struct iphdr *)(cur_pkt_ctx->p.ethh + 1);  in mtcp_setlastpkt()
1182 		iph->check = 0;  in mtcp_setlastpkt()
1183 		iph->check = ip_fast_csum(iph, iph->ihl);  in mtcp_setlastpkt()
1188 		iph = (struct iphdr *)(cur_pkt_ctx->p.ethh + 1);  in mtcp_setlastpkt()
1189 		tcph = (struct tcphdr *)((uint8_t *)iph + (iph->ihl<<2));  in mtcp_setlastpkt()
1192 					      ntohs(iph->tot_len) - (iph->ihl<<2),  in mtcp_setlastpkt()
1193 					      iph->saddr, iph->daddr);  in mtcp_setlastpkt()