169 		struct in6_addr daddr;  in tcp_checksum()  member
175 		struct in_addr daddr;  in tcp_checksum()  member
184 		if (inet_pton(AF_INET6, addr6_dst, &ph6.daddr) != 1)  in tcp_checksum()
193 		if (inet_pton(AF_INET, addr4_dst, &ph4.daddr) != 1)  in tcp_checksum()
235 		if (inet_pton(AF_INET6, addr6_dst, &ip6h->daddr) != 1)  in fill_networklayer()
249 		if (inet_pton(AF_INET, addr4_dst, &iph->daddr) != 1)  in fill_networklayer()
274 static void write_packet(int fd, char *buf, int len, struct sockaddr_ll *daddr)  in write_packet()  argument
278 	ret = sendto(fd, buf, len, 0, (struct sockaddr *)daddr, sizeof(*daddr));  in write_packet()
297 static void send_flags(int fd, struct sockaddr_ll *daddr, int psh, int syn,  in send_flags()  argument
321 			write_packet(fd, flag_buf, pkt_size, daddr);  in send_flags()
325 		write_packet(fd, buf, total_hdr_len + PAYLOAD_LEN, daddr);  in send_flags()
332 static void send_data_pkts(int fd, struct sockaddr_ll *daddr,  in send_data_pkts()  argument
338 	write_packet(fd, buf, total_hdr_len + payload_len1, daddr);  in send_data_pkts()
340 	write_packet(fd, buf, total_hdr_len + payload_len2, daddr);  in send_data_pkts()
346 static void send_large(int fd, struct sockaddr_ll *daddr, int remainder)  in send_large()  argument
359 		write_packet(fd, pkts[i], total_hdr_len + MSS, daddr);  in send_large()
360 	write_packet(fd, last, total_hdr_len + remainder, daddr);  in send_large()
361 	write_packet(fd, new_seg, total_hdr_len + remainder, daddr);  in send_large()
365 static void send_ack(int fd, struct sockaddr_ll *daddr)  in send_ack()  argument
370 	write_packet(fd, buf, total_hdr_len, daddr);  in send_ack()
371 	write_packet(fd, buf, total_hdr_len, daddr);  in send_ack()
373 	write_packet(fd, buf, total_hdr_len, daddr);  in send_ack()
469 static void send_changed_checksum(int fd, struct sockaddr_ll *daddr)  in send_changed_checksum()  argument
476 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_checksum()
480 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_checksum()
484 static void send_changed_seq(int fd, struct sockaddr_ll *daddr)  in send_changed_seq()  argument
491 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_seq()
497 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_seq()
503 static void send_changed_ts(int fd, struct sockaddr_ll *daddr)  in send_changed_ts()  argument
511 	write_packet(fd, extpkt, pkt_size, daddr);  in send_changed_ts()
515 	write_packet(fd, extpkt, pkt_size, daddr);  in send_changed_ts()
519 	write_packet(fd, extpkt, pkt_size, daddr);  in send_changed_ts()
523 	write_packet(fd, extpkt, pkt_size, daddr);  in send_changed_ts()
527 	write_packet(fd, extpkt, pkt_size, daddr);  in send_changed_ts()
531 static void send_diff_opt(int fd, struct sockaddr_ll *daddr)  in send_diff_opt()  argument
541 	write_packet(fd, extpkt1, extpkt1_size, daddr);  in send_diff_opt()
545 	write_packet(fd, extpkt1, extpkt1_size, daddr);  in send_diff_opt()
551 	write_packet(fd, extpkt2, extpkt2_size, daddr);  in send_diff_opt()
580 static void send_ip_options(int fd, struct sockaddr_ll *daddr)  in send_ip_options()  argument
588 	write_packet(fd, buf, total_hdr_len + PAYLOAD_LEN, daddr);  in send_ip_options()
592 	write_packet(fd, optpkt, pkt_size, daddr);  in send_ip_options()
595 	write_packet(fd, buf, total_hdr_len + PAYLOAD_LEN, daddr);  in send_ip_options()
599 static void send_fragment4(int fd, struct sockaddr_ll *daddr)  in send_fragment4()  argument
606 	write_packet(fd, buf, pkt_size, daddr);  in send_fragment4()
620 	write_packet(fd, buf, pkt_size, daddr);  in send_fragment4()
624 static void send_changed_ttl(int fd, struct sockaddr_ll *daddr)  in send_changed_ttl()  argument
631 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_ttl()
637 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_ttl()
641 static void send_changed_tos(int fd, struct sockaddr_ll *daddr)  in send_changed_tos()  argument
649 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_tos()
659 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_tos()
663 static void send_changed_ECN(int fd, struct sockaddr_ll *daddr)  in send_changed_ECN()  argument
670 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_ECN()
680 	write_packet(fd, buf, pkt_size, daddr);  in send_changed_ECN()
684 static void send_fragment6(int fd, struct sockaddr_ll *daddr)  in send_fragment6()  argument
698 		write_packet(fd, buf, bufpkt_len, daddr);  in send_fragment6()
711 	write_packet(fd, extpkt, extpkt_len, daddr);  in send_fragment6()
714 	write_packet(fd, buf, bufpkt_len, daddr);  in send_fragment6()
719 	struct sockaddr_ll daddr = {};  in bind_packetsocket()  local
721 	daddr.sll_family = AF_PACKET;  in bind_packetsocket()
722 	daddr.sll_protocol = ethhdr_proto;  in bind_packetsocket()
723 	daddr.sll_ifindex = if_nametoindex(ifname);  in bind_packetsocket()
724 	if (daddr.sll_ifindex == 0)  in bind_packetsocket()
727 	if (bind(fd, (void *)&daddr, sizeof(daddr)) < 0)  in bind_packetsocket()
806 	struct sockaddr_ll daddr = {};  in gro_sender()  local
813 	memset(&daddr, 0, sizeof(daddr));  in gro_sender()
814 	daddr.sll_ifindex = if_nametoindex(ifname);  in gro_sender()
815 	if (daddr.sll_ifindex == 0)  in gro_sender()
817 	daddr.sll_family = AF_PACKET;  in gro_sender()
818 	memcpy(daddr.sll_addr, dst_mac, ETH_ALEN);  in gro_sender()
819 	daddr.sll_halen = ETH_ALEN;  in gro_sender()
823 		send_data_pkts(txfd, &daddr, PAYLOAD_LEN, PAYLOAD_LEN);  in gro_sender()
824 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
826 		send_data_pkts(txfd, &daddr, PAYLOAD_LEN, PAYLOAD_LEN / 2);  in gro_sender()
827 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
829 		send_data_pkts(txfd, &daddr, PAYLOAD_LEN / 2, PAYLOAD_LEN);  in gro_sender()
830 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
832 		send_ack(txfd, &daddr);  in gro_sender()
833 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
835 		send_flags(txfd, &daddr, 1, 0, 0, 0);  in gro_sender()
836 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
838 		send_flags(txfd, &daddr, 0, 1, 0, 0);  in gro_sender()
839 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
841 		send_flags(txfd, &daddr, 0, 0, 1, 0);  in gro_sender()
842 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
844 		send_flags(txfd, &daddr, 0, 0, 0, 1);  in gro_sender()
845 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
847 		send_changed_checksum(txfd, &daddr);  in gro_sender()
848 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
850 		send_changed_seq(txfd, &daddr);  in gro_sender()
851 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
853 		send_changed_ts(txfd, &daddr);  in gro_sender()
854 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
856 		send_diff_opt(txfd, &daddr);  in gro_sender()
857 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
859 		send_changed_ECN(txfd, &daddr);  in gro_sender()
860 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
862 		send_changed_tos(txfd, &daddr);  in gro_sender()
863 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
870 			send_changed_ttl(txfd, &daddr);  in gro_sender()
871 			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
874 			send_ip_options(txfd, &daddr);  in gro_sender()
876 			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
879 			send_fragment4(txfd, &daddr);  in gro_sender()
881 			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
883 			send_fragment6(txfd, &daddr);  in gro_sender()
884 			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
894 		send_large(txfd, &daddr, remainder);  in gro_sender()
895 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()
897 		send_large(txfd, &daddr, remainder + 1);  in gro_sender()
898 		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);  in gro_sender()