bpf/progs/test_xdp_noinline.c

233 bool parse_udp(void *data, void *data_end,
242 	if (udp + 1 > data_end)
255 bool parse_tcp(void *data, void *data_end,
264 	if (tcp + 1 > data_end)
287 	void *data_end;
293 	data_end = (void *)(long)xdp->data_end;
297 	if (new_eth + 1 > data_end ||
298 	    old_eth + 1 > data_end || ip6h + 1 > data_end)
333 	void *data_end;
341 	data_end = (void *)(long)xdp->data_end;
345 	if (new_eth + 1 > data_end ||
346 	    old_eth + 1 > data_end || iph + 1 > data_end)
376 int swap_mac_and_send(void *data, void *data_end)
389 int send_icmp_reply(void *data, void *data_end)
399 	     + sizeof(struct iphdr) + sizeof(struct icmphdr) > data_end)
417 	return swap_mac_and_send(data, data_end);
421 int send_icmp6_reply(void *data, void *data_end)
429 	     + sizeof(struct ipv6hdr) + sizeof(struct icmp6hdr) > data_end)
441 	return swap_mac_and_send(data, data_end);
445 int parse_icmpv6(void *data, void *data_end, __u64 off,
452 	if (icmp_hdr + 1 > data_end)
455 		return send_icmp6_reply(data, data_end);
460 	if (ip6h + 1 > data_end)
470 int parse_icmp(void *data, void *data_end, __u64 off,
477 	if (icmp_hdr + 1 > data_end)
480 		return send_icmp_reply(data, data_end);
485 	if (iph + 1 > data_end)
592 				 void *data_end)
599 	if (ip6h + 1 > data_end)
609 		action = parse_icmpv6(data, data_end, off, pckt);
623 				 void *data_end)
629 	if (iph + 1 > data_end)
640 		action = parse_icmp(data, data_end, off, pckt);
651 static int process_packet(void *data, __u64 off, void *data_end,
672 					       &pkt_bytes, data, data_end);
675 					       &pkt_bytes, data, data_end);
680 		if (!parse_tcp(data, data_end, is_ipv6, &pckt))
683 		if (!parse_udp(data, data_end, is_ipv6, &pckt))
704 	if (data_end - data > 1400)
751 	data_end = (void *)(long)xdp->data_end;
752 	if (data + 4 > data_end)
762 	void *data_end = (void *)(long)ctx->data_end;
768 	if (data + nh_off > data_end)
772 		return process_packet(data, nh_off, data_end, 0, ctx);
781 	void *data_end = (void *)(long)ctx->data_end;
787 	if (data + nh_off > data_end)
791 		return process_packet(data, nh_off, data_end, 1, ctx);