134 				    unsigned int ihl, unsigned int ipl,  in tcf_csum_skb_nextlayer()  argument
138 	int hl = ihl + jhl;  in tcf_csum_skb_nextlayer()
144 		return (void *)(skb_network_header(skb) + ihl);  in tcf_csum_skb_nextlayer()
147 static int tcf_csum_ipv4_icmp(struct sk_buff *skb, unsigned int ihl,  in tcf_csum_ipv4_icmp()  argument
152 	icmph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*icmph));  in tcf_csum_ipv4_icmp()
157 	skb->csum = csum_partial(icmph, ipl - ihl, 0);  in tcf_csum_ipv4_icmp()
166 			      unsigned int ihl, unsigned int ipl)  in tcf_csum_ipv4_igmp()  argument
170 	igmph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*igmph));  in tcf_csum_ipv4_igmp()
175 	skb->csum = csum_partial(igmph, ipl - ihl, 0);  in tcf_csum_ipv4_igmp()
183 static int tcf_csum_ipv6_icmp(struct sk_buff *skb, unsigned int ihl,  in tcf_csum_ipv6_icmp()  argument
189 	icmp6h = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*icmp6h));  in tcf_csum_ipv6_icmp()
195 	skb->csum = csum_partial(icmp6h, ipl - ihl, 0);  in tcf_csum_ipv6_icmp()
197 					      ipl - ihl, IPPROTO_ICMPV6,  in tcf_csum_ipv6_icmp()
205 static int tcf_csum_ipv4_tcp(struct sk_buff *skb, unsigned int ihl,  in tcf_csum_ipv4_tcp()  argument
214 	tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph));  in tcf_csum_ipv4_tcp()
220 	skb->csum = csum_partial(tcph, ipl - ihl, 0);  in tcf_csum_ipv4_tcp()
221 	tcph->check = tcp_v4_check(ipl - ihl,  in tcf_csum_ipv4_tcp()
229 static int tcf_csum_ipv6_tcp(struct sk_buff *skb, unsigned int ihl,  in tcf_csum_ipv6_tcp()  argument
238 	tcph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*tcph));  in tcf_csum_ipv6_tcp()
244 	skb->csum = csum_partial(tcph, ipl - ihl, 0);  in tcf_csum_ipv6_tcp()
246 				      ipl - ihl, IPPROTO_TCP,  in tcf_csum_ipv6_tcp()
254 static int tcf_csum_ipv4_udp(struct sk_buff *skb, unsigned int ihl,  in tcf_csum_ipv4_udp()  argument
271 	udph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*udph));  in tcf_csum_ipv4_udp()
284 				skb->csum = csum_partial(udph, ipl - ihl, 0);  in tcf_csum_ipv4_udp()
285 			else if ((ul >= sizeof(*udph)) && (ul <= ipl - ihl))  in tcf_csum_ipv4_udp()
290 			if (ul != ipl - ihl)  in tcf_csum_ipv4_udp()
310 static int tcf_csum_ipv6_udp(struct sk_buff *skb, unsigned int ihl,  in tcf_csum_ipv6_udp()  argument
327 	udph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*udph));  in tcf_csum_ipv6_udp()
338 			skb->csum = csum_partial(udph, ipl - ihl, 0);  in tcf_csum_ipv6_udp()
340 		else if ((ul >= sizeof(*udph)) && (ul <= ipl - ihl))  in tcf_csum_ipv6_udp()
346 		if (ul != ipl - ihl)  in tcf_csum_ipv6_udp()
365 static int tcf_csum_sctp(struct sk_buff *skb, unsigned int ihl,  in tcf_csum_sctp()  argument
373 	sctph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*sctph));  in tcf_csum_sctp()
378 					     skb_network_offset(skb) + ihl);  in tcf_csum_sctp()
399 			if (!tcf_csum_ipv4_icmp(skb, iph->ihl * 4,  in tcf_csum_ipv4()
405 			if (!tcf_csum_ipv4_igmp(skb, iph->ihl * 4,  in tcf_csum_ipv4()
411 			if (!tcf_csum_ipv4_tcp(skb, iph->ihl * 4,  in tcf_csum_ipv4()
417 			if (!tcf_csum_ipv4_udp(skb, iph->ihl * 4,  in tcf_csum_ipv4()
423 			if (!tcf_csum_ipv4_udp(skb, iph->ihl * 4,  in tcf_csum_ipv4()
429 		    !tcf_csum_sctp(skb, iph->ihl * 4, ntohs(iph->tot_len)))  in tcf_csum_ipv4()