contrib/tcpdump/print-dccp.c

63 static inline u_int dccp_csum_coverage(const struct dccp_hdr* dh, u_int len)
67 	if (DCCPH_CSCOV(dh) == 0)
69 	cov = (dh->dccph_doff + DCCPH_CSCOV(dh) - 1) * sizeof(u_int32_t);
74 	const struct dccp_hdr *dh, u_int len)
76 	return nextproto4_cksum(ip, (const u_int8_t *)(void *)dh,
77 	    dccp_csum_coverage(dh, len), IPPROTO_DCCP);
81 static int dccp6_cksum(const struct ip6_hdr *ip6, const struct dccp_hdr *dh, u_int len)
83 	return nextproto6_cksum(ip6, (const u_int8_t *)(void *)dh,
84 	    dccp_csum_coverage(dh, len), IPPROTO_DCCP);
95 static u_int64_t dccp_seqno(const struct dccp_hdr *dh)
97 	u_int32_t seq_high = DCCPH_SEQ(dh);
100 	if (DCCPH_X(dh) != 0) {
101 		const struct dccp_hdr_ext *dhx = (void *)(dh + 1);
110 static inline unsigned int dccp_basic_hdr_len(const struct dccp_hdr *dh)
112 	return sizeof(*dh) + (DCCPH_X(dh) ? sizeof(struct dccp_hdr_ext) : 0);
117 	const struct dccp_hdr *dh = (const struct dccp_hdr *)bp;
119 		(struct dccp_hdr_ack_bits *)(bp + dccp_basic_hdr_len(dh));
127 	if (DCCPH_X(dh) != 0) {
170 	const struct dccp_hdr *dh;
180 	dh = (const struct dccp_hdr *)bp;
189 	cp = (const u_char *)(dh + 1);
201 	sport = EXTRACT_16BITS(&dh->dccph_sport);
202 	dport = EXTRACT_16BITS(&dh->dccph_dport);
203 	hlen = dh->dccph_doff * 4;
230 		(void)printf("CCVal %d, CsCov %d, ", DCCPH_CCVAL(dh), DCCPH_CSCOV(dh));
237 		dccp_sum = EXTRACT_16BITS(&dh->dccph_checksum);
240 			sum = dccp_cksum(ip, dh, len);
243 			sum = dccp6_cksum(ip6, dh, len);
251 	switch (DCCPH_TYPE(dh)) {
254 			(struct dccp_hdr_request *)(bp + dccp_basic_hdr_len(dh));
263 			(struct dccp_hdr_response *)(bp + dccp_basic_hdr_len(dh));
293 			(struct dccp_hdr_reset *)(bp + dccp_basic_hdr_len(dh));
313 	if ((DCCPH_TYPE(dh) != DCCP_PKT_DATA) &&
314 			(DCCPH_TYPE(dh) != DCCP_PKT_REQUEST))
320 	(void)printf("seq %" PRIu64, dccp_seqno(dh));
323 	if (hlen > dccp_basic_hdr_len(dh) + extlen){
326 		cp = bp + dccp_basic_hdr_len(dh) + extlen;
329 		hlen -= dccp_basic_hdr_len(dh) + extlen;