sys/netipsec/xform_ah.c

275 ah_massage_headers(struct mbuf **m0, int proto, int skip, int alg, int out)
299 		*m0 = m = m_pullup(m, skip);
320 		for (off = sizeof(struct ip); off < skip;) {
322 			    off + 1 < skip)
334 				off = skip;  /* End the loop. */
404 			if (off > skip)	{
443 		if (skip - sizeof(struct ip6_hdr) > 0) {
444 			if (m->m_len <= skip) {
446 				    skip - sizeof(struct ip6_hdr),
460 				    skip - sizeof(struct ip6_hdr), ptr);
473 		for (off = 0; off < skip - sizeof(struct ip6_hdr);)
481 				if (noff > skip - sizeof(struct ip6_hdr))
534 			    skip - sizeof(struct ip6_hdr), ptr);
550 ah_input(struct mbuf *m, struct secasvar *sav, int skip, int protoff)
571 	IP6_EXTHDR_GET(ah, struct newah *, m, skip, rplen);
602 	if (skip + authsize + rplen > m->m_pkthdr.len) {
605 		    m->m_pkthdr.len, (u_long) (skip + authsize + rplen),
612 	AHSTAT_ADD(ahs_ibytes, m->m_pkthdr.len - skip - hl);
628 	crda->crd_inject = skip + rplen;
650 			skip + rplen + authsize, M_XDATA, M_NOWAIT|M_ZERO);
672 		m_copydata(m, 0, skip + rplen + authsize, (caddr_t)(tc+1));
675 		m_copyback(m, skip + rplen, authsize, ipseczeroes);
682 		    skip, ahx->type, 0);
706 	tc->tc_skip = skip;
723 	int rplen, error, skip, protoff;
740 	skip = tc->tc_skip;
787 	m_copydata(m, skip + rplen, authsize, calc);
797 		if (bcmp(ptr + skip + rplen, calc, authsize)) {
811 		m_copyback(m, 0, skip, ptr);
830 		m_copydata(m, skip + offsetof(struct newah, ah_seq),
842 	error = m_striphdr(m, skip, rplen + authsize);
854 		error = ipsec6_common_input_cb(m, sav, skip, protoff, mtag);
859 		error = ipsec4_common_input_cb(m, sav, skip, protoff, mtag);
889 	int skip,
948 	AHSTAT_ADD(ahs_obytes, m->m_pkthdr.len - skip);
961 	mi = m_makespace(m, skip, rplen + authsize, &roff);
986 	m_copyback(m, skip + rplen, authsize, ipseczeroes);
1021 	crda->crd_inject = skip + rplen;
1031 		sizeof(struct tdb_crypto) + skip, M_XDATA, M_NOWAIT|M_ZERO);
1041 	m_copydata(m, 0, skip, (caddr_t) (tc + 1));
1081 			skip, ahx->type, 1);
1104 	tc->tc_skip = skip;
1120 	int skip, protoff, error;
1129 	skip = tc->tc_skip;
1174 	m_copyback(m, 0, skip, ptr);