bsd/netinet6/ah_input.c

106 #include <netinet6/ah.h>
133 	struct ah *ah;
160 	ah = (struct ah *)(void *)(((caddr_t)ip) + off);
166 	IP6_EXTHDR_GET(ah, struct ah *, m, off, sizeof(struct newah));
167 	if (ah == NULL) {
174 	nxt = ah->ah_nxt;
182 	spi = ah->ah_spi;
253 	if ((ah->ah_len << 2) - sizoff != siz1) {
256 		    (ah->ah_len << 2) - sizoff, (u_int32_t)siz1,
263 	if (m->m_len < off + sizeof(struct ah) + sizoff + siz1) {
264 		m = m_pullup(m, off + sizeof(struct ah) + sizoff + siz1);
274 		ah = (struct ah *)(void *)(((caddr_t)ip) + off);
277 	IP6_EXTHDR_GET(ah, struct ah *, m, off,
278 		sizeof(struct ah) + sizoff + siz1);
279 	if (ah == NULL) {
291 		if (ipsec_chkreplay(ntohl(((struct newah *)ah)->ah_seq), sav))
337 		sumpos = (caddr_t)(ah + 1);
340 		sumpos = (caddr_t)(((struct newah *)ah) + 1);
363 	if (ah->ah_nxt == IPPROTO_IPIP || ah->ah_nxt == IPPROTO_IP) {
369 		if (m->m_len < off + sizeof(struct ah) + sizoff + siz1 + hlen) {
370 			m = m_pullup(m, off + sizeof(struct ah)
380 		nip = (struct ip *)((u_char *)(ah + 1) + sizoff + siz1);
388 	else if (ah->ah_nxt == IPPROTO_IPV6) {
414 		if (ipsec_updatereplay(ntohl(((struct newah *)ah)->ah_seq), sav)) {
423 		stripsiz = sizeof(struct ah) + siz1;
627 	struct ah *ah;
639 	IP6_EXTHDR_CHECK(m, off, sizeof(struct ah), {return IPPROTO_DONE;});
640 	ah = (struct ah *)(void *)(mtod(m, caddr_t) + off);
642 	IP6_EXTHDR_GET(ah, struct ah *, m, off, sizeof(struct newah));
643 	if (ah == NULL) {
653 	nxt = ah->ah_nxt;
656 	spi = ah->ah_spi;
717 	if ((ah->ah_len << 2) - sizoff != siz1) {
720 		    (ah->ah_len << 2) - sizoff, (u_int32_t)siz1,
726 	IP6_EXTHDR_CHECK(m, off, sizeof(struct ah) + sizoff + siz1,
729 	IP6_EXTHDR_GET(ah, struct ah *, m, off,
730 		sizeof(struct ah) + sizoff + siz1);
731 	if (ah == NULL) {
744 		if (ipsec_chkreplay(ntohl(((struct newah *)ah)->ah_seq), sav))
780 		sumpos = (caddr_t)(ah + 1);
783 		sumpos = (caddr_t)(((struct newah *)ah) + 1);
806 	if (ah->ah_nxt == IPPROTO_IPV6) {
812 		IP6_EXTHDR_CHECK(m, off, sizeof(struct ah) + sizoff + siz1
816 		nip6 = (struct ip6_hdr *)((u_char *)(ah + 1) + sizoff + siz1);
822 	} else if (ah->ah_nxt == IPPROTO_IPIP) {
825 	} else if (ah->ah_nxt == IPPROTO_IP) {
850 		if (ipsec_updatereplay(ntohl(((struct newah *)ah)->ah_seq), sav)) {
859 		stripsiz = sizeof(struct ah) + siz1;
1031 	struct newah ah;
1063 		if (m->m_pkthdr.len < off + sizeof(ah))
1066 		if (m->m_len < off + sizeof(ah)) {
1071 			m_copydata(m, off, sizeof(ah), (caddr_t)&ah);
1072 			ahp = &ah;