209 esp4_input(struct mbuf *m, int off)  in esp4_input()  argument
211 	(void)esp4_input_extended(m, off, NULL);  in esp4_input()
215 esp4_input_extended(struct mbuf *m, int off, ifnet_t interface)  in esp4_input_extended()  argument
238 	if (off % 4 != 0 || m->m_pkthdr.len % 4 != 0) {  in esp4_input_extended()
240 		    "(off=%d, pktlen=%d)\n", off, m->m_pkthdr.len));  in esp4_input_extended()
245 	if (m->m_len < off + ESPMAXLEN) {  in esp4_input_extended()
246 		m = m_pullup(m, off + ESPMAXLEN);  in esp4_input_extended()
263 	    !(ip->ip_p == IPPROTO_UDP && off >= sizeof(struct udphdr))) {  in esp4_input_extended()
269 	esp = (struct esp *)(void *)(((u_int8_t *)ip) + off);  in esp4_input_extended()
355 		if (m->m_pkthdr.len < off + ESPMAXLEN + siz) {  in esp4_input_extended()
374 		if (m->m_pkthdr.len < off + ESPMAXLEN + siz) {  in esp4_input_extended()
391 		if (esp_auth(m, off, m->m_pkthdr.len - off - siz, sav, sum)) {  in esp4_input_extended()
444 	if (m->m_pkthdr.len < off + esplen + ivlen + sizeof(esptail)) {  in esp4_input_extended()
451 	if (m->m_len < off + esplen + ivlen) {  in esp4_input_extended()
452 		m = m_pullup(m, (int)(off + esplen + ivlen));  in esp4_input_extended()
477 	if ((*algo->decrypt)(m, off, sav, algo, ivlen)) {  in esp4_input_extended()
541 		if (m->m_len < off) {  in esp4_input_extended()
542 			m = m_pullup(m, off);  in esp4_input_extended()
553 		off -= sizeof(struct udphdr); // off no longer includes the udphdr's size  in esp4_input_extended()
559 			struct udphdr *encap_uh = (__typeof__(encap_uh))(void *)((caddr_t)ip + off);  in esp4_input_extended()
565 		ip = esp4_input_strip_udp_encap(m, off);  in esp4_input_extended()
566 		esp = (struct esp *)(void *)(((u_int8_t *)ip) + off);  in esp4_input_extended()
570 	if (ipsec4_tunnel_validate(m, (int)(off + esplen + ivlen), nxt, sav, &ifamily)) {  in esp4_input_extended()
586 		m_adj(m, (int)(off + esplen + ivlen));  in esp4_input_extended()
754 		ovbcopy((caddr_t)ip, (caddr_t)(((u_char *)ip) + stripsiz), off);  in esp4_input_extended()
802 				if (m->m_len < off + sizeof(struct udphdr)) {  in esp4_input_extended()
803 					m = m_pullup(m, off + sizeof(struct udphdr));  in esp4_input_extended()
812 				udp = (struct udphdr *)(void *)(((u_int8_t *)ip) + off);  in esp4_input_extended()
886 			ip_proto_dispatch_in(m, off, (u_int8_t)nxt, 0);  in esp4_input_extended()
928 	int off = *offp;  in esp6_input_extended()  local
945 	if (off % 4 != 0 || m->m_pkthdr.len % 4 != 0) {  in esp6_input_extended()
947 		    "(off=%d, pktlen=%d)\n", off, m->m_pkthdr.len));  in esp6_input_extended()
953 	IP6_EXTHDR_CHECK(m, off, ESPMAXLEN, {return IPPROTO_DONE;});  in esp6_input_extended()
954 	esp = (struct esp *)(void *)(mtod(m, caddr_t) + off);  in esp6_input_extended()
956 	IP6_EXTHDR_GET(esp, struct esp *, m, off, ESPMAXLEN);  in esp6_input_extended()
977 	    off >= (sizeof(struct udphdr) + sizeof(struct ip6_hdr))))) {  in esp6_input_extended()
1068 		if (m->m_pkthdr.len < off + ESPMAXLEN + siz) {  in esp6_input_extended()
1087 		if (m->m_pkthdr.len < off + ESPMAXLEN + siz) {  in esp6_input_extended()
1104 		if (esp_auth(m, off, m->m_pkthdr.len - off - siz, sav, sum)) {  in esp6_input_extended()
1152 	if (m->m_pkthdr.len < off + esplen + ivlen + sizeof(esptail)) {  in esp6_input_extended()
1160 	IP6_EXTHDR_CHECK(m, off, (int)(esplen + ivlen), goto bad);  /*XXX*/  in esp6_input_extended()
1162 	IP6_EXTHDR_GET(esp, struct esp *, m, off, esplen + ivlen);  in esp6_input_extended()
1186 	if ((*algo->decrypt)(m, off, sav, algo, ivlen)) {  in esp6_input_extended()
1247 		if (m->m_len < off) {  in esp6_input_extended()
1248 			m = m_pullup(m, off);  in esp6_input_extended()
1259 		off -= sizeof(struct udphdr); // off no longer includes the udphdr's size  in esp6_input_extended()
1265 			struct udphdr *encap_uh = (__typeof__(encap_uh))(void *)((caddr_t)ip6 + off);  in esp6_input_extended()
1271 		ip6 = esp6_input_strip_udp_encap(m, off);  in esp6_input_extended()
1272 		esp = (struct esp *)(void *)(((u_int8_t *)ip6) + off);  in esp6_input_extended()
1277 	if (ipsec6_tunnel_validate(m, (int)(off + esplen + ivlen), nxt, sav, &ifamily)) {  in esp6_input_extended()
1291 		m_adj(m, (int)(off + esplen + ivlen));  in esp6_input_extended()
1449 		prvnxtp = ip6_get_prevhdr(m, off); /* XXX */  in esp6_input_extended()
1456 		if (m->m_len >= stripsiz + off) {  in esp6_input_extended()
1457 			ovbcopy((caddr_t)ip6, ((caddr_t)ip6) + stripsiz, off);  in esp6_input_extended()
1468 			n = m_split(m, off, M_DONTWAIT);  in esp6_input_extended()
1589 	*offp = off;  in esp6_input_extended()
1628 	int off = 0;  in esp6_ctlinput()  local
1643 		off = ip6cp->ip6c_off;  in esp6_ctlinput()
1674 		if (m->m_pkthdr.len < off + sizeof(esp)) {  in esp6_ctlinput()
1678 		if (m->m_len < off + sizeof(esp)) {  in esp6_ctlinput()
1683 			m_copydata(m, off, sizeof(esp), (caddr_t)&esp);  in esp6_ctlinput()
1686 			espp = (struct newesp*)(void *)(mtod(m, caddr_t) + off);  in esp6_ctlinput()