Lines Matching +full:xo +full:- +full:1
1 // SPDX-License-Identifier: GPL-2.0-or-later
52 #define ESP_SKB_CB(__skb) ((struct esp_skb_cb *)&((__skb)->cb[0]))
73 ~(crypto_tfm_ctx_alignment() - 1); in esp_alloc_tmp()
94 crypto_aead_alignmask(aead) + 1) : tmp + seqhilen; in esp_tmp_iv()
110 return (void *)ALIGN((unsigned long)(req + 1) + in esp_req_sg()
118 struct crypto_aead *aead = x->data; in esp_ssg_unref()
124 if (x->props.flags & XFRM_STATE_ESN) in esp_ssg_unref()
131 * Skip the first sg which comes from skb->data. in esp_ssg_unref()
133 if (req->src != req->dst) in esp_ssg_unref()
134 for (sg = sg_next(req->src); sg; sg = sg_next(sg)) in esp_ssg_unref()
148 sock_put(esk->sk); in esp_free_tcp_sk()
154 struct xfrm_encap_tmpl *encap = x->encap; in esp6_find_tcp_sk()
160 sk = rcu_dereference(x->encap_sk); in esp6_find_tcp_sk()
161 if (sk && sk->sk_state == TCP_ESTABLISHED) in esp6_find_tcp_sk()
164 spin_lock_bh(&x->lock); in esp6_find_tcp_sk()
165 sport = encap->encap_sport; in esp6_find_tcp_sk()
166 dport = encap->encap_dport; in esp6_find_tcp_sk()
167 nsk = rcu_dereference_protected(x->encap_sk, in esp6_find_tcp_sk()
168 lockdep_is_held(&x->lock)); in esp6_find_tcp_sk()
172 spin_unlock_bh(&x->lock); in esp6_find_tcp_sk()
173 return ERR_PTR(-ENOMEM); in esp6_find_tcp_sk()
175 RCU_INIT_POINTER(x->encap_sk, NULL); in esp6_find_tcp_sk()
176 esk->sk = sk; in esp6_find_tcp_sk()
177 call_rcu(&esk->rcu, esp_free_tcp_sk); in esp6_find_tcp_sk()
179 spin_unlock_bh(&x->lock); in esp6_find_tcp_sk()
181 sk = __inet6_lookup_established(xs_net(x), &tcp_hashinfo, &x->id.daddr.in6, in esp6_find_tcp_sk()
182 dport, &x->props.saddr.in6, ntohs(sport), 0, 0); in esp6_find_tcp_sk()
184 return ERR_PTR(-ENOENT); in esp6_find_tcp_sk()
188 return ERR_PTR(-EINVAL); in esp6_find_tcp_sk()
191 spin_lock_bh(&x->lock); in esp6_find_tcp_sk()
192 nsk = rcu_dereference_protected(x->encap_sk, in esp6_find_tcp_sk()
193 lockdep_is_held(&x->lock)); in esp6_find_tcp_sk()
194 if (encap->encap_sport != sport || in esp6_find_tcp_sk()
195 encap->encap_dport != dport) { in esp6_find_tcp_sk()
197 sk = nsk ?: ERR_PTR(-EREMCHG); in esp6_find_tcp_sk()
201 rcu_assign_pointer(x->encap_sk, sk); in esp6_find_tcp_sk()
203 spin_unlock_bh(&x->lock); in esp6_find_tcp_sk()
236 struct xfrm_state *x = dst->xfrm; in esp_output_tcp_encap_cb()
253 return err ?: -EINPROGRESS; in esp_output_tail_tcp()
260 return -EOPNOTSUPP; in esp_output_tail_tcp()
270 int len = ntohs(uh->len); in esp_output_encap_csum()
272 __wsum csum = skb_checksum(skb, offset, skb->len - offset, 0); in esp_output_encap_csum()
274 uh->check = csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, in esp_output_encap_csum()
276 if (uh->check == 0) in esp_output_encap_csum()
277 uh->check = CSUM_MANGLED_0; in esp_output_encap_csum()
283 struct sk_buff *skb = base->data; in esp_output_done()
284 struct xfrm_offload *xo = xfrm_offload(skb); in esp_output_done() local
288 if (xo && (xo->flags & XFRM_DEV_RESUME)) { in esp_output_done()
291 x = sp->xvec[sp->len - 1]; in esp_output_done()
293 x = skb_dst(skb)->xfrm; in esp_output_done()
296 tmp = ESP_SKB_CB(skb)->tmp; in esp_output_done()
302 if (xo && (xo->flags & XFRM_DEV_RESUME)) { in esp_output_done()
309 skb_push(skb, skb->data - skb_mac_header(skb)); in esp_output_done()
314 x->encap && x->encap->encap_type == TCP_ENCAP_ESPINTCP) in esp_output_done()
317 xfrm_output_resume(skb->sk, skb, err); in esp_output_done()
324 struct ip_esp_hdr *esph = (void *)(skb->data + offset); in esp_restore_header()
325 void *tmp = ESP_SKB_CB(skb)->tmp; in esp_restore_header()
328 esph->seq_no = esph->spi; in esp_restore_header()
329 esph->spi = *seqhi; in esp_restore_header()
334 void *tmp = ESP_SKB_CB(skb)->tmp; in esp_output_restore_header()
337 esp_restore_header(skb, skb_transport_offset(skb) + extra->esphoff - in esp_output_restore_header()
350 if ((x->props.flags & XFRM_STATE_ESN)) { in esp_output_set_esn()
352 struct xfrm_offload *xo = xfrm_offload(skb); in esp_output_set_esn() local
354 if (xo) in esp_output_set_esn()
355 seqhi = xo->seq.hi; in esp_output_set_esn()
357 seqhi = XFRM_SKB_CB(skb)->seq.output.hi; in esp_output_set_esn()
359 extra->esphoff = (unsigned char *)esph - in esp_output_set_esn()
361 esph = (struct ip_esp_hdr *)((unsigned char *)esph - 4); in esp_output_set_esn()
362 extra->seqhi = esph->spi; in esp_output_set_esn()
363 esph->seq_no = htonl(seqhi); in esp_output_set_esn()
366 esph->spi = x->id.spi; in esp_output_set_esn()
373 struct sk_buff *skb = base->data; in esp_output_done_esn()
389 len = skb->len + esp->tailen - skb_transport_offset(skb); in esp6_output_udp_encap()
391 return ERR_PTR(-EMSGSIZE); in esp6_output_udp_encap()
393 uh = (struct udphdr *)esp->esph; in esp6_output_udp_encap()
394 uh->source = sport; in esp6_output_udp_encap()
395 uh->dest = dport; in esp6_output_udp_encap()
396 uh->len = htons(len); in esp6_output_udp_encap()
397 uh->check = 0; in esp6_output_udp_encap()
402 udpdata32 = (__be32 *)(uh + 1); in esp6_output_udp_encap()
403 udpdata32[0] = udpdata32[1] = 0; in esp6_output_udp_encap()
407 return (struct ip_esp_hdr *)(uh + 1); in esp6_output_udp_encap()
415 __be16 *lenp = (void *)esp->esph; in esp6_output_tcp_encap()
420 len = skb->len + esp->tailen - skb_transport_offset(skb); in esp6_output_tcp_encap()
422 return ERR_PTR(-EMSGSIZE); in esp6_output_tcp_encap()
432 esph = (struct ip_esp_hdr *)(lenp + 1); in esp6_output_tcp_encap()
441 return ERR_PTR(-EOPNOTSUPP); in esp6_output_tcp_encap()
448 struct xfrm_encap_tmpl *encap = x->encap; in esp6_output_encap()
453 spin_lock_bh(&x->lock); in esp6_output_encap()
454 sport = encap->encap_sport; in esp6_output_encap()
455 dport = encap->encap_dport; in esp6_output_encap()
456 encap_type = encap->encap_type; in esp6_output_encap()
457 spin_unlock_bh(&x->lock); in esp6_output_encap()
473 esp->esph = esph; in esp6_output_encap()
485 int tailen = esp->tailen; in esp6_output_head()
488 if (x->encap) { in esp6_output_head()
495 allocsz = ALIGN(skb->data_len + tailen, L1_CACHE_BYTES); in esp6_output_head()
501 nfrags = 1; in esp6_output_head()
506 } else if ((skb_shinfo(skb)->nr_frags < MAX_SKB_FRAGS) in esp6_output_head()
509 struct sock *sk = skb->sk; in esp6_output_head()
510 struct page_frag *pfrag = &x->xfrag; in esp6_output_head()
512 esp->inplace = false; in esp6_output_head()
516 spin_lock_bh(&x->lock); in esp6_output_head()
519 spin_unlock_bh(&x->lock); in esp6_output_head()
523 page = pfrag->page; in esp6_output_head()
526 tail = page_address(page) + pfrag->offset; in esp6_output_head()
528 esp_output_fill_trailer(tail, esp->tfclen, esp->plen, esp->proto); in esp6_output_head()
530 nfrags = skb_shinfo(skb)->nr_frags; in esp6_output_head()
532 __skb_fill_page_desc(skb, nfrags, page, pfrag->offset, in esp6_output_head()
534 skb_shinfo(skb)->nr_frags = ++nfrags; in esp6_output_head()
536 pfrag->offset = pfrag->offset + allocsize; in esp6_output_head()
538 spin_unlock_bh(&x->lock); in esp6_output_head()
542 skb->len += tailen; in esp6_output_head()
543 skb->data_len += tailen; in esp6_output_head()
544 skb->truesize += tailen; in esp6_output_head()
546 refcount_add(tailen, &sk->sk_wmem_alloc); in esp6_output_head()
553 esph_offset = (unsigned char *)esp->esph - skb_transport_header(skb); in esp6_output_head()
559 esp->esph = (struct ip_esp_hdr *)(skb_transport_header(skb) + esph_offset); in esp6_output_head()
562 esp_output_fill_trailer(tail, esp->tfclen, esp->plen, esp->proto); in esp6_output_head()
584 int err = -ENOMEM; in esp6_output_tail()
589 if (x->props.flags & XFRM_STATE_ESN) { in esp6_output_tail()
594 aead = x->data; in esp6_output_tail()
598 tmp = esp_alloc_tmp(aead, esp->nfrags + 2, extralen); in esp6_output_tail()
607 if (esp->inplace) in esp6_output_tail()
610 dsg = &sg[esp->nfrags]; in esp6_output_tail()
612 esph = esp_output_set_esn(skb, x, esp->esph, extra); in esp6_output_tail()
613 esp->esph = esph; in esp6_output_tail()
615 sg_init_table(sg, esp->nfrags); in esp6_output_tail()
617 (unsigned char *)esph - skb->data, in esp6_output_tail()
618 assoclen + ivlen + esp->clen + alen); in esp6_output_tail()
622 if (!esp->inplace) { in esp6_output_tail()
624 struct page_frag *pfrag = &x->xfrag; in esp6_output_tail()
626 allocsize = ALIGN(skb->data_len, L1_CACHE_BYTES); in esp6_output_tail()
628 spin_lock_bh(&x->lock); in esp6_output_tail()
630 spin_unlock_bh(&x->lock); in esp6_output_tail()
634 skb_shinfo(skb)->nr_frags = 1; in esp6_output_tail()
636 page = pfrag->page; in esp6_output_tail()
639 __skb_fill_page_desc(skb, 0, page, pfrag->offset, skb->data_len); in esp6_output_tail()
640 pfrag->offset = pfrag->offset + allocsize; in esp6_output_tail()
641 spin_unlock_bh(&x->lock); in esp6_output_tail()
643 sg_init_table(dsg, skb_shinfo(skb)->nr_frags + 1); in esp6_output_tail()
645 (unsigned char *)esph - skb->data, in esp6_output_tail()
646 assoclen + ivlen + esp->clen + alen); in esp6_output_tail()
651 if ((x->props.flags & XFRM_STATE_ESN)) in esp6_output_tail()
656 aead_request_set_crypt(req, sg, dsg, ivlen + esp->clen, iv); in esp6_output_tail()
660 memcpy(iv + ivlen - min(ivlen, 8), (u8 *)&esp->seqno + 8 - min(ivlen, 8), in esp6_output_tail()
663 ESP_SKB_CB(skb)->tmp = tmp; in esp6_output_tail()
667 case -EINPROGRESS: in esp6_output_tail()
670 case -ENOSPC: in esp6_output_tail()
675 if ((x->props.flags & XFRM_STATE_ESN)) in esp6_output_tail()
683 if (!err && x->encap && x->encap->encap_type == TCP_ENCAP_ESPINTCP) in esp6_output_tail()
708 aead = x->data; in esp6_output()
712 if (x->tfcpad) { in esp6_output()
716 padto = min(x->tfcpad, __xfrm_state_mtu(x, dst->child_mtu_cached)); in esp6_output()
717 if (skb->len < padto) in esp6_output()
718 esp.tfclen = padto - skb->len; in esp6_output()
721 esp.clen = ALIGN(skb->len + 2 + esp.tfclen, blksize); in esp6_output()
722 esp.plen = esp.clen - skb->len - esp.tfclen; in esp6_output()
732 esph->spi = x->id.spi; in esp6_output()
734 esph->seq_no = htonl(XFRM_SKB_CB(skb)->seq.output.low); in esp6_output()
735 esp.seqno = cpu_to_be64(XFRM_SKB_CB(skb)->seq.output.low + in esp6_output()
736 ((u64)XFRM_SKB_CB(skb)->seq.output.hi << 32)); in esp6_output()
738 skb_push(skb, -skb_network_offset(skb)); in esp6_output()
746 struct xfrm_offload *xo = xfrm_offload(skb); in esp_remove_trailer() local
747 struct crypto_aead *aead = x->data; in esp_remove_trailer()
756 elen = skb->len - hlen; in esp_remove_trailer()
758 if (xo && (xo->flags & XFRM_ESP_NO_TRAILER)) { in esp_remove_trailer()
759 ret = xo->proto; in esp_remove_trailer()
763 ret = skb_copy_bits(skb, skb->len - alen - 2, nexthdr, 2); in esp_remove_trailer()
766 ret = -EINVAL; in esp_remove_trailer()
770 padlen + 2, elen - alen); in esp_remove_trailer()
775 if (skb->ip_summed == CHECKSUM_COMPLETE) { in esp_remove_trailer()
776 csumdiff = skb_checksum(skb, skb->len - trimlen, trimlen, 0); in esp_remove_trailer()
777 skb->csum = csum_block_sub(skb->csum, csumdiff, in esp_remove_trailer()
778 skb->len - trimlen); in esp_remove_trailer()
780 pskb_trim(skb, skb->len - trimlen); in esp_remove_trailer()
782 ret = nexthdr[1]; in esp_remove_trailer()
791 struct xfrm_offload *xo = xfrm_offload(skb); in esp6_input_done2() local
792 struct crypto_aead *aead = x->data; in esp6_input_done2()
796 if (!xo || (xo && !(xo->flags & CRYPTO_DONE))) in esp6_input_done2()
797 kfree(ESP_SKB_CB(skb)->tmp); in esp6_input_done2()
806 if (x->encap) { in esp6_input_done2()
809 struct xfrm_encap_tmpl *encap = x->encap; in esp6_input_done2()
810 u8 nexthdr = ip6h->nexthdr; in esp6_input_done2()
818 err = -EINVAL; in esp6_input_done2()
822 uh = (void *)(skb->data + offset); in esp6_input_done2()
823 th = (void *)(skb->data + offset); in esp6_input_done2()
826 switch (x->encap->encap_type) { in esp6_input_done2()
828 source = th->source; in esp6_input_done2()
832 source = uh->source; in esp6_input_done2()
835 WARN_ON_ONCE(1); in esp6_input_done2()
836 err = -EINVAL; in esp6_input_done2()
841 * 1) if the NAT-T peer's IP or port changed then in esp6_input_done2()
846 if (!ipv6_addr_equal(&ip6h->saddr, &x->props.saddr.in6) || in esp6_input_done2()
847 source != encap->encap_sport) { in esp6_input_done2()
850 memcpy(&ipaddr.a6, &ip6h->saddr.s6_addr, sizeof(ipaddr.a6)); in esp6_input_done2()
864 * of NAT-T in Transport Mode, or in esp6_input_done2()
865 * perform other post-processing fixes in esp6_input_done2()
866 * as per draft-ietf-ipsec-udp-encaps-06, in esp6_input_done2()
869 if (x->props.mode == XFRM_MODE_TRANSPORT) in esp6_input_done2()
870 skb->ip_summed = CHECKSUM_UNNECESSARY; in esp6_input_done2()
876 if (x->props.mode == XFRM_MODE_TUNNEL) in esp6_input_done2()
879 skb_set_transport_header(skb, -hdr_len); in esp6_input_done2()
883 err = -EINVAL; in esp6_input_done2()
892 struct sk_buff *skb = base->data; in esp_input_done()
911 if ((x->props.flags & XFRM_STATE_ESN)) { in esp_input_set_header()
914 *seqhi = esph->spi; in esp_input_set_header()
915 esph->spi = esph->seq_no; in esp_input_set_header()
916 esph->seq_no = XFRM_SKB_CB(skb)->seq.input.hi; in esp_input_set_header()
922 struct sk_buff *skb = base->data; in esp_input_done_esn()
930 struct crypto_aead *aead = x->data; in esp6_input()
934 int elen = skb->len - sizeof(struct ip_esp_hdr) - ivlen; in esp6_input()
945 ret = -EINVAL; in esp6_input()
950 ret = -EINVAL; in esp6_input()
957 if (x->props.flags & XFRM_STATE_ESN) { in esp6_input()
964 nfrags = 1; in esp6_input()
968 nfrags = skb_shinfo(skb)->nr_frags; in esp6_input()
977 ret = -EINVAL; in esp6_input()
982 ret = -ENOMEM; in esp6_input()
987 ESP_SKB_CB(skb)->tmp = tmp; in esp6_input()
996 ret = skb_to_sgvec(skb, sg, 0, skb->len); in esp6_input()
1002 skb->ip_summed = CHECKSUM_NONE; in esp6_input()
1004 if ((x->props.flags & XFRM_STATE_ESN)) in esp6_input()
1013 if (ret == -EINPROGRESS) in esp6_input()
1016 if ((x->props.flags & XFRM_STATE_ESN)) in esp6_input()
1028 struct net *net = dev_net(skb->dev); in esp6_err()
1029 const struct ipv6hdr *iph = (const struct ipv6hdr *)skb->data; in esp6_err()
1030 struct ip_esp_hdr *esph = (struct ip_esp_hdr *)(skb->data + offset); in esp6_err()
1037 x = xfrm_state_lookup(net, skb->mark, (const xfrm_address_t *)&iph->daddr, in esp6_err()
1038 esph->spi, IPPROTO_ESP, AF_INET6); in esp6_err()
1043 ip6_redirect(skb, net, skb->dev->ifindex, 0, in esp6_err()
1054 struct crypto_aead *aead = x->data; in esp6_destroy()
1068 err = -ENAMETOOLONG; in esp_init_aead()
1070 x->geniv, x->aead->alg_name) >= CRYPTO_MAX_ALG_NAME) in esp_init_aead()
1078 x->data = aead; in esp_init_aead()
1080 err = crypto_aead_setkey(aead, x->aead->alg_key, in esp_init_aead()
1081 (x->aead->alg_key_len + 7) / 8); in esp_init_aead()
1085 err = crypto_aead_setauthsize(aead, x->aead->alg_icv_len / 8); in esp_init_aead()
1104 err = -EINVAL; in esp_init_authenc()
1105 if (!x->ealg) in esp_init_authenc()
1108 err = -ENAMETOOLONG; in esp_init_authenc()
1110 if ((x->props.flags & XFRM_STATE_ESN)) { in esp_init_authenc()
1113 x->geniv ?: "", x->geniv ? "(" : "", in esp_init_authenc()
1114 x->aalg ? x->aalg->alg_name : "digest_null", in esp_init_authenc()
1115 x->ealg->alg_name, in esp_init_authenc()
1116 x->geniv ? ")" : "") >= CRYPTO_MAX_ALG_NAME) in esp_init_authenc()
1121 x->geniv ?: "", x->geniv ? "(" : "", in esp_init_authenc()
1122 x->aalg ? x->aalg->alg_name : "digest_null", in esp_init_authenc()
1123 x->ealg->alg_name, in esp_init_authenc()
1124 x->geniv ? ")" : "") >= CRYPTO_MAX_ALG_NAME) in esp_init_authenc()
1133 x->data = aead; in esp_init_authenc()
1135 keylen = (x->aalg ? (x->aalg->alg_key_len + 7) / 8 : 0) + in esp_init_authenc()
1136 (x->ealg->alg_key_len + 7) / 8 + RTA_SPACE(sizeof(*param)); in esp_init_authenc()
1137 err = -ENOMEM; in esp_init_authenc()
1144 rta->rta_type = CRYPTO_AUTHENC_KEYA_PARAM; in esp_init_authenc()
1145 rta->rta_len = RTA_LENGTH(sizeof(*param)); in esp_init_authenc()
1149 if (x->aalg) { in esp_init_authenc()
1152 memcpy(p, x->aalg->alg_key, (x->aalg->alg_key_len + 7) / 8); in esp_init_authenc()
1153 p += (x->aalg->alg_key_len + 7) / 8; in esp_init_authenc()
1155 aalg_desc = xfrm_aalg_get_byname(x->aalg->alg_name, 0); in esp_init_authenc()
1158 err = -EINVAL; in esp_init_authenc()
1159 if (aalg_desc->uinfo.auth.icv_fullbits / 8 != in esp_init_authenc()
1162 x->aalg->alg_name, in esp_init_authenc()
1164 aalg_desc->uinfo.auth.icv_fullbits / 8); in esp_init_authenc()
1169 aead, x->aalg->alg_trunc_len / 8); in esp_init_authenc()
1174 param->enckeylen = cpu_to_be32((x->ealg->alg_key_len + 7) / 8); in esp_init_authenc()
1175 memcpy(p, x->ealg->alg_key, (x->ealg->alg_key_len + 7) / 8); in esp_init_authenc()
1192 x->data = NULL; in esp6_init_state()
1194 if (x->aead) in esp6_init_state()
1202 aead = x->data; in esp6_init_state()
1204 x->props.header_len = sizeof(struct ip_esp_hdr) + in esp6_init_state()
1206 switch (x->props.mode) { in esp6_init_state()
1208 if (x->sel.family != AF_INET6) in esp6_init_state()
1209 x->props.header_len += IPV4_BEET_PHMAXLEN + in esp6_init_state()
1210 (sizeof(struct ipv6hdr) - sizeof(struct iphdr)); in esp6_init_state()
1216 x->props.header_len += sizeof(struct ipv6hdr); in esp6_init_state()
1220 if (x->encap) { in esp6_init_state()
1221 struct xfrm_encap_tmpl *encap = x->encap; in esp6_init_state()
1223 switch (encap->encap_type) { in esp6_init_state()
1225 err = -EINVAL; in esp6_init_state()
1228 x->props.header_len += sizeof(struct udphdr); in esp6_init_state()
1231 x->props.header_len += sizeof(struct udphdr) + 2 * sizeof(u32); in esp6_init_state()
1238 x->props.header_len += 2; in esp6_init_state()
1245 x->props.trailer_len = align + 1 + crypto_aead_authsize(aead); in esp6_init_state()
1280 return -EAGAIN; in esp6_init()
1285 return -EAGAIN; in esp6_init()