Adding UDP encapsulation support for IPsec in
lookaside protocol mode.
Signed-off-by: Tejasree Kondoj <ktejas...@marvell.com>
Acked-by: Akhil Goyal <gak...@marvell.com>
---
doc/guides/cryptodevs/octeontx2.rst | 1 +
doc/guides/rel_notes/release_21_05.rst | 2 +
drivers/crypto/octeontx2/otx2_cryptodev_sec.c | 59 ++++++++-----------
3 files changed, 28 insertions(+), 34 deletions(-)
diff --git a/doc/guides/cryptodevs/octeontx2.rst
b/doc/guides/cryptodevs/octeontx2.rst
index 8c7df065b3..00226a8c77 100644
--- a/doc/guides/cryptodevs/octeontx2.rst
+++ b/doc/guides/cryptodevs/octeontx2.rst
@@ -181,6 +181,7 @@ Features supported
* Tunnel mode
* ESN
* Anti-replay
+* UDP Encapsulation
* AES-128/192/256-GCM
* AES-128/192/256-CBC-SHA1-HMAC
* AES-128/192/256-CBC-SHA256-128-HMAC
diff --git a/doc/guides/rel_notes/release_21_05.rst
b/doc/guides/rel_notes/release_21_05.rst
index b21906ccf6..f637591e91 100644
--- a/doc/guides/rel_notes/release_21_05.rst
+++ b/doc/guides/rel_notes/release_21_05.rst
@@ -157,6 +157,8 @@ New Features
* **Updated the OCTEON TX2 crypto PMD.**
* Added support for DIGEST_ENCRYPTED mode in OCTEON TX2 crypto PMD.
+ * Updated the OCTEON TX2 crypto PMD lookaside protocol offload for IPsec with
+ UDP encapsulation support for NAT Traversal.
* **Updated Mellanox RegEx PMD.**
diff --git a/drivers/crypto/octeontx2/otx2_cryptodev_sec.c
b/drivers/crypto/octeontx2/otx2_cryptodev_sec.c
index 342f089df8..210c53aa0a 100644
--- a/drivers/crypto/octeontx2/otx2_cryptodev_sec.c
+++ b/drivers/crypto/octeontx2/otx2_cryptodev_sec.c
@@ -203,6 +203,7 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
struct rte_security_session *sec_sess)
{
struct rte_crypto_sym_xform *auth_xform, *cipher_xform;
+ struct otx2_ipsec_po_ip_template *template;
const uint8_t *cipher_key, *auth_key;
struct otx2_sec_session_ipsec_lp *lp;
struct otx2_ipsec_po_sa_ctl *ctl;
@@ -248,11 +249,7 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
if (ipsec->tunnel.type == RTE_SECURITY_IPSEC_TUNNEL_IPV4) {
if (ctl->enc_type == OTX2_IPSEC_PO_SA_ENC_AES_GCM) {
- if (ipsec->options.udp_encap) {
- sa->aes_gcm.template.ip4.udp_src = 4500;
- sa->aes_gcm.template.ip4.udp_dst = 4500;
- }
- ip = &sa->aes_gcm.template.ip4.ipv4_hdr;
+ template = &sa->aes_gcm.template;
ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
aes_gcm.template) + sizeof(
sa->aes_gcm.template.ip4);
@@ -260,11 +257,7 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
lp->ctx_len = ctx_len >> 3;
} else if (ctl->auth_type ==
OTX2_IPSEC_PO_SA_AUTH_SHA1) {
- if (ipsec->options.udp_encap) {
- sa->sha1.template.ip4.udp_src = 4500;
- sa->sha1.template.ip4.udp_dst = 4500;
- }
- ip = &sa->sha1.template.ip4.ipv4_hdr;
+ template = &sa->sha1.template;
ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
sha1.template) + sizeof(
sa->sha1.template.ip4);
@@ -272,11 +265,7 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
lp->ctx_len = ctx_len >> 3;
} else if (ctl->auth_type ==
OTX2_IPSEC_PO_SA_AUTH_SHA2_256) {
- if (ipsec->options.udp_encap) {
- sa->sha2.template.ip4.udp_src = 4500;
- sa->sha2.template.ip4.udp_dst = 4500;
- }
- ip = &sa->sha2.template.ip4.ipv4_hdr;
+ template = &sa->sha2.template;
ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
sha2.template) + sizeof(
sa->sha2.template.ip4);
@@ -285,8 +274,15 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
} else {
return -EINVAL;
}
+ ip = &template->ip4.ipv4_hdr;
+ if (ipsec->options.udp_encap) {
+ ip->next_proto_id = IPPROTO_UDP;
+ template->ip4.udp_src = rte_be_to_cpu_16(4500);
+ template->ip4.udp_dst = rte_be_to_cpu_16(4500);
+ } else {
+ ip->next_proto_id = IPPROTO_ESP;
+ }
ip->version_ihl = RTE_IPV4_VHL_DEF;
- ip->next_proto_id = IPPROTO_ESP;
ip->time_to_live = ipsec->tunnel.ipv4.ttl;
ip->type_of_service |= (ipsec->tunnel.ipv4.dscp << 2);
if (ipsec->tunnel.ipv4.df)
@@ -299,11 +295,7 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
RTE_SECURITY_IPSEC_TUNNEL_IPV6) {
if (ctl->enc_type == OTX2_IPSEC_PO_SA_ENC_AES_GCM) {
- if (ipsec->options.udp_encap) {
- sa->aes_gcm.template.ip6.udp_src = 4500;
- sa->aes_gcm.template.ip6.udp_dst = 4500;
- }
- ip6 = &sa->aes_gcm.template.ip6.ipv6_hdr;
+ template = &sa->aes_gcm.template;
ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
aes_gcm.template) + sizeof(
sa->aes_gcm.template.ip6);
@@ -311,11 +303,7 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
lp->ctx_len = ctx_len >> 3;
} else if (ctl->auth_type ==
OTX2_IPSEC_PO_SA_AUTH_SHA1) {
- if (ipsec->options.udp_encap) {
- sa->sha1.template.ip6.udp_src = 4500;
- sa->sha1.template.ip6.udp_dst = 4500;
- }
- ip6 = &sa->sha1.template.ip6.ipv6_hdr;
+ template = &sa->sha1.template;
ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
sha1.template) + sizeof(
sa->sha1.template.ip6);
@@ -323,11 +311,7 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
lp->ctx_len = ctx_len >> 3;
} else if (ctl->auth_type ==
OTX2_IPSEC_PO_SA_AUTH_SHA2_256) {
- if (ipsec->options.udp_encap) {
- sa->sha2.template.ip6.udp_src = 4500;
- sa->sha2.template.ip6.udp_dst = 4500;
- }
- ip6 = &sa->sha2.template.ip6.ipv6_hdr;
+ template = &sa->sha2.template;
ctx_len = offsetof(struct otx2_ipsec_po_out_sa,
sha2.template) + sizeof(
sa->sha2.template.ip6);
@@ -337,6 +321,16 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
return -EINVAL;
}
+ ip6 = &template->ip6.ipv6_hdr;
+ if (ipsec->options.udp_encap) {
+ ip6->proto = IPPROTO_UDP;
+ template->ip6.udp_src = rte_be_to_cpu_16(4500);
+ template->ip6.udp_dst = rte_be_to_cpu_16(4500);
+ } else {
+ ip6->proto = (ipsec->proto ==
+ RTE_SECURITY_IPSEC_SA_PROTO_ESP) ?
+ IPPROTO_ESP : IPPROTO_AH;
+ }
ip6->vtc_flow = rte_cpu_to_be_32(0x60000000 |
((ipsec->tunnel.ipv6.dscp <<
RTE_IPV6_HDR_TC_SHIFT) &
@@ -345,9 +339,6 @@ crypto_sec_ipsec_outb_session_create(struct rte_cryptodev
*crypto_dev,
RTE_IPV6_HDR_FL_SHIFT) &
RTE_IPV6_HDR_FL_MASK));
ip6->hop_limits = ipsec->tunnel.ipv6.hlimit;
- ip6->proto = (ipsec->proto ==
- RTE_SECURITY_IPSEC_SA_PROTO_ESP) ?
- IPPROTO_ESP : IPPROTO_AH;
memcpy(&ip6->src_addr, &ipsec->tunnel.ipv6.src_addr,
sizeof(struct in6_addr));
memcpy(&ip6->dst_addr, &ipsec->tunnel.ipv6.dst_addr,
--
2.27.0
