[PATCH v2 2/7] examples/ipsec-secgw: support XCBC-MAC/DES-CBC

[Gagandeep Singh <g.singh@nxp.com>]

ipsec-secgw application is updated to support
DES-CBC ciphering and XCBC-MAC authentication
based IPsec functionality.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
 doc/guides/sample_app_ug/ipsec_secgw.rst | 7 +++++--
 examples/ipsec-secgw/esp.c               | 5 +++++
 examples/ipsec-secgw/sa.c                | 8 ++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/doc/guides/sample_app_ug/ipsec_secgw.rst b/doc/guides/sample_app_ug/ipsec_secgw.rst
index d93acf0667..5cb6a69a27 100644
--- a/doc/guides/sample_app_ug/ipsec_secgw.rst
+++ b/doc/guides/sample_app_ug/ipsec_secgw.rst
@@ -115,8 +115,9 @@ Constraints
 
 *  No IPv6 options headers.
 *  No AH mode.
-*  Supported algorithms: AES-CBC, AES-CTR, AES-GCM, 3DES-CBC, HMAC-SHA1,
-   AES-GMAC, AES_CTR, AES_XCBC_MAC, AES_CCM, CHACHA20_POLY1305 and NULL.
+*  Supported algorithms: AES-CBC, AES-CTR, AES-GCM, 3DES-CBC, DES-CBC,
+   HMAC-SHA1, AES-GMAC, AES_CTR, AES_XCBC_MAC, AES_CCM, CHACHA20_POLY1305
+   and NULL.
 *  Each SA must be handle by a unique lcore (*1 RX queue per port*).
 
 Compiling the Application
@@ -566,6 +567,7 @@ where each options means:
    * *aes-256-cbc*: AES-CBC 256-bit algorithm
    * *aes-128-ctr*: AES-CTR 128-bit algorithm
    * *3des-cbc*: 3DES-CBC 192-bit algorithm
+   * *des-cbc*: DES-CBC 64-bit algorithm
 
  * Syntax: *cipher_algo <your algorithm>*
 
@@ -593,6 +595,7 @@ where each options means:
 
     * *null*: NULL algorithm
     * *sha1-hmac*: HMAC SHA1 algorithm
+    * *aes-xcbc-mac*: AES XCBC MAC algorithm
 
 ``<auth_key>``
 
diff --git a/examples/ipsec-secgw/esp.c b/examples/ipsec-secgw/esp.c
index bd233752c8..b72a5604c8 100644
--- a/examples/ipsec-secgw/esp.c
+++ b/examples/ipsec-secgw/esp.c
@@ -100,6 +100,7 @@ esp_inbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 
 		switch (sa->cipher_algo) {
 		case RTE_CRYPTO_CIPHER_NULL:
+		case RTE_CRYPTO_CIPHER_DES_CBC:
 		case RTE_CRYPTO_CIPHER_3DES_CBC:
 		case RTE_CRYPTO_CIPHER_AES_CBC:
 			/* Copy IV at the end of crypto operation */
@@ -121,6 +122,7 @@ esp_inbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 		case RTE_CRYPTO_AUTH_NULL:
 		case RTE_CRYPTO_AUTH_SHA1_HMAC:
 		case RTE_CRYPTO_AUTH_SHA256_HMAC:
+		case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
 			sym_cop->auth.data.offset = ip_hdr_len;
 			sym_cop->auth.data.length = sizeof(struct rte_esp_hdr) +
 				sa->iv_len + payload_len;
@@ -336,6 +338,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 	} else {
 		switch (sa->cipher_algo) {
 		case RTE_CRYPTO_CIPHER_NULL:
+		case RTE_CRYPTO_CIPHER_DES_CBC:
 		case RTE_CRYPTO_CIPHER_3DES_CBC:
 		case RTE_CRYPTO_CIPHER_AES_CBC:
 			memset(iv, 0, sa->iv_len);
@@ -399,6 +402,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 	} else {
 		switch (sa->cipher_algo) {
 		case RTE_CRYPTO_CIPHER_NULL:
+		case RTE_CRYPTO_CIPHER_DES_CBC:
 		case RTE_CRYPTO_CIPHER_3DES_CBC:
 		case RTE_CRYPTO_CIPHER_AES_CBC:
 			sym_cop->cipher.data.offset = ip_hdr_len +
@@ -431,6 +435,7 @@ esp_outbound(struct rte_mbuf *m, struct ipsec_sa *sa,
 		case RTE_CRYPTO_AUTH_NULL:
 		case RTE_CRYPTO_AUTH_SHA1_HMAC:
 		case RTE_CRYPTO_AUTH_SHA256_HMAC:
+		case RTE_CRYPTO_AUTH_AES_XCBC_MAC:
 			sym_cop->auth.data.offset = ip_hdr_len;
 			sym_cop->auth.data.length = sizeof(struct rte_esp_hdr) +
 				sa->iv_len + pad_payload_len;
diff --git a/examples/ipsec-secgw/sa.c b/examples/ipsec-secgw/sa.c
index 3b0bc5a2cf..0b27f11fc0 100644
--- a/examples/ipsec-secgw/sa.c
+++ b/examples/ipsec-secgw/sa.c
@@ -119,6 +119,13 @@ const struct supported_cipher_algo cipher_algos[] = {
 		.iv_len = 8,
 		.block_size = 8,
 		.key_len = 24
+	},
+	{
+		.keyword = "des-cbc",
+		.algo = RTE_CRYPTO_CIPHER_DES_CBC,
+		.iv_len = 8,
+		.block_size = 8,
+		.key_len = 8
 	}
 };
 
@@ -1311,6 +1318,7 @@ sa_add_rules(struct sa_ctx *sa_ctx, const struct ipsec_sa entries[],
 		} else {
 			switch (sa->cipher_algo) {
 			case RTE_CRYPTO_CIPHER_NULL:
+			case RTE_CRYPTO_CIPHER_DES_CBC:
 			case RTE_CRYPTO_CIPHER_3DES_CBC:
 			case RTE_CRYPTO_CIPHER_AES_CBC:
 			case RTE_CRYPTO_CIPHER_AES_CTR:
-- 
2.25.1