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authorChristian Hopps <chopps@labn.net>2019-11-03 01:02:18 -0400
committerDamjan Marion <dmarion@me.com>2019-11-07 21:39:40 +0000
commitd58419f19b33560d224471bc16674a525427308e (patch)
treeeeb78abb002c0e6d05b64d99280ab31aac989883 /src/plugins/dpdk/ipsec/esp_encrypt.c
parentbc2e640db7533394a3de7bdffd78fadf2a2ffd9f (diff)
dpdk: ipsec gcm fixes
- Fix AAD initialization. With use-esn the aad data consists of the SPI and the 64-bit sequence number in big-endian order. Fix the u32 swapped code. - Remove salt-reinitialization. The GCM code seems inspired by the GCM RFCs recommendations on IKE keydata and how to produce a salt value (create an extra 4 octets of keying material). This is not IKE code though and the SA already holds the configured salt value which this code is blowing away. Use the configured value instead. Type: fix Change-Id: I5e75518aa7c1d91037bb24b2a40fe4fc90bdfdb0 Signed-off-by: Christian Hopps <chopps@labn.net>
Diffstat (limited to 'src/plugins/dpdk/ipsec/esp_encrypt.c')
-rw-r--r--src/plugins/dpdk/ipsec/esp_encrypt.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/src/plugins/dpdk/ipsec/esp_encrypt.c b/src/plugins/dpdk/ipsec/esp_encrypt.c
index 1d29841c5d7..dd37f081a15 100644
--- a/src/plugins/dpdk/ipsec/esp_encrypt.c
+++ b/src/plugins/dpdk/ipsec/esp_encrypt.c
@@ -530,14 +530,19 @@ dpdk_esp_encrypt_inline (vlib_main_t * vm,
if (is_aead)
{
aad = (u32 *) priv->aad;
- aad[0] = clib_host_to_net_u32 (sa0->spi);
- aad[1] = clib_host_to_net_u32 (sa0->seq);
+ aad[0] = esp0->spi;
/* aad[3] should always be 0 */
if (PREDICT_FALSE (ipsec_sa_is_set_USE_ESN (sa0)))
- aad[2] = clib_host_to_net_u32 (sa0->seq_hi);
+ {
+ aad[1] = clib_host_to_net_u32 (sa0->seq_hi);
+ aad[2] = esp0->seq;
+ }
else
- aad[2] = 0;
+ {
+ aad[1] = esp0->seq;
+ aad[2] = 0;
+ }
}
else
{