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author“mukeshyadav1984” <mukyadav@cisco.com>2017-11-28 10:52:34 -0800
committerDamjan Marion <dmarion.lists@gmail.com>2017-11-29 10:18:41 +0000
commit72454dd4c5196594b366883bbf732c9e067c64ec (patch)
tree7d3b1398317da09e3cd52cd45fef871857a11a6e /src/vnet/ipsec/esp_encrypt.c
parent176fd570e672e7307710e448eb51c08b7f9853d8 (diff)
DES-CBC/3DES-CBC support for VPP IPSec Core
Change-Id: I876f215b129e5e59d3acc6447ce40458cc341eba Signed-off-by: “mukeshyadav1984” <mukyadav@cisco.com>
Diffstat (limited to 'src/vnet/ipsec/esp_encrypt.c')
-rw-r--r--src/vnet/ipsec/esp_encrypt.c32
1 files changed, 19 insertions, 13 deletions
diff --git a/src/vnet/ipsec/esp_encrypt.c b/src/vnet/ipsec/esp_encrypt.c
index 3e196b34869..44a0451d29a 100644
--- a/src/vnet/ipsec/esp_encrypt.c
+++ b/src/vnet/ipsec/esp_encrypt.c
@@ -85,8 +85,8 @@ format_esp_encrypt_trace (u8 * s, va_list * args)
}
always_inline void
-esp_encrypt_aes_cbc (ipsec_crypto_alg_t alg,
- u8 * in, u8 * out, size_t in_len, u8 * key, u8 * iv)
+esp_encrypt_cbc (ipsec_crypto_alg_t alg,
+ u8 * in, u8 * out, size_t in_len, u8 * key, u8 * iv)
{
ipsec_proto_main_t *em = &ipsec_proto_main;
u32 thread_index = vlib_get_thread_index ();
@@ -125,6 +125,7 @@ esp_encrypt_node_fn (vlib_main_t * vm,
from = vlib_frame_vector_args (from_frame);
n_left_from = from_frame->n_vectors;
ipsec_main_t *im = &ipsec_main;
+ ipsec_proto_main_t *em = &ipsec_proto_main;
u32 *recycle = 0;
u32 thread_index = vlib_get_thread_index ();
@@ -306,8 +307,10 @@ esp_encrypt_node_fn (vlib_main_t * vm,
if (PREDICT_TRUE (sa0->crypto_alg != IPSEC_CRYPTO_ALG_NONE))
{
- const int BLOCK_SIZE = 16;
- const int IV_SIZE = 16;
+ const int BLOCK_SIZE =
+ em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].block_size;
+ const int IV_SIZE =
+ em->ipsec_proto_main_crypto_algs[sa0->crypto_alg].iv_size;
int blocks = 1 + (i_b0->current_length + 1) / BLOCK_SIZE;
/* pad packet in input buffer */
@@ -330,18 +333,21 @@ esp_encrypt_node_fn (vlib_main_t * vm,
vnet_buffer (o_b0)->sw_if_index[VLIB_RX] =
vnet_buffer (i_b0)->sw_if_index[VLIB_RX];
- u8 iv[16];
+ u8 iv[em->
+ ipsec_proto_main_crypto_algs[sa0->crypto_alg].iv_size];
RAND_bytes (iv, sizeof (iv));
clib_memcpy ((u8 *) vlib_buffer_get_current (o_b0) +
- ip_hdr_size + sizeof (esp_header_t), iv, 16);
-
- esp_encrypt_aes_cbc (sa0->crypto_alg,
- (u8 *) vlib_buffer_get_current (i_b0),
- (u8 *) vlib_buffer_get_current (o_b0) +
- ip_hdr_size + sizeof (esp_header_t) +
- IV_SIZE, BLOCK_SIZE * blocks,
- sa0->crypto_key, iv);
+ ip_hdr_size + sizeof (esp_header_t), iv,
+ em->ipsec_proto_main_crypto_algs[sa0->
+ crypto_alg].iv_size);
+
+ esp_encrypt_cbc (sa0->crypto_alg,
+ (u8 *) vlib_buffer_get_current (i_b0),
+ (u8 *) vlib_buffer_get_current (o_b0) +
+ ip_hdr_size + sizeof (esp_header_t) +
+ IV_SIZE, BLOCK_SIZE * blocks,
+ sa0->crypto_key, iv);
}
o_b0->current_length += hmac_calc (sa0->integ_alg, sa0->integ_key,