diff options
| author |   “mukeshyadav1984” <mukyadav@cisco.com> | 2017-11-28 10:52:34 -0800 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-11-29 10:18:41 +0000 |
| commit | 72454dd4c5196594b366883bbf732c9e067c64ec (patch) | |
| tree | 7d3b1398317da09e3cd52cd45fef871857a11a6e /src/vnet/ipsec/esp_decrypt.c | |
| parent | 176fd570e672e7307710e448eb51c08b7f9853d8 (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_decrypt.c')
| -rw-r--r-- | src/vnet/ipsec/esp_decrypt.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/src/vnet/ipsec/esp_decrypt.c b/src/vnet/ipsec/esp_decrypt.c index fac40358f16..a769e6bd51a 100644 --- a/src/vnet/ipsec/esp_decrypt.c +++ b/src/vnet/ipsec/esp_decrypt.c @@ -81,8 +81,8 @@ format_esp_decrypt_trace (u8 * s, va_list * args) } always_inline void -esp_decrypt_aes_cbc (ipsec_crypto_alg_t alg, - u8 * in, u8 * out, size_t in_len, u8 * key, u8 * iv) +esp_decrypt_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 (); @@ -246,11 +246,15 @@ esp_decrypt_node_fn (vlib_main_t * vm, /* add old buffer to the recycle list */ vec_add1 (recycle, i_bi0); - if (sa0->crypto_alg >= IPSEC_CRYPTO_ALG_AES_CBC_128 && - sa0->crypto_alg <= IPSEC_CRYPTO_ALG_AES_CBC_256) + if ((sa0->crypto_alg >= IPSEC_CRYPTO_ALG_AES_CBC_128 && + sa0->crypto_alg <= IPSEC_CRYPTO_ALG_AES_CBC_256) || + (sa0->crypto_alg >= IPSEC_CRYPTO_ALG_DES_CBC && + sa0->crypto_alg <= IPSEC_CRYPTO_ALG_3DES_CBC)) { - 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; esp_footer_t *f0; u8 ip_hdr_size = 0; @@ -298,13 +302,13 @@ esp_decrypt_node_fn (vlib_main_t * vm, } } - esp_decrypt_aes_cbc (sa0->crypto_alg, - esp0->data + IV_SIZE, - (u8 *) vlib_buffer_get_current (o_b0) + - ip_hdr_size, BLOCK_SIZE * blocks, - sa0->crypto_key, esp0->data); + esp_decrypt_cbc (sa0->crypto_alg, + esp0->data + IV_SIZE, + (u8 *) vlib_buffer_get_current (o_b0) + + ip_hdr_size, BLOCK_SIZE * blocks, + sa0->crypto_key, esp0->data); - o_b0->current_length = (blocks * 16) - 2 + ip_hdr_size; + o_b0->current_length = (blocks * BLOCK_SIZE) - 2 + ip_hdr_size; o_b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID; f0 = (esp_footer_t *) ((u8 *) vlib_buffer_get_current (o_b0) + |