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path: root/src/plugins/dpdk/ipsec/esp_decrypt.c
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Diffstat (limited to 'src/plugins/dpdk/ipsec/esp_decrypt.c')
-rw-r--r--src/plugins/dpdk/ipsec/esp_decrypt.c39
1 files changed, 14 insertions, 25 deletions
diff --git a/src/plugins/dpdk/ipsec/esp_decrypt.c b/src/plugins/dpdk/ipsec/esp_decrypt.c
index 6815f53e2b1..581e5b99cf9 100644
--- a/src/plugins/dpdk/ipsec/esp_decrypt.c
+++ b/src/plugins/dpdk/ipsec/esp_decrypt.c
@@ -264,7 +264,7 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
}
u32 cipher_off, cipher_len;
- u32 auth_len = 0, aad_size = 0;
+ u32 auth_len = 0;
u8 *aad = NULL;
u8 *iv = (u8 *) (esp0 + 1);
@@ -285,20 +285,19 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
u32 *_iv = (u32 *) iv;
crypto_set_icb (icb, sa0->salt, _iv[0], _iv[1]);
- iv_size = 12;
}
if (is_aead)
{
aad = priv->aad;
- clib_memcpy(aad, esp0, 8);
+ u32 * _aad = (u32 *) aad;
+ clib_memcpy (aad, esp0, 8);
+
+ /* _aad[3] should always be 0 */
if (PREDICT_FALSE (sa0->use_esn))
- {
- *((u32*)&aad[8]) = sa0->seq_hi;
- aad_size = 12;
- }
+ _aad[2] = clib_host_to_net_u32 (sa0->seq_hi);
else
- aad_size = 8;
+ _aad[2] = 0;
}
else
{
@@ -307,7 +306,8 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
if (sa0->use_esn)
{
clib_memcpy (priv->icv, digest, trunc_size);
- *((u32*) digest) = sa0->seq_hi;
+ u32 *_digest = (u32 *) digest;
+ _digest[0] = clib_host_to_net_u32 (sa0->seq_hi);
auth_len += sizeof(sa0->seq_hi);
digest = priv->icv;
@@ -316,10 +316,8 @@ dpdk_esp_decrypt_node_fn (vlib_main_t * vm,
}
}
- crypto_op_setup (is_aead, mb0, op, session,
- cipher_off, cipher_len, (u8 *) icb, iv_size,
- 0, auth_len, aad, aad_size,
- digest, digest_paddr, trunc_size);
+ crypto_op_setup (is_aead, mb0, op, session, cipher_off, cipher_len,
+ 0, auth_len, aad, digest, digest_paddr);
trace:
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
@@ -522,22 +520,13 @@ dpdk_esp_decrypt_post_node_fn (vlib_main_t * vm,
memmove(oh4, ih4, ih4_len);
next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
- u16 old_ttl_prot =
- ((u16) oh4->ttl) << 8 | (u16) oh4->protocol;
- u16 new_ttl_prot =
- ((u16) oh4->ttl) << 8 | (u16) f0->next_header;
oh4->protocol = f0->next_header;
- u16 new_len = clib_host_to_net_u16 (b0->current_length);
- oh4->length = new_len;
- /* rfc1264 incremental checksum update */
- oh4->checksum = ~(~oh4->checksum + ~oh4->length + new_len +
- ~old_ttl_prot + new_ttl_prot);
-
+ oh4->length = clib_host_to_net_u16 (b0->current_length);
+ oh4->checksum = ip4_header_checksum(oh4);
}
else if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
{
- /* FIXME find ip header */
- ih6 = (ip6_header_t *) (b0->data + sizeof(ethernet_header_t));
+ ih6 = (ip6_header_t *) ih4;
vlib_buffer_advance (b0, -sizeof(ip6_header_t));
oh6 = vlib_buffer_get_current (b0);
memmove(oh6, ih6, sizeof(ip6_header_t));