typedef struct
{
- u32 spi;
+ union
+ {
+ u32 spi;
+ u8 spi_bytes[4];
+ };
u32 seq;
u8 data[0];
} esp_header_t;
return 0;
}
-
-always_inline unsigned int
-hmac_calc (vlib_main_t * vm, ipsec_sa_t * sa, u8 * data, int data_len,
- u8 * signature)
-{
- vnet_crypto_op_t _op, *op = &_op;
-
- if (PREDICT_FALSE (sa->integ_op_id == 0))
- return 0;
-
- vnet_crypto_op_init (op, sa->integ_op_id);
- op->key_index = sa->integ_key_index;
- op->src = data;
- op->len = data_len;
- op->digest = signature;
- op->digest_len = sa->integ_icv_size;
-
- if (ipsec_sa_is_set_USE_ESN (sa))
- {
- u32 seq_hi = clib_host_to_net_u32 (sa->seq_hi);
-
- op->len += 4;
- clib_memcpy (data + data_len, &seq_hi, 4);
- }
-
- vnet_crypto_process_ops (vm, op, 1);
- return sa->integ_icv_size;
-}
-
always_inline void
esp_aad_fill (vnet_crypto_op_t * op,
const esp_header_t * esp, const ipsec_sa_t * sa)
esp_aead_t *aad;
aad = (esp_aead_t *) op->aad;
- clib_memcpy_fast (aad, esp, 8);
+ aad->data[0] = esp->spi;
if (ipsec_sa_is_set_USE_ESN (sa))
{
/* SPI, seq-hi, seq-low */
- aad->data[2] = aad->data[1];
aad->data[1] = clib_host_to_net_u32 (sa->seq_hi);
+ aad->data[2] = esp->seq;
op->aad_len = 12;
}
else
- /* SPI, seq-low */
- op->aad_len = 8;
+ {
+ /* SPI, seq-low */
+ aad->data[1] = esp->seq;
+ op->aad_len = 8;
+ }
}
#endif /* __ESP_H__ */