esp_decrypt_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->crypto_alg = sa0->crypto_alg;
tr->integ_alg = sa0->integ_alg;
esp_decrypt_trace_t *tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->crypto_alg = sa0->crypto_alg;
tr->integ_alg = sa0->integ_alg;