+}
+
+static int
+quic_acquire_crypto_context (quic_ctx_t * ctx)
+{
+ quic_main_t *qm = &quic_main;
+ crypto_context_t *crctx;
+ clib_bihash_kv_24_8_t kv;
+
+ if (ctx->crypto_engine == CRYPTO_ENGINE_NONE)
+ {
+ QUIC_DBG (2, "No crypto engine specified, using %d",
+ qm->default_crypto_engine);
+ ctx->crypto_engine = qm->default_crypto_engine;
+ }
+ if (!clib_bitmap_get (qm->available_crypto_engines, ctx->crypto_engine))
+ {
+ QUIC_DBG (1, "Quic does not support crypto engine %d",
+ ctx->crypto_engine);
+ return VNET_API_ERROR_MISSING_CERT_KEY;
+ }
+
+ /* Check for exisiting crypto ctx */
+ quic_crypto_context_make_key_from_ctx (&kv, ctx);
+ if (clib_bihash_search_24_8
+ (&qm->wrk_ctx[ctx->c_thread_index].crypto_context_hash, &kv, &kv) == 0)
+ {
+ crctx = quic_crypto_context_get (kv.value, ctx->c_thread_index);
+ QUIC_DBG (2, "Found exisiting crypto context %d", kv.value);
+ ctx->crypto_context_index = kv.value;
+ crctx->n_subscribers++;
+ return 0;
+ }
+
+ crctx = quic_crypto_context_alloc (ctx->c_thread_index);
+ ctx->crypto_context_index = crctx->ctx_index;
+ kv.value = crctx->ctx_index;
+ crctx->crypto_engine = ctx->crypto_engine;
+ crctx->ckpair_index = ctx->ckpair_index;
+ if (quic_init_crypto_context (crctx, ctx))
+ goto error;
+ if (vnet_app_add_cert_key_interest (ctx->ckpair_index, qm->app_index))
+ goto error;
+ crctx->n_subscribers++;
+ clib_bihash_add_del_24_8 (&qm->
+ wrk_ctx[ctx->c_thread_index].crypto_context_hash,
+ &kv, 1 /* is_add */ );
+ return 0;
+