+static int ahash_export(struct ahash_request *areq, void *out)
+{
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+ struct talitos_export_state *export = out;
+
+ memcpy(export->hw_context, req_ctx->hw_context,
+ req_ctx->hw_context_size);
+ memcpy(export->buf, req_ctx->buf, req_ctx->nbuf);
+ export->swinit = req_ctx->swinit;
+ export->first = req_ctx->first;
+ export->last = req_ctx->last;
+ export->to_hash_later = req_ctx->to_hash_later;
+ export->nbuf = req_ctx->nbuf;
+
+ return 0;
+}
+
+static int ahash_import(struct ahash_request *areq, const void *in)
+{
+ struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ const struct talitos_export_state *export = in;
+
+ memset(req_ctx, 0, sizeof(*req_ctx));
+ req_ctx->hw_context_size =
+ (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
+ ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
+ : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
+ memcpy(req_ctx->hw_context, export->hw_context,
+ req_ctx->hw_context_size);
+ memcpy(req_ctx->buf, export->buf, export->nbuf);
+ req_ctx->swinit = export->swinit;
+ req_ctx->first = export->first;
+ req_ctx->last = export->last;
+ req_ctx->to_hash_later = export->to_hash_later;
+ req_ctx->nbuf = export->nbuf;
+
+ return 0;
+}
+