1 files changed, 154 insertions, 0 deletions
diff --git a/lib/ngtcp2_err.c b/lib/ngtcp2_err.c
new file mode 100644
index 0000000..8f676da
--- /dev/null
+++ b/lib/ngtcp2_err.c
@@ -0,0 +1,154 @@
+/*
+ * ngtcp2
+ *
+ * Copyright (c) 2017 ngtcp2 contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "ngtcp2_err.h"
+
+const char *ngtcp2_strerror(int liberr) {
+  switch (liberr) {
+  case 0:
+    return "NO_ERROR";
+  case NGTCP2_ERR_INVALID_ARGUMENT:
+    return "ERR_INVALID_ARGUMENT";
+  case NGTCP2_ERR_NOBUF:
+    return "ERR_NOBUF";
+  case NGTCP2_ERR_PROTO:
+    return "ERR_PROTO";
+  case NGTCP2_ERR_INVALID_STATE:
+    return "ERR_INVALID_STATE";
+  case NGTCP2_ERR_ACK_FRAME:
+    return "ERR_ACK_FRAME";
+  case NGTCP2_ERR_STREAM_ID_BLOCKED:
+    return "ERR_STREAM_ID_BLOCKED";
+  case NGTCP2_ERR_STREAM_IN_USE:
+    return "ERR_STREAM_IN_USE";
+  case NGTCP2_ERR_STREAM_DATA_BLOCKED:
+    return "ERR_STREAM_DATA_BLOCKED";
+  case NGTCP2_ERR_FLOW_CONTROL:
+    return "ERR_FLOW_CONTROL";
+  case NGTCP2_ERR_CONNECTION_ID_LIMIT:
+    return "ERR_CONNECTION_ID_LIMIT";
+  case NGTCP2_ERR_STREAM_LIMIT:
+    return "ERR_STREAM_LIMIT";
+  case NGTCP2_ERR_FINAL_SIZE:
+    return "ERR_FINAL_SIZE";
+  case NGTCP2_ERR_CRYPTO:
+    return "ERR_CRYPTO";
+  case NGTCP2_ERR_PKT_NUM_EXHAUSTED:
+    return "ERR_PKT_NUM_EXHAUSTED";
+  case NGTCP2_ERR_NOMEM:
+    return "ERR_NOMEM";
+  case NGTCP2_ERR_REQUIRED_TRANSPORT_PARAM:
+    return "ERR_REQUIRED_TRANSPORT_PARAM";
+  case NGTCP2_ERR_MALFORMED_TRANSPORT_PARAM:
+    return "ERR_MALFORMED_TRANSPORT_PARAM";
+  case NGTCP2_ERR_FRAME_ENCODING:
+    return "ERR_FRAME_ENCODING";
+  case NGTCP2_ERR_DECRYPT:
+    return "ERR_DECRYPT";
+  case NGTCP2_ERR_STREAM_SHUT_WR:
+    return "ERR_STREAM_SHUT_WR";
+  case NGTCP2_ERR_STREAM_NOT_FOUND:
+    return "ERR_STREAM_NOT_FOUND";
+  case NGTCP2_ERR_STREAM_STATE:
+    return "ERR_STREAM_STATE";
+  case NGTCP2_ERR_RECV_VERSION_NEGOTIATION:
+    return "ERR_RECV_VERSION_NEGOTIATION";
+  case NGTCP2_ERR_CLOSING:
+    return "ERR_CLOSING";
+  case NGTCP2_ERR_DRAINING:
+    return "ERR_DRAINING";
+  case NGTCP2_ERR_TRANSPORT_PARAM:
+    return "ERR_TRANSPORT_PARAM";
+  case NGTCP2_ERR_DISCARD_PKT:
+    return "ERR_DISCARD_PKT";
+  case NGTCP2_ERR_CONN_ID_BLOCKED:
+    return "ERR_CONN_ID_BLOCKED";
+  case NGTCP2_ERR_CALLBACK_FAILURE:
+    return "ERR_CALLBACK_FAILURE";
+  case NGTCP2_ERR_INTERNAL:
+    return "ERR_INTERNAL";
+  case NGTCP2_ERR_CRYPTO_BUFFER_EXCEEDED:
+    return "ERR_CRYPTO_BUFFER_EXCEEDED";
+  case NGTCP2_ERR_WRITE_MORE:
+    return "ERR_WRITE_MORE";
+  case NGTCP2_ERR_RETRY:
+    return "ERR_RETRY";
+  case NGTCP2_ERR_DROP_CONN:
+    return "ERR_DROP_CONN";
+  case NGTCP2_ERR_AEAD_LIMIT_REACHED:
+    return "ERR_AEAD_LIMIT_REACHED";
+  case NGTCP2_ERR_NO_VIABLE_PATH:
+    return "ERR_NO_VIABLE_PATH";
+  case NGTCP2_ERR_VERSION_NEGOTIATION:
+    return "ERR_VERSION_NEGOTIATION";
+  case NGTCP2_ERR_HANDSHAKE_TIMEOUT:
+    return "ERR_HANDSHAKE_TIMEOUT";
+  case NGTCP2_ERR_VERSION_NEGOTIATION_FAILURE:
+    return "ERR_VERSION_NEGOTIATION_FAILURE";
+  case NGTCP2_ERR_IDLE_CLOSE:
+    return "ERR_IDLE_CLOSE";
+  default:
+    return "(unknown)";
+  }
+}
+
+int ngtcp2_err_is_fatal(int liberr) { return liberr < NGTCP2_ERR_FATAL; }
+
+uint64_t ngtcp2_err_infer_quic_transport_error_code(int liberr) {
+  switch (liberr) {
+  case 0:
+    return NGTCP2_NO_ERROR;
+  case NGTCP2_ERR_ACK_FRAME:
+  case NGTCP2_ERR_FRAME_ENCODING:
+    return NGTCP2_FRAME_ENCODING_ERROR;
+  case NGTCP2_ERR_FLOW_CONTROL:
+    return NGTCP2_FLOW_CONTROL_ERROR;
+  case NGTCP2_ERR_CONNECTION_ID_LIMIT:
+    return NGTCP2_CONNECTION_ID_LIMIT_ERROR;
+  case NGTCP2_ERR_STREAM_LIMIT:
+    return NGTCP2_STREAM_LIMIT_ERROR;
+  case NGTCP2_ERR_FINAL_SIZE:
+    return NGTCP2_FINAL_SIZE_ERROR;
+  case NGTCP2_ERR_REQUIRED_TRANSPORT_PARAM:
+  case NGTCP2_ERR_MALFORMED_TRANSPORT_PARAM:
+  case NGTCP2_ERR_TRANSPORT_PARAM:
+    return NGTCP2_TRANSPORT_PARAMETER_ERROR;
+  case NGTCP2_ERR_INVALID_ARGUMENT:
+  case NGTCP2_ERR_NOMEM:
+  case NGTCP2_ERR_CALLBACK_FAILURE:
+    return NGTCP2_INTERNAL_ERROR;
+  case NGTCP2_ERR_STREAM_STATE:
+    return NGTCP2_STREAM_STATE_ERROR;
+  case NGTCP2_ERR_CRYPTO_BUFFER_EXCEEDED:
+    return NGTCP2_CRYPTO_BUFFER_EXCEEDED;
+  case NGTCP2_ERR_AEAD_LIMIT_REACHED:
+    return NGTCP2_AEAD_LIMIT_REACHED;
+  case NGTCP2_ERR_NO_VIABLE_PATH:
+    return NGTCP2_NO_VIABLE_PATH;
+  case NGTCP2_ERR_VERSION_NEGOTIATION_FAILURE:
+    return NGTCP2_VERSION_NEGOTIATION_ERROR_DRAFT;
+  default:
+    return NGTCP2_PROTOCOL_VIOLATION;
+  }
+}