Handle error as specified in https://tools.ietf.org/html/draft-ietf-quic-http-29#section-7.2.4.2 : If a server accepts 0-RTT but then sends a SETTINGS frame that omits a setting value that the client understands (apart from reserved setting identifiers) that was previously specified to have a non-default value, this MUST be treated as a connection error of type H3_SETTINGS_ERROR.

Protected by quic_enable_zero_rtt_for_tls

PiperOrigin-RevId: 316781779
Change-Id: If4e174766bbd65be116f14a04449611963e03c2a

quic/core/quic_error_codes.cc

diff --git a/quic/core/quic_error_codes.cc b/quic/core/quic_error_codes.cc
index 4b2c737..4887525 100644
--- a/quic/core/quic_error_codes.cc
+++ b/quic/core/quic_error_codes.cc
@@ -203,6 +203,7 @@
     RETURN_STRING_LITERAL(QUIC_HTTP_DUPLICATE_SETTING_IDENTIFIER);
     RETURN_STRING_LITERAL(QUIC_HTTP_INVALID_MAX_PUSH_ID);
     RETURN_STRING_LITERAL(QUIC_HTTP_STREAM_LIMIT_TOO_LOW);
+    RETURN_STRING_LITERAL(QUIC_HTTP_ZERO_RTT_SETTINGS_MISMATCH);
     RETURN_STRING_LITERAL(QUIC_HPACK_INDEX_VARINT_ERROR);
     RETURN_STRING_LITERAL(QUIC_HPACK_NAME_LENGTH_VARINT_ERROR);
     RETURN_STRING_LITERAL(QUIC_HPACK_VALUE_LENGTH_VARINT_ERROR);
@@ -570,6 +571,8 @@
     case QUIC_HTTP_STREAM_LIMIT_TOO_LOW:
       return {false, static_cast<uint64_t>(
                          QuicHttp3ErrorCode::GENERAL_PROTOCOL_ERROR)};
+    case QUIC_HTTP_ZERO_RTT_SETTINGS_MISMATCH:
+      return {false, static_cast<uint64_t>(QuicHttp3ErrorCode::SETTINGS_ERROR)};
     case QUIC_HPACK_INDEX_VARINT_ERROR:
       return {true, static_cast<uint64_t>(INTERNAL_ERROR)};
     case QUIC_HPACK_NAME_LENGTH_VARINT_ERROR: