diff options
Diffstat (limited to 'src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_transport_params.h')
| -rw-r--r-- | src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_transport_params.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_transport_params.h b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_transport_params.h new file mode 100644 index 0000000..9b0acb8 --- /dev/null +++ b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_transport_params.h @@ -0,0 +1,118 @@ +/* + * ngtcp2 + * + * Copyright (c) 2023 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. + */ +#ifndef NGTCP2_TRANSPORT_PARAMS_H +#define NGTCP2_TRANSPORT_PARAMS_H + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif /* HAVE_CONFIG_H */ + +#include <ngtcp2/ngtcp2.h> + +/* ngtcp2_transport_param_id is the registry of QUIC transport + parameter ID. */ +typedef uint64_t ngtcp2_transport_param_id; + +#define NGTCP2_TRANSPORT_PARAM_ORIGINAL_DESTINATION_CONNECTION_ID 0x00 +#define NGTCP2_TRANSPORT_PARAM_MAX_IDLE_TIMEOUT 0x01 +#define NGTCP2_TRANSPORT_PARAM_STATELESS_RESET_TOKEN 0x02 +#define NGTCP2_TRANSPORT_PARAM_MAX_UDP_PAYLOAD_SIZE 0x03 +#define NGTCP2_TRANSPORT_PARAM_INITIAL_MAX_DATA 0x04 +#define NGTCP2_TRANSPORT_PARAM_INITIAL_MAX_STREAM_DATA_BIDI_LOCAL 0x05 +#define NGTCP2_TRANSPORT_PARAM_INITIAL_MAX_STREAM_DATA_BIDI_REMOTE 0x06 +#define NGTCP2_TRANSPORT_PARAM_INITIAL_MAX_STREAM_DATA_UNI 0x07 +#define NGTCP2_TRANSPORT_PARAM_INITIAL_MAX_STREAMS_BIDI 0x08 +#define NGTCP2_TRANSPORT_PARAM_INITIAL_MAX_STREAMS_UNI 0x09 +#define NGTCP2_TRANSPORT_PARAM_ACK_DELAY_EXPONENT 0x0a +#define NGTCP2_TRANSPORT_PARAM_MAX_ACK_DELAY 0x0b +#define NGTCP2_TRANSPORT_PARAM_DISABLE_ACTIVE_MIGRATION 0x0c +#define NGTCP2_TRANSPORT_PARAM_PREFERRED_ADDRESS 0x0d +#define NGTCP2_TRANSPORT_PARAM_ACTIVE_CONNECTION_ID_LIMIT 0x0e +#define NGTCP2_TRANSPORT_PARAM_INITIAL_SOURCE_CONNECTION_ID 0x0f +#define NGTCP2_TRANSPORT_PARAM_RETRY_SOURCE_CONNECTION_ID 0x10 +/* https://datatracker.ietf.org/doc/html/rfc9221 */ +#define NGTCP2_TRANSPORT_PARAM_MAX_DATAGRAM_FRAME_SIZE 0x20 +#define NGTCP2_TRANSPORT_PARAM_GREASE_QUIC_BIT 0x2ab2 +/* https://datatracker.ietf.org/doc/html/rfc9368 */ +#define NGTCP2_TRANSPORT_PARAM_VERSION_INFORMATION 0x11 + +/* NGTCP2_MAX_STREAMS is the maximum number of streams. */ +#define NGTCP2_MAX_STREAMS (1LL << 60) + +/* + * ngtcp2_transport_params_copy_new makes a copy of |src|, and assigns + * it to |*pdest|. If |src| is NULL, NULL is assigned to |*pdest|. + * + * Caller is responsible to call ngtcp2_transport_params_del to free + * the memory assigned to |*pdest|. + * + * This function returns 0 if it succeeds, or one of the following + * negative error codes: + * + * NGTCP2_ERR_NOMEM + * Out of memory. + */ +int ngtcp2_transport_params_copy_new(ngtcp2_transport_params **pdest, + const ngtcp2_transport_params *src, + const ngtcp2_mem *mem); + +/* + * ngtcp2_transport_params_convert_to_latest converts |src| of version + * |transport_params_version| to the latest version + * NGTCP2_TRANSPORT_PARAMS_VERSION. + * + * |dest| must point to the latest version. |src| may be the older + * version, and if so, it may have fewer fields. Accessing those + * fields causes undefined behavior. + * + * If |transport_params_version| == NGTCP2_TRANSPORT_PARAMS_VERSION, + * no conversion is made, and |src| is returned. Otherwise, first + * |dest| is initialized via ngtcp2_transport_params_default, and then + * all valid fields in |src| are copied into |dest|. Finally, |dest| + * is returned. + */ +const ngtcp2_transport_params * +ngtcp2_transport_params_convert_to_latest(ngtcp2_transport_params *dest, + int transport_params_version, + const ngtcp2_transport_params *src); + +/* + * ngtcp2_transport_params_convert_to_old converts |src| of the latest + * version to |dest| of version |transport_params_version|. + * + * |transport_params_version| must not be the latest version + * NGTCP2_TRANSPORT_PARAMS_VERSION. + * + * |dest| points to the older version, and it may have fewer fields. + * Accessing those fields causes undefined behavior. + * + * This function copies all valid fields in version + * |transport_params_version| from |src| to |dest|. + */ +void ngtcp2_transport_params_convert_to_old(int transport_params_version, + ngtcp2_transport_params *dest, + const ngtcp2_transport_params *src); + +#endif /* NGTCP2_TRANSPORT_PARAMS_H */ |