iv-org-mirror
/
litespeed-quic
mirror of https://gitea.invidious.io/iv-org/litespeed-quic.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
litespeed-quic/src/liblsquic/lsquic_parse_Q050.c

888 lines
26 KiB
C
Raw Permalink Blame History

/* Copyright (c) 2017 - 2022 LiteSpeed Technologies Inc. See LICENSE. */
/*
* lsquic_parse_Q050.c -- Parsing functions specific to GQUIC Q050
*/
#include <assert.h>
#include <errno.h>
#include <inttypes.h>
#include <string.h>
#include <sys/queue.h>
#ifndef WIN32
#include <sys/types.h>
#else
#include <vc_compat.h>
#endif
#include "lsquic_types.h"
#include "lsquic_int_types.h"
#include "lsquic_packet_common.h"
#include "lsquic_packet_in.h"
#include "lsquic_packet_out.h"
#include "lsquic_parse.h"
#include "lsquic_parse_common.h"
#include "lsquic_version.h"
#include "lsquic.h"
#include "lsquic_parse_gquic_be.h"
#include "lsquic_parse_ietf.h"
#include "lsquic_byteswap.h"
#include "lsquic_hash.h"
#include "lsquic_conn.h"
#include "lsquic_varint.h"
#include "lsquic_enc_sess.h"
#define LSQUIC_LOGGER_MODULE LSQLM_PARSE
#include "lsquic_logger.h"
/* [draft-ietf-quic-transport-24] Section-17.2 */
static const enum header_type bits2ht[4] =
{
[0] = HETY_INITIAL,
[1] = HETY_0RTT,
[2] = HETY_HANDSHAKE,
[3] = HETY_RETRY,
};
int
lsquic_Q050_parse_packet_in_long_begin (struct lsquic_packet_in *packet_in,
size_t length, int is_server, unsigned cid_len,
struct packin_parse_state *state)
{
const unsigned char *p = packet_in->pi_data;
const unsigned char *const end = p + length;
lsquic_ver_tag_t tag;
enum header_type header_type;
unsigned dcil, scil, odcil;
int verneg, r;
unsigned char first_byte;
uint64_t payload_len, token_len;
if (length < 6)
return -1;
first_byte = *p++;
memcpy(&tag, p, 4);
p += 4;
verneg = 0 == tag;
if (!verneg)
header_type = bits2ht[ (first_byte >> 4) & 3 ];
else
header_type = HETY_VERNEG;
packet_in->pi_header_type = header_type;
dcil = *p++;
if (p + dcil >= end || dcil > MAX_CID_LEN)
return -1;
if (dcil)
{
memcpy(packet_in->pi_dcid.idbuf, p, dcil);
packet_in->pi_flags |= PI_CONN_ID;
p += dcil;
packet_in->pi_dcid.len = dcil;
}
scil = *p++;
if (p + scil > end || scil > MAX_CID_LEN)
return -1;
if (scil)
{
memcpy(packet_in->pi_dcid.idbuf, p, scil);
packet_in->pi_flags |= PI_CONN_ID;
p += scil;
packet_in->pi_dcid.len = scil;
}
if (is_server)
{
if (scil)
return -1;
}
else
if (dcil)
return -1;
switch (header_type)
{
case HETY_INITIAL:
r = vint_read(p, end, &token_len);
if (r < 0)
return -1;
if (token_len && !is_server)
{
/* From [draft-ietf-quic-transport-14]:
*
* Token Length: A variable-length integer specifying the
* length of the Token field, in bytes. This value is zero
* if no token is present. Initial packets sent by the
* server MUST set the Token Length field to zero; clients
* that receive an Initial packet with a non-zero Token
* Length field MUST either discard the packet or generate
* a connection error of type PROTOCOL_VIOLATION.
*/
return -1;
}
p += r;
if (token_len)
{
if (token_len >=
1ull << (sizeof(packet_in->pi_token_size) * 8))
return -1;
if (p + token_len > end)
return -1;
packet_in->pi_token = p - packet_in->pi_data;
packet_in->pi_token_size = token_len;
p += token_len;
}
/* fall-through */
case HETY_HANDSHAKE:
case HETY_0RTT:
if (p >= end)
return -1;
r = vint_read(p, end, &payload_len);
if (r < 0)
return -1;
p += r;
if (p - packet_in->pi_data + payload_len > length)
return -1;
length = p - packet_in->pi_data + payload_len;
if (end - p < 4)
return -1;
state->pps_p = p - r;
state->pps_nbytes = r;
packet_in->pi_quic_ver = 1;
break;
case HETY_RETRY:
if (p >= end)
return -1;
odcil = *p++;
if (p + odcil > end || odcil > MAX_CID_LEN)
return -1;
packet_in->pi_odcid_len = odcil;
packet_in->pi_odcid = p - packet_in->pi_data;
p += odcil;
packet_in->pi_token = p - packet_in->pi_data;
packet_in->pi_token_size = end - p;
p = end;
length = end - packet_in->pi_data;
state->pps_p = NULL;
state->pps_nbytes = 0;
packet_in->pi_quic_ver = 1;
break;
default:
assert(header_type == HETY_VERNEG);
if (p >= end || (3 & (uintptr_t) (end - p)))
return -1;
packet_in->pi_quic_ver = p - packet_in->pi_data;
p = end;
state->pps_p = NULL;
state->pps_nbytes = 0;
break;
}
packet_in->pi_header_sz = p - packet_in->pi_data;
packet_in->pi_data_sz = length;
packet_in->pi_nonce = 0;
packet_in->pi_refcnt = 0;
packet_in->pi_frame_types = 0;
memset(&packet_in->pi_next, 0, sizeof(packet_in->pi_next));
packet_in->pi_refcnt = 0;
packet_in->pi_received = 0;
/* Packet number is set to an invalid value. The packet number must
* be decrypted, which happens later.
*/
packet_in->pi_packno = 1ULL << 62;
return 0;
}
static unsigned
gquic_Q050_packno_bits2len (enum packno_bits bits)
{
return bits + 1;
}
#define iquic_packno_bits2len gquic_Q050_packno_bits2len
static enum packno_bits
gquic_Q050_calc_packno_bits (lsquic_packno_t packno,
lsquic_packno_t least_unacked, uint64_t n_in_flight)
{
uint64_t delta;
unsigned bits;
delta = packno - least_unacked;
if (n_in_flight > delta)
delta = n_in_flight;
delta *= 4;
bits = (delta >= (1ULL << 8))
+ (delta >= (1ULL << 16))
+ (delta >= (1ULL << 24))
;
return bits;
}
static unsigned
write_packno (unsigned char *p, lsquic_packno_t packno, enum packno_bits bits)
{
unsigned char *const begin = p;
switch (bits)
{
case IQUIC_PACKNO_LEN_4:
*p++ = packno >> 24;
/* fall-through */
case IQUIC_PACKNO_LEN_3:
*p++ = packno >> 16;
/* fall-through */
case IQUIC_PACKNO_LEN_2:
*p++ = packno >> 8;
/* fall-through */
default:
*p++ = packno;
}
return p - begin;
}
static int
gen_short_pkt_header (const struct lsquic_conn *lconn,
const struct lsquic_packet_out *packet_out, unsigned char *buf,
size_t bufsz, unsigned *packno_off_p, unsigned *packno_len_p)
{
unsigned packno_len, need;
enum packno_bits bits;
unsigned char *p = buf;
bits = lsquic_packet_out_packno_bits(packet_out);
packno_len = iquic_packno_bits2len(bits);
if (lconn->cn_flags & LSCONN_SERVER)
need = 1 + packno_len;
else
need = 1 + 8 /* CID */ + packno_len;
if (need > bufsz)
return -1;
*p++ = 0x40 | bits;
if (0 == (lconn->cn_flags & LSCONN_SERVER))
{
memcpy(p, lconn->cn_cid.idbuf, 8);
p += 8;
}
*packno_off_p = p - buf;
*packno_len_p = packno_len;
(void) write_packno(p, packet_out->po_packno, bits);
return need;
}
static size_t
gquic_Q050_packout_header_size_long_by_flags (const struct lsquic_conn *lconn,
enum packet_out_flags flags)
{
size_t sz;
enum packno_bits packno_bits;
packno_bits = (flags >> POBIT_SHIFT) & 0x3;
sz = 1 /* Type */
+ 4 /* Version */
+ 1 /* DCIL */
+ 1 /* SCIL */
+ lconn->cn_cid.len
+ 1 /* Token length: only use for Initial packets, while token is never
* set in this version.
*/
+ (flags & PO_NONCE ? DNONC_LENGTH : 0)
+ 2 /* Always use two bytes to encode payload length */
+ iquic_packno_bits2len(packno_bits)
;
return sz;
}
/* [draft-ietf-quic-transport-17] Section-17.2 */
static const unsigned char header_type_to_bin[] = {
[HETY_INITIAL] = 0x0,
[HETY_0RTT] = 0x1,
[HETY_HANDSHAKE] = 0x2,
[HETY_RETRY] = 0x3,
};
static size_t
gquic_Q050_packout_header_size_long_by_packet (const struct lsquic_conn *lconn,
const struct lsquic_packet_out *packet_out)
{
size_t sz;
enum packno_bits packno_bits;
packno_bits = lsquic_packet_out_packno_bits(packet_out);
sz = 1 /* Type */
+ 4 /* Version */
+ 1 /* DCIL */
+ 1 /* SCIL */
+ lconn->cn_cid.len
/* Token is never sent, but token length byte is used */
+ (packet_out->po_header_type == HETY_INITIAL)
+ 2 /* Always use two bytes to encode payload length */
+ iquic_packno_bits2len(packno_bits)
+ (packet_out->po_nonce ? DNONC_LENGTH : 0)
;
return sz;
}
static int
gquic_Q050_gen_long_pkt_header (const struct lsquic_conn *lconn,
const struct lsquic_packet_out *packet_out, unsigned char *buf,
size_t bufsz, unsigned *packno_off_p, unsigned *packno_len_p)
{
enum packno_bits packno_bits;
lsquic_ver_tag_t ver_tag;
unsigned token_len, payload_len, bits;
unsigned char *p;
size_t need;
need = gquic_Q050_packout_header_size_long_by_packet(lconn, packet_out);
if (need > bufsz)
{
errno = EINVAL;
return -1;
}
packno_bits = lsquic_packet_out_packno_bits(packet_out);
p = buf;
*p++ = 0x80 | 0x40
| (header_type_to_bin[ packet_out->po_header_type ] << 4)
| packno_bits;
ver_tag = lsquic_ver2tag(lconn->cn_version);
memcpy(p, &ver_tag, sizeof(ver_tag));
p += sizeof(ver_tag);
if (lconn->cn_flags & LSCONN_SERVER)
{
*p++ = 0;
*p++ = lconn->cn_cid.len;
memcpy(p, lconn->cn_cid.idbuf, lconn->cn_cid.len);
p += lconn->cn_cid.len;
}
else
{
*p++ = lconn->cn_cid.len;
memcpy(p, lconn->cn_cid.idbuf, lconn->cn_cid.len);
p += lconn->cn_cid.len;
*p++ = 0;
}
if (HETY_INITIAL == packet_out->po_header_type)
{
token_len = packet_out->po_token_len;
bits = vint_val2bits(token_len);
vint_write(p, token_len, bits, 1 << bits);
p += 1 << bits;
memcpy(p, packet_out->po_token, token_len);
p += token_len;
}
payload_len = packet_out->po_data_sz
+ lconn->cn_esf_c->esf_tag_len
+ iquic_packno_bits2len(packno_bits);
if (packet_out->po_nonce)
payload_len += DNONC_LENGTH;
bits = 1; /* Always use two bytes to encode payload length */
vint_write(p, payload_len, bits, 1 << bits);
p += 1 << bits;
*packno_off_p = p - buf;
*packno_len_p = iquic_packno_bits2len(packno_bits);
p += write_packno(p, packet_out->po_packno, packno_bits);
if (packet_out->po_nonce)
{
memcpy(p, packet_out->po_nonce, DNONC_LENGTH);
p += DNONC_LENGTH;
}
assert(need == (size_t) (p - buf));
return p - buf;
}
static int
gquic_Q050_gen_reg_pkt_header (const struct lsquic_conn *lconn,
const struct lsquic_packet_out *packet_out, unsigned char *buf,
size_t bufsz, unsigned *packno_off, unsigned *packno_len)
{
if (0 == (packet_out->po_flags & PO_LONGHEAD))
return gen_short_pkt_header(lconn, packet_out, buf, bufsz,
packno_off, packno_len);
else
return gquic_Q050_gen_long_pkt_header(lconn, packet_out, buf, bufsz,
packno_off, packno_len);
}
static size_t
gquic_Q050_packout_header_size_short (const struct lsquic_conn *lconn,
enum packet_out_flags flags)
{
enum packno_bits bits;
size_t sz;
bits = (flags >> POBIT_SHIFT) & 0x3;
sz = 1; /* Type */
sz += (lconn->cn_flags & LSCONN_SERVER) ? 0 : 8;
sz += iquic_packno_bits2len(bits);
return sz;
}
static size_t
gquic_Q050_packout_max_header_size (const struct lsquic_conn *lconn,
enum packet_out_flags flags, size_t dcid_len_unused,
enum header_type unused)
{
if (lconn->cn_flags & LSCONN_SERVER)
{
if (0 == (flags & PO_LONGHEAD))
return gquic_Q050_packout_header_size_short(lconn, flags);
else
return gquic_Q050_packout_header_size_long_by_flags(lconn, flags);
}
else
{
if (lconn->cn_flags & LSCONN_HANDSHAKE_DONE)
return gquic_Q050_packout_header_size_short(lconn, flags);
else
return gquic_Q050_packout_header_size_long_by_flags(lconn, flags);
}
}
static size_t
gquic_Q050_packout_size (const struct lsquic_conn *lconn,
const struct lsquic_packet_out *packet_out)
{
size_t sz;
if ((lconn->cn_flags & LSCONN_HANDSHAKE_DONE)
&& packet_out->po_header_type == HETY_SHORT)
sz = gquic_Q050_packout_header_size_short(lconn, packet_out->po_flags);
else
sz = gquic_Q050_packout_header_size_long_by_packet(lconn, packet_out);
sz += packet_out->po_data_sz;
sz += lconn->cn_esf_c->esf_tag_len;
return sz;
}
static void
gquic_Q050_parse_packet_in_finish (struct lsquic_packet_in *packet_in,
struct packin_parse_state *state)
{
}
/* Same as Q046 plus CRYPTO frame at slot 8 */
static const enum quic_frame_type byte2frame_type_Q050[0x100] =
{
[0x00] = QUIC_FRAME_PADDING,
[0x01] = QUIC_FRAME_RST_STREAM,
[0x02] = QUIC_FRAME_CONNECTION_CLOSE,
[0x03] = QUIC_FRAME_GOAWAY,
[0x04] = QUIC_FRAME_WINDOW_UPDATE,
[0x05] = QUIC_FRAME_BLOCKED,
[0x06] = QUIC_FRAME_STOP_WAITING,
[0x07] = QUIC_FRAME_PING,
[0x08] = QUIC_FRAME_CRYPTO,
[0x09] = QUIC_FRAME_INVALID,
[0x0A] = QUIC_FRAME_INVALID,
[0x0B] = QUIC_FRAME_INVALID,
[0x0C] = QUIC_FRAME_INVALID,
[0x0D] = QUIC_FRAME_INVALID,
[0x0E] = QUIC_FRAME_INVALID,
[0x0F] = QUIC_FRAME_INVALID,
[0x10] = QUIC_FRAME_INVALID,
[0x11] = QUIC_FRAME_INVALID,
[0x12] = QUIC_FRAME_INVALID,
[0x13] = QUIC_FRAME_INVALID,
[0x14] = QUIC_FRAME_INVALID,
[0x15] = QUIC_FRAME_INVALID,
[0x16] = QUIC_FRAME_INVALID,
[0x17] = QUIC_FRAME_INVALID,
[0x18] = QUIC_FRAME_INVALID,
[0x19] = QUIC_FRAME_INVALID,
[0x1A] = QUIC_FRAME_INVALID,
[0x1B] = QUIC_FRAME_INVALID,
[0x1C] = QUIC_FRAME_INVALID,
[0x1D] = QUIC_FRAME_INVALID,
[0x1E] = QUIC_FRAME_INVALID,
[0x1F] = QUIC_FRAME_INVALID,
[0x20] = QUIC_FRAME_INVALID,
[0x21] = QUIC_FRAME_INVALID,
[0x22] = QUIC_FRAME_INVALID,
[0x23] = QUIC_FRAME_INVALID,
[0x24] = QUIC_FRAME_INVALID,
[0x25] = QUIC_FRAME_INVALID,
[0x26] = QUIC_FRAME_INVALID,
[0x27] = QUIC_FRAME_INVALID,
[0x28] = QUIC_FRAME_INVALID,
[0x29] = QUIC_FRAME_INVALID,
[0x2A] = QUIC_FRAME_INVALID,
[0x2B] = QUIC_FRAME_INVALID,
[0x2C] = QUIC_FRAME_INVALID,
[0x2D] = QUIC_FRAME_INVALID,
[0x2E] = QUIC_FRAME_INVALID,
[0x2F] = QUIC_FRAME_INVALID,
[0x30] = QUIC_FRAME_INVALID,
[0x31] = QUIC_FRAME_INVALID,
[0x32] = QUIC_FRAME_INVALID,
[0x33] = QUIC_FRAME_INVALID,
[0x34] = QUIC_FRAME_INVALID,
[0x35] = QUIC_FRAME_INVALID,
[0x36] = QUIC_FRAME_INVALID,
[0x37] = QUIC_FRAME_INVALID,
[0x38] = QUIC_FRAME_INVALID,
[0x39] = QUIC_FRAME_INVALID,
[0x3A] = QUIC_FRAME_INVALID,
[0x3B] = QUIC_FRAME_INVALID,
[0x3C] = QUIC_FRAME_INVALID,
[0x3D] = QUIC_FRAME_INVALID,
[0x3E] = QUIC_FRAME_INVALID,
[0x3F] = QUIC_FRAME_INVALID,
[0x40] = QUIC_FRAME_ACK,
[0x41] = QUIC_FRAME_ACK,
[0x42] = QUIC_FRAME_ACK,
[0x43] = QUIC_FRAME_ACK,
[0x44] = QUIC_FRAME_ACK,
[0x45] = QUIC_FRAME_ACK,
[0x46] = QUIC_FRAME_ACK,
[0x47] = QUIC_FRAME_ACK,
[0x48] = QUIC_FRAME_ACK,
[0x49] = QUIC_FRAME_ACK,
[0x4A] = QUIC_FRAME_ACK,
[0x4B] = QUIC_FRAME_ACK,
[0x4C] = QUIC_FRAME_ACK,
[0x4D] = QUIC_FRAME_ACK,
[0x4E] = QUIC_FRAME_ACK,
[0x4F] = QUIC_FRAME_ACK,
[0x50] = QUIC_FRAME_ACK,
[0x51] = QUIC_FRAME_ACK,
[0x52] = QUIC_FRAME_ACK,
[0x53] = QUIC_FRAME_ACK,
[0x54] = QUIC_FRAME_ACK,
[0x55] = QUIC_FRAME_ACK,
[0x56] = QUIC_FRAME_ACK,
[0x57] = QUIC_FRAME_ACK,
[0x58] = QUIC_FRAME_ACK,
[0x59] = QUIC_FRAME_ACK,
[0x5A] = QUIC_FRAME_ACK,
[0x5B] = QUIC_FRAME_ACK,
[0x5C] = QUIC_FRAME_ACK,
[0x5D] = QUIC_FRAME_ACK,
[0x5E] = QUIC_FRAME_ACK,
[0x5F] = QUIC_FRAME_ACK,
[0x60] = QUIC_FRAME_ACK,
[0x61] = QUIC_FRAME_ACK,
[0x62] = QUIC_FRAME_ACK,
[0x63] = QUIC_FRAME_ACK,
[0x64] = QUIC_FRAME_ACK,
[0x65] = QUIC_FRAME_ACK,
[0x66] = QUIC_FRAME_ACK,
[0x67] = QUIC_FRAME_ACK,
[0x68] = QUIC_FRAME_ACK,
[0x69] = QUIC_FRAME_ACK,
[0x6A] = QUIC_FRAME_ACK,
[0x6B] = QUIC_FRAME_ACK,
[0x6C] = QUIC_FRAME_ACK,
[0x6D] = QUIC_FRAME_ACK,
[0x6E] = QUIC_FRAME_ACK,
[0x6F] = QUIC_FRAME_ACK,
[0x70] = QUIC_FRAME_ACK,
[0x71] = QUIC_FRAME_ACK,
[0x72] = QUIC_FRAME_ACK,
[0x73] = QUIC_FRAME_ACK,
[0x74] = QUIC_FRAME_ACK,
[0x75] = QUIC_FRAME_ACK,
[0x76] = QUIC_FRAME_ACK,
[0x77] = QUIC_FRAME_ACK,
[0x78] = QUIC_FRAME_ACK,
[0x79] = QUIC_FRAME_ACK,
[0x7A] = QUIC_FRAME_ACK,
[0x7B] = QUIC_FRAME_ACK,
[0x7C] = QUIC_FRAME_ACK,
[0x7D] = QUIC_FRAME_ACK,
[0x7E] = QUIC_FRAME_ACK,
[0x7F] = QUIC_FRAME_ACK,
[0x80] = QUIC_FRAME_STREAM,
[0x81] = QUIC_FRAME_STREAM,
[0x82] = QUIC_FRAME_STREAM,
[0x83] = QUIC_FRAME_STREAM,
[0x84] = QUIC_FRAME_STREAM,
[0x85] = QUIC_FRAME_STREAM,
[0x86] = QUIC_FRAME_STREAM,
[0x87] = QUIC_FRAME_STREAM,
[0x88] = QUIC_FRAME_STREAM,
[0x89] = QUIC_FRAME_STREAM,
[0x8A] = QUIC_FRAME_STREAM,
[0x8B] = QUIC_FRAME_STREAM,
[0x8C] = QUIC_FRAME_STREAM,
[0x8D] = QUIC_FRAME_STREAM,
[0x8E] = QUIC_FRAME_STREAM,
[0x8F] = QUIC_FRAME_STREAM,
[0x90] = QUIC_FRAME_STREAM,
[0x91] = QUIC_FRAME_STREAM,
[0x92] = QUIC_FRAME_STREAM,
[0x93] = QUIC_FRAME_STREAM,
[0x94] = QUIC_FRAME_STREAM,
[0x95] = QUIC_FRAME_STREAM,
[0x96] = QUIC_FRAME_STREAM,
[0x97] = QUIC_FRAME_STREAM,
[0x98] = QUIC_FRAME_STREAM,
[0x99] = QUIC_FRAME_STREAM,
[0x9A] = QUIC_FRAME_STREAM,
[0x9B] = QUIC_FRAME_STREAM,
[0x9C] = QUIC_FRAME_STREAM,
[0x9D] = QUIC_FRAME_STREAM,
[0x9E] = QUIC_FRAME_STREAM,
[0x9F] = QUIC_FRAME_STREAM,
[0xA0] = QUIC_FRAME_STREAM,
[0xA1] = QUIC_FRAME_STREAM,
[0xA2] = QUIC_FRAME_STREAM,
[0xA3] = QUIC_FRAME_STREAM,
[0xA4] = QUIC_FRAME_STREAM,
[0xA5] = QUIC_FRAME_STREAM,
[0xA6] = QUIC_FRAME_STREAM,
[0xA7] = QUIC_FRAME_STREAM,
[0xA8] = QUIC_FRAME_STREAM,
[0xA9] = QUIC_FRAME_STREAM,
[0xAA] = QUIC_FRAME_STREAM,
[0xAB] = QUIC_FRAME_STREAM,
[0xAC] = QUIC_FRAME_STREAM,
[0xAD] = QUIC_FRAME_STREAM,
[0xAE] = QUIC_FRAME_STREAM,
[0xAF] = QUIC_FRAME_STREAM,
[0xB0] = QUIC_FRAME_STREAM,
[0xB1] = QUIC_FRAME_STREAM,
[0xB2] = QUIC_FRAME_STREAM,
[0xB3] = QUIC_FRAME_STREAM,
[0xB4] = QUIC_FRAME_STREAM,
[0xB5] = QUIC_FRAME_STREAM,
[0xB6] = QUIC_FRAME_STREAM,
[0xB7] = QUIC_FRAME_STREAM,
[0xB8] = QUIC_FRAME_STREAM,
[0xB9] = QUIC_FRAME_STREAM,
[0xBA] = QUIC_FRAME_STREAM,
[0xBB] = QUIC_FRAME_STREAM,
[0xBC] = QUIC_FRAME_STREAM,
[0xBD] = QUIC_FRAME_STREAM,
[0xBE] = QUIC_FRAME_STREAM,
[0xBF] = QUIC_FRAME_STREAM,
[0xC0] = QUIC_FRAME_STREAM,
[0xC1] = QUIC_FRAME_STREAM,
[0xC2] = QUIC_FRAME_STREAM,
[0xC3] = QUIC_FRAME_STREAM,
[0xC4] = QUIC_FRAME_STREAM,
[0xC5] = QUIC_FRAME_STREAM,
[0xC6] = QUIC_FRAME_STREAM,
[0xC7] = QUIC_FRAME_STREAM,
[0xC8] = QUIC_FRAME_STREAM,
[0xC9] = QUIC_FRAME_STREAM,
[0xCA] = QUIC_FRAME_STREAM,
[0xCB] = QUIC_FRAME_STREAM,
[0xCC] = QUIC_FRAME_STREAM,
[0xCD] = QUIC_FRAME_STREAM,
[0xCE] = QUIC_FRAME_STREAM,
[0xCF] = QUIC_FRAME_STREAM,
[0xD0] = QUIC_FRAME_STREAM,
[0xD1] = QUIC_FRAME_STREAM,
[0xD2] = QUIC_FRAME_STREAM,
[0xD3] = QUIC_FRAME_STREAM,
[0xD4] = QUIC_FRAME_STREAM,
[0xD5] = QUIC_FRAME_STREAM,
[0xD6] = QUIC_FRAME_STREAM,
[0xD7] = QUIC_FRAME_STREAM,
[0xD8] = QUIC_FRAME_STREAM,
[0xD9] = QUIC_FRAME_STREAM,
[0xDA] = QUIC_FRAME_STREAM,
[0xDB] = QUIC_FRAME_STREAM,
[0xDC] = QUIC_FRAME_STREAM,
[0xDD] = QUIC_FRAME_STREAM,
[0xDE] = QUIC_FRAME_STREAM,
[0xDF] = QUIC_FRAME_STREAM,
[0xE0] = QUIC_FRAME_STREAM,
[0xE1] = QUIC_FRAME_STREAM,
[0xE2] = QUIC_FRAME_STREAM,
[0xE3] = QUIC_FRAME_STREAM,
[0xE4] = QUIC_FRAME_STREAM,
[0xE5] = QUIC_FRAME_STREAM,
[0xE6] = QUIC_FRAME_STREAM,
[0xE7] = QUIC_FRAME_STREAM,
[0xE8] = QUIC_FRAME_STREAM,
[0xE9] = QUIC_FRAME_STREAM,
[0xEA] = QUIC_FRAME_STREAM,
[0xEB] = QUIC_FRAME_STREAM,
[0xEC] = QUIC_FRAME_STREAM,
[0xED] = QUIC_FRAME_STREAM,
[0xEE] = QUIC_FRAME_STREAM,
[0xEF] = QUIC_FRAME_STREAM,
[0xF0] = QUIC_FRAME_STREAM,
[0xF1] = QUIC_FRAME_STREAM,
[0xF2] = QUIC_FRAME_STREAM,
[0xF3] = QUIC_FRAME_STREAM,
[0xF4] = QUIC_FRAME_STREAM,
[0xF5] = QUIC_FRAME_STREAM,
[0xF6] = QUIC_FRAME_STREAM,
[0xF7] = QUIC_FRAME_STREAM,
[0xF8] = QUIC_FRAME_STREAM,
[0xF9] = QUIC_FRAME_STREAM,
[0xFA] = QUIC_FRAME_STREAM,
[0xFB] = QUIC_FRAME_STREAM,
[0xFC] = QUIC_FRAME_STREAM,
[0xFD] = QUIC_FRAME_STREAM,
[0xFE] = QUIC_FRAME_STREAM,
[0xFF] = QUIC_FRAME_STREAM,
};
static enum quic_frame_type
gquic_Q050_parse_frame_type (const unsigned char *buf, size_t len)
{
if (len > 0)
return byte2frame_type_Q050[buf[0]];
else
return QUIC_FRAME_INVALID;
}
static int
gquic_Q050_gen_crypto_frame (unsigned char *buf, size_t buf_len,
lsquic_stream_id_t stream_id, uint64_t offset, int fin,
size_t size, gsf_read_f gsf_read, void *stream)
{
return lsquic_ietf_v1_gen_crypto_frame(buf, 0x8, buf_len, stream_id,
offset, fin, size, gsf_read, stream);
}
static int
gquic_Q050_parse_crypto_frame (const unsigned char *buf, size_t rem_packet_sz,
struct stream_frame *stream_frame)
{
if (rem_packet_sz > 0)
{
assert(0x08 == buf[0]);
return lsquic_ietf_v1_parse_crypto_frame(buf, rem_packet_sz,
stream_frame);
}
else
return -1;
}
static size_t
gquic_Q050_calc_crypto_frame_header_sz (uint64_t offset, unsigned data_sz)
{
return 1 /* Frame type */
+ (1 << vint_val2bits(offset))
+ (1 << vint_val2bits(data_sz))
;
}
/* No simple PRST for Q050 */
static ssize_t
gquic_Q050_generate_simple_prst (const lsquic_cid_t *cidp, unsigned char *buf,
size_t buf_sz)
{
return -1;
}
static unsigned
gquic_Q050_handshake_done_frame_size (void)
{
return 0;
}
static int
gquic_Q050_gen_handshake_done_frame (unsigned char *buf, size_t buf_len)
{
return -1;
}
static int
gquic_Q050_parse_handshake_done_frame (const unsigned char *buf, size_t buf_len)
{
return -1;
}
const struct parse_funcs lsquic_parse_funcs_gquic_Q050 =
{
.pf_gen_reg_pkt_header = gquic_Q050_gen_reg_pkt_header,
.pf_parse_packet_in_finish = gquic_Q050_parse_packet_in_finish,
.pf_gen_stream_frame = lsquic_gquic_be_gen_stream_frame,
.pf_calc_stream_frame_header_sz = lsquic_calc_stream_frame_header_sz_gquic,
.pf_parse_stream_frame = lsquic_gquic_be_parse_stream_frame,
.pf_dec_stream_frame_size = lsquic_gquic_be_dec_stream_frame_size,
.pf_parse_ack_frame = lsquic_gquic_be_parse_ack_frame,
.pf_gen_ack_frame = lsquic_gquic_be_gen_ack_frame,
.pf_gen_stop_waiting_frame = lsquic_gquic_be_gen_stop_waiting_frame,
.pf_parse_stop_waiting_frame = lsquic_gquic_be_parse_stop_waiting_frame,
.pf_skip_stop_waiting_frame = lsquic_gquic_be_skip_stop_waiting_frame,
.pf_gen_window_update_frame = lsquic_gquic_be_gen_window_update_frame,
.pf_parse_window_update_frame = lsquic_gquic_be_parse_window_update_frame,
.pf_gen_blocked_frame = lsquic_gquic_be_gen_blocked_frame,
.pf_parse_blocked_frame = lsquic_gquic_be_parse_blocked_frame,
.pf_gen_rst_frame = lsquic_gquic_be_gen_rst_frame,
.pf_parse_rst_frame = lsquic_gquic_be_parse_rst_frame,
.pf_connect_close_frame_size = lsquic_gquic_be_connect_close_frame_size,
.pf_gen_connect_close_frame = lsquic_gquic_be_gen_connect_close_frame,
.pf_parse_connect_close_frame = lsquic_gquic_be_parse_connect_close_frame,
.pf_gen_goaway_frame = lsquic_gquic_be_gen_goaway_frame,
.pf_parse_goaway_frame = lsquic_gquic_be_parse_goaway_frame,
.pf_gen_ping_frame = lsquic_gquic_be_gen_ping_frame,
#ifndef NDEBUG
.pf_write_float_time16 = lsquic_gquic_be_write_float_time16,
.pf_read_float_time16 = lsquic_gquic_be_read_float_time16,
#endif
.pf_generate_simple_prst = gquic_Q050_generate_simple_prst,
.pf_parse_frame_type = gquic_Q050_parse_frame_type,
.pf_turn_on_fin = lsquic_turn_on_fin_Q035_thru_Q046,
.pf_packout_size = gquic_Q050_packout_size,
.pf_packout_max_header_size = gquic_Q050_packout_max_header_size,
.pf_calc_packno_bits = gquic_Q050_calc_packno_bits,
.pf_packno_bits2len = gquic_Q050_packno_bits2len,
.pf_gen_crypto_frame = gquic_Q050_gen_crypto_frame,
.pf_parse_crypto_frame = gquic_Q050_parse_crypto_frame,
.pf_calc_crypto_frame_header_sz = gquic_Q050_calc_crypto_frame_header_sz,
.pf_gen_handshake_done_frame = gquic_Q050_gen_handshake_done_frame,
.pf_parse_handshake_done_frame = gquic_Q050_parse_handshake_done_frame,
.pf_handshake_done_frame_size = gquic_Q050_handshake_done_frame_size,
};
Reference in New Issue View Git Blame Copy Permalink