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|
/*
* ngtcp2
*
* Copyright (c) 2018 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_log.h"
#include <stdio.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <assert.h>
#include <errno.h>
#include <string.h>
#include "ngtcp2_str.h"
#include "ngtcp2_vec.h"
#include "ngtcp2_macro.h"
void ngtcp2_log_init(ngtcp2_log *log, const ngtcp2_cid *scid,
ngtcp2_printf log_printf, ngtcp2_tstamp ts,
void *user_data) {
if (scid) {
ngtcp2_encode_hex(log->scid, scid->data, scid->datalen);
} else {
log->scid[0] = '\0';
}
log->log_printf = log_printf;
log->ts = log->last_ts = ts;
log->user_data = user_data;
}
/*
* # Log header
*
* <LEVEL><TIMESTAMP> <SCID> <EVENT>
*
* <LEVEL>:
* Log level. I=Info, W=Warning, E=Error
*
* <TIMESTAMP>:
* Timestamp relative to ngtcp2_log.ts field in milliseconds
* resolution.
*
* <SCID>:
* Source Connection ID in hex string.
*
* <EVENT>:
* Event. pkt=packet, frm=frame, rcv=recovery, cry=crypto,
* con=connection(catch all)
*
* # Frame event
*
* <DIR> <PKN> <PKTNAME>(<PKTTYPE>) <FRAMENAME>(<FRAMETYPE>)
*
* <DIR>:
* Flow direction. tx=transmission, rx=reception
*
* <PKN>:
* Packet number.
*
* <PKTNAME>:
* Packet name. (e.g., Initial, Handshake, S01)
*
* <PKTTYPE>:
* Packet type in hex string.
*
* <FRAMENAME>:
* Frame name. (e.g., STREAM, ACK, PING)
*
* <FRAMETYPE>:
* Frame type in hex string.
*/
#define NGTCP2_LOG_BUFLEN 4096
/* TODO Split second and remaining fraction with comma */
#define NGTCP2_LOG_HD "I%08" PRIu64 " 0x%s %s"
#define NGTCP2_LOG_PKT NGTCP2_LOG_HD " %s %" PRId64 " %s(0x%02x)"
#define NGTCP2_LOG_TP NGTCP2_LOG_HD " remote transport_parameters"
#define NGTCP2_LOG_FRM_HD_FIELDS(DIR) \
timestamp_cast(log->last_ts - log->ts), (const char *)log->scid, "frm", \
(DIR), hd->pkt_num, strpkttype(hd), hd->type
#define NGTCP2_LOG_PKT_HD_FIELDS(DIR) \
timestamp_cast(log->last_ts - log->ts), (const char *)log->scid, "pkt", \
(DIR), hd->pkt_num, strpkttype(hd), hd->type
#define NGTCP2_LOG_TP_HD_FIELDS \
timestamp_cast(log->last_ts - log->ts), (const char *)log->scid, "cry"
static const char *strerrorcode(uint64_t error_code) {
switch (error_code) {
case NGTCP2_NO_ERROR:
return "NO_ERROR";
case NGTCP2_INTERNAL_ERROR:
return "INTERNAL_ERROR";
case NGTCP2_SERVER_BUSY:
return "SERVER_BUSY";
case NGTCP2_FLOW_CONTROL_ERROR:
return "FLOW_CONTROL_ERROR";
case NGTCP2_STREAM_LIMIT_ERROR:
return "STREAM_LIMIT_ERROR";
case NGTCP2_STREAM_STATE_ERROR:
return "STREAM_STATE_ERROR";
case NGTCP2_FINAL_SIZE_ERROR:
return "FINAL_SIZE_ERROR";
case NGTCP2_FRAME_ENCODING_ERROR:
return "FRAME_ENCODING_ERROR";
case NGTCP2_TRANSPORT_PARAMETER_ERROR:
return "TRANSPORT_PARAMETER_ERROR";
case NGTCP2_CONNECTION_ID_LIMIT_ERROR:
return "CONNECTION_ID_LIMIT_ERROR";
case NGTCP2_PROTOCOL_VIOLATION:
return "PROTOCOL_VIOLATION";
case NGTCP2_INVALID_TOKEN:
return "INVALID_TOKEN";
case NGTCP2_CRYPTO_BUFFER_EXCEEDED:
return "CRYPTO_BUFFER_EXCEEDED";
case NGTCP2_KEY_UPDATE_ERROR:
return "KEY_UPDATE_ERROR";
default:
if (0x100u <= error_code && error_code <= 0x1ffu) {
return "CRYPTO_ERROR";
}
return "(unknown)";
}
}
static const char *strapperrorcode(uint64_t app_error_code) {
(void)app_error_code;
return "(unknown)";
}
static const char *strpkttype_long(uint8_t type) {
switch (type) {
case NGTCP2_PKT_VERSION_NEGOTIATION:
return "VN";
case NGTCP2_PKT_INITIAL:
return "Initial";
case NGTCP2_PKT_RETRY:
return "Retry";
case NGTCP2_PKT_HANDSHAKE:
return "Handshake";
case NGTCP2_PKT_0RTT:
return "0RTT";
default:
return "(unknown)";
}
}
static const char *strpkttype(const ngtcp2_pkt_hd *hd) {
if (hd->flags & NGTCP2_PKT_FLAG_LONG_FORM) {
return strpkttype_long(hd->type);
}
return "Short";
}
static const char *strevent(ngtcp2_log_event ev) {
switch (ev) {
case NGTCP2_LOG_EVENT_CON:
return "con";
case NGTCP2_LOG_EVENT_PKT:
return "pkt";
case NGTCP2_LOG_EVENT_FRM:
return "frm";
case NGTCP2_LOG_EVENT_RCV:
return "rcv";
case NGTCP2_LOG_EVENT_CRY:
return "cry";
case NGTCP2_LOG_EVENT_PTV:
return "ptv";
case NGTCP2_LOG_EVENT_NONE:
default:
return "non";
}
}
static uint64_t timestamp_cast(uint64_t ns) { return ns / NGTCP2_MILLISECONDS; }
static void log_fr_stream(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_stream *fr, const char *dir) {
log->log_printf(
log->user_data,
(NGTCP2_LOG_PKT " STREAM(0x%02x) id=0x%" PRIx64 " fin=%d offset=%" PRIu64
" len=%" PRIu64 " uni=%d"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type | fr->flags, fr->stream_id,
fr->fin, fr->offset, ngtcp2_vec_len(fr->data, fr->datacnt),
(fr->stream_id & 0x2) != 0);
}
static void log_fr_ack(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_ack *fr, const char *dir) {
int64_t largest_ack, min_ack;
size_t i;
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " ACK(0x%02x) largest_ack=%" PRId64
" ack_delay=%" PRIu64 "(%" PRIu64
") ack_block_count=%zu"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->largest_ack,
fr->ack_delay_unscaled / NGTCP2_MILLISECONDS, fr->ack_delay,
fr->num_blks);
largest_ack = fr->largest_ack;
min_ack = fr->largest_ack - (int64_t)fr->first_ack_blklen;
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " ACK(0x%02x) block=[%" PRId64 "..%" PRId64
"] block_count=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, largest_ack, min_ack,
fr->first_ack_blklen);
for (i = 0; i < fr->num_blks; ++i) {
const ngtcp2_ack_blk *blk = &fr->blks[i];
largest_ack = min_ack - (int64_t)blk->gap - 2;
min_ack = largest_ack - (int64_t)blk->blklen;
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " ACK(0x%02x) block=[%" PRId64 "..%" PRId64
"] gap=%" PRIu64 " block_count=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, largest_ack,
min_ack, blk->gap, blk->blklen);
}
}
static void log_fr_padding(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_padding *fr, const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " PADDING(0x%02x) len=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->len);
}
static void log_fr_reset_stream(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_reset_stream *fr,
const char *dir) {
log->log_printf(
log->user_data,
(NGTCP2_LOG_PKT " RESET_STREAM(0x%02x) id=0x%" PRIx64
" app_error_code=%s(0x%" PRIx64 ") final_size=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->stream_id,
strapperrorcode(fr->app_error_code), fr->app_error_code, fr->final_size);
}
static void log_fr_connection_close(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_connection_close *fr,
const char *dir) {
char reason[256];
size_t reasonlen = ngtcp2_min(sizeof(reason) - 1, fr->reasonlen);
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT
" CONNECTION_CLOSE(0x%02x) error_code=%s(0x%" PRIx64 ") "
"frame_type=%" PRIx64 " reason_len=%" PRIu64 " reason=[%s]"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type,
fr->type == NGTCP2_FRAME_CONNECTION_CLOSE
? strerrorcode(fr->error_code)
: strapperrorcode(fr->error_code),
fr->error_code, fr->frame_type, fr->reasonlen,
ngtcp2_encode_printable_ascii(reason, fr->reason, reasonlen));
}
static void log_fr_max_data(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_max_data *fr, const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " MAX_DATA(0x%02x) max_data=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->max_data);
}
static void log_fr_max_stream_data(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_max_stream_data *fr,
const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " MAX_STREAM_DATA(0x%02x) id=0x%" PRIx64
" max_stream_data=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->stream_id,
fr->max_stream_data);
}
static void log_fr_max_streams(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_max_streams *fr, const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " MAX_STREAMS(0x%02x) max_streams=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->max_streams);
}
static void log_fr_ping(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_ping *fr, const char *dir) {
log->log_printf(log->user_data, (NGTCP2_LOG_PKT " PING(0x%02x)"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type);
}
static void log_fr_data_blocked(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_data_blocked *fr,
const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " DATA_BLOCKED(0x%02x) offset=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->offset);
}
static void log_fr_stream_data_blocked(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_stream_data_blocked *fr,
const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " STREAM_DATA_BLOCKED(0x%02x) id=0x%" PRIx64
" offset=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->stream_id, fr->offset);
}
static void log_fr_streams_blocked(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_streams_blocked *fr,
const char *dir) {
log->log_printf(
log->user_data,
(NGTCP2_LOG_PKT " STREAMS_BLOCKED(0x%02x) stream_limit=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->stream_limit);
}
static void log_fr_new_connection_id(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_new_connection_id *fr,
const char *dir) {
uint8_t buf[sizeof(fr->stateless_reset_token) * 2 + 1];
uint8_t cid[sizeof(fr->cid.data) * 2 + 1];
log->log_printf(
log->user_data,
(NGTCP2_LOG_PKT " NEW_CONNECTION_ID(0x%02x) seq=%" PRIu64
" cid=0x%s retire_prior_to=%" PRIu64
" stateless_reset_token=0x%s"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->seq,
(const char *)ngtcp2_encode_hex(cid, fr->cid.data, fr->cid.datalen),
fr->retire_prior_to,
(const char *)ngtcp2_encode_hex(buf, fr->stateless_reset_token,
sizeof(fr->stateless_reset_token)));
}
static void log_fr_stop_sending(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_stop_sending *fr,
const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " STOP_SENDING(0x%02x) id=0x%" PRIx64
" app_error_code=%s(0x%" PRIx64 ")"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->stream_id,
strapperrorcode(fr->app_error_code), fr->app_error_code);
}
static void log_fr_path_challenge(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_path_challenge *fr,
const char *dir) {
uint8_t buf[sizeof(fr->data) * 2 + 1];
log->log_printf(
log->user_data, (NGTCP2_LOG_PKT " PATH_CHALLENGE(0x%02x) data=0x%s"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type,
(const char *)ngtcp2_encode_hex(buf, fr->data, sizeof(fr->data)));
}
static void log_fr_path_response(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_path_response *fr,
const char *dir) {
uint8_t buf[sizeof(fr->data) * 2 + 1];
log->log_printf(
log->user_data, (NGTCP2_LOG_PKT " PATH_RESPONSE(0x%02x) data=0x%s"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type,
(const char *)ngtcp2_encode_hex(buf, fr->data, sizeof(fr->data)));
}
static void log_fr_crypto(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_crypto *fr, const char *dir) {
size_t datalen = 0;
size_t i;
for (i = 0; i < fr->datacnt; ++i) {
datalen += fr->data[i].len;
}
log->log_printf(
log->user_data,
(NGTCP2_LOG_PKT " CRYPTO(0x%02x) offset=%" PRIu64 " len=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->offset, datalen);
}
static void log_fr_new_token(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_new_token *fr, const char *dir) {
/* Show at most first 64 bytes of token. If token is longer than 64
bytes, log first 64 bytes and then append "*" */
uint8_t buf[128 + 1 + 1];
uint8_t *p;
if (fr->tokenlen > 64) {
p = ngtcp2_encode_hex(buf, fr->token, 64);
p[128] = '*';
p[129] = '\0';
} else {
p = ngtcp2_encode_hex(buf, fr->token, fr->tokenlen);
}
log->log_printf(
log->user_data,
(NGTCP2_LOG_PKT " NEW_TOKEN(0x%02x) token=0x%s token_len=%zu"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, (const char *)p, fr->tokenlen);
}
static void log_fr_retire_connection_id(ngtcp2_log *log,
const ngtcp2_pkt_hd *hd,
const ngtcp2_retire_connection_id *fr,
const char *dir) {
log->log_printf(log->user_data,
(NGTCP2_LOG_PKT " RETIRE_CONNECTION_ID(0x%02x) seq=%" PRIu64),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type, fr->seq);
}
static void log_fr_handshake_done(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_handshake_done *fr,
const char *dir) {
log->log_printf(log->user_data, (NGTCP2_LOG_PKT " HANDSHAKE_DONE(0x%02x)"),
NGTCP2_LOG_FRM_HD_FIELDS(dir), fr->type);
}
static void log_fr(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_frame *fr, const char *dir) {
switch (fr->type) {
case NGTCP2_FRAME_STREAM:
log_fr_stream(log, hd, &fr->stream, dir);
break;
case NGTCP2_FRAME_ACK:
case NGTCP2_FRAME_ACK_ECN:
log_fr_ack(log, hd, &fr->ack, dir);
break;
case NGTCP2_FRAME_PADDING:
log_fr_padding(log, hd, &fr->padding, dir);
break;
case NGTCP2_FRAME_RESET_STREAM:
log_fr_reset_stream(log, hd, &fr->reset_stream, dir);
break;
case NGTCP2_FRAME_CONNECTION_CLOSE:
case NGTCP2_FRAME_CONNECTION_CLOSE_APP:
log_fr_connection_close(log, hd, &fr->connection_close, dir);
break;
case NGTCP2_FRAME_MAX_DATA:
log_fr_max_data(log, hd, &fr->max_data, dir);
break;
case NGTCP2_FRAME_MAX_STREAM_DATA:
log_fr_max_stream_data(log, hd, &fr->max_stream_data, dir);
break;
case NGTCP2_FRAME_MAX_STREAMS_BIDI:
case NGTCP2_FRAME_MAX_STREAMS_UNI:
log_fr_max_streams(log, hd, &fr->max_streams, dir);
break;
case NGTCP2_FRAME_PING:
log_fr_ping(log, hd, &fr->ping, dir);
break;
case NGTCP2_FRAME_DATA_BLOCKED:
log_fr_data_blocked(log, hd, &fr->data_blocked, dir);
break;
case NGTCP2_FRAME_STREAM_DATA_BLOCKED:
log_fr_stream_data_blocked(log, hd, &fr->stream_data_blocked, dir);
break;
case NGTCP2_FRAME_STREAMS_BLOCKED_BIDI:
case NGTCP2_FRAME_STREAMS_BLOCKED_UNI:
log_fr_streams_blocked(log, hd, &fr->streams_blocked, dir);
break;
case NGTCP2_FRAME_NEW_CONNECTION_ID:
log_fr_new_connection_id(log, hd, &fr->new_connection_id, dir);
break;
case NGTCP2_FRAME_STOP_SENDING:
log_fr_stop_sending(log, hd, &fr->stop_sending, dir);
break;
case NGTCP2_FRAME_PATH_CHALLENGE:
log_fr_path_challenge(log, hd, &fr->path_challenge, dir);
break;
case NGTCP2_FRAME_PATH_RESPONSE:
log_fr_path_response(log, hd, &fr->path_response, dir);
break;
case NGTCP2_FRAME_CRYPTO:
log_fr_crypto(log, hd, &fr->crypto, dir);
break;
case NGTCP2_FRAME_NEW_TOKEN:
log_fr_new_token(log, hd, &fr->new_token, dir);
break;
case NGTCP2_FRAME_RETIRE_CONNECTION_ID:
log_fr_retire_connection_id(log, hd, &fr->retire_connection_id, dir);
break;
case NGTCP2_FRAME_HANDSHAKE_DONE:
log_fr_handshake_done(log, hd, &fr->handshake_done, dir);
break;
default:
assert(0);
}
}
void ngtcp2_log_rx_fr(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_frame *fr) {
if (!log->log_printf) {
return;
}
log_fr(log, hd, fr, "rx");
}
void ngtcp2_log_tx_fr(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const ngtcp2_frame *fr) {
if (!log->log_printf) {
return;
}
log_fr(log, hd, fr, "tx");
}
void ngtcp2_log_rx_vn(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const uint32_t *sv, size_t nsv) {
size_t i;
if (!log->log_printf) {
return;
}
for (i = 0; i < nsv; ++i) {
log->log_printf(log->user_data, (NGTCP2_LOG_PKT " v=0x%08x"),
NGTCP2_LOG_PKT_HD_FIELDS("rx"), sv[i]);
}
}
void ngtcp2_log_rx_sr(ngtcp2_log *log, const ngtcp2_pkt_stateless_reset *sr) {
uint8_t buf[sizeof(sr->stateless_reset_token) * 2 + 1];
ngtcp2_pkt_hd shd;
ngtcp2_pkt_hd *hd = &shd;
if (!log->log_printf) {
return;
}
memset(&shd, 0, sizeof(shd));
log->log_printf(
log->user_data, (NGTCP2_LOG_PKT " token=0x%s randlen=%zu"),
NGTCP2_LOG_PKT_HD_FIELDS("rx"),
(const char *)ngtcp2_encode_hex(buf, sr->stateless_reset_token,
sizeof(sr->stateless_reset_token)),
sr->randlen);
}
void ngtcp2_log_remote_tp(ngtcp2_log *log, uint8_t exttype,
const ngtcp2_transport_params *params) {
uint8_t token[NGTCP2_STATELESS_RESET_TOKENLEN * 2 + 1];
uint8_t addr[16 * 2 + 1];
uint8_t cid[NGTCP2_MAX_CIDLEN * 2 + 1];
if (!log->log_printf) {
return;
}
if (exttype == NGTCP2_TRANSPORT_PARAMS_TYPE_ENCRYPTED_EXTENSIONS) {
if (params->stateless_reset_token_present) {
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " stateless_reset_token=0x%s"),
NGTCP2_LOG_TP_HD_FIELDS,
(const char *)ngtcp2_encode_hex(
token, params->stateless_reset_token,
sizeof(params->stateless_reset_token)));
}
if (params->preferred_address_present) {
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " preferred_address.ipv4_addr=0x%s"),
NGTCP2_LOG_TP_HD_FIELDS,
(const char *)ngtcp2_encode_hex(
addr, params->preferred_address.ipv4_addr,
sizeof(params->preferred_address.ipv4_addr)));
log->log_printf(
log->user_data, (NGTCP2_LOG_TP " preferred_address.ipv4_port=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->preferred_address.ipv4_port);
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " preferred_address.ipv6_addr=0x%s"),
NGTCP2_LOG_TP_HD_FIELDS,
(const char *)ngtcp2_encode_hex(
addr, params->preferred_address.ipv6_addr,
sizeof(params->preferred_address.ipv6_addr)));
log->log_printf(
log->user_data, (NGTCP2_LOG_TP " preferred_address.ipv6_port=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->preferred_address.ipv6_port);
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " preferred_address.cid=0x%s"),
NGTCP2_LOG_TP_HD_FIELDS,
(const char *)ngtcp2_encode_hex(
cid, params->preferred_address.cid.data,
params->preferred_address.cid.datalen));
log->log_printf(
log->user_data,
(NGTCP2_LOG_TP " preferred_address.stateless_reset_token=0x%s"),
NGTCP2_LOG_TP_HD_FIELDS,
(const char *)ngtcp2_encode_hex(
token, params->preferred_address.stateless_reset_token,
sizeof(params->preferred_address.stateless_reset_token)));
}
if (params->original_connection_id_present) {
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " original_connection_id=0x%s"),
NGTCP2_LOG_TP_HD_FIELDS,
(const char *)ngtcp2_encode_hex(
cid, params->original_connection_id.data,
params->original_connection_id.datalen));
}
}
log->log_printf(
log->user_data, (NGTCP2_LOG_TP " initial_max_stream_data_bidi_local=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->initial_max_stream_data_bidi_local);
log->log_printf(
log->user_data, (NGTCP2_LOG_TP " initial_max_stream_data_bidi_remote=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->initial_max_stream_data_bidi_remote);
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " initial_max_stream_data_uni=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->initial_max_stream_data_uni);
log->log_printf(log->user_data, (NGTCP2_LOG_TP " initial_max_data=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->initial_max_data);
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " initial_max_bidi_streams=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->initial_max_streams_bidi);
log->log_printf(log->user_data, (NGTCP2_LOG_TP " initial_max_uni_streams=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->initial_max_streams_uni);
log->log_printf(log->user_data, (NGTCP2_LOG_TP " max_idle_timeout=%u"),
NGTCP2_LOG_TP_HD_FIELDS,
params->max_idle_timeout / NGTCP2_MILLISECONDS);
log->log_printf(log->user_data, (NGTCP2_LOG_TP " max_packet_size=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->max_packet_size);
log->log_printf(log->user_data, (NGTCP2_LOG_TP " ack_delay_exponent=%u"),
NGTCP2_LOG_TP_HD_FIELDS, params->ack_delay_exponent);
log->log_printf(log->user_data, (NGTCP2_LOG_TP " max_ack_delay=%u"),
NGTCP2_LOG_TP_HD_FIELDS,
params->max_ack_delay / NGTCP2_MILLISECONDS);
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " active_connection_id_limit=%" PRIu64),
NGTCP2_LOG_TP_HD_FIELDS, params->active_connection_id_limit);
log->log_printf(log->user_data,
(NGTCP2_LOG_TP " disable_active_migration=%d"),
NGTCP2_LOG_TP_HD_FIELDS, params->disable_active_migration);
}
void ngtcp2_log_pkt_lost(ngtcp2_log *log, int64_t pkt_num, uint8_t type,
uint8_t flags, ngtcp2_tstamp sent_ts) {
if (!log->log_printf) {
return;
}
ngtcp2_log_info(
log, NGTCP2_LOG_EVENT_RCV,
"pkn=%" PRId64 " lost type=%s(0x%02x) sent_ts=%" PRIu64, pkt_num,
(flags & NGTCP2_PKT_FLAG_LONG_FORM) ? strpkttype_long(type) : "Short",
type, sent_ts);
}
static void log_pkt_hd(ngtcp2_log *log, const ngtcp2_pkt_hd *hd,
const char *dir) {
uint8_t dcid[sizeof(hd->dcid.data) * 2 + 1];
uint8_t scid[sizeof(hd->scid.data) * 2 + 1];
if (!log->log_printf) {
return;
}
ngtcp2_log_info(
log, NGTCP2_LOG_EVENT_PKT,
"%s pkn=%" PRId64 " dcid=0x%s scid=0x%s type=%s(0x%02x) len=%zu k=%d",
dir, hd->pkt_num,
(const char *)ngtcp2_encode_hex(dcid, hd->dcid.data, hd->dcid.datalen),
(const char *)ngtcp2_encode_hex(scid, hd->scid.data, hd->scid.datalen),
(hd->flags & NGTCP2_PKT_FLAG_LONG_FORM) ? strpkttype_long(hd->type)
: "Short",
hd->type, hd->len, (hd->flags & NGTCP2_PKT_FLAG_KEY_PHASE) != 0);
}
void ngtcp2_log_rx_pkt_hd(ngtcp2_log *log, const ngtcp2_pkt_hd *hd) {
log_pkt_hd(log, hd, "rx");
}
void ngtcp2_log_tx_pkt_hd(ngtcp2_log *log, const ngtcp2_pkt_hd *hd) {
log_pkt_hd(log, hd, "tx");
}
void ngtcp2_log_info(ngtcp2_log *log, ngtcp2_log_event ev, const char *fmt,
...) {
va_list ap;
int n;
char buf[NGTCP2_LOG_BUFLEN];
if (!log->log_printf) {
return;
}
va_start(ap, fmt);
n = vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
if (n < 0 || (size_t)n >= sizeof(buf)) {
return;
}
log->log_printf(log->user_data, (NGTCP2_LOG_HD " %s"),
timestamp_cast(log->last_ts - log->ts), log->scid,
strevent(ev), buf);
}
void ngtcp2_log_tx_cancel(ngtcp2_log *log, const ngtcp2_pkt_hd *hd) {
ngtcp2_log_info(log, NGTCP2_LOG_EVENT_PKT,
"cancel tx pkn=%" PRId64 " type=%s(0x%02x)", hd->pkt_num,
strpkttype(hd), hd->type);
}
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