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/*
* 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 "debug.h"
#include <cassert>
#include <random>
#include <iostream>
#include "util.h"
using namespace std::literals;
namespace ngtcp2 {
namespace debug {
namespace {
auto randgen = util::make_mt19937();
} // namespace
namespace {
auto *outfile = stderr;
} // namespace
int handshake_completed(ngtcp2_conn *conn, void *user_data) {
fprintf(outfile, "QUIC handshake has completed\n");
return 0;
}
int handshake_confirmed(ngtcp2_conn *conn, void *user_data) {
fprintf(outfile, "QUIC handshake has been confirmed\n");
return 0;
}
bool packet_lost(double prob) {
auto p = std::uniform_real_distribution<>(0, 1)(randgen);
return p < prob;
}
void print_crypto_data(ngtcp2_crypto_level crypto_level, const uint8_t *data,
size_t datalen) {
const char *crypto_level_str;
switch (crypto_level) {
case NGTCP2_CRYPTO_LEVEL_INITIAL:
crypto_level_str = "Initial";
break;
case NGTCP2_CRYPTO_LEVEL_HANDSHAKE:
crypto_level_str = "Handshake";
break;
case NGTCP2_CRYPTO_LEVEL_APPLICATION:
crypto_level_str = "Application";
break;
default:
assert(0);
abort();
}
fprintf(outfile, "Ordered CRYPTO data in %s crypto level\n",
crypto_level_str);
util::hexdump(outfile, data, datalen);
}
void print_stream_data(int64_t stream_id, const uint8_t *data, size_t datalen) {
fprintf(outfile, "Ordered STREAM data stream_id=0x%" PRIx64 "\n", stream_id);
util::hexdump(outfile, data, datalen);
}
void print_initial_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "initial_secret=%s\n", util::format_hex(data, len).c_str());
}
void print_client_in_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "client_in_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_server_in_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "server_in_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_handshake_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "handshake_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_client_hs_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "client_hs_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_server_hs_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "server_hs_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_client_0rtt_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "client_0rtt_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_client_1rtt_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "client_1rtt_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_server_1rtt_secret(const uint8_t *data, size_t len) {
fprintf(outfile, "server_1rtt_secret=%s\n",
util::format_hex(data, len).c_str());
}
void print_client_pp_key(const uint8_t *data, size_t len) {
fprintf(outfile, "+ client_pp_key=%s\n", util::format_hex(data, len).c_str());
}
void print_server_pp_key(const uint8_t *data, size_t len) {
fprintf(outfile, "+ server_pp_key=%s\n", util::format_hex(data, len).c_str());
}
void print_client_pp_iv(const uint8_t *data, size_t len) {
fprintf(outfile, "+ client_pp_iv=%s\n", util::format_hex(data, len).c_str());
}
void print_server_pp_iv(const uint8_t *data, size_t len) {
fprintf(outfile, "+ server_pp_iv=%s\n", util::format_hex(data, len).c_str());
}
void print_client_pp_hp(const uint8_t *data, size_t len) {
fprintf(outfile, "+ client_pp_hp=%s\n", util::format_hex(data, len).c_str());
}
void print_server_pp_hp(const uint8_t *data, size_t len) {
fprintf(outfile, "+ server_pp_hp=%s\n", util::format_hex(data, len).c_str());
}
void print_secrets(const uint8_t *secret, size_t secretlen, const uint8_t *key,
size_t keylen, const uint8_t *iv, size_t ivlen,
const uint8_t *hp, size_t hplen) {
std::cerr << "+ secret=" << util::format_hex(secret, secretlen) << "\n"
<< "+ key=" << util::format_hex(key, keylen) << "\n"
<< "+ iv=" << util::format_hex(iv, ivlen) << "\n"
<< "+ hp=" << util::format_hex(hp, hplen) << std::endl;
}
void print_secrets(const uint8_t *secret, size_t secretlen, const uint8_t *key,
size_t keylen, const uint8_t *iv, size_t ivlen) {
std::cerr << "+ secret=" << util::format_hex(secret, secretlen) << "\n"
<< "+ key=" << util::format_hex(key, keylen) << "\n"
<< "+ iv=" << util::format_hex(iv, ivlen) << std::endl;
}
void print_hp_mask(const uint8_t *mask, size_t masklen, const uint8_t *sample,
size_t samplelen) {
fprintf(outfile, "mask=%s sample=%s\n",
util::format_hex(mask, masklen).c_str(),
util::format_hex(sample, samplelen).c_str());
}
void log_printf(void *user_data, const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
}
void path_validation(const ngtcp2_path *path,
ngtcp2_path_validation_result res) {
auto local_addr = util::straddr(
reinterpret_cast<sockaddr *>(path->local.addr), path->local.addrlen);
auto remote_addr = util::straddr(
reinterpret_cast<sockaddr *>(path->remote.addr), path->remote.addrlen);
std::cerr << "Path validation against path {local:" << local_addr
<< ", remote:" << remote_addr << "} "
<< (res == NGTCP2_PATH_VALIDATION_RESULT_SUCCESS ? "succeeded"
: "failed")
<< std::endl;
}
void print_http_begin_request_headers(int64_t stream_id) {
fprintf(outfile, "http: stream 0x%" PRIx64 " request headers started\n",
stream_id);
}
void print_http_begin_response_headers(int64_t stream_id) {
fprintf(outfile, "http: stream 0x%" PRIx64 " response headers started\n",
stream_id);
}
namespace {
void print_header(const uint8_t *name, size_t namelen, const uint8_t *value,
size_t valuelen, uint8_t flags) {
fprintf(outfile, "[%.*s: %.*s]%s\n", static_cast<int>(namelen), name,
static_cast<int>(valuelen), value,
(flags & NGHTTP3_NV_FLAG_NEVER_INDEX) ? "(sensitive)" : "");
}
} // namespace
namespace {
void print_header(const nghttp3_rcbuf *name, const nghttp3_rcbuf *value,
uint8_t flags) {
auto namebuf = nghttp3_rcbuf_get_buf(name);
auto valuebuf = nghttp3_rcbuf_get_buf(value);
print_header(namebuf.base, namebuf.len, valuebuf.base, valuebuf.len, flags);
}
} // namespace
namespace {
void print_header(const nghttp3_nv &nv) {
print_header(nv.name, nv.namelen, nv.value, nv.valuelen, nv.flags);
}
} // namespace
void print_http_header(int64_t stream_id, const nghttp3_rcbuf *name,
const nghttp3_rcbuf *value, uint8_t flags) {
fprintf(outfile, "http: stream 0x%" PRIx64 " ", stream_id);
print_header(name, value, flags);
}
void print_http_end_headers(int64_t stream_id) {
fprintf(outfile, "http: stream 0x%" PRIx64 " headers ended\n", stream_id);
}
void print_http_data(int64_t stream_id, const uint8_t *data, size_t datalen) {
fprintf(outfile, "http: stream 0x%" PRIx64 " body %zu bytes\n", stream_id,
datalen);
util::hexdump(outfile, data, datalen);
}
void print_http_begin_trailers(int64_t stream_id) {
fprintf(outfile, "http: stream 0x%" PRIx64 " trailers started\n", stream_id);
}
void print_http_end_trailers(int64_t stream_id) {
fprintf(outfile, "http: stream 0x%" PRIx64 " trailers ended\n", stream_id);
}
void print_http_request_headers(int64_t stream_id, const nghttp3_nv *nva,
size_t nvlen) {
fprintf(outfile, "http: stream 0x%" PRIx64 " submit request headers\n",
stream_id);
for (size_t i = 0; i < nvlen; ++i) {
auto &nv = nva[i];
print_header(nv);
}
}
void print_http_response_headers(int64_t stream_id, const nghttp3_nv *nva,
size_t nvlen) {
fprintf(outfile, "http: stream 0x%" PRIx64 " submit response headers\n",
stream_id);
for (size_t i = 0; i < nvlen; ++i) {
auto &nv = nva[i];
print_header(nv);
}
}
std::string_view secret_title(ngtcp2_crypto_level level) {
switch (level) {
case NGTCP2_CRYPTO_LEVEL_EARLY:
return "early_traffic"sv;
case NGTCP2_CRYPTO_LEVEL_HANDSHAKE:
return "handshake_traffic"sv;
case NGTCP2_CRYPTO_LEVEL_APPLICATION:
return "application_traffic"sv;
default:
assert(0);
abort();
}
}
} // namespace debug
} // namespace ngtcp2
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