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nghttp, nghttpd, nghttpx: Add ktls support

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This commit is contained in:
Tatsuhiro Tsujikawa 2022-05-07 10:52:07 +09:00
parent 0f1cba2af5
commit 09344eb1ad
13 changed files with 237 additions and 25 deletions
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2
.github/workflows/build.yml vendored
View File

@ -110,7 +110,7 @@ jobs:
git clone --depth 1 -b openssl-3.0.3+quic https://github.com/quictls/openssl
cd openssl
./config enable-tls1_3 --prefix=$PWD/build --libdir=$PWD/build/lib
./config enable-tls1_3 enable-ktls --prefix=$PWD/build --libdir=$PWD/build/lib
make -j$(nproc)
make install_sw
- name: Build nghttp3

1
gennghttpxfun.py
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@ -199,6 +199,7 @@ OPTIONS = [
"worker-process-grace-shutdown-period",
"frontend-quic-initial-rtt",
"require-http-scheme",
"tls-ktls",
]
LOGVARS = [

9
src/HttpServer.cc
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@ -113,7 +113,8 @@ Config::Config()
early_response(false),
hexdump(false),
echo_upload(false),
no_content_length(false) {}
no_content_length(false),
ktls(false) {}
Config::~Config() {}
@ -2122,6 +2123,12 @@ int HttpServer::run() {
SSL_OP_SINGLE_ECDH_USE | SSL_OP_NO_TICKET |
SSL_OP_CIPHER_SERVER_PREFERENCE;
#ifdef SSL_OP_ENABLE_KTLS
if (config_->ktls) {
ssl_opts |= SSL_OP_ENABLE_KTLS;
}
#endif // SSL_OP_ENABLE_KTLS
SSL_CTX_set_options(ssl_ctx, ssl_opts);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_AUTO_RETRY);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_RELEASE_BUFFERS);

1
src/HttpServer.h
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@ -82,6 +82,7 @@ struct Config {
bool hexdump;
bool echo_upload;
bool no_content_length;
bool ktls;
Config();
~Config();
};

15
src/nghttp.cc
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@ -122,7 +122,8 @@ Config::Config()
hexdump(false),
no_push(false),
expect_continue(false),
verify_peer(true) {
verify_peer(true),
ktls(false) {
nghttp2_option_new(&http2_option);
nghttp2_option_set_peer_max_concurrent_streams(http2_option,
peer_max_concurrent_streams);
@ -2280,6 +2281,12 @@ int communicate(
SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION |
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION;
#ifdef SSL_OP_ENABLE_KTLS
if (config.ktls) {
ssl_opts |= SSL_OP_ENABLE_KTLS;
}
#endif // SSL_OP_ENABLE_KTLS
SSL_CTX_set_options(ssl_ctx, ssl_opts);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_AUTO_RETRY);
SSL_CTX_set_mode(ssl_ctx, SSL_MODE_RELEASE_BUFFERS);
@ -2748,6 +2755,7 @@ Options:
-y, --no-verify-peer
Suppress warning on server certificate verification
failure.
--ktls Enable ktls.
--version Display version information and exit.
-h, --help Display this help and exit.
@ -2803,6 +2811,7 @@ int main(int argc, char **argv) {
{"max-concurrent-streams", required_argument, &flag, 12},
{"expect-continue", no_argument, &flag, 13},
{"encoder-header-table-size", required_argument, &flag, 14},
{"ktls", no_argument, &flag, 15},
{nullptr, 0, nullptr, 0}};
int option_index = 0;
int c =
@ -3030,6 +3039,10 @@ int main(int argc, char **argv) {
config.encoder_header_table_size = n;
break;
}
case 15:
// ktls option
config.ktls = true;
break;
}
break;
default:

1
src/nghttp.h
View File

@ -97,6 +97,7 @@ struct Config {
bool no_push;
bool expect_continue;
bool verify_peer;
bool ktls;
};
enum class RequestState { INITIAL, ON_REQUEST, ON_RESPONSE, ON_COMPLETE };

6
src/nghttpd.cc
View File

@ -178,6 +178,7 @@ Options:
<< config.mime_types_file << R"(
--no-content-length
Don't send content-length header field.
--ktls Enable ktls.
--version Display version information and exit.
-h, --help Display this help and exit.
@ -228,6 +229,7 @@ int main(int argc, char **argv) {
{"mime-types-file", required_argument, &flag, 9},
{"no-content-length", no_argument, &flag, 10},
{"encoder-header-table-size", required_argument, &flag, 11},
{"ktls", no_argument, &flag, 12},
{nullptr, 0, nullptr, 0}};
int option_index = 0;
int c = getopt_long(argc, argv, "DVb:c:d:ehm:n:p:va:w:W:", long_options,
@ -407,6 +409,10 @@ int main(int argc, char **argv) {
config.encoder_header_table_size = n;
break;
}
case 12:
// tls option
config.ktls = true;
break;
}
break;
default:

6
src/shrpx.cc
View File

@ -2921,6 +2921,7 @@ SSL/TLS:
accepts.
Default: )"
<< util::utos_unit(config->tls.max_early_data) << R"(
--tls-ktls Enable ktls.
HTTP/2:
-c, --frontend-http2-max-concurrent-streams=<N>
@ -4263,6 +4264,7 @@ int main(int argc, char **argv) {
{SHRPX_OPT_FRONTEND_QUIC_INITIAL_RTT.c_str(), required_argument, &flag,
190},
{SHRPX_OPT_REQUIRE_HTTP_SCHEME.c_str(), no_argument, &flag, 191},
{SHRPX_OPT_TLS_KTLS.c_str(), no_argument, &flag, 192},
{nullptr, 0, nullptr, 0}};
int option_index = 0;
@ -5172,6 +5174,10 @@ int main(int argc, char **argv) {
cmdcfgs.emplace_back(SHRPX_OPT_REQUIRE_HTTP_SCHEME,
StringRef::from_lit("yes"));
break;
case 192:
// --tls-ktls
cmdcfgs.emplace_back(SHRPX_OPT_TLS_KTLS, StringRef::from_lit("yes"));
break;
default:
break;
}

8
src/shrpx_config.cc
View File

@ -1903,6 +1903,11 @@ int option_lookup_token(const char *name, size_t namelen) {
return SHRPX_OPTID_FASTOPEN;
}
break;
case 's':
if (util::strieq_l("tls-ktl", name, 7)) {
return SHRPX_OPTID_TLS_KTLS;
}
break;
case 't':
if (util::strieq_l("npn-lis", name, 7)) {
return SHRPX_OPTID_NPN_LIST;
@ -4188,6 +4193,9 @@ int parse_config(Config *config, int optid, const StringRef &opt,
case SHRPX_OPTID_REQUIRE_HTTP_SCHEME:
config->http.require_http_scheme = util::strieq_l("yes", optarg);
return 0;
case SHRPX_OPTID_TLS_KTLS:
config->tls.ktls = util::strieq_l("yes", optarg);
return 0;
case SHRPX_OPTID_CONF:
LOG(WARN) << "conf: ignored";

3
src/shrpx_config.h
View File

@ -404,6 +404,7 @@ constexpr auto SHRPX_OPT_FRONTEND_QUIC_INITIAL_RTT =
StringRef::from_lit("frontend-quic-initial-rtt");
constexpr auto SHRPX_OPT_REQUIRE_HTTP_SCHEME =
StringRef::from_lit("require-http-scheme");
constexpr auto SHRPX_OPT_TLS_KTLS = StringRef::from_lit("tls-ktls");
constexpr size_t SHRPX_OBFUSCATED_NODE_LENGTH = 8;
@ -783,6 +784,7 @@ struct TLSConfig {
// true if forwarding requests included in TLS early data should not
// be postponed until TLS handshake finishes.
bool no_postpone_early_data;
bool ktls;
};
#ifdef ENABLE_HTTP3
@ -1332,6 +1334,7 @@ enum {
SHRPX_OPTID_SYSLOG_FACILITY,
SHRPX_OPTID_TLS_DYN_REC_IDLE_TIMEOUT,
SHRPX_OPTID_TLS_DYN_REC_WARMUP_THRESHOLD,
SHRPX_OPTID_TLS_KTLS,
SHRPX_OPTID_TLS_MAX_EARLY_DATA,
SHRPX_OPTID_TLS_MAX_PROTO_VERSION,
SHRPX_OPTID_TLS_MIN_PROTO_VERSION,

164
src/shrpx_connection.cc
View File

@ -312,8 +312,8 @@ BIO_METHOD *create_bio_method() {
void Connection::set_ssl(SSL *ssl) {
tls.ssl = ssl;
if (proto != Proto::HTTP3) {
auto &tlsconf = get_config()->tls;
if (proto != Proto::HTTP3 && !tlsconf.session_cache.memcached.host.empty()) {
auto bio = BIO_new(tlsconf.bio_method);
BIO_set_data(bio, this);
SSL_set_bio(tls.ssl, bio, bio);
@ -336,6 +336,12 @@ int Connection::tls_handshake() {
wlimit.stopw();
ev_timer_stop(loop, &wt);
auto &tlsconf = get_config()->tls;
if (tlsconf.session_cache.memcached.host.empty()) {
return tls_handshake_simple();
}
std::array<uint8_t, 16_k> buf;
if (ev_is_active(&rev)) {
@ -397,10 +403,6 @@ int Connection::tls_handshake() {
ERR_clear_error();
#if OPENSSL_1_1_1_API || defined(OPENSSL_IS_BORINGSSL)
auto &tlsconf = get_config()->tls;
#endif // OPENSSL_1_1_1_API || defined(OPENSSL_IS_BORINGSSL)
#if OPENSSL_1_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
if (!tls.server_handshake || tls.early_data_finish) {
rv = SSL_do_handshake(tls.ssl);
@ -592,6 +594,158 @@ int Connection::tls_handshake() {
return write_tls_pending_handshake();
}
int Connection::tls_handshake_simple() {
wlimit.stopw();
ev_timer_stop(loop, &wt);
if (tls.initial_handshake_done) {
return write_tls_pending_handshake();
}
if (SSL_get_fd(tls.ssl) == -1) {
SSL_set_fd(tls.ssl, fd);
}
int rv;
#if OPENSSL_1_1_1_API || defined(OPENSSL_IS_BORINGSSL)
auto &tlsconf = get_config()->tls;
std::array<uint8_t, 16_k> buf;
#endif // OPENSSL_1_1_1_API || defined(OPENSSL_IS_BORINGSSL)
ERR_clear_error();
#if OPENSSL_1_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
if (!tls.server_handshake || tls.early_data_finish) {
rv = SSL_do_handshake(tls.ssl);
} else {
for (;;) {
size_t nread;
rv = SSL_read_early_data(tls.ssl, buf.data(), buf.size(), &nread);
if (rv == SSL_READ_EARLY_DATA_ERROR) {
// If we have early data, and server sends ServerHello, assume
// that handshake is completed in server side, and start
// processing request. If we don't exit handshake code here,
// server waits for EndOfEarlyData and Finished message from
// client, which voids the purpose of 0-RTT data. The left
// over of handshake is done through write_tls or read_tls.
if (tlsconf.no_postpone_early_data && tls.earlybuf.rleft()) {
rv = 1;
}
break;
}
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "tls: read early data " << nread << " bytes";
}
tls.earlybuf.append(buf.data(), nread);
if (rv == SSL_READ_EARLY_DATA_FINISH) {
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "tls: read all early data; total "
<< tls.earlybuf.rleft() << " bytes";
}
tls.early_data_finish = true;
// The same reason stated above.
if (tlsconf.no_postpone_early_data && tls.earlybuf.rleft()) {
rv = 1;
} else {
ERR_clear_error();
rv = SSL_do_handshake(tls.ssl);
}
break;
}
}
}
#else // !(OPENSSL_1_1_1_API && !defined(OPENSSL_IS_BORINGSSL))
rv = SSL_do_handshake(tls.ssl);
#endif // !(OPENSSL_1_1_1_API && !defined(OPENSSL_IS_BORINGSSL))
if (rv <= 0) {
auto err = SSL_get_error(tls.ssl, rv);
switch (err) {
case SSL_ERROR_WANT_READ:
if (read_buffer_full(tls.rbuf)) {
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "tls: handshake message is too large";
}
return -1;
}
break;
case SSL_ERROR_WANT_WRITE:
wlimit.startw();
ev_timer_again(loop, &wt);
break;
case SSL_ERROR_SSL: {
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "tls: handshake libssl error: "
<< ERR_error_string(ERR_get_error(), nullptr);
}
return SHRPX_ERR_NETWORK;
}
default:
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "tls: handshake libssl error " << err;
}
return SHRPX_ERR_NETWORK;
}
}
if (rv != 1) {
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "tls: handshake is still in progress";
}
return SHRPX_ERR_INPROGRESS;
}
#ifdef OPENSSL_IS_BORINGSSL
if (!tlsconf.no_postpone_early_data && SSL_in_early_data(tls.ssl) &&
SSL_in_init(tls.ssl)) {
auto nread = SSL_read(tls.ssl, buf.data(), buf.size());
if (nread <= 0) {
auto err = SSL_get_error(tls.ssl, nread);
switch (err) {
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
break;
case SSL_ERROR_ZERO_RETURN:
return SHRPX_ERR_EOF;
case SSL_ERROR_SSL:
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "SSL_read: "
<< ERR_error_string(ERR_get_error(), nullptr);
}
return SHRPX_ERR_NETWORK;
default:
if (LOG_ENABLED(INFO)) {
LOG(INFO) << "SSL_read: SSL_get_error returned " << err;
}
return SHRPX_ERR_NETWORK;
}
} else {
tls.earlybuf.append(buf.data(), nread);
}
if (SSL_in_init(tls.ssl)) {
return SHRPX_ERR_INPROGRESS;
}
}
#endif // OPENSSL_IS_BORINGSSL
// Handshake was done
rv = check_http2_requirement();
if (rv != 0) {
return -1;
}
tls.initial_handshake_done = true;
return write_tls_pending_handshake();
}
int Connection::write_tls_pending_handshake() {
// Send handshake data left in the buffer
while (tls.wbuf.rleft()) {

1
src/shrpx_connection.h
View File

@ -109,6 +109,7 @@ struct Connection {
void prepare_server_handshake();
int tls_handshake();
int tls_handshake_simple();
int write_tls_pending_handshake();
int check_http2_requirement();

37
src/shrpx_tls.cc
View File

@ -933,18 +933,18 @@ SSL_CTX *create_ssl_context(const char *private_key_file, const char *cert_file,
DIE();
}
constexpr auto ssl_opts =
(SSL_OP_ALL & ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) | SSL_OP_NO_SSLv2 |
SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION |
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | SSL_OP_SINGLE_ECDH_USE |
SSL_OP_SINGLE_DH_USE |
auto ssl_opts = (SSL_OP_ALL & ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) |
SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION |
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION |
SSL_OP_SINGLE_ECDH_USE | SSL_OP_SINGLE_DH_USE |
SSL_OP_CIPHER_SERVER_PREFERENCE
#if OPENSSL_1_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
// The reason for disabling built-in anti-replay in OpenSSL is
// that it only works if client gets back to the same server.
// The freshness check described in
// https://tools.ietf.org/html/rfc8446#section-8.3 is still
// performed.
// The reason for disabling built-in anti-replay in
// OpenSSL is that it only works if client gets back
// to the same server. The freshness check
// described in
// https://tools.ietf.org/html/rfc8446#section-8.3
// is still performed.
| SSL_OP_NO_ANTI_REPLAY
#endif // OPENSSL_1_1_1_API && !defined(OPENSSL_IS_BORINGSSL)
;
@ -952,6 +952,12 @@ SSL_CTX *create_ssl_context(const char *private_key_file, const char *cert_file,
auto config = mod_config();
auto &tlsconf = config->tls;
#ifdef SSL_OP_ENABLE_KTLS
if (tlsconf.ktls) {
ssl_opts |= SSL_OP_ENABLE_KTLS;
}
#endif // SSL_OP_ENABLE_KTLS
SSL_CTX_set_options(ssl_ctx, ssl_opts | tlsconf.tls_proto_mask);
if (nghttp2::tls::ssl_ctx_set_proto_versions(
@ -1700,13 +1706,18 @@ SSL_CTX *create_ssl_client_context(
DIE();
}
constexpr auto ssl_opts = (SSL_OP_ALL & ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) |
SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |
SSL_OP_NO_COMPRESSION |
auto ssl_opts = (SSL_OP_ALL & ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS) |
SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION |
SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION;
auto &tlsconf = get_config()->tls;
#ifdef SSL_OP_ENABLE_KTLS
if (tlsconf.ktls) {
ssl_opts |= SSL_OP_ENABLE_KTLS;
}
#endif // SSL_OP_ENABLE_KTLS
SSL_CTX_set_options(ssl_ctx, ssl_opts | tlsconf.tls_proto_mask);
SSL_CTX_set_session_cache_mode(ssl_ctx, SSL_SESS_CACHE_CLIENT |