ClientHello Padding for Fast Radio Opening in 3G.
The ClientHello record is padded to 1024 bytes when
fastradio_padding is enabled. As a result, the 3G cellular radio
is fast forwarded to DCH (high data rate) state. This mechanism
leads to a substantial redunction in terms of TLS handshake
latency, and benefits mobile apps that are running on top of TLS.
Change-Id: I3d55197b6d601761c94c0f22871774b5a3dad614
diff --git a/ssl/test/bssl_shim.cc b/ssl/test/bssl_shim.cc
index 30cdab7..e04e44b 100644
--- a/ssl/test/bssl_shim.cc
+++ b/ssl/test/bssl_shim.cc
@@ -429,6 +429,7 @@
BIO_print_errors_fp(stdout);
return 1;
}
+ SSL_enable_fastradio_padding(ssl, config->fastradio_padding);
BIO *bio = BIO_new_fd(fd, 1 /* take ownership */);
if (bio == NULL) {
diff --git a/ssl/test/runner/common.go b/ssl/test/runner/common.go
index 628c208..90c5294 100644
--- a/ssl/test/runner/common.go
+++ b/ssl/test/runner/common.go
@@ -582,6 +582,10 @@
// to require that all ClientHellos match in offered version
// across a renego.
RequireSameRenegoClientVersion bool
+
+ // RequireFastradioPadding, if true, requires that ClientHello messages
+ // be at least 1000 bytes long.
+ RequireFastradioPadding bool
}
func (c *Config) serverInit() {
diff --git a/ssl/test/runner/handshake_server.go b/ssl/test/runner/handshake_server.go
index 4bdede1..284f314 100644
--- a/ssl/test/runner/handshake_server.go
+++ b/ssl/test/runner/handshake_server.go
@@ -120,6 +120,9 @@
c.sendAlert(alertUnexpectedMessage)
return false, unexpectedMessageError(hs.clientHello, msg)
}
+ if config.Bugs.RequireFastradioPadding && len(hs.clientHello.raw) < 1000 {
+ return false, errors.New("tls: ClientHello record size should be larger than 1000 bytes when padding enabled.")
+ }
if c.isDTLS && !config.Bugs.SkipHelloVerifyRequest {
// Per RFC 6347, the version field in HelloVerifyRequest SHOULD
diff --git a/ssl/test/runner/runner.go b/ssl/test/runner/runner.go
index 421940d..ecf80db 100644
--- a/ssl/test/runner/runner.go
+++ b/ssl/test/runner/runner.go
@@ -2156,6 +2156,29 @@
})
}
+func addFastRadioPaddingTests() {
+ testCases = append(testCases, testCase {
+ protocol: tls,
+ name: "FastRadio-Padding",
+ config: Config{
+ Bugs: ProtocolBugs{
+ RequireFastradioPadding: true,
+ },
+ },
+ flags: []string{"-fastradio-padding"},
+ })
+ testCases = append(testCases, testCase {
+ protocol: dtls,
+ name: "FastRadio-Padding",
+ config: Config{
+ Bugs: ProtocolBugs{
+ RequireFastradioPadding: true,
+ },
+ },
+ flags: []string{"-fastradio-padding"},
+ })
+}
+
var testHashes = []struct {
name string
id uint8
@@ -2337,6 +2360,7 @@
addRenegotiationTests()
addDTLSReplayTests()
addSigningHashTests()
+ addFastRadioPaddingTests()
for _, async := range []bool{false, true} {
for _, splitHandshake := range []bool{false, true} {
for _, protocol := range []protocol{tls, dtls} {
diff --git a/ssl/test/test_config.cc b/ssl/test/test_config.cc
index e8034ce..59874ef 100644
--- a/ssl/test/test_config.cc
+++ b/ssl/test/test_config.cc
@@ -65,6 +65,7 @@
{ "-enable-ocsp-stapling", &TestConfig::enable_ocsp_stapling },
{ "-enable-signed-cert-timestamps",
&TestConfig::enable_signed_cert_timestamps },
+ { "-fastradio-padding", &TestConfig::fastradio_padding },
};
const size_t kNumBoolFlags = sizeof(kBoolFlags) / sizeof(kBoolFlags[0]);
@@ -124,7 +125,8 @@
renegotiate(false),
allow_unsafe_legacy_renegotiation(false),
enable_ocsp_stapling(false),
- enable_signed_cert_timestamps(false) {
+ enable_signed_cert_timestamps(false),
+ fastradio_padding(false) {
}
bool ParseConfig(int argc, char **argv, TestConfig *out_config) {
diff --git a/ssl/test/test_config.h b/ssl/test/test_config.h
index 5f050a8..f778c28 100644
--- a/ssl/test/test_config.h
+++ b/ssl/test/test_config.h
@@ -63,6 +63,7 @@
std::string expected_ocsp_response;
bool enable_signed_cert_timestamps;
std::string expected_signed_cert_timestamps;
+ bool fastradio_padding;
};
bool ParseConfig(int argc, char **argv, TestConfig *out_config);
