uquic/integrationtests/self/key_update_test.go
2022-10-11 16:38:44 +04:00

100 lines
2.8 KiB
Go

package self_test
import (
"context"
"fmt"
"io"
"net"
"github.com/lucas-clemente/quic-go"
"github.com/lucas-clemente/quic-go/internal/handshake"
"github.com/lucas-clemente/quic-go/internal/protocol"
"github.com/lucas-clemente/quic-go/logging"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
var (
sentHeaders []*logging.ExtendedHeader
receivedHeaders []*logging.ShortHeader
)
func countKeyPhases() (sent, received int) {
lastKeyPhase := protocol.KeyPhaseOne
for _, hdr := range sentHeaders {
if hdr.IsLongHeader {
continue
}
if hdr.KeyPhase != lastKeyPhase {
sent++
lastKeyPhase = hdr.KeyPhase
}
}
lastKeyPhase = protocol.KeyPhaseOne
for _, hdr := range receivedHeaders {
if hdr.KeyPhase != lastKeyPhase {
received++
lastKeyPhase = hdr.KeyPhase
}
}
return
}
type keyUpdateConnTracer struct {
logging.NullConnectionTracer
}
func (t *keyUpdateConnTracer) SentPacket(hdr *logging.ExtendedHeader, size logging.ByteCount, ack *logging.AckFrame, frames []logging.Frame) {
sentHeaders = append(sentHeaders, hdr)
}
func (t *keyUpdateConnTracer) ReceivedShortHeaderPacket(hdr *logging.ShortHeader, size logging.ByteCount, frames []logging.Frame) {
receivedHeaders = append(receivedHeaders, hdr)
}
var _ = Describe("Key Update tests", func() {
var server quic.Listener
runServer := func() {
var err error
server, err = quic.ListenAddr("localhost:0", getTLSConfig(), nil)
Expect(err).ToNot(HaveOccurred())
go func() {
defer GinkgoRecover()
conn, err := server.Accept(context.Background())
Expect(err).ToNot(HaveOccurred())
str, err := conn.OpenUniStream()
Expect(err).ToNot(HaveOccurred())
defer str.Close()
_, err = str.Write(PRDataLong)
Expect(err).ToNot(HaveOccurred())
}()
}
It("downloads a large file", func() {
origKeyUpdateInterval := handshake.KeyUpdateInterval
defer func() { handshake.KeyUpdateInterval = origKeyUpdateInterval }()
handshake.KeyUpdateInterval = 1 // update keys as frequently as possible
runServer()
conn, err := quic.DialAddr(
fmt.Sprintf("localhost:%d", server.Addr().(*net.UDPAddr).Port),
getTLSClientConfig(),
getQuicConfig(&quic.Config{Tracer: newTracer(func() logging.ConnectionTracer { return &keyUpdateConnTracer{} })}),
)
Expect(err).ToNot(HaveOccurred())
str, err := conn.AcceptUniStream(context.Background())
Expect(err).ToNot(HaveOccurred())
data, err := io.ReadAll(str)
Expect(err).ToNot(HaveOccurred())
Expect(data).To(Equal(PRDataLong))
Expect(conn.CloseWithError(0, "")).To(Succeed())
keyPhasesSent, keyPhasesReceived := countKeyPhases()
fmt.Fprintf(GinkgoWriter, "Used %d key phases on outgoing and %d key phases on incoming packets.\n", keyPhasesSent, keyPhasesReceived)
Expect(keyPhasesReceived).To(BeNumerically(">", 10))
Expect(keyPhasesReceived).To(BeNumerically("~", keyPhasesSent, 2))
})
})