mirror of
https://github.com/refraction-networking/uquic.git
synced 2025-04-04 12:47:36 +03:00
277 lines
9.7 KiB
Go
277 lines
9.7 KiB
Go
package quic
|
|
|
|
import (
|
|
"bytes"
|
|
"net"
|
|
"time"
|
|
|
|
"github.com/lucas-clemente/quic-go/crypto"
|
|
"github.com/lucas-clemente/quic-go/handshake"
|
|
"github.com/lucas-clemente/quic-go/protocol"
|
|
"github.com/lucas-clemente/quic-go/qerr"
|
|
"github.com/lucas-clemente/quic-go/utils"
|
|
|
|
. "github.com/onsi/ginkgo"
|
|
. "github.com/onsi/gomega"
|
|
)
|
|
|
|
type mockSession struct {
|
|
connectionID protocol.ConnectionID
|
|
packetCount int
|
|
closed bool
|
|
closeReason error
|
|
}
|
|
|
|
func (s *mockSession) handlePacket(*receivedPacket) {
|
|
s.packetCount++
|
|
}
|
|
|
|
func (s *mockSession) run() {}
|
|
func (s *mockSession) Close(e error) error {
|
|
s.closeReason = e
|
|
s.closed = true
|
|
return nil
|
|
}
|
|
func (s *mockSession) AcceptStream() (Stream, error) {
|
|
panic("not implemented")
|
|
}
|
|
func (s *mockSession) OpenStream() (Stream, error) {
|
|
return &stream{streamID: 1337}, nil
|
|
}
|
|
func (s *mockSession) OpenStreamSync() (Stream, error) {
|
|
panic("not implemented")
|
|
}
|
|
func (s *mockSession) RemoteAddr() net.Addr {
|
|
panic("not implemented")
|
|
}
|
|
|
|
var _ Session = &mockSession{}
|
|
|
|
func newMockSession(conn connection, v protocol.VersionNumber, connectionID protocol.ConnectionID, sCfg *handshake.ServerConfig, closeCallback closeCallback) (packetHandler, error) {
|
|
return &mockSession{
|
|
connectionID: connectionID,
|
|
}, nil
|
|
}
|
|
|
|
var _ = Describe("Server", func() {
|
|
var (
|
|
serv *server
|
|
conn *mockPacketConn
|
|
connStateStatus ConnState
|
|
connStateCalled bool
|
|
firstPacket []byte // a valid first packet for a new connection with connectionID 0x4cfa9f9b668619f6 (= connID)
|
|
connID = protocol.ConnectionID(0x4cfa9f9b668619f6)
|
|
udpAddr = &net.UDPAddr{IP: net.IPv4(192, 168, 100, 200), Port: 1337}
|
|
)
|
|
|
|
BeforeEach(func() {
|
|
serv = &server{
|
|
sessions: map[protocol.ConnectionID]packetHandler{},
|
|
newSession: newMockSession,
|
|
conn: &mockPacketConn{},
|
|
config: &Config{
|
|
ConnState: func(_ Session, cs ConnState) {
|
|
connStateStatus = cs
|
|
connStateCalled = true
|
|
},
|
|
},
|
|
}
|
|
conn = serv.conn.(*mockPacketConn)
|
|
b := &bytes.Buffer{}
|
|
utils.WriteUint32(b, protocol.VersionNumberToTag(protocol.SupportedVersions[0]))
|
|
firstPacket = []byte{0x09, 0xf6, 0x19, 0x86, 0x66, 0x9b, 0x9f, 0xfa, 0x4c}
|
|
firstPacket = append(append(firstPacket, b.Bytes()...), 0x01)
|
|
})
|
|
|
|
Context("with mock session", func() {
|
|
It("returns the address", func() {
|
|
conn.addr = &net.UDPAddr{
|
|
IP: net.IPv4(192, 168, 13, 37),
|
|
Port: 1234,
|
|
}
|
|
Expect(serv.Addr().String()).To(Equal("192.168.13.37:1234"))
|
|
})
|
|
|
|
It("composes version negotiation packets", func() {
|
|
expected := append(
|
|
[]byte{0x01 | 0x08, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
|
|
protocol.SupportedVersionsAsTags...,
|
|
)
|
|
Expect(composeVersionNegotiation(1)).To(Equal(expected))
|
|
})
|
|
|
|
It("creates new sessions", func() {
|
|
err := serv.handlePacket(nil, nil, firstPacket)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID].(*mockSession).connectionID).To(Equal(connID))
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(1))
|
|
Eventually(func() bool { return connStateCalled }).Should(BeTrue())
|
|
Expect(connStateStatus).To(Equal(ConnStateVersionNegotiated))
|
|
})
|
|
|
|
It("assigns packets to existing sessions", func() {
|
|
err := serv.handlePacket(nil, nil, firstPacket)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
err = serv.handlePacket(nil, nil, []byte{0x08, 0xf6, 0x19, 0x86, 0x66, 0x9b, 0x9f, 0xfa, 0x4c, 0x01})
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID].(*mockSession).connectionID).To(Equal(connID))
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(2))
|
|
})
|
|
|
|
It("closes and deletes sessions", func() {
|
|
serv.deleteClosedSessionsAfter = time.Second // make sure that the nil value for the closed session doesn't get deleted in this test
|
|
err := serv.handlePacket(nil, nil, append(firstPacket, (&crypto.NullAEAD{}).Seal(nil, nil, 0, firstPacket)...))
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID]).ToNot(BeNil())
|
|
serv.closeCallback(connID)
|
|
// The server should now have closed the session, leaving a nil value in the sessions map
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID]).To(BeNil())
|
|
})
|
|
|
|
It("deletes nil session entries after a wait time", func() {
|
|
serv.deleteClosedSessionsAfter = 25 * time.Millisecond
|
|
err := serv.handlePacket(nil, nil, append(firstPacket, (&crypto.NullAEAD{}).Seal(nil, nil, 0, firstPacket)...))
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
serv.closeCallback(connID)
|
|
Expect(serv.sessions).To(HaveKey(connID))
|
|
Eventually(func() map[protocol.ConnectionID]packetHandler { return serv.sessions }).ShouldNot(HaveKey(connID))
|
|
})
|
|
|
|
It("closes sessions and the connection when Close is called", func() {
|
|
session := &mockSession{}
|
|
serv.sessions[1] = session
|
|
err := serv.Close()
|
|
Expect(err).NotTo(HaveOccurred())
|
|
Expect(session.closed).To(BeTrue())
|
|
Expect(conn.closed).To(BeTrue())
|
|
})
|
|
|
|
It("ignores packets for closed sessions", func() {
|
|
serv.sessions[connID] = nil
|
|
err := serv.handlePacket(nil, nil, []byte{0x08, 0xf6, 0x19, 0x86, 0x66, 0x9b, 0x9f, 0xfa, 0x4c, 0x01})
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID]).To(BeNil())
|
|
})
|
|
|
|
It("ignores delayed packets with mismatching versions", func() {
|
|
err := serv.handlePacket(nil, nil, firstPacket)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(1))
|
|
b := &bytes.Buffer{}
|
|
// add an unsupported version
|
|
utils.WriteUint32(b, protocol.VersionNumberToTag(protocol.SupportedVersions[0]-2))
|
|
data := []byte{0x09, 0xf6, 0x19, 0x86, 0x66, 0x9b, 0x9f, 0xfa, 0x4c}
|
|
data = append(append(data, b.Bytes()...), 0x01)
|
|
err = serv.handlePacket(nil, nil, data)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
// if we didn't ignore the packet, the server would try to send a version negotation packet, which would make the test panic because it doesn't have a udpConn
|
|
Expect(conn.dataWritten.Bytes()).To(BeEmpty())
|
|
// make sure the packet was *not* passed to session.handlePacket()
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(1))
|
|
})
|
|
|
|
It("errors on invalid public header", func() {
|
|
err := serv.handlePacket(nil, nil, nil)
|
|
Expect(err.(*qerr.QuicError).ErrorCode).To(Equal(qerr.InvalidPacketHeader))
|
|
})
|
|
|
|
It("errors on large packets", func() {
|
|
err := serv.handlePacket(nil, nil, bytes.Repeat([]byte{'a'}, int(protocol.MaxPacketSize)+1))
|
|
Expect(err).To(MatchError(qerr.PacketTooLarge))
|
|
})
|
|
|
|
It("ignores public resets for unknown connections", func() {
|
|
err := serv.handlePacket(nil, nil, writePublicReset(999, 1, 1337))
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(BeEmpty())
|
|
})
|
|
|
|
It("ignores public resets for known connections", func() {
|
|
err := serv.handlePacket(nil, nil, firstPacket)
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(1))
|
|
err = serv.handlePacket(nil, nil, writePublicReset(connID, 1, 1337))
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(1))
|
|
})
|
|
|
|
It("ignores invalid public resets for known connections", func() {
|
|
err := serv.handlePacket(nil, nil, firstPacket)
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(1))
|
|
data := writePublicReset(connID, 1, 1337)
|
|
err = serv.handlePacket(nil, nil, data[:len(data)-2])
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(serv.sessions).To(HaveLen(1))
|
|
Expect(serv.sessions[connID].(*mockSession).packetCount).To(Equal(1))
|
|
})
|
|
})
|
|
|
|
It("setups with the right values", func() {
|
|
config := Config{
|
|
ConnState: func(_ Session, _ ConnState) {},
|
|
}
|
|
ln, err := NewListener(&config)
|
|
server := ln.(*server)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(server.deleteClosedSessionsAfter).To(Equal(protocol.ClosedSessionDeleteTimeout))
|
|
Expect(server.sessions).ToNot(BeNil())
|
|
Expect(server.scfg).ToNot(BeNil())
|
|
Expect(server.config).To(Equal(&config))
|
|
})
|
|
|
|
It("listens on a given address", func() {
|
|
var listenReturned bool
|
|
addr := "127.0.0.1:13579"
|
|
serv.conn = nil
|
|
go func() {
|
|
defer GinkgoRecover()
|
|
err := serv.ListenAddr(addr)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
listenReturned = true
|
|
}()
|
|
Eventually(func() net.PacketConn { return serv.conn }).ShouldNot(BeNil())
|
|
Expect(serv.Addr().String()).To(Equal(addr))
|
|
Consistently(func() bool { return listenReturned }).Should(BeFalse())
|
|
})
|
|
|
|
It("setups and responds with version negotiation", func() {
|
|
conn.dataToRead = []byte{0x09, 0x01, 0, 0, 0, 0, 0, 0, 0, 0x01, 0x01, 'Q', '0', '0', '0', 0x01}
|
|
conn.dataReadFrom = udpAddr
|
|
go func() {
|
|
defer GinkgoRecover()
|
|
err := serv.Listen(conn)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
}()
|
|
|
|
Eventually(func() int { return conn.dataWritten.Len() }).ShouldNot(BeZero())
|
|
Expect(conn.dataWrittenTo).To(Equal(udpAddr))
|
|
expected := append(
|
|
[]byte{0x9, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
|
|
protocol.SupportedVersionsAsTags...,
|
|
)
|
|
Expect(conn.dataWritten.Bytes()).To(Equal(expected))
|
|
})
|
|
|
|
It("sends a PublicReset for new connections that don't have the VersionFlag set", func() {
|
|
conn.dataReadFrom = udpAddr
|
|
conn.dataToRead = []byte{0x08, 0xf6, 0x19, 0x86, 0x66, 0x9b, 0x9f, 0xfa, 0x4c, 0x01}
|
|
go func() {
|
|
defer GinkgoRecover()
|
|
err := serv.Listen(conn)
|
|
Expect(err).ToNot(HaveOccurred())
|
|
}()
|
|
|
|
Eventually(func() int { return conn.dataWritten.Len() }).ShouldNot(BeZero())
|
|
Expect(conn.dataWrittenTo).To(Equal(udpAddr))
|
|
Expect(conn.dataWritten.Bytes()[0] & 0x02).ToNot(BeZero()) // check that the ResetFlag is set
|
|
Expect(serv.sessions).To(BeEmpty())
|
|
})
|
|
})
|