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implement packing of packets for gQUIC 44

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This commit is contained in:
Marten Seemann
2018-08-26 21:23:59 +07:00
parent 73a1a0e509
commit 01100c56df
2 changed files with 54 additions and 6 deletions
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48
packet_packer_test.go
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@@ -103,6 +103,7 @@ var _ = Describe("Packet packer", func() {
Context("determining the maximum packet size", func() {
connID := protocol.ConnectionID{1, 2, 3, 4, 5, 6, 7, 8}
It("uses the minimum initial size, if it can't determine if the remote address is IPv4 or IPv6", func() {
remoteAddr := &net.TCPAddr{}
packer = newPacketPacker(connID, connID, 1, nil, remoteAddr, nil, nil, nil, nil, protocol.PerspectiveServer, protocol.VersionWhatever)
@@ -176,6 +177,7 @@ var _ = Describe("Packet packer", func() {
})
It("it omits the connection ID for forward-secure packets", func() {
packer.version = protocol.Version43
ph := packer.getHeader(protocol.EncryptionForwardSecure)
Expect(ph.DestConnectionID.Len()).ToNot(BeZero())
packer.SetOmitConnectionID()
@@ -225,6 +227,52 @@ var _ = Describe("Packet packer", func() {
})
})
Context("Header (for gQUIC 44)", func() {
BeforeEach(func() {
packer.version = protocol.Version44
})
It("sends an Initial packet as the first packets, for the client", func() {
packer.perspective = protocol.PerspectiveClient
packer.hasSentPacket = false
h := packer.getHeader(protocol.EncryptionUnencrypted)
Expect(h.IsLongHeader).To(BeTrue())
Expect(h.Type).To(Equal(protocol.PacketTypeInitial))
Expect(h.Version).To(Equal(protocol.Version44))
Expect(h.DestConnectionID).To(Equal(packer.destConnID))
Expect(h.SrcConnectionID).To(Equal(packer.srcConnID))
Expect(h.PacketNumberLen).To(Equal(protocol.PacketNumberLen4))
})
It("sends a Handshake for non-forward-secure packets, for the server", func() {
packer.perspective = protocol.PerspectiveServer
h := packer.getHeader(protocol.EncryptionUnencrypted)
Expect(h.IsLongHeader).To(BeTrue())
Expect(h.Type).To(Equal(protocol.PacketTypeHandshake))
Expect(h.Version).To(Equal(protocol.Version44))
Expect(h.DestConnectionID).To(Equal(packer.destConnID))
Expect(h.SrcConnectionID).To(Equal(packer.srcConnID))
Expect(h.PacketNumberLen).To(Equal(protocol.PacketNumberLen4))
})
It("sets the Diversification Nonce for secure packets", func() {
packer.perspective = protocol.PerspectiveServer
Expect(divNonce).ToNot(BeEmpty())
h := packer.getHeader(protocol.EncryptionSecure)
Expect(h.IsLongHeader).To(BeTrue())
Expect(h.Version).To(Equal(protocol.Version44))
Expect(h.Type).To(Equal(protocol.PacketType0RTT))
Expect(h.DiversificationNonce).To(Equal(divNonce))
})
It("uses the Short Header for forward-secure packets", func() {
h := packer.getHeader(protocol.EncryptionForwardSecure)
Expect(h.IsLongHeader).To(BeFalse())
Expect(h.IsPublicHeader).To(BeFalse())
Expect(h.DestConnectionID).To(Equal(packer.destConnID))
})
})
Context("Header (for IETF draft QUIC)", func() {
BeforeEach(func() {
packer.version = versionIETFHeader