mirror of
https://github.com/caddyserver/caddy.git
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chore: Update quic-go to v0.42.0 (#6176)
* update quic-go to v0.42.0 * use a rate limiter to control QUIC source address verification * Lint * remove deprecated ListenQUIC * remove number of requests tracking * increase the number of handshakes before source address verification is needed * remove references to request counters * remove deprecated listen* --------- Co-authored-by: Francis Lavoie <lavofr@gmail.com> Co-authored-by: WeidiDeng <weidi_deng@icloud.com>
This commit is contained in:
Marten Seemann
GitHub
parent
63d597c09d
commit
32f7dd44ae
6
go.mod
6
go.mod
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@ -18,7 +18,7 @@ require (
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github.com/klauspost/cpuid/v2 v2.2.5
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github.com/mholt/acmez v1.2.0
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github.com/prometheus/client_golang v1.18.0
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github.com/quic-go/quic-go v0.41.0
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github.com/quic-go/quic-go v0.42.0
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github.com/smallstep/certificates v0.25.0
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github.com/smallstep/nosql v0.6.0
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github.com/smallstep/truststore v0.12.1
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@ -41,7 +41,7 @@ require (
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golang.org/x/net v0.21.0
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golang.org/x/sync v0.5.0
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golang.org/x/term v0.17.0
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google.golang.org/genproto/googleapis/api v0.0.0-20231120223509-83a465c0220f
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golang.org/x/time v0.5.0
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gopkg.in/natefinch/lumberjack.v2 v2.2.1
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gopkg.in/yaml.v3 v3.0.1
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)
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@ -69,7 +69,7 @@ require (
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go.opentelemetry.io/contrib/propagators/b3 v1.17.0 // indirect
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go.opentelemetry.io/contrib/propagators/jaeger v1.17.0 // indirect
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go.opentelemetry.io/contrib/propagators/ot v1.17.0 // indirect
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go.uber.org/mock v0.3.0 // indirect
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go.uber.org/mock v0.4.0 // indirect
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google.golang.org/genproto/googleapis/api v0.0.0-20231120223509-83a465c0220f // indirect
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google.golang.org/genproto/googleapis/rpc v0.0.0-20231127180814-3a041ad873d4 // indirect
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)
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8
go.sum
8
go.sum
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@ -487,8 +487,8 @@ github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k
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github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
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github.com/quic-go/qpack v0.4.0 h1:Cr9BXA1sQS2SmDUWjSofMPNKmvF6IiIfDRmgU0w1ZCo=
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github.com/quic-go/qpack v0.4.0/go.mod h1:UZVnYIfi5GRk+zI9UMaCPsmZ2xKJP7XBUvVyT1Knj9A=
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github.com/quic-go/quic-go v0.41.0 h1:aD8MmHfgqTURWNJy48IYFg2OnxwHT3JL7ahGs73lb4k=
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github.com/quic-go/quic-go v0.41.0/go.mod h1:qCkNjqczPEvgsOnxZ0eCD14lv+B2LHlFAB++CNOh9hA=
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github.com/quic-go/quic-go v0.42.0 h1:uSfdap0eveIl8KXnipv9K7nlwZ5IqLlYOpJ58u5utpM=
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github.com/quic-go/quic-go v0.42.0/go.mod h1:132kz4kL3F9vxhW3CtQJLDVwcFe5wdWeJXXijhsO57M=
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github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
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github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
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github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
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@ -653,8 +653,8 @@ go.uber.org/automaxprocs v1.5.3 h1:kWazyxZUrS3Gs4qUpbwo5kEIMGe/DAvi5Z4tl2NW4j8=
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go.uber.org/automaxprocs v1.5.3/go.mod h1:eRbA25aqJrxAbsLO0xy5jVwPt7FQnRgjW+efnwa1WM0=
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go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
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go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
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go.uber.org/mock v0.3.0 h1:3mUxI1No2/60yUYax92Pt8eNOEecx2D3lcXZh2NEZJo=
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go.uber.org/mock v0.3.0/go.mod h1:a6FSlNadKUHUa9IP5Vyt1zh4fC7uAwxMutEAscFbkZc=
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go.uber.org/mock v0.4.0 h1:VcM4ZOtdbR4f6VXfiOpwpVJDL6lCReaZ6mw31wqh7KU=
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go.uber.org/mock v0.4.0/go.mod h1:a6FSlNadKUHUa9IP5Vyt1zh4fC7uAwxMutEAscFbkZc=
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go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
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go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
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go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
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140
listeners.go
140
listeners.go
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@ -28,11 +28,11 @@ import (
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/quic-go/quic-go"
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"github.com/quic-go/quic-go/http3"
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"go.uber.org/zap"
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"golang.org/x/time/rate"
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"github.com/caddyserver/caddy/v2/internal"
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)
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@ -406,48 +406,12 @@ func JoinNetworkAddress(network, host, port string) string {
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return a
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}
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// DEPRECATED: Use NetworkAddress.Listen instead. This function will likely be changed or removed in the future.
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func Listen(network, addr string) (net.Listener, error) {
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// a 0 timeout means Go uses its default
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return ListenTimeout(network, addr, 0)
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}
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// DEPRECATED: Use NetworkAddress.Listen instead. This function will likely be changed or removed in the future.
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func ListenTimeout(network, addr string, keepalivePeriod time.Duration) (net.Listener, error) {
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netAddr, err := ParseNetworkAddress(JoinNetworkAddress(network, addr, ""))
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if err != nil {
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return nil, err
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}
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ln, err := netAddr.Listen(context.TODO(), 0, net.ListenConfig{KeepAlive: keepalivePeriod})
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if err != nil {
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return nil, err
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}
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return ln.(net.Listener), nil
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}
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// DEPRECATED: Use NetworkAddress.Listen instead. This function will likely be changed or removed in the future.
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func ListenPacket(network, addr string) (net.PacketConn, error) {
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netAddr, err := ParseNetworkAddress(JoinNetworkAddress(network, addr, ""))
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if err != nil {
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return nil, err
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}
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ln, err := netAddr.Listen(context.TODO(), 0, net.ListenConfig{})
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if err != nil {
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return nil, err
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}
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return ln.(net.PacketConn), nil
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}
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// ListenQUIC returns a quic.EarlyListener suitable for use in a Caddy module.
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// The network will be transformed into a QUIC-compatible type (if unix, then
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// unixgram will be used; otherwise, udp will be used).
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//
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// NOTE: This API is EXPERIMENTAL and may be changed or removed.
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func (na NetworkAddress) ListenQUIC(ctx context.Context, portOffset uint, config net.ListenConfig, tlsConf *tls.Config, activeRequests *int64) (http3.QUICEarlyListener, error) {
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func (na NetworkAddress) ListenQUIC(ctx context.Context, portOffset uint, config net.ListenConfig, tlsConf *tls.Config) (http3.QUICEarlyListener, error) {
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lnKey := listenerKey("quic"+na.Network, na.JoinHostPort(portOffset))
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sharedEarlyListener, _, err := listenerPool.LoadOrNew(lnKey, func() (Destructor, error) {
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@ -468,20 +432,22 @@ func (na NetworkAddress) ListenQUIC(ctx context.Context, portOffset uint, config
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}
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}
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sqs := newSharedQUICState(tlsConf, activeRequests)
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sqs := newSharedQUICState(tlsConf)
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// http3.ConfigureTLSConfig only uses this field and tls App sets this field as well
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//nolint:gosec
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quicTlsConfig := &tls.Config{GetConfigForClient: sqs.getConfigForClient}
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earlyLn, err := quic.ListenEarly(h3ln, http3.ConfigureTLSConfig(quicTlsConfig), &quic.Config{
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Allow0RTT: true,
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RequireAddressValidation: func(clientAddr net.Addr) bool {
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// TODO: make tunable?
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return sqs.getActiveRequests() > 1000
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},
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})
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// Require clients to verify their source address when we're handling more than 1000 handshakes per second.
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// TODO: make tunable?
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limiter := rate.NewLimiter(1000, 1000)
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tr := &quic.Transport{
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Conn: h3ln,
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VerifySourceAddress: func(addr net.Addr) bool { return !limiter.Allow() },
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}
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earlyLn, err := tr.ListenEarly(http3.ConfigureTLSConfig(quicTlsConfig), &quic.Config{Allow0RTT: true})
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if err != nil {
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return nil, err
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}
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// TODO: figure out when to close the listener and the transport
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// using the original net.PacketConn to close them properly
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return &sharedQuicListener{EarlyListener: earlyLn, packetConn: ln, sqs: sqs, key: lnKey}, nil
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})
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@ -490,47 +456,8 @@ func (na NetworkAddress) ListenQUIC(ctx context.Context, portOffset uint, config
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}
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sql := sharedEarlyListener.(*sharedQuicListener)
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// add current tls.Config to sqs, so GetConfigForClient will always return the latest tls.Config in case of context cancellation,
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// and the request counter will reflect current http server
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ctx, cancel := sql.sqs.addState(tlsConf, activeRequests)
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return &fakeCloseQuicListener{
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sharedQuicListener: sql,
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context: ctx,
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contextCancel: cancel,
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}, nil
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}
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// DEPRECATED: Use NetworkAddress.ListenQUIC instead. This function will likely be changed or removed in the future.
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// TODO: See if we can find a more elegant solution closer to the new NetworkAddress.Listen API.
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func ListenQUIC(ln net.PacketConn, tlsConf *tls.Config, activeRequests *int64) (http3.QUICEarlyListener, error) {
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lnKey := listenerKey("quic+"+ln.LocalAddr().Network(), ln.LocalAddr().String())
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sharedEarlyListener, _, err := listenerPool.LoadOrNew(lnKey, func() (Destructor, error) {
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sqs := newSharedQUICState(tlsConf, activeRequests)
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// http3.ConfigureTLSConfig only uses this field and tls App sets this field as well
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//nolint:gosec
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quicTlsConfig := &tls.Config{GetConfigForClient: sqs.getConfigForClient}
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earlyLn, err := quic.ListenEarly(ln, http3.ConfigureTLSConfig(quicTlsConfig), &quic.Config{
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Allow0RTT: true,
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RequireAddressValidation: func(clientAddr net.Addr) bool {
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// TODO: make tunable?
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return sqs.getActiveRequests() > 1000
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},
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})
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if err != nil {
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return nil, err
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}
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return &sharedQuicListener{EarlyListener: earlyLn, sqs: sqs, key: lnKey}, nil
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})
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if err != nil {
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return nil, err
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}
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sql := sharedEarlyListener.(*sharedQuicListener)
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// add current tls.Config and request counter to sqs, so GetConfigForClient will always return the latest tls.Config in case of context cancellation,
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// and the request counter will reflect current http server
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ctx, cancel := sql.sqs.addState(tlsConf, activeRequests)
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// add current tls.Config to sqs, so GetConfigForClient will always return the latest tls.Config in case of context cancellation
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ctx, cancel := sql.sqs.addState(tlsConf)
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return &fakeCloseQuicListener{
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sharedQuicListener: sql,
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@ -551,25 +478,21 @@ type contextAndCancelFunc struct {
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context.CancelFunc
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}
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// sharedQUICState manages GetConfigForClient and current number of active requests
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// sharedQUICState manages GetConfigForClient
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// see issue: https://github.com/caddyserver/caddy/pull/4849
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type sharedQUICState struct {
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rmu sync.RWMutex
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tlsConfs map[*tls.Config]contextAndCancelFunc
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requestCounters map[*tls.Config]*int64
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activeTlsConf *tls.Config
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activeRequestsCounter *int64
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rmu sync.RWMutex
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tlsConfs map[*tls.Config]contextAndCancelFunc
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activeTlsConf *tls.Config
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}
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// newSharedQUICState creates a new sharedQUICState
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func newSharedQUICState(tlsConfig *tls.Config, activeRequests *int64) *sharedQUICState {
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func newSharedQUICState(tlsConfig *tls.Config) *sharedQUICState {
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sqtc := &sharedQUICState{
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tlsConfs: make(map[*tls.Config]contextAndCancelFunc),
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requestCounters: make(map[*tls.Config]*int64),
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activeTlsConf: tlsConfig,
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activeRequestsCounter: activeRequests,
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tlsConfs: make(map[*tls.Config]contextAndCancelFunc),
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activeTlsConf: tlsConfig,
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}
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sqtc.addState(tlsConfig, activeRequests)
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sqtc.addState(tlsConfig)
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return sqtc
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}
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@ -580,17 +503,9 @@ func (sqs *sharedQUICState) getConfigForClient(ch *tls.ClientHelloInfo) (*tls.Co
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return sqs.activeTlsConf.GetConfigForClient(ch)
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}
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// getActiveRequests returns the number of active requests
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func (sqs *sharedQUICState) getActiveRequests() int64 {
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// Prevent a race when a context is cancelled and active request counter is being changed
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sqs.rmu.RLock()
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defer sqs.rmu.RUnlock()
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return atomic.LoadInt64(sqs.activeRequestsCounter)
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}
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// addState adds tls.Config and activeRequests to the map if not present and returns the corresponding context and its cancelFunc
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// so that when cancelled, the active tls.Config and request counter will change
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func (sqs *sharedQUICState) addState(tlsConfig *tls.Config, activeRequests *int64) (context.Context, context.CancelFunc) {
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// so that when cancelled, the active tls.Config will change
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func (sqs *sharedQUICState) addState(tlsConfig *tls.Config) (context.Context, context.CancelFunc) {
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sqs.rmu.Lock()
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defer sqs.rmu.Unlock()
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@ -606,19 +521,16 @@ func (sqs *sharedQUICState) addState(tlsConfig *tls.Config, activeRequests *int6
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defer sqs.rmu.Unlock()
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delete(sqs.tlsConfs, tlsConfig)
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delete(sqs.requestCounters, tlsConfig)
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if sqs.activeTlsConf == tlsConfig {
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// select another tls.Config and request counter, if there is none,
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// select another tls.Config, if there is none,
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// related sharedQuicListener will be destroyed anyway
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for tc, counter := range sqs.requestCounters {
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for tc := range sqs.tlsConfs {
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sqs.activeTlsConf = tc
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sqs.activeRequestsCounter = counter
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break
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}
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}
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}
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sqs.tlsConfs[tlsConfig] = contextAndCancelFunc{ctx, wrappedCancel}
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sqs.requestCounters[tlsConfig] = activeRequests
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// there should be at most 2 tls.Configs
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if len(sqs.tlsConfs) > 2 {
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Log().Warn("quic listener tls configs are more than 2", zap.Int("number of configs", len(sqs.tlsConfs)))
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@ -27,7 +27,6 @@ import (
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"runtime"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/caddyserver/certmagic"
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@ -43,8 +42,6 @@ import (
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// Server describes an HTTP server.
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type Server struct {
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activeRequests int64 // accessed atomically
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// Socket addresses to which to bind listeners. Accepts
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// [network addresses](/docs/conventions#network-addresses)
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// that may include port ranges. Listener addresses must
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@ -274,10 +271,6 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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// advertise HTTP/3, if enabled
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if s.h3server != nil {
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// keep track of active requests for QUIC transport purposes
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atomic.AddInt64(&s.activeRequests, 1)
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defer atomic.AddInt64(&s.activeRequests, -1)
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if r.ProtoMajor < 3 {
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err := s.h3server.SetQuicHeaders(w.Header())
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if err != nil {
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@ -567,7 +560,7 @@ func (s *Server) findLastRouteWithHostMatcher() int {
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// the listener, with Server s as the handler.
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func (s *Server) serveHTTP3(addr caddy.NetworkAddress, tlsCfg *tls.Config) error {
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addr.Network = getHTTP3Network(addr.Network)
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h3ln, err := addr.ListenQUIC(s.ctx, 0, net.ListenConfig{}, tlsCfg, &s.activeRequests)
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h3ln, err := addr.ListenQUIC(s.ctx, 0, net.ListenConfig{}, tlsCfg)
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if err != nil {
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return fmt.Errorf("starting HTTP/3 QUIC listener: %v", err)
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}
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