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Extend Persist with AttestationKey to record a hardware-backed attestation key for the node's identity. Add a flag to tailscaled to allow users to control the use of hardware-backed keys to bind node identity to individual machines. Updates tailscale/corp#31269 Change-Id: Idcf40d730a448d85f07f1bebf387f086d4c58be3 Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
74 lines
2.3 KiB
Go
74 lines
2.3 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package feature
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import (
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"net/http"
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"net/url"
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"tailscale.com/types/logger"
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"tailscale.com/types/persist"
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)
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// HookCanAutoUpdate is a hook for the clientupdate package
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// to conditionally initialize.
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var HookCanAutoUpdate Hook[func() bool]
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// CanAutoUpdate reports whether the current binary is built with auto-update
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// support and, if so, whether the current platform supports it.
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func CanAutoUpdate() bool {
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if f, ok := HookCanAutoUpdate.GetOk(); ok {
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return f()
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}
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return false
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}
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// HookProxyFromEnvironment is a hook for feature/useproxy to register
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// a function to use as http.ProxyFromEnvironment.
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var HookProxyFromEnvironment Hook[func(*http.Request) (*url.URL, error)]
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// HookProxyInvalidateCache is a hook for feature/useproxy to register
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// [tshttpproxy.InvalidateCache].
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var HookProxyInvalidateCache Hook[func()]
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// HookProxyGetAuthHeader is a hook for feature/useproxy to register
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// [tshttpproxy.GetAuthHeader].
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var HookProxyGetAuthHeader Hook[func(*url.URL) (string, error)]
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// HookProxySetSelfProxy is a hook for feature/useproxy to register
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// [tshttpproxy.SetSelfProxy].
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var HookProxySetSelfProxy Hook[func(...string)]
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// HookProxySetTransportGetProxyConnectHeader is a hook for feature/useproxy to register
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// [tshttpproxy.SetTransportGetProxyConnectHeader].
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var HookProxySetTransportGetProxyConnectHeader Hook[func(*http.Transport)]
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// HookTPMAvailable is a hook that reports whether a TPM device is supported
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// and available.
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var HookTPMAvailable Hook[func() bool]
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var HookGenerateAttestationKeyIfEmpty Hook[func(p *persist.Persist, logf logger.Logf) (bool, error)]
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// TPMAvailable reports whether a TPM device is supported and available.
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func TPMAvailable() bool {
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if f, ok := HookTPMAvailable.GetOk(); ok {
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return f()
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}
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return false
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}
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// HookHardwareAttestationAvailable is a hook that reports whether hardware
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// attestation is supported and available.
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var HookHardwareAttestationAvailable Hook[func() bool]
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// HardwareAttestationAvailable reports whether hardware attestation is
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// supported and available (TPM on Windows/Linux, Secure Enclave on macOS|iOS,
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// KeyStore on Android)
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func HardwareAttestationAvailable() bool {
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if f, ok := HookHardwareAttestationAvailable.GetOk(); ok {
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return f()
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}
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return false
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}
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