mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-04 23:45:34 +00:00
aae622314e
So if the control plane knows that something's broken about the node, it can include problem(s) in MapResponse and "tailscale status" will show it. (and GUIs in the future, as it's in ipnstate.Status/JSON) This also bumps the MapRequest.Version, though it's not strictly required. Doesn't hurt. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1277 lines
44 KiB
Go
1277 lines
44 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package tailcfg
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//go:generate go run tailscale.com/cmd/cloner --type=User,Node,Hostinfo,NetInfo,Login,DNSConfig,RegisterResponse,DERPRegion,DERPMap,DERPNode --clonefunc=true --output=tailcfg_clone.go
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import (
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"encoding/hex"
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"errors"
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"fmt"
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"reflect"
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"strings"
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"time"
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"go4.org/mem"
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"inet.af/netaddr"
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"tailscale.com/types/dnstype"
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"tailscale.com/types/key"
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"tailscale.com/types/opt"
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"tailscale.com/types/structs"
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"tailscale.com/util/dnsname"
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)
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// CurrentMapRequestVersion is the current MapRequest.Version value.
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//
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// History of versions:
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// 3: implicit compression, keep-alives
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// 4: opt-in keep-alives via KeepAlive field, opt-in compression via Compress
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// 5: 2020-10-19, implies IncludeIPv6, delta Peers/UserProfiles, supports MagicDNS
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// 6: 2020-12-07: means MapResponse.PacketFilter nil means unchanged
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// 7: 2020-12-15: FilterRule.SrcIPs accepts CIDRs+ranges, doesn't warn about 0.0.0.0/::
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// 8: 2020-12-19: client can buggily receive IPv6 addresses and routes if beta enabled server-side
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// 9: 2020-12-30: client doesn't auto-add implicit search domains from peers; only DNSConfig.Domains
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// 10: 2021-01-17: client understands MapResponse.PeerSeenChange
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// 11: 2021-03-03: client understands IPv6, multiple default routes, and goroutine dumping
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// 12: 2021-03-04: client understands PingRequest
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// 13: 2021-03-19: client understands FilterRule.IPProto
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// 14: 2021-04-07: client understands DNSConfig.Routes and DNSConfig.Resolvers
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// 15: 2021-04-12: client treats nil MapResponse.DNSConfig as meaning unchanged
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// 16: 2021-04-15: client understands Node.Online, MapResponse.OnlineChange
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// 17: 2021-04-18: MapResponse.Domain empty means unchanged
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// 18: 2021-04-19: MapResponse.Node nil means unchanged (all fields now omitempty)
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// 19: 2021-04-21: MapResponse.Debug.SleepSeconds
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// 20: 2021-06-11: MapResponse.LastSeen used even less (https://github.com/tailscale/tailscale/issues/2107)
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// 21: 2021-06-15: added MapResponse.DNSConfig.CertDomains
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// 22: 2021-06-16: added MapResponse.DNSConfig.ExtraRecords
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// 23: 2021-08-25: DNSConfig.Routes values may be empty (for ExtraRecords support in 1.14.1+)
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// 24: 2021-09-18: MapResponse.Health from control to node; node shows in "tailscale status"
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const CurrentMapRequestVersion = 24
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type StableID string
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type ID int64
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type UserID ID
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func (u UserID) IsZero() bool {
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return u == 0
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}
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type LoginID ID
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func (u LoginID) IsZero() bool {
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return u == 0
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}
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type NodeID ID
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func (u NodeID) IsZero() bool {
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return u == 0
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}
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type StableNodeID StableID
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func (u StableNodeID) IsZero() bool {
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return u == ""
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}
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// NodeKey is the curve25519 public key for a node.
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type NodeKey [32]byte
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// DiscoKey is the curve25519 public key for path discovery key.
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// It's never written to disk or reused between network start-ups.
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type DiscoKey [32]byte
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// User is an IPN user.
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//
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// A user can have multiple logins associated with it (e.g. gmail and github oauth).
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// (Note: none of our UIs support this yet.)
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//
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// Some properties are inhereted from the logins and can be overridden, such as
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// display name and profile picture.
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//
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// Other properties must be the same for all logins associated with a user.
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// In particular: domain. If a user has a "tailscale.io" domain login, they cannot
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// have a general gmail address login associated with the user.
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type User struct {
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ID UserID
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LoginName string `json:"-"` // not stored, filled from Login // TODO REMOVE
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DisplayName string // if non-empty overrides Login field
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ProfilePicURL string // if non-empty overrides Login field
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Domain string
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Logins []LoginID
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Created time.Time
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}
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type Login struct {
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_ structs.Incomparable
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ID LoginID
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Provider string
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LoginName string
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DisplayName string
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ProfilePicURL string
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Domain string
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}
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// A UserProfile is display-friendly data for a user.
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// It includes the LoginName for display purposes but *not* the Provider.
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// It also includes derived data from one of the user's logins.
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type UserProfile struct {
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ID UserID
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LoginName string // "alice@smith.com"; for display purposes only (provider is not listed)
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DisplayName string // "Alice Smith"
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ProfilePicURL string
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// Roles exists for legacy reasons, to keep old macOS clients
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// happy. It JSON marshals as [].
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Roles emptyStructJSONSlice
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}
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type emptyStructJSONSlice struct{}
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var emptyJSONSliceBytes = []byte("[]")
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func (emptyStructJSONSlice) MarshalJSON() ([]byte, error) {
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return emptyJSONSliceBytes, nil
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}
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func (emptyStructJSONSlice) UnmarshalJSON([]byte) error { return nil }
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type Node struct {
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ID NodeID
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StableID StableNodeID
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Name string // DNS
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// User is the user who created the node. If ACL tags are in
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// use for the node then it doesn't reflect the ACL identity
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// that the node is running as.
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User UserID
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// Sharer, if non-zero, is the user who shared this node, if different than User.
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Sharer UserID `json:",omitempty"`
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Key NodeKey
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KeyExpiry time.Time
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Machine key.MachinePublic
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DiscoKey DiscoKey
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Addresses []netaddr.IPPrefix // IP addresses of this Node directly
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AllowedIPs []netaddr.IPPrefix // range of IP addresses to route to this node
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Endpoints []string `json:",omitempty"` // IP+port (public via STUN, and local LANs)
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DERP string `json:",omitempty"` // DERP-in-IP:port ("127.3.3.40:N") endpoint
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Hostinfo Hostinfo
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Created time.Time
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// PrimaryRoutes are the routes from AllowedIPs that this node
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// is currently the primary subnet router for, as determined
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// by the control plane. It does not include the self address
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// values from Addresses that are in AllowedIPs.
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PrimaryRoutes []netaddr.IPPrefix `json:",omitempty"`
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// LastSeen is when the node was last online. It is not
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// updated when Online is true. It is nil if the current
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// node doesn't have permission to know, or the node
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// has never been online.
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LastSeen *time.Time `json:",omitempty"`
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// Online is whether the node is currently connected to the
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// coordination server. A value of nil means unknown, or the
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// current node doesn't have permission to know.
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Online *bool `json:",omitempty"`
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KeepAlive bool `json:",omitempty"` // open and keep open a connection to this peer
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MachineAuthorized bool `json:",omitempty"` // TODO(crawshaw): replace with MachineStatus
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// Capabilities are capabilities that the node has.
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// They're free-form strings, but should be in the form of URLs/URIs
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// such as:
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// "https://tailscale.com/cap/is-admin"
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// "https://tailscale.com/cap/file-sharing"
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Capabilities []string `json:",omitempty"`
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// The following three computed fields hold the various names that can
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// be used for this node in UIs. They are populated from controlclient
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// (not from control) by calling node.InitDisplayNames. These can be
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// used directly or accessed via node.DisplayName or node.DisplayNames.
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ComputedName string `json:",omitempty"` // MagicDNS base name (for normal non-shared-in nodes), FQDN (without trailing dot, for shared-in nodes), or Hostname (if no MagicDNS)
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computedHostIfDifferent string // hostname, if different than ComputedName, otherwise empty
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ComputedNameWithHost string `json:",omitempty"` // either "ComputedName" or "ComputedName (computedHostIfDifferent)", if computedHostIfDifferent is set
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}
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// DisplayName returns the user-facing name for a node which should
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// be shown in client UIs.
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//
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// Parameter forOwner specifies whether the name is requested by
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// the owner of the node. When forOwner is false, the hostname is
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// never included in the return value.
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//
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// Return value is either either "Name" or "Name (Hostname)", where
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// Name is the node's MagicDNS base name (for normal non-shared-in
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// nodes), FQDN (without trailing dot, for shared-in nodes), or
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// Hostname (if no MagicDNS). Hostname is only included in the
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// return value if it varies from Name and forOwner is provided true.
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//
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// DisplayName is only valid if InitDisplayNames has been called.
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func (n *Node) DisplayName(forOwner bool) string {
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if forOwner {
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return n.ComputedNameWithHost
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}
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return n.ComputedName
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}
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// DisplayName returns the decomposed user-facing name for a node.
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//
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// Parameter forOwner specifies whether the name is requested by
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// the owner of the node. When forOwner is false, hostIfDifferent
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// is always returned empty.
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//
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// Return value name is the node's primary name, populated with the
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// node's MagicDNS base name (for normal non-shared-in nodes), FQDN
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// (without trailing dot, for shared-in nodes), or Hostname (if no
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// MagicDNS).
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//
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// Return value hostIfDifferent, when non-empty, is the node's
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// hostname. hostIfDifferent is only populated when the hostname
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// varies from name and forOwner is provided as true.
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//
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// DisplayNames is only valid if InitDisplayNames has been called.
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func (n *Node) DisplayNames(forOwner bool) (name, hostIfDifferent string) {
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if forOwner {
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return n.ComputedName, n.computedHostIfDifferent
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}
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return n.ComputedName, ""
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}
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// InitDisplayNames computes and populates n's display name
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// fields: n.ComputedName, n.computedHostIfDifferent, and
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// n.ComputedNameWithHost.
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func (n *Node) InitDisplayNames(networkMagicDNSSuffix string) {
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name := dnsname.TrimSuffix(n.Name, networkMagicDNSSuffix)
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hostIfDifferent := dnsname.SanitizeHostname(n.Hostinfo.Hostname)
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if strings.EqualFold(name, hostIfDifferent) {
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hostIfDifferent = ""
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}
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if name == "" {
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if hostIfDifferent != "" {
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name = hostIfDifferent
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hostIfDifferent = ""
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} else {
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name = n.Key.String()
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}
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}
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var nameWithHost string
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if hostIfDifferent != "" {
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nameWithHost = fmt.Sprintf("%s (%s)", name, hostIfDifferent)
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} else {
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nameWithHost = name
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}
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n.ComputedName = name
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n.computedHostIfDifferent = hostIfDifferent
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n.ComputedNameWithHost = nameWithHost
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}
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type MachineStatus int
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const (
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MachineUnknown = MachineStatus(iota)
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MachineUnauthorized // server has yet to approve
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MachineAuthorized // server has approved
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MachineInvalid // server has explicitly rejected this machine key
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)
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func (m MachineStatus) MarshalText() ([]byte, error) {
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return []byte(m.String()), nil
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}
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func (m *MachineStatus) UnmarshalText(b []byte) error {
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switch string(b) {
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case "machine-unknown":
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*m = MachineUnknown
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case "machine-unauthorized":
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*m = MachineUnauthorized
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case "machine-authorized":
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*m = MachineAuthorized
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case "machine-invalid":
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*m = MachineInvalid
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default:
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var val int
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if _, err := fmt.Sscanf(string(b), "machine-unknown(%d)", &val); err != nil {
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*m = MachineStatus(val)
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} else {
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*m = MachineUnknown
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}
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}
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return nil
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}
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func (m MachineStatus) String() string {
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switch m {
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case MachineUnknown:
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return "machine-unknown"
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case MachineUnauthorized:
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return "machine-unauthorized"
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case MachineAuthorized:
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return "machine-authorized"
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case MachineInvalid:
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return "machine-invalid"
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default:
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return fmt.Sprintf("machine-unknown(%d)", int(m))
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}
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}
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func isNum(b byte) bool {
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return b >= '0' && b <= '9'
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}
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func isAlpha(b byte) bool {
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return (b >= 'A' && b <= 'Z') || (b >= 'a' && b <= 'z')
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}
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// CheckTag validates tag for use as an ACL tag.
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// For now we allow only ascii alphanumeric tags, and they need to start
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// with a letter. No unicode shenanigans allowed, and we reserve punctuation
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// marks other than '-' for a possible future URI scheme.
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//
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// Because we're ignoring unicode entirely, we can treat utf-8 as a series of
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// bytes. Anything >= 128 is disqualified anyway.
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//
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// We might relax these rules later.
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func CheckTag(tag string) error {
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if !strings.HasPrefix(tag, "tag:") {
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return errors.New("tags must start with 'tag:'")
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}
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tag = tag[4:]
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if tag == "" {
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return errors.New("tag names must not be empty")
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}
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if !isAlpha(tag[0]) {
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return errors.New("tag names must start with a letter, after 'tag:'")
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}
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for _, b := range []byte(tag) {
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if !isNum(b) && !isAlpha(b) && b != '-' {
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return errors.New("tag names can only contain numbers, letters, or dashes")
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}
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}
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return nil
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}
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// CheckRequestTags checks that all of h.RequestTags are valid.
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func (h *Hostinfo) CheckRequestTags() error {
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if h == nil {
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return nil
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}
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for _, tag := range h.RequestTags {
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if err := CheckTag(tag); err != nil {
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return fmt.Errorf("tag(%#v): %w", tag, err)
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}
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}
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return nil
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}
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type ServiceProto string
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const (
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TCP = ServiceProto("tcp")
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UDP = ServiceProto("udp")
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)
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type Service struct {
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_ structs.Incomparable
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Proto ServiceProto // TCP or UDP
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Port uint16 // port number service is listening on
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Description string `json:",omitempty"` // text description of service
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// TODO(apenwarr): allow advertising services on subnet IPs?
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// TODO(apenwarr): add "tags" here for each service?
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}
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// Hostinfo contains a summary of a Tailscale host.
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//
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// Because it contains pointers (slices), this type should not be used
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// as a value type.
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type Hostinfo struct {
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// TODO(crawshaw): mark all these fields ",omitempty" when all the
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// iOS apps are updated with the latest swift version of this struct.
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IPNVersion string `json:",omitempty"` // version of this code
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FrontendLogID string `json:",omitempty"` // logtail ID of frontend instance
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BackendLogID string `json:",omitempty"` // logtail ID of backend instance
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OS string // operating system the client runs on (a version.OS value)
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OSVersion string `json:",omitempty"` // operating system version, with optional distro prefix ("Debian 10.4", "Windows 10 Pro 10.0.19041")
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Package string `json:",omitempty"` // Tailscale package to disambiguate ("choco", "appstore", etc; "" for unknown)
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DeviceModel string `json:",omitempty"` // mobile phone model ("Pixel 3a", "iPhone12,3")
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Hostname string // name of the host the client runs on
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ShieldsUp bool `json:",omitempty"` // indicates whether the host is blocking incoming connections
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ShareeNode bool `json:",omitempty"` // indicates this node exists in netmap because it's owned by a shared-to user
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GoArch string `json:",omitempty"` // the host's GOARCH value (of the running binary)
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RoutableIPs []netaddr.IPPrefix `json:",omitempty"` // set of IP ranges this client can route
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RequestTags []string `json:",omitempty"` // set of ACL tags this node wants to claim
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Services []Service `json:",omitempty"` // services advertised by this machine
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NetInfo *NetInfo `json:",omitempty"`
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// NOTE: any new fields containing pointers in this type
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// require changes to Hostinfo.Equal.
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}
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// NetInfo contains information about the host's network state.
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type NetInfo struct {
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// MappingVariesByDestIP says whether the host's NAT mappings
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// vary based on the destination IP.
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MappingVariesByDestIP opt.Bool
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// HairPinning is their router does hairpinning.
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// It reports true even if there's no NAT involved.
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HairPinning opt.Bool
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// WorkingIPv6 is whether IPv6 works.
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WorkingIPv6 opt.Bool
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// WorkingUDP is whether UDP works.
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WorkingUDP opt.Bool
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// HavePortMap is whether we have an existing portmap open
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// (UPnP, PMP, or PCP).
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HavePortMap bool `json:",omitempty"`
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// UPnP is whether UPnP appears present on the LAN.
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// Empty means not checked.
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UPnP opt.Bool
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// PMP is whether NAT-PMP appears present on the LAN.
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// Empty means not checked.
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PMP opt.Bool
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// PCP is whether PCP appears present on the LAN.
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// Empty means not checked.
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PCP opt.Bool
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// PreferredDERP is this node's preferred DERP server
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// for incoming traffic. The node might be be temporarily
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// connected to multiple DERP servers (to send to other nodes)
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// but PreferredDERP is the instance number that the node
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// subscribes to traffic at.
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// Zero means disconnected or unknown.
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PreferredDERP int
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// LinkType is the current link type, if known.
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LinkType string `json:",omitempty"` // "wired", "wifi", "mobile" (LTE, 4G, 3G, etc)
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// DERPLatency is the fastest recent time to reach various
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// DERP STUN servers, in seconds. The map key is the
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// "regionID-v4" or "-v6"; it was previously the DERP server's
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// STUN host:port.
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//
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// This should only be updated rarely, or when there's a
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// material change, as any change here also gets uploaded to
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// the control plane.
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DERPLatency map[string]float64 `json:",omitempty"`
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// Update BasicallyEqual when adding fields.
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}
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func (ni *NetInfo) String() string {
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if ni == nil {
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return "NetInfo(nil)"
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}
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return fmt.Sprintf("NetInfo{varies=%v hairpin=%v ipv6=%v udp=%v derp=#%v portmap=%v link=%q}",
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ni.MappingVariesByDestIP, ni.HairPinning, ni.WorkingIPv6,
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ni.WorkingUDP, ni.PreferredDERP,
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ni.portMapSummary(),
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ni.LinkType)
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}
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|
|
|
func (ni *NetInfo) portMapSummary() string {
|
|
if !ni.HavePortMap && ni.UPnP == "" && ni.PMP == "" && ni.PCP == "" {
|
|
return "?"
|
|
}
|
|
var prefix string
|
|
if ni.HavePortMap {
|
|
prefix = "active-"
|
|
}
|
|
return prefix + conciseOptBool(ni.UPnP, "U") + conciseOptBool(ni.PMP, "M") + conciseOptBool(ni.PCP, "C")
|
|
}
|
|
|
|
func conciseOptBool(b opt.Bool, trueVal string) string {
|
|
if b == "" {
|
|
return "_"
|
|
}
|
|
v, ok := b.Get()
|
|
if !ok {
|
|
return "x"
|
|
}
|
|
if v {
|
|
return trueVal
|
|
}
|
|
return ""
|
|
}
|
|
|
|
// BasicallyEqual reports whether ni and ni2 are basically equal, ignoring
|
|
// changes in DERP ServerLatency & RegionLatency.
|
|
func (ni *NetInfo) BasicallyEqual(ni2 *NetInfo) bool {
|
|
if (ni == nil) != (ni2 == nil) {
|
|
return false
|
|
}
|
|
if ni == nil {
|
|
return true
|
|
}
|
|
return ni.MappingVariesByDestIP == ni2.MappingVariesByDestIP &&
|
|
ni.HairPinning == ni2.HairPinning &&
|
|
ni.WorkingIPv6 == ni2.WorkingIPv6 &&
|
|
ni.WorkingUDP == ni2.WorkingUDP &&
|
|
ni.HavePortMap == ni2.HavePortMap &&
|
|
ni.UPnP == ni2.UPnP &&
|
|
ni.PMP == ni2.PMP &&
|
|
ni.PCP == ni2.PCP &&
|
|
ni.PreferredDERP == ni2.PreferredDERP &&
|
|
ni.LinkType == ni2.LinkType
|
|
}
|
|
|
|
// Equal reports whether h and h2 are equal.
|
|
func (h *Hostinfo) Equal(h2 *Hostinfo) bool {
|
|
if h == nil && h2 == nil {
|
|
return true
|
|
}
|
|
if (h == nil) != (h2 == nil) {
|
|
return false
|
|
}
|
|
return reflect.DeepEqual(h, h2)
|
|
}
|
|
|
|
// SignatureType specifies a scheme for signing RegisterRequest messages. It
|
|
// specifies the crypto algorithms to use, the contents of what is signed, and
|
|
// any other relevant details. Historically, requests were unsigned so the zero
|
|
// value is SignatureNone.
|
|
type SignatureType int
|
|
|
|
const (
|
|
// SignatureNone indicates that there is no signature, no Timestamp is
|
|
// required (but may be specified if desired), and both DeviceCert and
|
|
// Signature should be empty.
|
|
SignatureNone = SignatureType(iota)
|
|
// SignatureUnknown represents an unknown signature scheme, which should
|
|
// be considered an error if seen.
|
|
SignatureUnknown
|
|
// SignatureV1 is computed as RSA-PSS-Sign(privateKeyForDeviceCert,
|
|
// SHA256(Timestamp || ServerIdentity || DeviceCert || ServerShortPubKey ||
|
|
// MachineShortPubKey)). The PSS salt length is equal to hash length
|
|
// (rsa.PSSSaltLengthEqualsHash). Device cert is required.
|
|
// Deprecated: uses old key serialization format.
|
|
SignatureV1
|
|
// SignatureV2 is computed as RSA-PSS-Sign(privateKeyForDeviceCert,
|
|
// SHA256(Timestamp || ServerIdentity || DeviceCert || ServerPubKey ||
|
|
// MachinePubKey)). The PSS salt length is equal to hash length
|
|
// (rsa.PSSSaltLengthEqualsHash). Device cert is required.
|
|
SignatureV2
|
|
)
|
|
|
|
func (st SignatureType) MarshalText() ([]byte, error) {
|
|
return []byte(st.String()), nil
|
|
}
|
|
|
|
func (st *SignatureType) UnmarshalText(b []byte) error {
|
|
switch string(b) {
|
|
case "signature-none":
|
|
*st = SignatureNone
|
|
case "signature-v1":
|
|
*st = SignatureV1
|
|
case "signature-v2":
|
|
*st = SignatureV2
|
|
default:
|
|
var val int
|
|
if _, err := fmt.Sscanf(string(b), "signature-unknown(%d)", &val); err != nil {
|
|
*st = SignatureType(val)
|
|
} else {
|
|
*st = SignatureUnknown
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (st SignatureType) String() string {
|
|
switch st {
|
|
case SignatureNone:
|
|
return "signature-none"
|
|
case SignatureUnknown:
|
|
return "signature-unknown"
|
|
case SignatureV1:
|
|
return "signature-v1"
|
|
case SignatureV2:
|
|
return "signature-v2"
|
|
default:
|
|
return fmt.Sprintf("signature-unknown(%d)", int(st))
|
|
}
|
|
}
|
|
|
|
// RegisterRequest is sent by a client to register the key for a node.
|
|
// It is encoded to JSON, encrypted with golang.org/x/crypto/nacl/box,
|
|
// using the local machine key, and sent to:
|
|
// https://login.tailscale.com/machine/<mkey hex>
|
|
type RegisterRequest struct {
|
|
_ structs.Incomparable
|
|
Version int // currently 1
|
|
NodeKey NodeKey
|
|
OldNodeKey NodeKey
|
|
Auth struct {
|
|
_ structs.Incomparable
|
|
// One of Provider/LoginName, Oauth2Token, or AuthKey is set.
|
|
Provider, LoginName string
|
|
Oauth2Token *Oauth2Token
|
|
AuthKey string
|
|
}
|
|
// Expiry optionally specifies the requested key expiry.
|
|
// The server policy may override.
|
|
// As a special case, if Expiry is in the past and NodeKey is
|
|
// the node's current key, the key is expired.
|
|
Expiry time.Time
|
|
Followup string // response waits until AuthURL is visited
|
|
Hostinfo *Hostinfo
|
|
|
|
// The following fields are not used for SignatureNone and are required for
|
|
// SignatureV1:
|
|
SignatureType SignatureType `json:",omitempty"`
|
|
Timestamp *time.Time `json:",omitempty"` // creation time of request to prevent replay
|
|
DeviceCert []byte `json:",omitempty"` // X.509 certificate for client device
|
|
Signature []byte `json:",omitempty"` // as described by SignatureType
|
|
}
|
|
|
|
// Clone makes a deep copy of RegisterRequest.
|
|
// The result aliases no memory with the original.
|
|
//
|
|
// TODO: extend cmd/cloner to generate this method.
|
|
func (req *RegisterRequest) Clone() *RegisterRequest {
|
|
if req == nil {
|
|
return nil
|
|
}
|
|
res := new(RegisterRequest)
|
|
*res = *req
|
|
if res.Hostinfo != nil {
|
|
res.Hostinfo = res.Hostinfo.Clone()
|
|
}
|
|
if res.Auth.Oauth2Token != nil {
|
|
tok := *res.Auth.Oauth2Token
|
|
res.Auth.Oauth2Token = &tok
|
|
}
|
|
res.DeviceCert = append(res.DeviceCert[:0:0], res.DeviceCert...)
|
|
res.Signature = append(res.Signature[:0:0], res.Signature...)
|
|
return res
|
|
}
|
|
|
|
// RegisterResponse is returned by the server in response to a RegisterRequest.
|
|
type RegisterResponse struct {
|
|
User User
|
|
Login Login
|
|
NodeKeyExpired bool // if true, the NodeKey needs to be replaced
|
|
MachineAuthorized bool // TODO(crawshaw): move to using MachineStatus
|
|
AuthURL string // if set, authorization pending
|
|
}
|
|
|
|
// EndpointType distinguishes different sources of MapRequest.Endpoint values.
|
|
type EndpointType int
|
|
|
|
const (
|
|
EndpointUnknownType = EndpointType(0)
|
|
EndpointLocal = EndpointType(1)
|
|
EndpointSTUN = EndpointType(2)
|
|
EndpointPortmapped = EndpointType(3)
|
|
EndpointSTUN4LocalPort = EndpointType(4) // hard NAT: STUN'ed IPv4 address + local fixed port
|
|
)
|
|
|
|
func (et EndpointType) String() string {
|
|
switch et {
|
|
case EndpointUnknownType:
|
|
return "?"
|
|
case EndpointLocal:
|
|
return "local"
|
|
case EndpointSTUN:
|
|
return "stun"
|
|
case EndpointPortmapped:
|
|
return "portmap"
|
|
case EndpointSTUN4LocalPort:
|
|
return "stun4localport"
|
|
}
|
|
return "other"
|
|
}
|
|
|
|
// Endpoint is an endpoint IPPort and an associated type.
|
|
// It doesn't currently go over the wire as is but is instead
|
|
// broken up into two parallel slices in MapRequest, for compatibility
|
|
// reasons. But this type is used in the codebase.
|
|
type Endpoint struct {
|
|
Addr netaddr.IPPort
|
|
Type EndpointType
|
|
}
|
|
|
|
// MapRequest is sent by a client to start a long-poll network map updates.
|
|
// The request includes a copy of the client's current set of WireGuard
|
|
// endpoints and general host information.
|
|
//
|
|
// The request is encoded to JSON, encrypted with golang.org/x/crypto/nacl/box,
|
|
// using the local machine key, and sent to:
|
|
// https://login.tailscale.com/machine/<mkey hex>/map
|
|
type MapRequest struct {
|
|
// Version is incremented whenever the client code changes enough that
|
|
// we want to signal to the control server that we're capable of something
|
|
// different.
|
|
//
|
|
// For current values and history, see CurrentMapRequestVersion above.
|
|
Version int
|
|
|
|
Compress string // "zstd" or "" (no compression)
|
|
KeepAlive bool // whether server should send keep-alives back to us
|
|
NodeKey NodeKey
|
|
DiscoKey DiscoKey
|
|
IncludeIPv6 bool `json:",omitempty"` // include IPv6 endpoints in returned Node Endpoints (for Version 4 clients)
|
|
Stream bool // if true, multiple MapResponse objects are returned
|
|
Hostinfo *Hostinfo
|
|
|
|
// Endpoints are the client's magicsock UDP ip:port endpoints (IPv4 or IPv6).
|
|
Endpoints []string
|
|
// EndpointTypes are the types of the corresponding endpoints in Endpoints.
|
|
EndpointTypes []EndpointType `json:",omitempty"`
|
|
|
|
// ReadOnly is whether the client just wants to fetch the
|
|
// MapResponse, without updating their Endpoints. The
|
|
// Endpoints field will be ignored and LastSeen will not be
|
|
// updated and peers will not be notified of changes.
|
|
//
|
|
// The intended use is for clients to discover the DERP map at
|
|
// start-up before their first real endpoint update.
|
|
ReadOnly bool `json:",omitempty"`
|
|
|
|
// OmitPeers is whether the client is okay with the Peers list
|
|
// being omitted in the response. (For example, a client on
|
|
// start up using ReadOnly to get the DERP map.)
|
|
//
|
|
// If OmitPeers is true, Stream is false, and ReadOnly is false,
|
|
// then the server will let clients update their endpoints without
|
|
// breaking existing long-polling (Stream == true) connections.
|
|
OmitPeers bool `json:",omitempty"`
|
|
|
|
// DebugFlags is a list of strings specifying debugging and
|
|
// development features to enable in handling this map
|
|
// request. The values are deliberately unspecified, as they get
|
|
// added and removed all the time during development, and offer no
|
|
// compatibility promise. To roll out semantic changes, bump
|
|
// Version instead.
|
|
//
|
|
// Current DebugFlags values are:
|
|
// * "warn-ip-forwarding-off": client is trying to be a subnet
|
|
// router but their IP forwarding is broken.
|
|
// * "warn-router-unhealthy": client's Router implementation is
|
|
// having problems.
|
|
// * "v6-overlay": IPv6 development flag to have control send
|
|
// v6 node addrs
|
|
// * "minimize-netmap": have control minimize the netmap, removing
|
|
// peers that are unreachable per ACLS.
|
|
DebugFlags []string `json:",omitempty"`
|
|
}
|
|
|
|
// PortRange represents a range of UDP or TCP port numbers.
|
|
type PortRange struct {
|
|
First uint16
|
|
Last uint16
|
|
}
|
|
|
|
var PortRangeAny = PortRange{0, 65535}
|
|
|
|
// NetPortRange represents a range of ports that's allowed for one or more IPs.
|
|
type NetPortRange struct {
|
|
_ structs.Incomparable
|
|
IP string // IP, CIDR, Range, or "*" (same formats as FilterRule.SrcIPs)
|
|
Bits *int // deprecated; the old way to turn IP into a CIDR
|
|
Ports PortRange
|
|
}
|
|
|
|
// FilterRule represents one rule in a packet filter.
|
|
//
|
|
// A rule is logically a set of source CIDRs to match (described by
|
|
// SrcIPs and SrcBits), and a set of destination targets that are then
|
|
// allowed if a source IP is mathces of those CIDRs.
|
|
type FilterRule struct {
|
|
// SrcIPs are the source IPs/networks to match.
|
|
//
|
|
// It may take the following forms:
|
|
// * an IP address (IPv4 or IPv6)
|
|
// * the string "*" to match everything (both IPv4 & IPv6)
|
|
// * a CIDR (e.g. "192.168.0.0/16")
|
|
// * a range of two IPs, inclusive, separated by hyphen ("2eff::1-2eff::0800")
|
|
SrcIPs []string
|
|
|
|
// SrcBits is deprecated; it's the old way to specify a CIDR
|
|
// prior to MapRequest.Version 7. Its values correspond to the
|
|
// SrcIPs above.
|
|
//
|
|
// If an entry of SrcBits is present for the same index as a
|
|
// SrcIPs entry, it changes the SrcIP above to be a network
|
|
// with /n CIDR bits. If the slice is nil or insufficiently
|
|
// long, the default value (for an IPv4 address) for a
|
|
// position is 32, as if the SrcIPs above were a /32 mask. For
|
|
// a "*" SrcIPs value, the corresponding SrcBits value is
|
|
// ignored.
|
|
SrcBits []int `json:",omitempty"`
|
|
|
|
// DstPorts are the port ranges to allow once a source IP
|
|
// matches (is in the CIDR described by SrcIPs & SrcBits).
|
|
DstPorts []NetPortRange
|
|
|
|
// IPProto are the IP protocol numbers to match.
|
|
//
|
|
// As a special case, nil or empty means TCP, UDP, and ICMP.
|
|
//
|
|
// Numbers outside the uint8 range (below 0 or above 255) are
|
|
// reserved for Tailscale's use. Unknown ones are ignored.
|
|
//
|
|
// Depending on the IPProto values, DstPorts may or may not be
|
|
// used.
|
|
IPProto []int `json:",omitempty"`
|
|
}
|
|
|
|
var FilterAllowAll = []FilterRule{
|
|
{
|
|
SrcIPs: []string{"*"},
|
|
SrcBits: nil,
|
|
DstPorts: []NetPortRange{{
|
|
IP: "*",
|
|
Bits: nil,
|
|
Ports: PortRange{0, 65535},
|
|
}},
|
|
},
|
|
}
|
|
|
|
// DNSConfig is the DNS configuration.
|
|
type DNSConfig struct {
|
|
// Resolvers are the DNS resolvers to use, in order of preference.
|
|
Resolvers []dnstype.Resolver `json:",omitempty"`
|
|
|
|
// Routes maps DNS name suffixes to a set of DNS resolvers to
|
|
// use. It is used to implement "split DNS" and other advanced DNS
|
|
// routing overlays.
|
|
//
|
|
// Map keys are fully-qualified DNS name suffixes; they may
|
|
// optionally contain a trailing dot but no leading dot.
|
|
//
|
|
// If the value is an empty slice, that means the suffix should still
|
|
// be handled by Tailscale's built-in resolver (100.100.100.100), such
|
|
// as for the purpose of handling ExtraRecords.
|
|
Routes map[string][]dnstype.Resolver `json:",omitempty"`
|
|
|
|
// FallbackResolvers is like Resolvers, but is only used if a
|
|
// split DNS configuration is requested in a configuration that
|
|
// doesn't work yet without explicit default resolvers.
|
|
// https://github.com/tailscale/tailscale/issues/1743
|
|
FallbackResolvers []dnstype.Resolver `json:",omitempty"`
|
|
// Domains are the search domains to use.
|
|
// Search domains must be FQDNs, but *without* the trailing dot.
|
|
Domains []string `json:",omitempty"`
|
|
// Proxied turns on automatic resolution of hostnames for devices
|
|
// in the network map, aka MagicDNS.
|
|
// Despite the (legacy) name, does not necessarily cause request
|
|
// proxying to be enabled.
|
|
Proxied bool `json:",omitempty"`
|
|
|
|
// The following fields are only set and used by
|
|
// MapRequest.Version >=9 and <14.
|
|
|
|
// Nameservers are the IP addresses of the nameservers to use.
|
|
Nameservers []netaddr.IP `json:",omitempty"`
|
|
|
|
// PerDomain is not set by the control server, and does nothing.
|
|
PerDomain bool `json:",omitempty"`
|
|
|
|
// CertDomains are the set of DNS names for which the control
|
|
// plane server will assist with provisioning TLS
|
|
// certificates. See SetDNSRequest, which can be used to
|
|
// answer dns-01 ACME challenges for e.g. LetsEncrypt.
|
|
// These names are FQDNs without trailing periods, and without
|
|
// any "_acme-challenge." prefix.
|
|
CertDomains []string `json:",omitempty"`
|
|
|
|
// ExtraRecords contains extra DNS records to add to the
|
|
// MagicDNS config.
|
|
ExtraRecords []DNSRecord `json:",omitempty"`
|
|
}
|
|
|
|
// DNSRecord is an extra DNS record to add to MagicDNS.
|
|
type DNSRecord struct {
|
|
// Name is the fully qualified domain name of
|
|
// the record to add. The trailing dot is optional.
|
|
Name string
|
|
|
|
// Type is the DNS record type.
|
|
// Empty means A or AAAA, depending on value.
|
|
// Other values are currently ignored.
|
|
Type string `json:",omitempty"`
|
|
|
|
// Value is the IP address in string form.
|
|
// TODO(bradfitz): if we ever add support for record types
|
|
// with non-UTF8 binary data, add ValueBytes []byte that
|
|
// would take precedence.
|
|
Value string
|
|
}
|
|
|
|
// PingRequest with no IP and Types is a request to send an HTTP request to prove the
|
|
// long-polling client is still connected.
|
|
// PingRequest with Types and IP, will send a ping to the IP and send a
|
|
// POST request to the URL to prove that the ping succeeded.
|
|
type PingRequest struct {
|
|
// URL is the URL to send a HEAD request to.
|
|
// It will be a unique URL each time. No auth headers are necessary.
|
|
//
|
|
// If the client sees multiple PingRequests with the same URL,
|
|
// subsequent ones should be ignored.
|
|
// If Types and IP are defined, then URL is the URL to send a POST request to.
|
|
URL string
|
|
|
|
// Log is whether to log about this ping in the success case.
|
|
// For failure cases, the client will log regardless.
|
|
Log bool `json:",omitempty"`
|
|
|
|
// Types is the types of ping that is initiated. Can be TSMP, ICMP or disco.
|
|
// Types will be comma separated, such as TSMP,disco.
|
|
Types string
|
|
|
|
// IP is the ping target.
|
|
// It is used in TSMP pings, if IP is invalid or empty then do a HEAD request to the URL.
|
|
IP netaddr.IP
|
|
}
|
|
|
|
type MapResponse struct {
|
|
// KeepAlive, if set, represents an empty message just to keep
|
|
// the connection alive. When true, all other fields except
|
|
// PingRequestURL are ignored.
|
|
KeepAlive bool `json:",omitempty"`
|
|
|
|
// PingRequest, if non-empty, is a request to the client to
|
|
// prove it's still there by sending an HTTP request to the
|
|
// provided URL. No auth headers are necessary.
|
|
// PingRequest may be sent on any MapResponse (ones with
|
|
// KeepAlive true or false).
|
|
PingRequest *PingRequest `json:",omitempty"`
|
|
|
|
// Networking
|
|
|
|
// Node describes the node making the map request.
|
|
// Starting with MapRequest.Version 18, nil means unchanged.
|
|
Node *Node `json:",omitempty"`
|
|
|
|
// DERPMap describe the set of DERP servers available.
|
|
// A nil value means unchanged.
|
|
DERPMap *DERPMap `json:",omitempty"`
|
|
|
|
// Peers, if non-empty, is the complete list of peers.
|
|
// It will be set in the first MapResponse for a long-polled request/response.
|
|
// Subsequent responses will be delta-encoded if MapRequest.Version >= 5 and server
|
|
// chooses, in which case Peers will be nil or zero length.
|
|
// If Peers is non-empty, PeersChanged and PeersRemoved should
|
|
// be ignored (and should be empty).
|
|
// Peers is always returned sorted by Node.ID.
|
|
Peers []*Node `json:",omitempty"`
|
|
// PeersChanged are the Nodes (identified by their ID) that
|
|
// have changed or been added since the past update on the
|
|
// HTTP response. It's not used by the server if MapRequest.Version < 5.
|
|
// PeersChanged is always returned sorted by Node.ID.
|
|
PeersChanged []*Node `json:",omitempty"`
|
|
// PeersRemoved are the NodeIDs that are no longer in the peer list.
|
|
PeersRemoved []NodeID `json:",omitempty"`
|
|
|
|
// PeerSeenChange contains information on how to update peers' LastSeen
|
|
// times. If the value is false, the peer is gone. If the value is true,
|
|
// the LastSeen time is now. Absent means unchanged.
|
|
PeerSeenChange map[NodeID]bool `json:",omitempty"`
|
|
|
|
// OnlineChange changes the value of a Peer Node.Online value.
|
|
OnlineChange map[NodeID]bool `json:",omitempty"`
|
|
|
|
// DNS is the same as DNSConfig.Nameservers.
|
|
// Only populated if MapRequest.Version < 9.
|
|
DNS []netaddr.IP `json:",omitempty"`
|
|
|
|
// SearchPaths is the old way to specify DNS search domains.
|
|
// Only populated if MapRequest.Version < 9.
|
|
SearchPaths []string `json:",omitempty"`
|
|
|
|
// DNSConfig contains the DNS settings for the client to use.
|
|
// A nil value means no change from an earlier non-nil value.
|
|
DNSConfig *DNSConfig `json:",omitempty"`
|
|
|
|
// Domain is the name of the network that this node is
|
|
// in. It's either of the form "example.com" (for user
|
|
// foo@example.com, for multi-user networks) or
|
|
// "foo@gmail.com" (for siloed users on shared email
|
|
// providers). Its exact form should not be depended on; new
|
|
// forms are coming later.
|
|
// If empty, the value is unchanged.
|
|
Domain string `json:",omitempty"`
|
|
|
|
// CollectServices reports whether this node's Tailnet has
|
|
// requested that info about services be included in HostInfo.
|
|
// If unset, the most recent non-empty MapResponse value in
|
|
// the HTTP response stream is used.
|
|
CollectServices opt.Bool `json:",omitempty"`
|
|
|
|
// PacketFilter are the firewall rules.
|
|
//
|
|
// For MapRequest.Version >= 6, a nil value means the most
|
|
// previously streamed non-nil MapResponse.PacketFilter within
|
|
// the same HTTP response. A non-nil but empty list always means
|
|
// no PacketFilter (that is, to block everything).
|
|
PacketFilter []FilterRule `json:",omitempty"`
|
|
|
|
// UserProfiles are the user profiles of nodes in the network.
|
|
// As as of 1.1.541 (mapver 5), this contains new or updated
|
|
// user profiles only.
|
|
UserProfiles []UserProfile `json:",omitempty"`
|
|
|
|
// Health, if non-nil, sets the health state
|
|
// of the node from the control plane's perspective.
|
|
// A nil value means no change from the previous MapResponse.
|
|
// A non-nil 0-length slice restores the health to good (no known problems).
|
|
// A non-zero length slice are the list of problems that the control place
|
|
// sees.
|
|
Health []string `json:",omitempty"`
|
|
|
|
// Debug is normally nil, except for when the control server
|
|
// is setting debug settings on a node.
|
|
Debug *Debug `json:",omitempty"`
|
|
}
|
|
|
|
// Debug are instructions from the control server to the client
|
|
// to adjust debug settings.
|
|
type Debug struct {
|
|
// LogHeapPprof controls whether the client should log
|
|
// its heap pprof data. Each true value sent from the server
|
|
// means that client should do one more log.
|
|
LogHeapPprof bool `json:",omitempty"`
|
|
|
|
// LogHeapURL is the URL to POST its heap pprof to.
|
|
// Empty means to not log.
|
|
LogHeapURL string `json:",omitempty"`
|
|
|
|
// ForceBackgroundSTUN controls whether magicsock should
|
|
// always do its background STUN queries (see magicsock's
|
|
// periodicReSTUN), regardless of inactivity.
|
|
ForceBackgroundSTUN bool `json:",omitempty"`
|
|
|
|
// DERPRoute controls whether the DERP reverse path
|
|
// optimization (see Issue 150) should be enabled or
|
|
// disabled. The environment variable in magicsock is the
|
|
// highest priority (if set), then this (if set), then the
|
|
// binary default value.
|
|
DERPRoute opt.Bool `json:",omitempty"`
|
|
|
|
// TrimWGConfig controls whether Tailscale does lazy, on-demand
|
|
// wireguard configuration of peers.
|
|
TrimWGConfig opt.Bool `json:",omitempty"`
|
|
|
|
// DisableSubnetsIfPAC controls whether subnet routers should be
|
|
// disabled if WPAD is present on the network.
|
|
DisableSubnetsIfPAC opt.Bool `json:",omitempty"`
|
|
|
|
// GoroutineDumpURL, if non-empty, requests that the client do
|
|
// a one-time dump of its active goroutines to the given URL.
|
|
GoroutineDumpURL string `json:",omitempty"`
|
|
|
|
// SleepSeconds requests that the client sleep for the
|
|
// provided number of seconds.
|
|
// The client can (and should) limit the value (such as 5
|
|
// minutes).
|
|
SleepSeconds float64 `json:",omitempty"`
|
|
|
|
// RandomizeClientPort is whether magicsock should UDP bind to
|
|
// :0 to get a random local port, ignoring any configured
|
|
// fixed port.
|
|
RandomizeClientPort bool `json:",omitempty"`
|
|
|
|
/// DisableUPnP is whether the client will attempt to perform a UPnP portmapping.
|
|
// By default, we want to enable it to see if it works on more clients.
|
|
//
|
|
// If UPnP catastrophically fails for people, this should be set to True to kill
|
|
// new attempts at UPnP connections.
|
|
DisableUPnP opt.Bool `json:",omitempty"`
|
|
}
|
|
|
|
func appendKey(base []byte, prefix string, k [32]byte) []byte {
|
|
ret := append(base, make([]byte, len(prefix)+64)...)
|
|
buf := ret[len(base):]
|
|
copy(buf, prefix)
|
|
hex.Encode(buf[len(prefix):], k[:])
|
|
return ret
|
|
}
|
|
|
|
func keyMarshalText(prefix string, k [32]byte) []byte {
|
|
return appendKey(nil, prefix, k)
|
|
}
|
|
|
|
func keyUnmarshalText(dst []byte, prefix string, text []byte) error {
|
|
if len(text) < len(prefix) || string(text[:len(prefix)]) != prefix {
|
|
return fmt.Errorf("UnmarshalText: missing %q prefix", prefix)
|
|
}
|
|
pub, err := key.NewPublicFromHexMem(mem.B(text[len(prefix):]))
|
|
if err != nil {
|
|
return fmt.Errorf("UnmarshalText: after %q: %v", prefix, err)
|
|
}
|
|
copy(dst[:], pub[:])
|
|
return nil
|
|
}
|
|
|
|
func (k NodeKey) ShortString() string { return (key.Public(k)).ShortString() }
|
|
|
|
func (k NodeKey) String() string { return fmt.Sprintf("nodekey:%x", k[:]) }
|
|
func (k NodeKey) MarshalText() ([]byte, error) { return keyMarshalText("nodekey:", k), nil }
|
|
func (k *NodeKey) UnmarshalText(text []byte) error { return keyUnmarshalText(k[:], "nodekey:", text) }
|
|
|
|
// IsZero reports whether k is the zero value.
|
|
func (k NodeKey) IsZero() bool { return k == NodeKey{} }
|
|
|
|
func (k DiscoKey) String() string { return fmt.Sprintf("discokey:%x", k[:]) }
|
|
func (k DiscoKey) MarshalText() ([]byte, error) { return keyMarshalText("discokey:", k), nil }
|
|
func (k *DiscoKey) UnmarshalText(text []byte) error { return keyUnmarshalText(k[:], "discokey:", text) }
|
|
func (k DiscoKey) ShortString() string { return fmt.Sprintf("d:%x", k[:8]) }
|
|
func (k DiscoKey) AppendTo(b []byte) []byte { return appendKey(b, "discokey:", k) }
|
|
|
|
// IsZero reports whether k is the zero value.
|
|
func (k DiscoKey) IsZero() bool { return k == DiscoKey{} }
|
|
|
|
func (id ID) String() string { return fmt.Sprintf("id:%x", int64(id)) }
|
|
func (id UserID) String() string { return fmt.Sprintf("userid:%x", int64(id)) }
|
|
func (id LoginID) String() string { return fmt.Sprintf("loginid:%x", int64(id)) }
|
|
func (id NodeID) String() string { return fmt.Sprintf("nodeid:%x", int64(id)) }
|
|
|
|
// Equal reports whether n and n2 are equal.
|
|
func (n *Node) Equal(n2 *Node) bool {
|
|
if n == nil && n2 == nil {
|
|
return true
|
|
}
|
|
return n != nil && n2 != nil &&
|
|
n.ID == n2.ID &&
|
|
n.StableID == n2.StableID &&
|
|
n.Name == n2.Name &&
|
|
n.User == n2.User &&
|
|
n.Sharer == n2.Sharer &&
|
|
n.Key == n2.Key &&
|
|
n.KeyExpiry.Equal(n2.KeyExpiry) &&
|
|
n.Machine == n2.Machine &&
|
|
n.DiscoKey == n2.DiscoKey &&
|
|
eqBoolPtr(n.Online, n2.Online) &&
|
|
eqCIDRs(n.Addresses, n2.Addresses) &&
|
|
eqCIDRs(n.AllowedIPs, n2.AllowedIPs) &&
|
|
eqCIDRs(n.PrimaryRoutes, n2.PrimaryRoutes) &&
|
|
eqStrings(n.Endpoints, n2.Endpoints) &&
|
|
n.DERP == n2.DERP &&
|
|
n.Hostinfo.Equal(&n2.Hostinfo) &&
|
|
n.Created.Equal(n2.Created) &&
|
|
eqTimePtr(n.LastSeen, n2.LastSeen) &&
|
|
n.MachineAuthorized == n2.MachineAuthorized &&
|
|
eqStrings(n.Capabilities, n2.Capabilities) &&
|
|
n.ComputedName == n2.ComputedName &&
|
|
n.computedHostIfDifferent == n2.computedHostIfDifferent &&
|
|
n.ComputedNameWithHost == n2.ComputedNameWithHost
|
|
}
|
|
|
|
func eqBoolPtr(a, b *bool) bool {
|
|
if a == b { // covers nil
|
|
return true
|
|
}
|
|
if a == nil || b == nil {
|
|
return false
|
|
}
|
|
return *a == *b
|
|
|
|
}
|
|
|
|
func eqStrings(a, b []string) bool {
|
|
if len(a) != len(b) || ((a == nil) != (b == nil)) {
|
|
return false
|
|
}
|
|
for i, v := range a {
|
|
if v != b[i] {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func eqCIDRs(a, b []netaddr.IPPrefix) bool {
|
|
if len(a) != len(b) || ((a == nil) != (b == nil)) {
|
|
return false
|
|
}
|
|
for i, v := range a {
|
|
if v != b[i] {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
func eqTimePtr(a, b *time.Time) bool {
|
|
return ((a == nil) == (b == nil)) && (a == nil || a.Equal(*b))
|
|
}
|
|
|
|
// Oauth2Token is a copy of golang.org/x/oauth2.Token, to avoid the
|
|
// go.mod dependency on App Engine and grpc, which was causing problems.
|
|
// All we actually needed was this struct on the client side.
|
|
type Oauth2Token struct {
|
|
// AccessToken is the token that authorizes and authenticates
|
|
// the requests.
|
|
AccessToken string `json:"access_token"`
|
|
|
|
// TokenType is the type of token.
|
|
// The Type method returns either this or "Bearer", the default.
|
|
TokenType string `json:"token_type,omitempty"`
|
|
|
|
// RefreshToken is a token that's used by the application
|
|
// (as opposed to the user) to refresh the access token
|
|
// if it expires.
|
|
RefreshToken string `json:"refresh_token,omitempty"`
|
|
|
|
// Expiry is the optional expiration time of the access token.
|
|
//
|
|
// If zero, TokenSource implementations will reuse the same
|
|
// token forever and RefreshToken or equivalent
|
|
// mechanisms for that TokenSource will not be used.
|
|
Expiry time.Time `json:"expiry,omitempty"`
|
|
}
|
|
|
|
const (
|
|
CapabilityFileSharing = "https://tailscale.com/cap/file-sharing"
|
|
CapabilityAdmin = "https://tailscale.com/cap/is-admin"
|
|
)
|
|
|
|
// SetDNSRequest is a request to add a DNS record.
|
|
//
|
|
// This is used for ACME DNS-01 challenges (so people can use
|
|
// LetsEncrypt, etc).
|
|
//
|
|
// The request is encoded to JSON, encrypted with golang.org/x/crypto/nacl/box,
|
|
// using the local machine key, and sent to:
|
|
// https://login.tailscale.com/machine/<mkey hex>/set-dns
|
|
type SetDNSRequest struct {
|
|
// Version indicates what level of SetDNSRequest functionality
|
|
// the client understands. Currently this type only has
|
|
// one version; this field should always be 1 for now.
|
|
Version int
|
|
|
|
// NodeKey is the client's current node key.
|
|
NodeKey NodeKey
|
|
|
|
// Name is the domain name for which to create a record.
|
|
// For ACME DNS-01 challenges, it should be one of the domains
|
|
// in MapResponse.DNSConfig.CertDomains with the prefix
|
|
// "_acme-challenge.".
|
|
Name string
|
|
|
|
// Type is the DNS record type. For ACME DNS-01 challenges, it
|
|
// should be "TXT".
|
|
Type string
|
|
|
|
// Value is the value to add.
|
|
Value string
|
|
}
|