mirror of https://github.com/tailscale/tailscale/
cmd/tailscaled, wgengine, ipn: add /debug/ipn handler with world state
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>pull/231/head
Brad Fitzpatrick
5 years ago
committed by
Brad Fitzpatrick
parent
dbca186a64
commit
322499473e
@ -0,0 +1,172 @@
|
||||
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package ipnstate captures the entire state of the Tailscale network.
|
||||
//
|
||||
// It's a leaf package so ipn, wgengine, and magicsock can all depend on it.
|
||||
package ipnstate
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"log"
|
||||
"sort"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"tailscale.com/tailcfg"
|
||||
"tailscale.com/types/key"
|
||||
)
|
||||
|
||||
// Status represents the entire state of the IPN network.
|
||||
type Status struct {
|
||||
BackendState string
|
||||
Peer map[key.Public]*PeerStatus
|
||||
User map[tailcfg.UserID]tailcfg.UserProfile
|
||||
}
|
||||
|
||||
func (s *Status) Peers() []key.Public {
|
||||
kk := make([]key.Public, 0, len(s.Peer))
|
||||
for k := range s.Peer {
|
||||
kk = append(kk, k)
|
||||
}
|
||||
sort.Slice(kk, func(i, j int) bool { return bytes.Compare(kk[i][:], kk[j][:]) < 0 })
|
||||
return kk
|
||||
}
|
||||
|
||||
type PeerStatus struct {
|
||||
PublicKey key.Public
|
||||
HostName string // HostInfo's Hostname (not a DNS name or necessarily unique)
|
||||
OS string // HostInfo.OS
|
||||
UserID tailcfg.UserID
|
||||
|
||||
TailAddr string // Tailscale IP
|
||||
|
||||
// Endpoints:
|
||||
Addrs []string
|
||||
CurAddr string // one of Addrs, or unique if roaming
|
||||
|
||||
RxBytes int64
|
||||
TxBytes int64
|
||||
Created time.Time // time registered with tailcontrol
|
||||
LastSeen time.Time // last seen to tailcontrol
|
||||
LastHandshake time.Time // with local wireguard
|
||||
KeepAlive bool
|
||||
|
||||
// InNetworkMap means that this peer was seen in our latest network map.
|
||||
// In theory, all of InNetworkMap and InMagicSock and InEngine should all be true.
|
||||
InNetworkMap bool
|
||||
|
||||
// InMagicSock means that this peer is being tracked by magicsock.
|
||||
// In theory, all of InNetworkMap and InMagicSock and InEngine should all be true.
|
||||
InMagicSock bool
|
||||
|
||||
// InEngine means that this peer is tracked by the wireguard engine.
|
||||
// In theory, all of InNetworkMap and InMagicSock and InEngine should all be true.
|
||||
InEngine bool
|
||||
}
|
||||
|
||||
type StatusBuilder struct {
|
||||
mu sync.Mutex
|
||||
locked bool
|
||||
st Status
|
||||
}
|
||||
|
||||
func (sb *StatusBuilder) Status() *Status {
|
||||
sb.mu.Lock()
|
||||
defer sb.mu.Unlock()
|
||||
sb.locked = true
|
||||
return &sb.st
|
||||
}
|
||||
|
||||
// AddUser adds a user profile to the status.
|
||||
func (sb *StatusBuilder) AddUser(id tailcfg.UserID, up tailcfg.UserProfile) {
|
||||
sb.mu.Lock()
|
||||
defer sb.mu.Unlock()
|
||||
if sb.locked {
|
||||
log.Printf("[unexpected] ipnstate: AddUser after Locked")
|
||||
return
|
||||
}
|
||||
|
||||
if sb.st.User == nil {
|
||||
sb.st.User = make(map[tailcfg.UserID]tailcfg.UserProfile)
|
||||
}
|
||||
|
||||
sb.st.User[id] = up
|
||||
}
|
||||
|
||||
// AddPeer adds a peer node to the status.
|
||||
//
|
||||
// Its PeerStatus is mixed with any previous status already added.
|
||||
func (sb *StatusBuilder) AddPeer(peer key.Public, st *PeerStatus) {
|
||||
if st == nil {
|
||||
panic("nil PeerStatus")
|
||||
}
|
||||
|
||||
sb.mu.Lock()
|
||||
defer sb.mu.Unlock()
|
||||
if sb.locked {
|
||||
log.Printf("[unexpected] ipnstate: AddPeer after Locked")
|
||||
return
|
||||
}
|
||||
|
||||
if sb.st.Peer == nil {
|
||||
sb.st.Peer = make(map[key.Public]*PeerStatus)
|
||||
}
|
||||
e, ok := sb.st.Peer[peer]
|
||||
if !ok {
|
||||
sb.st.Peer[peer] = st
|
||||
st.PublicKey = peer
|
||||
return
|
||||
}
|
||||
|
||||
if v := st.HostName; v != "" {
|
||||
e.HostName = v
|
||||
}
|
||||
if v := st.UserID; v != 0 {
|
||||
e.UserID = v
|
||||
}
|
||||
if v := st.TailAddr; v != "" {
|
||||
e.TailAddr = v
|
||||
}
|
||||
if v := st.OS; v != "" {
|
||||
e.OS = st.OS
|
||||
}
|
||||
if v := st.Addrs; v != nil {
|
||||
e.Addrs = v
|
||||
}
|
||||
if v := st.CurAddr; v != "" {
|
||||
e.CurAddr = v
|
||||
}
|
||||
if v := st.RxBytes; v != 0 {
|
||||
e.RxBytes = v
|
||||
}
|
||||
if v := st.TxBytes; v != 0 {
|
||||
e.TxBytes = v
|
||||
}
|
||||
if v := st.LastHandshake; !v.IsZero() {
|
||||
e.LastHandshake = v
|
||||
}
|
||||
if v := st.Created; !v.IsZero() {
|
||||
e.Created = v
|
||||
}
|
||||
if v := st.LastSeen; !v.IsZero() {
|
||||
e.LastSeen = v
|
||||
}
|
||||
if st.InNetworkMap {
|
||||
e.InNetworkMap = true
|
||||
}
|
||||
if st.InMagicSock {
|
||||
e.InMagicSock = true
|
||||
}
|
||||
if st.InEngine {
|
||||
e.InEngine = true
|
||||
}
|
||||
if st.KeepAlive {
|
||||
e.KeepAlive = true
|
||||
}
|
||||
}
|
||||
|
||||
type StatusUpdater interface {
|
||||
UpdateStatus(*StatusBuilder)
|
||||
}
|
||||
Loading…
Reference in New Issue