@ -8,15 +8,18 @@ package main // import "tailscale.com/cmd/tailscale"
import (
"context"
"flag"
"fmt"
"log"
"net"
"os"
"os/signal"
"strings"
"syscall"
"github.com/apenwarr/fixconsole"
"github.com/pborman/getopt/v2"
"github.com/peterbourgon/ff/v2/ffcli"
"github.com/tailscale/wireguard-go/wgcfg"
"tailscale.com/ipn"
"tailscale.com/logpolicy"
@ -52,45 +55,98 @@ func main() {
log . Printf ( "fixConsoleOutput: %v\n" , err )
}
socket := getopt . StringLong ( "socket" , 0 , "/run/tailscale/tailscaled.sock" , "path of tailscaled's unix socket" )
server := getopt . StringLong ( "server" , 's' , "https://login.tailscale.com" , "URL to tailcontrol server" )
nuroutes := getopt . BoolLong ( "no-single-routes" , 'N' , "disallow (non-subnet) routes to single nodes" )
routeall := getopt . BoolLong ( "remote-routes" , 'R' , "accept routes advertised by remote nodes" )
nopf := getopt . BoolLong ( "no-packet-filter" , 'F' , "disable packet filter" )
advroutes := getopt . ListLong ( "routes" , 'r' , "routes to advertise to other nodes (comma-separated, e.g. 10.0.0.0/8,192.168.1.0/24)" )
getopt . Parse ( )
// TODO(bradfitz): move this into a proper subcommand system when we have that.
if isSubcommand ( "netcheck" ) {
netcheckCmd ( )
return
upf := flag . NewFlagSet ( "up" , flag . ExitOnError )
upf . StringVar ( & upArgs . socket , "socket" , "/run/tailscale/tailscaled.sock" , "path to tailscaled's unix socket" )
upf . StringVar ( & upArgs . server , "login-server" , "https://login.tailscale.com" , "base URL of control server" )
upf . BoolVar ( & upArgs . acceptRoutes , "accept-routes" , false , "accept routes advertised by other Tailscale nodes" )
upf . BoolVar ( & upArgs . noSingleRoutes , "no-single-routes" , false , "don't install routes to single nodes" )
upf . BoolVar ( & upArgs . noPacketFilter , "no-packet-filter" , false , "disable packet filter" )
upf . StringVar ( & upArgs . advertiseRoutes , "advertise-routes" , "" , "routes to advertise to other nodes (comma-separated, e.g. 10.0.0.0/8,192.168.0.0/24)" )
upCmd := & ffcli . Command {
Name : "up" ,
ShortUsage : "up [flags]" ,
ShortHelp : "Connect to your Tailscale network" ,
LongHelp : strings . TrimSpace ( `
"tailscale up" connects this machine to your Tailscale network ,
triggering authentication if necessary .
The flags passed to this command set tailscaled options that are
specific to this machine , such as whether to advertise some routes to
other nodes in the Tailscale network . If you don ' t specify any flags ,
options are reset to their default .
` ) ,
FlagSet : upf ,
Exec : runUp ,
}
netcheckCmd := & ffcli . Command {
Name : "netcheck" ,
ShortUsage : "netcheck" ,
ShortHelp : "Print an analysis of local network conditions" ,
Exec : runNetcheck ,
}
rootCmd := & ffcli . Command {
Name : "tailscale" ,
ShortUsage : "tailscale subcommand [flags]" ,
ShortHelp : "The easiest, most secure way to use WireGuard." ,
LongHelp : strings . TrimSpace ( `
This CLI is still under active development . Commands and flags will
change in the future .
` ) ,
Subcommands : [ ] * ffcli . Command {
upCmd ,
netcheckCmd ,
} ,
Exec : func ( context . Context , [ ] string ) error { return flag . ErrHelp } ,
}
if err := rootCmd . ParseAndRun ( context . Background ( ) , os . Args [ 1 : ] ) ; err != nil && err != flag . ErrHelp {
log . Fatal ( err )
}
}
var upArgs = struct {
socket string
server string
acceptRoutes bool
noSingleRoutes bool
noPacketFilter bool
advertiseRoutes string
} { }
func runUp ( ctx context . Context , args [ ] string ) error {
pol := logpolicy . New ( "tailnode.log.tailscale.io" )
if len ( getopt . Args ( ) ) > 0 {
if len ( args ) > 0 {
log . Fatalf ( "too many non-flag arguments: %#v" , getopt . Args ( ) [ 0 ] )
}
defer pol . Close ( )
var adv [ ] wgcfg . CIDR
for _ , s := range * advroutes {
cidr , err := wgcfg . ParseCIDR ( s )
if err != nil {
log . Fatalf ( "%q is not a valid CIDR prefix: %v" , s , err )
if upArgs . advertiseRoutes != "" {
advroutes := strings . Split ( upArgs . advertiseRoutes , "," )
for _ , s := range advroutes {
cidr , err := wgcfg . ParseCIDR ( s )
if err != nil {
log . Fatalf ( "%q is not a valid CIDR prefix: %v" , s , err )
}
adv = append ( adv , * cidr )
}
adv = append ( adv , * cidr )
}
// TODO(apenwarr): fix different semantics between prefs and uflags
// TODO(apenwarr): allow setting/using CorpDNS
prefs := ipn . NewPrefs ( )
prefs . ControlURL = * server
prefs . ControlURL = upArgs . server
prefs . WantRunning = true
prefs . RouteAll = * routeall
prefs . AllowSingleHosts = ! * nuroutes
prefs . UsePacketFilter = ! * nopf
prefs . RouteAll = upArgs . acceptRoutes
prefs . AllowSingleHosts = ! pA rgs. noSingleR outes
prefs . UsePacketFilter = ! upArgs . noPacketFilter
prefs . AdvertiseRoutes = adv
c , err := safesocket . Connect ( * socket , 0 )
c , err := safesocket . Connect ( upArgs . socket , 0 )
if err != nil {
log . Fatalf ( "safesocket.Connect: %v\n" , err )
}
@ -98,7 +154,7 @@ func main() {
ipn . WriteMsg ( c , b )
}
ctx , cancel := context . WithCancel ( c on te xt. Background ( ) )
ctx , cancel := context . WithCancel ( c tx)
defer cancel ( )
go func ( ) {
@ -121,7 +177,7 @@ func main() {
case ipn . NeedsLogin :
bc . StartLoginInteractive ( )
case ipn . NeedsMachineAuth :
fmt . Fprintf ( os . Stderr , "\nTo authorize your machine, visit (as admin):\n\n\t%s/admin/machines\n\n" , * server )
fmt . Fprintf ( os . Stderr , "\nTo authorize your machine, visit (as admin):\n\n\t%s/admin/machines\n\n" , upArgs . server )
case ipn . Starting , ipn . Running :
// Done full authentication process
fmt . Fprintf ( os . Stderr , "\ntailscaled is authenticated, nothing more to do.\n\n" )
@ -142,4 +198,6 @@ func main() {
// Windows/Mac state is moved into backend.
bc . Start ( opts )
pump ( ctx , bc , c )
return nil
}
David Anderson
4 years ago
committed by