X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=src%2Fcypherpunks.ru%2Fgovpn%2Fclient%2Fclient.go;h=8102cc6cdf1430217a27052526496b8c8af446a4;hb=f47fff1e42f75b736e7067ec06c2e81394833d46;hp=ac54a860e127c7d558de5d8b5f0b9dc4730647f4;hpb=b69a57fb98ca6b03477487176021c2de053af5a7;p=govpn.git diff --git a/src/cypherpunks.ru/govpn/client/client.go b/src/cypherpunks.ru/govpn/client/client.go index ac54a86..8102cc6 100644 --- a/src/cypherpunks.ru/govpn/client/client.go +++ b/src/cypherpunks.ru/govpn/client/client.go @@ -1,17 +1,36 @@ +/* +GoVPN -- simple secure free software virtual private network daemon +Copyright (C) 2014-2017 Sergey Matveev + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . +*/ + package client import ( + "errors" "fmt" "net" "os" - "errors" "time" "github.com/agl/ed25519" + "cypherpunks.ru/govpn" ) -type Protocol uint8 +type Protocol int const ( ProtocolUDP Protocol = iota @@ -26,7 +45,8 @@ type Configuration struct { ProxyAddress string ProxyAuthentication string RemoteAddress string - UpPath, DownPath string + UpPath string + DownPath string StatsAddress string NoReconnect bool MTU int @@ -34,7 +54,7 @@ type Configuration struct { func (c *Configuration) Validate() error { if c.MTU > govpn.MTUMax { - return fmt.Errorf("Invalid MTU %d, maximum allowable is %d",c.MTU, govpn.MTUMax) + return fmt.Errorf("Invalid MTU %d, maximum allowable is %d", c.MTU, govpn.MTUMax) } if len(c.RemoteAddress) == 0 { return errors.New("Missing RemoteAddress") @@ -61,8 +81,8 @@ type Client struct { termSignal chan os.Signal config Configuration - // Error receive any error of all routines - Error chan error + // Error channel receives any kind of routine errors + Error chan error } func (c *Client) MainCycle() { @@ -83,7 +103,7 @@ func (c *Client) MainCycle() { go govpn.StatsProcessor(c.statsPort, &c.knownPeers) } - MainCycle: +MainCycle: for { c.timeouted = make(chan struct{}) c.rehandshaking = make(chan struct{}) @@ -102,14 +122,14 @@ func (c *Client) MainCycle() { case <-c.termSignal: govpn.BothPrintf(`[finish remote="%s"]`, c.config.RemoteAddress) c.termination <- struct{}{} - // send a non-error to let know everything went fine + // empty value signals that everything is fine c.Error <- nil break MainCycle case <-c.timeouted: if c.config.NoReconnect { break MainCycle } - govpn.BothPrintf(`[sleep seconds="%d"]`, c.config.Peer.Timeout) + govpn.BothPrintf(`[sleep seconds="%d"]`, c.config.Peer.Timeout/time.Second) time.Sleep(c.config.Peer.Timeout) case <-c.rehandshaking: } @@ -117,20 +137,24 @@ func (c *Client) MainCycle() { close(c.rehandshaking) close(c.termination) } - if _, err = govpn.ScriptCall(c.config.DownPath, c.config.InterfaceName, c.config.RemoteAddress); err != nil { + if _, err = govpn.ScriptCall( + c.config.DownPath, + c.config.InterfaceName, + c.config.RemoteAddress, + ); err != nil { c.Error <- err } } func NewClient(conf Configuration, verifier *govpn.Verifier, termSignal chan os.Signal) *Client { - client := &Client{ - idsCache: govpn.NewMACCache(), + client := Client{ + idsCache: govpn.NewMACCache(), firstUpCall: true, - config: conf, - termSignal: termSignal, - Error: make(chan error, 1), + config: conf, + termSignal: termSignal, + Error: make(chan error, 1), } - confs := map[govpn.PeerId]*govpn.PeerConf{*verifier.Id: conf.Peer} + confs := map[govpn.PeerID]*govpn.PeerConf{*verifier.ID: conf.Peer} client.idsCache.Update(&confs) - return client + return &client }