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Improve Error Handling & Allow Multiple Interfaces

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This commit is contained in:
Alec Scott
2021-06-16 22:26:15 -07:00
parent 0c59a57fc0
commit 53768270bd
8 changed files with 73 additions and 19 deletions
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3
.gitignore vendored
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@@ -1 +1,2 @@
hyprspace
hyprspace
.DS_Store

1
cli/init.go
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@@ -55,6 +55,7 @@ func InitRun(r *cmd.Root, c *cmd.Sub) {
new := config.Config{
Interface: config.Interface{
Name: args.InterfaceName,
ListenPort: 8001,
Address: "10.1.1.1/24",
ID: host.ID().Pretty(),
PrivateKey: string(keyBytes),

11
cli/root.go
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@@ -9,6 +9,8 @@ import (
"github.com/DataDrake/cli-ng/v2/cmd"
)
var appVersion string = "develop"
//GlobalFlags contains the flags for commands.
type GlobalFlags struct {
Config string `short:"c" long:"config" desc:"Specify a custom config path."`
@@ -19,15 +21,18 @@ var Root *cmd.Root
func init() {
Root = &cmd.Root{
Name: "hyprspace",
Short: "Hyprspace Distributed Network",
Flags: &GlobalFlags{},
Name: "hyprspace",
Short: "Hyprspace Distributed Network",
Version: appVersion,
Flags: &GlobalFlags{},
}
cmd.Register(&cmd.Help)
cmd.Register(&Init)
cmd.Register(&Up)
cmd.Register(&Down)
cmd.Register(&Update)
cmd.Register(&cmd.Version)
}
func checkErr(err error) {

56
cli/up.go
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@@ -3,11 +3,14 @@ package cli
import (
"bufio"
"context"
"errors"
"fmt"
"io"
"log"
"net"
"os"
"os/signal"
"strconv"
"strings"
"syscall"
"time"
@@ -75,15 +78,18 @@ func UpRun(r *cmd.Root, c *cmd.Sub) {
if !flags.Foreground {
// Make results chan
out := make(chan bool)
out := make(chan error)
go createDaemon(out)
select {
case <-out:
case err = <-out:
case <-time.After(30 * time.Second):
}
checkErr(err)
fmt.Println("[+] Successfully Created Hyprspace Daemon")
if err != nil {
fmt.Println("[+] Failed to Create Hyprspace Daemon")
} else {
fmt.Println("[+] Successfully Created Hyprspace Daemon")
}
return
}
@@ -96,7 +102,9 @@ func UpRun(r *cmd.Root, c *cmd.Sub) {
fmt.Println("[+] Creating TUN Device")
// Create new TUN device
iface, err = tun.New(Global.Interface.Name)
checkErr(err)
if err != nil {
checkErr(errors.New("interface already in use"))
}
// Set TUN MTU
tun.SetMTU(Global.Interface.Name, 1420)
// Add Address to Interface
@@ -106,8 +114,35 @@ func UpRun(r *cmd.Root, c *cmd.Sub) {
ctx := context.Background()
fmt.Println("[+] Creating LibP2P Node")
// Check that the listener port is available.
var ln net.Listener
port := Global.Interface.ListenPort
if port != 8001 {
ln, err = net.Listen("tcp", ":"+strconv.Itoa(port))
if err != nil {
checkErr(errors.New("could not create node, listen port already in use by something else"))
}
} else {
for {
ln, err = net.Listen("tcp", ":"+strconv.Itoa(port))
if err == nil {
break
}
if port >= 65535 {
checkErr(errors.New("failed to find open port"))
}
port++
}
}
if ln != nil {
ln.Close()
}
// Create P2P Node
host, dht, err := p2p.CreateNode(ctx, Global.Interface.PrivateKey, streamHandler)
host, dht, err := p2p.CreateNode(ctx,
Global.Interface.PrivateKey,
port,
streamHandler)
checkErr(err)
// Setup Peer Table for Quick Packet --> Dest ID lookup
@@ -162,7 +197,7 @@ func UpRun(r *cmd.Root, c *cmd.Sub) {
}
}
func createDaemon(out chan<- bool) {
func createDaemon(out chan<- error) {
path, err := os.Executable()
checkErr(err)
// Create Pipe to monitor for daemon output.
@@ -173,7 +208,7 @@ func createDaemon(out chan<- bool) {
path,
append(os.Args, "--foreground"),
&os.ProcAttr{
Files: []*os.File{nil, w, nil},
Files: []*os.File{nil, w, w},
},
)
checkErr(err)
@@ -186,7 +221,10 @@ func createDaemon(out chan<- bool) {
fmt.Println(scanner.Text())
err = process.Release()
checkErr(err)
out <- true
if count < 4 {
out <- errors.New("failed to create daemon")
}
out <- nil
}
func streamHandler(stream network.Stream) {

2
cli/update.go
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@@ -14,8 +14,6 @@ import (
"github.com/tcnksm/go-latest"
)
var appVersion string
// Update checks for a new version of the Hyprspace program and updates itself
// if a newer version is found and the user agrees to update.
var Update = cmd.Sub{

13
config/config.go
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@@ -15,8 +15,9 @@ type Config struct {
// Interface defines all of the fields that a local node needs to know about itself!
type Interface struct {
Name string `yaml:"name"`
Address string `yaml:"address"`
ID string `yaml:"id"`
ListenPort int `yaml:"listen_port"`
Address string `yaml:"address"`
DiscoverKey string `yaml:"discover_key"`
PrivateKey string `yaml:"private_key"`
}
@@ -32,6 +33,16 @@ func Read(path string) (result Config, err error) {
if err != nil {
return
}
result = Config{
Interface: Interface{
Name: "hs0",
ListenPort: 8001,
Address: "10.1.1.1",
ID: "",
DiscoverKey: "",
PrivateKey: "",
},
}
err = yaml.Unmarshal(in, &result)
return
}

2
p2p/discover.go
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@@ -18,7 +18,7 @@ func Discover(ctx context.Context, h host.Host, dht *dht.IpfsDHT, rendezvous str
var routingDiscovery = discovery.NewRoutingDiscovery(dht)
discovery.Advertise(ctx, routingDiscovery, rendezvous)
ticker := time.NewTicker(time.Second * 1)
ticker := time.NewTicker(time.Second * 5)
defer ticker.Stop()
for {

4
p2p/node.go
View File

@@ -18,7 +18,7 @@ import (
const Protocol = "/hyprspace/0.0.1"
// CreateNode creates an internal Libp2p nodes and returns it and it's DHT Discovery service.
func CreateNode(ctx context.Context, inputKey string, handler network.StreamHandler) (node host.Host, dhtOut *dht.IpfsDHT, err error) {
func CreateNode(ctx context.Context, inputKey string, port int, handler network.StreamHandler) (node host.Host, dhtOut *dht.IpfsDHT, err error) {
// Unmarshal Private Key
privateKey, err := crypto.UnmarshalPrivateKey([]byte(inputKey))
if err != nil {
@@ -27,7 +27,7 @@ func CreateNode(ctx context.Context, inputKey string, handler network.StreamHand
// Create libp2p node
node, err = libp2p.New(ctx,
libp2p.ListenAddrStrings(fmt.Sprintf("/ip4/0.0.0.0/tcp/%d", 8001)),
libp2p.ListenAddrStrings(fmt.Sprintf("/ip4/0.0.0.0/tcp/%d", port)),
libp2p.Identity(privateKey),
)
if err != nil {