1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*
This is the authfs daemon. It stores the user database and client
sessions, and it serves a 9P filesystem for managing them.
User data (usernames and password hashes) are stored on disk. Sessions
are stored in memory.
*/
package main
import (
"context"
"flag"
"log"
"net"
"os"
"github.com/docker-archive/go-p9p"
)
const (
defaultNetwork = "unix"
defaultAddress = "authfs.sock"
)
var (
network, address string
outlog = log.New(os.Stdout, "authfs [info]: ", log.LstdFlags)
errlog = log.New(os.Stderr, "authfs [error]: ", log.LstdFlags|log.Llongfile)
)
func main() {
flag.StringVar(&network, "net", defaultNetwork, "network transport protocol: {tcp, unix}")
flag.StringVar(&address, "addr", defaultAddress, "IP address or Unix socket path to listen on")
flag.Parse()
ln, err := net.Listen(network, address)
if err != nil {
errlog.Fatal(err)
}
defer logErr(ln.Close())
for {
if conn, err := ln.Accept(); err == nil {
outlog.Println("connected", conn.RemoteAddr())
go handle(conn)
} else {
errlog.Println(err)
}
}
}
func handle(conn net.Conn) {
defer logErr(conn.Close())
ctx := context.Background()
handler := p9p.Dispatch(NewSession())
if err := p9p.ServeConn(ctx, conn, handler); err != nil {
errlog.Printf("%v: %v\n", conn.RemoteAddr(), err)
}
}
func logErr(err error) {
if err != nil {
errlog.Println(err)
}
}
|