-
Notifications
You must be signed in to change notification settings - Fork 2
/
main.go
140 lines (121 loc) · 3.23 KB
/
main.go
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
package main
import (
"encoding/json"
"flag"
"fmt"
"io"
"log"
"net/http"
"strings"
"time"
"golang.org/x/net/websocket"
)
var hda = flag.String("hda", "rootfs.ext2", "")
var bzimage = flag.String("bzimage", "bzImage", "")
var runas = flag.String("runas", "", "The user you want to run the qemu as (see iptables proxy tricks)")
var globalPool *vmPool
func main() {
fmt.Print(".")
flag.Parse()
http.HandleFunc("/stats", serverStats)
http.Handle("/serve", websocket.Handler(serveChallenge))
go http.ListenAndServe(":10000", nil)
ChallengeHandler := http.NewServeMux()
ChallengeHandler.HandleFunc("/", rootTestHandler)
go http.ListenAndServe(":9999", ChallengeHandler)
go listenForFTPConnections(":9995")
go listenForFTPDataConnections(":9993")
go listenForSMTPConnections(":9996")
// start := time.Now()
// produceVM()
// log.Printf("================ Booted in %s ======================", time.Since(start).String())
vP := startAndMaintainVMPool()
globalPool = vP
for {
time.Sleep(time.Second * 1)
log.Printf("[A: %d R: %d: P: %f PT: %f L: %f, B: %d]",
vP.Available, vP.Running, (float64(vP.Available) / float64(vP.Running)), getControlValue(vP.Available), vP.Load.Current, vP.SystemsBooting)
}
}
type statusEndpointResponse struct {
Running int
Available int
}
func serverStats(w http.ResponseWriter, r *http.Request) {
if globalPool == nil {
http.Error(w, "not ready", http.StatusInternalServerError)
return
}
sresp := statusEndpointResponse{
Available: globalPool.Available,
Running: globalPool.Running,
}
b, _ := json.Marshal(sresp)
w.Write(b)
}
func serveChallengeWithName(ws *websocket.Conn, ChallengeCode string) {
log.Printf("Grabbing VM")
vm := globalPool.Grab()
vm.TestAssigned = ChallengeCode
vm.Stdin.Write([]byte("\n\nroot\n\n\n"))
vm.StopReadingIntoArray = true
vm.Stdin.Write([]byte("\n\n"))
log.Printf("Disconnecting it from the array reader")
buf := make([]byte, 1024)
vm.Stdout.Read(buf)
failures := 0
backoff := 50
for {
vm.Stdin.Write([]byte("\n\n"))
buf := make([]byte, 1024)
n, _ := vm.Stdout.Read(buf)
sbuf := string(buf[:n])
tbuf := strings.Replace(strings.Replace(strings.Replace(sbuf, " ", "", -1), "\n", "", -1), "\r", "", -1)
if tbuf == "##" {
break
} else {
if strings.Contains(tbuf, "bnbloglogin") {
vm.Stdin.Write([]byte("\nroot\n\n\n"))
}
log.Printf("trying again '%s' / '%x'", tbuf, []byte(tbuf))
failures++
backoff += 50
}
if failures > 5 {
globalPool.lock.Lock()
vm.QEMU.Process.Kill()
vm.QEMU.Process.Wait()
globalPool.Running--
globalPool.lock.Unlock()
serveChallengeWithName(ws, ChallengeCode)
return
}
time.Sleep(time.Millisecond * time.Duration(backoff))
}
go func() {
r := <-vm.TestComplete
if r {
ws.Write([]byte("TEST_PASSED"))
}
ws.Close()
}()
go io.Copy(ws, vm.Stdout)
io.Copy(vm.Stdin, ws)
vm.QEMU.Process.Kill()
vm.QEMU.Process.Wait()
}
func serveChallenge(ws *websocket.Conn) {
Chal := make([]byte, 100)
n, err := ws.Read(Chal)
if err != nil {
return
}
SChal := string(Chal[:n])
SChal = strings.Trim(SChal, "\r\n\t ")
log.Printf("Challenge: %s", SChal)
if strings.ToUpper(SChal) != SChal {
log.Printf("Not fed with challenge name")
return
}
serveChallengeWithName(ws, SChal)
}