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checker: Add new firewall tests
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This commit is contained in:
nemunaire 2023-03-02 03:02:23 +01:00
commit 170bc9ae35
2 changed files with 79 additions and 28 deletions
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38
checker/checks.go
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@ -6,6 +6,7 @@ import (
"fmt"
"io/ioutil"
"log"
"math/rand"
"net"
"net/http"
"net/url"
@ -21,7 +22,8 @@ import (
type AdlinTest int
const (
HTTPonIP AdlinTest = iota
Firewalled AdlinTest = iota
HTTPonIP
HTTPonAssociatedDomain
HTTPSonAssociatedDomain
DNSDelegation
@ -44,6 +46,7 @@ const (
var CheckMap = map[int]map[AdlinTest]int{
2: map[AdlinTest]int{
Firewalled: 100,
HTTPonIP: 101,
HTTPonAssociatedDomain: 102,
HTTPSonAssociatedDomain: 103,
@ -53,7 +56,8 @@ var CheckMap = map[int]map[AdlinTest]int{
HTTPSSNI: 107,
DNSSEC: 110,
},
3: map[AdlinTest]int{
/*2: map[AdlinTest]int{
Firewalled: 200,
HTTPonIP: 201,
HTTPonAssociatedDomain: 202,
HTTPSonAssociatedDomain: 203,
@ -64,8 +68,8 @@ var CheckMap = map[int]map[AdlinTest]int{
MatrixSrv: 208,
MatrixClt: 209,
DNSSEC: 210,
},
4: map[AdlinTest]int{
},*/
3: map[AdlinTest]int{
PingResolver: 300,
HTTPonIP: 301,
DNSDelegation: 303,
@ -83,6 +87,15 @@ var CheckMap = map[int]map[AdlinTest]int{
},
}
func has_test(m map[AdlinTest]int, test AdlinTest) bool {
for k := range m {
if k == test {
return true
}
}
return false
}
// ICMP
func check_ping(ip string, cb func(pkt *ping.Packet)) (err error) {
@ -105,6 +118,23 @@ func check_ping(ip string, cb func(pkt *ping.Packet)) (err error) {
return
}
func check_firewall(network, ip string) error {
port := rand.Int31n(64500) + 1024
conn, err := net.DialTimeout(network, fmt.Sprintf("[%s]:%d", ip, port), 3*time.Second)
if err != nil {
if operr, ok := err.(*net.OpError); ok && operr.Timeout() {
// We expect a timeout here if the firewall is well setuped
return nil
}
return fmt.Errorf("Port %d is not filtered: %s", port, err.Error())
}
conn.Close()
return fmt.Errorf("Port %d is open", port)
}
// PORT 53
func get_GLUE(student *adlin.Student) (aaaa net.IP, err error) {