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login-validator: Append shadow to original challenge archive

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This commit is contained in:
nemunaire 2022-02-26 21:57:15 +01:00
commit 59abc217d1
4 changed files with 24 additions and 5 deletions
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8
pkg/login-validator/cmd/pxetpl.go
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@ -2,6 +2,7 @@ package main
import (
"crypto/hmac"
"crypto/md5"
"crypto/sha512"
"fmt"
"io/ioutil"
@ -27,6 +28,12 @@ func RegisterUserIP(ip net.IP, username string) error {
return registerUser(pxeUserTplPath, fmt.Sprintf("%02X%02X%02X%02X", ip.To4()[0], ip.To4()[1], ip.To4()[2], ip.To4()[3]), username, ip)
}
func initrd_name(remote string) string {
initrd := hmac.New(md5.New, []byte(loginSalt))
initrd.Write([]byte(remote))
return fmt.Sprintf("%x", initrd.Sum(nil))
}
func registerUser(tplPath string, filename string, username string, ip net.IP) error {
if pxeTplCnt, err := ioutil.ReadFile(path.Join(tftpDir, tplPath)); err != nil {
return err
@ -46,6 +53,7 @@ func registerUser(tplPath string, filename string, username string, ip net.IP) e
return err
} else if err := pxeTmpl.Execute(userfd, map[string]string{
"username": username,
"initrd": initrd_name(ip.String()),
"pkey": fmt.Sprintf("%x", pkey.Sum(nil)),
"ip": ip.String(),
}); err != nil {