depend on pam-auth, use pam for root login

Please use username "root@pam" for login via GUI.

Cargo.toml

@@ -34,3 +34,5 @@ endian_trait = "0.6"
 walkdir = "2"
 md5 = "0.6"
 base64 = "0.10"
+pam-sys = "0.5"
+pam-auth = "0.5"

debian/control

@@ -2,7 +2,7 @@ Source: proxmox-backup
 Section: admin
 Priority: optional
 Maintainer: Proxmox Support Team <support@proxmox.com>
-Build-Depends: debhelper (>= 10),
+Build-Depends: debhelper (>= 10), libpam0g-dev
 Standards-Version: 3.9.5
 Homepage: https://www.proxmox.com
 

src/api2/access.rs

@@ -12,7 +12,10 @@ use serde_json::{json, Value};
 
 fn authenticate_user(username: &str, password: &str) -> Result<(), Error> {
 
-    if username == "root@pam" && password == "test" {
+    if username == "root@pam" {
+        let mut auth = pam_auth::Authenticator::new("common-auth").unwrap();
+        auth.set_credentials("root", password);
+        auth.authenticate()?;
         return Ok(());
     }