From da0da5eccf5f20874111e0681b111704bf9a1c92 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Billeter?= <j@bitron.ch>
Date: Sat, 18 Aug 2018 09:29:43 +0200
Subject: [PATCH] pam_systemd: support use in PID namespaces

Pass 0 as leader PID to CreateSession to let logind use the PID from the
D-Bus credentials. This allows use of pam_systemd in PID namespaces.
---
 src/login/pam_systemd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/login/pam_systemd.c b/src/login/pam_systemd.c
index 9d42d1a3bd..8464df122c 100644
--- a/src/login/pam_systemd.c
+++ b/src/login/pam_systemd.c
@@ -487,7 +487,7 @@ _public_ PAM_EXTERN int pam_sm_open_session(
 
         r = sd_bus_message_append(m, "uusssssussbss",
                         (uint32_t) pw->pw_uid,
-                        (uint32_t) getpid_cached(),
+                        0,
                         service,
                         type,
                         class,