From: David Herrmann <dh.herrmann@gmail.com>
Date: Sun, 18 Jan 2015 12:54:46 +0000 (+0100)
Subject: bus-proxy: fake all UIDs/GIDs, not just the real UID/GID
X-Git-Tag: v219~458
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=e23f4bb525991c5908be0d0e7f8374c964d9996c;hp=d340f82032e4eb538e7b79087d95d5af1ae3dd91;ds=sidebyside

bus-proxy: fake all UIDs/GIDs, not just the real UID/GID

Make sure we tell the kernel to fake all UIDs/GIDs. Otherwise, the remote
side has no chance of querying our effective UID (which is usually what
they're interested in).
---

diff --git a/src/bus-proxyd/proxy.c b/src/bus-proxyd/proxy.c
index f7daec68f..329188ecf 100644
--- a/src/bus-proxyd/proxy.c
+++ b/src/bus-proxyd/proxy.c
@@ -82,13 +82,13 @@ static int proxy_create_dest(Proxy *p, const char *dest, const char *local_sec,
                 b->fake_pids_valid = true;
 
                 b->fake_creds.uid = p->local_creds.uid;
-                b->fake_creds.euid = UID_INVALID;
-                b->fake_creds.suid = UID_INVALID;
-                b->fake_creds.fsuid = UID_INVALID;
+                b->fake_creds.euid = p->local_creds.uid;
+                b->fake_creds.suid = p->local_creds.uid;
+                b->fake_creds.fsuid = p->local_creds.uid;
                 b->fake_creds.gid = p->local_creds.gid;
-                b->fake_creds.egid = GID_INVALID;
-                b->fake_creds.sgid = GID_INVALID;
-                b->fake_creds.fsgid = GID_INVALID;
+                b->fake_creds.egid = p->local_creds.gid;
+                b->fake_creds.sgid = p->local_creds.gid;
+                b->fake_creds.fsgid = p->local_creds.gid;
                 b->fake_creds_valid = true;
         }