From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 19 Apr 2020 22:06:51 +0000 (+0100)
Subject: jail: include /etc/nsswitch.conf in jail for glibc.
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=d200b70e5d5b0b3b61e2573f1c2fa22b3fa9d63a;p=oweals%2Fprocd.git

jail: include /etc/nsswitch.conf in jail for glibc.

/etc/nsswitch.conf is needed to resolve usernames and groups from
/etc/passwd and /etc/groups, name resoultion and a bunch of other
things when using glibc.
Mount /etc/nsswitch.conf in jail when building against glibc.

Reported-by: Tobias Waldvogel <tobias.waldvogel@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---

diff --git a/jail/jail.c b/jail/jail.c
index ca8b832..5a1c05b 100644
--- a/jail/jail.c
+++ b/jail/jail.c
@@ -790,6 +790,11 @@ int main(int argc, char **argv)
 				add_mount("/etc/group", 0, -1);
 			}
 
+#if defined(__GLIBC__)
+			if (!opts.extroot)
+				add_mount("/etc/nsswitch.conf", 0, -1);
+#endif
+
 			if (!(opts.namespace & CLONE_NEWNET)) {
 				add_mount("/etc/resolv.conf", 0, -1);
 			}