From: Matteo Croce <mcroce@redhat.com>
To: Paul Mackerras <paulus@samba.org>,
linux-ppp@vger.kernel.org, netdev@vger.kernel.org
Cc: David Miller <davem@davemloft.net>
Subject: [RFC net-next] ppp: allow usage in namespaces
Date: Mon, 09 Oct 2017 12:59:41 +0000 [thread overview]
Message-ID: <20171009125941.15452-1-mcroce@redhat.com> (raw)
Check for CAP_NET_ADMIN with ns_capable() instead of capable()
to allow usage of ppp in user namespace other than the init one.
Signed-off-by: Matteo Croce <mcroce@redhat.com>
---
drivers/net/ppp/ppp_generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index a404552555d4..be5634b4835b 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -389,7 +389,7 @@ static int ppp_open(struct inode *inode, struct file *file)
/*
* This could (should?) be enforced by the permissions on /dev/ppp.
*/
- if (!capable(CAP_NET_ADMIN))
+ if (!ns_capable(file->f_cred->user_ns, CAP_NET_ADMIN))
return -EPERM;
return 0;
}
--
2.13.6
reply other threads:[~2017-10-09 12:59 UTC|newest]
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