From 1e035d065f3415809c056fb7537320a74c718537 Mon Sep 17 00:00:00 2001
From: Frank Sorenson <sorenson@redhat.com>
Date: Thu, 29 Sep 2016 10:44:39 -0500
Subject: [PATCH] sunrpc: add auth_unix hash_cred() function
Add a hash_cred() function for auth_unix, using both the
uid and gid from the auth_cred.
Signed-off-by: Frank Sorenson <sorenson@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
net/sunrpc/auth_unix.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index a99278c984e82a..4c0c572af2da6f 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -46,6 +46,14 @@ unx_destroy(struct rpc_auth *auth)
rpcauth_clear_credcache(auth->au_credcache);
}
+static int
+unx_hash_cred(struct auth_cred *acred, unsigned int hashbits)
+{
+ return hash_64(from_kgid(&init_user_ns, acred->gid) |
+ ((u64)from_kuid(&init_user_ns, acred->uid) <<
+ (sizeof(gid_t) * 8)), hashbits);
+}
+
/*
* Lookup AUTH_UNIX creds for current process
*/
@@ -220,6 +228,7 @@ const struct rpc_authops authunix_ops = {
.au_name = "UNIX",
.create = unx_create,
.destroy = unx_destroy,
+ .hash_cred = unx_hash_cred,
.lookup_cred = unx_lookup_cred,
.crcreate = unx_create_cred,
};
--
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