From 79caa5fad47c69874f9efc4ac3128cc3f6d36f6e Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trondmy@gmail.com>
Date: Wed, 24 Apr 2019 17:46:42 -0400
Subject: SUNRPC: Cache cred of process creating the rpc_client

When converting kuids to AUTH_UNIX creds, etc we will want to use the
same user namespace as the process that created the rpc client.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
 fs/lockd/host.c        | 1 +
 fs/lockd/mon.c         | 1 +
 fs/nfs/client.c        | 1 +
 fs/nfs/mount_clnt.c    | 2 ++
 fs/nfsd/nfs4callback.c | 1 +
 5 files changed, 6 insertions(+)

(limited to 'fs')

diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index f0b5c987d6ae..d46081123f7c 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -458,6 +458,7 @@ nlm_bind_host(struct nlm_host *host)
 			.authflavor	= RPC_AUTH_UNIX,
 			.flags		= (RPC_CLNT_CREATE_NOPING |
 					   RPC_CLNT_CREATE_AUTOBIND),
+			.cred		= current_cred(),
 		};
 
 		/*
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 654594ef4f94..1eabd91870e6 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -82,6 +82,7 @@ static struct rpc_clnt *nsm_create(struct net *net, const char *nodename)
 		.version		= NSM_VERSION,
 		.authflavor		= RPC_AUTH_NULL,
 		.flags			= RPC_CLNT_CREATE_NOPING,
+		.cred			= current_cred(),
 	};
 
 	return rpc_create(&args);
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index f74638c5e5b4..a843cf3f6340 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -500,6 +500,7 @@ int nfs_create_rpc_client(struct nfs_client *clp,
 		.program	= &nfs_program,
 		.version	= clp->rpc_ops->version,
 		.authflavor	= flavor,
+		.cred		= current_cred(),
 	};
 
 	if (test_bit(NFS_CS_DISCRTRY, &clp->cl_flags))
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index d979ff4fee7e..cb7c10e9721e 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -163,6 +163,7 @@ int nfs_mount(struct nfs_mount_request *info)
 		.program	= &mnt_program,
 		.version	= info->version,
 		.authflavor	= RPC_AUTH_UNIX,
+		.cred		= current_cred(),
 	};
 	struct rpc_clnt		*mnt_clnt;
 	int			status;
@@ -249,6 +250,7 @@ void nfs_umount(const struct nfs_mount_request *info)
 		.version	= info->version,
 		.authflavor	= RPC_AUTH_UNIX,
 		.flags		= RPC_CLNT_CREATE_NOPING,
+		.cred		= current_cred(),
 	};
 	struct rpc_message msg	= {
 		.rpc_argp	= info->dirpath,
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index f7494be8dbe2..3a10399a0ef1 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -868,6 +868,7 @@ static int setup_callback_client(struct nfs4_client *clp, struct nfs4_cb_conn *c
 		.program	= &cb_program,
 		.version	= 1,
 		.flags		= (RPC_CLNT_CREATE_NOPING | RPC_CLNT_CREATE_QUIET),
+		.cred		= current_cred(),
 	};
 	struct rpc_clnt *client;
 	const struct cred *cred;
-- 
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