From 848f5bda54ef19435ff78f124082bf6eff2ab620 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 25 May 2012 17:51:23 -0400 Subject: NFSv4.1: Ensure we use the correct credentials for session create/destroy Signed-off-by: Trond Myklebust --- fs/nfs/nfs4_fs.h | 4 ++-- fs/nfs/nfs4proc.c | 27 +++++++++++++++++---------- fs/nfs/nfs4state.c | 10 +++++++--- 3 files changed, 26 insertions(+), 15 deletions(-) (limited to 'fs/nfs') diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 5fcb1ad65e5e..a5dbe62130f1 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -241,8 +241,8 @@ extern int nfs41_setup_sequence(struct nfs4_session *session, struct rpc_task *task); extern void nfs4_destroy_session(struct nfs4_session *session); extern struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp); -extern int nfs4_proc_create_session(struct nfs_client *); -extern int nfs4_proc_destroy_session(struct nfs4_session *); +extern int nfs4_proc_create_session(struct nfs_client *, struct rpc_cred *); +extern int nfs4_proc_destroy_session(struct nfs4_session *, struct rpc_cred *); extern int nfs4_init_session(struct nfs_server *server); extern int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index f8817e81096e..8fa3a36df185 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5480,8 +5480,12 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp) void nfs4_destroy_session(struct nfs4_session *session) { struct rpc_xprt *xprt; + struct rpc_cred *cred; - nfs4_proc_destroy_session(session); + cred = nfs4_get_exchange_id_cred(session->clp); + nfs4_proc_destroy_session(session, cred); + if (cred) + put_rpccred(cred); rcu_read_lock(); xprt = rcu_dereference(session->clp->cl_rpcclient->cl_xprt); @@ -5591,7 +5595,8 @@ static int nfs4_verify_channel_attrs(struct nfs41_create_session_args *args, return nfs4_verify_back_channel_attrs(args, session); } -static int _nfs4_proc_create_session(struct nfs_client *clp) +static int _nfs4_proc_create_session(struct nfs_client *clp, + struct rpc_cred *cred) { struct nfs4_session *session = clp->cl_session; struct nfs41_create_session_args args = { @@ -5605,6 +5610,7 @@ static int _nfs4_proc_create_session(struct nfs_client *clp) .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE_SESSION], .rpc_argp = &args, .rpc_resp = &res, + .rpc_cred = cred, }; int status; @@ -5629,7 +5635,7 @@ static int _nfs4_proc_create_session(struct nfs_client *clp) * It is the responsibility of the caller to verify the session is * expired before calling this routine. */ -int nfs4_proc_create_session(struct nfs_client *clp) +int nfs4_proc_create_session(struct nfs_client *clp, struct rpc_cred *cred) { int status; unsigned *ptr; @@ -5637,7 +5643,7 @@ int nfs4_proc_create_session(struct nfs_client *clp) dprintk("--> %s clp=%p session=%p\n", __func__, clp, session); - status = _nfs4_proc_create_session(clp); + status = _nfs4_proc_create_session(clp, cred); if (status) goto out; @@ -5659,10 +5665,15 @@ out: * Issue the over-the-wire RPC DESTROY_SESSION. * The caller must serialize access to this routine. */ -int nfs4_proc_destroy_session(struct nfs4_session *session) +int nfs4_proc_destroy_session(struct nfs4_session *session, + struct rpc_cred *cred) { + struct rpc_message msg = { + .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_SESSION], + .rpc_argp = session, + .rpc_cred = cred, + }; int status = 0; - struct rpc_message msg; dprintk("--> nfs4_proc_destroy_session\n"); @@ -5670,10 +5681,6 @@ int nfs4_proc_destroy_session(struct nfs4_session *session) if (session->clp->cl_cons_state != NFS_CS_READY) return status; - msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DESTROY_SESSION]; - msg.rpc_argp = session; - msg.rpc_resp = NULL; - msg.rpc_cred = NULL; status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT); if (status) diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 419f8c44429e..15878404aa8c 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -256,7 +256,7 @@ int nfs41_init_clientid(struct nfs_client *clp, struct rpc_cred *cred) goto out; set_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state); do_confirm: - status = nfs4_proc_create_session(clp); + status = nfs4_proc_create_session(clp, cred); if (status != 0) goto out; clear_bit(NFS4CLNT_LEASE_CONFIRM, &clp->cl_state); @@ -1717,10 +1717,12 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags) static int nfs4_reset_session(struct nfs_client *clp) { + struct rpc_cred *cred; int status; nfs4_begin_drain_session(clp); - status = nfs4_proc_destroy_session(clp->cl_session); + cred = nfs4_get_exchange_id_cred(clp); + status = nfs4_proc_destroy_session(clp->cl_session, cred); if (status && status != -NFS4ERR_BADSESSION && status != -NFS4ERR_DEADSESSION) { status = nfs4_recovery_handle_error(clp, status); @@ -1728,7 +1730,7 @@ static int nfs4_reset_session(struct nfs_client *clp) } memset(clp->cl_session->sess_id.data, 0, NFS4_MAX_SESSIONID_LEN); - status = nfs4_proc_create_session(clp); + status = nfs4_proc_create_session(clp, cred); if (status) { status = nfs4_recovery_handle_error(clp, status); goto out; @@ -1742,6 +1744,8 @@ static int nfs4_reset_session(struct nfs_client *clp) if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) nfs41_setup_state_renewal(clp); out: + if (cred) + put_rpccred(cred); return status; } -- cgit