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NFSv4.1: Ensure we use the correct credentials for session create/destroy

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2012-05-25 17:51:23 -04:00
parent ad24ecfbcd
commit 848f5bda54
3 changed files with 26 additions and 15 deletions
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4
fs/nfs/nfs4_fs.h
View file

@ -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);

27
fs/nfs/nfs4proc.c
View file

@ -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 @@ int nfs4_proc_create_session(struct nfs_client *clp)
* 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)

10
fs/nfs/nfs4state.c
View file

@ -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;
}