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Commit 5d351754 authored by Trond Myklebust's avatar Trond Myklebust Committed by J. Bruce Fields
Browse files

SUNRPC: Defer the auth_gss upcall when the RPC call is asynchronous 



Otherwise, the upcall is going to be synchronous, which may not be what the
caller wants...

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@citi.umich.edu>
parent 886e3b7f

include/linux/sunrpc/auth.h

+2 −2
Original line number Diff line number Diff line
@@ -111,7 +111,7 @@ struct rpc_credops { 
	void			(*crdestroy)(struct rpc_cred *);



	int			(*crmatch)(struct auth_cred *, struct rpc_cred *, int);

	void			(*crbind)(struct rpc_task *, struct rpc_cred *);

	void			(*crbind)(struct rpc_task *, struct rpc_cred *, int);

	__be32 *		(*crmarshal)(struct rpc_task *, __be32 *);

	int			(*crrefresh)(struct rpc_task *);

	__be32 *		(*crvalidate)(struct rpc_task *, __be32 *);
@@ -140,7 +140,7 @@ struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred * 
void			rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);

struct rpc_cred *	rpcauth_lookupcred(struct rpc_auth *, int);

void			rpcauth_bindcred(struct rpc_task *, struct rpc_cred *, int);

void			rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *);

void			rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);

void			put_rpccred(struct rpc_cred *);

void			rpcauth_unbindcred(struct rpc_task *);

__be32 *		rpcauth_marshcred(struct rpc_task *, __be32 *);

net/sunrpc/auth.c

+12 −8
Original line number Diff line number Diff line
@@ -385,7 +385,7 @@ rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred, 
EXPORT_SYMBOL_GPL(rpcauth_init_cred);



void

rpcauth_generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred)

rpcauth_generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred, int lookupflags)

{

	task->tk_msg.rpc_cred = get_rpccred(cred);

	dprintk("RPC: %5u holding %s cred %p\n", task->tk_pid,
@@ -394,7 +394,7 @@ rpcauth_generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred) 
EXPORT_SYMBOL_GPL(rpcauth_generic_bind_cred);



static void

rpcauth_bind_root_cred(struct rpc_task *task)

rpcauth_bind_root_cred(struct rpc_task *task, int lookupflags)

{

	struct rpc_auth *auth = task->tk_client->cl_auth;

	struct auth_cred acred = {
@@ -405,7 +405,7 @@ rpcauth_bind_root_cred(struct rpc_task *task) 


	dprintk("RPC: %5u looking up %s cred\n",

		task->tk_pid, task->tk_client->cl_auth->au_ops->au_name);

	ret = auth->au_ops->lookup_cred(auth, &acred, 0);

	ret = auth->au_ops->lookup_cred(auth, &acred, lookupflags);

	if (!IS_ERR(ret))

		task->tk_msg.rpc_cred = ret;

	else
@@ -413,14 +413,14 @@ rpcauth_bind_root_cred(struct rpc_task *task) 
}



static void

rpcauth_bind_new_cred(struct rpc_task *task)

rpcauth_bind_new_cred(struct rpc_task *task, int lookupflags)

{

	struct rpc_auth *auth = task->tk_client->cl_auth;

	struct rpc_cred *ret;



	dprintk("RPC: %5u looking up %s cred\n",

		task->tk_pid, auth->au_ops->au_name);

	ret = rpcauth_lookupcred(auth, 0);

	ret = rpcauth_lookupcred(auth, lookupflags);

	if (!IS_ERR(ret))

		task->tk_msg.rpc_cred = ret;

	else
@@ -430,12 +430,16 @@ rpcauth_bind_new_cred(struct rpc_task *task) 
void

rpcauth_bindcred(struct rpc_task *task, struct rpc_cred *cred, int flags)

{

	int lookupflags = 0;



	if (flags & RPC_TASK_ASYNC)

		lookupflags |= RPCAUTH_LOOKUP_NEW;

	if (cred != NULL)

		cred->cr_ops->crbind(task, cred);

		cred->cr_ops->crbind(task, cred, lookupflags);

	else if (flags & RPC_TASK_ROOTCREDS)

		rpcauth_bind_root_cred(task);

		rpcauth_bind_root_cred(task, lookupflags);

	else

		rpcauth_bind_new_cred(task);

		rpcauth_bind_new_cred(task, lookupflags);

}



void

net/sunrpc/auth_generic.c

+2 −2
Original line number Diff line number Diff line
@@ -55,13 +55,13 @@ struct rpc_cred *rpc_lookup_machine_cred(void) 
EXPORT_SYMBOL_GPL(rpc_lookup_machine_cred);



static void

generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred)

generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred, int lookupflags)

{

	struct rpc_auth *auth = task->tk_client->cl_auth;

	struct auth_cred *acred = &container_of(cred, struct generic_cred, gc_base)->acred;

	struct rpc_cred *ret;



	ret = auth->au_ops->lookup_cred(auth, acred, 0);

	ret = auth->au_ops->lookup_cred(auth, acred, lookupflags);

	if (!IS_ERR(ret))

		task->tk_msg.rpc_cred = ret;

	else