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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: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Trond Myklebust 2009-09-15 13:32:13 -04:00 committed by J. Bruce Fields
parent 886e3b7fe6
commit 5d351754fc
3 changed files with 16 additions and 12 deletions
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4
include/linux/sunrpc/auth.h
View File

@ -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 *);

20
net/sunrpc/auth.c
View File

@ -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

4
net/sunrpc/auth_generic.c
View File

@ -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