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SUNRPC: Move the bound cred to struct rpc_rqst

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This will allow us to save the original generic cred in rpc_message, so
that if we migrate from one server to another, we can generate a new bound
cred without having to punt back to the NFS layer.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2010-07-31 14:29:08 -04:00
parent 8572b8e2e3
commit a17c2153d2
12 changed files with 92 additions and 96 deletions
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91
net/sunrpc/clnt.c
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@@ -605,8 +605,8 @@ rpc_task_set_rpc_message(struct rpc_task *task, const struct rpc_message *msg)
task->tk_msg.rpc_proc = msg->rpc_proc;
task->tk_msg.rpc_argp = msg->rpc_argp;
task->tk_msg.rpc_resp = msg->rpc_resp;
/* Bind the user cred */
task->tk_status = rpcauth_bindcred(task, msg->rpc_cred, task->tk_flags);
if (msg->rpc_cred != NULL)
task->tk_msg.rpc_cred = get_rpccred(msg->rpc_cred);
}
}
@@ -909,11 +909,6 @@ call_reserve(struct rpc_task *task)
{
dprint_status(task);
if (!rpcauth_uptodatecred(task)) {
task->tk_action = call_refresh;
return;
}
task->tk_status = 0;
task->tk_action = call_reserveresult;
xprt_reserve(task);
@@ -977,7 +972,7 @@ call_reserveresult(struct rpc_task *task)
static void
call_allocate(struct rpc_task *task)
{
unsigned int slack = task->tk_msg.rpc_cred->cr_auth->au_cslack;
unsigned int slack = task->tk_client->cl_auth->au_cslack;
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = task->tk_xprt;
struct rpc_procinfo *proc = task->tk_msg.rpc_proc;
@@ -985,7 +980,7 @@ call_allocate(struct rpc_task *task)
dprint_status(task);
task->tk_status = 0;
task->tk_action = call_bind;
task->tk_action = call_refresh;
if (req->rq_buffer)
return;
@@ -1022,6 +1017,47 @@ call_allocate(struct rpc_task *task)
rpc_exit(task, -ERESTARTSYS);
}
/*
* 2a. Bind and/or refresh the credentials
*/
static void
call_refresh(struct rpc_task *task)
{
dprint_status(task);
task->tk_action = call_refreshresult;
task->tk_status = 0;
task->tk_client->cl_stats->rpcauthrefresh++;
rpcauth_refreshcred(task);
}
/*
* 2b. Process the results of a credential refresh
*/
static void
call_refreshresult(struct rpc_task *task)
{
int status = task->tk_status;
dprint_status(task);
task->tk_status = 0;
task->tk_action = call_bind;
if (status >= 0 && rpcauth_uptodatecred(task))
return;
switch (status) {
case -EACCES:
rpc_exit(task, -EACCES);
return;
case -ENOMEM:
rpc_exit(task, -ENOMEM);
return;
case -ETIMEDOUT:
rpc_delay(task, 3*HZ);
}
task->tk_action = call_refresh;
}
static inline int
rpc_task_need_encode(struct rpc_task *task)
{
@@ -1557,43 +1593,6 @@ out_retry:
}
}
/*
* 8. Refresh the credentials if rejected by the server
*/
static void
call_refresh(struct rpc_task *task)
{
dprint_status(task);
task->tk_action = call_refreshresult;
task->tk_status = 0;
task->tk_client->cl_stats->rpcauthrefresh++;
rpcauth_refreshcred(task);
}
/*
* 8a. Process the results of a credential refresh
*/
static void
call_refreshresult(struct rpc_task *task)
{
int status = task->tk_status;
dprint_status(task);
task->tk_status = 0;
task->tk_action = call_reserve;
if (status >= 0 && rpcauth_uptodatecred(task))
return;
if (status == -EACCES) {
rpc_exit(task, -EACCES);
return;
}
task->tk_action = call_refresh;
if (status != -ETIMEDOUT)
rpc_delay(task, 3*HZ);
}
static __be32 *
rpc_encode_header(struct rpc_task *task)
{