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SUNRPC refactor rpcauth_checkverf error returns

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Most of the time an error from the credops crvalidate function means the
server has sent us a garbage verifier. The gss_validate function is the
exception where there is an -EACCES case if the user GSS_context on the client
has expired.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Andy Adamson 2013-08-14 11:59:17 -04:00 • committed by Trond Myklebust
parent dc24826bfc
commit 35fa5f7b35
4 changed files with 19 additions and 13 deletions
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4
net/sunrpc/auth_unix.c
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@ -192,13 +192,13 @@ unx_validate(struct rpc_task *task, __be32 *p)
flavor != RPC_AUTH_UNIX &&
flavor != RPC_AUTH_SHORT) {
printk("RPC: bad verf flavor: %u\n", flavor);
return NULL;
return ERR_PTR(-EIO);
}
size = ntohl(*p++);
if (size > RPC_MAX_AUTH_SIZE) {
printk("RPC: giant verf size: %u\n", size);
return NULL;
return ERR_PTR(-EIO);
}
task->tk_rqstp->rq_cred->cr_auth->au_rslack = (size >> 2) + 2;
p += (size >> 2);