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| author | NeilBrown <neilb@suse.com> | 2018-12-03 11:30:30 +1100 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2018-12-19 13:52:45 -0500 |
| commit | 1de7eea92946d7b581a8cd26084410913c80e594 (patch) | |
| tree | 24f83b50f58976dbad4025bae814daebb6029657 /net/sunrpc/clnt.c | |
| parent | a68a72e135ef55bce136a0b604413fd6b0f6d3fc (diff) | |
| download | linux-1de7eea92946d7b581a8cd26084410913c80e594.tar.gz | |
SUNRPC: add side channel to use non-generic cred for rpc call.
The credential passed in rpc_message.rpc_cred is always a generic credential except in one instance. When gss_destroying_context() calls rpc_call_null(), it passes a specific credential that it needs to destroy. In this case the RPC acts *on* the credential rather than being authorized by it. This special case deserves explicit support and providing that will mean that rpc_message.rpc_cred is *always* generic, allowing some optimizations. So add "tk_op_cred" to rpc_task and "rpc_op_cred" to the setup data. Use this to pass the cred down from rpc_call_null(), and have rpcauth_bindcred() notice it and bind it in place. Credit to kernel test robot <fengguang.wu@intel.com> for finding a bug in earlier version of this patch. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/clnt.c')
| -rw-r--r-- | net/sunrpc/clnt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 26bea2301045..4cb697cfb377 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -2534,12 +2534,12 @@ struct rpc_task *rpc_call_null_helper(struct rpc_clnt *clnt, { struct rpc_message msg = { .rpc_proc = &rpcproc_null, - .rpc_cred = cred, }; struct rpc_task_setup task_setup_data = { .rpc_client = clnt, .rpc_xprt = xprt, .rpc_message = &msg, + .rpc_op_cred = cred, .callback_ops = (ops != NULL) ? ops : &rpc_default_ops, .callback_data = data, .flags = flags, |