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author | NeilBrown <neilb@suse.com> | 2018-12-03 03:30:30 +0300 |
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committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2018-12-19 21:52:45 +0300 |
commit | 1de7eea92946d7b581a8cd26084410913c80e594 (patch) | |
tree | 24f83b50f58976dbad4025bae814daebb6029657 /net/sunrpc/auth_null.c | |
parent | a68a72e135ef55bce136a0b604413fd6b0f6d3fc (diff) | |
download | linux-1de7eea92946d7b581a8cd26084410913c80e594.tar.xz |
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/auth_null.c')
0 files changed, 0 insertions, 0 deletions