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NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.

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SUNRPC has two sorts of credentials, both of which appear as
"struct rpc_cred".
There are "generic credentials" which are supplied by clients
such as NFS and passed in 'struct rpc_message' to indicate
which user should be used to authorize the request, and there
are low-level credentials such as AUTH_NULL, AUTH_UNIX, AUTH_GSS
which describe the credential to be sent over the wires.

This patch replaces all the generic credentials by 'struct cred'
pointers - the credential structure used throughout Linux.

For machine credentials, there is a special 'struct cred *' pointer
which is statically allocated and recognized where needed as
having a special meaning.  A look-up of a low-level cred will
map this to a machine credential.

Signed-off-by: NeilBrown <neilb@suse.com>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
NeilBrown
2018-12-03 11:30:31 +11:00
committed by Anna Schumaker
parent 684f39b4cf
commit a52458b48a
33 changed files with 261 additions and 343 deletions
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4
fs/nfs/nfs4client.c
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@@ -545,7 +545,7 @@ static int nfs4_match_client(struct nfs_client *pos, struct nfs_client *new,
*/
int nfs40_walk_client_list(struct nfs_client *new,
struct nfs_client **result,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs_net *nn = net_generic(new->cl_net, nfs_net_id);
struct nfs_client *pos, *prev = NULL;
@@ -711,7 +711,7 @@ out_err:
*/
int nfs41_walk_client_list(struct nfs_client *new,
struct nfs_client **result,
struct rpc_cred *cred)
const struct cred *cred)
{
struct nfs_net *nn = net_generic(new->cl_net, nfs_net_id);
struct nfs_client *pos, *prev = NULL;