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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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14
include/linux/nfs_xdr.h
View File

@@ -270,7 +270,7 @@ struct nfs4_layoutget_res {
struct nfs4_layoutget {
struct nfs4_layoutget_args args;
struct nfs4_layoutget_res res;
struct rpc_cred *cred;
const struct cred *cred;
gfp_t gfp_flags;
};
@@ -309,7 +309,7 @@ struct nfs4_layoutcommit_data {
struct rpc_task task;
struct nfs_fattr fattr;
struct list_head lseg_list;
struct rpc_cred *cred;
const struct cred *cred;
struct inode *inode;
struct nfs4_layoutcommit_args args;
struct nfs4_layoutcommit_res res;
@@ -334,7 +334,7 @@ struct nfs4_layoutreturn_res {
struct nfs4_layoutreturn {
struct nfs4_layoutreturn_args args;
struct nfs4_layoutreturn_res res;
struct rpc_cred *cred;
const struct cred *cred;
struct nfs_client *clp;
struct inode *inode;
int rpc_status;
@@ -1469,7 +1469,7 @@ enum {
struct nfs_io_completion;
struct nfs_pgio_header {
struct inode *inode;
struct rpc_cred *cred;
const struct cred *cred;
struct list_head pages;
struct nfs_page *req;
struct nfs_writeverf verf; /* Used for writes */
@@ -1529,7 +1529,7 @@ struct nfs_commit_info {
struct nfs_commit_data {
struct rpc_task task;
struct inode *inode;
struct rpc_cred *cred;
const struct cred *cred;
struct nfs_fattr fattr;
struct nfs_writeverf verf;
struct list_head pages; /* Coalesced requests we wish to flush */
@@ -1560,7 +1560,7 @@ struct nfs_unlinkdata {
struct nfs_removeres res;
struct dentry *dentry;
wait_queue_head_t wq;
struct rpc_cred *cred;
const struct cred *cred;
struct nfs_fattr dir_attr;
long timeout;
};
@@ -1568,7 +1568,7 @@ struct nfs_unlinkdata {
struct nfs_renamedata {
struct nfs_renameargs args;
struct nfs_renameres res;
struct rpc_cred *cred;
const struct cred *cred;
struct inode *old_dir;
struct dentry *old_dentry;
struct nfs_fattr old_fattr;