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SUNRPC: Use struct xdr_stream when constructing RPC Call header

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Modernize and harden the code path that constructs each RPC Call
message.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever
2019-02-11 11:24:48 -05:00
committed by Anna Schumaker
parent fe9a270519
commit e8680a24a2
8 changed files with 265 additions and 180 deletions
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15
include/linux/sunrpc/auth.h
View File

@@ -131,11 +131,12 @@ struct rpc_credops {
void (*crdestroy)(struct rpc_cred *);
int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
__be32 * (*crmarshal)(struct rpc_task *, __be32 *);
int (*crmarshal)(struct rpc_task *task,
struct xdr_stream *xdr);
int (*crrefresh)(struct rpc_task *);
__be32 * (*crvalidate)(struct rpc_task *, __be32 *);
int (*crwrap_req)(struct rpc_task *, kxdreproc_t,
void *, __be32 *, void *);
int (*crwrap_req)(struct rpc_task *task,
struct xdr_stream *xdr);
int (*crunwrap_resp)(struct rpc_task *, kxdrdproc_t,
void *, __be32 *, void *);
int (*crkey_timeout)(struct rpc_cred *);
@@ -165,9 +166,13 @@ struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
void put_rpccred(struct rpc_cred *);
__be32 * rpcauth_marshcred(struct rpc_task *, __be32 *);
int rpcauth_marshcred(struct rpc_task *task,
struct xdr_stream *xdr);
__be32 * rpcauth_checkverf(struct rpc_task *, __be32 *);
int rpcauth_wrap_req(struct rpc_task *task, kxdreproc_t encode, void *rqstp, __be32 *data, void *obj);
int rpcauth_wrap_req_encode(struct rpc_task *task,
struct xdr_stream *xdr);
int rpcauth_wrap_req(struct rpc_task *task,
struct xdr_stream *xdr);
int rpcauth_unwrap_resp(struct rpc_task *task, kxdrdproc_t decode, void *rqstp, __be32 *data, void *obj);
bool rpcauth_xmit_need_reencode(struct rpc_task *task);
int rpcauth_refreshcred(struct rpc_task *);

6
include/linux/sunrpc/xdr.h
View File

@@ -87,6 +87,12 @@ xdr_buf_init(struct xdr_buf *buf, void *start, size_t len)
#define xdr_one cpu_to_be32(1)
#define xdr_two cpu_to_be32(2)
#define rpc_auth_null cpu_to_be32(RPC_AUTH_NULL)
#define rpc_auth_unix cpu_to_be32(RPC_AUTH_UNIX)
#define rpc_auth_gss cpu_to_be32(RPC_AUTH_GSS)
#define rpc_call cpu_to_be32(RPC_CALL)
#define rpc_success cpu_to_be32(RPC_SUCCESS)
#define rpc_prog_unavail cpu_to_be32(RPC_PROG_UNAVAIL)
#define rpc_prog_mismatch cpu_to_be32(RPC_PROG_MISMATCH)