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Nama	Ukuran	Aksi
addr.h	4.94 MB	View DL Edit
auth.h	6.11 MB	View DL Edit
auth_gss.h	2.31 MB	View DL Edit
bc_xprt.h	2.78 MB	View DL Edit
cache.h	8.96 MB	View DL Edit
clnt.h	9.01 MB	View DL Edit
debug.h	2.76 MB	View DL Edit
gss_api.h	4.45 MB	View DL Edit
gss_asn1.h	3.11 MB	View DL Edit
gss_err.h	5.88 MB	View DL Edit
gss_krb5.h	6.32 MB	View DL Edit
metrics.h	3.68 MB	View DL Edit
msg_prot.h	6.21 MB	View DL Edit
rpc_pipe_fs.h	3.85 MB	View DL Edit
rpc_rdma.h	6.07 MB	View DL Edit
rpc_rdma_cid.h	622 B	View DL Edit
sched.h	9.91 MB	View DL Edit
stats.h	2 MB	View DL Edit
svc.h	18.39 MB	View DL Edit
svcauth.h	6.01 MB	View DL Edit
svcauth_gss.h	782 B	View DL Edit
svcsock.h	2.18 MB	View DL Edit
svc_rdma.h	7.63 MB	View DL Edit
svc_rdma_pcl.h	3.13 MB	View DL Edit
svc_xprt.h	7.33 MB	View DL Edit
timer.h	1.14 MB	View DL Edit
types.h	497 B	View DL Edit
xdr.h	22.31 MB	View DL Edit
xprt.h	16.56 MB	View DL Edit
xprtmultipath.h	2.41 MB	View DL Edit
xprtrdma.h	2.95 MB	View DL Edit
xprtsock.h	1.85 MB	View DL Edit

Edit file: /usr/src/kernels/5.14.0-427.31.1.el9_4.x86_64/include/linux/sunrpc/auth.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * linux/include/linux/sunrpc/auth.h
 *
 * Declarations for the RPC client authentication machinery.
 *
 * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
 */

#ifndef _LINUX_SUNRPC_AUTH_H
#define _LINUX_SUNRPC_AUTH_H

#include <linux/sunrpc/sched.h>
#include <linux/sunrpc/msg_prot.h>
#include <linux/sunrpc/xdr.h>

#include <linux/atomic.h>
#include <linux/rcupdate.h>
#include <linux/uidgid.h>
#include <linux/utsname.h>

/*
 * Maximum size of AUTH_NONE authentication information, in XDR words.
 */
#define NUL_CALLSLACK	(4)
#define NUL_REPLYSLACK	(2)

/*
 * Size of the nodename buffer. RFC1831 specifies a hard limit of 255 bytes,
 * but Linux hostnames are actually limited to __NEW_UTS_LEN bytes.
 */
#define UNX_MAXNODENAME	__NEW_UTS_LEN
#define UNX_CALLSLACK	(21 + XDR_QUADLEN(UNX_MAXNODENAME))
#define UNX_NGROUPS	16

struct rpcsec_gss_info;

struct auth_cred {
	const struct cred *cred;
	const char *principal;	/* If present, this is a machine credential */
};

/*
 * Client user credentials
 */
struct rpc_auth;
struct rpc_credops;
struct rpc_cred {
	struct hlist_node	cr_hash;	/* hash chain */
	struct list_head	cr_lru;		/* lru garbage collection */
	struct rcu_head		cr_rcu;
	struct rpc_auth *	cr_auth;
	const struct rpc_credops *cr_ops;
	unsigned long		cr_expire;	/* when to gc */
	unsigned long		cr_flags;	/* various flags */
	refcount_t		cr_count;	/* ref count */
	const struct cred	*cr_cred;

/* per-flavor data */
};
#define RPCAUTH_CRED_NEW	0
#define RPCAUTH_CRED_UPTODATE	1
#define RPCAUTH_CRED_HASHED	2
#define RPCAUTH_CRED_NEGATIVE	3

const struct cred *rpc_machine_cred(void);

/*
 * Client authentication handle
 */
struct rpc_cred_cache;
struct rpc_authops;
struct rpc_auth {
	unsigned int		au_cslack;	/* call cred size estimate */
	unsigned int		au_rslack;	/* reply cred size estimate */
	unsigned int		au_verfsize;	/* size of reply verifier */
	unsigned int		au_ralign;	/* words before UL header */

unsigned long		au_flags;
	const struct rpc_authops *au_ops;
	rpc_authflavor_t	au_flavor;	/* pseudoflavor (note may
						 * differ from the flavor in
						 * au_ops->au_flavor in gss
						 * case) */
	refcount_t		au_count;	/* Reference counter */

struct rpc_cred_cache *	au_credcache;
	/* per-flavor data */
};

/* rpc_auth au_flags */
#define RPCAUTH_AUTH_DATATOUCH		(1)
#define RPCAUTH_AUTH_UPDATE_SLACK	(2)

struct rpc_auth_create_args {
	rpc_authflavor_t pseudoflavor;
	const char *target_name;
};

/* Flags for rpcauth_lookupcred() */
#define RPCAUTH_LOOKUP_NEW		0x01	/* Accept an uninitialised cred */
#define RPCAUTH_LOOKUP_ASYNC		0x02	/* Don't block waiting for memory */

/*
 * Client authentication ops
 */
struct rpc_authops {
	struct module		*owner;
	rpc_authflavor_t	au_flavor;	/* flavor (RPC_AUTH_*) */
	char *			au_name;
	struct rpc_auth *	(*create)(const struct rpc_auth_create_args *,
					  struct rpc_clnt *);
	void			(*destroy)(struct rpc_auth *);

int			(*hash_cred)(struct auth_cred *, unsigned int);
	struct rpc_cred *	(*lookup_cred)(struct rpc_auth *, struct auth_cred *, int);
	struct rpc_cred *	(*crcreate)(struct rpc_auth*, struct auth_cred *, int, gfp_t);
	rpc_authflavor_t	(*info2flavor)(struct rpcsec_gss_info *);
	int			(*flavor2info)(rpc_authflavor_t,
						struct rpcsec_gss_info *);
	int			(*key_timeout)(struct rpc_auth *,
						struct rpc_cred *);
	int			(*ping)(struct rpc_clnt *clnt);
};

struct rpc_credops {
	const char *		cr_name;	/* Name of the auth flavour */
	int			(*cr_init)(struct rpc_auth *, struct rpc_cred *);
	void			(*crdestroy)(struct rpc_cred *);

int			(*crmatch)(struct auth_cred *, struct rpc_cred *, int);
	int			(*crmarshal)(struct rpc_task *task,
					     struct xdr_stream *xdr);
	int			(*crrefresh)(struct rpc_task *);
	int			(*crvalidate)(struct rpc_task *task,
					      struct xdr_stream *xdr);
	int			(*crwrap_req)(struct rpc_task *task,
					      struct xdr_stream *xdr);
	int			(*crunwrap_resp)(struct rpc_task *task,
						 struct xdr_stream *xdr);
	int			(*crkey_timeout)(struct rpc_cred *);
	char *			(*crstringify_acceptor)(struct rpc_cred *);
	bool			(*crneed_reencode)(struct rpc_task *);
};

extern const struct rpc_authops	authunix_ops;
extern const struct rpc_authops	authnull_ops;
extern const struct rpc_authops	authtls_ops;

int __init		rpc_init_authunix(void);
int __init		rpcauth_init_module(void);
void			rpcauth_remove_module(void);
void 			rpc_destroy_authunix(void);

int			rpcauth_register(const struct rpc_authops *);
int			rpcauth_unregister(const struct rpc_authops *);
struct rpc_auth *	rpcauth_create(const struct rpc_auth_create_args *,
				struct rpc_clnt *);
void			rpcauth_release(struct rpc_auth *);
rpc_authflavor_t	rpcauth_get_pseudoflavor(rpc_authflavor_t,
				struct rpcsec_gss_info *);
int			rpcauth_get_gssinfo(rpc_authflavor_t,
				struct rpcsec_gss_info *);
struct rpc_cred *	rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int, gfp_t);
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 *);
int			rpcauth_marshcred(struct rpc_task *task,
					  struct xdr_stream *xdr);
int			rpcauth_checkverf(struct rpc_task *task,
					  struct xdr_stream *xdr);
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_decode(struct rpc_task *task,
						   struct xdr_stream *xdr);
int			rpcauth_unwrap_resp(struct rpc_task *task,
					    struct xdr_stream *xdr);
bool			rpcauth_xmit_need_reencode(struct rpc_task *task);
int			rpcauth_refreshcred(struct rpc_task *);
void			rpcauth_invalcred(struct rpc_task *);
int			rpcauth_uptodatecred(struct rpc_task *);
int			rpcauth_init_credcache(struct rpc_auth *);
void			rpcauth_destroy_credcache(struct rpc_auth *);
void			rpcauth_clear_credcache(struct rpc_cred_cache *);
char *			rpcauth_stringify_acceptor(struct rpc_cred *);

static inline
struct rpc_cred *get_rpccred(struct rpc_cred *cred)
{
	if (cred != NULL && refcount_inc_not_zero(&cred->cr_count))
		return cred;
	return NULL;
}

#endif /* _LINUX_SUNRPC_AUTH_H */

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