#include <linux/file.h>
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/swap.h>
#include <linux/pagemap.h>
#include <linux/ratelimit.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/clnt.h>
#include "xdr4.h"
#include "vfs.h"
#include "current_stateid.h"
#include "fault_inject.h"
#include "netns.h"

Macros
#define	NFSDDBG_FACILITY NFSDDBG_PROC

#define	all_ones {{~0,~0},~0}

#define	ZERO_STATEID(stateid) (!memcmp((stateid), &zero_stateid, sizeof(stateid_t)))

#define	ONE_STATEID(stateid) (!memcmp((stateid), &one_stateid, sizeof(stateid_t)))

#define	CURRENT_STATEID(stateid) (!memcmp((stateid), &currentstateid, sizeof(stateid_t)))

#define	OWNER_HASH_BITS 8

#define	OWNER_HASH_SIZE (1 << OWNER_HASH_BITS)

#define	OWNER_HASH_MASK (OWNER_HASH_SIZE - 1)

#define	FILE_HASH_BITS 8

#define	FILE_HASH_SIZE (1 << FILE_HASH_BITS)

#define	CLIENT_HASH_BITS 4

#define	CLIENT_HASH_SIZE (1 << CLIENT_HASH_BITS)

#define	CLIENT_HASH_MASK (CLIENT_HASH_SIZE - 1)

#define	SESSION_HASH_SIZE 512

#define	NFSD_MIN_HDR_SEQ_SZ (24 + 12 + 44)

#define	NFSD_MIN_REQ_HDR_SEQ_SZ

#define	NFSD_MIN_RESP_HDR_SEQ_SZ

#define	LOFF_OVERFLOW(start, len) ((u64)(len) > ~(u64)(start))

#define	LOCKOWNER_INO_HASH_BITS 8

#define	LOCKOWNER_INO_HASH_SIZE (1 << LOCKOWNER_INO_HASH_BITS)

#define	LOCKOWNER_INO_HASH_MASK (LOCKOWNER_INO_HASH_SIZE - 1)

Functions
void	nfs4_lock_state (void)

void	nfs4_unlock_state (void)

void	nfs4_put_delegation (struct nfs4_delegation *dp)

void	nfsd4_put_session (struct nfsd4_session *ses)

void	release_session_client (struct nfsd4_session *session)

void	nfsd4_store_cache_entry (struct nfsd4_compoundres *resp)

__be32	nfsd4_replay_cache_entry (struct nfsd4_compoundres resp, struct nfsd4_sequence seq)

__be32	nfsd4_exchange_id (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_exchange_id *exid)

__be32	nfsd4_create_session (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_create_session *cr_ses)

__be32	nfsd4_bind_conn_to_session (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_bind_conn_to_session *bcts)

__be32	nfsd4_destroy_session (struct svc_rqst r, struct nfsd4_compound_state cstate, struct nfsd4_destroy_session *sessionid)

__be32	nfsd4_sequence (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_sequence *seq)

__be32	nfsd4_destroy_clientid (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_destroy_clientid *dc)

__be32	nfsd4_reclaim_complete (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_reclaim_complete *rc)

__be32	nfsd4_setclientid (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_setclientid *setclid)

__be32	nfsd4_setclientid_confirm (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_setclientid_confirm *setclientid_confirm)

void	nfsd4_free_slabs (void)

int	nfsd4_init_slabs (void)

void	nfs4_free_openowner (struct nfs4_openowner *oo)

void	nfs4_free_lockowner (struct nfs4_lockowner *lo)

__be32	nfsd4_process_open1 (struct nfsd4_compound_state cstate, struct nfsd4_open open)

__be32	nfsd4_process_open2 (struct svc_rqst rqstp, struct svc_fh current_fh, struct nfsd4_open *open)

void	nfsd4_cleanup_open_state (struct nfsd4_open *open, __be32 status)

__be32	nfsd4_renew (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, clientid_t *clid)

__be32	nfs4_preprocess_stateid_op (struct net net, struct nfsd4_compound_state cstate, stateid_t stateid, int flags, struct file *filpp)

__be32	nfsd4_test_stateid (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_test_stateid *test_stateid)

__be32	nfsd4_free_stateid (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_free_stateid *free_stateid)

__be32	nfsd4_open_confirm (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_open_confirm *oc)

__be32	nfsd4_open_downgrade (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_open_downgrade *od)

void	nfsd4_purge_closed_stateid (struct nfs4_stateowner *so)

__be32	nfsd4_close (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_close *close)

__be32	nfsd4_delegreturn (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_delegreturn *dr)

__be32	nfsd4_lock (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_lock *lock)

__be32	nfsd4_lockt (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_lockt *lockt)

__be32	nfsd4_locku (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_locku *locku)

__be32	nfsd4_release_lockowner (struct svc_rqst rqstp, struct nfsd4_compound_state cstate, struct nfsd4_release_lockowner *rlockowner)

int	nfs4_has_reclaimed_state (const char *name, bool use_exchange_id)

int	nfs4_client_to_reclaim (const char *name)

void	nfs4_release_reclaim (void)

struct nfs4_client_reclaim *	nfsd4_find_reclaim_client (struct nfs4_client *clp)

__be32	nfs4_check_open_reclaim (clientid_t *clid, bool sessions)

void	nfs4_state_init (void)

int	nfs4_state_start (void)

void	nfs4_state_shutdown (void)

void	clear_current_stateid (struct nfsd4_compound_state *cstate)

void	nfsd4_set_opendowngradestateid (struct nfsd4_compound_state cstate, struct nfsd4_open_downgrade odp)

void	nfsd4_set_openstateid (struct nfsd4_compound_state cstate, struct nfsd4_open open)

void	nfsd4_set_closestateid (struct nfsd4_compound_state cstate, struct nfsd4_close close)

void	nfsd4_set_lockstateid (struct nfsd4_compound_state cstate, struct nfsd4_lock lock)

void	nfsd4_get_opendowngradestateid (struct nfsd4_compound_state cstate, struct nfsd4_open_downgrade odp)

void	nfsd4_get_delegreturnstateid (struct nfsd4_compound_state cstate, struct nfsd4_delegreturn drp)

void	nfsd4_get_freestateid (struct nfsd4_compound_state cstate, struct nfsd4_free_stateid fsp)

void	nfsd4_get_setattrstateid (struct nfsd4_compound_state cstate, struct nfsd4_setattr setattr)

void	nfsd4_get_closestateid (struct nfsd4_compound_state cstate, struct nfsd4_close close)

void	nfsd4_get_lockustateid (struct nfsd4_compound_state cstate, struct nfsd4_locku locku)

void	nfsd4_get_readstateid (struct nfsd4_compound_state cstate, struct nfsd4_read read)

void	nfsd4_get_writestateid (struct nfsd4_compound_state cstate, struct nfsd4_write write)

Variables
time_t	nfsd4_lease = 90

time_t	nfsd4_grace = 90

unsigned int	max_delegations

Macro Definition Documentation

#define all_ones {{~0,~0},~0}

Definition at line 57 of file nfs4state.c.

#define CLIENT_HASH_BITS 4

Definition at line 397 of file nfs4state.c.

#define CLIENT_HASH_MASK (CLIENT_HASH_SIZE - 1)

Definition at line 399 of file nfs4state.c.

#define CLIENT_HASH_SIZE (1 << CLIENT_HASH_BITS)

Definition at line 398 of file nfs4state.c.

#define CURRENT_STATEID ( stateid ) (!memcmp((stateid), &currentstateid, sizeof(stateid_t)))

Definition at line 73 of file nfs4state.c.

#define FILE_HASH_BITS 8

Definition at line 182 of file nfs4state.c.

#define FILE_HASH_SIZE (1 << FILE_HASH_BITS)

Definition at line 183 of file nfs4state.c.

#define LOCKOWNER_INO_HASH_BITS 8

Definition at line 3836 of file nfs4state.c.

#define LOCKOWNER_INO_HASH_MASK (LOCKOWNER_INO_HASH_SIZE - 1)

Definition at line 3838 of file nfs4state.c.

#define LOCKOWNER_INO_HASH_SIZE (1 << LOCKOWNER_INO_HASH_BITS)

Definition at line 3837 of file nfs4state.c.

#define LOFF_OVERFLOW	(	start,
		len
	)	((u64)(len) > ~(u64)(start))

Definition at line 3834 of file nfs4state.c.

#define NFSD_MIN_HDR_SEQ_SZ (24 + 12 + 44)

Definition at line 705 of file nfs4state.c.

#define NFSD_MIN_REQ_HDR_SEQ_SZ

Value:

((\
            2 * 2 + /* credential,verifier: AUTH_NULL, length 0 */ \
            1 + /* MIN tag is length with zero, only length */ \
            3 + /* version, opcount, opcode */ \
            XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
                /* seqid, slotID, slotID, cache */ \
            4 ) * sizeof(__be32))

Definition at line 1730 of file nfs4state.c.

#define NFSD_MIN_RESP_HDR_SEQ_SZ

Value:

((\
            2 + /* verifier: AUTH_NULL, length 0 */\
            1 + /* status */ \
            1 + /* MIN tag is length with zero, only length */ \
            3 + /* opcount, opcode, opstatus*/ \
            XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
                /* seqid, slotID, slotID, slotID, status */ \
            5 ) * sizeof(__be32))

Definition at line 1738 of file nfs4state.c.

#define NFSDDBG_FACILITY NFSDDBG_PROC

Definition at line 51 of file nfs4state.c.

#define ONE_STATEID ( stateid ) (!memcmp((stateid), &one_stateid, sizeof(stateid_t)))

Definition at line 72 of file nfs4state.c.

#define OWNER_HASH_BITS 8

Definition at line 166 of file nfs4state.c.

#define OWNER_HASH_MASK (OWNER_HASH_SIZE - 1)

Definition at line 168 of file nfs4state.c.

#define OWNER_HASH_SIZE (1 << OWNER_HASH_BITS)

Definition at line 167 of file nfs4state.c.

#define SESSION_HASH_SIZE 512

Definition at line 655 of file nfs4state.c.

#define ZERO_STATEID ( stateid ) (!memcmp((stateid), &zero_stateid, sizeof(stateid_t)))

Definition at line 71 of file nfs4state.c.

Function Documentation

void clear_current_stateid ( struct nfsd4_compound_state * cstate )

Definition at line 4846 of file nfs4state.c.

__be32 nfs4_check_open_reclaim	(	clientid_t *	clid,
		bool	sessions
	)

Definition at line 4546 of file nfs4state.c.

int nfs4_client_to_reclaim ( const char * name )

Definition at line 4485 of file nfs4state.c.

void nfs4_free_lockowner ( struct nfs4_lockowner * lo )

Definition at line 2371 of file nfs4state.c.

void nfs4_free_openowner ( struct nfs4_openowner * oo )

Definition at line 2365 of file nfs4state.c.

int nfs4_has_reclaimed_state	(	const char *	name,
		bool	use_exchange_id
	)

Definition at line 4470 of file nfs4state.c.

void nfs4_lock_state ( void )

Definition at line 97 of file nfs4state.c.

__be32 nfs4_preprocess_stateid_op	(	struct net *	net,
		struct nfsd4_compound_state *	cstate,
		stateid_t *	stateid,
		int	flags,
		struct file **	filpp
	)

Definition at line 3411 of file nfs4state.c.

void nfs4_put_delegation ( struct nfs4_delegation * dp )

Definition at line 348 of file nfs4state.c.

void nfs4_release_reclaim ( void )

Definition at line 4503 of file nfs4state.c.

void nfs4_state_init ( void )

Definition at line 4685 of file nfs4state.c.

void nfs4_state_shutdown ( void )

Definition at line 4815 of file nfs4state.c.

int nfs4_state_start ( void )

Definition at line 4736 of file nfs4state.c.

void nfs4_unlock_state ( void )

Definition at line 116 of file nfs4state.c.

__be32 nfsd4_bind_conn_to_session	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_bind_conn_to_session *	bcts
	)

Definition at line 1868 of file nfs4state.c.

void nfsd4_cleanup_open_state	(	struct nfsd4_open *	open,
		__be32	status
	)

Definition at line 3086 of file nfs4state.c.

__be32 nfsd4_close	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_close *	close
	)

Definition at line 3757 of file nfs4state.c.

__be32 nfsd4_create_session	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_create_session *	cr_ses
	)

Definition at line 1754 of file nfs4state.c.

__be32 nfsd4_delegreturn	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_delegreturn *	dr
	)

Definition at line 3804 of file nfs4state.c.

__be32 nfsd4_destroy_clientid	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_destroy_clientid *	dc
	)

Definition at line 2103 of file nfs4state.c.

__be32 nfsd4_destroy_session	(	struct svc_rqst *	r,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_destroy_session *	sessionid
	)

Definition at line 1907 of file nfs4state.c.

__be32 nfsd4_exchange_id	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_exchange_id *	exid
	)

Definition at line 1569 of file nfs4state.c.

struct nfs4_client_reclaim* nfsd4_find_reclaim_client ( struct nfs4_client * clp )

read

Definition at line 4523 of file nfs4state.c.

void nfsd4_free_slabs ( void )

Definition at line 2326 of file nfs4state.c.

__be32 nfsd4_free_stateid	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_free_stateid *	free_stateid
	)

Definition at line 3503 of file nfs4state.c.

void nfsd4_get_closestateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_close *	close
	)

Definition at line 4907 of file nfs4state.c.

void nfsd4_get_delegreturnstateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_delegreturn *	drp
	)

Definition at line 4889 of file nfs4state.c.

void nfsd4_get_freestateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_free_stateid *	fsp
	)

Definition at line 4895 of file nfs4state.c.

void nfsd4_get_lockustateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_locku *	locku
	)

Definition at line 4913 of file nfs4state.c.

void nfsd4_get_opendowngradestateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_open_downgrade *	odp
	)

Definition at line 4883 of file nfs4state.c.

void nfsd4_get_readstateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_read *	read
	)

Definition at line 4919 of file nfs4state.c.

void nfsd4_get_setattrstateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_setattr *	setattr
	)

Definition at line 4901 of file nfs4state.c.

void nfsd4_get_writestateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_write *	write
	)

Definition at line 4925 of file nfs4state.c.

int nfsd4_init_slabs ( void )

Definition at line 2336 of file nfs4state.c.

__be32 nfsd4_lock	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_lock *	lock
	)

Definition at line 4055 of file nfs4state.c.

__be32 nfsd4_lockt	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_lockt *	lockt
	)

Definition at line 4234 of file nfs4state.c.

__be32 nfsd4_locku	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_locku *	locku
	)

Definition at line 4308 of file nfs4state.c.

__be32 nfsd4_open_confirm	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_open_confirm *	oc
	)

Definition at line 3605 of file nfs4state.c.

__be32 nfsd4_open_downgrade	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_open_downgrade *	od
	)

Definition at line 3682 of file nfs4state.c.

__be32 nfsd4_process_open1	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_open *	open
	)

Definition at line 2601 of file nfs4state.c.

__be32 nfsd4_process_open2	(	struct svc_rqst *	rqstp,
		struct svc_fh *	current_fh,
		struct nfsd4_open *	open
	)

Definition at line 2990 of file nfs4state.c.

void nfsd4_purge_closed_stateid ( struct nfs4_stateowner * so )

Definition at line 3727 of file nfs4state.c.

void nfsd4_put_session ( struct nfsd4_session * ses )

Definition at line 916 of file nfs4state.c.

__be32 nfsd4_reclaim_complete	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_reclaim_complete *	rc
	)

Definition at line 2140 of file nfs4state.c.

__be32 nfsd4_release_lockowner	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_release_lockowner *	rlockowner
	)

Definition at line 4405 of file nfs4state.c.

__be32 nfsd4_renew	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		clientid_t *	clid
	)

Definition at line 3108 of file nfs4state.c.

__be32 nfsd4_replay_cache_entry	(	struct nfsd4_compoundres *	resp,
		struct nfsd4_sequence *	seq
	)

Definition at line 1516 of file nfs4state.c.

__be32 nfsd4_sequence	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_sequence *	seq
	)

Definition at line 2000 of file nfs4state.c.

void nfsd4_set_closestateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_close *	close
	)

Definition at line 4867 of file nfs4state.c.

void nfsd4_set_lockstateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_lock *	lock
	)

Definition at line 4873 of file nfs4state.c.

void nfsd4_set_opendowngradestateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_open_downgrade *	odp
	)

Definition at line 4855 of file nfs4state.c.

void nfsd4_set_openstateid	(	struct nfsd4_compound_state *	cstate,
		struct nfsd4_open *	open
	)

Definition at line 4861 of file nfs4state.c.

__be32 nfsd4_setclientid	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_setclientid *	setclid
	)

Definition at line 2179 of file nfs4state.c.

__be32 nfsd4_setclientid_confirm	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_setclientid_confirm *	setclientid_confirm
	)

Definition at line 2238 of file nfs4state.c.

void nfsd4_store_cache_entry ( struct nfsd4_compoundres * resp )

Definition at line 1460 of file nfs4state.c.

__be32 nfsd4_test_stateid	(	struct svc_rqst *	rqstp,
		struct nfsd4_compound_state *	cstate,
		struct nfsd4_test_stateid *	test_stateid
	)

Definition at line 3487 of file nfs4state.c.

void release_session_client ( struct nfsd4_session * session )

Definition at line 1092 of file nfs4state.c.

Variable Documentation

unsigned int max_delegations

Definition at line 159 of file nfs4state.c.

time_t nfsd4_grace = 90

Definition at line 55 of file nfs4state.c.

time_t nfsd4_lease = 90

Definition at line 54 of file nfs4state.c.

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation