d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
4a4fa974c1
freebsd-skq/sys/nfsclient/nfs.h
dwmalone 23aacadb39 Problem to avoid processes getting stuck in "vmopar". From Ian's 
mail:

	The problem seems to originate with NFS's postop_attr
	information that is returned with a read or write RPC.
	Within a vm_fault context, the code cannot deal with
	vnode_pager_setsize() shrinking a vnode.

	The workaround in the patch below stops the nfsm_postop_attr()
	macro from ever shrinking a vnode. If the new size in the
	postop_attr information is smaller, then it just sets the
	nfsnode n_attrstamp to 0 to stop the wrong size getting
	used in the future. This change only affects postop_attr
	attributes; the nfsm_loadattr() macro works as normal.

	The change is implemented by adding a new argument to
	nfs_loadattrcache() called 'dontshrink'. When this is
	non-zero, nfs_loadattrcache() will never reduce the
	vnode/nfsnode size; instead it zeros n_attrstamp.

There remain other was processes can get stuck in vmopar.

Submitted by:	Ian Dowse <iedowse@maths.tcd.ie>
Reviewed by:	dillon
Tested by:	Vadim Belman <voland@lflat.org>
2000-10-24 10:13:36 +00:00

728 lines
26 KiB
C
Raw Blame History

/*
* Copyright (c) 1989, 1993, 1995
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Rick Macklem at The University of Guelph.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)nfs.h 8.4 (Berkeley) 5/1/95
* $FreeBSD$
*/
#ifndef _NFS_NFS_H_
#define _NFS_NFS_H_
#ifdef _KERNEL
#include "opt_nfs.h"
#endif
/*
* Tunable constants for nfs
*/
#define NFS_MAXIOVEC 34
#define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */
#define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */
#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */
#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */
#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */
#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/
#define NFS_MAXREXMIT 100 /* Stop counting after this many */
#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */
#define NFS_RETRANS 10 /* Num of retrans for soft mounts */
#define NFS_MAXGRPS 16 /* Max. size of groups list */
#ifndef NFS_MINATTRTIMO
#define NFS_MINATTRTIMO 3 /* VREG attrib cache timeout in sec */
#endif
#ifndef NFS_MAXATTRTIMO
#define NFS_MAXATTRTIMO 60
#endif
#ifndef NFS_MINDIRATTRTIMO
#define NFS_MINDIRATTRTIMO 30 /* VDIR attrib cache timeout in sec */
#endif
#ifndef NFS_MAXDIRATTRTIMO
#define NFS_MAXDIRATTRTIMO 60
#endif
#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */
#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */
#define NFS_READDIRSIZE 8192 /* Def. readdir size */
#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */
#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */
#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */
#define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runnable */
#define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */
#ifndef NFS_GATHERDELAY
#define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */
#endif
#define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */
#ifdef _KERNEL
#define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */
#endif
/*
* Oddballs
*/
#define NMOD(a) ((a) % nfs_asyncdaemons)
#define NFS_CMPFH(n, f, s) \
((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s)))
#define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3)
#define NFS_SRVMAXDATA(n) \
(((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \
NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA)
/*
* XXX
* The B_INVAFTERWRITE flag should be set to whatever is required by the
* buffer cache code to say "Invalidate the block after it is written back".
*/
#define B_INVAFTERWRITE B_NOCACHE
/*
* The IO_METASYNC flag should be implemented for local file systems.
* (Until then, it is nothin at all.)
*/
#ifndef IO_METASYNC
#define IO_METASYNC 0
#endif
/*
* Arguments to mount NFS
*/
#define NFS_ARGSVERSION 3 /* change when nfs_args changes */
struct nfs_args {
int version; /* args structure version number */
struct sockaddr *addr; /* file server address */
int addrlen; /* length of address */
int sotype; /* Socket type */
int proto; /* and Protocol */
u_char *fh; /* File handle to be mounted */
int fhsize; /* Size, in bytes, of fh */
int flags; /* flags */
int wsize; /* write size in bytes */
int rsize; /* read size in bytes */
int readdirsize; /* readdir size in bytes */
int timeo; /* initial timeout in .1 secs */
int retrans; /* times to retry send */
int maxgrouplist; /* Max. size of group list */
int readahead; /* # of blocks to readahead */
int leaseterm; /* Term (sec) of lease */
int deadthresh; /* Retrans threshold */
char *hostname; /* server's name */
int acregmin; /* cache attrs for reg files min time */
int acregmax; /* cache attrs for reg files max time */
int acdirmin; /* cache attrs for dirs min time */
int acdirmax; /* cache attrs for dirs max time */
};
/*
* NFS mount option flags
*/
#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */
#define NFSMNT_WSIZE 0x00000002 /* set write size */
#define NFSMNT_RSIZE 0x00000004 /* set read size */
#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */
#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */
#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */
#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */
#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */
#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */
#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */
#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */
#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */
#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */
#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */
#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */
#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */
#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */
#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */
#define NFSMNT_ACREGMIN 0x00040000
#define NFSMNT_ACREGMAX 0x00080000
#define NFSMNT_ACDIRMIN 0x00100000
#define NFSMNT_ACDIRMAX 0x00200000
#define NFSSTA_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */
#define NFSSTA_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */
#define NFSSTA_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */
#define NFSSTA_MNTD 0x00200000 /* Mnt server for mnt point */
#define NFSSTA_DISMINPROG 0x00400000 /* Dismount in progress */
#define NFSSTA_DISMNT 0x00800000 /* Dismounted */
#define NFSSTA_SNDLOCK 0x01000000 /* Send socket lock */
#define NFSSTA_WANTSND 0x02000000 /* Want above */
#define NFSSTA_RCVLOCK 0x04000000 /* Rcv socket lock */
#define NFSSTA_WANTRCV 0x08000000 /* Want above */
#define NFSSTA_WAITAUTH 0x10000000 /* Wait for authentication */
#define NFSSTA_HASAUTH 0x20000000 /* Has authenticator */
#define NFSSTA_WANTAUTH 0x40000000 /* Wants an authenticator */
#define NFSSTA_AUTHERR 0x80000000 /* Authentication error */
/*
* Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs
* should ever try and use it.
*/
struct nfsd_args {
int sock; /* Socket to serve */
caddr_t name; /* Client addr for connection based sockets */
int namelen; /* Length of name */
};
struct nfsd_srvargs {
struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */
uid_t nsd_uid; /* Effective uid mapped to cred */
u_int32_t nsd_haddr; /* Ip address of client */
struct ucred nsd_cr; /* Cred. uid maps to */
int nsd_authlen; /* Length of auth string (ret) */
u_char *nsd_authstr; /* Auth string (ret) */
int nsd_verflen; /* and the verfier */
u_char *nsd_verfstr;
struct timeval nsd_timestamp; /* timestamp from verifier */
u_int32_t nsd_ttl; /* credential ttl (sec) */
NFSKERBKEY_T nsd_key; /* Session key */
};
struct nfsd_cargs {
char *ncd_dirp; /* Mount dir path */
uid_t ncd_authuid; /* Effective uid */
int ncd_authtype; /* Type of authenticator */
int ncd_authlen; /* Length of authenticator string */
u_char *ncd_authstr; /* Authenticator string */
int ncd_verflen; /* and the verifier */
u_char *ncd_verfstr;
NFSKERBKEY_T ncd_key; /* Session key */
};
/*
* XXX to allow amd to include nfs.h without nfsproto.h
*/
#ifdef NFS_NPROCS
/*
* Stats structure
*/
struct nfsstats {
int attrcache_hits;
int attrcache_misses;
int lookupcache_hits;
int lookupcache_misses;
int direofcache_hits;
int direofcache_misses;
int biocache_reads;
int read_bios;
int read_physios;
int biocache_writes;
int write_bios;
int write_physios;
int biocache_readlinks;
int readlink_bios;
int biocache_readdirs;
int readdir_bios;
int rpccnt[NFS_NPROCS];
int rpcretries;
int srvrpccnt[NFS_NPROCS];
int srvrpc_errs;
int srv_errs;
int rpcrequests;
int rpctimeouts;
int rpcunexpected;
int rpcinvalid;
int srvcache_inproghits;
int srvcache_idemdonehits;
int srvcache_nonidemdonehits;
int srvcache_misses;
int srvnqnfs_leases;
int srvnqnfs_maxleases;
int srvnqnfs_getleases;
int srvvop_writes;
int accesscache_hits;
int accesscache_misses;
};
#endif
/*
* Flags for nfssvc() system call.
*/
#define NFSSVC_BIOD 0x002
#define NFSSVC_NFSD 0x004
#define NFSSVC_ADDSOCK 0x008
#define NFSSVC_AUTHIN 0x010
#define NFSSVC_GOTAUTH 0x040
#define NFSSVC_AUTHINFAIL 0x080
#define NFSSVC_MNTD 0x100
/*
* fs.nfs sysctl(3) identifiers
*/
#define NFS_NFSSTATS 1 /* struct: struct nfsstats */
#define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */
#define FS_NFS_NAMES { \
{ 0, 0 }, \
{ "nfsstats", CTLTYPE_STRUCT }, \
{ "nfsprivport", CTLTYPE_INT }, \
}
#ifdef _KERNEL
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_NFSREQ);
MALLOC_DECLARE(M_NFSDIROFF);
MALLOC_DECLARE(M_NFSRVDESC);
MALLOC_DECLARE(M_NFSUID);
MALLOC_DECLARE(M_NQLEASE);
MALLOC_DECLARE(M_NFSD);
MALLOC_DECLARE(M_NFSBIGFH);
MALLOC_DECLARE(M_NFSHASH);
#endif
#ifdef ZONE_INTERRUPT
extern vm_zone_t nfsmount_zone;
#endif
extern struct callout_handle nfs_timer_handle;
struct uio; struct buf; struct vattr; struct nameidata; /* XXX */
/*
* The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts.
* What should be in this set is open to debate, but I believe that since
* I/O system calls on ufs are never interrupted by signals the set should
* be minimal. My reasoning is that many current programs that use signals
* such as SIGALRM will not expect file I/O system calls to be interrupted
* by them and break.
*/
#define NFSINT_SIGMASK(set) \
(SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
SIGISMEMBER(set, SIGQUIT))
/*
* Socket errors ignored for connectionless sockets??
* For now, ignore them all
*/
#define NFSIGNORE_SOERROR(s, e) \
((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \
((s) & PR_CONNREQUIRED) == 0)
/*
* Nfs outstanding request list element
*/
struct nfsreq {
TAILQ_ENTRY(nfsreq) r_chain;
struct mbuf *r_mreq;
struct mbuf *r_mrep;
struct mbuf *r_md;
caddr_t r_dpos;
struct nfsmount *r_nmp;
struct vnode *r_vp;
u_int32_t r_xid;
int r_flags; /* flags on request, see below */
int r_retry; /* max retransmission count */
int r_rexmit; /* current retrans count */
int r_timer; /* tick counter on reply */
u_int32_t r_procnum; /* NFS procedure number */
int r_rtt; /* RTT for rpc */
struct proc *r_procp; /* Proc that did I/O system call */
};
/*
* Queue head for nfsreq's
*/
extern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq;
/* Flag values for r_flags */
#define R_TIMING 0x01 /* timing request (in mntp) */
#define R_SENT 0x02 /* request has been sent */
#define R_SOFTTERM 0x04 /* soft mnt, too many retries */
#define R_INTR 0x08 /* intr mnt, signal pending */
#define R_SOCKERR 0x10 /* Fatal error on socket */
#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */
#define R_MUSTRESEND 0x40 /* Must resend request */
#define R_GETONEREP 0x80 /* Probe for one reply only */
/*
* A list of nfssvc_sock structures is maintained with all the sockets
* that require service by the nfsd.
* The nfsuid structs hang off of the nfssvc_sock structs in both lru
* and uid hash lists.
*/
#ifndef NFS_UIDHASHSIZ
#define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */
#endif
#define NUIDHASH(sock, uid) \
(&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ])
#ifndef NFS_WDELAYHASHSIZ
#define NFS_WDELAYHASHSIZ 16 /* and with this */
#endif
#define NWDELAYHASH(sock, f) \
(&(sock)->ns_wdelayhashtbl[(*((u_int32_t *)(f))) % NFS_WDELAYHASHSIZ])
#ifndef NFS_MUIDHASHSIZ
#define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */
#endif
#define NMUIDHASH(nmp, uid) \
(&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ])
#define NFSNOHASH(fhsum) \
(&nfsnodehashtbl[(fhsum) & nfsnodehash])
/*
* Network address hash list element
*/
union nethostaddr {
u_int32_t had_inetaddr;
struct sockaddr *had_nam;
};
struct nfsuid {
TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */
LIST_ENTRY(nfsuid) nu_hash; /* Hash list */
int nu_flag; /* Flags */
union nethostaddr nu_haddr; /* Host addr. for dgram sockets */
struct ucred nu_cr; /* Cred uid mapped to */
int nu_expire; /* Expiry time (sec) */
struct timeval nu_timestamp; /* Kerb. timestamp */
u_int32_t nu_nickname; /* Nickname on server */
NFSKERBKEY_T nu_key; /* and session key */
};
#define nu_inetaddr nu_haddr.had_inetaddr
#define nu_nam nu_haddr.had_nam
/* Bits for nu_flag */
#define NU_INETADDR 0x1
#define NU_NAM 0x2
#define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO)
struct nfsrv_rec {
STAILQ_ENTRY(nfsrv_rec) nr_link;
struct sockaddr *nr_address;
struct mbuf *nr_packet;
};
struct nfssvc_sock {
TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */
TAILQ_HEAD(, nfsuid) ns_uidlruhead;
struct file *ns_fp;
struct socket *ns_so;
struct sockaddr *ns_nam;
struct mbuf *ns_raw;
struct mbuf *ns_rawend;
STAILQ_HEAD(, nfsrv_rec) ns_rec;
struct mbuf *ns_frag;
int ns_flag;
int ns_solock;
int ns_cc;
int ns_reclen;
int ns_numuids;
u_int32_t ns_sref;
LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */
LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ];
LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ];
};
/* Bits for "ns_flag" */
#define SLP_VALID 0x01
#define SLP_DOREC 0x02
#define SLP_NEEDQ 0x04
#define SLP_DISCONN 0x08
#define SLP_GETSTREAM 0x10
#define SLP_LASTFRAG 0x20
#define SLP_ALLFLAGS 0xff
extern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead;
extern int nfssvc_sockhead_flag;
#define SLP_INIT 0x01
#define SLP_WANTINIT 0x02
/*
* One of these structures is allocated for each nfsd.
*/
struct nfsd {
TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */
int nfsd_flag; /* NFSD_ flags */
struct nfssvc_sock *nfsd_slp; /* Current socket */
int nfsd_authlen; /* Authenticator len */
u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */
int nfsd_verflen; /* and the Verifier */
u_char nfsd_verfstr[RPCVERF_MAXSIZ];
struct proc *nfsd_procp; /* Proc ptr */
struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */
};
/* Bits for "nfsd_flag" */
#define NFSD_WAITING 0x01
#define NFSD_REQINPROG 0x02
#define NFSD_NEEDAUTH 0x04
#define NFSD_AUTHFAIL 0x08
/*
* This structure is used by the server for describing each request.
* Some fields are used only when write request gathering is performed.
*/
struct nfsrv_descript {
u_quad_t nd_time; /* Write deadline (usec) */
off_t nd_off; /* Start byte offset */
off_t nd_eoff; /* and end byte offset */
LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */
LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */
LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */
struct mbuf *nd_mrep; /* Request mbuf list */
struct mbuf *nd_md; /* Current dissect mbuf */
struct mbuf *nd_mreq; /* Reply mbuf list */
struct sockaddr *nd_nam; /* and socket addr */
struct sockaddr *nd_nam2; /* return socket addr */
caddr_t nd_dpos; /* Current dissect pos */
u_int32_t nd_procnum; /* RPC # */
int nd_stable; /* storage type */
int nd_flag; /* nd_flag */
int nd_len; /* Length of this write */
int nd_repstat; /* Reply status */
u_int32_t nd_retxid; /* Reply xid */
u_int32_t nd_duration; /* Lease duration */
struct timeval nd_starttime; /* Time RPC initiated */
fhandle_t nd_fh; /* File handle */
struct ucred nd_cr; /* Credentials */
};
/* Bits for "nd_flag" */
#define ND_READ LEASE_READ
#define ND_WRITE LEASE_WRITE
#define ND_CHECK 0x04
#define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK)
#define ND_NFSV3 0x08
#define ND_NQNFS 0x10
#define ND_KERBNICK 0x20
#define ND_KERBFULL 0x40
#define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL)
extern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head;
extern int nfsd_head_flag;
#define NFSD_CHECKSLP 0x01
/*
* These macros compare nfsrv_descript structures.
*/
#define NFSW_CONTIG(o, n) \
((o)->nd_eoff >= (n)->nd_off && \
!bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH))
#define NFSW_SAMECRED(o, n) \
(((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \
!bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \
sizeof (struct ucred)))
/*
* Defines for WebNFS
*/
#define WEBNFS_ESC_CHAR '%'
#define WEBNFS_SPECCHAR_START 0x80
#define WEBNFS_NATIVE_CHAR 0x80
/*
* ..
* Possibly more here in the future.
*/
/*
* Macro for converting escape characters in WebNFS pathnames.
* Should really be in libkern.
*/
#define HEXTOC(c) \
((c) >= 'a' ? ((c) - ('a' - 10)) : \
((c) >= 'A' ? ((c) - ('A' - 10)) : ((c) - '0')))
#define HEXSTRTOI(p) \
((HEXTOC(p[0]) << 4) + HEXTOC(p[1]))
#ifdef NFS_DEBUG
extern int nfs_debug;
#define NFS_DEBUG_ASYNCIO 1 /* asynchronous i/o */
#define NFS_DEBUG_WG 2 /* server write gathering */
#define NFS_DEBUG_RC 4 /* server request caching */
#define NFS_DPF(cat, args) \
do { \
if (nfs_debug & NFS_DEBUG_##cat) printf args; \
} while (0)
#else
#define NFS_DPF(cat, args)
#endif
u_quad_t nfs_curusec __P((void));
int nfs_init __P((struct vfsconf *vfsp));
int nfs_uninit __P((struct vfsconf *vfsp));
int nfs_reply __P((struct nfsreq *));
int nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int));
int nfs_send __P((struct socket *, struct sockaddr *, struct mbuf *,
struct nfsreq *));
int nfs_rephead __P((int, struct nfsrv_descript *, struct nfssvc_sock *,
int, int, u_quad_t *, struct mbuf **, struct mbuf **,
caddr_t *));
int nfs_sndlock __P((struct nfsreq *));
void nfs_sndunlock __P((struct nfsreq *));
int nfs_slplock __P((struct nfssvc_sock *, int));
void nfs_slpunlock __P((struct nfssvc_sock *));
int nfs_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
int nfs_vinvalbuf __P((struct vnode *, int, struct ucred *, struct proc *,
int));
int nfs_readrpc __P((struct vnode *, struct uio *, struct ucred *));
int nfs_writerpc __P((struct vnode *, struct uio *, struct ucred *, int *,
int *));
int nfs_commit __P((struct vnode *vp, u_quad_t offset, int cnt,
struct ucred *cred, struct proc *procp));
int nfs_readdirrpc __P((struct vnode *, struct uio *, struct ucred *));
int nfs_asyncio __P((struct buf *, struct ucred *, struct proc *));
int nfs_doio __P((struct buf *, struct ucred *, struct proc *));
int nfs_readlinkrpc __P((struct vnode *, struct uio *, struct ucred *));
int nfs_sigintr __P((struct nfsmount *, struct nfsreq *, struct proc *));
int nfs_readdirplusrpc __P((struct vnode *, struct uio *, struct ucred *));
int nfsm_disct __P((struct mbuf **, caddr_t *, int, int, caddr_t *));
void nfsm_srvfattr __P((struct nfsrv_descript *, struct vattr *,
struct nfs_fattr *));
void nfsm_srvwcc __P((struct nfsrv_descript *, int, struct vattr *, int,
struct vattr *, struct mbuf **, char **));
void nfsm_srvpostopattr __P((struct nfsrv_descript *, int, struct vattr *,
struct mbuf **, char **));
int netaddr_match __P((int, union nethostaddr *, struct sockaddr *));
int nfs_request __P((struct vnode *, struct mbuf *, int, struct proc *,
struct ucred *, struct mbuf **, struct mbuf **,
caddr_t *));
int nfs_loadattrcache __P((struct vnode **, struct mbuf **, caddr_t *,
struct vattr *, int));
int nfs_namei __P((struct nameidata *, fhandle_t *, int,
struct nfssvc_sock *, struct sockaddr *, struct mbuf **,
caddr_t *, struct vnode **, struct proc *, int, int));
void nfsm_adj __P((struct mbuf *, int, int));
int nfsm_mbuftouio __P((struct mbuf **, struct uio *, int, caddr_t *));
void nfsrv_initcache __P((void));
int nfs_getauth __P((struct nfsmount *, struct nfsreq *, struct ucred *,
char **, int *, char *, int *, NFSKERBKEY_T));
int nfs_getnickauth __P((struct nfsmount *, struct ucred *, char **,
int *, char *, int));
int nfs_savenickauth __P((struct nfsmount *, struct ucred *, int,
NFSKERBKEY_T, struct mbuf **, char **,
struct mbuf *));
int nfs_adv __P((struct mbuf **, caddr_t *, int, int));
void nfs_nhinit __P((void));
void nfs_timer __P((void*));
u_long nfs_hash __P((nfsfh_t *, int));
int nfsrv_dorec __P((struct nfssvc_sock *, struct nfsd *,
struct nfsrv_descript **));
int nfsrv_getcache __P((struct nfsrv_descript *, struct nfssvc_sock *,
struct mbuf **));
void nfsrv_updatecache __P((struct nfsrv_descript *, int, struct mbuf *));
void nfsrv_cleancache __P((void));
int nfs_connect __P((struct nfsmount *, struct nfsreq *));
void nfs_disconnect __P((struct nfsmount *));
void nfs_safedisconnect __P((struct nfsmount *));
int nfs_getattrcache __P((struct vnode *, struct vattr *));
int nfsm_strtmbuf __P((struct mbuf **, char **, const char *, long));
int nfs_bioread __P((struct vnode *, struct uio *, int, struct ucred *));
int nfsm_uiotombuf __P((struct uio *, struct mbuf **, int, caddr_t *));
void nfsrv_init __P((int));
void nfs_clearcommit __P((struct mount *));
int nfsrv_errmap __P((struct nfsrv_descript *, int));
void nfsrvw_sort __P((gid_t *, int));
void nfsrv_setcred __P((struct ucred *, struct ucred *));
int nfs_writebp __P((struct buf *, int, struct proc *));
int nfsrv_object_create __P((struct vnode *));
void nfsrv_wakenfsd __P((struct nfssvc_sock *slp));
int nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *,
struct proc *, struct mbuf **));
int nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *,
struct proc *p));
int nfsrv3_access __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_fhtovp __P((fhandle_t *, int, struct vnode **, struct ucred *,
struct nfssvc_sock *, struct sockaddr *, int *,
int, int));
int nfsrv_setpublicfs __P((struct mount *, struct netexport *,
struct export_args *));
int nfs_ispublicfh __P((fhandle_t *));
int nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_pathconf __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp, struct proc *procp,
struct mbuf **mrq));
int nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_readdir __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_readdirplus __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp, struct proc *procp,
struct mbuf **mrq));
int nfsrv_readlink __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp, struct proc *procp,
struct mbuf **mrq));
int nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_setattr __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_statfs __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_symlink __P((struct nfsrv_descript *nfsd,
struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
int nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp,
struct proc *procp, struct mbuf **mrq));
void nfsrv_rcv __P((struct socket *so, void *arg, int waitflag));
void nfsrv_slpderef __P((struct nfssvc_sock *slp));
#endif /* _KERNEL */
#endif
Reference in New Issue View Git Blame Copy Permalink