nfsrvstats.h revision 24330
11541Srgrimes/* 222521Sdyson * Copyright (c) 1989, 1993, 1995 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * This code is derived from software contributed to Berkeley by 61541Srgrimes * Rick Macklem at The University of Guelph. 71541Srgrimes * 81541Srgrimes * Redistribution and use in source and binary forms, with or without 91541Srgrimes * modification, are permitted provided that the following conditions 101541Srgrimes * are met: 111541Srgrimes * 1. Redistributions of source code must retain the above copyright 121541Srgrimes * notice, this list of conditions and the following disclaimer. 131541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141541Srgrimes * notice, this list of conditions and the following disclaimer in the 151541Srgrimes * documentation and/or other materials provided with the distribution. 161541Srgrimes * 3. All advertising materials mentioning features or use of this software 171541Srgrimes * must display the following acknowledgement: 181541Srgrimes * This product includes software developed by the University of 191541Srgrimes * California, Berkeley and its contributors. 201541Srgrimes * 4. Neither the name of the University nor the names of its contributors 211541Srgrimes * may be used to endorse or promote products derived from this software 221541Srgrimes * without specific prior written permission. 231541Srgrimes * 241541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341541Srgrimes * SUCH DAMAGE. 351541Srgrimes * 3622521Sdyson * @(#)nfs.h 8.4 (Berkeley) 5/1/95 3724330Sguido * $Id: nfs.h,v 1.22 1997/02/22 09:42:34 peter Exp $ 381541Srgrimes */ 391541Srgrimes 402175Spaul#ifndef _NFS_NFS_H_ 412175Spaul#define _NFS_NFS_H_ 422175Spaul 431541Srgrimes/* 441541Srgrimes * Tunable constants for nfs 451541Srgrimes */ 461541Srgrimes 4722521Sdyson#ifdef KERNEL 4822521Sdyson 491541Srgrimes#define NFS_MAXIOVEC 34 509336Sdfr#define NFS_TICKINTVL 5 /* Desired time for a tick (msec) */ 519336Sdfr#define NFS_HZ (hz / nfs_ticks) /* Ticks/sec */ 529336Sdfr#define NFS_TIMEO (1 * NFS_HZ) /* Default timeout = 1 second */ 539336Sdfr#define NFS_MINTIMEO (1 * NFS_HZ) /* Min timeout to use */ 549336Sdfr#define NFS_MAXTIMEO (60 * NFS_HZ) /* Max timeout to backoff to */ 559336Sdfr#define NFS_MINIDEMTIMEO (5 * NFS_HZ) /* Min timeout for non-idempotent ops*/ 561541Srgrimes#define NFS_MAXREXMIT 100 /* Stop counting after this many */ 571541Srgrimes#define NFS_MAXWINDOW 1024 /* Max number of outstanding requests */ 581541Srgrimes#define NFS_RETRANS 10 /* Num of retrans for soft mounts */ 591541Srgrimes#define NFS_MAXGRPS 16 /* Max. size of groups list */ 601828Sdg#ifndef NFS_MINATTRTIMO 611541Srgrimes#define NFS_MINATTRTIMO 5 /* Attribute cache timeout in sec */ 621828Sdg#endif 631828Sdg#ifndef NFS_MAXATTRTIMO 641541Srgrimes#define NFS_MAXATTRTIMO 60 651828Sdg#endif 661541Srgrimes#define NFS_WSIZE 8192 /* Def. write data size <= 8192 */ 671541Srgrimes#define NFS_RSIZE 8192 /* Def. read data size <= 8192 */ 689336Sdfr#define NFS_READDIRSIZE 8192 /* Def. readdir size */ 691541Srgrimes#define NFS_DEFRAHEAD 1 /* Def. read ahead # blocks */ 701541Srgrimes#define NFS_MAXRAHEAD 4 /* Max. read ahead # blocks */ 711541Srgrimes#define NFS_MAXUIDHASH 64 /* Max. # of hashed uid entries/mp */ 7222521Sdyson#define NFS_MAXASYNCDAEMON 20 /* Max. number async_daemons runable */ 739336Sdfr#define NFS_MAXGATHERDELAY 100 /* Max. write gather delay (msec) */ 749336Sdfr#ifndef NFS_GATHERDELAY 759336Sdfr#define NFS_GATHERDELAY 10 /* Default write gather delay (msec) */ 769336Sdfr#endif 779336Sdfr#define NFS_DIRBLKSIZ 4096 /* Must be a multiple of DIRBLKSIZ */ 789336Sdfr 799336Sdfr/* 809336Sdfr * Oddballs 819336Sdfr */ 821541Srgrimes#define NMOD(a) ((a) % nfs_asyncdaemons) 839336Sdfr#define NFS_CMPFH(n, f, s) \ 849336Sdfr ((n)->n_fhsize == (s) && !bcmp((caddr_t)(n)->n_fhp, (caddr_t)(f), (s))) 859336Sdfr#define NFS_ISV3(v) (VFSTONFS((v)->v_mount)->nm_flag & NFSMNT_NFSV3) 869336Sdfr#define NFS_SRVMAXDATA(n) \ 879336Sdfr (((n)->nd_flag & ND_NFSV3) ? (((n)->nd_nam2) ? \ 889336Sdfr NFS_MAXDGRAMDATA : NFS_MAXDATA) : NFS_V2MAXDATA) 891541Srgrimes 901541Srgrimes/* 919336Sdfr * XXX 929336Sdfr * The B_INVAFTERWRITE flag should be set to whatever is required by the 939336Sdfr * buffer cache code to say "Invalidate the block after it is written back". 949336Sdfr */ 959336Sdfr#ifdef __FreeBSD__ 969336Sdfr#define B_INVAFTERWRITE B_NOCACHE 979336Sdfr#else 989336Sdfr#define B_INVAFTERWRITE B_INVAL 999336Sdfr#endif 1009336Sdfr 1019336Sdfr/* 1029336Sdfr * The IO_METASYNC flag should be implemented for local file systems. 1039336Sdfr * (Until then, it is nothin at all.) 1049336Sdfr */ 1059336Sdfr#ifndef IO_METASYNC 1069336Sdfr#define IO_METASYNC 0 1079336Sdfr#endif 1089336Sdfr 1099336Sdfr/* 1101541Srgrimes * Set the attribute timeout based on how recently the file has been modified. 1111541Srgrimes */ 1121541Srgrimes#define NFS_ATTRTIMEO(np) \ 1131541Srgrimes ((((np)->n_flag & NMODIFIED) || \ 1141541Srgrimes (time.tv_sec - (np)->n_mtime) / 10 < NFS_MINATTRTIMO) ? NFS_MINATTRTIMO : \ 1151541Srgrimes ((time.tv_sec - (np)->n_mtime) / 10 > NFS_MAXATTRTIMO ? NFS_MAXATTRTIMO : \ 1161541Srgrimes (time.tv_sec - (np)->n_mtime) / 10)) 1171541Srgrimes 1181541Srgrimes/* 1199336Sdfr * Expected allocation sizes for major data structures. If the actual size 1209336Sdfr * of the structure exceeds these sizes, then malloc() will be allocating 1219336Sdfr * almost twice the memory required. This is used in nfs_init() to warn 1229336Sdfr * the sysadmin that the size of a structure should be reduced. 1239336Sdfr * (These sizes are always a power of 2. If the kernel malloc() changes 1249336Sdfr * to one that does not allocate space in powers of 2 size, then this all 1259336Sdfr * becomes bunk!) 1269336Sdfr */ 1279336Sdfr#define NFS_NODEALLOC 256 1289336Sdfr#define NFS_MNTALLOC 512 1299336Sdfr#define NFS_SVCALLOC 256 1309336Sdfr#define NFS_UIDALLOC 128 1319336Sdfr 13222521Sdyson#endif /* KERNEL */ 13322521Sdyson 1349336Sdfr/* 13522521Sdyson * NFS mount option flags 13622521Sdyson */ 13722521Sdyson#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 13822521Sdyson#define NFSMNT_WSIZE 0x00000002 /* set write size */ 13922521Sdyson#define NFSMNT_RSIZE 0x00000004 /* set read size */ 14022521Sdyson#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 14122521Sdyson#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 14222521Sdyson#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 14322521Sdyson#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 14422521Sdyson#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 14522521Sdyson#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 14622521Sdyson#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 14722521Sdyson#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 14822521Sdyson#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 14922521Sdyson#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 15022521Sdyson#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 15122521Sdyson#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 15222521Sdyson#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 15322521Sdyson#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 15422521Sdyson#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 15522521Sdyson#define NFSMNT_INTERNAL 0xfffc0000 /* Bits set internally */ 15622521Sdyson#define NFSMNT_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 15722521Sdyson#define NFSMNT_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 15822521Sdyson#define NFSMNT_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 15922521Sdyson#define NFSMNT_MNTD 0x00200000 /* Mnt server for mnt point */ 16022521Sdyson#define NFSMNT_DISMINPROG 0x00400000 /* Dismount in progress */ 16122521Sdyson#define NFSMNT_DISMNT 0x00800000 /* Dismounted */ 16222521Sdyson#define NFSMNT_SNDLOCK 0x01000000 /* Send socket lock */ 16322521Sdyson#define NFSMNT_WANTSND 0x02000000 /* Want above */ 16422521Sdyson#define NFSMNT_RCVLOCK 0x04000000 /* Rcv socket lock */ 16522521Sdyson#define NFSMNT_WANTRCV 0x08000000 /* Want above */ 16622521Sdyson#define NFSMNT_WAITAUTH 0x10000000 /* Wait for authentication */ 16722521Sdyson#define NFSMNT_HASAUTH 0x20000000 /* Has authenticator */ 16822521Sdyson#define NFSMNT_WANTAUTH 0x40000000 /* Wants an authenticator */ 16922521Sdyson#define NFSMNT_AUTHERR 0x80000000 /* Authentication error */ 17022521Sdyson 17122521Sdyson/* 17222521Sdyson * Arguments to mount NFS 17322521Sdyson */ 17422521Sdyson#define NFS_ARGSVERSION 3 /* change when nfs_args changes */ 17522521Sdysonstruct nfs_args { 17622521Sdyson int version; /* args structure version number */ 17722521Sdyson struct sockaddr *addr; /* file server address */ 17822521Sdyson int addrlen; /* length of address */ 17922521Sdyson int sotype; /* Socket type */ 18022521Sdyson int proto; /* and Protocol */ 18122521Sdyson u_char *fh; /* File handle to be mounted */ 18222521Sdyson int fhsize; /* Size, in bytes, of fh */ 18322521Sdyson int flags; /* flags */ 18422521Sdyson int wsize; /* write size in bytes */ 18522521Sdyson int rsize; /* read size in bytes */ 18622521Sdyson int readdirsize; /* readdir size in bytes */ 18722521Sdyson int timeo; /* initial timeout in .1 secs */ 18822521Sdyson int retrans; /* times to retry send */ 18922521Sdyson int maxgrouplist; /* Max. size of group list */ 19022521Sdyson int readahead; /* # of blocks to readahead */ 19122521Sdyson int leaseterm; /* Term (sec) of lease */ 19222521Sdyson int deadthresh; /* Retrans threshold */ 19322521Sdyson char *hostname; /* server's name */ 19422521Sdyson}; 19522521Sdyson 19622521Sdyson/* 19722521Sdyson * NFS mount option flags 19822521Sdyson */ 19922521Sdyson#define NFSMNT_SOFT 0x00000001 /* soft mount (hard is default) */ 20022521Sdyson#define NFSMNT_WSIZE 0x00000002 /* set write size */ 20122521Sdyson#define NFSMNT_RSIZE 0x00000004 /* set read size */ 20222521Sdyson#define NFSMNT_TIMEO 0x00000008 /* set initial timeout */ 20322521Sdyson#define NFSMNT_RETRANS 0x00000010 /* set number of request retries */ 20422521Sdyson#define NFSMNT_MAXGRPS 0x00000020 /* set maximum grouplist size */ 20522521Sdyson#define NFSMNT_INT 0x00000040 /* allow interrupts on hard mount */ 20622521Sdyson#define NFSMNT_NOCONN 0x00000080 /* Don't Connect the socket */ 20722521Sdyson#define NFSMNT_NQNFS 0x00000100 /* Use Nqnfs protocol */ 20822521Sdyson#define NFSMNT_NFSV3 0x00000200 /* Use NFS Version 3 protocol */ 20922521Sdyson#define NFSMNT_KERB 0x00000400 /* Use Kerberos authentication */ 21022521Sdyson#define NFSMNT_DUMBTIMR 0x00000800 /* Don't estimate rtt dynamically */ 21122521Sdyson#define NFSMNT_LEASETERM 0x00001000 /* set lease term (nqnfs) */ 21222521Sdyson#define NFSMNT_READAHEAD 0x00002000 /* set read ahead */ 21322521Sdyson#define NFSMNT_DEADTHRESH 0x00004000 /* set dead server retry thresh */ 21422521Sdyson#define NFSMNT_RESVPORT 0x00008000 /* Allocate a reserved port */ 21522521Sdyson#define NFSMNT_RDIRPLUS 0x00010000 /* Use Readdirplus for V3 */ 21622521Sdyson#define NFSMNT_READDIRSIZE 0x00020000 /* Set readdir size */ 21722521Sdyson#define NFSMNT_INTERNAL 0xfffc0000 /* Bits set internally */ 21822521Sdyson#define NFSMNT_HASWRITEVERF 0x00040000 /* Has write verifier for V3 */ 21922521Sdyson#define NFSMNT_GOTPATHCONF 0x00080000 /* Got the V3 pathconf info */ 22022521Sdyson#define NFSMNT_GOTFSINFO 0x00100000 /* Got the V3 fsinfo */ 22122521Sdyson#define NFSMNT_MNTD 0x00200000 /* Mnt server for mnt point */ 22222521Sdyson#define NFSMNT_DISMINPROG 0x00400000 /* Dismount in progress */ 22322521Sdyson#define NFSMNT_DISMNT 0x00800000 /* Dismounted */ 22422521Sdyson#define NFSMNT_SNDLOCK 0x01000000 /* Send socket lock */ 22522521Sdyson#define NFSMNT_WANTSND 0x02000000 /* Want above */ 22622521Sdyson#define NFSMNT_RCVLOCK 0x04000000 /* Rcv socket lock */ 22722521Sdyson#define NFSMNT_WANTRCV 0x08000000 /* Want above */ 22822521Sdyson#define NFSMNT_WAITAUTH 0x10000000 /* Wait for authentication */ 22922521Sdyson#define NFSMNT_HASAUTH 0x20000000 /* Has authenticator */ 23022521Sdyson#define NFSMNT_WANTAUTH 0x40000000 /* Wants an authenticator */ 23122521Sdyson#define NFSMNT_AUTHERR 0x80000000 /* Authentication error */ 23222521Sdyson 23322521Sdyson/* 2341541Srgrimes * Structures for the nfssvc(2) syscall. Not that anyone but nfsd and mount_nfs 2351541Srgrimes * should ever try and use it. 2361541Srgrimes */ 2371541Srgrimesstruct nfsd_args { 2381541Srgrimes int sock; /* Socket to serve */ 23922521Sdyson caddr_t name; /* Client addr for connection based sockets */ 2401541Srgrimes int namelen; /* Length of name */ 2411541Srgrimes}; 2421541Srgrimes 2431541Srgrimesstruct nfsd_srvargs { 2441541Srgrimes struct nfsd *nsd_nfsd; /* Pointer to in kernel nfsd struct */ 2451541Srgrimes uid_t nsd_uid; /* Effective uid mapped to cred */ 2461541Srgrimes u_long nsd_haddr; /* Ip address of client */ 2471541Srgrimes struct ucred nsd_cr; /* Cred. uid maps to */ 2481541Srgrimes int nsd_authlen; /* Length of auth string (ret) */ 2499336Sdfr u_char *nsd_authstr; /* Auth string (ret) */ 2509336Sdfr int nsd_verflen; /* and the verfier */ 2519336Sdfr u_char *nsd_verfstr; 2529336Sdfr struct timeval nsd_timestamp; /* timestamp from verifier */ 2539336Sdfr u_long nsd_ttl; /* credential ttl (sec) */ 2549336Sdfr NFSKERBKEY_T nsd_key; /* Session key */ 2551541Srgrimes}; 2561541Srgrimes 2571541Srgrimesstruct nfsd_cargs { 2581541Srgrimes char *ncd_dirp; /* Mount dir path */ 2591541Srgrimes uid_t ncd_authuid; /* Effective uid */ 2601541Srgrimes int ncd_authtype; /* Type of authenticator */ 2611541Srgrimes int ncd_authlen; /* Length of authenticator string */ 2629336Sdfr u_char *ncd_authstr; /* Authenticator string */ 2639336Sdfr int ncd_verflen; /* and the verifier */ 2649336Sdfr u_char *ncd_verfstr; 2659336Sdfr NFSKERBKEY_T ncd_key; /* Session key */ 2661541Srgrimes}; 2671541Srgrimes 2681541Srgrimes/* 26922521Sdyson * XXX to allow amd to include nfs.h without nfsproto.h 27022521Sdyson */ 27122521Sdyson#ifdef NFS_NPROCS 27222521Sdyson/* 2731541Srgrimes * Stats structure 2741541Srgrimes */ 2751541Srgrimesstruct nfsstats { 2761541Srgrimes int attrcache_hits; 2771541Srgrimes int attrcache_misses; 2781541Srgrimes int lookupcache_hits; 2791541Srgrimes int lookupcache_misses; 2801541Srgrimes int direofcache_hits; 2811541Srgrimes int direofcache_misses; 2821541Srgrimes int biocache_reads; 2831541Srgrimes int read_bios; 2841541Srgrimes int read_physios; 2851541Srgrimes int biocache_writes; 2861541Srgrimes int write_bios; 2871541Srgrimes int write_physios; 2881541Srgrimes int biocache_readlinks; 2891541Srgrimes int readlink_bios; 2901541Srgrimes int biocache_readdirs; 2911541Srgrimes int readdir_bios; 2921541Srgrimes int rpccnt[NFS_NPROCS]; 2931541Srgrimes int rpcretries; 2941541Srgrimes int srvrpccnt[NFS_NPROCS]; 2951541Srgrimes int srvrpc_errs; 2961541Srgrimes int srv_errs; 2971541Srgrimes int rpcrequests; 2981541Srgrimes int rpctimeouts; 2991541Srgrimes int rpcunexpected; 3001541Srgrimes int rpcinvalid; 3011541Srgrimes int srvcache_inproghits; 3021541Srgrimes int srvcache_idemdonehits; 3031541Srgrimes int srvcache_nonidemdonehits; 3041541Srgrimes int srvcache_misses; 3051541Srgrimes int srvnqnfs_leases; 3061541Srgrimes int srvnqnfs_maxleases; 3071541Srgrimes int srvnqnfs_getleases; 3089336Sdfr int srvvop_writes; 3091541Srgrimes}; 31022521Sdyson#endif 3111541Srgrimes 3121541Srgrimes/* 3131541Srgrimes * Flags for nfssvc() system call. 3141541Srgrimes */ 3151541Srgrimes#define NFSSVC_BIOD 0x002 3161541Srgrimes#define NFSSVC_NFSD 0x004 3171541Srgrimes#define NFSSVC_ADDSOCK 0x008 3181541Srgrimes#define NFSSVC_AUTHIN 0x010 3191541Srgrimes#define NFSSVC_GOTAUTH 0x040 3201541Srgrimes#define NFSSVC_AUTHINFAIL 0x080 3211541Srgrimes#define NFSSVC_MNTD 0x100 3221541Srgrimes 3231541Srgrimes/* 3243820Swollman * fs.nfs sysctl(3) identifiers 3253820Swollman */ 3263820Swollman#define NFS_NFSSTATS 1 /* struct: struct nfsstats */ 32724330Sguido#define NFS_NFSPRIVPORT 2 /* int: prohibit nfs to resvports */ 3283820Swollman 3293820Swollman#define FS_NFS_NAMES { \ 3303820Swollman { 0, 0 }, \ 3313820Swollman { "nfsstats", CTLTYPE_STRUCT }, \ 33224330Sguido { "nfsprivport", CTLTYPE_INT }, \ 3333820Swollman} 3343820Swollman 3353820Swollman/* 3361541Srgrimes * The set of signals the interrupt an I/O in progress for NFSMNT_INT mounts. 3371541Srgrimes * What should be in this set is open to debate, but I believe that since 3381541Srgrimes * I/O system calls on ufs are never interrupted by signals the set should 3391541Srgrimes * be minimal. My reasoning is that many current programs that use signals 3401541Srgrimes * such as SIGALRM will not expect file I/O system calls to be interrupted 3411541Srgrimes * by them and break. 3421541Srgrimes */ 34322521Sdyson#ifdef KERNEL 3444067Swollman 3454067Swollmanstruct uio; struct buf; struct vattr; struct nameidata; /* XXX */ 3464067Swollman 3471541Srgrimes#define NFSINT_SIGMASK (sigmask(SIGINT)|sigmask(SIGTERM)|sigmask(SIGKILL)| \ 3481541Srgrimes sigmask(SIGHUP)|sigmask(SIGQUIT)) 3491541Srgrimes 3501541Srgrimes/* 3511541Srgrimes * Socket errors ignored for connectionless sockets?? 3521541Srgrimes * For now, ignore them all 3531541Srgrimes */ 3541541Srgrimes#define NFSIGNORE_SOERROR(s, e) \ 3551541Srgrimes ((e) != EINTR && (e) != ERESTART && (e) != EWOULDBLOCK && \ 3561541Srgrimes ((s) & PR_CONNREQUIRED) == 0) 3571541Srgrimes 3581541Srgrimes/* 3591541Srgrimes * Nfs outstanding request list element 3601541Srgrimes */ 3611541Srgrimesstruct nfsreq { 3623664Sphk TAILQ_ENTRY(nfsreq) r_chain; 3631541Srgrimes struct mbuf *r_mreq; 3641541Srgrimes struct mbuf *r_mrep; 3651541Srgrimes struct mbuf *r_md; 3661541Srgrimes caddr_t r_dpos; 3671541Srgrimes struct nfsmount *r_nmp; 3681541Srgrimes struct vnode *r_vp; 3691541Srgrimes u_long r_xid; 3701541Srgrimes int r_flags; /* flags on request, see below */ 3711541Srgrimes int r_retry; /* max retransmission count */ 3721541Srgrimes int r_rexmit; /* current retrans count */ 3731541Srgrimes int r_timer; /* tick counter on reply */ 3741541Srgrimes int r_procnum; /* NFS procedure number */ 3751541Srgrimes int r_rtt; /* RTT for rpc */ 3761541Srgrimes struct proc *r_procp; /* Proc that did I/O system call */ 3771541Srgrimes}; 3781541Srgrimes 3793664Sphk/* 3803664Sphk * Queue head for nfsreq's 3813664Sphk */ 3829759Sbdeextern TAILQ_HEAD(nfs_reqq, nfsreq) nfs_reqq; 3833664Sphk 3841541Srgrimes/* Flag values for r_flags */ 3851541Srgrimes#define R_TIMING 0x01 /* timing request (in mntp) */ 3861541Srgrimes#define R_SENT 0x02 /* request has been sent */ 3871541Srgrimes#define R_SOFTTERM 0x04 /* soft mnt, too many retries */ 3881541Srgrimes#define R_INTR 0x08 /* intr mnt, signal pending */ 3891541Srgrimes#define R_SOCKERR 0x10 /* Fatal error on socket */ 3901541Srgrimes#define R_TPRINTFMSG 0x20 /* Did a tprintf msg. */ 3911541Srgrimes#define R_MUSTRESEND 0x40 /* Must resend request */ 3921541Srgrimes#define R_GETONEREP 0x80 /* Probe for one reply only */ 3931541Srgrimes 3941541Srgrimes/* 3951541Srgrimes * A list of nfssvc_sock structures is maintained with all the sockets 3961541Srgrimes * that require service by the nfsd. 3971541Srgrimes * The nfsuid structs hang off of the nfssvc_sock structs in both lru 3981541Srgrimes * and uid hash lists. 3991541Srgrimes */ 4009336Sdfr#ifndef NFS_UIDHASHSIZ 4019336Sdfr#define NFS_UIDHASHSIZ 29 /* Tune the size of nfssvc_sock with this */ 4029336Sdfr#endif 4033664Sphk#define NUIDHASH(sock, uid) \ 4049336Sdfr (&(sock)->ns_uidhashtbl[(uid) % NFS_UIDHASHSIZ]) 4059336Sdfr#ifndef NFS_WDELAYHASHSIZ 4069336Sdfr#define NFS_WDELAYHASHSIZ 16 /* and with this */ 4079336Sdfr#endif 4089336Sdfr#define NWDELAYHASH(sock, f) \ 4099336Sdfr (&(sock)->ns_wdelayhashtbl[(*((u_long *)(f))) % NFS_WDELAYHASHSIZ]) 4109336Sdfr#ifndef NFS_MUIDHASHSIZ 41119449Sdfr#define NFS_MUIDHASHSIZ 63 /* Tune the size of nfsmount with this */ 4129336Sdfr#endif 4139336Sdfr#define NMUIDHASH(nmp, uid) \ 4149336Sdfr (&(nmp)->nm_uidhashtbl[(uid) % NFS_MUIDHASHSIZ]) 4159336Sdfr#define NFSNOHASH(fhsum) \ 4169336Sdfr (&nfsnodehashtbl[(fhsum) & nfsnodehash]) 4171541Srgrimes 4181541Srgrimes/* 4191541Srgrimes * Network address hash list element 4201541Srgrimes */ 4211541Srgrimesunion nethostaddr { 4221541Srgrimes u_long had_inetaddr; 4231541Srgrimes struct mbuf *had_nam; 4241541Srgrimes}; 4251541Srgrimes 4261541Srgrimesstruct nfsuid { 4273664Sphk TAILQ_ENTRY(nfsuid) nu_lru; /* LRU chain */ 4283664Sphk LIST_ENTRY(nfsuid) nu_hash; /* Hash list */ 4291541Srgrimes int nu_flag; /* Flags */ 4301541Srgrimes union nethostaddr nu_haddr; /* Host addr. for dgram sockets */ 4311541Srgrimes struct ucred nu_cr; /* Cred uid mapped to */ 4329336Sdfr int nu_expire; /* Expiry time (sec) */ 4339336Sdfr struct timeval nu_timestamp; /* Kerb. timestamp */ 4349336Sdfr u_long nu_nickname; /* Nickname on server */ 4359336Sdfr NFSKERBKEY_T nu_key; /* and session key */ 4361541Srgrimes}; 4371541Srgrimes 4381541Srgrimes#define nu_inetaddr nu_haddr.had_inetaddr 4391541Srgrimes#define nu_nam nu_haddr.had_nam 4401541Srgrimes/* Bits for nu_flag */ 4411541Srgrimes#define NU_INETADDR 0x1 4429336Sdfr#define NU_NAM 0x2 4439336Sdfr#define NU_NETFAM(u) (((u)->nu_flag & NU_INETADDR) ? AF_INET : AF_ISO) 4441541Srgrimes 4451541Srgrimesstruct nfssvc_sock { 4463664Sphk TAILQ_ENTRY(nfssvc_sock) ns_chain; /* List of all nfssvc_sock's */ 4473664Sphk TAILQ_HEAD(, nfsuid) ns_uidlruhead; 4481541Srgrimes struct file *ns_fp; 4491541Srgrimes struct socket *ns_so; 4501541Srgrimes struct mbuf *ns_nam; 4511541Srgrimes struct mbuf *ns_raw; 4521541Srgrimes struct mbuf *ns_rawend; 4531541Srgrimes struct mbuf *ns_rec; 4541541Srgrimes struct mbuf *ns_recend; 4559336Sdfr struct mbuf *ns_frag; 4569336Sdfr int ns_flag; 4579336Sdfr int ns_solock; 4589336Sdfr int ns_cc; 4599336Sdfr int ns_reclen; 4601541Srgrimes int ns_numuids; 4619336Sdfr u_long ns_sref; 4629336Sdfr LIST_HEAD(, nfsrv_descript) ns_tq; /* Write gather lists */ 4639336Sdfr LIST_HEAD(, nfsuid) ns_uidhashtbl[NFS_UIDHASHSIZ]; 4649336Sdfr LIST_HEAD(nfsrvw_delayhash, nfsrv_descript) ns_wdelayhashtbl[NFS_WDELAYHASHSIZ]; 4651541Srgrimes}; 4661541Srgrimes 4671541Srgrimes/* Bits for "ns_flag" */ 4681541Srgrimes#define SLP_VALID 0x01 4691541Srgrimes#define SLP_DOREC 0x02 4701541Srgrimes#define SLP_NEEDQ 0x04 4711541Srgrimes#define SLP_DISCONN 0x08 4721541Srgrimes#define SLP_GETSTREAM 0x10 4739336Sdfr#define SLP_LASTFRAG 0x20 4741541Srgrimes#define SLP_ALLFLAGS 0xff 4751541Srgrimes 4769759Sbdeextern TAILQ_HEAD(nfssvc_sockhead, nfssvc_sock) nfssvc_sockhead; 4779759Sbdeextern int nfssvc_sockhead_flag; 4783664Sphk#define SLP_INIT 0x01 4793664Sphk#define SLP_WANTINIT 0x02 4803664Sphk 4811541Srgrimes/* 4821541Srgrimes * One of these structures is allocated for each nfsd. 4831541Srgrimes */ 4841541Srgrimesstruct nfsd { 4859336Sdfr TAILQ_ENTRY(nfsd) nfsd_chain; /* List of all nfsd's */ 4869336Sdfr int nfsd_flag; /* NFSD_ flags */ 4879336Sdfr struct nfssvc_sock *nfsd_slp; /* Current socket */ 4889336Sdfr int nfsd_authlen; /* Authenticator len */ 4899336Sdfr u_char nfsd_authstr[RPCAUTH_MAXSIZ]; /* Authenticator data */ 4909336Sdfr int nfsd_verflen; /* and the Verifier */ 4919336Sdfr u_char nfsd_verfstr[RPCVERF_MAXSIZ]; 4929336Sdfr struct proc *nfsd_procp; /* Proc ptr */ 4939336Sdfr struct nfsrv_descript *nfsd_nd; /* Associated nfsrv_descript */ 4941541Srgrimes}; 4951541Srgrimes 4969336Sdfr/* Bits for "nfsd_flag" */ 4971541Srgrimes#define NFSD_WAITING 0x01 4983664Sphk#define NFSD_REQINPROG 0x02 4993664Sphk#define NFSD_NEEDAUTH 0x04 5003664Sphk#define NFSD_AUTHFAIL 0x08 5013305Sphk 5029336Sdfr/* 5039336Sdfr * This structure is used by the server for describing each request. 5049336Sdfr * Some fields are used only when write request gathering is performed. 5059336Sdfr */ 5069336Sdfrstruct nfsrv_descript { 5079336Sdfr u_quad_t nd_time; /* Write deadline (usec) */ 5089336Sdfr off_t nd_off; /* Start byte offset */ 5099336Sdfr off_t nd_eoff; /* and end byte offset */ 5109336Sdfr LIST_ENTRY(nfsrv_descript) nd_hash; /* Hash list */ 5119336Sdfr LIST_ENTRY(nfsrv_descript) nd_tq; /* and timer list */ 5129336Sdfr LIST_HEAD(,nfsrv_descript) nd_coalesce; /* coalesced writes */ 5139336Sdfr struct mbuf *nd_mrep; /* Request mbuf list */ 5149336Sdfr struct mbuf *nd_md; /* Current dissect mbuf */ 5159336Sdfr struct mbuf *nd_mreq; /* Reply mbuf list */ 5169336Sdfr struct mbuf *nd_nam; /* and socket addr */ 5179336Sdfr struct mbuf *nd_nam2; /* return socket addr */ 5189336Sdfr caddr_t nd_dpos; /* Current dissect pos */ 5199336Sdfr int nd_procnum; /* RPC # */ 5209336Sdfr int nd_stable; /* storage type */ 5219336Sdfr int nd_flag; /* nd_flag */ 5229336Sdfr int nd_len; /* Length of this write */ 5239336Sdfr int nd_repstat; /* Reply status */ 5249336Sdfr u_long nd_retxid; /* Reply xid */ 5259336Sdfr u_long nd_duration; /* Lease duration */ 5269336Sdfr struct timeval nd_starttime; /* Time RPC initiated */ 5279336Sdfr fhandle_t nd_fh; /* File handle */ 5289336Sdfr struct ucred nd_cr; /* Credentials */ 5299336Sdfr}; 5309336Sdfr 5319336Sdfr/* Bits for "nd_flag" */ 5329336Sdfr#define ND_READ LEASE_READ 5339336Sdfr#define ND_WRITE LEASE_WRITE 5349336Sdfr#define ND_CHECK 0x04 5359336Sdfr#define ND_LEASE (ND_READ | ND_WRITE | ND_CHECK) 5369336Sdfr#define ND_NFSV3 0x08 5379336Sdfr#define ND_NQNFS 0x10 5389336Sdfr#define ND_KERBNICK 0x20 5399336Sdfr#define ND_KERBFULL 0x40 5409336Sdfr#define ND_KERBAUTH (ND_KERBNICK | ND_KERBFULL) 5419336Sdfr 5429759Sbdeextern TAILQ_HEAD(nfsd_head, nfsd) nfsd_head; 5439759Sbdeextern int nfsd_head_flag; 5443664Sphk#define NFSD_CHECKSLP 0x01 5453664Sphk 5469336Sdfr/* 5479336Sdfr * These macros compare nfsrv_descript structures. 5489336Sdfr */ 5499336Sdfr#define NFSW_CONTIG(o, n) \ 5509336Sdfr ((o)->nd_eoff >= (n)->nd_off && \ 5519336Sdfr !bcmp((caddr_t)&(o)->nd_fh, (caddr_t)&(n)->nd_fh, NFSX_V3FH)) 5529336Sdfr 5539336Sdfr#define NFSW_SAMECRED(o, n) \ 5549336Sdfr (((o)->nd_flag & ND_KERBAUTH) == ((n)->nd_flag & ND_KERBAUTH) && \ 5559336Sdfr !bcmp((caddr_t)&(o)->nd_cr, (caddr_t)&(n)->nd_cr, \ 5569336Sdfr sizeof (struct ucred))) 5579336Sdfr 55822521Sdyson 55922521Sdysonint nfs_init __P((struct vfsconf *vfsp)); 5603305Sphkint nfs_reply __P((struct nfsreq *)); 5619336Sdfrint nfs_getreq __P((struct nfsrv_descript *,struct nfsd *,int)); 5623305Sphkint nfs_send __P((struct socket *,struct mbuf *,struct mbuf *,struct nfsreq *)); 5639336Sdfrint nfs_rephead __P((int,struct nfsrv_descript *,struct nfssvc_sock *,int,int,u_quad_t *,struct mbuf **,struct mbuf **,caddr_t *)); 5643305Sphkint nfs_sndlock __P((int *,struct nfsreq *)); 56512453Sbdevoid nfs_sndunlock __P((int *flagp)); 5663305Sphkint nfs_disct __P((struct mbuf **,caddr_t *,int,int,caddr_t *)); 5673305Sphkint nfs_vinvalbuf __P((struct vnode *,int,struct ucred *,struct proc *,int)); 5683305Sphkint nfs_readrpc __P((struct vnode *,struct uio *,struct ucred *)); 5699336Sdfrint nfs_writerpc __P((struct vnode *,struct uio *,struct ucred *,int *,int *)); 5703305Sphkint nfs_readdirrpc __P((register struct vnode *,struct uio *,struct ucred *)); 5713305Sphkint nfs_asyncio __P((struct buf *,struct ucred *)); 5723305Sphkint nfs_doio __P((struct buf *,struct ucred *,struct proc *)); 5733305Sphkint nfs_readlinkrpc __P((struct vnode *,struct uio *,struct ucred *)); 5743305Sphkint nfs_sigintr __P((struct nfsmount *,struct nfsreq *r,struct proc *)); 5759336Sdfrint nfs_readdirplusrpc __P((struct vnode *,register struct uio *,struct ucred *)); 5763305Sphkint nfsm_disct __P((struct mbuf **,caddr_t *,int,int,caddr_t *)); 5779336Sdfrvoid nfsm_srvfattr __P((struct nfsrv_descript *,struct vattr *,struct nfs_fattr *)); 5789336Sdfrvoid nfsm_srvwcc __P((struct nfsrv_descript *,int,struct vattr *,int,struct vattr *,struct mbuf **,char **)); 5799336Sdfrvoid nfsm_srvpostopattr __P((struct nfsrv_descript *,int,struct vattr *,struct mbuf **,char **)); 5803305Sphkint netaddr_match __P((int,union nethostaddr *,struct mbuf *)); 5813305Sphkint nfs_request __P((struct vnode *,struct mbuf *,int,struct proc *,struct ucred *,struct mbuf **,struct mbuf **,caddr_t *)); 5823305Sphkint nfs_loadattrcache __P((struct vnode **,struct mbuf **,caddr_t *,struct vattr *)); 5839336Sdfrint nfs_namei __P((struct nameidata *,fhandle_t *,int,struct nfssvc_sock *,struct mbuf *,struct mbuf **,caddr_t *,struct vnode **,struct proc *,int)); 5843305Sphkvoid nfsm_adj __P((struct mbuf *,int,int)); 5853305Sphkint nfsm_mbuftouio __P((struct mbuf **,struct uio *,int,caddr_t *)); 5863305Sphkvoid nfsrv_initcache __P((void)); 5879336Sdfrint nfs_getauth __P((struct nfsmount *,struct nfsreq *,struct ucred *,char **,int *,char *,int *,NFSKERBKEY_T)); 5889336Sdfrint nfs_getnickauth __P((struct nfsmount *,struct ucred *,char **,int *,char *,int)); 5899336Sdfrint nfs_savenickauth __P((struct nfsmount *,struct ucred *,int,NFSKERBKEY_T,struct mbuf **,char **,struct mbuf *)); 5903305Sphkint nfs_adv __P((struct mbuf **,caddr_t *,int,int)); 5913305Sphkvoid nfs_nhinit __P((void)); 5923305Sphkvoid nfs_timer __P((void*)); 5939336Sdfru_long nfs_hash __P((nfsfh_t *,int)); 5949336Sdfrint nfsrv_dorec __P((struct nfssvc_sock *,struct nfsd *,struct nfsrv_descript **)); 5959336Sdfrint nfsrv_getcache __P((struct nfsrv_descript *,struct nfssvc_sock *,struct mbuf **)); 5969336Sdfrvoid nfsrv_updatecache __P((struct nfsrv_descript *,int,struct mbuf *)); 59722521Sdysonvoid nfsrv_cleancache __P((void)); 5983305Sphkint nfs_connect __P((struct nfsmount *,struct nfsreq *)); 59922521Sdysonvoid nfs_disconnect __P((struct nfsmount *)); 6003305Sphkint nfs_getattrcache __P((struct vnode *,struct vattr *)); 6013305Sphkint nfsm_strtmbuf __P((struct mbuf **,char **,char *,long)); 6023305Sphkint nfs_bioread __P((struct vnode *,struct uio *,int,struct ucred *)); 6033305Sphkint nfsm_uiotombuf __P((struct uio *,struct mbuf **,int,caddr_t *)); 6043305Sphkvoid nfsrv_init __P((int)); 6059336Sdfrvoid nfs_clearcommit __P((struct mount *)); 6069336Sdfrint nfsrv_errmap __P((struct nfsrv_descript *, int)); 6079336Sdfrvoid nfsrvw_sort __P((gid_t [],int)); 6089336Sdfrvoid nfsrv_setcred __P((struct ucred *,struct ucred *)); 6099336Sdfrint nfs_writebp __P((struct buf *,int)); 61017761Sdysonint nfsrv_object_create __P(( struct vnode * )); 61112588Sbdevoid nfsrv_wakenfsd __P((struct nfssvc_sock *slp)); 6129336Sdfrint nfsrv_writegather __P((struct nfsrv_descript **, struct nfssvc_sock *, 6139336Sdfr struct proc *, struct mbuf **)); 6149336Sdfrint nfs_fsinfo __P((struct nfsmount *, struct vnode *, struct ucred *, 6159336Sdfr struct proc *p)); 6166361Sphk 61712588Sbdeint nfsrv3_access __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 61812588Sbde struct proc *procp, struct mbuf **mrq)); 61912588Sbdeint nfsrv_commit __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 62012588Sbde struct proc *procp, struct mbuf **mrq)); 62112588Sbdeint nfsrv_create __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 62212588Sbde struct proc *procp, struct mbuf **mrq)); 62312911Sphkint nfsrv_fhtovp __P((fhandle_t *,int,struct vnode **, 62412911Sphk struct ucred *,struct nfssvc_sock *,struct mbuf *, 62512911Sphk int *,int)); 62612588Sbdeint nfsrv_fsinfo __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 62712588Sbde struct proc *procp, struct mbuf **mrq)); 62812588Sbdeint nfsrv_getattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 62912588Sbde struct proc *procp, struct mbuf **mrq)); 63012588Sbdeint nfsrv_link __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 63112588Sbde struct proc *procp, struct mbuf **mrq)); 63212588Sbdeint nfsrv_lookup __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 63312588Sbde struct proc *procp, struct mbuf **mrq)); 63412588Sbdeint nfsrv_mkdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 63512588Sbde struct proc *procp, struct mbuf **mrq)); 63612588Sbdeint nfsrv_mknod __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 63712588Sbde struct proc *procp, struct mbuf **mrq)); 63812588Sbdeint nfsrv_noop __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 63912588Sbde struct proc *procp, struct mbuf **mrq)); 64012588Sbdeint nfsrv_null __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 64112588Sbde struct proc *procp, struct mbuf **mrq)); 64212588Sbdeint nfsrv_pathconf __P((struct nfsrv_descript *nfsd, 64312588Sbde struct nfssvc_sock *slp, struct proc *procp, 64412588Sbde struct mbuf **mrq)); 64512588Sbdeint nfsrv_read __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 64612588Sbde struct proc *procp, struct mbuf **mrq)); 64712588Sbdeint nfsrv_readdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 64812588Sbde struct proc *procp, struct mbuf **mrq)); 64912588Sbdeint nfsrv_readdirplus __P((struct nfsrv_descript *nfsd, 65012588Sbde struct nfssvc_sock *slp, struct proc *procp, 65112588Sbde struct mbuf **mrq)); 65212588Sbdeint nfsrv_readlink __P((struct nfsrv_descript *nfsd, 65312588Sbde struct nfssvc_sock *slp, struct proc *procp, 65412588Sbde struct mbuf **mrq)); 65512588Sbdeint nfsrv_remove __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 65612588Sbde struct proc *procp, struct mbuf **mrq)); 65712588Sbdeint nfsrv_rename __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 65812588Sbde struct proc *procp, struct mbuf **mrq)); 65912588Sbdeint nfsrv_rmdir __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 66012588Sbde struct proc *procp, struct mbuf **mrq)); 66112588Sbdeint nfsrv_setattr __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 66212588Sbde struct proc *procp, struct mbuf **mrq)); 66312588Sbdeint nfsrv_statfs __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 66412588Sbde struct proc *procp, struct mbuf **mrq)); 66512588Sbdeint nfsrv_symlink __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 66612588Sbde struct proc *procp, struct mbuf **mrq)); 66712588Sbdeint nfsrv_write __P((struct nfsrv_descript *nfsd, struct nfssvc_sock *slp, 66812588Sbde struct proc *procp, struct mbuf **mrq)); 66922521Sdysonvoid nfsrv_rcv __P((struct socket *so, caddr_t arg, int waitflag)); 67022521Sdysonvoid nfsrv_slpderef __P((struct nfssvc_sock *slp)); 6711541Srgrimes#endif /* KERNEL */ 6722175Spaul 6732175Spaul#endif 674