nfs_srvsubs.c revision 13416
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1989, 1993 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 * 361541Srgrimes * @(#)nfs_subs.c 8.3 (Berkeley) 1/4/94 3713416Sphk * $Id: nfs_subs.c,v 1.26 1995/12/17 21:12:30 phk Exp $ 381541Srgrimes */ 391541Srgrimes 401541Srgrimes/* 411541Srgrimes * These functions support the macros and help fiddle mbuf chains for 421541Srgrimes * the nfs op functions. They do things like create the rpc header and 431541Srgrimes * copy data between mbuf chains and uio lists. 441541Srgrimes */ 451541Srgrimes#include <sys/param.h> 461541Srgrimes#include <sys/proc.h> 471541Srgrimes#include <sys/systm.h> 481541Srgrimes#include <sys/kernel.h> 491541Srgrimes#include <sys/mount.h> 501541Srgrimes#include <sys/vnode.h> 511541Srgrimes#include <sys/namei.h> 521541Srgrimes#include <sys/mbuf.h> 531541Srgrimes#include <sys/socket.h> 541541Srgrimes#include <sys/stat.h> 559336Sdfr#include <sys/malloc.h> 562997Swollman#ifdef VFS_LKM 572997Swollman#include <sys/sysent.h> 582997Swollman#include <sys/syscall.h> 592997Swollman#endif 601541Srgrimes 613305Sphk#include <vm/vm.h> 6212662Sdg#include <vm/vm_param.h> 6312662Sdg#include <vm/vm_object.h> 6412662Sdg#include <vm/vm_extern.h> 659507Sdg#include <vm/vnode_pager.h> 663305Sphk 671541Srgrimes#include <nfs/rpcv2.h> 689336Sdfr#include <nfs/nfsproto.h> 691541Srgrimes#include <nfs/nfsnode.h> 701541Srgrimes#include <nfs/nfs.h> 711541Srgrimes#include <nfs/xdr_subs.h> 721541Srgrimes#include <nfs/nfsm_subs.h> 731541Srgrimes#include <nfs/nfsmount.h> 741541Srgrimes#include <nfs/nqnfs.h> 751541Srgrimes#include <nfs/nfsrtt.h> 761541Srgrimes 771541Srgrimes#include <miscfs/specfs/specdev.h> 781541Srgrimes 791541Srgrimes#include <netinet/in.h> 801541Srgrimes#ifdef ISO 811541Srgrimes#include <netiso/iso.h> 821541Srgrimes#endif 831541Srgrimes 841541Srgrimes/* 851541Srgrimes * Data items converted to xdr at startup, since they are constant 861541Srgrimes * This is kinda hokey, but may save a little time doing byte swaps 871541Srgrimes */ 881541Srgrimesu_long nfs_xdrneg1; 891541Srgrimesu_long rpc_call, rpc_vers, rpc_reply, rpc_msgdenied, rpc_autherr, 909336Sdfr rpc_mismatch, rpc_auth_unix, rpc_msgaccepted, 911541Srgrimes rpc_auth_kerb; 929336Sdfru_long nfs_prog, nqnfs_prog, nfs_true, nfs_false; 931541Srgrimes 941541Srgrimes/* And other global data */ 951541Srgrimesstatic u_long nfs_xid = 0; 9612911Sphkstatic enum vtype nv2tov_type[8]= { 9712911Sphk VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON 9812911Sphk}; 9912911Sphkenum vtype nv3tov_type[8]= { 10012911Sphk VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO 10112911Sphk}; 10212911Sphk 1039336Sdfrint nfs_ticks; 1049336Sdfr 1059759Sbdestruct nfs_reqq nfs_reqq; 1069759Sbdestruct nfssvc_sockhead nfssvc_sockhead; 1079759Sbdeint nfssvc_sockhead_flag; 1089759Sbdestruct nfsd_head nfsd_head; 1099759Sbdeint nfsd_head_flag; 1109759Sbdestruct nfs_bufq nfs_bufq; 1119759Sbdestruct nqtimerhead nqtimerhead; 1129759Sbdestruct nqfhhashhead *nqfhhashtbl; 1139759Sbdeu_long nqfhhash; 1149759Sbde 11513416Sphk#ifndef NFS_NOSERVER 1169336Sdfr/* 1179336Sdfr * Mapping of old NFS Version 2 RPC numbers to generic numbers. 1189336Sdfr */ 1199336Sdfrint nfsv3_procid[NFS_NPROCS] = { 1209336Sdfr NFSPROC_NULL, 1219336Sdfr NFSPROC_GETATTR, 1229336Sdfr NFSPROC_SETATTR, 1239336Sdfr NFSPROC_NOOP, 1249336Sdfr NFSPROC_LOOKUP, 1259336Sdfr NFSPROC_READLINK, 1269336Sdfr NFSPROC_READ, 1279336Sdfr NFSPROC_NOOP, 1289336Sdfr NFSPROC_WRITE, 1299336Sdfr NFSPROC_CREATE, 1309336Sdfr NFSPROC_REMOVE, 1319336Sdfr NFSPROC_RENAME, 1329336Sdfr NFSPROC_LINK, 1339336Sdfr NFSPROC_SYMLINK, 1349336Sdfr NFSPROC_MKDIR, 1359336Sdfr NFSPROC_RMDIR, 1369336Sdfr NFSPROC_READDIR, 1379336Sdfr NFSPROC_FSSTAT, 1389336Sdfr NFSPROC_NOOP, 1399336Sdfr NFSPROC_NOOP, 1409336Sdfr NFSPROC_NOOP, 1419336Sdfr NFSPROC_NOOP, 1429336Sdfr NFSPROC_NOOP, 1439336Sdfr NFSPROC_NOOP, 1449336Sdfr NFSPROC_NOOP, 1459336Sdfr NFSPROC_NOOP 1469336Sdfr}; 1479336Sdfr 14813416Sphk#endif /* NFS_NOSERVER */ 1499336Sdfr/* 1509336Sdfr * and the reverse mapping from generic to Version 2 procedure numbers 1519336Sdfr */ 1529336Sdfrint nfsv2_procid[NFS_NPROCS] = { 1539336Sdfr NFSV2PROC_NULL, 1549336Sdfr NFSV2PROC_GETATTR, 1559336Sdfr NFSV2PROC_SETATTR, 1569336Sdfr NFSV2PROC_LOOKUP, 1579336Sdfr NFSV2PROC_NOOP, 1589336Sdfr NFSV2PROC_READLINK, 1599336Sdfr NFSV2PROC_READ, 1609336Sdfr NFSV2PROC_WRITE, 1619336Sdfr NFSV2PROC_CREATE, 1629336Sdfr NFSV2PROC_MKDIR, 1639336Sdfr NFSV2PROC_SYMLINK, 1649336Sdfr NFSV2PROC_CREATE, 1659336Sdfr NFSV2PROC_REMOVE, 1669336Sdfr NFSV2PROC_RMDIR, 1679336Sdfr NFSV2PROC_RENAME, 1689336Sdfr NFSV2PROC_LINK, 1699336Sdfr NFSV2PROC_READDIR, 1709336Sdfr NFSV2PROC_NOOP, 1719336Sdfr NFSV2PROC_STATFS, 1729336Sdfr NFSV2PROC_NOOP, 1739336Sdfr NFSV2PROC_NOOP, 1749336Sdfr NFSV2PROC_NOOP, 1759336Sdfr NFSV2PROC_NOOP, 1769336Sdfr NFSV2PROC_NOOP, 1779336Sdfr NFSV2PROC_NOOP, 1789336Sdfr NFSV2PROC_NOOP, 1799336Sdfr}; 1809336Sdfr 18113416Sphk#ifndef NFS_NOSERVER 1829336Sdfr/* 1839336Sdfr * Maps errno values to nfs error numbers. 1849336Sdfr * Use NFSERR_IO as the catch all for ones not specifically defined in 1859336Sdfr * RFC 1094. 1869336Sdfr */ 1879336Sdfrstatic u_char nfsrv_v2errmap[ELAST] = { 1889336Sdfr NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1899336Sdfr NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1909336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO, 1919336Sdfr NFSERR_IO, NFSERR_EXIST, NFSERR_IO, NFSERR_NODEV, NFSERR_NOTDIR, 1929336Sdfr NFSERR_ISDIR, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1939336Sdfr NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS, 1949336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1959336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1969336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1979336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1989336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1999336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 2009336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO, 2019336Sdfr NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE, 2029336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 2039336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 2049336Sdfr NFSERR_IO, 2059336Sdfr}; 2069336Sdfr 2079336Sdfr/* 2089336Sdfr * Maps errno values to nfs error numbers. 2099336Sdfr * Although it is not obvious whether or not NFS clients really care if 2109336Sdfr * a returned error value is in the specified list for the procedure, the 2119336Sdfr * safest thing to do is filter them appropriately. For Version 2, the 2129336Sdfr * X/Open XNFS document is the only specification that defines error values 2139336Sdfr * for each RPC (The RFC simply lists all possible error values for all RPCs), 2149336Sdfr * so I have decided to not do this for Version 2. 2159336Sdfr * The first entry is the default error return and the rest are the valid 2169336Sdfr * errors for that RPC in increasing numeric order. 2179336Sdfr */ 2189336Sdfrstatic short nfsv3err_null[] = { 2199336Sdfr 0, 2209336Sdfr 0, 2219336Sdfr}; 2229336Sdfr 2239336Sdfrstatic short nfsv3err_getattr[] = { 2249336Sdfr NFSERR_IO, 2259336Sdfr NFSERR_IO, 2269336Sdfr NFSERR_STALE, 2279336Sdfr NFSERR_BADHANDLE, 2289336Sdfr NFSERR_SERVERFAULT, 2299336Sdfr 0, 2309336Sdfr}; 2319336Sdfr 2329336Sdfrstatic short nfsv3err_setattr[] = { 2339336Sdfr NFSERR_IO, 2349336Sdfr NFSERR_PERM, 2359336Sdfr NFSERR_IO, 2369336Sdfr NFSERR_ACCES, 2379336Sdfr NFSERR_INVAL, 2389336Sdfr NFSERR_NOSPC, 2399336Sdfr NFSERR_ROFS, 2409336Sdfr NFSERR_DQUOT, 2419336Sdfr NFSERR_STALE, 2429336Sdfr NFSERR_BADHANDLE, 2439336Sdfr NFSERR_NOT_SYNC, 2449336Sdfr NFSERR_SERVERFAULT, 2459336Sdfr 0, 2469336Sdfr}; 2479336Sdfr 2489336Sdfrstatic short nfsv3err_lookup[] = { 2499336Sdfr NFSERR_IO, 2509336Sdfr NFSERR_NOENT, 2519336Sdfr NFSERR_IO, 2529336Sdfr NFSERR_ACCES, 2539336Sdfr NFSERR_NOTDIR, 2549336Sdfr NFSERR_NAMETOL, 2559336Sdfr NFSERR_STALE, 2569336Sdfr NFSERR_BADHANDLE, 2579336Sdfr NFSERR_SERVERFAULT, 2589336Sdfr 0, 2599336Sdfr}; 2609336Sdfr 2619336Sdfrstatic short nfsv3err_access[] = { 2629336Sdfr NFSERR_IO, 2639336Sdfr NFSERR_IO, 2649336Sdfr NFSERR_STALE, 2659336Sdfr NFSERR_BADHANDLE, 2669336Sdfr NFSERR_SERVERFAULT, 2679336Sdfr 0, 2689336Sdfr}; 2699336Sdfr 2709336Sdfrstatic short nfsv3err_readlink[] = { 2719336Sdfr NFSERR_IO, 2729336Sdfr NFSERR_IO, 2739336Sdfr NFSERR_ACCES, 2749336Sdfr NFSERR_INVAL, 2759336Sdfr NFSERR_STALE, 2769336Sdfr NFSERR_BADHANDLE, 2779336Sdfr NFSERR_NOTSUPP, 2789336Sdfr NFSERR_SERVERFAULT, 2799336Sdfr 0, 2809336Sdfr}; 2819336Sdfr 2829336Sdfrstatic short nfsv3err_read[] = { 2839336Sdfr NFSERR_IO, 2849336Sdfr NFSERR_IO, 2859336Sdfr NFSERR_NXIO, 2869336Sdfr NFSERR_ACCES, 2879336Sdfr NFSERR_INVAL, 2889336Sdfr NFSERR_STALE, 2899336Sdfr NFSERR_BADHANDLE, 2909336Sdfr NFSERR_SERVERFAULT, 2919336Sdfr 0, 2929336Sdfr}; 2939336Sdfr 2949336Sdfrstatic short nfsv3err_write[] = { 2959336Sdfr NFSERR_IO, 2969336Sdfr NFSERR_IO, 2979336Sdfr NFSERR_ACCES, 2989336Sdfr NFSERR_INVAL, 2999336Sdfr NFSERR_FBIG, 3009336Sdfr NFSERR_NOSPC, 3019336Sdfr NFSERR_ROFS, 3029336Sdfr NFSERR_DQUOT, 3039336Sdfr NFSERR_STALE, 3049336Sdfr NFSERR_BADHANDLE, 3059336Sdfr NFSERR_SERVERFAULT, 3069336Sdfr 0, 3079336Sdfr}; 3089336Sdfr 3099336Sdfrstatic short nfsv3err_create[] = { 3109336Sdfr NFSERR_IO, 3119336Sdfr NFSERR_IO, 3129336Sdfr NFSERR_ACCES, 3139336Sdfr NFSERR_EXIST, 3149336Sdfr NFSERR_NOTDIR, 3159336Sdfr NFSERR_NOSPC, 3169336Sdfr NFSERR_ROFS, 3179336Sdfr NFSERR_NAMETOL, 3189336Sdfr NFSERR_DQUOT, 3199336Sdfr NFSERR_STALE, 3209336Sdfr NFSERR_BADHANDLE, 3219336Sdfr NFSERR_NOTSUPP, 3229336Sdfr NFSERR_SERVERFAULT, 3239336Sdfr 0, 3249336Sdfr}; 3259336Sdfr 3269336Sdfrstatic short nfsv3err_mkdir[] = { 3279336Sdfr NFSERR_IO, 3289336Sdfr NFSERR_IO, 3299336Sdfr NFSERR_ACCES, 3309336Sdfr NFSERR_EXIST, 3319336Sdfr NFSERR_NOTDIR, 3329336Sdfr NFSERR_NOSPC, 3339336Sdfr NFSERR_ROFS, 3349336Sdfr NFSERR_NAMETOL, 3359336Sdfr NFSERR_DQUOT, 3369336Sdfr NFSERR_STALE, 3379336Sdfr NFSERR_BADHANDLE, 3389336Sdfr NFSERR_NOTSUPP, 3399336Sdfr NFSERR_SERVERFAULT, 3409336Sdfr 0, 3419336Sdfr}; 3429336Sdfr 3439336Sdfrstatic short nfsv3err_symlink[] = { 3449336Sdfr NFSERR_IO, 3459336Sdfr NFSERR_IO, 3469336Sdfr NFSERR_ACCES, 3479336Sdfr NFSERR_EXIST, 3489336Sdfr NFSERR_NOTDIR, 3499336Sdfr NFSERR_NOSPC, 3509336Sdfr NFSERR_ROFS, 3519336Sdfr NFSERR_NAMETOL, 3529336Sdfr NFSERR_DQUOT, 3539336Sdfr NFSERR_STALE, 3549336Sdfr NFSERR_BADHANDLE, 3559336Sdfr NFSERR_NOTSUPP, 3569336Sdfr NFSERR_SERVERFAULT, 3579336Sdfr 0, 3589336Sdfr}; 3599336Sdfr 3609336Sdfrstatic short nfsv3err_mknod[] = { 3619336Sdfr NFSERR_IO, 3629336Sdfr NFSERR_IO, 3639336Sdfr NFSERR_ACCES, 3649336Sdfr NFSERR_EXIST, 3659336Sdfr NFSERR_NOTDIR, 3669336Sdfr NFSERR_NOSPC, 3679336Sdfr NFSERR_ROFS, 3689336Sdfr NFSERR_NAMETOL, 3699336Sdfr NFSERR_DQUOT, 3709336Sdfr NFSERR_STALE, 3719336Sdfr NFSERR_BADHANDLE, 3729336Sdfr NFSERR_NOTSUPP, 3739336Sdfr NFSERR_SERVERFAULT, 3749336Sdfr NFSERR_BADTYPE, 3759336Sdfr 0, 3769336Sdfr}; 3779336Sdfr 3789336Sdfrstatic short nfsv3err_remove[] = { 3799336Sdfr NFSERR_IO, 3809336Sdfr NFSERR_NOENT, 3819336Sdfr NFSERR_IO, 3829336Sdfr NFSERR_ACCES, 3839336Sdfr NFSERR_NOTDIR, 3849336Sdfr NFSERR_ROFS, 3859336Sdfr NFSERR_NAMETOL, 3869336Sdfr NFSERR_STALE, 3879336Sdfr NFSERR_BADHANDLE, 3889336Sdfr NFSERR_SERVERFAULT, 3899336Sdfr 0, 3909336Sdfr}; 3919336Sdfr 3929336Sdfrstatic short nfsv3err_rmdir[] = { 3939336Sdfr NFSERR_IO, 3949336Sdfr NFSERR_NOENT, 3959336Sdfr NFSERR_IO, 3969336Sdfr NFSERR_ACCES, 3979336Sdfr NFSERR_EXIST, 3989336Sdfr NFSERR_NOTDIR, 3999336Sdfr NFSERR_INVAL, 4009336Sdfr NFSERR_ROFS, 4019336Sdfr NFSERR_NAMETOL, 4029336Sdfr NFSERR_NOTEMPTY, 4039336Sdfr NFSERR_STALE, 4049336Sdfr NFSERR_BADHANDLE, 4059336Sdfr NFSERR_NOTSUPP, 4069336Sdfr NFSERR_SERVERFAULT, 4079336Sdfr 0, 4089336Sdfr}; 4099336Sdfr 4109336Sdfrstatic short nfsv3err_rename[] = { 4119336Sdfr NFSERR_IO, 4129336Sdfr NFSERR_NOENT, 4139336Sdfr NFSERR_IO, 4149336Sdfr NFSERR_ACCES, 4159336Sdfr NFSERR_EXIST, 4169336Sdfr NFSERR_XDEV, 4179336Sdfr NFSERR_NOTDIR, 4189336Sdfr NFSERR_ISDIR, 4199336Sdfr NFSERR_INVAL, 4209336Sdfr NFSERR_NOSPC, 4219336Sdfr NFSERR_ROFS, 4229336Sdfr NFSERR_MLINK, 4239336Sdfr NFSERR_NAMETOL, 4249336Sdfr NFSERR_NOTEMPTY, 4259336Sdfr NFSERR_DQUOT, 4269336Sdfr NFSERR_STALE, 4279336Sdfr NFSERR_BADHANDLE, 4289336Sdfr NFSERR_NOTSUPP, 4299336Sdfr NFSERR_SERVERFAULT, 4309336Sdfr 0, 4319336Sdfr}; 4329336Sdfr 4339336Sdfrstatic short nfsv3err_link[] = { 4349336Sdfr NFSERR_IO, 4359336Sdfr NFSERR_IO, 4369336Sdfr NFSERR_ACCES, 4379336Sdfr NFSERR_EXIST, 4389336Sdfr NFSERR_XDEV, 4399336Sdfr NFSERR_NOTDIR, 4409336Sdfr NFSERR_INVAL, 4419336Sdfr NFSERR_NOSPC, 4429336Sdfr NFSERR_ROFS, 4439336Sdfr NFSERR_MLINK, 4449336Sdfr NFSERR_NAMETOL, 4459336Sdfr NFSERR_DQUOT, 4469336Sdfr NFSERR_STALE, 4479336Sdfr NFSERR_BADHANDLE, 4489336Sdfr NFSERR_NOTSUPP, 4499336Sdfr NFSERR_SERVERFAULT, 4509336Sdfr 0, 4519336Sdfr}; 4529336Sdfr 4539336Sdfrstatic short nfsv3err_readdir[] = { 4549336Sdfr NFSERR_IO, 4559336Sdfr NFSERR_IO, 4569336Sdfr NFSERR_ACCES, 4579336Sdfr NFSERR_NOTDIR, 4589336Sdfr NFSERR_STALE, 4599336Sdfr NFSERR_BADHANDLE, 4609336Sdfr NFSERR_BAD_COOKIE, 4619336Sdfr NFSERR_TOOSMALL, 4629336Sdfr NFSERR_SERVERFAULT, 4639336Sdfr 0, 4649336Sdfr}; 4659336Sdfr 4669336Sdfrstatic short nfsv3err_readdirplus[] = { 4679336Sdfr NFSERR_IO, 4689336Sdfr NFSERR_IO, 4699336Sdfr NFSERR_ACCES, 4709336Sdfr NFSERR_NOTDIR, 4719336Sdfr NFSERR_STALE, 4729336Sdfr NFSERR_BADHANDLE, 4739336Sdfr NFSERR_BAD_COOKIE, 4749336Sdfr NFSERR_NOTSUPP, 4759336Sdfr NFSERR_TOOSMALL, 4769336Sdfr NFSERR_SERVERFAULT, 4779336Sdfr 0, 4789336Sdfr}; 4799336Sdfr 4809336Sdfrstatic short nfsv3err_fsstat[] = { 4819336Sdfr NFSERR_IO, 4829336Sdfr NFSERR_IO, 4839336Sdfr NFSERR_STALE, 4849336Sdfr NFSERR_BADHANDLE, 4859336Sdfr NFSERR_SERVERFAULT, 4869336Sdfr 0, 4879336Sdfr}; 4889336Sdfr 4899336Sdfrstatic short nfsv3err_fsinfo[] = { 4909336Sdfr NFSERR_STALE, 4919336Sdfr NFSERR_STALE, 4929336Sdfr NFSERR_BADHANDLE, 4939336Sdfr NFSERR_SERVERFAULT, 4949336Sdfr 0, 4959336Sdfr}; 4969336Sdfr 4979336Sdfrstatic short nfsv3err_pathconf[] = { 4989336Sdfr NFSERR_STALE, 4999336Sdfr NFSERR_STALE, 5009336Sdfr NFSERR_BADHANDLE, 5019336Sdfr NFSERR_SERVERFAULT, 5029336Sdfr 0, 5039336Sdfr}; 5049336Sdfr 5059336Sdfrstatic short nfsv3err_commit[] = { 5069336Sdfr NFSERR_IO, 5079336Sdfr NFSERR_IO, 5089336Sdfr NFSERR_STALE, 5099336Sdfr NFSERR_BADHANDLE, 5109336Sdfr NFSERR_SERVERFAULT, 5119336Sdfr 0, 5129336Sdfr}; 5139336Sdfr 5149336Sdfrstatic short *nfsrv_v3errmap[] = { 5159336Sdfr nfsv3err_null, 5169336Sdfr nfsv3err_getattr, 5179336Sdfr nfsv3err_setattr, 5189336Sdfr nfsv3err_lookup, 5199336Sdfr nfsv3err_access, 5209336Sdfr nfsv3err_readlink, 5219336Sdfr nfsv3err_read, 5229336Sdfr nfsv3err_write, 5239336Sdfr nfsv3err_create, 5249336Sdfr nfsv3err_mkdir, 5259336Sdfr nfsv3err_symlink, 5269336Sdfr nfsv3err_mknod, 5279336Sdfr nfsv3err_remove, 5289336Sdfr nfsv3err_rmdir, 5299336Sdfr nfsv3err_rename, 5309336Sdfr nfsv3err_link, 5319336Sdfr nfsv3err_readdir, 5329336Sdfr nfsv3err_readdirplus, 5339336Sdfr nfsv3err_fsstat, 5349336Sdfr nfsv3err_fsinfo, 5359336Sdfr nfsv3err_pathconf, 5369336Sdfr nfsv3err_commit, 5379336Sdfr}; 5389336Sdfr 53913416Sphk#endif /* NFS_NOSERVER */ 54013416Sphk 5411541Srgrimesextern struct proc *nfs_iodwant[NFS_MAXASYNCDAEMON]; 5421541Srgrimesextern struct nfsrtt nfsrtt; 5431541Srgrimesextern time_t nqnfsstarttime; 5441541Srgrimesextern int nqsrv_clockskew; 5451541Srgrimesextern int nqsrv_writeslack; 5461541Srgrimesextern int nqsrv_maxlease; 5479336Sdfrextern struct nfsstats nfsstats; 5489336Sdfrextern int nqnfs_piggy[NFS_NPROCS]; 5499336Sdfrextern nfstype nfsv2_type[9]; 5509336Sdfrextern nfstype nfsv3_type[9]; 5519336Sdfrextern struct nfsnodehashhead *nfsnodehashtbl; 5529336Sdfrextern u_long nfsnodehash; 5531541Srgrimes 5542997Swollman#ifdef VFS_LKM 5552997Swollmanstruct getfh_args; 5562997Swollmanextern int getfh(struct proc *, struct getfh_args *, int *); 5572997Swollmanstruct nfssvc_args; 5582997Swollmanextern int nfssvc(struct proc *, struct nfssvc_args *, int *); 5592997Swollman#endif 5602997Swollman 5613664SphkLIST_HEAD(nfsnodehashhead, nfsnode); 5623664Sphk 5631541Srgrimes/* 5641541Srgrimes * Create the header for an rpc request packet 5651541Srgrimes * The hsiz is the size of the rest of the nfs request header. 5661541Srgrimes * (just used to decide if a cluster is a good idea) 5671541Srgrimes */ 5681541Srgrimesstruct mbuf * 5691541Srgrimesnfsm_reqh(vp, procid, hsiz, bposp) 5701541Srgrimes struct vnode *vp; 5711541Srgrimes u_long procid; 5721541Srgrimes int hsiz; 5731541Srgrimes caddr_t *bposp; 5741541Srgrimes{ 5751541Srgrimes register struct mbuf *mb; 5761541Srgrimes register u_long *tl; 5771541Srgrimes register caddr_t bpos; 5781541Srgrimes struct mbuf *mb2; 5791541Srgrimes struct nfsmount *nmp; 5801541Srgrimes int nqflag; 5811541Srgrimes 5821541Srgrimes MGET(mb, M_WAIT, MT_DATA); 5831541Srgrimes if (hsiz >= MINCLSIZE) 5841541Srgrimes MCLGET(mb, M_WAIT); 5851541Srgrimes mb->m_len = 0; 5861541Srgrimes bpos = mtod(mb, caddr_t); 5878876Srgrimes 5881541Srgrimes /* 5891541Srgrimes * For NQNFS, add lease request. 5901541Srgrimes */ 5911541Srgrimes if (vp) { 5921541Srgrimes nmp = VFSTONFS(vp->v_mount); 5931541Srgrimes if (nmp->nm_flag & NFSMNT_NQNFS) { 5941541Srgrimes nqflag = NQNFS_NEEDLEASE(vp, procid); 5951541Srgrimes if (nqflag) { 5961541Srgrimes nfsm_build(tl, u_long *, 2*NFSX_UNSIGNED); 5971541Srgrimes *tl++ = txdr_unsigned(nqflag); 5981541Srgrimes *tl = txdr_unsigned(nmp->nm_leaseterm); 5991541Srgrimes } else { 6001541Srgrimes nfsm_build(tl, u_long *, NFSX_UNSIGNED); 6011541Srgrimes *tl = 0; 6021541Srgrimes } 6031541Srgrimes } 6041541Srgrimes } 6051541Srgrimes /* Finally, return values */ 6061541Srgrimes *bposp = bpos; 6071541Srgrimes return (mb); 6081541Srgrimes} 6091541Srgrimes 6101541Srgrimes/* 6111541Srgrimes * Build the RPC header and fill in the authorization info. 6121541Srgrimes * The authorization string argument is only used when the credentials 6131541Srgrimes * come from outside of the kernel. 6141541Srgrimes * Returns the head of the mbuf list. 6151541Srgrimes */ 6161541Srgrimesstruct mbuf * 6179336Sdfrnfsm_rpchead(cr, nmflag, procid, auth_type, auth_len, auth_str, verf_len, 6189336Sdfr verf_str, mrest, mrest_len, mbp, xidp) 6191541Srgrimes register struct ucred *cr; 6209336Sdfr int nmflag; 6211541Srgrimes int procid; 6221541Srgrimes int auth_type; 6231541Srgrimes int auth_len; 6241541Srgrimes char *auth_str; 6259336Sdfr int verf_len; 6269336Sdfr char *verf_str; 6271541Srgrimes struct mbuf *mrest; 6281541Srgrimes int mrest_len; 6291541Srgrimes struct mbuf **mbp; 6301541Srgrimes u_long *xidp; 6311541Srgrimes{ 6321541Srgrimes register struct mbuf *mb; 6331541Srgrimes register u_long *tl; 6341541Srgrimes register caddr_t bpos; 6351541Srgrimes register int i; 6361541Srgrimes struct mbuf *mreq, *mb2; 6371541Srgrimes int siz, grpsiz, authsiz; 6381541Srgrimes 6391541Srgrimes authsiz = nfsm_rndup(auth_len); 6401541Srgrimes MGETHDR(mb, M_WAIT, MT_DATA); 6419336Sdfr if ((authsiz + 10 * NFSX_UNSIGNED) >= MINCLSIZE) { 6421541Srgrimes MCLGET(mb, M_WAIT); 6439336Sdfr } else if ((authsiz + 10 * NFSX_UNSIGNED) < MHLEN) { 6449336Sdfr MH_ALIGN(mb, authsiz + 10 * NFSX_UNSIGNED); 6451541Srgrimes } else { 6469336Sdfr MH_ALIGN(mb, 8 * NFSX_UNSIGNED); 6471541Srgrimes } 6481541Srgrimes mb->m_len = 0; 6491541Srgrimes mreq = mb; 6501541Srgrimes bpos = mtod(mb, caddr_t); 6511541Srgrimes 6521541Srgrimes /* 6531541Srgrimes * First the RPC header. 6541541Srgrimes */ 6559336Sdfr nfsm_build(tl, u_long *, 8 * NFSX_UNSIGNED); 6561541Srgrimes if (++nfs_xid == 0) 6571541Srgrimes nfs_xid++; 6581541Srgrimes *tl++ = *xidp = txdr_unsigned(nfs_xid); 6591541Srgrimes *tl++ = rpc_call; 6601541Srgrimes *tl++ = rpc_vers; 6619336Sdfr if (nmflag & NFSMNT_NQNFS) { 6621541Srgrimes *tl++ = txdr_unsigned(NQNFS_PROG); 6639336Sdfr *tl++ = txdr_unsigned(NQNFS_VER3); 6641541Srgrimes } else { 6651541Srgrimes *tl++ = txdr_unsigned(NFS_PROG); 6669336Sdfr if (nmflag & NFSMNT_NFSV3) 6679336Sdfr *tl++ = txdr_unsigned(NFS_VER3); 6689336Sdfr else 6699336Sdfr *tl++ = txdr_unsigned(NFS_VER2); 6701541Srgrimes } 6719336Sdfr if (nmflag & NFSMNT_NFSV3) 6729336Sdfr *tl++ = txdr_unsigned(procid); 6739336Sdfr else 6749336Sdfr *tl++ = txdr_unsigned(nfsv2_procid[procid]); 6751541Srgrimes 6761541Srgrimes /* 6771541Srgrimes * And then the authorization cred. 6781541Srgrimes */ 6791541Srgrimes *tl++ = txdr_unsigned(auth_type); 6801541Srgrimes *tl = txdr_unsigned(authsiz); 6811541Srgrimes switch (auth_type) { 6821541Srgrimes case RPCAUTH_UNIX: 6831541Srgrimes nfsm_build(tl, u_long *, auth_len); 6841541Srgrimes *tl++ = 0; /* stamp ?? */ 6851541Srgrimes *tl++ = 0; /* NULL hostname */ 6861541Srgrimes *tl++ = txdr_unsigned(cr->cr_uid); 6871541Srgrimes *tl++ = txdr_unsigned(cr->cr_groups[0]); 6881541Srgrimes grpsiz = (auth_len >> 2) - 5; 6891541Srgrimes *tl++ = txdr_unsigned(grpsiz); 6901541Srgrimes for (i = 1; i <= grpsiz; i++) 6911541Srgrimes *tl++ = txdr_unsigned(cr->cr_groups[i]); 6921541Srgrimes break; 6939336Sdfr case RPCAUTH_KERB4: 6941541Srgrimes siz = auth_len; 6951541Srgrimes while (siz > 0) { 6961541Srgrimes if (M_TRAILINGSPACE(mb) == 0) { 6971541Srgrimes MGET(mb2, M_WAIT, MT_DATA); 6981541Srgrimes if (siz >= MINCLSIZE) 6991541Srgrimes MCLGET(mb2, M_WAIT); 7001541Srgrimes mb->m_next = mb2; 7011541Srgrimes mb = mb2; 7021541Srgrimes mb->m_len = 0; 7031541Srgrimes bpos = mtod(mb, caddr_t); 7041541Srgrimes } 7051541Srgrimes i = min(siz, M_TRAILINGSPACE(mb)); 7061541Srgrimes bcopy(auth_str, bpos, i); 7071541Srgrimes mb->m_len += i; 7081541Srgrimes auth_str += i; 7091541Srgrimes bpos += i; 7101541Srgrimes siz -= i; 7111541Srgrimes } 7121541Srgrimes if ((siz = (nfsm_rndup(auth_len) - auth_len)) > 0) { 7131541Srgrimes for (i = 0; i < siz; i++) 7141541Srgrimes *bpos++ = '\0'; 7151541Srgrimes mb->m_len += siz; 7161541Srgrimes } 7171541Srgrimes break; 7181541Srgrimes }; 7199336Sdfr 7209336Sdfr /* 7219336Sdfr * And the verifier... 7229336Sdfr */ 7239336Sdfr nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED); 7249336Sdfr if (verf_str) { 7259336Sdfr *tl++ = txdr_unsigned(RPCAUTH_KERB4); 7269336Sdfr *tl = txdr_unsigned(verf_len); 7279336Sdfr siz = verf_len; 7289336Sdfr while (siz > 0) { 7299336Sdfr if (M_TRAILINGSPACE(mb) == 0) { 7309336Sdfr MGET(mb2, M_WAIT, MT_DATA); 7319336Sdfr if (siz >= MINCLSIZE) 7329336Sdfr MCLGET(mb2, M_WAIT); 7339336Sdfr mb->m_next = mb2; 7349336Sdfr mb = mb2; 7359336Sdfr mb->m_len = 0; 7369336Sdfr bpos = mtod(mb, caddr_t); 7379336Sdfr } 7389336Sdfr i = min(siz, M_TRAILINGSPACE(mb)); 7399336Sdfr bcopy(verf_str, bpos, i); 7409336Sdfr mb->m_len += i; 7419336Sdfr verf_str += i; 7429336Sdfr bpos += i; 7439336Sdfr siz -= i; 7449336Sdfr } 7459336Sdfr if ((siz = (nfsm_rndup(verf_len) - verf_len)) > 0) { 7469336Sdfr for (i = 0; i < siz; i++) 7479336Sdfr *bpos++ = '\0'; 7489336Sdfr mb->m_len += siz; 7499336Sdfr } 7509336Sdfr } else { 7519336Sdfr *tl++ = txdr_unsigned(RPCAUTH_NULL); 7529336Sdfr *tl = 0; 7539336Sdfr } 7541541Srgrimes mb->m_next = mrest; 7559336Sdfr mreq->m_pkthdr.len = authsiz + 10 * NFSX_UNSIGNED + mrest_len; 7561541Srgrimes mreq->m_pkthdr.rcvif = (struct ifnet *)0; 7571541Srgrimes *mbp = mb; 7581541Srgrimes return (mreq); 7591541Srgrimes} 7601541Srgrimes 7611541Srgrimes/* 7621541Srgrimes * copies mbuf chain to the uio scatter/gather list 7631541Srgrimes */ 7641549Srgrimesint 7651541Srgrimesnfsm_mbuftouio(mrep, uiop, siz, dpos) 7661541Srgrimes struct mbuf **mrep; 7671541Srgrimes register struct uio *uiop; 7681541Srgrimes int siz; 7691541Srgrimes caddr_t *dpos; 7701541Srgrimes{ 7711541Srgrimes register char *mbufcp, *uiocp; 7721541Srgrimes register int xfer, left, len; 7731541Srgrimes register struct mbuf *mp; 7741541Srgrimes long uiosiz, rem; 7751541Srgrimes int error = 0; 7761541Srgrimes 7771541Srgrimes mp = *mrep; 7781541Srgrimes mbufcp = *dpos; 7791541Srgrimes len = mtod(mp, caddr_t)+mp->m_len-mbufcp; 7801541Srgrimes rem = nfsm_rndup(siz)-siz; 7811541Srgrimes while (siz > 0) { 7821541Srgrimes if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) 7831541Srgrimes return (EFBIG); 7841541Srgrimes left = uiop->uio_iov->iov_len; 7851541Srgrimes uiocp = uiop->uio_iov->iov_base; 7861541Srgrimes if (left > siz) 7871541Srgrimes left = siz; 7881541Srgrimes uiosiz = left; 7891541Srgrimes while (left > 0) { 7901541Srgrimes while (len == 0) { 7911541Srgrimes mp = mp->m_next; 7921541Srgrimes if (mp == NULL) 7931541Srgrimes return (EBADRPC); 7941541Srgrimes mbufcp = mtod(mp, caddr_t); 7951541Srgrimes len = mp->m_len; 7961541Srgrimes } 7971541Srgrimes xfer = (left > len) ? len : left; 7981541Srgrimes#ifdef notdef 7991541Srgrimes /* Not Yet.. */ 8001541Srgrimes if (uiop->uio_iov->iov_op != NULL) 8011541Srgrimes (*(uiop->uio_iov->iov_op)) 8021541Srgrimes (mbufcp, uiocp, xfer); 8031541Srgrimes else 8041541Srgrimes#endif 8051541Srgrimes if (uiop->uio_segflg == UIO_SYSSPACE) 8061541Srgrimes bcopy(mbufcp, uiocp, xfer); 8071541Srgrimes else 8081541Srgrimes copyout(mbufcp, uiocp, xfer); 8091541Srgrimes left -= xfer; 8101541Srgrimes len -= xfer; 8111541Srgrimes mbufcp += xfer; 8121541Srgrimes uiocp += xfer; 8131541Srgrimes uiop->uio_offset += xfer; 8141541Srgrimes uiop->uio_resid -= xfer; 8151541Srgrimes } 8161541Srgrimes if (uiop->uio_iov->iov_len <= siz) { 8171541Srgrimes uiop->uio_iovcnt--; 8181541Srgrimes uiop->uio_iov++; 8191541Srgrimes } else { 8201541Srgrimes uiop->uio_iov->iov_base += uiosiz; 8211541Srgrimes uiop->uio_iov->iov_len -= uiosiz; 8221541Srgrimes } 8231541Srgrimes siz -= uiosiz; 8241541Srgrimes } 8251541Srgrimes *dpos = mbufcp; 8261541Srgrimes *mrep = mp; 8271541Srgrimes if (rem > 0) { 8281541Srgrimes if (len < rem) 8291541Srgrimes error = nfs_adv(mrep, dpos, rem, len); 8301541Srgrimes else 8311541Srgrimes *dpos += rem; 8321541Srgrimes } 8331541Srgrimes return (error); 8341541Srgrimes} 8351541Srgrimes 8361541Srgrimes/* 8371541Srgrimes * copies a uio scatter/gather list to an mbuf chain... 8381541Srgrimes */ 8391549Srgrimesint 8401541Srgrimesnfsm_uiotombuf(uiop, mq, siz, bpos) 8411541Srgrimes register struct uio *uiop; 8421541Srgrimes struct mbuf **mq; 8431541Srgrimes int siz; 8441541Srgrimes caddr_t *bpos; 8451541Srgrimes{ 8461541Srgrimes register char *uiocp; 8471541Srgrimes register struct mbuf *mp, *mp2; 8481541Srgrimes register int xfer, left, mlen; 8491541Srgrimes int uiosiz, clflg, rem; 8501541Srgrimes char *cp; 8511541Srgrimes 8521541Srgrimes if (siz > MLEN) /* or should it >= MCLBYTES ?? */ 8531541Srgrimes clflg = 1; 8541541Srgrimes else 8551541Srgrimes clflg = 0; 8561541Srgrimes rem = nfsm_rndup(siz)-siz; 8571541Srgrimes mp = mp2 = *mq; 8581541Srgrimes while (siz > 0) { 8591541Srgrimes if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) 8601541Srgrimes return (EINVAL); 8611541Srgrimes left = uiop->uio_iov->iov_len; 8621541Srgrimes uiocp = uiop->uio_iov->iov_base; 8631541Srgrimes if (left > siz) 8641541Srgrimes left = siz; 8651541Srgrimes uiosiz = left; 8661541Srgrimes while (left > 0) { 8671541Srgrimes mlen = M_TRAILINGSPACE(mp); 8681541Srgrimes if (mlen == 0) { 8691541Srgrimes MGET(mp, M_WAIT, MT_DATA); 8701541Srgrimes if (clflg) 8711541Srgrimes MCLGET(mp, M_WAIT); 8721541Srgrimes mp->m_len = 0; 8731541Srgrimes mp2->m_next = mp; 8741541Srgrimes mp2 = mp; 8751541Srgrimes mlen = M_TRAILINGSPACE(mp); 8761541Srgrimes } 8771541Srgrimes xfer = (left > mlen) ? mlen : left; 8781541Srgrimes#ifdef notdef 8791541Srgrimes /* Not Yet.. */ 8801541Srgrimes if (uiop->uio_iov->iov_op != NULL) 8811541Srgrimes (*(uiop->uio_iov->iov_op)) 8821541Srgrimes (uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 8831541Srgrimes else 8841541Srgrimes#endif 8851541Srgrimes if (uiop->uio_segflg == UIO_SYSSPACE) 8861541Srgrimes bcopy(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 8871541Srgrimes else 8881541Srgrimes copyin(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 8891541Srgrimes mp->m_len += xfer; 8901541Srgrimes left -= xfer; 8911541Srgrimes uiocp += xfer; 8921541Srgrimes uiop->uio_offset += xfer; 8931541Srgrimes uiop->uio_resid -= xfer; 8941541Srgrimes } 8951541Srgrimes if (uiop->uio_iov->iov_len <= siz) { 8961541Srgrimes uiop->uio_iovcnt--; 8971541Srgrimes uiop->uio_iov++; 8981541Srgrimes } else { 8991541Srgrimes uiop->uio_iov->iov_base += uiosiz; 9001541Srgrimes uiop->uio_iov->iov_len -= uiosiz; 9011541Srgrimes } 9021541Srgrimes siz -= uiosiz; 9031541Srgrimes } 9041541Srgrimes if (rem > 0) { 9051541Srgrimes if (rem > M_TRAILINGSPACE(mp)) { 9061541Srgrimes MGET(mp, M_WAIT, MT_DATA); 9071541Srgrimes mp->m_len = 0; 9081541Srgrimes mp2->m_next = mp; 9091541Srgrimes } 9101541Srgrimes cp = mtod(mp, caddr_t)+mp->m_len; 9111541Srgrimes for (left = 0; left < rem; left++) 9121541Srgrimes *cp++ = '\0'; 9131541Srgrimes mp->m_len += rem; 9141541Srgrimes *bpos = cp; 9151541Srgrimes } else 9161541Srgrimes *bpos = mtod(mp, caddr_t)+mp->m_len; 9171541Srgrimes *mq = mp; 9181541Srgrimes return (0); 9191541Srgrimes} 9201541Srgrimes 9211541Srgrimes/* 9221541Srgrimes * Help break down an mbuf chain by setting the first siz bytes contiguous 9231541Srgrimes * pointed to by returned val. 9241541Srgrimes * This is used by the macros nfsm_dissect and nfsm_dissecton for tough 9251541Srgrimes * cases. (The macros use the vars. dpos and dpos2) 9261541Srgrimes */ 9271549Srgrimesint 9281541Srgrimesnfsm_disct(mdp, dposp, siz, left, cp2) 9291541Srgrimes struct mbuf **mdp; 9301541Srgrimes caddr_t *dposp; 9311541Srgrimes int siz; 9321541Srgrimes int left; 9331541Srgrimes caddr_t *cp2; 9341541Srgrimes{ 9351541Srgrimes register struct mbuf *mp, *mp2; 9361541Srgrimes register int siz2, xfer; 9371541Srgrimes register caddr_t p; 9381541Srgrimes 9391541Srgrimes mp = *mdp; 9401541Srgrimes while (left == 0) { 9411541Srgrimes *mdp = mp = mp->m_next; 9421541Srgrimes if (mp == NULL) 9431541Srgrimes return (EBADRPC); 9441541Srgrimes left = mp->m_len; 9451541Srgrimes *dposp = mtod(mp, caddr_t); 9461541Srgrimes } 9471541Srgrimes if (left >= siz) { 9481541Srgrimes *cp2 = *dposp; 9491541Srgrimes *dposp += siz; 9501541Srgrimes } else if (mp->m_next == NULL) { 9511541Srgrimes return (EBADRPC); 9521541Srgrimes } else if (siz > MHLEN) { 9531541Srgrimes panic("nfs S too big"); 9541541Srgrimes } else { 9551541Srgrimes MGET(mp2, M_WAIT, MT_DATA); 9561541Srgrimes mp2->m_next = mp->m_next; 9571541Srgrimes mp->m_next = mp2; 9581541Srgrimes mp->m_len -= left; 9591541Srgrimes mp = mp2; 9601541Srgrimes *cp2 = p = mtod(mp, caddr_t); 9611541Srgrimes bcopy(*dposp, p, left); /* Copy what was left */ 9621541Srgrimes siz2 = siz-left; 9631541Srgrimes p += left; 9641541Srgrimes mp2 = mp->m_next; 9651541Srgrimes /* Loop around copying up the siz2 bytes */ 9661541Srgrimes while (siz2 > 0) { 9671541Srgrimes if (mp2 == NULL) 9681541Srgrimes return (EBADRPC); 9691541Srgrimes xfer = (siz2 > mp2->m_len) ? mp2->m_len : siz2; 9701541Srgrimes if (xfer > 0) { 9711541Srgrimes bcopy(mtod(mp2, caddr_t), p, xfer); 9721541Srgrimes NFSMADV(mp2, xfer); 9731541Srgrimes mp2->m_len -= xfer; 9741541Srgrimes p += xfer; 9751541Srgrimes siz2 -= xfer; 9761541Srgrimes } 9771541Srgrimes if (siz2 > 0) 9781541Srgrimes mp2 = mp2->m_next; 9791541Srgrimes } 9801541Srgrimes mp->m_len = siz; 9811541Srgrimes *mdp = mp2; 9821541Srgrimes *dposp = mtod(mp2, caddr_t); 9831541Srgrimes } 9841541Srgrimes return (0); 9851541Srgrimes} 9861541Srgrimes 9871541Srgrimes/* 9881541Srgrimes * Advance the position in the mbuf chain. 9891541Srgrimes */ 9901549Srgrimesint 9911541Srgrimesnfs_adv(mdp, dposp, offs, left) 9921541Srgrimes struct mbuf **mdp; 9931541Srgrimes caddr_t *dposp; 9941541Srgrimes int offs; 9951541Srgrimes int left; 9961541Srgrimes{ 9971541Srgrimes register struct mbuf *m; 9981541Srgrimes register int s; 9991541Srgrimes 10001541Srgrimes m = *mdp; 10011541Srgrimes s = left; 10021541Srgrimes while (s < offs) { 10031541Srgrimes offs -= s; 10041541Srgrimes m = m->m_next; 10051541Srgrimes if (m == NULL) 10061541Srgrimes return (EBADRPC); 10071541Srgrimes s = m->m_len; 10081541Srgrimes } 10091541Srgrimes *mdp = m; 10101541Srgrimes *dposp = mtod(m, caddr_t)+offs; 10111541Srgrimes return (0); 10121541Srgrimes} 10131541Srgrimes 10141541Srgrimes/* 10151541Srgrimes * Copy a string into mbufs for the hard cases... 10161541Srgrimes */ 10171549Srgrimesint 10181541Srgrimesnfsm_strtmbuf(mb, bpos, cp, siz) 10191541Srgrimes struct mbuf **mb; 10201541Srgrimes char **bpos; 10211541Srgrimes char *cp; 10221541Srgrimes long siz; 10231541Srgrimes{ 10241549Srgrimes register struct mbuf *m1 = 0, *m2; 10251541Srgrimes long left, xfer, len, tlen; 10261541Srgrimes u_long *tl; 10271541Srgrimes int putsize; 10281541Srgrimes 10291541Srgrimes putsize = 1; 10301541Srgrimes m2 = *mb; 10311541Srgrimes left = M_TRAILINGSPACE(m2); 10321541Srgrimes if (left > 0) { 10331541Srgrimes tl = ((u_long *)(*bpos)); 10341541Srgrimes *tl++ = txdr_unsigned(siz); 10351541Srgrimes putsize = 0; 10361541Srgrimes left -= NFSX_UNSIGNED; 10371541Srgrimes m2->m_len += NFSX_UNSIGNED; 10381541Srgrimes if (left > 0) { 10391541Srgrimes bcopy(cp, (caddr_t) tl, left); 10401541Srgrimes siz -= left; 10411541Srgrimes cp += left; 10421541Srgrimes m2->m_len += left; 10431541Srgrimes left = 0; 10441541Srgrimes } 10451541Srgrimes } 10461541Srgrimes /* Loop around adding mbufs */ 10471541Srgrimes while (siz > 0) { 10481541Srgrimes MGET(m1, M_WAIT, MT_DATA); 10491541Srgrimes if (siz > MLEN) 10501541Srgrimes MCLGET(m1, M_WAIT); 10511541Srgrimes m1->m_len = NFSMSIZ(m1); 10521541Srgrimes m2->m_next = m1; 10531541Srgrimes m2 = m1; 10541541Srgrimes tl = mtod(m1, u_long *); 10551541Srgrimes tlen = 0; 10561541Srgrimes if (putsize) { 10571541Srgrimes *tl++ = txdr_unsigned(siz); 10581541Srgrimes m1->m_len -= NFSX_UNSIGNED; 10591541Srgrimes tlen = NFSX_UNSIGNED; 10601541Srgrimes putsize = 0; 10611541Srgrimes } 10621541Srgrimes if (siz < m1->m_len) { 10631541Srgrimes len = nfsm_rndup(siz); 10641541Srgrimes xfer = siz; 10651541Srgrimes if (xfer < len) 10661541Srgrimes *(tl+(xfer>>2)) = 0; 10671541Srgrimes } else { 10681541Srgrimes xfer = len = m1->m_len; 10691541Srgrimes } 10701541Srgrimes bcopy(cp, (caddr_t) tl, xfer); 10711541Srgrimes m1->m_len = len+tlen; 10721541Srgrimes siz -= xfer; 10731541Srgrimes cp += xfer; 10741541Srgrimes } 10751541Srgrimes *mb = m1; 10761541Srgrimes *bpos = mtod(m1, caddr_t)+m1->m_len; 10771541Srgrimes return (0); 10781541Srgrimes} 10791541Srgrimes 10801541Srgrimes/* 10811541Srgrimes * Called once to initialize data structures... 10821541Srgrimes */ 10831549Srgrimesint 10841541Srgrimesnfs_init() 10851541Srgrimes{ 10861541Srgrimes register int i; 10871541Srgrimes 10889336Sdfr /* 10899336Sdfr * Check to see if major data structures haven't bloated. 10909336Sdfr */ 10919336Sdfr if (sizeof (struct nfsnode) > NFS_NODEALLOC) { 10929336Sdfr printf("struct nfsnode bloated (> %dbytes)\n", NFS_NODEALLOC); 10939336Sdfr printf("Try reducing NFS_SMALLFH\n"); 10949336Sdfr } 10959336Sdfr if (sizeof (struct nfsmount) > NFS_MNTALLOC) { 10969336Sdfr printf("struct nfsmount bloated (> %dbytes)\n", NFS_MNTALLOC); 10979336Sdfr printf("Try reducing NFS_MUIDHASHSIZ\n"); 10989336Sdfr } 10999336Sdfr if (sizeof (struct nfssvc_sock) > NFS_SVCALLOC) { 11009336Sdfr printf("struct nfssvc_sock bloated (> %dbytes)\n",NFS_SVCALLOC); 11019336Sdfr printf("Try reducing NFS_UIDHASHSIZ\n"); 11029336Sdfr } 11039336Sdfr if (sizeof (struct nfsuid) > NFS_UIDALLOC) { 11049336Sdfr printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC); 11059336Sdfr printf("Try unionizing the nu_nickname and nu_flag fields\n"); 11069336Sdfr } 11071541Srgrimes nfsrtt.pos = 0; 11081541Srgrimes rpc_vers = txdr_unsigned(RPC_VER2); 11091541Srgrimes rpc_call = txdr_unsigned(RPC_CALL); 11101541Srgrimes rpc_reply = txdr_unsigned(RPC_REPLY); 11111541Srgrimes rpc_msgdenied = txdr_unsigned(RPC_MSGDENIED); 11121541Srgrimes rpc_msgaccepted = txdr_unsigned(RPC_MSGACCEPTED); 11131541Srgrimes rpc_mismatch = txdr_unsigned(RPC_MISMATCH); 11141541Srgrimes rpc_autherr = txdr_unsigned(RPC_AUTHERR); 11151541Srgrimes rpc_auth_unix = txdr_unsigned(RPCAUTH_UNIX); 11169336Sdfr rpc_auth_kerb = txdr_unsigned(RPCAUTH_KERB4); 11171541Srgrimes nfs_prog = txdr_unsigned(NFS_PROG); 11189336Sdfr nqnfs_prog = txdr_unsigned(NQNFS_PROG); 11191541Srgrimes nfs_true = txdr_unsigned(TRUE); 11201541Srgrimes nfs_false = txdr_unsigned(FALSE); 11213664Sphk nfs_xdrneg1 = txdr_unsigned(-1); 11229336Sdfr nfs_ticks = (hz * NFS_TICKINTVL + 500) / 1000; 11239336Sdfr if (nfs_ticks < 1) 11249336Sdfr nfs_ticks = 1; 11251541Srgrimes /* Ensure async daemons disabled */ 11261541Srgrimes for (i = 0; i < NFS_MAXASYNCDAEMON; i++) 11271541Srgrimes nfs_iodwant[i] = (struct proc *)0; 11281541Srgrimes TAILQ_INIT(&nfs_bufq); 11291541Srgrimes nfs_nhinit(); /* Init the nfsnode table */ 113013416Sphk#ifndef NFS_NOSERVER 11311541Srgrimes nfsrv_init(0); /* Init server data structures */ 11321541Srgrimes nfsrv_initcache(); /* Init the server request cache */ 113313416Sphk#endif 11341541Srgrimes 11351541Srgrimes /* 11361541Srgrimes * Initialize the nqnfs server stuff. 11371541Srgrimes */ 11381541Srgrimes if (nqnfsstarttime == 0) { 11391541Srgrimes nqnfsstarttime = boottime.tv_sec + nqsrv_maxlease 11401541Srgrimes + nqsrv_clockskew + nqsrv_writeslack; 11411541Srgrimes NQLOADNOVRAM(nqnfsstarttime); 11423664Sphk CIRCLEQ_INIT(&nqtimerhead); 11433664Sphk nqfhhashtbl = hashinit(NQLCHSZ, M_NQLEASE, &nqfhhash); 11441541Srgrimes } 11451541Srgrimes 11461541Srgrimes /* 11471541Srgrimes * Initialize reply list and start timer 11481541Srgrimes */ 11493664Sphk TAILQ_INIT(&nfs_reqq); 115013416Sphk#ifndef NFS_NOSERVER 11513305Sphk nfs_timer(0); 115213416Sphk#endif 11531549Srgrimes 11549336Sdfr#ifdef __FreeBSD__ 11552997Swollman /* 11562997Swollman * Set up lease_check and lease_updatetime so that other parts 11572997Swollman * of the system can call us, if we are loadable. 11582997Swollman */ 115913416Sphk#ifndef NFS_NOSERVER 11602997Swollman lease_check = nfs_lease_check; 116113416Sphk#endif 11622997Swollman lease_updatetime = nfs_lease_updatetime; 11632997Swollman vfsconf[MOUNT_NFS]->vfc_refcount++; /* make us non-unloadable */ 11642997Swollman#ifdef VFS_LKM 11652997Swollman sysent[SYS_nfssvc].sy_narg = 2; 11662997Swollman sysent[SYS_nfssvc].sy_call = nfssvc; 116713416Sphk#ifndef NFS_NOSERVER 11682997Swollman sysent[SYS_getfh].sy_narg = 2; 11692997Swollman sysent[SYS_getfh].sy_call = getfh; 11702997Swollman#endif 11719336Sdfr#endif 117213416Sphk#endif 11732997Swollman 11741549Srgrimes return (0); 11751541Srgrimes} 11761541Srgrimes 11771541Srgrimes/* 11781541Srgrimes * Attribute cache routines. 11791541Srgrimes * nfs_loadattrcache() - loads or updates the cache contents from attributes 11801541Srgrimes * that are on the mbuf list 11811541Srgrimes * nfs_getattrcache() - returns valid attributes if found in cache, returns 11821541Srgrimes * error otherwise 11831541Srgrimes */ 11841541Srgrimes 11851541Srgrimes/* 11861541Srgrimes * Load the attribute cache (that lives in the nfsnode entry) with 11871541Srgrimes * the values on the mbuf list and 11881541Srgrimes * Iff vap not NULL 11891541Srgrimes * copy the attributes to *vaper 11901541Srgrimes */ 11911549Srgrimesint 11921541Srgrimesnfs_loadattrcache(vpp, mdp, dposp, vaper) 11931541Srgrimes struct vnode **vpp; 11941541Srgrimes struct mbuf **mdp; 11951541Srgrimes caddr_t *dposp; 11961541Srgrimes struct vattr *vaper; 11971541Srgrimes{ 11981541Srgrimes register struct vnode *vp = *vpp; 11991541Srgrimes register struct vattr *vap; 12009336Sdfr register struct nfs_fattr *fp; 12013664Sphk register struct nfsnode *np; 12023664Sphk register struct nfsnodehashhead *nhpp; 12031541Srgrimes register long t1; 12049336Sdfr caddr_t cp2; 12059336Sdfr int error = 0, rdev; 12061541Srgrimes struct mbuf *md; 12071541Srgrimes enum vtype vtyp; 12081541Srgrimes u_short vmode; 12091541Srgrimes struct timespec mtime; 12101541Srgrimes struct vnode *nvp; 12119336Sdfr int v3 = NFS_ISV3(vp); 12121541Srgrimes 12131541Srgrimes md = *mdp; 12149336Sdfr t1 = (mtod(md, caddr_t) + md->m_len) - *dposp; 12159336Sdfr if (error = nfsm_disct(mdp, dposp, NFSX_FATTR(v3), t1, &cp2)) 12161541Srgrimes return (error); 12179336Sdfr fp = (struct nfs_fattr *)cp2; 12189336Sdfr if (v3) { 12199336Sdfr vtyp = nfsv3tov_type(fp->fa_type); 12209336Sdfr vmode = fxdr_unsigned(u_short, fp->fa_mode); 12219336Sdfr rdev = makedev(fxdr_unsigned(u_char, fp->fa3_rdev.specdata1), 12229336Sdfr fxdr_unsigned(u_char, fp->fa3_rdev.specdata2)); 12239336Sdfr fxdr_nfsv3time(&fp->fa3_mtime, &mtime); 12241541Srgrimes } else { 12259336Sdfr vtyp = nfsv2tov_type(fp->fa_type); 12269336Sdfr vmode = fxdr_unsigned(u_short, fp->fa_mode); 12279336Sdfr /* 12289336Sdfr * XXX 12299336Sdfr * 12309336Sdfr * The duplicate information returned in fa_type and fa_mode 12319336Sdfr * is an ambiguity in the NFS version 2 protocol. 12329336Sdfr * 12339336Sdfr * VREG should be taken literally as a regular file. If a 12349336Sdfr * server intents to return some type information differently 12359336Sdfr * in the upper bits of the mode field (e.g. for sockets, or 12369336Sdfr * FIFOs), NFSv2 mandates fa_type to be VNON. Anyway, we 12379336Sdfr * leave the examination of the mode bits even in the VREG 12389336Sdfr * case to avoid breakage for bogus servers, but we make sure 12399336Sdfr * that there are actually type bits set in the upper part of 12409336Sdfr * fa_mode (and failing that, trust the va_type field). 12419336Sdfr * 12429336Sdfr * NFSv3 cleared the issue, and requires fa_mode to not 12439336Sdfr * contain any type information (while also introduing sockets 12449336Sdfr * and FIFOs for fa_type). 12459336Sdfr */ 12469336Sdfr if (vtyp == VNON || (vtyp == VREG && (vmode & S_IFMT) != 0)) 12479336Sdfr vtyp = IFTOVT(vmode); 12489336Sdfr rdev = fxdr_unsigned(long, fp->fa2_rdev); 12499336Sdfr fxdr_nfsv2time(&fp->fa2_mtime, &mtime); 12509336Sdfr 12519336Sdfr /* 12529336Sdfr * Really ugly NFSv2 kludge. 12539336Sdfr */ 12549336Sdfr if (vtyp == VCHR && rdev == 0xffffffff) 12559336Sdfr vtyp = VFIFO; 12561541Srgrimes } 12579336Sdfr 12581541Srgrimes /* 12591541Srgrimes * If v_type == VNON it is a new node, so fill in the v_type, 12608876Srgrimes * n_mtime fields. Check to see if it represents a special 12611541Srgrimes * device, and if so, check for a possible alias. Once the 12621541Srgrimes * correct vnode has been obtained, fill in the rest of the 12631541Srgrimes * information. 12641541Srgrimes */ 12651541Srgrimes np = VTONFS(vp); 126610219Sdfr if (vp->v_type != vtyp) { 12679336Sdfr /* 12689336Sdfr * If we had a lock and it turns out that the vnode 12699336Sdfr * is an object which we don't want to lock (e.g. VDIR) 12709336Sdfr * to avoid nasty hanging problems on a server crash, 12719336Sdfr * then release it here. 12729336Sdfr */ 12739336Sdfr if (vtyp != VREG && VOP_ISLOCKED(vp)) 12749336Sdfr VOP_UNLOCK(vp); 12759336Sdfr vp->v_type = vtyp; 12761541Srgrimes if (vp->v_type == VFIFO) { 12771541Srgrimes vp->v_op = fifo_nfsv2nodeop_p; 12781541Srgrimes } 12791541Srgrimes if (vp->v_type == VCHR || vp->v_type == VBLK) { 12801541Srgrimes vp->v_op = spec_nfsv2nodeop_p; 12813305Sphk nvp = checkalias(vp, (dev_t)rdev, vp->v_mount); 12823305Sphk if (nvp) { 12831541Srgrimes /* 12841541Srgrimes * Discard unneeded vnode, but save its nfsnode. 12851541Srgrimes */ 12863664Sphk LIST_REMOVE(np, n_hash); 12871541Srgrimes nvp->v_data = vp->v_data; 12881541Srgrimes vp->v_data = NULL; 12891541Srgrimes vp->v_op = spec_vnodeop_p; 12901541Srgrimes vrele(vp); 12911541Srgrimes vgone(vp); 12921541Srgrimes /* 12931541Srgrimes * Reinitialize aliased node. 12941541Srgrimes */ 12951541Srgrimes np->n_vnode = nvp; 12969336Sdfr nhpp = NFSNOHASH(nfs_hash(np->n_fhp, np->n_fhsize)); 12973664Sphk LIST_INSERT_HEAD(nhpp, np, n_hash); 12981541Srgrimes *vpp = vp = nvp; 12991541Srgrimes } 13001541Srgrimes } 13011541Srgrimes np->n_mtime = mtime.ts_sec; 13021541Srgrimes } 13031541Srgrimes vap = &np->n_vattr; 13041541Srgrimes vap->va_type = vtyp; 13051541Srgrimes vap->va_mode = (vmode & 07777); 13061541Srgrimes vap->va_rdev = (dev_t)rdev; 13071541Srgrimes vap->va_mtime = mtime; 13081541Srgrimes vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 13099336Sdfr if (v3) { 13109336Sdfr vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 13119336Sdfr vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 13129336Sdfr vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 13139336Sdfr fxdr_hyper(&fp->fa3_size, &vap->va_size); 13149336Sdfr vap->va_blocksize = NFS_FABLKSIZE; 13159336Sdfr fxdr_hyper(&fp->fa3_used, &vap->va_bytes); 13169336Sdfr vap->va_fileid = fxdr_unsigned(int, fp->fa3_fileid.nfsuquad[1]); 13179336Sdfr fxdr_nfsv3time(&fp->fa3_atime, &vap->va_atime); 13189336Sdfr fxdr_nfsv3time(&fp->fa3_ctime, &vap->va_ctime); 13199336Sdfr vap->va_flags = 0; 13209336Sdfr vap->va_filerev = 0; 13211541Srgrimes } else { 13229336Sdfr vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 13239336Sdfr vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 13249336Sdfr vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 13259336Sdfr vap->va_size = fxdr_unsigned(u_long, fp->fa2_size); 13269336Sdfr vap->va_blocksize = fxdr_unsigned(long, fp->fa2_blocksize); 13279336Sdfr vap->va_bytes = fxdr_unsigned(long, fp->fa2_blocks) * NFS_FABLKSIZE; 13289336Sdfr vap->va_fileid = fxdr_unsigned(long, fp->fa2_fileid); 13299336Sdfr fxdr_nfsv2time(&fp->fa2_atime, &vap->va_atime); 13301541Srgrimes vap->va_flags = 0; 13319336Sdfr vap->va_ctime.ts_sec = fxdr_unsigned(long, fp->fa2_ctime.nfsv2_sec); 13329336Sdfr vap->va_ctime.ts_nsec = 0; 13339336Sdfr vap->va_gen = fxdr_unsigned(u_long, fp->fa2_ctime.nfsv2_usec); 13341541Srgrimes vap->va_filerev = 0; 13351541Srgrimes } 13361541Srgrimes if (vap->va_size != np->n_size) { 13371541Srgrimes if (vap->va_type == VREG) { 13381541Srgrimes if (np->n_flag & NMODIFIED) { 13391541Srgrimes if (vap->va_size < np->n_size) 13401541Srgrimes vap->va_size = np->n_size; 13411541Srgrimes else 13421541Srgrimes np->n_size = vap->va_size; 13431541Srgrimes } else 13441541Srgrimes np->n_size = vap->va_size; 13451541Srgrimes vnode_pager_setsize(vp, (u_long)np->n_size); 13461541Srgrimes } else 13471541Srgrimes np->n_size = vap->va_size; 13481541Srgrimes } 13491541Srgrimes np->n_attrstamp = time.tv_sec; 13501541Srgrimes if (vaper != NULL) { 13511541Srgrimes bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); 13521541Srgrimes if (np->n_flag & NCHG) { 13539336Sdfr if (np->n_flag & NACC) 13549336Sdfr vaper->va_atime = np->n_atim; 13559336Sdfr if (np->n_flag & NUPD) 13569336Sdfr vaper->va_mtime = np->n_mtim; 13571541Srgrimes } 13581541Srgrimes } 13591541Srgrimes return (0); 13601541Srgrimes} 13611541Srgrimes 13621541Srgrimes/* 13631541Srgrimes * Check the time stamp 13641541Srgrimes * If the cache is valid, copy contents to *vap and return 0 13651541Srgrimes * otherwise return an error 13661541Srgrimes */ 13671549Srgrimesint 13681541Srgrimesnfs_getattrcache(vp, vaper) 13691541Srgrimes register struct vnode *vp; 13701541Srgrimes struct vattr *vaper; 13711541Srgrimes{ 13721541Srgrimes register struct nfsnode *np = VTONFS(vp); 13731541Srgrimes register struct vattr *vap; 13741541Srgrimes 13759336Sdfr if ((time.tv_sec - np->n_attrstamp) >= NFS_ATTRTIMEO(np)) { 13761541Srgrimes nfsstats.attrcache_misses++; 13771541Srgrimes return (ENOENT); 13781541Srgrimes } 13791541Srgrimes nfsstats.attrcache_hits++; 13801541Srgrimes vap = &np->n_vattr; 13811541Srgrimes if (vap->va_size != np->n_size) { 13821541Srgrimes if (vap->va_type == VREG) { 13831541Srgrimes if (np->n_flag & NMODIFIED) { 13841541Srgrimes if (vap->va_size < np->n_size) 13851541Srgrimes vap->va_size = np->n_size; 13861541Srgrimes else 13871541Srgrimes np->n_size = vap->va_size; 13881541Srgrimes } else 13891541Srgrimes np->n_size = vap->va_size; 13901541Srgrimes vnode_pager_setsize(vp, (u_long)np->n_size); 13911541Srgrimes } else 13921541Srgrimes np->n_size = vap->va_size; 13931541Srgrimes } 13941541Srgrimes bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(struct vattr)); 13951541Srgrimes if (np->n_flag & NCHG) { 13969336Sdfr if (np->n_flag & NACC) 13979336Sdfr vaper->va_atime = np->n_atim; 13989336Sdfr if (np->n_flag & NUPD) 13999336Sdfr vaper->va_mtime = np->n_mtim; 14001541Srgrimes } 14011541Srgrimes return (0); 14021541Srgrimes} 14031541Srgrimes 140413416Sphk#ifndef NFS_NOSERVER 14051541Srgrimes/* 14061541Srgrimes * Set up nameidata for a lookup() call and do it 14071541Srgrimes */ 14081549Srgrimesint 14099336Sdfrnfs_namei(ndp, fhp, len, slp, nam, mdp, dposp, retdirp, p, kerbflag) 14101541Srgrimes register struct nameidata *ndp; 14111541Srgrimes fhandle_t *fhp; 14121541Srgrimes int len; 14131541Srgrimes struct nfssvc_sock *slp; 14141541Srgrimes struct mbuf *nam; 14151541Srgrimes struct mbuf **mdp; 14161541Srgrimes caddr_t *dposp; 14179336Sdfr struct vnode **retdirp; 14181541Srgrimes struct proc *p; 14199336Sdfr int kerbflag; 14201541Srgrimes{ 14211541Srgrimes register int i, rem; 14221541Srgrimes register struct mbuf *md; 14231541Srgrimes register char *fromcp, *tocp; 14241541Srgrimes struct vnode *dp; 14251541Srgrimes int error, rdonly; 14261541Srgrimes struct componentname *cnp = &ndp->ni_cnd; 14271541Srgrimes 14289336Sdfr *retdirp = (struct vnode *)0; 14291541Srgrimes MALLOC(cnp->cn_pnbuf, char *, len + 1, M_NAMEI, M_WAITOK); 14301541Srgrimes /* 14311541Srgrimes * Copy the name from the mbuf list to ndp->ni_pnbuf 14321541Srgrimes * and set the various ndp fields appropriately. 14331541Srgrimes */ 14341541Srgrimes fromcp = *dposp; 14351541Srgrimes tocp = cnp->cn_pnbuf; 14361541Srgrimes md = *mdp; 14371541Srgrimes rem = mtod(md, caddr_t) + md->m_len - fromcp; 14381541Srgrimes cnp->cn_hash = 0; 14391541Srgrimes for (i = 0; i < len; i++) { 14401541Srgrimes while (rem == 0) { 14411541Srgrimes md = md->m_next; 14421541Srgrimes if (md == NULL) { 14431541Srgrimes error = EBADRPC; 14441541Srgrimes goto out; 14451541Srgrimes } 14461541Srgrimes fromcp = mtod(md, caddr_t); 14471541Srgrimes rem = md->m_len; 14481541Srgrimes } 14491541Srgrimes if (*fromcp == '\0' || *fromcp == '/') { 14509336Sdfr error = EACCES; 14511541Srgrimes goto out; 14521541Srgrimes } 14531541Srgrimes cnp->cn_hash += (unsigned char)*fromcp; 14541541Srgrimes *tocp++ = *fromcp++; 14551541Srgrimes rem--; 14561541Srgrimes } 14571541Srgrimes *tocp = '\0'; 14581541Srgrimes *mdp = md; 14591541Srgrimes *dposp = fromcp; 14601541Srgrimes len = nfsm_rndup(len)-len; 14611541Srgrimes if (len > 0) { 14621541Srgrimes if (rem >= len) 14631541Srgrimes *dposp += len; 14649336Sdfr else if (error = nfs_adv(mdp, dposp, len, rem)) 14659336Sdfr goto out; 14661541Srgrimes } 14671541Srgrimes ndp->ni_pathlen = tocp - cnp->cn_pnbuf; 14681541Srgrimes cnp->cn_nameptr = cnp->cn_pnbuf; 14691541Srgrimes /* 14701541Srgrimes * Extract and set starting directory. 14711541Srgrimes */ 14729336Sdfr if (error = nfsrv_fhtovp(fhp, FALSE, &dp, ndp->ni_cnd.cn_cred, slp, 14739336Sdfr nam, &rdonly, kerbflag)) 14741541Srgrimes goto out; 14751541Srgrimes if (dp->v_type != VDIR) { 14766417Sdg nfsrv_vrele(dp); 14771541Srgrimes error = ENOTDIR; 14781541Srgrimes goto out; 14791541Srgrimes } 14809336Sdfr VREF(dp); 14819336Sdfr *retdirp = dp; 14821541Srgrimes ndp->ni_startdir = dp; 14831541Srgrimes if (rdonly) 14841541Srgrimes cnp->cn_flags |= (NOCROSSMOUNT | RDONLY); 14851541Srgrimes else 14861541Srgrimes cnp->cn_flags |= NOCROSSMOUNT; 14871541Srgrimes /* 14881541Srgrimes * And call lookup() to do the real work 14891541Srgrimes */ 14901541Srgrimes cnp->cn_proc = p; 14919336Sdfr if (error = lookup(ndp)) 14921541Srgrimes goto out; 14931541Srgrimes /* 14941541Srgrimes * Check for encountering a symbolic link 14951541Srgrimes */ 14961541Srgrimes if (cnp->cn_flags & ISSYMLINK) { 14971541Srgrimes if ((cnp->cn_flags & LOCKPARENT) && ndp->ni_pathlen == 1) 14981541Srgrimes vput(ndp->ni_dvp); 14991541Srgrimes else 15001541Srgrimes vrele(ndp->ni_dvp); 15011541Srgrimes vput(ndp->ni_vp); 15021541Srgrimes ndp->ni_vp = NULL; 15031541Srgrimes error = EINVAL; 15041541Srgrimes goto out; 15051541Srgrimes } 15068832Sdg 15078832Sdg nfsrv_vmio(ndp->ni_vp); 15088832Sdg 15091541Srgrimes /* 15101541Srgrimes * Check for saved name request 15111541Srgrimes */ 15121541Srgrimes if (cnp->cn_flags & (SAVENAME | SAVESTART)) { 15131541Srgrimes cnp->cn_flags |= HASBUF; 15141541Srgrimes return (0); 15151541Srgrimes } 15161541Srgrimesout: 15171541Srgrimes FREE(cnp->cn_pnbuf, M_NAMEI); 15181541Srgrimes return (error); 15191541Srgrimes} 15201541Srgrimes 15211541Srgrimes/* 15221541Srgrimes * A fiddled version of m_adj() that ensures null fill to a long 15231541Srgrimes * boundary and only trims off the back end 15241541Srgrimes */ 15251541Srgrimesvoid 15261541Srgrimesnfsm_adj(mp, len, nul) 15271541Srgrimes struct mbuf *mp; 15281541Srgrimes register int len; 15291541Srgrimes int nul; 15301541Srgrimes{ 15311541Srgrimes register struct mbuf *m; 15321541Srgrimes register int count, i; 15331541Srgrimes register char *cp; 15341541Srgrimes 15351541Srgrimes /* 15361541Srgrimes * Trim from tail. Scan the mbuf chain, 15371541Srgrimes * calculating its length and finding the last mbuf. 15381541Srgrimes * If the adjustment only affects this mbuf, then just 15391541Srgrimes * adjust and return. Otherwise, rescan and truncate 15401541Srgrimes * after the remaining size. 15411541Srgrimes */ 15421541Srgrimes count = 0; 15431541Srgrimes m = mp; 15441541Srgrimes for (;;) { 15451541Srgrimes count += m->m_len; 15461541Srgrimes if (m->m_next == (struct mbuf *)0) 15471541Srgrimes break; 15481541Srgrimes m = m->m_next; 15491541Srgrimes } 15501541Srgrimes if (m->m_len > len) { 15511541Srgrimes m->m_len -= len; 15521541Srgrimes if (nul > 0) { 15531541Srgrimes cp = mtod(m, caddr_t)+m->m_len-nul; 15541541Srgrimes for (i = 0; i < nul; i++) 15551541Srgrimes *cp++ = '\0'; 15561541Srgrimes } 15571541Srgrimes return; 15581541Srgrimes } 15591541Srgrimes count -= len; 15601541Srgrimes if (count < 0) 15611541Srgrimes count = 0; 15621541Srgrimes /* 15631541Srgrimes * Correct length for chain is "count". 15641541Srgrimes * Find the mbuf with last data, adjust its length, 15651541Srgrimes * and toss data from remaining mbufs on chain. 15661541Srgrimes */ 15671541Srgrimes for (m = mp; m; m = m->m_next) { 15681541Srgrimes if (m->m_len >= count) { 15691541Srgrimes m->m_len = count; 15701541Srgrimes if (nul > 0) { 15711541Srgrimes cp = mtod(m, caddr_t)+m->m_len-nul; 15721541Srgrimes for (i = 0; i < nul; i++) 15731541Srgrimes *cp++ = '\0'; 15741541Srgrimes } 15751541Srgrimes break; 15761541Srgrimes } 15771541Srgrimes count -= m->m_len; 15781541Srgrimes } 15793305Sphk for (m = m->m_next;m;m = m->m_next) 15801541Srgrimes m->m_len = 0; 15811541Srgrimes} 15821541Srgrimes 15831541Srgrimes/* 15849336Sdfr * Make these functions instead of macros, so that the kernel text size 15859336Sdfr * doesn't get too big... 15869336Sdfr */ 15879336Sdfrvoid 15889336Sdfrnfsm_srvwcc(nfsd, before_ret, before_vap, after_ret, after_vap, mbp, bposp) 15899336Sdfr struct nfsrv_descript *nfsd; 15909336Sdfr int before_ret; 15919336Sdfr register struct vattr *before_vap; 15929336Sdfr int after_ret; 15939336Sdfr struct vattr *after_vap; 15949336Sdfr struct mbuf **mbp; 15959336Sdfr char **bposp; 15969336Sdfr{ 15979336Sdfr register struct mbuf *mb = *mbp, *mb2; 15989336Sdfr register char *bpos = *bposp; 15999336Sdfr register u_long *tl; 16009336Sdfr 16019336Sdfr if (before_ret) { 16029336Sdfr nfsm_build(tl, u_long *, NFSX_UNSIGNED); 16039336Sdfr *tl = nfs_false; 16049336Sdfr } else { 16059336Sdfr nfsm_build(tl, u_long *, 7 * NFSX_UNSIGNED); 16069336Sdfr *tl++ = nfs_true; 16079336Sdfr txdr_hyper(&(before_vap->va_size), tl); 16089336Sdfr tl += 2; 16099336Sdfr txdr_nfsv3time(&(before_vap->va_mtime), tl); 16109336Sdfr tl += 2; 16119336Sdfr txdr_nfsv3time(&(before_vap->va_ctime), tl); 16129336Sdfr } 16139336Sdfr *bposp = bpos; 16149336Sdfr *mbp = mb; 16159336Sdfr nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp); 16169336Sdfr} 16179336Sdfr 16189336Sdfrvoid 16199336Sdfrnfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp) 16209336Sdfr struct nfsrv_descript *nfsd; 16219336Sdfr int after_ret; 16229336Sdfr struct vattr *after_vap; 16239336Sdfr struct mbuf **mbp; 16249336Sdfr char **bposp; 16259336Sdfr{ 16269336Sdfr register struct mbuf *mb = *mbp, *mb2; 16279336Sdfr register char *bpos = *bposp; 16289336Sdfr register u_long *tl; 16299336Sdfr register struct nfs_fattr *fp; 16309336Sdfr 16319336Sdfr if (after_ret) { 16329336Sdfr nfsm_build(tl, u_long *, NFSX_UNSIGNED); 16339336Sdfr *tl = nfs_false; 16349336Sdfr } else { 16359336Sdfr nfsm_build(tl, u_long *, NFSX_UNSIGNED + NFSX_V3FATTR); 16369336Sdfr *tl++ = nfs_true; 16379336Sdfr fp = (struct nfs_fattr *)tl; 16389336Sdfr nfsm_srvfattr(nfsd, after_vap, fp); 16399336Sdfr } 16409336Sdfr *mbp = mb; 16419336Sdfr *bposp = bpos; 16429336Sdfr} 16439336Sdfr 16449336Sdfrvoid 16459336Sdfrnfsm_srvfattr(nfsd, vap, fp) 16469336Sdfr register struct nfsrv_descript *nfsd; 16479336Sdfr register struct vattr *vap; 16489336Sdfr register struct nfs_fattr *fp; 16499336Sdfr{ 16509336Sdfr 16519336Sdfr fp->fa_nlink = txdr_unsigned(vap->va_nlink); 16529336Sdfr fp->fa_uid = txdr_unsigned(vap->va_uid); 16539336Sdfr fp->fa_gid = txdr_unsigned(vap->va_gid); 16549336Sdfr if (nfsd->nd_flag & ND_NFSV3) { 16559336Sdfr fp->fa_type = vtonfsv3_type(vap->va_type); 16569336Sdfr fp->fa_mode = vtonfsv3_mode(vap->va_mode); 16579336Sdfr txdr_hyper(&vap->va_size, &fp->fa3_size); 16589336Sdfr txdr_hyper(&vap->va_bytes, &fp->fa3_used); 16599336Sdfr fp->fa3_rdev.specdata1 = txdr_unsigned(major(vap->va_rdev)); 16609336Sdfr fp->fa3_rdev.specdata2 = txdr_unsigned(minor(vap->va_rdev)); 16619336Sdfr fp->fa3_fsid.nfsuquad[0] = 0; 16629336Sdfr fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(vap->va_fsid); 16639336Sdfr fp->fa3_fileid.nfsuquad[0] = 0; 16649336Sdfr fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(vap->va_fileid); 16659336Sdfr txdr_nfsv3time(&vap->va_atime, &fp->fa3_atime); 16669336Sdfr txdr_nfsv3time(&vap->va_mtime, &fp->fa3_mtime); 16679336Sdfr txdr_nfsv3time(&vap->va_ctime, &fp->fa3_ctime); 16689336Sdfr } else { 16699336Sdfr fp->fa_type = vtonfsv2_type(vap->va_type); 16709336Sdfr fp->fa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 16719336Sdfr fp->fa2_size = txdr_unsigned(vap->va_size); 16729336Sdfr fp->fa2_blocksize = txdr_unsigned(vap->va_blocksize); 16739336Sdfr if (vap->va_type == VFIFO) 16749336Sdfr fp->fa2_rdev = 0xffffffff; 16759336Sdfr else 16769336Sdfr fp->fa2_rdev = txdr_unsigned(vap->va_rdev); 16779336Sdfr fp->fa2_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); 16789336Sdfr fp->fa2_fsid = txdr_unsigned(vap->va_fsid); 16799336Sdfr fp->fa2_fileid = txdr_unsigned(vap->va_fileid); 16809336Sdfr txdr_nfsv2time(&vap->va_atime, &fp->fa2_atime); 16819336Sdfr txdr_nfsv2time(&vap->va_mtime, &fp->fa2_mtime); 16829336Sdfr txdr_nfsv2time(&vap->va_ctime, &fp->fa2_ctime); 16839336Sdfr } 16849336Sdfr} 16859336Sdfr 16869336Sdfr/* 16871541Srgrimes * nfsrv_fhtovp() - convert a fh to a vnode ptr (optionally locked) 16881541Srgrimes * - look up fsid in mount list (if not found ret error) 16891541Srgrimes * - get vp and export rights by calling VFS_FHTOVP() 16901541Srgrimes * - if cred->cr_uid == 0 or MNT_EXPORTANON set it to credanon 16911541Srgrimes * - if not lockflag unlock it with VOP_UNLOCK() 16921541Srgrimes */ 16931549Srgrimesint 16949336Sdfrnfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag) 16951541Srgrimes fhandle_t *fhp; 16961541Srgrimes int lockflag; 16971541Srgrimes struct vnode **vpp; 16981541Srgrimes struct ucred *cred; 16991541Srgrimes struct nfssvc_sock *slp; 17001541Srgrimes struct mbuf *nam; 17011541Srgrimes int *rdonlyp; 17029336Sdfr int kerbflag; 17031541Srgrimes{ 17041541Srgrimes register struct mount *mp; 17051541Srgrimes register int i; 17061541Srgrimes struct ucred *credanon; 17071541Srgrimes int error, exflags; 17081541Srgrimes 17091541Srgrimes *vpp = (struct vnode *)0; 17103305Sphk mp = getvfs(&fhp->fh_fsid); 17113305Sphk if (!mp) 17121541Srgrimes return (ESTALE); 17133305Sphk error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon); 17143305Sphk if (error) 17151541Srgrimes return (error); 17161541Srgrimes /* 17171541Srgrimes * Check/setup credentials. 17181541Srgrimes */ 17191541Srgrimes if (exflags & MNT_EXKERB) { 17209336Sdfr if (!kerbflag) { 17211541Srgrimes vput(*vpp); 17229336Sdfr return (NFSERR_AUTHERR | AUTH_TOOWEAK); 17231541Srgrimes } 17249336Sdfr } else if (kerbflag) { 17259336Sdfr vput(*vpp); 17269336Sdfr return (NFSERR_AUTHERR | AUTH_TOOWEAK); 17271541Srgrimes } else if (cred->cr_uid == 0 || (exflags & MNT_EXPORTANON)) { 17281541Srgrimes cred->cr_uid = credanon->cr_uid; 17291541Srgrimes for (i = 0; i < credanon->cr_ngroups && i < NGROUPS; i++) 17301541Srgrimes cred->cr_groups[i] = credanon->cr_groups[i]; 17313664Sphk cred->cr_ngroups = i; 17321541Srgrimes } 17331541Srgrimes if (exflags & MNT_EXRDONLY) 17341541Srgrimes *rdonlyp = 1; 17351541Srgrimes else 17361541Srgrimes *rdonlyp = 0; 17377969Sdyson 17387969Sdyson nfsrv_vmio(*vpp); 17397969Sdyson 17401541Srgrimes if (!lockflag) 17411541Srgrimes VOP_UNLOCK(*vpp); 17421541Srgrimes return (0); 17431541Srgrimes} 17441541Srgrimes 174513416Sphk#endif /* NFS_NOSERVER */ 17461541Srgrimes/* 17471541Srgrimes * This function compares two net addresses by family and returns TRUE 17481541Srgrimes * if they are the same host. 17491541Srgrimes * If there is any doubt, return FALSE. 17501541Srgrimes * The AF_INET family is handled as a special case so that address mbufs 17511541Srgrimes * don't need to be saved to store "struct in_addr", which is only 4 bytes. 17521541Srgrimes */ 17531549Srgrimesint 17541541Srgrimesnetaddr_match(family, haddr, nam) 17551541Srgrimes int family; 17561541Srgrimes union nethostaddr *haddr; 17571541Srgrimes struct mbuf *nam; 17581541Srgrimes{ 17591541Srgrimes register struct sockaddr_in *inetaddr; 17601541Srgrimes 17611541Srgrimes switch (family) { 17621541Srgrimes case AF_INET: 17631541Srgrimes inetaddr = mtod(nam, struct sockaddr_in *); 17641541Srgrimes if (inetaddr->sin_family == AF_INET && 17651541Srgrimes inetaddr->sin_addr.s_addr == haddr->had_inetaddr) 17661541Srgrimes return (1); 17671541Srgrimes break; 17681541Srgrimes#ifdef ISO 17691541Srgrimes case AF_ISO: 17701541Srgrimes { 17711541Srgrimes register struct sockaddr_iso *isoaddr1, *isoaddr2; 17721541Srgrimes 17731541Srgrimes isoaddr1 = mtod(nam, struct sockaddr_iso *); 17741541Srgrimes isoaddr2 = mtod(haddr->had_nam, struct sockaddr_iso *); 17751541Srgrimes if (isoaddr1->siso_family == AF_ISO && 17761541Srgrimes isoaddr1->siso_nlen > 0 && 17771541Srgrimes isoaddr1->siso_nlen == isoaddr2->siso_nlen && 17781541Srgrimes SAME_ISOADDR(isoaddr1, isoaddr2)) 17791541Srgrimes return (1); 17801541Srgrimes break; 17811541Srgrimes } 17821541Srgrimes#endif /* ISO */ 17831541Srgrimes default: 17841541Srgrimes break; 17851541Srgrimes }; 17861541Srgrimes return (0); 17871541Srgrimes} 17885455Sdg 17899336Sdfrstatic nfsuint64 nfs_nullcookie = { 0, 0 }; 17909336Sdfr/* 17919336Sdfr * This function finds the directory cookie that corresponds to the 17929336Sdfr * logical byte offset given. 17939336Sdfr */ 17949336Sdfrnfsuint64 * 17959336Sdfrnfs_getcookie(np, off, add) 17969336Sdfr register struct nfsnode *np; 17979336Sdfr off_t off; 17989336Sdfr int add; 17999336Sdfr{ 18009336Sdfr register struct nfsdmap *dp, *dp2; 18019336Sdfr register int pos; 18029336Sdfr 18039336Sdfr pos = off / NFS_DIRBLKSIZ; 18049336Sdfr if (pos == 0) { 18059336Sdfr#ifdef DIAGNOSTIC 18069336Sdfr if (add) 18079336Sdfr panic("nfs getcookie add at 0"); 18089336Sdfr#endif 18099336Sdfr return (&nfs_nullcookie); 18109336Sdfr } 18119336Sdfr pos--; 18129336Sdfr dp = np->n_cookies.lh_first; 18139336Sdfr if (!dp) { 18149336Sdfr if (add) { 18159336Sdfr MALLOC(dp, struct nfsdmap *, sizeof (struct nfsdmap), 18169336Sdfr M_NFSDIROFF, M_WAITOK); 18179336Sdfr dp->ndm_eocookie = 0; 18189336Sdfr LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list); 18199336Sdfr } else 18209336Sdfr return ((nfsuint64 *)0); 18219336Sdfr } 18229336Sdfr while (pos >= NFSNUMCOOKIES) { 18239336Sdfr pos -= NFSNUMCOOKIES; 18249336Sdfr if (dp->ndm_list.le_next) { 18259336Sdfr if (!add && dp->ndm_eocookie < NFSNUMCOOKIES && 18269336Sdfr pos >= dp->ndm_eocookie) 18279336Sdfr return ((nfsuint64 *)0); 18289336Sdfr dp = dp->ndm_list.le_next; 18299336Sdfr } else if (add) { 18309336Sdfr MALLOC(dp2, struct nfsdmap *, sizeof (struct nfsdmap), 18319336Sdfr M_NFSDIROFF, M_WAITOK); 18329336Sdfr dp2->ndm_eocookie = 0; 18339336Sdfr LIST_INSERT_AFTER(dp, dp2, ndm_list); 18349336Sdfr dp = dp2; 18359336Sdfr } else 18369336Sdfr return ((nfsuint64 *)0); 18379336Sdfr } 18389336Sdfr if (pos >= dp->ndm_eocookie) { 18399336Sdfr if (add) 18409336Sdfr dp->ndm_eocookie = pos + 1; 18419336Sdfr else 18429336Sdfr return ((nfsuint64 *)0); 18439336Sdfr } 18449336Sdfr return (&dp->ndm_cookies[pos]); 18459336Sdfr} 18469336Sdfr 18479336Sdfr/* 18489336Sdfr * Invalidate cached directory information, except for the actual directory 18499336Sdfr * blocks (which are invalidated separately). 18509336Sdfr * Done mainly to avoid the use of stale offset cookies. 18519336Sdfr */ 18529336Sdfrvoid 18539336Sdfrnfs_invaldir(vp) 18549336Sdfr register struct vnode *vp; 18559336Sdfr{ 18569336Sdfr register struct nfsnode *np = VTONFS(vp); 18579336Sdfr 18589336Sdfr#ifdef DIAGNOSTIC 18599336Sdfr if (vp->v_type != VDIR) 18609336Sdfr panic("nfs: invaldir not dir"); 18619336Sdfr#endif 18629336Sdfr np->n_direofoffset = 0; 18639336Sdfr np->n_cookieverf.nfsuquad[0] = 0; 18649336Sdfr np->n_cookieverf.nfsuquad[1] = 0; 18659336Sdfr if (np->n_cookies.lh_first) 18669336Sdfr np->n_cookies.lh_first->ndm_eocookie = 0; 18679336Sdfr} 18689336Sdfr 18699336Sdfr/* 18709336Sdfr * The write verifier has changed (probably due to a server reboot), so all 18719336Sdfr * B_NEEDCOMMIT blocks will have to be written again. Since they are on the 18729336Sdfr * dirty block list as B_DELWRI, all this takes is clearing the B_NEEDCOMMIT 18739336Sdfr * flag. Once done the new write verifier can be set for the mount point. 18749336Sdfr */ 18759336Sdfrvoid 18769336Sdfrnfs_clearcommit(mp) 18779336Sdfr struct mount *mp; 18789336Sdfr{ 18799336Sdfr register struct vnode *vp, *nvp; 18809336Sdfr register struct buf *bp, *nbp; 18819336Sdfr int s; 18829336Sdfr 18839336Sdfr s = splbio(); 18849336Sdfrloop: 18859336Sdfr for (vp = mp->mnt_vnodelist.lh_first; vp; vp = nvp) { 18869336Sdfr if (vp->v_mount != mp) /* Paranoia */ 18879336Sdfr goto loop; 18889336Sdfr nvp = vp->v_mntvnodes.le_next; 18899336Sdfr for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { 18909336Sdfr nbp = bp->b_vnbufs.le_next; 18919336Sdfr if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT)) 18929336Sdfr == (B_DELWRI | B_NEEDCOMMIT)) 18939336Sdfr bp->b_flags &= ~B_NEEDCOMMIT; 18949336Sdfr } 18959336Sdfr } 18969336Sdfr splx(s); 18979336Sdfr} 18989336Sdfr 189913416Sphk#ifndef NFS_NOSERVER 19009336Sdfr/* 19019336Sdfr * Map errnos to NFS error numbers. For Version 3 also filter out error 19029336Sdfr * numbers not specified for the associated procedure. 19039336Sdfr */ 19045455Sdgint 19059336Sdfrnfsrv_errmap(nd, err) 19069336Sdfr struct nfsrv_descript *nd; 19079336Sdfr register int err; 19089336Sdfr{ 19099336Sdfr register short *defaulterrp, *errp; 19109336Sdfr 19119336Sdfr if (nd->nd_flag & ND_NFSV3) { 19129336Sdfr if (nd->nd_procnum <= NFSPROC_COMMIT) { 19139336Sdfr errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum]; 19149336Sdfr while (*++errp) { 19159336Sdfr if (*errp == err) 19169336Sdfr return (err); 19179336Sdfr else if (*errp > err) 19189336Sdfr break; 19199336Sdfr } 19209336Sdfr return ((int)*defaulterrp); 19219336Sdfr } else 19229336Sdfr return (err & 0xffff); 19239336Sdfr } 19249336Sdfr if (err <= ELAST) 19259336Sdfr return ((int)nfsrv_v2errmap[err - 1]); 19269336Sdfr return (NFSERR_IO); 19279336Sdfr} 19289336Sdfr 19299336Sdfrint 19309356Sdgnfsrv_vmio(struct vnode *vp) { 19315455Sdg vm_object_t object; 19325455Sdg 19339356Sdg if ((vp == NULL) || (vp->v_type != VREG)) 19345455Sdg return 1; 19355455Sdg 19365455Sdgretry: 19379356Sdg if ((vp->v_flag & VVMIO) == 0) { 19389456Sdg struct vattr vat; 19399456Sdg struct proc *p = curproc; 19409456Sdg 19419456Sdg if (VOP_GETATTR(vp, &vat, p->p_ucred, p) != 0) 19429456Sdg panic("nfsrv_vmio: VOP_GETATTR failed"); 19439456Sdg 19449588Sdg (void) vnode_pager_alloc(vp, vat.va_size, 0, 0); 19459456Sdg 19465455Sdg vp->v_flag |= VVMIO; 19475455Sdg } else { 19489356Sdg if ((object = vp->v_object) && 19495455Sdg (object->flags & OBJ_DEAD)) { 19509356Sdg tsleep(object, PVM, "nfdead", 0); 19515455Sdg goto retry; 19525455Sdg } 19539356Sdg if (!object) 19545455Sdg panic("nfsrv_vmio: VMIO object missing"); 19559507Sdg vm_object_reference(object); 19565455Sdg } 19575455Sdg return 0; 19585455Sdg} 19595455Sdgint 19609356Sdgnfsrv_vput(struct vnode *vp) { 19619356Sdg if ((vp->v_flag & VVMIO) && vp->v_object) { 19629356Sdg vput(vp); 19639356Sdg vm_object_deallocate(vp->v_object); 19646210Sdg } else { 19659356Sdg vput(vp); 19665455Sdg } 19675455Sdg return 0; 19685455Sdg} 19695455Sdgint 19709356Sdgnfsrv_vrele(struct vnode *vp) { 19719356Sdg if ((vp->v_flag & VVMIO) && vp->v_object) { 19729356Sdg vrele(vp); 19739356Sdg vm_object_deallocate(vp->v_object); 19746210Sdg } else { 19759356Sdg vrele(vp); 19765455Sdg } 19775455Sdg return 0; 19785455Sdg} 197913416Sphk#endif /* NFS_NOSERVER */ 1980