nfs_srvsubs.c revision 36541
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 * 3636503Speter * @(#)nfs_subs.c 8.8 (Berkeley) 5/22/95 3736541Speter * $Id: nfs_subs.c,v 1.60 1998/05/31 19:16:08 peter 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> 4631886Sbde#include <sys/buf.h> 471541Srgrimes#include <sys/proc.h> 481541Srgrimes#include <sys/systm.h> 491541Srgrimes#include <sys/kernel.h> 501541Srgrimes#include <sys/mount.h> 511541Srgrimes#include <sys/vnode.h> 521541Srgrimes#include <sys/namei.h> 531541Srgrimes#include <sys/mbuf.h> 541541Srgrimes#include <sys/socket.h> 551541Srgrimes#include <sys/stat.h> 569336Sdfr#include <sys/malloc.h> 572997Swollman#include <sys/sysent.h> 582997Swollman#include <sys/syscall.h> 591541Srgrimes 603305Sphk#include <vm/vm.h> 6112662Sdg#include <vm/vm_object.h> 6212662Sdg#include <vm/vm_extern.h> 6332011Sbde#include <vm/vm_zone.h> 643305Sphk 651541Srgrimes#include <nfs/rpcv2.h> 669336Sdfr#include <nfs/nfsproto.h> 6730808Sbde#include <nfs/nfs.h> 681541Srgrimes#include <nfs/nfsnode.h> 691541Srgrimes#include <nfs/xdr_subs.h> 701541Srgrimes#include <nfs/nfsm_subs.h> 711541Srgrimes#include <nfs/nfsmount.h> 721541Srgrimes#include <nfs/nqnfs.h> 731541Srgrimes#include <nfs/nfsrtt.h> 741541Srgrimes 751541Srgrimes#include <miscfs/specfs/specdev.h> 761541Srgrimes 771541Srgrimes#include <netinet/in.h> 781541Srgrimes#ifdef ISO 791541Srgrimes#include <netiso/iso.h> 801541Srgrimes#endif 811541Srgrimes 821541Srgrimes/* 831541Srgrimes * Data items converted to xdr at startup, since they are constant 841541Srgrimes * This is kinda hokey, but may save a little time doing byte swaps 851541Srgrimes */ 8636541Speteru_int32_t nfs_xdrneg1; 8736541Speteru_int32_t rpc_call, rpc_vers, rpc_reply, rpc_msgdenied, rpc_autherr, 889336Sdfr rpc_mismatch, rpc_auth_unix, rpc_msgaccepted, 891541Srgrimes rpc_auth_kerb; 9036541Speteru_int32_t nfs_prog, nqnfs_prog, nfs_true, nfs_false; 911541Srgrimes 921541Srgrimes/* And other global data */ 9336541Speterstatic u_int32_t nfs_xid = 0; 9412911Sphkstatic enum vtype nv2tov_type[8]= { 9512911Sphk VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON 9612911Sphk}; 9712911Sphkenum vtype nv3tov_type[8]= { 9812911Sphk VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO 9912911Sphk}; 10012911Sphk 10122521Sdysonint nfs_mount_type; 1029336Sdfrint nfs_ticks; 1039336Sdfr 1049759Sbdestruct nfs_reqq nfs_reqq; 1059759Sbdestruct nfssvc_sockhead nfssvc_sockhead; 1069759Sbdeint nfssvc_sockhead_flag; 1079759Sbdestruct nfsd_head nfsd_head; 1089759Sbdeint nfsd_head_flag; 1099759Sbdestruct nfs_bufq nfs_bufq; 1109759Sbdestruct nqtimerhead nqtimerhead; 1119759Sbdestruct nqfhhashhead *nqfhhashtbl; 1129759Sbdeu_long nqfhhash; 1139759Sbde 11413416Sphk#ifndef NFS_NOSERVER 1159336Sdfr/* 1169336Sdfr * Mapping of old NFS Version 2 RPC numbers to generic numbers. 1179336Sdfr */ 1189336Sdfrint nfsv3_procid[NFS_NPROCS] = { 1199336Sdfr NFSPROC_NULL, 1209336Sdfr NFSPROC_GETATTR, 1219336Sdfr NFSPROC_SETATTR, 1229336Sdfr NFSPROC_NOOP, 1239336Sdfr NFSPROC_LOOKUP, 1249336Sdfr NFSPROC_READLINK, 1259336Sdfr NFSPROC_READ, 1269336Sdfr NFSPROC_NOOP, 1279336Sdfr NFSPROC_WRITE, 1289336Sdfr NFSPROC_CREATE, 1299336Sdfr NFSPROC_REMOVE, 1309336Sdfr NFSPROC_RENAME, 1319336Sdfr NFSPROC_LINK, 1329336Sdfr NFSPROC_SYMLINK, 1339336Sdfr NFSPROC_MKDIR, 1349336Sdfr NFSPROC_RMDIR, 1359336Sdfr NFSPROC_READDIR, 1369336Sdfr NFSPROC_FSSTAT, 1379336Sdfr NFSPROC_NOOP, 1389336Sdfr NFSPROC_NOOP, 1399336Sdfr NFSPROC_NOOP, 1409336Sdfr NFSPROC_NOOP, 1419336Sdfr NFSPROC_NOOP, 1429336Sdfr NFSPROC_NOOP, 1439336Sdfr NFSPROC_NOOP, 1449336Sdfr NFSPROC_NOOP 1459336Sdfr}; 1469336Sdfr 14713416Sphk#endif /* NFS_NOSERVER */ 1489336Sdfr/* 1499336Sdfr * and the reverse mapping from generic to Version 2 procedure numbers 1509336Sdfr */ 1519336Sdfrint nfsv2_procid[NFS_NPROCS] = { 1529336Sdfr NFSV2PROC_NULL, 1539336Sdfr NFSV2PROC_GETATTR, 1549336Sdfr NFSV2PROC_SETATTR, 1559336Sdfr NFSV2PROC_LOOKUP, 1569336Sdfr NFSV2PROC_NOOP, 1579336Sdfr NFSV2PROC_READLINK, 1589336Sdfr NFSV2PROC_READ, 1599336Sdfr NFSV2PROC_WRITE, 1609336Sdfr NFSV2PROC_CREATE, 1619336Sdfr NFSV2PROC_MKDIR, 1629336Sdfr NFSV2PROC_SYMLINK, 1639336Sdfr NFSV2PROC_CREATE, 1649336Sdfr NFSV2PROC_REMOVE, 1659336Sdfr NFSV2PROC_RMDIR, 1669336Sdfr NFSV2PROC_RENAME, 1679336Sdfr NFSV2PROC_LINK, 1689336Sdfr NFSV2PROC_READDIR, 1699336Sdfr NFSV2PROC_NOOP, 1709336Sdfr NFSV2PROC_STATFS, 1719336Sdfr NFSV2PROC_NOOP, 1729336Sdfr NFSV2PROC_NOOP, 1739336Sdfr NFSV2PROC_NOOP, 1749336Sdfr NFSV2PROC_NOOP, 1759336Sdfr NFSV2PROC_NOOP, 1769336Sdfr NFSV2PROC_NOOP, 1779336Sdfr NFSV2PROC_NOOP, 1789336Sdfr}; 1799336Sdfr 18013416Sphk#ifndef NFS_NOSERVER 1819336Sdfr/* 1829336Sdfr * Maps errno values to nfs error numbers. 1839336Sdfr * Use NFSERR_IO as the catch all for ones not specifically defined in 1849336Sdfr * RFC 1094. 1859336Sdfr */ 1869336Sdfrstatic u_char nfsrv_v2errmap[ELAST] = { 1879336Sdfr NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1889336Sdfr NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1899336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO, 1909336Sdfr NFSERR_IO, NFSERR_EXIST, NFSERR_IO, NFSERR_NODEV, NFSERR_NOTDIR, 1919336Sdfr NFSERR_ISDIR, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 1929336Sdfr NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS, 1939336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 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_NAMETOL, NFSERR_IO, NFSERR_IO, 2009336Sdfr NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE, 2019336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 2029336Sdfr NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 20336518Speter NFSERR_IO, NFSERR_IO, NFSERR_IO /* << Last is 83 */ 2049336Sdfr}; 2059336Sdfr 2069336Sdfr/* 2079336Sdfr * Maps errno values to nfs error numbers. 2089336Sdfr * Although it is not obvious whether or not NFS clients really care if 2099336Sdfr * a returned error value is in the specified list for the procedure, the 2109336Sdfr * safest thing to do is filter them appropriately. For Version 2, the 2119336Sdfr * X/Open XNFS document is the only specification that defines error values 2129336Sdfr * for each RPC (The RFC simply lists all possible error values for all RPCs), 2139336Sdfr * so I have decided to not do this for Version 2. 2149336Sdfr * The first entry is the default error return and the rest are the valid 2159336Sdfr * errors for that RPC in increasing numeric order. 2169336Sdfr */ 2179336Sdfrstatic short nfsv3err_null[] = { 2189336Sdfr 0, 2199336Sdfr 0, 2209336Sdfr}; 2219336Sdfr 2229336Sdfrstatic short nfsv3err_getattr[] = { 2239336Sdfr NFSERR_IO, 2249336Sdfr NFSERR_IO, 2259336Sdfr NFSERR_STALE, 2269336Sdfr NFSERR_BADHANDLE, 2279336Sdfr NFSERR_SERVERFAULT, 2289336Sdfr 0, 2299336Sdfr}; 2309336Sdfr 2319336Sdfrstatic short nfsv3err_setattr[] = { 2329336Sdfr NFSERR_IO, 2339336Sdfr NFSERR_PERM, 2349336Sdfr NFSERR_IO, 2359336Sdfr NFSERR_ACCES, 2369336Sdfr NFSERR_INVAL, 2379336Sdfr NFSERR_NOSPC, 2389336Sdfr NFSERR_ROFS, 2399336Sdfr NFSERR_DQUOT, 2409336Sdfr NFSERR_STALE, 2419336Sdfr NFSERR_BADHANDLE, 2429336Sdfr NFSERR_NOT_SYNC, 2439336Sdfr NFSERR_SERVERFAULT, 2449336Sdfr 0, 2459336Sdfr}; 2469336Sdfr 2479336Sdfrstatic short nfsv3err_lookup[] = { 2489336Sdfr NFSERR_IO, 2499336Sdfr NFSERR_NOENT, 2509336Sdfr NFSERR_IO, 2519336Sdfr NFSERR_ACCES, 2529336Sdfr NFSERR_NOTDIR, 2539336Sdfr NFSERR_NAMETOL, 2549336Sdfr NFSERR_STALE, 2559336Sdfr NFSERR_BADHANDLE, 2569336Sdfr NFSERR_SERVERFAULT, 2579336Sdfr 0, 2589336Sdfr}; 2599336Sdfr 2609336Sdfrstatic short nfsv3err_access[] = { 2619336Sdfr NFSERR_IO, 2629336Sdfr NFSERR_IO, 2639336Sdfr NFSERR_STALE, 2649336Sdfr NFSERR_BADHANDLE, 2659336Sdfr NFSERR_SERVERFAULT, 2669336Sdfr 0, 2679336Sdfr}; 2689336Sdfr 2699336Sdfrstatic short nfsv3err_readlink[] = { 2709336Sdfr NFSERR_IO, 2719336Sdfr NFSERR_IO, 2729336Sdfr NFSERR_ACCES, 2739336Sdfr NFSERR_INVAL, 2749336Sdfr NFSERR_STALE, 2759336Sdfr NFSERR_BADHANDLE, 2769336Sdfr NFSERR_NOTSUPP, 2779336Sdfr NFSERR_SERVERFAULT, 2789336Sdfr 0, 2799336Sdfr}; 2809336Sdfr 2819336Sdfrstatic short nfsv3err_read[] = { 2829336Sdfr NFSERR_IO, 2839336Sdfr NFSERR_IO, 2849336Sdfr NFSERR_NXIO, 2859336Sdfr NFSERR_ACCES, 2869336Sdfr NFSERR_INVAL, 2879336Sdfr NFSERR_STALE, 2889336Sdfr NFSERR_BADHANDLE, 2899336Sdfr NFSERR_SERVERFAULT, 2909336Sdfr 0, 2919336Sdfr}; 2929336Sdfr 2939336Sdfrstatic short nfsv3err_write[] = { 2949336Sdfr NFSERR_IO, 2959336Sdfr NFSERR_IO, 2969336Sdfr NFSERR_ACCES, 2979336Sdfr NFSERR_INVAL, 2989336Sdfr NFSERR_FBIG, 2999336Sdfr NFSERR_NOSPC, 3009336Sdfr NFSERR_ROFS, 3019336Sdfr NFSERR_DQUOT, 3029336Sdfr NFSERR_STALE, 3039336Sdfr NFSERR_BADHANDLE, 3049336Sdfr NFSERR_SERVERFAULT, 3059336Sdfr 0, 3069336Sdfr}; 3079336Sdfr 3089336Sdfrstatic short nfsv3err_create[] = { 3099336Sdfr NFSERR_IO, 3109336Sdfr NFSERR_IO, 3119336Sdfr NFSERR_ACCES, 3129336Sdfr NFSERR_EXIST, 3139336Sdfr NFSERR_NOTDIR, 3149336Sdfr NFSERR_NOSPC, 3159336Sdfr NFSERR_ROFS, 3169336Sdfr NFSERR_NAMETOL, 3179336Sdfr NFSERR_DQUOT, 3189336Sdfr NFSERR_STALE, 3199336Sdfr NFSERR_BADHANDLE, 3209336Sdfr NFSERR_NOTSUPP, 3219336Sdfr NFSERR_SERVERFAULT, 3229336Sdfr 0, 3239336Sdfr}; 3249336Sdfr 3259336Sdfrstatic short nfsv3err_mkdir[] = { 3269336Sdfr NFSERR_IO, 3279336Sdfr NFSERR_IO, 3289336Sdfr NFSERR_ACCES, 3299336Sdfr NFSERR_EXIST, 3309336Sdfr NFSERR_NOTDIR, 3319336Sdfr NFSERR_NOSPC, 3329336Sdfr NFSERR_ROFS, 3339336Sdfr NFSERR_NAMETOL, 3349336Sdfr NFSERR_DQUOT, 3359336Sdfr NFSERR_STALE, 3369336Sdfr NFSERR_BADHANDLE, 3379336Sdfr NFSERR_NOTSUPP, 3389336Sdfr NFSERR_SERVERFAULT, 3399336Sdfr 0, 3409336Sdfr}; 3419336Sdfr 3429336Sdfrstatic short nfsv3err_symlink[] = { 3439336Sdfr NFSERR_IO, 3449336Sdfr NFSERR_IO, 3459336Sdfr NFSERR_ACCES, 3469336Sdfr NFSERR_EXIST, 3479336Sdfr NFSERR_NOTDIR, 3489336Sdfr NFSERR_NOSPC, 3499336Sdfr NFSERR_ROFS, 3509336Sdfr NFSERR_NAMETOL, 3519336Sdfr NFSERR_DQUOT, 3529336Sdfr NFSERR_STALE, 3539336Sdfr NFSERR_BADHANDLE, 3549336Sdfr NFSERR_NOTSUPP, 3559336Sdfr NFSERR_SERVERFAULT, 3569336Sdfr 0, 3579336Sdfr}; 3589336Sdfr 3599336Sdfrstatic short nfsv3err_mknod[] = { 3609336Sdfr NFSERR_IO, 3619336Sdfr NFSERR_IO, 3629336Sdfr NFSERR_ACCES, 3639336Sdfr NFSERR_EXIST, 3649336Sdfr NFSERR_NOTDIR, 3659336Sdfr NFSERR_NOSPC, 3669336Sdfr NFSERR_ROFS, 3679336Sdfr NFSERR_NAMETOL, 3689336Sdfr NFSERR_DQUOT, 3699336Sdfr NFSERR_STALE, 3709336Sdfr NFSERR_BADHANDLE, 3719336Sdfr NFSERR_NOTSUPP, 3729336Sdfr NFSERR_SERVERFAULT, 3739336Sdfr NFSERR_BADTYPE, 3749336Sdfr 0, 3759336Sdfr}; 3769336Sdfr 3779336Sdfrstatic short nfsv3err_remove[] = { 3789336Sdfr NFSERR_IO, 3799336Sdfr NFSERR_NOENT, 3809336Sdfr NFSERR_IO, 3819336Sdfr NFSERR_ACCES, 3829336Sdfr NFSERR_NOTDIR, 3839336Sdfr NFSERR_ROFS, 3849336Sdfr NFSERR_NAMETOL, 3859336Sdfr NFSERR_STALE, 3869336Sdfr NFSERR_BADHANDLE, 3879336Sdfr NFSERR_SERVERFAULT, 3889336Sdfr 0, 3899336Sdfr}; 3909336Sdfr 3919336Sdfrstatic short nfsv3err_rmdir[] = { 3929336Sdfr NFSERR_IO, 3939336Sdfr NFSERR_NOENT, 3949336Sdfr NFSERR_IO, 3959336Sdfr NFSERR_ACCES, 3969336Sdfr NFSERR_EXIST, 3979336Sdfr NFSERR_NOTDIR, 3989336Sdfr NFSERR_INVAL, 3999336Sdfr NFSERR_ROFS, 4009336Sdfr NFSERR_NAMETOL, 4019336Sdfr NFSERR_NOTEMPTY, 4029336Sdfr NFSERR_STALE, 4039336Sdfr NFSERR_BADHANDLE, 4049336Sdfr NFSERR_NOTSUPP, 4059336Sdfr NFSERR_SERVERFAULT, 4069336Sdfr 0, 4079336Sdfr}; 4089336Sdfr 4099336Sdfrstatic short nfsv3err_rename[] = { 4109336Sdfr NFSERR_IO, 4119336Sdfr NFSERR_NOENT, 4129336Sdfr NFSERR_IO, 4139336Sdfr NFSERR_ACCES, 4149336Sdfr NFSERR_EXIST, 4159336Sdfr NFSERR_XDEV, 4169336Sdfr NFSERR_NOTDIR, 4179336Sdfr NFSERR_ISDIR, 4189336Sdfr NFSERR_INVAL, 4199336Sdfr NFSERR_NOSPC, 4209336Sdfr NFSERR_ROFS, 4219336Sdfr NFSERR_MLINK, 4229336Sdfr NFSERR_NAMETOL, 4239336Sdfr NFSERR_NOTEMPTY, 4249336Sdfr NFSERR_DQUOT, 4259336Sdfr NFSERR_STALE, 4269336Sdfr NFSERR_BADHANDLE, 4279336Sdfr NFSERR_NOTSUPP, 4289336Sdfr NFSERR_SERVERFAULT, 4299336Sdfr 0, 4309336Sdfr}; 4319336Sdfr 4329336Sdfrstatic short nfsv3err_link[] = { 4339336Sdfr NFSERR_IO, 4349336Sdfr NFSERR_IO, 4359336Sdfr NFSERR_ACCES, 4369336Sdfr NFSERR_EXIST, 4379336Sdfr NFSERR_XDEV, 4389336Sdfr NFSERR_NOTDIR, 4399336Sdfr NFSERR_INVAL, 4409336Sdfr NFSERR_NOSPC, 4419336Sdfr NFSERR_ROFS, 4429336Sdfr NFSERR_MLINK, 4439336Sdfr NFSERR_NAMETOL, 4449336Sdfr NFSERR_DQUOT, 4459336Sdfr NFSERR_STALE, 4469336Sdfr NFSERR_BADHANDLE, 4479336Sdfr NFSERR_NOTSUPP, 4489336Sdfr NFSERR_SERVERFAULT, 4499336Sdfr 0, 4509336Sdfr}; 4519336Sdfr 4529336Sdfrstatic short nfsv3err_readdir[] = { 4539336Sdfr NFSERR_IO, 4549336Sdfr NFSERR_IO, 4559336Sdfr NFSERR_ACCES, 4569336Sdfr NFSERR_NOTDIR, 4579336Sdfr NFSERR_STALE, 4589336Sdfr NFSERR_BADHANDLE, 4599336Sdfr NFSERR_BAD_COOKIE, 4609336Sdfr NFSERR_TOOSMALL, 4619336Sdfr NFSERR_SERVERFAULT, 4629336Sdfr 0, 4639336Sdfr}; 4649336Sdfr 4659336Sdfrstatic short nfsv3err_readdirplus[] = { 4669336Sdfr NFSERR_IO, 4679336Sdfr NFSERR_IO, 4689336Sdfr NFSERR_ACCES, 4699336Sdfr NFSERR_NOTDIR, 4709336Sdfr NFSERR_STALE, 4719336Sdfr NFSERR_BADHANDLE, 4729336Sdfr NFSERR_BAD_COOKIE, 4739336Sdfr NFSERR_NOTSUPP, 4749336Sdfr NFSERR_TOOSMALL, 4759336Sdfr NFSERR_SERVERFAULT, 4769336Sdfr 0, 4779336Sdfr}; 4789336Sdfr 4799336Sdfrstatic short nfsv3err_fsstat[] = { 4809336Sdfr NFSERR_IO, 4819336Sdfr NFSERR_IO, 4829336Sdfr NFSERR_STALE, 4839336Sdfr NFSERR_BADHANDLE, 4849336Sdfr NFSERR_SERVERFAULT, 4859336Sdfr 0, 4869336Sdfr}; 4879336Sdfr 4889336Sdfrstatic short nfsv3err_fsinfo[] = { 4899336Sdfr NFSERR_STALE, 4909336Sdfr NFSERR_STALE, 4919336Sdfr NFSERR_BADHANDLE, 4929336Sdfr NFSERR_SERVERFAULT, 4939336Sdfr 0, 4949336Sdfr}; 4959336Sdfr 4969336Sdfrstatic short nfsv3err_pathconf[] = { 4979336Sdfr NFSERR_STALE, 4989336Sdfr NFSERR_STALE, 4999336Sdfr NFSERR_BADHANDLE, 5009336Sdfr NFSERR_SERVERFAULT, 5019336Sdfr 0, 5029336Sdfr}; 5039336Sdfr 5049336Sdfrstatic short nfsv3err_commit[] = { 5059336Sdfr NFSERR_IO, 5069336Sdfr NFSERR_IO, 5079336Sdfr NFSERR_STALE, 5089336Sdfr NFSERR_BADHANDLE, 5099336Sdfr NFSERR_SERVERFAULT, 5109336Sdfr 0, 5119336Sdfr}; 5129336Sdfr 5139336Sdfrstatic short *nfsrv_v3errmap[] = { 5149336Sdfr nfsv3err_null, 5159336Sdfr nfsv3err_getattr, 5169336Sdfr nfsv3err_setattr, 5179336Sdfr nfsv3err_lookup, 5189336Sdfr nfsv3err_access, 5199336Sdfr nfsv3err_readlink, 5209336Sdfr nfsv3err_read, 5219336Sdfr nfsv3err_write, 5229336Sdfr nfsv3err_create, 5239336Sdfr nfsv3err_mkdir, 5249336Sdfr nfsv3err_symlink, 5259336Sdfr nfsv3err_mknod, 5269336Sdfr nfsv3err_remove, 5279336Sdfr nfsv3err_rmdir, 5289336Sdfr nfsv3err_rename, 5299336Sdfr nfsv3err_link, 5309336Sdfr nfsv3err_readdir, 5319336Sdfr nfsv3err_readdirplus, 5329336Sdfr nfsv3err_fsstat, 5339336Sdfr nfsv3err_fsinfo, 5349336Sdfr nfsv3err_pathconf, 5359336Sdfr nfsv3err_commit, 5369336Sdfr}; 5379336Sdfr 53813416Sphk#endif /* NFS_NOSERVER */ 53913416Sphk 5401541Srgrimesextern struct nfsrtt nfsrtt; 5411541Srgrimesextern time_t nqnfsstarttime; 5421541Srgrimesextern int nqsrv_clockskew; 5431541Srgrimesextern int nqsrv_writeslack; 5441541Srgrimesextern int nqsrv_maxlease; 5459336Sdfrextern struct nfsstats nfsstats; 5469336Sdfrextern int nqnfs_piggy[NFS_NPROCS]; 5479336Sdfrextern nfstype nfsv2_type[9]; 5489336Sdfrextern nfstype nfsv3_type[9]; 5499336Sdfrextern struct nfsnodehashhead *nfsnodehashtbl; 5509336Sdfrextern u_long nfsnodehash; 5511541Srgrimes 5522997Swollmanstruct getfh_args; 5532997Swollmanextern int getfh(struct proc *, struct getfh_args *, int *); 5542997Swollmanstruct nfssvc_args; 5552997Swollmanextern int nfssvc(struct proc *, struct nfssvc_args *, int *); 5562997Swollman 5573664SphkLIST_HEAD(nfsnodehashhead, nfsnode); 5583664Sphk 55927446Sdfrint nfs_webnamei __P((struct nameidata *, struct vnode *, struct proc *)); 56027446Sdfr 56134961Sphku_quad_t 56234961Sphknfs_curusec() 56334961Sphk{ 56434961Sphk struct timeval tv; 56534961Sphk 56634961Sphk getmicrotime(&tv); 56734961Sphk return ((u_quad_t)tv.tv_sec * 1000000 + (u_quad_t)tv.tv_usec); 56834961Sphk} 56934961Sphk 5701541Srgrimes/* 5711541Srgrimes * Create the header for an rpc request packet 5721541Srgrimes * The hsiz is the size of the rest of the nfs request header. 5731541Srgrimes * (just used to decide if a cluster is a good idea) 5741541Srgrimes */ 5751541Srgrimesstruct mbuf * 5761541Srgrimesnfsm_reqh(vp, procid, hsiz, bposp) 5771541Srgrimes struct vnode *vp; 5781541Srgrimes u_long procid; 5791541Srgrimes int hsiz; 5801541Srgrimes caddr_t *bposp; 5811541Srgrimes{ 5821541Srgrimes register struct mbuf *mb; 58336541Speter register u_int32_t *tl; 5841541Srgrimes register caddr_t bpos; 5851541Srgrimes struct mbuf *mb2; 5861541Srgrimes struct nfsmount *nmp; 5871541Srgrimes int nqflag; 5881541Srgrimes 5891541Srgrimes MGET(mb, M_WAIT, MT_DATA); 5901541Srgrimes if (hsiz >= MINCLSIZE) 5911541Srgrimes MCLGET(mb, M_WAIT); 5921541Srgrimes mb->m_len = 0; 5931541Srgrimes bpos = mtod(mb, caddr_t); 5948876Srgrimes 5951541Srgrimes /* 5961541Srgrimes * For NQNFS, add lease request. 5971541Srgrimes */ 5981541Srgrimes if (vp) { 5991541Srgrimes nmp = VFSTONFS(vp->v_mount); 6001541Srgrimes if (nmp->nm_flag & NFSMNT_NQNFS) { 6011541Srgrimes nqflag = NQNFS_NEEDLEASE(vp, procid); 6021541Srgrimes if (nqflag) { 60336541Speter nfsm_build(tl, u_int32_t *, 2*NFSX_UNSIGNED); 6041541Srgrimes *tl++ = txdr_unsigned(nqflag); 6051541Srgrimes *tl = txdr_unsigned(nmp->nm_leaseterm); 6061541Srgrimes } else { 60736541Speter nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 6081541Srgrimes *tl = 0; 6091541Srgrimes } 6101541Srgrimes } 6111541Srgrimes } 6121541Srgrimes /* Finally, return values */ 6131541Srgrimes *bposp = bpos; 6141541Srgrimes return (mb); 6151541Srgrimes} 6161541Srgrimes 6171541Srgrimes/* 6181541Srgrimes * Build the RPC header and fill in the authorization info. 6191541Srgrimes * The authorization string argument is only used when the credentials 6201541Srgrimes * come from outside of the kernel. 6211541Srgrimes * Returns the head of the mbuf list. 6221541Srgrimes */ 6231541Srgrimesstruct mbuf * 6249336Sdfrnfsm_rpchead(cr, nmflag, procid, auth_type, auth_len, auth_str, verf_len, 6259336Sdfr verf_str, mrest, mrest_len, mbp, xidp) 6261541Srgrimes register struct ucred *cr; 6279336Sdfr int nmflag; 6281541Srgrimes int procid; 6291541Srgrimes int auth_type; 6301541Srgrimes int auth_len; 6311541Srgrimes char *auth_str; 6329336Sdfr int verf_len; 6339336Sdfr char *verf_str; 6341541Srgrimes struct mbuf *mrest; 6351541Srgrimes int mrest_len; 6361541Srgrimes struct mbuf **mbp; 63736541Speter u_int32_t *xidp; 6381541Srgrimes{ 6391541Srgrimes register struct mbuf *mb; 64036541Speter register u_int32_t *tl; 6411541Srgrimes register caddr_t bpos; 6421541Srgrimes register int i; 6431541Srgrimes struct mbuf *mreq, *mb2; 6441541Srgrimes int siz, grpsiz, authsiz; 64536541Speter static u_int32_t base; 6461541Srgrimes 6471541Srgrimes authsiz = nfsm_rndup(auth_len); 6481541Srgrimes MGETHDR(mb, M_WAIT, MT_DATA); 6499336Sdfr if ((authsiz + 10 * NFSX_UNSIGNED) >= MINCLSIZE) { 6501541Srgrimes MCLGET(mb, M_WAIT); 6519336Sdfr } else if ((authsiz + 10 * NFSX_UNSIGNED) < MHLEN) { 6529336Sdfr MH_ALIGN(mb, authsiz + 10 * NFSX_UNSIGNED); 6531541Srgrimes } else { 6549336Sdfr MH_ALIGN(mb, 8 * NFSX_UNSIGNED); 6551541Srgrimes } 6561541Srgrimes mb->m_len = 0; 6571541Srgrimes mreq = mb; 6581541Srgrimes bpos = mtod(mb, caddr_t); 6591541Srgrimes 6601541Srgrimes /* 6611541Srgrimes * First the RPC header. 6621541Srgrimes */ 66336541Speter nfsm_build(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 66417186Sdfr 66535066Sphk /* Get a pretty random xid to start with */ 66635066Sphk if (!nfs_xid) 66735066Sphk nfs_xid = random(); 66817186Sdfr /* 66917186Sdfr * Skip zero xid if it should ever happen. 67017186Sdfr */ 6711541Srgrimes if (++nfs_xid == 0) 6721541Srgrimes nfs_xid++; 67317186Sdfr 6741541Srgrimes *tl++ = *xidp = txdr_unsigned(nfs_xid); 6751541Srgrimes *tl++ = rpc_call; 6761541Srgrimes *tl++ = rpc_vers; 6779336Sdfr if (nmflag & NFSMNT_NQNFS) { 6781541Srgrimes *tl++ = txdr_unsigned(NQNFS_PROG); 6799336Sdfr *tl++ = txdr_unsigned(NQNFS_VER3); 6801541Srgrimes } else { 6811541Srgrimes *tl++ = txdr_unsigned(NFS_PROG); 6829336Sdfr if (nmflag & NFSMNT_NFSV3) 6839336Sdfr *tl++ = txdr_unsigned(NFS_VER3); 6849336Sdfr else 6859336Sdfr *tl++ = txdr_unsigned(NFS_VER2); 6861541Srgrimes } 6879336Sdfr if (nmflag & NFSMNT_NFSV3) 6889336Sdfr *tl++ = txdr_unsigned(procid); 6899336Sdfr else 6909336Sdfr *tl++ = txdr_unsigned(nfsv2_procid[procid]); 6911541Srgrimes 6921541Srgrimes /* 6931541Srgrimes * And then the authorization cred. 6941541Srgrimes */ 6951541Srgrimes *tl++ = txdr_unsigned(auth_type); 6961541Srgrimes *tl = txdr_unsigned(authsiz); 6971541Srgrimes switch (auth_type) { 6981541Srgrimes case RPCAUTH_UNIX: 69936541Speter nfsm_build(tl, u_int32_t *, auth_len); 7001541Srgrimes *tl++ = 0; /* stamp ?? */ 7011541Srgrimes *tl++ = 0; /* NULL hostname */ 7021541Srgrimes *tl++ = txdr_unsigned(cr->cr_uid); 7031541Srgrimes *tl++ = txdr_unsigned(cr->cr_groups[0]); 7041541Srgrimes grpsiz = (auth_len >> 2) - 5; 7051541Srgrimes *tl++ = txdr_unsigned(grpsiz); 7061541Srgrimes for (i = 1; i <= grpsiz; i++) 7071541Srgrimes *tl++ = txdr_unsigned(cr->cr_groups[i]); 7081541Srgrimes break; 7099336Sdfr case RPCAUTH_KERB4: 7101541Srgrimes siz = auth_len; 7111541Srgrimes while (siz > 0) { 7121541Srgrimes if (M_TRAILINGSPACE(mb) == 0) { 7131541Srgrimes MGET(mb2, M_WAIT, MT_DATA); 7141541Srgrimes if (siz >= MINCLSIZE) 7151541Srgrimes MCLGET(mb2, M_WAIT); 7161541Srgrimes mb->m_next = mb2; 7171541Srgrimes mb = mb2; 7181541Srgrimes mb->m_len = 0; 7191541Srgrimes bpos = mtod(mb, caddr_t); 7201541Srgrimes } 7211541Srgrimes i = min(siz, M_TRAILINGSPACE(mb)); 7221541Srgrimes bcopy(auth_str, bpos, i); 7231541Srgrimes mb->m_len += i; 7241541Srgrimes auth_str += i; 7251541Srgrimes bpos += i; 7261541Srgrimes siz -= i; 7271541Srgrimes } 7281541Srgrimes if ((siz = (nfsm_rndup(auth_len) - auth_len)) > 0) { 7291541Srgrimes for (i = 0; i < siz; i++) 7301541Srgrimes *bpos++ = '\0'; 7311541Srgrimes mb->m_len += siz; 7321541Srgrimes } 7331541Srgrimes break; 7341541Srgrimes }; 7359336Sdfr 7369336Sdfr /* 7379336Sdfr * And the verifier... 7389336Sdfr */ 73936541Speter nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 7409336Sdfr if (verf_str) { 7419336Sdfr *tl++ = txdr_unsigned(RPCAUTH_KERB4); 7429336Sdfr *tl = txdr_unsigned(verf_len); 7439336Sdfr siz = verf_len; 7449336Sdfr while (siz > 0) { 7459336Sdfr if (M_TRAILINGSPACE(mb) == 0) { 7469336Sdfr MGET(mb2, M_WAIT, MT_DATA); 7479336Sdfr if (siz >= MINCLSIZE) 7489336Sdfr MCLGET(mb2, M_WAIT); 7499336Sdfr mb->m_next = mb2; 7509336Sdfr mb = mb2; 7519336Sdfr mb->m_len = 0; 7529336Sdfr bpos = mtod(mb, caddr_t); 7539336Sdfr } 7549336Sdfr i = min(siz, M_TRAILINGSPACE(mb)); 7559336Sdfr bcopy(verf_str, bpos, i); 7569336Sdfr mb->m_len += i; 7579336Sdfr verf_str += i; 7589336Sdfr bpos += i; 7599336Sdfr siz -= i; 7609336Sdfr } 7619336Sdfr if ((siz = (nfsm_rndup(verf_len) - verf_len)) > 0) { 7629336Sdfr for (i = 0; i < siz; i++) 7639336Sdfr *bpos++ = '\0'; 7649336Sdfr mb->m_len += siz; 7659336Sdfr } 7669336Sdfr } else { 7679336Sdfr *tl++ = txdr_unsigned(RPCAUTH_NULL); 7689336Sdfr *tl = 0; 7699336Sdfr } 7701541Srgrimes mb->m_next = mrest; 7719336Sdfr mreq->m_pkthdr.len = authsiz + 10 * NFSX_UNSIGNED + mrest_len; 7721541Srgrimes mreq->m_pkthdr.rcvif = (struct ifnet *)0; 7731541Srgrimes *mbp = mb; 7741541Srgrimes return (mreq); 7751541Srgrimes} 7761541Srgrimes 7771541Srgrimes/* 7781541Srgrimes * copies mbuf chain to the uio scatter/gather list 7791541Srgrimes */ 7801549Srgrimesint 7811541Srgrimesnfsm_mbuftouio(mrep, uiop, siz, dpos) 7821541Srgrimes struct mbuf **mrep; 7831541Srgrimes register struct uio *uiop; 7841541Srgrimes int siz; 7851541Srgrimes caddr_t *dpos; 7861541Srgrimes{ 7871541Srgrimes register char *mbufcp, *uiocp; 7881541Srgrimes register int xfer, left, len; 7891541Srgrimes register struct mbuf *mp; 7901541Srgrimes long uiosiz, rem; 7911541Srgrimes int error = 0; 7921541Srgrimes 7931541Srgrimes mp = *mrep; 7941541Srgrimes mbufcp = *dpos; 7951541Srgrimes len = mtod(mp, caddr_t)+mp->m_len-mbufcp; 7961541Srgrimes rem = nfsm_rndup(siz)-siz; 7971541Srgrimes while (siz > 0) { 7981541Srgrimes if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) 7991541Srgrimes return (EFBIG); 8001541Srgrimes left = uiop->uio_iov->iov_len; 8011541Srgrimes uiocp = uiop->uio_iov->iov_base; 8021541Srgrimes if (left > siz) 8031541Srgrimes left = siz; 8041541Srgrimes uiosiz = left; 8051541Srgrimes while (left > 0) { 8061541Srgrimes while (len == 0) { 8071541Srgrimes mp = mp->m_next; 8081541Srgrimes if (mp == NULL) 8091541Srgrimes return (EBADRPC); 8101541Srgrimes mbufcp = mtod(mp, caddr_t); 8111541Srgrimes len = mp->m_len; 8121541Srgrimes } 8131541Srgrimes xfer = (left > len) ? len : left; 8141541Srgrimes#ifdef notdef 8151541Srgrimes /* Not Yet.. */ 8161541Srgrimes if (uiop->uio_iov->iov_op != NULL) 8171541Srgrimes (*(uiop->uio_iov->iov_op)) 8181541Srgrimes (mbufcp, uiocp, xfer); 8191541Srgrimes else 8201541Srgrimes#endif 8211541Srgrimes if (uiop->uio_segflg == UIO_SYSSPACE) 8221541Srgrimes bcopy(mbufcp, uiocp, xfer); 8231541Srgrimes else 8241541Srgrimes copyout(mbufcp, uiocp, xfer); 8251541Srgrimes left -= xfer; 8261541Srgrimes len -= xfer; 8271541Srgrimes mbufcp += xfer; 8281541Srgrimes uiocp += xfer; 8291541Srgrimes uiop->uio_offset += xfer; 8301541Srgrimes uiop->uio_resid -= xfer; 8311541Srgrimes } 8321541Srgrimes if (uiop->uio_iov->iov_len <= siz) { 8331541Srgrimes uiop->uio_iovcnt--; 8341541Srgrimes uiop->uio_iov++; 8351541Srgrimes } else { 8361541Srgrimes uiop->uio_iov->iov_base += uiosiz; 8371541Srgrimes uiop->uio_iov->iov_len -= uiosiz; 8381541Srgrimes } 8391541Srgrimes siz -= uiosiz; 8401541Srgrimes } 8411541Srgrimes *dpos = mbufcp; 8421541Srgrimes *mrep = mp; 8431541Srgrimes if (rem > 0) { 8441541Srgrimes if (len < rem) 8451541Srgrimes error = nfs_adv(mrep, dpos, rem, len); 8461541Srgrimes else 8471541Srgrimes *dpos += rem; 8481541Srgrimes } 8491541Srgrimes return (error); 8501541Srgrimes} 8511541Srgrimes 8521541Srgrimes/* 85317186Sdfr * copies a uio scatter/gather list to an mbuf chain. 85417186Sdfr * NOTE: can ony handle iovcnt == 1 8551541Srgrimes */ 8561549Srgrimesint 8571541Srgrimesnfsm_uiotombuf(uiop, mq, siz, bpos) 8581541Srgrimes register struct uio *uiop; 8591541Srgrimes struct mbuf **mq; 8601541Srgrimes int siz; 8611541Srgrimes caddr_t *bpos; 8621541Srgrimes{ 8631541Srgrimes register char *uiocp; 8641541Srgrimes register struct mbuf *mp, *mp2; 8651541Srgrimes register int xfer, left, mlen; 8661541Srgrimes int uiosiz, clflg, rem; 8671541Srgrimes char *cp; 8681541Srgrimes 86936519Speter#ifdef DIAGNOSTIC 87017186Sdfr if (uiop->uio_iovcnt != 1) 87117186Sdfr panic("nfsm_uiotombuf: iovcnt != 1"); 87236519Speter#endif 87317186Sdfr 8741541Srgrimes if (siz > MLEN) /* or should it >= MCLBYTES ?? */ 8751541Srgrimes clflg = 1; 8761541Srgrimes else 8771541Srgrimes clflg = 0; 8781541Srgrimes rem = nfsm_rndup(siz)-siz; 8791541Srgrimes mp = mp2 = *mq; 8801541Srgrimes while (siz > 0) { 8811541Srgrimes left = uiop->uio_iov->iov_len; 8821541Srgrimes uiocp = uiop->uio_iov->iov_base; 8831541Srgrimes if (left > siz) 8841541Srgrimes left = siz; 8851541Srgrimes uiosiz = left; 8861541Srgrimes while (left > 0) { 8871541Srgrimes mlen = M_TRAILINGSPACE(mp); 8881541Srgrimes if (mlen == 0) { 8891541Srgrimes MGET(mp, M_WAIT, MT_DATA); 8901541Srgrimes if (clflg) 8911541Srgrimes MCLGET(mp, M_WAIT); 8921541Srgrimes mp->m_len = 0; 8931541Srgrimes mp2->m_next = mp; 8941541Srgrimes mp2 = mp; 8951541Srgrimes mlen = M_TRAILINGSPACE(mp); 8961541Srgrimes } 8971541Srgrimes xfer = (left > mlen) ? mlen : left; 8981541Srgrimes#ifdef notdef 8991541Srgrimes /* Not Yet.. */ 9001541Srgrimes if (uiop->uio_iov->iov_op != NULL) 9011541Srgrimes (*(uiop->uio_iov->iov_op)) 9021541Srgrimes (uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 9031541Srgrimes else 9041541Srgrimes#endif 9051541Srgrimes if (uiop->uio_segflg == UIO_SYSSPACE) 9061541Srgrimes bcopy(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 9071541Srgrimes else 9081541Srgrimes copyin(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 9091541Srgrimes mp->m_len += xfer; 9101541Srgrimes left -= xfer; 9111541Srgrimes uiocp += xfer; 9121541Srgrimes uiop->uio_offset += xfer; 9131541Srgrimes uiop->uio_resid -= xfer; 9141541Srgrimes } 91517186Sdfr uiop->uio_iov->iov_base += uiosiz; 91617186Sdfr uiop->uio_iov->iov_len -= uiosiz; 9171541Srgrimes siz -= uiosiz; 9181541Srgrimes } 9191541Srgrimes if (rem > 0) { 9201541Srgrimes if (rem > M_TRAILINGSPACE(mp)) { 9211541Srgrimes MGET(mp, M_WAIT, MT_DATA); 9221541Srgrimes mp->m_len = 0; 9231541Srgrimes mp2->m_next = mp; 9241541Srgrimes } 9251541Srgrimes cp = mtod(mp, caddr_t)+mp->m_len; 9261541Srgrimes for (left = 0; left < rem; left++) 9271541Srgrimes *cp++ = '\0'; 9281541Srgrimes mp->m_len += rem; 9291541Srgrimes *bpos = cp; 9301541Srgrimes } else 9311541Srgrimes *bpos = mtod(mp, caddr_t)+mp->m_len; 9321541Srgrimes *mq = mp; 9331541Srgrimes return (0); 9341541Srgrimes} 9351541Srgrimes 9361541Srgrimes/* 9371541Srgrimes * Help break down an mbuf chain by setting the first siz bytes contiguous 9381541Srgrimes * pointed to by returned val. 9391541Srgrimes * This is used by the macros nfsm_dissect and nfsm_dissecton for tough 9401541Srgrimes * cases. (The macros use the vars. dpos and dpos2) 9411541Srgrimes */ 9421549Srgrimesint 9431541Srgrimesnfsm_disct(mdp, dposp, siz, left, cp2) 9441541Srgrimes struct mbuf **mdp; 9451541Srgrimes caddr_t *dposp; 9461541Srgrimes int siz; 9471541Srgrimes int left; 9481541Srgrimes caddr_t *cp2; 9491541Srgrimes{ 9501541Srgrimes register struct mbuf *mp, *mp2; 9511541Srgrimes register int siz2, xfer; 9521541Srgrimes register caddr_t p; 9531541Srgrimes 9541541Srgrimes mp = *mdp; 9551541Srgrimes while (left == 0) { 9561541Srgrimes *mdp = mp = mp->m_next; 9571541Srgrimes if (mp == NULL) 9581541Srgrimes return (EBADRPC); 9591541Srgrimes left = mp->m_len; 9601541Srgrimes *dposp = mtod(mp, caddr_t); 9611541Srgrimes } 9621541Srgrimes if (left >= siz) { 9631541Srgrimes *cp2 = *dposp; 9641541Srgrimes *dposp += siz; 9651541Srgrimes } else if (mp->m_next == NULL) { 9661541Srgrimes return (EBADRPC); 9671541Srgrimes } else if (siz > MHLEN) { 9681541Srgrimes panic("nfs S too big"); 9691541Srgrimes } else { 9701541Srgrimes MGET(mp2, M_WAIT, MT_DATA); 9711541Srgrimes mp2->m_next = mp->m_next; 9721541Srgrimes mp->m_next = mp2; 9731541Srgrimes mp->m_len -= left; 9741541Srgrimes mp = mp2; 9751541Srgrimes *cp2 = p = mtod(mp, caddr_t); 9761541Srgrimes bcopy(*dposp, p, left); /* Copy what was left */ 9771541Srgrimes siz2 = siz-left; 9781541Srgrimes p += left; 9791541Srgrimes mp2 = mp->m_next; 9801541Srgrimes /* Loop around copying up the siz2 bytes */ 9811541Srgrimes while (siz2 > 0) { 9821541Srgrimes if (mp2 == NULL) 9831541Srgrimes return (EBADRPC); 9841541Srgrimes xfer = (siz2 > mp2->m_len) ? mp2->m_len : siz2; 9851541Srgrimes if (xfer > 0) { 9861541Srgrimes bcopy(mtod(mp2, caddr_t), p, xfer); 9871541Srgrimes NFSMADV(mp2, xfer); 9881541Srgrimes mp2->m_len -= xfer; 9891541Srgrimes p += xfer; 9901541Srgrimes siz2 -= xfer; 9911541Srgrimes } 9921541Srgrimes if (siz2 > 0) 9931541Srgrimes mp2 = mp2->m_next; 9941541Srgrimes } 9951541Srgrimes mp->m_len = siz; 9961541Srgrimes *mdp = mp2; 9971541Srgrimes *dposp = mtod(mp2, caddr_t); 9981541Srgrimes } 9991541Srgrimes return (0); 10001541Srgrimes} 10011541Srgrimes 10021541Srgrimes/* 10031541Srgrimes * Advance the position in the mbuf chain. 10041541Srgrimes */ 10051549Srgrimesint 10061541Srgrimesnfs_adv(mdp, dposp, offs, left) 10071541Srgrimes struct mbuf **mdp; 10081541Srgrimes caddr_t *dposp; 10091541Srgrimes int offs; 10101541Srgrimes int left; 10111541Srgrimes{ 10121541Srgrimes register struct mbuf *m; 10131541Srgrimes register int s; 10141541Srgrimes 10151541Srgrimes m = *mdp; 10161541Srgrimes s = left; 10171541Srgrimes while (s < offs) { 10181541Srgrimes offs -= s; 10191541Srgrimes m = m->m_next; 10201541Srgrimes if (m == NULL) 10211541Srgrimes return (EBADRPC); 10221541Srgrimes s = m->m_len; 10231541Srgrimes } 10241541Srgrimes *mdp = m; 10251541Srgrimes *dposp = mtod(m, caddr_t)+offs; 10261541Srgrimes return (0); 10271541Srgrimes} 10281541Srgrimes 10291541Srgrimes/* 10301541Srgrimes * Copy a string into mbufs for the hard cases... 10311541Srgrimes */ 10321549Srgrimesint 10331541Srgrimesnfsm_strtmbuf(mb, bpos, cp, siz) 10341541Srgrimes struct mbuf **mb; 10351541Srgrimes char **bpos; 103636511Speter const char *cp; 10371541Srgrimes long siz; 10381541Srgrimes{ 103936519Speter register struct mbuf *m1 = NULL, *m2; 10401541Srgrimes long left, xfer, len, tlen; 104136541Speter u_int32_t *tl; 10421541Srgrimes int putsize; 10431541Srgrimes 10441541Srgrimes putsize = 1; 10451541Srgrimes m2 = *mb; 10461541Srgrimes left = M_TRAILINGSPACE(m2); 10471541Srgrimes if (left > 0) { 104836541Speter tl = ((u_int32_t *)(*bpos)); 10491541Srgrimes *tl++ = txdr_unsigned(siz); 10501541Srgrimes putsize = 0; 10511541Srgrimes left -= NFSX_UNSIGNED; 10521541Srgrimes m2->m_len += NFSX_UNSIGNED; 10531541Srgrimes if (left > 0) { 10541541Srgrimes bcopy(cp, (caddr_t) tl, left); 10551541Srgrimes siz -= left; 10561541Srgrimes cp += left; 10571541Srgrimes m2->m_len += left; 10581541Srgrimes left = 0; 10591541Srgrimes } 10601541Srgrimes } 10611541Srgrimes /* Loop around adding mbufs */ 10621541Srgrimes while (siz > 0) { 10631541Srgrimes MGET(m1, M_WAIT, MT_DATA); 10641541Srgrimes if (siz > MLEN) 10651541Srgrimes MCLGET(m1, M_WAIT); 10661541Srgrimes m1->m_len = NFSMSIZ(m1); 10671541Srgrimes m2->m_next = m1; 10681541Srgrimes m2 = m1; 106936541Speter tl = mtod(m1, u_int32_t *); 10701541Srgrimes tlen = 0; 10711541Srgrimes if (putsize) { 10721541Srgrimes *tl++ = txdr_unsigned(siz); 10731541Srgrimes m1->m_len -= NFSX_UNSIGNED; 10741541Srgrimes tlen = NFSX_UNSIGNED; 10751541Srgrimes putsize = 0; 10761541Srgrimes } 10771541Srgrimes if (siz < m1->m_len) { 10781541Srgrimes len = nfsm_rndup(siz); 10791541Srgrimes xfer = siz; 10801541Srgrimes if (xfer < len) 10811541Srgrimes *(tl+(xfer>>2)) = 0; 10821541Srgrimes } else { 10831541Srgrimes xfer = len = m1->m_len; 10841541Srgrimes } 10851541Srgrimes bcopy(cp, (caddr_t) tl, xfer); 10861541Srgrimes m1->m_len = len+tlen; 10871541Srgrimes siz -= xfer; 10881541Srgrimes cp += xfer; 10891541Srgrimes } 10901541Srgrimes *mb = m1; 10911541Srgrimes *bpos = mtod(m1, caddr_t)+m1->m_len; 10921541Srgrimes return (0); 10931541Srgrimes} 10941541Srgrimes 10951541Srgrimes/* 10961541Srgrimes * Called once to initialize data structures... 10971541Srgrimes */ 10981549Srgrimesint 109922521Sdysonnfs_init(vfsp) 110022521Sdyson struct vfsconf *vfsp; 11011541Srgrimes{ 11021541Srgrimes register int i; 11031541Srgrimes 110436329Speter nfsmount_zone = zinit("NFSMOUNT", sizeof(struct nfsmount), 0, 0, 1); 110536329Speter 11069336Sdfr /* 11079336Sdfr * Check to see if major data structures haven't bloated. 11089336Sdfr */ 11099336Sdfr if (sizeof (struct nfssvc_sock) > NFS_SVCALLOC) { 11109336Sdfr printf("struct nfssvc_sock bloated (> %dbytes)\n",NFS_SVCALLOC); 11119336Sdfr printf("Try reducing NFS_UIDHASHSIZ\n"); 11129336Sdfr } 11139336Sdfr if (sizeof (struct nfsuid) > NFS_UIDALLOC) { 11149336Sdfr printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC); 11159336Sdfr printf("Try unionizing the nu_nickname and nu_flag fields\n"); 11169336Sdfr } 111722521Sdyson nfs_mount_type = vfsp->vfc_typenum; 11181541Srgrimes nfsrtt.pos = 0; 11191541Srgrimes rpc_vers = txdr_unsigned(RPC_VER2); 11201541Srgrimes rpc_call = txdr_unsigned(RPC_CALL); 11211541Srgrimes rpc_reply = txdr_unsigned(RPC_REPLY); 11221541Srgrimes rpc_msgdenied = txdr_unsigned(RPC_MSGDENIED); 11231541Srgrimes rpc_msgaccepted = txdr_unsigned(RPC_MSGACCEPTED); 11241541Srgrimes rpc_mismatch = txdr_unsigned(RPC_MISMATCH); 11251541Srgrimes rpc_autherr = txdr_unsigned(RPC_AUTHERR); 11261541Srgrimes rpc_auth_unix = txdr_unsigned(RPCAUTH_UNIX); 11279336Sdfr rpc_auth_kerb = txdr_unsigned(RPCAUTH_KERB4); 11281541Srgrimes nfs_prog = txdr_unsigned(NFS_PROG); 11299336Sdfr nqnfs_prog = txdr_unsigned(NQNFS_PROG); 11301541Srgrimes nfs_true = txdr_unsigned(TRUE); 11311541Srgrimes nfs_false = txdr_unsigned(FALSE); 11323664Sphk nfs_xdrneg1 = txdr_unsigned(-1); 11339336Sdfr nfs_ticks = (hz * NFS_TICKINTVL + 500) / 1000; 11349336Sdfr if (nfs_ticks < 1) 11359336Sdfr nfs_ticks = 1; 11361541Srgrimes /* Ensure async daemons disabled */ 113719449Sdfr for (i = 0; i < NFS_MAXASYNCDAEMON; i++) { 11381541Srgrimes nfs_iodwant[i] = (struct proc *)0; 113919449Sdfr nfs_iodmount[i] = (struct nfsmount *)0; 114019449Sdfr } 11411541Srgrimes nfs_nhinit(); /* Init the nfsnode table */ 114213416Sphk#ifndef NFS_NOSERVER 11431541Srgrimes nfsrv_init(0); /* Init server data structures */ 11441541Srgrimes nfsrv_initcache(); /* Init the server request cache */ 114513416Sphk#endif 11461541Srgrimes 11471541Srgrimes /* 11481541Srgrimes * Initialize the nqnfs server stuff. 11491541Srgrimes */ 11501541Srgrimes if (nqnfsstarttime == 0) { 11511541Srgrimes nqnfsstarttime = boottime.tv_sec + nqsrv_maxlease 11521541Srgrimes + nqsrv_clockskew + nqsrv_writeslack; 11531541Srgrimes NQLOADNOVRAM(nqnfsstarttime); 11543664Sphk CIRCLEQ_INIT(&nqtimerhead); 11553664Sphk nqfhhashtbl = hashinit(NQLCHSZ, M_NQLEASE, &nqfhhash); 11561541Srgrimes } 11571541Srgrimes 11581541Srgrimes /* 11591541Srgrimes * Initialize reply list and start timer 11601541Srgrimes */ 11613664Sphk TAILQ_INIT(&nfs_reqq); 116216365Sphk 11633305Sphk nfs_timer(0); 11641549Srgrimes 116516365Sphk 11662997Swollman /* 11672997Swollman * Set up lease_check and lease_updatetime so that other parts 11682997Swollman * of the system can call us, if we are loadable. 11692997Swollman */ 117013416Sphk#ifndef NFS_NOSERVER 117130738Sphk default_vnodeop_p[VOFFSET(vop_lease)] = (vop_t *)nqnfs_vop_lease_check; 117213416Sphk#endif 11732997Swollman lease_updatetime = nfs_lease_updatetime; 117422521Sdyson vfsp->vfc_refcount++; /* make us non-unloadable */ 11752997Swollman sysent[SYS_nfssvc].sy_narg = 2; 117630738Sphk sysent[SYS_nfssvc].sy_call = (sy_call_t *)nfssvc; 117713416Sphk#ifndef NFS_NOSERVER 11782997Swollman sysent[SYS_getfh].sy_narg = 2; 117930738Sphk sysent[SYS_getfh].sy_call = (sy_call_t *)getfh; 11802997Swollman#endif 11812997Swollman 11821549Srgrimes return (0); 11831541Srgrimes} 11841541Srgrimes 11851541Srgrimes/* 11861541Srgrimes * Attribute cache routines. 11871541Srgrimes * nfs_loadattrcache() - loads or updates the cache contents from attributes 11881541Srgrimes * that are on the mbuf list 11891541Srgrimes * nfs_getattrcache() - returns valid attributes if found in cache, returns 11901541Srgrimes * error otherwise 11911541Srgrimes */ 11921541Srgrimes 11931541Srgrimes/* 11941541Srgrimes * Load the attribute cache (that lives in the nfsnode entry) with 11951541Srgrimes * the values on the mbuf list and 11961541Srgrimes * Iff vap not NULL 11971541Srgrimes * copy the attributes to *vaper 11981541Srgrimes */ 11991549Srgrimesint 12001541Srgrimesnfs_loadattrcache(vpp, mdp, dposp, vaper) 12011541Srgrimes struct vnode **vpp; 12021541Srgrimes struct mbuf **mdp; 12031541Srgrimes caddr_t *dposp; 12041541Srgrimes struct vattr *vaper; 12051541Srgrimes{ 12061541Srgrimes register struct vnode *vp = *vpp; 12071541Srgrimes register struct vattr *vap; 12089336Sdfr register struct nfs_fattr *fp; 12093664Sphk register struct nfsnode *np; 121036541Speter register int32_t t1; 12119336Sdfr caddr_t cp2; 12129336Sdfr int error = 0, rdev; 12131541Srgrimes struct mbuf *md; 12141541Srgrimes enum vtype vtyp; 12151541Srgrimes u_short vmode; 12161541Srgrimes struct timespec mtime; 12171541Srgrimes struct vnode *nvp; 12189336Sdfr int v3 = NFS_ISV3(vp); 12191541Srgrimes 12201541Srgrimes md = *mdp; 12219336Sdfr t1 = (mtod(md, caddr_t) + md->m_len) - *dposp; 12229336Sdfr if (error = nfsm_disct(mdp, dposp, NFSX_FATTR(v3), t1, &cp2)) 12231541Srgrimes return (error); 12249336Sdfr fp = (struct nfs_fattr *)cp2; 12259336Sdfr if (v3) { 12269336Sdfr vtyp = nfsv3tov_type(fp->fa_type); 12279336Sdfr vmode = fxdr_unsigned(u_short, fp->fa_mode); 122816634Sbde rdev = makedev(fxdr_unsigned(int, fp->fa3_rdev.specdata1), 122916634Sbde fxdr_unsigned(int, fp->fa3_rdev.specdata2)); 12309336Sdfr fxdr_nfsv3time(&fp->fa3_mtime, &mtime); 12311541Srgrimes } else { 12329336Sdfr vtyp = nfsv2tov_type(fp->fa_type); 12339336Sdfr vmode = fxdr_unsigned(u_short, fp->fa_mode); 12349336Sdfr /* 12359336Sdfr * XXX 12369336Sdfr * 12379336Sdfr * The duplicate information returned in fa_type and fa_mode 12389336Sdfr * is an ambiguity in the NFS version 2 protocol. 12399336Sdfr * 12409336Sdfr * VREG should be taken literally as a regular file. If a 12419336Sdfr * server intents to return some type information differently 12429336Sdfr * in the upper bits of the mode field (e.g. for sockets, or 12439336Sdfr * FIFOs), NFSv2 mandates fa_type to be VNON. Anyway, we 12449336Sdfr * leave the examination of the mode bits even in the VREG 12459336Sdfr * case to avoid breakage for bogus servers, but we make sure 12469336Sdfr * that there are actually type bits set in the upper part of 12479336Sdfr * fa_mode (and failing that, trust the va_type field). 12489336Sdfr * 12499336Sdfr * NFSv3 cleared the issue, and requires fa_mode to not 12509336Sdfr * contain any type information (while also introduing sockets 12519336Sdfr * and FIFOs for fa_type). 12529336Sdfr */ 12539336Sdfr if (vtyp == VNON || (vtyp == VREG && (vmode & S_IFMT) != 0)) 12549336Sdfr vtyp = IFTOVT(vmode); 125536541Speter rdev = fxdr_unsigned(int32_t, fp->fa2_rdev); 12569336Sdfr fxdr_nfsv2time(&fp->fa2_mtime, &mtime); 12579336Sdfr 12589336Sdfr /* 12599336Sdfr * Really ugly NFSv2 kludge. 12609336Sdfr */ 12619336Sdfr if (vtyp == VCHR && rdev == 0xffffffff) 12629336Sdfr vtyp = VFIFO; 12631541Srgrimes } 12649336Sdfr 12651541Srgrimes /* 12661541Srgrimes * If v_type == VNON it is a new node, so fill in the v_type, 12678876Srgrimes * n_mtime fields. Check to see if it represents a special 12681541Srgrimes * device, and if so, check for a possible alias. Once the 12691541Srgrimes * correct vnode has been obtained, fill in the rest of the 12701541Srgrimes * information. 12711541Srgrimes */ 12721541Srgrimes np = VTONFS(vp); 127310219Sdfr if (vp->v_type != vtyp) { 12749336Sdfr vp->v_type = vtyp; 12751541Srgrimes if (vp->v_type == VFIFO) { 12761541Srgrimes vp->v_op = fifo_nfsv2nodeop_p; 12771541Srgrimes } 12781541Srgrimes if (vp->v_type == VCHR || vp->v_type == VBLK) { 12791541Srgrimes vp->v_op = spec_nfsv2nodeop_p; 12803305Sphk nvp = checkalias(vp, (dev_t)rdev, vp->v_mount); 12813305Sphk if (nvp) { 12821541Srgrimes /* 12831541Srgrimes * Discard unneeded vnode, but save its nfsnode. 128422521Sdyson * Since the nfsnode does not have a lock, its 128522521Sdyson * vnode lock has to be carried over. 12861541Srgrimes */ 128722521Sdyson nvp->v_vnlock = vp->v_vnlock; 128822521Sdyson vp->v_vnlock = NULL; 12891541Srgrimes nvp->v_data = vp->v_data; 12901541Srgrimes vp->v_data = NULL; 12911541Srgrimes vp->v_op = spec_vnodeop_p; 12921541Srgrimes vrele(vp); 12931541Srgrimes vgone(vp); 12941541Srgrimes /* 12951541Srgrimes * Reinitialize aliased node. 12961541Srgrimes */ 12971541Srgrimes np->n_vnode = nvp; 12981541Srgrimes *vpp = vp = nvp; 12991541Srgrimes } 13001541Srgrimes } 130118397Snate np->n_mtime = mtime.tv_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); 131636541Speter vap->va_fileid = fxdr_unsigned(int32_t, 131736541Speter fp->fa3_fileid.nfsuquad[1]); 13189336Sdfr fxdr_nfsv3time(&fp->fa3_atime, &vap->va_atime); 13199336Sdfr fxdr_nfsv3time(&fp->fa3_ctime, &vap->va_ctime); 13209336Sdfr vap->va_flags = 0; 13219336Sdfr vap->va_filerev = 0; 13221541Srgrimes } else { 13239336Sdfr vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 13249336Sdfr vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 13259336Sdfr vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 132636541Speter vap->va_size = fxdr_unsigned(u_int32_t, fp->fa2_size); 132736541Speter vap->va_blocksize = fxdr_unsigned(int32_t, fp->fa2_blocksize); 132836541Speter vap->va_bytes = fxdr_unsigned(int32_t, fp->fa2_blocks) 132936541Speter * NFS_FABLKSIZE; 133036541Speter vap->va_fileid = fxdr_unsigned(int32_t, fp->fa2_fileid); 13319336Sdfr fxdr_nfsv2time(&fp->fa2_atime, &vap->va_atime); 13321541Srgrimes vap->va_flags = 0; 133336541Speter vap->va_ctime.tv_sec = fxdr_unsigned(u_int32_t, 133436541Speter fp->fa2_ctime.nfsv2_sec); 133518397Snate vap->va_ctime.tv_nsec = 0; 133636541Speter vap->va_gen = fxdr_unsigned(u_int32_t,fp->fa2_ctime.nfsv2_usec); 13371541Srgrimes vap->va_filerev = 0; 13381541Srgrimes } 13391541Srgrimes if (vap->va_size != np->n_size) { 13401541Srgrimes if (vap->va_type == VREG) { 13411541Srgrimes if (np->n_flag & NMODIFIED) { 13421541Srgrimes if (vap->va_size < np->n_size) 13431541Srgrimes vap->va_size = np->n_size; 13441541Srgrimes else 13451541Srgrimes np->n_size = vap->va_size; 13461541Srgrimes } else 13471541Srgrimes np->n_size = vap->va_size; 13481541Srgrimes vnode_pager_setsize(vp, (u_long)np->n_size); 13491541Srgrimes } else 13501541Srgrimes np->n_size = vap->va_size; 13511541Srgrimes } 135234961Sphk np->n_attrstamp = time_second; 13531541Srgrimes if (vaper != NULL) { 13541541Srgrimes bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); 13551541Srgrimes if (np->n_flag & NCHG) { 13569336Sdfr if (np->n_flag & NACC) 13579336Sdfr vaper->va_atime = np->n_atim; 13589336Sdfr if (np->n_flag & NUPD) 13599336Sdfr vaper->va_mtime = np->n_mtim; 13601541Srgrimes } 13611541Srgrimes } 13621541Srgrimes return (0); 13631541Srgrimes} 13641541Srgrimes 136536176Speter#ifdef NFS_ACDEBUG 136636176Speter#include <sys/sysctl.h> 136736176Speterstatic int nfs_acdebug; 136836176SpeterSYSCTL_INT(_vfs_nfs, OID_AUTO, acdebug, CTLFLAG_RW, &nfs_acdebug, 0, ""); 136936176Speter#endif 137036176Speter 13711541Srgrimes/* 13721541Srgrimes * Check the time stamp 13731541Srgrimes * If the cache is valid, copy contents to *vap and return 0 13741541Srgrimes * otherwise return an error 13751541Srgrimes */ 13761549Srgrimesint 13771541Srgrimesnfs_getattrcache(vp, vaper) 13781541Srgrimes register struct vnode *vp; 13791541Srgrimes struct vattr *vaper; 13801541Srgrimes{ 138136176Speter register struct nfsnode *np; 13821541Srgrimes register struct vattr *vap; 138336176Speter struct nfsmount *nmp; 138436176Speter int timeo; 13851541Srgrimes 138636176Speter np = VTONFS(vp); 138736176Speter vap = &np->n_vattr; 138836176Speter nmp = VFSTONFS(vp->v_mount); 138936176Speter /* XXX n_mtime doesn't seem to be updated on a miss-and-reload */ 139036176Speter timeo = (time_second - np->n_mtime) / 10; 139136176Speter 139236176Speter#ifdef NFS_ACDEBUG 139336176Speter if (nfs_acdebug>1) 139436176Speter printf("nfs_getattrcache: initial timeo = %d\n", timeo); 139536176Speter#endif 139636176Speter 139736176Speter if (vap->va_type == VDIR) { 139836176Speter if ((np->n_flag & NMODIFIED) || timeo < nmp->nm_acdirmin) 139936176Speter timeo = nmp->nm_acdirmin; 140036176Speter else if (timeo > nmp->nm_acdirmax) 140136176Speter timeo = nmp->nm_acdirmax; 140236176Speter } else { 140336176Speter if ((np->n_flag & NMODIFIED) || timeo < nmp->nm_acregmin) 140436176Speter timeo = nmp->nm_acregmin; 140536176Speter else if (timeo > nmp->nm_acregmax) 140636176Speter timeo = nmp->nm_acregmax; 140736176Speter } 140836176Speter 140936176Speter#ifdef NFS_ACDEBUG 141036176Speter if (nfs_acdebug > 2) 141136176Speter printf("acregmin %d; acregmax %d; acdirmin %d; acdirmax %d\n", 141236176Speter nmp->nm_acregmin, nmp->nm_acregmax, 141336176Speter nmp->nm_acdirmin, nmp->nm_acdirmax); 141436176Speter 141536176Speter if (nfs_acdebug) 141636176Speter printf("nfs_getattrcache: age = %d; final timeo = %d\n",r 141736176Speter (time_second - np->n_attrstamp), timeo); 141836176Speter#endif 141936176Speter 142036176Speter if ((time_second - np->n_attrstamp) >= timeo) { 14211541Srgrimes nfsstats.attrcache_misses++; 14221541Srgrimes return (ENOENT); 14231541Srgrimes } 14241541Srgrimes nfsstats.attrcache_hits++; 14251541Srgrimes if (vap->va_size != np->n_size) { 14261541Srgrimes if (vap->va_type == VREG) { 14271541Srgrimes if (np->n_flag & NMODIFIED) { 14281541Srgrimes if (vap->va_size < np->n_size) 14291541Srgrimes vap->va_size = np->n_size; 14301541Srgrimes else 14311541Srgrimes np->n_size = vap->va_size; 14321541Srgrimes } else 14331541Srgrimes np->n_size = vap->va_size; 14341541Srgrimes vnode_pager_setsize(vp, (u_long)np->n_size); 14351541Srgrimes } else 14361541Srgrimes np->n_size = vap->va_size; 14371541Srgrimes } 14381541Srgrimes bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(struct vattr)); 14391541Srgrimes if (np->n_flag & NCHG) { 14409336Sdfr if (np->n_flag & NACC) 14419336Sdfr vaper->va_atime = np->n_atim; 14429336Sdfr if (np->n_flag & NUPD) 14439336Sdfr vaper->va_mtime = np->n_mtim; 14441541Srgrimes } 14451541Srgrimes return (0); 14461541Srgrimes} 14471541Srgrimes 144813416Sphk#ifndef NFS_NOSERVER 14491541Srgrimes/* 145027446Sdfr * Set up nameidata for a lookup() call and do it. 145127446Sdfr * 145227446Sdfr * If pubflag is set, this call is done for a lookup operation on the 145327446Sdfr * public filehandle. In that case we allow crossing mountpoints and 145427446Sdfr * absolute pathnames. However, the caller is expected to check that 145527446Sdfr * the lookup result is within the public fs, and deny access if 145627446Sdfr * it is not. 14571541Srgrimes */ 14581549Srgrimesint 145927446Sdfrnfs_namei(ndp, fhp, len, slp, nam, mdp, dposp, retdirp, p, kerbflag, pubflag) 14601541Srgrimes register struct nameidata *ndp; 14611541Srgrimes fhandle_t *fhp; 14621541Srgrimes int len; 14631541Srgrimes struct nfssvc_sock *slp; 146428270Swollman struct sockaddr *nam; 14651541Srgrimes struct mbuf **mdp; 14661541Srgrimes caddr_t *dposp; 14679336Sdfr struct vnode **retdirp; 14681541Srgrimes struct proc *p; 146927446Sdfr int kerbflag, pubflag; 14701541Srgrimes{ 14711541Srgrimes register int i, rem; 14721541Srgrimes register struct mbuf *md; 147327446Sdfr register char *fromcp, *tocp, *cp; 147427446Sdfr struct iovec aiov; 147527446Sdfr struct uio auio; 14761541Srgrimes struct vnode *dp; 147727446Sdfr int error, rdonly, linklen; 14781541Srgrimes struct componentname *cnp = &ndp->ni_cnd; 14791541Srgrimes 14809336Sdfr *retdirp = (struct vnode *)0; 148129653Sdyson cnp->cn_pnbuf = zalloc(namei_zone); 148229653Sdyson 14831541Srgrimes /* 14841541Srgrimes * Copy the name from the mbuf list to ndp->ni_pnbuf 14851541Srgrimes * and set the various ndp fields appropriately. 14861541Srgrimes */ 14871541Srgrimes fromcp = *dposp; 14881541Srgrimes tocp = cnp->cn_pnbuf; 14891541Srgrimes md = *mdp; 14901541Srgrimes rem = mtod(md, caddr_t) + md->m_len - fromcp; 14911541Srgrimes cnp->cn_hash = 0; 14921541Srgrimes for (i = 0; i < len; i++) { 14931541Srgrimes while (rem == 0) { 14941541Srgrimes md = md->m_next; 14951541Srgrimes if (md == NULL) { 14961541Srgrimes error = EBADRPC; 14971541Srgrimes goto out; 14981541Srgrimes } 14991541Srgrimes fromcp = mtod(md, caddr_t); 15001541Srgrimes rem = md->m_len; 15011541Srgrimes } 150227446Sdfr if (*fromcp == '\0' || (!pubflag && *fromcp == '/')) { 15039336Sdfr error = EACCES; 15041541Srgrimes goto out; 15051541Srgrimes } 15061541Srgrimes cnp->cn_hash += (unsigned char)*fromcp; 15071541Srgrimes *tocp++ = *fromcp++; 15081541Srgrimes rem--; 15091541Srgrimes } 15101541Srgrimes *tocp = '\0'; 15111541Srgrimes *mdp = md; 15121541Srgrimes *dposp = fromcp; 15131541Srgrimes len = nfsm_rndup(len)-len; 15141541Srgrimes if (len > 0) { 15151541Srgrimes if (rem >= len) 15161541Srgrimes *dposp += len; 151727609Sdfr else if ((error = nfs_adv(mdp, dposp, len, rem)) != 0) 15189336Sdfr goto out; 15191541Srgrimes } 152027446Sdfr 15211541Srgrimes /* 15221541Srgrimes * Extract and set starting directory. 15231541Srgrimes */ 152427446Sdfr error = nfsrv_fhtovp(fhp, FALSE, &dp, ndp->ni_cnd.cn_cred, slp, 152527446Sdfr nam, &rdonly, kerbflag, pubflag); 152627446Sdfr if (error) 15271541Srgrimes goto out; 15281541Srgrimes if (dp->v_type != VDIR) { 152917761Sdyson vrele(dp); 15301541Srgrimes error = ENOTDIR; 15311541Srgrimes goto out; 15321541Srgrimes } 153327446Sdfr 153427446Sdfr if (rdonly) 153527446Sdfr cnp->cn_flags |= RDONLY; 153627446Sdfr 153727609Sdfr *retdirp = dp; 153827609Sdfr 153927446Sdfr if (pubflag) { 154027446Sdfr /* 154127446Sdfr * Oh joy. For WebNFS, handle those pesky '%' escapes, 154227446Sdfr * and the 'native path' indicator. 154327446Sdfr */ 154429653Sdyson cp = zalloc(namei_zone); 154527446Sdfr fromcp = cnp->cn_pnbuf; 154627446Sdfr tocp = cp; 154727446Sdfr if ((unsigned char)*fromcp >= WEBNFS_SPECCHAR_START) { 154827446Sdfr switch ((unsigned char)*fromcp) { 154927446Sdfr case WEBNFS_NATIVE_CHAR: 155027446Sdfr /* 155127446Sdfr * 'Native' path for us is the same 155227446Sdfr * as a path according to the NFS spec, 155327446Sdfr * just skip the escape char. 155427446Sdfr */ 155527446Sdfr fromcp++; 155627446Sdfr break; 155727446Sdfr /* 155827446Sdfr * More may be added in the future, range 0x80-0xff 155927446Sdfr */ 156027446Sdfr default: 156127446Sdfr error = EIO; 156229653Sdyson zfree(namei_zone, cp); 156327446Sdfr goto out; 156427446Sdfr } 156527446Sdfr } 156627446Sdfr /* 156727446Sdfr * Translate the '%' escapes, URL-style. 156827446Sdfr */ 156927446Sdfr while (*fromcp != '\0') { 157027446Sdfr if (*fromcp == WEBNFS_ESC_CHAR) { 157127446Sdfr if (fromcp[1] != '\0' && fromcp[2] != '\0') { 157227446Sdfr fromcp++; 157327446Sdfr *tocp++ = HEXSTRTOI(fromcp); 157427446Sdfr fromcp += 2; 157527446Sdfr continue; 157627446Sdfr } else { 157727446Sdfr error = ENOENT; 157829653Sdyson zfree(namei_zone, cp); 157927446Sdfr goto out; 158027446Sdfr } 158127446Sdfr } else 158227446Sdfr *tocp++ = *fromcp++; 158327446Sdfr } 158427446Sdfr *tocp = '\0'; 158529653Sdyson zfree(namei_zone, cnp->cn_pnbuf); 158627446Sdfr cnp->cn_pnbuf = cp; 158727446Sdfr } 158827446Sdfr 158927446Sdfr ndp->ni_pathlen = (tocp - cnp->cn_pnbuf) + 1; 159027446Sdfr ndp->ni_segflg = UIO_SYSSPACE; 159127446Sdfr 159227446Sdfr if (pubflag) { 159327446Sdfr ndp->ni_rootdir = rootvnode; 159427446Sdfr ndp->ni_loopcnt = 0; 159527446Sdfr if (cnp->cn_pnbuf[0] == '/') 159627446Sdfr dp = rootvnode; 159727446Sdfr } else { 159827609Sdfr cnp->cn_flags |= NOCROSSMOUNT; 159927446Sdfr } 160027446Sdfr 160127446Sdfr cnp->cn_proc = p; 16029336Sdfr VREF(dp); 160327446Sdfr 160427609Sdfr for (;;) { 160527446Sdfr cnp->cn_nameptr = cnp->cn_pnbuf; 16061541Srgrimes ndp->ni_startdir = dp; 16071541Srgrimes /* 16081541Srgrimes * And call lookup() to do the real work 16091541Srgrimes */ 161027609Sdfr error = lookup(ndp); 161127609Sdfr if (error) 161227446Sdfr break; 16131541Srgrimes /* 16141541Srgrimes * Check for encountering a symbolic link 16151541Srgrimes */ 161627446Sdfr if ((cnp->cn_flags & ISSYMLINK) == 0) { 161727446Sdfr nfsrv_object_create(ndp->ni_vp); 161827446Sdfr if (cnp->cn_flags & (SAVENAME | SAVESTART)) { 161927446Sdfr cnp->cn_flags |= HASBUF; 162027446Sdfr return (0); 162127446Sdfr } 162227446Sdfr break; 162327446Sdfr } else { 16241541Srgrimes if ((cnp->cn_flags & LOCKPARENT) && ndp->ni_pathlen == 1) 162527446Sdfr VOP_UNLOCK(ndp->ni_dvp, 0, p); 162627446Sdfr if (!pubflag) { 162727446Sdfr vrele(ndp->ni_dvp); 162827446Sdfr vput(ndp->ni_vp); 162927446Sdfr ndp->ni_vp = NULL; 163027446Sdfr error = EINVAL; 163127446Sdfr break; 163227446Sdfr } 163327446Sdfr 163427446Sdfr if (ndp->ni_loopcnt++ >= MAXSYMLINKS) { 163527446Sdfr error = ELOOP; 163627446Sdfr break; 163727446Sdfr } 163827609Sdfr if (ndp->ni_pathlen > 1) 163929653Sdyson cp = zalloc(namei_zone); 16401541Srgrimes else 164127446Sdfr cp = cnp->cn_pnbuf; 164227446Sdfr aiov.iov_base = cp; 164327446Sdfr aiov.iov_len = MAXPATHLEN; 164427446Sdfr auio.uio_iov = &aiov; 164527446Sdfr auio.uio_iovcnt = 1; 164627446Sdfr auio.uio_offset = 0; 164727446Sdfr auio.uio_rw = UIO_READ; 164827446Sdfr auio.uio_segflg = UIO_SYSSPACE; 164927446Sdfr auio.uio_procp = (struct proc *)0; 165027446Sdfr auio.uio_resid = MAXPATHLEN; 165127446Sdfr error = VOP_READLINK(ndp->ni_vp, &auio, cnp->cn_cred); 165227446Sdfr if (error) { 165327446Sdfr badlink: 165427446Sdfr if (ndp->ni_pathlen > 1) 165529653Sdyson zfree(namei_zone, cp); 165627446Sdfr break; 165727446Sdfr } 165827446Sdfr linklen = MAXPATHLEN - auio.uio_resid; 165927446Sdfr if (linklen == 0) { 166027446Sdfr error = ENOENT; 166127446Sdfr goto badlink; 166227446Sdfr } 166327446Sdfr if (linklen + ndp->ni_pathlen >= MAXPATHLEN) { 166427446Sdfr error = ENAMETOOLONG; 166527446Sdfr goto badlink; 166627446Sdfr } 166727446Sdfr if (ndp->ni_pathlen > 1) { 166827446Sdfr bcopy(ndp->ni_next, cp + linklen, ndp->ni_pathlen); 166929653Sdyson zfree(namei_zone, cnp->cn_pnbuf); 167027446Sdfr cnp->cn_pnbuf = cp; 167127446Sdfr } else 167227446Sdfr cnp->cn_pnbuf[linklen] = '\0'; 167327446Sdfr ndp->ni_pathlen += linklen; 16741541Srgrimes vput(ndp->ni_vp); 167527446Sdfr dp = ndp->ni_dvp; 167627446Sdfr /* 167727446Sdfr * Check if root directory should replace current directory. 167827446Sdfr */ 167927446Sdfr if (cnp->cn_pnbuf[0] == '/') { 168027446Sdfr vrele(dp); 168127446Sdfr dp = ndp->ni_rootdir; 168227446Sdfr VREF(dp); 168327446Sdfr } 16841541Srgrimes } 168527609Sdfr } 16861541Srgrimesout: 168729653Sdyson zfree(namei_zone, cnp->cn_pnbuf); 16881541Srgrimes return (error); 16891541Srgrimes} 16901541Srgrimes 16911541Srgrimes/* 16921541Srgrimes * A fiddled version of m_adj() that ensures null fill to a long 16931541Srgrimes * boundary and only trims off the back end 16941541Srgrimes */ 16951541Srgrimesvoid 16961541Srgrimesnfsm_adj(mp, len, nul) 16971541Srgrimes struct mbuf *mp; 16981541Srgrimes register int len; 16991541Srgrimes int nul; 17001541Srgrimes{ 17011541Srgrimes register struct mbuf *m; 17021541Srgrimes register int count, i; 17031541Srgrimes register char *cp; 17041541Srgrimes 17051541Srgrimes /* 17061541Srgrimes * Trim from tail. Scan the mbuf chain, 17071541Srgrimes * calculating its length and finding the last mbuf. 17081541Srgrimes * If the adjustment only affects this mbuf, then just 17091541Srgrimes * adjust and return. Otherwise, rescan and truncate 17101541Srgrimes * after the remaining size. 17111541Srgrimes */ 17121541Srgrimes count = 0; 17131541Srgrimes m = mp; 17141541Srgrimes for (;;) { 17151541Srgrimes count += m->m_len; 17161541Srgrimes if (m->m_next == (struct mbuf *)0) 17171541Srgrimes break; 17181541Srgrimes m = m->m_next; 17191541Srgrimes } 17201541Srgrimes if (m->m_len > len) { 17211541Srgrimes m->m_len -= len; 17221541Srgrimes if (nul > 0) { 17231541Srgrimes cp = mtod(m, caddr_t)+m->m_len-nul; 17241541Srgrimes for (i = 0; i < nul; i++) 17251541Srgrimes *cp++ = '\0'; 17261541Srgrimes } 17271541Srgrimes return; 17281541Srgrimes } 17291541Srgrimes count -= len; 17301541Srgrimes if (count < 0) 17311541Srgrimes count = 0; 17321541Srgrimes /* 17331541Srgrimes * Correct length for chain is "count". 17341541Srgrimes * Find the mbuf with last data, adjust its length, 17351541Srgrimes * and toss data from remaining mbufs on chain. 17361541Srgrimes */ 17371541Srgrimes for (m = mp; m; m = m->m_next) { 17381541Srgrimes if (m->m_len >= count) { 17391541Srgrimes m->m_len = count; 17401541Srgrimes if (nul > 0) { 17411541Srgrimes cp = mtod(m, caddr_t)+m->m_len-nul; 17421541Srgrimes for (i = 0; i < nul; i++) 17431541Srgrimes *cp++ = '\0'; 17441541Srgrimes } 17451541Srgrimes break; 17461541Srgrimes } 17471541Srgrimes count -= m->m_len; 17481541Srgrimes } 17493305Sphk for (m = m->m_next;m;m = m->m_next) 17501541Srgrimes m->m_len = 0; 17511541Srgrimes} 17521541Srgrimes 17531541Srgrimes/* 17549336Sdfr * Make these functions instead of macros, so that the kernel text size 17559336Sdfr * doesn't get too big... 17569336Sdfr */ 17579336Sdfrvoid 17589336Sdfrnfsm_srvwcc(nfsd, before_ret, before_vap, after_ret, after_vap, mbp, bposp) 17599336Sdfr struct nfsrv_descript *nfsd; 17609336Sdfr int before_ret; 17619336Sdfr register struct vattr *before_vap; 17629336Sdfr int after_ret; 17639336Sdfr struct vattr *after_vap; 17649336Sdfr struct mbuf **mbp; 17659336Sdfr char **bposp; 17669336Sdfr{ 17679336Sdfr register struct mbuf *mb = *mbp, *mb2; 17689336Sdfr register char *bpos = *bposp; 176936541Speter register u_int32_t *tl; 17709336Sdfr 17719336Sdfr if (before_ret) { 177236541Speter nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 17739336Sdfr *tl = nfs_false; 17749336Sdfr } else { 177536541Speter nfsm_build(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 17769336Sdfr *tl++ = nfs_true; 17779336Sdfr txdr_hyper(&(before_vap->va_size), tl); 17789336Sdfr tl += 2; 17799336Sdfr txdr_nfsv3time(&(before_vap->va_mtime), tl); 17809336Sdfr tl += 2; 17819336Sdfr txdr_nfsv3time(&(before_vap->va_ctime), tl); 17829336Sdfr } 17839336Sdfr *bposp = bpos; 17849336Sdfr *mbp = mb; 17859336Sdfr nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp); 17869336Sdfr} 17879336Sdfr 17889336Sdfrvoid 17899336Sdfrnfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp) 17909336Sdfr struct nfsrv_descript *nfsd; 17919336Sdfr int after_ret; 17929336Sdfr struct vattr *after_vap; 17939336Sdfr struct mbuf **mbp; 17949336Sdfr char **bposp; 17959336Sdfr{ 17969336Sdfr register struct mbuf *mb = *mbp, *mb2; 17979336Sdfr register char *bpos = *bposp; 179836541Speter register u_int32_t *tl; 17999336Sdfr register struct nfs_fattr *fp; 18009336Sdfr 18019336Sdfr if (after_ret) { 180236541Speter nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 18039336Sdfr *tl = nfs_false; 18049336Sdfr } else { 180536541Speter nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_V3FATTR); 18069336Sdfr *tl++ = nfs_true; 18079336Sdfr fp = (struct nfs_fattr *)tl; 18089336Sdfr nfsm_srvfattr(nfsd, after_vap, fp); 18099336Sdfr } 18109336Sdfr *mbp = mb; 18119336Sdfr *bposp = bpos; 18129336Sdfr} 18139336Sdfr 18149336Sdfrvoid 18159336Sdfrnfsm_srvfattr(nfsd, vap, fp) 18169336Sdfr register struct nfsrv_descript *nfsd; 18179336Sdfr register struct vattr *vap; 18189336Sdfr register struct nfs_fattr *fp; 18199336Sdfr{ 18209336Sdfr 18219336Sdfr fp->fa_nlink = txdr_unsigned(vap->va_nlink); 18229336Sdfr fp->fa_uid = txdr_unsigned(vap->va_uid); 18239336Sdfr fp->fa_gid = txdr_unsigned(vap->va_gid); 18249336Sdfr if (nfsd->nd_flag & ND_NFSV3) { 18259336Sdfr fp->fa_type = vtonfsv3_type(vap->va_type); 18269336Sdfr fp->fa_mode = vtonfsv3_mode(vap->va_mode); 18279336Sdfr txdr_hyper(&vap->va_size, &fp->fa3_size); 18289336Sdfr txdr_hyper(&vap->va_bytes, &fp->fa3_used); 18299336Sdfr fp->fa3_rdev.specdata1 = txdr_unsigned(major(vap->va_rdev)); 18309336Sdfr fp->fa3_rdev.specdata2 = txdr_unsigned(minor(vap->va_rdev)); 18319336Sdfr fp->fa3_fsid.nfsuquad[0] = 0; 18329336Sdfr fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(vap->va_fsid); 18339336Sdfr fp->fa3_fileid.nfsuquad[0] = 0; 18349336Sdfr fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(vap->va_fileid); 18359336Sdfr txdr_nfsv3time(&vap->va_atime, &fp->fa3_atime); 18369336Sdfr txdr_nfsv3time(&vap->va_mtime, &fp->fa3_mtime); 18379336Sdfr txdr_nfsv3time(&vap->va_ctime, &fp->fa3_ctime); 18389336Sdfr } else { 18399336Sdfr fp->fa_type = vtonfsv2_type(vap->va_type); 18409336Sdfr fp->fa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 18419336Sdfr fp->fa2_size = txdr_unsigned(vap->va_size); 18429336Sdfr fp->fa2_blocksize = txdr_unsigned(vap->va_blocksize); 18439336Sdfr if (vap->va_type == VFIFO) 18449336Sdfr fp->fa2_rdev = 0xffffffff; 18459336Sdfr else 18469336Sdfr fp->fa2_rdev = txdr_unsigned(vap->va_rdev); 18479336Sdfr fp->fa2_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); 18489336Sdfr fp->fa2_fsid = txdr_unsigned(vap->va_fsid); 18499336Sdfr fp->fa2_fileid = txdr_unsigned(vap->va_fileid); 18509336Sdfr txdr_nfsv2time(&vap->va_atime, &fp->fa2_atime); 18519336Sdfr txdr_nfsv2time(&vap->va_mtime, &fp->fa2_mtime); 18529336Sdfr txdr_nfsv2time(&vap->va_ctime, &fp->fa2_ctime); 18539336Sdfr } 18549336Sdfr} 18559336Sdfr 18569336Sdfr/* 18571541Srgrimes * nfsrv_fhtovp() - convert a fh to a vnode ptr (optionally locked) 18581541Srgrimes * - look up fsid in mount list (if not found ret error) 18591541Srgrimes * - get vp and export rights by calling VFS_FHTOVP() 18601541Srgrimes * - if cred->cr_uid == 0 or MNT_EXPORTANON set it to credanon 18611541Srgrimes * - if not lockflag unlock it with VOP_UNLOCK() 18621541Srgrimes */ 18631549Srgrimesint 186427446Sdfrnfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag, pubflag) 18651541Srgrimes fhandle_t *fhp; 18661541Srgrimes int lockflag; 18671541Srgrimes struct vnode **vpp; 18681541Srgrimes struct ucred *cred; 18691541Srgrimes struct nfssvc_sock *slp; 187028270Swollman struct sockaddr *nam; 18711541Srgrimes int *rdonlyp; 18729336Sdfr int kerbflag; 187327446Sdfr int pubflag; 18741541Srgrimes{ 187522521Sdyson struct proc *p = curproc; /* XXX */ 18761541Srgrimes register struct mount *mp; 18771541Srgrimes register int i; 18781541Srgrimes struct ucred *credanon; 18791541Srgrimes int error, exflags; 188036534Speter#ifdef MNT_EXNORESPORT /* XXX needs mountd and /etc/exports help yet */ 188136534Speter struct sockaddr_int *saddr; 188236534Speter#endif 18831541Srgrimes 18841541Srgrimes *vpp = (struct vnode *)0; 188527446Sdfr 188627446Sdfr if (nfs_ispublicfh(fhp)) { 188727446Sdfr if (!pubflag || !nfs_pub.np_valid) 188827446Sdfr return (ESTALE); 188927446Sdfr fhp = &nfs_pub.np_handle; 189027446Sdfr } 189127446Sdfr 189222521Sdyson mp = vfs_getvfs(&fhp->fh_fsid); 18933305Sphk if (!mp) 18941541Srgrimes return (ESTALE); 18953305Sphk error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon); 18963305Sphk if (error) 18971541Srgrimes return (error); 189836534Speter#ifdef MNT_EXNORESPORT 189936534Speter if (!(exflags & (MNT_EXNORESPORT|MNT_EXPUBLIC))) { 190036534Speter saddr = (struct sockaddr_in *)nam; 190136534Speter if (saddr->sin_family == AF_INET && 190236534Speter ntohs(saddr->sin_port) >= IPPORT_RESERVED) { 190336534Speter vput(*vpp); 190436534Speter return (NFSERR_AUTHERR | AUTH_TOOWEAK); 190536534Speter } 190636534Speter } 190736534Speter#endif 19081541Srgrimes /* 19091541Srgrimes * Check/setup credentials. 19101541Srgrimes */ 19111541Srgrimes if (exflags & MNT_EXKERB) { 19129336Sdfr if (!kerbflag) { 19131541Srgrimes vput(*vpp); 19149336Sdfr return (NFSERR_AUTHERR | AUTH_TOOWEAK); 19151541Srgrimes } 19169336Sdfr } else if (kerbflag) { 19179336Sdfr vput(*vpp); 19189336Sdfr return (NFSERR_AUTHERR | AUTH_TOOWEAK); 19191541Srgrimes } else if (cred->cr_uid == 0 || (exflags & MNT_EXPORTANON)) { 19201541Srgrimes cred->cr_uid = credanon->cr_uid; 19211541Srgrimes for (i = 0; i < credanon->cr_ngroups && i < NGROUPS; i++) 19221541Srgrimes cred->cr_groups[i] = credanon->cr_groups[i]; 19233664Sphk cred->cr_ngroups = i; 19241541Srgrimes } 19251541Srgrimes if (exflags & MNT_EXRDONLY) 19261541Srgrimes *rdonlyp = 1; 19271541Srgrimes else 19281541Srgrimes *rdonlyp = 0; 19297969Sdyson 193017761Sdyson nfsrv_object_create(*vpp); 19317969Sdyson 19321541Srgrimes if (!lockflag) 193322521Sdyson VOP_UNLOCK(*vpp, 0, p); 19341541Srgrimes return (0); 19351541Srgrimes} 19361541Srgrimes 193727446Sdfr 193827446Sdfr/* 193927446Sdfr * WebNFS: check if a filehandle is a public filehandle. For v3, this 194027446Sdfr * means a length of 0, for v2 it means all zeroes. nfsm_srvmtofh has 194127446Sdfr * transformed this to all zeroes in both cases, so check for it. 194227446Sdfr */ 194327446Sdfrint 194427446Sdfrnfs_ispublicfh(fhp) 194527446Sdfr fhandle_t *fhp; 194627446Sdfr{ 194727446Sdfr char *cp = (char *)fhp; 194827446Sdfr int i; 194927446Sdfr 195027446Sdfr for (i = 0; i < NFSX_V3FH; i++) 195127446Sdfr if (*cp++ != 0) 195227446Sdfr return (FALSE); 195327446Sdfr return (TRUE); 195427446Sdfr} 195527446Sdfr 195613416Sphk#endif /* NFS_NOSERVER */ 19571541Srgrimes/* 19581541Srgrimes * This function compares two net addresses by family and returns TRUE 19591541Srgrimes * if they are the same host. 19601541Srgrimes * If there is any doubt, return FALSE. 19611541Srgrimes * The AF_INET family is handled as a special case so that address mbufs 19621541Srgrimes * don't need to be saved to store "struct in_addr", which is only 4 bytes. 19631541Srgrimes */ 19641549Srgrimesint 19651541Srgrimesnetaddr_match(family, haddr, nam) 19661541Srgrimes int family; 19671541Srgrimes union nethostaddr *haddr; 196828270Swollman struct sockaddr *nam; 19691541Srgrimes{ 19701541Srgrimes register struct sockaddr_in *inetaddr; 19711541Srgrimes 19721541Srgrimes switch (family) { 19731541Srgrimes case AF_INET: 197428270Swollman inetaddr = (struct sockaddr_in *)nam; 19751541Srgrimes if (inetaddr->sin_family == AF_INET && 19761541Srgrimes inetaddr->sin_addr.s_addr == haddr->had_inetaddr) 19771541Srgrimes return (1); 19781541Srgrimes break; 19791541Srgrimes#ifdef ISO 19801541Srgrimes case AF_ISO: 19811541Srgrimes { 19821541Srgrimes register struct sockaddr_iso *isoaddr1, *isoaddr2; 19831541Srgrimes 198428270Swollman isoaddr1 = (struct sockaddr_iso *)nam; 198528270Swollman isoaddr2 = (struct sockaddr_iso *)haddr->had_nam; 19861541Srgrimes if (isoaddr1->siso_family == AF_ISO && 19871541Srgrimes isoaddr1->siso_nlen > 0 && 19881541Srgrimes isoaddr1->siso_nlen == isoaddr2->siso_nlen && 19891541Srgrimes SAME_ISOADDR(isoaddr1, isoaddr2)) 19901541Srgrimes return (1); 19911541Srgrimes break; 19921541Srgrimes } 19931541Srgrimes#endif /* ISO */ 19941541Srgrimes default: 19951541Srgrimes break; 19961541Srgrimes }; 19971541Srgrimes return (0); 19981541Srgrimes} 19995455Sdg 20009336Sdfrstatic nfsuint64 nfs_nullcookie = { 0, 0 }; 20019336Sdfr/* 20029336Sdfr * This function finds the directory cookie that corresponds to the 20039336Sdfr * logical byte offset given. 20049336Sdfr */ 20059336Sdfrnfsuint64 * 20069336Sdfrnfs_getcookie(np, off, add) 20079336Sdfr register struct nfsnode *np; 20089336Sdfr off_t off; 20099336Sdfr int add; 20109336Sdfr{ 20119336Sdfr register struct nfsdmap *dp, *dp2; 20129336Sdfr register int pos; 20139336Sdfr 20149336Sdfr pos = off / NFS_DIRBLKSIZ; 20159336Sdfr if (pos == 0) { 20169336Sdfr#ifdef DIAGNOSTIC 20179336Sdfr if (add) 20189336Sdfr panic("nfs getcookie add at 0"); 20199336Sdfr#endif 20209336Sdfr return (&nfs_nullcookie); 20219336Sdfr } 20229336Sdfr pos--; 20239336Sdfr dp = np->n_cookies.lh_first; 20249336Sdfr if (!dp) { 20259336Sdfr if (add) { 20269336Sdfr MALLOC(dp, struct nfsdmap *, sizeof (struct nfsdmap), 20279336Sdfr M_NFSDIROFF, M_WAITOK); 20289336Sdfr dp->ndm_eocookie = 0; 20299336Sdfr LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list); 20309336Sdfr } else 20319336Sdfr return ((nfsuint64 *)0); 20329336Sdfr } 20339336Sdfr while (pos >= NFSNUMCOOKIES) { 20349336Sdfr pos -= NFSNUMCOOKIES; 20359336Sdfr if (dp->ndm_list.le_next) { 20369336Sdfr if (!add && dp->ndm_eocookie < NFSNUMCOOKIES && 20379336Sdfr pos >= dp->ndm_eocookie) 20389336Sdfr return ((nfsuint64 *)0); 20399336Sdfr dp = dp->ndm_list.le_next; 20409336Sdfr } else if (add) { 20419336Sdfr MALLOC(dp2, struct nfsdmap *, sizeof (struct nfsdmap), 20429336Sdfr M_NFSDIROFF, M_WAITOK); 20439336Sdfr dp2->ndm_eocookie = 0; 20449336Sdfr LIST_INSERT_AFTER(dp, dp2, ndm_list); 20459336Sdfr dp = dp2; 20469336Sdfr } else 20479336Sdfr return ((nfsuint64 *)0); 20489336Sdfr } 20499336Sdfr if (pos >= dp->ndm_eocookie) { 20509336Sdfr if (add) 20519336Sdfr dp->ndm_eocookie = pos + 1; 20529336Sdfr else 20539336Sdfr return ((nfsuint64 *)0); 20549336Sdfr } 20559336Sdfr return (&dp->ndm_cookies[pos]); 20569336Sdfr} 20579336Sdfr 20589336Sdfr/* 20599336Sdfr * Invalidate cached directory information, except for the actual directory 20609336Sdfr * blocks (which are invalidated separately). 20619336Sdfr * Done mainly to avoid the use of stale offset cookies. 20629336Sdfr */ 20639336Sdfrvoid 20649336Sdfrnfs_invaldir(vp) 20659336Sdfr register struct vnode *vp; 20669336Sdfr{ 20679336Sdfr register struct nfsnode *np = VTONFS(vp); 20689336Sdfr 20699336Sdfr#ifdef DIAGNOSTIC 20709336Sdfr if (vp->v_type != VDIR) 20719336Sdfr panic("nfs: invaldir not dir"); 20729336Sdfr#endif 20739336Sdfr np->n_direofoffset = 0; 20749336Sdfr np->n_cookieverf.nfsuquad[0] = 0; 20759336Sdfr np->n_cookieverf.nfsuquad[1] = 0; 20769336Sdfr if (np->n_cookies.lh_first) 20779336Sdfr np->n_cookies.lh_first->ndm_eocookie = 0; 20789336Sdfr} 20799336Sdfr 20809336Sdfr/* 20819336Sdfr * The write verifier has changed (probably due to a server reboot), so all 20829336Sdfr * B_NEEDCOMMIT blocks will have to be written again. Since they are on the 20839336Sdfr * dirty block list as B_DELWRI, all this takes is clearing the B_NEEDCOMMIT 20849336Sdfr * flag. Once done the new write verifier can be set for the mount point. 20859336Sdfr */ 20869336Sdfrvoid 20879336Sdfrnfs_clearcommit(mp) 20889336Sdfr struct mount *mp; 20899336Sdfr{ 20909336Sdfr register struct vnode *vp, *nvp; 20919336Sdfr register struct buf *bp, *nbp; 20929336Sdfr int s; 20939336Sdfr 20949336Sdfr s = splbio(); 20959336Sdfrloop: 20969336Sdfr for (vp = mp->mnt_vnodelist.lh_first; vp; vp = nvp) { 20979336Sdfr if (vp->v_mount != mp) /* Paranoia */ 20989336Sdfr goto loop; 20999336Sdfr nvp = vp->v_mntvnodes.le_next; 21009336Sdfr for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { 21019336Sdfr nbp = bp->b_vnbufs.le_next; 21029336Sdfr if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT)) 21039336Sdfr == (B_DELWRI | B_NEEDCOMMIT)) 21049336Sdfr bp->b_flags &= ~B_NEEDCOMMIT; 21059336Sdfr } 21069336Sdfr } 21079336Sdfr splx(s); 21089336Sdfr} 21099336Sdfr 211013416Sphk#ifndef NFS_NOSERVER 21119336Sdfr/* 21129336Sdfr * Map errnos to NFS error numbers. For Version 3 also filter out error 21139336Sdfr * numbers not specified for the associated procedure. 21149336Sdfr */ 21155455Sdgint 21169336Sdfrnfsrv_errmap(nd, err) 21179336Sdfr struct nfsrv_descript *nd; 21189336Sdfr register int err; 21199336Sdfr{ 21209336Sdfr register short *defaulterrp, *errp; 21219336Sdfr 21229336Sdfr if (nd->nd_flag & ND_NFSV3) { 21239336Sdfr if (nd->nd_procnum <= NFSPROC_COMMIT) { 21249336Sdfr errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum]; 21259336Sdfr while (*++errp) { 21269336Sdfr if (*errp == err) 21279336Sdfr return (err); 21289336Sdfr else if (*errp > err) 21299336Sdfr break; 21309336Sdfr } 21319336Sdfr return ((int)*defaulterrp); 21329336Sdfr } else 21339336Sdfr return (err & 0xffff); 21349336Sdfr } 21359336Sdfr if (err <= ELAST) 21369336Sdfr return ((int)nfsrv_v2errmap[err - 1]); 21379336Sdfr return (NFSERR_IO); 21389336Sdfr} 21399336Sdfr 21409336Sdfrint 214131886Sbdenfsrv_object_create(vp) 214231886Sbde struct vnode *vp; 214331886Sbde{ 21445455Sdg 214531886Sbde if (vp == NULL || vp->v_type != VREG) 214631886Sbde return (1); 214731886Sbde return (vfs_object_create(vp, curproc, 214831886Sbde curproc ? curproc->p_ucred : NULL, 1)); 21495455Sdg} 215036503Speter 215136503Speter/* 215236503Speter * Sort the group list in increasing numerical order. 215336503Speter * (Insertion sort by Chris Torek, who was grossed out by the bubble sort 215436503Speter * that used to be here.) 215536503Speter */ 215636503Spetervoid 215736503Speternfsrvw_sort(list, num) 215836503Speter register gid_t *list; 215936503Speter register int num; 216036503Speter{ 216136503Speter register int i, j; 216236503Speter gid_t v; 216336503Speter 216436503Speter /* Insertion sort. */ 216536503Speter for (i = 1; i < num; i++) { 216636503Speter v = list[i]; 216736503Speter /* find correct slot for value v, moving others up */ 216836503Speter for (j = i; --j >= 0 && v < list[j];) 216936503Speter list[j + 1] = list[j]; 217036503Speter list[j + 1] = v; 217136503Speter } 217236503Speter} 217336503Speter 217436503Speter/* 217536503Speter * copy credentials making sure that the result can be compared with bcmp(). 217636503Speter */ 217736503Spetervoid 217836503Speternfsrv_setcred(incred, outcred) 217936503Speter register struct ucred *incred, *outcred; 218036503Speter{ 218136503Speter register int i; 218236503Speter 218336503Speter bzero((caddr_t)outcred, sizeof (struct ucred)); 218436503Speter outcred->cr_ref = 1; 218536503Speter outcred->cr_uid = incred->cr_uid; 218636503Speter outcred->cr_ngroups = incred->cr_ngroups; 218736503Speter for (i = 0; i < incred->cr_ngroups; i++) 218836503Speter outcred->cr_groups[i] = incred->cr_groups[i]; 218936503Speter nfsrvw_sort(outcred->cr_groups, outcred->cr_ngroups); 219036503Speter} 219113416Sphk#endif /* NFS_NOSERVER */ 2192