nfs_nfsdsocket.c revision 211951
1/*- 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Rick Macklem at The University of Guelph. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 4. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/fs/nfsserver/nfs_nfsdsocket.c 211951 2010-08-28 21:41:18Z rmacklem $"); 36 37/* 38 * Socket operations for use by the nfs server. 39 */ 40 41#ifndef APPLEKEXT 42#include <fs/nfs/nfsport.h> 43 44extern struct nfsstats newnfsstats; 45extern struct nfsrvfh nfs_pubfh, nfs_rootfh; 46extern int nfs_pubfhset, nfs_rootfhset; 47extern struct nfsv4lock nfsv4rootfs_lock; 48extern struct nfsrv_stablefirst nfsrv_stablefirst; 49extern struct nfsclienthashhead nfsclienthash[NFSCLIENTHASHSIZE]; 50extern int nfsrc_floodlevel, nfsrc_tcpsavedreplies; 51NFSV4ROOTLOCKMUTEX; 52NFSSTATESPINLOCK; 53vnode_t nfsv4root_vp = NULL; 54int nfsv4root_set = 0; 55 56int (*nfsrv3_procs0[NFS_V3NPROCS])(struct nfsrv_descript *, 57 int, vnode_t , NFSPROC_T *, struct nfsexstuff *) = { 58 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 59 nfsrvd_getattr, 60 nfsrvd_setattr, 61 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 62 nfsrvd_access, 63 nfsrvd_readlink, 64 nfsrvd_read, 65 nfsrvd_write, 66 nfsrvd_create, 67 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 68 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 69 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 70 nfsrvd_remove, 71 nfsrvd_remove, 72 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 73 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 74 nfsrvd_readdir, 75 nfsrvd_readdirplus, 76 nfsrvd_statfs, 77 nfsrvd_fsinfo, 78 nfsrvd_pathconf, 79 nfsrvd_commit, 80}; 81 82int (*nfsrv3_procs1[NFS_V3NPROCS])(struct nfsrv_descript *, 83 int, vnode_t , vnode_t *, fhandle_t *, 84 NFSPROC_T *, struct nfsexstuff *) = { 85 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 86 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 87 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 88 nfsrvd_lookup, 89 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 90 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 91 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 92 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 93 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 94 nfsrvd_mkdir, 95 nfsrvd_symlink, 96 nfsrvd_mknod, 97 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 98 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 99 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 100 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 101 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 102 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 103 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 104 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 105 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 106 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 107}; 108 109int (*nfsrv3_procs2[NFS_V3NPROCS])(struct nfsrv_descript *, 110 int, vnode_t , vnode_t , NFSPROC_T *, 111 struct nfsexstuff *, struct nfsexstuff *) = { 112 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 113 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 114 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 115 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 116 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 117 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 118 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 119 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 120 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 121 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 122 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 123 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 124 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 125 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 126 nfsrvd_rename, 127 nfsrvd_link, 128 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 129 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 130 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 131 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 132 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 133 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 134}; 135 136int (*nfsrv4_ops0[NFSV4OP_NOPS])(struct nfsrv_descript *, 137 int, vnode_t , NFSPROC_T *, struct nfsexstuff *) = { 138 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 139 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 140 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 141 nfsrvd_access, 142 nfsrvd_close, 143 nfsrvd_commit, 144 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 145 nfsrvd_delegpurge, 146 nfsrvd_delegreturn, 147 nfsrvd_getattr, 148 nfsrvd_getfh, 149 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 150 nfsrvd_lock, 151 nfsrvd_lockt, 152 nfsrvd_locku, 153 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 154 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 155 nfsrvd_verify, 156 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 157 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 158 nfsrvd_openconfirm, 159 nfsrvd_opendowngrade, 160 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 161 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 162 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 163 nfsrvd_read, 164 nfsrvd_readdirplus, 165 nfsrvd_readlink, 166 nfsrvd_remove, 167 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 168 nfsrvd_renew, 169 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 170 (int (*)(struct nfsrv_descript *, int, vnode_t , NFSPROC_T *, struct nfsexstuff *))0, 171 nfsrvd_secinfo, 172 nfsrvd_setattr, 173 nfsrvd_setclientid, 174 nfsrvd_setclientidcfrm, 175 nfsrvd_verify, 176 nfsrvd_write, 177 nfsrvd_releaselckown, 178}; 179 180int (*nfsrv4_ops1[NFSV4OP_NOPS])(struct nfsrv_descript *, 181 int, vnode_t , vnode_t *, fhandle_t *, 182 NFSPROC_T *, struct nfsexstuff *) = { 183 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 184 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 185 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 186 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 187 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 188 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 189 nfsrvd_mknod, 190 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 191 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 192 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 193 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 194 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 195 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 196 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 197 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 198 nfsrvd_lookup, 199 nfsrvd_lookup, 200 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 201 nfsrvd_open, 202 nfsrvd_openattr, 203 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 204 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 205 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 206 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 207 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 208 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 209 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 210 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 211 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 212 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 213 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 214 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 215 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 216 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 217 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 218 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 219 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 220 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 221 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 222 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t *, fhandle_t *, NFSPROC_T *, struct nfsexstuff *))0, 223}; 224 225int (*nfsrv4_ops2[NFSV4OP_NOPS])(struct nfsrv_descript *, 226 int, vnode_t , vnode_t , NFSPROC_T *, 227 struct nfsexstuff *, struct nfsexstuff *) = { 228 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 229 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 230 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 231 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 232 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 233 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 234 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 235 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 236 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 237 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 238 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 239 nfsrvd_link, 240 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 241 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 242 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 243 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 244 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 245 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 246 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 247 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 248 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 249 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 250 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 251 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 252 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 253 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 254 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 255 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 256 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 257 nfsrvd_rename, 258 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 259 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 260 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 261 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 262 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 263 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 264 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 265 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 266 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 267 (int (*)(struct nfsrv_descript *, int, vnode_t , vnode_t , NFSPROC_T *, struct nfsexstuff *, struct nfsexstuff *))0, 268}; 269#endif /* !APPLEKEXT */ 270 271/* 272 * Static array that defines which nfs rpc's are nonidempotent 273 */ 274static int nfsrv_nonidempotent[NFS_V3NPROCS] = { 275 FALSE, 276 FALSE, 277 TRUE, 278 FALSE, 279 FALSE, 280 FALSE, 281 FALSE, 282 TRUE, 283 TRUE, 284 TRUE, 285 TRUE, 286 TRUE, 287 TRUE, 288 TRUE, 289 TRUE, 290 TRUE, 291 FALSE, 292 FALSE, 293 FALSE, 294 FALSE, 295 FALSE, 296 FALSE, 297}; 298 299/* 300 * This static array indicates whether or not the RPC modifies the 301 * file system. 302 */ 303static int nfs_writerpc[NFS_NPROCS] = { 0, 0, 1, 0, 0, 0, 0, 304 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 305 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 }; 306 307/* local functions */ 308static void nfsrvd_compound(struct nfsrv_descript *nd, int isdgram, 309 NFSPROC_T *p); 310 311 312/* 313 * This static array indicates which server procedures require the extra 314 * arguments to return the current file handle for V2, 3. 315 */ 316static int nfs_retfh[NFS_V3NPROCS] = { 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 317 1, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0 }; 318 319extern struct nfsv4_opflag nfsv4_opflag[NFSV4OP_NOPS]; 320 321static int nfsv3to4op[NFS_V3NPROCS] = { 322 NFSPROC_NULL, 323 NFSV4OP_GETATTR, 324 NFSV4OP_SETATTR, 325 NFSV4OP_LOOKUP, 326 NFSV4OP_ACCESS, 327 NFSV4OP_READLINK, 328 NFSV4OP_READ, 329 NFSV4OP_WRITE, 330 NFSV4OP_V3CREATE, 331 NFSV4OP_MKDIR, 332 NFSV4OP_SYMLINK, 333 NFSV4OP_MKNOD, 334 NFSV4OP_REMOVE, 335 NFSV4OP_RMDIR, 336 NFSV4OP_RENAME, 337 NFSV4OP_LINK, 338 NFSV4OP_READDIR, 339 NFSV4OP_READDIRPLUS, 340 NFSV4OP_FSSTAT, 341 NFSV4OP_FSINFO, 342 NFSV4OP_PATHCONF, 343 NFSV4OP_COMMIT, 344}; 345 346/* 347 * Do an RPC. Basically, get the file handles translated to vnode pointers 348 * and then call the appropriate server routine. The server routines are 349 * split into groups, based on whether they use a file handle or file 350 * handle plus name or ... 351 * The NFS V4 Compound RPC is performed separately by nfsrvd_compound(). 352 */ 353APPLESTATIC void 354nfsrvd_dorpc(struct nfsrv_descript *nd, int isdgram, 355 NFSPROC_T *p) 356{ 357 int error = 0; 358 vnode_t vp; 359 mount_t mp = NULL; 360 struct nfsrvfh fh; 361 struct nfsexstuff nes; 362 363 /* 364 * Get a locked vnode for the first file handle 365 */ 366 if (!(nd->nd_flag & ND_NFSV4)) { 367 KASSERT(nd->nd_repstat == 0, ("nfsrvd_dorpc")); 368 /* 369 * For NFSv3, if the malloc/mget allocation is near limits, 370 * return NFSERR_DELAY. 371 */ 372 if ((nd->nd_flag & ND_NFSV3) && nfsrv_mallocmget_limit()) { 373 nd->nd_repstat = NFSERR_DELAY; 374 vp = NULL; 375 } else { 376 error = nfsrv_mtofh(nd, &fh); 377 if (error) { 378 if (error != EBADRPC) 379 printf("nfs dorpc err1=%d\n", error); 380 nd->nd_repstat = NFSERR_GARBAGE; 381 return; 382 } 383 nes.nes_vfslocked = 0; 384 if (nd->nd_flag & ND_PUBLOOKUP) 385 nfsd_fhtovp(nd, &nfs_pubfh, &vp, &nes, 386 &mp, nfs_writerpc[nd->nd_procnum], p); 387 else 388 nfsd_fhtovp(nd, &fh, &vp, &nes, 389 &mp, nfs_writerpc[nd->nd_procnum], p); 390 if (nd->nd_repstat == NFSERR_PROGNOTV4) 391 return; 392 } 393 } 394 395 /* 396 * For V2 and 3, set the ND_SAVEREPLY flag for the recent request 397 * cache, as required. 398 * For V4, nfsrvd_compound() does this. 399 */ 400 if (!(nd->nd_flag & ND_NFSV4) && nfsrv_nonidempotent[nd->nd_procnum]) 401 nd->nd_flag |= ND_SAVEREPLY; 402 403 nfsrvd_rephead(nd); 404 /* 405 * If nd_repstat is non-zero, just fill in the reply status 406 * to complete the RPC reply for V2. Otherwise, you must do 407 * the RPC. 408 */ 409 if (nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 410 *nd->nd_errp = nfsd_errmap(nd); 411 NFSINCRGLOBAL(newnfsstats.srvrpccnt[nfsv3to4op[nd->nd_procnum]]); 412 if (mp != NULL) { 413 if (nfs_writerpc[nd->nd_procnum]) 414 NFS_ENDWRITE(mp); 415 if (nes.nes_vfslocked) 416 nfsvno_unlockvfs(mp); 417 } 418 return; 419 } 420 421 /* 422 * Now the procedure can be performed. For V4, nfsrvd_compound() 423 * works through the sub-rpcs, otherwise just call the procedure. 424 * The procedures are in three groups with different arguments. 425 * The group is indicated by the value in nfs_retfh[]. 426 */ 427 if (nd->nd_flag & ND_NFSV4) { 428 nfsrvd_compound(nd, isdgram, p); 429 } else { 430 if (nfs_retfh[nd->nd_procnum] == 1) { 431 if (vp) 432 NFSVOPUNLOCK(vp, 0, p); 433 error = (*(nfsrv3_procs1[nd->nd_procnum]))(nd, isdgram, 434 vp, NULL, (fhandle_t *)fh.nfsrvfh_data, p, &nes); 435 } else if (nfs_retfh[nd->nd_procnum] == 2) { 436 error = (*(nfsrv3_procs2[nd->nd_procnum]))(nd, isdgram, 437 vp, NULL, p, &nes, NULL); 438 } else { 439 error = (*(nfsrv3_procs0[nd->nd_procnum]))(nd, isdgram, 440 vp, p, &nes); 441 } 442 if (mp) { 443 if (nfs_writerpc[nd->nd_procnum]) 444 NFS_ENDWRITE(mp); 445 if (nes.nes_vfslocked) 446 nfsvno_unlockvfs(mp); 447 } 448 NFSINCRGLOBAL(newnfsstats.srvrpccnt[nfsv3to4op[nd->nd_procnum]]); 449 } 450 if (error) { 451 if (error != EBADRPC) 452 printf("nfs dorpc err2=%d\n", error); 453 nd->nd_repstat = NFSERR_GARBAGE; 454 } 455 *nd->nd_errp = nfsd_errmap(nd); 456 457 /* 458 * Don't cache certain reply status values. 459 */ 460 if (nd->nd_repstat && (nd->nd_flag & ND_SAVEREPLY) && 461 (nd->nd_repstat == NFSERR_GARBAGE || 462 nd->nd_repstat == NFSERR_BADXDR || 463 nd->nd_repstat == NFSERR_MOVED || 464 nd->nd_repstat == NFSERR_DELAY || 465 nd->nd_repstat == NFSERR_BADSEQID || 466 nd->nd_repstat == NFSERR_RESOURCE || 467 nd->nd_repstat == NFSERR_SERVERFAULT || 468 nd->nd_repstat == NFSERR_STALECLIENTID || 469 nd->nd_repstat == NFSERR_STALESTATEID || 470 nd->nd_repstat == NFSERR_OLDSTATEID || 471 nd->nd_repstat == NFSERR_BADSTATEID || 472 nd->nd_repstat == NFSERR_GRACE || 473 nd->nd_repstat == NFSERR_NOGRACE)) 474 nd->nd_flag &= ~ND_SAVEREPLY; 475} 476 477/* 478 * Breaks down a compound RPC request and calls the server routines for 479 * the subprocedures. 480 * Some suboperations are performed directly here to simplify file handle<--> 481 * vnode pointer handling. 482 */ 483static void 484nfsrvd_compound(struct nfsrv_descript *nd, int isdgram, 485 NFSPROC_T *p) 486{ 487 int i, op; 488 u_int32_t *tl; 489 struct nfsclient *clp, *nclp; 490 int numops, taglen = -1, error = 0, igotlock; 491 u_int32_t minorvers, retops = 0, *retopsp = NULL, *repp; 492 u_char tag[NFSV4_SMALLSTR + 1], *tagstr; 493 vnode_t vp, nvp, savevp; 494 struct nfsrvfh fh; 495 mount_t mp, savemp; 496 struct ucred *credanon; 497 struct nfsexstuff nes, vpnes, savevpnes; 498 static u_int64_t compref = 0; 499 500 NFSVNO_EXINIT(&vpnes); 501 NFSVNO_EXINIT(&savevpnes); 502 /* 503 * Put the seq# of the current compound RPC in nfsrv_descript. 504 * (This is used by nfsrv_checkgetattr(), to see if the write 505 * delegation was created by the same compound RPC as the one 506 * with that Getattr in it.) 507 * Don't worry about the 64bit number wrapping around. It ain't 508 * gonna happen before this server gets shut down/rebooted. 509 */ 510 nd->nd_compref = compref++; 511 512 /* 513 * Check for and optionally get a lock on the root. This lock means that 514 * no nfsd will be fiddling with the V4 file system and state stuff. It 515 * is required when the V4 root is being changed, the stable storage 516 * restart file is being updated, or callbacks are being done. 517 * When any of the nfsd are processing an NFSv4 compound RPC, they must 518 * either hold a reference count (nfs_usecnt) or the lock. When 519 * nfsrv_unlock() is called to release the lock, it can optionally 520 * also get a reference count, which saves the need for a call to 521 * nfsrv_getref() after nfsrv_unlock(). 522 */ 523 /* 524 * First, check to see if we need to wait for an update lock. 525 */ 526 igotlock = 0; 527 NFSLOCKV4ROOTMUTEX(); 528 if (nfsrv_stablefirst.nsf_flags & NFSNSF_NEEDLOCK) 529 igotlock = nfsv4_lock(&nfsv4rootfs_lock, 1, NULL, 530 NFSV4ROOTLOCKMUTEXPTR); 531 else 532 igotlock = nfsv4_lock(&nfsv4rootfs_lock, 0, NULL, 533 NFSV4ROOTLOCKMUTEXPTR); 534 NFSUNLOCKV4ROOTMUTEX(); 535 if (igotlock) { 536 /* 537 * If I got the lock, I can update the stable storage file. 538 * Done when the grace period is over or a client has long 539 * since expired. 540 */ 541 nfsrv_stablefirst.nsf_flags &= ~NFSNSF_NEEDLOCK; 542 if ((nfsrv_stablefirst.nsf_flags & 543 (NFSNSF_GRACEOVER | NFSNSF_UPDATEDONE)) == NFSNSF_GRACEOVER) 544 nfsrv_updatestable(p); 545 546 /* 547 * If at least one client has long since expired, search 548 * the client list for them, write a REVOKE record on the 549 * stable storage file and then remove them from the client 550 * list. 551 */ 552 if (nfsrv_stablefirst.nsf_flags & NFSNSF_EXPIREDCLIENT) { 553 nfsrv_stablefirst.nsf_flags &= ~NFSNSF_EXPIREDCLIENT; 554 for (i = 0; i < NFSCLIENTHASHSIZE; i++) { 555 LIST_FOREACH_SAFE(clp, &nfsclienthash[i], lc_hash, 556 nclp) { 557 if (clp->lc_flags & LCL_EXPIREIT) { 558 if (!LIST_EMPTY(&clp->lc_open) || 559 !LIST_EMPTY(&clp->lc_deleg)) 560 nfsrv_writestable(clp->lc_id, 561 clp->lc_idlen, NFSNST_REVOKE, p); 562 nfsrv_cleanclient(clp, p); 563 nfsrv_freedeleglist(&clp->lc_deleg); 564 nfsrv_freedeleglist(&clp->lc_olddeleg); 565 LIST_REMOVE(clp, lc_hash); 566 nfsrv_zapclient(clp, p); 567 } 568 } 569 } 570 } 571 NFSLOCKV4ROOTMUTEX(); 572 nfsv4_unlock(&nfsv4rootfs_lock, 1); 573 NFSUNLOCKV4ROOTMUTEX(); 574 } else { 575 /* 576 * If we didn't get the lock, we need to get a refcnt, 577 * which also checks for and waits for the lock. 578 */ 579 NFSLOCKV4ROOTMUTEX(); 580 nfsv4_getref(&nfsv4rootfs_lock, NULL, 581 NFSV4ROOTLOCKMUTEXPTR); 582 NFSUNLOCKV4ROOTMUTEX(); 583 } 584 585 /* 586 * If flagged, search for open owners that haven't had any opens 587 * for a long time. 588 */ 589 if (nfsrv_stablefirst.nsf_flags & NFSNSF_NOOPENS) { 590 nfsrv_throwawayopens(p); 591 } 592 593 savevp = vp = NULL; 594 savevpnes.nes_vfslocked = vpnes.nes_vfslocked = 0; 595 savemp = mp = NULL; 596 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 597 taglen = fxdr_unsigned(int, *tl); 598 if (taglen < 0) { 599 error = EBADRPC; 600 goto nfsmout; 601 } 602 if (taglen <= NFSV4_SMALLSTR) 603 tagstr = tag; 604 else 605 tagstr = malloc(taglen + 1, M_TEMP, M_WAITOK); 606 error = nfsrv_mtostr(nd, tagstr, taglen); 607 if (error) { 608 if (taglen > NFSV4_SMALLSTR) 609 free(tagstr, M_TEMP); 610 taglen = -1; 611 goto nfsmout; 612 } 613 (void) nfsm_strtom(nd, tag, taglen); 614 if (taglen > NFSV4_SMALLSTR) { 615 free(tagstr, M_TEMP); 616 } 617 NFSM_BUILD(retopsp, u_int32_t *, NFSX_UNSIGNED); 618 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 619 minorvers = fxdr_unsigned(u_int32_t, *tl++); 620 if (minorvers != NFSV4_MINORVERSION) 621 nd->nd_repstat = NFSERR_MINORVERMISMATCH; 622 if (nd->nd_repstat) 623 numops = 0; 624 else 625 numops = fxdr_unsigned(int, *tl); 626 /* 627 * Loop around doing the sub ops. 628 * vp - is an unlocked vnode pointer for the CFH 629 * savevp - is an unlocked vnode pointer for the SAVEDFH 630 * (at some future date, it might turn out to be more appropriate 631 * to keep the file handles instead of vnode pointers?) 632 * savevpnes and vpnes - are the export flags for the above. 633 */ 634 for (i = 0; i < numops; i++) { 635 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 636 NFSM_BUILD(repp, u_int32_t *, 2 * NFSX_UNSIGNED); 637 *repp = *tl; 638 op = fxdr_unsigned(int, *tl); 639 if (op < NFSV4OP_ACCESS || op >= NFSV4OP_NOPS) { 640 nd->nd_repstat = NFSERR_OPILLEGAL; 641 *repp++ = txdr_unsigned(NFSV4OP_OPILLEGAL); 642 *repp = nfsd_errmap(nd); 643 retops++; 644 break; 645 } else { 646 repp++; 647 } 648 649 /* 650 * Check for a referral on the current FH and, if so, return 651 * NFSERR_MOVED for all ops that allow it, except Getattr. 652 */ 653 if (vp != NULL && op != NFSV4OP_GETATTR && 654 nfsv4root_getreferral(vp, NULL, 0) != NULL && 655 nfsrv_errmoved(op)) { 656 nd->nd_repstat = NFSERR_MOVED; 657 *repp = nfsd_errmap(nd); 658 retops++; 659 break; 660 } 661 662 nd->nd_procnum = op; 663 /* 664 * If over flood level, reply NFSERR_RESOURCE, if at the first 665 * Op. (Since a client recovery from NFSERR_RESOURCE can get 666 * really nasty for certain Op sequences, I'll play it safe 667 * and only return the error at the beginning.) The cache 668 * will still function over flood level, but uses lots of 669 * mbufs.) 670 * If nfsrv_mallocmget_limit() returns True, the system is near 671 * to its limit for memory that malloc()/mget() can allocate. 672 */ 673 if (i == 0 && nd->nd_rp->rc_refcnt == 0 && 674 (nfsrv_mallocmget_limit() || 675 nfsrc_tcpsavedreplies > nfsrc_floodlevel)) { 676 if (nfsrc_tcpsavedreplies > nfsrc_floodlevel) { 677 printf("nfsd server cache flooded, try to"); 678 printf(" increase nfsrc_floodlevel\n"); 679 } 680 nd->nd_repstat = NFSERR_RESOURCE; 681 *repp = nfsd_errmap(nd); 682 if (op == NFSV4OP_SETATTR) { 683 /* 684 * Setattr replies require a bitmap. 685 * even for errors like these. 686 */ 687 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 688 *tl = 0; 689 } 690 retops++; 691 break; 692 } 693 if (nfsv4_opflag[op].savereply) 694 nd->nd_flag |= ND_SAVEREPLY; 695 NFSINCRGLOBAL(newnfsstats.srvrpccnt[nd->nd_procnum]); 696 switch (op) { 697 case NFSV4OP_PUTFH: 698 error = nfsrv_mtofh(nd, &fh); 699 if (error) 700 goto nfsmout; 701 if (!nd->nd_repstat) { 702 nes.nes_vfslocked = vpnes.nes_vfslocked; 703 nfsd_fhtovp(nd, &fh, &nvp, &nes, &mp, 704 0, p); 705 } 706 /* For now, allow this for non-export FHs */ 707 if (!nd->nd_repstat) { 708 if (vp) 709 vrele(vp); 710 vp = nvp; 711 NFSVOPUNLOCK(vp, 0, p); 712 vpnes = nes; 713 } 714 break; 715 case NFSV4OP_PUTPUBFH: 716 if (nfs_pubfhset) { 717 nes.nes_vfslocked = vpnes.nes_vfslocked; 718 nfsd_fhtovp(nd, &nfs_pubfh, &nvp, 719 &nes, &mp, 0, p); 720 } else { 721 nd->nd_repstat = NFSERR_NOFILEHANDLE; 722 } 723 if (!nd->nd_repstat) { 724 if (vp) 725 vrele(vp); 726 vp = nvp; 727 NFSVOPUNLOCK(vp, 0, p); 728 vpnes = nes; 729 } 730 break; 731 case NFSV4OP_PUTROOTFH: 732 if (nfs_rootfhset) { 733 nes.nes_vfslocked = vpnes.nes_vfslocked; 734 nfsd_fhtovp(nd, &nfs_rootfh, &nvp, 735 &nes, &mp, 0, p); 736 if (!nd->nd_repstat) { 737 if (vp) 738 vrele(vp); 739 vp = nvp; 740 NFSVOPUNLOCK(vp, 0, p); 741 vpnes = nes; 742 } 743 } else if (nfsv4root_vp && nfsv4root_set) { 744 if (vp) { 745 if (vpnes.nes_vfslocked) 746 nfsvno_unlockvfs(mp); 747 vrele(vp); 748 } 749 vp = nfsv4root_vp; 750 VREF(vp); 751 NFSVNO_SETEXRDONLY(&vpnes); 752 vpnes.nes_vfslocked = 0; 753 mp = vnode_mount(vp); 754 } else { 755 nd->nd_repstat = NFSERR_NOFILEHANDLE; 756 } 757 break; 758 case NFSV4OP_SAVEFH: 759 if (vp && NFSVNO_EXPORTED(&vpnes)) { 760 nd->nd_repstat = 0; 761 /* If vp == savevp, a no-op */ 762 if (vp != savevp) { 763 if (savevp) 764 vrele(savevp); 765 VREF(vp); 766 savevp = vp; 767 savevpnes = vpnes; 768 savemp = mp; 769 } 770 } else { 771 nd->nd_repstat = NFSERR_NOFILEHANDLE; 772 } 773 break; 774 case NFSV4OP_RESTOREFH: 775 if (savevp) { 776 nd->nd_repstat = 0; 777 /* If vp == savevp, a no-op */ 778 if (vp != savevp) { 779 VREF(savevp); 780 if (mp == NULL || savemp == NULL) 781 panic("nfscmpmp"); 782 if (!savevpnes.nes_vfslocked && 783 vpnes.nes_vfslocked) { 784 if (mp == savemp) 785 panic("nfscmp2"); 786 nfsvno_unlockvfs(mp); 787 } else if (savevpnes.nes_vfslocked && 788 !vpnes.nes_vfslocked) { 789 if (mp == savemp) 790 panic("nfscmp3"); 791 savevpnes.nes_vfslocked = nfsvno_lockvfs(savemp); 792 } 793 vrele(vp); 794 vp = savevp; 795 vpnes = savevpnes; 796 mp = savemp; 797 } 798 } else { 799 nd->nd_repstat = NFSERR_RESTOREFH; 800 } 801 break; 802 default: 803 /* 804 * Allow a Lookup, Getattr, GetFH, Secinfo on an 805 * non-exported directory if 806 * nfs_rootfhset. Do I need to allow any other Ops? 807 * (You can only have a non-exported vpnes if 808 * nfs_rootfhset is true. See nfsd_fhtovp()) 809 * Allow AUTH_SYS to be used for file systems 810 * exported GSS only for certain Ops, to allow 811 * clients to do mounts more easily. 812 */ 813 if (nfsv4_opflag[op].needscfh && vp) { 814 if (!NFSVNO_EXPORTED(&vpnes) && 815 op != NFSV4OP_LOOKUP && 816 op != NFSV4OP_GETATTR && 817 op != NFSV4OP_GETFH && 818 op != NFSV4OP_SECINFO) 819 nd->nd_repstat = NFSERR_NOFILEHANDLE; 820 else if (nfsvno_testexp(nd, &vpnes) && 821 op != NFSV4OP_LOOKUP && 822 op != NFSV4OP_GETFH && 823 op != NFSV4OP_GETATTR && 824 op != NFSV4OP_SECINFO) 825 nd->nd_repstat = NFSERR_WRONGSEC; 826 if (nd->nd_repstat) { 827 if (op == NFSV4OP_SETATTR) { 828 /* 829 * Setattr reply requires a bitmap 830 * even for errors like these. 831 */ 832 NFSM_BUILD(tl, u_int32_t *, 833 NFSX_UNSIGNED); 834 *tl = 0; 835 } 836 break; 837 } 838 } 839 if (nfsv4_opflag[op].retfh == 1) { 840 if (!vp) { 841 nd->nd_repstat = NFSERR_NOFILEHANDLE; 842 break; 843 } 844 VREF(vp); 845 if (nfsv4_opflag[op].modifyfs) 846 NFS_STARTWRITE(NULL, &mp); 847 error = (*(nfsrv4_ops1[op]))(nd, isdgram, vp, 848 &nvp, (fhandle_t *)fh.nfsrvfh_data, p, &vpnes); 849 if (!error && !nd->nd_repstat) { 850 if (vfs_statfs(mp)->f_fsid.val[0] != 851 vfs_statfs(vnode_mount(nvp))->f_fsid.val[0] || 852 vfs_statfs(mp)->f_fsid.val[1] != 853 vfs_statfs(vnode_mount(nvp))->f_fsid.val[1]) { 854 if (vfs_statfs(vnode_mount(nvp))->f_fsid.val[0] == 855 NFSV4ROOT_FSID0 && 856 vfs_statfs(vnode_mount(nvp))->f_fsid.val[1] == 857 NFSV4ROOT_FSID1) { 858 if (vpnes.nes_vfslocked) { 859 nfsvno_unlockvfs(mp); 860 vpnes.nes_vfslocked = 0; 861 } 862 NFSVNO_SETEXRDONLY(&vpnes); 863 mp = vnode_mount(nvp); 864 } else { 865 nd->nd_repstat = nfsvno_checkexp(vnode_mount(nvp), 866 nd->nd_nam, &nes, &credanon); 867 if (!nd->nd_repstat) 868 nd->nd_repstat = nfsd_excred(nd, 869 &nes, credanon); 870 if (credanon != NULL) 871 crfree(credanon); 872 if (!nd->nd_repstat) { 873 if (vpnes.nes_vfslocked) 874 nfsvno_unlockvfs(mp); 875 mp = vnode_mount(nvp); 876 vpnes = nes; 877 vpnes.nes_vfslocked = 878 nfsvno_lockvfs(mp); 879 } 880 } 881 } 882 if (!nd->nd_repstat) { 883 vrele(vp); 884 vp = nvp; 885 } 886 } 887 if (nfsv4_opflag[op].modifyfs) 888 NFS_ENDWRITE(mp); 889 } else if (nfsv4_opflag[op].retfh == 2) { 890 if (vp == NULL || savevp == NULL) { 891 nd->nd_repstat = NFSERR_NOFILEHANDLE; 892 break; 893 } else if (mp != savemp) { 894 nd->nd_repstat = NFSERR_XDEV; 895 break; 896 } 897 VREF(vp); 898 VREF(savevp); 899 if (nfsv4_opflag[op].modifyfs) 900 NFS_STARTWRITE(NULL, &mp); 901 NFSVOPLOCK(savevp, LK_EXCLUSIVE | LK_RETRY, p); 902 error = (*(nfsrv4_ops2[op]))(nd, isdgram, savevp, 903 vp, p, &savevpnes, &vpnes); 904 if (nfsv4_opflag[op].modifyfs) 905 NFS_ENDWRITE(mp); 906 } else { 907 if (nfsv4_opflag[op].retfh != 0) 908 panic("nfsrvd_compound"); 909 if (nfsv4_opflag[op].needscfh) { 910 if (vp) { 911 VREF(vp); 912 if (nfsv4_opflag[op].modifyfs) 913 NFS_STARTWRITE(NULL, &mp); 914 NFSVOPLOCK(vp, LK_EXCLUSIVE | LK_RETRY, p); 915 } else { 916 nd->nd_repstat = NFSERR_NOFILEHANDLE; 917 if (op == NFSV4OP_SETATTR) { 918 /* 919 * Setattr reply requires a bitmap 920 * even for errors like these. 921 */ 922 NFSM_BUILD(tl, u_int32_t *, 923 NFSX_UNSIGNED); 924 *tl = 0; 925 } 926 break; 927 } 928 error = (*(nfsrv4_ops0[op]))(nd, isdgram, vp, 929 p, &vpnes); 930 if (nfsv4_opflag[op].modifyfs) 931 NFS_ENDWRITE(mp); 932 } else { 933 error = (*(nfsrv4_ops0[op]))(nd, isdgram, 934 NULL, p, &vpnes); 935 } 936 } 937 }; 938 if (error) { 939 if (error == EBADRPC || error == NFSERR_BADXDR) { 940 nd->nd_repstat = NFSERR_BADXDR; 941 } else { 942 nd->nd_repstat = error; 943 printf("nfsv4 comperr0=%d\n", error); 944 } 945 error = 0; 946 } 947 retops++; 948 if (nd->nd_repstat) { 949 *repp = nfsd_errmap(nd); 950 break; 951 } else { 952 *repp = 0; /* NFS4_OK */ 953 } 954 } 955nfsmout: 956 if (error) { 957 if (error == EBADRPC || error == NFSERR_BADXDR) 958 nd->nd_repstat = NFSERR_BADXDR; 959 else 960 printf("nfsv4 comperr1=%d\n", error); 961 } 962 if (taglen == -1) { 963 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 964 *tl++ = 0; 965 *tl = 0; 966 } else { 967 *retopsp = txdr_unsigned(retops); 968 } 969 if (mp && vpnes.nes_vfslocked) 970 nfsvno_unlockvfs(mp); 971 if (vp) 972 vrele(vp); 973 if (savevp) 974 vrele(savevp); 975 NFSLOCKV4ROOTMUTEX(); 976 nfsv4_relref(&nfsv4rootfs_lock); 977 NFSUNLOCKV4ROOTMUTEX(); 978} 979