nfs_nfsdsocket.c revision 191940
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 191940 2009-05-09 18:09:17Z kan $"); 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#ifdef DIAGNOSTIC 368 if (nd->nd_repstat) 369 panic("nfsrvd_dorpc"); 370#endif 371 /* 372 * For NFSv3, if the malloc/mget allocation is near limits, 373 * return NFSERR_DELAY. 374 */ 375 if ((nd->nd_flag & ND_NFSV3) && nfsrv_mallocmget_limit()) { 376 nd->nd_repstat = NFSERR_DELAY; 377 vp = NULL; 378 } else { 379 error = nfsrv_mtofh(nd, &fh); 380 if (error) { 381 if (error != EBADRPC) 382 printf("nfs dorpc err1=%d\n", error); 383 nd->nd_repstat = NFSERR_GARBAGE; 384 return; 385 } 386 nes.nes_vfslocked = 0; 387 if (nd->nd_flag & ND_PUBLOOKUP) 388 nfsd_fhtovp(nd, &nfs_pubfh, &vp, &nes, 389 &mp, nfs_writerpc[nd->nd_procnum], p); 390 else 391 nfsd_fhtovp(nd, &fh, &vp, &nes, 392 &mp, nfs_writerpc[nd->nd_procnum], p); 393 if (nd->nd_repstat == NFSERR_PROGNOTV4) 394 return; 395 } 396 } 397 398 /* 399 * For V2 and 3, set the ND_SAVEREPLY flag for the recent request 400 * cache, as required. 401 * For V4, nfsrvd_compound() does this. 402 */ 403 if (!(nd->nd_flag & ND_NFSV4) && nfsrv_nonidempotent[nd->nd_procnum]) 404 nd->nd_flag |= ND_SAVEREPLY; 405 406 nfsrvd_rephead(nd); 407 /* 408 * If nd_repstat is non-zero, just fill in the reply status 409 * to complete the RPC reply for V2. Otherwise, you must do 410 * the RPC. 411 */ 412 if (nd->nd_repstat && (nd->nd_flag & ND_NFSV2)) { 413 *nd->nd_errp = nfsd_errmap(nd); 414 NFSINCRGLOBAL(newnfsstats.srvrpccnt[nfsv3to4op[nd->nd_procnum]]); 415 if (mp != NULL) { 416 if (nfs_writerpc[nd->nd_procnum]) 417 NFS_ENDWRITE(mp); 418 if (nes.nes_vfslocked) 419 nfsvno_unlockvfs(mp); 420 } 421 return; 422 } 423 424 /* 425 * Now the procedure can be performed. For V4, nfsrvd_compound() 426 * works through the sub-rpcs, otherwise just call the procedure. 427 * The procedures are in three groups with different arguments. 428 * The group is indicated by the value in nfs_retfh[]. 429 */ 430 if (nd->nd_flag & ND_NFSV4) { 431 nfsrvd_compound(nd, isdgram, p); 432 } else { 433 if (nfs_retfh[nd->nd_procnum] == 1) { 434 if (vp) 435 NFSVOPUNLOCK(vp, 0, p); 436 error = (*(nfsrv3_procs1[nd->nd_procnum]))(nd, isdgram, 437 vp, NULL, (fhandle_t *)fh.nfsrvfh_data, p, &nes); 438 } else if (nfs_retfh[nd->nd_procnum] == 2) { 439 error = (*(nfsrv3_procs2[nd->nd_procnum]))(nd, isdgram, 440 vp, NULL, p, &nes, NULL); 441 } else { 442 error = (*(nfsrv3_procs0[nd->nd_procnum]))(nd, isdgram, 443 vp, p, &nes); 444 } 445 if (mp) { 446 if (nfs_writerpc[nd->nd_procnum]) 447 NFS_ENDWRITE(mp); 448 if (nes.nes_vfslocked) 449 nfsvno_unlockvfs(mp); 450 } 451 NFSINCRGLOBAL(newnfsstats.srvrpccnt[nfsv3to4op[nd->nd_procnum]]); 452 } 453 if (error) { 454 if (error != EBADRPC) 455 printf("nfs dorpc err2=%d\n", error); 456 nd->nd_repstat = NFSERR_GARBAGE; 457 } 458 *nd->nd_errp = nfsd_errmap(nd); 459 460 /* 461 * Don't cache certain reply status values. 462 */ 463 if (nd->nd_repstat && (nd->nd_flag & ND_SAVEREPLY) && 464 (nd->nd_repstat == NFSERR_GARBAGE || 465 nd->nd_repstat == NFSERR_BADXDR || 466 nd->nd_repstat == NFSERR_MOVED || 467 nd->nd_repstat == NFSERR_DELAY || 468 nd->nd_repstat == NFSERR_BADSEQID || 469 nd->nd_repstat == NFSERR_RESOURCE || 470 nd->nd_repstat == NFSERR_SERVERFAULT || 471 nd->nd_repstat == NFSERR_STALECLIENTID || 472 nd->nd_repstat == NFSERR_STALESTATEID || 473 nd->nd_repstat == NFSERR_OLDSTATEID || 474 nd->nd_repstat == NFSERR_BADSTATEID || 475 nd->nd_repstat == NFSERR_GRACE || 476 nd->nd_repstat == NFSERR_NOGRACE)) 477 nd->nd_flag &= ~ND_SAVEREPLY; 478} 479 480/* 481 * Breaks down a compound RPC request and calls the server routines for 482 * the subprocedures. 483 * Some suboperations are performed directly here to simplify file handle<--> 484 * vnode pointer handling. 485 */ 486static void 487nfsrvd_compound(struct nfsrv_descript *nd, int isdgram, 488 NFSPROC_T *p) 489{ 490 int i, op; 491 u_int32_t *tl; 492 struct nfsclient *clp, *nclp; 493 int numops, taglen = -1, error = 0, igotlock; 494 u_int32_t minorvers, retops = 0, *retopsp = NULL, *repp; 495 u_char tag[NFSV4_SMALLSTR + 1], *tagstr; 496 vnode_t vp, nvp, savevp; 497 struct nfsrvfh fh; 498 mount_t mp, savemp; 499 struct ucred *credanon; 500 struct nfsexstuff nes, vpnes, savevpnes; 501 static u_int64_t compref = 0; 502 503 NFSVNO_EXINIT(&vpnes); 504 NFSVNO_EXINIT(&savevpnes); 505 /* 506 * Put the seq# of the current compound RPC in nfsrv_descript. 507 * (This is used by nfsrv_checkgetattr(), to see if the write 508 * delegation was created by the same compound RPC as the one 509 * with that Getattr in it.) 510 * Don't worry about the 64bit number wrapping around. It ain't 511 * gonna happen before this server gets shut down/rebooted. 512 */ 513 nd->nd_compref = compref++; 514 515 /* 516 * Check for and optionally get a lock on the root. This lock means that 517 * no nfsd will be fiddling with the V4 file system and state stuff. It 518 * is required when the V4 root is being changed, the stable storage 519 * restart file is being updated, or callbacks are being done. 520 * When any of the nfsd are processing an NFSv4 compound RPC, they must 521 * either hold a reference count (nfs_usecnt) or the lock. When 522 * nfsrv_unlock() is called to release the lock, it can optionally 523 * also get a reference count, which saves the need for a call to 524 * nfsrv_getref() after nfsrv_unlock(). 525 */ 526 /* 527 * First, check to see if we need to wait for an update lock. 528 */ 529 igotlock = 0; 530 NFSLOCKV4ROOTMUTEX(); 531 if (nfsrv_stablefirst.nsf_flags & NFSNSF_NEEDLOCK) 532 igotlock = nfsv4_lock(&nfsv4rootfs_lock, 1, NULL, 533 NFSV4ROOTLOCKMUTEXPTR); 534 else 535 igotlock = nfsv4_lock(&nfsv4rootfs_lock, 0, NULL, 536 NFSV4ROOTLOCKMUTEXPTR); 537 NFSUNLOCKV4ROOTMUTEX(); 538 if (igotlock) { 539 NFSLOCKSTATE(); /* to avoid a race with */ 540 NFSUNLOCKSTATE(); /* nfsrv_servertimer() */ 541 /* 542 * If I got the lock, I can update the stable storage file. 543 * Done when the grace period is over or a client has long 544 * since expired. 545 */ 546 nfsrv_stablefirst.nsf_flags &= ~NFSNSF_NEEDLOCK; 547 if ((nfsrv_stablefirst.nsf_flags & 548 (NFSNSF_GRACEOVER | NFSNSF_UPDATEDONE)) == NFSNSF_GRACEOVER) 549 nfsrv_updatestable(p); 550 551 /* 552 * If at least one client has long since expired, search 553 * the client list for them, write a REVOKE record on the 554 * stable storage file and then remove them from the client 555 * list. 556 */ 557 if (nfsrv_stablefirst.nsf_flags & NFSNSF_EXPIREDCLIENT) { 558 nfsrv_stablefirst.nsf_flags &= ~NFSNSF_EXPIREDCLIENT; 559 for (i = 0; i < NFSCLIENTHASHSIZE; i++) { 560 LIST_FOREACH_SAFE(clp, &nfsclienthash[i], lc_hash, 561 nclp) { 562 if (clp->lc_flags & LCL_EXPIREIT) { 563 if (!LIST_EMPTY(&clp->lc_open) || 564 !LIST_EMPTY(&clp->lc_deleg)) 565 nfsrv_writestable(clp->lc_id, 566 clp->lc_idlen, NFSNST_REVOKE, p); 567 nfsrv_cleanclient(clp, p); 568 nfsrv_freedeleglist(&clp->lc_deleg); 569 nfsrv_freedeleglist(&clp->lc_olddeleg); 570 LIST_REMOVE(clp, lc_hash); 571 nfsrv_zapclient(clp, p); 572 } 573 } 574 } 575 } 576 NFSLOCKV4ROOTMUTEX(); 577 nfsv4_unlock(&nfsv4rootfs_lock, 1); 578 NFSUNLOCKV4ROOTMUTEX(); 579 } else { 580 /* 581 * If we didn't get the lock, we need to get a refcnt, 582 * which also checks for and waits for the lock. 583 */ 584 NFSLOCKV4ROOTMUTEX(); 585 nfsv4_getref(&nfsv4rootfs_lock, NULL, 586 NFSV4ROOTLOCKMUTEXPTR); 587 NFSUNLOCKV4ROOTMUTEX(); 588 } 589 590 /* 591 * If flagged, search for open owners that haven't had any opens 592 * for a long time. 593 */ 594 if (nfsrv_stablefirst.nsf_flags & NFSNSF_NOOPENS) { 595 nfsrv_throwawayopens(p); 596 } 597 598 savevp = vp = NULL; 599 savevpnes.nes_vfslocked = vpnes.nes_vfslocked = 0; 600 savemp = mp = NULL; 601 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 602 taglen = fxdr_unsigned(int, *tl); 603 if (taglen < 0) { 604 error = EBADRPC; 605 goto nfsmout; 606 } 607 if (taglen <= NFSV4_SMALLSTR) 608 tagstr = tag; 609 else 610 tagstr = malloc(taglen + 1, M_TEMP, M_WAITOK); 611 error = nfsrv_mtostr(nd, tagstr, taglen); 612 if (error) { 613 if (taglen > NFSV4_SMALLSTR) 614 free(tagstr, M_TEMP); 615 taglen = -1; 616 goto nfsmout; 617 } 618 (void) nfsm_strtom(nd, tag, taglen); 619 if (taglen > NFSV4_SMALLSTR) { 620 free(tagstr, M_TEMP); 621 } 622 NFSM_BUILD(retopsp, u_int32_t *, NFSX_UNSIGNED); 623 NFSM_DISSECT(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 624 minorvers = fxdr_unsigned(u_int32_t, *tl++); 625 if (minorvers != NFSV4_MINORVERSION) 626 nd->nd_repstat = NFSERR_MINORVERMISMATCH; 627 if (nd->nd_repstat) 628 numops = 0; 629 else 630 numops = fxdr_unsigned(int, *tl); 631 /* 632 * Loop around doing the sub ops. 633 * vp - is an unlocked vnode pointer for the CFH 634 * savevp - is an unlocked vnode pointer for the SAVEDFH 635 * (at some future date, it might turn out to be more appropriate 636 * to keep the file handles instead of vnode pointers?) 637 * savevpnes and vpnes - are the export flags for the above. 638 */ 639 for (i = 0; i < numops; i++) { 640 NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); 641 NFSM_BUILD(repp, u_int32_t *, 2 * NFSX_UNSIGNED); 642 *repp++ = *tl; 643 op = fxdr_unsigned(int, *tl); 644 if (op < NFSV4OP_ACCESS || op >= NFSV4OP_NOPS) { 645 nd->nd_repstat = NFSERR_OPILLEGAL; 646 *repp = nfsd_errmap(nd); 647 retops++; 648 break; 649 } 650 651 /* 652 * Check for a referral on the current FH and, if so, return 653 * NFSERR_MOVED for all ops that allow it, except Getattr. 654 */ 655 if (vp != NULL && op != NFSV4OP_GETATTR && 656 nfsv4root_getreferral(vp, NULL, 0) != NULL && 657 nfsrv_errmoved(op)) { 658 nd->nd_repstat = NFSERR_MOVED; 659 *repp = nfsd_errmap(nd); 660 retops++; 661 break; 662 } 663 664 nd->nd_procnum = op; 665 /* 666 * If over flood level, reply NFSERR_RESOURCE, if at the first 667 * Op. (Since a client recovery from NFSERR_RESOURCE can get 668 * really nasty for certain Op sequences, I'll play it safe 669 * and only return the error at the beginning.) The cache 670 * will still function over flood level, but uses lots of 671 * mbufs.) 672 * If nfsrv_mallocmget_limit() returns True, the system is near 673 * to its limit for memory that malloc()/mget() can allocate. 674 */ 675 if (i == 0 && nd->nd_rp->rc_refcnt == 0 && 676 (nfsrv_mallocmget_limit() || 677 nfsrc_tcpsavedreplies > nfsrc_floodlevel)) { 678 if (nfsrc_tcpsavedreplies > nfsrc_floodlevel) { 679 printf("nfsd server cache flooded, try to"); 680 printf(" increase nfsrc_floodlevel\n"); 681 } 682 nd->nd_repstat = NFSERR_RESOURCE; 683 *repp = nfsd_errmap(nd); 684 if (op == NFSV4OP_SETATTR) { 685 /* 686 * Setattr replies require a bitmap. 687 * even for errors like these. 688 */ 689 NFSM_BUILD(tl, u_int32_t *, NFSX_UNSIGNED); 690 *tl = 0; 691 } 692 retops++; 693 break; 694 } 695 if (nfsv4_opflag[op].savereply) 696 nd->nd_flag |= ND_SAVEREPLY; 697 NFSINCRGLOBAL(newnfsstats.srvrpccnt[nd->nd_procnum]); 698 switch (op) { 699 case NFSV4OP_PUTFH: 700 error = nfsrv_mtofh(nd, &fh); 701 if (error) 702 goto nfsmout; 703 if (!nd->nd_repstat) { 704 nes.nes_vfslocked = vpnes.nes_vfslocked; 705 nfsd_fhtovp(nd, &fh, &nvp, &nes, &mp, 706 0, p); 707 } 708 /* For now, allow this for non-export FHs */ 709 if (!nd->nd_repstat) { 710 if (vp) 711 vrele(vp); 712 vp = nvp; 713 NFSVOPUNLOCK(vp, 0, p); 714 vpnes = nes; 715 } 716 break; 717 case NFSV4OP_PUTPUBFH: 718 if (nfs_pubfhset) { 719 nes.nes_vfslocked = vpnes.nes_vfslocked; 720 nfsd_fhtovp(nd, &nfs_pubfh, &nvp, 721 &nes, &mp, 0, p); 722 } else { 723 nd->nd_repstat = NFSERR_NOFILEHANDLE; 724 } 725 if (!nd->nd_repstat) { 726 if (vp) 727 vrele(vp); 728 vp = nvp; 729 NFSVOPUNLOCK(vp, 0, p); 730 vpnes = nes; 731 } 732 break; 733 case NFSV4OP_PUTROOTFH: 734 if (nfs_rootfhset) { 735 nes.nes_vfslocked = vpnes.nes_vfslocked; 736 nfsd_fhtovp(nd, &nfs_rootfh, &nvp, 737 &nes, &mp, 0, p); 738 if (!nd->nd_repstat) { 739 if (vp) 740 vrele(vp); 741 vp = nvp; 742 NFSVOPUNLOCK(vp, 0, p); 743 vpnes = nes; 744 } 745 } else if (nfsv4root_vp && nfsv4root_set) { 746 if (vp) { 747 if (vpnes.nes_vfslocked) 748 nfsvno_unlockvfs(mp); 749 vrele(vp); 750 } 751 vp = nfsv4root_vp; 752 VREF(vp); 753 NFSVNO_SETEXRDONLY(&vpnes); 754 vpnes.nes_vfslocked = 0; 755 mp = vnode_mount(vp); 756 } else { 757 nd->nd_repstat = NFSERR_NOFILEHANDLE; 758 } 759 break; 760 case NFSV4OP_SAVEFH: 761 if (vp && NFSVNO_EXPORTED(&vpnes)) { 762 nd->nd_repstat = 0; 763 /* If vp == savevp, a no-op */ 764 if (vp != savevp) { 765 if (savevp) 766 vrele(savevp); 767 VREF(vp); 768 savevp = vp; 769 savevpnes = vpnes; 770 savemp = mp; 771 } 772 } else { 773 nd->nd_repstat = NFSERR_NOFILEHANDLE; 774 } 775 break; 776 case NFSV4OP_RESTOREFH: 777 if (savevp) { 778 nd->nd_repstat = 0; 779 /* If vp == savevp, a no-op */ 780 if (vp != savevp) { 781 VREF(savevp); 782 if (mp == NULL || savemp == NULL) 783 panic("nfscmpmp"); 784 if (!savevpnes.nes_vfslocked && 785 vpnes.nes_vfslocked) { 786 if (mp == savemp) 787 panic("nfscmp2"); 788 nfsvno_unlockvfs(mp); 789 } else if (savevpnes.nes_vfslocked && 790 !vpnes.nes_vfslocked) { 791 if (mp == savemp) 792 panic("nfscmp3"); 793 savevpnes.nes_vfslocked = nfsvno_lockvfs(savemp); 794 } 795 vrele(vp); 796 vp = savevp; 797 vpnes = savevpnes; 798 mp = savemp; 799 } 800 } else { 801 nd->nd_repstat = NFSERR_RESTOREFH; 802 } 803 break; 804 default: 805 /* 806 * Allow a Lookup, Getattr, GetFH, Secinfo on an 807 * non-exported directory if 808 * nfs_rootfhset. Do I need to allow any other Ops? 809 * (You can only have a non-exported vpnes if 810 * nfs_rootfhset is true. See nfsd_fhtovp()) 811 * Allow AUTH_SYS to be used for file systems 812 * exported GSS only for certain Ops, to allow 813 * clients to do mounts more easily. 814 */ 815 if (nfsv4_opflag[op].needscfh && vp) { 816 if (!NFSVNO_EXPORTED(&vpnes) && 817 op != NFSV4OP_LOOKUP && 818 op != NFSV4OP_GETATTR && 819 op != NFSV4OP_GETFH && 820 op != NFSV4OP_SECINFO) 821 nd->nd_repstat = NFSERR_NOFILEHANDLE; 822 else if (NFSVNO_EXGSSONLY(&vpnes) && 823 !(nd->nd_flag & ND_GSS) && 824 op != NFSV4OP_LOOKUP && 825 op != NFSV4OP_GETFH && 826 op != NFSV4OP_GETATTR && 827 op != NFSV4OP_SECINFO) 828 nd->nd_repstat = NFSERR_WRONGSEC; 829 if (nd->nd_repstat) { 830 if (op == NFSV4OP_SETATTR) { 831 /* 832 * Setattr reply requires a bitmap 833 * even for errors like these. 834 */ 835 NFSM_BUILD(tl, u_int32_t *, 836 NFSX_UNSIGNED); 837 *tl = 0; 838 } 839 break; 840 } 841 } 842 if (nfsv4_opflag[op].retfh == 1) { 843 if (!vp) { 844 nd->nd_repstat = NFSERR_NOFILEHANDLE; 845 break; 846 } 847 VREF(vp); 848 if (nfsv4_opflag[op].modifyfs) 849 NFS_STARTWRITE(NULL, &mp); 850 error = (*(nfsrv4_ops1[op]))(nd, isdgram, vp, 851 &nvp, (fhandle_t *)fh.nfsrvfh_data, p, &vpnes); 852 if (!error && !nd->nd_repstat) { 853 if (vfs_statfs(mp)->f_fsid.val[0] != 854 vfs_statfs(vnode_mount(nvp))->f_fsid.val[0] || 855 vfs_statfs(mp)->f_fsid.val[1] != 856 vfs_statfs(vnode_mount(nvp))->f_fsid.val[1]) { 857 if (vfs_statfs(vnode_mount(nvp))->f_fsid.val[0] == 858 NFSV4ROOT_FSID0 && 859 vfs_statfs(vnode_mount(nvp))->f_fsid.val[1] == 860 NFSV4ROOT_FSID1) { 861 if (vpnes.nes_vfslocked) { 862 nfsvno_unlockvfs(mp); 863 vpnes.nes_vfslocked = 0; 864 } 865 NFSVNO_SETEXRDONLY(&vpnes); 866 mp = vnode_mount(nvp); 867 } else { 868 nd->nd_repstat = nfsvno_checkexp(vnode_mount(nvp), 869 nd->nd_nam, &nes, &credanon); 870 if (!nd->nd_repstat) 871 nd->nd_repstat = nfsd_excred(nd, 872 &nes, credanon); 873 if (credanon != NULL) 874 crfree(credanon); 875 if (!nd->nd_repstat) { 876 if (vpnes.nes_vfslocked) 877 nfsvno_unlockvfs(mp); 878 mp = vnode_mount(nvp); 879 vpnes = nes; 880 vpnes.nes_vfslocked = 881 nfsvno_lockvfs(mp); 882 } 883 } 884 } 885 if (!nd->nd_repstat) { 886 vrele(vp); 887 vp = nvp; 888 } 889 } 890 if (nfsv4_opflag[op].modifyfs) 891 NFS_ENDWRITE(mp); 892 } else if (nfsv4_opflag[op].retfh == 2) { 893 if (vp == NULL || savevp == NULL) { 894 nd->nd_repstat = NFSERR_NOFILEHANDLE; 895 break; 896 } else if (mp != savemp) { 897 nd->nd_repstat = NFSERR_XDEV; 898 break; 899 } 900 VREF(vp); 901 VREF(savevp); 902 if (nfsv4_opflag[op].modifyfs) 903 NFS_STARTWRITE(NULL, &mp); 904 NFSVOPLOCK(savevp, LK_EXCLUSIVE | LK_RETRY, p); 905 error = (*(nfsrv4_ops2[op]))(nd, isdgram, savevp, 906 vp, p, &savevpnes, &vpnes); 907 if (nfsv4_opflag[op].modifyfs) 908 NFS_ENDWRITE(mp); 909 } else { 910 if (nfsv4_opflag[op].retfh != 0) 911 panic("nfsrvd_compound"); 912 if (nfsv4_opflag[op].needscfh) { 913 if (vp) { 914 VREF(vp); 915 if (nfsv4_opflag[op].modifyfs) 916 NFS_STARTWRITE(NULL, &mp); 917 NFSVOPLOCK(vp, LK_EXCLUSIVE | LK_RETRY, p); 918 } else { 919 nd->nd_repstat = NFSERR_NOFILEHANDLE; 920 if (op == NFSV4OP_SETATTR) { 921 /* 922 * Setattr reply requires a bitmap 923 * even for errors like these. 924 */ 925 NFSM_BUILD(tl, u_int32_t *, 926 NFSX_UNSIGNED); 927 *tl = 0; 928 } 929 break; 930 } 931 error = (*(nfsrv4_ops0[op]))(nd, isdgram, vp, 932 p, &vpnes); 933 if (nfsv4_opflag[op].modifyfs) 934 NFS_ENDWRITE(mp); 935 } else { 936 error = (*(nfsrv4_ops0[op]))(nd, isdgram, 937 NULL, p, &vpnes); 938 } 939 } 940 }; 941 if (error) { 942 if (error == EBADRPC || error == NFSERR_BADXDR) { 943 nd->nd_repstat = NFSERR_BADXDR; 944 } else { 945 nd->nd_repstat = error; 946 printf("nfsv4 comperr0=%d\n", error); 947 } 948 error = 0; 949 } 950 retops++; 951 if (nd->nd_repstat) { 952 *repp = nfsd_errmap(nd); 953 break; 954 } else { 955 *repp = 0; /* NFS4_OK */ 956 } 957 } 958nfsmout: 959 if (error) { 960 if (error == EBADRPC || error == NFSERR_BADXDR) 961 nd->nd_repstat = NFSERR_BADXDR; 962 else 963 printf("nfsv4 comperr1=%d\n", error); 964 } 965 if (taglen == -1) { 966 NFSM_BUILD(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 967 *tl++ = 0; 968 *tl = 0; 969 } else { 970 *retopsp = txdr_unsigned(retops); 971 } 972 if (mp && vpnes.nes_vfslocked) 973 nfsvno_unlockvfs(mp); 974 if (vp) 975 vrele(vp); 976 if (savevp) 977 vrele(savevp); 978 NFSLOCKV4ROOTMUTEX(); 979 nfsv4_relref(&nfsv4rootfs_lock); 980 NFSUNLOCKV4ROOTMUTEX(); 981} 982