nfs_subs.c revision 1.26
1 1.26 fvdl /* $NetBSD: nfs_subs.c,v 1.26 1996/03/13 00:44:17 fvdl Exp $ */ 2 1.14 cgd 3 1.1 cgd /* 4 1.12 mycroft * Copyright (c) 1989, 1993 5 1.12 mycroft * The Regents of the University of California. All rights reserved. 6 1.1 cgd * 7 1.1 cgd * This code is derived from software contributed to Berkeley by 8 1.1 cgd * Rick Macklem at The University of Guelph. 9 1.1 cgd * 10 1.1 cgd * Redistribution and use in source and binary forms, with or without 11 1.1 cgd * modification, are permitted provided that the following conditions 12 1.1 cgd * are met: 13 1.1 cgd * 1. Redistributions of source code must retain the above copyright 14 1.1 cgd * notice, this list of conditions and the following disclaimer. 15 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright 16 1.1 cgd * notice, this list of conditions and the following disclaimer in the 17 1.1 cgd * documentation and/or other materials provided with the distribution. 18 1.1 cgd * 3. All advertising materials mentioning features or use of this software 19 1.1 cgd * must display the following acknowledgement: 20 1.1 cgd * This product includes software developed by the University of 21 1.1 cgd * California, Berkeley and its contributors. 22 1.1 cgd * 4. Neither the name of the University nor the names of its contributors 23 1.1 cgd * may be used to endorse or promote products derived from this software 24 1.1 cgd * without specific prior written permission. 25 1.1 cgd * 26 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 1.1 cgd * SUCH DAMAGE. 37 1.1 cgd * 38 1.25 fvdl * @(#)nfs_subs.c 8.8 (Berkeley) 5/22/95 39 1.1 cgd */ 40 1.1 cgd 41 1.25 fvdl 42 1.1 cgd /* 43 1.1 cgd * These functions support the macros and help fiddle mbuf chains for 44 1.1 cgd * the nfs op functions. They do things like create the rpc header and 45 1.1 cgd * copy data between mbuf chains and uio lists. 46 1.1 cgd */ 47 1.9 mycroft #include <sys/param.h> 48 1.9 mycroft #include <sys/proc.h> 49 1.9 mycroft #include <sys/systm.h> 50 1.9 mycroft #include <sys/kernel.h> 51 1.9 mycroft #include <sys/mount.h> 52 1.9 mycroft #include <sys/vnode.h> 53 1.9 mycroft #include <sys/namei.h> 54 1.9 mycroft #include <sys/mbuf.h> 55 1.12 mycroft #include <sys/socket.h> 56 1.12 mycroft #include <sys/stat.h> 57 1.25 fvdl #include <sys/malloc.h> 58 1.25 fvdl 59 1.25 fvdl #include <vm/vm.h> 60 1.1 cgd 61 1.9 mycroft #include <nfs/rpcv2.h> 62 1.25 fvdl #include <nfs/nfsproto.h> 63 1.9 mycroft #include <nfs/nfsnode.h> 64 1.9 mycroft #include <nfs/nfs.h> 65 1.9 mycroft #include <nfs/xdr_subs.h> 66 1.9 mycroft #include <nfs/nfsm_subs.h> 67 1.12 mycroft #include <nfs/nfsmount.h> 68 1.12 mycroft #include <nfs/nqnfs.h> 69 1.12 mycroft #include <nfs/nfsrtt.h> 70 1.24 christos #include <nfs/nfs_var.h> 71 1.12 mycroft 72 1.12 mycroft #include <miscfs/specfs/specdev.h> 73 1.12 mycroft 74 1.24 christos #include <vm/vm.h> 75 1.24 christos 76 1.12 mycroft #include <netinet/in.h> 77 1.12 mycroft #ifdef ISO 78 1.12 mycroft #include <netiso/iso.h> 79 1.12 mycroft #endif 80 1.1 cgd 81 1.1 cgd /* 82 1.1 cgd * Data items converted to xdr at startup, since they are constant 83 1.1 cgd * This is kinda hokey, but may save a little time doing byte swaps 84 1.1 cgd */ 85 1.22 cgd u_int32_t nfs_xdrneg1; 86 1.22 cgd u_int32_t rpc_call, rpc_vers, rpc_reply, rpc_msgdenied, rpc_autherr, 87 1.25 fvdl rpc_mismatch, rpc_auth_unix, rpc_msgaccepted, 88 1.12 mycroft rpc_auth_kerb; 89 1.25 fvdl u_int32_t nfs_prog, nqnfs_prog, nfs_true, nfs_false; 90 1.12 mycroft 91 1.1 cgd /* And other global data */ 92 1.22 cgd static u_int32_t nfs_xid = 0; 93 1.25 fvdl nfstype nfsv2_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK, NFNON, 94 1.25 fvdl NFCHR, NFNON }; 95 1.25 fvdl nfstype nfsv3_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK, NFSOCK, 96 1.25 fvdl NFFIFO, NFNON }; 97 1.25 fvdl enum vtype nv2tov_type[8] = { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON }; 98 1.25 fvdl enum vtype nv3tov_type[8]={ VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO }; 99 1.25 fvdl int nfs_ticks; 100 1.25 fvdl 101 1.25 fvdl /* 102 1.25 fvdl * Mapping of old NFS Version 2 RPC numbers to generic numbers. 103 1.25 fvdl */ 104 1.25 fvdl int nfsv3_procid[NFS_NPROCS] = { 105 1.25 fvdl NFSPROC_NULL, 106 1.25 fvdl NFSPROC_GETATTR, 107 1.25 fvdl NFSPROC_SETATTR, 108 1.25 fvdl NFSPROC_NOOP, 109 1.25 fvdl NFSPROC_LOOKUP, 110 1.25 fvdl NFSPROC_READLINK, 111 1.25 fvdl NFSPROC_READ, 112 1.25 fvdl NFSPROC_NOOP, 113 1.25 fvdl NFSPROC_WRITE, 114 1.25 fvdl NFSPROC_CREATE, 115 1.25 fvdl NFSPROC_REMOVE, 116 1.25 fvdl NFSPROC_RENAME, 117 1.25 fvdl NFSPROC_LINK, 118 1.25 fvdl NFSPROC_SYMLINK, 119 1.25 fvdl NFSPROC_MKDIR, 120 1.25 fvdl NFSPROC_RMDIR, 121 1.25 fvdl NFSPROC_READDIR, 122 1.25 fvdl NFSPROC_FSSTAT, 123 1.25 fvdl NFSPROC_NOOP, 124 1.25 fvdl NFSPROC_NOOP, 125 1.25 fvdl NFSPROC_NOOP, 126 1.25 fvdl NFSPROC_NOOP, 127 1.25 fvdl NFSPROC_NOOP, 128 1.25 fvdl NFSPROC_NOOP, 129 1.25 fvdl NFSPROC_NOOP, 130 1.25 fvdl NFSPROC_NOOP 131 1.25 fvdl }; 132 1.25 fvdl 133 1.25 fvdl /* 134 1.25 fvdl * and the reverse mapping from generic to Version 2 procedure numbers 135 1.25 fvdl */ 136 1.25 fvdl int nfsv2_procid[NFS_NPROCS] = { 137 1.25 fvdl NFSV2PROC_NULL, 138 1.25 fvdl NFSV2PROC_GETATTR, 139 1.25 fvdl NFSV2PROC_SETATTR, 140 1.25 fvdl NFSV2PROC_LOOKUP, 141 1.25 fvdl NFSV2PROC_NOOP, 142 1.25 fvdl NFSV2PROC_READLINK, 143 1.25 fvdl NFSV2PROC_READ, 144 1.25 fvdl NFSV2PROC_WRITE, 145 1.25 fvdl NFSV2PROC_CREATE, 146 1.25 fvdl NFSV2PROC_MKDIR, 147 1.25 fvdl NFSV2PROC_SYMLINK, 148 1.25 fvdl NFSV2PROC_CREATE, 149 1.25 fvdl NFSV2PROC_REMOVE, 150 1.25 fvdl NFSV2PROC_RMDIR, 151 1.25 fvdl NFSV2PROC_RENAME, 152 1.25 fvdl NFSV2PROC_LINK, 153 1.25 fvdl NFSV2PROC_READDIR, 154 1.25 fvdl NFSV2PROC_NOOP, 155 1.25 fvdl NFSV2PROC_STATFS, 156 1.25 fvdl NFSV2PROC_NOOP, 157 1.25 fvdl NFSV2PROC_NOOP, 158 1.25 fvdl NFSV2PROC_NOOP, 159 1.25 fvdl NFSV2PROC_NOOP, 160 1.25 fvdl NFSV2PROC_NOOP, 161 1.25 fvdl NFSV2PROC_NOOP, 162 1.25 fvdl NFSV2PROC_NOOP, 163 1.25 fvdl }; 164 1.25 fvdl 165 1.25 fvdl /* 166 1.25 fvdl * Maps errno values to nfs error numbers. 167 1.25 fvdl * Use NFSERR_IO as the catch all for ones not specifically defined in 168 1.25 fvdl * RFC 1094. 169 1.25 fvdl */ 170 1.25 fvdl static u_char nfsrv_v2errmap[ELAST] = { 171 1.25 fvdl NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO, 172 1.25 fvdl NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 173 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO, 174 1.25 fvdl NFSERR_IO, NFSERR_EXIST, NFSERR_IO, NFSERR_NODEV, NFSERR_NOTDIR, 175 1.25 fvdl NFSERR_ISDIR, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 176 1.25 fvdl NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS, 177 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 178 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 179 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 180 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 181 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 182 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 183 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO, 184 1.25 fvdl NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE, 185 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 186 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 187 1.25 fvdl NFSERR_IO, 188 1.25 fvdl }; 189 1.25 fvdl 190 1.25 fvdl /* 191 1.25 fvdl * Maps errno values to nfs error numbers. 192 1.25 fvdl * Although it is not obvious whether or not NFS clients really care if 193 1.25 fvdl * a returned error value is in the specified list for the procedure, the 194 1.25 fvdl * safest thing to do is filter them appropriately. For Version 2, the 195 1.25 fvdl * X/Open XNFS document is the only specification that defines error values 196 1.25 fvdl * for each RPC (The RFC simply lists all possible error values for all RPCs), 197 1.25 fvdl * so I have decided to not do this for Version 2. 198 1.25 fvdl * The first entry is the default error return and the rest are the valid 199 1.25 fvdl * errors for that RPC in increasing numeric order. 200 1.25 fvdl */ 201 1.25 fvdl static short nfsv3err_null[] = { 202 1.25 fvdl 0, 203 1.25 fvdl 0, 204 1.25 fvdl }; 205 1.25 fvdl 206 1.25 fvdl static short nfsv3err_getattr[] = { 207 1.25 fvdl NFSERR_IO, 208 1.25 fvdl NFSERR_IO, 209 1.25 fvdl NFSERR_STALE, 210 1.25 fvdl NFSERR_BADHANDLE, 211 1.25 fvdl NFSERR_SERVERFAULT, 212 1.25 fvdl 0, 213 1.25 fvdl }; 214 1.25 fvdl 215 1.25 fvdl static short nfsv3err_setattr[] = { 216 1.25 fvdl NFSERR_IO, 217 1.25 fvdl NFSERR_PERM, 218 1.25 fvdl NFSERR_IO, 219 1.25 fvdl NFSERR_ACCES, 220 1.25 fvdl NFSERR_INVAL, 221 1.25 fvdl NFSERR_NOSPC, 222 1.25 fvdl NFSERR_ROFS, 223 1.25 fvdl NFSERR_DQUOT, 224 1.25 fvdl NFSERR_STALE, 225 1.25 fvdl NFSERR_BADHANDLE, 226 1.25 fvdl NFSERR_NOT_SYNC, 227 1.25 fvdl NFSERR_SERVERFAULT, 228 1.25 fvdl 0, 229 1.25 fvdl }; 230 1.25 fvdl 231 1.25 fvdl static short nfsv3err_lookup[] = { 232 1.25 fvdl NFSERR_IO, 233 1.25 fvdl NFSERR_NOENT, 234 1.25 fvdl NFSERR_IO, 235 1.25 fvdl NFSERR_ACCES, 236 1.25 fvdl NFSERR_NOTDIR, 237 1.25 fvdl NFSERR_NAMETOL, 238 1.25 fvdl NFSERR_STALE, 239 1.25 fvdl NFSERR_BADHANDLE, 240 1.25 fvdl NFSERR_SERVERFAULT, 241 1.25 fvdl 0, 242 1.25 fvdl }; 243 1.25 fvdl 244 1.25 fvdl static short nfsv3err_access[] = { 245 1.25 fvdl NFSERR_IO, 246 1.25 fvdl NFSERR_IO, 247 1.25 fvdl NFSERR_STALE, 248 1.25 fvdl NFSERR_BADHANDLE, 249 1.25 fvdl NFSERR_SERVERFAULT, 250 1.25 fvdl 0, 251 1.25 fvdl }; 252 1.25 fvdl 253 1.25 fvdl static short nfsv3err_readlink[] = { 254 1.25 fvdl NFSERR_IO, 255 1.25 fvdl NFSERR_IO, 256 1.25 fvdl NFSERR_ACCES, 257 1.25 fvdl NFSERR_INVAL, 258 1.25 fvdl NFSERR_STALE, 259 1.25 fvdl NFSERR_BADHANDLE, 260 1.25 fvdl NFSERR_NOTSUPP, 261 1.25 fvdl NFSERR_SERVERFAULT, 262 1.25 fvdl 0, 263 1.25 fvdl }; 264 1.25 fvdl 265 1.25 fvdl static short nfsv3err_read[] = { 266 1.25 fvdl NFSERR_IO, 267 1.25 fvdl NFSERR_IO, 268 1.25 fvdl NFSERR_NXIO, 269 1.25 fvdl NFSERR_ACCES, 270 1.25 fvdl NFSERR_INVAL, 271 1.25 fvdl NFSERR_STALE, 272 1.25 fvdl NFSERR_BADHANDLE, 273 1.25 fvdl NFSERR_SERVERFAULT, 274 1.25 fvdl 0, 275 1.25 fvdl }; 276 1.25 fvdl 277 1.25 fvdl static short nfsv3err_write[] = { 278 1.25 fvdl NFSERR_IO, 279 1.25 fvdl NFSERR_IO, 280 1.25 fvdl NFSERR_ACCES, 281 1.25 fvdl NFSERR_INVAL, 282 1.25 fvdl NFSERR_FBIG, 283 1.25 fvdl NFSERR_NOSPC, 284 1.25 fvdl NFSERR_ROFS, 285 1.25 fvdl NFSERR_DQUOT, 286 1.25 fvdl NFSERR_STALE, 287 1.25 fvdl NFSERR_BADHANDLE, 288 1.25 fvdl NFSERR_SERVERFAULT, 289 1.25 fvdl 0, 290 1.25 fvdl }; 291 1.25 fvdl 292 1.25 fvdl static short nfsv3err_create[] = { 293 1.25 fvdl NFSERR_IO, 294 1.25 fvdl NFSERR_IO, 295 1.25 fvdl NFSERR_ACCES, 296 1.25 fvdl NFSERR_EXIST, 297 1.25 fvdl NFSERR_NOTDIR, 298 1.25 fvdl NFSERR_NOSPC, 299 1.25 fvdl NFSERR_ROFS, 300 1.25 fvdl NFSERR_NAMETOL, 301 1.25 fvdl NFSERR_DQUOT, 302 1.25 fvdl NFSERR_STALE, 303 1.25 fvdl NFSERR_BADHANDLE, 304 1.25 fvdl NFSERR_NOTSUPP, 305 1.25 fvdl NFSERR_SERVERFAULT, 306 1.25 fvdl 0, 307 1.25 fvdl }; 308 1.25 fvdl 309 1.25 fvdl static short nfsv3err_mkdir[] = { 310 1.25 fvdl NFSERR_IO, 311 1.25 fvdl NFSERR_IO, 312 1.25 fvdl NFSERR_ACCES, 313 1.25 fvdl NFSERR_EXIST, 314 1.25 fvdl NFSERR_NOTDIR, 315 1.25 fvdl NFSERR_NOSPC, 316 1.25 fvdl NFSERR_ROFS, 317 1.25 fvdl NFSERR_NAMETOL, 318 1.25 fvdl NFSERR_DQUOT, 319 1.25 fvdl NFSERR_STALE, 320 1.25 fvdl NFSERR_BADHANDLE, 321 1.25 fvdl NFSERR_NOTSUPP, 322 1.25 fvdl NFSERR_SERVERFAULT, 323 1.25 fvdl 0, 324 1.25 fvdl }; 325 1.25 fvdl 326 1.25 fvdl static short nfsv3err_symlink[] = { 327 1.25 fvdl NFSERR_IO, 328 1.25 fvdl NFSERR_IO, 329 1.25 fvdl NFSERR_ACCES, 330 1.25 fvdl NFSERR_EXIST, 331 1.25 fvdl NFSERR_NOTDIR, 332 1.25 fvdl NFSERR_NOSPC, 333 1.25 fvdl NFSERR_ROFS, 334 1.25 fvdl NFSERR_NAMETOL, 335 1.25 fvdl NFSERR_DQUOT, 336 1.25 fvdl NFSERR_STALE, 337 1.25 fvdl NFSERR_BADHANDLE, 338 1.25 fvdl NFSERR_NOTSUPP, 339 1.25 fvdl NFSERR_SERVERFAULT, 340 1.25 fvdl 0, 341 1.25 fvdl }; 342 1.25 fvdl 343 1.25 fvdl static short nfsv3err_mknod[] = { 344 1.25 fvdl NFSERR_IO, 345 1.25 fvdl NFSERR_IO, 346 1.25 fvdl NFSERR_ACCES, 347 1.25 fvdl NFSERR_EXIST, 348 1.25 fvdl NFSERR_NOTDIR, 349 1.25 fvdl NFSERR_NOSPC, 350 1.25 fvdl NFSERR_ROFS, 351 1.25 fvdl NFSERR_NAMETOL, 352 1.25 fvdl NFSERR_DQUOT, 353 1.25 fvdl NFSERR_STALE, 354 1.25 fvdl NFSERR_BADHANDLE, 355 1.25 fvdl NFSERR_NOTSUPP, 356 1.25 fvdl NFSERR_SERVERFAULT, 357 1.25 fvdl NFSERR_BADTYPE, 358 1.25 fvdl 0, 359 1.25 fvdl }; 360 1.25 fvdl 361 1.25 fvdl static short nfsv3err_remove[] = { 362 1.25 fvdl NFSERR_IO, 363 1.25 fvdl NFSERR_NOENT, 364 1.25 fvdl NFSERR_IO, 365 1.25 fvdl NFSERR_ACCES, 366 1.25 fvdl NFSERR_NOTDIR, 367 1.25 fvdl NFSERR_ROFS, 368 1.25 fvdl NFSERR_NAMETOL, 369 1.25 fvdl NFSERR_STALE, 370 1.25 fvdl NFSERR_BADHANDLE, 371 1.25 fvdl NFSERR_SERVERFAULT, 372 1.25 fvdl 0, 373 1.25 fvdl }; 374 1.25 fvdl 375 1.25 fvdl static short nfsv3err_rmdir[] = { 376 1.25 fvdl NFSERR_IO, 377 1.25 fvdl NFSERR_NOENT, 378 1.25 fvdl NFSERR_IO, 379 1.25 fvdl NFSERR_ACCES, 380 1.25 fvdl NFSERR_EXIST, 381 1.25 fvdl NFSERR_NOTDIR, 382 1.25 fvdl NFSERR_INVAL, 383 1.25 fvdl NFSERR_ROFS, 384 1.25 fvdl NFSERR_NAMETOL, 385 1.25 fvdl NFSERR_NOTEMPTY, 386 1.25 fvdl NFSERR_STALE, 387 1.25 fvdl NFSERR_BADHANDLE, 388 1.25 fvdl NFSERR_NOTSUPP, 389 1.25 fvdl NFSERR_SERVERFAULT, 390 1.25 fvdl 0, 391 1.25 fvdl }; 392 1.25 fvdl 393 1.25 fvdl static short nfsv3err_rename[] = { 394 1.25 fvdl NFSERR_IO, 395 1.25 fvdl NFSERR_NOENT, 396 1.25 fvdl NFSERR_IO, 397 1.25 fvdl NFSERR_ACCES, 398 1.25 fvdl NFSERR_EXIST, 399 1.25 fvdl NFSERR_XDEV, 400 1.25 fvdl NFSERR_NOTDIR, 401 1.25 fvdl NFSERR_ISDIR, 402 1.25 fvdl NFSERR_INVAL, 403 1.25 fvdl NFSERR_NOSPC, 404 1.25 fvdl NFSERR_ROFS, 405 1.25 fvdl NFSERR_MLINK, 406 1.25 fvdl NFSERR_NAMETOL, 407 1.25 fvdl NFSERR_NOTEMPTY, 408 1.25 fvdl NFSERR_DQUOT, 409 1.25 fvdl NFSERR_STALE, 410 1.25 fvdl NFSERR_BADHANDLE, 411 1.25 fvdl NFSERR_NOTSUPP, 412 1.25 fvdl NFSERR_SERVERFAULT, 413 1.25 fvdl 0, 414 1.25 fvdl }; 415 1.25 fvdl 416 1.25 fvdl static short nfsv3err_link[] = { 417 1.25 fvdl NFSERR_IO, 418 1.25 fvdl NFSERR_IO, 419 1.25 fvdl NFSERR_ACCES, 420 1.25 fvdl NFSERR_EXIST, 421 1.25 fvdl NFSERR_XDEV, 422 1.25 fvdl NFSERR_NOTDIR, 423 1.25 fvdl NFSERR_INVAL, 424 1.25 fvdl NFSERR_NOSPC, 425 1.25 fvdl NFSERR_ROFS, 426 1.25 fvdl NFSERR_MLINK, 427 1.25 fvdl NFSERR_NAMETOL, 428 1.25 fvdl NFSERR_DQUOT, 429 1.25 fvdl NFSERR_STALE, 430 1.25 fvdl NFSERR_BADHANDLE, 431 1.25 fvdl NFSERR_NOTSUPP, 432 1.25 fvdl NFSERR_SERVERFAULT, 433 1.25 fvdl 0, 434 1.25 fvdl }; 435 1.25 fvdl 436 1.25 fvdl static short nfsv3err_readdir[] = { 437 1.25 fvdl NFSERR_IO, 438 1.25 fvdl NFSERR_IO, 439 1.25 fvdl NFSERR_ACCES, 440 1.25 fvdl NFSERR_NOTDIR, 441 1.25 fvdl NFSERR_STALE, 442 1.25 fvdl NFSERR_BADHANDLE, 443 1.25 fvdl NFSERR_BAD_COOKIE, 444 1.25 fvdl NFSERR_TOOSMALL, 445 1.25 fvdl NFSERR_SERVERFAULT, 446 1.25 fvdl 0, 447 1.25 fvdl }; 448 1.25 fvdl 449 1.25 fvdl static short nfsv3err_readdirplus[] = { 450 1.25 fvdl NFSERR_IO, 451 1.25 fvdl NFSERR_IO, 452 1.25 fvdl NFSERR_ACCES, 453 1.25 fvdl NFSERR_NOTDIR, 454 1.25 fvdl NFSERR_STALE, 455 1.25 fvdl NFSERR_BADHANDLE, 456 1.25 fvdl NFSERR_BAD_COOKIE, 457 1.25 fvdl NFSERR_NOTSUPP, 458 1.25 fvdl NFSERR_TOOSMALL, 459 1.25 fvdl NFSERR_SERVERFAULT, 460 1.25 fvdl 0, 461 1.25 fvdl }; 462 1.25 fvdl 463 1.25 fvdl static short nfsv3err_fsstat[] = { 464 1.25 fvdl NFSERR_IO, 465 1.25 fvdl NFSERR_IO, 466 1.25 fvdl NFSERR_STALE, 467 1.25 fvdl NFSERR_BADHANDLE, 468 1.25 fvdl NFSERR_SERVERFAULT, 469 1.25 fvdl 0, 470 1.25 fvdl }; 471 1.25 fvdl 472 1.25 fvdl static short nfsv3err_fsinfo[] = { 473 1.25 fvdl NFSERR_STALE, 474 1.25 fvdl NFSERR_STALE, 475 1.25 fvdl NFSERR_BADHANDLE, 476 1.25 fvdl NFSERR_SERVERFAULT, 477 1.25 fvdl 0, 478 1.25 fvdl }; 479 1.25 fvdl 480 1.25 fvdl static short nfsv3err_pathconf[] = { 481 1.25 fvdl NFSERR_STALE, 482 1.25 fvdl NFSERR_STALE, 483 1.25 fvdl NFSERR_BADHANDLE, 484 1.25 fvdl NFSERR_SERVERFAULT, 485 1.25 fvdl 0, 486 1.25 fvdl }; 487 1.25 fvdl 488 1.25 fvdl static short nfsv3err_commit[] = { 489 1.25 fvdl NFSERR_IO, 490 1.25 fvdl NFSERR_IO, 491 1.25 fvdl NFSERR_STALE, 492 1.25 fvdl NFSERR_BADHANDLE, 493 1.25 fvdl NFSERR_SERVERFAULT, 494 1.25 fvdl 0, 495 1.25 fvdl }; 496 1.25 fvdl 497 1.25 fvdl static short *nfsrv_v3errmap[] = { 498 1.25 fvdl nfsv3err_null, 499 1.25 fvdl nfsv3err_getattr, 500 1.25 fvdl nfsv3err_setattr, 501 1.25 fvdl nfsv3err_lookup, 502 1.25 fvdl nfsv3err_access, 503 1.25 fvdl nfsv3err_readlink, 504 1.25 fvdl nfsv3err_read, 505 1.25 fvdl nfsv3err_write, 506 1.25 fvdl nfsv3err_create, 507 1.25 fvdl nfsv3err_mkdir, 508 1.25 fvdl nfsv3err_symlink, 509 1.25 fvdl nfsv3err_mknod, 510 1.25 fvdl nfsv3err_remove, 511 1.25 fvdl nfsv3err_rmdir, 512 1.25 fvdl nfsv3err_rename, 513 1.25 fvdl nfsv3err_link, 514 1.25 fvdl nfsv3err_readdir, 515 1.25 fvdl nfsv3err_readdirplus, 516 1.25 fvdl nfsv3err_fsstat, 517 1.25 fvdl nfsv3err_fsinfo, 518 1.25 fvdl nfsv3err_pathconf, 519 1.25 fvdl nfsv3err_commit, 520 1.25 fvdl }; 521 1.25 fvdl 522 1.1 cgd extern struct proc *nfs_iodwant[NFS_MAXASYNCDAEMON]; 523 1.12 mycroft extern struct nfsrtt nfsrtt; 524 1.12 mycroft extern time_t nqnfsstarttime; 525 1.12 mycroft extern int nqsrv_clockskew; 526 1.12 mycroft extern int nqsrv_writeslack; 527 1.12 mycroft extern int nqsrv_maxlease; 528 1.25 fvdl extern struct nfsstats nfsstats; 529 1.25 fvdl extern int nqnfs_piggy[NFS_NPROCS]; 530 1.25 fvdl extern nfstype nfsv2_type[9]; 531 1.25 fvdl extern nfstype nfsv3_type[9]; 532 1.25 fvdl extern struct nfsnodehashhead *nfsnodehashtbl; 533 1.25 fvdl extern u_long nfsnodehash; 534 1.1 cgd 535 1.18 mycroft LIST_HEAD(nfsnodehashhead, nfsnode); 536 1.18 mycroft 537 1.1 cgd /* 538 1.1 cgd * Create the header for an rpc request packet 539 1.1 cgd * The hsiz is the size of the rest of the nfs request header. 540 1.1 cgd * (just used to decide if a cluster is a good idea) 541 1.1 cgd */ 542 1.12 mycroft struct mbuf * 543 1.12 mycroft nfsm_reqh(vp, procid, hsiz, bposp) 544 1.12 mycroft struct vnode *vp; 545 1.1 cgd u_long procid; 546 1.1 cgd int hsiz; 547 1.12 mycroft caddr_t *bposp; 548 1.12 mycroft { 549 1.12 mycroft register struct mbuf *mb; 550 1.22 cgd register u_int32_t *tl; 551 1.12 mycroft register caddr_t bpos; 552 1.12 mycroft struct mbuf *mb2; 553 1.12 mycroft struct nfsmount *nmp; 554 1.12 mycroft int nqflag; 555 1.12 mycroft 556 1.12 mycroft MGET(mb, M_WAIT, MT_DATA); 557 1.12 mycroft if (hsiz >= MINCLSIZE) 558 1.12 mycroft MCLGET(mb, M_WAIT); 559 1.12 mycroft mb->m_len = 0; 560 1.12 mycroft bpos = mtod(mb, caddr_t); 561 1.12 mycroft 562 1.12 mycroft /* 563 1.12 mycroft * For NQNFS, add lease request. 564 1.12 mycroft */ 565 1.12 mycroft if (vp) { 566 1.12 mycroft nmp = VFSTONFS(vp->v_mount); 567 1.12 mycroft if (nmp->nm_flag & NFSMNT_NQNFS) { 568 1.12 mycroft nqflag = NQNFS_NEEDLEASE(vp, procid); 569 1.12 mycroft if (nqflag) { 570 1.22 cgd nfsm_build(tl, u_int32_t *, 2*NFSX_UNSIGNED); 571 1.12 mycroft *tl++ = txdr_unsigned(nqflag); 572 1.12 mycroft *tl = txdr_unsigned(nmp->nm_leaseterm); 573 1.12 mycroft } else { 574 1.22 cgd nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 575 1.12 mycroft *tl = 0; 576 1.12 mycroft } 577 1.12 mycroft } 578 1.12 mycroft } 579 1.12 mycroft /* Finally, return values */ 580 1.12 mycroft *bposp = bpos; 581 1.12 mycroft return (mb); 582 1.12 mycroft } 583 1.12 mycroft 584 1.12 mycroft /* 585 1.12 mycroft * Build the RPC header and fill in the authorization info. 586 1.12 mycroft * The authorization string argument is only used when the credentials 587 1.12 mycroft * come from outside of the kernel. 588 1.12 mycroft * Returns the head of the mbuf list. 589 1.12 mycroft */ 590 1.12 mycroft struct mbuf * 591 1.25 fvdl nfsm_rpchead(cr, nmflag, procid, auth_type, auth_len, auth_str, verf_len, 592 1.25 fvdl verf_str, mrest, mrest_len, mbp, xidp) 593 1.12 mycroft register struct ucred *cr; 594 1.25 fvdl int nmflag; 595 1.12 mycroft int procid; 596 1.12 mycroft int auth_type; 597 1.12 mycroft int auth_len; 598 1.12 mycroft char *auth_str; 599 1.25 fvdl int verf_len; 600 1.25 fvdl char *verf_str; 601 1.12 mycroft struct mbuf *mrest; 602 1.12 mycroft int mrest_len; 603 1.12 mycroft struct mbuf **mbp; 604 1.22 cgd u_int32_t *xidp; 605 1.1 cgd { 606 1.12 mycroft register struct mbuf *mb; 607 1.22 cgd register u_int32_t *tl; 608 1.12 mycroft register caddr_t bpos; 609 1.12 mycroft register int i; 610 1.12 mycroft struct mbuf *mreq, *mb2; 611 1.12 mycroft int siz, grpsiz, authsiz; 612 1.1 cgd 613 1.12 mycroft authsiz = nfsm_rndup(auth_len); 614 1.12 mycroft MGETHDR(mb, M_WAIT, MT_DATA); 615 1.25 fvdl if ((authsiz + 10 * NFSX_UNSIGNED) >= MINCLSIZE) { 616 1.12 mycroft MCLGET(mb, M_WAIT); 617 1.25 fvdl } else if ((authsiz + 10 * NFSX_UNSIGNED) < MHLEN) { 618 1.25 fvdl MH_ALIGN(mb, authsiz + 10 * NFSX_UNSIGNED); 619 1.12 mycroft } else { 620 1.25 fvdl MH_ALIGN(mb, 8 * NFSX_UNSIGNED); 621 1.1 cgd } 622 1.12 mycroft mb->m_len = 0; 623 1.12 mycroft mreq = mb; 624 1.12 mycroft bpos = mtod(mb, caddr_t); 625 1.12 mycroft 626 1.12 mycroft /* 627 1.12 mycroft * First the RPC header. 628 1.12 mycroft */ 629 1.25 fvdl nfsm_build(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 630 1.12 mycroft if (++nfs_xid == 0) 631 1.12 mycroft nfs_xid++; 632 1.12 mycroft *tl++ = *xidp = txdr_unsigned(nfs_xid); 633 1.1 cgd *tl++ = rpc_call; 634 1.1 cgd *tl++ = rpc_vers; 635 1.25 fvdl if (nmflag & NFSMNT_NQNFS) { 636 1.12 mycroft *tl++ = txdr_unsigned(NQNFS_PROG); 637 1.25 fvdl *tl++ = txdr_unsigned(NQNFS_VER3); 638 1.1 cgd } else { 639 1.12 mycroft *tl++ = txdr_unsigned(NFS_PROG); 640 1.25 fvdl if (nmflag & NFSMNT_NFSV3) 641 1.25 fvdl *tl++ = txdr_unsigned(NFS_VER3); 642 1.25 fvdl else 643 1.25 fvdl *tl++ = txdr_unsigned(NFS_VER2); 644 1.1 cgd } 645 1.25 fvdl if (nmflag & NFSMNT_NFSV3) 646 1.25 fvdl *tl++ = txdr_unsigned(procid); 647 1.25 fvdl else 648 1.25 fvdl *tl++ = txdr_unsigned(nfsv2_procid[procid]); 649 1.12 mycroft 650 1.12 mycroft /* 651 1.12 mycroft * And then the authorization cred. 652 1.12 mycroft */ 653 1.12 mycroft *tl++ = txdr_unsigned(auth_type); 654 1.12 mycroft *tl = txdr_unsigned(authsiz); 655 1.12 mycroft switch (auth_type) { 656 1.12 mycroft case RPCAUTH_UNIX: 657 1.22 cgd nfsm_build(tl, u_int32_t *, auth_len); 658 1.12 mycroft *tl++ = 0; /* stamp ?? */ 659 1.12 mycroft *tl++ = 0; /* NULL hostname */ 660 1.12 mycroft *tl++ = txdr_unsigned(cr->cr_uid); 661 1.19 jtc *tl++ = txdr_unsigned(cr->cr_gid); 662 1.12 mycroft grpsiz = (auth_len >> 2) - 5; 663 1.12 mycroft *tl++ = txdr_unsigned(grpsiz); 664 1.20 mycroft for (i = 0; i < grpsiz; i++) 665 1.12 mycroft *tl++ = txdr_unsigned(cr->cr_groups[i]); 666 1.12 mycroft break; 667 1.25 fvdl case RPCAUTH_KERB4: 668 1.12 mycroft siz = auth_len; 669 1.12 mycroft while (siz > 0) { 670 1.12 mycroft if (M_TRAILINGSPACE(mb) == 0) { 671 1.12 mycroft MGET(mb2, M_WAIT, MT_DATA); 672 1.12 mycroft if (siz >= MINCLSIZE) 673 1.12 mycroft MCLGET(mb2, M_WAIT); 674 1.12 mycroft mb->m_next = mb2; 675 1.12 mycroft mb = mb2; 676 1.12 mycroft mb->m_len = 0; 677 1.12 mycroft bpos = mtod(mb, caddr_t); 678 1.12 mycroft } 679 1.12 mycroft i = min(siz, M_TRAILINGSPACE(mb)); 680 1.12 mycroft bcopy(auth_str, bpos, i); 681 1.12 mycroft mb->m_len += i; 682 1.12 mycroft auth_str += i; 683 1.12 mycroft bpos += i; 684 1.12 mycroft siz -= i; 685 1.12 mycroft } 686 1.12 mycroft if ((siz = (nfsm_rndup(auth_len) - auth_len)) > 0) { 687 1.12 mycroft for (i = 0; i < siz; i++) 688 1.12 mycroft *bpos++ = '\0'; 689 1.12 mycroft mb->m_len += siz; 690 1.12 mycroft } 691 1.12 mycroft break; 692 1.12 mycroft }; 693 1.25 fvdl 694 1.25 fvdl /* 695 1.25 fvdl * And the verifier... 696 1.25 fvdl */ 697 1.25 fvdl nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 698 1.25 fvdl if (verf_str) { 699 1.25 fvdl *tl++ = txdr_unsigned(RPCAUTH_KERB4); 700 1.25 fvdl *tl = txdr_unsigned(verf_len); 701 1.25 fvdl siz = verf_len; 702 1.25 fvdl while (siz > 0) { 703 1.25 fvdl if (M_TRAILINGSPACE(mb) == 0) { 704 1.25 fvdl MGET(mb2, M_WAIT, MT_DATA); 705 1.25 fvdl if (siz >= MINCLSIZE) 706 1.25 fvdl MCLGET(mb2, M_WAIT); 707 1.25 fvdl mb->m_next = mb2; 708 1.25 fvdl mb = mb2; 709 1.25 fvdl mb->m_len = 0; 710 1.25 fvdl bpos = mtod(mb, caddr_t); 711 1.25 fvdl } 712 1.25 fvdl i = min(siz, M_TRAILINGSPACE(mb)); 713 1.25 fvdl bcopy(verf_str, bpos, i); 714 1.25 fvdl mb->m_len += i; 715 1.25 fvdl verf_str += i; 716 1.25 fvdl bpos += i; 717 1.25 fvdl siz -= i; 718 1.25 fvdl } 719 1.25 fvdl if ((siz = (nfsm_rndup(verf_len) - verf_len)) > 0) { 720 1.25 fvdl for (i = 0; i < siz; i++) 721 1.25 fvdl *bpos++ = '\0'; 722 1.25 fvdl mb->m_len += siz; 723 1.25 fvdl } 724 1.25 fvdl } else { 725 1.25 fvdl *tl++ = txdr_unsigned(RPCAUTH_NULL); 726 1.25 fvdl *tl = 0; 727 1.25 fvdl } 728 1.12 mycroft mb->m_next = mrest; 729 1.25 fvdl mreq->m_pkthdr.len = authsiz + 10 * NFSX_UNSIGNED + mrest_len; 730 1.12 mycroft mreq->m_pkthdr.rcvif = (struct ifnet *)0; 731 1.12 mycroft *mbp = mb; 732 1.1 cgd return (mreq); 733 1.1 cgd } 734 1.1 cgd 735 1.1 cgd /* 736 1.1 cgd * copies mbuf chain to the uio scatter/gather list 737 1.1 cgd */ 738 1.24 christos int 739 1.1 cgd nfsm_mbuftouio(mrep, uiop, siz, dpos) 740 1.1 cgd struct mbuf **mrep; 741 1.1 cgd register struct uio *uiop; 742 1.1 cgd int siz; 743 1.1 cgd caddr_t *dpos; 744 1.1 cgd { 745 1.1 cgd register char *mbufcp, *uiocp; 746 1.1 cgd register int xfer, left, len; 747 1.1 cgd register struct mbuf *mp; 748 1.1 cgd long uiosiz, rem; 749 1.1 cgd int error = 0; 750 1.1 cgd 751 1.1 cgd mp = *mrep; 752 1.1 cgd mbufcp = *dpos; 753 1.1 cgd len = mtod(mp, caddr_t)+mp->m_len-mbufcp; 754 1.1 cgd rem = nfsm_rndup(siz)-siz; 755 1.1 cgd while (siz > 0) { 756 1.1 cgd if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) 757 1.1 cgd return (EFBIG); 758 1.1 cgd left = uiop->uio_iov->iov_len; 759 1.1 cgd uiocp = uiop->uio_iov->iov_base; 760 1.1 cgd if (left > siz) 761 1.1 cgd left = siz; 762 1.1 cgd uiosiz = left; 763 1.1 cgd while (left > 0) { 764 1.1 cgd while (len == 0) { 765 1.1 cgd mp = mp->m_next; 766 1.1 cgd if (mp == NULL) 767 1.1 cgd return (EBADRPC); 768 1.1 cgd mbufcp = mtod(mp, caddr_t); 769 1.1 cgd len = mp->m_len; 770 1.1 cgd } 771 1.1 cgd xfer = (left > len) ? len : left; 772 1.1 cgd #ifdef notdef 773 1.1 cgd /* Not Yet.. */ 774 1.1 cgd if (uiop->uio_iov->iov_op != NULL) 775 1.1 cgd (*(uiop->uio_iov->iov_op)) 776 1.1 cgd (mbufcp, uiocp, xfer); 777 1.1 cgd else 778 1.1 cgd #endif 779 1.1 cgd if (uiop->uio_segflg == UIO_SYSSPACE) 780 1.1 cgd bcopy(mbufcp, uiocp, xfer); 781 1.1 cgd else 782 1.1 cgd copyout(mbufcp, uiocp, xfer); 783 1.1 cgd left -= xfer; 784 1.1 cgd len -= xfer; 785 1.1 cgd mbufcp += xfer; 786 1.1 cgd uiocp += xfer; 787 1.1 cgd uiop->uio_offset += xfer; 788 1.1 cgd uiop->uio_resid -= xfer; 789 1.1 cgd } 790 1.1 cgd if (uiop->uio_iov->iov_len <= siz) { 791 1.1 cgd uiop->uio_iovcnt--; 792 1.1 cgd uiop->uio_iov++; 793 1.1 cgd } else { 794 1.1 cgd uiop->uio_iov->iov_base += uiosiz; 795 1.1 cgd uiop->uio_iov->iov_len -= uiosiz; 796 1.1 cgd } 797 1.1 cgd siz -= uiosiz; 798 1.1 cgd } 799 1.1 cgd *dpos = mbufcp; 800 1.1 cgd *mrep = mp; 801 1.1 cgd if (rem > 0) { 802 1.1 cgd if (len < rem) 803 1.1 cgd error = nfs_adv(mrep, dpos, rem, len); 804 1.1 cgd else 805 1.1 cgd *dpos += rem; 806 1.1 cgd } 807 1.1 cgd return (error); 808 1.1 cgd } 809 1.1 cgd 810 1.1 cgd /* 811 1.1 cgd * copies a uio scatter/gather list to an mbuf chain... 812 1.1 cgd */ 813 1.24 christos int 814 1.1 cgd nfsm_uiotombuf(uiop, mq, siz, bpos) 815 1.1 cgd register struct uio *uiop; 816 1.1 cgd struct mbuf **mq; 817 1.1 cgd int siz; 818 1.1 cgd caddr_t *bpos; 819 1.1 cgd { 820 1.1 cgd register char *uiocp; 821 1.1 cgd register struct mbuf *mp, *mp2; 822 1.12 mycroft register int xfer, left, mlen; 823 1.1 cgd int uiosiz, clflg, rem; 824 1.1 cgd char *cp; 825 1.1 cgd 826 1.1 cgd if (siz > MLEN) /* or should it >= MCLBYTES ?? */ 827 1.1 cgd clflg = 1; 828 1.1 cgd else 829 1.1 cgd clflg = 0; 830 1.1 cgd rem = nfsm_rndup(siz)-siz; 831 1.12 mycroft mp = mp2 = *mq; 832 1.1 cgd while (siz > 0) { 833 1.1 cgd if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) 834 1.1 cgd return (EINVAL); 835 1.1 cgd left = uiop->uio_iov->iov_len; 836 1.1 cgd uiocp = uiop->uio_iov->iov_base; 837 1.1 cgd if (left > siz) 838 1.1 cgd left = siz; 839 1.1 cgd uiosiz = left; 840 1.1 cgd while (left > 0) { 841 1.12 mycroft mlen = M_TRAILINGSPACE(mp); 842 1.12 mycroft if (mlen == 0) { 843 1.12 mycroft MGET(mp, M_WAIT, MT_DATA); 844 1.12 mycroft if (clflg) 845 1.12 mycroft MCLGET(mp, M_WAIT); 846 1.12 mycroft mp->m_len = 0; 847 1.12 mycroft mp2->m_next = mp; 848 1.12 mycroft mp2 = mp; 849 1.12 mycroft mlen = M_TRAILINGSPACE(mp); 850 1.12 mycroft } 851 1.12 mycroft xfer = (left > mlen) ? mlen : left; 852 1.1 cgd #ifdef notdef 853 1.1 cgd /* Not Yet.. */ 854 1.1 cgd if (uiop->uio_iov->iov_op != NULL) 855 1.1 cgd (*(uiop->uio_iov->iov_op)) 856 1.12 mycroft (uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 857 1.1 cgd else 858 1.1 cgd #endif 859 1.1 cgd if (uiop->uio_segflg == UIO_SYSSPACE) 860 1.12 mycroft bcopy(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 861 1.1 cgd else 862 1.12 mycroft copyin(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 863 1.12 mycroft mp->m_len += xfer; 864 1.1 cgd left -= xfer; 865 1.1 cgd uiocp += xfer; 866 1.1 cgd uiop->uio_offset += xfer; 867 1.1 cgd uiop->uio_resid -= xfer; 868 1.1 cgd } 869 1.1 cgd if (uiop->uio_iov->iov_len <= siz) { 870 1.1 cgd uiop->uio_iovcnt--; 871 1.1 cgd uiop->uio_iov++; 872 1.1 cgd } else { 873 1.1 cgd uiop->uio_iov->iov_base += uiosiz; 874 1.1 cgd uiop->uio_iov->iov_len -= uiosiz; 875 1.1 cgd } 876 1.1 cgd siz -= uiosiz; 877 1.1 cgd } 878 1.1 cgd if (rem > 0) { 879 1.12 mycroft if (rem > M_TRAILINGSPACE(mp)) { 880 1.1 cgd MGET(mp, M_WAIT, MT_DATA); 881 1.1 cgd mp->m_len = 0; 882 1.1 cgd mp2->m_next = mp; 883 1.1 cgd } 884 1.1 cgd cp = mtod(mp, caddr_t)+mp->m_len; 885 1.1 cgd for (left = 0; left < rem; left++) 886 1.1 cgd *cp++ = '\0'; 887 1.1 cgd mp->m_len += rem; 888 1.1 cgd *bpos = cp; 889 1.1 cgd } else 890 1.1 cgd *bpos = mtod(mp, caddr_t)+mp->m_len; 891 1.1 cgd *mq = mp; 892 1.1 cgd return (0); 893 1.1 cgd } 894 1.1 cgd 895 1.1 cgd /* 896 1.1 cgd * Help break down an mbuf chain by setting the first siz bytes contiguous 897 1.1 cgd * pointed to by returned val. 898 1.12 mycroft * This is used by the macros nfsm_dissect and nfsm_dissecton for tough 899 1.1 cgd * cases. (The macros use the vars. dpos and dpos2) 900 1.1 cgd */ 901 1.24 christos int 902 1.12 mycroft nfsm_disct(mdp, dposp, siz, left, cp2) 903 1.1 cgd struct mbuf **mdp; 904 1.1 cgd caddr_t *dposp; 905 1.1 cgd int siz; 906 1.1 cgd int left; 907 1.1 cgd caddr_t *cp2; 908 1.1 cgd { 909 1.1 cgd register struct mbuf *mp, *mp2; 910 1.1 cgd register int siz2, xfer; 911 1.12 mycroft register caddr_t p; 912 1.1 cgd 913 1.1 cgd mp = *mdp; 914 1.1 cgd while (left == 0) { 915 1.1 cgd *mdp = mp = mp->m_next; 916 1.1 cgd if (mp == NULL) 917 1.1 cgd return (EBADRPC); 918 1.1 cgd left = mp->m_len; 919 1.1 cgd *dposp = mtod(mp, caddr_t); 920 1.1 cgd } 921 1.1 cgd if (left >= siz) { 922 1.1 cgd *cp2 = *dposp; 923 1.1 cgd *dposp += siz; 924 1.1 cgd } else if (mp->m_next == NULL) { 925 1.1 cgd return (EBADRPC); 926 1.1 cgd } else if (siz > MHLEN) { 927 1.1 cgd panic("nfs S too big"); 928 1.1 cgd } else { 929 1.12 mycroft MGET(mp2, M_WAIT, MT_DATA); 930 1.12 mycroft mp2->m_next = mp->m_next; 931 1.12 mycroft mp->m_next = mp2; 932 1.12 mycroft mp->m_len -= left; 933 1.12 mycroft mp = mp2; 934 1.12 mycroft *cp2 = p = mtod(mp, caddr_t); 935 1.12 mycroft bcopy(*dposp, p, left); /* Copy what was left */ 936 1.1 cgd siz2 = siz-left; 937 1.12 mycroft p += left; 938 1.1 cgd mp2 = mp->m_next; 939 1.1 cgd /* Loop around copying up the siz2 bytes */ 940 1.1 cgd while (siz2 > 0) { 941 1.1 cgd if (mp2 == NULL) 942 1.1 cgd return (EBADRPC); 943 1.1 cgd xfer = (siz2 > mp2->m_len) ? mp2->m_len : siz2; 944 1.1 cgd if (xfer > 0) { 945 1.12 mycroft bcopy(mtod(mp2, caddr_t), p, xfer); 946 1.1 cgd NFSMADV(mp2, xfer); 947 1.1 cgd mp2->m_len -= xfer; 948 1.12 mycroft p += xfer; 949 1.1 cgd siz2 -= xfer; 950 1.1 cgd } 951 1.1 cgd if (siz2 > 0) 952 1.1 cgd mp2 = mp2->m_next; 953 1.1 cgd } 954 1.1 cgd mp->m_len = siz; 955 1.1 cgd *mdp = mp2; 956 1.1 cgd *dposp = mtod(mp2, caddr_t); 957 1.1 cgd } 958 1.1 cgd return (0); 959 1.1 cgd } 960 1.1 cgd 961 1.1 cgd /* 962 1.1 cgd * Advance the position in the mbuf chain. 963 1.1 cgd */ 964 1.24 christos int 965 1.1 cgd nfs_adv(mdp, dposp, offs, left) 966 1.1 cgd struct mbuf **mdp; 967 1.1 cgd caddr_t *dposp; 968 1.1 cgd int offs; 969 1.1 cgd int left; 970 1.1 cgd { 971 1.1 cgd register struct mbuf *m; 972 1.1 cgd register int s; 973 1.1 cgd 974 1.1 cgd m = *mdp; 975 1.1 cgd s = left; 976 1.1 cgd while (s < offs) { 977 1.1 cgd offs -= s; 978 1.1 cgd m = m->m_next; 979 1.1 cgd if (m == NULL) 980 1.1 cgd return (EBADRPC); 981 1.1 cgd s = m->m_len; 982 1.1 cgd } 983 1.1 cgd *mdp = m; 984 1.1 cgd *dposp = mtod(m, caddr_t)+offs; 985 1.1 cgd return (0); 986 1.1 cgd } 987 1.1 cgd 988 1.1 cgd /* 989 1.1 cgd * Copy a string into mbufs for the hard cases... 990 1.1 cgd */ 991 1.24 christos int 992 1.1 cgd nfsm_strtmbuf(mb, bpos, cp, siz) 993 1.1 cgd struct mbuf **mb; 994 1.1 cgd char **bpos; 995 1.1 cgd char *cp; 996 1.1 cgd long siz; 997 1.1 cgd { 998 1.24 christos register struct mbuf *m1 = NULL, *m2; 999 1.1 cgd long left, xfer, len, tlen; 1000 1.22 cgd u_int32_t *tl; 1001 1.1 cgd int putsize; 1002 1.1 cgd 1003 1.1 cgd putsize = 1; 1004 1.1 cgd m2 = *mb; 1005 1.12 mycroft left = M_TRAILINGSPACE(m2); 1006 1.1 cgd if (left > 0) { 1007 1.22 cgd tl = ((u_int32_t *)(*bpos)); 1008 1.1 cgd *tl++ = txdr_unsigned(siz); 1009 1.1 cgd putsize = 0; 1010 1.1 cgd left -= NFSX_UNSIGNED; 1011 1.1 cgd m2->m_len += NFSX_UNSIGNED; 1012 1.1 cgd if (left > 0) { 1013 1.1 cgd bcopy(cp, (caddr_t) tl, left); 1014 1.1 cgd siz -= left; 1015 1.1 cgd cp += left; 1016 1.1 cgd m2->m_len += left; 1017 1.1 cgd left = 0; 1018 1.1 cgd } 1019 1.1 cgd } 1020 1.12 mycroft /* Loop around adding mbufs */ 1021 1.1 cgd while (siz > 0) { 1022 1.1 cgd MGET(m1, M_WAIT, MT_DATA); 1023 1.1 cgd if (siz > MLEN) 1024 1.1 cgd MCLGET(m1, M_WAIT); 1025 1.1 cgd m1->m_len = NFSMSIZ(m1); 1026 1.1 cgd m2->m_next = m1; 1027 1.1 cgd m2 = m1; 1028 1.22 cgd tl = mtod(m1, u_int32_t *); 1029 1.1 cgd tlen = 0; 1030 1.1 cgd if (putsize) { 1031 1.1 cgd *tl++ = txdr_unsigned(siz); 1032 1.1 cgd m1->m_len -= NFSX_UNSIGNED; 1033 1.1 cgd tlen = NFSX_UNSIGNED; 1034 1.1 cgd putsize = 0; 1035 1.1 cgd } 1036 1.1 cgd if (siz < m1->m_len) { 1037 1.1 cgd len = nfsm_rndup(siz); 1038 1.1 cgd xfer = siz; 1039 1.1 cgd if (xfer < len) 1040 1.1 cgd *(tl+(xfer>>2)) = 0; 1041 1.1 cgd } else { 1042 1.1 cgd xfer = len = m1->m_len; 1043 1.1 cgd } 1044 1.1 cgd bcopy(cp, (caddr_t) tl, xfer); 1045 1.1 cgd m1->m_len = len+tlen; 1046 1.1 cgd siz -= xfer; 1047 1.1 cgd cp += xfer; 1048 1.1 cgd } 1049 1.1 cgd *mb = m1; 1050 1.1 cgd *bpos = mtod(m1, caddr_t)+m1->m_len; 1051 1.1 cgd return (0); 1052 1.1 cgd } 1053 1.1 cgd 1054 1.1 cgd /* 1055 1.1 cgd * Called once to initialize data structures... 1056 1.1 cgd */ 1057 1.24 christos void 1058 1.1 cgd nfs_init() 1059 1.1 cgd { 1060 1.1 cgd register int i; 1061 1.1 cgd 1062 1.25 fvdl #if !defined(alpha) && defined(DIAGNOSTIC) 1063 1.25 fvdl /* 1064 1.25 fvdl * Check to see if major data structures haven't bloated. 1065 1.25 fvdl */ 1066 1.25 fvdl if (sizeof (struct nfsnode) > NFS_NODEALLOC) { 1067 1.25 fvdl printf("struct nfsnode bloated (> %dbytes)\n", NFS_NODEALLOC); 1068 1.25 fvdl printf("Try reducing NFS_SMALLFH\n"); 1069 1.25 fvdl } 1070 1.25 fvdl if (sizeof (struct nfsmount) > NFS_MNTALLOC) { 1071 1.25 fvdl printf("struct nfsmount bloated (> %dbytes)\n", NFS_MNTALLOC); 1072 1.25 fvdl printf("Try reducing NFS_MUIDHASHSIZ\n"); 1073 1.25 fvdl } 1074 1.25 fvdl if (sizeof (struct nfssvc_sock) > NFS_SVCALLOC) { 1075 1.25 fvdl printf("struct nfssvc_sock bloated (> %dbytes)\n",NFS_SVCALLOC); 1076 1.25 fvdl printf("Try reducing NFS_UIDHASHSIZ\n"); 1077 1.25 fvdl } 1078 1.25 fvdl if (sizeof (struct nfsuid) > NFS_UIDALLOC) { 1079 1.25 fvdl printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC); 1080 1.25 fvdl printf("Try unionizing the nu_nickname and nu_flag fields\n"); 1081 1.25 fvdl } 1082 1.25 fvdl #endif 1083 1.25 fvdl 1084 1.12 mycroft nfsrtt.pos = 0; 1085 1.1 cgd rpc_vers = txdr_unsigned(RPC_VER2); 1086 1.1 cgd rpc_call = txdr_unsigned(RPC_CALL); 1087 1.1 cgd rpc_reply = txdr_unsigned(RPC_REPLY); 1088 1.1 cgd rpc_msgdenied = txdr_unsigned(RPC_MSGDENIED); 1089 1.1 cgd rpc_msgaccepted = txdr_unsigned(RPC_MSGACCEPTED); 1090 1.1 cgd rpc_mismatch = txdr_unsigned(RPC_MISMATCH); 1091 1.12 mycroft rpc_autherr = txdr_unsigned(RPC_AUTHERR); 1092 1.1 cgd rpc_auth_unix = txdr_unsigned(RPCAUTH_UNIX); 1093 1.25 fvdl rpc_auth_kerb = txdr_unsigned(RPCAUTH_KERB4); 1094 1.1 cgd nfs_prog = txdr_unsigned(NFS_PROG); 1095 1.25 fvdl nqnfs_prog = txdr_unsigned(NQNFS_PROG); 1096 1.1 cgd nfs_true = txdr_unsigned(TRUE); 1097 1.1 cgd nfs_false = txdr_unsigned(FALSE); 1098 1.12 mycroft nfs_xdrneg1 = txdr_unsigned(-1); 1099 1.25 fvdl nfs_ticks = (hz * NFS_TICKINTVL + 500) / 1000; 1100 1.25 fvdl if (nfs_ticks < 1) 1101 1.25 fvdl nfs_ticks = 1; 1102 1.12 mycroft #ifdef NFSCLIENT 1103 1.1 cgd /* Ensure async daemons disabled */ 1104 1.1 cgd for (i = 0; i < NFS_MAXASYNCDAEMON; i++) 1105 1.1 cgd nfs_iodwant[i] = (struct proc *)0; 1106 1.12 mycroft TAILQ_INIT(&nfs_bufq); 1107 1.1 cgd nfs_nhinit(); /* Init the nfsnode table */ 1108 1.13 mycroft #endif /* NFSCLIENT */ 1109 1.2 glass #ifdef NFSSERVER 1110 1.12 mycroft nfsrv_init(0); /* Init server data structures */ 1111 1.1 cgd nfsrv_initcache(); /* Init the server request cache */ 1112 1.13 mycroft #endif /* NFSSERVER */ 1113 1.12 mycroft 1114 1.12 mycroft /* 1115 1.12 mycroft * Initialize the nqnfs server stuff. 1116 1.12 mycroft */ 1117 1.12 mycroft if (nqnfsstarttime == 0) { 1118 1.12 mycroft nqnfsstarttime = boottime.tv_sec + nqsrv_maxlease 1119 1.12 mycroft + nqsrv_clockskew + nqsrv_writeslack; 1120 1.12 mycroft NQLOADNOVRAM(nqnfsstarttime); 1121 1.18 mycroft CIRCLEQ_INIT(&nqtimerhead); 1122 1.18 mycroft nqfhhashtbl = hashinit(NQLCHSZ, M_NQLEASE, &nqfhhash); 1123 1.12 mycroft } 1124 1.12 mycroft 1125 1.1 cgd /* 1126 1.1 cgd * Initialize reply list and start timer 1127 1.1 cgd */ 1128 1.16 mycroft TAILQ_INIT(&nfs_reqq); 1129 1.24 christos nfs_timer(NULL); 1130 1.1 cgd } 1131 1.1 cgd 1132 1.12 mycroft #ifdef NFSCLIENT 1133 1.1 cgd /* 1134 1.12 mycroft * Attribute cache routines. 1135 1.12 mycroft * nfs_loadattrcache() - loads or updates the cache contents from attributes 1136 1.12 mycroft * that are on the mbuf list 1137 1.12 mycroft * nfs_getattrcache() - returns valid attributes if found in cache, returns 1138 1.12 mycroft * error otherwise 1139 1.1 cgd */ 1140 1.12 mycroft 1141 1.12 mycroft /* 1142 1.12 mycroft * Load the attribute cache (that lives in the nfsnode entry) with 1143 1.12 mycroft * the values on the mbuf list and 1144 1.12 mycroft * Iff vap not NULL 1145 1.12 mycroft * copy the attributes to *vaper 1146 1.12 mycroft */ 1147 1.24 christos int 1148 1.12 mycroft nfs_loadattrcache(vpp, mdp, dposp, vaper) 1149 1.12 mycroft struct vnode **vpp; 1150 1.12 mycroft struct mbuf **mdp; 1151 1.12 mycroft caddr_t *dposp; 1152 1.12 mycroft struct vattr *vaper; 1153 1.1 cgd { 1154 1.12 mycroft register struct vnode *vp = *vpp; 1155 1.12 mycroft register struct vattr *vap; 1156 1.25 fvdl register struct nfs_fattr *fp; 1157 1.24 christos extern int (**spec_nfsv2nodeop_p) __P((void *)); 1158 1.18 mycroft register struct nfsnode *np; 1159 1.22 cgd register int32_t t1; 1160 1.25 fvdl caddr_t cp2; 1161 1.25 fvdl int error = 0; 1162 1.25 fvdl int32_t rdev; 1163 1.12 mycroft struct mbuf *md; 1164 1.12 mycroft enum vtype vtyp; 1165 1.12 mycroft u_short vmode; 1166 1.12 mycroft struct timespec mtime; 1167 1.12 mycroft struct vnode *nvp; 1168 1.25 fvdl int v3 = NFS_ISV3(vp); 1169 1.1 cgd 1170 1.12 mycroft md = *mdp; 1171 1.25 fvdl t1 = (mtod(md, caddr_t) + md->m_len) - *dposp; 1172 1.25 fvdl error = nfsm_disct(mdp, dposp, NFSX_FATTR(v3), t1, &cp2); 1173 1.24 christos if (error) 1174 1.12 mycroft return (error); 1175 1.25 fvdl fp = (struct nfs_fattr *)cp2; 1176 1.25 fvdl if (v3) { 1177 1.25 fvdl vtyp = nfsv3tov_type(fp->fa_type); 1178 1.25 fvdl vmode = fxdr_unsigned(u_short, fp->fa_mode); 1179 1.25 fvdl rdev = makedev(fxdr_unsigned(u_char, fp->fa3_rdev.specdata1), 1180 1.25 fvdl fxdr_unsigned(u_char, fp->fa3_rdev.specdata2)); 1181 1.25 fvdl fxdr_nfsv3time(&fp->fa3_mtime, &mtime); 1182 1.12 mycroft } else { 1183 1.25 fvdl vtyp = nfsv2tov_type(fp->fa_type); 1184 1.25 fvdl vmode = fxdr_unsigned(u_short, fp->fa_mode); 1185 1.25 fvdl if (vtyp == VNON || vtyp == VREG) 1186 1.25 fvdl vtyp = IFTOVT(vmode); 1187 1.25 fvdl rdev = fxdr_unsigned(int32_t, fp->fa2_rdev); 1188 1.25 fvdl fxdr_nfsv2time(&fp->fa2_mtime, &mtime); 1189 1.25 fvdl 1190 1.25 fvdl /* 1191 1.25 fvdl * Really ugly NFSv2 kludge. 1192 1.25 fvdl */ 1193 1.25 fvdl if (vtyp == VCHR && rdev == 0xffffffff) 1194 1.25 fvdl vtyp = VFIFO; 1195 1.12 mycroft } 1196 1.25 fvdl 1197 1.12 mycroft /* 1198 1.12 mycroft * If v_type == VNON it is a new node, so fill in the v_type, 1199 1.12 mycroft * n_mtime fields. Check to see if it represents a special 1200 1.12 mycroft * device, and if so, check for a possible alias. Once the 1201 1.12 mycroft * correct vnode has been obtained, fill in the rest of the 1202 1.12 mycroft * information. 1203 1.12 mycroft */ 1204 1.12 mycroft np = VTONFS(vp); 1205 1.12 mycroft if (vp->v_type == VNON) { 1206 1.25 fvdl vp->v_type = vtyp; 1207 1.12 mycroft if (vp->v_type == VFIFO) { 1208 1.24 christos extern int (**fifo_nfsv2nodeop_p) __P((void *)); 1209 1.12 mycroft vp->v_op = fifo_nfsv2nodeop_p; 1210 1.12 mycroft } 1211 1.12 mycroft if (vp->v_type == VCHR || vp->v_type == VBLK) { 1212 1.12 mycroft vp->v_op = spec_nfsv2nodeop_p; 1213 1.24 christos nvp = checkalias(vp, (dev_t)rdev, vp->v_mount); 1214 1.24 christos if (nvp) { 1215 1.12 mycroft /* 1216 1.12 mycroft * Discard unneeded vnode, but save its nfsnode. 1217 1.25 fvdl * Since the nfsnode does not have a lock, its 1218 1.25 fvdl * vnode lock has to be carried over. 1219 1.12 mycroft */ 1220 1.25 fvdl #ifdef Lite2_integrated 1221 1.25 fvdl nvp->v_vnlock = vp->v_vnlock; 1222 1.25 fvdl vp->v_vnlock = NULL; 1223 1.25 fvdl #endif 1224 1.12 mycroft nvp->v_data = vp->v_data; 1225 1.12 mycroft vp->v_data = NULL; 1226 1.12 mycroft vp->v_op = spec_vnodeop_p; 1227 1.12 mycroft vrele(vp); 1228 1.12 mycroft vgone(vp); 1229 1.12 mycroft /* 1230 1.12 mycroft * Reinitialize aliased node. 1231 1.12 mycroft */ 1232 1.12 mycroft np->n_vnode = nvp; 1233 1.12 mycroft *vpp = vp = nvp; 1234 1.12 mycroft } 1235 1.12 mycroft } 1236 1.23 jtc np->n_mtime = mtime.tv_sec; 1237 1.12 mycroft } 1238 1.12 mycroft vap = &np->n_vattr; 1239 1.12 mycroft vap->va_type = vtyp; 1240 1.12 mycroft vap->va_mode = (vmode & 07777); 1241 1.12 mycroft vap->va_rdev = (dev_t)rdev; 1242 1.12 mycroft vap->va_mtime = mtime; 1243 1.12 mycroft vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 1244 1.25 fvdl if (v3) { 1245 1.25 fvdl vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 1246 1.25 fvdl vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 1247 1.25 fvdl vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 1248 1.25 fvdl fxdr_hyper(&fp->fa3_size, &vap->va_size); 1249 1.25 fvdl vap->va_blocksize = NFS_FABLKSIZE; 1250 1.25 fvdl fxdr_hyper(&fp->fa3_used, &vap->va_bytes); 1251 1.25 fvdl vap->va_fileid = fxdr_unsigned(int32_t, 1252 1.25 fvdl fp->fa3_fileid.nfsuquad[1]); 1253 1.25 fvdl fxdr_nfsv3time(&fp->fa3_atime, &vap->va_atime); 1254 1.25 fvdl fxdr_nfsv3time(&fp->fa3_ctime, &vap->va_ctime); 1255 1.25 fvdl vap->va_flags = 0; 1256 1.25 fvdl vap->va_filerev = 0; 1257 1.12 mycroft } else { 1258 1.25 fvdl vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 1259 1.25 fvdl vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 1260 1.25 fvdl vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 1261 1.25 fvdl vap->va_size = fxdr_unsigned(u_int32_t, fp->fa2_size); 1262 1.25 fvdl vap->va_blocksize = fxdr_unsigned(int32_t, fp->fa2_blocksize); 1263 1.25 fvdl vap->va_bytes = fxdr_unsigned(int32_t, fp->fa2_blocks) 1264 1.25 fvdl * NFS_FABLKSIZE; 1265 1.25 fvdl vap->va_fileid = fxdr_unsigned(int32_t, fp->fa2_fileid); 1266 1.25 fvdl fxdr_nfsv2time(&fp->fa2_atime, &vap->va_atime); 1267 1.12 mycroft vap->va_flags = 0; 1268 1.25 fvdl vap->va_ctime.tv_sec = fxdr_unsigned(u_int32_t, 1269 1.25 fvdl fp->fa2_ctime.nfsv2_sec); 1270 1.25 fvdl vap->va_ctime.tv_nsec = 0; 1271 1.25 fvdl vap->va_gen = fxdr_unsigned(u_int32_t,fp->fa2_ctime.nfsv2_usec); 1272 1.12 mycroft vap->va_filerev = 0; 1273 1.12 mycroft } 1274 1.12 mycroft if (vap->va_size != np->n_size) { 1275 1.12 mycroft if (vap->va_type == VREG) { 1276 1.12 mycroft if (np->n_flag & NMODIFIED) { 1277 1.12 mycroft if (vap->va_size < np->n_size) 1278 1.12 mycroft vap->va_size = np->n_size; 1279 1.12 mycroft else 1280 1.12 mycroft np->n_size = vap->va_size; 1281 1.12 mycroft } else 1282 1.12 mycroft np->n_size = vap->va_size; 1283 1.12 mycroft vnode_pager_setsize(vp, (u_long)np->n_size); 1284 1.12 mycroft } else 1285 1.12 mycroft np->n_size = vap->va_size; 1286 1.12 mycroft } 1287 1.12 mycroft np->n_attrstamp = time.tv_sec; 1288 1.12 mycroft if (vaper != NULL) { 1289 1.12 mycroft bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); 1290 1.12 mycroft if (np->n_flag & NCHG) { 1291 1.25 fvdl if (np->n_flag & NACC) 1292 1.25 fvdl vaper->va_atime = np->n_atim; 1293 1.25 fvdl if (np->n_flag & NUPD) 1294 1.25 fvdl vaper->va_mtime = np->n_mtim; 1295 1.12 mycroft } 1296 1.12 mycroft } 1297 1.12 mycroft return (0); 1298 1.12 mycroft } 1299 1.12 mycroft 1300 1.12 mycroft /* 1301 1.12 mycroft * Check the time stamp 1302 1.12 mycroft * If the cache is valid, copy contents to *vap and return 0 1303 1.12 mycroft * otherwise return an error 1304 1.12 mycroft */ 1305 1.24 christos int 1306 1.12 mycroft nfs_getattrcache(vp, vaper) 1307 1.12 mycroft register struct vnode *vp; 1308 1.12 mycroft struct vattr *vaper; 1309 1.12 mycroft { 1310 1.12 mycroft register struct nfsnode *np = VTONFS(vp); 1311 1.12 mycroft register struct vattr *vap; 1312 1.12 mycroft 1313 1.25 fvdl if ((time.tv_sec - np->n_attrstamp) >= NFS_ATTRTIMEO(np)) { 1314 1.12 mycroft nfsstats.attrcache_misses++; 1315 1.12 mycroft return (ENOENT); 1316 1.12 mycroft } 1317 1.12 mycroft nfsstats.attrcache_hits++; 1318 1.12 mycroft vap = &np->n_vattr; 1319 1.12 mycroft if (vap->va_size != np->n_size) { 1320 1.12 mycroft if (vap->va_type == VREG) { 1321 1.12 mycroft if (np->n_flag & NMODIFIED) { 1322 1.12 mycroft if (vap->va_size < np->n_size) 1323 1.12 mycroft vap->va_size = np->n_size; 1324 1.12 mycroft else 1325 1.12 mycroft np->n_size = vap->va_size; 1326 1.12 mycroft } else 1327 1.12 mycroft np->n_size = vap->va_size; 1328 1.12 mycroft vnode_pager_setsize(vp, (u_long)np->n_size); 1329 1.12 mycroft } else 1330 1.12 mycroft np->n_size = vap->va_size; 1331 1.12 mycroft } 1332 1.12 mycroft bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(struct vattr)); 1333 1.12 mycroft if (np->n_flag & NCHG) { 1334 1.25 fvdl if (np->n_flag & NACC) 1335 1.25 fvdl vaper->va_atime = np->n_atim; 1336 1.25 fvdl if (np->n_flag & NUPD) 1337 1.25 fvdl vaper->va_mtime = np->n_mtim; 1338 1.1 cgd } 1339 1.12 mycroft return (0); 1340 1.1 cgd } 1341 1.25 fvdl #endif /* NFSCLIENT */ 1342 1.1 cgd 1343 1.1 cgd /* 1344 1.12 mycroft * Set up nameidata for a lookup() call and do it 1345 1.1 cgd */ 1346 1.24 christos int 1347 1.25 fvdl nfs_namei(ndp, fhp, len, slp, nam, mdp, dposp, retdirp, p, kerbflag) 1348 1.1 cgd register struct nameidata *ndp; 1349 1.1 cgd fhandle_t *fhp; 1350 1.1 cgd int len; 1351 1.12 mycroft struct nfssvc_sock *slp; 1352 1.12 mycroft struct mbuf *nam; 1353 1.1 cgd struct mbuf **mdp; 1354 1.1 cgd caddr_t *dposp; 1355 1.25 fvdl struct vnode **retdirp; 1356 1.1 cgd struct proc *p; 1357 1.25 fvdl int kerbflag; 1358 1.1 cgd { 1359 1.1 cgd register int i, rem; 1360 1.1 cgd register struct mbuf *md; 1361 1.1 cgd register char *fromcp, *tocp; 1362 1.1 cgd struct vnode *dp; 1363 1.12 mycroft int error, rdonly; 1364 1.12 mycroft struct componentname *cnp = &ndp->ni_cnd; 1365 1.1 cgd 1366 1.25 fvdl *retdirp = (struct vnode *)0; 1367 1.12 mycroft MALLOC(cnp->cn_pnbuf, char *, len + 1, M_NAMEI, M_WAITOK); 1368 1.1 cgd /* 1369 1.1 cgd * Copy the name from the mbuf list to ndp->ni_pnbuf 1370 1.1 cgd * and set the various ndp fields appropriately. 1371 1.1 cgd */ 1372 1.1 cgd fromcp = *dposp; 1373 1.12 mycroft tocp = cnp->cn_pnbuf; 1374 1.1 cgd md = *mdp; 1375 1.1 cgd rem = mtod(md, caddr_t) + md->m_len - fromcp; 1376 1.1 cgd for (i = 0; i < len; i++) { 1377 1.1 cgd while (rem == 0) { 1378 1.1 cgd md = md->m_next; 1379 1.1 cgd if (md == NULL) { 1380 1.1 cgd error = EBADRPC; 1381 1.1 cgd goto out; 1382 1.1 cgd } 1383 1.1 cgd fromcp = mtod(md, caddr_t); 1384 1.1 cgd rem = md->m_len; 1385 1.1 cgd } 1386 1.1 cgd if (*fromcp == '\0' || *fromcp == '/') { 1387 1.25 fvdl error = EACCES; 1388 1.1 cgd goto out; 1389 1.1 cgd } 1390 1.1 cgd *tocp++ = *fromcp++; 1391 1.1 cgd rem--; 1392 1.1 cgd } 1393 1.1 cgd *tocp = '\0'; 1394 1.1 cgd *mdp = md; 1395 1.1 cgd *dposp = fromcp; 1396 1.1 cgd len = nfsm_rndup(len)-len; 1397 1.1 cgd if (len > 0) { 1398 1.1 cgd if (rem >= len) 1399 1.1 cgd *dposp += len; 1400 1.24 christos else if ((error = nfs_adv(mdp, dposp, len, rem)) != 0) 1401 1.1 cgd goto out; 1402 1.1 cgd } 1403 1.12 mycroft ndp->ni_pathlen = tocp - cnp->cn_pnbuf; 1404 1.12 mycroft cnp->cn_nameptr = cnp->cn_pnbuf; 1405 1.1 cgd /* 1406 1.1 cgd * Extract and set starting directory. 1407 1.1 cgd */ 1408 1.24 christos error = nfsrv_fhtovp(fhp, FALSE, &dp, ndp->ni_cnd.cn_cred, slp, 1409 1.25 fvdl nam, &rdonly, kerbflag); 1410 1.24 christos if (error) 1411 1.1 cgd goto out; 1412 1.1 cgd if (dp->v_type != VDIR) { 1413 1.1 cgd vrele(dp); 1414 1.1 cgd error = ENOTDIR; 1415 1.1 cgd goto out; 1416 1.1 cgd } 1417 1.25 fvdl VREF(dp); 1418 1.25 fvdl *retdirp = dp; 1419 1.1 cgd ndp->ni_startdir = dp; 1420 1.12 mycroft if (rdonly) 1421 1.12 mycroft cnp->cn_flags |= (NOCROSSMOUNT | RDONLY); 1422 1.12 mycroft else 1423 1.12 mycroft cnp->cn_flags |= NOCROSSMOUNT; 1424 1.1 cgd /* 1425 1.1 cgd * And call lookup() to do the real work 1426 1.1 cgd */ 1427 1.12 mycroft cnp->cn_proc = p; 1428 1.25 fvdl error = lookup(ndp); 1429 1.25 fvdl if (error) 1430 1.1 cgd goto out; 1431 1.1 cgd /* 1432 1.1 cgd * Check for encountering a symbolic link 1433 1.1 cgd */ 1434 1.12 mycroft if (cnp->cn_flags & ISSYMLINK) { 1435 1.12 mycroft if ((cnp->cn_flags & LOCKPARENT) && ndp->ni_pathlen == 1) 1436 1.1 cgd vput(ndp->ni_dvp); 1437 1.1 cgd else 1438 1.1 cgd vrele(ndp->ni_dvp); 1439 1.1 cgd vput(ndp->ni_vp); 1440 1.1 cgd ndp->ni_vp = NULL; 1441 1.1 cgd error = EINVAL; 1442 1.1 cgd goto out; 1443 1.1 cgd } 1444 1.1 cgd /* 1445 1.1 cgd * Check for saved name request 1446 1.1 cgd */ 1447 1.12 mycroft if (cnp->cn_flags & (SAVENAME | SAVESTART)) { 1448 1.12 mycroft cnp->cn_flags |= HASBUF; 1449 1.1 cgd return (0); 1450 1.1 cgd } 1451 1.1 cgd out: 1452 1.12 mycroft FREE(cnp->cn_pnbuf, M_NAMEI); 1453 1.1 cgd return (error); 1454 1.1 cgd } 1455 1.1 cgd 1456 1.1 cgd /* 1457 1.1 cgd * A fiddled version of m_adj() that ensures null fill to a long 1458 1.1 cgd * boundary and only trims off the back end 1459 1.1 cgd */ 1460 1.12 mycroft void 1461 1.1 cgd nfsm_adj(mp, len, nul) 1462 1.1 cgd struct mbuf *mp; 1463 1.1 cgd register int len; 1464 1.1 cgd int nul; 1465 1.1 cgd { 1466 1.1 cgd register struct mbuf *m; 1467 1.1 cgd register int count, i; 1468 1.1 cgd register char *cp; 1469 1.1 cgd 1470 1.1 cgd /* 1471 1.1 cgd * Trim from tail. Scan the mbuf chain, 1472 1.1 cgd * calculating its length and finding the last mbuf. 1473 1.1 cgd * If the adjustment only affects this mbuf, then just 1474 1.1 cgd * adjust and return. Otherwise, rescan and truncate 1475 1.1 cgd * after the remaining size. 1476 1.1 cgd */ 1477 1.1 cgd count = 0; 1478 1.1 cgd m = mp; 1479 1.1 cgd for (;;) { 1480 1.1 cgd count += m->m_len; 1481 1.1 cgd if (m->m_next == (struct mbuf *)0) 1482 1.1 cgd break; 1483 1.1 cgd m = m->m_next; 1484 1.1 cgd } 1485 1.1 cgd if (m->m_len > len) { 1486 1.1 cgd m->m_len -= len; 1487 1.1 cgd if (nul > 0) { 1488 1.1 cgd cp = mtod(m, caddr_t)+m->m_len-nul; 1489 1.1 cgd for (i = 0; i < nul; i++) 1490 1.1 cgd *cp++ = '\0'; 1491 1.1 cgd } 1492 1.1 cgd return; 1493 1.1 cgd } 1494 1.1 cgd count -= len; 1495 1.1 cgd if (count < 0) 1496 1.1 cgd count = 0; 1497 1.1 cgd /* 1498 1.1 cgd * Correct length for chain is "count". 1499 1.1 cgd * Find the mbuf with last data, adjust its length, 1500 1.1 cgd * and toss data from remaining mbufs on chain. 1501 1.1 cgd */ 1502 1.1 cgd for (m = mp; m; m = m->m_next) { 1503 1.1 cgd if (m->m_len >= count) { 1504 1.1 cgd m->m_len = count; 1505 1.1 cgd if (nul > 0) { 1506 1.1 cgd cp = mtod(m, caddr_t)+m->m_len-nul; 1507 1.1 cgd for (i = 0; i < nul; i++) 1508 1.1 cgd *cp++ = '\0'; 1509 1.1 cgd } 1510 1.1 cgd break; 1511 1.1 cgd } 1512 1.1 cgd count -= m->m_len; 1513 1.1 cgd } 1514 1.25 fvdl for (m = m->m_next;m;m = m->m_next) 1515 1.1 cgd m->m_len = 0; 1516 1.1 cgd } 1517 1.1 cgd 1518 1.1 cgd /* 1519 1.25 fvdl * Make these functions instead of macros, so that the kernel text size 1520 1.25 fvdl * doesn't get too big... 1521 1.25 fvdl */ 1522 1.25 fvdl void 1523 1.25 fvdl nfsm_srvwcc(nfsd, before_ret, before_vap, after_ret, after_vap, mbp, bposp) 1524 1.25 fvdl struct nfsrv_descript *nfsd; 1525 1.25 fvdl int before_ret; 1526 1.25 fvdl register struct vattr *before_vap; 1527 1.25 fvdl int after_ret; 1528 1.25 fvdl struct vattr *after_vap; 1529 1.25 fvdl struct mbuf **mbp; 1530 1.25 fvdl char **bposp; 1531 1.25 fvdl { 1532 1.25 fvdl register struct mbuf *mb = *mbp, *mb2; 1533 1.25 fvdl register char *bpos = *bposp; 1534 1.25 fvdl register u_int32_t *tl; 1535 1.25 fvdl 1536 1.25 fvdl if (before_ret) { 1537 1.25 fvdl nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 1538 1.25 fvdl *tl = nfs_false; 1539 1.25 fvdl } else { 1540 1.25 fvdl nfsm_build(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 1541 1.25 fvdl *tl++ = nfs_true; 1542 1.25 fvdl txdr_hyper(&(before_vap->va_size), tl); 1543 1.25 fvdl tl += 2; 1544 1.25 fvdl txdr_nfsv3time(&(before_vap->va_mtime), tl); 1545 1.25 fvdl tl += 2; 1546 1.25 fvdl txdr_nfsv3time(&(before_vap->va_ctime), tl); 1547 1.25 fvdl } 1548 1.25 fvdl *bposp = bpos; 1549 1.25 fvdl *mbp = mb; 1550 1.25 fvdl nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp); 1551 1.25 fvdl } 1552 1.25 fvdl 1553 1.25 fvdl void 1554 1.25 fvdl nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp) 1555 1.25 fvdl struct nfsrv_descript *nfsd; 1556 1.25 fvdl int after_ret; 1557 1.25 fvdl struct vattr *after_vap; 1558 1.25 fvdl struct mbuf **mbp; 1559 1.25 fvdl char **bposp; 1560 1.25 fvdl { 1561 1.25 fvdl register struct mbuf *mb = *mbp, *mb2; 1562 1.25 fvdl register char *bpos = *bposp; 1563 1.25 fvdl register u_int32_t *tl; 1564 1.25 fvdl register struct nfs_fattr *fp; 1565 1.25 fvdl 1566 1.25 fvdl if (after_ret) { 1567 1.25 fvdl nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 1568 1.25 fvdl *tl = nfs_false; 1569 1.25 fvdl } else { 1570 1.25 fvdl nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_V3FATTR); 1571 1.25 fvdl *tl++ = nfs_true; 1572 1.25 fvdl fp = (struct nfs_fattr *)tl; 1573 1.25 fvdl nfsm_srvfattr(nfsd, after_vap, fp); 1574 1.25 fvdl } 1575 1.25 fvdl *mbp = mb; 1576 1.25 fvdl *bposp = bpos; 1577 1.25 fvdl } 1578 1.25 fvdl 1579 1.25 fvdl void 1580 1.25 fvdl nfsm_srvfattr(nfsd, vap, fp) 1581 1.25 fvdl register struct nfsrv_descript *nfsd; 1582 1.25 fvdl register struct vattr *vap; 1583 1.25 fvdl register struct nfs_fattr *fp; 1584 1.25 fvdl { 1585 1.25 fvdl 1586 1.25 fvdl fp->fa_nlink = txdr_unsigned(vap->va_nlink); 1587 1.25 fvdl fp->fa_uid = txdr_unsigned(vap->va_uid); 1588 1.25 fvdl fp->fa_gid = txdr_unsigned(vap->va_gid); 1589 1.25 fvdl if (nfsd->nd_flag & ND_NFSV3) { 1590 1.25 fvdl fp->fa_type = vtonfsv3_type(vap->va_type); 1591 1.25 fvdl fp->fa_mode = vtonfsv3_mode(vap->va_mode); 1592 1.25 fvdl txdr_hyper(&vap->va_size, &fp->fa3_size); 1593 1.25 fvdl txdr_hyper(&vap->va_bytes, &fp->fa3_used); 1594 1.25 fvdl fp->fa3_rdev.specdata1 = txdr_unsigned(major(vap->va_rdev)); 1595 1.25 fvdl fp->fa3_rdev.specdata2 = txdr_unsigned(minor(vap->va_rdev)); 1596 1.25 fvdl fp->fa3_fsid.nfsuquad[0] = 0; 1597 1.25 fvdl fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(vap->va_fsid); 1598 1.25 fvdl fp->fa3_fileid.nfsuquad[0] = 0; 1599 1.25 fvdl fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(vap->va_fileid); 1600 1.25 fvdl txdr_nfsv3time(&vap->va_atime, &fp->fa3_atime); 1601 1.25 fvdl txdr_nfsv3time(&vap->va_mtime, &fp->fa3_mtime); 1602 1.25 fvdl txdr_nfsv3time(&vap->va_ctime, &fp->fa3_ctime); 1603 1.25 fvdl } else { 1604 1.25 fvdl fp->fa_type = vtonfsv2_type(vap->va_type); 1605 1.25 fvdl fp->fa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 1606 1.25 fvdl fp->fa2_size = txdr_unsigned(vap->va_size); 1607 1.25 fvdl fp->fa2_blocksize = txdr_unsigned(vap->va_blocksize); 1608 1.25 fvdl if (vap->va_type == VFIFO) 1609 1.25 fvdl fp->fa2_rdev = 0xffffffff; 1610 1.25 fvdl else 1611 1.25 fvdl fp->fa2_rdev = txdr_unsigned(vap->va_rdev); 1612 1.25 fvdl fp->fa2_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); 1613 1.25 fvdl fp->fa2_fsid = txdr_unsigned(vap->va_fsid); 1614 1.25 fvdl fp->fa2_fileid = txdr_unsigned(vap->va_fileid); 1615 1.25 fvdl txdr_nfsv2time(&vap->va_atime, &fp->fa2_atime); 1616 1.25 fvdl txdr_nfsv2time(&vap->va_mtime, &fp->fa2_mtime); 1617 1.25 fvdl txdr_nfsv2time(&vap->va_ctime, &fp->fa2_ctime); 1618 1.25 fvdl } 1619 1.25 fvdl } 1620 1.25 fvdl 1621 1.25 fvdl /* 1622 1.1 cgd * nfsrv_fhtovp() - convert a fh to a vnode ptr (optionally locked) 1623 1.1 cgd * - look up fsid in mount list (if not found ret error) 1624 1.12 mycroft * - get vp and export rights by calling VFS_FHTOVP() 1625 1.12 mycroft * - if cred->cr_uid == 0 or MNT_EXPORTANON set it to credanon 1626 1.1 cgd * - if not lockflag unlock it with VOP_UNLOCK() 1627 1.1 cgd */ 1628 1.24 christos int 1629 1.25 fvdl nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag) 1630 1.1 cgd fhandle_t *fhp; 1631 1.1 cgd int lockflag; 1632 1.1 cgd struct vnode **vpp; 1633 1.1 cgd struct ucred *cred; 1634 1.12 mycroft struct nfssvc_sock *slp; 1635 1.12 mycroft struct mbuf *nam; 1636 1.12 mycroft int *rdonlyp; 1637 1.25 fvdl int kerbflag; 1638 1.1 cgd { 1639 1.25 fvdl #ifdef Lite2_integrated 1640 1.25 fvdl struct proc *p = curproc; /* XXX */ 1641 1.25 fvdl #endif 1642 1.1 cgd register struct mount *mp; 1643 1.12 mycroft register int i; 1644 1.12 mycroft struct ucred *credanon; 1645 1.12 mycroft int error, exflags; 1646 1.1 cgd 1647 1.12 mycroft *vpp = (struct vnode *)0; 1648 1.25 fvdl #ifdef Lite2_integrated 1649 1.25 fvdl mp = vfs_getvfs(&fhp->fh_fsid); 1650 1.25 fvdl #else 1651 1.25 fvdl mp = getvfs(&fhp->fh_fsid); 1652 1.25 fvdl #endif 1653 1.25 fvdl if (!mp) 1654 1.1 cgd return (ESTALE); 1655 1.24 christos error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon); 1656 1.24 christos if (error) 1657 1.12 mycroft return (error); 1658 1.12 mycroft /* 1659 1.12 mycroft * Check/setup credentials. 1660 1.12 mycroft */ 1661 1.12 mycroft if (exflags & MNT_EXKERB) { 1662 1.25 fvdl if (!kerbflag) { 1663 1.12 mycroft vput(*vpp); 1664 1.25 fvdl return (NFSERR_AUTHERR | AUTH_TOOWEAK); 1665 1.12 mycroft } 1666 1.25 fvdl } else if (kerbflag) { 1667 1.25 fvdl vput(*vpp); 1668 1.25 fvdl return (NFSERR_AUTHERR | AUTH_TOOWEAK); 1669 1.12 mycroft } else if (cred->cr_uid == 0 || (exflags & MNT_EXPORTANON)) { 1670 1.12 mycroft cred->cr_uid = credanon->cr_uid; 1671 1.19 jtc cred->cr_gid = credanon->cr_gid; 1672 1.12 mycroft for (i = 0; i < credanon->cr_ngroups && i < NGROUPS; i++) 1673 1.12 mycroft cred->cr_groups[i] = credanon->cr_groups[i]; 1674 1.15 mycroft cred->cr_ngroups = i; 1675 1.12 mycroft } 1676 1.12 mycroft if (exflags & MNT_EXRDONLY) 1677 1.12 mycroft *rdonlyp = 1; 1678 1.12 mycroft else 1679 1.12 mycroft *rdonlyp = 0; 1680 1.1 cgd if (!lockflag) 1681 1.25 fvdl #ifdef Lite2_integrated 1682 1.25 fvdl VOP_UNLOCK(*vpp, 0, p); 1683 1.25 fvdl #else 1684 1.1 cgd VOP_UNLOCK(*vpp); 1685 1.25 fvdl #endif 1686 1.1 cgd return (0); 1687 1.1 cgd } 1688 1.1 cgd 1689 1.1 cgd /* 1690 1.12 mycroft * This function compares two net addresses by family and returns TRUE 1691 1.12 mycroft * if they are the same host. 1692 1.12 mycroft * If there is any doubt, return FALSE. 1693 1.12 mycroft * The AF_INET family is handled as a special case so that address mbufs 1694 1.12 mycroft * don't need to be saved to store "struct in_addr", which is only 4 bytes. 1695 1.1 cgd */ 1696 1.24 christos int 1697 1.12 mycroft netaddr_match(family, haddr, nam) 1698 1.12 mycroft int family; 1699 1.12 mycroft union nethostaddr *haddr; 1700 1.12 mycroft struct mbuf *nam; 1701 1.1 cgd { 1702 1.12 mycroft register struct sockaddr_in *inetaddr; 1703 1.1 cgd 1704 1.12 mycroft switch (family) { 1705 1.12 mycroft case AF_INET: 1706 1.12 mycroft inetaddr = mtod(nam, struct sockaddr_in *); 1707 1.12 mycroft if (inetaddr->sin_family == AF_INET && 1708 1.12 mycroft inetaddr->sin_addr.s_addr == haddr->had_inetaddr) 1709 1.12 mycroft return (1); 1710 1.12 mycroft break; 1711 1.12 mycroft #ifdef ISO 1712 1.12 mycroft case AF_ISO: 1713 1.12 mycroft { 1714 1.12 mycroft register struct sockaddr_iso *isoaddr1, *isoaddr2; 1715 1.12 mycroft 1716 1.12 mycroft isoaddr1 = mtod(nam, struct sockaddr_iso *); 1717 1.12 mycroft isoaddr2 = mtod(haddr->had_nam, struct sockaddr_iso *); 1718 1.12 mycroft if (isoaddr1->siso_family == AF_ISO && 1719 1.12 mycroft isoaddr1->siso_nlen > 0 && 1720 1.12 mycroft isoaddr1->siso_nlen == isoaddr2->siso_nlen && 1721 1.12 mycroft SAME_ISOADDR(isoaddr1, isoaddr2)) 1722 1.12 mycroft return (1); 1723 1.12 mycroft break; 1724 1.12 mycroft } 1725 1.12 mycroft #endif /* ISO */ 1726 1.12 mycroft default: 1727 1.12 mycroft break; 1728 1.12 mycroft }; 1729 1.12 mycroft return (0); 1730 1.25 fvdl } 1731 1.25 fvdl 1732 1.25 fvdl static nfsuint64 nfs_nullcookie = {{ 0, 0 }}; 1733 1.25 fvdl /* 1734 1.25 fvdl * This function finds the directory cookie that corresponds to the 1735 1.25 fvdl * logical byte offset given. 1736 1.25 fvdl */ 1737 1.25 fvdl nfsuint64 * 1738 1.25 fvdl nfs_getcookie(np, off, add) 1739 1.25 fvdl register struct nfsnode *np; 1740 1.25 fvdl off_t off; 1741 1.25 fvdl int add; 1742 1.25 fvdl { 1743 1.25 fvdl register struct nfsdmap *dp, *dp2; 1744 1.25 fvdl register int pos; 1745 1.25 fvdl 1746 1.25 fvdl pos = off / NFS_DIRBLKSIZ; 1747 1.25 fvdl if (pos == 0) { 1748 1.25 fvdl #ifdef DIAGNOSTIC 1749 1.25 fvdl if (add) 1750 1.25 fvdl panic("nfs getcookie add at 0"); 1751 1.25 fvdl #endif 1752 1.25 fvdl return (&nfs_nullcookie); 1753 1.25 fvdl } 1754 1.25 fvdl pos--; 1755 1.25 fvdl dp = np->n_cookies.lh_first; 1756 1.25 fvdl if (!dp) { 1757 1.25 fvdl if (add) { 1758 1.25 fvdl MALLOC(dp, struct nfsdmap *, sizeof (struct nfsdmap), 1759 1.25 fvdl M_NFSDIROFF, M_WAITOK); 1760 1.25 fvdl dp->ndm_eocookie = 0; 1761 1.25 fvdl LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list); 1762 1.25 fvdl } else 1763 1.25 fvdl return ((nfsuint64 *)0); 1764 1.25 fvdl } 1765 1.25 fvdl while (pos >= NFSNUMCOOKIES) { 1766 1.25 fvdl pos -= NFSNUMCOOKIES; 1767 1.25 fvdl if (dp->ndm_list.le_next) { 1768 1.25 fvdl if (!add && dp->ndm_eocookie < NFSNUMCOOKIES && 1769 1.25 fvdl pos >= dp->ndm_eocookie) 1770 1.25 fvdl return ((nfsuint64 *)0); 1771 1.25 fvdl dp = dp->ndm_list.le_next; 1772 1.25 fvdl } else if (add) { 1773 1.25 fvdl MALLOC(dp2, struct nfsdmap *, sizeof (struct nfsdmap), 1774 1.25 fvdl M_NFSDIROFF, M_WAITOK); 1775 1.25 fvdl dp2->ndm_eocookie = 0; 1776 1.25 fvdl LIST_INSERT_AFTER(dp, dp2, ndm_list); 1777 1.25 fvdl dp = dp2; 1778 1.25 fvdl } else 1779 1.25 fvdl return ((nfsuint64 *)0); 1780 1.25 fvdl } 1781 1.25 fvdl if (pos >= dp->ndm_eocookie) { 1782 1.25 fvdl if (add) 1783 1.25 fvdl dp->ndm_eocookie = pos + 1; 1784 1.25 fvdl else 1785 1.25 fvdl return ((nfsuint64 *)0); 1786 1.25 fvdl } 1787 1.25 fvdl return (&dp->ndm_cookies[pos]); 1788 1.25 fvdl } 1789 1.25 fvdl 1790 1.25 fvdl /* 1791 1.25 fvdl * Invalidate cached directory information, except for the actual directory 1792 1.25 fvdl * blocks (which are invalidated separately). 1793 1.25 fvdl * Done mainly to avoid the use of stale offset cookies. 1794 1.25 fvdl */ 1795 1.25 fvdl void 1796 1.25 fvdl nfs_invaldir(vp) 1797 1.25 fvdl register struct vnode *vp; 1798 1.25 fvdl { 1799 1.26 fvdl #ifdef notdef /* XXX */ 1800 1.25 fvdl register struct nfsnode *np = VTONFS(vp); 1801 1.25 fvdl 1802 1.25 fvdl #ifdef DIAGNOSTIC 1803 1.25 fvdl if (vp->v_type != VDIR) 1804 1.25 fvdl panic("nfs: invaldir not dir"); 1805 1.25 fvdl #endif 1806 1.25 fvdl np->n_direofoffset = 0; 1807 1.25 fvdl np->n_cookieverf.nfsuquad[0] = 0; 1808 1.25 fvdl np->n_cookieverf.nfsuquad[1] = 0; 1809 1.25 fvdl if (np->n_cookies.lh_first) 1810 1.25 fvdl np->n_cookies.lh_first->ndm_eocookie = 0; 1811 1.26 fvdl #endif 1812 1.25 fvdl } 1813 1.25 fvdl 1814 1.25 fvdl /* 1815 1.25 fvdl * The write verifier has changed (probably due to a server reboot), so all 1816 1.25 fvdl * B_NEEDCOMMIT blocks will have to be written again. Since they are on the 1817 1.25 fvdl * dirty block list as B_DELWRI, all this takes is clearing the B_NEEDCOMMIT 1818 1.25 fvdl * flag. Once done the new write verifier can be set for the mount point. 1819 1.25 fvdl */ 1820 1.25 fvdl void 1821 1.25 fvdl nfs_clearcommit(mp) 1822 1.25 fvdl struct mount *mp; 1823 1.25 fvdl { 1824 1.25 fvdl register struct vnode *vp, *nvp; 1825 1.25 fvdl register struct buf *bp, *nbp; 1826 1.25 fvdl int s; 1827 1.25 fvdl 1828 1.25 fvdl s = splbio(); 1829 1.25 fvdl loop: 1830 1.25 fvdl for (vp = mp->mnt_vnodelist.lh_first; vp; vp = nvp) { 1831 1.25 fvdl if (vp->v_mount != mp) /* Paranoia */ 1832 1.25 fvdl goto loop; 1833 1.25 fvdl nvp = vp->v_mntvnodes.le_next; 1834 1.25 fvdl for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { 1835 1.25 fvdl nbp = bp->b_vnbufs.le_next; 1836 1.25 fvdl if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT)) 1837 1.25 fvdl == (B_DELWRI | B_NEEDCOMMIT)) 1838 1.25 fvdl bp->b_flags &= ~B_NEEDCOMMIT; 1839 1.25 fvdl } 1840 1.25 fvdl } 1841 1.25 fvdl splx(s); 1842 1.25 fvdl } 1843 1.25 fvdl 1844 1.25 fvdl /* 1845 1.25 fvdl * Map errnos to NFS error numbers. For Version 3 also filter out error 1846 1.25 fvdl * numbers not specified for the associated procedure. 1847 1.25 fvdl */ 1848 1.25 fvdl int 1849 1.25 fvdl nfsrv_errmap(nd, err) 1850 1.25 fvdl struct nfsrv_descript *nd; 1851 1.25 fvdl register int err; 1852 1.25 fvdl { 1853 1.25 fvdl register short *defaulterrp, *errp; 1854 1.25 fvdl 1855 1.25 fvdl if (nd->nd_flag & ND_NFSV3) { 1856 1.25 fvdl if (nd->nd_procnum <= NFSPROC_COMMIT) { 1857 1.25 fvdl errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum]; 1858 1.25 fvdl while (*++errp) { 1859 1.25 fvdl if (*errp == err) 1860 1.25 fvdl return (err); 1861 1.25 fvdl else if (*errp > err) 1862 1.25 fvdl break; 1863 1.25 fvdl } 1864 1.25 fvdl return ((int)*defaulterrp); 1865 1.25 fvdl } else 1866 1.25 fvdl return (err & 0xffff); 1867 1.25 fvdl } 1868 1.25 fvdl if (err <= ELAST) 1869 1.25 fvdl return ((int)nfsrv_v2errmap[err - 1]); 1870 1.25 fvdl return (NFSERR_IO); 1871 1.25 fvdl } 1872 1.25 fvdl 1873 1.25 fvdl /* 1874 1.25 fvdl * Sort the group list in increasing numerical order. 1875 1.25 fvdl * (Insertion sort by Chris Torek, who was grossed out by the bubble sort 1876 1.25 fvdl * that used to be here.) 1877 1.25 fvdl */ 1878 1.25 fvdl void 1879 1.25 fvdl nfsrvw_sort(list, num) 1880 1.25 fvdl register gid_t *list; 1881 1.25 fvdl register int num; 1882 1.25 fvdl { 1883 1.25 fvdl register int i, j; 1884 1.25 fvdl gid_t v; 1885 1.25 fvdl 1886 1.25 fvdl /* Insertion sort. */ 1887 1.25 fvdl for (i = 1; i < num; i++) { 1888 1.25 fvdl v = list[i]; 1889 1.25 fvdl /* find correct slot for value v, moving others up */ 1890 1.25 fvdl for (j = i; --j >= 0 && v < list[j];) 1891 1.25 fvdl list[j + 1] = list[j]; 1892 1.25 fvdl list[j + 1] = v; 1893 1.25 fvdl } 1894 1.25 fvdl } 1895 1.25 fvdl 1896 1.25 fvdl /* 1897 1.25 fvdl * copy credentials making sure that the result can be compared with bcmp(). 1898 1.25 fvdl */ 1899 1.25 fvdl void 1900 1.25 fvdl nfsrv_setcred(incred, outcred) 1901 1.25 fvdl register struct ucred *incred, *outcred; 1902 1.25 fvdl { 1903 1.25 fvdl register int i; 1904 1.25 fvdl 1905 1.25 fvdl bzero((caddr_t)outcred, sizeof (struct ucred)); 1906 1.25 fvdl outcred->cr_ref = 1; 1907 1.25 fvdl outcred->cr_uid = incred->cr_uid; 1908 1.25 fvdl outcred->cr_gid = incred->cr_gid; 1909 1.25 fvdl outcred->cr_ngroups = incred->cr_ngroups; 1910 1.25 fvdl for (i = 0; i < incred->cr_ngroups; i++) 1911 1.25 fvdl outcred->cr_groups[i] = incred->cr_groups[i]; 1912 1.25 fvdl nfsrvw_sort(outcred->cr_groups, outcred->cr_ngroups); 1913 1.1 cgd } 1914
Indexes created Mon Sep 22 13:09:51 GMT 2025