nfs_subs.c revision 1.45
1 1.45 fvdl /* $NetBSD: nfs_subs.c,v 1.45 1997/07/14 20:46:20 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 1.30 fvdl #include <sys/time.h> 59 1.43 fvdl #include <sys/dirent.h> 60 1.25 fvdl 61 1.25 fvdl #include <vm/vm.h> 62 1.1 cgd 63 1.9 mycroft #include <nfs/rpcv2.h> 64 1.25 fvdl #include <nfs/nfsproto.h> 65 1.9 mycroft #include <nfs/nfsnode.h> 66 1.9 mycroft #include <nfs/nfs.h> 67 1.9 mycroft #include <nfs/xdr_subs.h> 68 1.9 mycroft #include <nfs/nfsm_subs.h> 69 1.12 mycroft #include <nfs/nfsmount.h> 70 1.12 mycroft #include <nfs/nqnfs.h> 71 1.12 mycroft #include <nfs/nfsrtt.h> 72 1.24 christos #include <nfs/nfs_var.h> 73 1.12 mycroft 74 1.12 mycroft #include <miscfs/specfs/specdev.h> 75 1.12 mycroft 76 1.24 christos #include <vm/vm.h> 77 1.24 christos 78 1.12 mycroft #include <netinet/in.h> 79 1.12 mycroft #ifdef ISO 80 1.12 mycroft #include <netiso/iso.h> 81 1.12 mycroft #endif 82 1.1 cgd 83 1.1 cgd /* 84 1.1 cgd * Data items converted to xdr at startup, since they are constant 85 1.1 cgd * This is kinda hokey, but may save a little time doing byte swaps 86 1.1 cgd */ 87 1.22 cgd u_int32_t nfs_xdrneg1; 88 1.22 cgd u_int32_t rpc_call, rpc_vers, rpc_reply, rpc_msgdenied, rpc_autherr, 89 1.25 fvdl rpc_mismatch, rpc_auth_unix, rpc_msgaccepted, 90 1.12 mycroft rpc_auth_kerb; 91 1.25 fvdl u_int32_t nfs_prog, nqnfs_prog, nfs_true, nfs_false; 92 1.12 mycroft 93 1.1 cgd /* And other global data */ 94 1.22 cgd static u_int32_t nfs_xid = 0; 95 1.25 fvdl nfstype nfsv2_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK, NFNON, 96 1.25 fvdl NFCHR, NFNON }; 97 1.25 fvdl nfstype nfsv3_type[9] = { NFNON, NFREG, NFDIR, NFBLK, NFCHR, NFLNK, NFSOCK, 98 1.25 fvdl NFFIFO, NFNON }; 99 1.25 fvdl enum vtype nv2tov_type[8] = { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON }; 100 1.25 fvdl enum vtype nv3tov_type[8]={ VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO }; 101 1.25 fvdl int nfs_ticks; 102 1.43 fvdl extern struct nfs_public nfs_pub; 103 1.25 fvdl 104 1.35 thorpej /* NFS client/server stats. */ 105 1.35 thorpej struct nfsstats nfsstats; 106 1.35 thorpej 107 1.25 fvdl /* 108 1.25 fvdl * Mapping of old NFS Version 2 RPC numbers to generic numbers. 109 1.25 fvdl */ 110 1.25 fvdl int nfsv3_procid[NFS_NPROCS] = { 111 1.25 fvdl NFSPROC_NULL, 112 1.25 fvdl NFSPROC_GETATTR, 113 1.25 fvdl NFSPROC_SETATTR, 114 1.25 fvdl NFSPROC_NOOP, 115 1.25 fvdl NFSPROC_LOOKUP, 116 1.25 fvdl NFSPROC_READLINK, 117 1.25 fvdl NFSPROC_READ, 118 1.25 fvdl NFSPROC_NOOP, 119 1.25 fvdl NFSPROC_WRITE, 120 1.25 fvdl NFSPROC_CREATE, 121 1.25 fvdl NFSPROC_REMOVE, 122 1.25 fvdl NFSPROC_RENAME, 123 1.25 fvdl NFSPROC_LINK, 124 1.25 fvdl NFSPROC_SYMLINK, 125 1.25 fvdl NFSPROC_MKDIR, 126 1.25 fvdl NFSPROC_RMDIR, 127 1.25 fvdl NFSPROC_READDIR, 128 1.25 fvdl NFSPROC_FSSTAT, 129 1.25 fvdl NFSPROC_NOOP, 130 1.25 fvdl NFSPROC_NOOP, 131 1.25 fvdl NFSPROC_NOOP, 132 1.25 fvdl NFSPROC_NOOP, 133 1.25 fvdl NFSPROC_NOOP, 134 1.25 fvdl NFSPROC_NOOP, 135 1.25 fvdl NFSPROC_NOOP, 136 1.25 fvdl NFSPROC_NOOP 137 1.25 fvdl }; 138 1.25 fvdl 139 1.25 fvdl /* 140 1.25 fvdl * and the reverse mapping from generic to Version 2 procedure numbers 141 1.25 fvdl */ 142 1.25 fvdl int nfsv2_procid[NFS_NPROCS] = { 143 1.25 fvdl NFSV2PROC_NULL, 144 1.25 fvdl NFSV2PROC_GETATTR, 145 1.25 fvdl NFSV2PROC_SETATTR, 146 1.25 fvdl NFSV2PROC_LOOKUP, 147 1.25 fvdl NFSV2PROC_NOOP, 148 1.25 fvdl NFSV2PROC_READLINK, 149 1.25 fvdl NFSV2PROC_READ, 150 1.25 fvdl NFSV2PROC_WRITE, 151 1.25 fvdl NFSV2PROC_CREATE, 152 1.25 fvdl NFSV2PROC_MKDIR, 153 1.25 fvdl NFSV2PROC_SYMLINK, 154 1.25 fvdl NFSV2PROC_CREATE, 155 1.25 fvdl NFSV2PROC_REMOVE, 156 1.25 fvdl NFSV2PROC_RMDIR, 157 1.25 fvdl NFSV2PROC_RENAME, 158 1.25 fvdl NFSV2PROC_LINK, 159 1.25 fvdl NFSV2PROC_READDIR, 160 1.25 fvdl NFSV2PROC_NOOP, 161 1.25 fvdl NFSV2PROC_STATFS, 162 1.25 fvdl NFSV2PROC_NOOP, 163 1.25 fvdl NFSV2PROC_NOOP, 164 1.25 fvdl NFSV2PROC_NOOP, 165 1.25 fvdl NFSV2PROC_NOOP, 166 1.25 fvdl NFSV2PROC_NOOP, 167 1.25 fvdl NFSV2PROC_NOOP, 168 1.25 fvdl NFSV2PROC_NOOP, 169 1.25 fvdl }; 170 1.25 fvdl 171 1.25 fvdl /* 172 1.25 fvdl * Maps errno values to nfs error numbers. 173 1.25 fvdl * Use NFSERR_IO as the catch all for ones not specifically defined in 174 1.25 fvdl * RFC 1094. 175 1.25 fvdl */ 176 1.25 fvdl static u_char nfsrv_v2errmap[ELAST] = { 177 1.25 fvdl NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO, 178 1.25 fvdl NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 179 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO, 180 1.25 fvdl NFSERR_IO, NFSERR_EXIST, NFSERR_IO, NFSERR_NODEV, NFSERR_NOTDIR, 181 1.25 fvdl NFSERR_ISDIR, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 182 1.25 fvdl NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS, 183 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 184 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 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, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 188 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 189 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO, 190 1.25 fvdl NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE, 191 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 192 1.25 fvdl NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, 193 1.25 fvdl NFSERR_IO, 194 1.25 fvdl }; 195 1.25 fvdl 196 1.25 fvdl /* 197 1.25 fvdl * Maps errno values to nfs error numbers. 198 1.25 fvdl * Although it is not obvious whether or not NFS clients really care if 199 1.25 fvdl * a returned error value is in the specified list for the procedure, the 200 1.25 fvdl * safest thing to do is filter them appropriately. For Version 2, the 201 1.25 fvdl * X/Open XNFS document is the only specification that defines error values 202 1.25 fvdl * for each RPC (The RFC simply lists all possible error values for all RPCs), 203 1.25 fvdl * so I have decided to not do this for Version 2. 204 1.25 fvdl * The first entry is the default error return and the rest are the valid 205 1.25 fvdl * errors for that RPC in increasing numeric order. 206 1.25 fvdl */ 207 1.25 fvdl static short nfsv3err_null[] = { 208 1.25 fvdl 0, 209 1.25 fvdl 0, 210 1.25 fvdl }; 211 1.25 fvdl 212 1.25 fvdl static short nfsv3err_getattr[] = { 213 1.25 fvdl NFSERR_IO, 214 1.25 fvdl NFSERR_IO, 215 1.25 fvdl NFSERR_STALE, 216 1.25 fvdl NFSERR_BADHANDLE, 217 1.25 fvdl NFSERR_SERVERFAULT, 218 1.25 fvdl 0, 219 1.25 fvdl }; 220 1.25 fvdl 221 1.25 fvdl static short nfsv3err_setattr[] = { 222 1.25 fvdl NFSERR_IO, 223 1.25 fvdl NFSERR_PERM, 224 1.25 fvdl NFSERR_IO, 225 1.25 fvdl NFSERR_ACCES, 226 1.25 fvdl NFSERR_INVAL, 227 1.25 fvdl NFSERR_NOSPC, 228 1.25 fvdl NFSERR_ROFS, 229 1.25 fvdl NFSERR_DQUOT, 230 1.25 fvdl NFSERR_STALE, 231 1.25 fvdl NFSERR_BADHANDLE, 232 1.25 fvdl NFSERR_NOT_SYNC, 233 1.25 fvdl NFSERR_SERVERFAULT, 234 1.25 fvdl 0, 235 1.25 fvdl }; 236 1.25 fvdl 237 1.25 fvdl static short nfsv3err_lookup[] = { 238 1.25 fvdl NFSERR_IO, 239 1.25 fvdl NFSERR_NOENT, 240 1.25 fvdl NFSERR_IO, 241 1.25 fvdl NFSERR_ACCES, 242 1.25 fvdl NFSERR_NOTDIR, 243 1.25 fvdl NFSERR_NAMETOL, 244 1.25 fvdl NFSERR_STALE, 245 1.25 fvdl NFSERR_BADHANDLE, 246 1.25 fvdl NFSERR_SERVERFAULT, 247 1.25 fvdl 0, 248 1.25 fvdl }; 249 1.25 fvdl 250 1.25 fvdl static short nfsv3err_access[] = { 251 1.25 fvdl NFSERR_IO, 252 1.25 fvdl NFSERR_IO, 253 1.25 fvdl NFSERR_STALE, 254 1.25 fvdl NFSERR_BADHANDLE, 255 1.25 fvdl NFSERR_SERVERFAULT, 256 1.25 fvdl 0, 257 1.25 fvdl }; 258 1.25 fvdl 259 1.25 fvdl static short nfsv3err_readlink[] = { 260 1.25 fvdl NFSERR_IO, 261 1.25 fvdl NFSERR_IO, 262 1.25 fvdl NFSERR_ACCES, 263 1.25 fvdl NFSERR_INVAL, 264 1.25 fvdl NFSERR_STALE, 265 1.25 fvdl NFSERR_BADHANDLE, 266 1.25 fvdl NFSERR_NOTSUPP, 267 1.25 fvdl NFSERR_SERVERFAULT, 268 1.25 fvdl 0, 269 1.25 fvdl }; 270 1.25 fvdl 271 1.25 fvdl static short nfsv3err_read[] = { 272 1.25 fvdl NFSERR_IO, 273 1.25 fvdl NFSERR_IO, 274 1.25 fvdl NFSERR_NXIO, 275 1.25 fvdl NFSERR_ACCES, 276 1.25 fvdl NFSERR_INVAL, 277 1.25 fvdl NFSERR_STALE, 278 1.25 fvdl NFSERR_BADHANDLE, 279 1.25 fvdl NFSERR_SERVERFAULT, 280 1.25 fvdl 0, 281 1.25 fvdl }; 282 1.25 fvdl 283 1.25 fvdl static short nfsv3err_write[] = { 284 1.25 fvdl NFSERR_IO, 285 1.25 fvdl NFSERR_IO, 286 1.25 fvdl NFSERR_ACCES, 287 1.25 fvdl NFSERR_INVAL, 288 1.25 fvdl NFSERR_FBIG, 289 1.25 fvdl NFSERR_NOSPC, 290 1.25 fvdl NFSERR_ROFS, 291 1.25 fvdl NFSERR_DQUOT, 292 1.25 fvdl NFSERR_STALE, 293 1.25 fvdl NFSERR_BADHANDLE, 294 1.25 fvdl NFSERR_SERVERFAULT, 295 1.25 fvdl 0, 296 1.25 fvdl }; 297 1.25 fvdl 298 1.25 fvdl static short nfsv3err_create[] = { 299 1.25 fvdl NFSERR_IO, 300 1.25 fvdl NFSERR_IO, 301 1.25 fvdl NFSERR_ACCES, 302 1.25 fvdl NFSERR_EXIST, 303 1.25 fvdl NFSERR_NOTDIR, 304 1.25 fvdl NFSERR_NOSPC, 305 1.25 fvdl NFSERR_ROFS, 306 1.25 fvdl NFSERR_NAMETOL, 307 1.25 fvdl NFSERR_DQUOT, 308 1.25 fvdl NFSERR_STALE, 309 1.25 fvdl NFSERR_BADHANDLE, 310 1.25 fvdl NFSERR_NOTSUPP, 311 1.25 fvdl NFSERR_SERVERFAULT, 312 1.25 fvdl 0, 313 1.25 fvdl }; 314 1.25 fvdl 315 1.25 fvdl static short nfsv3err_mkdir[] = { 316 1.25 fvdl NFSERR_IO, 317 1.25 fvdl NFSERR_IO, 318 1.25 fvdl NFSERR_ACCES, 319 1.25 fvdl NFSERR_EXIST, 320 1.25 fvdl NFSERR_NOTDIR, 321 1.25 fvdl NFSERR_NOSPC, 322 1.25 fvdl NFSERR_ROFS, 323 1.25 fvdl NFSERR_NAMETOL, 324 1.25 fvdl NFSERR_DQUOT, 325 1.25 fvdl NFSERR_STALE, 326 1.25 fvdl NFSERR_BADHANDLE, 327 1.25 fvdl NFSERR_NOTSUPP, 328 1.25 fvdl NFSERR_SERVERFAULT, 329 1.25 fvdl 0, 330 1.25 fvdl }; 331 1.25 fvdl 332 1.25 fvdl static short nfsv3err_symlink[] = { 333 1.25 fvdl NFSERR_IO, 334 1.25 fvdl NFSERR_IO, 335 1.25 fvdl NFSERR_ACCES, 336 1.25 fvdl NFSERR_EXIST, 337 1.25 fvdl NFSERR_NOTDIR, 338 1.25 fvdl NFSERR_NOSPC, 339 1.25 fvdl NFSERR_ROFS, 340 1.25 fvdl NFSERR_NAMETOL, 341 1.25 fvdl NFSERR_DQUOT, 342 1.25 fvdl NFSERR_STALE, 343 1.25 fvdl NFSERR_BADHANDLE, 344 1.25 fvdl NFSERR_NOTSUPP, 345 1.25 fvdl NFSERR_SERVERFAULT, 346 1.25 fvdl 0, 347 1.25 fvdl }; 348 1.25 fvdl 349 1.25 fvdl static short nfsv3err_mknod[] = { 350 1.25 fvdl NFSERR_IO, 351 1.25 fvdl NFSERR_IO, 352 1.25 fvdl NFSERR_ACCES, 353 1.25 fvdl NFSERR_EXIST, 354 1.25 fvdl NFSERR_NOTDIR, 355 1.25 fvdl NFSERR_NOSPC, 356 1.25 fvdl NFSERR_ROFS, 357 1.25 fvdl NFSERR_NAMETOL, 358 1.25 fvdl NFSERR_DQUOT, 359 1.25 fvdl NFSERR_STALE, 360 1.25 fvdl NFSERR_BADHANDLE, 361 1.25 fvdl NFSERR_NOTSUPP, 362 1.25 fvdl NFSERR_SERVERFAULT, 363 1.25 fvdl NFSERR_BADTYPE, 364 1.25 fvdl 0, 365 1.25 fvdl }; 366 1.25 fvdl 367 1.25 fvdl static short nfsv3err_remove[] = { 368 1.25 fvdl NFSERR_IO, 369 1.25 fvdl NFSERR_NOENT, 370 1.25 fvdl NFSERR_IO, 371 1.25 fvdl NFSERR_ACCES, 372 1.25 fvdl NFSERR_NOTDIR, 373 1.25 fvdl NFSERR_ROFS, 374 1.25 fvdl NFSERR_NAMETOL, 375 1.25 fvdl NFSERR_STALE, 376 1.25 fvdl NFSERR_BADHANDLE, 377 1.25 fvdl NFSERR_SERVERFAULT, 378 1.25 fvdl 0, 379 1.25 fvdl }; 380 1.25 fvdl 381 1.25 fvdl static short nfsv3err_rmdir[] = { 382 1.25 fvdl NFSERR_IO, 383 1.25 fvdl NFSERR_NOENT, 384 1.25 fvdl NFSERR_IO, 385 1.25 fvdl NFSERR_ACCES, 386 1.25 fvdl NFSERR_EXIST, 387 1.25 fvdl NFSERR_NOTDIR, 388 1.25 fvdl NFSERR_INVAL, 389 1.25 fvdl NFSERR_ROFS, 390 1.25 fvdl NFSERR_NAMETOL, 391 1.25 fvdl NFSERR_NOTEMPTY, 392 1.25 fvdl NFSERR_STALE, 393 1.25 fvdl NFSERR_BADHANDLE, 394 1.25 fvdl NFSERR_NOTSUPP, 395 1.25 fvdl NFSERR_SERVERFAULT, 396 1.25 fvdl 0, 397 1.25 fvdl }; 398 1.25 fvdl 399 1.25 fvdl static short nfsv3err_rename[] = { 400 1.25 fvdl NFSERR_IO, 401 1.25 fvdl NFSERR_NOENT, 402 1.25 fvdl NFSERR_IO, 403 1.25 fvdl NFSERR_ACCES, 404 1.25 fvdl NFSERR_EXIST, 405 1.25 fvdl NFSERR_XDEV, 406 1.25 fvdl NFSERR_NOTDIR, 407 1.25 fvdl NFSERR_ISDIR, 408 1.25 fvdl NFSERR_INVAL, 409 1.25 fvdl NFSERR_NOSPC, 410 1.25 fvdl NFSERR_ROFS, 411 1.25 fvdl NFSERR_MLINK, 412 1.25 fvdl NFSERR_NAMETOL, 413 1.25 fvdl NFSERR_NOTEMPTY, 414 1.25 fvdl NFSERR_DQUOT, 415 1.25 fvdl NFSERR_STALE, 416 1.25 fvdl NFSERR_BADHANDLE, 417 1.25 fvdl NFSERR_NOTSUPP, 418 1.25 fvdl NFSERR_SERVERFAULT, 419 1.25 fvdl 0, 420 1.25 fvdl }; 421 1.25 fvdl 422 1.25 fvdl static short nfsv3err_link[] = { 423 1.25 fvdl NFSERR_IO, 424 1.25 fvdl NFSERR_IO, 425 1.25 fvdl NFSERR_ACCES, 426 1.25 fvdl NFSERR_EXIST, 427 1.25 fvdl NFSERR_XDEV, 428 1.25 fvdl NFSERR_NOTDIR, 429 1.25 fvdl NFSERR_INVAL, 430 1.25 fvdl NFSERR_NOSPC, 431 1.25 fvdl NFSERR_ROFS, 432 1.25 fvdl NFSERR_MLINK, 433 1.25 fvdl NFSERR_NAMETOL, 434 1.25 fvdl NFSERR_DQUOT, 435 1.25 fvdl NFSERR_STALE, 436 1.25 fvdl NFSERR_BADHANDLE, 437 1.25 fvdl NFSERR_NOTSUPP, 438 1.25 fvdl NFSERR_SERVERFAULT, 439 1.25 fvdl 0, 440 1.25 fvdl }; 441 1.25 fvdl 442 1.25 fvdl static short nfsv3err_readdir[] = { 443 1.25 fvdl NFSERR_IO, 444 1.25 fvdl NFSERR_IO, 445 1.25 fvdl NFSERR_ACCES, 446 1.25 fvdl NFSERR_NOTDIR, 447 1.25 fvdl NFSERR_STALE, 448 1.25 fvdl NFSERR_BADHANDLE, 449 1.25 fvdl NFSERR_BAD_COOKIE, 450 1.25 fvdl NFSERR_TOOSMALL, 451 1.25 fvdl NFSERR_SERVERFAULT, 452 1.25 fvdl 0, 453 1.25 fvdl }; 454 1.25 fvdl 455 1.25 fvdl static short nfsv3err_readdirplus[] = { 456 1.25 fvdl NFSERR_IO, 457 1.25 fvdl NFSERR_IO, 458 1.25 fvdl NFSERR_ACCES, 459 1.25 fvdl NFSERR_NOTDIR, 460 1.25 fvdl NFSERR_STALE, 461 1.25 fvdl NFSERR_BADHANDLE, 462 1.25 fvdl NFSERR_BAD_COOKIE, 463 1.25 fvdl NFSERR_NOTSUPP, 464 1.25 fvdl NFSERR_TOOSMALL, 465 1.25 fvdl NFSERR_SERVERFAULT, 466 1.25 fvdl 0, 467 1.25 fvdl }; 468 1.25 fvdl 469 1.25 fvdl static short nfsv3err_fsstat[] = { 470 1.25 fvdl NFSERR_IO, 471 1.25 fvdl NFSERR_IO, 472 1.25 fvdl NFSERR_STALE, 473 1.25 fvdl NFSERR_BADHANDLE, 474 1.25 fvdl NFSERR_SERVERFAULT, 475 1.25 fvdl 0, 476 1.25 fvdl }; 477 1.25 fvdl 478 1.25 fvdl static short nfsv3err_fsinfo[] = { 479 1.25 fvdl NFSERR_STALE, 480 1.25 fvdl NFSERR_STALE, 481 1.25 fvdl NFSERR_BADHANDLE, 482 1.25 fvdl NFSERR_SERVERFAULT, 483 1.25 fvdl 0, 484 1.25 fvdl }; 485 1.25 fvdl 486 1.25 fvdl static short nfsv3err_pathconf[] = { 487 1.25 fvdl NFSERR_STALE, 488 1.25 fvdl NFSERR_STALE, 489 1.25 fvdl NFSERR_BADHANDLE, 490 1.25 fvdl NFSERR_SERVERFAULT, 491 1.25 fvdl 0, 492 1.25 fvdl }; 493 1.25 fvdl 494 1.25 fvdl static short nfsv3err_commit[] = { 495 1.25 fvdl NFSERR_IO, 496 1.25 fvdl NFSERR_IO, 497 1.25 fvdl NFSERR_STALE, 498 1.25 fvdl NFSERR_BADHANDLE, 499 1.25 fvdl NFSERR_SERVERFAULT, 500 1.25 fvdl 0, 501 1.25 fvdl }; 502 1.25 fvdl 503 1.25 fvdl static short *nfsrv_v3errmap[] = { 504 1.25 fvdl nfsv3err_null, 505 1.25 fvdl nfsv3err_getattr, 506 1.25 fvdl nfsv3err_setattr, 507 1.25 fvdl nfsv3err_lookup, 508 1.25 fvdl nfsv3err_access, 509 1.25 fvdl nfsv3err_readlink, 510 1.25 fvdl nfsv3err_read, 511 1.25 fvdl nfsv3err_write, 512 1.25 fvdl nfsv3err_create, 513 1.25 fvdl nfsv3err_mkdir, 514 1.25 fvdl nfsv3err_symlink, 515 1.25 fvdl nfsv3err_mknod, 516 1.25 fvdl nfsv3err_remove, 517 1.25 fvdl nfsv3err_rmdir, 518 1.25 fvdl nfsv3err_rename, 519 1.25 fvdl nfsv3err_link, 520 1.25 fvdl nfsv3err_readdir, 521 1.25 fvdl nfsv3err_readdirplus, 522 1.25 fvdl nfsv3err_fsstat, 523 1.25 fvdl nfsv3err_fsinfo, 524 1.25 fvdl nfsv3err_pathconf, 525 1.25 fvdl nfsv3err_commit, 526 1.25 fvdl }; 527 1.25 fvdl 528 1.12 mycroft extern struct nfsrtt nfsrtt; 529 1.12 mycroft extern time_t nqnfsstarttime; 530 1.12 mycroft extern int nqsrv_clockskew; 531 1.12 mycroft extern int nqsrv_writeslack; 532 1.12 mycroft extern int nqsrv_maxlease; 533 1.25 fvdl extern int nqnfs_piggy[NFS_NPROCS]; 534 1.25 fvdl extern nfstype nfsv2_type[9]; 535 1.25 fvdl extern nfstype nfsv3_type[9]; 536 1.25 fvdl extern struct nfsnodehashhead *nfsnodehashtbl; 537 1.25 fvdl extern u_long nfsnodehash; 538 1.1 cgd 539 1.18 mycroft LIST_HEAD(nfsnodehashhead, nfsnode); 540 1.18 mycroft 541 1.43 fvdl int nfs_webnamei __P((struct nameidata *, struct vnode *, struct proc *)); 542 1.43 fvdl 543 1.1 cgd /* 544 1.1 cgd * Create the header for an rpc request packet 545 1.1 cgd * The hsiz is the size of the rest of the nfs request header. 546 1.1 cgd * (just used to decide if a cluster is a good idea) 547 1.1 cgd */ 548 1.12 mycroft struct mbuf * 549 1.12 mycroft nfsm_reqh(vp, procid, hsiz, bposp) 550 1.12 mycroft struct vnode *vp; 551 1.1 cgd u_long procid; 552 1.1 cgd int hsiz; 553 1.12 mycroft caddr_t *bposp; 554 1.12 mycroft { 555 1.12 mycroft register struct mbuf *mb; 556 1.22 cgd register u_int32_t *tl; 557 1.12 mycroft register caddr_t bpos; 558 1.12 mycroft struct mbuf *mb2; 559 1.12 mycroft struct nfsmount *nmp; 560 1.12 mycroft int nqflag; 561 1.12 mycroft 562 1.12 mycroft MGET(mb, M_WAIT, MT_DATA); 563 1.12 mycroft if (hsiz >= MINCLSIZE) 564 1.12 mycroft MCLGET(mb, M_WAIT); 565 1.12 mycroft mb->m_len = 0; 566 1.12 mycroft bpos = mtod(mb, caddr_t); 567 1.12 mycroft 568 1.12 mycroft /* 569 1.12 mycroft * For NQNFS, add lease request. 570 1.12 mycroft */ 571 1.12 mycroft if (vp) { 572 1.12 mycroft nmp = VFSTONFS(vp->v_mount); 573 1.12 mycroft if (nmp->nm_flag & NFSMNT_NQNFS) { 574 1.12 mycroft nqflag = NQNFS_NEEDLEASE(vp, procid); 575 1.12 mycroft if (nqflag) { 576 1.22 cgd nfsm_build(tl, u_int32_t *, 2*NFSX_UNSIGNED); 577 1.12 mycroft *tl++ = txdr_unsigned(nqflag); 578 1.12 mycroft *tl = txdr_unsigned(nmp->nm_leaseterm); 579 1.12 mycroft } else { 580 1.22 cgd nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 581 1.12 mycroft *tl = 0; 582 1.12 mycroft } 583 1.12 mycroft } 584 1.12 mycroft } 585 1.12 mycroft /* Finally, return values */ 586 1.12 mycroft *bposp = bpos; 587 1.12 mycroft return (mb); 588 1.12 mycroft } 589 1.12 mycroft 590 1.12 mycroft /* 591 1.12 mycroft * Build the RPC header and fill in the authorization info. 592 1.12 mycroft * The authorization string argument is only used when the credentials 593 1.12 mycroft * come from outside of the kernel. 594 1.12 mycroft * Returns the head of the mbuf list. 595 1.12 mycroft */ 596 1.12 mycroft struct mbuf * 597 1.25 fvdl nfsm_rpchead(cr, nmflag, procid, auth_type, auth_len, auth_str, verf_len, 598 1.25 fvdl verf_str, mrest, mrest_len, mbp, xidp) 599 1.12 mycroft register struct ucred *cr; 600 1.25 fvdl int nmflag; 601 1.12 mycroft int procid; 602 1.12 mycroft int auth_type; 603 1.12 mycroft int auth_len; 604 1.12 mycroft char *auth_str; 605 1.25 fvdl int verf_len; 606 1.25 fvdl char *verf_str; 607 1.12 mycroft struct mbuf *mrest; 608 1.12 mycroft int mrest_len; 609 1.12 mycroft struct mbuf **mbp; 610 1.22 cgd u_int32_t *xidp; 611 1.1 cgd { 612 1.12 mycroft register struct mbuf *mb; 613 1.22 cgd register u_int32_t *tl; 614 1.12 mycroft register caddr_t bpos; 615 1.12 mycroft register int i; 616 1.12 mycroft struct mbuf *mreq, *mb2; 617 1.12 mycroft int siz, grpsiz, authsiz; 618 1.30 fvdl struct timeval tv; 619 1.30 fvdl static u_int32_t base; 620 1.1 cgd 621 1.12 mycroft authsiz = nfsm_rndup(auth_len); 622 1.12 mycroft MGETHDR(mb, M_WAIT, MT_DATA); 623 1.25 fvdl if ((authsiz + 10 * NFSX_UNSIGNED) >= MINCLSIZE) { 624 1.12 mycroft MCLGET(mb, M_WAIT); 625 1.25 fvdl } else if ((authsiz + 10 * NFSX_UNSIGNED) < MHLEN) { 626 1.25 fvdl MH_ALIGN(mb, authsiz + 10 * NFSX_UNSIGNED); 627 1.12 mycroft } else { 628 1.25 fvdl MH_ALIGN(mb, 8 * NFSX_UNSIGNED); 629 1.1 cgd } 630 1.12 mycroft mb->m_len = 0; 631 1.12 mycroft mreq = mb; 632 1.12 mycroft bpos = mtod(mb, caddr_t); 633 1.12 mycroft 634 1.12 mycroft /* 635 1.12 mycroft * First the RPC header. 636 1.12 mycroft */ 637 1.25 fvdl nfsm_build(tl, u_int32_t *, 8 * NFSX_UNSIGNED); 638 1.30 fvdl 639 1.30 fvdl /* 640 1.30 fvdl * derive initial xid from system time 641 1.30 fvdl * XXX time is invalid if root not yet mounted 642 1.30 fvdl */ 643 1.30 fvdl if (!base && (rootvp)) { 644 1.30 fvdl microtime(&tv); 645 1.30 fvdl base = tv.tv_sec << 12; 646 1.30 fvdl nfs_xid = base; 647 1.30 fvdl } 648 1.30 fvdl /* 649 1.30 fvdl * Skip zero xid if it should ever happen. 650 1.30 fvdl */ 651 1.12 mycroft if (++nfs_xid == 0) 652 1.12 mycroft nfs_xid++; 653 1.30 fvdl 654 1.12 mycroft *tl++ = *xidp = txdr_unsigned(nfs_xid); 655 1.1 cgd *tl++ = rpc_call; 656 1.1 cgd *tl++ = rpc_vers; 657 1.25 fvdl if (nmflag & NFSMNT_NQNFS) { 658 1.12 mycroft *tl++ = txdr_unsigned(NQNFS_PROG); 659 1.25 fvdl *tl++ = txdr_unsigned(NQNFS_VER3); 660 1.1 cgd } else { 661 1.12 mycroft *tl++ = txdr_unsigned(NFS_PROG); 662 1.25 fvdl if (nmflag & NFSMNT_NFSV3) 663 1.25 fvdl *tl++ = txdr_unsigned(NFS_VER3); 664 1.25 fvdl else 665 1.25 fvdl *tl++ = txdr_unsigned(NFS_VER2); 666 1.1 cgd } 667 1.25 fvdl if (nmflag & NFSMNT_NFSV3) 668 1.25 fvdl *tl++ = txdr_unsigned(procid); 669 1.25 fvdl else 670 1.25 fvdl *tl++ = txdr_unsigned(nfsv2_procid[procid]); 671 1.12 mycroft 672 1.12 mycroft /* 673 1.12 mycroft * And then the authorization cred. 674 1.12 mycroft */ 675 1.12 mycroft *tl++ = txdr_unsigned(auth_type); 676 1.12 mycroft *tl = txdr_unsigned(authsiz); 677 1.12 mycroft switch (auth_type) { 678 1.12 mycroft case RPCAUTH_UNIX: 679 1.22 cgd nfsm_build(tl, u_int32_t *, auth_len); 680 1.12 mycroft *tl++ = 0; /* stamp ?? */ 681 1.12 mycroft *tl++ = 0; /* NULL hostname */ 682 1.12 mycroft *tl++ = txdr_unsigned(cr->cr_uid); 683 1.19 jtc *tl++ = txdr_unsigned(cr->cr_gid); 684 1.12 mycroft grpsiz = (auth_len >> 2) - 5; 685 1.12 mycroft *tl++ = txdr_unsigned(grpsiz); 686 1.20 mycroft for (i = 0; i < grpsiz; i++) 687 1.12 mycroft *tl++ = txdr_unsigned(cr->cr_groups[i]); 688 1.12 mycroft break; 689 1.25 fvdl case RPCAUTH_KERB4: 690 1.12 mycroft siz = auth_len; 691 1.12 mycroft while (siz > 0) { 692 1.12 mycroft if (M_TRAILINGSPACE(mb) == 0) { 693 1.12 mycroft MGET(mb2, M_WAIT, MT_DATA); 694 1.12 mycroft if (siz >= MINCLSIZE) 695 1.12 mycroft MCLGET(mb2, M_WAIT); 696 1.12 mycroft mb->m_next = mb2; 697 1.12 mycroft mb = mb2; 698 1.12 mycroft mb->m_len = 0; 699 1.12 mycroft bpos = mtod(mb, caddr_t); 700 1.12 mycroft } 701 1.12 mycroft i = min(siz, M_TRAILINGSPACE(mb)); 702 1.12 mycroft bcopy(auth_str, bpos, i); 703 1.12 mycroft mb->m_len += i; 704 1.12 mycroft auth_str += i; 705 1.12 mycroft bpos += i; 706 1.12 mycroft siz -= i; 707 1.12 mycroft } 708 1.12 mycroft if ((siz = (nfsm_rndup(auth_len) - auth_len)) > 0) { 709 1.12 mycroft for (i = 0; i < siz; i++) 710 1.12 mycroft *bpos++ = '\0'; 711 1.12 mycroft mb->m_len += siz; 712 1.12 mycroft } 713 1.12 mycroft break; 714 1.12 mycroft }; 715 1.25 fvdl 716 1.25 fvdl /* 717 1.25 fvdl * And the verifier... 718 1.25 fvdl */ 719 1.25 fvdl nfsm_build(tl, u_int32_t *, 2 * NFSX_UNSIGNED); 720 1.25 fvdl if (verf_str) { 721 1.25 fvdl *tl++ = txdr_unsigned(RPCAUTH_KERB4); 722 1.25 fvdl *tl = txdr_unsigned(verf_len); 723 1.25 fvdl siz = verf_len; 724 1.25 fvdl while (siz > 0) { 725 1.25 fvdl if (M_TRAILINGSPACE(mb) == 0) { 726 1.25 fvdl MGET(mb2, M_WAIT, MT_DATA); 727 1.25 fvdl if (siz >= MINCLSIZE) 728 1.25 fvdl MCLGET(mb2, M_WAIT); 729 1.25 fvdl mb->m_next = mb2; 730 1.25 fvdl mb = mb2; 731 1.25 fvdl mb->m_len = 0; 732 1.25 fvdl bpos = mtod(mb, caddr_t); 733 1.25 fvdl } 734 1.25 fvdl i = min(siz, M_TRAILINGSPACE(mb)); 735 1.25 fvdl bcopy(verf_str, bpos, i); 736 1.25 fvdl mb->m_len += i; 737 1.25 fvdl verf_str += i; 738 1.25 fvdl bpos += i; 739 1.25 fvdl siz -= i; 740 1.25 fvdl } 741 1.25 fvdl if ((siz = (nfsm_rndup(verf_len) - verf_len)) > 0) { 742 1.25 fvdl for (i = 0; i < siz; i++) 743 1.25 fvdl *bpos++ = '\0'; 744 1.25 fvdl mb->m_len += siz; 745 1.25 fvdl } 746 1.25 fvdl } else { 747 1.25 fvdl *tl++ = txdr_unsigned(RPCAUTH_NULL); 748 1.25 fvdl *tl = 0; 749 1.25 fvdl } 750 1.12 mycroft mb->m_next = mrest; 751 1.25 fvdl mreq->m_pkthdr.len = authsiz + 10 * NFSX_UNSIGNED + mrest_len; 752 1.12 mycroft mreq->m_pkthdr.rcvif = (struct ifnet *)0; 753 1.12 mycroft *mbp = mb; 754 1.1 cgd return (mreq); 755 1.1 cgd } 756 1.1 cgd 757 1.1 cgd /* 758 1.1 cgd * copies mbuf chain to the uio scatter/gather list 759 1.1 cgd */ 760 1.24 christos int 761 1.1 cgd nfsm_mbuftouio(mrep, uiop, siz, dpos) 762 1.1 cgd struct mbuf **mrep; 763 1.1 cgd register struct uio *uiop; 764 1.1 cgd int siz; 765 1.1 cgd caddr_t *dpos; 766 1.1 cgd { 767 1.1 cgd register char *mbufcp, *uiocp; 768 1.1 cgd register int xfer, left, len; 769 1.1 cgd register struct mbuf *mp; 770 1.1 cgd long uiosiz, rem; 771 1.1 cgd int error = 0; 772 1.1 cgd 773 1.1 cgd mp = *mrep; 774 1.1 cgd mbufcp = *dpos; 775 1.1 cgd len = mtod(mp, caddr_t)+mp->m_len-mbufcp; 776 1.1 cgd rem = nfsm_rndup(siz)-siz; 777 1.1 cgd while (siz > 0) { 778 1.1 cgd if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) 779 1.1 cgd return (EFBIG); 780 1.1 cgd left = uiop->uio_iov->iov_len; 781 1.1 cgd uiocp = uiop->uio_iov->iov_base; 782 1.1 cgd if (left > siz) 783 1.1 cgd left = siz; 784 1.1 cgd uiosiz = left; 785 1.1 cgd while (left > 0) { 786 1.1 cgd while (len == 0) { 787 1.1 cgd mp = mp->m_next; 788 1.1 cgd if (mp == NULL) 789 1.1 cgd return (EBADRPC); 790 1.1 cgd mbufcp = mtod(mp, caddr_t); 791 1.1 cgd len = mp->m_len; 792 1.1 cgd } 793 1.1 cgd xfer = (left > len) ? len : left; 794 1.1 cgd #ifdef notdef 795 1.1 cgd /* Not Yet.. */ 796 1.1 cgd if (uiop->uio_iov->iov_op != NULL) 797 1.1 cgd (*(uiop->uio_iov->iov_op)) 798 1.1 cgd (mbufcp, uiocp, xfer); 799 1.1 cgd else 800 1.1 cgd #endif 801 1.1 cgd if (uiop->uio_segflg == UIO_SYSSPACE) 802 1.1 cgd bcopy(mbufcp, uiocp, xfer); 803 1.1 cgd else 804 1.1 cgd copyout(mbufcp, uiocp, xfer); 805 1.1 cgd left -= xfer; 806 1.1 cgd len -= xfer; 807 1.1 cgd mbufcp += xfer; 808 1.1 cgd uiocp += xfer; 809 1.1 cgd uiop->uio_offset += xfer; 810 1.1 cgd uiop->uio_resid -= xfer; 811 1.1 cgd } 812 1.1 cgd if (uiop->uio_iov->iov_len <= siz) { 813 1.1 cgd uiop->uio_iovcnt--; 814 1.1 cgd uiop->uio_iov++; 815 1.1 cgd } else { 816 1.1 cgd uiop->uio_iov->iov_base += uiosiz; 817 1.1 cgd uiop->uio_iov->iov_len -= uiosiz; 818 1.1 cgd } 819 1.1 cgd siz -= uiosiz; 820 1.1 cgd } 821 1.1 cgd *dpos = mbufcp; 822 1.1 cgd *mrep = mp; 823 1.1 cgd if (rem > 0) { 824 1.1 cgd if (len < rem) 825 1.1 cgd error = nfs_adv(mrep, dpos, rem, len); 826 1.1 cgd else 827 1.1 cgd *dpos += rem; 828 1.1 cgd } 829 1.1 cgd return (error); 830 1.1 cgd } 831 1.1 cgd 832 1.1 cgd /* 833 1.29 fvdl * copies a uio scatter/gather list to an mbuf chain. 834 1.29 fvdl * NOTE: can ony handle iovcnt == 1 835 1.1 cgd */ 836 1.24 christos int 837 1.1 cgd nfsm_uiotombuf(uiop, mq, siz, bpos) 838 1.1 cgd register struct uio *uiop; 839 1.1 cgd struct mbuf **mq; 840 1.1 cgd int siz; 841 1.1 cgd caddr_t *bpos; 842 1.1 cgd { 843 1.1 cgd register char *uiocp; 844 1.1 cgd register struct mbuf *mp, *mp2; 845 1.12 mycroft register int xfer, left, mlen; 846 1.1 cgd int uiosiz, clflg, rem; 847 1.1 cgd char *cp; 848 1.1 cgd 849 1.29 fvdl #ifdef DIAGNOSTIC 850 1.29 fvdl if (uiop->uio_iovcnt != 1) 851 1.29 fvdl panic("nfsm_uiotombuf: iovcnt != 1"); 852 1.29 fvdl #endif 853 1.29 fvdl 854 1.1 cgd if (siz > MLEN) /* or should it >= MCLBYTES ?? */ 855 1.1 cgd clflg = 1; 856 1.1 cgd else 857 1.1 cgd clflg = 0; 858 1.1 cgd rem = nfsm_rndup(siz)-siz; 859 1.12 mycroft mp = mp2 = *mq; 860 1.1 cgd while (siz > 0) { 861 1.1 cgd left = uiop->uio_iov->iov_len; 862 1.1 cgd uiocp = uiop->uio_iov->iov_base; 863 1.1 cgd if (left > siz) 864 1.1 cgd left = siz; 865 1.1 cgd uiosiz = left; 866 1.1 cgd while (left > 0) { 867 1.12 mycroft mlen = M_TRAILINGSPACE(mp); 868 1.12 mycroft if (mlen == 0) { 869 1.12 mycroft MGET(mp, M_WAIT, MT_DATA); 870 1.12 mycroft if (clflg) 871 1.12 mycroft MCLGET(mp, M_WAIT); 872 1.12 mycroft mp->m_len = 0; 873 1.12 mycroft mp2->m_next = mp; 874 1.12 mycroft mp2 = mp; 875 1.12 mycroft mlen = M_TRAILINGSPACE(mp); 876 1.12 mycroft } 877 1.12 mycroft xfer = (left > mlen) ? mlen : left; 878 1.1 cgd #ifdef notdef 879 1.1 cgd /* Not Yet.. */ 880 1.1 cgd if (uiop->uio_iov->iov_op != NULL) 881 1.1 cgd (*(uiop->uio_iov->iov_op)) 882 1.12 mycroft (uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 883 1.1 cgd else 884 1.1 cgd #endif 885 1.1 cgd if (uiop->uio_segflg == UIO_SYSSPACE) 886 1.12 mycroft bcopy(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 887 1.1 cgd else 888 1.12 mycroft copyin(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); 889 1.12 mycroft mp->m_len += xfer; 890 1.1 cgd left -= xfer; 891 1.1 cgd uiocp += xfer; 892 1.1 cgd uiop->uio_offset += xfer; 893 1.1 cgd uiop->uio_resid -= xfer; 894 1.1 cgd } 895 1.29 fvdl uiop->uio_iov->iov_base += uiosiz; 896 1.29 fvdl uiop->uio_iov->iov_len -= uiosiz; 897 1.1 cgd siz -= uiosiz; 898 1.1 cgd } 899 1.1 cgd if (rem > 0) { 900 1.12 mycroft if (rem > M_TRAILINGSPACE(mp)) { 901 1.1 cgd MGET(mp, M_WAIT, MT_DATA); 902 1.1 cgd mp->m_len = 0; 903 1.1 cgd mp2->m_next = mp; 904 1.1 cgd } 905 1.1 cgd cp = mtod(mp, caddr_t)+mp->m_len; 906 1.1 cgd for (left = 0; left < rem; left++) 907 1.1 cgd *cp++ = '\0'; 908 1.1 cgd mp->m_len += rem; 909 1.1 cgd *bpos = cp; 910 1.1 cgd } else 911 1.1 cgd *bpos = mtod(mp, caddr_t)+mp->m_len; 912 1.1 cgd *mq = mp; 913 1.1 cgd return (0); 914 1.1 cgd } 915 1.1 cgd 916 1.1 cgd /* 917 1.39 fvdl * Get at least "siz" bytes of correctly aligned data. 918 1.39 fvdl * When called the mbuf pointers are not necessarily correct, 919 1.39 fvdl * dsosp points to what ought to be in m_data and left contains 920 1.39 fvdl * what ought to be in m_len. 921 1.12 mycroft * This is used by the macros nfsm_dissect and nfsm_dissecton for tough 922 1.1 cgd * cases. (The macros use the vars. dpos and dpos2) 923 1.1 cgd */ 924 1.24 christos int 925 1.12 mycroft nfsm_disct(mdp, dposp, siz, left, cp2) 926 1.1 cgd struct mbuf **mdp; 927 1.1 cgd caddr_t *dposp; 928 1.1 cgd int siz; 929 1.1 cgd int left; 930 1.1 cgd caddr_t *cp2; 931 1.1 cgd { 932 1.39 fvdl register struct mbuf *m1, *m2; 933 1.39 fvdl struct mbuf *havebuf = NULL; 934 1.39 fvdl caddr_t src = *dposp; 935 1.39 fvdl caddr_t dst; 936 1.39 fvdl int len; 937 1.39 fvdl 938 1.39 fvdl #ifdef DEBUG 939 1.39 fvdl if (left < 0) 940 1.39 fvdl panic("nfsm_disct: left < 0"); 941 1.39 fvdl #endif 942 1.39 fvdl m1 = *mdp; 943 1.39 fvdl /* 944 1.39 fvdl * Skip through the mbuf chain looking for an mbuf with 945 1.39 fvdl * some data. If the first mbuf found has enough data 946 1.39 fvdl * and it is correctly aligned return it. 947 1.39 fvdl */ 948 1.1 cgd while (left == 0) { 949 1.39 fvdl havebuf = m1; 950 1.39 fvdl *mdp = m1 = m1->m_next; 951 1.39 fvdl if (m1 == NULL) 952 1.1 cgd return (EBADRPC); 953 1.39 fvdl src = mtod(m1, caddr_t); 954 1.39 fvdl left = m1->m_len; 955 1.39 fvdl /* 956 1.39 fvdl * If we start a new mbuf and it is big enough 957 1.39 fvdl * and correctly aligned just return it, don't 958 1.39 fvdl * do any pull up. 959 1.39 fvdl */ 960 1.39 fvdl if (left >= siz && nfsm_aligned(src)) { 961 1.39 fvdl *cp2 = src; 962 1.39 fvdl *dposp = src + siz; 963 1.39 fvdl return (0); 964 1.39 fvdl } 965 1.1 cgd } 966 1.39 fvdl if (m1->m_flags & M_EXT) { 967 1.39 fvdl if (havebuf) { 968 1.39 fvdl /* If the first mbuf with data has external data 969 1.39 fvdl * and there is a previous empty mbuf use it 970 1.39 fvdl * to move the data into. 971 1.39 fvdl */ 972 1.39 fvdl m2 = m1; 973 1.39 fvdl *mdp = m1 = havebuf; 974 1.39 fvdl if (m1->m_flags & M_EXT) { 975 1.41 thorpej MEXTREMOVE(m1); 976 1.1 cgd } 977 1.39 fvdl } else { 978 1.39 fvdl /* 979 1.39 fvdl * If the first mbuf has a external data 980 1.39 fvdl * and there is no previous empty mbuf 981 1.39 fvdl * allocate a new mbuf and move the external 982 1.39 fvdl * data to the new mbuf. Also make the first 983 1.39 fvdl * mbuf look empty. 984 1.39 fvdl */ 985 1.39 fvdl m2 = m_get(M_WAIT, MT_DATA); 986 1.39 fvdl m2->m_ext = m1->m_ext; 987 1.39 fvdl m2->m_data = src; 988 1.39 fvdl m2->m_len = left; 989 1.41 thorpej MCLADDREFERENCE(m1, m2); 990 1.41 thorpej MEXTREMOVE(m1); 991 1.39 fvdl m2->m_next = m1->m_next; 992 1.39 fvdl m1->m_next = m2; 993 1.1 cgd } 994 1.39 fvdl m1->m_len = 0; 995 1.39 fvdl dst = m1->m_dat; 996 1.39 fvdl } else { 997 1.39 fvdl /* 998 1.39 fvdl * If the first mbuf has no external data 999 1.39 fvdl * move the data to the front of the mbuf. 1000 1.39 fvdl */ 1001 1.39 fvdl if ((dst = m1->m_dat) != src) 1002 1.39 fvdl ovbcopy(src, dst, left); 1003 1.39 fvdl dst += left; 1004 1.39 fvdl m1->m_len = left; 1005 1.39 fvdl m2 = m1->m_next; 1006 1.1 cgd } 1007 1.39 fvdl m1->m_flags &= ~M_PKTHDR; 1008 1.39 fvdl *cp2 = m1->m_data = m1->m_dat; /* data is at beginning of buffer */ 1009 1.39 fvdl *dposp = mtod(m1, caddr_t) + siz; 1010 1.39 fvdl /* 1011 1.39 fvdl * Loop through mbufs pulling data up into first mbuf until 1012 1.39 fvdl * the first mbuf is full or there is no more data to 1013 1.39 fvdl * pullup. 1014 1.39 fvdl */ 1015 1.39 fvdl while ((len = (MLEN - m1->m_len)) != 0 && m2) { 1016 1.39 fvdl if ((len = min(len, m2->m_len)) != 0) 1017 1.39 fvdl bcopy(m2->m_data, dst, len); 1018 1.39 fvdl m1->m_len += len; 1019 1.39 fvdl dst += len; 1020 1.39 fvdl m2->m_data += len; 1021 1.39 fvdl m2->m_len -= len; 1022 1.39 fvdl m2 = m2->m_next; 1023 1.39 fvdl } 1024 1.39 fvdl if (m1->m_len < siz) 1025 1.39 fvdl return (EBADRPC); 1026 1.1 cgd return (0); 1027 1.1 cgd } 1028 1.1 cgd 1029 1.1 cgd /* 1030 1.1 cgd * Advance the position in the mbuf chain. 1031 1.1 cgd */ 1032 1.24 christos int 1033 1.1 cgd nfs_adv(mdp, dposp, offs, left) 1034 1.1 cgd struct mbuf **mdp; 1035 1.1 cgd caddr_t *dposp; 1036 1.1 cgd int offs; 1037 1.1 cgd int left; 1038 1.1 cgd { 1039 1.1 cgd register struct mbuf *m; 1040 1.1 cgd register int s; 1041 1.1 cgd 1042 1.1 cgd m = *mdp; 1043 1.1 cgd s = left; 1044 1.1 cgd while (s < offs) { 1045 1.1 cgd offs -= s; 1046 1.1 cgd m = m->m_next; 1047 1.1 cgd if (m == NULL) 1048 1.1 cgd return (EBADRPC); 1049 1.1 cgd s = m->m_len; 1050 1.1 cgd } 1051 1.1 cgd *mdp = m; 1052 1.1 cgd *dposp = mtod(m, caddr_t)+offs; 1053 1.1 cgd return (0); 1054 1.1 cgd } 1055 1.1 cgd 1056 1.1 cgd /* 1057 1.1 cgd * Copy a string into mbufs for the hard cases... 1058 1.1 cgd */ 1059 1.24 christos int 1060 1.1 cgd nfsm_strtmbuf(mb, bpos, cp, siz) 1061 1.1 cgd struct mbuf **mb; 1062 1.1 cgd char **bpos; 1063 1.33 cgd const char *cp; 1064 1.1 cgd long siz; 1065 1.1 cgd { 1066 1.24 christos register struct mbuf *m1 = NULL, *m2; 1067 1.1 cgd long left, xfer, len, tlen; 1068 1.22 cgd u_int32_t *tl; 1069 1.1 cgd int putsize; 1070 1.1 cgd 1071 1.1 cgd putsize = 1; 1072 1.1 cgd m2 = *mb; 1073 1.12 mycroft left = M_TRAILINGSPACE(m2); 1074 1.1 cgd if (left > 0) { 1075 1.22 cgd tl = ((u_int32_t *)(*bpos)); 1076 1.1 cgd *tl++ = txdr_unsigned(siz); 1077 1.1 cgd putsize = 0; 1078 1.1 cgd left -= NFSX_UNSIGNED; 1079 1.1 cgd m2->m_len += NFSX_UNSIGNED; 1080 1.1 cgd if (left > 0) { 1081 1.1 cgd bcopy(cp, (caddr_t) tl, left); 1082 1.1 cgd siz -= left; 1083 1.1 cgd cp += left; 1084 1.1 cgd m2->m_len += left; 1085 1.1 cgd left = 0; 1086 1.1 cgd } 1087 1.1 cgd } 1088 1.12 mycroft /* Loop around adding mbufs */ 1089 1.1 cgd while (siz > 0) { 1090 1.1 cgd MGET(m1, M_WAIT, MT_DATA); 1091 1.1 cgd if (siz > MLEN) 1092 1.1 cgd MCLGET(m1, M_WAIT); 1093 1.1 cgd m1->m_len = NFSMSIZ(m1); 1094 1.1 cgd m2->m_next = m1; 1095 1.1 cgd m2 = m1; 1096 1.22 cgd tl = mtod(m1, u_int32_t *); 1097 1.1 cgd tlen = 0; 1098 1.1 cgd if (putsize) { 1099 1.1 cgd *tl++ = txdr_unsigned(siz); 1100 1.1 cgd m1->m_len -= NFSX_UNSIGNED; 1101 1.1 cgd tlen = NFSX_UNSIGNED; 1102 1.1 cgd putsize = 0; 1103 1.1 cgd } 1104 1.1 cgd if (siz < m1->m_len) { 1105 1.1 cgd len = nfsm_rndup(siz); 1106 1.1 cgd xfer = siz; 1107 1.1 cgd if (xfer < len) 1108 1.1 cgd *(tl+(xfer>>2)) = 0; 1109 1.1 cgd } else { 1110 1.1 cgd xfer = len = m1->m_len; 1111 1.1 cgd } 1112 1.1 cgd bcopy(cp, (caddr_t) tl, xfer); 1113 1.1 cgd m1->m_len = len+tlen; 1114 1.1 cgd siz -= xfer; 1115 1.1 cgd cp += xfer; 1116 1.1 cgd } 1117 1.1 cgd *mb = m1; 1118 1.1 cgd *bpos = mtod(m1, caddr_t)+m1->m_len; 1119 1.1 cgd return (0); 1120 1.1 cgd } 1121 1.1 cgd 1122 1.1 cgd /* 1123 1.35 thorpej * Called once before VFS init to initialize shared and 1124 1.35 thorpej * server-specific data structures. 1125 1.1 cgd */ 1126 1.24 christos void 1127 1.1 cgd nfs_init() 1128 1.1 cgd { 1129 1.1 cgd 1130 1.25 fvdl #if !defined(alpha) && defined(DIAGNOSTIC) 1131 1.25 fvdl /* 1132 1.25 fvdl * Check to see if major data structures haven't bloated. 1133 1.25 fvdl */ 1134 1.25 fvdl if (sizeof (struct nfsnode) > NFS_NODEALLOC) { 1135 1.32 christos printf("struct nfsnode bloated (> %dbytes)\n", NFS_NODEALLOC); 1136 1.32 christos printf("Try reducing NFS_SMALLFH\n"); 1137 1.25 fvdl } 1138 1.25 fvdl if (sizeof (struct nfsmount) > NFS_MNTALLOC) { 1139 1.32 christos printf("struct nfsmount bloated (> %dbytes)\n", NFS_MNTALLOC); 1140 1.32 christos printf("Try reducing NFS_MUIDHASHSIZ\n"); 1141 1.25 fvdl } 1142 1.25 fvdl if (sizeof (struct nfssvc_sock) > NFS_SVCALLOC) { 1143 1.32 christos printf("struct nfssvc_sock bloated (> %dbytes)\n",NFS_SVCALLOC); 1144 1.32 christos printf("Try reducing NFS_UIDHASHSIZ\n"); 1145 1.25 fvdl } 1146 1.25 fvdl if (sizeof (struct nfsuid) > NFS_UIDALLOC) { 1147 1.32 christos printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC); 1148 1.32 christos printf("Try unionizing the nu_nickname and nu_flag fields\n"); 1149 1.25 fvdl } 1150 1.25 fvdl #endif 1151 1.25 fvdl 1152 1.12 mycroft nfsrtt.pos = 0; 1153 1.1 cgd rpc_vers = txdr_unsigned(RPC_VER2); 1154 1.1 cgd rpc_call = txdr_unsigned(RPC_CALL); 1155 1.1 cgd rpc_reply = txdr_unsigned(RPC_REPLY); 1156 1.1 cgd rpc_msgdenied = txdr_unsigned(RPC_MSGDENIED); 1157 1.1 cgd rpc_msgaccepted = txdr_unsigned(RPC_MSGACCEPTED); 1158 1.1 cgd rpc_mismatch = txdr_unsigned(RPC_MISMATCH); 1159 1.12 mycroft rpc_autherr = txdr_unsigned(RPC_AUTHERR); 1160 1.1 cgd rpc_auth_unix = txdr_unsigned(RPCAUTH_UNIX); 1161 1.25 fvdl rpc_auth_kerb = txdr_unsigned(RPCAUTH_KERB4); 1162 1.1 cgd nfs_prog = txdr_unsigned(NFS_PROG); 1163 1.25 fvdl nqnfs_prog = txdr_unsigned(NQNFS_PROG); 1164 1.1 cgd nfs_true = txdr_unsigned(TRUE); 1165 1.1 cgd nfs_false = txdr_unsigned(FALSE); 1166 1.12 mycroft nfs_xdrneg1 = txdr_unsigned(-1); 1167 1.25 fvdl nfs_ticks = (hz * NFS_TICKINTVL + 500) / 1000; 1168 1.25 fvdl if (nfs_ticks < 1) 1169 1.25 fvdl nfs_ticks = 1; 1170 1.2 glass #ifdef NFSSERVER 1171 1.12 mycroft nfsrv_init(0); /* Init server data structures */ 1172 1.1 cgd nfsrv_initcache(); /* Init the server request cache */ 1173 1.36 fvdl #endif /* NFSSERVER */ 1174 1.12 mycroft 1175 1.12 mycroft /* 1176 1.37 fvdl * Initialize the nqnfs data structures. 1177 1.12 mycroft */ 1178 1.12 mycroft if (nqnfsstarttime == 0) { 1179 1.12 mycroft nqnfsstarttime = boottime.tv_sec + nqsrv_maxlease 1180 1.12 mycroft + nqsrv_clockskew + nqsrv_writeslack; 1181 1.12 mycroft NQLOADNOVRAM(nqnfsstarttime); 1182 1.18 mycroft CIRCLEQ_INIT(&nqtimerhead); 1183 1.18 mycroft nqfhhashtbl = hashinit(NQLCHSZ, M_NQLEASE, &nqfhhash); 1184 1.12 mycroft } 1185 1.12 mycroft 1186 1.1 cgd /* 1187 1.1 cgd * Initialize reply list and start timer 1188 1.1 cgd */ 1189 1.16 mycroft TAILQ_INIT(&nfs_reqq); 1190 1.24 christos nfs_timer(NULL); 1191 1.1 cgd } 1192 1.1 cgd 1193 1.38 thorpej #ifdef NFS 1194 1.35 thorpej /* 1195 1.35 thorpej * Called once at VFS init to initialize client-specific data structures. 1196 1.35 thorpej */ 1197 1.35 thorpej void 1198 1.35 thorpej nfs_vfs_init() 1199 1.35 thorpej { 1200 1.35 thorpej register int i; 1201 1.35 thorpej 1202 1.35 thorpej /* Ensure async daemons disabled */ 1203 1.35 thorpej for (i = 0; i < NFS_MAXASYNCDAEMON; i++) { 1204 1.35 thorpej nfs_iodwant[i] = (struct proc *)0; 1205 1.35 thorpej nfs_iodmount[i] = (struct nfsmount *)0; 1206 1.35 thorpej } 1207 1.35 thorpej nfs_nhinit(); /* Init the nfsnode table */ 1208 1.35 thorpej } 1209 1.35 thorpej 1210 1.1 cgd /* 1211 1.12 mycroft * Attribute cache routines. 1212 1.12 mycroft * nfs_loadattrcache() - loads or updates the cache contents from attributes 1213 1.12 mycroft * that are on the mbuf list 1214 1.12 mycroft * nfs_getattrcache() - returns valid attributes if found in cache, returns 1215 1.12 mycroft * error otherwise 1216 1.1 cgd */ 1217 1.12 mycroft 1218 1.12 mycroft /* 1219 1.12 mycroft * Load the attribute cache (that lives in the nfsnode entry) with 1220 1.12 mycroft * the values on the mbuf list and 1221 1.12 mycroft * Iff vap not NULL 1222 1.12 mycroft * copy the attributes to *vaper 1223 1.12 mycroft */ 1224 1.24 christos int 1225 1.45 fvdl nfsm_loadattrcache(vpp, mdp, dposp, vaper) 1226 1.12 mycroft struct vnode **vpp; 1227 1.12 mycroft struct mbuf **mdp; 1228 1.12 mycroft caddr_t *dposp; 1229 1.12 mycroft struct vattr *vaper; 1230 1.1 cgd { 1231 1.22 cgd register int32_t t1; 1232 1.25 fvdl caddr_t cp2; 1233 1.25 fvdl int error = 0; 1234 1.12 mycroft struct mbuf *md; 1235 1.45 fvdl int v3 = NFS_ISV3(*vpp); 1236 1.1 cgd 1237 1.12 mycroft md = *mdp; 1238 1.25 fvdl t1 = (mtod(md, caddr_t) + md->m_len) - *dposp; 1239 1.25 fvdl error = nfsm_disct(mdp, dposp, NFSX_FATTR(v3), t1, &cp2); 1240 1.24 christos if (error) 1241 1.12 mycroft return (error); 1242 1.45 fvdl return nfs_loadattrcache(vpp, (struct nfs_fattr *)cp2, vaper); 1243 1.45 fvdl } 1244 1.45 fvdl 1245 1.45 fvdl int 1246 1.45 fvdl nfs_loadattrcache(vpp, fp, vaper) 1247 1.45 fvdl struct vnode **vpp; 1248 1.45 fvdl struct nfs_fattr *fp; 1249 1.45 fvdl struct vattr *vaper; 1250 1.45 fvdl { 1251 1.45 fvdl register struct vnode *vp = *vpp; 1252 1.45 fvdl register struct vattr *vap; 1253 1.45 fvdl int v3 = NFS_ISV3(vp); 1254 1.45 fvdl enum vtype vtyp; 1255 1.45 fvdl u_short vmode; 1256 1.45 fvdl struct timespec mtime; 1257 1.45 fvdl struct vnode *nvp; 1258 1.45 fvdl int32_t rdev; 1259 1.45 fvdl register struct nfsnode *np; 1260 1.45 fvdl extern int (**spec_nfsv2nodeop_p) __P((void *)); 1261 1.45 fvdl 1262 1.25 fvdl if (v3) { 1263 1.25 fvdl vtyp = nfsv3tov_type(fp->fa_type); 1264 1.25 fvdl vmode = fxdr_unsigned(u_short, fp->fa_mode); 1265 1.25 fvdl rdev = makedev(fxdr_unsigned(u_char, fp->fa3_rdev.specdata1), 1266 1.25 fvdl fxdr_unsigned(u_char, fp->fa3_rdev.specdata2)); 1267 1.25 fvdl fxdr_nfsv3time(&fp->fa3_mtime, &mtime); 1268 1.12 mycroft } else { 1269 1.25 fvdl vtyp = nfsv2tov_type(fp->fa_type); 1270 1.25 fvdl vmode = fxdr_unsigned(u_short, fp->fa_mode); 1271 1.25 fvdl if (vtyp == VNON || vtyp == VREG) 1272 1.25 fvdl vtyp = IFTOVT(vmode); 1273 1.25 fvdl rdev = fxdr_unsigned(int32_t, fp->fa2_rdev); 1274 1.25 fvdl fxdr_nfsv2time(&fp->fa2_mtime, &mtime); 1275 1.25 fvdl 1276 1.25 fvdl /* 1277 1.25 fvdl * Really ugly NFSv2 kludge. 1278 1.25 fvdl */ 1279 1.25 fvdl if (vtyp == VCHR && rdev == 0xffffffff) 1280 1.25 fvdl vtyp = VFIFO; 1281 1.12 mycroft } 1282 1.25 fvdl 1283 1.12 mycroft /* 1284 1.12 mycroft * If v_type == VNON it is a new node, so fill in the v_type, 1285 1.12 mycroft * n_mtime fields. Check to see if it represents a special 1286 1.12 mycroft * device, and if so, check for a possible alias. Once the 1287 1.12 mycroft * correct vnode has been obtained, fill in the rest of the 1288 1.12 mycroft * information. 1289 1.12 mycroft */ 1290 1.12 mycroft np = VTONFS(vp); 1291 1.28 fvdl if (vp->v_type != vtyp) { 1292 1.25 fvdl vp->v_type = vtyp; 1293 1.12 mycroft if (vp->v_type == VFIFO) { 1294 1.27 thorpej #ifndef FIFO 1295 1.27 thorpej return (EOPNOTSUPP); 1296 1.27 thorpej #else 1297 1.24 christos extern int (**fifo_nfsv2nodeop_p) __P((void *)); 1298 1.12 mycroft vp->v_op = fifo_nfsv2nodeop_p; 1299 1.27 thorpej #endif /* FIFO */ 1300 1.12 mycroft } 1301 1.12 mycroft if (vp->v_type == VCHR || vp->v_type == VBLK) { 1302 1.12 mycroft vp->v_op = spec_nfsv2nodeop_p; 1303 1.24 christos nvp = checkalias(vp, (dev_t)rdev, vp->v_mount); 1304 1.24 christos if (nvp) { 1305 1.12 mycroft /* 1306 1.12 mycroft * Discard unneeded vnode, but save its nfsnode. 1307 1.25 fvdl * Since the nfsnode does not have a lock, its 1308 1.25 fvdl * vnode lock has to be carried over. 1309 1.12 mycroft */ 1310 1.25 fvdl #ifdef Lite2_integrated 1311 1.25 fvdl nvp->v_vnlock = vp->v_vnlock; 1312 1.25 fvdl vp->v_vnlock = NULL; 1313 1.25 fvdl #endif 1314 1.12 mycroft nvp->v_data = vp->v_data; 1315 1.12 mycroft vp->v_data = NULL; 1316 1.12 mycroft vp->v_op = spec_vnodeop_p; 1317 1.12 mycroft vrele(vp); 1318 1.12 mycroft vgone(vp); 1319 1.12 mycroft /* 1320 1.12 mycroft * Reinitialize aliased node. 1321 1.12 mycroft */ 1322 1.12 mycroft np->n_vnode = nvp; 1323 1.12 mycroft *vpp = vp = nvp; 1324 1.12 mycroft } 1325 1.12 mycroft } 1326 1.23 jtc np->n_mtime = mtime.tv_sec; 1327 1.12 mycroft } 1328 1.12 mycroft vap = &np->n_vattr; 1329 1.12 mycroft vap->va_type = vtyp; 1330 1.42 mycroft vap->va_mode = vmode & ALLPERMS; 1331 1.12 mycroft vap->va_rdev = (dev_t)rdev; 1332 1.12 mycroft vap->va_mtime = mtime; 1333 1.12 mycroft vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; 1334 1.25 fvdl if (v3) { 1335 1.25 fvdl vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 1336 1.25 fvdl vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 1337 1.25 fvdl vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 1338 1.25 fvdl fxdr_hyper(&fp->fa3_size, &vap->va_size); 1339 1.25 fvdl vap->va_blocksize = NFS_FABLKSIZE; 1340 1.25 fvdl fxdr_hyper(&fp->fa3_used, &vap->va_bytes); 1341 1.25 fvdl vap->va_fileid = fxdr_unsigned(int32_t, 1342 1.25 fvdl fp->fa3_fileid.nfsuquad[1]); 1343 1.25 fvdl fxdr_nfsv3time(&fp->fa3_atime, &vap->va_atime); 1344 1.25 fvdl fxdr_nfsv3time(&fp->fa3_ctime, &vap->va_ctime); 1345 1.25 fvdl vap->va_flags = 0; 1346 1.25 fvdl vap->va_filerev = 0; 1347 1.12 mycroft } else { 1348 1.25 fvdl vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); 1349 1.25 fvdl vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); 1350 1.25 fvdl vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); 1351 1.25 fvdl vap->va_size = fxdr_unsigned(u_int32_t, fp->fa2_size); 1352 1.25 fvdl vap->va_blocksize = fxdr_unsigned(int32_t, fp->fa2_blocksize); 1353 1.25 fvdl vap->va_bytes = fxdr_unsigned(int32_t, fp->fa2_blocks) 1354 1.25 fvdl * NFS_FABLKSIZE; 1355 1.25 fvdl vap->va_fileid = fxdr_unsigned(int32_t, fp->fa2_fileid); 1356 1.25 fvdl fxdr_nfsv2time(&fp->fa2_atime, &vap->va_atime); 1357 1.12 mycroft vap->va_flags = 0; 1358 1.25 fvdl vap->va_ctime.tv_sec = fxdr_unsigned(u_int32_t, 1359 1.25 fvdl fp->fa2_ctime.nfsv2_sec); 1360 1.25 fvdl vap->va_ctime.tv_nsec = 0; 1361 1.25 fvdl vap->va_gen = fxdr_unsigned(u_int32_t,fp->fa2_ctime.nfsv2_usec); 1362 1.12 mycroft vap->va_filerev = 0; 1363 1.12 mycroft } 1364 1.12 mycroft if (vap->va_size != np->n_size) { 1365 1.12 mycroft if (vap->va_type == VREG) { 1366 1.12 mycroft if (np->n_flag & NMODIFIED) { 1367 1.12 mycroft if (vap->va_size < np->n_size) 1368 1.12 mycroft vap->va_size = np->n_size; 1369 1.12 mycroft else 1370 1.12 mycroft np->n_size = vap->va_size; 1371 1.12 mycroft } else 1372 1.12 mycroft np->n_size = vap->va_size; 1373 1.44 drochner vnode_pager_setsize(vp, np->n_size); 1374 1.12 mycroft } else 1375 1.12 mycroft np->n_size = vap->va_size; 1376 1.12 mycroft } 1377 1.12 mycroft np->n_attrstamp = time.tv_sec; 1378 1.12 mycroft if (vaper != NULL) { 1379 1.12 mycroft bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); 1380 1.12 mycroft if (np->n_flag & NCHG) { 1381 1.25 fvdl if (np->n_flag & NACC) 1382 1.25 fvdl vaper->va_atime = np->n_atim; 1383 1.25 fvdl if (np->n_flag & NUPD) 1384 1.25 fvdl vaper->va_mtime = np->n_mtim; 1385 1.12 mycroft } 1386 1.12 mycroft } 1387 1.12 mycroft return (0); 1388 1.12 mycroft } 1389 1.12 mycroft 1390 1.12 mycroft /* 1391 1.12 mycroft * Check the time stamp 1392 1.12 mycroft * If the cache is valid, copy contents to *vap and return 0 1393 1.12 mycroft * otherwise return an error 1394 1.12 mycroft */ 1395 1.24 christos int 1396 1.12 mycroft nfs_getattrcache(vp, vaper) 1397 1.12 mycroft register struct vnode *vp; 1398 1.12 mycroft struct vattr *vaper; 1399 1.12 mycroft { 1400 1.12 mycroft register struct nfsnode *np = VTONFS(vp); 1401 1.12 mycroft register struct vattr *vap; 1402 1.12 mycroft 1403 1.25 fvdl if ((time.tv_sec - np->n_attrstamp) >= NFS_ATTRTIMEO(np)) { 1404 1.12 mycroft nfsstats.attrcache_misses++; 1405 1.12 mycroft return (ENOENT); 1406 1.12 mycroft } 1407 1.12 mycroft nfsstats.attrcache_hits++; 1408 1.12 mycroft vap = &np->n_vattr; 1409 1.12 mycroft if (vap->va_size != np->n_size) { 1410 1.12 mycroft if (vap->va_type == VREG) { 1411 1.12 mycroft if (np->n_flag & NMODIFIED) { 1412 1.12 mycroft if (vap->va_size < np->n_size) 1413 1.12 mycroft vap->va_size = np->n_size; 1414 1.12 mycroft else 1415 1.12 mycroft np->n_size = vap->va_size; 1416 1.12 mycroft } else 1417 1.12 mycroft np->n_size = vap->va_size; 1418 1.44 drochner vnode_pager_setsize(vp, np->n_size); 1419 1.12 mycroft } else 1420 1.12 mycroft np->n_size = vap->va_size; 1421 1.12 mycroft } 1422 1.12 mycroft bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(struct vattr)); 1423 1.12 mycroft if (np->n_flag & NCHG) { 1424 1.25 fvdl if (np->n_flag & NACC) 1425 1.25 fvdl vaper->va_atime = np->n_atim; 1426 1.25 fvdl if (np->n_flag & NUPD) 1427 1.25 fvdl vaper->va_mtime = np->n_mtim; 1428 1.1 cgd } 1429 1.12 mycroft return (0); 1430 1.1 cgd } 1431 1.38 thorpej #endif /* NFS */ 1432 1.1 cgd 1433 1.1 cgd /* 1434 1.43 fvdl * Set up nameidata for a lookup() call and do it. 1435 1.43 fvdl * 1436 1.43 fvdl * If pubflag is set, this call is done for a lookup operation on the 1437 1.43 fvdl * public filehandle. In that case we allow crossing mountpoints and 1438 1.43 fvdl * absolute pathnames. However, the caller is expected to check that 1439 1.43 fvdl * the lookup result is within the public fs, and deny access if 1440 1.43 fvdl * it is not. 1441 1.1 cgd */ 1442 1.24 christos int 1443 1.43 fvdl nfs_namei(ndp, fhp, len, slp, nam, mdp, dposp, retdirp, p, kerbflag, pubflag) 1444 1.1 cgd register struct nameidata *ndp; 1445 1.1 cgd fhandle_t *fhp; 1446 1.1 cgd int len; 1447 1.12 mycroft struct nfssvc_sock *slp; 1448 1.12 mycroft struct mbuf *nam; 1449 1.1 cgd struct mbuf **mdp; 1450 1.1 cgd caddr_t *dposp; 1451 1.25 fvdl struct vnode **retdirp; 1452 1.1 cgd struct proc *p; 1453 1.43 fvdl int kerbflag, pubflag; 1454 1.1 cgd { 1455 1.1 cgd register int i, rem; 1456 1.1 cgd register struct mbuf *md; 1457 1.43 fvdl register char *fromcp, *tocp, *cp; 1458 1.43 fvdl struct iovec aiov; 1459 1.43 fvdl struct uio auio; 1460 1.1 cgd struct vnode *dp; 1461 1.43 fvdl int error, rdonly, linklen; 1462 1.12 mycroft struct componentname *cnp = &ndp->ni_cnd; 1463 1.1 cgd 1464 1.25 fvdl *retdirp = (struct vnode *)0; 1465 1.12 mycroft MALLOC(cnp->cn_pnbuf, char *, len + 1, M_NAMEI, M_WAITOK); 1466 1.1 cgd /* 1467 1.1 cgd * Copy the name from the mbuf list to ndp->ni_pnbuf 1468 1.1 cgd * and set the various ndp fields appropriately. 1469 1.1 cgd */ 1470 1.1 cgd fromcp = *dposp; 1471 1.12 mycroft tocp = cnp->cn_pnbuf; 1472 1.1 cgd md = *mdp; 1473 1.1 cgd rem = mtod(md, caddr_t) + md->m_len - fromcp; 1474 1.1 cgd for (i = 0; i < len; i++) { 1475 1.1 cgd while (rem == 0) { 1476 1.1 cgd md = md->m_next; 1477 1.1 cgd if (md == NULL) { 1478 1.1 cgd error = EBADRPC; 1479 1.1 cgd goto out; 1480 1.1 cgd } 1481 1.1 cgd fromcp = mtod(md, caddr_t); 1482 1.1 cgd rem = md->m_len; 1483 1.1 cgd } 1484 1.43 fvdl if (*fromcp == '\0' || (!pubflag && *fromcp == '/')) { 1485 1.25 fvdl error = EACCES; 1486 1.1 cgd goto out; 1487 1.1 cgd } 1488 1.1 cgd *tocp++ = *fromcp++; 1489 1.1 cgd rem--; 1490 1.1 cgd } 1491 1.1 cgd *tocp = '\0'; 1492 1.1 cgd *mdp = md; 1493 1.1 cgd *dposp = fromcp; 1494 1.1 cgd len = nfsm_rndup(len)-len; 1495 1.1 cgd if (len > 0) { 1496 1.1 cgd if (rem >= len) 1497 1.1 cgd *dposp += len; 1498 1.24 christos else if ((error = nfs_adv(mdp, dposp, len, rem)) != 0) 1499 1.1 cgd goto out; 1500 1.1 cgd } 1501 1.43 fvdl 1502 1.1 cgd /* 1503 1.1 cgd * Extract and set starting directory. 1504 1.1 cgd */ 1505 1.24 christos error = nfsrv_fhtovp(fhp, FALSE, &dp, ndp->ni_cnd.cn_cred, slp, 1506 1.43 fvdl nam, &rdonly, kerbflag, pubflag); 1507 1.24 christos if (error) 1508 1.1 cgd goto out; 1509 1.1 cgd if (dp->v_type != VDIR) { 1510 1.1 cgd vrele(dp); 1511 1.1 cgd error = ENOTDIR; 1512 1.1 cgd goto out; 1513 1.1 cgd } 1514 1.43 fvdl 1515 1.43 fvdl if (rdonly) 1516 1.43 fvdl cnp->cn_flags |= RDONLY; 1517 1.43 fvdl 1518 1.43 fvdl *retdirp = dp; 1519 1.43 fvdl 1520 1.43 fvdl if (pubflag) { 1521 1.43 fvdl /* 1522 1.43 fvdl * Oh joy. For WebNFS, handle those pesky '%' escapes, 1523 1.43 fvdl * and the 'native path' indicator. 1524 1.43 fvdl */ 1525 1.43 fvdl MALLOC(cp, char *, MAXPATHLEN, M_NAMEI, M_WAITOK); 1526 1.43 fvdl fromcp = cnp->cn_pnbuf; 1527 1.43 fvdl tocp = cp; 1528 1.43 fvdl if ((unsigned char)*fromcp >= WEBNFS_SPECCHAR_START) { 1529 1.43 fvdl switch ((unsigned char)*fromcp) { 1530 1.43 fvdl case WEBNFS_NATIVE_CHAR: 1531 1.43 fvdl /* 1532 1.43 fvdl * 'Native' path for us is the same 1533 1.43 fvdl * as a path according to the NFS spec, 1534 1.43 fvdl * just skip the escape char. 1535 1.43 fvdl */ 1536 1.43 fvdl fromcp++; 1537 1.43 fvdl break; 1538 1.43 fvdl /* 1539 1.43 fvdl * More may be added in the future, range 0x80-0xff 1540 1.43 fvdl */ 1541 1.43 fvdl default: 1542 1.43 fvdl error = EIO; 1543 1.43 fvdl FREE(cp, M_NAMEI); 1544 1.43 fvdl goto out; 1545 1.43 fvdl } 1546 1.43 fvdl } 1547 1.43 fvdl /* 1548 1.43 fvdl * Translate the '%' escapes, URL-style. 1549 1.43 fvdl */ 1550 1.43 fvdl while (*fromcp != '\0') { 1551 1.43 fvdl if (*fromcp == WEBNFS_ESC_CHAR) { 1552 1.43 fvdl if (fromcp[1] != '\0' && fromcp[2] != '\0') { 1553 1.43 fvdl fromcp++; 1554 1.43 fvdl *tocp++ = HEXSTRTOI(fromcp); 1555 1.43 fvdl fromcp += 2; 1556 1.43 fvdl continue; 1557 1.43 fvdl } else { 1558 1.43 fvdl error = ENOENT; 1559 1.43 fvdl FREE(cp, M_NAMEI); 1560 1.43 fvdl goto out; 1561 1.43 fvdl } 1562 1.43 fvdl } else 1563 1.43 fvdl *tocp++ = *fromcp++; 1564 1.43 fvdl } 1565 1.43 fvdl *tocp = '\0'; 1566 1.43 fvdl FREE(cnp->cn_pnbuf, M_NAMEI); 1567 1.43 fvdl cnp->cn_pnbuf = cp; 1568 1.43 fvdl } 1569 1.43 fvdl 1570 1.43 fvdl ndp->ni_pathlen = (tocp - cnp->cn_pnbuf) + 1; 1571 1.43 fvdl ndp->ni_segflg = UIO_SYSSPACE; 1572 1.43 fvdl 1573 1.43 fvdl if (pubflag) { 1574 1.43 fvdl ndp->ni_rootdir = rootvnode; 1575 1.43 fvdl ndp->ni_loopcnt = 0; 1576 1.43 fvdl if (cnp->cn_pnbuf[0] == '/') 1577 1.43 fvdl dp = rootvnode; 1578 1.43 fvdl } else { 1579 1.43 fvdl cnp->cn_flags |= NOCROSSMOUNT; 1580 1.43 fvdl } 1581 1.43 fvdl 1582 1.43 fvdl cnp->cn_proc = p; 1583 1.25 fvdl VREF(dp); 1584 1.43 fvdl 1585 1.43 fvdl for (;;) { 1586 1.43 fvdl cnp->cn_nameptr = cnp->cn_pnbuf; 1587 1.1 cgd ndp->ni_startdir = dp; 1588 1.1 cgd /* 1589 1.1 cgd * And call lookup() to do the real work 1590 1.1 cgd */ 1591 1.25 fvdl error = lookup(ndp); 1592 1.25 fvdl if (error) 1593 1.43 fvdl break; 1594 1.1 cgd /* 1595 1.1 cgd * Check for encountering a symbolic link 1596 1.1 cgd */ 1597 1.43 fvdl if ((cnp->cn_flags & ISSYMLINK) == 0) { 1598 1.43 fvdl if (cnp->cn_flags & (SAVENAME | SAVESTART)) { 1599 1.43 fvdl cnp->cn_flags |= HASBUF; 1600 1.43 fvdl return (0); 1601 1.43 fvdl } 1602 1.43 fvdl break; 1603 1.43 fvdl } else { 1604 1.12 mycroft if ((cnp->cn_flags & LOCKPARENT) && ndp->ni_pathlen == 1) 1605 1.43 fvdl VOP_UNLOCK(ndp->ni_dvp); 1606 1.43 fvdl if (!pubflag) { 1607 1.43 fvdl vrele(ndp->ni_dvp); 1608 1.43 fvdl vput(ndp->ni_vp); 1609 1.43 fvdl ndp->ni_vp = NULL; 1610 1.43 fvdl error = EINVAL; 1611 1.43 fvdl break; 1612 1.43 fvdl } 1613 1.43 fvdl 1614 1.43 fvdl if (ndp->ni_loopcnt++ >= MAXSYMLINKS) { 1615 1.43 fvdl error = ELOOP; 1616 1.43 fvdl break; 1617 1.43 fvdl } 1618 1.43 fvdl if (ndp->ni_pathlen > 1) 1619 1.43 fvdl MALLOC(cp, char *, MAXPATHLEN, M_NAMEI, M_WAITOK); 1620 1.1 cgd else 1621 1.43 fvdl cp = cnp->cn_pnbuf; 1622 1.43 fvdl aiov.iov_base = cp; 1623 1.43 fvdl aiov.iov_len = MAXPATHLEN; 1624 1.43 fvdl auio.uio_iov = &aiov; 1625 1.43 fvdl auio.uio_iovcnt = 1; 1626 1.43 fvdl auio.uio_offset = 0; 1627 1.43 fvdl auio.uio_rw = UIO_READ; 1628 1.43 fvdl auio.uio_segflg = UIO_SYSSPACE; 1629 1.43 fvdl auio.uio_procp = (struct proc *)0; 1630 1.43 fvdl auio.uio_resid = MAXPATHLEN; 1631 1.43 fvdl error = VOP_READLINK(ndp->ni_vp, &auio, cnp->cn_cred); 1632 1.43 fvdl if (error) { 1633 1.43 fvdl badlink: 1634 1.43 fvdl if (ndp->ni_pathlen > 1) 1635 1.43 fvdl FREE(cp, M_NAMEI); 1636 1.43 fvdl break; 1637 1.43 fvdl } 1638 1.43 fvdl linklen = MAXPATHLEN - auio.uio_resid; 1639 1.43 fvdl if (linklen == 0) { 1640 1.43 fvdl error = ENOENT; 1641 1.43 fvdl goto badlink; 1642 1.43 fvdl } 1643 1.43 fvdl if (linklen + ndp->ni_pathlen >= MAXPATHLEN) { 1644 1.43 fvdl error = ENAMETOOLONG; 1645 1.43 fvdl goto badlink; 1646 1.43 fvdl } 1647 1.43 fvdl if (ndp->ni_pathlen > 1) { 1648 1.43 fvdl bcopy(ndp->ni_next, cp + linklen, ndp->ni_pathlen); 1649 1.43 fvdl FREE(cnp->cn_pnbuf, M_NAMEI); 1650 1.43 fvdl cnp->cn_pnbuf = cp; 1651 1.43 fvdl } else 1652 1.43 fvdl cnp->cn_pnbuf[linklen] = '\0'; 1653 1.43 fvdl ndp->ni_pathlen += linklen; 1654 1.1 cgd vput(ndp->ni_vp); 1655 1.43 fvdl dp = ndp->ni_dvp; 1656 1.43 fvdl /* 1657 1.43 fvdl * Check if root directory should replace current directory. 1658 1.43 fvdl */ 1659 1.43 fvdl if (cnp->cn_pnbuf[0] == '/') { 1660 1.43 fvdl vrele(dp); 1661 1.43 fvdl dp = ndp->ni_rootdir; 1662 1.43 fvdl VREF(dp); 1663 1.43 fvdl } 1664 1.1 cgd } 1665 1.43 fvdl } 1666 1.1 cgd out: 1667 1.12 mycroft FREE(cnp->cn_pnbuf, M_NAMEI); 1668 1.1 cgd return (error); 1669 1.1 cgd } 1670 1.1 cgd 1671 1.1 cgd /* 1672 1.1 cgd * A fiddled version of m_adj() that ensures null fill to a long 1673 1.1 cgd * boundary and only trims off the back end 1674 1.1 cgd */ 1675 1.12 mycroft void 1676 1.1 cgd nfsm_adj(mp, len, nul) 1677 1.1 cgd struct mbuf *mp; 1678 1.1 cgd register int len; 1679 1.1 cgd int nul; 1680 1.1 cgd { 1681 1.1 cgd register struct mbuf *m; 1682 1.1 cgd register int count, i; 1683 1.1 cgd register char *cp; 1684 1.1 cgd 1685 1.1 cgd /* 1686 1.1 cgd * Trim from tail. Scan the mbuf chain, 1687 1.1 cgd * calculating its length and finding the last mbuf. 1688 1.1 cgd * If the adjustment only affects this mbuf, then just 1689 1.1 cgd * adjust and return. Otherwise, rescan and truncate 1690 1.1 cgd * after the remaining size. 1691 1.1 cgd */ 1692 1.1 cgd count = 0; 1693 1.1 cgd m = mp; 1694 1.1 cgd for (;;) { 1695 1.1 cgd count += m->m_len; 1696 1.1 cgd if (m->m_next == (struct mbuf *)0) 1697 1.1 cgd break; 1698 1.1 cgd m = m->m_next; 1699 1.1 cgd } 1700 1.1 cgd if (m->m_len > len) { 1701 1.1 cgd m->m_len -= len; 1702 1.1 cgd if (nul > 0) { 1703 1.1 cgd cp = mtod(m, caddr_t)+m->m_len-nul; 1704 1.1 cgd for (i = 0; i < nul; i++) 1705 1.1 cgd *cp++ = '\0'; 1706 1.1 cgd } 1707 1.1 cgd return; 1708 1.1 cgd } 1709 1.1 cgd count -= len; 1710 1.1 cgd if (count < 0) 1711 1.1 cgd count = 0; 1712 1.1 cgd /* 1713 1.1 cgd * Correct length for chain is "count". 1714 1.1 cgd * Find the mbuf with last data, adjust its length, 1715 1.1 cgd * and toss data from remaining mbufs on chain. 1716 1.1 cgd */ 1717 1.1 cgd for (m = mp; m; m = m->m_next) { 1718 1.1 cgd if (m->m_len >= count) { 1719 1.1 cgd m->m_len = count; 1720 1.1 cgd if (nul > 0) { 1721 1.1 cgd cp = mtod(m, caddr_t)+m->m_len-nul; 1722 1.1 cgd for (i = 0; i < nul; i++) 1723 1.1 cgd *cp++ = '\0'; 1724 1.1 cgd } 1725 1.1 cgd break; 1726 1.1 cgd } 1727 1.1 cgd count -= m->m_len; 1728 1.1 cgd } 1729 1.25 fvdl for (m = m->m_next;m;m = m->m_next) 1730 1.1 cgd m->m_len = 0; 1731 1.1 cgd } 1732 1.1 cgd 1733 1.1 cgd /* 1734 1.25 fvdl * Make these functions instead of macros, so that the kernel text size 1735 1.25 fvdl * doesn't get too big... 1736 1.25 fvdl */ 1737 1.25 fvdl void 1738 1.25 fvdl nfsm_srvwcc(nfsd, before_ret, before_vap, after_ret, after_vap, mbp, bposp) 1739 1.25 fvdl struct nfsrv_descript *nfsd; 1740 1.25 fvdl int before_ret; 1741 1.25 fvdl register struct vattr *before_vap; 1742 1.25 fvdl int after_ret; 1743 1.25 fvdl struct vattr *after_vap; 1744 1.25 fvdl struct mbuf **mbp; 1745 1.25 fvdl char **bposp; 1746 1.25 fvdl { 1747 1.25 fvdl register struct mbuf *mb = *mbp, *mb2; 1748 1.25 fvdl register char *bpos = *bposp; 1749 1.25 fvdl register u_int32_t *tl; 1750 1.25 fvdl 1751 1.25 fvdl if (before_ret) { 1752 1.25 fvdl nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 1753 1.25 fvdl *tl = nfs_false; 1754 1.25 fvdl } else { 1755 1.25 fvdl nfsm_build(tl, u_int32_t *, 7 * NFSX_UNSIGNED); 1756 1.25 fvdl *tl++ = nfs_true; 1757 1.25 fvdl txdr_hyper(&(before_vap->va_size), tl); 1758 1.25 fvdl tl += 2; 1759 1.25 fvdl txdr_nfsv3time(&(before_vap->va_mtime), tl); 1760 1.25 fvdl tl += 2; 1761 1.25 fvdl txdr_nfsv3time(&(before_vap->va_ctime), tl); 1762 1.25 fvdl } 1763 1.25 fvdl *bposp = bpos; 1764 1.25 fvdl *mbp = mb; 1765 1.25 fvdl nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp); 1766 1.25 fvdl } 1767 1.25 fvdl 1768 1.25 fvdl void 1769 1.25 fvdl nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp) 1770 1.25 fvdl struct nfsrv_descript *nfsd; 1771 1.25 fvdl int after_ret; 1772 1.25 fvdl struct vattr *after_vap; 1773 1.25 fvdl struct mbuf **mbp; 1774 1.25 fvdl char **bposp; 1775 1.25 fvdl { 1776 1.25 fvdl register struct mbuf *mb = *mbp, *mb2; 1777 1.25 fvdl register char *bpos = *bposp; 1778 1.25 fvdl register u_int32_t *tl; 1779 1.25 fvdl register struct nfs_fattr *fp; 1780 1.25 fvdl 1781 1.25 fvdl if (after_ret) { 1782 1.25 fvdl nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED); 1783 1.25 fvdl *tl = nfs_false; 1784 1.25 fvdl } else { 1785 1.25 fvdl nfsm_build(tl, u_int32_t *, NFSX_UNSIGNED + NFSX_V3FATTR); 1786 1.25 fvdl *tl++ = nfs_true; 1787 1.25 fvdl fp = (struct nfs_fattr *)tl; 1788 1.25 fvdl nfsm_srvfattr(nfsd, after_vap, fp); 1789 1.25 fvdl } 1790 1.25 fvdl *mbp = mb; 1791 1.25 fvdl *bposp = bpos; 1792 1.25 fvdl } 1793 1.25 fvdl 1794 1.25 fvdl void 1795 1.25 fvdl nfsm_srvfattr(nfsd, vap, fp) 1796 1.25 fvdl register struct nfsrv_descript *nfsd; 1797 1.25 fvdl register struct vattr *vap; 1798 1.25 fvdl register struct nfs_fattr *fp; 1799 1.25 fvdl { 1800 1.25 fvdl 1801 1.25 fvdl fp->fa_nlink = txdr_unsigned(vap->va_nlink); 1802 1.25 fvdl fp->fa_uid = txdr_unsigned(vap->va_uid); 1803 1.25 fvdl fp->fa_gid = txdr_unsigned(vap->va_gid); 1804 1.25 fvdl if (nfsd->nd_flag & ND_NFSV3) { 1805 1.25 fvdl fp->fa_type = vtonfsv3_type(vap->va_type); 1806 1.25 fvdl fp->fa_mode = vtonfsv3_mode(vap->va_mode); 1807 1.25 fvdl txdr_hyper(&vap->va_size, &fp->fa3_size); 1808 1.25 fvdl txdr_hyper(&vap->va_bytes, &fp->fa3_used); 1809 1.25 fvdl fp->fa3_rdev.specdata1 = txdr_unsigned(major(vap->va_rdev)); 1810 1.25 fvdl fp->fa3_rdev.specdata2 = txdr_unsigned(minor(vap->va_rdev)); 1811 1.25 fvdl fp->fa3_fsid.nfsuquad[0] = 0; 1812 1.25 fvdl fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(vap->va_fsid); 1813 1.25 fvdl fp->fa3_fileid.nfsuquad[0] = 0; 1814 1.25 fvdl fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(vap->va_fileid); 1815 1.25 fvdl txdr_nfsv3time(&vap->va_atime, &fp->fa3_atime); 1816 1.25 fvdl txdr_nfsv3time(&vap->va_mtime, &fp->fa3_mtime); 1817 1.25 fvdl txdr_nfsv3time(&vap->va_ctime, &fp->fa3_ctime); 1818 1.25 fvdl } else { 1819 1.25 fvdl fp->fa_type = vtonfsv2_type(vap->va_type); 1820 1.25 fvdl fp->fa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); 1821 1.25 fvdl fp->fa2_size = txdr_unsigned(vap->va_size); 1822 1.25 fvdl fp->fa2_blocksize = txdr_unsigned(vap->va_blocksize); 1823 1.25 fvdl if (vap->va_type == VFIFO) 1824 1.25 fvdl fp->fa2_rdev = 0xffffffff; 1825 1.25 fvdl else 1826 1.25 fvdl fp->fa2_rdev = txdr_unsigned(vap->va_rdev); 1827 1.25 fvdl fp->fa2_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); 1828 1.25 fvdl fp->fa2_fsid = txdr_unsigned(vap->va_fsid); 1829 1.25 fvdl fp->fa2_fileid = txdr_unsigned(vap->va_fileid); 1830 1.25 fvdl txdr_nfsv2time(&vap->va_atime, &fp->fa2_atime); 1831 1.25 fvdl txdr_nfsv2time(&vap->va_mtime, &fp->fa2_mtime); 1832 1.25 fvdl txdr_nfsv2time(&vap->va_ctime, &fp->fa2_ctime); 1833 1.25 fvdl } 1834 1.25 fvdl } 1835 1.25 fvdl 1836 1.25 fvdl /* 1837 1.1 cgd * nfsrv_fhtovp() - convert a fh to a vnode ptr (optionally locked) 1838 1.1 cgd * - look up fsid in mount list (if not found ret error) 1839 1.12 mycroft * - get vp and export rights by calling VFS_FHTOVP() 1840 1.12 mycroft * - if cred->cr_uid == 0 or MNT_EXPORTANON set it to credanon 1841 1.1 cgd * - if not lockflag unlock it with VOP_UNLOCK() 1842 1.1 cgd */ 1843 1.24 christos int 1844 1.43 fvdl nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag, pubflag) 1845 1.1 cgd fhandle_t *fhp; 1846 1.1 cgd int lockflag; 1847 1.1 cgd struct vnode **vpp; 1848 1.1 cgd struct ucred *cred; 1849 1.12 mycroft struct nfssvc_sock *slp; 1850 1.12 mycroft struct mbuf *nam; 1851 1.12 mycroft int *rdonlyp; 1852 1.25 fvdl int kerbflag; 1853 1.1 cgd { 1854 1.25 fvdl #ifdef Lite2_integrated 1855 1.25 fvdl struct proc *p = curproc; /* XXX */ 1856 1.25 fvdl #endif 1857 1.1 cgd register struct mount *mp; 1858 1.12 mycroft register int i; 1859 1.12 mycroft struct ucred *credanon; 1860 1.12 mycroft int error, exflags; 1861 1.40 fvdl struct sockaddr_in *saddr; 1862 1.1 cgd 1863 1.12 mycroft *vpp = (struct vnode *)0; 1864 1.43 fvdl 1865 1.43 fvdl if (nfs_ispublicfh(fhp)) { 1866 1.43 fvdl if (!pubflag || !nfs_pub.np_valid) 1867 1.43 fvdl return (ESTALE); 1868 1.43 fvdl fhp = &nfs_pub.np_handle; 1869 1.43 fvdl } 1870 1.43 fvdl 1871 1.25 fvdl #ifdef Lite2_integrated 1872 1.25 fvdl mp = vfs_getvfs(&fhp->fh_fsid); 1873 1.25 fvdl #else 1874 1.25 fvdl mp = getvfs(&fhp->fh_fsid); 1875 1.25 fvdl #endif 1876 1.25 fvdl if (!mp) 1877 1.1 cgd return (ESTALE); 1878 1.24 christos error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon); 1879 1.24 christos if (error) 1880 1.12 mycroft return (error); 1881 1.40 fvdl 1882 1.43 fvdl if (!(exflags & (MNT_EXNORESPORT|MNT_EXPUBLIC))) { 1883 1.40 fvdl saddr = mtod(nam, struct sockaddr_in *); 1884 1.40 fvdl if (saddr->sin_family == AF_INET && 1885 1.40 fvdl ntohs(saddr->sin_port) >= IPPORT_RESERVED) { 1886 1.40 fvdl vput(*vpp); 1887 1.40 fvdl return (NFSERR_AUTHERR | AUTH_TOOWEAK); 1888 1.40 fvdl } 1889 1.40 fvdl } 1890 1.12 mycroft /* 1891 1.12 mycroft * Check/setup credentials. 1892 1.12 mycroft */ 1893 1.12 mycroft if (exflags & MNT_EXKERB) { 1894 1.25 fvdl if (!kerbflag) { 1895 1.12 mycroft vput(*vpp); 1896 1.25 fvdl return (NFSERR_AUTHERR | AUTH_TOOWEAK); 1897 1.12 mycroft } 1898 1.25 fvdl } else if (kerbflag) { 1899 1.25 fvdl vput(*vpp); 1900 1.25 fvdl return (NFSERR_AUTHERR | AUTH_TOOWEAK); 1901 1.12 mycroft } else if (cred->cr_uid == 0 || (exflags & MNT_EXPORTANON)) { 1902 1.12 mycroft cred->cr_uid = credanon->cr_uid; 1903 1.19 jtc cred->cr_gid = credanon->cr_gid; 1904 1.12 mycroft for (i = 0; i < credanon->cr_ngroups && i < NGROUPS; i++) 1905 1.12 mycroft cred->cr_groups[i] = credanon->cr_groups[i]; 1906 1.15 mycroft cred->cr_ngroups = i; 1907 1.12 mycroft } 1908 1.12 mycroft if (exflags & MNT_EXRDONLY) 1909 1.12 mycroft *rdonlyp = 1; 1910 1.12 mycroft else 1911 1.12 mycroft *rdonlyp = 0; 1912 1.1 cgd if (!lockflag) 1913 1.25 fvdl #ifdef Lite2_integrated 1914 1.25 fvdl VOP_UNLOCK(*vpp, 0, p); 1915 1.25 fvdl #else 1916 1.1 cgd VOP_UNLOCK(*vpp); 1917 1.25 fvdl #endif 1918 1.1 cgd return (0); 1919 1.43 fvdl } 1920 1.43 fvdl 1921 1.43 fvdl /* 1922 1.43 fvdl * WebNFS: check if a filehandle is a public filehandle. For v3, this 1923 1.43 fvdl * means a length of 0, for v2 it means all zeroes. nfsm_srvmtofh has 1924 1.43 fvdl * transformed this to all zeroes in both cases, so check for it. 1925 1.43 fvdl */ 1926 1.43 fvdl int 1927 1.43 fvdl nfs_ispublicfh(fhp) 1928 1.43 fvdl fhandle_t *fhp; 1929 1.43 fvdl { 1930 1.43 fvdl char *cp = (char *)fhp; 1931 1.43 fvdl int i; 1932 1.43 fvdl 1933 1.43 fvdl for (i = 0; i < NFSX_V3FH; i++) 1934 1.43 fvdl if (*cp++ != 0) 1935 1.43 fvdl return (FALSE); 1936 1.43 fvdl return (TRUE); 1937 1.1 cgd } 1938 1.1 cgd 1939 1.1 cgd /* 1940 1.12 mycroft * This function compares two net addresses by family and returns TRUE 1941 1.12 mycroft * if they are the same host. 1942 1.12 mycroft * If there is any doubt, return FALSE. 1943 1.12 mycroft * The AF_INET family is handled as a special case so that address mbufs 1944 1.12 mycroft * don't need to be saved to store "struct in_addr", which is only 4 bytes. 1945 1.1 cgd */ 1946 1.24 christos int 1947 1.12 mycroft netaddr_match(family, haddr, nam) 1948 1.12 mycroft int family; 1949 1.12 mycroft union nethostaddr *haddr; 1950 1.12 mycroft struct mbuf *nam; 1951 1.1 cgd { 1952 1.12 mycroft register struct sockaddr_in *inetaddr; 1953 1.1 cgd 1954 1.12 mycroft switch (family) { 1955 1.12 mycroft case AF_INET: 1956 1.12 mycroft inetaddr = mtod(nam, struct sockaddr_in *); 1957 1.12 mycroft if (inetaddr->sin_family == AF_INET && 1958 1.12 mycroft inetaddr->sin_addr.s_addr == haddr->had_inetaddr) 1959 1.12 mycroft return (1); 1960 1.12 mycroft break; 1961 1.12 mycroft #ifdef ISO 1962 1.12 mycroft case AF_ISO: 1963 1.12 mycroft { 1964 1.12 mycroft register struct sockaddr_iso *isoaddr1, *isoaddr2; 1965 1.12 mycroft 1966 1.12 mycroft isoaddr1 = mtod(nam, struct sockaddr_iso *); 1967 1.12 mycroft isoaddr2 = mtod(haddr->had_nam, struct sockaddr_iso *); 1968 1.12 mycroft if (isoaddr1->siso_family == AF_ISO && 1969 1.12 mycroft isoaddr1->siso_nlen > 0 && 1970 1.12 mycroft isoaddr1->siso_nlen == isoaddr2->siso_nlen && 1971 1.12 mycroft SAME_ISOADDR(isoaddr1, isoaddr2)) 1972 1.12 mycroft return (1); 1973 1.12 mycroft break; 1974 1.12 mycroft } 1975 1.12 mycroft #endif /* ISO */ 1976 1.12 mycroft default: 1977 1.12 mycroft break; 1978 1.12 mycroft }; 1979 1.12 mycroft return (0); 1980 1.25 fvdl } 1981 1.25 fvdl 1982 1.25 fvdl static nfsuint64 nfs_nullcookie = {{ 0, 0 }}; 1983 1.25 fvdl /* 1984 1.25 fvdl * This function finds the directory cookie that corresponds to the 1985 1.25 fvdl * logical byte offset given. 1986 1.25 fvdl */ 1987 1.25 fvdl nfsuint64 * 1988 1.25 fvdl nfs_getcookie(np, off, add) 1989 1.25 fvdl register struct nfsnode *np; 1990 1.25 fvdl off_t off; 1991 1.25 fvdl int add; 1992 1.25 fvdl { 1993 1.25 fvdl register struct nfsdmap *dp, *dp2; 1994 1.25 fvdl register int pos; 1995 1.25 fvdl 1996 1.25 fvdl pos = off / NFS_DIRBLKSIZ; 1997 1.25 fvdl if (pos == 0) { 1998 1.25 fvdl #ifdef DIAGNOSTIC 1999 1.25 fvdl if (add) 2000 1.25 fvdl panic("nfs getcookie add at 0"); 2001 1.25 fvdl #endif 2002 1.25 fvdl return (&nfs_nullcookie); 2003 1.25 fvdl } 2004 1.25 fvdl pos--; 2005 1.25 fvdl dp = np->n_cookies.lh_first; 2006 1.25 fvdl if (!dp) { 2007 1.25 fvdl if (add) { 2008 1.25 fvdl MALLOC(dp, struct nfsdmap *, sizeof (struct nfsdmap), 2009 1.25 fvdl M_NFSDIROFF, M_WAITOK); 2010 1.25 fvdl dp->ndm_eocookie = 0; 2011 1.25 fvdl LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list); 2012 1.25 fvdl } else 2013 1.25 fvdl return ((nfsuint64 *)0); 2014 1.25 fvdl } 2015 1.25 fvdl while (pos >= NFSNUMCOOKIES) { 2016 1.25 fvdl pos -= NFSNUMCOOKIES; 2017 1.25 fvdl if (dp->ndm_list.le_next) { 2018 1.25 fvdl if (!add && dp->ndm_eocookie < NFSNUMCOOKIES && 2019 1.25 fvdl pos >= dp->ndm_eocookie) 2020 1.25 fvdl return ((nfsuint64 *)0); 2021 1.25 fvdl dp = dp->ndm_list.le_next; 2022 1.25 fvdl } else if (add) { 2023 1.25 fvdl MALLOC(dp2, struct nfsdmap *, sizeof (struct nfsdmap), 2024 1.25 fvdl M_NFSDIROFF, M_WAITOK); 2025 1.25 fvdl dp2->ndm_eocookie = 0; 2026 1.25 fvdl LIST_INSERT_AFTER(dp, dp2, ndm_list); 2027 1.25 fvdl dp = dp2; 2028 1.25 fvdl } else 2029 1.25 fvdl return ((nfsuint64 *)0); 2030 1.25 fvdl } 2031 1.25 fvdl if (pos >= dp->ndm_eocookie) { 2032 1.25 fvdl if (add) 2033 1.25 fvdl dp->ndm_eocookie = pos + 1; 2034 1.25 fvdl else 2035 1.25 fvdl return ((nfsuint64 *)0); 2036 1.25 fvdl } 2037 1.25 fvdl return (&dp->ndm_cookies[pos]); 2038 1.25 fvdl } 2039 1.25 fvdl 2040 1.25 fvdl /* 2041 1.25 fvdl * Invalidate cached directory information, except for the actual directory 2042 1.25 fvdl * blocks (which are invalidated separately). 2043 1.25 fvdl * Done mainly to avoid the use of stale offset cookies. 2044 1.25 fvdl */ 2045 1.25 fvdl void 2046 1.25 fvdl nfs_invaldir(vp) 2047 1.25 fvdl register struct vnode *vp; 2048 1.25 fvdl { 2049 1.26 fvdl #ifdef notdef /* XXX */ 2050 1.25 fvdl register struct nfsnode *np = VTONFS(vp); 2051 1.25 fvdl 2052 1.25 fvdl #ifdef DIAGNOSTIC 2053 1.25 fvdl if (vp->v_type != VDIR) 2054 1.25 fvdl panic("nfs: invaldir not dir"); 2055 1.25 fvdl #endif 2056 1.25 fvdl np->n_direofoffset = 0; 2057 1.25 fvdl np->n_cookieverf.nfsuquad[0] = 0; 2058 1.25 fvdl np->n_cookieverf.nfsuquad[1] = 0; 2059 1.25 fvdl if (np->n_cookies.lh_first) 2060 1.25 fvdl np->n_cookies.lh_first->ndm_eocookie = 0; 2061 1.26 fvdl #endif 2062 1.25 fvdl } 2063 1.25 fvdl 2064 1.25 fvdl /* 2065 1.25 fvdl * The write verifier has changed (probably due to a server reboot), so all 2066 1.25 fvdl * B_NEEDCOMMIT blocks will have to be written again. Since they are on the 2067 1.25 fvdl * dirty block list as B_DELWRI, all this takes is clearing the B_NEEDCOMMIT 2068 1.25 fvdl * flag. Once done the new write verifier can be set for the mount point. 2069 1.25 fvdl */ 2070 1.25 fvdl void 2071 1.25 fvdl nfs_clearcommit(mp) 2072 1.25 fvdl struct mount *mp; 2073 1.25 fvdl { 2074 1.25 fvdl register struct vnode *vp, *nvp; 2075 1.25 fvdl register struct buf *bp, *nbp; 2076 1.25 fvdl int s; 2077 1.25 fvdl 2078 1.25 fvdl s = splbio(); 2079 1.25 fvdl loop: 2080 1.25 fvdl for (vp = mp->mnt_vnodelist.lh_first; vp; vp = nvp) { 2081 1.25 fvdl if (vp->v_mount != mp) /* Paranoia */ 2082 1.25 fvdl goto loop; 2083 1.25 fvdl nvp = vp->v_mntvnodes.le_next; 2084 1.25 fvdl for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { 2085 1.25 fvdl nbp = bp->b_vnbufs.le_next; 2086 1.25 fvdl if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT)) 2087 1.25 fvdl == (B_DELWRI | B_NEEDCOMMIT)) 2088 1.25 fvdl bp->b_flags &= ~B_NEEDCOMMIT; 2089 1.25 fvdl } 2090 1.25 fvdl } 2091 1.25 fvdl splx(s); 2092 1.25 fvdl } 2093 1.25 fvdl 2094 1.25 fvdl /* 2095 1.25 fvdl * Map errnos to NFS error numbers. For Version 3 also filter out error 2096 1.25 fvdl * numbers not specified for the associated procedure. 2097 1.25 fvdl */ 2098 1.25 fvdl int 2099 1.25 fvdl nfsrv_errmap(nd, err) 2100 1.25 fvdl struct nfsrv_descript *nd; 2101 1.25 fvdl register int err; 2102 1.25 fvdl { 2103 1.25 fvdl register short *defaulterrp, *errp; 2104 1.25 fvdl 2105 1.25 fvdl if (nd->nd_flag & ND_NFSV3) { 2106 1.25 fvdl if (nd->nd_procnum <= NFSPROC_COMMIT) { 2107 1.25 fvdl errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum]; 2108 1.25 fvdl while (*++errp) { 2109 1.25 fvdl if (*errp == err) 2110 1.25 fvdl return (err); 2111 1.25 fvdl else if (*errp > err) 2112 1.25 fvdl break; 2113 1.25 fvdl } 2114 1.25 fvdl return ((int)*defaulterrp); 2115 1.25 fvdl } else 2116 1.25 fvdl return (err & 0xffff); 2117 1.25 fvdl } 2118 1.25 fvdl if (err <= ELAST) 2119 1.25 fvdl return ((int)nfsrv_v2errmap[err - 1]); 2120 1.25 fvdl return (NFSERR_IO); 2121 1.25 fvdl } 2122 1.25 fvdl 2123 1.25 fvdl /* 2124 1.25 fvdl * Sort the group list in increasing numerical order. 2125 1.25 fvdl * (Insertion sort by Chris Torek, who was grossed out by the bubble sort 2126 1.25 fvdl * that used to be here.) 2127 1.25 fvdl */ 2128 1.25 fvdl void 2129 1.25 fvdl nfsrvw_sort(list, num) 2130 1.25 fvdl register gid_t *list; 2131 1.25 fvdl register int num; 2132 1.25 fvdl { 2133 1.25 fvdl register int i, j; 2134 1.25 fvdl gid_t v; 2135 1.25 fvdl 2136 1.25 fvdl /* Insertion sort. */ 2137 1.25 fvdl for (i = 1; i < num; i++) { 2138 1.25 fvdl v = list[i]; 2139 1.25 fvdl /* find correct slot for value v, moving others up */ 2140 1.25 fvdl for (j = i; --j >= 0 && v < list[j];) 2141 1.25 fvdl list[j + 1] = list[j]; 2142 1.25 fvdl list[j + 1] = v; 2143 1.25 fvdl } 2144 1.25 fvdl } 2145 1.25 fvdl 2146 1.25 fvdl /* 2147 1.25 fvdl * copy credentials making sure that the result can be compared with bcmp(). 2148 1.25 fvdl */ 2149 1.25 fvdl void 2150 1.25 fvdl nfsrv_setcred(incred, outcred) 2151 1.25 fvdl register struct ucred *incred, *outcred; 2152 1.25 fvdl { 2153 1.25 fvdl register int i; 2154 1.25 fvdl 2155 1.25 fvdl bzero((caddr_t)outcred, sizeof (struct ucred)); 2156 1.25 fvdl outcred->cr_ref = 1; 2157 1.25 fvdl outcred->cr_uid = incred->cr_uid; 2158 1.25 fvdl outcred->cr_gid = incred->cr_gid; 2159 1.25 fvdl outcred->cr_ngroups = incred->cr_ngroups; 2160 1.25 fvdl for (i = 0; i < incred->cr_ngroups; i++) 2161 1.25 fvdl outcred->cr_groups[i] = incred->cr_groups[i]; 2162 1.25 fvdl nfsrvw_sort(outcred->cr_groups, outcred->cr_ngroups); 2163 1.1 cgd } 2164
Indexes created Mon Sep 22 13:09:51 GMT 2025