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180c0ba3 | 1 | /* |
1e5b8b15 KB |
2 | * Copyright (c) 1989, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
180c0ba3 KM |
4 | * |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Rick Macklem at The University of Guelph. | |
7 | * | |
dbf0c423 | 8 | * %sccs.include.redist.c% |
180c0ba3 | 9 | * |
91e07565 | 10 | * @(#)nfs_subs.c 8.6 (Berkeley) %G% |
180c0ba3 KM |
11 | */ |
12 | ||
4acac3d6 | 13 | |
180c0ba3 KM |
14 | /* |
15 | * These functions support the macros and help fiddle mbuf chains for | |
16 | * the nfs op functions. They do things like create the rpc header and | |
17 | * copy data between mbuf chains and uio lists. | |
18 | */ | |
400a1380 KM |
19 | #include <sys/param.h> |
20 | #include <sys/proc.h> | |
400a1380 KM |
21 | #include <sys/systm.h> |
22 | #include <sys/kernel.h> | |
23 | #include <sys/mount.h> | |
400a1380 KM |
24 | #include <sys/vnode.h> |
25 | #include <sys/namei.h> | |
26 | #include <sys/mbuf.h> | |
400a1380 | 27 | #include <sys/socket.h> |
0a5bc49c | 28 | #include <sys/stat.h> |
4acac3d6 KM |
29 | #include <sys/malloc.h> |
30 | #ifdef VFS_LKM | |
31 | #include <sys/sysent.h> | |
32 | #include <sys/syscall.h> | |
33 | #endif | |
34 | ||
35 | #include <vm/vm.h> | |
400a1380 | 36 | |
400a1380 | 37 | #include <nfs/rpcv2.h> |
4acac3d6 | 38 | #include <nfs/nfsproto.h> |
400a1380 KM |
39 | #include <nfs/nfsnode.h> |
40 | #include <nfs/nfs.h> | |
41 | #include <nfs/xdr_subs.h> | |
42 | #include <nfs/nfsm_subs.h> | |
43 | #include <nfs/nfsmount.h> | |
44 | #include <nfs/nqnfs.h> | |
45 | #include <nfs/nfsrtt.h> | |
180c0ba3 | 46 | |
d60a94eb KM |
47 | #include <miscfs/specfs/specdev.h> |
48 | ||
8471f303 KM |
49 | #include <netinet/in.h> |
50 | #ifdef ISO | |
51 | #include <netiso/iso.h> | |
52 | #endif | |
53 | ||
180c0ba3 KM |
54 | /* |
55 | * Data items converted to xdr at startup, since they are constant | |
56 | * This is kinda hokey, but may save a little time doing byte swaps | |
57 | */ | |
180c0ba3 | 58 | u_long nfs_xdrneg1; |
2c5b44a2 | 59 | u_long rpc_call, rpc_vers, rpc_reply, rpc_msgdenied, rpc_autherr, |
4acac3d6 | 60 | rpc_mismatch, rpc_auth_unix, rpc_msgaccepted, |
2c5b44a2 | 61 | rpc_auth_kerb; |
4acac3d6 | 62 | u_long nfs_prog, nqnfs_prog, nfs_true, nfs_false; |
2c5b44a2 | 63 | |
180c0ba3 | 64 | /* And other global data */ |
2c5b44a2 | 65 | static u_long nfs_xid = 0; |
4acac3d6 KM |
66 | enum vtype nv2tov_type[8] = { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VNON, VNON }; |
67 | enum vtype nv3tov_type[8]={ VNON, VREG, VDIR, VBLK, VCHR, VLNK, VSOCK, VFIFO }; | |
68 | int nfs_mount_type; | |
69 | int nfs_ticks; | |
70 | ||
71 | /* | |
72 | * Mapping of old NFS Version 2 RPC numbers to generic numbers. | |
73 | */ | |
74 | int nfsv3_procid[NFS_NPROCS] = { | |
75 | NFSPROC_NULL, | |
76 | NFSPROC_GETATTR, | |
77 | NFSPROC_SETATTR, | |
78 | NFSPROC_NOOP, | |
79 | NFSPROC_LOOKUP, | |
80 | NFSPROC_READLINK, | |
81 | NFSPROC_READ, | |
82 | NFSPROC_NOOP, | |
83 | NFSPROC_WRITE, | |
84 | NFSPROC_CREATE, | |
85 | NFSPROC_REMOVE, | |
86 | NFSPROC_RENAME, | |
87 | NFSPROC_LINK, | |
88 | NFSPROC_SYMLINK, | |
89 | NFSPROC_MKDIR, | |
90 | NFSPROC_RMDIR, | |
91 | NFSPROC_READDIR, | |
92 | NFSPROC_FSSTAT, | |
93 | NFSPROC_NOOP, | |
94 | NFSPROC_NOOP, | |
95 | NFSPROC_NOOP, | |
96 | NFSPROC_NOOP, | |
97 | NFSPROC_NOOP, | |
98 | NFSPROC_NOOP, | |
99 | NFSPROC_NOOP, | |
100 | NFSPROC_NOOP | |
101 | }; | |
102 | ||
103 | /* | |
104 | * and the reverse mapping from generic to Version 2 procedure numbers | |
105 | */ | |
106 | int nfsv2_procid[NFS_NPROCS] = { | |
107 | NFSV2PROC_NULL, | |
108 | NFSV2PROC_GETATTR, | |
109 | NFSV2PROC_SETATTR, | |
110 | NFSV2PROC_LOOKUP, | |
111 | NFSV2PROC_NOOP, | |
112 | NFSV2PROC_READLINK, | |
113 | NFSV2PROC_READ, | |
114 | NFSV2PROC_WRITE, | |
115 | NFSV2PROC_CREATE, | |
116 | NFSV2PROC_MKDIR, | |
117 | NFSV2PROC_SYMLINK, | |
118 | NFSV2PROC_CREATE, | |
119 | NFSV2PROC_REMOVE, | |
120 | NFSV2PROC_RMDIR, | |
121 | NFSV2PROC_RENAME, | |
122 | NFSV2PROC_LINK, | |
123 | NFSV2PROC_READDIR, | |
124 | NFSV2PROC_NOOP, | |
125 | NFSV2PROC_STATFS, | |
126 | NFSV2PROC_NOOP, | |
127 | NFSV2PROC_NOOP, | |
128 | NFSV2PROC_NOOP, | |
129 | NFSV2PROC_NOOP, | |
130 | NFSV2PROC_NOOP, | |
131 | NFSV2PROC_NOOP, | |
132 | NFSV2PROC_NOOP, | |
133 | }; | |
134 | ||
135 | /* | |
136 | * Maps errno values to nfs error numbers. | |
137 | * Use NFSERR_IO as the catch all for ones not specifically defined in | |
138 | * RFC 1094. | |
139 | */ | |
140 | static u_char nfsrv_v2errmap[ELAST] = { | |
141 | NFSERR_PERM, NFSERR_NOENT, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
142 | NFSERR_NXIO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
143 | NFSERR_IO, NFSERR_IO, NFSERR_ACCES, NFSERR_IO, NFSERR_IO, | |
144 | NFSERR_IO, NFSERR_EXIST, NFSERR_IO, NFSERR_NODEV, NFSERR_NOTDIR, | |
145 | NFSERR_ISDIR, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
146 | NFSERR_IO, NFSERR_FBIG, NFSERR_NOSPC, NFSERR_IO, NFSERR_ROFS, | |
147 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
148 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
149 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
150 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
151 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
152 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
153 | NFSERR_IO, NFSERR_IO, NFSERR_NAMETOL, NFSERR_IO, NFSERR_IO, | |
154 | NFSERR_NOTEMPTY, NFSERR_IO, NFSERR_IO, NFSERR_DQUOT, NFSERR_STALE, | |
155 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
156 | NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, NFSERR_IO, | |
157 | NFSERR_IO, | |
158 | }; | |
159 | ||
160 | /* | |
161 | * Maps errno values to nfs error numbers. | |
162 | * Although it is not obvious whether or not NFS clients really care if | |
163 | * a returned error value is in the specified list for the procedure, the | |
164 | * safest thing to do is filter them appropriately. For Version 2, the | |
165 | * X/Open XNFS document is the only specification that defines error values | |
166 | * for each RPC (The RFC simply lists all possible error values for all RPCs), | |
167 | * so I have decided to not do this for Version 2. | |
168 | * The first entry is the default error return and the rest are the valid | |
169 | * errors for that RPC in increasing numeric order. | |
170 | */ | |
171 | static short nfsv3err_null[] = { | |
172 | 0, | |
173 | 0, | |
174 | }; | |
175 | ||
176 | static short nfsv3err_getattr[] = { | |
177 | NFSERR_IO, | |
178 | NFSERR_IO, | |
179 | NFSERR_STALE, | |
180 | NFSERR_BADHANDLE, | |
181 | NFSERR_SERVERFAULT, | |
182 | 0, | |
183 | }; | |
184 | ||
185 | static short nfsv3err_setattr[] = { | |
186 | NFSERR_IO, | |
187 | NFSERR_PERM, | |
188 | NFSERR_IO, | |
189 | NFSERR_ACCES, | |
190 | NFSERR_INVAL, | |
191 | NFSERR_NOSPC, | |
192 | NFSERR_ROFS, | |
193 | NFSERR_DQUOT, | |
194 | NFSERR_STALE, | |
195 | NFSERR_BADHANDLE, | |
196 | NFSERR_NOT_SYNC, | |
197 | NFSERR_SERVERFAULT, | |
198 | 0, | |
199 | }; | |
200 | ||
201 | static short nfsv3err_lookup[] = { | |
202 | NFSERR_IO, | |
203 | NFSERR_NOENT, | |
204 | NFSERR_IO, | |
205 | NFSERR_ACCES, | |
206 | NFSERR_NOTDIR, | |
207 | NFSERR_NAMETOL, | |
208 | NFSERR_STALE, | |
209 | NFSERR_BADHANDLE, | |
210 | NFSERR_SERVERFAULT, | |
211 | 0, | |
212 | }; | |
213 | ||
214 | static short nfsv3err_access[] = { | |
215 | NFSERR_IO, | |
216 | NFSERR_IO, | |
217 | NFSERR_STALE, | |
218 | NFSERR_BADHANDLE, | |
219 | NFSERR_SERVERFAULT, | |
220 | 0, | |
221 | }; | |
222 | ||
223 | static short nfsv3err_readlink[] = { | |
224 | NFSERR_IO, | |
225 | NFSERR_IO, | |
226 | NFSERR_ACCES, | |
227 | NFSERR_INVAL, | |
228 | NFSERR_STALE, | |
229 | NFSERR_BADHANDLE, | |
230 | NFSERR_NOTSUPP, | |
231 | NFSERR_SERVERFAULT, | |
232 | 0, | |
233 | }; | |
234 | ||
235 | static short nfsv3err_read[] = { | |
236 | NFSERR_IO, | |
237 | NFSERR_IO, | |
238 | NFSERR_NXIO, | |
239 | NFSERR_ACCES, | |
240 | NFSERR_INVAL, | |
241 | NFSERR_STALE, | |
242 | NFSERR_BADHANDLE, | |
243 | NFSERR_SERVERFAULT, | |
244 | 0, | |
245 | }; | |
246 | ||
247 | static short nfsv3err_write[] = { | |
248 | NFSERR_IO, | |
249 | NFSERR_IO, | |
250 | NFSERR_ACCES, | |
251 | NFSERR_INVAL, | |
252 | NFSERR_FBIG, | |
253 | NFSERR_NOSPC, | |
254 | NFSERR_ROFS, | |
255 | NFSERR_DQUOT, | |
256 | NFSERR_STALE, | |
257 | NFSERR_BADHANDLE, | |
258 | NFSERR_SERVERFAULT, | |
259 | 0, | |
260 | }; | |
261 | ||
262 | static short nfsv3err_create[] = { | |
263 | NFSERR_IO, | |
264 | NFSERR_IO, | |
265 | NFSERR_ACCES, | |
266 | NFSERR_EXIST, | |
267 | NFSERR_NOTDIR, | |
268 | NFSERR_NOSPC, | |
269 | NFSERR_ROFS, | |
270 | NFSERR_NAMETOL, | |
271 | NFSERR_DQUOT, | |
272 | NFSERR_STALE, | |
273 | NFSERR_BADHANDLE, | |
274 | NFSERR_NOTSUPP, | |
275 | NFSERR_SERVERFAULT, | |
276 | 0, | |
277 | }; | |
278 | ||
279 | static short nfsv3err_mkdir[] = { | |
280 | NFSERR_IO, | |
281 | NFSERR_IO, | |
282 | NFSERR_ACCES, | |
283 | NFSERR_EXIST, | |
284 | NFSERR_NOTDIR, | |
285 | NFSERR_NOSPC, | |
286 | NFSERR_ROFS, | |
287 | NFSERR_NAMETOL, | |
288 | NFSERR_DQUOT, | |
289 | NFSERR_STALE, | |
290 | NFSERR_BADHANDLE, | |
291 | NFSERR_NOTSUPP, | |
292 | NFSERR_SERVERFAULT, | |
293 | 0, | |
294 | }; | |
295 | ||
296 | static short nfsv3err_symlink[] = { | |
297 | NFSERR_IO, | |
298 | NFSERR_IO, | |
299 | NFSERR_ACCES, | |
300 | NFSERR_EXIST, | |
301 | NFSERR_NOTDIR, | |
302 | NFSERR_NOSPC, | |
303 | NFSERR_ROFS, | |
304 | NFSERR_NAMETOL, | |
305 | NFSERR_DQUOT, | |
306 | NFSERR_STALE, | |
307 | NFSERR_BADHANDLE, | |
308 | NFSERR_NOTSUPP, | |
309 | NFSERR_SERVERFAULT, | |
310 | 0, | |
311 | }; | |
312 | ||
313 | static short nfsv3err_mknod[] = { | |
314 | NFSERR_IO, | |
315 | NFSERR_IO, | |
316 | NFSERR_ACCES, | |
317 | NFSERR_EXIST, | |
318 | NFSERR_NOTDIR, | |
319 | NFSERR_NOSPC, | |
320 | NFSERR_ROFS, | |
321 | NFSERR_NAMETOL, | |
322 | NFSERR_DQUOT, | |
323 | NFSERR_STALE, | |
324 | NFSERR_BADHANDLE, | |
325 | NFSERR_NOTSUPP, | |
326 | NFSERR_SERVERFAULT, | |
327 | NFSERR_BADTYPE, | |
328 | 0, | |
329 | }; | |
330 | ||
331 | static short nfsv3err_remove[] = { | |
332 | NFSERR_IO, | |
333 | NFSERR_NOENT, | |
334 | NFSERR_IO, | |
335 | NFSERR_ACCES, | |
336 | NFSERR_NOTDIR, | |
337 | NFSERR_ROFS, | |
338 | NFSERR_NAMETOL, | |
339 | NFSERR_STALE, | |
340 | NFSERR_BADHANDLE, | |
341 | NFSERR_SERVERFAULT, | |
342 | 0, | |
343 | }; | |
344 | ||
345 | static short nfsv3err_rmdir[] = { | |
346 | NFSERR_IO, | |
347 | NFSERR_NOENT, | |
348 | NFSERR_IO, | |
349 | NFSERR_ACCES, | |
350 | NFSERR_EXIST, | |
351 | NFSERR_NOTDIR, | |
352 | NFSERR_INVAL, | |
353 | NFSERR_ROFS, | |
354 | NFSERR_NAMETOL, | |
355 | NFSERR_NOTEMPTY, | |
356 | NFSERR_STALE, | |
357 | NFSERR_BADHANDLE, | |
358 | NFSERR_NOTSUPP, | |
359 | NFSERR_SERVERFAULT, | |
360 | 0, | |
361 | }; | |
362 | ||
363 | static short nfsv3err_rename[] = { | |
364 | NFSERR_IO, | |
365 | NFSERR_NOENT, | |
366 | NFSERR_IO, | |
367 | NFSERR_ACCES, | |
368 | NFSERR_EXIST, | |
369 | NFSERR_XDEV, | |
370 | NFSERR_NOTDIR, | |
371 | NFSERR_ISDIR, | |
372 | NFSERR_INVAL, | |
373 | NFSERR_NOSPC, | |
374 | NFSERR_ROFS, | |
375 | NFSERR_MLINK, | |
376 | NFSERR_NAMETOL, | |
377 | NFSERR_NOTEMPTY, | |
378 | NFSERR_DQUOT, | |
379 | NFSERR_STALE, | |
380 | NFSERR_BADHANDLE, | |
381 | NFSERR_NOTSUPP, | |
382 | NFSERR_SERVERFAULT, | |
383 | 0, | |
384 | }; | |
385 | ||
386 | static short nfsv3err_link[] = { | |
387 | NFSERR_IO, | |
388 | NFSERR_IO, | |
389 | NFSERR_ACCES, | |
390 | NFSERR_EXIST, | |
391 | NFSERR_XDEV, | |
392 | NFSERR_NOTDIR, | |
393 | NFSERR_INVAL, | |
394 | NFSERR_NOSPC, | |
395 | NFSERR_ROFS, | |
396 | NFSERR_MLINK, | |
397 | NFSERR_NAMETOL, | |
398 | NFSERR_DQUOT, | |
399 | NFSERR_STALE, | |
400 | NFSERR_BADHANDLE, | |
401 | NFSERR_NOTSUPP, | |
402 | NFSERR_SERVERFAULT, | |
403 | 0, | |
404 | }; | |
405 | ||
406 | static short nfsv3err_readdir[] = { | |
407 | NFSERR_IO, | |
408 | NFSERR_IO, | |
409 | NFSERR_ACCES, | |
410 | NFSERR_NOTDIR, | |
411 | NFSERR_STALE, | |
412 | NFSERR_BADHANDLE, | |
413 | NFSERR_BAD_COOKIE, | |
414 | NFSERR_TOOSMALL, | |
415 | NFSERR_SERVERFAULT, | |
416 | 0, | |
417 | }; | |
418 | ||
419 | static short nfsv3err_readdirplus[] = { | |
420 | NFSERR_IO, | |
421 | NFSERR_IO, | |
422 | NFSERR_ACCES, | |
423 | NFSERR_NOTDIR, | |
424 | NFSERR_STALE, | |
425 | NFSERR_BADHANDLE, | |
426 | NFSERR_BAD_COOKIE, | |
427 | NFSERR_NOTSUPP, | |
428 | NFSERR_TOOSMALL, | |
429 | NFSERR_SERVERFAULT, | |
430 | 0, | |
431 | }; | |
432 | ||
433 | static short nfsv3err_fsstat[] = { | |
434 | NFSERR_IO, | |
435 | NFSERR_IO, | |
436 | NFSERR_STALE, | |
437 | NFSERR_BADHANDLE, | |
438 | NFSERR_SERVERFAULT, | |
439 | 0, | |
440 | }; | |
441 | ||
442 | static short nfsv3err_fsinfo[] = { | |
443 | NFSERR_STALE, | |
444 | NFSERR_STALE, | |
445 | NFSERR_BADHANDLE, | |
446 | NFSERR_SERVERFAULT, | |
447 | 0, | |
448 | }; | |
449 | ||
450 | static short nfsv3err_pathconf[] = { | |
451 | NFSERR_STALE, | |
452 | NFSERR_STALE, | |
453 | NFSERR_BADHANDLE, | |
454 | NFSERR_SERVERFAULT, | |
455 | 0, | |
456 | }; | |
457 | ||
458 | static short nfsv3err_commit[] = { | |
459 | NFSERR_IO, | |
460 | NFSERR_IO, | |
461 | NFSERR_STALE, | |
462 | NFSERR_BADHANDLE, | |
463 | NFSERR_SERVERFAULT, | |
464 | 0, | |
465 | }; | |
466 | ||
467 | static short *nfsrv_v3errmap[] = { | |
468 | nfsv3err_null, | |
469 | nfsv3err_getattr, | |
470 | nfsv3err_setattr, | |
471 | nfsv3err_lookup, | |
472 | nfsv3err_access, | |
473 | nfsv3err_readlink, | |
474 | nfsv3err_read, | |
475 | nfsv3err_write, | |
476 | nfsv3err_create, | |
477 | nfsv3err_mkdir, | |
478 | nfsv3err_symlink, | |
479 | nfsv3err_mknod, | |
480 | nfsv3err_remove, | |
481 | nfsv3err_rmdir, | |
482 | nfsv3err_rename, | |
483 | nfsv3err_link, | |
484 | nfsv3err_readdir, | |
485 | nfsv3err_readdirplus, | |
486 | nfsv3err_fsstat, | |
487 | nfsv3err_fsinfo, | |
488 | nfsv3err_pathconf, | |
489 | nfsv3err_commit, | |
490 | }; | |
491 | ||
f0f1cbaa | 492 | extern struct proc *nfs_iodwant[NFS_MAXASYNCDAEMON]; |
2c5b44a2 | 493 | extern struct nfsrtt nfsrtt; |
2c5b44a2 | 494 | extern time_t nqnfsstarttime; |
2c5b44a2 KM |
495 | extern int nqsrv_clockskew; |
496 | extern int nqsrv_writeslack; | |
497 | extern int nqsrv_maxlease; | |
4acac3d6 KM |
498 | extern struct nfsstats nfsstats; |
499 | extern int nqnfs_piggy[NFS_NPROCS]; | |
500 | extern nfstype nfsv2_type[9]; | |
501 | extern nfstype nfsv3_type[9]; | |
502 | extern struct nfsnodehashhead *nfsnodehashtbl; | |
503 | extern u_long nfsnodehash; | |
504 | ||
505 | #ifdef VFS_LKM | |
506 | struct getfh_args; | |
507 | extern int getfh(struct proc *, struct getfh_args *, int *); | |
508 | struct nfssvc_args; | |
509 | extern int nfssvc(struct proc *, struct nfssvc_args *, int *); | |
510 | #endif | |
7a398e6f | 511 | |
0bb2c2fc | 512 | LIST_HEAD(nfsnodehashhead, nfsnode); |
0bb2c2fc | 513 | |
180c0ba3 KM |
514 | /* |
515 | * Create the header for an rpc request packet | |
180c0ba3 KM |
516 | * The hsiz is the size of the rest of the nfs request header. |
517 | * (just used to decide if a cluster is a good idea) | |
180c0ba3 | 518 | */ |
2c5b44a2 KM |
519 | struct mbuf * |
520 | nfsm_reqh(vp, procid, hsiz, bposp) | |
521 | struct vnode *vp; | |
0bd503ad | 522 | u_long procid; |
180c0ba3 | 523 | int hsiz; |
2c5b44a2 | 524 | caddr_t *bposp; |
180c0ba3 | 525 | { |
2c5b44a2 | 526 | register struct mbuf *mb; |
25bf04c4 | 527 | register u_long *tl; |
2c5b44a2 KM |
528 | register caddr_t bpos; |
529 | struct mbuf *mb2; | |
530 | struct nfsmount *nmp; | |
531 | int nqflag; | |
180c0ba3 | 532 | |
2c5b44a2 KM |
533 | MGET(mb, M_WAIT, MT_DATA); |
534 | if (hsiz >= MINCLSIZE) | |
535 | MCLGET(mb, M_WAIT); | |
536 | mb->m_len = 0; | |
537 | bpos = mtod(mb, caddr_t); | |
538 | ||
180c0ba3 | 539 | /* |
2c5b44a2 | 540 | * For NQNFS, add lease request. |
180c0ba3 | 541 | */ |
2c5b44a2 KM |
542 | if (vp) { |
543 | nmp = VFSTONFS(vp->v_mount); | |
544 | if (nmp->nm_flag & NFSMNT_NQNFS) { | |
545 | nqflag = NQNFS_NEEDLEASE(vp, procid); | |
546 | if (nqflag) { | |
547 | nfsm_build(tl, u_long *, 2*NFSX_UNSIGNED); | |
548 | *tl++ = txdr_unsigned(nqflag); | |
549 | *tl = txdr_unsigned(nmp->nm_leaseterm); | |
550 | } else { | |
551 | nfsm_build(tl, u_long *, NFSX_UNSIGNED); | |
552 | *tl = 0; | |
553 | } | |
554 | } | |
555 | } | |
556 | /* Finally, return values */ | |
557 | *bposp = bpos; | |
558 | return (mb); | |
559 | } | |
560 | ||
561 | /* | |
562 | * Build the RPC header and fill in the authorization info. | |
563 | * The authorization string argument is only used when the credentials | |
564 | * come from outside of the kernel. | |
565 | * Returns the head of the mbuf list. | |
566 | */ | |
567 | struct mbuf * | |
4acac3d6 KM |
568 | nfsm_rpchead(cr, nmflag, procid, auth_type, auth_len, auth_str, verf_len, |
569 | verf_str, mrest, mrest_len, mbp, xidp) | |
2c5b44a2 | 570 | register struct ucred *cr; |
4acac3d6 | 571 | int nmflag; |
2c5b44a2 KM |
572 | int procid; |
573 | int auth_type; | |
574 | int auth_len; | |
575 | char *auth_str; | |
4acac3d6 KM |
576 | int verf_len; |
577 | char *verf_str; | |
2c5b44a2 KM |
578 | struct mbuf *mrest; |
579 | int mrest_len; | |
580 | struct mbuf **mbp; | |
581 | u_long *xidp; | |
582 | { | |
583 | register struct mbuf *mb; | |
584 | register u_long *tl; | |
585 | register caddr_t bpos; | |
586 | register int i; | |
587 | struct mbuf *mreq, *mb2; | |
588 | int siz, grpsiz, authsiz; | |
589 | ||
590 | authsiz = nfsm_rndup(auth_len); | |
2c5b44a2 | 591 | MGETHDR(mb, M_WAIT, MT_DATA); |
4acac3d6 | 592 | if ((authsiz + 10 * NFSX_UNSIGNED) >= MINCLSIZE) { |
2c5b44a2 | 593 | MCLGET(mb, M_WAIT); |
4acac3d6 KM |
594 | } else if ((authsiz + 10 * NFSX_UNSIGNED) < MHLEN) { |
595 | MH_ALIGN(mb, authsiz + 10 * NFSX_UNSIGNED); | |
2c5b44a2 | 596 | } else { |
4acac3d6 | 597 | MH_ALIGN(mb, 8 * NFSX_UNSIGNED); |
180c0ba3 | 598 | } |
2c5b44a2 KM |
599 | mb->m_len = 0; |
600 | mreq = mb; | |
601 | bpos = mtod(mb, caddr_t); | |
602 | ||
603 | /* | |
604 | * First the RPC header. | |
605 | */ | |
4acac3d6 | 606 | nfsm_build(tl, u_long *, 8 * NFSX_UNSIGNED); |
2c5b44a2 KM |
607 | if (++nfs_xid == 0) |
608 | nfs_xid++; | |
609 | *tl++ = *xidp = txdr_unsigned(nfs_xid); | |
25bf04c4 KM |
610 | *tl++ = rpc_call; |
611 | *tl++ = rpc_vers; | |
4acac3d6 | 612 | if (nmflag & NFSMNT_NQNFS) { |
2c5b44a2 | 613 | *tl++ = txdr_unsigned(NQNFS_PROG); |
4acac3d6 | 614 | *tl++ = txdr_unsigned(NQNFS_VER3); |
180c0ba3 | 615 | } else { |
2c5b44a2 | 616 | *tl++ = txdr_unsigned(NFS_PROG); |
4acac3d6 KM |
617 | if (nmflag & NFSMNT_NFSV3) |
618 | *tl++ = txdr_unsigned(NFS_VER3); | |
619 | else | |
620 | *tl++ = txdr_unsigned(NFS_VER2); | |
180c0ba3 | 621 | } |
4acac3d6 KM |
622 | if (nmflag & NFSMNT_NFSV3) |
623 | *tl++ = txdr_unsigned(procid); | |
624 | else | |
625 | *tl++ = txdr_unsigned(nfsv2_procid[procid]); | |
2c5b44a2 KM |
626 | |
627 | /* | |
628 | * And then the authorization cred. | |
629 | */ | |
630 | *tl++ = txdr_unsigned(auth_type); | |
631 | *tl = txdr_unsigned(authsiz); | |
632 | switch (auth_type) { | |
633 | case RPCAUTH_UNIX: | |
634 | nfsm_build(tl, u_long *, auth_len); | |
635 | *tl++ = 0; /* stamp ?? */ | |
636 | *tl++ = 0; /* NULL hostname */ | |
637 | *tl++ = txdr_unsigned(cr->cr_uid); | |
638 | *tl++ = txdr_unsigned(cr->cr_groups[0]); | |
639 | grpsiz = (auth_len >> 2) - 5; | |
640 | *tl++ = txdr_unsigned(grpsiz); | |
641 | for (i = 1; i <= grpsiz; i++) | |
642 | *tl++ = txdr_unsigned(cr->cr_groups[i]); | |
643 | break; | |
4acac3d6 | 644 | case RPCAUTH_KERB4: |
2c5b44a2 KM |
645 | siz = auth_len; |
646 | while (siz > 0) { | |
647 | if (M_TRAILINGSPACE(mb) == 0) { | |
648 | MGET(mb2, M_WAIT, MT_DATA); | |
649 | if (siz >= MINCLSIZE) | |
650 | MCLGET(mb2, M_WAIT); | |
651 | mb->m_next = mb2; | |
652 | mb = mb2; | |
653 | mb->m_len = 0; | |
654 | bpos = mtod(mb, caddr_t); | |
655 | } | |
65ae7af4 | 656 | i = min(siz, M_TRAILINGSPACE(mb)); |
2c5b44a2 KM |
657 | bcopy(auth_str, bpos, i); |
658 | mb->m_len += i; | |
659 | auth_str += i; | |
660 | bpos += i; | |
661 | siz -= i; | |
662 | } | |
6d73426c | 663 | if ((siz = (nfsm_rndup(auth_len) - auth_len)) > 0) { |
2c5b44a2 KM |
664 | for (i = 0; i < siz; i++) |
665 | *bpos++ = '\0'; | |
666 | mb->m_len += siz; | |
667 | } | |
668 | break; | |
669 | }; | |
4acac3d6 KM |
670 | |
671 | /* | |
672 | * And the verifier... | |
673 | */ | |
674 | nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED); | |
675 | if (verf_str) { | |
676 | *tl++ = txdr_unsigned(RPCAUTH_KERB4); | |
677 | *tl = txdr_unsigned(verf_len); | |
678 | siz = verf_len; | |
679 | while (siz > 0) { | |
680 | if (M_TRAILINGSPACE(mb) == 0) { | |
681 | MGET(mb2, M_WAIT, MT_DATA); | |
682 | if (siz >= MINCLSIZE) | |
683 | MCLGET(mb2, M_WAIT); | |
684 | mb->m_next = mb2; | |
685 | mb = mb2; | |
686 | mb->m_len = 0; | |
687 | bpos = mtod(mb, caddr_t); | |
688 | } | |
689 | i = min(siz, M_TRAILINGSPACE(mb)); | |
690 | bcopy(verf_str, bpos, i); | |
691 | mb->m_len += i; | |
692 | verf_str += i; | |
693 | bpos += i; | |
694 | siz -= i; | |
695 | } | |
696 | if ((siz = (nfsm_rndup(verf_len) - verf_len)) > 0) { | |
697 | for (i = 0; i < siz; i++) | |
698 | *bpos++ = '\0'; | |
699 | mb->m_len += siz; | |
700 | } | |
701 | } else { | |
702 | *tl++ = txdr_unsigned(RPCAUTH_NULL); | |
703 | *tl = 0; | |
704 | } | |
2c5b44a2 | 705 | mb->m_next = mrest; |
4acac3d6 | 706 | mreq->m_pkthdr.len = authsiz + 10 * NFSX_UNSIGNED + mrest_len; |
2c5b44a2 KM |
707 | mreq->m_pkthdr.rcvif = (struct ifnet *)0; |
708 | *mbp = mb; | |
180c0ba3 KM |
709 | return (mreq); |
710 | } | |
711 | ||
712 | /* | |
713 | * copies mbuf chain to the uio scatter/gather list | |
714 | */ | |
4acac3d6 | 715 | int |
180c0ba3 KM |
716 | nfsm_mbuftouio(mrep, uiop, siz, dpos) |
717 | struct mbuf **mrep; | |
170bfd05 | 718 | register struct uio *uiop; |
180c0ba3 KM |
719 | int siz; |
720 | caddr_t *dpos; | |
721 | { | |
170bfd05 | 722 | register char *mbufcp, *uiocp; |
180c0ba3 KM |
723 | register int xfer, left, len; |
724 | register struct mbuf *mp; | |
180c0ba3 | 725 | long uiosiz, rem; |
f0f1cbaa | 726 | int error = 0; |
180c0ba3 KM |
727 | |
728 | mp = *mrep; | |
729 | mbufcp = *dpos; | |
730 | len = mtod(mp, caddr_t)+mp->m_len-mbufcp; | |
731 | rem = nfsm_rndup(siz)-siz; | |
732 | while (siz > 0) { | |
733 | if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) | |
f0f1cbaa | 734 | return (EFBIG); |
180c0ba3 KM |
735 | left = uiop->uio_iov->iov_len; |
736 | uiocp = uiop->uio_iov->iov_base; | |
737 | if (left > siz) | |
738 | left = siz; | |
739 | uiosiz = left; | |
740 | while (left > 0) { | |
741 | while (len == 0) { | |
742 | mp = mp->m_next; | |
743 | if (mp == NULL) | |
744 | return (EBADRPC); | |
745 | mbufcp = mtod(mp, caddr_t); | |
746 | len = mp->m_len; | |
747 | } | |
748 | xfer = (left > len) ? len : left; | |
749 | #ifdef notdef | |
750 | /* Not Yet.. */ | |
751 | if (uiop->uio_iov->iov_op != NULL) | |
752 | (*(uiop->uio_iov->iov_op)) | |
753 | (mbufcp, uiocp, xfer); | |
754 | else | |
755 | #endif | |
756 | if (uiop->uio_segflg == UIO_SYSSPACE) | |
757 | bcopy(mbufcp, uiocp, xfer); | |
758 | else | |
759 | copyout(mbufcp, uiocp, xfer); | |
760 | left -= xfer; | |
761 | len -= xfer; | |
762 | mbufcp += xfer; | |
763 | uiocp += xfer; | |
24c658f0 | 764 | uiop->uio_offset += xfer; |
180c0ba3 KM |
765 | uiop->uio_resid -= xfer; |
766 | } | |
767 | if (uiop->uio_iov->iov_len <= siz) { | |
768 | uiop->uio_iovcnt--; | |
769 | uiop->uio_iov++; | |
770 | } else { | |
771 | uiop->uio_iov->iov_base += uiosiz; | |
772 | uiop->uio_iov->iov_len -= uiosiz; | |
773 | } | |
774 | siz -= uiosiz; | |
775 | } | |
180c0ba3 KM |
776 | *dpos = mbufcp; |
777 | *mrep = mp; | |
f0f1cbaa KM |
778 | if (rem > 0) { |
779 | if (len < rem) | |
780 | error = nfs_adv(mrep, dpos, rem, len); | |
781 | else | |
782 | *dpos += rem; | |
783 | } | |
784 | return (error); | |
180c0ba3 KM |
785 | } |
786 | ||
787 | /* | |
788 | * copies a uio scatter/gather list to an mbuf chain... | |
789 | */ | |
4acac3d6 | 790 | int |
180c0ba3 KM |
791 | nfsm_uiotombuf(uiop, mq, siz, bpos) |
792 | register struct uio *uiop; | |
793 | struct mbuf **mq; | |
794 | int siz; | |
795 | caddr_t *bpos; | |
796 | { | |
170bfd05 KM |
797 | register char *uiocp; |
798 | register struct mbuf *mp, *mp2; | |
2c5b44a2 | 799 | register int xfer, left, mlen; |
170bfd05 KM |
800 | int uiosiz, clflg, rem; |
801 | char *cp; | |
180c0ba3 KM |
802 | |
803 | if (siz > MLEN) /* or should it >= MCLBYTES ?? */ | |
804 | clflg = 1; | |
805 | else | |
806 | clflg = 0; | |
807 | rem = nfsm_rndup(siz)-siz; | |
2c5b44a2 | 808 | mp = mp2 = *mq; |
180c0ba3 KM |
809 | while (siz > 0) { |
810 | if (uiop->uio_iovcnt <= 0 || uiop->uio_iov == NULL) | |
f0f1cbaa | 811 | return (EINVAL); |
180c0ba3 KM |
812 | left = uiop->uio_iov->iov_len; |
813 | uiocp = uiop->uio_iov->iov_base; | |
814 | if (left > siz) | |
815 | left = siz; | |
816 | uiosiz = left; | |
817 | while (left > 0) { | |
2c5b44a2 KM |
818 | mlen = M_TRAILINGSPACE(mp); |
819 | if (mlen == 0) { | |
820 | MGET(mp, M_WAIT, MT_DATA); | |
821 | if (clflg) | |
822 | MCLGET(mp, M_WAIT); | |
823 | mp->m_len = 0; | |
824 | mp2->m_next = mp; | |
825 | mp2 = mp; | |
826 | mlen = M_TRAILINGSPACE(mp); | |
827 | } | |
828 | xfer = (left > mlen) ? mlen : left; | |
180c0ba3 KM |
829 | #ifdef notdef |
830 | /* Not Yet.. */ | |
831 | if (uiop->uio_iov->iov_op != NULL) | |
832 | (*(uiop->uio_iov->iov_op)) | |
2c5b44a2 | 833 | (uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); |
180c0ba3 KM |
834 | else |
835 | #endif | |
836 | if (uiop->uio_segflg == UIO_SYSSPACE) | |
2c5b44a2 | 837 | bcopy(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); |
180c0ba3 | 838 | else |
2c5b44a2 KM |
839 | copyin(uiocp, mtod(mp, caddr_t)+mp->m_len, xfer); |
840 | mp->m_len += xfer; | |
180c0ba3 KM |
841 | left -= xfer; |
842 | uiocp += xfer; | |
24c658f0 | 843 | uiop->uio_offset += xfer; |
180c0ba3 KM |
844 | uiop->uio_resid -= xfer; |
845 | } | |
846 | if (uiop->uio_iov->iov_len <= siz) { | |
847 | uiop->uio_iovcnt--; | |
848 | uiop->uio_iov++; | |
849 | } else { | |
850 | uiop->uio_iov->iov_base += uiosiz; | |
851 | uiop->uio_iov->iov_len -= uiosiz; | |
852 | } | |
853 | siz -= uiosiz; | |
854 | } | |
855 | if (rem > 0) { | |
2c5b44a2 | 856 | if (rem > M_TRAILINGSPACE(mp)) { |
180c0ba3 KM |
857 | MGET(mp, M_WAIT, MT_DATA); |
858 | mp->m_len = 0; | |
859 | mp2->m_next = mp; | |
860 | } | |
861 | cp = mtod(mp, caddr_t)+mp->m_len; | |
862 | for (left = 0; left < rem; left++) | |
863 | *cp++ = '\0'; | |
864 | mp->m_len += rem; | |
865 | *bpos = cp; | |
866 | } else | |
867 | *bpos = mtod(mp, caddr_t)+mp->m_len; | |
868 | *mq = mp; | |
f0f1cbaa | 869 | return (0); |
180c0ba3 KM |
870 | } |
871 | ||
872 | /* | |
873 | * Help break down an mbuf chain by setting the first siz bytes contiguous | |
874 | * pointed to by returned val. | |
2c5b44a2 | 875 | * This is used by the macros nfsm_dissect and nfsm_dissecton for tough |
180c0ba3 KM |
876 | * cases. (The macros use the vars. dpos and dpos2) |
877 | */ | |
4acac3d6 | 878 | int |
0715155c | 879 | nfsm_disct(mdp, dposp, siz, left, cp2) |
180c0ba3 KM |
880 | struct mbuf **mdp; |
881 | caddr_t *dposp; | |
882 | int siz; | |
883 | int left; | |
180c0ba3 KM |
884 | caddr_t *cp2; |
885 | { | |
886 | register struct mbuf *mp, *mp2; | |
887 | register int siz2, xfer; | |
2c5b44a2 | 888 | register caddr_t p; |
180c0ba3 KM |
889 | |
890 | mp = *mdp; | |
891 | while (left == 0) { | |
892 | *mdp = mp = mp->m_next; | |
893 | if (mp == NULL) | |
f0f1cbaa | 894 | return (EBADRPC); |
180c0ba3 KM |
895 | left = mp->m_len; |
896 | *dposp = mtod(mp, caddr_t); | |
897 | } | |
898 | if (left >= siz) { | |
899 | *cp2 = *dposp; | |
900 | *dposp += siz; | |
180c0ba3 | 901 | } else if (mp->m_next == NULL) { |
f0f1cbaa KM |
902 | return (EBADRPC); |
903 | } else if (siz > MHLEN) { | |
180c0ba3 KM |
904 | panic("nfs S too big"); |
905 | } else { | |
0715155c KM |
906 | MGET(mp2, M_WAIT, MT_DATA); |
907 | mp2->m_next = mp->m_next; | |
908 | mp->m_next = mp2; | |
909 | mp->m_len -= left; | |
910 | mp = mp2; | |
2c5b44a2 KM |
911 | *cp2 = p = mtod(mp, caddr_t); |
912 | bcopy(*dposp, p, left); /* Copy what was left */ | |
180c0ba3 | 913 | siz2 = siz-left; |
2c5b44a2 | 914 | p += left; |
180c0ba3 | 915 | mp2 = mp->m_next; |
f0f1cbaa | 916 | /* Loop around copying up the siz2 bytes */ |
180c0ba3 KM |
917 | while (siz2 > 0) { |
918 | if (mp2 == NULL) | |
919 | return (EBADRPC); | |
920 | xfer = (siz2 > mp2->m_len) ? mp2->m_len : siz2; | |
f0f1cbaa | 921 | if (xfer > 0) { |
2c5b44a2 | 922 | bcopy(mtod(mp2, caddr_t), p, xfer); |
f0f1cbaa KM |
923 | NFSMADV(mp2, xfer); |
924 | mp2->m_len -= xfer; | |
2c5b44a2 | 925 | p += xfer; |
f0f1cbaa KM |
926 | siz2 -= xfer; |
927 | } | |
180c0ba3 KM |
928 | if (siz2 > 0) |
929 | mp2 = mp2->m_next; | |
930 | } | |
931 | mp->m_len = siz; | |
932 | *mdp = mp2; | |
933 | *dposp = mtod(mp2, caddr_t); | |
180c0ba3 | 934 | } |
0bd503ad | 935 | return (0); |
180c0ba3 KM |
936 | } |
937 | ||
938 | /* | |
f0f1cbaa | 939 | * Advance the position in the mbuf chain. |
180c0ba3 | 940 | */ |
4acac3d6 | 941 | int |
180c0ba3 KM |
942 | nfs_adv(mdp, dposp, offs, left) |
943 | struct mbuf **mdp; | |
944 | caddr_t *dposp; | |
945 | int offs; | |
946 | int left; | |
947 | { | |
948 | register struct mbuf *m; | |
949 | register int s; | |
950 | ||
951 | m = *mdp; | |
952 | s = left; | |
953 | while (s < offs) { | |
954 | offs -= s; | |
955 | m = m->m_next; | |
956 | if (m == NULL) | |
f0f1cbaa | 957 | return (EBADRPC); |
180c0ba3 KM |
958 | s = m->m_len; |
959 | } | |
960 | *mdp = m; | |
961 | *dposp = mtod(m, caddr_t)+offs; | |
f0f1cbaa | 962 | return (0); |
180c0ba3 KM |
963 | } |
964 | ||
965 | /* | |
966 | * Copy a string into mbufs for the hard cases... | |
967 | */ | |
4acac3d6 | 968 | int |
180c0ba3 KM |
969 | nfsm_strtmbuf(mb, bpos, cp, siz) |
970 | struct mbuf **mb; | |
971 | char **bpos; | |
972 | char *cp; | |
973 | long siz; | |
974 | { | |
4acac3d6 | 975 | register struct mbuf *m1 = 0, *m2; |
180c0ba3 | 976 | long left, xfer, len, tlen; |
25bf04c4 | 977 | u_long *tl; |
180c0ba3 KM |
978 | int putsize; |
979 | ||
980 | putsize = 1; | |
981 | m2 = *mb; | |
2c5b44a2 | 982 | left = M_TRAILINGSPACE(m2); |
180c0ba3 | 983 | if (left > 0) { |
25bf04c4 KM |
984 | tl = ((u_long *)(*bpos)); |
985 | *tl++ = txdr_unsigned(siz); | |
180c0ba3 KM |
986 | putsize = 0; |
987 | left -= NFSX_UNSIGNED; | |
988 | m2->m_len += NFSX_UNSIGNED; | |
989 | if (left > 0) { | |
25bf04c4 | 990 | bcopy(cp, (caddr_t) tl, left); |
180c0ba3 KM |
991 | siz -= left; |
992 | cp += left; | |
993 | m2->m_len += left; | |
994 | left = 0; | |
995 | } | |
996 | } | |
2c5b44a2 | 997 | /* Loop around adding mbufs */ |
180c0ba3 KM |
998 | while (siz > 0) { |
999 | MGET(m1, M_WAIT, MT_DATA); | |
1000 | if (siz > MLEN) | |
f0f1cbaa | 1001 | MCLGET(m1, M_WAIT); |
180c0ba3 KM |
1002 | m1->m_len = NFSMSIZ(m1); |
1003 | m2->m_next = m1; | |
1004 | m2 = m1; | |
25bf04c4 | 1005 | tl = mtod(m1, u_long *); |
180c0ba3 KM |
1006 | tlen = 0; |
1007 | if (putsize) { | |
25bf04c4 | 1008 | *tl++ = txdr_unsigned(siz); |
180c0ba3 KM |
1009 | m1->m_len -= NFSX_UNSIGNED; |
1010 | tlen = NFSX_UNSIGNED; | |
1011 | putsize = 0; | |
1012 | } | |
1013 | if (siz < m1->m_len) { | |
1014 | len = nfsm_rndup(siz); | |
1015 | xfer = siz; | |
1016 | if (xfer < len) | |
25bf04c4 | 1017 | *(tl+(xfer>>2)) = 0; |
180c0ba3 KM |
1018 | } else { |
1019 | xfer = len = m1->m_len; | |
1020 | } | |
25bf04c4 | 1021 | bcopy(cp, (caddr_t) tl, xfer); |
180c0ba3 KM |
1022 | m1->m_len = len+tlen; |
1023 | siz -= xfer; | |
1024 | cp += xfer; | |
1025 | } | |
1026 | *mb = m1; | |
1027 | *bpos = mtod(m1, caddr_t)+m1->m_len; | |
f0f1cbaa | 1028 | return (0); |
180c0ba3 KM |
1029 | } |
1030 | ||
1031 | /* | |
1032 | * Called once to initialize data structures... | |
1033 | */ | |
4acac3d6 KM |
1034 | int |
1035 | nfs_init(vfsp) | |
1036 | struct vfsconf *vfsp; | |
180c0ba3 KM |
1037 | { |
1038 | register int i; | |
1039 | ||
4acac3d6 KM |
1040 | /* |
1041 | * Check to see if major data structures haven't bloated. | |
1042 | */ | |
1043 | if (sizeof (struct nfsnode) > NFS_NODEALLOC) { | |
1044 | printf("struct nfsnode bloated (> %dbytes)\n", NFS_NODEALLOC); | |
1045 | printf("Try reducing NFS_SMALLFH\n"); | |
1046 | } | |
1047 | if (sizeof (struct nfsmount) > NFS_MNTALLOC) { | |
1048 | printf("struct nfsmount bloated (> %dbytes)\n", NFS_MNTALLOC); | |
1049 | printf("Try reducing NFS_MUIDHASHSIZ\n"); | |
1050 | } | |
1051 | if (sizeof (struct nfssvc_sock) > NFS_SVCALLOC) { | |
1052 | printf("struct nfssvc_sock bloated (> %dbytes)\n",NFS_SVCALLOC); | |
1053 | printf("Try reducing NFS_UIDHASHSIZ\n"); | |
1054 | } | |
1055 | if (sizeof (struct nfsuid) > NFS_UIDALLOC) { | |
1056 | printf("struct nfsuid bloated (> %dbytes)\n",NFS_UIDALLOC); | |
1057 | printf("Try unionizing the nu_nickname and nu_flag fields\n"); | |
1058 | } | |
1059 | nfs_mount_type = vfsp->vfc_typenum; | |
2c5b44a2 | 1060 | nfsrtt.pos = 0; |
180c0ba3 KM |
1061 | rpc_vers = txdr_unsigned(RPC_VER2); |
1062 | rpc_call = txdr_unsigned(RPC_CALL); | |
1063 | rpc_reply = txdr_unsigned(RPC_REPLY); | |
1064 | rpc_msgdenied = txdr_unsigned(RPC_MSGDENIED); | |
1065 | rpc_msgaccepted = txdr_unsigned(RPC_MSGACCEPTED); | |
1066 | rpc_mismatch = txdr_unsigned(RPC_MISMATCH); | |
2c5b44a2 | 1067 | rpc_autherr = txdr_unsigned(RPC_AUTHERR); |
180c0ba3 | 1068 | rpc_auth_unix = txdr_unsigned(RPCAUTH_UNIX); |
4acac3d6 | 1069 | rpc_auth_kerb = txdr_unsigned(RPCAUTH_KERB4); |
180c0ba3 | 1070 | nfs_prog = txdr_unsigned(NFS_PROG); |
4acac3d6 | 1071 | nqnfs_prog = txdr_unsigned(NQNFS_PROG); |
180c0ba3 KM |
1072 | nfs_true = txdr_unsigned(TRUE); |
1073 | nfs_false = txdr_unsigned(FALSE); | |
4acac3d6 KM |
1074 | nfs_xdrneg1 = txdr_unsigned(-1); |
1075 | nfs_ticks = (hz * NFS_TICKINTVL + 500) / 1000; | |
1076 | if (nfs_ticks < 1) | |
1077 | nfs_ticks = 1; | |
ffe6f482 | 1078 | /* Ensure async daemons disabled */ |
f0f1cbaa | 1079 | for (i = 0; i < NFS_MAXASYNCDAEMON; i++) |
ffe6f482 | 1080 | nfs_iodwant[i] = (struct proc *)0; |
736c7794 | 1081 | TAILQ_INIT(&nfs_bufq); |
180c0ba3 | 1082 | nfs_nhinit(); /* Init the nfsnode table */ |
40316215 | 1083 | nfsrv_init(0); /* Init server data structures */ |
e8540f59 | 1084 | nfsrv_initcache(); /* Init the server request cache */ |
2c5b44a2 KM |
1085 | |
1086 | /* | |
1087 | * Initialize the nqnfs server stuff. | |
1088 | */ | |
1089 | if (nqnfsstarttime == 0) { | |
1090 | nqnfsstarttime = boottime.tv_sec + nqsrv_maxlease | |
1091 | + nqsrv_clockskew + nqsrv_writeslack; | |
1092 | NQLOADNOVRAM(nqnfsstarttime); | |
0bb2c2fc KM |
1093 | CIRCLEQ_INIT(&nqtimerhead); |
1094 | nqfhhashtbl = hashinit(NQLCHSZ, M_NQLEASE, &nqfhhash); | |
2c5b44a2 | 1095 | } |
f0f1cbaa KM |
1096 | |
1097 | /* | |
1098 | * Initialize reply list and start timer | |
1099 | */ | |
0bb2c2fc | 1100 | TAILQ_INIT(&nfs_reqq); |
4acac3d6 KM |
1101 | nfs_timer(0); |
1102 | return (0); | |
180c0ba3 KM |
1103 | } |
1104 | ||
180c0ba3 KM |
1105 | /* |
1106 | * Attribute cache routines. | |
1107 | * nfs_loadattrcache() - loads or updates the cache contents from attributes | |
1108 | * that are on the mbuf list | |
1109 | * nfs_getattrcache() - returns valid attributes if found in cache, returns | |
1110 | * error otherwise | |
1111 | */ | |
1112 | ||
1113 | /* | |
e16a8c9b | 1114 | * Load the attribute cache (that lives in the nfsnode entry) with |
180c0ba3 KM |
1115 | * the values on the mbuf list and |
1116 | * Iff vap not NULL | |
1117 | * copy the attributes to *vaper | |
1118 | */ | |
4acac3d6 | 1119 | int |
610357c6 KM |
1120 | nfs_loadattrcache(vpp, mdp, dposp, vaper) |
1121 | struct vnode **vpp; | |
180c0ba3 KM |
1122 | struct mbuf **mdp; |
1123 | caddr_t *dposp; | |
1124 | struct vattr *vaper; | |
1125 | { | |
610357c6 | 1126 | register struct vnode *vp = *vpp; |
180c0ba3 | 1127 | register struct vattr *vap; |
4acac3d6 | 1128 | register struct nfs_fattr *fp; |
9342689a | 1129 | extern int (**spec_nfsv2nodeop_p)(); |
0bb2c2fc KM |
1130 | register struct nfsnode *np; |
1131 | register struct nfsnodehashhead *nhpp; | |
0bd503ad | 1132 | register long t1; |
4acac3d6 KM |
1133 | caddr_t cp2; |
1134 | int error = 0, rdev; | |
0bd503ad | 1135 | struct mbuf *md; |
2c5b44a2 KM |
1136 | enum vtype vtyp; |
1137 | u_short vmode; | |
41f343df | 1138 | struct timespec mtime; |
e16a8c9b | 1139 | struct vnode *nvp; |
4acac3d6 KM |
1140 | quad_t tval; |
1141 | int v3 = NFS_ISV3(vp); | |
180c0ba3 KM |
1142 | |
1143 | md = *mdp; | |
4acac3d6 KM |
1144 | t1 = (mtod(md, caddr_t) + md->m_len) - *dposp; |
1145 | if (error = nfsm_disct(mdp, dposp, NFSX_FATTR(v3), t1, &cp2)) | |
180c0ba3 | 1146 | return (error); |
4acac3d6 KM |
1147 | fp = (struct nfs_fattr *)cp2; |
1148 | if (v3) { | |
1149 | vtyp = nfsv3tov_type(fp->fa_type); | |
1150 | vmode = fxdr_unsigned(u_short, fp->fa_mode); | |
1151 | rdev = makedev(fxdr_unsigned(u_char, fp->fa3_rdev.specdata1), | |
1152 | fxdr_unsigned(u_char, fp->fa3_rdev.specdata2)); | |
1153 | fxdr_nfsv3time(&fp->fa3_mtime, &mtime); | |
41f343df | 1154 | } else { |
4acac3d6 KM |
1155 | vtyp = nfsv2tov_type(fp->fa_type); |
1156 | vmode = fxdr_unsigned(u_short, fp->fa_mode); | |
1157 | if (vtyp == VNON || vtyp == VREG) | |
1158 | vtyp = IFTOVT(vmode); | |
1159 | rdev = fxdr_unsigned(long, fp->fa2_rdev); | |
1160 | fxdr_nfsv2time(&fp->fa2_mtime, &mtime); | |
1161 | ||
1162 | /* | |
1163 | * Really ugly NFSv2 kludge. | |
1164 | */ | |
1165 | if (vtyp == VCHR && rdev == 0xffffffff) | |
1166 | vtyp = VFIFO; | |
41f343df | 1167 | } |
4acac3d6 | 1168 | |
e16a8c9b KM |
1169 | /* |
1170 | * If v_type == VNON it is a new node, so fill in the v_type, | |
1171 | * n_mtime fields. Check to see if it represents a special | |
1172 | * device, and if so, check for a possible alias. Once the | |
1173 | * correct vnode has been obtained, fill in the rest of the | |
1174 | * information. | |
1175 | */ | |
180c0ba3 | 1176 | np = VTONFS(vp); |
e16a8c9b | 1177 | if (vp->v_type == VNON) { |
4acac3d6 | 1178 | vp->v_type = vtyp; |
28543a6e | 1179 | if (vp->v_type == VFIFO) { |
9342689a JH |
1180 | extern int (**fifo_nfsv2nodeop_p)(); |
1181 | vp->v_op = fifo_nfsv2nodeop_p; | |
28543a6e | 1182 | } |
e16a8c9b | 1183 | if (vp->v_type == VCHR || vp->v_type == VBLK) { |
9342689a | 1184 | vp->v_op = spec_nfsv2nodeop_p; |
4acac3d6 KM |
1185 | nvp = checkalias(vp, (dev_t)rdev, vp->v_mount); |
1186 | if (nvp) { | |
36ce47e7 KM |
1187 | /* |
1188 | * Discard unneeded vnode, but save its nfsnode. | |
1189 | */ | |
0bb2c2fc | 1190 | LIST_REMOVE(np, n_hash); |
36ce47e7 KM |
1191 | nvp->v_data = vp->v_data; |
1192 | vp->v_data = NULL; | |
9342689a | 1193 | vp->v_op = spec_vnodeop_p; |
36ce47e7 KM |
1194 | vrele(vp); |
1195 | vgone(vp); | |
e16a8c9b KM |
1196 | /* |
1197 | * Reinitialize aliased node. | |
1198 | */ | |
e16a8c9b | 1199 | np->n_vnode = nvp; |
4acac3d6 | 1200 | nhpp = NFSNOHASH(nfs_hash(np->n_fhp, np->n_fhsize)); |
0bb2c2fc | 1201 | LIST_INSERT_HEAD(nhpp, np, n_hash); |
36ce47e7 | 1202 | *vpp = vp = nvp; |
e16a8c9b KM |
1203 | } |
1204 | } | |
41f343df | 1205 | np->n_mtime = mtime.ts_sec; |
e16a8c9b | 1206 | } |
180c0ba3 | 1207 | vap = &np->n_vattr; |
2c5b44a2 KM |
1208 | vap->va_type = vtyp; |
1209 | vap->va_mode = (vmode & 07777); | |
41f343df KM |
1210 | vap->va_rdev = (dev_t)rdev; |
1211 | vap->va_mtime = mtime; | |
1212 | vap->va_fsid = vp->v_mount->mnt_stat.f_fsid.val[0]; | |
4acac3d6 KM |
1213 | if (v3) { |
1214 | vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); | |
1215 | vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); | |
1216 | vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); | |
1217 | fxdr_hyper(&fp->fa3_size, &vap->va_size); | |
1218 | vap->va_blocksize = NFS_FABLKSIZE; | |
1219 | fxdr_hyper(&fp->fa3_used, &vap->va_bytes); | |
1220 | vap->va_fileid = fxdr_unsigned(int, fp->fa3_fileid.nfsuquad[1]); | |
1221 | fxdr_nfsv3time(&fp->fa3_atime, &vap->va_atime); | |
1222 | fxdr_nfsv3time(&fp->fa3_ctime, &vap->va_ctime); | |
1223 | vap->va_flags = 0; | |
1224 | vap->va_filerev = 0; | |
41f343df | 1225 | } else { |
4acac3d6 KM |
1226 | vap->va_nlink = fxdr_unsigned(u_short, fp->fa_nlink); |
1227 | vap->va_uid = fxdr_unsigned(uid_t, fp->fa_uid); | |
1228 | vap->va_gid = fxdr_unsigned(gid_t, fp->fa_gid); | |
1229 | vap->va_size = fxdr_unsigned(u_long, fp->fa2_size); | |
1230 | vap->va_blocksize = fxdr_unsigned(long, fp->fa2_blocksize); | |
1231 | vap->va_bytes = fxdr_unsigned(long, fp->fa2_blocks) * NFS_FABLKSIZE; | |
1232 | vap->va_fileid = fxdr_unsigned(long, fp->fa2_fileid); | |
1233 | fxdr_nfsv2time(&fp->fa2_atime, &vap->va_atime); | |
6761bd7b | 1234 | vap->va_flags = 0; |
4acac3d6 | 1235 | vap->va_ctime.ts_sec = fxdr_unsigned(long, fp->fa2_ctime.nfsv2_sec); |
41f343df | 1236 | vap->va_ctime.ts_nsec = 0; |
4acac3d6 | 1237 | vap->va_gen = fxdr_unsigned(u_long, fp->fa2_ctime.nfsv2_usec); |
41f343df KM |
1238 | vap->va_filerev = 0; |
1239 | } | |
6d73426c KM |
1240 | if (vap->va_size != np->n_size) { |
1241 | if (vap->va_type == VREG) { | |
1242 | if (np->n_flag & NMODIFIED) { | |
1243 | if (vap->va_size < np->n_size) | |
1244 | vap->va_size = np->n_size; | |
1245 | else | |
1246 | np->n_size = vap->va_size; | |
1247 | } else | |
1248 | np->n_size = vap->va_size; | |
1249 | vnode_pager_setsize(vp, (u_long)np->n_size); | |
1250 | } else | |
1251 | np->n_size = vap->va_size; | |
8986c97c | 1252 | } |
180c0ba3 | 1253 | np->n_attrstamp = time.tv_sec; |
9238aa59 | 1254 | if (vaper != NULL) { |
180c0ba3 | 1255 | bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(*vap)); |
9b61ab4a | 1256 | if (np->n_flag & NCHG) { |
4acac3d6 KM |
1257 | if (np->n_flag & NACC) |
1258 | vaper->va_atime = np->n_atim; | |
1259 | if (np->n_flag & NUPD) | |
1260 | vaper->va_mtime = np->n_mtim; | |
9b61ab4a | 1261 | } |
9238aa59 | 1262 | } |
180c0ba3 KM |
1263 | return (0); |
1264 | } | |
1265 | ||
1266 | /* | |
1267 | * Check the time stamp | |
1268 | * If the cache is valid, copy contents to *vap and return 0 | |
1269 | * otherwise return an error | |
1270 | */ | |
4acac3d6 | 1271 | int |
6d73426c | 1272 | nfs_getattrcache(vp, vaper) |
180c0ba3 | 1273 | register struct vnode *vp; |
6d73426c | 1274 | struct vattr *vaper; |
180c0ba3 | 1275 | { |
6d73426c KM |
1276 | register struct nfsnode *np = VTONFS(vp); |
1277 | register struct vattr *vap; | |
180c0ba3 | 1278 | |
4acac3d6 | 1279 | if ((time.tv_sec - np->n_attrstamp) >= NFS_ATTRTIMEO(np)) { |
180c0ba3 KM |
1280 | nfsstats.attrcache_misses++; |
1281 | return (ENOENT); | |
1282 | } | |
2c5b44a2 | 1283 | nfsstats.attrcache_hits++; |
6d73426c KM |
1284 | vap = &np->n_vattr; |
1285 | if (vap->va_size != np->n_size) { | |
1286 | if (vap->va_type == VREG) { | |
1287 | if (np->n_flag & NMODIFIED) { | |
1288 | if (vap->va_size < np->n_size) | |
1289 | vap->va_size = np->n_size; | |
1290 | else | |
1291 | np->n_size = vap->va_size; | |
1292 | } else | |
1293 | np->n_size = vap->va_size; | |
1294 | vnode_pager_setsize(vp, (u_long)np->n_size); | |
1295 | } else | |
1296 | np->n_size = vap->va_size; | |
1297 | } | |
1298 | bcopy((caddr_t)vap, (caddr_t)vaper, sizeof(struct vattr)); | |
9b61ab4a | 1299 | if (np->n_flag & NCHG) { |
4acac3d6 KM |
1300 | if (np->n_flag & NACC) |
1301 | vaper->va_atime = np->n_atim; | |
1302 | if (np->n_flag & NUPD) | |
1303 | vaper->va_mtime = np->n_mtim; | |
9b61ab4a | 1304 | } |
2c5b44a2 | 1305 | return (0); |
180c0ba3 KM |
1306 | } |
1307 | ||
180c0ba3 | 1308 | /* |
2c5b44a2 | 1309 | * Set up nameidata for a lookup() call and do it |
180c0ba3 | 1310 | */ |
4acac3d6 KM |
1311 | int |
1312 | nfs_namei(ndp, fhp, len, slp, nam, mdp, dposp, retdirp, p, kerbflag) | |
180c0ba3 KM |
1313 | register struct nameidata *ndp; |
1314 | fhandle_t *fhp; | |
1315 | int len; | |
2c5b44a2 KM |
1316 | struct nfssvc_sock *slp; |
1317 | struct mbuf *nam; | |
180c0ba3 KM |
1318 | struct mbuf **mdp; |
1319 | caddr_t *dposp; | |
4acac3d6 | 1320 | struct vnode **retdirp; |
bd0f8fef | 1321 | struct proc *p; |
4acac3d6 | 1322 | int kerbflag; |
180c0ba3 KM |
1323 | { |
1324 | register int i, rem; | |
1325 | register struct mbuf *md; | |
bd0f8fef | 1326 | register char *fromcp, *tocp; |
10bae9ee | 1327 | struct vnode *dp; |
7bd310ea JH |
1328 | int error, rdonly; |
1329 | struct componentname *cnp = &ndp->ni_cnd; | |
180c0ba3 | 1330 | |
4acac3d6 | 1331 | *retdirp = (struct vnode *)0; |
7bd310ea | 1332 | MALLOC(cnp->cn_pnbuf, char *, len + 1, M_NAMEI, M_WAITOK); |
bd0f8fef KM |
1333 | /* |
1334 | * Copy the name from the mbuf list to ndp->ni_pnbuf | |
1335 | * and set the various ndp fields appropriately. | |
1336 | */ | |
1337 | fromcp = *dposp; | |
7bd310ea | 1338 | tocp = cnp->cn_pnbuf; |
bd0f8fef KM |
1339 | md = *mdp; |
1340 | rem = mtod(md, caddr_t) + md->m_len - fromcp; | |
7bd310ea | 1341 | cnp->cn_hash = 0; |
bd0f8fef KM |
1342 | for (i = 0; i < len; i++) { |
1343 | while (rem == 0) { | |
1344 | md = md->m_next; | |
1345 | if (md == NULL) { | |
1346 | error = EBADRPC; | |
1347 | goto out; | |
d4e5799e | 1348 | } |
bd0f8fef KM |
1349 | fromcp = mtod(md, caddr_t); |
1350 | rem = md->m_len; | |
d4e5799e | 1351 | } |
bd0f8fef | 1352 | if (*fromcp == '\0' || *fromcp == '/') { |
4acac3d6 | 1353 | error = EACCES; |
bd0f8fef | 1354 | goto out; |
d4e5799e | 1355 | } |
7bd310ea | 1356 | cnp->cn_hash += (unsigned char)*fromcp; |
bd0f8fef KM |
1357 | *tocp++ = *fromcp++; |
1358 | rem--; | |
1359 | } | |
1360 | *tocp = '\0'; | |
1361 | *mdp = md; | |
1362 | *dposp = fromcp; | |
1363 | len = nfsm_rndup(len)-len; | |
1364 | if (len > 0) { | |
1365 | if (rem >= len) | |
1366 | *dposp += len; | |
1367 | else if (error = nfs_adv(mdp, dposp, len, rem)) | |
1368 | goto out; | |
1369 | } | |
7bd310ea JH |
1370 | ndp->ni_pathlen = tocp - cnp->cn_pnbuf; |
1371 | cnp->cn_nameptr = cnp->cn_pnbuf; | |
10bae9ee KM |
1372 | /* |
1373 | * Extract and set starting directory. | |
1374 | */ | |
7bd310ea | 1375 | if (error = nfsrv_fhtovp(fhp, FALSE, &dp, ndp->ni_cnd.cn_cred, slp, |
4acac3d6 | 1376 | nam, &rdonly, kerbflag)) |
bd0f8fef | 1377 | goto out; |
36c3043b | 1378 | if (dp->v_type != VDIR) { |
f0f1cbaa | 1379 | vrele(dp); |
bd0f8fef KM |
1380 | error = ENOTDIR; |
1381 | goto out; | |
36c3043b | 1382 | } |
4acac3d6 KM |
1383 | VREF(dp); |
1384 | *retdirp = dp; | |
10bae9ee | 1385 | ndp->ni_startdir = dp; |
2c5b44a2 | 1386 | if (rdonly) |
7bd310ea | 1387 | cnp->cn_flags |= (NOCROSSMOUNT | RDONLY); |
2c5b44a2 | 1388 | else |
7bd310ea | 1389 | cnp->cn_flags |= NOCROSSMOUNT; |
180c0ba3 | 1390 | /* |
bd0f8fef | 1391 | * And call lookup() to do the real work |
180c0ba3 | 1392 | */ |
7bd310ea JH |
1393 | cnp->cn_proc = p; |
1394 | if (error = lookup(ndp)) | |
bd0f8fef KM |
1395 | goto out; |
1396 | /* | |
1397 | * Check for encountering a symbolic link | |
1398 | */ | |
7bd310ea JH |
1399 | if (cnp->cn_flags & ISSYMLINK) { |
1400 | if ((cnp->cn_flags & LOCKPARENT) && ndp->ni_pathlen == 1) | |
bd0f8fef KM |
1401 | vput(ndp->ni_dvp); |
1402 | else | |
1403 | vrele(ndp->ni_dvp); | |
1404 | vput(ndp->ni_vp); | |
1405 | ndp->ni_vp = NULL; | |
1406 | error = EINVAL; | |
1407 | goto out; | |
1408 | } | |
1409 | /* | |
1410 | * Check for saved name request | |
1411 | */ | |
7bd310ea JH |
1412 | if (cnp->cn_flags & (SAVENAME | SAVESTART)) { |
1413 | cnp->cn_flags |= HASBUF; | |
bd0f8fef KM |
1414 | return (0); |
1415 | } | |
1416 | out: | |
7bd310ea | 1417 | FREE(cnp->cn_pnbuf, M_NAMEI); |
180c0ba3 KM |
1418 | return (error); |
1419 | } | |
1420 | ||
1421 | /* | |
1422 | * A fiddled version of m_adj() that ensures null fill to a long | |
1423 | * boundary and only trims off the back end | |
1424 | */ | |
2c5b44a2 | 1425 | void |
180c0ba3 KM |
1426 | nfsm_adj(mp, len, nul) |
1427 | struct mbuf *mp; | |
1428 | register int len; | |
1429 | int nul; | |
1430 | { | |
1431 | register struct mbuf *m; | |
1432 | register int count, i; | |
1433 | register char *cp; | |
1434 | ||
1435 | /* | |
1436 | * Trim from tail. Scan the mbuf chain, | |
1437 | * calculating its length and finding the last mbuf. | |
1438 | * If the adjustment only affects this mbuf, then just | |
1439 | * adjust and return. Otherwise, rescan and truncate | |
1440 | * after the remaining size. | |
1441 | */ | |
1442 | count = 0; | |
1443 | m = mp; | |
1444 | for (;;) { | |
1445 | count += m->m_len; | |
1446 | if (m->m_next == (struct mbuf *)0) | |
1447 | break; | |
1448 | m = m->m_next; | |
1449 | } | |
1f9b0aa5 | 1450 | if (m->m_len > len) { |
180c0ba3 KM |
1451 | m->m_len -= len; |
1452 | if (nul > 0) { | |
1453 | cp = mtod(m, caddr_t)+m->m_len-nul; | |
1454 | for (i = 0; i < nul; i++) | |
1455 | *cp++ = '\0'; | |
1456 | } | |
1457 | return; | |
1458 | } | |
1459 | count -= len; | |
1460 | if (count < 0) | |
1461 | count = 0; | |
1462 | /* | |
1463 | * Correct length for chain is "count". | |
1464 | * Find the mbuf with last data, adjust its length, | |
1465 | * and toss data from remaining mbufs on chain. | |
1466 | */ | |
1467 | for (m = mp; m; m = m->m_next) { | |
1468 | if (m->m_len >= count) { | |
1469 | m->m_len = count; | |
1470 | if (nul > 0) { | |
1471 | cp = mtod(m, caddr_t)+m->m_len-nul; | |
1472 | for (i = 0; i < nul; i++) | |
1473 | *cp++ = '\0'; | |
1474 | } | |
1475 | break; | |
1476 | } | |
1477 | count -= m->m_len; | |
1478 | } | |
4acac3d6 | 1479 | for (m = m->m_next;m;m = m->m_next) |
180c0ba3 KM |
1480 | m->m_len = 0; |
1481 | } | |
1482 | ||
4acac3d6 KM |
1483 | /* |
1484 | * Make these functions instead of macros, so that the kernel text size | |
1485 | * doesn't get too big... | |
1486 | */ | |
1487 | void | |
1488 | nfsm_srvwcc(nfsd, before_ret, before_vap, after_ret, after_vap, mbp, bposp) | |
1489 | struct nfsrv_descript *nfsd; | |
1490 | int before_ret; | |
1491 | register struct vattr *before_vap; | |
1492 | int after_ret; | |
1493 | struct vattr *after_vap; | |
1494 | struct mbuf **mbp; | |
1495 | char **bposp; | |
1496 | { | |
1497 | register struct mbuf *mb = *mbp, *mb2; | |
1498 | register char *bpos = *bposp; | |
1499 | register u_long *tl; | |
1500 | ||
1501 | if (before_ret) { | |
1502 | nfsm_build(tl, u_long *, NFSX_UNSIGNED); | |
1503 | *tl = nfs_false; | |
1504 | } else { | |
1505 | nfsm_build(tl, u_long *, 7 * NFSX_UNSIGNED); | |
1506 | *tl++ = nfs_true; | |
1507 | txdr_hyper(&(before_vap->va_size), tl); | |
1508 | tl += 2; | |
1509 | txdr_nfsv3time(&(before_vap->va_mtime), tl); | |
1510 | tl += 2; | |
1511 | txdr_nfsv3time(&(before_vap->va_ctime), tl); | |
1512 | } | |
1513 | *bposp = bpos; | |
1514 | *mbp = mb; | |
1515 | nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp); | |
1516 | } | |
1517 | ||
1518 | void | |
1519 | nfsm_srvpostopattr(nfsd, after_ret, after_vap, mbp, bposp) | |
1520 | struct nfsrv_descript *nfsd; | |
1521 | int after_ret; | |
1522 | struct vattr *after_vap; | |
1523 | struct mbuf **mbp; | |
1524 | char **bposp; | |
1525 | { | |
1526 | register struct mbuf *mb = *mbp, *mb2; | |
1527 | register char *bpos = *bposp; | |
1528 | register u_long *tl; | |
1529 | register struct nfs_fattr *fp; | |
1530 | ||
1531 | if (after_ret) { | |
1532 | nfsm_build(tl, u_long *, NFSX_UNSIGNED); | |
1533 | *tl = nfs_false; | |
1534 | } else { | |
1535 | nfsm_build(tl, u_long *, NFSX_UNSIGNED + NFSX_V3FATTR); | |
1536 | *tl++ = nfs_true; | |
1537 | fp = (struct nfs_fattr *)tl; | |
1538 | nfsm_srvfattr(nfsd, after_vap, fp); | |
1539 | } | |
1540 | *mbp = mb; | |
1541 | *bposp = bpos; | |
1542 | } | |
1543 | ||
1544 | void | |
1545 | nfsm_srvfattr(nfsd, vap, fp) | |
1546 | register struct nfsrv_descript *nfsd; | |
1547 | register struct vattr *vap; | |
1548 | register struct nfs_fattr *fp; | |
1549 | { | |
1550 | ||
1551 | fp->fa_nlink = txdr_unsigned(vap->va_nlink); | |
1552 | fp->fa_uid = txdr_unsigned(vap->va_uid); | |
1553 | fp->fa_gid = txdr_unsigned(vap->va_gid); | |
1554 | if (nfsd->nd_flag & ND_NFSV3) { | |
1555 | fp->fa_type = vtonfsv3_type(vap->va_type); | |
1556 | fp->fa_mode = vtonfsv3_mode(vap->va_mode); | |
1557 | txdr_hyper(&vap->va_size, &fp->fa3_size); | |
1558 | txdr_hyper(&vap->va_bytes, &fp->fa3_used); | |
1559 | fp->fa3_rdev.specdata1 = txdr_unsigned(major(vap->va_rdev)); | |
1560 | fp->fa3_rdev.specdata2 = txdr_unsigned(minor(vap->va_rdev)); | |
1561 | fp->fa3_fsid.nfsuquad[0] = 0; | |
1562 | fp->fa3_fsid.nfsuquad[1] = txdr_unsigned(vap->va_fsid); | |
1563 | fp->fa3_fileid.nfsuquad[0] = 0; | |
1564 | fp->fa3_fileid.nfsuquad[1] = txdr_unsigned(vap->va_fileid); | |
1565 | txdr_nfsv3time(&vap->va_atime, &fp->fa3_atime); | |
1566 | txdr_nfsv3time(&vap->va_mtime, &fp->fa3_mtime); | |
1567 | txdr_nfsv3time(&vap->va_ctime, &fp->fa3_ctime); | |
1568 | } else { | |
1569 | fp->fa_type = vtonfsv2_type(vap->va_type); | |
1570 | fp->fa_mode = vtonfsv2_mode(vap->va_type, vap->va_mode); | |
1571 | fp->fa2_size = txdr_unsigned(vap->va_size); | |
1572 | fp->fa2_blocksize = txdr_unsigned(vap->va_blocksize); | |
1573 | if (vap->va_type == VFIFO) | |
1574 | fp->fa2_rdev = 0xffffffff; | |
1575 | else | |
1576 | fp->fa2_rdev = txdr_unsigned(vap->va_rdev); | |
1577 | fp->fa2_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); | |
1578 | fp->fa2_fsid = txdr_unsigned(vap->va_fsid); | |
1579 | fp->fa2_fileid = txdr_unsigned(vap->va_fileid); | |
1580 | txdr_nfsv2time(&vap->va_atime, &fp->fa2_atime); | |
1581 | txdr_nfsv2time(&vap->va_mtime, &fp->fa2_mtime); | |
1582 | txdr_nfsv2time(&vap->va_ctime, &fp->fa2_ctime); | |
1583 | } | |
1584 | } | |
1585 | ||
180c0ba3 KM |
1586 | /* |
1587 | * nfsrv_fhtovp() - convert a fh to a vnode ptr (optionally locked) | |
1588 | * - look up fsid in mount list (if not found ret error) | |
701e260a KM |
1589 | * - get vp and export rights by calling VFS_FHTOVP() |
1590 | * - if cred->cr_uid == 0 or MNT_EXPORTANON set it to credanon | |
180c0ba3 | 1591 | * - if not lockflag unlock it with VOP_UNLOCK() |
180c0ba3 | 1592 | */ |
4acac3d6 KM |
1593 | int |
1594 | nfsrv_fhtovp(fhp, lockflag, vpp, cred, slp, nam, rdonlyp, kerbflag) | |
180c0ba3 KM |
1595 | fhandle_t *fhp; |
1596 | int lockflag; | |
1597 | struct vnode **vpp; | |
1598 | struct ucred *cred; | |
2c5b44a2 KM |
1599 | struct nfssvc_sock *slp; |
1600 | struct mbuf *nam; | |
1601 | int *rdonlyp; | |
4acac3d6 | 1602 | int kerbflag; |
180c0ba3 KM |
1603 | { |
1604 | register struct mount *mp; | |
2c5b44a2 | 1605 | register struct nfsuid *uidp; |
6d73426c | 1606 | register int i; |
701e260a KM |
1607 | struct ucred *credanon; |
1608 | int error, exflags; | |
180c0ba3 | 1609 | |
2c5b44a2 | 1610 | *vpp = (struct vnode *)0; |
4acac3d6 KM |
1611 | mp = vfs_getvfs(&fhp->fh_fsid); |
1612 | if (!mp) | |
180c0ba3 | 1613 | return (ESTALE); |
4acac3d6 KM |
1614 | error = VFS_FHTOVP(mp, &fhp->fh_fid, nam, vpp, &exflags, &credanon); |
1615 | if (error) | |
701e260a | 1616 | return (error); |
2c5b44a2 KM |
1617 | /* |
1618 | * Check/setup credentials. | |
1619 | */ | |
701e260a | 1620 | if (exflags & MNT_EXKERB) { |
4acac3d6 | 1621 | if (!kerbflag) { |
6d73426c | 1622 | vput(*vpp); |
4acac3d6 | 1623 | return (NFSERR_AUTHERR | AUTH_TOOWEAK); |
6d73426c | 1624 | } |
4acac3d6 KM |
1625 | } else if (kerbflag) { |
1626 | vput(*vpp); | |
1627 | return (NFSERR_AUTHERR | AUTH_TOOWEAK); | |
6d73426c KM |
1628 | } else if (cred->cr_uid == 0 || (exflags & MNT_EXPORTANON)) { |
1629 | cred->cr_uid = credanon->cr_uid; | |
1630 | for (i = 0; i < credanon->cr_ngroups && i < NGROUPS; i++) | |
1631 | cred->cr_groups[i] = credanon->cr_groups[i]; | |
bb57c9b3 | 1632 | cred->cr_ngroups = i; |
6d73426c | 1633 | } |
701e260a | 1634 | if (exflags & MNT_EXRDONLY) |
2c5b44a2 KM |
1635 | *rdonlyp = 1; |
1636 | else | |
1637 | *rdonlyp = 0; | |
1638 | if (!lockflag) | |
1639 | VOP_UNLOCK(*vpp); | |
1640 | return (0); | |
958df9fb | 1641 | } |
8471f303 KM |
1642 | |
1643 | /* | |
1644 | * This function compares two net addresses by family and returns TRUE | |
1645 | * if they are the same host. | |
1646 | * If there is any doubt, return FALSE. | |
1647 | * The AF_INET family is handled as a special case so that address mbufs | |
1648 | * don't need to be saved to store "struct in_addr", which is only 4 bytes. | |
1649 | */ | |
4acac3d6 | 1650 | int |
b330a7ec | 1651 | netaddr_match(family, haddr, nam) |
8471f303 KM |
1652 | int family; |
1653 | union nethostaddr *haddr; | |
8471f303 KM |
1654 | struct mbuf *nam; |
1655 | { | |
1656 | register struct sockaddr_in *inetaddr; | |
8471f303 KM |
1657 | |
1658 | switch (family) { | |
1659 | case AF_INET: | |
1660 | inetaddr = mtod(nam, struct sockaddr_in *); | |
b330a7ec KM |
1661 | if (inetaddr->sin_family == AF_INET && |
1662 | inetaddr->sin_addr.s_addr == haddr->had_inetaddr) | |
8471f303 KM |
1663 | return (1); |
1664 | break; | |
1665 | #ifdef ISO | |
1666 | case AF_ISO: | |
b330a7ec KM |
1667 | { |
1668 | register struct sockaddr_iso *isoaddr1, *isoaddr2; | |
1669 | ||
8471f303 | 1670 | isoaddr1 = mtod(nam, struct sockaddr_iso *); |
8471f303 | 1671 | isoaddr2 = mtod(haddr->had_nam, struct sockaddr_iso *); |
b330a7ec KM |
1672 | if (isoaddr1->siso_family == AF_ISO && |
1673 | isoaddr1->siso_nlen > 0 && | |
8471f303 KM |
1674 | isoaddr1->siso_nlen == isoaddr2->siso_nlen && |
1675 | SAME_ISOADDR(isoaddr1, isoaddr2)) | |
1676 | return (1); | |
1677 | break; | |
b330a7ec | 1678 | } |
8471f303 KM |
1679 | #endif /* ISO */ |
1680 | default: | |
1681 | break; | |
1682 | }; | |
1683 | return (0); | |
1684 | } | |
4acac3d6 KM |
1685 | |
1686 | static nfsuint64 nfs_nullcookie = { 0, 0 }; | |
1687 | /* | |
1688 | * This function finds the directory cookie that corresponds to the | |
1689 | * logical byte offset given. | |
1690 | */ | |
1691 | nfsuint64 * | |
1692 | nfs_getcookie(np, off, add) | |
1693 | register struct nfsnode *np; | |
1694 | off_t off; | |
1695 | int add; | |
1696 | { | |
1697 | register struct nfsdmap *dp, *dp2; | |
1698 | register int pos; | |
1699 | ||
1700 | pos = off / NFS_DIRBLKSIZ; | |
1701 | if (pos == 0) { | |
1702 | #ifdef DIAGNOSTIC | |
1703 | if (add) | |
1704 | panic("nfs getcookie add at 0"); | |
1705 | #endif | |
1706 | return (&nfs_nullcookie); | |
1707 | } | |
1708 | pos--; | |
1709 | dp = np->n_cookies.lh_first; | |
1710 | if (!dp) { | |
1711 | if (add) { | |
1712 | MALLOC(dp, struct nfsdmap *, sizeof (struct nfsdmap), | |
1713 | M_NFSDIROFF, M_WAITOK); | |
1714 | dp->ndm_eocookie = 0; | |
1715 | LIST_INSERT_HEAD(&np->n_cookies, dp, ndm_list); | |
1716 | } else | |
1717 | return ((nfsuint64 *)0); | |
1718 | } | |
1719 | while (pos >= NFSNUMCOOKIES) { | |
1720 | pos -= NFSNUMCOOKIES; | |
1721 | if (dp->ndm_list.le_next) { | |
1722 | if (!add && dp->ndm_eocookie < NFSNUMCOOKIES && | |
1723 | pos >= dp->ndm_eocookie) | |
1724 | return ((nfsuint64 *)0); | |
1725 | dp = dp->ndm_list.le_next; | |
1726 | } else if (add) { | |
1727 | MALLOC(dp2, struct nfsdmap *, sizeof (struct nfsdmap), | |
1728 | M_NFSDIROFF, M_WAITOK); | |
1729 | dp2->ndm_eocookie = 0; | |
1730 | LIST_INSERT_AFTER(dp, dp2, ndm_list); | |
1731 | dp = dp2; | |
1732 | } else | |
1733 | return ((nfsuint64 *)0); | |
1734 | } | |
1735 | if (pos >= dp->ndm_eocookie) { | |
1736 | if (add) | |
1737 | dp->ndm_eocookie = pos + 1; | |
1738 | else | |
1739 | return ((nfsuint64 *)0); | |
1740 | } | |
1741 | return (&dp->ndm_cookies[pos]); | |
1742 | } | |
1743 | ||
1744 | /* | |
1745 | * Invalidate cached directory information, except for the actual directory | |
1746 | * blocks (which are invalidated separately). | |
1747 | * Done mainly to avoid the use of stale offset cookies. | |
1748 | */ | |
1749 | void | |
1750 | nfs_invaldir(vp) | |
1751 | register struct vnode *vp; | |
1752 | { | |
1753 | register struct nfsnode *np = VTONFS(vp); | |
1754 | ||
1755 | #ifdef DIAGNOSTIC | |
1756 | if (vp->v_type != VDIR) | |
1757 | panic("nfs: invaldir not dir"); | |
1758 | #endif | |
1759 | np->n_direofoffset = 0; | |
1760 | np->n_cookieverf.nfsuquad[0] = 0; | |
1761 | np->n_cookieverf.nfsuquad[1] = 0; | |
1762 | if (np->n_cookies.lh_first) | |
1763 | np->n_cookies.lh_first->ndm_eocookie = 0; | |
1764 | } | |
1765 | ||
1766 | /* | |
1767 | * The write verifier has changed (probably due to a server reboot), so all | |
1768 | * B_NEEDCOMMIT blocks will have to be written again. Since they are on the | |
1769 | * dirty block list as B_DELWRI, all this takes is clearing the B_NEEDCOMMIT | |
1770 | * flag. Once done the new write verifier can be set for the mount point. | |
1771 | */ | |
1772 | void | |
1773 | nfs_clearcommit(mp) | |
1774 | struct mount *mp; | |
1775 | { | |
1776 | register struct vnode *vp, *nvp; | |
1777 | register struct buf *bp, *nbp; | |
1778 | int s; | |
1779 | ||
1780 | s = splbio(); | |
1781 | loop: | |
1782 | for (vp = mp->mnt_vnodelist.lh_first; vp; vp = nvp) { | |
1783 | if (vp->v_mount != mp) /* Paranoia */ | |
1784 | goto loop; | |
1785 | nvp = vp->v_mntvnodes.le_next; | |
1786 | for (bp = vp->v_dirtyblkhd.lh_first; bp; bp = nbp) { | |
1787 | nbp = bp->b_vnbufs.le_next; | |
1788 | if ((bp->b_flags & (B_BUSY | B_DELWRI | B_NEEDCOMMIT)) | |
1789 | == (B_DELWRI | B_NEEDCOMMIT)) | |
1790 | bp->b_flags &= ~B_NEEDCOMMIT; | |
1791 | } | |
1792 | } | |
1793 | splx(s); | |
1794 | } | |
1795 | ||
1796 | /* | |
1797 | * Map errnos to NFS error numbers. For Version 3 also filter out error | |
1798 | * numbers not specified for the associated procedure. | |
1799 | */ | |
1800 | int | |
1801 | nfsrv_errmap(nd, err) | |
1802 | struct nfsrv_descript *nd; | |
1803 | register int err; | |
1804 | { | |
1805 | register short *defaulterrp, *errp; | |
1806 | ||
1807 | if (nd->nd_flag & ND_NFSV3) { | |
1808 | if (nd->nd_procnum <= NFSPROC_COMMIT) { | |
1809 | errp = defaulterrp = nfsrv_v3errmap[nd->nd_procnum]; | |
1810 | while (*++errp) { | |
1811 | if (*errp == err) | |
1812 | return (err); | |
1813 | else if (*errp > err) | |
1814 | break; | |
1815 | } | |
1816 | return ((int)*defaulterrp); | |
1817 | } else | |
1818 | return (err & 0xffff); | |
1819 | } | |
1820 | if (err <= ELAST) | |
1821 | return ((int)nfsrv_v2errmap[err - 1]); | |
1822 | return (NFSERR_IO); | |
1823 | } |