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805e021f CE |
1 | /* |
2 | * Copyright 2000, International Business Machines Corporation and others. | |
3 | * All Rights Reserved. | |
4 | * | |
5 | * This software has been released under the terms of the IBM Public | |
6 | * License. For details, see the LICENSE file in the top-level source | |
7 | * directory or online at http://www.openafs.org/dl/license10.html | |
8 | */ | |
9 | ||
10 | /* | |
11 | * IRIX inode operations | |
12 | * | |
13 | * Implements: | |
14 | * afsidestroy | |
15 | * getinode | |
16 | * igetinode | |
17 | * xfs_getinode | |
18 | * xfs_igetinode | |
19 | * icreate | |
20 | * afs_syscall_icreate | |
21 | * xfs_icreatename64 | |
22 | * afs_syscall_icreatename64 | |
23 | * iopenargs64 | |
24 | * afs_syscall_iopen | |
25 | * iopen | |
26 | * iopen64 | |
27 | * xfs_iincdec64 | |
28 | * iincdec64 | |
29 | * afs_syscall_idec64 | |
30 | * afs_syscall_iinc64 | |
31 | * iincdec | |
32 | * iinc | |
33 | * idec | |
34 | * afs_syscall_iincdec | |
35 | * afs_syscall_ilistinode64 | |
36 | * | |
37 | */ | |
38 | ||
39 | #include <afsconfig.h> | |
40 | #include "afs/param.h" | |
41 | ||
42 | ||
43 | #include "afs/sysincludes.h" /* Standard vendor system headers */ | |
44 | #include "afsincludes.h" /* Afs-based standard headers */ | |
45 | #include "afs/osi_inode.h" | |
46 | #include "afs/afs_stats.h" /* statistics stuff */ | |
47 | ||
48 | #define BAD_IGET -1000 | |
49 | ||
50 | /* | |
51 | * SGI dependent system calls | |
52 | */ | |
53 | #ifndef INODESPECIAL | |
54 | /* | |
55 | * `INODESPECIAL' type inodes are ones that describe volumes. | |
56 | */ | |
57 | #define INODESPECIAL 0xffffffff /* ... from ../vol/viceinode.h */ | |
58 | #endif | |
59 | ||
60 | void | |
61 | afsidestroy(struct inode *ip) | |
62 | { | |
63 | if (ip->i_afs) { | |
64 | kmem_free(ip->i_afs, sizeof(struct afsparms)); | |
65 | ip->i_afs = NULL; | |
66 | } | |
67 | } | |
68 | ||
69 | extern int xfs_fstype; | |
70 | ||
71 | int | |
72 | getinode(struct vfs *vfsp, dev_t dev, ino_t inode, struct inode **ipp) | |
73 | { | |
74 | return ENOSYS; | |
75 | } | |
76 | ||
77 | int | |
78 | igetinode(struct vfs *vfsp, dev_t dev, ino_t inode, struct inode **ipp) | |
79 | { | |
80 | return ENOSYS; | |
81 | } | |
82 | ||
83 | int XFS_IGET_EPOS; | |
84 | ino_t XFS_IGET_INO; | |
85 | dev_t XFS_IGET_DEV; | |
86 | #define SET_XFS_ERROR(POS, DEV, INO) \ | |
87 | XFS_IGET_EPOS = (POS), XFS_IGET_DEV = (DEV), XFS_IGET_INO = (INO) | |
88 | ||
89 | int | |
90 | xfs_getinode(struct vfs *vfsp, dev_t dev, ino_t inode, struct xfs_inode **ipp) | |
91 | { | |
92 | struct xfs_inode *ip; | |
93 | int error; | |
94 | ||
95 | if (!vfsp) { | |
96 | vfsp = vfs_devsearch(dev, xfs_fstype); | |
97 | if (!vfsp) { | |
98 | SET_XFS_ERROR(1, dev, inode); | |
99 | return ENXIO; | |
100 | } | |
101 | } | |
102 | ||
103 | if (error = xfs_iget((((struct mount *) | |
104 | ((vfsp)->vfs_bh.bh_first)->bd_pdata)), (void *)0, | |
105 | (xfs_ino_t) inode, XFS_ILOCK_SHARED, &ip, | |
106 | (daddr_t) 0)) { | |
107 | SET_XFS_ERROR(3, vfsp->vfs_dev, inode); | |
108 | return error; | |
109 | } | |
110 | ||
111 | *ipp = ip; | |
112 | return 0; | |
113 | } | |
114 | ||
115 | /* xfs_igetinode now returns an unlocked inode. This is fine, since we | |
116 | * have a refcount on the holding vnode. | |
117 | */ | |
118 | int | |
119 | xfs_igetinode(struct vfs *vfsp, dev_t dev, ino_t inode, | |
120 | struct xfs_inode **ipp) | |
121 | { | |
122 | struct xfs_inode *ip; | |
123 | vnode_t *vp; | |
124 | vattr_t vattr; | |
125 | int error; | |
126 | ||
127 | AFS_STATCNT(igetinode); | |
128 | ||
129 | *ipp = NULL; | |
130 | if (error = xfs_getinode(vfsp, dev, inode, &ip)) { | |
131 | return error; | |
132 | } | |
133 | ||
134 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
135 | vp = XFS_ITOV(ip); | |
136 | vattr.va_mask = AT_STAT; | |
137 | AFS_VOP_GETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), error); | |
138 | if (error) { | |
139 | SET_XFS_ERROR(4, vp->v_vfsp->vfs_dev, inode); | |
140 | VN_RELE(vp); | |
141 | return error; | |
142 | } | |
143 | if (vattr.va_nlink == 0 || vattr.va_type != VREG) { | |
144 | SET_XFS_ERROR(5, vp->v_vfsp->vfs_dev, inode); | |
145 | VN_RELE(vp); | |
146 | return ENOENT; | |
147 | } | |
148 | ||
149 | *ipp = ip; | |
150 | return 0; | |
151 | } | |
152 | ||
153 | /************************************************************************** | |
154 | * inode creation routines. | |
155 | * | |
156 | ***************************************************************************/ | |
157 | struct icreateargs { | |
158 | sysarg_t dev; | |
159 | sysarg_t near_inode; | |
160 | sysarg_t param1; | |
161 | sysarg_t param2; | |
162 | sysarg_t param3; | |
163 | sysarg_t param4; | |
164 | }; | |
165 | ||
166 | int | |
167 | icreate(struct icreateargs *uap, rval_t * rvp) | |
168 | { | |
169 | return ENOSYS; | |
170 | } | |
171 | ||
172 | int | |
173 | afs_syscall_icreate(dev, near_inode, param1, param2, param3, param4, rvp) | |
174 | afs_uint32 dev, near_inode, param1, param2, param3, param4; | |
175 | rval_t *rvp; | |
176 | { | |
177 | return ENOSYS; | |
178 | } | |
179 | ||
180 | /* inode creation routines for icreatename64 entry point. | |
181 | * Create a name in the namespace as well as the inode. | |
182 | */ | |
183 | ||
184 | #include <afs/xfsattrs.h> | |
185 | #include <sys/attributes.h> | |
186 | ||
187 | extern char *int_to_base64(char *, int); | |
188 | ||
189 | /* Lock against races creating/removing directory - vos zap RO, vos create RW*/ | |
190 | kmutex_t afs_vol_create_lock; | |
191 | int afs_vol_create_lock_inited = 0; | |
192 | #define AFS_LOCK_VOL_CREATE() { \ | |
193 | if (!afs_vol_create_lock_inited) { \ | |
194 | mutex_init(&afs_vol_create_lock, MUTEX_DEFAULT, \ | |
195 | "afs_vol_create_lock"); \ | |
196 | afs_vol_create_lock_inited = 1; \ | |
197 | } \ | |
198 | mutex_enter(&afs_vol_create_lock); \ | |
199 | } | |
200 | #define AFS_UNLOCK_VOL_CREATE() mutex_exit(&afs_vol_create_lock) | |
201 | ||
202 | ||
203 | /* xfs_icreatename64 | |
204 | * Create an AFS inode in the XFS name space. If required create the proper | |
205 | * containing directory. See sys/xfsattrs.h for the details on the naming | |
206 | * conventions and the usage of file and directory attributes. | |
207 | * | |
208 | * The inode parameters are stored in an XFS attribute called "AFS". In | |
209 | * addition gid is set to XFS_VICEMAGIC and uid is set to the low 31 bits | |
210 | * of the RW volume id. This is so inode verification in iinc and idec | |
211 | * don't need to get the attribute. Note that only the low 31 bits are set. | |
212 | * This is because chmod only accepts up to MAX_UID and chmod is used | |
213 | * to correct these values in xfs_ListViceInodes. | |
214 | */ | |
215 | int | |
216 | xfs_icreatename64(struct vfs *vfsp, int datap, int datalen, | |
217 | afs_inode_params_t params, ino_t * inop) | |
218 | { | |
219 | #define AFS_PNAME_SIZE 16 | |
220 | char path[64]; | |
221 | char name[64]; | |
222 | b64_string_t stmp1, stmp2; | |
223 | afs_xfs_attr_t attrs; | |
224 | struct vattr vattr; | |
225 | int name_version = AFS_XFS_NAME_VERS; | |
226 | int code = 0, unused; | |
227 | struct vnode *vp; | |
228 | struct vnode *dvp; | |
229 | int rw_vno; /* volume ID of parent volume */ | |
230 | int i; | |
231 | int createdDir = 0; | |
232 | size_t junk; | |
233 | char *s; | |
234 | ||
235 | ||
236 | /* Get vnode for directory which will contain new inode. */ | |
237 | if (datalen >= AFS_PNAME_SIZE) | |
238 | return E2BIG; | |
239 | ||
240 | AFS_COPYINSTR((char *)datap, path, AFS_PNAME_SIZE - 1, &junk, unused); | |
241 | if (*path != '/') { | |
242 | return EINVAL; | |
243 | } | |
244 | ||
245 | rw_vno = (params[1] == INODESPECIAL) ? params[3] : params[0]; | |
246 | ||
247 | /* directory name */ | |
248 | strcat(path, "/"); | |
249 | strcat(path, AFS_INODE_DIR_NAME); | |
250 | strcat(path, int_to_base64(stmp1, rw_vno)); | |
251 | ||
252 | if (params[1] == INODESPECIAL) | |
253 | AFS_LOCK_VOL_CREATE(); | |
254 | ||
255 | code = gop_lookupname(path, AFS_UIOSYS, FOLLOW, &dvp); | |
256 | if (code == ENOENT) { | |
257 | /* Maybe it's an old directory name format. */ | |
258 | AFS_COPYINSTR((char *)datap, name, AFS_PNAME_SIZE - 1, &junk, unused); | |
259 | strcat(name, "/."); | |
260 | strcat(name, int_to_base64(stmp1, rw_vno)); | |
261 | code = gop_lookupname(name, AFS_UIOSYS, FOLLOW, &dvp); | |
262 | if (!code) { | |
263 | /* Use old name format. */ | |
264 | strcpy(path, name); | |
265 | name_version = AFS_XFS_NAME_VERS1; | |
266 | } | |
267 | } | |
268 | ||
269 | if (code == ENOENT) { | |
270 | afs_xfs_dattr_t dattr; | |
271 | /* make directory. */ | |
272 | ||
273 | code = | |
274 | AFS_VN_OPEN(path, UIO_SYSSPACE, FCREAT | FEXCL, 0700, &dvp, | |
275 | CRMKDIR); | |
276 | if (code) { | |
277 | if (code == EEXIST) { | |
278 | /* someone beat us to it? */ | |
279 | code = gop_lookupname(path, AFS_UIOSYS, NO_FOLLOW, &dvp); | |
280 | } | |
281 | if (code) { | |
282 | AFS_UNLOCK_VOL_CREATE(); | |
283 | return code; | |
284 | } | |
285 | } else | |
286 | createdDir = 1; | |
287 | memset(&dattr, 0, sizeof(dattr)); | |
288 | dattr.atd_version = AFS_XFS_ATD_VERS; | |
289 | dattr.atd_volume = rw_vno; | |
290 | AFS_VOP_ATTR_SET(dvp, AFS_XFS_DATTR, (char *)&dattr, | |
291 | SIZEOF_XFS_DATTR_T, ATTR_ROOT | ATTR_CREATE, | |
292 | OSI_GET_CURRENT_CRED(), code); | |
293 | if (code) { | |
294 | VN_RELE(dvp); | |
295 | if (createdDir) | |
296 | (void)vn_remove(path, UIO_SYSSPACE, RMDIRECTORY); | |
297 | AFS_UNLOCK_VOL_CREATE(); | |
298 | return code; | |
299 | } | |
300 | } | |
301 | ||
302 | vattr.va_mask = AT_FSID | AT_NODEID; /* gets a guick return using FSID */ | |
303 | AFS_VOP_GETATTR(dvp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); | |
304 | if (code) { | |
305 | VN_RELE(dvp); | |
306 | return code; | |
307 | } | |
308 | ||
309 | memset(&attrs, 0, sizeof(attrs)); | |
310 | attrs.at_pino = vattr.va_nodeid; | |
311 | VN_RELE(dvp); | |
312 | ||
313 | /* Create the desired file. Use up to ten tries to create a unique name. */ | |
314 | (void)strcpy(name, path); | |
315 | (void)strcat(name, "/."); | |
316 | (void)strcat(name, int_to_base64(stmp2, params[2])); | |
317 | s = &name[strlen(name)]; | |
318 | ||
319 | attrs.at_tag = 0; /* Initial guess at a unique tag. */ | |
320 | for (i = 0; i < 10; i++) { | |
321 | *s = '\0'; | |
322 | strcat(s, "."); | |
323 | strcat(s, int_to_base64(stmp1, attrs.at_tag)); | |
324 | code = | |
325 | AFS_VN_OPEN(name, UIO_SYSSPACE, FCREAT | FEXCL, 0600, &vp, | |
326 | CRCREAT); | |
327 | if (!code || code != EEXIST) | |
328 | break; | |
329 | ||
330 | attrs.at_tag++; | |
331 | } | |
332 | /* Unlock the creation process since the directory now has a file in it. */ | |
333 | if (params[1] == INODESPECIAL) | |
334 | AFS_UNLOCK_VOL_CREATE(); | |
335 | ||
336 | if (!code) { | |
337 | /* Set attributes. */ | |
338 | memcpy((char *)attrs.at_param, (char *)params, | |
339 | sizeof(afs_inode_params_t)); | |
340 | attrs.at_attr_version = AFS_XFS_ATTR_VERS; | |
341 | attrs.at_name_version = name_version; | |
342 | AFS_VOP_ATTR_SET(vp, AFS_XFS_ATTR, (char *)&attrs, SIZEOF_XFS_ATTR_T, | |
343 | ATTR_ROOT | ATTR_CREATE, OSI_GET_CURRENT_CRED(), | |
344 | code); | |
345 | if (!code) { | |
346 | vattr.va_mode = 1; | |
347 | vattr.va_uid = AFS_XFS_VNO_CLIP(params[0]); | |
348 | vattr.va_gid = XFS_VICEMAGIC; | |
349 | vattr.va_mask = AT_MODE | AT_UID | AT_GID; | |
350 | AFS_VOP_SETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); | |
351 | } | |
352 | if (!code) { | |
353 | vattr.va_mask = AT_NODEID; | |
354 | AFS_VOP_GETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); | |
355 | } | |
356 | if (!code) | |
357 | *inop = vattr.va_nodeid; | |
358 | VN_RELE(vp); | |
359 | } | |
360 | ||
361 | if (code) { | |
362 | /* remove partially created file. */ | |
363 | (void)vn_remove(name, UIO_SYSSPACE, RMFILE); | |
364 | ||
365 | /* and directory if volume special file. */ | |
366 | if (createdDir) { | |
367 | AFS_LOCK_VOL_CREATE(); | |
368 | (void)vn_remove(path, UIO_SYSSPACE, RMDIRECTORY); | |
369 | AFS_UNLOCK_VOL_CREATE(); | |
370 | } | |
371 | } | |
372 | return code; | |
373 | } | |
374 | ||
375 | /* afs_syscall_icreatename64 | |
376 | * This is the icreatename64 entry point used by the XFS | |
377 | * fileserver suite. | |
378 | */ | |
379 | int | |
380 | afs_syscall_icreatename64(int dev, int datap, int datalen, int paramp, | |
381 | int inop) | |
382 | { | |
383 | struct vfs *vfsp; | |
384 | afs_inode_params_t param; | |
385 | int code; | |
386 | rval_t rval; | |
387 | ino_t ino; | |
388 | ||
389 | ||
390 | if (!afs_suser(NULL)) | |
391 | return EPERM; | |
392 | ||
393 | vfsp = vfs_devsearch(dev, VFS_FSTYPE_ANY); | |
394 | if (vfsp == NULL) { | |
395 | return ENXIO; | |
396 | } | |
397 | ||
398 | AFS_COPYIN((char *)paramp, (char *)param, sizeof(afs_inode_params_t), | |
399 | code); | |
400 | if (vfsp->vfs_fstype == xfs_fstype) { | |
401 | code = xfs_icreatename64(vfsp, datap, datalen, param, &ino); | |
402 | if (code) | |
403 | return code; | |
404 | else { | |
405 | AFS_COPYOUT((char *)&ino, (char *)inop, sizeof(ino_t), code); | |
406 | return code; | |
407 | } | |
408 | } | |
409 | return ENXIO; | |
410 | } | |
411 | ||
412 | /* | |
413 | * iopen system calls -- open an inode for reading/writing | |
414 | * Restricted to super user. | |
415 | * Any IFREG files. | |
416 | */ | |
417 | struct iopenargs { | |
418 | sysarg_t dev; | |
419 | sysarg_t inode; | |
420 | sysarg_t usrmod; | |
421 | }; | |
422 | ||
423 | struct iopenargs64 { | |
424 | sysarg_t dev; | |
425 | sysarg_t inode_hi; | |
426 | sysarg_t inode_lo; | |
427 | sysarg_t usrmod; | |
428 | }; | |
429 | ||
430 | int | |
431 | afs_syscall_iopen(int dev, ino_t inode, int usrmod, rval_t * rvp) | |
432 | { | |
433 | struct file *fp; | |
434 | int fd; | |
435 | int error; | |
436 | struct vfs *vfsp; | |
437 | struct vnode *vp; | |
438 | ||
439 | AFS_STATCNT(afs_syscall_iopen); | |
440 | if (!afs_suser(NULL)) | |
441 | return EPERM; | |
442 | vfsp = vfs_devsearch(dev, xfs_fstype); | |
443 | if (!vfsp) | |
444 | return ENXIO; | |
445 | ||
446 | if (vfsp->vfs_fstype == xfs_fstype) { | |
447 | struct xfs_inode *xip; | |
448 | if (error = xfs_igetinode(vfsp, (dev_t) dev, inode, &xip)) | |
449 | return error; | |
450 | vp = XFS_ITOV(xip); | |
451 | if (error = vfile_alloc((usrmod + 1) & (FMASK), &fp, &fd)) { | |
452 | VN_RELE(vp); | |
453 | return error; | |
454 | } | |
455 | } else { | |
456 | osi_Panic("afs_syscall_iopen: bad fstype = %d\n", vfsp->vfs_fstype); | |
457 | } | |
458 | vfile_ready(fp, vp); | |
459 | rvp->r_val1 = fd; | |
460 | return 0; | |
461 | } | |
462 | ||
463 | int | |
464 | iopen(struct iopenargs *uap, rval_t * rvp) | |
465 | { | |
466 | AFS_STATCNT(iopen); | |
467 | return (afs_syscall_iopen | |
468 | (uap->dev, (ino_t) uap->inode, uap->usrmod, rvp)); | |
469 | } | |
470 | ||
471 | int | |
472 | iopen64(struct iopenargs64 *uap, rval_t * rvp) | |
473 | { | |
474 | AFS_STATCNT(iopen); | |
475 | return (afs_syscall_iopen | |
476 | (uap->dev, (ino_t) ((uap->inode_hi << 32) | uap->inode_lo), | |
477 | uap->usrmod, rvp)); | |
478 | } | |
479 | ||
480 | /* | |
481 | * Support for iinc() and idec() system calls--increment or decrement | |
482 | * count on inode. | |
483 | * Restricted to super user. | |
484 | * Only VICEMAGIC type inodes. | |
485 | */ | |
486 | ||
487 | /* xfs_iincdec | |
488 | * | |
489 | * XFS iinc/idec code. Uses 64 bit inode numbers. | |
490 | */ | |
491 | static int | |
492 | xfs_iincdec64(struct vfs *vfsp, ino_t inode, int inode_p1, int amount) | |
493 | { | |
494 | vnode_t *vp; | |
495 | xfs_inode_t *ip; | |
496 | int code = 0; | |
497 | afs_xfs_attr_t attrs; | |
498 | int length = SIZEOF_XFS_ATTR_T; | |
499 | afs_xfs_dattr_t dattr; | |
500 | struct vattr vattr; | |
501 | int nlink; | |
502 | int vol; | |
503 | ||
504 | code = | |
505 | xfs_iget((((struct mount *)((vfsp)->vfs_bh.bh_first)->bd_pdata)), | |
506 | (void *)0, (xfs_ino_t) inode, XFS_ILOCK_SHARED, &ip, | |
507 | (daddr_t) 0); | |
508 | if (code) | |
509 | return code; | |
510 | ||
511 | vp = XFS_ITOV(ip); | |
512 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
513 | ||
514 | vattr.va_mask = AT_GID | AT_UID | AT_MODE; | |
515 | AFS_VOP_GETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); | |
516 | if (code) | |
517 | code = EPERM; | |
518 | ||
519 | if (!code && (vattr.va_gid != XFS_VICEMAGIC)) | |
520 | code = EPERM; | |
521 | ||
522 | if (!code && (AFS_XFS_VNO_CLIP(inode_p1) != vattr.va_uid)) | |
523 | code = ENXIO; | |
524 | ||
525 | if (code) { | |
526 | VN_RELE(vp); | |
527 | return code; | |
528 | } | |
529 | ||
530 | nlink = vattr.va_mode & AFS_XFS_MODE_LINK_MASK; | |
531 | nlink += amount; | |
532 | if (nlink > 07) { | |
533 | code = EOVERFLOW; | |
534 | } | |
535 | if (nlink > 0) { | |
536 | vattr.va_mode &= ~AFS_XFS_MODE_LINK_MASK; | |
537 | vattr.va_mode |= nlink; | |
538 | vattr.va_mask = AT_MODE; | |
539 | AFS_VOP_SETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); | |
540 | VN_RELE(vp); | |
541 | return code; | |
542 | } else { | |
543 | char path[64]; | |
544 | b64_string_t stmp1, stmp2; | |
545 | vnode_t *dvp; | |
546 | xfs_inode_t *ip; | |
547 | ||
548 | length = SIZEOF_XFS_ATTR_T; | |
549 | AFS_VOP_ATTR_GET(vp, AFS_XFS_ATTR, (char *)&attrs, &length, ATTR_ROOT, | |
550 | OSI_GET_CURRENT_CRED(), code); | |
551 | VN_RELE(vp); | |
552 | if (!code) { | |
553 | if (length != SIZEOF_XFS_ATTR_T | |
554 | || attrs.at_attr_version != AFS_XFS_ATTR_VERS) | |
555 | return EINVAL; | |
556 | } | |
557 | /* Get the vnode for the directory this file is in. */ | |
558 | if (!attrs.at_pino) | |
559 | return ENOENT; | |
560 | ||
561 | code = xfs_getinode(vp->v_vfsp, NULL, attrs.at_pino, &ip); | |
562 | if (code) | |
563 | return code; | |
564 | ||
565 | dvp = XFS_ITOV(ip); | |
566 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
567 | ||
568 | /* Verify directory attributes. */ | |
569 | length = SIZEOF_XFS_DATTR_T; | |
570 | AFS_VOP_ATTR_GET(dvp, AFS_XFS_DATTR, (char *)&dattr, &length, | |
571 | ATTR_ROOT, OSI_GET_CURRENT_CRED(), code); | |
572 | if (!code) { | |
573 | if (length != SIZEOF_XFS_DATTR_T | |
574 | || dattr.atd_version != AFS_XFS_ATD_VERS) | |
575 | code = ENXIO; | |
576 | } | |
577 | if (code) { | |
578 | VN_RELE(dvp); | |
579 | return code; | |
580 | } | |
581 | ||
582 | strcpy(path, "."); | |
583 | strcat(path, int_to_base64(stmp1, attrs.at_param[2])); | |
584 | strcat(path, "."); | |
585 | strcat(path, int_to_base64(stmp1, attrs.at_tag)); | |
586 | ||
587 | AFS_VOP_REMOVE(dvp, path, OSI_GET_CURRENT_CRED(), code); | |
588 | ||
589 | if (!code) { | |
590 | int code2; | |
591 | vattr.va_mask = AT_NLINK; | |
592 | AFS_VOP_GETATTR(dvp, &vattr, 0, OSI_GET_CURRENT_CRED(), code2); | |
593 | if (!code2) { | |
594 | if (vattr.va_nlink == 2) { | |
595 | vnode_t *ddvp; /* parent of volume directory. */ | |
596 | /* Try to remove the directory if this is a volume | |
597 | * special file. It's ok to fail. | |
598 | */ | |
599 | AFS_VOP_LOOKUP(dvp, "..", &ddvp, NULL, | |
600 | 0, OSI_GET_CURRENT_RDIR(), | |
601 | OSI_GET_CURRENT_CRED(), code2); | |
602 | if (!code2) { | |
603 | VN_RELE(dvp); | |
604 | dvp = (vnode_t *) 0; | |
605 | strcpy(path, "."); | |
606 | if (attrs.at_name_version == AFS_XFS_NAME_VERS2) | |
607 | strcpy(path, AFS_INODE_DIR_NAME); | |
608 | else | |
609 | strcpy(path, "."); | |
610 | int_to_base64(stmp1, | |
611 | (attrs.at_param[1] == | |
612 | INODESPECIAL) ? attrs. | |
613 | at_param[3] : attrs.at_param[0]); | |
614 | strcat(path, stmp1); | |
615 | AFS_LOCK_VOL_CREATE(); | |
616 | AFS_VOP_RMDIR(ddvp, path, OSI_GET_CURRENT_CDIR(), | |
617 | OSI_GET_CURRENT_CRED(), code2); | |
618 | AFS_UNLOCK_VOL_CREATE(); | |
619 | VN_RELE(ddvp); | |
620 | } | |
621 | } | |
622 | } | |
623 | } | |
624 | if (dvp) | |
625 | VN_RELE(dvp); | |
626 | } | |
627 | return code; | |
628 | } | |
629 | ||
630 | int | |
631 | iincdec64(int dev, int inode_hi, int inode_lo, int inode_p1, int amount) | |
632 | { | |
633 | struct vfs *vfsp; | |
634 | ||
635 | if (!afs_suser(NULL)) | |
636 | return EPERM; | |
637 | vfsp = vfs_devsearch(dev, VFS_FSTYPE_ANY); | |
638 | if (!vfsp) { | |
639 | return ENXIO; | |
640 | } | |
641 | ||
642 | if (vfsp->vfs_fstype == xfs_fstype) { | |
643 | ino_t inode; | |
644 | inode = inode_hi; | |
645 | inode <<= 32; | |
646 | inode |= inode_lo; | |
647 | return xfs_iincdec64(vfsp, inode, inode_p1, amount); | |
648 | } | |
649 | return ENXIO; | |
650 | } | |
651 | ||
652 | int | |
653 | afs_syscall_idec64(int dev, int inode_hi, int inode_lo, int inode_p1) | |
654 | { | |
655 | return iincdec64(dev, inode_hi, inode_lo, inode_p1, -1); | |
656 | } | |
657 | ||
658 | int | |
659 | afs_syscall_iinc64(int dev, int inode_hi, int inode_lo, int inode_p1) | |
660 | { | |
661 | return iincdec64(dev, inode_hi, inode_lo, inode_p1, 1); | |
662 | } | |
663 | ||
664 | struct iincargs { | |
665 | sysarg_t dev; | |
666 | sysarg_t inode; | |
667 | sysarg_t inode_p1; | |
668 | }; | |
669 | ||
670 | int | |
671 | iinc(struct iincargs *uap, rval_t * rvp) | |
672 | { | |
673 | AFS_STATCNT(iinc); | |
674 | return ENOTSUP; | |
675 | } | |
676 | ||
677 | int | |
678 | idec(struct iincargs *uap, rval_t * rvp) | |
679 | { | |
680 | AFS_STATCNT(idec); | |
681 | return ENOTSUP; | |
682 | } | |
683 | ||
684 | /* afs_syscall_ilistinode64 | |
685 | * Gathers up all required info for ListViceInodes in one system call. | |
686 | */ | |
687 | int | |
688 | afs_syscall_ilistinode64(int dev, int inode_hi, int inode_lo, int datap, | |
689 | int datalenp) | |
690 | { | |
691 | int code = 0; | |
692 | ino_t inode; | |
693 | xfs_inode_t *ip; | |
694 | vfs_t *vfsp; | |
695 | vnode_t *vp; | |
696 | struct vattr vattr; | |
697 | afs_xfs_attr_t attrs; | |
698 | int length; | |
699 | i_list_inode_t data; | |
700 | int idatalen; | |
701 | ||
702 | if (!afs_suser(NULL)) | |
703 | return EPERM; | |
704 | vfsp = vfs_devsearch(dev, xfs_fstype); | |
705 | if (!vfsp) { | |
706 | return ENXIO; | |
707 | } | |
708 | ||
709 | AFS_COPYIN((char *)datalenp, &idatalen, sizeof(int), code); | |
710 | if (idatalen < sizeof(i_list_inode_t)) { | |
711 | idatalen = sizeof(i_list_inode_t); | |
712 | AFS_COPYOUT((char *)datalenp, (char *)&idatalen, sizeof(int), code); | |
713 | return E2BIG; | |
714 | } | |
715 | idatalen = sizeof(i_list_inode_t); | |
716 | AFS_COPYOUT((char *)datalenp, (char *)&idatalen, sizeof(int), code); | |
717 | ||
718 | AFS_COPYIN((char *)datap, (char *)&data, sizeof(i_list_inode_t), code); | |
719 | if (data.ili_version != AFS_XFS_ILI_VERSION) { | |
720 | data.ili_version = AFS_XFS_ILI_VERSION; | |
721 | AFS_COPYOUT((char *)&data, (char *)datap, sizeof(i_list_inode_t), | |
722 | code); | |
723 | return EINVAL; | |
724 | } | |
725 | ||
726 | ||
727 | inode = inode_hi; | |
728 | inode <<= 32; | |
729 | inode |= inode_lo; | |
730 | code = | |
731 | xfs_iget((((struct mount *)((vfsp)->vfs_bh.bh_first)->bd_pdata)), | |
732 | (void *)0, (xfs_ino_t) inode, XFS_ILOCK_SHARED, &ip, | |
733 | (daddr_t) 0); | |
734 | if (code) | |
735 | return code; | |
736 | ||
737 | vp = XFS_ITOV(ip); | |
738 | xfs_iunlock(ip, XFS_ILOCK_SHARED); | |
739 | ||
740 | length = SIZEOF_XFS_ATTR_T; | |
741 | ||
742 | AFS_VOP_ATTR_GET(vp, AFS_XFS_ATTR, (char *)&attrs, &length, ATTR_ROOT, | |
743 | OSI_GET_CURRENT_CRED(), code); | |
744 | if (code) { | |
745 | code = EPERM; | |
746 | } | |
747 | ||
748 | if (!code) { | |
749 | if (attrs.at_attr_version != AFS_XFS_ATTR_VERS) | |
750 | code = EINVAL; | |
751 | } | |
752 | ||
753 | if (!code) { | |
754 | vattr.va_mask = AT_STAT; | |
755 | AFS_VOP_GETATTR(vp, &vattr, 0, OSI_GET_CURRENT_CRED(), code); | |
756 | } | |
757 | ||
758 | if (!code) { | |
759 | memset(&data, 0, sizeof(data)); | |
760 | data.ili_info.inodeNumber = inode; | |
761 | data.ili_info.byteCount = vattr.va_size; | |
762 | data.ili_info.linkCount = (vattr.va_mode & AFS_XFS_MODE_LINK_MASK); | |
763 | memcpy((char *)data.ili_info.param, (char *)attrs.at_param, | |
764 | sizeof(data.ili_info.param)); | |
765 | data.ili_attr_version = attrs.at_attr_version; | |
766 | data.ili_name_version = attrs.at_name_version; | |
767 | data.ili_tag = attrs.at_tag; | |
768 | data.ili_pino = attrs.at_pino; | |
769 | data.ili_vno = vattr.va_uid; | |
770 | data.ili_magic = vattr.va_gid; | |
771 | AFS_COPYOUT((char *)&data, (char *)datap, sizeof(data), code); | |
772 | } | |
773 | VN_RELE(vp); | |
774 | return code; | |
775 | } |