2 * Copyright 2000, International Business Machines Corporation and others.
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
10 #include <afsconfig.h>
11 #include "afs/param.h"
14 #include "afs/sysincludes.h" /* Standard vendor system headers */
16 #include "h/syscallargs.h"
19 #include "h/sysproto.h"
21 #include "afsincludes.h" /* Afs-based standard headers */
22 #include "afs/afs_stats.h" /* afs statistics */
24 #include "afs/afs_bypasscache.h"
25 #include "rx/rx_globals.h"
27 struct VenusFid afs_rootFid;
28 afs_int32 afs_waitForever = 0;
29 short afs_waitForeverCount = 0;
30 afs_int32 afs_showflags = GAGUSER | GAGCONSOLE; /* show all messages */
33 afs_int32 afs_is_disconnected;
34 afs_int32 afs_is_discon_rw;
35 /* On reconnection, turn this knob on until it finishes,
38 afs_int32 afs_in_sync = 0;
47 * A set of handy little functions for encoding and decoding
48 * pioctls without losing your marbles, or memory integrity
52 afs_pd_alloc(struct afs_pdata *apd, size_t size) {
54 if (size > AFS_LRALLOCSIZ)
55 apd->ptr = osi_Alloc(size + 1);
57 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
62 apd->remaining = size;
68 afs_pd_free(struct afs_pdata *apd) {
72 if (apd->remaining > AFS_LRALLOCSIZ)
73 osi_Free(apd->ptr, apd->remaining + 1);
75 osi_FreeLargeSpace(apd->ptr);
82 afs_pd_where(struct afs_pdata *apd) {
83 return apd ? apd->ptr : NULL;
87 afs_pd_remaining(struct afs_pdata *apd) {
88 return apd ? apd->remaining : 0;
92 afs_pd_skip(struct afs_pdata *apd, size_t skip) {
93 if (apd == NULL || apd->remaining < skip)
95 apd->remaining -= skip;
102 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val) {
103 if (apd == NULL || apd->remaining < sizeof(afs_int32))
105 apd->remaining -= sizeof(afs_int32);
106 *val = *(afs_int32 *)apd->ptr;
107 apd->ptr += sizeof(afs_int32);
112 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val) {
113 return afs_pd_getInt(apd, (afs_int32 *)val);
117 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes) {
118 if (apd == NULL || apd->remaining < bytes)
120 apd->remaining -= bytes;
121 memcpy(dest, apd->ptr, bytes);
127 afs_pd_inline(struct afs_pdata *apd, size_t bytes) {
130 if (apd == NULL || apd->remaining < bytes)
135 apd->remaining -= bytes;
142 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen) {
145 if (apd == NULL || apd->remaining <= 0)
147 len = strlen(apd->ptr) + 1;
150 memcpy(str, apd->ptr, len);
152 apd->remaining -= len;
157 afs_pd_getStringPtr(struct afs_pdata *apd, char **str) {
160 if (apd == NULL || apd->remaining <= 0)
162 len = strlen(apd->ptr) + 1;
165 apd->remaining -= len;
170 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val) {
171 if (apd == NULL || apd->remaining < sizeof(afs_int32))
173 *(afs_int32 *)apd->ptr = val;
174 apd->ptr += sizeof(afs_int32);
175 apd->remaining -= sizeof(afs_int32);
181 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len) {
182 if (apd == NULL || apd->remaining < len)
184 memcpy(apd->ptr, bytes, len);
186 apd->remaining -= len;
191 afs_pd_putString(struct afs_pdata *apd, char *str) {
193 /* Add 1 so we copy the NULL too */
194 return afs_pd_putBytes(apd, str, strlen(str) +1);
198 * \defgroup pioctl Path IOCTL functions
200 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
203 * the AFS vcache structure in use by pioctl
207 * the AFS vrequest structure
209 * an afs_pdata block describing the data received from the caller
211 * an afs_pdata block describing a pre-allocated block for output
213 * UNIX credentials structure underlying the operation
216 #define DECL_PIOCTL(x) \
217 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
218 struct afs_pdata *ain, struct afs_pdata *aout, \
221 /* Prototypes for pioctl routines */
222 DECL_PIOCTL(PGetFID);
223 DECL_PIOCTL(PSetAcl);
224 DECL_PIOCTL(PStoreBehind);
225 DECL_PIOCTL(PGCPAGs);
226 DECL_PIOCTL(PGetAcl);
229 DECL_PIOCTL(PGetFileCell);
230 DECL_PIOCTL(PGetWSCell);
231 DECL_PIOCTL(PGetUserCell);
232 DECL_PIOCTL(PSetTokens);
233 DECL_PIOCTL(PGetVolumeStatus);
234 DECL_PIOCTL(PSetVolumeStatus);
236 DECL_PIOCTL(PNewStatMount);
237 DECL_PIOCTL(PGetTokens);
239 DECL_PIOCTL(PMariner);
240 DECL_PIOCTL(PCheckServers);
241 DECL_PIOCTL(PCheckVolNames);
242 DECL_PIOCTL(PCheckAuth);
243 DECL_PIOCTL(PFindVolume);
244 DECL_PIOCTL(PViceAccess);
245 DECL_PIOCTL(PSetCacheSize);
246 DECL_PIOCTL(PGetCacheSize);
247 DECL_PIOCTL(PRemoveCallBack);
248 DECL_PIOCTL(PNewCell);
249 DECL_PIOCTL(PNewAlias);
250 DECL_PIOCTL(PListCells);
251 DECL_PIOCTL(PListAliases);
252 DECL_PIOCTL(PRemoveMount);
253 DECL_PIOCTL(PGetCellStatus);
254 DECL_PIOCTL(PSetCellStatus);
255 DECL_PIOCTL(PFlushVolumeData);
256 DECL_PIOCTL(PGetVnodeXStatus);
257 DECL_PIOCTL(PGetVnodeXStatus2);
258 DECL_PIOCTL(PSetSysName);
259 DECL_PIOCTL(PSetSPrefs);
260 DECL_PIOCTL(PSetSPrefs33);
261 DECL_PIOCTL(PGetSPrefs);
262 DECL_PIOCTL(PExportAfs);
264 DECL_PIOCTL(PTwiddleRx);
265 DECL_PIOCTL(PGetInitParams);
266 DECL_PIOCTL(PGetRxkcrypt);
267 DECL_PIOCTL(PSetRxkcrypt);
268 DECL_PIOCTL(PGetCPrefs);
269 DECL_PIOCTL(PSetCPrefs);
270 DECL_PIOCTL(PFlushMount);
271 DECL_PIOCTL(PRxStatProc);
272 DECL_PIOCTL(PRxStatPeer);
273 DECL_PIOCTL(PPrefetchFromTape);
275 DECL_PIOCTL(PCallBackAddr);
276 DECL_PIOCTL(PDiscon);
277 DECL_PIOCTL(PNFSNukeCreds);
278 DECL_PIOCTL(PNewUuid);
279 DECL_PIOCTL(PPrecache);
280 DECL_PIOCTL(PGetPAG);
281 #if defined(AFS_CACHE_BYPASS)
282 DECL_PIOCTL(PSetCachingThreshold);
283 DECL_PIOCTL(PSetCachingBlkSize);
287 * A macro that says whether we're going to need HandleClientContext().
288 * This is currently used only by the nfs translator.
290 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
291 #define AFS_NEED_CLIENTCONTEXT
294 /* Prototypes for private routines */
295 #ifdef AFS_NEED_CLIENTCONTEXT
296 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
300 int HandleIoctl(register struct vcache *avc, register afs_int32 acom,
301 struct afs_ioctl *adata);
302 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
303 register struct afs_ioctl *ablob, int afollow,
304 afs_ucred_t **acred);
305 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
308 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
309 struct afs_pdata *, struct afs_pdata *,
312 static pioctlFunction VpioctlSw[] = {
317 PGetVolumeStatus, /* 4 */
318 PSetVolumeStatus, /* 5 */
323 PCheckServers, /* 10 */
324 PCheckVolNames, /* 11 */
326 PBogus, /* 13 -- used to be quick check time */
327 PFindVolume, /* 14 */
328 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
329 PBogus, /* 16 -- used to be testing code */
330 PNoop, /* 17 -- used to be enable group */
331 PNoop, /* 18 -- used to be disable group */
332 PBogus, /* 19 -- used to be list group */
333 PViceAccess, /* 20 */
334 PUnlog, /* 21 -- unlog *is* unpag in this system */
335 PGetFID, /* 22 -- get file ID */
336 PBogus, /* 23 -- used to be waitforever */
337 PSetCacheSize, /* 24 */
338 PRemoveCallBack, /* 25 -- flush only the callback */
341 PRemoveMount, /* 28 -- delete mount point */
342 PNewStatMount, /* 29 -- new style mount point stat */
343 PGetFileCell, /* 30 -- get cell name for input file */
344 PGetWSCell, /* 31 -- get cell name for workstation */
345 PMariner, /* 32 - set/get mariner host */
346 PGetUserCell, /* 33 -- get cell name for user */
347 PBogus, /* 34 -- Enable/Disable logging */
348 PGetCellStatus, /* 35 */
349 PSetCellStatus, /* 36 */
350 PFlushVolumeData, /* 37 -- flush all data from a volume */
351 PSetSysName, /* 38 - Set system name */
352 PExportAfs, /* 39 - Export Afs to remote nfs clients */
353 PGetCacheSize, /* 40 - get cache size and usage */
354 PGetVnodeXStatus, /* 41 - get vcache's special status */
355 PSetSPrefs33, /* 42 - Set CM Server preferences... */
356 PGetSPrefs, /* 43 - Get CM Server preferences... */
357 PGag, /* 44 - turn off/on all CM messages */
358 PTwiddleRx, /* 45 - adjust some RX params */
359 PSetSPrefs, /* 46 - Set CM Server preferences... */
360 PStoreBehind, /* 47 - set degree of store behind to be done */
361 PGCPAGs, /* 48 - disable automatic pag gc-ing */
362 PGetInitParams, /* 49 - get initial cm params */
363 PGetCPrefs, /* 50 - get client interface addresses */
364 PSetCPrefs, /* 51 - set client interface addresses */
365 PFlushMount, /* 52 - flush mount symlink data */
366 PRxStatProc, /* 53 - control process RX statistics */
367 PRxStatPeer, /* 54 - control peer RX statistics */
368 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
369 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
370 PBogus, /* 57 -- arla: set file prio */
371 PBogus, /* 58 -- arla: fallback getfh */
372 PBogus, /* 59 -- arla: fallback fhopen */
373 PBogus, /* 60 -- arla: controls xfsdebug */
374 PBogus, /* 61 -- arla: controls arla debug */
375 PBogus, /* 62 -- arla: debug interface */
376 PBogus, /* 63 -- arla: print xfs status */
377 PBogus, /* 64 -- arla: force cache check */
378 PBogus, /* 65 -- arla: break callback */
379 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
380 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
381 PBogus, /* 68 -- arla: fetch stats */
382 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
385 static pioctlFunction CpioctlSw[] = {
387 PNewAlias, /* 1 -- create new cell alias */
388 PListAliases, /* 2 -- list cell aliases */
389 PCallBackAddr, /* 3 -- request addr for callback rxcon */
391 PDiscon, /* 5 -- get/set discon mode */
402 static pioctlFunction OpioctlSw[] = {
404 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
405 #if defined(AFS_CACHE_BYPASS)
406 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
408 PNoop /* 2 -- get/set cache-bypass size threshold */
412 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
413 int afs_nobody = NFS_NOBODY;
416 HandleIoctl(register struct vcache *avc, register afs_int32 acom,
417 struct afs_ioctl *adata)
419 register afs_int32 code;
422 AFS_STATCNT(HandleIoctl);
424 switch (acom & 0xff) {
426 avc->f.states |= CSafeStore;
428 /* SXW - Should we force a MetaData flush for this flag setting */
431 /* case 2 used to be abort store, but this is no longer provided,
432 * since it is impossible to implement under normal Unix.
436 /* return the name of the cell this file is open on */
437 register struct cell *tcell;
438 register afs_int32 i;
440 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
442 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
444 if (i > adata->out_size) {
445 /* 0 means we're not interested in the output */
446 if (adata->out_size != 0)
450 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
452 afs_PutCell(tcell, READ_LOCK);
458 case 49: /* VIOC_GETINITPARAMS */
459 if (adata->out_size < sizeof(struct cm_initparams)) {
462 AFS_COPYOUT(&cm_initParams, adata->out,
463 sizeof(struct cm_initparams), code);
475 return code; /* so far, none implemented */
479 /* For aix we don't temporarily bypass ioctl(2) but rather do our
480 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
481 * is now called from afs_gn_ioctl.
484 afs_ioctl(struct vcache *tvc, int cmd, int arg)
486 struct afs_ioctl data;
489 AFS_STATCNT(afs_ioctl);
490 if (((cmd >> 8) & 0xff) == 'V') {
491 /* This is a VICEIOCTL call */
492 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
495 error = HandleIoctl(tvc, cmd, &data);
498 /* No-op call; just return. */
502 # if defined(AFS_AIX32_ENV)
503 # if defined(AFS_AIX51_ENV)
506 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
508 # else /* __64BIT__ */
510 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
512 # endif /* __64BIT__ */
515 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
516 # endif /* AFS_AIX51_ENV */
521 # ifdef AFS_AIX51_ENV
524 } u_uap, *uap = &u_uap;
526 register struct vcache *tvc;
527 register int ioctlDone = 0, code = 0;
529 AFS_STATCNT(afs_xioctl);
533 # ifdef AFS_AIX51_ENV
537 if (setuerror(getf(uap->fd, &fd))) {
540 if (fd->f_type == DTYPE_VNODE) {
541 /* good, this is a vnode; next see if it is an AFS vnode */
542 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
543 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
544 /* This is an AFS vnode */
545 if (((uap->com >> 8) & 0xff) == 'V') {
546 register struct afs_ioctl *datap;
549 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
550 code=copyin_afs_ioctl((char *)uap->arg, datap);
552 osi_FreeSmallSpace(datap);
554 # if defined(AFS_AIX41_ENV)
557 return (setuerror(code), code);
559 code = HandleIoctl(tvc, uap->com, datap);
560 osi_FreeSmallSpace(datap);
563 # if defined(AFS_AIX41_ENV)
570 # if defined(AFS_AIX41_ENV)
572 # if defined(AFS_AIX51_ENV)
574 code = okioctl(fdes, com, arg, ext, arg2, arg3);
575 # else /* __64BIT__ */
576 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
577 # endif /* __64BIT__ */
578 # else /* !AFS_AIX51_ENV */
579 code = okioctl(fdes, com, arg, ext);
580 # endif /* AFS_AIX51_ENV */
582 # elif defined(AFS_AIX32_ENV)
583 okioctl(fdes, com, arg, ext);
586 # if defined(KERNEL_HAVE_UERROR)
589 # if !defined(AFS_AIX41_ENV)
590 return (getuerror()? -1 : u.u_ioctlrv);
592 return getuerror()? -1 : 0;
599 #elif defined(AFS_SGI_ENV)
600 # if defined(AFS_SGI65_ENV)
601 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
602 rval_t * rvalp, struct vopbd * vbds)
604 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
605 rval_t * rvalp, struct vopbd * vbds)
608 struct afs_ioctl data;
614 AFS_STATCNT(afs_ioctl);
615 if (((cmd >> 8) & 0xff) == 'V') {
616 /* This is a VICEIOCTL call */
617 error = copyin_afs_ioctl(arg, &data);
620 locked = ISAFS_GLOCK();
623 error = HandleIoctl(tvc, cmd, &data);
628 /* No-op call; just return. */
632 #elif defined(AFS_SUN5_ENV)
633 struct afs_ioctl_sys {
640 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
643 register struct vcache *tvc;
644 register int ioctlDone = 0, code = 0;
646 AFS_STATCNT(afs_xioctl);
647 # if defined(AFS_SUN57_ENV)
651 # elif defined(AFS_SUN54_ENV)
656 if (code = getf(uap->fd, &fd)) {
660 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
661 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
662 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
663 /* This is an AFS vnode */
664 if (((uap->com >> 8) & 0xff) == 'V') {
665 register struct afs_ioctl *datap;
668 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
669 code=copyin_afs_ioctl((char *)uap->arg, datap);
671 osi_FreeSmallSpace(datap);
673 # if defined(AFS_SUN54_ENV)
680 code = HandleIoctl(tvc, uap->com, datap);
681 osi_FreeSmallSpace(datap);
687 # if defined(AFS_SUN57_ENV)
689 # elif defined(AFS_SUN54_ENV)
695 code = ioctl(uap, rvp);
699 #elif defined(AFS_LINUX22_ENV)
700 struct afs_ioctl_sys {
705 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
708 struct afs_ioctl_sys ua, *uap = &ua;
709 register struct vcache *tvc;
710 register int ioctlDone = 0, code = 0;
712 AFS_STATCNT(afs_xioctl);
717 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
718 /* This is an AFS vnode */
719 if (((uap->com >> 8) & 0xff) == 'V') {
720 register struct afs_ioctl *datap;
722 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
723 code = copyin_afs_ioctl((char *)uap->arg, datap);
725 osi_FreeSmallSpace(datap);
729 code = HandleIoctl(tvc, uap->com, datap);
730 osi_FreeSmallSpace(datap);
739 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
747 afs_xioctl(afs_proc_t *p, register struct ioctl_args *uap, register_t *retval)
750 register struct vcache *tvc;
751 register int ioctlDone = 0, code = 0;
753 AFS_STATCNT(afs_xioctl);
754 if ((code = fdgetf(p, uap->fd, &fd)))
756 if (fd->f_type == DTYPE_VNODE) {
757 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
758 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
759 /* This is an AFS vnode */
760 if (((uap->com >> 8) & 0xff) == 'V') {
761 register struct afs_ioctl *datap;
763 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
764 code = copyin_afs_ioctl((char *)uap->arg, datap);
766 osi_FreeSmallSpace(datap);
770 code = HandleIoctl(tvc, uap->com, datap);
771 osi_FreeSmallSpace(datap);
779 return ioctl(p, uap, retval);
783 #elif defined(AFS_XBSD_ENV)
784 # if !defined(AFS_FBSD50_ENV)
787 afs_xioctl(struct thread *td, register struct ioctl_args *uap,
790 afs_proc_t *p = td->td_proc;
799 afs_xioctl(afs_proc_t *p, register struct ioctl_args *uap, register_t *retval)
802 register struct filedesc *fdp;
803 register struct vcache *tvc;
804 register int ioctlDone = 0, code = 0;
806 AFS_STATCNT(afs_xioctl);
808 if ((u_int) uap->fd >= fdp->fd_nfiles
809 || (fd = fdp->fd_ofiles[uap->fd]) == NULL)
811 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
813 /* first determine whether this is any sort of vnode */
814 if (fd->f_type == DTYPE_VNODE) {
815 /* good, this is a vnode; next see if it is an AFS vnode */
816 # if defined(AFS_OBSD_ENV)
818 IsAfsVnode((struct vnode *)fd->
819 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
821 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
823 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
824 /* This is an AFS vnode */
825 if (((uap->com >> 8) & 0xff) == 'V') {
826 register struct afs_ioctl *datap;
828 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
829 code = copyin_afs_ioctl((char *)uap->arg, datap);
831 osi_FreeSmallSpace(datap);
835 code = HandleIoctl(tvc, uap->com, datap);
836 osi_FreeSmallSpace(datap);
844 # if defined(AFS_FBSD50_ENV)
845 return ioctl(td, uap);
846 # elif defined(AFS_FBSD_ENV)
847 return ioctl(p, uap);
848 # elif defined(AFS_OBSD_ENV)
849 code = sys_ioctl(p, uap, retval);
855 #elif defined(UKERNEL)
863 } *uap = (struct a *)get_user_struct()->u_ap;
864 register struct file *fd;
865 register struct vcache *tvc;
866 register int ioctlDone = 0, code = 0;
868 AFS_STATCNT(afs_xioctl);
873 /* first determine whether this is any sort of vnode */
874 if (fd->f_type == DTYPE_VNODE) {
875 /* good, this is a vnode; next see if it is an AFS vnode */
876 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
877 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
878 /* This is an AFS vnode */
879 if (((uap->com >> 8) & 0xff) == 'V') {
880 register struct afs_ioctl *datap;
882 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
883 code=copyin_afs_ioctl((char *)uap->arg, datap);
885 osi_FreeSmallSpace(datap);
888 return (setuerror(code), code);
890 code = HandleIoctl(tvc, uap->com, datap);
891 osi_FreeSmallSpace(datap);
904 #endif /* AFS_HPUX102_ENV */
906 #if defined(AFS_SGI_ENV)
907 /* "pioctl" system call entry point; just pass argument to the parameterized
916 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
920 AFS_STATCNT(afs_pioctl);
922 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
924 # ifdef AFS_SGI64_ENV
931 #elif defined(AFS_FBSD50_ENV)
933 afs_pioctl(struct thread *td, void *args, int *retval)
940 } *uap = (struct a *)args;
942 AFS_STATCNT(afs_pioctl);
943 return (afs_syscall_pioctl
944 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
947 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
949 afs_pioctl(afs_proc_t *p, void *args, int *retval)
956 } *uap = (struct a *)args;
958 AFS_STATCNT(afs_pioctl);
959 # ifdef AFS_DARWIN80_ENV
960 return (afs_syscall_pioctl
961 (uap->path, uap->cmd, uap->cmarg, uap->follow,
964 return (afs_syscall_pioctl
965 (uap->path, uap->cmd, uap->cmarg, uap->follow,
966 p->p_cred->pc_ucred));
972 /* macro to avoid adding any more #ifdef's to pioctl code. */
973 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
974 #define PIOCTL_FREE_CRED() crfree(credp)
976 #define PIOCTL_FREE_CRED()
981 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
982 rval_t *vvp, afs_ucred_t *credp)
984 #ifdef AFS_DARWIN100_ENV
985 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
986 int follow, afs_ucred_t *credp)
987 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
988 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
991 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
995 struct afs_ioctl data;
996 #ifdef AFS_NEED_CLIENTCONTEXT
997 afs_ucred_t *tmpcred = NULL;
999 #if defined(AFS_NEED_CLIENTCONTEXT) || defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1000 afs_ucred_t *foreigncreds = NULL;
1002 register afs_int32 code = 0;
1003 struct vnode *vp = NULL;
1004 #ifdef AFS_AIX41_ENV
1005 struct ucred *credp = crref(); /* don't free until done! */
1007 #ifdef AFS_LINUX22_ENV
1008 cred_t *credp = crref(); /* don't free until done! */
1012 AFS_STATCNT(afs_syscall_pioctl);
1014 follow = 1; /* compat. with old venus */
1015 code = copyin_afs_ioctl(cmarg, &data);
1018 #if defined(KERNEL_HAVE_UERROR)
1023 if ((com & 0xff) == PSetClientContext) {
1024 #ifdef AFS_NEED_CLIENTCONTEXT
1025 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1026 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1028 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1032 crfree(foreigncreds);
1035 #if defined(KERNEL_HAVE_UERROR)
1036 return (setuerror(code), code);
1041 #else /* AFS_NEED_CLIENTCONTEXT */
1043 #endif /* AFS_NEED_CLIENTCONTEXT */
1045 #ifdef AFS_NEED_CLIENTCONTEXT
1048 * We could have done without temporary setting the u.u_cred below
1049 * (foreigncreds could be passed as param the pioctl modules)
1050 * but calls such as afs_osi_suser() doesn't allow that since it
1051 * references u.u_cred directly. We could, of course, do something
1052 * like afs_osi_suser(cred) which, I think, is better since it
1053 * generalizes and supports multi cred environments...
1055 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1057 credp = foreigncreds;
1058 #elif defined(AFS_AIX41_ENV)
1059 tmpcred = crref(); /* XXX */
1060 crset(foreigncreds);
1061 #elif defined(AFS_HPUX101_ENV)
1062 tmpcred = p_cred(u.u_procp);
1063 set_p_cred(u.u_procp, foreigncreds);
1064 #elif defined(AFS_SGI_ENV)
1065 tmpcred = OSI_GET_CURRENT_CRED();
1066 OSI_SET_CURRENT_CRED(foreigncreds);
1069 u.u_cred = foreigncreds;
1072 #endif /* AFS_NEED_CLIENTCONTEXT */
1073 if ((com & 0xff) == 15) {
1074 /* special case prefetch so entire pathname eval occurs in helper process.
1075 * otherwise, the pioctl call is essentially useless */
1076 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1078 Prefetch(path, &data, follow,
1079 foreigncreds ? foreigncreds : credp);
1081 code = Prefetch(path, &data, follow, osi_curcred());
1084 #if defined(KERNEL_HAVE_UERROR)
1091 #ifdef AFS_AIX41_ENV
1093 lookupname(path, USR, follow, NULL, &vp,
1094 foreigncreds ? foreigncreds : credp);
1096 #ifdef AFS_LINUX22_ENV
1097 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1099 vp = (struct vnode *)dp->d_inode;
1101 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1102 #if defined(AFS_FBSD80_ENV) /* XXX check on 7x */
1104 #endif /* AFS_FBSD80_ENV */
1105 #endif /* AFS_LINUX22_ENV */
1106 #endif /* AFS_AIX41_ENV */
1110 #if defined(KERNEL_HAVE_UERROR)
1118 #if defined(AFS_SUN510_ENV)
1119 if (vp && !IsAfsVnode(vp)) {
1120 struct vnode *realvp;
1122 #ifdef AFS_SUN511_ENV
1123 (VOP_REALVP(vp, &realvp, NULL) == 0)
1125 (VOP_REALVP(vp, &realvp) == 0)
1128 struct vnode *oldvp = vp;
1136 /* now make the call if we were passed no file, or were passed an AFS file */
1137 if (!vp || IsAfsVnode(vp)) {
1138 #if defined(AFS_SUN5_ENV)
1139 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1140 #elif defined(AFS_AIX41_ENV)
1142 struct ucred *cred1, *cred2;
1145 cred1 = cred2 = foreigncreds;
1147 cred1 = cred2 = credp;
1149 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1150 if (cred1 != cred2) {
1151 /* something changed the creds */
1155 #elif defined(AFS_HPUX101_ENV)
1157 struct ucred *cred = p_cred(u.u_procp);
1158 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1160 #elif defined(AFS_SGI_ENV)
1163 credp = OSI_GET_CURRENT_CRED();
1164 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1166 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1167 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1168 #elif defined(UKERNEL)
1169 code = afs_HandlePioctl(vp, com, &data, follow,
1170 &(get_user_struct()->u_cred));
1172 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1175 #if defined(KERNEL_HAVE_UERROR)
1178 code = EINVAL; /* not in /afs */
1183 #if defined(AFS_NEED_CLIENTCONTEXT)
1185 #ifdef AFS_AIX41_ENV
1186 crset(tmpcred); /* restore original credentials */
1188 #if defined(AFS_HPUX101_ENV)
1189 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1190 #elif defined(AFS_SGI_ENV)
1191 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1192 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1193 credp = tmpcred; /* restore original credentials */
1195 osi_curcred() = tmpcred; /* restore original credentials */
1196 #endif /* AFS_HPUX101_ENV */
1197 crfree(foreigncreds);
1200 #endif /* AFS_NEED_CLIENTCONTEXT */
1202 #ifdef AFS_LINUX22_ENV
1205 #if defined(AFS_FBSD80_ENV)
1206 if (VOP_ISLOCKED(vp))
1208 #endif /* AFS_FBSD80_ENV */
1209 AFS_RELE(vp); /* put vnode back */
1213 #if defined(KERNEL_HAVE_UERROR)
1216 return (getuerror());
1222 #ifdef AFS_DARWIN100_ENV
1224 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1225 int follow, afs_ucred_t *credp)
1227 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1228 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1233 #define MAXPIOCTLTOKENLEN \
1234 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1237 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1238 register struct afs_ioctl *ablob, int afollow,
1239 afs_ucred_t **acred)
1242 struct vrequest treq;
1243 register afs_int32 code;
1244 register afs_int32 function, device;
1245 struct afs_pdata input, output;
1246 struct afs_pdata copyInput, copyOutput;
1248 pioctlFunction *pioctlSw;
1250 struct afs_fakestat_state fakestate;
1252 memset(&input, 0, sizeof(input));
1253 memset(&output, 0, sizeof(output));
1255 avc = avp ? VTOAFS(avp) : NULL;
1256 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1257 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1258 AFS_STATCNT(HandlePioctl);
1260 code = afs_InitReq(&treq, *acred);
1264 afs_InitFakeStat(&fakestate);
1266 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1270 device = (acom & 0xff00) >> 8;
1272 case 'V': /* Original pioctls */
1273 pioctlSw = VpioctlSw;
1274 pioctlSwSize = sizeof(VpioctlSw);
1276 case 'C': /* Coordinated/common pioctls */
1277 pioctlSw = CpioctlSw;
1278 pioctlSwSize = sizeof(CpioctlSw);
1280 case 'O': /* Coordinated/common pioctls */
1281 pioctlSw = OpioctlSw;
1282 pioctlSwSize = sizeof(OpioctlSw);
1288 function = acom & 0xff;
1289 if (function >= (pioctlSwSize / sizeof(char *))) {
1294 /* Do all range checking before continuing */
1295 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1296 ablob->in_size < 0 || ablob->out_size < 0) {
1301 code = afs_pd_alloc(&input, ablob->in_size);
1305 if (ablob->in_size > 0) {
1306 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1307 input.ptr[input.remaining] = '\0';
1312 if (function == 8 && device == 'V') { /* PGetTokens */
1313 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1315 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1321 copyOutput = output;
1324 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1325 ©Output, acred);
1327 outSize = copyOutput.ptr - output.ptr;
1329 if (code == 0 && ablob->out_size > 0) {
1330 if (outSize > ablob->out_size) {
1331 code = E2BIG; /* data wont fit in user buffer */
1332 } else if (outSize) {
1333 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1338 afs_pd_free(&input);
1339 afs_pd_free(&output);
1341 afs_PutFakeStat(&fakestate);
1342 return afs_CheckCode(code, &treq, 41);
1346 * VIOCGETFID (22) - Get file ID quickly
1350 * \param[in] ain not in use
1351 * \param[out] aout fid of requested file
1353 * \retval EINVAL Error if some of the initial arguments aren't set
1355 * \post get the file id of some file
1357 DECL_PIOCTL(PGetFID)
1359 AFS_STATCNT(PGetFID);
1362 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1368 * VIOCSETAL (1) - Set access control list
1372 * \param[in] ain the ACL being set
1373 * \param[out] aout the ACL being set returned
1375 * \retval EINVAL Error if some of the standard args aren't set
1377 * \post Changed ACL, via direct writing to the wire
1379 int dummy_PSetAcl(char *ain, char *aout)
1384 DECL_PIOCTL(PSetAcl)
1386 register afs_int32 code;
1387 struct afs_conn *tconn;
1388 struct AFSOpaque acl;
1389 struct AFSVolSync tsync;
1390 struct AFSFetchStatus OutStatus;
1393 AFS_STATCNT(PSetAcl);
1397 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1399 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1400 if (acl.AFSOpaque_len > 1024)
1404 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
1406 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1409 RXAFS_StoreACL(tconn->id, (struct AFSFid *)&avc->f.fid.Fid,
1410 &acl, &OutStatus, &tsync);
1415 } while (afs_Analyze
1416 (tconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1417 SHARED_LOCK, NULL));
1419 /* now we've forgotten all of the access info */
1420 ObtainWriteLock(&afs_xcbhash, 455);
1422 afs_DequeueCallback(avc);
1423 avc->f.states &= ~(CStatd | CUnique);
1424 ReleaseWriteLock(&afs_xcbhash);
1425 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1426 osi_dnlc_purgedp(avc);
1428 /* SXW - Should we flush metadata here? */
1432 int afs_defaultAsynchrony = 0;
1435 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1439 * \param[in] ain sbstruct (store behind structure) input
1440 * \param[out] aout resulting sbstruct
1443 * Error if the user doesn't have super-user credentials
1445 * Error if there isn't enough access to not check the mode bits
1448 * Changes either the default asynchrony (the amount of data that
1449 * can remain to be written when the cache manager returns control
1450 * to the user), or the asyncrony for the specified file.
1452 DECL_PIOCTL(PStoreBehind)
1454 struct sbstruct sbr;
1456 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1459 if (sbr.sb_default != -1) {
1460 if (afs_osi_suser(*acred))
1461 afs_defaultAsynchrony = sbr.sb_default;
1466 if (avc && (sbr.sb_thisfile != -1)) {
1468 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1469 avc->asynchrony = sbr.sb_thisfile;
1474 memset(&sbr, 0, sizeof(sbr));
1475 sbr.sb_default = afs_defaultAsynchrony;
1477 sbr.sb_thisfile = avc->asynchrony;
1480 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1484 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1488 * \param[in] ain not in use
1489 * \param[out] aout not in use
1491 * \retval EACCES Error if the user doesn't have super-user credentials
1493 * \post set the gcpags to GCPAGS_USERDISABLED
1495 DECL_PIOCTL(PGCPAGs)
1497 if (!afs_osi_suser(*acred)) {
1500 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1505 * VIOCGETAL (2) - Get access control list
1509 * \param[in] ain not in use
1510 * \param[out] aout the ACL
1512 * \retval EINVAL Error if some of the standard args aren't set
1513 * \retval ERANGE Error if the vnode of the file id is too large
1514 * \retval -1 Error if getting the ACL failed
1516 * \post Obtain the ACL, based on file ID
1519 * There is a hack to tell which type of ACL is being returned, checks
1520 * the top 2-bytes of the input size to judge what type of ACL it is,
1521 * only for dfs xlator ACLs
1523 DECL_PIOCTL(PGetAcl)
1525 struct AFSOpaque acl;
1526 struct AFSVolSync tsync;
1527 struct AFSFetchStatus OutStatus;
1529 struct afs_conn *tconn;
1533 AFS_STATCNT(PGetAcl);
1536 Fid.Volume = avc->f.fid.Fid.Volume;
1537 Fid.Vnode = avc->f.fid.Fid.Vnode;
1538 Fid.Unique = avc->f.fid.Fid.Unique;
1539 if (avc->f.states & CForeign) {
1541 * For a dfs xlator acl we have a special hack so that the
1542 * xlator will distinguish which type of acl will return. So
1543 * we currently use the top 2-bytes (vals 0-4) to tell which
1544 * type of acl to bring back. Horrible hack but this will
1545 * cause the least number of changes to code size and interfaces.
1547 if (Fid.Vnode & 0xc0000000)
1549 Fid.Vnode |= (ain->remaining << 30);
1551 acl.AFSOpaque_val = aout->ptr;
1553 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
1555 acl.AFSOpaque_val[0] = '\0';
1556 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1558 code = RXAFS_FetchACL(tconn->id, &Fid, &acl, &OutStatus, &tsync);
1563 } while (afs_Analyze
1564 (tconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1565 SHARED_LOCK, NULL));
1568 if (acl.AFSOpaque_len == 0)
1569 afs_pd_skip(aout, 1); /* leave the NULL */
1571 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1577 * PNoop returns success. Used for functions which are not implemented
1578 * or are no longer in use.
1582 * \retval Always returns success
1585 * Functions involved in this:
1586 * 17 (VIOCENGROUP) -- used to be enable group;
1587 * 18 (VIOCDISGROUP) -- used to be disable group;
1588 * 2 (?) -- get/set cache-bypass size threshold
1597 * PBogus returns fail. Used for functions which are not implemented or
1598 * are no longer in use.
1602 * \retval EINVAL Always returns this value
1605 * Functions involved in this:
1611 * 13 (VIOCGETTIME) -- used to be quick check time;
1612 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1613 * 16 (VIOCNOP) -- used to be testing code;
1614 * 19 (VIOCLISTGROUPS) -- used to be list group;
1615 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1616 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1617 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1618 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1619 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1620 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1621 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1622 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1623 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1624 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1625 * 68 (?) -- arla: fetch stats;
1629 AFS_STATCNT(PBogus);
1634 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1638 * \param[in] ain not in use (avc used to pass in file id)
1639 * \param[out] aout cell name
1641 * \retval EINVAL Error if some of the standard args aren't set
1642 * \retval ESRCH Error if the file isn't part of a cell
1644 * \post Get a cell based on a passed in file id
1646 DECL_PIOCTL(PGetFileCell)
1648 register struct cell *tcell;
1650 AFS_STATCNT(PGetFileCell);
1653 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1657 if (afs_pd_putString(aout, tcell->cellName) != 0)
1660 afs_PutCell(tcell, READ_LOCK);
1665 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1669 * \param[in] ain not in use
1670 * \param[out] aout cell name
1673 * Error if the afs daemon hasn't started yet
1675 * Error if the machine isn't part of a cell, for whatever reason
1677 * \post Get the primary cell that the machine is a part of.
1679 DECL_PIOCTL(PGetWSCell)
1681 struct cell *tcell = NULL;
1683 AFS_STATCNT(PGetWSCell);
1684 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1685 return EIO; /* Inappropriate ioctl for device */
1687 tcell = afs_GetPrimaryCell(READ_LOCK);
1688 if (!tcell) /* no primary cell? */
1691 if (afs_pd_putString(aout, tcell->cellName) != 0)
1693 afs_PutCell(tcell, READ_LOCK);
1698 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1702 * \param[in] ain not in use (user id found via areq)
1703 * \param[out] aout cell name
1706 * Error if the user id doesn't have a primary cell specified
1708 * \post Get the primary cell for a certain user, based on the user's uid
1710 DECL_PIOCTL(PGetUserCell)
1712 register afs_int32 i;
1713 register struct unixuser *tu;
1714 register struct cell *tcell;
1716 AFS_STATCNT(PGetUserCell);
1717 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1718 return EIO; /* Inappropriate ioctl for device */
1720 /* return the cell name of the primary cell for this user */
1721 i = UHash(areq->uid);
1722 ObtainWriteLock(&afs_xuser, 224);
1723 for (tu = afs_users[i]; tu; tu = tu->next) {
1724 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1726 ReleaseWriteLock(&afs_xuser);
1731 tcell = afs_GetCell(tu->cell, READ_LOCK);
1732 afs_PutUser(tu, WRITE_LOCK);
1736 if (afs_pd_putString(aout, tcell->cellName) != 0)
1738 afs_PutCell(tcell, READ_LOCK);
1741 ReleaseWriteLock(&afs_xuser);
1747 * VIOCSETTOK (3) - Set authentication tokens
1751 * \param[in] ain the krb tickets from which to set the afs tokens
1752 * \param[out] aout not in use
1755 * Error if the ticket is either too long or too short
1757 * Error if the AFS initState is below 101
1759 * Error if the cell for which the Token is being set can't be found
1762 * Set the Tokens for a specific cell name, unless there is none set,
1763 * then default to primary
1766 DECL_PIOCTL(PSetTokens)
1769 register struct unixuser *tu;
1770 struct ClearToken clear;
1771 register struct cell *tcell;
1775 struct vrequest treq;
1776 afs_int32 flag, set_parent_pag = 0;
1778 AFS_STATCNT(PSetTokens);
1779 if (!afs_resourceinit_flag) {
1783 if (afs_pd_getInt(ain, &stLen) != 0)
1786 stp = afs_pd_where(ain); /* remember where the ticket is */
1787 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1788 return EINVAL; /* malloc may fail */
1789 if (afs_pd_skip(ain, stLen) != 0)
1792 if (afs_pd_getInt(ain, &i) != 0)
1794 if (i != sizeof(struct ClearToken))
1797 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1800 if (clear.AuthHandle == -1)
1801 clear.AuthHandle = 999; /* more rxvab compat stuff */
1803 if (afs_pd_remaining(ain) != 0) {
1804 /* still stuff left? we've got primary flag and cell name.
1807 if (afs_pd_getInt(ain, &flag) != 0)
1810 /* some versions of gcc appear to need != 0 in order to get this
1812 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1817 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1820 /* rest is cell name, look it up */
1821 tcell = afs_GetCellByName(cellName, READ_LOCK);
1825 /* default to primary cell, primary id */
1826 flag = 1; /* primary id */
1827 tcell = afs_GetPrimaryCell(READ_LOCK);
1832 afs_PutCell(tcell, READ_LOCK);
1833 if (set_parent_pag) {
1835 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1836 # if defined(AFS_DARWIN_ENV)
1837 afs_proc_t *p = current_proc(); /* XXX */
1839 afs_proc_t *p = curproc; /* XXX */
1841 # ifndef AFS_DARWIN80_ENV
1842 uprintf("Process %d (%s) tried to change pags in PSetTokens\n",
1843 p->p_pid, p->p_comm);
1845 if (!setpag(p, acred, -1, &pag, 1)) {
1847 if (!setpag(acred, -1, &pag, 1)) {
1849 afs_InitReq(&treq, *acred);
1853 /* now we just set the tokens */
1854 tu = afs_GetUser(areq->uid, i, WRITE_LOCK); /* i has the cell # */
1855 tu->vid = clear.ViceId;
1856 if (tu->stp != NULL) {
1857 afs_osi_Free(tu->stp, tu->stLen);
1859 tu->stp = (char *)afs_osi_Alloc(stLen);
1860 if (tu->stp == NULL) {
1864 memcpy(tu->stp, stp, stLen);
1867 afs_stats_cmfullperf.authent.TicketUpdates++;
1868 afs_ComputePAGStats();
1869 #endif /* AFS_NOSTATS */
1870 tu->states |= UHasTokens;
1871 tu->states &= ~UTokensBad;
1872 afs_SetPrimary(tu, flag);
1873 tu->tokenTime = osi_Time();
1874 afs_ResetUserConns(tu);
1875 afs_PutUser(tu, WRITE_LOCK);
1891 * VIOCGETVOLSTAT (4) - Get volume status
1895 * \param[in] ain not in use
1896 * \param[out] aout status of the volume
1898 * \retval EINVAL Error if some of the standard args aren't set
1901 * The status of a volume (based on the FID of the volume), or an
1902 * offline message /motd
1904 DECL_PIOCTL(PGetVolumeStatus)
1907 char *offLineMsg = afs_osi_Alloc(256);
1908 char *motd = afs_osi_Alloc(256);
1909 register struct afs_conn *tc;
1910 register afs_int32 code = 0;
1911 struct AFSFetchVolumeStatus volstat;
1915 AFS_STATCNT(PGetVolumeStatus);
1922 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
1924 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1927 RXAFS_GetVolumeStatus(tc->id, avc->f.fid.Fid.Volume, &volstat,
1928 &Name, &offLineMsg, &motd);
1933 } while (afs_Analyze
1934 (tc, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
1935 SHARED_LOCK, NULL));
1939 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
1940 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
1942 if (afs_pd_putString(aout, volName) != 0)
1944 if (afs_pd_putString(aout, offLineMsg) != 0)
1946 if (afs_pd_putString(aout, motd) != 0)
1949 afs_osi_Free(offLineMsg, 256);
1950 afs_osi_Free(motd, 256);
1955 * VIOCSETVOLSTAT (5) - Set volume status
1960 * values to set the status at, offline message, message of the day,
1961 * volume name, minimum quota, maximum quota
1963 * status of a volume, offlines messages, minimum quota, maximumm quota
1966 * Error if some of the standard args aren't set
1968 * Error if the volume is read only, or a backup volume
1970 * Error if the volume can't be accessed
1972 * Error if the volume name, offline message, and motd are too big
1975 * Set the status of a volume, including any offline messages,
1976 * a minimum quota, and a maximum quota
1978 DECL_PIOCTL(PSetVolumeStatus)
1983 register struct afs_conn *tc;
1984 register afs_int32 code = 0;
1985 struct AFSFetchVolumeStatus volstat;
1986 struct AFSStoreVolumeStatus storeStat;
1987 register struct volume *tvp;
1990 AFS_STATCNT(PSetVolumeStatus);
1994 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
1996 if (tvp->states & (VRO | VBackup)) {
1997 afs_PutVolume(tvp, READ_LOCK);
2000 afs_PutVolume(tvp, READ_LOCK);
2005 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2008 if (afs_pd_getStringPtr(ain, &volName) != 0)
2010 if (strlen(volName) > 32)
2013 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2015 if (strlen(offLineMsg) > 256)
2018 if (afs_pd_getStringPtr(ain, &motd) != 0)
2020 if (strlen(motd) > 256)
2023 /* Done reading ... */
2026 if (volstat.MinQuota != -1) {
2027 storeStat.MinQuota = volstat.MinQuota;
2028 storeStat.Mask |= AFS_SETMINQUOTA;
2030 if (volstat.MaxQuota != -1) {
2031 storeStat.MaxQuota = volstat.MaxQuota;
2032 storeStat.Mask |= AFS_SETMAXQUOTA;
2035 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
2037 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2040 RXAFS_SetVolumeStatus(tc->id, avc->f.fid.Fid.Volume, &storeStat,
2041 volName, offLineMsg, motd);
2046 } while (afs_Analyze
2047 (tc, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2048 SHARED_LOCK, NULL));
2052 /* we are sending parms back to make compat. with prev system. should
2053 * change interface later to not ask for current status, just set new
2056 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2058 if (afs_pd_putString(aout, volName) != 0)
2060 if (afs_pd_putString(aout, offLineMsg) != 0)
2062 if (afs_pd_putString(aout, motd) != 0)
2069 * VIOCFLUSH (6) - Invalidate cache entry
2073 * \param[in] ain not in use
2074 * \param[out] aout not in use
2076 * \retval EINVAL Error if some of the standard args aren't set
2078 * \post Flush any information the cache manager has on an entry
2082 AFS_STATCNT(PFlush);
2085 #ifdef AFS_BOZONLOCK_ENV
2086 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2088 ObtainWriteLock(&avc->lock, 225);
2089 afs_ResetVCache(avc, *acred);
2090 ReleaseWriteLock(&avc->lock);
2091 #ifdef AFS_BOZONLOCK_ENV
2092 afs_BozonUnlock(&avc->pvnLock, avc);
2098 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2103 * the last component in a path, related to mountpoint that we're
2104 * looking for information about
2106 * volume, cell, link data
2108 * \retval EINVAL Error if some of the standard args aren't set
2109 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2110 * \retval EIO Error if the link data can't be accessed
2112 * \post Get the volume, and cell, as well as the link data for a mount point
2114 DECL_PIOCTL(PNewStatMount)
2116 register afs_int32 code;
2117 register struct vcache *tvc;
2118 register struct dcache *tdc;
2119 struct VenusFid tfid;
2122 struct sysname_info sysState;
2123 afs_size_t offset, len;
2125 AFS_STATCNT(PNewStatMount);
2129 if (afs_pd_getStringPtr(ain, &name) != 0)
2132 code = afs_VerifyVCache(avc, areq);
2135 if (vType(avc) != VDIR) {
2138 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2141 Check_AtSys(avc, name, &sysState, areq);
2142 ObtainReadLock(&tdc->lock);
2144 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2145 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2146 ReleaseReadLock(&tdc->lock);
2147 afs_PutDCache(tdc); /* we're done with the data */
2148 bufp = sysState.name;
2152 tfid.Cell = avc->f.fid.Cell;
2153 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2154 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2155 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2157 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2163 if (tvc->mvstat != 1) {
2168 ObtainWriteLock(&tvc->lock, 226);
2169 code = afs_HandleLink(tvc, areq);
2171 if (tvc->linkData) {
2172 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2175 /* we have the data */
2176 if (afs_pd_putString(aout, tvc->linkData) != 0)
2182 ReleaseWriteLock(&tvc->lock);
2185 if (sysState.allocked)
2186 osi_FreeLargeSpace(bufp);
2191 * VIOCGETTOK (8) - Get authentication tokens
2195 * \param[in] ain cellid to return tokens for
2196 * \param[out] aout token
2199 * Error if the afs daemon hasn't started yet
2201 * Error if the input parameter is out of the bounds of the available
2204 * Error if there aren't tokens for this cell
2207 * If the input paramater exists, get the token that corresponds to
2208 * the parameter value, if there is no token at this value, get the
2209 * token for the first cell
2211 * \notes "it's a weird interface (from comments in the code)"
2214 DECL_PIOCTL(PGetTokens)
2216 register struct cell *tcell;
2217 register afs_int32 i;
2218 register struct unixuser *tu;
2219 afs_int32 iterator = 0;
2223 AFS_STATCNT(PGetTokens);
2224 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2225 return EIO; /* Inappropriate ioctl for device */
2227 /* weird interface. If input parameter is present, it is an integer and
2228 * we're supposed to return the parm'th tokens for this unix uid.
2229 * If not present, we just return tokens for cell 1.
2230 * If counter out of bounds, return EDOM.
2231 * If no tokens for the particular cell, return ENOTCONN.
2232 * Also, if this mysterious parm is present, we return, along with the
2233 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2234 * at the end, in that order.
2236 newStyle = (afs_pd_remaining(ain) > 0);
2238 if (afs_pd_getInt(ain, &iterator) != 0)
2241 i = UHash(areq->uid);
2242 ObtainReadLock(&afs_xuser);
2243 for (tu = afs_users[i]; tu; tu = tu->next) {
2245 if (tu->uid == areq->uid && (tu->states & UHasTokens)) {
2246 if (iterator-- == 0)
2247 break; /* are we done yet? */
2250 if (tu->uid == areq->uid && afs_IsPrimaryCellNum(tu->cell))
2256 * No need to hold a read lock on each user entry
2260 ReleaseReadLock(&afs_xuser);
2265 if (((tu->states & UHasTokens) == 0)
2266 || (tu->ct.EndTimestamp < osi_Time())) {
2267 tu->states |= (UTokensBad | UNeedsReset);
2268 afs_PutUser(tu, READ_LOCK);
2271 iterator = tu->stLen; /* for compat, we try to return 56 byte tix if they fit */
2273 iterator = 56; /* # of bytes we're returning */
2275 if (afs_pd_putInt(aout, iterator) != 0)
2277 if (afs_pd_putBytes(aout, tu->stp, tu->stLen) != 0)
2279 if (tu->stLen < 56) {
2280 /* Tokens are always 56 bytes or larger */
2281 if (afs_pd_skip(aout, iterator - tu->stLen) != 0) {
2286 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2288 if (afs_pd_putBytes(aout, &tu->ct, sizeof(struct ClearToken)) != 0)
2292 /* put out primary id and cell name, too */
2293 iterator = (tu->states & UPrimary ? 1 : 0);
2294 if (afs_pd_putInt(aout, iterator) != 0)
2296 tcell = afs_GetCell(tu->cell, READ_LOCK);
2298 if (afs_pd_putString(aout, tcell->cellName) != 0)
2300 afs_PutCell(tcell, READ_LOCK);
2302 if (afs_pd_putString(aout, "") != 0)
2305 /* Got here, all is good */
2308 afs_PutUser(tu, READ_LOCK);
2313 * VIOCUNLOG (9) - Invalidate tokens
2317 * \param[in] ain not in use
2318 * \param[out] aout not in use
2320 * \retval EIO Error if the afs daemon hasn't been started yet
2322 * \post remove tokens from a user, specified by the user id
2324 * \notes sets the token's time to 0, which then causes it to be removed
2325 * \notes Unlog is the same as un-pag in OpenAFS
2329 register afs_int32 i;
2330 register struct unixuser *tu;
2332 AFS_STATCNT(PUnlog);
2333 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2334 return EIO; /* Inappropriate ioctl for device */
2336 i = UHash(areq->uid);
2337 ObtainWriteLock(&afs_xuser, 227);
2338 for (tu = afs_users[i]; tu; tu = tu->next) {
2339 if (tu->uid == areq->uid) {
2341 tu->states &= ~UHasTokens;
2342 /* security is not having to say you're sorry */
2343 memset(&tu->ct, 0, sizeof(struct ClearToken));
2345 ReleaseWriteLock(&afs_xuser);
2346 /* We have to drop the lock over the call to afs_ResetUserConns,
2347 * since it obtains the afs_xvcache lock. We could also keep
2348 * the lock, and modify ResetUserConns to take parm saying we
2349 * obtained the lock already, but that is overkill. By keeping
2350 * the "tu" pointer held over the released lock, we guarantee
2351 * that we won't lose our place, and that we'll pass over
2352 * every user conn that existed when we began this call.
2354 afs_ResetUserConns(tu);
2356 ObtainWriteLock(&afs_xuser, 228);
2358 /* set the expire times to 0, causes
2359 * afs_GCUserData to remove this entry
2361 tu->ct.EndTimestamp = 0;
2363 #endif /* UKERNEL */
2366 ReleaseWriteLock(&afs_xuser);
2371 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2375 * \param[in] ain host address to be set
2376 * \param[out] aout old host address
2379 * depending on whether or not a variable is set, either get the host
2380 * for the cache manager monitor, or set the old address and give it
2383 * \notes Errors turn off mariner
2385 DECL_PIOCTL(PMariner)
2387 afs_int32 newHostAddr;
2388 afs_int32 oldHostAddr;
2390 AFS_STATCNT(PMariner);
2392 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2395 oldHostAddr = 0xffffffff; /* disabled */
2397 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2400 if (newHostAddr == 0xffffffff) {
2401 /* disable mariner operations */
2403 } else if (newHostAddr) {
2405 afs_marinerHost = newHostAddr;
2408 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2415 * VIOCCKSERV (10) - Check that servers are up
2419 * \param[in] ain name of the cell
2420 * \param[out] aout current down server list
2422 * \retval EIO Error if the afs daemon hasn't started yet
2423 * \retval EACCES Error if the user doesn't have super-user credentials
2424 * \retval ENOENT Error if we are unable to obtain the cell
2427 * Either a fast check (where it doesn't contact servers) or a
2428 * local check (checks local cell only)
2430 DECL_PIOCTL(PCheckServers)
2433 register struct server *ts;
2435 char *cellName = NULL;
2437 struct chservinfo *pcheck;
2439 AFS_STATCNT(PCheckServers);
2441 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2442 return EIO; /* Inappropriate ioctl for device */
2444 /* This is tricky, because we need to peak at the datastream to see
2445 * what we're getting. For now, let's cheat. */
2447 /* ain contains either an int32 or a string */
2448 if (ain->remaining == 0)
2451 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2452 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2456 if (pcheck->tinterval >= 0) {
2457 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2459 if (pcheck->tinterval > 0) {
2460 if (!afs_osi_suser(*acred))
2462 afs_probe_interval = pcheck->tinterval;
2466 temp = pcheck->tflags;
2468 cellName = pcheck->tbuffer;
2469 } else { /* For pre afs3.3 versions */
2470 if (afs_pd_getInt(ain, &temp) != 0)
2472 if (afs_pd_remaining(ain) > 0) {
2473 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2479 * 1: fast check, don't contact servers.
2480 * 2: local cell only.
2483 /* have cell name, too */
2484 cellp = afs_GetCellByName(cellName, READ_LOCK);
2489 if (!cellp && (temp & 2)) {
2490 /* use local cell */
2491 cellp = afs_GetPrimaryCell(READ_LOCK);
2493 if (!(temp & 1)) { /* if not fast, call server checker routine */
2494 afs_CheckServers(1, cellp); /* check down servers */
2495 afs_CheckServers(0, cellp); /* check up servers */
2497 /* now return the current down server list */
2498 ObtainReadLock(&afs_xserver);
2499 for (i = 0; i < NSERVERS; i++) {
2500 for (ts = afs_servers[i]; ts; ts = ts->next) {
2501 if (cellp && ts->cell != cellp)
2502 continue; /* cell spec'd and wrong */
2503 if ((ts->flags & SRVR_ISDOWN)
2504 && ts->addr->sa_portal != ts->cell->vlport) {
2505 afs_pd_putInt(aout, ts->addr->sa_ip);
2509 ReleaseReadLock(&afs_xserver);
2511 afs_PutCell(cellp, READ_LOCK);
2516 * VIOCCKBACK (11) - Check backup volume mappings
2520 * \param[in] ain not in use
2521 * \param[out] aout not in use
2523 * \retval EIO Error if the afs daemon hasn't started yet
2526 * Check the root volume, and then check the names if the volume
2527 * check variable is set to force, has expired, is busy, or if
2528 * the mount points variable is set
2530 DECL_PIOCTL(PCheckVolNames)
2532 AFS_STATCNT(PCheckVolNames);
2533 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2534 return EIO; /* Inappropriate ioctl for device */
2536 afs_CheckRootVolume();
2537 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2538 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2543 * VIOCCKCONN (12) - Check connections for a user
2547 * \param[in] ain not in use
2548 * \param[out] aout not in use
2551 * Error if no user is specififed, the user has no tokens set,
2552 * or if the user's tokens are bad
2555 * check to see if a user has the correct authentication.
2556 * If so, allow access.
2558 * \notes Check the connections to all the servers specified
2560 DECL_PIOCTL(PCheckAuth)
2564 struct afs_conn *tc;
2565 struct unixuser *tu;
2568 AFS_STATCNT(PCheckAuth);
2569 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2570 return EIO; /* Inappropriate ioctl for device */
2573 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2577 /* we have a user */
2578 ObtainReadLock(&afs_xsrvAddr);
2579 ObtainReadLock(&afs_xconn);
2581 /* any tokens set? */
2582 if ((tu->states & UHasTokens) == 0)
2584 /* all connections in cell 1 working? */
2585 for (i = 0; i < NSERVERS; i++) {
2586 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2587 for (tc = sa->conns; tc; tc = tc->next) {
2588 if (tc->user == tu && (tu->states & UTokensBad))
2593 ReleaseReadLock(&afs_xsrvAddr);
2594 ReleaseReadLock(&afs_xconn);
2595 afs_PutUser(tu, READ_LOCK);
2597 if (afs_pd_putInt(aout, retValue) != 0)
2603 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2607 register afs_int32 code;
2608 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2614 AFS_STATCNT(Prefetch);
2617 tp = osi_AllocLargeSpace(1024);
2618 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2620 osi_FreeLargeSpace(tp);
2623 if (afs_BBusy()) { /* do this as late as possible */
2624 osi_FreeLargeSpace(tp);
2625 return EWOULDBLOCK; /* pretty close */
2627 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2628 (afs_size_t) 0, tp);
2633 * VIOCWHEREIS (14) - Find out where a volume is located
2637 * \param[in] ain not in use
2638 * \param[out] aout volume location
2640 * \retval EINVAL Error if some of the default arguments don't exist
2641 * \retval ENODEV Error if there is no such volume
2643 * \post fine a volume, based on a volume file id
2645 * \notes check each of the servers specified
2647 DECL_PIOCTL(PFindVolume)
2649 register struct volume *tvp;
2650 register struct server *ts;
2651 register afs_int32 i;
2654 AFS_STATCNT(PFindVolume);
2657 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2661 for (i = 0; i < AFS_MAXHOSTS; i++) {
2662 ts = tvp->serverHost[i];
2665 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2670 if (i < AFS_MAXHOSTS) {
2671 /* still room for terminating NULL, add it on */
2672 if (afs_pd_putInt(aout, 0) != 0) {
2678 afs_PutVolume(tvp, READ_LOCK);
2683 * VIOCACCESS (20) - Access using PRS_FS bits
2687 * \param[in] ain PRS_FS bits
2688 * \param[out] aout not in use
2690 * \retval EINVAL Error if some of the initial arguments aren't set
2691 * \retval EACCES Error if access is denied
2693 * \post check to make sure access is allowed
2695 DECL_PIOCTL(PViceAccess)
2697 register afs_int32 code;
2700 AFS_STATCNT(PViceAccess);
2704 code = afs_VerifyVCache(avc, areq);
2708 if (afs_pd_getInt(ain, &temp) != 0)
2711 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2719 * VIOC_GETPAG (13) - Get PAG value
2723 * \param[in] ain not in use
2724 * \param[out] aout PAG value or NOPAG
2726 * \post get PAG value for the caller's cred
2728 DECL_PIOCTL(PGetPAG)
2732 pag = PagInCred(*acred);
2734 return afs_pd_putInt(aout, pag);
2737 DECL_PIOCTL(PPrecache)
2741 /*AFS_STATCNT(PPrecache);*/
2742 if (!afs_osi_suser(*acred))
2745 if (afs_pd_getInt(ain, &newValue) != 0)
2748 afs_preCache = newValue*1024;
2753 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2757 * \param[in] ain the size the venus cache should be set to
2758 * \param[out] aout not in use
2760 * \retval EACCES Error if the user doesn't have super-user credentials
2761 * \retval EROFS Error if the cache is set to be in memory
2764 * Set the cache size based on user input. If no size is given,
2765 * set it to the default OpenAFS cache size.
2768 * recompute the general cache parameters for every single block allocated
2770 DECL_PIOCTL(PSetCacheSize)
2775 AFS_STATCNT(PSetCacheSize);
2777 if (!afs_osi_suser(*acred))
2779 /* too many things are setup initially in mem cache version */
2780 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2782 if (afs_pd_getInt(ain, &newValue) != 0)
2785 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2787 if (newValue < afs_min_cache)
2788 afs_cacheBlocks = afs_min_cache;
2790 afs_cacheBlocks = newValue;
2792 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2793 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2794 afs_MaybeWakeupTruncateDaemon();
2795 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2796 afs_osi_Wait(1000, 0, 0);
2797 afs_MaybeWakeupTruncateDaemon();
2802 #define MAXGCSTATS 16
2804 * VIOCGETCACHEPARMS (40) - Get cache stats
2808 * \param[in] ain afs index flags
2809 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2811 * \post Get the cache blocks, and how many of the cache blocks there are
2813 DECL_PIOCTL(PGetCacheSize)
2815 afs_int32 results[MAXGCSTATS];
2817 register struct dcache * tdc;
2820 AFS_STATCNT(PGetCacheSize);
2822 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2823 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2824 } else if (afs_pd_remaining(ain) == 0) {
2830 memset(results, 0, sizeof(results));
2831 results[0] = afs_cacheBlocks;
2832 results[1] = afs_blocksUsed;
2833 results[2] = afs_cacheFiles;
2836 for (i = 0; i < afs_cacheFiles; i++) {
2837 if (afs_indexFlags[i] & IFFree) results[3]++;
2839 } else if (2 == flags){
2840 for (i = 0; i < afs_cacheFiles; i++) {
2841 if (afs_indexFlags[i] & IFFree) results[3]++;
2842 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2843 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2844 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2845 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2846 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2848 tdc = afs_indexTable[i];
2851 size = tdc->validPos;
2852 if ( 0 < size && size < (1<<12) ) results[10]++;
2853 else if (size < (1<<14) ) results[11]++;
2854 else if (size < (1<<16) ) results[12]++;
2855 else if (size < (1<<18) ) results[13]++;
2856 else if (size < (1<<20) ) results[14]++;
2857 else if (size >= (1<<20) ) results[15]++;
2861 return afs_pd_putBytes(aout, results, sizeof(results));
2865 * VIOCFLUSHCB (25) - Flush callback only
2869 * \param[in] ain not in use
2870 * \param[out] aout not in use
2872 * \retval EINVAL Error if some of the standard args aren't set
2873 * \retval 0 0 returned if the volume is set to read-only
2876 * Flushes callbacks, by setting the length of callbacks to one,
2877 * setting the next callback to be sent to the CB_DROPPED value,
2878 * and then dequeues everything else.
2880 DECL_PIOCTL(PRemoveCallBack)
2882 register struct afs_conn *tc;
2883 register afs_int32 code = 0;
2884 struct AFSCallBack CallBacks_Array[1];
2885 struct AFSCBFids theFids;
2886 struct AFSCBs theCBs;
2889 AFS_STATCNT(PRemoveCallBack);
2892 if (avc->f.states & CRO)
2893 return 0; /* read-only-ness can't change */
2894 ObtainWriteLock(&avc->lock, 229);
2895 theFids.AFSCBFids_len = 1;
2896 theCBs.AFSCBs_len = 1;
2897 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2898 theCBs.AFSCBs_val = CallBacks_Array;
2899 CallBacks_Array[0].CallBackType = CB_DROPPED;
2900 if (avc->callback) {
2902 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
2904 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
2906 code = RXAFS_GiveUpCallBacks(tc->id, &theFids, &theCBs);
2910 /* don't set code on failure since we wouldn't use it */
2911 } while (afs_Analyze
2912 (tc, code, &avc->f.fid, areq,
2913 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
2915 ObtainWriteLock(&afs_xcbhash, 457);
2916 afs_DequeueCallback(avc);
2918 avc->f.states &= ~(CStatd | CUnique);
2919 ReleaseWriteLock(&afs_xcbhash);
2920 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
2921 osi_dnlc_purgedp(avc);
2923 ReleaseWriteLock(&avc->lock);
2928 * VIOCNEWCELL (26) - Configure new cell
2933 * the name of the cell, the hosts that will be a part of the cell,
2934 * whether or not it's linked with another cell, the other cell it's
2935 * linked with, the file server port, and the volume server port
2939 * \retval EIO Error if the afs daemon hasn't started yet
2940 * \retval EACCES Error if the user doesn't have super-user cedentials
2941 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
2943 * \post creates a new cell
2945 DECL_PIOCTL(PNewCell)
2947 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
2948 char *newcell = NULL;
2949 char *linkedcell = NULL;
2951 afs_int32 linkedstate = 0;
2952 afs_int32 fsport = 0, vlport = 0;
2955 AFS_STATCNT(PNewCell);
2956 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2957 return EIO; /* Inappropriate ioctl for device */
2959 if (!afs_osi_suser(*acred))
2962 if (afs_pd_getInt(ain, &magic) != 0)
2964 if (magic != 0x12345678)
2967 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
2968 * server addresses while the 3.5 fs newcell command passes
2969 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
2972 * This whole logic is bogus, because it relies on the newer command
2973 * sending its 12th address as 0.
2975 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
2978 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
2979 if (newcell[0] != '\0') {
2982 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
2985 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
2986 if (afs_pd_getBytes(ain, &cellHosts,
2987 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
2989 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
2992 if (afs_pd_getInt(ain, &fsport) != 0)
2995 fsport = 0; /* Privileged ports not allowed */
2997 if (afs_pd_getInt(ain, &vlport) != 0)
3000 vlport = 0; /* Privileged ports not allowed */
3002 if (afs_pd_getInt(ain, &ls) != 0)
3005 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3009 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3011 linkedstate |= CLinkedCell;
3014 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3016 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3021 DECL_PIOCTL(PNewAlias)
3023 /* create a new cell alias */
3024 char *realName, *aliasName;
3026 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3027 return EIO; /* Inappropriate ioctl for device */
3029 if (!afs_osi_suser(*acred))
3032 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3034 if (afs_pd_getStringPtr(ain, &realName) != 0)
3037 return afs_NewCellAlias(aliasName, realName);
3041 * VIOCGETCELL (27) - Get cell info
3045 * \param[in] ain The cell index of a specific cell
3046 * \param[out] aout list of servers in the cell
3048 * \retval EIO Error if the afs daemon hasn't started yet
3049 * \retval EDOM Error if there is no cell asked about
3051 * \post Lists the cell's server names and and addresses
3053 DECL_PIOCTL(PListCells)
3055 afs_int32 whichCell;
3056 register struct cell *tcell = 0;
3057 register afs_int32 i;
3060 AFS_STATCNT(PListCells);
3061 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3062 return EIO; /* Inappropriate ioctl for device */
3064 if (afs_pd_getInt(ain, &whichCell) != 0)
3067 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3073 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3074 if (tcell->cellHosts[i] == 0)
3076 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3079 for (;i < AFS_MAXCELLHOSTS; i++) {
3080 if (afs_pd_putInt(aout, 0) != 0)
3083 if (afs_pd_putString(aout, tcell->cellName) != 0)
3088 afs_PutCell(tcell, READ_LOCK);
3092 DECL_PIOCTL(PListAliases)
3094 afs_int32 whichAlias;
3095 register struct cell_alias *tcalias = 0;
3098 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3099 return EIO; /* Inappropriate ioctl for device */
3101 if (afs_pd_getInt(ain, &whichAlias) != 0)
3104 tcalias = afs_GetCellAlias(whichAlias);
3105 if (tcalias == NULL)
3109 if (afs_pd_putString(aout, tcalias->alias) != 0)
3111 if (afs_pd_putString(aout, tcalias->cell) != 0)
3116 afs_PutCellAlias(tcalias);
3121 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3125 * \param[in] ain the name of the file in this dir to remove
3126 * \param[out] aout not in use
3129 * Error if some of the standard args aren't set
3131 * Error if the argument to remove is not a directory
3133 * Error if there is no cache to remove the mount point from or
3134 * if a vcache doesn't exist
3137 * Ensure that everything is OK before deleting the mountpoint.
3138 * If not, don't delete. Delete a mount point based on a file id.
3140 DECL_PIOCTL(PRemoveMount)
3142 register afs_int32 code;
3145 struct sysname_info sysState;
3146 afs_size_t offset, len;
3147 register struct afs_conn *tc;
3148 register struct dcache *tdc;
3149 register struct vcache *tvc;
3150 struct AFSFetchStatus OutDirStatus;
3151 struct VenusFid tfid;
3152 struct AFSVolSync tsync;
3155 /* "ain" is the name of the file in this dir to remove */
3157 AFS_STATCNT(PRemoveMount);
3160 if (afs_pd_getStringPtr(ain, &name) != 0)
3163 code = afs_VerifyVCache(avc, areq);
3166 if (vType(avc) != VDIR)
3169 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3172 Check_AtSys(avc, name, &sysState, areq);
3173 ObtainReadLock(&tdc->lock);
3175 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3176 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3177 ReleaseReadLock(&tdc->lock);
3178 bufp = sysState.name;
3183 tfid.Cell = avc->f.fid.Cell;
3184 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3185 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3186 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3188 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3195 if (tvc->mvstat != 1) {
3201 ObtainWriteLock(&tvc->lock, 230);
3202 code = afs_HandleLink(tvc, areq);
3204 if (tvc->linkData) {
3205 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3210 ReleaseWriteLock(&tvc->lock);
3211 osi_dnlc_purgedp(tvc);
3217 ObtainWriteLock(&avc->lock, 231);
3218 osi_dnlc_remove(avc, bufp, tvc);
3220 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
3222 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3225 RXAFS_RemoveFile(tc->id, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3226 &OutDirStatus, &tsync);
3231 } while (afs_Analyze
3232 (tc, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3233 SHARED_LOCK, NULL));
3238 ReleaseWriteLock(&avc->lock);
3242 /* we have the thing in the cache */
3243 ObtainWriteLock(&tdc->lock, 661);
3244 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3245 /* we can do it locally */
3246 code = afs_dir_Delete(tdc, bufp);
3248 ZapDCE(tdc); /* surprise error -- invalid value */
3252 ReleaseWriteLock(&tdc->lock);
3253 afs_PutDCache(tdc); /* drop ref count */
3255 avc->f.states &= ~CUnique; /* For the dfs xlator */
3256 ReleaseWriteLock(&avc->lock);
3259 if (sysState.allocked)
3260 osi_FreeLargeSpace(bufp);
3265 * VIOC_GETCELLSTATUS (35) - Get cell status info
3269 * \param[in] ain The cell you want status information on
3270 * \param[out] aout cell state (as a struct)
3272 * \retval EIO Error if the afs daemon hasn't started yet
3273 * \retval ENOENT Error if the cell doesn't exist
3275 * \post Returns the state of the cell as defined in a struct cell
3277 DECL_PIOCTL(PGetCellStatus)
3279 register struct cell *tcell;
3283 AFS_STATCNT(PGetCellStatus);
3284 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3285 return EIO; /* Inappropriate ioctl for device */
3287 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3290 tcell = afs_GetCellByName(cellName, READ_LOCK);
3293 temp = tcell->states;
3294 afs_PutCell(tcell, READ_LOCK);
3296 return afs_pd_putInt(aout, temp);
3300 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3305 * The cell you want to set information about, and the values you
3310 * \retval EIO Error if the afs daemon hasn't started yet
3311 * \retval EACCES Error if the user doesn't have super-user credentials
3314 * Set the state of the cell in a defined struct cell, based on
3315 * whether or not SetUID is allowed
3317 DECL_PIOCTL(PSetCellStatus)
3319 register struct cell *tcell;
3321 afs_int32 flags0, flags1;
3323 if (!afs_osi_suser(*acred))
3325 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3326 return EIO; /* Inappropriate ioctl for device */
3328 if (afs_pd_getInt(ain, &flags0) != 0)
3330 if (afs_pd_getInt(ain, &flags1) != 0)
3332 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3335 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3338 if (flags0 & CNoSUID)
3339 tcell->states |= CNoSUID;
3341 tcell->states &= ~CNoSUID;
3342 afs_PutCell(tcell, WRITE_LOCK);
3347 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3351 * \param[in] ain not in use (args in avc)
3352 * \param[out] aout not in use
3354 * \retval EINVAL Error if some of the standard args aren't set
3355 * \retval EIO Error if the afs daemon hasn't started yet
3358 * Flush all cached contents of a volume. Exactly what stays and what
3359 * goes depends on the platform.
3362 * Does not flush a file that a user has open and is using, because
3363 * it will be re-created on next write. Also purges the dnlc,
3364 * because things are screwed up.
3366 DECL_PIOCTL(PFlushVolumeData)
3368 register afs_int32 i;
3369 register struct dcache *tdc;
3370 register struct vcache *tvc;
3371 register struct volume *tv;
3372 afs_int32 cell, volume;
3373 struct afs_q *tq, *uq;
3374 #ifdef AFS_DARWIN80_ENV
3378 AFS_STATCNT(PFlushVolumeData);
3381 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3382 return EIO; /* Inappropriate ioctl for device */
3384 volume = avc->f.fid.Fid.Volume; /* who to zap */
3385 cell = avc->f.fid.Cell;
3388 * Clear stat'd flag from all vnodes from this volume; this will
3389 * invalidate all the vcaches associated with the volume.
3392 ObtainReadLock(&afs_xvcache);
3393 i = VCHashV(&avc->f.fid);
3394 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3397 if (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell) {
3398 if (tvc->f.states & CVInit) {
3399 ReleaseReadLock(&afs_xvcache);
3400 afs_osi_Sleep(&tvc->f.states);
3403 #ifdef AFS_DARWIN80_ENV
3404 if (tvc->f.states & CDeadVnode) {
3405 ReleaseReadLock(&afs_xvcache);
3406 afs_osi_Sleep(&tvc->f.states);
3410 #if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_HPUX_ENV) || defined(AFS_LINUX20_ENV)
3411 VN_HOLD(AFSTOV(tvc));
3412 #elif defined(AFS_DARWIN80_ENV)
3416 if (vnode_ref(vp)) {
3422 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
3425 VREFCOUNT_INC(tvc); /* AIX, apparently */
3427 ReleaseReadLock(&afs_xvcache);
3428 #ifdef AFS_BOZONLOCK_ENV
3429 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3431 ObtainWriteLock(&tvc->lock, 232);
3433 ObtainWriteLock(&afs_xcbhash, 458);
3434 afs_DequeueCallback(tvc);
3435 tvc->f.states &= ~(CStatd | CDirty);
3436 ReleaseWriteLock(&afs_xcbhash);
3437 if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
3438 osi_dnlc_purgedp(tvc);
3439 afs_TryToSmush(tvc, *acred, 1);
3440 ReleaseWriteLock(&tvc->lock);
3441 #ifdef AFS_BOZONLOCK_ENV
3442 afs_BozonUnlock(&tvc->pvnLock, tvc);
3444 #ifdef AFS_DARWIN80_ENV
3445 vnode_put(AFSTOV(tvc));
3447 ObtainReadLock(&afs_xvcache);
3449 /* our tvc ptr is still good until now */
3453 ReleaseReadLock(&afs_xvcache);
3456 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3457 for (i = 0; i < afs_cacheFiles; i++) {
3458 if (!(afs_indexFlags[i] & IFEverUsed))
3459 continue; /* never had any data */
3460 tdc = afs_GetDSlot(i, NULL);
3461 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3462 ReleaseReadLock(&tdc->tlock);
3463 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
3464 if (!(afs_indexFlags[i] & IFDataMod)) {
3465 /* if the file is modified, but has a ref cnt of only 1,
3466 * then someone probably has the file open and is writing
3467 * into it. Better to skip flushing such a file, it will be
3468 * brought back immediately on the next write anyway.
3470 * If we *must* flush, then this code has to be rearranged
3471 * to call afs_storeAllSegments() first */
3472 afs_FlushDCache(tdc);
3476 ReleaseReadLock(&tdc->tlock);
3478 afs_PutDCache(tdc); /* bumped by getdslot */
3480 ReleaseWriteLock(&afs_xdcache);
3482 ObtainReadLock(&afs_xvolume);
3483 for (i = 0; i < NVOLS; i++) {
3484 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3485 if (tv->volume == volume) {
3486 afs_ResetVolumeInfo(tv);
3491 ReleaseReadLock(&afs_xvolume);
3493 /* probably, a user is doing this, probably, because things are screwed up.
3494 * maybe it's the dnlc's fault? */
3501 * VIOCGETVCXSTATUS (41) - gets vnode x status
3506 * not in use (avc used)
3508 * vcxstat: the file id, the data version, any lock, the parent vnode,
3509 * the parent unique id, the trunc position, the callback, cbExpires,
3510 * what access is being made, what files are open,
3511 * any users executing/writing, the flock count, the states,
3515 * Error if some of the initial default arguments aren't set
3517 * Error if access to check the mode bits is denied
3520 * gets stats for the vnode, a struct listed in vcxstat
3522 DECL_PIOCTL(PGetVnodeXStatus)
3524 register afs_int32 code;
3525 struct vcxstat stat;
3528 /* AFS_STATCNT(PGetVnodeXStatus); */
3531 code = afs_VerifyVCache(avc, areq);
3534 if (vType(avc) == VDIR)
3535 mode = PRSFS_LOOKUP;
3538 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3541 memset(&stat, 0, sizeof(struct vcxstat));
3542 stat.fid = avc->f.fid;
3543 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3544 stat.lock = avc->lock;
3545 stat.parentVnode = avc->f.parent.vnode;
3546 stat.parentUnique = avc->f.parent.unique;
3547 hset(stat.flushDV, avc->flushDV);
3548 hset(stat.mapDV, avc->mapDV);
3549 stat.truncPos = avc->f.truncPos;
3550 { /* just grab the first two - won't break anything... */
3551 struct axscache *ac;
3553 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3554 stat.randomUid[i] = ac->uid;
3555 stat.randomAccess[i] = ac->axess;
3558 stat.callback = afs_data_pointer_to_int32(avc->callback);
3559 stat.cbExpires = avc->cbExpires;
3560 stat.anyAccess = avc->f.anyAccess;
3561 stat.opens = avc->opens;
3562 stat.execsOrWriters = avc->execsOrWriters;
3563 stat.flockCount = avc->flockCount;
3564 stat.mvstat = avc->mvstat;
3565 stat.states = avc->f.states;
3566 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3570 DECL_PIOCTL(PGetVnodeXStatus2)
3572 register afs_int32 code;
3573 struct vcxstat2 stat;
3578 code = afs_VerifyVCache(avc, areq);
3581 if (vType(avc) == VDIR)
3582 mode = PRSFS_LOOKUP;
3585 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3588 memset(&stat, 0, sizeof(struct vcxstat2));
3590 stat.cbExpires = avc->cbExpires;
3591 stat.anyAccess = avc->f.anyAccess;
3592 stat.mvstat = avc->mvstat;
3593 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3595 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3600 * VIOC_AFS_SYSNAME (38) - Change @sys value
3604 * \param[in] ain new value for @sys
3605 * \param[out] aout count, entry, list (debug values?)
3608 * Error if afsd isn't running, the new sysname is too large,
3609 * the new sysname causes issues (starts with a . or ..),
3610 * there is no PAG set in the credentials, or the user of a PAG
3613 * Error if the user doesn't have super-user credentials
3616 * Set the value of @sys if these things work: if the input isn't
3617 * too long or if input doesn't start with . or ..
3620 * We require root for local sysname changes, but not for remote
3621 * (since we don't really believe remote uids anyway)
3622 * outname[] shouldn't really be needed- this is left as an
3623 * exercise for the reader.
3625 DECL_PIOCTL(PSetSysName)
3627 char *inname = NULL;
3628 char outname[MAXSYSNAME];
3629 afs_int32 setsysname;
3631 register struct afs_exporter *exporter;
3632 register struct unixuser *au;
3633 register afs_int32 pag, error;
3634 int t, count, num = 0, allpags = 0;
3636 struct afs_pdata validate;
3638 AFS_STATCNT(PSetSysName);
3639 if (!afs_globalVFS) {
3640 /* Afsd is NOT running; disable it */
3641 #if defined(KERNEL_HAVE_UERROR)
3642 return (setuerror(EINVAL), EINVAL);
3647 if (afs_pd_getInt(ain, &setsysname) != 0)
3649 if (setsysname & 0x8000) {
3651 setsysname &= ~0x8000;
3656 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3659 for (count = 0; count < setsysname; count++) {
3660 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3663 if (t >= MAXSYSNAME || t <= 0)
3665 /* check for names that can shoot us in the foot */
3666 if (inname[0] == '.' && (inname[1] == 0
3667 || (inname[1] == '.' && inname[2] == 0)))
3670 /* args ok, so go back to the beginning of that section */
3672 if (afs_pd_getStringPtr(ain, &inname) != 0)
3676 if (afs_cr_gid(*acred) == RMTUSER_REQ ||
3677 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV) { /* Handles all exporters */
3678 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3681 pag = PagInCred(*acred);
3683 return EINVAL; /* Better than panicing */
3685 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3686 return EINVAL; /* Better than panicing */
3688 if (!(exporter = au->exporter)) {
3689 afs_PutUser(au, READ_LOCK);
3690 return EINVAL; /* Better than panicing */
3692 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3695 if (error == ENODEV)
3696 foundname = 0; /* sysname not set yet! */
3698 afs_PutUser(au, READ_LOCK);
3703 strcpy(outname, sysnamelist[0]);
3705 afs_PutUser(au, READ_LOCK);
3709 /* Not xlating, so local case */
3711 osi_Panic("PSetSysName: !afs_sysname\n");
3712 if (!setsysname) { /* user just wants the info */
3713 strcpy(outname, afs_sysname);
3714 foundname = afs_sysnamecount;
3715 sysnamelist = afs_sysnamelist;
3716 } else { /* Local guy; only root can change sysname */
3717 if (!afs_osi_suser(*acred))
3720 /* allpags makes no sense for local use */
3724 /* clear @sys entries from the dnlc, once afs_lookup can
3725 * do lookups of @sys entries and thinks it can trust them */
3726 /* privs ok, store the entry, ... */
3728 if (strlen(inname) >= MAXSYSNAME-1)
3730 strcpy(afs_sysname, inname);
3732 if (setsysname > 1) { /* ... or list */
3733 for (count = 1; count < setsysname; ++count) {
3734 if (!afs_sysnamelist[count])
3736 ("PSetSysName: no afs_sysnamelist entry to write\n");
3737 if (afs_pd_getString(ain, afs_sysnamelist[count],
3742 afs_sysnamecount = setsysname;
3747 if (afs_pd_putInt(aout, foundname) != 0)
3750 if (afs_pd_putString(aout, outname) != 0)
3752 for (count = 1; count < foundname; ++count) { /* ... or list. */
3753 if (!sysnamelist[count])
3755 ("PSetSysName: no afs_sysnamelist entry to read\n");
3756 t = strlen(sysnamelist[count]);
3757 if (t >= MAXSYSNAME)
3758 osi_Panic("PSetSysName: sysname entry garbled\n");
3759 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3767 /* sequential search through the list of touched cells is not a good
3768 * long-term solution here. For small n, though, it should be just
3769 * fine. Should consider special-casing the local cell for large n.
3770 * Likewise for PSetSPrefs.
3772 * s - number of ids in array l[] -- NOT index of last id
3773 * l - array of cell ids which have volumes that need to be sorted
3774 * vlonly - sort vl servers or file servers?
3777 ReSortCells_cb(struct cell *cell, void *arg)
3779 afs_int32 *p = (afs_int32 *) arg;
3780 afs_int32 *l = p + 1;
3783 for (i = 0; i < s; i++) {
3784 if (l[i] == cell->cellNum) {
3785 ObtainWriteLock(&cell->lock, 690);
3786 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3787 ReleaseWriteLock(&cell->lock);
3795 ReSortCells(int s, afs_int32 * l, int vlonly)
3803 p = (afs_int32 *) afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3805 memcpy(p + 1, l, s * sizeof(afs_int32));
3806 afs_TraverseCells(&ReSortCells_cb, p);
3807 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3811 ObtainReadLock(&afs_xvolume);
3812 for (i = 0; i < NVOLS; i++) {
3813 for (j = afs_volumes[i]; j; j = j->next) {
3814 for (k = 0; k < s; k++)
3815 if (j->cell == l[k]) {
3816 ObtainWriteLock(&j->lock, 233);
3817 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3818 ReleaseWriteLock(&j->lock);
3823 ReleaseReadLock(&afs_xvolume);
3827 static int debugsetsp = 0;
3829 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3832 int i, j, k, matches, touchedSize;
3833 struct server *srvr = NULL;
3834 afs_int32 touched[34];
3838 for (k = 0; k < num; sp++, k++) {
3840 printf("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3843 ObtainReadLock(&afs_xserver);
3845 i = SHash(sp->host.s_addr);
3846 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3847 if (sa->sa_ip == sp->host.s_addr) {
3849 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3850 || (sa->sa_portal == AFS_FSPORT);
3851 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3858 if (sa && matches) { /* found one! */
3860 printf("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3862 sa->sa_iprank = sp->rank + afs_randomMod15();
3863 afs_SortOneServer(sa->server);
3866 /* if we don't know yet what cell it's in, this is moot */
3867 for (j = touchedSize - 1;
3868 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
3869 /* is it in our list of touched cells ? */ ;
3870 if (j < 0) { /* no, it's not */
3871 touched[touchedSize++] = srvr->cell->cellNum;
3872 if (touchedSize >= 32) { /* watch for ovrflow */
3873 ReleaseReadLock(&afs_xserver);
3874 ReSortCells(touchedSize, touched, vlonly);
3876 ObtainReadLock(&afs_xserver);
3882 ReleaseReadLock(&afs_xserver);
3883 /* if we didn't find one, start to create one. */
3884 /* Note that it doesn't have a cell yet... */
3886 afs_uint32 temp = sp->host.s_addr;
3888 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
3889 WRITE_LOCK, (afsUUID *) 0, 0);
3890 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
3891 afs_PutServer(srvr, WRITE_LOCK);
3893 } /* for all cited preferences */
3895 ReSortCells(touchedSize, touched, vlonly);
3900 * VIOC_SETPREFS (46) - Set server ranks
3902 * \param[in] ain the sprefs value you want the sprefs to be set to
3903 * \param[out] aout not in use
3906 * Error if the afs daemon hasn't started yet
3908 * Error if the user doesn't have super-user credentials
3910 * Error if the struct setsprefs is too large or if it multiplied
3911 * by the number of servers is too large
3913 * \post set the sprefs using the afs_setsprefs() function
3915 DECL_PIOCTL(PSetSPrefs)
3917 struct setspref *ssp;
3921 AFS_STATCNT(PSetSPrefs);
3923 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3924 return EIO; /* Inappropriate ioctl for device */
3926 if (!afs_osi_suser(*acred))
3929 /* The I/O handling here is ghastly, as it relies on overrunning the ends
3930 * of arrays. But, i'm not quite brave enough to change it yet. */
3932 ainSize = ain->remaining;
3934 if (ainSize < sizeof(struct setspref))
3937 ssp = (struct setspref *)ainPtr;
3938 if (ainSize < (sizeof(struct setspref)
3939 + sizeof(struct spref) * ssp->num_servers-1))
3942 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
3943 (ssp->flags & DBservers));
3948 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
3950 * \param[in] ain the server preferences to be set
3951 * \param[out] aout not in use
3953 * \retval EIO Error if the afs daemon hasn't started yet
3954 * \retval EACCES Error if the user doesn't have super-user credentials
3956 * \post set the server preferences, calling a function
3958 * \notes this may only be performed by the local root user.
3960 DECL_PIOCTL(PSetSPrefs33)
3962 AFS_STATCNT(PSetSPrefs);
3963 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3964 return EIO; /* Inappropriate ioctl for device */
3967 if (!afs_osi_suser(*acred))
3970 afs_setsprefs((struct spref *)afs_pd_where(ain),
3971 afs_pd_remaining(ain) / sizeof(struct spref),
3977 * VIOC_GETSPREFS (43) - Get server ranks
3981 * \param[in] ain the server preferences to get
3982 * \param[out] aout the server preferences information
3984 * \retval EIO Error if the afs daemon hasn't started yet
3985 * \retval ENOENT Error if the sprefrequest is too large
3987 * \post Get the sprefs
3990 * in the hash table of server structs, all servers with the same
3991 * IP address; will be on the same overflow chain; This could be
3992 * sped slightly in some circumstances by having it cache the
3993 * immediately previous slot in the hash table and some
3994 * supporting information; Only reports file servers now.
3996 DECL_PIOCTL(PGetSPrefs)
3998 struct sprefrequest spin; /* input */
3999 struct sprefinfo *spout; /* output */
4000 struct spref *srvout; /* one output component */
4001 int i, j; /* counters for hash table traversal */
4002 struct server *srvr; /* one of CM's server structs */
4004 int vlonly; /* just return vlservers ? */
4007 AFS_STATCNT(PGetSPrefs);
4008 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4009 return EIO; /* Inappropriate ioctl for device */
4011 /* Work out from the size whether we've got a new, or old, style pioctl */
4012 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4013 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4018 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4020 vlonly = (spin.flags & DBservers);
4023 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4024 * quite brave enough to tackle it yet ...
4027 /* struct sprefinfo includes 1 server struct... that size gets added
4028 * in during the loop that follows.
4030 spout = afs_pd_inline(aout,
4031 sizeof(struct sprefinfo) - sizeof(struct spref));
4032 spout->next_offset = spin.offset;
4033 spout->num_servers = 0;
4034 srvout = spout->servers;
4036 ObtainReadLock(&afs_xserver);
4037 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4038 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4039 if (spin.offset > (unsigned short)i) {
4040 continue; /* catch up to where we left off */
4042 spout->next_offset++;
4045 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4046 || (sa->sa_portal == AFS_FSPORT);
4048 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4049 /* only report ranks for vl servers */
4053 /* Check we've actually got the space we're about to use */
4054 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4055 ReleaseReadLock(&afs_xserver); /* no more room! */
4059 srvout->host.s_addr = sa->sa_ip;
4060 srvout->rank = sa->sa_iprank;
4061 spout->num_servers++;
4065 ReleaseReadLock(&afs_xserver);
4067 spout->next_offset = 0; /* start over from the beginning next time */
4072 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4073 int afs_NFSRootOnly = 1;
4075 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4080 * an integer containing the desired exportee flags
4082 * an integer containing the current exporter flags
4084 * \retval ENODEV Error if the exporter doesn't exist
4085 * \retval EACCES Error if the user doesn't have super-user credentials
4088 * Changes the state of various values to reflect the change
4089 * of the export values between nfs and afs.
4091 * \notes Legacy code obtained from IBM.
4093 DECL_PIOCTL(PExportAfs)
4095 afs_int32 export, newint = 0;
4096 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4097 afs_int32 rempags = 0, pagcb = 0;
4098 register struct afs_exporter *exporter;
4100 AFS_STATCNT(PExportAfs);
4101 if (afs_pd_getInt(ain, &handleValue) != 0)
4103 type = handleValue >> 24;
4108 exporter = exporter_find(type);
4110 export = handleValue & 3;
4111 changestate = handleValue & 0xfff;
4112 smounts = (handleValue >> 2) & 3;
4113 pwsync = (handleValue >> 4) & 3;
4114 convmode = (handleValue >> 6) & 3;
4115 rempags = (handleValue >> 8) & 3;
4116 pagcb = (handleValue >> 10) & 3;
4118 changestate = (handleValue >> 16) & 0x1;
4119 convmode = (handleValue >> 16) & 0x2;
4120 pwsync = (handleValue >> 16) & 0x4;
4121 smounts = (handleValue >> 16) & 0x8;
4122 export = handleValue & 0xff;
4125 /* Failed finding desired exporter; */
4129 handleValue = exporter->exp_states;
4130 if (afs_pd_putInt(aout, handleValue) != 0)
4133 if (!afs_osi_suser(*acred))
4134 return EACCES; /* Only superuser can do this */
4138 exporter->exp_states |= EXP_EXPORTED;
4140 exporter->exp_states &= ~EXP_EXPORTED;
4144 exporter->exp_states |= EXP_UNIXMODE;
4146 exporter->exp_states &= ~EXP_UNIXMODE;
4150 exporter->exp_states |= EXP_PWSYNC;
4152 exporter->exp_states &= ~EXP_PWSYNC;
4156 afs_NFSRootOnly = 0;
4157 exporter->exp_states |= EXP_SUBMOUNTS;
4159 afs_NFSRootOnly = 1;
4160 exporter->exp_states &= ~EXP_SUBMOUNTS;
4165 exporter->exp_states |= EXP_CLIPAGS;
4167 exporter->exp_states &= ~EXP_CLIPAGS;
4171 exporter->exp_states |= EXP_CALLBACK;
4173 exporter->exp_states &= ~EXP_CALLBACK;
4175 handleValue = exporter->exp_states;
4176 if (afs_pd_putInt(aout, handleValue) != 0)
4180 exporter->exp_states |= EXP_EXPORTED;
4182 exporter->exp_states &= ~EXP_EXPORTED;
4184 exporter->exp_states |= EXP_UNIXMODE;
4186 exporter->exp_states &= ~EXP_UNIXMODE;
4188 exporter->exp_states |= EXP_PWSYNC;
4190 exporter->exp_states &= ~EXP_PWSYNC;
4192 afs_NFSRootOnly = 0;
4193 exporter->exp_states |= EXP_SUBMOUNTS;
4195 afs_NFSRootOnly = 1;
4196 exporter->exp_states &= ~EXP_SUBMOUNTS;
4205 * VIOC_GAG (44) - Silence Cache Manager
4209 * \param[in] ain the flags to either gag or de-gag the cache manager
4210 * \param[out] aout not in use
4212 * \retval EACCES Error if the user doesn't have super-user credentials
4214 * \post set the gag flags, then show these flags
4218 struct gaginfo *gagflags;
4220 if (!afs_osi_suser(*acred))
4223 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4224 if (gagflags == NULL)
4226 afs_showflags = gagflags->showflags;
4232 * VIOC_TWIDDLE (45) - Adjust RX knobs
4236 * \param[in] ain the previous settings of the 'knobs'
4237 * \param[out] aout not in use
4239 * \retval EACCES Error if the user doesn't have super-user credentials
4241 * \post build out the struct rxp, from a struct rx
4243 DECL_PIOCTL(PTwiddleRx)
4245 struct rxparams *rxp;
4247 if (!afs_osi_suser(*acred))
4250 rxp = afs_pd_inline(ain, sizeof(*rxp));
4254 if (rxp->rx_initReceiveWindow)
4255 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4256 if (rxp->rx_maxReceiveWindow)
4257 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4258 if (rxp->rx_initSendWindow)
4259 rx_initSendWindow = rxp->rx_initSendWindow;
4260 if (rxp->rx_maxSendWindow)
4261 rx_maxSendWindow = rxp->rx_maxSendWindow;
4262 if (rxp->rxi_nSendFrags)
4263 rxi_nSendFrags = rxp->rxi_nSendFrags;
4264 if (rxp->rxi_nRecvFrags)
4265 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4266 if (rxp->rxi_OrphanFragSize)
4267 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4268 if (rxp->rx_maxReceiveSize) {
4269 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4270 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4272 if (rxp->rx_MyMaxSendSize)
4273 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4279 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4283 * \param[in] ain not in use
4284 * \param[out] aout initial cache manager params
4287 * Error if the initial parameters are bigger than some PIGGYSIZE
4289 * \post return the initial cache manager parameters
4291 DECL_PIOCTL(PGetInitParams)
4293 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4296 return afs_pd_putBytes(aout, &cm_initParams,
4297 sizeof(struct cm_initparams));
4301 #ifdef AFS_SGI65_ENV
4302 /* They took crget() from us, so fake it. */
4307 cr = crdup(get_current_cred());
4308 memset(cr, 0, sizeof(cred_t));
4309 #if CELL || CELL_PREPARE
4317 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4321 * \param[in] ain not in use
4322 * \param[out] aout value of cryptall
4324 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4326 DECL_PIOCTL(PGetRxkcrypt)
4328 return afs_pd_putInt(aout, cryptall);
4332 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4336 * \param[in] ain the argument whether or not things should be encrypted
4337 * \param[out] aout not in use
4340 * Error if the user doesn't have super-user credentials
4342 * Error if the input is too big, or if the input is outside the
4343 * bounds of what it can be set to
4345 * \post set whether or not things should be encrypted
4348 * may need to be modified at a later date to take into account
4349 * other values for cryptall (beyond true or false)
4351 DECL_PIOCTL(PSetRxkcrypt)
4355 if (!afs_osi_suser(*acred))
4357 if (afs_pd_getInt(ain, &tmpval) != 0)
4359 /* if new mappings added later this will need to be changed */
4360 if (tmpval != 0 && tmpval != 1)
4366 #ifdef AFS_NEED_CLIENTCONTEXT
4368 * Create new credentials to correspond to a remote user with given
4369 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4370 * provide pioctl (and other) services to foreign clients (i.e. nfs
4371 * clients) by using this call to `become' the client.
4374 #define PIOCTL_HEADER 6
4376 HandleClientContext(struct afs_ioctl *ablob, int *com,
4377 afs_ucred_t **acred, afs_ucred_t *credp)
4380 afs_uint32 hostaddr;
4381 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4382 struct afs_exporter *exporter, *outexporter;
4383 afs_ucred_t *newcred;
4384 struct unixuser *au;
4385 afs_uint32 comp = *com & 0xff00;
4387 #if defined(AFS_SUN510_ENV)
4391 #if defined(AFS_SGIMP_ENV)
4392 osi_Assert(ISAFS_GLOCK());
4394 AFS_STATCNT(HandleClientContext);
4395 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4396 /* Must at least include the PIOCTL_HEADER header words
4397 * required by the protocol */
4398 return EINVAL; /* Too small to be good */
4400 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4401 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4403 osi_FreeLargeSpace(inData);
4407 /* Extract information for remote user */
4408 hostaddr = *((afs_uint32 *) ain);
4409 ain += sizeof(hostaddr);
4410 uid = *((afs_uint32 *) ain);
4412 g0 = *((afs_uint32 *) ain);
4414 g1 = *((afs_uint32 *) ain);
4416 *com = *((afs_uint32 *) ain);
4417 ain += sizeof(afs_int32);
4418 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4421 * Of course, one must be root for most of these functions, but
4422 * we'll allow (for knfs) you to set things if the pag is 0 and
4423 * you're setting tokens or unlogging.
4426 if (!afs_osi_suser(credp)) {
4427 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4428 /* Since SGI's suser() returns explicit failure after the call.. */
4431 /* check for acceptable opcodes for normal folks, which are, so far,
4432 * get/set tokens, sysname, and unlog.
4434 if (i != 9 && i != 3 && i != 38 && i != 8) {
4435 osi_FreeLargeSpace(inData);
4440 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4441 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4442 osi_FreeLargeSpace(inData);
4445 * We map uid 0 to nobody to match the mapping that the nfs
4446 * server does and to ensure that the suser() calls in the afs
4447 * code fails for remote client roots.
4449 uid = afs_nobody; /* NFS_NOBODY == -2 */
4453 #ifdef AFS_AIX41_ENV
4456 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4457 #ifdef AFS_AIX51_ENV
4458 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4459 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4460 #elif defined(AFS_LINUX26_ENV)
4461 # ifdef AFS_LINUX26_ONEGROUP_ENV
4462 set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4463 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4464 h = ((g0-0x3f00) >> 14);
4465 h = ((g1-0x3f00) >> 14) + h + h + h;
4466 GROUP_AT(cr_group_info(newcred), 0) = ((h << 28) | l);
4468 set_cr_group_info(newcred, groups_alloc(2));
4469 GROUP_AT(cr_group_info(newcred), 0) = g0;
4470 GROUP_AT(cr_group_info(newcred), 1) = g1;
4472 #elif defined(AFS_SUN510_ENV)
4475 crsetgroups(newcred, 2, gids);
4477 newcred->cr_groups[0] = g0;
4478 newcred->cr_groups[1] = g1;
4481 newcred->cr_ngrps = 2;
4482 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4483 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
4484 newcred->cr_ngroups = 2;
4486 for (i = 2; i < NGROUPS; i++)
4487 newcred->cr_groups[i] = NOGROUP;
4490 if (!(exporter = exporter_find(exporter_type))) {
4491 /* Exporter wasn't initialized or an invalid exporter type */
4495 if (exporter->exp_states & EXP_PWSYNC) {
4496 if (uid != afs_cr_uid(credp)) {
4498 return ENOEXEC; /* XXX Find a better errno XXX */
4501 afs_set_cr_uid(newcred, uid); /* Only temporary */
4502 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4503 /* The client's pag is the only unique identifier for it */
4504 afs_set_cr_uid(newcred, pag);
4506 if (!code && *com == PSETPAG) {
4507 /* Special case for 'setpag' */
4508 afs_uint32 pagvalue = genpag();
4510 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4512 * Note that we leave the 'outexporter' struct held so it won't
4515 au->exporter = outexporter;
4516 if (ablob->out_size >= 4) {
4517 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4520 afs_PutUser(au, WRITE_LOCK);
4523 return PSETPAG; /* Special return for setpag */
4525 EXP_RELE(outexporter);
4528 *com = (*com) | comp;
4531 #endif /* AFS_NEED_CLIENTCONTEXT */
4535 * VIOC_GETCPREFS (50) - Get client interface
4539 * \param[in] ain sprefrequest input
4540 * \param[out] aout spref information
4542 * \retval EIO Error if the afs daemon hasn't started yet
4543 * \retval EINVAL Error if some of the standard args aren't set
4546 * get all interface addresses and other information of the client
4549 DECL_PIOCTL(PGetCPrefs)
4551 struct sprefrequest *spin; /* input */
4552 struct sprefinfo *spout; /* output */
4553 struct spref *srvout; /* one output component */
4557 AFS_STATCNT(PGetCPrefs);
4558 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4559 return EIO; /* Inappropriate ioctl for device */
4561 spin = afs_pd_inline(ain, sizeof(*spin));
4565 /* Output spout relies on writing past the end of arrays. It's horrible,
4566 * but I'm not quite brave enough to tackle it yet */
4567 spout = (struct sprefinfo *)aout->ptr;
4569 maxNumber = spin->num_servers; /* max addrs this time */
4570 srvout = spout->servers;
4572 ObtainReadLock(&afs_xinterface);
4574 /* copy out the client interface information from the
4575 * kernel data structure "interface" to the output buffer
4577 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4578 && (j < maxNumber); i++, j++, srvout++)
4579 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4581 spout->num_servers = j;
4582 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4584 if (i >= afs_cb_interface.numberOfInterfaces)
4585 spout->next_offset = 0; /* start from beginning again */
4587 spout->next_offset = spin->offset + j;
4589 ReleaseReadLock(&afs_xinterface);
4594 * VIOC_SETCPREFS (51) - Set client interface
4598 * \param[in] ain the interfaces you want set
4599 * \param[out] aout not in use
4601 * \retval EIO Error if the afs daemon hasn't started yet
4602 * \retval EINVAL Error if the input is too large for the struct
4603 * \retval ENOMEM Error if there are too many servers
4605 * \post set the callbak interfaces addresses to those of the hosts
4607 DECL_PIOCTL(PSetCPrefs)
4611 struct setspref *sin;
4614 AFS_STATCNT(PSetCPrefs);
4615 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4616 return EIO; /* Inappropriate ioctl for device */
4618 /* Yuck. Input to this function relies on reading past the end of
4619 * structures. Bodge it for now.
4622 ainSize = ain->remaining;
4624 sin = (struct setspref *)ainPtr;
4626 if (ainSize < sizeof(struct setspref))
4628 #if 0 /* num_servers is unsigned */
4629 if (sin->num_servers < 0)
4632 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4635 ObtainWriteLock(&afs_xinterface, 412);
4636 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4637 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4638 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4640 ReleaseWriteLock(&afs_xinterface);
4645 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4650 * the last part of a path to a mount point, which tells us what to flush
4655 * Error if some of the initial arguments aren't set
4657 * Error if the initial argument for the mount point isn't a directory
4659 * Error if the dcache entry isn't set
4662 * remove all of the mount data from the dcache regarding a
4663 * certain mount point
4665 DECL_PIOCTL(PFlushMount)
4667 register afs_int32 code;
4668 register struct vcache *tvc;
4669 register struct dcache *tdc;
4670 struct VenusFid tfid;
4673 struct sysname_info sysState;
4674 afs_size_t offset, len;
4676 AFS_STATCNT(PFlushMount);
4680 if (afs_pd_getStringPtr(ain, &mount) != 0)
4683 code = afs_VerifyVCache(avc, areq);
4686 if (vType(avc) != VDIR) {
4689 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4692 Check_AtSys(avc, mount, &sysState, areq);
4693 ObtainReadLock(&tdc->lock);
4695 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4696 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4697 ReleaseReadLock(&tdc->lock);
4698 afs_PutDCache(tdc); /* we're done with the data */
4699 bufp = sysState.name;
4703 tfid.Cell = avc->f.fid.Cell;
4704 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4705 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4706 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4708 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4714 if (tvc->mvstat != 1) {
4719 #ifdef AFS_BOZONLOCK_ENV
4720 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4722 ObtainWriteLock(&tvc->lock, 649);
4723 ObtainWriteLock(&afs_xcbhash, 650);
4724 afs_DequeueCallback(tvc);
4725 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4726 ReleaseWriteLock(&afs_xcbhash);
4727 /* now find the disk cache entries */
4728 afs_TryToSmush(tvc, *acred, 1);
4729 osi_dnlc_purgedp(tvc);
4730 if (tvc->linkData && !(tvc->f.states & CCore)) {
4731 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4732 tvc->linkData = NULL;
4734 ReleaseWriteLock(&tvc->lock);
4735 #ifdef AFS_BOZONLOCK_ENV
4736 afs_BozonUnlock(&tvc->pvnLock, tvc);
4740 if (sysState.allocked)
4741 osi_FreeLargeSpace(bufp);
4746 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4750 * \param[in] ain the flags that control which stats to use
4751 * \param[out] aout not in use
4753 * \retval EACCES Error if the user doesn't have super-user credentials
4754 * \retval EINVAL Error if the flag input is too long
4757 * either enable process RPCStats, disable process RPCStats,
4758 * or clear the process RPCStats
4760 DECL_PIOCTL(PRxStatProc)
4764 if (!afs_osi_suser(*acred))
4767 if (afs_pd_getInt(ain, &flags) != 0)
4770 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4773 if (flags & AFSCALL_RXSTATS_ENABLE) {
4774 rx_enableProcessRPCStats();
4776 if (flags & AFSCALL_RXSTATS_DISABLE) {
4777 rx_disableProcessRPCStats();
4779 if (flags & AFSCALL_RXSTATS_CLEAR) {
4780 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4787 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4791 * \param[in] ain the flags that control which statistics to use
4792 * \param[out] aout not in use
4794 * \retval EACCES Error if the user doesn't have super-user credentials
4795 * \retval EINVAL Error if the flag input is too long
4798 * either enable peer RPCStatws, disable peer RPCStats,
4799 * or clear the peer RPCStats
4801 DECL_PIOCTL(PRxStatPeer)
4805 if (!afs_osi_suser(*acred))
4808 if (afs_pd_getInt(ain, &flags) != 0)
4811 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4814 if (flags & AFSCALL_RXSTATS_ENABLE) {
4815 rx_enablePeerRPCStats();
4817 if (flags & AFSCALL_RXSTATS_DISABLE) {
4818 rx_disablePeerRPCStats();
4820 if (flags & AFSCALL_RXSTATS_CLEAR) {
4821 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4826 DECL_PIOCTL(PPrefetchFromTape)
4828 register afs_int32 code, code1;
4829 afs_int32 bytes, outval;
4830 struct afs_conn *tc;
4831 struct rx_call *tcall;
4832 struct AFSVolSync tsync;
4833 struct AFSFetchStatus OutStatus;
4834 struct AFSCallBack CallBack;
4835 struct VenusFid tfid;
4839 AFS_STATCNT(PSetAcl);
4843 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4845 Fid = &avc->f.fid.Fid;
4847 tfid.Cell = avc->f.fid.Cell;
4848 tfid.Fid.Volume = Fid->Volume;
4849 tfid.Fid.Vnode = Fid->Vnode;
4850 tfid.Fid.Unique = Fid->Unique;
4852 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4854 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4855 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4858 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4859 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4862 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK);
4866 tcall = rx_NewCall(tc->id);
4868 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4871 bytes = rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
4873 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
4875 code1 = rx_EndCall(tcall, code);
4879 } while (afs_Analyze
4880 (tc, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
4881 SHARED_LOCK, NULL));
4882 /* This call is done only to have the callback things handled correctly */
4883 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
4889 return afs_pd_putInt(aout, outval);
4894 register afs_int32 code;
4895 struct afs_conn *tc;
4897 struct FsCmdInputs *Inputs;
4898 struct FsCmdOutputs *Outputs;
4899 struct VenusFid tfid;
4905 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
4909 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
4910 if (Outputs == NULL)
4915 Fid = &avc->f.fid.Fid;
4917 tfid.Cell = avc->f.fid.Cell;
4918 tfid.Fid.Volume = Fid->Volume;
4919 tfid.Fid.Vnode = Fid->Vnode;
4920 tfid.Fid.Unique = Fid->Unique;
4922 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4923 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
4924 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
4928 if (Inputs->command) {
4930 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK);
4934 RXAFS_FsCmd(tc->id, Fid, Inputs,
4935 (struct FsCmdOutputs *)aout);
4939 } while (afs_Analyze
4940 (tc, code, &tvc->f.fid, areq,
4941 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
4942 /* This call is done to have the callback things handled correctly */
4943 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
4944 } else { /* just a status request, return also link data */
4946 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
4947 Outputs->chars[0] = 0;
4948 if (vType(tvc) == VLNK) {
4949 ObtainWriteLock(&tvc->lock, 555);
4950 if (afs_HandleLink(tvc, areq) == 0)
4951 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
4952 ReleaseWriteLock(&tvc->lock);
4961 DECL_PIOCTL(PNewUuid)
4963 /*AFS_STATCNT(PNewUuid); */
4964 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
4965 return EIO; /* Inappropriate ioctl for device */
4967 if (!afs_osi_suser(*acred))
4970 ObtainWriteLock(&afs_xinterface, 555);
4971 afs_uuid_create(&afs_cb_interface.uuid);
4972 ReleaseWriteLock(&afs_xinterface);
4973 ForceAllNewConnections();
4977 #if defined(AFS_CACHE_BYPASS)
4979 DECL_PIOCTL(PSetCachingThreshold)
4981 afs_int32 getting = 1;
4982 afs_int32 setting = 1;
4983 afs_int32 threshold;
4985 if (afs_pd_getInt(ain, &threshold) != 0)
4991 if (setting == 0 && getting == 0)
4995 * If setting, set first, and return the value now in effect
4998 if (!afs_osi_suser(*acred))
5000 cache_bypass_threshold = threshold;
5001 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5002 /* TODO: move to separate pioctl, or enhance pioctl */
5003 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5006 /* Return the current size threshold */
5008 return afs_pd_putInt32(aout, cache_bypass_threshold);
5013 #endif /* defined(AFS_CACHE_BYPASS) */
5015 DECL_PIOCTL(PCallBackAddr)
5018 afs_uint32 addr, code;
5022 struct afs_conn *tc;
5024 struct unixuser *tu;
5025 struct srvAddr **addrs;
5027 /*AFS_STATCNT(PCallBackAddr); */
5028 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5029 return EIO; /* Inappropriate ioctl for device */
5031 if (!afs_osi_suser(acred))
5034 if (afs_pd_getInt(ain, &addr) != 0)
5037 ObtainReadLock(&afs_xinterface);
5038 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5039 if (afs_cb_interface.addr_in[i] == addr)
5043 ReleaseWriteLock(&afs_xinterface);
5045 if (afs_cb_interface.addr_in[i] != addr)
5048 ObtainReadLock(&afs_xserver); /* Necessary? */
5049 ObtainReadLock(&afs_xsrvAddr);
5052 for (i = 0; i < NSERVERS; i++) {
5053 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5058 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5060 for (i = 0; i < NSERVERS; i++) {
5061 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5062 if (j >= srvAddrCount)
5068 ReleaseReadLock(&afs_xsrvAddr);
5069 ReleaseReadLock(&afs_xserver);
5071 for (i = 0; i < j; i++) {
5077 /* vlserver has no callback conn */
5078 if (sa->sa_portal == AFS_VLPORT) {
5082 if (!ts->cell) /* not really an active server, anyway, it must */
5083 continue; /* have just been added by setsprefs */
5085 /* get a connection, even if host is down; bumps conn ref count */
5086 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5087 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5088 1 /*force */ , 1 /*create */ , SHARED_LOCK);
5089 afs_PutUser(tu, SHARED_LOCK);
5093 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5094 if (sa->sa_flags & SRVADDR_ISDOWN) {
5095 rx_SetConnDeadTime(tc->id, 3);
5097 #ifdef RX_ENABLE_LOCKS
5099 #endif /* RX_ENABLE_LOCKS */
5100 code = RXAFS_CallBackRxConnAddr(tc->id, &addr);
5101 #ifdef RX_ENABLE_LOCKS
5103 #endif /* RX_ENABLE_LOCKS */
5105 afs_PutConn(tc, SHARED_LOCK); /* done with it now */
5106 } /* Outer loop over addrs */
5107 #endif /* UKERNEL */
5111 DECL_PIOCTL(PDiscon)
5113 #ifdef AFS_DISCON_ENV
5114 static afs_int32 mode = 1; /* Start up in 'off' */
5115 afs_int32 force = 0;
5119 if (afs_pd_getBytes(ain, &flags, 3) == 0) {
5120 if (!afs_osi_suser(*acred))
5124 mode = flags[0] - 1;
5126 afs_ConflictPolicy = flags[1] - 1;
5131 * All of these numbers are hard coded in fs.c. If they
5132 * change here, they should change there and vice versa
5135 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5136 if (!AFS_IS_DISCONNECTED) {
5137 ObtainWriteLock(&afs_discon_lock, 999);
5138 afs_DisconGiveUpCallbacks();
5139 afs_RemoveAllConns();
5140 afs_is_disconnected = 1;
5141 afs_is_discon_rw = 1;
5142 ReleaseWriteLock(&afs_discon_lock);
5145 case 1: /* Fully connected, ("online" mode). */
5146 ObtainWriteLock(&afs_discon_lock, 998);
5149 afs_MarkAllServersUp();
5150 code = afs_ResyncDisconFiles(areq, *acred);
5153 if (code && !force) {
5154 printf("Files not synchronized properly, still in discon state. \n"
5155 "Please retry or use \"force\".\n");
5159 afs_DisconDiscardAll(*acred);
5161 afs_ClearAllStatdFlag();
5162 afs_is_disconnected = 0;
5163 afs_is_discon_rw = 0;
5164 printf("\nSync succeeded. You are back online.\n");
5167 ReleaseWriteLock(&afs_discon_lock);
5179 return afs_pd_putInt(aout, mode);
5185 DECL_PIOCTL(PNFSNukeCreds)
5188 register afs_int32 i;
5189 register struct unixuser *tu;
5191 AFS_STATCNT(PUnlog);
5192 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5193 return EIO; /* Inappropriate ioctl for device */
5195 if (afs_pd_getUint(ain, &addr) != 0)
5198 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5199 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5200 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5201 afs_PutUser(tu, SHARED_LOCK);
5204 afs_PutUser(tu, SHARED_LOCK);
5205 } else if (!afs_osi_suser(acred)) {
5209 ObtainWriteLock(&afs_xuser, 227);
5210 for (i = 0; i < NUSERS; i++) {
5211 for (tu = afs_users[i]; tu; tu = tu->next) {
5212 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5214 tu->states &= ~UHasTokens;
5215 /* security is not having to say you're sorry */
5216 memset(&tu->ct, 0, sizeof(struct ClearToken));
5218 ReleaseWriteLock(&afs_xuser);
5219 afs_ResetUserConns(tu);
5221 ObtainWriteLock(&afs_xuser, 228);
5223 /* set the expire times to 0, causes
5224 * afs_GCUserData to remove this entry
5226 tu->ct.EndTimestamp = 0;
5228 #endif /* UKERNEL */
5232 ReleaseWriteLock(&afs_xuser);