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)
55 if (size > AFS_LRALLOCSIZ)
56 apd->ptr = osi_Alloc(size + 1);
58 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
63 apd->remaining = size;
69 afs_pd_free(struct afs_pdata *apd)
74 if (apd->remaining > AFS_LRALLOCSIZ)
75 osi_Free(apd->ptr, apd->remaining + 1);
77 osi_FreeLargeSpace(apd->ptr);
84 afs_pd_where(struct afs_pdata *apd)
86 return apd ? apd->ptr : NULL;
90 afs_pd_remaining(struct afs_pdata *apd)
92 return apd ? apd->remaining : 0;
96 afs_pd_skip(struct afs_pdata *apd, size_t skip)
98 if (apd == NULL || apd->remaining < skip)
100 apd->remaining -= skip;
107 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
109 if (apd == NULL || apd->remaining < sizeof(afs_int32))
111 apd->remaining -= sizeof(afs_int32);
112 *val = *(afs_int32 *)apd->ptr;
113 apd->ptr += sizeof(afs_int32);
118 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
120 return afs_pd_getInt(apd, (afs_int32 *)val);
124 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
126 if (apd == NULL || apd->remaining < bytes)
128 apd->remaining -= bytes;
129 memcpy(dest, apd->ptr, bytes);
135 afs_pd_inline(struct afs_pdata *apd, size_t bytes)
139 if (apd == NULL || apd->remaining < bytes)
144 apd->remaining -= bytes;
151 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
155 if (apd == NULL || apd->remaining <= 0)
157 len = strlen(apd->ptr) + 1;
160 memcpy(str, apd->ptr, len);
162 apd->remaining -= len;
167 afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
171 if (apd == NULL || apd->remaining <= 0)
173 len = strlen(apd->ptr) + 1;
176 apd->remaining -= len;
181 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
183 if (apd == NULL || apd->remaining < sizeof(afs_int32))
185 *(afs_int32 *)apd->ptr = val;
186 apd->ptr += sizeof(afs_int32);
187 apd->remaining -= sizeof(afs_int32);
193 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
195 if (apd == NULL || apd->remaining < len)
197 memcpy(apd->ptr, bytes, len);
199 apd->remaining -= len;
204 afs_pd_putString(struct afs_pdata *apd, char *str) {
206 /* Add 1 so we copy the NULL too */
207 return afs_pd_putBytes(apd, str, strlen(str) +1);
211 * \defgroup pioctl Path IOCTL functions
213 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
216 * the AFS vcache structure in use by pioctl
220 * the AFS vrequest structure
222 * an afs_pdata block describing the data received from the caller
224 * an afs_pdata block describing a pre-allocated block for output
226 * UNIX credentials structure underlying the operation
229 #define DECL_PIOCTL(x) \
230 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
231 struct afs_pdata *ain, struct afs_pdata *aout, \
234 /* Prototypes for pioctl routines */
235 DECL_PIOCTL(PGetFID);
236 DECL_PIOCTL(PSetAcl);
237 DECL_PIOCTL(PStoreBehind);
238 DECL_PIOCTL(PGCPAGs);
239 DECL_PIOCTL(PGetAcl);
242 DECL_PIOCTL(PGetFileCell);
243 DECL_PIOCTL(PGetWSCell);
244 DECL_PIOCTL(PGetUserCell);
245 DECL_PIOCTL(PSetTokens);
246 DECL_PIOCTL(PGetVolumeStatus);
247 DECL_PIOCTL(PSetVolumeStatus);
249 DECL_PIOCTL(PNewStatMount);
250 DECL_PIOCTL(PGetTokens);
252 DECL_PIOCTL(PMariner);
253 DECL_PIOCTL(PCheckServers);
254 DECL_PIOCTL(PCheckVolNames);
255 DECL_PIOCTL(PCheckAuth);
256 DECL_PIOCTL(PFindVolume);
257 DECL_PIOCTL(PViceAccess);
258 DECL_PIOCTL(PSetCacheSize);
259 DECL_PIOCTL(PGetCacheSize);
260 DECL_PIOCTL(PRemoveCallBack);
261 DECL_PIOCTL(PNewCell);
262 DECL_PIOCTL(PNewAlias);
263 DECL_PIOCTL(PListCells);
264 DECL_PIOCTL(PListAliases);
265 DECL_PIOCTL(PRemoveMount);
266 DECL_PIOCTL(PGetCellStatus);
267 DECL_PIOCTL(PSetCellStatus);
268 DECL_PIOCTL(PFlushVolumeData);
269 DECL_PIOCTL(PGetVnodeXStatus);
270 DECL_PIOCTL(PGetVnodeXStatus2);
271 DECL_PIOCTL(PSetSysName);
272 DECL_PIOCTL(PSetSPrefs);
273 DECL_PIOCTL(PSetSPrefs33);
274 DECL_PIOCTL(PGetSPrefs);
275 DECL_PIOCTL(PExportAfs);
277 DECL_PIOCTL(PTwiddleRx);
278 DECL_PIOCTL(PGetInitParams);
279 DECL_PIOCTL(PGetRxkcrypt);
280 DECL_PIOCTL(PSetRxkcrypt);
281 DECL_PIOCTL(PGetCPrefs);
282 DECL_PIOCTL(PSetCPrefs);
283 DECL_PIOCTL(PFlushMount);
284 DECL_PIOCTL(PRxStatProc);
285 DECL_PIOCTL(PRxStatPeer);
286 DECL_PIOCTL(PPrefetchFromTape);
288 DECL_PIOCTL(PCallBackAddr);
289 DECL_PIOCTL(PDiscon);
290 DECL_PIOCTL(PNFSNukeCreds);
291 DECL_PIOCTL(PNewUuid);
292 DECL_PIOCTL(PPrecache);
293 DECL_PIOCTL(PGetPAG);
294 #if defined(AFS_CACHE_BYPASS)
295 DECL_PIOCTL(PSetCachingThreshold);
296 DECL_PIOCTL(PSetCachingBlkSize);
300 * A macro that says whether we're going to need HandleClientContext().
301 * This is currently used only by the nfs translator.
303 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
304 #define AFS_NEED_CLIENTCONTEXT
307 /* Prototypes for private routines */
308 #ifdef AFS_NEED_CLIENTCONTEXT
309 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
313 int HandleIoctl(register struct vcache *avc, register afs_int32 acom,
314 struct afs_ioctl *adata);
315 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
316 register struct afs_ioctl *ablob, int afollow,
317 afs_ucred_t **acred);
318 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
321 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
322 struct afs_pdata *, struct afs_pdata *,
325 static pioctlFunction VpioctlSw[] = {
330 PGetVolumeStatus, /* 4 */
331 PSetVolumeStatus, /* 5 */
336 PCheckServers, /* 10 */
337 PCheckVolNames, /* 11 */
339 PBogus, /* 13 -- used to be quick check time */
340 PFindVolume, /* 14 */
341 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
342 PBogus, /* 16 -- used to be testing code */
343 PNoop, /* 17 -- used to be enable group */
344 PNoop, /* 18 -- used to be disable group */
345 PBogus, /* 19 -- used to be list group */
346 PViceAccess, /* 20 */
347 PUnlog, /* 21 -- unlog *is* unpag in this system */
348 PGetFID, /* 22 -- get file ID */
349 PBogus, /* 23 -- used to be waitforever */
350 PSetCacheSize, /* 24 */
351 PRemoveCallBack, /* 25 -- flush only the callback */
354 PRemoveMount, /* 28 -- delete mount point */
355 PNewStatMount, /* 29 -- new style mount point stat */
356 PGetFileCell, /* 30 -- get cell name for input file */
357 PGetWSCell, /* 31 -- get cell name for workstation */
358 PMariner, /* 32 - set/get mariner host */
359 PGetUserCell, /* 33 -- get cell name for user */
360 PBogus, /* 34 -- Enable/Disable logging */
361 PGetCellStatus, /* 35 */
362 PSetCellStatus, /* 36 */
363 PFlushVolumeData, /* 37 -- flush all data from a volume */
364 PSetSysName, /* 38 - Set system name */
365 PExportAfs, /* 39 - Export Afs to remote nfs clients */
366 PGetCacheSize, /* 40 - get cache size and usage */
367 PGetVnodeXStatus, /* 41 - get vcache's special status */
368 PSetSPrefs33, /* 42 - Set CM Server preferences... */
369 PGetSPrefs, /* 43 - Get CM Server preferences... */
370 PGag, /* 44 - turn off/on all CM messages */
371 PTwiddleRx, /* 45 - adjust some RX params */
372 PSetSPrefs, /* 46 - Set CM Server preferences... */
373 PStoreBehind, /* 47 - set degree of store behind to be done */
374 PGCPAGs, /* 48 - disable automatic pag gc-ing */
375 PGetInitParams, /* 49 - get initial cm params */
376 PGetCPrefs, /* 50 - get client interface addresses */
377 PSetCPrefs, /* 51 - set client interface addresses */
378 PFlushMount, /* 52 - flush mount symlink data */
379 PRxStatProc, /* 53 - control process RX statistics */
380 PRxStatPeer, /* 54 - control peer RX statistics */
381 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
382 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
383 PBogus, /* 57 -- arla: set file prio */
384 PBogus, /* 58 -- arla: fallback getfh */
385 PBogus, /* 59 -- arla: fallback fhopen */
386 PBogus, /* 60 -- arla: controls xfsdebug */
387 PBogus, /* 61 -- arla: controls arla debug */
388 PBogus, /* 62 -- arla: debug interface */
389 PBogus, /* 63 -- arla: print xfs status */
390 PBogus, /* 64 -- arla: force cache check */
391 PBogus, /* 65 -- arla: break callback */
392 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
393 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
394 PBogus, /* 68 -- arla: fetch stats */
395 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
398 static pioctlFunction CpioctlSw[] = {
400 PNewAlias, /* 1 -- create new cell alias */
401 PListAliases, /* 2 -- list cell aliases */
402 PCallBackAddr, /* 3 -- request addr for callback rxcon */
404 PDiscon, /* 5 -- get/set discon mode */
415 static pioctlFunction OpioctlSw[] = {
417 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
418 #if defined(AFS_CACHE_BYPASS)
419 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
421 PNoop /* 2 -- get/set cache-bypass size threshold */
425 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
426 int afs_nobody = NFS_NOBODY;
429 HandleIoctl(register struct vcache *avc, register afs_int32 acom,
430 struct afs_ioctl *adata)
432 register afs_int32 code;
435 AFS_STATCNT(HandleIoctl);
437 switch (acom & 0xff) {
439 avc->f.states |= CSafeStore;
441 /* SXW - Should we force a MetaData flush for this flag setting */
444 /* case 2 used to be abort store, but this is no longer provided,
445 * since it is impossible to implement under normal Unix.
449 /* return the name of the cell this file is open on */
450 register struct cell *tcell;
451 register afs_int32 i;
453 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
455 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
457 if (i > adata->out_size) {
458 /* 0 means we're not interested in the output */
459 if (adata->out_size != 0)
463 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
465 afs_PutCell(tcell, READ_LOCK);
471 case 49: /* VIOC_GETINITPARAMS */
472 if (adata->out_size < sizeof(struct cm_initparams)) {
475 AFS_COPYOUT(&cm_initParams, adata->out,
476 sizeof(struct cm_initparams), code);
488 return code; /* so far, none implemented */
492 /* For aix we don't temporarily bypass ioctl(2) but rather do our
493 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
494 * is now called from afs_gn_ioctl.
497 afs_ioctl(struct vcache *tvc, int cmd, int arg)
499 struct afs_ioctl data;
502 AFS_STATCNT(afs_ioctl);
503 if (((cmd >> 8) & 0xff) == 'V') {
504 /* This is a VICEIOCTL call */
505 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
508 error = HandleIoctl(tvc, cmd, &data);
511 /* No-op call; just return. */
515 # if defined(AFS_AIX32_ENV)
516 # if defined(AFS_AIX51_ENV)
519 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
521 # else /* __64BIT__ */
523 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
525 # endif /* __64BIT__ */
528 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
529 # endif /* AFS_AIX51_ENV */
534 # ifdef AFS_AIX51_ENV
537 } u_uap, *uap = &u_uap;
539 register struct vcache *tvc;
540 register int ioctlDone = 0, code = 0;
542 AFS_STATCNT(afs_xioctl);
546 # ifdef AFS_AIX51_ENV
550 if (setuerror(getf(uap->fd, &fd))) {
553 if (fd->f_type == DTYPE_VNODE) {
554 /* good, this is a vnode; next see if it is an AFS vnode */
555 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
556 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
557 /* This is an AFS vnode */
558 if (((uap->com >> 8) & 0xff) == 'V') {
559 register struct afs_ioctl *datap;
562 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
563 code=copyin_afs_ioctl((char *)uap->arg, datap);
565 osi_FreeSmallSpace(datap);
567 # if defined(AFS_AIX41_ENV)
570 return (setuerror(code), code);
572 code = HandleIoctl(tvc, uap->com, datap);
573 osi_FreeSmallSpace(datap);
576 # if defined(AFS_AIX41_ENV)
583 # if defined(AFS_AIX41_ENV)
585 # if defined(AFS_AIX51_ENV)
587 code = okioctl(fdes, com, arg, ext, arg2, arg3);
588 # else /* __64BIT__ */
589 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
590 # endif /* __64BIT__ */
591 # else /* !AFS_AIX51_ENV */
592 code = okioctl(fdes, com, arg, ext);
593 # endif /* AFS_AIX51_ENV */
595 # elif defined(AFS_AIX32_ENV)
596 okioctl(fdes, com, arg, ext);
599 # if defined(KERNEL_HAVE_UERROR)
602 # if !defined(AFS_AIX41_ENV)
603 return (getuerror()? -1 : u.u_ioctlrv);
605 return getuerror()? -1 : 0;
612 #elif defined(AFS_SGI_ENV)
613 # if defined(AFS_SGI65_ENV)
614 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
615 rval_t * rvalp, struct vopbd * vbds)
617 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
618 rval_t * rvalp, struct vopbd * vbds)
621 struct afs_ioctl data;
627 AFS_STATCNT(afs_ioctl);
628 if (((cmd >> 8) & 0xff) == 'V') {
629 /* This is a VICEIOCTL call */
630 error = copyin_afs_ioctl(arg, &data);
633 locked = ISAFS_GLOCK();
636 error = HandleIoctl(tvc, cmd, &data);
641 /* No-op call; just return. */
645 #elif defined(AFS_SUN5_ENV)
646 struct afs_ioctl_sys {
653 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
656 register struct vcache *tvc;
657 register int ioctlDone = 0, code = 0;
659 AFS_STATCNT(afs_xioctl);
660 # if defined(AFS_SUN57_ENV)
664 # elif defined(AFS_SUN54_ENV)
669 if (code = getf(uap->fd, &fd)) {
673 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
674 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
675 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
676 /* This is an AFS vnode */
677 if (((uap->com >> 8) & 0xff) == 'V') {
678 register struct afs_ioctl *datap;
681 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
682 code=copyin_afs_ioctl((char *)uap->arg, datap);
684 osi_FreeSmallSpace(datap);
686 # if defined(AFS_SUN54_ENV)
693 code = HandleIoctl(tvc, uap->com, datap);
694 osi_FreeSmallSpace(datap);
700 # if defined(AFS_SUN57_ENV)
702 # elif defined(AFS_SUN54_ENV)
708 code = ioctl(uap, rvp);
712 #elif defined(AFS_LINUX22_ENV)
713 struct afs_ioctl_sys {
718 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
721 struct afs_ioctl_sys ua, *uap = &ua;
722 register struct vcache *tvc;
723 register int ioctlDone = 0, code = 0;
725 AFS_STATCNT(afs_xioctl);
730 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
731 /* This is an AFS vnode */
732 if (((uap->com >> 8) & 0xff) == 'V') {
733 register struct afs_ioctl *datap;
735 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
736 code = copyin_afs_ioctl((char *)uap->arg, datap);
738 osi_FreeSmallSpace(datap);
742 code = HandleIoctl(tvc, uap->com, datap);
743 osi_FreeSmallSpace(datap);
752 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
760 afs_xioctl(afs_proc_t *p, register struct ioctl_args *uap, register_t *retval)
763 register struct vcache *tvc;
764 register int ioctlDone = 0, code = 0;
766 AFS_STATCNT(afs_xioctl);
767 if ((code = fdgetf(p, uap->fd, &fd)))
769 if (fd->f_type == DTYPE_VNODE) {
770 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
771 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
772 /* This is an AFS vnode */
773 if (((uap->com >> 8) & 0xff) == 'V') {
774 register struct afs_ioctl *datap;
776 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
777 code = copyin_afs_ioctl((char *)uap->arg, datap);
779 osi_FreeSmallSpace(datap);
783 code = HandleIoctl(tvc, uap->com, datap);
784 osi_FreeSmallSpace(datap);
792 return ioctl(p, uap, retval);
796 #elif defined(AFS_XBSD_ENV)
797 # if defined(AFS_FBSD50_ENV)
800 afs_xioctl(struct thread *td, register struct ioctl_args *uap,
803 afs_proc_t *p = td->td_proc;
812 afs_xioctl(afs_proc_t *p, register struct ioctl_args *uap, register_t *retval)
815 register struct filedesc *fdp;
816 register struct vcache *tvc;
817 register int ioctlDone = 0, code = 0;
820 AFS_STATCNT(afs_xioctl);
822 if ((u_int) uap->fd >= fdp->fd_nfiles
823 || (fd = fdp->fd_ofiles[uap->fd]) == NULL)
825 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
827 /* first determine whether this is any sort of vnode */
828 if (fd->f_type == DTYPE_VNODE) {
829 /* good, this is a vnode; next see if it is an AFS vnode */
830 # if defined(AFS_OBSD_ENV)
832 IsAfsVnode((struct vnode *)fd->
833 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
835 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
837 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
838 /* This is an AFS vnode */
839 if (((uap->com >> 8) & 0xff) == 'V') {
840 register struct afs_ioctl *datap;
842 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
843 code = copyin_afs_ioctl((char *)uap->arg, datap);
845 osi_FreeSmallSpace(datap);
849 code = HandleIoctl(tvc, uap->com, datap);
850 osi_FreeSmallSpace(datap);
858 # if defined(AFS_FBSD50_ENV)
859 return ioctl(td, uap);
860 # elif defined(AFS_FBSD_ENV)
861 return ioctl(p, uap);
862 # elif defined(AFS_OBSD_ENV)
863 code = sys_ioctl(p, uap, retval);
869 #elif defined(UKERNEL)
877 } *uap = (struct a *)get_user_struct()->u_ap;
878 register struct file *fd;
879 register struct vcache *tvc;
880 register int ioctlDone = 0, code = 0;
882 AFS_STATCNT(afs_xioctl);
887 /* first determine whether this is any sort of vnode */
888 if (fd->f_type == DTYPE_VNODE) {
889 /* good, this is a vnode; next see if it is an AFS vnode */
890 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
891 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
892 /* This is an AFS vnode */
893 if (((uap->com >> 8) & 0xff) == 'V') {
894 register struct afs_ioctl *datap;
896 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
897 code=copyin_afs_ioctl((char *)uap->arg, datap);
899 osi_FreeSmallSpace(datap);
902 return (setuerror(code), code);
904 code = HandleIoctl(tvc, uap->com, datap);
905 osi_FreeSmallSpace(datap);
918 #endif /* AFS_HPUX102_ENV */
920 #if defined(AFS_SGI_ENV)
921 /* "pioctl" system call entry point; just pass argument to the parameterized
930 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
934 AFS_STATCNT(afs_pioctl);
936 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
938 # ifdef AFS_SGI64_ENV
945 #elif defined(AFS_FBSD50_ENV)
947 afs_pioctl(struct thread *td, void *args, int *retval)
954 } *uap = (struct a *)args;
956 AFS_STATCNT(afs_pioctl);
957 return (afs_syscall_pioctl
958 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
961 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
963 # if defined(AFS_FBSD_ENV)
964 afs_pioctl(struct thread *td, void *args)
966 afs_pioctl(afs_proc_t *p, void *args, int *retval)
974 } *uap = (struct a *)args;
976 AFS_STATCNT(afs_pioctl);
977 # ifdef AFS_DARWIN80_ENV
978 return (afs_syscall_pioctl
979 (uap->path, uap->cmd, uap->cmarg, uap->follow,
982 return (afs_syscall_pioctl
983 (uap->path, uap->cmd, uap->cmarg, uap->follow,
984 # if defined(AFS_FBSD_ENV)
987 p->p_cred->pc_ucred));
994 /* macro to avoid adding any more #ifdef's to pioctl code. */
995 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
996 #define PIOCTL_FREE_CRED() crfree(credp)
998 #define PIOCTL_FREE_CRED()
1003 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1004 rval_t *vvp, afs_ucred_t *credp)
1006 #ifdef AFS_DARWIN100_ENV
1007 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1008 int follow, afs_ucred_t *credp)
1009 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1010 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1013 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1017 struct afs_ioctl data;
1018 #ifdef AFS_NEED_CLIENTCONTEXT
1019 afs_ucred_t *tmpcred = NULL;
1021 #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)
1022 afs_ucred_t *foreigncreds = NULL;
1024 register afs_int32 code = 0;
1025 struct vnode *vp = NULL;
1026 #ifdef AFS_AIX41_ENV
1027 struct ucred *credp = crref(); /* don't free until done! */
1029 #ifdef AFS_LINUX22_ENV
1030 cred_t *credp = crref(); /* don't free until done! */
1034 AFS_STATCNT(afs_syscall_pioctl);
1036 follow = 1; /* compat. with old venus */
1037 code = copyin_afs_ioctl(cmarg, &data);
1040 #if defined(KERNEL_HAVE_UERROR)
1045 if ((com & 0xff) == PSetClientContext) {
1046 #ifdef AFS_NEED_CLIENTCONTEXT
1047 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1048 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1050 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1054 crfree(foreigncreds);
1057 #if defined(KERNEL_HAVE_UERROR)
1058 return (setuerror(code), code);
1063 #else /* AFS_NEED_CLIENTCONTEXT */
1065 #endif /* AFS_NEED_CLIENTCONTEXT */
1067 #ifdef AFS_NEED_CLIENTCONTEXT
1070 * We could have done without temporary setting the u.u_cred below
1071 * (foreigncreds could be passed as param the pioctl modules)
1072 * but calls such as afs_osi_suser() doesn't allow that since it
1073 * references u.u_cred directly. We could, of course, do something
1074 * like afs_osi_suser(cred) which, I think, is better since it
1075 * generalizes and supports multi cred environments...
1077 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1079 credp = foreigncreds;
1080 #elif defined(AFS_AIX41_ENV)
1081 tmpcred = crref(); /* XXX */
1082 crset(foreigncreds);
1083 #elif defined(AFS_HPUX101_ENV)
1084 tmpcred = p_cred(u.u_procp);
1085 set_p_cred(u.u_procp, foreigncreds);
1086 #elif defined(AFS_SGI_ENV)
1087 tmpcred = OSI_GET_CURRENT_CRED();
1088 OSI_SET_CURRENT_CRED(foreigncreds);
1091 u.u_cred = foreigncreds;
1094 #endif /* AFS_NEED_CLIENTCONTEXT */
1095 if ((com & 0xff) == 15) {
1096 /* special case prefetch so entire pathname eval occurs in helper process.
1097 * otherwise, the pioctl call is essentially useless */
1098 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1100 Prefetch(path, &data, follow,
1101 foreigncreds ? foreigncreds : credp);
1103 code = Prefetch(path, &data, follow, osi_curcred());
1106 #if defined(KERNEL_HAVE_UERROR)
1113 #ifdef AFS_AIX41_ENV
1115 lookupname(path, USR, follow, NULL, &vp,
1116 foreigncreds ? foreigncreds : credp);
1118 #ifdef AFS_LINUX22_ENV
1119 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1121 vp = (struct vnode *)dp->d_inode;
1123 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1124 #if defined(AFS_FBSD80_ENV) /* XXX check on 7x */
1126 #endif /* AFS_FBSD80_ENV */
1127 #endif /* AFS_LINUX22_ENV */
1128 #endif /* AFS_AIX41_ENV */
1132 #if defined(KERNEL_HAVE_UERROR)
1140 #if defined(AFS_SUN510_ENV)
1141 if (vp && !IsAfsVnode(vp)) {
1142 struct vnode *realvp;
1144 #ifdef AFS_SUN511_ENV
1145 (VOP_REALVP(vp, &realvp, NULL) == 0)
1147 (VOP_REALVP(vp, &realvp) == 0)
1150 struct vnode *oldvp = vp;
1158 /* now make the call if we were passed no file, or were passed an AFS file */
1159 if (!vp || IsAfsVnode(vp)) {
1160 #if defined(AFS_SUN5_ENV)
1161 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1162 #elif defined(AFS_AIX41_ENV)
1164 struct ucred *cred1, *cred2;
1167 cred1 = cred2 = foreigncreds;
1169 cred1 = cred2 = credp;
1171 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1172 if (cred1 != cred2) {
1173 /* something changed the creds */
1177 #elif defined(AFS_HPUX101_ENV)
1179 struct ucred *cred = p_cred(u.u_procp);
1180 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1182 #elif defined(AFS_SGI_ENV)
1185 credp = OSI_GET_CURRENT_CRED();
1186 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1188 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1189 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1190 #elif defined(UKERNEL)
1191 code = afs_HandlePioctl(vp, com, &data, follow,
1192 &(get_user_struct()->u_cred));
1194 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1197 #if defined(KERNEL_HAVE_UERROR)
1200 code = EINVAL; /* not in /afs */
1205 #if defined(AFS_NEED_CLIENTCONTEXT)
1207 #ifdef AFS_AIX41_ENV
1208 crset(tmpcred); /* restore original credentials */
1210 #if defined(AFS_HPUX101_ENV)
1211 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1212 #elif defined(AFS_SGI_ENV)
1213 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1214 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1215 credp = tmpcred; /* restore original credentials */
1217 osi_curcred() = tmpcred; /* restore original credentials */
1218 #endif /* AFS_HPUX101_ENV */
1219 crfree(foreigncreds);
1222 #endif /* AFS_NEED_CLIENTCONTEXT */
1224 #ifdef AFS_LINUX22_ENV
1227 #if defined(AFS_FBSD80_ENV)
1228 if (VOP_ISLOCKED(vp))
1230 #endif /* AFS_FBSD80_ENV */
1231 AFS_RELE(vp); /* put vnode back */
1235 #if defined(KERNEL_HAVE_UERROR)
1238 return (getuerror());
1244 #ifdef AFS_DARWIN100_ENV
1246 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1247 int follow, afs_ucred_t *credp)
1249 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1250 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1255 #define MAXPIOCTLTOKENLEN \
1256 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1259 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1260 register struct afs_ioctl *ablob, int afollow,
1261 afs_ucred_t **acred)
1264 struct vrequest treq;
1265 register afs_int32 code;
1266 register afs_int32 function, device;
1267 struct afs_pdata input, output;
1268 struct afs_pdata copyInput, copyOutput;
1270 pioctlFunction *pioctlSw;
1272 struct afs_fakestat_state fakestate;
1274 memset(&input, 0, sizeof(input));
1275 memset(&output, 0, sizeof(output));
1277 avc = avp ? VTOAFS(avp) : NULL;
1278 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1279 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1280 AFS_STATCNT(HandlePioctl);
1282 code = afs_InitReq(&treq, *acred);
1286 afs_InitFakeStat(&fakestate);
1288 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1292 device = (acom & 0xff00) >> 8;
1294 case 'V': /* Original pioctls */
1295 pioctlSw = VpioctlSw;
1296 pioctlSwSize = sizeof(VpioctlSw);
1298 case 'C': /* Coordinated/common pioctls */
1299 pioctlSw = CpioctlSw;
1300 pioctlSwSize = sizeof(CpioctlSw);
1302 case 'O': /* Coordinated/common pioctls */
1303 pioctlSw = OpioctlSw;
1304 pioctlSwSize = sizeof(OpioctlSw);
1310 function = acom & 0xff;
1311 if (function >= (pioctlSwSize / sizeof(char *))) {
1316 /* Do all range checking before continuing */
1317 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1318 ablob->in_size < 0 || ablob->out_size < 0) {
1323 code = afs_pd_alloc(&input, ablob->in_size);
1327 if (ablob->in_size > 0) {
1328 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1329 input.ptr[input.remaining] = '\0';
1334 if (function == 8 && device == 'V') { /* PGetTokens */
1335 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1337 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1343 copyOutput = output;
1346 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1347 ©Output, acred);
1349 outSize = copyOutput.ptr - output.ptr;
1351 if (code == 0 && ablob->out_size > 0) {
1352 if (outSize > ablob->out_size) {
1353 code = E2BIG; /* data wont fit in user buffer */
1354 } else if (outSize) {
1355 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1360 afs_pd_free(&input);
1361 afs_pd_free(&output);
1363 afs_PutFakeStat(&fakestate);
1364 return afs_CheckCode(code, &treq, 41);
1368 * VIOCGETFID (22) - Get file ID quickly
1372 * \param[in] ain not in use
1373 * \param[out] aout fid of requested file
1375 * \retval EINVAL Error if some of the initial arguments aren't set
1377 * \post get the file id of some file
1379 DECL_PIOCTL(PGetFID)
1381 AFS_STATCNT(PGetFID);
1384 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1390 * VIOCSETAL (1) - Set access control list
1394 * \param[in] ain the ACL being set
1395 * \param[out] aout the ACL being set returned
1397 * \retval EINVAL Error if some of the standard args aren't set
1399 * \post Changed ACL, via direct writing to the wire
1402 dummy_PSetAcl(char *ain, char *aout)
1407 DECL_PIOCTL(PSetAcl)
1409 register afs_int32 code;
1410 struct afs_conn *tconn;
1411 struct AFSOpaque acl;
1412 struct AFSVolSync tsync;
1413 struct AFSFetchStatus OutStatus;
1416 AFS_STATCNT(PSetAcl);
1420 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1422 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1423 if (acl.AFSOpaque_len > 1024)
1427 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
1429 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1432 RXAFS_StoreACL(tconn->id, (struct AFSFid *)&avc->f.fid.Fid,
1433 &acl, &OutStatus, &tsync);
1438 } while (afs_Analyze
1439 (tconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1440 SHARED_LOCK, NULL));
1442 /* now we've forgotten all of the access info */
1443 ObtainWriteLock(&afs_xcbhash, 455);
1445 afs_DequeueCallback(avc);
1446 avc->f.states &= ~(CStatd | CUnique);
1447 ReleaseWriteLock(&afs_xcbhash);
1448 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1449 osi_dnlc_purgedp(avc);
1451 /* SXW - Should we flush metadata here? */
1455 int afs_defaultAsynchrony = 0;
1458 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1462 * \param[in] ain sbstruct (store behind structure) input
1463 * \param[out] aout resulting sbstruct
1466 * Error if the user doesn't have super-user credentials
1468 * Error if there isn't enough access to not check the mode bits
1471 * Changes either the default asynchrony (the amount of data that
1472 * can remain to be written when the cache manager returns control
1473 * to the user), or the asyncrony for the specified file.
1475 DECL_PIOCTL(PStoreBehind)
1477 struct sbstruct sbr;
1479 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1482 if (sbr.sb_default != -1) {
1483 if (afs_osi_suser(*acred))
1484 afs_defaultAsynchrony = sbr.sb_default;
1489 if (avc && (sbr.sb_thisfile != -1)) {
1491 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1492 avc->asynchrony = sbr.sb_thisfile;
1497 memset(&sbr, 0, sizeof(sbr));
1498 sbr.sb_default = afs_defaultAsynchrony;
1500 sbr.sb_thisfile = avc->asynchrony;
1503 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1507 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1511 * \param[in] ain not in use
1512 * \param[out] aout not in use
1514 * \retval EACCES Error if the user doesn't have super-user credentials
1516 * \post set the gcpags to GCPAGS_USERDISABLED
1518 DECL_PIOCTL(PGCPAGs)
1520 if (!afs_osi_suser(*acred)) {
1523 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1528 * VIOCGETAL (2) - Get access control list
1532 * \param[in] ain not in use
1533 * \param[out] aout the ACL
1535 * \retval EINVAL Error if some of the standard args aren't set
1536 * \retval ERANGE Error if the vnode of the file id is too large
1537 * \retval -1 Error if getting the ACL failed
1539 * \post Obtain the ACL, based on file ID
1542 * There is a hack to tell which type of ACL is being returned, checks
1543 * the top 2-bytes of the input size to judge what type of ACL it is,
1544 * only for dfs xlator ACLs
1546 DECL_PIOCTL(PGetAcl)
1548 struct AFSOpaque acl;
1549 struct AFSVolSync tsync;
1550 struct AFSFetchStatus OutStatus;
1552 struct afs_conn *tconn;
1556 AFS_STATCNT(PGetAcl);
1559 Fid.Volume = avc->f.fid.Fid.Volume;
1560 Fid.Vnode = avc->f.fid.Fid.Vnode;
1561 Fid.Unique = avc->f.fid.Fid.Unique;
1562 if (avc->f.states & CForeign) {
1564 * For a dfs xlator acl we have a special hack so that the
1565 * xlator will distinguish which type of acl will return. So
1566 * we currently use the top 2-bytes (vals 0-4) to tell which
1567 * type of acl to bring back. Horrible hack but this will
1568 * cause the least number of changes to code size and interfaces.
1570 if (Fid.Vnode & 0xc0000000)
1572 Fid.Vnode |= (ain->remaining << 30);
1574 acl.AFSOpaque_val = aout->ptr;
1576 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
1578 acl.AFSOpaque_val[0] = '\0';
1579 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1581 code = RXAFS_FetchACL(tconn->id, &Fid, &acl, &OutStatus, &tsync);
1586 } while (afs_Analyze
1587 (tconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1588 SHARED_LOCK, NULL));
1591 if (acl.AFSOpaque_len == 0)
1592 afs_pd_skip(aout, 1); /* leave the NULL */
1594 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1600 * PNoop returns success. Used for functions which are not implemented
1601 * or are no longer in use.
1605 * \retval Always returns success
1608 * Functions involved in this:
1609 * 17 (VIOCENGROUP) -- used to be enable group;
1610 * 18 (VIOCDISGROUP) -- used to be disable group;
1611 * 2 (?) -- get/set cache-bypass size threshold
1620 * PBogus returns fail. Used for functions which are not implemented or
1621 * are no longer in use.
1625 * \retval EINVAL Always returns this value
1628 * Functions involved in this:
1634 * 13 (VIOCGETTIME) -- used to be quick check time;
1635 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1636 * 16 (VIOCNOP) -- used to be testing code;
1637 * 19 (VIOCLISTGROUPS) -- used to be list group;
1638 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1639 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1640 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1641 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1642 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1643 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1644 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1645 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1646 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1647 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1648 * 68 (?) -- arla: fetch stats;
1652 AFS_STATCNT(PBogus);
1657 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1661 * \param[in] ain not in use (avc used to pass in file id)
1662 * \param[out] aout cell name
1664 * \retval EINVAL Error if some of the standard args aren't set
1665 * \retval ESRCH Error if the file isn't part of a cell
1667 * \post Get a cell based on a passed in file id
1669 DECL_PIOCTL(PGetFileCell)
1671 register struct cell *tcell;
1673 AFS_STATCNT(PGetFileCell);
1676 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1680 if (afs_pd_putString(aout, tcell->cellName) != 0)
1683 afs_PutCell(tcell, READ_LOCK);
1688 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1692 * \param[in] ain not in use
1693 * \param[out] aout cell name
1696 * Error if the afs daemon hasn't started yet
1698 * Error if the machine isn't part of a cell, for whatever reason
1700 * \post Get the primary cell that the machine is a part of.
1702 DECL_PIOCTL(PGetWSCell)
1704 struct cell *tcell = NULL;
1706 AFS_STATCNT(PGetWSCell);
1707 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1708 return EIO; /* Inappropriate ioctl for device */
1710 tcell = afs_GetPrimaryCell(READ_LOCK);
1711 if (!tcell) /* no primary cell? */
1714 if (afs_pd_putString(aout, tcell->cellName) != 0)
1716 afs_PutCell(tcell, READ_LOCK);
1721 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1725 * \param[in] ain not in use (user id found via areq)
1726 * \param[out] aout cell name
1729 * Error if the user id doesn't have a primary cell specified
1731 * \post Get the primary cell for a certain user, based on the user's uid
1733 DECL_PIOCTL(PGetUserCell)
1735 register afs_int32 i;
1736 register struct unixuser *tu;
1737 register struct cell *tcell;
1739 AFS_STATCNT(PGetUserCell);
1740 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1741 return EIO; /* Inappropriate ioctl for device */
1743 /* return the cell name of the primary cell for this user */
1744 i = UHash(areq->uid);
1745 ObtainWriteLock(&afs_xuser, 224);
1746 for (tu = afs_users[i]; tu; tu = tu->next) {
1747 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1749 ReleaseWriteLock(&afs_xuser);
1754 tcell = afs_GetCell(tu->cell, READ_LOCK);
1755 afs_PutUser(tu, WRITE_LOCK);
1759 if (afs_pd_putString(aout, tcell->cellName) != 0)
1761 afs_PutCell(tcell, READ_LOCK);
1764 ReleaseWriteLock(&afs_xuser);
1770 * VIOCSETTOK (3) - Set authentication tokens
1774 * \param[in] ain the krb tickets from which to set the afs tokens
1775 * \param[out] aout not in use
1778 * Error if the ticket is either too long or too short
1780 * Error if the AFS initState is below 101
1782 * Error if the cell for which the Token is being set can't be found
1785 * Set the Tokens for a specific cell name, unless there is none set,
1786 * then default to primary
1789 DECL_PIOCTL(PSetTokens)
1792 register struct unixuser *tu;
1793 struct ClearToken clear;
1794 register struct cell *tcell;
1798 struct vrequest treq;
1799 afs_int32 flag, set_parent_pag = 0;
1801 AFS_STATCNT(PSetTokens);
1802 if (!afs_resourceinit_flag) {
1806 if (afs_pd_getInt(ain, &stLen) != 0)
1809 stp = afs_pd_where(ain); /* remember where the ticket is */
1810 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1811 return EINVAL; /* malloc may fail */
1812 if (afs_pd_skip(ain, stLen) != 0)
1815 if (afs_pd_getInt(ain, &i) != 0)
1817 if (i != sizeof(struct ClearToken))
1820 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1823 if (clear.AuthHandle == -1)
1824 clear.AuthHandle = 999; /* more rxvab compat stuff */
1826 if (afs_pd_remaining(ain) != 0) {
1827 /* still stuff left? we've got primary flag and cell name.
1830 if (afs_pd_getInt(ain, &flag) != 0)
1833 /* some versions of gcc appear to need != 0 in order to get this
1835 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1840 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1843 /* rest is cell name, look it up */
1844 tcell = afs_GetCellByName(cellName, READ_LOCK);
1848 /* default to primary cell, primary id */
1849 flag = 1; /* primary id */
1850 tcell = afs_GetPrimaryCell(READ_LOCK);
1855 afs_PutCell(tcell, READ_LOCK);
1856 if (set_parent_pag) {
1858 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1859 # if defined(AFS_DARWIN_ENV)
1860 afs_proc_t *p = current_proc(); /* XXX */
1862 proc_selfname(procname, 256);
1863 # elif defined(AFS_FBSD_ENV)
1864 struct thread *p = curthread;
1865 char *procname = p->td_proc->p_comm;
1867 afs_proc_t *p = curproc; /* XXX */
1868 char *procname = p->p_comm;
1870 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1871 MyPidxx2Pid(MyPidxx), procname);
1872 if (!setpag(p, acred, -1, &pag, 1)) {
1874 if (!setpag(acred, -1, &pag, 1)) {
1876 afs_InitReq(&treq, *acred);
1880 /* now we just set the tokens */
1881 tu = afs_GetUser(areq->uid, i, WRITE_LOCK); /* i has the cell # */
1882 tu->vid = clear.ViceId;
1883 if (tu->stp != NULL) {
1884 afs_osi_Free(tu->stp, tu->stLen);
1886 tu->stp = (char *)afs_osi_Alloc(stLen);
1887 if (tu->stp == NULL) {
1891 memcpy(tu->stp, stp, stLen);
1894 afs_stats_cmfullperf.authent.TicketUpdates++;
1895 afs_ComputePAGStats();
1896 #endif /* AFS_NOSTATS */
1897 tu->states |= UHasTokens;
1898 tu->states &= ~UTokensBad;
1899 afs_SetPrimary(tu, flag);
1900 tu->tokenTime = osi_Time();
1901 afs_ResetUserConns(tu);
1902 afs_NotifyUser(tu, UTokensObtained);
1903 afs_PutUser(tu, WRITE_LOCK);
1919 * VIOCGETVOLSTAT (4) - Get volume status
1923 * \param[in] ain not in use
1924 * \param[out] aout status of the volume
1926 * \retval EINVAL Error if some of the standard args aren't set
1929 * The status of a volume (based on the FID of the volume), or an
1930 * offline message /motd
1932 DECL_PIOCTL(PGetVolumeStatus)
1935 char *offLineMsg = afs_osi_Alloc(256);
1936 char *motd = afs_osi_Alloc(256);
1937 register struct afs_conn *tc;
1938 register afs_int32 code = 0;
1939 struct AFSFetchVolumeStatus volstat;
1943 AFS_STATCNT(PGetVolumeStatus);
1950 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
1952 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1955 RXAFS_GetVolumeStatus(tc->id, avc->f.fid.Fid.Volume, &volstat,
1956 &Name, &offLineMsg, &motd);
1961 } while (afs_Analyze
1962 (tc, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
1963 SHARED_LOCK, NULL));
1967 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
1968 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
1970 if (afs_pd_putString(aout, volName) != 0)
1972 if (afs_pd_putString(aout, offLineMsg) != 0)
1974 if (afs_pd_putString(aout, motd) != 0)
1977 afs_osi_Free(offLineMsg, 256);
1978 afs_osi_Free(motd, 256);
1983 * VIOCSETVOLSTAT (5) - Set volume status
1988 * values to set the status at, offline message, message of the day,
1989 * volume name, minimum quota, maximum quota
1991 * status of a volume, offlines messages, minimum quota, maximumm quota
1994 * Error if some of the standard args aren't set
1996 * Error if the volume is read only, or a backup volume
1998 * Error if the volume can't be accessed
2000 * Error if the volume name, offline message, and motd are too big
2003 * Set the status of a volume, including any offline messages,
2004 * a minimum quota, and a maximum quota
2006 DECL_PIOCTL(PSetVolumeStatus)
2011 register struct afs_conn *tc;
2012 register afs_int32 code = 0;
2013 struct AFSFetchVolumeStatus volstat;
2014 struct AFSStoreVolumeStatus storeStat;
2015 register struct volume *tvp;
2018 AFS_STATCNT(PSetVolumeStatus);
2022 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2024 if (tvp->states & (VRO | VBackup)) {
2025 afs_PutVolume(tvp, READ_LOCK);
2028 afs_PutVolume(tvp, READ_LOCK);
2033 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2036 if (afs_pd_getStringPtr(ain, &volName) != 0)
2038 if (strlen(volName) > 32)
2041 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2043 if (strlen(offLineMsg) > 256)
2046 if (afs_pd_getStringPtr(ain, &motd) != 0)
2048 if (strlen(motd) > 256)
2051 /* Done reading ... */
2054 if (volstat.MinQuota != -1) {
2055 storeStat.MinQuota = volstat.MinQuota;
2056 storeStat.Mask |= AFS_SETMINQUOTA;
2058 if (volstat.MaxQuota != -1) {
2059 storeStat.MaxQuota = volstat.MaxQuota;
2060 storeStat.Mask |= AFS_SETMAXQUOTA;
2063 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
2065 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2068 RXAFS_SetVolumeStatus(tc->id, avc->f.fid.Fid.Volume, &storeStat,
2069 volName, offLineMsg, motd);
2074 } while (afs_Analyze
2075 (tc, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2076 SHARED_LOCK, NULL));
2080 /* we are sending parms back to make compat. with prev system. should
2081 * change interface later to not ask for current status, just set new
2084 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2086 if (afs_pd_putString(aout, volName) != 0)
2088 if (afs_pd_putString(aout, offLineMsg) != 0)
2090 if (afs_pd_putString(aout, motd) != 0)
2097 * VIOCFLUSH (6) - Invalidate cache entry
2101 * \param[in] ain not in use
2102 * \param[out] aout not in use
2104 * \retval EINVAL Error if some of the standard args aren't set
2106 * \post Flush any information the cache manager has on an entry
2110 AFS_STATCNT(PFlush);
2113 #ifdef AFS_BOZONLOCK_ENV
2114 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2116 ObtainWriteLock(&avc->lock, 225);
2117 afs_ResetVCache(avc, *acred);
2118 ReleaseWriteLock(&avc->lock);
2119 #ifdef AFS_BOZONLOCK_ENV
2120 afs_BozonUnlock(&avc->pvnLock, avc);
2126 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2131 * the last component in a path, related to mountpoint that we're
2132 * looking for information about
2134 * volume, cell, link data
2136 * \retval EINVAL Error if some of the standard args aren't set
2137 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2138 * \retval EIO Error if the link data can't be accessed
2140 * \post Get the volume, and cell, as well as the link data for a mount point
2142 DECL_PIOCTL(PNewStatMount)
2144 register afs_int32 code;
2145 register struct vcache *tvc;
2146 register struct dcache *tdc;
2147 struct VenusFid tfid;
2150 struct sysname_info sysState;
2151 afs_size_t offset, len;
2153 AFS_STATCNT(PNewStatMount);
2157 if (afs_pd_getStringPtr(ain, &name) != 0)
2160 code = afs_VerifyVCache(avc, areq);
2163 if (vType(avc) != VDIR) {
2166 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2169 Check_AtSys(avc, name, &sysState, areq);
2170 ObtainReadLock(&tdc->lock);
2172 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2173 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2174 ReleaseReadLock(&tdc->lock);
2175 afs_PutDCache(tdc); /* we're done with the data */
2176 bufp = sysState.name;
2180 tfid.Cell = avc->f.fid.Cell;
2181 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2182 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2183 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2185 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2191 if (tvc->mvstat != 1) {
2196 ObtainWriteLock(&tvc->lock, 226);
2197 code = afs_HandleLink(tvc, areq);
2199 if (tvc->linkData) {
2200 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2203 /* we have the data */
2204 if (afs_pd_putString(aout, tvc->linkData) != 0)
2210 ReleaseWriteLock(&tvc->lock);
2213 if (sysState.allocked)
2214 osi_FreeLargeSpace(bufp);
2219 * VIOCGETTOK (8) - Get authentication tokens
2223 * \param[in] ain cellid to return tokens for
2224 * \param[out] aout token
2227 * Error if the afs daemon hasn't started yet
2229 * Error if the input parameter is out of the bounds of the available
2232 * Error if there aren't tokens for this cell
2235 * If the input paramater exists, get the token that corresponds to
2236 * the parameter value, if there is no token at this value, get the
2237 * token for the first cell
2239 * \notes "it's a weird interface (from comments in the code)"
2242 DECL_PIOCTL(PGetTokens)
2244 register struct cell *tcell;
2245 register afs_int32 i;
2246 register struct unixuser *tu;
2247 afs_int32 iterator = 0;
2251 AFS_STATCNT(PGetTokens);
2252 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2253 return EIO; /* Inappropriate ioctl for device */
2255 /* weird interface. If input parameter is present, it is an integer and
2256 * we're supposed to return the parm'th tokens for this unix uid.
2257 * If not present, we just return tokens for cell 1.
2258 * If counter out of bounds, return EDOM.
2259 * If no tokens for the particular cell, return ENOTCONN.
2260 * Also, if this mysterious parm is present, we return, along with the
2261 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2262 * at the end, in that order.
2264 newStyle = (afs_pd_remaining(ain) > 0);
2266 if (afs_pd_getInt(ain, &iterator) != 0)
2269 i = UHash(areq->uid);
2270 ObtainReadLock(&afs_xuser);
2271 for (tu = afs_users[i]; tu; tu = tu->next) {
2273 if (tu->uid == areq->uid && (tu->states & UHasTokens)) {
2274 if (iterator-- == 0)
2275 break; /* are we done yet? */
2278 if (tu->uid == areq->uid && afs_IsPrimaryCellNum(tu->cell))
2284 * No need to hold a read lock on each user entry
2288 ReleaseReadLock(&afs_xuser);
2293 if (((tu->states & UHasTokens) == 0)
2294 || (tu->ct.EndTimestamp < osi_Time())) {
2295 tu->states |= (UTokensBad | UNeedsReset);
2296 afs_NotifyUser(tu, UTokensDropped);
2297 afs_PutUser(tu, READ_LOCK);
2300 iterator = tu->stLen; /* for compat, we try to return 56 byte tix if they fit */
2302 iterator = 56; /* # of bytes we're returning */
2304 if (afs_pd_putInt(aout, iterator) != 0)
2306 if (afs_pd_putBytes(aout, tu->stp, tu->stLen) != 0)
2308 if (tu->stLen < 56) {
2309 /* Tokens are always 56 bytes or larger */
2310 if (afs_pd_skip(aout, iterator - tu->stLen) != 0) {
2315 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2317 if (afs_pd_putBytes(aout, &tu->ct, sizeof(struct ClearToken)) != 0)
2321 /* put out primary id and cell name, too */
2322 iterator = (tu->states & UPrimary ? 1 : 0);
2323 if (afs_pd_putInt(aout, iterator) != 0)
2325 tcell = afs_GetCell(tu->cell, READ_LOCK);
2327 if (afs_pd_putString(aout, tcell->cellName) != 0)
2329 afs_PutCell(tcell, READ_LOCK);
2331 if (afs_pd_putString(aout, "") != 0)
2334 /* Got here, all is good */
2337 afs_PutUser(tu, READ_LOCK);
2342 * VIOCUNLOG (9) - Invalidate tokens
2346 * \param[in] ain not in use
2347 * \param[out] aout not in use
2349 * \retval EIO Error if the afs daemon hasn't been started yet
2351 * \post remove tokens from a user, specified by the user id
2353 * \notes sets the token's time to 0, which then causes it to be removed
2354 * \notes Unlog is the same as un-pag in OpenAFS
2358 register afs_int32 i;
2359 register struct unixuser *tu;
2361 AFS_STATCNT(PUnlog);
2362 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2363 return EIO; /* Inappropriate ioctl for device */
2365 i = UHash(areq->uid);
2366 ObtainWriteLock(&afs_xuser, 227);
2367 for (tu = afs_users[i]; tu; tu = tu->next) {
2368 if (tu->uid == areq->uid) {
2370 tu->states &= ~UHasTokens;
2371 /* security is not having to say you're sorry */
2372 memset(&tu->ct, 0, sizeof(struct ClearToken));
2374 ReleaseWriteLock(&afs_xuser);
2375 afs_NotifyUser(tu, UTokensDropped);
2376 /* We have to drop the lock over the call to afs_ResetUserConns,
2377 * since it obtains the afs_xvcache lock. We could also keep
2378 * the lock, and modify ResetUserConns to take parm saying we
2379 * obtained the lock already, but that is overkill. By keeping
2380 * the "tu" pointer held over the released lock, we guarantee
2381 * that we won't lose our place, and that we'll pass over
2382 * every user conn that existed when we began this call.
2384 afs_ResetUserConns(tu);
2386 ObtainWriteLock(&afs_xuser, 228);
2388 /* set the expire times to 0, causes
2389 * afs_GCUserData to remove this entry
2391 tu->ct.EndTimestamp = 0;
2393 #endif /* UKERNEL */
2396 ReleaseWriteLock(&afs_xuser);
2401 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2405 * \param[in] ain host address to be set
2406 * \param[out] aout old host address
2409 * depending on whether or not a variable is set, either get the host
2410 * for the cache manager monitor, or set the old address and give it
2413 * \notes Errors turn off mariner
2415 DECL_PIOCTL(PMariner)
2417 afs_int32 newHostAddr;
2418 afs_int32 oldHostAddr;
2420 AFS_STATCNT(PMariner);
2422 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2425 oldHostAddr = 0xffffffff; /* disabled */
2427 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2430 if (newHostAddr == 0xffffffff) {
2431 /* disable mariner operations */
2433 } else if (newHostAddr) {
2435 afs_marinerHost = newHostAddr;
2438 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2445 * VIOCCKSERV (10) - Check that servers are up
2449 * \param[in] ain name of the cell
2450 * \param[out] aout current down server list
2452 * \retval EIO Error if the afs daemon hasn't started yet
2453 * \retval EACCES Error if the user doesn't have super-user credentials
2454 * \retval ENOENT Error if we are unable to obtain the cell
2457 * Either a fast check (where it doesn't contact servers) or a
2458 * local check (checks local cell only)
2460 DECL_PIOCTL(PCheckServers)
2463 register struct server *ts;
2465 char *cellName = NULL;
2467 struct chservinfo *pcheck;
2469 AFS_STATCNT(PCheckServers);
2471 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2472 return EIO; /* Inappropriate ioctl for device */
2474 /* This is tricky, because we need to peak at the datastream to see
2475 * what we're getting. For now, let's cheat. */
2477 /* ain contains either an int32 or a string */
2478 if (ain->remaining == 0)
2481 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2482 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2486 if (pcheck->tinterval >= 0) {
2487 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2489 if (pcheck->tinterval > 0) {
2490 if (!afs_osi_suser(*acred))
2492 afs_probe_interval = pcheck->tinterval;
2496 temp = pcheck->tflags;
2498 cellName = pcheck->tbuffer;
2499 } else { /* For pre afs3.3 versions */
2500 if (afs_pd_getInt(ain, &temp) != 0)
2502 if (afs_pd_remaining(ain) > 0) {
2503 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2509 * 1: fast check, don't contact servers.
2510 * 2: local cell only.
2513 /* have cell name, too */
2514 cellp = afs_GetCellByName(cellName, READ_LOCK);
2519 if (!cellp && (temp & 2)) {
2520 /* use local cell */
2521 cellp = afs_GetPrimaryCell(READ_LOCK);
2523 if (!(temp & 1)) { /* if not fast, call server checker routine */
2524 afs_CheckServers(1, cellp); /* check down servers */
2525 afs_CheckServers(0, cellp); /* check up servers */
2527 /* now return the current down server list */
2528 ObtainReadLock(&afs_xserver);
2529 for (i = 0; i < NSERVERS; i++) {
2530 for (ts = afs_servers[i]; ts; ts = ts->next) {
2531 if (cellp && ts->cell != cellp)
2532 continue; /* cell spec'd and wrong */
2533 if ((ts->flags & SRVR_ISDOWN)
2534 && ts->addr->sa_portal != ts->cell->vlport) {
2535 afs_pd_putInt(aout, ts->addr->sa_ip);
2539 ReleaseReadLock(&afs_xserver);
2541 afs_PutCell(cellp, READ_LOCK);
2546 * VIOCCKBACK (11) - Check backup volume mappings
2550 * \param[in] ain not in use
2551 * \param[out] aout not in use
2553 * \retval EIO Error if the afs daemon hasn't started yet
2556 * Check the root volume, and then check the names if the volume
2557 * check variable is set to force, has expired, is busy, or if
2558 * the mount points variable is set
2560 DECL_PIOCTL(PCheckVolNames)
2562 AFS_STATCNT(PCheckVolNames);
2563 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2564 return EIO; /* Inappropriate ioctl for device */
2566 afs_CheckRootVolume();
2567 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2568 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2573 * VIOCCKCONN (12) - Check connections for a user
2577 * \param[in] ain not in use
2578 * \param[out] aout not in use
2581 * Error if no user is specififed, the user has no tokens set,
2582 * or if the user's tokens are bad
2585 * check to see if a user has the correct authentication.
2586 * If so, allow access.
2588 * \notes Check the connections to all the servers specified
2590 DECL_PIOCTL(PCheckAuth)
2594 struct afs_conn *tc;
2595 struct unixuser *tu;
2598 AFS_STATCNT(PCheckAuth);
2599 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2600 return EIO; /* Inappropriate ioctl for device */
2603 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2607 /* we have a user */
2608 ObtainReadLock(&afs_xsrvAddr);
2609 ObtainReadLock(&afs_xconn);
2611 /* any tokens set? */
2612 if ((tu->states & UHasTokens) == 0)
2614 /* all connections in cell 1 working? */
2615 for (i = 0; i < NSERVERS; i++) {
2616 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2617 for (tc = sa->conns; tc; tc = tc->next) {
2618 if (tc->user == tu && (tu->states & UTokensBad))
2623 ReleaseReadLock(&afs_xsrvAddr);
2624 ReleaseReadLock(&afs_xconn);
2625 afs_PutUser(tu, READ_LOCK);
2627 if (afs_pd_putInt(aout, retValue) != 0)
2633 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2637 register afs_int32 code;
2638 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2644 AFS_STATCNT(Prefetch);
2647 tp = osi_AllocLargeSpace(1024);
2648 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2650 osi_FreeLargeSpace(tp);
2653 if (afs_BBusy()) { /* do this as late as possible */
2654 osi_FreeLargeSpace(tp);
2655 return EWOULDBLOCK; /* pretty close */
2657 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2658 (afs_size_t) 0, tp, (void *)0, (void *)0);
2663 * VIOCWHEREIS (14) - Find out where a volume is located
2667 * \param[in] ain not in use
2668 * \param[out] aout volume location
2670 * \retval EINVAL Error if some of the default arguments don't exist
2671 * \retval ENODEV Error if there is no such volume
2673 * \post fine a volume, based on a volume file id
2675 * \notes check each of the servers specified
2677 DECL_PIOCTL(PFindVolume)
2679 register struct volume *tvp;
2680 register struct server *ts;
2681 register afs_int32 i;
2684 AFS_STATCNT(PFindVolume);
2687 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2691 for (i = 0; i < AFS_MAXHOSTS; i++) {
2692 ts = tvp->serverHost[i];
2695 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2700 if (i < AFS_MAXHOSTS) {
2701 /* still room for terminating NULL, add it on */
2702 if (afs_pd_putInt(aout, 0) != 0) {
2708 afs_PutVolume(tvp, READ_LOCK);
2713 * VIOCACCESS (20) - Access using PRS_FS bits
2717 * \param[in] ain PRS_FS bits
2718 * \param[out] aout not in use
2720 * \retval EINVAL Error if some of the initial arguments aren't set
2721 * \retval EACCES Error if access is denied
2723 * \post check to make sure access is allowed
2725 DECL_PIOCTL(PViceAccess)
2727 register afs_int32 code;
2730 AFS_STATCNT(PViceAccess);
2734 code = afs_VerifyVCache(avc, areq);
2738 if (afs_pd_getInt(ain, &temp) != 0)
2741 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2749 * VIOC_GETPAG (13) - Get PAG value
2753 * \param[in] ain not in use
2754 * \param[out] aout PAG value or NOPAG
2756 * \post get PAG value for the caller's cred
2758 DECL_PIOCTL(PGetPAG)
2762 pag = PagInCred(*acred);
2764 return afs_pd_putInt(aout, pag);
2767 DECL_PIOCTL(PPrecache)
2771 /*AFS_STATCNT(PPrecache);*/
2772 if (!afs_osi_suser(*acred))
2775 if (afs_pd_getInt(ain, &newValue) != 0)
2778 afs_preCache = newValue*1024;
2783 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2787 * \param[in] ain the size the venus cache should be set to
2788 * \param[out] aout not in use
2790 * \retval EACCES Error if the user doesn't have super-user credentials
2791 * \retval EROFS Error if the cache is set to be in memory
2794 * Set the cache size based on user input. If no size is given,
2795 * set it to the default OpenAFS cache size.
2798 * recompute the general cache parameters for every single block allocated
2800 DECL_PIOCTL(PSetCacheSize)
2805 AFS_STATCNT(PSetCacheSize);
2807 if (!afs_osi_suser(*acred))
2809 /* too many things are setup initially in mem cache version */
2810 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2812 if (afs_pd_getInt(ain, &newValue) != 0)
2815 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2817 if (newValue < afs_min_cache)
2818 afs_cacheBlocks = afs_min_cache;
2820 afs_cacheBlocks = newValue;
2822 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2823 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2824 afs_MaybeWakeupTruncateDaemon();
2825 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2826 afs_osi_Wait(1000, 0, 0);
2827 afs_MaybeWakeupTruncateDaemon();
2832 #define MAXGCSTATS 16
2834 * VIOCGETCACHEPARMS (40) - Get cache stats
2838 * \param[in] ain afs index flags
2839 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2841 * \post Get the cache blocks, and how many of the cache blocks there are
2843 DECL_PIOCTL(PGetCacheSize)
2845 afs_int32 results[MAXGCSTATS];
2847 register struct dcache * tdc;
2850 AFS_STATCNT(PGetCacheSize);
2852 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2853 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2854 } else if (afs_pd_remaining(ain) == 0) {
2860 memset(results, 0, sizeof(results));
2861 results[0] = afs_cacheBlocks;
2862 results[1] = afs_blocksUsed;
2863 results[2] = afs_cacheFiles;
2866 for (i = 0; i < afs_cacheFiles; i++) {
2867 if (afs_indexFlags[i] & IFFree) results[3]++;
2869 } else if (2 == flags){
2870 for (i = 0; i < afs_cacheFiles; i++) {
2871 if (afs_indexFlags[i] & IFFree) results[3]++;
2872 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2873 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2874 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2875 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2876 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2878 tdc = afs_indexTable[i];
2881 size = tdc->validPos;
2882 if ( 0 < size && size < (1<<12) ) results[10]++;
2883 else if (size < (1<<14) ) results[11]++;
2884 else if (size < (1<<16) ) results[12]++;
2885 else if (size < (1<<18) ) results[13]++;
2886 else if (size < (1<<20) ) results[14]++;
2887 else if (size >= (1<<20) ) results[15]++;
2891 return afs_pd_putBytes(aout, results, sizeof(results));
2895 * VIOCFLUSHCB (25) - Flush callback only
2899 * \param[in] ain not in use
2900 * \param[out] aout not in use
2902 * \retval EINVAL Error if some of the standard args aren't set
2903 * \retval 0 0 returned if the volume is set to read-only
2906 * Flushes callbacks, by setting the length of callbacks to one,
2907 * setting the next callback to be sent to the CB_DROPPED value,
2908 * and then dequeues everything else.
2910 DECL_PIOCTL(PRemoveCallBack)
2912 register struct afs_conn *tc;
2913 register afs_int32 code = 0;
2914 struct AFSCallBack CallBacks_Array[1];
2915 struct AFSCBFids theFids;
2916 struct AFSCBs theCBs;
2919 AFS_STATCNT(PRemoveCallBack);
2922 if (avc->f.states & CRO)
2923 return 0; /* read-only-ness can't change */
2924 ObtainWriteLock(&avc->lock, 229);
2925 theFids.AFSCBFids_len = 1;
2926 theCBs.AFSCBs_len = 1;
2927 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2928 theCBs.AFSCBs_val = CallBacks_Array;
2929 CallBacks_Array[0].CallBackType = CB_DROPPED;
2930 if (avc->callback) {
2932 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
2934 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
2936 code = RXAFS_GiveUpCallBacks(tc->id, &theFids, &theCBs);
2940 /* don't set code on failure since we wouldn't use it */
2941 } while (afs_Analyze
2942 (tc, code, &avc->f.fid, areq,
2943 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
2945 ObtainWriteLock(&afs_xcbhash, 457);
2946 afs_DequeueCallback(avc);
2948 avc->f.states &= ~(CStatd | CUnique);
2949 ReleaseWriteLock(&afs_xcbhash);
2950 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
2951 osi_dnlc_purgedp(avc);
2953 ReleaseWriteLock(&avc->lock);
2958 * VIOCNEWCELL (26) - Configure new cell
2963 * the name of the cell, the hosts that will be a part of the cell,
2964 * whether or not it's linked with another cell, the other cell it's
2965 * linked with, the file server port, and the volume server port
2969 * \retval EIO Error if the afs daemon hasn't started yet
2970 * \retval EACCES Error if the user doesn't have super-user cedentials
2971 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
2973 * \post creates a new cell
2975 DECL_PIOCTL(PNewCell)
2977 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
2978 char *newcell = NULL;
2979 char *linkedcell = NULL;
2981 afs_int32 linkedstate = 0;
2982 afs_int32 fsport = 0, vlport = 0;
2985 AFS_STATCNT(PNewCell);
2986 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2987 return EIO; /* Inappropriate ioctl for device */
2989 if (!afs_osi_suser(*acred))
2992 if (afs_pd_getInt(ain, &magic) != 0)
2994 if (magic != 0x12345678)
2997 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
2998 * server addresses while the 3.5 fs newcell command passes
2999 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3002 * This whole logic is bogus, because it relies on the newer command
3003 * sending its 12th address as 0.
3005 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3008 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3009 if (newcell[0] != '\0') {
3012 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3015 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3016 if (afs_pd_getBytes(ain, &cellHosts,
3017 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3019 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3022 if (afs_pd_getInt(ain, &fsport) != 0)
3025 fsport = 0; /* Privileged ports not allowed */
3027 if (afs_pd_getInt(ain, &vlport) != 0)
3030 vlport = 0; /* Privileged ports not allowed */
3032 if (afs_pd_getInt(ain, &ls) != 0)
3035 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3039 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3041 linkedstate |= CLinkedCell;
3044 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3046 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3051 DECL_PIOCTL(PNewAlias)
3053 /* create a new cell alias */
3054 char *realName, *aliasName;
3056 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3057 return EIO; /* Inappropriate ioctl for device */
3059 if (!afs_osi_suser(*acred))
3062 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3064 if (afs_pd_getStringPtr(ain, &realName) != 0)
3067 return afs_NewCellAlias(aliasName, realName);
3071 * VIOCGETCELL (27) - Get cell info
3075 * \param[in] ain The cell index of a specific cell
3076 * \param[out] aout list of servers in the cell
3078 * \retval EIO Error if the afs daemon hasn't started yet
3079 * \retval EDOM Error if there is no cell asked about
3081 * \post Lists the cell's server names and and addresses
3083 DECL_PIOCTL(PListCells)
3085 afs_int32 whichCell;
3086 register struct cell *tcell = 0;
3087 register afs_int32 i;
3090 AFS_STATCNT(PListCells);
3091 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3092 return EIO; /* Inappropriate ioctl for device */
3094 if (afs_pd_getInt(ain, &whichCell) != 0)
3097 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3103 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3104 if (tcell->cellHosts[i] == 0)
3106 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3109 for (;i < AFS_MAXCELLHOSTS; i++) {
3110 if (afs_pd_putInt(aout, 0) != 0)
3113 if (afs_pd_putString(aout, tcell->cellName) != 0)
3118 afs_PutCell(tcell, READ_LOCK);
3122 DECL_PIOCTL(PListAliases)
3124 afs_int32 whichAlias;
3125 register struct cell_alias *tcalias = 0;
3128 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3129 return EIO; /* Inappropriate ioctl for device */
3131 if (afs_pd_getInt(ain, &whichAlias) != 0)
3134 tcalias = afs_GetCellAlias(whichAlias);
3135 if (tcalias == NULL)
3139 if (afs_pd_putString(aout, tcalias->alias) != 0)
3141 if (afs_pd_putString(aout, tcalias->cell) != 0)
3146 afs_PutCellAlias(tcalias);
3151 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3155 * \param[in] ain the name of the file in this dir to remove
3156 * \param[out] aout not in use
3159 * Error if some of the standard args aren't set
3161 * Error if the argument to remove is not a directory
3163 * Error if there is no cache to remove the mount point from or
3164 * if a vcache doesn't exist
3167 * Ensure that everything is OK before deleting the mountpoint.
3168 * If not, don't delete. Delete a mount point based on a file id.
3170 DECL_PIOCTL(PRemoveMount)
3172 register afs_int32 code;
3175 struct sysname_info sysState;
3176 afs_size_t offset, len;
3177 register struct afs_conn *tc;
3178 register struct dcache *tdc;
3179 register struct vcache *tvc;
3180 struct AFSFetchStatus OutDirStatus;
3181 struct VenusFid tfid;
3182 struct AFSVolSync tsync;
3185 /* "ain" is the name of the file in this dir to remove */
3187 AFS_STATCNT(PRemoveMount);
3190 if (afs_pd_getStringPtr(ain, &name) != 0)
3193 code = afs_VerifyVCache(avc, areq);
3196 if (vType(avc) != VDIR)
3199 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3202 Check_AtSys(avc, name, &sysState, areq);
3203 ObtainReadLock(&tdc->lock);
3205 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3206 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3207 ReleaseReadLock(&tdc->lock);
3208 bufp = sysState.name;
3213 tfid.Cell = avc->f.fid.Cell;
3214 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3215 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3216 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3218 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3225 if (tvc->mvstat != 1) {
3231 ObtainWriteLock(&tvc->lock, 230);
3232 code = afs_HandleLink(tvc, areq);
3234 if (tvc->linkData) {
3235 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3240 ReleaseWriteLock(&tvc->lock);
3241 osi_dnlc_purgedp(tvc);
3247 ObtainWriteLock(&avc->lock, 231);
3248 osi_dnlc_remove(avc, bufp, tvc);
3250 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK);
3252 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3255 RXAFS_RemoveFile(tc->id, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3256 &OutDirStatus, &tsync);
3261 } while (afs_Analyze
3262 (tc, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3263 SHARED_LOCK, NULL));
3268 ReleaseWriteLock(&avc->lock);
3272 /* we have the thing in the cache */
3273 ObtainWriteLock(&tdc->lock, 661);
3274 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3275 /* we can do it locally */
3276 code = afs_dir_Delete(tdc, bufp);
3278 ZapDCE(tdc); /* surprise error -- invalid value */
3282 ReleaseWriteLock(&tdc->lock);
3283 afs_PutDCache(tdc); /* drop ref count */
3285 avc->f.states &= ~CUnique; /* For the dfs xlator */
3286 ReleaseWriteLock(&avc->lock);
3289 if (sysState.allocked)
3290 osi_FreeLargeSpace(bufp);
3295 * VIOC_GETCELLSTATUS (35) - Get cell status info
3299 * \param[in] ain The cell you want status information on
3300 * \param[out] aout cell state (as a struct)
3302 * \retval EIO Error if the afs daemon hasn't started yet
3303 * \retval ENOENT Error if the cell doesn't exist
3305 * \post Returns the state of the cell as defined in a struct cell
3307 DECL_PIOCTL(PGetCellStatus)
3309 register struct cell *tcell;
3313 AFS_STATCNT(PGetCellStatus);
3314 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3315 return EIO; /* Inappropriate ioctl for device */
3317 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3320 tcell = afs_GetCellByName(cellName, READ_LOCK);
3323 temp = tcell->states;
3324 afs_PutCell(tcell, READ_LOCK);
3326 return afs_pd_putInt(aout, temp);
3330 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3335 * The cell you want to set information about, and the values you
3340 * \retval EIO Error if the afs daemon hasn't started yet
3341 * \retval EACCES Error if the user doesn't have super-user credentials
3344 * Set the state of the cell in a defined struct cell, based on
3345 * whether or not SetUID is allowed
3347 DECL_PIOCTL(PSetCellStatus)
3349 register struct cell *tcell;
3351 afs_int32 flags0, flags1;
3353 if (!afs_osi_suser(*acred))
3355 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3356 return EIO; /* Inappropriate ioctl for device */
3358 if (afs_pd_getInt(ain, &flags0) != 0)
3360 if (afs_pd_getInt(ain, &flags1) != 0)
3362 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3365 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3368 if (flags0 & CNoSUID)
3369 tcell->states |= CNoSUID;
3371 tcell->states &= ~CNoSUID;
3372 afs_PutCell(tcell, WRITE_LOCK);
3377 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3381 * \param[in] ain not in use (args in avc)
3382 * \param[out] aout not in use
3384 * \retval EINVAL Error if some of the standard args aren't set
3385 * \retval EIO Error if the afs daemon hasn't started yet
3388 * Flush all cached contents of a volume. Exactly what stays and what
3389 * goes depends on the platform.
3392 * Does not flush a file that a user has open and is using, because
3393 * it will be re-created on next write. Also purges the dnlc,
3394 * because things are screwed up.
3396 DECL_PIOCTL(PFlushVolumeData)
3398 register afs_int32 i;
3399 register struct dcache *tdc;
3400 register struct vcache *tvc;
3401 register struct volume *tv;
3402 afs_int32 cell, volume;
3403 struct afs_q *tq, *uq;
3404 #ifdef AFS_DARWIN80_ENV
3408 AFS_STATCNT(PFlushVolumeData);
3411 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3412 return EIO; /* Inappropriate ioctl for device */
3414 volume = avc->f.fid.Fid.Volume; /* who to zap */
3415 cell = avc->f.fid.Cell;
3418 * Clear stat'd flag from all vnodes from this volume; this will
3419 * invalidate all the vcaches associated with the volume.
3422 ObtainReadLock(&afs_xvcache);
3423 i = VCHashV(&avc->f.fid);
3424 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3427 if (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell) {
3428 if (tvc->f.states & CVInit) {
3429 ReleaseReadLock(&afs_xvcache);
3430 afs_osi_Sleep(&tvc->f.states);
3433 #ifdef AFS_DARWIN80_ENV
3434 if (tvc->f.states & CDeadVnode) {
3435 if (!(tvc->f.states & CBulkFetching)) {
3436 ReleaseReadLock(&afs_xvcache);
3437 afs_osi_Sleep(&tvc->f.states);
3442 #if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_HPUX_ENV) || defined(AFS_LINUX20_ENV)
3443 VN_HOLD(AFSTOV(tvc));
3444 #elif defined(AFS_DARWIN80_ENV)
3448 if (vnode_ref(vp)) {
3454 if (tvc->f.states & (CBulkFetching|CDeadVnode)) {
3456 vnode_recycle(AFSTOV(tvc));
3462 ReleaseReadLock(&afs_xvcache);
3463 #ifdef AFS_BOZONLOCK_ENV
3464 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3466 ObtainWriteLock(&tvc->lock, 232);
3468 ObtainWriteLock(&afs_xcbhash, 458);
3469 afs_DequeueCallback(tvc);
3470 tvc->f.states &= ~(CStatd | CDirty);
3471 ReleaseWriteLock(&afs_xcbhash);
3472 if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
3473 osi_dnlc_purgedp(tvc);
3474 afs_TryToSmush(tvc, *acred, 1);
3475 ReleaseWriteLock(&tvc->lock);
3476 #ifdef AFS_BOZONLOCK_ENV
3477 afs_BozonUnlock(&tvc->pvnLock, tvc);
3479 #ifdef AFS_DARWIN80_ENV
3480 vnode_put(AFSTOV(tvc));
3482 ObtainReadLock(&afs_xvcache);
3484 /* our tvc ptr is still good until now */
3488 ReleaseReadLock(&afs_xvcache);
3491 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3492 for (i = 0; i < afs_cacheFiles; i++) {
3493 if (!(afs_indexFlags[i] & IFEverUsed))
3494 continue; /* never had any data */
3495 tdc = afs_GetDSlot(i, NULL);
3496 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3497 ReleaseReadLock(&tdc->tlock);
3498 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
3499 if (!(afs_indexFlags[i] & IFDataMod)) {
3500 /* if the file is modified, but has a ref cnt of only 1,
3501 * then someone probably has the file open and is writing
3502 * into it. Better to skip flushing such a file, it will be
3503 * brought back immediately on the next write anyway.
3505 * If we *must* flush, then this code has to be rearranged
3506 * to call afs_storeAllSegments() first */
3507 afs_FlushDCache(tdc);
3511 ReleaseReadLock(&tdc->tlock);
3513 afs_PutDCache(tdc); /* bumped by getdslot */
3515 ReleaseWriteLock(&afs_xdcache);
3517 ObtainReadLock(&afs_xvolume);
3518 for (i = 0; i < NVOLS; i++) {
3519 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3520 if (tv->volume == volume) {
3521 afs_ResetVolumeInfo(tv);
3526 ReleaseReadLock(&afs_xvolume);
3528 /* probably, a user is doing this, probably, because things are screwed up.
3529 * maybe it's the dnlc's fault? */
3536 * VIOCGETVCXSTATUS (41) - gets vnode x status
3541 * not in use (avc used)
3543 * vcxstat: the file id, the data version, any lock, the parent vnode,
3544 * the parent unique id, the trunc position, the callback, cbExpires,
3545 * what access is being made, what files are open,
3546 * any users executing/writing, the flock count, the states,
3550 * Error if some of the initial default arguments aren't set
3552 * Error if access to check the mode bits is denied
3555 * gets stats for the vnode, a struct listed in vcxstat
3557 DECL_PIOCTL(PGetVnodeXStatus)
3559 register afs_int32 code;
3560 struct vcxstat stat;
3563 /* AFS_STATCNT(PGetVnodeXStatus); */
3566 code = afs_VerifyVCache(avc, areq);
3569 if (vType(avc) == VDIR)
3570 mode = PRSFS_LOOKUP;
3573 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3576 memset(&stat, 0, sizeof(struct vcxstat));
3577 stat.fid = avc->f.fid;
3578 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3579 stat.lock = avc->lock;
3580 stat.parentVnode = avc->f.parent.vnode;
3581 stat.parentUnique = avc->f.parent.unique;
3582 hset(stat.flushDV, avc->flushDV);
3583 hset(stat.mapDV, avc->mapDV);
3584 stat.truncPos = avc->f.truncPos;
3585 { /* just grab the first two - won't break anything... */
3586 struct axscache *ac;
3588 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3589 stat.randomUid[i] = ac->uid;
3590 stat.randomAccess[i] = ac->axess;
3593 stat.callback = afs_data_pointer_to_int32(avc->callback);
3594 stat.cbExpires = avc->cbExpires;
3595 stat.anyAccess = avc->f.anyAccess;
3596 stat.opens = avc->opens;
3597 stat.execsOrWriters = avc->execsOrWriters;
3598 stat.flockCount = avc->flockCount;
3599 stat.mvstat = avc->mvstat;
3600 stat.states = avc->f.states;
3601 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3605 DECL_PIOCTL(PGetVnodeXStatus2)
3607 register afs_int32 code;
3608 struct vcxstat2 stat;
3613 code = afs_VerifyVCache(avc, areq);
3616 if (vType(avc) == VDIR)
3617 mode = PRSFS_LOOKUP;
3620 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3623 memset(&stat, 0, sizeof(struct vcxstat2));
3625 stat.cbExpires = avc->cbExpires;
3626 stat.anyAccess = avc->f.anyAccess;
3627 stat.mvstat = avc->mvstat;
3628 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3630 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3635 * VIOC_AFS_SYSNAME (38) - Change @sys value
3639 * \param[in] ain new value for @sys
3640 * \param[out] aout count, entry, list (debug values?)
3643 * Error if afsd isn't running, the new sysname is too large,
3644 * the new sysname causes issues (starts with a . or ..),
3645 * there is no PAG set in the credentials, or the user of a PAG
3648 * Error if the user doesn't have super-user credentials
3651 * Set the value of @sys if these things work: if the input isn't
3652 * too long or if input doesn't start with . or ..
3655 * We require root for local sysname changes, but not for remote
3656 * (since we don't really believe remote uids anyway)
3657 * outname[] shouldn't really be needed- this is left as an
3658 * exercise for the reader.
3660 DECL_PIOCTL(PSetSysName)
3662 char *inname = NULL;
3663 char outname[MAXSYSNAME];
3664 afs_int32 setsysname;
3666 register struct afs_exporter *exporter;
3667 register struct unixuser *au;
3668 register afs_int32 pag, error;
3669 int t, count, num = 0, allpags = 0;
3671 struct afs_pdata validate;
3673 AFS_STATCNT(PSetSysName);
3674 if (!afs_globalVFS) {
3675 /* Afsd is NOT running; disable it */
3676 #if defined(KERNEL_HAVE_UERROR)
3677 return (setuerror(EINVAL), EINVAL);
3682 if (afs_pd_getInt(ain, &setsysname) != 0)
3684 if (setsysname & 0x8000) {
3686 setsysname &= ~0x8000;
3691 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3694 for (count = 0; count < setsysname; count++) {
3695 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3698 if (t >= MAXSYSNAME || t <= 0)
3700 /* check for names that can shoot us in the foot */
3701 if (inname[0] == '.' && (inname[1] == 0
3702 || (inname[1] == '.' && inname[2] == 0)))
3705 /* args ok, so go back to the beginning of that section */
3707 if (afs_pd_getStringPtr(ain, &inname) != 0)
3711 if (afs_cr_gid(*acred) == RMTUSER_REQ ||
3712 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV) { /* Handles all exporters */
3713 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3716 pag = PagInCred(*acred);
3718 return EINVAL; /* Better than panicing */
3720 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3721 return EINVAL; /* Better than panicing */
3723 if (!(exporter = au->exporter)) {
3724 afs_PutUser(au, READ_LOCK);
3725 return EINVAL; /* Better than panicing */
3727 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3730 if (error == ENODEV)
3731 foundname = 0; /* sysname not set yet! */
3733 afs_PutUser(au, READ_LOCK);
3738 strcpy(outname, sysnamelist[0]);
3740 afs_PutUser(au, READ_LOCK);
3744 /* Not xlating, so local case */
3746 osi_Panic("PSetSysName: !afs_sysname\n");
3747 if (!setsysname) { /* user just wants the info */
3748 strcpy(outname, afs_sysname);
3749 foundname = afs_sysnamecount;
3750 sysnamelist = afs_sysnamelist;
3751 } else { /* Local guy; only root can change sysname */
3752 if (!afs_osi_suser(*acred))
3755 /* allpags makes no sense for local use */
3759 /* clear @sys entries from the dnlc, once afs_lookup can
3760 * do lookups of @sys entries and thinks it can trust them */
3761 /* privs ok, store the entry, ... */
3763 if (strlen(inname) >= MAXSYSNAME-1)
3765 strcpy(afs_sysname, inname);
3767 if (setsysname > 1) { /* ... or list */
3768 for (count = 1; count < setsysname; ++count) {
3769 if (!afs_sysnamelist[count])
3771 ("PSetSysName: no afs_sysnamelist entry to write\n");
3772 if (afs_pd_getString(ain, afs_sysnamelist[count],
3777 afs_sysnamecount = setsysname;
3782 if (afs_pd_putInt(aout, foundname) != 0)
3785 if (afs_pd_putString(aout, outname) != 0)
3787 for (count = 1; count < foundname; ++count) { /* ... or list. */
3788 if (!sysnamelist[count])
3790 ("PSetSysName: no afs_sysnamelist entry to read\n");
3791 t = strlen(sysnamelist[count]);
3792 if (t >= MAXSYSNAME)
3793 osi_Panic("PSetSysName: sysname entry garbled\n");
3794 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3802 /* sequential search through the list of touched cells is not a good
3803 * long-term solution here. For small n, though, it should be just
3804 * fine. Should consider special-casing the local cell for large n.
3805 * Likewise for PSetSPrefs.
3807 * s - number of ids in array l[] -- NOT index of last id
3808 * l - array of cell ids which have volumes that need to be sorted
3809 * vlonly - sort vl servers or file servers?
3812 ReSortCells_cb(struct cell *cell, void *arg)
3814 afs_int32 *p = (afs_int32 *) arg;
3815 afs_int32 *l = p + 1;
3818 for (i = 0; i < s; i++) {
3819 if (l[i] == cell->cellNum) {
3820 ObtainWriteLock(&cell->lock, 690);
3821 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3822 ReleaseWriteLock(&cell->lock);
3830 ReSortCells(int s, afs_int32 * l, int vlonly)
3838 p = (afs_int32 *) afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3840 memcpy(p + 1, l, s * sizeof(afs_int32));
3841 afs_TraverseCells(&ReSortCells_cb, p);
3842 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3846 ObtainReadLock(&afs_xvolume);
3847 for (i = 0; i < NVOLS; i++) {
3848 for (j = afs_volumes[i]; j; j = j->next) {
3849 for (k = 0; k < s; k++)
3850 if (j->cell == l[k]) {
3851 ObtainWriteLock(&j->lock, 233);
3852 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3853 ReleaseWriteLock(&j->lock);
3858 ReleaseReadLock(&afs_xvolume);
3862 static int debugsetsp = 0;
3864 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3867 int i, j, k, matches, touchedSize;
3868 struct server *srvr = NULL;
3869 afs_int32 touched[34];
3873 for (k = 0; k < num; sp++, k++) {
3875 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3878 ObtainReadLock(&afs_xserver);
3880 i = SHash(sp->host.s_addr);
3881 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3882 if (sa->sa_ip == sp->host.s_addr) {
3884 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3885 || (sa->sa_portal == AFS_FSPORT);
3886 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3893 if (sa && matches) { /* found one! */
3895 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3897 sa->sa_iprank = sp->rank + afs_randomMod15();
3898 afs_SortOneServer(sa->server);
3901 /* if we don't know yet what cell it's in, this is moot */
3902 for (j = touchedSize - 1;
3903 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
3904 /* is it in our list of touched cells ? */ ;
3905 if (j < 0) { /* no, it's not */
3906 touched[touchedSize++] = srvr->cell->cellNum;
3907 if (touchedSize >= 32) { /* watch for ovrflow */
3908 ReleaseReadLock(&afs_xserver);
3909 ReSortCells(touchedSize, touched, vlonly);
3911 ObtainReadLock(&afs_xserver);
3917 ReleaseReadLock(&afs_xserver);
3918 /* if we didn't find one, start to create one. */
3919 /* Note that it doesn't have a cell yet... */
3921 afs_uint32 temp = sp->host.s_addr;
3923 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
3924 WRITE_LOCK, (afsUUID *) 0, 0);
3925 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
3926 afs_PutServer(srvr, WRITE_LOCK);
3928 } /* for all cited preferences */
3930 ReSortCells(touchedSize, touched, vlonly);
3935 * VIOC_SETPREFS (46) - Set server ranks
3937 * \param[in] ain the sprefs value you want the sprefs to be set to
3938 * \param[out] aout not in use
3941 * Error if the afs daemon hasn't started yet
3943 * Error if the user doesn't have super-user credentials
3945 * Error if the struct setsprefs is too large or if it multiplied
3946 * by the number of servers is too large
3948 * \post set the sprefs using the afs_setsprefs() function
3950 DECL_PIOCTL(PSetSPrefs)
3952 struct setspref *ssp;
3956 AFS_STATCNT(PSetSPrefs);
3958 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3959 return EIO; /* Inappropriate ioctl for device */
3961 if (!afs_osi_suser(*acred))
3964 /* The I/O handling here is ghastly, as it relies on overrunning the ends
3965 * of arrays. But, i'm not quite brave enough to change it yet. */
3967 ainSize = ain->remaining;
3969 if (ainSize < sizeof(struct setspref))
3972 ssp = (struct setspref *)ainPtr;
3973 if (ainSize < (sizeof(struct setspref)
3974 + sizeof(struct spref) * ssp->num_servers-1))
3977 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
3978 (ssp->flags & DBservers));
3983 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
3985 * \param[in] ain the server preferences to be set
3986 * \param[out] aout not in use
3988 * \retval EIO Error if the afs daemon hasn't started yet
3989 * \retval EACCES Error if the user doesn't have super-user credentials
3991 * \post set the server preferences, calling a function
3993 * \notes this may only be performed by the local root user.
3995 DECL_PIOCTL(PSetSPrefs33)
3997 AFS_STATCNT(PSetSPrefs);
3998 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3999 return EIO; /* Inappropriate ioctl for device */
4002 if (!afs_osi_suser(*acred))
4005 afs_setsprefs((struct spref *)afs_pd_where(ain),
4006 afs_pd_remaining(ain) / sizeof(struct spref),
4012 * VIOC_GETSPREFS (43) - Get server ranks
4016 * \param[in] ain the server preferences to get
4017 * \param[out] aout the server preferences information
4019 * \retval EIO Error if the afs daemon hasn't started yet
4020 * \retval ENOENT Error if the sprefrequest is too large
4022 * \post Get the sprefs
4025 * in the hash table of server structs, all servers with the same
4026 * IP address; will be on the same overflow chain; This could be
4027 * sped slightly in some circumstances by having it cache the
4028 * immediately previous slot in the hash table and some
4029 * supporting information; Only reports file servers now.
4031 DECL_PIOCTL(PGetSPrefs)
4033 struct sprefrequest spin; /* input */
4034 struct sprefinfo *spout; /* output */
4035 struct spref *srvout; /* one output component */
4036 int i, j; /* counters for hash table traversal */
4037 struct server *srvr; /* one of CM's server structs */
4039 int vlonly; /* just return vlservers ? */
4042 AFS_STATCNT(PGetSPrefs);
4043 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4044 return EIO; /* Inappropriate ioctl for device */
4046 /* Work out from the size whether we've got a new, or old, style pioctl */
4047 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4048 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4053 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4055 vlonly = (spin.flags & DBservers);
4058 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4059 * quite brave enough to tackle it yet ...
4062 /* struct sprefinfo includes 1 server struct... that size gets added
4063 * in during the loop that follows.
4065 spout = afs_pd_inline(aout,
4066 sizeof(struct sprefinfo) - sizeof(struct spref));
4067 spout->next_offset = spin.offset;
4068 spout->num_servers = 0;
4069 srvout = spout->servers;
4071 ObtainReadLock(&afs_xserver);
4072 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4073 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4074 if (spin.offset > (unsigned short)i) {
4075 continue; /* catch up to where we left off */
4077 spout->next_offset++;
4080 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4081 || (sa->sa_portal == AFS_FSPORT);
4083 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4084 /* only report ranks for vl servers */
4088 /* Check we've actually got the space we're about to use */
4089 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4090 ReleaseReadLock(&afs_xserver); /* no more room! */
4094 srvout->host.s_addr = sa->sa_ip;
4095 srvout->rank = sa->sa_iprank;
4096 spout->num_servers++;
4100 ReleaseReadLock(&afs_xserver);
4102 spout->next_offset = 0; /* start over from the beginning next time */
4107 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4108 int afs_NFSRootOnly = 1;
4110 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4115 * an integer containing the desired exportee flags
4117 * an integer containing the current exporter flags
4119 * \retval ENODEV Error if the exporter doesn't exist
4120 * \retval EACCES Error if the user doesn't have super-user credentials
4123 * Changes the state of various values to reflect the change
4124 * of the export values between nfs and afs.
4126 * \notes Legacy code obtained from IBM.
4128 DECL_PIOCTL(PExportAfs)
4130 afs_int32 export, newint = 0;
4131 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4132 afs_int32 rempags = 0, pagcb = 0;
4133 register struct afs_exporter *exporter;
4135 AFS_STATCNT(PExportAfs);
4136 if (afs_pd_getInt(ain, &handleValue) != 0)
4138 type = handleValue >> 24;
4143 exporter = exporter_find(type);
4145 export = handleValue & 3;
4146 changestate = handleValue & 0xfff;
4147 smounts = (handleValue >> 2) & 3;
4148 pwsync = (handleValue >> 4) & 3;
4149 convmode = (handleValue >> 6) & 3;
4150 rempags = (handleValue >> 8) & 3;
4151 pagcb = (handleValue >> 10) & 3;
4153 changestate = (handleValue >> 16) & 0x1;
4154 convmode = (handleValue >> 16) & 0x2;
4155 pwsync = (handleValue >> 16) & 0x4;
4156 smounts = (handleValue >> 16) & 0x8;
4157 export = handleValue & 0xff;
4160 /* Failed finding desired exporter; */
4164 handleValue = exporter->exp_states;
4165 if (afs_pd_putInt(aout, handleValue) != 0)
4168 if (!afs_osi_suser(*acred))
4169 return EACCES; /* Only superuser can do this */
4173 exporter->exp_states |= EXP_EXPORTED;
4175 exporter->exp_states &= ~EXP_EXPORTED;
4179 exporter->exp_states |= EXP_UNIXMODE;
4181 exporter->exp_states &= ~EXP_UNIXMODE;
4185 exporter->exp_states |= EXP_PWSYNC;
4187 exporter->exp_states &= ~EXP_PWSYNC;
4191 afs_NFSRootOnly = 0;
4192 exporter->exp_states |= EXP_SUBMOUNTS;
4194 afs_NFSRootOnly = 1;
4195 exporter->exp_states &= ~EXP_SUBMOUNTS;
4200 exporter->exp_states |= EXP_CLIPAGS;
4202 exporter->exp_states &= ~EXP_CLIPAGS;
4206 exporter->exp_states |= EXP_CALLBACK;
4208 exporter->exp_states &= ~EXP_CALLBACK;
4210 handleValue = exporter->exp_states;
4211 if (afs_pd_putInt(aout, handleValue) != 0)
4215 exporter->exp_states |= EXP_EXPORTED;
4217 exporter->exp_states &= ~EXP_EXPORTED;
4219 exporter->exp_states |= EXP_UNIXMODE;
4221 exporter->exp_states &= ~EXP_UNIXMODE;
4223 exporter->exp_states |= EXP_PWSYNC;
4225 exporter->exp_states &= ~EXP_PWSYNC;
4227 afs_NFSRootOnly = 0;
4228 exporter->exp_states |= EXP_SUBMOUNTS;
4230 afs_NFSRootOnly = 1;
4231 exporter->exp_states &= ~EXP_SUBMOUNTS;
4240 * VIOC_GAG (44) - Silence Cache Manager
4244 * \param[in] ain the flags to either gag or de-gag the cache manager
4245 * \param[out] aout not in use
4247 * \retval EACCES Error if the user doesn't have super-user credentials
4249 * \post set the gag flags, then show these flags
4253 struct gaginfo *gagflags;
4255 if (!afs_osi_suser(*acred))
4258 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4259 if (gagflags == NULL)
4261 afs_showflags = gagflags->showflags;
4267 * VIOC_TWIDDLE (45) - Adjust RX knobs
4271 * \param[in] ain the previous settings of the 'knobs'
4272 * \param[out] aout not in use
4274 * \retval EACCES Error if the user doesn't have super-user credentials
4276 * \post build out the struct rxp, from a struct rx
4278 DECL_PIOCTL(PTwiddleRx)
4280 struct rxparams *rxp;
4282 if (!afs_osi_suser(*acred))
4285 rxp = afs_pd_inline(ain, sizeof(*rxp));
4289 if (rxp->rx_initReceiveWindow)
4290 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4291 if (rxp->rx_maxReceiveWindow)
4292 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4293 if (rxp->rx_initSendWindow)
4294 rx_initSendWindow = rxp->rx_initSendWindow;
4295 if (rxp->rx_maxSendWindow)
4296 rx_maxSendWindow = rxp->rx_maxSendWindow;
4297 if (rxp->rxi_nSendFrags)
4298 rxi_nSendFrags = rxp->rxi_nSendFrags;
4299 if (rxp->rxi_nRecvFrags)
4300 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4301 if (rxp->rxi_OrphanFragSize)
4302 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4303 if (rxp->rx_maxReceiveSize) {
4304 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4305 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4307 if (rxp->rx_MyMaxSendSize)
4308 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4314 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4318 * \param[in] ain not in use
4319 * \param[out] aout initial cache manager params
4322 * Error if the initial parameters are bigger than some PIGGYSIZE
4324 * \post return the initial cache manager parameters
4326 DECL_PIOCTL(PGetInitParams)
4328 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4331 return afs_pd_putBytes(aout, &cm_initParams,
4332 sizeof(struct cm_initparams));
4336 #ifdef AFS_SGI65_ENV
4337 /* They took crget() from us, so fake it. */
4342 cr = crdup(get_current_cred());
4343 memset(cr, 0, sizeof(cred_t));
4344 #if CELL || CELL_PREPARE
4352 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4356 * \param[in] ain not in use
4357 * \param[out] aout value of cryptall
4359 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4361 DECL_PIOCTL(PGetRxkcrypt)
4363 return afs_pd_putInt(aout, cryptall);
4367 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4371 * \param[in] ain the argument whether or not things should be encrypted
4372 * \param[out] aout not in use
4375 * Error if the user doesn't have super-user credentials
4377 * Error if the input is too big, or if the input is outside the
4378 * bounds of what it can be set to
4380 * \post set whether or not things should be encrypted
4383 * may need to be modified at a later date to take into account
4384 * other values for cryptall (beyond true or false)
4386 DECL_PIOCTL(PSetRxkcrypt)
4390 if (!afs_osi_suser(*acred))
4392 if (afs_pd_getInt(ain, &tmpval) != 0)
4394 /* if new mappings added later this will need to be changed */
4395 if (tmpval != 0 && tmpval != 1)
4401 #ifdef AFS_NEED_CLIENTCONTEXT
4403 * Create new credentials to correspond to a remote user with given
4404 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4405 * provide pioctl (and other) services to foreign clients (i.e. nfs
4406 * clients) by using this call to `become' the client.
4409 #define PIOCTL_HEADER 6
4411 HandleClientContext(struct afs_ioctl *ablob, int *com,
4412 afs_ucred_t **acred, afs_ucred_t *credp)
4415 afs_uint32 hostaddr;
4416 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4417 struct afs_exporter *exporter, *outexporter;
4418 afs_ucred_t *newcred;
4419 struct unixuser *au;
4420 afs_uint32 comp = *com & 0xff00;
4422 #if defined(AFS_SUN510_ENV)
4426 #if defined(AFS_SGIMP_ENV)
4427 osi_Assert(ISAFS_GLOCK());
4429 AFS_STATCNT(HandleClientContext);
4430 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4431 /* Must at least include the PIOCTL_HEADER header words
4432 * required by the protocol */
4433 return EINVAL; /* Too small to be good */
4435 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4436 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4438 osi_FreeLargeSpace(inData);
4442 /* Extract information for remote user */
4443 hostaddr = *((afs_uint32 *) ain);
4444 ain += sizeof(hostaddr);
4445 uid = *((afs_uint32 *) ain);
4447 g0 = *((afs_uint32 *) ain);
4449 g1 = *((afs_uint32 *) ain);
4451 *com = *((afs_uint32 *) ain);
4452 ain += sizeof(afs_int32);
4453 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4456 * Of course, one must be root for most of these functions, but
4457 * we'll allow (for knfs) you to set things if the pag is 0 and
4458 * you're setting tokens or unlogging.
4461 if (!afs_osi_suser(credp)) {
4462 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4463 /* Since SGI's suser() returns explicit failure after the call.. */
4466 /* check for acceptable opcodes for normal folks, which are, so far,
4467 * get/set tokens, sysname, and unlog.
4469 if (i != 9 && i != 3 && i != 38 && i != 8) {
4470 osi_FreeLargeSpace(inData);
4475 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4476 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4477 osi_FreeLargeSpace(inData);
4480 * We map uid 0 to nobody to match the mapping that the nfs
4481 * server does and to ensure that the suser() calls in the afs
4482 * code fails for remote client roots.
4484 uid = afs_nobody; /* NFS_NOBODY == -2 */
4488 #ifdef AFS_AIX41_ENV
4491 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4492 #ifdef AFS_AIX51_ENV
4493 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4494 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4495 #elif defined(AFS_LINUX26_ENV)
4496 # ifdef AFS_LINUX26_ONEGROUP_ENV
4497 set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4498 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4499 h = ((g0-0x3f00) >> 14);
4500 h = ((g1-0x3f00) >> 14) + h + h + h;
4501 GROUP_AT(cr_group_info(newcred), 0) = ((h << 28) | l);
4503 set_cr_group_info(newcred, groups_alloc(2));
4504 GROUP_AT(cr_group_info(newcred), 0) = g0;
4505 GROUP_AT(cr_group_info(newcred), 1) = g1;
4507 #elif defined(AFS_SUN510_ENV)
4510 crsetgroups(newcred, 2, gids);
4512 newcred->cr_groups[0] = g0;
4513 newcred->cr_groups[1] = g1;
4516 newcred->cr_ngrps = 2;
4517 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4518 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4519 newcred->cr_ngroups = 2;
4521 for (i = 2; i < NGROUPS; i++)
4522 newcred->cr_groups[i] = NOGROUP;
4525 if (!(exporter = exporter_find(exporter_type))) {
4526 /* Exporter wasn't initialized or an invalid exporter type */
4530 if (exporter->exp_states & EXP_PWSYNC) {
4531 if (uid != afs_cr_uid(credp)) {
4533 return ENOEXEC; /* XXX Find a better errno XXX */
4536 afs_set_cr_uid(newcred, uid); /* Only temporary */
4537 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4538 /* The client's pag is the only unique identifier for it */
4539 afs_set_cr_uid(newcred, pag);
4541 if (!code && *com == PSETPAG) {
4542 /* Special case for 'setpag' */
4543 afs_uint32 pagvalue = genpag();
4545 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4547 * Note that we leave the 'outexporter' struct held so it won't
4550 au->exporter = outexporter;
4551 if (ablob->out_size >= 4) {
4552 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4555 afs_PutUser(au, WRITE_LOCK);
4558 return PSETPAG; /* Special return for setpag */
4560 EXP_RELE(outexporter);
4563 *com = (*com) | comp;
4566 #endif /* AFS_NEED_CLIENTCONTEXT */
4570 * VIOC_GETCPREFS (50) - Get client interface
4574 * \param[in] ain sprefrequest input
4575 * \param[out] aout spref information
4577 * \retval EIO Error if the afs daemon hasn't started yet
4578 * \retval EINVAL Error if some of the standard args aren't set
4581 * get all interface addresses and other information of the client
4584 DECL_PIOCTL(PGetCPrefs)
4586 struct sprefrequest *spin; /* input */
4587 struct sprefinfo *spout; /* output */
4588 struct spref *srvout; /* one output component */
4592 AFS_STATCNT(PGetCPrefs);
4593 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4594 return EIO; /* Inappropriate ioctl for device */
4596 spin = afs_pd_inline(ain, sizeof(*spin));
4600 /* Output spout relies on writing past the end of arrays. It's horrible,
4601 * but I'm not quite brave enough to tackle it yet */
4602 spout = (struct sprefinfo *)aout->ptr;
4604 maxNumber = spin->num_servers; /* max addrs this time */
4605 srvout = spout->servers;
4607 ObtainReadLock(&afs_xinterface);
4609 /* copy out the client interface information from the
4610 * kernel data structure "interface" to the output buffer
4612 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4613 && (j < maxNumber); i++, j++, srvout++)
4614 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4616 spout->num_servers = j;
4617 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4619 if (i >= afs_cb_interface.numberOfInterfaces)
4620 spout->next_offset = 0; /* start from beginning again */
4622 spout->next_offset = spin->offset + j;
4624 ReleaseReadLock(&afs_xinterface);
4629 * VIOC_SETCPREFS (51) - Set client interface
4633 * \param[in] ain the interfaces you want set
4634 * \param[out] aout not in use
4636 * \retval EIO Error if the afs daemon hasn't started yet
4637 * \retval EINVAL Error if the input is too large for the struct
4638 * \retval ENOMEM Error if there are too many servers
4640 * \post set the callbak interfaces addresses to those of the hosts
4642 DECL_PIOCTL(PSetCPrefs)
4646 struct setspref *sin;
4649 AFS_STATCNT(PSetCPrefs);
4650 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4651 return EIO; /* Inappropriate ioctl for device */
4653 /* Yuck. Input to this function relies on reading past the end of
4654 * structures. Bodge it for now.
4657 ainSize = ain->remaining;
4659 sin = (struct setspref *)ainPtr;
4661 if (ainSize < sizeof(struct setspref))
4663 #if 0 /* num_servers is unsigned */
4664 if (sin->num_servers < 0)
4667 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4670 ObtainWriteLock(&afs_xinterface, 412);
4671 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4672 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4673 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4675 ReleaseWriteLock(&afs_xinterface);
4680 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4685 * the last part of a path to a mount point, which tells us what to flush
4690 * Error if some of the initial arguments aren't set
4692 * Error if the initial argument for the mount point isn't a directory
4694 * Error if the dcache entry isn't set
4697 * remove all of the mount data from the dcache regarding a
4698 * certain mount point
4700 DECL_PIOCTL(PFlushMount)
4702 register afs_int32 code;
4703 register struct vcache *tvc;
4704 register struct dcache *tdc;
4705 struct VenusFid tfid;
4708 struct sysname_info sysState;
4709 afs_size_t offset, len;
4711 AFS_STATCNT(PFlushMount);
4715 if (afs_pd_getStringPtr(ain, &mount) != 0)
4718 code = afs_VerifyVCache(avc, areq);
4721 if (vType(avc) != VDIR) {
4724 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4727 Check_AtSys(avc, mount, &sysState, areq);
4728 ObtainReadLock(&tdc->lock);
4730 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4731 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4732 ReleaseReadLock(&tdc->lock);
4733 afs_PutDCache(tdc); /* we're done with the data */
4734 bufp = sysState.name;
4738 tfid.Cell = avc->f.fid.Cell;
4739 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4740 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4741 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4743 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4749 if (tvc->mvstat != 1) {
4754 #ifdef AFS_BOZONLOCK_ENV
4755 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4757 ObtainWriteLock(&tvc->lock, 649);
4758 ObtainWriteLock(&afs_xcbhash, 650);
4759 afs_DequeueCallback(tvc);
4760 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4761 ReleaseWriteLock(&afs_xcbhash);
4762 /* now find the disk cache entries */
4763 afs_TryToSmush(tvc, *acred, 1);
4764 osi_dnlc_purgedp(tvc);
4765 if (tvc->linkData && !(tvc->f.states & CCore)) {
4766 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4767 tvc->linkData = NULL;
4769 ReleaseWriteLock(&tvc->lock);
4770 #ifdef AFS_BOZONLOCK_ENV
4771 afs_BozonUnlock(&tvc->pvnLock, tvc);
4775 if (sysState.allocked)
4776 osi_FreeLargeSpace(bufp);
4781 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4785 * \param[in] ain the flags that control which stats to use
4786 * \param[out] aout not in use
4788 * \retval EACCES Error if the user doesn't have super-user credentials
4789 * \retval EINVAL Error if the flag input is too long
4792 * either enable process RPCStats, disable process RPCStats,
4793 * or clear the process RPCStats
4795 DECL_PIOCTL(PRxStatProc)
4799 if (!afs_osi_suser(*acred))
4802 if (afs_pd_getInt(ain, &flags) != 0)
4805 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4808 if (flags & AFSCALL_RXSTATS_ENABLE) {
4809 rx_enableProcessRPCStats();
4811 if (flags & AFSCALL_RXSTATS_DISABLE) {
4812 rx_disableProcessRPCStats();
4814 if (flags & AFSCALL_RXSTATS_CLEAR) {
4815 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4822 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4826 * \param[in] ain the flags that control which statistics to use
4827 * \param[out] aout not in use
4829 * \retval EACCES Error if the user doesn't have super-user credentials
4830 * \retval EINVAL Error if the flag input is too long
4833 * either enable peer RPCStatws, disable peer RPCStats,
4834 * or clear the peer RPCStats
4836 DECL_PIOCTL(PRxStatPeer)
4840 if (!afs_osi_suser(*acred))
4843 if (afs_pd_getInt(ain, &flags) != 0)
4846 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4849 if (flags & AFSCALL_RXSTATS_ENABLE) {
4850 rx_enablePeerRPCStats();
4852 if (flags & AFSCALL_RXSTATS_DISABLE) {
4853 rx_disablePeerRPCStats();
4855 if (flags & AFSCALL_RXSTATS_CLEAR) {
4856 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4861 DECL_PIOCTL(PPrefetchFromTape)
4863 register afs_int32 code, code1;
4864 afs_int32 bytes, outval;
4865 struct afs_conn *tc;
4866 struct rx_call *tcall;
4867 struct AFSVolSync tsync;
4868 struct AFSFetchStatus OutStatus;
4869 struct AFSCallBack CallBack;
4870 struct VenusFid tfid;
4874 AFS_STATCNT(PSetAcl);
4878 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4880 Fid = &avc->f.fid.Fid;
4882 tfid.Cell = avc->f.fid.Cell;
4883 tfid.Fid.Volume = Fid->Volume;
4884 tfid.Fid.Vnode = Fid->Vnode;
4885 tfid.Fid.Unique = Fid->Unique;
4887 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4889 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4890 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4893 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4894 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4897 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK);
4901 tcall = rx_NewCall(tc->id);
4903 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4906 bytes = rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
4908 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
4910 code1 = rx_EndCall(tcall, code);
4914 } while (afs_Analyze
4915 (tc, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
4916 SHARED_LOCK, NULL));
4917 /* This call is done only to have the callback things handled correctly */
4918 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
4924 return afs_pd_putInt(aout, outval);
4929 register afs_int32 code;
4930 struct afs_conn *tc;
4932 struct FsCmdInputs *Inputs;
4933 struct FsCmdOutputs *Outputs;
4934 struct VenusFid tfid;
4940 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
4944 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
4945 if (Outputs == NULL)
4950 Fid = &avc->f.fid.Fid;
4952 tfid.Cell = avc->f.fid.Cell;
4953 tfid.Fid.Volume = Fid->Volume;
4954 tfid.Fid.Vnode = Fid->Vnode;
4955 tfid.Fid.Unique = Fid->Unique;
4957 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4958 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
4959 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
4963 if (Inputs->command) {
4965 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK);
4969 RXAFS_FsCmd(tc->id, Fid, Inputs,
4970 (struct FsCmdOutputs *)aout);
4974 } while (afs_Analyze
4975 (tc, code, &tvc->f.fid, areq,
4976 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
4977 /* This call is done to have the callback things handled correctly */
4978 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
4979 } else { /* just a status request, return also link data */
4981 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
4982 Outputs->chars[0] = 0;
4983 if (vType(tvc) == VLNK) {
4984 ObtainWriteLock(&tvc->lock, 555);
4985 if (afs_HandleLink(tvc, areq) == 0)
4986 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
4987 ReleaseWriteLock(&tvc->lock);
4996 DECL_PIOCTL(PNewUuid)
4998 /*AFS_STATCNT(PNewUuid); */
4999 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5000 return EIO; /* Inappropriate ioctl for device */
5002 if (!afs_osi_suser(*acred))
5005 ObtainWriteLock(&afs_xinterface, 555);
5006 afs_uuid_create(&afs_cb_interface.uuid);
5007 ReleaseWriteLock(&afs_xinterface);
5008 ForceAllNewConnections();
5012 #if defined(AFS_CACHE_BYPASS)
5014 DECL_PIOCTL(PSetCachingThreshold)
5016 afs_int32 getting = 1;
5017 afs_int32 setting = 1;
5018 afs_int32 threshold;
5020 if (afs_pd_getInt(ain, &threshold) != 0)
5026 if (setting == 0 && getting == 0)
5030 * If setting, set first, and return the value now in effect
5033 if (!afs_osi_suser(*acred))
5035 cache_bypass_threshold = threshold;
5036 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5037 /* TODO: move to separate pioctl, or enhance pioctl */
5038 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5041 /* Return the current size threshold */
5043 return afs_pd_putInt(aout, cache_bypass_threshold);
5048 #endif /* defined(AFS_CACHE_BYPASS) */
5050 DECL_PIOCTL(PCallBackAddr)
5053 afs_uint32 addr, code;
5057 struct afs_conn *tc;
5059 struct unixuser *tu;
5060 struct srvAddr **addrs;
5062 /*AFS_STATCNT(PCallBackAddr); */
5063 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5064 return EIO; /* Inappropriate ioctl for device */
5066 if (!afs_osi_suser(acred))
5069 if (afs_pd_getInt(ain, &addr) != 0)
5072 ObtainReadLock(&afs_xinterface);
5073 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5074 if (afs_cb_interface.addr_in[i] == addr)
5078 ReleaseWriteLock(&afs_xinterface);
5080 if (afs_cb_interface.addr_in[i] != addr)
5083 ObtainReadLock(&afs_xserver); /* Necessary? */
5084 ObtainReadLock(&afs_xsrvAddr);
5087 for (i = 0; i < NSERVERS; i++) {
5088 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5093 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5095 for (i = 0; i < NSERVERS; i++) {
5096 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5097 if (j >= srvAddrCount)
5103 ReleaseReadLock(&afs_xsrvAddr);
5104 ReleaseReadLock(&afs_xserver);
5106 for (i = 0; i < j; i++) {
5112 /* vlserver has no callback conn */
5113 if (sa->sa_portal == AFS_VLPORT) {
5117 if (!ts->cell) /* not really an active server, anyway, it must */
5118 continue; /* have just been added by setsprefs */
5120 /* get a connection, even if host is down; bumps conn ref count */
5121 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5122 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5123 1 /*force */ , 1 /*create */ , SHARED_LOCK);
5124 afs_PutUser(tu, SHARED_LOCK);
5128 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5129 if (sa->sa_flags & SRVADDR_ISDOWN) {
5130 rx_SetConnDeadTime(tc->id, 3);
5132 #ifdef RX_ENABLE_LOCKS
5134 #endif /* RX_ENABLE_LOCKS */
5135 code = RXAFS_CallBackRxConnAddr(tc->id, &addr);
5136 #ifdef RX_ENABLE_LOCKS
5138 #endif /* RX_ENABLE_LOCKS */
5140 afs_PutConn(tc, SHARED_LOCK); /* done with it now */
5141 } /* Outer loop over addrs */
5142 #endif /* UKERNEL */
5146 DECL_PIOCTL(PDiscon)
5148 #ifdef AFS_DISCON_ENV
5149 static afs_int32 mode = 1; /* Start up in 'off' */
5150 afs_int32 force = 0;
5154 if (afs_pd_getBytes(ain, &flags, 3) == 0) {
5155 if (!afs_osi_suser(*acred))
5159 mode = flags[0] - 1;
5161 afs_ConflictPolicy = flags[1] - 1;
5166 * All of these numbers are hard coded in fs.c. If they
5167 * change here, they should change there and vice versa
5170 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5171 if (!AFS_IS_DISCONNECTED) {
5172 ObtainWriteLock(&afs_discon_lock, 999);
5173 afs_DisconGiveUpCallbacks();
5174 afs_RemoveAllConns();
5175 afs_is_disconnected = 1;
5176 afs_is_discon_rw = 1;
5177 ReleaseWriteLock(&afs_discon_lock);
5180 case 1: /* Fully connected, ("online" mode). */
5181 ObtainWriteLock(&afs_discon_lock, 998);
5184 afs_MarkAllServersUp();
5185 code = afs_ResyncDisconFiles(areq, *acred);
5188 if (code && !force) {
5189 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5190 "Please retry or use \"force\".\n");
5194 afs_DisconDiscardAll(*acred);
5196 afs_ClearAllStatdFlag();
5197 afs_is_disconnected = 0;
5198 afs_is_discon_rw = 0;
5199 afs_warnuser("\nSync succeeded. You are back online.\n");
5202 ReleaseWriteLock(&afs_discon_lock);
5214 return afs_pd_putInt(aout, mode);
5220 DECL_PIOCTL(PNFSNukeCreds)
5223 register afs_int32 i;
5224 register struct unixuser *tu;
5226 AFS_STATCNT(PUnlog);
5227 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5228 return EIO; /* Inappropriate ioctl for device */
5230 if (afs_pd_getUint(ain, &addr) != 0)
5233 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5234 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5235 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5236 afs_PutUser(tu, SHARED_LOCK);
5239 afs_PutUser(tu, SHARED_LOCK);
5240 } else if (!afs_osi_suser(acred)) {
5244 ObtainWriteLock(&afs_xuser, 227);
5245 for (i = 0; i < NUSERS; i++) {
5246 for (tu = afs_users[i]; tu; tu = tu->next) {
5247 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5249 tu->states &= ~UHasTokens;
5250 /* security is not having to say you're sorry */
5251 memset(&tu->ct, 0, sizeof(struct ClearToken));
5253 ReleaseWriteLock(&afs_xuser);
5254 afs_ResetUserConns(tu);
5256 ObtainWriteLock(&afs_xuser, 228);
5258 /* set the expire times to 0, causes
5259 * afs_GCUserData to remove this entry
5261 tu->ct.EndTimestamp = 0;
5263 #endif /* UKERNEL */
5267 ReleaseWriteLock(&afs_xuser);