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"
22 #include <sys/ioctl.h>
23 #include <sys/ioccom.h>
25 #include "afsincludes.h" /* Afs-based standard headers */
26 #include "afs/afs_stats.h" /* afs statistics */
28 #include "afs/afs_bypasscache.h"
29 #include "rx/rx_globals.h"
32 extern int afs_rmtsys_enable;
33 struct VenusFid afs_rootFid;
34 afs_int32 afs_waitForever = 0;
35 short afs_waitForeverCount = 0;
36 afs_int32 afs_showflags = GAGUSER | GAGCONSOLE; /* show all messages */
38 afs_int32 afs_is_disconnected;
39 afs_int32 afs_is_discon_rw;
40 /* On reconnection, turn this knob on until it finishes,
43 afs_int32 afs_in_sync = 0;
51 * A set of handy little functions for encoding and decoding
52 * pioctls without losing your marbles, or memory integrity
56 afs_pd_alloc(struct afs_pdata *apd, size_t size)
59 if (size > AFS_LRALLOCSIZ)
60 apd->ptr = osi_Alloc(size + 1);
62 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
67 apd->remaining = size;
73 afs_pd_free(struct afs_pdata *apd)
78 if (apd->remaining > AFS_LRALLOCSIZ)
79 osi_Free(apd->ptr, apd->remaining + 1);
81 osi_FreeLargeSpace(apd->ptr);
88 afs_pd_where(struct afs_pdata *apd)
90 return apd ? apd->ptr : NULL;
94 afs_pd_remaining(struct afs_pdata *apd)
96 return apd ? apd->remaining : 0;
100 afs_pd_skip(struct afs_pdata *apd, size_t skip)
102 if (apd == NULL || apd->remaining < skip)
104 apd->remaining -= skip;
111 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
113 if (apd == NULL || apd->remaining < bytes)
115 apd->remaining -= bytes;
116 memcpy(dest, apd->ptr, bytes);
122 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
124 return afs_pd_getBytes(apd, val, sizeof(*val));
128 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
130 return afs_pd_getBytes(apd, val, sizeof(*val));
134 afs_pd_inline(struct afs_pdata *apd, size_t bytes)
138 if (apd == NULL || apd->remaining < bytes)
143 apd->remaining -= bytes;
150 afs_pd_xdrStart(struct afs_pdata *apd, XDR *xdrs, enum xdr_op op) {
151 xdrmem_create(xdrs, apd->ptr, apd->remaining, op);
155 afs_pd_xdrEnd(struct afs_pdata *apd, XDR *xdrs) {
158 pos = xdr_getpos(xdrs);
160 apd->remaining -= pos;
167 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
171 if (apd == NULL || apd->remaining <= 0)
173 len = strlen(apd->ptr) + 1;
176 memcpy(str, apd->ptr, len);
178 apd->remaining -= len;
183 afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
187 if (apd == NULL || apd->remaining <= 0)
189 len = strlen(apd->ptr) + 1;
192 apd->remaining -= len;
197 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
199 if (apd == NULL || apd->remaining < len)
201 memcpy(apd->ptr, bytes, len);
203 apd->remaining -= len;
208 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
210 return afs_pd_putBytes(apd, &val, sizeof(val));
214 afs_pd_putString(struct afs_pdata *apd, char *str) {
216 /* Add 1 so we copy the NULL too */
217 return afs_pd_putBytes(apd, str, strlen(str) +1);
221 * \defgroup pioctl Path IOCTL functions
223 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
226 * the AFS vcache structure in use by pioctl
230 * the AFS vrequest structure
232 * an afs_pdata block describing the data received from the caller
234 * an afs_pdata block describing a pre-allocated block for output
236 * UNIX credentials structure underlying the operation
239 #define DECL_PIOCTL(x) \
240 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
241 struct afs_pdata *ain, struct afs_pdata *aout, \
244 /* Prototypes for pioctl routines */
245 DECL_PIOCTL(PGetFID);
246 DECL_PIOCTL(PSetAcl);
247 DECL_PIOCTL(PStoreBehind);
248 DECL_PIOCTL(PGCPAGs);
249 DECL_PIOCTL(PGetAcl);
252 DECL_PIOCTL(PGetFileCell);
253 DECL_PIOCTL(PGetWSCell);
254 DECL_PIOCTL(PGetUserCell);
255 DECL_PIOCTL(PSetTokens);
256 DECL_PIOCTL(PSetTokens2);
257 DECL_PIOCTL(PGetVolumeStatus);
258 DECL_PIOCTL(PSetVolumeStatus);
260 DECL_PIOCTL(PNewStatMount);
261 DECL_PIOCTL(PGetTokens);
262 DECL_PIOCTL(PGetTokens2);
264 DECL_PIOCTL(PMariner);
265 DECL_PIOCTL(PCheckServers);
266 DECL_PIOCTL(PCheckVolNames);
267 DECL_PIOCTL(PCheckAuth);
268 DECL_PIOCTL(PFindVolume);
269 DECL_PIOCTL(PViceAccess);
270 DECL_PIOCTL(PSetCacheSize);
271 DECL_PIOCTL(PGetCacheSize);
272 DECL_PIOCTL(PRemoveCallBack);
273 DECL_PIOCTL(PNewCell);
274 DECL_PIOCTL(PNewAlias);
275 DECL_PIOCTL(PListCells);
276 DECL_PIOCTL(PListAliases);
277 DECL_PIOCTL(PRemoveMount);
278 DECL_PIOCTL(PGetCellStatus);
279 DECL_PIOCTL(PSetCellStatus);
280 DECL_PIOCTL(PFlushVolumeData);
281 DECL_PIOCTL(PFlushAllVolumeData);
282 DECL_PIOCTL(PGetVnodeXStatus);
283 DECL_PIOCTL(PGetVnodeXStatus2);
284 DECL_PIOCTL(PSetSysName);
285 DECL_PIOCTL(PSetSPrefs);
286 DECL_PIOCTL(PSetSPrefs33);
287 DECL_PIOCTL(PGetSPrefs);
288 DECL_PIOCTL(PExportAfs);
290 DECL_PIOCTL(PTwiddleRx);
291 DECL_PIOCTL(PGetInitParams);
292 DECL_PIOCTL(PGetRxkcrypt);
293 DECL_PIOCTL(PSetRxkcrypt);
294 DECL_PIOCTL(PGetCPrefs);
295 DECL_PIOCTL(PSetCPrefs);
296 DECL_PIOCTL(PFlushMount);
297 DECL_PIOCTL(PRxStatProc);
298 DECL_PIOCTL(PRxStatPeer);
299 DECL_PIOCTL(PPrefetchFromTape);
301 DECL_PIOCTL(PCallBackAddr);
302 DECL_PIOCTL(PDiscon);
303 DECL_PIOCTL(PNFSNukeCreds);
304 DECL_PIOCTL(PNewUuid);
305 DECL_PIOCTL(PPrecache);
306 DECL_PIOCTL(PGetPAG);
307 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
308 DECL_PIOCTL(PSetCachingThreshold);
312 * A macro that says whether we're going to need HandleClientContext().
313 * This is currently used only by the nfs translator.
315 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
316 #define AFS_NEED_CLIENTCONTEXT
319 /* Prototypes for private routines */
320 #ifdef AFS_NEED_CLIENTCONTEXT
321 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
325 int HandleIoctl(struct vcache *avc, afs_int32 acom,
326 struct afs_ioctl *adata);
327 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
328 struct afs_ioctl *ablob, int afollow,
329 afs_ucred_t **acred);
330 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
333 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
334 struct afs_pdata *, struct afs_pdata *,
337 static pioctlFunction VpioctlSw[] = {
342 PGetVolumeStatus, /* 4 */
343 PSetVolumeStatus, /* 5 */
348 PCheckServers, /* 10 */
349 PCheckVolNames, /* 11 */
351 PBogus, /* 13 -- used to be quick check time */
352 PFindVolume, /* 14 */
353 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
354 PBogus, /* 16 -- used to be testing code */
355 PNoop, /* 17 -- used to be enable group */
356 PNoop, /* 18 -- used to be disable group */
357 PBogus, /* 19 -- used to be list group */
358 PViceAccess, /* 20 */
359 PUnlog, /* 21 -- unlog *is* unpag in this system */
360 PGetFID, /* 22 -- get file ID */
361 PBogus, /* 23 -- used to be waitforever */
362 PSetCacheSize, /* 24 */
363 PRemoveCallBack, /* 25 -- flush only the callback */
366 PRemoveMount, /* 28 -- delete mount point */
367 PNewStatMount, /* 29 -- new style mount point stat */
368 PGetFileCell, /* 30 -- get cell name for input file */
369 PGetWSCell, /* 31 -- get cell name for workstation */
370 PMariner, /* 32 - set/get mariner host */
371 PGetUserCell, /* 33 -- get cell name for user */
372 PBogus, /* 34 -- Enable/Disable logging */
373 PGetCellStatus, /* 35 */
374 PSetCellStatus, /* 36 */
375 PFlushVolumeData, /* 37 -- flush all data from a volume */
376 PSetSysName, /* 38 - Set system name */
377 PExportAfs, /* 39 - Export Afs to remote nfs clients */
378 PGetCacheSize, /* 40 - get cache size and usage */
379 PGetVnodeXStatus, /* 41 - get vcache's special status */
380 PSetSPrefs33, /* 42 - Set CM Server preferences... */
381 PGetSPrefs, /* 43 - Get CM Server preferences... */
382 PGag, /* 44 - turn off/on all CM messages */
383 PTwiddleRx, /* 45 - adjust some RX params */
384 PSetSPrefs, /* 46 - Set CM Server preferences... */
385 PStoreBehind, /* 47 - set degree of store behind to be done */
386 PGCPAGs, /* 48 - disable automatic pag gc-ing */
387 PGetInitParams, /* 49 - get initial cm params */
388 PGetCPrefs, /* 50 - get client interface addresses */
389 PSetCPrefs, /* 51 - set client interface addresses */
390 PFlushMount, /* 52 - flush mount symlink data */
391 PRxStatProc, /* 53 - control process RX statistics */
392 PRxStatPeer, /* 54 - control peer RX statistics */
393 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
394 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
395 PBogus, /* 57 -- arla: set file prio */
396 PBogus, /* 58 -- arla: fallback getfh */
397 PBogus, /* 59 -- arla: fallback fhopen */
398 PBogus, /* 60 -- arla: controls xfsdebug */
399 PBogus, /* 61 -- arla: controls arla debug */
400 PBogus, /* 62 -- arla: debug interface */
401 PBogus, /* 63 -- arla: print xfs status */
402 PBogus, /* 64 -- arla: force cache check */
403 PBogus, /* 65 -- arla: break callback */
404 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
405 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
406 PBogus, /* 68 -- arla: fetch stats */
407 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
410 static pioctlFunction CpioctlSw[] = {
412 PNewAlias, /* 1 -- create new cell alias */
413 PListAliases, /* 2 -- list cell aliases */
414 PCallBackAddr, /* 3 -- request addr for callback rxcon */
416 PDiscon, /* 5 -- get/set discon mode */
425 PFlushAllVolumeData, /* 14 */
428 static pioctlFunction OpioctlSw[] = {
430 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
431 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
432 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
434 PNoop /* 2 -- get/set cache-bypass size threshold */
438 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
439 int afs_nobody = NFS_NOBODY;
442 HandleIoctl(struct vcache *avc, afs_int32 acom,
443 struct afs_ioctl *adata)
448 AFS_STATCNT(HandleIoctl);
450 switch (acom & 0xff) {
452 avc->f.states |= CSafeStore;
454 /* SXW - Should we force a MetaData flush for this flag setting */
457 /* case 2 used to be abort store, but this is no longer provided,
458 * since it is impossible to implement under normal Unix.
462 /* return the name of the cell this file is open on */
466 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
468 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
470 if (i > adata->out_size) {
471 /* 0 means we're not interested in the output */
472 if (adata->out_size != 0)
476 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
478 afs_PutCell(tcell, READ_LOCK);
484 case 49: /* VIOC_GETINITPARAMS */
485 if (adata->out_size < sizeof(struct cm_initparams)) {
488 AFS_COPYOUT(&cm_initParams, adata->out,
489 sizeof(struct cm_initparams), code);
501 return code; /* so far, none implemented */
505 /* For aix we don't temporarily bypass ioctl(2) but rather do our
506 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
507 * is now called from afs_gn_ioctl.
510 afs_ioctl(struct vcache *tvc, int cmd, int arg)
512 struct afs_ioctl data;
515 AFS_STATCNT(afs_ioctl);
516 if (((cmd >> 8) & 0xff) == 'V') {
517 /* This is a VICEIOCTL call */
518 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
521 error = HandleIoctl(tvc, cmd, &data);
524 /* No-op call; just return. */
528 # if defined(AFS_AIX32_ENV)
529 # if defined(AFS_AIX51_ENV)
532 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
534 # else /* __64BIT__ */
536 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
538 # endif /* __64BIT__ */
541 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
542 # endif /* AFS_AIX51_ENV */
547 # ifdef AFS_AIX51_ENV
550 } u_uap, *uap = &u_uap;
553 int ioctlDone = 0, code = 0;
555 AFS_STATCNT(afs_xioctl);
559 # ifdef AFS_AIX51_ENV
563 if (setuerror(getf(uap->fd, &fd))) {
566 if (fd->f_type == DTYPE_VNODE) {
567 /* good, this is a vnode; next see if it is an AFS vnode */
568 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
569 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
570 /* This is an AFS vnode */
571 if (((uap->com >> 8) & 0xff) == 'V') {
572 struct afs_ioctl *datap;
574 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
575 code=copyin_afs_ioctl((char *)uap->arg, datap);
577 osi_FreeSmallSpace(datap);
579 # if defined(AFS_AIX41_ENV)
582 return (setuerror(code), code);
584 code = HandleIoctl(tvc, uap->com, datap);
585 osi_FreeSmallSpace(datap);
588 # if defined(AFS_AIX41_ENV)
595 # if defined(AFS_AIX41_ENV)
597 # if defined(AFS_AIX51_ENV)
599 code = okioctl(fdes, com, arg, ext, arg2, arg3);
600 # else /* __64BIT__ */
601 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
602 # endif /* __64BIT__ */
603 # else /* !AFS_AIX51_ENV */
604 code = okioctl(fdes, com, arg, ext);
605 # endif /* AFS_AIX51_ENV */
607 # elif defined(AFS_AIX32_ENV)
608 okioctl(fdes, com, arg, ext);
611 # if defined(KERNEL_HAVE_UERROR)
614 # if !defined(AFS_AIX41_ENV)
615 return (getuerror()? -1 : u.u_ioctlrv);
617 return getuerror()? -1 : 0;
624 #elif defined(AFS_SGI_ENV)
625 # if defined(AFS_SGI65_ENV)
626 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
627 rval_t * rvalp, struct vopbd * vbds)
629 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
630 rval_t * rvalp, struct vopbd * vbds)
633 struct afs_ioctl data;
639 AFS_STATCNT(afs_ioctl);
640 if (((cmd >> 8) & 0xff) == 'V') {
641 /* This is a VICEIOCTL call */
642 error = copyin_afs_ioctl(arg, &data);
645 locked = ISAFS_GLOCK();
648 error = HandleIoctl(tvc, cmd, &data);
653 /* No-op call; just return. */
657 #elif defined(AFS_SUN5_ENV)
658 struct afs_ioctl_sys {
665 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
669 int ioctlDone = 0, code = 0;
671 AFS_STATCNT(afs_xioctl);
675 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
676 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
677 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
678 /* This is an AFS vnode */
679 if (((uap->com >> 8) & 0xff) == 'V') {
680 struct afs_ioctl *datap;
682 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
683 code=copyin_afs_ioctl((char *)uap->arg, datap);
685 osi_FreeSmallSpace(datap);
690 code = HandleIoctl(tvc, uap->com, datap);
691 osi_FreeSmallSpace(datap);
699 code = ioctl(uap, rvp);
703 #elif defined(AFS_LINUX22_ENV)
704 struct afs_ioctl_sys {
709 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
712 struct afs_ioctl_sys ua, *uap = &ua;
716 AFS_STATCNT(afs_xioctl);
721 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
722 /* This is an AFS vnode */
723 if (((uap->com >> 8) & 0xff) == 'V') {
724 struct afs_ioctl *datap;
726 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
727 code = copyin_afs_ioctl((char *)uap->arg, datap);
729 osi_FreeSmallSpace(datap);
733 code = HandleIoctl(tvc, uap->com, datap);
734 osi_FreeSmallSpace(datap);
742 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
750 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
754 int ioctlDone = 0, code = 0;
756 AFS_STATCNT(afs_xioctl);
757 if ((code = fdgetf(p, uap->fd, &fd)))
759 if (fd->f_type == DTYPE_VNODE) {
760 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
761 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
762 /* This is an AFS vnode */
763 if (((uap->com >> 8) & 0xff) == 'V') {
764 struct afs_ioctl *datap;
766 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
767 code = copyin_afs_ioctl((char *)uap->arg, datap);
769 osi_FreeSmallSpace(datap);
773 code = HandleIoctl(tvc, uap->com, datap);
774 osi_FreeSmallSpace(datap);
782 return ioctl(p, uap, retval);
786 #elif defined(AFS_XBSD_ENV)
787 # if defined(AFS_FBSD_ENV)
790 afs_xioctl(struct thread *td, struct ioctl_args *uap,
793 afs_proc_t *p = td->td_proc;
794 # elif defined(AFS_NBSD_ENV)
796 afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
806 afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
809 struct filedesc *fdp;
811 int ioctlDone = 0, code = 0;
814 AFS_STATCNT(afs_xioctl);
815 #if defined(AFS_NBSD40_ENV)
816 fdp = p->l_proc->p_fd;
820 #if defined(AFS_NBSD50_ENV)
821 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL)
824 if ((uap->fd >= fdp->fd_nfiles)
825 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL))
828 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
830 /* first determine whether this is any sort of vnode */
831 if (fd->f_type == DTYPE_VNODE) {
832 /* good, this is a vnode; next see if it is an AFS vnode */
833 # if defined(AFS_OBSD_ENV)
835 IsAfsVnode((struct vnode *)fd->
836 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
838 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
840 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)) {
841 /* This is an AFS vnode */
842 #if defined(AFS_NBSD50_ENV)
843 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
845 if (((uap->com >> 8) & 0xff) == 'V') {
847 struct afs_ioctl *datap;
849 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
850 #if defined(AFS_NBSD50_ENV)
851 code = copyin_afs_ioctl(SCARG(uap, data), datap);
853 code = copyin_afs_ioctl((char *)uap->arg, datap);
856 osi_FreeSmallSpace(datap);
860 #if defined(AFS_NBSD50_ENV)
861 code = HandleIoctl(tvc, SCARG(uap, com), datap);
863 code = HandleIoctl(tvc, uap->com, datap);
865 osi_FreeSmallSpace(datap);
872 #if defined(AFS_NBSD50_ENV)
873 fd_putfile(SCARG(uap, fd));
877 # if defined(AFS_FBSD_ENV)
878 # if (__FreeBSD_version >= 900044)
879 return sys_ioctl(td, uap);
881 return ioctl(td, uap);
883 # elif defined(AFS_OBSD_ENV)
884 code = sys_ioctl(p, uap, retval);
885 # elif defined(AFS_NBSD_ENV)
886 code = sys_ioctl(p, uap, retval);
892 #elif defined(UKERNEL)
900 } *uap = (struct a *)get_user_struct()->u_ap;
903 int ioctlDone = 0, code = 0;
905 AFS_STATCNT(afs_xioctl);
910 /* first determine whether this is any sort of vnode */
911 if (fd->f_type == DTYPE_VNODE) {
912 /* good, this is a vnode; next see if it is an AFS vnode */
913 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
914 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
915 /* This is an AFS vnode */
916 if (((uap->com >> 8) & 0xff) == 'V') {
917 struct afs_ioctl *datap;
919 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
920 code=copyin_afs_ioctl((char *)uap->arg, datap);
922 osi_FreeSmallSpace(datap);
925 return (setuerror(code), code);
927 code = HandleIoctl(tvc, uap->com, datap);
928 osi_FreeSmallSpace(datap);
941 #endif /* AFS_HPUX102_ENV */
943 #if defined(AFS_SGI_ENV)
944 /* "pioctl" system call entry point; just pass argument to the parameterized
953 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
957 AFS_STATCNT(afs_pioctl);
959 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
961 # ifdef AFS_SGI64_ENV
968 #elif defined(AFS_FBSD_ENV)
970 afs_pioctl(struct thread *td, void *args, int *retval)
977 } *uap = (struct a *)args;
979 AFS_STATCNT(afs_pioctl);
980 return (afs_syscall_pioctl
981 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
984 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
986 afs_pioctl(afs_proc_t *p, void *args, int *retval)
993 } *uap = (struct a *)args;
995 AFS_STATCNT(afs_pioctl);
996 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
997 return (afs_syscall_pioctl
998 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1001 return (afs_syscall_pioctl
1002 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1003 # if defined(AFS_FBSD_ENV)
1006 p->p_cred->pc_ucred));
1013 /* macro to avoid adding any more #ifdef's to pioctl code. */
1014 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1015 #define PIOCTL_FREE_CRED() crfree(credp)
1017 #define PIOCTL_FREE_CRED()
1022 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1023 rval_t *vvp, afs_ucred_t *credp)
1025 #ifdef AFS_DARWIN100_ENV
1026 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1027 int follow, afs_ucred_t *credp)
1028 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1029 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1032 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1036 struct afs_ioctl data;
1037 #ifdef AFS_NEED_CLIENTCONTEXT
1038 afs_ucred_t *tmpcred = NULL;
1040 #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)
1041 afs_ucred_t *foreigncreds = NULL;
1044 struct vnode *vp = NULL;
1045 #ifdef AFS_AIX41_ENV
1046 struct ucred *credp = crref(); /* don't free until done! */
1048 #ifdef AFS_LINUX22_ENV
1049 cred_t *credp = crref(); /* don't free until done! */
1053 AFS_STATCNT(afs_syscall_pioctl);
1055 follow = 1; /* compat. with old venus */
1056 code = copyin_afs_ioctl(cmarg, &data);
1059 #if defined(KERNEL_HAVE_UERROR)
1064 if ((com & 0xff) == PSetClientContext) {
1065 #ifdef AFS_NEED_CLIENTCONTEXT
1066 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1067 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1069 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1073 crfree(foreigncreds);
1076 #if defined(KERNEL_HAVE_UERROR)
1077 return (setuerror(code), code);
1082 #else /* AFS_NEED_CLIENTCONTEXT */
1084 #endif /* AFS_NEED_CLIENTCONTEXT */
1086 #ifdef AFS_NEED_CLIENTCONTEXT
1089 * We could have done without temporary setting the u.u_cred below
1090 * (foreigncreds could be passed as param the pioctl modules)
1091 * but calls such as afs_osi_suser() doesn't allow that since it
1092 * references u.u_cred directly. We could, of course, do something
1093 * like afs_osi_suser(cred) which, I think, is better since it
1094 * generalizes and supports multi cred environments...
1096 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1098 credp = foreigncreds;
1099 #elif defined(AFS_AIX41_ENV)
1100 tmpcred = crref(); /* XXX */
1101 crset(foreigncreds);
1102 #elif defined(AFS_HPUX101_ENV)
1103 tmpcred = p_cred(u.u_procp);
1104 set_p_cred(u.u_procp, foreigncreds);
1105 #elif defined(AFS_SGI_ENV)
1106 tmpcred = OSI_GET_CURRENT_CRED();
1107 OSI_SET_CURRENT_CRED(foreigncreds);
1110 u.u_cred = foreigncreds;
1113 #endif /* AFS_NEED_CLIENTCONTEXT */
1114 if ((com & 0xff) == 15) {
1115 /* special case prefetch so entire pathname eval occurs in helper process.
1116 * otherwise, the pioctl call is essentially useless */
1117 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1119 Prefetch(path, &data, follow,
1120 foreigncreds ? foreigncreds : credp);
1122 code = Prefetch(path, &data, follow, osi_curcred());
1125 #if defined(KERNEL_HAVE_UERROR)
1132 #ifdef AFS_AIX41_ENV
1134 lookupname(path, USR, follow, NULL, &vp,
1135 foreigncreds ? foreigncreds : credp);
1137 #ifdef AFS_LINUX22_ENV
1138 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1140 vp = (struct vnode *)dp->d_inode;
1142 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1143 #endif /* AFS_LINUX22_ENV */
1144 #endif /* AFS_AIX41_ENV */
1148 #if defined(KERNEL_HAVE_UERROR)
1156 #if defined(AFS_SUN510_ENV)
1157 if (vp && !IsAfsVnode(vp)) {
1158 struct vnode *realvp;
1160 #ifdef AFS_SUN511_ENV
1161 (VOP_REALVP(vp, &realvp, NULL) == 0)
1163 (VOP_REALVP(vp, &realvp) == 0)
1166 struct vnode *oldvp = vp;
1174 /* now make the call if we were passed no file, or were passed an AFS file */
1175 if (!vp || IsAfsVnode(vp)) {
1176 #if defined(AFS_SUN5_ENV)
1177 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1178 #elif defined(AFS_AIX41_ENV)
1180 struct ucred *cred1, *cred2;
1183 cred1 = cred2 = foreigncreds;
1185 cred1 = cred2 = credp;
1187 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1188 if (cred1 != cred2) {
1189 /* something changed the creds */
1193 #elif defined(AFS_HPUX101_ENV)
1195 struct ucred *cred = p_cred(u.u_procp);
1196 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1198 #elif defined(AFS_SGI_ENV)
1201 credp = OSI_GET_CURRENT_CRED();
1202 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1204 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1205 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1206 #elif defined(UKERNEL)
1207 code = afs_HandlePioctl(vp, com, &data, follow,
1208 &(get_user_struct()->u_cred));
1210 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1213 #if defined(KERNEL_HAVE_UERROR)
1216 code = EINVAL; /* not in /afs */
1221 #if defined(AFS_NEED_CLIENTCONTEXT)
1223 #ifdef AFS_AIX41_ENV
1224 crset(tmpcred); /* restore original credentials */
1226 #if defined(AFS_HPUX101_ENV)
1227 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1228 #elif defined(AFS_SGI_ENV)
1229 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1230 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1231 credp = tmpcred; /* restore original credentials */
1233 osi_curcred() = tmpcred; /* restore original credentials */
1234 #endif /* AFS_HPUX101_ENV */
1235 crfree(foreigncreds);
1238 #endif /* AFS_NEED_CLIENTCONTEXT */
1240 #ifdef AFS_LINUX22_ENV
1242 * Holding the global lock when calling dput can cause a deadlock
1243 * when the kernel calls back into afs_dentry_iput
1249 #if defined(AFS_FBSD80_ENV)
1250 if (VOP_ISLOCKED(vp))
1252 #endif /* AFS_FBSD80_ENV */
1253 AFS_RELE(vp); /* put vnode back */
1257 #if defined(KERNEL_HAVE_UERROR)
1260 return (getuerror());
1266 #ifdef AFS_DARWIN100_ENV
1268 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1269 int follow, afs_ucred_t *credp)
1271 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1272 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1277 #define MAXPIOCTLTOKENLEN \
1278 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1281 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1282 struct afs_ioctl *ablob, int afollow,
1283 afs_ucred_t **acred)
1286 struct vrequest treq;
1288 afs_int32 function, device;
1289 struct afs_pdata input, output;
1290 struct afs_pdata copyInput, copyOutput;
1292 pioctlFunction *pioctlSw;
1294 struct afs_fakestat_state fakestate;
1296 memset(&input, 0, sizeof(input));
1297 memset(&output, 0, sizeof(output));
1299 avc = avp ? VTOAFS(avp) : NULL;
1300 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1301 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1302 AFS_STATCNT(HandlePioctl);
1304 code = afs_InitReq(&treq, *acred);
1308 afs_InitFakeStat(&fakestate);
1310 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1314 device = (acom & 0xff00) >> 8;
1316 case 'V': /* Original pioctls */
1317 pioctlSw = VpioctlSw;
1318 pioctlSwSize = sizeof(VpioctlSw);
1320 case 'C': /* Coordinated/common pioctls */
1321 pioctlSw = CpioctlSw;
1322 pioctlSwSize = sizeof(CpioctlSw);
1324 case 'O': /* Coordinated/common pioctls */
1325 pioctlSw = OpioctlSw;
1326 pioctlSwSize = sizeof(OpioctlSw);
1332 function = acom & 0xff;
1333 if (function >= (pioctlSwSize / sizeof(char *))) {
1338 /* Do all range checking before continuing */
1339 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1340 ablob->in_size < 0 || ablob->out_size < 0) {
1345 code = afs_pd_alloc(&input, ablob->in_size);
1349 if (ablob->in_size > 0) {
1350 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1351 input.ptr[input.remaining] = '\0';
1356 if ((function == 8 && device == 'V') ||
1357 (function == 7 && device == 'C')) { /* PGetTokens */
1358 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1360 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1366 copyOutput = output;
1369 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1370 ©Output, acred);
1372 outSize = copyOutput.ptr - output.ptr;
1374 if (code == 0 && ablob->out_size > 0) {
1375 if (outSize > ablob->out_size) {
1376 code = E2BIG; /* data wont fit in user buffer */
1377 } else if (outSize) {
1378 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1383 afs_pd_free(&input);
1384 afs_pd_free(&output);
1386 afs_PutFakeStat(&fakestate);
1387 return afs_CheckCode(code, &treq, 41);
1391 * VIOCGETFID (22) - Get file ID quickly
1395 * \param[in] ain not in use
1396 * \param[out] aout fid of requested file
1398 * \retval EINVAL Error if some of the initial arguments aren't set
1400 * \post get the file id of some file
1402 DECL_PIOCTL(PGetFID)
1404 AFS_STATCNT(PGetFID);
1407 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1413 * VIOCSETAL (1) - Set access control list
1417 * \param[in] ain the ACL being set
1418 * \param[out] aout the ACL being set returned
1420 * \retval EINVAL Error if some of the standard args aren't set
1422 * \post Changed ACL, via direct writing to the wire
1425 dummy_PSetAcl(char *ain, char *aout)
1430 DECL_PIOCTL(PSetAcl)
1433 struct afs_conn *tconn;
1434 struct AFSOpaque acl;
1435 struct AFSVolSync tsync;
1436 struct AFSFetchStatus OutStatus;
1437 struct rx_connection *rxconn;
1440 AFS_STATCNT(PSetAcl);
1444 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1446 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1447 if (acl.AFSOpaque_len > 1024)
1451 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1453 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1456 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1457 &acl, &OutStatus, &tsync);
1462 } while (afs_Analyze
1463 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1464 SHARED_LOCK, NULL));
1466 /* now we've forgotten all of the access info */
1467 ObtainWriteLock(&afs_xcbhash, 455);
1469 afs_DequeueCallback(avc);
1470 avc->f.states &= ~(CStatd | CUnique);
1471 ReleaseWriteLock(&afs_xcbhash);
1472 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1473 osi_dnlc_purgedp(avc);
1475 /* SXW - Should we flush metadata here? */
1479 int afs_defaultAsynchrony = 0;
1482 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1486 * \param[in] ain sbstruct (store behind structure) input
1487 * \param[out] aout resulting sbstruct
1490 * Error if the user doesn't have super-user credentials
1492 * Error if there isn't enough access to not check the mode bits
1495 * Changes either the default asynchrony (the amount of data that
1496 * can remain to be written when the cache manager returns control
1497 * to the user), or the asyncrony for the specified file.
1499 DECL_PIOCTL(PStoreBehind)
1501 struct sbstruct sbr;
1503 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1506 if (sbr.sb_default != -1) {
1507 if (afs_osi_suser(*acred))
1508 afs_defaultAsynchrony = sbr.sb_default;
1513 if (avc && (sbr.sb_thisfile != -1)) {
1515 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1516 avc->asynchrony = sbr.sb_thisfile;
1521 memset(&sbr, 0, sizeof(sbr));
1522 sbr.sb_default = afs_defaultAsynchrony;
1524 sbr.sb_thisfile = avc->asynchrony;
1527 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1531 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1535 * \param[in] ain not in use
1536 * \param[out] aout not in use
1538 * \retval EACCES Error if the user doesn't have super-user credentials
1540 * \post set the gcpags to GCPAGS_USERDISABLED
1542 DECL_PIOCTL(PGCPAGs)
1544 if (!afs_osi_suser(*acred)) {
1547 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1552 * VIOCGETAL (2) - Get access control list
1556 * \param[in] ain not in use
1557 * \param[out] aout the ACL
1559 * \retval EINVAL Error if some of the standard args aren't set
1560 * \retval ERANGE Error if the vnode of the file id is too large
1561 * \retval -1 Error if getting the ACL failed
1563 * \post Obtain the ACL, based on file ID
1566 * There is a hack to tell which type of ACL is being returned, checks
1567 * the top 2-bytes of the input size to judge what type of ACL it is,
1568 * only for dfs xlator ACLs
1570 DECL_PIOCTL(PGetAcl)
1572 struct AFSOpaque acl;
1573 struct AFSVolSync tsync;
1574 struct AFSFetchStatus OutStatus;
1576 struct afs_conn *tconn;
1578 struct rx_connection *rxconn;
1581 AFS_STATCNT(PGetAcl);
1584 Fid.Volume = avc->f.fid.Fid.Volume;
1585 Fid.Vnode = avc->f.fid.Fid.Vnode;
1586 Fid.Unique = avc->f.fid.Fid.Unique;
1587 if (avc->f.states & CForeign) {
1589 * For a dfs xlator acl we have a special hack so that the
1590 * xlator will distinguish which type of acl will return. So
1591 * we currently use the top 2-bytes (vals 0-4) to tell which
1592 * type of acl to bring back. Horrible hack but this will
1593 * cause the least number of changes to code size and interfaces.
1595 if (Fid.Vnode & 0xc0000000)
1597 Fid.Vnode |= (ain->remaining << 30);
1599 acl.AFSOpaque_val = aout->ptr;
1601 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1603 acl.AFSOpaque_val[0] = '\0';
1604 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1606 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1611 } while (afs_Analyze
1612 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1613 SHARED_LOCK, NULL));
1616 if (acl.AFSOpaque_len == 0)
1617 afs_pd_skip(aout, 1); /* leave the NULL */
1619 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1625 * PNoop returns success. Used for functions which are not implemented
1626 * or are no longer in use.
1630 * \retval Always returns success
1633 * Functions involved in this:
1634 * 17 (VIOCENGROUP) -- used to be enable group;
1635 * 18 (VIOCDISGROUP) -- used to be disable group;
1636 * 2 (?) -- get/set cache-bypass size threshold
1645 * PBogus returns fail. Used for functions which are not implemented or
1646 * are no longer in use.
1650 * \retval EINVAL Always returns this value
1653 * Functions involved in this:
1659 * 13 (VIOCGETTIME) -- used to be quick check time;
1660 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1661 * 16 (VIOCNOP) -- used to be testing code;
1662 * 19 (VIOCLISTGROUPS) -- used to be list group;
1663 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1664 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1665 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1666 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1667 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1668 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1669 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1670 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1671 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1672 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1673 * 68 (?) -- arla: fetch stats;
1677 AFS_STATCNT(PBogus);
1682 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1686 * \param[in] ain not in use (avc used to pass in file id)
1687 * \param[out] aout cell name
1689 * \retval EINVAL Error if some of the standard args aren't set
1690 * \retval ESRCH Error if the file isn't part of a cell
1692 * \post Get a cell based on a passed in file id
1694 DECL_PIOCTL(PGetFileCell)
1698 AFS_STATCNT(PGetFileCell);
1701 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1705 if (afs_pd_putString(aout, tcell->cellName) != 0)
1708 afs_PutCell(tcell, READ_LOCK);
1713 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1717 * \param[in] ain not in use
1718 * \param[out] aout cell name
1721 * Error if the afs daemon hasn't started yet
1723 * Error if the machine isn't part of a cell, for whatever reason
1725 * \post Get the primary cell that the machine is a part of.
1727 DECL_PIOCTL(PGetWSCell)
1729 struct cell *tcell = NULL;
1731 AFS_STATCNT(PGetWSCell);
1732 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1733 return EIO; /* Inappropriate ioctl for device */
1735 tcell = afs_GetPrimaryCell(READ_LOCK);
1736 if (!tcell) /* no primary cell? */
1739 if (afs_pd_putString(aout, tcell->cellName) != 0)
1741 afs_PutCell(tcell, READ_LOCK);
1746 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1750 * \param[in] ain not in use (user id found via areq)
1751 * \param[out] aout cell name
1754 * Error if the user id doesn't have a primary cell specified
1756 * \post Get the primary cell for a certain user, based on the user's uid
1758 DECL_PIOCTL(PGetUserCell)
1761 struct unixuser *tu;
1764 AFS_STATCNT(PGetUserCell);
1765 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1766 return EIO; /* Inappropriate ioctl for device */
1768 /* return the cell name of the primary cell for this user */
1769 i = UHash(areq->uid);
1770 ObtainWriteLock(&afs_xuser, 224);
1771 for (tu = afs_users[i]; tu; tu = tu->next) {
1772 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1774 ReleaseWriteLock(&afs_xuser);
1775 afs_LockUser(tu, READ_LOCK, 0);
1780 tcell = afs_GetCell(tu->cell, READ_LOCK);
1781 afs_PutUser(tu, READ_LOCK);
1785 if (afs_pd_putString(aout, tcell->cellName) != 0)
1787 afs_PutCell(tcell, READ_LOCK);
1790 ReleaseWriteLock(&afs_xuser);
1795 /* Work out which cell we're changing tokens for */
1797 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1805 if (cellName && strlen(cellName) > 0) {
1806 cell = afs_GetCellByName(cellName, READ_LOCK);
1808 cell = afs_GetPrimaryCell(READ_LOCK);
1819 *cellNum = cell->cellNum;
1820 afs_PutCell(cell, READ_LOCK);
1827 _settok_setParentPag(afs_ucred_t **cred) {
1829 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1831 osi_procname(procname, 256);
1832 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1833 MyPidxx2Pid(MyPidxx), procname);
1834 return setpag(osi_curproc(), cred, -1, &pag, 1);
1836 return setpag(cred, -1, &pag, 1);
1841 * VIOCSETTOK (3) - Set authentication tokens
1845 * \param[in] ain the krb tickets from which to set the afs tokens
1846 * \param[out] aout not in use
1849 * Error if the ticket is either too long or too short
1851 * Error if the AFS initState is below 101
1853 * Error if the cell for which the Token is being set can't be found
1856 * Set the Tokens for a specific cell name, unless there is none set,
1857 * then default to primary
1860 DECL_PIOCTL(PSetTokens)
1865 struct unixuser *tu;
1866 struct ClearToken clear;
1870 struct vrequest treq;
1871 afs_int32 flag, set_parent_pag = 0;
1873 AFS_STATCNT(PSetTokens);
1874 if (!afs_resourceinit_flag) {
1878 if (afs_pd_getInt(ain, &stLen) != 0)
1881 stp = afs_pd_where(ain); /* remember where the ticket is */
1882 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1883 return EINVAL; /* malloc may fail */
1884 if (afs_pd_skip(ain, stLen) != 0)
1887 if (afs_pd_getInt(ain, &size) != 0)
1889 if (size != sizeof(struct ClearToken))
1892 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1895 if (clear.AuthHandle == -1)
1896 clear.AuthHandle = 999; /* more rxvab compat stuff */
1898 if (afs_pd_remaining(ain) != 0) {
1899 /* still stuff left? we've got primary flag and cell name.
1902 if (afs_pd_getInt(ain, &flag) != 0)
1905 /* some versions of gcc appear to need != 0 in order to get this
1907 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1912 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1915 code = _settok_tokenCell(cellName, &cellNum, NULL);
1919 /* default to primary cell, primary id */
1920 code = _settok_tokenCell(NULL, &cellNum, &flag);
1925 if (set_parent_pag) {
1926 if (_settok_setParentPag(acred) == 0) {
1927 afs_InitReq(&treq, *acred);
1932 /* now we just set the tokens */
1933 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1934 /* Set tokens destroys any that are already there */
1935 afs_FreeTokens(&tu->tokens);
1936 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1938 afs_stats_cmfullperf.authent.TicketUpdates++;
1939 afs_ComputePAGStats();
1940 #endif /* AFS_NOSTATS */
1941 tu->states |= UHasTokens;
1942 tu->states &= ~UTokensBad;
1943 afs_SetPrimary(tu, flag);
1944 tu->tokenTime = osi_Time();
1945 afs_ResetUserConns(tu);
1946 afs_NotifyUser(tu, UTokensObtained);
1947 afs_PutUser(tu, WRITE_LOCK);
1953 * VIOCGETVOLSTAT (4) - Get volume status
1957 * \param[in] ain not in use
1958 * \param[out] aout status of the volume
1960 * \retval EINVAL Error if some of the standard args aren't set
1963 * The status of a volume (based on the FID of the volume), or an
1964 * offline message /motd
1966 DECL_PIOCTL(PGetVolumeStatus)
1969 char *offLineMsg = afs_osi_Alloc(256);
1970 char *motd = afs_osi_Alloc(256);
1971 struct afs_conn *tc;
1973 struct AFSFetchVolumeStatus volstat;
1975 struct rx_connection *rxconn;
1978 osi_Assert(offLineMsg != NULL);
1979 osi_Assert(motd != NULL);
1980 AFS_STATCNT(PGetVolumeStatus);
1987 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1989 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1992 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
1993 &Name, &offLineMsg, &motd);
1998 } while (afs_Analyze
1999 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
2000 SHARED_LOCK, NULL));
2004 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
2005 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2007 if (afs_pd_putString(aout, volName) != 0)
2009 if (afs_pd_putString(aout, offLineMsg) != 0)
2011 if (afs_pd_putString(aout, motd) != 0)
2014 afs_osi_Free(offLineMsg, 256);
2015 afs_osi_Free(motd, 256);
2020 * VIOCSETVOLSTAT (5) - Set volume status
2025 * values to set the status at, offline message, message of the day,
2026 * volume name, minimum quota, maximum quota
2028 * status of a volume, offlines messages, minimum quota, maximumm quota
2031 * Error if some of the standard args aren't set
2033 * Error if the volume is read only, or a backup volume
2035 * Error if the volume can't be accessed
2037 * Error if the volume name, offline message, and motd are too big
2040 * Set the status of a volume, including any offline messages,
2041 * a minimum quota, and a maximum quota
2043 DECL_PIOCTL(PSetVolumeStatus)
2048 struct afs_conn *tc;
2050 struct AFSFetchVolumeStatus volstat;
2051 struct AFSStoreVolumeStatus storeStat;
2053 struct rx_connection *rxconn;
2056 AFS_STATCNT(PSetVolumeStatus);
2060 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2062 if (tvp->states & (VRO | VBackup)) {
2063 afs_PutVolume(tvp, READ_LOCK);
2066 afs_PutVolume(tvp, READ_LOCK);
2071 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2074 if (afs_pd_getStringPtr(ain, &volName) != 0)
2076 if (strlen(volName) > 32)
2079 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2081 if (strlen(offLineMsg) > 256)
2084 if (afs_pd_getStringPtr(ain, &motd) != 0)
2086 if (strlen(motd) > 256)
2089 /* Done reading ... */
2092 if (volstat.MinQuota != -1) {
2093 storeStat.MinQuota = volstat.MinQuota;
2094 storeStat.Mask |= AFS_SETMINQUOTA;
2096 if (volstat.MaxQuota != -1) {
2097 storeStat.MaxQuota = volstat.MaxQuota;
2098 storeStat.Mask |= AFS_SETMAXQUOTA;
2101 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2103 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2106 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2107 volName, offLineMsg, motd);
2112 } while (afs_Analyze
2113 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2114 SHARED_LOCK, NULL));
2118 /* we are sending parms back to make compat. with prev system. should
2119 * change interface later to not ask for current status, just set new
2122 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2124 if (afs_pd_putString(aout, volName) != 0)
2126 if (afs_pd_putString(aout, offLineMsg) != 0)
2128 if (afs_pd_putString(aout, motd) != 0)
2135 * VIOCFLUSH (6) - Invalidate cache entry
2139 * \param[in] ain not in use
2140 * \param[out] aout not in use
2142 * \retval EINVAL Error if some of the standard args aren't set
2144 * \post Flush any information the cache manager has on an entry
2148 AFS_STATCNT(PFlush);
2151 #ifdef AFS_BOZONLOCK_ENV
2152 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2154 ObtainWriteLock(&avc->lock, 225);
2155 afs_ResetVCache(avc, *acred, 0);
2156 ReleaseWriteLock(&avc->lock);
2157 #ifdef AFS_BOZONLOCK_ENV
2158 afs_BozonUnlock(&avc->pvnLock, avc);
2164 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2169 * the last component in a path, related to mountpoint that we're
2170 * looking for information about
2172 * volume, cell, link data
2174 * \retval EINVAL Error if some of the standard args aren't set
2175 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2176 * \retval EIO Error if the link data can't be accessed
2178 * \post Get the volume, and cell, as well as the link data for a mount point
2180 DECL_PIOCTL(PNewStatMount)
2185 struct VenusFid tfid;
2188 struct sysname_info sysState;
2189 afs_size_t offset, len;
2191 AFS_STATCNT(PNewStatMount);
2195 if (afs_pd_getStringPtr(ain, &name) != 0)
2198 code = afs_VerifyVCache(avc, areq);
2201 if (vType(avc) != VDIR) {
2204 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2207 Check_AtSys(avc, name, &sysState, areq);
2208 ObtainReadLock(&tdc->lock);
2210 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2211 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2212 ReleaseReadLock(&tdc->lock);
2213 afs_PutDCache(tdc); /* we're done with the data */
2214 bufp = sysState.name;
2218 tfid.Cell = avc->f.fid.Cell;
2219 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2220 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2221 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2223 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2229 if (tvc->mvstat != 1) {
2234 ObtainWriteLock(&tvc->lock, 226);
2235 code = afs_HandleLink(tvc, areq);
2237 if (tvc->linkData) {
2238 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2241 /* we have the data */
2242 if (afs_pd_putString(aout, tvc->linkData) != 0)
2248 ReleaseWriteLock(&tvc->lock);
2251 if (sysState.allocked)
2252 osi_FreeLargeSpace(bufp);
2257 * A helper function to get the n'th cell which a particular user has tokens
2258 * for. This is racy. If new tokens are added whilst we're iterating, then
2259 * we may return some cells twice. If tokens expire mid run, then we'll
2260 * miss some cells from our output. So, could be better, but that would
2261 * require an interface change.
2264 static struct unixuser *
2265 getNthCell(afs_int32 uid, afs_int32 iterator) {
2267 struct unixuser *tu = NULL;
2270 ObtainReadLock(&afs_xuser);
2271 for (tu = afs_users[i]; tu; tu = tu->next) {
2272 if (tu->uid == uid && (tu->states & UHasTokens)) {
2273 if (iterator-- == 0)
2274 break; /* are we done yet? */
2280 ReleaseReadLock(&afs_xuser);
2282 afs_LockUser(tu, READ_LOCK, 0);
2289 * VIOCGETTOK (8) - Get authentication tokens
2293 * \param[in] ain cellid to return tokens for
2294 * \param[out] aout token
2297 * Error if the afs daemon hasn't started yet
2299 * Error if the input parameter is out of the bounds of the available
2302 * Error if there aren't tokens for this cell
2305 * If the input paramater exists, get the token that corresponds to
2306 * the parameter value, if there is no token at this value, get the
2307 * token for the first cell
2309 * \notes "it's a weird interface (from comments in the code)"
2312 DECL_PIOCTL(PGetTokens)
2315 struct unixuser *tu = NULL;
2316 union tokenUnion *token;
2317 afs_int32 iterator = 0;
2322 AFS_STATCNT(PGetTokens);
2323 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2324 return EIO; /* Inappropriate ioctl for device */
2326 /* weird interface. If input parameter is present, it is an integer and
2327 * we're supposed to return the parm'th tokens for this unix uid.
2328 * If not present, we just return tokens for cell 1.
2329 * If counter out of bounds, return EDOM.
2330 * If no tokens for the particular cell, return ENOTCONN.
2331 * Also, if this mysterious parm is present, we return, along with the
2332 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2333 * at the end, in that order.
2335 newStyle = (afs_pd_remaining(ain) > 0);
2337 if (afs_pd_getInt(ain, &iterator) != 0)
2341 tu = getNthCell(areq->uid, iterator);
2343 cellNum = afs_GetPrimaryCellNum();
2345 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2350 if (!(tu->states & UHasTokens)
2351 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2352 tu->states |= (UTokensBad | UNeedsReset);
2353 afs_NotifyUser(tu, UTokensDropped);
2354 afs_PutUser(tu, READ_LOCK);
2357 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2359 /* If they don't have an RXKAD token, but do have other tokens,
2360 * then sadly there's nothing this interface can do to help them. */
2364 /* for compat, we try to return 56 byte tix if they fit */
2365 iterator = token->rxkad.ticketLen;
2367 iterator = 56; /* # of bytes we're returning */
2369 if (afs_pd_putInt(aout, iterator) != 0)
2371 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2373 if (token->rxkad.ticketLen < 56) {
2374 /* Tokens are always 56 bytes or larger */
2375 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2380 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2382 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2383 sizeof(struct ClearToken)) != 0)
2387 /* put out primary id and cell name, too */
2388 iterator = (tu->states & UPrimary ? 1 : 0);
2389 if (afs_pd_putInt(aout, iterator) != 0)
2391 tcell = afs_GetCell(tu->cell, READ_LOCK);
2393 if (afs_pd_putString(aout, tcell->cellName) != 0)
2395 afs_PutCell(tcell, READ_LOCK);
2397 if (afs_pd_putString(aout, "") != 0)
2400 /* Got here, all is good */
2403 afs_PutUser(tu, READ_LOCK);
2408 * VIOCUNLOG (9) - Invalidate tokens
2412 * \param[in] ain not in use
2413 * \param[out] aout not in use
2415 * \retval EIO Error if the afs daemon hasn't been started yet
2417 * \post remove tokens from a user, specified by the user id
2419 * \notes sets the token's time to 0, which then causes it to be removed
2420 * \notes Unlog is the same as un-pag in OpenAFS
2425 struct unixuser *tu;
2427 AFS_STATCNT(PUnlog);
2428 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2429 return EIO; /* Inappropriate ioctl for device */
2431 i = UHash(areq->uid);
2432 ObtainWriteLock(&afs_xuser, 227);
2433 for (tu = afs_users[i]; tu; tu = tu->next) {
2434 if (tu->uid == areq->uid) {
2436 ReleaseWriteLock(&afs_xuser);
2438 afs_LockUser(tu, WRITE_LOCK, 366);
2440 tu->states &= ~UHasTokens;
2441 afs_FreeTokens(&tu->tokens);
2442 afs_NotifyUser(tu, UTokensDropped);
2443 /* We have to drop the lock over the call to afs_ResetUserConns,
2444 * since it obtains the afs_xvcache lock. We could also keep
2445 * the lock, and modify ResetUserConns to take parm saying we
2446 * obtained the lock already, but that is overkill. By keeping
2447 * the "tu" pointer held over the released lock, we guarantee
2448 * that we won't lose our place, and that we'll pass over
2449 * every user conn that existed when we began this call.
2451 afs_ResetUserConns(tu);
2452 afs_PutUser(tu, WRITE_LOCK);
2453 ObtainWriteLock(&afs_xuser, 228);
2455 /* set the expire times to 0, causes
2456 * afs_GCUserData to remove this entry
2459 #endif /* UKERNEL */
2462 ReleaseWriteLock(&afs_xuser);
2467 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2471 * \param[in] ain host address to be set
2472 * \param[out] aout old host address
2475 * depending on whether or not a variable is set, either get the host
2476 * for the cache manager monitor, or set the old address and give it
2479 * \notes Errors turn off mariner
2481 DECL_PIOCTL(PMariner)
2483 afs_int32 newHostAddr;
2484 afs_int32 oldHostAddr;
2486 AFS_STATCNT(PMariner);
2488 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2491 oldHostAddr = 0xffffffff; /* disabled */
2493 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2496 if (newHostAddr == 0xffffffff) {
2497 /* disable mariner operations */
2499 } else if (newHostAddr) {
2501 afs_marinerHost = newHostAddr;
2504 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2511 * VIOCCKSERV (10) - Check that servers are up
2515 * \param[in] ain name of the cell
2516 * \param[out] aout current down server list
2518 * \retval EIO Error if the afs daemon hasn't started yet
2519 * \retval EACCES Error if the user doesn't have super-user credentials
2520 * \retval ENOENT Error if we are unable to obtain the cell
2523 * Either a fast check (where it doesn't contact servers) or a
2524 * local check (checks local cell only)
2526 DECL_PIOCTL(PCheckServers)
2531 char *cellName = NULL;
2533 struct chservinfo *pcheck;
2535 AFS_STATCNT(PCheckServers);
2537 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2538 return EIO; /* Inappropriate ioctl for device */
2540 /* This is tricky, because we need to peak at the datastream to see
2541 * what we're getting. For now, let's cheat. */
2543 /* ain contains either an int32 or a string */
2544 if (ain->remaining == 0)
2547 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2548 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2552 if (pcheck->tinterval >= 0) {
2553 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2555 if (pcheck->tinterval > 0) {
2556 if (!afs_osi_suser(*acred))
2558 afs_probe_interval = pcheck->tinterval;
2562 temp = pcheck->tflags;
2564 cellName = pcheck->tbuffer;
2565 } else { /* For pre afs3.3 versions */
2566 if (afs_pd_getInt(ain, &temp) != 0)
2568 if (afs_pd_remaining(ain) > 0) {
2569 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2575 * 1: fast check, don't contact servers.
2576 * 2: local cell only.
2579 /* have cell name, too */
2580 cellp = afs_GetCellByName(cellName, READ_LOCK);
2585 if (!cellp && (temp & 2)) {
2586 /* use local cell */
2587 cellp = afs_GetPrimaryCell(READ_LOCK);
2589 if (!(temp & 1)) { /* if not fast, call server checker routine */
2590 afs_CheckServers(1, cellp); /* check down servers */
2591 afs_CheckServers(0, cellp); /* check up servers */
2593 /* now return the current down server list */
2594 ObtainReadLock(&afs_xserver);
2595 for (i = 0; i < NSERVERS; i++) {
2596 for (ts = afs_servers[i]; ts; ts = ts->next) {
2597 if (cellp && ts->cell != cellp)
2598 continue; /* cell spec'd and wrong */
2599 if ((ts->flags & SRVR_ISDOWN)
2600 && ts->addr->sa_portal != ts->cell->vlport) {
2601 afs_pd_putInt(aout, ts->addr->sa_ip);
2605 ReleaseReadLock(&afs_xserver);
2607 afs_PutCell(cellp, READ_LOCK);
2612 * VIOCCKBACK (11) - Check backup volume mappings
2616 * \param[in] ain not in use
2617 * \param[out] aout not in use
2619 * \retval EIO Error if the afs daemon hasn't started yet
2622 * Check the root volume, and then check the names if the volume
2623 * check variable is set to force, has expired, is busy, or if
2624 * the mount points variable is set
2626 DECL_PIOCTL(PCheckVolNames)
2628 AFS_STATCNT(PCheckVolNames);
2629 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2630 return EIO; /* Inappropriate ioctl for device */
2632 afs_CheckRootVolume();
2633 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2634 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2639 * VIOCCKCONN (12) - Check connections for a user
2643 * \param[in] ain not in use
2644 * \param[out] aout not in use
2647 * Error if no user is specififed, the user has no tokens set,
2648 * or if the user's tokens are bad
2651 * check to see if a user has the correct authentication.
2652 * If so, allow access.
2654 * \notes Check the connections to all the servers specified
2656 DECL_PIOCTL(PCheckAuth)
2660 struct sa_conn_vector *tcv;
2661 struct unixuser *tu;
2664 AFS_STATCNT(PCheckAuth);
2665 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2666 return EIO; /* Inappropriate ioctl for device */
2669 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2673 /* we have a user */
2674 ObtainReadLock(&afs_xsrvAddr);
2675 ObtainReadLock(&afs_xconn);
2677 /* any tokens set? */
2678 if ((tu->states & UHasTokens) == 0)
2680 /* all connections in cell 1 working? */
2681 for (i = 0; i < NSERVERS; i++) {
2682 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2683 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2684 if (tcv->user == tu && (tu->states & UTokensBad))
2689 ReleaseReadLock(&afs_xsrvAddr);
2690 ReleaseReadLock(&afs_xconn);
2691 afs_PutUser(tu, READ_LOCK);
2693 if (afs_pd_putInt(aout, retValue) != 0)
2699 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2704 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2710 AFS_STATCNT(Prefetch);
2713 tp = osi_AllocLargeSpace(1024);
2714 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2716 osi_FreeLargeSpace(tp);
2719 if (afs_BBusy()) { /* do this as late as possible */
2720 osi_FreeLargeSpace(tp);
2721 return EWOULDBLOCK; /* pretty close */
2723 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2724 (afs_size_t) 0, tp, (void *)0, (void *)0);
2729 * VIOCWHEREIS (14) - Find out where a volume is located
2733 * \param[in] ain not in use
2734 * \param[out] aout volume location
2736 * \retval EINVAL Error if some of the default arguments don't exist
2737 * \retval ENODEV Error if there is no such volume
2739 * \post fine a volume, based on a volume file id
2741 * \notes check each of the servers specified
2743 DECL_PIOCTL(PFindVolume)
2750 AFS_STATCNT(PFindVolume);
2753 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2757 for (i = 0; i < AFS_MAXHOSTS; i++) {
2758 ts = tvp->serverHost[i];
2761 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2766 if (i < AFS_MAXHOSTS) {
2767 /* still room for terminating NULL, add it on */
2768 if (afs_pd_putInt(aout, 0) != 0) {
2774 afs_PutVolume(tvp, READ_LOCK);
2779 * VIOCACCESS (20) - Access using PRS_FS bits
2783 * \param[in] ain PRS_FS bits
2784 * \param[out] aout not in use
2786 * \retval EINVAL Error if some of the initial arguments aren't set
2787 * \retval EACCES Error if access is denied
2789 * \post check to make sure access is allowed
2791 DECL_PIOCTL(PViceAccess)
2796 AFS_STATCNT(PViceAccess);
2800 code = afs_VerifyVCache(avc, areq);
2804 if (afs_pd_getInt(ain, &temp) != 0)
2807 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2815 * VIOC_GETPAG (13) - Get PAG value
2819 * \param[in] ain not in use
2820 * \param[out] aout PAG value or NOPAG
2822 * \post get PAG value for the caller's cred
2824 DECL_PIOCTL(PGetPAG)
2828 pag = PagInCred(*acred);
2830 return afs_pd_putInt(aout, pag);
2833 DECL_PIOCTL(PPrecache)
2837 /*AFS_STATCNT(PPrecache);*/
2838 if (!afs_osi_suser(*acred))
2841 if (afs_pd_getInt(ain, &newValue) != 0)
2844 afs_preCache = newValue*1024;
2849 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2853 * \param[in] ain the size the venus cache should be set to
2854 * \param[out] aout not in use
2856 * \retval EACCES Error if the user doesn't have super-user credentials
2857 * \retval EROFS Error if the cache is set to be in memory
2860 * Set the cache size based on user input. If no size is given,
2861 * set it to the default OpenAFS cache size.
2864 * recompute the general cache parameters for every single block allocated
2866 DECL_PIOCTL(PSetCacheSize)
2871 AFS_STATCNT(PSetCacheSize);
2873 if (!afs_osi_suser(*acred))
2875 /* too many things are setup initially in mem cache version */
2876 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2878 if (afs_pd_getInt(ain, &newValue) != 0)
2881 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2883 if (newValue < afs_min_cache)
2884 afs_cacheBlocks = afs_min_cache;
2886 afs_cacheBlocks = newValue;
2888 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2889 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2890 afs_MaybeWakeupTruncateDaemon();
2891 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2892 afs_osi_Wait(1000, 0, 0);
2893 afs_MaybeWakeupTruncateDaemon();
2898 #define MAXGCSTATS 16
2900 * VIOCGETCACHEPARMS (40) - Get cache stats
2904 * \param[in] ain afs index flags
2905 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2907 * \post Get the cache blocks, and how many of the cache blocks there are
2909 DECL_PIOCTL(PGetCacheSize)
2911 afs_int32 results[MAXGCSTATS];
2913 struct dcache * tdc;
2916 AFS_STATCNT(PGetCacheSize);
2918 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2919 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2920 } else if (afs_pd_remaining(ain) == 0) {
2926 memset(results, 0, sizeof(results));
2927 results[0] = afs_cacheBlocks;
2928 results[1] = afs_blocksUsed;
2929 results[2] = afs_cacheFiles;
2932 for (i = 0; i < afs_cacheFiles; i++) {
2933 if (afs_indexFlags[i] & IFFree) results[3]++;
2935 } else if (2 == flags){
2936 for (i = 0; i < afs_cacheFiles; i++) {
2937 if (afs_indexFlags[i] & IFFree) results[3]++;
2938 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2939 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2940 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2941 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2942 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2944 tdc = afs_indexTable[i];
2947 size = tdc->validPos;
2948 if ( 0 < size && size < (1<<12) ) results[10]++;
2949 else if (size < (1<<14) ) results[11]++;
2950 else if (size < (1<<16) ) results[12]++;
2951 else if (size < (1<<18) ) results[13]++;
2952 else if (size < (1<<20) ) results[14]++;
2953 else if (size >= (1<<20) ) results[15]++;
2957 return afs_pd_putBytes(aout, results, sizeof(results));
2961 * VIOCFLUSHCB (25) - Flush callback only
2965 * \param[in] ain not in use
2966 * \param[out] aout not in use
2968 * \retval EINVAL Error if some of the standard args aren't set
2969 * \retval 0 0 returned if the volume is set to read-only
2972 * Flushes callbacks, by setting the length of callbacks to one,
2973 * setting the next callback to be sent to the CB_DROPPED value,
2974 * and then dequeues everything else.
2976 DECL_PIOCTL(PRemoveCallBack)
2978 struct afs_conn *tc;
2980 struct AFSCallBack CallBacks_Array[1];
2981 struct AFSCBFids theFids;
2982 struct AFSCBs theCBs;
2983 struct rx_connection *rxconn;
2986 AFS_STATCNT(PRemoveCallBack);
2989 if (avc->f.states & CRO)
2990 return 0; /* read-only-ness can't change */
2991 ObtainWriteLock(&avc->lock, 229);
2992 theFids.AFSCBFids_len = 1;
2993 theCBs.AFSCBs_len = 1;
2994 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2995 theCBs.AFSCBs_val = CallBacks_Array;
2996 CallBacks_Array[0].CallBackType = CB_DROPPED;
2997 if (avc->callback) {
2999 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3001 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
3003 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3007 /* don't set code on failure since we wouldn't use it */
3008 } while (afs_Analyze
3009 (tc, rxconn, code, &avc->f.fid, areq,
3010 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3012 ObtainWriteLock(&afs_xcbhash, 457);
3013 afs_DequeueCallback(avc);
3015 avc->f.states &= ~(CStatd | CUnique);
3016 ReleaseWriteLock(&afs_xcbhash);
3017 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3018 osi_dnlc_purgedp(avc);
3020 ReleaseWriteLock(&avc->lock);
3025 * VIOCNEWCELL (26) - Configure new cell
3030 * the name of the cell, the hosts that will be a part of the cell,
3031 * whether or not it's linked with another cell, the other cell it's
3032 * linked with, the file server port, and the volume server port
3036 * \retval EIO Error if the afs daemon hasn't started yet
3037 * \retval EACCES Error if the user doesn't have super-user cedentials
3038 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3040 * \post creates a new cell
3042 DECL_PIOCTL(PNewCell)
3044 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3045 char *newcell = NULL;
3046 char *linkedcell = NULL;
3048 afs_int32 linkedstate = 0;
3049 afs_int32 fsport = 0, vlport = 0;
3052 AFS_STATCNT(PNewCell);
3053 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3054 return EIO; /* Inappropriate ioctl for device */
3056 if (!afs_osi_suser(*acred))
3059 if (afs_pd_getInt(ain, &magic) != 0)
3061 if (magic != 0x12345678)
3064 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3065 * server addresses while the 3.5 fs newcell command passes
3066 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3069 * This whole logic is bogus, because it relies on the newer command
3070 * sending its 12th address as 0.
3072 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3075 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3076 if (newcell[0] != '\0') {
3079 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3082 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3083 if (afs_pd_getBytes(ain, &cellHosts,
3084 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3086 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3089 if (afs_pd_getInt(ain, &fsport) != 0)
3092 fsport = 0; /* Privileged ports not allowed */
3094 if (afs_pd_getInt(ain, &vlport) != 0)
3097 vlport = 0; /* Privileged ports not allowed */
3099 if (afs_pd_getInt(ain, &ls) != 0)
3102 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3106 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3108 linkedstate |= CLinkedCell;
3111 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3113 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3118 DECL_PIOCTL(PNewAlias)
3120 /* create a new cell alias */
3121 char *realName, *aliasName;
3123 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3124 return EIO; /* Inappropriate ioctl for device */
3126 if (!afs_osi_suser(*acred))
3129 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3131 if (afs_pd_getStringPtr(ain, &realName) != 0)
3134 return afs_NewCellAlias(aliasName, realName);
3138 * VIOCGETCELL (27) - Get cell info
3142 * \param[in] ain The cell index of a specific cell
3143 * \param[out] aout list of servers in the cell
3145 * \retval EIO Error if the afs daemon hasn't started yet
3146 * \retval EDOM Error if there is no cell asked about
3148 * \post Lists the cell's server names and and addresses
3150 DECL_PIOCTL(PListCells)
3152 afs_int32 whichCell;
3153 struct cell *tcell = 0;
3157 AFS_STATCNT(PListCells);
3158 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3159 return EIO; /* Inappropriate ioctl for device */
3161 if (afs_pd_getInt(ain, &whichCell) != 0)
3164 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3170 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3171 if (tcell->cellHosts[i] == 0)
3173 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3176 for (;i < AFS_MAXCELLHOSTS; i++) {
3177 if (afs_pd_putInt(aout, 0) != 0)
3180 if (afs_pd_putString(aout, tcell->cellName) != 0)
3185 afs_PutCell(tcell, READ_LOCK);
3189 DECL_PIOCTL(PListAliases)
3191 afs_int32 whichAlias;
3192 struct cell_alias *tcalias = 0;
3195 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3196 return EIO; /* Inappropriate ioctl for device */
3198 if (afs_pd_getInt(ain, &whichAlias) != 0)
3201 tcalias = afs_GetCellAlias(whichAlias);
3202 if (tcalias == NULL)
3206 if (afs_pd_putString(aout, tcalias->alias) != 0)
3208 if (afs_pd_putString(aout, tcalias->cell) != 0)
3213 afs_PutCellAlias(tcalias);
3218 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3222 * \param[in] ain the name of the file in this dir to remove
3223 * \param[out] aout not in use
3226 * Error if some of the standard args aren't set
3228 * Error if the argument to remove is not a directory
3230 * Error if there is no cache to remove the mount point from or
3231 * if a vcache doesn't exist
3234 * Ensure that everything is OK before deleting the mountpoint.
3235 * If not, don't delete. Delete a mount point based on a file id.
3237 DECL_PIOCTL(PRemoveMount)
3242 struct sysname_info sysState;
3243 afs_size_t offset, len;
3244 struct afs_conn *tc;
3247 struct AFSFetchStatus OutDirStatus;
3248 struct VenusFid tfid;
3249 struct AFSVolSync tsync;
3250 struct rx_connection *rxconn;
3253 /* "ain" is the name of the file in this dir to remove */
3255 AFS_STATCNT(PRemoveMount);
3258 if (afs_pd_getStringPtr(ain, &name) != 0)
3261 code = afs_VerifyVCache(avc, areq);
3264 if (vType(avc) != VDIR)
3267 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3270 Check_AtSys(avc, name, &sysState, areq);
3271 ObtainReadLock(&tdc->lock);
3273 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3274 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3275 ReleaseReadLock(&tdc->lock);
3276 bufp = sysState.name;
3281 tfid.Cell = avc->f.fid.Cell;
3282 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3283 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3284 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3286 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3293 if (tvc->mvstat != 1) {
3299 ObtainWriteLock(&tvc->lock, 230);
3300 code = afs_HandleLink(tvc, areq);
3302 if (tvc->linkData) {
3303 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3308 ReleaseWriteLock(&tvc->lock);
3309 osi_dnlc_purgedp(tvc);
3315 ObtainWriteLock(&avc->lock, 231);
3316 osi_dnlc_remove(avc, bufp, tvc);
3318 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3320 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3323 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3324 &OutDirStatus, &tsync);
3329 } while (afs_Analyze
3330 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3331 SHARED_LOCK, NULL));
3336 ReleaseWriteLock(&avc->lock);
3340 /* we have the thing in the cache */
3341 ObtainWriteLock(&tdc->lock, 661);
3342 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3343 /* we can do it locally */
3344 code = afs_dir_Delete(tdc, bufp);
3346 ZapDCE(tdc); /* surprise error -- invalid value */
3350 ReleaseWriteLock(&tdc->lock);
3351 afs_PutDCache(tdc); /* drop ref count */
3353 avc->f.states &= ~CUnique; /* For the dfs xlator */
3354 ReleaseWriteLock(&avc->lock);
3357 if (sysState.allocked)
3358 osi_FreeLargeSpace(bufp);
3363 * VIOC_GETCELLSTATUS (35) - Get cell status info
3367 * \param[in] ain The cell you want status information on
3368 * \param[out] aout cell state (as a struct)
3370 * \retval EIO Error if the afs daemon hasn't started yet
3371 * \retval ENOENT Error if the cell doesn't exist
3373 * \post Returns the state of the cell as defined in a struct cell
3375 DECL_PIOCTL(PGetCellStatus)
3381 AFS_STATCNT(PGetCellStatus);
3382 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3383 return EIO; /* Inappropriate ioctl for device */
3385 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3388 tcell = afs_GetCellByName(cellName, READ_LOCK);
3391 temp = tcell->states;
3392 afs_PutCell(tcell, READ_LOCK);
3394 return afs_pd_putInt(aout, temp);
3398 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3403 * The cell you want to set information about, and the values you
3408 * \retval EIO Error if the afs daemon hasn't started yet
3409 * \retval EACCES Error if the user doesn't have super-user credentials
3412 * Set the state of the cell in a defined struct cell, based on
3413 * whether or not SetUID is allowed
3415 DECL_PIOCTL(PSetCellStatus)
3419 afs_int32 flags0, flags1;
3421 if (!afs_osi_suser(*acred))
3423 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3424 return EIO; /* Inappropriate ioctl for device */
3426 if (afs_pd_getInt(ain, &flags0) != 0)
3428 if (afs_pd_getInt(ain, &flags1) != 0)
3430 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3433 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3436 if (flags0 & CNoSUID)
3437 tcell->states |= CNoSUID;
3439 tcell->states &= ~CNoSUID;
3440 afs_PutCell(tcell, WRITE_LOCK);
3445 FlushVolumeData(struct VenusFid *afid, afs_ucred_t * acred)
3453 afs_int32 volume = 0;
3454 struct afs_q *tq, *uq;
3455 #ifdef AFS_DARWIN80_ENV
3462 volume = afid->Fid.Volume; /* who to zap */
3467 * Clear stat'd flag from all vnodes from this volume; this will
3468 * invalidate all the vcaches associated with the volume.
3471 ObtainReadLock(&afs_xvcache);
3472 for (i = (afid ? VCHashV(afid) : 0); i < VCSIZE; i = (afid ? VCSIZE : i+1)) {
3473 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3476 if (all || (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell)) {
3477 if (tvc->f.states & CVInit) {
3478 ReleaseReadLock(&afs_xvcache);
3479 afs_osi_Sleep(&tvc->f.states);
3482 #ifdef AFS_DARWIN80_ENV
3483 if (tvc->f.states & CDeadVnode) {
3484 ReleaseReadLock(&afs_xvcache);
3485 afs_osi_Sleep(&tvc->f.states);
3491 if (vnode_ref(vp)) {
3500 ReleaseReadLock(&afs_xvcache);
3501 #ifdef AFS_BOZONLOCK_ENV
3502 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3504 ObtainWriteLock(&tvc->lock, 232);
3505 afs_ResetVCache(tvc, acred, 1);
3506 ReleaseWriteLock(&tvc->lock);
3507 #ifdef AFS_BOZONLOCK_ENV
3508 afs_BozonUnlock(&tvc->pvnLock, tvc);
3510 #ifdef AFS_DARWIN80_ENV
3511 vnode_put(AFSTOV(tvc));
3513 ObtainReadLock(&afs_xvcache);
3515 /* our tvc ptr is still good until now */
3520 ReleaseReadLock(&afs_xvcache);
3523 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3524 for (i = 0; i < afs_cacheFiles; i++) {
3525 if (!(afs_indexFlags[i] & IFEverUsed))
3526 continue; /* never had any data */
3527 tdc = afs_GetValidDSlot(i);
3531 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3532 ReleaseReadLock(&tdc->tlock);
3533 if (all || (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell)) {
3534 if (!(afs_indexFlags[i] & (IFDataMod | IFFree | IFDiscarded))) {
3535 /* if the file is modified, but has a ref cnt of only 1,
3536 * then someone probably has the file open and is writing
3537 * into it. Better to skip flushing such a file, it will be
3538 * brought back immediately on the next write anyway.
3540 * Skip if already freed.
3542 * If we *must* flush, then this code has to be rearranged
3543 * to call afs_storeAllSegments() first */
3544 afs_FlushDCache(tdc);
3548 ReleaseReadLock(&tdc->tlock);
3550 afs_PutDCache(tdc); /* bumped by getdslot */
3552 ReleaseWriteLock(&afs_xdcache);
3554 ObtainReadLock(&afs_xvolume);
3555 for (i = 0; i < NVOLS; i++) {
3556 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3557 if (all || tv->volume == volume) {
3558 afs_ResetVolumeInfo(tv);
3563 ReleaseReadLock(&afs_xvolume);
3565 /* probably, a user is doing this, probably, because things are screwed up.
3566 * maybe it's the dnlc's fault? */
3571 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3575 * \param[in] ain not in use (args in avc)
3576 * \param[out] aout not in use
3578 * \retval EINVAL Error if some of the standard args aren't set
3579 * \retval EIO Error if the afs daemon hasn't started yet
3582 * Flush all cached contents of a volume. Exactly what stays and what
3583 * goes depends on the platform.
3586 * Does not flush a file that a user has open and is using, because
3587 * it will be re-created on next write. Also purges the dnlc,
3588 * because things are screwed up.
3590 DECL_PIOCTL(PFlushVolumeData)
3592 AFS_STATCNT(PFlushVolumeData);
3595 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3596 return EIO; /* Inappropriate ioctl for device */
3598 FlushVolumeData(&avc->f.fid, *acred);
3603 * VIOC_FLUSHALL (14) - Flush whole volume's data for all volumes
3607 * \param[in] ain not in use
3608 * \param[out] aout not in use
3610 * \retval EINVAL Error if some of the standard args aren't set
3611 * \retval EIO Error if the afs daemon hasn't started yet
3614 * Flush all cached contents. Exactly what stays and what
3615 * goes depends on the platform.
3618 * Does not flush a file that a user has open and is using, because
3619 * it will be re-created on next write. Also purges the dnlc,
3620 * because things are screwed up.
3622 DECL_PIOCTL(PFlushAllVolumeData)
3624 AFS_STATCNT(PFlushAllVolumeData);
3626 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3627 return EIO; /* Inappropriate ioctl for device */
3629 FlushVolumeData(NULL, *acred);
3634 * VIOCGETVCXSTATUS (41) - gets vnode x status
3639 * not in use (avc used)
3641 * vcxstat: the file id, the data version, any lock, the parent vnode,
3642 * the parent unique id, the trunc position, the callback, cbExpires,
3643 * what access is being made, what files are open,
3644 * any users executing/writing, the flock count, the states,
3648 * Error if some of the initial default arguments aren't set
3650 * Error if access to check the mode bits is denied
3653 * gets stats for the vnode, a struct listed in vcxstat
3655 DECL_PIOCTL(PGetVnodeXStatus)
3658 struct vcxstat stat;
3661 /* AFS_STATCNT(PGetVnodeXStatus); */
3664 code = afs_VerifyVCache(avc, areq);
3667 if (vType(avc) == VDIR)
3668 mode = PRSFS_LOOKUP;
3671 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3674 memset(&stat, 0, sizeof(struct vcxstat));
3675 stat.fid = avc->f.fid;
3676 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3677 stat.lock = avc->lock;
3678 stat.parentVnode = avc->f.parent.vnode;
3679 stat.parentUnique = avc->f.parent.unique;
3680 hset(stat.flushDV, avc->flushDV);
3681 hset(stat.mapDV, avc->mapDV);
3682 stat.truncPos = avc->f.truncPos;
3683 { /* just grab the first two - won't break anything... */
3684 struct axscache *ac;
3686 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3687 stat.randomUid[i] = ac->uid;
3688 stat.randomAccess[i] = ac->axess;
3691 stat.callback = afs_data_pointer_to_int32(avc->callback);
3692 stat.cbExpires = avc->cbExpires;
3693 stat.anyAccess = avc->f.anyAccess;
3694 stat.opens = avc->opens;
3695 stat.execsOrWriters = avc->execsOrWriters;
3696 stat.flockCount = avc->flockCount;
3697 stat.mvstat = avc->mvstat;
3698 stat.states = avc->f.states;
3699 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3703 DECL_PIOCTL(PGetVnodeXStatus2)
3706 struct vcxstat2 stat;
3711 code = afs_VerifyVCache(avc, areq);
3714 if (vType(avc) == VDIR)
3715 mode = PRSFS_LOOKUP;
3718 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3721 memset(&stat, 0, sizeof(struct vcxstat2));
3723 stat.cbExpires = avc->cbExpires;
3724 stat.anyAccess = avc->f.anyAccess;
3725 stat.mvstat = avc->mvstat;
3726 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3728 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3733 * VIOC_AFS_SYSNAME (38) - Change @sys value
3737 * \param[in] ain new value for @sys
3738 * \param[out] aout count, entry, list (debug values?)
3741 * Error if afsd isn't running, the new sysname is too large,
3742 * the new sysname causes issues (starts with a . or ..),
3743 * there is no PAG set in the credentials, or the user of a PAG
3746 * Error if the user doesn't have super-user credentials
3749 * Set the value of @sys if these things work: if the input isn't
3750 * too long or if input doesn't start with . or ..
3753 * We require root for local sysname changes, but not for remote
3754 * (since we don't really believe remote uids anyway)
3755 * outname[] shouldn't really be needed- this is left as an
3756 * exercise for the reader.
3758 DECL_PIOCTL(PSetSysName)
3760 char *inname = NULL;
3761 char outname[MAXSYSNAME];
3762 afs_int32 setsysname;
3764 struct afs_exporter *exporter;
3765 struct unixuser *au;
3766 afs_int32 pag, error;
3767 int t, count, num = 0, allpags = 0;
3769 struct afs_pdata validate;
3771 AFS_STATCNT(PSetSysName);
3772 if (!afs_globalVFS) {
3773 /* Afsd is NOT running; disable it */
3774 #if defined(KERNEL_HAVE_UERROR)
3775 return (setuerror(EINVAL), EINVAL);
3780 if (afs_pd_getInt(ain, &setsysname) != 0)
3782 if (setsysname & 0x8000) {
3784 setsysname &= ~0x8000;
3789 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3792 for (count = 0; count < setsysname; count++) {
3793 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3796 if (t >= MAXSYSNAME || t <= 0)
3798 /* check for names that can shoot us in the foot */
3799 if (inname[0] == '.' && (inname[1] == 0