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 if (size > AFS_LRALLOCSIZ)
68 memset(apd->ptr, 0, size + 1);
70 memset(apd->ptr, 0, AFS_LRALLOCSIZ);
72 apd->remaining = size;
78 afs_pd_free(struct afs_pdata *apd)
83 if (apd->remaining > AFS_LRALLOCSIZ)
84 osi_Free(apd->ptr, apd->remaining + 1);
86 osi_FreeLargeSpace(apd->ptr);
93 afs_pd_where(struct afs_pdata *apd)
95 return apd ? apd->ptr : NULL;
99 afs_pd_remaining(struct afs_pdata *apd)
101 return apd ? apd->remaining : 0;
105 afs_pd_skip(struct afs_pdata *apd, size_t skip)
107 if (apd == NULL || apd->remaining < skip)
109 apd->remaining -= skip;
116 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
118 if (apd == NULL || apd->remaining < bytes)
120 apd->remaining -= bytes;
121 memcpy(dest, apd->ptr, bytes);
127 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
129 return afs_pd_getBytes(apd, val, sizeof(*val));
133 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
135 return afs_pd_getBytes(apd, val, sizeof(*val));
139 afs_pd_inline(struct afs_pdata *apd, size_t bytes)
143 if (apd == NULL || apd->remaining < bytes)
148 apd->remaining -= bytes;
155 afs_pd_xdrStart(struct afs_pdata *apd, XDR *xdrs, enum xdr_op op) {
156 xdrmem_create(xdrs, apd->ptr, apd->remaining, op);
160 afs_pd_xdrEnd(struct afs_pdata *apd, XDR *xdrs) {
163 pos = xdr_getpos(xdrs);
165 apd->remaining -= pos;
172 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
176 if (apd == NULL || apd->remaining <= 0)
178 len = strlen(apd->ptr) + 1;
181 memcpy(str, apd->ptr, len);
183 apd->remaining -= len;
188 afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
192 if (apd == NULL || apd->remaining <= 0)
194 len = strlen(apd->ptr) + 1;
197 apd->remaining -= len;
202 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
204 if (apd == NULL || apd->remaining < len)
206 memcpy(apd->ptr, bytes, len);
208 apd->remaining -= len;
213 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
215 return afs_pd_putBytes(apd, &val, sizeof(val));
219 afs_pd_putString(struct afs_pdata *apd, char *str) {
221 /* Add 1 so we copy the NULL too */
222 return afs_pd_putBytes(apd, str, strlen(str) +1);
226 * \defgroup pioctl Path IOCTL functions
228 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
231 * the AFS vcache structure in use by pioctl
235 * the AFS vrequest structure
237 * an afs_pdata block describing the data received from the caller
239 * an afs_pdata block describing a pre-allocated block for output
241 * UNIX credentials structure underlying the operation
244 #define DECL_PIOCTL(x) \
245 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
246 struct afs_pdata *ain, struct afs_pdata *aout, \
249 /* Prototypes for pioctl routines */
250 DECL_PIOCTL(PGetFID);
251 DECL_PIOCTL(PSetAcl);
252 DECL_PIOCTL(PStoreBehind);
253 DECL_PIOCTL(PGCPAGs);
254 DECL_PIOCTL(PGetAcl);
257 DECL_PIOCTL(PGetFileCell);
258 DECL_PIOCTL(PGetWSCell);
259 DECL_PIOCTL(PGetUserCell);
260 DECL_PIOCTL(PSetTokens);
261 DECL_PIOCTL(PSetTokens2);
262 DECL_PIOCTL(PGetVolumeStatus);
263 DECL_PIOCTL(PSetVolumeStatus);
265 DECL_PIOCTL(PNewStatMount);
266 DECL_PIOCTL(PGetTokens);
267 DECL_PIOCTL(PGetTokens2);
269 DECL_PIOCTL(PMariner);
270 DECL_PIOCTL(PCheckServers);
271 DECL_PIOCTL(PCheckVolNames);
272 DECL_PIOCTL(PCheckAuth);
273 DECL_PIOCTL(PFindVolume);
274 DECL_PIOCTL(PViceAccess);
275 DECL_PIOCTL(PSetCacheSize);
276 DECL_PIOCTL(PGetCacheSize);
277 DECL_PIOCTL(PRemoveCallBack);
278 DECL_PIOCTL(PNewCell);
279 DECL_PIOCTL(PNewAlias);
280 DECL_PIOCTL(PListCells);
281 DECL_PIOCTL(PListAliases);
282 DECL_PIOCTL(PRemoveMount);
283 DECL_PIOCTL(PGetCellStatus);
284 DECL_PIOCTL(PSetCellStatus);
285 DECL_PIOCTL(PFlushVolumeData);
286 DECL_PIOCTL(PFlushAllVolumeData);
287 DECL_PIOCTL(PGetVnodeXStatus);
288 DECL_PIOCTL(PGetVnodeXStatus2);
289 DECL_PIOCTL(PSetSysName);
290 DECL_PIOCTL(PSetSPrefs);
291 DECL_PIOCTL(PSetSPrefs33);
292 DECL_PIOCTL(PGetSPrefs);
293 DECL_PIOCTL(PExportAfs);
295 DECL_PIOCTL(PTwiddleRx);
296 DECL_PIOCTL(PGetInitParams);
297 DECL_PIOCTL(PGetRxkcrypt);
298 DECL_PIOCTL(PSetRxkcrypt);
299 DECL_PIOCTL(PGetCPrefs);
300 DECL_PIOCTL(PSetCPrefs);
301 DECL_PIOCTL(PFlushMount);
302 DECL_PIOCTL(PRxStatProc);
303 DECL_PIOCTL(PRxStatPeer);
304 DECL_PIOCTL(PPrefetchFromTape);
306 DECL_PIOCTL(PCallBackAddr);
307 DECL_PIOCTL(PDiscon);
308 DECL_PIOCTL(PNFSNukeCreds);
309 DECL_PIOCTL(PNewUuid);
310 DECL_PIOCTL(PPrecache);
311 DECL_PIOCTL(PGetPAG);
312 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
313 DECL_PIOCTL(PSetCachingThreshold);
317 * A macro that says whether we're going to need HandleClientContext().
318 * This is currently used only by the nfs translator.
320 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
321 #define AFS_NEED_CLIENTCONTEXT
324 /* Prototypes for private routines */
325 #ifdef AFS_NEED_CLIENTCONTEXT
326 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
330 int HandleIoctl(struct vcache *avc, afs_int32 acom,
331 struct afs_ioctl *adata);
332 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
333 struct afs_ioctl *ablob, int afollow,
334 afs_ucred_t **acred);
335 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
338 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
339 struct afs_pdata *, struct afs_pdata *,
342 static pioctlFunction VpioctlSw[] = {
347 PGetVolumeStatus, /* 4 */
348 PSetVolumeStatus, /* 5 */
353 PCheckServers, /* 10 */
354 PCheckVolNames, /* 11 */
356 PBogus, /* 13 -- used to be quick check time */
357 PFindVolume, /* 14 */
358 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
359 PBogus, /* 16 -- used to be testing code */
360 PNoop, /* 17 -- used to be enable group */
361 PNoop, /* 18 -- used to be disable group */
362 PBogus, /* 19 -- used to be list group */
363 PViceAccess, /* 20 */
364 PUnlog, /* 21 -- unlog *is* unpag in this system */
365 PGetFID, /* 22 -- get file ID */
366 PBogus, /* 23 -- used to be waitforever */
367 PSetCacheSize, /* 24 */
368 PRemoveCallBack, /* 25 -- flush only the callback */
371 PRemoveMount, /* 28 -- delete mount point */
372 PNewStatMount, /* 29 -- new style mount point stat */
373 PGetFileCell, /* 30 -- get cell name for input file */
374 PGetWSCell, /* 31 -- get cell name for workstation */
375 PMariner, /* 32 - set/get mariner host */
376 PGetUserCell, /* 33 -- get cell name for user */
377 PBogus, /* 34 -- Enable/Disable logging */
378 PGetCellStatus, /* 35 */
379 PSetCellStatus, /* 36 */
380 PFlushVolumeData, /* 37 -- flush all data from a volume */
381 PSetSysName, /* 38 - Set system name */
382 PExportAfs, /* 39 - Export Afs to remote nfs clients */
383 PGetCacheSize, /* 40 - get cache size and usage */
384 PGetVnodeXStatus, /* 41 - get vcache's special status */
385 PSetSPrefs33, /* 42 - Set CM Server preferences... */
386 PGetSPrefs, /* 43 - Get CM Server preferences... */
387 PGag, /* 44 - turn off/on all CM messages */
388 PTwiddleRx, /* 45 - adjust some RX params */
389 PSetSPrefs, /* 46 - Set CM Server preferences... */
390 PStoreBehind, /* 47 - set degree of store behind to be done */
391 PGCPAGs, /* 48 - disable automatic pag gc-ing */
392 PGetInitParams, /* 49 - get initial cm params */
393 PGetCPrefs, /* 50 - get client interface addresses */
394 PSetCPrefs, /* 51 - set client interface addresses */
395 PFlushMount, /* 52 - flush mount symlink data */
396 PRxStatProc, /* 53 - control process RX statistics */
397 PRxStatPeer, /* 54 - control peer RX statistics */
398 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
399 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
400 PBogus, /* 57 -- arla: set file prio */
401 PBogus, /* 58 -- arla: fallback getfh */
402 PBogus, /* 59 -- arla: fallback fhopen */
403 PBogus, /* 60 -- arla: controls xfsdebug */
404 PBogus, /* 61 -- arla: controls arla debug */
405 PBogus, /* 62 -- arla: debug interface */
406 PBogus, /* 63 -- arla: print xfs status */
407 PBogus, /* 64 -- arla: force cache check */
408 PBogus, /* 65 -- arla: break callback */
409 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
410 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
411 PBogus, /* 68 -- arla: fetch stats */
412 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
415 static pioctlFunction CpioctlSw[] = {
417 PNewAlias, /* 1 -- create new cell alias */
418 PListAliases, /* 2 -- list cell aliases */
419 PCallBackAddr, /* 3 -- request addr for callback rxcon */
421 PDiscon, /* 5 -- get/set discon mode */
430 PFlushAllVolumeData, /* 14 */
433 static pioctlFunction OpioctlSw[] = {
435 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
436 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
437 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
439 PNoop /* 2 -- get/set cache-bypass size threshold */
443 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
444 int afs_nobody = NFS_NOBODY;
447 HandleIoctl(struct vcache *avc, afs_int32 acom,
448 struct afs_ioctl *adata)
453 AFS_STATCNT(HandleIoctl);
455 switch (acom & 0xff) {
457 avc->f.states |= CSafeStore;
459 /* SXW - Should we force a MetaData flush for this flag setting */
462 /* case 2 used to be abort store, but this is no longer provided,
463 * since it is impossible to implement under normal Unix.
467 /* return the name of the cell this file is open on */
471 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
473 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
475 if (i > adata->out_size) {
476 /* 0 means we're not interested in the output */
477 if (adata->out_size != 0)
481 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
483 afs_PutCell(tcell, READ_LOCK);
489 case 49: /* VIOC_GETINITPARAMS */
490 if (adata->out_size < sizeof(struct cm_initparams)) {
493 AFS_COPYOUT(&cm_initParams, adata->out,
494 sizeof(struct cm_initparams), code);
506 return code; /* so far, none implemented */
510 /* For aix we don't temporarily bypass ioctl(2) but rather do our
511 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
512 * is now called from afs_gn_ioctl.
515 afs_ioctl(struct vcache *tvc, int cmd, int arg)
517 struct afs_ioctl data;
520 AFS_STATCNT(afs_ioctl);
521 if (((cmd >> 8) & 0xff) == 'V') {
522 /* This is a VICEIOCTL call */
523 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
526 error = HandleIoctl(tvc, cmd, &data);
529 /* No-op call; just return. */
533 # if defined(AFS_AIX32_ENV)
534 # if defined(AFS_AIX51_ENV)
537 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
539 # else /* __64BIT__ */
541 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
543 # endif /* __64BIT__ */
546 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
547 # endif /* AFS_AIX51_ENV */
552 # ifdef AFS_AIX51_ENV
555 } u_uap, *uap = &u_uap;
558 int ioctlDone = 0, code = 0;
560 AFS_STATCNT(afs_xioctl);
564 # ifdef AFS_AIX51_ENV
568 if (setuerror(getf(uap->fd, &fd))) {
571 if (fd->f_type == DTYPE_VNODE) {
572 /* good, this is a vnode; next see if it is an AFS vnode */
573 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
574 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
575 /* This is an AFS vnode */
576 if (((uap->com >> 8) & 0xff) == 'V') {
577 struct afs_ioctl *datap;
579 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
580 code=copyin_afs_ioctl((char *)uap->arg, datap);
582 osi_FreeSmallSpace(datap);
584 # if defined(AFS_AIX41_ENV)
587 return (setuerror(code), code);
589 code = HandleIoctl(tvc, uap->com, datap);
590 osi_FreeSmallSpace(datap);
593 # if defined(AFS_AIX41_ENV)
600 # if defined(AFS_AIX41_ENV)
602 # if defined(AFS_AIX51_ENV)
604 code = okioctl(fdes, com, arg, ext, arg2, arg3);
605 # else /* __64BIT__ */
606 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
607 # endif /* __64BIT__ */
608 # else /* !AFS_AIX51_ENV */
609 code = okioctl(fdes, com, arg, ext);
610 # endif /* AFS_AIX51_ENV */
612 # elif defined(AFS_AIX32_ENV)
613 okioctl(fdes, com, arg, ext);
616 # if defined(KERNEL_HAVE_UERROR)
619 # if !defined(AFS_AIX41_ENV)
620 return (getuerror()? -1 : u.u_ioctlrv);
622 return getuerror()? -1 : 0;
629 #elif defined(AFS_SGI_ENV)
630 # if defined(AFS_SGI65_ENV)
631 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
632 rval_t * rvalp, struct vopbd * vbds)
634 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
635 rval_t * rvalp, struct vopbd * vbds)
638 struct afs_ioctl data;
644 AFS_STATCNT(afs_ioctl);
645 if (((cmd >> 8) & 0xff) == 'V') {
646 /* This is a VICEIOCTL call */
647 error = copyin_afs_ioctl(arg, &data);
650 locked = ISAFS_GLOCK();
653 error = HandleIoctl(tvc, cmd, &data);
658 /* No-op call; just return. */
662 #elif defined(AFS_SUN5_ENV)
663 struct afs_ioctl_sys {
670 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
674 int ioctlDone = 0, code = 0;
676 AFS_STATCNT(afs_xioctl);
680 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
681 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
682 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
683 /* This is an AFS vnode */
684 if (((uap->com >> 8) & 0xff) == 'V') {
685 struct afs_ioctl *datap;
687 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
688 code=copyin_afs_ioctl((char *)uap->arg, datap);
690 osi_FreeSmallSpace(datap);
695 code = HandleIoctl(tvc, uap->com, datap);
696 osi_FreeSmallSpace(datap);
704 code = ioctl(uap, rvp);
708 #elif defined(AFS_LINUX22_ENV)
709 struct afs_ioctl_sys {
714 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
717 struct afs_ioctl_sys ua, *uap = &ua;
721 AFS_STATCNT(afs_xioctl);
726 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
727 /* This is an AFS vnode */
728 if (((uap->com >> 8) & 0xff) == 'V') {
729 struct afs_ioctl *datap;
731 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
732 code = copyin_afs_ioctl((char *)uap->arg, datap);
734 osi_FreeSmallSpace(datap);
738 code = HandleIoctl(tvc, uap->com, datap);
739 osi_FreeSmallSpace(datap);
747 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
755 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
759 int ioctlDone = 0, code = 0;
761 AFS_STATCNT(afs_xioctl);
762 if ((code = fdgetf(p, uap->fd, &fd)))
764 if (fd->f_type == DTYPE_VNODE) {
765 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
766 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
767 /* This is an AFS vnode */
768 if (((uap->com >> 8) & 0xff) == 'V') {
769 struct afs_ioctl *datap;
771 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
772 code = copyin_afs_ioctl((char *)uap->arg, datap);
774 osi_FreeSmallSpace(datap);
778 code = HandleIoctl(tvc, uap->com, datap);
779 osi_FreeSmallSpace(datap);
787 return ioctl(p, uap, retval);
791 #elif defined(AFS_XBSD_ENV)
792 # if defined(AFS_FBSD_ENV)
795 afs_xioctl(struct thread *td, struct ioctl_args *uap,
798 afs_proc_t *p = td->td_proc;
799 # elif defined(AFS_NBSD_ENV)
801 afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
811 afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
814 struct filedesc *fdp;
816 int ioctlDone = 0, code = 0;
819 AFS_STATCNT(afs_xioctl);
820 #if defined(AFS_NBSD40_ENV)
821 fdp = p->l_proc->p_fd;
825 #if defined(AFS_NBSD50_ENV)
826 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL)
828 #elif defined(AFS_FBSD100_ENV)
829 if ((uap->fd >= fdp->fd_nfiles)
830 || ((fd = fdp->fd_ofiles[uap->fd].fde_file) == NULL))
833 if ((uap->fd >= fdp->fd_nfiles)
834 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL))
837 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
839 /* first determine whether this is any sort of vnode */
840 if (fd->f_type == DTYPE_VNODE) {
841 /* good, this is a vnode; next see if it is an AFS vnode */
842 # if defined(AFS_OBSD_ENV)
844 IsAfsVnode((struct vnode *)fd->
845 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
847 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
849 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)) {
850 /* This is an AFS vnode */
851 #if defined(AFS_NBSD50_ENV)
852 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
854 if (((uap->com >> 8) & 0xff) == 'V') {
856 struct afs_ioctl *datap;
858 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
859 #if defined(AFS_NBSD50_ENV)
860 code = copyin_afs_ioctl(SCARG(uap, data), datap);
862 code = copyin_afs_ioctl((char *)uap->arg, datap);
865 osi_FreeSmallSpace(datap);
869 #if defined(AFS_NBSD50_ENV)
870 code = HandleIoctl(tvc, SCARG(uap, com), datap);
872 code = HandleIoctl(tvc, uap->com, datap);
874 osi_FreeSmallSpace(datap);
881 #if defined(AFS_NBSD50_ENV)
882 fd_putfile(SCARG(uap, fd));
886 # if defined(AFS_FBSD_ENV)
887 # if (__FreeBSD_version >= 900044)
888 return sys_ioctl(td, uap);
890 return ioctl(td, uap);
892 # elif defined(AFS_OBSD_ENV)
893 code = sys_ioctl(p, uap, retval);
894 # elif defined(AFS_NBSD_ENV)
895 code = sys_ioctl(p, uap, retval);
901 #elif defined(UKERNEL)
909 } *uap = (struct a *)get_user_struct()->u_ap;
912 int ioctlDone = 0, code = 0;
914 AFS_STATCNT(afs_xioctl);
919 /* first determine whether this is any sort of vnode */
920 if (fd->f_type == DTYPE_VNODE) {
921 /* good, this is a vnode; next see if it is an AFS vnode */
922 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
923 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
924 /* This is an AFS vnode */
925 if (((uap->com >> 8) & 0xff) == 'V') {
926 struct afs_ioctl *datap;
928 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
929 code=copyin_afs_ioctl((char *)uap->arg, datap);
931 osi_FreeSmallSpace(datap);
934 return (setuerror(code), code);
936 code = HandleIoctl(tvc, uap->com, datap);
937 osi_FreeSmallSpace(datap);
950 #endif /* AFS_HPUX102_ENV */
952 #if defined(AFS_SGI_ENV)
953 /* "pioctl" system call entry point; just pass argument to the parameterized
962 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
966 AFS_STATCNT(afs_pioctl);
968 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
970 # ifdef AFS_SGI64_ENV
977 #elif defined(AFS_FBSD_ENV)
979 afs_pioctl(struct thread *td, void *args, int *retval)
986 } *uap = (struct a *)args;
988 AFS_STATCNT(afs_pioctl);
989 return (afs_syscall_pioctl
990 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
993 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
995 afs_pioctl(afs_proc_t *p, void *args, int *retval)
1002 } *uap = (struct a *)args;
1004 AFS_STATCNT(afs_pioctl);
1005 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
1006 return (afs_syscall_pioctl
1007 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1010 return (afs_syscall_pioctl
1011 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1012 # if defined(AFS_FBSD_ENV)
1015 p->p_cred->pc_ucred));
1022 /* macro to avoid adding any more #ifdef's to pioctl code. */
1023 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1024 #define PIOCTL_FREE_CRED() crfree(credp)
1026 #define PIOCTL_FREE_CRED()
1031 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1032 rval_t *vvp, afs_ucred_t *credp)
1034 #ifdef AFS_DARWIN100_ENV
1035 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1036 int follow, afs_ucred_t *credp)
1037 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1038 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1041 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1045 struct afs_ioctl data;
1046 #ifdef AFS_NEED_CLIENTCONTEXT
1047 afs_ucred_t *tmpcred = NULL;
1049 #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)
1050 afs_ucred_t *foreigncreds = NULL;
1053 struct vnode *vp = NULL;
1054 #ifdef AFS_AIX41_ENV
1055 struct ucred *credp = crref(); /* don't free until done! */
1057 #ifdef AFS_LINUX22_ENV
1058 cred_t *credp = crref(); /* don't free until done! */
1062 AFS_STATCNT(afs_syscall_pioctl);
1064 follow = 1; /* compat. with old venus */
1065 code = copyin_afs_ioctl(cmarg, &data);
1068 #if defined(KERNEL_HAVE_UERROR)
1073 if ((com & 0xff) == PSetClientContext) {
1074 #ifdef AFS_NEED_CLIENTCONTEXT
1075 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1076 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1078 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1082 crfree(foreigncreds);
1085 #if defined(KERNEL_HAVE_UERROR)
1086 return (setuerror(code), code);
1091 #else /* AFS_NEED_CLIENTCONTEXT */
1093 #endif /* AFS_NEED_CLIENTCONTEXT */
1095 #ifdef AFS_NEED_CLIENTCONTEXT
1098 * We could have done without temporary setting the u.u_cred below
1099 * (foreigncreds could be passed as param the pioctl modules)
1100 * but calls such as afs_osi_suser() doesn't allow that since it
1101 * references u.u_cred directly. We could, of course, do something
1102 * like afs_osi_suser(cred) which, I think, is better since it
1103 * generalizes and supports multi cred environments...
1105 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1107 credp = foreigncreds;
1108 #elif defined(AFS_AIX41_ENV)
1109 tmpcred = crref(); /* XXX */
1110 crset(foreigncreds);
1111 #elif defined(AFS_HPUX101_ENV)
1112 tmpcred = p_cred(u.u_procp);
1113 set_p_cred(u.u_procp, foreigncreds);
1114 #elif defined(AFS_SGI_ENV)
1115 tmpcred = OSI_GET_CURRENT_CRED();
1116 OSI_SET_CURRENT_CRED(foreigncreds);
1119 u.u_cred = foreigncreds;
1122 #endif /* AFS_NEED_CLIENTCONTEXT */
1123 if ((com & 0xff) == 15) {
1124 /* special case prefetch so entire pathname eval occurs in helper process.
1125 * otherwise, the pioctl call is essentially useless */
1126 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1128 Prefetch(path, &data, follow,
1129 foreigncreds ? foreigncreds : credp);
1131 code = Prefetch(path, &data, follow, osi_curcred());
1134 #if defined(KERNEL_HAVE_UERROR)
1141 #ifdef AFS_AIX41_ENV
1143 lookupname(path, USR, follow, NULL, &vp,
1144 foreigncreds ? foreigncreds : credp);
1146 #ifdef AFS_LINUX22_ENV
1147 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1149 vp = (struct vnode *)dp->d_inode;
1151 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1152 #endif /* AFS_LINUX22_ENV */
1153 #endif /* AFS_AIX41_ENV */
1157 #if defined(KERNEL_HAVE_UERROR)
1165 #if defined(AFS_SUN510_ENV)
1166 if (vp && !IsAfsVnode(vp)) {
1167 struct vnode *realvp;
1169 #ifdef AFS_SUN511_ENV
1170 (VOP_REALVP(vp, &realvp, NULL) == 0)
1172 (VOP_REALVP(vp, &realvp) == 0)
1175 struct vnode *oldvp = vp;
1183 /* now make the call if we were passed no file, or were passed an AFS file */
1184 if (!vp || IsAfsVnode(vp)) {
1185 #if defined(AFS_SUN5_ENV)
1186 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1187 #elif defined(AFS_AIX41_ENV)
1189 struct ucred *cred1, *cred2;
1192 cred1 = cred2 = foreigncreds;
1194 cred1 = cred2 = credp;
1196 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1197 if (cred1 != cred2) {
1198 /* something changed the creds */
1202 #elif defined(AFS_HPUX101_ENV)
1204 struct ucred *cred = p_cred(u.u_procp);
1205 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1207 #elif defined(AFS_SGI_ENV)
1210 credp = OSI_GET_CURRENT_CRED();
1211 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1213 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1214 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1215 #elif defined(UKERNEL)
1216 code = afs_HandlePioctl(vp, com, &data, follow,
1217 &(get_user_struct()->u_cred));
1219 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1222 #if defined(KERNEL_HAVE_UERROR)
1225 code = EINVAL; /* not in /afs */
1230 #if defined(AFS_NEED_CLIENTCONTEXT)
1232 #ifdef AFS_AIX41_ENV
1233 crset(tmpcred); /* restore original credentials */
1235 #if defined(AFS_HPUX101_ENV)
1236 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1237 #elif defined(AFS_SGI_ENV)
1238 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1239 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1240 credp = tmpcred; /* restore original credentials */
1242 osi_curcred() = tmpcred; /* restore original credentials */
1243 #endif /* AFS_HPUX101_ENV */
1244 crfree(foreigncreds);
1247 #endif /* AFS_NEED_CLIENTCONTEXT */
1249 #ifdef AFS_LINUX22_ENV
1251 * Holding the global lock when calling dput can cause a deadlock
1252 * when the kernel calls back into afs_dentry_iput
1258 #if defined(AFS_FBSD80_ENV)
1259 if (VOP_ISLOCKED(vp))
1261 #endif /* AFS_FBSD80_ENV */
1262 AFS_RELE(vp); /* put vnode back */
1266 #if defined(KERNEL_HAVE_UERROR)
1269 return (getuerror());
1275 #ifdef AFS_DARWIN100_ENV
1277 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1278 int follow, afs_ucred_t *credp)
1280 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1281 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1286 #define MAXPIOCTLTOKENLEN \
1287 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1290 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1291 struct afs_ioctl *ablob, int afollow,
1292 afs_ucred_t **acred)
1295 struct vrequest *treq = NULL;
1297 afs_int32 function, device;
1298 struct afs_pdata input, output;
1299 struct afs_pdata copyInput, copyOutput;
1301 pioctlFunction *pioctlSw;
1303 struct afs_fakestat_state fakestate;
1305 memset(&input, 0, sizeof(input));
1306 memset(&output, 0, sizeof(output));
1308 avc = avp ? VTOAFS(avp) : NULL;
1309 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1310 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1311 AFS_STATCNT(HandlePioctl);
1313 code = afs_CreateReq(&treq, *acred);
1317 afs_InitFakeStat(&fakestate);
1319 code = afs_EvalFakeStat(&avc, &fakestate, treq);
1323 device = (acom & 0xff00) >> 8;
1325 case 'V': /* Original pioctls */
1326 pioctlSw = VpioctlSw;
1327 pioctlSwSize = sizeof(VpioctlSw);
1329 case 'C': /* Coordinated/common pioctls */
1330 pioctlSw = CpioctlSw;
1331 pioctlSwSize = sizeof(CpioctlSw);
1333 case 'O': /* Coordinated/common pioctls */
1334 pioctlSw = OpioctlSw;
1335 pioctlSwSize = sizeof(OpioctlSw);
1341 function = acom & 0xff;
1342 if (function >= (pioctlSwSize / sizeof(char *))) {
1347 /* Do all range checking before continuing */
1348 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1349 ablob->in_size < 0 || ablob->out_size < 0) {
1354 code = afs_pd_alloc(&input, ablob->in_size);
1358 if (ablob->in_size > 0) {
1359 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1360 input.ptr[input.remaining] = '\0';
1365 if ((function == 8 && device == 'V') ||
1366 (function == 7 && device == 'C')) { /* PGetTokens */
1367 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1369 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1375 copyOutput = output;
1378 (*pioctlSw[function]) (avc, function, treq, ©Input,
1379 ©Output, acred);
1381 outSize = copyOutput.ptr - output.ptr;
1383 if (code == 0 && ablob->out_size > 0) {
1384 if (outSize > ablob->out_size) {
1385 code = E2BIG; /* data wont fit in user buffer */
1386 } else if (outSize) {
1387 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1392 afs_pd_free(&input);
1393 afs_pd_free(&output);
1395 afs_PutFakeStat(&fakestate);
1396 code = afs_CheckCode(code, treq, 41);
1397 afs_DestroyReq(treq);
1402 * VIOCGETFID (22) - Get file ID quickly
1406 * \param[in] ain not in use
1407 * \param[out] aout fid of requested file
1409 * \retval EINVAL Error if some of the initial arguments aren't set
1411 * \post get the file id of some file
1413 DECL_PIOCTL(PGetFID)
1415 AFS_STATCNT(PGetFID);
1418 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1424 * VIOCSETAL (1) - Set access control list
1428 * \param[in] ain the ACL being set
1429 * \param[out] aout the ACL being set returned
1431 * \retval EINVAL Error if some of the standard args aren't set
1433 * \post Changed ACL, via direct writing to the wire
1436 dummy_PSetAcl(char *ain, char *aout)
1441 DECL_PIOCTL(PSetAcl)
1444 struct afs_conn *tconn;
1445 struct AFSOpaque acl;
1446 struct AFSVolSync tsync;
1447 struct AFSFetchStatus OutStatus;
1448 struct rx_connection *rxconn;
1451 AFS_STATCNT(PSetAcl);
1455 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1457 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1458 if (acl.AFSOpaque_len > 1024)
1462 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1464 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1467 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1468 &acl, &OutStatus, &tsync);
1473 } while (afs_Analyze
1474 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1475 SHARED_LOCK, NULL));
1477 /* now we've forgotten all of the access info */
1478 ObtainWriteLock(&afs_xcbhash, 455);
1480 afs_DequeueCallback(avc);
1481 avc->f.states &= ~(CStatd | CUnique);
1482 ReleaseWriteLock(&afs_xcbhash);
1483 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1484 osi_dnlc_purgedp(avc);
1486 /* SXW - Should we flush metadata here? */
1490 int afs_defaultAsynchrony = 0;
1493 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1497 * \param[in] ain sbstruct (store behind structure) input
1498 * \param[out] aout resulting sbstruct
1501 * Error if the user doesn't have super-user credentials
1503 * Error if there isn't enough access to not check the mode bits
1506 * Changes either the default asynchrony (the amount of data that
1507 * can remain to be written when the cache manager returns control
1508 * to the user), or the asyncrony for the specified file.
1510 DECL_PIOCTL(PStoreBehind)
1512 struct sbstruct sbr;
1514 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1517 if (sbr.sb_default != -1) {
1518 if (afs_osi_suser(*acred))
1519 afs_defaultAsynchrony = sbr.sb_default;
1524 if (avc && (sbr.sb_thisfile != -1)) {
1526 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1527 avc->asynchrony = sbr.sb_thisfile;
1532 memset(&sbr, 0, sizeof(sbr));
1533 sbr.sb_default = afs_defaultAsynchrony;
1535 sbr.sb_thisfile = avc->asynchrony;
1538 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1542 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1546 * \param[in] ain not in use
1547 * \param[out] aout not in use
1549 * \retval EACCES Error if the user doesn't have super-user credentials
1551 * \post set the gcpags to GCPAGS_USERDISABLED
1553 DECL_PIOCTL(PGCPAGs)
1555 if (!afs_osi_suser(*acred)) {
1558 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1563 * VIOCGETAL (2) - Get access control list
1567 * \param[in] ain not in use
1568 * \param[out] aout the ACL
1570 * \retval EINVAL Error if some of the standard args aren't set
1571 * \retval ERANGE Error if the vnode of the file id is too large
1572 * \retval -1 Error if getting the ACL failed
1574 * \post Obtain the ACL, based on file ID
1577 * There is a hack to tell which type of ACL is being returned, checks
1578 * the top 2-bytes of the input size to judge what type of ACL it is,
1579 * only for dfs xlator ACLs
1581 DECL_PIOCTL(PGetAcl)
1583 struct AFSOpaque acl;
1584 struct AFSVolSync tsync;
1585 struct AFSFetchStatus OutStatus;
1587 struct afs_conn *tconn;
1589 struct rx_connection *rxconn;
1592 AFS_STATCNT(PGetAcl);
1595 Fid.Volume = avc->f.fid.Fid.Volume;
1596 Fid.Vnode = avc->f.fid.Fid.Vnode;
1597 Fid.Unique = avc->f.fid.Fid.Unique;
1598 if (avc->f.states & CForeign) {
1600 * For a dfs xlator acl we have a special hack so that the
1601 * xlator will distinguish which type of acl will return. So
1602 * we currently use the top 2-bytes (vals 0-4) to tell which
1603 * type of acl to bring back. Horrible hack but this will
1604 * cause the least number of changes to code size and interfaces.
1606 if (Fid.Vnode & 0xc0000000)
1608 Fid.Vnode |= (ain->remaining << 30);
1610 acl.AFSOpaque_val = aout->ptr;
1612 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1614 acl.AFSOpaque_val[0] = '\0';
1615 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1617 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1622 } while (afs_Analyze
1623 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1624 SHARED_LOCK, NULL));
1627 if (acl.AFSOpaque_len == 0)
1628 afs_pd_skip(aout, 1); /* leave the NULL */
1630 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1636 * PNoop returns success. Used for functions which are not implemented
1637 * or are no longer in use.
1641 * \retval Always returns success
1644 * Functions involved in this:
1645 * 17 (VIOCENGROUP) -- used to be enable group;
1646 * 18 (VIOCDISGROUP) -- used to be disable group;
1647 * 2 (?) -- get/set cache-bypass size threshold
1656 * PBogus returns fail. Used for functions which are not implemented or
1657 * are no longer in use.
1661 * \retval EINVAL Always returns this value
1664 * Functions involved in this:
1670 * 13 (VIOCGETTIME) -- used to be quick check time;
1671 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1672 * 16 (VIOCNOP) -- used to be testing code;
1673 * 19 (VIOCLISTGROUPS) -- used to be list group;
1674 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1675 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1676 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1677 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1678 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1679 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1680 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1681 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1682 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1683 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1684 * 68 (?) -- arla: fetch stats;
1688 AFS_STATCNT(PBogus);
1693 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1697 * \param[in] ain not in use (avc used to pass in file id)
1698 * \param[out] aout cell name
1700 * \retval EINVAL Error if some of the standard args aren't set
1701 * \retval ESRCH Error if the file isn't part of a cell
1703 * \post Get a cell based on a passed in file id
1705 DECL_PIOCTL(PGetFileCell)
1709 AFS_STATCNT(PGetFileCell);
1712 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1716 if (afs_pd_putString(aout, tcell->cellName) != 0)
1719 afs_PutCell(tcell, READ_LOCK);
1724 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1728 * \param[in] ain not in use
1729 * \param[out] aout cell name
1732 * Error if the afs daemon hasn't started yet
1734 * Error if the machine isn't part of a cell, for whatever reason
1736 * \post Get the primary cell that the machine is a part of.
1738 DECL_PIOCTL(PGetWSCell)
1740 struct cell *tcell = NULL;
1742 AFS_STATCNT(PGetWSCell);
1743 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1744 return EIO; /* Inappropriate ioctl for device */
1746 tcell = afs_GetPrimaryCell(READ_LOCK);
1747 if (!tcell) /* no primary cell? */
1750 if (afs_pd_putString(aout, tcell->cellName) != 0)
1752 afs_PutCell(tcell, READ_LOCK);
1757 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1761 * \param[in] ain not in use (user id found via areq)
1762 * \param[out] aout cell name
1765 * Error if the user id doesn't have a primary cell specified
1767 * \post Get the primary cell for a certain user, based on the user's uid
1769 DECL_PIOCTL(PGetUserCell)
1772 struct unixuser *tu;
1775 AFS_STATCNT(PGetUserCell);
1776 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1777 return EIO; /* Inappropriate ioctl for device */
1779 /* return the cell name of the primary cell for this user */
1780 i = UHash(areq->uid);
1781 ObtainWriteLock(&afs_xuser, 224);
1782 for (tu = afs_users[i]; tu; tu = tu->next) {
1783 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1785 ReleaseWriteLock(&afs_xuser);
1786 afs_LockUser(tu, READ_LOCK, 0);
1791 tcell = afs_GetCell(tu->cell, READ_LOCK);
1792 afs_PutUser(tu, READ_LOCK);
1796 if (afs_pd_putString(aout, tcell->cellName) != 0)
1798 afs_PutCell(tcell, READ_LOCK);
1801 ReleaseWriteLock(&afs_xuser);
1806 /* Work out which cell we're changing tokens for */
1808 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1816 if (cellName && strlen(cellName) > 0) {
1817 cell = afs_GetCellByName(cellName, READ_LOCK);
1819 cell = afs_GetPrimaryCell(READ_LOCK);
1830 *cellNum = cell->cellNum;
1831 afs_PutCell(cell, READ_LOCK);
1838 _settok_setParentPag(afs_ucred_t **cred) {
1840 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1842 osi_procname(procname, 256);
1843 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1844 MyPidxx2Pid(MyPidxx), procname);
1845 return setpag(osi_curproc(), cred, -1, &pag, 1);
1847 return setpag(cred, -1, &pag, 1);
1852 * VIOCSETTOK (3) - Set authentication tokens
1856 * \param[in] ain the krb tickets from which to set the afs tokens
1857 * \param[out] aout not in use
1860 * Error if the ticket is either too long or too short
1862 * Error if the AFS initState is below 101
1864 * Error if the cell for which the Token is being set can't be found
1867 * Set the Tokens for a specific cell name, unless there is none set,
1868 * then default to primary
1871 DECL_PIOCTL(PSetTokens)
1876 struct unixuser *tu;
1877 struct ClearToken clear;
1881 struct vrequest *treq = NULL;
1882 afs_int32 flag, set_parent_pag = 0;
1884 AFS_STATCNT(PSetTokens);
1885 if (!afs_resourceinit_flag) {
1889 if (afs_pd_getInt(ain, &stLen) != 0)
1892 stp = afs_pd_where(ain); /* remember where the ticket is */
1893 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1894 return EINVAL; /* malloc may fail */
1895 if (afs_pd_skip(ain, stLen) != 0)
1898 if (afs_pd_getInt(ain, &size) != 0)
1900 if (size != sizeof(struct ClearToken))
1903 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1906 if (clear.AuthHandle == -1)
1907 clear.AuthHandle = 999; /* more rxvab compat stuff */
1909 if (afs_pd_remaining(ain) != 0) {
1910 /* still stuff left? we've got primary flag and cell name.
1913 if (afs_pd_getInt(ain, &flag) != 0)
1916 /* some versions of gcc appear to need != 0 in order to get this
1918 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1923 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1926 code = _settok_tokenCell(cellName, &cellNum, NULL);
1930 /* default to primary cell, primary id */
1931 code = _settok_tokenCell(NULL, &cellNum, &flag);
1936 if (set_parent_pag) {
1937 if (_settok_setParentPag(acred) == 0) {
1938 code = afs_CreateReq(&treq, *acred);
1946 /* now we just set the tokens */
1947 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1948 /* Set tokens destroys any that are already there */
1949 afs_FreeTokens(&tu->tokens);
1950 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1952 afs_stats_cmfullperf.authent.TicketUpdates++;
1953 afs_ComputePAGStats();
1954 #endif /* AFS_NOSTATS */
1955 tu->states |= UHasTokens;
1956 tu->states &= ~UTokensBad;
1957 afs_SetPrimary(tu, flag);
1958 tu->tokenTime = osi_Time();
1959 afs_ResetUserConns(tu);
1960 afs_NotifyUser(tu, UTokensObtained);
1961 afs_PutUser(tu, WRITE_LOCK);
1962 afs_DestroyReq(treq);
1968 * VIOCGETVOLSTAT (4) - Get volume status
1972 * \param[in] ain not in use
1973 * \param[out] aout status of the volume
1975 * \retval EINVAL Error if some of the standard args aren't set
1978 * The status of a volume (based on the FID of the volume), or an
1979 * offline message /motd
1981 DECL_PIOCTL(PGetVolumeStatus)
1984 char *offLineMsg = afs_osi_Alloc(256);
1985 char *motd = afs_osi_Alloc(256);
1986 struct afs_conn *tc;
1988 struct AFSFetchVolumeStatus volstat;
1990 struct rx_connection *rxconn;
1993 osi_Assert(offLineMsg != NULL);
1994 osi_Assert(motd != NULL);
1995 AFS_STATCNT(PGetVolumeStatus);
2002 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2004 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
2007 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
2008 &Name, &offLineMsg, &motd);
2013 } while (afs_Analyze
2014 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
2015 SHARED_LOCK, NULL));
2019 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
2020 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2022 if (afs_pd_putString(aout, volName) != 0)
2024 if (afs_pd_putString(aout, offLineMsg) != 0)
2026 if (afs_pd_putString(aout, motd) != 0)
2029 afs_osi_Free(offLineMsg, 256);
2030 afs_osi_Free(motd, 256);
2035 * VIOCSETVOLSTAT (5) - Set volume status
2040 * values to set the status at, offline message, message of the day,
2041 * volume name, minimum quota, maximum quota
2043 * status of a volume, offlines messages, minimum quota, maximumm quota
2046 * Error if some of the standard args aren't set
2048 * Error if the volume is read only, or a backup volume
2050 * Error if the volume can't be accessed
2052 * Error if the volume name, offline message, and motd are too big
2055 * Set the status of a volume, including any offline messages,
2056 * a minimum quota, and a maximum quota
2058 DECL_PIOCTL(PSetVolumeStatus)
2063 struct afs_conn *tc;
2065 struct AFSFetchVolumeStatus volstat;
2066 struct AFSStoreVolumeStatus storeStat;
2068 struct rx_connection *rxconn;
2071 AFS_STATCNT(PSetVolumeStatus);
2075 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2077 if (tvp->states & (VRO | VBackup)) {
2078 afs_PutVolume(tvp, READ_LOCK);
2081 afs_PutVolume(tvp, READ_LOCK);
2086 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2089 if (afs_pd_getStringPtr(ain, &volName) != 0)
2091 if (strlen(volName) > 32)
2094 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2096 if (strlen(offLineMsg) > 256)
2099 if (afs_pd_getStringPtr(ain, &motd) != 0)
2101 if (strlen(motd) > 256)
2104 /* Done reading ... */
2107 if (volstat.MinQuota != -1) {
2108 storeStat.MinQuota = volstat.MinQuota;
2109 storeStat.Mask |= AFS_SETMINQUOTA;
2111 if (volstat.MaxQuota != -1) {
2112 storeStat.MaxQuota = volstat.MaxQuota;
2113 storeStat.Mask |= AFS_SETMAXQUOTA;
2116 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2118 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2121 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2122 volName, offLineMsg, motd);
2127 } while (afs_Analyze
2128 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2129 SHARED_LOCK, NULL));
2133 /* we are sending parms back to make compat. with prev system. should
2134 * change interface later to not ask for current status, just set new
2137 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2139 if (afs_pd_putString(aout, volName) != 0)
2141 if (afs_pd_putString(aout, offLineMsg) != 0)
2143 if (afs_pd_putString(aout, motd) != 0)
2150 * VIOCFLUSH (6) - Invalidate cache entry
2154 * \param[in] ain not in use
2155 * \param[out] aout not in use
2157 * \retval EINVAL Error if some of the standard args aren't set
2159 * \post Flush any information the cache manager has on an entry
2163 AFS_STATCNT(PFlush);
2166 ObtainWriteLock(&avc->lock, 225);
2167 afs_ResetVCache(avc, *acred, 0);
2168 ReleaseWriteLock(&avc->lock);
2173 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2178 * the last component in a path, related to mountpoint that we're
2179 * looking for information about
2181 * volume, cell, link data
2183 * \retval EINVAL Error if some of the standard args aren't set
2184 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2185 * \retval EIO Error if the link data can't be accessed
2187 * \post Get the volume, and cell, as well as the link data for a mount point
2189 DECL_PIOCTL(PNewStatMount)
2194 struct VenusFid tfid;
2197 struct sysname_info sysState;
2198 afs_size_t offset, len;
2200 AFS_STATCNT(PNewStatMount);
2204 if (afs_pd_getStringPtr(ain, &name) != 0)
2207 code = afs_VerifyVCache(avc, areq);
2210 if (vType(avc) != VDIR) {
2213 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2216 Check_AtSys(avc, name, &sysState, areq);
2217 ObtainReadLock(&tdc->lock);
2219 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2220 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2221 ReleaseReadLock(&tdc->lock);
2222 afs_PutDCache(tdc); /* we're done with the data */
2223 bufp = sysState.name;
2227 tfid.Cell = avc->f.fid.Cell;
2228 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2229 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2230 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2232 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2238 if (tvc->mvstat != AFS_MVSTAT_MTPT) {
2243 ObtainWriteLock(&tvc->lock, 226);
2244 code = afs_HandleLink(tvc, areq);
2246 if (tvc->linkData) {
2247 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2250 /* we have the data */
2251 if (afs_pd_putString(aout, tvc->linkData) != 0)
2257 ReleaseWriteLock(&tvc->lock);
2260 if (sysState.allocked)
2261 osi_FreeLargeSpace(bufp);
2266 * A helper function to get the n'th cell which a particular user has tokens
2267 * for. This is racy. If new tokens are added whilst we're iterating, then
2268 * we may return some cells twice. If tokens expire mid run, then we'll
2269 * miss some cells from our output. So, could be better, but that would
2270 * require an interface change.
2273 static struct unixuser *
2274 getNthCell(afs_int32 uid, afs_int32 iterator) {
2276 struct unixuser *tu = NULL;
2279 ObtainReadLock(&afs_xuser);
2280 for (tu = afs_users[i]; tu; tu = tu->next) {
2281 if (tu->uid == uid && (tu->states & UHasTokens)) {
2282 if (iterator-- == 0)
2283 break; /* are we done yet? */
2289 ReleaseReadLock(&afs_xuser);
2291 afs_LockUser(tu, READ_LOCK, 0);
2298 * VIOCGETTOK (8) - Get authentication tokens
2302 * \param[in] ain cellid to return tokens for
2303 * \param[out] aout token
2306 * Error if the afs daemon hasn't started yet
2308 * Error if the input parameter is out of the bounds of the available
2311 * Error if there aren't tokens for this cell
2314 * If the input paramater exists, get the token that corresponds to
2315 * the parameter value, if there is no token at this value, get the
2316 * token for the first cell
2318 * \notes "it's a weird interface (from comments in the code)"
2321 DECL_PIOCTL(PGetTokens)
2324 struct unixuser *tu = NULL;
2325 union tokenUnion *token;
2326 afs_int32 iterator = 0;
2331 AFS_STATCNT(PGetTokens);
2332 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2333 return EIO; /* Inappropriate ioctl for device */
2335 /* weird interface. If input parameter is present, it is an integer and
2336 * we're supposed to return the parm'th tokens for this unix uid.
2337 * If not present, we just return tokens for cell 1.
2338 * If counter out of bounds, return EDOM.
2339 * If no tokens for the particular cell, return ENOTCONN.
2340 * Also, if this mysterious parm is present, we return, along with the
2341 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2342 * at the end, in that order.
2344 newStyle = (afs_pd_remaining(ain) > 0);
2346 if (afs_pd_getInt(ain, &iterator) != 0)
2350 tu = getNthCell(areq->uid, iterator);
2352 cellNum = afs_GetPrimaryCellNum();
2354 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2359 if (!(tu->states & UHasTokens)
2360 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2361 tu->states |= (UTokensBad | UNeedsReset);
2362 afs_NotifyUser(tu, UTokensDropped);
2363 afs_PutUser(tu, READ_LOCK);
2366 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2368 /* If they don't have an RXKAD token, but do have other tokens,
2369 * then sadly there's nothing this interface can do to help them. */
2373 /* for compat, we try to return 56 byte tix if they fit */
2374 iterator = token->rxkad.ticketLen;
2376 iterator = 56; /* # of bytes we're returning */
2378 if (afs_pd_putInt(aout, iterator) != 0)
2380 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2382 if (token->rxkad.ticketLen < 56) {
2383 /* Tokens are always 56 bytes or larger */
2384 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2389 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2391 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2392 sizeof(struct ClearToken)) != 0)
2396 /* put out primary id and cell name, too */
2397 iterator = (tu->states & UPrimary ? 1 : 0);
2398 if (afs_pd_putInt(aout, iterator) != 0)
2400 tcell = afs_GetCell(tu->cell, READ_LOCK);
2402 if (afs_pd_putString(aout, tcell->cellName) != 0)
2404 afs_PutCell(tcell, READ_LOCK);
2406 if (afs_pd_putString(aout, "") != 0)
2409 /* Got here, all is good */
2412 afs_PutUser(tu, READ_LOCK);
2417 * VIOCUNLOG (9) - Invalidate tokens
2421 * \param[in] ain not in use
2422 * \param[out] aout not in use
2424 * \retval EIO Error if the afs daemon hasn't been started yet
2426 * \post remove tokens from a user, specified by the user id
2428 * \notes sets the token's time to 0, which then causes it to be removed
2429 * \notes Unlog is the same as un-pag in OpenAFS
2434 struct unixuser *tu;
2436 AFS_STATCNT(PUnlog);
2437 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2438 return EIO; /* Inappropriate ioctl for device */
2440 i = UHash(areq->uid);
2441 ObtainWriteLock(&afs_xuser, 227);
2442 for (tu = afs_users[i]; tu; tu = tu->next) {
2443 if (tu->uid == areq->uid) {
2445 ReleaseWriteLock(&afs_xuser);
2447 afs_LockUser(tu, WRITE_LOCK, 366);
2449 tu->states &= ~UHasTokens;
2450 afs_FreeTokens(&tu->tokens);
2451 afs_NotifyUser(tu, UTokensDropped);
2452 /* We have to drop the lock over the call to afs_ResetUserConns,
2453 * since it obtains the afs_xvcache lock. We could also keep
2454 * the lock, and modify ResetUserConns to take parm saying we
2455 * obtained the lock already, but that is overkill. By keeping
2456 * the "tu" pointer held over the released lock, we guarantee
2457 * that we won't lose our place, and that we'll pass over
2458 * every user conn that existed when we began this call.
2460 afs_ResetUserConns(tu);
2461 afs_PutUser(tu, WRITE_LOCK);
2462 ObtainWriteLock(&afs_xuser, 228);
2464 /* set the expire times to 0, causes
2465 * afs_GCUserData to remove this entry
2468 #endif /* UKERNEL */
2471 ReleaseWriteLock(&afs_xuser);
2476 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2480 * \param[in] ain host address to be set
2481 * \param[out] aout old host address
2484 * depending on whether or not a variable is set, either get the host
2485 * for the cache manager monitor, or set the old address and give it
2488 * \notes Errors turn off mariner
2490 DECL_PIOCTL(PMariner)
2492 afs_int32 newHostAddr;
2493 afs_int32 oldHostAddr;
2495 AFS_STATCNT(PMariner);
2497 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2500 oldHostAddr = 0xffffffff; /* disabled */
2502 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2505 if (newHostAddr == 0xffffffff) {
2506 /* disable mariner operations */
2508 } else if (newHostAddr) {
2510 afs_marinerHost = newHostAddr;
2513 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2520 * VIOCCKSERV (10) - Check that servers are up
2524 * \param[in] ain name of the cell
2525 * \param[out] aout current down server list
2527 * \retval EIO Error if the afs daemon hasn't started yet
2528 * \retval EACCES Error if the user doesn't have super-user credentials
2529 * \retval ENOENT Error if we are unable to obtain the cell
2532 * Either a fast check (where it doesn't contact servers) or a
2533 * local check (checks local cell only)
2535 DECL_PIOCTL(PCheckServers)
2540 char *cellName = NULL;
2542 struct chservinfo *pcheck;
2544 AFS_STATCNT(PCheckServers);
2546 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2547 return EIO; /* Inappropriate ioctl for device */
2549 /* This is tricky, because we need to peak at the datastream to see
2550 * what we're getting. For now, let's cheat. */
2552 /* ain contains either an int32 or a string */
2553 if (ain->remaining == 0)
2556 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2557 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2561 if (pcheck->tinterval >= 0) {
2562 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2564 if (pcheck->tinterval > 0) {
2565 if (!afs_osi_suser(*acred))
2567 afs_probe_interval = pcheck->tinterval;
2571 temp = pcheck->tflags;
2573 cellName = pcheck->tbuffer;
2574 } else { /* For pre afs3.3 versions */
2575 if (afs_pd_getInt(ain, &temp) != 0)
2577 if (afs_pd_remaining(ain) > 0) {
2578 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2584 * 1: fast check, don't contact servers.
2585 * 2: local cell only.
2588 /* have cell name, too */
2589 cellp = afs_GetCellByName(cellName, READ_LOCK);
2594 if (!cellp && (temp & 2)) {
2595 /* use local cell */
2596 cellp = afs_GetPrimaryCell(READ_LOCK);
2598 if (!(temp & 1)) { /* if not fast, call server checker routine */
2599 afs_CheckServers(1, cellp); /* check down servers */
2600 afs_CheckServers(0, cellp); /* check up servers */
2602 /* now return the current down server list */
2603 ObtainReadLock(&afs_xserver);
2604 for (i = 0; i < NSERVERS; i++) {
2605 for (ts = afs_servers[i]; ts; ts = ts->next) {
2606 if (cellp && ts->cell != cellp)
2607 continue; /* cell spec'd and wrong */
2608 if ((ts->flags & SRVR_ISDOWN)
2609 && ts->addr->sa_portal != ts->cell->vlport) {
2610 afs_pd_putInt(aout, ts->addr->sa_ip);
2614 ReleaseReadLock(&afs_xserver);
2616 afs_PutCell(cellp, READ_LOCK);
2621 * VIOCCKBACK (11) - Check backup volume mappings
2625 * \param[in] ain not in use
2626 * \param[out] aout not in use
2628 * \retval EIO Error if the afs daemon hasn't started yet
2631 * Check the root volume, and then check the names if the volume
2632 * check variable is set to force, has expired, is busy, or if
2633 * the mount points variable is set
2635 DECL_PIOCTL(PCheckVolNames)
2637 AFS_STATCNT(PCheckVolNames);
2638 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2639 return EIO; /* Inappropriate ioctl for device */
2641 afs_CheckRootVolume();
2642 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2643 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2648 * VIOCCKCONN (12) - Check connections for a user
2652 * \param[in] ain not in use
2653 * \param[out] aout not in use
2656 * Error if no user is specififed, the user has no tokens set,
2657 * or if the user's tokens are bad
2660 * check to see if a user has the correct authentication.
2661 * If so, allow access.
2663 * \notes Check the connections to all the servers specified
2665 DECL_PIOCTL(PCheckAuth)
2669 struct sa_conn_vector *tcv;
2670 struct unixuser *tu;
2673 AFS_STATCNT(PCheckAuth);
2674 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2675 return EIO; /* Inappropriate ioctl for device */
2678 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2682 /* we have a user */
2683 ObtainReadLock(&afs_xsrvAddr);
2684 ObtainReadLock(&afs_xconn);
2686 /* any tokens set? */
2687 if ((tu->states & UHasTokens) == 0)
2689 /* all connections in cell 1 working? */
2690 for (i = 0; i < NSERVERS; i++) {
2691 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2692 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2693 if (tcv->user == tu && (tu->states & UTokensBad))
2698 ReleaseReadLock(&afs_xsrvAddr);
2699 ReleaseReadLock(&afs_xconn);
2700 afs_PutUser(tu, READ_LOCK);
2702 if (afs_pd_putInt(aout, retValue) != 0)
2708 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2713 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2719 AFS_STATCNT(Prefetch);
2722 tp = osi_AllocLargeSpace(1024);
2723 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2725 osi_FreeLargeSpace(tp);
2728 if (afs_BBusy()) { /* do this as late as possible */
2729 osi_FreeLargeSpace(tp);
2730 return EWOULDBLOCK; /* pretty close */
2732 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2733 (afs_size_t) 0, tp, (void *)0, (void *)0);
2738 * VIOCWHEREIS (14) - Find out where a volume is located
2742 * \param[in] ain not in use
2743 * \param[out] aout volume location
2745 * \retval EINVAL Error if some of the default arguments don't exist
2746 * \retval ENODEV Error if there is no such volume
2748 * \post fine a volume, based on a volume file id
2750 * \notes check each of the servers specified
2752 DECL_PIOCTL(PFindVolume)
2759 AFS_STATCNT(PFindVolume);
2762 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2766 for (i = 0; i < AFS_MAXHOSTS; i++) {
2767 ts = tvp->serverHost[i];
2770 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2775 if (i < AFS_MAXHOSTS) {
2776 /* still room for terminating NULL, add it on */
2777 if (afs_pd_putInt(aout, 0) != 0) {
2783 afs_PutVolume(tvp, READ_LOCK);
2788 * VIOCACCESS (20) - Access using PRS_FS bits
2792 * \param[in] ain PRS_FS bits
2793 * \param[out] aout not in use
2795 * \retval EINVAL Error if some of the initial arguments aren't set
2796 * \retval EACCES Error if access is denied
2798 * \post check to make sure access is allowed
2800 DECL_PIOCTL(PViceAccess)
2805 AFS_STATCNT(PViceAccess);
2809 code = afs_VerifyVCache(avc, areq);
2813 if (afs_pd_getInt(ain, &temp) != 0)
2816 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2824 * VIOC_GETPAG (13) - Get PAG value
2828 * \param[in] ain not in use
2829 * \param[out] aout PAG value or NOPAG
2831 * \post get PAG value for the caller's cred
2833 DECL_PIOCTL(PGetPAG)
2837 pag = PagInCred(*acred);
2839 return afs_pd_putInt(aout, pag);
2842 DECL_PIOCTL(PPrecache)
2846 /*AFS_STATCNT(PPrecache);*/
2847 if (!afs_osi_suser(*acred))
2850 if (afs_pd_getInt(ain, &newValue) != 0)
2853 afs_preCache = newValue*1024;
2858 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2862 * \param[in] ain the size the venus cache should be set to
2863 * \param[out] aout not in use
2865 * \retval EACCES Error if the user doesn't have super-user credentials
2866 * \retval EROFS Error if the cache is set to be in memory
2869 * Set the cache size based on user input. If no size is given,
2870 * set it to the default OpenAFS cache size.
2873 * recompute the general cache parameters for every single block allocated
2875 DECL_PIOCTL(PSetCacheSize)
2880 AFS_STATCNT(PSetCacheSize);
2882 if (!afs_osi_suser(*acred))
2884 /* too many things are setup initially in mem cache version */
2885 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2887 if (afs_pd_getInt(ain, &newValue) != 0)
2890 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2892 if (newValue < afs_min_cache)
2893 afs_cacheBlocks = afs_min_cache;
2895 afs_cacheBlocks = newValue;
2897 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2898 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2899 afs_MaybeWakeupTruncateDaemon();
2900 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2901 afs_osi_Wait(1000, 0, 0);
2902 afs_MaybeWakeupTruncateDaemon();
2907 #define MAXGCSTATS 16
2909 * VIOCGETCACHEPARMS (40) - Get cache stats
2913 * \param[in] ain afs index flags
2914 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2916 * \post Get the cache blocks, and how many of the cache blocks there are
2918 DECL_PIOCTL(PGetCacheSize)
2920 afs_int32 results[MAXGCSTATS];
2922 struct dcache * tdc;
2925 AFS_STATCNT(PGetCacheSize);
2927 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2928 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2929 } else if (afs_pd_remaining(ain) == 0) {
2935 memset(results, 0, sizeof(results));
2936 results[0] = afs_cacheBlocks;
2937 results[1] = afs_blocksUsed;
2938 results[2] = afs_cacheFiles;
2941 for (i = 0; i < afs_cacheFiles; i++) {
2942 if (afs_indexFlags[i] & IFFree) results[3]++;
2944 } else if (2 == flags){
2945 for (i = 0; i < afs_cacheFiles; i++) {
2946 if (afs_indexFlags[i] & IFFree) results[3]++;
2947 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2948 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2949 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2950 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2951 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2953 tdc = afs_indexTable[i];
2956 size = tdc->validPos;
2957 if ( 0 < size && size < (1<<12) ) results[10]++;
2958 else if (size < (1<<14) ) results[11]++;
2959 else if (size < (1<<16) ) results[12]++;
2960 else if (size < (1<<18) ) results[13]++;
2961 else if (size < (1<<20) ) results[14]++;
2962 else if (size >= (1<<20) ) results[15]++;
2966 return afs_pd_putBytes(aout, results, sizeof(results));
2970 * VIOCFLUSHCB (25) - Flush callback only
2974 * \param[in] ain not in use
2975 * \param[out] aout not in use
2977 * \retval EINVAL Error if some of the standard args aren't set
2978 * \retval 0 0 returned if the volume is set to read-only
2981 * Flushes callbacks, by setting the length of callbacks to one,
2982 * setting the next callback to be sent to the CB_DROPPED value,
2983 * and then dequeues everything else.
2985 DECL_PIOCTL(PRemoveCallBack)
2987 struct afs_conn *tc;
2989 struct AFSCallBack CallBacks_Array[1];
2990 struct AFSCBFids theFids;
2991 struct AFSCBs theCBs;
2992 struct rx_connection *rxconn;
2995 AFS_STATCNT(PRemoveCallBack);
2998 if (avc->f.states & CRO)
2999 return 0; /* read-only-ness can't change */
3000 ObtainWriteLock(&avc->lock, 229);
3001 theFids.AFSCBFids_len = 1;
3002 theCBs.AFSCBs_len = 1;
3003 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
3004 theCBs.AFSCBs_val = CallBacks_Array;
3005 CallBacks_Array[0].CallBackType = CB_DROPPED;
3006 if (avc->callback) {
3008 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3010 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
3012 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3016 /* don't set code on failure since we wouldn't use it */
3017 } while (afs_Analyze
3018 (tc, rxconn, code, &avc->f.fid, areq,
3019 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3021 ObtainWriteLock(&afs_xcbhash, 457);
3022 afs_DequeueCallback(avc);
3024 avc->f.states &= ~(CStatd | CUnique);
3025 ReleaseWriteLock(&afs_xcbhash);
3026 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3027 osi_dnlc_purgedp(avc);
3029 ReleaseWriteLock(&avc->lock);
3034 * VIOCNEWCELL (26) - Configure new cell
3039 * the name of the cell, the hosts that will be a part of the cell,
3040 * whether or not it's linked with another cell, the other cell it's
3041 * linked with, the file server port, and the volume server port
3045 * \retval EIO Error if the afs daemon hasn't started yet
3046 * \retval EACCES Error if the user doesn't have super-user cedentials
3047 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3049 * \post creates a new cell
3051 DECL_PIOCTL(PNewCell)
3053 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3054 char *newcell = NULL;
3055 char *linkedcell = NULL;
3057 afs_int32 linkedstate = 0;
3058 afs_int32 fsport = 0, vlport = 0;
3061 AFS_STATCNT(PNewCell);
3062 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3063 return EIO; /* Inappropriate ioctl for device */
3065 if (!afs_osi_suser(*acred))
3068 if (afs_pd_getInt(ain, &magic) != 0)
3070 if (magic != 0x12345678)
3073 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3074 * server addresses while the 3.5 fs newcell command passes
3075 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3078 * This whole logic is bogus, because it relies on the newer command
3079 * sending its 12th address as 0.
3081 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3084 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3085 if (newcell[0] != '\0') {
3088 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3091 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3092 if (afs_pd_getBytes(ain, &cellHosts,
3093 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3095 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3098 if (afs_pd_getInt(ain, &fsport) != 0)
3101 fsport = 0; /* Privileged ports not allowed */
3103 if (afs_pd_getInt(ain, &vlport) != 0)
3106 vlport = 0; /* Privileged ports not allowed */
3108 if (afs_pd_getInt(ain, &ls) != 0)
3111 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3115 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3117 linkedstate |= CLinkedCell;
3120 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3122 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3127 DECL_PIOCTL(PNewAlias)
3129 /* create a new cell alias */
3130 char *realName, *aliasName;
3132 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3133 return EIO; /* Inappropriate ioctl for device */
3135 if (!afs_osi_suser(*acred))
3138 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3140 if (afs_pd_getStringPtr(ain, &realName) != 0)
3143 return afs_NewCellAlias(aliasName, realName);
3147 * VIOCGETCELL (27) - Get cell info
3151 * \param[in] ain The cell index of a specific cell
3152 * \param[out] aout list of servers in the cell
3154 * \retval EIO Error if the afs daemon hasn't started yet
3155 * \retval EDOM Error if there is no cell asked about
3157 * \post Lists the cell's server names and and addresses
3159 DECL_PIOCTL(PListCells)
3161 afs_int32 whichCell;
3162 struct cell *tcell = 0;
3166 AFS_STATCNT(PListCells);
3167 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3168 return EIO; /* Inappropriate ioctl for device */
3170 if (afs_pd_getInt(ain, &whichCell) != 0)
3173 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3179 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3180 if (tcell->cellHosts[i] == 0)
3182 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3185 for (;i < AFS_MAXCELLHOSTS; i++) {
3186 if (afs_pd_putInt(aout, 0) != 0)
3189 if (afs_pd_putString(aout, tcell->cellName) != 0)
3194 afs_PutCell(tcell, READ_LOCK);
3198 DECL_PIOCTL(PListAliases)
3200 afs_int32 whichAlias;
3201 struct cell_alias *tcalias = 0;
3204 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3205 return EIO; /* Inappropriate ioctl for device */
3207 if (afs_pd_getInt(ain, &whichAlias) != 0)
3210 tcalias = afs_GetCellAlias(whichAlias);
3211 if (tcalias == NULL)
3215 if (afs_pd_putString(aout, tcalias->alias) != 0)
3217 if (afs_pd_putString(aout, tcalias->cell) != 0)
3222 afs_PutCellAlias(tcalias);
3227 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3231 * \param[in] ain the name of the file in this dir to remove
3232 * \param[out] aout not in use
3235 * Error if some of the standard args aren't set
3237 * Error if the argument to remove is not a directory
3239 * Error if there is no cache to remove the mount point from or
3240 * if a vcache doesn't exist
3243 * Ensure that everything is OK before deleting the mountpoint.
3244 * If not, don't delete. Delete a mount point based on a file id.
3246 DECL_PIOCTL(PRemoveMount)
3251 struct sysname_info sysState;
3252 afs_size_t offset, len;
3253 struct afs_conn *tc;
3256 struct AFSFetchStatus OutDirStatus;
3257 struct VenusFid tfid;
3258 struct AFSVolSync tsync;
3259 struct rx_connection *rxconn;
3262 /* "ain" is the name of the file in this dir to remove */
3264 AFS_STATCNT(PRemoveMount);
3267 if (afs_pd_getStringPtr(ain, &name) != 0)
3270 code = afs_VerifyVCache(avc, areq);
3273 if (vType(avc) != VDIR)
3276 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3279 Check_AtSys(avc, name, &sysState, areq);
3280 ObtainReadLock(&tdc->lock);
3282 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3283 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3284 ReleaseReadLock(&tdc->lock);
3285 bufp = sysState.name;
3290 tfid.Cell = avc->f.fid.Cell;
3291 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3292 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3293 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3295 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3302 if (tvc->mvstat != AFS_MVSTAT_MTPT) {
3308 ObtainWriteLock(&tvc->lock, 230);
3309 code = afs_HandleLink(tvc, areq);
3311 if (tvc->linkData) {
3312 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3317 ReleaseWriteLock(&tvc->lock);
3318 osi_dnlc_purgedp(tvc);
3324 ObtainWriteLock(&avc->lock, 231);
3325 osi_dnlc_remove(avc, bufp, tvc);
3327 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3329 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3332 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3333 &OutDirStatus, &tsync);
3338 } while (afs_Analyze
3339 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3340 SHARED_LOCK, NULL));
3345 ReleaseWriteLock(&avc->lock);
3349 /* we have the thing in the cache */
3350 ObtainWriteLock(&tdc->lock, 661);
3351 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3352 /* we can do it locally */
3353 code = afs_dir_Delete(tdc, bufp);
3355 ZapDCE(tdc); /* surprise error -- invalid value */
3359 ReleaseWriteLock(&tdc->lock);
3360 afs_PutDCache(tdc); /* drop ref count */
3362 avc->f.states &= ~CUnique; /* For the dfs xlator */
3363 ReleaseWriteLock(&avc->lock);
3366 if (sysState.allocked)
3367 osi_FreeLargeSpace(bufp);
3372 * VIOC_GETCELLSTATUS (35) - Get cell status info
3376 * \param[in] ain The cell you want status information on
3377 * \param[out] aout cell state (as a struct)
3379 * \retval EIO Error if the afs daemon hasn't started yet
3380 * \retval ENOENT Error if the cell doesn't exist
3382 * \post Returns the state of the cell as defined in a struct cell
3384 DECL_PIOCTL(PGetCellStatus)
3390 AFS_STATCNT(PGetCellStatus);
3391 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3392 return EIO; /* Inappropriate ioctl for device */
3394 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3397 tcell = afs_GetCellByName(cellName, READ_LOCK);
3400 temp = tcell->states;
3401 afs_PutCell(tcell, READ_LOCK);
3403 return afs_pd_putInt(aout, temp);
3407 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3412 * The cell you want to set information about, and the values you
3417 * \retval EIO Error if the afs daemon hasn't started yet
3418 * \retval EACCES Error if the user doesn't have super-user credentials
3421 * Set the state of the cell in a defined struct cell, based on
3422 * whether or not SetUID is allowed
3424 DECL_PIOCTL(PSetCellStatus)
3428 afs_int32 flags0, flags1;
3430 if (!afs_osi_suser(*acred))
3432 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3433 return EIO; /* Inappropriate ioctl for device */
3435 if (afs_pd_getInt(ain, &flags0) != 0)
3437 if (afs_pd_getInt(ain, &flags1) != 0)
3439 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3442 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3445 if (flags0 & CNoSUID)
3446 tcell->states |= CNoSUID;
3448 tcell->states &= ~CNoSUID;
3449 afs_PutCell(tcell, WRITE_LOCK);
3454 FlushVolumeData(struct VenusFid *afid, afs_ucred_t * acred)
3462 afs_int32 volume = 0;
3463 struct afs_q *tq, *uq;
3464 #ifdef AFS_DARWIN80_ENV
3471 volume = afid->Fid.Volume; /* who to zap */
3476 * Clear stat'd flag from all vnodes from this volume; this will
3477 * invalidate all the vcaches associated with the volume.
3480 ObtainReadLock(&afs_xvcache);
3481 for (i = (afid ? VCHashV(afid) : 0); i < VCSIZE; i = (afid ? VCSIZE : i+1)) {
3482 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3485 if (all || (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell)) {
3486 if (tvc->f.states & CVInit) {
3487 ReleaseReadLock(&afs_xvcache);
3488 afs_osi_Sleep(&tvc->f.states);
3491 #ifdef AFS_DARWIN80_ENV
3492 if (tvc->f.states & CDeadVnode) {
3493 ReleaseReadLock(&afs_xvcache);
3494 afs_osi_Sleep(&tvc->f.states);
3500 if (vnode_ref(vp)) {
3509 ReleaseReadLock(&afs_xvcache);
3510 ObtainWriteLock(&tvc->lock, 232);
3511 afs_ResetVCache(tvc, acred, 1);
3512 ReleaseWriteLock(&tvc->lock);
3513 #ifdef AFS_DARWIN80_ENV
3514 vnode_put(AFSTOV(tvc));
3516 ObtainReadLock(&afs_xvcache);
3518 /* our tvc ptr is still good until now */
3523 ReleaseReadLock(&afs_xvcache);
3526 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3527 for (i = 0; i < afs_cacheFiles; i++) {
3528 if (!(afs_indexFlags[i] & IFEverUsed))
3529 continue; /* never had any data */
3530 tdc = afs_GetValidDSlot(i);
3534 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3535 ReleaseReadLock(&tdc->tlock);
3536 if (all || (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell)) {
3537 if (!(afs_indexFlags[i] & (IFDataMod | IFFree | IFDiscarded))) {
3538 /* if the file is modified, but has a ref cnt of only 1,
3539 * then someone probably has the file open and is writing
3540 * into it. Better to skip flushing such a file, it will be
3541 * brought back immediately on the next write anyway.
3543 * Skip if already freed.
3545 * If we *must* flush, then this code has to be rearranged
3546 * to call afs_storeAllSegments() first */
3547 afs_FlushDCache(tdc);
3551 ReleaseReadLock(&tdc->tlock);
3553 afs_PutDCache(tdc); /* bumped by getdslot */
3555 ReleaseWriteLock(&afs_xdcache);
3557 ObtainReadLock(&afs_xvolume);
3558 for (i = all ? 0 : VHash(volume); i < NVOLS; i++) {
3559 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3560 if (all || tv->volume == volume) {
3561 afs_ResetVolumeInfo(tv);
3568 ReleaseReadLock(&afs_xvolume);
3570 /* probably, a user is doing this, probably, because things are screwed up.
3571 * maybe it's the dnlc's fault? */
3576 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3580 * \param[in] ain not in use (args in avc)
3581 * \param[out] aout not in use
3583 * \retval EINVAL Error if some of the standard args aren't set
3584 * \retval EIO Error if the afs daemon hasn't started yet
3587 * Flush all cached contents of a volume. Exactly what stays and what
3588 * goes depends on the platform.
3591 * Does not flush a file that a user has open and is using, because
3592 * it will be re-created on next write. Also purges the dnlc,
3593 * because things are screwed up.
3595 DECL_PIOCTL(PFlushVolumeData)
3597 AFS_STATCNT(PFlushVolumeData);
3600 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3601 return EIO; /* Inappropriate ioctl for device */
3603 FlushVolumeData(&avc->f.fid, *acred);
3608 * VIOC_FLUSHALL (14) - Flush whole volume's data for all volumes
3612 * \param[in] ain not in use
3613 * \param[out] aout not in use
3615 * \retval EINVAL Error if some of the standard args aren't set
3616 * \retval EIO Error if the afs daemon hasn't started yet
3619 * Flush all cached contents. Exactly what stays and what
3620 * goes depends on the platform.
3623 * Does not flush a file that a user has open and is using, because
3624 * it will be re-created on next write. Also purges the dnlc,
3625 * because things are screwed up.
3627 DECL_PIOCTL(PFlushAllVolumeData)
3629 AFS_STATCNT(PFlushAllVolumeData);
3631 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3632 return EIO; /* Inappropriate ioctl for device */
3634 FlushVolumeData(NULL, *acred);
3639 * VIOCGETVCXSTATUS (41) - gets vnode x status
3644 * not in use (avc used)
3646 * vcxstat: the file id, the data version, any lock, the parent vnode,
3647 * the parent unique id, the trunc position, the callback, cbExpires,
3648 * what access is being made, what files are open,
3649 * any users executing/writing, the flock count, the states,
3653 * Error if some of the initial default arguments aren't set
3655 * Error if access to check the mode bits is denied
3658 * gets stats for the vnode, a struct listed in vcxstat
3660 DECL_PIOCTL(PGetVnodeXStatus)
3663 struct vcxstat stat;
3666 /* AFS_STATCNT(PGetVnodeXStatus); */
3669 code = afs_VerifyVCache(avc, areq);
3672 if (vType(avc) == VDIR)
3673 mode = PRSFS_LOOKUP;
3676 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3679 memset(&stat, 0, sizeof(struct vcxstat));
3680 stat.fid = avc->f.fid;
3681 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3682 stat.lock = avc->lock;
3683 stat.parentVnode = avc->f.parent.vnode;
3684 stat.parentUnique = avc->f.parent.unique;
3685 hset(stat.flushDV, avc->flushDV);
3686 hset(stat.mapDV, avc->mapDV);
3687 stat.truncPos = avc->f.truncPos;
3688 { /* just grab the first two - won't break anything... */
3689 struct axscache *ac;
3691 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3692 stat.randomUid[i] = ac->uid;
3693 stat.randomAccess[i] = ac->axess;
3696 stat.callback = afs_data_pointer_to_int32(avc->callback);
3697 stat.cbExpires = avc->cbExpires;
3698 stat.anyAccess = avc->f.anyAccess;
3699 stat.opens = avc->opens;
3700 stat.execsOrWriters = avc->execsOrWriters;
3701 stat.flockCount = avc->flockCount;
3702 stat.mvstat = avc->mvstat;
3703 stat.states = avc->f.states;
3704 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3708 DECL_PIOCTL(PGetVnodeXStatus2)
3711 struct vcxstat2 stat;
3716 code = afs_VerifyVCache(avc, areq);
3719 if (vType(avc) == VDIR)
3720 mode = PRSFS_LOOKUP;
3723 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3726 memset(&stat, 0, sizeof(struct vcxstat2));
3728 stat.cbExpires = avc->cbExpires;
3729 stat.anyAccess = avc->f.anyAccess;
3730 stat.mvstat = avc->mvstat;
3731 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3733 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3738 * VIOC_AFS_SYSNAME (38) - Change @sys value
3742 * \param[in] ain new value for @sys
3743 * \param[out] aout count, entry, list (debug values?)
3746 * Error if afsd isn't running, the new sysname is too large,
3747 * the new sysname causes issues (starts with a . or ..),
3748 * there is no PAG set in the credentials, or the user of a PAG
3751 * Error if the user doesn't have super-user credentials
3754 * Set the value of @sys if these things work: if the input isn't
3755 * too long or if input doesn't start with . or ..
3758 * We require root for local sysname changes, but not for remote
3759 * (since we don't really believe remote uids anyway)
3760 * outname[] shouldn't really be needed- this is left as an
3761 * exercise for the reader.
3763 DECL_PIOCTL(PSetSysName)
3765 char *inname = NULL;
3766 char outname[MAXSYSNAME];
3767 afs_int32 setsysname;
3769 struct afs_exporter *exporter;
3770 struct unixuser *au;
3771 afs_int32 pag, error;
3772 int t, count, num = 0, allpags = 0;
3774 struct afs_pdata validate;
3776 AFS_STATCNT(PSetSysName);
3777 if (!afs_globalVFS) {
3778 /* Afsd is NOT running; disable it */
3779 #if defined(KERNEL_HAVE_UERROR)
3780 return (setuerror(EINVAL), EINVAL);
3785 if (afs_pd_getInt(ain, &setsysname) != 0)
3787 if (setsysname & 0x8000) {
3789 setsysname &= ~0x8000;
3794 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3797 for (count = 0; count < setsysname; count++) {
3798 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3801 if (t >= MAXSYSNAME || t <= 0)
3803 /* check for names that can shoot us in the foot */
3804 if (inname[0] == '.' && (inname[1] == 0
3805 || (inname[1] == '.' && inname[2] == 0)))
3808 /* args ok, so go back to the beginning of that section */
3810 if (afs_pd_getStringPtr(ain, &inname) != 0)
3814 if (afs_rmtsys_enable && (afs_cr_gid(*acred) == RMTUSER_REQ ||
3815 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV)) { /* Handles all exporters */
3816 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3819 pag = PagInCred(*acred);
3821 return EINVAL; /* Better than panicing */
3823 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3824 return EINVAL; /* Better than panicing */
3826 if (!(exporter = au->exporter)) {
3827 afs_PutUser(au, READ_LOCK);
3828 return EINVAL; /* Better than panicing */
3830 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3833 if (error == ENODEV)
3834 foundname = 0; /* sysname not set yet! */
3836 afs_PutUser(au, READ_LOCK);
3841 strcpy(outname, sysnamelist[0]);
3843 afs_PutUser(au, READ_LOCK);
3847 /* Not xlating, so local case */
3849 osi_Panic("PSetSysName: !afs_sysname\n");
3850 if (!setsysname) { /* user just wants the info */
3851 strcpy(outname, afs_sysname);
3852 foundname = afs_sysnamecount;
3853 sysnamelist = afs_sysnamelist;
3854 } else { /* Local guy; only root can change sysname */
3855 if (!afs_osi_suser(*acred))
3858 /* allpags makes no sense for local use */
3862 /* clear @sys entries from the dnlc, once afs_lookup can
3863 * do lookups of @sys entries and thinks it can trust them */
3864 /* privs ok, store the entry, ... */
3866 if (strlen(inname) >= MAXSYSNAME-1)
3868 strcpy(afs_sysname, inname);
3870 if (setsysname > 1) { /* ... or list */
3871 for (count = 1; count < setsysname; ++count) {
3872 if (!afs_sysnamelist[count])
3874 ("PSetSysName: no afs_sysnamelist entry to write\n");
3875 if (afs_pd_getString(ain, afs_sysnamelist[count],
3880 afs_sysnamecount = setsysname;
3885 if (afs_pd_putInt(aout, foundname) != 0)
3888 if (afs_pd_putString(aout, outname) != 0)
3890 for (count = 1; count < foundname; ++count) { /* ... or list. */
3891 if (!sysnamelist[count])
3893 ("PSetSysName: no afs_sysnamelist entry to read\n");
3894 t = strlen(sysnamelist[count]);
3895 if (t >= MAXSYSNAME)
3896 osi_Panic("PSetSysName: sysname entry garbled\n");
3897 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3905 /* sequential search through the list of touched cells is not a good
3906 * long-term solution here. For small n, though, it should be just
3907 * fine. Should consider special-casing the local cell for large n.
3908 * Likewise for PSetSPrefs.
3910 * s - number of ids in array l[] -- NOT index of last id
3911 * l - array of cell ids which have volumes that need to be sorted
3912 * vlonly - sort vl servers or file servers?
3915 ReSortCells_cb(struct cell *cell, void *arg)
3917 afs_int32 *p = (afs_int32 *) arg;
3918 afs_int32 *l = p + 1;
3921 for (i = 0; i < s; i++) {
3922 if (l[i] == cell->cellNum) {
3923 ObtainWriteLock(&cell->lock, 690);
3924 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3925 ReleaseWriteLock(&cell->lock);
3933 ReSortCells(int s, afs_int32 * l, int vlonly)
3941 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3942 osi_Assert(p != NULL);
3944 memcpy(p + 1, l, s * sizeof(afs_int32));
3945 afs_TraverseCells(&ReSortCells_cb, p);
3946 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3950 ObtainReadLock(&afs_xvolume);
3951 for (i = 0; i < NVOLS; i++) {
3952 for (j = afs_volumes[i]; j; j = j->next) {
3953 for (k = 0; k < s; k++)
3954 if (j->cell == l[k]) {
3955 ObtainWriteLock(&j->lock, 233);
3956 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3957 ReleaseWriteLock(&j->lock);
3962 ReleaseReadLock(&afs_xvolume);
3966 static int debugsetsp = 0;
3968 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3971 int i, j, k, matches, touchedSize;
3972 struct server *srvr = NULL;
3973 afs_int32 touched[34];
3977 for (k = 0; k < num; sp++, k++) {
3979 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3982 ObtainReadLock(&afs_xserver);
3984 i = SHash(sp->host.s_addr);
3985 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3986 if (sa->sa_ip == sp->host.s_addr) {
3988 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3989 || (sa->sa_portal == AFS_FSPORT);
3990 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3997 if (sa && matches) { /* found one! */
3999 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
4001 sa->sa_iprank = sp->rank + afs_randomMod15();
4002 afs_SortOneServer(sa->server);
4005 /* if we don't know yet what cell it's in, this is moot */
4006 for (j = touchedSize - 1;
4007 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
4008 /* is it in our list of touched cells ? */ ;
4009 if (j < 0) { /* no, it's not */
4010 touched[touchedSize++] = srvr->cell->cellNum;
4011 if (touchedSize >= 32) { /* watch for ovrflow */
4012 ReleaseReadLock(&afs_xserver);
4013 ReSortCells(touchedSize, touched, vlonly);
4015 ObtainReadLock(&afs_xserver);
4021 ReleaseReadLock(&afs_xserver);
4022 /* if we didn't find one, start to create one. */
4023 /* Note that it doesn't have a cell yet... */
4025 afs_uint32 temp = sp->host.s_addr;
4027 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
4028 WRITE_LOCK, (afsUUID *) 0, 0, NULL);
4029 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
4030 afs_PutServer(srvr, WRITE_LOCK);
4032 } /* for all cited preferences */
4034 ReSortCells(touchedSize, touched, vlonly);
4039 * VIOC_SETPREFS (46) - Set server ranks
4041 * \param[in] ain the sprefs value you want the sprefs to be set to
4042 * \param[out] aout not in use
4045 * Error if the afs daemon hasn't started yet
4047 * Error if the user doesn't have super-user credentials
4049 * Error if the struct setsprefs is too large or if it multiplied
4050 * by the number of servers is too large
4052 * \post set the sprefs using the afs_setsprefs() function
4054 DECL_PIOCTL(PSetSPrefs)
4056 struct setspref *ssp;
4060 AFS_STATCNT(PSetSPrefs);
4062 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4063 return EIO; /* Inappropriate ioctl for device */
4065 if (!afs_osi_suser(*acred))
4068 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4069 * of arrays. But, i'm not quite brave enough to change it yet. */
4071 ainSize = ain->remaining;
4073 if (ainSize < sizeof(struct setspref))
4076 ssp = (struct setspref *)ainPtr;
4077 if (ainSize < (sizeof(struct setspref)
4078 + sizeof(struct spref) * (ssp->num_servers-1)))
4081 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4082 (ssp->flags & DBservers));
4087 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4089 * \param[in] ain the server preferences to be set
4090 * \param[out] aout not in use
4092 * \retval EIO Error if the afs daemon hasn't started yet
4093 * \retval EACCES Error if the user doesn't have super-user credentials
4095 * \post set the server preferences, calling a function
4097 * \notes this may only be performed by the local root user.
4099 DECL_PIOCTL(PSetSPrefs33)
4101 AFS_STATCNT(PSetSPrefs);
4102 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4103 return EIO; /* Inappropriate ioctl for device */
4106 if (!afs_osi_suser(*acred))
4109 afs_setsprefs((struct spref *)afs_pd_where(ain),
4110 afs_pd_remaining(ain) / sizeof(struct spref),
4116 * VIOC_GETSPREFS (43) - Get server ranks
4120 * \param[in] ain the server preferences to get
4121 * \param[out] aout the server preferences information
4123 * \retval EIO Error if the afs daemon hasn't started yet
4124 * \retval ENOENT Error if the sprefrequest is too large
4126 * \post Get the sprefs
4129 * in the hash table of server structs, all servers with the same
4130 * IP address; will be on the same overflow chain; This could be
4131 * sped slightly in some circumstances by having it cache the
4132 * immediately previous slot in the hash table and some
4133 * supporting information; Only reports file servers now.
4135 DECL_PIOCTL(PGetSPrefs)
4137 struct sprefrequest spin; /* input */
4138 struct sprefinfo *spout; /* output */
4139 struct spref *srvout; /* one output component */
4140 int i, j; /* counters for hash table traversal */
4141 struct server *srvr; /* one of CM's server structs */
4143 int vlonly; /* just return vlservers ? */
4146 AFS_STATCNT(PGetSPrefs);
4147 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4148 return EIO; /* Inappropriate ioctl for device */
4150 /* Work out from the size whether we've got a new, or old, style pioctl */
4151 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4152 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4157 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4159 vlonly = (spin.flags & DBservers);
4162 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4163 * quite brave enough to tackle it yet ...
4166 /* struct sprefinfo includes 1 server struct... that size gets added
4167 * in during the loop that follows.
4169 spout = afs_pd_inline(aout,
4170 sizeof(struct sprefinfo) - sizeof(struct spref));
4171 spout->next_offset = spin.offset;
4172 spout->num_servers = 0;
4173 srvout = spout->servers;
4175 ObtainReadLock(&afs_xserver);
4176 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4177 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4178 if (spin.offset > (unsigned short)i) {
4179 continue; /* catch up to where we left off */
4181 spout->next_offset++;
4184 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4185 || (sa->sa_portal == AFS_FSPORT);
4187 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4188 /* only report ranks for vl servers */
4192 /* Check we've actually got the space we're about to use */
4193 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4194 ReleaseReadLock(&afs_xserver); /* no more room! */
4198 srvout->host.s_addr = sa->sa_ip;
4199 srvout->rank = sa->sa_iprank;
4200 spout->num_servers++;
4204 ReleaseReadLock(&afs_xserver);
4206 spout->next_offset = 0; /* start over from the beginning next time */
4211 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4212 int afs_NFSRootOnly = 1;
4214 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4219 * an integer containing the desired exportee flags
4221 * an integer containing the current exporter flags
4223 * \retval ENODEV Error if the exporter doesn't exist
4224 * \retval EACCES Error if the user doesn't have super-user credentials
4227 * Changes the state of various values to reflect the change
4228 * of the export values between nfs and afs.
4230 * \notes Legacy code obtained from IBM.
4232 DECL_PIOCTL(PExportAfs)
4234 afs_int32 export, newint = 0;
4235 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4236 afs_int32 rempags = 0, pagcb = 0;
4237 struct afs_exporter *exporter;
4239 AFS_STATCNT(PExportAfs);
4240 if (afs_pd_getInt(ain, &handleValue) != 0)
4242 type = handleValue >> 24;
4247 exporter = exporter_find(type);
4249 export = handleValue & 3;
4250 changestate = handleValue & 0xfff;
4251 smounts = (handleValue >> 2) & 3;
4252 pwsync = (handleValue >> 4) & 3;
4253 convmode = (handleValue >> 6) & 3;
4254 rempags = (handleValue >> 8) & 3;
4255 pagcb = (handleValue >> 10) & 3;
4257 changestate = (handleValue >> 16) & 0x1;
4258 convmode = (handleValue >> 16) & 0x2;
4259 pwsync = (handleValue >> 16) & 0x4;
4260 smounts = (handleValue >> 16) & 0x8;
4261 export = handleValue & 0xff;
4264 /* Failed finding desired exporter; */
4268 handleValue = exporter->exp_states;
4269 if (afs_pd_putInt(aout, handleValue) != 0)
4272 if (!afs_osi_suser(*acred))
4273 return EACCES; /* Only superuser can do this */
4277 exporter->exp_states |= EXP_EXPORTED;
4279 exporter->exp_states &= ~EXP_EXPORTED;
4283 exporter->exp_states |= EXP_UNIXMODE;
4285 exporter->exp_states &= ~EXP_UNIXMODE;
4289 exporter->exp_states |= EXP_PWSYNC;
4291 exporter->exp_states &= ~EXP_PWSYNC;
4295 afs_NFSRootOnly = 0;
4296 exporter->exp_states |= EXP_SUBMOUNTS;
4298 afs_NFSRootOnly = 1;
4299 exporter->exp_states &= ~EXP_SUBMOUNTS;
4304 exporter->exp_states |= EXP_CLIPAGS;
4306 exporter->exp_states &= ~EXP_CLIPAGS;
4310 exporter->exp_states |= EXP_CALLBACK;
4312 exporter->exp_states &= ~EXP_CALLBACK;
4314 handleValue = exporter->exp_states;
4315 if (afs_pd_putInt(aout, handleValue) != 0)
4319 exporter->exp_states |= EXP_EXPORTED;
4321 exporter->exp_states &= ~EXP_EXPORTED;
4323 exporter->exp_states |= EXP_UNIXMODE;
4325 exporter->exp_states &= ~EXP_UNIXMODE;
4327 exporter->exp_states |= EXP_PWSYNC;
4329 exporter->exp_states &= ~EXP_PWSYNC;
4331 afs_NFSRootOnly = 0;
4332 exporter->exp_states |= EXP_SUBMOUNTS;
4334 afs_NFSRootOnly = 1;
4335 exporter->exp_states &= ~EXP_SUBMOUNTS;
4344 * VIOC_GAG (44) - Silence Cache Manager
4348 * \param[in] ain the flags to either gag or de-gag the cache manager
4349 * \param[out] aout not in use
4351 * \retval EACCES Error if the user doesn't have super-user credentials
4353 * \post set the gag flags, then show these flags
4357 struct gaginfo *gagflags;
4359 if (!afs_osi_suser(*acred))
4362 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4363 if (gagflags == NULL)
4365 afs_showflags = gagflags->showflags;
4371 * VIOC_TWIDDLE (45) - Adjust RX knobs
4375 * \param[in] ain the previous settings of the 'knobs'
4376 * \param[out] aout not in use
4378 * \retval EACCES Error if the user doesn't have super-user credentials
4380 * \post build out the struct rxp, from a struct rx
4382 DECL_PIOCTL(PTwiddleRx)
4384 struct rxparams *rxp;
4386 if (!afs_osi_suser(*acred))
4389 rxp = afs_pd_inline(ain, sizeof(*rxp));
4393 if (rxp->rx_initReceiveWindow)
4394 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4395 if (rxp->rx_maxReceiveWindow)
4396 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4397 if (rxp->rx_initSendWindow)
4398 rx_initSendWindow = rxp->rx_initSendWindow;
4399 if (rxp->rx_maxSendWindow)
4400 rx_maxSendWindow = rxp->rx_maxSendWindow;
4401 if (rxp->rxi_nSendFrags)
4402 rxi_nSendFrags = rxp->rxi_nSendFrags;
4403 if (rxp->rxi_nRecvFrags)
4404 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4405 if (rxp->rxi_OrphanFragSize)
4406 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4407 if (rxp->rx_maxReceiveSize) {
4408 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4409 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4411 if (rxp->rx_MyMaxSendSize)
4412 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4418 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4422 * \param[in] ain not in use
4423 * \param[out] aout initial cache manager params
4426 * Error if the initial parameters are bigger than some PIGGYSIZE
4428 * \post return the initial cache manager parameters
4430 DECL_PIOCTL(PGetInitParams)
4432 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4435 return afs_pd_putBytes(aout, &cm_initParams,
4436 sizeof(struct cm_initparams));
4439 #ifdef AFS_SGI65_ENV
4440 /* They took crget() from us, so fake it. */
4445 cr = crdup(get_current_cred());
4446 memset(cr, 0, sizeof(cred_t));
4447 #if CELL || CELL_PREPARE
4455 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4459 * \param[in] ain not in use
4460 * \param[out] aout value of cryptall
4462 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4464 DECL_PIOCTL(PGetRxkcrypt)
4466 return afs_pd_putInt(aout, cryptall);
4470 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4474 * \param[in] ain the argument whether or not things should be encrypted
4475 * \param[out] aout not in use
4478 * Error if the user doesn't have super-user credentials
4480 * Error if the input is too big, or if the input is outside the
4481 * bounds of what it can be set to
4483 * \post set whether or not things should be encrypted
4486 * may need to be modified at a later date to take into account
4487 * other values for cryptall (beyond true or false)
4489 DECL_PIOCTL(PSetRxkcrypt)
4493 if (!afs_osi_suser(*acred))
4495 if (afs_pd_getInt(ain, &tmpval) != 0)
4497 /* if new mappings added later this will need to be changed */
4498 if (tmpval != 0 && tmpval != 1)
4504 #ifdef AFS_NEED_CLIENTCONTEXT
4506 * Create new credentials to correspond to a remote user with given
4507 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4508 * provide pioctl (and other) services to foreign clients (i.e. nfs
4509 * clients) by using this call to `become' the client.
4512 #define PIOCTL_HEADER 6
4514 HandleClientContext(struct afs_ioctl *ablob, int *com,
4515 afs_ucred_t **acred, afs_ucred_t *credp)
4518 afs_uint32 hostaddr;
4519 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4520 struct afs_exporter *exporter, *outexporter;
4521 afs_ucred_t *newcred;
4522 struct unixuser *au;
4523 afs_uint32 comp = *com & 0xff00;
4525 #if defined(AFS_SUN510_ENV)
4529 #if defined(AFS_SGIMP_ENV)
4530 osi_Assert(ISAFS_GLOCK());
4532 AFS_STATCNT(HandleClientContext);
4533 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4534 /* Must at least include the PIOCTL_HEADER header words
4535 * required by the protocol */
4536 return EINVAL; /* Too small to be good */
4538 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4539 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4541 osi_FreeLargeSpace(inData);
4545 /* Extract information for remote user */
4546 hostaddr = *((afs_uint32 *) ain);
4547 ain += sizeof(hostaddr);
4548 uid = *((afs_uint32 *) ain);
4550 g0 = *((afs_uint32 *) ain);
4552 g1 = *((afs_uint32 *) ain);
4554 *com = *((afs_uint32 *) ain);
4555 ain += sizeof(afs_int32);
4556 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4559 * Of course, one must be root for most of these functions, but
4560 * we'll allow (for knfs) you to set things if the pag is 0 and
4561 * you're setting tokens or unlogging.
4564 if (!afs_osi_suser(credp)) {
4565 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4566 /* Since SGI's suser() returns explicit failure after the call.. */
4569 /* check for acceptable opcodes for normal folks, which are, so far,
4570 * get/set tokens, sysname, and unlog.
4572 if (i != 9 && i != 3 && i != 38 && i != 8) {
4573 osi_FreeLargeSpace(inData);
4578 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4579 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4580 osi_FreeLargeSpace(inData);
4583 * We map uid 0 to nobody to match the mapping that the nfs
4584 * server does and to ensure that the suser() calls in the afs
4585 * code fails for remote client roots.
4587 uid = afs_nobody; /* NFS_NOBODY == -2 */
4591 #ifdef AFS_AIX41_ENV
4594 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4595 #ifdef AFS_AIX51_ENV
4596 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4597 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4598 #elif defined(AFS_LINUX26_ENV)
4599 # ifdef AFS_LINUX26_ONEGROUP_ENV
4600 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4601 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4602 h = ((g0-0x3f00) >> 14);
4603 h = ((g1-0x3f00) >> 14) + h + h + h;
4604 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4606 afs_set_cr_group_info(newcred, groups_alloc(2));
4607 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4608 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4610 #elif defined(AFS_SUN510_ENV)
4613 crsetgroups(newcred, 2, gids);
4615 newcred->cr_groups[0] = g0;
4616 newcred->cr_groups[1] = g1;
4619 newcred->cr_ngrps = 2;
4620 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4621 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4622 newcred->cr_ngroups = 2;
4624 for (i = 2; i < NGROUPS; i++)
4625 newcred->cr_groups[i] = NOGROUP;
4628 if (!(exporter = exporter_find(exporter_type))) {
4629 /* Exporter wasn't initialized or an invalid exporter type */
4633 if (exporter->exp_states & EXP_PWSYNC) {
4634 if (uid != afs_cr_uid(credp)) {
4636 return ENOEXEC; /* XXX Find a better errno XXX */
4639 afs_set_cr_uid(newcred, uid); /* Only temporary */
4640 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4641 /* The client's pag is the only unique identifier for it */
4642 afs_set_cr_uid(newcred, pag);
4644 if (!code && *com == PSETPAG) {
4645 /* Special case for 'setpag' */
4646 afs_uint32 pagvalue = genpag();
4648 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4650 * Note that we leave the 'outexporter' struct held so it won't
4653 au->exporter = outexporter;
4654 if (ablob->out_size >= 4) {
4655 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4658 afs_PutUser(au, WRITE_LOCK);
4661 return PSETPAG; /* Special return for setpag */
4663 EXP_RELE(outexporter);
4666 *com = (*com) | comp;
4669 #endif /* AFS_NEED_CLIENTCONTEXT */
4673 * VIOC_GETCPREFS (50) - Get client interface
4677 * \param[in] ain sprefrequest input
4678 * \param[out] aout spref information
4680 * \retval EIO Error if the afs daemon hasn't started yet
4681 * \retval EINVAL Error if some of the standard args aren't set
4684 * get all interface addresses and other information of the client
4687 DECL_PIOCTL(PGetCPrefs)
4689 struct sprefrequest *spin; /* input */
4690 struct sprefinfo *spout; /* output */
4691 struct spref *srvout; /* one output component */
4695 AFS_STATCNT(PGetCPrefs);
4696 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4697 return EIO; /* Inappropriate ioctl for device */
4699 spin = afs_pd_inline(ain, sizeof(*spin));
4703 /* Output spout relies on writing past the end of arrays. It's horrible,
4704 * but I'm not quite brave enough to tackle it yet */
4705 spout = (struct sprefinfo *)aout->ptr;
4707 maxNumber = spin->num_servers; /* max addrs this time */
4708 srvout = spout->servers;
4710 ObtainReadLock(&afs_xinterface);
4712 /* copy out the client interface information from the
4713 * kernel data structure "interface" to the output buffer
4715 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4716 && (j < maxNumber); i++, j++, srvout++)
4717 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4719 spout->num_servers = j;
4720 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4722 if (i >= afs_cb_interface.numberOfInterfaces)
4723 spout->next_offset = 0; /* start from beginning again */
4725 spout->next_offset = spin->offset + j;
4727 ReleaseReadLock(&afs_xinterface);
4732 * VIOC_SETCPREFS (51) - Set client interface
4736 * \param[in] ain the interfaces you want set
4737 * \param[out] aout not in use
4739 * \retval EIO Error if the afs daemon hasn't started yet
4740 * \retval EINVAL Error if the input is too large for the struct
4741 * \retval ENOMEM Error if there are too many servers
4743 * \post set the callbak interfaces addresses to those of the hosts
4745 DECL_PIOCTL(PSetCPrefs)
4749 struct setspref *sin;
4752 AFS_STATCNT(PSetCPrefs);
4753 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4754 return EIO; /* Inappropriate ioctl for device */
4756 /* Yuck. Input to this function relies on reading past the end of
4757 * structures. Bodge it for now.
4760 ainSize = ain->remaining;
4762 sin = (struct setspref *)ainPtr;
4764 if (ainSize < sizeof(struct setspref))
4766 #if 0 /* num_servers is unsigned */
4767 if (sin->num_servers < 0)
4770 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4773 ObtainWriteLock(&afs_xinterface, 412);
4774 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4775 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4776 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4778 ReleaseWriteLock(&afs_xinterface);
4783 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4788 * the last part of a path to a mount point, which tells us what to flush
4793 * Error if some of the initial arguments aren't set
4795 * Error if the initial argument for the mount point isn't a directory
4797 * Error if the dcache entry isn't set
4800 * remove all of the mount data from the dcache regarding a
4801 * certain mount point
4803 DECL_PIOCTL(PFlushMount)
4808 struct VenusFid tfid;
4811 struct sysname_info sysState;
4812 afs_size_t offset, len;
4814 AFS_STATCNT(PFlushMount);
4818 if (afs_pd_getStringPtr(ain, &mount) != 0)
4821 code = afs_VerifyVCache(avc, areq);
4824 if (vType(avc) != VDIR) {
4827 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4830 Check_AtSys(avc, mount, &sysState, areq);
4831 ObtainReadLock(&tdc->lock);
4833 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4834 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4835 ReleaseReadLock(&tdc->lock);
4836 afs_PutDCache(tdc); /* we're done with the data */
4837 bufp = sysState.name;
4841 tfid.Cell = avc->f.fid.Cell;
4842 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4843 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4844 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4846 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4852 if (tvc->mvstat != AFS_MVSTAT_MTPT) {
4857 ObtainWriteLock(&tvc->lock, 649);
4858 ObtainWriteLock(&afs_xcbhash, 650);
4859 afs_DequeueCallback(tvc);
4860 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4861 ReleaseWriteLock(&afs_xcbhash);
4862 /* now find the disk cache entries */
4863 afs_TryToSmush(tvc, *acred, 1);
4864 osi_dnlc_purgedp(tvc);
4865 if (tvc->linkData && !(tvc->f.states & CCore)) {
4866 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4867 tvc->linkData = NULL;
4869 ReleaseWriteLock(&tvc->lock);
4872 if (sysState.allocked)
4873 osi_FreeLargeSpace(bufp);
4878 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4882 * \param[in] ain the flags that control which stats to use
4883 * \param[out] aout not in use
4885 * \retval EACCES Error if the user doesn't have super-user credentials
4886 * \retval EINVAL Error if the flag input is too long
4889 * either enable process RPCStats, disable process RPCStats,
4890 * or clear the process RPCStats
4892 DECL_PIOCTL(PRxStatProc)
4896 if (!afs_osi_suser(*acred))
4899 if (afs_pd_getInt(ain, &flags) != 0)
4902 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4905 if (flags & AFSCALL_RXSTATS_ENABLE) {
4906 rx_enableProcessRPCStats();
4908 if (flags & AFSCALL_RXSTATS_DISABLE) {
4909 rx_disableProcessRPCStats();
4911 if (flags & AFSCALL_RXSTATS_CLEAR) {
4912 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4919 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4923 * \param[in] ain the flags that control which statistics to use
4924 * \param[out] aout not in use
4926 * \retval EACCES Error if the user doesn't have super-user credentials
4927 * \retval EINVAL Error if the flag input is too long
4930 * either enable peer RPCStatws, disable peer RPCStats,
4931 * or clear the peer RPCStats
4933 DECL_PIOCTL(PRxStatPeer)
4937 if (!afs_osi_suser(*acred))
4940 if (afs_pd_getInt(ain, &flags) != 0)
4943 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4946 if (flags & AFSCALL_RXSTATS_ENABLE) {
4947 rx_enablePeerRPCStats();
4949 if (flags & AFSCALL_RXSTATS_DISABLE) {
4950 rx_disablePeerRPCStats();
4952 if (flags & AFSCALL_RXSTATS_CLEAR) {
4953 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4958 DECL_PIOCTL(PPrefetchFromTape)
4962 struct afs_conn *tc;
4963 struct rx_call *tcall;
4964 struct AFSVolSync tsync;
4965 struct AFSFetchStatus OutStatus;
4966 struct AFSCallBack CallBack;
4967 struct VenusFid tfid;
4970 struct rx_connection *rxconn;
4972 AFS_STATCNT(PPrefetchFromTape);
4976 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4978 Fid = &avc->f.fid.Fid;
4980 tfid.Cell = avc->f.fid.Cell;
4981 tfid.Fid.Volume = Fid->Volume;
4982 tfid.Fid.Vnode = Fid->Vnode;
4983 tfid.Fid.Unique = Fid->Unique;
4985 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4987 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4988 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4991 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4992 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4995 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
4999 tcall = rx_NewCall(rxconn);
5001 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
5004 rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
5006 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
5008 code = rx_EndCall(tcall, code);
5012 } while (afs_Analyze
5013 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
5014 SHARED_LOCK, NULL));
5015 /* This call is done only to have the callback things handled correctly */
5016 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
5022 return afs_pd_putInt(aout, outval);
5028 struct afs_conn *tc;
5030 struct FsCmdInputs *Inputs;
5031 struct FsCmdOutputs *Outputs;
5032 struct VenusFid tfid;
5034 struct rx_connection *rxconn;
5039 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
5043 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
5044 if (Outputs == NULL)
5049 Fid = &avc->f.fid.Fid;
5051 tfid.Cell = avc->f.fid.Cell;
5052 tfid.Fid.Volume = Fid->Volume;
5053 tfid.Fid.Vnode = Fid->Vnode;
5054 tfid.Fid.Unique = Fid->Unique;
5056 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5057 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5058 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5062 if (Inputs->command) {
5064 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5068 RXAFS_FsCmd(rxconn, Fid, Inputs, Outputs);
5072 } while (afs_Analyze
5073 (tc, rxconn, code, &tvc->f.fid, areq,
5074 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5075 /* This call is done to have the callback things handled correctly */
5076 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5077 } else { /* just a status request, return also link data */
5079 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5080 Outputs->chars[0] = 0;
5081 if (vType(tvc) == VLNK) {
5082 ObtainWriteLock(&tvc->lock, 555);
5083 if (afs_HandleLink(tvc, areq) == 0)
5084 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5085 ReleaseWriteLock(&tvc->lock);
5094 DECL_PIOCTL(PNewUuid)
5096 /*AFS_STATCNT(PNewUuid); */
5097 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5098 return EIO; /* Inappropriate ioctl for device */
5100 if (!afs_osi_suser(*acred))
5103 ObtainWriteLock(&afs_xinterface, 555);
5104 afs_uuid_create(&afs_cb_interface.uuid);
5105 ReleaseWriteLock(&afs_xinterface);
5106 ForceAllNewConnections();
5110 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5112 DECL_PIOCTL(PSetCachingThreshold)
5114 afs_int32 getting = 1;
5115 afs_int32 setting = 1;
5116 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5118 if (afs_pd_getInt(ain, &threshold) != 0)
5124 if (setting == 0 && getting == 0)
5128 * If setting, set first, and return the value now in effect
5131 if (!afs_osi_suser(*acred))
5133 cache_bypass_threshold = threshold;
5134 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5135 /* TODO: move to separate pioctl, or enhance pioctl */
5136 if (threshold == AFS_CACHE_BYPASS_DISABLED)
5137 cache_bypass_strategy = NEVER_BYPASS_CACHE;
5138 else if (!threshold)
5139 cache_bypass_strategy = ALWAYS_BYPASS_CACHE;
5141 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5144 /* Return the current size threshold */
5146 return afs_pd_putInt(aout, cache_bypass_threshold);
5151 #endif /* defined(AFS_CACHE_BYPASS) */
5153 DECL_PIOCTL(PCallBackAddr)
5156 afs_uint32 addr, code;
5160 struct afs_conn *tc;
5162 struct unixuser *tu;
5163 struct srvAddr **addrs;
5164 struct rx_connection *rxconn;
5166 /*AFS_STATCNT(PCallBackAddr); */
5167 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5168 return EIO; /* Inappropriate ioctl for device */
5170 if (!afs_osi_suser(acred))
5173 if (afs_pd_getInt(ain, &addr) != 0)
5176 ObtainReadLock(&afs_xinterface);
5177 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5178 if (afs_cb_interface.addr_in[i] == addr)
5182 ReleaseWriteLock(&afs_xinterface);
5184 if (afs_cb_interface.addr_in[i] != addr)
5187 ObtainReadLock(&afs_xserver); /* Necessary? */
5188 ObtainReadLock(&afs_xsrvAddr);
5191 for (i = 0; i < NSERVERS; i++) {
5192 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5197 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5198 osi_Assert(addrs != NULL);
5200 for (i = 0; i < NSERVERS; i++) {
5201 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5202 if (j >= srvAddrCount)
5208 ReleaseReadLock(&afs_xsrvAddr);
5209 ReleaseReadLock(&afs_xserver);
5211 for (i = 0; i < j; i++) {
5217 /* vlserver has no callback conn */
5218 if (sa->sa_portal == AFS_VLPORT) {
5222 if (!ts->cell) /* not really an active server, anyway, it must */
5223 continue; /* have just been added by setsprefs */
5225 /* get a connection, even if host is down; bumps conn ref count */
5226 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5227 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5228 1 /*force */ , 1 /*create */ , SHARED_LOCK, 0, &rxconn);
5229 afs_PutUser(tu, SHARED_LOCK);
5233 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5234 if (sa->sa_flags & SRVADDR_ISDOWN) {
5235 rx_SetConnDeadTime(rxconn, 3);
5237 #ifdef RX_ENABLE_LOCKS
5239 #endif /* RX_ENABLE_LOCKS */
5240 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5241 #ifdef RX_ENABLE_LOCKS
5243 #endif /* RX_ENABLE_LOCKS */
5245 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5246 } /* Outer loop over addrs */
5247 #endif /* UKERNEL */
5251 DECL_PIOCTL(PDiscon)
5253 static afs_int32 mode = 1; /* Start up in 'off' */
5254 afs_int32 force = 0;
5257 struct vrequest lreq;
5259 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5260 if (!afs_osi_suser(*acred))
5264 mode = flags[0] - 1;
5266 afs_ConflictPolicy = flags[1] - 1;
5270 /* Fake InitReq support for UID override */
5271 memset(&lreq, 0, sizeof(lreq));
5272 lreq.uid = flags[3];
5273 areq = &lreq; /* override areq we got */
5277 * All of these numbers are hard coded in fs.c. If they
5278 * change here, they should change there and vice versa
5281 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5282 if (!AFS_IS_DISCONNECTED) {
5283 ObtainWriteLock(&afs_discon_lock, 999);
5284 afs_DisconGiveUpCallbacks();
5285 afs_RemoveAllConns();
5286 afs_is_disconnected = 1;
5287 afs_is_discon_rw = 1;
5288 ReleaseWriteLock(&afs_discon_lock);
5291 case 1: /* Fully connected, ("online" mode). */
5292 ObtainWriteLock(&afs_discon_lock, 998);
5295 afs_MarkAllServersUp();
5296 code = afs_ResyncDisconFiles(areq, *acred);
5299 if (code && !force) {
5300 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5301 "Please retry or use \"force\".\n");
5305 afs_DisconDiscardAll(*acred);
5307 afs_ClearAllStatdFlag();
5308 afs_is_disconnected = 0;
5309 afs_is_discon_rw = 0;
5310 afs_warnuser("\nSync succeeded. You are back online.\n");
5313 ReleaseWriteLock(&afs_discon_lock);
5325 return afs_pd_putInt(aout, mode);
5328 #define MAX_PIOCTL_TOKENS 10
5330 DECL_PIOCTL(PSetTokens2)
5333 int i, cellNum, primaryFlag;
5335 struct unixuser *tu;
5336 struct vrequest *treq = NULL;
5337 struct ktc_setTokenData tokenSet;
5338 struct ktc_tokenUnion decodedToken;
5340 memset(&tokenSet, 0, sizeof(tokenSet));
5342 AFS_STATCNT(PSetTokens2);
5343 if (!afs_resourceinit_flag)
5346 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5348 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5349 afs_pd_xdrEnd(ain, &xdrs);
5353 afs_pd_xdrEnd(ain, &xdrs);
5355 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5356 * process from using up the whole of the kernel memory by allocating
5359 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5360 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5364 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5366 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5370 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5371 #if defined(AFS_LINUX26_ENV)
5372 afs_ucred_t *old_cred = *acred;
5374 if (_settok_setParentPag(acred) == 0) {
5375 #if defined(AFS_LINUX26_ENV)
5376 /* setpag() may have changed our credentials */
5380 code = afs_CreateReq(&treq, *acred);
5382 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5389 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5390 /* Free any tokens that we've already got */
5391 afs_FreeTokens(&tu->tokens);
5393 /* Iterate across the set of tokens we've received, and stuff them
5394 * into this user's tokenJar
5396 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5397 xdrmem_create(&xdrs,
5398 tokenSet.tokens.tokens_val[i].token_opaque_val,
5399 tokenSet.tokens.tokens_val[i].token_opaque_len,
5402 memset(&decodedToken, 0, sizeof(decodedToken));
5403 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5411 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5412 /* This is untidy - the old token interface supported passing
5413 * the primaryFlag as part of the token interface. Current
5414 * OpenAFS userland never sets this, but it's specified as being
5415 * part of the XG interface, so we should probably still support
5416 * it. Rather than add it to our AddToken interface, just handle
5419 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5420 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5424 /* XXX - We should think more about destruction here. It's likely that
5425 * there is key material in what we're about to throw away, which
5426 * we really should zero out before giving back to the allocator */
5427 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5430 tu->states |= UHasTokens;
5431 tu->states &= ~UTokensBad;
5432 afs_SetPrimary(tu, primaryFlag);
5433 tu->tokenTime = osi_Time();
5435 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5438 afs_ResetUserConns(tu);
5439 afs_PutUser(tu, WRITE_LOCK);
5440 afs_DestroyReq(treq);
5445 DECL_PIOCTL(PGetTokens2)
5447 struct cell *cell = NULL;
5448 struct unixuser *tu = NULL;
5450 char *cellName = NULL;
5455 struct ktc_setTokenData tokenSet;
5457 AFS_STATCNT(PGetTokens);
5458 if (!afs_resourceinit_flag)
5461 memset(&tokenSet, 0, sizeof(tokenSet));
5463 /* No input data - return tokens for primary cell */
5464 /* 4 octets of data is an iterator count */
5465 /* Otherwise, treat as string & return tokens for that cell name */
5467 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5468 /* Integer iterator - return tokens for the n'th cell found for user */
5469 if (afs_pd_getInt(ain, &iterator) != 0)
5471 tu = getNthCell(areq->uid, iterator);
5473 if (afs_pd_remaining(ain) > 0) {
5474 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5479 code = _settok_tokenCell(cellName, &cellNum, NULL);
5482 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5489 if (!(tu->states & UHasTokens)
5490 || !afs_HasValidTokens(tu->tokens, now)) {
5491 tu->states |= (UTokensBad | UNeedsReset);
5492 afs_PutUser(tu, READ_LOCK);
5496 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5500 cell = afs_GetCell(tu->cell, READ_LOCK);
5501 tokenSet.cell = cell->cellName;
5502 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5503 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5507 afs_pd_xdrEnd(aout, &xdrs);
5510 tokenSet.cell = NULL;
5513 afs_PutUser(tu, READ_LOCK);
5515 afs_PutCell(cell, READ_LOCK);
5516 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5521 DECL_PIOCTL(PNFSNukeCreds)
5525 struct unixuser *tu;
5527 AFS_STATCNT(PUnlog);
5528 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5529 return EIO; /* Inappropriate ioctl for device */
5531 if (afs_pd_getUint(ain, &addr) != 0)
5534 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5535 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5536 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5537 afs_PutUser(tu, SHARED_LOCK);
5540 afs_PutUser(tu, SHARED_LOCK);
5541 } else if (!afs_osi_suser(acred)) {
5545 ObtainWriteLock(&afs_xuser, 227);
5546 for (i = 0; i < NUSERS; i++) {
5547 for (tu = afs_users[i]; tu; tu = tu->next) {
5548 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5550 ReleaseWriteLock(&afs_xuser);
5552 afs_LockUser(tu, WRITE_LOCK, 367);
5554 tu->states &= ~UHasTokens;
5555 afs_FreeTokens(&tu->tokens);
5556 afs_ResetUserConns(tu);
5557 afs_PutUser(tu, WRITE_LOCK);
5558 ObtainWriteLock(&afs_xuser, 228);
5560 /* set the expire times to 0, causes
5561 * afs_GCUserData to remove this entry
5564 #endif /* UKERNEL */
5568 ReleaseWriteLock(&afs_xuser);