2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include "afs/param.h"
14 #include "afs/sysincludes.h" /* Standard vendor system headers */
16 #include "h/syscallargs.h"
19 #include "h/sysproto.h"
22 #include <sys/ioctl.h>
23 #include <sys/ioccom.h>
25 #include "afsincludes.h" /* Afs-based standard headers */
26 #include "afs/afs_stats.h" /* afs statistics */
28 #include "afs/afs_bypasscache.h"
29 #include "rx/rx_globals.h"
32 extern int afs_rmtsys_enable;
33 struct VenusFid afs_rootFid;
34 afs_int32 afs_waitForever = 0;
35 short afs_waitForeverCount = 0;
36 afs_int32 afs_showflags = GAGUSER | GAGCONSOLE; /* show all messages */
38 afs_int32 afs_is_disconnected;
39 afs_int32 afs_is_discon_rw;
40 /* On reconnection, turn this knob on until it finishes,
43 afs_int32 afs_in_sync = 0;
51 * A set of handy little functions for encoding and decoding
52 * pioctls without losing your marbles, or memory integrity
56 afs_pd_alloc(struct afs_pdata *apd, size_t size)
59 if (size > AFS_LRALLOCSIZ)
60 apd->ptr = osi_Alloc(size + 1);
62 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
67 apd->remaining = size;
73 afs_pd_free(struct afs_pdata *apd)
78 if (apd->remaining > AFS_LRALLOCSIZ)
79 osi_Free(apd->ptr, apd->remaining + 1);
81 osi_FreeLargeSpace(apd->ptr);
88 afs_pd_where(struct afs_pdata *apd)
90 return apd ? apd->ptr : NULL;
94 afs_pd_remaining(struct afs_pdata *apd)
96 return apd ? apd->remaining : 0;
100 afs_pd_skip(struct afs_pdata *apd, size_t skip)
102 if (apd == NULL || apd->remaining < skip)
104 apd->remaining -= skip;
111 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
113 if (apd == NULL || apd->remaining < bytes)
115 apd->remaining -= bytes;
116 memcpy(dest, apd->ptr, bytes);
122 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
124 return afs_pd_getBytes(apd, val, sizeof(*val));
128 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
130 return afs_pd_getBytes(apd, val, sizeof(*val));
134 afs_pd_inline(struct afs_pdata *apd, size_t bytes)
138 if (apd == NULL || apd->remaining < bytes)
143 apd->remaining -= bytes;
150 afs_pd_xdrStart(struct afs_pdata *apd, XDR *xdrs, enum xdr_op op) {
151 xdrmem_create(xdrs, apd->ptr, apd->remaining, op);
155 afs_pd_xdrEnd(struct afs_pdata *apd, XDR *xdrs) {
158 pos = xdr_getpos(xdrs);
160 apd->remaining -= pos;
167 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
171 if (apd == NULL || apd->remaining <= 0)
173 len = strlen(apd->ptr) + 1;
176 memcpy(str, apd->ptr, len);
178 apd->remaining -= len;
183 afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
187 if (apd == NULL || apd->remaining <= 0)
189 len = strlen(apd->ptr) + 1;
192 apd->remaining -= len;
197 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
199 if (apd == NULL || apd->remaining < len)
201 memcpy(apd->ptr, bytes, len);
203 apd->remaining -= len;
208 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
210 return afs_pd_putBytes(apd, &val, sizeof(val));
214 afs_pd_putString(struct afs_pdata *apd, char *str) {
216 /* Add 1 so we copy the NULL too */
217 return afs_pd_putBytes(apd, str, strlen(str) +1);
221 * \defgroup pioctl Path IOCTL functions
223 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
226 * the AFS vcache structure in use by pioctl
230 * the AFS vrequest structure
232 * an afs_pdata block describing the data received from the caller
234 * an afs_pdata block describing a pre-allocated block for output
236 * UNIX credentials structure underlying the operation
239 #define DECL_PIOCTL(x) \
240 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
241 struct afs_pdata *ain, struct afs_pdata *aout, \
244 /* Prototypes for pioctl routines */
245 DECL_PIOCTL(PGetFID);
246 DECL_PIOCTL(PSetAcl);
247 DECL_PIOCTL(PStoreBehind);
248 DECL_PIOCTL(PGCPAGs);
249 DECL_PIOCTL(PGetAcl);
252 DECL_PIOCTL(PGetFileCell);
253 DECL_PIOCTL(PGetWSCell);
254 DECL_PIOCTL(PGetUserCell);
255 DECL_PIOCTL(PSetTokens);
256 DECL_PIOCTL(PSetTokens2);
257 DECL_PIOCTL(PGetVolumeStatus);
258 DECL_PIOCTL(PSetVolumeStatus);
260 DECL_PIOCTL(PNewStatMount);
261 DECL_PIOCTL(PGetTokens);
262 DECL_PIOCTL(PGetTokens2);
264 DECL_PIOCTL(PMariner);
265 DECL_PIOCTL(PCheckServers);
266 DECL_PIOCTL(PCheckVolNames);
267 DECL_PIOCTL(PCheckAuth);
268 DECL_PIOCTL(PFindVolume);
269 DECL_PIOCTL(PViceAccess);
270 DECL_PIOCTL(PSetCacheSize);
271 DECL_PIOCTL(PGetCacheSize);
272 DECL_PIOCTL(PRemoveCallBack);
273 DECL_PIOCTL(PNewCell);
274 DECL_PIOCTL(PNewAlias);
275 DECL_PIOCTL(PListCells);
276 DECL_PIOCTL(PListAliases);
277 DECL_PIOCTL(PRemoveMount);
278 DECL_PIOCTL(PGetCellStatus);
279 DECL_PIOCTL(PSetCellStatus);
280 DECL_PIOCTL(PFlushVolumeData);
281 DECL_PIOCTL(PFlushAllVolumeData);
282 DECL_PIOCTL(PGetVnodeXStatus);
283 DECL_PIOCTL(PGetVnodeXStatus2);
284 DECL_PIOCTL(PSetSysName);
285 DECL_PIOCTL(PSetSPrefs);
286 DECL_PIOCTL(PSetSPrefs33);
287 DECL_PIOCTL(PGetSPrefs);
288 DECL_PIOCTL(PExportAfs);
290 DECL_PIOCTL(PTwiddleRx);
291 DECL_PIOCTL(PGetInitParams);
292 DECL_PIOCTL(PGetRxkcrypt);
293 DECL_PIOCTL(PSetRxkcrypt);
294 DECL_PIOCTL(PGetCPrefs);
295 DECL_PIOCTL(PSetCPrefs);
296 DECL_PIOCTL(PFlushMount);
297 DECL_PIOCTL(PRxStatProc);
298 DECL_PIOCTL(PRxStatPeer);
299 DECL_PIOCTL(PPrefetchFromTape);
301 DECL_PIOCTL(PCallBackAddr);
302 DECL_PIOCTL(PDiscon);
303 DECL_PIOCTL(PNFSNukeCreds);
304 DECL_PIOCTL(PNewUuid);
305 DECL_PIOCTL(PPrecache);
306 DECL_PIOCTL(PGetPAG);
307 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
308 DECL_PIOCTL(PSetCachingThreshold);
312 * A macro that says whether we're going to need HandleClientContext().
313 * This is currently used only by the nfs translator.
315 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
316 #define AFS_NEED_CLIENTCONTEXT
319 /* Prototypes for private routines */
320 #ifdef AFS_NEED_CLIENTCONTEXT
321 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
325 int HandleIoctl(struct vcache *avc, afs_int32 acom,
326 struct afs_ioctl *adata);
327 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
328 struct afs_ioctl *ablob, int afollow,
329 afs_ucred_t **acred);
330 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
333 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
334 struct afs_pdata *, struct afs_pdata *,
337 static pioctlFunction VpioctlSw[] = {
342 PGetVolumeStatus, /* 4 */
343 PSetVolumeStatus, /* 5 */
348 PCheckServers, /* 10 */
349 PCheckVolNames, /* 11 */
351 PBogus, /* 13 -- used to be quick check time */
352 PFindVolume, /* 14 */
353 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
354 PBogus, /* 16 -- used to be testing code */
355 PNoop, /* 17 -- used to be enable group */
356 PNoop, /* 18 -- used to be disable group */
357 PBogus, /* 19 -- used to be list group */
358 PViceAccess, /* 20 */
359 PUnlog, /* 21 -- unlog *is* unpag in this system */
360 PGetFID, /* 22 -- get file ID */
361 PBogus, /* 23 -- used to be waitforever */
362 PSetCacheSize, /* 24 */
363 PRemoveCallBack, /* 25 -- flush only the callback */
366 PRemoveMount, /* 28 -- delete mount point */
367 PNewStatMount, /* 29 -- new style mount point stat */
368 PGetFileCell, /* 30 -- get cell name for input file */
369 PGetWSCell, /* 31 -- get cell name for workstation */
370 PMariner, /* 32 - set/get mariner host */
371 PGetUserCell, /* 33 -- get cell name for user */
372 PBogus, /* 34 -- Enable/Disable logging */
373 PGetCellStatus, /* 35 */
374 PSetCellStatus, /* 36 */
375 PFlushVolumeData, /* 37 -- flush all data from a volume */
376 PSetSysName, /* 38 - Set system name */
377 PExportAfs, /* 39 - Export Afs to remote nfs clients */
378 PGetCacheSize, /* 40 - get cache size and usage */
379 PGetVnodeXStatus, /* 41 - get vcache's special status */
380 PSetSPrefs33, /* 42 - Set CM Server preferences... */
381 PGetSPrefs, /* 43 - Get CM Server preferences... */
382 PGag, /* 44 - turn off/on all CM messages */
383 PTwiddleRx, /* 45 - adjust some RX params */
384 PSetSPrefs, /* 46 - Set CM Server preferences... */
385 PStoreBehind, /* 47 - set degree of store behind to be done */
386 PGCPAGs, /* 48 - disable automatic pag gc-ing */
387 PGetInitParams, /* 49 - get initial cm params */
388 PGetCPrefs, /* 50 - get client interface addresses */
389 PSetCPrefs, /* 51 - set client interface addresses */
390 PFlushMount, /* 52 - flush mount symlink data */
391 PRxStatProc, /* 53 - control process RX statistics */
392 PRxStatPeer, /* 54 - control peer RX statistics */
393 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
394 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
395 PBogus, /* 57 -- arla: set file prio */
396 PBogus, /* 58 -- arla: fallback getfh */
397 PBogus, /* 59 -- arla: fallback fhopen */
398 PBogus, /* 60 -- arla: controls xfsdebug */
399 PBogus, /* 61 -- arla: controls arla debug */
400 PBogus, /* 62 -- arla: debug interface */
401 PBogus, /* 63 -- arla: print xfs status */
402 PBogus, /* 64 -- arla: force cache check */
403 PBogus, /* 65 -- arla: break callback */
404 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
405 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
406 PBogus, /* 68 -- arla: fetch stats */
407 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
410 static pioctlFunction CpioctlSw[] = {
412 PNewAlias, /* 1 -- create new cell alias */
413 PListAliases, /* 2 -- list cell aliases */
414 PCallBackAddr, /* 3 -- request addr for callback rxcon */
416 PDiscon, /* 5 -- get/set discon mode */
425 PFlushAllVolumeData, /* 14 */
428 static pioctlFunction OpioctlSw[] = {
430 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
431 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
432 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
434 PNoop /* 2 -- get/set cache-bypass size threshold */
438 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
439 int afs_nobody = NFS_NOBODY;
442 HandleIoctl(struct vcache *avc, afs_int32 acom,
443 struct afs_ioctl *adata)
448 AFS_STATCNT(HandleIoctl);
450 switch (acom & 0xff) {
452 avc->f.states |= CSafeStore;
454 /* SXW - Should we force a MetaData flush for this flag setting */
457 /* case 2 used to be abort store, but this is no longer provided,
458 * since it is impossible to implement under normal Unix.
462 /* return the name of the cell this file is open on */
466 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
468 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
470 if (i > adata->out_size) {
471 /* 0 means we're not interested in the output */
472 if (adata->out_size != 0)
476 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
478 afs_PutCell(tcell, READ_LOCK);
484 case 49: /* VIOC_GETINITPARAMS */
485 if (adata->out_size < sizeof(struct cm_initparams)) {
488 AFS_COPYOUT(&cm_initParams, adata->out,
489 sizeof(struct cm_initparams), code);
501 return code; /* so far, none implemented */
505 /* For aix we don't temporarily bypass ioctl(2) but rather do our
506 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
507 * is now called from afs_gn_ioctl.
510 afs_ioctl(struct vcache *tvc, int cmd, int arg)
512 struct afs_ioctl data;
515 AFS_STATCNT(afs_ioctl);
516 if (((cmd >> 8) & 0xff) == 'V') {
517 /* This is a VICEIOCTL call */
518 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
521 error = HandleIoctl(tvc, cmd, &data);
524 /* No-op call; just return. */
528 # if defined(AFS_AIX32_ENV)
529 # if defined(AFS_AIX51_ENV)
532 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
534 # else /* __64BIT__ */
536 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
538 # endif /* __64BIT__ */
541 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
542 # endif /* AFS_AIX51_ENV */
547 # ifdef AFS_AIX51_ENV
550 } u_uap, *uap = &u_uap;
553 int ioctlDone = 0, code = 0;
555 AFS_STATCNT(afs_xioctl);
559 # ifdef AFS_AIX51_ENV
563 if (setuerror(getf(uap->fd, &fd))) {
566 if (fd->f_type == DTYPE_VNODE) {
567 /* good, this is a vnode; next see if it is an AFS vnode */
568 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
569 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
570 /* This is an AFS vnode */
571 if (((uap->com >> 8) & 0xff) == 'V') {
572 struct afs_ioctl *datap;
574 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
575 code=copyin_afs_ioctl((char *)uap->arg, datap);
577 osi_FreeSmallSpace(datap);
579 # if defined(AFS_AIX41_ENV)
582 return (setuerror(code), code);
584 code = HandleIoctl(tvc, uap->com, datap);
585 osi_FreeSmallSpace(datap);
588 # if defined(AFS_AIX41_ENV)
595 # if defined(AFS_AIX41_ENV)
597 # if defined(AFS_AIX51_ENV)
599 code = okioctl(fdes, com, arg, ext, arg2, arg3);
600 # else /* __64BIT__ */
601 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
602 # endif /* __64BIT__ */
603 # else /* !AFS_AIX51_ENV */
604 code = okioctl(fdes, com, arg, ext);
605 # endif /* AFS_AIX51_ENV */
607 # elif defined(AFS_AIX32_ENV)
608 okioctl(fdes, com, arg, ext);
611 # if defined(KERNEL_HAVE_UERROR)
614 # if !defined(AFS_AIX41_ENV)
615 return (getuerror()? -1 : u.u_ioctlrv);
617 return getuerror()? -1 : 0;
624 #elif defined(AFS_SGI_ENV)
625 # if defined(AFS_SGI65_ENV)
626 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
627 rval_t * rvalp, struct vopbd * vbds)
629 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
630 rval_t * rvalp, struct vopbd * vbds)
633 struct afs_ioctl data;
639 AFS_STATCNT(afs_ioctl);
640 if (((cmd >> 8) & 0xff) == 'V') {
641 /* This is a VICEIOCTL call */
642 error = copyin_afs_ioctl(arg, &data);
645 locked = ISAFS_GLOCK();
648 error = HandleIoctl(tvc, cmd, &data);
653 /* No-op call; just return. */
657 #elif defined(AFS_SUN5_ENV)
658 struct afs_ioctl_sys {
665 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
669 int ioctlDone = 0, code = 0;
671 AFS_STATCNT(afs_xioctl);
675 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
676 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
677 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
678 /* This is an AFS vnode */
679 if (((uap->com >> 8) & 0xff) == 'V') {
680 struct afs_ioctl *datap;
682 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
683 code=copyin_afs_ioctl((char *)uap->arg, datap);
685 osi_FreeSmallSpace(datap);
690 code = HandleIoctl(tvc, uap->com, datap);
691 osi_FreeSmallSpace(datap);
699 code = ioctl(uap, rvp);
703 #elif defined(AFS_LINUX22_ENV)
704 struct afs_ioctl_sys {
709 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
712 struct afs_ioctl_sys ua, *uap = &ua;
716 AFS_STATCNT(afs_xioctl);
721 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
722 /* This is an AFS vnode */
723 if (((uap->com >> 8) & 0xff) == 'V') {
724 struct afs_ioctl *datap;
726 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
727 code = copyin_afs_ioctl((char *)uap->arg, datap);
729 osi_FreeSmallSpace(datap);
733 code = HandleIoctl(tvc, uap->com, datap);
734 osi_FreeSmallSpace(datap);
742 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
750 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
754 int ioctlDone = 0, code = 0;
756 AFS_STATCNT(afs_xioctl);
757 if ((code = fdgetf(p, uap->fd, &fd)))
759 if (fd->f_type == DTYPE_VNODE) {
760 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
761 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
762 /* This is an AFS vnode */
763 if (((uap->com >> 8) & 0xff) == 'V') {
764 struct afs_ioctl *datap;
766 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
767 code = copyin_afs_ioctl((char *)uap->arg, datap);
769 osi_FreeSmallSpace(datap);
773 code = HandleIoctl(tvc, uap->com, datap);
774 osi_FreeSmallSpace(datap);
782 return ioctl(p, uap, retval);
786 #elif defined(AFS_XBSD_ENV)
787 # if defined(AFS_FBSD_ENV)
790 afs_xioctl(struct thread *td, struct ioctl_args *uap,
793 afs_proc_t *p = td->td_proc;
794 # elif defined(AFS_NBSD_ENV)
796 afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
806 afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
809 struct filedesc *fdp;
811 int ioctlDone = 0, code = 0;
814 AFS_STATCNT(afs_xioctl);
815 #if defined(AFS_NBSD40_ENV)
816 fdp = p->l_proc->p_fd;
820 #if defined(AFS_NBSD50_ENV)
821 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL)
823 #elif defined(AFS_FBSD100_ENV)
824 if ((uap->fd >= fdp->fd_nfiles)
825 || ((fd = fdp->fd_ofiles[uap->fd].fde_file) == NULL))
828 if ((uap->fd >= fdp->fd_nfiles)
829 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL))
832 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
834 /* first determine whether this is any sort of vnode */
835 if (fd->f_type == DTYPE_VNODE) {
836 /* good, this is a vnode; next see if it is an AFS vnode */
837 # if defined(AFS_OBSD_ENV)
839 IsAfsVnode((struct vnode *)fd->
840 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
842 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
844 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)) {
845 /* This is an AFS vnode */
846 #if defined(AFS_NBSD50_ENV)
847 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
849 if (((uap->com >> 8) & 0xff) == 'V') {
851 struct afs_ioctl *datap;
853 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
854 #if defined(AFS_NBSD50_ENV)
855 code = copyin_afs_ioctl(SCARG(uap, data), datap);
857 code = copyin_afs_ioctl((char *)uap->arg, datap);
860 osi_FreeSmallSpace(datap);
864 #if defined(AFS_NBSD50_ENV)
865 code = HandleIoctl(tvc, SCARG(uap, com), datap);
867 code = HandleIoctl(tvc, uap->com, datap);
869 osi_FreeSmallSpace(datap);
876 #if defined(AFS_NBSD50_ENV)
877 fd_putfile(SCARG(uap, fd));
881 # if defined(AFS_FBSD_ENV)
882 # if (__FreeBSD_version >= 900044)
883 return sys_ioctl(td, uap);
885 return ioctl(td, uap);
887 # elif defined(AFS_OBSD_ENV)
888 code = sys_ioctl(p, uap, retval);
889 # elif defined(AFS_NBSD_ENV)
890 code = sys_ioctl(p, uap, retval);
896 #elif defined(UKERNEL)
904 } *uap = (struct a *)get_user_struct()->u_ap;
907 int ioctlDone = 0, code = 0;
909 AFS_STATCNT(afs_xioctl);
914 /* first determine whether this is any sort of vnode */
915 if (fd->f_type == DTYPE_VNODE) {
916 /* good, this is a vnode; next see if it is an AFS vnode */
917 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
918 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
919 /* This is an AFS vnode */
920 if (((uap->com >> 8) & 0xff) == 'V') {
921 struct afs_ioctl *datap;
923 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
924 code=copyin_afs_ioctl((char *)uap->arg, datap);
926 osi_FreeSmallSpace(datap);
929 return (setuerror(code), code);
931 code = HandleIoctl(tvc, uap->com, datap);
932 osi_FreeSmallSpace(datap);
945 #endif /* AFS_HPUX102_ENV */
947 #if defined(AFS_SGI_ENV)
948 /* "pioctl" system call entry point; just pass argument to the parameterized
957 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
961 AFS_STATCNT(afs_pioctl);
963 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
965 # ifdef AFS_SGI64_ENV
972 #elif defined(AFS_FBSD_ENV)
974 afs_pioctl(struct thread *td, void *args, int *retval)
981 } *uap = (struct a *)args;
983 AFS_STATCNT(afs_pioctl);
984 return (afs_syscall_pioctl
985 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
988 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
990 afs_pioctl(afs_proc_t *p, void *args, int *retval)
997 } *uap = (struct a *)args;
999 AFS_STATCNT(afs_pioctl);
1000 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
1001 return (afs_syscall_pioctl
1002 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1005 return (afs_syscall_pioctl
1006 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1007 # if defined(AFS_FBSD_ENV)
1010 p->p_cred->pc_ucred));
1017 /* macro to avoid adding any more #ifdef's to pioctl code. */
1018 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1019 #define PIOCTL_FREE_CRED() crfree(credp)
1021 #define PIOCTL_FREE_CRED()
1026 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1027 rval_t *vvp, afs_ucred_t *credp)
1029 #ifdef AFS_DARWIN100_ENV
1030 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1031 int follow, afs_ucred_t *credp)
1032 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1033 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1036 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1040 struct afs_ioctl data;
1041 #ifdef AFS_NEED_CLIENTCONTEXT
1042 afs_ucred_t *tmpcred = NULL;
1044 #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)
1045 afs_ucred_t *foreigncreds = NULL;
1048 struct vnode *vp = NULL;
1049 #ifdef AFS_AIX41_ENV
1050 struct ucred *credp = crref(); /* don't free until done! */
1052 #ifdef AFS_LINUX22_ENV
1053 cred_t *credp = crref(); /* don't free until done! */
1057 AFS_STATCNT(afs_syscall_pioctl);
1059 follow = 1; /* compat. with old venus */
1060 code = copyin_afs_ioctl(cmarg, &data);
1063 #if defined(KERNEL_HAVE_UERROR)
1068 if ((com & 0xff) == PSetClientContext) {
1069 #ifdef AFS_NEED_CLIENTCONTEXT
1070 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1071 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1073 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1077 crfree(foreigncreds);
1080 #if defined(KERNEL_HAVE_UERROR)
1081 return (setuerror(code), code);
1086 #else /* AFS_NEED_CLIENTCONTEXT */
1088 #endif /* AFS_NEED_CLIENTCONTEXT */
1090 #ifdef AFS_NEED_CLIENTCONTEXT
1093 * We could have done without temporary setting the u.u_cred below
1094 * (foreigncreds could be passed as param the pioctl modules)
1095 * but calls such as afs_osi_suser() doesn't allow that since it
1096 * references u.u_cred directly. We could, of course, do something
1097 * like afs_osi_suser(cred) which, I think, is better since it
1098 * generalizes and supports multi cred environments...
1100 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1102 credp = foreigncreds;
1103 #elif defined(AFS_AIX41_ENV)
1104 tmpcred = crref(); /* XXX */
1105 crset(foreigncreds);
1106 #elif defined(AFS_HPUX101_ENV)
1107 tmpcred = p_cred(u.u_procp);
1108 set_p_cred(u.u_procp, foreigncreds);
1109 #elif defined(AFS_SGI_ENV)
1110 tmpcred = OSI_GET_CURRENT_CRED();
1111 OSI_SET_CURRENT_CRED(foreigncreds);
1114 u.u_cred = foreigncreds;
1117 #endif /* AFS_NEED_CLIENTCONTEXT */
1118 if ((com & 0xff) == 15) {
1119 /* special case prefetch so entire pathname eval occurs in helper process.
1120 * otherwise, the pioctl call is essentially useless */
1121 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1123 Prefetch(path, &data, follow,
1124 foreigncreds ? foreigncreds : credp);
1126 code = Prefetch(path, &data, follow, osi_curcred());
1129 #if defined(KERNEL_HAVE_UERROR)
1136 #ifdef AFS_AIX41_ENV
1138 lookupname(path, USR, follow, NULL, &vp,
1139 foreigncreds ? foreigncreds : credp);
1141 #ifdef AFS_LINUX22_ENV
1142 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1144 vp = (struct vnode *)dp->d_inode;
1146 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1147 #endif /* AFS_LINUX22_ENV */
1148 #endif /* AFS_AIX41_ENV */
1152 #if defined(KERNEL_HAVE_UERROR)
1160 #if defined(AFS_SUN510_ENV)
1161 if (vp && !IsAfsVnode(vp)) {
1162 struct vnode *realvp;
1164 #ifdef AFS_SUN511_ENV
1165 (VOP_REALVP(vp, &realvp, NULL) == 0)
1167 (VOP_REALVP(vp, &realvp) == 0)
1170 struct vnode *oldvp = vp;
1178 /* now make the call if we were passed no file, or were passed an AFS file */
1179 if (!vp || IsAfsVnode(vp)) {
1180 #if defined(AFS_SUN5_ENV)
1181 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1182 #elif defined(AFS_AIX41_ENV)
1184 struct ucred *cred1, *cred2;
1187 cred1 = cred2 = foreigncreds;
1189 cred1 = cred2 = credp;
1191 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1192 if (cred1 != cred2) {
1193 /* something changed the creds */
1197 #elif defined(AFS_HPUX101_ENV)
1199 struct ucred *cred = p_cred(u.u_procp);
1200 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1202 #elif defined(AFS_SGI_ENV)
1205 credp = OSI_GET_CURRENT_CRED();
1206 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1208 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1209 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1210 #elif defined(UKERNEL)
1211 code = afs_HandlePioctl(vp, com, &data, follow,
1212 &(get_user_struct()->u_cred));
1214 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1217 #if defined(KERNEL_HAVE_UERROR)
1220 code = EINVAL; /* not in /afs */
1225 #if defined(AFS_NEED_CLIENTCONTEXT)
1227 #ifdef AFS_AIX41_ENV
1228 crset(tmpcred); /* restore original credentials */
1230 #if defined(AFS_HPUX101_ENV)
1231 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1232 #elif defined(AFS_SGI_ENV)
1233 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1234 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1235 credp = tmpcred; /* restore original credentials */
1237 osi_curcred() = tmpcred; /* restore original credentials */
1238 #endif /* AFS_HPUX101_ENV */
1239 crfree(foreigncreds);
1242 #endif /* AFS_NEED_CLIENTCONTEXT */
1244 #ifdef AFS_LINUX22_ENV
1246 * Holding the global lock when calling dput can cause a deadlock
1247 * when the kernel calls back into afs_dentry_iput
1253 #if defined(AFS_FBSD80_ENV)
1254 if (VOP_ISLOCKED(vp))
1256 #endif /* AFS_FBSD80_ENV */
1257 AFS_RELE(vp); /* put vnode back */
1261 #if defined(KERNEL_HAVE_UERROR)
1264 return (getuerror());
1270 #ifdef AFS_DARWIN100_ENV
1272 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1273 int follow, afs_ucred_t *credp)
1275 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1276 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1281 #define MAXPIOCTLTOKENLEN \
1282 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1285 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1286 struct afs_ioctl *ablob, int afollow,
1287 afs_ucred_t **acred)
1290 struct vrequest treq;
1292 afs_int32 function, device;
1293 struct afs_pdata input, output;
1294 struct afs_pdata copyInput, copyOutput;
1296 pioctlFunction *pioctlSw;
1298 struct afs_fakestat_state fakestate;
1300 memset(&input, 0, sizeof(input));
1301 memset(&output, 0, sizeof(output));
1303 avc = avp ? VTOAFS(avp) : NULL;
1304 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1305 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1306 AFS_STATCNT(HandlePioctl);
1308 code = afs_InitReq(&treq, *acred);
1312 afs_InitFakeStat(&fakestate);
1314 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1318 device = (acom & 0xff00) >> 8;
1320 case 'V': /* Original pioctls */
1321 pioctlSw = VpioctlSw;
1322 pioctlSwSize = sizeof(VpioctlSw);
1324 case 'C': /* Coordinated/common pioctls */
1325 pioctlSw = CpioctlSw;
1326 pioctlSwSize = sizeof(CpioctlSw);
1328 case 'O': /* Coordinated/common pioctls */
1329 pioctlSw = OpioctlSw;
1330 pioctlSwSize = sizeof(OpioctlSw);
1336 function = acom & 0xff;
1337 if (function >= (pioctlSwSize / sizeof(char *))) {
1342 /* Do all range checking before continuing */
1343 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1344 ablob->in_size < 0 || ablob->out_size < 0) {
1349 code = afs_pd_alloc(&input, ablob->in_size);
1353 if (ablob->in_size > 0) {
1354 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1355 input.ptr[input.remaining] = '\0';
1360 if ((function == 8 && device == 'V') ||
1361 (function == 7 && device == 'C')) { /* PGetTokens */
1362 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1364 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1370 copyOutput = output;
1373 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1374 ©Output, acred);
1376 outSize = copyOutput.ptr - output.ptr;
1378 if (code == 0 && ablob->out_size > 0) {
1379 if (outSize > ablob->out_size) {
1380 code = E2BIG; /* data wont fit in user buffer */
1381 } else if (outSize) {
1382 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1387 afs_pd_free(&input);
1388 afs_pd_free(&output);
1390 afs_PutFakeStat(&fakestate);
1391 return afs_CheckCode(code, &treq, 41);
1395 * VIOCGETFID (22) - Get file ID quickly
1399 * \param[in] ain not in use
1400 * \param[out] aout fid of requested file
1402 * \retval EINVAL Error if some of the initial arguments aren't set
1404 * \post get the file id of some file
1406 DECL_PIOCTL(PGetFID)
1408 AFS_STATCNT(PGetFID);
1411 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1417 * VIOCSETAL (1) - Set access control list
1421 * \param[in] ain the ACL being set
1422 * \param[out] aout the ACL being set returned
1424 * \retval EINVAL Error if some of the standard args aren't set
1426 * \post Changed ACL, via direct writing to the wire
1429 dummy_PSetAcl(char *ain, char *aout)
1434 DECL_PIOCTL(PSetAcl)
1437 struct afs_conn *tconn;
1438 struct AFSOpaque acl;
1439 struct AFSVolSync tsync;
1440 struct AFSFetchStatus OutStatus;
1441 struct rx_connection *rxconn;
1444 AFS_STATCNT(PSetAcl);
1448 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1450 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1451 if (acl.AFSOpaque_len > 1024)
1455 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1457 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1460 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1461 &acl, &OutStatus, &tsync);
1466 } while (afs_Analyze
1467 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1468 SHARED_LOCK, NULL));
1470 /* now we've forgotten all of the access info */
1471 ObtainWriteLock(&afs_xcbhash, 455);
1473 afs_DequeueCallback(avc);
1474 avc->f.states &= ~(CStatd | CUnique);
1475 ReleaseWriteLock(&afs_xcbhash);
1476 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1477 osi_dnlc_purgedp(avc);
1479 /* SXW - Should we flush metadata here? */
1483 int afs_defaultAsynchrony = 0;
1486 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1490 * \param[in] ain sbstruct (store behind structure) input
1491 * \param[out] aout resulting sbstruct
1494 * Error if the user doesn't have super-user credentials
1496 * Error if there isn't enough access to not check the mode bits
1499 * Changes either the default asynchrony (the amount of data that
1500 * can remain to be written when the cache manager returns control
1501 * to the user), or the asyncrony for the specified file.
1503 DECL_PIOCTL(PStoreBehind)
1505 struct sbstruct sbr;
1507 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1510 if (sbr.sb_default != -1) {
1511 if (afs_osi_suser(*acred))
1512 afs_defaultAsynchrony = sbr.sb_default;
1517 if (avc && (sbr.sb_thisfile != -1)) {
1519 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1520 avc->asynchrony = sbr.sb_thisfile;
1525 memset(&sbr, 0, sizeof(sbr));
1526 sbr.sb_default = afs_defaultAsynchrony;
1528 sbr.sb_thisfile = avc->asynchrony;
1531 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1535 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1539 * \param[in] ain not in use
1540 * \param[out] aout not in use
1542 * \retval EACCES Error if the user doesn't have super-user credentials
1544 * \post set the gcpags to GCPAGS_USERDISABLED
1546 DECL_PIOCTL(PGCPAGs)
1548 if (!afs_osi_suser(*acred)) {
1551 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1556 * VIOCGETAL (2) - Get access control list
1560 * \param[in] ain not in use
1561 * \param[out] aout the ACL
1563 * \retval EINVAL Error if some of the standard args aren't set
1564 * \retval ERANGE Error if the vnode of the file id is too large
1565 * \retval -1 Error if getting the ACL failed
1567 * \post Obtain the ACL, based on file ID
1570 * There is a hack to tell which type of ACL is being returned, checks
1571 * the top 2-bytes of the input size to judge what type of ACL it is,
1572 * only for dfs xlator ACLs
1574 DECL_PIOCTL(PGetAcl)
1576 struct AFSOpaque acl;
1577 struct AFSVolSync tsync;
1578 struct AFSFetchStatus OutStatus;
1580 struct afs_conn *tconn;
1582 struct rx_connection *rxconn;
1585 AFS_STATCNT(PGetAcl);
1588 Fid.Volume = avc->f.fid.Fid.Volume;
1589 Fid.Vnode = avc->f.fid.Fid.Vnode;
1590 Fid.Unique = avc->f.fid.Fid.Unique;
1591 if (avc->f.states & CForeign) {
1593 * For a dfs xlator acl we have a special hack so that the
1594 * xlator will distinguish which type of acl will return. So
1595 * we currently use the top 2-bytes (vals 0-4) to tell which
1596 * type of acl to bring back. Horrible hack but this will
1597 * cause the least number of changes to code size and interfaces.
1599 if (Fid.Vnode & 0xc0000000)
1601 Fid.Vnode |= (ain->remaining << 30);
1603 acl.AFSOpaque_val = aout->ptr;
1605 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1607 acl.AFSOpaque_val[0] = '\0';
1608 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1610 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1615 } while (afs_Analyze
1616 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1617 SHARED_LOCK, NULL));
1620 if (acl.AFSOpaque_len == 0)
1621 afs_pd_skip(aout, 1); /* leave the NULL */
1623 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1629 * PNoop returns success. Used for functions which are not implemented
1630 * or are no longer in use.
1634 * \retval Always returns success
1637 * Functions involved in this:
1638 * 17 (VIOCENGROUP) -- used to be enable group;
1639 * 18 (VIOCDISGROUP) -- used to be disable group;
1640 * 2 (?) -- get/set cache-bypass size threshold
1649 * PBogus returns fail. Used for functions which are not implemented or
1650 * are no longer in use.
1654 * \retval EINVAL Always returns this value
1657 * Functions involved in this:
1663 * 13 (VIOCGETTIME) -- used to be quick check time;
1664 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1665 * 16 (VIOCNOP) -- used to be testing code;
1666 * 19 (VIOCLISTGROUPS) -- used to be list group;
1667 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1668 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1669 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1670 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1671 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1672 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1673 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1674 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1675 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1676 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1677 * 68 (?) -- arla: fetch stats;
1681 AFS_STATCNT(PBogus);
1686 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1690 * \param[in] ain not in use (avc used to pass in file id)
1691 * \param[out] aout cell name
1693 * \retval EINVAL Error if some of the standard args aren't set
1694 * \retval ESRCH Error if the file isn't part of a cell
1696 * \post Get a cell based on a passed in file id
1698 DECL_PIOCTL(PGetFileCell)
1702 AFS_STATCNT(PGetFileCell);
1705 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1709 if (afs_pd_putString(aout, tcell->cellName) != 0)
1712 afs_PutCell(tcell, READ_LOCK);
1717 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1721 * \param[in] ain not in use
1722 * \param[out] aout cell name
1725 * Error if the afs daemon hasn't started yet
1727 * Error if the machine isn't part of a cell, for whatever reason
1729 * \post Get the primary cell that the machine is a part of.
1731 DECL_PIOCTL(PGetWSCell)
1733 struct cell *tcell = NULL;
1735 AFS_STATCNT(PGetWSCell);
1736 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1737 return EIO; /* Inappropriate ioctl for device */
1739 tcell = afs_GetPrimaryCell(READ_LOCK);
1740 if (!tcell) /* no primary cell? */
1743 if (afs_pd_putString(aout, tcell->cellName) != 0)
1745 afs_PutCell(tcell, READ_LOCK);
1750 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1754 * \param[in] ain not in use (user id found via areq)
1755 * \param[out] aout cell name
1758 * Error if the user id doesn't have a primary cell specified
1760 * \post Get the primary cell for a certain user, based on the user's uid
1762 DECL_PIOCTL(PGetUserCell)
1765 struct unixuser *tu;
1768 AFS_STATCNT(PGetUserCell);
1769 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1770 return EIO; /* Inappropriate ioctl for device */
1772 /* return the cell name of the primary cell for this user */
1773 i = UHash(areq->uid);
1774 ObtainWriteLock(&afs_xuser, 224);
1775 for (tu = afs_users[i]; tu; tu = tu->next) {
1776 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1778 ReleaseWriteLock(&afs_xuser);
1779 afs_LockUser(tu, READ_LOCK, 0);
1784 tcell = afs_GetCell(tu->cell, READ_LOCK);
1785 afs_PutUser(tu, READ_LOCK);
1789 if (afs_pd_putString(aout, tcell->cellName) != 0)
1791 afs_PutCell(tcell, READ_LOCK);
1794 ReleaseWriteLock(&afs_xuser);
1799 /* Work out which cell we're changing tokens for */
1801 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1809 if (cellName && strlen(cellName) > 0) {
1810 cell = afs_GetCellByName(cellName, READ_LOCK);
1812 cell = afs_GetPrimaryCell(READ_LOCK);
1823 *cellNum = cell->cellNum;
1824 afs_PutCell(cell, READ_LOCK);
1831 _settok_setParentPag(afs_ucred_t **cred) {
1833 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1835 osi_procname(procname, 256);
1836 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1837 MyPidxx2Pid(MyPidxx), procname);
1838 return setpag(osi_curproc(), cred, -1, &pag, 1);
1840 return setpag(cred, -1, &pag, 1);
1845 * VIOCSETTOK (3) - Set authentication tokens
1849 * \param[in] ain the krb tickets from which to set the afs tokens
1850 * \param[out] aout not in use
1853 * Error if the ticket is either too long or too short
1855 * Error if the AFS initState is below 101
1857 * Error if the cell for which the Token is being set can't be found
1860 * Set the Tokens for a specific cell name, unless there is none set,
1861 * then default to primary
1864 DECL_PIOCTL(PSetTokens)
1869 struct unixuser *tu;
1870 struct ClearToken clear;
1874 struct vrequest treq;
1875 afs_int32 flag, set_parent_pag = 0;
1877 AFS_STATCNT(PSetTokens);
1878 if (!afs_resourceinit_flag) {
1882 if (afs_pd_getInt(ain, &stLen) != 0)
1885 stp = afs_pd_where(ain); /* remember where the ticket is */
1886 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1887 return EINVAL; /* malloc may fail */
1888 if (afs_pd_skip(ain, stLen) != 0)
1891 if (afs_pd_getInt(ain, &size) != 0)
1893 if (size != sizeof(struct ClearToken))
1896 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1899 if (clear.AuthHandle == -1)
1900 clear.AuthHandle = 999; /* more rxvab compat stuff */
1902 if (afs_pd_remaining(ain) != 0) {
1903 /* still stuff left? we've got primary flag and cell name.
1906 if (afs_pd_getInt(ain, &flag) != 0)
1909 /* some versions of gcc appear to need != 0 in order to get this
1911 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1916 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1919 code = _settok_tokenCell(cellName, &cellNum, NULL);
1923 /* default to primary cell, primary id */
1924 code = _settok_tokenCell(NULL, &cellNum, &flag);
1929 if (set_parent_pag) {
1930 if (_settok_setParentPag(acred) == 0) {
1931 code = afs_InitReq(&treq, *acred);
1939 /* now we just set the tokens */
1940 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1941 /* Set tokens destroys any that are already there */
1942 afs_FreeTokens(&tu->tokens);
1943 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1945 afs_stats_cmfullperf.authent.TicketUpdates++;
1946 afs_ComputePAGStats();
1947 #endif /* AFS_NOSTATS */
1948 tu->states |= UHasTokens;
1949 tu->states &= ~UTokensBad;
1950 afs_SetPrimary(tu, flag);
1951 tu->tokenTime = osi_Time();
1952 afs_ResetUserConns(tu);
1953 afs_NotifyUser(tu, UTokensObtained);
1954 afs_PutUser(tu, WRITE_LOCK);
1960 * VIOCGETVOLSTAT (4) - Get volume status
1964 * \param[in] ain not in use
1965 * \param[out] aout status of the volume
1967 * \retval EINVAL Error if some of the standard args aren't set
1970 * The status of a volume (based on the FID of the volume), or an
1971 * offline message /motd
1973 DECL_PIOCTL(PGetVolumeStatus)
1976 char *offLineMsg = afs_osi_Alloc(256);
1977 char *motd = afs_osi_Alloc(256);
1978 struct afs_conn *tc;
1980 struct AFSFetchVolumeStatus volstat;
1982 struct rx_connection *rxconn;
1985 osi_Assert(offLineMsg != NULL);
1986 osi_Assert(motd != NULL);
1987 AFS_STATCNT(PGetVolumeStatus);
1994 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1996 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1999 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
2000 &Name, &offLineMsg, &motd);
2005 } while (afs_Analyze
2006 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
2007 SHARED_LOCK, NULL));
2011 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
2012 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2014 if (afs_pd_putString(aout, volName) != 0)
2016 if (afs_pd_putString(aout, offLineMsg) != 0)
2018 if (afs_pd_putString(aout, motd) != 0)
2021 afs_osi_Free(offLineMsg, 256);
2022 afs_osi_Free(motd, 256);
2027 * VIOCSETVOLSTAT (5) - Set volume status
2032 * values to set the status at, offline message, message of the day,
2033 * volume name, minimum quota, maximum quota
2035 * status of a volume, offlines messages, minimum quota, maximumm quota
2038 * Error if some of the standard args aren't set
2040 * Error if the volume is read only, or a backup volume
2042 * Error if the volume can't be accessed
2044 * Error if the volume name, offline message, and motd are too big
2047 * Set the status of a volume, including any offline messages,
2048 * a minimum quota, and a maximum quota
2050 DECL_PIOCTL(PSetVolumeStatus)
2055 struct afs_conn *tc;
2057 struct AFSFetchVolumeStatus volstat;
2058 struct AFSStoreVolumeStatus storeStat;
2060 struct rx_connection *rxconn;
2063 AFS_STATCNT(PSetVolumeStatus);
2067 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2069 if (tvp->states & (VRO | VBackup)) {
2070 afs_PutVolume(tvp, READ_LOCK);
2073 afs_PutVolume(tvp, READ_LOCK);
2078 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2081 if (afs_pd_getStringPtr(ain, &volName) != 0)
2083 if (strlen(volName) > 32)
2086 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2088 if (strlen(offLineMsg) > 256)
2091 if (afs_pd_getStringPtr(ain, &motd) != 0)
2093 if (strlen(motd) > 256)
2096 /* Done reading ... */
2099 if (volstat.MinQuota != -1) {
2100 storeStat.MinQuota = volstat.MinQuota;
2101 storeStat.Mask |= AFS_SETMINQUOTA;
2103 if (volstat.MaxQuota != -1) {
2104 storeStat.MaxQuota = volstat.MaxQuota;
2105 storeStat.Mask |= AFS_SETMAXQUOTA;
2108 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2110 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2113 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2114 volName, offLineMsg, motd);
2119 } while (afs_Analyze
2120 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2121 SHARED_LOCK, NULL));
2125 /* we are sending parms back to make compat. with prev system. should
2126 * change interface later to not ask for current status, just set new
2129 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2131 if (afs_pd_putString(aout, volName) != 0)
2133 if (afs_pd_putString(aout, offLineMsg) != 0)
2135 if (afs_pd_putString(aout, motd) != 0)
2142 * VIOCFLUSH (6) - Invalidate cache entry
2146 * \param[in] ain not in use
2147 * \param[out] aout not in use
2149 * \retval EINVAL Error if some of the standard args aren't set
2151 * \post Flush any information the cache manager has on an entry
2155 AFS_STATCNT(PFlush);
2158 #ifdef AFS_BOZONLOCK_ENV
2159 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2161 ObtainWriteLock(&avc->lock, 225);
2162 afs_ResetVCache(avc, *acred, 0);
2163 ReleaseWriteLock(&avc->lock);
2164 #ifdef AFS_BOZONLOCK_ENV
2165 afs_BozonUnlock(&avc->pvnLock, avc);
2171 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2176 * the last component in a path, related to mountpoint that we're
2177 * looking for information about
2179 * volume, cell, link data
2181 * \retval EINVAL Error if some of the standard args aren't set
2182 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2183 * \retval EIO Error if the link data can't be accessed
2185 * \post Get the volume, and cell, as well as the link data for a mount point
2187 DECL_PIOCTL(PNewStatMount)
2192 struct VenusFid tfid;
2195 struct sysname_info sysState;
2196 afs_size_t offset, len;
2198 AFS_STATCNT(PNewStatMount);
2202 if (afs_pd_getStringPtr(ain, &name) != 0)
2205 code = afs_VerifyVCache(avc, areq);
2208 if (vType(avc) != VDIR) {
2211 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2214 Check_AtSys(avc, name, &sysState, areq);
2215 ObtainReadLock(&tdc->lock);
2217 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2218 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2219 ReleaseReadLock(&tdc->lock);
2220 afs_PutDCache(tdc); /* we're done with the data */
2221 bufp = sysState.name;
2225 tfid.Cell = avc->f.fid.Cell;
2226 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2227 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2228 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2230 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2236 if (tvc->mvstat != 1) {
2241 ObtainWriteLock(&tvc->lock, 226);
2242 code = afs_HandleLink(tvc, areq);
2244 if (tvc->linkData) {
2245 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2248 /* we have the data */
2249 if (afs_pd_putString(aout, tvc->linkData) != 0)
2255 ReleaseWriteLock(&tvc->lock);
2258 if (sysState.allocked)
2259 osi_FreeLargeSpace(bufp);
2264 * A helper function to get the n'th cell which a particular user has tokens
2265 * for. This is racy. If new tokens are added whilst we're iterating, then
2266 * we may return some cells twice. If tokens expire mid run, then we'll
2267 * miss some cells from our output. So, could be better, but that would
2268 * require an interface change.
2271 static struct unixuser *
2272 getNthCell(afs_int32 uid, afs_int32 iterator) {
2274 struct unixuser *tu = NULL;
2277 ObtainReadLock(&afs_xuser);
2278 for (tu = afs_users[i]; tu; tu = tu->next) {
2279 if (tu->uid == uid && (tu->states & UHasTokens)) {
2280 if (iterator-- == 0)
2281 break; /* are we done yet? */
2287 ReleaseReadLock(&afs_xuser);
2289 afs_LockUser(tu, READ_LOCK, 0);
2296 * VIOCGETTOK (8) - Get authentication tokens
2300 * \param[in] ain cellid to return tokens for
2301 * \param[out] aout token
2304 * Error if the afs daemon hasn't started yet
2306 * Error if the input parameter is out of the bounds of the available
2309 * Error if there aren't tokens for this cell
2312 * If the input paramater exists, get the token that corresponds to
2313 * the parameter value, if there is no token at this value, get the
2314 * token for the first cell
2316 * \notes "it's a weird interface (from comments in the code)"
2319 DECL_PIOCTL(PGetTokens)
2322 struct unixuser *tu = NULL;
2323 union tokenUnion *token;
2324 afs_int32 iterator = 0;
2329 AFS_STATCNT(PGetTokens);
2330 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2331 return EIO; /* Inappropriate ioctl for device */
2333 /* weird interface. If input parameter is present, it is an integer and
2334 * we're supposed to return the parm'th tokens for this unix uid.
2335 * If not present, we just return tokens for cell 1.
2336 * If counter out of bounds, return EDOM.
2337 * If no tokens for the particular cell, return ENOTCONN.
2338 * Also, if this mysterious parm is present, we return, along with the
2339 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2340 * at the end, in that order.
2342 newStyle = (afs_pd_remaining(ain) > 0);
2344 if (afs_pd_getInt(ain, &iterator) != 0)
2348 tu = getNthCell(areq->uid, iterator);
2350 cellNum = afs_GetPrimaryCellNum();
2352 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2357 if (!(tu->states & UHasTokens)
2358 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2359 tu->states |= (UTokensBad | UNeedsReset);
2360 afs_NotifyUser(tu, UTokensDropped);
2361 afs_PutUser(tu, READ_LOCK);
2364 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2366 /* If they don't have an RXKAD token, but do have other tokens,
2367 * then sadly there's nothing this interface can do to help them. */
2371 /* for compat, we try to return 56 byte tix if they fit */
2372 iterator = token->rxkad.ticketLen;
2374 iterator = 56; /* # of bytes we're returning */
2376 if (afs_pd_putInt(aout, iterator) != 0)
2378 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2380 if (token->rxkad.ticketLen < 56) {
2381 /* Tokens are always 56 bytes or larger */
2382 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2387 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2389 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2390 sizeof(struct ClearToken)) != 0)
2394 /* put out primary id and cell name, too */
2395 iterator = (tu->states & UPrimary ? 1 : 0);
2396 if (afs_pd_putInt(aout, iterator) != 0)
2398 tcell = afs_GetCell(tu->cell, READ_LOCK);
2400 if (afs_pd_putString(aout, tcell->cellName) != 0)
2402 afs_PutCell(tcell, READ_LOCK);
2404 if (afs_pd_putString(aout, "") != 0)
2407 /* Got here, all is good */
2410 afs_PutUser(tu, READ_LOCK);
2415 * VIOCUNLOG (9) - Invalidate tokens
2419 * \param[in] ain not in use
2420 * \param[out] aout not in use
2422 * \retval EIO Error if the afs daemon hasn't been started yet
2424 * \post remove tokens from a user, specified by the user id
2426 * \notes sets the token's time to 0, which then causes it to be removed
2427 * \notes Unlog is the same as un-pag in OpenAFS
2432 struct unixuser *tu;
2434 AFS_STATCNT(PUnlog);
2435 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2436 return EIO; /* Inappropriate ioctl for device */
2438 i = UHash(areq->uid);
2439 ObtainWriteLock(&afs_xuser, 227);
2440 for (tu = afs_users[i]; tu; tu = tu->next) {
2441 if (tu->uid == areq->uid) {
2443 ReleaseWriteLock(&afs_xuser);
2445 afs_LockUser(tu, WRITE_LOCK, 366);
2447 tu->states &= ~UHasTokens;
2448 afs_FreeTokens(&tu->tokens);
2449 afs_NotifyUser(tu, UTokensDropped);
2450 /* We have to drop the lock over the call to afs_ResetUserConns,
2451 * since it obtains the afs_xvcache lock. We could also keep
2452 * the lock, and modify ResetUserConns to take parm saying we
2453 * obtained the lock already, but that is overkill. By keeping
2454 * the "tu" pointer held over the released lock, we guarantee
2455 * that we won't lose our place, and that we'll pass over
2456 * every user conn that existed when we began this call.
2458 afs_ResetUserConns(tu);
2459 afs_PutUser(tu, WRITE_LOCK);
2460 ObtainWriteLock(&afs_xuser, 228);
2462 /* set the expire times to 0, causes
2463 * afs_GCUserData to remove this entry
2466 #endif /* UKERNEL */
2469 ReleaseWriteLock(&afs_xuser);
2474 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2478 * \param[in] ain host address to be set
2479 * \param[out] aout old host address
2482 * depending on whether or not a variable is set, either get the host
2483 * for the cache manager monitor, or set the old address and give it
2486 * \notes Errors turn off mariner
2488 DECL_PIOCTL(PMariner)
2490 afs_int32 newHostAddr;
2491 afs_int32 oldHostAddr;
2493 AFS_STATCNT(PMariner);
2495 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2498 oldHostAddr = 0xffffffff; /* disabled */
2500 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2503 if (newHostAddr == 0xffffffff) {
2504 /* disable mariner operations */
2506 } else if (newHostAddr) {
2508 afs_marinerHost = newHostAddr;
2511 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2518 * VIOCCKSERV (10) - Check that servers are up
2522 * \param[in] ain name of the cell
2523 * \param[out] aout current down server list
2525 * \retval EIO Error if the afs daemon hasn't started yet
2526 * \retval EACCES Error if the user doesn't have super-user credentials
2527 * \retval ENOENT Error if we are unable to obtain the cell
2530 * Either a fast check (where it doesn't contact servers) or a
2531 * local check (checks local cell only)
2533 DECL_PIOCTL(PCheckServers)
2538 char *cellName = NULL;
2540 struct chservinfo *pcheck;
2542 AFS_STATCNT(PCheckServers);
2544 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2545 return EIO; /* Inappropriate ioctl for device */
2547 /* This is tricky, because we need to peak at the datastream to see
2548 * what we're getting. For now, let's cheat. */
2550 /* ain contains either an int32 or a string */
2551 if (ain->remaining == 0)
2554 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2555 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2559 if (pcheck->tinterval >= 0) {
2560 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2562 if (pcheck->tinterval > 0) {
2563 if (!afs_osi_suser(*acred))
2565 afs_probe_interval = pcheck->tinterval;
2569 temp = pcheck->tflags;
2571 cellName = pcheck->tbuffer;
2572 } else { /* For pre afs3.3 versions */
2573 if (afs_pd_getInt(ain, &temp) != 0)
2575 if (afs_pd_remaining(ain) > 0) {
2576 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2582 * 1: fast check, don't contact servers.
2583 * 2: local cell only.
2586 /* have cell name, too */
2587 cellp = afs_GetCellByName(cellName, READ_LOCK);
2592 if (!cellp && (temp & 2)) {
2593 /* use local cell */
2594 cellp = afs_GetPrimaryCell(READ_LOCK);
2596 if (!(temp & 1)) { /* if not fast, call server checker routine */
2597 afs_CheckServers(1, cellp); /* check down servers */
2598 afs_CheckServers(0, cellp); /* check up servers */
2600 /* now return the current down server list */
2601 ObtainReadLock(&afs_xserver);
2602 for (i = 0; i < NSERVERS; i++) {
2603 for (ts = afs_servers[i]; ts; ts = ts->next) {
2604 if (cellp && ts->cell != cellp)
2605 continue; /* cell spec'd and wrong */
2606 if ((ts->flags & SRVR_ISDOWN)
2607 && ts->addr->sa_portal != ts->cell->vlport) {
2608 afs_pd_putInt(aout, ts->addr->sa_ip);
2612 ReleaseReadLock(&afs_xserver);
2614 afs_PutCell(cellp, READ_LOCK);
2619 * VIOCCKBACK (11) - Check backup volume mappings
2623 * \param[in] ain not in use
2624 * \param[out] aout not in use
2626 * \retval EIO Error if the afs daemon hasn't started yet
2629 * Check the root volume, and then check the names if the volume
2630 * check variable is set to force, has expired, is busy, or if
2631 * the mount points variable is set
2633 DECL_PIOCTL(PCheckVolNames)
2635 AFS_STATCNT(PCheckVolNames);
2636 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2637 return EIO; /* Inappropriate ioctl for device */
2639 afs_CheckRootVolume();
2640 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2641 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2646 * VIOCCKCONN (12) - Check connections for a user
2650 * \param[in] ain not in use
2651 * \param[out] aout not in use
2654 * Error if no user is specififed, the user has no tokens set,
2655 * or if the user's tokens are bad
2658 * check to see if a user has the correct authentication.
2659 * If so, allow access.
2661 * \notes Check the connections to all the servers specified
2663 DECL_PIOCTL(PCheckAuth)
2667 struct sa_conn_vector *tcv;
2668 struct unixuser *tu;
2671 AFS_STATCNT(PCheckAuth);
2672 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2673 return EIO; /* Inappropriate ioctl for device */
2676 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2680 /* we have a user */
2681 ObtainReadLock(&afs_xsrvAddr);
2682 ObtainReadLock(&afs_xconn);
2684 /* any tokens set? */
2685 if ((tu->states & UHasTokens) == 0)
2687 /* all connections in cell 1 working? */
2688 for (i = 0; i < NSERVERS; i++) {
2689 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2690 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2691 if (tcv->user == tu && (tu->states & UTokensBad))
2696 ReleaseReadLock(&afs_xsrvAddr);
2697 ReleaseReadLock(&afs_xconn);
2698 afs_PutUser(tu, READ_LOCK);
2700 if (afs_pd_putInt(aout, retValue) != 0)
2706 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2711 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2717 AFS_STATCNT(Prefetch);
2720 tp = osi_AllocLargeSpace(1024);
2721 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2723 osi_FreeLargeSpace(tp);
2726 if (afs_BBusy()) { /* do this as late as possible */
2727 osi_FreeLargeSpace(tp);
2728 return EWOULDBLOCK; /* pretty close */
2730 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2731 (afs_size_t) 0, tp, (void *)0, (void *)0);
2736 * VIOCWHEREIS (14) - Find out where a volume is located
2740 * \param[in] ain not in use
2741 * \param[out] aout volume location
2743 * \retval EINVAL Error if some of the default arguments don't exist
2744 * \retval ENODEV Error if there is no such volume
2746 * \post fine a volume, based on a volume file id
2748 * \notes check each of the servers specified
2750 DECL_PIOCTL(PFindVolume)
2757 AFS_STATCNT(PFindVolume);
2760 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2764 for (i = 0; i < AFS_MAXHOSTS; i++) {
2765 ts = tvp->serverHost[i];
2768 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2773 if (i < AFS_MAXHOSTS) {
2774 /* still room for terminating NULL, add it on */
2775 if (afs_pd_putInt(aout, 0) != 0) {
2781 afs_PutVolume(tvp, READ_LOCK);
2786 * VIOCACCESS (20) - Access using PRS_FS bits
2790 * \param[in] ain PRS_FS bits
2791 * \param[out] aout not in use
2793 * \retval EINVAL Error if some of the initial arguments aren't set
2794 * \retval EACCES Error if access is denied
2796 * \post check to make sure access is allowed
2798 DECL_PIOCTL(PViceAccess)
2803 AFS_STATCNT(PViceAccess);
2807 code = afs_VerifyVCache(avc, areq);
2811 if (afs_pd_getInt(ain, &temp) != 0)
2814 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2822 * VIOC_GETPAG (13) - Get PAG value
2826 * \param[in] ain not in use
2827 * \param[out] aout PAG value or NOPAG
2829 * \post get PAG value for the caller's cred
2831 DECL_PIOCTL(PGetPAG)
2835 pag = PagInCred(*acred);
2837 return afs_pd_putInt(aout, pag);
2840 DECL_PIOCTL(PPrecache)
2844 /*AFS_STATCNT(PPrecache);*/
2845 if (!afs_osi_suser(*acred))
2848 if (afs_pd_getInt(ain, &newValue) != 0)
2851 afs_preCache = newValue*1024;
2856 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2860 * \param[in] ain the size the venus cache should be set to
2861 * \param[out] aout not in use
2863 * \retval EACCES Error if the user doesn't have super-user credentials
2864 * \retval EROFS Error if the cache is set to be in memory
2867 * Set the cache size based on user input. If no size is given,
2868 * set it to the default OpenAFS cache size.
2871 * recompute the general cache parameters for every single block allocated
2873 DECL_PIOCTL(PSetCacheSize)
2878 AFS_STATCNT(PSetCacheSize);
2880 if (!afs_osi_suser(*acred))
2882 /* too many things are setup initially in mem cache version */
2883 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2885 if (afs_pd_getInt(ain, &newValue) != 0)
2888 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2890 if (newValue < afs_min_cache)
2891 afs_cacheBlocks = afs_min_cache;
2893 afs_cacheBlocks = newValue;
2895 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2896 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2897 afs_MaybeWakeupTruncateDaemon();
2898 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2899 afs_osi_Wait(1000, 0, 0);
2900 afs_MaybeWakeupTruncateDaemon();
2905 #define MAXGCSTATS 16
2907 * VIOCGETCACHEPARMS (40) - Get cache stats
2911 * \param[in] ain afs index flags
2912 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2914 * \post Get the cache blocks, and how many of the cache blocks there are
2916 DECL_PIOCTL(PGetCacheSize)
2918 afs_int32 results[MAXGCSTATS];
2920 struct dcache * tdc;
2923 AFS_STATCNT(PGetCacheSize);
2925 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2926 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2927 } else if (afs_pd_remaining(ain) == 0) {
2933 memset(results, 0, sizeof(results));
2934 results[0] = afs_cacheBlocks;
2935 results[1] = afs_blocksUsed;
2936 results[2] = afs_cacheFiles;
2939 for (i = 0; i < afs_cacheFiles; i++) {
2940 if (afs_indexFlags[i] & IFFree) results[3]++;
2942 } else if (2 == flags){
2943 for (i = 0; i < afs_cacheFiles; i++) {
2944 if (afs_indexFlags[i] & IFFree) results[3]++;
2945 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2946 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2947 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2948 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2949 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2951 tdc = afs_indexTable[i];
2954 size = tdc->validPos;
2955 if ( 0 < size && size < (1<<12) ) results[10]++;
2956 else if (size < (1<<14) ) results[11]++;
2957 else if (size < (1<<16) ) results[12]++;
2958 else if (size < (1<<18) ) results[13]++;
2959 else if (size < (1<<20) ) results[14]++;
2960 else if (size >= (1<<20) ) results[15]++;
2964 return afs_pd_putBytes(aout, results, sizeof(results));
2968 * VIOCFLUSHCB (25) - Flush callback only
2972 * \param[in] ain not in use
2973 * \param[out] aout not in use
2975 * \retval EINVAL Error if some of the standard args aren't set
2976 * \retval 0 0 returned if the volume is set to read-only
2979 * Flushes callbacks, by setting the length of callbacks to one,
2980 * setting the next callback to be sent to the CB_DROPPED value,
2981 * and then dequeues everything else.
2983 DECL_PIOCTL(PRemoveCallBack)
2985 struct afs_conn *tc;
2987 struct AFSCallBack CallBacks_Array[1];
2988 struct AFSCBFids theFids;
2989 struct AFSCBs theCBs;
2990 struct rx_connection *rxconn;
2993 AFS_STATCNT(PRemoveCallBack);
2996 if (avc->f.states & CRO)
2997 return 0; /* read-only-ness can't change */
2998 ObtainWriteLock(&avc->lock, 229);
2999 theFids.AFSCBFids_len = 1;
3000 theCBs.AFSCBs_len = 1;
3001 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
3002 theCBs.AFSCBs_val = CallBacks_Array;
3003 CallBacks_Array[0].CallBackType = CB_DROPPED;
3004 if (avc->callback) {
3006 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3008 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
3010 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3014 /* don't set code on failure since we wouldn't use it */
3015 } while (afs_Analyze
3016 (tc, rxconn, code, &avc->f.fid, areq,
3017 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3019 ObtainWriteLock(&afs_xcbhash, 457);
3020 afs_DequeueCallback(avc);
3022 avc->f.states &= ~(CStatd | CUnique);
3023 ReleaseWriteLock(&afs_xcbhash);
3024 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3025 osi_dnlc_purgedp(avc);
3027 ReleaseWriteLock(&avc->lock);
3032 * VIOCNEWCELL (26) - Configure new cell
3037 * the name of the cell, the hosts that will be a part of the cell,
3038 * whether or not it's linked with another cell, the other cell it's
3039 * linked with, the file server port, and the volume server port
3043 * \retval EIO Error if the afs daemon hasn't started yet
3044 * \retval EACCES Error if the user doesn't have super-user cedentials
3045 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3047 * \post creates a new cell
3049 DECL_PIOCTL(PNewCell)
3051 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3052 char *newcell = NULL;
3053 char *linkedcell = NULL;
3055 afs_int32 linkedstate = 0;
3056 afs_int32 fsport = 0, vlport = 0;
3059 AFS_STATCNT(PNewCell);
3060 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3061 return EIO; /* Inappropriate ioctl for device */
3063 if (!afs_osi_suser(*acred))
3066 if (afs_pd_getInt(ain, &magic) != 0)
3068 if (magic != 0x12345678)
3071 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3072 * server addresses while the 3.5 fs newcell command passes
3073 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3076 * This whole logic is bogus, because it relies on the newer command
3077 * sending its 12th address as 0.
3079 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3082 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3083 if (newcell[0] != '\0') {
3086 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3089 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3090 if (afs_pd_getBytes(ain, &cellHosts,
3091 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3093 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3096 if (afs_pd_getInt(ain, &fsport) != 0)
3099 fsport = 0; /* Privileged ports not allowed */
3101 if (afs_pd_getInt(ain, &vlport) != 0)
3104 vlport = 0; /* Privileged ports not allowed */
3106 if (afs_pd_getInt(ain, &ls) != 0)
3109 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3113 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3115 linkedstate |= CLinkedCell;
3118 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3120 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3125 DECL_PIOCTL(PNewAlias)
3127 /* create a new cell alias */
3128 char *realName, *aliasName;
3130 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3131 return EIO; /* Inappropriate ioctl for device */
3133 if (!afs_osi_suser(*acred))
3136 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3138 if (afs_pd_getStringPtr(ain, &realName) != 0)
3141 return afs_NewCellAlias(aliasName, realName);
3145 * VIOCGETCELL (27) - Get cell info
3149 * \param[in] ain The cell index of a specific cell
3150 * \param[out] aout list of servers in the cell
3152 * \retval EIO Error if the afs daemon hasn't started yet
3153 * \retval EDOM Error if there is no cell asked about
3155 * \post Lists the cell's server names and and addresses
3157 DECL_PIOCTL(PListCells)
3159 afs_int32 whichCell;
3160 struct cell *tcell = 0;
3164 AFS_STATCNT(PListCells);
3165 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3166 return EIO; /* Inappropriate ioctl for device */
3168 if (afs_pd_getInt(ain, &whichCell) != 0)
3171 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3177 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3178 if (tcell->cellHosts[i] == 0)
3180 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3183 for (;i < AFS_MAXCELLHOSTS; i++) {
3184 if (afs_pd_putInt(aout, 0) != 0)
3187 if (afs_pd_putString(aout, tcell->cellName) != 0)
3192 afs_PutCell(tcell, READ_LOCK);
3196 DECL_PIOCTL(PListAliases)
3198 afs_int32 whichAlias;
3199 struct cell_alias *tcalias = 0;
3202 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3203 return EIO; /* Inappropriate ioctl for device */
3205 if (afs_pd_getInt(ain, &whichAlias) != 0)
3208 tcalias = afs_GetCellAlias(whichAlias);
3209 if (tcalias == NULL)
3213 if (afs_pd_putString(aout, tcalias->alias) != 0)
3215 if (afs_pd_putString(aout, tcalias->cell) != 0)
3220 afs_PutCellAlias(tcalias);
3225 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3229 * \param[in] ain the name of the file in this dir to remove
3230 * \param[out] aout not in use
3233 * Error if some of the standard args aren't set
3235 * Error if the argument to remove is not a directory
3237 * Error if there is no cache to remove the mount point from or
3238 * if a vcache doesn't exist
3241 * Ensure that everything is OK before deleting the mountpoint.
3242 * If not, don't delete. Delete a mount point based on a file id.
3244 DECL_PIOCTL(PRemoveMount)
3249 struct sysname_info sysState;
3250 afs_size_t offset, len;
3251 struct afs_conn *tc;
3254 struct AFSFetchStatus OutDirStatus;
3255 struct VenusFid tfid;
3256 struct AFSVolSync tsync;
3257 struct rx_connection *rxconn;
3260 /* "ain" is the name of the file in this dir to remove */
3262 AFS_STATCNT(PRemoveMount);
3265 if (afs_pd_getStringPtr(ain, &name) != 0)
3268 code = afs_VerifyVCache(avc, areq);
3271 if (vType(avc) != VDIR)
3274 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3277 Check_AtSys(avc, name, &sysState, areq);
3278 ObtainReadLock(&tdc->lock);
3280 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3281 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3282 ReleaseReadLock(&tdc->lock);
3283 bufp = sysState.name;
3288 tfid.Cell = avc->f.fid.Cell;
3289 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3290 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3291 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3293 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3300 if (tvc->mvstat != 1) {
3306 ObtainWriteLock(&tvc->lock, 230);
3307 code = afs_HandleLink(tvc, areq);
3309 if (tvc->linkData) {
3310 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3315 ReleaseWriteLock(&tvc->lock);
3316 osi_dnlc_purgedp(tvc);
3322 ObtainWriteLock(&avc->lock, 231);
3323 osi_dnlc_remove(avc, bufp, tvc);
3325 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3327 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3330 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3331 &OutDirStatus, &tsync);
3336 } while (afs_Analyze
3337 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3338 SHARED_LOCK, NULL));
3343 ReleaseWriteLock(&avc->lock);
3347 /* we have the thing in the cache */
3348 ObtainWriteLock(&tdc->lock, 661);
3349 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3350 /* we can do it locally */
3351 code = afs_dir_Delete(tdc, bufp);
3353 ZapDCE(tdc); /* surprise error -- invalid value */
3357 ReleaseWriteLock(&tdc->lock);
3358 afs_PutDCache(tdc); /* drop ref count */
3360 avc->f.states &= ~CUnique; /* For the dfs xlator */
3361 ReleaseWriteLock(&avc->lock);
3364 if (sysState.allocked)
3365 osi_FreeLargeSpace(bufp);
3370 * VIOC_GETCELLSTATUS (35) - Get cell status info
3374 * \param[in] ain The cell you want status information on
3375 * \param[out] aout cell state (as a struct)
3377 * \retval EIO Error if the afs daemon hasn't started yet
3378 * \retval ENOENT Error if the cell doesn't exist
3380 * \post Returns the state of the cell as defined in a struct cell
3382 DECL_PIOCTL(PGetCellStatus)
3388 AFS_STATCNT(PGetCellStatus);
3389 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3390 return EIO; /* Inappropriate ioctl for device */
3392 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3395 tcell = afs_GetCellByName(cellName, READ_LOCK);
3398 temp = tcell->states;
3399 afs_PutCell(tcell, READ_LOCK);
3401 return afs_pd_putInt(aout, temp);
3405 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3410 * The cell you want to set information about, and the values you
3415 * \retval EIO Error if the afs daemon hasn't started yet
3416 * \retval EACCES Error if the user doesn't have super-user credentials
3419 * Set the state of the cell in a defined struct cell, based on
3420 * whether or not SetUID is allowed
3422 DECL_PIOCTL(PSetCellStatus)
3426 afs_int32 flags0, flags1;
3428 if (!afs_osi_suser(*acred))
3430 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3431 return EIO; /* Inappropriate ioctl for device */
3433 if (afs_pd_getInt(ain, &flags0) != 0)
3435 if (afs_pd_getInt(ain, &flags1) != 0)
3437 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3440 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3443 if (flags0 & CNoSUID)
3444 tcell->states |= CNoSUID;
3446 tcell->states &= ~CNoSUID;
3447 afs_PutCell(tcell, WRITE_LOCK);
3452 FlushVolumeData(struct VenusFid *afid, afs_ucred_t * acred)
3460 afs_int32 volume = 0;
3461 struct afs_q *tq, *uq;
3462 #ifdef AFS_DARWIN80_ENV
3469 volume = afid->Fid.Volume; /* who to zap */
3474 * Clear stat'd flag from all vnodes from this volume; this will
3475 * invalidate all the vcaches associated with the volume.
3478 ObtainReadLock(&afs_xvcache);
3479 for (i = (afid ? VCHashV(afid) : 0); i < VCSIZE; i = (afid ? VCSIZE : i+1)) {
3480 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3483 if (all || (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell)) {
3484 if (tvc->f.states & CVInit) {
3485 ReleaseReadLock(&afs_xvcache);
3486 afs_osi_Sleep(&tvc->f.states);
3489 #ifdef AFS_DARWIN80_ENV
3490 if (tvc->f.states & CDeadVnode) {
3491 ReleaseReadLock(&afs_xvcache);
3492 afs_osi_Sleep(&tvc->f.states);
3498 if (vnode_ref(vp)) {
3507 ReleaseReadLock(&afs_xvcache);
3508 #ifdef AFS_BOZONLOCK_ENV
3509 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3511 ObtainWriteLock(&tvc->lock, 232);
3512 afs_ResetVCache(tvc, acred, 1);
3513 ReleaseWriteLock(&tvc->lock);
3514 #ifdef AFS_BOZONLOCK_ENV
3515 afs_BozonUnlock(&tvc->pvnLock, tvc);
3517 #ifdef AFS_DARWIN80_ENV
3518 vnode_put(AFSTOV(tvc));
3520 ObtainReadLock(&afs_xvcache);
3522 /* our tvc ptr is still good until now */
3527 ReleaseReadLock(&afs_xvcache);
3530 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3531 for (i = 0; i < afs_cacheFiles; i++) {
3532 if (!(afs_indexFlags[i] & IFEverUsed))
3533 continue; /* never had any data */
3534 tdc = afs_GetValidDSlot(i);
3538 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3539 ReleaseReadLock(&tdc->tlock);
3540 if (all || (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell)) {
3541 if (!(afs_indexFlags[i] & (IFDataMod | IFFree | IFDiscarded))) {
3542 /* if the file is modified, but has a ref cnt of only 1,
3543 * then someone probably has the file open and is writing
3544 * into it. Better to skip flushing such a file, it will be
3545 * brought back immediately on the next write anyway.
3547 * Skip if already freed.
3549 * If we *must* flush, then this code has to be rearranged
3550 * to call afs_storeAllSegments() first */
3551 afs_FlushDCache(tdc);
3555 ReleaseReadLock(&tdc->tlock);
3557 afs_PutDCache(tdc); /* bumped by getdslot */
3559 ReleaseWriteLock(&afs_xdcache);
3561 ObtainReadLock(&afs_xvolume);
3562 for (i = 0; i < NVOLS; i++) {
3563 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3564 if (all || tv->volume == volume) {
3565 afs_ResetVolumeInfo(tv);
3570 ReleaseReadLock(&afs_xvolume);
3572 /* probably, a user is doing this, probably, because things are screwed up.
3573 * maybe it's the dnlc's fault? */
3578 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3582 * \param[in] ain not in use (args in avc)
3583 * \param[out] aout not in use
3585 * \retval EINVAL Error if some of the standard args aren't set
3586 * \retval EIO Error if the afs daemon hasn't started yet
3589 * Flush all cached contents of a volume. Exactly what stays and what
3590 * goes depends on the platform.
3593 * Does not flush a file that a user has open and is using, because
3594 * it will be re-created on next write. Also purges the dnlc,
3595 * because things are screwed up.
3597 DECL_PIOCTL(PFlushVolumeData)
3599 AFS_STATCNT(PFlushVolumeData);
3602 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3603 return EIO; /* Inappropriate ioctl for device */
3605 FlushVolumeData(&avc->f.fid, *acred);
3610 * VIOC_FLUSHALL (14) - Flush whole volume's data for all volumes
3614 * \param[in] ain not in use
3615 * \param[out] aout not in use
3617 * \retval EINVAL Error if some of the standard args aren't set
3618 * \retval EIO Error if the afs daemon hasn't started yet
3621 * Flush all cached contents. Exactly what stays and what
3622 * goes depends on the platform.
3625 * Does not flush a file that a user has open and is using, because
3626 * it will be re-created on next write. Also purges the dnlc,
3627 * because things are screwed up.
3629 DECL_PIOCTL(PFlushAllVolumeData)
3631 AFS_STATCNT(PFlushAllVolumeData);
3633 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3634 return EIO; /* Inappropriate ioctl for device */
3636 FlushVolumeData(NULL, *acred);
3641 * VIOCGETVCXSTATUS (41) - gets vnode x status
3646 * not in use (avc used)
3648 * vcxstat: the file id, the data version, any lock, the parent vnode,
3649 * the parent unique id, the trunc position, the callback, cbExpires,
3650 * what access is being made, what files are open,
3651 * any users executing/writing, the flock count, the states,
3655 * Error if some of the initial default arguments aren't set
3657 * Error if access to check the mode bits is denied
3660 * gets stats for the vnode, a struct listed in vcxstat
3662 DECL_PIOCTL(PGetVnodeXStatus)
3665 struct vcxstat stat;
3668 /* AFS_STATCNT(PGetVnodeXStatus); */
3671 code = afs_VerifyVCache(avc, areq);
3674 if (vType(avc) == VDIR)
3675 mode = PRSFS_LOOKUP;
3678 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3681 memset(&stat, 0, sizeof(struct vcxstat));
3682 stat.fid = avc->f.fid;
3683 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3684 stat.lock = avc->lock;
3685 stat.parentVnode = avc->f.parent.vnode;
3686 stat.parentUnique = avc->f.parent.unique;
3687 hset(stat.flushDV, avc->flushDV);
3688 hset(stat.mapDV, avc->mapDV);
3689 stat.truncPos = avc->f.truncPos;
3690 { /* just grab the first two - won't break anything... */
3691 struct axscache *ac;
3693 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3694 stat.randomUid[i] = ac->uid;
3695 stat.randomAccess[i] = ac->axess;
3698 stat.callback = afs_data_pointer_to_int32(avc->callback);
3699 stat.cbExpires = avc->cbExpires;
3700 stat.anyAccess = avc->f.anyAccess;
3701 stat.opens = avc->opens;
3702 stat.execsOrWriters = avc->execsOrWriters;
3703 stat.flockCount = avc->flockCount;
3704 stat.mvstat = avc->mvstat;
3705 stat.states = avc->f.states;
3706 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3710 DECL_PIOCTL(PGetVnodeXStatus2)
3713 struct vcxstat2 stat;
3718 code = afs_VerifyVCache(avc, areq);
3721 if (vType(avc) == VDIR)
3722 mode = PRSFS_LOOKUP;
3725 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3728 memset(&stat, 0, sizeof(struct vcxstat2));
3730 stat.cbExpires = avc->cbExpires;
3731 stat.anyAccess = avc->f.anyAccess;
3732 stat.mvstat = avc->mvstat;
3733 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3735 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3740 * VIOC_AFS_SYSNAME (38) - Change @sys value
3744 * \param[in] ain new value for @sys
3745 * \param[out] aout count, entry, list (debug values?)
3748 * Error if afsd isn't running, the new sysname is too large,
3749 * the new sysname causes issues (starts with a . or ..),
3750 * there is no PAG set in the credentials, or the user of a PAG
3753 * Error if the user doesn't have super-user credentials
3756 * Set the value of @sys if these things work: if the input isn't
3757 * too long or if input doesn't start with . or ..
3760 * We require root for local sysname changes, but not for remote
3761 * (since we don't really believe remote uids anyway)
3762 * outname[] shouldn't really be needed- this is left as an
3763 * exercise for the reader.
3765 DECL_PIOCTL(PSetSysName)
3767 char *inname = NULL;
3768 char outname[MAXSYSNAME];
3769 afs_int32 setsysname;
3771 struct afs_exporter *exporter;
3772 struct unixuser *au;
3773 afs_int32 pag, error;
3774 int t, count, num = 0, allpags = 0;
3776 struct afs_pdata validate;
3778 AFS_STATCNT(PSetSysName);
3779 if (!afs_globalVFS) {
3780 /* Afsd is NOT running; disable it */
3781 #if defined(KERNEL_HAVE_UERROR)
3782 return (setuerror(EINVAL), EINVAL);
3787 if (afs_pd_getInt(ain, &setsysname) != 0)
3789 if (setsysname & 0x8000) {
3791 setsysname &= ~0x8000;
3796 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3799 for (count = 0; count < setsysname; count++) {
3800 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3803 if (t >= MAXSYSNAME || t <= 0)
3805 /* check for names that can shoot us in the foot */
3806 if (inname[0] == '.' && (inname[1] == 0
3807 || (inname[1] == '.' && inname[2] == 0)))
3810 /* args ok, so go back to the beginning of that section */
3812 if (afs_pd_getStringPtr(ain, &inname) != 0)
3816 if (afs_rmtsys_enable && (afs_cr_gid(*acred) == RMTUSER_REQ ||
3817 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV)) { /* Handles all exporters */
3818 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3821 pag = PagInCred(*acred);
3823 return EINVAL; /* Better than panicing */
3825 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3826 return EINVAL; /* Better than panicing */
3828 if (!(exporter = au->exporter)) {
3829 afs_PutUser(au, READ_LOCK);
3830 return EINVAL; /* Better than panicing */
3832 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3835 if (error == ENODEV)
3836 foundname = 0; /* sysname not set yet! */
3838 afs_PutUser(au, READ_LOCK);
3843 strcpy(outname, sysnamelist[0]);
3845 afs_PutUser(au, READ_LOCK);
3849 /* Not xlating, so local case */
3851 osi_Panic("PSetSysName: !afs_sysname\n");
3852 if (!setsysname) { /* user just wants the info */
3853 strcpy(outname, afs_sysname);
3854 foundname = afs_sysnamecount;
3855 sysnamelist = afs_sysnamelist;
3856 } else { /* Local guy; only root can change sysname */
3857 if (!afs_osi_suser(*acred))
3860 /* allpags makes no sense for local use */
3864 /* clear @sys entries from the dnlc, once afs_lookup can
3865 * do lookups of @sys entries and thinks it can trust them */
3866 /* privs ok, store the entry, ... */
3868 if (strlen(inname) >= MAXSYSNAME-1)
3870 strcpy(afs_sysname, inname);
3872 if (setsysname > 1) { /* ... or list */
3873 for (count = 1; count < setsysname; ++count) {
3874 if (!afs_sysnamelist[count])
3876 ("PSetSysName: no afs_sysnamelist entry to write\n");
3877 if (afs_pd_getString(ain, afs_sysnamelist[count],
3882 afs_sysnamecount = setsysname;
3887 if (afs_pd_putInt(aout, foundname) != 0)
3890 if (afs_pd_putString(aout, outname) != 0)
3892 for (count = 1; count < foundname; ++count) { /* ... or list. */
3893 if (!sysnamelist[count])
3895 ("PSetSysName: no afs_sysnamelist entry to read\n");
3896 t = strlen(sysnamelist[count]);
3897 if (t >= MAXSYSNAME)
3898 osi_Panic("PSetSysName: sysname entry garbled\n");
3899 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3907 /* sequential search through the list of touched cells is not a good
3908 * long-term solution here. For small n, though, it should be just
3909 * fine. Should consider special-casing the local cell for large n.
3910 * Likewise for PSetSPrefs.
3912 * s - number of ids in array l[] -- NOT index of last id
3913 * l - array of cell ids which have volumes that need to be sorted
3914 * vlonly - sort vl servers or file servers?
3917 ReSortCells_cb(struct cell *cell, void *arg)
3919 afs_int32 *p = (afs_int32 *) arg;
3920 afs_int32 *l = p + 1;
3923 for (i = 0; i < s; i++) {
3924 if (l[i] == cell->cellNum) {
3925 ObtainWriteLock(&cell->lock, 690);
3926 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3927 ReleaseWriteLock(&cell->lock);
3935 ReSortCells(int s, afs_int32 * l, int vlonly)
3943 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3944 osi_Assert(p != NULL);
3946 memcpy(p + 1, l, s * sizeof(afs_int32));
3947 afs_TraverseCells(&ReSortCells_cb, p);
3948 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3952 ObtainReadLock(&afs_xvolume);
3953 for (i = 0; i < NVOLS; i++) {
3954 for (j = afs_volumes[i]; j; j = j->next) {
3955 for (k = 0; k < s; k++)
3956 if (j->cell == l[k]) {
3957 ObtainWriteLock(&j->lock, 233);
3958 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3959 ReleaseWriteLock(&j->lock);
3964 ReleaseReadLock(&afs_xvolume);
3968 static int debugsetsp = 0;
3970 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3973 int i, j, k, matches, touchedSize;
3974 struct server *srvr = NULL;
3975 afs_int32 touched[34];
3979 for (k = 0; k < num; sp++, k++) {
3981 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3984 ObtainReadLock(&afs_xserver);
3986 i = SHash(sp->host.s_addr);
3987 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3988 if (sa->sa_ip == sp->host.s_addr) {
3990 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3991 || (sa->sa_portal == AFS_FSPORT);
3992 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3999 if (sa && matches) { /* found one! */
4001 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
4003 sa->sa_iprank = sp->rank + afs_randomMod15();
4004 afs_SortOneServer(sa->server);
4007 /* if we don't know yet what cell it's in, this is moot */
4008 for (j = touchedSize - 1;
4009 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
4010 /* is it in our list of touched cells ? */ ;
4011 if (j < 0) { /* no, it's not */
4012 touched[touchedSize++] = srvr->cell->cellNum;
4013 if (touchedSize >= 32) { /* watch for ovrflow */
4014 ReleaseReadLock(&afs_xserver);
4015 ReSortCells(touchedSize, touched, vlonly);
4017 ObtainReadLock(&afs_xserver);
4023 ReleaseReadLock(&afs_xserver);
4024 /* if we didn't find one, start to create one. */
4025 /* Note that it doesn't have a cell yet... */
4027 afs_uint32 temp = sp->host.s_addr;
4029 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
4030 WRITE_LOCK, (afsUUID *) 0, 0, NULL);
4031 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
4032 afs_PutServer(srvr, WRITE_LOCK);
4034 } /* for all cited preferences */
4036 ReSortCells(touchedSize, touched, vlonly);
4041 * VIOC_SETPREFS (46) - Set server ranks
4043 * \param[in] ain the sprefs value you want the sprefs to be set to
4044 * \param[out] aout not in use
4047 * Error if the afs daemon hasn't started yet
4049 * Error if the user doesn't have super-user credentials
4051 * Error if the struct setsprefs is too large or if it multiplied
4052 * by the number of servers is too large
4054 * \post set the sprefs using the afs_setsprefs() function
4056 DECL_PIOCTL(PSetSPrefs)
4058 struct setspref *ssp;
4062 AFS_STATCNT(PSetSPrefs);
4064 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4065 return EIO; /* Inappropriate ioctl for device */
4067 if (!afs_osi_suser(*acred))
4070 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4071 * of arrays. But, i'm not quite brave enough to change it yet. */
4073 ainSize = ain->remaining;
4075 if (ainSize < sizeof(struct setspref))
4078 ssp = (struct setspref *)ainPtr;
4079 if (ainSize < (sizeof(struct setspref)
4080 + sizeof(struct spref) * (ssp->num_servers-1)))
4083 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4084 (ssp->flags & DBservers));
4089 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4091 * \param[in] ain the server preferences to be set
4092 * \param[out] aout not in use
4094 * \retval EIO Error if the afs daemon hasn't started yet
4095 * \retval EACCES Error if the user doesn't have super-user credentials
4097 * \post set the server preferences, calling a function
4099 * \notes this may only be performed by the local root user.
4101 DECL_PIOCTL(PSetSPrefs33)
4103 AFS_STATCNT(PSetSPrefs);
4104 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4105 return EIO; /* Inappropriate ioctl for device */
4108 if (!afs_osi_suser(*acred))
4111 afs_setsprefs((struct spref *)afs_pd_where(ain),
4112 afs_pd_remaining(ain) / sizeof(struct spref),
4118 * VIOC_GETSPREFS (43) - Get server ranks
4122 * \param[in] ain the server preferences to get
4123 * \param[out] aout the server preferences information
4125 * \retval EIO Error if the afs daemon hasn't started yet
4126 * \retval ENOENT Error if the sprefrequest is too large
4128 * \post Get the sprefs
4131 * in the hash table of server structs, all servers with the same
4132 * IP address; will be on the same overflow chain; This could be
4133 * sped slightly in some circumstances by having it cache the
4134 * immediately previous slot in the hash table and some
4135 * supporting information; Only reports file servers now.
4137 DECL_PIOCTL(PGetSPrefs)
4139 struct sprefrequest spin; /* input */
4140 struct sprefinfo *spout; /* output */
4141 struct spref *srvout; /* one output component */
4142 int i, j; /* counters for hash table traversal */
4143 struct server *srvr; /* one of CM's server structs */
4145 int vlonly; /* just return vlservers ? */
4148 AFS_STATCNT(PGetSPrefs);
4149 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4150 return EIO; /* Inappropriate ioctl for device */
4152 /* Work out from the size whether we've got a new, or old, style pioctl */
4153 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4154 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4159 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4161 vlonly = (spin.flags & DBservers);
4164 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4165 * quite brave enough to tackle it yet ...
4168 /* struct sprefinfo includes 1 server struct... that size gets added
4169 * in during the loop that follows.
4171 spout = afs_pd_inline(aout,
4172 sizeof(struct sprefinfo) - sizeof(struct spref));
4173 spout->next_offset = spin.offset;
4174 spout->num_servers = 0;
4175 srvout = spout->servers;
4177 ObtainReadLock(&afs_xserver);
4178 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4179 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4180 if (spin.offset > (unsigned short)i) {
4181 continue; /* catch up to where we left off */
4183 spout->next_offset++;
4186 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4187 || (sa->sa_portal == AFS_FSPORT);
4189 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4190 /* only report ranks for vl servers */
4194 /* Check we've actually got the space we're about to use */
4195 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4196 ReleaseReadLock(&afs_xserver); /* no more room! */
4200 srvout->host.s_addr = sa->sa_ip;
4201 srvout->rank = sa->sa_iprank;
4202 spout->num_servers++;
4206 ReleaseReadLock(&afs_xserver);
4208 spout->next_offset = 0; /* start over from the beginning next time */
4213 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4214 int afs_NFSRootOnly = 1;
4216 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4221 * an integer containing the desired exportee flags
4223 * an integer containing the current exporter flags
4225 * \retval ENODEV Error if the exporter doesn't exist
4226 * \retval EACCES Error if the user doesn't have super-user credentials
4229 * Changes the state of various values to reflect the change
4230 * of the export values between nfs and afs.
4232 * \notes Legacy code obtained from IBM.
4234 DECL_PIOCTL(PExportAfs)
4236 afs_int32 export, newint = 0;
4237 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4238 afs_int32 rempags = 0, pagcb = 0;
4239 struct afs_exporter *exporter;
4241 AFS_STATCNT(PExportAfs);
4242 if (afs_pd_getInt(ain, &handleValue) != 0)
4244 type = handleValue >> 24;
4249 exporter = exporter_find(type);
4251 export = handleValue & 3;
4252 changestate = handleValue & 0xfff;
4253 smounts = (handleValue >> 2) & 3;
4254 pwsync = (handleValue >> 4) & 3;
4255 convmode = (handleValue >> 6) & 3;
4256 rempags = (handleValue >> 8) & 3;
4257 pagcb = (handleValue >> 10) & 3;
4259 changestate = (handleValue >> 16) & 0x1;
4260 convmode = (handleValue >> 16) & 0x2;
4261 pwsync = (handleValue >> 16) & 0x4;
4262 smounts = (handleValue >> 16) & 0x8;
4263 export = handleValue & 0xff;
4266 /* Failed finding desired exporter; */
4270 handleValue = exporter->exp_states;
4271 if (afs_pd_putInt(aout, handleValue) != 0)
4274 if (!afs_osi_suser(*acred))
4275 return EACCES; /* Only superuser can do this */
4279 exporter->exp_states |= EXP_EXPORTED;
4281 exporter->exp_states &= ~EXP_EXPORTED;
4285 exporter->exp_states |= EXP_UNIXMODE;
4287 exporter->exp_states &= ~EXP_UNIXMODE;
4291 exporter->exp_states |= EXP_PWSYNC;
4293 exporter->exp_states &= ~EXP_PWSYNC;
4297 afs_NFSRootOnly = 0;
4298 exporter->exp_states |= EXP_SUBMOUNTS;
4300 afs_NFSRootOnly = 1;
4301 exporter->exp_states &= ~EXP_SUBMOUNTS;
4306 exporter->exp_states |= EXP_CLIPAGS;
4308 exporter->exp_states &= ~EXP_CLIPAGS;
4312 exporter->exp_states |= EXP_CALLBACK;
4314 exporter->exp_states &= ~EXP_CALLBACK;
4316 handleValue = exporter->exp_states;
4317 if (afs_pd_putInt(aout, handleValue) != 0)
4321 exporter->exp_states |= EXP_EXPORTED;
4323 exporter->exp_states &= ~EXP_EXPORTED;
4325 exporter->exp_states |= EXP_UNIXMODE;
4327 exporter->exp_states &= ~EXP_UNIXMODE;
4329 exporter->exp_states |= EXP_PWSYNC;
4331 exporter->exp_states &= ~EXP_PWSYNC;
4333 afs_NFSRootOnly = 0;
4334 exporter->exp_states |= EXP_SUBMOUNTS;
4336 afs_NFSRootOnly = 1;
4337 exporter->exp_states &= ~EXP_SUBMOUNTS;
4346 * VIOC_GAG (44) - Silence Cache Manager
4350 * \param[in] ain the flags to either gag or de-gag the cache manager
4351 * \param[out] aout not in use
4353 * \retval EACCES Error if the user doesn't have super-user credentials
4355 * \post set the gag flags, then show these flags
4359 struct gaginfo *gagflags;
4361 if (!afs_osi_suser(*acred))
4364 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4365 if (gagflags == NULL)
4367 afs_showflags = gagflags->showflags;
4373 * VIOC_TWIDDLE (45) - Adjust RX knobs
4377 * \param[in] ain the previous settings of the 'knobs'
4378 * \param[out] aout not in use
4380 * \retval EACCES Error if the user doesn't have super-user credentials
4382 * \post build out the struct rxp, from a struct rx
4384 DECL_PIOCTL(PTwiddleRx)
4386 struct rxparams *rxp;
4388 if (!afs_osi_suser(*acred))
4391 rxp = afs_pd_inline(ain, sizeof(*rxp));
4395 if (rxp->rx_initReceiveWindow)
4396 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4397 if (rxp->rx_maxReceiveWindow)
4398 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4399 if (rxp->rx_initSendWindow)
4400 rx_initSendWindow = rxp->rx_initSendWindow;
4401 if (rxp->rx_maxSendWindow)
4402 rx_maxSendWindow = rxp->rx_maxSendWindow;
4403 if (rxp->rxi_nSendFrags)
4404 rxi_nSendFrags = rxp->rxi_nSendFrags;
4405 if (rxp->rxi_nRecvFrags)
4406 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4407 if (rxp->rxi_OrphanFragSize)
4408 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4409 if (rxp->rx_maxReceiveSize) {
4410 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4411 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4413 if (rxp->rx_MyMaxSendSize)
4414 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4420 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4424 * \param[in] ain not in use
4425 * \param[out] aout initial cache manager params
4428 * Error if the initial parameters are bigger than some PIGGYSIZE
4430 * \post return the initial cache manager parameters
4432 DECL_PIOCTL(PGetInitParams)
4434 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4437 return afs_pd_putBytes(aout, &cm_initParams,
4438 sizeof(struct cm_initparams));
4441 #ifdef AFS_SGI65_ENV
4442 /* They took crget() from us, so fake it. */
4447 cr = crdup(get_current_cred());
4448 memset(cr, 0, sizeof(cred_t));
4449 #if CELL || CELL_PREPARE
4457 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4461 * \param[in] ain not in use
4462 * \param[out] aout value of cryptall
4464 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4466 DECL_PIOCTL(PGetRxkcrypt)
4468 return afs_pd_putInt(aout, cryptall);
4472 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4476 * \param[in] ain the argument whether or not things should be encrypted
4477 * \param[out] aout not in use
4480 * Error if the user doesn't have super-user credentials
4482 * Error if the input is too big, or if the input is outside the
4483 * bounds of what it can be set to
4485 * \post set whether or not things should be encrypted
4488 * may need to be modified at a later date to take into account
4489 * other values for cryptall (beyond true or false)
4491 DECL_PIOCTL(PSetRxkcrypt)
4495 if (!afs_osi_suser(*acred))
4497 if (afs_pd_getInt(ain, &tmpval) != 0)
4499 /* if new mappings added later this will need to be changed */
4500 if (tmpval != 0 && tmpval != 1)
4506 #ifdef AFS_NEED_CLIENTCONTEXT
4508 * Create new credentials to correspond to a remote user with given
4509 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4510 * provide pioctl (and other) services to foreign clients (i.e. nfs
4511 * clients) by using this call to `become' the client.
4514 #define PIOCTL_HEADER 6
4516 HandleClientContext(struct afs_ioctl *ablob, int *com,
4517 afs_ucred_t **acred, afs_ucred_t *credp)
4520 afs_uint32 hostaddr;
4521 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4522 struct afs_exporter *exporter, *outexporter;
4523 afs_ucred_t *newcred;
4524 struct unixuser *au;
4525 afs_uint32 comp = *com & 0xff00;
4527 #if defined(AFS_SUN510_ENV)
4531 #if defined(AFS_SGIMP_ENV)
4532 osi_Assert(ISAFS_GLOCK());
4534 AFS_STATCNT(HandleClientContext);
4535 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4536 /* Must at least include the PIOCTL_HEADER header words
4537 * required by the protocol */
4538 return EINVAL; /* Too small to be good */
4540 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4541 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4543 osi_FreeLargeSpace(inData);
4547 /* Extract information for remote user */
4548 hostaddr = *((afs_uint32 *) ain);
4549 ain += sizeof(hostaddr);
4550 uid = *((afs_uint32 *) ain);
4552 g0 = *((afs_uint32 *) ain);
4554 g1 = *((afs_uint32 *) ain);
4556 *com = *((afs_uint32 *) ain);
4557 ain += sizeof(afs_int32);
4558 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4561 * Of course, one must be root for most of these functions, but
4562 * we'll allow (for knfs) you to set things if the pag is 0 and
4563 * you're setting tokens or unlogging.
4566 if (!afs_osi_suser(credp)) {
4567 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4568 /* Since SGI's suser() returns explicit failure after the call.. */
4571 /* check for acceptable opcodes for normal folks, which are, so far,
4572 * get/set tokens, sysname, and unlog.
4574 if (i != 9 && i != 3 && i != 38 && i != 8) {
4575 osi_FreeLargeSpace(inData);
4580 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4581 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4582 osi_FreeLargeSpace(inData);
4585 * We map uid 0 to nobody to match the mapping that the nfs
4586 * server does and to ensure that the suser() calls in the afs
4587 * code fails for remote client roots.
4589 uid = afs_nobody; /* NFS_NOBODY == -2 */
4593 #ifdef AFS_AIX41_ENV
4596 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4597 #ifdef AFS_AIX51_ENV
4598 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4599 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4600 #elif defined(AFS_LINUX26_ENV)
4601 # ifdef AFS_LINUX26_ONEGROUP_ENV
4602 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4603 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4604 h = ((g0-0x3f00) >> 14);
4605 h = ((g1-0x3f00) >> 14) + h + h + h;
4606 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4608 afs_set_cr_group_info(newcred, groups_alloc(2));
4609 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4610 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4612 #elif defined(AFS_SUN510_ENV)
4615 crsetgroups(newcred, 2, gids);
4617 newcred->cr_groups[0] = g0;
4618 newcred->cr_groups[1] = g1;
4621 newcred->cr_ngrps = 2;
4622 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4623 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4624 newcred->cr_ngroups = 2;
4626 for (i = 2; i < NGROUPS; i++)
4627 newcred->cr_groups[i] = NOGROUP;
4630 if (!(exporter = exporter_find(exporter_type))) {
4631 /* Exporter wasn't initialized or an invalid exporter type */
4635 if (exporter->exp_states & EXP_PWSYNC) {
4636 if (uid != afs_cr_uid(credp)) {
4638 return ENOEXEC; /* XXX Find a better errno XXX */
4641 afs_set_cr_uid(newcred, uid); /* Only temporary */
4642 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4643 /* The client's pag is the only unique identifier for it */
4644 afs_set_cr_uid(newcred, pag);
4646 if (!code && *com == PSETPAG) {
4647 /* Special case for 'setpag' */
4648 afs_uint32 pagvalue = genpag();
4650 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4652 * Note that we leave the 'outexporter' struct held so it won't
4655 au->exporter = outexporter;
4656 if (ablob->out_size >= 4) {
4657 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4660 afs_PutUser(au, WRITE_LOCK);
4663 return PSETPAG; /* Special return for setpag */
4665 EXP_RELE(outexporter);
4668 *com = (*com) | comp;
4671 #endif /* AFS_NEED_CLIENTCONTEXT */
4675 * VIOC_GETCPREFS (50) - Get client interface
4679 * \param[in] ain sprefrequest input
4680 * \param[out] aout spref information
4682 * \retval EIO Error if the afs daemon hasn't started yet
4683 * \retval EINVAL Error if some of the standard args aren't set
4686 * get all interface addresses and other information of the client
4689 DECL_PIOCTL(PGetCPrefs)
4691 struct sprefrequest *spin; /* input */
4692 struct sprefinfo *spout; /* output */
4693 struct spref *srvout; /* one output component */
4697 AFS_STATCNT(PGetCPrefs);
4698 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4699 return EIO; /* Inappropriate ioctl for device */
4701 spin = afs_pd_inline(ain, sizeof(*spin));
4705 /* Output spout relies on writing past the end of arrays. It's horrible,
4706 * but I'm not quite brave enough to tackle it yet */
4707 spout = (struct sprefinfo *)aout->ptr;
4709 maxNumber = spin->num_servers; /* max addrs this time */
4710 srvout = spout->servers;
4712 ObtainReadLock(&afs_xinterface);
4714 /* copy out the client interface information from the
4715 * kernel data structure "interface" to the output buffer
4717 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4718 && (j < maxNumber); i++, j++, srvout++)
4719 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4721 spout->num_servers = j;
4722 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4724 if (i >= afs_cb_interface.numberOfInterfaces)
4725 spout->next_offset = 0; /* start from beginning again */
4727 spout->next_offset = spin->offset + j;
4729 ReleaseReadLock(&afs_xinterface);
4734 * VIOC_SETCPREFS (51) - Set client interface
4738 * \param[in] ain the interfaces you want set
4739 * \param[out] aout not in use
4741 * \retval EIO Error if the afs daemon hasn't started yet
4742 * \retval EINVAL Error if the input is too large for the struct
4743 * \retval ENOMEM Error if there are too many servers
4745 * \post set the callbak interfaces addresses to those of the hosts
4747 DECL_PIOCTL(PSetCPrefs)
4751 struct setspref *sin;
4754 AFS_STATCNT(PSetCPrefs);
4755 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4756 return EIO; /* Inappropriate ioctl for device */
4758 /* Yuck. Input to this function relies on reading past the end of
4759 * structures. Bodge it for now.
4762 ainSize = ain->remaining;
4764 sin = (struct setspref *)ainPtr;
4766 if (ainSize < sizeof(struct setspref))
4768 #if 0 /* num_servers is unsigned */
4769 if (sin->num_servers < 0)
4772 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4775 ObtainWriteLock(&afs_xinterface, 412);
4776 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4777 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4778 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4780 ReleaseWriteLock(&afs_xinterface);
4785 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4790 * the last part of a path to a mount point, which tells us what to flush
4795 * Error if some of the initial arguments aren't set
4797 * Error if the initial argument for the mount point isn't a directory
4799 * Error if the dcache entry isn't set
4802 * remove all of the mount data from the dcache regarding a
4803 * certain mount point
4805 DECL_PIOCTL(PFlushMount)
4810 struct VenusFid tfid;
4813 struct sysname_info sysState;
4814 afs_size_t offset, len;
4816 AFS_STATCNT(PFlushMount);
4820 if (afs_pd_getStringPtr(ain, &mount) != 0)
4823 code = afs_VerifyVCache(avc, areq);
4826 if (vType(avc) != VDIR) {
4829 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4832 Check_AtSys(avc, mount, &sysState, areq);
4833 ObtainReadLock(&tdc->lock);
4835 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4836 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4837 ReleaseReadLock(&tdc->lock);
4838 afs_PutDCache(tdc); /* we're done with the data */
4839 bufp = sysState.name;
4843 tfid.Cell = avc->f.fid.Cell;
4844 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4845 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4846 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4848 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4854 if (tvc->mvstat != 1) {
4859 #ifdef AFS_BOZONLOCK_ENV
4860 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4862 ObtainWriteLock(&tvc->lock, 649);
4863 ObtainWriteLock(&afs_xcbhash, 650);
4864 afs_DequeueCallback(tvc);
4865 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4866 ReleaseWriteLock(&afs_xcbhash);
4867 /* now find the disk cache entries */
4868 afs_TryToSmush(tvc, *acred, 1);
4869 osi_dnlc_purgedp(tvc);
4870 if (tvc->linkData && !(tvc->f.states & CCore)) {
4871 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4872 tvc->linkData = NULL;
4874 ReleaseWriteLock(&tvc->lock);
4875 #ifdef AFS_BOZONLOCK_ENV
4876 afs_BozonUnlock(&tvc->pvnLock, tvc);
4880 if (sysState.allocked)
4881 osi_FreeLargeSpace(bufp);
4886 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4890 * \param[in] ain the flags that control which stats to use
4891 * \param[out] aout not in use
4893 * \retval EACCES Error if the user doesn't have super-user credentials
4894 * \retval EINVAL Error if the flag input is too long
4897 * either enable process RPCStats, disable process RPCStats,
4898 * or clear the process RPCStats
4900 DECL_PIOCTL(PRxStatProc)
4904 if (!afs_osi_suser(*acred))
4907 if (afs_pd_getInt(ain, &flags) != 0)
4910 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4913 if (flags & AFSCALL_RXSTATS_ENABLE) {
4914 rx_enableProcessRPCStats();
4916 if (flags & AFSCALL_RXSTATS_DISABLE) {
4917 rx_disableProcessRPCStats();
4919 if (flags & AFSCALL_RXSTATS_CLEAR) {
4920 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4927 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4931 * \param[in] ain the flags that control which statistics to use
4932 * \param[out] aout not in use
4934 * \retval EACCES Error if the user doesn't have super-user credentials
4935 * \retval EINVAL Error if the flag input is too long
4938 * either enable peer RPCStatws, disable peer RPCStats,
4939 * or clear the peer RPCStats
4941 DECL_PIOCTL(PRxStatPeer)
4945 if (!afs_osi_suser(*acred))
4948 if (afs_pd_getInt(ain, &flags) != 0)
4951 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4954 if (flags & AFSCALL_RXSTATS_ENABLE) {
4955 rx_enablePeerRPCStats();
4957 if (flags & AFSCALL_RXSTATS_DISABLE) {
4958 rx_disablePeerRPCStats();
4960 if (flags & AFSCALL_RXSTATS_CLEAR) {
4961 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4966 DECL_PIOCTL(PPrefetchFromTape)
4970 struct afs_conn *tc;
4971 struct rx_call *tcall;
4972 struct AFSVolSync tsync;
4973 struct AFSFetchStatus OutStatus;
4974 struct AFSCallBack CallBack;
4975 struct VenusFid tfid;
4978 struct rx_connection *rxconn;
4980 AFS_STATCNT(PPrefetchFromTape);
4984 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4986 Fid = &avc->f.fid.Fid;
4988 tfid.Cell = avc->f.fid.Cell;
4989 tfid.Fid.Volume = Fid->Volume;
4990 tfid.Fid.Vnode = Fid->Vnode;
4991 tfid.Fid.Unique = Fid->Unique;
4993 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4995 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4996 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4999 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
5000 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
5003 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5007 tcall = rx_NewCall(rxconn);
5009 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
5012 rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
5014 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
5016 code = rx_EndCall(tcall, code);
5020 } while (afs_Analyze
5021 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
5022 SHARED_LOCK, NULL));
5023 /* This call is done only to have the callback things handled correctly */
5024 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
5030 return afs_pd_putInt(aout, outval);
5036 struct afs_conn *tc;
5038 struct FsCmdInputs *Inputs;
5039 struct FsCmdOutputs *Outputs;
5040 struct VenusFid tfid;
5042 struct rx_connection *rxconn;
5047 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
5051 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
5052 if (Outputs == NULL)
5057 Fid = &avc->f.fid.Fid;
5059 tfid.Cell = avc->f.fid.Cell;
5060 tfid.Fid.Volume = Fid->Volume;
5061 tfid.Fid.Vnode = Fid->Vnode;
5062 tfid.Fid.Unique = Fid->Unique;
5064 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5065 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5066 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5070 if (Inputs->command) {
5072 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5076 RXAFS_FsCmd(rxconn, Fid, Inputs,
5077 (struct FsCmdOutputs *)aout);
5081 } while (afs_Analyze
5082 (tc, rxconn, code, &tvc->f.fid, areq,
5083 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5084 /* This call is done to have the callback things handled correctly */
5085 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5086 } else { /* just a status request, return also link data */
5088 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5089 Outputs->chars[0] = 0;
5090 if (vType(tvc) == VLNK) {
5091 ObtainWriteLock(&tvc->lock, 555);
5092 if (afs_HandleLink(tvc, areq) == 0)
5093 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5094 ReleaseWriteLock(&tvc->lock);
5103 DECL_PIOCTL(PNewUuid)
5105 /*AFS_STATCNT(PNewUuid); */
5106 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5107 return EIO; /* Inappropriate ioctl for device */
5109 if (!afs_osi_suser(*acred))
5112 ObtainWriteLock(&afs_xinterface, 555);
5113 afs_uuid_create(&afs_cb_interface.uuid);
5114 ReleaseWriteLock(&afs_xinterface);
5115 ForceAllNewConnections();
5119 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5121 DECL_PIOCTL(PSetCachingThreshold)
5123 afs_int32 getting = 1;
5124 afs_int32 setting = 1;
5125 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5127 if (afs_pd_getInt(ain, &threshold) != 0)
5133 if (setting == 0 && getting == 0)
5137 * If setting, set first, and return the value now in effect
5140 if (!afs_osi_suser(*acred))
5142 cache_bypass_threshold = threshold;
5143 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5144 /* TODO: move to separate pioctl, or enhance pioctl */
5145 if (threshold == AFS_CACHE_BYPASS_DISABLED)
5146 cache_bypass_strategy = NEVER_BYPASS_CACHE;
5147 else if (!threshold)
5148 cache_bypass_strategy = ALWAYS_BYPASS_CACHE;
5150 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5153 /* Return the current size threshold */
5155 return afs_pd_putInt(aout, cache_bypass_threshold);
5160 #endif /* defined(AFS_CACHE_BYPASS) */
5162 DECL_PIOCTL(PCallBackAddr)
5165 afs_uint32 addr, code;
5169 struct afs_conn *tc;
5171 struct unixuser *tu;
5172 struct srvAddr **addrs;
5173 struct rx_connection *rxconn;
5175 /*AFS_STATCNT(PCallBackAddr); */
5176 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5177 return EIO; /* Inappropriate ioctl for device */
5179 if (!afs_osi_suser(acred))
5182 if (afs_pd_getInt(ain, &addr) != 0)
5185 ObtainReadLock(&afs_xinterface);
5186 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5187 if (afs_cb_interface.addr_in[i] == addr)
5191 ReleaseWriteLock(&afs_xinterface);
5193 if (afs_cb_interface.addr_in[i] != addr)
5196 ObtainReadLock(&afs_xserver); /* Necessary? */
5197 ObtainReadLock(&afs_xsrvAddr);
5200 for (i = 0; i < NSERVERS; i++) {
5201 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5206 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5207 osi_Assert(addrs != NULL);
5209 for (i = 0; i < NSERVERS; i++) {
5210 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5211 if (j >= srvAddrCount)
5217 ReleaseReadLock(&afs_xsrvAddr);
5218 ReleaseReadLock(&afs_xserver);
5220 for (i = 0; i < j; i++) {
5226 /* vlserver has no callback conn */
5227 if (sa->sa_portal == AFS_VLPORT) {
5231 if (!ts->cell) /* not really an active server, anyway, it must */
5232 continue; /* have just been added by setsprefs */
5234 /* get a connection, even if host is down; bumps conn ref count */
5235 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5236 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5237 1 /*force */ , 1 /*create */ , SHARED_LOCK, 0, &rxconn);
5238 afs_PutUser(tu, SHARED_LOCK);
5242 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5243 if (sa->sa_flags & SRVADDR_ISDOWN) {
5244 rx_SetConnDeadTime(rxconn, 3);
5246 #ifdef RX_ENABLE_LOCKS
5248 #endif /* RX_ENABLE_LOCKS */
5249 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5250 #ifdef RX_ENABLE_LOCKS
5252 #endif /* RX_ENABLE_LOCKS */
5254 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5255 } /* Outer loop over addrs */
5256 #endif /* UKERNEL */
5260 DECL_PIOCTL(PDiscon)
5262 static afs_int32 mode = 1; /* Start up in 'off' */
5263 afs_int32 force = 0;
5266 struct vrequest lreq;
5268 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5269 if (!afs_osi_suser(*acred))
5273 mode = flags[0] - 1;
5275 afs_ConflictPolicy = flags[1] - 1;
5279 /* Fake InitReq support for UID override */
5280 memset(&lreq, 0, sizeof(lreq));
5281 lreq.uid = flags[3];
5282 areq = &lreq; /* override areq we got */
5286 * All of these numbers are hard coded in fs.c. If they
5287 * change here, they should change there and vice versa
5290 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5291 if (!AFS_IS_DISCONNECTED) {
5292 ObtainWriteLock(&afs_discon_lock, 999);
5293 afs_DisconGiveUpCallbacks();
5294 afs_RemoveAllConns();
5295 afs_is_disconnected = 1;
5296 afs_is_discon_rw = 1;
5297 ReleaseWriteLock(&afs_discon_lock);
5300 case 1: /* Fully connected, ("online" mode). */
5301 ObtainWriteLock(&afs_discon_lock, 998);
5304 afs_MarkAllServersUp();
5305 code = afs_ResyncDisconFiles(areq, *acred);
5308 if (code && !force) {
5309 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5310 "Please retry or use \"force\".\n");
5314 afs_DisconDiscardAll(*acred);
5316 afs_ClearAllStatdFlag();
5317 afs_is_disconnected = 0;
5318 afs_is_discon_rw = 0;
5319 afs_warnuser("\nSync succeeded. You are back online.\n");
5322 ReleaseWriteLock(&afs_discon_lock);
5334 return afs_pd_putInt(aout, mode);
5337 #define MAX_PIOCTL_TOKENS 10
5339 DECL_PIOCTL(PSetTokens2)
5342 int i, cellNum, primaryFlag;
5344 struct unixuser *tu;
5345 struct vrequest treq;
5346 struct ktc_setTokenData tokenSet;
5347 struct ktc_tokenUnion decodedToken;
5349 memset(&tokenSet, 0, sizeof(tokenSet));
5351 AFS_STATCNT(PSetTokens2);
5352 if (!afs_resourceinit_flag)
5355 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5357 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5358 afs_pd_xdrEnd(ain, &xdrs);
5362 afs_pd_xdrEnd(ain, &xdrs);
5364 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5365 * process from using up the whole of the kernel memory by allocating
5368 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5369 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5373 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5375 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5379 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5380 #if defined(AFS_LINUX26_ENV)
5381 afs_ucred_t *old_cred = *acred;
5383 if (_settok_setParentPag(acred) == 0) {
5384 #if defined(AFS_LINUX26_ENV)
5385 /* setpag() may have changed our credentials */
5389 code = afs_InitReq(&treq, *acred);
5391 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5398 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5399 /* Free any tokens that we've already got */
5400 afs_FreeTokens(&tu->tokens);
5402 /* Iterate across the set of tokens we've received, and stuff them
5403 * into this user's tokenJar
5405 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5406 xdrmem_create(&xdrs,
5407 tokenSet.tokens.tokens_val[i].token_opaque_val,
5408 tokenSet.tokens.tokens_val[i].token_opaque_len,
5411 memset(&decodedToken, 0, sizeof(decodedToken));
5412 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5420 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5421 /* This is untidy - the old token interface supported passing
5422 * the primaryFlag as part of the token interface. Current
5423 * OpenAFS userland never sets this, but it's specified as being
5424 * part of the XG interface, so we should probably still support
5425 * it. Rather than add it to our AddToken interface, just handle
5428 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5429 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5433 /* XXX - We should think more about destruction here. It's likely that
5434 * there is key material in what we're about to throw away, which
5435 * we really should zero out before giving back to the allocator */
5436 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5439 tu->states |= UHasTokens;
5440 tu->states &= ~UTokensBad;
5441 afs_SetPrimary(tu, primaryFlag);
5442 tu->tokenTime = osi_Time();
5444 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5447 afs_ResetUserConns(tu);
5448 afs_PutUser(tu, WRITE_LOCK);
5453 DECL_PIOCTL(PGetTokens2)
5455 struct cell *cell = NULL;
5456 struct unixuser *tu = NULL;
5458 char *cellName = NULL;
5463 struct ktc_setTokenData tokenSet;
5465 AFS_STATCNT(PGetTokens);
5466 if (!afs_resourceinit_flag)
5469 memset(&tokenSet, 0, sizeof(tokenSet));
5471 /* No input data - return tokens for primary cell */
5472 /* 4 octets of data is an iterator count */
5473 /* Otherwise, treat as string & return tokens for that cell name */
5475 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5476 /* Integer iterator - return tokens for the n'th cell found for user */
5477 if (afs_pd_getInt(ain, &iterator) != 0)
5479 tu = getNthCell(areq->uid, iterator);
5481 if (afs_pd_remaining(ain) > 0) {
5482 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5487 code = _settok_tokenCell(cellName, &cellNum, NULL);
5490 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5497 if (!(tu->states & UHasTokens)
5498 || !afs_HasValidTokens(tu->tokens, now)) {
5499 tu->states |= (UTokensBad | UNeedsReset);
5500 afs_PutUser(tu, READ_LOCK);
5504 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5508 cell = afs_GetCell(tu->cell, READ_LOCK);
5509 tokenSet.cell = cell->cellName;
5510 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5511 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5515 afs_pd_xdrEnd(aout, &xdrs);
5518 tokenSet.cell = NULL;
5521 afs_PutUser(tu, READ_LOCK);
5523 afs_PutCell(cell, READ_LOCK);
5524 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5529 DECL_PIOCTL(PNFSNukeCreds)
5533 struct unixuser *tu;
5535 AFS_STATCNT(PUnlog);
5536 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5537 return EIO; /* Inappropriate ioctl for device */
5539 if (afs_pd_getUint(ain, &addr) != 0)
5542 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5543 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5544 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5545 afs_PutUser(tu, SHARED_LOCK);
5548 afs_PutUser(tu, SHARED_LOCK);
5549 } else if (!afs_osi_suser(acred)) {
5553 ObtainWriteLock(&afs_xuser, 227);
5554 for (i = 0; i < NUSERS; i++) {
5555 for (tu = afs_users[i]; tu; tu = tu->next) {
5556 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5558 ReleaseWriteLock(&afs_xuser);
5560 afs_LockUser(tu, WRITE_LOCK, 367);
5562 tu->states &= ~UHasTokens;
5563 afs_FreeTokens(&tu->tokens);
5564 afs_ResetUserConns(tu);
5565 afs_PutUser(tu, WRITE_LOCK);
5566 ObtainWriteLock(&afs_xuser, 228);
5568 /* set the expire times to 0, causes
5569 * afs_GCUserData to remove this entry
5572 #endif /* UKERNEL */
5576 ReleaseWriteLock(&afs_xuser);