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 struct VenusFid afs_rootFid;
33 afs_int32 afs_waitForever = 0;
34 short afs_waitForeverCount = 0;
35 afs_int32 afs_showflags = GAGUSER | GAGCONSOLE; /* show all messages */
37 afs_int32 afs_is_disconnected;
38 afs_int32 afs_is_discon_rw;
39 /* On reconnection, turn this knob on until it finishes,
42 afs_int32 afs_in_sync = 0;
50 * A set of handy little functions for encoding and decoding
51 * pioctls without losing your marbles, or memory integrity
55 afs_pd_alloc(struct afs_pdata *apd, size_t size)
58 if (size > AFS_LRALLOCSIZ)
59 apd->ptr = osi_Alloc(size + 1);
61 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
66 apd->remaining = size;
72 afs_pd_free(struct afs_pdata *apd)
77 if (apd->remaining > AFS_LRALLOCSIZ)
78 osi_Free(apd->ptr, apd->remaining + 1);
80 osi_FreeLargeSpace(apd->ptr);
87 afs_pd_where(struct afs_pdata *apd)
89 return apd ? apd->ptr : NULL;
93 afs_pd_remaining(struct afs_pdata *apd)
95 return apd ? apd->remaining : 0;
99 afs_pd_skip(struct afs_pdata *apd, size_t skip)
101 if (apd == NULL || apd->remaining < skip)
103 apd->remaining -= skip;
110 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
112 if (apd == NULL || apd->remaining < bytes)
114 apd->remaining -= bytes;
115 memcpy(dest, apd->ptr, bytes);
121 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
123 return afs_pd_getBytes(apd, val, sizeof(*val));
127 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
129 return afs_pd_getBytes(apd, val, sizeof(*val));
133 afs_pd_inline(struct afs_pdata *apd, size_t bytes)
137 if (apd == NULL || apd->remaining < bytes)
142 apd->remaining -= bytes;
149 afs_pd_xdrStart(struct afs_pdata *apd, XDR *xdrs, enum xdr_op op) {
150 xdrmem_create(xdrs, apd->ptr, apd->remaining, op);
154 afs_pd_xdrEnd(struct afs_pdata *apd, XDR *xdrs) {
157 pos = xdr_getpos(xdrs);
159 apd->remaining -= pos;
166 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
170 if (apd == NULL || apd->remaining <= 0)
172 len = strlen(apd->ptr) + 1;
175 memcpy(str, apd->ptr, len);
177 apd->remaining -= len;
182 afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
186 if (apd == NULL || apd->remaining <= 0)
188 len = strlen(apd->ptr) + 1;
191 apd->remaining -= len;
196 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
198 if (apd == NULL || apd->remaining < len)
200 memcpy(apd->ptr, bytes, len);
202 apd->remaining -= len;
207 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
209 return afs_pd_putBytes(apd, &val, sizeof(val));
213 afs_pd_putString(struct afs_pdata *apd, char *str) {
215 /* Add 1 so we copy the NULL too */
216 return afs_pd_putBytes(apd, str, strlen(str) +1);
220 * \defgroup pioctl Path IOCTL functions
222 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
225 * the AFS vcache structure in use by pioctl
229 * the AFS vrequest structure
231 * an afs_pdata block describing the data received from the caller
233 * an afs_pdata block describing a pre-allocated block for output
235 * UNIX credentials structure underlying the operation
238 #define DECL_PIOCTL(x) \
239 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
240 struct afs_pdata *ain, struct afs_pdata *aout, \
243 /* Prototypes for pioctl routines */
244 DECL_PIOCTL(PGetFID);
245 DECL_PIOCTL(PSetAcl);
246 DECL_PIOCTL(PStoreBehind);
247 DECL_PIOCTL(PGCPAGs);
248 DECL_PIOCTL(PGetAcl);
251 DECL_PIOCTL(PGetFileCell);
252 DECL_PIOCTL(PGetWSCell);
253 DECL_PIOCTL(PGetUserCell);
254 DECL_PIOCTL(PSetTokens);
255 DECL_PIOCTL(PSetTokens2);
256 DECL_PIOCTL(PGetVolumeStatus);
257 DECL_PIOCTL(PSetVolumeStatus);
259 DECL_PIOCTL(PNewStatMount);
260 DECL_PIOCTL(PGetTokens);
261 DECL_PIOCTL(PGetTokens2);
263 DECL_PIOCTL(PMariner);
264 DECL_PIOCTL(PCheckServers);
265 DECL_PIOCTL(PCheckVolNames);
266 DECL_PIOCTL(PCheckAuth);
267 DECL_PIOCTL(PFindVolume);
268 DECL_PIOCTL(PViceAccess);
269 DECL_PIOCTL(PSetCacheSize);
270 DECL_PIOCTL(PGetCacheSize);
271 DECL_PIOCTL(PRemoveCallBack);
272 DECL_PIOCTL(PNewCell);
273 DECL_PIOCTL(PNewAlias);
274 DECL_PIOCTL(PListCells);
275 DECL_PIOCTL(PListAliases);
276 DECL_PIOCTL(PRemoveMount);
277 DECL_PIOCTL(PGetCellStatus);
278 DECL_PIOCTL(PSetCellStatus);
279 DECL_PIOCTL(PFlushVolumeData);
280 DECL_PIOCTL(PFlushAllVolumeData);
281 DECL_PIOCTL(PGetVnodeXStatus);
282 DECL_PIOCTL(PGetVnodeXStatus2);
283 DECL_PIOCTL(PSetSysName);
284 DECL_PIOCTL(PSetSPrefs);
285 DECL_PIOCTL(PSetSPrefs33);
286 DECL_PIOCTL(PGetSPrefs);
287 DECL_PIOCTL(PExportAfs);
289 DECL_PIOCTL(PTwiddleRx);
290 DECL_PIOCTL(PGetInitParams);
291 DECL_PIOCTL(PGetRxkcrypt);
292 DECL_PIOCTL(PSetRxkcrypt);
293 DECL_PIOCTL(PGetCPrefs);
294 DECL_PIOCTL(PSetCPrefs);
295 DECL_PIOCTL(PFlushMount);
296 DECL_PIOCTL(PRxStatProc);
297 DECL_PIOCTL(PRxStatPeer);
298 DECL_PIOCTL(PPrefetchFromTape);
300 DECL_PIOCTL(PCallBackAddr);
301 DECL_PIOCTL(PDiscon);
302 DECL_PIOCTL(PNFSNukeCreds);
303 DECL_PIOCTL(PNewUuid);
304 DECL_PIOCTL(PPrecache);
305 DECL_PIOCTL(PGetPAG);
306 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
307 DECL_PIOCTL(PSetCachingThreshold);
311 * A macro that says whether we're going to need HandleClientContext().
312 * This is currently used only by the nfs translator.
314 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
315 #define AFS_NEED_CLIENTCONTEXT
318 /* Prototypes for private routines */
319 #ifdef AFS_NEED_CLIENTCONTEXT
320 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
324 int HandleIoctl(struct vcache *avc, afs_int32 acom,
325 struct afs_ioctl *adata);
326 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
327 struct afs_ioctl *ablob, int afollow,
328 afs_ucred_t **acred);
329 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
332 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
333 struct afs_pdata *, struct afs_pdata *,
336 static pioctlFunction VpioctlSw[] = {
341 PGetVolumeStatus, /* 4 */
342 PSetVolumeStatus, /* 5 */
347 PCheckServers, /* 10 */
348 PCheckVolNames, /* 11 */
350 PBogus, /* 13 -- used to be quick check time */
351 PFindVolume, /* 14 */
352 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
353 PBogus, /* 16 -- used to be testing code */
354 PNoop, /* 17 -- used to be enable group */
355 PNoop, /* 18 -- used to be disable group */
356 PBogus, /* 19 -- used to be list group */
357 PViceAccess, /* 20 */
358 PUnlog, /* 21 -- unlog *is* unpag in this system */
359 PGetFID, /* 22 -- get file ID */
360 PBogus, /* 23 -- used to be waitforever */
361 PSetCacheSize, /* 24 */
362 PRemoveCallBack, /* 25 -- flush only the callback */
365 PRemoveMount, /* 28 -- delete mount point */
366 PNewStatMount, /* 29 -- new style mount point stat */
367 PGetFileCell, /* 30 -- get cell name for input file */
368 PGetWSCell, /* 31 -- get cell name for workstation */
369 PMariner, /* 32 - set/get mariner host */
370 PGetUserCell, /* 33 -- get cell name for user */
371 PBogus, /* 34 -- Enable/Disable logging */
372 PGetCellStatus, /* 35 */
373 PSetCellStatus, /* 36 */
374 PFlushVolumeData, /* 37 -- flush all data from a volume */
375 PSetSysName, /* 38 - Set system name */
376 PExportAfs, /* 39 - Export Afs to remote nfs clients */
377 PGetCacheSize, /* 40 - get cache size and usage */
378 PGetVnodeXStatus, /* 41 - get vcache's special status */
379 PSetSPrefs33, /* 42 - Set CM Server preferences... */
380 PGetSPrefs, /* 43 - Get CM Server preferences... */
381 PGag, /* 44 - turn off/on all CM messages */
382 PTwiddleRx, /* 45 - adjust some RX params */
383 PSetSPrefs, /* 46 - Set CM Server preferences... */
384 PStoreBehind, /* 47 - set degree of store behind to be done */
385 PGCPAGs, /* 48 - disable automatic pag gc-ing */
386 PGetInitParams, /* 49 - get initial cm params */
387 PGetCPrefs, /* 50 - get client interface addresses */
388 PSetCPrefs, /* 51 - set client interface addresses */
389 PFlushMount, /* 52 - flush mount symlink data */
390 PRxStatProc, /* 53 - control process RX statistics */
391 PRxStatPeer, /* 54 - control peer RX statistics */
392 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
393 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
394 PBogus, /* 57 -- arla: set file prio */
395 PBogus, /* 58 -- arla: fallback getfh */
396 PBogus, /* 59 -- arla: fallback fhopen */
397 PBogus, /* 60 -- arla: controls xfsdebug */
398 PBogus, /* 61 -- arla: controls arla debug */
399 PBogus, /* 62 -- arla: debug interface */
400 PBogus, /* 63 -- arla: print xfs status */
401 PBogus, /* 64 -- arla: force cache check */
402 PBogus, /* 65 -- arla: break callback */
403 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
404 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
405 PBogus, /* 68 -- arla: fetch stats */
406 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
409 static pioctlFunction CpioctlSw[] = {
411 PNewAlias, /* 1 -- create new cell alias */
412 PListAliases, /* 2 -- list cell aliases */
413 PCallBackAddr, /* 3 -- request addr for callback rxcon */
415 PDiscon, /* 5 -- get/set discon mode */
424 PFlushAllVolumeData, /* 14 */
427 static pioctlFunction OpioctlSw[] = {
429 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
430 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
431 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
433 PNoop /* 2 -- get/set cache-bypass size threshold */
437 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
438 int afs_nobody = NFS_NOBODY;
441 HandleIoctl(struct vcache *avc, afs_int32 acom,
442 struct afs_ioctl *adata)
447 AFS_STATCNT(HandleIoctl);
449 switch (acom & 0xff) {
451 avc->f.states |= CSafeStore;
453 /* SXW - Should we force a MetaData flush for this flag setting */
456 /* case 2 used to be abort store, but this is no longer provided,
457 * since it is impossible to implement under normal Unix.
461 /* return the name of the cell this file is open on */
465 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
467 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
469 if (i > adata->out_size) {
470 /* 0 means we're not interested in the output */
471 if (adata->out_size != 0)
475 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
477 afs_PutCell(tcell, READ_LOCK);
483 case 49: /* VIOC_GETINITPARAMS */
484 if (adata->out_size < sizeof(struct cm_initparams)) {
487 AFS_COPYOUT(&cm_initParams, adata->out,
488 sizeof(struct cm_initparams), code);
500 return code; /* so far, none implemented */
504 /* For aix we don't temporarily bypass ioctl(2) but rather do our
505 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
506 * is now called from afs_gn_ioctl.
509 afs_ioctl(struct vcache *tvc, int cmd, int arg)
511 struct afs_ioctl data;
514 AFS_STATCNT(afs_ioctl);
515 if (((cmd >> 8) & 0xff) == 'V') {
516 /* This is a VICEIOCTL call */
517 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
520 error = HandleIoctl(tvc, cmd, &data);
523 /* No-op call; just return. */
527 # if defined(AFS_AIX32_ENV)
528 # if defined(AFS_AIX51_ENV)
531 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
533 # else /* __64BIT__ */
535 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
537 # endif /* __64BIT__ */
540 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
541 # endif /* AFS_AIX51_ENV */
546 # ifdef AFS_AIX51_ENV
549 } u_uap, *uap = &u_uap;
552 int ioctlDone = 0, code = 0;
554 AFS_STATCNT(afs_xioctl);
558 # ifdef AFS_AIX51_ENV
562 if (setuerror(getf(uap->fd, &fd))) {
565 if (fd->f_type == DTYPE_VNODE) {
566 /* good, this is a vnode; next see if it is an AFS vnode */
567 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
568 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
569 /* This is an AFS vnode */
570 if (((uap->com >> 8) & 0xff) == 'V') {
571 struct afs_ioctl *datap;
573 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
574 code=copyin_afs_ioctl((char *)uap->arg, datap);
576 osi_FreeSmallSpace(datap);
578 # if defined(AFS_AIX41_ENV)
581 return (setuerror(code), code);
583 code = HandleIoctl(tvc, uap->com, datap);
584 osi_FreeSmallSpace(datap);
587 # if defined(AFS_AIX41_ENV)
594 # if defined(AFS_AIX41_ENV)
596 # if defined(AFS_AIX51_ENV)
598 code = okioctl(fdes, com, arg, ext, arg2, arg3);
599 # else /* __64BIT__ */
600 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
601 # endif /* __64BIT__ */
602 # else /* !AFS_AIX51_ENV */
603 code = okioctl(fdes, com, arg, ext);
604 # endif /* AFS_AIX51_ENV */
606 # elif defined(AFS_AIX32_ENV)
607 okioctl(fdes, com, arg, ext);
610 # if defined(KERNEL_HAVE_UERROR)
613 # if !defined(AFS_AIX41_ENV)
614 return (getuerror()? -1 : u.u_ioctlrv);
616 return getuerror()? -1 : 0;
623 #elif defined(AFS_SGI_ENV)
624 # if defined(AFS_SGI65_ENV)
625 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
626 rval_t * rvalp, struct vopbd * vbds)
628 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
629 rval_t * rvalp, struct vopbd * vbds)
632 struct afs_ioctl data;
638 AFS_STATCNT(afs_ioctl);
639 if (((cmd >> 8) & 0xff) == 'V') {
640 /* This is a VICEIOCTL call */
641 error = copyin_afs_ioctl(arg, &data);
644 locked = ISAFS_GLOCK();
647 error = HandleIoctl(tvc, cmd, &data);
652 /* No-op call; just return. */
656 #elif defined(AFS_SUN5_ENV)
657 struct afs_ioctl_sys {
664 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
668 int ioctlDone = 0, code = 0;
670 AFS_STATCNT(afs_xioctl);
674 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
675 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
676 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
677 /* This is an AFS vnode */
678 if (((uap->com >> 8) & 0xff) == 'V') {
679 struct afs_ioctl *datap;
681 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
682 code=copyin_afs_ioctl((char *)uap->arg, datap);
684 osi_FreeSmallSpace(datap);
689 code = HandleIoctl(tvc, uap->com, datap);
690 osi_FreeSmallSpace(datap);
698 code = ioctl(uap, rvp);
702 #elif defined(AFS_LINUX22_ENV)
703 struct afs_ioctl_sys {
708 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
711 struct afs_ioctl_sys ua, *uap = &ua;
715 AFS_STATCNT(afs_xioctl);
720 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
721 /* This is an AFS vnode */
722 if (((uap->com >> 8) & 0xff) == 'V') {
723 struct afs_ioctl *datap;
725 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
726 code = copyin_afs_ioctl((char *)uap->arg, datap);
728 osi_FreeSmallSpace(datap);
732 code = HandleIoctl(tvc, uap->com, datap);
733 osi_FreeSmallSpace(datap);
741 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
749 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
753 int ioctlDone = 0, code = 0;
755 AFS_STATCNT(afs_xioctl);
756 if ((code = fdgetf(p, uap->fd, &fd)))
758 if (fd->f_type == DTYPE_VNODE) {
759 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
760 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
761 /* This is an AFS vnode */
762 if (((uap->com >> 8) & 0xff) == 'V') {
763 struct afs_ioctl *datap;
765 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
766 code = copyin_afs_ioctl((char *)uap->arg, datap);
768 osi_FreeSmallSpace(datap);
772 code = HandleIoctl(tvc, uap->com, datap);
773 osi_FreeSmallSpace(datap);
781 return ioctl(p, uap, retval);
785 #elif defined(AFS_XBSD_ENV)
786 # if defined(AFS_FBSD_ENV)
789 afs_xioctl(struct thread *td, struct ioctl_args *uap,
792 afs_proc_t *p = td->td_proc;
793 # elif defined(AFS_NBSD_ENV)
795 afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
805 afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
808 struct filedesc *fdp;
810 int ioctlDone = 0, code = 0;
813 AFS_STATCNT(afs_xioctl);
814 #if defined(AFS_NBSD40_ENV)
815 fdp = p->l_proc->p_fd;
819 #if defined(AFS_NBSD50_ENV)
820 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL)
823 if ((uap->fd >= fdp->fd_nfiles)
824 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL))
827 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
829 /* first determine whether this is any sort of vnode */
830 if (fd->f_type == DTYPE_VNODE) {
831 /* good, this is a vnode; next see if it is an AFS vnode */
832 # if defined(AFS_OBSD_ENV)
834 IsAfsVnode((struct vnode *)fd->
835 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
837 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
839 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)) {
840 /* This is an AFS vnode */
841 #if defined(AFS_NBSD50_ENV)
842 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
844 if (((uap->com >> 8) & 0xff) == 'V') {
846 struct afs_ioctl *datap;
848 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
849 #if defined(AFS_NBSD50_ENV)
850 code = copyin_afs_ioctl(SCARG(uap, data), datap);
852 code = copyin_afs_ioctl((char *)uap->arg, datap);
855 osi_FreeSmallSpace(datap);
859 #if defined(AFS_NBSD50_ENV)
860 code = HandleIoctl(tvc, SCARG(uap, com), datap);
862 code = HandleIoctl(tvc, uap->com, datap);
864 osi_FreeSmallSpace(datap);
871 #if defined(AFS_NBSD50_ENV)
872 fd_putfile(SCARG(uap, fd));
876 # if defined(AFS_FBSD_ENV)
877 # if (__FreeBSD_version >= 900044)
878 return sys_ioctl(td, uap);
880 return ioctl(td, uap);
882 # elif defined(AFS_OBSD_ENV)
883 code = sys_ioctl(p, uap, retval);
884 # elif defined(AFS_NBSD_ENV)
885 code = sys_ioctl(p, uap, retval);
891 #elif defined(UKERNEL)
899 } *uap = (struct a *)get_user_struct()->u_ap;
902 int ioctlDone = 0, code = 0;
904 AFS_STATCNT(afs_xioctl);
909 /* first determine whether this is any sort of vnode */
910 if (fd->f_type == DTYPE_VNODE) {
911 /* good, this is a vnode; next see if it is an AFS vnode */
912 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
913 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
914 /* This is an AFS vnode */
915 if (((uap->com >> 8) & 0xff) == 'V') {
916 struct afs_ioctl *datap;
918 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
919 code=copyin_afs_ioctl((char *)uap->arg, datap);
921 osi_FreeSmallSpace(datap);
924 return (setuerror(code), code);
926 code = HandleIoctl(tvc, uap->com, datap);
927 osi_FreeSmallSpace(datap);
940 #endif /* AFS_HPUX102_ENV */
942 #if defined(AFS_SGI_ENV)
943 /* "pioctl" system call entry point; just pass argument to the parameterized
952 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
956 AFS_STATCNT(afs_pioctl);
958 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
960 # ifdef AFS_SGI64_ENV
967 #elif defined(AFS_FBSD_ENV)
969 afs_pioctl(struct thread *td, void *args, int *retval)
976 } *uap = (struct a *)args;
978 AFS_STATCNT(afs_pioctl);
979 return (afs_syscall_pioctl
980 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
983 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
985 afs_pioctl(afs_proc_t *p, void *args, int *retval)
992 } *uap = (struct a *)args;
994 AFS_STATCNT(afs_pioctl);
995 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
996 return (afs_syscall_pioctl
997 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1000 return (afs_syscall_pioctl
1001 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1002 # if defined(AFS_FBSD_ENV)
1005 p->p_cred->pc_ucred));
1012 /* macro to avoid adding any more #ifdef's to pioctl code. */
1013 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1014 #define PIOCTL_FREE_CRED() crfree(credp)
1016 #define PIOCTL_FREE_CRED()
1021 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1022 rval_t *vvp, afs_ucred_t *credp)
1024 #ifdef AFS_DARWIN100_ENV
1025 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1026 int follow, afs_ucred_t *credp)
1027 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1028 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1031 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1035 struct afs_ioctl data;
1036 #ifdef AFS_NEED_CLIENTCONTEXT
1037 afs_ucred_t *tmpcred = NULL;
1039 #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)
1040 afs_ucred_t *foreigncreds = NULL;
1043 struct vnode *vp = NULL;
1044 #ifdef AFS_AIX41_ENV
1045 struct ucred *credp = crref(); /* don't free until done! */
1047 #ifdef AFS_LINUX22_ENV
1048 cred_t *credp = crref(); /* don't free until done! */
1052 AFS_STATCNT(afs_syscall_pioctl);
1054 follow = 1; /* compat. with old venus */
1055 code = copyin_afs_ioctl(cmarg, &data);
1058 #if defined(KERNEL_HAVE_UERROR)
1063 if ((com & 0xff) == PSetClientContext) {
1064 #ifdef AFS_NEED_CLIENTCONTEXT
1065 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1066 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1068 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1072 crfree(foreigncreds);
1075 #if defined(KERNEL_HAVE_UERROR)
1076 return (setuerror(code), code);
1081 #else /* AFS_NEED_CLIENTCONTEXT */
1083 #endif /* AFS_NEED_CLIENTCONTEXT */
1085 #ifdef AFS_NEED_CLIENTCONTEXT
1088 * We could have done without temporary setting the u.u_cred below
1089 * (foreigncreds could be passed as param the pioctl modules)
1090 * but calls such as afs_osi_suser() doesn't allow that since it
1091 * references u.u_cred directly. We could, of course, do something
1092 * like afs_osi_suser(cred) which, I think, is better since it
1093 * generalizes and supports multi cred environments...
1095 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1097 credp = foreigncreds;
1098 #elif defined(AFS_AIX41_ENV)
1099 tmpcred = crref(); /* XXX */
1100 crset(foreigncreds);
1101 #elif defined(AFS_HPUX101_ENV)
1102 tmpcred = p_cred(u.u_procp);
1103 set_p_cred(u.u_procp, foreigncreds);
1104 #elif defined(AFS_SGI_ENV)
1105 tmpcred = OSI_GET_CURRENT_CRED();
1106 OSI_SET_CURRENT_CRED(foreigncreds);
1109 u.u_cred = foreigncreds;
1112 #endif /* AFS_NEED_CLIENTCONTEXT */
1113 if ((com & 0xff) == 15) {
1114 /* special case prefetch so entire pathname eval occurs in helper process.
1115 * otherwise, the pioctl call is essentially useless */
1116 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1118 Prefetch(path, &data, follow,
1119 foreigncreds ? foreigncreds : credp);
1121 code = Prefetch(path, &data, follow, osi_curcred());
1124 #if defined(KERNEL_HAVE_UERROR)
1131 #ifdef AFS_AIX41_ENV
1133 lookupname(path, USR, follow, NULL, &vp,
1134 foreigncreds ? foreigncreds : credp);
1136 #ifdef AFS_LINUX22_ENV
1137 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1139 vp = (struct vnode *)dp->d_inode;
1141 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1142 #if defined(AFS_FBSD80_ENV) /* XXX check on 7x */
1145 #endif /* AFS_FBSD80_ENV */
1146 #endif /* AFS_LINUX22_ENV */
1147 #endif /* AFS_AIX41_ENV */
1151 #if defined(KERNEL_HAVE_UERROR)
1159 #if defined(AFS_SUN510_ENV)
1160 if (vp && !IsAfsVnode(vp)) {
1161 struct vnode *realvp;
1163 #ifdef AFS_SUN511_ENV
1164 (VOP_REALVP(vp, &realvp, NULL) == 0)
1166 (VOP_REALVP(vp, &realvp) == 0)
1169 struct vnode *oldvp = vp;
1177 /* now make the call if we were passed no file, or were passed an AFS file */
1178 if (!vp || IsAfsVnode(vp)) {
1179 #if defined(AFS_SUN5_ENV)
1180 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1181 #elif defined(AFS_AIX41_ENV)
1183 struct ucred *cred1, *cred2;
1186 cred1 = cred2 = foreigncreds;
1188 cred1 = cred2 = credp;
1190 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1191 if (cred1 != cred2) {
1192 /* something changed the creds */
1196 #elif defined(AFS_HPUX101_ENV)
1198 struct ucred *cred = p_cred(u.u_procp);
1199 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1201 #elif defined(AFS_SGI_ENV)
1204 credp = OSI_GET_CURRENT_CRED();
1205 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1207 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1208 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1209 #elif defined(UKERNEL)
1210 code = afs_HandlePioctl(vp, com, &data, follow,
1211 &(get_user_struct()->u_cred));
1213 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1216 #if defined(KERNEL_HAVE_UERROR)
1219 code = EINVAL; /* not in /afs */
1224 #if defined(AFS_NEED_CLIENTCONTEXT)
1226 #ifdef AFS_AIX41_ENV
1227 crset(tmpcred); /* restore original credentials */
1229 #if defined(AFS_HPUX101_ENV)
1230 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1231 #elif defined(AFS_SGI_ENV)
1232 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1233 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1234 credp = tmpcred; /* restore original credentials */
1236 osi_curcred() = tmpcred; /* restore original credentials */
1237 #endif /* AFS_HPUX101_ENV */
1238 crfree(foreigncreds);
1241 #endif /* AFS_NEED_CLIENTCONTEXT */
1243 #ifdef AFS_LINUX22_ENV
1245 * Holding the global lock when calling dput can cause a deadlock
1246 * when the kernel calls back into afs_dentry_iput
1252 #if defined(AFS_FBSD80_ENV)
1253 if (VOP_ISLOCKED(vp))
1255 #endif /* AFS_FBSD80_ENV */
1256 AFS_RELE(vp); /* put vnode back */
1260 #if defined(KERNEL_HAVE_UERROR)
1263 return (getuerror());
1269 #ifdef AFS_DARWIN100_ENV
1271 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1272 int follow, afs_ucred_t *credp)
1274 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1275 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1280 #define MAXPIOCTLTOKENLEN \
1281 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1284 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1285 struct afs_ioctl *ablob, int afollow,
1286 afs_ucred_t **acred)
1289 struct vrequest treq;
1291 afs_int32 function, device;
1292 struct afs_pdata input, output;
1293 struct afs_pdata copyInput, copyOutput;
1295 pioctlFunction *pioctlSw;
1297 struct afs_fakestat_state fakestate;
1299 memset(&input, 0, sizeof(input));
1300 memset(&output, 0, sizeof(output));
1302 avc = avp ? VTOAFS(avp) : NULL;
1303 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1304 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1305 AFS_STATCNT(HandlePioctl);
1307 code = afs_InitReq(&treq, *acred);
1311 afs_InitFakeStat(&fakestate);
1313 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1317 device = (acom & 0xff00) >> 8;
1319 case 'V': /* Original pioctls */
1320 pioctlSw = VpioctlSw;
1321 pioctlSwSize = sizeof(VpioctlSw);
1323 case 'C': /* Coordinated/common pioctls */
1324 pioctlSw = CpioctlSw;
1325 pioctlSwSize = sizeof(CpioctlSw);
1327 case 'O': /* Coordinated/common pioctls */
1328 pioctlSw = OpioctlSw;
1329 pioctlSwSize = sizeof(OpioctlSw);
1335 function = acom & 0xff;
1336 if (function >= (pioctlSwSize / sizeof(char *))) {
1341 /* Do all range checking before continuing */
1342 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1343 ablob->in_size < 0 || ablob->out_size < 0) {
1348 code = afs_pd_alloc(&input, ablob->in_size);
1352 if (ablob->in_size > 0) {
1353 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1354 input.ptr[input.remaining] = '\0';
1359 if ((function == 8 && device == 'V') ||
1360 (function == 7 && device == 'C')) { /* PGetTokens */
1361 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1363 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1369 copyOutput = output;
1372 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1373 ©Output, acred);
1375 outSize = copyOutput.ptr - output.ptr;
1377 if (code == 0 && ablob->out_size > 0) {
1378 if (outSize > ablob->out_size) {
1379 code = E2BIG; /* data wont fit in user buffer */
1380 } else if (outSize) {
1381 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1386 afs_pd_free(&input);
1387 afs_pd_free(&output);
1389 afs_PutFakeStat(&fakestate);
1390 return afs_CheckCode(code, &treq, 41);
1394 * VIOCGETFID (22) - Get file ID quickly
1398 * \param[in] ain not in use
1399 * \param[out] aout fid of requested file
1401 * \retval EINVAL Error if some of the initial arguments aren't set
1403 * \post get the file id of some file
1405 DECL_PIOCTL(PGetFID)
1407 AFS_STATCNT(PGetFID);
1410 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1416 * VIOCSETAL (1) - Set access control list
1420 * \param[in] ain the ACL being set
1421 * \param[out] aout the ACL being set returned
1423 * \retval EINVAL Error if some of the standard args aren't set
1425 * \post Changed ACL, via direct writing to the wire
1428 dummy_PSetAcl(char *ain, char *aout)
1433 DECL_PIOCTL(PSetAcl)
1436 struct afs_conn *tconn;
1437 struct AFSOpaque acl;
1438 struct AFSVolSync tsync;
1439 struct AFSFetchStatus OutStatus;
1440 struct rx_connection *rxconn;
1443 AFS_STATCNT(PSetAcl);
1447 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1449 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1450 if (acl.AFSOpaque_len > 1024)
1454 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1456 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1459 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1460 &acl, &OutStatus, &tsync);
1465 } while (afs_Analyze
1466 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1467 SHARED_LOCK, NULL));
1469 /* now we've forgotten all of the access info */
1470 ObtainWriteLock(&afs_xcbhash, 455);
1472 afs_DequeueCallback(avc);
1473 avc->f.states &= ~(CStatd | CUnique);
1474 ReleaseWriteLock(&afs_xcbhash);
1475 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1476 osi_dnlc_purgedp(avc);
1478 /* SXW - Should we flush metadata here? */
1482 int afs_defaultAsynchrony = 0;
1485 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1489 * \param[in] ain sbstruct (store behind structure) input
1490 * \param[out] aout resulting sbstruct
1493 * Error if the user doesn't have super-user credentials
1495 * Error if there isn't enough access to not check the mode bits
1498 * Changes either the default asynchrony (the amount of data that
1499 * can remain to be written when the cache manager returns control
1500 * to the user), or the asyncrony for the specified file.
1502 DECL_PIOCTL(PStoreBehind)
1504 struct sbstruct sbr;
1506 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1509 if (sbr.sb_default != -1) {
1510 if (afs_osi_suser(*acred))
1511 afs_defaultAsynchrony = sbr.sb_default;
1516 if (avc && (sbr.sb_thisfile != -1)) {
1518 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1519 avc->asynchrony = sbr.sb_thisfile;
1524 memset(&sbr, 0, sizeof(sbr));
1525 sbr.sb_default = afs_defaultAsynchrony;
1527 sbr.sb_thisfile = avc->asynchrony;
1530 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1534 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1538 * \param[in] ain not in use
1539 * \param[out] aout not in use
1541 * \retval EACCES Error if the user doesn't have super-user credentials
1543 * \post set the gcpags to GCPAGS_USERDISABLED
1545 DECL_PIOCTL(PGCPAGs)
1547 if (!afs_osi_suser(*acred)) {
1550 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1555 * VIOCGETAL (2) - Get access control list
1559 * \param[in] ain not in use
1560 * \param[out] aout the ACL
1562 * \retval EINVAL Error if some of the standard args aren't set
1563 * \retval ERANGE Error if the vnode of the file id is too large
1564 * \retval -1 Error if getting the ACL failed
1566 * \post Obtain the ACL, based on file ID
1569 * There is a hack to tell which type of ACL is being returned, checks
1570 * the top 2-bytes of the input size to judge what type of ACL it is,
1571 * only for dfs xlator ACLs
1573 DECL_PIOCTL(PGetAcl)
1575 struct AFSOpaque acl;
1576 struct AFSVolSync tsync;
1577 struct AFSFetchStatus OutStatus;
1579 struct afs_conn *tconn;
1581 struct rx_connection *rxconn;
1584 AFS_STATCNT(PGetAcl);
1587 Fid.Volume = avc->f.fid.Fid.Volume;
1588 Fid.Vnode = avc->f.fid.Fid.Vnode;
1589 Fid.Unique = avc->f.fid.Fid.Unique;
1590 if (avc->f.states & CForeign) {
1592 * For a dfs xlator acl we have a special hack so that the
1593 * xlator will distinguish which type of acl will return. So
1594 * we currently use the top 2-bytes (vals 0-4) to tell which
1595 * type of acl to bring back. Horrible hack but this will
1596 * cause the least number of changes to code size and interfaces.
1598 if (Fid.Vnode & 0xc0000000)
1600 Fid.Vnode |= (ain->remaining << 30);
1602 acl.AFSOpaque_val = aout->ptr;
1604 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1606 acl.AFSOpaque_val[0] = '\0';
1607 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1609 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1614 } while (afs_Analyze
1615 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1616 SHARED_LOCK, NULL));
1619 if (acl.AFSOpaque_len == 0)
1620 afs_pd_skip(aout, 1); /* leave the NULL */
1622 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1628 * PNoop returns success. Used for functions which are not implemented
1629 * or are no longer in use.
1633 * \retval Always returns success
1636 * Functions involved in this:
1637 * 17 (VIOCENGROUP) -- used to be enable group;
1638 * 18 (VIOCDISGROUP) -- used to be disable group;
1639 * 2 (?) -- get/set cache-bypass size threshold
1648 * PBogus returns fail. Used for functions which are not implemented or
1649 * are no longer in use.
1653 * \retval EINVAL Always returns this value
1656 * Functions involved in this:
1662 * 13 (VIOCGETTIME) -- used to be quick check time;
1663 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1664 * 16 (VIOCNOP) -- used to be testing code;
1665 * 19 (VIOCLISTGROUPS) -- used to be list group;
1666 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1667 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1668 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1669 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1670 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1671 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1672 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1673 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1674 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1675 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1676 * 68 (?) -- arla: fetch stats;
1680 AFS_STATCNT(PBogus);
1685 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1689 * \param[in] ain not in use (avc used to pass in file id)
1690 * \param[out] aout cell name
1692 * \retval EINVAL Error if some of the standard args aren't set
1693 * \retval ESRCH Error if the file isn't part of a cell
1695 * \post Get a cell based on a passed in file id
1697 DECL_PIOCTL(PGetFileCell)
1701 AFS_STATCNT(PGetFileCell);
1704 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1708 if (afs_pd_putString(aout, tcell->cellName) != 0)
1711 afs_PutCell(tcell, READ_LOCK);
1716 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1720 * \param[in] ain not in use
1721 * \param[out] aout cell name
1724 * Error if the afs daemon hasn't started yet
1726 * Error if the machine isn't part of a cell, for whatever reason
1728 * \post Get the primary cell that the machine is a part of.
1730 DECL_PIOCTL(PGetWSCell)
1732 struct cell *tcell = NULL;
1734 AFS_STATCNT(PGetWSCell);
1735 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1736 return EIO; /* Inappropriate ioctl for device */
1738 tcell = afs_GetPrimaryCell(READ_LOCK);
1739 if (!tcell) /* no primary cell? */
1742 if (afs_pd_putString(aout, tcell->cellName) != 0)
1744 afs_PutCell(tcell, READ_LOCK);
1749 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1753 * \param[in] ain not in use (user id found via areq)
1754 * \param[out] aout cell name
1757 * Error if the user id doesn't have a primary cell specified
1759 * \post Get the primary cell for a certain user, based on the user's uid
1761 DECL_PIOCTL(PGetUserCell)
1764 struct unixuser *tu;
1767 AFS_STATCNT(PGetUserCell);
1768 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1769 return EIO; /* Inappropriate ioctl for device */
1771 /* return the cell name of the primary cell for this user */
1772 i = UHash(areq->uid);
1773 ObtainWriteLock(&afs_xuser, 224);
1774 for (tu = afs_users[i]; tu; tu = tu->next) {
1775 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1777 ReleaseWriteLock(&afs_xuser);
1778 afs_LockUser(tu, READ_LOCK, 0);
1783 tcell = afs_GetCell(tu->cell, READ_LOCK);
1784 afs_PutUser(tu, READ_LOCK);
1788 if (afs_pd_putString(aout, tcell->cellName) != 0)
1790 afs_PutCell(tcell, READ_LOCK);
1793 ReleaseWriteLock(&afs_xuser);
1798 /* Work out which cell we're changing tokens for */
1800 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1808 if (cellName && strlen(cellName) > 0) {
1809 cell = afs_GetCellByName(cellName, READ_LOCK);
1811 cell = afs_GetPrimaryCell(READ_LOCK);
1822 *cellNum = cell->cellNum;
1823 afs_PutCell(cell, READ_LOCK);
1830 _settok_setParentPag(afs_ucred_t **cred) {
1832 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1834 osi_procname(procname, 256);
1835 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1836 MyPidxx2Pid(MyPidxx), procname);
1837 return setpag(osi_curproc(), cred, -1, &pag, 1);
1839 return setpag(cred, -1, &pag, 1);
1844 * VIOCSETTOK (3) - Set authentication tokens
1848 * \param[in] ain the krb tickets from which to set the afs tokens
1849 * \param[out] aout not in use
1852 * Error if the ticket is either too long or too short
1854 * Error if the AFS initState is below 101
1856 * Error if the cell for which the Token is being set can't be found
1859 * Set the Tokens for a specific cell name, unless there is none set,
1860 * then default to primary
1863 DECL_PIOCTL(PSetTokens)
1868 struct unixuser *tu;
1869 struct ClearToken clear;
1873 struct vrequest treq;
1874 afs_int32 flag, set_parent_pag = 0;
1876 AFS_STATCNT(PSetTokens);
1877 if (!afs_resourceinit_flag) {
1881 if (afs_pd_getInt(ain, &stLen) != 0)
1884 stp = afs_pd_where(ain); /* remember where the ticket is */
1885 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1886 return EINVAL; /* malloc may fail */
1887 if (afs_pd_skip(ain, stLen) != 0)
1890 if (afs_pd_getInt(ain, &size) != 0)
1892 if (size != sizeof(struct ClearToken))
1895 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1898 if (clear.AuthHandle == -1)
1899 clear.AuthHandle = 999; /* more rxvab compat stuff */
1901 if (afs_pd_remaining(ain) != 0) {
1902 /* still stuff left? we've got primary flag and cell name.
1905 if (afs_pd_getInt(ain, &flag) != 0)
1908 /* some versions of gcc appear to need != 0 in order to get this
1910 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1915 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1918 code = _settok_tokenCell(cellName, &cellNum, NULL);
1922 /* default to primary cell, primary id */
1923 code = _settok_tokenCell(NULL, &cellNum, &flag);
1928 if (set_parent_pag) {
1929 if (_settok_setParentPag(acred) == 0) {
1930 afs_InitReq(&treq, *acred);
1935 /* now we just set the tokens */
1936 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1937 /* Set tokens destroys any that are already there */
1938 afs_FreeTokens(&tu->tokens);
1939 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1941 afs_stats_cmfullperf.authent.TicketUpdates++;
1942 afs_ComputePAGStats();
1943 #endif /* AFS_NOSTATS */
1944 tu->states |= UHasTokens;
1945 tu->states &= ~UTokensBad;
1946 afs_SetPrimary(tu, flag);
1947 tu->tokenTime = osi_Time();
1948 afs_ResetUserConns(tu);
1949 afs_NotifyUser(tu, UTokensObtained);
1950 afs_PutUser(tu, WRITE_LOCK);
1956 * VIOCGETVOLSTAT (4) - Get volume status
1960 * \param[in] ain not in use
1961 * \param[out] aout status of the volume
1963 * \retval EINVAL Error if some of the standard args aren't set
1966 * The status of a volume (based on the FID of the volume), or an
1967 * offline message /motd
1969 DECL_PIOCTL(PGetVolumeStatus)
1972 char *offLineMsg = afs_osi_Alloc(256);
1973 char *motd = afs_osi_Alloc(256);
1974 struct afs_conn *tc;
1976 struct AFSFetchVolumeStatus volstat;
1978 struct rx_connection *rxconn;
1981 osi_Assert(offLineMsg != NULL);
1982 osi_Assert(motd != NULL);
1983 AFS_STATCNT(PGetVolumeStatus);
1990 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1992 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1995 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
1996 &Name, &offLineMsg, &motd);
2001 } while (afs_Analyze
2002 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
2003 SHARED_LOCK, NULL));
2007 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
2008 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2010 if (afs_pd_putString(aout, volName) != 0)
2012 if (afs_pd_putString(aout, offLineMsg) != 0)
2014 if (afs_pd_putString(aout, motd) != 0)
2017 afs_osi_Free(offLineMsg, 256);
2018 afs_osi_Free(motd, 256);
2023 * VIOCSETVOLSTAT (5) - Set volume status
2028 * values to set the status at, offline message, message of the day,
2029 * volume name, minimum quota, maximum quota
2031 * status of a volume, offlines messages, minimum quota, maximumm quota
2034 * Error if some of the standard args aren't set
2036 * Error if the volume is read only, or a backup volume
2038 * Error if the volume can't be accessed
2040 * Error if the volume name, offline message, and motd are too big
2043 * Set the status of a volume, including any offline messages,
2044 * a minimum quota, and a maximum quota
2046 DECL_PIOCTL(PSetVolumeStatus)
2051 struct afs_conn *tc;
2053 struct AFSFetchVolumeStatus volstat;
2054 struct AFSStoreVolumeStatus storeStat;
2056 struct rx_connection *rxconn;
2059 AFS_STATCNT(PSetVolumeStatus);
2063 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2065 if (tvp->states & (VRO | VBackup)) {
2066 afs_PutVolume(tvp, READ_LOCK);
2069 afs_PutVolume(tvp, READ_LOCK);
2074 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2077 if (afs_pd_getStringPtr(ain, &volName) != 0)
2079 if (strlen(volName) > 32)
2082 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2084 if (strlen(offLineMsg) > 256)
2087 if (afs_pd_getStringPtr(ain, &motd) != 0)
2089 if (strlen(motd) > 256)
2092 /* Done reading ... */
2095 if (volstat.MinQuota != -1) {
2096 storeStat.MinQuota = volstat.MinQuota;
2097 storeStat.Mask |= AFS_SETMINQUOTA;
2099 if (volstat.MaxQuota != -1) {
2100 storeStat.MaxQuota = volstat.MaxQuota;
2101 storeStat.Mask |= AFS_SETMAXQUOTA;
2104 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2106 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2109 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2110 volName, offLineMsg, motd);
2115 } while (afs_Analyze
2116 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2117 SHARED_LOCK, NULL));
2121 /* we are sending parms back to make compat. with prev system. should
2122 * change interface later to not ask for current status, just set new
2125 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2127 if (afs_pd_putString(aout, volName) != 0)
2129 if (afs_pd_putString(aout, offLineMsg) != 0)
2131 if (afs_pd_putString(aout, motd) != 0)
2138 * VIOCFLUSH (6) - Invalidate cache entry
2142 * \param[in] ain not in use
2143 * \param[out] aout not in use
2145 * \retval EINVAL Error if some of the standard args aren't set
2147 * \post Flush any information the cache manager has on an entry
2151 AFS_STATCNT(PFlush);
2154 #ifdef AFS_BOZONLOCK_ENV
2155 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2157 ObtainWriteLock(&avc->lock, 225);
2158 afs_ResetVCache(avc, *acred, 0);
2159 ReleaseWriteLock(&avc->lock);
2160 #ifdef AFS_BOZONLOCK_ENV
2161 afs_BozonUnlock(&avc->pvnLock, avc);
2167 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2172 * the last component in a path, related to mountpoint that we're
2173 * looking for information about
2175 * volume, cell, link data
2177 * \retval EINVAL Error if some of the standard args aren't set
2178 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2179 * \retval EIO Error if the link data can't be accessed
2181 * \post Get the volume, and cell, as well as the link data for a mount point
2183 DECL_PIOCTL(PNewStatMount)
2188 struct VenusFid tfid;
2191 struct sysname_info sysState;
2192 afs_size_t offset, len;
2194 AFS_STATCNT(PNewStatMount);
2198 if (afs_pd_getStringPtr(ain, &name) != 0)
2201 code = afs_VerifyVCache(avc, areq);
2204 if (vType(avc) != VDIR) {
2207 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2210 Check_AtSys(avc, name, &sysState, areq);
2211 ObtainReadLock(&tdc->lock);
2213 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2214 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2215 ReleaseReadLock(&tdc->lock);
2216 afs_PutDCache(tdc); /* we're done with the data */
2217 bufp = sysState.name;
2221 tfid.Cell = avc->f.fid.Cell;
2222 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2223 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2224 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2226 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2232 if (tvc->mvstat != 1) {
2237 ObtainWriteLock(&tvc->lock, 226);
2238 code = afs_HandleLink(tvc, areq);
2240 if (tvc->linkData) {
2241 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2244 /* we have the data */
2245 if (afs_pd_putString(aout, tvc->linkData) != 0)
2251 ReleaseWriteLock(&tvc->lock);
2254 if (sysState.allocked)
2255 osi_FreeLargeSpace(bufp);
2260 * A helper function to get the n'th cell which a particular user has tokens
2261 * for. This is racy. If new tokens are added whilst we're iterating, then
2262 * we may return some cells twice. If tokens expire mid run, then we'll
2263 * miss some cells from our output. So, could be better, but that would
2264 * require an interface change.
2267 static struct unixuser *
2268 getNthCell(afs_int32 uid, afs_int32 iterator) {
2270 struct unixuser *tu = NULL;
2273 ObtainReadLock(&afs_xuser);
2274 for (tu = afs_users[i]; tu; tu = tu->next) {
2275 if (tu->uid == uid && (tu->states & UHasTokens)) {
2276 if (iterator-- == 0)
2277 break; /* are we done yet? */
2283 ReleaseReadLock(&afs_xuser);
2285 afs_LockUser(tu, READ_LOCK, 0);
2292 * VIOCGETTOK (8) - Get authentication tokens
2296 * \param[in] ain cellid to return tokens for
2297 * \param[out] aout token
2300 * Error if the afs daemon hasn't started yet
2302 * Error if the input parameter is out of the bounds of the available
2305 * Error if there aren't tokens for this cell
2308 * If the input paramater exists, get the token that corresponds to
2309 * the parameter value, if there is no token at this value, get the
2310 * token for the first cell
2312 * \notes "it's a weird interface (from comments in the code)"
2315 DECL_PIOCTL(PGetTokens)
2318 struct unixuser *tu = NULL;
2319 union tokenUnion *token;
2320 afs_int32 iterator = 0;
2325 AFS_STATCNT(PGetTokens);
2326 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2327 return EIO; /* Inappropriate ioctl for device */
2329 /* weird interface. If input parameter is present, it is an integer and
2330 * we're supposed to return the parm'th tokens for this unix uid.
2331 * If not present, we just return tokens for cell 1.
2332 * If counter out of bounds, return EDOM.
2333 * If no tokens for the particular cell, return ENOTCONN.
2334 * Also, if this mysterious parm is present, we return, along with the
2335 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2336 * at the end, in that order.
2338 newStyle = (afs_pd_remaining(ain) > 0);
2340 if (afs_pd_getInt(ain, &iterator) != 0)
2344 tu = getNthCell(areq->uid, iterator);
2346 cellNum = afs_GetPrimaryCellNum();
2348 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2353 if (!(tu->states & UHasTokens)
2354 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2355 tu->states |= (UTokensBad | UNeedsReset);
2356 afs_NotifyUser(tu, UTokensDropped);
2357 afs_PutUser(tu, READ_LOCK);
2360 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2362 /* If they don't have an RXKAD token, but do have other tokens,
2363 * then sadly there's nothing this interface can do to help them. */
2367 /* for compat, we try to return 56 byte tix if they fit */
2368 iterator = token->rxkad.ticketLen;
2370 iterator = 56; /* # of bytes we're returning */
2372 if (afs_pd_putInt(aout, iterator) != 0)
2374 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2376 if (token->rxkad.ticketLen < 56) {
2377 /* Tokens are always 56 bytes or larger */
2378 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2383 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2385 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2386 sizeof(struct ClearToken)) != 0)
2390 /* put out primary id and cell name, too */
2391 iterator = (tu->states & UPrimary ? 1 : 0);
2392 if (afs_pd_putInt(aout, iterator) != 0)
2394 tcell = afs_GetCell(tu->cell, READ_LOCK);
2396 if (afs_pd_putString(aout, tcell->cellName) != 0)
2398 afs_PutCell(tcell, READ_LOCK);
2400 if (afs_pd_putString(aout, "") != 0)
2403 /* Got here, all is good */
2406 afs_PutUser(tu, READ_LOCK);
2411 * VIOCUNLOG (9) - Invalidate tokens
2415 * \param[in] ain not in use
2416 * \param[out] aout not in use
2418 * \retval EIO Error if the afs daemon hasn't been started yet
2420 * \post remove tokens from a user, specified by the user id
2422 * \notes sets the token's time to 0, which then causes it to be removed
2423 * \notes Unlog is the same as un-pag in OpenAFS
2428 struct unixuser *tu;
2430 AFS_STATCNT(PUnlog);
2431 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2432 return EIO; /* Inappropriate ioctl for device */
2434 i = UHash(areq->uid);
2435 ObtainWriteLock(&afs_xuser, 227);
2436 for (tu = afs_users[i]; tu; tu = tu->next) {
2437 if (tu->uid == areq->uid) {
2439 ReleaseWriteLock(&afs_xuser);
2441 afs_LockUser(tu, WRITE_LOCK, 366);
2443 tu->states &= ~UHasTokens;
2444 afs_FreeTokens(&tu->tokens);
2445 afs_NotifyUser(tu, UTokensDropped);
2446 /* We have to drop the lock over the call to afs_ResetUserConns,
2447 * since it obtains the afs_xvcache lock. We could also keep
2448 * the lock, and modify ResetUserConns to take parm saying we
2449 * obtained the lock already, but that is overkill. By keeping
2450 * the "tu" pointer held over the released lock, we guarantee
2451 * that we won't lose our place, and that we'll pass over
2452 * every user conn that existed when we began this call.
2454 afs_ResetUserConns(tu);
2455 afs_PutUser(tu, WRITE_LOCK);
2456 ObtainWriteLock(&afs_xuser, 228);
2458 /* set the expire times to 0, causes
2459 * afs_GCUserData to remove this entry
2462 #endif /* UKERNEL */
2465 ReleaseWriteLock(&afs_xuser);
2470 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2474 * \param[in] ain host address to be set
2475 * \param[out] aout old host address
2478 * depending on whether or not a variable is set, either get the host
2479 * for the cache manager monitor, or set the old address and give it
2482 * \notes Errors turn off mariner
2484 DECL_PIOCTL(PMariner)
2486 afs_int32 newHostAddr;
2487 afs_int32 oldHostAddr;
2489 AFS_STATCNT(PMariner);
2491 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2494 oldHostAddr = 0xffffffff; /* disabled */
2496 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2499 if (newHostAddr == 0xffffffff) {
2500 /* disable mariner operations */
2502 } else if (newHostAddr) {
2504 afs_marinerHost = newHostAddr;
2507 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2514 * VIOCCKSERV (10) - Check that servers are up
2518 * \param[in] ain name of the cell
2519 * \param[out] aout current down server list
2521 * \retval EIO Error if the afs daemon hasn't started yet
2522 * \retval EACCES Error if the user doesn't have super-user credentials
2523 * \retval ENOENT Error if we are unable to obtain the cell
2526 * Either a fast check (where it doesn't contact servers) or a
2527 * local check (checks local cell only)
2529 DECL_PIOCTL(PCheckServers)
2534 char *cellName = NULL;
2536 struct chservinfo *pcheck;
2538 AFS_STATCNT(PCheckServers);
2540 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2541 return EIO; /* Inappropriate ioctl for device */
2543 /* This is tricky, because we need to peak at the datastream to see
2544 * what we're getting. For now, let's cheat. */
2546 /* ain contains either an int32 or a string */
2547 if (ain->remaining == 0)
2550 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2551 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2555 if (pcheck->tinterval >= 0) {
2556 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2558 if (pcheck->tinterval > 0) {
2559 if (!afs_osi_suser(*acred))
2561 afs_probe_interval = pcheck->tinterval;
2565 temp = pcheck->tflags;
2567 cellName = pcheck->tbuffer;
2568 } else { /* For pre afs3.3 versions */
2569 if (afs_pd_getInt(ain, &temp) != 0)
2571 if (afs_pd_remaining(ain) > 0) {
2572 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2578 * 1: fast check, don't contact servers.
2579 * 2: local cell only.
2582 /* have cell name, too */
2583 cellp = afs_GetCellByName(cellName, READ_LOCK);
2588 if (!cellp && (temp & 2)) {
2589 /* use local cell */
2590 cellp = afs_GetPrimaryCell(READ_LOCK);
2592 if (!(temp & 1)) { /* if not fast, call server checker routine */
2593 afs_CheckServers(1, cellp); /* check down servers */
2594 afs_CheckServers(0, cellp); /* check up servers */
2596 /* now return the current down server list */
2597 ObtainReadLock(&afs_xserver);
2598 for (i = 0; i < NSERVERS; i++) {
2599 for (ts = afs_servers[i]; ts; ts = ts->next) {
2600 if (cellp && ts->cell != cellp)
2601 continue; /* cell spec'd and wrong */
2602 if ((ts->flags & SRVR_ISDOWN)
2603 && ts->addr->sa_portal != ts->cell->vlport) {
2604 afs_pd_putInt(aout, ts->addr->sa_ip);
2608 ReleaseReadLock(&afs_xserver);
2610 afs_PutCell(cellp, READ_LOCK);
2615 * VIOCCKBACK (11) - Check backup volume mappings
2619 * \param[in] ain not in use
2620 * \param[out] aout not in use
2622 * \retval EIO Error if the afs daemon hasn't started yet
2625 * Check the root volume, and then check the names if the volume
2626 * check variable is set to force, has expired, is busy, or if
2627 * the mount points variable is set
2629 DECL_PIOCTL(PCheckVolNames)
2631 AFS_STATCNT(PCheckVolNames);
2632 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2633 return EIO; /* Inappropriate ioctl for device */
2635 afs_CheckRootVolume();
2636 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2637 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2642 * VIOCCKCONN (12) - Check connections for a user
2646 * \param[in] ain not in use
2647 * \param[out] aout not in use
2650 * Error if no user is specififed, the user has no tokens set,
2651 * or if the user's tokens are bad
2654 * check to see if a user has the correct authentication.
2655 * If so, allow access.
2657 * \notes Check the connections to all the servers specified
2659 DECL_PIOCTL(PCheckAuth)
2663 struct sa_conn_vector *tcv;
2664 struct unixuser *tu;
2667 AFS_STATCNT(PCheckAuth);
2668 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2669 return EIO; /* Inappropriate ioctl for device */
2672 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2676 /* we have a user */
2677 ObtainReadLock(&afs_xsrvAddr);
2678 ObtainReadLock(&afs_xconn);
2680 /* any tokens set? */
2681 if ((tu->states & UHasTokens) == 0)
2683 /* all connections in cell 1 working? */
2684 for (i = 0; i < NSERVERS; i++) {
2685 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2686 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2687 if (tcv->user == tu && (tu->states & UTokensBad))
2692 ReleaseReadLock(&afs_xsrvAddr);
2693 ReleaseReadLock(&afs_xconn);
2694 afs_PutUser(tu, READ_LOCK);
2696 if (afs_pd_putInt(aout, retValue) != 0)
2702 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2707 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2713 AFS_STATCNT(Prefetch);
2716 tp = osi_AllocLargeSpace(1024);
2717 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2719 osi_FreeLargeSpace(tp);
2722 if (afs_BBusy()) { /* do this as late as possible */
2723 osi_FreeLargeSpace(tp);
2724 return EWOULDBLOCK; /* pretty close */
2726 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2727 (afs_size_t) 0, tp, (void *)0, (void *)0);
2732 * VIOCWHEREIS (14) - Find out where a volume is located
2736 * \param[in] ain not in use
2737 * \param[out] aout volume location
2739 * \retval EINVAL Error if some of the default arguments don't exist
2740 * \retval ENODEV Error if there is no such volume
2742 * \post fine a volume, based on a volume file id
2744 * \notes check each of the servers specified
2746 DECL_PIOCTL(PFindVolume)
2753 AFS_STATCNT(PFindVolume);
2756 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2760 for (i = 0; i < AFS_MAXHOSTS; i++) {
2761 ts = tvp->serverHost[i];
2764 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2769 if (i < AFS_MAXHOSTS) {
2770 /* still room for terminating NULL, add it on */
2771 if (afs_pd_putInt(aout, 0) != 0) {
2777 afs_PutVolume(tvp, READ_LOCK);
2782 * VIOCACCESS (20) - Access using PRS_FS bits
2786 * \param[in] ain PRS_FS bits
2787 * \param[out] aout not in use
2789 * \retval EINVAL Error if some of the initial arguments aren't set
2790 * \retval EACCES Error if access is denied
2792 * \post check to make sure access is allowed
2794 DECL_PIOCTL(PViceAccess)
2799 AFS_STATCNT(PViceAccess);
2803 code = afs_VerifyVCache(avc, areq);
2807 if (afs_pd_getInt(ain, &temp) != 0)
2810 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2818 * VIOC_GETPAG (13) - Get PAG value
2822 * \param[in] ain not in use
2823 * \param[out] aout PAG value or NOPAG
2825 * \post get PAG value for the caller's cred
2827 DECL_PIOCTL(PGetPAG)
2831 pag = PagInCred(*acred);
2833 return afs_pd_putInt(aout, pag);
2836 DECL_PIOCTL(PPrecache)
2840 /*AFS_STATCNT(PPrecache);*/
2841 if (!afs_osi_suser(*acred))
2844 if (afs_pd_getInt(ain, &newValue) != 0)
2847 afs_preCache = newValue*1024;
2852 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2856 * \param[in] ain the size the venus cache should be set to
2857 * \param[out] aout not in use
2859 * \retval EACCES Error if the user doesn't have super-user credentials
2860 * \retval EROFS Error if the cache is set to be in memory
2863 * Set the cache size based on user input. If no size is given,
2864 * set it to the default OpenAFS cache size.
2867 * recompute the general cache parameters for every single block allocated
2869 DECL_PIOCTL(PSetCacheSize)
2874 AFS_STATCNT(PSetCacheSize);
2876 if (!afs_osi_suser(*acred))
2878 /* too many things are setup initially in mem cache version */
2879 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2881 if (afs_pd_getInt(ain, &newValue) != 0)
2884 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2886 if (newValue < afs_min_cache)
2887 afs_cacheBlocks = afs_min_cache;
2889 afs_cacheBlocks = newValue;
2891 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2892 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2893 afs_MaybeWakeupTruncateDaemon();
2894 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2895 afs_osi_Wait(1000, 0, 0);
2896 afs_MaybeWakeupTruncateDaemon();
2901 #define MAXGCSTATS 16
2903 * VIOCGETCACHEPARMS (40) - Get cache stats
2907 * \param[in] ain afs index flags
2908 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2910 * \post Get the cache blocks, and how many of the cache blocks there are
2912 DECL_PIOCTL(PGetCacheSize)
2914 afs_int32 results[MAXGCSTATS];
2916 struct dcache * tdc;
2919 AFS_STATCNT(PGetCacheSize);
2921 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2922 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2923 } else if (afs_pd_remaining(ain) == 0) {
2929 memset(results, 0, sizeof(results));
2930 results[0] = afs_cacheBlocks;
2931 results[1] = afs_blocksUsed;
2932 results[2] = afs_cacheFiles;
2935 for (i = 0; i < afs_cacheFiles; i++) {
2936 if (afs_indexFlags[i] & IFFree) results[3]++;
2938 } else if (2 == flags){
2939 for (i = 0; i < afs_cacheFiles; i++) {
2940 if (afs_indexFlags[i] & IFFree) results[3]++;
2941 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2942 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2943 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2944 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2945 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2947 tdc = afs_indexTable[i];
2950 size = tdc->validPos;
2951 if ( 0 < size && size < (1<<12) ) results[10]++;
2952 else if (size < (1<<14) ) results[11]++;
2953 else if (size < (1<<16) ) results[12]++;
2954 else if (size < (1<<18) ) results[13]++;
2955 else if (size < (1<<20) ) results[14]++;
2956 else if (size >= (1<<20) ) results[15]++;
2960 return afs_pd_putBytes(aout, results, sizeof(results));
2964 * VIOCFLUSHCB (25) - Flush callback only
2968 * \param[in] ain not in use
2969 * \param[out] aout not in use
2971 * \retval EINVAL Error if some of the standard args aren't set
2972 * \retval 0 0 returned if the volume is set to read-only
2975 * Flushes callbacks, by setting the length of callbacks to one,
2976 * setting the next callback to be sent to the CB_DROPPED value,
2977 * and then dequeues everything else.
2979 DECL_PIOCTL(PRemoveCallBack)
2981 struct afs_conn *tc;
2983 struct AFSCallBack CallBacks_Array[1];
2984 struct AFSCBFids theFids;
2985 struct AFSCBs theCBs;
2986 struct rx_connection *rxconn;
2989 AFS_STATCNT(PRemoveCallBack);
2992 if (avc->f.states & CRO)
2993 return 0; /* read-only-ness can't change */
2994 ObtainWriteLock(&avc->lock, 229);
2995 theFids.AFSCBFids_len = 1;
2996 theCBs.AFSCBs_len = 1;
2997 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2998 theCBs.AFSCBs_val = CallBacks_Array;
2999 CallBacks_Array[0].CallBackType = CB_DROPPED;
3000 if (avc->callback) {
3002 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3004 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
3006 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3010 /* don't set code on failure since we wouldn't use it */
3011 } while (afs_Analyze
3012 (tc, rxconn, code, &avc->f.fid, areq,
3013 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3015 ObtainWriteLock(&afs_xcbhash, 457);
3016 afs_DequeueCallback(avc);
3018 avc->f.states &= ~(CStatd | CUnique);
3019 ReleaseWriteLock(&afs_xcbhash);
3020 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3021 osi_dnlc_purgedp(avc);
3023 ReleaseWriteLock(&avc->lock);
3028 * VIOCNEWCELL (26) - Configure new cell
3033 * the name of the cell, the hosts that will be a part of the cell,
3034 * whether or not it's linked with another cell, the other cell it's
3035 * linked with, the file server port, and the volume server port
3039 * \retval EIO Error if the afs daemon hasn't started yet
3040 * \retval EACCES Error if the user doesn't have super-user cedentials
3041 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3043 * \post creates a new cell
3045 DECL_PIOCTL(PNewCell)
3047 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3048 char *newcell = NULL;
3049 char *linkedcell = NULL;
3051 afs_int32 linkedstate = 0;
3052 afs_int32 fsport = 0, vlport = 0;
3055 AFS_STATCNT(PNewCell);
3056 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3057 return EIO; /* Inappropriate ioctl for device */
3059 if (!afs_osi_suser(*acred))
3062 if (afs_pd_getInt(ain, &magic) != 0)
3064 if (magic != 0x12345678)
3067 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3068 * server addresses while the 3.5 fs newcell command passes
3069 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3072 * This whole logic is bogus, because it relies on the newer command
3073 * sending its 12th address as 0.
3075 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3078 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3079 if (newcell[0] != '\0') {
3082 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3085 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3086 if (afs_pd_getBytes(ain, &cellHosts,
3087 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3089 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3092 if (afs_pd_getInt(ain, &fsport) != 0)
3095 fsport = 0; /* Privileged ports not allowed */
3097 if (afs_pd_getInt(ain, &vlport) != 0)
3100 vlport = 0; /* Privileged ports not allowed */
3102 if (afs_pd_getInt(ain, &ls) != 0)
3105 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3109 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3111 linkedstate |= CLinkedCell;
3114 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3116 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3121 DECL_PIOCTL(PNewAlias)
3123 /* create a new cell alias */
3124 char *realName, *aliasName;
3126 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3127 return EIO; /* Inappropriate ioctl for device */
3129 if (!afs_osi_suser(*acred))
3132 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3134 if (afs_pd_getStringPtr(ain, &realName) != 0)
3137 return afs_NewCellAlias(aliasName, realName);
3141 * VIOCGETCELL (27) - Get cell info
3145 * \param[in] ain The cell index of a specific cell
3146 * \param[out] aout list of servers in the cell
3148 * \retval EIO Error if the afs daemon hasn't started yet
3149 * \retval EDOM Error if there is no cell asked about
3151 * \post Lists the cell's server names and and addresses
3153 DECL_PIOCTL(PListCells)
3155 afs_int32 whichCell;
3156 struct cell *tcell = 0;
3160 AFS_STATCNT(PListCells);
3161 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3162 return EIO; /* Inappropriate ioctl for device */
3164 if (afs_pd_getInt(ain, &whichCell) != 0)
3167 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3173 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3174 if (tcell->cellHosts[i] == 0)
3176 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3179 for (;i < AFS_MAXCELLHOSTS; i++) {
3180 if (afs_pd_putInt(aout, 0) != 0)
3183 if (afs_pd_putString(aout, tcell->cellName) != 0)
3188 afs_PutCell(tcell, READ_LOCK);
3192 DECL_PIOCTL(PListAliases)
3194 afs_int32 whichAlias;
3195 struct cell_alias *tcalias = 0;
3198 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3199 return EIO; /* Inappropriate ioctl for device */
3201 if (afs_pd_getInt(ain, &whichAlias) != 0)
3204 tcalias = afs_GetCellAlias(whichAlias);
3205 if (tcalias == NULL)
3209 if (afs_pd_putString(aout, tcalias->alias) != 0)
3211 if (afs_pd_putString(aout, tcalias->cell) != 0)
3216 afs_PutCellAlias(tcalias);
3221 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3225 * \param[in] ain the name of the file in this dir to remove
3226 * \param[out] aout not in use
3229 * Error if some of the standard args aren't set
3231 * Error if the argument to remove is not a directory
3233 * Error if there is no cache to remove the mount point from or
3234 * if a vcache doesn't exist
3237 * Ensure that everything is OK before deleting the mountpoint.
3238 * If not, don't delete. Delete a mount point based on a file id.
3240 DECL_PIOCTL(PRemoveMount)
3245 struct sysname_info sysState;
3246 afs_size_t offset, len;
3247 struct afs_conn *tc;
3250 struct AFSFetchStatus OutDirStatus;
3251 struct VenusFid tfid;
3252 struct AFSVolSync tsync;
3253 struct rx_connection *rxconn;
3256 /* "ain" is the name of the file in this dir to remove */
3258 AFS_STATCNT(PRemoveMount);
3261 if (afs_pd_getStringPtr(ain, &name) != 0)
3264 code = afs_VerifyVCache(avc, areq);
3267 if (vType(avc) != VDIR)
3270 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3273 Check_AtSys(avc, name, &sysState, areq);
3274 ObtainReadLock(&tdc->lock);
3276 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3277 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3278 ReleaseReadLock(&tdc->lock);
3279 bufp = sysState.name;
3284 tfid.Cell = avc->f.fid.Cell;
3285 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3286 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3287 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3289 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3296 if (tvc->mvstat != 1) {
3302 ObtainWriteLock(&tvc->lock, 230);
3303 code = afs_HandleLink(tvc, areq);
3305 if (tvc->linkData) {
3306 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3311 ReleaseWriteLock(&tvc->lock);
3312 osi_dnlc_purgedp(tvc);
3318 ObtainWriteLock(&avc->lock, 231);
3319 osi_dnlc_remove(avc, bufp, tvc);
3321 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3323 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3326 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3327 &OutDirStatus, &tsync);
3332 } while (afs_Analyze
3333 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3334 SHARED_LOCK, NULL));
3339 ReleaseWriteLock(&avc->lock);
3343 /* we have the thing in the cache */
3344 ObtainWriteLock(&tdc->lock, 661);
3345 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3346 /* we can do it locally */
3347 code = afs_dir_Delete(tdc, bufp);
3349 ZapDCE(tdc); /* surprise error -- invalid value */
3353 ReleaseWriteLock(&tdc->lock);
3354 afs_PutDCache(tdc); /* drop ref count */
3356 avc->f.states &= ~CUnique; /* For the dfs xlator */
3357 ReleaseWriteLock(&avc->lock);
3360 if (sysState.allocked)
3361 osi_FreeLargeSpace(bufp);
3366 * VIOC_GETCELLSTATUS (35) - Get cell status info
3370 * \param[in] ain The cell you want status information on
3371 * \param[out] aout cell state (as a struct)
3373 * \retval EIO Error if the afs daemon hasn't started yet
3374 * \retval ENOENT Error if the cell doesn't exist
3376 * \post Returns the state of the cell as defined in a struct cell
3378 DECL_PIOCTL(PGetCellStatus)
3384 AFS_STATCNT(PGetCellStatus);
3385 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3386 return EIO; /* Inappropriate ioctl for device */
3388 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3391 tcell = afs_GetCellByName(cellName, READ_LOCK);
3394 temp = tcell->states;
3395 afs_PutCell(tcell, READ_LOCK);
3397 return afs_pd_putInt(aout, temp);
3401 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3406 * The cell you want to set information about, and the values you
3411 * \retval EIO Error if the afs daemon hasn't started yet
3412 * \retval EACCES Error if the user doesn't have super-user credentials
3415 * Set the state of the cell in a defined struct cell, based on
3416 * whether or not SetUID is allowed
3418 DECL_PIOCTL(PSetCellStatus)
3422 afs_int32 flags0, flags1;
3424 if (!afs_osi_suser(*acred))
3426 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3427 return EIO; /* Inappropriate ioctl for device */
3429 if (afs_pd_getInt(ain, &flags0) != 0)
3431 if (afs_pd_getInt(ain, &flags1) != 0)
3433 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3436 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3439 if (flags0 & CNoSUID)
3440 tcell->states |= CNoSUID;
3442 tcell->states &= ~CNoSUID;
3443 afs_PutCell(tcell, WRITE_LOCK);
3448 FlushVolumeData(struct VenusFid *afid, afs_ucred_t * acred)
3456 afs_int32 volume = 0;
3457 struct afs_q *tq, *uq;
3458 #ifdef AFS_DARWIN80_ENV
3465 volume = afid->Fid.Volume; /* who to zap */
3470 * Clear stat'd flag from all vnodes from this volume; this will
3471 * invalidate all the vcaches associated with the volume.
3474 ObtainReadLock(&afs_xvcache);
3475 for (i = (afid ? VCHashV(afid) : 0); i < VCSIZE; i = (afid ? VCSIZE : i+1)) {
3476 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3479 if (all || (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell)) {
3480 if (tvc->f.states & CVInit) {
3481 ReleaseReadLock(&afs_xvcache);
3482 afs_osi_Sleep(&tvc->f.states);
3485 #ifdef AFS_DARWIN80_ENV
3486 if (tvc->f.states & CDeadVnode) {
3487 ReleaseReadLock(&afs_xvcache);
3488 afs_osi_Sleep(&tvc->f.states);
3494 if (vnode_ref(vp)) {
3503 ReleaseReadLock(&afs_xvcache);
3504 #ifdef AFS_BOZONLOCK_ENV
3505 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3507 ObtainWriteLock(&tvc->lock, 232);
3508 afs_ResetVCache(tvc, acred, 1);
3509 ReleaseWriteLock(&tvc->lock);
3510 #ifdef AFS_BOZONLOCK_ENV
3511 afs_BozonUnlock(&tvc->pvnLock, tvc);
3513 #ifdef AFS_DARWIN80_ENV
3514 vnode_put(AFSTOV(tvc));
3516 ObtainReadLock(&afs_xvcache);
3518 /* our tvc ptr is still good until now */
3523 ReleaseReadLock(&afs_xvcache);
3526 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3527 for (i = 0; i < afs_cacheFiles; i++) {
3528 if (!(afs_indexFlags[i] & IFEverUsed))
3529 continue; /* never had any data */
3530 tdc = afs_GetValidDSlot(i);
3534 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3535 ReleaseReadLock(&tdc->tlock);
3536 if (all || (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell)) {
3537 if (!(afs_indexFlags[i] & (IFDataMod | IFFree | IFDiscarded))) {
3538 /* if the file is modified, but has a ref cnt of only 1,
3539 * then someone probably has the file open and is writing
3540 * into it. Better to skip flushing such a file, it will be
3541 * brought back immediately on the next write anyway.
3543 * Skip if already freed.
3545 * If we *must* flush, then this code has to be rearranged
3546 * to call afs_storeAllSegments() first */
3547 afs_FlushDCache(tdc);
3551 ReleaseReadLock(&tdc->tlock);
3553 afs_PutDCache(tdc); /* bumped by getdslot */
3555 ReleaseWriteLock(&afs_xdcache);
3557 ObtainReadLock(&afs_xvolume);
3558 for (i = 0; i < NVOLS; i++) {
3559 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3560 if (all || tv->volume == volume) {
3561 afs_ResetVolumeInfo(tv);
3566 ReleaseReadLock(&afs_xvolume);
3568 /* probably, a user is doing this, probably, because things are screwed up.
3569 * maybe it's the dnlc's fault? */
3574 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3578 * \param[in] ain not in use (args in avc)
3579 * \param[out] aout not in use
3581 * \retval EINVAL Error if some of the standard args aren't set
3582 * \retval EIO Error if the afs daemon hasn't started yet
3585 * Flush all cached contents of a volume. Exactly what stays and what
3586 * goes depends on the platform.
3589 * Does not flush a file that a user has open and is using, because
3590 * it will be re-created on next write. Also purges the dnlc,
3591 * because things are screwed up.
3593 DECL_PIOCTL(PFlushVolumeData)
3595 AFS_STATCNT(PFlushVolumeData);
3598 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3599 return EIO; /* Inappropriate ioctl for device */
3601 FlushVolumeData(&avc->f.fid, *acred);
3606 * VIOC_FLUSHALL (14) - Flush whole volume's data for all volumes
3610 * \param[in] ain not in use
3611 * \param[out] aout not in use
3613 * \retval EINVAL Error if some of the standard args aren't set
3614 * \retval EIO Error if the afs daemon hasn't started yet
3617 * Flush all cached contents. Exactly what stays and what
3618 * goes depends on the platform.
3621 * Does not flush a file that a user has open and is using, because
3622 * it will be re-created on next write. Also purges the dnlc,
3623 * because things are screwed up.
3625 DECL_PIOCTL(PFlushAllVolumeData)
3627 AFS_STATCNT(PFlushAllVolumeData);
3629 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3630 return EIO; /* Inappropriate ioctl for device */
3632 FlushVolumeData(NULL, *acred);
3637 * VIOCGETVCXSTATUS (41) - gets vnode x status
3642 * not in use (avc used)
3644 * vcxstat: the file id, the data version, any lock, the parent vnode,
3645 * the parent unique id, the trunc position, the callback, cbExpires,
3646 * what access is being made, what files are open,
3647 * any users executing/writing, the flock count, the states,
3651 * Error if some of the initial default arguments aren't set
3653 * Error if access to check the mode bits is denied
3656 * gets stats for the vnode, a struct listed in vcxstat
3658 DECL_PIOCTL(PGetVnodeXStatus)
3661 struct vcxstat stat;
3664 /* AFS_STATCNT(PGetVnodeXStatus); */
3667 code = afs_VerifyVCache(avc, areq);
3670 if (vType(avc) == VDIR)
3671 mode = PRSFS_LOOKUP;
3674 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3677 memset(&stat, 0, sizeof(struct vcxstat));
3678 stat.fid = avc->f.fid;
3679 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3680 stat.lock = avc->lock;
3681 stat.parentVnode = avc->f.parent.vnode;
3682 stat.parentUnique = avc->f.parent.unique;
3683 hset(stat.flushDV, avc->flushDV);
3684 hset(stat.mapDV, avc->mapDV);
3685 stat.truncPos = avc->f.truncPos;
3686 { /* just grab the first two - won't break anything... */
3687 struct axscache *ac;
3689 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3690 stat.randomUid[i] = ac->uid;
3691 stat.randomAccess[i] = ac->axess;
3694 stat.callback = afs_data_pointer_to_int32(avc->callback);
3695 stat.cbExpires = avc->cbExpires;
3696 stat.anyAccess = avc->f.anyAccess;
3697 stat.opens = avc->opens;
3698 stat.execsOrWriters = avc->execsOrWriters;
3699 stat.flockCount = avc->flockCount;
3700 stat.mvstat = avc->mvstat;
3701 stat.states = avc->f.states;
3702 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3706 DECL_PIOCTL(PGetVnodeXStatus2)
3709 struct vcxstat2 stat;
3714 code = afs_VerifyVCache(avc, areq);
3717 if (vType(avc) == VDIR)
3718 mode = PRSFS_LOOKUP;
3721 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3724 memset(&stat, 0, sizeof(struct vcxstat2));
3726 stat.cbExpires = avc->cbExpires;
3727 stat.anyAccess = avc->f.anyAccess;
3728 stat.mvstat = avc->mvstat;
3729 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3731 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3736 * VIOC_AFS_SYSNAME (38) - Change @sys value
3740 * \param[in] ain new value for @sys
3741 * \param[out] aout count, entry, list (debug values?)
3744 * Error if afsd isn't running, the new sysname is too large,
3745 * the new sysname causes issues (starts with a . or ..),
3746 * there is no PAG set in the credentials, or the user of a PAG
3749 * Error if the user doesn't have super-user credentials
3752 * Set the value of @sys if these things work: if the input isn't
3753 * too long or if input doesn't start with . or ..
3756 * We require root for local sysname changes, but not for remote
3757 * (since we don't really believe remote uids anyway)
3758 * outname[] shouldn't really be needed- this is left as an
3759 * exercise for the reader.
3761 DECL_PIOCTL(PSetSysName)
3763 char *inname = NULL;
3764 char outname[MAXSYSNAME];
3765 afs_int32 setsysname;
3767 struct afs_exporter *exporter;
3768 struct unixuser *au;
3769 afs_int32 pag, error;
3770 int t, count, num = 0, allpags = 0;
3772 struct afs_pdata validate;
3774 AFS_STATCNT(PSetSysName);
3775 if (!afs_globalVFS) {
3776 /* Afsd is NOT running; disable it */
3777 #if defined(KERNEL_HAVE_UERROR)
3778 return (setuerror(EINVAL), EINVAL);
3783 if (afs_pd_getInt(ain, &setsysname) != 0)
3785 if (setsysname & 0x8000) {
3787 setsysname &= ~0x8000;
3792 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3795 for (count = 0; count < setsysname; count++) {
3796 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3799 if (t >= MAXSYSNAME || t <= 0)
3801 /* check for names that can shoot us in the foot */
3802 if (inname[0] == '.' && (inname[1] == 0
3803 || (inname[1] == '.' && inname[2] == 0)))
3806 /* args ok, so go back to the beginning of that section */
3808 if (afs_pd_getStringPtr(ain, &inname) != 0)
3812 if (afs_cr_gid(*acred) == RMTUSER_REQ ||
3813 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV) { /* Handles all exporters */
3814 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3817 pag = PagInCred(*acred);
3819 return EINVAL; /* Better than panicing */
3821 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3822 return EINVAL; /* Better than panicing */
3824 if (!(exporter = au->exporter)) {
3825 afs_PutUser(au, READ_LOCK);
3826 return EINVAL; /* Better than panicing */
3828 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3831 if (error == ENODEV)
3832 foundname = 0; /* sysname not set yet! */
3834 afs_PutUser(au, READ_LOCK);
3839 strcpy(outname, sysnamelist[0]);
3841 afs_PutUser(au, READ_LOCK);
3845 /* Not xlating, so local case */
3847 osi_Panic("PSetSysName: !afs_sysname\n");
3848 if (!setsysname) { /* user just wants the info */
3849 strcpy(outname, afs_sysname);
3850 foundname = afs_sysnamecount;
3851 sysnamelist = afs_sysnamelist;
3852 } else { /* Local guy; only root can change sysname */
3853 if (!afs_osi_suser(*acred))
3856 /* allpags makes no sense for local use */
3860 /* clear @sys entries from the dnlc, once afs_lookup can
3861 * do lookups of @sys entries and thinks it can trust them */
3862 /* privs ok, store the entry, ... */
3864 if (strlen(inname) >= MAXSYSNAME-1)
3866 strcpy(afs_sysname, inname);
3868 if (setsysname > 1) { /* ... or list */
3869 for (count = 1; count < setsysname; ++count) {
3870 if (!afs_sysnamelist[count])
3872 ("PSetSysName: no afs_sysnamelist entry to write\n");
3873 if (afs_pd_getString(ain, afs_sysnamelist[count],
3878 afs_sysnamecount = setsysname;
3883 if (afs_pd_putInt(aout, foundname) != 0)
3886 if (afs_pd_putString(aout, outname) != 0)
3888 for (count = 1; count < foundname; ++count) { /* ... or list. */
3889 if (!sysnamelist[count])
3891 ("PSetSysName: no afs_sysnamelist entry to read\n");
3892 t = strlen(sysnamelist[count]);
3893 if (t >= MAXSYSNAME)
3894 osi_Panic("PSetSysName: sysname entry garbled\n");
3895 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3903 /* sequential search through the list of touched cells is not a good
3904 * long-term solution here. For small n, though, it should be just
3905 * fine. Should consider special-casing the local cell for large n.
3906 * Likewise for PSetSPrefs.
3908 * s - number of ids in array l[] -- NOT index of last id
3909 * l - array of cell ids which have volumes that need to be sorted
3910 * vlonly - sort vl servers or file servers?
3913 ReSortCells_cb(struct cell *cell, void *arg)
3915 afs_int32 *p = (afs_int32 *) arg;
3916 afs_int32 *l = p + 1;
3919 for (i = 0; i < s; i++) {
3920 if (l[i] == cell->cellNum) {
3921 ObtainWriteLock(&cell->lock, 690);
3922 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3923 ReleaseWriteLock(&cell->lock);
3931 ReSortCells(int s, afs_int32 * l, int vlonly)
3939 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3940 osi_Assert(p != NULL);
3942 memcpy(p + 1, l, s * sizeof(afs_int32));
3943 afs_TraverseCells(&ReSortCells_cb, p);
3944 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3948 ObtainReadLock(&afs_xvolume);
3949 for (i = 0; i < NVOLS; i++) {
3950 for (j = afs_volumes[i]; j; j = j->next) {
3951 for (k = 0; k < s; k++)
3952 if (j->cell == l[k]) {
3953 ObtainWriteLock(&j->lock, 233);
3954 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3955 ReleaseWriteLock(&j->lock);
3960 ReleaseReadLock(&afs_xvolume);
3964 static int debugsetsp = 0;
3966 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3969 int i, j, k, matches, touchedSize;
3970 struct server *srvr = NULL;
3971 afs_int32 touched[34];
3975 for (k = 0; k < num; sp++, k++) {
3977 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3980 ObtainReadLock(&afs_xserver);
3982 i = SHash(sp->host.s_addr);
3983 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3984 if (sa->sa_ip == sp->host.s_addr) {
3986 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3987 || (sa->sa_portal == AFS_FSPORT);
3988 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3995 if (sa && matches) { /* found one! */
3997 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3999 sa->sa_iprank = sp->rank + afs_randomMod15();
4000 afs_SortOneServer(sa->server);
4003 /* if we don't know yet what cell it's in, this is moot */
4004 for (j = touchedSize - 1;
4005 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
4006 /* is it in our list of touched cells ? */ ;
4007 if (j < 0) { /* no, it's not */
4008 touched[touchedSize++] = srvr->cell->cellNum;
4009 if (touchedSize >= 32) { /* watch for ovrflow */
4010 ReleaseReadLock(&afs_xserver);
4011 ReSortCells(touchedSize, touched, vlonly);
4013 ObtainReadLock(&afs_xserver);
4019 ReleaseReadLock(&afs_xserver);
4020 /* if we didn't find one, start to create one. */
4021 /* Note that it doesn't have a cell yet... */
4023 afs_uint32 temp = sp->host.s_addr;
4025 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
4026 WRITE_LOCK, (afsUUID *) 0, 0, NULL);
4027 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
4028 afs_PutServer(srvr, WRITE_LOCK);
4030 } /* for all cited preferences */
4032 ReSortCells(touchedSize, touched, vlonly);
4037 * VIOC_SETPREFS (46) - Set server ranks
4039 * \param[in] ain the sprefs value you want the sprefs to be set to
4040 * \param[out] aout not in use
4043 * Error if the afs daemon hasn't started yet
4045 * Error if the user doesn't have super-user credentials
4047 * Error if the struct setsprefs is too large or if it multiplied
4048 * by the number of servers is too large
4050 * \post set the sprefs using the afs_setsprefs() function
4052 DECL_PIOCTL(PSetSPrefs)
4054 struct setspref *ssp;
4058 AFS_STATCNT(PSetSPrefs);
4060 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4061 return EIO; /* Inappropriate ioctl for device */
4063 if (!afs_osi_suser(*acred))
4066 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4067 * of arrays. But, i'm not quite brave enough to change it yet. */
4069 ainSize = ain->remaining;
4071 if (ainSize < sizeof(struct setspref))
4074 ssp = (struct setspref *)ainPtr;
4075 if (ainSize < (sizeof(struct setspref)
4076 + sizeof(struct spref) * (ssp->num_servers-1)))
4079 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4080 (ssp->flags & DBservers));
4085 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4087 * \param[in] ain the server preferences to be set
4088 * \param[out] aout not in use
4090 * \retval EIO Error if the afs daemon hasn't started yet
4091 * \retval EACCES Error if the user doesn't have super-user credentials
4093 * \post set the server preferences, calling a function
4095 * \notes this may only be performed by the local root user.
4097 DECL_PIOCTL(PSetSPrefs33)
4099 AFS_STATCNT(PSetSPrefs);
4100 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4101 return EIO; /* Inappropriate ioctl for device */
4104 if (!afs_osi_suser(*acred))
4107 afs_setsprefs((struct spref *)afs_pd_where(ain),
4108 afs_pd_remaining(ain) / sizeof(struct spref),
4114 * VIOC_GETSPREFS (43) - Get server ranks
4118 * \param[in] ain the server preferences to get
4119 * \param[out] aout the server preferences information
4121 * \retval EIO Error if the afs daemon hasn't started yet
4122 * \retval ENOENT Error if the sprefrequest is too large
4124 * \post Get the sprefs
4127 * in the hash table of server structs, all servers with the same
4128 * IP address; will be on the same overflow chain; This could be
4129 * sped slightly in some circumstances by having it cache the
4130 * immediately previous slot in the hash table and some
4131 * supporting information; Only reports file servers now.
4133 DECL_PIOCTL(PGetSPrefs)
4135 struct sprefrequest spin; /* input */
4136 struct sprefinfo *spout; /* output */
4137 struct spref *srvout; /* one output component */
4138 int i, j; /* counters for hash table traversal */
4139 struct server *srvr; /* one of CM's server structs */
4141 int vlonly; /* just return vlservers ? */
4144 AFS_STATCNT(PGetSPrefs);
4145 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4146 return EIO; /* Inappropriate ioctl for device */
4148 /* Work out from the size whether we've got a new, or old, style pioctl */
4149 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4150 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4155 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4157 vlonly = (spin.flags & DBservers);
4160 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4161 * quite brave enough to tackle it yet ...
4164 /* struct sprefinfo includes 1 server struct... that size gets added
4165 * in during the loop that follows.
4167 spout = afs_pd_inline(aout,
4168 sizeof(struct sprefinfo) - sizeof(struct spref));
4169 spout->next_offset = spin.offset;
4170 spout->num_servers = 0;
4171 srvout = spout->servers;
4173 ObtainReadLock(&afs_xserver);
4174 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4175 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4176 if (spin.offset > (unsigned short)i) {
4177 continue; /* catch up to where we left off */
4179 spout->next_offset++;
4182 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4183 || (sa->sa_portal == AFS_FSPORT);
4185 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4186 /* only report ranks for vl servers */
4190 /* Check we've actually got the space we're about to use */
4191 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4192 ReleaseReadLock(&afs_xserver); /* no more room! */
4196 srvout->host.s_addr = sa->sa_ip;
4197 srvout->rank = sa->sa_iprank;
4198 spout->num_servers++;
4202 ReleaseReadLock(&afs_xserver);
4204 spout->next_offset = 0; /* start over from the beginning next time */
4209 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4210 int afs_NFSRootOnly = 1;
4212 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4217 * an integer containing the desired exportee flags
4219 * an integer containing the current exporter flags
4221 * \retval ENODEV Error if the exporter doesn't exist
4222 * \retval EACCES Error if the user doesn't have super-user credentials
4225 * Changes the state of various values to reflect the change
4226 * of the export values between nfs and afs.
4228 * \notes Legacy code obtained from IBM.
4230 DECL_PIOCTL(PExportAfs)
4232 afs_int32 export, newint = 0;
4233 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4234 afs_int32 rempags = 0, pagcb = 0;
4235 struct afs_exporter *exporter;
4237 AFS_STATCNT(PExportAfs);
4238 if (afs_pd_getInt(ain, &handleValue) != 0)
4240 type = handleValue >> 24;
4245 exporter = exporter_find(type);
4247 export = handleValue & 3;
4248 changestate = handleValue & 0xfff;
4249 smounts = (handleValue >> 2) & 3;
4250 pwsync = (handleValue >> 4) & 3;
4251 convmode = (handleValue >> 6) & 3;
4252 rempags = (handleValue >> 8) & 3;
4253 pagcb = (handleValue >> 10) & 3;
4255 changestate = (handleValue >> 16) & 0x1;
4256 convmode = (handleValue >> 16) & 0x2;
4257 pwsync = (handleValue >> 16) & 0x4;
4258 smounts = (handleValue >> 16) & 0x8;
4259 export = handleValue & 0xff;
4262 /* Failed finding desired exporter; */
4266 handleValue = exporter->exp_states;
4267 if (afs_pd_putInt(aout, handleValue) != 0)
4270 if (!afs_osi_suser(*acred))
4271 return EACCES; /* Only superuser can do this */
4275 exporter->exp_states |= EXP_EXPORTED;
4277 exporter->exp_states &= ~EXP_EXPORTED;
4281 exporter->exp_states |= EXP_UNIXMODE;
4283 exporter->exp_states &= ~EXP_UNIXMODE;
4287 exporter->exp_states |= EXP_PWSYNC;
4289 exporter->exp_states &= ~EXP_PWSYNC;
4293 afs_NFSRootOnly = 0;
4294 exporter->exp_states |= EXP_SUBMOUNTS;
4296 afs_NFSRootOnly = 1;
4297 exporter->exp_states &= ~EXP_SUBMOUNTS;
4302 exporter->exp_states |= EXP_CLIPAGS;
4304 exporter->exp_states &= ~EXP_CLIPAGS;
4308 exporter->exp_states |= EXP_CALLBACK;
4310 exporter->exp_states &= ~EXP_CALLBACK;
4312 handleValue = exporter->exp_states;
4313 if (afs_pd_putInt(aout, handleValue) != 0)
4317 exporter->exp_states |= EXP_EXPORTED;
4319 exporter->exp_states &= ~EXP_EXPORTED;
4321 exporter->exp_states |= EXP_UNIXMODE;
4323 exporter->exp_states &= ~EXP_UNIXMODE;
4325 exporter->exp_states |= EXP_PWSYNC;
4327 exporter->exp_states &= ~EXP_PWSYNC;
4329 afs_NFSRootOnly = 0;
4330 exporter->exp_states |= EXP_SUBMOUNTS;
4332 afs_NFSRootOnly = 1;
4333 exporter->exp_states &= ~EXP_SUBMOUNTS;
4342 * VIOC_GAG (44) - Silence Cache Manager
4346 * \param[in] ain the flags to either gag or de-gag the cache manager
4347 * \param[out] aout not in use
4349 * \retval EACCES Error if the user doesn't have super-user credentials
4351 * \post set the gag flags, then show these flags
4355 struct gaginfo *gagflags;
4357 if (!afs_osi_suser(*acred))
4360 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4361 if (gagflags == NULL)
4363 afs_showflags = gagflags->showflags;
4369 * VIOC_TWIDDLE (45) - Adjust RX knobs
4373 * \param[in] ain the previous settings of the 'knobs'
4374 * \param[out] aout not in use
4376 * \retval EACCES Error if the user doesn't have super-user credentials
4378 * \post build out the struct rxp, from a struct rx
4380 DECL_PIOCTL(PTwiddleRx)
4382 struct rxparams *rxp;
4384 if (!afs_osi_suser(*acred))
4387 rxp = afs_pd_inline(ain, sizeof(*rxp));
4391 if (rxp->rx_initReceiveWindow)
4392 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4393 if (rxp->rx_maxReceiveWindow)
4394 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4395 if (rxp->rx_initSendWindow)
4396 rx_initSendWindow = rxp->rx_initSendWindow;
4397 if (rxp->rx_maxSendWindow)
4398 rx_maxSendWindow = rxp->rx_maxSendWindow;
4399 if (rxp->rxi_nSendFrags)
4400 rxi_nSendFrags = rxp->rxi_nSendFrags;
4401 if (rxp->rxi_nRecvFrags)
4402 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4403 if (rxp->rxi_OrphanFragSize)
4404 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4405 if (rxp->rx_maxReceiveSize) {
4406 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4407 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4409 if (rxp->rx_MyMaxSendSize)
4410 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4416 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4420 * \param[in] ain not in use
4421 * \param[out] aout initial cache manager params
4424 * Error if the initial parameters are bigger than some PIGGYSIZE
4426 * \post return the initial cache manager parameters
4428 DECL_PIOCTL(PGetInitParams)
4430 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4433 return afs_pd_putBytes(aout, &cm_initParams,
4434 sizeof(struct cm_initparams));
4437 #ifdef AFS_SGI65_ENV
4438 /* They took crget() from us, so fake it. */
4443 cr = crdup(get_current_cred());
4444 memset(cr, 0, sizeof(cred_t));
4445 #if CELL || CELL_PREPARE
4453 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4457 * \param[in] ain not in use
4458 * \param[out] aout value of cryptall
4460 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4462 DECL_PIOCTL(PGetRxkcrypt)
4464 return afs_pd_putInt(aout, cryptall);
4468 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4472 * \param[in] ain the argument whether or not things should be encrypted
4473 * \param[out] aout not in use
4476 * Error if the user doesn't have super-user credentials
4478 * Error if the input is too big, or if the input is outside the
4479 * bounds of what it can be set to
4481 * \post set whether or not things should be encrypted
4484 * may need to be modified at a later date to take into account
4485 * other values for cryptall (beyond true or false)
4487 DECL_PIOCTL(PSetRxkcrypt)
4491 if (!afs_osi_suser(*acred))
4493 if (afs_pd_getInt(ain, &tmpval) != 0)
4495 /* if new mappings added later this will need to be changed */
4496 if (tmpval != 0 && tmpval != 1)
4502 #ifdef AFS_NEED_CLIENTCONTEXT
4504 * Create new credentials to correspond to a remote user with given
4505 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4506 * provide pioctl (and other) services to foreign clients (i.e. nfs
4507 * clients) by using this call to `become' the client.
4510 #define PIOCTL_HEADER 6
4512 HandleClientContext(struct afs_ioctl *ablob, int *com,
4513 afs_ucred_t **acred, afs_ucred_t *credp)
4516 afs_uint32 hostaddr;
4517 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4518 struct afs_exporter *exporter, *outexporter;
4519 afs_ucred_t *newcred;
4520 struct unixuser *au;
4521 afs_uint32 comp = *com & 0xff00;
4523 #if defined(AFS_SUN510_ENV)
4527 #if defined(AFS_SGIMP_ENV)
4528 osi_Assert(ISAFS_GLOCK());
4530 AFS_STATCNT(HandleClientContext);
4531 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4532 /* Must at least include the PIOCTL_HEADER header words
4533 * required by the protocol */
4534 return EINVAL; /* Too small to be good */
4536 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4537 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4539 osi_FreeLargeSpace(inData);
4543 /* Extract information for remote user */
4544 hostaddr = *((afs_uint32 *) ain);
4545 ain += sizeof(hostaddr);
4546 uid = *((afs_uint32 *) ain);
4548 g0 = *((afs_uint32 *) ain);
4550 g1 = *((afs_uint32 *) ain);
4552 *com = *((afs_uint32 *) ain);
4553 ain += sizeof(afs_int32);
4554 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4557 * Of course, one must be root for most of these functions, but
4558 * we'll allow (for knfs) you to set things if the pag is 0 and
4559 * you're setting tokens or unlogging.
4562 if (!afs_osi_suser(credp)) {
4563 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4564 /* Since SGI's suser() returns explicit failure after the call.. */
4567 /* check for acceptable opcodes for normal folks, which are, so far,
4568 * get/set tokens, sysname, and unlog.
4570 if (i != 9 && i != 3 && i != 38 && i != 8) {
4571 osi_FreeLargeSpace(inData);
4576 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4577 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4578 osi_FreeLargeSpace(inData);
4581 * We map uid 0 to nobody to match the mapping that the nfs
4582 * server does and to ensure that the suser() calls in the afs
4583 * code fails for remote client roots.
4585 uid = afs_nobody; /* NFS_NOBODY == -2 */
4589 #ifdef AFS_AIX41_ENV
4592 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4593 #ifdef AFS_AIX51_ENV
4594 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4595 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4596 #elif defined(AFS_LINUX26_ENV)
4597 # ifdef AFS_LINUX26_ONEGROUP_ENV
4598 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4599 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4600 h = ((g0-0x3f00) >> 14);
4601 h = ((g1-0x3f00) >> 14) + h + h + h;
4602 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4604 afs_set_cr_group_info(newcred, groups_alloc(2));
4605 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4606 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4608 #elif defined(AFS_SUN510_ENV)
4611 crsetgroups(newcred, 2, gids);
4613 newcred->cr_groups[0] = g0;
4614 newcred->cr_groups[1] = g1;
4617 newcred->cr_ngrps = 2;
4618 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4619 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4620 newcred->cr_ngroups = 2;
4622 for (i = 2; i < NGROUPS; i++)
4623 newcred->cr_groups[i] = NOGROUP;
4626 if (!(exporter = exporter_find(exporter_type))) {
4627 /* Exporter wasn't initialized or an invalid exporter type */
4631 if (exporter->exp_states & EXP_PWSYNC) {
4632 if (uid != afs_cr_uid(credp)) {
4634 return ENOEXEC; /* XXX Find a better errno XXX */
4637 afs_set_cr_uid(newcred, uid); /* Only temporary */
4638 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4639 /* The client's pag is the only unique identifier for it */
4640 afs_set_cr_uid(newcred, pag);
4642 if (!code && *com == PSETPAG) {
4643 /* Special case for 'setpag' */
4644 afs_uint32 pagvalue = genpag();
4646 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4648 * Note that we leave the 'outexporter' struct held so it won't
4651 au->exporter = outexporter;
4652 if (ablob->out_size >= 4) {
4653 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4656 afs_PutUser(au, WRITE_LOCK);
4659 return PSETPAG; /* Special return for setpag */
4661 EXP_RELE(outexporter);
4664 *com = (*com) | comp;
4667 #endif /* AFS_NEED_CLIENTCONTEXT */
4671 * VIOC_GETCPREFS (50) - Get client interface
4675 * \param[in] ain sprefrequest input
4676 * \param[out] aout spref information
4678 * \retval EIO Error if the afs daemon hasn't started yet
4679 * \retval EINVAL Error if some of the standard args aren't set
4682 * get all interface addresses and other information of the client
4685 DECL_PIOCTL(PGetCPrefs)
4687 struct sprefrequest *spin; /* input */
4688 struct sprefinfo *spout; /* output */
4689 struct spref *srvout; /* one output component */
4693 AFS_STATCNT(PGetCPrefs);
4694 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4695 return EIO; /* Inappropriate ioctl for device */
4697 spin = afs_pd_inline(ain, sizeof(*spin));
4701 /* Output spout relies on writing past the end of arrays. It's horrible,
4702 * but I'm not quite brave enough to tackle it yet */
4703 spout = (struct sprefinfo *)aout->ptr;
4705 maxNumber = spin->num_servers; /* max addrs this time */
4706 srvout = spout->servers;
4708 ObtainReadLock(&afs_xinterface);
4710 /* copy out the client interface information from the
4711 * kernel data structure "interface" to the output buffer
4713 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4714 && (j < maxNumber); i++, j++, srvout++)
4715 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4717 spout->num_servers = j;
4718 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4720 if (i >= afs_cb_interface.numberOfInterfaces)
4721 spout->next_offset = 0; /* start from beginning again */
4723 spout->next_offset = spin->offset + j;
4725 ReleaseReadLock(&afs_xinterface);
4730 * VIOC_SETCPREFS (51) - Set client interface
4734 * \param[in] ain the interfaces you want set
4735 * \param[out] aout not in use
4737 * \retval EIO Error if the afs daemon hasn't started yet
4738 * \retval EINVAL Error if the input is too large for the struct
4739 * \retval ENOMEM Error if there are too many servers
4741 * \post set the callbak interfaces addresses to those of the hosts
4743 DECL_PIOCTL(PSetCPrefs)
4747 struct setspref *sin;
4750 AFS_STATCNT(PSetCPrefs);
4751 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4752 return EIO; /* Inappropriate ioctl for device */
4754 /* Yuck. Input to this function relies on reading past the end of
4755 * structures. Bodge it for now.
4758 ainSize = ain->remaining;
4760 sin = (struct setspref *)ainPtr;
4762 if (ainSize < sizeof(struct setspref))
4764 #if 0 /* num_servers is unsigned */
4765 if (sin->num_servers < 0)
4768 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4771 ObtainWriteLock(&afs_xinterface, 412);
4772 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4773 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4774 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4776 ReleaseWriteLock(&afs_xinterface);
4781 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4786 * the last part of a path to a mount point, which tells us what to flush
4791 * Error if some of the initial arguments aren't set
4793 * Error if the initial argument for the mount point isn't a directory
4795 * Error if the dcache entry isn't set
4798 * remove all of the mount data from the dcache regarding a
4799 * certain mount point
4801 DECL_PIOCTL(PFlushMount)
4806 struct VenusFid tfid;
4809 struct sysname_info sysState;
4810 afs_size_t offset, len;
4812 AFS_STATCNT(PFlushMount);
4816 if (afs_pd_getStringPtr(ain, &mount) != 0)
4819 code = afs_VerifyVCache(avc, areq);
4822 if (vType(avc) != VDIR) {
4825 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4828 Check_AtSys(avc, mount, &sysState, areq);
4829 ObtainReadLock(&tdc->lock);
4831 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4832 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4833 ReleaseReadLock(&tdc->lock);
4834 afs_PutDCache(tdc); /* we're done with the data */
4835 bufp = sysState.name;
4839 tfid.Cell = avc->f.fid.Cell;
4840 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4841 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4842 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4844 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4850 if (tvc->mvstat != 1) {
4855 #ifdef AFS_BOZONLOCK_ENV
4856 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4858 ObtainWriteLock(&tvc->lock, 649);
4859 ObtainWriteLock(&afs_xcbhash, 650);
4860 afs_DequeueCallback(tvc);
4861 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4862 ReleaseWriteLock(&afs_xcbhash);
4863 /* now find the disk cache entries */
4864 afs_TryToSmush(tvc, *acred, 1);
4865 osi_dnlc_purgedp(tvc);
4866 if (tvc->linkData && !(tvc->f.states & CCore)) {
4867 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4868 tvc->linkData = NULL;
4870 ReleaseWriteLock(&tvc->lock);
4871 #ifdef AFS_BOZONLOCK_ENV
4872 afs_BozonUnlock(&tvc->pvnLock, tvc);
4876 if (sysState.allocked)
4877 osi_FreeLargeSpace(bufp);
4882 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4886 * \param[in] ain the flags that control which stats to use
4887 * \param[out] aout not in use
4889 * \retval EACCES Error if the user doesn't have super-user credentials
4890 * \retval EINVAL Error if the flag input is too long
4893 * either enable process RPCStats, disable process RPCStats,
4894 * or clear the process RPCStats
4896 DECL_PIOCTL(PRxStatProc)
4900 if (!afs_osi_suser(*acred))
4903 if (afs_pd_getInt(ain, &flags) != 0)
4906 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4909 if (flags & AFSCALL_RXSTATS_ENABLE) {
4910 rx_enableProcessRPCStats();
4912 if (flags & AFSCALL_RXSTATS_DISABLE) {
4913 rx_disableProcessRPCStats();
4915 if (flags & AFSCALL_RXSTATS_CLEAR) {
4916 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4923 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4927 * \param[in] ain the flags that control which statistics to use
4928 * \param[out] aout not in use
4930 * \retval EACCES Error if the user doesn't have super-user credentials
4931 * \retval EINVAL Error if the flag input is too long
4934 * either enable peer RPCStatws, disable peer RPCStats,
4935 * or clear the peer RPCStats
4937 DECL_PIOCTL(PRxStatPeer)
4941 if (!afs_osi_suser(*acred))
4944 if (afs_pd_getInt(ain, &flags) != 0)
4947 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4950 if (flags & AFSCALL_RXSTATS_ENABLE) {
4951 rx_enablePeerRPCStats();
4953 if (flags & AFSCALL_RXSTATS_DISABLE) {
4954 rx_disablePeerRPCStats();
4956 if (flags & AFSCALL_RXSTATS_CLEAR) {
4957 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4962 DECL_PIOCTL(PPrefetchFromTape)
4966 struct afs_conn *tc;
4967 struct rx_call *tcall;
4968 struct AFSVolSync tsync;
4969 struct AFSFetchStatus OutStatus;
4970 struct AFSCallBack CallBack;
4971 struct VenusFid tfid;
4974 struct rx_connection *rxconn;
4976 AFS_STATCNT(PPrefetchFromTape);
4980 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4982 Fid = &avc->f.fid.Fid;
4984 tfid.Cell = avc->f.fid.Cell;
4985 tfid.Fid.Volume = Fid->Volume;
4986 tfid.Fid.Vnode = Fid->Vnode;
4987 tfid.Fid.Unique = Fid->Unique;
4989 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4991 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4992 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4995 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4996 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4999 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5003 tcall = rx_NewCall(rxconn);
5005 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
5008 rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
5010 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
5012 code = rx_EndCall(tcall, code);
5016 } while (afs_Analyze
5017 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
5018 SHARED_LOCK, NULL));
5019 /* This call is done only to have the callback things handled correctly */
5020 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
5026 return afs_pd_putInt(aout, outval);
5032 struct afs_conn *tc;
5034 struct FsCmdInputs *Inputs;
5035 struct FsCmdOutputs *Outputs;
5036 struct VenusFid tfid;
5038 struct rx_connection *rxconn;
5043 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
5047 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
5048 if (Outputs == NULL)
5053 Fid = &avc->f.fid.Fid;
5055 tfid.Cell = avc->f.fid.Cell;
5056 tfid.Fid.Volume = Fid->Volume;
5057 tfid.Fid.Vnode = Fid->Vnode;
5058 tfid.Fid.Unique = Fid->Unique;
5060 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5061 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5062 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5066 if (Inputs->command) {
5068 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5072 RXAFS_FsCmd(rxconn, Fid, Inputs,
5073 (struct FsCmdOutputs *)aout);
5077 } while (afs_Analyze
5078 (tc, rxconn, code, &tvc->f.fid, areq,
5079 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5080 /* This call is done to have the callback things handled correctly */
5081 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5082 } else { /* just a status request, return also link data */
5084 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5085 Outputs->chars[0] = 0;
5086 if (vType(tvc) == VLNK) {
5087 ObtainWriteLock(&tvc->lock, 555);
5088 if (afs_HandleLink(tvc, areq) == 0)
5089 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5090 ReleaseWriteLock(&tvc->lock);
5099 DECL_PIOCTL(PNewUuid)
5101 /*AFS_STATCNT(PNewUuid); */
5102 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5103 return EIO; /* Inappropriate ioctl for device */
5105 if (!afs_osi_suser(*acred))
5108 ObtainWriteLock(&afs_xinterface, 555);
5109 afs_uuid_create(&afs_cb_interface.uuid);
5110 ReleaseWriteLock(&afs_xinterface);
5111 ForceAllNewConnections();
5115 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5117 DECL_PIOCTL(PSetCachingThreshold)
5119 afs_int32 getting = 1;
5120 afs_int32 setting = 1;
5121 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5123 if (afs_pd_getInt(ain, &threshold) != 0)
5129 if (setting == 0 && getting == 0)
5133 * If setting, set first, and return the value now in effect
5136 if (!afs_osi_suser(*acred))
5138 cache_bypass_threshold = threshold;
5139 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5140 /* TODO: move to separate pioctl, or enhance pioctl */
5141 if (threshold == AFS_CACHE_BYPASS_DISABLED)
5142 cache_bypass_strategy = NEVER_BYPASS_CACHE;
5143 else if (!threshold)
5144 cache_bypass_strategy = ALWAYS_BYPASS_CACHE;
5146 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5149 /* Return the current size threshold */
5151 return afs_pd_putInt(aout, cache_bypass_threshold);
5156 #endif /* defined(AFS_CACHE_BYPASS) */
5158 DECL_PIOCTL(PCallBackAddr)
5161 afs_uint32 addr, code;
5165 struct afs_conn *tc;
5167 struct unixuser *tu;
5168 struct srvAddr **addrs;
5169 struct rx_connection *rxconn;
5171 /*AFS_STATCNT(PCallBackAddr); */
5172 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5173 return EIO; /* Inappropriate ioctl for device */
5175 if (!afs_osi_suser(acred))
5178 if (afs_pd_getInt(ain, &addr) != 0)
5181 ObtainReadLock(&afs_xinterface);
5182 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5183 if (afs_cb_interface.addr_in[i] == addr)
5187 ReleaseWriteLock(&afs_xinterface);
5189 if (afs_cb_interface.addr_in[i] != addr)
5192 ObtainReadLock(&afs_xserver); /* Necessary? */
5193 ObtainReadLock(&afs_xsrvAddr);
5196 for (i = 0; i < NSERVERS; i++) {
5197 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5202 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5203 osi_Assert(addrs != NULL);
5205 for (i = 0; i < NSERVERS; i++) {
5206 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5207 if (j >= srvAddrCount)
5213 ReleaseReadLock(&afs_xsrvAddr);
5214 ReleaseReadLock(&afs_xserver);
5216 for (i = 0; i < j; i++) {
5222 /* vlserver has no callback conn */
5223 if (sa->sa_portal == AFS_VLPORT) {
5227 if (!ts->cell) /* not really an active server, anyway, it must */
5228 continue; /* have just been added by setsprefs */
5230 /* get a connection, even if host is down; bumps conn ref count */
5231 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5232 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5233 1 /*force */ , 1 /*create */ , SHARED_LOCK, 0, &rxconn);
5234 afs_PutUser(tu, SHARED_LOCK);
5238 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5239 if (sa->sa_flags & SRVADDR_ISDOWN) {
5240 rx_SetConnDeadTime(rxconn, 3);
5242 #ifdef RX_ENABLE_LOCKS
5244 #endif /* RX_ENABLE_LOCKS */
5245 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5246 #ifdef RX_ENABLE_LOCKS
5248 #endif /* RX_ENABLE_LOCKS */
5250 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5251 } /* Outer loop over addrs */
5252 #endif /* UKERNEL */
5256 DECL_PIOCTL(PDiscon)
5258 static afs_int32 mode = 1; /* Start up in 'off' */
5259 afs_int32 force = 0;
5262 struct vrequest lreq;
5264 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5265 if (!afs_osi_suser(*acred))
5269 mode = flags[0] - 1;
5271 afs_ConflictPolicy = flags[1] - 1;
5275 /* Fake InitReq support for UID override */
5276 memset(&lreq, 0, sizeof(lreq));
5277 lreq.uid = flags[3];
5278 areq = &lreq; /* override areq we got */
5282 * All of these numbers are hard coded in fs.c. If they
5283 * change here, they should change there and vice versa
5286 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5287 if (!AFS_IS_DISCONNECTED) {
5288 ObtainWriteLock(&afs_discon_lock, 999);
5289 afs_DisconGiveUpCallbacks();
5290 afs_RemoveAllConns();
5291 afs_is_disconnected = 1;
5292 afs_is_discon_rw = 1;
5293 ReleaseWriteLock(&afs_discon_lock);
5296 case 1: /* Fully connected, ("online" mode). */
5297 ObtainWriteLock(&afs_discon_lock, 998);
5300 afs_MarkAllServersUp();
5301 code = afs_ResyncDisconFiles(areq, *acred);
5304 if (code && !force) {
5305 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5306 "Please retry or use \"force\".\n");
5310 afs_DisconDiscardAll(*acred);
5312 afs_ClearAllStatdFlag();
5313 afs_is_disconnected = 0;
5314 afs_is_discon_rw = 0;
5315 afs_warnuser("\nSync succeeded. You are back online.\n");
5318 ReleaseWriteLock(&afs_discon_lock);
5330 return afs_pd_putInt(aout, mode);
5333 #define MAX_PIOCTL_TOKENS 10
5335 DECL_PIOCTL(PSetTokens2)
5338 int i, cellNum, primaryFlag;
5340 struct unixuser *tu;
5341 struct vrequest treq;
5342 struct ktc_setTokenData tokenSet;
5343 struct ktc_tokenUnion decodedToken;
5345 memset(&tokenSet, 0, sizeof(tokenSet));
5347 AFS_STATCNT(PSetTokens2);
5348 if (!afs_resourceinit_flag)
5351 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5353 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5354 afs_pd_xdrEnd(ain, &xdrs);
5358 afs_pd_xdrEnd(ain, &xdrs);
5360 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5361 * process from using up the whole of the kernel memory by allocating
5364 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5365 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5369 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5371 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5375 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5376 #if defined(AFS_LINUX26_ENV)
5377 afs_ucred_t *old_cred = *acred;
5379 if (_settok_setParentPag(acred) == 0) {
5380 #if defined(AFS_LINUX26_ENV)
5381 /* setpag() may have changed our credentials */
5385 afs_InitReq(&treq, *acred);
5390 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5391 /* Free any tokens that we've already got */
5392 afs_FreeTokens(&tu->tokens);
5394 /* Iterate across the set of tokens we've received, and stuff them
5395 * into this user's tokenJar
5397 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5398 xdrmem_create(&xdrs,
5399 tokenSet.tokens.tokens_val[i].token_opaque_val,
5400 tokenSet.tokens.tokens_val[i].token_opaque_len,
5403 memset(&decodedToken, 0, sizeof(decodedToken));
5404 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5412 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5413 /* This is untidy - the old token interface supported passing
5414 * the primaryFlag as part of the token interface. Current
5415 * OpenAFS userland never sets this, but it's specified as being
5416 * part of the XG interface, so we should probably still support
5417 * it. Rather than add it to our AddToken interface, just handle
5420 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5421 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5425 /* XXX - We should think more about destruction here. It's likely that
5426 * there is key material in what we're about to throw away, which
5427 * we really should zero out before giving back to the allocator */
5428 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5431 tu->states |= UHasTokens;
5432 tu->states &= ~UTokensBad;
5433 afs_SetPrimary(tu, primaryFlag);
5434 tu->tokenTime = osi_Time();
5436 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5439 afs_ResetUserConns(tu);
5440 afs_PutUser(tu, WRITE_LOCK);
5445 DECL_PIOCTL(PGetTokens2)
5447 struct cell *cell = NULL;
5448 struct unixuser *tu = NULL;
5450 char *cellName = NULL;
5455 struct ktc_setTokenData tokenSet;
5457 AFS_STATCNT(PGetTokens);
5458 if (!afs_resourceinit_flag)
5461 memset(&tokenSet, 0, sizeof(tokenSet));
5463 /* No input data - return tokens for primary cell */
5464 /* 4 octets of data is an iterator count */
5465 /* Otherwise, treat as string & return tokens for that cell name */
5467 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5468 /* Integer iterator - return tokens for the n'th cell found for user */
5469 if (afs_pd_getInt(ain, &iterator) != 0)
5471 tu = getNthCell(areq->uid, iterator);
5473 if (afs_pd_remaining(ain) > 0) {
5474 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5479 code = _settok_tokenCell(cellName, &cellNum, NULL);
5482 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5489 if (!(tu->states & UHasTokens)
5490 || !afs_HasValidTokens(tu->tokens, now)) {
5491 tu->states |= (UTokensBad | UNeedsReset);
5492 afs_PutUser(tu, READ_LOCK);
5496 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5500 cell = afs_GetCell(tu->cell, READ_LOCK);
5501 tokenSet.cell = cell->cellName;
5502 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5503 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5507 afs_pd_xdrEnd(aout, &xdrs);
5510 tokenSet.cell = NULL;
5513 afs_PutUser(tu, READ_LOCK);
5515 afs_PutCell(cell, READ_LOCK);
5516 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5521 DECL_PIOCTL(PNFSNukeCreds)
5525 struct unixuser *tu;
5527 AFS_STATCNT(PUnlog);
5528 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5529 return EIO; /* Inappropriate ioctl for device */
5531 if (afs_pd_getUint(ain, &addr) != 0)
5534 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5535 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5536 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5537 afs_PutUser(tu, SHARED_LOCK);
5540 afs_PutUser(tu, SHARED_LOCK);
5541 } else if (!afs_osi_suser(acred)) {
5545 ObtainWriteLock(&afs_xuser, 227);
5546 for (i = 0; i < NUSERS; i++) {
5547 for (tu = afs_users[i]; tu; tu = tu->next) {
5548 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5550 ReleaseWriteLock(&afs_xuser);
5552 afs_LockUser(tu, WRITE_LOCK, 367);
5554 tu->states &= ~UHasTokens;
5555 afs_FreeTokens(&tu->tokens);
5556 afs_ResetUserConns(tu);
5557 afs_PutUser(tu, WRITE_LOCK);
5558 ObtainWriteLock(&afs_xuser, 228);
5560 /* set the expire times to 0, causes
5561 * afs_GCUserData to remove this entry
5564 #endif /* UKERNEL */
5568 ReleaseWriteLock(&afs_xuser);