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(PGetVnodeXStatus);
281 DECL_PIOCTL(PGetVnodeXStatus2);
282 DECL_PIOCTL(PSetSysName);
283 DECL_PIOCTL(PSetSPrefs);
284 DECL_PIOCTL(PSetSPrefs33);
285 DECL_PIOCTL(PGetSPrefs);
286 DECL_PIOCTL(PExportAfs);
288 DECL_PIOCTL(PTwiddleRx);
289 DECL_PIOCTL(PGetInitParams);
290 DECL_PIOCTL(PGetRxkcrypt);
291 DECL_PIOCTL(PSetRxkcrypt);
292 DECL_PIOCTL(PGetCPrefs);
293 DECL_PIOCTL(PSetCPrefs);
294 DECL_PIOCTL(PFlushMount);
295 DECL_PIOCTL(PRxStatProc);
296 DECL_PIOCTL(PRxStatPeer);
297 DECL_PIOCTL(PPrefetchFromTape);
299 DECL_PIOCTL(PCallBackAddr);
300 DECL_PIOCTL(PDiscon);
301 DECL_PIOCTL(PNFSNukeCreds);
302 DECL_PIOCTL(PNewUuid);
303 DECL_PIOCTL(PPrecache);
304 DECL_PIOCTL(PGetPAG);
305 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
306 DECL_PIOCTL(PSetCachingThreshold);
310 * A macro that says whether we're going to need HandleClientContext().
311 * This is currently used only by the nfs translator.
313 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
314 #define AFS_NEED_CLIENTCONTEXT
317 /* Prototypes for private routines */
318 #ifdef AFS_NEED_CLIENTCONTEXT
319 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
323 int HandleIoctl(struct vcache *avc, afs_int32 acom,
324 struct afs_ioctl *adata);
325 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
326 struct afs_ioctl *ablob, int afollow,
327 afs_ucred_t **acred);
328 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
331 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
332 struct afs_pdata *, struct afs_pdata *,
335 static pioctlFunction VpioctlSw[] = {
340 PGetVolumeStatus, /* 4 */
341 PSetVolumeStatus, /* 5 */
346 PCheckServers, /* 10 */
347 PCheckVolNames, /* 11 */
349 PBogus, /* 13 -- used to be quick check time */
350 PFindVolume, /* 14 */
351 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
352 PBogus, /* 16 -- used to be testing code */
353 PNoop, /* 17 -- used to be enable group */
354 PNoop, /* 18 -- used to be disable group */
355 PBogus, /* 19 -- used to be list group */
356 PViceAccess, /* 20 */
357 PUnlog, /* 21 -- unlog *is* unpag in this system */
358 PGetFID, /* 22 -- get file ID */
359 PBogus, /* 23 -- used to be waitforever */
360 PSetCacheSize, /* 24 */
361 PRemoveCallBack, /* 25 -- flush only the callback */
364 PRemoveMount, /* 28 -- delete mount point */
365 PNewStatMount, /* 29 -- new style mount point stat */
366 PGetFileCell, /* 30 -- get cell name for input file */
367 PGetWSCell, /* 31 -- get cell name for workstation */
368 PMariner, /* 32 - set/get mariner host */
369 PGetUserCell, /* 33 -- get cell name for user */
370 PBogus, /* 34 -- Enable/Disable logging */
371 PGetCellStatus, /* 35 */
372 PSetCellStatus, /* 36 */
373 PFlushVolumeData, /* 37 -- flush all data from a volume */
374 PSetSysName, /* 38 - Set system name */
375 PExportAfs, /* 39 - Export Afs to remote nfs clients */
376 PGetCacheSize, /* 40 - get cache size and usage */
377 PGetVnodeXStatus, /* 41 - get vcache's special status */
378 PSetSPrefs33, /* 42 - Set CM Server preferences... */
379 PGetSPrefs, /* 43 - Get CM Server preferences... */
380 PGag, /* 44 - turn off/on all CM messages */
381 PTwiddleRx, /* 45 - adjust some RX params */
382 PSetSPrefs, /* 46 - Set CM Server preferences... */
383 PStoreBehind, /* 47 - set degree of store behind to be done */
384 PGCPAGs, /* 48 - disable automatic pag gc-ing */
385 PGetInitParams, /* 49 - get initial cm params */
386 PGetCPrefs, /* 50 - get client interface addresses */
387 PSetCPrefs, /* 51 - set client interface addresses */
388 PFlushMount, /* 52 - flush mount symlink data */
389 PRxStatProc, /* 53 - control process RX statistics */
390 PRxStatPeer, /* 54 - control peer RX statistics */
391 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
392 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
393 PBogus, /* 57 -- arla: set file prio */
394 PBogus, /* 58 -- arla: fallback getfh */
395 PBogus, /* 59 -- arla: fallback fhopen */
396 PBogus, /* 60 -- arla: controls xfsdebug */
397 PBogus, /* 61 -- arla: controls arla debug */
398 PBogus, /* 62 -- arla: debug interface */
399 PBogus, /* 63 -- arla: print xfs status */
400 PBogus, /* 64 -- arla: force cache check */
401 PBogus, /* 65 -- arla: break callback */
402 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
403 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
404 PBogus, /* 68 -- arla: fetch stats */
405 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
408 static pioctlFunction CpioctlSw[] = {
410 PNewAlias, /* 1 -- create new cell alias */
411 PListAliases, /* 2 -- list cell aliases */
412 PCallBackAddr, /* 3 -- request addr for callback rxcon */
414 PDiscon, /* 5 -- get/set discon mode */
425 static pioctlFunction OpioctlSw[] = {
427 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
428 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
429 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
431 PNoop /* 2 -- get/set cache-bypass size threshold */
435 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
436 int afs_nobody = NFS_NOBODY;
439 HandleIoctl(struct vcache *avc, afs_int32 acom,
440 struct afs_ioctl *adata)
445 AFS_STATCNT(HandleIoctl);
447 switch (acom & 0xff) {
449 avc->f.states |= CSafeStore;
451 /* SXW - Should we force a MetaData flush for this flag setting */
454 /* case 2 used to be abort store, but this is no longer provided,
455 * since it is impossible to implement under normal Unix.
459 /* return the name of the cell this file is open on */
463 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
465 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
467 if (i > adata->out_size) {
468 /* 0 means we're not interested in the output */
469 if (adata->out_size != 0)
473 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
475 afs_PutCell(tcell, READ_LOCK);
481 case 49: /* VIOC_GETINITPARAMS */
482 if (adata->out_size < sizeof(struct cm_initparams)) {
485 AFS_COPYOUT(&cm_initParams, adata->out,
486 sizeof(struct cm_initparams), code);
498 return code; /* so far, none implemented */
502 /* For aix we don't temporarily bypass ioctl(2) but rather do our
503 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
504 * is now called from afs_gn_ioctl.
507 afs_ioctl(struct vcache *tvc, int cmd, int arg)
509 struct afs_ioctl data;
512 AFS_STATCNT(afs_ioctl);
513 if (((cmd >> 8) & 0xff) == 'V') {
514 /* This is a VICEIOCTL call */
515 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
518 error = HandleIoctl(tvc, cmd, &data);
521 /* No-op call; just return. */
525 # if defined(AFS_AIX32_ENV)
526 # if defined(AFS_AIX51_ENV)
529 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
531 # else /* __64BIT__ */
533 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
535 # endif /* __64BIT__ */
538 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
539 # endif /* AFS_AIX51_ENV */
544 # ifdef AFS_AIX51_ENV
547 } u_uap, *uap = &u_uap;
550 int ioctlDone = 0, code = 0;
552 AFS_STATCNT(afs_xioctl);
556 # ifdef AFS_AIX51_ENV
560 if (setuerror(getf(uap->fd, &fd))) {
563 if (fd->f_type == DTYPE_VNODE) {
564 /* good, this is a vnode; next see if it is an AFS vnode */
565 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
566 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
567 /* This is an AFS vnode */
568 if (((uap->com >> 8) & 0xff) == 'V') {
569 struct afs_ioctl *datap;
572 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
573 code=copyin_afs_ioctl((char *)uap->arg, datap);
575 osi_FreeSmallSpace(datap);
577 # if defined(AFS_AIX41_ENV)
580 return (setuerror(code), code);
582 code = HandleIoctl(tvc, uap->com, datap);
583 osi_FreeSmallSpace(datap);
586 # if defined(AFS_AIX41_ENV)
593 # if defined(AFS_AIX41_ENV)
595 # if defined(AFS_AIX51_ENV)
597 code = okioctl(fdes, com, arg, ext, arg2, arg3);
598 # else /* __64BIT__ */
599 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
600 # endif /* __64BIT__ */
601 # else /* !AFS_AIX51_ENV */
602 code = okioctl(fdes, com, arg, ext);
603 # endif /* AFS_AIX51_ENV */
605 # elif defined(AFS_AIX32_ENV)
606 okioctl(fdes, com, arg, ext);
609 # if defined(KERNEL_HAVE_UERROR)
612 # if !defined(AFS_AIX41_ENV)
613 return (getuerror()? -1 : u.u_ioctlrv);
615 return getuerror()? -1 : 0;
622 #elif defined(AFS_SGI_ENV)
623 # if defined(AFS_SGI65_ENV)
624 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
625 rval_t * rvalp, struct vopbd * vbds)
627 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
628 rval_t * rvalp, struct vopbd * vbds)
631 struct afs_ioctl data;
637 AFS_STATCNT(afs_ioctl);
638 if (((cmd >> 8) & 0xff) == 'V') {
639 /* This is a VICEIOCTL call */
640 error = copyin_afs_ioctl(arg, &data);
643 locked = ISAFS_GLOCK();
646 error = HandleIoctl(tvc, cmd, &data);
651 /* No-op call; just return. */
655 #elif defined(AFS_SUN5_ENV)
656 struct afs_ioctl_sys {
663 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
667 int ioctlDone = 0, code = 0;
669 AFS_STATCNT(afs_xioctl);
673 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
674 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
675 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
676 /* This is an AFS vnode */
677 if (((uap->com >> 8) & 0xff) == 'V') {
678 struct afs_ioctl *datap;
681 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
682 code=copyin_afs_ioctl((char *)uap->arg, datap);
684 osi_FreeSmallSpace(datap);
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 return ioctl(td, uap);
878 # elif defined(AFS_OBSD_ENV)
879 code = sys_ioctl(p, uap, retval);
880 # elif defined(AFS_NBSD_ENV)
881 code = sys_ioctl(p, uap, retval);
887 #elif defined(UKERNEL)
895 } *uap = (struct a *)get_user_struct()->u_ap;
898 int ioctlDone = 0, code = 0;
900 AFS_STATCNT(afs_xioctl);
905 /* first determine whether this is any sort of vnode */
906 if (fd->f_type == DTYPE_VNODE) {
907 /* good, this is a vnode; next see if it is an AFS vnode */
908 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
909 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
910 /* This is an AFS vnode */
911 if (((uap->com >> 8) & 0xff) == 'V') {
912 struct afs_ioctl *datap;
914 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
915 code=copyin_afs_ioctl((char *)uap->arg, datap);
917 osi_FreeSmallSpace(datap);
920 return (setuerror(code), code);
922 code = HandleIoctl(tvc, uap->com, datap);
923 osi_FreeSmallSpace(datap);
936 #endif /* AFS_HPUX102_ENV */
938 #if defined(AFS_SGI_ENV)
939 /* "pioctl" system call entry point; just pass argument to the parameterized
948 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
952 AFS_STATCNT(afs_pioctl);
954 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
956 # ifdef AFS_SGI64_ENV
963 #elif defined(AFS_FBSD_ENV)
965 afs_pioctl(struct thread *td, void *args, int *retval)
972 } *uap = (struct a *)args;
974 AFS_STATCNT(afs_pioctl);
975 return (afs_syscall_pioctl
976 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
979 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
981 afs_pioctl(afs_proc_t *p, void *args, int *retval)
988 } *uap = (struct a *)args;
990 AFS_STATCNT(afs_pioctl);
991 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
992 return (afs_syscall_pioctl
993 (uap->path, uap->cmd, uap->cmarg, uap->follow,
996 return (afs_syscall_pioctl
997 (uap->path, uap->cmd, uap->cmarg, uap->follow,
998 # if defined(AFS_FBSD_ENV)
1001 p->p_cred->pc_ucred));
1008 /* macro to avoid adding any more #ifdef's to pioctl code. */
1009 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1010 #define PIOCTL_FREE_CRED() crfree(credp)
1012 #define PIOCTL_FREE_CRED()
1017 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1018 rval_t *vvp, afs_ucred_t *credp)
1020 #ifdef AFS_DARWIN100_ENV
1021 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1022 int follow, afs_ucred_t *credp)
1023 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1024 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1027 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1031 struct afs_ioctl data;
1032 #ifdef AFS_NEED_CLIENTCONTEXT
1033 afs_ucred_t *tmpcred = NULL;
1035 #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)
1036 afs_ucred_t *foreigncreds = NULL;
1039 struct vnode *vp = NULL;
1040 #ifdef AFS_AIX41_ENV
1041 struct ucred *credp = crref(); /* don't free until done! */
1043 #ifdef AFS_LINUX22_ENV
1044 cred_t *credp = crref(); /* don't free until done! */
1048 AFS_STATCNT(afs_syscall_pioctl);
1050 follow = 1; /* compat. with old venus */
1051 code = copyin_afs_ioctl(cmarg, &data);
1054 #if defined(KERNEL_HAVE_UERROR)
1059 if ((com & 0xff) == PSetClientContext) {
1060 #ifdef AFS_NEED_CLIENTCONTEXT
1061 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1062 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1064 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1068 crfree(foreigncreds);
1071 #if defined(KERNEL_HAVE_UERROR)
1072 return (setuerror(code), code);
1077 #else /* AFS_NEED_CLIENTCONTEXT */
1079 #endif /* AFS_NEED_CLIENTCONTEXT */
1081 #ifdef AFS_NEED_CLIENTCONTEXT
1084 * We could have done without temporary setting the u.u_cred below
1085 * (foreigncreds could be passed as param the pioctl modules)
1086 * but calls such as afs_osi_suser() doesn't allow that since it
1087 * references u.u_cred directly. We could, of course, do something
1088 * like afs_osi_suser(cred) which, I think, is better since it
1089 * generalizes and supports multi cred environments...
1091 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1093 credp = foreigncreds;
1094 #elif defined(AFS_AIX41_ENV)
1095 tmpcred = crref(); /* XXX */
1096 crset(foreigncreds);
1097 #elif defined(AFS_HPUX101_ENV)
1098 tmpcred = p_cred(u.u_procp);
1099 set_p_cred(u.u_procp, foreigncreds);
1100 #elif defined(AFS_SGI_ENV)
1101 tmpcred = OSI_GET_CURRENT_CRED();
1102 OSI_SET_CURRENT_CRED(foreigncreds);
1105 u.u_cred = foreigncreds;
1108 #endif /* AFS_NEED_CLIENTCONTEXT */
1109 if ((com & 0xff) == 15) {
1110 /* special case prefetch so entire pathname eval occurs in helper process.
1111 * otherwise, the pioctl call is essentially useless */
1112 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1114 Prefetch(path, &data, follow,
1115 foreigncreds ? foreigncreds : credp);
1117 code = Prefetch(path, &data, follow, osi_curcred());
1120 #if defined(KERNEL_HAVE_UERROR)
1127 #ifdef AFS_AIX41_ENV
1129 lookupname(path, USR, follow, NULL, &vp,
1130 foreigncreds ? foreigncreds : credp);
1132 #ifdef AFS_LINUX22_ENV
1133 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1135 vp = (struct vnode *)dp->d_inode;
1137 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1138 #if defined(AFS_FBSD80_ENV) /* XXX check on 7x */
1141 #endif /* AFS_FBSD80_ENV */
1142 #endif /* AFS_LINUX22_ENV */
1143 #endif /* AFS_AIX41_ENV */
1147 #if defined(KERNEL_HAVE_UERROR)
1155 #if defined(AFS_SUN510_ENV)
1156 if (vp && !IsAfsVnode(vp)) {
1157 struct vnode *realvp;
1159 #ifdef AFS_SUN511_ENV
1160 (VOP_REALVP(vp, &realvp, NULL) == 0)
1162 (VOP_REALVP(vp, &realvp) == 0)
1165 struct vnode *oldvp = vp;
1173 /* now make the call if we were passed no file, or were passed an AFS file */
1174 if (!vp || IsAfsVnode(vp)) {
1175 #if defined(AFS_SUN5_ENV)
1176 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1177 #elif defined(AFS_AIX41_ENV)
1179 struct ucred *cred1, *cred2;
1182 cred1 = cred2 = foreigncreds;
1184 cred1 = cred2 = credp;
1186 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1187 if (cred1 != cred2) {
1188 /* something changed the creds */
1192 #elif defined(AFS_HPUX101_ENV)
1194 struct ucred *cred = p_cred(u.u_procp);
1195 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1197 #elif defined(AFS_SGI_ENV)
1200 credp = OSI_GET_CURRENT_CRED();
1201 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1203 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1204 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1205 #elif defined(UKERNEL)
1206 code = afs_HandlePioctl(vp, com, &data, follow,
1207 &(get_user_struct()->u_cred));
1209 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1212 #if defined(KERNEL_HAVE_UERROR)
1215 code = EINVAL; /* not in /afs */
1220 #if defined(AFS_NEED_CLIENTCONTEXT)
1222 #ifdef AFS_AIX41_ENV
1223 crset(tmpcred); /* restore original credentials */
1225 #if defined(AFS_HPUX101_ENV)
1226 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1227 #elif defined(AFS_SGI_ENV)
1228 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1229 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1230 credp = tmpcred; /* restore original credentials */
1232 osi_curcred() = tmpcred; /* restore original credentials */
1233 #endif /* AFS_HPUX101_ENV */
1234 crfree(foreigncreds);
1237 #endif /* AFS_NEED_CLIENTCONTEXT */
1239 #ifdef AFS_LINUX22_ENV
1242 #if defined(AFS_FBSD80_ENV)
1243 if (VOP_ISLOCKED(vp))
1245 #endif /* AFS_FBSD80_ENV */
1246 AFS_RELE(vp); /* put vnode back */
1250 #if defined(KERNEL_HAVE_UERROR)
1253 return (getuerror());
1259 #ifdef AFS_DARWIN100_ENV
1261 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1262 int follow, afs_ucred_t *credp)
1264 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1265 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1270 #define MAXPIOCTLTOKENLEN \
1271 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1274 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1275 struct afs_ioctl *ablob, int afollow,
1276 afs_ucred_t **acred)
1279 struct vrequest treq;
1281 afs_int32 function, device;
1282 struct afs_pdata input, output;
1283 struct afs_pdata copyInput, copyOutput;
1285 pioctlFunction *pioctlSw;
1287 struct afs_fakestat_state fakestate;
1289 memset(&input, 0, sizeof(input));
1290 memset(&output, 0, sizeof(output));
1292 avc = avp ? VTOAFS(avp) : NULL;
1293 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1294 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1295 AFS_STATCNT(HandlePioctl);
1297 code = afs_InitReq(&treq, *acred);
1301 afs_InitFakeStat(&fakestate);
1303 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1307 device = (acom & 0xff00) >> 8;
1309 case 'V': /* Original pioctls */
1310 pioctlSw = VpioctlSw;
1311 pioctlSwSize = sizeof(VpioctlSw);
1313 case 'C': /* Coordinated/common pioctls */
1314 pioctlSw = CpioctlSw;
1315 pioctlSwSize = sizeof(CpioctlSw);
1317 case 'O': /* Coordinated/common pioctls */
1318 pioctlSw = OpioctlSw;
1319 pioctlSwSize = sizeof(OpioctlSw);
1325 function = acom & 0xff;
1326 if (function >= (pioctlSwSize / sizeof(char *))) {
1331 /* Do all range checking before continuing */
1332 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1333 ablob->in_size < 0 || ablob->out_size < 0) {
1338 code = afs_pd_alloc(&input, ablob->in_size);
1342 if (ablob->in_size > 0) {
1343 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1344 input.ptr[input.remaining] = '\0';
1349 if ((function == 8 && device == 'V') ||
1350 (function == 7 && device == 'C')) { /* PGetTokens */
1351 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1353 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1359 copyOutput = output;
1362 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1363 ©Output, acred);
1365 outSize = copyOutput.ptr - output.ptr;
1367 if (code == 0 && ablob->out_size > 0) {
1368 if (outSize > ablob->out_size) {
1369 code = E2BIG; /* data wont fit in user buffer */
1370 } else if (outSize) {
1371 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1376 afs_pd_free(&input);
1377 afs_pd_free(&output);
1379 afs_PutFakeStat(&fakestate);
1380 return afs_CheckCode(code, &treq, 41);
1384 * VIOCGETFID (22) - Get file ID quickly
1388 * \param[in] ain not in use
1389 * \param[out] aout fid of requested file
1391 * \retval EINVAL Error if some of the initial arguments aren't set
1393 * \post get the file id of some file
1395 DECL_PIOCTL(PGetFID)
1397 AFS_STATCNT(PGetFID);
1400 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1406 * VIOCSETAL (1) - Set access control list
1410 * \param[in] ain the ACL being set
1411 * \param[out] aout the ACL being set returned
1413 * \retval EINVAL Error if some of the standard args aren't set
1415 * \post Changed ACL, via direct writing to the wire
1418 dummy_PSetAcl(char *ain, char *aout)
1423 DECL_PIOCTL(PSetAcl)
1426 struct afs_conn *tconn;
1427 struct AFSOpaque acl;
1428 struct AFSVolSync tsync;
1429 struct AFSFetchStatus OutStatus;
1430 struct rx_connection *rxconn;
1433 AFS_STATCNT(PSetAcl);
1437 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1439 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1440 if (acl.AFSOpaque_len > 1024)
1444 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1446 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1449 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1450 &acl, &OutStatus, &tsync);
1455 } while (afs_Analyze
1456 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1457 SHARED_LOCK, NULL));
1459 /* now we've forgotten all of the access info */
1460 ObtainWriteLock(&afs_xcbhash, 455);
1462 afs_DequeueCallback(avc);
1463 avc->f.states &= ~(CStatd | CUnique);
1464 ReleaseWriteLock(&afs_xcbhash);
1465 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1466 osi_dnlc_purgedp(avc);
1468 /* SXW - Should we flush metadata here? */
1472 int afs_defaultAsynchrony = 0;
1475 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1479 * \param[in] ain sbstruct (store behind structure) input
1480 * \param[out] aout resulting sbstruct
1483 * Error if the user doesn't have super-user credentials
1485 * Error if there isn't enough access to not check the mode bits
1488 * Changes either the default asynchrony (the amount of data that
1489 * can remain to be written when the cache manager returns control
1490 * to the user), or the asyncrony for the specified file.
1492 DECL_PIOCTL(PStoreBehind)
1494 struct sbstruct sbr;
1496 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1499 if (sbr.sb_default != -1) {
1500 if (afs_osi_suser(*acred))
1501 afs_defaultAsynchrony = sbr.sb_default;
1506 if (avc && (sbr.sb_thisfile != -1)) {
1508 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1509 avc->asynchrony = sbr.sb_thisfile;
1514 memset(&sbr, 0, sizeof(sbr));
1515 sbr.sb_default = afs_defaultAsynchrony;
1517 sbr.sb_thisfile = avc->asynchrony;
1520 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1524 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1528 * \param[in] ain not in use
1529 * \param[out] aout not in use
1531 * \retval EACCES Error if the user doesn't have super-user credentials
1533 * \post set the gcpags to GCPAGS_USERDISABLED
1535 DECL_PIOCTL(PGCPAGs)
1537 if (!afs_osi_suser(*acred)) {
1540 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1545 * VIOCGETAL (2) - Get access control list
1549 * \param[in] ain not in use
1550 * \param[out] aout the ACL
1552 * \retval EINVAL Error if some of the standard args aren't set
1553 * \retval ERANGE Error if the vnode of the file id is too large
1554 * \retval -1 Error if getting the ACL failed
1556 * \post Obtain the ACL, based on file ID
1559 * There is a hack to tell which type of ACL is being returned, checks
1560 * the top 2-bytes of the input size to judge what type of ACL it is,
1561 * only for dfs xlator ACLs
1563 DECL_PIOCTL(PGetAcl)
1565 struct AFSOpaque acl;
1566 struct AFSVolSync tsync;
1567 struct AFSFetchStatus OutStatus;
1569 struct afs_conn *tconn;
1571 struct rx_connection *rxconn;
1574 AFS_STATCNT(PGetAcl);
1577 Fid.Volume = avc->f.fid.Fid.Volume;
1578 Fid.Vnode = avc->f.fid.Fid.Vnode;
1579 Fid.Unique = avc->f.fid.Fid.Unique;
1580 if (avc->f.states & CForeign) {
1582 * For a dfs xlator acl we have a special hack so that the
1583 * xlator will distinguish which type of acl will return. So
1584 * we currently use the top 2-bytes (vals 0-4) to tell which
1585 * type of acl to bring back. Horrible hack but this will
1586 * cause the least number of changes to code size and interfaces.
1588 if (Fid.Vnode & 0xc0000000)
1590 Fid.Vnode |= (ain->remaining << 30);
1592 acl.AFSOpaque_val = aout->ptr;
1594 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1596 acl.AFSOpaque_val[0] = '\0';
1597 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1599 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1604 } while (afs_Analyze
1605 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1606 SHARED_LOCK, NULL));
1609 if (acl.AFSOpaque_len == 0)
1610 afs_pd_skip(aout, 1); /* leave the NULL */
1612 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1618 * PNoop returns success. Used for functions which are not implemented
1619 * or are no longer in use.
1623 * \retval Always returns success
1626 * Functions involved in this:
1627 * 17 (VIOCENGROUP) -- used to be enable group;
1628 * 18 (VIOCDISGROUP) -- used to be disable group;
1629 * 2 (?) -- get/set cache-bypass size threshold
1638 * PBogus returns fail. Used for functions which are not implemented or
1639 * are no longer in use.
1643 * \retval EINVAL Always returns this value
1646 * Functions involved in this:
1652 * 13 (VIOCGETTIME) -- used to be quick check time;
1653 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1654 * 16 (VIOCNOP) -- used to be testing code;
1655 * 19 (VIOCLISTGROUPS) -- used to be list group;
1656 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1657 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1658 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1659 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1660 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1661 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1662 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1663 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1664 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1665 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1666 * 68 (?) -- arla: fetch stats;
1670 AFS_STATCNT(PBogus);
1675 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1679 * \param[in] ain not in use (avc used to pass in file id)
1680 * \param[out] aout cell name
1682 * \retval EINVAL Error if some of the standard args aren't set
1683 * \retval ESRCH Error if the file isn't part of a cell
1685 * \post Get a cell based on a passed in file id
1687 DECL_PIOCTL(PGetFileCell)
1691 AFS_STATCNT(PGetFileCell);
1694 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1698 if (afs_pd_putString(aout, tcell->cellName) != 0)
1701 afs_PutCell(tcell, READ_LOCK);
1706 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1710 * \param[in] ain not in use
1711 * \param[out] aout cell name
1714 * Error if the afs daemon hasn't started yet
1716 * Error if the machine isn't part of a cell, for whatever reason
1718 * \post Get the primary cell that the machine is a part of.
1720 DECL_PIOCTL(PGetWSCell)
1722 struct cell *tcell = NULL;
1724 AFS_STATCNT(PGetWSCell);
1725 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1726 return EIO; /* Inappropriate ioctl for device */
1728 tcell = afs_GetPrimaryCell(READ_LOCK);
1729 if (!tcell) /* no primary cell? */
1732 if (afs_pd_putString(aout, tcell->cellName) != 0)
1734 afs_PutCell(tcell, READ_LOCK);
1739 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1743 * \param[in] ain not in use (user id found via areq)
1744 * \param[out] aout cell name
1747 * Error if the user id doesn't have a primary cell specified
1749 * \post Get the primary cell for a certain user, based on the user's uid
1751 DECL_PIOCTL(PGetUserCell)
1754 struct unixuser *tu;
1757 AFS_STATCNT(PGetUserCell);
1758 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1759 return EIO; /* Inappropriate ioctl for device */
1761 /* return the cell name of the primary cell for this user */
1762 i = UHash(areq->uid);
1763 ObtainWriteLock(&afs_xuser, 224);
1764 for (tu = afs_users[i]; tu; tu = tu->next) {
1765 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1767 ReleaseWriteLock(&afs_xuser);
1768 afs_LockUser(tu, READ_LOCK, 0);
1773 tcell = afs_GetCell(tu->cell, READ_LOCK);
1774 afs_PutUser(tu, READ_LOCK);
1778 if (afs_pd_putString(aout, tcell->cellName) != 0)
1780 afs_PutCell(tcell, READ_LOCK);
1783 ReleaseWriteLock(&afs_xuser);
1788 /* Work out which cell we're changing tokens for */
1790 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1798 if (cellName && strlen(cellName) > 0) {
1799 cell = afs_GetCellByName(cellName, READ_LOCK);
1801 cell = afs_GetPrimaryCell(READ_LOCK);
1812 *cellNum = cell->cellNum;
1813 afs_PutCell(cell, READ_LOCK);
1820 _settok_setParentPag(afs_ucred_t **cred) {
1822 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1824 osi_procname(procname, 256);
1825 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1826 MyPidxx2Pid(MyPidxx), procname);
1827 return setpag(osi_curproc(), cred, -1, &pag, 1);
1829 return setpag(cred, -1, &pag, 1);
1834 * VIOCSETTOK (3) - Set authentication tokens
1838 * \param[in] ain the krb tickets from which to set the afs tokens
1839 * \param[out] aout not in use
1842 * Error if the ticket is either too long or too short
1844 * Error if the AFS initState is below 101
1846 * Error if the cell for which the Token is being set can't be found
1849 * Set the Tokens for a specific cell name, unless there is none set,
1850 * then default to primary
1853 DECL_PIOCTL(PSetTokens)
1858 struct unixuser *tu;
1859 struct ClearToken clear;
1863 struct vrequest treq;
1864 afs_int32 flag, set_parent_pag = 0;
1866 AFS_STATCNT(PSetTokens);
1867 if (!afs_resourceinit_flag) {
1871 if (afs_pd_getInt(ain, &stLen) != 0)
1874 stp = afs_pd_where(ain); /* remember where the ticket is */
1875 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1876 return EINVAL; /* malloc may fail */
1877 if (afs_pd_skip(ain, stLen) != 0)
1880 if (afs_pd_getInt(ain, &size) != 0)
1882 if (size != sizeof(struct ClearToken))
1885 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1888 if (clear.AuthHandle == -1)
1889 clear.AuthHandle = 999; /* more rxvab compat stuff */
1891 if (afs_pd_remaining(ain) != 0) {
1892 /* still stuff left? we've got primary flag and cell name.
1895 if (afs_pd_getInt(ain, &flag) != 0)
1898 /* some versions of gcc appear to need != 0 in order to get this
1900 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1905 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1908 code = _settok_tokenCell(cellName, &cellNum, NULL);
1912 /* default to primary cell, primary id */
1913 code = _settok_tokenCell(NULL, &cellNum, &flag);
1918 if (set_parent_pag) {
1919 if (_settok_setParentPag(acred) == 0) {
1920 afs_InitReq(&treq, *acred);
1925 /* now we just set the tokens */
1926 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1927 /* Set tokens destroys any that are already there */
1928 afs_FreeTokens(&tu->tokens);
1929 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1931 afs_stats_cmfullperf.authent.TicketUpdates++;
1932 afs_ComputePAGStats();
1933 #endif /* AFS_NOSTATS */
1934 tu->states |= UHasTokens;
1935 tu->states &= ~UTokensBad;
1936 afs_SetPrimary(tu, flag);
1937 tu->tokenTime = osi_Time();
1938 afs_ResetUserConns(tu);
1939 afs_NotifyUser(tu, UTokensObtained);
1940 afs_PutUser(tu, WRITE_LOCK);
1946 * VIOCGETVOLSTAT (4) - Get volume status
1950 * \param[in] ain not in use
1951 * \param[out] aout status of the volume
1953 * \retval EINVAL Error if some of the standard args aren't set
1956 * The status of a volume (based on the FID of the volume), or an
1957 * offline message /motd
1959 DECL_PIOCTL(PGetVolumeStatus)
1962 char *offLineMsg = afs_osi_Alloc(256);
1963 char *motd = afs_osi_Alloc(256);
1964 struct afs_conn *tc;
1966 struct AFSFetchVolumeStatus volstat;
1968 struct rx_connection *rxconn;
1971 osi_Assert(offLineMsg != NULL);
1972 osi_Assert(motd != NULL);
1973 AFS_STATCNT(PGetVolumeStatus);
1980 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1982 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1985 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
1986 &Name, &offLineMsg, &motd);
1991 } while (afs_Analyze
1992 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
1993 SHARED_LOCK, NULL));
1997 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
1998 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2000 if (afs_pd_putString(aout, volName) != 0)
2002 if (afs_pd_putString(aout, offLineMsg) != 0)
2004 if (afs_pd_putString(aout, motd) != 0)
2007 afs_osi_Free(offLineMsg, 256);
2008 afs_osi_Free(motd, 256);
2013 * VIOCSETVOLSTAT (5) - Set volume status
2018 * values to set the status at, offline message, message of the day,
2019 * volume name, minimum quota, maximum quota
2021 * status of a volume, offlines messages, minimum quota, maximumm quota
2024 * Error if some of the standard args aren't set
2026 * Error if the volume is read only, or a backup volume
2028 * Error if the volume can't be accessed
2030 * Error if the volume name, offline message, and motd are too big
2033 * Set the status of a volume, including any offline messages,
2034 * a minimum quota, and a maximum quota
2036 DECL_PIOCTL(PSetVolumeStatus)
2041 struct afs_conn *tc;
2043 struct AFSFetchVolumeStatus volstat;
2044 struct AFSStoreVolumeStatus storeStat;
2046 struct rx_connection *rxconn;
2049 AFS_STATCNT(PSetVolumeStatus);
2053 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2055 if (tvp->states & (VRO | VBackup)) {
2056 afs_PutVolume(tvp, READ_LOCK);
2059 afs_PutVolume(tvp, READ_LOCK);
2064 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2067 if (afs_pd_getStringPtr(ain, &volName) != 0)
2069 if (strlen(volName) > 32)
2072 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2074 if (strlen(offLineMsg) > 256)
2077 if (afs_pd_getStringPtr(ain, &motd) != 0)
2079 if (strlen(motd) > 256)
2082 /* Done reading ... */
2085 if (volstat.MinQuota != -1) {
2086 storeStat.MinQuota = volstat.MinQuota;
2087 storeStat.Mask |= AFS_SETMINQUOTA;
2089 if (volstat.MaxQuota != -1) {
2090 storeStat.MaxQuota = volstat.MaxQuota;
2091 storeStat.Mask |= AFS_SETMAXQUOTA;
2094 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2096 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2099 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2100 volName, offLineMsg, motd);
2105 } while (afs_Analyze
2106 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2107 SHARED_LOCK, NULL));
2111 /* we are sending parms back to make compat. with prev system. should
2112 * change interface later to not ask for current status, just set new
2115 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2117 if (afs_pd_putString(aout, volName) != 0)
2119 if (afs_pd_putString(aout, offLineMsg) != 0)
2121 if (afs_pd_putString(aout, motd) != 0)
2128 * VIOCFLUSH (6) - Invalidate cache entry
2132 * \param[in] ain not in use
2133 * \param[out] aout not in use
2135 * \retval EINVAL Error if some of the standard args aren't set
2137 * \post Flush any information the cache manager has on an entry
2141 AFS_STATCNT(PFlush);
2144 #ifdef AFS_BOZONLOCK_ENV
2145 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2147 ObtainWriteLock(&avc->lock, 225);
2148 afs_ResetVCache(avc, *acred);
2149 ReleaseWriteLock(&avc->lock);
2150 #ifdef AFS_BOZONLOCK_ENV
2151 afs_BozonUnlock(&avc->pvnLock, avc);
2157 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2162 * the last component in a path, related to mountpoint that we're
2163 * looking for information about
2165 * volume, cell, link data
2167 * \retval EINVAL Error if some of the standard args aren't set
2168 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2169 * \retval EIO Error if the link data can't be accessed
2171 * \post Get the volume, and cell, as well as the link data for a mount point
2173 DECL_PIOCTL(PNewStatMount)
2178 struct VenusFid tfid;
2181 struct sysname_info sysState;
2182 afs_size_t offset, len;
2184 AFS_STATCNT(PNewStatMount);
2188 if (afs_pd_getStringPtr(ain, &name) != 0)
2191 code = afs_VerifyVCache(avc, areq);
2194 if (vType(avc) != VDIR) {
2197 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2200 Check_AtSys(avc, name, &sysState, areq);
2201 ObtainReadLock(&tdc->lock);
2203 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2204 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2205 ReleaseReadLock(&tdc->lock);
2206 afs_PutDCache(tdc); /* we're done with the data */
2207 bufp = sysState.name;
2211 tfid.Cell = avc->f.fid.Cell;
2212 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2213 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2214 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2216 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2222 if (tvc->mvstat != 1) {
2227 ObtainWriteLock(&tvc->lock, 226);
2228 code = afs_HandleLink(tvc, areq);
2230 if (tvc->linkData) {
2231 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2234 /* we have the data */
2235 if (afs_pd_putString(aout, tvc->linkData) != 0)
2241 ReleaseWriteLock(&tvc->lock);
2244 if (sysState.allocked)
2245 osi_FreeLargeSpace(bufp);
2250 * A helper function to get the n'th cell which a particular user has tokens
2251 * for. This is racy. If new tokens are added whilst we're iterating, then
2252 * we may return some cells twice. If tokens expire mid run, then we'll
2253 * miss some cells from our output. So, could be better, but that would
2254 * require an interface change.
2257 static struct unixuser *
2258 getNthCell(afs_int32 uid, afs_int32 iterator) {
2260 struct unixuser *tu = NULL;
2263 ObtainReadLock(&afs_xuser);
2264 for (tu = afs_users[i]; tu; tu = tu->next) {
2265 if (tu->uid == uid && (tu->states & UHasTokens)) {
2266 if (iterator-- == 0)
2267 break; /* are we done yet? */
2273 ReleaseReadLock(&afs_xuser);
2275 afs_LockUser(tu, READ_LOCK, 0);
2282 * VIOCGETTOK (8) - Get authentication tokens
2286 * \param[in] ain cellid to return tokens for
2287 * \param[out] aout token
2290 * Error if the afs daemon hasn't started yet
2292 * Error if the input parameter is out of the bounds of the available
2295 * Error if there aren't tokens for this cell
2298 * If the input paramater exists, get the token that corresponds to
2299 * the parameter value, if there is no token at this value, get the
2300 * token for the first cell
2302 * \notes "it's a weird interface (from comments in the code)"
2305 DECL_PIOCTL(PGetTokens)
2308 struct unixuser *tu = NULL;
2309 union tokenUnion *token;
2310 afs_int32 iterator = 0;
2315 AFS_STATCNT(PGetTokens);
2316 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2317 return EIO; /* Inappropriate ioctl for device */
2319 /* weird interface. If input parameter is present, it is an integer and
2320 * we're supposed to return the parm'th tokens for this unix uid.
2321 * If not present, we just return tokens for cell 1.
2322 * If counter out of bounds, return EDOM.
2323 * If no tokens for the particular cell, return ENOTCONN.
2324 * Also, if this mysterious parm is present, we return, along with the
2325 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2326 * at the end, in that order.
2328 newStyle = (afs_pd_remaining(ain) > 0);
2330 if (afs_pd_getInt(ain, &iterator) != 0)
2334 tu = getNthCell(areq->uid, iterator);
2336 cellNum = afs_GetPrimaryCellNum();
2338 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2343 if (!(tu->states & UHasTokens)
2344 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2345 tu->states |= (UTokensBad | UNeedsReset);
2346 afs_NotifyUser(tu, UTokensDropped);
2347 afs_PutUser(tu, READ_LOCK);
2350 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2352 /* If they don't have an RXKAD token, but do have other tokens,
2353 * then sadly there's nothing this interface can do to help them. */
2357 /* for compat, we try to return 56 byte tix if they fit */
2358 iterator = token->rxkad.ticketLen;
2360 iterator = 56; /* # of bytes we're returning */
2362 if (afs_pd_putInt(aout, iterator) != 0)
2364 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2366 if (token->rxkad.ticketLen < 56) {
2367 /* Tokens are always 56 bytes or larger */
2368 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2373 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2375 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2376 sizeof(struct ClearToken)) != 0)
2380 /* put out primary id and cell name, too */
2381 iterator = (tu->states & UPrimary ? 1 : 0);
2382 if (afs_pd_putInt(aout, iterator) != 0)
2384 tcell = afs_GetCell(tu->cell, READ_LOCK);
2386 if (afs_pd_putString(aout, tcell->cellName) != 0)
2388 afs_PutCell(tcell, READ_LOCK);
2390 if (afs_pd_putString(aout, "") != 0)
2393 /* Got here, all is good */
2396 afs_PutUser(tu, READ_LOCK);
2401 * VIOCUNLOG (9) - Invalidate tokens
2405 * \param[in] ain not in use
2406 * \param[out] aout not in use
2408 * \retval EIO Error if the afs daemon hasn't been started yet
2410 * \post remove tokens from a user, specified by the user id
2412 * \notes sets the token's time to 0, which then causes it to be removed
2413 * \notes Unlog is the same as un-pag in OpenAFS
2418 struct unixuser *tu;
2420 AFS_STATCNT(PUnlog);
2421 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2422 return EIO; /* Inappropriate ioctl for device */
2424 i = UHash(areq->uid);
2425 ObtainWriteLock(&afs_xuser, 227);
2426 for (tu = afs_users[i]; tu; tu = tu->next) {
2427 if (tu->uid == areq->uid) {
2429 ReleaseWriteLock(&afs_xuser);
2431 afs_LockUser(tu, WRITE_LOCK, 366);
2433 tu->states &= ~UHasTokens;
2434 afs_FreeTokens(&tu->tokens);
2435 afs_NotifyUser(tu, UTokensDropped);
2436 /* We have to drop the lock over the call to afs_ResetUserConns,
2437 * since it obtains the afs_xvcache lock. We could also keep
2438 * the lock, and modify ResetUserConns to take parm saying we
2439 * obtained the lock already, but that is overkill. By keeping
2440 * the "tu" pointer held over the released lock, we guarantee
2441 * that we won't lose our place, and that we'll pass over
2442 * every user conn that existed when we began this call.
2444 afs_ResetUserConns(tu);
2445 afs_PutUser(tu, WRITE_LOCK);
2446 ObtainWriteLock(&afs_xuser, 228);
2448 /* set the expire times to 0, causes
2449 * afs_GCUserData to remove this entry
2452 #endif /* UKERNEL */
2455 ReleaseWriteLock(&afs_xuser);
2460 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2464 * \param[in] ain host address to be set
2465 * \param[out] aout old host address
2468 * depending on whether or not a variable is set, either get the host
2469 * for the cache manager monitor, or set the old address and give it
2472 * \notes Errors turn off mariner
2474 DECL_PIOCTL(PMariner)
2476 afs_int32 newHostAddr;
2477 afs_int32 oldHostAddr;
2479 AFS_STATCNT(PMariner);
2481 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2484 oldHostAddr = 0xffffffff; /* disabled */
2486 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2489 if (newHostAddr == 0xffffffff) {
2490 /* disable mariner operations */
2492 } else if (newHostAddr) {
2494 afs_marinerHost = newHostAddr;
2497 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2504 * VIOCCKSERV (10) - Check that servers are up
2508 * \param[in] ain name of the cell
2509 * \param[out] aout current down server list
2511 * \retval EIO Error if the afs daemon hasn't started yet
2512 * \retval EACCES Error if the user doesn't have super-user credentials
2513 * \retval ENOENT Error if we are unable to obtain the cell
2516 * Either a fast check (where it doesn't contact servers) or a
2517 * local check (checks local cell only)
2519 DECL_PIOCTL(PCheckServers)
2524 char *cellName = NULL;
2526 struct chservinfo *pcheck;
2528 AFS_STATCNT(PCheckServers);
2530 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2531 return EIO; /* Inappropriate ioctl for device */
2533 /* This is tricky, because we need to peak at the datastream to see
2534 * what we're getting. For now, let's cheat. */
2536 /* ain contains either an int32 or a string */
2537 if (ain->remaining == 0)
2540 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2541 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2545 if (pcheck->tinterval >= 0) {
2546 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2548 if (pcheck->tinterval > 0) {
2549 if (!afs_osi_suser(*acred))
2551 afs_probe_interval = pcheck->tinterval;
2555 temp = pcheck->tflags;
2557 cellName = pcheck->tbuffer;
2558 } else { /* For pre afs3.3 versions */
2559 if (afs_pd_getInt(ain, &temp) != 0)
2561 if (afs_pd_remaining(ain) > 0) {
2562 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2568 * 1: fast check, don't contact servers.
2569 * 2: local cell only.
2572 /* have cell name, too */
2573 cellp = afs_GetCellByName(cellName, READ_LOCK);
2578 if (!cellp && (temp & 2)) {
2579 /* use local cell */
2580 cellp = afs_GetPrimaryCell(READ_LOCK);
2582 if (!(temp & 1)) { /* if not fast, call server checker routine */
2583 afs_CheckServers(1, cellp); /* check down servers */
2584 afs_CheckServers(0, cellp); /* check up servers */
2586 /* now return the current down server list */
2587 ObtainReadLock(&afs_xserver);
2588 for (i = 0; i < NSERVERS; i++) {
2589 for (ts = afs_servers[i]; ts; ts = ts->next) {
2590 if (cellp && ts->cell != cellp)
2591 continue; /* cell spec'd and wrong */
2592 if ((ts->flags & SRVR_ISDOWN)
2593 && ts->addr->sa_portal != ts->cell->vlport) {
2594 afs_pd_putInt(aout, ts->addr->sa_ip);
2598 ReleaseReadLock(&afs_xserver);
2600 afs_PutCell(cellp, READ_LOCK);
2605 * VIOCCKBACK (11) - Check backup volume mappings
2609 * \param[in] ain not in use
2610 * \param[out] aout not in use
2612 * \retval EIO Error if the afs daemon hasn't started yet
2615 * Check the root volume, and then check the names if the volume
2616 * check variable is set to force, has expired, is busy, or if
2617 * the mount points variable is set
2619 DECL_PIOCTL(PCheckVolNames)
2621 AFS_STATCNT(PCheckVolNames);
2622 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2623 return EIO; /* Inappropriate ioctl for device */
2625 afs_CheckRootVolume();
2626 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2627 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2632 * VIOCCKCONN (12) - Check connections for a user
2636 * \param[in] ain not in use
2637 * \param[out] aout not in use
2640 * Error if no user is specififed, the user has no tokens set,
2641 * or if the user's tokens are bad
2644 * check to see if a user has the correct authentication.
2645 * If so, allow access.
2647 * \notes Check the connections to all the servers specified
2649 DECL_PIOCTL(PCheckAuth)
2653 struct sa_conn_vector *tcv;
2654 struct unixuser *tu;
2657 AFS_STATCNT(PCheckAuth);
2658 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2659 return EIO; /* Inappropriate ioctl for device */
2662 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2666 /* we have a user */
2667 ObtainReadLock(&afs_xsrvAddr);
2668 ObtainReadLock(&afs_xconn);
2670 /* any tokens set? */
2671 if ((tu->states & UHasTokens) == 0)
2673 /* all connections in cell 1 working? */
2674 for (i = 0; i < NSERVERS; i++) {
2675 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2676 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2677 if (tcv->user == tu && (tu->states & UTokensBad))
2682 ReleaseReadLock(&afs_xsrvAddr);
2683 ReleaseReadLock(&afs_xconn);
2684 afs_PutUser(tu, READ_LOCK);
2686 if (afs_pd_putInt(aout, retValue) != 0)
2692 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2697 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2703 AFS_STATCNT(Prefetch);
2706 tp = osi_AllocLargeSpace(1024);
2707 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2709 osi_FreeLargeSpace(tp);
2712 if (afs_BBusy()) { /* do this as late as possible */
2713 osi_FreeLargeSpace(tp);
2714 return EWOULDBLOCK; /* pretty close */
2716 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2717 (afs_size_t) 0, tp, (void *)0, (void *)0);
2722 * VIOCWHEREIS (14) - Find out where a volume is located
2726 * \param[in] ain not in use
2727 * \param[out] aout volume location
2729 * \retval EINVAL Error if some of the default arguments don't exist
2730 * \retval ENODEV Error if there is no such volume
2732 * \post fine a volume, based on a volume file id
2734 * \notes check each of the servers specified
2736 DECL_PIOCTL(PFindVolume)
2743 AFS_STATCNT(PFindVolume);
2746 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2750 for (i = 0; i < AFS_MAXHOSTS; i++) {
2751 ts = tvp->serverHost[i];
2754 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2759 if (i < AFS_MAXHOSTS) {
2760 /* still room for terminating NULL, add it on */
2761 if (afs_pd_putInt(aout, 0) != 0) {
2767 afs_PutVolume(tvp, READ_LOCK);
2772 * VIOCACCESS (20) - Access using PRS_FS bits
2776 * \param[in] ain PRS_FS bits
2777 * \param[out] aout not in use
2779 * \retval EINVAL Error if some of the initial arguments aren't set
2780 * \retval EACCES Error if access is denied
2782 * \post check to make sure access is allowed
2784 DECL_PIOCTL(PViceAccess)
2789 AFS_STATCNT(PViceAccess);
2793 code = afs_VerifyVCache(avc, areq);
2797 if (afs_pd_getInt(ain, &temp) != 0)
2800 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2808 * VIOC_GETPAG (13) - Get PAG value
2812 * \param[in] ain not in use
2813 * \param[out] aout PAG value or NOPAG
2815 * \post get PAG value for the caller's cred
2817 DECL_PIOCTL(PGetPAG)
2821 pag = PagInCred(*acred);
2823 return afs_pd_putInt(aout, pag);
2826 DECL_PIOCTL(PPrecache)
2830 /*AFS_STATCNT(PPrecache);*/
2831 if (!afs_osi_suser(*acred))
2834 if (afs_pd_getInt(ain, &newValue) != 0)
2837 afs_preCache = newValue*1024;
2842 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2846 * \param[in] ain the size the venus cache should be set to
2847 * \param[out] aout not in use
2849 * \retval EACCES Error if the user doesn't have super-user credentials
2850 * \retval EROFS Error if the cache is set to be in memory
2853 * Set the cache size based on user input. If no size is given,
2854 * set it to the default OpenAFS cache size.
2857 * recompute the general cache parameters for every single block allocated
2859 DECL_PIOCTL(PSetCacheSize)
2864 AFS_STATCNT(PSetCacheSize);
2866 if (!afs_osi_suser(*acred))
2868 /* too many things are setup initially in mem cache version */
2869 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2871 if (afs_pd_getInt(ain, &newValue) != 0)
2874 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2876 if (newValue < afs_min_cache)
2877 afs_cacheBlocks = afs_min_cache;
2879 afs_cacheBlocks = newValue;
2881 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2882 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2883 afs_MaybeWakeupTruncateDaemon();
2884 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2885 afs_osi_Wait(1000, 0, 0);
2886 afs_MaybeWakeupTruncateDaemon();
2891 #define MAXGCSTATS 16
2893 * VIOCGETCACHEPARMS (40) - Get cache stats
2897 * \param[in] ain afs index flags
2898 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2900 * \post Get the cache blocks, and how many of the cache blocks there are
2902 DECL_PIOCTL(PGetCacheSize)
2904 afs_int32 results[MAXGCSTATS];
2906 struct dcache * tdc;
2909 AFS_STATCNT(PGetCacheSize);
2911 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2912 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2913 } else if (afs_pd_remaining(ain) == 0) {
2919 memset(results, 0, sizeof(results));
2920 results[0] = afs_cacheBlocks;
2921 results[1] = afs_blocksUsed;
2922 results[2] = afs_cacheFiles;
2925 for (i = 0; i < afs_cacheFiles; i++) {
2926 if (afs_indexFlags[i] & IFFree) results[3]++;
2928 } else if (2 == flags){
2929 for (i = 0; i < afs_cacheFiles; i++) {
2930 if (afs_indexFlags[i] & IFFree) results[3]++;
2931 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2932 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2933 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2934 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2935 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2937 tdc = afs_indexTable[i];
2940 size = tdc->validPos;
2941 if ( 0 < size && size < (1<<12) ) results[10]++;
2942 else if (size < (1<<14) ) results[11]++;
2943 else if (size < (1<<16) ) results[12]++;
2944 else if (size < (1<<18) ) results[13]++;
2945 else if (size < (1<<20) ) results[14]++;
2946 else if (size >= (1<<20) ) results[15]++;
2950 return afs_pd_putBytes(aout, results, sizeof(results));
2954 * VIOCFLUSHCB (25) - Flush callback only
2958 * \param[in] ain not in use
2959 * \param[out] aout not in use
2961 * \retval EINVAL Error if some of the standard args aren't set
2962 * \retval 0 0 returned if the volume is set to read-only
2965 * Flushes callbacks, by setting the length of callbacks to one,
2966 * setting the next callback to be sent to the CB_DROPPED value,
2967 * and then dequeues everything else.
2969 DECL_PIOCTL(PRemoveCallBack)
2971 struct afs_conn *tc;
2973 struct AFSCallBack CallBacks_Array[1];
2974 struct AFSCBFids theFids;
2975 struct AFSCBs theCBs;
2976 struct rx_connection *rxconn;
2979 AFS_STATCNT(PRemoveCallBack);
2982 if (avc->f.states & CRO)
2983 return 0; /* read-only-ness can't change */
2984 ObtainWriteLock(&avc->lock, 229);
2985 theFids.AFSCBFids_len = 1;
2986 theCBs.AFSCBs_len = 1;
2987 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2988 theCBs.AFSCBs_val = CallBacks_Array;
2989 CallBacks_Array[0].CallBackType = CB_DROPPED;
2990 if (avc->callback) {
2992 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2994 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
2996 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3000 /* don't set code on failure since we wouldn't use it */
3001 } while (afs_Analyze
3002 (tc, rxconn, code, &avc->f.fid, areq,
3003 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3005 ObtainWriteLock(&afs_xcbhash, 457);
3006 afs_DequeueCallback(avc);
3008 avc->f.states &= ~(CStatd | CUnique);
3009 ReleaseWriteLock(&afs_xcbhash);
3010 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3011 osi_dnlc_purgedp(avc);
3013 ReleaseWriteLock(&avc->lock);
3018 * VIOCNEWCELL (26) - Configure new cell
3023 * the name of the cell, the hosts that will be a part of the cell,
3024 * whether or not it's linked with another cell, the other cell it's
3025 * linked with, the file server port, and the volume server port
3029 * \retval EIO Error if the afs daemon hasn't started yet
3030 * \retval EACCES Error if the user doesn't have super-user cedentials
3031 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3033 * \post creates a new cell
3035 DECL_PIOCTL(PNewCell)
3037 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3038 char *newcell = NULL;
3039 char *linkedcell = NULL;
3041 afs_int32 linkedstate = 0;
3042 afs_int32 fsport = 0, vlport = 0;
3045 AFS_STATCNT(PNewCell);
3046 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3047 return EIO; /* Inappropriate ioctl for device */
3049 if (!afs_osi_suser(*acred))
3052 if (afs_pd_getInt(ain, &magic) != 0)
3054 if (magic != 0x12345678)
3057 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3058 * server addresses while the 3.5 fs newcell command passes
3059 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3062 * This whole logic is bogus, because it relies on the newer command
3063 * sending its 12th address as 0.
3065 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3068 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3069 if (newcell[0] != '\0') {
3072 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3075 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3076 if (afs_pd_getBytes(ain, &cellHosts,
3077 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3079 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3082 if (afs_pd_getInt(ain, &fsport) != 0)
3085 fsport = 0; /* Privileged ports not allowed */
3087 if (afs_pd_getInt(ain, &vlport) != 0)
3090 vlport = 0; /* Privileged ports not allowed */
3092 if (afs_pd_getInt(ain, &ls) != 0)
3095 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3099 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3101 linkedstate |= CLinkedCell;
3104 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3106 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3111 DECL_PIOCTL(PNewAlias)
3113 /* create a new cell alias */
3114 char *realName, *aliasName;
3116 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3117 return EIO; /* Inappropriate ioctl for device */
3119 if (!afs_osi_suser(*acred))
3122 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3124 if (afs_pd_getStringPtr(ain, &realName) != 0)
3127 return afs_NewCellAlias(aliasName, realName);
3131 * VIOCGETCELL (27) - Get cell info
3135 * \param[in] ain The cell index of a specific cell
3136 * \param[out] aout list of servers in the cell
3138 * \retval EIO Error if the afs daemon hasn't started yet
3139 * \retval EDOM Error if there is no cell asked about
3141 * \post Lists the cell's server names and and addresses
3143 DECL_PIOCTL(PListCells)
3145 afs_int32 whichCell;
3146 struct cell *tcell = 0;
3150 AFS_STATCNT(PListCells);
3151 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3152 return EIO; /* Inappropriate ioctl for device */
3154 if (afs_pd_getInt(ain, &whichCell) != 0)
3157 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3163 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3164 if (tcell->cellHosts[i] == 0)
3166 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3169 for (;i < AFS_MAXCELLHOSTS; i++) {
3170 if (afs_pd_putInt(aout, 0) != 0)
3173 if (afs_pd_putString(aout, tcell->cellName) != 0)
3178 afs_PutCell(tcell, READ_LOCK);
3182 DECL_PIOCTL(PListAliases)
3184 afs_int32 whichAlias;
3185 struct cell_alias *tcalias = 0;
3188 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3189 return EIO; /* Inappropriate ioctl for device */
3191 if (afs_pd_getInt(ain, &whichAlias) != 0)
3194 tcalias = afs_GetCellAlias(whichAlias);
3195 if (tcalias == NULL)
3199 if (afs_pd_putString(aout, tcalias->alias) != 0)
3201 if (afs_pd_putString(aout, tcalias->cell) != 0)
3206 afs_PutCellAlias(tcalias);
3211 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3215 * \param[in] ain the name of the file in this dir to remove
3216 * \param[out] aout not in use
3219 * Error if some of the standard args aren't set
3221 * Error if the argument to remove is not a directory
3223 * Error if there is no cache to remove the mount point from or
3224 * if a vcache doesn't exist
3227 * Ensure that everything is OK before deleting the mountpoint.
3228 * If not, don't delete. Delete a mount point based on a file id.
3230 DECL_PIOCTL(PRemoveMount)
3235 struct sysname_info sysState;
3236 afs_size_t offset, len;
3237 struct afs_conn *tc;
3240 struct AFSFetchStatus OutDirStatus;
3241 struct VenusFid tfid;
3242 struct AFSVolSync tsync;
3243 struct rx_connection *rxconn;
3246 /* "ain" is the name of the file in this dir to remove */
3248 AFS_STATCNT(PRemoveMount);
3251 if (afs_pd_getStringPtr(ain, &name) != 0)
3254 code = afs_VerifyVCache(avc, areq);
3257 if (vType(avc) != VDIR)
3260 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3263 Check_AtSys(avc, name, &sysState, areq);
3264 ObtainReadLock(&tdc->lock);
3266 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3267 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3268 ReleaseReadLock(&tdc->lock);
3269 bufp = sysState.name;
3274 tfid.Cell = avc->f.fid.Cell;
3275 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3276 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3277 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3279 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3286 if (tvc->mvstat != 1) {
3292 ObtainWriteLock(&tvc->lock, 230);
3293 code = afs_HandleLink(tvc, areq);
3295 if (tvc->linkData) {
3296 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3301 ReleaseWriteLock(&tvc->lock);
3302 osi_dnlc_purgedp(tvc);
3308 ObtainWriteLock(&avc->lock, 231);
3309 osi_dnlc_remove(avc, bufp, tvc);
3311 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3313 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3316 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3317 &OutDirStatus, &tsync);
3322 } while (afs_Analyze
3323 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3324 SHARED_LOCK, NULL));
3329 ReleaseWriteLock(&avc->lock);
3333 /* we have the thing in the cache */
3334 ObtainWriteLock(&tdc->lock, 661);
3335 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3336 /* we can do it locally */
3337 code = afs_dir_Delete(tdc, bufp);
3339 ZapDCE(tdc); /* surprise error -- invalid value */
3343 ReleaseWriteLock(&tdc->lock);
3344 afs_PutDCache(tdc); /* drop ref count */
3346 avc->f.states &= ~CUnique; /* For the dfs xlator */
3347 ReleaseWriteLock(&avc->lock);
3350 if (sysState.allocked)
3351 osi_FreeLargeSpace(bufp);
3356 * VIOC_GETCELLSTATUS (35) - Get cell status info
3360 * \param[in] ain The cell you want status information on
3361 * \param[out] aout cell state (as a struct)
3363 * \retval EIO Error if the afs daemon hasn't started yet
3364 * \retval ENOENT Error if the cell doesn't exist
3366 * \post Returns the state of the cell as defined in a struct cell
3368 DECL_PIOCTL(PGetCellStatus)
3374 AFS_STATCNT(PGetCellStatus);
3375 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3376 return EIO; /* Inappropriate ioctl for device */
3378 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3381 tcell = afs_GetCellByName(cellName, READ_LOCK);
3384 temp = tcell->states;
3385 afs_PutCell(tcell, READ_LOCK);
3387 return afs_pd_putInt(aout, temp);
3391 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3396 * The cell you want to set information about, and the values you
3401 * \retval EIO Error if the afs daemon hasn't started yet
3402 * \retval EACCES Error if the user doesn't have super-user credentials
3405 * Set the state of the cell in a defined struct cell, based on
3406 * whether or not SetUID is allowed
3408 DECL_PIOCTL(PSetCellStatus)
3412 afs_int32 flags0, flags1;
3414 if (!afs_osi_suser(*acred))
3416 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3417 return EIO; /* Inappropriate ioctl for device */
3419 if (afs_pd_getInt(ain, &flags0) != 0)
3421 if (afs_pd_getInt(ain, &flags1) != 0)
3423 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3426 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3429 if (flags0 & CNoSUID)
3430 tcell->states |= CNoSUID;
3432 tcell->states &= ~CNoSUID;
3433 afs_PutCell(tcell, WRITE_LOCK);
3438 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3442 * \param[in] ain not in use (args in avc)
3443 * \param[out] aout not in use
3445 * \retval EINVAL Error if some of the standard args aren't set
3446 * \retval EIO Error if the afs daemon hasn't started yet
3449 * Flush all cached contents of a volume. Exactly what stays and what
3450 * goes depends on the platform.
3453 * Does not flush a file that a user has open and is using, because
3454 * it will be re-created on next write. Also purges the dnlc,
3455 * because things are screwed up.
3457 DECL_PIOCTL(PFlushVolumeData)
3463 afs_int32 cell, volume;
3464 struct afs_q *tq, *uq;
3465 #ifdef AFS_DARWIN80_ENV
3469 AFS_STATCNT(PFlushVolumeData);
3472 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3473 return EIO; /* Inappropriate ioctl for device */
3475 volume = avc->f.fid.Fid.Volume; /* who to zap */
3476 cell = avc->f.fid.Cell;
3479 * Clear stat'd flag from all vnodes from this volume; this will
3480 * invalidate all the vcaches associated with the volume.
3483 ObtainReadLock(&afs_xvcache);
3484 i = VCHashV(&avc->f.fid);
3485 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3488 if (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell) {
3489 if (tvc->f.states & CVInit) {
3490 ReleaseReadLock(&afs_xvcache);
3491 afs_osi_Sleep(&tvc->f.states);
3494 #ifdef AFS_DARWIN80_ENV
3495 if (tvc->f.states & CDeadVnode) {
3496 ReleaseReadLock(&afs_xvcache);
3497 afs_osi_Sleep(&tvc->f.states);
3503 if (vnode_ref(vp)) {
3512 ReleaseReadLock(&afs_xvcache);
3513 #ifdef AFS_BOZONLOCK_ENV
3514 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3516 ObtainWriteLock(&tvc->lock, 232);
3518 ObtainWriteLock(&afs_xcbhash, 458);
3519 afs_DequeueCallback(tvc);
3520 tvc->f.states &= ~(CStatd | CDirty);
3521 ReleaseWriteLock(&afs_xcbhash);
3522 if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
3523 osi_dnlc_purgedp(tvc);
3524 afs_TryToSmush(tvc, *acred, 1);
3525 ReleaseWriteLock(&tvc->lock);
3526 #ifdef AFS_BOZONLOCK_ENV
3527 afs_BozonUnlock(&tvc->pvnLock, tvc);
3529 #ifdef AFS_DARWIN80_ENV
3530 vnode_put(AFSTOV(tvc));
3532 ObtainReadLock(&afs_xvcache);
3534 /* our tvc ptr is still good until now */
3538 ReleaseReadLock(&afs_xvcache);
3541 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3542 for (i = 0; i < afs_cacheFiles; i++) {
3543 if (!(afs_indexFlags[i] & IFEverUsed))
3544 continue; /* never had any data */
3545 tdc = afs_GetDSlot(i, NULL);
3546 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3547 ReleaseReadLock(&tdc->tlock);
3548 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
3549 if (!(afs_indexFlags[i] & IFDataMod)) {
3550 /* if the file is modified, but has a ref cnt of only 1,
3551 * then someone probably has the file open and is writing
3552 * into it. Better to skip flushing such a file, it will be
3553 * brought back immediately on the next write anyway.
3555 * If we *must* flush, then this code has to be rearranged
3556 * to call afs_storeAllSegments() first */
3557 afs_FlushDCache(tdc);
3561 ReleaseReadLock(&tdc->tlock);
3563 afs_PutDCache(tdc); /* bumped by getdslot */
3565 ReleaseWriteLock(&afs_xdcache);
3567 ObtainReadLock(&afs_xvolume);
3568 for (i = 0; i < NVOLS; i++) {
3569 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3570 if (tv->volume == volume) {
3571 afs_ResetVolumeInfo(tv);
3576 ReleaseReadLock(&afs_xvolume);
3578 /* probably, a user is doing this, probably, because things are screwed up.
3579 * maybe it's the dnlc's fault? */
3586 * VIOCGETVCXSTATUS (41) - gets vnode x status
3591 * not in use (avc used)
3593 * vcxstat: the file id, the data version, any lock, the parent vnode,
3594 * the parent unique id, the trunc position, the callback, cbExpires,
3595 * what access is being made, what files are open,
3596 * any users executing/writing, the flock count, the states,
3600 * Error if some of the initial default arguments aren't set
3602 * Error if access to check the mode bits is denied
3605 * gets stats for the vnode, a struct listed in vcxstat
3607 DECL_PIOCTL(PGetVnodeXStatus)
3610 struct vcxstat stat;
3613 /* AFS_STATCNT(PGetVnodeXStatus); */
3616 code = afs_VerifyVCache(avc, areq);
3619 if (vType(avc) == VDIR)
3620 mode = PRSFS_LOOKUP;
3623 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3626 memset(&stat, 0, sizeof(struct vcxstat));
3627 stat.fid = avc->f.fid;
3628 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3629 stat.lock = avc->lock;
3630 stat.parentVnode = avc->f.parent.vnode;
3631 stat.parentUnique = avc->f.parent.unique;
3632 hset(stat.flushDV, avc->flushDV);
3633 hset(stat.mapDV, avc->mapDV);
3634 stat.truncPos = avc->f.truncPos;
3635 { /* just grab the first two - won't break anything... */
3636 struct axscache *ac;
3638 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3639 stat.randomUid[i] = ac->uid;
3640 stat.randomAccess[i] = ac->axess;
3643 stat.callback = afs_data_pointer_to_int32(avc->callback);
3644 stat.cbExpires = avc->cbExpires;
3645 stat.anyAccess = avc->f.anyAccess;
3646 stat.opens = avc->opens;
3647 stat.execsOrWriters = avc->execsOrWriters;
3648 stat.flockCount = avc->flockCount;
3649 stat.mvstat = avc->mvstat;
3650 stat.states = avc->f.states;
3651 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3655 DECL_PIOCTL(PGetVnodeXStatus2)
3658 struct vcxstat2 stat;
3663 code = afs_VerifyVCache(avc, areq);
3666 if (vType(avc) == VDIR)
3667 mode = PRSFS_LOOKUP;
3670 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3673 memset(&stat, 0, sizeof(struct vcxstat2));
3675 stat.cbExpires = avc->cbExpires;
3676 stat.anyAccess = avc->f.anyAccess;
3677 stat.mvstat = avc->mvstat;
3678 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3680 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3685 * VIOC_AFS_SYSNAME (38) - Change @sys value
3689 * \param[in] ain new value for @sys
3690 * \param[out] aout count, entry, list (debug values?)
3693 * Error if afsd isn't running, the new sysname is too large,
3694 * the new sysname causes issues (starts with a . or ..),
3695 * there is no PAG set in the credentials, or the user of a PAG
3698 * Error if the user doesn't have super-user credentials
3701 * Set the value of @sys if these things work: if the input isn't
3702 * too long or if input doesn't start with . or ..
3705 * We require root for local sysname changes, but not for remote
3706 * (since we don't really believe remote uids anyway)
3707 * outname[] shouldn't really be needed- this is left as an
3708 * exercise for the reader.
3710 DECL_PIOCTL(PSetSysName)
3712 char *inname = NULL;
3713 char outname[MAXSYSNAME];
3714 afs_int32 setsysname;
3716 struct afs_exporter *exporter;
3717 struct unixuser *au;
3718 afs_int32 pag, error;
3719 int t, count, num = 0, allpags = 0;
3721 struct afs_pdata validate;
3723 AFS_STATCNT(PSetSysName);
3724 if (!afs_globalVFS) {
3725 /* Afsd is NOT running; disable it */
3726 #if defined(KERNEL_HAVE_UERROR)
3727 return (setuerror(EINVAL), EINVAL);
3732 if (afs_pd_getInt(ain, &setsysname) != 0)
3734 if (setsysname & 0x8000) {
3736 setsysname &= ~0x8000;
3741 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3744 for (count = 0; count < setsysname; count++) {
3745 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3748 if (t >= MAXSYSNAME || t <= 0)
3750 /* check for names that can shoot us in the foot */
3751 if (inname[0] == '.' && (inname[1] == 0
3752 || (inname[1] == '.' && inname[2] == 0)))
3755 /* args ok, so go back to the beginning of that section */
3757 if (afs_pd_getStringPtr(ain, &inname) != 0)
3761 if (afs_cr_gid(*acred) == RMTUSER_REQ ||
3762 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV) { /* Handles all exporters */
3763 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3766 pag = PagInCred(*acred);
3768 return EINVAL; /* Better than panicing */
3770 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3771 return EINVAL; /* Better than panicing */
3773 if (!(exporter = au->exporter)) {
3774 afs_PutUser(au, READ_LOCK);
3775 return EINVAL; /* Better than panicing */
3777 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3780 if (error == ENODEV)
3781 foundname = 0; /* sysname not set yet! */
3783 afs_PutUser(au, READ_LOCK);
3788 strcpy(outname, sysnamelist[0]);
3790 afs_PutUser(au, READ_LOCK);
3794 /* Not xlating, so local case */
3796 osi_Panic("PSetSysName: !afs_sysname\n");
3797 if (!setsysname) { /* user just wants the info */
3798 strcpy(outname, afs_sysname);
3799 foundname = afs_sysnamecount;
3800 sysnamelist = afs_sysnamelist;
3801 } else { /* Local guy; only root can change sysname */
3802 if (!afs_osi_suser(*acred))
3805 /* allpags makes no sense for local use */
3809 /* clear @sys entries from the dnlc, once afs_lookup can
3810 * do lookups of @sys entries and thinks it can trust them */
3811 /* privs ok, store the entry, ... */
3813 if (strlen(inname) >= MAXSYSNAME-1)
3815 strcpy(afs_sysname, inname);
3817 if (setsysname > 1) { /* ... or list */
3818 for (count = 1; count < setsysname; ++count) {
3819 if (!afs_sysnamelist[count])
3821 ("PSetSysName: no afs_sysnamelist entry to write\n");
3822 if (afs_pd_getString(ain, afs_sysnamelist[count],
3827 afs_sysnamecount = setsysname;
3832 if (afs_pd_putInt(aout, foundname) != 0)
3835 if (afs_pd_putString(aout, outname) != 0)
3837 for (count = 1; count < foundname; ++count) { /* ... or list. */
3838 if (!sysnamelist[count])
3840 ("PSetSysName: no afs_sysnamelist entry to read\n");
3841 t = strlen(sysnamelist[count]);
3842 if (t >= MAXSYSNAME)
3843 osi_Panic("PSetSysName: sysname entry garbled\n");
3844 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3852 /* sequential search through the list of touched cells is not a good
3853 * long-term solution here. For small n, though, it should be just
3854 * fine. Should consider special-casing the local cell for large n.
3855 * Likewise for PSetSPrefs.
3857 * s - number of ids in array l[] -- NOT index of last id
3858 * l - array of cell ids which have volumes that need to be sorted
3859 * vlonly - sort vl servers or file servers?
3862 ReSortCells_cb(struct cell *cell, void *arg)
3864 afs_int32 *p = (afs_int32 *) arg;
3865 afs_int32 *l = p + 1;
3868 for (i = 0; i < s; i++) {
3869 if (l[i] == cell->cellNum) {
3870 ObtainWriteLock(&cell->lock, 690);
3871 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3872 ReleaseWriteLock(&cell->lock);
3880 ReSortCells(int s, afs_int32 * l, int vlonly)
3888 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3889 osi_Assert(p != NULL);
3891 memcpy(p + 1, l, s * sizeof(afs_int32));
3892 afs_TraverseCells(&ReSortCells_cb, p);
3893 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3897 ObtainReadLock(&afs_xvolume);
3898 for (i = 0; i < NVOLS; i++) {
3899 for (j = afs_volumes[i]; j; j = j->next) {
3900 for (k = 0; k < s; k++)
3901 if (j->cell == l[k]) {
3902 ObtainWriteLock(&j->lock, 233);
3903 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3904 ReleaseWriteLock(&j->lock);
3909 ReleaseReadLock(&afs_xvolume);
3913 static int debugsetsp = 0;
3915 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3918 int i, j, k, matches, touchedSize;
3919 struct server *srvr = NULL;
3920 afs_int32 touched[34];
3924 for (k = 0; k < num; sp++, k++) {
3926 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3929 ObtainReadLock(&afs_xserver);
3931 i = SHash(sp->host.s_addr);
3932 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3933 if (sa->sa_ip == sp->host.s_addr) {
3935 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3936 || (sa->sa_portal == AFS_FSPORT);
3937 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3944 if (sa && matches) { /* found one! */
3946 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3948 sa->sa_iprank = sp->rank + afs_randomMod15();
3949 afs_SortOneServer(sa->server);
3952 /* if we don't know yet what cell it's in, this is moot */
3953 for (j = touchedSize - 1;
3954 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
3955 /* is it in our list of touched cells ? */ ;
3956 if (j < 0) { /* no, it's not */
3957 touched[touchedSize++] = srvr->cell->cellNum;
3958 if (touchedSize >= 32) { /* watch for ovrflow */
3959 ReleaseReadLock(&afs_xserver);
3960 ReSortCells(touchedSize, touched, vlonly);
3962 ObtainReadLock(&afs_xserver);
3968 ReleaseReadLock(&afs_xserver);
3969 /* if we didn't find one, start to create one. */
3970 /* Note that it doesn't have a cell yet... */
3972 afs_uint32 temp = sp->host.s_addr;
3974 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
3975 WRITE_LOCK, (afsUUID *) 0, 0, NULL);
3976 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
3977 afs_PutServer(srvr, WRITE_LOCK);
3979 } /* for all cited preferences */
3981 ReSortCells(touchedSize, touched, vlonly);
3986 * VIOC_SETPREFS (46) - Set server ranks
3988 * \param[in] ain the sprefs value you want the sprefs to be set to
3989 * \param[out] aout not in use
3992 * Error if the afs daemon hasn't started yet
3994 * Error if the user doesn't have super-user credentials
3996 * Error if the struct setsprefs is too large or if it multiplied
3997 * by the number of servers is too large
3999 * \post set the sprefs using the afs_setsprefs() function
4001 DECL_PIOCTL(PSetSPrefs)
4003 struct setspref *ssp;
4007 AFS_STATCNT(PSetSPrefs);
4009 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4010 return EIO; /* Inappropriate ioctl for device */
4012 if (!afs_osi_suser(*acred))
4015 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4016 * of arrays. But, i'm not quite brave enough to change it yet. */
4018 ainSize = ain->remaining;
4020 if (ainSize < sizeof(struct setspref))
4023 ssp = (struct setspref *)ainPtr;
4024 if (ainSize < (sizeof(struct setspref)
4025 + sizeof(struct spref) * (ssp->num_servers-1)))
4028 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4029 (ssp->flags & DBservers));
4034 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4036 * \param[in] ain the server preferences to be set
4037 * \param[out] aout not in use
4039 * \retval EIO Error if the afs daemon hasn't started yet
4040 * \retval EACCES Error if the user doesn't have super-user credentials
4042 * \post set the server preferences, calling a function
4044 * \notes this may only be performed by the local root user.
4046 DECL_PIOCTL(PSetSPrefs33)
4048 AFS_STATCNT(PSetSPrefs);
4049 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4050 return EIO; /* Inappropriate ioctl for device */
4053 if (!afs_osi_suser(*acred))
4056 afs_setsprefs((struct spref *)afs_pd_where(ain),
4057 afs_pd_remaining(ain) / sizeof(struct spref),
4063 * VIOC_GETSPREFS (43) - Get server ranks
4067 * \param[in] ain the server preferences to get
4068 * \param[out] aout the server preferences information
4070 * \retval EIO Error if the afs daemon hasn't started yet
4071 * \retval ENOENT Error if the sprefrequest is too large
4073 * \post Get the sprefs
4076 * in the hash table of server structs, all servers with the same
4077 * IP address; will be on the same overflow chain; This could be
4078 * sped slightly in some circumstances by having it cache the
4079 * immediately previous slot in the hash table and some
4080 * supporting information; Only reports file servers now.
4082 DECL_PIOCTL(PGetSPrefs)
4084 struct sprefrequest spin; /* input */
4085 struct sprefinfo *spout; /* output */
4086 struct spref *srvout; /* one output component */
4087 int i, j; /* counters for hash table traversal */
4088 struct server *srvr; /* one of CM's server structs */
4090 int vlonly; /* just return vlservers ? */
4093 AFS_STATCNT(PGetSPrefs);
4094 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4095 return EIO; /* Inappropriate ioctl for device */
4097 /* Work out from the size whether we've got a new, or old, style pioctl */
4098 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4099 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4104 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4106 vlonly = (spin.flags & DBservers);
4109 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4110 * quite brave enough to tackle it yet ...
4113 /* struct sprefinfo includes 1 server struct... that size gets added
4114 * in during the loop that follows.
4116 spout = afs_pd_inline(aout,
4117 sizeof(struct sprefinfo) - sizeof(struct spref));
4118 spout->next_offset = spin.offset;
4119 spout->num_servers = 0;
4120 srvout = spout->servers;
4122 ObtainReadLock(&afs_xserver);
4123 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4124 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4125 if (spin.offset > (unsigned short)i) {
4126 continue; /* catch up to where we left off */
4128 spout->next_offset++;
4131 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4132 || (sa->sa_portal == AFS_FSPORT);
4134 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4135 /* only report ranks for vl servers */
4139 /* Check we've actually got the space we're about to use */
4140 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4141 ReleaseReadLock(&afs_xserver); /* no more room! */
4145 srvout->host.s_addr = sa->sa_ip;
4146 srvout->rank = sa->sa_iprank;
4147 spout->num_servers++;
4151 ReleaseReadLock(&afs_xserver);
4153 spout->next_offset = 0; /* start over from the beginning next time */
4158 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4159 int afs_NFSRootOnly = 1;
4161 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4166 * an integer containing the desired exportee flags
4168 * an integer containing the current exporter flags
4170 * \retval ENODEV Error if the exporter doesn't exist
4171 * \retval EACCES Error if the user doesn't have super-user credentials
4174 * Changes the state of various values to reflect the change
4175 * of the export values between nfs and afs.
4177 * \notes Legacy code obtained from IBM.
4179 DECL_PIOCTL(PExportAfs)
4181 afs_int32 export, newint = 0;
4182 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4183 afs_int32 rempags = 0, pagcb = 0;
4184 struct afs_exporter *exporter;
4186 AFS_STATCNT(PExportAfs);
4187 if (afs_pd_getInt(ain, &handleValue) != 0)
4189 type = handleValue >> 24;
4194 exporter = exporter_find(type);
4196 export = handleValue & 3;
4197 changestate = handleValue & 0xfff;
4198 smounts = (handleValue >> 2) & 3;
4199 pwsync = (handleValue >> 4) & 3;
4200 convmode = (handleValue >> 6) & 3;
4201 rempags = (handleValue >> 8) & 3;
4202 pagcb = (handleValue >> 10) & 3;
4204 changestate = (handleValue >> 16) & 0x1;
4205 convmode = (handleValue >> 16) & 0x2;
4206 pwsync = (handleValue >> 16) & 0x4;
4207 smounts = (handleValue >> 16) & 0x8;
4208 export = handleValue & 0xff;
4211 /* Failed finding desired exporter; */
4215 handleValue = exporter->exp_states;
4216 if (afs_pd_putInt(aout, handleValue) != 0)
4219 if (!afs_osi_suser(*acred))
4220 return EACCES; /* Only superuser can do this */
4224 exporter->exp_states |= EXP_EXPORTED;
4226 exporter->exp_states &= ~EXP_EXPORTED;
4230 exporter->exp_states |= EXP_UNIXMODE;
4232 exporter->exp_states &= ~EXP_UNIXMODE;
4236 exporter->exp_states |= EXP_PWSYNC;
4238 exporter->exp_states &= ~EXP_PWSYNC;
4242 afs_NFSRootOnly = 0;
4243 exporter->exp_states |= EXP_SUBMOUNTS;
4245 afs_NFSRootOnly = 1;
4246 exporter->exp_states &= ~EXP_SUBMOUNTS;
4251 exporter->exp_states |= EXP_CLIPAGS;
4253 exporter->exp_states &= ~EXP_CLIPAGS;
4257 exporter->exp_states |= EXP_CALLBACK;
4259 exporter->exp_states &= ~EXP_CALLBACK;
4261 handleValue = exporter->exp_states;
4262 if (afs_pd_putInt(aout, handleValue) != 0)
4266 exporter->exp_states |= EXP_EXPORTED;
4268 exporter->exp_states &= ~EXP_EXPORTED;
4270 exporter->exp_states |= EXP_UNIXMODE;
4272 exporter->exp_states &= ~EXP_UNIXMODE;
4274 exporter->exp_states |= EXP_PWSYNC;
4276 exporter->exp_states &= ~EXP_PWSYNC;
4278 afs_NFSRootOnly = 0;
4279 exporter->exp_states |= EXP_SUBMOUNTS;
4281 afs_NFSRootOnly = 1;
4282 exporter->exp_states &= ~EXP_SUBMOUNTS;
4291 * VIOC_GAG (44) - Silence Cache Manager
4295 * \param[in] ain the flags to either gag or de-gag the cache manager
4296 * \param[out] aout not in use
4298 * \retval EACCES Error if the user doesn't have super-user credentials
4300 * \post set the gag flags, then show these flags
4304 struct gaginfo *gagflags;
4306 if (!afs_osi_suser(*acred))
4309 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4310 if (gagflags == NULL)
4312 afs_showflags = gagflags->showflags;
4318 * VIOC_TWIDDLE (45) - Adjust RX knobs
4322 * \param[in] ain the previous settings of the 'knobs'
4323 * \param[out] aout not in use
4325 * \retval EACCES Error if the user doesn't have super-user credentials
4327 * \post build out the struct rxp, from a struct rx
4329 DECL_PIOCTL(PTwiddleRx)
4331 struct rxparams *rxp;
4333 if (!afs_osi_suser(*acred))
4336 rxp = afs_pd_inline(ain, sizeof(*rxp));
4340 if (rxp->rx_initReceiveWindow)
4341 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4342 if (rxp->rx_maxReceiveWindow)
4343 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4344 if (rxp->rx_initSendWindow)
4345 rx_initSendWindow = rxp->rx_initSendWindow;
4346 if (rxp->rx_maxSendWindow)
4347 rx_maxSendWindow = rxp->rx_maxSendWindow;
4348 if (rxp->rxi_nSendFrags)
4349 rxi_nSendFrags = rxp->rxi_nSendFrags;
4350 if (rxp->rxi_nRecvFrags)
4351 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4352 if (rxp->rxi_OrphanFragSize)
4353 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4354 if (rxp->rx_maxReceiveSize) {
4355 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4356 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4358 if (rxp->rx_MyMaxSendSize)
4359 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4365 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4369 * \param[in] ain not in use
4370 * \param[out] aout initial cache manager params
4373 * Error if the initial parameters are bigger than some PIGGYSIZE
4375 * \post return the initial cache manager parameters
4377 DECL_PIOCTL(PGetInitParams)
4379 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4382 return afs_pd_putBytes(aout, &cm_initParams,
4383 sizeof(struct cm_initparams));
4386 #ifdef AFS_SGI65_ENV
4387 /* They took crget() from us, so fake it. */
4392 cr = crdup(get_current_cred());
4393 memset(cr, 0, sizeof(cred_t));
4394 #if CELL || CELL_PREPARE
4402 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4406 * \param[in] ain not in use
4407 * \param[out] aout value of cryptall
4409 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4411 DECL_PIOCTL(PGetRxkcrypt)
4413 return afs_pd_putInt(aout, cryptall);
4417 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4421 * \param[in] ain the argument whether or not things should be encrypted
4422 * \param[out] aout not in use
4425 * Error if the user doesn't have super-user credentials
4427 * Error if the input is too big, or if the input is outside the
4428 * bounds of what it can be set to
4430 * \post set whether or not things should be encrypted
4433 * may need to be modified at a later date to take into account
4434 * other values for cryptall (beyond true or false)
4436 DECL_PIOCTL(PSetRxkcrypt)
4440 if (!afs_osi_suser(*acred))
4442 if (afs_pd_getInt(ain, &tmpval) != 0)
4444 /* if new mappings added later this will need to be changed */
4445 if (tmpval != 0 && tmpval != 1)
4451 #ifdef AFS_NEED_CLIENTCONTEXT
4453 * Create new credentials to correspond to a remote user with given
4454 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4455 * provide pioctl (and other) services to foreign clients (i.e. nfs
4456 * clients) by using this call to `become' the client.
4459 #define PIOCTL_HEADER 6
4461 HandleClientContext(struct afs_ioctl *ablob, int *com,
4462 afs_ucred_t **acred, afs_ucred_t *credp)
4465 afs_uint32 hostaddr;
4466 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4467 struct afs_exporter *exporter, *outexporter;
4468 afs_ucred_t *newcred;
4469 struct unixuser *au;
4470 afs_uint32 comp = *com & 0xff00;
4472 #if defined(AFS_SUN510_ENV)
4476 #if defined(AFS_SGIMP_ENV)
4477 osi_Assert(ISAFS_GLOCK());
4479 AFS_STATCNT(HandleClientContext);
4480 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4481 /* Must at least include the PIOCTL_HEADER header words
4482 * required by the protocol */
4483 return EINVAL; /* Too small to be good */
4485 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4486 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4488 osi_FreeLargeSpace(inData);
4492 /* Extract information for remote user */
4493 hostaddr = *((afs_uint32 *) ain);
4494 ain += sizeof(hostaddr);
4495 uid = *((afs_uint32 *) ain);
4497 g0 = *((afs_uint32 *) ain);
4499 g1 = *((afs_uint32 *) ain);
4501 *com = *((afs_uint32 *) ain);
4502 ain += sizeof(afs_int32);
4503 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4506 * Of course, one must be root for most of these functions, but
4507 * we'll allow (for knfs) you to set things if the pag is 0 and
4508 * you're setting tokens or unlogging.
4511 if (!afs_osi_suser(credp)) {
4512 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4513 /* Since SGI's suser() returns explicit failure after the call.. */
4516 /* check for acceptable opcodes for normal folks, which are, so far,
4517 * get/set tokens, sysname, and unlog.
4519 if (i != 9 && i != 3 && i != 38 && i != 8) {
4520 osi_FreeLargeSpace(inData);
4525 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4526 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4527 osi_FreeLargeSpace(inData);
4530 * We map uid 0 to nobody to match the mapping that the nfs
4531 * server does and to ensure that the suser() calls in the afs
4532 * code fails for remote client roots.
4534 uid = afs_nobody; /* NFS_NOBODY == -2 */
4538 #ifdef AFS_AIX41_ENV
4541 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4542 #ifdef AFS_AIX51_ENV
4543 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4544 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4545 #elif defined(AFS_LINUX26_ENV)
4546 # ifdef AFS_LINUX26_ONEGROUP_ENV
4547 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4548 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4549 h = ((g0-0x3f00) >> 14);
4550 h = ((g1-0x3f00) >> 14) + h + h + h;
4551 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4553 afs_set_cr_group_info(newcred, groups_alloc(2));
4554 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4555 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4557 #elif defined(AFS_SUN510_ENV)
4560 crsetgroups(newcred, 2, gids);
4562 newcred->cr_groups[0] = g0;
4563 newcred->cr_groups[1] = g1;
4566 newcred->cr_ngrps = 2;
4567 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4568 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4569 newcred->cr_ngroups = 2;
4571 for (i = 2; i < NGROUPS; i++)
4572 newcred->cr_groups[i] = NOGROUP;
4575 if (!(exporter = exporter_find(exporter_type))) {
4576 /* Exporter wasn't initialized or an invalid exporter type */
4580 if (exporter->exp_states & EXP_PWSYNC) {
4581 if (uid != afs_cr_uid(credp)) {
4583 return ENOEXEC; /* XXX Find a better errno XXX */
4586 afs_set_cr_uid(newcred, uid); /* Only temporary */
4587 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4588 /* The client's pag is the only unique identifier for it */
4589 afs_set_cr_uid(newcred, pag);
4591 if (!code && *com == PSETPAG) {
4592 /* Special case for 'setpag' */
4593 afs_uint32 pagvalue = genpag();
4595 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4597 * Note that we leave the 'outexporter' struct held so it won't
4600 au->exporter = outexporter;
4601 if (ablob->out_size >= 4) {
4602 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4605 afs_PutUser(au, WRITE_LOCK);
4608 return PSETPAG; /* Special return for setpag */
4610 EXP_RELE(outexporter);
4613 *com = (*com) | comp;
4616 #endif /* AFS_NEED_CLIENTCONTEXT */
4620 * VIOC_GETCPREFS (50) - Get client interface
4624 * \param[in] ain sprefrequest input
4625 * \param[out] aout spref information
4627 * \retval EIO Error if the afs daemon hasn't started yet
4628 * \retval EINVAL Error if some of the standard args aren't set
4631 * get all interface addresses and other information of the client
4634 DECL_PIOCTL(PGetCPrefs)
4636 struct sprefrequest *spin; /* input */
4637 struct sprefinfo *spout; /* output */
4638 struct spref *srvout; /* one output component */
4642 AFS_STATCNT(PGetCPrefs);
4643 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4644 return EIO; /* Inappropriate ioctl for device */
4646 spin = afs_pd_inline(ain, sizeof(*spin));
4650 /* Output spout relies on writing past the end of arrays. It's horrible,
4651 * but I'm not quite brave enough to tackle it yet */
4652 spout = (struct sprefinfo *)aout->ptr;
4654 maxNumber = spin->num_servers; /* max addrs this time */
4655 srvout = spout->servers;
4657 ObtainReadLock(&afs_xinterface);
4659 /* copy out the client interface information from the
4660 * kernel data structure "interface" to the output buffer
4662 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4663 && (j < maxNumber); i++, j++, srvout++)
4664 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4666 spout->num_servers = j;
4667 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4669 if (i >= afs_cb_interface.numberOfInterfaces)
4670 spout->next_offset = 0; /* start from beginning again */
4672 spout->next_offset = spin->offset + j;
4674 ReleaseReadLock(&afs_xinterface);
4679 * VIOC_SETCPREFS (51) - Set client interface
4683 * \param[in] ain the interfaces you want set
4684 * \param[out] aout not in use
4686 * \retval EIO Error if the afs daemon hasn't started yet
4687 * \retval EINVAL Error if the input is too large for the struct
4688 * \retval ENOMEM Error if there are too many servers
4690 * \post set the callbak interfaces addresses to those of the hosts
4692 DECL_PIOCTL(PSetCPrefs)
4696 struct setspref *sin;
4699 AFS_STATCNT(PSetCPrefs);
4700 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4701 return EIO; /* Inappropriate ioctl for device */
4703 /* Yuck. Input to this function relies on reading past the end of
4704 * structures. Bodge it for now.
4707 ainSize = ain->remaining;
4709 sin = (struct setspref *)ainPtr;
4711 if (ainSize < sizeof(struct setspref))
4713 #if 0 /* num_servers is unsigned */
4714 if (sin->num_servers < 0)
4717 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4720 ObtainWriteLock(&afs_xinterface, 412);
4721 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4722 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4723 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4725 ReleaseWriteLock(&afs_xinterface);
4730 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4735 * the last part of a path to a mount point, which tells us what to flush
4740 * Error if some of the initial arguments aren't set
4742 * Error if the initial argument for the mount point isn't a directory
4744 * Error if the dcache entry isn't set
4747 * remove all of the mount data from the dcache regarding a
4748 * certain mount point
4750 DECL_PIOCTL(PFlushMount)
4755 struct VenusFid tfid;
4758 struct sysname_info sysState;
4759 afs_size_t offset, len;
4761 AFS_STATCNT(PFlushMount);
4765 if (afs_pd_getStringPtr(ain, &mount) != 0)
4768 code = afs_VerifyVCache(avc, areq);
4771 if (vType(avc) != VDIR) {
4774 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4777 Check_AtSys(avc, mount, &sysState, areq);
4778 ObtainReadLock(&tdc->lock);
4780 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4781 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4782 ReleaseReadLock(&tdc->lock);
4783 afs_PutDCache(tdc); /* we're done with the data */
4784 bufp = sysState.name;
4788 tfid.Cell = avc->f.fid.Cell;
4789 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4790 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4791 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4793 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4799 if (tvc->mvstat != 1) {
4804 #ifdef AFS_BOZONLOCK_ENV
4805 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4807 ObtainWriteLock(&tvc->lock, 649);
4808 ObtainWriteLock(&afs_xcbhash, 650);
4809 afs_DequeueCallback(tvc);
4810 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4811 ReleaseWriteLock(&afs_xcbhash);
4812 /* now find the disk cache entries */
4813 afs_TryToSmush(tvc, *acred, 1);
4814 osi_dnlc_purgedp(tvc);
4815 if (tvc->linkData && !(tvc->f.states & CCore)) {
4816 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4817 tvc->linkData = NULL;
4819 ReleaseWriteLock(&tvc->lock);
4820 #ifdef AFS_BOZONLOCK_ENV
4821 afs_BozonUnlock(&tvc->pvnLock, tvc);
4825 if (sysState.allocked)
4826 osi_FreeLargeSpace(bufp);
4831 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4835 * \param[in] ain the flags that control which stats to use
4836 * \param[out] aout not in use
4838 * \retval EACCES Error if the user doesn't have super-user credentials
4839 * \retval EINVAL Error if the flag input is too long
4842 * either enable process RPCStats, disable process RPCStats,
4843 * or clear the process RPCStats
4845 DECL_PIOCTL(PRxStatProc)
4849 if (!afs_osi_suser(*acred))
4852 if (afs_pd_getInt(ain, &flags) != 0)
4855 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4858 if (flags & AFSCALL_RXSTATS_ENABLE) {
4859 rx_enableProcessRPCStats();
4861 if (flags & AFSCALL_RXSTATS_DISABLE) {
4862 rx_disableProcessRPCStats();
4864 if (flags & AFSCALL_RXSTATS_CLEAR) {
4865 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4872 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4876 * \param[in] ain the flags that control which statistics to use
4877 * \param[out] aout not in use
4879 * \retval EACCES Error if the user doesn't have super-user credentials
4880 * \retval EINVAL Error if the flag input is too long
4883 * either enable peer RPCStatws, disable peer RPCStats,
4884 * or clear the peer RPCStats
4886 DECL_PIOCTL(PRxStatPeer)
4890 if (!afs_osi_suser(*acred))
4893 if (afs_pd_getInt(ain, &flags) != 0)
4896 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4899 if (flags & AFSCALL_RXSTATS_ENABLE) {
4900 rx_enablePeerRPCStats();
4902 if (flags & AFSCALL_RXSTATS_DISABLE) {
4903 rx_disablePeerRPCStats();
4905 if (flags & AFSCALL_RXSTATS_CLEAR) {
4906 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4911 DECL_PIOCTL(PPrefetchFromTape)
4915 struct afs_conn *tc;
4916 struct rx_call *tcall;
4917 struct AFSVolSync tsync;
4918 struct AFSFetchStatus OutStatus;
4919 struct AFSCallBack CallBack;
4920 struct VenusFid tfid;
4923 struct rx_connection *rxconn;
4925 AFS_STATCNT(PPrefetchFromTape);
4929 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4931 Fid = &avc->f.fid.Fid;
4933 tfid.Cell = avc->f.fid.Cell;
4934 tfid.Fid.Volume = Fid->Volume;
4935 tfid.Fid.Vnode = Fid->Vnode;
4936 tfid.Fid.Unique = Fid->Unique;
4938 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4940 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4941 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4944 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4945 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4948 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
4952 tcall = rx_NewCall(rxconn);
4954 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4957 rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
4959 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
4961 code = rx_EndCall(tcall, code);
4965 } while (afs_Analyze
4966 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
4967 SHARED_LOCK, NULL));
4968 /* This call is done only to have the callback things handled correctly */
4969 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
4975 return afs_pd_putInt(aout, outval);
4981 struct afs_conn *tc;
4983 struct FsCmdInputs *Inputs;
4984 struct FsCmdOutputs *Outputs;
4985 struct VenusFid tfid;
4987 struct rx_connection *rxconn;
4992 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
4996 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
4997 if (Outputs == NULL)
5002 Fid = &avc->f.fid.Fid;
5004 tfid.Cell = avc->f.fid.Cell;
5005 tfid.Fid.Volume = Fid->Volume;
5006 tfid.Fid.Vnode = Fid->Vnode;
5007 tfid.Fid.Unique = Fid->Unique;
5009 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5010 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5011 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5015 if (Inputs->command) {
5017 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5021 RXAFS_FsCmd(rxconn, Fid, Inputs,
5022 (struct FsCmdOutputs *)aout);
5026 } while (afs_Analyze
5027 (tc, rxconn, code, &tvc->f.fid, areq,
5028 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5029 /* This call is done to have the callback things handled correctly */
5030 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5031 } else { /* just a status request, return also link data */
5033 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5034 Outputs->chars[0] = 0;
5035 if (vType(tvc) == VLNK) {
5036 ObtainWriteLock(&tvc->lock, 555);
5037 if (afs_HandleLink(tvc, areq) == 0)
5038 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5039 ReleaseWriteLock(&tvc->lock);
5048 DECL_PIOCTL(PNewUuid)
5050 /*AFS_STATCNT(PNewUuid); */
5051 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5052 return EIO; /* Inappropriate ioctl for device */
5054 if (!afs_osi_suser(*acred))
5057 ObtainWriteLock(&afs_xinterface, 555);
5058 afs_uuid_create(&afs_cb_interface.uuid);
5059 ReleaseWriteLock(&afs_xinterface);
5060 ForceAllNewConnections();
5064 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5066 DECL_PIOCTL(PSetCachingThreshold)
5068 afs_int32 getting = 1;
5069 afs_int32 setting = 1;
5070 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5072 if (afs_pd_getInt(ain, &threshold) != 0)
5078 if (setting == 0 && getting == 0)
5082 * If setting, set first, and return the value now in effect
5085 if (!afs_osi_suser(*acred))
5087 cache_bypass_threshold = threshold;
5088 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5089 /* TODO: move to separate pioctl, or enhance pioctl */
5090 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5093 /* Return the current size threshold */
5095 return afs_pd_putInt(aout, cache_bypass_threshold);
5100 #endif /* defined(AFS_CACHE_BYPASS) */
5102 DECL_PIOCTL(PCallBackAddr)
5105 afs_uint32 addr, code;
5109 struct afs_conn *tc;
5111 struct unixuser *tu;
5112 struct srvAddr **addrs;
5113 struct rx_connection *rxconn;
5115 /*AFS_STATCNT(PCallBackAddr); */
5116 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5117 return EIO; /* Inappropriate ioctl for device */
5119 if (!afs_osi_suser(acred))
5122 if (afs_pd_getInt(ain, &addr) != 0)
5125 ObtainReadLock(&afs_xinterface);
5126 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5127 if (afs_cb_interface.addr_in[i] == addr)
5131 ReleaseWriteLock(&afs_xinterface);
5133 if (afs_cb_interface.addr_in[i] != addr)
5136 ObtainReadLock(&afs_xserver); /* Necessary? */
5137 ObtainReadLock(&afs_xsrvAddr);
5140 for (i = 0; i < NSERVERS; i++) {
5141 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5146 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5147 osi_Assert(addrs != NULL);
5149 for (i = 0; i < NSERVERS; i++) {
5150 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5151 if (j >= srvAddrCount)
5157 ReleaseReadLock(&afs_xsrvAddr);
5158 ReleaseReadLock(&afs_xserver);
5160 for (i = 0; i < j; i++) {
5166 /* vlserver has no callback conn */
5167 if (sa->sa_portal == AFS_VLPORT) {
5171 if (!ts->cell) /* not really an active server, anyway, it must */
5172 continue; /* have just been added by setsprefs */
5174 /* get a connection, even if host is down; bumps conn ref count */
5175 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5176 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5177 1 /*force */ , 1 /*create */ , SHARED_LOCK, &rxconn);
5178 afs_PutUser(tu, SHARED_LOCK);
5182 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5183 if (sa->sa_flags & SRVADDR_ISDOWN) {
5184 rx_SetConnDeadTime(rxconn, 3);
5186 #ifdef RX_ENABLE_LOCKS
5188 #endif /* RX_ENABLE_LOCKS */
5189 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5190 #ifdef RX_ENABLE_LOCKS
5192 #endif /* RX_ENABLE_LOCKS */
5194 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5195 } /* Outer loop over addrs */
5196 #endif /* UKERNEL */
5200 DECL_PIOCTL(PDiscon)
5202 static afs_int32 mode = 1; /* Start up in 'off' */
5203 afs_int32 force = 0;
5206 struct vrequest lreq;
5208 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5209 if (!afs_osi_suser(*acred))
5213 mode = flags[0] - 1;
5215 afs_ConflictPolicy = flags[1] - 1;
5219 /* Fake InitReq support for UID override */
5220 memset(&lreq, 0, sizeof(lreq));
5221 lreq.uid = flags[3];
5222 areq = &lreq; /* override areq we got */
5226 * All of these numbers are hard coded in fs.c. If they
5227 * change here, they should change there and vice versa
5230 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5231 if (!AFS_IS_DISCONNECTED) {
5232 ObtainWriteLock(&afs_discon_lock, 999);
5233 afs_DisconGiveUpCallbacks();
5234 afs_RemoveAllConns();
5235 afs_is_disconnected = 1;
5236 afs_is_discon_rw = 1;
5237 ReleaseWriteLock(&afs_discon_lock);
5240 case 1: /* Fully connected, ("online" mode). */
5241 ObtainWriteLock(&afs_discon_lock, 998);
5244 afs_MarkAllServersUp();
5245 code = afs_ResyncDisconFiles(areq, *acred);
5248 if (code && !force) {
5249 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5250 "Please retry or use \"force\".\n");
5254 afs_DisconDiscardAll(*acred);
5256 afs_ClearAllStatdFlag();
5257 afs_is_disconnected = 0;
5258 afs_is_discon_rw = 0;
5259 afs_warnuser("\nSync succeeded. You are back online.\n");
5262 ReleaseWriteLock(&afs_discon_lock);
5274 return afs_pd_putInt(aout, mode);
5277 #define MAX_PIOCTL_TOKENS 10
5279 DECL_PIOCTL(PSetTokens2)
5282 int i, cellNum, primaryFlag;
5284 struct unixuser *tu;
5285 struct vrequest treq;
5286 struct ktc_setTokenData tokenSet;
5287 struct ktc_tokenUnion decodedToken;
5289 memset(&tokenSet, 0, sizeof(tokenSet));
5291 AFS_STATCNT(PSetTokens2);
5292 if (!afs_resourceinit_flag)
5295 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5297 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5298 afs_pd_xdrEnd(ain, &xdrs);
5302 afs_pd_xdrEnd(ain, &xdrs);
5304 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5305 * process from using up the whole of the kernel memory by allocating
5308 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5309 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5313 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5315 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5319 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5320 if (_settok_setParentPag(acred) == 0) {
5321 afs_InitReq(&treq, *acred);
5326 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5327 /* Free any tokens that we've already got */
5328 afs_FreeTokens(&tu->tokens);
5330 /* Iterate across the set of tokens we've received, and stuff them
5331 * into this user's tokenJar
5333 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5334 xdrmem_create(&xdrs,
5335 tokenSet.tokens.tokens_val[i].token_opaque_val,
5336 tokenSet.tokens.tokens_val[i].token_opaque_len,
5339 memset(&decodedToken, 0, sizeof(decodedToken));
5340 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5348 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5349 /* This is untidy - the old token interface supported passing
5350 * the primaryFlag as part of the token interface. Current
5351 * OpenAFS userland never sets this, but it's specified as being
5352 * part of the XG interface, so we should probably still support
5353 * it. Rather than add it to our AddToken interface, just handle
5356 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5357 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5361 /* XXX - We should think more about destruction here. It's likely that
5362 * there is key material in what we're about to throw away, which
5363 * we really should zero out before giving back to the allocator */
5364 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5367 tu->states |= UHasTokens;
5368 tu->states &= ~UTokensBad;
5369 afs_SetPrimary(tu, primaryFlag);
5370 tu->tokenTime = osi_Time();
5372 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5375 afs_ResetUserConns(tu);
5376 afs_PutUser(tu, WRITE_LOCK);
5381 DECL_PIOCTL(PGetTokens2)
5383 struct cell *cell = NULL;
5384 struct unixuser *tu = NULL;
5386 char *cellName = NULL;
5391 struct ktc_setTokenData tokenSet;
5393 AFS_STATCNT(PGetTokens);
5394 if (!afs_resourceinit_flag)
5397 memset(&tokenSet, 0, sizeof(tokenSet));
5399 /* No input data - return tokens for primary cell */
5400 /* 4 octets of data is an iterator count */
5401 /* Otherwise, treat as string & return tokens for that cell name */
5403 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5404 /* Integer iterator - return tokens for the n'th cell found for user */
5405 if (afs_pd_getInt(ain, &iterator) != 0)
5407 tu = getNthCell(areq->uid, iterator);
5409 if (afs_pd_remaining(ain) > 0) {
5410 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5415 code = _settok_tokenCell(cellName, &cellNum, NULL);
5418 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5425 if (!(tu->states & UHasTokens)
5426 || !afs_HasValidTokens(tu->tokens, now)) {
5427 tu->states |= (UTokensBad | UNeedsReset);
5428 afs_PutUser(tu, READ_LOCK);
5432 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5436 cell = afs_GetCell(tu->cell, READ_LOCK);
5437 tokenSet.cell = cell->cellName;
5438 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5439 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5443 afs_pd_xdrEnd(aout, &xdrs);
5446 tokenSet.cell = NULL;
5449 afs_PutUser(tu, READ_LOCK);
5451 afs_PutCell(cell, READ_LOCK);
5452 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5457 DECL_PIOCTL(PNFSNukeCreds)
5461 struct unixuser *tu;
5463 AFS_STATCNT(PUnlog);
5464 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5465 return EIO; /* Inappropriate ioctl for device */
5467 if (afs_pd_getUint(ain, &addr) != 0)
5470 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5471 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5472 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5473 afs_PutUser(tu, SHARED_LOCK);
5476 afs_PutUser(tu, SHARED_LOCK);
5477 } else if (!afs_osi_suser(acred)) {
5481 ObtainWriteLock(&afs_xuser, 227);
5482 for (i = 0; i < NUSERS; i++) {
5483 for (tu = afs_users[i]; tu; tu = tu->next) {
5484 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5486 ReleaseWriteLock(&afs_xuser);
5488 afs_LockUser(tu, WRITE_LOCK, 367);
5490 tu->states &= ~UHasTokens;
5491 afs_FreeTokens(&tu->tokens);
5492 afs_ResetUserConns(tu);
5493 afs_PutUser(tu, WRITE_LOCK);
5494 ObtainWriteLock(&afs_xuser, 228);
5496 /* set the expire times to 0, causes
5497 * afs_GCUserData to remove this entry
5500 #endif /* UKERNEL */
5504 ReleaseWriteLock(&afs_xuser);