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);
670 # if defined(AFS_SUN57_ENV)
674 # elif defined(AFS_SUN54_ENV)
679 if (code = getf(uap->fd, &fd)) {
683 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
684 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
685 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
686 /* This is an AFS vnode */
687 if (((uap->com >> 8) & 0xff) == 'V') {
688 struct afs_ioctl *datap;
691 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
692 code=copyin_afs_ioctl((char *)uap->arg, datap);
694 osi_FreeSmallSpace(datap);
696 # if defined(AFS_SUN54_ENV)
703 code = HandleIoctl(tvc, uap->com, datap);
704 osi_FreeSmallSpace(datap);
710 # if defined(AFS_SUN57_ENV)
712 # elif defined(AFS_SUN54_ENV)
718 code = ioctl(uap, rvp);
722 #elif defined(AFS_LINUX22_ENV)
723 struct afs_ioctl_sys {
728 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
731 struct afs_ioctl_sys ua, *uap = &ua;
735 AFS_STATCNT(afs_xioctl);
740 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
741 /* This is an AFS vnode */
742 if (((uap->com >> 8) & 0xff) == 'V') {
743 struct afs_ioctl *datap;
745 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
746 code = copyin_afs_ioctl((char *)uap->arg, datap);
748 osi_FreeSmallSpace(datap);
752 code = HandleIoctl(tvc, uap->com, datap);
753 osi_FreeSmallSpace(datap);
761 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
769 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
773 int ioctlDone = 0, code = 0;
775 AFS_STATCNT(afs_xioctl);
776 if ((code = fdgetf(p, uap->fd, &fd)))
778 if (fd->f_type == DTYPE_VNODE) {
779 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
780 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
781 /* This is an AFS vnode */
782 if (((uap->com >> 8) & 0xff) == 'V') {
783 struct afs_ioctl *datap;
785 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
786 code = copyin_afs_ioctl((char *)uap->arg, datap);
788 osi_FreeSmallSpace(datap);
792 code = HandleIoctl(tvc, uap->com, datap);
793 osi_FreeSmallSpace(datap);
801 return ioctl(p, uap, retval);
805 #elif defined(AFS_XBSD_ENV)
806 # if defined(AFS_FBSD_ENV)
809 afs_xioctl(struct thread *td, struct ioctl_args *uap,
812 afs_proc_t *p = td->td_proc;
813 # elif defined(AFS_NBSD_ENV)
815 afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
825 afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
828 struct filedesc *fdp;
830 int ioctlDone = 0, code = 0;
833 AFS_STATCNT(afs_xioctl);
834 #if defined(AFS_NBSD40_ENV)
835 fdp = p->l_proc->p_fd;
839 #if defined(AFS_NBSD50_ENV)
840 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL)
843 if ((uap->fd >= fdp->fd_nfiles)
844 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL))
847 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
849 /* first determine whether this is any sort of vnode */
850 if (fd->f_type == DTYPE_VNODE) {
851 /* good, this is a vnode; next see if it is an AFS vnode */
852 # if defined(AFS_OBSD_ENV)
854 IsAfsVnode((struct vnode *)fd->
855 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
857 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
859 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)) {
860 /* This is an AFS vnode */
861 #if defined(AFS_NBSD50_ENV)
862 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
864 if (((uap->com >> 8) & 0xff) == 'V') {
866 struct afs_ioctl *datap;
867 printf("%s %lx\n", __func__, SCARG(uap, com));
869 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
870 #if defined(AFS_NBSD50_ENV)
871 code = copyin_afs_ioctl(SCARG(uap, data), datap);
873 code = copyin_afs_ioctl((char *)uap->arg, datap);
876 osi_FreeSmallSpace(datap);
880 #if defined(AFS_NBSD50_ENV)
881 code = HandleIoctl(tvc, SCARG(uap, com), datap);
883 code = HandleIoctl(tvc, uap->com, datap);
885 osi_FreeSmallSpace(datap);
892 #if defined(AFS_NBSD50_ENV)
893 fd_putfile(SCARG(uap, fd));
897 # if defined(AFS_FBSD_ENV)
898 return ioctl(td, uap);
899 # elif defined(AFS_OBSD_ENV)
900 code = sys_ioctl(p, uap, retval);
901 # elif defined(AFS_NBSD_ENV)
902 code = sys_ioctl(p, uap, retval);
908 #elif defined(UKERNEL)
916 } *uap = (struct a *)get_user_struct()->u_ap;
919 int ioctlDone = 0, code = 0;
921 AFS_STATCNT(afs_xioctl);
926 /* first determine whether this is any sort of vnode */
927 if (fd->f_type == DTYPE_VNODE) {
928 /* good, this is a vnode; next see if it is an AFS vnode */
929 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
930 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
931 /* This is an AFS vnode */
932 if (((uap->com >> 8) & 0xff) == 'V') {
933 struct afs_ioctl *datap;
935 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
936 code=copyin_afs_ioctl((char *)uap->arg, datap);
938 osi_FreeSmallSpace(datap);
941 return (setuerror(code), code);
943 code = HandleIoctl(tvc, uap->com, datap);
944 osi_FreeSmallSpace(datap);
957 #endif /* AFS_HPUX102_ENV */
959 #if defined(AFS_SGI_ENV)
960 /* "pioctl" system call entry point; just pass argument to the parameterized
969 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
973 AFS_STATCNT(afs_pioctl);
975 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
977 # ifdef AFS_SGI64_ENV
984 #elif defined(AFS_FBSD_ENV)
986 afs_pioctl(struct thread *td, void *args, int *retval)
993 } *uap = (struct a *)args;
995 AFS_STATCNT(afs_pioctl);
996 return (afs_syscall_pioctl
997 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
1000 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1002 afs_pioctl(afs_proc_t *p, void *args, int *retval)
1009 } *uap = (struct a *)args;
1011 AFS_STATCNT(afs_pioctl);
1012 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
1013 return (afs_syscall_pioctl
1014 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1017 return (afs_syscall_pioctl
1018 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1019 # if defined(AFS_FBSD_ENV)
1022 p->p_cred->pc_ucred));
1029 /* macro to avoid adding any more #ifdef's to pioctl code. */
1030 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1031 #define PIOCTL_FREE_CRED() crfree(credp)
1033 #define PIOCTL_FREE_CRED()
1038 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1039 rval_t *vvp, afs_ucred_t *credp)
1041 #ifdef AFS_DARWIN100_ENV
1042 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1043 int follow, afs_ucred_t *credp)
1044 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1045 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1048 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1052 struct afs_ioctl data;
1053 #ifdef AFS_NEED_CLIENTCONTEXT
1054 afs_ucred_t *tmpcred = NULL;
1056 #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)
1057 afs_ucred_t *foreigncreds = NULL;
1060 struct vnode *vp = NULL;
1061 #ifdef AFS_AIX41_ENV
1062 struct ucred *credp = crref(); /* don't free until done! */
1064 #ifdef AFS_LINUX22_ENV
1065 cred_t *credp = crref(); /* don't free until done! */
1069 AFS_STATCNT(afs_syscall_pioctl);
1071 follow = 1; /* compat. with old venus */
1072 code = copyin_afs_ioctl(cmarg, &data);
1075 #if defined(KERNEL_HAVE_UERROR)
1080 if ((com & 0xff) == PSetClientContext) {
1081 #ifdef AFS_NEED_CLIENTCONTEXT
1082 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1083 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1085 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1089 crfree(foreigncreds);
1092 #if defined(KERNEL_HAVE_UERROR)
1093 return (setuerror(code), code);
1098 #else /* AFS_NEED_CLIENTCONTEXT */
1100 #endif /* AFS_NEED_CLIENTCONTEXT */
1102 #ifdef AFS_NEED_CLIENTCONTEXT
1105 * We could have done without temporary setting the u.u_cred below
1106 * (foreigncreds could be passed as param the pioctl modules)
1107 * but calls such as afs_osi_suser() doesn't allow that since it
1108 * references u.u_cred directly. We could, of course, do something
1109 * like afs_osi_suser(cred) which, I think, is better since it
1110 * generalizes and supports multi cred environments...
1112 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1114 credp = foreigncreds;
1115 #elif defined(AFS_AIX41_ENV)
1116 tmpcred = crref(); /* XXX */
1117 crset(foreigncreds);
1118 #elif defined(AFS_HPUX101_ENV)
1119 tmpcred = p_cred(u.u_procp);
1120 set_p_cred(u.u_procp, foreigncreds);
1121 #elif defined(AFS_SGI_ENV)
1122 tmpcred = OSI_GET_CURRENT_CRED();
1123 OSI_SET_CURRENT_CRED(foreigncreds);
1126 u.u_cred = foreigncreds;
1129 #endif /* AFS_NEED_CLIENTCONTEXT */
1130 if ((com & 0xff) == 15) {
1131 /* special case prefetch so entire pathname eval occurs in helper process.
1132 * otherwise, the pioctl call is essentially useless */
1133 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1135 Prefetch(path, &data, follow,
1136 foreigncreds ? foreigncreds : credp);
1138 code = Prefetch(path, &data, follow, osi_curcred());
1141 #if defined(KERNEL_HAVE_UERROR)
1148 #ifdef AFS_AIX41_ENV
1150 lookupname(path, USR, follow, NULL, &vp,
1151 foreigncreds ? foreigncreds : credp);
1153 #ifdef AFS_LINUX22_ENV
1154 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1156 vp = (struct vnode *)dp->d_inode;
1158 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1159 #if defined(AFS_FBSD80_ENV) /* XXX check on 7x */
1162 #endif /* AFS_FBSD80_ENV */
1163 #endif /* AFS_LINUX22_ENV */
1164 #endif /* AFS_AIX41_ENV */
1168 #if defined(KERNEL_HAVE_UERROR)
1176 #if defined(AFS_SUN510_ENV)
1177 if (vp && !IsAfsVnode(vp)) {
1178 struct vnode *realvp;
1180 #ifdef AFS_SUN511_ENV
1181 (VOP_REALVP(vp, &realvp, NULL) == 0)
1183 (VOP_REALVP(vp, &realvp) == 0)
1186 struct vnode *oldvp = vp;
1194 /* now make the call if we were passed no file, or were passed an AFS file */
1195 if (!vp || IsAfsVnode(vp)) {
1196 #if defined(AFS_SUN5_ENV)
1197 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1198 #elif defined(AFS_AIX41_ENV)
1200 struct ucred *cred1, *cred2;
1203 cred1 = cred2 = foreigncreds;
1205 cred1 = cred2 = credp;
1207 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1208 if (cred1 != cred2) {
1209 /* something changed the creds */
1213 #elif defined(AFS_HPUX101_ENV)
1215 struct ucred *cred = p_cred(u.u_procp);
1216 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1218 #elif defined(AFS_SGI_ENV)
1221 credp = OSI_GET_CURRENT_CRED();
1222 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1224 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1225 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1226 #elif defined(UKERNEL)
1227 code = afs_HandlePioctl(vp, com, &data, follow,
1228 &(get_user_struct()->u_cred));
1230 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1233 #if defined(KERNEL_HAVE_UERROR)
1236 code = EINVAL; /* not in /afs */
1241 #if defined(AFS_NEED_CLIENTCONTEXT)
1243 #ifdef AFS_AIX41_ENV
1244 crset(tmpcred); /* restore original credentials */
1246 #if defined(AFS_HPUX101_ENV)
1247 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1248 #elif defined(AFS_SGI_ENV)
1249 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1250 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1251 credp = tmpcred; /* restore original credentials */
1253 osi_curcred() = tmpcred; /* restore original credentials */
1254 #endif /* AFS_HPUX101_ENV */
1255 crfree(foreigncreds);
1258 #endif /* AFS_NEED_CLIENTCONTEXT */
1260 #ifdef AFS_LINUX22_ENV
1263 #if defined(AFS_FBSD80_ENV)
1264 if (VOP_ISLOCKED(vp))
1266 #endif /* AFS_FBSD80_ENV */
1267 AFS_RELE(vp); /* put vnode back */
1271 #if defined(KERNEL_HAVE_UERROR)
1274 return (getuerror());
1280 #ifdef AFS_DARWIN100_ENV
1282 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1283 int follow, afs_ucred_t *credp)
1285 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1286 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1291 #define MAXPIOCTLTOKENLEN \
1292 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1295 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1296 struct afs_ioctl *ablob, int afollow,
1297 afs_ucred_t **acred)
1300 struct vrequest treq;
1302 afs_int32 function, device;
1303 struct afs_pdata input, output;
1304 struct afs_pdata copyInput, copyOutput;
1306 pioctlFunction *pioctlSw;
1308 struct afs_fakestat_state fakestate;
1310 memset(&input, 0, sizeof(input));
1311 memset(&output, 0, sizeof(output));
1313 avc = avp ? VTOAFS(avp) : NULL;
1314 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1315 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1316 AFS_STATCNT(HandlePioctl);
1318 code = afs_InitReq(&treq, *acred);
1322 afs_InitFakeStat(&fakestate);
1324 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1328 device = (acom & 0xff00) >> 8;
1330 case 'V': /* Original pioctls */
1331 pioctlSw = VpioctlSw;
1332 pioctlSwSize = sizeof(VpioctlSw);
1334 case 'C': /* Coordinated/common pioctls */
1335 pioctlSw = CpioctlSw;
1336 pioctlSwSize = sizeof(CpioctlSw);
1338 case 'O': /* Coordinated/common pioctls */
1339 pioctlSw = OpioctlSw;
1340 pioctlSwSize = sizeof(OpioctlSw);
1346 function = acom & 0xff;
1347 if (function >= (pioctlSwSize / sizeof(char *))) {
1352 /* Do all range checking before continuing */
1353 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1354 ablob->in_size < 0 || ablob->out_size < 0) {
1359 code = afs_pd_alloc(&input, ablob->in_size);
1363 if (ablob->in_size > 0) {
1364 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1365 input.ptr[input.remaining] = '\0';
1370 if ((function == 8 && device == 'V') ||
1371 (function == 7 && device == 'C')) { /* PGetTokens */
1372 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1374 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1380 copyOutput = output;
1383 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1384 ©Output, acred);
1386 outSize = copyOutput.ptr - output.ptr;
1388 if (code == 0 && ablob->out_size > 0) {
1389 if (outSize > ablob->out_size) {
1390 code = E2BIG; /* data wont fit in user buffer */
1391 } else if (outSize) {
1392 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1397 afs_pd_free(&input);
1398 afs_pd_free(&output);
1400 afs_PutFakeStat(&fakestate);
1401 return afs_CheckCode(code, &treq, 41);
1405 * VIOCGETFID (22) - Get file ID quickly
1409 * \param[in] ain not in use
1410 * \param[out] aout fid of requested file
1412 * \retval EINVAL Error if some of the initial arguments aren't set
1414 * \post get the file id of some file
1416 DECL_PIOCTL(PGetFID)
1418 AFS_STATCNT(PGetFID);
1421 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1427 * VIOCSETAL (1) - Set access control list
1431 * \param[in] ain the ACL being set
1432 * \param[out] aout the ACL being set returned
1434 * \retval EINVAL Error if some of the standard args aren't set
1436 * \post Changed ACL, via direct writing to the wire
1439 dummy_PSetAcl(char *ain, char *aout)
1444 DECL_PIOCTL(PSetAcl)
1447 struct afs_conn *tconn;
1448 struct AFSOpaque acl;
1449 struct AFSVolSync tsync;
1450 struct AFSFetchStatus OutStatus;
1451 struct rx_connection *rxconn;
1454 AFS_STATCNT(PSetAcl);
1458 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1460 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1461 if (acl.AFSOpaque_len > 1024)
1465 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1467 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1470 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1471 &acl, &OutStatus, &tsync);
1476 } while (afs_Analyze
1477 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1478 SHARED_LOCK, NULL));
1480 /* now we've forgotten all of the access info */
1481 ObtainWriteLock(&afs_xcbhash, 455);
1483 afs_DequeueCallback(avc);
1484 avc->f.states &= ~(CStatd | CUnique);
1485 ReleaseWriteLock(&afs_xcbhash);
1486 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1487 osi_dnlc_purgedp(avc);
1489 /* SXW - Should we flush metadata here? */
1493 int afs_defaultAsynchrony = 0;
1496 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1500 * \param[in] ain sbstruct (store behind structure) input
1501 * \param[out] aout resulting sbstruct
1504 * Error if the user doesn't have super-user credentials
1506 * Error if there isn't enough access to not check the mode bits
1509 * Changes either the default asynchrony (the amount of data that
1510 * can remain to be written when the cache manager returns control
1511 * to the user), or the asyncrony for the specified file.
1513 DECL_PIOCTL(PStoreBehind)
1515 struct sbstruct sbr;
1517 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1520 if (sbr.sb_default != -1) {
1521 if (afs_osi_suser(*acred))
1522 afs_defaultAsynchrony = sbr.sb_default;
1527 if (avc && (sbr.sb_thisfile != -1)) {
1529 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1530 avc->asynchrony = sbr.sb_thisfile;
1535 memset(&sbr, 0, sizeof(sbr));
1536 sbr.sb_default = afs_defaultAsynchrony;
1538 sbr.sb_thisfile = avc->asynchrony;
1541 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1545 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1549 * \param[in] ain not in use
1550 * \param[out] aout not in use
1552 * \retval EACCES Error if the user doesn't have super-user credentials
1554 * \post set the gcpags to GCPAGS_USERDISABLED
1556 DECL_PIOCTL(PGCPAGs)
1558 if (!afs_osi_suser(*acred)) {
1561 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1566 * VIOCGETAL (2) - Get access control list
1570 * \param[in] ain not in use
1571 * \param[out] aout the ACL
1573 * \retval EINVAL Error if some of the standard args aren't set
1574 * \retval ERANGE Error if the vnode of the file id is too large
1575 * \retval -1 Error if getting the ACL failed
1577 * \post Obtain the ACL, based on file ID
1580 * There is a hack to tell which type of ACL is being returned, checks
1581 * the top 2-bytes of the input size to judge what type of ACL it is,
1582 * only for dfs xlator ACLs
1584 DECL_PIOCTL(PGetAcl)
1586 struct AFSOpaque acl;
1587 struct AFSVolSync tsync;
1588 struct AFSFetchStatus OutStatus;
1590 struct afs_conn *tconn;
1592 struct rx_connection *rxconn;
1595 AFS_STATCNT(PGetAcl);
1598 Fid.Volume = avc->f.fid.Fid.Volume;
1599 Fid.Vnode = avc->f.fid.Fid.Vnode;
1600 Fid.Unique = avc->f.fid.Fid.Unique;
1601 if (avc->f.states & CForeign) {
1603 * For a dfs xlator acl we have a special hack so that the
1604 * xlator will distinguish which type of acl will return. So
1605 * we currently use the top 2-bytes (vals 0-4) to tell which
1606 * type of acl to bring back. Horrible hack but this will
1607 * cause the least number of changes to code size and interfaces.
1609 if (Fid.Vnode & 0xc0000000)
1611 Fid.Vnode |= (ain->remaining << 30);
1613 acl.AFSOpaque_val = aout->ptr;
1615 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1617 acl.AFSOpaque_val[0] = '\0';
1618 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1620 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1625 } while (afs_Analyze
1626 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1627 SHARED_LOCK, NULL));
1630 if (acl.AFSOpaque_len == 0)
1631 afs_pd_skip(aout, 1); /* leave the NULL */
1633 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1639 * PNoop returns success. Used for functions which are not implemented
1640 * or are no longer in use.
1644 * \retval Always returns success
1647 * Functions involved in this:
1648 * 17 (VIOCENGROUP) -- used to be enable group;
1649 * 18 (VIOCDISGROUP) -- used to be disable group;
1650 * 2 (?) -- get/set cache-bypass size threshold
1659 * PBogus returns fail. Used for functions which are not implemented or
1660 * are no longer in use.
1664 * \retval EINVAL Always returns this value
1667 * Functions involved in this:
1673 * 13 (VIOCGETTIME) -- used to be quick check time;
1674 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1675 * 16 (VIOCNOP) -- used to be testing code;
1676 * 19 (VIOCLISTGROUPS) -- used to be list group;
1677 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1678 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1679 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1680 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1681 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1682 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1683 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1684 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1685 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1686 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1687 * 68 (?) -- arla: fetch stats;
1691 AFS_STATCNT(PBogus);
1696 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1700 * \param[in] ain not in use (avc used to pass in file id)
1701 * \param[out] aout cell name
1703 * \retval EINVAL Error if some of the standard args aren't set
1704 * \retval ESRCH Error if the file isn't part of a cell
1706 * \post Get a cell based on a passed in file id
1708 DECL_PIOCTL(PGetFileCell)
1712 AFS_STATCNT(PGetFileCell);
1715 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1719 if (afs_pd_putString(aout, tcell->cellName) != 0)
1722 afs_PutCell(tcell, READ_LOCK);
1727 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1731 * \param[in] ain not in use
1732 * \param[out] aout cell name
1735 * Error if the afs daemon hasn't started yet
1737 * Error if the machine isn't part of a cell, for whatever reason
1739 * \post Get the primary cell that the machine is a part of.
1741 DECL_PIOCTL(PGetWSCell)
1743 struct cell *tcell = NULL;
1745 AFS_STATCNT(PGetWSCell);
1746 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1747 return EIO; /* Inappropriate ioctl for device */
1749 tcell = afs_GetPrimaryCell(READ_LOCK);
1750 if (!tcell) /* no primary cell? */
1753 if (afs_pd_putString(aout, tcell->cellName) != 0)
1755 afs_PutCell(tcell, READ_LOCK);
1760 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1764 * \param[in] ain not in use (user id found via areq)
1765 * \param[out] aout cell name
1768 * Error if the user id doesn't have a primary cell specified
1770 * \post Get the primary cell for a certain user, based on the user's uid
1772 DECL_PIOCTL(PGetUserCell)
1775 struct unixuser *tu;
1778 AFS_STATCNT(PGetUserCell);
1779 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1780 return EIO; /* Inappropriate ioctl for device */
1782 /* return the cell name of the primary cell for this user */
1783 i = UHash(areq->uid);
1784 ObtainWriteLock(&afs_xuser, 224);
1785 for (tu = afs_users[i]; tu; tu = tu->next) {
1786 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1788 ReleaseWriteLock(&afs_xuser);
1789 afs_LockUser(tu, READ_LOCK, 0);
1794 tcell = afs_GetCell(tu->cell, READ_LOCK);
1795 afs_PutUser(tu, READ_LOCK);
1799 if (afs_pd_putString(aout, tcell->cellName) != 0)
1801 afs_PutCell(tcell, READ_LOCK);
1804 ReleaseWriteLock(&afs_xuser);
1809 /* Work out which cell we're changing tokens for */
1811 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1819 if (cellName && strlen(cellName) > 0) {
1820 cell = afs_GetCellByName(cellName, READ_LOCK);
1822 cell = afs_GetPrimaryCell(READ_LOCK);
1833 *cellNum = cell->cellNum;
1834 afs_PutCell(cell, READ_LOCK);
1841 _settok_setParentPag(afs_ucred_t **cred) {
1843 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1845 osi_procname(procname, 256);
1846 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1847 MyPidxx2Pid(MyPidxx), procname);
1848 return setpag(osi_curproc(), cred, -1, &pag, 1);
1850 return setpag(cred, -1, &pag, 1);
1855 * VIOCSETTOK (3) - Set authentication tokens
1859 * \param[in] ain the krb tickets from which to set the afs tokens
1860 * \param[out] aout not in use
1863 * Error if the ticket is either too long or too short
1865 * Error if the AFS initState is below 101
1867 * Error if the cell for which the Token is being set can't be found
1870 * Set the Tokens for a specific cell name, unless there is none set,
1871 * then default to primary
1874 DECL_PIOCTL(PSetTokens)
1879 struct unixuser *tu;
1880 struct ClearToken clear;
1884 struct vrequest treq;
1885 afs_int32 flag, set_parent_pag = 0;
1887 AFS_STATCNT(PSetTokens);
1888 if (!afs_resourceinit_flag) {
1892 if (afs_pd_getInt(ain, &stLen) != 0)
1895 stp = afs_pd_where(ain); /* remember where the ticket is */
1896 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1897 return EINVAL; /* malloc may fail */
1898 if (afs_pd_skip(ain, stLen) != 0)
1901 if (afs_pd_getInt(ain, &size) != 0)
1903 if (size != sizeof(struct ClearToken))
1906 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1909 if (clear.AuthHandle == -1)
1910 clear.AuthHandle = 999; /* more rxvab compat stuff */
1912 if (afs_pd_remaining(ain) != 0) {
1913 /* still stuff left? we've got primary flag and cell name.
1916 if (afs_pd_getInt(ain, &flag) != 0)
1919 /* some versions of gcc appear to need != 0 in order to get this
1921 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1926 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1929 code = _settok_tokenCell(cellName, &cellNum, NULL);
1933 /* default to primary cell, primary id */
1934 code = _settok_tokenCell(NULL, &cellNum, &flag);
1939 if (set_parent_pag) {
1940 if (_settok_setParentPag(acred) == 0) {
1941 afs_InitReq(&treq, *acred);
1946 /* now we just set the tokens */
1947 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1948 /* Set tokens destroys any that are already there */
1949 afs_FreeTokens(&tu->tokens);
1950 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1952 afs_stats_cmfullperf.authent.TicketUpdates++;
1953 afs_ComputePAGStats();
1954 #endif /* AFS_NOSTATS */
1955 tu->states |= UHasTokens;
1956 tu->states &= ~UTokensBad;
1957 afs_SetPrimary(tu, flag);
1958 tu->tokenTime = osi_Time();
1959 afs_ResetUserConns(tu);
1960 afs_NotifyUser(tu, UTokensObtained);
1961 afs_PutUser(tu, WRITE_LOCK);
1967 * VIOCGETVOLSTAT (4) - Get volume status
1971 * \param[in] ain not in use
1972 * \param[out] aout status of the volume
1974 * \retval EINVAL Error if some of the standard args aren't set
1977 * The status of a volume (based on the FID of the volume), or an
1978 * offline message /motd
1980 DECL_PIOCTL(PGetVolumeStatus)
1983 char *offLineMsg = afs_osi_Alloc(256);
1984 char *motd = afs_osi_Alloc(256);
1985 struct afs_conn *tc;
1987 struct AFSFetchVolumeStatus volstat;
1989 struct rx_connection *rxconn;
1992 osi_Assert(offLineMsg != NULL);
1993 osi_Assert(motd != NULL);
1994 AFS_STATCNT(PGetVolumeStatus);
2001 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2003 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
2006 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
2007 &Name, &offLineMsg, &motd);
2012 } while (afs_Analyze
2013 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
2014 SHARED_LOCK, NULL));
2018 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
2019 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2021 if (afs_pd_putString(aout, volName) != 0)
2023 if (afs_pd_putString(aout, offLineMsg) != 0)
2025 if (afs_pd_putString(aout, motd) != 0)
2028 afs_osi_Free(offLineMsg, 256);
2029 afs_osi_Free(motd, 256);
2034 * VIOCSETVOLSTAT (5) - Set volume status
2039 * values to set the status at, offline message, message of the day,
2040 * volume name, minimum quota, maximum quota
2042 * status of a volume, offlines messages, minimum quota, maximumm quota
2045 * Error if some of the standard args aren't set
2047 * Error if the volume is read only, or a backup volume
2049 * Error if the volume can't be accessed
2051 * Error if the volume name, offline message, and motd are too big
2054 * Set the status of a volume, including any offline messages,
2055 * a minimum quota, and a maximum quota
2057 DECL_PIOCTL(PSetVolumeStatus)
2062 struct afs_conn *tc;
2064 struct AFSFetchVolumeStatus volstat;
2065 struct AFSStoreVolumeStatus storeStat;
2067 struct rx_connection *rxconn;
2070 AFS_STATCNT(PSetVolumeStatus);
2074 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2076 if (tvp->states & (VRO | VBackup)) {
2077 afs_PutVolume(tvp, READ_LOCK);
2080 afs_PutVolume(tvp, READ_LOCK);
2085 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2088 if (afs_pd_getStringPtr(ain, &volName) != 0)
2090 if (strlen(volName) > 32)
2093 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2095 if (strlen(offLineMsg) > 256)
2098 if (afs_pd_getStringPtr(ain, &motd) != 0)
2100 if (strlen(motd) > 256)
2103 /* Done reading ... */
2106 if (volstat.MinQuota != -1) {
2107 storeStat.MinQuota = volstat.MinQuota;
2108 storeStat.Mask |= AFS_SETMINQUOTA;
2110 if (volstat.MaxQuota != -1) {
2111 storeStat.MaxQuota = volstat.MaxQuota;
2112 storeStat.Mask |= AFS_SETMAXQUOTA;
2115 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2117 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2120 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2121 volName, offLineMsg, motd);
2126 } while (afs_Analyze
2127 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2128 SHARED_LOCK, NULL));
2132 /* we are sending parms back to make compat. with prev system. should
2133 * change interface later to not ask for current status, just set new
2136 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2138 if (afs_pd_putString(aout, volName) != 0)
2140 if (afs_pd_putString(aout, offLineMsg) != 0)
2142 if (afs_pd_putString(aout, motd) != 0)
2149 * VIOCFLUSH (6) - Invalidate cache entry
2153 * \param[in] ain not in use
2154 * \param[out] aout not in use
2156 * \retval EINVAL Error if some of the standard args aren't set
2158 * \post Flush any information the cache manager has on an entry
2162 AFS_STATCNT(PFlush);
2165 #ifdef AFS_BOZONLOCK_ENV
2166 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2168 ObtainWriteLock(&avc->lock, 225);
2169 afs_ResetVCache(avc, *acred);
2170 ReleaseWriteLock(&avc->lock);
2171 #ifdef AFS_BOZONLOCK_ENV
2172 afs_BozonUnlock(&avc->pvnLock, avc);
2178 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2183 * the last component in a path, related to mountpoint that we're
2184 * looking for information about
2186 * volume, cell, link data
2188 * \retval EINVAL Error if some of the standard args aren't set
2189 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2190 * \retval EIO Error if the link data can't be accessed
2192 * \post Get the volume, and cell, as well as the link data for a mount point
2194 DECL_PIOCTL(PNewStatMount)
2199 struct VenusFid tfid;
2202 struct sysname_info sysState;
2203 afs_size_t offset, len;
2205 AFS_STATCNT(PNewStatMount);
2209 if (afs_pd_getStringPtr(ain, &name) != 0)
2212 code = afs_VerifyVCache(avc, areq);
2215 if (vType(avc) != VDIR) {
2218 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2221 Check_AtSys(avc, name, &sysState, areq);
2222 ObtainReadLock(&tdc->lock);
2224 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2225 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2226 ReleaseReadLock(&tdc->lock);
2227 afs_PutDCache(tdc); /* we're done with the data */
2228 bufp = sysState.name;
2232 tfid.Cell = avc->f.fid.Cell;
2233 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2234 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2235 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2237 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2243 if (tvc->mvstat != 1) {
2248 ObtainWriteLock(&tvc->lock, 226);
2249 code = afs_HandleLink(tvc, areq);
2251 if (tvc->linkData) {
2252 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2255 /* we have the data */
2256 if (afs_pd_putString(aout, tvc->linkData) != 0)
2262 ReleaseWriteLock(&tvc->lock);
2265 if (sysState.allocked)
2266 osi_FreeLargeSpace(bufp);
2271 * A helper function to get the n'th cell which a particular user has tokens
2272 * for. This is racy. If new tokens are added whilst we're iterating, then
2273 * we may return some cells twice. If tokens expire mid run, then we'll
2274 * miss some cells from our output. So, could be better, but that would
2275 * require an interface change.
2278 static struct unixuser *
2279 getNthCell(afs_int32 uid, afs_int32 iterator) {
2281 struct unixuser *tu = NULL;
2284 ObtainReadLock(&afs_xuser);
2285 for (tu = afs_users[i]; tu; tu = tu->next) {
2286 if (tu->uid == uid && (tu->states & UHasTokens)) {
2287 if (iterator-- == 0)
2288 break; /* are we done yet? */
2294 ReleaseReadLock(&afs_xuser);
2296 afs_LockUser(tu, READ_LOCK, 0);
2303 * VIOCGETTOK (8) - Get authentication tokens
2307 * \param[in] ain cellid to return tokens for
2308 * \param[out] aout token
2311 * Error if the afs daemon hasn't started yet
2313 * Error if the input parameter is out of the bounds of the available
2316 * Error if there aren't tokens for this cell
2319 * If the input paramater exists, get the token that corresponds to
2320 * the parameter value, if there is no token at this value, get the
2321 * token for the first cell
2323 * \notes "it's a weird interface (from comments in the code)"
2326 DECL_PIOCTL(PGetTokens)
2329 struct unixuser *tu = NULL;
2330 union tokenUnion *token;
2331 afs_int32 iterator = 0;
2336 AFS_STATCNT(PGetTokens);
2337 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2338 return EIO; /* Inappropriate ioctl for device */
2340 /* weird interface. If input parameter is present, it is an integer and
2341 * we're supposed to return the parm'th tokens for this unix uid.
2342 * If not present, we just return tokens for cell 1.
2343 * If counter out of bounds, return EDOM.
2344 * If no tokens for the particular cell, return ENOTCONN.
2345 * Also, if this mysterious parm is present, we return, along with the
2346 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2347 * at the end, in that order.
2349 newStyle = (afs_pd_remaining(ain) > 0);
2351 if (afs_pd_getInt(ain, &iterator) != 0)
2355 tu = getNthCell(areq->uid, iterator);
2357 cellNum = afs_GetPrimaryCellNum();
2359 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2364 if (!(tu->states & UHasTokens)
2365 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2366 tu->states |= (UTokensBad | UNeedsReset);
2367 afs_NotifyUser(tu, UTokensDropped);
2368 afs_PutUser(tu, READ_LOCK);
2371 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2373 /* If they don't have an RXKAD token, but do have other tokens,
2374 * then sadly there's nothing this interface can do to help them. */
2378 /* for compat, we try to return 56 byte tix if they fit */
2379 iterator = token->rxkad.ticketLen;
2381 iterator = 56; /* # of bytes we're returning */
2383 if (afs_pd_putInt(aout, iterator) != 0)
2385 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2387 if (token->rxkad.ticketLen < 56) {
2388 /* Tokens are always 56 bytes or larger */
2389 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2394 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2396 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2397 sizeof(struct ClearToken)) != 0)
2401 /* put out primary id and cell name, too */
2402 iterator = (tu->states & UPrimary ? 1 : 0);
2403 if (afs_pd_putInt(aout, iterator) != 0)
2405 tcell = afs_GetCell(tu->cell, READ_LOCK);
2407 if (afs_pd_putString(aout, tcell->cellName) != 0)
2409 afs_PutCell(tcell, READ_LOCK);
2411 if (afs_pd_putString(aout, "") != 0)
2414 /* Got here, all is good */
2417 afs_PutUser(tu, READ_LOCK);
2422 * VIOCUNLOG (9) - Invalidate tokens
2426 * \param[in] ain not in use
2427 * \param[out] aout not in use
2429 * \retval EIO Error if the afs daemon hasn't been started yet
2431 * \post remove tokens from a user, specified by the user id
2433 * \notes sets the token's time to 0, which then causes it to be removed
2434 * \notes Unlog is the same as un-pag in OpenAFS
2439 struct unixuser *tu;
2441 AFS_STATCNT(PUnlog);
2442 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2443 return EIO; /* Inappropriate ioctl for device */
2445 i = UHash(areq->uid);
2446 ObtainWriteLock(&afs_xuser, 227);
2447 for (tu = afs_users[i]; tu; tu = tu->next) {
2448 if (tu->uid == areq->uid) {
2450 ReleaseWriteLock(&afs_xuser);
2452 afs_LockUser(tu, WRITE_LOCK, 366);
2454 tu->states &= ~UHasTokens;
2455 afs_FreeTokens(&tu->tokens);
2456 afs_NotifyUser(tu, UTokensDropped);
2457 /* We have to drop the lock over the call to afs_ResetUserConns,
2458 * since it obtains the afs_xvcache lock. We could also keep
2459 * the lock, and modify ResetUserConns to take parm saying we
2460 * obtained the lock already, but that is overkill. By keeping
2461 * the "tu" pointer held over the released lock, we guarantee
2462 * that we won't lose our place, and that we'll pass over
2463 * every user conn that existed when we began this call.
2465 afs_ResetUserConns(tu);
2466 afs_PutUser(tu, WRITE_LOCK);
2467 ObtainWriteLock(&afs_xuser, 228);
2469 /* set the expire times to 0, causes
2470 * afs_GCUserData to remove this entry
2473 #endif /* UKERNEL */
2476 ReleaseWriteLock(&afs_xuser);
2481 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2485 * \param[in] ain host address to be set
2486 * \param[out] aout old host address
2489 * depending on whether or not a variable is set, either get the host
2490 * for the cache manager monitor, or set the old address and give it
2493 * \notes Errors turn off mariner
2495 DECL_PIOCTL(PMariner)
2497 afs_int32 newHostAddr;
2498 afs_int32 oldHostAddr;
2500 AFS_STATCNT(PMariner);
2502 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2505 oldHostAddr = 0xffffffff; /* disabled */
2507 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2510 if (newHostAddr == 0xffffffff) {
2511 /* disable mariner operations */
2513 } else if (newHostAddr) {
2515 afs_marinerHost = newHostAddr;
2518 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2525 * VIOCCKSERV (10) - Check that servers are up
2529 * \param[in] ain name of the cell
2530 * \param[out] aout current down server list
2532 * \retval EIO Error if the afs daemon hasn't started yet
2533 * \retval EACCES Error if the user doesn't have super-user credentials
2534 * \retval ENOENT Error if we are unable to obtain the cell
2537 * Either a fast check (where it doesn't contact servers) or a
2538 * local check (checks local cell only)
2540 DECL_PIOCTL(PCheckServers)
2545 char *cellName = NULL;
2547 struct chservinfo *pcheck;
2549 AFS_STATCNT(PCheckServers);
2551 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2552 return EIO; /* Inappropriate ioctl for device */
2554 /* This is tricky, because we need to peak at the datastream to see
2555 * what we're getting. For now, let's cheat. */
2557 /* ain contains either an int32 or a string */
2558 if (ain->remaining == 0)
2561 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2562 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2566 if (pcheck->tinterval >= 0) {
2567 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2569 if (pcheck->tinterval > 0) {
2570 if (!afs_osi_suser(*acred))
2572 afs_probe_interval = pcheck->tinterval;
2576 temp = pcheck->tflags;
2578 cellName = pcheck->tbuffer;
2579 } else { /* For pre afs3.3 versions */
2580 if (afs_pd_getInt(ain, &temp) != 0)
2582 if (afs_pd_remaining(ain) > 0) {
2583 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2589 * 1: fast check, don't contact servers.
2590 * 2: local cell only.
2593 /* have cell name, too */
2594 cellp = afs_GetCellByName(cellName, READ_LOCK);
2599 if (!cellp && (temp & 2)) {
2600 /* use local cell */
2601 cellp = afs_GetPrimaryCell(READ_LOCK);
2603 if (!(temp & 1)) { /* if not fast, call server checker routine */
2604 afs_CheckServers(1, cellp); /* check down servers */
2605 afs_CheckServers(0, cellp); /* check up servers */
2607 /* now return the current down server list */
2608 ObtainReadLock(&afs_xserver);
2609 for (i = 0; i < NSERVERS; i++) {
2610 for (ts = afs_servers[i]; ts; ts = ts->next) {
2611 if (cellp && ts->cell != cellp)
2612 continue; /* cell spec'd and wrong */
2613 if ((ts->flags & SRVR_ISDOWN)
2614 && ts->addr->sa_portal != ts->cell->vlport) {
2615 afs_pd_putInt(aout, ts->addr->sa_ip);
2619 ReleaseReadLock(&afs_xserver);
2621 afs_PutCell(cellp, READ_LOCK);
2626 * VIOCCKBACK (11) - Check backup volume mappings
2630 * \param[in] ain not in use
2631 * \param[out] aout not in use
2633 * \retval EIO Error if the afs daemon hasn't started yet
2636 * Check the root volume, and then check the names if the volume
2637 * check variable is set to force, has expired, is busy, or if
2638 * the mount points variable is set
2640 DECL_PIOCTL(PCheckVolNames)
2642 AFS_STATCNT(PCheckVolNames);
2643 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2644 return EIO; /* Inappropriate ioctl for device */
2646 afs_CheckRootVolume();
2647 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2648 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2653 * VIOCCKCONN (12) - Check connections for a user
2657 * \param[in] ain not in use
2658 * \param[out] aout not in use
2661 * Error if no user is specififed, the user has no tokens set,
2662 * or if the user's tokens are bad
2665 * check to see if a user has the correct authentication.
2666 * If so, allow access.
2668 * \notes Check the connections to all the servers specified
2670 DECL_PIOCTL(PCheckAuth)
2674 struct sa_conn_vector *tcv;
2675 struct unixuser *tu;
2678 AFS_STATCNT(PCheckAuth);
2679 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2680 return EIO; /* Inappropriate ioctl for device */
2683 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2687 /* we have a user */
2688 ObtainReadLock(&afs_xsrvAddr);
2689 ObtainReadLock(&afs_xconn);
2691 /* any tokens set? */
2692 if ((tu->states & UHasTokens) == 0)
2694 /* all connections in cell 1 working? */
2695 for (i = 0; i < NSERVERS; i++) {
2696 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2697 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2698 if (tcv->user == tu && (tu->states & UTokensBad))
2703 ReleaseReadLock(&afs_xsrvAddr);
2704 ReleaseReadLock(&afs_xconn);
2705 afs_PutUser(tu, READ_LOCK);
2707 if (afs_pd_putInt(aout, retValue) != 0)
2713 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2718 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2724 AFS_STATCNT(Prefetch);
2727 tp = osi_AllocLargeSpace(1024);
2728 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2730 osi_FreeLargeSpace(tp);
2733 if (afs_BBusy()) { /* do this as late as possible */
2734 osi_FreeLargeSpace(tp);
2735 return EWOULDBLOCK; /* pretty close */
2737 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2738 (afs_size_t) 0, tp, (void *)0, (void *)0);
2743 * VIOCWHEREIS (14) - Find out where a volume is located
2747 * \param[in] ain not in use
2748 * \param[out] aout volume location
2750 * \retval EINVAL Error if some of the default arguments don't exist
2751 * \retval ENODEV Error if there is no such volume
2753 * \post fine a volume, based on a volume file id
2755 * \notes check each of the servers specified
2757 DECL_PIOCTL(PFindVolume)
2764 AFS_STATCNT(PFindVolume);
2767 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2771 for (i = 0; i < AFS_MAXHOSTS; i++) {
2772 ts = tvp->serverHost[i];
2775 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2780 if (i < AFS_MAXHOSTS) {
2781 /* still room for terminating NULL, add it on */
2782 if (afs_pd_putInt(aout, 0) != 0) {
2788 afs_PutVolume(tvp, READ_LOCK);
2793 * VIOCACCESS (20) - Access using PRS_FS bits
2797 * \param[in] ain PRS_FS bits
2798 * \param[out] aout not in use
2800 * \retval EINVAL Error if some of the initial arguments aren't set
2801 * \retval EACCES Error if access is denied
2803 * \post check to make sure access is allowed
2805 DECL_PIOCTL(PViceAccess)
2810 AFS_STATCNT(PViceAccess);
2814 code = afs_VerifyVCache(avc, areq);
2818 if (afs_pd_getInt(ain, &temp) != 0)
2821 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2829 * VIOC_GETPAG (13) - Get PAG value
2833 * \param[in] ain not in use
2834 * \param[out] aout PAG value or NOPAG
2836 * \post get PAG value for the caller's cred
2838 DECL_PIOCTL(PGetPAG)
2842 pag = PagInCred(*acred);
2844 return afs_pd_putInt(aout, pag);
2847 DECL_PIOCTL(PPrecache)
2851 /*AFS_STATCNT(PPrecache);*/
2852 if (!afs_osi_suser(*acred))
2855 if (afs_pd_getInt(ain, &newValue) != 0)
2858 afs_preCache = newValue*1024;
2863 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2867 * \param[in] ain the size the venus cache should be set to
2868 * \param[out] aout not in use
2870 * \retval EACCES Error if the user doesn't have super-user credentials
2871 * \retval EROFS Error if the cache is set to be in memory
2874 * Set the cache size based on user input. If no size is given,
2875 * set it to the default OpenAFS cache size.
2878 * recompute the general cache parameters for every single block allocated
2880 DECL_PIOCTL(PSetCacheSize)
2885 AFS_STATCNT(PSetCacheSize);
2887 if (!afs_osi_suser(*acred))
2889 /* too many things are setup initially in mem cache version */
2890 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2892 if (afs_pd_getInt(ain, &newValue) != 0)
2895 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2897 if (newValue < afs_min_cache)
2898 afs_cacheBlocks = afs_min_cache;
2900 afs_cacheBlocks = newValue;
2902 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2903 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2904 afs_MaybeWakeupTruncateDaemon();
2905 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2906 afs_osi_Wait(1000, 0, 0);
2907 afs_MaybeWakeupTruncateDaemon();
2912 #define MAXGCSTATS 16
2914 * VIOCGETCACHEPARMS (40) - Get cache stats
2918 * \param[in] ain afs index flags
2919 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2921 * \post Get the cache blocks, and how many of the cache blocks there are
2923 DECL_PIOCTL(PGetCacheSize)
2925 afs_int32 results[MAXGCSTATS];
2927 struct dcache * tdc;
2930 AFS_STATCNT(PGetCacheSize);
2932 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2933 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2934 } else if (afs_pd_remaining(ain) == 0) {
2940 memset(results, 0, sizeof(results));
2941 results[0] = afs_cacheBlocks;
2942 results[1] = afs_blocksUsed;
2943 results[2] = afs_cacheFiles;
2946 for (i = 0; i < afs_cacheFiles; i++) {
2947 if (afs_indexFlags[i] & IFFree) results[3]++;
2949 } else if (2 == flags){
2950 for (i = 0; i < afs_cacheFiles; i++) {
2951 if (afs_indexFlags[i] & IFFree) results[3]++;
2952 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2953 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2954 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2955 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2956 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2958 tdc = afs_indexTable[i];
2961 size = tdc->validPos;
2962 if ( 0 < size && size < (1<<12) ) results[10]++;
2963 else if (size < (1<<14) ) results[11]++;
2964 else if (size < (1<<16) ) results[12]++;
2965 else if (size < (1<<18) ) results[13]++;
2966 else if (size < (1<<20) ) results[14]++;
2967 else if (size >= (1<<20) ) results[15]++;
2971 return afs_pd_putBytes(aout, results, sizeof(results));
2975 * VIOCFLUSHCB (25) - Flush callback only
2979 * \param[in] ain not in use
2980 * \param[out] aout not in use
2982 * \retval EINVAL Error if some of the standard args aren't set
2983 * \retval 0 0 returned if the volume is set to read-only
2986 * Flushes callbacks, by setting the length of callbacks to one,
2987 * setting the next callback to be sent to the CB_DROPPED value,
2988 * and then dequeues everything else.
2990 DECL_PIOCTL(PRemoveCallBack)
2992 struct afs_conn *tc;
2994 struct AFSCallBack CallBacks_Array[1];
2995 struct AFSCBFids theFids;
2996 struct AFSCBs theCBs;
2997 struct rx_connection *rxconn;
3000 AFS_STATCNT(PRemoveCallBack);
3003 if (avc->f.states & CRO)
3004 return 0; /* read-only-ness can't change */
3005 ObtainWriteLock(&avc->lock, 229);
3006 theFids.AFSCBFids_len = 1;
3007 theCBs.AFSCBs_len = 1;
3008 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
3009 theCBs.AFSCBs_val = CallBacks_Array;
3010 CallBacks_Array[0].CallBackType = CB_DROPPED;
3011 if (avc->callback) {
3013 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3015 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
3017 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3021 /* don't set code on failure since we wouldn't use it */
3022 } while (afs_Analyze
3023 (tc, rxconn, code, &avc->f.fid, areq,
3024 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3026 ObtainWriteLock(&afs_xcbhash, 457);
3027 afs_DequeueCallback(avc);
3029 avc->f.states &= ~(CStatd | CUnique);
3030 ReleaseWriteLock(&afs_xcbhash);
3031 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3032 osi_dnlc_purgedp(avc);
3034 ReleaseWriteLock(&avc->lock);
3039 * VIOCNEWCELL (26) - Configure new cell
3044 * the name of the cell, the hosts that will be a part of the cell,
3045 * whether or not it's linked with another cell, the other cell it's
3046 * linked with, the file server port, and the volume server port
3050 * \retval EIO Error if the afs daemon hasn't started yet
3051 * \retval EACCES Error if the user doesn't have super-user cedentials
3052 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3054 * \post creates a new cell
3056 DECL_PIOCTL(PNewCell)
3058 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3059 char *newcell = NULL;
3060 char *linkedcell = NULL;
3062 afs_int32 linkedstate = 0;
3063 afs_int32 fsport = 0, vlport = 0;
3066 AFS_STATCNT(PNewCell);
3067 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3068 return EIO; /* Inappropriate ioctl for device */
3070 if (!afs_osi_suser(*acred))
3073 if (afs_pd_getInt(ain, &magic) != 0)
3075 if (magic != 0x12345678)
3078 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3079 * server addresses while the 3.5 fs newcell command passes
3080 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3083 * This whole logic is bogus, because it relies on the newer command
3084 * sending its 12th address as 0.
3086 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3089 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3090 if (newcell[0] != '\0') {
3093 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3096 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3097 if (afs_pd_getBytes(ain, &cellHosts,
3098 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3100 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3103 if (afs_pd_getInt(ain, &fsport) != 0)
3106 fsport = 0; /* Privileged ports not allowed */
3108 if (afs_pd_getInt(ain, &vlport) != 0)
3111 vlport = 0; /* Privileged ports not allowed */
3113 if (afs_pd_getInt(ain, &ls) != 0)
3116 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3120 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3122 linkedstate |= CLinkedCell;
3125 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3127 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3132 DECL_PIOCTL(PNewAlias)
3134 /* create a new cell alias */
3135 char *realName, *aliasName;
3137 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3138 return EIO; /* Inappropriate ioctl for device */
3140 if (!afs_osi_suser(*acred))
3143 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3145 if (afs_pd_getStringPtr(ain, &realName) != 0)
3148 return afs_NewCellAlias(aliasName, realName);
3152 * VIOCGETCELL (27) - Get cell info
3156 * \param[in] ain The cell index of a specific cell
3157 * \param[out] aout list of servers in the cell
3159 * \retval EIO Error if the afs daemon hasn't started yet
3160 * \retval EDOM Error if there is no cell asked about
3162 * \post Lists the cell's server names and and addresses
3164 DECL_PIOCTL(PListCells)
3166 afs_int32 whichCell;
3167 struct cell *tcell = 0;
3171 AFS_STATCNT(PListCells);
3172 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3173 return EIO; /* Inappropriate ioctl for device */
3175 if (afs_pd_getInt(ain, &whichCell) != 0)
3178 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3184 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3185 if (tcell->cellHosts[i] == 0)
3187 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3190 for (;i < AFS_MAXCELLHOSTS; i++) {
3191 if (afs_pd_putInt(aout, 0) != 0)
3194 if (afs_pd_putString(aout, tcell->cellName) != 0)
3199 afs_PutCell(tcell, READ_LOCK);
3203 DECL_PIOCTL(PListAliases)
3205 afs_int32 whichAlias;
3206 struct cell_alias *tcalias = 0;
3209 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3210 return EIO; /* Inappropriate ioctl for device */
3212 if (afs_pd_getInt(ain, &whichAlias) != 0)
3215 tcalias = afs_GetCellAlias(whichAlias);
3216 if (tcalias == NULL)
3220 if (afs_pd_putString(aout, tcalias->alias) != 0)
3222 if (afs_pd_putString(aout, tcalias->cell) != 0)
3227 afs_PutCellAlias(tcalias);
3232 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3236 * \param[in] ain the name of the file in this dir to remove
3237 * \param[out] aout not in use
3240 * Error if some of the standard args aren't set
3242 * Error if the argument to remove is not a directory
3244 * Error if there is no cache to remove the mount point from or
3245 * if a vcache doesn't exist
3248 * Ensure that everything is OK before deleting the mountpoint.
3249 * If not, don't delete. Delete a mount point based on a file id.
3251 DECL_PIOCTL(PRemoveMount)
3256 struct sysname_info sysState;
3257 afs_size_t offset, len;
3258 struct afs_conn *tc;
3261 struct AFSFetchStatus OutDirStatus;
3262 struct VenusFid tfid;
3263 struct AFSVolSync tsync;
3264 struct rx_connection *rxconn;
3267 /* "ain" is the name of the file in this dir to remove */
3269 AFS_STATCNT(PRemoveMount);
3272 if (afs_pd_getStringPtr(ain, &name) != 0)
3275 code = afs_VerifyVCache(avc, areq);
3278 if (vType(avc) != VDIR)
3281 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3284 Check_AtSys(avc, name, &sysState, areq);
3285 ObtainReadLock(&tdc->lock);
3287 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3288 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3289 ReleaseReadLock(&tdc->lock);
3290 bufp = sysState.name;
3295 tfid.Cell = avc->f.fid.Cell;
3296 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3297 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3298 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3300 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3307 if (tvc->mvstat != 1) {
3313 ObtainWriteLock(&tvc->lock, 230);
3314 code = afs_HandleLink(tvc, areq);
3316 if (tvc->linkData) {
3317 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3322 ReleaseWriteLock(&tvc->lock);
3323 osi_dnlc_purgedp(tvc);
3329 ObtainWriteLock(&avc->lock, 231);
3330 osi_dnlc_remove(avc, bufp, tvc);
3332 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3334 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3337 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3338 &OutDirStatus, &tsync);
3343 } while (afs_Analyze
3344 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3345 SHARED_LOCK, NULL));
3350 ReleaseWriteLock(&avc->lock);
3354 /* we have the thing in the cache */
3355 ObtainWriteLock(&tdc->lock, 661);
3356 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3357 /* we can do it locally */
3358 code = afs_dir_Delete(tdc, bufp);
3360 ZapDCE(tdc); /* surprise error -- invalid value */
3364 ReleaseWriteLock(&tdc->lock);
3365 afs_PutDCache(tdc); /* drop ref count */
3367 avc->f.states &= ~CUnique; /* For the dfs xlator */
3368 ReleaseWriteLock(&avc->lock);
3371 if (sysState.allocked)
3372 osi_FreeLargeSpace(bufp);
3377 * VIOC_GETCELLSTATUS (35) - Get cell status info
3381 * \param[in] ain The cell you want status information on
3382 * \param[out] aout cell state (as a struct)
3384 * \retval EIO Error if the afs daemon hasn't started yet
3385 * \retval ENOENT Error if the cell doesn't exist
3387 * \post Returns the state of the cell as defined in a struct cell
3389 DECL_PIOCTL(PGetCellStatus)
3395 AFS_STATCNT(PGetCellStatus);
3396 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3397 return EIO; /* Inappropriate ioctl for device */
3399 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3402 tcell = afs_GetCellByName(cellName, READ_LOCK);
3405 temp = tcell->states;
3406 afs_PutCell(tcell, READ_LOCK);
3408 return afs_pd_putInt(aout, temp);
3412 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3417 * The cell you want to set information about, and the values you
3422 * \retval EIO Error if the afs daemon hasn't started yet
3423 * \retval EACCES Error if the user doesn't have super-user credentials
3426 * Set the state of the cell in a defined struct cell, based on
3427 * whether or not SetUID is allowed
3429 DECL_PIOCTL(PSetCellStatus)
3433 afs_int32 flags0, flags1;
3435 if (!afs_osi_suser(*acred))
3437 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3438 return EIO; /* Inappropriate ioctl for device */
3440 if (afs_pd_getInt(ain, &flags0) != 0)
3442 if (afs_pd_getInt(ain, &flags1) != 0)
3444 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3447 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3450 if (flags0 & CNoSUID)
3451 tcell->states |= CNoSUID;
3453 tcell->states &= ~CNoSUID;
3454 afs_PutCell(tcell, WRITE_LOCK);
3459 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3463 * \param[in] ain not in use (args in avc)
3464 * \param[out] aout not in use
3466 * \retval EINVAL Error if some of the standard args aren't set
3467 * \retval EIO Error if the afs daemon hasn't started yet
3470 * Flush all cached contents of a volume. Exactly what stays and what
3471 * goes depends on the platform.
3474 * Does not flush a file that a user has open and is using, because
3475 * it will be re-created on next write. Also purges the dnlc,
3476 * because things are screwed up.
3478 DECL_PIOCTL(PFlushVolumeData)
3484 afs_int32 cell, volume;
3485 struct afs_q *tq, *uq;
3486 #ifdef AFS_DARWIN80_ENV
3490 AFS_STATCNT(PFlushVolumeData);
3493 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3494 return EIO; /* Inappropriate ioctl for device */
3496 volume = avc->f.fid.Fid.Volume; /* who to zap */
3497 cell = avc->f.fid.Cell;
3500 * Clear stat'd flag from all vnodes from this volume; this will
3501 * invalidate all the vcaches associated with the volume.
3504 ObtainReadLock(&afs_xvcache);
3505 i = VCHashV(&avc->f.fid);
3506 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3509 if (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell) {
3510 if (tvc->f.states & CVInit) {
3511 ReleaseReadLock(&afs_xvcache);
3512 afs_osi_Sleep(&tvc->f.states);
3515 #ifdef AFS_DARWIN80_ENV
3516 if (tvc->f.states & CDeadVnode) {
3517 ReleaseReadLock(&afs_xvcache);
3518 afs_osi_Sleep(&tvc->f.states);
3524 if (vnode_ref(vp)) {
3533 ReleaseReadLock(&afs_xvcache);
3534 #ifdef AFS_BOZONLOCK_ENV
3535 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3537 ObtainWriteLock(&tvc->lock, 232);
3539 ObtainWriteLock(&afs_xcbhash, 458);
3540 afs_DequeueCallback(tvc);
3541 tvc->f.states &= ~(CStatd | CDirty);
3542 ReleaseWriteLock(&afs_xcbhash);
3543 if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
3544 osi_dnlc_purgedp(tvc);
3545 afs_TryToSmush(tvc, *acred, 1);
3546 ReleaseWriteLock(&tvc->lock);
3547 #ifdef AFS_BOZONLOCK_ENV
3548 afs_BozonUnlock(&tvc->pvnLock, tvc);
3550 #ifdef AFS_DARWIN80_ENV
3551 vnode_put(AFSTOV(tvc));
3553 ObtainReadLock(&afs_xvcache);
3555 /* our tvc ptr is still good until now */
3559 ReleaseReadLock(&afs_xvcache);
3562 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3563 for (i = 0; i < afs_cacheFiles; i++) {
3564 if (!(afs_indexFlags[i] & IFEverUsed))
3565 continue; /* never had any data */
3566 tdc = afs_GetDSlot(i, NULL);
3567 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3568 ReleaseReadLock(&tdc->tlock);
3569 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
3570 if (!(afs_indexFlags[i] & IFDataMod)) {
3571 /* if the file is modified, but has a ref cnt of only 1,
3572 * then someone probably has the file open and is writing
3573 * into it. Better to skip flushing such a file, it will be
3574 * brought back immediately on the next write anyway.
3576 * If we *must* flush, then this code has to be rearranged
3577 * to call afs_storeAllSegments() first */
3578 afs_FlushDCache(tdc);
3582 ReleaseReadLock(&tdc->tlock);
3584 afs_PutDCache(tdc); /* bumped by getdslot */
3586 ReleaseWriteLock(&afs_xdcache);
3588 ObtainReadLock(&afs_xvolume);
3589 for (i = 0; i < NVOLS; i++) {
3590 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3591 if (tv->volume == volume) {
3592 afs_ResetVolumeInfo(tv);
3597 ReleaseReadLock(&afs_xvolume);
3599 /* probably, a user is doing this, probably, because things are screwed up.
3600 * maybe it's the dnlc's fault? */
3607 * VIOCGETVCXSTATUS (41) - gets vnode x status
3612 * not in use (avc used)
3614 * vcxstat: the file id, the data version, any lock, the parent vnode,
3615 * the parent unique id, the trunc position, the callback, cbExpires,
3616 * what access is being made, what files are open,
3617 * any users executing/writing, the flock count, the states,
3621 * Error if some of the initial default arguments aren't set
3623 * Error if access to check the mode bits is denied
3626 * gets stats for the vnode, a struct listed in vcxstat
3628 DECL_PIOCTL(PGetVnodeXStatus)
3631 struct vcxstat stat;
3634 /* AFS_STATCNT(PGetVnodeXStatus); */
3637 code = afs_VerifyVCache(avc, areq);
3640 if (vType(avc) == VDIR)
3641 mode = PRSFS_LOOKUP;
3644 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3647 memset(&stat, 0, sizeof(struct vcxstat));
3648 stat.fid = avc->f.fid;
3649 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3650 stat.lock = avc->lock;
3651 stat.parentVnode = avc->f.parent.vnode;
3652 stat.parentUnique = avc->f.parent.unique;
3653 hset(stat.flushDV, avc->flushDV);
3654 hset(stat.mapDV, avc->mapDV);
3655 stat.truncPos = avc->f.truncPos;
3656 { /* just grab the first two - won't break anything... */
3657 struct axscache *ac;
3659 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3660 stat.randomUid[i] = ac->uid;
3661 stat.randomAccess[i] = ac->axess;
3664 stat.callback = afs_data_pointer_to_int32(avc->callback);
3665 stat.cbExpires = avc->cbExpires;
3666 stat.anyAccess = avc->f.anyAccess;
3667 stat.opens = avc->opens;
3668 stat.execsOrWriters = avc->execsOrWriters;
3669 stat.flockCount = avc->flockCount;
3670 stat.mvstat = avc->mvstat;
3671 stat.states = avc->f.states;
3672 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3676 DECL_PIOCTL(PGetVnodeXStatus2)
3679 struct vcxstat2 stat;
3684 code = afs_VerifyVCache(avc, areq);
3687 if (vType(avc) == VDIR)
3688 mode = PRSFS_LOOKUP;
3691 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3694 memset(&stat, 0, sizeof(struct vcxstat2));
3696 stat.cbExpires = avc->cbExpires;
3697 stat.anyAccess = avc->f.anyAccess;
3698 stat.mvstat = avc->mvstat;
3699 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3701 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3706 * VIOC_AFS_SYSNAME (38) - Change @sys value
3710 * \param[in] ain new value for @sys
3711 * \param[out] aout count, entry, list (debug values?)
3714 * Error if afsd isn't running, the new sysname is too large,
3715 * the new sysname causes issues (starts with a . or ..),
3716 * there is no PAG set in the credentials, or the user of a PAG
3719 * Error if the user doesn't have super-user credentials
3722 * Set the value of @sys if these things work: if the input isn't
3723 * too long or if input doesn't start with . or ..
3726 * We require root for local sysname changes, but not for remote
3727 * (since we don't really believe remote uids anyway)
3728 * outname[] shouldn't really be needed- this is left as an
3729 * exercise for the reader.
3731 DECL_PIOCTL(PSetSysName)
3733 char *inname = NULL;
3734 char outname[MAXSYSNAME];
3735 afs_int32 setsysname;
3737 struct afs_exporter *exporter;
3738 struct unixuser *au;
3739 afs_int32 pag, error;
3740 int t, count, num = 0, allpags = 0;
3742 struct afs_pdata validate;
3744 AFS_STATCNT(PSetSysName);
3745 if (!afs_globalVFS) {
3746 /* Afsd is NOT running; disable it */
3747 #if defined(KERNEL_HAVE_UERROR)
3748 return (setuerror(EINVAL), EINVAL);
3753 if (afs_pd_getInt(ain, &setsysname) != 0)
3755 if (setsysname & 0x8000) {
3757 setsysname &= ~0x8000;
3762 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3765 for (count = 0; count < setsysname; count++) {
3766 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3769 if (t >= MAXSYSNAME || t <= 0)
3771 /* check for names that can shoot us in the foot */
3772 if (inname[0] == '.' && (inname[1] == 0
3773 || (inname[1] == '.' && inname[2] == 0)))
3776 /* args ok, so go back to the beginning of that section */
3778 if (afs_pd_getStringPtr(ain, &inname) != 0)
3782 if (afs_cr_gid(*acred) == RMTUSER_REQ ||
3783 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV) { /* Handles all exporters */
3784 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3787 pag = PagInCred(*acred);
3789 return EINVAL; /* Better than panicing */
3791 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3792 return EINVAL; /* Better than panicing */
3794 if (!(exporter = au->exporter)) {
3795 afs_PutUser(au, READ_LOCK);
3796 return EINVAL; /* Better than panicing */
3798 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3801 if (error == ENODEV)
3802 foundname = 0; /* sysname not set yet! */
3804 afs_PutUser(au, READ_LOCK);
3809 strcpy(outname, sysnamelist[0]);
3811 afs_PutUser(au, READ_LOCK);
3815 /* Not xlating, so local case */
3817 osi_Panic("PSetSysName: !afs_sysname\n");
3818 if (!setsysname) { /* user just wants the info */
3819 strcpy(outname, afs_sysname);
3820 foundname = afs_sysnamecount;
3821 sysnamelist = afs_sysnamelist;
3822 } else { /* Local guy; only root can change sysname */
3823 if (!afs_osi_suser(*acred))
3826 /* allpags makes no sense for local use */
3830 /* clear @sys entries from the dnlc, once afs_lookup can
3831 * do lookups of @sys entries and thinks it can trust them */
3832 /* privs ok, store the entry, ... */
3834 if (strlen(inname) >= MAXSYSNAME-1)
3836 strcpy(afs_sysname, inname);
3838 if (setsysname > 1) { /* ... or list */
3839 for (count = 1; count < setsysname; ++count) {
3840 if (!afs_sysnamelist[count])
3842 ("PSetSysName: no afs_sysnamelist entry to write\n");
3843 if (afs_pd_getString(ain, afs_sysnamelist[count],
3848 afs_sysnamecount = setsysname;
3853 if (afs_pd_putInt(aout, foundname) != 0)
3856 if (afs_pd_putString(aout, outname) != 0)
3858 for (count = 1; count < foundname; ++count) { /* ... or list. */
3859 if (!sysnamelist[count])
3861 ("PSetSysName: no afs_sysnamelist entry to read\n");
3862 t = strlen(sysnamelist[count]);
3863 if (t >= MAXSYSNAME)
3864 osi_Panic("PSetSysName: sysname entry garbled\n");
3865 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3873 /* sequential search through the list of touched cells is not a good
3874 * long-term solution here. For small n, though, it should be just
3875 * fine. Should consider special-casing the local cell for large n.
3876 * Likewise for PSetSPrefs.
3878 * s - number of ids in array l[] -- NOT index of last id
3879 * l - array of cell ids which have volumes that need to be sorted
3880 * vlonly - sort vl servers or file servers?
3883 ReSortCells_cb(struct cell *cell, void *arg)
3885 afs_int32 *p = (afs_int32 *) arg;
3886 afs_int32 *l = p + 1;
3889 for (i = 0; i < s; i++) {
3890 if (l[i] == cell->cellNum) {
3891 ObtainWriteLock(&cell->lock, 690);
3892 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3893 ReleaseWriteLock(&cell->lock);
3901 ReSortCells(int s, afs_int32 * l, int vlonly)
3909 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3910 osi_Assert(p != NULL);
3912 memcpy(p + 1, l, s * sizeof(afs_int32));
3913 afs_TraverseCells(&ReSortCells_cb, p);
3914 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3918 ObtainReadLock(&afs_xvolume);
3919 for (i = 0; i < NVOLS; i++) {
3920 for (j = afs_volumes[i]; j; j = j->next) {
3921 for (k = 0; k < s; k++)
3922 if (j->cell == l[k]) {
3923 ObtainWriteLock(&j->lock, 233);
3924 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3925 ReleaseWriteLock(&j->lock);
3930 ReleaseReadLock(&afs_xvolume);
3934 static int debugsetsp = 0;
3936 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3939 int i, j, k, matches, touchedSize;
3940 struct server *srvr = NULL;
3941 afs_int32 touched[34];
3945 for (k = 0; k < num; sp++, k++) {
3947 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3950 ObtainReadLock(&afs_xserver);
3952 i = SHash(sp->host.s_addr);
3953 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3954 if (sa->sa_ip == sp->host.s_addr) {
3956 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3957 || (sa->sa_portal == AFS_FSPORT);
3958 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3965 if (sa && matches) { /* found one! */
3967 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3969 sa->sa_iprank = sp->rank + afs_randomMod15();
3970 afs_SortOneServer(sa->server);
3973 /* if we don't know yet what cell it's in, this is moot */
3974 for (j = touchedSize - 1;
3975 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
3976 /* is it in our list of touched cells ? */ ;
3977 if (j < 0) { /* no, it's not */
3978 touched[touchedSize++] = srvr->cell->cellNum;
3979 if (touchedSize >= 32) { /* watch for ovrflow */
3980 ReleaseReadLock(&afs_xserver);
3981 ReSortCells(touchedSize, touched, vlonly);
3983 ObtainReadLock(&afs_xserver);
3989 ReleaseReadLock(&afs_xserver);
3990 /* if we didn't find one, start to create one. */
3991 /* Note that it doesn't have a cell yet... */
3993 afs_uint32 temp = sp->host.s_addr;
3995 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
3996 WRITE_LOCK, (afsUUID *) 0, 0);
3997 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
3998 afs_PutServer(srvr, WRITE_LOCK);
4000 } /* for all cited preferences */
4002 ReSortCells(touchedSize, touched, vlonly);
4007 * VIOC_SETPREFS (46) - Set server ranks
4009 * \param[in] ain the sprefs value you want the sprefs to be set to
4010 * \param[out] aout not in use
4013 * Error if the afs daemon hasn't started yet
4015 * Error if the user doesn't have super-user credentials
4017 * Error if the struct setsprefs is too large or if it multiplied
4018 * by the number of servers is too large
4020 * \post set the sprefs using the afs_setsprefs() function
4022 DECL_PIOCTL(PSetSPrefs)
4024 struct setspref *ssp;
4028 AFS_STATCNT(PSetSPrefs);
4030 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4031 return EIO; /* Inappropriate ioctl for device */
4033 if (!afs_osi_suser(*acred))
4036 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4037 * of arrays. But, i'm not quite brave enough to change it yet. */
4039 ainSize = ain->remaining;
4041 if (ainSize < sizeof(struct setspref))
4044 ssp = (struct setspref *)ainPtr;
4045 if (ainSize < (sizeof(struct setspref)
4046 + sizeof(struct spref) * ssp->num_servers-1))
4049 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4050 (ssp->flags & DBservers));
4055 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4057 * \param[in] ain the server preferences to be set
4058 * \param[out] aout not in use
4060 * \retval EIO Error if the afs daemon hasn't started yet
4061 * \retval EACCES Error if the user doesn't have super-user credentials
4063 * \post set the server preferences, calling a function
4065 * \notes this may only be performed by the local root user.
4067 DECL_PIOCTL(PSetSPrefs33)
4069 AFS_STATCNT(PSetSPrefs);
4070 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4071 return EIO; /* Inappropriate ioctl for device */
4074 if (!afs_osi_suser(*acred))
4077 afs_setsprefs((struct spref *)afs_pd_where(ain),
4078 afs_pd_remaining(ain) / sizeof(struct spref),
4084 * VIOC_GETSPREFS (43) - Get server ranks
4088 * \param[in] ain the server preferences to get
4089 * \param[out] aout the server preferences information
4091 * \retval EIO Error if the afs daemon hasn't started yet
4092 * \retval ENOENT Error if the sprefrequest is too large
4094 * \post Get the sprefs
4097 * in the hash table of server structs, all servers with the same
4098 * IP address; will be on the same overflow chain; This could be
4099 * sped slightly in some circumstances by having it cache the
4100 * immediately previous slot in the hash table and some
4101 * supporting information; Only reports file servers now.
4103 DECL_PIOCTL(PGetSPrefs)
4105 struct sprefrequest spin; /* input */
4106 struct sprefinfo *spout; /* output */
4107 struct spref *srvout; /* one output component */
4108 int i, j; /* counters for hash table traversal */
4109 struct server *srvr; /* one of CM's server structs */
4111 int vlonly; /* just return vlservers ? */
4114 AFS_STATCNT(PGetSPrefs);
4115 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4116 return EIO; /* Inappropriate ioctl for device */
4118 /* Work out from the size whether we've got a new, or old, style pioctl */
4119 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4120 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4125 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4127 vlonly = (spin.flags & DBservers);
4130 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4131 * quite brave enough to tackle it yet ...
4134 /* struct sprefinfo includes 1 server struct... that size gets added
4135 * in during the loop that follows.
4137 spout = afs_pd_inline(aout,
4138 sizeof(struct sprefinfo) - sizeof(struct spref));
4139 spout->next_offset = spin.offset;
4140 spout->num_servers = 0;
4141 srvout = spout->servers;
4143 ObtainReadLock(&afs_xserver);
4144 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4145 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4146 if (spin.offset > (unsigned short)i) {
4147 continue; /* catch up to where we left off */
4149 spout->next_offset++;
4152 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4153 || (sa->sa_portal == AFS_FSPORT);
4155 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4156 /* only report ranks for vl servers */
4160 /* Check we've actually got the space we're about to use */
4161 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4162 ReleaseReadLock(&afs_xserver); /* no more room! */
4166 srvout->host.s_addr = sa->sa_ip;
4167 srvout->rank = sa->sa_iprank;
4168 spout->num_servers++;
4172 ReleaseReadLock(&afs_xserver);
4174 spout->next_offset = 0; /* start over from the beginning next time */
4179 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4180 int afs_NFSRootOnly = 1;
4182 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4187 * an integer containing the desired exportee flags
4189 * an integer containing the current exporter flags
4191 * \retval ENODEV Error if the exporter doesn't exist
4192 * \retval EACCES Error if the user doesn't have super-user credentials
4195 * Changes the state of various values to reflect the change
4196 * of the export values between nfs and afs.
4198 * \notes Legacy code obtained from IBM.
4200 DECL_PIOCTL(PExportAfs)
4202 afs_int32 export, newint = 0;
4203 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4204 afs_int32 rempags = 0, pagcb = 0;
4205 struct afs_exporter *exporter;
4207 AFS_STATCNT(PExportAfs);
4208 if (afs_pd_getInt(ain, &handleValue) != 0)
4210 type = handleValue >> 24;
4215 exporter = exporter_find(type);
4217 export = handleValue & 3;
4218 changestate = handleValue & 0xfff;
4219 smounts = (handleValue >> 2) & 3;
4220 pwsync = (handleValue >> 4) & 3;
4221 convmode = (handleValue >> 6) & 3;
4222 rempags = (handleValue >> 8) & 3;
4223 pagcb = (handleValue >> 10) & 3;
4225 changestate = (handleValue >> 16) & 0x1;
4226 convmode = (handleValue >> 16) & 0x2;
4227 pwsync = (handleValue >> 16) & 0x4;
4228 smounts = (handleValue >> 16) & 0x8;
4229 export = handleValue & 0xff;
4232 /* Failed finding desired exporter; */
4236 handleValue = exporter->exp_states;
4237 if (afs_pd_putInt(aout, handleValue) != 0)
4240 if (!afs_osi_suser(*acred))
4241 return EACCES; /* Only superuser can do this */
4245 exporter->exp_states |= EXP_EXPORTED;
4247 exporter->exp_states &= ~EXP_EXPORTED;
4251 exporter->exp_states |= EXP_UNIXMODE;
4253 exporter->exp_states &= ~EXP_UNIXMODE;
4257 exporter->exp_states |= EXP_PWSYNC;
4259 exporter->exp_states &= ~EXP_PWSYNC;
4263 afs_NFSRootOnly = 0;
4264 exporter->exp_states |= EXP_SUBMOUNTS;
4266 afs_NFSRootOnly = 1;
4267 exporter->exp_states &= ~EXP_SUBMOUNTS;
4272 exporter->exp_states |= EXP_CLIPAGS;
4274 exporter->exp_states &= ~EXP_CLIPAGS;
4278 exporter->exp_states |= EXP_CALLBACK;
4280 exporter->exp_states &= ~EXP_CALLBACK;
4282 handleValue = exporter->exp_states;
4283 if (afs_pd_putInt(aout, handleValue) != 0)
4287 exporter->exp_states |= EXP_EXPORTED;
4289 exporter->exp_states &= ~EXP_EXPORTED;
4291 exporter->exp_states |= EXP_UNIXMODE;
4293 exporter->exp_states &= ~EXP_UNIXMODE;
4295 exporter->exp_states |= EXP_PWSYNC;
4297 exporter->exp_states &= ~EXP_PWSYNC;
4299 afs_NFSRootOnly = 0;
4300 exporter->exp_states |= EXP_SUBMOUNTS;
4302 afs_NFSRootOnly = 1;
4303 exporter->exp_states &= ~EXP_SUBMOUNTS;
4312 * VIOC_GAG (44) - Silence Cache Manager
4316 * \param[in] ain the flags to either gag or de-gag the cache manager
4317 * \param[out] aout not in use
4319 * \retval EACCES Error if the user doesn't have super-user credentials
4321 * \post set the gag flags, then show these flags
4325 struct gaginfo *gagflags;
4327 if (!afs_osi_suser(*acred))
4330 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4331 if (gagflags == NULL)
4333 afs_showflags = gagflags->showflags;
4339 * VIOC_TWIDDLE (45) - Adjust RX knobs
4343 * \param[in] ain the previous settings of the 'knobs'
4344 * \param[out] aout not in use
4346 * \retval EACCES Error if the user doesn't have super-user credentials
4348 * \post build out the struct rxp, from a struct rx
4350 DECL_PIOCTL(PTwiddleRx)
4352 struct rxparams *rxp;
4354 if (!afs_osi_suser(*acred))
4357 rxp = afs_pd_inline(ain, sizeof(*rxp));
4361 if (rxp->rx_initReceiveWindow)
4362 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4363 if (rxp->rx_maxReceiveWindow)
4364 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4365 if (rxp->rx_initSendWindow)
4366 rx_initSendWindow = rxp->rx_initSendWindow;
4367 if (rxp->rx_maxSendWindow)
4368 rx_maxSendWindow = rxp->rx_maxSendWindow;
4369 if (rxp->rxi_nSendFrags)
4370 rxi_nSendFrags = rxp->rxi_nSendFrags;
4371 if (rxp->rxi_nRecvFrags)
4372 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4373 if (rxp->rxi_OrphanFragSize)
4374 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4375 if (rxp->rx_maxReceiveSize) {
4376 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4377 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4379 if (rxp->rx_MyMaxSendSize)
4380 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4386 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4390 * \param[in] ain not in use
4391 * \param[out] aout initial cache manager params
4394 * Error if the initial parameters are bigger than some PIGGYSIZE
4396 * \post return the initial cache manager parameters
4398 DECL_PIOCTL(PGetInitParams)
4400 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4403 return afs_pd_putBytes(aout, &cm_initParams,
4404 sizeof(struct cm_initparams));
4407 #ifdef AFS_SGI65_ENV
4408 /* They took crget() from us, so fake it. */
4413 cr = crdup(get_current_cred());
4414 memset(cr, 0, sizeof(cred_t));
4415 #if CELL || CELL_PREPARE
4423 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4427 * \param[in] ain not in use
4428 * \param[out] aout value of cryptall
4430 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4432 DECL_PIOCTL(PGetRxkcrypt)
4434 return afs_pd_putInt(aout, cryptall);
4438 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4442 * \param[in] ain the argument whether or not things should be encrypted
4443 * \param[out] aout not in use
4446 * Error if the user doesn't have super-user credentials
4448 * Error if the input is too big, or if the input is outside the
4449 * bounds of what it can be set to
4451 * \post set whether or not things should be encrypted
4454 * may need to be modified at a later date to take into account
4455 * other values for cryptall (beyond true or false)
4457 DECL_PIOCTL(PSetRxkcrypt)
4461 if (!afs_osi_suser(*acred))
4463 if (afs_pd_getInt(ain, &tmpval) != 0)
4465 /* if new mappings added later this will need to be changed */
4466 if (tmpval != 0 && tmpval != 1)
4472 #ifdef AFS_NEED_CLIENTCONTEXT
4474 * Create new credentials to correspond to a remote user with given
4475 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4476 * provide pioctl (and other) services to foreign clients (i.e. nfs
4477 * clients) by using this call to `become' the client.
4480 #define PIOCTL_HEADER 6
4482 HandleClientContext(struct afs_ioctl *ablob, int *com,
4483 afs_ucred_t **acred, afs_ucred_t *credp)
4486 afs_uint32 hostaddr;
4487 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4488 struct afs_exporter *exporter, *outexporter;
4489 afs_ucred_t *newcred;
4490 struct unixuser *au;
4491 afs_uint32 comp = *com & 0xff00;
4493 #if defined(AFS_SUN510_ENV)
4497 #if defined(AFS_SGIMP_ENV)
4498 osi_Assert(ISAFS_GLOCK());
4500 AFS_STATCNT(HandleClientContext);
4501 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4502 /* Must at least include the PIOCTL_HEADER header words
4503 * required by the protocol */
4504 return EINVAL; /* Too small to be good */
4506 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4507 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4509 osi_FreeLargeSpace(inData);
4513 /* Extract information for remote user */
4514 hostaddr = *((afs_uint32 *) ain);
4515 ain += sizeof(hostaddr);
4516 uid = *((afs_uint32 *) ain);
4518 g0 = *((afs_uint32 *) ain);
4520 g1 = *((afs_uint32 *) ain);
4522 *com = *((afs_uint32 *) ain);
4523 ain += sizeof(afs_int32);
4524 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4527 * Of course, one must be root for most of these functions, but
4528 * we'll allow (for knfs) you to set things if the pag is 0 and
4529 * you're setting tokens or unlogging.
4532 if (!afs_osi_suser(credp)) {
4533 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4534 /* Since SGI's suser() returns explicit failure after the call.. */
4537 /* check for acceptable opcodes for normal folks, which are, so far,
4538 * get/set tokens, sysname, and unlog.
4540 if (i != 9 && i != 3 && i != 38 && i != 8) {
4541 osi_FreeLargeSpace(inData);
4546 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4547 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4548 osi_FreeLargeSpace(inData);
4551 * We map uid 0 to nobody to match the mapping that the nfs
4552 * server does and to ensure that the suser() calls in the afs
4553 * code fails for remote client roots.
4555 uid = afs_nobody; /* NFS_NOBODY == -2 */
4559 #ifdef AFS_AIX41_ENV
4562 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4563 #ifdef AFS_AIX51_ENV
4564 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4565 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4566 #elif defined(AFS_LINUX26_ENV)
4567 # ifdef AFS_LINUX26_ONEGROUP_ENV
4568 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4569 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4570 h = ((g0-0x3f00) >> 14);
4571 h = ((g1-0x3f00) >> 14) + h + h + h;
4572 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4574 afs_set_cr_group_info(newcred, groups_alloc(2));
4575 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4576 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4578 #elif defined(AFS_SUN510_ENV)
4581 crsetgroups(newcred, 2, gids);
4583 newcred->cr_groups[0] = g0;
4584 newcred->cr_groups[1] = g1;
4587 newcred->cr_ngrps = 2;
4588 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4589 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4590 newcred->cr_ngroups = 2;
4592 for (i = 2; i < NGROUPS; i++)
4593 newcred->cr_groups[i] = NOGROUP;
4596 if (!(exporter = exporter_find(exporter_type))) {
4597 /* Exporter wasn't initialized or an invalid exporter type */
4601 if (exporter->exp_states & EXP_PWSYNC) {
4602 if (uid != afs_cr_uid(credp)) {
4604 return ENOEXEC; /* XXX Find a better errno XXX */
4607 afs_set_cr_uid(newcred, uid); /* Only temporary */
4608 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4609 /* The client's pag is the only unique identifier for it */
4610 afs_set_cr_uid(newcred, pag);
4612 if (!code && *com == PSETPAG) {
4613 /* Special case for 'setpag' */
4614 afs_uint32 pagvalue = genpag();
4616 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4618 * Note that we leave the 'outexporter' struct held so it won't
4621 au->exporter = outexporter;
4622 if (ablob->out_size >= 4) {
4623 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4626 afs_PutUser(au, WRITE_LOCK);
4629 return PSETPAG; /* Special return for setpag */
4631 EXP_RELE(outexporter);
4634 *com = (*com) | comp;
4637 #endif /* AFS_NEED_CLIENTCONTEXT */
4641 * VIOC_GETCPREFS (50) - Get client interface
4645 * \param[in] ain sprefrequest input
4646 * \param[out] aout spref information
4648 * \retval EIO Error if the afs daemon hasn't started yet
4649 * \retval EINVAL Error if some of the standard args aren't set
4652 * get all interface addresses and other information of the client
4655 DECL_PIOCTL(PGetCPrefs)
4657 struct sprefrequest *spin; /* input */
4658 struct sprefinfo *spout; /* output */
4659 struct spref *srvout; /* one output component */
4663 AFS_STATCNT(PGetCPrefs);
4664 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4665 return EIO; /* Inappropriate ioctl for device */
4667 spin = afs_pd_inline(ain, sizeof(*spin));
4671 /* Output spout relies on writing past the end of arrays. It's horrible,
4672 * but I'm not quite brave enough to tackle it yet */
4673 spout = (struct sprefinfo *)aout->ptr;
4675 maxNumber = spin->num_servers; /* max addrs this time */
4676 srvout = spout->servers;
4678 ObtainReadLock(&afs_xinterface);
4680 /* copy out the client interface information from the
4681 * kernel data structure "interface" to the output buffer
4683 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4684 && (j < maxNumber); i++, j++, srvout++)
4685 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4687 spout->num_servers = j;
4688 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4690 if (i >= afs_cb_interface.numberOfInterfaces)
4691 spout->next_offset = 0; /* start from beginning again */
4693 spout->next_offset = spin->offset + j;
4695 ReleaseReadLock(&afs_xinterface);
4700 * VIOC_SETCPREFS (51) - Set client interface
4704 * \param[in] ain the interfaces you want set
4705 * \param[out] aout not in use
4707 * \retval EIO Error if the afs daemon hasn't started yet
4708 * \retval EINVAL Error if the input is too large for the struct
4709 * \retval ENOMEM Error if there are too many servers
4711 * \post set the callbak interfaces addresses to those of the hosts
4713 DECL_PIOCTL(PSetCPrefs)
4717 struct setspref *sin;
4720 AFS_STATCNT(PSetCPrefs);
4721 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4722 return EIO; /* Inappropriate ioctl for device */
4724 /* Yuck. Input to this function relies on reading past the end of
4725 * structures. Bodge it for now.
4728 ainSize = ain->remaining;
4730 sin = (struct setspref *)ainPtr;
4732 if (ainSize < sizeof(struct setspref))
4734 #if 0 /* num_servers is unsigned */
4735 if (sin->num_servers < 0)
4738 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4741 ObtainWriteLock(&afs_xinterface, 412);
4742 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4743 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4744 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4746 ReleaseWriteLock(&afs_xinterface);
4751 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4756 * the last part of a path to a mount point, which tells us what to flush
4761 * Error if some of the initial arguments aren't set
4763 * Error if the initial argument for the mount point isn't a directory
4765 * Error if the dcache entry isn't set
4768 * remove all of the mount data from the dcache regarding a
4769 * certain mount point
4771 DECL_PIOCTL(PFlushMount)
4776 struct VenusFid tfid;
4779 struct sysname_info sysState;
4780 afs_size_t offset, len;
4782 AFS_STATCNT(PFlushMount);
4786 if (afs_pd_getStringPtr(ain, &mount) != 0)
4789 code = afs_VerifyVCache(avc, areq);
4792 if (vType(avc) != VDIR) {
4795 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4798 Check_AtSys(avc, mount, &sysState, areq);
4799 ObtainReadLock(&tdc->lock);
4801 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4802 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4803 ReleaseReadLock(&tdc->lock);
4804 afs_PutDCache(tdc); /* we're done with the data */
4805 bufp = sysState.name;
4809 tfid.Cell = avc->f.fid.Cell;
4810 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4811 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4812 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4814 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4820 if (tvc->mvstat != 1) {
4825 #ifdef AFS_BOZONLOCK_ENV
4826 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4828 ObtainWriteLock(&tvc->lock, 649);
4829 ObtainWriteLock(&afs_xcbhash, 650);
4830 afs_DequeueCallback(tvc);
4831 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4832 ReleaseWriteLock(&afs_xcbhash);
4833 /* now find the disk cache entries */
4834 afs_TryToSmush(tvc, *acred, 1);
4835 osi_dnlc_purgedp(tvc);
4836 if (tvc->linkData && !(tvc->f.states & CCore)) {
4837 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4838 tvc->linkData = NULL;
4840 ReleaseWriteLock(&tvc->lock);
4841 #ifdef AFS_BOZONLOCK_ENV
4842 afs_BozonUnlock(&tvc->pvnLock, tvc);
4846 if (sysState.allocked)
4847 osi_FreeLargeSpace(bufp);
4852 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4856 * \param[in] ain the flags that control which stats to use
4857 * \param[out] aout not in use
4859 * \retval EACCES Error if the user doesn't have super-user credentials
4860 * \retval EINVAL Error if the flag input is too long
4863 * either enable process RPCStats, disable process RPCStats,
4864 * or clear the process RPCStats
4866 DECL_PIOCTL(PRxStatProc)
4870 if (!afs_osi_suser(*acred))
4873 if (afs_pd_getInt(ain, &flags) != 0)
4876 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4879 if (flags & AFSCALL_RXSTATS_ENABLE) {
4880 rx_enableProcessRPCStats();
4882 if (flags & AFSCALL_RXSTATS_DISABLE) {
4883 rx_disableProcessRPCStats();
4885 if (flags & AFSCALL_RXSTATS_CLEAR) {
4886 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4893 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4897 * \param[in] ain the flags that control which statistics to use
4898 * \param[out] aout not in use
4900 * \retval EACCES Error if the user doesn't have super-user credentials
4901 * \retval EINVAL Error if the flag input is too long
4904 * either enable peer RPCStatws, disable peer RPCStats,
4905 * or clear the peer RPCStats
4907 DECL_PIOCTL(PRxStatPeer)
4911 if (!afs_osi_suser(*acred))
4914 if (afs_pd_getInt(ain, &flags) != 0)
4917 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4920 if (flags & AFSCALL_RXSTATS_ENABLE) {
4921 rx_enablePeerRPCStats();
4923 if (flags & AFSCALL_RXSTATS_DISABLE) {
4924 rx_disablePeerRPCStats();
4926 if (flags & AFSCALL_RXSTATS_CLEAR) {
4927 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4932 DECL_PIOCTL(PPrefetchFromTape)
4934 afs_int32 code, code1;
4935 afs_int32 bytes, outval;
4936 struct afs_conn *tc;
4937 struct rx_call *tcall;
4938 struct AFSVolSync tsync;
4939 struct AFSFetchStatus OutStatus;
4940 struct AFSCallBack CallBack;
4941 struct VenusFid tfid;
4944 struct rx_connection *rxconn;
4946 AFS_STATCNT(PSetAcl);
4950 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4952 Fid = &avc->f.fid.Fid;
4954 tfid.Cell = avc->f.fid.Cell;
4955 tfid.Fid.Volume = Fid->Volume;
4956 tfid.Fid.Vnode = Fid->Vnode;
4957 tfid.Fid.Unique = Fid->Unique;
4959 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4961 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4962 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4965 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4966 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4969 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
4973 tcall = rx_NewCall(rxconn);
4975 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4978 bytes = rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
4980 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
4982 code1 = rx_EndCall(tcall, code);
4986 } while (afs_Analyze
4987 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
4988 SHARED_LOCK, NULL));
4989 /* This call is done only to have the callback things handled correctly */
4990 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
4996 return afs_pd_putInt(aout, outval);
5002 struct afs_conn *tc;
5004 struct FsCmdInputs *Inputs;
5005 struct FsCmdOutputs *Outputs;
5006 struct VenusFid tfid;
5008 struct rx_connection *rxconn;
5013 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
5017 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
5018 if (Outputs == NULL)
5023 Fid = &avc->f.fid.Fid;
5025 tfid.Cell = avc->f.fid.Cell;
5026 tfid.Fid.Volume = Fid->Volume;
5027 tfid.Fid.Vnode = Fid->Vnode;
5028 tfid.Fid.Unique = Fid->Unique;
5030 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5031 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5032 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5036 if (Inputs->command) {
5038 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5042 RXAFS_FsCmd(rxconn, Fid, Inputs,
5043 (struct FsCmdOutputs *)aout);
5047 } while (afs_Analyze
5048 (tc, rxconn, code, &tvc->f.fid, areq,
5049 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5050 /* This call is done to have the callback things handled correctly */
5051 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5052 } else { /* just a status request, return also link data */
5054 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5055 Outputs->chars[0] = 0;
5056 if (vType(tvc) == VLNK) {
5057 ObtainWriteLock(&tvc->lock, 555);
5058 if (afs_HandleLink(tvc, areq) == 0)
5059 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5060 ReleaseWriteLock(&tvc->lock);
5069 DECL_PIOCTL(PNewUuid)
5071 /*AFS_STATCNT(PNewUuid); */
5072 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5073 return EIO; /* Inappropriate ioctl for device */
5075 if (!afs_osi_suser(*acred))
5078 ObtainWriteLock(&afs_xinterface, 555);
5079 afs_uuid_create(&afs_cb_interface.uuid);
5080 ReleaseWriteLock(&afs_xinterface);
5081 ForceAllNewConnections();
5085 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5087 DECL_PIOCTL(PSetCachingThreshold)
5089 afs_int32 getting = 1;
5090 afs_int32 setting = 1;
5091 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5093 if (afs_pd_getInt(ain, &threshold) != 0)
5099 if (setting == 0 && getting == 0)
5103 * If setting, set first, and return the value now in effect
5106 if (!afs_osi_suser(*acred))
5108 cache_bypass_threshold = threshold;
5109 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5110 /* TODO: move to separate pioctl, or enhance pioctl */
5111 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5114 /* Return the current size threshold */
5116 return afs_pd_putInt(aout, cache_bypass_threshold);
5121 #endif /* defined(AFS_CACHE_BYPASS) */
5123 DECL_PIOCTL(PCallBackAddr)
5126 afs_uint32 addr, code;
5130 struct afs_conn *tc;
5132 struct unixuser *tu;
5133 struct srvAddr **addrs;
5134 struct rx_connection *rxconn;
5136 /*AFS_STATCNT(PCallBackAddr); */
5137 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5138 return EIO; /* Inappropriate ioctl for device */
5140 if (!afs_osi_suser(acred))
5143 if (afs_pd_getInt(ain, &addr) != 0)
5146 ObtainReadLock(&afs_xinterface);
5147 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5148 if (afs_cb_interface.addr_in[i] == addr)
5152 ReleaseWriteLock(&afs_xinterface);
5154 if (afs_cb_interface.addr_in[i] != addr)
5157 ObtainReadLock(&afs_xserver); /* Necessary? */
5158 ObtainReadLock(&afs_xsrvAddr);
5161 for (i = 0; i < NSERVERS; i++) {
5162 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5167 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5168 osi_Assert(addrs != NULL);
5170 for (i = 0; i < NSERVERS; i++) {
5171 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5172 if (j >= srvAddrCount)
5178 ReleaseReadLock(&afs_xsrvAddr);
5179 ReleaseReadLock(&afs_xserver);
5181 for (i = 0; i < j; i++) {
5187 /* vlserver has no callback conn */
5188 if (sa->sa_portal == AFS_VLPORT) {
5192 if (!ts->cell) /* not really an active server, anyway, it must */
5193 continue; /* have just been added by setsprefs */
5195 /* get a connection, even if host is down; bumps conn ref count */
5196 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5197 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5198 1 /*force */ , 1 /*create */ , SHARED_LOCK, &rxconn);
5199 afs_PutUser(tu, SHARED_LOCK);
5203 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5204 if (sa->sa_flags & SRVADDR_ISDOWN) {
5205 rx_SetConnDeadTime(rxconn, 3);
5207 #ifdef RX_ENABLE_LOCKS
5209 #endif /* RX_ENABLE_LOCKS */
5210 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5211 #ifdef RX_ENABLE_LOCKS
5213 #endif /* RX_ENABLE_LOCKS */
5215 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5216 } /* Outer loop over addrs */
5217 #endif /* UKERNEL */
5221 DECL_PIOCTL(PDiscon)
5223 static afs_int32 mode = 1; /* Start up in 'off' */
5224 afs_int32 force = 0;
5227 struct vrequest lreq;
5229 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5230 if (!afs_osi_suser(*acred))
5234 mode = flags[0] - 1;
5236 afs_ConflictPolicy = flags[1] - 1;
5240 /* Fake InitReq support for UID override */
5241 memset(&lreq, 0, sizeof(lreq));
5242 lreq.uid = flags[3];
5243 areq = &lreq; /* override areq we got */
5247 * All of these numbers are hard coded in fs.c. If they
5248 * change here, they should change there and vice versa
5251 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5252 if (!AFS_IS_DISCONNECTED) {
5253 ObtainWriteLock(&afs_discon_lock, 999);
5254 afs_DisconGiveUpCallbacks();
5255 afs_RemoveAllConns();
5256 afs_is_disconnected = 1;
5257 afs_is_discon_rw = 1;
5258 ReleaseWriteLock(&afs_discon_lock);
5261 case 1: /* Fully connected, ("online" mode). */
5262 ObtainWriteLock(&afs_discon_lock, 998);
5265 afs_MarkAllServersUp();
5266 code = afs_ResyncDisconFiles(areq, *acred);
5269 if (code && !force) {
5270 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5271 "Please retry or use \"force\".\n");
5275 afs_DisconDiscardAll(*acred);
5277 afs_ClearAllStatdFlag();
5278 afs_is_disconnected = 0;
5279 afs_is_discon_rw = 0;
5280 afs_warnuser("\nSync succeeded. You are back online.\n");
5283 ReleaseWriteLock(&afs_discon_lock);
5295 return afs_pd_putInt(aout, mode);
5298 #define MAX_PIOCTL_TOKENS 10
5300 DECL_PIOCTL(PSetTokens2)
5303 int i, cellNum, primaryFlag;
5305 struct unixuser *tu;
5306 struct vrequest treq;
5307 struct ktc_setTokenData tokenSet;
5308 struct ktc_tokenUnion decodedToken;
5310 memset(&tokenSet, 0, sizeof(tokenSet));
5312 AFS_STATCNT(PSetTokens2);
5313 if (!afs_resourceinit_flag)
5316 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5318 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5319 afs_pd_xdrEnd(ain, &xdrs);
5323 afs_pd_xdrEnd(ain, &xdrs);
5325 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5326 * process from using up the whole of the kernel memory by allocating
5329 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5330 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5334 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5336 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5340 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5341 if (_settok_setParentPag(acred) == 0) {
5342 afs_InitReq(&treq, *acred);
5347 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5348 /* Free any tokens that we've already got */
5349 afs_FreeTokens(&tu->tokens);
5351 /* Iterate across the set of tokens we've received, and stuff them
5352 * into this user's tokenJar
5354 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5355 xdrmem_create(&xdrs,
5356 tokenSet.tokens.tokens_val[i].token_opaque_val,
5357 tokenSet.tokens.tokens_val[i].token_opaque_len,
5360 memset(&decodedToken, 0, sizeof(decodedToken));
5361 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5369 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5370 /* This is untidy - the old token interface supported passing
5371 * the primaryFlag as part of the token interface. Current
5372 * OpenAFS userland never sets this, but it's specified as being
5373 * part of the XG interface, so we should probably still support
5374 * it. Rather than add it to our AddToken interface, just handle
5377 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5378 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5382 /* XXX - We should think more about destruction here. It's likely that
5383 * there is key material in what we're about to throw away, which
5384 * we really should zero out before giving back to the allocator */
5385 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5388 tu->states |= UHasTokens;
5389 tu->states &= ~UTokensBad;
5390 afs_SetPrimary(tu, primaryFlag);
5391 tu->tokenTime = osi_Time();
5393 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5396 afs_ResetUserConns(tu);
5397 afs_PutUser(tu, WRITE_LOCK);
5402 DECL_PIOCTL(PGetTokens2)
5405 struct unixuser *tu = NULL;
5407 char *cellName = NULL;
5412 struct ktc_setTokenData tokenSet;
5414 AFS_STATCNT(PGetTokens);
5415 if (!afs_resourceinit_flag)
5418 memset(&tokenSet, 0, sizeof(tokenSet));
5420 /* No input data - return tokens for primary cell */
5421 /* 4 octets of data is an iterator count */
5422 /* Otherwise, treat as string & return tokens for that cell name */
5424 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5425 /* Integer iterator - return tokens for the n'th cell found for user */
5426 if (afs_pd_getInt(ain, &iterator) != 0)
5428 tu = getNthCell(areq->uid, iterator);
5430 if (afs_pd_remaining(ain) > 0) {
5431 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5436 code = _settok_tokenCell(cellName, &cellNum, NULL);
5439 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5446 if (!(tu->states & UHasTokens)
5447 || !afs_HasValidTokens(tu->tokens, now)) {
5448 tu->states |= (UTokensBad | UNeedsReset);
5449 afs_PutUser(tu, READ_LOCK);
5453 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5457 cell = afs_GetCell(tu->cell, READ_LOCK);
5458 tokenSet.cell = cell->cellName;
5459 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5460 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5464 afs_pd_xdrEnd(aout, &xdrs);
5467 tokenSet.cell = NULL;
5470 afs_PutUser(tu, READ_LOCK);
5472 afs_PutCell(cell, READ_LOCK);
5473 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5478 DECL_PIOCTL(PNFSNukeCreds)
5482 struct unixuser *tu;
5484 AFS_STATCNT(PUnlog);
5485 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5486 return EIO; /* Inappropriate ioctl for device */
5488 if (afs_pd_getUint(ain, &addr) != 0)
5491 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5492 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5493 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5494 afs_PutUser(tu, SHARED_LOCK);
5497 afs_PutUser(tu, SHARED_LOCK);
5498 } else if (!afs_osi_suser(acred)) {
5502 ObtainWriteLock(&afs_xuser, 227);
5503 for (i = 0; i < NUSERS; i++) {
5504 for (tu = afs_users[i]; tu; tu = tu->next) {
5505 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5507 ReleaseWriteLock(&afs_xuser);
5509 afs_LockUser(tu, WRITE_LOCK, 367);
5511 tu->states &= ~UHasTokens;
5512 afs_FreeTokens(&tu->tokens);
5513 afs_ResetUserConns(tu);
5514 afs_PutUser(tu, WRITE_LOCK);
5515 ObtainWriteLock(&afs_xuser, 228);
5517 /* set the expire times to 0, causes
5518 * afs_GCUserData to remove this entry
5521 #endif /* UKERNEL */
5525 ReleaseWriteLock(&afs_xuser);