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;
571 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
572 code=copyin_afs_ioctl((char *)uap->arg, datap);
574 osi_FreeSmallSpace(datap);
576 # if defined(AFS_AIX41_ENV)
579 return (setuerror(code), code);
581 code = HandleIoctl(tvc, uap->com, datap);
582 osi_FreeSmallSpace(datap);
585 # if defined(AFS_AIX41_ENV)
592 # if defined(AFS_AIX41_ENV)
594 # if defined(AFS_AIX51_ENV)
596 code = okioctl(fdes, com, arg, ext, arg2, arg3);
597 # else /* __64BIT__ */
598 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
599 # endif /* __64BIT__ */
600 # else /* !AFS_AIX51_ENV */
601 code = okioctl(fdes, com, arg, ext);
602 # endif /* AFS_AIX51_ENV */
604 # elif defined(AFS_AIX32_ENV)
605 okioctl(fdes, com, arg, ext);
608 # if defined(KERNEL_HAVE_UERROR)
611 # if !defined(AFS_AIX41_ENV)
612 return (getuerror()? -1 : u.u_ioctlrv);
614 return getuerror()? -1 : 0;
621 #elif defined(AFS_SGI_ENV)
622 # if defined(AFS_SGI65_ENV)
623 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
624 rval_t * rvalp, struct vopbd * vbds)
626 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
627 rval_t * rvalp, struct vopbd * vbds)
630 struct afs_ioctl data;
636 AFS_STATCNT(afs_ioctl);
637 if (((cmd >> 8) & 0xff) == 'V') {
638 /* This is a VICEIOCTL call */
639 error = copyin_afs_ioctl(arg, &data);
642 locked = ISAFS_GLOCK();
645 error = HandleIoctl(tvc, cmd, &data);
650 /* No-op call; just return. */
654 #elif defined(AFS_SUN5_ENV)
655 struct afs_ioctl_sys {
662 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
666 int ioctlDone = 0, code = 0;
668 AFS_STATCNT(afs_xioctl);
672 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
673 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
674 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
675 /* This is an AFS vnode */
676 if (((uap->com >> 8) & 0xff) == 'V') {
677 struct afs_ioctl *datap;
679 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
680 code=copyin_afs_ioctl((char *)uap->arg, datap);
682 osi_FreeSmallSpace(datap);
687 code = HandleIoctl(tvc, uap->com, datap);
688 osi_FreeSmallSpace(datap);
696 code = ioctl(uap, rvp);
700 #elif defined(AFS_LINUX22_ENV)
701 struct afs_ioctl_sys {
706 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
709 struct afs_ioctl_sys ua, *uap = &ua;
713 AFS_STATCNT(afs_xioctl);
718 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
719 /* This is an AFS vnode */
720 if (((uap->com >> 8) & 0xff) == 'V') {
721 struct afs_ioctl *datap;
723 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
724 code = copyin_afs_ioctl((char *)uap->arg, datap);
726 osi_FreeSmallSpace(datap);
730 code = HandleIoctl(tvc, uap->com, datap);
731 osi_FreeSmallSpace(datap);
739 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
747 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
751 int ioctlDone = 0, code = 0;
753 AFS_STATCNT(afs_xioctl);
754 if ((code = fdgetf(p, uap->fd, &fd)))
756 if (fd->f_type == DTYPE_VNODE) {
757 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
758 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
759 /* This is an AFS vnode */
760 if (((uap->com >> 8) & 0xff) == 'V') {
761 struct afs_ioctl *datap;
763 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
764 code = copyin_afs_ioctl((char *)uap->arg, datap);
766 osi_FreeSmallSpace(datap);
770 code = HandleIoctl(tvc, uap->com, datap);
771 osi_FreeSmallSpace(datap);
779 return ioctl(p, uap, retval);
783 #elif defined(AFS_XBSD_ENV)
784 # if defined(AFS_FBSD_ENV)
787 afs_xioctl(struct thread *td, struct ioctl_args *uap,
790 afs_proc_t *p = td->td_proc;
791 # elif defined(AFS_NBSD_ENV)
793 afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
803 afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
806 struct filedesc *fdp;
808 int ioctlDone = 0, code = 0;
811 AFS_STATCNT(afs_xioctl);
812 #if defined(AFS_NBSD40_ENV)
813 fdp = p->l_proc->p_fd;
817 #if defined(AFS_NBSD50_ENV)
818 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL)
821 if ((uap->fd >= fdp->fd_nfiles)
822 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL))
825 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
827 /* first determine whether this is any sort of vnode */
828 if (fd->f_type == DTYPE_VNODE) {
829 /* good, this is a vnode; next see if it is an AFS vnode */
830 # if defined(AFS_OBSD_ENV)
832 IsAfsVnode((struct vnode *)fd->
833 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
835 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
837 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)) {
838 /* This is an AFS vnode */
839 #if defined(AFS_NBSD50_ENV)
840 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
842 if (((uap->com >> 8) & 0xff) == 'V') {
844 struct afs_ioctl *datap;
846 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
847 #if defined(AFS_NBSD50_ENV)
848 code = copyin_afs_ioctl(SCARG(uap, data), datap);
850 code = copyin_afs_ioctl((char *)uap->arg, datap);
853 osi_FreeSmallSpace(datap);
857 #if defined(AFS_NBSD50_ENV)
858 code = HandleIoctl(tvc, SCARG(uap, com), datap);
860 code = HandleIoctl(tvc, uap->com, datap);
862 osi_FreeSmallSpace(datap);
869 #if defined(AFS_NBSD50_ENV)
870 fd_putfile(SCARG(uap, fd));
874 # if defined(AFS_FBSD_ENV)
875 # if (__FreeBSD_version >= 900044)
876 return sys_ioctl(td, uap);
878 return ioctl(td, uap);
880 # elif defined(AFS_OBSD_ENV)
881 code = sys_ioctl(p, uap, retval);
882 # elif defined(AFS_NBSD_ENV)
883 code = sys_ioctl(p, uap, retval);
889 #elif defined(UKERNEL)
897 } *uap = (struct a *)get_user_struct()->u_ap;
900 int ioctlDone = 0, code = 0;
902 AFS_STATCNT(afs_xioctl);
907 /* first determine whether this is any sort of vnode */
908 if (fd->f_type == DTYPE_VNODE) {
909 /* good, this is a vnode; next see if it is an AFS vnode */
910 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
911 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
912 /* This is an AFS vnode */
913 if (((uap->com >> 8) & 0xff) == 'V') {
914 struct afs_ioctl *datap;
916 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
917 code=copyin_afs_ioctl((char *)uap->arg, datap);
919 osi_FreeSmallSpace(datap);
922 return (setuerror(code), code);
924 code = HandleIoctl(tvc, uap->com, datap);
925 osi_FreeSmallSpace(datap);
938 #endif /* AFS_HPUX102_ENV */
940 #if defined(AFS_SGI_ENV)
941 /* "pioctl" system call entry point; just pass argument to the parameterized
950 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
954 AFS_STATCNT(afs_pioctl);
956 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
958 # ifdef AFS_SGI64_ENV
965 #elif defined(AFS_FBSD_ENV)
967 afs_pioctl(struct thread *td, void *args, int *retval)
974 } *uap = (struct a *)args;
976 AFS_STATCNT(afs_pioctl);
977 return (afs_syscall_pioctl
978 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
981 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
983 afs_pioctl(afs_proc_t *p, void *args, int *retval)
990 } *uap = (struct a *)args;
992 AFS_STATCNT(afs_pioctl);
993 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
994 return (afs_syscall_pioctl
995 (uap->path, uap->cmd, uap->cmarg, uap->follow,
998 return (afs_syscall_pioctl
999 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1000 # if defined(AFS_FBSD_ENV)
1003 p->p_cred->pc_ucred));
1010 /* macro to avoid adding any more #ifdef's to pioctl code. */
1011 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1012 #define PIOCTL_FREE_CRED() crfree(credp)
1014 #define PIOCTL_FREE_CRED()
1019 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1020 rval_t *vvp, afs_ucred_t *credp)
1022 #ifdef AFS_DARWIN100_ENV
1023 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1024 int follow, afs_ucred_t *credp)
1025 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1026 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1029 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1033 struct afs_ioctl data;
1034 #ifdef AFS_NEED_CLIENTCONTEXT
1035 afs_ucred_t *tmpcred = NULL;
1037 #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)
1038 afs_ucred_t *foreigncreds = NULL;
1041 struct vnode *vp = NULL;
1042 #ifdef AFS_AIX41_ENV
1043 struct ucred *credp = crref(); /* don't free until done! */
1045 #ifdef AFS_LINUX22_ENV
1046 cred_t *credp = crref(); /* don't free until done! */
1050 AFS_STATCNT(afs_syscall_pioctl);
1052 follow = 1; /* compat. with old venus */
1053 code = copyin_afs_ioctl(cmarg, &data);
1056 #if defined(KERNEL_HAVE_UERROR)
1061 if ((com & 0xff) == PSetClientContext) {
1062 #ifdef AFS_NEED_CLIENTCONTEXT
1063 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1064 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1066 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1070 crfree(foreigncreds);
1073 #if defined(KERNEL_HAVE_UERROR)
1074 return (setuerror(code), code);
1079 #else /* AFS_NEED_CLIENTCONTEXT */
1081 #endif /* AFS_NEED_CLIENTCONTEXT */
1083 #ifdef AFS_NEED_CLIENTCONTEXT
1086 * We could have done without temporary setting the u.u_cred below
1087 * (foreigncreds could be passed as param the pioctl modules)
1088 * but calls such as afs_osi_suser() doesn't allow that since it
1089 * references u.u_cred directly. We could, of course, do something
1090 * like afs_osi_suser(cred) which, I think, is better since it
1091 * generalizes and supports multi cred environments...
1093 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1095 credp = foreigncreds;
1096 #elif defined(AFS_AIX41_ENV)
1097 tmpcred = crref(); /* XXX */
1098 crset(foreigncreds);
1099 #elif defined(AFS_HPUX101_ENV)
1100 tmpcred = p_cred(u.u_procp);
1101 set_p_cred(u.u_procp, foreigncreds);
1102 #elif defined(AFS_SGI_ENV)
1103 tmpcred = OSI_GET_CURRENT_CRED();
1104 OSI_SET_CURRENT_CRED(foreigncreds);
1107 u.u_cred = foreigncreds;
1110 #endif /* AFS_NEED_CLIENTCONTEXT */
1111 if ((com & 0xff) == 15) {
1112 /* special case prefetch so entire pathname eval occurs in helper process.
1113 * otherwise, the pioctl call is essentially useless */
1114 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1116 Prefetch(path, &data, follow,
1117 foreigncreds ? foreigncreds : credp);
1119 code = Prefetch(path, &data, follow, osi_curcred());
1122 #if defined(KERNEL_HAVE_UERROR)
1129 #ifdef AFS_AIX41_ENV
1131 lookupname(path, USR, follow, NULL, &vp,
1132 foreigncreds ? foreigncreds : credp);
1134 #ifdef AFS_LINUX22_ENV
1135 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1137 vp = (struct vnode *)dp->d_inode;
1139 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1140 #if defined(AFS_FBSD80_ENV) /* XXX check on 7x */
1143 #endif /* AFS_FBSD80_ENV */
1144 #endif /* AFS_LINUX22_ENV */
1145 #endif /* AFS_AIX41_ENV */
1149 #if defined(KERNEL_HAVE_UERROR)
1157 #if defined(AFS_SUN510_ENV)
1158 if (vp && !IsAfsVnode(vp)) {
1159 struct vnode *realvp;
1161 #ifdef AFS_SUN511_ENV
1162 (VOP_REALVP(vp, &realvp, NULL) == 0)
1164 (VOP_REALVP(vp, &realvp) == 0)
1167 struct vnode *oldvp = vp;
1175 /* now make the call if we were passed no file, or were passed an AFS file */
1176 if (!vp || IsAfsVnode(vp)) {
1177 #if defined(AFS_SUN5_ENV)
1178 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1179 #elif defined(AFS_AIX41_ENV)
1181 struct ucred *cred1, *cred2;
1184 cred1 = cred2 = foreigncreds;
1186 cred1 = cred2 = credp;
1188 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1189 if (cred1 != cred2) {
1190 /* something changed the creds */
1194 #elif defined(AFS_HPUX101_ENV)
1196 struct ucred *cred = p_cred(u.u_procp);
1197 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1199 #elif defined(AFS_SGI_ENV)
1202 credp = OSI_GET_CURRENT_CRED();
1203 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1205 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1206 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1207 #elif defined(UKERNEL)
1208 code = afs_HandlePioctl(vp, com, &data, follow,
1209 &(get_user_struct()->u_cred));
1211 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1214 #if defined(KERNEL_HAVE_UERROR)
1217 code = EINVAL; /* not in /afs */
1222 #if defined(AFS_NEED_CLIENTCONTEXT)
1224 #ifdef AFS_AIX41_ENV
1225 crset(tmpcred); /* restore original credentials */
1227 #if defined(AFS_HPUX101_ENV)
1228 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1229 #elif defined(AFS_SGI_ENV)
1230 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1231 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1232 credp = tmpcred; /* restore original credentials */
1234 osi_curcred() = tmpcred; /* restore original credentials */
1235 #endif /* AFS_HPUX101_ENV */
1236 crfree(foreigncreds);
1239 #endif /* AFS_NEED_CLIENTCONTEXT */
1241 #ifdef AFS_LINUX22_ENV
1244 #if defined(AFS_FBSD80_ENV)
1245 if (VOP_ISLOCKED(vp))
1247 #endif /* AFS_FBSD80_ENV */
1248 AFS_RELE(vp); /* put vnode back */
1252 #if defined(KERNEL_HAVE_UERROR)
1255 return (getuerror());
1261 #ifdef AFS_DARWIN100_ENV
1263 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1264 int follow, afs_ucred_t *credp)
1266 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1267 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1272 #define MAXPIOCTLTOKENLEN \
1273 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1276 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1277 struct afs_ioctl *ablob, int afollow,
1278 afs_ucred_t **acred)
1281 struct vrequest treq;
1283 afs_int32 function, device;
1284 struct afs_pdata input, output;
1285 struct afs_pdata copyInput, copyOutput;
1287 pioctlFunction *pioctlSw;
1289 struct afs_fakestat_state fakestate;
1291 memset(&input, 0, sizeof(input));
1292 memset(&output, 0, sizeof(output));
1294 avc = avp ? VTOAFS(avp) : NULL;
1295 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1296 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1297 AFS_STATCNT(HandlePioctl);
1299 code = afs_InitReq(&treq, *acred);
1303 afs_InitFakeStat(&fakestate);
1305 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1309 device = (acom & 0xff00) >> 8;
1311 case 'V': /* Original pioctls */
1312 pioctlSw = VpioctlSw;
1313 pioctlSwSize = sizeof(VpioctlSw);
1315 case 'C': /* Coordinated/common pioctls */
1316 pioctlSw = CpioctlSw;
1317 pioctlSwSize = sizeof(CpioctlSw);
1319 case 'O': /* Coordinated/common pioctls */
1320 pioctlSw = OpioctlSw;
1321 pioctlSwSize = sizeof(OpioctlSw);
1327 function = acom & 0xff;
1328 if (function >= (pioctlSwSize / sizeof(char *))) {
1333 /* Do all range checking before continuing */
1334 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1335 ablob->in_size < 0 || ablob->out_size < 0) {
1340 code = afs_pd_alloc(&input, ablob->in_size);
1344 if (ablob->in_size > 0) {
1345 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1346 input.ptr[input.remaining] = '\0';
1351 if ((function == 8 && device == 'V') ||
1352 (function == 7 && device == 'C')) { /* PGetTokens */
1353 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1355 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1361 copyOutput = output;
1364 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1365 ©Output, acred);
1367 outSize = copyOutput.ptr - output.ptr;
1369 if (code == 0 && ablob->out_size > 0) {
1370 if (outSize > ablob->out_size) {
1371 code = E2BIG; /* data wont fit in user buffer */
1372 } else if (outSize) {
1373 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1378 afs_pd_free(&input);
1379 afs_pd_free(&output);
1381 afs_PutFakeStat(&fakestate);
1382 return afs_CheckCode(code, &treq, 41);
1386 * VIOCGETFID (22) - Get file ID quickly
1390 * \param[in] ain not in use
1391 * \param[out] aout fid of requested file
1393 * \retval EINVAL Error if some of the initial arguments aren't set
1395 * \post get the file id of some file
1397 DECL_PIOCTL(PGetFID)
1399 AFS_STATCNT(PGetFID);
1402 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1408 * VIOCSETAL (1) - Set access control list
1412 * \param[in] ain the ACL being set
1413 * \param[out] aout the ACL being set returned
1415 * \retval EINVAL Error if some of the standard args aren't set
1417 * \post Changed ACL, via direct writing to the wire
1420 dummy_PSetAcl(char *ain, char *aout)
1425 DECL_PIOCTL(PSetAcl)
1428 struct afs_conn *tconn;
1429 struct AFSOpaque acl;
1430 struct AFSVolSync tsync;
1431 struct AFSFetchStatus OutStatus;
1432 struct rx_connection *rxconn;
1435 AFS_STATCNT(PSetAcl);
1439 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1441 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1442 if (acl.AFSOpaque_len > 1024)
1446 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1448 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1451 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1452 &acl, &OutStatus, &tsync);
1457 } while (afs_Analyze
1458 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1459 SHARED_LOCK, NULL));
1461 /* now we've forgotten all of the access info */
1462 ObtainWriteLock(&afs_xcbhash, 455);
1464 afs_DequeueCallback(avc);
1465 avc->f.states &= ~(CStatd | CUnique);
1466 ReleaseWriteLock(&afs_xcbhash);
1467 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1468 osi_dnlc_purgedp(avc);
1470 /* SXW - Should we flush metadata here? */
1474 int afs_defaultAsynchrony = 0;
1477 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1481 * \param[in] ain sbstruct (store behind structure) input
1482 * \param[out] aout resulting sbstruct
1485 * Error if the user doesn't have super-user credentials
1487 * Error if there isn't enough access to not check the mode bits
1490 * Changes either the default asynchrony (the amount of data that
1491 * can remain to be written when the cache manager returns control
1492 * to the user), or the asyncrony for the specified file.
1494 DECL_PIOCTL(PStoreBehind)
1496 struct sbstruct sbr;
1498 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1501 if (sbr.sb_default != -1) {
1502 if (afs_osi_suser(*acred))
1503 afs_defaultAsynchrony = sbr.sb_default;
1508 if (avc && (sbr.sb_thisfile != -1)) {
1510 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1511 avc->asynchrony = sbr.sb_thisfile;
1516 memset(&sbr, 0, sizeof(sbr));
1517 sbr.sb_default = afs_defaultAsynchrony;
1519 sbr.sb_thisfile = avc->asynchrony;
1522 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1526 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1530 * \param[in] ain not in use
1531 * \param[out] aout not in use
1533 * \retval EACCES Error if the user doesn't have super-user credentials
1535 * \post set the gcpags to GCPAGS_USERDISABLED
1537 DECL_PIOCTL(PGCPAGs)
1539 if (!afs_osi_suser(*acred)) {
1542 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1547 * VIOCGETAL (2) - Get access control list
1551 * \param[in] ain not in use
1552 * \param[out] aout the ACL
1554 * \retval EINVAL Error if some of the standard args aren't set
1555 * \retval ERANGE Error if the vnode of the file id is too large
1556 * \retval -1 Error if getting the ACL failed
1558 * \post Obtain the ACL, based on file ID
1561 * There is a hack to tell which type of ACL is being returned, checks
1562 * the top 2-bytes of the input size to judge what type of ACL it is,
1563 * only for dfs xlator ACLs
1565 DECL_PIOCTL(PGetAcl)
1567 struct AFSOpaque acl;
1568 struct AFSVolSync tsync;
1569 struct AFSFetchStatus OutStatus;
1571 struct afs_conn *tconn;
1573 struct rx_connection *rxconn;
1576 AFS_STATCNT(PGetAcl);
1579 Fid.Volume = avc->f.fid.Fid.Volume;
1580 Fid.Vnode = avc->f.fid.Fid.Vnode;
1581 Fid.Unique = avc->f.fid.Fid.Unique;
1582 if (avc->f.states & CForeign) {
1584 * For a dfs xlator acl we have a special hack so that the
1585 * xlator will distinguish which type of acl will return. So
1586 * we currently use the top 2-bytes (vals 0-4) to tell which
1587 * type of acl to bring back. Horrible hack but this will
1588 * cause the least number of changes to code size and interfaces.
1590 if (Fid.Vnode & 0xc0000000)
1592 Fid.Vnode |= (ain->remaining << 30);
1594 acl.AFSOpaque_val = aout->ptr;
1596 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1598 acl.AFSOpaque_val[0] = '\0';
1599 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1601 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1606 } while (afs_Analyze
1607 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1608 SHARED_LOCK, NULL));
1611 if (acl.AFSOpaque_len == 0)
1612 afs_pd_skip(aout, 1); /* leave the NULL */
1614 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1620 * PNoop returns success. Used for functions which are not implemented
1621 * or are no longer in use.
1625 * \retval Always returns success
1628 * Functions involved in this:
1629 * 17 (VIOCENGROUP) -- used to be enable group;
1630 * 18 (VIOCDISGROUP) -- used to be disable group;
1631 * 2 (?) -- get/set cache-bypass size threshold
1640 * PBogus returns fail. Used for functions which are not implemented or
1641 * are no longer in use.
1645 * \retval EINVAL Always returns this value
1648 * Functions involved in this:
1654 * 13 (VIOCGETTIME) -- used to be quick check time;
1655 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1656 * 16 (VIOCNOP) -- used to be testing code;
1657 * 19 (VIOCLISTGROUPS) -- used to be list group;
1658 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1659 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1660 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1661 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1662 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1663 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1664 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1665 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1666 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1667 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1668 * 68 (?) -- arla: fetch stats;
1672 AFS_STATCNT(PBogus);
1677 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1681 * \param[in] ain not in use (avc used to pass in file id)
1682 * \param[out] aout cell name
1684 * \retval EINVAL Error if some of the standard args aren't set
1685 * \retval ESRCH Error if the file isn't part of a cell
1687 * \post Get a cell based on a passed in file id
1689 DECL_PIOCTL(PGetFileCell)
1693 AFS_STATCNT(PGetFileCell);
1696 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1700 if (afs_pd_putString(aout, tcell->cellName) != 0)
1703 afs_PutCell(tcell, READ_LOCK);
1708 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1712 * \param[in] ain not in use
1713 * \param[out] aout cell name
1716 * Error if the afs daemon hasn't started yet
1718 * Error if the machine isn't part of a cell, for whatever reason
1720 * \post Get the primary cell that the machine is a part of.
1722 DECL_PIOCTL(PGetWSCell)
1724 struct cell *tcell = NULL;
1726 AFS_STATCNT(PGetWSCell);
1727 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1728 return EIO; /* Inappropriate ioctl for device */
1730 tcell = afs_GetPrimaryCell(READ_LOCK);
1731 if (!tcell) /* no primary cell? */
1734 if (afs_pd_putString(aout, tcell->cellName) != 0)
1736 afs_PutCell(tcell, READ_LOCK);
1741 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1745 * \param[in] ain not in use (user id found via areq)
1746 * \param[out] aout cell name
1749 * Error if the user id doesn't have a primary cell specified
1751 * \post Get the primary cell for a certain user, based on the user's uid
1753 DECL_PIOCTL(PGetUserCell)
1756 struct unixuser *tu;
1759 AFS_STATCNT(PGetUserCell);
1760 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1761 return EIO; /* Inappropriate ioctl for device */
1763 /* return the cell name of the primary cell for this user */
1764 i = UHash(areq->uid);
1765 ObtainWriteLock(&afs_xuser, 224);
1766 for (tu = afs_users[i]; tu; tu = tu->next) {
1767 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1769 ReleaseWriteLock(&afs_xuser);
1770 afs_LockUser(tu, READ_LOCK, 0);
1775 tcell = afs_GetCell(tu->cell, READ_LOCK);
1776 afs_PutUser(tu, READ_LOCK);
1780 if (afs_pd_putString(aout, tcell->cellName) != 0)
1782 afs_PutCell(tcell, READ_LOCK);
1785 ReleaseWriteLock(&afs_xuser);
1790 /* Work out which cell we're changing tokens for */
1792 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1800 if (cellName && strlen(cellName) > 0) {
1801 cell = afs_GetCellByName(cellName, READ_LOCK);
1803 cell = afs_GetPrimaryCell(READ_LOCK);
1814 *cellNum = cell->cellNum;
1815 afs_PutCell(cell, READ_LOCK);
1822 _settok_setParentPag(afs_ucred_t **cred) {
1824 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1826 osi_procname(procname, 256);
1827 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1828 MyPidxx2Pid(MyPidxx), procname);
1829 return setpag(osi_curproc(), cred, -1, &pag, 1);
1831 return setpag(cred, -1, &pag, 1);
1836 * VIOCSETTOK (3) - Set authentication tokens
1840 * \param[in] ain the krb tickets from which to set the afs tokens
1841 * \param[out] aout not in use
1844 * Error if the ticket is either too long or too short
1846 * Error if the AFS initState is below 101
1848 * Error if the cell for which the Token is being set can't be found
1851 * Set the Tokens for a specific cell name, unless there is none set,
1852 * then default to primary
1855 DECL_PIOCTL(PSetTokens)
1860 struct unixuser *tu;
1861 struct ClearToken clear;
1865 struct vrequest treq;
1866 afs_int32 flag, set_parent_pag = 0;
1868 AFS_STATCNT(PSetTokens);
1869 if (!afs_resourceinit_flag) {
1873 if (afs_pd_getInt(ain, &stLen) != 0)
1876 stp = afs_pd_where(ain); /* remember where the ticket is */
1877 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1878 return EINVAL; /* malloc may fail */
1879 if (afs_pd_skip(ain, stLen) != 0)
1882 if (afs_pd_getInt(ain, &size) != 0)
1884 if (size != sizeof(struct ClearToken))
1887 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1890 if (clear.AuthHandle == -1)
1891 clear.AuthHandle = 999; /* more rxvab compat stuff */
1893 if (afs_pd_remaining(ain) != 0) {
1894 /* still stuff left? we've got primary flag and cell name.
1897 if (afs_pd_getInt(ain, &flag) != 0)
1900 /* some versions of gcc appear to need != 0 in order to get this
1902 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1907 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1910 code = _settok_tokenCell(cellName, &cellNum, NULL);
1914 /* default to primary cell, primary id */
1915 code = _settok_tokenCell(NULL, &cellNum, &flag);
1920 if (set_parent_pag) {
1921 if (_settok_setParentPag(acred) == 0) {
1922 afs_InitReq(&treq, *acred);
1927 /* now we just set the tokens */
1928 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1929 /* Set tokens destroys any that are already there */
1930 afs_FreeTokens(&tu->tokens);
1931 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1933 afs_stats_cmfullperf.authent.TicketUpdates++;
1934 afs_ComputePAGStats();
1935 #endif /* AFS_NOSTATS */
1936 tu->states |= UHasTokens;
1937 tu->states &= ~UTokensBad;
1938 afs_SetPrimary(tu, flag);
1939 tu->tokenTime = osi_Time();
1940 afs_ResetUserConns(tu);
1941 afs_NotifyUser(tu, UTokensObtained);
1942 afs_PutUser(tu, WRITE_LOCK);
1948 * VIOCGETVOLSTAT (4) - Get volume status
1952 * \param[in] ain not in use
1953 * \param[out] aout status of the volume
1955 * \retval EINVAL Error if some of the standard args aren't set
1958 * The status of a volume (based on the FID of the volume), or an
1959 * offline message /motd
1961 DECL_PIOCTL(PGetVolumeStatus)
1964 char *offLineMsg = afs_osi_Alloc(256);
1965 char *motd = afs_osi_Alloc(256);
1966 struct afs_conn *tc;
1968 struct AFSFetchVolumeStatus volstat;
1970 struct rx_connection *rxconn;
1973 osi_Assert(offLineMsg != NULL);
1974 osi_Assert(motd != NULL);
1975 AFS_STATCNT(PGetVolumeStatus);
1982 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1984 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1987 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
1988 &Name, &offLineMsg, &motd);
1993 } while (afs_Analyze
1994 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
1995 SHARED_LOCK, NULL));
1999 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
2000 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2002 if (afs_pd_putString(aout, volName) != 0)
2004 if (afs_pd_putString(aout, offLineMsg) != 0)
2006 if (afs_pd_putString(aout, motd) != 0)
2009 afs_osi_Free(offLineMsg, 256);
2010 afs_osi_Free(motd, 256);
2015 * VIOCSETVOLSTAT (5) - Set volume status
2020 * values to set the status at, offline message, message of the day,
2021 * volume name, minimum quota, maximum quota
2023 * status of a volume, offlines messages, minimum quota, maximumm quota
2026 * Error if some of the standard args aren't set
2028 * Error if the volume is read only, or a backup volume
2030 * Error if the volume can't be accessed
2032 * Error if the volume name, offline message, and motd are too big
2035 * Set the status of a volume, including any offline messages,
2036 * a minimum quota, and a maximum quota
2038 DECL_PIOCTL(PSetVolumeStatus)
2043 struct afs_conn *tc;
2045 struct AFSFetchVolumeStatus volstat;
2046 struct AFSStoreVolumeStatus storeStat;
2048 struct rx_connection *rxconn;
2051 AFS_STATCNT(PSetVolumeStatus);
2055 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2057 if (tvp->states & (VRO | VBackup)) {
2058 afs_PutVolume(tvp, READ_LOCK);
2061 afs_PutVolume(tvp, READ_LOCK);
2066 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2069 if (afs_pd_getStringPtr(ain, &volName) != 0)
2071 if (strlen(volName) > 32)
2074 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2076 if (strlen(offLineMsg) > 256)
2079 if (afs_pd_getStringPtr(ain, &motd) != 0)
2081 if (strlen(motd) > 256)
2084 /* Done reading ... */
2087 if (volstat.MinQuota != -1) {
2088 storeStat.MinQuota = volstat.MinQuota;
2089 storeStat.Mask |= AFS_SETMINQUOTA;
2091 if (volstat.MaxQuota != -1) {
2092 storeStat.MaxQuota = volstat.MaxQuota;
2093 storeStat.Mask |= AFS_SETMAXQUOTA;
2096 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2098 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2101 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2102 volName, offLineMsg, motd);
2107 } while (afs_Analyze
2108 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2109 SHARED_LOCK, NULL));
2113 /* we are sending parms back to make compat. with prev system. should
2114 * change interface later to not ask for current status, just set new
2117 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2119 if (afs_pd_putString(aout, volName) != 0)
2121 if (afs_pd_putString(aout, offLineMsg) != 0)
2123 if (afs_pd_putString(aout, motd) != 0)
2130 * VIOCFLUSH (6) - Invalidate cache entry
2134 * \param[in] ain not in use
2135 * \param[out] aout not in use
2137 * \retval EINVAL Error if some of the standard args aren't set
2139 * \post Flush any information the cache manager has on an entry
2143 AFS_STATCNT(PFlush);
2146 #ifdef AFS_BOZONLOCK_ENV
2147 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2149 ObtainWriteLock(&avc->lock, 225);
2150 afs_ResetVCache(avc, *acred, 0);
2151 ReleaseWriteLock(&avc->lock);
2152 #ifdef AFS_BOZONLOCK_ENV
2153 afs_BozonUnlock(&avc->pvnLock, avc);
2159 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2164 * the last component in a path, related to mountpoint that we're
2165 * looking for information about
2167 * volume, cell, link data
2169 * \retval EINVAL Error if some of the standard args aren't set
2170 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2171 * \retval EIO Error if the link data can't be accessed
2173 * \post Get the volume, and cell, as well as the link data for a mount point
2175 DECL_PIOCTL(PNewStatMount)
2180 struct VenusFid tfid;
2183 struct sysname_info sysState;
2184 afs_size_t offset, len;
2186 AFS_STATCNT(PNewStatMount);
2190 if (afs_pd_getStringPtr(ain, &name) != 0)
2193 code = afs_VerifyVCache(avc, areq);
2196 if (vType(avc) != VDIR) {
2199 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2202 Check_AtSys(avc, name, &sysState, areq);
2203 ObtainReadLock(&tdc->lock);
2205 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2206 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2207 ReleaseReadLock(&tdc->lock);
2208 afs_PutDCache(tdc); /* we're done with the data */
2209 bufp = sysState.name;
2213 tfid.Cell = avc->f.fid.Cell;
2214 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2215 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2216 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2218 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2224 if (tvc->mvstat != 1) {
2229 ObtainWriteLock(&tvc->lock, 226);
2230 code = afs_HandleLink(tvc, areq);
2232 if (tvc->linkData) {
2233 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2236 /* we have the data */
2237 if (afs_pd_putString(aout, tvc->linkData) != 0)
2243 ReleaseWriteLock(&tvc->lock);
2246 if (sysState.allocked)
2247 osi_FreeLargeSpace(bufp);
2252 * A helper function to get the n'th cell which a particular user has tokens
2253 * for. This is racy. If new tokens are added whilst we're iterating, then
2254 * we may return some cells twice. If tokens expire mid run, then we'll
2255 * miss some cells from our output. So, could be better, but that would
2256 * require an interface change.
2259 static struct unixuser *
2260 getNthCell(afs_int32 uid, afs_int32 iterator) {
2262 struct unixuser *tu = NULL;
2265 ObtainReadLock(&afs_xuser);
2266 for (tu = afs_users[i]; tu; tu = tu->next) {
2267 if (tu->uid == uid && (tu->states & UHasTokens)) {
2268 if (iterator-- == 0)
2269 break; /* are we done yet? */
2275 ReleaseReadLock(&afs_xuser);
2277 afs_LockUser(tu, READ_LOCK, 0);
2284 * VIOCGETTOK (8) - Get authentication tokens
2288 * \param[in] ain cellid to return tokens for
2289 * \param[out] aout token
2292 * Error if the afs daemon hasn't started yet
2294 * Error if the input parameter is out of the bounds of the available
2297 * Error if there aren't tokens for this cell
2300 * If the input paramater exists, get the token that corresponds to
2301 * the parameter value, if there is no token at this value, get the
2302 * token for the first cell
2304 * \notes "it's a weird interface (from comments in the code)"
2307 DECL_PIOCTL(PGetTokens)
2310 struct unixuser *tu = NULL;
2311 union tokenUnion *token;
2312 afs_int32 iterator = 0;
2317 AFS_STATCNT(PGetTokens);
2318 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2319 return EIO; /* Inappropriate ioctl for device */
2321 /* weird interface. If input parameter is present, it is an integer and
2322 * we're supposed to return the parm'th tokens for this unix uid.
2323 * If not present, we just return tokens for cell 1.
2324 * If counter out of bounds, return EDOM.
2325 * If no tokens for the particular cell, return ENOTCONN.
2326 * Also, if this mysterious parm is present, we return, along with the
2327 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2328 * at the end, in that order.
2330 newStyle = (afs_pd_remaining(ain) > 0);
2332 if (afs_pd_getInt(ain, &iterator) != 0)
2336 tu = getNthCell(areq->uid, iterator);
2338 cellNum = afs_GetPrimaryCellNum();
2340 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2345 if (!(tu->states & UHasTokens)
2346 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2347 tu->states |= (UTokensBad | UNeedsReset);
2348 afs_NotifyUser(tu, UTokensDropped);
2349 afs_PutUser(tu, READ_LOCK);
2352 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2354 /* If they don't have an RXKAD token, but do have other tokens,
2355 * then sadly there's nothing this interface can do to help them. */
2359 /* for compat, we try to return 56 byte tix if they fit */
2360 iterator = token->rxkad.ticketLen;
2362 iterator = 56; /* # of bytes we're returning */
2364 if (afs_pd_putInt(aout, iterator) != 0)
2366 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2368 if (token->rxkad.ticketLen < 56) {
2369 /* Tokens are always 56 bytes or larger */
2370 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2375 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2377 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2378 sizeof(struct ClearToken)) != 0)
2382 /* put out primary id and cell name, too */
2383 iterator = (tu->states & UPrimary ? 1 : 0);
2384 if (afs_pd_putInt(aout, iterator) != 0)
2386 tcell = afs_GetCell(tu->cell, READ_LOCK);
2388 if (afs_pd_putString(aout, tcell->cellName) != 0)
2390 afs_PutCell(tcell, READ_LOCK);
2392 if (afs_pd_putString(aout, "") != 0)
2395 /* Got here, all is good */
2398 afs_PutUser(tu, READ_LOCK);
2403 * VIOCUNLOG (9) - Invalidate tokens
2407 * \param[in] ain not in use
2408 * \param[out] aout not in use
2410 * \retval EIO Error if the afs daemon hasn't been started yet
2412 * \post remove tokens from a user, specified by the user id
2414 * \notes sets the token's time to 0, which then causes it to be removed
2415 * \notes Unlog is the same as un-pag in OpenAFS
2420 struct unixuser *tu;
2422 AFS_STATCNT(PUnlog);
2423 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2424 return EIO; /* Inappropriate ioctl for device */
2426 i = UHash(areq->uid);
2427 ObtainWriteLock(&afs_xuser, 227);
2428 for (tu = afs_users[i]; tu; tu = tu->next) {
2429 if (tu->uid == areq->uid) {
2431 ReleaseWriteLock(&afs_xuser);
2433 afs_LockUser(tu, WRITE_LOCK, 366);
2435 tu->states &= ~UHasTokens;
2436 afs_FreeTokens(&tu->tokens);
2437 afs_NotifyUser(tu, UTokensDropped);
2438 /* We have to drop the lock over the call to afs_ResetUserConns,
2439 * since it obtains the afs_xvcache lock. We could also keep
2440 * the lock, and modify ResetUserConns to take parm saying we
2441 * obtained the lock already, but that is overkill. By keeping
2442 * the "tu" pointer held over the released lock, we guarantee
2443 * that we won't lose our place, and that we'll pass over
2444 * every user conn that existed when we began this call.
2446 afs_ResetUserConns(tu);
2447 afs_PutUser(tu, WRITE_LOCK);
2448 ObtainWriteLock(&afs_xuser, 228);
2450 /* set the expire times to 0, causes
2451 * afs_GCUserData to remove this entry
2454 #endif /* UKERNEL */
2457 ReleaseWriteLock(&afs_xuser);
2462 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2466 * \param[in] ain host address to be set
2467 * \param[out] aout old host address
2470 * depending on whether or not a variable is set, either get the host
2471 * for the cache manager monitor, or set the old address and give it
2474 * \notes Errors turn off mariner
2476 DECL_PIOCTL(PMariner)
2478 afs_int32 newHostAddr;
2479 afs_int32 oldHostAddr;
2481 AFS_STATCNT(PMariner);
2483 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2486 oldHostAddr = 0xffffffff; /* disabled */
2488 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2491 if (newHostAddr == 0xffffffff) {
2492 /* disable mariner operations */
2494 } else if (newHostAddr) {
2496 afs_marinerHost = newHostAddr;
2499 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2506 * VIOCCKSERV (10) - Check that servers are up
2510 * \param[in] ain name of the cell
2511 * \param[out] aout current down server list
2513 * \retval EIO Error if the afs daemon hasn't started yet
2514 * \retval EACCES Error if the user doesn't have super-user credentials
2515 * \retval ENOENT Error if we are unable to obtain the cell
2518 * Either a fast check (where it doesn't contact servers) or a
2519 * local check (checks local cell only)
2521 DECL_PIOCTL(PCheckServers)
2526 char *cellName = NULL;
2528 struct chservinfo *pcheck;
2530 AFS_STATCNT(PCheckServers);
2532 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2533 return EIO; /* Inappropriate ioctl for device */
2535 /* This is tricky, because we need to peak at the datastream to see
2536 * what we're getting. For now, let's cheat. */
2538 /* ain contains either an int32 or a string */
2539 if (ain->remaining == 0)
2542 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2543 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2547 if (pcheck->tinterval >= 0) {
2548 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2550 if (pcheck->tinterval > 0) {
2551 if (!afs_osi_suser(*acred))
2553 afs_probe_interval = pcheck->tinterval;
2557 temp = pcheck->tflags;
2559 cellName = pcheck->tbuffer;
2560 } else { /* For pre afs3.3 versions */
2561 if (afs_pd_getInt(ain, &temp) != 0)
2563 if (afs_pd_remaining(ain) > 0) {
2564 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2570 * 1: fast check, don't contact servers.
2571 * 2: local cell only.
2574 /* have cell name, too */
2575 cellp = afs_GetCellByName(cellName, READ_LOCK);
2580 if (!cellp && (temp & 2)) {
2581 /* use local cell */
2582 cellp = afs_GetPrimaryCell(READ_LOCK);
2584 if (!(temp & 1)) { /* if not fast, call server checker routine */
2585 afs_CheckServers(1, cellp); /* check down servers */
2586 afs_CheckServers(0, cellp); /* check up servers */
2588 /* now return the current down server list */
2589 ObtainReadLock(&afs_xserver);
2590 for (i = 0; i < NSERVERS; i++) {
2591 for (ts = afs_servers[i]; ts; ts = ts->next) {
2592 if (cellp && ts->cell != cellp)
2593 continue; /* cell spec'd and wrong */
2594 if ((ts->flags & SRVR_ISDOWN)
2595 && ts->addr->sa_portal != ts->cell->vlport) {
2596 afs_pd_putInt(aout, ts->addr->sa_ip);
2600 ReleaseReadLock(&afs_xserver);
2602 afs_PutCell(cellp, READ_LOCK);
2607 * VIOCCKBACK (11) - Check backup volume mappings
2611 * \param[in] ain not in use
2612 * \param[out] aout not in use
2614 * \retval EIO Error if the afs daemon hasn't started yet
2617 * Check the root volume, and then check the names if the volume
2618 * check variable is set to force, has expired, is busy, or if
2619 * the mount points variable is set
2621 DECL_PIOCTL(PCheckVolNames)
2623 AFS_STATCNT(PCheckVolNames);
2624 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2625 return EIO; /* Inappropriate ioctl for device */
2627 afs_CheckRootVolume();
2628 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2629 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2634 * VIOCCKCONN (12) - Check connections for a user
2638 * \param[in] ain not in use
2639 * \param[out] aout not in use
2642 * Error if no user is specififed, the user has no tokens set,
2643 * or if the user's tokens are bad
2646 * check to see if a user has the correct authentication.
2647 * If so, allow access.
2649 * \notes Check the connections to all the servers specified
2651 DECL_PIOCTL(PCheckAuth)
2655 struct sa_conn_vector *tcv;
2656 struct unixuser *tu;
2659 AFS_STATCNT(PCheckAuth);
2660 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2661 return EIO; /* Inappropriate ioctl for device */
2664 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2668 /* we have a user */
2669 ObtainReadLock(&afs_xsrvAddr);
2670 ObtainReadLock(&afs_xconn);
2672 /* any tokens set? */
2673 if ((tu->states & UHasTokens) == 0)
2675 /* all connections in cell 1 working? */
2676 for (i = 0; i < NSERVERS; i++) {
2677 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2678 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2679 if (tcv->user == tu && (tu->states & UTokensBad))
2684 ReleaseReadLock(&afs_xsrvAddr);
2685 ReleaseReadLock(&afs_xconn);
2686 afs_PutUser(tu, READ_LOCK);
2688 if (afs_pd_putInt(aout, retValue) != 0)
2694 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2699 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2705 AFS_STATCNT(Prefetch);
2708 tp = osi_AllocLargeSpace(1024);
2709 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2711 osi_FreeLargeSpace(tp);
2714 if (afs_BBusy()) { /* do this as late as possible */
2715 osi_FreeLargeSpace(tp);
2716 return EWOULDBLOCK; /* pretty close */
2718 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2719 (afs_size_t) 0, tp, (void *)0, (void *)0);
2724 * VIOCWHEREIS (14) - Find out where a volume is located
2728 * \param[in] ain not in use
2729 * \param[out] aout volume location
2731 * \retval EINVAL Error if some of the default arguments don't exist
2732 * \retval ENODEV Error if there is no such volume
2734 * \post fine a volume, based on a volume file id
2736 * \notes check each of the servers specified
2738 DECL_PIOCTL(PFindVolume)
2745 AFS_STATCNT(PFindVolume);
2748 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2752 for (i = 0; i < AFS_MAXHOSTS; i++) {
2753 ts = tvp->serverHost[i];
2756 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2761 if (i < AFS_MAXHOSTS) {
2762 /* still room for terminating NULL, add it on */
2763 if (afs_pd_putInt(aout, 0) != 0) {
2769 afs_PutVolume(tvp, READ_LOCK);
2774 * VIOCACCESS (20) - Access using PRS_FS bits
2778 * \param[in] ain PRS_FS bits
2779 * \param[out] aout not in use
2781 * \retval EINVAL Error if some of the initial arguments aren't set
2782 * \retval EACCES Error if access is denied
2784 * \post check to make sure access is allowed
2786 DECL_PIOCTL(PViceAccess)
2791 AFS_STATCNT(PViceAccess);
2795 code = afs_VerifyVCache(avc, areq);
2799 if (afs_pd_getInt(ain, &temp) != 0)
2802 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2810 * VIOC_GETPAG (13) - Get PAG value
2814 * \param[in] ain not in use
2815 * \param[out] aout PAG value or NOPAG
2817 * \post get PAG value for the caller's cred
2819 DECL_PIOCTL(PGetPAG)
2823 pag = PagInCred(*acred);
2825 return afs_pd_putInt(aout, pag);
2828 DECL_PIOCTL(PPrecache)
2832 /*AFS_STATCNT(PPrecache);*/
2833 if (!afs_osi_suser(*acred))
2836 if (afs_pd_getInt(ain, &newValue) != 0)
2839 afs_preCache = newValue*1024;
2844 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2848 * \param[in] ain the size the venus cache should be set to
2849 * \param[out] aout not in use
2851 * \retval EACCES Error if the user doesn't have super-user credentials
2852 * \retval EROFS Error if the cache is set to be in memory
2855 * Set the cache size based on user input. If no size is given,
2856 * set it to the default OpenAFS cache size.
2859 * recompute the general cache parameters for every single block allocated
2861 DECL_PIOCTL(PSetCacheSize)
2866 AFS_STATCNT(PSetCacheSize);
2868 if (!afs_osi_suser(*acred))
2870 /* too many things are setup initially in mem cache version */
2871 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2873 if (afs_pd_getInt(ain, &newValue) != 0)
2876 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2878 if (newValue < afs_min_cache)
2879 afs_cacheBlocks = afs_min_cache;
2881 afs_cacheBlocks = newValue;
2883 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2884 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2885 afs_MaybeWakeupTruncateDaemon();
2886 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2887 afs_osi_Wait(1000, 0, 0);
2888 afs_MaybeWakeupTruncateDaemon();
2893 #define MAXGCSTATS 16
2895 * VIOCGETCACHEPARMS (40) - Get cache stats
2899 * \param[in] ain afs index flags
2900 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2902 * \post Get the cache blocks, and how many of the cache blocks there are
2904 DECL_PIOCTL(PGetCacheSize)
2906 afs_int32 results[MAXGCSTATS];
2908 struct dcache * tdc;
2911 AFS_STATCNT(PGetCacheSize);
2913 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2914 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2915 } else if (afs_pd_remaining(ain) == 0) {
2921 memset(results, 0, sizeof(results));
2922 results[0] = afs_cacheBlocks;
2923 results[1] = afs_blocksUsed;
2924 results[2] = afs_cacheFiles;
2927 for (i = 0; i < afs_cacheFiles; i++) {
2928 if (afs_indexFlags[i] & IFFree) results[3]++;
2930 } else if (2 == flags){
2931 for (i = 0; i < afs_cacheFiles; i++) {
2932 if (afs_indexFlags[i] & IFFree) results[3]++;
2933 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2934 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2935 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2936 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2937 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2939 tdc = afs_indexTable[i];
2942 size = tdc->validPos;
2943 if ( 0 < size && size < (1<<12) ) results[10]++;
2944 else if (size < (1<<14) ) results[11]++;
2945 else if (size < (1<<16) ) results[12]++;
2946 else if (size < (1<<18) ) results[13]++;
2947 else if (size < (1<<20) ) results[14]++;
2948 else if (size >= (1<<20) ) results[15]++;
2952 return afs_pd_putBytes(aout, results, sizeof(results));
2956 * VIOCFLUSHCB (25) - Flush callback only
2960 * \param[in] ain not in use
2961 * \param[out] aout not in use
2963 * \retval EINVAL Error if some of the standard args aren't set
2964 * \retval 0 0 returned if the volume is set to read-only
2967 * Flushes callbacks, by setting the length of callbacks to one,
2968 * setting the next callback to be sent to the CB_DROPPED value,
2969 * and then dequeues everything else.
2971 DECL_PIOCTL(PRemoveCallBack)
2973 struct afs_conn *tc;
2975 struct AFSCallBack CallBacks_Array[1];
2976 struct AFSCBFids theFids;
2977 struct AFSCBs theCBs;
2978 struct rx_connection *rxconn;
2981 AFS_STATCNT(PRemoveCallBack);
2984 if (avc->f.states & CRO)
2985 return 0; /* read-only-ness can't change */
2986 ObtainWriteLock(&avc->lock, 229);
2987 theFids.AFSCBFids_len = 1;
2988 theCBs.AFSCBs_len = 1;
2989 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2990 theCBs.AFSCBs_val = CallBacks_Array;
2991 CallBacks_Array[0].CallBackType = CB_DROPPED;
2992 if (avc->callback) {
2994 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2996 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
2998 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3002 /* don't set code on failure since we wouldn't use it */
3003 } while (afs_Analyze
3004 (tc, rxconn, code, &avc->f.fid, areq,
3005 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3007 ObtainWriteLock(&afs_xcbhash, 457);
3008 afs_DequeueCallback(avc);
3010 avc->f.states &= ~(CStatd | CUnique);
3011 ReleaseWriteLock(&afs_xcbhash);
3012 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3013 osi_dnlc_purgedp(avc);
3015 ReleaseWriteLock(&avc->lock);
3020 * VIOCNEWCELL (26) - Configure new cell
3025 * the name of the cell, the hosts that will be a part of the cell,
3026 * whether or not it's linked with another cell, the other cell it's
3027 * linked with, the file server port, and the volume server port
3031 * \retval EIO Error if the afs daemon hasn't started yet
3032 * \retval EACCES Error if the user doesn't have super-user cedentials
3033 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3035 * \post creates a new cell
3037 DECL_PIOCTL(PNewCell)
3039 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3040 char *newcell = NULL;
3041 char *linkedcell = NULL;
3043 afs_int32 linkedstate = 0;
3044 afs_int32 fsport = 0, vlport = 0;
3047 AFS_STATCNT(PNewCell);
3048 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3049 return EIO; /* Inappropriate ioctl for device */
3051 if (!afs_osi_suser(*acred))
3054 if (afs_pd_getInt(ain, &magic) != 0)
3056 if (magic != 0x12345678)
3059 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3060 * server addresses while the 3.5 fs newcell command passes
3061 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3064 * This whole logic is bogus, because it relies on the newer command
3065 * sending its 12th address as 0.
3067 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3070 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3071 if (newcell[0] != '\0') {
3074 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3077 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3078 if (afs_pd_getBytes(ain, &cellHosts,
3079 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3081 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3084 if (afs_pd_getInt(ain, &fsport) != 0)
3087 fsport = 0; /* Privileged ports not allowed */
3089 if (afs_pd_getInt(ain, &vlport) != 0)
3092 vlport = 0; /* Privileged ports not allowed */
3094 if (afs_pd_getInt(ain, &ls) != 0)
3097 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3101 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3103 linkedstate |= CLinkedCell;
3106 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3108 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3113 DECL_PIOCTL(PNewAlias)
3115 /* create a new cell alias */
3116 char *realName, *aliasName;
3118 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3119 return EIO; /* Inappropriate ioctl for device */
3121 if (!afs_osi_suser(*acred))
3124 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3126 if (afs_pd_getStringPtr(ain, &realName) != 0)
3129 return afs_NewCellAlias(aliasName, realName);
3133 * VIOCGETCELL (27) - Get cell info
3137 * \param[in] ain The cell index of a specific cell
3138 * \param[out] aout list of servers in the cell
3140 * \retval EIO Error if the afs daemon hasn't started yet
3141 * \retval EDOM Error if there is no cell asked about
3143 * \post Lists the cell's server names and and addresses
3145 DECL_PIOCTL(PListCells)
3147 afs_int32 whichCell;
3148 struct cell *tcell = 0;
3152 AFS_STATCNT(PListCells);
3153 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3154 return EIO; /* Inappropriate ioctl for device */
3156 if (afs_pd_getInt(ain, &whichCell) != 0)
3159 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3165 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3166 if (tcell->cellHosts[i] == 0)
3168 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3171 for (;i < AFS_MAXCELLHOSTS; i++) {
3172 if (afs_pd_putInt(aout, 0) != 0)
3175 if (afs_pd_putString(aout, tcell->cellName) != 0)
3180 afs_PutCell(tcell, READ_LOCK);
3184 DECL_PIOCTL(PListAliases)
3186 afs_int32 whichAlias;
3187 struct cell_alias *tcalias = 0;
3190 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3191 return EIO; /* Inappropriate ioctl for device */
3193 if (afs_pd_getInt(ain, &whichAlias) != 0)
3196 tcalias = afs_GetCellAlias(whichAlias);
3197 if (tcalias == NULL)
3201 if (afs_pd_putString(aout, tcalias->alias) != 0)
3203 if (afs_pd_putString(aout, tcalias->cell) != 0)
3208 afs_PutCellAlias(tcalias);
3213 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3217 * \param[in] ain the name of the file in this dir to remove
3218 * \param[out] aout not in use
3221 * Error if some of the standard args aren't set
3223 * Error if the argument to remove is not a directory
3225 * Error if there is no cache to remove the mount point from or
3226 * if a vcache doesn't exist
3229 * Ensure that everything is OK before deleting the mountpoint.
3230 * If not, don't delete. Delete a mount point based on a file id.
3232 DECL_PIOCTL(PRemoveMount)
3237 struct sysname_info sysState;
3238 afs_size_t offset, len;
3239 struct afs_conn *tc;
3242 struct AFSFetchStatus OutDirStatus;
3243 struct VenusFid tfid;
3244 struct AFSVolSync tsync;
3245 struct rx_connection *rxconn;
3248 /* "ain" is the name of the file in this dir to remove */
3250 AFS_STATCNT(PRemoveMount);
3253 if (afs_pd_getStringPtr(ain, &name) != 0)
3256 code = afs_VerifyVCache(avc, areq);
3259 if (vType(avc) != VDIR)
3262 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3265 Check_AtSys(avc, name, &sysState, areq);
3266 ObtainReadLock(&tdc->lock);
3268 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3269 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3270 ReleaseReadLock(&tdc->lock);
3271 bufp = sysState.name;
3276 tfid.Cell = avc->f.fid.Cell;
3277 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3278 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3279 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3281 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3288 if (tvc->mvstat != 1) {
3294 ObtainWriteLock(&tvc->lock, 230);
3295 code = afs_HandleLink(tvc, areq);
3297 if (tvc->linkData) {
3298 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3303 ReleaseWriteLock(&tvc->lock);
3304 osi_dnlc_purgedp(tvc);
3310 ObtainWriteLock(&avc->lock, 231);
3311 osi_dnlc_remove(avc, bufp, tvc);
3313 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3315 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3318 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3319 &OutDirStatus, &tsync);
3324 } while (afs_Analyze
3325 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3326 SHARED_LOCK, NULL));
3331 ReleaseWriteLock(&avc->lock);
3335 /* we have the thing in the cache */
3336 ObtainWriteLock(&tdc->lock, 661);
3337 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3338 /* we can do it locally */
3339 code = afs_dir_Delete(tdc, bufp);
3341 ZapDCE(tdc); /* surprise error -- invalid value */
3345 ReleaseWriteLock(&tdc->lock);
3346 afs_PutDCache(tdc); /* drop ref count */
3348 avc->f.states &= ~CUnique; /* For the dfs xlator */
3349 ReleaseWriteLock(&avc->lock);
3352 if (sysState.allocked)
3353 osi_FreeLargeSpace(bufp);
3358 * VIOC_GETCELLSTATUS (35) - Get cell status info
3362 * \param[in] ain The cell you want status information on
3363 * \param[out] aout cell state (as a struct)
3365 * \retval EIO Error if the afs daemon hasn't started yet
3366 * \retval ENOENT Error if the cell doesn't exist
3368 * \post Returns the state of the cell as defined in a struct cell
3370 DECL_PIOCTL(PGetCellStatus)
3376 AFS_STATCNT(PGetCellStatus);
3377 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3378 return EIO; /* Inappropriate ioctl for device */
3380 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3383 tcell = afs_GetCellByName(cellName, READ_LOCK);
3386 temp = tcell->states;
3387 afs_PutCell(tcell, READ_LOCK);
3389 return afs_pd_putInt(aout, temp);
3393 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3398 * The cell you want to set information about, and the values you
3403 * \retval EIO Error if the afs daemon hasn't started yet
3404 * \retval EACCES Error if the user doesn't have super-user credentials
3407 * Set the state of the cell in a defined struct cell, based on
3408 * whether or not SetUID is allowed
3410 DECL_PIOCTL(PSetCellStatus)
3414 afs_int32 flags0, flags1;
3416 if (!afs_osi_suser(*acred))
3418 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3419 return EIO; /* Inappropriate ioctl for device */
3421 if (afs_pd_getInt(ain, &flags0) != 0)
3423 if (afs_pd_getInt(ain, &flags1) != 0)
3425 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3428 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3431 if (flags0 & CNoSUID)
3432 tcell->states |= CNoSUID;
3434 tcell->states &= ~CNoSUID;
3435 afs_PutCell(tcell, WRITE_LOCK);
3440 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3444 * \param[in] ain not in use (args in avc)
3445 * \param[out] aout not in use
3447 * \retval EINVAL Error if some of the standard args aren't set
3448 * \retval EIO Error if the afs daemon hasn't started yet
3451 * Flush all cached contents of a volume. Exactly what stays and what
3452 * goes depends on the platform.
3455 * Does not flush a file that a user has open and is using, because
3456 * it will be re-created on next write. Also purges the dnlc,
3457 * because things are screwed up.
3459 DECL_PIOCTL(PFlushVolumeData)
3465 afs_int32 cell, volume;
3466 struct afs_q *tq, *uq;
3467 #ifdef AFS_DARWIN80_ENV
3471 AFS_STATCNT(PFlushVolumeData);
3474 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3475 return EIO; /* Inappropriate ioctl for device */
3477 volume = avc->f.fid.Fid.Volume; /* who to zap */
3478 cell = avc->f.fid.Cell;
3481 * Clear stat'd flag from all vnodes from this volume; this will
3482 * invalidate all the vcaches associated with the volume.
3485 ObtainReadLock(&afs_xvcache);
3486 i = VCHashV(&avc->f.fid);
3487 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3490 if (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell) {
3491 if (tvc->f.states & CVInit) {
3492 ReleaseReadLock(&afs_xvcache);
3493 afs_osi_Sleep(&tvc->f.states);
3496 #ifdef AFS_DARWIN80_ENV
3497 if (tvc->f.states & CDeadVnode) {
3498 ReleaseReadLock(&afs_xvcache);
3499 afs_osi_Sleep(&tvc->f.states);
3505 if (vnode_ref(vp)) {
3514 ReleaseReadLock(&afs_xvcache);
3515 #ifdef AFS_BOZONLOCK_ENV
3516 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3518 ObtainWriteLock(&tvc->lock, 232);
3519 afs_ResetVCache(tvc, *acred, 1);
3520 ReleaseWriteLock(&tvc->lock);
3521 #ifdef AFS_BOZONLOCK_ENV
3522 afs_BozonUnlock(&tvc->pvnLock, tvc);
3524 #ifdef AFS_DARWIN80_ENV
3525 vnode_put(AFSTOV(tvc));
3527 ObtainReadLock(&afs_xvcache);
3529 /* our tvc ptr is still good until now */
3533 ReleaseReadLock(&afs_xvcache);
3536 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3537 for (i = 0; i < afs_cacheFiles; i++) {
3538 if (!(afs_indexFlags[i] & IFEverUsed))
3539 continue; /* never had any data */
3540 tdc = afs_GetValidDSlot(i);
3544 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3545 ReleaseReadLock(&tdc->tlock);
3546 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
3547 if (!(afs_indexFlags[i] & IFDataMod)) {
3548 /* if the file is modified, but has a ref cnt of only 1,
3549 * then someone probably has the file open and is writing
3550 * into it. Better to skip flushing such a file, it will be
3551 * brought back immediately on the next write anyway.
3553 * If we *must* flush, then this code has to be rearranged
3554 * to call afs_storeAllSegments() first */
3555 afs_FlushDCache(tdc);
3559 ReleaseReadLock(&tdc->tlock);
3561 afs_PutDCache(tdc); /* bumped by getdslot */
3563 ReleaseWriteLock(&afs_xdcache);
3565 ObtainReadLock(&afs_xvolume);
3566 for (i = 0; i < NVOLS; i++) {
3567 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3568 if (tv->volume == volume) {
3569 afs_ResetVolumeInfo(tv);
3574 ReleaseReadLock(&afs_xvolume);
3576 /* probably, a user is doing this, probably, because things are screwed up.
3577 * maybe it's the dnlc's fault? */
3584 * VIOCGETVCXSTATUS (41) - gets vnode x status
3589 * not in use (avc used)
3591 * vcxstat: the file id, the data version, any lock, the parent vnode,
3592 * the parent unique id, the trunc position, the callback, cbExpires,
3593 * what access is being made, what files are open,
3594 * any users executing/writing, the flock count, the states,
3598 * Error if some of the initial default arguments aren't set
3600 * Error if access to check the mode bits is denied
3603 * gets stats for the vnode, a struct listed in vcxstat
3605 DECL_PIOCTL(PGetVnodeXStatus)
3608 struct vcxstat stat;
3611 /* AFS_STATCNT(PGetVnodeXStatus); */
3614 code = afs_VerifyVCache(avc, areq);
3617 if (vType(avc) == VDIR)
3618 mode = PRSFS_LOOKUP;
3621 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3624 memset(&stat, 0, sizeof(struct vcxstat));
3625 stat.fid = avc->f.fid;
3626 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3627 stat.lock = avc->lock;
3628 stat.parentVnode = avc->f.parent.vnode;
3629 stat.parentUnique = avc->f.parent.unique;
3630 hset(stat.flushDV, avc->flushDV);
3631 hset(stat.mapDV, avc->mapDV);
3632 stat.truncPos = avc->f.truncPos;
3633 { /* just grab the first two - won't break anything... */
3634 struct axscache *ac;
3636 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3637 stat.randomUid[i] = ac->uid;
3638 stat.randomAccess[i] = ac->axess;
3641 stat.callback = afs_data_pointer_to_int32(avc->callback);
3642 stat.cbExpires = avc->cbExpires;
3643 stat.anyAccess = avc->f.anyAccess;
3644 stat.opens = avc->opens;
3645 stat.execsOrWriters = avc->execsOrWriters;
3646 stat.flockCount = avc->flockCount;
3647 stat.mvstat = avc->mvstat;
3648 stat.states = avc->f.states;
3649 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3653 DECL_PIOCTL(PGetVnodeXStatus2)
3656 struct vcxstat2 stat;
3661 code = afs_VerifyVCache(avc, areq);
3664 if (vType(avc) == VDIR)
3665 mode = PRSFS_LOOKUP;
3668 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3671 memset(&stat, 0, sizeof(struct vcxstat2));
3673 stat.cbExpires = avc->cbExpires;
3674 stat.anyAccess = avc->f.anyAccess;
3675 stat.mvstat = avc->mvstat;
3676 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3678 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3683 * VIOC_AFS_SYSNAME (38) - Change @sys value
3687 * \param[in] ain new value for @sys
3688 * \param[out] aout count, entry, list (debug values?)
3691 * Error if afsd isn't running, the new sysname is too large,
3692 * the new sysname causes issues (starts with a . or ..),
3693 * there is no PAG set in the credentials, or the user of a PAG
3696 * Error if the user doesn't have super-user credentials
3699 * Set the value of @sys if these things work: if the input isn't
3700 * too long or if input doesn't start with . or ..
3703 * We require root for local sysname changes, but not for remote
3704 * (since we don't really believe remote uids anyway)
3705 * outname[] shouldn't really be needed- this is left as an
3706 * exercise for the reader.
3708 DECL_PIOCTL(PSetSysName)
3710 char *inname = NULL;
3711 char outname[MAXSYSNAME];
3712 afs_int32 setsysname;
3714 struct afs_exporter *exporter;
3715 struct unixuser *au;
3716 afs_int32 pag, error;
3717 int t, count, num = 0, allpags = 0;
3719 struct afs_pdata validate;
3721 AFS_STATCNT(PSetSysName);
3722 if (!afs_globalVFS) {
3723 /* Afsd is NOT running; disable it */
3724 #if defined(KERNEL_HAVE_UERROR)
3725 return (setuerror(EINVAL), EINVAL);
3730 if (afs_pd_getInt(ain, &setsysname) != 0)
3732 if (setsysname & 0x8000) {
3734 setsysname &= ~0x8000;
3739 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3742 for (count = 0; count < setsysname; count++) {
3743 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3746 if (t >= MAXSYSNAME || t <= 0)
3748 /* check for names that can shoot us in the foot */
3749 if (inname[0] == '.' && (inname[1] == 0
3750 || (inname[1] == '.' && inname[2] == 0)))
3753 /* args ok, so go back to the beginning of that section */
3755 if (afs_pd_getStringPtr(ain, &inname) != 0)
3759 if (afs_cr_gid(*acred) == RMTUSER_REQ ||
3760 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV) { /* Handles all exporters */
3761 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3764 pag = PagInCred(*acred);
3766 return EINVAL; /* Better than panicing */
3768 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3769 return EINVAL; /* Better than panicing */
3771 if (!(exporter = au->exporter)) {
3772 afs_PutUser(au, READ_LOCK);
3773 return EINVAL; /* Better than panicing */
3775 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3778 if (error == ENODEV)
3779 foundname = 0; /* sysname not set yet! */
3781 afs_PutUser(au, READ_LOCK);
3786 strcpy(outname, sysnamelist[0]);
3788 afs_PutUser(au, READ_LOCK);
3792 /* Not xlating, so local case */
3794 osi_Panic("PSetSysName: !afs_sysname\n");
3795 if (!setsysname) { /* user just wants the info */
3796 strcpy(outname, afs_sysname);
3797 foundname = afs_sysnamecount;
3798 sysnamelist = afs_sysnamelist;
3799 } else { /* Local guy; only root can change sysname */
3800 if (!afs_osi_suser(*acred))
3803 /* allpags makes no sense for local use */
3807 /* clear @sys entries from the dnlc, once afs_lookup can
3808 * do lookups of @sys entries and thinks it can trust them */
3809 /* privs ok, store the entry, ... */
3811 if (strlen(inname) >= MAXSYSNAME-1)
3813 strcpy(afs_sysname, inname);
3815 if (setsysname > 1) { /* ... or list */
3816 for (count = 1; count < setsysname; ++count) {
3817 if (!afs_sysnamelist[count])
3819 ("PSetSysName: no afs_sysnamelist entry to write\n");
3820 if (afs_pd_getString(ain, afs_sysnamelist[count],
3825 afs_sysnamecount = setsysname;
3830 if (afs_pd_putInt(aout, foundname) != 0)
3833 if (afs_pd_putString(aout, outname) != 0)
3835 for (count = 1; count < foundname; ++count) { /* ... or list. */
3836 if (!sysnamelist[count])
3838 ("PSetSysName: no afs_sysnamelist entry to read\n");
3839 t = strlen(sysnamelist[count]);
3840 if (t >= MAXSYSNAME)
3841 osi_Panic("PSetSysName: sysname entry garbled\n");
3842 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3850 /* sequential search through the list of touched cells is not a good
3851 * long-term solution here. For small n, though, it should be just
3852 * fine. Should consider special-casing the local cell for large n.
3853 * Likewise for PSetSPrefs.
3855 * s - number of ids in array l[] -- NOT index of last id
3856 * l - array of cell ids which have volumes that need to be sorted
3857 * vlonly - sort vl servers or file servers?
3860 ReSortCells_cb(struct cell *cell, void *arg)
3862 afs_int32 *p = (afs_int32 *) arg;
3863 afs_int32 *l = p + 1;
3866 for (i = 0; i < s; i++) {
3867 if (l[i] == cell->cellNum) {
3868 ObtainWriteLock(&cell->lock, 690);
3869 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3870 ReleaseWriteLock(&cell->lock);
3878 ReSortCells(int s, afs_int32 * l, int vlonly)
3886 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3887 osi_Assert(p != NULL);
3889 memcpy(p + 1, l, s * sizeof(afs_int32));
3890 afs_TraverseCells(&ReSortCells_cb, p);
3891 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3895 ObtainReadLock(&afs_xvolume);
3896 for (i = 0; i < NVOLS; i++) {
3897 for (j = afs_volumes[i]; j; j = j->next) {
3898 for (k = 0; k < s; k++)
3899 if (j->cell == l[k]) {
3900 ObtainWriteLock(&j->lock, 233);
3901 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3902 ReleaseWriteLock(&j->lock);
3907 ReleaseReadLock(&afs_xvolume);
3911 static int debugsetsp = 0;
3913 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3916 int i, j, k, matches, touchedSize;
3917 struct server *srvr = NULL;
3918 afs_int32 touched[34];
3922 for (k = 0; k < num; sp++, k++) {
3924 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3927 ObtainReadLock(&afs_xserver);
3929 i = SHash(sp->host.s_addr);
3930 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3931 if (sa->sa_ip == sp->host.s_addr) {
3933 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3934 || (sa->sa_portal == AFS_FSPORT);
3935 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3942 if (sa && matches) { /* found one! */
3944 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3946 sa->sa_iprank = sp->rank + afs_randomMod15();
3947 afs_SortOneServer(sa->server);
3950 /* if we don't know yet what cell it's in, this is moot */
3951 for (j = touchedSize - 1;
3952 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
3953 /* is it in our list of touched cells ? */ ;
3954 if (j < 0) { /* no, it's not */
3955 touched[touchedSize++] = srvr->cell->cellNum;
3956 if (touchedSize >= 32) { /* watch for ovrflow */
3957 ReleaseReadLock(&afs_xserver);
3958 ReSortCells(touchedSize, touched, vlonly);
3960 ObtainReadLock(&afs_xserver);
3966 ReleaseReadLock(&afs_xserver);
3967 /* if we didn't find one, start to create one. */
3968 /* Note that it doesn't have a cell yet... */
3970 afs_uint32 temp = sp->host.s_addr;
3972 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
3973 WRITE_LOCK, (afsUUID *) 0, 0, NULL);
3974 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
3975 afs_PutServer(srvr, WRITE_LOCK);
3977 } /* for all cited preferences */
3979 ReSortCells(touchedSize, touched, vlonly);
3984 * VIOC_SETPREFS (46) - Set server ranks
3986 * \param[in] ain the sprefs value you want the sprefs to be set to
3987 * \param[out] aout not in use
3990 * Error if the afs daemon hasn't started yet
3992 * Error if the user doesn't have super-user credentials
3994 * Error if the struct setsprefs is too large or if it multiplied
3995 * by the number of servers is too large
3997 * \post set the sprefs using the afs_setsprefs() function
3999 DECL_PIOCTL(PSetSPrefs)
4001 struct setspref *ssp;
4005 AFS_STATCNT(PSetSPrefs);
4007 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4008 return EIO; /* Inappropriate ioctl for device */
4010 if (!afs_osi_suser(*acred))
4013 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4014 * of arrays. But, i'm not quite brave enough to change it yet. */
4016 ainSize = ain->remaining;
4018 if (ainSize < sizeof(struct setspref))
4021 ssp = (struct setspref *)ainPtr;
4022 if (ainSize < (sizeof(struct setspref)
4023 + sizeof(struct spref) * (ssp->num_servers-1)))
4026 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4027 (ssp->flags & DBservers));
4032 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4034 * \param[in] ain the server preferences to be set
4035 * \param[out] aout not in use
4037 * \retval EIO Error if the afs daemon hasn't started yet
4038 * \retval EACCES Error if the user doesn't have super-user credentials
4040 * \post set the server preferences, calling a function
4042 * \notes this may only be performed by the local root user.
4044 DECL_PIOCTL(PSetSPrefs33)
4046 AFS_STATCNT(PSetSPrefs);
4047 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4048 return EIO; /* Inappropriate ioctl for device */
4051 if (!afs_osi_suser(*acred))
4054 afs_setsprefs((struct spref *)afs_pd_where(ain),
4055 afs_pd_remaining(ain) / sizeof(struct spref),
4061 * VIOC_GETSPREFS (43) - Get server ranks
4065 * \param[in] ain the server preferences to get
4066 * \param[out] aout the server preferences information
4068 * \retval EIO Error if the afs daemon hasn't started yet
4069 * \retval ENOENT Error if the sprefrequest is too large
4071 * \post Get the sprefs
4074 * in the hash table of server structs, all servers with the same
4075 * IP address; will be on the same overflow chain; This could be
4076 * sped slightly in some circumstances by having it cache the
4077 * immediately previous slot in the hash table and some
4078 * supporting information; Only reports file servers now.
4080 DECL_PIOCTL(PGetSPrefs)
4082 struct sprefrequest spin; /* input */
4083 struct sprefinfo *spout; /* output */
4084 struct spref *srvout; /* one output component */
4085 int i, j; /* counters for hash table traversal */
4086 struct server *srvr; /* one of CM's server structs */
4088 int vlonly; /* just return vlservers ? */
4091 AFS_STATCNT(PGetSPrefs);
4092 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4093 return EIO; /* Inappropriate ioctl for device */
4095 /* Work out from the size whether we've got a new, or old, style pioctl */
4096 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4097 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4102 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4104 vlonly = (spin.flags & DBservers);
4107 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4108 * quite brave enough to tackle it yet ...
4111 /* struct sprefinfo includes 1 server struct... that size gets added
4112 * in during the loop that follows.
4114 spout = afs_pd_inline(aout,
4115 sizeof(struct sprefinfo) - sizeof(struct spref));
4116 spout->next_offset = spin.offset;
4117 spout->num_servers = 0;
4118 srvout = spout->servers;
4120 ObtainReadLock(&afs_xserver);
4121 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4122 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4123 if (spin.offset > (unsigned short)i) {
4124 continue; /* catch up to where we left off */
4126 spout->next_offset++;
4129 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4130 || (sa->sa_portal == AFS_FSPORT);
4132 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4133 /* only report ranks for vl servers */
4137 /* Check we've actually got the space we're about to use */
4138 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4139 ReleaseReadLock(&afs_xserver); /* no more room! */
4143 srvout->host.s_addr = sa->sa_ip;
4144 srvout->rank = sa->sa_iprank;
4145 spout->num_servers++;
4149 ReleaseReadLock(&afs_xserver);
4151 spout->next_offset = 0; /* start over from the beginning next time */
4156 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4157 int afs_NFSRootOnly = 1;
4159 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4164 * an integer containing the desired exportee flags
4166 * an integer containing the current exporter flags
4168 * \retval ENODEV Error if the exporter doesn't exist
4169 * \retval EACCES Error if the user doesn't have super-user credentials
4172 * Changes the state of various values to reflect the change
4173 * of the export values between nfs and afs.
4175 * \notes Legacy code obtained from IBM.
4177 DECL_PIOCTL(PExportAfs)
4179 afs_int32 export, newint = 0;
4180 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4181 afs_int32 rempags = 0, pagcb = 0;
4182 struct afs_exporter *exporter;
4184 AFS_STATCNT(PExportAfs);
4185 if (afs_pd_getInt(ain, &handleValue) != 0)
4187 type = handleValue >> 24;
4192 exporter = exporter_find(type);
4194 export = handleValue & 3;
4195 changestate = handleValue & 0xfff;
4196 smounts = (handleValue >> 2) & 3;
4197 pwsync = (handleValue >> 4) & 3;
4198 convmode = (handleValue >> 6) & 3;
4199 rempags = (handleValue >> 8) & 3;
4200 pagcb = (handleValue >> 10) & 3;
4202 changestate = (handleValue >> 16) & 0x1;
4203 convmode = (handleValue >> 16) & 0x2;
4204 pwsync = (handleValue >> 16) & 0x4;
4205 smounts = (handleValue >> 16) & 0x8;
4206 export = handleValue & 0xff;
4209 /* Failed finding desired exporter; */
4213 handleValue = exporter->exp_states;
4214 if (afs_pd_putInt(aout, handleValue) != 0)
4217 if (!afs_osi_suser(*acred))
4218 return EACCES; /* Only superuser can do this */
4222 exporter->exp_states |= EXP_EXPORTED;
4224 exporter->exp_states &= ~EXP_EXPORTED;
4228 exporter->exp_states |= EXP_UNIXMODE;
4230 exporter->exp_states &= ~EXP_UNIXMODE;
4234 exporter->exp_states |= EXP_PWSYNC;
4236 exporter->exp_states &= ~EXP_PWSYNC;
4240 afs_NFSRootOnly = 0;
4241 exporter->exp_states |= EXP_SUBMOUNTS;
4243 afs_NFSRootOnly = 1;
4244 exporter->exp_states &= ~EXP_SUBMOUNTS;
4249 exporter->exp_states |= EXP_CLIPAGS;
4251 exporter->exp_states &= ~EXP_CLIPAGS;
4255 exporter->exp_states |= EXP_CALLBACK;
4257 exporter->exp_states &= ~EXP_CALLBACK;
4259 handleValue = exporter->exp_states;
4260 if (afs_pd_putInt(aout, handleValue) != 0)
4264 exporter->exp_states |= EXP_EXPORTED;
4266 exporter->exp_states &= ~EXP_EXPORTED;
4268 exporter->exp_states |= EXP_UNIXMODE;
4270 exporter->exp_states &= ~EXP_UNIXMODE;
4272 exporter->exp_states |= EXP_PWSYNC;
4274 exporter->exp_states &= ~EXP_PWSYNC;
4276 afs_NFSRootOnly = 0;
4277 exporter->exp_states |= EXP_SUBMOUNTS;
4279 afs_NFSRootOnly = 1;
4280 exporter->exp_states &= ~EXP_SUBMOUNTS;
4289 * VIOC_GAG (44) - Silence Cache Manager
4293 * \param[in] ain the flags to either gag or de-gag the cache manager
4294 * \param[out] aout not in use
4296 * \retval EACCES Error if the user doesn't have super-user credentials
4298 * \post set the gag flags, then show these flags
4302 struct gaginfo *gagflags;
4304 if (!afs_osi_suser(*acred))
4307 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4308 if (gagflags == NULL)
4310 afs_showflags = gagflags->showflags;
4316 * VIOC_TWIDDLE (45) - Adjust RX knobs
4320 * \param[in] ain the previous settings of the 'knobs'
4321 * \param[out] aout not in use
4323 * \retval EACCES Error if the user doesn't have super-user credentials
4325 * \post build out the struct rxp, from a struct rx
4327 DECL_PIOCTL(PTwiddleRx)
4329 struct rxparams *rxp;
4331 if (!afs_osi_suser(*acred))
4334 rxp = afs_pd_inline(ain, sizeof(*rxp));
4338 if (rxp->rx_initReceiveWindow)
4339 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4340 if (rxp->rx_maxReceiveWindow)
4341 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4342 if (rxp->rx_initSendWindow)
4343 rx_initSendWindow = rxp->rx_initSendWindow;
4344 if (rxp->rx_maxSendWindow)
4345 rx_maxSendWindow = rxp->rx_maxSendWindow;
4346 if (rxp->rxi_nSendFrags)
4347 rxi_nSendFrags = rxp->rxi_nSendFrags;
4348 if (rxp->rxi_nRecvFrags)
4349 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4350 if (rxp->rxi_OrphanFragSize)
4351 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4352 if (rxp->rx_maxReceiveSize) {
4353 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4354 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4356 if (rxp->rx_MyMaxSendSize)
4357 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4363 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4367 * \param[in] ain not in use
4368 * \param[out] aout initial cache manager params
4371 * Error if the initial parameters are bigger than some PIGGYSIZE
4373 * \post return the initial cache manager parameters
4375 DECL_PIOCTL(PGetInitParams)
4377 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4380 return afs_pd_putBytes(aout, &cm_initParams,
4381 sizeof(struct cm_initparams));
4384 #ifdef AFS_SGI65_ENV
4385 /* They took crget() from us, so fake it. */
4390 cr = crdup(get_current_cred());
4391 memset(cr, 0, sizeof(cred_t));
4392 #if CELL || CELL_PREPARE
4400 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4404 * \param[in] ain not in use
4405 * \param[out] aout value of cryptall
4407 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4409 DECL_PIOCTL(PGetRxkcrypt)
4411 return afs_pd_putInt(aout, cryptall);
4415 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4419 * \param[in] ain the argument whether or not things should be encrypted
4420 * \param[out] aout not in use
4423 * Error if the user doesn't have super-user credentials
4425 * Error if the input is too big, or if the input is outside the
4426 * bounds of what it can be set to
4428 * \post set whether or not things should be encrypted
4431 * may need to be modified at a later date to take into account
4432 * other values for cryptall (beyond true or false)
4434 DECL_PIOCTL(PSetRxkcrypt)
4438 if (!afs_osi_suser(*acred))
4440 if (afs_pd_getInt(ain, &tmpval) != 0)
4442 /* if new mappings added later this will need to be changed */
4443 if (tmpval != 0 && tmpval != 1)
4449 #ifdef AFS_NEED_CLIENTCONTEXT
4451 * Create new credentials to correspond to a remote user with given
4452 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4453 * provide pioctl (and other) services to foreign clients (i.e. nfs
4454 * clients) by using this call to `become' the client.
4457 #define PIOCTL_HEADER 6
4459 HandleClientContext(struct afs_ioctl *ablob, int *com,
4460 afs_ucred_t **acred, afs_ucred_t *credp)
4463 afs_uint32 hostaddr;
4464 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4465 struct afs_exporter *exporter, *outexporter;
4466 afs_ucred_t *newcred;
4467 struct unixuser *au;
4468 afs_uint32 comp = *com & 0xff00;
4470 #if defined(AFS_SUN510_ENV)
4474 #if defined(AFS_SGIMP_ENV)
4475 osi_Assert(ISAFS_GLOCK());
4477 AFS_STATCNT(HandleClientContext);
4478 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4479 /* Must at least include the PIOCTL_HEADER header words
4480 * required by the protocol */
4481 return EINVAL; /* Too small to be good */
4483 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4484 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4486 osi_FreeLargeSpace(inData);
4490 /* Extract information for remote user */
4491 hostaddr = *((afs_uint32 *) ain);
4492 ain += sizeof(hostaddr);
4493 uid = *((afs_uint32 *) ain);
4495 g0 = *((afs_uint32 *) ain);
4497 g1 = *((afs_uint32 *) ain);
4499 *com = *((afs_uint32 *) ain);
4500 ain += sizeof(afs_int32);
4501 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4504 * Of course, one must be root for most of these functions, but
4505 * we'll allow (for knfs) you to set things if the pag is 0 and
4506 * you're setting tokens or unlogging.
4509 if (!afs_osi_suser(credp)) {
4510 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4511 /* Since SGI's suser() returns explicit failure after the call.. */
4514 /* check for acceptable opcodes for normal folks, which are, so far,
4515 * get/set tokens, sysname, and unlog.
4517 if (i != 9 && i != 3 && i != 38 && i != 8) {
4518 osi_FreeLargeSpace(inData);
4523 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4524 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4525 osi_FreeLargeSpace(inData);
4528 * We map uid 0 to nobody to match the mapping that the nfs
4529 * server does and to ensure that the suser() calls in the afs
4530 * code fails for remote client roots.
4532 uid = afs_nobody; /* NFS_NOBODY == -2 */
4536 #ifdef AFS_AIX41_ENV
4539 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4540 #ifdef AFS_AIX51_ENV
4541 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4542 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4543 #elif defined(AFS_LINUX26_ENV)
4544 # ifdef AFS_LINUX26_ONEGROUP_ENV
4545 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4546 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4547 h = ((g0-0x3f00) >> 14);
4548 h = ((g1-0x3f00) >> 14) + h + h + h;
4549 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4551 afs_set_cr_group_info(newcred, groups_alloc(2));
4552 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4553 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4555 #elif defined(AFS_SUN510_ENV)
4558 crsetgroups(newcred, 2, gids);
4560 newcred->cr_groups[0] = g0;
4561 newcred->cr_groups[1] = g1;
4564 newcred->cr_ngrps = 2;
4565 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4566 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4567 newcred->cr_ngroups = 2;
4569 for (i = 2; i < NGROUPS; i++)
4570 newcred->cr_groups[i] = NOGROUP;
4573 if (!(exporter = exporter_find(exporter_type))) {
4574 /* Exporter wasn't initialized or an invalid exporter type */
4578 if (exporter->exp_states & EXP_PWSYNC) {
4579 if (uid != afs_cr_uid(credp)) {
4581 return ENOEXEC; /* XXX Find a better errno XXX */
4584 afs_set_cr_uid(newcred, uid); /* Only temporary */
4585 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4586 /* The client's pag is the only unique identifier for it */
4587 afs_set_cr_uid(newcred, pag);
4589 if (!code && *com == PSETPAG) {
4590 /* Special case for 'setpag' */
4591 afs_uint32 pagvalue = genpag();
4593 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4595 * Note that we leave the 'outexporter' struct held so it won't
4598 au->exporter = outexporter;
4599 if (ablob->out_size >= 4) {
4600 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4603 afs_PutUser(au, WRITE_LOCK);
4606 return PSETPAG; /* Special return for setpag */
4608 EXP_RELE(outexporter);
4611 *com = (*com) | comp;
4614 #endif /* AFS_NEED_CLIENTCONTEXT */
4618 * VIOC_GETCPREFS (50) - Get client interface
4622 * \param[in] ain sprefrequest input
4623 * \param[out] aout spref information
4625 * \retval EIO Error if the afs daemon hasn't started yet
4626 * \retval EINVAL Error if some of the standard args aren't set
4629 * get all interface addresses and other information of the client
4632 DECL_PIOCTL(PGetCPrefs)
4634 struct sprefrequest *spin; /* input */
4635 struct sprefinfo *spout; /* output */
4636 struct spref *srvout; /* one output component */
4640 AFS_STATCNT(PGetCPrefs);
4641 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4642 return EIO; /* Inappropriate ioctl for device */
4644 spin = afs_pd_inline(ain, sizeof(*spin));
4648 /* Output spout relies on writing past the end of arrays. It's horrible,
4649 * but I'm not quite brave enough to tackle it yet */
4650 spout = (struct sprefinfo *)aout->ptr;
4652 maxNumber = spin->num_servers; /* max addrs this time */
4653 srvout = spout->servers;
4655 ObtainReadLock(&afs_xinterface);
4657 /* copy out the client interface information from the
4658 * kernel data structure "interface" to the output buffer
4660 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4661 && (j < maxNumber); i++, j++, srvout++)
4662 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4664 spout->num_servers = j;
4665 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4667 if (i >= afs_cb_interface.numberOfInterfaces)
4668 spout->next_offset = 0; /* start from beginning again */
4670 spout->next_offset = spin->offset + j;
4672 ReleaseReadLock(&afs_xinterface);
4677 * VIOC_SETCPREFS (51) - Set client interface
4681 * \param[in] ain the interfaces you want set
4682 * \param[out] aout not in use
4684 * \retval EIO Error if the afs daemon hasn't started yet
4685 * \retval EINVAL Error if the input is too large for the struct
4686 * \retval ENOMEM Error if there are too many servers
4688 * \post set the callbak interfaces addresses to those of the hosts
4690 DECL_PIOCTL(PSetCPrefs)
4694 struct setspref *sin;
4697 AFS_STATCNT(PSetCPrefs);
4698 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4699 return EIO; /* Inappropriate ioctl for device */
4701 /* Yuck. Input to this function relies on reading past the end of
4702 * structures. Bodge it for now.
4705 ainSize = ain->remaining;
4707 sin = (struct setspref *)ainPtr;
4709 if (ainSize < sizeof(struct setspref))
4711 #if 0 /* num_servers is unsigned */
4712 if (sin->num_servers < 0)
4715 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4718 ObtainWriteLock(&afs_xinterface, 412);
4719 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4720 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4721 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4723 ReleaseWriteLock(&afs_xinterface);
4728 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4733 * the last part of a path to a mount point, which tells us what to flush
4738 * Error if some of the initial arguments aren't set
4740 * Error if the initial argument for the mount point isn't a directory
4742 * Error if the dcache entry isn't set
4745 * remove all of the mount data from the dcache regarding a
4746 * certain mount point
4748 DECL_PIOCTL(PFlushMount)
4753 struct VenusFid tfid;
4756 struct sysname_info sysState;
4757 afs_size_t offset, len;
4759 AFS_STATCNT(PFlushMount);
4763 if (afs_pd_getStringPtr(ain, &mount) != 0)
4766 code = afs_VerifyVCache(avc, areq);
4769 if (vType(avc) != VDIR) {
4772 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4775 Check_AtSys(avc, mount, &sysState, areq);
4776 ObtainReadLock(&tdc->lock);
4778 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4779 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4780 ReleaseReadLock(&tdc->lock);
4781 afs_PutDCache(tdc); /* we're done with the data */
4782 bufp = sysState.name;
4786 tfid.Cell = avc->f.fid.Cell;
4787 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4788 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4789 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4791 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4797 if (tvc->mvstat != 1) {
4802 #ifdef AFS_BOZONLOCK_ENV
4803 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4805 ObtainWriteLock(&tvc->lock, 649);
4806 ObtainWriteLock(&afs_xcbhash, 650);
4807 afs_DequeueCallback(tvc);
4808 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4809 ReleaseWriteLock(&afs_xcbhash);
4810 /* now find the disk cache entries */
4811 afs_TryToSmush(tvc, *acred, 1);
4812 osi_dnlc_purgedp(tvc);
4813 if (tvc->linkData && !(tvc->f.states & CCore)) {
4814 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4815 tvc->linkData = NULL;
4817 ReleaseWriteLock(&tvc->lock);
4818 #ifdef AFS_BOZONLOCK_ENV
4819 afs_BozonUnlock(&tvc->pvnLock, tvc);
4823 if (sysState.allocked)
4824 osi_FreeLargeSpace(bufp);
4829 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4833 * \param[in] ain the flags that control which stats to use
4834 * \param[out] aout not in use
4836 * \retval EACCES Error if the user doesn't have super-user credentials
4837 * \retval EINVAL Error if the flag input is too long
4840 * either enable process RPCStats, disable process RPCStats,
4841 * or clear the process RPCStats
4843 DECL_PIOCTL(PRxStatProc)
4847 if (!afs_osi_suser(*acred))
4850 if (afs_pd_getInt(ain, &flags) != 0)
4853 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4856 if (flags & AFSCALL_RXSTATS_ENABLE) {
4857 rx_enableProcessRPCStats();
4859 if (flags & AFSCALL_RXSTATS_DISABLE) {
4860 rx_disableProcessRPCStats();
4862 if (flags & AFSCALL_RXSTATS_CLEAR) {
4863 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4870 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4874 * \param[in] ain the flags that control which statistics to use
4875 * \param[out] aout not in use
4877 * \retval EACCES Error if the user doesn't have super-user credentials
4878 * \retval EINVAL Error if the flag input is too long
4881 * either enable peer RPCStatws, disable peer RPCStats,
4882 * or clear the peer RPCStats
4884 DECL_PIOCTL(PRxStatPeer)
4888 if (!afs_osi_suser(*acred))
4891 if (afs_pd_getInt(ain, &flags) != 0)
4894 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4897 if (flags & AFSCALL_RXSTATS_ENABLE) {
4898 rx_enablePeerRPCStats();
4900 if (flags & AFSCALL_RXSTATS_DISABLE) {
4901 rx_disablePeerRPCStats();
4903 if (flags & AFSCALL_RXSTATS_CLEAR) {
4904 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4909 DECL_PIOCTL(PPrefetchFromTape)
4913 struct afs_conn *tc;
4914 struct rx_call *tcall;
4915 struct AFSVolSync tsync;
4916 struct AFSFetchStatus OutStatus;
4917 struct AFSCallBack CallBack;
4918 struct VenusFid tfid;
4921 struct rx_connection *rxconn;
4923 AFS_STATCNT(PPrefetchFromTape);
4927 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4929 Fid = &avc->f.fid.Fid;
4931 tfid.Cell = avc->f.fid.Cell;
4932 tfid.Fid.Volume = Fid->Volume;
4933 tfid.Fid.Vnode = Fid->Vnode;
4934 tfid.Fid.Unique = Fid->Unique;
4936 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4938 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4939 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4942 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4943 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4946 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
4950 tcall = rx_NewCall(rxconn);
4952 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4955 rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
4957 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
4959 code = rx_EndCall(tcall, code);
4963 } while (afs_Analyze
4964 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
4965 SHARED_LOCK, NULL));
4966 /* This call is done only to have the callback things handled correctly */
4967 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
4973 return afs_pd_putInt(aout, outval);
4979 struct afs_conn *tc;
4981 struct FsCmdInputs *Inputs;
4982 struct FsCmdOutputs *Outputs;
4983 struct VenusFid tfid;
4985 struct rx_connection *rxconn;
4990 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
4994 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
4995 if (Outputs == NULL)
5000 Fid = &avc->f.fid.Fid;
5002 tfid.Cell = avc->f.fid.Cell;
5003 tfid.Fid.Volume = Fid->Volume;
5004 tfid.Fid.Vnode = Fid->Vnode;
5005 tfid.Fid.Unique = Fid->Unique;
5007 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5008 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5009 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5013 if (Inputs->command) {
5015 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5019 RXAFS_FsCmd(rxconn, Fid, Inputs,
5020 (struct FsCmdOutputs *)aout);
5024 } while (afs_Analyze
5025 (tc, rxconn, code, &tvc->f.fid, areq,
5026 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5027 /* This call is done to have the callback things handled correctly */
5028 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5029 } else { /* just a status request, return also link data */
5031 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5032 Outputs->chars[0] = 0;
5033 if (vType(tvc) == VLNK) {
5034 ObtainWriteLock(&tvc->lock, 555);
5035 if (afs_HandleLink(tvc, areq) == 0)
5036 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5037 ReleaseWriteLock(&tvc->lock);
5046 DECL_PIOCTL(PNewUuid)
5048 /*AFS_STATCNT(PNewUuid); */
5049 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5050 return EIO; /* Inappropriate ioctl for device */
5052 if (!afs_osi_suser(*acred))
5055 ObtainWriteLock(&afs_xinterface, 555);
5056 afs_uuid_create(&afs_cb_interface.uuid);
5057 ReleaseWriteLock(&afs_xinterface);
5058 ForceAllNewConnections();
5062 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5064 DECL_PIOCTL(PSetCachingThreshold)
5066 afs_int32 getting = 1;
5067 afs_int32 setting = 1;
5068 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5070 if (afs_pd_getInt(ain, &threshold) != 0)
5076 if (setting == 0 && getting == 0)
5080 * If setting, set first, and return the value now in effect
5083 if (!afs_osi_suser(*acred))
5085 cache_bypass_threshold = threshold;
5086 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5087 /* TODO: move to separate pioctl, or enhance pioctl */
5088 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5091 /* Return the current size threshold */
5093 return afs_pd_putInt(aout, cache_bypass_threshold);
5098 #endif /* defined(AFS_CACHE_BYPASS) */
5100 DECL_PIOCTL(PCallBackAddr)
5103 afs_uint32 addr, code;
5107 struct afs_conn *tc;
5109 struct unixuser *tu;
5110 struct srvAddr **addrs;
5111 struct rx_connection *rxconn;
5113 /*AFS_STATCNT(PCallBackAddr); */
5114 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5115 return EIO; /* Inappropriate ioctl for device */
5117 if (!afs_osi_suser(acred))
5120 if (afs_pd_getInt(ain, &addr) != 0)
5123 ObtainReadLock(&afs_xinterface);
5124 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5125 if (afs_cb_interface.addr_in[i] == addr)
5129 ReleaseWriteLock(&afs_xinterface);
5131 if (afs_cb_interface.addr_in[i] != addr)
5134 ObtainReadLock(&afs_xserver); /* Necessary? */
5135 ObtainReadLock(&afs_xsrvAddr);
5138 for (i = 0; i < NSERVERS; i++) {
5139 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5144 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5145 osi_Assert(addrs != NULL);
5147 for (i = 0; i < NSERVERS; i++) {
5148 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5149 if (j >= srvAddrCount)
5155 ReleaseReadLock(&afs_xsrvAddr);
5156 ReleaseReadLock(&afs_xserver);
5158 for (i = 0; i < j; i++) {
5164 /* vlserver has no callback conn */
5165 if (sa->sa_portal == AFS_VLPORT) {
5169 if (!ts->cell) /* not really an active server, anyway, it must */
5170 continue; /* have just been added by setsprefs */
5172 /* get a connection, even if host is down; bumps conn ref count */
5173 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5174 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5175 1 /*force */ , 1 /*create */ , SHARED_LOCK, 0, &rxconn);
5176 afs_PutUser(tu, SHARED_LOCK);
5180 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5181 if (sa->sa_flags & SRVADDR_ISDOWN) {
5182 rx_SetConnDeadTime(rxconn, 3);
5184 #ifdef RX_ENABLE_LOCKS
5186 #endif /* RX_ENABLE_LOCKS */
5187 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5188 #ifdef RX_ENABLE_LOCKS
5190 #endif /* RX_ENABLE_LOCKS */
5192 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5193 } /* Outer loop over addrs */
5194 #endif /* UKERNEL */
5198 DECL_PIOCTL(PDiscon)
5200 static afs_int32 mode = 1; /* Start up in 'off' */
5201 afs_int32 force = 0;
5204 struct vrequest lreq;
5206 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5207 if (!afs_osi_suser(*acred))
5211 mode = flags[0] - 1;
5213 afs_ConflictPolicy = flags[1] - 1;
5217 /* Fake InitReq support for UID override */
5218 memset(&lreq, 0, sizeof(lreq));
5219 lreq.uid = flags[3];
5220 areq = &lreq; /* override areq we got */
5224 * All of these numbers are hard coded in fs.c. If they
5225 * change here, they should change there and vice versa
5228 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5229 if (!AFS_IS_DISCONNECTED) {
5230 ObtainWriteLock(&afs_discon_lock, 999);
5231 afs_DisconGiveUpCallbacks();
5232 afs_RemoveAllConns();
5233 afs_is_disconnected = 1;
5234 afs_is_discon_rw = 1;
5235 ReleaseWriteLock(&afs_discon_lock);
5238 case 1: /* Fully connected, ("online" mode). */
5239 ObtainWriteLock(&afs_discon_lock, 998);
5242 afs_MarkAllServersUp();
5243 code = afs_ResyncDisconFiles(areq, *acred);
5246 if (code && !force) {
5247 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5248 "Please retry or use \"force\".\n");
5252 afs_DisconDiscardAll(*acred);
5254 afs_ClearAllStatdFlag();
5255 afs_is_disconnected = 0;
5256 afs_is_discon_rw = 0;
5257 afs_warnuser("\nSync succeeded. You are back online.\n");
5260 ReleaseWriteLock(&afs_discon_lock);
5272 return afs_pd_putInt(aout, mode);
5275 #define MAX_PIOCTL_TOKENS 10
5277 DECL_PIOCTL(PSetTokens2)
5280 int i, cellNum, primaryFlag;
5282 struct unixuser *tu;
5283 struct vrequest treq;
5284 struct ktc_setTokenData tokenSet;
5285 struct ktc_tokenUnion decodedToken;
5287 memset(&tokenSet, 0, sizeof(tokenSet));
5289 AFS_STATCNT(PSetTokens2);
5290 if (!afs_resourceinit_flag)
5293 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5295 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5296 afs_pd_xdrEnd(ain, &xdrs);
5300 afs_pd_xdrEnd(ain, &xdrs);
5302 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5303 * process from using up the whole of the kernel memory by allocating
5306 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5307 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5311 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5313 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5317 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5318 if (_settok_setParentPag(acred) == 0) {
5319 afs_InitReq(&treq, *acred);
5324 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5325 /* Free any tokens that we've already got */
5326 afs_FreeTokens(&tu->tokens);
5328 /* Iterate across the set of tokens we've received, and stuff them
5329 * into this user's tokenJar
5331 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5332 xdrmem_create(&xdrs,
5333 tokenSet.tokens.tokens_val[i].token_opaque_val,
5334 tokenSet.tokens.tokens_val[i].token_opaque_len,
5337 memset(&decodedToken, 0, sizeof(decodedToken));
5338 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5346 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5347 /* This is untidy - the old token interface supported passing
5348 * the primaryFlag as part of the token interface. Current
5349 * OpenAFS userland never sets this, but it's specified as being
5350 * part of the XG interface, so we should probably still support
5351 * it. Rather than add it to our AddToken interface, just handle
5354 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5355 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5359 /* XXX - We should think more about destruction here. It's likely that
5360 * there is key material in what we're about to throw away, which
5361 * we really should zero out before giving back to the allocator */
5362 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5365 tu->states |= UHasTokens;
5366 tu->states &= ~UTokensBad;
5367 afs_SetPrimary(tu, primaryFlag);
5368 tu->tokenTime = osi_Time();
5370 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5373 afs_ResetUserConns(tu);
5374 afs_PutUser(tu, WRITE_LOCK);
5379 DECL_PIOCTL(PGetTokens2)
5381 struct cell *cell = NULL;
5382 struct unixuser *tu = NULL;
5384 char *cellName = NULL;
5389 struct ktc_setTokenData tokenSet;
5391 AFS_STATCNT(PGetTokens);
5392 if (!afs_resourceinit_flag)
5395 memset(&tokenSet, 0, sizeof(tokenSet));
5397 /* No input data - return tokens for primary cell */
5398 /* 4 octets of data is an iterator count */
5399 /* Otherwise, treat as string & return tokens for that cell name */
5401 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5402 /* Integer iterator - return tokens for the n'th cell found for user */
5403 if (afs_pd_getInt(ain, &iterator) != 0)
5405 tu = getNthCell(areq->uid, iterator);
5407 if (afs_pd_remaining(ain) > 0) {
5408 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5413 code = _settok_tokenCell(cellName, &cellNum, NULL);
5416 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5423 if (!(tu->states & UHasTokens)
5424 || !afs_HasValidTokens(tu->tokens, now)) {
5425 tu->states |= (UTokensBad | UNeedsReset);
5426 afs_PutUser(tu, READ_LOCK);
5430 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5434 cell = afs_GetCell(tu->cell, READ_LOCK);
5435 tokenSet.cell = cell->cellName;
5436 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5437 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5441 afs_pd_xdrEnd(aout, &xdrs);
5444 tokenSet.cell = NULL;
5447 afs_PutUser(tu, READ_LOCK);
5449 afs_PutCell(cell, READ_LOCK);
5450 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5455 DECL_PIOCTL(PNFSNukeCreds)
5459 struct unixuser *tu;
5461 AFS_STATCNT(PUnlog);
5462 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5463 return EIO; /* Inappropriate ioctl for device */
5465 if (afs_pd_getUint(ain, &addr) != 0)
5468 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5469 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5470 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5471 afs_PutUser(tu, SHARED_LOCK);
5474 afs_PutUser(tu, SHARED_LOCK);
5475 } else if (!afs_osi_suser(acred)) {
5479 ObtainWriteLock(&afs_xuser, 227);
5480 for (i = 0; i < NUSERS; i++) {
5481 for (tu = afs_users[i]; tu; tu = tu->next) {
5482 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5484 ReleaseWriteLock(&afs_xuser);
5486 afs_LockUser(tu, WRITE_LOCK, 367);
5488 tu->states &= ~UHasTokens;
5489 afs_FreeTokens(&tu->tokens);
5490 afs_ResetUserConns(tu);
5491 afs_PutUser(tu, WRITE_LOCK);
5492 ObtainWriteLock(&afs_xuser, 228);
5494 /* set the expire times to 0, causes
5495 * afs_GCUserData to remove this entry
5498 #endif /* UKERNEL */
5502 ReleaseWriteLock(&afs_xuser);