2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include "afs/param.h"
14 #include "afs/sysincludes.h" /* Standard vendor system headers */
16 #include "h/syscallargs.h"
19 #include "h/sysproto.h"
22 #include <sys/ioctl.h>
23 #include <sys/ioccom.h>
25 #include "afsincludes.h" /* Afs-based standard headers */
26 #include "afs/afs_stats.h" /* afs statistics */
28 #include "afs/afs_bypasscache.h"
29 #include "rx/rx_globals.h"
32 extern int afs_rmtsys_enable;
33 struct VenusFid afs_rootFid;
34 afs_int32 afs_waitForever = 0;
35 short afs_waitForeverCount = 0;
36 afs_int32 afs_showflags = GAGUSER | GAGCONSOLE; /* show all messages */
38 afs_int32 afs_is_disconnected;
39 afs_int32 afs_is_discon_rw;
40 /* On reconnection, turn this knob on until it finishes,
43 afs_int32 afs_in_sync = 0;
51 * A set of handy little functions for encoding and decoding
52 * pioctls without losing your marbles, or memory integrity
56 afs_pd_alloc(struct afs_pdata *apd, size_t size)
59 if (size > AFS_LRALLOCSIZ)
60 apd->ptr = osi_Alloc(size + 1);
62 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
67 apd->remaining = size;
73 afs_pd_free(struct afs_pdata *apd)
78 if (apd->remaining > AFS_LRALLOCSIZ)
79 osi_Free(apd->ptr, apd->remaining + 1);
81 osi_FreeLargeSpace(apd->ptr);
88 afs_pd_where(struct afs_pdata *apd)
90 return apd ? apd->ptr : NULL;
94 afs_pd_remaining(struct afs_pdata *apd)
96 return apd ? apd->remaining : 0;
100 afs_pd_skip(struct afs_pdata *apd, size_t skip)
102 if (apd == NULL || apd->remaining < skip)
104 apd->remaining -= skip;
111 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
113 if (apd == NULL || apd->remaining < bytes)
115 apd->remaining -= bytes;
116 memcpy(dest, apd->ptr, bytes);
122 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
124 return afs_pd_getBytes(apd, val, sizeof(*val));
128 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
130 return afs_pd_getBytes(apd, val, sizeof(*val));
134 afs_pd_inline(struct afs_pdata *apd, size_t bytes)
138 if (apd == NULL || apd->remaining < bytes)
143 apd->remaining -= bytes;
150 afs_pd_xdrStart(struct afs_pdata *apd, XDR *xdrs, enum xdr_op op) {
151 xdrmem_create(xdrs, apd->ptr, apd->remaining, op);
155 afs_pd_xdrEnd(struct afs_pdata *apd, XDR *xdrs) {
158 pos = xdr_getpos(xdrs);
160 apd->remaining -= pos;
167 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
171 if (apd == NULL || apd->remaining <= 0)
173 len = strlen(apd->ptr) + 1;
176 memcpy(str, apd->ptr, len);
178 apd->remaining -= len;
183 afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
187 if (apd == NULL || apd->remaining <= 0)
189 len = strlen(apd->ptr) + 1;
192 apd->remaining -= len;
197 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
199 if (apd == NULL || apd->remaining < len)
201 memcpy(apd->ptr, bytes, len);
203 apd->remaining -= len;
208 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
210 return afs_pd_putBytes(apd, &val, sizeof(val));
214 afs_pd_putString(struct afs_pdata *apd, char *str) {
216 /* Add 1 so we copy the NULL too */
217 return afs_pd_putBytes(apd, str, strlen(str) +1);
221 * \defgroup pioctl Path IOCTL functions
223 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
226 * the AFS vcache structure in use by pioctl
230 * the AFS vrequest structure
232 * an afs_pdata block describing the data received from the caller
234 * an afs_pdata block describing a pre-allocated block for output
236 * UNIX credentials structure underlying the operation
239 #define DECL_PIOCTL(x) \
240 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
241 struct afs_pdata *ain, struct afs_pdata *aout, \
244 /* Prototypes for pioctl routines */
245 DECL_PIOCTL(PGetFID);
246 DECL_PIOCTL(PSetAcl);
247 DECL_PIOCTL(PStoreBehind);
248 DECL_PIOCTL(PGCPAGs);
249 DECL_PIOCTL(PGetAcl);
252 DECL_PIOCTL(PGetFileCell);
253 DECL_PIOCTL(PGetWSCell);
254 DECL_PIOCTL(PGetUserCell);
255 DECL_PIOCTL(PSetTokens);
256 DECL_PIOCTL(PSetTokens2);
257 DECL_PIOCTL(PGetVolumeStatus);
258 DECL_PIOCTL(PSetVolumeStatus);
260 DECL_PIOCTL(PNewStatMount);
261 DECL_PIOCTL(PGetTokens);
262 DECL_PIOCTL(PGetTokens2);
264 DECL_PIOCTL(PMariner);
265 DECL_PIOCTL(PCheckServers);
266 DECL_PIOCTL(PCheckVolNames);
267 DECL_PIOCTL(PCheckAuth);
268 DECL_PIOCTL(PFindVolume);
269 DECL_PIOCTL(PViceAccess);
270 DECL_PIOCTL(PSetCacheSize);
271 DECL_PIOCTL(PGetCacheSize);
272 DECL_PIOCTL(PRemoveCallBack);
273 DECL_PIOCTL(PNewCell);
274 DECL_PIOCTL(PNewAlias);
275 DECL_PIOCTL(PListCells);
276 DECL_PIOCTL(PListAliases);
277 DECL_PIOCTL(PRemoveMount);
278 DECL_PIOCTL(PGetCellStatus);
279 DECL_PIOCTL(PSetCellStatus);
280 DECL_PIOCTL(PFlushVolumeData);
281 DECL_PIOCTL(PFlushAllVolumeData);
282 DECL_PIOCTL(PGetVnodeXStatus);
283 DECL_PIOCTL(PGetVnodeXStatus2);
284 DECL_PIOCTL(PSetSysName);
285 DECL_PIOCTL(PSetSPrefs);
286 DECL_PIOCTL(PSetSPrefs33);
287 DECL_PIOCTL(PGetSPrefs);
288 DECL_PIOCTL(PExportAfs);
290 DECL_PIOCTL(PTwiddleRx);
291 DECL_PIOCTL(PGetInitParams);
292 DECL_PIOCTL(PGetRxkcrypt);
293 DECL_PIOCTL(PSetRxkcrypt);
294 DECL_PIOCTL(PGetCPrefs);
295 DECL_PIOCTL(PSetCPrefs);
296 DECL_PIOCTL(PFlushMount);
297 DECL_PIOCTL(PRxStatProc);
298 DECL_PIOCTL(PRxStatPeer);
299 DECL_PIOCTL(PPrefetchFromTape);
301 DECL_PIOCTL(PCallBackAddr);
302 DECL_PIOCTL(PDiscon);
303 DECL_PIOCTL(PNFSNukeCreds);
304 DECL_PIOCTL(PNewUuid);
305 DECL_PIOCTL(PPrecache);
306 DECL_PIOCTL(PGetPAG);
307 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
308 DECL_PIOCTL(PSetCachingThreshold);
312 * A macro that says whether we're going to need HandleClientContext().
313 * This is currently used only by the nfs translator.
315 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
316 #define AFS_NEED_CLIENTCONTEXT
319 /* Prototypes for private routines */
320 #ifdef AFS_NEED_CLIENTCONTEXT
321 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
325 int HandleIoctl(struct vcache *avc, afs_int32 acom,
326 struct afs_ioctl *adata);
327 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
328 struct afs_ioctl *ablob, int afollow,
329 afs_ucred_t **acred);
330 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
333 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
334 struct afs_pdata *, struct afs_pdata *,
337 static pioctlFunction VpioctlSw[] = {
342 PGetVolumeStatus, /* 4 */
343 PSetVolumeStatus, /* 5 */
348 PCheckServers, /* 10 */
349 PCheckVolNames, /* 11 */
351 PBogus, /* 13 -- used to be quick check time */
352 PFindVolume, /* 14 */
353 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
354 PBogus, /* 16 -- used to be testing code */
355 PNoop, /* 17 -- used to be enable group */
356 PNoop, /* 18 -- used to be disable group */
357 PBogus, /* 19 -- used to be list group */
358 PViceAccess, /* 20 */
359 PUnlog, /* 21 -- unlog *is* unpag in this system */
360 PGetFID, /* 22 -- get file ID */
361 PBogus, /* 23 -- used to be waitforever */
362 PSetCacheSize, /* 24 */
363 PRemoveCallBack, /* 25 -- flush only the callback */
366 PRemoveMount, /* 28 -- delete mount point */
367 PNewStatMount, /* 29 -- new style mount point stat */
368 PGetFileCell, /* 30 -- get cell name for input file */
369 PGetWSCell, /* 31 -- get cell name for workstation */
370 PMariner, /* 32 - set/get mariner host */
371 PGetUserCell, /* 33 -- get cell name for user */
372 PBogus, /* 34 -- Enable/Disable logging */
373 PGetCellStatus, /* 35 */
374 PSetCellStatus, /* 36 */
375 PFlushVolumeData, /* 37 -- flush all data from a volume */
376 PSetSysName, /* 38 - Set system name */
377 PExportAfs, /* 39 - Export Afs to remote nfs clients */
378 PGetCacheSize, /* 40 - get cache size and usage */
379 PGetVnodeXStatus, /* 41 - get vcache's special status */
380 PSetSPrefs33, /* 42 - Set CM Server preferences... */
381 PGetSPrefs, /* 43 - Get CM Server preferences... */
382 PGag, /* 44 - turn off/on all CM messages */
383 PTwiddleRx, /* 45 - adjust some RX params */
384 PSetSPrefs, /* 46 - Set CM Server preferences... */
385 PStoreBehind, /* 47 - set degree of store behind to be done */
386 PGCPAGs, /* 48 - disable automatic pag gc-ing */
387 PGetInitParams, /* 49 - get initial cm params */
388 PGetCPrefs, /* 50 - get client interface addresses */
389 PSetCPrefs, /* 51 - set client interface addresses */
390 PFlushMount, /* 52 - flush mount symlink data */
391 PRxStatProc, /* 53 - control process RX statistics */
392 PRxStatPeer, /* 54 - control peer RX statistics */
393 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
394 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
395 PBogus, /* 57 -- arla: set file prio */
396 PBogus, /* 58 -- arla: fallback getfh */
397 PBogus, /* 59 -- arla: fallback fhopen */
398 PBogus, /* 60 -- arla: controls xfsdebug */
399 PBogus, /* 61 -- arla: controls arla debug */
400 PBogus, /* 62 -- arla: debug interface */
401 PBogus, /* 63 -- arla: print xfs status */
402 PBogus, /* 64 -- arla: force cache check */
403 PBogus, /* 65 -- arla: break callback */
404 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
405 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
406 PBogus, /* 68 -- arla: fetch stats */
407 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
410 static pioctlFunction CpioctlSw[] = {
412 PNewAlias, /* 1 -- create new cell alias */
413 PListAliases, /* 2 -- list cell aliases */
414 PCallBackAddr, /* 3 -- request addr for callback rxcon */
416 PDiscon, /* 5 -- get/set discon mode */
425 PFlushAllVolumeData, /* 14 */
428 static pioctlFunction OpioctlSw[] = {
430 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
431 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
432 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
434 PNoop /* 2 -- get/set cache-bypass size threshold */
438 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
439 int afs_nobody = NFS_NOBODY;
442 HandleIoctl(struct vcache *avc, afs_int32 acom,
443 struct afs_ioctl *adata)
448 AFS_STATCNT(HandleIoctl);
450 switch (acom & 0xff) {
452 avc->f.states |= CSafeStore;
454 /* SXW - Should we force a MetaData flush for this flag setting */
457 /* case 2 used to be abort store, but this is no longer provided,
458 * since it is impossible to implement under normal Unix.
462 /* return the name of the cell this file is open on */
466 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
468 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
470 if (i > adata->out_size) {
471 /* 0 means we're not interested in the output */
472 if (adata->out_size != 0)
476 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
478 afs_PutCell(tcell, READ_LOCK);
484 case 49: /* VIOC_GETINITPARAMS */
485 if (adata->out_size < sizeof(struct cm_initparams)) {
488 AFS_COPYOUT(&cm_initParams, adata->out,
489 sizeof(struct cm_initparams), code);
501 return code; /* so far, none implemented */
505 /* For aix we don't temporarily bypass ioctl(2) but rather do our
506 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
507 * is now called from afs_gn_ioctl.
510 afs_ioctl(struct vcache *tvc, int cmd, int arg)
512 struct afs_ioctl data;
515 AFS_STATCNT(afs_ioctl);
516 if (((cmd >> 8) & 0xff) == 'V') {
517 /* This is a VICEIOCTL call */
518 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
521 error = HandleIoctl(tvc, cmd, &data);
524 /* No-op call; just return. */
528 # if defined(AFS_AIX32_ENV)
529 # if defined(AFS_AIX51_ENV)
532 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
534 # else /* __64BIT__ */
536 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
538 # endif /* __64BIT__ */
541 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
542 # endif /* AFS_AIX51_ENV */
547 # ifdef AFS_AIX51_ENV
550 } u_uap, *uap = &u_uap;
553 int ioctlDone = 0, code = 0;
555 AFS_STATCNT(afs_xioctl);
559 # ifdef AFS_AIX51_ENV
563 if (setuerror(getf(uap->fd, &fd))) {
566 if (fd->f_type == DTYPE_VNODE) {
567 /* good, this is a vnode; next see if it is an AFS vnode */
568 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
569 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
570 /* This is an AFS vnode */
571 if (((uap->com >> 8) & 0xff) == 'V') {
572 struct afs_ioctl *datap;
574 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
575 code=copyin_afs_ioctl((char *)uap->arg, datap);
577 osi_FreeSmallSpace(datap);
579 # if defined(AFS_AIX41_ENV)
582 return (setuerror(code), code);
584 code = HandleIoctl(tvc, uap->com, datap);
585 osi_FreeSmallSpace(datap);
588 # if defined(AFS_AIX41_ENV)
595 # if defined(AFS_AIX41_ENV)
597 # if defined(AFS_AIX51_ENV)
599 code = okioctl(fdes, com, arg, ext, arg2, arg3);
600 # else /* __64BIT__ */
601 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
602 # endif /* __64BIT__ */
603 # else /* !AFS_AIX51_ENV */
604 code = okioctl(fdes, com, arg, ext);
605 # endif /* AFS_AIX51_ENV */
607 # elif defined(AFS_AIX32_ENV)
608 okioctl(fdes, com, arg, ext);
611 # if defined(KERNEL_HAVE_UERROR)
614 # if !defined(AFS_AIX41_ENV)
615 return (getuerror()? -1 : u.u_ioctlrv);
617 return getuerror()? -1 : 0;
624 #elif defined(AFS_SGI_ENV)
625 # if defined(AFS_SGI65_ENV)
626 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
627 rval_t * rvalp, struct vopbd * vbds)
629 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
630 rval_t * rvalp, struct vopbd * vbds)
633 struct afs_ioctl data;
639 AFS_STATCNT(afs_ioctl);
640 if (((cmd >> 8) & 0xff) == 'V') {
641 /* This is a VICEIOCTL call */
642 error = copyin_afs_ioctl(arg, &data);
645 locked = ISAFS_GLOCK();
648 error = HandleIoctl(tvc, cmd, &data);
653 /* No-op call; just return. */
657 #elif defined(AFS_SUN5_ENV)
658 struct afs_ioctl_sys {
665 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
669 int ioctlDone = 0, code = 0;
671 AFS_STATCNT(afs_xioctl);
675 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
676 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
677 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
678 /* This is an AFS vnode */
679 if (((uap->com >> 8) & 0xff) == 'V') {
680 struct afs_ioctl *datap;
682 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
683 code=copyin_afs_ioctl((char *)uap->arg, datap);
685 osi_FreeSmallSpace(datap);
690 code = HandleIoctl(tvc, uap->com, datap);
691 osi_FreeSmallSpace(datap);
699 code = ioctl(uap, rvp);
703 #elif defined(AFS_LINUX22_ENV)
704 struct afs_ioctl_sys {
709 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
712 struct afs_ioctl_sys ua, *uap = &ua;
716 AFS_STATCNT(afs_xioctl);
721 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
722 /* This is an AFS vnode */
723 if (((uap->com >> 8) & 0xff) == 'V') {
724 struct afs_ioctl *datap;
726 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
727 code = copyin_afs_ioctl((char *)uap->arg, datap);
729 osi_FreeSmallSpace(datap);
733 code = HandleIoctl(tvc, uap->com, datap);
734 osi_FreeSmallSpace(datap);
742 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
750 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
754 int ioctlDone = 0, code = 0;
756 AFS_STATCNT(afs_xioctl);
757 if ((code = fdgetf(p, uap->fd, &fd)))
759 if (fd->f_type == DTYPE_VNODE) {
760 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
761 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
762 /* This is an AFS vnode */
763 if (((uap->com >> 8) & 0xff) == 'V') {
764 struct afs_ioctl *datap;
766 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
767 code = copyin_afs_ioctl((char *)uap->arg, datap);
769 osi_FreeSmallSpace(datap);
773 code = HandleIoctl(tvc, uap->com, datap);
774 osi_FreeSmallSpace(datap);
782 return ioctl(p, uap, retval);
786 #elif defined(AFS_XBSD_ENV)
787 # if defined(AFS_FBSD_ENV)
790 afs_xioctl(struct thread *td, struct ioctl_args *uap,
793 afs_proc_t *p = td->td_proc;
794 # elif defined(AFS_NBSD_ENV)
796 afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
806 afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
809 struct filedesc *fdp;
811 int ioctlDone = 0, code = 0;
814 AFS_STATCNT(afs_xioctl);
815 #if defined(AFS_NBSD40_ENV)
816 fdp = p->l_proc->p_fd;
820 #if defined(AFS_NBSD50_ENV)
821 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL)
823 #elif defined(AFS_FBSD100_ENV)
824 if ((uap->fd >= fdp->fd_nfiles)
825 || ((fd = fdp->fd_ofiles[uap->fd].fde_file) == NULL))
828 if ((uap->fd >= fdp->fd_nfiles)
829 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL))
832 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
834 /* first determine whether this is any sort of vnode */
835 if (fd->f_type == DTYPE_VNODE) {
836 /* good, this is a vnode; next see if it is an AFS vnode */
837 # if defined(AFS_OBSD_ENV)
839 IsAfsVnode((struct vnode *)fd->
840 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
842 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
844 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)) {
845 /* This is an AFS vnode */
846 #if defined(AFS_NBSD50_ENV)
847 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
849 if (((uap->com >> 8) & 0xff) == 'V') {
851 struct afs_ioctl *datap;
853 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
854 #if defined(AFS_NBSD50_ENV)
855 code = copyin_afs_ioctl(SCARG(uap, data), datap);
857 code = copyin_afs_ioctl((char *)uap->arg, datap);
860 osi_FreeSmallSpace(datap);
864 #if defined(AFS_NBSD50_ENV)
865 code = HandleIoctl(tvc, SCARG(uap, com), datap);
867 code = HandleIoctl(tvc, uap->com, datap);
869 osi_FreeSmallSpace(datap);
876 #if defined(AFS_NBSD50_ENV)
877 fd_putfile(SCARG(uap, fd));
881 # if defined(AFS_FBSD_ENV)
882 # if (__FreeBSD_version >= 900044)
883 return sys_ioctl(td, uap);
885 return ioctl(td, uap);
887 # elif defined(AFS_OBSD_ENV)
888 code = sys_ioctl(p, uap, retval);
889 # elif defined(AFS_NBSD_ENV)
890 code = sys_ioctl(p, uap, retval);
896 #elif defined(UKERNEL)
904 } *uap = (struct a *)get_user_struct()->u_ap;
907 int ioctlDone = 0, code = 0;
909 AFS_STATCNT(afs_xioctl);
914 /* first determine whether this is any sort of vnode */
915 if (fd->f_type == DTYPE_VNODE) {
916 /* good, this is a vnode; next see if it is an AFS vnode */
917 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
918 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
919 /* This is an AFS vnode */
920 if (((uap->com >> 8) & 0xff) == 'V') {
921 struct afs_ioctl *datap;
923 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
924 code=copyin_afs_ioctl((char *)uap->arg, datap);
926 osi_FreeSmallSpace(datap);
929 return (setuerror(code), code);
931 code = HandleIoctl(tvc, uap->com, datap);
932 osi_FreeSmallSpace(datap);
945 #endif /* AFS_HPUX102_ENV */
947 #if defined(AFS_SGI_ENV)
948 /* "pioctl" system call entry point; just pass argument to the parameterized
957 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
961 AFS_STATCNT(afs_pioctl);
963 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
965 # ifdef AFS_SGI64_ENV
972 #elif defined(AFS_FBSD_ENV)
974 afs_pioctl(struct thread *td, void *args, int *retval)
981 } *uap = (struct a *)args;
983 AFS_STATCNT(afs_pioctl);
984 return (afs_syscall_pioctl
985 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
988 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
990 afs_pioctl(afs_proc_t *p, void *args, int *retval)
997 } *uap = (struct a *)args;
999 AFS_STATCNT(afs_pioctl);
1000 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
1001 return (afs_syscall_pioctl
1002 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1005 return (afs_syscall_pioctl
1006 (uap->path, uap->cmd, uap->cmarg, uap->follow,
1007 # if defined(AFS_FBSD_ENV)
1010 p->p_cred->pc_ucred));
1017 /* macro to avoid adding any more #ifdef's to pioctl code. */
1018 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1019 #define PIOCTL_FREE_CRED() crfree(credp)
1021 #define PIOCTL_FREE_CRED()
1026 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1027 rval_t *vvp, afs_ucred_t *credp)
1029 #ifdef AFS_DARWIN100_ENV
1030 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1031 int follow, afs_ucred_t *credp)
1032 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1033 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1036 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1040 struct afs_ioctl data;
1041 #ifdef AFS_NEED_CLIENTCONTEXT
1042 afs_ucred_t *tmpcred = NULL;
1044 #if defined(AFS_NEED_CLIENTCONTEXT) || defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1045 afs_ucred_t *foreigncreds = NULL;
1048 struct vnode *vp = NULL;
1049 #ifdef AFS_AIX41_ENV
1050 struct ucred *credp = crref(); /* don't free until done! */
1052 #ifdef AFS_LINUX22_ENV
1053 cred_t *credp = crref(); /* don't free until done! */
1057 AFS_STATCNT(afs_syscall_pioctl);
1059 follow = 1; /* compat. with old venus */
1060 code = copyin_afs_ioctl(cmarg, &data);
1063 #if defined(KERNEL_HAVE_UERROR)
1068 if ((com & 0xff) == PSetClientContext) {
1069 #ifdef AFS_NEED_CLIENTCONTEXT
1070 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1071 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1073 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1077 crfree(foreigncreds);
1080 #if defined(KERNEL_HAVE_UERROR)
1081 return (setuerror(code), code);
1086 #else /* AFS_NEED_CLIENTCONTEXT */
1088 #endif /* AFS_NEED_CLIENTCONTEXT */
1090 #ifdef AFS_NEED_CLIENTCONTEXT
1093 * We could have done without temporary setting the u.u_cred below
1094 * (foreigncreds could be passed as param the pioctl modules)
1095 * but calls such as afs_osi_suser() doesn't allow that since it
1096 * references u.u_cred directly. We could, of course, do something
1097 * like afs_osi_suser(cred) which, I think, is better since it
1098 * generalizes and supports multi cred environments...
1100 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1102 credp = foreigncreds;
1103 #elif defined(AFS_AIX41_ENV)
1104 tmpcred = crref(); /* XXX */
1105 crset(foreigncreds);
1106 #elif defined(AFS_HPUX101_ENV)
1107 tmpcred = p_cred(u.u_procp);
1108 set_p_cred(u.u_procp, foreigncreds);
1109 #elif defined(AFS_SGI_ENV)
1110 tmpcred = OSI_GET_CURRENT_CRED();
1111 OSI_SET_CURRENT_CRED(foreigncreds);
1114 u.u_cred = foreigncreds;
1117 #endif /* AFS_NEED_CLIENTCONTEXT */
1118 if ((com & 0xff) == 15) {
1119 /* special case prefetch so entire pathname eval occurs in helper process.
1120 * otherwise, the pioctl call is essentially useless */
1121 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1123 Prefetch(path, &data, follow,
1124 foreigncreds ? foreigncreds : credp);
1126 code = Prefetch(path, &data, follow, osi_curcred());
1129 #if defined(KERNEL_HAVE_UERROR)
1136 #ifdef AFS_AIX41_ENV
1138 lookupname(path, USR, follow, NULL, &vp,
1139 foreigncreds ? foreigncreds : credp);
1141 #ifdef AFS_LINUX22_ENV
1142 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1144 vp = (struct vnode *)dp->d_inode;
1146 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1147 #endif /* AFS_LINUX22_ENV */
1148 #endif /* AFS_AIX41_ENV */
1152 #if defined(KERNEL_HAVE_UERROR)
1160 #if defined(AFS_SUN510_ENV)
1161 if (vp && !IsAfsVnode(vp)) {
1162 struct vnode *realvp;
1164 #ifdef AFS_SUN511_ENV
1165 (VOP_REALVP(vp, &realvp, NULL) == 0)
1167 (VOP_REALVP(vp, &realvp) == 0)
1170 struct vnode *oldvp = vp;
1178 /* now make the call if we were passed no file, or were passed an AFS file */
1179 if (!vp || IsAfsVnode(vp)) {
1180 #if defined(AFS_SUN5_ENV)
1181 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1182 #elif defined(AFS_AIX41_ENV)
1184 struct ucred *cred1, *cred2;
1187 cred1 = cred2 = foreigncreds;
1189 cred1 = cred2 = credp;
1191 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1192 if (cred1 != cred2) {
1193 /* something changed the creds */
1197 #elif defined(AFS_HPUX101_ENV)
1199 struct ucred *cred = p_cred(u.u_procp);
1200 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1202 #elif defined(AFS_SGI_ENV)
1205 credp = OSI_GET_CURRENT_CRED();
1206 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1208 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1209 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1210 #elif defined(UKERNEL)
1211 code = afs_HandlePioctl(vp, com, &data, follow,
1212 &(get_user_struct()->u_cred));
1214 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1217 #if defined(KERNEL_HAVE_UERROR)
1220 code = EINVAL; /* not in /afs */
1225 #if defined(AFS_NEED_CLIENTCONTEXT)
1227 #ifdef AFS_AIX41_ENV
1228 crset(tmpcred); /* restore original credentials */
1230 #if defined(AFS_HPUX101_ENV)
1231 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1232 #elif defined(AFS_SGI_ENV)
1233 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1234 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1235 credp = tmpcred; /* restore original credentials */
1237 osi_curcred() = tmpcred; /* restore original credentials */
1238 #endif /* AFS_HPUX101_ENV */
1239 crfree(foreigncreds);
1242 #endif /* AFS_NEED_CLIENTCONTEXT */
1244 #ifdef AFS_LINUX22_ENV
1246 * Holding the global lock when calling dput can cause a deadlock
1247 * when the kernel calls back into afs_dentry_iput
1253 #if defined(AFS_FBSD80_ENV)
1254 if (VOP_ISLOCKED(vp))
1256 #endif /* AFS_FBSD80_ENV */
1257 AFS_RELE(vp); /* put vnode back */
1261 #if defined(KERNEL_HAVE_UERROR)
1264 return (getuerror());
1270 #ifdef AFS_DARWIN100_ENV
1272 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1273 int follow, afs_ucred_t *credp)
1275 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1276 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1281 #define MAXPIOCTLTOKENLEN \
1282 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1285 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1286 struct afs_ioctl *ablob, int afollow,
1287 afs_ucred_t **acred)
1290 struct vrequest *treq = NULL;
1292 afs_int32 function, device;
1293 struct afs_pdata input, output;
1294 struct afs_pdata copyInput, copyOutput;
1296 pioctlFunction *pioctlSw;
1298 struct afs_fakestat_state fakestate;
1300 memset(&input, 0, sizeof(input));
1301 memset(&output, 0, sizeof(output));
1303 avc = avp ? VTOAFS(avp) : NULL;
1304 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1305 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1306 AFS_STATCNT(HandlePioctl);
1308 code = afs_CreateReq(&treq, *acred);
1312 afs_InitFakeStat(&fakestate);
1314 code = afs_EvalFakeStat(&avc, &fakestate, treq);
1318 device = (acom & 0xff00) >> 8;
1320 case 'V': /* Original pioctls */
1321 pioctlSw = VpioctlSw;
1322 pioctlSwSize = sizeof(VpioctlSw);
1324 case 'C': /* Coordinated/common pioctls */
1325 pioctlSw = CpioctlSw;
1326 pioctlSwSize = sizeof(CpioctlSw);
1328 case 'O': /* Coordinated/common pioctls */
1329 pioctlSw = OpioctlSw;
1330 pioctlSwSize = sizeof(OpioctlSw);
1336 function = acom & 0xff;
1337 if (function >= (pioctlSwSize / sizeof(char *))) {
1342 /* Do all range checking before continuing */
1343 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1344 ablob->in_size < 0 || ablob->out_size < 0) {
1349 code = afs_pd_alloc(&input, ablob->in_size);
1353 if (ablob->in_size > 0) {
1354 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1355 input.ptr[input.remaining] = '\0';
1360 if ((function == 8 && device == 'V') ||
1361 (function == 7 && device == 'C')) { /* PGetTokens */
1362 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1364 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1370 copyOutput = output;
1373 (*pioctlSw[function]) (avc, function, treq, ©Input,
1374 ©Output, acred);
1376 outSize = copyOutput.ptr - output.ptr;
1378 if (code == 0 && ablob->out_size > 0) {
1379 if (outSize > ablob->out_size) {
1380 code = E2BIG; /* data wont fit in user buffer */
1381 } else if (outSize) {
1382 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1387 afs_pd_free(&input);
1388 afs_pd_free(&output);
1390 afs_PutFakeStat(&fakestate);
1391 code = afs_CheckCode(code, treq, 41);
1392 afs_DestroyReq(treq);
1397 * VIOCGETFID (22) - Get file ID quickly
1401 * \param[in] ain not in use
1402 * \param[out] aout fid of requested file
1404 * \retval EINVAL Error if some of the initial arguments aren't set
1406 * \post get the file id of some file
1408 DECL_PIOCTL(PGetFID)
1410 AFS_STATCNT(PGetFID);
1413 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1419 * VIOCSETAL (1) - Set access control list
1423 * \param[in] ain the ACL being set
1424 * \param[out] aout the ACL being set returned
1426 * \retval EINVAL Error if some of the standard args aren't set
1428 * \post Changed ACL, via direct writing to the wire
1431 dummy_PSetAcl(char *ain, char *aout)
1436 DECL_PIOCTL(PSetAcl)
1439 struct afs_conn *tconn;
1440 struct AFSOpaque acl;
1441 struct AFSVolSync tsync;
1442 struct AFSFetchStatus OutStatus;
1443 struct rx_connection *rxconn;
1446 AFS_STATCNT(PSetAcl);
1450 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1452 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1453 if (acl.AFSOpaque_len > 1024)
1457 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1459 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1462 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1463 &acl, &OutStatus, &tsync);
1468 } while (afs_Analyze
1469 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1470 SHARED_LOCK, NULL));
1472 /* now we've forgotten all of the access info */
1473 ObtainWriteLock(&afs_xcbhash, 455);
1475 afs_DequeueCallback(avc);
1476 avc->f.states &= ~(CStatd | CUnique);
1477 ReleaseWriteLock(&afs_xcbhash);
1478 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1479 osi_dnlc_purgedp(avc);
1481 /* SXW - Should we flush metadata here? */
1485 int afs_defaultAsynchrony = 0;
1488 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1492 * \param[in] ain sbstruct (store behind structure) input
1493 * \param[out] aout resulting sbstruct
1496 * Error if the user doesn't have super-user credentials
1498 * Error if there isn't enough access to not check the mode bits
1501 * Changes either the default asynchrony (the amount of data that
1502 * can remain to be written when the cache manager returns control
1503 * to the user), or the asyncrony for the specified file.
1505 DECL_PIOCTL(PStoreBehind)
1507 struct sbstruct sbr;
1509 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1512 if (sbr.sb_default != -1) {
1513 if (afs_osi_suser(*acred))
1514 afs_defaultAsynchrony = sbr.sb_default;
1519 if (avc && (sbr.sb_thisfile != -1)) {
1521 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1522 avc->asynchrony = sbr.sb_thisfile;
1527 memset(&sbr, 0, sizeof(sbr));
1528 sbr.sb_default = afs_defaultAsynchrony;
1530 sbr.sb_thisfile = avc->asynchrony;
1533 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1537 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1541 * \param[in] ain not in use
1542 * \param[out] aout not in use
1544 * \retval EACCES Error if the user doesn't have super-user credentials
1546 * \post set the gcpags to GCPAGS_USERDISABLED
1548 DECL_PIOCTL(PGCPAGs)
1550 if (!afs_osi_suser(*acred)) {
1553 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1558 * VIOCGETAL (2) - Get access control list
1562 * \param[in] ain not in use
1563 * \param[out] aout the ACL
1565 * \retval EINVAL Error if some of the standard args aren't set
1566 * \retval ERANGE Error if the vnode of the file id is too large
1567 * \retval -1 Error if getting the ACL failed
1569 * \post Obtain the ACL, based on file ID
1572 * There is a hack to tell which type of ACL is being returned, checks
1573 * the top 2-bytes of the input size to judge what type of ACL it is,
1574 * only for dfs xlator ACLs
1576 DECL_PIOCTL(PGetAcl)
1578 struct AFSOpaque acl;
1579 struct AFSVolSync tsync;
1580 struct AFSFetchStatus OutStatus;
1582 struct afs_conn *tconn;
1584 struct rx_connection *rxconn;
1587 AFS_STATCNT(PGetAcl);
1590 Fid.Volume = avc->f.fid.Fid.Volume;
1591 Fid.Vnode = avc->f.fid.Fid.Vnode;
1592 Fid.Unique = avc->f.fid.Fid.Unique;
1593 if (avc->f.states & CForeign) {
1595 * For a dfs xlator acl we have a special hack so that the
1596 * xlator will distinguish which type of acl will return. So
1597 * we currently use the top 2-bytes (vals 0-4) to tell which
1598 * type of acl to bring back. Horrible hack but this will
1599 * cause the least number of changes to code size and interfaces.
1601 if (Fid.Vnode & 0xc0000000)
1603 Fid.Vnode |= (ain->remaining << 30);
1605 acl.AFSOpaque_val = aout->ptr;
1607 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1609 acl.AFSOpaque_val[0] = '\0';
1610 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1612 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1617 } while (afs_Analyze
1618 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1619 SHARED_LOCK, NULL));
1622 if (acl.AFSOpaque_len == 0)
1623 afs_pd_skip(aout, 1); /* leave the NULL */
1625 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1631 * PNoop returns success. Used for functions which are not implemented
1632 * or are no longer in use.
1636 * \retval Always returns success
1639 * Functions involved in this:
1640 * 17 (VIOCENGROUP) -- used to be enable group;
1641 * 18 (VIOCDISGROUP) -- used to be disable group;
1642 * 2 (?) -- get/set cache-bypass size threshold
1651 * PBogus returns fail. Used for functions which are not implemented or
1652 * are no longer in use.
1656 * \retval EINVAL Always returns this value
1659 * Functions involved in this:
1665 * 13 (VIOCGETTIME) -- used to be quick check time;
1666 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1667 * 16 (VIOCNOP) -- used to be testing code;
1668 * 19 (VIOCLISTGROUPS) -- used to be list group;
1669 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1670 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1671 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1672 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1673 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1674 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1675 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1676 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1677 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1678 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1679 * 68 (?) -- arla: fetch stats;
1683 AFS_STATCNT(PBogus);
1688 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1692 * \param[in] ain not in use (avc used to pass in file id)
1693 * \param[out] aout cell name
1695 * \retval EINVAL Error if some of the standard args aren't set
1696 * \retval ESRCH Error if the file isn't part of a cell
1698 * \post Get a cell based on a passed in file id
1700 DECL_PIOCTL(PGetFileCell)
1704 AFS_STATCNT(PGetFileCell);
1707 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1711 if (afs_pd_putString(aout, tcell->cellName) != 0)
1714 afs_PutCell(tcell, READ_LOCK);
1719 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1723 * \param[in] ain not in use
1724 * \param[out] aout cell name
1727 * Error if the afs daemon hasn't started yet
1729 * Error if the machine isn't part of a cell, for whatever reason
1731 * \post Get the primary cell that the machine is a part of.
1733 DECL_PIOCTL(PGetWSCell)
1735 struct cell *tcell = NULL;
1737 AFS_STATCNT(PGetWSCell);
1738 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1739 return EIO; /* Inappropriate ioctl for device */
1741 tcell = afs_GetPrimaryCell(READ_LOCK);
1742 if (!tcell) /* no primary cell? */
1745 if (afs_pd_putString(aout, tcell->cellName) != 0)
1747 afs_PutCell(tcell, READ_LOCK);
1752 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1756 * \param[in] ain not in use (user id found via areq)
1757 * \param[out] aout cell name
1760 * Error if the user id doesn't have a primary cell specified
1762 * \post Get the primary cell for a certain user, based on the user's uid
1764 DECL_PIOCTL(PGetUserCell)
1767 struct unixuser *tu;
1770 AFS_STATCNT(PGetUserCell);
1771 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1772 return EIO; /* Inappropriate ioctl for device */
1774 /* return the cell name of the primary cell for this user */
1775 i = UHash(areq->uid);
1776 ObtainWriteLock(&afs_xuser, 224);
1777 for (tu = afs_users[i]; tu; tu = tu->next) {
1778 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1780 ReleaseWriteLock(&afs_xuser);
1781 afs_LockUser(tu, READ_LOCK, 0);
1786 tcell = afs_GetCell(tu->cell, READ_LOCK);
1787 afs_PutUser(tu, READ_LOCK);
1791 if (afs_pd_putString(aout, tcell->cellName) != 0)
1793 afs_PutCell(tcell, READ_LOCK);
1796 ReleaseWriteLock(&afs_xuser);
1801 /* Work out which cell we're changing tokens for */
1803 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1811 if (cellName && strlen(cellName) > 0) {
1812 cell = afs_GetCellByName(cellName, READ_LOCK);
1814 cell = afs_GetPrimaryCell(READ_LOCK);
1825 *cellNum = cell->cellNum;
1826 afs_PutCell(cell, READ_LOCK);
1833 _settok_setParentPag(afs_ucred_t **cred) {
1835 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1837 osi_procname(procname, 256);
1838 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1839 MyPidxx2Pid(MyPidxx), procname);
1840 return setpag(osi_curproc(), cred, -1, &pag, 1);
1842 return setpag(cred, -1, &pag, 1);
1847 * VIOCSETTOK (3) - Set authentication tokens
1851 * \param[in] ain the krb tickets from which to set the afs tokens
1852 * \param[out] aout not in use
1855 * Error if the ticket is either too long or too short
1857 * Error if the AFS initState is below 101
1859 * Error if the cell for which the Token is being set can't be found
1862 * Set the Tokens for a specific cell name, unless there is none set,
1863 * then default to primary
1866 DECL_PIOCTL(PSetTokens)
1871 struct unixuser *tu;
1872 struct ClearToken clear;
1876 struct vrequest *treq = NULL;
1877 afs_int32 flag, set_parent_pag = 0;
1879 AFS_STATCNT(PSetTokens);
1880 if (!afs_resourceinit_flag) {
1884 if (afs_pd_getInt(ain, &stLen) != 0)
1887 stp = afs_pd_where(ain); /* remember where the ticket is */
1888 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1889 return EINVAL; /* malloc may fail */
1890 if (afs_pd_skip(ain, stLen) != 0)
1893 if (afs_pd_getInt(ain, &size) != 0)
1895 if (size != sizeof(struct ClearToken))
1898 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1901 if (clear.AuthHandle == -1)
1902 clear.AuthHandle = 999; /* more rxvab compat stuff */
1904 if (afs_pd_remaining(ain) != 0) {
1905 /* still stuff left? we've got primary flag and cell name.
1908 if (afs_pd_getInt(ain, &flag) != 0)
1911 /* some versions of gcc appear to need != 0 in order to get this
1913 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1918 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1921 code = _settok_tokenCell(cellName, &cellNum, NULL);
1925 /* default to primary cell, primary id */
1926 code = _settok_tokenCell(NULL, &cellNum, &flag);
1931 if (set_parent_pag) {
1932 if (_settok_setParentPag(acred) == 0) {
1933 code = afs_CreateReq(&treq, *acred);
1941 /* now we just set the tokens */
1942 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1943 /* Set tokens destroys any that are already there */
1944 afs_FreeTokens(&tu->tokens);
1945 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1947 afs_stats_cmfullperf.authent.TicketUpdates++;
1948 afs_ComputePAGStats();
1949 #endif /* AFS_NOSTATS */
1950 tu->states |= UHasTokens;
1951 tu->states &= ~UTokensBad;
1952 afs_SetPrimary(tu, flag);
1953 tu->tokenTime = osi_Time();
1954 afs_ResetUserConns(tu);
1955 afs_NotifyUser(tu, UTokensObtained);
1956 afs_PutUser(tu, WRITE_LOCK);
1957 afs_DestroyReq(treq);
1963 * VIOCGETVOLSTAT (4) - Get volume status
1967 * \param[in] ain not in use
1968 * \param[out] aout status of the volume
1970 * \retval EINVAL Error if some of the standard args aren't set
1973 * The status of a volume (based on the FID of the volume), or an
1974 * offline message /motd
1976 DECL_PIOCTL(PGetVolumeStatus)
1979 char *offLineMsg = afs_osi_Alloc(256);
1980 char *motd = afs_osi_Alloc(256);
1981 struct afs_conn *tc;
1983 struct AFSFetchVolumeStatus volstat;
1985 struct rx_connection *rxconn;
1988 osi_Assert(offLineMsg != NULL);
1989 osi_Assert(motd != NULL);
1990 AFS_STATCNT(PGetVolumeStatus);
1997 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1999 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
2002 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
2003 &Name, &offLineMsg, &motd);
2008 } while (afs_Analyze
2009 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
2010 SHARED_LOCK, NULL));
2014 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
2015 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2017 if (afs_pd_putString(aout, volName) != 0)
2019 if (afs_pd_putString(aout, offLineMsg) != 0)
2021 if (afs_pd_putString(aout, motd) != 0)
2024 afs_osi_Free(offLineMsg, 256);
2025 afs_osi_Free(motd, 256);
2030 * VIOCSETVOLSTAT (5) - Set volume status
2035 * values to set the status at, offline message, message of the day,
2036 * volume name, minimum quota, maximum quota
2038 * status of a volume, offlines messages, minimum quota, maximumm quota
2041 * Error if some of the standard args aren't set
2043 * Error if the volume is read only, or a backup volume
2045 * Error if the volume can't be accessed
2047 * Error if the volume name, offline message, and motd are too big
2050 * Set the status of a volume, including any offline messages,
2051 * a minimum quota, and a maximum quota
2053 DECL_PIOCTL(PSetVolumeStatus)
2058 struct afs_conn *tc;
2060 struct AFSFetchVolumeStatus volstat;
2061 struct AFSStoreVolumeStatus storeStat;
2063 struct rx_connection *rxconn;
2066 AFS_STATCNT(PSetVolumeStatus);
2070 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2072 if (tvp->states & (VRO | VBackup)) {
2073 afs_PutVolume(tvp, READ_LOCK);
2076 afs_PutVolume(tvp, READ_LOCK);
2081 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2084 if (afs_pd_getStringPtr(ain, &volName) != 0)
2086 if (strlen(volName) > 32)
2089 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2091 if (strlen(offLineMsg) > 256)
2094 if (afs_pd_getStringPtr(ain, &motd) != 0)
2096 if (strlen(motd) > 256)
2099 /* Done reading ... */
2102 if (volstat.MinQuota != -1) {
2103 storeStat.MinQuota = volstat.MinQuota;
2104 storeStat.Mask |= AFS_SETMINQUOTA;
2106 if (volstat.MaxQuota != -1) {
2107 storeStat.MaxQuota = volstat.MaxQuota;
2108 storeStat.Mask |= AFS_SETMAXQUOTA;
2111 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2113 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2116 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2117 volName, offLineMsg, motd);
2122 } while (afs_Analyze
2123 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2124 SHARED_LOCK, NULL));
2128 /* we are sending parms back to make compat. with prev system. should
2129 * change interface later to not ask for current status, just set new
2132 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2134 if (afs_pd_putString(aout, volName) != 0)
2136 if (afs_pd_putString(aout, offLineMsg) != 0)
2138 if (afs_pd_putString(aout, motd) != 0)
2145 * VIOCFLUSH (6) - Invalidate cache entry
2149 * \param[in] ain not in use
2150 * \param[out] aout not in use
2152 * \retval EINVAL Error if some of the standard args aren't set
2154 * \post Flush any information the cache manager has on an entry
2158 AFS_STATCNT(PFlush);
2161 ObtainWriteLock(&avc->lock, 225);
2162 afs_ResetVCache(avc, *acred, 0);
2163 ReleaseWriteLock(&avc->lock);
2168 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2173 * the last component in a path, related to mountpoint that we're
2174 * looking for information about
2176 * volume, cell, link data
2178 * \retval EINVAL Error if some of the standard args aren't set
2179 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2180 * \retval EIO Error if the link data can't be accessed
2182 * \post Get the volume, and cell, as well as the link data for a mount point
2184 DECL_PIOCTL(PNewStatMount)
2189 struct VenusFid tfid;
2192 struct sysname_info sysState;
2193 afs_size_t offset, len;
2195 AFS_STATCNT(PNewStatMount);
2199 if (afs_pd_getStringPtr(ain, &name) != 0)
2202 code = afs_VerifyVCache(avc, areq);
2205 if (vType(avc) != VDIR) {
2208 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2211 Check_AtSys(avc, name, &sysState, areq);
2212 ObtainReadLock(&tdc->lock);
2214 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2215 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2216 ReleaseReadLock(&tdc->lock);
2217 afs_PutDCache(tdc); /* we're done with the data */
2218 bufp = sysState.name;
2222 tfid.Cell = avc->f.fid.Cell;
2223 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2224 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2225 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2227 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2233 if (tvc->mvstat != 1) {
2238 ObtainWriteLock(&tvc->lock, 226);
2239 code = afs_HandleLink(tvc, areq);
2241 if (tvc->linkData) {
2242 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2245 /* we have the data */
2246 if (afs_pd_putString(aout, tvc->linkData) != 0)
2252 ReleaseWriteLock(&tvc->lock);
2255 if (sysState.allocked)
2256 osi_FreeLargeSpace(bufp);
2261 * A helper function to get the n'th cell which a particular user has tokens
2262 * for. This is racy. If new tokens are added whilst we're iterating, then
2263 * we may return some cells twice. If tokens expire mid run, then we'll
2264 * miss some cells from our output. So, could be better, but that would
2265 * require an interface change.
2268 static struct unixuser *
2269 getNthCell(afs_int32 uid, afs_int32 iterator) {
2271 struct unixuser *tu = NULL;
2274 ObtainReadLock(&afs_xuser);
2275 for (tu = afs_users[i]; tu; tu = tu->next) {
2276 if (tu->uid == uid && (tu->states & UHasTokens)) {
2277 if (iterator-- == 0)
2278 break; /* are we done yet? */
2284 ReleaseReadLock(&afs_xuser);
2286 afs_LockUser(tu, READ_LOCK, 0);
2293 * VIOCGETTOK (8) - Get authentication tokens
2297 * \param[in] ain cellid to return tokens for
2298 * \param[out] aout token
2301 * Error if the afs daemon hasn't started yet
2303 * Error if the input parameter is out of the bounds of the available
2306 * Error if there aren't tokens for this cell
2309 * If the input paramater exists, get the token that corresponds to
2310 * the parameter value, if there is no token at this value, get the
2311 * token for the first cell
2313 * \notes "it's a weird interface (from comments in the code)"
2316 DECL_PIOCTL(PGetTokens)
2319 struct unixuser *tu = NULL;
2320 union tokenUnion *token;
2321 afs_int32 iterator = 0;
2326 AFS_STATCNT(PGetTokens);
2327 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2328 return EIO; /* Inappropriate ioctl for device */
2330 /* weird interface. If input parameter is present, it is an integer and
2331 * we're supposed to return the parm'th tokens for this unix uid.
2332 * If not present, we just return tokens for cell 1.
2333 * If counter out of bounds, return EDOM.
2334 * If no tokens for the particular cell, return ENOTCONN.
2335 * Also, if this mysterious parm is present, we return, along with the
2336 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2337 * at the end, in that order.
2339 newStyle = (afs_pd_remaining(ain) > 0);
2341 if (afs_pd_getInt(ain, &iterator) != 0)
2345 tu = getNthCell(areq->uid, iterator);
2347 cellNum = afs_GetPrimaryCellNum();
2349 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2354 if (!(tu->states & UHasTokens)
2355 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2356 tu->states |= (UTokensBad | UNeedsReset);
2357 afs_NotifyUser(tu, UTokensDropped);
2358 afs_PutUser(tu, READ_LOCK);
2361 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2363 /* If they don't have an RXKAD token, but do have other tokens,
2364 * then sadly there's nothing this interface can do to help them. */
2368 /* for compat, we try to return 56 byte tix if they fit */
2369 iterator = token->rxkad.ticketLen;
2371 iterator = 56; /* # of bytes we're returning */
2373 if (afs_pd_putInt(aout, iterator) != 0)
2375 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2377 if (token->rxkad.ticketLen < 56) {
2378 /* Tokens are always 56 bytes or larger */
2379 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2384 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2386 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2387 sizeof(struct ClearToken)) != 0)
2391 /* put out primary id and cell name, too */
2392 iterator = (tu->states & UPrimary ? 1 : 0);
2393 if (afs_pd_putInt(aout, iterator) != 0)
2395 tcell = afs_GetCell(tu->cell, READ_LOCK);
2397 if (afs_pd_putString(aout, tcell->cellName) != 0)
2399 afs_PutCell(tcell, READ_LOCK);
2401 if (afs_pd_putString(aout, "") != 0)
2404 /* Got here, all is good */
2407 afs_PutUser(tu, READ_LOCK);
2412 * VIOCUNLOG (9) - Invalidate tokens
2416 * \param[in] ain not in use
2417 * \param[out] aout not in use
2419 * \retval EIO Error if the afs daemon hasn't been started yet
2421 * \post remove tokens from a user, specified by the user id
2423 * \notes sets the token's time to 0, which then causes it to be removed
2424 * \notes Unlog is the same as un-pag in OpenAFS
2429 struct unixuser *tu;
2431 AFS_STATCNT(PUnlog);
2432 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2433 return EIO; /* Inappropriate ioctl for device */
2435 i = UHash(areq->uid);
2436 ObtainWriteLock(&afs_xuser, 227);
2437 for (tu = afs_users[i]; tu; tu = tu->next) {
2438 if (tu->uid == areq->uid) {
2440 ReleaseWriteLock(&afs_xuser);
2442 afs_LockUser(tu, WRITE_LOCK, 366);
2444 tu->states &= ~UHasTokens;
2445 afs_FreeTokens(&tu->tokens);
2446 afs_NotifyUser(tu, UTokensDropped);
2447 /* We have to drop the lock over the call to afs_ResetUserConns,
2448 * since it obtains the afs_xvcache lock. We could also keep
2449 * the lock, and modify ResetUserConns to take parm saying we
2450 * obtained the lock already, but that is overkill. By keeping
2451 * the "tu" pointer held over the released lock, we guarantee
2452 * that we won't lose our place, and that we'll pass over
2453 * every user conn that existed when we began this call.
2455 afs_ResetUserConns(tu);
2456 afs_PutUser(tu, WRITE_LOCK);
2457 ObtainWriteLock(&afs_xuser, 228);
2459 /* set the expire times to 0, causes
2460 * afs_GCUserData to remove this entry
2463 #endif /* UKERNEL */
2466 ReleaseWriteLock(&afs_xuser);
2471 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2475 * \param[in] ain host address to be set
2476 * \param[out] aout old host address
2479 * depending on whether or not a variable is set, either get the host
2480 * for the cache manager monitor, or set the old address and give it
2483 * \notes Errors turn off mariner
2485 DECL_PIOCTL(PMariner)
2487 afs_int32 newHostAddr;
2488 afs_int32 oldHostAddr;
2490 AFS_STATCNT(PMariner);
2492 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2495 oldHostAddr = 0xffffffff; /* disabled */
2497 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2500 if (newHostAddr == 0xffffffff) {
2501 /* disable mariner operations */
2503 } else if (newHostAddr) {
2505 afs_marinerHost = newHostAddr;
2508 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2515 * VIOCCKSERV (10) - Check that servers are up
2519 * \param[in] ain name of the cell
2520 * \param[out] aout current down server list
2522 * \retval EIO Error if the afs daemon hasn't started yet
2523 * \retval EACCES Error if the user doesn't have super-user credentials
2524 * \retval ENOENT Error if we are unable to obtain the cell
2527 * Either a fast check (where it doesn't contact servers) or a
2528 * local check (checks local cell only)
2530 DECL_PIOCTL(PCheckServers)
2535 char *cellName = NULL;
2537 struct chservinfo *pcheck;
2539 AFS_STATCNT(PCheckServers);
2541 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2542 return EIO; /* Inappropriate ioctl for device */
2544 /* This is tricky, because we need to peak at the datastream to see
2545 * what we're getting. For now, let's cheat. */
2547 /* ain contains either an int32 or a string */
2548 if (ain->remaining == 0)
2551 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2552 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2556 if (pcheck->tinterval >= 0) {
2557 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2559 if (pcheck->tinterval > 0) {
2560 if (!afs_osi_suser(*acred))
2562 afs_probe_interval = pcheck->tinterval;
2566 temp = pcheck->tflags;
2568 cellName = pcheck->tbuffer;
2569 } else { /* For pre afs3.3 versions */
2570 if (afs_pd_getInt(ain, &temp) != 0)
2572 if (afs_pd_remaining(ain) > 0) {
2573 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2579 * 1: fast check, don't contact servers.
2580 * 2: local cell only.
2583 /* have cell name, too */
2584 cellp = afs_GetCellByName(cellName, READ_LOCK);
2589 if (!cellp && (temp & 2)) {
2590 /* use local cell */
2591 cellp = afs_GetPrimaryCell(READ_LOCK);
2593 if (!(temp & 1)) { /* if not fast, call server checker routine */
2594 afs_CheckServers(1, cellp); /* check down servers */
2595 afs_CheckServers(0, cellp); /* check up servers */
2597 /* now return the current down server list */
2598 ObtainReadLock(&afs_xserver);
2599 for (i = 0; i < NSERVERS; i++) {
2600 for (ts = afs_servers[i]; ts; ts = ts->next) {
2601 if (cellp && ts->cell != cellp)
2602 continue; /* cell spec'd and wrong */
2603 if ((ts->flags & SRVR_ISDOWN)
2604 && ts->addr->sa_portal != ts->cell->vlport) {
2605 afs_pd_putInt(aout, ts->addr->sa_ip);
2609 ReleaseReadLock(&afs_xserver);
2611 afs_PutCell(cellp, READ_LOCK);
2616 * VIOCCKBACK (11) - Check backup volume mappings
2620 * \param[in] ain not in use
2621 * \param[out] aout not in use
2623 * \retval EIO Error if the afs daemon hasn't started yet
2626 * Check the root volume, and then check the names if the volume
2627 * check variable is set to force, has expired, is busy, or if
2628 * the mount points variable is set
2630 DECL_PIOCTL(PCheckVolNames)
2632 AFS_STATCNT(PCheckVolNames);
2633 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2634 return EIO; /* Inappropriate ioctl for device */
2636 afs_CheckRootVolume();
2637 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2638 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2643 * VIOCCKCONN (12) - Check connections for a user
2647 * \param[in] ain not in use
2648 * \param[out] aout not in use
2651 * Error if no user is specififed, the user has no tokens set,
2652 * or if the user's tokens are bad
2655 * check to see if a user has the correct authentication.
2656 * If so, allow access.
2658 * \notes Check the connections to all the servers specified
2660 DECL_PIOCTL(PCheckAuth)
2664 struct sa_conn_vector *tcv;
2665 struct unixuser *tu;
2668 AFS_STATCNT(PCheckAuth);
2669 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2670 return EIO; /* Inappropriate ioctl for device */
2673 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2677 /* we have a user */
2678 ObtainReadLock(&afs_xsrvAddr);
2679 ObtainReadLock(&afs_xconn);
2681 /* any tokens set? */
2682 if ((tu->states & UHasTokens) == 0)
2684 /* all connections in cell 1 working? */
2685 for (i = 0; i < NSERVERS; i++) {
2686 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2687 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2688 if (tcv->user == tu && (tu->states & UTokensBad))
2693 ReleaseReadLock(&afs_xsrvAddr);
2694 ReleaseReadLock(&afs_xconn);
2695 afs_PutUser(tu, READ_LOCK);
2697 if (afs_pd_putInt(aout, retValue) != 0)
2703 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2708 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2714 AFS_STATCNT(Prefetch);
2717 tp = osi_AllocLargeSpace(1024);
2718 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2720 osi_FreeLargeSpace(tp);
2723 if (afs_BBusy()) { /* do this as late as possible */
2724 osi_FreeLargeSpace(tp);
2725 return EWOULDBLOCK; /* pretty close */
2727 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2728 (afs_size_t) 0, tp, (void *)0, (void *)0);
2733 * VIOCWHEREIS (14) - Find out where a volume is located
2737 * \param[in] ain not in use
2738 * \param[out] aout volume location
2740 * \retval EINVAL Error if some of the default arguments don't exist
2741 * \retval ENODEV Error if there is no such volume
2743 * \post fine a volume, based on a volume file id
2745 * \notes check each of the servers specified
2747 DECL_PIOCTL(PFindVolume)
2754 AFS_STATCNT(PFindVolume);
2757 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2761 for (i = 0; i < AFS_MAXHOSTS; i++) {
2762 ts = tvp->serverHost[i];
2765 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2770 if (i < AFS_MAXHOSTS) {
2771 /* still room for terminating NULL, add it on */
2772 if (afs_pd_putInt(aout, 0) != 0) {
2778 afs_PutVolume(tvp, READ_LOCK);
2783 * VIOCACCESS (20) - Access using PRS_FS bits
2787 * \param[in] ain PRS_FS bits
2788 * \param[out] aout not in use
2790 * \retval EINVAL Error if some of the initial arguments aren't set
2791 * \retval EACCES Error if access is denied
2793 * \post check to make sure access is allowed
2795 DECL_PIOCTL(PViceAccess)
2800 AFS_STATCNT(PViceAccess);
2804 code = afs_VerifyVCache(avc, areq);
2808 if (afs_pd_getInt(ain, &temp) != 0)
2811 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2819 * VIOC_GETPAG (13) - Get PAG value
2823 * \param[in] ain not in use
2824 * \param[out] aout PAG value or NOPAG
2826 * \post get PAG value for the caller's cred
2828 DECL_PIOCTL(PGetPAG)
2832 pag = PagInCred(*acred);
2834 return afs_pd_putInt(aout, pag);
2837 DECL_PIOCTL(PPrecache)
2841 /*AFS_STATCNT(PPrecache);*/
2842 if (!afs_osi_suser(*acred))
2845 if (afs_pd_getInt(ain, &newValue) != 0)
2848 afs_preCache = newValue*1024;
2853 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2857 * \param[in] ain the size the venus cache should be set to
2858 * \param[out] aout not in use
2860 * \retval EACCES Error if the user doesn't have super-user credentials
2861 * \retval EROFS Error if the cache is set to be in memory
2864 * Set the cache size based on user input. If no size is given,
2865 * set it to the default OpenAFS cache size.
2868 * recompute the general cache parameters for every single block allocated
2870 DECL_PIOCTL(PSetCacheSize)
2875 AFS_STATCNT(PSetCacheSize);
2877 if (!afs_osi_suser(*acred))
2879 /* too many things are setup initially in mem cache version */
2880 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2882 if (afs_pd_getInt(ain, &newValue) != 0)
2885 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2887 if (newValue < afs_min_cache)
2888 afs_cacheBlocks = afs_min_cache;
2890 afs_cacheBlocks = newValue;
2892 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2893 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2894 afs_MaybeWakeupTruncateDaemon();
2895 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2896 afs_osi_Wait(1000, 0, 0);
2897 afs_MaybeWakeupTruncateDaemon();
2902 #define MAXGCSTATS 16
2904 * VIOCGETCACHEPARMS (40) - Get cache stats
2908 * \param[in] ain afs index flags
2909 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2911 * \post Get the cache blocks, and how many of the cache blocks there are
2913 DECL_PIOCTL(PGetCacheSize)
2915 afs_int32 results[MAXGCSTATS];
2917 struct dcache * tdc;
2920 AFS_STATCNT(PGetCacheSize);
2922 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2923 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2924 } else if (afs_pd_remaining(ain) == 0) {
2930 memset(results, 0, sizeof(results));
2931 results[0] = afs_cacheBlocks;
2932 results[1] = afs_blocksUsed;
2933 results[2] = afs_cacheFiles;
2936 for (i = 0; i < afs_cacheFiles; i++) {
2937 if (afs_indexFlags[i] & IFFree) results[3]++;
2939 } else if (2 == flags){
2940 for (i = 0; i < afs_cacheFiles; i++) {
2941 if (afs_indexFlags[i] & IFFree) results[3]++;
2942 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2943 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2944 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2945 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2946 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2948 tdc = afs_indexTable[i];
2951 size = tdc->validPos;
2952 if ( 0 < size && size < (1<<12) ) results[10]++;
2953 else if (size < (1<<14) ) results[11]++;
2954 else if (size < (1<<16) ) results[12]++;
2955 else if (size < (1<<18) ) results[13]++;
2956 else if (size < (1<<20) ) results[14]++;
2957 else if (size >= (1<<20) ) results[15]++;
2961 return afs_pd_putBytes(aout, results, sizeof(results));
2965 * VIOCFLUSHCB (25) - Flush callback only
2969 * \param[in] ain not in use
2970 * \param[out] aout not in use
2972 * \retval EINVAL Error if some of the standard args aren't set
2973 * \retval 0 0 returned if the volume is set to read-only
2976 * Flushes callbacks, by setting the length of callbacks to one,
2977 * setting the next callback to be sent to the CB_DROPPED value,
2978 * and then dequeues everything else.
2980 DECL_PIOCTL(PRemoveCallBack)
2982 struct afs_conn *tc;
2984 struct AFSCallBack CallBacks_Array[1];
2985 struct AFSCBFids theFids;
2986 struct AFSCBs theCBs;
2987 struct rx_connection *rxconn;
2990 AFS_STATCNT(PRemoveCallBack);
2993 if (avc->f.states & CRO)
2994 return 0; /* read-only-ness can't change */
2995 ObtainWriteLock(&avc->lock, 229);
2996 theFids.AFSCBFids_len = 1;
2997 theCBs.AFSCBs_len = 1;
2998 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2999 theCBs.AFSCBs_val = CallBacks_Array;
3000 CallBacks_Array[0].CallBackType = CB_DROPPED;
3001 if (avc->callback) {
3003 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3005 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
3007 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
3011 /* don't set code on failure since we wouldn't use it */
3012 } while (afs_Analyze
3013 (tc, rxconn, code, &avc->f.fid, areq,
3014 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3016 ObtainWriteLock(&afs_xcbhash, 457);
3017 afs_DequeueCallback(avc);
3019 avc->f.states &= ~(CStatd | CUnique);
3020 ReleaseWriteLock(&afs_xcbhash);
3021 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3022 osi_dnlc_purgedp(avc);
3024 ReleaseWriteLock(&avc->lock);
3029 * VIOCNEWCELL (26) - Configure new cell
3034 * the name of the cell, the hosts that will be a part of the cell,
3035 * whether or not it's linked with another cell, the other cell it's
3036 * linked with, the file server port, and the volume server port
3040 * \retval EIO Error if the afs daemon hasn't started yet
3041 * \retval EACCES Error if the user doesn't have super-user cedentials
3042 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3044 * \post creates a new cell
3046 DECL_PIOCTL(PNewCell)
3048 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3049 char *newcell = NULL;
3050 char *linkedcell = NULL;
3052 afs_int32 linkedstate = 0;
3053 afs_int32 fsport = 0, vlport = 0;
3056 AFS_STATCNT(PNewCell);
3057 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3058 return EIO; /* Inappropriate ioctl for device */
3060 if (!afs_osi_suser(*acred))
3063 if (afs_pd_getInt(ain, &magic) != 0)
3065 if (magic != 0x12345678)
3068 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3069 * server addresses while the 3.5 fs newcell command passes
3070 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3073 * This whole logic is bogus, because it relies on the newer command
3074 * sending its 12th address as 0.
3076 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3079 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3080 if (newcell[0] != '\0') {
3083 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3086 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3087 if (afs_pd_getBytes(ain, &cellHosts,
3088 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3090 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3093 if (afs_pd_getInt(ain, &fsport) != 0)
3096 fsport = 0; /* Privileged ports not allowed */
3098 if (afs_pd_getInt(ain, &vlport) != 0)
3101 vlport = 0; /* Privileged ports not allowed */
3103 if (afs_pd_getInt(ain, &ls) != 0)
3106 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3110 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3112 linkedstate |= CLinkedCell;
3115 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3117 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3122 DECL_PIOCTL(PNewAlias)
3124 /* create a new cell alias */
3125 char *realName, *aliasName;
3127 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3128 return EIO; /* Inappropriate ioctl for device */
3130 if (!afs_osi_suser(*acred))
3133 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3135 if (afs_pd_getStringPtr(ain, &realName) != 0)
3138 return afs_NewCellAlias(aliasName, realName);
3142 * VIOCGETCELL (27) - Get cell info
3146 * \param[in] ain The cell index of a specific cell
3147 * \param[out] aout list of servers in the cell
3149 * \retval EIO Error if the afs daemon hasn't started yet
3150 * \retval EDOM Error if there is no cell asked about
3152 * \post Lists the cell's server names and and addresses
3154 DECL_PIOCTL(PListCells)
3156 afs_int32 whichCell;
3157 struct cell *tcell = 0;
3161 AFS_STATCNT(PListCells);
3162 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3163 return EIO; /* Inappropriate ioctl for device */
3165 if (afs_pd_getInt(ain, &whichCell) != 0)
3168 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3174 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3175 if (tcell->cellHosts[i] == 0)
3177 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3180 for (;i < AFS_MAXCELLHOSTS; i++) {
3181 if (afs_pd_putInt(aout, 0) != 0)
3184 if (afs_pd_putString(aout, tcell->cellName) != 0)
3189 afs_PutCell(tcell, READ_LOCK);
3193 DECL_PIOCTL(PListAliases)
3195 afs_int32 whichAlias;
3196 struct cell_alias *tcalias = 0;
3199 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3200 return EIO; /* Inappropriate ioctl for device */
3202 if (afs_pd_getInt(ain, &whichAlias) != 0)
3205 tcalias = afs_GetCellAlias(whichAlias);
3206 if (tcalias == NULL)
3210 if (afs_pd_putString(aout, tcalias->alias) != 0)
3212 if (afs_pd_putString(aout, tcalias->cell) != 0)
3217 afs_PutCellAlias(tcalias);
3222 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3226 * \param[in] ain the name of the file in this dir to remove
3227 * \param[out] aout not in use
3230 * Error if some of the standard args aren't set
3232 * Error if the argument to remove is not a directory
3234 * Error if there is no cache to remove the mount point from or
3235 * if a vcache doesn't exist
3238 * Ensure that everything is OK before deleting the mountpoint.
3239 * If not, don't delete. Delete a mount point based on a file id.
3241 DECL_PIOCTL(PRemoveMount)
3246 struct sysname_info sysState;
3247 afs_size_t offset, len;
3248 struct afs_conn *tc;
3251 struct AFSFetchStatus OutDirStatus;
3252 struct VenusFid tfid;
3253 struct AFSVolSync tsync;
3254 struct rx_connection *rxconn;
3257 /* "ain" is the name of the file in this dir to remove */
3259 AFS_STATCNT(PRemoveMount);
3262 if (afs_pd_getStringPtr(ain, &name) != 0)
3265 code = afs_VerifyVCache(avc, areq);
3268 if (vType(avc) != VDIR)
3271 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3274 Check_AtSys(avc, name, &sysState, areq);
3275 ObtainReadLock(&tdc->lock);
3277 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3278 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3279 ReleaseReadLock(&tdc->lock);
3280 bufp = sysState.name;
3285 tfid.Cell = avc->f.fid.Cell;
3286 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3287 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3288 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3290 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3297 if (tvc->mvstat != 1) {
3303 ObtainWriteLock(&tvc->lock, 230);
3304 code = afs_HandleLink(tvc, areq);
3306 if (tvc->linkData) {
3307 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3312 ReleaseWriteLock(&tvc->lock);
3313 osi_dnlc_purgedp(tvc);
3319 ObtainWriteLock(&avc->lock, 231);
3320 osi_dnlc_remove(avc, bufp, tvc);
3322 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3324 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3327 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3328 &OutDirStatus, &tsync);
3333 } while (afs_Analyze
3334 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3335 SHARED_LOCK, NULL));
3340 ReleaseWriteLock(&avc->lock);
3344 /* we have the thing in the cache */
3345 ObtainWriteLock(&tdc->lock, 661);
3346 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3347 /* we can do it locally */
3348 code = afs_dir_Delete(tdc, bufp);
3350 ZapDCE(tdc); /* surprise error -- invalid value */
3354 ReleaseWriteLock(&tdc->lock);
3355 afs_PutDCache(tdc); /* drop ref count */
3357 avc->f.states &= ~CUnique; /* For the dfs xlator */
3358 ReleaseWriteLock(&avc->lock);
3361 if (sysState.allocked)
3362 osi_FreeLargeSpace(bufp);
3367 * VIOC_GETCELLSTATUS (35) - Get cell status info
3371 * \param[in] ain The cell you want status information on
3372 * \param[out] aout cell state (as a struct)
3374 * \retval EIO Error if the afs daemon hasn't started yet
3375 * \retval ENOENT Error if the cell doesn't exist
3377 * \post Returns the state of the cell as defined in a struct cell
3379 DECL_PIOCTL(PGetCellStatus)
3385 AFS_STATCNT(PGetCellStatus);
3386 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3387 return EIO; /* Inappropriate ioctl for device */
3389 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3392 tcell = afs_GetCellByName(cellName, READ_LOCK);
3395 temp = tcell->states;
3396 afs_PutCell(tcell, READ_LOCK);
3398 return afs_pd_putInt(aout, temp);
3402 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3407 * The cell you want to set information about, and the values you
3412 * \retval EIO Error if the afs daemon hasn't started yet
3413 * \retval EACCES Error if the user doesn't have super-user credentials
3416 * Set the state of the cell in a defined struct cell, based on
3417 * whether or not SetUID is allowed
3419 DECL_PIOCTL(PSetCellStatus)
3423 afs_int32 flags0, flags1;
3425 if (!afs_osi_suser(*acred))
3427 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3428 return EIO; /* Inappropriate ioctl for device */
3430 if (afs_pd_getInt(ain, &flags0) != 0)
3432 if (afs_pd_getInt(ain, &flags1) != 0)
3434 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3437 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3440 if (flags0 & CNoSUID)
3441 tcell->states |= CNoSUID;
3443 tcell->states &= ~CNoSUID;
3444 afs_PutCell(tcell, WRITE_LOCK);
3449 FlushVolumeData(struct VenusFid *afid, afs_ucred_t * acred)
3457 afs_int32 volume = 0;
3458 struct afs_q *tq, *uq;
3459 #ifdef AFS_DARWIN80_ENV
3466 volume = afid->Fid.Volume; /* who to zap */
3471 * Clear stat'd flag from all vnodes from this volume; this will
3472 * invalidate all the vcaches associated with the volume.
3475 ObtainReadLock(&afs_xvcache);
3476 for (i = (afid ? VCHashV(afid) : 0); i < VCSIZE; i = (afid ? VCSIZE : i+1)) {
3477 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3480 if (all || (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell)) {
3481 if (tvc->f.states & CVInit) {
3482 ReleaseReadLock(&afs_xvcache);
3483 afs_osi_Sleep(&tvc->f.states);
3486 #ifdef AFS_DARWIN80_ENV
3487 if (tvc->f.states & CDeadVnode) {
3488 ReleaseReadLock(&afs_xvcache);
3489 afs_osi_Sleep(&tvc->f.states);
3495 if (vnode_ref(vp)) {
3504 ReleaseReadLock(&afs_xvcache);
3505 ObtainWriteLock(&tvc->lock, 232);
3506 afs_ResetVCache(tvc, acred, 1);
3507 ReleaseWriteLock(&tvc->lock);
3508 #ifdef AFS_DARWIN80_ENV
3509 vnode_put(AFSTOV(tvc));
3511 ObtainReadLock(&afs_xvcache);
3513 /* our tvc ptr is still good until now */
3518 ReleaseReadLock(&afs_xvcache);
3521 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3522 for (i = 0; i < afs_cacheFiles; i++) {
3523 if (!(afs_indexFlags[i] & IFEverUsed))
3524 continue; /* never had any data */
3525 tdc = afs_GetValidDSlot(i);
3529 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3530 ReleaseReadLock(&tdc->tlock);
3531 if (all || (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell)) {
3532 if (!(afs_indexFlags[i] & (IFDataMod | IFFree | IFDiscarded))) {
3533 /* if the file is modified, but has a ref cnt of only 1,
3534 * then someone probably has the file open and is writing
3535 * into it. Better to skip flushing such a file, it will be
3536 * brought back immediately on the next write anyway.
3538 * Skip if already freed.
3540 * If we *must* flush, then this code has to be rearranged
3541 * to call afs_storeAllSegments() first */
3542 afs_FlushDCache(tdc);
3546 ReleaseReadLock(&tdc->tlock);
3548 afs_PutDCache(tdc); /* bumped by getdslot */
3550 ReleaseWriteLock(&afs_xdcache);
3552 ObtainReadLock(&afs_xvolume);
3553 for (i = 0; i < NVOLS; i++) {
3554 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3555 if (all || tv->volume == volume) {
3556 afs_ResetVolumeInfo(tv);
3561 ReleaseReadLock(&afs_xvolume);
3563 /* probably, a user is doing this, probably, because things are screwed up.
3564 * maybe it's the dnlc's fault? */
3569 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3573 * \param[in] ain not in use (args in avc)
3574 * \param[out] aout not in use
3576 * \retval EINVAL Error if some of the standard args aren't set
3577 * \retval EIO Error if the afs daemon hasn't started yet
3580 * Flush all cached contents of a volume. Exactly what stays and what
3581 * goes depends on the platform.
3584 * Does not flush a file that a user has open and is using, because
3585 * it will be re-created on next write. Also purges the dnlc,
3586 * because things are screwed up.
3588 DECL_PIOCTL(PFlushVolumeData)
3590 AFS_STATCNT(PFlushVolumeData);
3593 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3594 return EIO; /* Inappropriate ioctl for device */
3596 FlushVolumeData(&avc->f.fid, *acred);
3601 * VIOC_FLUSHALL (14) - Flush whole volume's data for all volumes
3605 * \param[in] ain not in use
3606 * \param[out] aout not in use
3608 * \retval EINVAL Error if some of the standard args aren't set
3609 * \retval EIO Error if the afs daemon hasn't started yet
3612 * Flush all cached contents. Exactly what stays and what
3613 * goes depends on the platform.
3616 * Does not flush a file that a user has open and is using, because
3617 * it will be re-created on next write. Also purges the dnlc,
3618 * because things are screwed up.
3620 DECL_PIOCTL(PFlushAllVolumeData)
3622 AFS_STATCNT(PFlushAllVolumeData);
3624 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3625 return EIO; /* Inappropriate ioctl for device */
3627 FlushVolumeData(NULL, *acred);
3632 * VIOCGETVCXSTATUS (41) - gets vnode x status
3637 * not in use (avc used)
3639 * vcxstat: the file id, the data version, any lock, the parent vnode,
3640 * the parent unique id, the trunc position, the callback, cbExpires,
3641 * what access is being made, what files are open,
3642 * any users executing/writing, the flock count, the states,
3646 * Error if some of the initial default arguments aren't set
3648 * Error if access to check the mode bits is denied
3651 * gets stats for the vnode, a struct listed in vcxstat
3653 DECL_PIOCTL(PGetVnodeXStatus)
3656 struct vcxstat stat;
3659 /* AFS_STATCNT(PGetVnodeXStatus); */
3662 code = afs_VerifyVCache(avc, areq);
3665 if (vType(avc) == VDIR)
3666 mode = PRSFS_LOOKUP;
3669 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3672 memset(&stat, 0, sizeof(struct vcxstat));
3673 stat.fid = avc->f.fid;
3674 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3675 stat.lock = avc->lock;
3676 stat.parentVnode = avc->f.parent.vnode;
3677 stat.parentUnique = avc->f.parent.unique;
3678 hset(stat.flushDV, avc->flushDV);
3679 hset(stat.mapDV, avc->mapDV);
3680 stat.truncPos = avc->f.truncPos;
3681 { /* just grab the first two - won't break anything... */
3682 struct axscache *ac;
3684 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3685 stat.randomUid[i] = ac->uid;
3686 stat.randomAccess[i] = ac->axess;
3689 stat.callback = afs_data_pointer_to_int32(avc->callback);
3690 stat.cbExpires = avc->cbExpires;
3691 stat.anyAccess = avc->f.anyAccess;
3692 stat.opens = avc->opens;
3693 stat.execsOrWriters = avc->execsOrWriters;
3694 stat.flockCount = avc->flockCount;
3695 stat.mvstat = avc->mvstat;
3696 stat.states = avc->f.states;
3697 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3701 DECL_PIOCTL(PGetVnodeXStatus2)
3704 struct vcxstat2 stat;
3709 code = afs_VerifyVCache(avc, areq);
3712 if (vType(avc) == VDIR)
3713 mode = PRSFS_LOOKUP;
3716 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3719 memset(&stat, 0, sizeof(struct vcxstat2));
3721 stat.cbExpires = avc->cbExpires;
3722 stat.anyAccess = avc->f.anyAccess;
3723 stat.mvstat = avc->mvstat;
3724 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3726 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3731 * VIOC_AFS_SYSNAME (38) - Change @sys value
3735 * \param[in] ain new value for @sys
3736 * \param[out] aout count, entry, list (debug values?)
3739 * Error if afsd isn't running, the new sysname is too large,
3740 * the new sysname causes issues (starts with a . or ..),
3741 * there is no PAG set in the credentials, or the user of a PAG
3744 * Error if the user doesn't have super-user credentials
3747 * Set the value of @sys if these things work: if the input isn't
3748 * too long or if input doesn't start with . or ..
3751 * We require root for local sysname changes, but not for remote
3752 * (since we don't really believe remote uids anyway)
3753 * outname[] shouldn't really be needed- this is left as an
3754 * exercise for the reader.
3756 DECL_PIOCTL(PSetSysName)
3758 char *inname = NULL;
3759 char outname[MAXSYSNAME];
3760 afs_int32 setsysname;
3762 struct afs_exporter *exporter;
3763 struct unixuser *au;
3764 afs_int32 pag, error;
3765 int t, count, num = 0, allpags = 0;
3767 struct afs_pdata validate;
3769 AFS_STATCNT(PSetSysName);
3770 if (!afs_globalVFS) {
3771 /* Afsd is NOT running; disable it */
3772 #if defined(KERNEL_HAVE_UERROR)
3773 return (setuerror(EINVAL), EINVAL);
3778 if (afs_pd_getInt(ain, &setsysname) != 0)
3780 if (setsysname & 0x8000) {
3782 setsysname &= ~0x8000;
3787 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3790 for (count = 0; count < setsysname; count++) {
3791 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3794 if (t >= MAXSYSNAME || t <= 0)
3796 /* check for names that can shoot us in the foot */
3797 if (inname[0] == '.' && (inname[1] == 0
3798 || (inname[1] == '.' && inname[2] == 0)))
3801 /* args ok, so go back to the beginning of that section */
3803 if (afs_pd_getStringPtr(ain, &inname) != 0)
3807 if (afs_rmtsys_enable && (afs_cr_gid(*acred) == RMTUSER_REQ ||
3808 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV)) { /* Handles all exporters */
3809 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3812 pag = PagInCred(*acred);
3814 return EINVAL; /* Better than panicing */
3816 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3817 return EINVAL; /* Better than panicing */
3819 if (!(exporter = au->exporter)) {
3820 afs_PutUser(au, READ_LOCK);
3821 return EINVAL; /* Better than panicing */
3823 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3826 if (error == ENODEV)
3827 foundname = 0; /* sysname not set yet! */
3829 afs_PutUser(au, READ_LOCK);
3834 strcpy(outname, sysnamelist[0]);
3836 afs_PutUser(au, READ_LOCK);
3840 /* Not xlating, so local case */
3842 osi_Panic("PSetSysName: !afs_sysname\n");
3843 if (!setsysname) { /* user just wants the info */
3844 strcpy(outname, afs_sysname);
3845 foundname = afs_sysnamecount;
3846 sysnamelist = afs_sysnamelist;
3847 } else { /* Local guy; only root can change sysname */
3848 if (!afs_osi_suser(*acred))
3851 /* allpags makes no sense for local use */
3855 /* clear @sys entries from the dnlc, once afs_lookup can
3856 * do lookups of @sys entries and thinks it can trust them */
3857 /* privs ok, store the entry, ... */
3859 if (strlen(inname) >= MAXSYSNAME-1)
3861 strcpy(afs_sysname, inname);
3863 if (setsysname > 1) { /* ... or list */
3864 for (count = 1; count < setsysname; ++count) {
3865 if (!afs_sysnamelist[count])
3867 ("PSetSysName: no afs_sysnamelist entry to write\n");
3868 if (afs_pd_getString(ain, afs_sysnamelist[count],
3873 afs_sysnamecount = setsysname;
3878 if (afs_pd_putInt(aout, foundname) != 0)
3881 if (afs_pd_putString(aout, outname) != 0)
3883 for (count = 1; count < foundname; ++count) { /* ... or list. */
3884 if (!sysnamelist[count])
3886 ("PSetSysName: no afs_sysnamelist entry to read\n");
3887 t = strlen(sysnamelist[count]);
3888 if (t >= MAXSYSNAME)
3889 osi_Panic("PSetSysName: sysname entry garbled\n");
3890 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3898 /* sequential search through the list of touched cells is not a good
3899 * long-term solution here. For small n, though, it should be just
3900 * fine. Should consider special-casing the local cell for large n.
3901 * Likewise for PSetSPrefs.
3903 * s - number of ids in array l[] -- NOT index of last id
3904 * l - array of cell ids which have volumes that need to be sorted
3905 * vlonly - sort vl servers or file servers?
3908 ReSortCells_cb(struct cell *cell, void *arg)
3910 afs_int32 *p = (afs_int32 *) arg;
3911 afs_int32 *l = p + 1;
3914 for (i = 0; i < s; i++) {
3915 if (l[i] == cell->cellNum) {
3916 ObtainWriteLock(&cell->lock, 690);
3917 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3918 ReleaseWriteLock(&cell->lock);
3926 ReSortCells(int s, afs_int32 * l, int vlonly)
3934 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3935 osi_Assert(p != NULL);
3937 memcpy(p + 1, l, s * sizeof(afs_int32));
3938 afs_TraverseCells(&ReSortCells_cb, p);
3939 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3943 ObtainReadLock(&afs_xvolume);
3944 for (i = 0; i < NVOLS; i++) {
3945 for (j = afs_volumes[i]; j; j = j->next) {
3946 for (k = 0; k < s; k++)
3947 if (j->cell == l[k]) {
3948 ObtainWriteLock(&j->lock, 233);
3949 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3950 ReleaseWriteLock(&j->lock);
3955 ReleaseReadLock(&afs_xvolume);
3959 static int debugsetsp = 0;
3961 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3964 int i, j, k, matches, touchedSize;
3965 struct server *srvr = NULL;
3966 afs_int32 touched[34];
3970 for (k = 0; k < num; sp++, k++) {
3972 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3975 ObtainReadLock(&afs_xserver);
3977 i = SHash(sp->host.s_addr);
3978 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3979 if (sa->sa_ip == sp->host.s_addr) {
3981 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3982 || (sa->sa_portal == AFS_FSPORT);
3983 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3990 if (sa && matches) { /* found one! */
3992 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3994 sa->sa_iprank = sp->rank + afs_randomMod15();
3995 afs_SortOneServer(sa->server);
3998 /* if we don't know yet what cell it's in, this is moot */
3999 for (j = touchedSize - 1;
4000 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
4001 /* is it in our list of touched cells ? */ ;
4002 if (j < 0) { /* no, it's not */
4003 touched[touchedSize++] = srvr->cell->cellNum;
4004 if (touchedSize >= 32) { /* watch for ovrflow */
4005 ReleaseReadLock(&afs_xserver);
4006 ReSortCells(touchedSize, touched, vlonly);
4008 ObtainReadLock(&afs_xserver);
4014 ReleaseReadLock(&afs_xserver);
4015 /* if we didn't find one, start to create one. */
4016 /* Note that it doesn't have a cell yet... */
4018 afs_uint32 temp = sp->host.s_addr;
4020 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
4021 WRITE_LOCK, (afsUUID *) 0, 0, NULL);
4022 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
4023 afs_PutServer(srvr, WRITE_LOCK);
4025 } /* for all cited preferences */
4027 ReSortCells(touchedSize, touched, vlonly);
4032 * VIOC_SETPREFS (46) - Set server ranks
4034 * \param[in] ain the sprefs value you want the sprefs to be set to
4035 * \param[out] aout not in use
4038 * Error if the afs daemon hasn't started yet
4040 * Error if the user doesn't have super-user credentials
4042 * Error if the struct setsprefs is too large or if it multiplied
4043 * by the number of servers is too large
4045 * \post set the sprefs using the afs_setsprefs() function
4047 DECL_PIOCTL(PSetSPrefs)
4049 struct setspref *ssp;
4053 AFS_STATCNT(PSetSPrefs);
4055 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4056 return EIO; /* Inappropriate ioctl for device */
4058 if (!afs_osi_suser(*acred))
4061 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4062 * of arrays. But, i'm not quite brave enough to change it yet. */
4064 ainSize = ain->remaining;
4066 if (ainSize < sizeof(struct setspref))
4069 ssp = (struct setspref *)ainPtr;
4070 if (ainSize < (sizeof(struct setspref)
4071 + sizeof(struct spref) * (ssp->num_servers-1)))
4074 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4075 (ssp->flags & DBservers));
4080 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4082 * \param[in] ain the server preferences to be set
4083 * \param[out] aout not in use
4085 * \retval EIO Error if the afs daemon hasn't started yet
4086 * \retval EACCES Error if the user doesn't have super-user credentials
4088 * \post set the server preferences, calling a function
4090 * \notes this may only be performed by the local root user.
4092 DECL_PIOCTL(PSetSPrefs33)
4094 AFS_STATCNT(PSetSPrefs);
4095 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4096 return EIO; /* Inappropriate ioctl for device */
4099 if (!afs_osi_suser(*acred))
4102 afs_setsprefs((struct spref *)afs_pd_where(ain),
4103 afs_pd_remaining(ain) / sizeof(struct spref),
4109 * VIOC_GETSPREFS (43) - Get server ranks
4113 * \param[in] ain the server preferences to get
4114 * \param[out] aout the server preferences information
4116 * \retval EIO Error if the afs daemon hasn't started yet
4117 * \retval ENOENT Error if the sprefrequest is too large
4119 * \post Get the sprefs
4122 * in the hash table of server structs, all servers with the same
4123 * IP address; will be on the same overflow chain; This could be
4124 * sped slightly in some circumstances by having it cache the
4125 * immediately previous slot in the hash table and some
4126 * supporting information; Only reports file servers now.
4128 DECL_PIOCTL(PGetSPrefs)
4130 struct sprefrequest spin; /* input */
4131 struct sprefinfo *spout; /* output */
4132 struct spref *srvout; /* one output component */
4133 int i, j; /* counters for hash table traversal */
4134 struct server *srvr; /* one of CM's server structs */
4136 int vlonly; /* just return vlservers ? */
4139 AFS_STATCNT(PGetSPrefs);
4140 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4141 return EIO; /* Inappropriate ioctl for device */
4143 /* Work out from the size whether we've got a new, or old, style pioctl */
4144 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4145 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4150 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4152 vlonly = (spin.flags & DBservers);
4155 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4156 * quite brave enough to tackle it yet ...
4159 /* struct sprefinfo includes 1 server struct... that size gets added
4160 * in during the loop that follows.
4162 spout = afs_pd_inline(aout,
4163 sizeof(struct sprefinfo) - sizeof(struct spref));
4164 spout->next_offset = spin.offset;
4165 spout->num_servers = 0;
4166 srvout = spout->servers;
4168 ObtainReadLock(&afs_xserver);
4169 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4170 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4171 if (spin.offset > (unsigned short)i) {
4172 continue; /* catch up to where we left off */
4174 spout->next_offset++;
4177 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4178 || (sa->sa_portal == AFS_FSPORT);
4180 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4181 /* only report ranks for vl servers */
4185 /* Check we've actually got the space we're about to use */
4186 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4187 ReleaseReadLock(&afs_xserver); /* no more room! */
4191 srvout->host.s_addr = sa->sa_ip;
4192 srvout->rank = sa->sa_iprank;
4193 spout->num_servers++;
4197 ReleaseReadLock(&afs_xserver);
4199 spout->next_offset = 0; /* start over from the beginning next time */
4204 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4205 int afs_NFSRootOnly = 1;
4207 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4212 * an integer containing the desired exportee flags
4214 * an integer containing the current exporter flags
4216 * \retval ENODEV Error if the exporter doesn't exist
4217 * \retval EACCES Error if the user doesn't have super-user credentials
4220 * Changes the state of various values to reflect the change
4221 * of the export values between nfs and afs.
4223 * \notes Legacy code obtained from IBM.
4225 DECL_PIOCTL(PExportAfs)
4227 afs_int32 export, newint = 0;
4228 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4229 afs_int32 rempags = 0, pagcb = 0;
4230 struct afs_exporter *exporter;
4232 AFS_STATCNT(PExportAfs);
4233 if (afs_pd_getInt(ain, &handleValue) != 0)
4235 type = handleValue >> 24;
4240 exporter = exporter_find(type);
4242 export = handleValue & 3;
4243 changestate = handleValue & 0xfff;
4244 smounts = (handleValue >> 2) & 3;
4245 pwsync = (handleValue >> 4) & 3;
4246 convmode = (handleValue >> 6) & 3;
4247 rempags = (handleValue >> 8) & 3;
4248 pagcb = (handleValue >> 10) & 3;
4250 changestate = (handleValue >> 16) & 0x1;
4251 convmode = (handleValue >> 16) & 0x2;
4252 pwsync = (handleValue >> 16) & 0x4;
4253 smounts = (handleValue >> 16) & 0x8;
4254 export = handleValue & 0xff;
4257 /* Failed finding desired exporter; */
4261 handleValue = exporter->exp_states;
4262 if (afs_pd_putInt(aout, handleValue) != 0)
4265 if (!afs_osi_suser(*acred))
4266 return EACCES; /* Only superuser can do this */
4270 exporter->exp_states |= EXP_EXPORTED;
4272 exporter->exp_states &= ~EXP_EXPORTED;
4276 exporter->exp_states |= EXP_UNIXMODE;
4278 exporter->exp_states &= ~EXP_UNIXMODE;
4282 exporter->exp_states |= EXP_PWSYNC;
4284 exporter->exp_states &= ~EXP_PWSYNC;
4288 afs_NFSRootOnly = 0;
4289 exporter->exp_states |= EXP_SUBMOUNTS;
4291 afs_NFSRootOnly = 1;
4292 exporter->exp_states &= ~EXP_SUBMOUNTS;
4297 exporter->exp_states |= EXP_CLIPAGS;
4299 exporter->exp_states &= ~EXP_CLIPAGS;
4303 exporter->exp_states |= EXP_CALLBACK;
4305 exporter->exp_states &= ~EXP_CALLBACK;
4307 handleValue = exporter->exp_states;
4308 if (afs_pd_putInt(aout, handleValue) != 0)
4312 exporter->exp_states |= EXP_EXPORTED;
4314 exporter->exp_states &= ~EXP_EXPORTED;
4316 exporter->exp_states |= EXP_UNIXMODE;
4318 exporter->exp_states &= ~EXP_UNIXMODE;
4320 exporter->exp_states |= EXP_PWSYNC;
4322 exporter->exp_states &= ~EXP_PWSYNC;
4324 afs_NFSRootOnly = 0;
4325 exporter->exp_states |= EXP_SUBMOUNTS;
4327 afs_NFSRootOnly = 1;
4328 exporter->exp_states &= ~EXP_SUBMOUNTS;
4337 * VIOC_GAG (44) - Silence Cache Manager
4341 * \param[in] ain the flags to either gag or de-gag the cache manager
4342 * \param[out] aout not in use
4344 * \retval EACCES Error if the user doesn't have super-user credentials
4346 * \post set the gag flags, then show these flags
4350 struct gaginfo *gagflags;
4352 if (!afs_osi_suser(*acred))
4355 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4356 if (gagflags == NULL)
4358 afs_showflags = gagflags->showflags;
4364 * VIOC_TWIDDLE (45) - Adjust RX knobs
4368 * \param[in] ain the previous settings of the 'knobs'
4369 * \param[out] aout not in use
4371 * \retval EACCES Error if the user doesn't have super-user credentials
4373 * \post build out the struct rxp, from a struct rx
4375 DECL_PIOCTL(PTwiddleRx)
4377 struct rxparams *rxp;
4379 if (!afs_osi_suser(*acred))
4382 rxp = afs_pd_inline(ain, sizeof(*rxp));
4386 if (rxp->rx_initReceiveWindow)
4387 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4388 if (rxp->rx_maxReceiveWindow)
4389 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4390 if (rxp->rx_initSendWindow)
4391 rx_initSendWindow = rxp->rx_initSendWindow;
4392 if (rxp->rx_maxSendWindow)
4393 rx_maxSendWindow = rxp->rx_maxSendWindow;
4394 if (rxp->rxi_nSendFrags)
4395 rxi_nSendFrags = rxp->rxi_nSendFrags;
4396 if (rxp->rxi_nRecvFrags)
4397 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4398 if (rxp->rxi_OrphanFragSize)
4399 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4400 if (rxp->rx_maxReceiveSize) {
4401 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4402 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4404 if (rxp->rx_MyMaxSendSize)
4405 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4411 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4415 * \param[in] ain not in use
4416 * \param[out] aout initial cache manager params
4419 * Error if the initial parameters are bigger than some PIGGYSIZE
4421 * \post return the initial cache manager parameters
4423 DECL_PIOCTL(PGetInitParams)
4425 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4428 return afs_pd_putBytes(aout, &cm_initParams,
4429 sizeof(struct cm_initparams));
4432 #ifdef AFS_SGI65_ENV
4433 /* They took crget() from us, so fake it. */
4438 cr = crdup(get_current_cred());
4439 memset(cr, 0, sizeof(cred_t));
4440 #if CELL || CELL_PREPARE
4448 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4452 * \param[in] ain not in use
4453 * \param[out] aout value of cryptall
4455 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4457 DECL_PIOCTL(PGetRxkcrypt)
4459 return afs_pd_putInt(aout, cryptall);
4463 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4467 * \param[in] ain the argument whether or not things should be encrypted
4468 * \param[out] aout not in use
4471 * Error if the user doesn't have super-user credentials
4473 * Error if the input is too big, or if the input is outside the
4474 * bounds of what it can be set to
4476 * \post set whether or not things should be encrypted
4479 * may need to be modified at a later date to take into account
4480 * other values for cryptall (beyond true or false)
4482 DECL_PIOCTL(PSetRxkcrypt)
4486 if (!afs_osi_suser(*acred))
4488 if (afs_pd_getInt(ain, &tmpval) != 0)
4490 /* if new mappings added later this will need to be changed */
4491 if (tmpval != 0 && tmpval != 1)
4497 #ifdef AFS_NEED_CLIENTCONTEXT
4499 * Create new credentials to correspond to a remote user with given
4500 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4501 * provide pioctl (and other) services to foreign clients (i.e. nfs
4502 * clients) by using this call to `become' the client.
4505 #define PIOCTL_HEADER 6
4507 HandleClientContext(struct afs_ioctl *ablob, int *com,
4508 afs_ucred_t **acred, afs_ucred_t *credp)
4511 afs_uint32 hostaddr;
4512 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4513 struct afs_exporter *exporter, *outexporter;
4514 afs_ucred_t *newcred;
4515 struct unixuser *au;
4516 afs_uint32 comp = *com & 0xff00;
4518 #if defined(AFS_SUN510_ENV)
4522 #if defined(AFS_SGIMP_ENV)
4523 osi_Assert(ISAFS_GLOCK());
4525 AFS_STATCNT(HandleClientContext);
4526 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4527 /* Must at least include the PIOCTL_HEADER header words
4528 * required by the protocol */
4529 return EINVAL; /* Too small to be good */
4531 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4532 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4534 osi_FreeLargeSpace(inData);
4538 /* Extract information for remote user */
4539 hostaddr = *((afs_uint32 *) ain);
4540 ain += sizeof(hostaddr);
4541 uid = *((afs_uint32 *) ain);
4543 g0 = *((afs_uint32 *) ain);
4545 g1 = *((afs_uint32 *) ain);
4547 *com = *((afs_uint32 *) ain);
4548 ain += sizeof(afs_int32);
4549 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4552 * Of course, one must be root for most of these functions, but
4553 * we'll allow (for knfs) you to set things if the pag is 0 and
4554 * you're setting tokens or unlogging.
4557 if (!afs_osi_suser(credp)) {
4558 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4559 /* Since SGI's suser() returns explicit failure after the call.. */
4562 /* check for acceptable opcodes for normal folks, which are, so far,
4563 * get/set tokens, sysname, and unlog.
4565 if (i != 9 && i != 3 && i != 38 && i != 8) {
4566 osi_FreeLargeSpace(inData);
4571 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4572 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4573 osi_FreeLargeSpace(inData);
4576 * We map uid 0 to nobody to match the mapping that the nfs
4577 * server does and to ensure that the suser() calls in the afs
4578 * code fails for remote client roots.
4580 uid = afs_nobody; /* NFS_NOBODY == -2 */
4584 #ifdef AFS_AIX41_ENV
4587 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4588 #ifdef AFS_AIX51_ENV
4589 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4590 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4591 #elif defined(AFS_LINUX26_ENV)
4592 # ifdef AFS_LINUX26_ONEGROUP_ENV
4593 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4594 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4595 h = ((g0-0x3f00) >> 14);
4596 h = ((g1-0x3f00) >> 14) + h + h + h;
4597 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4599 afs_set_cr_group_info(newcred, groups_alloc(2));
4600 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4601 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4603 #elif defined(AFS_SUN510_ENV)
4606 crsetgroups(newcred, 2, gids);
4608 newcred->cr_groups[0] = g0;
4609 newcred->cr_groups[1] = g1;
4612 newcred->cr_ngrps = 2;
4613 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4614 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4615 newcred->cr_ngroups = 2;
4617 for (i = 2; i < NGROUPS; i++)
4618 newcred->cr_groups[i] = NOGROUP;
4621 if (!(exporter = exporter_find(exporter_type))) {
4622 /* Exporter wasn't initialized or an invalid exporter type */
4626 if (exporter->exp_states & EXP_PWSYNC) {
4627 if (uid != afs_cr_uid(credp)) {
4629 return ENOEXEC; /* XXX Find a better errno XXX */
4632 afs_set_cr_uid(newcred, uid); /* Only temporary */
4633 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4634 /* The client's pag is the only unique identifier for it */
4635 afs_set_cr_uid(newcred, pag);
4637 if (!code && *com == PSETPAG) {
4638 /* Special case for 'setpag' */
4639 afs_uint32 pagvalue = genpag();
4641 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4643 * Note that we leave the 'outexporter' struct held so it won't
4646 au->exporter = outexporter;
4647 if (ablob->out_size >= 4) {
4648 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4651 afs_PutUser(au, WRITE_LOCK);
4654 return PSETPAG; /* Special return for setpag */
4656 EXP_RELE(outexporter);
4659 *com = (*com) | comp;
4662 #endif /* AFS_NEED_CLIENTCONTEXT */
4666 * VIOC_GETCPREFS (50) - Get client interface
4670 * \param[in] ain sprefrequest input
4671 * \param[out] aout spref information
4673 * \retval EIO Error if the afs daemon hasn't started yet
4674 * \retval EINVAL Error if some of the standard args aren't set
4677 * get all interface addresses and other information of the client
4680 DECL_PIOCTL(PGetCPrefs)
4682 struct sprefrequest *spin; /* input */
4683 struct sprefinfo *spout; /* output */
4684 struct spref *srvout; /* one output component */
4688 AFS_STATCNT(PGetCPrefs);
4689 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4690 return EIO; /* Inappropriate ioctl for device */
4692 spin = afs_pd_inline(ain, sizeof(*spin));
4696 /* Output spout relies on writing past the end of arrays. It's horrible,
4697 * but I'm not quite brave enough to tackle it yet */
4698 spout = (struct sprefinfo *)aout->ptr;
4700 maxNumber = spin->num_servers; /* max addrs this time */
4701 srvout = spout->servers;
4703 ObtainReadLock(&afs_xinterface);
4705 /* copy out the client interface information from the
4706 * kernel data structure "interface" to the output buffer
4708 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4709 && (j < maxNumber); i++, j++, srvout++)
4710 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4712 spout->num_servers = j;
4713 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4715 if (i >= afs_cb_interface.numberOfInterfaces)
4716 spout->next_offset = 0; /* start from beginning again */
4718 spout->next_offset = spin->offset + j;
4720 ReleaseReadLock(&afs_xinterface);
4725 * VIOC_SETCPREFS (51) - Set client interface
4729 * \param[in] ain the interfaces you want set
4730 * \param[out] aout not in use
4732 * \retval EIO Error if the afs daemon hasn't started yet
4733 * \retval EINVAL Error if the input is too large for the struct
4734 * \retval ENOMEM Error if there are too many servers
4736 * \post set the callbak interfaces addresses to those of the hosts
4738 DECL_PIOCTL(PSetCPrefs)
4742 struct setspref *sin;
4745 AFS_STATCNT(PSetCPrefs);
4746 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4747 return EIO; /* Inappropriate ioctl for device */
4749 /* Yuck. Input to this function relies on reading past the end of
4750 * structures. Bodge it for now.
4753 ainSize = ain->remaining;
4755 sin = (struct setspref *)ainPtr;
4757 if (ainSize < sizeof(struct setspref))
4759 #if 0 /* num_servers is unsigned */
4760 if (sin->num_servers < 0)
4763 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4766 ObtainWriteLock(&afs_xinterface, 412);
4767 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4768 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4769 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4771 ReleaseWriteLock(&afs_xinterface);
4776 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4781 * the last part of a path to a mount point, which tells us what to flush
4786 * Error if some of the initial arguments aren't set
4788 * Error if the initial argument for the mount point isn't a directory
4790 * Error if the dcache entry isn't set
4793 * remove all of the mount data from the dcache regarding a
4794 * certain mount point
4796 DECL_PIOCTL(PFlushMount)
4801 struct VenusFid tfid;
4804 struct sysname_info sysState;
4805 afs_size_t offset, len;
4807 AFS_STATCNT(PFlushMount);
4811 if (afs_pd_getStringPtr(ain, &mount) != 0)
4814 code = afs_VerifyVCache(avc, areq);
4817 if (vType(avc) != VDIR) {
4820 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4823 Check_AtSys(avc, mount, &sysState, areq);
4824 ObtainReadLock(&tdc->lock);
4826 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4827 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4828 ReleaseReadLock(&tdc->lock);
4829 afs_PutDCache(tdc); /* we're done with the data */
4830 bufp = sysState.name;
4834 tfid.Cell = avc->f.fid.Cell;
4835 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4836 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4837 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4839 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4845 if (tvc->mvstat != 1) {
4850 ObtainWriteLock(&tvc->lock, 649);
4851 ObtainWriteLock(&afs_xcbhash, 650);
4852 afs_DequeueCallback(tvc);
4853 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4854 ReleaseWriteLock(&afs_xcbhash);
4855 /* now find the disk cache entries */
4856 afs_TryToSmush(tvc, *acred, 1);
4857 osi_dnlc_purgedp(tvc);
4858 if (tvc->linkData && !(tvc->f.states & CCore)) {
4859 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4860 tvc->linkData = NULL;
4862 ReleaseWriteLock(&tvc->lock);
4865 if (sysState.allocked)
4866 osi_FreeLargeSpace(bufp);
4871 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4875 * \param[in] ain the flags that control which stats to use
4876 * \param[out] aout not in use
4878 * \retval EACCES Error if the user doesn't have super-user credentials
4879 * \retval EINVAL Error if the flag input is too long
4882 * either enable process RPCStats, disable process RPCStats,
4883 * or clear the process RPCStats
4885 DECL_PIOCTL(PRxStatProc)
4889 if (!afs_osi_suser(*acred))
4892 if (afs_pd_getInt(ain, &flags) != 0)
4895 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4898 if (flags & AFSCALL_RXSTATS_ENABLE) {
4899 rx_enableProcessRPCStats();
4901 if (flags & AFSCALL_RXSTATS_DISABLE) {
4902 rx_disableProcessRPCStats();
4904 if (flags & AFSCALL_RXSTATS_CLEAR) {
4905 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4912 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4916 * \param[in] ain the flags that control which statistics to use
4917 * \param[out] aout not in use
4919 * \retval EACCES Error if the user doesn't have super-user credentials
4920 * \retval EINVAL Error if the flag input is too long
4923 * either enable peer RPCStatws, disable peer RPCStats,
4924 * or clear the peer RPCStats
4926 DECL_PIOCTL(PRxStatPeer)
4930 if (!afs_osi_suser(*acred))
4933 if (afs_pd_getInt(ain, &flags) != 0)
4936 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4939 if (flags & AFSCALL_RXSTATS_ENABLE) {
4940 rx_enablePeerRPCStats();
4942 if (flags & AFSCALL_RXSTATS_DISABLE) {
4943 rx_disablePeerRPCStats();
4945 if (flags & AFSCALL_RXSTATS_CLEAR) {
4946 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4951 DECL_PIOCTL(PPrefetchFromTape)
4955 struct afs_conn *tc;
4956 struct rx_call *tcall;
4957 struct AFSVolSync tsync;
4958 struct AFSFetchStatus OutStatus;
4959 struct AFSCallBack CallBack;
4960 struct VenusFid tfid;
4963 struct rx_connection *rxconn;
4965 AFS_STATCNT(PPrefetchFromTape);
4969 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4971 Fid = &avc->f.fid.Fid;
4973 tfid.Cell = avc->f.fid.Cell;
4974 tfid.Fid.Volume = Fid->Volume;
4975 tfid.Fid.Vnode = Fid->Vnode;
4976 tfid.Fid.Unique = Fid->Unique;
4978 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4980 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4981 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4984 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4985 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4988 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
4992 tcall = rx_NewCall(rxconn);
4994 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4997 rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
4999 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
5001 code = rx_EndCall(tcall, code);
5005 } while (afs_Analyze
5006 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
5007 SHARED_LOCK, NULL));
5008 /* This call is done only to have the callback things handled correctly */
5009 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
5015 return afs_pd_putInt(aout, outval);
5021 struct afs_conn *tc;
5023 struct FsCmdInputs *Inputs;
5024 struct FsCmdOutputs *Outputs;
5025 struct VenusFid tfid;
5027 struct rx_connection *rxconn;
5032 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
5036 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
5037 if (Outputs == NULL)
5042 Fid = &avc->f.fid.Fid;
5044 tfid.Cell = avc->f.fid.Cell;
5045 tfid.Fid.Volume = Fid->Volume;
5046 tfid.Fid.Vnode = Fid->Vnode;
5047 tfid.Fid.Unique = Fid->Unique;
5049 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5050 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5051 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5055 if (Inputs->command) {
5057 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5061 RXAFS_FsCmd(rxconn, Fid, Inputs,
5062 (struct FsCmdOutputs *)aout);
5066 } while (afs_Analyze
5067 (tc, rxconn, code, &tvc->f.fid, areq,
5068 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5069 /* This call is done to have the callback things handled correctly */
5070 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5071 } else { /* just a status request, return also link data */
5073 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5074 Outputs->chars[0] = 0;
5075 if (vType(tvc) == VLNK) {
5076 ObtainWriteLock(&tvc->lock, 555);
5077 if (afs_HandleLink(tvc, areq) == 0)
5078 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5079 ReleaseWriteLock(&tvc->lock);
5088 DECL_PIOCTL(PNewUuid)
5090 /*AFS_STATCNT(PNewUuid); */
5091 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5092 return EIO; /* Inappropriate ioctl for device */
5094 if (!afs_osi_suser(*acred))
5097 ObtainWriteLock(&afs_xinterface, 555);
5098 afs_uuid_create(&afs_cb_interface.uuid);
5099 ReleaseWriteLock(&afs_xinterface);
5100 ForceAllNewConnections();
5104 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5106 DECL_PIOCTL(PSetCachingThreshold)
5108 afs_int32 getting = 1;
5109 afs_int32 setting = 1;
5110 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5112 if (afs_pd_getInt(ain, &threshold) != 0)
5118 if (setting == 0 && getting == 0)
5122 * If setting, set first, and return the value now in effect
5125 if (!afs_osi_suser(*acred))
5127 cache_bypass_threshold = threshold;
5128 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5129 /* TODO: move to separate pioctl, or enhance pioctl */
5130 if (threshold == AFS_CACHE_BYPASS_DISABLED)
5131 cache_bypass_strategy = NEVER_BYPASS_CACHE;
5132 else if (!threshold)
5133 cache_bypass_strategy = ALWAYS_BYPASS_CACHE;
5135 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5138 /* Return the current size threshold */
5140 return afs_pd_putInt(aout, cache_bypass_threshold);
5145 #endif /* defined(AFS_CACHE_BYPASS) */
5147 DECL_PIOCTL(PCallBackAddr)
5150 afs_uint32 addr, code;
5154 struct afs_conn *tc;
5156 struct unixuser *tu;
5157 struct srvAddr **addrs;
5158 struct rx_connection *rxconn;
5160 /*AFS_STATCNT(PCallBackAddr); */
5161 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5162 return EIO; /* Inappropriate ioctl for device */
5164 if (!afs_osi_suser(acred))
5167 if (afs_pd_getInt(ain, &addr) != 0)
5170 ObtainReadLock(&afs_xinterface);
5171 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5172 if (afs_cb_interface.addr_in[i] == addr)
5176 ReleaseWriteLock(&afs_xinterface);
5178 if (afs_cb_interface.addr_in[i] != addr)
5181 ObtainReadLock(&afs_xserver); /* Necessary? */
5182 ObtainReadLock(&afs_xsrvAddr);
5185 for (i = 0; i < NSERVERS; i++) {
5186 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5191 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5192 osi_Assert(addrs != NULL);
5194 for (i = 0; i < NSERVERS; i++) {
5195 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5196 if (j >= srvAddrCount)
5202 ReleaseReadLock(&afs_xsrvAddr);
5203 ReleaseReadLock(&afs_xserver);
5205 for (i = 0; i < j; i++) {
5211 /* vlserver has no callback conn */
5212 if (sa->sa_portal == AFS_VLPORT) {
5216 if (!ts->cell) /* not really an active server, anyway, it must */
5217 continue; /* have just been added by setsprefs */
5219 /* get a connection, even if host is down; bumps conn ref count */
5220 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5221 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5222 1 /*force */ , 1 /*create */ , SHARED_LOCK, 0, &rxconn);
5223 afs_PutUser(tu, SHARED_LOCK);
5227 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5228 if (sa->sa_flags & SRVADDR_ISDOWN) {
5229 rx_SetConnDeadTime(rxconn, 3);
5231 #ifdef RX_ENABLE_LOCKS
5233 #endif /* RX_ENABLE_LOCKS */
5234 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5235 #ifdef RX_ENABLE_LOCKS
5237 #endif /* RX_ENABLE_LOCKS */
5239 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5240 } /* Outer loop over addrs */
5241 #endif /* UKERNEL */
5245 DECL_PIOCTL(PDiscon)
5247 static afs_int32 mode = 1; /* Start up in 'off' */
5248 afs_int32 force = 0;
5251 struct vrequest lreq;
5253 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5254 if (!afs_osi_suser(*acred))
5258 mode = flags[0] - 1;
5260 afs_ConflictPolicy = flags[1] - 1;
5264 /* Fake InitReq support for UID override */
5265 memset(&lreq, 0, sizeof(lreq));
5266 lreq.uid = flags[3];
5267 areq = &lreq; /* override areq we got */
5271 * All of these numbers are hard coded in fs.c. If they
5272 * change here, they should change there and vice versa
5275 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5276 if (!AFS_IS_DISCONNECTED) {
5277 ObtainWriteLock(&afs_discon_lock, 999);
5278 afs_DisconGiveUpCallbacks();
5279 afs_RemoveAllConns();
5280 afs_is_disconnected = 1;
5281 afs_is_discon_rw = 1;
5282 ReleaseWriteLock(&afs_discon_lock);
5285 case 1: /* Fully connected, ("online" mode). */
5286 ObtainWriteLock(&afs_discon_lock, 998);
5289 afs_MarkAllServersUp();
5290 code = afs_ResyncDisconFiles(areq, *acred);
5293 if (code && !force) {
5294 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5295 "Please retry or use \"force\".\n");
5299 afs_DisconDiscardAll(*acred);
5301 afs_ClearAllStatdFlag();
5302 afs_is_disconnected = 0;
5303 afs_is_discon_rw = 0;
5304 afs_warnuser("\nSync succeeded. You are back online.\n");
5307 ReleaseWriteLock(&afs_discon_lock);
5319 return afs_pd_putInt(aout, mode);
5322 #define MAX_PIOCTL_TOKENS 10
5324 DECL_PIOCTL(PSetTokens2)
5327 int i, cellNum, primaryFlag;
5329 struct unixuser *tu;
5330 struct vrequest *treq = NULL;
5331 struct ktc_setTokenData tokenSet;
5332 struct ktc_tokenUnion decodedToken;
5334 memset(&tokenSet, 0, sizeof(tokenSet));
5336 AFS_STATCNT(PSetTokens2);
5337 if (!afs_resourceinit_flag)
5340 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5342 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5343 afs_pd_xdrEnd(ain, &xdrs);
5347 afs_pd_xdrEnd(ain, &xdrs);
5349 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5350 * process from using up the whole of the kernel memory by allocating
5353 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5354 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5358 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5360 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5364 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5365 #if defined(AFS_LINUX26_ENV)
5366 afs_ucred_t *old_cred = *acred;
5368 if (_settok_setParentPag(acred) == 0) {
5369 #if defined(AFS_LINUX26_ENV)
5370 /* setpag() may have changed our credentials */
5374 code = afs_CreateReq(&treq, *acred);
5376 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5383 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5384 /* Free any tokens that we've already got */
5385 afs_FreeTokens(&tu->tokens);
5387 /* Iterate across the set of tokens we've received, and stuff them
5388 * into this user's tokenJar
5390 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5391 xdrmem_create(&xdrs,
5392 tokenSet.tokens.tokens_val[i].token_opaque_val,
5393 tokenSet.tokens.tokens_val[i].token_opaque_len,
5396 memset(&decodedToken, 0, sizeof(decodedToken));
5397 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5405 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5406 /* This is untidy - the old token interface supported passing
5407 * the primaryFlag as part of the token interface. Current
5408 * OpenAFS userland never sets this, but it's specified as being
5409 * part of the XG interface, so we should probably still support
5410 * it. Rather than add it to our AddToken interface, just handle
5413 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5414 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5418 /* XXX - We should think more about destruction here. It's likely that
5419 * there is key material in what we're about to throw away, which
5420 * we really should zero out before giving back to the allocator */
5421 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5424 tu->states |= UHasTokens;
5425 tu->states &= ~UTokensBad;
5426 afs_SetPrimary(tu, primaryFlag);
5427 tu->tokenTime = osi_Time();
5429 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5432 afs_ResetUserConns(tu);
5433 afs_PutUser(tu, WRITE_LOCK);
5434 afs_DestroyReq(treq);
5439 DECL_PIOCTL(PGetTokens2)
5441 struct cell *cell = NULL;
5442 struct unixuser *tu = NULL;
5444 char *cellName = NULL;
5449 struct ktc_setTokenData tokenSet;
5451 AFS_STATCNT(PGetTokens);
5452 if (!afs_resourceinit_flag)
5455 memset(&tokenSet, 0, sizeof(tokenSet));
5457 /* No input data - return tokens for primary cell */
5458 /* 4 octets of data is an iterator count */
5459 /* Otherwise, treat as string & return tokens for that cell name */
5461 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5462 /* Integer iterator - return tokens for the n'th cell found for user */
5463 if (afs_pd_getInt(ain, &iterator) != 0)
5465 tu = getNthCell(areq->uid, iterator);
5467 if (afs_pd_remaining(ain) > 0) {
5468 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5473 code = _settok_tokenCell(cellName, &cellNum, NULL);
5476 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5483 if (!(tu->states & UHasTokens)
5484 || !afs_HasValidTokens(tu->tokens, now)) {
5485 tu->states |= (UTokensBad | UNeedsReset);
5486 afs_PutUser(tu, READ_LOCK);
5490 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5494 cell = afs_GetCell(tu->cell, READ_LOCK);
5495 tokenSet.cell = cell->cellName;
5496 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5497 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5501 afs_pd_xdrEnd(aout, &xdrs);
5504 tokenSet.cell = NULL;
5507 afs_PutUser(tu, READ_LOCK);
5509 afs_PutCell(cell, READ_LOCK);
5510 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5515 DECL_PIOCTL(PNFSNukeCreds)
5519 struct unixuser *tu;
5521 AFS_STATCNT(PUnlog);
5522 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5523 return EIO; /* Inappropriate ioctl for device */
5525 if (afs_pd_getUint(ain, &addr) != 0)
5528 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5529 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5530 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5531 afs_PutUser(tu, SHARED_LOCK);
5534 afs_PutUser(tu, SHARED_LOCK);
5535 } else if (!afs_osi_suser(acred)) {
5539 ObtainWriteLock(&afs_xuser, 227);
5540 for (i = 0; i < NUSERS; i++) {
5541 for (tu = afs_users[i]; tu; tu = tu->next) {
5542 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5544 ReleaseWriteLock(&afs_xuser);
5546 afs_LockUser(tu, WRITE_LOCK, 367);
5548 tu->states &= ~UHasTokens;
5549 afs_FreeTokens(&tu->tokens);
5550 afs_ResetUserConns(tu);
5551 afs_PutUser(tu, WRITE_LOCK);
5552 ObtainWriteLock(&afs_xuser, 228);
5554 /* set the expire times to 0, causes
5555 * afs_GCUserData to remove this entry
5558 #endif /* UKERNEL */
5562 ReleaseWriteLock(&afs_xuser);