2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include "afs/param.h"
14 #include "afs/sysincludes.h" /* Standard vendor system headers */
16 #include "h/syscallargs.h"
19 #include "h/sysproto.h"
22 #include <sys/ioctl.h>
23 #include <sys/ioccom.h>
25 #include "afsincludes.h" /* Afs-based standard headers */
26 #include "afs/afs_stats.h" /* afs statistics */
28 #include "afs/afs_bypasscache.h"
29 #include "rx/rx_globals.h"
32 struct VenusFid afs_rootFid;
33 afs_int32 afs_waitForever = 0;
34 short afs_waitForeverCount = 0;
35 afs_int32 afs_showflags = GAGUSER | GAGCONSOLE; /* show all messages */
37 afs_int32 afs_is_disconnected;
38 afs_int32 afs_is_discon_rw;
39 /* On reconnection, turn this knob on until it finishes,
42 afs_int32 afs_in_sync = 0;
50 * A set of handy little functions for encoding and decoding
51 * pioctls without losing your marbles, or memory integrity
55 afs_pd_alloc(struct afs_pdata *apd, size_t size)
58 if (size > AFS_LRALLOCSIZ)
59 apd->ptr = osi_Alloc(size + 1);
61 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
66 apd->remaining = size;
72 afs_pd_free(struct afs_pdata *apd)
77 if (apd->remaining > AFS_LRALLOCSIZ)
78 osi_Free(apd->ptr, apd->remaining + 1);
80 osi_FreeLargeSpace(apd->ptr);
87 afs_pd_where(struct afs_pdata *apd)
89 return apd ? apd->ptr : NULL;
93 afs_pd_remaining(struct afs_pdata *apd)
95 return apd ? apd->remaining : 0;
99 afs_pd_skip(struct afs_pdata *apd, size_t skip)
101 if (apd == NULL || apd->remaining < skip)
103 apd->remaining -= skip;
110 afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
112 if (apd == NULL || apd->remaining < bytes)
114 apd->remaining -= bytes;
115 memcpy(dest, apd->ptr, bytes);
121 afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
123 return afs_pd_getBytes(apd, val, sizeof(*val));
127 afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
129 return afs_pd_getBytes(apd, val, sizeof(*val));
133 afs_pd_inline(struct afs_pdata *apd, size_t bytes)
137 if (apd == NULL || apd->remaining < bytes)
142 apd->remaining -= bytes;
149 afs_pd_xdrStart(struct afs_pdata *apd, XDR *xdrs, enum xdr_op op) {
150 xdrmem_create(xdrs, apd->ptr, apd->remaining, op);
154 afs_pd_xdrEnd(struct afs_pdata *apd, XDR *xdrs) {
157 pos = xdr_getpos(xdrs);
159 apd->remaining -= pos;
166 afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
170 if (apd == NULL || apd->remaining <= 0)
172 len = strlen(apd->ptr) + 1;
175 memcpy(str, apd->ptr, len);
177 apd->remaining -= len;
182 afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
186 if (apd == NULL || apd->remaining <= 0)
188 len = strlen(apd->ptr) + 1;
191 apd->remaining -= len;
196 afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
198 if (apd == NULL || apd->remaining < len)
200 memcpy(apd->ptr, bytes, len);
202 apd->remaining -= len;
207 afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
209 return afs_pd_putBytes(apd, &val, sizeof(val));
213 afs_pd_putString(struct afs_pdata *apd, char *str) {
215 /* Add 1 so we copy the NULL too */
216 return afs_pd_putBytes(apd, str, strlen(str) +1);
220 * \defgroup pioctl Path IOCTL functions
222 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
225 * the AFS vcache structure in use by pioctl
229 * the AFS vrequest structure
231 * an afs_pdata block describing the data received from the caller
233 * an afs_pdata block describing a pre-allocated block for output
235 * UNIX credentials structure underlying the operation
238 #define DECL_PIOCTL(x) \
239 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
240 struct afs_pdata *ain, struct afs_pdata *aout, \
243 /* Prototypes for pioctl routines */
244 DECL_PIOCTL(PGetFID);
245 DECL_PIOCTL(PSetAcl);
246 DECL_PIOCTL(PStoreBehind);
247 DECL_PIOCTL(PGCPAGs);
248 DECL_PIOCTL(PGetAcl);
251 DECL_PIOCTL(PGetFileCell);
252 DECL_PIOCTL(PGetWSCell);
253 DECL_PIOCTL(PGetUserCell);
254 DECL_PIOCTL(PSetTokens);
255 DECL_PIOCTL(PSetTokens2);
256 DECL_PIOCTL(PGetVolumeStatus);
257 DECL_PIOCTL(PSetVolumeStatus);
259 DECL_PIOCTL(PNewStatMount);
260 DECL_PIOCTL(PGetTokens);
261 DECL_PIOCTL(PGetTokens2);
263 DECL_PIOCTL(PMariner);
264 DECL_PIOCTL(PCheckServers);
265 DECL_PIOCTL(PCheckVolNames);
266 DECL_PIOCTL(PCheckAuth);
267 DECL_PIOCTL(PFindVolume);
268 DECL_PIOCTL(PViceAccess);
269 DECL_PIOCTL(PSetCacheSize);
270 DECL_PIOCTL(PGetCacheSize);
271 DECL_PIOCTL(PRemoveCallBack);
272 DECL_PIOCTL(PNewCell);
273 DECL_PIOCTL(PNewAlias);
274 DECL_PIOCTL(PListCells);
275 DECL_PIOCTL(PListAliases);
276 DECL_PIOCTL(PRemoveMount);
277 DECL_PIOCTL(PGetCellStatus);
278 DECL_PIOCTL(PSetCellStatus);
279 DECL_PIOCTL(PFlushVolumeData);
280 DECL_PIOCTL(PGetVnodeXStatus);
281 DECL_PIOCTL(PGetVnodeXStatus2);
282 DECL_PIOCTL(PSetSysName);
283 DECL_PIOCTL(PSetSPrefs);
284 DECL_PIOCTL(PSetSPrefs33);
285 DECL_PIOCTL(PGetSPrefs);
286 DECL_PIOCTL(PExportAfs);
288 DECL_PIOCTL(PTwiddleRx);
289 DECL_PIOCTL(PGetInitParams);
290 DECL_PIOCTL(PGetRxkcrypt);
291 DECL_PIOCTL(PSetRxkcrypt);
292 DECL_PIOCTL(PGetCPrefs);
293 DECL_PIOCTL(PSetCPrefs);
294 DECL_PIOCTL(PFlushMount);
295 DECL_PIOCTL(PRxStatProc);
296 DECL_PIOCTL(PRxStatPeer);
297 DECL_PIOCTL(PPrefetchFromTape);
299 DECL_PIOCTL(PCallBackAddr);
300 DECL_PIOCTL(PDiscon);
301 DECL_PIOCTL(PNFSNukeCreds);
302 DECL_PIOCTL(PNewUuid);
303 DECL_PIOCTL(PPrecache);
304 DECL_PIOCTL(PGetPAG);
305 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
306 DECL_PIOCTL(PSetCachingThreshold);
310 * A macro that says whether we're going to need HandleClientContext().
311 * This is currently used only by the nfs translator.
313 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
314 #define AFS_NEED_CLIENTCONTEXT
317 /* Prototypes for private routines */
318 #ifdef AFS_NEED_CLIENTCONTEXT
319 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
323 int HandleIoctl(struct vcache *avc, afs_int32 acom,
324 struct afs_ioctl *adata);
325 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
326 struct afs_ioctl *ablob, int afollow,
327 afs_ucred_t **acred);
328 static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
331 typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
332 struct afs_pdata *, struct afs_pdata *,
335 static pioctlFunction VpioctlSw[] = {
340 PGetVolumeStatus, /* 4 */
341 PSetVolumeStatus, /* 5 */
346 PCheckServers, /* 10 */
347 PCheckVolNames, /* 11 */
349 PBogus, /* 13 -- used to be quick check time */
350 PFindVolume, /* 14 */
351 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
352 PBogus, /* 16 -- used to be testing code */
353 PNoop, /* 17 -- used to be enable group */
354 PNoop, /* 18 -- used to be disable group */
355 PBogus, /* 19 -- used to be list group */
356 PViceAccess, /* 20 */
357 PUnlog, /* 21 -- unlog *is* unpag in this system */
358 PGetFID, /* 22 -- get file ID */
359 PBogus, /* 23 -- used to be waitforever */
360 PSetCacheSize, /* 24 */
361 PRemoveCallBack, /* 25 -- flush only the callback */
364 PRemoveMount, /* 28 -- delete mount point */
365 PNewStatMount, /* 29 -- new style mount point stat */
366 PGetFileCell, /* 30 -- get cell name for input file */
367 PGetWSCell, /* 31 -- get cell name for workstation */
368 PMariner, /* 32 - set/get mariner host */
369 PGetUserCell, /* 33 -- get cell name for user */
370 PBogus, /* 34 -- Enable/Disable logging */
371 PGetCellStatus, /* 35 */
372 PSetCellStatus, /* 36 */
373 PFlushVolumeData, /* 37 -- flush all data from a volume */
374 PSetSysName, /* 38 - Set system name */
375 PExportAfs, /* 39 - Export Afs to remote nfs clients */
376 PGetCacheSize, /* 40 - get cache size and usage */
377 PGetVnodeXStatus, /* 41 - get vcache's special status */
378 PSetSPrefs33, /* 42 - Set CM Server preferences... */
379 PGetSPrefs, /* 43 - Get CM Server preferences... */
380 PGag, /* 44 - turn off/on all CM messages */
381 PTwiddleRx, /* 45 - adjust some RX params */
382 PSetSPrefs, /* 46 - Set CM Server preferences... */
383 PStoreBehind, /* 47 - set degree of store behind to be done */
384 PGCPAGs, /* 48 - disable automatic pag gc-ing */
385 PGetInitParams, /* 49 - get initial cm params */
386 PGetCPrefs, /* 50 - get client interface addresses */
387 PSetCPrefs, /* 51 - set client interface addresses */
388 PFlushMount, /* 52 - flush mount symlink data */
389 PRxStatProc, /* 53 - control process RX statistics */
390 PRxStatPeer, /* 54 - control peer RX statistics */
391 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
392 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
393 PBogus, /* 57 -- arla: set file prio */
394 PBogus, /* 58 -- arla: fallback getfh */
395 PBogus, /* 59 -- arla: fallback fhopen */
396 PBogus, /* 60 -- arla: controls xfsdebug */
397 PBogus, /* 61 -- arla: controls arla debug */
398 PBogus, /* 62 -- arla: debug interface */
399 PBogus, /* 63 -- arla: print xfs status */
400 PBogus, /* 64 -- arla: force cache check */
401 PBogus, /* 65 -- arla: break callback */
402 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
403 PFsCmd, /* 67 -- RXOSD: generic commnd interface */
404 PBogus, /* 68 -- arla: fetch stats */
405 PGetVnodeXStatus2, /* 69 - get caller access and some vcache status */
408 static pioctlFunction CpioctlSw[] = {
410 PNewAlias, /* 1 -- create new cell alias */
411 PListAliases, /* 2 -- list cell aliases */
412 PCallBackAddr, /* 3 -- request addr for callback rxcon */
414 PDiscon, /* 5 -- get/set discon mode */
425 static pioctlFunction OpioctlSw[] = {
427 PNFSNukeCreds, /* 1 -- nuke all creds for NFS client */
428 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
429 PSetCachingThreshold /* 2 -- get/set cache-bypass size threshold */
431 PNoop /* 2 -- get/set cache-bypass size threshold */
435 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
436 int afs_nobody = NFS_NOBODY;
439 HandleIoctl(struct vcache *avc, afs_int32 acom,
440 struct afs_ioctl *adata)
445 AFS_STATCNT(HandleIoctl);
447 switch (acom & 0xff) {
449 avc->f.states |= CSafeStore;
451 /* SXW - Should we force a MetaData flush for this flag setting */
454 /* case 2 used to be abort store, but this is no longer provided,
455 * since it is impossible to implement under normal Unix.
459 /* return the name of the cell this file is open on */
463 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
465 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
467 if (i > adata->out_size) {
468 /* 0 means we're not interested in the output */
469 if (adata->out_size != 0)
473 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
475 afs_PutCell(tcell, READ_LOCK);
481 case 49: /* VIOC_GETINITPARAMS */
482 if (adata->out_size < sizeof(struct cm_initparams)) {
485 AFS_COPYOUT(&cm_initParams, adata->out,
486 sizeof(struct cm_initparams), code);
498 return code; /* so far, none implemented */
502 /* For aix we don't temporarily bypass ioctl(2) but rather do our
503 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
504 * is now called from afs_gn_ioctl.
507 afs_ioctl(struct vcache *tvc, int cmd, int arg)
509 struct afs_ioctl data;
512 AFS_STATCNT(afs_ioctl);
513 if (((cmd >> 8) & 0xff) == 'V') {
514 /* This is a VICEIOCTL call */
515 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
518 error = HandleIoctl(tvc, cmd, &data);
521 /* No-op call; just return. */
525 # if defined(AFS_AIX32_ENV)
526 # if defined(AFS_AIX51_ENV)
529 kioctl(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
531 # else /* __64BIT__ */
533 kioctl32(int fdes, int com, caddr_t arg, caddr_t ext, caddr_t arg2,
535 # endif /* __64BIT__ */
538 kioctl(int fdes, int com, caddr_t arg, caddr_t ext)
539 # endif /* AFS_AIX51_ENV */
544 # ifdef AFS_AIX51_ENV
547 } u_uap, *uap = &u_uap;
550 int ioctlDone = 0, code = 0;
552 AFS_STATCNT(afs_xioctl);
556 # ifdef AFS_AIX51_ENV
560 if (setuerror(getf(uap->fd, &fd))) {
563 if (fd->f_type == DTYPE_VNODE) {
564 /* good, this is a vnode; next see if it is an AFS vnode */
565 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
566 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
567 /* This is an AFS vnode */
568 if (((uap->com >> 8) & 0xff) == 'V') {
569 struct afs_ioctl *datap;
572 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
573 code=copyin_afs_ioctl((char *)uap->arg, datap);
575 osi_FreeSmallSpace(datap);
577 # if defined(AFS_AIX41_ENV)
580 return (setuerror(code), code);
582 code = HandleIoctl(tvc, uap->com, datap);
583 osi_FreeSmallSpace(datap);
586 # if defined(AFS_AIX41_ENV)
593 # if defined(AFS_AIX41_ENV)
595 # if defined(AFS_AIX51_ENV)
597 code = okioctl(fdes, com, arg, ext, arg2, arg3);
598 # else /* __64BIT__ */
599 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
600 # endif /* __64BIT__ */
601 # else /* !AFS_AIX51_ENV */
602 code = okioctl(fdes, com, arg, ext);
603 # endif /* AFS_AIX51_ENV */
605 # elif defined(AFS_AIX32_ENV)
606 okioctl(fdes, com, arg, ext);
609 # if defined(KERNEL_HAVE_UERROR)
612 # if !defined(AFS_AIX41_ENV)
613 return (getuerror()? -1 : u.u_ioctlrv);
615 return getuerror()? -1 : 0;
622 #elif defined(AFS_SGI_ENV)
623 # if defined(AFS_SGI65_ENV)
624 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
625 rval_t * rvalp, struct vopbd * vbds)
627 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
628 rval_t * rvalp, struct vopbd * vbds)
631 struct afs_ioctl data;
637 AFS_STATCNT(afs_ioctl);
638 if (((cmd >> 8) & 0xff) == 'V') {
639 /* This is a VICEIOCTL call */
640 error = copyin_afs_ioctl(arg, &data);
643 locked = ISAFS_GLOCK();
646 error = HandleIoctl(tvc, cmd, &data);
651 /* No-op call; just return. */
655 #elif defined(AFS_SUN5_ENV)
656 struct afs_ioctl_sys {
663 afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
667 int ioctlDone = 0, code = 0;
669 AFS_STATCNT(afs_xioctl);
670 # if defined(AFS_SUN57_ENV)
674 # elif defined(AFS_SUN54_ENV)
679 if (code = getf(uap->fd, &fd)) {
683 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
684 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
685 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
686 /* This is an AFS vnode */
687 if (((uap->com >> 8) & 0xff) == 'V') {
688 struct afs_ioctl *datap;
691 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
692 code=copyin_afs_ioctl((char *)uap->arg, datap);
694 osi_FreeSmallSpace(datap);
696 # if defined(AFS_SUN54_ENV)
703 code = HandleIoctl(tvc, uap->com, datap);
704 osi_FreeSmallSpace(datap);
710 # if defined(AFS_SUN57_ENV)
712 # elif defined(AFS_SUN54_ENV)
718 code = ioctl(uap, rvp);
722 #elif defined(AFS_LINUX22_ENV)
723 struct afs_ioctl_sys {
728 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
731 struct afs_ioctl_sys ua, *uap = &ua;
735 AFS_STATCNT(afs_xioctl);
740 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
741 /* This is an AFS vnode */
742 if (((uap->com >> 8) & 0xff) == 'V') {
743 struct afs_ioctl *datap;
745 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
746 code = copyin_afs_ioctl((char *)uap->arg, datap);
748 osi_FreeSmallSpace(datap);
752 code = HandleIoctl(tvc, uap->com, datap);
753 osi_FreeSmallSpace(datap);
761 #elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
769 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
773 int ioctlDone = 0, code = 0;
775 AFS_STATCNT(afs_xioctl);
776 if ((code = fdgetf(p, uap->fd, &fd)))
778 if (fd->f_type == DTYPE_VNODE) {
779 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
780 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
781 /* This is an AFS vnode */
782 if (((uap->com >> 8) & 0xff) == 'V') {
783 struct afs_ioctl *datap;
785 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
786 code = copyin_afs_ioctl((char *)uap->arg, datap);
788 osi_FreeSmallSpace(datap);
792 code = HandleIoctl(tvc, uap->com, datap);
793 osi_FreeSmallSpace(datap);
801 return ioctl(p, uap, retval);
805 #elif defined(AFS_XBSD_ENV)
806 # if defined(AFS_FBSD_ENV)
809 afs_xioctl(struct thread *td, struct ioctl_args *uap,
812 afs_proc_t *p = td->td_proc;
821 afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
824 struct filedesc *fdp;
826 int ioctlDone = 0, code = 0;
829 AFS_STATCNT(afs_xioctl);
830 # if defined(AFS_NBSD40_ENV)
831 fdp = p->l_proc->p_fd;
835 if ((u_int) uap->fd >= fdp->fd_nfiles
836 || (fd = fdp->fd_ofiles[uap->fd]) == NULL)
838 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
840 /* first determine whether this is any sort of vnode */
841 if (fd->f_type == DTYPE_VNODE) {
842 /* good, this is a vnode; next see if it is an AFS vnode */
843 # if defined(AFS_OBSD_ENV)
845 IsAfsVnode((struct vnode *)fd->
846 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
848 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
850 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
851 /* This is an AFS vnode */
852 if (((uap->com >> 8) & 0xff) == 'V') {
853 struct afs_ioctl *datap;
855 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
856 code = copyin_afs_ioctl((char *)uap->arg, datap);
858 osi_FreeSmallSpace(datap);
862 code = HandleIoctl(tvc, uap->com, datap);
863 osi_FreeSmallSpace(datap);
871 # if defined(AFS_FBSD_ENV)
872 return ioctl(td, uap);
873 # elif defined(AFS_OBSD_ENV)
874 code = sys_ioctl(p, uap, retval);
875 # elif defined(AFS_NBSD_ENV)
876 struct lwp *l = osi_curproc();
877 code = sys_ioctl(l, uap, retval);
883 #elif defined(UKERNEL)
891 } *uap = (struct a *)get_user_struct()->u_ap;
894 int ioctlDone = 0, code = 0;
896 AFS_STATCNT(afs_xioctl);
901 /* first determine whether this is any sort of vnode */
902 if (fd->f_type == DTYPE_VNODE) {
903 /* good, this is a vnode; next see if it is an AFS vnode */
904 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
905 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
906 /* This is an AFS vnode */
907 if (((uap->com >> 8) & 0xff) == 'V') {
908 struct afs_ioctl *datap;
910 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
911 code=copyin_afs_ioctl((char *)uap->arg, datap);
913 osi_FreeSmallSpace(datap);
916 return (setuerror(code), code);
918 code = HandleIoctl(tvc, uap->com, datap);
919 osi_FreeSmallSpace(datap);
932 #endif /* AFS_HPUX102_ENV */
934 #if defined(AFS_SGI_ENV)
935 /* "pioctl" system call entry point; just pass argument to the parameterized
944 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
948 AFS_STATCNT(afs_pioctl);
950 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
952 # ifdef AFS_SGI64_ENV
959 #elif defined(AFS_FBSD_ENV)
961 afs_pioctl(struct thread *td, void *args, int *retval)
968 } *uap = (struct a *)args;
970 AFS_STATCNT(afs_pioctl);
971 return (afs_syscall_pioctl
972 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
975 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
977 afs_pioctl(afs_proc_t *p, void *args, int *retval)
984 } *uap = (struct a *)args;
986 AFS_STATCNT(afs_pioctl);
987 # if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
988 return (afs_syscall_pioctl
989 (uap->path, uap->cmd, uap->cmarg, uap->follow,
992 return (afs_syscall_pioctl
993 (uap->path, uap->cmd, uap->cmarg, uap->follow,
994 # if defined(AFS_FBSD_ENV)
997 p->p_cred->pc_ucred));
1004 /* macro to avoid adding any more #ifdef's to pioctl code. */
1005 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1006 #define PIOCTL_FREE_CRED() crfree(credp)
1008 #define PIOCTL_FREE_CRED()
1013 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1014 rval_t *vvp, afs_ucred_t *credp)
1016 #ifdef AFS_DARWIN100_ENV
1017 afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1018 int follow, afs_ucred_t *credp)
1019 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1020 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1023 afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1027 struct afs_ioctl data;
1028 #ifdef AFS_NEED_CLIENTCONTEXT
1029 afs_ucred_t *tmpcred = NULL;
1031 #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)
1032 afs_ucred_t *foreigncreds = NULL;
1035 struct vnode *vp = NULL;
1036 #ifdef AFS_AIX41_ENV
1037 struct ucred *credp = crref(); /* don't free until done! */
1039 #ifdef AFS_LINUX22_ENV
1040 cred_t *credp = crref(); /* don't free until done! */
1044 AFS_STATCNT(afs_syscall_pioctl);
1046 follow = 1; /* compat. with old venus */
1047 code = copyin_afs_ioctl(cmarg, &data);
1050 #if defined(KERNEL_HAVE_UERROR)
1055 if ((com & 0xff) == PSetClientContext) {
1056 #ifdef AFS_NEED_CLIENTCONTEXT
1057 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1058 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1060 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
1064 crfree(foreigncreds);
1067 #if defined(KERNEL_HAVE_UERROR)
1068 return (setuerror(code), code);
1073 #else /* AFS_NEED_CLIENTCONTEXT */
1075 #endif /* AFS_NEED_CLIENTCONTEXT */
1077 #ifdef AFS_NEED_CLIENTCONTEXT
1080 * We could have done without temporary setting the u.u_cred below
1081 * (foreigncreds could be passed as param the pioctl modules)
1082 * but calls such as afs_osi_suser() doesn't allow that since it
1083 * references u.u_cred directly. We could, of course, do something
1084 * like afs_osi_suser(cred) which, I think, is better since it
1085 * generalizes and supports multi cred environments...
1087 #if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1089 credp = foreigncreds;
1090 #elif defined(AFS_AIX41_ENV)
1091 tmpcred = crref(); /* XXX */
1092 crset(foreigncreds);
1093 #elif defined(AFS_HPUX101_ENV)
1094 tmpcred = p_cred(u.u_procp);
1095 set_p_cred(u.u_procp, foreigncreds);
1096 #elif defined(AFS_SGI_ENV)
1097 tmpcred = OSI_GET_CURRENT_CRED();
1098 OSI_SET_CURRENT_CRED(foreigncreds);
1101 u.u_cred = foreigncreds;
1104 #endif /* AFS_NEED_CLIENTCONTEXT */
1105 if ((com & 0xff) == 15) {
1106 /* special case prefetch so entire pathname eval occurs in helper process.
1107 * otherwise, the pioctl call is essentially useless */
1108 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1110 Prefetch(path, &data, follow,
1111 foreigncreds ? foreigncreds : credp);
1113 code = Prefetch(path, &data, follow, osi_curcred());
1116 #if defined(KERNEL_HAVE_UERROR)
1123 #ifdef AFS_AIX41_ENV
1125 lookupname(path, USR, follow, NULL, &vp,
1126 foreigncreds ? foreigncreds : credp);
1128 #ifdef AFS_LINUX22_ENV
1129 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &dp);
1131 vp = (struct vnode *)dp->d_inode;
1133 code = gop_lookupname_user(path, AFS_UIOUSER, follow, &vp);
1134 #if defined(AFS_FBSD80_ENV) /* XXX check on 7x */
1137 #endif /* AFS_FBSD80_ENV */
1138 #endif /* AFS_LINUX22_ENV */
1139 #endif /* AFS_AIX41_ENV */
1143 #if defined(KERNEL_HAVE_UERROR)
1151 #if defined(AFS_SUN510_ENV)
1152 if (vp && !IsAfsVnode(vp)) {
1153 struct vnode *realvp;
1155 #ifdef AFS_SUN511_ENV
1156 (VOP_REALVP(vp, &realvp, NULL) == 0)
1158 (VOP_REALVP(vp, &realvp) == 0)
1161 struct vnode *oldvp = vp;
1169 /* now make the call if we were passed no file, or were passed an AFS file */
1170 if (!vp || IsAfsVnode(vp)) {
1171 #if defined(AFS_SUN5_ENV)
1172 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1173 #elif defined(AFS_AIX41_ENV)
1175 struct ucred *cred1, *cred2;
1178 cred1 = cred2 = foreigncreds;
1180 cred1 = cred2 = credp;
1182 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1183 if (cred1 != cred2) {
1184 /* something changed the creds */
1188 #elif defined(AFS_HPUX101_ENV)
1190 struct ucred *cred = p_cred(u.u_procp);
1191 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1193 #elif defined(AFS_SGI_ENV)
1196 credp = OSI_GET_CURRENT_CRED();
1197 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1199 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1200 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1201 #elif defined(UKERNEL)
1202 code = afs_HandlePioctl(vp, com, &data, follow,
1203 &(get_user_struct()->u_cred));
1205 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1208 #if defined(KERNEL_HAVE_UERROR)
1211 code = EINVAL; /* not in /afs */
1216 #if defined(AFS_NEED_CLIENTCONTEXT)
1218 #ifdef AFS_AIX41_ENV
1219 crset(tmpcred); /* restore original credentials */
1221 #if defined(AFS_HPUX101_ENV)
1222 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1223 #elif defined(AFS_SGI_ENV)
1224 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1225 #elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1226 credp = tmpcred; /* restore original credentials */
1228 osi_curcred() = tmpcred; /* restore original credentials */
1229 #endif /* AFS_HPUX101_ENV */
1230 crfree(foreigncreds);
1233 #endif /* AFS_NEED_CLIENTCONTEXT */
1235 #ifdef AFS_LINUX22_ENV
1238 #if defined(AFS_FBSD80_ENV)
1239 if (VOP_ISLOCKED(vp))
1241 #endif /* AFS_FBSD80_ENV */
1242 AFS_RELE(vp); /* put vnode back */
1246 #if defined(KERNEL_HAVE_UERROR)
1249 return (getuerror());
1255 #ifdef AFS_DARWIN100_ENV
1257 afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1258 int follow, afs_ucred_t *credp)
1260 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1261 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1266 #define MAXPIOCTLTOKENLEN \
1267 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1270 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1271 struct afs_ioctl *ablob, int afollow,
1272 afs_ucred_t **acred)
1275 struct vrequest treq;
1277 afs_int32 function, device;
1278 struct afs_pdata input, output;
1279 struct afs_pdata copyInput, copyOutput;
1281 pioctlFunction *pioctlSw;
1283 struct afs_fakestat_state fakestate;
1285 memset(&input, 0, sizeof(input));
1286 memset(&output, 0, sizeof(output));
1288 avc = avp ? VTOAFS(avp) : NULL;
1289 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1290 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1291 AFS_STATCNT(HandlePioctl);
1293 code = afs_InitReq(&treq, *acred);
1297 afs_InitFakeStat(&fakestate);
1299 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1303 device = (acom & 0xff00) >> 8;
1305 case 'V': /* Original pioctls */
1306 pioctlSw = VpioctlSw;
1307 pioctlSwSize = sizeof(VpioctlSw);
1309 case 'C': /* Coordinated/common pioctls */
1310 pioctlSw = CpioctlSw;
1311 pioctlSwSize = sizeof(CpioctlSw);
1313 case 'O': /* Coordinated/common pioctls */
1314 pioctlSw = OpioctlSw;
1315 pioctlSwSize = sizeof(OpioctlSw);
1321 function = acom & 0xff;
1322 if (function >= (pioctlSwSize / sizeof(char *))) {
1327 /* Do all range checking before continuing */
1328 if (ablob->in_size > MAXPIOCTLTOKENLEN ||
1329 ablob->in_size < 0 || ablob->out_size < 0) {
1334 code = afs_pd_alloc(&input, ablob->in_size);
1338 if (ablob->in_size > 0) {
1339 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code);
1340 input.ptr[input.remaining] = '\0';
1345 if ((function == 8 && device == 'V') ||
1346 (function == 7 && device == 'C')) { /* PGetTokens */
1347 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN);
1349 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ);
1355 copyOutput = output;
1358 (*pioctlSw[function]) (avc, function, &treq, ©Input,
1359 ©Output, acred);
1361 outSize = copyOutput.ptr - output.ptr;
1363 if (code == 0 && ablob->out_size > 0) {
1364 if (outSize > ablob->out_size) {
1365 code = E2BIG; /* data wont fit in user buffer */
1366 } else if (outSize) {
1367 AFS_COPYOUT(output.ptr, ablob->out, outSize, code);
1372 afs_pd_free(&input);
1373 afs_pd_free(&output);
1375 afs_PutFakeStat(&fakestate);
1376 return afs_CheckCode(code, &treq, 41);
1380 * VIOCGETFID (22) - Get file ID quickly
1384 * \param[in] ain not in use
1385 * \param[out] aout fid of requested file
1387 * \retval EINVAL Error if some of the initial arguments aren't set
1389 * \post get the file id of some file
1391 DECL_PIOCTL(PGetFID)
1393 AFS_STATCNT(PGetFID);
1396 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1402 * VIOCSETAL (1) - Set access control list
1406 * \param[in] ain the ACL being set
1407 * \param[out] aout the ACL being set returned
1409 * \retval EINVAL Error if some of the standard args aren't set
1411 * \post Changed ACL, via direct writing to the wire
1414 dummy_PSetAcl(char *ain, char *aout)
1419 DECL_PIOCTL(PSetAcl)
1422 struct afs_conn *tconn;
1423 struct AFSOpaque acl;
1424 struct AFSVolSync tsync;
1425 struct AFSFetchStatus OutStatus;
1426 struct rx_connection *rxconn;
1429 AFS_STATCNT(PSetAcl);
1433 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1435 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1436 if (acl.AFSOpaque_len > 1024)
1440 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1442 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1445 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1446 &acl, &OutStatus, &tsync);
1451 } while (afs_Analyze
1452 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1453 SHARED_LOCK, NULL));
1455 /* now we've forgotten all of the access info */
1456 ObtainWriteLock(&afs_xcbhash, 455);
1458 afs_DequeueCallback(avc);
1459 avc->f.states &= ~(CStatd | CUnique);
1460 ReleaseWriteLock(&afs_xcbhash);
1461 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1462 osi_dnlc_purgedp(avc);
1464 /* SXW - Should we flush metadata here? */
1468 int afs_defaultAsynchrony = 0;
1471 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1475 * \param[in] ain sbstruct (store behind structure) input
1476 * \param[out] aout resulting sbstruct
1479 * Error if the user doesn't have super-user credentials
1481 * Error if there isn't enough access to not check the mode bits
1484 * Changes either the default asynchrony (the amount of data that
1485 * can remain to be written when the cache manager returns control
1486 * to the user), or the asyncrony for the specified file.
1488 DECL_PIOCTL(PStoreBehind)
1490 struct sbstruct sbr;
1492 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1495 if (sbr.sb_default != -1) {
1496 if (afs_osi_suser(*acred))
1497 afs_defaultAsynchrony = sbr.sb_default;
1502 if (avc && (sbr.sb_thisfile != -1)) {
1504 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1505 avc->asynchrony = sbr.sb_thisfile;
1510 memset(&sbr, 0, sizeof(sbr));
1511 sbr.sb_default = afs_defaultAsynchrony;
1513 sbr.sb_thisfile = avc->asynchrony;
1516 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1520 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1524 * \param[in] ain not in use
1525 * \param[out] aout not in use
1527 * \retval EACCES Error if the user doesn't have super-user credentials
1529 * \post set the gcpags to GCPAGS_USERDISABLED
1531 DECL_PIOCTL(PGCPAGs)
1533 if (!afs_osi_suser(*acred)) {
1536 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1541 * VIOCGETAL (2) - Get access control list
1545 * \param[in] ain not in use
1546 * \param[out] aout the ACL
1548 * \retval EINVAL Error if some of the standard args aren't set
1549 * \retval ERANGE Error if the vnode of the file id is too large
1550 * \retval -1 Error if getting the ACL failed
1552 * \post Obtain the ACL, based on file ID
1555 * There is a hack to tell which type of ACL is being returned, checks
1556 * the top 2-bytes of the input size to judge what type of ACL it is,
1557 * only for dfs xlator ACLs
1559 DECL_PIOCTL(PGetAcl)
1561 struct AFSOpaque acl;
1562 struct AFSVolSync tsync;
1563 struct AFSFetchStatus OutStatus;
1565 struct afs_conn *tconn;
1567 struct rx_connection *rxconn;
1570 AFS_STATCNT(PGetAcl);
1573 Fid.Volume = avc->f.fid.Fid.Volume;
1574 Fid.Vnode = avc->f.fid.Fid.Vnode;
1575 Fid.Unique = avc->f.fid.Fid.Unique;
1576 if (avc->f.states & CForeign) {
1578 * For a dfs xlator acl we have a special hack so that the
1579 * xlator will distinguish which type of acl will return. So
1580 * we currently use the top 2-bytes (vals 0-4) to tell which
1581 * type of acl to bring back. Horrible hack but this will
1582 * cause the least number of changes to code size and interfaces.
1584 if (Fid.Vnode & 0xc0000000)
1586 Fid.Vnode |= (ain->remaining << 30);
1588 acl.AFSOpaque_val = aout->ptr;
1590 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1592 acl.AFSOpaque_val[0] = '\0';
1593 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1595 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1600 } while (afs_Analyze
1601 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1602 SHARED_LOCK, NULL));
1605 if (acl.AFSOpaque_len == 0)
1606 afs_pd_skip(aout, 1); /* leave the NULL */
1608 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1614 * PNoop returns success. Used for functions which are not implemented
1615 * or are no longer in use.
1619 * \retval Always returns success
1622 * Functions involved in this:
1623 * 17 (VIOCENGROUP) -- used to be enable group;
1624 * 18 (VIOCDISGROUP) -- used to be disable group;
1625 * 2 (?) -- get/set cache-bypass size threshold
1634 * PBogus returns fail. Used for functions which are not implemented or
1635 * are no longer in use.
1639 * \retval EINVAL Always returns this value
1642 * Functions involved in this:
1648 * 13 (VIOCGETTIME) -- used to be quick check time;
1649 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1650 * 16 (VIOCNOP) -- used to be testing code;
1651 * 19 (VIOCLISTGROUPS) -- used to be list group;
1652 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1653 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1654 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1655 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1656 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1657 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1658 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1659 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1660 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1661 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1662 * 68 (?) -- arla: fetch stats;
1666 AFS_STATCNT(PBogus);
1671 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1675 * \param[in] ain not in use (avc used to pass in file id)
1676 * \param[out] aout cell name
1678 * \retval EINVAL Error if some of the standard args aren't set
1679 * \retval ESRCH Error if the file isn't part of a cell
1681 * \post Get a cell based on a passed in file id
1683 DECL_PIOCTL(PGetFileCell)
1687 AFS_STATCNT(PGetFileCell);
1690 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK);
1694 if (afs_pd_putString(aout, tcell->cellName) != 0)
1697 afs_PutCell(tcell, READ_LOCK);
1702 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1706 * \param[in] ain not in use
1707 * \param[out] aout cell name
1710 * Error if the afs daemon hasn't started yet
1712 * Error if the machine isn't part of a cell, for whatever reason
1714 * \post Get the primary cell that the machine is a part of.
1716 DECL_PIOCTL(PGetWSCell)
1718 struct cell *tcell = NULL;
1720 AFS_STATCNT(PGetWSCell);
1721 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1722 return EIO; /* Inappropriate ioctl for device */
1724 tcell = afs_GetPrimaryCell(READ_LOCK);
1725 if (!tcell) /* no primary cell? */
1728 if (afs_pd_putString(aout, tcell->cellName) != 0)
1730 afs_PutCell(tcell, READ_LOCK);
1735 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1739 * \param[in] ain not in use (user id found via areq)
1740 * \param[out] aout cell name
1743 * Error if the user id doesn't have a primary cell specified
1745 * \post Get the primary cell for a certain user, based on the user's uid
1747 DECL_PIOCTL(PGetUserCell)
1750 struct unixuser *tu;
1753 AFS_STATCNT(PGetUserCell);
1754 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1755 return EIO; /* Inappropriate ioctl for device */
1757 /* return the cell name of the primary cell for this user */
1758 i = UHash(areq->uid);
1759 ObtainWriteLock(&afs_xuser, 224);
1760 for (tu = afs_users[i]; tu; tu = tu->next) {
1761 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1763 ReleaseWriteLock(&afs_xuser);
1764 afs_LockUser(tu, READ_LOCK, 0);
1769 tcell = afs_GetCell(tu->cell, READ_LOCK);
1770 afs_PutUser(tu, READ_LOCK);
1774 if (afs_pd_putString(aout, tcell->cellName) != 0)
1776 afs_PutCell(tcell, READ_LOCK);
1779 ReleaseWriteLock(&afs_xuser);
1784 /* Work out which cell we're changing tokens for */
1786 _settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1794 if (cellName && strlen(cellName) > 0) {
1795 cell = afs_GetCellByName(cellName, READ_LOCK);
1797 cell = afs_GetPrimaryCell(READ_LOCK);
1808 *cellNum = cell->cellNum;
1809 afs_PutCell(cell, READ_LOCK);
1816 _settok_setParentPag(afs_ucred_t **cred) {
1818 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1820 osi_procname(procname, 256);
1821 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1822 MyPidxx2Pid(MyPidxx), procname);
1823 return setpag(osi_curproc(), cred, -1, &pag, 1);
1825 return setpag(cred, -1, &pag, 1);
1830 * VIOCSETTOK (3) - Set authentication tokens
1834 * \param[in] ain the krb tickets from which to set the afs tokens
1835 * \param[out] aout not in use
1838 * Error if the ticket is either too long or too short
1840 * Error if the AFS initState is below 101
1842 * Error if the cell for which the Token is being set can't be found
1845 * Set the Tokens for a specific cell name, unless there is none set,
1846 * then default to primary
1849 DECL_PIOCTL(PSetTokens)
1854 struct unixuser *tu;
1855 struct ClearToken clear;
1859 struct vrequest treq;
1860 afs_int32 flag, set_parent_pag = 0;
1862 AFS_STATCNT(PSetTokens);
1863 if (!afs_resourceinit_flag) {
1867 if (afs_pd_getInt(ain, &stLen) != 0)
1870 stp = afs_pd_where(ain); /* remember where the ticket is */
1871 if (stLen < 0 || stLen > MAXKTCTICKETLEN)
1872 return EINVAL; /* malloc may fail */
1873 if (afs_pd_skip(ain, stLen) != 0)
1876 if (afs_pd_getInt(ain, &size) != 0)
1878 if (size != sizeof(struct ClearToken))
1881 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1884 if (clear.AuthHandle == -1)
1885 clear.AuthHandle = 999; /* more rxvab compat stuff */
1887 if (afs_pd_remaining(ain) != 0) {
1888 /* still stuff left? we've got primary flag and cell name.
1891 if (afs_pd_getInt(ain, &flag) != 0)
1894 /* some versions of gcc appear to need != 0 in order to get this
1896 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1901 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1904 code = _settok_tokenCell(cellName, &cellNum, NULL);
1908 /* default to primary cell, primary id */
1909 code = _settok_tokenCell(NULL, &cellNum, &flag);
1914 if (set_parent_pag) {
1915 if (_settok_setParentPag(acred) == 0) {
1916 afs_InitReq(&treq, *acred);
1921 /* now we just set the tokens */
1922 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
1923 /* Set tokens destroys any that are already there */
1924 afs_FreeTokens(&tu->tokens);
1925 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1927 afs_stats_cmfullperf.authent.TicketUpdates++;
1928 afs_ComputePAGStats();
1929 #endif /* AFS_NOSTATS */
1930 tu->states |= UHasTokens;
1931 tu->states &= ~UTokensBad;
1932 afs_SetPrimary(tu, flag);
1933 tu->tokenTime = osi_Time();
1934 afs_ResetUserConns(tu);
1935 afs_NotifyUser(tu, UTokensObtained);
1936 afs_PutUser(tu, WRITE_LOCK);
1942 * VIOCGETVOLSTAT (4) - Get volume status
1946 * \param[in] ain not in use
1947 * \param[out] aout status of the volume
1949 * \retval EINVAL Error if some of the standard args aren't set
1952 * The status of a volume (based on the FID of the volume), or an
1953 * offline message /motd
1955 DECL_PIOCTL(PGetVolumeStatus)
1958 char *offLineMsg = afs_osi_Alloc(256);
1959 char *motd = afs_osi_Alloc(256);
1960 struct afs_conn *tc;
1962 struct AFSFetchVolumeStatus volstat;
1964 struct rx_connection *rxconn;
1967 osi_Assert(offLineMsg != NULL);
1968 osi_Assert(motd != NULL);
1969 AFS_STATCNT(PGetVolumeStatus);
1976 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
1978 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1981 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
1982 &Name, &offLineMsg, &motd);
1987 } while (afs_Analyze
1988 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
1989 SHARED_LOCK, NULL));
1993 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
1994 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
1996 if (afs_pd_putString(aout, volName) != 0)
1998 if (afs_pd_putString(aout, offLineMsg) != 0)
2000 if (afs_pd_putString(aout, motd) != 0)
2003 afs_osi_Free(offLineMsg, 256);
2004 afs_osi_Free(motd, 256);
2009 * VIOCSETVOLSTAT (5) - Set volume status
2014 * values to set the status at, offline message, message of the day,
2015 * volume name, minimum quota, maximum quota
2017 * status of a volume, offlines messages, minimum quota, maximumm quota
2020 * Error if some of the standard args aren't set
2022 * Error if the volume is read only, or a backup volume
2024 * Error if the volume can't be accessed
2026 * Error if the volume name, offline message, and motd are too big
2029 * Set the status of a volume, including any offline messages,
2030 * a minimum quota, and a maximum quota
2032 DECL_PIOCTL(PSetVolumeStatus)
2037 struct afs_conn *tc;
2039 struct AFSFetchVolumeStatus volstat;
2040 struct AFSStoreVolumeStatus storeStat;
2042 struct rx_connection *rxconn;
2045 AFS_STATCNT(PSetVolumeStatus);
2049 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2051 if (tvp->states & (VRO | VBackup)) {
2052 afs_PutVolume(tvp, READ_LOCK);
2055 afs_PutVolume(tvp, READ_LOCK);
2060 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2063 if (afs_pd_getStringPtr(ain, &volName) != 0)
2065 if (strlen(volName) > 32)
2068 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2070 if (strlen(offLineMsg) > 256)
2073 if (afs_pd_getStringPtr(ain, &motd) != 0)
2075 if (strlen(motd) > 256)
2078 /* Done reading ... */
2081 if (volstat.MinQuota != -1) {
2082 storeStat.MinQuota = volstat.MinQuota;
2083 storeStat.Mask |= AFS_SETMINQUOTA;
2085 if (volstat.MaxQuota != -1) {
2086 storeStat.MaxQuota = volstat.MaxQuota;
2087 storeStat.Mask |= AFS_SETMAXQUOTA;
2090 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2092 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
2095 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2096 volName, offLineMsg, motd);
2101 } while (afs_Analyze
2102 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
2103 SHARED_LOCK, NULL));
2107 /* we are sending parms back to make compat. with prev system. should
2108 * change interface later to not ask for current status, just set new
2111 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2113 if (afs_pd_putString(aout, volName) != 0)
2115 if (afs_pd_putString(aout, offLineMsg) != 0)
2117 if (afs_pd_putString(aout, motd) != 0)
2124 * VIOCFLUSH (6) - Invalidate cache entry
2128 * \param[in] ain not in use
2129 * \param[out] aout not in use
2131 * \retval EINVAL Error if some of the standard args aren't set
2133 * \post Flush any information the cache manager has on an entry
2137 AFS_STATCNT(PFlush);
2140 #ifdef AFS_BOZONLOCK_ENV
2141 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2143 ObtainWriteLock(&avc->lock, 225);
2144 afs_ResetVCache(avc, *acred);
2145 ReleaseWriteLock(&avc->lock);
2146 #ifdef AFS_BOZONLOCK_ENV
2147 afs_BozonUnlock(&avc->pvnLock, avc);
2153 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2158 * the last component in a path, related to mountpoint that we're
2159 * looking for information about
2161 * volume, cell, link data
2163 * \retval EINVAL Error if some of the standard args aren't set
2164 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2165 * \retval EIO Error if the link data can't be accessed
2167 * \post Get the volume, and cell, as well as the link data for a mount point
2169 DECL_PIOCTL(PNewStatMount)
2174 struct VenusFid tfid;
2177 struct sysname_info sysState;
2178 afs_size_t offset, len;
2180 AFS_STATCNT(PNewStatMount);
2184 if (afs_pd_getStringPtr(ain, &name) != 0)
2187 code = afs_VerifyVCache(avc, areq);
2190 if (vType(avc) != VDIR) {
2193 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2196 Check_AtSys(avc, name, &sysState, areq);
2197 ObtainReadLock(&tdc->lock);
2199 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2200 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2201 ReleaseReadLock(&tdc->lock);
2202 afs_PutDCache(tdc); /* we're done with the data */
2203 bufp = sysState.name;
2207 tfid.Cell = avc->f.fid.Cell;
2208 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2209 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
2210 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2212 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2218 if (tvc->mvstat != 1) {
2223 ObtainWriteLock(&tvc->lock, 226);
2224 code = afs_HandleLink(tvc, areq);
2226 if (tvc->linkData) {
2227 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2230 /* we have the data */
2231 if (afs_pd_putString(aout, tvc->linkData) != 0)
2237 ReleaseWriteLock(&tvc->lock);
2240 if (sysState.allocked)
2241 osi_FreeLargeSpace(bufp);
2246 * A helper function to get the n'th cell which a particular user has tokens
2247 * for. This is racy. If new tokens are added whilst we're iterating, then
2248 * we may return some cells twice. If tokens expire mid run, then we'll
2249 * miss some cells from our output. So, could be better, but that would
2250 * require an interface change.
2253 static struct unixuser *
2254 getNthCell(afs_int32 uid, afs_int32 iterator) {
2256 struct unixuser *tu = NULL;
2259 ObtainReadLock(&afs_xuser);
2260 for (tu = afs_users[i]; tu; tu = tu->next) {
2261 if (tu->uid == uid && (tu->states & UHasTokens)) {
2262 if (iterator-- == 0)
2263 break; /* are we done yet? */
2269 ReleaseReadLock(&afs_xuser);
2271 afs_LockUser(tu, READ_LOCK, 0);
2278 * VIOCGETTOK (8) - Get authentication tokens
2282 * \param[in] ain cellid to return tokens for
2283 * \param[out] aout token
2286 * Error if the afs daemon hasn't started yet
2288 * Error if the input parameter is out of the bounds of the available
2291 * Error if there aren't tokens for this cell
2294 * If the input paramater exists, get the token that corresponds to
2295 * the parameter value, if there is no token at this value, get the
2296 * token for the first cell
2298 * \notes "it's a weird interface (from comments in the code)"
2301 DECL_PIOCTL(PGetTokens)
2304 struct unixuser *tu = NULL;
2305 union tokenUnion *token;
2306 afs_int32 iterator = 0;
2311 AFS_STATCNT(PGetTokens);
2312 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2313 return EIO; /* Inappropriate ioctl for device */
2315 /* weird interface. If input parameter is present, it is an integer and
2316 * we're supposed to return the parm'th tokens for this unix uid.
2317 * If not present, we just return tokens for cell 1.
2318 * If counter out of bounds, return EDOM.
2319 * If no tokens for the particular cell, return ENOTCONN.
2320 * Also, if this mysterious parm is present, we return, along with the
2321 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2322 * at the end, in that order.
2324 newStyle = (afs_pd_remaining(ain) > 0);
2326 if (afs_pd_getInt(ain, &iterator) != 0)
2330 tu = getNthCell(areq->uid, iterator);
2332 cellNum = afs_GetPrimaryCellNum();
2334 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
2339 if (!(tu->states & UHasTokens)
2340 || !afs_HasUsableTokens(tu->tokens, osi_Time())) {
2341 tu->states |= (UTokensBad | UNeedsReset);
2342 afs_NotifyUser(tu, UTokensDropped);
2343 afs_PutUser(tu, READ_LOCK);
2346 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2348 /* If they don't have an RXKAD token, but do have other tokens,
2349 * then sadly there's nothing this interface can do to help them. */
2353 /* for compat, we try to return 56 byte tix if they fit */
2354 iterator = token->rxkad.ticketLen;
2356 iterator = 56; /* # of bytes we're returning */
2358 if (afs_pd_putInt(aout, iterator) != 0)
2360 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2362 if (token->rxkad.ticketLen < 56) {
2363 /* Tokens are always 56 bytes or larger */
2364 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2369 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2371 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2372 sizeof(struct ClearToken)) != 0)
2376 /* put out primary id and cell name, too */
2377 iterator = (tu->states & UPrimary ? 1 : 0);
2378 if (afs_pd_putInt(aout, iterator) != 0)
2380 tcell = afs_GetCell(tu->cell, READ_LOCK);
2382 if (afs_pd_putString(aout, tcell->cellName) != 0)
2384 afs_PutCell(tcell, READ_LOCK);
2386 if (afs_pd_putString(aout, "") != 0)
2389 /* Got here, all is good */
2392 afs_PutUser(tu, READ_LOCK);
2397 * VIOCUNLOG (9) - Invalidate tokens
2401 * \param[in] ain not in use
2402 * \param[out] aout not in use
2404 * \retval EIO Error if the afs daemon hasn't been started yet
2406 * \post remove tokens from a user, specified by the user id
2408 * \notes sets the token's time to 0, which then causes it to be removed
2409 * \notes Unlog is the same as un-pag in OpenAFS
2414 struct unixuser *tu;
2416 AFS_STATCNT(PUnlog);
2417 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2418 return EIO; /* Inappropriate ioctl for device */
2420 i = UHash(areq->uid);
2421 ObtainWriteLock(&afs_xuser, 227);
2422 for (tu = afs_users[i]; tu; tu = tu->next) {
2423 if (tu->uid == areq->uid) {
2425 ReleaseWriteLock(&afs_xuser);
2427 afs_LockUser(tu, WRITE_LOCK, 366);
2429 tu->states &= ~UHasTokens;
2430 afs_FreeTokens(&tu->tokens);
2431 afs_NotifyUser(tu, UTokensDropped);
2432 /* We have to drop the lock over the call to afs_ResetUserConns,
2433 * since it obtains the afs_xvcache lock. We could also keep
2434 * the lock, and modify ResetUserConns to take parm saying we
2435 * obtained the lock already, but that is overkill. By keeping
2436 * the "tu" pointer held over the released lock, we guarantee
2437 * that we won't lose our place, and that we'll pass over
2438 * every user conn that existed when we began this call.
2440 afs_ResetUserConns(tu);
2441 afs_PutUser(tu, WRITE_LOCK);
2442 ObtainWriteLock(&afs_xuser, 228);
2444 /* set the expire times to 0, causes
2445 * afs_GCUserData to remove this entry
2448 #endif /* UKERNEL */
2451 ReleaseWriteLock(&afs_xuser);
2456 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2460 * \param[in] ain host address to be set
2461 * \param[out] aout old host address
2464 * depending on whether or not a variable is set, either get the host
2465 * for the cache manager monitor, or set the old address and give it
2468 * \notes Errors turn off mariner
2470 DECL_PIOCTL(PMariner)
2472 afs_int32 newHostAddr;
2473 afs_int32 oldHostAddr;
2475 AFS_STATCNT(PMariner);
2477 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2480 oldHostAddr = 0xffffffff; /* disabled */
2482 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2485 if (newHostAddr == 0xffffffff) {
2486 /* disable mariner operations */
2488 } else if (newHostAddr) {
2490 afs_marinerHost = newHostAddr;
2493 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2500 * VIOCCKSERV (10) - Check that servers are up
2504 * \param[in] ain name of the cell
2505 * \param[out] aout current down server list
2507 * \retval EIO Error if the afs daemon hasn't started yet
2508 * \retval EACCES Error if the user doesn't have super-user credentials
2509 * \retval ENOENT Error if we are unable to obtain the cell
2512 * Either a fast check (where it doesn't contact servers) or a
2513 * local check (checks local cell only)
2515 DECL_PIOCTL(PCheckServers)
2520 char *cellName = NULL;
2522 struct chservinfo *pcheck;
2524 AFS_STATCNT(PCheckServers);
2526 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2527 return EIO; /* Inappropriate ioctl for device */
2529 /* This is tricky, because we need to peak at the datastream to see
2530 * what we're getting. For now, let's cheat. */
2532 /* ain contains either an int32 or a string */
2533 if (ain->remaining == 0)
2536 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2537 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2541 if (pcheck->tinterval >= 0) {
2542 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2544 if (pcheck->tinterval > 0) {
2545 if (!afs_osi_suser(*acred))
2547 afs_probe_interval = pcheck->tinterval;
2551 temp = pcheck->tflags;
2553 cellName = pcheck->tbuffer;
2554 } else { /* For pre afs3.3 versions */
2555 if (afs_pd_getInt(ain, &temp) != 0)
2557 if (afs_pd_remaining(ain) > 0) {
2558 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2564 * 1: fast check, don't contact servers.
2565 * 2: local cell only.
2568 /* have cell name, too */
2569 cellp = afs_GetCellByName(cellName, READ_LOCK);
2574 if (!cellp && (temp & 2)) {
2575 /* use local cell */
2576 cellp = afs_GetPrimaryCell(READ_LOCK);
2578 if (!(temp & 1)) { /* if not fast, call server checker routine */
2579 afs_CheckServers(1, cellp); /* check down servers */
2580 afs_CheckServers(0, cellp); /* check up servers */
2582 /* now return the current down server list */
2583 ObtainReadLock(&afs_xserver);
2584 for (i = 0; i < NSERVERS; i++) {
2585 for (ts = afs_servers[i]; ts; ts = ts->next) {
2586 if (cellp && ts->cell != cellp)
2587 continue; /* cell spec'd and wrong */
2588 if ((ts->flags & SRVR_ISDOWN)
2589 && ts->addr->sa_portal != ts->cell->vlport) {
2590 afs_pd_putInt(aout, ts->addr->sa_ip);
2594 ReleaseReadLock(&afs_xserver);
2596 afs_PutCell(cellp, READ_LOCK);
2601 * VIOCCKBACK (11) - Check backup volume mappings
2605 * \param[in] ain not in use
2606 * \param[out] aout not in use
2608 * \retval EIO Error if the afs daemon hasn't started yet
2611 * Check the root volume, and then check the names if the volume
2612 * check variable is set to force, has expired, is busy, or if
2613 * the mount points variable is set
2615 DECL_PIOCTL(PCheckVolNames)
2617 AFS_STATCNT(PCheckVolNames);
2618 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2619 return EIO; /* Inappropriate ioctl for device */
2621 afs_CheckRootVolume();
2622 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
2623 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
2628 * VIOCCKCONN (12) - Check connections for a user
2632 * \param[in] ain not in use
2633 * \param[out] aout not in use
2636 * Error if no user is specififed, the user has no tokens set,
2637 * or if the user's tokens are bad
2640 * check to see if a user has the correct authentication.
2641 * If so, allow access.
2643 * \notes Check the connections to all the servers specified
2645 DECL_PIOCTL(PCheckAuth)
2649 struct sa_conn_vector *tcv;
2650 struct unixuser *tu;
2653 AFS_STATCNT(PCheckAuth);
2654 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2655 return EIO; /* Inappropriate ioctl for device */
2658 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2662 /* we have a user */
2663 ObtainReadLock(&afs_xsrvAddr);
2664 ObtainReadLock(&afs_xconn);
2666 /* any tokens set? */
2667 if ((tu->states & UHasTokens) == 0)
2669 /* all connections in cell 1 working? */
2670 for (i = 0; i < NSERVERS; i++) {
2671 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2672 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2673 if (tcv->user == tu && (tu->states & UTokensBad))
2678 ReleaseReadLock(&afs_xsrvAddr);
2679 ReleaseReadLock(&afs_xconn);
2680 afs_PutUser(tu, READ_LOCK);
2682 if (afs_pd_putInt(aout, retValue) != 0)
2688 Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2693 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2699 AFS_STATCNT(Prefetch);
2702 tp = osi_AllocLargeSpace(1024);
2703 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2705 osi_FreeLargeSpace(tp);
2708 if (afs_BBusy()) { /* do this as late as possible */
2709 osi_FreeLargeSpace(tp);
2710 return EWOULDBLOCK; /* pretty close */
2712 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2713 (afs_size_t) 0, tp, (void *)0, (void *)0);
2718 * VIOCWHEREIS (14) - Find out where a volume is located
2722 * \param[in] ain not in use
2723 * \param[out] aout volume location
2725 * \retval EINVAL Error if some of the default arguments don't exist
2726 * \retval ENODEV Error if there is no such volume
2728 * \post fine a volume, based on a volume file id
2730 * \notes check each of the servers specified
2732 DECL_PIOCTL(PFindVolume)
2739 AFS_STATCNT(PFindVolume);
2742 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK);
2746 for (i = 0; i < AFS_MAXHOSTS; i++) {
2747 ts = tvp->serverHost[i];
2750 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2755 if (i < AFS_MAXHOSTS) {
2756 /* still room for terminating NULL, add it on */
2757 if (afs_pd_putInt(aout, 0) != 0) {
2763 afs_PutVolume(tvp, READ_LOCK);
2768 * VIOCACCESS (20) - Access using PRS_FS bits
2772 * \param[in] ain PRS_FS bits
2773 * \param[out] aout not in use
2775 * \retval EINVAL Error if some of the initial arguments aren't set
2776 * \retval EACCES Error if access is denied
2778 * \post check to make sure access is allowed
2780 DECL_PIOCTL(PViceAccess)
2785 AFS_STATCNT(PViceAccess);
2789 code = afs_VerifyVCache(avc, areq);
2793 if (afs_pd_getInt(ain, &temp) != 0)
2796 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2804 * VIOC_GETPAG (13) - Get PAG value
2808 * \param[in] ain not in use
2809 * \param[out] aout PAG value or NOPAG
2811 * \post get PAG value for the caller's cred
2813 DECL_PIOCTL(PGetPAG)
2817 pag = PagInCred(*acred);
2819 return afs_pd_putInt(aout, pag);
2822 DECL_PIOCTL(PPrecache)
2826 /*AFS_STATCNT(PPrecache);*/
2827 if (!afs_osi_suser(*acred))
2830 if (afs_pd_getInt(ain, &newValue) != 0)
2833 afs_preCache = newValue*1024;
2838 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2842 * \param[in] ain the size the venus cache should be set to
2843 * \param[out] aout not in use
2845 * \retval EACCES Error if the user doesn't have super-user credentials
2846 * \retval EROFS Error if the cache is set to be in memory
2849 * Set the cache size based on user input. If no size is given,
2850 * set it to the default OpenAFS cache size.
2853 * recompute the general cache parameters for every single block allocated
2855 DECL_PIOCTL(PSetCacheSize)
2860 AFS_STATCNT(PSetCacheSize);
2862 if (!afs_osi_suser(*acred))
2864 /* too many things are setup initially in mem cache version */
2865 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2867 if (afs_pd_getInt(ain, &newValue) != 0)
2870 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2872 if (newValue < afs_min_cache)
2873 afs_cacheBlocks = afs_min_cache;
2875 afs_cacheBlocks = newValue;
2877 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2878 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2879 afs_MaybeWakeupTruncateDaemon();
2880 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2881 afs_osi_Wait(1000, 0, 0);
2882 afs_MaybeWakeupTruncateDaemon();
2887 #define MAXGCSTATS 16
2889 * VIOCGETCACHEPARMS (40) - Get cache stats
2893 * \param[in] ain afs index flags
2894 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2896 * \post Get the cache blocks, and how many of the cache blocks there are
2898 DECL_PIOCTL(PGetCacheSize)
2900 afs_int32 results[MAXGCSTATS];
2902 struct dcache * tdc;
2905 AFS_STATCNT(PGetCacheSize);
2907 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2908 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2909 } else if (afs_pd_remaining(ain) == 0) {
2915 memset(results, 0, sizeof(results));
2916 results[0] = afs_cacheBlocks;
2917 results[1] = afs_blocksUsed;
2918 results[2] = afs_cacheFiles;
2921 for (i = 0; i < afs_cacheFiles; i++) {
2922 if (afs_indexFlags[i] & IFFree) results[3]++;
2924 } else if (2 == flags){
2925 for (i = 0; i < afs_cacheFiles; i++) {
2926 if (afs_indexFlags[i] & IFFree) results[3]++;
2927 if (afs_indexFlags[i] & IFEverUsed) results[4]++;
2928 if (afs_indexFlags[i] & IFDataMod) results[5]++;
2929 if (afs_indexFlags[i] & IFDirtyPages) results[6]++;
2930 if (afs_indexFlags[i] & IFAnyPages) results[7]++;
2931 if (afs_indexFlags[i] & IFDiscarded) results[8]++;
2933 tdc = afs_indexTable[i];
2936 size = tdc->validPos;
2937 if ( 0 < size && size < (1<<12) ) results[10]++;
2938 else if (size < (1<<14) ) results[11]++;
2939 else if (size < (1<<16) ) results[12]++;
2940 else if (size < (1<<18) ) results[13]++;
2941 else if (size < (1<<20) ) results[14]++;
2942 else if (size >= (1<<20) ) results[15]++;
2946 return afs_pd_putBytes(aout, results, sizeof(results));
2950 * VIOCFLUSHCB (25) - Flush callback only
2954 * \param[in] ain not in use
2955 * \param[out] aout not in use
2957 * \retval EINVAL Error if some of the standard args aren't set
2958 * \retval 0 0 returned if the volume is set to read-only
2961 * Flushes callbacks, by setting the length of callbacks to one,
2962 * setting the next callback to be sent to the CB_DROPPED value,
2963 * and then dequeues everything else.
2965 DECL_PIOCTL(PRemoveCallBack)
2967 struct afs_conn *tc;
2969 struct AFSCallBack CallBacks_Array[1];
2970 struct AFSCBFids theFids;
2971 struct AFSCBs theCBs;
2972 struct rx_connection *rxconn;
2975 AFS_STATCNT(PRemoveCallBack);
2978 if (avc->f.states & CRO)
2979 return 0; /* read-only-ness can't change */
2980 ObtainWriteLock(&avc->lock, 229);
2981 theFids.AFSCBFids_len = 1;
2982 theCBs.AFSCBs_len = 1;
2983 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2984 theCBs.AFSCBs_val = CallBacks_Array;
2985 CallBacks_Array[0].CallBackType = CB_DROPPED;
2986 if (avc->callback) {
2988 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
2990 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
2992 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
2996 /* don't set code on failure since we wouldn't use it */
2997 } while (afs_Analyze
2998 (tc, rxconn, code, &avc->f.fid, areq,
2999 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
3001 ObtainWriteLock(&afs_xcbhash, 457);
3002 afs_DequeueCallback(avc);
3004 avc->f.states &= ~(CStatd | CUnique);
3005 ReleaseWriteLock(&afs_xcbhash);
3006 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
3007 osi_dnlc_purgedp(avc);
3009 ReleaseWriteLock(&avc->lock);
3014 * VIOCNEWCELL (26) - Configure new cell
3019 * the name of the cell, the hosts that will be a part of the cell,
3020 * whether or not it's linked with another cell, the other cell it's
3021 * linked with, the file server port, and the volume server port
3025 * \retval EIO Error if the afs daemon hasn't started yet
3026 * \retval EACCES Error if the user doesn't have super-user cedentials
3027 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3029 * \post creates a new cell
3031 DECL_PIOCTL(PNewCell)
3033 afs_int32 cellHosts[AFS_MAXCELLHOSTS], magic = 0;
3034 char *newcell = NULL;
3035 char *linkedcell = NULL;
3037 afs_int32 linkedstate = 0;
3038 afs_int32 fsport = 0, vlport = 0;
3041 AFS_STATCNT(PNewCell);
3042 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3043 return EIO; /* Inappropriate ioctl for device */
3045 if (!afs_osi_suser(*acred))
3048 if (afs_pd_getInt(ain, &magic) != 0)
3050 if (magic != 0x12345678)
3053 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3054 * server addresses while the 3.5 fs newcell command passes
3055 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3058 * This whole logic is bogus, because it relies on the newer command
3059 * sending its 12th address as 0.
3061 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS +3) * sizeof(afs_int32))
3064 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS + 3) * sizeof(afs_int32);
3065 if (newcell[0] != '\0') {
3068 skip = AFS_MAXHOSTS - AFS_MAXCELLHOSTS;
3071 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3072 if (afs_pd_getBytes(ain, &cellHosts,
3073 AFS_MAXCELLHOSTS * sizeof(afs_int32)) != 0)
3075 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3078 if (afs_pd_getInt(ain, &fsport) != 0)
3081 fsport = 0; /* Privileged ports not allowed */
3083 if (afs_pd_getInt(ain, &vlport) != 0)
3086 vlport = 0; /* Privileged ports not allowed */
3088 if (afs_pd_getInt(ain, &ls) != 0)
3091 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3095 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3097 linkedstate |= CLinkedCell;
3100 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
3102 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3107 DECL_PIOCTL(PNewAlias)
3109 /* create a new cell alias */
3110 char *realName, *aliasName;
3112 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3113 return EIO; /* Inappropriate ioctl for device */
3115 if (!afs_osi_suser(*acred))
3118 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3120 if (afs_pd_getStringPtr(ain, &realName) != 0)
3123 return afs_NewCellAlias(aliasName, realName);
3127 * VIOCGETCELL (27) - Get cell info
3131 * \param[in] ain The cell index of a specific cell
3132 * \param[out] aout list of servers in the cell
3134 * \retval EIO Error if the afs daemon hasn't started yet
3135 * \retval EDOM Error if there is no cell asked about
3137 * \post Lists the cell's server names and and addresses
3139 DECL_PIOCTL(PListCells)
3141 afs_int32 whichCell;
3142 struct cell *tcell = 0;
3146 AFS_STATCNT(PListCells);
3147 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3148 return EIO; /* Inappropriate ioctl for device */
3150 if (afs_pd_getInt(ain, &whichCell) != 0)
3153 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
3159 for (i = 0; i < AFS_MAXCELLHOSTS; i++) {
3160 if (tcell->cellHosts[i] == 0)
3162 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3165 for (;i < AFS_MAXCELLHOSTS; i++) {
3166 if (afs_pd_putInt(aout, 0) != 0)
3169 if (afs_pd_putString(aout, tcell->cellName) != 0)
3174 afs_PutCell(tcell, READ_LOCK);
3178 DECL_PIOCTL(PListAliases)
3180 afs_int32 whichAlias;
3181 struct cell_alias *tcalias = 0;
3184 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3185 return EIO; /* Inappropriate ioctl for device */
3187 if (afs_pd_getInt(ain, &whichAlias) != 0)
3190 tcalias = afs_GetCellAlias(whichAlias);
3191 if (tcalias == NULL)
3195 if (afs_pd_putString(aout, tcalias->alias) != 0)
3197 if (afs_pd_putString(aout, tcalias->cell) != 0)
3202 afs_PutCellAlias(tcalias);
3207 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3211 * \param[in] ain the name of the file in this dir to remove
3212 * \param[out] aout not in use
3215 * Error if some of the standard args aren't set
3217 * Error if the argument to remove is not a directory
3219 * Error if there is no cache to remove the mount point from or
3220 * if a vcache doesn't exist
3223 * Ensure that everything is OK before deleting the mountpoint.
3224 * If not, don't delete. Delete a mount point based on a file id.
3226 DECL_PIOCTL(PRemoveMount)
3231 struct sysname_info sysState;
3232 afs_size_t offset, len;
3233 struct afs_conn *tc;
3236 struct AFSFetchStatus OutDirStatus;
3237 struct VenusFid tfid;
3238 struct AFSVolSync tsync;
3239 struct rx_connection *rxconn;
3242 /* "ain" is the name of the file in this dir to remove */
3244 AFS_STATCNT(PRemoveMount);
3247 if (afs_pd_getStringPtr(ain, &name) != 0)
3250 code = afs_VerifyVCache(avc, areq);
3253 if (vType(avc) != VDIR)
3256 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3259 Check_AtSys(avc, name, &sysState, areq);
3260 ObtainReadLock(&tdc->lock);
3262 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3263 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3264 ReleaseReadLock(&tdc->lock);
3265 bufp = sysState.name;
3270 tfid.Cell = avc->f.fid.Cell;
3271 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3272 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
3273 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3275 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3282 if (tvc->mvstat != 1) {
3288 ObtainWriteLock(&tvc->lock, 230);
3289 code = afs_HandleLink(tvc, areq);
3291 if (tvc->linkData) {
3292 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3297 ReleaseWriteLock(&tvc->lock);
3298 osi_dnlc_purgedp(tvc);
3304 ObtainWriteLock(&avc->lock, 231);
3305 osi_dnlc_remove(avc, bufp, tvc);
3307 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK, &rxconn);
3309 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
3312 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3313 &OutDirStatus, &tsync);
3318 } while (afs_Analyze
3319 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
3320 SHARED_LOCK, NULL));
3325 ReleaseWriteLock(&avc->lock);
3329 /* we have the thing in the cache */
3330 ObtainWriteLock(&tdc->lock, 661);
3331 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3332 /* we can do it locally */
3333 code = afs_dir_Delete(tdc, bufp);
3335 ZapDCE(tdc); /* surprise error -- invalid value */
3339 ReleaseWriteLock(&tdc->lock);
3340 afs_PutDCache(tdc); /* drop ref count */
3342 avc->f.states &= ~CUnique; /* For the dfs xlator */
3343 ReleaseWriteLock(&avc->lock);
3346 if (sysState.allocked)
3347 osi_FreeLargeSpace(bufp);
3352 * VIOC_GETCELLSTATUS (35) - Get cell status info
3356 * \param[in] ain The cell you want status information on
3357 * \param[out] aout cell state (as a struct)
3359 * \retval EIO Error if the afs daemon hasn't started yet
3360 * \retval ENOENT Error if the cell doesn't exist
3362 * \post Returns the state of the cell as defined in a struct cell
3364 DECL_PIOCTL(PGetCellStatus)
3370 AFS_STATCNT(PGetCellStatus);
3371 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3372 return EIO; /* Inappropriate ioctl for device */
3374 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3377 tcell = afs_GetCellByName(cellName, READ_LOCK);
3380 temp = tcell->states;
3381 afs_PutCell(tcell, READ_LOCK);
3383 return afs_pd_putInt(aout, temp);
3387 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3392 * The cell you want to set information about, and the values you
3397 * \retval EIO Error if the afs daemon hasn't started yet
3398 * \retval EACCES Error if the user doesn't have super-user credentials
3401 * Set the state of the cell in a defined struct cell, based on
3402 * whether or not SetUID is allowed
3404 DECL_PIOCTL(PSetCellStatus)
3408 afs_int32 flags0, flags1;
3410 if (!afs_osi_suser(*acred))
3412 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3413 return EIO; /* Inappropriate ioctl for device */
3415 if (afs_pd_getInt(ain, &flags0) != 0)
3417 if (afs_pd_getInt(ain, &flags1) != 0)
3419 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3422 tcell = afs_GetCellByName(cellName, WRITE_LOCK);
3425 if (flags0 & CNoSUID)
3426 tcell->states |= CNoSUID;
3428 tcell->states &= ~CNoSUID;
3429 afs_PutCell(tcell, WRITE_LOCK);
3434 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3438 * \param[in] ain not in use (args in avc)
3439 * \param[out] aout not in use
3441 * \retval EINVAL Error if some of the standard args aren't set
3442 * \retval EIO Error if the afs daemon hasn't started yet
3445 * Flush all cached contents of a volume. Exactly what stays and what
3446 * goes depends on the platform.
3449 * Does not flush a file that a user has open and is using, because
3450 * it will be re-created on next write. Also purges the dnlc,
3451 * because things are screwed up.
3453 DECL_PIOCTL(PFlushVolumeData)
3459 afs_int32 cell, volume;
3460 struct afs_q *tq, *uq;
3461 #ifdef AFS_DARWIN80_ENV
3465 AFS_STATCNT(PFlushVolumeData);
3468 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3469 return EIO; /* Inappropriate ioctl for device */
3471 volume = avc->f.fid.Fid.Volume; /* who to zap */
3472 cell = avc->f.fid.Cell;
3475 * Clear stat'd flag from all vnodes from this volume; this will
3476 * invalidate all the vcaches associated with the volume.
3479 ObtainReadLock(&afs_xvcache);
3480 i = VCHashV(&avc->f.fid);
3481 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3484 if (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell) {
3485 if (tvc->f.states & CVInit) {
3486 ReleaseReadLock(&afs_xvcache);
3487 afs_osi_Sleep(&tvc->f.states);
3490 #ifdef AFS_DARWIN80_ENV
3491 if (tvc->f.states & CDeadVnode) {
3492 ReleaseReadLock(&afs_xvcache);
3493 afs_osi_Sleep(&tvc->f.states);
3499 if (vnode_ref(vp)) {
3508 ReleaseReadLock(&afs_xvcache);
3509 #ifdef AFS_BOZONLOCK_ENV
3510 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3512 ObtainWriteLock(&tvc->lock, 232);
3514 ObtainWriteLock(&afs_xcbhash, 458);
3515 afs_DequeueCallback(tvc);
3516 tvc->f.states &= ~(CStatd | CDirty);
3517 ReleaseWriteLock(&afs_xcbhash);
3518 if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
3519 osi_dnlc_purgedp(tvc);
3520 afs_TryToSmush(tvc, *acred, 1);
3521 ReleaseWriteLock(&tvc->lock);
3522 #ifdef AFS_BOZONLOCK_ENV
3523 afs_BozonUnlock(&tvc->pvnLock, tvc);
3525 #ifdef AFS_DARWIN80_ENV
3526 vnode_put(AFSTOV(tvc));
3528 ObtainReadLock(&afs_xvcache);
3530 /* our tvc ptr is still good until now */
3534 ReleaseReadLock(&afs_xvcache);
3537 ObtainWriteLock(&afs_xdcache, 328); /* needed to flush any stuff */
3538 for (i = 0; i < afs_cacheFiles; i++) {
3539 if (!(afs_indexFlags[i] & IFEverUsed))
3540 continue; /* never had any data */
3541 tdc = afs_GetDSlot(i, NULL);
3542 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3543 ReleaseReadLock(&tdc->tlock);
3544 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
3545 if (!(afs_indexFlags[i] & IFDataMod)) {
3546 /* if the file is modified, but has a ref cnt of only 1,
3547 * then someone probably has the file open and is writing
3548 * into it. Better to skip flushing such a file, it will be
3549 * brought back immediately on the next write anyway.
3551 * If we *must* flush, then this code has to be rearranged
3552 * to call afs_storeAllSegments() first */
3553 afs_FlushDCache(tdc);
3557 ReleaseReadLock(&tdc->tlock);
3559 afs_PutDCache(tdc); /* bumped by getdslot */
3561 ReleaseWriteLock(&afs_xdcache);
3563 ObtainReadLock(&afs_xvolume);
3564 for (i = 0; i < NVOLS; i++) {
3565 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3566 if (tv->volume == volume) {
3567 afs_ResetVolumeInfo(tv);
3572 ReleaseReadLock(&afs_xvolume);
3574 /* probably, a user is doing this, probably, because things are screwed up.
3575 * maybe it's the dnlc's fault? */
3582 * VIOCGETVCXSTATUS (41) - gets vnode x status
3587 * not in use (avc used)
3589 * vcxstat: the file id, the data version, any lock, the parent vnode,
3590 * the parent unique id, the trunc position, the callback, cbExpires,
3591 * what access is being made, what files are open,
3592 * any users executing/writing, the flock count, the states,
3596 * Error if some of the initial default arguments aren't set
3598 * Error if access to check the mode bits is denied
3601 * gets stats for the vnode, a struct listed in vcxstat
3603 DECL_PIOCTL(PGetVnodeXStatus)
3606 struct vcxstat stat;
3609 /* AFS_STATCNT(PGetVnodeXStatus); */
3612 code = afs_VerifyVCache(avc, areq);
3615 if (vType(avc) == VDIR)
3616 mode = PRSFS_LOOKUP;
3619 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3622 memset(&stat, 0, sizeof(struct vcxstat));
3623 stat.fid = avc->f.fid;
3624 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion));
3625 stat.lock = avc->lock;
3626 stat.parentVnode = avc->f.parent.vnode;
3627 stat.parentUnique = avc->f.parent.unique;
3628 hset(stat.flushDV, avc->flushDV);
3629 hset(stat.mapDV, avc->mapDV);
3630 stat.truncPos = avc->f.truncPos;
3631 { /* just grab the first two - won't break anything... */
3632 struct axscache *ac;
3634 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
3635 stat.randomUid[i] = ac->uid;
3636 stat.randomAccess[i] = ac->axess;
3639 stat.callback = afs_data_pointer_to_int32(avc->callback);
3640 stat.cbExpires = avc->cbExpires;
3641 stat.anyAccess = avc->f.anyAccess;
3642 stat.opens = avc->opens;
3643 stat.execsOrWriters = avc->execsOrWriters;
3644 stat.flockCount = avc->flockCount;
3645 stat.mvstat = avc->mvstat;
3646 stat.states = avc->f.states;
3647 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3651 DECL_PIOCTL(PGetVnodeXStatus2)
3654 struct vcxstat2 stat;
3659 code = afs_VerifyVCache(avc, areq);
3662 if (vType(avc) == VDIR)
3663 mode = PRSFS_LOOKUP;
3666 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
3669 memset(&stat, 0, sizeof(struct vcxstat2));
3671 stat.cbExpires = avc->cbExpires;
3672 stat.anyAccess = avc->f.anyAccess;
3673 stat.mvstat = avc->mvstat;
3674 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3676 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3681 * VIOC_AFS_SYSNAME (38) - Change @sys value
3685 * \param[in] ain new value for @sys
3686 * \param[out] aout count, entry, list (debug values?)
3689 * Error if afsd isn't running, the new sysname is too large,
3690 * the new sysname causes issues (starts with a . or ..),
3691 * there is no PAG set in the credentials, or the user of a PAG
3694 * Error if the user doesn't have super-user credentials
3697 * Set the value of @sys if these things work: if the input isn't
3698 * too long or if input doesn't start with . or ..
3701 * We require root for local sysname changes, but not for remote
3702 * (since we don't really believe remote uids anyway)
3703 * outname[] shouldn't really be needed- this is left as an
3704 * exercise for the reader.
3706 DECL_PIOCTL(PSetSysName)
3708 char *inname = NULL;
3709 char outname[MAXSYSNAME];
3710 afs_int32 setsysname;
3712 struct afs_exporter *exporter;
3713 struct unixuser *au;
3714 afs_int32 pag, error;
3715 int t, count, num = 0, allpags = 0;
3717 struct afs_pdata validate;
3719 AFS_STATCNT(PSetSysName);
3720 if (!afs_globalVFS) {
3721 /* Afsd is NOT running; disable it */
3722 #if defined(KERNEL_HAVE_UERROR)
3723 return (setuerror(EINVAL), EINVAL);
3728 if (afs_pd_getInt(ain, &setsysname) != 0)
3730 if (setsysname & 0x8000) {
3732 setsysname &= ~0x8000;
3737 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
3740 for (count = 0; count < setsysname; count++) {
3741 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3744 if (t >= MAXSYSNAME || t <= 0)
3746 /* check for names that can shoot us in the foot */
3747 if (inname[0] == '.' && (inname[1] == 0
3748 || (inname[1] == '.' && inname[2] == 0)))
3751 /* args ok, so go back to the beginning of that section */
3753 if (afs_pd_getStringPtr(ain, &inname) != 0)
3757 if (afs_cr_gid(*acred) == RMTUSER_REQ ||
3758 afs_cr_gid(*acred) == RMTUSER_REQ_PRIV) { /* Handles all exporters */
3759 if (allpags && afs_cr_gid(*acred) != RMTUSER_REQ_PRIV) {
3762 pag = PagInCred(*acred);
3764 return EINVAL; /* Better than panicing */
3766 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
3767 return EINVAL; /* Better than panicing */
3769 if (!(exporter = au->exporter)) {
3770 afs_PutUser(au, READ_LOCK);
3771 return EINVAL; /* Better than panicing */
3773 error = EXP_SYSNAME(exporter, inname, &sysnamelist,
3776 if (error == ENODEV)
3777 foundname = 0; /* sysname not set yet! */
3779 afs_PutUser(au, READ_LOCK);
3784 strcpy(outname, sysnamelist[0]);
3786 afs_PutUser(au, READ_LOCK);
3790 /* Not xlating, so local case */
3792 osi_Panic("PSetSysName: !afs_sysname\n");
3793 if (!setsysname) { /* user just wants the info */
3794 strcpy(outname, afs_sysname);
3795 foundname = afs_sysnamecount;
3796 sysnamelist = afs_sysnamelist;
3797 } else { /* Local guy; only root can change sysname */
3798 if (!afs_osi_suser(*acred))
3801 /* allpags makes no sense for local use */
3805 /* clear @sys entries from the dnlc, once afs_lookup can
3806 * do lookups of @sys entries and thinks it can trust them */
3807 /* privs ok, store the entry, ... */
3809 if (strlen(inname) >= MAXSYSNAME-1)
3811 strcpy(afs_sysname, inname);
3813 if (setsysname > 1) { /* ... or list */
3814 for (count = 1; count < setsysname; ++count) {
3815 if (!afs_sysnamelist[count])
3817 ("PSetSysName: no afs_sysnamelist entry to write\n");
3818 if (afs_pd_getString(ain, afs_sysnamelist[count],
3823 afs_sysnamecount = setsysname;
3828 if (afs_pd_putInt(aout, foundname) != 0)
3831 if (afs_pd_putString(aout, outname) != 0)
3833 for (count = 1; count < foundname; ++count) { /* ... or list. */
3834 if (!sysnamelist[count])
3836 ("PSetSysName: no afs_sysnamelist entry to read\n");
3837 t = strlen(sysnamelist[count]);
3838 if (t >= MAXSYSNAME)
3839 osi_Panic("PSetSysName: sysname entry garbled\n");
3840 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3848 /* sequential search through the list of touched cells is not a good
3849 * long-term solution here. For small n, though, it should be just
3850 * fine. Should consider special-casing the local cell for large n.
3851 * Likewise for PSetSPrefs.
3853 * s - number of ids in array l[] -- NOT index of last id
3854 * l - array of cell ids which have volumes that need to be sorted
3855 * vlonly - sort vl servers or file servers?
3858 ReSortCells_cb(struct cell *cell, void *arg)
3860 afs_int32 *p = (afs_int32 *) arg;
3861 afs_int32 *l = p + 1;
3864 for (i = 0; i < s; i++) {
3865 if (l[i] == cell->cellNum) {
3866 ObtainWriteLock(&cell->lock, 690);
3867 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS);
3868 ReleaseWriteLock(&cell->lock);
3876 ReSortCells(int s, afs_int32 * l, int vlonly)
3884 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3885 osi_Assert(p != NULL);
3887 memcpy(p + 1, l, s * sizeof(afs_int32));
3888 afs_TraverseCells(&ReSortCells_cb, p);
3889 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3893 ObtainReadLock(&afs_xvolume);
3894 for (i = 0; i < NVOLS; i++) {
3895 for (j = afs_volumes[i]; j; j = j->next) {
3896 for (k = 0; k < s; k++)
3897 if (j->cell == l[k]) {
3898 ObtainWriteLock(&j->lock, 233);
3899 afs_SortServers(j->serverHost, AFS_MAXHOSTS);
3900 ReleaseWriteLock(&j->lock);
3905 ReleaseReadLock(&afs_xvolume);
3909 static int debugsetsp = 0;
3911 afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3914 int i, j, k, matches, touchedSize;
3915 struct server *srvr = NULL;
3916 afs_int32 touched[34];
3920 for (k = 0; k < num; sp++, k++) {
3922 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3925 ObtainReadLock(&afs_xserver);
3927 i = SHash(sp->host.s_addr);
3928 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3929 if (sa->sa_ip == sp->host.s_addr) {
3931 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3932 || (sa->sa_portal == AFS_FSPORT);
3933 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3940 if (sa && matches) { /* found one! */
3942 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3944 sa->sa_iprank = sp->rank + afs_randomMod15();
3945 afs_SortOneServer(sa->server);
3948 /* if we don't know yet what cell it's in, this is moot */
3949 for (j = touchedSize - 1;
3950 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
3951 /* is it in our list of touched cells ? */ ;
3952 if (j < 0) { /* no, it's not */
3953 touched[touchedSize++] = srvr->cell->cellNum;
3954 if (touchedSize >= 32) { /* watch for ovrflow */
3955 ReleaseReadLock(&afs_xserver);
3956 ReSortCells(touchedSize, touched, vlonly);
3958 ObtainReadLock(&afs_xserver);
3964 ReleaseReadLock(&afs_xserver);
3965 /* if we didn't find one, start to create one. */
3966 /* Note that it doesn't have a cell yet... */
3968 afs_uint32 temp = sp->host.s_addr;
3970 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
3971 WRITE_LOCK, (afsUUID *) 0, 0);
3972 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
3973 afs_PutServer(srvr, WRITE_LOCK);
3975 } /* for all cited preferences */
3977 ReSortCells(touchedSize, touched, vlonly);
3982 * VIOC_SETPREFS (46) - Set server ranks
3984 * \param[in] ain the sprefs value you want the sprefs to be set to
3985 * \param[out] aout not in use
3988 * Error if the afs daemon hasn't started yet
3990 * Error if the user doesn't have super-user credentials
3992 * Error if the struct setsprefs is too large or if it multiplied
3993 * by the number of servers is too large
3995 * \post set the sprefs using the afs_setsprefs() function
3997 DECL_PIOCTL(PSetSPrefs)
3999 struct setspref *ssp;
4003 AFS_STATCNT(PSetSPrefs);
4005 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4006 return EIO; /* Inappropriate ioctl for device */
4008 if (!afs_osi_suser(*acred))
4011 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4012 * of arrays. But, i'm not quite brave enough to change it yet. */
4014 ainSize = ain->remaining;
4016 if (ainSize < sizeof(struct setspref))
4019 ssp = (struct setspref *)ainPtr;
4020 if (ainSize < (sizeof(struct setspref)
4021 + sizeof(struct spref) * ssp->num_servers-1))
4024 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4025 (ssp->flags & DBservers));
4030 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4032 * \param[in] ain the server preferences to be set
4033 * \param[out] aout not in use
4035 * \retval EIO Error if the afs daemon hasn't started yet
4036 * \retval EACCES Error if the user doesn't have super-user credentials
4038 * \post set the server preferences, calling a function
4040 * \notes this may only be performed by the local root user.
4042 DECL_PIOCTL(PSetSPrefs33)
4044 AFS_STATCNT(PSetSPrefs);
4045 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4046 return EIO; /* Inappropriate ioctl for device */
4049 if (!afs_osi_suser(*acred))
4052 afs_setsprefs((struct spref *)afs_pd_where(ain),
4053 afs_pd_remaining(ain) / sizeof(struct spref),
4059 * VIOC_GETSPREFS (43) - Get server ranks
4063 * \param[in] ain the server preferences to get
4064 * \param[out] aout the server preferences information
4066 * \retval EIO Error if the afs daemon hasn't started yet
4067 * \retval ENOENT Error if the sprefrequest is too large
4069 * \post Get the sprefs
4072 * in the hash table of server structs, all servers with the same
4073 * IP address; will be on the same overflow chain; This could be
4074 * sped slightly in some circumstances by having it cache the
4075 * immediately previous slot in the hash table and some
4076 * supporting information; Only reports file servers now.
4078 DECL_PIOCTL(PGetSPrefs)
4080 struct sprefrequest spin; /* input */
4081 struct sprefinfo *spout; /* output */
4082 struct spref *srvout; /* one output component */
4083 int i, j; /* counters for hash table traversal */
4084 struct server *srvr; /* one of CM's server structs */
4086 int vlonly; /* just return vlservers ? */
4089 AFS_STATCNT(PGetSPrefs);
4090 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4091 return EIO; /* Inappropriate ioctl for device */
4093 /* Work out from the size whether we've got a new, or old, style pioctl */
4094 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4095 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4100 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4102 vlonly = (spin.flags & DBservers);
4105 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4106 * quite brave enough to tackle it yet ...
4109 /* struct sprefinfo includes 1 server struct... that size gets added
4110 * in during the loop that follows.
4112 spout = afs_pd_inline(aout,
4113 sizeof(struct sprefinfo) - sizeof(struct spref));
4114 spout->next_offset = spin.offset;
4115 spout->num_servers = 0;
4116 srvout = spout->servers;
4118 ObtainReadLock(&afs_xserver);
4119 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
4120 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4121 if (spin.offset > (unsigned short)i) {
4122 continue; /* catch up to where we left off */
4124 spout->next_offset++;
4127 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4128 || (sa->sa_portal == AFS_FSPORT);
4130 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4131 /* only report ranks for vl servers */
4135 /* Check we've actually got the space we're about to use */
4136 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL) {
4137 ReleaseReadLock(&afs_xserver); /* no more room! */
4141 srvout->host.s_addr = sa->sa_ip;
4142 srvout->rank = sa->sa_iprank;
4143 spout->num_servers++;
4147 ReleaseReadLock(&afs_xserver);
4149 spout->next_offset = 0; /* start over from the beginning next time */
4154 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
4155 int afs_NFSRootOnly = 1;
4157 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4162 * an integer containing the desired exportee flags
4164 * an integer containing the current exporter flags
4166 * \retval ENODEV Error if the exporter doesn't exist
4167 * \retval EACCES Error if the user doesn't have super-user credentials
4170 * Changes the state of various values to reflect the change
4171 * of the export values between nfs and afs.
4173 * \notes Legacy code obtained from IBM.
4175 DECL_PIOCTL(PExportAfs)
4177 afs_int32 export, newint = 0;
4178 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4179 afs_int32 rempags = 0, pagcb = 0;
4180 struct afs_exporter *exporter;
4182 AFS_STATCNT(PExportAfs);
4183 if (afs_pd_getInt(ain, &handleValue) != 0)
4185 type = handleValue >> 24;
4190 exporter = exporter_find(type);
4192 export = handleValue & 3;
4193 changestate = handleValue & 0xfff;
4194 smounts = (handleValue >> 2) & 3;
4195 pwsync = (handleValue >> 4) & 3;
4196 convmode = (handleValue >> 6) & 3;
4197 rempags = (handleValue >> 8) & 3;
4198 pagcb = (handleValue >> 10) & 3;
4200 changestate = (handleValue >> 16) & 0x1;
4201 convmode = (handleValue >> 16) & 0x2;
4202 pwsync = (handleValue >> 16) & 0x4;
4203 smounts = (handleValue >> 16) & 0x8;
4204 export = handleValue & 0xff;
4207 /* Failed finding desired exporter; */
4211 handleValue = exporter->exp_states;
4212 if (afs_pd_putInt(aout, handleValue) != 0)
4215 if (!afs_osi_suser(*acred))
4216 return EACCES; /* Only superuser can do this */
4220 exporter->exp_states |= EXP_EXPORTED;
4222 exporter->exp_states &= ~EXP_EXPORTED;
4226 exporter->exp_states |= EXP_UNIXMODE;
4228 exporter->exp_states &= ~EXP_UNIXMODE;
4232 exporter->exp_states |= EXP_PWSYNC;
4234 exporter->exp_states &= ~EXP_PWSYNC;
4238 afs_NFSRootOnly = 0;
4239 exporter->exp_states |= EXP_SUBMOUNTS;
4241 afs_NFSRootOnly = 1;
4242 exporter->exp_states &= ~EXP_SUBMOUNTS;
4247 exporter->exp_states |= EXP_CLIPAGS;
4249 exporter->exp_states &= ~EXP_CLIPAGS;
4253 exporter->exp_states |= EXP_CALLBACK;
4255 exporter->exp_states &= ~EXP_CALLBACK;
4257 handleValue = exporter->exp_states;
4258 if (afs_pd_putInt(aout, handleValue) != 0)
4262 exporter->exp_states |= EXP_EXPORTED;
4264 exporter->exp_states &= ~EXP_EXPORTED;
4266 exporter->exp_states |= EXP_UNIXMODE;
4268 exporter->exp_states &= ~EXP_UNIXMODE;
4270 exporter->exp_states |= EXP_PWSYNC;
4272 exporter->exp_states &= ~EXP_PWSYNC;
4274 afs_NFSRootOnly = 0;
4275 exporter->exp_states |= EXP_SUBMOUNTS;
4277 afs_NFSRootOnly = 1;
4278 exporter->exp_states &= ~EXP_SUBMOUNTS;
4287 * VIOC_GAG (44) - Silence Cache Manager
4291 * \param[in] ain the flags to either gag or de-gag the cache manager
4292 * \param[out] aout not in use
4294 * \retval EACCES Error if the user doesn't have super-user credentials
4296 * \post set the gag flags, then show these flags
4300 struct gaginfo *gagflags;
4302 if (!afs_osi_suser(*acred))
4305 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4306 if (gagflags == NULL)
4308 afs_showflags = gagflags->showflags;
4314 * VIOC_TWIDDLE (45) - Adjust RX knobs
4318 * \param[in] ain the previous settings of the 'knobs'
4319 * \param[out] aout not in use
4321 * \retval EACCES Error if the user doesn't have super-user credentials
4323 * \post build out the struct rxp, from a struct rx
4325 DECL_PIOCTL(PTwiddleRx)
4327 struct rxparams *rxp;
4329 if (!afs_osi_suser(*acred))
4332 rxp = afs_pd_inline(ain, sizeof(*rxp));
4336 if (rxp->rx_initReceiveWindow)
4337 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4338 if (rxp->rx_maxReceiveWindow)
4339 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4340 if (rxp->rx_initSendWindow)
4341 rx_initSendWindow = rxp->rx_initSendWindow;
4342 if (rxp->rx_maxSendWindow)
4343 rx_maxSendWindow = rxp->rx_maxSendWindow;
4344 if (rxp->rxi_nSendFrags)
4345 rxi_nSendFrags = rxp->rxi_nSendFrags;
4346 if (rxp->rxi_nRecvFrags)
4347 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4348 if (rxp->rxi_OrphanFragSize)
4349 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4350 if (rxp->rx_maxReceiveSize) {
4351 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4352 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4354 if (rxp->rx_MyMaxSendSize)
4355 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4361 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4365 * \param[in] ain not in use
4366 * \param[out] aout initial cache manager params
4369 * Error if the initial parameters are bigger than some PIGGYSIZE
4371 * \post return the initial cache manager parameters
4373 DECL_PIOCTL(PGetInitParams)
4375 if (sizeof(struct cm_initparams) > PIGGYSIZE)
4378 return afs_pd_putBytes(aout, &cm_initParams,
4379 sizeof(struct cm_initparams));
4382 #ifdef AFS_SGI65_ENV
4383 /* They took crget() from us, so fake it. */
4388 cr = crdup(get_current_cred());
4389 memset(cr, 0, sizeof(cred_t));
4390 #if CELL || CELL_PREPARE
4398 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4402 * \param[in] ain not in use
4403 * \param[out] aout value of cryptall
4405 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4407 DECL_PIOCTL(PGetRxkcrypt)
4409 return afs_pd_putInt(aout, cryptall);
4413 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4417 * \param[in] ain the argument whether or not things should be encrypted
4418 * \param[out] aout not in use
4421 * Error if the user doesn't have super-user credentials
4423 * Error if the input is too big, or if the input is outside the
4424 * bounds of what it can be set to
4426 * \post set whether or not things should be encrypted
4429 * may need to be modified at a later date to take into account
4430 * other values for cryptall (beyond true or false)
4432 DECL_PIOCTL(PSetRxkcrypt)
4436 if (!afs_osi_suser(*acred))
4438 if (afs_pd_getInt(ain, &tmpval) != 0)
4440 /* if new mappings added later this will need to be changed */
4441 if (tmpval != 0 && tmpval != 1)
4447 #ifdef AFS_NEED_CLIENTCONTEXT
4449 * Create new credentials to correspond to a remote user with given
4450 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4451 * provide pioctl (and other) services to foreign clients (i.e. nfs
4452 * clients) by using this call to `become' the client.
4455 #define PIOCTL_HEADER 6
4457 HandleClientContext(struct afs_ioctl *ablob, int *com,
4458 afs_ucred_t **acred, afs_ucred_t *credp)
4461 afs_uint32 hostaddr;
4462 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4463 struct afs_exporter *exporter, *outexporter;
4464 afs_ucred_t *newcred;
4465 struct unixuser *au;
4466 afs_uint32 comp = *com & 0xff00;
4468 #if defined(AFS_SUN510_ENV)
4472 #if defined(AFS_SGIMP_ENV)
4473 osi_Assert(ISAFS_GLOCK());
4475 AFS_STATCNT(HandleClientContext);
4476 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4477 /* Must at least include the PIOCTL_HEADER header words
4478 * required by the protocol */
4479 return EINVAL; /* Too small to be good */
4481 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
4482 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
4484 osi_FreeLargeSpace(inData);
4488 /* Extract information for remote user */
4489 hostaddr = *((afs_uint32 *) ain);
4490 ain += sizeof(hostaddr);
4491 uid = *((afs_uint32 *) ain);
4493 g0 = *((afs_uint32 *) ain);
4495 g1 = *((afs_uint32 *) ain);
4497 *com = *((afs_uint32 *) ain);
4498 ain += sizeof(afs_int32);
4499 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4502 * Of course, one must be root for most of these functions, but
4503 * we'll allow (for knfs) you to set things if the pag is 0 and
4504 * you're setting tokens or unlogging.
4507 if (!afs_osi_suser(credp)) {
4508 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4509 /* Since SGI's suser() returns explicit failure after the call.. */
4512 /* check for acceptable opcodes for normal folks, which are, so far,
4513 * get/set tokens, sysname, and unlog.
4515 if (i != 9 && i != 3 && i != 38 && i != 8) {
4516 osi_FreeLargeSpace(inData);
4521 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4522 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4523 osi_FreeLargeSpace(inData);
4526 * We map uid 0 to nobody to match the mapping that the nfs
4527 * server does and to ensure that the suser() calls in the afs
4528 * code fails for remote client roots.
4530 uid = afs_nobody; /* NFS_NOBODY == -2 */
4534 #ifdef AFS_AIX41_ENV
4537 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV : RMTUSER_REQ);
4538 #ifdef AFS_AIX51_ENV
4539 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4540 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4541 #elif defined(AFS_LINUX26_ENV)
4542 # ifdef AFS_LINUX26_ONEGROUP_ENV
4543 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4544 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4545 h = ((g0-0x3f00) >> 14);
4546 h = ((g1-0x3f00) >> 14) + h + h + h;
4547 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4549 afs_set_cr_group_info(newcred, groups_alloc(2));
4550 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4551 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4553 #elif defined(AFS_SUN510_ENV)
4556 crsetgroups(newcred, 2, gids);
4558 newcred->cr_groups[0] = g0;
4559 newcred->cr_groups[1] = g1;
4562 newcred->cr_ngrps = 2;
4563 #elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4564 # if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV)
4565 newcred->cr_ngroups = 2;
4567 for (i = 2; i < NGROUPS; i++)
4568 newcred->cr_groups[i] = NOGROUP;
4571 if (!(exporter = exporter_find(exporter_type))) {
4572 /* Exporter wasn't initialized or an invalid exporter type */
4576 if (exporter->exp_states & EXP_PWSYNC) {
4577 if (uid != afs_cr_uid(credp)) {
4579 return ENOEXEC; /* XXX Find a better errno XXX */
4582 afs_set_cr_uid(newcred, uid); /* Only temporary */
4583 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
4584 /* The client's pag is the only unique identifier for it */
4585 afs_set_cr_uid(newcred, pag);
4587 if (!code && *com == PSETPAG) {
4588 /* Special case for 'setpag' */
4589 afs_uint32 pagvalue = genpag();
4591 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
4593 * Note that we leave the 'outexporter' struct held so it won't
4596 au->exporter = outexporter;
4597 if (ablob->out_size >= 4) {
4598 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
4601 afs_PutUser(au, WRITE_LOCK);
4604 return PSETPAG; /* Special return for setpag */
4606 EXP_RELE(outexporter);
4609 *com = (*com) | comp;
4612 #endif /* AFS_NEED_CLIENTCONTEXT */
4616 * VIOC_GETCPREFS (50) - Get client interface
4620 * \param[in] ain sprefrequest input
4621 * \param[out] aout spref information
4623 * \retval EIO Error if the afs daemon hasn't started yet
4624 * \retval EINVAL Error if some of the standard args aren't set
4627 * get all interface addresses and other information of the client
4630 DECL_PIOCTL(PGetCPrefs)
4632 struct sprefrequest *spin; /* input */
4633 struct sprefinfo *spout; /* output */
4634 struct spref *srvout; /* one output component */
4638 AFS_STATCNT(PGetCPrefs);
4639 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4640 return EIO; /* Inappropriate ioctl for device */
4642 spin = afs_pd_inline(ain, sizeof(*spin));
4646 /* Output spout relies on writing past the end of arrays. It's horrible,
4647 * but I'm not quite brave enough to tackle it yet */
4648 spout = (struct sprefinfo *)aout->ptr;
4650 maxNumber = spin->num_servers; /* max addrs this time */
4651 srvout = spout->servers;
4653 ObtainReadLock(&afs_xinterface);
4655 /* copy out the client interface information from the
4656 * kernel data structure "interface" to the output buffer
4658 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4659 && (j < maxNumber); i++, j++, srvout++)
4660 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4662 spout->num_servers = j;
4663 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4665 if (i >= afs_cb_interface.numberOfInterfaces)
4666 spout->next_offset = 0; /* start from beginning again */
4668 spout->next_offset = spin->offset + j;
4670 ReleaseReadLock(&afs_xinterface);
4675 * VIOC_SETCPREFS (51) - Set client interface
4679 * \param[in] ain the interfaces you want set
4680 * \param[out] aout not in use
4682 * \retval EIO Error if the afs daemon hasn't started yet
4683 * \retval EINVAL Error if the input is too large for the struct
4684 * \retval ENOMEM Error if there are too many servers
4686 * \post set the callbak interfaces addresses to those of the hosts
4688 DECL_PIOCTL(PSetCPrefs)
4692 struct setspref *sin;
4695 AFS_STATCNT(PSetCPrefs);
4696 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4697 return EIO; /* Inappropriate ioctl for device */
4699 /* Yuck. Input to this function relies on reading past the end of
4700 * structures. Bodge it for now.
4703 ainSize = ain->remaining;
4705 sin = (struct setspref *)ainPtr;
4707 if (ainSize < sizeof(struct setspref))
4709 #if 0 /* num_servers is unsigned */
4710 if (sin->num_servers < 0)
4713 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
4716 ObtainWriteLock(&afs_xinterface, 412);
4717 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4718 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4719 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4721 ReleaseWriteLock(&afs_xinterface);
4726 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4731 * the last part of a path to a mount point, which tells us what to flush
4736 * Error if some of the initial arguments aren't set
4738 * Error if the initial argument for the mount point isn't a directory
4740 * Error if the dcache entry isn't set
4743 * remove all of the mount data from the dcache regarding a
4744 * certain mount point
4746 DECL_PIOCTL(PFlushMount)
4751 struct VenusFid tfid;
4754 struct sysname_info sysState;
4755 afs_size_t offset, len;
4757 AFS_STATCNT(PFlushMount);
4761 if (afs_pd_getStringPtr(ain, &mount) != 0)
4764 code = afs_VerifyVCache(avc, areq);
4767 if (vType(avc) != VDIR) {
4770 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4773 Check_AtSys(avc, mount, &sysState, areq);
4774 ObtainReadLock(&tdc->lock);
4776 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4777 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
4778 ReleaseReadLock(&tdc->lock);
4779 afs_PutDCache(tdc); /* we're done with the data */
4780 bufp = sysState.name;
4784 tfid.Cell = avc->f.fid.Cell;
4785 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4786 if (!tfid.Fid.Unique && (avc->f.states & CForeign)) {
4787 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
4789 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4795 if (tvc->mvstat != 1) {
4800 #ifdef AFS_BOZONLOCK_ENV
4801 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4803 ObtainWriteLock(&tvc->lock, 649);
4804 ObtainWriteLock(&afs_xcbhash, 650);
4805 afs_DequeueCallback(tvc);
4806 tvc->f.states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
4807 ReleaseWriteLock(&afs_xcbhash);
4808 /* now find the disk cache entries */
4809 afs_TryToSmush(tvc, *acred, 1);
4810 osi_dnlc_purgedp(tvc);
4811 if (tvc->linkData && !(tvc->f.states & CCore)) {
4812 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4813 tvc->linkData = NULL;
4815 ReleaseWriteLock(&tvc->lock);
4816 #ifdef AFS_BOZONLOCK_ENV
4817 afs_BozonUnlock(&tvc->pvnLock, tvc);
4821 if (sysState.allocked)
4822 osi_FreeLargeSpace(bufp);
4827 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4831 * \param[in] ain the flags that control which stats to use
4832 * \param[out] aout not in use
4834 * \retval EACCES Error if the user doesn't have super-user credentials
4835 * \retval EINVAL Error if the flag input is too long
4838 * either enable process RPCStats, disable process RPCStats,
4839 * or clear the process RPCStats
4841 DECL_PIOCTL(PRxStatProc)
4845 if (!afs_osi_suser(*acred))
4848 if (afs_pd_getInt(ain, &flags) != 0)
4851 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4854 if (flags & AFSCALL_RXSTATS_ENABLE) {
4855 rx_enableProcessRPCStats();
4857 if (flags & AFSCALL_RXSTATS_DISABLE) {
4858 rx_disableProcessRPCStats();
4860 if (flags & AFSCALL_RXSTATS_CLEAR) {
4861 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
4868 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4872 * \param[in] ain the flags that control which statistics to use
4873 * \param[out] aout not in use
4875 * \retval EACCES Error if the user doesn't have super-user credentials
4876 * \retval EINVAL Error if the flag input is too long
4879 * either enable peer RPCStatws, disable peer RPCStats,
4880 * or clear the peer RPCStats
4882 DECL_PIOCTL(PRxStatPeer)
4886 if (!afs_osi_suser(*acred))
4889 if (afs_pd_getInt(ain, &flags) != 0)
4892 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK))
4895 if (flags & AFSCALL_RXSTATS_ENABLE) {
4896 rx_enablePeerRPCStats();
4898 if (flags & AFSCALL_RXSTATS_DISABLE) {
4899 rx_disablePeerRPCStats();
4901 if (flags & AFSCALL_RXSTATS_CLEAR) {
4902 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
4907 DECL_PIOCTL(PPrefetchFromTape)
4909 afs_int32 code, code1;
4910 afs_int32 bytes, outval;
4911 struct afs_conn *tc;
4912 struct rx_call *tcall;
4913 struct AFSVolSync tsync;
4914 struct AFSFetchStatus OutStatus;
4915 struct AFSCallBack CallBack;
4916 struct VenusFid tfid;
4919 struct rx_connection *rxconn;
4921 AFS_STATCNT(PSetAcl);
4925 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4927 Fid = &avc->f.fid.Fid;
4929 tfid.Cell = avc->f.fid.Cell;
4930 tfid.Fid.Volume = Fid->Volume;
4931 tfid.Fid.Vnode = Fid->Vnode;
4932 tfid.Fid.Unique = Fid->Unique;
4934 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
4936 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4937 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid);
4940 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
4941 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid);
4944 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
4948 tcall = rx_NewCall(rxconn);
4950 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4953 bytes = rx_Read(tcall, (char *)&outval, sizeof(afs_int32));
4955 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
4957 code1 = rx_EndCall(tcall, code);
4961 } while (afs_Analyze
4962 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
4963 SHARED_LOCK, NULL));
4964 /* This call is done only to have the callback things handled correctly */
4965 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
4971 return afs_pd_putInt(aout, outval);
4977 struct afs_conn *tc;
4979 struct FsCmdInputs *Inputs;
4980 struct FsCmdOutputs *Outputs;
4981 struct VenusFid tfid;
4983 struct rx_connection *rxconn;
4988 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
4992 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
4993 if (Outputs == NULL)
4998 Fid = &avc->f.fid.Fid;
5000 tfid.Cell = avc->f.fid.Cell;
5001 tfid.Fid.Volume = Fid->Volume;
5002 tfid.Fid.Vnode = Fid->Vnode;
5003 tfid.Fid.Unique = Fid->Unique;
5005 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
5006 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
5007 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
5011 if (Inputs->command) {
5013 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK, &rxconn);
5017 RXAFS_FsCmd(rxconn, Fid, Inputs,
5018 (struct FsCmdOutputs *)aout);
5022 } while (afs_Analyze
5023 (tc, rxconn, code, &tvc->f.fid, areq,
5024 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
5025 /* This call is done to have the callback things handled correctly */
5026 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5027 } else { /* just a status request, return also link data */
5029 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5030 Outputs->chars[0] = 0;
5031 if (vType(tvc) == VLNK) {
5032 ObtainWriteLock(&tvc->lock, 555);
5033 if (afs_HandleLink(tvc, areq) == 0)
5034 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
5035 ReleaseWriteLock(&tvc->lock);
5044 DECL_PIOCTL(PNewUuid)
5046 /*AFS_STATCNT(PNewUuid); */
5047 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5048 return EIO; /* Inappropriate ioctl for device */
5050 if (!afs_osi_suser(*acred))
5053 ObtainWriteLock(&afs_xinterface, 555);
5054 afs_uuid_create(&afs_cb_interface.uuid);
5055 ReleaseWriteLock(&afs_xinterface);
5056 ForceAllNewConnections();
5060 #if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5062 DECL_PIOCTL(PSetCachingThreshold)
5064 afs_int32 getting = 1;
5065 afs_int32 setting = 1;
5066 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5068 if (afs_pd_getInt(ain, &threshold) != 0)
5074 if (setting == 0 && getting == 0)
5078 * If setting, set first, and return the value now in effect
5081 if (!afs_osi_suser(*acred))
5083 cache_bypass_threshold = threshold;
5084 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5085 /* TODO: move to separate pioctl, or enhance pioctl */
5086 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5089 /* Return the current size threshold */
5091 return afs_pd_putInt(aout, cache_bypass_threshold);
5096 #endif /* defined(AFS_CACHE_BYPASS) */
5098 DECL_PIOCTL(PCallBackAddr)
5101 afs_uint32 addr, code;
5105 struct afs_conn *tc;
5107 struct unixuser *tu;
5108 struct srvAddr **addrs;
5109 struct rx_connection *rxconn;
5111 /*AFS_STATCNT(PCallBackAddr); */
5112 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5113 return EIO; /* Inappropriate ioctl for device */
5115 if (!afs_osi_suser(acred))
5118 if (afs_pd_getInt(ain, &addr) != 0)
5121 ObtainReadLock(&afs_xinterface);
5122 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5123 if (afs_cb_interface.addr_in[i] == addr)
5127 ReleaseWriteLock(&afs_xinterface);
5129 if (afs_cb_interface.addr_in[i] != addr)
5132 ObtainReadLock(&afs_xserver); /* Necessary? */
5133 ObtainReadLock(&afs_xsrvAddr);
5136 for (i = 0; i < NSERVERS; i++) {
5137 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5142 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5143 osi_Assert(addrs != NULL);
5145 for (i = 0; i < NSERVERS; i++) {
5146 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5147 if (j >= srvAddrCount)
5153 ReleaseReadLock(&afs_xsrvAddr);
5154 ReleaseReadLock(&afs_xserver);
5156 for (i = 0; i < j; i++) {
5162 /* vlserver has no callback conn */
5163 if (sa->sa_portal == AFS_VLPORT) {
5167 if (!ts->cell) /* not really an active server, anyway, it must */
5168 continue; /* have just been added by setsprefs */
5170 /* get a connection, even if host is down; bumps conn ref count */
5171 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
5172 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5173 1 /*force */ , 1 /*create */ , SHARED_LOCK, &rxconn);
5174 afs_PutUser(tu, SHARED_LOCK);
5178 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
5179 if (sa->sa_flags & SRVADDR_ISDOWN) {
5180 rx_SetConnDeadTime(rxconn, 3);
5182 #ifdef RX_ENABLE_LOCKS
5184 #endif /* RX_ENABLE_LOCKS */
5185 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
5186 #ifdef RX_ENABLE_LOCKS
5188 #endif /* RX_ENABLE_LOCKS */
5190 afs_PutConn(tc, rxconn, SHARED_LOCK); /* done with it now */
5191 } /* Outer loop over addrs */
5192 #endif /* UKERNEL */
5196 DECL_PIOCTL(PDiscon)
5198 static afs_int32 mode = 1; /* Start up in 'off' */
5199 afs_int32 force = 0;
5202 struct vrequest lreq;
5204 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5205 if (!afs_osi_suser(*acred))
5209 mode = flags[0] - 1;
5211 afs_ConflictPolicy = flags[1] - 1;
5215 /* Fake InitReq support for UID override */
5216 memset(&lreq, 0, sizeof(lreq));
5217 lreq.uid = flags[3];
5218 areq = &lreq; /* override areq we got */
5222 * All of these numbers are hard coded in fs.c. If they
5223 * change here, they should change there and vice versa
5226 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5227 if (!AFS_IS_DISCONNECTED) {
5228 ObtainWriteLock(&afs_discon_lock, 999);
5229 afs_DisconGiveUpCallbacks();
5230 afs_RemoveAllConns();
5231 afs_is_disconnected = 1;
5232 afs_is_discon_rw = 1;
5233 ReleaseWriteLock(&afs_discon_lock);
5236 case 1: /* Fully connected, ("online" mode). */
5237 ObtainWriteLock(&afs_discon_lock, 998);
5240 afs_MarkAllServersUp();
5241 code = afs_ResyncDisconFiles(areq, *acred);
5244 if (code && !force) {
5245 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5246 "Please retry or use \"force\".\n");
5250 afs_DisconDiscardAll(*acred);
5252 afs_ClearAllStatdFlag();
5253 afs_is_disconnected = 0;
5254 afs_is_discon_rw = 0;
5255 afs_warnuser("\nSync succeeded. You are back online.\n");
5258 ReleaseWriteLock(&afs_discon_lock);
5270 return afs_pd_putInt(aout, mode);
5273 #define MAX_PIOCTL_TOKENS 10
5275 DECL_PIOCTL(PSetTokens2)
5278 int i, cellNum, primaryFlag;
5280 struct unixuser *tu;
5281 struct vrequest treq;
5282 struct ktc_setTokenData tokenSet;
5283 struct ktc_tokenUnion decodedToken;
5285 memset(&tokenSet, 0, sizeof(tokenSet));
5287 AFS_STATCNT(PSetTokens2);
5288 if (!afs_resourceinit_flag)
5291 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5293 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5294 afs_pd_xdrEnd(ain, &xdrs);
5298 afs_pd_xdrEnd(ain, &xdrs);
5300 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5301 * process from using up the whole of the kernel memory by allocating
5304 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS) {
5305 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5309 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5311 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5315 if (tokenSet.flags & AFSTOKEN_EX_SETPAG) {
5316 if (_settok_setParentPag(acred) == 0) {
5317 afs_InitReq(&treq, *acred);
5322 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK);
5323 /* Free any tokens that we've already got */
5324 afs_FreeTokens(&tu->tokens);
5326 /* Iterate across the set of tokens we've received, and stuff them
5327 * into this user's tokenJar
5329 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5330 xdrmem_create(&xdrs,
5331 tokenSet.tokens.tokens_val[i].token_opaque_val,
5332 tokenSet.tokens.tokens_val[i].token_opaque_len,
5335 memset(&decodedToken, 0, sizeof(decodedToken));
5336 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5344 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5345 /* This is untidy - the old token interface supported passing
5346 * the primaryFlag as part of the token interface. Current
5347 * OpenAFS userland never sets this, but it's specified as being
5348 * part of the XG interface, so we should probably still support
5349 * it. Rather than add it to our AddToken interface, just handle
5352 if (decodedToken.at_type == AFSTOKEN_UNION_KAD) {
5353 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5357 /* XXX - We should think more about destruction here. It's likely that
5358 * there is key material in what we're about to throw away, which
5359 * we really should zero out before giving back to the allocator */
5360 xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5363 tu->states |= UHasTokens;
5364 tu->states &= ~UTokensBad;
5365 afs_SetPrimary(tu, primaryFlag);
5366 tu->tokenTime = osi_Time();
5368 xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5371 afs_ResetUserConns(tu);
5372 afs_PutUser(tu, WRITE_LOCK);
5377 DECL_PIOCTL(PGetTokens2)
5380 struct unixuser *tu = NULL;
5382 char *cellName = NULL;
5387 struct ktc_setTokenData tokenSet;
5389 AFS_STATCNT(PGetTokens);
5390 if (!afs_resourceinit_flag)
5393 memset(&tokenSet, 0, sizeof(tokenSet));
5395 /* No input data - return tokens for primary cell */
5396 /* 4 octets of data is an iterator count */
5397 /* Otherwise, treat as string & return tokens for that cell name */
5399 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5400 /* Integer iterator - return tokens for the n'th cell found for user */
5401 if (afs_pd_getInt(ain, &iterator) != 0)
5403 tu = getNthCell(areq->uid, iterator);
5405 if (afs_pd_remaining(ain) > 0) {
5406 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5411 code = _settok_tokenCell(cellName, &cellNum, NULL);
5414 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK);
5421 if (!(tu->states & UHasTokens)
5422 || !afs_HasValidTokens(tu->tokens, now)) {
5423 tu->states |= (UTokensBad | UNeedsReset);
5424 afs_PutUser(tu, READ_LOCK);
5428 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5432 cell = afs_GetCell(tu->cell, READ_LOCK);
5433 tokenSet.cell = cell->cellName;
5434 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5435 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5439 afs_pd_xdrEnd(aout, &xdrs);
5442 tokenSet.cell = NULL;
5445 afs_PutUser(tu, READ_LOCK);
5447 afs_PutCell(cell, READ_LOCK);
5448 xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5453 DECL_PIOCTL(PNFSNukeCreds)
5457 struct unixuser *tu;
5459 AFS_STATCNT(PUnlog);
5460 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5461 return EIO; /* Inappropriate ioctl for device */
5463 if (afs_pd_getUint(ain, &addr) != 0)
5466 if (afs_cr_gid(*acred) == RMTUSER_REQ_PRIV && !addr) {
5467 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK);
5468 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter))) {
5469 afs_PutUser(tu, SHARED_LOCK);
5472 afs_PutUser(tu, SHARED_LOCK);
5473 } else if (!afs_osi_suser(acred)) {
5477 ObtainWriteLock(&afs_xuser, 227);
5478 for (i = 0; i < NUSERS; i++) {
5479 for (tu = afs_users[i]; tu; tu = tu->next) {
5480 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)) {
5482 ReleaseWriteLock(&afs_xuser);
5484 afs_LockUser(tu, WRITE_LOCK, 367);
5486 tu->states &= ~UHasTokens;
5487 afs_FreeTokens(&tu->tokens);
5488 afs_ResetUserConns(tu);
5489 afs_PutUser(tu, WRITE_LOCK);
5490 ObtainWriteLock(&afs_xuser, 228);
5492 /* set the expire times to 0, causes
5493 * afs_GCUserData to remove this entry
5496 #endif /* UKERNEL */
5500 ReleaseWriteLock(&afs_xuser);