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"
16 #include "afs/sysincludes.h" /* Standard vendor system headers */
18 #include "h/syscallargs.h"
21 #include "h/sysproto.h"
23 #include "afsincludes.h" /* Afs-based standard headers */
24 #include "afs/afs_stats.h" /* afs statistics */
26 #include "rx/rx_globals.h"
28 struct VenusFid afs_rootFid;
29 afs_int32 afs_waitForever = 0;
30 short afs_waitForeverCount = 0;
31 afs_int32 afs_showflags = GAGUSER | GAGCONSOLE; /* show all messages */
33 #define DECL_PIOCTL(x) static int x(struct vcache *avc, int afun, struct vrequest *areq, \
34 char *ain, char *aout, afs_int32 ainSize, afs_int32 *aoutSize, \
35 struct AFS_UCRED **acred)
37 /* Prototypes for pioctl routines */
40 DECL_PIOCTL(PStoreBehind);
45 DECL_PIOCTL(PGetFileCell);
46 DECL_PIOCTL(PGetWSCell);
47 DECL_PIOCTL(PGetUserCell);
48 DECL_PIOCTL(PSetTokens);
49 DECL_PIOCTL(PGetVolumeStatus);
50 DECL_PIOCTL(PSetVolumeStatus);
52 DECL_PIOCTL(PNewStatMount);
53 DECL_PIOCTL(PGetTokens);
55 DECL_PIOCTL(PMariner);
56 DECL_PIOCTL(PCheckServers);
57 DECL_PIOCTL(PCheckVolNames);
58 DECL_PIOCTL(PCheckAuth);
59 DECL_PIOCTL(PFindVolume);
60 DECL_PIOCTL(PViceAccess);
61 DECL_PIOCTL(PSetCacheSize);
62 DECL_PIOCTL(PGetCacheSize);
63 DECL_PIOCTL(PRemoveCallBack);
64 DECL_PIOCTL(PNewCell);
65 DECL_PIOCTL(PNewAlias);
66 DECL_PIOCTL(PListCells);
67 DECL_PIOCTL(PListAliases);
68 DECL_PIOCTL(PRemoveMount);
69 DECL_PIOCTL(PVenusLogging);
70 DECL_PIOCTL(PGetCellStatus);
71 DECL_PIOCTL(PSetCellStatus);
72 DECL_PIOCTL(PFlushVolumeData);
73 DECL_PIOCTL(PGetVnodeXStatus);
74 DECL_PIOCTL(PSetSysName);
75 DECL_PIOCTL(PSetSPrefs);
76 DECL_PIOCTL(PSetSPrefs33);
77 DECL_PIOCTL(PGetSPrefs);
78 DECL_PIOCTL(PExportAfs);
80 DECL_PIOCTL(PTwiddleRx);
81 DECL_PIOCTL(PGetInitParams);
82 DECL_PIOCTL(PGetRxkcrypt);
83 DECL_PIOCTL(PSetRxkcrypt);
84 DECL_PIOCTL(PGetCPrefs);
85 DECL_PIOCTL(PSetCPrefs);
86 DECL_PIOCTL(PFlushMount);
87 DECL_PIOCTL(PRxStatProc);
88 DECL_PIOCTL(PRxStatPeer);
89 DECL_PIOCTL(PPrefetchFromTape);
90 DECL_PIOCTL(PResidencyCmd);
91 DECL_PIOCTL(PCallBackAddr);
94 * A macro that says whether we're going to need HandleClientContext().
95 * This is currently used only by the nfs translator.
97 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
98 #define AFS_NEED_CLIENTCONTEXT
101 /* Prototypes for private routines */
102 #ifdef AFS_NEED_CLIENTCONTEXT
103 static int HandleClientContext(struct afs_ioctl *ablob, int *com,
104 struct AFS_UCRED **acred,
105 struct AFS_UCRED *credp);
107 int HandleIoctl(register struct vcache *avc, register afs_int32 acom,
108 struct afs_ioctl *adata);
109 int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
110 register struct afs_ioctl *ablob, int afollow,
111 struct AFS_UCRED **acred);
112 static int Prefetch(char *apath, struct afs_ioctl *adata, int afollow,
113 struct AFS_UCRED *acred);
116 static int (*(VpioctlSw[])) () = {
121 PGetVolumeStatus, /* 4 */
122 PSetVolumeStatus, /* 5 */
127 PCheckServers, /* 10 */
128 PCheckVolNames, /* 11 */
130 PBogus, /* 13 -- used to be quick check time */
131 PFindVolume, /* 14 */
132 PBogus, /* 15 -- prefetch is now special-cased; see pioctl code! */
133 PBogus, /* 16 -- used to be testing code */
134 PNoop, /* 17 -- used to be enable group */
135 PNoop, /* 18 -- used to be disable group */
136 PBogus, /* 19 -- used to be list group */
137 PViceAccess, /* 20 */
138 PUnlog, /* 21 -- unlog *is* unpag in this system */
139 PGetFID, /* 22 -- get file ID */
140 PBogus, /* 23 -- used to be waitforever */
141 PSetCacheSize, /* 24 */
142 PRemoveCallBack, /* 25 -- flush only the callback */
145 PRemoveMount, /* 28 -- delete mount point */
146 PNewStatMount, /* 29 -- new style mount point stat */
147 PGetFileCell, /* 30 -- get cell name for input file */
148 PGetWSCell, /* 31 -- get cell name for workstation */
149 PMariner, /* 32 - set/get mariner host */
150 PGetUserCell, /* 33 -- get cell name for user */
151 PVenusLogging, /* 34 -- Enable/Disable logging */
152 PGetCellStatus, /* 35 */
153 PSetCellStatus, /* 36 */
154 PFlushVolumeData, /* 37 -- flush all data from a volume */
155 PSetSysName, /* 38 - Set system name */
156 PExportAfs, /* 39 - Export Afs to remote nfs clients */
157 PGetCacheSize, /* 40 - get cache size and usage */
158 PGetVnodeXStatus, /* 41 - get vcache's special status */
159 PSetSPrefs33, /* 42 - Set CM Server preferences... */
160 PGetSPrefs, /* 43 - Get CM Server preferences... */
161 PGag, /* 44 - turn off/on all CM messages */
162 PTwiddleRx, /* 45 - adjust some RX params */
163 PSetSPrefs, /* 46 - Set CM Server preferences... */
164 PStoreBehind, /* 47 - set degree of store behind to be done */
165 PGCPAGs, /* 48 - disable automatic pag gc-ing */
166 PGetInitParams, /* 49 - get initial cm params */
167 PGetCPrefs, /* 50 - get client interface addresses */
168 PSetCPrefs, /* 51 - set client interface addresses */
169 PFlushMount, /* 52 - flush mount symlink data */
170 PRxStatProc, /* 53 - control process RX statistics */
171 PRxStatPeer, /* 54 - control peer RX statistics */
172 PGetRxkcrypt, /* 55 -- Get rxkad encryption flag */
173 PSetRxkcrypt, /* 56 -- Set rxkad encryption flag */
174 PBogus, /* 57 -- arla: set file prio */
175 PBogus, /* 58 -- arla: fallback getfh */
176 PBogus, /* 59 -- arla: fallback fhopen */
177 PBogus, /* 60 -- arla: controls xfsdebug */
178 PBogus, /* 61 -- arla: controls arla debug */
179 PBogus, /* 62 -- arla: debug interface */
180 PBogus, /* 63 -- arla: print xfs status */
181 PBogus, /* 64 -- arla: force cache check */
182 PBogus, /* 65 -- arla: break callback */
183 PPrefetchFromTape, /* 66 -- MR-AFS: prefetch file from tape */
184 PResidencyCmd, /* 67 -- MR-AFS: generic commnd interface */
185 PBogus, /* 68 -- arla: fetch stats */
188 static int (*(CpioctlSw[])) () = {
190 PNewAlias, /* 1 -- create new cell alias */
191 PListAliases, /* 2 -- list cell aliases */
192 PCallBackAddr, /* 3 -- request addr for callback rxcon */
195 #define PSetClientContext 99 /* Special pioctl to setup caller's creds */
196 int afs_nobody = NFS_NOBODY;
198 #if (defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)) || defined(AFS_HPUX_64BIT_ENV) || defined(AFS_SUN57_64BIT_ENV) || (defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64)) || defined(NEED_IOCTL32)
200 afs_ioctl32_to_afs_ioctl(const struct afs_ioctl32 *src, struct afs_ioctl *dst)
202 dst->in = (char *)(unsigned long)src->in;
203 dst->out = (char *)(unsigned long)src->out;
204 dst->in_size = src->in_size;
205 dst->out_size = src->out_size;
210 * If you need to change copyin_afs_ioctl(), you may also need to change
215 copyin_afs_ioctl(caddr_t cmarg, struct afs_ioctl *dst)
218 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
219 struct afs_ioctl32 dst32;
222 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
224 afs_ioctl32_to_afs_ioctl(&dst32, dst);
227 #endif /* defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL) */
230 #if defined(AFS_HPUX_64BIT_ENV)
231 struct afs_ioctl32 dst32;
233 if (is_32bit(u.u_procp)) { /* is_32bit() in proc_iface.h */
234 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
236 afs_ioctl32_to_afs_ioctl(&dst32, dst);
239 #endif /* defined(AFS_HPUX_64BIT_ENV) */
241 #if defined(AFS_SUN57_64BIT_ENV)
242 struct afs_ioctl32 dst32;
244 if (get_udatamodel() == DATAMODEL_ILP32) {
245 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
247 afs_ioctl32_to_afs_ioctl(&dst32, dst);
250 #endif /* defined(AFS_SUN57_64BIT_ENV) */
252 #if defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64)
253 struct afs_ioctl32 dst32;
255 if (!ABI_IS_64BIT(get_current_abi())) {
256 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
258 afs_ioctl32_to_afs_ioctl(&dst32, dst);
261 #endif /* defined(AFS_SGI_ENV) && (_MIPS_SZLONG==64) */
263 #if defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV)
264 struct afs_ioctl32 dst32;
266 #ifdef AFS_SPARC64_LINUX26_ENV
267 if (test_thread_flag(TIF_32BIT))
268 #elif AFS_SPARC64_LINUX24_ENV
269 if (current->thread.flags & SPARC_FLAG_32BIT)
270 #elif defined(AFS_SPARC64_LINUX20_ENV)
271 if (current->tss.flags & SPARC_FLAG_32BIT)
273 #elif defined(AFS_AMD64_LINUX26_ENV)
274 if (test_thread_flag(TIF_IA32))
275 #elif defined(AFS_AMD64_LINUX20_ENV)
276 if (current->thread.flags & THREAD_IA32)
278 #elif defined(AFS_PPC64_LINUX26_ENV)
279 if (current->thread_info->flags & _TIF_32BIT)
280 #elif defined(AFS_PPC64_LINUX20_ENV)
281 if (current->thread.flags & PPC_FLAG_32BIT)
283 #elif defined(AFS_S390X_LINUX26_ENV)
284 if (test_thread_flag(TIF_31BIT))
285 #elif defined(AFS_S390X_LINUX20_ENV)
286 if (current->thread.flags & S390_FLAG_31BIT)
289 #error pioctl32 not done for this linux
292 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
294 afs_ioctl32_to_afs_ioctl(&dst32, dst);
297 #endif /* defined(AFS_LINUX_64BIT_KERNEL) */
299 AFS_COPYIN(cmarg, (caddr_t) dst, sizeof *dst, code);
304 HandleIoctl(register struct vcache *avc, register afs_int32 acom,
305 struct afs_ioctl *adata)
307 register afs_int32 code;
310 AFS_STATCNT(HandleIoctl);
312 switch (acom & 0xff) {
314 avc->states |= CSafeStore;
318 /* case 2 used to be abort store, but this is no longer provided,
319 * since it is impossible to implement under normal Unix.
323 /* return the name of the cell this file is open on */
324 register struct cell *tcell;
325 register afs_int32 i;
327 tcell = afs_GetCell(avc->fid.Cell, READ_LOCK);
329 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
331 if (i > adata->out_size) {
332 /* 0 means we're not interested in the output */
333 if (adata->out_size != 0)
337 AFS_COPYOUT(tcell->cellName, adata->out, i, code);
339 afs_PutCell(tcell, READ_LOCK);
345 case 49: /* VIOC_GETINITPARAMS */
346 if (adata->out_size < sizeof(struct cm_initparams)) {
349 AFS_COPYOUT(&cm_initParams, adata->out,
350 sizeof(struct cm_initparams), code);
362 return code; /* so far, none implemented */
367 /* For aix we don't temporarily bypass ioctl(2) but rather do our
368 * thing directly in the vnode layer call, VNOP_IOCTL; thus afs_ioctl
369 * is now called from afs_gn_ioctl.
372 afs_ioctl(struct vcache *tvc, int cmd, int arg)
374 struct afs_ioctl data;
377 AFS_STATCNT(afs_ioctl);
378 if (((cmd >> 8) & 0xff) == 'V') {
379 /* This is a VICEIOCTL call */
380 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error);
383 error = HandleIoctl(tvc, cmd, &data);
386 /* No-op call; just return. */
390 #endif /* AFS_AIX_ENV */
392 #if defined(AFS_SGI_ENV)
393 afs_ioctl(OSI_VN_DECL(tvc), int cmd, void *arg, int flag, cred_t * cr,
396 , struct vopbd * vbds
400 struct afs_ioctl data;
406 AFS_STATCNT(afs_ioctl);
407 if (((cmd >> 8) & 0xff) == 'V') {
408 /* This is a VICEIOCTL call */
409 error = copyin_afs_ioctl(arg, &data);
412 locked = ISAFS_GLOCK();
415 error = HandleIoctl(tvc, cmd, &data);
420 /* No-op call; just return. */
424 #endif /* AFS_SGI_ENV */
426 /* unlike most calls here, this one uses u.u_error to return error conditions,
427 since this is really an intercepted chapter 2 call, rather than a vnode
430 /* AFS_HPUX102 and up uses VNODE ioctl instead */
431 #ifndef AFS_HPUX102_ENV
432 #if !defined(AFS_SGI_ENV)
436 kioctl(fdes, com, arg, ext, arg2, arg3)
437 #else /* __64BIT__ */
438 kioctl32(fdes, com, arg, ext, arg2, arg3)
439 #endif /* __64BIT__ */
442 kioctl(fdes, com, arg, ext)
453 } u_uap, *uap = &u_uap;
455 #if defined(AFS_SUN5_ENV)
457 struct afs_ioctl_sys {
464 struct afs_ioctl_sys *uap;
467 #elif defined(AFS_OSF_ENV)
468 afs_xioctl(p, args, retval)
477 } *uap = (struct a *)args;
478 #elif defined(AFS_FBSD50_ENV)
481 afs_xioctl(td, uap, retval)
483 register struct ioctl_args *uap;
486 struct proc *p = td->td_proc;
487 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
495 afs_xioctl(p, uap, retval)
497 register struct ioctl_args *uap;
500 #elif defined(AFS_LINUX22_ENV)
501 struct afs_ioctl_sys {
506 afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
509 struct afs_ioctl_sys ua, *uap = &ua;
518 } *uap = (struct a *)u.u_ap;
519 #endif /* AFS_SUN5_ENV */
521 #if defined(AFS_AIX32_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV)
523 #elif !defined(AFS_LINUX22_ENV)
524 register struct file *fd;
526 #if defined(AFS_XBSD_ENV)
527 register struct filedesc *fdp;
529 register struct vcache *tvc;
530 register int ioctlDone = 0, code = 0;
532 AFS_STATCNT(afs_xioctl);
533 #if defined(AFS_DARWIN_ENV)
534 if ((code = fdgetf(p, uap->fd, &fd)))
536 #elif defined(AFS_XBSD_ENV)
538 if ((u_int) uap->fd >= fdp->fd_nfiles
539 || (fd = fdp->fd_ofiles[uap->fd]) == NULL)
541 if ((fd->f_flag & (FREAD | FWRITE)) == 0)
543 #elif defined(AFS_LINUX22_ENV)
546 #elif defined(AFS_AIX32_ENV)
554 if (setuerror(getf(uap->fd, &fd))) {
557 #elif defined(AFS_OSF_ENV)
559 if (code = getf(&fd, uap->fd, FILE_FLAGS_NULL, &u.u_file_state))
561 #elif defined(AFS_SUN5_ENV)
562 # if defined(AFS_SUN57_ENV)
566 # elif defined(AFS_SUN54_ENV)
571 if (code = getf(uap->fd, &fd)) {
574 # endif /* AFS_SUN57_ENV */
580 /* first determine whether this is any sort of vnode */
581 #if defined(AFS_LINUX22_ENV)
586 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
588 if (fd->f_type == DTYPE_VNODE) {
590 /* good, this is a vnode; next see if it is an AFS vnode */
591 #if defined(AFS_AIX32_ENV) || defined(AFS_SUN5_ENV)
592 tvc = VTOAFS(fd->f_vnode); /* valid, given a vnode */
593 #elif defined(AFS_OBSD_ENV)
595 IsAfsVnode((struct vnode *)fd->
596 f_data) ? VTOAFS((struct vnode *)fd->f_data) : NULL;
598 tvc = VTOAFS((struct vnode *)fd->f_data); /* valid, given a vnode */
600 #endif /* AFS_LINUX22_ENV */
601 if (tvc && IsAfsVnode(AFSTOV(tvc))) {
602 /* This is an AFS vnode */
603 if (((uap->com >> 8) & 0xff) == 'V') {
604 register struct afs_ioctl *datap;
607 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ);
608 code=copyin_afs_ioctl((char *)uap->arg, datap);
610 osi_FreeSmallSpace(datap);
612 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
615 #if defined(AFS_SUN5_ENV)
630 #else /* AFS_OSF_ENV */
634 #ifdef AFS_LINUX22_ENV
644 code = HandleIoctl(tvc, uap->com, datap);
645 osi_FreeSmallSpace(datap);
659 #if defined(AFS_LINUX22_ENV)
671 code = okioctl(fdes, com, arg, ext, arg2, arg3);
672 #else /* __64BIT__ */
673 code = okioctl32(fdes, com, arg, ext, arg2, arg3);
674 #endif /* __64BIT__ */
675 #else /* !AFS_AIX51_ENV */
676 code = okioctl(fdes, com, arg, ext);
677 #endif /* AFS_AIX51_ENV */
679 #else /* !AFS_AIX41_ENV */
681 okioctl(fdes, com, arg, ext);
682 #elif defined(AFS_SUN5_ENV)
683 #if defined(AFS_SUN57_ENV)
685 #elif defined(AFS_SUN54_ENV)
690 code = ioctl(uap, rvp);
691 #elif defined(AFS_FBSD50_ENV)
692 return ioctl(td, uap);
693 #elif defined(AFS_FBSD_ENV)
694 return ioctl(p, uap);
695 #elif defined(AFS_OBSD_ENV)
696 code = sys_ioctl(p, uap, retval);
697 #elif defined(AFS_DARWIN_ENV)
698 return ioctl(p, uap, retval);
699 #elif defined(AFS_OSF_ENV)
700 code = ioctl(p, args, retval);
707 #elif !defined(AFS_LINUX22_ENV)
721 #ifdef AFS_LINUX22_ENV
724 #if defined(KERNEL_HAVE_UERROR)
727 #if defined(AFS_AIX32_ENV) && !defined(AFS_AIX41_ENV)
728 return (getuerror()? -1 : u.u_ioctlrv);
730 return getuerror()? -1 : 0;
733 #endif /* AFS_LINUX22_ENV */
734 #endif /* AFS_SUN5_ENV */
735 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
739 #endif /* AFS_SGI_ENV */
740 #endif /* AFS_HPUX102_ENV */
742 #if defined(AFS_SGI_ENV)
743 /* "pioctl" system call entry point; just pass argument to the parameterized
752 afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
756 AFS_STATCNT(afs_pioctl);
758 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
767 #elif defined(AFS_OSF_ENV)
768 afs_pioctl(p, args, retval)
778 } *uap = (struct a *)args;
780 AFS_STATCNT(afs_pioctl);
781 return (afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow));
784 #elif defined(AFS_FBSD50_ENV)
786 afs_pioctl(td, args, retval)
796 } *uap = (struct a *)args;
798 AFS_STATCNT(afs_pioctl);
799 return (afs_syscall_pioctl
800 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
803 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
805 afs_pioctl(p, args, retval)
815 } *uap = (struct a *)args;
817 AFS_STATCNT(afs_pioctl);
818 return (afs_syscall_pioctl
819 (uap->path, uap->cmd, uap->cmarg, uap->follow,
820 p->p_cred->pc_ucred));
825 /* macro to avoid adding any more #ifdef's to pioctl code. */
826 #if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
827 #define PIOCTL_FREE_CRED() crfree(credp)
829 #define PIOCTL_FREE_CRED()
834 afs_syscall_pioctl(path, com, cmarg, follow, rvp, credp)
836 struct AFS_UCRED *credp;
838 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
839 afs_syscall_pioctl(path, com, cmarg, follow, credp)
840 struct AFS_UCRED *credp;
842 afs_syscall_pioctl(path, com, cmarg, follow)
850 struct afs_ioctl data;
851 #ifdef AFS_NEED_CLIENTCONTEXT
852 struct AFS_UCRED *tmpcred;
854 struct AFS_UCRED *foreigncreds = NULL;
855 register afs_int32 code = 0;
856 struct vnode *vp = NULL;
858 struct ucred *credp = crref(); /* don't free until done! */
860 #ifdef AFS_LINUX22_ENV
861 cred_t *credp = crref(); /* don't free until done! */
865 AFS_STATCNT(afs_syscall_pioctl);
867 follow = 1; /* compat. with old venus */
868 code = copyin_afs_ioctl(cmarg, &data);
871 #if defined(KERNEL_HAVE_UERROR)
876 if ((com & 0xff) == PSetClientContext) {
877 #ifdef AFS_NEED_CLIENTCONTEXT
878 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV)
879 code = HandleClientContext(&data, &com, &foreigncreds, credp);
881 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred());
885 crfree(foreigncreds);
888 #if defined(KERNEL_HAVE_UERROR)
889 return (setuerror(code), code);
894 #else /* AFS_NEED_CLIENTCONTEXT */
896 #endif /* AFS_NEED_CLIENTCONTEXT */
898 #ifdef AFS_NEED_CLIENTCONTEXT
901 * We could have done without temporary setting the u.u_cred below
902 * (foreigncreds could be passed as param the pioctl modules)
903 * but calls such as afs_osi_suser() doesn't allow that since it
904 * references u.u_cred directly. We could, of course, do something
905 * like afs_osi_suser(cred) which, I think, is better since it
906 * generalizes and supports multi cred environments...
910 credp = foreigncreds;
911 #elif defined(AFS_AIX41_ENV)
912 tmpcred = crref(); /* XXX */
914 #elif defined(AFS_HPUX101_ENV)
915 tmpcred = p_cred(u.u_procp);
916 set_p_cred(u.u_procp, foreigncreds);
917 #elif defined(AFS_SGI_ENV)
918 tmpcred = OSI_GET_CURRENT_CRED();
919 OSI_SET_CURRENT_CRED(foreigncreds);
922 u.u_cred = foreigncreds;
925 #endif /* AFS_NEED_CLIENTCONTEXT */
926 if ((com & 0xff) == 15) {
927 /* special case prefetch so entire pathname eval occurs in helper process.
928 * otherwise, the pioctl call is essentially useless */
929 #if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
931 Prefetch(path, &data, follow,
932 foreigncreds ? foreigncreds : credp);
934 code = Prefetch(path, &data, follow, osi_curcred());
937 #if defined(KERNEL_HAVE_UERROR)
946 lookupname(path, USR, follow, NULL, &vp,
947 foreigncreds ? foreigncreds : credp);
949 #ifdef AFS_LINUX22_ENV
950 code = gop_lookupname(path, AFS_UIOUSER, follow, &dp);
952 vp = (struct vnode *)dp->d_inode;
954 code = gop_lookupname(path, AFS_UIOUSER, follow, &vp);
955 #endif /* AFS_LINUX22_ENV */
956 #endif /* AFS_AIX41_ENV */
960 #if defined(KERNEL_HAVE_UERROR)
968 /* now make the call if we were passed no file, or were passed an AFS file */
969 if (!vp || IsAfsVnode(vp)) {
970 #if defined(AFS_SUN5_ENV)
971 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
972 #elif defined(AFS_AIX41_ENV)
974 struct ucred *cred1, *cred2;
977 cred1 = cred2 = foreigncreds;
979 cred1 = cred2 = credp;
981 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
982 if (cred1 != cred2) {
983 /* something changed the creds */
987 #elif defined(AFS_HPUX101_ENV)
989 struct ucred *cred = p_cred(u.u_procp);
990 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
992 #elif defined(AFS_SGI_ENV)
995 credp = OSI_GET_CURRENT_CRED();
996 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
998 #elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
999 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1001 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1004 #if defined(KERNEL_HAVE_UERROR)
1007 code = EINVAL; /* not in /afs */
1012 #if defined(AFS_NEED_CLIENTCONTEXT)
1014 #ifdef AFS_AIX41_ENV
1015 crset(tmpcred); /* restore original credentials */
1017 #if defined(AFS_HPUX101_ENV)
1018 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1019 #elif defined(AFS_SGI_ENV)
1020 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1021 #elif !defined(AFS_SUN5_ENV)
1022 osi_curcred() = tmpcred; /* restore original credentials */
1023 #endif /* AFS_HPUX101_ENV */
1024 crfree(foreigncreds);
1027 #endif /* AFS_NEED_CLIENTCONTEXT */
1029 #ifdef AFS_LINUX22_ENV
1032 AFS_RELE(vp); /* put vnode back */
1036 #if defined(KERNEL_HAVE_UERROR)
1039 return (getuerror());
1045 #define MAXPIOCTLTOKENLEN \
1046 (3*sizeof(afs_int32)+MAXKTCTICKETLEN+sizeof(struct ClearToken)+MAXKTCREALMLEN)
1049 afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1050 register struct afs_ioctl *ablob, int afollow,
1051 struct AFS_UCRED **acred)
1054 struct vrequest treq;
1055 register afs_int32 code;
1056 register afs_int32 function, device;
1057 afs_int32 inSize, outSize, outSizeMax;
1058 char *inData, *outData;
1059 int (*(*pioctlSw)) ();
1061 struct afs_fakestat_state fakestate;
1063 avc = avp ? VTOAFS(avp) : NULL;
1064 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,
1065 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow);
1066 AFS_STATCNT(HandlePioctl);
1067 if ((code = afs_InitReq(&treq, *acred)))
1069 afs_InitFakeStat(&fakestate);
1071 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1073 afs_PutFakeStat(&fakestate);
1077 device = (acom & 0xff00) >> 8;
1079 case 'V': /* Original pioctls */
1080 pioctlSw = VpioctlSw;
1081 pioctlSwSize = sizeof(VpioctlSw);
1083 case 'C': /* Coordinated/common pioctls */
1084 pioctlSw = CpioctlSw;
1085 pioctlSwSize = sizeof(CpioctlSw);
1088 afs_PutFakeStat(&fakestate);
1091 function = acom & 0xff;
1092 if (function >= (pioctlSwSize / sizeof(char *))) {
1093 afs_PutFakeStat(&fakestate);
1094 return EINVAL; /* out of range */
1096 inSize = ablob->in_size;
1098 /* Do all range checking before continuing */
1099 if (inSize > MAXPIOCTLTOKENLEN || inSize < 0 || ablob->out_size < 0)
1102 /* Note that we use osi_Alloc for large allocs and osi_AllocLargeSpace for small ones */
1103 if (inSize > AFS_LRALLOCSIZ) {
1104 inData = osi_Alloc(inSize + 1);
1106 inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
1111 AFS_COPYIN(ablob->in, inData, inSize, code);
1112 inData[inSize] = '\0';
1116 if (inSize > AFS_LRALLOCSIZ) {
1117 osi_Free(inData, inSize + 1);
1119 osi_FreeLargeSpace(inData);
1121 afs_PutFakeStat(&fakestate);
1124 if (function == 8 && device == 'V') { /* PGetTokens */
1125 outSizeMax = MAXPIOCTLTOKENLEN;
1126 outData = osi_Alloc(outSizeMax);
1128 outSizeMax = AFS_LRALLOCSIZ;
1129 outData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
1132 if (inSize > AFS_LRALLOCSIZ) {
1133 osi_Free(inData, inSize + 1);
1135 osi_FreeLargeSpace(inData);
1137 afs_PutFakeStat(&fakestate);
1142 (*pioctlSw[function]) (avc, function, &treq, inData, outData, inSize,
1144 if (inSize > AFS_LRALLOCSIZ) {
1145 osi_Free(inData, inSize + 1);
1147 osi_FreeLargeSpace(inData);
1149 if (code == 0 && ablob->out_size > 0) {
1150 if (outSize > ablob->out_size) {
1151 code = E2BIG; /* data wont fit in user buffer */
1152 } else if (outSize) {
1153 AFS_COPYOUT(outData, ablob->out, outSize, code);
1156 if (outSizeMax > AFS_LRALLOCSIZ) {
1157 osi_Free(outData, outSizeMax);
1159 osi_FreeLargeSpace(outData);
1161 afs_PutFakeStat(&fakestate);
1162 return afs_CheckCode(code, &treq, 41);
1165 DECL_PIOCTL(PGetFID)
1167 AFS_STATCNT(PGetFID);
1170 memcpy(aout, (char *)&avc->fid, sizeof(struct VenusFid));
1171 *aoutSize = sizeof(struct VenusFid);
1175 DECL_PIOCTL(PSetAcl)
1177 register afs_int32 code;
1179 struct AFSOpaque acl;
1180 struct AFSVolSync tsync;
1181 struct AFSFetchStatus OutStatus;
1184 AFS_STATCNT(PSetAcl);
1187 if ((acl.AFSOpaque_len = strlen(ain) + 1) > 1000)
1190 acl.AFSOpaque_val = ain;
1192 tconn = afs_Conn(&avc->fid, areq, SHARED_LOCK);
1194 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL);
1197 RXAFS_StoreACL(tconn->id, (struct AFSFid *)&avc->fid.Fid,
1198 &acl, &OutStatus, &tsync);
1203 } while (afs_Analyze
1204 (tconn, code, &avc->fid, areq, AFS_STATS_FS_RPCIDX_STOREACL,
1205 SHARED_LOCK, NULL));
1207 /* now we've forgotten all of the access info */
1208 ObtainWriteLock(&afs_xcbhash, 455);
1210 afs_DequeueCallback(avc);
1211 avc->states &= ~(CStatd | CUnique);
1212 ReleaseWriteLock(&afs_xcbhash);
1213 if (avc->fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
1214 osi_dnlc_purgedp(avc);
1218 int afs_defaultAsynchrony = 0;
1220 DECL_PIOCTL(PStoreBehind)
1223 struct sbstruct *sbr;
1225 sbr = (struct sbstruct *)ain;
1226 if (sbr->sb_default != -1) {
1227 if (afs_osi_suser(*acred))
1228 afs_defaultAsynchrony = sbr->sb_default;
1233 if (avc && (sbr->sb_thisfile != -1)) {
1235 (avc, PRSFS_WRITE | PRSFS_ADMINISTER, areq, DONT_CHECK_MODE_BITS))
1236 avc->asynchrony = sbr->sb_thisfile;
1241 *aoutSize = sizeof(struct sbstruct);
1242 sbr = (struct sbstruct *)aout;
1243 sbr->sb_default = afs_defaultAsynchrony;
1245 sbr->sb_thisfile = avc->asynchrony;
1251 DECL_PIOCTL(PGCPAGs)
1253 if (!afs_osi_suser(*acred)) {
1256 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1260 DECL_PIOCTL(PGetAcl)
1262 struct AFSOpaque acl;
1263 struct AFSVolSync tsync;
1264 struct AFSFetchStatus OutStatus;
1270 AFS_STATCNT(PGetAcl);
1273 Fid.Volume = avc->fid.Fid.Volume;
1274 Fid.Vnode = avc->fid.Fid.Vnode;
1275 Fid.Unique = avc->fid.Fid.Unique;
1276 if (avc->states & CForeign) {
1278 * For a dfs xlator acl we have a special hack so that the
1279 * xlator will distinguish which type of acl will return. So
1280 * we currently use the top 2-bytes (vals 0-4) to tell which
1281 * type of acl to bring back. Horrible hack but this will
1282 * cause the least number of changes to code size and interfaces.
1284 if (Fid.Vnode & 0xc0000000)
1286 Fid.Vnode |= (ainSize << 30);
1288 acl.AFSOpaque_val = aout;
1290 tconn = afs_Conn(&avc->fid, areq, SHARED_LOCK);
1293 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL);
1295 code = RXAFS_FetchACL(tconn->id, &Fid, &acl, &OutStatus, &tsync);
1300 } while (afs_Analyze
1301 (tconn, code, &avc->fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL,
1302 SHARED_LOCK, NULL));
1305 *aoutSize = (acl.AFSOpaque_len == 0 ? 1 : acl.AFSOpaque_len);
1318 AFS_STATCNT(PBogus);
1322 DECL_PIOCTL(PGetFileCell)
1324 register struct cell *tcell;
1326 AFS_STATCNT(PGetFileCell);
1329 tcell = afs_GetCell(avc->fid.Cell, READ_LOCK);
1332 strcpy(aout, tcell->cellName);
1333 afs_PutCell(tcell, READ_LOCK);
1334 *aoutSize = strlen(aout) + 1;
1338 DECL_PIOCTL(PGetWSCell)
1340 struct cell *tcell = NULL;
1342 AFS_STATCNT(PGetWSCell);
1343 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1344 return EIO; /* Inappropriate ioctl for device */
1346 tcell = afs_GetPrimaryCell(READ_LOCK);
1347 if (!tcell) /* no primary cell? */
1349 strcpy(aout, tcell->cellName);
1350 *aoutSize = strlen(aout) + 1;
1351 afs_PutCell(tcell, READ_LOCK);
1355 DECL_PIOCTL(PGetUserCell)
1357 register afs_int32 i;
1358 register struct unixuser *tu;
1359 register struct cell *tcell;
1361 AFS_STATCNT(PGetUserCell);
1362 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1363 return EIO; /* Inappropriate ioctl for device */
1365 /* return the cell name of the primary cell for this user */
1366 i = UHash(areq->uid);
1367 ObtainWriteLock(&afs_xuser, 224);
1368 for (tu = afs_users[i]; tu; tu = tu->next) {
1369 if (tu->uid == areq->uid && (tu->states & UPrimary)) {
1371 ReleaseWriteLock(&afs_xuser);
1376 tcell = afs_GetCell(tu->cell, READ_LOCK);
1377 afs_PutUser(tu, WRITE_LOCK);
1381 strcpy(aout, tcell->cellName);
1382 afs_PutCell(tcell, READ_LOCK);
1383 *aoutSize = strlen(aout) + 1; /* 1 for the null */
1386 ReleaseWriteLock(&afs_xuser);
1393 DECL_PIOCTL(PSetTokens)
1396 register struct unixuser *tu;
1397 struct ClearToken clear;
1398 register struct cell *tcell;
1401 struct vrequest treq;
1402 afs_int32 flag, set_parent_pag = 0;
1404 AFS_STATCNT(PSetTokens);
1405 if (!afs_resourceinit_flag) {
1408 memcpy((char *)&i, ain, sizeof(afs_int32));
1409 ain += sizeof(afs_int32);
1410 stp = ain; /* remember where the ticket is */
1411 if (i < 0 || i > MAXKTCTICKETLEN)
1412 return EINVAL; /* malloc may fail */
1414 ain += i; /* skip over ticket */
1415 memcpy((char *)&i, ain, sizeof(afs_int32));
1416 ain += sizeof(afs_int32);
1417 if (i != sizeof(struct ClearToken)) {
1420 memcpy((char *)&clear, ain, sizeof(struct ClearToken));
1421 if (clear.AuthHandle == -1)
1422 clear.AuthHandle = 999; /* more rxvab compat stuff */
1423 ain += sizeof(struct ClearToken);
1424 if (ainSize != 2 * sizeof(afs_int32) + stLen + sizeof(struct ClearToken)) {
1425 /* still stuff left? we've got primary flag and cell name. Set these */
1426 memcpy((char *)&flag, ain, sizeof(afs_int32)); /* primary id flag */
1427 ain += sizeof(afs_int32); /* skip id field */
1428 /* rest is cell name, look it up */
1429 /* some versions of gcc appear to need != 0 in order to get this right */
1430 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1434 tcell = afs_GetCellByName(ain, READ_LOCK);
1438 /* default to primary cell, primary id */
1439 flag = 1; /* primary id */
1440 tcell = afs_GetPrimaryCell(READ_LOCK);
1445 afs_PutCell(tcell, READ_LOCK);
1446 if (set_parent_pag) {
1448 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1449 #if defined(AFS_DARWIN_ENV)
1450 struct proc *p = current_proc(); /* XXX */
1452 struct proc *p = curproc; /* XXX */
1454 uprintf("Process %d (%s) tried to change pags in PSetTokens\n",
1455 p->p_pid, p->p_comm);
1456 if (!setpag(p, acred, -1, &pag, 1)) {
1459 if (!setpag(u.u_procp, acred, -1, &pag, 1)) { /* XXX u.u_procp is a no-op XXX */
1461 if (!setpag(acred, -1, &pag, 1)) {
1464 afs_InitReq(&treq, *acred);
1468 /* now we just set the tokens */
1469 tu = afs_GetUser(areq->uid, i, WRITE_LOCK); /* i has the cell # */
1470 tu->vid = clear.ViceId;
1471 if (tu->stp != NULL) {
1472 afs_osi_Free(tu->stp, tu->stLen);
1474 tu->stp = (char *)afs_osi_Alloc(stLen);
1476 memcpy(tu->stp, stp, stLen);
1479 afs_stats_cmfullperf.authent.TicketUpdates++;
1480 afs_ComputePAGStats();
1481 #endif /* AFS_NOSTATS */
1482 tu->states |= UHasTokens;
1483 tu->states &= ~UTokensBad;
1484 afs_SetPrimary(tu, flag);
1485 tu->tokenTime = osi_Time();
1486 afs_ResetUserConns(tu);
1487 afs_PutUser(tu, WRITE_LOCK);
1502 DECL_PIOCTL(PGetVolumeStatus)
1505 char *offLineMsg = afs_osi_Alloc(256);
1506 char *motd = afs_osi_Alloc(256);
1507 register struct conn *tc;
1508 register afs_int32 code = 0;
1509 struct AFSFetchVolumeStatus volstat;
1511 char *Name, *OfflineMsg, *MOTD;
1514 AFS_STATCNT(PGetVolumeStatus);
1520 OfflineMsg = offLineMsg;
1523 tc = afs_Conn(&avc->fid, areq, SHARED_LOCK);
1525 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS);
1528 RXAFS_GetVolumeStatus(tc->id, avc->fid.Fid.Volume, &volstat,
1529 &Name, &OfflineMsg, &MOTD);
1534 } while (afs_Analyze
1535 (tc, code, &avc->fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS,
1536 SHARED_LOCK, NULL));
1540 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
1542 memcpy(cp, (char *)&volstat, sizeof(VolumeStatus));
1543 cp += sizeof(VolumeStatus);
1544 strcpy(cp, volName);
1545 cp += strlen(volName) + 1;
1546 strcpy(cp, offLineMsg);
1547 cp += strlen(offLineMsg) + 1;
1549 cp += strlen(motd) + 1;
1550 *aoutSize = (cp - aout);
1552 afs_osi_Free(offLineMsg, 256);
1553 afs_osi_Free(motd, 256);
1557 DECL_PIOCTL(PSetVolumeStatus)
1560 char *offLineMsg = afs_osi_Alloc(256);
1561 char *motd = afs_osi_Alloc(256);
1562 register struct conn *tc;
1563 register afs_int32 code = 0;
1564 struct AFSFetchVolumeStatus volstat;
1565 struct AFSStoreVolumeStatus storeStat;
1566 register struct volume *tvp;
1570 AFS_STATCNT(PSetVolumeStatus);
1576 tvp = afs_GetVolume(&avc->fid, areq, READ_LOCK);
1578 if (tvp->states & (VRO | VBackup)) {
1579 afs_PutVolume(tvp, READ_LOCK);
1583 afs_PutVolume(tvp, READ_LOCK);
1588 /* Copy the junk out, using cp as a roving pointer. */
1590 memcpy((char *)&volstat, cp, sizeof(AFSFetchVolumeStatus));
1591 cp += sizeof(AFSFetchVolumeStatus);
1592 if (strlen(cp) >= sizeof(volName)) {
1596 strcpy(volName, cp);
1597 cp += strlen(volName) + 1;
1598 if (strlen(cp) >= sizeof(offLineMsg)) {
1602 strcpy(offLineMsg, cp);
1603 cp += strlen(offLineMsg) + 1;
1604 if (strlen(cp) >= sizeof(motd)) {
1610 if (volstat.MinQuota != -1) {
1611 storeStat.MinQuota = volstat.MinQuota;
1612 storeStat.Mask |= AFS_SETMINQUOTA;
1614 if (volstat.MaxQuota != -1) {
1615 storeStat.MaxQuota = volstat.MaxQuota;
1616 storeStat.Mask |= AFS_SETMAXQUOTA;
1619 tc = afs_Conn(&avc->fid, areq, SHARED_LOCK);
1621 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS);
1624 RXAFS_SetVolumeStatus(tc->id, avc->fid.Fid.Volume, &storeStat,
1625 volName, offLineMsg, motd);
1630 } while (afs_Analyze
1631 (tc, code, &avc->fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS,
1632 SHARED_LOCK, NULL));
1636 /* we are sending parms back to make compat. with prev system. should
1637 * change interface later to not ask for current status, just set new status */
1639 memcpy(cp, (char *)&volstat, sizeof(VolumeStatus));
1640 cp += sizeof(VolumeStatus);
1641 strcpy(cp, volName);
1642 cp += strlen(volName) + 1;
1643 strcpy(cp, offLineMsg);
1644 cp += strlen(offLineMsg) + 1;
1646 cp += strlen(motd) + 1;
1647 *aoutSize = cp - aout;
1649 afs_osi_Free(offLineMsg, 256);
1650 afs_osi_Free(motd, 256);
1656 AFS_STATCNT(PFlush);
1659 #ifdef AFS_BOZONLOCK_ENV
1660 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
1662 ObtainWriteLock(&avc->lock, 225);
1663 ObtainWriteLock(&afs_xcbhash, 456);
1664 afs_DequeueCallback(avc);
1665 avc->states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
1666 ReleaseWriteLock(&afs_xcbhash);
1667 /* now find the disk cache entries */
1668 afs_TryToSmush(avc, *acred, 1);
1669 osi_dnlc_purgedp(avc);
1670 afs_symhint_inval(avc);
1671 if (avc->linkData && !(avc->states & CCore)) {
1672 afs_osi_Free(avc->linkData, strlen(avc->linkData) + 1);
1673 avc->linkData = NULL;
1675 ReleaseWriteLock(&avc->lock);
1676 #ifdef AFS_BOZONLOCK_ENV
1677 afs_BozonUnlock(&avc->pvnLock, avc);
1682 DECL_PIOCTL(PNewStatMount)
1684 register afs_int32 code;
1685 register struct vcache *tvc;
1686 register struct dcache *tdc;
1687 struct VenusFid tfid;
1689 struct sysname_info sysState;
1690 afs_size_t offset, len;
1692 AFS_STATCNT(PNewStatMount);
1695 code = afs_VerifyVCache(avc, areq);
1698 if (vType(avc) != VDIR) {
1701 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
1704 Check_AtSys(avc, ain, &sysState, areq);
1705 ObtainReadLock(&tdc->lock);
1707 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
1708 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
1709 ReleaseReadLock(&tdc->lock);
1710 afs_PutDCache(tdc); /* we're done with the data */
1711 bufp = sysState.name;
1715 tfid.Cell = avc->fid.Cell;
1716 tfid.Fid.Volume = avc->fid.Fid.Volume;
1717 if (!tfid.Fid.Unique && (avc->states & CForeign)) {
1718 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
1720 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
1726 if (tvc->mvstat != 1) {
1731 ObtainWriteLock(&tvc->lock, 226);
1732 code = afs_HandleLink(tvc, areq);
1734 if (tvc->linkData) {
1735 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
1738 /* we have the data */
1739 strcpy(aout, tvc->linkData);
1740 *aoutSize = strlen(tvc->linkData) + 1;
1745 ReleaseWriteLock(&tvc->lock);
1748 if (sysState.allocked)
1749 osi_FreeLargeSpace(bufp);
1753 DECL_PIOCTL(PGetTokens)
1755 register struct cell *tcell;
1756 register afs_int32 i;
1757 register struct unixuser *tu;
1762 AFS_STATCNT(PGetTokens);
1763 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1764 return EIO; /* Inappropriate ioctl for device */
1766 /* weird interface. If input parameter is present, it is an integer and
1767 * we're supposed to return the parm'th tokens for this unix uid.
1768 * If not present, we just return tokens for cell 1.
1769 * If counter out of bounds, return EDOM.
1770 * If no tokens for the particular cell, return ENOTCONN.
1771 * Also, if this mysterious parm is present, we return, along with the
1772 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
1773 * at the end, in that order.
1775 if ((newStyle = (ainSize > 0))) {
1776 memcpy((char *)&iterator, ain, sizeof(afs_int32));
1778 i = UHash(areq->uid);
1779 ObtainReadLock(&afs_xuser);
1780 for (tu = afs_users[i]; tu; tu = tu->next) {
1782 if (tu->uid == areq->uid && (tu->states & UHasTokens)) {
1783 if (iterator-- == 0)
1784 break; /* are we done yet? */
1787 if (tu->uid == areq->uid && afs_IsPrimaryCellNum(tu->cell))
1793 * No need to hold a read lock on each user entry
1797 ReleaseReadLock(&afs_xuser);
1802 if (((tu->states & UHasTokens) == 0)
1803 || (tu->ct.EndTimestamp < osi_Time())) {
1804 tu->states |= (UTokensBad | UNeedsReset);
1805 afs_PutUser(tu, READ_LOCK);
1808 /* use iterator for temp */
1810 iterator = tu->stLen; /* for compat, we try to return 56 byte tix if they fit */
1812 iterator = 56; /* # of bytes we're returning */
1813 memcpy(cp, (char *)&iterator, sizeof(afs_int32));
1814 cp += sizeof(afs_int32);
1815 memcpy(cp, tu->stp, tu->stLen); /* copy out st */
1817 iterator = sizeof(struct ClearToken);
1818 memcpy(cp, (char *)&iterator, sizeof(afs_int32));
1819 cp += sizeof(afs_int32);
1820 memcpy(cp, (char *)&tu->ct, sizeof(struct ClearToken));
1821 cp += sizeof(struct ClearToken);
1823 /* put out primary id and cell name, too */
1824 iterator = (tu->states & UPrimary ? 1 : 0);
1825 memcpy(cp, (char *)&iterator, sizeof(afs_int32));
1826 cp += sizeof(afs_int32);
1827 tcell = afs_GetCell(tu->cell, READ_LOCK);
1829 strcpy(cp, tcell->cellName);
1830 cp += strlen(tcell->cellName) + 1;
1831 afs_PutCell(tcell, READ_LOCK);
1835 *aoutSize = cp - aout;
1836 afs_PutUser(tu, READ_LOCK);
1842 register afs_int32 i;
1843 register struct unixuser *tu;
1845 AFS_STATCNT(PUnlog);
1846 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1847 return EIO; /* Inappropriate ioctl for device */
1849 i = UHash(areq->uid);
1850 ObtainWriteLock(&afs_xuser, 227);
1851 for (tu = afs_users[i]; tu; tu = tu->next) {
1852 if (tu->uid == areq->uid) {
1854 tu->states &= ~UHasTokens;
1855 /* security is not having to say you're sorry */
1856 memset((char *)&tu->ct, 0, sizeof(struct ClearToken));
1858 ReleaseWriteLock(&afs_xuser);
1859 /* We have to drop the lock over the call to afs_ResetUserConns, since
1860 * it obtains the afs_xvcache lock. We could also keep the lock, and
1861 * modify ResetUserConns to take parm saying we obtained the lock
1862 * already, but that is overkill. By keeping the "tu" pointer
1863 * held over the released lock, we guarantee that we won't lose our
1864 * place, and that we'll pass over every user conn that existed when
1865 * we began this call.
1867 afs_ResetUserConns(tu);
1869 ObtainWriteLock(&afs_xuser, 228);
1871 /* set the expire times to 0, causes
1872 * afs_GCUserData to remove this entry
1874 tu->ct.EndTimestamp = 0;
1876 #endif /* UKERNEL */
1879 ReleaseWriteLock(&afs_xuser);
1883 DECL_PIOCTL(PMariner)
1885 afs_int32 newHostAddr;
1886 afs_int32 oldHostAddr;
1888 AFS_STATCNT(PMariner);
1890 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
1893 oldHostAddr = 0xffffffff; /* disabled */
1895 memcpy((char *)&newHostAddr, ain, sizeof(afs_int32));
1896 if (newHostAddr == 0xffffffff) {
1897 /* disable mariner operations */
1899 } else if (newHostAddr) {
1901 afs_marinerHost = newHostAddr;
1903 memcpy(aout, (char *)&oldHostAddr, sizeof(afs_int32));
1904 *aoutSize = sizeof(afs_int32);
1908 DECL_PIOCTL(PCheckServers)
1910 register char *cp = 0;
1912 register struct server *ts;
1913 afs_int32 temp, *lp = (afs_int32 *) ain, havecell = 0;
1915 struct chservinfo *pcheck;
1917 AFS_STATCNT(PCheckServers);
1919 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1920 return EIO; /* Inappropriate ioctl for device */
1922 if (*lp == 0x12345678) { /* For afs3.3 version */
1923 pcheck = (struct chservinfo *)ain;
1924 if (pcheck->tinterval >= 0) {
1926 memcpy(cp, (char *)&PROBE_INTERVAL, sizeof(afs_int32));
1927 *aoutSize = sizeof(afs_int32);
1928 if (pcheck->tinterval > 0) {
1929 if (!afs_osi_suser(*acred))
1931 PROBE_INTERVAL = pcheck->tinterval;
1937 temp = pcheck->tflags;
1938 cp = pcheck->tbuffer;
1939 } else { /* For pre afs3.3 versions */
1940 memcpy((char *)&temp, ain, sizeof(afs_int32));
1941 cp = ain + sizeof(afs_int32);
1942 if (ainSize > sizeof(afs_int32))
1947 * 1: fast check, don't contact servers.
1948 * 2: local cell only.
1951 /* have cell name, too */
1952 cellp = afs_GetCellByName(cp, READ_LOCK);
1957 if (!cellp && (temp & 2)) {
1958 /* use local cell */
1959 cellp = afs_GetPrimaryCell(READ_LOCK);
1961 if (!(temp & 1)) { /* if not fast, call server checker routine */
1962 afs_CheckServers(1, cellp); /* check down servers */
1963 afs_CheckServers(0, cellp); /* check up servers */
1965 /* now return the current down server list */
1967 ObtainReadLock(&afs_xserver);
1968 for (i = 0; i < NSERVERS; i++) {
1969 for (ts = afs_servers[i]; ts; ts = ts->next) {
1970 if (cellp && ts->cell != cellp)
1971 continue; /* cell spec'd and wrong */
1972 if ((ts->flags & SRVR_ISDOWN)
1973 && ts->addr->sa_portal != ts->cell->vlport) {
1974 memcpy(cp, (char *)&ts->addr->sa_ip, sizeof(afs_int32));
1975 cp += sizeof(afs_int32);
1979 ReleaseReadLock(&afs_xserver);
1981 afs_PutCell(cellp, READ_LOCK);
1982 *aoutSize = cp - aout;
1986 DECL_PIOCTL(PCheckVolNames)
1988 AFS_STATCNT(PCheckVolNames);
1989 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1990 return EIO; /* Inappropriate ioctl for device */
1992 afs_CheckRootVolume();
1993 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE | AFS_VOLCHECK_EXPIRED |
1994 AFS_VOLCHECK_BUSY | AFS_VOLCHECK_MTPTS);
1998 DECL_PIOCTL(PCheckAuth)
2003 struct unixuser *tu;
2006 AFS_STATCNT(PCheckAuth);
2007 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2008 return EIO; /* Inappropriate ioctl for device */
2011 tu = afs_GetUser(areq->uid, 1, READ_LOCK); /* check local cell authentication */
2015 /* we have a user */
2016 ObtainReadLock(&afs_xsrvAddr);
2017 ObtainReadLock(&afs_xconn);
2019 /* any tokens set? */
2020 if ((tu->states & UHasTokens) == 0)
2022 /* all connections in cell 1 working? */
2023 for (i = 0; i < NSERVERS; i++) {
2024 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2025 for (tc = sa->conns; tc; tc = tc->next) {
2026 if (tc->user == tu && (tu->states & UTokensBad))
2031 ReleaseReadLock(&afs_xsrvAddr);
2032 ReleaseReadLock(&afs_xconn);
2033 afs_PutUser(tu, READ_LOCK);
2035 memcpy(aout, (char *)&retValue, sizeof(afs_int32));
2036 *aoutSize = sizeof(afs_int32);
2041 Prefetch(char *apath, struct afs_ioctl *adata, int afollow,
2042 struct AFS_UCRED *acred)
2045 register afs_int32 code;
2046 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2052 AFS_STATCNT(Prefetch);
2055 tp = osi_AllocLargeSpace(1024);
2056 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code);
2058 osi_FreeLargeSpace(tp);
2061 if (afs_BBusy()) { /* do this as late as possible */
2062 osi_FreeLargeSpace(tp);
2063 return EWOULDBLOCK; /* pretty close */
2065 afs_BQueue(BOP_PATH, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2066 (afs_size_t) 0, tp);
2070 DECL_PIOCTL(PFindVolume)
2072 register struct volume *tvp;
2073 register struct server *ts;
2074 register afs_int32 i;
2077 AFS_STATCNT(PFindVolume);
2080 tvp = afs_GetVolume(&avc->fid, areq, READ_LOCK);
2083 for (i = 0; i < MAXHOSTS; i++) {
2084 ts = tvp->serverHost[i];
2087 memcpy(cp, (char *)&ts->addr->sa_ip, sizeof(afs_int32));
2088 cp += sizeof(afs_int32);
2091 /* still room for terminating NULL, add it on */
2092 ainSize = 0; /* reuse vbl */
2093 memcpy(cp, (char *)&ainSize, sizeof(afs_int32));
2094 cp += sizeof(afs_int32);
2096 *aoutSize = cp - aout;
2097 afs_PutVolume(tvp, READ_LOCK);
2103 DECL_PIOCTL(PViceAccess)
2105 register afs_int32 code;
2108 AFS_STATCNT(PViceAccess);
2111 code = afs_VerifyVCache(avc, areq);
2114 memcpy((char *)&temp, ain, sizeof(afs_int32));
2115 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS);
2122 DECL_PIOCTL(PSetCacheSize)
2127 AFS_STATCNT(PSetCacheSize);
2128 if (!afs_osi_suser(*acred))
2130 /* too many things are setup initially in mem cache version */
2131 if (cacheDiskType == AFS_FCACHE_TYPE_MEM)
2133 memcpy((char *)&newValue, ain, sizeof(afs_int32));
2135 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2137 if (newValue < afs_min_cache)
2138 afs_cacheBlocks = afs_min_cache;
2140 afs_cacheBlocks = newValue;
2142 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2143 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2144 afs_MaybeWakeupTruncateDaemon();
2145 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2146 afs_osi_Wait(1000, 0, 0);
2147 afs_MaybeWakeupTruncateDaemon();
2152 #define MAXGCSTATS 16
2153 DECL_PIOCTL(PGetCacheSize)
2155 afs_int32 results[MAXGCSTATS];
2157 AFS_STATCNT(PGetCacheSize);
2158 memset((char *)results, 0, sizeof(results));
2159 results[0] = afs_cacheBlocks;
2160 results[1] = afs_blocksUsed;
2161 memcpy(aout, (char *)results, sizeof(results));
2162 *aoutSize = sizeof(results);
2166 DECL_PIOCTL(PRemoveCallBack)
2168 register struct conn *tc;
2169 register afs_int32 code = 0;
2170 struct AFSCallBack CallBacks_Array[1];
2171 struct AFSCBFids theFids;
2172 struct AFSCBs theCBs;
2175 AFS_STATCNT(PRemoveCallBack);
2178 if (avc->states & CRO)
2179 return 0; /* read-only-ness can't change */
2180 ObtainWriteLock(&avc->lock, 229);
2181 theFids.AFSCBFids_len = 1;
2182 theCBs.AFSCBs_len = 1;
2183 theFids.AFSCBFids_val = (struct AFSFid *)&avc->fid.Fid;
2184 theCBs.AFSCBs_val = CallBacks_Array;
2185 CallBacks_Array[0].CallBackType = CB_DROPPED;
2186 if (avc->callback) {
2188 tc = afs_Conn(&avc->fid, areq, SHARED_LOCK);
2190 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS);
2192 code = RXAFS_GiveUpCallBacks(tc->id, &theFids, &theCBs);
2196 /* don't set code on failure since we wouldn't use it */
2197 } while (afs_Analyze
2198 (tc, code, &avc->fid, areq,
2199 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS, SHARED_LOCK, NULL));
2201 ObtainWriteLock(&afs_xcbhash, 457);
2202 afs_DequeueCallback(avc);
2204 avc->states &= ~(CStatd | CUnique);
2205 ReleaseWriteLock(&afs_xcbhash);
2206 if (avc->fid.Fid.Vnode & 1 || (vType(avc) == VDIR))
2207 osi_dnlc_purgedp(avc);
2209 ReleaseWriteLock(&avc->lock);
2213 DECL_PIOCTL(PNewCell)
2215 /* create a new cell */
2216 afs_int32 cellHosts[MAXCELLHOSTS], *lp, magic = 0;
2217 char *newcell = 0, *linkedcell = 0, *tp = ain;
2218 register afs_int32 code, linkedstate = 0, ls;
2219 u_short fsport = 0, vlport = 0;
2222 AFS_STATCNT(PNewCell);
2223 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2224 return EIO; /* Inappropriate ioctl for device */
2226 if (!afs_osi_suser(*acred))
2229 memcpy((char *)&magic, tp, sizeof(afs_int32));
2230 tp += sizeof(afs_int32);
2231 if (magic != 0x12345678)
2234 /* A 3.4 fs newcell command will pass an array of MAXCELLHOSTS
2235 * server addresses while the 3.5 fs newcell command passes
2236 * MAXHOSTS. To figure out which is which, check if the cellname
2239 newcell = tp + (MAXCELLHOSTS + 3) * sizeof(afs_int32);
2240 scount = ((newcell[0] != '\0') ? MAXCELLHOSTS : MAXHOSTS);
2242 /* MAXCELLHOSTS (=8) is less than MAXHOSTS (=13) */
2243 memcpy((char *)cellHosts, tp, MAXCELLHOSTS * sizeof(afs_int32));
2244 tp += (scount * sizeof(afs_int32));
2246 lp = (afs_int32 *) tp;
2250 fsport = 0; /* Privileged ports not allowed */
2252 vlport = 0; /* Privileged ports not allowed */
2253 tp += (3 * sizeof(afs_int32));
2255 if ((ls = *lp) & 1) {
2256 linkedcell = tp + strlen(newcell) + 1;
2257 linkedstate |= CLinkedCell;
2260 linkedstate |= CNoSUID; /* setuid is disabled by default for fs newcell */
2262 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
2267 DECL_PIOCTL(PNewAlias)
2269 /* create a new cell alias */
2271 register afs_int32 code;
2272 char *realName, *aliasName;
2274 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2275 return EIO; /* Inappropriate ioctl for device */
2277 if (!afs_osi_suser(*acred))
2281 tp += strlen(aliasName) + 1;
2284 code = afs_NewCellAlias(aliasName, realName);
2289 DECL_PIOCTL(PListCells)
2291 afs_int32 whichCell;
2292 register struct cell *tcell = 0;
2293 register afs_int32 i;
2294 register char *cp, *tp = ain;
2296 AFS_STATCNT(PListCells);
2297 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2298 return EIO; /* Inappropriate ioctl for device */
2300 memcpy((char *)&whichCell, tp, sizeof(afs_int32));
2301 tp += sizeof(afs_int32);
2302 tcell = afs_GetCellByIndex(whichCell, READ_LOCK);
2305 memset(cp, 0, MAXCELLHOSTS * sizeof(afs_int32));
2306 for (i = 0; i < MAXCELLHOSTS; i++) {
2307 if (tcell->cellHosts[i] == 0)
2309 memcpy(cp, (char *)&tcell->cellHosts[i]->addr->sa_ip,
2311 cp += sizeof(afs_int32);
2313 cp = aout + MAXCELLHOSTS * sizeof(afs_int32);
2314 strcpy(cp, tcell->cellName);
2315 cp += strlen(tcell->cellName) + 1;
2316 *aoutSize = cp - aout;
2317 afs_PutCell(tcell, READ_LOCK);
2325 DECL_PIOCTL(PListAliases)
2327 afs_int32 whichAlias;
2328 register struct cell_alias *tcalias = 0;
2329 register char *cp, *tp = ain;
2331 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2332 return EIO; /* Inappropriate ioctl for device */
2333 if (ainSize < sizeof(afs_int32))
2336 memcpy((char *)&whichAlias, tp, sizeof(afs_int32));
2337 tp += sizeof(afs_int32);
2339 tcalias = afs_GetCellAlias(whichAlias);
2342 strcpy(cp, tcalias->alias);
2343 cp += strlen(tcalias->alias) + 1;
2344 strcpy(cp, tcalias->cell);
2345 cp += strlen(tcalias->cell) + 1;
2346 *aoutSize = cp - aout;
2347 afs_PutCellAlias(tcalias);
2355 DECL_PIOCTL(PRemoveMount)
2357 register afs_int32 code;
2359 struct sysname_info sysState;
2360 afs_size_t offset, len;
2361 register struct conn *tc;
2362 register struct dcache *tdc;
2363 register struct vcache *tvc;
2364 struct AFSFetchStatus OutDirStatus;
2365 struct VenusFid tfid;
2366 struct AFSVolSync tsync;
2370 /* "ain" is the name of the file in this dir to remove */
2372 AFS_STATCNT(PRemoveMount);
2375 code = afs_VerifyVCache(avc, areq);
2378 if (vType(avc) != VDIR)
2381 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
2384 Check_AtSys(avc, ain, &sysState, areq);
2385 ObtainReadLock(&tdc->lock);
2387 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2388 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
2389 ReleaseReadLock(&tdc->lock);
2390 bufp = sysState.name;
2395 tfid.Cell = avc->fid.Cell;
2396 tfid.Fid.Volume = avc->fid.Fid.Volume;
2397 if (!tfid.Fid.Unique && (avc->states & CForeign)) {
2398 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
2400 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
2407 if (tvc->mvstat != 1) {
2413 ObtainWriteLock(&tvc->lock, 230);
2414 code = afs_HandleLink(tvc, areq);
2416 if (tvc->linkData) {
2417 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2422 ReleaseWriteLock(&tvc->lock);
2423 osi_dnlc_purgedp(tvc);
2429 ObtainWriteLock(&avc->lock, 231);
2430 osi_dnlc_remove(avc, bufp, tvc);
2432 tc = afs_Conn(&avc->fid, areq, SHARED_LOCK);
2434 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE);
2437 RXAFS_RemoveFile(tc->id, (struct AFSFid *)&avc->fid.Fid, bufp,
2438 &OutDirStatus, &tsync);
2443 } while (afs_Analyze
2444 (tc, code, &avc->fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE,
2445 SHARED_LOCK, NULL));
2450 ReleaseWriteLock(&avc->lock);
2454 /* we have the thing in the cache */
2455 ObtainWriteLock(&tdc->lock, 661);
2456 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
2457 /* we can do it locally */
2458 code = afs_dir_Delete(tdc, bufp);
2460 ZapDCE(tdc); /* surprise error -- invalid value */
2464 ReleaseWriteLock(&tdc->lock);
2465 afs_PutDCache(tdc); /* drop ref count */
2467 avc->states &= ~CUnique; /* For the dfs xlator */
2468 ReleaseWriteLock(&avc->lock);
2471 if (sysState.allocked)
2472 osi_FreeLargeSpace(bufp);
2476 DECL_PIOCTL(PVenusLogging)
2478 return EINVAL; /* OBSOLETE */
2481 DECL_PIOCTL(PGetCellStatus)
2483 register struct cell *tcell;
2486 AFS_STATCNT(PGetCellStatus);
2487 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2488 return EIO; /* Inappropriate ioctl for device */
2490 tcell = afs_GetCellByName(ain, READ_LOCK);
2493 temp = tcell->states;
2494 afs_PutCell(tcell, READ_LOCK);
2495 memcpy(aout, (char *)&temp, sizeof(afs_int32));
2496 *aoutSize = sizeof(afs_int32);
2500 DECL_PIOCTL(PSetCellStatus)
2502 register struct cell *tcell;
2505 if (!afs_osi_suser(*acred))
2507 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2508 return EIO; /* Inappropriate ioctl for device */
2510 tcell = afs_GetCellByName(ain + 2 * sizeof(afs_int32), WRITE_LOCK);
2513 memcpy((char *)&temp, ain, sizeof(afs_int32));
2515 tcell->states |= CNoSUID;
2517 tcell->states &= ~CNoSUID;
2518 afs_PutCell(tcell, WRITE_LOCK);
2522 DECL_PIOCTL(PFlushVolumeData)
2524 register afs_int32 i;
2525 register struct dcache *tdc;
2526 register struct vcache *tvc;
2527 register struct volume *tv;
2528 afs_int32 cell, volume;
2530 AFS_STATCNT(PFlushVolumeData);
2533 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2534 return EIO; /* Inappropriate ioctl for device */
2536 volume = avc->fid.Fid.Volume; /* who to zap */
2537 cell = avc->fid.Cell;
2540 * Clear stat'd flag from all vnodes from this volume; this will invalidate all
2541 * the vcaches associated with the volume.
2543 ObtainReadLock(&afs_xvcache);
2544 for (i = 0; i < VCSIZE; i++) {
2545 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
2546 if (tvc->fid.Fid.Volume == volume && tvc->fid.Cell == cell) {
2547 #if defined(AFS_SGI_ENV) || defined(AFS_OSF_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_HPUX_ENV) || defined(AFS_LINUX20_ENV)
2548 VN_HOLD(AFSTOV(tvc));
2550 #if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
2553 VREFCOUNT_INC(tvc); /* AIX, apparently */
2556 ReleaseReadLock(&afs_xvcache);
2557 #ifdef AFS_BOZONLOCK_ENV
2558 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2560 ObtainWriteLock(&tvc->lock, 232);
2562 ObtainWriteLock(&afs_xcbhash, 458);
2563 afs_DequeueCallback(tvc);
2564 tvc->states &= ~(CStatd | CDirty);
2565 ReleaseWriteLock(&afs_xcbhash);
2566 if (tvc->fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
2567 osi_dnlc_purgedp(tvc);
2568 afs_TryToSmush(tvc, *acred, 1);
2569 ReleaseWriteLock(&tvc->lock);
2570 #ifdef AFS_BOZONLOCK_ENV
2571 afs_BozonUnlock(&tvc->pvnLock, tvc);
2573 ObtainReadLock(&afs_xvcache);
2574 /* our tvc ptr is still good until now */
2579 ReleaseReadLock(&afs_xvcache);
2582 MObtainWriteLock(&afs_xdcache, 328); /* needed if you're going to flush any stuff */
2583 for (i = 0; i < afs_cacheFiles; i++) {
2584 if (!(afs_indexFlags[i] & IFEverUsed))
2585 continue; /* never had any data */
2586 tdc = afs_GetDSlot(i, NULL);
2587 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
2588 ReleaseReadLock(&tdc->tlock);
2589 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
2590 if (!(afs_indexFlags[i] & IFDataMod)) {
2591 /* if the file is modified, but has a ref cnt of only 1, then
2592 * someone probably has the file open and is writing into it.
2593 * Better to skip flushing such a file, it will be brought back
2594 * immediately on the next write anyway.
2596 * If we *must* flush, then this code has to be rearranged to call
2597 * afs_storeAllSegments() first */
2598 afs_FlushDCache(tdc);
2602 ReleaseReadLock(&tdc->tlock);
2604 afs_PutDCache(tdc); /* bumped by getdslot */
2606 MReleaseWriteLock(&afs_xdcache);
2608 ObtainReadLock(&afs_xvolume);
2609 for (i = 0; i < NVOLS; i++) {
2610 for (tv = afs_volumes[i]; tv; tv = tv->next) {
2611 if (tv->volume == volume) {
2612 afs_ResetVolumeInfo(tv);
2617 ReleaseReadLock(&afs_xvolume);
2619 /* probably, a user is doing this, probably, because things are screwed up.
2620 * maybe it's the dnlc's fault? */
2627 DECL_PIOCTL(PGetVnodeXStatus)
2629 register afs_int32 code;
2630 struct vcxstat stat;
2633 /* AFS_STATCNT(PGetVnodeXStatus); */
2636 code = afs_VerifyVCache(avc, areq);
2639 if (vType(avc) == VDIR)
2640 mode = PRSFS_LOOKUP;
2643 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS))
2645 stat.fid = avc->fid;
2646 hset32(stat.DataVersion, hgetlo(avc->m.DataVersion));
2647 stat.lock = avc->lock;
2648 stat.parentVnode = avc->parentVnode;
2649 stat.parentUnique = avc->parentUnique;
2650 hset(stat.flushDV, avc->flushDV);
2651 hset(stat.mapDV, avc->mapDV);
2652 stat.truncPos = avc->truncPos;
2653 { /* just grab the first two - won't break anything... */
2654 struct axscache *ac;
2656 for (i = 0, ac = avc->Access; ac && i < CPSIZE; i++, ac = ac->next) {
2657 stat.randomUid[i] = ac->uid;
2658 stat.randomAccess[i] = ac->axess;
2661 stat.callback = afs_data_pointer_to_int32(avc->callback);
2662 stat.cbExpires = avc->cbExpires;
2663 stat.anyAccess = avc->anyAccess;
2664 stat.opens = avc->opens;
2665 stat.execsOrWriters = avc->execsOrWriters;
2666 stat.flockCount = avc->flockCount;
2667 stat.mvstat = avc->mvstat;
2668 stat.states = avc->states;
2669 memcpy(aout, (char *)&stat, sizeof(struct vcxstat));
2670 *aoutSize = sizeof(struct vcxstat);
2675 /* We require root for local sysname changes, but not for remote */
2676 /* (since we don't really believe remote uids anyway) */
2677 /* outname[] shouldn't really be needed- this is left as an excercise */
2678 /* for the reader. */
2679 DECL_PIOCTL(PSetSysName)
2681 char *cp, *cp2 = NULL, inname[MAXSYSNAME], outname[MAXSYSNAME];
2682 int setsysname, foundname = 0;
2683 register struct afs_exporter *exporter;
2684 register struct unixuser *au;
2685 register afs_int32 pag, error;
2686 int t, count, num = 0;
2687 char **sysnamelist[MAXSYSNAME];
2689 AFS_STATCNT(PSetSysName);
2690 if (!afs_globalVFS) {
2691 /* Afsd is NOT running; disable it */
2692 #if defined(KERNEL_HAVE_UERROR)
2693 return (setuerror(EINVAL), EINVAL);
2698 memset(inname, 0, MAXSYSNAME);
2699 memcpy((char *)&setsysname, ain, sizeof(afs_int32));
2700 ain += sizeof(afs_int32);
2704 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES)
2707 for (cp = ain, count = 0; count < setsysname; count++) {
2708 /* won't go past end of ain since maxsysname*num < ain length */
2710 if (t >= MAXSYSNAME || t <= 0)
2712 /* check for names that can shoot us in the foot */
2713 if (*cp == '.' && (cp[1] == 0 || (cp[1] == '.' && cp[2] == 0)))
2719 /* inname gets first entry in case we're being a translator */
2721 memcpy(inname, ain, t + 1); /* include terminating null */
2725 if ((*acred)->cr_gid == RMTUSER_REQ) { /* Handles all exporters */
2726 pag = PagInCred(*acred);
2728 return EINVAL; /* Better than panicing */
2730 if (!(au = afs_FindUser(pag, -1, READ_LOCK))) {
2731 return EINVAL; /* Better than panicing */
2733 if (!(exporter = au->exporter)) {
2734 afs_PutUser(au, READ_LOCK);
2735 return EINVAL; /* Better than panicing */
2737 error = EXP_SYSNAME(exporter, (setsysname ? cp2 : NULL), sysnamelist,
2740 if (error == ENODEV)
2741 foundname = 0; /* sysname not set yet! */
2743 afs_PutUser(au, READ_LOCK);
2748 strcpy(outname, (*sysnamelist)[0]);
2750 afs_PutUser(au, READ_LOCK);
2752 /* Not xlating, so local case */
2754 osi_Panic("PSetSysName: !afs_sysname\n");
2755 if (!setsysname) { /* user just wants the info */
2756 strcpy(outname, afs_sysname);
2757 foundname = afs_sysnamecount;
2758 *sysnamelist = afs_sysnamelist;
2759 } else { /* Local guy; only root can change sysname */
2760 if (!afs_osi_suser(*acred))
2763 /* clear @sys entries from the dnlc, once afs_lookup can
2764 * do lookups of @sys entries and thinks it can trust them */
2765 /* privs ok, store the entry, ... */
2766 strcpy(afs_sysname, inname);
2767 if (setsysname > 1) { /* ... or list */
2769 for (count = 1; count < setsysname; ++count) {
2770 if (!afs_sysnamelist[count])
2772 ("PSetSysName: no afs_sysnamelist entry to write\n");
2774 memcpy(afs_sysnamelist[count], cp, t + 1); /* include null */
2778 afs_sysnamecount = setsysname;
2782 cp = aout; /* not changing so report back the count and ... */
2783 memcpy(cp, (char *)&foundname, sizeof(afs_int32));
2784 cp += sizeof(afs_int32);
2786 strcpy(cp, outname); /* ... the entry, ... */
2787 cp += strlen(outname) + 1;
2788 for (count = 1; count < foundname; ++count) { /* ... or list. */
2789 if (!(*sysnamelist)[count])
2791 ("PSetSysName: no afs_sysnamelist entry to read\n");
2792 t = strlen((*sysnamelist)[count]);
2793 if (t >= MAXSYSNAME)
2794 osi_Panic("PSetSysName: sysname entry garbled\n");
2795 strcpy(cp, (*sysnamelist)[count]);
2799 *aoutSize = cp - aout;
2804 /* sequential search through the list of touched cells is not a good
2805 * long-term solution here. For small n, though, it should be just
2806 * fine. Should consider special-casing the local cell for large n.
2807 * Likewise for PSetSPrefs.
2809 * s - number of ids in array l[] -- NOT index of last id
2810 * l - array of cell ids which have volumes that need to be sorted
2811 * vlonly - sort vl servers or file servers?
2814 ReSortCells_cb(struct cell *cell, void *arg)
2816 afs_int32 *p = (afs_int32 *) arg;
2817 afs_int32 *l = p + 1;
2820 for (i = 0; i < s; i++) {
2821 if (l[i] == cell->cellNum) {
2822 ObtainWriteLock(&cell->lock, 690);
2823 afs_SortServers(cell->cellHosts, MAXCELLHOSTS);
2824 ReleaseWriteLock(&cell->lock);
2832 ReSortCells(int s, afs_int32 * l, int vlonly)
2840 p = (afs_int32 *) afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
2842 memcpy(p + 1, l, s * sizeof(afs_int32));
2843 afs_TraverseCells(&ReSortCells_cb, p);
2844 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
2848 ObtainReadLock(&afs_xvolume);
2849 for (i = 0; i < NVOLS; i++) {
2850 for (j = afs_volumes[i]; j; j = j->next) {
2851 for (k = 0; k < s; k++)
2852 if (j->cell == l[k]) {
2853 ObtainWriteLock(&j->lock, 233);
2854 afs_SortServers(j->serverHost, MAXHOSTS);
2855 ReleaseWriteLock(&j->lock);
2860 ReleaseReadLock(&afs_xvolume);
2864 static int debugsetsp = 0;
2866 afs_setsprefs(sp, num, vlonly)
2869 unsigned int vlonly;
2872 int i, j, k, matches, touchedSize;
2873 struct server *srvr = NULL;
2874 afs_int32 touched[34];
2878 for (k = 0; k < num; sp++, k++) {
2880 printf("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
2883 ObtainReadLock(&afs_xserver);
2885 i = SHash(sp->host.s_addr);
2886 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2887 if (sa->sa_ip == sp->host.s_addr) {
2889 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
2890 || (sa->sa_portal == AFS_FSPORT);
2891 if ((!vlonly && isfs) || (vlonly && !isfs)) {
2898 if (sa && matches) { /* found one! */
2900 printf("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
2902 sa->sa_iprank = sp->rank + afs_randomMod15();
2903 afs_SortOneServer(sa->server);
2906 /* if we don't know yet what cell it's in, this is moot */
2907 for (j = touchedSize - 1;
2908 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
2909 /* is it in our list of touched cells ? */ ;
2910 if (j < 0) { /* no, it's not */
2911 touched[touchedSize++] = srvr->cell->cellNum;
2912 if (touchedSize >= 32) { /* watch for ovrflow */
2913 ReleaseReadLock(&afs_xserver);
2914 ReSortCells(touchedSize, touched, vlonly);
2916 ObtainReadLock(&afs_xserver);
2922 ReleaseReadLock(&afs_xserver);
2923 /* if we didn't find one, start to create one. */
2924 /* Note that it doesn't have a cell yet... */
2926 afs_uint32 temp = sp->host.s_addr;
2928 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT : AFS_FSPORT),
2929 WRITE_LOCK, (afsUUID *) 0, 0);
2930 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
2931 afs_PutServer(srvr, WRITE_LOCK);
2933 } /* for all cited preferences */
2935 ReSortCells(touchedSize, touched, vlonly);
2939 /* Note that this may only be performed by the local root user.
2941 DECL_PIOCTL(PSetSPrefs)
2943 struct setspref *ssp;
2944 AFS_STATCNT(PSetSPrefs);
2946 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2947 return EIO; /* Inappropriate ioctl for device */
2949 if (!afs_osi_suser(*acred))
2952 if (ainSize < sizeof(struct setspref))
2955 ssp = (struct setspref *)ain;
2956 if (ainSize < sizeof(struct spref) * ssp->num_servers)
2959 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
2960 (ssp->flags & DBservers));
2964 DECL_PIOCTL(PSetSPrefs33)
2967 AFS_STATCNT(PSetSPrefs);
2968 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2969 return EIO; /* Inappropriate ioctl for device */
2972 if (!afs_osi_suser(*acred))
2975 sp = (struct spref *)ain;
2976 afs_setsprefs(sp, ainSize / (sizeof(struct spref)), 0 /*!vlonly */ );
2980 /* some notes on the following code...
2981 * in the hash table of server structs, all servers with the same IP address
2982 * will be on the same overflow chain.
2983 * This could be sped slightly in some circumstances by having it cache the
2984 * immediately previous slot in the hash table and some supporting information
2985 * Only reports file servers now.
2987 DECL_PIOCTL(PGetSPrefs)
2989 struct sprefrequest *spin; /* input */
2990 struct sprefinfo *spout; /* output */
2991 struct spref *srvout; /* one output component */
2992 int i, j; /* counters for hash table traversal */
2993 struct server *srvr; /* one of CM's server structs */
2995 int vlonly; /* just return vlservers ? */
2998 AFS_STATCNT(PGetSPrefs);
2999 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3000 return EIO; /* Inappropriate ioctl for device */
3003 if (ainSize < sizeof(struct sprefrequest_33)) {
3006 spin = ((struct sprefrequest *)ain);
3009 if (ainSize > sizeof(struct sprefrequest_33)) {
3010 vlonly = (spin->flags & DBservers);
3014 /* struct sprefinfo includes 1 server struct... that size gets added
3015 * in during the loop that follows.
3017 *aoutSize = sizeof(struct sprefinfo) - sizeof(struct spref);
3018 spout = (struct sprefinfo *)aout;
3019 spout->next_offset = spin->offset;
3020 spout->num_servers = 0;
3021 srvout = spout->servers;
3023 ObtainReadLock(&afs_xserver);
3024 for (i = 0, j = 0; j < NSERVERS; j++) { /* sift through hash table */
3025 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
3026 if (spin->offset > (unsigned short)i) {
3027 continue; /* catch up to where we left off */
3029 spout->next_offset++;
3032 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3033 || (sa->sa_portal == AFS_FSPORT);
3035 if ((vlonly && isfs) || (!vlonly && !isfs)) {
3036 /* only report ranks for vl servers */
3040 srvout->host.s_addr = sa->sa_ip;
3041 srvout->rank = sa->sa_iprank;
3042 *aoutSize += sizeof(struct spref);
3043 spout->num_servers++;
3046 if (*aoutSize > (PIGGYSIZE - sizeof(struct spref))) {
3047 ReleaseReadLock(&afs_xserver); /* no more room! */
3052 ReleaseReadLock(&afs_xserver);
3054 spout->next_offset = 0; /* start over from the beginning next time */
3058 /* Enable/Disable the specified exporter. Must be root to disable an exporter */
3059 int afs_NFSRootOnly = 1;
3060 DECL_PIOCTL(PExportAfs)
3062 afs_int32 export, newint =
3063 0, type, changestate, handleValue, convmode, pwsync, smounts;
3064 register struct afs_exporter *exporter;
3066 AFS_STATCNT(PExportAfs);
3067 memcpy((char *)&handleValue, ain, sizeof(afs_int32));
3068 type = handleValue >> 24;
3073 exporter = exporter_find(type);
3075 export = handleValue & 3;
3076 changestate = handleValue & 0xff;
3077 smounts = (handleValue >> 2) & 3;
3078 pwsync = (handleValue >> 4) & 3;
3079 convmode = (handleValue >> 6) & 3;
3081 changestate = (handleValue >> 16) & 0x1;
3082 convmode = (handleValue >> 16) & 0x2;
3083 pwsync = (handleValue >> 16) & 0x4;
3084 smounts = (handleValue >> 16) & 0x8;
3085 export = handleValue & 0xff;
3088 /* Failed finding desired exporter; */
3092 handleValue = exporter->exp_states;
3093 memcpy(aout, (char *)&handleValue, sizeof(afs_int32));
3094 *aoutSize = sizeof(afs_int32);
3096 if (!afs_osi_suser(*acred))
3097 return EACCES; /* Only superuser can do this */
3101 exporter->exp_states |= EXP_EXPORTED;
3103 exporter->exp_states &= ~EXP_EXPORTED;
3107 exporter->exp_states |= EXP_UNIXMODE;
3109 exporter->exp_states &= ~EXP_UNIXMODE;
3113 exporter->exp_states |= EXP_PWSYNC;
3115 exporter->exp_states &= ~EXP_PWSYNC;
3119 afs_NFSRootOnly = 0;
3120 exporter->exp_states |= EXP_SUBMOUNTS;
3122 afs_NFSRootOnly = 1;
3123 exporter->exp_states &= ~EXP_SUBMOUNTS;
3126 handleValue = exporter->exp_states;
3127 memcpy(aout, (char *)&handleValue, sizeof(afs_int32));
3128 *aoutSize = sizeof(afs_int32);
3131 exporter->exp_states |= EXP_EXPORTED;
3133 exporter->exp_states &= ~EXP_EXPORTED;
3135 exporter->exp_states |= EXP_UNIXMODE;
3137 exporter->exp_states &= ~EXP_UNIXMODE;
3139 exporter->exp_states |= EXP_PWSYNC;
3141 exporter->exp_states &= ~EXP_PWSYNC;
3143 afs_NFSRootOnly = 0;
3144 exporter->exp_states |= EXP_SUBMOUNTS;
3146 afs_NFSRootOnly = 1;
3147 exporter->exp_states &= ~EXP_SUBMOUNTS;
3157 struct gaginfo *gagflags;
3159 if (!afs_osi_suser(*acred))
3162 gagflags = (struct gaginfo *)ain;
3163 afs_showflags = gagflags->showflags;
3169 DECL_PIOCTL(PTwiddleRx)
3171 struct rxparams *rxp;
3173 if (!afs_osi_suser(*acred))
3176 rxp = (struct rxparams *)ain;
3178 if (rxp->rx_initReceiveWindow)
3179 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
3180 if (rxp->rx_maxReceiveWindow)
3181 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
3182 if (rxp->rx_initSendWindow)
3183 rx_initSendWindow = rxp->rx_initSendWindow;
3184 if (rxp->rx_maxSendWindow)
3185 rx_maxSendWindow = rxp->rx_maxSendWindow;
3186 if (rxp->rxi_nSendFrags)
3187 rxi_nSendFrags = rxp->rxi_nSendFrags;
3188 if (rxp->rxi_nRecvFrags)
3189 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
3190 if (rxp->rxi_OrphanFragSize)
3191 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
3192 if (rxp->rx_maxReceiveSize) {
3193 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
3194 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
3196 if (rxp->rx_MyMaxSendSize)
3197 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
3202 DECL_PIOCTL(PGetInitParams)
3204 if (sizeof(struct cm_initparams) > PIGGYSIZE)
3207 memcpy(aout, (char *)&cm_initParams, sizeof(struct cm_initparams));
3208 *aoutSize = sizeof(struct cm_initparams);
3212 #ifdef AFS_SGI65_ENV
3213 /* They took crget() from us, so fake it. */
3218 cr = crdup(get_current_cred());
3219 memset((char *)cr, 0, sizeof(cred_t));
3220 #if CELL || CELL_PREPARE
3227 DECL_PIOCTL(PGetRxkcrypt)
3229 memcpy(aout, (char *)&cryptall, sizeof(afs_int32));
3230 *aoutSize = sizeof(afs_int32);
3234 DECL_PIOCTL(PSetRxkcrypt)
3238 if (!afs_osi_suser(*acred))
3240 if (ainSize != sizeof(afs_int32) || ain == NULL)
3242 memcpy((char *)&tmpval, ain, sizeof(afs_int32));
3243 /* if new mappings added later this will need to be changed */
3244 if (tmpval != 0 && tmpval != 1)
3250 #ifdef AFS_NEED_CLIENTCONTEXT
3252 * Create new credentials to correspond to a remote user with given
3253 * <hostaddr, uid, g0, g1>. This allows a server running as root to
3254 * provide pioctl (and other) services to foreign clients (i.e. nfs
3255 * clients) by using this call to `become' the client.
3258 #define PIOCTL_HEADER 6
3260 HandleClientContext(struct afs_ioctl *ablob, int *com,
3261 struct AFS_UCRED **acred, struct AFS_UCRED *credp)
3264 afs_uint32 hostaddr;
3265 afs_int32 uid, g0, g1, i, code, pag, exporter_type;
3266 struct afs_exporter *exporter, *outexporter;
3267 struct AFS_UCRED *newcred;
3268 struct unixuser *au;
3270 #if defined(AFS_SGIMP_ENV)
3271 osi_Assert(ISAFS_GLOCK());
3273 AFS_STATCNT(HandleClientContext);
3274 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
3275 /* Must at least include the PIOCTL_HEADER header words required by the protocol */
3276 return EINVAL; /* Too small to be good */
3278 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ);
3279 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code);
3281 osi_FreeLargeSpace(inData);
3285 /* Extract information for remote user */
3286 hostaddr = *((afs_uint32 *) ain);
3287 ain += sizeof(hostaddr);
3288 uid = *((afs_uint32 *) ain);
3290 g0 = *((afs_uint32 *) ain);
3292 g1 = *((afs_uint32 *) ain);
3294 *com = *((afs_uint32 *) ain);
3295 ain += sizeof(afs_int32);
3296 exporter_type = *((afs_uint32 *) ain); /* In case we support more than NFS */
3299 * Of course, one must be root for most of these functions, but
3300 * we'll allow (for knfs) you to set things if the pag is 0 and
3301 * you're setting tokens or unlogging.
3304 if (!afs_osi_suser(credp)) {
3305 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
3306 /* Since SGI's suser() returns explicit failure after the call.. */
3309 /* check for acceptable opcodes for normal folks, which are, so far,
3310 * set tokens and unlog.
3312 if (i != 9 && i != 3 && i != 38 && i != 8) {
3313 osi_FreeLargeSpace(inData);
3318 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
3319 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
3320 osi_FreeLargeSpace(inData);
3323 * We map uid 0 to nobody to match the mapping that the nfs
3324 * server does and to ensure that the suser() calls in the afs
3325 * code fails for remote client roots.
3327 uid = afs_nobody; /* NFS_NOBODY == -2 */
3330 #if defined(AFS_LINUX26_ENV)
3331 newcred->cr_group_info = groups_alloc(0);
3333 #ifdef AFS_AIX41_ENV
3336 newcred->cr_gid = RMTUSER_REQ;
3337 #ifdef AFS_AIX51_ENV
3338 newcred->cr_groupset.gs_union.un_groups[0] = g0;
3339 newcred->cr_groupset.gs_union.un_groups[1] = g1;
3341 newcred->cr_groups[0] = g0;
3342 newcred->cr_groups[1] = g1;
3345 newcred->cr_ngrps = 2;
3347 #if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV)
3348 newcred->cr_ngroups = 2;
3350 for (i = 2; i < NGROUPS; i++)
3351 newcred->cr_groups[i] = NOGROUP;
3354 #if !defined(AFS_OSF_ENV)
3355 afs_nfsclient_init(); /* before looking for exporter, ensure one exists */
3357 if (!(exporter = exporter_find(exporter_type))) {
3358 /* Exporter wasn't initialized or an invalid exporter type */
3362 if (exporter->exp_states & EXP_PWSYNC) {
3363 if (uid != credp->cr_uid) {
3365 return ENOEXEC; /* XXX Find a better errno XXX */
3368 newcred->cr_uid = uid; /* Only temporary */
3369 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter);
3370 /* The client's pag is the only unique identifier for it */
3371 newcred->cr_uid = pag;
3373 if (!code && *com == PSETPAG) {
3374 /* Special case for 'setpag' */
3375 afs_uint32 pagvalue = genpag();
3377 au = afs_GetUser(pagvalue, -1, WRITE_LOCK); /* a new unixuser struct */
3379 * Note that we leave the 'outexporter' struct held so it won't
3382 au->exporter = outexporter;
3383 if (ablob->out_size >= 4) {
3384 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),
3387 afs_PutUser(au, WRITE_LOCK);
3390 return PSETPAG; /* Special return for setpag */
3392 EXP_RELE(outexporter);
3396 #endif /* AFS_NEED_CLIENTCONTEXT */
3398 /* get all interface addresses of this client */
3400 DECL_PIOCTL(PGetCPrefs)
3402 struct sprefrequest *spin; /* input */
3403 struct sprefinfo *spout; /* output */
3404 struct spref *srvout; /* one output component */
3408 AFS_STATCNT(PGetCPrefs);
3409 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3410 return EIO; /* Inappropriate ioctl for device */
3412 if (ainSize < sizeof(struct sprefrequest))
3415 spin = (struct sprefrequest *)ain;
3416 spout = (struct sprefinfo *)aout;
3418 maxNumber = spin->num_servers; /* max addrs this time */
3419 srvout = spout->servers;
3421 ObtainReadLock(&afs_xinterface);
3423 /* copy out the client interface information from the
3424 ** kernel data structure "interface" to the output buffer
3426 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
3427 && (j < maxNumber); i++, j++, srvout++)
3428 srvout->host.s_addr = afs_cb_interface.addr_in[i];
3430 spout->num_servers = j;
3431 *aoutSize = sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
3433 if (i >= afs_cb_interface.numberOfInterfaces)
3434 spout->next_offset = 0; /* start from beginning again */
3436 spout->next_offset = spin->offset + j;
3438 ReleaseReadLock(&afs_xinterface);
3442 DECL_PIOCTL(PSetCPrefs)
3444 struct setspref *sin;
3447 AFS_STATCNT(PSetCPrefs);
3448 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3449 return EIO; /* Inappropriate ioctl for device */
3451 sin = (struct setspref *)ain;
3453 if (ainSize < sizeof(struct setspref))
3455 #if 0 /* num_servers is unsigned */
3456 if (sin->num_servers < 0)
3459 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR)
3462 ObtainWriteLock(&afs_xinterface, 412);
3463 afs_cb_interface.numberOfInterfaces = sin->num_servers;
3464 for (i = 0; (unsigned short)i < sin->num_servers; i++)
3465 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
3467 ReleaseWriteLock(&afs_xinterface);
3471 DECL_PIOCTL(PFlushMount)
3473 register afs_int32 code;
3474 register struct vcache *tvc;
3475 register struct dcache *tdc;
3476 struct VenusFid tfid;
3478 struct sysname_info sysState;
3479 afs_size_t offset, len;
3481 AFS_STATCNT(PFlushMount);
3484 code = afs_VerifyVCache(avc, areq);
3487 if (vType(avc) != VDIR) {
3490 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
3493 Check_AtSys(avc, ain, &sysState, areq);
3494 ObtainReadLock(&tdc->lock);
3496 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3497 } while (code == ENOENT && Next_AtSys(avc, areq, &sysState));
3498 ReleaseReadLock(&tdc->lock);
3499 afs_PutDCache(tdc); /* we're done with the data */
3500 bufp = sysState.name;
3504 tfid.Cell = avc->fid.Cell;
3505 tfid.Fid.Volume = avc->fid.Fid.Volume;
3506 if (!tfid.Fid.Unique && (avc->states & CForeign)) {
3507 tvc = afs_LookupVCache(&tfid, areq, NULL, avc, bufp);
3509 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3515 if (tvc->mvstat != 1) {
3520 #ifdef AFS_BOZONLOCK_ENV
3521 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3523 ObtainWriteLock(&tvc->lock, 649);
3524 ObtainWriteLock(&afs_xcbhash, 650);
3525 afs_DequeueCallback(tvc);
3526 tvc->states &= ~(CStatd | CDirty); /* next reference will re-stat cache entry */
3527 ReleaseWriteLock(&afs_xcbhash);
3528 /* now find the disk cache entries */
3529 afs_TryToSmush(tvc, *acred, 1);
3530 osi_dnlc_purgedp(tvc);
3531 afs_symhint_inval(tvc);
3532 if (tvc->linkData && !(tvc->states & CCore)) {
3533 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
3534 tvc->linkData = NULL;
3536 ReleaseWriteLock(&tvc->lock);
3537 #ifdef AFS_BOZONLOCK_ENV
3538 afs_BozonUnlock(&tvc->pvnLock, tvc);
3542 if (sysState.allocked)
3543 osi_FreeLargeSpace(bufp);
3547 DECL_PIOCTL(PRxStatProc)
3552 if (!afs_osi_suser(*acred)) {
3556 if (ainSize != sizeof(afs_int32)) {
3560 memcpy((char *)&flags, ain, sizeof(afs_int32));
3561 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK)) {
3565 if (flags & AFSCALL_RXSTATS_ENABLE) {
3566 rx_enableProcessRPCStats();
3568 if (flags & AFSCALL_RXSTATS_DISABLE) {
3569 rx_disableProcessRPCStats();
3571 if (flags & AFSCALL_RXSTATS_CLEAR) {
3572 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL);
3580 DECL_PIOCTL(PRxStatPeer)
3585 if (!afs_osi_suser(*acred)) {
3589 if (ainSize != sizeof(afs_int32)) {
3593 memcpy((char *)&flags, ain, sizeof(afs_int32));
3594 if (!(flags & AFSCALL_RXSTATS_MASK) || (flags & ~AFSCALL_RXSTATS_MASK)) {
3598 if (flags & AFSCALL_RXSTATS_ENABLE) {
3599 rx_enablePeerRPCStats();
3601 if (flags & AFSCALL_RXSTATS_DISABLE) {
3602 rx_disablePeerRPCStats();
3604 if (flags & AFSCALL_RXSTATS_CLEAR) {
3605 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL);
3612 DECL_PIOCTL(PPrefetchFromTape)
3614 register afs_int32 code, code1;
3617 struct rx_call *tcall;
3618 struct AFSVolSync tsync;
3619 struct AFSFetchStatus OutStatus;
3620 struct AFSCallBack CallBack;
3621 struct VenusFid tfid;
3625 AFS_STATCNT(PSetAcl);
3629 if (ain && (ainSize == 3 * sizeof(afs_int32)))
3630 Fid = (struct AFSFid *)ain;
3632 Fid = &avc->fid.Fid;
3633 tfid.Cell = avc->fid.Cell;
3634 tfid.Fid.Volume = Fid->Volume;
3635 tfid.Fid.Vnode = Fid->Vnode;
3636 tfid.Fid.Unique = Fid->Unique;
3638 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3640 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
3641 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->fid);
3644 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,
3645 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->fid);
3648 tc = afs_Conn(&tvc->fid, areq, SHARED_LOCK);
3652 tcall = rx_NewCall(tc->id);
3654 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->fid.Fid, 0,
3657 bytes = rx_Read(tcall, (char *)aout, sizeof(afs_int32));
3659 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
3661 code1 = rx_EndCall(tcall, code);
3665 } while (afs_Analyze
3666 (tc, code, &tvc->fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS,
3667 SHARED_LOCK, NULL));
3668 /* This call is done only to have the callback things handled correctly */
3669 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
3673 *aoutSize = sizeof(afs_int32);
3678 DECL_PIOCTL(PResidencyCmd)
3680 register afs_int32 code;
3683 struct ResidencyCmdInputs *Inputs;
3684 struct ResidencyCmdOutputs *Outputs;
3685 struct VenusFid tfid;
3688 Inputs = (struct ResidencyCmdInputs *)ain;
3689 Outputs = (struct ResidencyCmdOutputs *)aout;
3692 if (!ain || ainSize != sizeof(struct ResidencyCmdInputs))
3697 Fid = &avc->fid.Fid;
3699 tfid.Cell = avc->fid.Cell;
3700 tfid.Fid.Volume = Fid->Volume;
3701 tfid.Fid.Vnode = Fid->Vnode;
3702 tfid.Fid.Unique = Fid->Unique;
3704 tvc = afs_GetVCache(&tfid, areq, NULL, NULL);
3705 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,
3706 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid);
3710 if (Inputs->command) {
3712 tc = afs_Conn(&tvc->fid, areq, SHARED_LOCK);
3716 RXAFS_ResidencyCmd(tc->id, Fid, Inputs,
3717 (struct ResidencyCmdOutputs *)aout);
3721 } while (afs_Analyze
3722 (tc, code, &tvc->fid, areq,
3723 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS, SHARED_LOCK, NULL));
3724 /* This call is done to have the callback things handled correctly */
3725 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
3726 } else { /* just a status request, return also link data */
3728 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
3729 Outputs->chars[0] = 0;
3730 if (vType(tvc) == VLNK) {
3731 ObtainWriteLock(&tvc->lock, 555);
3732 if (afs_HandleLink(tvc, areq) == 0)
3733 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS);
3734 ReleaseWriteLock(&tvc->lock);
3741 *aoutSize = sizeof(struct ResidencyCmdOutputs);
3746 DECL_PIOCTL(PCallBackAddr)
3749 afs_uint32 addr, code;
3755 struct unixuser *tu;
3756 struct srvAddr **addrs;
3758 /*AFS_STATCNT(PCallBackAddr); */
3759 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
3760 return EIO; /* Inappropriate ioctl for device */
3762 if (!afs_osi_suser(acred))
3765 if (ainSize < sizeof(afs_int32))
3768 memcpy(&addr, ain, sizeof(afs_int32));
3770 ObtainReadLock(&afs_xinterface);
3771 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
3772 if (afs_cb_interface.addr_in[i] == addr)
3776 ReleaseWriteLock(&afs_xinterface);
3778 if (afs_cb_interface.addr_in[i] != addr)
3781 ObtainReadLock(&afs_xserver); /* Necessary? */
3782 ObtainReadLock(&afs_xsrvAddr);
3785 for (i = 0; i < NSERVERS; i++) {
3786 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3791 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
3793 for (i = 0; i < NSERVERS; i++) {
3794 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3795 if (j >= srvAddrCount)
3801 ReleaseReadLock(&afs_xsrvAddr);
3802 ReleaseReadLock(&afs_xserver);
3804 for (i = 0; i < j; i++) {
3810 /* vlserver has no callback conn */
3811 if (sa->sa_portal == AFS_VLPORT) {
3815 if (!ts->cell) /* not really an active server, anyway, it must */
3816 continue; /* have just been added by setsprefs */
3818 /* get a connection, even if host is down; bumps conn ref count */
3819 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK);
3820 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
3821 1 /*force */ , 1 /*create */ , SHARED_LOCK);
3822 afs_PutUser(tu, SHARED_LOCK);
3826 if ((sa->sa_flags & SRVADDR_ISDOWN) || afs_HaveCallBacksFrom(ts)) {
3827 if (sa->sa_flags & SRVADDR_ISDOWN) {
3828 rx_SetConnDeadTime(tc->id, 3);
3830 #ifdef RX_ENABLE_LOCKS
3832 #endif /* RX_ENABLE_LOCKS */
3833 code = RXAFS_CallBackRxConnAddr(tc->id, &addr);
3834 #ifdef RX_ENABLE_LOCKS
3836 #endif /* RX_ENABLE_LOCKS */
3838 afs_PutConn(tc, SHARED_LOCK); /* done with it now */
3839 } /* Outer loop over addrs */
3840 #endif /* UKERNEL */