Bug Summary

File:afs/afs_pioctl.c
Location:line 5189, column 6
Description:Value stored to 'code' is never read

Annotated Source Code

1/*
2 * Copyright 2000, International Business Machines Corporation and others.
3 * All Rights Reserved.
4 *
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
8 */
9
10#include <afsconfig.h>
11#include "afs/param.h"
12
13
14#include "afs/sysincludes.h" /* Standard vendor system headers */
15#ifdef AFS_OBSD_ENV
16#include "h/syscallargs.h"
17#endif
18#ifdef AFS_FBSD_ENV1
19#include "h/sysproto.h"
20#endif
21#ifdef AFS_NBSD40_ENV
22#include <sys/ioctl.h>
23#include <sys/ioccom.h>
24#endif
25#include "afsincludes.h" /* Afs-based standard headers */
26#include "afs/afs_stats.h" /* afs statistics */
27#include "afs/vice.h"
28#include "afs/afs_bypasscache.h"
29#include "rx/rx_globals.h"
30#include "token.h"
31
32struct VenusFid afs_rootFid;
33afs_int32 afs_waitForever = 0;
34short afs_waitForeverCount = 0;
35afs_int32 afs_showflags = GAGUSER1 | GAGCONSOLE2; /* show all messages */
36
37afs_int32 afs_is_disconnected;
38afs_int32 afs_is_discon_rw;
39/* On reconnection, turn this knob on until it finishes,
40 * then turn it off.
41 */
42afs_int32 afs_in_sync = 0;
43
44struct afs_pdata {
45 char *ptr;
46 size_t remaining;
47};
48
49/*
50 * A set of handy little functions for encoding and decoding
51 * pioctls without losing your marbles, or memory integrity
52 */
53
54static_inlinestatic inline int
55afs_pd_alloc(struct afs_pdata *apd, size_t size)
56{
57
58 if (size > AFS_LRALLOCSIZ4096)
59 apd->ptr = osi_Allocafs_osi_Alloc(size + 1);
60 else
61 apd->ptr = osi_AllocLargeSpace(AFS_LRALLOCSIZ4096);
62
63 if (apd->ptr == NULL((void *)0))
64 return ENOMEM12;
65
66 apd->remaining = size;
67
68 return 0;
69}
70
71static_inlinestatic inline void
72afs_pd_free(struct afs_pdata *apd)
73{
74 if (apd->ptr == NULL((void *)0))
75 return;
76
77 if (apd->remaining > AFS_LRALLOCSIZ4096)
78 osi_Freeafs_osi_Free(apd->ptr, apd->remaining + 1);
79 else
80 osi_FreeLargeSpace(apd->ptr);
81
82 apd->ptr = NULL((void *)0);
83 apd->remaining = 0;
84}
85
86static_inlinestatic inline char *
87afs_pd_where(struct afs_pdata *apd)
88{
89 return apd ? apd->ptr : NULL((void *)0);
90}
91
92static_inlinestatic inline size_t
93afs_pd_remaining(struct afs_pdata *apd)
94{
95 return apd ? apd->remaining : 0;
96}
97
98static_inlinestatic inline int
99afs_pd_skip(struct afs_pdata *apd, size_t skip)
100{
101 if (apd == NULL((void *)0) || apd->remaining < skip)
102 return EINVAL22;
103 apd->remaining -= skip;
104 apd->ptr += skip;
105
106 return 0;
107}
108
109static_inlinestatic inline int
110afs_pd_getBytes(struct afs_pdata *apd, void *dest, size_t bytes)
111{
112 if (apd == NULL((void *)0) || apd->remaining < bytes)
113 return EINVAL22;
114 apd->remaining -= bytes;
115 memcpy(dest, apd->ptr, bytes);
116 apd->ptr += bytes;
117 return 0;
118}
119
120static_inlinestatic inline int
121afs_pd_getInt(struct afs_pdata *apd, afs_int32 *val)
122{
123 return afs_pd_getBytes(apd, val, sizeof(*val));
124}
125
126static_inlinestatic inline int
127afs_pd_getUint(struct afs_pdata *apd, afs_uint32 *val)
128{
129 return afs_pd_getBytes(apd, val, sizeof(*val));
130}
131
132static_inlinestatic inline void *
133afs_pd_inline(struct afs_pdata *apd, size_t bytes)
134{
135 void *ret;
136
137 if (apd == NULL((void *)0) || apd->remaining < bytes)
138 return NULL((void *)0);
139
140 ret = apd->ptr;
141
142 apd->remaining -= bytes;
143 apd->ptr += bytes;
144
145 return ret;
146}
147
148static_inlinestatic inline void
149afs_pd_xdrStart(struct afs_pdata *apd, XDR *xdrs, enum xdr_op op) {
150 xdrmem_createafs_xdrmem_create(xdrs, apd->ptr, apd->remaining, op);
151}
152
153static_inlinestatic inline void
154afs_pd_xdrEnd(struct afs_pdata *apd, XDR *xdrs) {
155 size_t pos;
156
157 pos = xdr_getpos(xdrs)(*(xdrs)->x_ops->x_getpostn)(xdrs);
158 apd->ptr += pos;
159 apd->remaining -= pos;
160 xdr_destroy(xdrs)if ((xdrs)->x_ops->x_destroy) (*(xdrs)->x_ops->x_destroy
)(xdrs);
161}
162
163
164
165static_inlinestatic inline int
166afs_pd_getString(struct afs_pdata *apd, char *str, size_t maxLen)
167{
168 size_t len;
169
170 if (apd == NULL((void *)0) || apd->remaining <= 0)
171 return EINVAL22;
172 len = strlen(apd->ptr) + 1;
173 if (len > maxLen)
174 return E2BIG7;
175 memcpy(str, apd->ptr, len);
176 apd->ptr += len;
177 apd->remaining -= len;
178 return 0;
179}
180
181static_inlinestatic inline int
182afs_pd_getStringPtr(struct afs_pdata *apd, char **str)
183{
184 size_t len;
185
186 if (apd == NULL((void *)0) || apd->remaining <= 0)
187 return EINVAL22;
188 len = strlen(apd->ptr) + 1;
189 *str = apd->ptr;
190 apd->ptr += len;
191 apd->remaining -= len;
192 return 0;
193}
194
195static_inlinestatic inline int
196afs_pd_putBytes(struct afs_pdata *apd, const void *bytes, size_t len)
197{
198 if (apd == NULL((void *)0) || apd->remaining < len)
199 return E2BIG7;
200 memcpy(apd->ptr, bytes, len);
201 apd->ptr += len;
202 apd->remaining -= len;
203 return 0;
204}
205
206static_inlinestatic inline int
207afs_pd_putInt(struct afs_pdata *apd, afs_int32 val)
208{
209 return afs_pd_putBytes(apd, &val, sizeof(val));
210}
211
212static_inlinestatic inline int
213afs_pd_putString(struct afs_pdata *apd, char *str) {
214
215 /* Add 1 so we copy the NULL too */
216 return afs_pd_putBytes(apd, str, strlen(str) +1);
217}
218
219/*!
220 * \defgroup pioctl Path IOCTL functions
221 *
222 * DECL_PIOCTL is a macro defined to contain the following parameters for functions:
223 *
224 * \param[in] avc
225 * the AFS vcache structure in use by pioctl
226 * \param[in] afun
227 * not in use
228 * \param[in] areq
229 * the AFS vrequest structure
230 * \param[in] ain
231 * an afs_pdata block describing the data received from the caller
232 * \param[in] aout
233 * an afs_pdata block describing a pre-allocated block for output
234 * \param[in] acred
235 * UNIX credentials structure underlying the operation
236 */
237
238#define DECL_PIOCTL(x)static int x(struct vcache *avc, int afun, struct vrequest *areq
, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t *
*acred) \
239 static int x(struct vcache *avc, int afun, struct vrequest *areq, \
240 struct afs_pdata *ain, struct afs_pdata *aout, \
241 afs_ucred_t **acred)
242
243/* Prototypes for pioctl routines */
244DECL_PIOCTL(PGetFID)static int PGetFID(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
245DECL_PIOCTL(PSetAcl)static int PSetAcl(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
246DECL_PIOCTL(PStoreBehind)static int PStoreBehind(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
247DECL_PIOCTL(PGCPAGs)static int PGCPAGs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
248DECL_PIOCTL(PGetAcl)static int PGetAcl(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
249DECL_PIOCTL(PNoop)static int PNoop(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
250DECL_PIOCTL(PBogus)static int PBogus(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
251DECL_PIOCTL(PGetFileCell)static int PGetFileCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
252DECL_PIOCTL(PGetWSCell)static int PGetWSCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
253DECL_PIOCTL(PGetUserCell)static int PGetUserCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
254DECL_PIOCTL(PSetTokens)static int PSetTokens(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
255DECL_PIOCTL(PSetTokens2)static int PSetTokens2(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
256DECL_PIOCTL(PGetVolumeStatus)static int PGetVolumeStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
257DECL_PIOCTL(PSetVolumeStatus)static int PSetVolumeStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
258DECL_PIOCTL(PFlush)static int PFlush(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
259DECL_PIOCTL(PNewStatMount)static int PNewStatMount(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
260DECL_PIOCTL(PGetTokens)static int PGetTokens(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
261DECL_PIOCTL(PGetTokens2)static int PGetTokens2(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
262DECL_PIOCTL(PUnlog)static int PUnlog(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
263DECL_PIOCTL(PMariner)static int PMariner(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
264DECL_PIOCTL(PCheckServers)static int PCheckServers(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
265DECL_PIOCTL(PCheckVolNames)static int PCheckVolNames(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
266DECL_PIOCTL(PCheckAuth)static int PCheckAuth(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
267DECL_PIOCTL(PFindVolume)static int PFindVolume(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
268DECL_PIOCTL(PViceAccess)static int PViceAccess(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
269DECL_PIOCTL(PSetCacheSize)static int PSetCacheSize(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
270DECL_PIOCTL(PGetCacheSize)static int PGetCacheSize(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
271DECL_PIOCTL(PRemoveCallBack)static int PRemoveCallBack(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
272DECL_PIOCTL(PNewCell)static int PNewCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
273DECL_PIOCTL(PNewAlias)static int PNewAlias(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
274DECL_PIOCTL(PListCells)static int PListCells(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
275DECL_PIOCTL(PListAliases)static int PListAliases(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
276DECL_PIOCTL(PRemoveMount)static int PRemoveMount(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
277DECL_PIOCTL(PGetCellStatus)static int PGetCellStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
278DECL_PIOCTL(PSetCellStatus)static int PSetCellStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
279DECL_PIOCTL(PFlushVolumeData)static int PFlushVolumeData(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
280DECL_PIOCTL(PGetVnodeXStatus)static int PGetVnodeXStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
281DECL_PIOCTL(PGetVnodeXStatus2)static int PGetVnodeXStatus2(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
282DECL_PIOCTL(PSetSysName)static int PSetSysName(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
283DECL_PIOCTL(PSetSPrefs)static int PSetSPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
284DECL_PIOCTL(PSetSPrefs33)static int PSetSPrefs33(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
285DECL_PIOCTL(PGetSPrefs)static int PGetSPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
286DECL_PIOCTL(PExportAfs)static int PExportAfs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
287DECL_PIOCTL(PGag)static int PGag(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
288DECL_PIOCTL(PTwiddleRx)static int PTwiddleRx(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
289DECL_PIOCTL(PGetInitParams)static int PGetInitParams(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
290DECL_PIOCTL(PGetRxkcrypt)static int PGetRxkcrypt(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
291DECL_PIOCTL(PSetRxkcrypt)static int PSetRxkcrypt(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
292DECL_PIOCTL(PGetCPrefs)static int PGetCPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
293DECL_PIOCTL(PSetCPrefs)static int PSetCPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
294DECL_PIOCTL(PFlushMount)static int PFlushMount(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
295DECL_PIOCTL(PRxStatProc)static int PRxStatProc(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
296DECL_PIOCTL(PRxStatPeer)static int PRxStatPeer(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
297DECL_PIOCTL(PPrefetchFromTape)static int PPrefetchFromTape(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
298DECL_PIOCTL(PFsCmd)static int PFsCmd(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
299DECL_PIOCTL(PCallBackAddr)static int PCallBackAddr(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
300DECL_PIOCTL(PDiscon)static int PDiscon(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
301DECL_PIOCTL(PNFSNukeCreds)static int PNFSNukeCreds(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred);
302DECL_PIOCTL(PNewUuid)static int PNewUuid(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
303DECL_PIOCTL(PPrecache)static int PPrecache(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
304DECL_PIOCTL(PGetPAG)static int PGetPAG(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred);
305#if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
306DECL_PIOCTL(PSetCachingThreshold)static int PSetCachingThreshold(struct vcache *avc, int afun,
struct vrequest *areq, struct afs_pdata *ain, struct afs_pdata
*aout, afs_ucred_t **acred);
307#endif
308
309/*
310 * A macro that says whether we're going to need HandleClientContext().
311 * This is currently used only by the nfs translator.
312 */
313#if !defined(AFS_NONFSTRANS1) || defined(AFS_AIX_IAUTH_ENV)
314#define AFS_NEED_CLIENTCONTEXT
315#endif
316
317/* Prototypes for private routines */
318#ifdef AFS_NEED_CLIENTCONTEXT
319static int HandleClientContext(struct afs_ioctl *ablob, int *com,
320 afs_ucred_t **acred,
321 afs_ucred_t *credp);
322#endif
323int HandleIoctl(struct vcache *avc, afs_int32 acom,
324 struct afs_ioctl *adata);
325int afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
326 struct afs_ioctl *ablob, int afollow,
327 afs_ucred_t **acred);
328static int Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
329 afs_ucred_t *acred);
330
331typedef int (*pioctlFunction) (struct vcache *, int, struct vrequest *,
332 struct afs_pdata *, struct afs_pdata *,
333 afs_ucred_t **);
334
335static pioctlFunction VpioctlSw[] = {
336 PBogus, /* 0 */
337 PSetAcl, /* 1 */
338 PGetAcl, /* 2 */
339 PSetTokens, /* 3 */
340 PGetVolumeStatus, /* 4 */
341 PSetVolumeStatus, /* 5 */
342 PFlush, /* 6 */
343 PBogus, /* 7 */
344 PGetTokens, /* 8 */
345 PUnlog, /* 9 */
346 PCheckServers, /* 10 */
347 PCheckVolNames, /* 11 */
348 PCheckAuth, /* 12 */
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 */
362 PNewCell, /* 26 */
363 PListCells, /* 27 */
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 */
406};
407
408static pioctlFunction CpioctlSw[] = {
409 PBogus, /* 0 */
410 PNewAlias, /* 1 -- create new cell alias */
411 PListAliases, /* 2 -- list cell aliases */
412 PCallBackAddr, /* 3 -- request addr for callback rxcon */
413 PBogus, /* 4 */
414 PDiscon, /* 5 -- get/set discon mode */
415 PBogus, /* 6 */
416 PGetTokens2, /* 7 */
417 PSetTokens2, /* 8 */
418 PNewUuid, /* 9 */
419 PBogus, /* 10 */
420 PBogus, /* 11 */
421 PPrecache, /* 12 */
422 PGetPAG, /* 13 */
423};
424
425static pioctlFunction OpioctlSw[] = {
426 PBogus, /* 0 */
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 */
430#else
431 PNoop /* 2 -- get/set cache-bypass size threshold */
432#endif
433};
434
435#define PSetClientContext99 99 /* Special pioctl to setup caller's creds */
436int afs_nobody = NFS_NOBODY-2;
437
438int
439HandleIoctl(struct vcache *avc, afs_int32 acom,
440 struct afs_ioctl *adata)
441{
442 afs_int32 code;
443
444 code = 0;
445 AFS_STATCNT(HandleIoctl)((afs_cmstats.callInfo.C_HandleIoctl)++);
446
447 switch (acom & 0xff) {
448 case 1:
449 avc->f.states |= CSafeStore0x00000040;
450 avc->asynchrony = 0;
451 /* SXW - Should we force a MetaData flush for this flag setting */
452 break;
453
454 /* case 2 used to be abort store, but this is no longer provided,
455 * since it is impossible to implement under normal Unix.
456 */
457
458 case 3:{
459 /* return the name of the cell this file is open on */
460 struct cell *tcell;
461 afs_int32 i;
462
463 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK1);
464 if (tcell) {
465 i = strlen(tcell->cellName) + 1; /* bytes to copy out */
466
467 if (i > adata->out_size) {
468 /* 0 means we're not interested in the output */
469 if (adata->out_size != 0)
470 code = EFAULT14;
471 } else {
472 /* do the copy */
473 AFS_COPYOUT(tcell->cellName, adata->out, i, code)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 473); } while (0); code = copyout((tcell->cellName),((adata
->out)),(i)); if (haveGlock) do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 473); (void)0; } while (0); } while(0);
474 }
475 afs_PutCell(tcell, READ_LOCK);
476 } else
477 code = ENOTTY25;
478 }
479 break;
480
481 case 49: /* VIOC_GETINITPARAMS */
482 if (adata->out_size < sizeof(struct cm_initparams)) {
483 code = EFAULT14;
484 } else {
485 AFS_COPYOUT(&cm_initParams, adata->out,do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 486); } while (0); code = copyout((&cm_initParams),((adata
->out)),(sizeof(struct cm_initparams))); if (haveGlock) do
{ (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 486); (void)0; } while (0); } while(0)
486 sizeof(struct cm_initparams), code)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 486); } while (0); code = copyout((&cm_initParams),((adata
->out)),(sizeof(struct cm_initparams))); if (haveGlock) do
{ (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 486); (void)0; } while (0); } while(0);
487 }
488 break;
489
490 default:
491
492 code = EINVAL22;
493#ifdef AFS_AIX51_ENV
494 code = ENOSYS78;
495#endif
496 break;
497 }
498 return code; /* so far, none implemented */
499}
500
501#ifdef AFS_AIX_ENV
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.
505 */
506int
507afs_ioctl(struct vcache *tvc, int cmd, int argdata)
508{
509 struct afs_ioctl data;
510 int error = 0;
511
512 AFS_STATCNT(afs_ioctl)((afs_cmstats.callInfo.C_afs_ioctl)++);
513 if (((cmd >> 8) & 0xff) == 'V') {
514 /* This is a VICEIOCTL call */
515 AFS_COPYIN(arg, (caddr_t) & data, sizeof(data), error)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 515); } while (0); error = copyin(((data)),((caddr_t) &
data),(sizeof(data))); if (haveGlock) do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 515); (void)0; } while (0); } while(0);
516 if (error)
517 return (error);
518 error = HandleIoctl(tvc, cmd, &data);
519 return (error);
520 } else {
521 /* No-op call; just return. */
522 return (ENOTTY25);
523 }
524}
525# if defined(AFS_AIX32_ENV)
526# if defined(AFS_AIX51_ENV)
527# ifdef __64BIT__
528int
529kioctl(int fdes, int com, caddr_t argdata, caddr_t ext, caddr_t arg2,
530 caddr_t arg3)
531# else /* __64BIT__ */
532int
533kioctl32(int fdes, int com, caddr_t argdata, caddr_t ext, caddr_t arg2,
534 caddr_t arg3)
535# endif /* __64BIT__ */
536# else
537int
538kioctl(int fdes, int com, caddr_t argdata, caddr_t ext)
539# endif /* AFS_AIX51_ENV */
540{
541 struct a {
542 int fd, com;
543 caddr_t argdata, ext;
544# ifdef AFS_AIX51_ENV
545 caddr_t arg2, arg3;
546# endif
547 } u_uap, *uap = &u_uap;
548 struct file *fd;
549 struct vcache *tvc;
550 int ioctlDone = 0, code = 0;
551
552 AFS_STATCNT(afs_xioctl)((afs_cmstats.callInfo.C_afs_xioctl)++);
553 uap->fd = fdes;
554 uap->com = com;
555 uap->argdata = argdata;
556# ifdef AFS_AIX51_ENV
557 uap->arg2 = arg2;
558 uap->arg3 = arg3;
559# endif
560 if (setuerror(getf(uap->fd, &fd))u.u_error = (getf(uap->fd, &fd))) {
561 return -1;
562 }
563 if (fd->f_type == DTYPE_VNODE1) {
564 /* good, this is a vnode; next see if it is an AFS vnode */
565 tvc = VTOAFS(fd->f_vnode)((struct vcache *)(fd->f_vnode)->v_data); /* valid, given a vnode */
566 if (tvc && IsAfsVnode(AFSTOV(tvc))((((tvc)->v))->v_op == &afs_vnodeops)) {
567 /* This is an AFS vnode */
568 if (((uap->com >> 8) & 0xff) == 'V') {
569 struct afs_ioctl *datap;
570 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 570); (void)0; } while (0);
571 datap =
572 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ(64*sizeof(void *)));
573 code=copyin_afs_ioctl((char *)uap->argdata, datap);
574 if (code) {
575 osi_FreeSmallSpace(datap);
576 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 576); } while (
0);
577# if defined(AFS_AIX41_ENV)
578 ufdrele(uap->fd);
579# endif
580 return (setuerror(code)u.u_error = (code), code);
581 }
582 code = HandleIoctl(tvc, uap->com, datap);
583 osi_FreeSmallSpace(datap);
584 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 584); } while (
0);
585 ioctlDone = 1;
586# if defined(AFS_AIX41_ENV)
587 ufdrele(uap->fd);
588# endif
589 }
590 }
591 }
592 if (!ioctlDone) {
593# if defined(AFS_AIX41_ENV)
594 ufdrele(uap->fd);
595# if defined(AFS_AIX51_ENV)
596# ifdef __64BIT__
597 code = okioctl(fdes, com, argdata, ext, arg2, arg3);
598# else /* __64BIT__ */
599 code = okioctl32(fdes, com, argdata, ext, arg2, arg3);
600# endif /* __64BIT__ */
601# else /* !AFS_AIX51_ENV */
602 code = okioctl(fdes, com, argdata, ext);
603# endif /* AFS_AIX51_ENV */
604 return code;
605# elif defined(AFS_AIX32_ENV)
606 okioctl(fdes, com, argdata, ext);
607# endif
608 }
609# if defined(KERNEL_HAVE_UERROR)
610 if (!getuerror()u.u_error)
611 setuerror(code)u.u_error = (code);
612# if !defined(AFS_AIX41_ENV)
613 return (getuerror()u.u_error? -1 : u.u_ioctlrv);
614# else
615 return getuerror()u.u_error? -1 : 0;
616# endif
617# endif
618 return 0;
619}
620# endif
621
622#elif defined(AFS_SGI_ENV)
623# if defined(AFS_SGI65_ENV)
624afs_ioctl(OSI_VN_DECL(tvc)struct vnode *tvc, int cmd, void *argdata, int flag, cred_t * cr,
625 rval_t * rvalp, struct vopbd * vbds)
626# else
627afs_ioctl(OSI_VN_DECL(tvc)struct vnode *tvc, int cmd, void *argdata, int flag, cred_t * cr,
628 rval_t * rvalp, struct vopbd * vbds)
629# endif
630{
631 struct afs_ioctl data;
632 int error = 0;
633 int locked;
634
635 OSI_VN_CONVERT(tvc);
636
637 AFS_STATCNT(afs_ioctl)((afs_cmstats.callInfo.C_afs_ioctl)++);
638 if (((cmd >> 8) & 0xff) == 'V') {
639 /* This is a VICEIOCTL call */
640 error = copyin_afs_ioctl(argdata, &data);
641 if (error)
642 return (error);
643 locked = ISAFS_GLOCK()((((&afs_global_mtx)->mtx_lock & ~(0x00000001 | 0x00000002
| 0x00000004)) == (uintptr_t)(__curthread())));
644 if (!locked)
645 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 645); (void)0; } while (0);
646 error = HandleIoctl(tvc, cmd, &data);
647 if (!locked)
648 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 648); } while (
0);
649 return (error);
650 } else {
651 /* No-op call; just return. */
652 return (ENOTTY25);
653 }
654}
655#elif defined(AFS_SUN5_ENV)
656struct afs_ioctl_sys {
657 int fd;
658 int com;
659 int argdata;
660};
661
662int
663afs_xioctl(struct afs_ioctl_sys *uap, rval_t *rvp)
664{
665 struct file *fd;
666 struct vcache *tvc;
667 int ioctlDone = 0, code = 0;
668
669 AFS_STATCNT(afs_xioctl)((afs_cmstats.callInfo.C_afs_xioctl)++);
670 fd = getf(uap->fd);
671 if (!fd)
672 return (EBADF9);
673 if (fd->f_vnode->v_type == VREG || fd->f_vnode->v_type == VDIR) {
674 tvc = VTOAFS(fd->f_vnode)((struct vcache *)(fd->f_vnode)->v_data); /* valid, given a vnode */
675 if (tvc && IsAfsVnode(AFSTOV(tvc))((((tvc)->v))->v_op == &afs_vnodeops)) {
676 /* This is an AFS vnode */
677 if (((uap->com >> 8) & 0xff) == 'V') {
678 struct afs_ioctl *datap;
679 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 679); (void)0; } while (0);
680 datap =
681 (struct afs_ioctl *)osi_AllocSmallSpace(AFS_SMALLOCSIZ(64*sizeof(void *)));
682 code=copyin_afs_ioctl((char *)uap->argdata, datap);
683 if (code) {
684 osi_FreeSmallSpace(datap);
685 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 685); } while (
0);
686 releasef(uap->fd);
687 return (EFAULT14);
688 }
689 code = HandleIoctl(tvc, uap->com, datap);
690 osi_FreeSmallSpace(datap);
691 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 691); } while (
0);
692 ioctlDone = 1;
693 }
694 }
695 }
696 releasef(uap->fd);
697 if (!ioctlDone)
698 code = ioctl(uap, rvp);
699
700 return (code);
701}
702#elif defined(AFS_LINUX22_ENV)
703struct afs_ioctl_sys {
704 unsigned int com;
705 unsigned long argdata;
706};
707int
708afs_xioctl(struct inode *ip, struct file *fp, unsigned int com,
709 unsigned long argdata)
710{
711 struct afs_ioctl_sys ua, *uap = &ua;
712 struct vcache *tvc;
713 int code = 0;
714
715 AFS_STATCNT(afs_xioctl)((afs_cmstats.callInfo.C_afs_xioctl)++);
716 ua.com = com;
717 ua.argdata = argdata;
718
719 tvc = VTOAFS(ip)((struct vcache *)(ip)->v_data);
720 if (tvc && IsAfsVnode(AFSTOV(tvc))((((tvc)->v))->v_op == &afs_vnodeops)) {
721 /* This is an AFS vnode */
722 if (((uap->com >> 8) & 0xff) == 'V') {
723 struct afs_ioctl *datap;
724 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 724); (void)0; } while (0);
725 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ(64*sizeof(void *)));
726 code = copyin_afs_ioctl((char *)uap->argdata, datap);
727 if (code) {
728 osi_FreeSmallSpace(datap);
729 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 729); } while (
0);
730 return -code;
731 }
732 code = HandleIoctl(tvc, uap->com, datap);
733 osi_FreeSmallSpace(datap);
734 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 734); } while (
0);
735 }
736 else
737 code = EINVAL22;
738 }
739 return -code;
740}
741#elif defined(AFS_DARWIN_ENV) && !defined(AFS_DARWIN80_ENV)
742struct ioctl_args {
743 int fd;
744 u_long com;
745 caddr_t argdata;
746};
747
748int
749afs_xioctl(afs_proc_t *p, struct ioctl_args *uap, register_t *retval)
750{
751 struct file *fd;
752 struct vcache *tvc;
753 int ioctlDone = 0, code = 0;
754
755 AFS_STATCNT(afs_xioctl)((afs_cmstats.callInfo.C_afs_xioctl)++);
756 if ((code = fdgetf(p, uap->fd, &fd)))
757 return code;
758 if (fd->f_type == DTYPE_VNODE1) {
759 tvc = VTOAFS((struct vnode *)fd->f_data)((struct vcache *)((struct vnode *)fd->f_data)->v_data); /* valid, given a vnode */
760 if (tvc && IsAfsVnode(AFSTOV(tvc))((((tvc)->v))->v_op == &afs_vnodeops)) {
761 /* This is an AFS vnode */
762 if (((uap->com >> 8) & 0xff) == 'V') {
763 struct afs_ioctl *datap;
764 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 764); (void)0; } while (0);
765 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ(64*sizeof(void *)));
766 code = copyin_afs_ioctl((char *)uap->argdata, datap);
767 if (code) {
768 osi_FreeSmallSpace(datap);
769 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 769); } while (
0);
770 return code;
771 }
772 code = HandleIoctl(tvc, uap->com, datap);
773 osi_FreeSmallSpace(datap);
774 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 774); } while (
0);
775 ioctlDone = 1;
776 }
777 }
778 }
779
780 if (!ioctlDone)
781 return ioctl(p, uap, retval);
782
783 return (code);
784}
785#elif defined(AFS_XBSD_ENV1)
786# if defined(AFS_FBSD_ENV1)
787# define argdata data
788int
789afs_xioctl(struct thread *td, struct ioctl_args *uap,
790 register_t *retval)
791{
792 afs_proc_t *p = td->td_proc;
793# elif defined(AFS_NBSD_ENV)
794int
795afs_xioctl(afs_proc_t *p, const struct sys_ioctl_args *uap, register_t *retval)
796{
797# else
798struct ioctl_args {
799 int fd;
800 u_long com;
801 caddr_t argdata;
802};
803
804int
805afs_xioctl(afs_proc_t *p, const struct ioctl_args *uap, register_t *retval)
806{
807# endif
808 struct filedesc *fdp;
809 struct vcache *tvc;
810 int ioctlDone = 0, code = 0;
811 struct file *fd;
812
813 AFS_STATCNT(afs_xioctl)((afs_cmstats.callInfo.C_afs_xioctl)++);
814#if defined(AFS_NBSD40_ENV)
815 fdp = p->l_proc->p_fd;
816#else
817 fdp = p->p_fd;
818#endif
819#if defined(AFS_NBSD50_ENV)
820 if ((fd = fd_getfile(SCARG(uap, fd))) == NULL((void *)0))
821 return (EBADF9);
822#else
823 if ((uap->fd >= fdp->fd_nfiles)
824 || ((fd = fdp->fd_ofiles[uap->fd]) == NULL((void *)0)))
825 return EBADF9;
826#endif
827 if ((fd->f_flag & (FREAD0x0001 | FWRITE0x0002)) == 0)
828 return EBADF9;
829 /* first determine whether this is any sort of vnode */
830 if (fd->f_type == DTYPE_VNODE1) {
831 /* good, this is a vnode; next see if it is an AFS vnode */
832# if defined(AFS_OBSD_ENV)
833 tvc =
834 IsAfsVnode((struct vnode *)fd->(((struct vnode *)fd-> f_data)->v_op == &afs_vnodeops
)
835 f_data)(((struct vnode *)fd-> f_data)->v_op == &afs_vnodeops
) ? VTOAFS((struct vnode *)fd->f_data)((struct vcache *)((struct vnode *)fd->f_data)->v_data) : NULL((void *)0);
836# else
837 tvc = VTOAFS((struct vnode *)fd->f_data)((struct vcache *)((struct vnode *)fd->f_data)->v_data); /* valid, given a vnode */
838# endif
839 if (tvc && IsAfsVnode((struct vnode *)fd->f_data)(((struct vnode *)fd->f_data)->v_op == &afs_vnodeops
)) {
840 /* This is an AFS vnode */
841#if defined(AFS_NBSD50_ENV)
842 if (((SCARG(uap, com) >> 8) & 0xff) == 'V') {
843#else
844 if (((uap->com >> 8) & 0xff) == 'V') {
845#endif
846 struct afs_ioctl *datap;
847 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 847); (void)0; } while (0);
848 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ(64*sizeof(void *)));
849#if defined(AFS_NBSD50_ENV)
850 code = copyin_afs_ioctl(SCARG(uap, data), datap);
851#else
852 code = copyin_afs_ioctl((char *)uap->argdata, datap);
853#endif
854 if (code) {
855 osi_FreeSmallSpace(datap);
856 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 856); } while (
0);
857 return code;
858 }
859#if defined(AFS_NBSD50_ENV)
860 code = HandleIoctl(tvc, SCARG(uap, com), datap);
861#else
862 code = HandleIoctl(tvc, uap->com, datap);
863#endif
864 osi_FreeSmallSpace(datap);
865 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 865); } while (
0);
866 ioctlDone = 1;
867 }
868 }
869 }
870
871#if defined(AFS_NBSD50_ENV)
872 fd_putfile(SCARG(uap, fd));
873#endif
874
875 if (!ioctlDone) {
876# if defined(AFS_FBSD_ENV1)
877 return ioctl(td, uap);
878# elif defined(AFS_OBSD_ENV)
879 code = sys_ioctl(p, uap, retval);
880# elif defined(AFS_NBSD_ENV)
881 code = sys_ioctl(p, uap, retval);
882# endif
883 }
884
885 return (code);
886}
887#elif defined(UKERNEL)
888int
889afs_xioctl(void)
890{
891 struct a {
892 int fd;
893 int com;
894 caddr_t argdata;
895 } *uap = (struct a *)get_user_struct()->u_ap;
896 struct file *fd;
897 struct vcache *tvc;
898 int ioctlDone = 0, code = 0;
899
900 AFS_STATCNT(afs_xioctl)((afs_cmstats.callInfo.C_afs_xioctl)++);
901
902 fd = getf(uap->fd);
903 if (!fd)
904 return (EBADF9);
905 /* first determine whether this is any sort of vnode */
906 if (fd->f_type == DTYPE_VNODE1) {
907 /* good, this is a vnode; next see if it is an AFS vnode */
908 tvc = VTOAFS((struct vnode *)fd->f_data)((struct vcache *)((struct vnode *)fd->f_data)->v_data); /* valid, given a vnode */
909 if (tvc && IsAfsVnode(AFSTOV(tvc))((((tvc)->v))->v_op == &afs_vnodeops)) {
910 /* This is an AFS vnode */
911 if (((uap->com >> 8) & 0xff) == 'V') {
912 struct afs_ioctl *datap;
913 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 913); (void)0; } while (0);
914 datap = osi_AllocSmallSpace(AFS_SMALLOCSIZ(64*sizeof(void *)));
915 code=copyin_afs_ioctl((char *)uap->argdata, datap);
916 if (code) {
917 osi_FreeSmallSpace(datap);
918 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 918); } while (
0);
919
920 return (setuerror(code)u.u_error = (code), code);
921 }
922 code = HandleIoctl(tvc, uap->com, datap);
923 osi_FreeSmallSpace(datap);
924 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 924); } while (
0);
925 ioctlDone = 1;
926 }
927 }
928 }
929
930 if (!ioctlDone) {
931 ioctl();
932 }
933
934 return 0;
935}
936#endif /* AFS_HPUX102_ENV */
937
938#if defined(AFS_SGI_ENV)
939 /* "pioctl" system call entry point; just pass argument to the parameterized
940 * call below */
941struct pioctlargs {
942 char *path;
943 sysarg_t cmd;
944 caddr_t cmarg;
945 sysarg_t follow;
946};
947int
948afs_pioctl(struct pioctlargs *uap, rval_t * rvp)
949{
950 int code;
951
952 AFS_STATCNT(afs_pioctl)((afs_cmstats.callInfo.C_afs_pioctl)++);
953 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 953); (void)0; } while (0);
954 code = afs_syscall_pioctl(uap->path, uap->cmd, uap->cmarg, uap->follow);
955 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 955); } while (
0);
956# ifdef AFS_SGI64_ENV
957 return code;
958# else
959 return u.u_error;
960# endif
961}
962
963#elif defined(AFS_FBSD_ENV1)
964int
965afs_pioctl(struct thread *td, void *args, int *retval)
966{
967 struct a {
968 char *path;
969 int cmd;
970 caddr_t cmarg;
971 int follow;
972 } *uap = (struct a *)args;
973
974 AFS_STATCNT(afs_pioctl)((afs_cmstats.callInfo.C_afs_pioctl)++);
975 return (afs_syscall_pioctl
976 (uap->path, uap->cmd, uap->cmarg, uap->follow, td->td_ucred));
977}
978
979#elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV1)
980int
981afs_pioctl(afs_proc_t *p, void *args, int *retval)
982{
983 struct a {
984 char *path;
985 int cmd;
986 caddr_t cmarg;
987 int follow;
988 } *uap = (struct a *)args;
989
990 AFS_STATCNT(afs_pioctl)((afs_cmstats.callInfo.C_afs_pioctl)++);
991# if defined(AFS_DARWIN80_ENV) || defined(AFS_NBSD40_ENV)
992 return (afs_syscall_pioctl
993 (uap->path, uap->cmd, uap->cmarg, uap->follow,
994 kauth_cred_get()));
995# else
996 return (afs_syscall_pioctl
997 (uap->path, uap->cmd, uap->cmarg, uap->follow,
998# if defined(AFS_FBSD_ENV1)
999 td->td_ucred));
1000# else
1001 p->p_cred->pc_ucred));
1002# endif
1003# endif
1004}
1005
1006#endif
1007
1008/* macro to avoid adding any more #ifdef's to pioctl code. */
1009#if defined(AFS_LINUX22_ENV) || defined(AFS_AIX41_ENV)
1010#define PIOCTL_FREE_CRED() crfree(credp)
1011#else
1012#define PIOCTL_FREE_CRED()
1013#endif
1014
1015int
1016#ifdef AFS_SUN5_ENV
1017afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1018 rval_t *vvp, afs_ucred_t *credp)
1019#else
1020#ifdef AFS_DARWIN100_ENV
1021afs_syscall64_pioctl(user_addr_t path, unsigned int com, user_addr_t cmarg,
1022 int follow, afs_ucred_t *credp)
1023#elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV1)
1024afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow,
1025 afs_ucred_t *credp)
1026#else
1027afs_syscall_pioctl(char *path, unsigned int com, caddr_t cmarg, int follow)
1028#endif
1029#endif
1030{
1031 struct afs_ioctl data;
1032#ifdef AFS_NEED_CLIENTCONTEXT
1033 afs_ucred_t *tmpcred = NULL((void *)0);
1034#endif
1035#if defined(AFS_NEED_CLIENTCONTEXT) || defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV1)
1036 afs_ucred_t *foreigncreds = NULL((void *)0);
1037#endif
1038 afs_int32 code = 0;
1039 struct vnode *vp = NULL((void *)0);
1040#ifdef AFS_AIX41_ENV
1041 struct ucred *credp = crref(); /* don't free until done! */
1042#endif
1043#ifdef AFS_LINUX22_ENV
1044 cred_t *credp = crref(); /* don't free until done! */
1045 struct dentry *dp;
1046#endif
1047
1048 AFS_STATCNT(afs_syscall_pioctl)((afs_cmstats.callInfo.C_afs_syscall_pioctl)++);
1049 if (follow)
1050 follow = 1; /* compat. with old venus */
1051 code = copyin_afs_ioctl(cmarg, &data);
1052 if (code) {
1053 PIOCTL_FREE_CRED();
1054#if defined(KERNEL_HAVE_UERROR)
1055 setuerror(code)u.u_error = (code);
1056#endif
1057 return (code);
1058 }
1059 if ((com & 0xff) == PSetClientContext99) {
1060#ifdef AFS_NEED_CLIENTCONTEXT
1061#if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV)
1062 code = HandleClientContext(&data, &com, &foreigncreds, credp);
1063#else
1064 code = HandleClientContext(&data, &com, &foreigncreds, osi_curcred()((__curthread())->td_ucred));
1065#endif
1066 if (code) {
1067 if (foreigncreds) {
1068 crfree(foreigncreds);
1069 }
1070 PIOCTL_FREE_CRED();
1071#if defined(KERNEL_HAVE_UERROR)
1072 return (setuerror(code)u.u_error = (code), code);
1073#else
1074 return (code);
1075#endif
1076 }
1077#else /* AFS_NEED_CLIENTCONTEXT */
1078 return EINVAL22;
1079#endif /* AFS_NEED_CLIENTCONTEXT */
1080 }
1081#ifdef AFS_NEED_CLIENTCONTEXT
1082 if (foreigncreds) {
1083 /*
1084 * We could have done without temporary setting the u.u_cred below
1085 * (foreigncreds could be passed as param the pioctl modules)
1086 * but calls such as afs_osi_suser() doesn't allow that since it
1087 * references u.u_cred directly. We could, of course, do something
1088 * like afs_osi_suser(cred) which, I think, is better since it
1089 * generalizes and supports multi cred environments...
1090 */
1091#if defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1092 tmpcred = credp;
1093 credp = foreigncreds;
1094#elif defined(AFS_AIX41_ENV)
1095 tmpcred = crref(); /* XXX */
1096 crset(foreigncreds);
1097#elif defined(AFS_HPUX101_ENV)
1098 tmpcred = p_cred(u.u_procp);
1099 set_p_cred(u.u_procp, foreigncreds);
1100#elif defined(AFS_SGI_ENV)
1101 tmpcred = OSI_GET_CURRENT_CRED();
1102 OSI_SET_CURRENT_CRED(foreigncreds);
1103#else
1104 tmpcred = u.u_cred;
1105 u.u_cred = foreigncreds;
1106#endif
1107 }
1108#endif /* AFS_NEED_CLIENTCONTEXT */
1109 if ((com & 0xff) == 15) {
1110 /* special case prefetch so entire pathname eval occurs in helper process.
1111 * otherwise, the pioctl call is essentially useless */
1112#if defined(AFS_SUN5_ENV) || defined(AFS_AIX41_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV1)
1113 code =
1114 Prefetch(path, &data, follow,
1115 foreigncreds ? foreigncreds : credp);
1116#else
1117 code = Prefetch(path, &data, follow, osi_curcred()((__curthread())->td_ucred));
1118#endif
1119 vp = NULL((void *)0);
1120#if defined(KERNEL_HAVE_UERROR)
1121 setuerror(code)u.u_error = (code);
1122#endif
1123 goto rescred;
1124 }
1125 if (path) {
1126 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 1126); } while
(0);
1127#ifdef AFS_AIX41_ENV
1128 code =
1129 lookupname(path, USR, follow, NULL((void *)0), &vp,
1130 foreigncreds ? foreigncreds : credp);
1131#else
1132#ifdef AFS_LINUX22_ENV
1133 code = gop_lookupname_userosi_lookupname(path, AFS_UIOUSERUIO_USERSPACE, follow, &dp);
1134 if (!code)
1135 vp = (struct vnode *)dp->d_inode;
1136#else
1137 code = gop_lookupname_userosi_lookupname(path, AFS_UIOUSERUIO_USERSPACE, follow, &vp);
1138#if defined(AFS_FBSD80_ENV1) /* XXX check on 7x */
1139 if (vp != NULL((void *)0))
1140 VN_HOLD(vp)vref(vp);
1141#endif /* AFS_FBSD80_ENV */
1142#endif /* AFS_LINUX22_ENV */
1143#endif /* AFS_AIX41_ENV */
1144 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1144); (void)0; } while (0);
1145 if (code) {
1146 vp = NULL((void *)0);
1147#if defined(KERNEL_HAVE_UERROR)
1148 setuerror(code)u.u_error = (code);
1149#endif
1150 goto rescred;
1151 }
1152 } else
1153 vp = NULL((void *)0);
1154
1155#if defined(AFS_SUN510_ENV)
1156 if (vp && !IsAfsVnode(vp)((vp)->v_op == &afs_vnodeops)) {
1157 struct vnode *realvp;
1158 if
1159#ifdef AFS_SUN511_ENV
1160 (VOP_REALVP(vp, &realvp, NULL((void *)0)) == 0)
1161#else
1162 (VOP_REALVP(vp, &realvp) == 0)
1163#endif
1164{
1165 struct vnode *oldvp = vp;
1166
1167 VN_HOLD(realvp)vref(realvp);
1168 vp = realvp;
1169 AFS_RELE(oldvp)do { do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)),
(0), "/home/wollman/openafs/src/afs/afs_pioctl.c", 1169); } while
(0); do { vrele(oldvp); } while(0);; do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1169); (void)0; } while (0); } while (0);
1170 }
1171 }
1172#endif
1173 /* now make the call if we were passed no file, or were passed an AFS file */
1174 if (!vp || IsAfsVnode(vp)((vp)->v_op == &afs_vnodeops)) {
1175#if defined(AFS_SUN5_ENV)
1176 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1177#elif defined(AFS_AIX41_ENV)
1178 {
1179 struct ucred *cred1, *cred2;
1180
1181 if (foreigncreds) {
1182 cred1 = cred2 = foreigncreds;
1183 } else {
1184 cred1 = cred2 = credp;
1185 }
1186 code = afs_HandlePioctl(vp, com, &data, follow, &cred1);
1187 if (cred1 != cred2) {
1188 /* something changed the creds */
1189 crset(cred1);
1190 }
1191 }
1192#elif defined(AFS_HPUX101_ENV)
1193 {
1194 struct ucred *cred = p_cred(u.u_procp);
1195 code = afs_HandlePioctl(vp, com, &data, follow, &cred);
1196 }
1197#elif defined(AFS_SGI_ENV)
1198 {
1199 struct cred *credp;
1200 credp = OSI_GET_CURRENT_CRED();
1201 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1202 }
1203#elif defined(AFS_LINUX22_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV1)
1204 code = afs_HandlePioctl(vp, com, &data, follow, &credp);
1205#elif defined(UKERNEL)
1206 code = afs_HandlePioctl(vp, com, &data, follow,
1207 &(get_user_struct()->u_cred));
1208#else
1209 code = afs_HandlePioctl(vp, com, &data, follow, &u.u_cred);
1210#endif
1211 } else {
1212#if defined(KERNEL_HAVE_UERROR)
1213 setuerror(EINVAL)u.u_error = (22);
1214#else
1215 code = EINVAL22; /* not in /afs */
1216#endif
1217 }
1218
1219 rescred:
1220#if defined(AFS_NEED_CLIENTCONTEXT)
1221 if (foreigncreds) {
1222#ifdef AFS_AIX41_ENV
1223 crset(tmpcred); /* restore original credentials */
1224#else
1225#if defined(AFS_HPUX101_ENV)
1226 set_p_cred(u.u_procp, tmpcred); /* restore original credentials */
1227#elif defined(AFS_SGI_ENV)
1228 OSI_SET_CURRENT_CRED(tmpcred); /* restore original credentials */
1229#elif defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV)
1230 credp = tmpcred; /* restore original credentials */
1231#else
1232 osi_curcred()((__curthread())->td_ucred) = tmpcred; /* restore original credentials */
1233#endif /* AFS_HPUX101_ENV */
1234 crfree(foreigncreds);
1235#endif /* AIX41 */
1236 }
1237#endif /* AFS_NEED_CLIENTCONTEXT */
1238 if (vp) {
1239#ifdef AFS_LINUX22_ENV
1240 dput(dp);
1241#else
1242#if defined(AFS_FBSD80_ENV1)
1243 if (VOP_ISLOCKED(vp))
1244 VOP_UNLOCK(vp, 0);
1245#endif /* AFS_FBSD80_ENV */
1246 AFS_RELE(vp)do { do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)),
(0), "/home/wollman/openafs/src/afs/afs_pioctl.c", 1246); } while
(0); do { vrele(vp); } while(0);; do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1246); (void)0; } while (0); } while (0); /* put vnode back */
1247#endif
1248 }
1249 PIOCTL_FREE_CRED();
1250#if defined(KERNEL_HAVE_UERROR)
1251 if (!getuerror()u.u_error)
1252 setuerror(code)u.u_error = (code);
1253 return (getuerror()u.u_error);
1254#else
1255 return (code);
1256#endif
1257}
1258
1259#ifdef AFS_DARWIN100_ENV
1260int
1261afs_syscall_pioctl(char * path, unsigned int com, caddr_t cmarg,
1262 int follow, afs_ucred_t *credp)
1263{
1264 return afs_syscall64_pioctl(CAST_USER_ADDR_T(path), com,
1265 CAST_USER_ADDR_T((unsigned int)cmarg), follow,
1266 credp);
1267}
1268#endif
1269
1270#define MAXPIOCTLTOKENLEN(3*sizeof(afs_int32)+12000 +sizeof(struct ClearToken)+64) \
1271(3*sizeof(afs_int32)+MAXKTCTICKETLEN12000+sizeof(struct ClearToken)+MAXKTCREALMLEN64)
1272
1273int
1274afs_HandlePioctl(struct vnode *avp, afs_int32 acom,
1275 struct afs_ioctl *ablob, int afollow,
1276 afs_ucred_t **acred)
1277{
1278 struct vcache *avc;
1279 struct vrequest treq;
1280 afs_int32 code;
1281 afs_int32 function, device;
1282 struct afs_pdata input, output;
1283 struct afs_pdata copyInput, copyOutput;
1284 size_t outSize;
1285 pioctlFunction *pioctlSw;
1286 int pioctlSwSize;
1287 struct afs_fakestat_state fakestate;
1288
1289 memset(&input, 0, sizeof(input));
1290 memset(&output, 0, sizeof(output));
1291
1292 avc = avp ? VTOAFS(avp)((struct vcache *)(avp)->v_data) : NULL((void *)0);
1293 afs_Trace3(afs_iclSetp, CM_TRACE_PIOCTL, ICL_TYPE_INT32, acom & 0xff,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087809L), (1<<24)+((7)
<<18)+((2)<<12)+((7)<<6), (long)(acom &
0xff), (long)(avc), (long)(afollow)) : 0)
1294 ICL_TYPE_POINTER, avc, ICL_TYPE_INT32, afollow)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087809L), (1<<24)+((7)
<<18)+((2)<<12)+((7)<<6), (long)(acom &
0xff), (long)(avc), (long)(afollow)) : 0);
1295 AFS_STATCNT(HandlePioctl)((afs_cmstats.callInfo.C_HandlePioctl)++);
1296
1297 code = afs_InitReq(&treq, *acred);
1298 if (code)
1299 return code;
1300
1301 afs_InitFakeStat(&fakestate);
1302 if (avc) {
1303 code = afs_EvalFakeStat(&avc, &fakestate, &treq);
1304 if (code)
1305 goto out;
1306 }
1307 device = (acom & 0xff00) >> 8;
1308 switch (device) {
1309 case 'V': /* Original pioctls */
1310 pioctlSw = VpioctlSw;
1311 pioctlSwSize = sizeof(VpioctlSw);
1312 break;
1313 case 'C': /* Coordinated/common pioctls */
1314 pioctlSw = CpioctlSw;
1315 pioctlSwSize = sizeof(CpioctlSw);
1316 break;
1317 case 'O': /* Coordinated/common pioctls */
1318 pioctlSw = OpioctlSw;
1319 pioctlSwSize = sizeof(OpioctlSw);
1320 break;
1321 default:
1322 code = EINVAL22;
1323 goto out;
1324 }
1325 function = acom & 0xff;
1326 if (function >= (pioctlSwSize / sizeof(char *))) {
1327 code = EINVAL22;
1328 goto out;
1329 }
1330
1331 /* Do all range checking before continuing */
1332 if (ablob->in_size > MAXPIOCTLTOKENLEN(3*sizeof(afs_int32)+12000 +sizeof(struct ClearToken)+64) ||
1333 ablob->in_size < 0 || ablob->out_size < 0) {
1334 code = EINVAL22;
1335 goto out;
1336 }
1337
1338 code = afs_pd_alloc(&input, ablob->in_size);
1339 if (code)
1340 goto out;
1341
1342 if (ablob->in_size > 0) {
1343 AFS_COPYIN(ablob->in, input.ptr, ablob->in_size, code)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1343); } while (0); code = copyin(((ablob->in)),(input.ptr
),(ablob->in_size)); if (haveGlock) do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1343); (void)0; } while (0); } while(0);
1344 input.ptr[input.remaining] = '\0';
1345 }
1346 if (code)
1347 goto out;
1348
1349 if ((function == 8 && device == 'V') ||
1350 (function == 7 && device == 'C')) { /* PGetTokens */
1351 code = afs_pd_alloc(&output, MAXPIOCTLTOKENLEN(3*sizeof(afs_int32)+12000 +sizeof(struct ClearToken)+64));
1352 } else {
1353 code = afs_pd_alloc(&output, AFS_LRALLOCSIZ4096);
1354 }
1355 if (code)
1356 goto out;
1357
1358 copyInput = input;
1359 copyOutput = output;
1360
1361 code =
1362 (*pioctlSw[function]) (avc, function, &treq, &copyInput,
1363 &copyOutput, acred);
1364
1365 outSize = copyOutput.ptr - output.ptr;
1366
1367 if (code == 0 && ablob->out_size > 0) {
1368 if (outSize > ablob->out_size) {
1369 code = E2BIG7; /* data wont fit in user buffer */
1370 } else if (outSize) {
1371 AFS_COPYOUT(output.ptr, ablob->out, outSize, code)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1371); } while (0); code = copyout((output.ptr),((ablob->
out)),(outSize)); if (haveGlock) do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1371); (void)0; } while (0); } while(0);
1372 }
1373 }
1374
1375out:
1376 afs_pd_free(&input);
1377 afs_pd_free(&output);
1378
1379 afs_PutFakeStat(&fakestate);
1380 return afs_CheckCode(code, &treq, 41);
1381}
1382
1383/*!
1384 * VIOCGETFID (22) - Get file ID quickly
1385 *
1386 * \ingroup pioctl
1387 *
1388 * \param[in] ain not in use
1389 * \param[out] aout fid of requested file
1390 *
1391 * \retval EINVAL Error if some of the initial arguments aren't set
1392 *
1393 * \post get the file id of some file
1394 */
1395DECL_PIOCTL(PGetFID)static int PGetFID(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1396{
1397 AFS_STATCNT(PGetFID)((afs_cmstats.callInfo.C_PGetFID)++);
1398 if (!avc)
1399 return EINVAL22;
1400 if (afs_pd_putBytes(aout, &avc->f.fid, sizeof(struct VenusFid)) != 0)
1401 return EINVAL22;
1402 return 0;
1403}
1404
1405/*!
1406 * VIOCSETAL (1) - Set access control list
1407 *
1408 * \ingroup pioctl
1409 *
1410 * \param[in] ain the ACL being set
1411 * \param[out] aout the ACL being set returned
1412 *
1413 * \retval EINVAL Error if some of the standard args aren't set
1414 *
1415 * \post Changed ACL, via direct writing to the wire
1416 */
1417int
1418dummy_PSetAcl(char *ain, char *aout)
1419{
1420 return 0;
1421}
1422
1423DECL_PIOCTL(PSetAcl)static int PSetAcl(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1424{
1425 afs_int32 code;
1426 struct afs_conn *tconn;
1427 struct AFSOpaque acl;
1428 struct AFSVolSync tsync;
1429 struct AFSFetchStatus OutStatus;
1430 struct rx_connection *rxconn;
1431 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
1432
1433 AFS_STATCNT(PSetAcl)((afs_cmstats.callInfo.C_PSetAcl)++);
1434 if (!avc)
1435 return EINVAL22;
1436
1437 if (afs_pd_getStringPtr(ain, &acl.AFSOpaque_val) != 0)
1438 return EINVAL22;
1439 acl.AFSOpaque_len = strlen(acl.AFSOpaque_val) + 1;
1440 if (acl.AFSOpaque_len > 1024)
1441 return EINVAL22;
1442
1443 do {
1444 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK4, &rxconn);
1445 if (tconn) {
1446 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_STOREACL)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[4]); microtime
(&opStartTime);;
1447 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 1447); } while
(0);
1448 code =
1449 RXAFS_StoreACL(rxconn, (struct AFSFid *)&avc->f.fid.Fid,
1450 &acl, &OutStatus, &tsync);
1451 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1451); (void)0; } while (0);
1452 XSTATS_END_TIMEmicrotime(&opStopTime); (opP->numOps)++; if (!code) { (
opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
1453 } else
1454 code = -1;
1455 } while (afs_Analyze
1456 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_STOREACL4,
1457 SHARED_LOCK4, NULL((void *)0)));
1458
1459 /* now we've forgotten all of the access info */
1460 ObtainWriteLock(&afs_xcbhash, 455)do { ; if (!(&afs_xcbhash)->excl_locked && !(&
afs_xcbhash)->readers_reading) (&afs_xcbhash) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xcbhash, 2); (&afs_xcbhash
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xcbhash)->src_indicator = 455; } while (0);
1461 avc->callback = 0;
1462 afs_DequeueCallback(avc);
1463 avc->f.states &= ~(CStatd0x00000001 | CUnique0x00001000);
1464 ReleaseWriteLock(&afs_xcbhash)do { ; (&afs_xcbhash)->excl_locked &= ~2; if ((&
afs_xcbhash)->wait_states) Afs_Lock_ReleaseR(&afs_xcbhash
); (&afs_xcbhash)->pid_writer=0; } while (0);
1465 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc)((avc)->v)->v_type == VDIR))
1466 osi_dnlc_purgedp(avc);
1467
1468 /* SXW - Should we flush metadata here? */
1469 return code;
1470}
1471
1472int afs_defaultAsynchrony = 0;
1473
1474/*!
1475 * VIOC_STOREBEHIND (47) Adjust store asynchrony
1476 *
1477 * \ingroup pioctl
1478 *
1479 * \param[in] ain sbstruct (store behind structure) input
1480 * \param[out] aout resulting sbstruct
1481 *
1482 * \retval EPERM
1483 * Error if the user doesn't have super-user credentials
1484 * \retval EACCES
1485 * Error if there isn't enough access to not check the mode bits
1486 *
1487 * \post
1488 * Changes either the default asynchrony (the amount of data that
1489 * can remain to be written when the cache manager returns control
1490 * to the user), or the asyncrony for the specified file.
1491 */
1492DECL_PIOCTL(PStoreBehind)static int PStoreBehind(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1493{
1494 struct sbstruct sbr;
1495
1496 if (afs_pd_getBytes(ain, &sbr, sizeof(struct sbstruct)) != 0)
1497 return EINVAL22;
1498
1499 if (sbr.sb_default != -1) {
1500 if (afs_osi_suser(*acred))
1501 afs_defaultAsynchrony = sbr.sb_default;
1502 else
1503 return EPERM1;
1504 }
1505
1506 if (avc && (sbr.sb_thisfile != -1)) {
1507 if (afs_AccessOK
1508 (avc, PRSFS_WRITE2 | PRSFS_ADMINISTER64, areq, DONT_CHECK_MODE_BITS0))
1509 avc->asynchrony = sbr.sb_thisfile;
1510 else
1511 return EACCES13;
1512 }
1513
1514 memset(&sbr, 0, sizeof(sbr));
1515 sbr.sb_default = afs_defaultAsynchrony;
1516 if (avc) {
1517 sbr.sb_thisfile = avc->asynchrony;
1518 }
1519
1520 return afs_pd_putBytes(aout, &sbr, sizeof(sbr));
1521}
1522
1523/*!
1524 * VIOC_GCPAGS (48) - Disable automatic PAG gc'ing
1525 *
1526 * \ingroup pioctl
1527 *
1528 * \param[in] ain not in use
1529 * \param[out] aout not in use
1530 *
1531 * \retval EACCES Error if the user doesn't have super-user credentials
1532 *
1533 * \post set the gcpags to GCPAGS_USERDISABLED
1534 */
1535DECL_PIOCTL(PGCPAGs)static int PGCPAGs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1536{
1537 if (!afs_osi_suser(*acred)) {
1538 return EACCES13;
1539 }
1540 afs_gcpags = AFS_GCPAGS_USERDISABLED;
1541 return 0;
1542}
1543
1544/*!
1545 * VIOCGETAL (2) - Get access control list
1546 *
1547 * \ingroup pioctl
1548 *
1549 * \param[in] ain not in use
1550 * \param[out] aout the ACL
1551 *
1552 * \retval EINVAL Error if some of the standard args aren't set
1553 * \retval ERANGE Error if the vnode of the file id is too large
1554 * \retval -1 Error if getting the ACL failed
1555 *
1556 * \post Obtain the ACL, based on file ID
1557 *
1558 * \notes
1559 * There is a hack to tell which type of ACL is being returned, checks
1560 * the top 2-bytes of the input size to judge what type of ACL it is,
1561 * only for dfs xlator ACLs
1562 */
1563DECL_PIOCTL(PGetAcl)static int PGetAcl(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1564{
1565 struct AFSOpaque acl;
1566 struct AFSVolSync tsync;
1567 struct AFSFetchStatus OutStatus;
1568 afs_int32 code;
1569 struct afs_conn *tconn;
1570 struct AFSFid Fid;
1571 struct rx_connection *rxconn;
1572 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
1573
1574 AFS_STATCNT(PGetAcl)((afs_cmstats.callInfo.C_PGetAcl)++);
1575 if (!avc)
1576 return EINVAL22;
1577 Fid.Volume = avc->f.fid.Fid.Volume;
1578 Fid.Vnode = avc->f.fid.Fid.Vnode;
1579 Fid.Unique = avc->f.fid.Fid.Unique;
1580 if (avc->f.states & CForeign0x00002000) {
1581 /*
1582 * For a dfs xlator acl we have a special hack so that the
1583 * xlator will distinguish which type of acl will return. So
1584 * we currently use the top 2-bytes (vals 0-4) to tell which
1585 * type of acl to bring back. Horrible hack but this will
1586 * cause the least number of changes to code size and interfaces.
1587 */
1588 if (Fid.Vnode & 0xc0000000)
1589 return ERANGE34;
1590 Fid.Vnode |= (ain->remaining << 30);
1591 }
1592 acl.AFSOpaque_val = aout->ptr;
1593 do {
1594 tconn = afs_Conn(&avc->f.fid, areq, SHARED_LOCK4, &rxconn);
1595 if (tconn) {
1596 acl.AFSOpaque_val[0] = '\0';
1597 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_FETCHACL)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[1]); microtime
(&opStartTime);;
1598 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 1598); } while
(0);
1599 code = RXAFS_FetchACL(rxconn, &Fid, &acl, &OutStatus, &tsync);
1600 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1600); (void)0; } while (0);
1601 XSTATS_END_TIMEmicrotime(&opStopTime); (opP->numOps)++; if (!code) { (
opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
1602 } else
1603 code = -1;
1604 } while (afs_Analyze
1605 (tconn, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_FETCHACL1,
1606 SHARED_LOCK4, NULL((void *)0)));
1607
1608 if (code == 0) {
1609 if (acl.AFSOpaque_len == 0)
1610 afs_pd_skip(aout, 1); /* leave the NULL */
1611 else
1612 afs_pd_skip(aout, acl.AFSOpaque_len); /* Length of the ACL */
1613 }
1614 return code;
1615}
1616
1617/*!
1618 * PNoop returns success. Used for functions which are not implemented
1619 * or are no longer in use.
1620 *
1621 * \ingroup pioctl
1622 *
1623 * \retval Always returns success
1624 *
1625 * \notes
1626 * Functions involved in this:
1627 * 17 (VIOCENGROUP) -- used to be enable group;
1628 * 18 (VIOCDISGROUP) -- used to be disable group;
1629 * 2 (?) -- get/set cache-bypass size threshold
1630 */
1631DECL_PIOCTL(PNoop)static int PNoop(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1632{
1633 AFS_STATCNT(PNoop)((afs_cmstats.callInfo.C_PNoop)++);
1634 return 0;
1635}
1636
1637/*!
1638 * PBogus returns fail. Used for functions which are not implemented or
1639 * are no longer in use.
1640 *
1641 * \ingroup pioctl
1642 *
1643 * \retval EINVAL Always returns this value
1644 *
1645 * \notes
1646 * Functions involved in this:
1647 * 0 (?);
1648 * 4 (?);
1649 * 6 (?);
1650 * 7 (VIOCSTAT);
1651 * 8 (?);
1652 * 13 (VIOCGETTIME) -- used to be quick check time;
1653 * 15 (VIOCPREFETCH) -- prefetch is now special-cased; see pioctl code!;
1654 * 16 (VIOCNOP) -- used to be testing code;
1655 * 19 (VIOCLISTGROUPS) -- used to be list group;
1656 * 23 (VIOCWAITFOREVER) -- used to be waitforever;
1657 * 57 (VIOC_FPRIOSTATUS) -- arla: set file prio;
1658 * 58 (VIOC_FHGET) -- arla: fallback getfh;
1659 * 59 (VIOC_FHOPEN) -- arla: fallback fhopen;
1660 * 60 (VIOC_XFSDEBUG) -- arla: controls xfsdebug;
1661 * 61 (VIOC_ARLADEBUG) -- arla: controls arla debug;
1662 * 62 (VIOC_AVIATOR) -- arla: debug interface;
1663 * 63 (VIOC_XFSDEBUG_PRINT) -- arla: print xfs status;
1664 * 64 (VIOC_CALCULATE_CACHE) -- arla: force cache check;
1665 * 65 (VIOC_BREAKCELLBACK) -- arla: break callback;
1666 * 68 (?) -- arla: fetch stats;
1667 */
1668DECL_PIOCTL(PBogus)static int PBogus(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1669{
1670 AFS_STATCNT(PBogus)((afs_cmstats.callInfo.C_PBogus)++);
1671 return EINVAL22;
1672}
1673
1674/*!
1675 * VIOC_FILE_CELL_NAME (30) - Get cell in which file lives
1676 *
1677 * \ingroup pioctl
1678 *
1679 * \param[in] ain not in use (avc used to pass in file id)
1680 * \param[out] aout cell name
1681 *
1682 * \retval EINVAL Error if some of the standard args aren't set
1683 * \retval ESRCH Error if the file isn't part of a cell
1684 *
1685 * \post Get a cell based on a passed in file id
1686 */
1687DECL_PIOCTL(PGetFileCell)static int PGetFileCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1688{
1689 struct cell *tcell;
1690
1691 AFS_STATCNT(PGetFileCell)((afs_cmstats.callInfo.C_PGetFileCell)++);
1692 if (!avc)
1693 return EINVAL22;
1694 tcell = afs_GetCell(avc->f.fid.Cell, READ_LOCK1);
1695 if (!tcell)
1696 return ESRCH3;
1697
1698 if (afs_pd_putString(aout, tcell->cellName) != 0)
1699 return EINVAL22;
1700
1701 afs_PutCell(tcell, READ_LOCK);
1702 return 0;
1703}
1704
1705/*!
1706 * VIOC_GET_WS_CELL (31) - Get cell in which workstation lives
1707 *
1708 * \ingroup pioctl
1709 *
1710 * \param[in] ain not in use
1711 * \param[out] aout cell name
1712 *
1713 * \retval EIO
1714 * Error if the afs daemon hasn't started yet
1715 * \retval ESRCH
1716 * Error if the machine isn't part of a cell, for whatever reason
1717 *
1718 * \post Get the primary cell that the machine is a part of.
1719 */
1720DECL_PIOCTL(PGetWSCell)static int PGetWSCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1721{
1722 struct cell *tcell = NULL((void *)0);
1723
1724 AFS_STATCNT(PGetWSCell)((afs_cmstats.callInfo.C_PGetWSCell)++);
1725 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1726 return EIO5; /* Inappropriate ioctl for device */
1727
1728 tcell = afs_GetPrimaryCell(READ_LOCK1);
1729 if (!tcell) /* no primary cell? */
1730 return ESRCH3;
1731
1732 if (afs_pd_putString(aout, tcell->cellName) != 0)
1733 return EINVAL22;
1734 afs_PutCell(tcell, READ_LOCK);
1735 return 0;
1736}
1737
1738/*!
1739 * VIOC_GET_PRIMARY_CELL (33) - Get primary cell for caller
1740 *
1741 * \ingroup pioctl
1742 *
1743 * \param[in] ain not in use (user id found via areq)
1744 * \param[out] aout cell name
1745 *
1746 * \retval ESRCH
1747 * Error if the user id doesn't have a primary cell specified
1748 *
1749 * \post Get the primary cell for a certain user, based on the user's uid
1750 */
1751DECL_PIOCTL(PGetUserCell)static int PGetUserCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1752{
1753 afs_int32 i;
1754 struct unixuser *tu;
1755 struct cell *tcell;
1756
1757 AFS_STATCNT(PGetUserCell)((afs_cmstats.callInfo.C_PGetUserCell)++);
1758 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
1759 return EIO5; /* Inappropriate ioctl for device */
1760
1761 /* return the cell name of the primary cell for this user */
1762 i = UHash(areq->uid)((areq->uid) & (16 -1));
1763 ObtainWriteLock(&afs_xuser, 224)do { ; if (!(&afs_xuser)->excl_locked && !(&
afs_xuser)->readers_reading) (&afs_xuser) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xuser, 2); (&afs_xuser
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xuser)->src_indicator = 224; } while (0);
1764 for (tu = afs_users[i]; tu; tu = tu->next) {
1765 if (tu->uid == areq->uid && (tu->states & UPrimary4)) {
1766 tu->refCount++;
1767 ReleaseWriteLock(&afs_xuser)do { ; (&afs_xuser)->excl_locked &= ~2; if ((&
afs_xuser)->wait_states) Afs_Lock_ReleaseR(&afs_xuser)
; (&afs_xuser)->pid_writer=0; } while (0);
1768 afs_LockUser(tu, READ_LOCK1, 0);
1769 break;
1770 }
1771 }
1772 if (tu) {
1773 tcell = afs_GetCell(tu->cell, READ_LOCK1);
1774 afs_PutUser(tu, READ_LOCK1);
1775 if (!tcell)
1776 return ESRCH3;
1777 else {
1778 if (afs_pd_putString(aout, tcell->cellName) != 0)
1779 return E2BIG7;
1780 afs_PutCell(tcell, READ_LOCK);
1781 }
1782 } else {
1783 ReleaseWriteLock(&afs_xuser)do { ; (&afs_xuser)->excl_locked &= ~2; if ((&
afs_xuser)->wait_states) Afs_Lock_ReleaseR(&afs_xuser)
; (&afs_xuser)->pid_writer=0; } while (0);
1784 }
1785 return 0;
1786}
1787
1788/* Work out which cell we're changing tokens for */
1789static_inlinestatic inline int
1790_settok_tokenCell(char *cellName, int *cellNum, int *primary) {
1791 int t1;
1792 struct cell *cell;
1793
1794 if (primary) {
1795 *primary = 0;
1796 }
1797
1798 if (cellName && strlen(cellName) > 0) {
1799 cell = afs_GetCellByName(cellName, READ_LOCK1);
1800 } else {
1801 cell = afs_GetPrimaryCell(READ_LOCK1);
1802 if (primary)
1803 *primary = 1;
1804 }
1805 if (!cell) {
1806 t1 = afs_initState;
1807 if (t1 < 101)
1808 return EIO5;
1809 else
1810 return ESRCH3;
1811 }
1812 *cellNum = cell->cellNum;
1813 afs_PutCell(cell, READ_LOCK);
1814
1815 return 0;
1816}
1817
1818
1819static_inlinestatic inline int
1820_settok_setParentPag(afs_ucred_t **cred) {
1821 afs_uint32 pag;
1822#if defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV1)
1823 char procname[256];
1824 osi_procname(procname, 256)strncpy(procname, ((__curthread())->td_proc)->p_comm, 256
);
1825 afs_warnuser("Process %d (%s) tried to change pags in PSetTokens\n",
1826 MyPidxx2Pid(MyPidxx)((((__curthread())->td_proc)->p_pid )), procname);
1827 return setpag(osi_curproc()((__curthread())), cred, -1, &pag, 1);
1828#else
1829 return setpag(cred, -1, &pag, 1);
1830#endif
1831}
1832
1833/*!
1834 * VIOCSETTOK (3) - Set authentication tokens
1835 *
1836 * \ingroup pioctl
1837 *
1838 * \param[in] ain the krb tickets from which to set the afs tokens
1839 * \param[out] aout not in use
1840 *
1841 * \retval EINVAL
1842 * Error if the ticket is either too long or too short
1843 * \retval EIO
1844 * Error if the AFS initState is below 101
1845 * \retval ESRCH
1846 * Error if the cell for which the Token is being set can't be found
1847 *
1848 * \post
1849 * Set the Tokens for a specific cell name, unless there is none set,
1850 * then default to primary
1851 *
1852 */
1853DECL_PIOCTL(PSetTokens)static int PSetTokens(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
1854{
1855 afs_int32 cellNum;
1856 afs_int32 size;
1857 afs_int32 code;
1858 struct unixuser *tu;
1859 struct ClearToken clear;
1860 char *stp;
1861 char *cellName;
1862 int stLen;
1863 struct vrequest treq;
1864 afs_int32 flag, set_parent_pag = 0;
1865
1866 AFS_STATCNT(PSetTokens)((afs_cmstats.callInfo.C_PSetTokens)++);
1867 if (!afs_resourceinit_flag) {
1868 return EIO5;
1869 }
1870
1871 if (afs_pd_getInt(ain, &stLen) != 0)
1872 return EINVAL22;
1873
1874 stp = afs_pd_where(ain); /* remember where the ticket is */
1875 if (stLen < 0 || stLen > MAXKTCTICKETLEN12000)
1876 return EINVAL22; /* malloc may fail */
1877 if (afs_pd_skip(ain, stLen) != 0)
1878 return EINVAL22;
1879
1880 if (afs_pd_getInt(ain, &size) != 0)
1881 return EINVAL22;
1882 if (size != sizeof(struct ClearToken))
1883 return EINVAL22;
1884
1885 if (afs_pd_getBytes(ain, &clear, sizeof(struct ClearToken)) !=0)
1886 return EINVAL22;
1887
1888 if (clear.AuthHandle == -1)
1889 clear.AuthHandle = 999; /* more rxvab compat stuff */
1890
1891 if (afs_pd_remaining(ain) != 0) {
1892 /* still stuff left? we've got primary flag and cell name.
1893 * Set these */
1894
1895 if (afs_pd_getInt(ain, &flag) != 0)
1896 return EINVAL22;
1897
1898 /* some versions of gcc appear to need != 0 in order to get this
1899 * right */
1900 if ((flag & 0x8000) != 0) { /* XXX Use Constant XXX */
1901 flag &= ~0x8000;
1902 set_parent_pag = 1;
1903 }
1904
1905 if (afs_pd_getStringPtr(ain, &cellName) != 0)
1906 return EINVAL22;
1907
1908 code = _settok_tokenCell(cellName, &cellNum, NULL((void *)0));
1909 if (code)
1910 return code;
1911 } else {
1912 /* default to primary cell, primary id */
1913 code = _settok_tokenCell(NULL((void *)0), &cellNum, &flag);
1914 if (code)
1915 return code;
1916 }
1917
1918 if (set_parent_pag) {
1919 if (_settok_setParentPag(acred) == 0) {
1920 afs_InitReq(&treq, *acred);
1921 areq = &treq;
1922 }
1923 }
1924
1925 /* now we just set the tokens */
1926 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK2);
1927 /* Set tokens destroys any that are already there */
1928 afs_FreeTokens(&tu->tokens);
1929 afs_AddRxkadToken(&tu->tokens, stp, stLen, &clear);
1930#ifndef AFS_NOSTATS
1931 afs_stats_cmfullperf.authent.TicketUpdates++;
1932 afs_ComputePAGStats();
1933#endif /* AFS_NOSTATS */
1934 tu->states |= UHasTokens1;
1935 tu->states &= ~UTokensBad2;
1936 afs_SetPrimary(tu, flag);
1937 tu->tokenTime = osi_Time()time_second;
1938 afs_ResetUserConns(tu);
1939 afs_NotifyUser(tu, UTokensObtained1);
1940 afs_PutUser(tu, WRITE_LOCK2);
1941
1942 return 0;
1943}
1944
1945/*!
1946 * VIOCGETVOLSTAT (4) - Get volume status
1947 *
1948 * \ingroup pioctl
1949 *
1950 * \param[in] ain not in use
1951 * \param[out] aout status of the volume
1952 *
1953 * \retval EINVAL Error if some of the standard args aren't set
1954 *
1955 * \post
1956 * The status of a volume (based on the FID of the volume), or an
1957 * offline message /motd
1958 */
1959DECL_PIOCTL(PGetVolumeStatus)static int PGetVolumeStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
1960{
1961 char volName[32];
1962 char *offLineMsg = afs_osi_Alloc(256);
1963 char *motd = afs_osi_Alloc(256);
1964 struct afs_conn *tc;
1965 afs_int32 code = 0;
1966 struct AFSFetchVolumeStatus volstat;
1967 char *Name;
1968 struct rx_connection *rxconn;
1969 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
1970
1971 osi_Assert(offLineMsg != NULL)(void)((offLineMsg != ((void *)0)) || (osi_AssertFailK( "offLineMsg != NULL"
, "/home/wollman/openafs/src/afs/afs_pioctl.c", 1971), 0));
1972 osi_Assert(motd != NULL)(void)((motd != ((void *)0)) || (osi_AssertFailK( "motd != NULL"
, "/home/wollman/openafs/src/afs/afs_pioctl.c", 1972), 0));
1973 AFS_STATCNT(PGetVolumeStatus)((afs_cmstats.callInfo.C_PGetVolumeStatus)++);
1974 if (!avc) {
1975 code = EINVAL22;
1976 goto out;
1977 }
1978 Name = volName;
1979 do {
1980 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK4, &rxconn);
1981 if (tc) {
1982 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[19]); microtime
(&opStartTime);;
1983 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 1983); } while
(0);
1984 code =
1985 RXAFS_GetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &volstat,
1986 &Name, &offLineMsg, &motd);
1987 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 1987); (void)0; } while (0);
1988 XSTATS_END_TIMEmicrotime(&opStopTime); (opP->numOps)++; if (!code) { (
opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
1989 } else
1990 code = -1;
1991 } while (afs_Analyze
1992 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_GETVOLUMESTATUS19,
1993 SHARED_LOCK4, NULL((void *)0)));
1994
1995 if (code)
1996 goto out;
1997 /* Copy all this junk into msg->im_data, keeping track of the lengths. */
1998 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
1999 return E2BIG7;
2000 if (afs_pd_putString(aout, volName) != 0)
2001 return E2BIG7;
2002 if (afs_pd_putString(aout, offLineMsg) != 0)
2003 return E2BIG7;
2004 if (afs_pd_putString(aout, motd) != 0)
2005 return E2BIG7;
2006 out:
2007 afs_osi_Free(offLineMsg, 256);
2008 afs_osi_Free(motd, 256);
2009 return code;
2010}
2011
2012/*!
2013 * VIOCSETVOLSTAT (5) - Set volume status
2014 *
2015 * \ingroup pioctl
2016 *
2017 * \param[in] ain
2018 * values to set the status at, offline message, message of the day,
2019 * volume name, minimum quota, maximum quota
2020 * \param[out] aout
2021 * status of a volume, offlines messages, minimum quota, maximumm quota
2022 *
2023 * \retval EINVAL
2024 * Error if some of the standard args aren't set
2025 * \retval EROFS
2026 * Error if the volume is read only, or a backup volume
2027 * \retval ENODEV
2028 * Error if the volume can't be accessed
2029 * \retval E2BIG
2030 * Error if the volume name, offline message, and motd are too big
2031 *
2032 * \post
2033 * Set the status of a volume, including any offline messages,
2034 * a minimum quota, and a maximum quota
2035 */
2036DECL_PIOCTL(PSetVolumeStatus)static int PSetVolumeStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
2037{
2038 char *volName;
2039 char *offLineMsg;
2040 char *motd;
2041 struct afs_conn *tc;
2042 afs_int32 code = 0;
2043 struct AFSFetchVolumeStatus volstat;
2044 struct AFSStoreVolumeStatus storeStat;
2045 struct volume *tvp;
2046 struct rx_connection *rxconn;
2047 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
2048
2049 AFS_STATCNT(PSetVolumeStatus)((afs_cmstats.callInfo.C_PSetVolumeStatus)++);
2050 if (!avc)
2051 return EINVAL22;
2052
2053 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK1);
2054 if (tvp) {
2055 if (tvp->states & (VRO1 | VBackup4)) {
2056 afs_PutVolume(tvp, READ_LOCK)((tvp)->refCount--);
2057 return EROFS30;
2058 }
2059 afs_PutVolume(tvp, READ_LOCK)((tvp)->refCount--);
2060 } else
2061 return ENODEV19;
2062
2063
2064 if (afs_pd_getBytes(ain, &volstat, sizeof(AFSFetchVolumeStatus)) != 0)
2065 return EINVAL22;
2066
2067 if (afs_pd_getStringPtr(ain, &volName) != 0)
2068 return EINVAL22;
2069 if (strlen(volName) > 32)
2070 return E2BIG7;
2071
2072 if (afs_pd_getStringPtr(ain, &offLineMsg) != 0)
2073 return EINVAL22;
2074 if (strlen(offLineMsg) > 256)
2075 return E2BIG7;
2076
2077 if (afs_pd_getStringPtr(ain, &motd) != 0)
2078 return EINVAL22;
2079 if (strlen(motd) > 256)
2080 return E2BIG7;
2081
2082 /* Done reading ... */
2083
2084 storeStat.Mask = 0;
2085 if (volstat.MinQuota != -1) {
2086 storeStat.MinQuota = volstat.MinQuota;
2087 storeStat.Mask |= AFS_SETMINQUOTA1;
2088 }
2089 if (volstat.MaxQuota != -1) {
2090 storeStat.MaxQuota = volstat.MaxQuota;
2091 storeStat.Mask |= AFS_SETMAXQUOTA2;
2092 }
2093 do {
2094 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK4, &rxconn);
2095 if (tc) {
2096 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[20]); microtime
(&opStartTime);;
2097 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 2097); } while
(0);
2098 code =
2099 RXAFS_SetVolumeStatus(rxconn, avc->f.fid.Fid.Volume, &storeStat,
2100 volName, offLineMsg, motd);
2101 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 2101); (void)0; } while (0);
2102 XSTATS_END_TIMEmicrotime(&opStopTime); (opP->numOps)++; if (!code) { (
opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
2103 } else
2104 code = -1;
2105 } while (afs_Analyze
2106 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_SETVOLUMESTATUS20,
2107 SHARED_LOCK4, NULL((void *)0)));
2108
2109 if (code)
2110 return code;
2111 /* we are sending parms back to make compat. with prev system. should
2112 * change interface later to not ask for current status, just set new
2113 * status */
2114
2115 if (afs_pd_putBytes(aout, &volstat, sizeof(VolumeStatus)) != 0)
2116 return EINVAL22;
2117 if (afs_pd_putString(aout, volName) != 0)
2118 return EINVAL22;
2119 if (afs_pd_putString(aout, offLineMsg) != 0)
2120 return EINVAL22;
2121 if (afs_pd_putString(aout, motd) != 0)
2122 return EINVAL22;
2123
2124 return code;
2125}
2126
2127/*!
2128 * VIOCFLUSH (6) - Invalidate cache entry
2129 *
2130 * \ingroup pioctl
2131 *
2132 * \param[in] ain not in use
2133 * \param[out] aout not in use
2134 *
2135 * \retval EINVAL Error if some of the standard args aren't set
2136 *
2137 * \post Flush any information the cache manager has on an entry
2138 */
2139DECL_PIOCTL(PFlush)static int PFlush(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2140{
2141 AFS_STATCNT(PFlush)((afs_cmstats.callInfo.C_PFlush)++);
2142 if (!avc)
2143 return EINVAL22;
2144#ifdef AFS_BOZONLOCK_ENV
2145 afs_BozonLock(&avc->pvnLock, avc); /* Since afs_TryToSmush will do a pvn_vptrunc */
2146#endif
2147 ObtainWriteLock(&avc->lock, 225)do { ; if (!(&avc->lock)->excl_locked && !(
&avc->lock)->readers_reading) (&avc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&avc->lock, 2);
(&avc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&avc->lock)->src_indicator = 225; }
while (0);
2148 afs_ResetVCache(avc, *acred);
2149 ReleaseWriteLock(&avc->lock)do { ; (&avc->lock)->excl_locked &= ~2; if ((&
avc->lock)->wait_states) Afs_Lock_ReleaseR(&avc->
lock); (&avc->lock)->pid_writer=0; } while (0);
2150#ifdef AFS_BOZONLOCK_ENV
2151 afs_BozonUnlock(&avc->pvnLock, avc);
2152#endif
2153 return 0;
2154}
2155
2156/*!
2157 * VIOC_AFS_STAT_MT_PT (29) - Stat mount point
2158 *
2159 * \ingroup pioctl
2160 *
2161 * \param[in] ain
2162 * the last component in a path, related to mountpoint that we're
2163 * looking for information about
2164 * \param[out] aout
2165 * volume, cell, link data
2166 *
2167 * \retval EINVAL Error if some of the standard args aren't set
2168 * \retval ENOTDIR Error if the 'mount point' argument isn't a directory
2169 * \retval EIO Error if the link data can't be accessed
2170 *
2171 * \post Get the volume, and cell, as well as the link data for a mount point
2172 */
2173DECL_PIOCTL(PNewStatMount)static int PNewStatMount(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
2174{
2175 afs_int32 code;
2176 struct vcache *tvc;
2177 struct dcache *tdc;
2178 struct VenusFid tfid;
2179 char *bufp;
2180 char *name;
2181 struct sysname_info sysState;
2182 afs_size_t offset, len;
2183
2184 AFS_STATCNT(PNewStatMount)((afs_cmstats.callInfo.C_PNewStatMount)++);
2185 if (!avc)
2186 return EINVAL22;
2187
2188 if (afs_pd_getStringPtr(ain, &name) != 0)
2189 return EINVAL22;
2190
2191 code = afs_VerifyVCache(avc, areq)(((avc)->f.states & 0x00000001) ? 0 : afs_VerifyVCache2
((avc),areq));
2192 if (code)
2193 return code;
2194 if (vType(avc)((avc)->v)->v_type != VDIR) {
2195 return ENOTDIR20;
2196 }
2197 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
2198 if (!tdc)
2199 return ENOENT2;
2200 Check_AtSys(avc, name, &sysState, areq);
2201 ObtainReadLock(&tdc->lock)do { ; if (!((&tdc->lock)->excl_locked & 2)) ((
&tdc->lock)->readers_reading)++; else Afs_Lock_Obtain
(&tdc->lock, 1); (&tdc->lock)->pid_last_reader
= (((__curthread())->td_proc)->p_pid ); } while (0);
2202 do {
2203 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
2204 } while (code == ENOENT2 && Next_AtSys(avc, areq, &sysState));
2205 ReleaseReadLock(&tdc->lock)do { ; if (!(--((&tdc->lock)->readers_reading)) &&
(&tdc->lock)->wait_states) Afs_Lock_ReleaseW(&
tdc->lock) ; if ( (&tdc->lock)->pid_last_reader ==
(((__curthread())->td_proc)->p_pid ) ) (&tdc->lock
)->pid_last_reader =0; } while (0);
2206 afs_PutDCache(tdc); /* we're done with the data */
2207 bufp = sysState.name;
2208 if (code) {
2209 goto out;
2210 }
2211 tfid.Cell = avc->f.fid.Cell;
2212 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
2213 if (!tfid.Fid.Unique && (avc->f.states & CForeign0x00002000)) {
2214 tvc = afs_LookupVCache(&tfid, areq, NULL((void *)0), avc, bufp);
2215 } else {
2216 tvc = afs_GetVCache(&tfid, areq, NULL((void *)0), NULL((void *)0));
2217 }
2218 if (!tvc) {
2219 code = ENOENT2;
2220 goto out;
2221 }
2222 if (tvc->mvstat != 1) {
2223 afs_PutVCache(tvc);
2224 code = EINVAL22;
2225 goto out;
2226 }
2227 ObtainWriteLock(&tvc->lock, 226)do { ; if (!(&tvc->lock)->excl_locked && !(
&tvc->lock)->readers_reading) (&tvc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&tvc->lock, 2);
(&tvc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&tvc->lock)->src_indicator = 226; }
while (0);
2228 code = afs_HandleLink(tvc, areq)(*(afs_cacheType->HandleLink))(tvc, areq);
2229 if (code == 0) {
2230 if (tvc->linkData) {
2231 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
2232 code = EINVAL22;
2233 else {
2234 /* we have the data */
2235 if (afs_pd_putString(aout, tvc->linkData) != 0)
2236 code = EINVAL22;
2237 }
2238 } else
2239 code = EIO5;
2240 }
2241 ReleaseWriteLock(&tvc->lock)do { ; (&tvc->lock)->excl_locked &= ~2; if ((&
tvc->lock)->wait_states) Afs_Lock_ReleaseR(&tvc->
lock); (&tvc->lock)->pid_writer=0; } while (0);
2242 afs_PutVCache(tvc);
2243 out:
2244 if (sysState.allocked)
2245 osi_FreeLargeSpace(bufp);
2246 return code;
2247}
2248
2249/*!
2250 * A helper function to get the n'th cell which a particular user has tokens
2251 * for. This is racy. If new tokens are added whilst we're iterating, then
2252 * we may return some cells twice. If tokens expire mid run, then we'll
2253 * miss some cells from our output. So, could be better, but that would
2254 * require an interface change.
2255 */
2256
2257static struct unixuser *
2258getNthCell(afs_int32 uid, afs_int32 iterator) {
2259 int i;
2260 struct unixuser *tu = NULL((void *)0);
2261
2262 i = UHash(uid)((uid) & (16 -1));
2263 ObtainReadLock(&afs_xuser)do { ; if (!((&afs_xuser)->excl_locked & 2)) ((&
afs_xuser)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xuser, 1); (&afs_xuser)->pid_last_reader = (((__curthread
())->td_proc)->p_pid ); } while (0);
2264 for (tu = afs_users[i]; tu; tu = tu->next) {
2265 if (tu->uid == uid && (tu->states & UHasTokens1)) {
2266 if (iterator-- == 0)
2267 break; /* are we done yet? */
2268 }
2269 }
2270 if (tu) {
2271 tu->refCount++;
2272 }
2273 ReleaseReadLock(&afs_xuser)do { ; if (!(--((&afs_xuser)->readers_reading)) &&
(&afs_xuser)->wait_states) Afs_Lock_ReleaseW(&afs_xuser
) ; if ( (&afs_xuser)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xuser)->pid_last_reader
=0; } while (0);
2274 if (tu) {
2275 afs_LockUser(tu, READ_LOCK1, 0);
2276 }
2277
2278
2279 return tu;
2280}
2281/*!
2282 * VIOCGETTOK (8) - Get authentication tokens
2283 *
2284 * \ingroup pioctl
2285 *
2286 * \param[in] ain cellid to return tokens for
2287 * \param[out] aout token
2288 *
2289 * \retval EIO
2290 * Error if the afs daemon hasn't started yet
2291 * \retval EDOM
2292 * Error if the input parameter is out of the bounds of the available
2293 * tokens
2294 * \retval ENOTCONN
2295 * Error if there aren't tokens for this cell
2296 *
2297 * \post
2298 * If the input paramater exists, get the token that corresponds to
2299 * the parameter value, if there is no token at this value, get the
2300 * token for the first cell
2301 *
2302 * \notes "it's a weird interface (from comments in the code)"
2303 */
2304
2305DECL_PIOCTL(PGetTokens)static int PGetTokens(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2306{
2307 struct cell *tcell;
2308 struct unixuser *tu = NULL((void *)0);
2309 union tokenUnion *token;
2310 afs_int32 iterator = 0;
2311 int newStyle;
2312 int cellNum;
2313 int code = E2BIG7;
2314
2315 AFS_STATCNT(PGetTokens)((afs_cmstats.callInfo.C_PGetTokens)++);
2316 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2317 return EIO5; /* Inappropriate ioctl for device */
2318
2319 /* weird interface. If input parameter is present, it is an integer and
2320 * we're supposed to return the parm'th tokens for this unix uid.
2321 * If not present, we just return tokens for cell 1.
2322 * If counter out of bounds, return EDOM.
2323 * If no tokens for the particular cell, return ENOTCONN.
2324 * Also, if this mysterious parm is present, we return, along with the
2325 * tokens, the primary cell indicator (an afs_int32 0) and the cell name
2326 * at the end, in that order.
2327 */
2328 newStyle = (afs_pd_remaining(ain) > 0);
2329 if (newStyle) {
2330 if (afs_pd_getInt(ain, &iterator) != 0)
2331 return EINVAL22;
2332 }
2333 if (newStyle) {
2334 tu = getNthCell(areq->uid, iterator);
2335 } else {
2336 cellNum = afs_GetPrimaryCellNum();
2337 if (cellNum)
2338 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK1);
2339 }
2340 if (!tu) {
2341 return EDOM33;
2342 }
2343 if (!(tu->states & UHasTokens1)
2344 || !afs_HasUsableTokens(tu->tokens, osi_Time()time_second)) {
2345 tu->states |= (UTokensBad2 | UNeedsReset8);
2346 afs_NotifyUser(tu, UTokensDropped2);
2347 afs_PutUser(tu, READ_LOCK1);
2348 return ENOTCONN57;
2349 }
2350 token = afs_FindToken(tu->tokens, RX_SECIDX_KAD);
2351
2352 /* If they don't have an RXKAD token, but do have other tokens,
2353 * then sadly there's nothing this interface can do to help them. */
2354 if (token == NULL((void *)0))
2355 return ENOTCONN57;
2356
2357 /* for compat, we try to return 56 byte tix if they fit */
2358 iterator = token->rxkad.ticketLen;
2359 if (iterator < 56)
2360 iterator = 56; /* # of bytes we're returning */
2361
2362 if (afs_pd_putInt(aout, iterator) != 0)
2363 goto out;
2364 if (afs_pd_putBytes(aout, token->rxkad.ticket, token->rxkad.ticketLen) != 0)
2365 goto out;
2366 if (token->rxkad.ticketLen < 56) {
2367 /* Tokens are always 56 bytes or larger */
2368 if (afs_pd_skip(aout, iterator - token->rxkad.ticketLen) != 0) {
2369 goto out;
2370 }
2371 }
2372
2373 if (afs_pd_putInt(aout, sizeof(struct ClearToken)) != 0)
2374 goto out;
2375 if (afs_pd_putBytes(aout, &token->rxkad.clearToken,
2376 sizeof(struct ClearToken)) != 0)
2377 goto out;
2378
2379 if (newStyle) {
2380 /* put out primary id and cell name, too */
2381 iterator = (tu->states & UPrimary4 ? 1 : 0);
2382 if (afs_pd_putInt(aout, iterator) != 0)
2383 goto out;
2384 tcell = afs_GetCell(tu->cell, READ_LOCK1);
2385 if (tcell) {
2386 if (afs_pd_putString(aout, tcell->cellName) != 0)
2387 goto out;
2388 afs_PutCell(tcell, READ_LOCK);
2389 } else
2390 if (afs_pd_putString(aout, "") != 0)
2391 goto out;
2392 }
2393 /* Got here, all is good */
2394 code = 0;
2395out:
2396 afs_PutUser(tu, READ_LOCK1);
2397 return code;
2398}
2399
2400/*!
2401 * VIOCUNLOG (9) - Invalidate tokens
2402 *
2403 * \ingroup pioctl
2404 *
2405 * \param[in] ain not in use
2406 * \param[out] aout not in use
2407 *
2408 * \retval EIO Error if the afs daemon hasn't been started yet
2409 *
2410 * \post remove tokens from a user, specified by the user id
2411 *
2412 * \notes sets the token's time to 0, which then causes it to be removed
2413 * \notes Unlog is the same as un-pag in OpenAFS
2414 */
2415DECL_PIOCTL(PUnlog)static int PUnlog(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2416{
2417 afs_int32 i;
2418 struct unixuser *tu;
2419
2420 AFS_STATCNT(PUnlog)((afs_cmstats.callInfo.C_PUnlog)++);
2421 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2422 return EIO5; /* Inappropriate ioctl for device */
2423
2424 i = UHash(areq->uid)((areq->uid) & (16 -1));
2425 ObtainWriteLock(&afs_xuser, 227)do { ; if (!(&afs_xuser)->excl_locked && !(&
afs_xuser)->readers_reading) (&afs_xuser) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xuser, 2); (&afs_xuser
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xuser)->src_indicator = 227; } while (0);
2426 for (tu = afs_users[i]; tu; tu = tu->next) {
2427 if (tu->uid == areq->uid) {
2428 tu->refCount++;
2429 ReleaseWriteLock(&afs_xuser)do { ; (&afs_xuser)->excl_locked &= ~2; if ((&
afs_xuser)->wait_states) Afs_Lock_ReleaseR(&afs_xuser)
; (&afs_xuser)->pid_writer=0; } while (0);
2430
2431 afs_LockUser(tu, WRITE_LOCK2, 366);
2432
2433 tu->states &= ~UHasTokens1;
2434 afs_FreeTokens(&tu->tokens);
2435 afs_NotifyUser(tu, UTokensDropped2);
2436 /* We have to drop the lock over the call to afs_ResetUserConns,
2437 * since it obtains the afs_xvcache lock. We could also keep
2438 * the lock, and modify ResetUserConns to take parm saying we
2439 * obtained the lock already, but that is overkill. By keeping
2440 * the "tu" pointer held over the released lock, we guarantee
2441 * that we won't lose our place, and that we'll pass over
2442 * every user conn that existed when we began this call.
2443 */
2444 afs_ResetUserConns(tu);
2445 afs_PutUser(tu, WRITE_LOCK2);
2446 ObtainWriteLock(&afs_xuser, 228)do { ; if (!(&afs_xuser)->excl_locked && !(&
afs_xuser)->readers_reading) (&afs_xuser) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xuser, 2); (&afs_xuser
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xuser)->src_indicator = 228; } while (0);
2447#ifdef UKERNEL
2448 /* set the expire times to 0, causes
2449 * afs_GCUserData to remove this entry
2450 */
2451 tu->tokenTime = 0;
2452#endif /* UKERNEL */
2453 }
2454 }
2455 ReleaseWriteLock(&afs_xuser)do { ; (&afs_xuser)->excl_locked &= ~2; if ((&
afs_xuser)->wait_states) Afs_Lock_ReleaseR(&afs_xuser)
; (&afs_xuser)->pid_writer=0; } while (0);
2456 return 0;
2457}
2458
2459/*!
2460 * VIOC_AFS_MARINER_HOST (32) - Get/set mariner (cache manager monitor) host
2461 *
2462 * \ingroup pioctl
2463 *
2464 * \param[in] ain host address to be set
2465 * \param[out] aout old host address
2466 *
2467 * \post
2468 * depending on whether or not a variable is set, either get the host
2469 * for the cache manager monitor, or set the old address and give it
2470 * a new address
2471 *
2472 * \notes Errors turn off mariner
2473 */
2474DECL_PIOCTL(PMariner)static int PMariner(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2475{
2476 afs_int32 newHostAddr;
2477 afs_int32 oldHostAddr;
2478
2479 AFS_STATCNT(PMariner)((afs_cmstats.callInfo.C_PMariner)++);
2480 if (afs_mariner)
2481 memcpy((char *)&oldHostAddr, (char *)&afs_marinerHost,
2482 sizeof(afs_int32));
2483 else
2484 oldHostAddr = 0xffffffff; /* disabled */
2485
2486 if (afs_pd_getInt(ain, &newHostAddr) != 0)
2487 return EINVAL22;
2488
2489 if (newHostAddr == 0xffffffff) {
2490 /* disable mariner operations */
2491 afs_mariner = 0;
2492 } else if (newHostAddr) {
2493 afs_mariner = 1;
2494 afs_marinerHost = newHostAddr;
2495 }
2496
2497 if (afs_pd_putInt(aout, oldHostAddr) != 0)
2498 return E2BIG7;
2499
2500 return 0;
2501}
2502
2503/*!
2504 * VIOCCKSERV (10) - Check that servers are up
2505 *
2506 * \ingroup pioctl
2507 *
2508 * \param[in] ain name of the cell
2509 * \param[out] aout current down server list
2510 *
2511 * \retval EIO Error if the afs daemon hasn't started yet
2512 * \retval EACCES Error if the user doesn't have super-user credentials
2513 * \retval ENOENT Error if we are unable to obtain the cell
2514 *
2515 * \post
2516 * Either a fast check (where it doesn't contact servers) or a
2517 * local check (checks local cell only)
2518 */
2519DECL_PIOCTL(PCheckServers)static int PCheckServers(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
2520{
2521 int i;
2522 struct server *ts;
2523 afs_int32 temp;
2524 char *cellName = NULL((void *)0);
2525 struct cell *cellp;
2526 struct chservinfo *pcheck;
2527
2528 AFS_STATCNT(PCheckServers)((afs_cmstats.callInfo.C_PCheckServers)++);
2529
2530 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2531 return EIO5; /* Inappropriate ioctl for device */
2532
2533 /* This is tricky, because we need to peak at the datastream to see
2534 * what we're getting. For now, let's cheat. */
2535
2536 /* ain contains either an int32 or a string */
2537 if (ain->remaining == 0)
2538 return EINVAL22;
2539
2540 if (*(afs_int32 *)ain->ptr == 0x12345678) { /* For afs3.3 version */
2541 pcheck = afs_pd_inline(ain, sizeof(*pcheck));
2542 if (pcheck == NULL((void *)0))
2543 return EINVAL22;
2544
2545 if (pcheck->tinterval >= 0) {
2546 if (afs_pd_putInt(aout, afs_probe_interval) != 0)
2547 return E2BIG7;
2548 if (pcheck->tinterval > 0) {
2549 if (!afs_osi_suser(*acred))
2550 return EACCES13;
2551 afs_probe_interval = pcheck->tinterval;
2552 }
2553 return 0;
2554 }
2555 temp = pcheck->tflags;
2556 if (pcheck->tsize)
2557 cellName = pcheck->tbuffer;
2558 } else { /* For pre afs3.3 versions */
2559 if (afs_pd_getInt(ain, &temp) != 0)
2560 return EINVAL22;
2561 if (afs_pd_remaining(ain) > 0) {
2562 if (afs_pd_getStringPtr(ain, &cellName) != 0)
2563 return EINVAL22;
2564 }
2565 }
2566
2567 /*
2568 * 1: fast check, don't contact servers.
2569 * 2: local cell only.
2570 */
2571 if (cellName) {
2572 /* have cell name, too */
2573 cellp = afs_GetCellByName(cellName, READ_LOCK1);
2574 if (!cellp)
2575 return ENOENT2;
2576 } else
2577 cellp = NULL((void *)0);
2578 if (!cellp && (temp & 2)) {
2579 /* use local cell */
2580 cellp = afs_GetPrimaryCell(READ_LOCK1);
2581 }
2582 if (!(temp & 1)) { /* if not fast, call server checker routine */
2583 afs_CheckServers(1, cellp); /* check down servers */
2584 afs_CheckServers(0, cellp); /* check up servers */
2585 }
2586 /* now return the current down server list */
2587 ObtainReadLock(&afs_xserver)do { ; if (!((&afs_xserver)->excl_locked & 2)) ((&
afs_xserver)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xserver, 1); (&afs_xserver)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
2588 for (i = 0; i < NSERVERS16; i++) {
2589 for (ts = afs_servers[i]; ts; ts = ts->next) {
2590 if (cellp && ts->cell != cellp)
2591 continue; /* cell spec'd and wrong */
2592 if ((ts->flags & SRVR_ISDOWN0x20)
2593 && ts->addr->sa_portal != ts->cell->vlport) {
2594 afs_pd_putInt(aout, ts->addr->sa_ip);
2595 }
2596 }
2597 }
2598 ReleaseReadLock(&afs_xserver)do { ; if (!(--((&afs_xserver)->readers_reading)) &&
(&afs_xserver)->wait_states) Afs_Lock_ReleaseW(&afs_xserver
) ; if ( (&afs_xserver)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xserver)->pid_last_reader
=0; } while (0);
2599 if (cellp)
2600 afs_PutCell(cellp, READ_LOCK);
2601 return 0;
2602}
2603
2604/*!
2605 * VIOCCKBACK (11) - Check backup volume mappings
2606 *
2607 * \ingroup pioctl
2608 *
2609 * \param[in] ain not in use
2610 * \param[out] aout not in use
2611 *
2612 * \retval EIO Error if the afs daemon hasn't started yet
2613 *
2614 * \post
2615 * Check the root volume, and then check the names if the volume
2616 * check variable is set to force, has expired, is busy, or if
2617 * the mount points variable is set
2618 */
2619DECL_PIOCTL(PCheckVolNames)static int PCheckVolNames(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
2620{
2621 AFS_STATCNT(PCheckVolNames)((afs_cmstats.callInfo.C_PCheckVolNames)++);
2622 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2623 return EIO5; /* Inappropriate ioctl for device */
2624
2625 afs_CheckRootVolume();
2626 afs_CheckVolumeNames(AFS_VOLCHECK_FORCE0x8 | AFS_VOLCHECK_EXPIRED0x1 |
2627 AFS_VOLCHECK_BUSY0x2 | AFS_VOLCHECK_MTPTS0x4);
2628 return 0;
2629}
2630
2631/*!
2632 * VIOCCKCONN (12) - Check connections for a user
2633 *
2634 * \ingroup pioctl
2635 *
2636 * \param[in] ain not in use
2637 * \param[out] aout not in use
2638 *
2639 * \retval EACCESS
2640 * Error if no user is specififed, the user has no tokens set,
2641 * or if the user's tokens are bad
2642 *
2643 * \post
2644 * check to see if a user has the correct authentication.
2645 * If so, allow access.
2646 *
2647 * \notes Check the connections to all the servers specified
2648 */
2649DECL_PIOCTL(PCheckAuth)static int PCheckAuth(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2650{
2651 int i;
2652 struct srvAddr *sa;
2653 struct sa_conn_vector *tcv;
2654 struct unixuser *tu;
2655 afs_int32 retValue;
2656
2657 AFS_STATCNT(PCheckAuth)((afs_cmstats.callInfo.C_PCheckAuth)++);
2658 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
2659 return EIO5; /* Inappropriate ioctl for device */
2660
2661 retValue = 0;
2662 tu = afs_GetUser(areq->uid, 1, READ_LOCK1); /* check local cell authentication */
2663 if (!tu)
2664 retValue = EACCES13;
2665 else {
2666 /* we have a user */
2667 ObtainReadLock(&afs_xsrvAddr)do { ; if (!((&afs_xsrvAddr)->excl_locked & 2)) ((
&afs_xsrvAddr)->readers_reading)++; else Afs_Lock_Obtain
(&afs_xsrvAddr, 1); (&afs_xsrvAddr)->pid_last_reader
= (((__curthread())->td_proc)->p_pid ); } while (0);
2668 ObtainReadLock(&afs_xconn)do { ; if (!((&afs_xconn)->excl_locked & 2)) ((&
afs_xconn)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xconn, 1); (&afs_xconn)->pid_last_reader = (((__curthread
())->td_proc)->p_pid ); } while (0);
2669
2670 /* any tokens set? */
2671 if ((tu->states & UHasTokens1) == 0)
2672 retValue = EACCES13;
2673 /* all connections in cell 1 working? */
2674 for (i = 0; i < NSERVERS16; i++) {
2675 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
2676 for (tcv = sa->conns; tcv; tcv = tcv->next) {
2677 if (tcv->user == tu && (tu->states & UTokensBad2))
2678 retValue = EACCES13;
2679 }
2680 }
2681 }
2682 ReleaseReadLock(&afs_xsrvAddr)do { ; if (!(--((&afs_xsrvAddr)->readers_reading)) &&
(&afs_xsrvAddr)->wait_states) Afs_Lock_ReleaseW(&
afs_xsrvAddr) ; if ( (&afs_xsrvAddr)->pid_last_reader ==
(((__curthread())->td_proc)->p_pid ) ) (&afs_xsrvAddr
)->pid_last_reader =0; } while (0);
2683 ReleaseReadLock(&afs_xconn)do { ; if (!(--((&afs_xconn)->readers_reading)) &&
(&afs_xconn)->wait_states) Afs_Lock_ReleaseW(&afs_xconn
) ; if ( (&afs_xconn)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xconn)->pid_last_reader
=0; } while (0);
2684 afs_PutUser(tu, READ_LOCK1);
2685 }
2686 if (afs_pd_putInt(aout, retValue) != 0)
2687 return E2BIG7;
2688 return 0;
2689}
2690
2691static int
2692Prefetch(uparmtype apath, struct afs_ioctl *adata, int afollow,
2693 afs_ucred_t *acred)
2694{
2695 char *tp;
2696 afs_int32 code;
2697#if defined(AFS_SGI61_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV1)
2698 size_t bufferSize;
2699#else
2700 u_int bufferSize;
2701#endif
2702
2703 AFS_STATCNT(Prefetch)((afs_cmstats.callInfo.C_Prefetch)++);
2704 if (!apath)
2705 return EINVAL22;
2706 tp = osi_AllocLargeSpace(1024);
2707 AFS_COPYINSTR(apath, tp, 1024, &bufferSize, code)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 2707); } while (0); code = copyinstr(((apath)),(tp),(1024),
(&bufferSize)); if (haveGlock) do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 2707); (void)0; } while (0); } while(0);
2708 if (code) {
2709 osi_FreeLargeSpace(tp);
2710 return code;
2711 }
2712 if (afs_BBusy()) { /* do this as late as possible */
2713 osi_FreeLargeSpace(tp);
2714 return EWOULDBLOCK35; /* pretty close */
2715 }
2716 afs_BQueue(BOP_PATH3, (struct vcache *)0, 0, 0, acred, (afs_size_t) 0,
2717 (afs_size_t) 0, tp, (void *)0, (void *)0);
2718 return 0;
2719}
2720
2721/*!
2722 * VIOCWHEREIS (14) - Find out where a volume is located
2723 *
2724 * \ingroup pioctl
2725 *
2726 * \param[in] ain not in use
2727 * \param[out] aout volume location
2728 *
2729 * \retval EINVAL Error if some of the default arguments don't exist
2730 * \retval ENODEV Error if there is no such volume
2731 *
2732 * \post fine a volume, based on a volume file id
2733 *
2734 * \notes check each of the servers specified
2735 */
2736DECL_PIOCTL(PFindVolume)static int PFindVolume(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2737{
2738 struct volume *tvp;
2739 struct server *ts;
2740 afs_int32 i;
2741 int code = 0;
2742
2743 AFS_STATCNT(PFindVolume)((afs_cmstats.callInfo.C_PFindVolume)++);
2744 if (!avc)
2745 return EINVAL22;
2746 tvp = afs_GetVolume(&avc->f.fid, areq, READ_LOCK1);
2747 if (!tvp)
2748 return ENODEV19;
2749
2750 for (i = 0; i < AFS_MAXHOSTS13; i++) {
2751 ts = tvp->serverHost[i];
2752 if (!ts)
2753 break;
2754 if (afs_pd_putInt(aout, ts->addr->sa_ip) != 0) {
2755 code = E2BIG7;
2756 goto out;
2757 }
2758 }
2759 if (i < AFS_MAXHOSTS13) {
2760 /* still room for terminating NULL, add it on */
2761 if (afs_pd_putInt(aout, 0) != 0) {
2762 code = E2BIG7;
2763 goto out;
2764 }
2765 }
2766out:
2767 afs_PutVolume(tvp, READ_LOCK)((tvp)->refCount--);
2768 return code;
2769}
2770
2771/*!
2772 * VIOCACCESS (20) - Access using PRS_FS bits
2773 *
2774 * \ingroup pioctl
2775 *
2776 * \param[in] ain PRS_FS bits
2777 * \param[out] aout not in use
2778 *
2779 * \retval EINVAL Error if some of the initial arguments aren't set
2780 * \retval EACCES Error if access is denied
2781 *
2782 * \post check to make sure access is allowed
2783 */
2784DECL_PIOCTL(PViceAccess)static int PViceAccess(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2785{
2786 afs_int32 code;
2787 afs_int32 temp;
2788
2789 AFS_STATCNT(PViceAccess)((afs_cmstats.callInfo.C_PViceAccess)++);
2790 if (!avc)
2791 return EINVAL22;
2792
2793 code = afs_VerifyVCache(avc, areq)(((avc)->f.states & 0x00000001) ? 0 : afs_VerifyVCache2
((avc),areq));
2794 if (code)
2795 return code;
2796
2797 if (afs_pd_getInt(ain, &temp) != 0)
2798 return EINVAL22;
2799
2800 code = afs_AccessOK(avc, temp, areq, CHECK_MODE_BITS1);
2801 if (code)
2802 return 0;
2803 else
2804 return EACCES13;
2805}
2806
2807/*!
2808 * VIOC_GETPAG (13) - Get PAG value
2809 *
2810 * \ingroup pioctl
2811 *
2812 * \param[in] ain not in use
2813 * \param[out] aout PAG value or NOPAG
2814 *
2815 * \post get PAG value for the caller's cred
2816 */
2817DECL_PIOCTL(PGetPAG)static int PGetPAG(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2818{
2819 afs_int32 pag;
2820
2821 pag = PagInCred(*acred);
2822
2823 return afs_pd_putInt(aout, pag);
2824}
2825
2826DECL_PIOCTL(PPrecache)static int PPrecache(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
2827{
2828 afs_int32 newValue;
2829
2830 /*AFS_STATCNT(PPrecache);*/
2831 if (!afs_osi_suser(*acred))
2832 return EACCES13;
2833
2834 if (afs_pd_getInt(ain, &newValue) != 0)
2835 return EINVAL22;
2836
2837 afs_preCache = newValue*1024;
2838 return 0;
2839}
2840
2841/*!
2842 * VIOCSETCACHESIZE (24) - Set venus cache size in 1000 units
2843 *
2844 * \ingroup pioctl
2845 *
2846 * \param[in] ain the size the venus cache should be set to
2847 * \param[out] aout not in use
2848 *
2849 * \retval EACCES Error if the user doesn't have super-user credentials
2850 * \retval EROFS Error if the cache is set to be in memory
2851 *
2852 * \post
2853 * Set the cache size based on user input. If no size is given,
2854 * set it to the default OpenAFS cache size.
2855 *
2856 * \notes
2857 * recompute the general cache parameters for every single block allocated
2858 */
2859DECL_PIOCTL(PSetCacheSize)static int PSetCacheSize(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
2860{
2861 afs_int32 newValue;
2862 int waitcnt = 0;
2863
2864 AFS_STATCNT(PSetCacheSize)((afs_cmstats.callInfo.C_PSetCacheSize)++);
2865
2866 if (!afs_osi_suser(*acred))
2867 return EACCES13;
2868 /* too many things are setup initially in mem cache version */
2869 if (cacheDiskType == AFS_FCACHE_TYPE_MEM0x1)
2870 return EROFS30;
2871 if (afs_pd_getInt(ain, &newValue) != 0)
2872 return EINVAL22;
2873 if (newValue == 0)
2874 afs_cacheBlocks = afs_stats_cmperf.cacheBlocksOrig;
2875 else {
2876 if (newValue < afs_min_cache)
2877 afs_cacheBlocks = afs_min_cache;
2878 else
2879 afs_cacheBlocks = newValue;
2880 }
2881 afs_stats_cmperf.cacheBlocksTotal = afs_cacheBlocks;
2882 afs_ComputeCacheParms(); /* recompute basic cache parameters */
2883 afs_MaybeWakeupTruncateDaemon();
2884 while (waitcnt++ < 100 && afs_cacheBlocks < afs_blocksUsed) {
2885 afs_osi_Wait(1000, 0, 0);
2886 afs_MaybeWakeupTruncateDaemon();
2887 }
2888 return 0;
2889}
2890
2891#define MAXGCSTATS16 16
2892/*!
2893 * VIOCGETCACHEPARMS (40) - Get cache stats
2894 *
2895 * \ingroup pioctl
2896 *
2897 * \param[in] ain afs index flags
2898 * \param[out] aout cache blocks, blocks used, blocks files (in an array)
2899 *
2900 * \post Get the cache blocks, and how many of the cache blocks there are
2901 */
2902DECL_PIOCTL(PGetCacheSize)static int PGetCacheSize(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
2903{
2904 afs_int32 results[MAXGCSTATS16];
2905 afs_int32 flags;
2906 struct dcache * tdc;
2907 int i, size;
2908
2909 AFS_STATCNT(PGetCacheSize)((afs_cmstats.callInfo.C_PGetCacheSize)++);
2910
2911 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
2912 afs_pd_getInt(ain, &flags); /* can't error, we just checked size */
2913 } else if (afs_pd_remaining(ain) == 0) {
2914 flags = 0;
2915 } else {
2916 return EINVAL22;
2917 }
2918
2919 memset(results, 0, sizeof(results));
2920 results[0] = afs_cacheBlocks;
2921 results[1] = afs_blocksUsed;
2922 results[2] = afs_cacheFiles;
2923
2924 if (1 == flags){
2925 for (i = 0; i < afs_cacheFiles; i++) {
2926 if (afs_indexFlags[i] & IFFree2) results[3]++;
2927 }
2928 } else if (2 == flags){
2929 for (i = 0; i < afs_cacheFiles; i++) {
2930 if (afs_indexFlags[i] & IFFree2) results[3]++;
2931 if (afs_indexFlags[i] & IFEverUsed1) results[4]++;
2932 if (afs_indexFlags[i] & IFDataMod4) results[5]++;
2933 if (afs_indexFlags[i] & IFDirtyPages16) results[6]++;
2934 if (afs_indexFlags[i] & IFAnyPages32) results[7]++;
2935 if (afs_indexFlags[i] & IFDiscarded64) results[8]++;
2936
2937 tdc = afs_indexTable[i];
2938 if (tdc){
2939 results[9]++;
2940 size = tdc->validPos;
2941 if ( 0 < size && size < (1<<12) ) results[10]++;
2942 else if (size < (1<<14) ) results[11]++;
2943 else if (size < (1<<16) ) results[12]++;
2944 else if (size < (1<<18) ) results[13]++;
2945 else if (size < (1<<20) ) results[14]++;
2946 else if (size >= (1<<20) ) results[15]++;
2947 }
2948 }
2949 }
2950 return afs_pd_putBytes(aout, results, sizeof(results));
2951}
2952
2953/*!
2954 * VIOCFLUSHCB (25) - Flush callback only
2955 *
2956 * \ingroup pioctl
2957 *
2958 * \param[in] ain not in use
2959 * \param[out] aout not in use
2960 *
2961 * \retval EINVAL Error if some of the standard args aren't set
2962 * \retval 0 0 returned if the volume is set to read-only
2963 *
2964 * \post
2965 * Flushes callbacks, by setting the length of callbacks to one,
2966 * setting the next callback to be sent to the CB_DROPPED value,
2967 * and then dequeues everything else.
2968 */
2969DECL_PIOCTL(PRemoveCallBack)static int PRemoveCallBack(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
2970{
2971 struct afs_conn *tc;
2972 afs_int32 code = 0;
2973 struct AFSCallBack CallBacks_Array[1];
2974 struct AFSCBFids theFids;
2975 struct AFSCBs theCBs;
2976 struct rx_connection *rxconn;
2977 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
2978
2979 AFS_STATCNT(PRemoveCallBack)((afs_cmstats.callInfo.C_PRemoveCallBack)++);
2980 if (!avc)
2981 return EINVAL22;
2982 if (avc->f.states & CRO0x00000004)
2983 return 0; /* read-only-ness can't change */
2984 ObtainWriteLock(&avc->lock, 229)do { ; if (!(&avc->lock)->excl_locked && !(
&avc->lock)->readers_reading) (&avc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&avc->lock, 2);
(&avc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&avc->lock)->src_indicator = 229; }
while (0);
2985 theFids.AFSCBFids_len = 1;
2986 theCBs.AFSCBs_len = 1;
2987 theFids.AFSCBFids_val = (struct AFSFid *)&avc->f.fid.Fid;
2988 theCBs.AFSCBs_val = CallBacks_Array;
2989 CallBacks_Array[0].CallBackType = CB_DROPPED3;
2990 if (avc->callback) {
2991 do {
2992 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK4, &rxconn);
2993 if (tc) {
2994 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[17]); microtime
(&opStartTime);;
2995 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 2995); } while
(0);
2996 code = RXAFS_GiveUpCallBacks(rxconn, &theFids, &theCBs);
2997 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 2997); (void)0; } while (0);
2998 XSTATS_END_TIMEmicrotime(&opStopTime); (opP->numOps)++; if (!code) { (
opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
2999 }
3000 /* don't set code on failure since we wouldn't use it */
3001 } while (afs_Analyze
3002 (tc, rxconn, code, &avc->f.fid, areq,
3003 AFS_STATS_FS_RPCIDX_GIVEUPCALLBACKS17, SHARED_LOCK4, NULL((void *)0)));
3004
3005 ObtainWriteLock(&afs_xcbhash, 457)do { ; if (!(&afs_xcbhash)->excl_locked && !(&
afs_xcbhash)->readers_reading) (&afs_xcbhash) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xcbhash, 2); (&afs_xcbhash
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xcbhash)->src_indicator = 457; } while (0);
3006 afs_DequeueCallback(avc);
3007 avc->callback = 0;
3008 avc->f.states &= ~(CStatd0x00000001 | CUnique0x00001000);
3009 ReleaseWriteLock(&afs_xcbhash)do { ; (&afs_xcbhash)->excl_locked &= ~2; if ((&
afs_xcbhash)->wait_states) Afs_Lock_ReleaseR(&afs_xcbhash
); (&afs_xcbhash)->pid_writer=0; } while (0);
3010 if (avc->f.fid.Fid.Vnode & 1 || (vType(avc)((avc)->v)->v_type == VDIR))
3011 osi_dnlc_purgedp(avc);
3012 }
3013 ReleaseWriteLock(&avc->lock)do { ; (&avc->lock)->excl_locked &= ~2; if ((&
avc->lock)->wait_states) Afs_Lock_ReleaseR(&avc->
lock); (&avc->lock)->pid_writer=0; } while (0);
3014 return 0;
3015}
3016
3017/*!
3018 * VIOCNEWCELL (26) - Configure new cell
3019 *
3020 * \ingroup pioctl
3021 *
3022 * \param[in] ain
3023 * the name of the cell, the hosts that will be a part of the cell,
3024 * whether or not it's linked with another cell, the other cell it's
3025 * linked with, the file server port, and the volume server port
3026 * \param[out] aout
3027 * not in use
3028 *
3029 * \retval EIO Error if the afs daemon hasn't started yet
3030 * \retval EACCES Error if the user doesn't have super-user cedentials
3031 * \retval EINVAL Error if some 'magic' var doesn't have a certain bit set
3032 *
3033 * \post creates a new cell
3034 */
3035DECL_PIOCTL(PNewCell)static int PNewCell(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
3036{
3037 afs_int32 cellHosts[AFS_MAXCELLHOSTS8], magic = 0;
3038 char *newcell = NULL((void *)0);
3039 char *linkedcell = NULL((void *)0);
3040 afs_int32 code, ls;
3041 afs_int32 linkedstate = 0;
3042 afs_int32 fsport = 0, vlport = 0;
3043 int skip;
3044
3045 AFS_STATCNT(PNewCell)((afs_cmstats.callInfo.C_PNewCell)++);
3046 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3047 return EIO5; /* Inappropriate ioctl for device */
3048
3049 if (!afs_osi_suser(*acred))
3050 return EACCES13;
3051
3052 if (afs_pd_getInt(ain, &magic) != 0)
3053 return EINVAL22;
3054 if (magic != 0x12345678)
3055 return EINVAL22;
3056
3057 /* A 3.4 fs newcell command will pass an array of AFS_MAXCELLHOSTS
3058 * server addresses while the 3.5 fs newcell command passes
3059 * AFS_MAXHOSTS. To figure out which is which, check if the cellname
3060 * is good.
3061 *
3062 * This whole logic is bogus, because it relies on the newer command
3063 * sending its 12th address as 0.
3064 */
3065 if ((afs_pd_remaining(ain) < AFS_MAXCELLHOSTS8 +3) * sizeof(afs_int32))
3066 return EINVAL22;
3067
3068 newcell = afs_pd_where(ain) + (AFS_MAXCELLHOSTS8 + 3) * sizeof(afs_int32);
3069 if (newcell[0] != '\0') {
3070 skip = 0;
3071 } else {
3072 skip = AFS_MAXHOSTS13 - AFS_MAXCELLHOSTS8;
3073 }
3074
3075 /* AFS_MAXCELLHOSTS (=8) is less than AFS_MAXHOSTS (=13) */
3076 if (afs_pd_getBytes(ain, &cellHosts,
3077 AFS_MAXCELLHOSTS8 * sizeof(afs_int32)) != 0)
3078 return EINVAL22;
3079 if (afs_pd_skip(ain, skip * sizeof(afs_int32)) !=0)
3080 return EINVAL22;
3081
3082 if (afs_pd_getInt(ain, &fsport) != 0)
3083 return EINVAL22;
3084 if (fsport < 1024)
3085 fsport = 0; /* Privileged ports not allowed */
3086
3087 if (afs_pd_getInt(ain, &vlport) != 0)
3088 return EINVAL22;
3089 if (vlport < 1024)
3090 vlport = 0; /* Privileged ports not allowed */
3091
3092 if (afs_pd_getInt(ain, &ls) != 0)
3093 return EINVAL22;
3094
3095 if (afs_pd_getStringPtr(ain, &newcell) != 0)
3096 return EINVAL22;
3097
3098 if (ls & 1) {
3099 if (afs_pd_getStringPtr(ain, &linkedcell) != 0)
3100 return EINVAL22;
3101 linkedstate |= CLinkedCell0x20;
3102 }
3103
3104 linkedstate |= CNoSUID0x02; /* setuid is disabled by default for fs newcell */
3105 code =
3106 afs_NewCell(newcell, cellHosts, linkedstate, linkedcell, fsport,
3107 vlport, (int)0);
3108 return code;
3109}
3110
3111DECL_PIOCTL(PNewAlias)static int PNewAlias(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
3112{
3113 /* create a new cell alias */
3114 char *realName, *aliasName;
3115
3116 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3117 return EIO5; /* Inappropriate ioctl for device */
3118
3119 if (!afs_osi_suser(*acred))
3120 return EACCES13;
3121
3122 if (afs_pd_getStringPtr(ain, &aliasName) != 0)
3123 return EINVAL22;
3124 if (afs_pd_getStringPtr(ain, &realName) != 0)
3125 return EINVAL22;
3126
3127 return afs_NewCellAlias(aliasName, realName);
3128}
3129
3130/*!
3131 * VIOCGETCELL (27) - Get cell info
3132 *
3133 * \ingroup pioctl
3134 *
3135 * \param[in] ain The cell index of a specific cell
3136 * \param[out] aout list of servers in the cell
3137 *
3138 * \retval EIO Error if the afs daemon hasn't started yet
3139 * \retval EDOM Error if there is no cell asked about
3140 *
3141 * \post Lists the cell's server names and and addresses
3142 */
3143DECL_PIOCTL(PListCells)static int PListCells(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
3144{
3145 afs_int32 whichCell;
3146 struct cell *tcell = 0;
3147 afs_int32 i;
3148 int code;
3149
3150 AFS_STATCNT(PListCells)((afs_cmstats.callInfo.C_PListCells)++);
3151 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3152 return EIO5; /* Inappropriate ioctl for device */
3153
3154 if (afs_pd_getInt(ain, &whichCell) != 0)
3155 return EINVAL22;
3156
3157 tcell = afs_GetCellByIndex(whichCell, READ_LOCK1);
3158 if (!tcell)
3159 return EDOM33;
3160
3161 code = E2BIG7;
3162
3163 for (i = 0; i < AFS_MAXCELLHOSTS8; i++) {
3164 if (tcell->cellHosts[i] == 0)
3165 break;
3166 if (afs_pd_putInt(aout, tcell->cellHosts[i]->addr->sa_ip) != 0)
3167 goto out;
3168 }
3169 for (;i < AFS_MAXCELLHOSTS8; i++) {
3170 if (afs_pd_putInt(aout, 0) != 0)
3171 goto out;
3172 }
3173 if (afs_pd_putString(aout, tcell->cellName) != 0)
3174 goto out;
3175 code = 0;
3176
3177out:
3178 afs_PutCell(tcell, READ_LOCK);
3179 return code;
3180}
3181
3182DECL_PIOCTL(PListAliases)static int PListAliases(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
3183{
3184 afs_int32 whichAlias;
3185 struct cell_alias *tcalias = 0;
3186 int code;
3187
3188 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3189 return EIO5; /* Inappropriate ioctl for device */
3190
3191 if (afs_pd_getInt(ain, &whichAlias) != 0)
3192 return EINVAL22;
3193
3194 tcalias = afs_GetCellAlias(whichAlias);
3195 if (tcalias == NULL((void *)0))
3196 return EDOM33;
3197
3198 code = E2BIG7;
3199 if (afs_pd_putString(aout, tcalias->alias) != 0)
3200 goto out;
3201 if (afs_pd_putString(aout, tcalias->cell) != 0)
3202 goto out;
3203
3204 code = 0;
3205out:
3206 afs_PutCellAlias(tcalias);
3207 return code;
3208}
3209
3210/*!
3211 * VIOC_AFS_DELETE_MT_PT (28) - Delete mount point
3212 *
3213 * \ingroup pioctl
3214 *
3215 * \param[in] ain the name of the file in this dir to remove
3216 * \param[out] aout not in use
3217 *
3218 * \retval EINVAL
3219 * Error if some of the standard args aren't set
3220 * \retval ENOTDIR
3221 * Error if the argument to remove is not a directory
3222 * \retval ENOENT
3223 * Error if there is no cache to remove the mount point from or
3224 * if a vcache doesn't exist
3225 *
3226 * \post
3227 * Ensure that everything is OK before deleting the mountpoint.
3228 * If not, don't delete. Delete a mount point based on a file id.
3229 */
3230DECL_PIOCTL(PRemoveMount)static int PRemoveMount(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
3231{
3232 afs_int32 code;
3233 char *bufp;
3234 char *name;
3235 struct sysname_info sysState;
3236 afs_size_t offset, len;
3237 struct afs_conn *tc;
3238 struct dcache *tdc;
3239 struct vcache *tvc;
3240 struct AFSFetchStatus OutDirStatus;
3241 struct VenusFid tfid;
3242 struct AFSVolSync tsync;
3243 struct rx_connection *rxconn;
3244 XSTATS_DECLSstruct afs_stats_opTimingData *opP = ((void *)0); osi_timeval_t
opStartTime = { 0, 0}, opStopTime, elapsedTime;
3245
3246 /* "ain" is the name of the file in this dir to remove */
3247
3248 AFS_STATCNT(PRemoveMount)((afs_cmstats.callInfo.C_PRemoveMount)++);
3249 if (!avc)
3250 return EINVAL22;
3251 if (afs_pd_getStringPtr(ain, &name) != 0)
3252 return EINVAL22;
3253
3254 code = afs_VerifyVCache(avc, areq)(((avc)->f.states & 0x00000001) ? 0 : afs_VerifyVCache2
((avc),areq));
3255 if (code)
3256 return code;
3257 if (vType(avc)((avc)->v)->v_type != VDIR)
3258 return ENOTDIR20;
3259
3260 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1); /* test for error below */
3261 if (!tdc)
3262 return ENOENT2;
3263 Check_AtSys(avc, name, &sysState, areq);
3264 ObtainReadLock(&tdc->lock)do { ; if (!((&tdc->lock)->excl_locked & 2)) ((
&tdc->lock)->readers_reading)++; else Afs_Lock_Obtain
(&tdc->lock, 1); (&tdc->lock)->pid_last_reader
= (((__curthread())->td_proc)->p_pid ); } while (0);
3265 do {
3266 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
3267 } while (code == ENOENT2 && Next_AtSys(avc, areq, &sysState));
3268 ReleaseReadLock(&tdc->lock)do { ; if (!(--((&tdc->lock)->readers_reading)) &&
(&tdc->lock)->wait_states) Afs_Lock_ReleaseW(&
tdc->lock) ; if ( (&tdc->lock)->pid_last_reader ==
(((__curthread())->td_proc)->p_pid ) ) (&tdc->lock
)->pid_last_reader =0; } while (0);
3269 bufp = sysState.name;
3270 if (code) {
3271 afs_PutDCache(tdc);
3272 goto out;
3273 }
3274 tfid.Cell = avc->f.fid.Cell;
3275 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
3276 if (!tfid.Fid.Unique && (avc->f.states & CForeign0x00002000)) {
3277 tvc = afs_LookupVCache(&tfid, areq, NULL((void *)0), avc, bufp);
3278 } else {
3279 tvc = afs_GetVCache(&tfid, areq, NULL((void *)0), NULL((void *)0));
3280 }
3281 if (!tvc) {
3282 code = ENOENT2;
3283 afs_PutDCache(tdc);
3284 goto out;
3285 }
3286 if (tvc->mvstat != 1) {
3287 afs_PutDCache(tdc);
3288 afs_PutVCache(tvc);
3289 code = EINVAL22;
3290 goto out;
3291 }
3292 ObtainWriteLock(&tvc->lock, 230)do { ; if (!(&tvc->lock)->excl_locked && !(
&tvc->lock)->readers_reading) (&tvc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&tvc->lock, 2);
(&tvc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&tvc->lock)->src_indicator = 230; }
while (0);
3293 code = afs_HandleLink(tvc, areq)(*(afs_cacheType->HandleLink))(tvc, areq);
3294 if (!code) {
3295 if (tvc->linkData) {
3296 if ((tvc->linkData[0] != '#') && (tvc->linkData[0] != '%'))
3297 code = EINVAL22;
3298 } else
3299 code = EIO5;
3300 }
3301 ReleaseWriteLock(&tvc->lock)do { ; (&tvc->lock)->excl_locked &= ~2; if ((&
tvc->lock)->wait_states) Afs_Lock_ReleaseR(&tvc->
lock); (&tvc->lock)->pid_writer=0; } while (0);
3302 osi_dnlc_purgedp(tvc);
3303 afs_PutVCache(tvc);
3304 if (code) {
3305 afs_PutDCache(tdc);
3306 goto out;
3307 }
3308 ObtainWriteLock(&avc->lock, 231)do { ; if (!(&avc->lock)->excl_locked && !(
&avc->lock)->readers_reading) (&avc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&avc->lock, 2);
(&avc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&avc->lock)->src_indicator = 231; }
while (0);
3309 osi_dnlc_remove(avc, bufp, tvc);
3310 do {
3311 tc = afs_Conn(&avc->f.fid, areq, SHARED_LOCK4, &rxconn);
3312 if (tc) {
3313 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEFILE)opP = &(afs_stats_cmfullperf.rpc.fsRPCTimes[6]); microtime
(&opStartTime);;
3314 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 3314); } while
(0);
3315 code =
3316 RXAFS_RemoveFile(rxconn, (struct AFSFid *)&avc->f.fid.Fid, bufp,
3317 &OutDirStatus, &tsync);
3318 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 3318); (void)0; } while (0);
3319 XSTATS_END_TIMEmicrotime(&opStopTime); (opP->numOps)++; if (!code) { (
opP->numSuccesses)++; { if (opStopTime.tv_usec < opStartTime
.tv_usec) { opStopTime.tv_usec += 1000000; opStopTime.tv_sec -=
1; } elapsedTime.tv_sec = opStopTime.tv_sec - opStartTime.tv_sec
; elapsedTime.tv_usec = opStopTime.tv_usec - opStartTime.tv_usec
; }; { (opP->sumTime).tv_sec += elapsedTime.tv_sec; (opP->
sumTime).tv_usec += elapsedTime.tv_usec; if ((opP->sumTime
).tv_usec > 1000000) { (opP->sumTime).tv_usec -= 1000000
; (opP->sumTime).tv_sec++; } }; { if(elapsedTime.tv_sec >
0 ) { (opP->sqrTime).tv_sec += elapsedTime.tv_sec * elapsedTime
.tv_sec + 2 * elapsedTime.tv_sec * elapsedTime.tv_usec /1000000
; (opP->sqrTime).tv_usec += (2 * elapsedTime.tv_sec * elapsedTime
.tv_usec) % 1000000 + (elapsedTime.tv_usec / 1000)*(elapsedTime
.tv_usec / 1000) + 2 * (elapsedTime.tv_usec / 1000) * (elapsedTime
.tv_usec % 1000) / 1000 + (((elapsedTime.tv_usec % 1000) >
707) ? 1 : 0); } else { (opP->sqrTime).tv_usec += (elapsedTime
.tv_usec / 1000)*(elapsedTime.tv_usec / 1000) + 2 * (elapsedTime
.tv_usec / 1000) * (elapsedTime.tv_usec % 1000) / 1000 + (((elapsedTime
.tv_usec % 1000) > 707) ? 1 : 0); } if ((opP->sqrTime).
tv_usec > 1000000) { (opP->sqrTime).tv_usec -= 1000000;
(opP->sqrTime).tv_sec++; } }; if (((elapsedTime.tv_sec <
(opP->minTime).tv_sec) ? 1 : (elapsedTime.tv_sec > (opP
->minTime).tv_sec) ? 0 : (elapsedTime.tv_usec < (opP->
minTime).tv_usec) ? 1 : 0)) { { (opP->minTime).tv_sec = elapsedTime
.tv_sec; (opP->minTime).tv_usec = elapsedTime.tv_usec; }; }
if (((elapsedTime.tv_sec > (opP->maxTime).tv_sec) ? 1 :
(elapsedTime.tv_sec < (opP->maxTime).tv_sec) ? 0 : (elapsedTime
.tv_usec > (opP->maxTime).tv_usec) ? 1 : 0)) { { (opP->
maxTime).tv_sec = elapsedTime.tv_sec; (opP->maxTime).tv_usec
= elapsedTime.tv_usec; }; } };
3320 } else
3321 code = -1;
3322 } while (afs_Analyze
3323 (tc, rxconn, code, &avc->f.fid, areq, AFS_STATS_FS_RPCIDX_REMOVEFILE6,
3324 SHARED_LOCK4, NULL((void *)0)));
3325
3326 if (code) {
3327 if (tdc)
3328 afs_PutDCache(tdc);
3329 ReleaseWriteLock(&avc->lock)do { ; (&avc->lock)->excl_locked &= ~2; if ((&
avc->lock)->wait_states) Afs_Lock_ReleaseR(&avc->
lock); (&avc->lock)->pid_writer=0; } while (0);
3330 goto out;
3331 }
3332 if (tdc) {
3333 /* we have the thing in the cache */
3334 ObtainWriteLock(&tdc->lock, 661)do { ; if (!(&tdc->lock)->excl_locked && !(
&tdc->lock)->readers_reading) (&tdc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&tdc->lock, 2);
(&tdc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&tdc->lock)->src_indicator = 661; }
while (0);
3335 if (afs_LocalHero(avc, tdc, &OutDirStatus, 1)) {
3336 /* we can do it locally */
3337 code = afs_dir_Delete(tdc, bufp);
3338 if (code) {
3339 ZapDCE(tdc)do { (tdc)->f.fid.Fid.Unique = 0; afs_indexUnique[(tdc)->
index] = 0; (tdc)->dflags |= 0x02; } while(0); /* surprise error -- invalid value */
3340 DZap(tdc);
3341 }
3342 }
3343 ReleaseWriteLock(&tdc->lock)do { ; (&tdc->lock)->excl_locked &= ~2; if ((&
tdc->lock)->wait_states) Afs_Lock_ReleaseR(&tdc->
lock); (&tdc->lock)->pid_writer=0; } while (0);
3344 afs_PutDCache(tdc); /* drop ref count */
3345 }
3346 avc->f.states &= ~CUnique0x00001000; /* For the dfs xlator */
3347 ReleaseWriteLock(&avc->lock)do { ; (&avc->lock)->excl_locked &= ~2; if ((&
avc->lock)->wait_states) Afs_Lock_ReleaseR(&avc->
lock); (&avc->lock)->pid_writer=0; } while (0);
3348 code = 0;
3349 out:
3350 if (sysState.allocked)
3351 osi_FreeLargeSpace(bufp);
3352 return code;
3353}
3354
3355/*!
3356 * VIOC_GETCELLSTATUS (35) - Get cell status info
3357 *
3358 * \ingroup pioctl
3359 *
3360 * \param[in] ain The cell you want status information on
3361 * \param[out] aout cell state (as a struct)
3362 *
3363 * \retval EIO Error if the afs daemon hasn't started yet
3364 * \retval ENOENT Error if the cell doesn't exist
3365 *
3366 * \post Returns the state of the cell as defined in a struct cell
3367 */
3368DECL_PIOCTL(PGetCellStatus)static int PGetCellStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
3369{
3370 struct cell *tcell;
3371 char *cellName;
3372 afs_int32 temp;
3373
3374 AFS_STATCNT(PGetCellStatus)((afs_cmstats.callInfo.C_PGetCellStatus)++);
3375 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3376 return EIO5; /* Inappropriate ioctl for device */
3377
3378 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3379 return EINVAL22;
3380
3381 tcell = afs_GetCellByName(cellName, READ_LOCK1);
3382 if (!tcell)
3383 return ENOENT2;
3384 temp = tcell->states;
3385 afs_PutCell(tcell, READ_LOCK);
3386
3387 return afs_pd_putInt(aout, temp);
3388}
3389
3390/*!
3391 * VIOC_SETCELLSTATUS (36) - Set corresponding info
3392 *
3393 * \ingroup pioctl
3394 *
3395 * \param[in] ain
3396 * The cell you want to set information about, and the values you
3397 * want to set
3398 * \param[out] aout
3399 * not in use
3400 *
3401 * \retval EIO Error if the afs daemon hasn't started yet
3402 * \retval EACCES Error if the user doesn't have super-user credentials
3403 *
3404 * \post
3405 * Set the state of the cell in a defined struct cell, based on
3406 * whether or not SetUID is allowed
3407 */
3408DECL_PIOCTL(PSetCellStatus)static int PSetCellStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
3409{
3410 struct cell *tcell;
3411 char *cellName;
3412 afs_int32 flags0, flags1;
3413
3414 if (!afs_osi_suser(*acred))
3415 return EACCES13;
3416 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3417 return EIO5; /* Inappropriate ioctl for device */
3418
3419 if (afs_pd_getInt(ain, &flags0) != 0)
3420 return EINVAL22;
3421 if (afs_pd_getInt(ain, &flags1) != 0)
3422 return EINVAL22;
3423 if (afs_pd_getStringPtr(ain, &cellName) != 0)
3424 return EINVAL22;
3425
3426 tcell = afs_GetCellByName(cellName, WRITE_LOCK2);
3427 if (!tcell)
3428 return ENOENT2;
3429 if (flags0 & CNoSUID0x02)
3430 tcell->states |= CNoSUID0x02;
3431 else
3432 tcell->states &= ~CNoSUID0x02;
3433 afs_PutCell(tcell, WRITE_LOCK);
3434 return 0;
3435}
3436
3437/*!
3438 * VIOC_FLUSHVOLUME (37) - Flush whole volume's data
3439 *
3440 * \ingroup pioctl
3441 *
3442 * \param[in] ain not in use (args in avc)
3443 * \param[out] aout not in use
3444 *
3445 * \retval EINVAL Error if some of the standard args aren't set
3446 * \retval EIO Error if the afs daemon hasn't started yet
3447 *
3448 * \post
3449 * Flush all cached contents of a volume. Exactly what stays and what
3450 * goes depends on the platform.
3451 *
3452 * \notes
3453 * Does not flush a file that a user has open and is using, because
3454 * it will be re-created on next write. Also purges the dnlc,
3455 * because things are screwed up.
3456 */
3457DECL_PIOCTL(PFlushVolumeData)static int PFlushVolumeData(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
3458{
3459 afs_int32 i;
3460 struct dcache *tdc;
3461 struct vcache *tvc;
3462 struct volume *tv;
3463 afs_int32 cell, volume;
3464 struct afs_q *tq, *uq;
3465#ifdef AFS_DARWIN80_ENV
3466 vnode_tstruct vnode vp;
3467#endif
3468
3469 AFS_STATCNT(PFlushVolumeData)((afs_cmstats.callInfo.C_PFlushVolumeData)++);
3470 if (!avc)
3471 return EINVAL22;
3472 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
3473 return EIO5; /* Inappropriate ioctl for device */
3474
3475 volume = avc->f.fid.Fid.Volume; /* who to zap */
3476 cell = avc->f.fid.Cell;
3477
3478 /*
3479 * Clear stat'd flag from all vnodes from this volume; this will
3480 * invalidate all the vcaches associated with the volume.
3481 */
3482 loop:
3483 ObtainReadLock(&afs_xvcache)do { ; if (!((&afs_xvcache)->excl_locked & 2)) ((&
afs_xvcache)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xvcache, 1); (&afs_xvcache)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
3484 i = VCHashV(&avc->f.fid)((&avc->f.fid)->Fid.Volume & (1024 -1));
3485 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
3486 uq = QPrev(tq)((tq)->prev);
3487 tvc = QTOVH(tq)((struct vcache *)((char *)(tq)-(char *)(&((struct vcache
*)((void *)0))->vhashq)));
3488 if (tvc->f.fid.Fid.Volume == volume && tvc->f.fid.Cell == cell) {
3489 if (tvc->f.states & CVInit0x10000000) {
3490 ReleaseReadLock(&afs_xvcache)do { ; if (!(--((&afs_xvcache)->readers_reading)) &&
(&afs_xvcache)->wait_states) Afs_Lock_ReleaseW(&afs_xvcache
) ; if ( (&afs_xvcache)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xvcache)->pid_last_reader
=0; } while (0);
3491 afs_osi_Sleep(&tvc->f.states);
3492 goto loop;
3493 }
3494#ifdef AFS_DARWIN80_ENV
3495 if (tvc->f.states & CDeadVnode) {
3496 ReleaseReadLock(&afs_xvcache)do { ; if (!(--((&afs_xvcache)->readers_reading)) &&
(&afs_xvcache)->wait_states) Afs_Lock_ReleaseW(&afs_xvcache
) ; if ( (&afs_xvcache)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xvcache)->pid_last_reader
=0; } while (0);
3497 afs_osi_Sleep(&tvc->f.states);
3498 goto loop;
3499 }
3500 vp = AFSTOV(tvc)((tvc)->v);
3501 if (vnode_get(vp))
3502 continue;
3503 if (vnode_ref(vp)) {
3504 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 3504); } while
(0);
3505 vnode_put(vp);
3506 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 3506); (void)0; } while (0);
3507 continue;
3508 }
3509#else
3510 AFS_FAST_HOLD(tvc)vref((((tvc))->v));
3511#endif
3512 ReleaseReadLock(&afs_xvcache)do { ; if (!(--((&afs_xvcache)->readers_reading)) &&
(&afs_xvcache)->wait_states) Afs_Lock_ReleaseW(&afs_xvcache
) ; if ( (&afs_xvcache)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xvcache)->pid_last_reader
=0; } while (0);
3513#ifdef AFS_BOZONLOCK_ENV
3514 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
3515#endif
3516 ObtainWriteLock(&tvc->lock, 232)do { ; if (!(&tvc->lock)->excl_locked && !(
&tvc->lock)->readers_reading) (&tvc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&tvc->lock, 2);
(&tvc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&tvc->lock)->src_indicator = 232; }
while (0);
3517
3518 ObtainWriteLock(&afs_xcbhash, 458)do { ; if (!(&afs_xcbhash)->excl_locked && !(&
afs_xcbhash)->readers_reading) (&afs_xcbhash) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xcbhash, 2); (&afs_xcbhash
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xcbhash)->src_indicator = 458; } while (0);
3519 afs_DequeueCallback(tvc);
3520 tvc->f.states &= ~(CStatd0x00000001 | CDirty0x00000020);
3521 ReleaseWriteLock(&afs_xcbhash)do { ; (&afs_xcbhash)->excl_locked &= ~2; if ((&
afs_xcbhash)->wait_states) Afs_Lock_ReleaseR(&afs_xcbhash
); (&afs_xcbhash)->pid_writer=0; } while (0);
3522 if (tvc->f.fid.Fid.Vnode & 1 || (vType(tvc)((tvc)->v)->v_type == VDIR))
3523 osi_dnlc_purgedp(tvc);
3524 afs_TryToSmush(tvc, *acred, 1);
3525 ReleaseWriteLock(&tvc->lock)do { ; (&tvc->lock)->excl_locked &= ~2; if ((&
tvc->lock)->wait_states) Afs_Lock_ReleaseR(&tvc->
lock); (&tvc->lock)->pid_writer=0; } while (0);
3526#ifdef AFS_BOZONLOCK_ENV
3527 afs_BozonUnlock(&tvc->pvnLock, tvc);
3528#endif
3529#ifdef AFS_DARWIN80_ENV
3530 vnode_put(AFSTOV(tvc)((tvc)->v));
3531#endif
3532 ObtainReadLock(&afs_xvcache)do { ; if (!((&afs_xvcache)->excl_locked & 2)) ((&
afs_xvcache)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xvcache, 1); (&afs_xvcache)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
3533 uq = QPrev(tq)((tq)->prev);
3534 /* our tvc ptr is still good until now */
3535 AFS_FAST_RELE(tvc)do { do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)),
(0), "/home/wollman/openafs/src/afs/afs_pioctl.c", 3535); } while
(0); do { vrele(((tvc)->v)); } while(0);; do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 3535); (void)0; } while (0); } while (0);
3536 }
3537 }
3538 ReleaseReadLock(&afs_xvcache)do { ; if (!(--((&afs_xvcache)->readers_reading)) &&
(&afs_xvcache)->wait_states) Afs_Lock_ReleaseW(&afs_xvcache
) ; if ( (&afs_xvcache)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xvcache)->pid_last_reader
=0; } while (0);
3539
3540
3541 ObtainWriteLock(&afs_xdcache, 328)do { ; if (!(&afs_xdcache)->excl_locked && !(&
afs_xdcache)->readers_reading) (&afs_xdcache) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xdcache, 2); (&afs_xdcache
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xdcache)->src_indicator = 328; } while (0); /* needed to flush any stuff */
3542 for (i = 0; i < afs_cacheFiles; i++) {
3543 if (!(afs_indexFlags[i] & IFEverUsed1))
3544 continue; /* never had any data */
3545 tdc = afs_GetDSlot(i, NULL)(*(afs_cacheType->GetDSlot))(i, ((void *)0));
3546 if (tdc->refCount <= 1) { /* too high, in use by running sys call */
3547 ReleaseReadLock(&tdc->tlock)do { ; if (!(--((&tdc->tlock)->readers_reading)) &&
(&tdc->tlock)->wait_states) Afs_Lock_ReleaseW(&
tdc->tlock) ; if ( (&tdc->tlock)->pid_last_reader
== (((__curthread())->td_proc)->p_pid ) ) (&tdc->
tlock)->pid_last_reader =0; } while (0);
3548 if (tdc->f.fid.Fid.Volume == volume && tdc->f.fid.Cell == cell) {
3549 if (!(afs_indexFlags[i] & IFDataMod4)) {
3550 /* if the file is modified, but has a ref cnt of only 1,
3551 * then someone probably has the file open and is writing
3552 * into it. Better to skip flushing such a file, it will be
3553 * brought back immediately on the next write anyway.
3554 *
3555 * If we *must* flush, then this code has to be rearranged
3556 * to call afs_storeAllSegments() first */
3557 afs_FlushDCache(tdc);
3558 }
3559 }
3560 } else {
3561 ReleaseReadLock(&tdc->tlock)do { ; if (!(--((&tdc->tlock)->readers_reading)) &&
(&tdc->tlock)->wait_states) Afs_Lock_ReleaseW(&
tdc->tlock) ; if ( (&tdc->tlock)->pid_last_reader
== (((__curthread())->td_proc)->p_pid ) ) (&tdc->
tlock)->pid_last_reader =0; } while (0);
3562 }
3563 afs_PutDCache(tdc); /* bumped by getdslot */
3564 }
3565 ReleaseWriteLock(&afs_xdcache)do { ; (&afs_xdcache)->excl_locked &= ~2; if ((&
afs_xdcache)->wait_states) Afs_Lock_ReleaseR(&afs_xdcache
); (&afs_xdcache)->pid_writer=0; } while (0);
3566
3567 ObtainReadLock(&afs_xvolume)do { ; if (!((&afs_xvolume)->excl_locked & 2)) ((&
afs_xvolume)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xvolume, 1); (&afs_xvolume)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
3568 for (i = 0; i < NVOLS64; i++) {
3569 for (tv = afs_volumes[i]; tv; tv = tv->next) {
3570 if (tv->volume == volume) {
3571 afs_ResetVolumeInfo(tv);
3572 break;
3573 }
3574 }
3575 }
3576 ReleaseReadLock(&afs_xvolume)do { ; if (!(--((&afs_xvolume)->readers_reading)) &&
(&afs_xvolume)->wait_states) Afs_Lock_ReleaseW(&afs_xvolume
) ; if ( (&afs_xvolume)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xvolume)->pid_last_reader
=0; } while (0);
3577
3578 /* probably, a user is doing this, probably, because things are screwed up.
3579 * maybe it's the dnlc's fault? */
3580 osi_dnlc_purge();
3581 return 0;
3582}
3583
3584
3585/*!
3586 * VIOCGETVCXSTATUS (41) - gets vnode x status
3587 *
3588 * \ingroup pioctl
3589 *
3590 * \param[in] ain
3591 * not in use (avc used)
3592 * \param[out] aout
3593 * vcxstat: the file id, the data version, any lock, the parent vnode,
3594 * the parent unique id, the trunc position, the callback, cbExpires,
3595 * what access is being made, what files are open,
3596 * any users executing/writing, the flock count, the states,
3597 * the move stat
3598 *
3599 * \retval EINVAL
3600 * Error if some of the initial default arguments aren't set
3601 * \retval EACCES
3602 * Error if access to check the mode bits is denied
3603 *
3604 * \post
3605 * gets stats for the vnode, a struct listed in vcxstat
3606 */
3607DECL_PIOCTL(PGetVnodeXStatus)static int PGetVnodeXStatus(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
3608{
3609 afs_int32 code;
3610 struct vcxstat stat;
3611 afs_int32 mode, i;
3612
3613/* AFS_STATCNT(PGetVnodeXStatus); */
3614 if (!avc)
3615 return EINVAL22;
3616 code = afs_VerifyVCache(avc, areq)(((avc)->f.states & 0x00000001) ? 0 : afs_VerifyVCache2
((avc),areq));
3617 if (code)
3618 return code;
3619 if (vType(avc)((avc)->v)->v_type == VDIR)
3620 mode = PRSFS_LOOKUP8;
3621 else
3622 mode = PRSFS_READ1;
3623 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS1))
3624 return EACCES13;
3625
3626 memset(&stat, 0, sizeof(struct vcxstat));
3627 stat.fid = avc->f.fid;
3628 hset32(stat.DataVersion, hgetlo(avc->f.m.DataVersion))((stat.DataVersion).high = 0, (stat.DataVersion).low = (((avc
->f.m.DataVersion).low)));
3629 stat.lock = avc->lock;
3630 stat.parentVnode = avc->f.parent.vnode;
3631 stat.parentUnique = avc->f.parent.unique;
3632 hset(stat.flushDV, avc->flushDV)((stat.flushDV) = (avc->flushDV));
3633 hset(stat.mapDV, avc->mapDV)((stat.mapDV) = (avc->mapDV));
3634 stat.truncPos = avc->f.truncPos;
3635 { /* just grab the first two - won't break anything... */
3636 struct axscache *ac;
3637
3638 for (i = 0, ac = avc->Access; ac && i < CPSIZE2; i++, ac = ac->next) {
3639 stat.randomUid[i] = ac->uid;
3640 stat.randomAccess[i] = ac->axess;
3641 }
3642 }
3643 stat.callback = afs_data_pointer_to_int32(avc->callback);
3644 stat.cbExpires = avc->cbExpires;
3645 stat.anyAccess = avc->f.anyAccess;
3646 stat.opens = avc->opens;
3647 stat.execsOrWriters = avc->execsOrWriters;
3648 stat.flockCount = avc->flockCount;
3649 stat.mvstat = avc->mvstat;
3650 stat.states = avc->f.states;
3651 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat));
3652}
3653
3654
3655DECL_PIOCTL(PGetVnodeXStatus2)static int PGetVnodeXStatus2(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
3656{
3657 afs_int32 code;
3658 struct vcxstat2 stat;
3659 afs_int32 mode;
3660
3661 if (!avc)
3662 return EINVAL22;
3663 code = afs_VerifyVCache(avc, areq)(((avc)->f.states & 0x00000001) ? 0 : afs_VerifyVCache2
((avc),areq));
3664 if (code)
3665 return code;
3666 if (vType(avc)((avc)->v)->v_type == VDIR)
3667 mode = PRSFS_LOOKUP8;
3668 else
3669 mode = PRSFS_READ1;
3670 if (!afs_AccessOK(avc, mode, areq, CHECK_MODE_BITS1))
3671 return EACCES13;
3672
3673 memset(&stat, 0, sizeof(struct vcxstat2));
3674
3675 stat.cbExpires = avc->cbExpires;
3676 stat.anyAccess = avc->f.anyAccess;
3677 stat.mvstat = avc->mvstat;
3678 stat.callerAccess = afs_GetAccessBits(avc, ~0, areq);
3679
3680 return afs_pd_putBytes(aout, &stat, sizeof(struct vcxstat2));
3681}
3682
3683
3684/*!
3685 * VIOC_AFS_SYSNAME (38) - Change @sys value
3686 *
3687 * \ingroup pioctl
3688 *
3689 * \param[in] ain new value for @sys
3690 * \param[out] aout count, entry, list (debug values?)
3691 *
3692 * \retval EINVAL
3693 * Error if afsd isn't running, the new sysname is too large,
3694 * the new sysname causes issues (starts with a . or ..),
3695 * there is no PAG set in the credentials, or the user of a PAG
3696 * can't be found
3697 * \retval EACCES
3698 * Error if the user doesn't have super-user credentials
3699 *
3700 * \post
3701 * Set the value of @sys if these things work: if the input isn't
3702 * too long or if input doesn't start with . or ..
3703 *
3704 * \notes
3705 * We require root for local sysname changes, but not for remote
3706 * (since we don't really believe remote uids anyway)
3707 * outname[] shouldn't really be needed- this is left as an
3708 * exercise for the reader.
3709 */
3710DECL_PIOCTL(PSetSysName)static int PSetSysName(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
3711{
3712 char *inname = NULL((void *)0);
3713 char outname[MAXSYSNAME128];
3714 afs_int32 setsysname;
3715 int foundname = 0;
3716 struct afs_exporter *exporter;
3717 struct unixuser *au;
3718 afs_int32 pag, error;
3719 int t, count, num = 0, allpags = 0;
3720 char **sysnamelist;
3721 struct afs_pdata validate;
3722
3723 AFS_STATCNT(PSetSysName)((afs_cmstats.callInfo.C_PSetSysName)++);
3724 if (!afs_globalVFS) {
3725 /* Afsd is NOT running; disable it */
3726#if defined(KERNEL_HAVE_UERROR)
3727 return (setuerror(EINVAL)u.u_error = (22), EINVAL22);
3728#else
3729 return (EINVAL22);
3730#endif
3731 }
3732 if (afs_pd_getInt(ain, &setsysname) != 0)
3733 return EINVAL22;
3734 if (setsysname & 0x8000) {
3735 allpags = 1;
3736 setsysname &= ~0x8000;
3737 }
3738 if (setsysname) {
3739
3740 /* Check my args */
3741 if (setsysname < 0 || setsysname > MAXNUMSYSNAMES32)
3742 return EINVAL22;
3743 validate = *ain;
3744 for (count = 0; count < setsysname; count++) {
3745 if (afs_pd_getStringPtr(&validate, &inname) != 0)
3746 return EINVAL22;
3747 t = strlen(inname);
3748 if (t >= MAXSYSNAME128 || t <= 0)
3749 return EINVAL22;
3750 /* check for names that can shoot us in the foot */
3751 if (inname[0] == '.' && (inname[1] == 0
3752 || (inname[1] == '.' && inname[2] == 0)))
3753 return EINVAL22;
3754 }
3755 /* args ok, so go back to the beginning of that section */
3756
3757 if (afs_pd_getStringPtr(ain, &inname) != 0)
3758 return EINVAL22;
3759 num = count;
3760 }
3761 if (afs_cr_gid(*acred)((*acred)->cr_groups[0]) == RMTUSER_REQ0xabc ||
3762 afs_cr_gid(*acred)((*acred)->cr_groups[0]) == RMTUSER_REQ_PRIV0xabe) { /* Handles all exporters */
3763 if (allpags && afs_cr_gid(*acred)((*acred)->cr_groups[0]) != RMTUSER_REQ_PRIV0xabe) {
3764 return EPERM1;
3765 }
3766 pag = PagInCred(*acred);
3767 if (pag == NOPAG0xffffffff) {
3768 return EINVAL22; /* Better than panicing */
3769 }
3770 if (!(au = afs_FindUser(pag, -1, READ_LOCK1))) {
3771 return EINVAL22; /* Better than panicing */
3772 }
3773 if (!(exporter = au->exporter)) {
3774 afs_PutUser(au, READ_LOCK1);
3775 return EINVAL22; /* Better than panicing */
3776 }
3777 error = EXP_SYSNAME(exporter, inname, &sysnamelist,(*(exporter)->exp_op->export_sysname)(exporter, inname,
&sysnamelist, &num, allpags)
3778 &num, allpags)(*(exporter)->exp_op->export_sysname)(exporter, inname,
&sysnamelist, &num, allpags);
3779 if (error) {
3780 if (error == ENODEV19)
3781 foundname = 0; /* sysname not set yet! */
3782 else {
3783 afs_PutUser(au, READ_LOCK1);
3784 return error;
3785 }
3786 } else {
3787 foundname = num;
3788 strcpy(outname, sysnamelist[0]);
3789 }
3790 afs_PutUser(au, READ_LOCK1);
3791 if (setsysname)
3792 afs_sysnamegen++;
3793 } else {
3794 /* Not xlating, so local case */
3795 if (!afs_sysname)
3796 osi_Panic("PSetSysName: !afs_sysname\n");
3797 if (!setsysname) { /* user just wants the info */
3798 strcpy(outname, afs_sysname);
3799 foundname = afs_sysnamecount;
3800 sysnamelist = afs_sysnamelist;
3801 } else { /* Local guy; only root can change sysname */
3802 if (!afs_osi_suser(*acred))
3803 return EACCES13;
3804
3805 /* allpags makes no sense for local use */
3806 if (allpags)
3807 return EINVAL22;
3808
3809 /* clear @sys entries from the dnlc, once afs_lookup can
3810 * do lookups of @sys entries and thinks it can trust them */
3811 /* privs ok, store the entry, ... */
3812
3813 if (strlen(inname) >= MAXSYSNAME128-1)
3814 return EINVAL22;
3815 strcpy(afs_sysname, inname);
3816
3817 if (setsysname > 1) { /* ... or list */
3818 for (count = 1; count < setsysname; ++count) {
3819 if (!afs_sysnamelist[count])
3820 osi_Panic
3821 ("PSetSysName: no afs_sysnamelist entry to write\n");
3822 if (afs_pd_getString(ain, afs_sysnamelist[count],
3823 MAXSYSNAME128) != 0)
3824 return EINVAL22;
3825 }
3826 }
3827 afs_sysnamecount = setsysname;
3828 afs_sysnamegen++;
3829 }
3830 }
3831 if (!setsysname) {
3832 if (afs_pd_putInt(aout, foundname) != 0)
3833 return E2BIG7;
3834 if (foundname) {
3835 if (afs_pd_putString(aout, outname) != 0)
3836 return E2BIG7;
3837 for (count = 1; count < foundname; ++count) { /* ... or list. */
3838 if (!sysnamelist[count])
3839 osi_Panic
3840 ("PSetSysName: no afs_sysnamelist entry to read\n");
3841 t = strlen(sysnamelist[count]);
3842 if (t >= MAXSYSNAME128)
3843 osi_Panic("PSetSysName: sysname entry garbled\n");
3844 if (afs_pd_putString(aout, sysnamelist[count]) != 0)
3845 return E2BIG7;
3846 }
3847 }
3848 }
3849 return 0;
3850}
3851
3852/* sequential search through the list of touched cells is not a good
3853 * long-term solution here. For small n, though, it should be just
3854 * fine. Should consider special-casing the local cell for large n.
3855 * Likewise for PSetSPrefs.
3856 *
3857 * s - number of ids in array l[] -- NOT index of last id
3858 * l - array of cell ids which have volumes that need to be sorted
3859 * vlonly - sort vl servers or file servers?
3860 */
3861static void *
3862ReSortCells_cb(struct cell *cell, void *argdata)
3863{
3864 afs_int32 *p = (afs_int32 *) argdata;
3865 afs_int32 *l = p + 1;
3866 int i, s = p[0];
3867
3868 for (i = 0; i < s; i++) {
3869 if (l[i] == cell->cellNum) {
3870 ObtainWriteLock(&cell->lock, 690)do { ; if (!(&cell->lock)->excl_locked && !
(&cell->lock)->readers_reading) (&cell->lock
) -> excl_locked = 2; else Afs_Lock_Obtain(&cell->lock
, 2); (&cell->lock)->pid_writer = (((__curthread())
->td_proc)->p_pid ); (&cell->lock)->src_indicator
= 690; } while (0);
3871 afs_SortServers(cell->cellHosts, AFS_MAXCELLHOSTS8);
3872 ReleaseWriteLock(&cell->lock)do { ; (&cell->lock)->excl_locked &= ~2; if ((&
cell->lock)->wait_states) Afs_Lock_ReleaseR(&cell->
lock); (&cell->lock)->pid_writer=0; } while (0);
3873 }
3874 }
3875
3876 return NULL((void *)0);
3877}
3878
3879static void
3880ReSortCells(int s, afs_int32 * l, int vlonly)
3881{
3882 int i;
3883 struct volume *j;
3884 int k;
3885
3886 if (vlonly) {
3887 afs_int32 *p;
3888 p = afs_osi_Alloc(sizeof(afs_int32) * (s + 1));
3889 osi_Assert(p != NULL)(void)((p != ((void *)0)) || (osi_AssertFailK( "p != NULL" , "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 3889), 0));
3890 p[0] = s;
3891 memcpy(p + 1, l, s * sizeof(afs_int32));
3892 afs_TraverseCells(&ReSortCells_cb, p);
3893 afs_osi_Free(p, sizeof(afs_int32) * (s + 1));
3894 return;
3895 }
3896
3897 ObtainReadLock(&afs_xvolume)do { ; if (!((&afs_xvolume)->excl_locked & 2)) ((&
afs_xvolume)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xvolume, 1); (&afs_xvolume)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
3898 for (i = 0; i < NVOLS64; i++) {
3899 for (j = afs_volumes[i]; j; j = j->next) {
3900 for (k = 0; k < s; k++)
3901 if (j->cell == l[k]) {
3902 ObtainWriteLock(&j->lock, 233)do { ; if (!(&j->lock)->excl_locked && !(&
j->lock)->readers_reading) (&j->lock) -> excl_locked
= 2; else Afs_Lock_Obtain(&j->lock, 2); (&j->lock
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&j->lock)->src_indicator = 233; } while (0);
3903 afs_SortServers(j->serverHost, AFS_MAXHOSTS13);
3904 ReleaseWriteLock(&j->lock)do { ; (&j->lock)->excl_locked &= ~2; if ((&
j->lock)->wait_states) Afs_Lock_ReleaseR(&j->lock
); (&j->lock)->pid_writer=0; } while (0);
3905 break;
3906 }
3907 }
3908 }
3909 ReleaseReadLock(&afs_xvolume)do { ; if (!(--((&afs_xvolume)->readers_reading)) &&
(&afs_xvolume)->wait_states) Afs_Lock_ReleaseW(&afs_xvolume
) ; if ( (&afs_xvolume)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xvolume)->pid_last_reader
=0; } while (0);
3910}
3911
3912
3913static int debugsetsp = 0;
3914static int
3915afs_setsprefs(struct spref *sp, unsigned int num, unsigned int vlonly)
3916{
3917 struct srvAddr *sa;
3918 int i, j, k, matches, touchedSize;
3919 struct server *srvr = NULL((void *)0);
3920 afs_int32 touched[34];
3921 int isfs;
3922
3923 touchedSize = 0;
3924 for (k = 0; k < num; sp++, k++) {
3925 if (debugsetsp) {
3926 afs_warn("sp host=%x, rank=%d\n", sp->host.s_addr, sp->rank);
3927 }
3928 matches = 0;
3929 ObtainReadLock(&afs_xserver)do { ; if (!((&afs_xserver)->excl_locked & 2)) ((&
afs_xserver)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xserver, 1); (&afs_xserver)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
3930
3931 i = SHash(sp->host.s_addr)(((__builtin_constant_p(sp->host.s_addr) ? ((((__uint32_t)
(sp->host.s_addr)) >> 24) | ((((__uint32_t)(sp->host
.s_addr)) & (0xff << 16)) >> 8) | ((((__uint32_t
)(sp->host.s_addr)) & (0xff << 8)) << 8) |
(((__uint32_t)(sp->host.s_addr)) << 24)) : __bswap32_var
(sp->host.s_addr))) & (16 -1));
3932 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
3933 if (sa->sa_ip == sp->host.s_addr) {
3934 srvr = sa->server;
3935 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
3936 || (sa->sa_portal == AFS_FSPORT((unsigned short) (__builtin_constant_p(7000) ? (__uint16_t)(
((__uint16_t)(7000)) << 8 | ((__uint16_t)(7000)) >>
8) : __bswap16_var(7000))));
3937 if ((!vlonly && isfs) || (vlonly && !isfs)) {
3938 matches++;
3939 break;
3940 }
3941 }
3942 }
3943
3944 if (sa && matches) { /* found one! */
3945 if (debugsetsp) {
3946 afs_warn("sa ip=%x, ip_rank=%d\n", sa->sa_ip, sa->sa_iprank);
3947 }
3948 sa->sa_iprank = sp->rank + afs_randomMod15();
3949 afs_SortOneServer(sa->server);
3950
3951 if (srvr->cell) {
3952 /* if we don't know yet what cell it's in, this is moot */
3953 for (j = touchedSize - 1;
3954 j >= 0 && touched[j] != srvr->cell->cellNum; j--)
3955 /* is it in our list of touched cells ? */ ;
3956 if (j < 0) { /* no, it's not */
3957 touched[touchedSize++] = srvr->cell->cellNum;
3958 if (touchedSize >= 32) { /* watch for ovrflow */
3959 ReleaseReadLock(&afs_xserver)do { ; if (!(--((&afs_xserver)->readers_reading)) &&
(&afs_xserver)->wait_states) Afs_Lock_ReleaseW(&afs_xserver
) ; if ( (&afs_xserver)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xserver)->pid_last_reader
=0; } while (0);
3960 ReSortCells(touchedSize, touched, vlonly);
3961 touchedSize = 0;
3962 ObtainReadLock(&afs_xserver)do { ; if (!((&afs_xserver)->excl_locked & 2)) ((&
afs_xserver)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xserver, 1); (&afs_xserver)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
3963 }
3964 }
3965 }
3966 }
3967
3968 ReleaseReadLock(&afs_xserver)do { ; if (!(--((&afs_xserver)->readers_reading)) &&
(&afs_xserver)->wait_states) Afs_Lock_ReleaseW(&afs_xserver
) ; if ( (&afs_xserver)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xserver)->pid_last_reader
=0; } while (0);
3969 /* if we didn't find one, start to create one. */
3970 /* Note that it doesn't have a cell yet... */
3971 if (!matches) {
3972 afs_uint32 temp = sp->host.s_addr;
3973 srvr =
3974 afs_GetServer(&temp, 1, 0, (vlonly ? AFS_VLPORT((unsigned short) (__builtin_constant_p(7003) ? (__uint16_t)(
((__uint16_t)(7003)) << 8 | ((__uint16_t)(7003)) >>
8) : __bswap16_var(7003))) : AFS_FSPORT((unsigned short) (__builtin_constant_p(7000) ? (__uint16_t)(
((__uint16_t)(7000)) << 8 | ((__uint16_t)(7000)) >>
8) : __bswap16_var(7000)))),
3975 WRITE_LOCK2, (afsUUID *) 0, 0);
3976 srvr->addr->sa_iprank = sp->rank + afs_randomMod15();
3977 afs_PutServer(srvr, WRITE_LOCK);
3978 }
3979 } /* for all cited preferences */
3980
3981 ReSortCells(touchedSize, touched, vlonly);
3982 return 0;
3983}
3984
3985/*!
3986 * VIOC_SETPREFS (46) - Set server ranks
3987 *
3988 * \param[in] ain the sprefs value you want the sprefs to be set to
3989 * \param[out] aout not in use
3990 *
3991 * \retval EIO
3992 * Error if the afs daemon hasn't started yet
3993 * \retval EACCES
3994 * Error if the user doesn't have super-user credentials
3995 * \retval EINVAL
3996 * Error if the struct setsprefs is too large or if it multiplied
3997 * by the number of servers is too large
3998 *
3999 * \post set the sprefs using the afs_setsprefs() function
4000 */
4001DECL_PIOCTL(PSetSPrefs)static int PSetSPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4002{
4003 struct setspref *ssp;
4004 char *ainPtr;
4005 size_t ainSize;
4006
4007 AFS_STATCNT(PSetSPrefs)((afs_cmstats.callInfo.C_PSetSPrefs)++);
4008
4009 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4010 return EIO5; /* Inappropriate ioctl for device */
4011
4012 if (!afs_osi_suser(*acred))
4013 return EACCES13;
4014
4015 /* The I/O handling here is ghastly, as it relies on overrunning the ends
4016 * of arrays. But, i'm not quite brave enough to change it yet. */
4017 ainPtr = ain->ptr;
4018 ainSize = ain->remaining;
4019
4020 if (ainSize < sizeof(struct setspref))
4021 return EINVAL22;
4022
4023 ssp = (struct setspref *)ainPtr;
4024 if (ainSize < (sizeof(struct setspref)
4025 + sizeof(struct spref) * ssp->num_servers-1))
4026 return EINVAL22;
4027
4028 afs_setsprefs(&(ssp->servers[0]), ssp->num_servers,
4029 (ssp->flags & DBservers1));
4030 return 0;
4031}
4032
4033/*
4034 * VIOC_SETPREFS33 (42) - Set server ranks (deprecated)
4035 *
4036 * \param[in] ain the server preferences to be set
4037 * \param[out] aout not in use
4038 *
4039 * \retval EIO Error if the afs daemon hasn't started yet
4040 * \retval EACCES Error if the user doesn't have super-user credentials
4041 *
4042 * \post set the server preferences, calling a function
4043 *
4044 * \notes this may only be performed by the local root user.
4045 */
4046DECL_PIOCTL(PSetSPrefs33)static int PSetSPrefs33(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4047{
4048 AFS_STATCNT(PSetSPrefs)((afs_cmstats.callInfo.C_PSetSPrefs)++);
4049 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4050 return EIO5; /* Inappropriate ioctl for device */
4051
4052
4053 if (!afs_osi_suser(*acred))
4054 return EACCES13;
4055
4056 afs_setsprefs((struct spref *)afs_pd_where(ain),
4057 afs_pd_remaining(ain) / sizeof(struct spref),
4058 0 /*!vlonly */ );
4059 return 0;
4060}
4061
4062/*
4063 * VIOC_GETSPREFS (43) - Get server ranks
4064 *
4065 * \ingroup pioctl
4066 *
4067 * \param[in] ain the server preferences to get
4068 * \param[out] aout the server preferences information
4069 *
4070 * \retval EIO Error if the afs daemon hasn't started yet
4071 * \retval ENOENT Error if the sprefrequest is too large
4072 *
4073 * \post Get the sprefs
4074 *
4075 * \notes
4076 * in the hash table of server structs, all servers with the same
4077 * IP address; will be on the same overflow chain; This could be
4078 * sped slightly in some circumstances by having it cache the
4079 * immediately previous slot in the hash table and some
4080 * supporting information; Only reports file servers now.
4081 */
4082DECL_PIOCTL(PGetSPrefs)static int PGetSPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4083{
4084 struct sprefrequest spin; /* input */
4085 struct sprefinfo *spout; /* output */
4086 struct spref *srvout; /* one output component */
4087 int i, j; /* counters for hash table traversal */
4088 struct server *srvr; /* one of CM's server structs */
4089 struct srvAddr *sa;
4090 int vlonly; /* just return vlservers ? */
4091 int isfs;
4092
4093 AFS_STATCNT(PGetSPrefs)((afs_cmstats.callInfo.C_PGetSPrefs)++);
4094 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4095 return EIO5; /* Inappropriate ioctl for device */
4096
4097 /* Work out from the size whether we've got a new, or old, style pioctl */
4098 if (afs_pd_remaining(ain) < sizeof(struct sprefrequest)) {
4099 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest_33)) != 0)
4100 return ENOENT2;
4101 vlonly = 0;
4102 spin.flags = 0;
4103 } else {
4104 if (afs_pd_getBytes(ain, &spin, sizeof(struct sprefrequest)) != 0)
4105 return EINVAL22;
4106 vlonly = (spin.flags & DBservers1);
4107 }
4108
4109 /* This code relies on overflowing arrays. It's ghastly, but I'm not
4110 * quite brave enough to tackle it yet ...
4111 */
4112
4113 /* struct sprefinfo includes 1 server struct... that size gets added
4114 * in during the loop that follows.
4115 */
4116 spout = afs_pd_inline(aout,
4117 sizeof(struct sprefinfo) - sizeof(struct spref));
4118 spout->next_offset = spin.offset;
4119 spout->num_servers = 0;
4120 srvout = spout->servers;
4121
4122 ObtainReadLock(&afs_xserver)do { ; if (!((&afs_xserver)->excl_locked & 2)) ((&
afs_xserver)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xserver, 1); (&afs_xserver)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0);
4123 for (i = 0, j = 0; j < NSERVERS16; j++) { /* sift through hash table */
4124 for (sa = afs_srvAddrs[j]; sa; sa = sa->next_bkt, i++) {
4125 if (spin.offset > (unsigned short)i) {
4126 continue; /* catch up to where we left off */
4127 }
4128 spout->next_offset++;
4129
4130 srvr = sa->server;
4131 isfs = (srvr->cell && (sa->sa_portal == srvr->cell->fsport))
4132 || (sa->sa_portal == AFS_FSPORT((unsigned short) (__builtin_constant_p(7000) ? (__uint16_t)(
((__uint16_t)(7000)) << 8 | ((__uint16_t)(7000)) >>
8) : __bswap16_var(7000))));
4133
4134 if ((vlonly && isfs) || (!vlonly && !isfs)) {
4135 /* only report ranks for vl servers */
4136 continue;
4137 }
4138
4139 /* Check we've actually got the space we're about to use */
4140 if (afs_pd_inline(aout, sizeof(struct spref)) == NULL((void *)0)) {
4141 ReleaseReadLock(&afs_xserver)do { ; if (!(--((&afs_xserver)->readers_reading)) &&
(&afs_xserver)->wait_states) Afs_Lock_ReleaseW(&afs_xserver
) ; if ( (&afs_xserver)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xserver)->pid_last_reader
=0; } while (0); /* no more room! */
4142 return 0;
4143 }
4144
4145 srvout->host.s_addr = sa->sa_ip;
4146 srvout->rank = sa->sa_iprank;
4147 spout->num_servers++;
4148 srvout++;
4149 }
4150 }
4151 ReleaseReadLock(&afs_xserver)do { ; if (!(--((&afs_xserver)->readers_reading)) &&
(&afs_xserver)->wait_states) Afs_Lock_ReleaseW(&afs_xserver
) ; if ( (&afs_xserver)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xserver)->pid_last_reader
=0; } while (0);
4152
4153 spout->next_offset = 0; /* start over from the beginning next time */
4154
4155 return 0;
4156}
4157
4158/* Enable/Disable the specified exporter. Must be root to disable an exporter */
4159int afs_NFSRootOnly = 1;
4160/*!
4161 * VIOC_EXPORTAFS (39) - Export afs to nfs clients
4162 *
4163 * \ingroup pioctl
4164 *
4165 * \param[in] ain
4166 * an integer containing the desired exportee flags
4167 * \param[out] aout
4168 * an integer containing the current exporter flags
4169 *
4170 * \retval ENODEV Error if the exporter doesn't exist
4171 * \retval EACCES Error if the user doesn't have super-user credentials
4172 *
4173 * \post
4174 * Changes the state of various values to reflect the change
4175 * of the export values between nfs and afs.
4176 *
4177 * \notes Legacy code obtained from IBM.
4178 */
4179DECL_PIOCTL(PExportAfs)static int PExportAfs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4180{
4181 afs_int32 export, newint = 0;
4182 afs_int32 type, changestate, handleValue, convmode, pwsync, smounts;
4183 afs_int32 rempags = 0, pagcb = 0;
4184 struct afs_exporter *exporter;
4185
4186 AFS_STATCNT(PExportAfs)((afs_cmstats.callInfo.C_PExportAfs)++);
4187 if (afs_pd_getInt(ain, &handleValue) != 0)
4188 return EINVAL22;
4189 type = handleValue >> 24;
4190 if (type == 0x71) {
4191 newint = 1;
4192 type = 1; /* nfs */
4193 }
4194 exporter = exporter_find(type);
4195 if (newint) {
4196 export = handleValue & 3;
4197 changestate = handleValue & 0xfff;
4198 smounts = (handleValue >> 2) & 3;
4199 pwsync = (handleValue >> 4) & 3;
4200 convmode = (handleValue >> 6) & 3;
4201 rempags = (handleValue >> 8) & 3;
4202 pagcb = (handleValue >> 10) & 3;
4203 } else {
4204 changestate = (handleValue >> 16) & 0x1;
4205 convmode = (handleValue >> 16) & 0x2;
4206 pwsync = (handleValue >> 16) & 0x4;
4207 smounts = (handleValue >> 16) & 0x8;
4208 export = handleValue & 0xff;
4209 }
4210 if (!exporter) {
4211 /* Failed finding desired exporter; */
4212 return ENODEV19;
4213 }
4214 if (!changestate) {
4215 handleValue = exporter->exp_states;
4216 if (afs_pd_putInt(aout, handleValue) != 0)
4217 return E2BIG7;
4218 } else {
4219 if (!afs_osi_suser(*acred))
4220 return EACCES13; /* Only superuser can do this */
4221 if (newint) {
4222 if (export & 2) {
4223 if (export & 1)
4224 exporter->exp_states |= EXP_EXPORTED1;
4225 else
4226 exporter->exp_states &= ~EXP_EXPORTED1;
4227 }
4228 if (convmode & 2) {
4229 if (convmode & 1)
4230 exporter->exp_states |= EXP_UNIXMODE2;
4231 else
4232 exporter->exp_states &= ~EXP_UNIXMODE2;
4233 }
4234 if (pwsync & 2) {
4235 if (pwsync & 1)
4236 exporter->exp_states |= EXP_PWSYNC4;
4237 else
4238 exporter->exp_states &= ~EXP_PWSYNC4;
4239 }
4240 if (smounts & 2) {
4241 if (smounts & 1) {
4242 afs_NFSRootOnly = 0;
4243 exporter->exp_states |= EXP_SUBMOUNTS8;
4244 } else {
4245 afs_NFSRootOnly = 1;
4246 exporter->exp_states &= ~EXP_SUBMOUNTS8;
4247 }
4248 }
4249 if (rempags & 2) {
4250 if (rempags & 1)
4251 exporter->exp_states |= EXP_CLIPAGS16;
4252 else
4253 exporter->exp_states &= ~EXP_CLIPAGS16;
4254 }
4255 if (pagcb & 2) {
4256 if (pagcb & 1)
4257 exporter->exp_states |= EXP_CALLBACK32;
4258 else
4259 exporter->exp_states &= ~EXP_CALLBACK32;
4260 }
4261 handleValue = exporter->exp_states;
4262 if (afs_pd_putInt(aout, handleValue) != 0)
4263 return E2BIG7;
4264 } else {
4265 if (export)
4266 exporter->exp_states |= EXP_EXPORTED1;
4267 else
4268 exporter->exp_states &= ~EXP_EXPORTED1;
4269 if (convmode)
4270 exporter->exp_states |= EXP_UNIXMODE2;
4271 else
4272 exporter->exp_states &= ~EXP_UNIXMODE2;
4273 if (pwsync)
4274 exporter->exp_states |= EXP_PWSYNC4;
4275 else
4276 exporter->exp_states &= ~EXP_PWSYNC4;
4277 if (smounts) {
4278 afs_NFSRootOnly = 0;
4279 exporter->exp_states |= EXP_SUBMOUNTS8;
4280 } else {
4281 afs_NFSRootOnly = 1;
4282 exporter->exp_states &= ~EXP_SUBMOUNTS8;
4283 }
4284 }
4285 }
4286
4287 return 0;
4288}
4289
4290/*!
4291 * VIOC_GAG (44) - Silence Cache Manager
4292 *
4293 * \ingroup pioctl
4294 *
4295 * \param[in] ain the flags to either gag or de-gag the cache manager
4296 * \param[out] aout not in use
4297 *
4298 * \retval EACCES Error if the user doesn't have super-user credentials
4299 *
4300 * \post set the gag flags, then show these flags
4301 */
4302DECL_PIOCTL(PGag)static int PGag(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4303{
4304 struct gaginfo *gagflags;
4305
4306 if (!afs_osi_suser(*acred))
4307 return EACCES13;
4308
4309 gagflags = afs_pd_inline(ain, sizeof(*gagflags));
4310 if (gagflags == NULL((void *)0))
4311 return EINVAL22;
4312 afs_showflags = gagflags->showflags;
4313
4314 return 0;
4315}
4316
4317/*!
4318 * VIOC_TWIDDLE (45) - Adjust RX knobs
4319 *
4320 * \ingroup pioctl
4321 *
4322 * \param[in] ain the previous settings of the 'knobs'
4323 * \param[out] aout not in use
4324 *
4325 * \retval EACCES Error if the user doesn't have super-user credentials
4326 *
4327 * \post build out the struct rxp, from a struct rx
4328 */
4329DECL_PIOCTL(PTwiddleRx)static int PTwiddleRx(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4330{
4331 struct rxparams *rxp;
4332
4333 if (!afs_osi_suser(*acred))
4334 return EACCES13;
4335
4336 rxp = afs_pd_inline(ain, sizeof(*rxp));
4337 if (rxp == NULL((void *)0))
4338 return EINVAL22;
4339
4340 if (rxp->rx_initReceiveWindow)
4341 rx_initReceiveWindow = rxp->rx_initReceiveWindow;
4342 if (rxp->rx_maxReceiveWindow)
4343 rx_maxReceiveWindow = rxp->rx_maxReceiveWindow;
4344 if (rxp->rx_initSendWindow)
4345 rx_initSendWindow = rxp->rx_initSendWindow;
4346 if (rxp->rx_maxSendWindow)
4347 rx_maxSendWindow = rxp->rx_maxSendWindow;
4348 if (rxp->rxi_nSendFrags)
4349 rxi_nSendFrags = rxp->rxi_nSendFrags;
4350 if (rxp->rxi_nRecvFrags)
4351 rxi_nRecvFrags = rxp->rxi_nRecvFrags;
4352 if (rxp->rxi_OrphanFragSize)
4353 rxi_OrphanFragSize = rxp->rxi_OrphanFragSize;
4354 if (rxp->rx_maxReceiveSize) {
4355 rx_maxReceiveSize = rxp->rx_maxReceiveSize;
4356 rx_maxReceiveSizeUser = rxp->rx_maxReceiveSize;
4357 }
4358 if (rxp->rx_MyMaxSendSize)
4359 rx_MyMaxSendSize = rxp->rx_MyMaxSendSize;
4360
4361 return 0;
4362}
4363
4364/*!
4365 * VIOC_GETINITPARAMS (49) - Get initial cache manager parameters
4366 *
4367 * \ingroup pioctl
4368 *
4369 * \param[in] ain not in use
4370 * \param[out] aout initial cache manager params
4371 *
4372 * \retval E2BIG
4373 * Error if the initial parameters are bigger than some PIGGYSIZE
4374 *
4375 * \post return the initial cache manager parameters
4376 */
4377DECL_PIOCTL(PGetInitParams)static int PGetInitParams(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
4378{
4379 if (sizeof(struct cm_initparams) > PIGGYSIZE1350)
4380 return E2BIG7;
4381
4382 return afs_pd_putBytes(aout, &cm_initParams,
4383 sizeof(struct cm_initparams));
4384}
4385
4386#ifdef AFS_SGI65_ENV
4387/* They took crget() from us, so fake it. */
4388static cred_t *
4389crget(void)
4390{
4391 cred_t *cr;
4392 cr = crdup(get_current_cred());
4393 memset(cr, 0, sizeof(cred_t));
4394#if CELL || CELL_PREPARE
4395 cr->cr_id = -1;
4396#endif
4397 return cr;
4398}
4399#endif
4400
4401/*!
4402 * VIOC_GETRXKCRYPT (55) - Get rxkad encryption flag
4403 *
4404 * \ingroup pioctl
4405 *
4406 * \param[in] ain not in use
4407 * \param[out] aout value of cryptall
4408 *
4409 * \post Turns on, or disables, rxkad encryption by setting the cryptall global
4410 */
4411DECL_PIOCTL(PGetRxkcrypt)static int PGetRxkcrypt(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4412{
4413 return afs_pd_putInt(aout, cryptall);
4414}
4415
4416/*!
4417 * VIOC_SETRXKCRYPT (56) - Set rxkad encryption flag
4418 *
4419 * \ingroup pioctl
4420 *
4421 * \param[in] ain the argument whether or not things should be encrypted
4422 * \param[out] aout not in use
4423 *
4424 * \retval EPERM
4425 * Error if the user doesn't have super-user credentials
4426 * \retval EINVAL
4427 * Error if the input is too big, or if the input is outside the
4428 * bounds of what it can be set to
4429 *
4430 * \post set whether or not things should be encrypted
4431 *
4432 * \notes
4433 * may need to be modified at a later date to take into account
4434 * other values for cryptall (beyond true or false)
4435 */
4436DECL_PIOCTL(PSetRxkcrypt)static int PSetRxkcrypt(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4437{
4438 afs_int32 tmpval;
4439
4440 if (!afs_osi_suser(*acred))
4441 return EPERM1;
4442 if (afs_pd_getInt(ain, &tmpval) != 0)
4443 return EINVAL22;
4444 /* if new mappings added later this will need to be changed */
4445 if (tmpval != 0 && tmpval != 1)
4446 return EINVAL22;
4447 cryptall = tmpval;
4448 return 0;
4449}
4450
4451#ifdef AFS_NEED_CLIENTCONTEXT
4452/*
4453 * Create new credentials to correspond to a remote user with given
4454 * <hostaddr, uid, g0, g1>. This allows a server running as root to
4455 * provide pioctl (and other) services to foreign clients (i.e. nfs
4456 * clients) by using this call to `become' the client.
4457 */
4458#define PSETPAG 110
4459#define PIOCTL_HEADER 6
4460static int
4461HandleClientContext(struct afs_ioctl *ablob, int *com,
4462 afs_ucred_t **acred, afs_ucred_t *credp)
4463{
4464 char *ain, *inData;
4465 afs_uint32 hostaddr;
4466 afs_int32 uid, g0, g1, i, code, pag, exporter_type, isroot = 0;
4467 struct afs_exporter *exporter, *outexporter;
4468 afs_ucred_t *newcred;
4469 struct unixuser *au;
4470 afs_uint32 comp = *com & 0xff00;
4471 afs_uint32 h, l;
4472#if defined(AFS_SUN510_ENV)
4473 gid_t gids[2];
4474#endif
4475
4476#if defined(AFS_SGIMP_ENV)
4477 osi_Assert(ISAFS_GLOCK())(void)((((((&afs_global_mtx)->mtx_lock & ~(0x00000001
| 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread()))))
|| (osi_AssertFailK( "ISAFS_GLOCK()" , "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4477), 0));
4478#endif
4479 AFS_STATCNT(HandleClientContext)((afs_cmstats.callInfo.C_HandleClientContext)++);
4480 if (ablob->in_size < PIOCTL_HEADER * sizeof(afs_int32)) {
4481 /* Must at least include the PIOCTL_HEADER header words
4482 * required by the protocol */
4483 return EINVAL22; /* Too small to be good */
4484 }
4485 ain = inData = osi_AllocLargeSpace(AFS_LRALLOCSIZ4096);
4486 AFS_COPYIN(ablob->in, ain, PIOCTL_HEADER * sizeof(afs_int32), code)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4486); } while (0); code = copyin(((ablob->in)),(ain),(PIOCTL_HEADER
* sizeof(afs_int32))); if (haveGlock) do { (void)0; _mtx_lock_flags
(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4486); (void)0; } while (0); } while(0);
4487 if (code) {
4488 osi_FreeLargeSpace(inData);
4489 return code;
4490 }
4491
4492 /* Extract information for remote user */
4493 hostaddr = *((afs_uint32 *) ain);
4494 ain += sizeof(hostaddr);
4495 uid = *((afs_uint32 *) ain);
4496 ain += sizeof(uid);
4497 g0 = *((afs_uint32 *) ain);
4498 ain += sizeof(g0);
4499 g1 = *((afs_uint32 *) ain);
4500 ain += sizeof(g1);
4501 *com = *((afs_uint32 *) ain);
4502 ain += sizeof(afs_int32);
4503 exporter_type = *((afs_uint32 *) ain);/* In case we support more than NFS */
4504
4505 /*
4506 * Of course, one must be root for most of these functions, but
4507 * we'll allow (for knfs) you to set things if the pag is 0 and
4508 * you're setting tokens or unlogging.
4509 */
4510 i = (*com) & 0xff;
4511 if (!afs_osi_suser(credp)) {
4512#if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
4513 /* Since SGI's suser() returns explicit failure after the call.. */
4514 u.u_error = 0;
4515#endif
4516 /* check for acceptable opcodes for normal folks, which are, so far,
4517 * get/set tokens, sysname, and unlog.
4518 */
4519 if (i != 9 && i != 3 && i != 38 && i != 8) {
4520 osi_FreeLargeSpace(inData);
4521 return EACCES13;
4522 }
4523 }
4524
4525 ablob->in_size -= PIOCTL_HEADER * sizeof(afs_int32);
4526 ablob->in += PIOCTL_HEADER * sizeof(afs_int32);
4527 osi_FreeLargeSpace(inData);
4528 if (uid == 0) {
4529 /*
4530 * We map uid 0 to nobody to match the mapping that the nfs
4531 * server does and to ensure that the suser() calls in the afs
4532 * code fails for remote client roots.
4533 */
4534 uid = afs_nobody; /* NFS_NOBODY == -2 */
4535 isroot = 1;
4536 }
4537 newcred = crget();
4538#ifdef AFS_AIX41_ENV
4539 setuerror(0)u.u_error = (0);
4540#endif
4541 afs_set_cr_gid(newcred, isroot ? RMTUSER_REQ_PRIV0xabe : RMTUSER_REQ0xabc);
4542#ifdef AFS_AIX51_ENV
4543 newcred->cr_groupset.gs_union.un_groups[0] = g0;
4544 newcred->cr_groupset.gs_union.un_groups[1] = g1;
4545#elif defined(AFS_LINUX26_ENV)
4546# ifdef AFS_LINUX26_ONEGROUP_ENV
4547 afs_set_cr_group_info(newcred, groups_alloc(1)); /* nothing sets this */
4548 l = (((g0-0x3f00) & 0x3fff) << 14) | ((g1-0x3f00) & 0x3fff);
4549 h = ((g0-0x3f00) >> 14);
4550 h = ((g1-0x3f00) >> 14) + h + h + h;
4551 GROUP_AT(afs_cr_group_info(newcred), 0) = ((h << 28) | l);
4552# else
4553 afs_set_cr_group_info(newcred, groups_alloc(2));
4554 GROUP_AT(afs_cr_group_info(newcred), 0) = g0;
4555 GROUP_AT(afs_cr_group_info(newcred), 1) = g1;
4556# endif
4557#elif defined(AFS_SUN510_ENV)
4558 gids[0] = g0;
4559 gids[1] = g1;
4560 crsetgroups(newcred, 2, gids);
4561#else
4562 newcred->cr_groups[0] = g0;
4563 newcred->cr_groups[1] = g1;
4564#endif
4565#ifdef AFS_AIX_ENV
4566 newcred->cr_ngrps = 2;
4567#elif !defined(AFS_LINUX26_ENV) && !defined(AFS_SUN510_ENV)
4568# if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_LINUX22_ENV) || defined(AFS_FBSD80_ENV1)
4569 newcred->cr_ngroups = 2;
4570# else
4571 for (i = 2; i < NGROUPS(1023 +1); i++)
4572 newcred->cr_groups[i] = NOGROUP65535;
4573# endif
4574#endif
4575 if (!(exporter = exporter_find(exporter_type))) {
4576 /* Exporter wasn't initialized or an invalid exporter type */
4577 crfree(newcred);
4578 return EINVAL22;
4579 }
4580 if (exporter->exp_states & EXP_PWSYNC4) {
4581 if (uid != afs_cr_uid(credp)((credp)->cr_uid)) {
4582 crfree(newcred);
4583 return ENOEXEC8; /* XXX Find a better errno XXX */
4584 }
4585 }
4586 afs_set_cr_uid(newcred, uid); /* Only temporary */
4587 code = EXP_REQHANDLER(exporter, &newcred, hostaddr, &pag, &outexporter)(*(exporter)->exp_op->export_reqhandler)(exporter, &
newcred, hostaddr, &pag, &outexporter);
4588 /* The client's pag is the only unique identifier for it */
4589 afs_set_cr_uid(newcred, pag);
4590 *acred = newcred;
4591 if (!code && *com == PSETPAG) {
4592 /* Special case for 'setpag' */
4593 afs_uint32 pagvalue = genpag();
4594
4595 au = afs_GetUser(pagvalue, -1, WRITE_LOCK2); /* a new unixuser struct */
4596 /*
4597 * Note that we leave the 'outexporter' struct held so it won't
4598 * dissappear on us
4599 */
4600 au->exporter = outexporter;
4601 if (ablob->out_size >= 4) {
4602 AFS_COPYOUT((char *)&pagvalue, ablob->out, sizeof(afs_int32),do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4603); } while (0); code = copyout(((char *)&pagvalue),
((ablob->out)),(sizeof(afs_int32))); if (haveGlock) do { (
void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4603); (void)0; } while (0); } while(0)
4603 code)do { int haveGlock = ((((&afs_global_mtx)->mtx_lock &
~(0x00000001 | 0x00000002 | 0x00000004)) == (uintptr_t)(__curthread
()))); if (haveGlock) do { (void)0; _mtx_unlock_flags(((&
afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4603); } while (0); code = copyout(((char *)&pagvalue),
((ablob->out)),(sizeof(afs_int32))); if (haveGlock) do { (
void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4603); (void)0; } while (0); } while(0);
4604 }
4605 afs_PutUser(au, WRITE_LOCK2);
4606 if (code)
4607 return code;
4608 return PSETPAG; /* Special return for setpag */
4609 } else if (!code) {
4610 EXP_RELE(outexporter)(*(outexporter)->exp_op->export_rele)(outexporter);
4611 }
4612 if (!code)
4613 *com = (*com) | comp;
4614 return code;
4615}
4616#endif /* AFS_NEED_CLIENTCONTEXT */
4617
4618
4619/*!
4620 * VIOC_GETCPREFS (50) - Get client interface
4621 *
4622 * \ingroup pioctl
4623 *
4624 * \param[in] ain sprefrequest input
4625 * \param[out] aout spref information
4626 *
4627 * \retval EIO Error if the afs daemon hasn't started yet
4628 * \retval EINVAL Error if some of the standard args aren't set
4629 *
4630 * \post
4631 * get all interface addresses and other information of the client
4632 * interface
4633 */
4634DECL_PIOCTL(PGetCPrefs)static int PGetCPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4635{
4636 struct sprefrequest *spin; /* input */
4637 struct sprefinfo *spout; /* output */
4638 struct spref *srvout; /* one output component */
4639 int maxNumber;
4640 int i, j;
4641
4642 AFS_STATCNT(PGetCPrefs)((afs_cmstats.callInfo.C_PGetCPrefs)++);
4643 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4644 return EIO5; /* Inappropriate ioctl for device */
4645
4646 spin = afs_pd_inline(ain, sizeof(*spin));
4647 if (spin == NULL((void *)0))
4648 return EINVAL22;
4649
4650 /* Output spout relies on writing past the end of arrays. It's horrible,
4651 * but I'm not quite brave enough to tackle it yet */
4652 spout = (struct sprefinfo *)aout->ptr;
4653
4654 maxNumber = spin->num_servers; /* max addrs this time */
4655 srvout = spout->servers;
4656
4657 ObtainReadLock(&afs_xinterface)do { ; if (!((&afs_xinterface)->excl_locked & 2)) (
(&afs_xinterface)->readers_reading)++; else Afs_Lock_Obtain
(&afs_xinterface, 1); (&afs_xinterface)->pid_last_reader
= (((__curthread())->td_proc)->p_pid ); } while (0);
4658
4659 /* copy out the client interface information from the
4660 * kernel data structure "interface" to the output buffer
4661 */
4662 for (i = spin->offset, j = 0; (i < afs_cb_interface.numberOfInterfaces)
4663 && (j < maxNumber); i++, j++, srvout++)
4664 srvout->host.s_addr = afs_cb_interface.addr_in[i];
4665
4666 spout->num_servers = j;
4667 aout->ptr += sizeof(struct sprefinfo) + (j - 1) * sizeof(struct spref);
4668
4669 if (i >= afs_cb_interface.numberOfInterfaces)
4670 spout->next_offset = 0; /* start from beginning again */
4671 else
4672 spout->next_offset = spin->offset + j;
4673
4674 ReleaseReadLock(&afs_xinterface)do { ; if (!(--((&afs_xinterface)->readers_reading)) &&
(&afs_xinterface)->wait_states) Afs_Lock_ReleaseW(&
afs_xinterface) ; if ( (&afs_xinterface)->pid_last_reader
== (((__curthread())->td_proc)->p_pid ) ) (&afs_xinterface
)->pid_last_reader =0; } while (0);
4675 return 0;
4676}
4677
4678/*!
4679 * VIOC_SETCPREFS (51) - Set client interface
4680 *
4681 * \ingroup pioctl
4682 *
4683 * \param[in] ain the interfaces you want set
4684 * \param[out] aout not in use
4685 *
4686 * \retval EIO Error if the afs daemon hasn't started yet
4687 * \retval EINVAL Error if the input is too large for the struct
4688 * \retval ENOMEM Error if there are too many servers
4689 *
4690 * \post set the callbak interfaces addresses to those of the hosts
4691 */
4692DECL_PIOCTL(PSetCPrefs)static int PSetCPrefs(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4693{
4694 char *ainPtr;
4695 size_t ainSize;
4696 struct setspref *sin;
4697 int i;
4698
4699 AFS_STATCNT(PSetCPrefs)((afs_cmstats.callInfo.C_PSetCPrefs)++);
4700 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
4701 return EIO5; /* Inappropriate ioctl for device */
4702
4703 /* Yuck. Input to this function relies on reading past the end of
4704 * structures. Bodge it for now.
4705 */
4706 ainPtr = ain->ptr;
4707 ainSize = ain->remaining;
4708
4709 sin = (struct setspref *)ainPtr;
4710
4711 if (ainSize < sizeof(struct setspref))
4712 return EINVAL22;
4713#if 0 /* num_servers is unsigned */
4714 if (sin->num_servers < 0)
4715 return EINVAL22;
4716#endif
4717 if (sin->num_servers > AFS_MAX_INTERFACE_ADDR32)
4718 return ENOMEM12;
4719
4720 ObtainWriteLock(&afs_xinterface, 412)do { ; if (!(&afs_xinterface)->excl_locked && !
(&afs_xinterface)->readers_reading) (&afs_xinterface
) -> excl_locked = 2; else Afs_Lock_Obtain(&afs_xinterface
, 2); (&afs_xinterface)->pid_writer = (((__curthread()
)->td_proc)->p_pid ); (&afs_xinterface)->src_indicator
= 412; } while (0);
4721 afs_cb_interface.numberOfInterfaces = sin->num_servers;
4722 for (i = 0; (unsigned short)i < sin->num_servers; i++)
4723 afs_cb_interface.addr_in[i] = sin->servers[i].host.s_addr;
4724
4725 ReleaseWriteLock(&afs_xinterface)do { ; (&afs_xinterface)->excl_locked &= ~2; if ((
&afs_xinterface)->wait_states) Afs_Lock_ReleaseR(&
afs_xinterface); (&afs_xinterface)->pid_writer=0; } while
(0);
4726 return 0;
4727}
4728
4729/*!
4730 * VIOC_AFS_FLUSHMOUNT (52) - Flush mount symlink data
4731 *
4732 * \ingroup pioctl
4733 *
4734 * \param[in] ain
4735 * the last part of a path to a mount point, which tells us what to flush
4736 * \param[out] aout
4737 * not in use
4738 *
4739 * \retval EINVAL
4740 * Error if some of the initial arguments aren't set
4741 * \retval ENOTDIR
4742 * Error if the initial argument for the mount point isn't a directory
4743 * \retval ENOENT
4744 * Error if the dcache entry isn't set
4745 *
4746 * \post
4747 * remove all of the mount data from the dcache regarding a
4748 * certain mount point
4749 */
4750DECL_PIOCTL(PFlushMount)static int PFlushMount(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4751{
4752 afs_int32 code;
4753 struct vcache *tvc;
4754 struct dcache *tdc;
4755 struct VenusFid tfid;
4756 char *bufp;
4757 char *mount;
4758 struct sysname_info sysState;
4759 afs_size_t offset, len;
4760
4761 AFS_STATCNT(PFlushMount)((afs_cmstats.callInfo.C_PFlushMount)++);
4762 if (!avc)
4763 return EINVAL22;
4764
4765 if (afs_pd_getStringPtr(ain, &mount) != 0)
4766 return EINVAL22;
4767
4768 code = afs_VerifyVCache(avc, areq)(((avc)->f.states & 0x00000001) ? 0 : afs_VerifyVCache2
((avc),areq));
4769 if (code)
4770 return code;
4771 if (vType(avc)((avc)->v)->v_type != VDIR) {
4772 return ENOTDIR20;
4773 }
4774 tdc = afs_GetDCache(avc, (afs_size_t) 0, areq, &offset, &len, 1);
4775 if (!tdc)
4776 return ENOENT2;
4777 Check_AtSys(avc, mount, &sysState, areq);
4778 ObtainReadLock(&tdc->lock)do { ; if (!((&tdc->lock)->excl_locked & 2)) ((
&tdc->lock)->readers_reading)++; else Afs_Lock_Obtain
(&tdc->lock, 1); (&tdc->lock)->pid_last_reader
= (((__curthread())->td_proc)->p_pid ); } while (0);
4779 do {
4780 code = afs_dir_Lookup(tdc, sysState.name, &tfid.Fid);
4781 } while (code == ENOENT2 && Next_AtSys(avc, areq, &sysState));
4782 ReleaseReadLock(&tdc->lock)do { ; if (!(--((&tdc->lock)->readers_reading)) &&
(&tdc->lock)->wait_states) Afs_Lock_ReleaseW(&
tdc->lock) ; if ( (&tdc->lock)->pid_last_reader ==
(((__curthread())->td_proc)->p_pid ) ) (&tdc->lock
)->pid_last_reader =0; } while (0);
4783 afs_PutDCache(tdc); /* we're done with the data */
4784 bufp = sysState.name;
4785 if (code) {
4786 goto out;
4787 }
4788 tfid.Cell = avc->f.fid.Cell;
4789 tfid.Fid.Volume = avc->f.fid.Fid.Volume;
4790 if (!tfid.Fid.Unique && (avc->f.states & CForeign0x00002000)) {
4791 tvc = afs_LookupVCache(&tfid, areq, NULL((void *)0), avc, bufp);
4792 } else {
4793 tvc = afs_GetVCache(&tfid, areq, NULL((void *)0), NULL((void *)0));
4794 }
4795 if (!tvc) {
4796 code = ENOENT2;
4797 goto out;
4798 }
4799 if (tvc->mvstat != 1) {
4800 afs_PutVCache(tvc);
4801 code = EINVAL22;
4802 goto out;
4803 }
4804#ifdef AFS_BOZONLOCK_ENV
4805 afs_BozonLock(&tvc->pvnLock, tvc); /* Since afs_TryToSmush will do a pvn_vptrunc */
4806#endif
4807 ObtainWriteLock(&tvc->lock, 649)do { ; if (!(&tvc->lock)->excl_locked && !(
&tvc->lock)->readers_reading) (&tvc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&tvc->lock, 2);
(&tvc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&tvc->lock)->src_indicator = 649; }
while (0);
4808 ObtainWriteLock(&afs_xcbhash, 650)do { ; if (!(&afs_xcbhash)->excl_locked && !(&
afs_xcbhash)->readers_reading) (&afs_xcbhash) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xcbhash, 2); (&afs_xcbhash
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xcbhash)->src_indicator = 650; } while (0);
4809 afs_DequeueCallback(tvc);
4810 tvc->f.states &= ~(CStatd0x00000001 | CDirty0x00000020); /* next reference will re-stat cache entry */
4811 ReleaseWriteLock(&afs_xcbhash)do { ; (&afs_xcbhash)->excl_locked &= ~2; if ((&
afs_xcbhash)->wait_states) Afs_Lock_ReleaseR(&afs_xcbhash
); (&afs_xcbhash)->pid_writer=0; } while (0);
4812 /* now find the disk cache entries */
4813 afs_TryToSmush(tvc, *acred, 1);
4814 osi_dnlc_purgedp(tvc);
4815 if (tvc->linkData && !(tvc->f.states & CCore0x00000010)) {
4816 afs_osi_Free(tvc->linkData, strlen(tvc->linkData) + 1);
4817 tvc->linkData = NULL((void *)0);
4818 }
4819 ReleaseWriteLock(&tvc->lock)do { ; (&tvc->lock)->excl_locked &= ~2; if ((&
tvc->lock)->wait_states) Afs_Lock_ReleaseR(&tvc->
lock); (&tvc->lock)->pid_writer=0; } while (0);
4820#ifdef AFS_BOZONLOCK_ENV
4821 afs_BozonUnlock(&tvc->pvnLock, tvc);
4822#endif
4823 afs_PutVCache(tvc);
4824 out:
4825 if (sysState.allocked)
4826 osi_FreeLargeSpace(bufp);
4827 return code;
4828}
4829
4830/*!
4831 * VIOC_RXSTAT_PROC (53) - Control process RX statistics
4832 *
4833 * \ingroup pioctl
4834 *
4835 * \param[in] ain the flags that control which stats to use
4836 * \param[out] aout not in use
4837 *
4838 * \retval EACCES Error if the user doesn't have super-user credentials
4839 * \retval EINVAL Error if the flag input is too long
4840 *
4841 * \post
4842 * either enable process RPCStats, disable process RPCStats,
4843 * or clear the process RPCStats
4844 */
4845DECL_PIOCTL(PRxStatProc)static int PRxStatProc(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4846{
4847 afs_int32 flags;
4848
4849 if (!afs_osi_suser(*acred))
4850 return EACCES13;
4851
4852 if (afs_pd_getInt(ain, &flags) != 0)
4853 return EINVAL22;
4854
4855 if (!(flags & AFSCALL_RXSTATS_MASK0x7) || (flags & ~AFSCALL_RXSTATS_MASK0x7))
4856 return EINVAL22;
4857
4858 if (flags & AFSCALL_RXSTATS_ENABLE0x1) {
4859 rx_enableProcessRPCStats();
4860 }
4861 if (flags & AFSCALL_RXSTATS_DISABLE0x2) {
4862 rx_disableProcessRPCStats();
4863 }
4864 if (flags & AFSCALL_RXSTATS_CLEAR0x4) {
4865 rx_clearProcessRPCStats(AFS_RX_STATS_CLEAR_ALL0xffffffff);
4866 }
4867 return 0;
4868}
4869
4870
4871/*!
4872 * VIOC_RXSTAT_PEER (54) - Control peer RX statistics
4873 *
4874 * \ingroup pioctl
4875 *
4876 * \param[in] ain the flags that control which statistics to use
4877 * \param[out] aout not in use
4878 *
4879 * \retval EACCES Error if the user doesn't have super-user credentials
4880 * \retval EINVAL Error if the flag input is too long
4881 *
4882 * \post
4883 * either enable peer RPCStatws, disable peer RPCStats,
4884 * or clear the peer RPCStats
4885 */
4886DECL_PIOCTL(PRxStatPeer)static int PRxStatPeer(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4887{
4888 afs_int32 flags;
4889
4890 if (!afs_osi_suser(*acred))
4891 return EACCES13;
4892
4893 if (afs_pd_getInt(ain, &flags) != 0)
4894 return EINVAL22;
4895
4896 if (!(flags & AFSCALL_RXSTATS_MASK0x7) || (flags & ~AFSCALL_RXSTATS_MASK0x7))
4897 return EINVAL22;
4898
4899 if (flags & AFSCALL_RXSTATS_ENABLE0x1) {
4900 rx_enablePeerRPCStats();
4901 }
4902 if (flags & AFSCALL_RXSTATS_DISABLE0x2) {
4903 rx_disablePeerRPCStats();
4904 }
4905 if (flags & AFSCALL_RXSTATS_CLEAR0x4) {
4906 rx_clearPeerRPCStats(AFS_RX_STATS_CLEAR_ALL0xffffffff);
4907 }
4908 return 0;
4909}
4910
4911DECL_PIOCTL(PPrefetchFromTape)static int PPrefetchFromTape(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
4912{
4913 afs_int32 code;
4914 afs_int32 outval;
4915 struct afs_conn *tc;
4916 struct rx_call *tcall;
4917 struct AFSVolSync tsync;
4918 struct AFSFetchStatus OutStatus;
4919 struct AFSCallBack CallBack;
4920 struct VenusFid tfid;
4921 struct AFSFid *Fid;
4922 struct vcache *tvc;
4923 struct rx_connection *rxconn;
4924
4925 AFS_STATCNT(PPrefetchFromTape)((afs_cmstats.callInfo.C_PPrefetchFromTape)++);
4926 if (!avc)
4927 return EINVAL22;
4928
4929 Fid = afs_pd_inline(ain, sizeof(struct AFSFid));
4930 if (Fid == NULL((void *)0))
4931 Fid = &avc->f.fid.Fid;
4932
4933 tfid.Cell = avc->f.fid.Cell;
4934 tfid.Fid.Volume = Fid->Volume;
4935 tfid.Fid.Vnode = Fid->Vnode;
4936 tfid.Fid.Unique = Fid->Unique;
4937
4938 tvc = afs_GetVCache(&tfid, areq, NULL((void *)0), NULL((void *)0));
4939 if (!tvc) {
4940 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087883L), (1<<24)+((2)
<<18)+((5)<<12)+((5)<<6), (long)(tvc), (long
)(&tfid), (long)(&avc->f.fid)) : 0)
4941 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &avc->f.fid)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087883L), (1<<24)+((2)
<<18)+((5)<<12)+((5)<<6), (long)(tvc), (long
)(&tfid), (long)(&avc->f.fid)) : 0);
4942 return ENOENT2;
4943 }
4944 afs_Trace3(afs_iclSetp, CM_TRACE_PREFETCHCMD, ICL_TYPE_POINTER, tvc,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087883L), (1<<24)+((2)
<<18)+((5)<<12)+((5)<<6), (long)(tvc), (long
)(&tfid), (long)(&tvc->f.fid)) : 0)
4945 ICL_TYPE_FID, &tfid, ICL_TYPE_FID, &tvc->f.fid)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087883L), (1<<24)+((2)
<<18)+((5)<<12)+((5)<<6), (long)(tvc), (long
)(&tfid), (long)(&tvc->f.fid)) : 0);
4946
4947 do {
4948 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK4, &rxconn);
4949 if (tc) {
4950
4951 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 4951); } while
(0);
4952 tcall = rx_NewCall(rxconn);
4953 code =
4954 StartRXAFS_FetchData(tcall, (struct AFSFid *)&tvc->f.fid.Fid, 0,
4955 0);
4956 if (!code) {
4957 rx_Read(tcall, (char *)&outval, sizeof(afs_int32))rx_ReadProc(tcall, (char *)&outval, sizeof(afs_int32));
4958 code =
4959 EndRXAFS_FetchData(tcall, &OutStatus, &CallBack, &tsync);
4960 }
4961 code = rx_EndCall(tcall, code);
4962 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 4962); (void)0; } while (0);
4963 } else
4964 code = -1;
4965 } while (afs_Analyze
4966 (tc, rxconn, code, &tvc->f.fid, areq, AFS_STATS_FS_RPCIDX_RESIDENCYRPCS29,
4967 SHARED_LOCK4, NULL((void *)0)));
4968 /* This call is done only to have the callback things handled correctly */
4969 afs_FetchStatus(tvc, &tfid, areq, &OutStatus);
4970 afs_PutVCache(tvc);
4971
4972 if (code)
4973 return code;
4974
4975 return afs_pd_putInt(aout, outval);
4976}
4977
4978DECL_PIOCTL(PFsCmd)static int PFsCmd(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
4979{
4980 afs_int32 code;
4981 struct afs_conn *tc;
4982 struct vcache *tvc;
4983 struct FsCmdInputs *Inputs;
4984 struct FsCmdOutputs *Outputs;
4985 struct VenusFid tfid;
4986 struct AFSFid *Fid;
4987 struct rx_connection *rxconn;
4988
4989 if (!avc)
4990 return EINVAL22;
4991
4992 Inputs = afs_pd_inline(ain, sizeof(*Inputs));
4993 if (Inputs == NULL((void *)0))
4994 return EINVAL22;
4995
4996 Outputs = afs_pd_inline(aout, sizeof(*Outputs));
4997 if (Outputs == NULL((void *)0))
4998 return E2BIG7;
4999
5000 Fid = &Inputs->fid;
5001 if (!Fid->Volume)
5002 Fid = &avc->f.fid.Fid;
5003
5004 tfid.Cell = avc->f.fid.Cell;
5005 tfid.Fid.Volume = Fid->Volume;
5006 tfid.Fid.Vnode = Fid->Vnode;
5007 tfid.Fid.Unique = Fid->Unique;
5008
5009 tvc = afs_GetVCache(&tfid, areq, NULL((void *)0), NULL((void *)0));
5010 afs_Trace3(afs_iclSetp, CM_TRACE_RESIDCMD, ICL_TYPE_POINTER, tvc,(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087882L), (1<<24)+((2)
<<18)+((7)<<12)+((5)<<6), (long)(tvc), (long
)(Inputs->command), (long)(&tfid)) : 0)
5011 ICL_TYPE_INT32, Inputs->command, ICL_TYPE_FID, &tfid)(((afs_iclSetp) && (afs_iclSetp->states & 2)) ?
afs_icl_Event3(afs_iclSetp, (701087882L), (1<<24)+((2)
<<18)+((7)<<12)+((5)<<6), (long)(tvc), (long
)(Inputs->command), (long)(&tfid)) : 0);
5012 if (!tvc)
5013 return ENOENT2;
5014
5015 if (Inputs->command) {
5016 do {
5017 tc = afs_Conn(&tvc->f.fid, areq, SHARED_LOCK4, &rxconn);
5018 if (tc) {
5019 RX_AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 5019); } while
(0);
5020 code =
5021 RXAFS_FsCmd(rxconn, Fid, Inputs,
5022 (struct FsCmdOutputs *)aout);
5023 RX_AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 5023); (void)0; } while (0);
5024 } else
5025 code = -1;
5026 } while (afs_Analyze
5027 (tc, rxconn, code, &tvc->f.fid, areq,
5028 AFS_STATS_FS_RPCIDX_RESIDENCYRPCS29, SHARED_LOCK4, NULL((void *)0)));
5029 /* This call is done to have the callback things handled correctly */
5030 afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5031 } else { /* just a status request, return also link data */
5032 code = 0;
5033 Outputs->code = afs_FetchStatus(tvc, &tfid, areq, &Outputs->status);
5034 Outputs->chars[0] = 0;
5035 if (vType(tvc)((tvc)->v)->v_type == VLNK) {
5036 ObtainWriteLock(&tvc->lock, 555)do { ; if (!(&tvc->lock)->excl_locked && !(
&tvc->lock)->readers_reading) (&tvc->lock) ->
excl_locked = 2; else Afs_Lock_Obtain(&tvc->lock, 2);
(&tvc->lock)->pid_writer = (((__curthread())->td_proc
)->p_pid ); (&tvc->lock)->src_indicator = 555; }
while (0);
5037 if (afs_HandleLink(tvc, areq)(*(afs_cacheType->HandleLink))(tvc, areq) == 0)
5038 strncpy((char *)&Outputs->chars, tvc->linkData, MAXCMDCHARS256);
5039 ReleaseWriteLock(&tvc->lock)do { ; (&tvc->lock)->excl_locked &= ~2; if ((&
tvc->lock)->wait_states) Afs_Lock_ReleaseR(&tvc->
lock); (&tvc->lock)->pid_writer=0; } while (0);
5040 }
5041 }
5042
5043 afs_PutVCache(tvc);
5044
5045 return code;
5046}
5047
5048DECL_PIOCTL(PNewUuid)static int PNewUuid(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
5049{
5050 /*AFS_STATCNT(PNewUuid); */
5051 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5052 return EIO5; /* Inappropriate ioctl for device */
5053
5054 if (!afs_osi_suser(*acred))
5055 return EACCES13;
5056
5057 ObtainWriteLock(&afs_xinterface, 555)do { ; if (!(&afs_xinterface)->excl_locked && !
(&afs_xinterface)->readers_reading) (&afs_xinterface
) -> excl_locked = 2; else Afs_Lock_Obtain(&afs_xinterface
, 2); (&afs_xinterface)->pid_writer = (((__curthread()
)->td_proc)->p_pid ); (&afs_xinterface)->src_indicator
= 555; } while (0);
5058 afs_uuid_create(&afs_cb_interface.uuid);
5059 ReleaseWriteLock(&afs_xinterface)do { ; (&afs_xinterface)->excl_locked &= ~2; if ((
&afs_xinterface)->wait_states) Afs_Lock_ReleaseR(&
afs_xinterface); (&afs_xinterface)->pid_writer=0; } while
(0);
5060 ForceAllNewConnections();
5061 return 0;
5062}
5063
5064#if defined(AFS_CACHE_BYPASS) && defined(AFS_LINUX24_ENV)
5065
5066DECL_PIOCTL(PSetCachingThreshold)static int PSetCachingThreshold(struct vcache *avc, int afun,
struct vrequest *areq, struct afs_pdata *ain, struct afs_pdata
*aout, afs_ucred_t **acred)
5067{
5068 afs_int32 getting = 1;
5069 afs_int32 setting = 1;
5070 afs_int32 threshold = AFS_CACHE_BYPASS_DISABLED;
5071
5072 if (afs_pd_getInt(ain, &threshold) != 0)
5073 setting = 0;
5074
5075 if (aout == NULL((void *)0))
5076 getting = 0;
5077
5078 if (setting == 0 && getting == 0)
5079 return EINVAL22;
5080
5081 /*
5082 * If setting, set first, and return the value now in effect
5083 */
5084 if (setting) {
5085 if (!afs_osi_suser(*acred))
5086 return EPERM1;
5087 cache_bypass_threshold = threshold;
5088 afs_warn("Cache Bypass Threshold set to: %d\n", threshold);
5089 /* TODO: move to separate pioctl, or enhance pioctl */
5090 cache_bypass_strategy = LARGE_FILES_BYPASS_CACHE;
5091 }
5092
5093 /* Return the current size threshold */
5094 if (getting)
5095 return afs_pd_putInt(aout, cache_bypass_threshold);
5096
5097 return(0);
5098}
5099
5100#endif /* defined(AFS_CACHE_BYPASS) */
5101
5102DECL_PIOCTL(PCallBackAddr)static int PCallBackAddr(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
5103{
5104#ifndef UKERNEL
5105 afs_uint32 addr, code;
5106 int srvAddrCount;
5107 struct server *ts;
5108 struct srvAddr *sa;
5109 struct afs_conn *tc;
5110 afs_int32 i, j;
5111 struct unixuser *tu;
5112 struct srvAddr **addrs;
5113 struct rx_connection *rxconn;
5114
5115 /*AFS_STATCNT(PCallBackAddr); */
5116 if (!afs_resourceinit_flag) /* afs deamons havn't started yet */
5117 return EIO5; /* Inappropriate ioctl for device */
5118
5119 if (!afs_osi_suser(acred))
5120 return EACCES13;
5121
5122 if (afs_pd_getInt(ain, &addr) != 0)
5123 return EINVAL22;
5124
5125 ObtainReadLock(&afs_xinterface)do { ; if (!((&afs_xinterface)->excl_locked & 2)) (
(&afs_xinterface)->readers_reading)++; else Afs_Lock_Obtain
(&afs_xinterface, 1); (&afs_xinterface)->pid_last_reader
= (((__curthread())->td_proc)->p_pid ); } while (0);
5126 for (i = 0; (unsigned short)i < afs_cb_interface.numberOfInterfaces; i++) {
5127 if (afs_cb_interface.addr_in[i] == addr)
5128 break;
5129 }
5130
5131 ReleaseWriteLock(&afs_xinterface)do { ; (&afs_xinterface)->excl_locked &= ~2; if ((
&afs_xinterface)->wait_states) Afs_Lock_ReleaseR(&
afs_xinterface); (&afs_xinterface)->pid_writer=0; } while
(0);
5132
5133 if (afs_cb_interface.addr_in[i] != addr)
5134 return EINVAL22;
5135
5136 ObtainReadLock(&afs_xserver)do { ; if (!((&afs_xserver)->excl_locked & 2)) ((&
afs_xserver)->readers_reading)++; else Afs_Lock_Obtain(&
afs_xserver, 1); (&afs_xserver)->pid_last_reader = (((
__curthread())->td_proc)->p_pid ); } while (0); /* Necessary? */
5137 ObtainReadLock(&afs_xsrvAddr)do { ; if (!((&afs_xsrvAddr)->excl_locked & 2)) ((
&afs_xsrvAddr)->readers_reading)++; else Afs_Lock_Obtain
(&afs_xsrvAddr, 1); (&afs_xsrvAddr)->pid_last_reader
= (((__curthread())->td_proc)->p_pid ); } while (0);
5138
5139 srvAddrCount = 0;
5140 for (i = 0; i < NSERVERS16; i++) {
5141 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5142 srvAddrCount++;
5143 }
5144 }
5145
5146 addrs = afs_osi_Alloc(srvAddrCount * sizeof(*addrs));
5147 osi_Assert(addrs != NULL)(void)((addrs != ((void *)0)) || (osi_AssertFailK( "addrs != NULL"
, "/home/wollman/openafs/src/afs/afs_pioctl.c", 5147), 0));
5148 j = 0;
5149 for (i = 0; i < NSERVERS16; i++) {
5150 for (sa = afs_srvAddrs[i]; sa; sa = sa->next_bkt) {
5151 if (j >= srvAddrCount)
5152 break;
5153 addrs[j++] = sa;
5154 }
5155 }
5156
5157 ReleaseReadLock(&afs_xsrvAddr)do { ; if (!(--((&afs_xsrvAddr)->readers_reading)) &&
(&afs_xsrvAddr)->wait_states) Afs_Lock_ReleaseW(&
afs_xsrvAddr) ; if ( (&afs_xsrvAddr)->pid_last_reader ==
(((__curthread())->td_proc)->p_pid ) ) (&afs_xsrvAddr
)->pid_last_reader =0; } while (0);
5158 ReleaseReadLock(&afs_xserver)do { ; if (!(--((&afs_xserver)->readers_reading)) &&
(&afs_xserver)->wait_states) Afs_Lock_ReleaseW(&afs_xserver
) ; if ( (&afs_xserver)->pid_last_reader == (((__curthread
())->td_proc)->p_pid ) ) (&afs_xserver)->pid_last_reader
=0; } while (0);
5159
5160 for (i = 0; i < j; i++) {
5161 sa = addrs[i];
5162 ts = sa->server;
5163 if (!ts)
5164 continue;
5165
5166 /* vlserver has no callback conn */
5167 if (sa->sa_portal == AFS_VLPORT((unsigned short) (__builtin_constant_p(7003) ? (__uint16_t)(
((__uint16_t)(7003)) << 8 | ((__uint16_t)(7003)) >>
8) : __bswap16_var(7003)))) {
5168 continue;
5169 }
5170
5171 if (!ts->cell) /* not really an active server, anyway, it must */
5172 continue; /* have just been added by setsprefs */
5173
5174 /* get a connection, even if host is down; bumps conn ref count */
5175 tu = afs_GetUser(areq->uid, ts->cell->cellNum, SHARED_LOCK4);
5176 tc = afs_ConnBySA(sa, ts->cell->fsport, ts->cell->cellNum, tu,
5177 1 /*force */ , 1 /*create */ , SHARED_LOCK4, &rxconn);
5178 afs_PutUser(tu, SHARED_LOCK4);
5179 if (!tc)
5180 continue;
5181
5182 if ((sa->sa_flags & SRVADDR_ISDOWN0x20) || afs_HaveCallBacksFrom(ts)) {
5183 if (sa->sa_flags & SRVADDR_ISDOWN0x20) {
5184 rx_SetConnDeadTime(rxconn, 3);
5185 }
5186#ifdef RX_ENABLE_LOCKS1
5187 AFS_GUNLOCK()do { (void)0; _mtx_unlock_flags(((&afs_global_mtx)), (0),
"/home/wollman/openafs/src/afs/afs_pioctl.c", 5187); } while
(0);
5188#endif /* RX_ENABLE_LOCKS */
5189 code = RXAFS_CallBackRxConnAddr(rxconn, &addr);
Value stored to 'code' is never read
5190#ifdef RX_ENABLE_LOCKS1
5191 AFS_GLOCK()do { (void)0; _mtx_lock_flags(((&afs_global_mtx)), (0), "/home/wollman/openafs/src/afs/afs_pioctl.c"
, 5191); (void)0; } while (0);
5192#endif /* RX_ENABLE_LOCKS */
5193 }
5194 afs_PutConn(tc, rxconn, SHARED_LOCK4); /* done with it now */
5195 } /* Outer loop over addrs */
5196#endif /* UKERNEL */
5197 return 0;
5198}
5199
5200DECL_PIOCTL(PDiscon)static int PDiscon(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
5201{
5202 static afs_int32 mode = 1; /* Start up in 'off' */
5203 afs_int32 force = 0;
5204 int code = 0;
5205 char flags[4];
5206 struct vrequest lreq;
5207
5208 if (afs_pd_getBytes(ain, &flags, 4) == 0) {
5209 if (!afs_osi_suser(*acred))
5210 return EPERM1;
5211
5212 if (flags[0])
5213 mode = flags[0] - 1;
5214 if (flags[1])
5215 afs_ConflictPolicy = flags[1] - 1;
5216 if (flags[2])
5217 force = 1;
5218 if (flags[3]) {
5219 /* Fake InitReq support for UID override */
5220 memset(&lreq, 0, sizeof(lreq));
5221 lreq.uid = flags[3];
5222 areq = &lreq; /* override areq we got */
5223 }
5224
5225 /*
5226 * All of these numbers are hard coded in fs.c. If they
5227 * change here, they should change there and vice versa
5228 */
5229 switch (mode) {
5230 case 0: /* Disconnect ("offline" mode), breaking all callbacks */
5231 if (!AFS_IS_DISCONNECTED(afs_is_disconnected)) {
5232 ObtainWriteLock(&afs_discon_lock, 999)do { ; if (!(&afs_discon_lock)->excl_locked &&
!(&afs_discon_lock)->readers_reading) (&afs_discon_lock
) -> excl_locked = 2; else Afs_Lock_Obtain(&afs_discon_lock
, 2); (&afs_discon_lock)->pid_writer = (((__curthread(
))->td_proc)->p_pid ); (&afs_discon_lock)->src_indicator
= 999; } while (0);
5233 afs_DisconGiveUpCallbacks();
5234 afs_RemoveAllConns();
5235 afs_is_disconnected = 1;
5236 afs_is_discon_rw = 1;
5237 ReleaseWriteLock(&afs_discon_lock)do { ; (&afs_discon_lock)->excl_locked &= ~2; if (
(&afs_discon_lock)->wait_states) Afs_Lock_ReleaseR(&
afs_discon_lock); (&afs_discon_lock)->pid_writer=0; } while
(0);
5238 }
5239 break;
5240 case 1: /* Fully connected, ("online" mode). */
5241 ObtainWriteLock(&afs_discon_lock, 998)do { ; if (!(&afs_discon_lock)->excl_locked &&
!(&afs_discon_lock)->readers_reading) (&afs_discon_lock
) -> excl_locked = 2; else Afs_Lock_Obtain(&afs_discon_lock
, 2); (&afs_discon_lock)->pid_writer = (((__curthread(
))->td_proc)->p_pid ); (&afs_discon_lock)->src_indicator
= 998; } while (0);
5242
5243 afs_in_sync = 1;
5244 afs_MarkAllServersUp();
5245 code = afs_ResyncDisconFiles(areq, *acred);
5246 afs_in_sync = 0;
5247
5248 if (code && !force) {
5249 afs_warnuser("Files not synchronized properly, still in discon state. \n"
5250 "Please retry or use \"force\".\n");
5251 mode = 0;
5252 } else {
5253 if (force) {
5254 afs_DisconDiscardAll(*acred);
5255 }
5256 afs_ClearAllStatdFlag();
5257 afs_is_disconnected = 0;
5258 afs_is_discon_rw = 0;
5259 afs_warnuser("\nSync succeeded. You are back online.\n");
5260 }
5261
5262 ReleaseWriteLock(&afs_discon_lock)do { ; (&afs_discon_lock)->excl_locked &= ~2; if (
(&afs_discon_lock)->wait_states) Afs_Lock_ReleaseR(&
afs_discon_lock); (&afs_discon_lock)->pid_writer=0; } while
(0);
5263 break;
5264 default:
5265 return EINVAL22;
5266 }
5267 } else {
5268 return EINVAL22;
5269 }
5270
5271 if (code)
5272 return code;
5273
5274 return afs_pd_putInt(aout, mode);
5275}
5276
5277#define MAX_PIOCTL_TOKENS10 10
5278
5279DECL_PIOCTL(PSetTokens2)static int PSetTokens2(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
5280{
5281 int code =0;
5282 int i, cellNum, primaryFlag;
5283 XDR xdrs;
5284 struct unixuser *tu;
5285 struct vrequest treq;
5286 struct ktc_setTokenData tokenSet;
5287 struct ktc_tokenUnion decodedToken;
5288
5289 memset(&tokenSet, 0, sizeof(tokenSet));
5290
5291 AFS_STATCNT(PSetTokens2)((afs_cmstats.callInfo.C_PSetTokens2)++);
5292 if (!afs_resourceinit_flag)
5293 return EIO5;
5294
5295 afs_pd_xdrStart(ain, &xdrs, XDR_DECODE);
5296
5297 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5298 afs_pd_xdrEnd(ain, &xdrs);
5299 return EINVAL22;
5300 }
5301
5302 afs_pd_xdrEnd(ain, &xdrs);
5303
5304 /* We limit each PAG to 10 tokens to prevent a malicous (or runaway)
5305 * process from using up the whole of the kernel memory by allocating
5306 * tokens.
5307 */
5308 if (tokenSet.tokens.tokens_len > MAX_PIOCTL_TOKENS10) {
5309 xdr_freeafs_xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5310 return E2BIG7;
5311 }
5312
5313 code = _settok_tokenCell(tokenSet.cell, &cellNum, &primaryFlag);
5314 if (code) {
5315 xdr_freeafs_xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5316 return code;
5317 }
5318
5319 if (tokenSet.flags & AFSTOKEN_EX_SETPAG0x00000001) {
5320 if (_settok_setParentPag(acred) == 0) {
5321 afs_InitReq(&treq, *acred);
5322 areq = &treq;
5323 }
5324 }
5325
5326 tu = afs_GetUser(areq->uid, cellNum, WRITE_LOCK2);
5327 /* Free any tokens that we've already got */
5328 afs_FreeTokens(&tu->tokens);
5329
5330 /* Iterate across the set of tokens we've received, and stuff them
5331 * into this user's tokenJar
5332 */
5333 for (i=0; i < tokenSet.tokens.tokens_len; i++) {
5334 xdrmem_createafs_xdrmem_create(&xdrs,
5335 tokenSet.tokens.tokens_val[i].token_opaque_val,
5336 tokenSet.tokens.tokens_val[i].token_opaque_len,
5337 XDR_DECODE);
5338
5339 memset(&decodedToken, 0, sizeof(decodedToken));
5340 if (!xdr_ktc_tokenUnion(&xdrs, &decodedToken)) {
5341 xdr_destroy(&xdrs)if ((&xdrs)->x_ops->x_destroy) (*(&xdrs)->x_ops
->x_destroy)(&xdrs);
5342 code = EINVAL22;
5343 goto out;
5344 }
5345
5346 xdr_destroy(&xdrs)if ((&xdrs)->x_ops->x_destroy) (*(&xdrs)->x_ops
->x_destroy)(&xdrs);
5347
5348 afs_AddTokenFromPioctl(&tu->tokens, &decodedToken);
5349 /* This is untidy - the old token interface supported passing
5350 * the primaryFlag as part of the token interface. Current
5351 * OpenAFS userland never sets this, but it's specified as being
5352 * part of the XG interface, so we should probably still support
5353 * it. Rather than add it to our AddToken interface, just handle
5354 * it here.
5355 */
5356 if (decodedToken.at_type == AFSTOKEN_UNION_KAD2) {
5357 if (decodedToken.ktc_tokenUnion_u.at_kad.rk_primary_flag)
5358 primaryFlag = 1;
5359 }
5360
5361 /* XXX - We should think more about destruction here. It's likely that
5362 * there is key material in what we're about to throw away, which
5363 * we really should zero out before giving back to the allocator */
5364 xdr_freeafs_xdr_free((xdrproc_t) xdr_ktc_tokenUnion, &decodedToken);
5365 }
5366
5367 tu->states |= UHasTokens1;
5368 tu->states &= ~UTokensBad2;
5369 afs_SetPrimary(tu, primaryFlag);
5370 tu->tokenTime = osi_Time()time_second;
5371
5372 xdr_freeafs_xdr_free((xdrproc_t) xdr_ktc_setTokenData, &tokenSet);
5373
5374out:
5375 afs_ResetUserConns(tu);
5376 afs_PutUser(tu, WRITE_LOCK2);
5377
5378 return code;
5379}
5380
5381DECL_PIOCTL(PGetTokens2)static int PGetTokens2(struct vcache *avc, int afun, struct vrequest
*areq, struct afs_pdata *ain, struct afs_pdata *aout, afs_ucred_t
**acred)
5382{
5383 struct cell *cell;
5384 struct unixuser *tu = NULL((void *)0);
5385 afs_int32 iterator;
5386 char *cellName = NULL((void *)0);
5387 afs_int32 cellNum;
5388 int code = 0;
5389 time_t now;
5390 XDR xdrs;
5391 struct ktc_setTokenData tokenSet;
5392
5393 AFS_STATCNT(PGetTokens)((afs_cmstats.callInfo.C_PGetTokens)++);
5394 if (!afs_resourceinit_flag)
5395 return EIO5;
5396
5397 memset(&tokenSet, 0, sizeof(tokenSet));
5398
5399 /* No input data - return tokens for primary cell */
5400 /* 4 octets of data is an iterator count */
5401 /* Otherwise, treat as string & return tokens for that cell name */
5402
5403 if (afs_pd_remaining(ain) == sizeof(afs_int32)) {
5404 /* Integer iterator - return tokens for the n'th cell found for user */
5405 if (afs_pd_getInt(ain, &iterator) != 0)
5406 return EINVAL22;
5407 tu = getNthCell(areq->uid, iterator);
5408 } else {
5409 if (afs_pd_remaining(ain) > 0) {
5410 if (afs_pd_getStringPtr(ain, &cellName) != 0)
5411 return EINVAL22;
5412 } else {
5413 cellName = NULL((void *)0);
5414 }
5415 code = _settok_tokenCell(cellName, &cellNum, NULL((void *)0));
5416 if (code)
5417 return code;
5418 tu = afs_FindUser(areq->uid, cellNum, READ_LOCK1);
5419 }
5420 if (tu == NULL((void *)0))
5421 return EDOM33;
5422
5423 now = osi_Time()time_second;
5424
5425 if (!(tu->states & UHasTokens1)
5426 || !afs_HasValidTokens(tu->tokens, now)) {
5427 tu->states |= (UTokensBad2 | UNeedsReset8);
5428 afs_PutUser(tu, READ_LOCK1);
5429 return ENOTCONN57;
5430 }
5431
5432 code = afs_ExtractTokensForPioctl(tu->tokens, now, &tokenSet);
5433 if (code)
5434 goto out;
5435
5436 cell = afs_GetCell(tu->cell, READ_LOCK1);
5437 tokenSet.cell = cell->cellName;
5438 afs_pd_xdrStart(aout, &xdrs, XDR_ENCODE);
5439 if (!xdr_ktc_setTokenData(&xdrs, &tokenSet)) {
5440 code = E2BIG7;
5441 goto out;
5442 }
5443 afs_pd_xdrEnd(aout, &xdrs);
5444
5445out:
5446 tokenSet.cell = NULL((void *)0);
5447
5448 if (tu)
5449 afs_PutUser(tu, READ_LOCK1);
5450 if (cell)
5451 afs_PutCell(cell, READ_LOCK);
5452 xdr_freeafs_xdr_free((xdrproc_t)xdr_ktc_setTokenData, &tokenSet);
5453
5454 return code;
5455};
5456
5457DECL_PIOCTL(PNFSNukeCreds)static int PNFSNukeCreds(struct vcache *avc, int afun, struct
vrequest *areq, struct afs_pdata *ain, struct afs_pdata *aout
, afs_ucred_t **acred)
5458{
5459 afs_uint32 addr;
5460 afs_int32 i;
5461 struct unixuser *tu;
5462
5463 AFS_STATCNT(PUnlog)((afs_cmstats.callInfo.C_PUnlog)++);
5464 if (!afs_resourceinit_flag) /* afs daemons haven't started yet */
5465 return EIO5; /* Inappropriate ioctl for device */
5466
5467 if (afs_pd_getUint(ain, &addr) != 0)
5468 return EINVAL22;
5469
5470 if (afs_cr_gid(*acred)((*acred)->cr_groups[0]) == RMTUSER_REQ_PRIV0xabe && !addr) {
5471 tu = afs_GetUser(areq->uid, -1, SHARED_LOCK4);
5472 if (!tu->exporter || !(addr = EXP_GETHOST(tu->exporter)(*(tu->exporter)->exp_op->export_gethost)(tu->exporter
))) {
5473 afs_PutUser(tu, SHARED_LOCK4);
5474 return EACCES13;
5475 }
5476 afs_PutUser(tu, SHARED_LOCK4);
5477 } else if (!afs_osi_suser(acred)) {
5478 return EACCES13;
5479 }
5480
5481 ObtainWriteLock(&afs_xuser, 227)do { ; if (!(&afs_xuser)->excl_locked && !(&
afs_xuser)->readers_reading) (&afs_xuser) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xuser, 2); (&afs_xuser
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xuser)->src_indicator = 227; } while (0);
5482 for (i = 0; i < NUSERS16; i++) {
5483 for (tu = afs_users[i]; tu; tu = tu->next) {
5484 if (tu->exporter && EXP_CHECKHOST(tu->exporter, addr)(*(tu->exporter)->exp_op->export_checkhost)(tu->exporter
, addr)) {
5485 tu->refCount++;
5486 ReleaseWriteLock(&afs_xuser)do { ; (&afs_xuser)->excl_locked &= ~2; if ((&
afs_xuser)->wait_states) Afs_Lock_ReleaseR(&afs_xuser)
; (&afs_xuser)->pid_writer=0; } while (0);
5487
5488 afs_LockUser(tu, WRITE_LOCK2, 367);
5489
5490 tu->states &= ~UHasTokens1;
5491 afs_FreeTokens(&tu->tokens);
5492 afs_ResetUserConns(tu);
5493 afs_PutUser(tu, WRITE_LOCK2);
5494 ObtainWriteLock(&afs_xuser, 228)do { ; if (!(&afs_xuser)->excl_locked && !(&
afs_xuser)->readers_reading) (&afs_xuser) -> excl_locked
= 2; else Afs_Lock_Obtain(&afs_xuser, 2); (&afs_xuser
)->pid_writer = (((__curthread())->td_proc)->p_pid )
; (&afs_xuser)->src_indicator = 228; } while (0);
5495#ifdef UKERNEL
5496 /* set the expire times to 0, causes
5497 * afs_GCUserData to remove this entry
5498 */
5499 tu->tokenTime = 0;
5500#endif /* UKERNEL */
5501 }
5502 }
5503 }
5504 ReleaseWriteLock(&afs_xuser)do { ; (&afs_xuser)->excl_locked &= ~2; if ((&
afs_xuser)->wait_states) Afs_Lock_ReleaseR(&afs_xuser)
; (&afs_xuser)->pid_writer=0; } while (0);
5505 return 0;
5506}