2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * afs_vnop_dirops.c - make and remove directories
20 #include <afsconfig.h>
21 #include "../afs/param.h"
25 #include "../afs/sysincludes.h" /* Standard vendor system headers */
26 #include "../afs/afsincludes.h" /* Afs-based standard headers */
27 #include "../afs/afs_stats.h" /* statistics */
28 #include "../afs/afs_cbqueue.h"
29 #include "../afs/nfsclient.h"
30 #include "../afs/afs_osidnlc.h"
32 extern afs_rwlock_t afs_xvcache;
33 extern afs_rwlock_t afs_xcbhash;
35 /* don't set CDirty in here because RPC is called synchronously */
39 struct nameidata *ndp;
40 struct vattr *attrs; {
41 register struct vcache *adp = VTOAFS(ndp->ni_dvp);
42 char *aname = ndp->ni_dent.d_name;
43 register struct vcache **avcp = (struct vcache **)&(ndp->ni_vp);
44 struct ucred *acred = ndp->ni_cred;
45 #else /* AFS_OSF_ENV */
46 afs_mkdir(OSI_VC_ARG(adp), aname, attrs, avcp, acred)
48 register struct vcache **avcp;
51 struct AFS_UCRED *acred; {
54 register afs_int32 code;
55 register struct conn *tc;
56 struct VenusFid newFid;
57 register struct dcache *tdc;
58 afs_size_t offset, len;
59 register struct vcache *tvc;
60 struct AFSStoreStatus InStatus;
61 struct AFSFetchStatus OutFidStatus, OutDirStatus;
62 struct AFSCallBack CallBack;
63 struct AFSVolSync tsync;
65 struct afs_fakestat_state fakestate;
69 AFS_STATCNT(afs_mkdir);
70 afs_Trace2(afs_iclSetp, CM_TRACE_MKDIR, ICL_TYPE_POINTER, adp,
71 ICL_TYPE_STRING, aname);
73 if (code = afs_InitReq(&treq, acred))
75 afs_InitFakeStat(&fakestate);
77 if (strlen(aname) > AFSNAMEMAX) {
82 if (!afs_ENameOK(aname)) {
86 code = afs_EvalFakeStat(&adp, &fakestate, &treq);
88 code = afs_VerifyVCache(adp, &treq);
91 /** If the volume is read-only, return error without making an RPC to the
94 if ( adp->states & CRO ) {
99 InStatus.Mask = AFS_SETMODTIME | AFS_SETMODE | AFS_SETGROUP;
100 InStatus.ClientModTime = osi_Time();
101 InStatus.UnixModeBits = attrs->va_mode & 0xffff; /* only care about protection bits */
102 InStatus.Group = (afs_int32)acred->cr_gid;
103 tdc = afs_GetDCache(adp, (afs_size_t) 0, &treq, &offset, &len, 1);
104 ObtainWriteLock(&adp->lock,153);
106 tc = afs_Conn(&adp->fid, &treq, SHARED_LOCK);
108 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_MAKEDIR);
110 #ifdef RX_ENABLE_LOCKS
112 #endif /* RX_ENABLE_LOCKS */
113 code = RXAFS_MakeDir(tc->id, (struct AFSFid *) &adp->fid.Fid, aname,
114 &InStatus, (struct AFSFid *) &newFid.Fid,
115 &OutFidStatus, &OutDirStatus, &CallBack, &tsync);
116 #ifdef RX_ENABLE_LOCKS
118 #endif /* RX_ENABLE_LOCKS */
120 CallBack.ExpirationTime += now;
121 /* DON'T forget to Set the callback value... */
125 (afs_Analyze(tc, code, &adp->fid, &treq,
126 AFS_STATS_FS_RPCIDX_MAKEDIR, SHARED_LOCK, (struct cell *)0));
130 ObtainWriteLock(&afs_xcbhash, 490);
131 afs_DequeueCallback(adp);
132 adp->states &= ~CStatd;
133 ReleaseWriteLock(&afs_xcbhash);
134 osi_dnlc_purgedp(adp);
136 ReleaseWriteLock(&adp->lock);
137 if (tdc) afs_PutDCache(tdc);
140 /* otherwise, we should see if we can make the change to the dir locally */
141 if (tdc) ObtainWriteLock(&tdc->lock, 632);
142 if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
143 /* we can do it locally */
144 code = afs_dir_Create(&tdc->f.inode, aname, &newFid.Fid);
146 ZapDCE(tdc); /* surprise error -- use invalid value */
151 ReleaseWriteLock(&tdc->lock);
154 adp->m.LinkCount = OutDirStatus.LinkCount;
155 newFid.Cell = adp->fid.Cell;
156 newFid.Fid.Volume = adp->fid.Fid.Volume;
157 ReleaseWriteLock(&adp->lock);
158 /* now we're done with parent dir, create the real dir's cache entry */
159 tvc = afs_GetVCache(&newFid, &treq, (afs_int32 *)0, (struct vcache*)0, 0);
166 afs_PutFakeStat(&fakestate);
167 code = afs_CheckCode(code, &treq, 26);
170 AFS_RELE(ndp->ni_dvp);
171 #endif /* AFS_OSF_ENV */
178 struct nameidata *ndp; {
179 register struct vcache *adp = VTOAFS(ndp->ni_dvp);
180 char *aname = ndp->ni_dent.d_name;
181 struct ucred *acred = ndp->ni_cred;
182 #else /* AFS_OSF_ENV */
183 /* don't set CDirty in here because RPC is called synchronously */
184 #if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
185 afs_rmdir(OSI_VC_ARG(adp), aname, cdirp, acred)
188 afs_rmdir(adp, aname, acred)
192 struct AFS_UCRED *acred; {
194 struct vrequest treq;
195 register struct dcache *tdc;
196 register struct vcache *tvc = (struct vcache *)0;
197 register afs_int32 code;
198 register struct conn *tc;
199 afs_size_t offset, len;
200 struct AFSFetchStatus OutDirStatus;
201 struct AFSVolSync tsync;
202 struct afs_fakestat_state fakestate;
206 AFS_STATCNT(afs_rmdir);
208 afs_Trace2(afs_iclSetp, CM_TRACE_RMDIR, ICL_TYPE_POINTER, adp,
209 ICL_TYPE_STRING, aname);
211 if (code = afs_InitReq(&treq, acred))
213 afs_InitFakeStat(&fakestate);
215 if (strlen(aname) > AFSNAMEMAX) {
220 code = afs_EvalFakeStat(&adp, &fakestate, &treq);
224 code = afs_VerifyVCache(adp, &treq);
227 /** If the volume is read-only, return error without making an RPC to the
230 if ( adp->states & CRO ) {
235 tdc = afs_GetDCache(adp, (afs_size_t) 0, &treq, &offset, &len, 1); /* test for error below */
236 ObtainWriteLock(&adp->lock,154);
237 if (tdc) ObtainSharedLock(&tdc->lock, 633);
238 if (tdc && (adp->states & CForeign)) {
239 struct VenusFid unlinkFid;
241 unlinkFid.Fid.Vnode = 0;
242 code = afs_dir_Lookup(&tdc->f.inode, aname, &unlinkFid.Fid);
246 unlinkFid.Cell = adp->fid.Cell;
247 unlinkFid.Fid.Volume = adp->fid.Fid.Volume;
248 if (unlinkFid.Fid.Unique == 0) {
249 tvc = afs_LookupVCache(&unlinkFid, &treq, &cached,
250 WRITE_LOCK, adp, aname);
252 ObtainReadLock(&afs_xvcache);
253 tvc = afs_FindVCache(&unlinkFid, 1, WRITE_LOCK,
254 0, 1/* do xstats */);
255 ReleaseReadLock(&afs_xvcache);
261 tc = afs_Conn(&adp->fid, &treq, SHARED_LOCK);
263 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEDIR);
264 #ifdef RX_ENABLE_LOCKS
266 #endif /* RX_ENABLE_LOCKS */
267 code = RXAFS_RemoveDir(tc->id, (struct AFSFid *) &adp->fid.Fid,
268 aname, &OutDirStatus, &tsync);
269 #ifdef RX_ENABLE_LOCKS
271 #endif /* RX_ENABLE_LOCKS */
276 (afs_Analyze(tc, code, &adp->fid, &treq,
277 AFS_STATS_FS_RPCIDX_REMOVEDIR, SHARED_LOCK, (struct cell *)0));
281 ReleaseSharedLock(&tdc->lock);
285 ObtainWriteLock(&afs_xcbhash, 491);
286 afs_DequeueCallback(adp);
287 adp->states &= ~CStatd;
288 ReleaseWriteLock(&afs_xcbhash);
289 osi_dnlc_purgedp(adp);
291 ReleaseWriteLock(&adp->lock);
294 /* here if rpc worked; update the in-core link count */
295 adp->m.LinkCount = OutDirStatus.LinkCount;
296 if (tdc) UpgradeSToWLock(&tdc->lock, 634);
297 if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
298 /* we can do it locally */
299 code = afs_dir_Delete(&tdc->f.inode, aname);
301 ZapDCE(tdc); /* surprise error -- invalid value */
306 ReleaseWriteLock(&tdc->lock);
307 afs_PutDCache(tdc); /* drop ref count */
312 osi_dnlc_purgedp (tvc); /* get rid of any entries for this directory */
313 afs_symhint_inval(tvc);
315 osi_dnlc_remove (adp, aname, 0);
318 ObtainWriteLock(&tvc->lock,155);
319 tvc->states &= ~CUnique; /* For the dfs xlator */
320 ReleaseWriteLock(&tvc->lock);
321 afs_PutVCache(tvc, WRITE_LOCK);
323 ReleaseWriteLock(&adp->lock);
324 /* don't worry about link count since dirs can not be hardlinked */
328 afs_PutFakeStat(&fakestate);
329 code = afs_CheckCode(code, &treq, 27);
332 afs_PutVCache(adp, 0);
333 afs_PutVCache(ndp->ni_vp, 0);
334 #endif /* AFS_OSF_ENV */