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);
111 code = RXAFS_MakeDir(tc->id, (struct AFSFid *) &adp->fid.Fid, aname,
112 &InStatus, (struct AFSFid *) &newFid.Fid,
113 &OutFidStatus, &OutDirStatus, &CallBack, &tsync);
116 CallBack.ExpirationTime += now;
117 /* DON'T forget to Set the callback value... */
121 (afs_Analyze(tc, code, &adp->fid, &treq,
122 AFS_STATS_FS_RPCIDX_MAKEDIR, SHARED_LOCK, NULL));
126 ObtainWriteLock(&afs_xcbhash, 490);
127 afs_DequeueCallback(adp);
128 adp->states &= ~CStatd;
129 ReleaseWriteLock(&afs_xcbhash);
130 osi_dnlc_purgedp(adp);
132 ReleaseWriteLock(&adp->lock);
133 if (tdc) afs_PutDCache(tdc);
136 /* otherwise, we should see if we can make the change to the dir locally */
137 if (tdc) ObtainWriteLock(&tdc->lock, 632);
138 if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
139 /* we can do it locally */
140 code = afs_dir_Create(&tdc->f.inode, aname, &newFid.Fid);
142 ZapDCE(tdc); /* surprise error -- use invalid value */
147 ReleaseWriteLock(&tdc->lock);
150 adp->m.LinkCount = OutDirStatus.LinkCount;
151 newFid.Cell = adp->fid.Cell;
152 newFid.Fid.Volume = adp->fid.Fid.Volume;
153 ReleaseWriteLock(&adp->lock);
154 /* now we're done with parent dir, create the real dir's cache entry */
155 tvc = afs_GetVCache(&newFid, &treq, NULL, NULL);
162 afs_PutFakeStat(&fakestate);
163 code = afs_CheckCode(code, &treq, 26);
166 AFS_RELE(ndp->ni_dvp);
167 #endif /* AFS_OSF_ENV */
174 struct nameidata *ndp; {
175 register struct vcache *adp = VTOAFS(ndp->ni_dvp);
176 char *aname = ndp->ni_dent.d_name;
177 struct ucred *acred = ndp->ni_cred;
178 #else /* AFS_OSF_ENV */
179 /* don't set CDirty in here because RPC is called synchronously */
180 #if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
181 afs_rmdir(OSI_VC_ARG(adp), aname, cdirp, acred)
184 afs_rmdir(adp, aname, acred)
188 struct AFS_UCRED *acred; {
190 struct vrequest treq;
191 register struct dcache *tdc;
192 register struct vcache *tvc = NULL;
193 register afs_int32 code;
194 register struct conn *tc;
195 afs_size_t offset, len;
196 struct AFSFetchStatus OutDirStatus;
197 struct AFSVolSync tsync;
198 struct afs_fakestat_state fakestate;
202 AFS_STATCNT(afs_rmdir);
204 afs_Trace2(afs_iclSetp, CM_TRACE_RMDIR, ICL_TYPE_POINTER, adp,
205 ICL_TYPE_STRING, aname);
207 if ((code = afs_InitReq(&treq, acred)))
209 afs_InitFakeStat(&fakestate);
211 if (strlen(aname) > AFSNAMEMAX) {
216 code = afs_EvalFakeStat(&adp, &fakestate, &treq);
220 code = afs_VerifyVCache(adp, &treq);
223 /** If the volume is read-only, return error without making an RPC to the
226 if ( adp->states & CRO ) {
231 tdc = afs_GetDCache(adp, (afs_size_t) 0, &treq, &offset, &len, 1); /* test for error below */
232 ObtainWriteLock(&adp->lock,154);
233 if (tdc) ObtainSharedLock(&tdc->lock, 633);
234 if (tdc && (adp->states & CForeign)) {
235 struct VenusFid unlinkFid;
237 unlinkFid.Fid.Vnode = 0;
238 code = afs_dir_Lookup(&tdc->f.inode, aname, &unlinkFid.Fid);
242 unlinkFid.Cell = adp->fid.Cell;
243 unlinkFid.Fid.Volume = adp->fid.Fid.Volume;
244 if (unlinkFid.Fid.Unique == 0) {
245 tvc = afs_LookupVCache(&unlinkFid, &treq, &cached, adp, aname);
247 ObtainReadLock(&afs_xvcache);
248 tvc = afs_FindVCache(&unlinkFid, 0, 1/* do xstats */);
249 ReleaseReadLock(&afs_xvcache);
255 tc = afs_Conn(&adp->fid, &treq, SHARED_LOCK);
257 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEDIR);
259 code = RXAFS_RemoveDir(tc->id, (struct AFSFid *) &adp->fid.Fid,
260 aname, &OutDirStatus, &tsync);
266 (afs_Analyze(tc, code, &adp->fid, &treq,
267 AFS_STATS_FS_RPCIDX_REMOVEDIR, SHARED_LOCK, NULL));
271 ReleaseSharedLock(&tdc->lock);
275 ObtainWriteLock(&afs_xcbhash, 491);
276 afs_DequeueCallback(adp);
277 adp->states &= ~CStatd;
278 ReleaseWriteLock(&afs_xcbhash);
279 osi_dnlc_purgedp(adp);
281 ReleaseWriteLock(&adp->lock);
284 /* here if rpc worked; update the in-core link count */
285 adp->m.LinkCount = OutDirStatus.LinkCount;
286 if (tdc) UpgradeSToWLock(&tdc->lock, 634);
287 if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
288 /* we can do it locally */
289 code = afs_dir_Delete(&tdc->f.inode, aname);
291 ZapDCE(tdc); /* surprise error -- invalid value */
296 ReleaseWriteLock(&tdc->lock);
297 afs_PutDCache(tdc); /* drop ref count */
302 osi_dnlc_purgedp (tvc); /* get rid of any entries for this directory */
303 afs_symhint_inval(tvc);
305 osi_dnlc_remove (adp, aname, 0);
308 ObtainWriteLock(&tvc->lock,155);
309 tvc->states &= ~CUnique; /* For the dfs xlator */
310 ReleaseWriteLock(&tvc->lock);
313 ReleaseWriteLock(&adp->lock);
314 /* don't worry about link count since dirs can not be hardlinked */
318 afs_PutFakeStat(&fakestate);
319 code = afs_CheckCode(code, &treq, 27);
323 afs_PutVCache(ndp->ni_vp);
324 #endif /* AFS_OSF_ENV */