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 = (struct vcache *)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;
68 AFS_STATCNT(afs_mkdir);
69 afs_Trace2(afs_iclSetp, CM_TRACE_MKDIR, ICL_TYPE_POINTER, adp,
70 ICL_TYPE_STRING, aname);
72 if (code = afs_InitReq(&treq, acred)) return code;
74 if (!afs_ENameOK(aname)) {
78 code = afs_VerifyVCache(adp, &treq);
81 /** If the volume is read-only, return error without making an RPC to the
84 if ( adp->states & CRO ) {
89 InStatus.Mask = AFS_SETMODTIME | AFS_SETMODE | AFS_SETGROUP;
90 InStatus.ClientModTime = osi_Time();
91 InStatus.UnixModeBits = attrs->va_mode & 0xffff; /* only care about protection bits */
92 InStatus.Group = (afs_int32)acred->cr_gid;
93 tdc = afs_GetDCache(adp, (afs_size_t) 0, &treq, &offset, &len, 1);
94 ObtainWriteLock(&adp->lock,153);
96 tc = afs_Conn(&adp->fid, &treq, SHARED_LOCK);
98 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_MAKEDIR);
100 #ifdef RX_ENABLE_LOCKS
102 #endif /* RX_ENABLE_LOCKS */
103 code = RXAFS_MakeDir(tc->id, (struct AFSFid *) &adp->fid.Fid, aname,
104 &InStatus, (struct AFSFid *) &newFid.Fid,
105 &OutFidStatus, &OutDirStatus, &CallBack, &tsync);
106 #ifdef RX_ENABLE_LOCKS
108 #endif /* RX_ENABLE_LOCKS */
110 CallBack.ExpirationTime += now;
111 /* DON'T forget to Set the callback value... */
115 (afs_Analyze(tc, code, &adp->fid, &treq,
116 AFS_STATS_FS_RPCIDX_MAKEDIR, SHARED_LOCK, (struct cell *)0));
120 ObtainWriteLock(&afs_xcbhash, 490);
121 afs_DequeueCallback(adp);
122 adp->states &= ~CStatd;
123 ReleaseWriteLock(&afs_xcbhash);
124 osi_dnlc_purgedp(adp);
126 ReleaseWriteLock(&adp->lock);
127 if (tdc) afs_PutDCache(tdc);
130 /* otherwise, we should see if we can make the change to the dir locally */
131 if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
132 /* we can do it locally */
133 code = afs_dir_Create(&tdc->f.inode, aname, &newFid.Fid);
135 ZapDCE(tdc); /* surprise error -- use invalid value */
142 adp->m.LinkCount = OutDirStatus.LinkCount;
143 newFid.Cell = adp->fid.Cell;
144 newFid.Fid.Volume = adp->fid.Fid.Volume;
145 ReleaseWriteLock(&adp->lock);
146 /* now we're done with parent dir, create the real dir's cache entry */
147 tvc = afs_GetVCache(&newFid, &treq, (afs_int32 *)0, (struct vcache*)0, 0);
155 AFS_RELE(ndp->ni_dvp);
156 #endif /* AFS_OSF_ENV */
157 code = afs_CheckCode(code, &treq, 26);
164 struct nameidata *ndp; {
165 register struct vcache *adp = (struct vcache *)ndp->ni_dvp;
166 char *aname = ndp->ni_dent.d_name;
167 struct ucred *acred = ndp->ni_cred;
168 #else /* AFS_OSF_ENV */
169 /* don't set CDirty in here because RPC is called synchronously */
170 #if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
171 afs_rmdir(OSI_VC_ARG(adp), aname, cdirp, acred)
174 afs_rmdir(adp, aname, acred)
178 struct AFS_UCRED *acred; {
180 struct vrequest treq;
181 register struct dcache *tdc;
182 register struct vcache *tvc = (struct vcache *)0;
183 register afs_int32 code;
184 register struct conn *tc;
185 afs_size_t offset, len;
186 struct AFSFetchStatus OutDirStatus;
187 struct AFSVolSync tsync;
191 AFS_STATCNT(afs_rmdir);
193 afs_Trace2(afs_iclSetp, CM_TRACE_RMDIR, ICL_TYPE_POINTER, adp,
194 ICL_TYPE_STRING, aname);
196 if (code = afs_InitReq(&treq, acred)) return code;
197 code = afs_VerifyVCache(adp, &treq);
200 /** If the volume is read-only, return error without making an RPC to the
203 if ( adp->states & CRO ) {
208 tdc = afs_GetDCache(adp, (afs_size_t) 0, &treq, &offset, &len, 1); /* test for error below */
209 ObtainWriteLock(&adp->lock,154);
210 if (tdc && (adp->states & CForeign)) {
211 struct VenusFid unlinkFid;
213 unlinkFid.Fid.Vnode = 0;
214 code = afs_dir_Lookup(&tdc->f.inode, aname, &unlinkFid.Fid);
218 unlinkFid.Cell = adp->fid.Cell;
219 unlinkFid.Fid.Volume = adp->fid.Fid.Volume;
220 if (unlinkFid.Fid.Unique == 0) {
221 tvc = afs_LookupVCache(&unlinkFid, &treq, &cached,
222 WRITE_LOCK, adp, aname);
224 ObtainReadLock(&afs_xvcache);
225 tvc = afs_FindVCache(&unlinkFid, 1, WRITE_LOCK,
226 0, 1/* do xstats */);
227 ReleaseReadLock(&afs_xvcache);
233 tc = afs_Conn(&adp->fid, &treq, SHARED_LOCK);
235 XSTATS_START_TIME(AFS_STATS_FS_RPCIDX_REMOVEDIR);
236 #ifdef RX_ENABLE_LOCKS
238 #endif /* RX_ENABLE_LOCKS */
239 code = RXAFS_RemoveDir(tc->id, (struct AFSFid *) &adp->fid.Fid,
240 aname, &OutDirStatus, &tsync);
241 #ifdef RX_ENABLE_LOCKS
243 #endif /* RX_ENABLE_LOCKS */
248 (afs_Analyze(tc, code, &adp->fid, &treq,
249 AFS_STATS_FS_RPCIDX_REMOVEDIR, SHARED_LOCK, (struct cell *)0));
252 if (tdc) afs_PutDCache(tdc);
254 ObtainWriteLock(&afs_xcbhash, 491);
255 afs_DequeueCallback(adp);
256 adp->states &= ~CStatd;
257 ReleaseWriteLock(&afs_xcbhash);
258 osi_dnlc_purgedp(adp);
260 ReleaseWriteLock(&adp->lock);
263 /* here if rpc worked; update the in-core link count */
264 adp->m.LinkCount = OutDirStatus.LinkCount;
265 if (afs_LocalHero(adp, tdc, &OutDirStatus, 1)) {
266 /* we can do it locally */
267 code = afs_dir_Delete(&tdc->f.inode, aname);
269 ZapDCE(tdc); /* surprise error -- invalid value */
274 afs_PutDCache(tdc); /* drop ref count */
279 osi_dnlc_purgedp (tvc); /* get rid of any entries for this directory */
280 afs_symhint_inval(tvc);
282 osi_dnlc_remove (adp, aname, 0);
285 ObtainWriteLock(&tvc->lock,155);
286 tvc->states &= ~CUnique; /* For the dfs xlator */
287 ReleaseWriteLock(&tvc->lock);
288 afs_PutVCache(tvc, WRITE_LOCK);
290 ReleaseWriteLock(&adp->lock);
291 /* don't worry about link count since dirs can not be hardlinked */
296 afs_PutVCache(adp, 0);
297 afs_PutVCache(ndp->ni_vp, 0);
298 #endif /* AFS_OSF_ENV */
299 code = afs_CheckCode(code, &treq, 27);