2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include "afs/param.h"
14 #include "afs/sysincludes.h" /* Standard vendor system headers */
15 #include "afsincludes.h" /* Afs-based standard headers */
16 #include "afs/afs_stats.h" /* afs statistics */
17 #include "afs/osi_inode.h"
20 int afs_osicred_initialized = 0;
21 afs_ucred_t afs_osi_cred;
22 afs_lock_t afs_xosi; /* lock is for tvattr */
23 extern struct osi_dev cacheDev;
24 extern struct mount *afs_cacheVfsp;
25 int afs_CacheFSType = -1;
27 /* Initialize the cache operations. Called while initializing cache files. */
29 afs_InitDualFSCacheOps(struct vnode *vp)
32 static int inited = 0;
33 #ifdef AFS_DARWIN80_ENV
34 char *buffer = (char*)_MALLOC(MFSNAMELEN, M_TEMP, M_WAITOK);
43 #ifdef AFS_DARWIN80_ENV
44 vfs_name(vnode_mount(vp), buffer);
45 if (strncmp("hfs", buffer, 3) == 0)
47 if (strncmp("hfs", vp->v_mount->mnt_vfc->vfc_name, 3) == 0)
49 afs_CacheFSType = AFS_APPL_HFS_CACHE;
50 #ifdef AFS_DARWIN80_ENV
51 else if (strncmp("ufs", buffer, 3) == 0)
53 else if (strncmp("ufs", vp->v_mount->mnt_vfc->vfc_name, 3) == 0)
55 afs_CacheFSType = AFS_APPL_UFS_CACHE;
57 osi_Panic("Unknown cache vnode type\n");
58 #ifdef AFS_DARWIN80_ENV
59 _FREE(buffer, M_TEMP);
64 VnodeToIno(vnode_t avp)
68 #ifndef AFS_DARWIN80_ENV
69 if (afs_CacheFSType == AFS_APPL_UFS_CACHE) {
70 struct inode *ip = VTOI(avp);
72 } else if (afs_CacheFSType == AFS_APPL_HFS_CACHE) {
74 #if defined(AFS_DARWIN80_ENV)
77 VATTR_WANTED(&va, va_fileid);
78 if (vnode_getattr(avp, &va, afs_osi_ctxtp))
79 osi_Panic("VOP_GETATTR failed in VnodeToIno\n");
80 if (!VATTR_ALL_SUPPORTED(&va))
81 osi_Panic("VOP_GETATTR unsupported fileid in VnodeToIno\n");
85 if (VOP_GETATTR(avp, &va, &afs_osi_cred, current_proc()))
86 osi_Panic("VOP_GETATTR failed in VnodeToIno\n");
89 struct hfsnode *hp = VTOH(avp);
92 #ifndef AFS_DARWIN80_ENV
94 osi_Panic("VnodeToIno called before cacheops initialized\n");
101 VnodeToDev(vnode_t avp)
103 #ifndef AFS_DARWIN80_ENV
104 if (afs_CacheFSType == AFS_APPL_UFS_CACHE) {
105 struct inode *ip = VTOI(avp);
107 } else if (afs_CacheFSType == AFS_APPL_HFS_CACHE) {
109 #if defined(AFS_DARWIN80_ENV)
112 VATTR_WANTED(&va, va_fsid);
113 if (vnode_getattr(avp, &va, afs_osi_ctxtp))
114 osi_Panic("VOP_GETATTR failed in VnodeToDev\n");
115 if (!VATTR_ALL_SUPPORTED(&va))
116 osi_Panic("VOP_GETATTR unsupported fsid in VnodeToIno\n");
117 return va.va_fsid; /* XXX they say it's the dev.... */
120 if (VOP_GETATTR(avp, &va, &afs_osi_cred, current_proc()))
121 osi_Panic("VOP_GETATTR failed in VnodeToDev\n");
122 return va.va_fsid; /* XXX they say it's the dev.... */
124 struct hfsnode *hp = VTOH(avp);
127 #ifndef AFS_DARWIN80_ENV
129 osi_Panic("VnodeToDev called before cacheops initialized\n");
134 osi_UFSOpen(afs_dcache_id_t *ainode)
138 register struct osi_file *afile = NULL;
139 extern int cacheDiskType;
143 struct osi_stat tstat;
145 AFS_STATCNT(osi_UFSOpen);
146 if (cacheDiskType != AFS_FCACHE_TYPE_UFS) {
147 osi_Panic("UFSOpen called for non-UFS cache\n");
149 if (!afs_osicred_initialized) {
150 /* valid for alpha_osf, SunOS, Ultrix */
151 memset(&afs_osi_cred, 0, sizeof(afs_ucred_t));
152 afs_osi_cred.cr_ref++;
153 afs_osi_cred.cr_ngroups = 1;
154 afs_osicred_initialized = 1;
156 afile = (struct osi_file *)osi_AllocSmallSpace(sizeof(struct osi_file));
158 #ifdef AFS_CACHE_VNODE_PATH
160 osi_Panic("No cache inode\n");
163 code = vnode_open(ainode->ufs, O_RDWR, 0, 0, &vp, afs_osi_ctxtp);
165 #ifndef AFS_DARWIN80_ENV
166 if (afs_CacheFSType == AFS_APPL_HFS_CACHE)
167 code = igetinode(afs_cacheVfsp, (dev_t) cacheDev.dev, &ainode->ufs, &vp, &va, &dummy); /* XXX hfs is broken */
168 else if (afs_CacheFSType == AFS_APPL_UFS_CACHE)
171 igetinode(afs_cacheVfsp, (dev_t) cacheDev.dev, (ino_t) ainode->ufs,
173 #ifndef AFS_DARWIN80_ENV
175 panic("osi_UFSOpen called before cacheops initialized\n");
180 osi_FreeSmallSpace(afile);
181 osi_Panic("UFSOpen: igetinode failed");
185 afile->proc = (int (*)())0;
186 #ifndef AFS_CACHE_VNODE_PATH
187 afile->size = va.va_size;
189 code = afs_osi_Stat(afile, &tstat);
190 afile->size = tstat.size;
192 return (void *)afile;
196 afs_osi_Stat(register struct osi_file *afile, register struct osi_stat *astat)
198 register afs_int32 code;
200 AFS_STATCNT(osi_Stat);
201 ObtainWriteLock(&afs_xosi, 320);
203 #ifdef AFS_DARWIN80_ENV
205 VATTR_WANTED(&tvattr, va_size);
206 VATTR_WANTED(&tvattr, va_blocksize);
207 VATTR_WANTED(&tvattr, va_mtime);
208 VATTR_WANTED(&tvattr, va_atime);
209 code = vnode_getattr(afile->vnode, &tvattr, afs_osi_ctxtp);
210 if (code == 0 && !VATTR_ALL_SUPPORTED(&tvattr))
213 code = VOP_GETATTR(afile->vnode, &tvattr, &afs_osi_cred, current_proc());
217 astat->size = tvattr.va_size;
218 astat->mtime = tvattr.va_mtime.tv_sec;
219 astat->atime = tvattr.va_atime.tv_sec;
221 ReleaseWriteLock(&afs_xosi);
226 osi_UFSClose(register struct osi_file *afile)
228 AFS_STATCNT(osi_Close);
230 #ifdef AFS_DARWIN80_ENV
231 vnode_close(afile->vnode, O_RDWR, afs_osi_ctxtp);
233 AFS_RELE(afile->vnode);
237 osi_FreeSmallSpace(afile);
242 osi_UFSTruncate(register struct osi_file *afile, afs_int32 asize)
244 afs_ucred_t *oldCred;
246 register afs_int32 code;
247 struct osi_stat tstat;
248 AFS_STATCNT(osi_Truncate);
250 /* This routine only shrinks files, and most systems
251 * have very slow truncates, even when the file is already
252 * small enough. Check now and save some time.
254 code = afs_osi_Stat(afile, &tstat);
255 if (code || tstat.size <= asize)
257 ObtainWriteLock(&afs_xosi, 321);
259 #ifdef AFS_DARWIN80_ENV
261 VATTR_SET(&tvattr, va_size, asize);
262 code = vnode_setattr(afile->vnode, &tvattr, afs_osi_ctxtp);
265 tvattr.va_size = asize;
266 code = VOP_SETATTR(afile->vnode, &tvattr, &afs_osi_cred, current_proc());
269 ReleaseWriteLock(&afs_xosi);
274 #ifdef AFS_DARWIN80_ENV
275 osi_DisableAtimes(vnode_t avp)
277 osi_DisableAtimes(struct vnode *avp)
280 #ifdef AFS_DARWIN80_ENV
281 struct vnode_attr vap;
284 VATTR_CLEAR_SUPPORTED(&vap, va_access_time);
285 vnode_setattr(avp, &vap, afs_osi_ctxtp);
287 if (afs_CacheFSType == AFS_APPL_UFS_CACHE) {
288 struct inode *ip = VTOI(avp);
289 ip->i_flag &= ~IN_ACCESS;
291 #ifdef VTOH /* can't do this without internals */
292 else if (afs_CacheFSType == AFS_APPL_HFS_CACHE) {
293 struct hfsnode *hp = VTOH(avp);
294 hp->h_nodeflags &= ~IN_ACCESS;
301 /* Generic read interface */
303 afs_osi_Read(register struct osi_file *afile, int offset, void *aptr,
306 afs_ucred_t *oldCred;
308 register afs_int32 code;
309 #ifdef AFS_DARWIN80_ENV
312 AFS_STATCNT(osi_Read);
315 * If the osi_file passed in is NULL, panic only if AFS is not shutting
316 * down. No point in crashing when we are already shutting down
319 if (!afs_shuttingdown)
320 osi_Panic("osi_Read called with null param");
326 afile->offset = offset;
328 #ifdef AFS_DARWIN80_ENV
329 uio=uio_create(1, afile->offset, AFS_UIOSYS, UIO_READ);
330 uio_addiov(uio, CAST_USER_ADDR_T(aptr), asize);
331 code = VNOP_READ(afile->vnode, uio, IO_UNIT, afs_osi_ctxtp);
332 resid = AFS_UIO_RESID(uio);
336 gop_rdwr(UIO_READ, afile->vnode, (caddr_t) aptr, asize, afile->offset,
337 AFS_UIOSYS, IO_UNIT, &afs_osi_cred, &resid);
341 code = asize - resid;
342 afile->offset += code;
343 osi_DisableAtimes(afile->vnode);
345 afs_Trace2(afs_iclSetp, CM_TRACE_READFAILED, ICL_TYPE_INT32, resid,
346 ICL_TYPE_INT32, code);
352 /* Generic write interface */
354 afs_osi_Write(register struct osi_file *afile, afs_int32 offset, void *aptr,
357 afs_ucred_t *oldCred;
359 register afs_int32 code;
360 #ifdef AFS_DARWIN80_ENV
363 AFS_STATCNT(osi_Write);
365 osi_Panic("afs_osi_Write called with null param");
367 afile->offset = offset;
370 #ifdef AFS_DARWIN80_ENV
371 uio=uio_create(1, afile->offset, AFS_UIOSYS, UIO_WRITE);
372 uio_addiov(uio, CAST_USER_ADDR_T(aptr), asize);
373 code = VNOP_WRITE(afile->vnode, uio, IO_UNIT, afs_osi_ctxtp);
374 resid = AFS_UIO_RESID(uio);
378 gop_rdwr(UIO_WRITE, afile->vnode, (caddr_t) aptr, asize,
379 afile->offset, AFS_UIOSYS, IO_UNIT, &afs_osi_cred,
385 code = asize - resid;
386 afile->offset += code;
391 (*afile->proc) (afile, code);
401 shutdown_osifile(void)
403 AFS_STATCNT(shutdown_osifile);
404 if (afs_cold_shutdown) {
405 afs_osicred_initialized = 0;