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 * osi_vfsops.c for AIX
13 #include <afsconfig.h>
14 #include "../afs/param.h"
18 #include "../afs/sysincludes.h" /* Standard vendor system headers */
19 #include "../afs/afsincludes.h" /* Afs-based standard headers */
20 #include "../afs/afs_stats.h" /* statistics stuff */
23 #ifdef AFS_AIX_IAUTH_ENV
24 #include "../afs/nfsclient.h"
25 #include "../afs/exporter.h"
26 extern struct afs_exporter *afs_nfsexporter;
29 #define AFS_VFSLOCK_DECL register int glockOwner = ISAFS_GLOCK()
30 #define AFS_VFSLOCK() if (!glockOwner) AFS_GLOCK()
31 #define AFS_VFSUNLOCK() if (!glockOwner) AFS_GUNLOCK()
33 struct vfs *afs_globalVFS = 0;
34 struct vcache *afs_globalVp = 0;
37 static int afs_root_nolock (struct vfs *afsp, struct vnode **avpp);
39 static int afs_mount(afsp, path, data)
44 struct vnode *afsrootvp = NULL;
48 AFS_STATCNT(afs_mount);
51 /* Don't allow remounts since some system (like AIX) don't handle
55 return (setuerror(EBUSY));
60 afsp->vfs_bsize = 8192;
61 #ifdef AFS_64BIT_CLIENT
62 afsp->vfs_flag |= VFS_DEVMOUNT;
63 #endif /* AFS_64BIT_CLIENT */
65 afsp->vfs_fsid.val[0] = AFS_VFSMAGIC; /* magic */
66 afsp->vfs_fsid.val[1] = AFS_VFSFSID;
68 /* For AFS, we don't allow file over file mounts. */
69 if (afsp->vfs_mntdover->v_type != VDIR)
71 /* try to get the root vnode, but don't worry if you don't. The actual
72 * setting of the root vnode (vfs_mntd) is done in afs_root, so that it
73 * get re-eval'd at the right time if things aren't working when we
74 * first try the mount.
76 afs_root_nolock(afsp, &afsrootvp);
78 afsp->vfs_mntdover->v_mvfsp = afsp;
79 afsp->vfs_mdata->vmt_flags |= MNT_REMOTE;
81 #ifdef AFS_AIX_IAUTH_ENV
82 if (afs_iauth_register()<0)
83 afs_warn("Can't register AFS iauth interface.\n");
89 static int afs_unmount (struct vfs *afsp, int flag)
93 AFS_STATCNT(afs_unmount);
102 static int afs_root_nolock (struct vfs *afsp, struct vnode **avpp)
104 register afs_int32 code = 0;
105 struct vrequest treq;
106 register struct vcache *tvp=0;
108 AFS_STATCNT(afs_root);
109 if (afs_globalVp && (afs_globalVp->states & CStatd)) {
114 if (!(code = afs_InitReq(&treq, credp)) &&
115 !(code = afs_CheckInit())) {
116 tvp = afs_GetVCache(&afs_rootFid, &treq, (afs_int32 *)0,
117 (struct vcache*)0, WRITE_LOCK);
118 /* we really want this to stay around */
127 VN_HOLD((struct vnode *)tvp);
129 VN_LOCK((struct vnode *)tvp);
130 tvp->v.v_flag |= VROOT; /* No-op on Ultrix 2.2 */
131 VN_UNLOCK((struct vnode *)tvp);
133 afs_globalVFS = afsp;
134 *avpp = (struct vnode *) tvp;
135 afsp->vfs_mntd = *avpp;
138 afs_Trace2(afs_iclSetp, CM_TRACE_VFSROOT, ICL_TYPE_POINTER, *avpp,
139 ICL_TYPE_INT32, code);
144 static int afs_root (struct vfs *afsp, struct vnode **avpp)
149 code = afs_root_nolock(afsp, avpp);
154 static int afs_statfs(struct vfs *afsp, struct statfs *abp,
159 AFS_STATCNT(afs_statfs);
163 abp->f_bsize = afsp->vfs_bsize;
164 abp->f_blocks = abp->f_bfree = abp->f_bavail = abp->f_files =
165 abp->f_ffree = 9000000;
166 abp->f_vfstype = AFS_VFSFSID;
167 abp->f_vfsnumber = afsp->vfs_number;
168 abp->f_vfsoff = abp->f_vfslen = abp->f_vfsvers = -1;
169 abp->f_fsize = 4096; /* fundamental filesystem block size */
170 abp->f_fsid = afsp->vfs_fsid;
171 (void) strcpy(abp->f_fname, "/afs");
172 (void) strcpy(abp->f_fpack, "AFS");
173 abp->f_name_max = 256;
179 static int afs_sync()
183 AFS_STATCNT(afs_sync);
190 /* Note that the cred is only for AIX 4.1.5+ and AIX 4.2+ */
191 static int afs_vget(struct vfs *vfsp, struct vnode **avcp, struct fileid *fidp,
195 struct vrequest treq;
198 AFS_STATCNT(afs_vget);
201 #ifdef AFS_AIX_IAUTH_ENV
202 /* If the exporter is off and this is an nfsd, fail immediately. */
203 if (AFS_NFSXLATORREQ(credp)
204 && !(afs_nfsexporter->exp_states & EXP_EXPORTED)) {
209 if ((code = afs_InitReq(&treq, credp))==0) {
210 code = afs_osi_vget((struct vcache**)avcp, fidp, &treq);
213 afs_Trace3(afs_iclSetp, CM_TRACE_VGET, ICL_TYPE_POINTER, *avcp,
214 ICL_TYPE_INT32, treq.uid, ICL_TYPE_FID, fidp);
215 code = afs_CheckCode(code, &treq, 42);
221 static int afs_badop()
227 struct vfsops Afs_vfsops = {
234 afs_badop, /* vfs_cntl */
235 afs_badop /* vfs_quotactl */
239 * VFS is initialized in osi_config.c