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;
62 #ifdef AFS_64BIT_CLIENT
63 afsp->vfs_flag |= VFS_DEVMOUNT;
64 #endif /* AFS_64BIT_CLIENT */
66 afsp->vfs_fsid.val[0] = AFS_VFSMAGIC; /* magic */
67 afsp->vfs_fsid.val[1] = AFS_VFSFSID;
69 /* For AFS, we don't allow file over file mounts. */
70 if (afsp->vfs_mntdover->v_type != VDIR)
72 /* try to get the root vnode, but don't worry if you don't. The actual
73 * setting of the root vnode (vfs_mntd) is done in afs_root, so that it
74 * get re-eval'd at the right time if things aren't working when we
75 * first try the mount.
77 afs_root_nolock(afsp, &afsrootvp);
79 afsp->vfs_mntdover->v_mvfsp = afsp;
80 afsp->vfs_mdata->vmt_flags |= MNT_REMOTE;
82 #ifdef AFS_AIX_IAUTH_ENV
83 if (afs_iauth_register()<0)
84 afs_warn("Can't register AFS iauth interface.\n");
90 static int afs_unmount (struct vfs *afsp, int flag)
94 AFS_STATCNT(afs_unmount);
103 static int afs_root_nolock (struct vfs *afsp, struct vnode **avpp)
105 register afs_int32 code = 0;
106 struct vrequest treq;
107 register struct vcache *tvp=0;
109 AFS_STATCNT(afs_root);
110 if (afs_globalVp && (afs_globalVp->states & CStatd)) {
115 afs_PutVCache(afs_globalVp);
119 if (!(code = afs_InitReq(&treq, credp)) &&
120 !(code = afs_CheckInit())) {
121 tvp = afs_GetVCache(&afs_rootFid, &treq, NULL, NULL);
122 /* we really want this to stay around */
131 VN_HOLD(AFSTOV(tvp));
133 VN_LOCK(AFSTOV(tvp));
134 AFSTOV(tvp)->v_flag |= VROOT; /* No-op on Ultrix 2.2 */
135 VN_UNLOCK(AFSTOV(tvp));
137 afs_globalVFS = afsp;
139 afsp->vfs_mntd = *avpp;
142 afs_Trace2(afs_iclSetp, CM_TRACE_VFSROOT, ICL_TYPE_POINTER, *avpp,
143 ICL_TYPE_INT32, code);
148 static int afs_root (struct vfs *afsp, struct vnode **avpp)
153 code = afs_root_nolock(afsp, avpp);
158 static int afs_statfs(struct vfs *afsp, struct statfs *abp,
163 AFS_STATCNT(afs_statfs);
167 abp->f_bsize = afsp->vfs_bsize;
168 abp->f_blocks = abp->f_bfree = abp->f_bavail = abp->f_files =
169 abp->f_ffree = 9000000;
170 abp->f_vfstype = AFS_VFSFSID;
171 abp->f_vfsnumber = afsp->vfs_number;
172 abp->f_vfsoff = abp->f_vfslen = abp->f_vfsvers = -1;
173 abp->f_fsize = 4096; /* fundamental filesystem block size */
174 abp->f_fsid = afsp->vfs_fsid;
175 (void) strcpy(abp->f_fname, "/afs");
176 (void) strcpy(abp->f_fpack, "AFS");
177 abp->f_name_max = 256;
183 static int afs_sync()
187 AFS_STATCNT(afs_sync);
194 /* Note that the cred is only for AIX 4.1.5+ and AIX 4.2+ */
195 static int afs_vget(struct vfs *vfsp, struct vnode **avcp, struct fileid *fidp,
199 struct vrequest treq;
202 AFS_STATCNT(afs_vget);
205 #ifdef AFS_AIX_IAUTH_ENV
206 /* If the exporter is off and this is an nfsd, fail immediately. */
207 if (AFS_NFSXLATORREQ(credp)
208 && !(afs_nfsexporter->exp_states & EXP_EXPORTED)) {
213 if ((code = afs_InitReq(&treq, credp))==0) {
214 code = afs_osi_vget((struct vcache**)avcp, fidp, &treq);
217 afs_Trace3(afs_iclSetp, CM_TRACE_VGET, ICL_TYPE_POINTER, *avcp,
218 ICL_TYPE_INT32, treq.uid, ICL_TYPE_FID, fidp);
219 code = afs_CheckCode(code, &treq, 42);
225 static int afs_badop()
231 struct vfsops Afs_vfsops = {
238 afs_badop, /* vfs_cntl */
239 afs_badop /* vfs_quotactl */
241 ,afs_badop /* vfs_syncvfs */
246 * VFS is initialized in osi_config.c