5 #include <afs/sysincludes.h> /* Standard vendor system headers */
6 #include <afsincludes.h> /* Afs-based standard headers */
7 #include <afs/afs_stats.h> /* statistics */
8 #include <sys/malloc.h>
11 #include <sys/module.h>
12 #include <sys/sysproto.h>
13 #include <sys/syscall.h>
14 #include <sys/sysent.h>
16 struct vcache *afs_globalVp = NULL;
17 struct mount *afs_globalVFS = NULL;
18 int afs_pbuf_freecnt = -1;
20 extern int Afs_xsetgroups();
21 extern int afs_xioctl();
23 #if !defined(AFS_FBSD90_ENV) && !defined(AFS_FBSD82_ENV)
24 static sy_call_t *old_handler;
26 static struct sysent old_sysent;
28 static struct sysent afs_sysent = {
30 (sy_call_t *) afs3_syscall, /* sy_call_t *sy_call */
32 AUE_NULL, /* au_event_t sy_auevent */
34 NULL, /* systrace_args_funt_t sy_systrace_args_func */
35 0, /* u_int32_t sy_entry */
36 0, /* u_int32_t sy_return */
38 0, /* u_int32_t sy_flags */
39 0 /* u_int32_t sy_thrcnt */
47 afs_init(struct vfsconf *vfc)
50 int offset = AFS_SYSCALL;
51 #if defined(AFS_FBSD90_ENV) || defined(AFS_FBSD82_ENV)
52 code = syscall_register(&offset, &afs_sysent, &old_sysent);
54 printf("AFS_SYSCALL in use, error %i. aborting\n", code);
58 if (sysent[AFS_SYSCALL].sy_call != nosys
59 && sysent[AFS_SYSCALL].sy_call != lkmnosys) {
60 printf("AFS_SYSCALL in use. aborting\n");
65 afs_pbuf_freecnt = nswbuf / 2 + 1;
66 #if !defined(AFS_FBSD90_ENV) && !defined(AFS_FBSD82_ENV)
67 old_handler = sysent[AFS_SYSCALL].sy_call;
68 sysent[AFS_SYSCALL].sy_call = afs3_syscall;
69 sysent[AFS_SYSCALL].sy_narg = 5;
75 afs_uninit(struct vfsconf *vfc)
77 #if defined(AFS_FBSD90_ENV) || defined(AFS_FBSD82_ENV)
78 int offset = AFS_SYSCALL;
83 #if defined(AFS_FBSD90_ENV) || defined(AFS_FBSD82_ENV)
84 syscall_deregister(&offset, &old_sysent);
86 sysent[AFS_SYSCALL].sy_narg = 0;
87 sysent[AFS_SYSCALL].sy_call = old_handler;
93 afs_start(struct mount *mp, int flags, struct thread *p)
95 return (0); /* nothing to do. ? */
99 #if defined(AFS_FBSD80_ENV)
100 afs_omount(struct mount *mp, char *path, caddr_t data)
101 #elif defined(AFS_FBSD53_ENV)
102 afs_omount(struct mount *mp, char *path, caddr_t data, struct thread *p)
104 afs_omount(struct mount *mp, char *path, caddr_t data, struct nameidata *ndp,
108 /* ndp contains the mounted-from device. Just ignore it.
109 * we also don't care about our thread struct. */
112 if (mp->mnt_flag & MNT_UPDATE)
116 AFS_STATCNT(afs_mount);
118 if (afs_globalVFS) { /* Don't allow remounts. */
124 mp->vfs_bsize = 8192;
126 #ifdef AFS_FBSD70_ENV /* XXX 70? */
128 mp->mnt_flag &= ~MNT_LOCAL;
129 mp->mnt_kern_flag |= MNTK_MPSAFE; /* solid steel */
131 mp->mnt_stat.f_iosize = 8192;
134 copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size);
136 bcopy("/afs", mp->mnt_stat.f_mntonname, size = 4);
137 memset(mp->mnt_stat.f_mntonname + size, 0, MNAMELEN - size);
138 memset(mp->mnt_stat.f_mntfromname, 0, MNAMELEN);
139 strcpy(mp->mnt_stat.f_mntfromname, "AFS");
140 /* null terminated string "AFS" will fit, just leave it be. */
141 strcpy(mp->mnt_stat.f_fstypename, "afs");
142 #ifdef AFS_FBSD70_ENV
146 #ifdef AFS_FBSD80_ENV
147 afs_statfs(mp, &mp->mnt_stat);
149 afs_statfs(mp, &mp->mnt_stat, p);
155 #ifdef AFS_FBSD53_ENV
157 #ifdef AFS_FBSD80_ENV
158 afs_mount(struct mount *mp)
160 afs_mount(struct mount *mp, struct thread *td)
163 #ifdef AFS_FBSD80_ENV
164 return afs_omount(mp, NULL, NULL);
166 return afs_omount(mp, NULL, NULL, td);
171 #ifdef AFS_FBSD60_ENV
173 #ifdef AFS_FBSD80_ENV
174 afs_cmount(struct mntarg *ma, void *data, int flags)
176 afs_cmount(struct mntarg *ma, void *data, int flags, struct thread *td)
179 return kernel_mount(ma, flags);
184 #ifdef AFS_FBSD80_ENV
185 afs_unmount(struct mount *mp, int flags)
187 afs_unmount(struct mount *mp, int flags, struct thread *p)
193 * Release any remaining vnodes on this mount point.
194 * The `1' means that we hold one extra reference on
195 * the root vnode (this is just a guess right now).
196 * This has to be done outside the global lock.
198 #if defined(AFS_FBSD80_ENV)
199 error = vflush(mp, 1, (flags & MNT_FORCE) ? FORCECLOSE : 0, curthread);
200 #elif defined(AFS_FBSD53_ENV)
201 error = vflush(mp, 1, (flags & MNT_FORCE) ? FORCECLOSE : 0, p);
203 error = vflush(mp, 1, (flags & MNT_FORCE) ? FORCECLOSE : 0);
208 AFS_STATCNT(afs_unmount);
218 #if defined(AFS_FBSD80_ENV)
219 afs_root(struct mount *mp, int flags, struct vnode **vpp)
220 #elif defined(AFS_FBSD60_ENV)
221 afs_root(struct mount *mp, int flags, struct vnode **vpp, struct thread *td)
222 #elif defined(AFS_FBSD53_ENV)
223 afs_root(struct mount *mp, struct vnode **vpp, struct thread *td)
225 afs_root(struct mount *mp, struct vnode **vpp)
229 struct vrequest treq;
230 struct vcache *tvp = 0;
231 #if !defined(AFS_FBSD53_ENV) || defined(AFS_FBSD80_ENV)
232 struct thread *td = curthread;
234 struct ucred *cr = osi_curcred();
237 AFS_STATCNT(afs_root);
239 if (afs_globalVp && (afs_globalVp->f.states & CStatd)) {
245 afs_PutVCache(afs_globalVp);
246 /* vrele() needed here or not? */
249 if (!(error = afs_InitReq(&treq, cr)) && !(error = afs_CheckInit())) {
250 tvp = afs_GetVCache(&afs_rootFid, &treq, NULL, NULL);
251 /* we really want this to stay around */
259 struct vnode *vp = AFSTOV(tvp);
261 ASSERT_VI_UNLOCKED(vp, "afs_root");
264 * I'm uncomfortable about this. Shouldn't this happen at a
265 * higher level, and shouldn't we busy the top-level directory
266 * to prevent recycling?
268 error = vget(vp, LK_EXCLUSIVE | LK_RETRY, td);
269 vp->v_vflag |= VV_ROOT;
278 afs_Trace2(afs_iclSetp, CM_TRACE_VFSROOT, ICL_TYPE_POINTER, tvp ? AFSTOV(tvp) : NULL,
279 ICL_TYPE_INT32, error);
286 #ifdef AFS_FBSD80_ENV
287 afs_statfs(struct mount *mp, struct statfs *abp)
289 afs_statfs(struct mount *mp, struct statfs *abp, struct thread *p)
293 AFS_STATCNT(afs_statfs);
295 abp->f_bsize = mp->vfs_bsize;
296 abp->f_iosize = mp->vfs_bsize;
298 /* Fake a high number below to satisfy programs that use the statfs call
299 * to make sure that there's enough space in the device partition before
300 * storing something there.
302 abp->f_blocks = abp->f_bfree = abp->f_bavail = abp->f_files =
303 abp->f_ffree = 2000000;
305 abp->f_fsid.val[0] = mp->mnt_stat.f_fsid.val[0];
306 abp->f_fsid.val[1] = mp->mnt_stat.f_fsid.val[1];
307 if (abp != &mp->mnt_stat) {
308 abp->f_type = mp->mnt_vfc->vfc_typenum;
309 memcpy((caddr_t) & abp->f_mntonname[0],
310 (caddr_t) mp->mnt_stat.f_mntonname, MNAMELEN);
311 memcpy((caddr_t) & abp->f_mntfromname[0],
312 (caddr_t) mp->mnt_stat.f_mntfromname, MNAMELEN);
320 #if defined(AFS_FBSD80_ENV)
321 afs_sync(struct mount *mp, int waitfor)
322 #elif defined(AFS_FBSD60_ENV)
323 afs_sync(struct mount *mp, int waitfor, struct thread *td)
325 afs_sync(struct mount *mp, int waitfor, struct ucred *cred, struct thread *p)
331 #ifdef AFS_FBSD60_ENV
332 struct vfsops afs_vfsops = {
333 .vfs_init = afs_init,
334 .vfs_mount = afs_mount,
335 .vfs_cmount = afs_cmount,
336 .vfs_root = afs_root,
337 .vfs_statfs = afs_statfs,
338 .vfs_sync = afs_sync,
339 .vfs_uninit = afs_uninit,
340 .vfs_unmount = afs_unmount,
341 .vfs_sysctl = vfs_stdsysctl,
344 struct vfsops afs_vfsops = {
345 #ifdef AFS_FBSD53_ENV