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 SOLARIS
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 */
21 #include "../h/modctl.h"
22 #include "../h/syscall.h"
27 struct vfs *afs_globalVFS = 0;
28 struct vcache *afs_globalVp = 0;
30 #if defined(AFS_SUN57_64BIT_ENV)
31 extern struct sysent sysent32[];
36 int afs_mount(struct vfs *afsp, struct vnode *amvp, struct mounta *uap,
37 struct AFS_UCRED *credp)
42 AFS_STATCNT(afs_mount);
46 afsp->vfs_fstype = afsfstype;
48 if (afs_globalVFS) { /* Don't allow remounts. */
53 afsp->vfs_bsize = 8192;
54 afsp->vfs_fsid.val[0] = AFS_VFSMAGIC; /* magic */
55 afsp->vfs_fsid.val[1] = AFS_VFSFSID;
56 afsp->vfs_dev = AFS_VFSMAGIC;
62 #if defined(AFS_SUN58_ENV)
63 int afs_unmount (struct vfs *afsp, int flag, struct AFS_UCRED *credp)
65 int afs_unmount (struct vfs *afsp, struct AFS_UCRED *credp)
69 AFS_STATCNT(afs_unmount);
80 int afs_root (struct vfs *afsp, struct vnode **avpp)
82 register afs_int32 code = 0;
84 register struct vcache *tvp=0;
85 struct proc *proc = ttoproc(curthread);
86 struct vnode *vp = afsp->vfs_vnodecovered;
89 /* Potential deadlock:
90 * afs_root is called with the Vnode's v_lock locked. Set VVFSLOCK
91 * and drop the v_lock if we need to make an RPC to complete this
92 * request. There used to be a deadlock on the global lock until
93 * we stopped calling iget while holding the global lock.
98 AFS_STATCNT(afs_root);
100 if (afs_globalVp && (afs_globalVp->states & CStatd)) {
103 if (MUTEX_HELD(&vp->v_lock)) {
104 vp->v_flag |= VVFSLOCK;
106 mutex_exit(&vp->v_lock);
108 if (!(code = afs_InitReq(&treq, proc->p_cred)) &&
109 !(code = afs_CheckInit())) {
110 tvp = afs_GetVCache(&afs_rootFid, &treq, (afs_int32 *)0,
111 (struct vcache*)0, WRITE_LOCK);
112 /* we really want this to stay around */
120 VN_HOLD((struct vnode *)tvp);
121 mutex_enter(&(((struct vnode*)tvp)->v_lock));
122 tvp->v.v_flag |= VROOT;
123 mutex_exit(&(((struct vnode*)tvp)->v_lock));
125 afs_globalVFS = afsp;
126 *avpp = (struct vnode *) tvp;
129 afs_Trace2(afs_iclSetp, CM_TRACE_VFSROOT, ICL_TYPE_POINTER, *avpp,
130 ICL_TYPE_INT32, code);
134 mutex_enter(&vp->v_lock);
135 vp->v_flag &= ~VVFSLOCK;
136 if (vp->v_flag & VVFSWAIT) {
137 vp->v_flag &= ~VVFSWAIT;
138 cv_broadcast(&vp->v_cv);
146 int afs_statvfs(struct vfs *afsp, struct statvfs64 *abp)
148 int afs_statvfs(struct vfs *afsp, struct statvfs *abp)
153 AFS_STATCNT(afs_statfs);
155 abp->f_frsize = 1024;
156 abp->f_favail = 9000000;
157 abp->f_bsize = afsp->vfs_bsize;
158 abp->f_blocks = abp->f_bfree = abp->f_bavail = abp->f_files =
159 abp->f_ffree = 9000000;
160 abp->f_fsid = (AFS_VFSMAGIC << 16) || AFS_VFSFSID;
166 int afs_sync(struct vfs *afsp, short flags, struct AFS_UCRED *credp)
171 int afs_vget(struct vfs *afsp, struct vnode **avcp, struct fid *fidp)
173 cred_t *credp = CRED();
174 struct vrequest treq;
179 AFS_STATCNT(afs_vget);
182 if (!(code = afs_InitReq(&treq, credp))) {
183 code = afs_osi_vget((struct vcache**)avcp, fidp, &treq);
186 afs_Trace3(afs_iclSetp, CM_TRACE_VGET, ICL_TYPE_POINTER, *avcp,
187 ICL_TYPE_INT32, treq.uid, ICL_TYPE_FID, fidp);
188 code = afs_CheckCode(code, &treq, 42);
194 /* This is only called by vfs_mount when afs is going to be mounted as root.
195 * Since we don't support diskless clients we shouldn't come here.
198 afs_mountroot(struct vfs *afsp, whymountroot_t why)
201 AFS_STATCNT(afs_mountroot);
207 /* afs_swapvp is called to setup swapping over the net for diskless clients.
211 afs_swapvp(struct vfs *afsp, struct vnode **avpp, char *nm)
214 AFS_STATCNT(afs_swapvp);
221 struct vfsops Afs_vfsops = {
230 #if defined(AFS_SUN58_ENV)
237 * afsinit - intialize VFS
239 int (*ufs_iallocp)();
240 void (*ufs_iupdatp)();
242 void (*ufs_itimes_nolockp)();
244 struct streamtab *udp_infop = 0;
245 struct ill_s *ill_g_headp = 0;
249 #if !defined(AFS_NONFSTRANS)
250 int (*nfs_rfsdisptab_v2)();
251 int (*nfs_rfsdisptab_v3)();
252 int (*nfs_acldisptab_v2)();
253 int (*nfs_acldisptab_v3)();
255 int (*nfs_checkauth)();
258 extern Afs_syscall();
260 afsinit(struct vfssw *vfsswp, int fstype)
262 extern int afs_xioctl(), afs_xflock();
263 extern int afs_xsetgroups();
265 AFS_STATCNT(afsinit);
267 sysent[SYS_setgroups].sy_callc = afs_xsetgroups;
268 sysent[SYS_ioctl].sy_call = afs_xioctl;
270 #if defined(AFS_SUN57_64BIT_ENV)
271 sysent32[SYS_setgroups].sy_callc = afs_xsetgroups;
272 sysent32[SYS_ioctl].sy_call = afs_xioctl;
275 vfsswp->vsw_vfsops = &Afs_vfsops;
279 #if !defined(AFS_NONFSTRANS)
280 nfs_rfsdisptab_v2 = (int (*)()) modlookup("nfssrv", "rfsdisptab_v2");
281 if ( !nfs_rfsdisptab_v2 ) {
282 afs_warn("warning : rfsdisptab_v2 NOT FOUND\n");
284 if (nfs_rfsdisptab_v2) {
285 nfs_acldisptab_v2 = (int (*)()) modlookup("nfssrv", "acldisptab_v2");
286 if ( !nfs_acldisptab_v2 ) {
287 afs_warn("warning : acldisptab_v2 NOT FOUND\n");
290 afs_xlatorinit_v2(nfs_rfsdisptab_v2, nfs_acldisptab_v2);
293 nfs_rfsdisptab_v3 = (int (*)()) modlookup("nfssrv", "rfsdisptab_v3");
294 if ( !nfs_rfsdisptab_v3 ) {
295 afs_warn("warning : rfsdisptab_v3 NOT FOUND\n");
297 if (nfs_rfsdisptab_v3) {
298 nfs_acldisptab_v3 = (int (*)()) modlookup("nfssrv", "acldisptab_v3");
299 if ( !nfs_acldisptab_v3 ) {
300 afs_warn("warning : acldisptab_v3 NOT FOUND\n");
303 afs_xlatorinit_v3(nfs_rfsdisptab_v3, nfs_acldisptab_v3);
307 nfs_checkauth = (int (*)()) modlookup("nfssrv", "checkauth");
308 if ( !nfs_checkauth ) afs_warn("nfs_checkauth not initialised");
310 ufs_iallocp = (int (*)()) modlookup("ufs", "ufs_ialloc");
311 ufs_iupdatp = (void (*)()) modlookup("ufs", "ufs_iupdat");
312 ufs_igetp = (int (*)()) modlookup("ufs", "ufs_iget");
313 ufs_itimes_nolockp = (void (*)()) modlookup("ufs", "ufs_itimes_nolock");
314 udp_infop = (struct streamtab *) modlookup("udp", "udpinfo");
315 ill_g_headp = (struct ill_s *) modlookup("ip", "ill_g_head");
317 if ( !ufs_iallocp || !ufs_iupdatp || !ufs_itimes_nolockp ||
318 !ufs_igetp || !udp_infop || !ill_g_headp )
319 afs_warn("AFS to UFS mapping cannot be fully initialised\n");
326 static struct vfssw afs_vfw = {
333 static struct sysent afssysent = {
339 /* inter-module dependencies */
340 char _depends_on[] = "drv/ip drv/udp strmod/rpcmod";
343 * Info/Structs to link the afs module into the kernel
345 extern struct mod_ops mod_fsops;
346 extern struct mod_ops mod_syscallops;
348 static struct modlfs afsmodlfs = {
354 static struct modlsys afsmodlsys = {
356 "afs syscall interface",
360 /** The two structures afssysent32 and afsmodlsys32 are being added
361 * for supporting 32 bit syscalls. In Solaris 7 there are two system
362 * tables viz. sysent ans sysent32. 32 bit applications use sysent32.
363 * Since most of our user space binaries are going to be 32 bit
364 * we need to attach to sysent32 also. Note that the entry into AFS
365 * land still happens through Afs_syscall irrespective of whether we
366 * land here from sysent or sysent32
369 #if defined(AFS_SUN57_64BIT_ENV)
370 extern struct mod_ops mod_syscallops32;
372 static struct modlsys afsmodlsys32 = {
374 "afs syscall interface(32 bit)",
380 static struct modlinkage afs_modlinkage = {
383 #ifdef AFS_SUN57_64BIT_ENV
384 (void *)&afsmodlsys32,
390 /** This is the function that modload calls when loading the afs kernel
391 * extensions. The solaris modload program searches for the _init
392 * function in a module and calls it when modloading
397 char *sysn, *mod_getsysname();
399 extern char *sysbind;
400 extern struct bind *sb_hashtab[];
401 struct modctl *mp = 0;
403 if ((!(mp = mod_find_by_filename("fs", "ufs")) &&
404 !(mp = mod_find_by_filename(NULL, "/kernel/fs/ufs")) &&
405 !(mp = mod_find_by_filename(NULL, "sys/ufs"))) ||
406 (mp && !mp->mod_installed)) {
407 printf("ufs module must be loaded before loading afs; use modload /kernel/fs/ufs\n");
410 #ifndef AFS_NONFSTRANS
411 #if defined(AFS_SUN55_ENV)
412 if ((!(mp = mod_find_by_filename("misc", "nfssrv")) &&
413 !(mp = mod_find_by_filename(NULL, NFSSRV)) &&
414 !(mp = mod_find_by_filename(NULL, NFSSRV_V9))) ||
415 (mp && !mp->mod_installed)) {
416 printf("misc/nfssrv module must be loaded before loading afs with nfs-xlator\n");
420 #if defined(AFS_SUN52_ENV)
421 if ((!(mp = mod_find_by_filename("fs", "nfs")) &&
422 !(mp = mod_find_by_filename(NULL, "/kernel/fs/nfs")) &&
423 !(mp = mod_find_by_filename(NULL, "sys/nfs"))) ||
424 (mp && !mp->mod_installed)) {
425 printf("fs/nfs module must be loaded before loading afs with nfs-xlator\n");
432 * Re-read the /etc/name_to_sysnum file to make sure afs isn't added after
433 * reboot. Ideally we would like to call modctl_read_sysbinding_file() but
434 * unfortunately in Solaris 2.2 it became a local function so we have to do
435 * the read_binding_file() direct call with the appropriate text file and
436 * system call hashtable. make_syscallname actually copies "afs" to the
437 * proper slot entry and we also actually have to properly initialize the
438 * global sysent[AFS_SYSCALL] entry!
442 #define SYSBINDFILE "/etc/name_to_sysnum"
444 read_binding_file(SYSBINDFILE, sb_hashtab);
446 read_binding_file(sysbind, sb_hashtab);
448 #if !defined(AFS_SUN58_ENV)
449 make_syscallname("afs", AFS_SYSCALL);
452 if (sysent[AFS_SYSCALL].sy_call == nosys) {
453 if ((sysn = mod_getsysname(AFS_SYSCALL)) != NULL) {
454 sysent[AFS_SYSCALL].sy_lock =
455 (krwlock_t *) kobj_zalloc(sizeof (krwlock_t), KM_SLEEP);
456 rw_init(sysent[AFS_SYSCALL].sy_lock, "afs_syscall",
460 RW_DEFAULT, DEFAULT_WT);
465 osi_Init(); /* initialize global lock, etc */
467 code = mod_install(&afs_modlinkage);
472 struct modinfo *modp;
476 code = mod_info(&afs_modlinkage, modp);
486 code = mod_remove(&afs_modlinkage);