#include <afsconfig.h>
#include "afs/param.h"
-RCSID
- ("$Header$");
#include "afs/sysincludes.h" /* Standard vendor system headers */
#include "afsincludes.h" /* Afs-based standard headers */
#include "afs/afs_stats.h" /* statistics stuff */
#include "h/modctl.h"
#include "h/syscall.h"
+#if defined(AFS_SUN511_ENV)
+#include <sys/vfs_opreg.h>
+#endif
#include <sys/kobj.h>
-
+#ifdef AFS_SUN58_ENV
+# include <sys/mount.h>
+#endif
struct vfs *afs_globalVFS = 0;
struct vcache *afs_globalVp = 0;
int
afs_mount(struct vfs *afsp, struct vnode *amvp, struct mounta *uap,
- struct AFS_UCRED *credp)
+ afs_ucred_t *credp)
{
AFS_GLOCK();
AFS_STATCNT(afs_mount);
- if (!suser(credp)) {
+#if defined(AFS_SUN510_ENV)
+ if (secpolicy_fs_mount(credp, amvp, afsp) != 0) {
+#else
+ if (!afs_osi_suser(credp)) {
+#endif
AFS_GUNLOCK();
- return EPERM;
+ return (EPERM);
}
afsp->vfs_fstype = afsfstype;
if (afs_globalVFS) { /* Don't allow remounts. */
AFS_GUNLOCK();
- return EBUSY;
+ return (EBUSY);
}
afs_globalVFS = afsp;
#if defined(AFS_SUN58_ENV)
int
-afs_unmount(struct vfs *afsp, int flag, struct AFS_UCRED *credp)
+afs_unmount(struct vfs *afsp, int flag, afs_ucred_t *credp)
#else
int
-afs_unmount(struct vfs *afsp, struct AFS_UCRED *credp)
+afs_unmount(struct vfs *afsp, afs_ucred_t *credp)
#endif
{
+ struct vcache *rootvp = NULL;
+
AFS_GLOCK();
AFS_STATCNT(afs_unmount);
- if (!suser(credp)) {
+#if defined(AFS_SUN510_ENV)
+ if (secpolicy_fs_unmount(credp, afsp) != 0) {
+#else
+ if (!afs_osi_suser(credp)) {
+#endif
+ AFS_GUNLOCK();
+ return (EPERM);
+ }
+
+#ifdef AFS_SUN58_ENV
+ if (flag & MS_FORCE) {
+ AFS_GUNLOCK();
+ return ENOTSUP;
+ }
+
+ /* We should have one reference from the caller, and one reference for the
+ * root vnode; any more and someone is still referencing something */
+ if (afsp->vfs_count > 2) {
+ AFS_GUNLOCK();
+ return EBUSY;
+ }
+
+ /* The root vnode should have one ref for the mount; any more, and someone
+ * else is using the root vnode */
+ if (afs_globalVp && VREFCOUNT_GT(afs_globalVp, 1)) {
AFS_GUNLOCK();
- return EPERM;
+ return EBUSY;
}
+
+ afsp->vfs_flag |= VFS_UNMOUNTED;
+#endif /* AFS_SUN58_ENV */
+
+ /* release the root vnode, which should be the last reference to us
+ * besides the caller of afs_unmount */
+ rootvp = afs_globalVp;
+ afs_globalVp = NULL;
+ AFS_RELE(rootvp);
+
+#ifndef AFS_SUN58_ENV
+ /* shutdown now, since afs_freevfs() will not be called */
afs_globalVFS = 0;
afs_shutdown();
+#endif /* !AFS_SUN58_ENV */
AFS_GUNLOCK();
return 0;
}
+#ifdef AFS_SUN58_ENV
+void
+afs_freevfs(struct vfs *afsp)
+{
+ AFS_GLOCK();
+
+ afs_globalVFS = 0;
+ afs_shutdown();
+
+ AFS_GUNLOCK();
+}
+#endif /* AFS_SUN58_ENV */
+
int
afs_root(struct vfs *afsp, struct vnode **avpp)
{
register afs_int32 code = 0;
struct vrequest treq;
register struct vcache *tvp = 0;
+ struct vcache *gvp;
struct proc *proc = ttoproc(curthread);
struct vnode *vp = afsp->vfs_vnodecovered;
int locked = 0;
AFS_STATCNT(afs_root);
- if (afs_globalVp && (afs_globalVp->states & CStatd)) {
+again:
+ if (afs_globalVp && (afs_globalVp->f.states & CStatd)) {
tvp = afs_globalVp;
} else {
if (MUTEX_HELD(&vp->v_lock)) {
}
if (afs_globalVp) {
- afs_PutVCache(afs_globalVp);
+ gvp = afs_globalVp;
afs_globalVp = NULL;
+ afs_PutVCache(gvp);
}
if (!(code = afs_InitReq(&treq, proc->p_cred))
tvp = afs_GetVCache(&afs_rootFid, &treq, NULL, NULL);
/* we really want this to stay around */
if (tvp) {
+ if (afs_globalVp) {
+ /* someone else got there before us! */
+ afs_PutVCache(tvp);
+ tvp = 0;
+ goto again;
+ }
afs_globalVp = tvp;
} else
code = ENOENT;
}
int
-afs_sync(struct vfs *afsp, short flags, struct AFS_UCRED *credp)
+afs_sync(struct vfs *afsp, short flags, afs_ucred_t *credp)
{
return 0;
}
}
-#ifdef AFS_SUN510_ENV
-struct fs_operation_def afs_vfsops_template[] = {
- { VFSNAME_MOUNT, afs_mount },
- { VFSNAME_UNMOUNT, afs_unmount },
- { VFSNAME_ROOT, afs_root },
- { VFSNAME_STATVFS, afs_statvfs },
- { VFSNAME_SYNC, afs_sync },
- { VFSNAME_VGET, afs_vget },
- { VFSNAME_MOUNTROOT, afs_mountroot },
- { VFSNAME_FREEVFS, fs_freevfs },
+#if defined(AFS_SUN511_ENV)
+/* The following list must always be NULL-terminated */
+static const fs_operation_def_t afs_vfsops_template[] = {
+ VFSNAME_MOUNT, { .vfs_mount = afs_mount },
+ VFSNAME_UNMOUNT, { .vfs_unmount = afs_unmount },
+ VFSNAME_ROOT, { .vfs_root = afs_root },
+ VFSNAME_STATVFS, { .vfs_statvfs = afs_statvfs },
+ VFSNAME_SYNC, { .vfs_sync = afs_sync },
+ VFSNAME_VGET, { .vfs_vget = afs_vget },
+ VFSNAME_MOUNTROOT, { .vfs_mountroot = afs_mountroot },
+ VFSNAME_FREEVFS, { .vfs_freevfs = afs_freevfs },
+ NULL, NULL
+};
+struct vfsops *afs_vfsopsp;
+#elif defined(AFS_SUN510_ENV)
+/* The following list must always be NULL-terminated */
+const fs_operation_def_t afs_vfsops_template[] = {
+ VFSNAME_MOUNT, afs_mount,
+ VFSNAME_UNMOUNT, afs_unmount,
+ VFSNAME_ROOT, afs_root,
+ VFSNAME_STATVFS, afs_statvfs,
+ VFSNAME_SYNC, afs_sync,
+ VFSNAME_VGET, afs_vget,
+ VFSNAME_MOUNTROOT, afs_mountroot,
+ VFSNAME_FREEVFS, afs_freevfs,
+ NULL, NULL
};
struct vfsops *afs_vfsopsp;
#else
afs_mountroot,
afs_swapvp,
#if defined(AFS_SUN58_ENV)
- fs_freevfs,
+ afs_freevfs,
#endif
};
#endif
int (*afs_orig_ioctl) (), (*afs_orig_ioctl32) ();
int (*afs_orig_setgroups) (), (*afs_orig_setgroups32) ();
-struct streamtab *udp_infop = 0;
#ifndef AFS_SUN510_ENV
struct ill_s *ill_g_headp = 0;
#endif
extern Afs_syscall();
+static void *
+do_mod_lookup(const char * mod, const char * sym)
+{
+ void * ptr;
+
+ ptr = modlookup(mod, sym);
+ if (ptr == NULL) {
+ afs_warn("modlookup failed for symbol '%s' in module '%s'\n",
+ sym, mod);
+ }
+
+ return ptr;
+}
+
#ifdef AFS_SUN510_ENV
afsinit(int fstype, char *dummy)
#else
afs_orig_ioctl32 = sysent32[SYS_ioctl].sy_call;
sysent32[SYS_setgroups].sy_callc = afs_xsetgroups;
sysent32[SYS_ioctl].sy_call = afs_xioctl;
-#endif
+#endif /* AFS_SUN57_64BIT_ENV */
#ifdef AFS_SUN510_ENV
vfs_setfsops(fstype, afs_vfsops_template, &afs_vfsopsp);
afsfstype = fstype;
vn_make_ops("afs", afs_vnodeops_template, &afs_ops);
-#else
+#else /* !AFS_SUN510_ENV */
vfsswp->vsw_vfsops = &Afs_vfsops;
afsfstype = fstype;
-#endif
+#endif /* !AFS_SUN510_ENV */
-#if !defined(AFS_NONFSTRANS)
- nfs_rfsdisptab_v2 = (int (*)())modlookup("nfssrv", "rfsdisptab_v2");
- if (!nfs_rfsdisptab_v2) {
- afs_warn("warning : rfsdisptab_v2 NOT FOUND\n");
- }
- if (nfs_rfsdisptab_v2) {
- nfs_acldisptab_v2 = (int (*)())modlookup("nfssrv", "acldisptab_v2");
- if (!nfs_acldisptab_v2) {
- afs_warn("warning : acldisptab_v2 NOT FOUND\n");
- } else {
+#if !defined(AFS_NONFSTRANS)
+ nfs_rfsdisptab_v2 = (int (*)()) do_mod_lookup("nfssrv", "rfsdisptab_v2");
+ if (nfs_rfsdisptab_v2 != NULL) {
+ nfs_acldisptab_v2 = (int (*)()) do_mod_lookup("nfssrv", "acldisptab_v2");
+ if (nfs_acldisptab_v2 != NULL) {
afs_xlatorinit_v2(nfs_rfsdisptab_v2, nfs_acldisptab_v2);
}
}
- nfs_rfsdisptab_v3 = (int (*)())modlookup("nfssrv", "rfsdisptab_v3");
- if (!nfs_rfsdisptab_v3) {
- afs_warn("warning : rfsdisptab_v3 NOT FOUND\n");
- }
- if (nfs_rfsdisptab_v3) {
- nfs_acldisptab_v3 = (int (*)())modlookup("nfssrv", "acldisptab_v3");
- if (!nfs_acldisptab_v3) {
- afs_warn("warning : acldisptab_v3 NOT FOUND\n");
- } else {
+ nfs_rfsdisptab_v3 = (int (*)()) do_mod_lookup("nfssrv", "rfsdisptab_v3");
+ if (nfs_rfsdisptab_v3 != NULL) {
+ nfs_acldisptab_v3 = (int (*)()) do_mod_lookup("nfssrv", "acldisptab_v3");
+ if (nfs_acldisptab_v3 != NULL) {
afs_xlatorinit_v3(nfs_rfsdisptab_v3, nfs_acldisptab_v3);
}
}
- nfs_checkauth = (int (*)())modlookup("nfssrv", "checkauth");
- if (!nfs_checkauth)
- afs_warn("nfs_checkauth not initialised");
-#endif
- ufs_iallocp = (int (*)())modlookup("ufs", "ufs_ialloc");
- ufs_iupdatp = (void (*)())modlookup("ufs", "ufs_iupdat");
- ufs_igetp = (int (*)())modlookup("ufs", "ufs_iget");
- ufs_itimes_nolockp = (void (*)())modlookup("ufs", "ufs_itimes_nolock");
- udp_infop = (struct streamtab *)modlookup("udp", "udpinfo");
-#ifdef AFS_SUN510_ENV
- if (!ufs_iallocp || !ufs_iupdatp || !ufs_itimes_nolockp || !ufs_igetp
- || !udp_infop)
- afs_warn("AFS to UFS mapping cannot be fully initialised\n");
-#else
- ill_g_headp = (struct ill_s *)modlookup("ip", "ill_g_head");
+ nfs_checkauth = (int (*)()) do_mod_lookup("nfssrv", "checkauth");
+#endif /* !AFS_NONFSTRANS */
- if (!ufs_iallocp || !ufs_iupdatp || !ufs_itimes_nolockp || !ufs_igetp
- || !udp_infop || !ill_g_headp)
+ ufs_iallocp = (int (*)()) do_mod_lookup("ufs", "ufs_ialloc");
+ ufs_iupdatp = (void (*)()) do_mod_lookup("ufs", "ufs_iupdat");
+ ufs_igetp = (int (*)()) do_mod_lookup("ufs", "ufs_iget");
+ ufs_itimes_nolockp = (void (*)()) do_mod_lookup("ufs", "ufs_itimes_nolock");
+
+ if (!ufs_iallocp || !ufs_iupdatp || !ufs_itimes_nolockp || !ufs_igetp) {
afs_warn("AFS to UFS mapping cannot be fully initialised\n");
-#endif
+ }
+
+#if !defined(AFS_SUN510_ENV)
+ ill_g_headp = (struct ill_s *) do_mod_lookup("ip", "ill_g_head");
+#endif /* !AFS_SUN510_ENV */
afs_sinited = 1;
return 0;
}
#ifdef AFS_SUN510_ENV
+#ifdef AFS_SUN511_ENV
+static vfsdef_t afs_vfsdef = {
+ VFSDEF_VERSION,
+ "afs",
+ afsinit,
+ 0,
+ NULL
+};
+#else
static struct vfsdef_v3 afs_vfsdef = {
VFSDEF_VERSION,
"afs",
afsinit,
0
};
+#endif
#else
static struct vfssw afs_vfw = {
"afs",
git://git.openafs.org / openafs.git / blobdiff