/* $NetBSD: osf1_mount.c,v 1.47 2010/03/02 21:09:21 pooka Exp $ */ /* * Copyright (c) 1999 Christopher G. Demetriou. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Christopher G. Demetriou * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1994, 1995 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #include __KERNEL_RCSID(0, "$NetBSD: osf1_mount.c,v 1.47 2010/03/02 21:09:21 pooka Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define OSF1_MNT_WAIT 0x1 #define OSF1_MNT_NOWAIT 0x2 #define OSF1_MNT_FORCE 0x1 #define OSF1_MNT_NOFORCE 0x2 /* acceptable flags for various calls */ #define OSF1_GETFSSTAT_FLAGS (OSF1_MNT_WAIT|OSF1_MNT_NOWAIT) #define OSF1_MOUNT_FLAGS 0xffffffff /* XXX */ #define OSF1_UNMOUNT_FLAGS (OSF1_MNT_FORCE|OSF1_MNT_NOFORCE) static int osf1_mount_mfs(struct lwp *, const struct osf1_sys_mount_args *); static int osf1_mount_nfs(struct lwp *, const struct osf1_sys_mount_args *); int osf1_sys_fstatfs(struct lwp *l, const struct osf1_sys_fstatfs_args *uap, register_t *retval) { file_t *fp; struct mount *mp; struct statvfs *sp; struct osf1_statfs osfs; int error; /* fd_getvnode() will use the descriptor for us */ if ((error = fd_getvnode(SCARG(uap, fd), &fp))) return (error); mp = ((struct vnode *)fp->f_data)->v_mount; sp = &mp->mnt_stat; if ((error = VFS_STATVFS(mp, sp))) goto out; sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; osf1_cvt_statfs_from_native(sp, &osfs); error = copyout(&osfs, SCARG(uap, buf), min(sizeof osfs, SCARG(uap, len))); out: fd_putfile(SCARG(uap, fd)); return (error); } int osf1_sys_getfsstat(struct lwp *l, const struct osf1_sys_getfsstat_args *uap, register_t *retval) { struct mount *mp, *nmp; struct statvfs *sp; struct osf1_statfs osfs; char *osf_sfsp; long count, maxcount, error; if (SCARG(uap, flags) & ~OSF1_GETFSSTAT_FLAGS) return (EINVAL); maxcount = SCARG(uap, bufsize) / sizeof(struct osf1_statfs); osf_sfsp = (void *)SCARG(uap, buf); mutex_enter(&mountlist_lock); for (count = 0, mp = mountlist.cqh_first; mp != (void *)&mountlist; mp = nmp) { if (vfs_busy(mp, &nmp)) { continue; } if (osf_sfsp && count < maxcount) { sp = &mp->mnt_stat; /* * If OSF1_MNT_NOWAIT is specified, do not refresh the * fsstat cache. OSF1_MNT_WAIT overrides * OSF1_MNT_NOWAIT. */ if (((SCARG(uap, flags) & OSF1_MNT_NOWAIT) == 0 || (SCARG(uap, flags) & OSF1_MNT_WAIT)) && (error = VFS_STATVFS(mp, sp)) == 0) { sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; osf1_cvt_statfs_from_native(sp, &osfs); if ((error = copyout(&osfs, osf_sfsp, sizeof (struct osf1_statfs)))) { vfs_unbusy(mp, false, NULL); return (error); } osf_sfsp += sizeof (struct osf1_statfs); } } count++; vfs_unbusy(mp, false, &nmp); } mutex_exit(&mountlist_lock); if (osf_sfsp && count > maxcount) *retval = maxcount; else *retval = count; return (0); } int osf1_sys_mount(struct lwp *l, const struct osf1_sys_mount_args *uap, register_t *retval) { if (SCARG(uap, flags) & ~OSF1_MOUNT_FLAGS) return (EINVAL); /* XXX - xlate flags */ switch (SCARG(uap, type)) { case OSF1_MOUNT_NFS: return osf1_mount_nfs(l, uap); break; case OSF1_MOUNT_MFS: return osf1_mount_mfs(l, uap); default: return (EINVAL); } } int osf1_sys_statfs(struct lwp *l, const struct osf1_sys_statfs_args *uap, register_t *retval) { struct mount *mp; struct statvfs *sp; struct osf1_statfs osfs; int error; struct vnode *vp; error = namei_simple_user(SCARG(uap, path), NSM_FOLLOW_TRYEMULROOT, &vp); if (error != 0) return (error); mp = vp->v_mount; sp = &mp->mnt_stat; vrele(vp); if ((error = VFS_STATVFS(mp, sp))) return (error); sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; osf1_cvt_statfs_from_native(sp, &osfs); return copyout(&osfs, SCARG(uap, buf), min(sizeof osfs, SCARG(uap, len))); } int osf1_sys_unmount(struct lwp *l, const struct osf1_sys_unmount_args *uap, register_t *retval) { struct sys_unmount_args a; SCARG(&a, path) = SCARG(uap, path); if (SCARG(uap, flags) & ~OSF1_UNMOUNT_FLAGS) return (EINVAL); SCARG(&a, flags) = 0; if ((SCARG(uap, flags) & OSF1_MNT_FORCE) && (SCARG(uap, flags) & OSF1_MNT_NOFORCE) == 0) SCARG(&a, flags) |= MNT_FORCE; return sys_unmount(l, &a, retval); } static int osf1_mount_mfs(struct lwp *l, const struct osf1_sys_mount_args *uap) { struct osf1_mfs_args osf_ma; struct mfs_args bsd_ma; int error; register_t dummy; if ((error = copyin(SCARG(uap, data), &osf_ma, sizeof osf_ma))) return error; memset(&bsd_ma, 0, sizeof bsd_ma); bsd_ma.fspec = osf_ma.name; /* XXX export args */ bsd_ma.base = osf_ma.base; bsd_ma.size = osf_ma.size; return do_sys_mount(l, vfs_getopsbyname("mfs"), NULL, SCARG(uap, path), SCARG(uap, flags), &bsd_ma, UIO_SYSSPACE, sizeof bsd_ma, &dummy); } static int osf1_mount_nfs(struct lwp *l, const struct osf1_sys_mount_args *uap) { struct osf1_nfs_args osf_na; struct nfs_args bsd_na; int error; unsigned long leftovers; register_t dummy; if ((error = copyin(SCARG(uap, data), &osf_na, sizeof osf_na))) return error; memset(&bsd_na, 0, sizeof bsd_na); bsd_na.addr = (struct sockaddr *)osf_na.addr; bsd_na.addrlen = sizeof (struct sockaddr_in); bsd_na.fh = osf_na.fh; /* translate flags */ bsd_na.flags = emul_flags_translate(osf1_nfs_mount_flags_xtab, osf_na.flags, &leftovers); if (leftovers & OSF1_NFSMNT_HOSTNAME) { leftovers &= ~OSF1_NFSMNT_HOSTNAME; bsd_na.hostname = osf_na.hostname; } else { /* XXX FILL IN HOST NAME WITH IPADDR? */ } if (leftovers & OSF1_NFSMNT_TCP) { leftovers &= ~OSF1_NFSMNT_TCP; bsd_na.sotype = SOCK_DGRAM; bsd_na.proto = 0; } else { bsd_na.sotype = SOCK_STREAM; bsd_na.proto = 0; } if (leftovers != 0) return (EINVAL); /* copy structure elements based on flags */ if (bsd_na.flags & NFSMNT_WSIZE) bsd_na.wsize = osf_na.wsize; if (bsd_na.flags & NFSMNT_RSIZE) bsd_na.rsize = osf_na.rsize; if (bsd_na.flags & NFSMNT_TIMEO) bsd_na.timeo = osf_na.timeo; if (bsd_na.flags & NFSMNT_RETRANS) bsd_na.retrans = osf_na.retrans; return do_sys_mount(l, vfs_getopsbyname("nfs"), NULL, SCARG(uap, path), SCARG(uap, flags), &bsd_na, UIO_SYSSPACE, sizeof bsd_na, &dummy); return 0; }