/* $OpenBSD: ultrix_pathname.c,v 1.9 2003/06/02 23:28:01 millert Exp $ */ /* $NetBSD: ultrix_pathname.c,v 1.2 1996/04/07 17:23:07 jonathan Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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. * * * @(#)sun_misc.c 8.1 (Berkeley) 6/18/93 * * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp */ /* * Ultrix emulation filesystem-namespace compatibility module. * * Ultrix system calls that examine the filesysten namespace * are implemented here. Each system call has a wrapper that * first checks if the given file exists at a special `emulation' * pathname: the given path, prefixex with '/emul/ultrix', and * if that pathname exists, it is used instead of the providd pathname. * * Used to locate OS-specific files (shared libraries, config files, * etc) used by emul processes at their `normal' pathnames, without * polluting, or conflicting with, the native filesysten namespace. */ #include <sys/param.h> #include <sys/systm.h> #include <sys/namei.h> #include <sys/file.h> #include <sys/filedesc.h> #include <sys/ioctl.h> #include <sys/mount.h> #include <sys/stat.h> #include <sys/vnode.h> #include <sys/syscallargs.h> #include <compat/ultrix/ultrix_syscallargs.h> #include <compat/ultrix/ultrix_util.h> const char ultrix_emul_path[] = "/emul/ultrix"; int ultrix_sys_creat(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_creat_args *uap = v; struct sys_open_args ouap; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); SCARG(&ouap, path) = SCARG(uap, path); SCARG(&ouap, flags) = O_WRONLY | O_CREAT | O_TRUNC; SCARG(&ouap, mode) = SCARG(uap, mode); return (sys_open(p, &ouap, retval)); } int ultrix_sys_access(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_access_args *uap = v; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (sys_access(p, uap, retval)); } int ultrix_sys_stat(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_stat_args *uap = v; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (compat_43_sys_stat(p, uap, retval)); } int ultrix_sys_lstat(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_lstat_args *uap = v; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); return (compat_43_sys_lstat(p, uap, retval)); } int ultrix_sys_execv(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_execv_args *uap = v; struct sys_execve_args ouap; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); SCARG(&ouap, path) = SCARG(uap, path); SCARG(&ouap, argp) = SCARG(uap, argp); SCARG(&ouap, envp) = NULL; return (sys_execve(p, &ouap, retval)); } int ultrix_sys_open(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_open_args *uap = v; int l, r; int noctty; int ret; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); /* convert open flags into NetBSD flags */ l = SCARG(uap, flags); noctty = l & 0x8000; r = (l & (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800)); r |= ((l & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0); r |= ((l & 0x0080) ? O_SHLOCK : 0); r |= ((l & 0x0100) ? O_EXLOCK : 0); r |= ((l & 0x2000) ? O_SYNC : 0); SCARG(uap, flags) = r; ret = sys_open(p, (struct sys_open_args *)uap, retval); if (!ret && !noctty && SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { struct filedesc *fdp = p->p_fd; struct file *fp; if ((fd = fd_getfile(fdp, *retval)) == NULL) return (EBADF); FREF(fp); /* ignore any error, just give it a try */ if (fp->f_type == DTYPE_VNODE) (fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t)0, p); FRELE(fp); } return ret; } struct ultrix_statfs { long f_type; /* type of info, zero for now */ long f_bsize; /* fundamental file system block size */ long f_blocks; /* total blocks in file system */ long f_bfree; /* free blocks */ long f_bavail; /* free blocks available to non-super-user */ long f_files; /* total file nodes in file system */ long f_ffree; /* free file nodes in fs */ fsid_t f_fsid; /* file system id */ long f_spare[7]; /* spare for later */ }; /* * Custruct ultrix statfs result from native. * XXX should this be the same as returned by Ultrix getmnt(2)? * XXX Ultrix predates DEV_BSIZE. Is conversion of disk space from 1k * block units to DEV_BSIZE necessary? */ static int ultrixstatfs(sp, buf) struct statfs *sp; caddr_t buf; { struct ultrix_statfs ssfs; bzero(&ssfs, sizeof ssfs); ssfs.f_type = 0; ssfs.f_bsize = sp->f_bsize; ssfs.f_blocks = sp->f_blocks; ssfs.f_bfree = sp->f_bfree; ssfs.f_bavail = sp->f_bavail; ssfs.f_files = sp->f_files; ssfs.f_ffree = sp->f_ffree; ssfs.f_fsid = sp->f_fsid; return copyout((caddr_t)&ssfs, buf, sizeof ssfs); } int ultrix_sys_statfs(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_statfs_args *uap = v; register struct mount *mp; register struct statfs *sp; int error; struct nameidata nd; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), p); if ((error = namei(&nd)) != 0) return (error); mp = nd.ni_vp->v_mount; sp = &mp->mnt_stat; vrele(nd.ni_vp); if ((error = VFS_STATFS(mp, sp, p)) != 0) return (error); sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; return ultrixstatfs(sp, (caddr_t)SCARG(uap, buf)); } /* * sys_fstatfs() takes an fd, not a path, and so needs no emul * pathname processing; but it's similar enough to sys_statfs() that * it goes here anyway. */ int ultrix_sys_fstatfs(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_fstatfs_args *uap = v; struct file *fp; struct mount *mp; register struct statfs *sp; int error; if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) return (error); mp = ((struct vnode *)fp->f_data)->v_mount; sp = &mp->mnt_stat; error = VFS_STATFS(mp, sp, p); FRELE(fp); if (error) return (error); sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; return ultrixstatfs(sp, (caddr_t)SCARG(uap, buf)); } int ultrix_sys_mknod(p, v, retval) struct proc *p; void *v; register_t *retval; { struct ultrix_sys_mknod_args *uap = v; caddr_t sg = stackgap_init(p->p_emul); ULTRIX_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path)); if (S_ISFIFO(SCARG(uap, mode))) return sys_mkfifo(p, uap, retval); return sys_mknod(p, (struct sys_mknod_args *)uap, retval); }