/* $NetBSD: ibcs2_stat.c,v 1.48.12.1 2017/08/08 16:21:35 martin Exp $ */ /* * Copyright (c) 1995, 1998 Scott Bartram * 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. 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. */ #include __KERNEL_RCSID(0, "$NetBSD: ibcs2_stat.c,v 1.48.12.1 2017/08/08 16:21:35 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void bsd_stat2ibcs_stat(struct stat *, struct ibcs2_stat *); static int cvt_statfs(struct statvfs *, void *, int); static int cvt_statvfs(struct statvfs *, void *, int); static void bsd_stat2ibcs_stat(struct stat *st, struct ibcs2_stat *st4) { memset(st4, 0, sizeof(*st4)); st4->st_dev = (ibcs2_dev_t)st->st_dev; st4->st_ino = (ibcs2_ino_t)st->st_ino; st4->st_mode = (ibcs2_mode_t)st->st_mode; if (st->st_nlink >= (1 << 15)) st4->st_nlink = (1 << 15) - 1; else st4->st_nlink = (ibcs2_nlink_t)st->st_nlink; st4->st_uid = (ibcs2_uid_t)st->st_uid; st4->st_gid = (ibcs2_gid_t)st->st_gid; st4->st_rdev = (ibcs2_dev_t)st->st_rdev; st4->st_size = (ibcs2_off_t)st->st_size; st4->st_atim = (ibcs2_time_t)st->st_atime; st4->st_mtim = (ibcs2_time_t)st->st_mtime; st4->st_ctim = (ibcs2_time_t)st->st_ctime; } static int cvt_statfs(struct statvfs *sp, void *tbuf, int len) { struct ibcs2_statfs ssfs; if (len < 0) return (EINVAL); if (len > sizeof(ssfs)) len = sizeof(ssfs); memset(&ssfs, 0, sizeof ssfs); ssfs.f_fstyp = 0; ssfs.f_bsize = sp->f_bsize; ssfs.f_frsize = sp->f_frsize; ssfs.f_blocks = sp->f_blocks; ssfs.f_bfree = sp->f_bfree; ssfs.f_files = sp->f_files; ssfs.f_ffree = sp->f_ffree; ssfs.f_fname[0] = 0; ssfs.f_fpack[0] = 0; return copyout((void *)&ssfs, tbuf, len); } static int cvt_statvfs(struct statvfs *sp, void *tbuf, int len) { struct ibcs2_statvfs ssvfs; if (len < 0) return (EINVAL); if (len > sizeof(ssvfs)) len = sizeof(ssvfs); memset(&ssvfs, 0, sizeof ssvfs); ssvfs.f_bsize = sp->f_bsize; ssvfs.f_frsize = sp->f_frsize; ssvfs.f_blocks = sp->f_blocks; ssvfs.f_bfree = sp->f_bfree; ssvfs.f_bavail = sp->f_bavail; ssvfs.f_files = sp->f_files; ssvfs.f_ffree = sp->f_ffree; ssvfs.f_favail = sp->f_favail; ssvfs.f_fsid = sp->f_fsidx.__fsid_val[0]; strncpy(ssvfs.f_basetype, sp->f_fstypename, 15); ssvfs.f_flag = 0; ssvfs.f_namemax = PATH_MAX; ssvfs.f_fstr[0] = 0; return copyout((void *)&ssvfs, tbuf, len); } int ibcs2_sys_statfs(struct lwp *l, const struct ibcs2_sys_statfs_args *uap, register_t *retval) { /* { syscallarg(const char *) path; syscallarg(struct ibcs2_statfs *) buf; syscallarg(int) len; syscallarg(int) fstype; } */ struct mount *mp; struct statvfs *sp; 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; if ((error = VFS_STATVFS(mp, sp)) != 0) goto out; sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; error = cvt_statfs(sp, (void *)SCARG(uap, buf), SCARG(uap, len)); out: vrele(vp); return (error); } int ibcs2_sys_fstatfs(struct lwp *l, const struct ibcs2_sys_fstatfs_args *uap, register_t *retval) { /* { syscallarg(int) fd; syscallarg(struct ibcs2_statfs *) buf; syscallarg(int) len; syscallarg(int) fstype; } */ file_t *fp; struct mount *mp; struct statvfs *sp; int error; /* fd_getvnode() will use the descriptor for us */ if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) return (error); mp = fp->f_vnode->v_mount; sp = &mp->mnt_stat; if ((error = VFS_STATVFS(mp, sp)) != 0) goto out; sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; error = cvt_statfs(sp, (void *)SCARG(uap, buf), SCARG(uap, len)); out: fd_putfile(SCARG(uap, fd)); return (error); } int ibcs2_sys_statvfs(struct lwp *l, const struct ibcs2_sys_statvfs_args *uap, register_t *retval) { /* { syscallarg(const char *) path; syscallarg(struct ibcs2_statvfs *) buf; } */ struct mount *mp; struct statvfs *sp; 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; if ((error = VFS_STATVFS(mp, sp)) != 0) goto out; sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; error = cvt_statvfs(sp, (void *)SCARG(uap, buf), sizeof(struct ibcs2_statvfs)); out: vrele(vp); return error; } int ibcs2_sys_fstatvfs(struct lwp *l, const struct ibcs2_sys_fstatvfs_args *uap, register_t *retval) { /* { syscallarg(int) fd; syscallarg(struct ibcs2_statvfs *) buf; } */ file_t *fp; struct mount *mp; struct statvfs *sp; int error; /* fd_getvnode() will use the descriptor for us */ if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) return (error); mp = fp->f_vnode->v_mount; sp = &mp->mnt_stat; if ((error = VFS_STATVFS(mp, sp)) != 0) goto out; sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; error = cvt_statvfs(sp, SCARG(uap, buf), sizeof(struct ibcs2_statvfs)); out: fd_putfile(SCARG(uap, fd)); return (error); } int ibcs2_sys_stat(struct lwp *l, const struct ibcs2_sys_stat_args *uap, register_t *retval) { /* { syscallarg(const char *) path; syscallarg(struct ibcs2_stat *) st; } */ struct stat sb; struct ibcs2_stat ibcs2_st; int error; error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb); if (error != 0) return error; bsd_stat2ibcs_stat(&sb, &ibcs2_st); return copyout(&ibcs2_st, SCARG(uap, st), sizeof (ibcs2_st)); } int ibcs2_sys_lstat(struct lwp *l, const struct ibcs2_sys_lstat_args *uap, register_t *retval) { /* { syscallarg(const char *) path; syscallarg(struct ibcs2_stat *) st; } */ struct stat sb; struct ibcs2_stat ibcs2_st; int error; error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb); if (error != 0) return error; bsd_stat2ibcs_stat(&sb, &ibcs2_st); return copyout((void *)&ibcs2_st, (void *)SCARG(uap, st), sizeof (ibcs2_st)); } int ibcs2_sys_fstat(struct lwp *l, const struct ibcs2_sys_fstat_args *uap, register_t *retval) { /* { syscallarg(int) fd; syscallarg(struct ibcs2_stat *) st; } */ struct stat sb; struct ibcs2_stat ibcs2_st; int error; error = do_sys_fstat(SCARG(uap, fd), &sb); if (error != 0) return error; bsd_stat2ibcs_stat(&sb, &ibcs2_st); return copyout(&ibcs2_st, SCARG(uap, st), sizeof (ibcs2_st)); } int ibcs2_sys_utssys(struct lwp *l, const struct ibcs2_sys_utssys_args *uap, register_t *retval) { /* { syscallarg(int) a1; syscallarg(int) a2; syscallarg(int) flag; } */ switch (SCARG(uap, flag)) { case 0: /* uname(struct utsname *) */ { struct ibcs2_utsname sut; memset(&sut, 0, ibcs2_utsname_len); memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); memcpy(sut.nodename, hostname, sizeof(sut.nodename)); sut.nodename[sizeof(sut.nodename)-1] = '\0'; memcpy(sut.release, osrelease, sizeof(sut.release) - 1); strlcpy(sut.version, "1", sizeof(sut.version)); memcpy(sut.machine, machine, sizeof(sut.machine) - 1); return copyout((void *)&sut, (void *)SCARG(uap, a1), ibcs2_utsname_len); } case 2: /* ustat(dev_t, struct ustat *) */ { struct ibcs2_ustat xu; xu.f_tfree = 20000; /* XXX fixme */ xu.f_tinode = 32000; xu.f_fname[0] = 0; xu.f_fpack[0] = 0; return copyout((void *)&xu, (void *)SCARG(uap, a2), ibcs2_ustat_len); } default: return ENOSYS; } }