linux_blkio.c revision 1.3.4.2
1 1.3.4.2 he /* $NetBSD: linux_blkio.c,v 1.3.4.2 2001/03/30 21:36:59 he Exp $ */ 2 1.3.4.2 he 3 1.3.4.2 he /* 4 1.3.4.2 he * Copyright (c) 2001 Wasabi Systems, Inc. 5 1.3.4.2 he * All rights reserved. 6 1.3.4.2 he * 7 1.3.4.2 he * Written by Frank van der Linden for Wasabi Systems, Inc. 8 1.3.4.2 he * 9 1.3.4.2 he * Redistribution and use in source and binary forms, with or without 10 1.3.4.2 he * modification, are permitted provided that the following conditions 11 1.3.4.2 he * are met: 12 1.3.4.2 he * 1. Redistributions of source code must retain the above copyright 13 1.3.4.2 he * notice, this list of conditions and the following disclaimer. 14 1.3.4.2 he * 2. Redistributions in binary form must reproduce the above copyright 15 1.3.4.2 he * notice, this list of conditions and the following disclaimer in the 16 1.3.4.2 he * documentation and/or other materials provided with the distribution. 17 1.3.4.2 he * 3. All advertising materials mentioning features or use of this software 18 1.3.4.2 he * must display the following acknowledgement: 19 1.3.4.2 he * This product includes software developed for the NetBSD Project by 20 1.3.4.2 he * Wasabi Systems, Inc. 21 1.3.4.2 he * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.3.4.2 he * or promote products derived from this software without specific prior 23 1.3.4.2 he * written permission. 24 1.3.4.2 he * 25 1.3.4.2 he * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.3.4.2 he * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.3.4.2 he * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.3.4.2 he * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.3.4.2 he * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.3.4.2 he * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.3.4.2 he * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.3.4.2 he * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.3.4.2 he * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.3.4.2 he * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.3.4.2 he * POSSIBILITY OF SUCH DAMAGE. 36 1.3.4.2 he */ 37 1.3.4.2 he 38 1.3.4.2 he #include <sys/param.h> 39 1.3.4.2 he #include <sys/systm.h> 40 1.3.4.2 he #include <sys/ioctl.h> 41 1.3.4.2 he #include <sys/file.h> 42 1.3.4.2 he #include <sys/filedesc.h> 43 1.3.4.2 he #include <sys/mount.h> 44 1.3.4.2 he #include <sys/proc.h> 45 1.3.4.2 he #include <sys/disklabel.h> 46 1.3.4.2 he 47 1.3.4.2 he #include <sys/syscallargs.h> 48 1.3.4.2 he 49 1.3.4.2 he #include <compat/linux/common/linux_types.h> 50 1.3.4.2 he #include <compat/linux/common/linux_ioctl.h> 51 1.3.4.2 he #include <compat/linux/common/linux_signal.h> 52 1.3.4.2 he #include <compat/linux/common/linux_util.h> 53 1.3.4.2 he #include <compat/linux/common/linux_blkio.h> 54 1.3.4.2 he 55 1.3.4.2 he #include <compat/linux/linux_syscallargs.h> 56 1.3.4.2 he 57 1.3.4.2 he int 58 1.3.4.2 he linux_ioctl_blkio(struct proc *p, struct linux_sys_ioctl_args *uap, 59 1.3.4.2 he register_t *retval) 60 1.3.4.2 he { 61 1.3.4.2 he u_long com; 62 1.3.4.2 he long size; 63 1.3.4.2 he int error; 64 1.3.4.2 he struct filedesc *fdp; 65 1.3.4.2 he struct file *fp; 66 1.3.4.2 he int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 67 1.3.4.2 he struct partinfo partp; 68 1.3.4.2 he struct disklabel label; 69 1.3.4.2 he 70 1.3.4.2 he fdp = p->p_fd; 71 1.3.4.2 he if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles || 72 1.3.4.2 he (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL || 73 1.3.4.2 he (fp->f_iflags & FIF_WANTCLOSE) != 0) 74 1.3.4.2 he return (EBADF); 75 1.3.4.2 he 76 1.3.4.2 he FILE_USE(fp); 77 1.3.4.2 he error = 0; 78 1.3.4.2 he ioctlf = fp->f_ops->fo_ioctl; 79 1.3.4.2 he com = SCARG(uap, com); 80 1.3.4.2 he 81 1.3.4.2 he switch (com) { 82 1.3.4.2 he case LINUX_BLKGETSIZE: 83 1.3.4.2 he /* 84 1.3.4.2 he * Try to get the partition size of this device. If that 85 1.3.4.2 he * fails, it may be a disk without label; try to get 86 1.3.4.2 he * the default label and compute the size from it. 87 1.3.4.2 he */ 88 1.3.4.2 he error = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p); 89 1.3.4.2 he if (error != 0) { 90 1.3.4.2 he error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, p); 91 1.3.4.2 he if (error != 0) 92 1.3.4.2 he break; 93 1.3.4.2 he size = label.d_nsectors * label.d_ntracks * 94 1.3.4.2 he label.d_ncylinders; 95 1.3.4.2 he } else 96 1.3.4.2 he size = partp.part->p_size; 97 1.3.4.2 he error = copyout(&size, SCARG(uap, data), sizeof size); 98 1.3.4.2 he break; 99 1.3.4.2 he case LINUX_BLKSECTGET: 100 1.3.4.2 he error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, p); 101 1.3.4.2 he if (error != 0) 102 1.3.4.2 he break; 103 1.3.4.2 he error = copyout(&label.d_secsize, SCARG(uap, data), 104 1.3.4.2 he sizeof label.d_secsize); 105 1.3.4.2 he break; 106 1.3.4.2 he case LINUX_BLKROSET: 107 1.3.4.2 he case LINUX_BLKROGET: 108 1.3.4.2 he case LINUX_BLKRRPART: 109 1.3.4.2 he case LINUX_BLKFLSBUF: 110 1.3.4.2 he case LINUX_BLKRASET: 111 1.3.4.2 he case LINUX_BLKRAGET: 112 1.3.4.2 he case LINUX_BLKFRASET: 113 1.3.4.2 he case LINUX_BLKFRAGET: 114 1.3.4.2 he case LINUX_BLKSECTSET: 115 1.3.4.2 he case LINUX_BLKSSZGET: 116 1.3.4.2 he case LINUX_BLKPG: 117 1.3.4.2 he default: 118 1.3.4.2 he error = ENOTTY; 119 1.3.4.2 he } 120 1.3.4.2 he 121 1.3.4.2 he FILE_UNUSE(fp, p); 122 1.3.4.2 he 123 1.3.4.2 he return error; 124 1.3.4.2 he } 125
Indexes created Fri Sep 26 08:10:20 GMT 2025