| 1 | /* $NetBSD: linux_mtio.c,v 1.7 2008/03/21 21:54:58 ad Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 2005 Soren S. Jorvang. All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions, and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 25 | * SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | #include <sys/cdefs.h> |
| 29 | __KERNEL_RCSID(0, "$NetBSD: linux_mtio.c,v 1.7 2008/03/21 21:54:58 ad Exp $" ); |
| 30 | |
| 31 | #include <sys/param.h> |
| 32 | #include <sys/systm.h> |
| 33 | #include <sys/ioctl.h> |
| 34 | #include <sys/file.h> |
| 35 | #include <sys/filedesc.h> |
| 36 | #include <sys/mount.h> |
| 37 | #include <sys/proc.h> |
| 38 | |
| 39 | #include <sys/mtio.h> |
| 40 | |
| 41 | #include <sys/syscallargs.h> |
| 42 | |
| 43 | #include <compat/linux/common/linux_types.h> |
| 44 | #include <compat/linux/common/linux_ioctl.h> |
| 45 | #include <compat/linux/common/linux_signal.h> |
| 46 | #include <compat/linux/common/linux_mtio.h> |
| 47 | #include <compat/linux/common/linux_ipc.h> |
| 48 | #include <compat/linux/common/linux_sem.h> |
| 49 | |
| 50 | #include <compat/linux/linux_syscallargs.h> |
| 51 | |
| 52 | static const struct mtop_mapping { |
| 53 | short lop; |
| 54 | short op; |
| 55 | } mtop_map[] = { |
| 56 | { LINUX_MTFSF, MTFSF }, |
| 57 | { LINUX_MTBSF, MTBSF }, |
| 58 | { LINUX_MTFSR, MTFSR }, |
| 59 | { LINUX_MTBSR, MTBSR }, |
| 60 | { LINUX_MTWEOF, MTWEOF }, |
| 61 | { LINUX_MTREW, MTREW }, |
| 62 | { LINUX_MTOFFL, MTOFFL }, |
| 63 | { LINUX_MTNOP, MTNOP }, |
| 64 | { LINUX_MTRETEN, MTRETEN }, |
| 65 | { LINUX_MTEOM, MTEOM }, |
| 66 | { LINUX_MTERASE, MTERASE }, |
| 67 | { LINUX_MTSETBLK, MTSETBSIZ }, |
| 68 | { LINUX_MTSETDENSITY, MTSETDNSTY }, |
| 69 | { LINUX_MTCOMPRESSION, MTCMPRESS }, |
| 70 | { -1, -1 } |
| 71 | }; |
| 72 | |
| 73 | int |
| 74 | linux_ioctl_mtio(struct lwp *l, const struct linux_sys_ioctl_args *uap, |
| 75 | register_t *retval) |
| 76 | { |
| 77 | file_t *fp; |
| 78 | u_long com = SCARG(uap, com); |
| 79 | int i, error = 0; |
| 80 | int (*ioctlf)(file_t *, u_long, void *); |
| 81 | struct linux_mtop lmtop; |
| 82 | struct linux_mtget lmtget; |
| 83 | struct mtop mt; |
| 84 | |
| 85 | if ((fp = fd_getfile(SCARG(uap, fd))) == NULL) |
| 86 | return EBADF; |
| 87 | |
| 88 | ioctlf = fp->f_ops->fo_ioctl; |
| 89 | |
| 90 | *retval = 0; |
| 91 | switch (com) { |
| 92 | case LINUX_MTIOCTOP: |
| 93 | error = copyin(SCARG(uap, data), &lmtop, sizeof lmtop); |
| 94 | for (i = 0; mtop_map[i].lop >= 0; i++) { |
| 95 | if (mtop_map[i].lop == lmtop.mt_op) |
| 96 | break; |
| 97 | } |
| 98 | |
| 99 | if (mtop_map[i].lop == -1) { |
| 100 | error = EINVAL; |
| 101 | break; |
| 102 | } |
| 103 | |
| 104 | mt.mt_op = mtop_map[i].op; |
| 105 | mt.mt_count = lmtop.mt_count; |
| 106 | error = ioctlf(fp, MTIOCTOP, &mt); |
| 107 | break; |
| 108 | case LINUX_MTIOCGET: |
| 109 | lmtget.mt_type = LINUX_MT_ISUNKNOWN; |
| 110 | lmtget.mt_resid = 0; |
| 111 | lmtget.mt_dsreg = 0; |
| 112 | lmtget.mt_gstat = 0; |
| 113 | lmtget.mt_erreg = 0; |
| 114 | lmtget.mt_fileno = 0; |
| 115 | lmtget.mt_blkno = 0; |
| 116 | error = copyout(&lmtget, SCARG(uap, data), sizeof lmtget); |
| 117 | break; |
| 118 | case LINUX_MTIOCPOS: |
| 119 | default: |
| 120 | printf("linux_mtio unsupported ioctl 0x%lx\n" , com); |
| 121 | error = ENODEV; |
| 122 | break; |
| 123 | } |
| 124 | |
| 125 | fd_putfile(SCARG(uap, fd)); |
| 126 | |
| 127 | return error; |
| 128 | } |
| 129 | |