/* $NetBSD: linux_mtio.c,v 1.7.96.1 2022/08/03 11:11:32 martin Exp $ */ /* * Copyright (c) 2005 Soren S. Jorvang. 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ #include __KERNEL_RCSID(0, "$NetBSD: linux_mtio.c,v 1.7.96.1 2022/08/03 11:11:32 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static const struct mtop_mapping { short lop; short op; } mtop_map[] = { { LINUX_MTFSF, MTFSF }, { LINUX_MTBSF, MTBSF }, { LINUX_MTFSR, MTFSR }, { LINUX_MTBSR, MTBSR }, { LINUX_MTWEOF, MTWEOF }, { LINUX_MTREW, MTREW }, { LINUX_MTOFFL, MTOFFL }, { LINUX_MTNOP, MTNOP }, { LINUX_MTRETEN, MTRETEN }, { LINUX_MTEOM, MTEOM }, { LINUX_MTERASE, MTERASE }, { LINUX_MTSETBLK, MTSETBSIZ }, { LINUX_MTSETDENSITY, MTSETDNSTY }, { LINUX_MTCOMPRESSION, MTCMPRESS }, { -1, -1 } }; int linux_ioctl_mtio(struct lwp *l, const struct linux_sys_ioctl_args *uap, register_t *retval) { file_t *fp; u_long com = SCARG(uap, com); int i, error = 0; int (*ioctlf)(file_t *, u_long, void *); struct linux_mtop lmtop; struct linux_mtget lmtget; struct mtop mt; if ((fp = fd_getfile(SCARG(uap, fd))) == NULL) return EBADF; ioctlf = fp->f_ops->fo_ioctl; *retval = 0; switch (com) { case LINUX_MTIOCTOP: error = copyin(SCARG(uap, data), &lmtop, sizeof lmtop); for (i = 0; mtop_map[i].lop >= 0; i++) { if (mtop_map[i].lop == lmtop.mt_op) break; } if (mtop_map[i].lop == -1) { error = EINVAL; break; } mt.mt_op = mtop_map[i].op; mt.mt_count = lmtop.mt_count; error = ioctlf(fp, MTIOCTOP, &mt); break; case LINUX_MTIOCGET: memset(&lmtget, 0, sizeof(lmtget)); lmtget.mt_type = LINUX_MT_ISUNKNOWN; lmtget.mt_resid = 0; lmtget.mt_dsreg = 0; lmtget.mt_gstat = 0; lmtget.mt_erreg = 0; lmtget.mt_fileno = 0; lmtget.mt_blkno = 0; error = copyout(&lmtget, SCARG(uap, data), sizeof lmtget); break; case LINUX_MTIOCPOS: default: printf("linux_mtio unsupported ioctl 0x%lx\n", com); error = ENODEV; break; } fd_putfile(SCARG(uap, fd)); return error; }