Annotation of sys/compat/linux/linux_hdio.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: linux_hdio.c,v 1.6 2007/06/05 00:38:20 deraadt Exp $ */
! 2: /* $NetBSD: linux_hdio.c,v 1.1 2000/12/10 14:12:17 fvdl Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 2000 Wasabi Systems, Inc.
! 6: * All rights reserved.
! 7: *
! 8: * Written by Frank van der Linden for Wasabi Systems, Inc.
! 9: *
! 10: * Redistribution and use in source and binary forms, with or without
! 11: * modification, are permitted provided that the following conditions
! 12: * are met:
! 13: * 1. Redistributions of source code must retain the above copyright
! 14: * notice, this list of conditions and the following disclaimer.
! 15: * 2. Redistributions in binary form must reproduce the above copyright
! 16: * notice, this list of conditions and the following disclaimer in the
! 17: * documentation and/or other materials provided with the distribution.
! 18: * 3. All advertising materials mentioning features or use of this software
! 19: * must display the following acknowledgement:
! 20: * This product includes software developed for the NetBSD Project by
! 21: * Wasabi Systems, Inc.
! 22: * 4. The name of Wasabi Systems, Inc. may not be used to endorse
! 23: * or promote products derived from this software without specific prior
! 24: * written permission.
! 25: *
! 26: * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
! 27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 28: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 29: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
! 30: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 31: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 32: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 33: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 34: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 35: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 36: * POSSIBILITY OF SUCH DAMAGE.
! 37: */
! 38:
! 39: #include <sys/param.h>
! 40: #include <sys/systm.h>
! 41: #include <sys/ioctl.h>
! 42: #include <sys/file.h>
! 43: #include <sys/filedesc.h>
! 44: #include <sys/mount.h>
! 45: #include <sys/proc.h>
! 46: #include <sys/disklabel.h>
! 47:
! 48: #include <dev/ata/atareg.h>
! 49: #include <dev/ic/wdcreg.h>
! 50: #include <sys/ataio.h>
! 51:
! 52: #include <sys/syscallargs.h>
! 53:
! 54: #include <compat/linux/linux_types.h>
! 55: #include <compat/linux/linux_ioctl.h>
! 56: #include <compat/linux/linux_signal.h>
! 57: #include <compat/linux/linux_util.h>
! 58: #include <compat/linux/linux_hdio.h>
! 59:
! 60: #include <compat/linux/linux_syscallargs.h>
! 61:
! 62: int
! 63: linux_ioctl_hdio(struct proc *p, struct linux_sys_ioctl_args *uap,
! 64: register_t *retval)
! 65: {
! 66: u_long com;
! 67: int error, error1;
! 68: caddr_t sg;
! 69: struct filedesc *fdp;
! 70: struct file *fp;
! 71: int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *);
! 72: struct ataparams *atap, ata;
! 73: struct atareq req;
! 74: struct disklabel label, *labp;
! 75: struct partinfo partp;
! 76: struct linux_hd_geometry hdg;
! 77: struct linux_hd_big_geometry hdg_big;
! 78:
! 79: fdp = p->p_fd;
! 80: if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
! 81: return (EBADF);
! 82:
! 83: FREF(fp);
! 84: com = SCARG(uap, com);
! 85: ioctlf = fp->f_ops->fo_ioctl;
! 86: retval[0] = error = 0;
! 87:
! 88: com = SCARG(uap, com);
! 89:
! 90: switch (com) {
! 91: case LINUX_HDIO_OBSOLETE_IDENTITY:
! 92: case LINUX_HDIO_GET_IDENTITY:
! 93: sg = stackgap_init(p->p_emul);
! 94: atap = stackgap_alloc(&sg, DEV_BSIZE);
! 95: if (atap == NULL) {
! 96: error = ENOMEM;
! 97: break;
! 98: }
! 99:
! 100: req.flags = ATACMD_READ;
! 101: req.command = WDCC_IDENTIFY;
! 102: req.databuf = (caddr_t)atap;
! 103: req.datalen = DEV_BSIZE;
! 104: req.timeout = 1000;
! 105: error = ioctlf(fp, ATAIOCCOMMAND, (caddr_t)&req, p);
! 106: if (error != 0)
! 107: break;
! 108: if (req.retsts != ATACMD_OK) {
! 109: error = EIO;
! 110: break;
! 111: }
! 112: error = copyin(atap, &ata, sizeof ata);
! 113: if (error != 0)
! 114: break;
! 115: /*
! 116: * 142 is the size of the old structure used by Linux,
! 117: * which doesn't seem to be defined anywhere anymore.
! 118: */
! 119: error = copyout(&ata, SCARG(uap, data),
! 120: com == LINUX_HDIO_GET_IDENTITY ? sizeof ata : 142);
! 121: break;
! 122: case LINUX_HDIO_GETGEO:
! 123: error = linux_machdepioctl(p, uap, retval);
! 124: if (error == 0)
! 125: break;
! 126: error = ioctlf(fp, DIOCGDINFO, (caddr_t)&label, p);
! 127: error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p);
! 128: if (error != 0 && error1 != 0) {
! 129: error = error1;
! 130: break;
! 131: }
! 132: labp = error != 0 ? &label : partp.disklab;
! 133: hdg.start = error1 != 0 ? DL_GETPOFFSET(partp.part) & 0x7fffffff: 0;
! 134: hdg.heads = labp->d_ntracks;
! 135: hdg.cylinders = labp->d_ncylinders;
! 136: hdg.sectors = labp->d_nsectors;
! 137: error = copyout(&hdg, SCARG(uap, data), sizeof hdg);
! 138: break;
! 139: case LINUX_HDIO_GETGEO_BIG:
! 140: error = linux_machdepioctl(p, uap, retval);
! 141: if (error == 0)
! 142: break;
! 143: case LINUX_HDIO_GETGEO_BIG_RAW:
! 144: error = ioctlf(fp, DIOCGDINFO, (caddr_t)&label, p);
! 145: error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p);
! 146: if (error != 0 && error1 != 0) {
! 147: error = error1;
! 148: break;
! 149: }
! 150: labp = error != 0 ? &label : partp.disklab;
! 151: hdg_big.start = error1 != 0 ? DL_GETPOFFSET(partp.part) & 0x7fffffff : 0;
! 152: hdg_big.heads = labp->d_ntracks;
! 153: hdg_big.cylinders = labp->d_ncylinders;
! 154: hdg_big.sectors = labp->d_nsectors;
! 155: error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big);
! 156: break;
! 157: case LINUX_HDIO_GET_UNMASKINTR:
! 158: case LINUX_HDIO_GET_MULTCOUNT:
! 159: case LINUX_HDIO_GET_KEEPSETTINGS:
! 160: case LINUX_HDIO_GET_32BIT:
! 161: case LINUX_HDIO_GET_NOWERR:
! 162: case LINUX_HDIO_GET_DMA:
! 163: case LINUX_HDIO_GET_NICE:
! 164: case LINUX_HDIO_DRIVE_RESET:
! 165: case LINUX_HDIO_TRISTATE_HWIF:
! 166: case LINUX_HDIO_DRIVE_TASK:
! 167: case LINUX_HDIO_DRIVE_CMD:
! 168: case LINUX_HDIO_SET_MULTCOUNT:
! 169: case LINUX_HDIO_SET_UNMASKINTR:
! 170: case LINUX_HDIO_SET_KEEPSETTINGS:
! 171: case LINUX_HDIO_SET_32BIT:
! 172: case LINUX_HDIO_SET_NOWERR:
! 173: case LINUX_HDIO_SET_DMA:
! 174: case LINUX_HDIO_SET_PIO_MODE:
! 175: case LINUX_HDIO_SCAN_HWIF:
! 176: case LINUX_HDIO_SET_NICE:
! 177: case LINUX_HDIO_UNREGISTER_HWIF:
! 178: error = EINVAL;
! 179: }
! 180:
! 181: FRELE(fp);
! 182: return error;
! 183: }
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