Annotation of sys/compat/linux/linux_hdio.c, Revision 1.1.1.1
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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