d648f29cc3
Been playing with UBI of late and it'd help if I could see what it was doing. Not entirely sure about the decoding of UBI_IOCVOLUP -- it takes a pointer to a 64bit value, not a strict. * util.c (MAX, MIN): Move to ... * defs.h (MAX, MIN): ... here. (CLAMP): Define. (ubi_ioctl): New prototype. * ioctl.c (ioctl_decode): Call ubi_ioctl when code is 'o' or 'O'. * mtd.c: Include ubi user API header. (ubi_volume_types): New enum decode. (ubi_volume_props): Likewise. (ubi_ioctl): Define. * linux/ubi-user.h: Import from linux 3.8.
151 lines
4.5 KiB
C
151 lines
4.5 KiB
C
/*
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* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
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* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
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* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
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* Copyright (c) 1996-2001 Wichert Akkerman <wichert@cistron.nl>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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#include <asm/ioctl.h>
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static int
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compare(const void *a, const void *b)
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{
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unsigned long code1 = (long) a;
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unsigned long code2 = ((struct_ioctlent *) b)->code;
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return (code1 > code2) ? 1 : (code1 < code2) ? -1 : 0;
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}
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const struct_ioctlent *
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ioctl_lookup(long code)
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{
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struct_ioctlent *iop;
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code &= (_IOC_NRMASK<<_IOC_NRSHIFT) | (_IOC_TYPEMASK<<_IOC_TYPESHIFT);
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iop = bsearch((void*)code, ioctlent,
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nioctlents, sizeof(ioctlent[0]), compare);
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while (iop > ioctlent) {
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iop--;
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if (iop->code != code) {
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iop++;
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break;
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}
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}
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return iop;
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}
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const struct_ioctlent *
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ioctl_next_match(const struct_ioctlent *iop)
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{
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long code;
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code = iop->code;
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iop++;
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if (iop < ioctlent + nioctlents && iop->code == code)
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return iop;
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return NULL;
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}
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int
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ioctl_decode(struct tcb *tcp, long code, long arg)
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{
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switch ((code >> 8) & 0xff) {
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#if defined(ALPHA) || defined(POWERPC)
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case 'f': case 't': case 'T':
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#else /* !ALPHA */
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case 0x54:
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#endif /* !ALPHA */
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return term_ioctl(tcp, code, arg);
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case 0x89:
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return sock_ioctl(tcp, code, arg);
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case 'p':
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return rtc_ioctl(tcp, code, arg);
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case 0x03:
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case 0x12:
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return block_ioctl(tcp, code, arg);
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case 0x22:
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return scsi_ioctl(tcp, code, arg);
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case 'L':
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return loop_ioctl(tcp, code, arg);
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case 'M':
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return mtd_ioctl(tcp, code, arg);
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case 'o':
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case 'O':
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return ubi_ioctl(tcp, code, arg);
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default:
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break;
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}
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return 0;
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}
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/*
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* Registry of ioctl characters, culled from
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* @(#)ioccom.h 1.7 89/06/16 SMI; from UCB ioctl.h 7.1 6/4/86
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*
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* char file where defined notes
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* ---- ------------------ -----
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* F sun/fbio.h
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* G sun/gpio.h
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* H vaxif/if_hy.h
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* M sundev/mcpcmd.h *overlap*
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* M sys/modem.h *overlap*
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* S sys/stropts.h
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* T sys/termio.h -no overlap-
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* T sys/termios.h -no overlap-
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* V sundev/mdreg.h
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* a vaxuba/adreg.h
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* d sun/dkio.h -no overlap with sys/des.h-
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* d sys/des.h (possible overlap)
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* d vax/dkio.h (possible overlap)
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* d vaxuba/rxreg.h (possible overlap)
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* f sys/filio.h
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* g sunwindow/win_ioctl.h -no overlap-
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* g sunwindowdev/winioctl.c !no manifest constant! -no overlap-
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* h sundev/hrc_common.h
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* i sys/sockio.h *overlap*
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* i vaxuba/ikreg.h *overlap*
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* k sundev/kbio.h
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* m sundev/msio.h (possible overlap)
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* m sundev/msreg.h (possible overlap)
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* m sys/mtio.h (possible overlap)
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* n sun/ndio.h
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* p net/nit_buf.h (possible overlap)
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* p net/nit_if.h (possible overlap)
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* p net/nit_pf.h (possible overlap)
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* p sundev/fpareg.h (possible overlap)
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* p sys/sockio.h (possible overlap)
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* p vaxuba/psreg.h (possible overlap)
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* q sun/sqz.h
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* r sys/sockio.h
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* s sys/sockio.h
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* t sys/ttold.h (possible overlap)
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* t sys/ttycom.h (possible overlap)
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* v sundev/vuid_event.h *overlap*
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* v sys/vcmd.h *overlap*
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*
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* End of Registry
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*/
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