strace/scsi.c
Dmitry V. Levin 768d7cb78f Split scsi.c
Move decoders of SG_IO v3 and v4 APIs into separate files,
compile generic SG_IO decoder unconditionally.

* sg_io_v3.c: New file.
* sg_io_v4.c: Likewise.
* Makefile.am (strace_SOURCES): Add them.
* defs.h (decode_sg_io_v3, decode_sg_io_v4): New prototypes.
* ioctl.c (ioctl_decode): Remove [HAVE_SCSI_SG_H] condition.
* scsi.c: (print_sg_io_res): Remove.
(print_sg_io_req): Rename to decode_sg_io, replace print_sg_io_v3_req
with decode_sg_io_v3, replace print_sg_io_v4_req with decode_sg_io_v4,
compile uncoditionally.
(scsi_ioctl): Replace print_sg_io_req and print_sg_io_res
with decode_sg_io, compile uncoditionally.
Move [HAVE_SCSI_SG_H] code to sg_io_v3.c.
Move [HAVE_LINUX_BSG_H] code to sg_io_v4.c.
2017-01-08 00:01:03 +00:00

81 lines
2.4 KiB
C

/*
* Copyright (c) 2007 Vladimir Nadvornik <nadvornik@suse.cz>
* Copyright (c) 2007-2017 Dmitry V. Levin <ldv@altlinux.org>
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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 "defs.h"
#ifdef HAVE_SCSI_SG_H
# include <scsi/sg.h>
#endif
#ifndef SG_IO
# define SG_IO 0x2285
#endif
static int
decode_sg_io(struct tcb *const tcp, const uint32_t iid,
const kernel_ulong_t arg)
{
switch (iid) {
case 'S':
return decode_sg_io_v3(tcp, arg);
case 'Q':
return decode_sg_io_v4(tcp, arg);
default:
tprintf("[%u]", iid);
return RVAL_DECODED | 1;
}
}
int
scsi_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
uint32_t iid;
if (SG_IO != code)
return RVAL_DECODED;
if (entering(tcp)) {
tprints(", ");
if (umove_or_printaddr(tcp, arg, &iid)) {
return RVAL_DECODED | 1;
} else {
set_tcb_priv_ulong(tcp, iid);
return decode_sg_io(tcp, iid, arg);
}
} else {
if (!syserror(tcp)) {
iid = get_tcb_priv_ulong(tcp);
decode_sg_io(tcp, iid, arg);
}
tprints("}");
return RVAL_DECODED | 1;
}
}