Dmitry V. Levin
768d7cb78f
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.
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*
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* Copyright (c) 2007 Vladimir Nadvornik <nadvornik@suse.cz>
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* Copyright (c) 2007-2017 Dmitry V. Levin <ldv@altlinux.org>
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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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#ifdef HAVE_SCSI_SG_H
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# include <scsi/sg.h>
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#endif
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#ifndef SG_IO
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# define SG_IO 0x2285
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#endif
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static int
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decode_sg_io(struct tcb *const tcp, const uint32_t iid,
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const kernel_ulong_t arg)
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{
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switch (iid) {
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case 'S':
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return decode_sg_io_v3(tcp, arg);
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case 'Q':
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return decode_sg_io_v4(tcp, arg);
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default:
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tprintf("[%u]", iid);
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return RVAL_DECODED | 1;
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}
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}
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int
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scsi_ioctl(struct tcb *const tcp, const unsigned int code,
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const kernel_ulong_t arg)
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{
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uint32_t iid;
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if (SG_IO != code)
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return RVAL_DECODED;
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if (entering(tcp)) {
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tprints(", ");
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if (umove_or_printaddr(tcp, arg, &iid)) {
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return RVAL_DECODED | 1;
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} else {
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set_tcb_priv_ulong(tcp, iid);
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return decode_sg_io(tcp, iid, arg);
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}
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} else {
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if (!syserror(tcp)) {
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iid = get_tcb_priv_ulong(tcp);
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decode_sg_io(tcp, iid, arg);
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}
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tprints("}");
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return RVAL_DECODED | 1;
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}
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}
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