scsi: implement decoding of all SG_* ioctl commands
* print_sg_req_info.c: New file. * Makefile.am (strace_SOURCES): Add it. * xlat/sg_scsi_reset.in: New file. * scsi.c: Include "xlat/sg_scsi_reset.h". (scsi_ioctl): Implement decoding of all SG_* ioctl commands.
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6919e370f9
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@ -185,6 +185,7 @@ strace_SOURCES = \
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print_dev_t.c \
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print_mq_attr.c \
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print_msgbuf.c \
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print_sg_req_info.c \
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print_sigevent.c \
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print_statfs.c \
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print_struct_stat.c \
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74
print_sg_req_info.c
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74
print_sg_req_info.c
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@ -0,0 +1,74 @@
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/*
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* Decode struct sg_req_info.
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*
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* Copyright (c) 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 DEF_MPERS_TYPE(struct_sg_req_info)
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# include <scsi/sg.h>
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typedef struct sg_req_info struct_sg_req_info;
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#endif /* HAVE_SCSI_SG_H */
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#include MPERS_DEFS
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#ifdef HAVE_SCSI_SG_H
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MPERS_PRINTER_DECL(int, decode_sg_req_info,
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struct tcb *const tcp, const kernel_ulong_t arg)
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{
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struct_sg_req_info info;
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if (entering(tcp))
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return 0;
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tprints(", ");
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if (!umove_or_printaddr(tcp, arg, &info)) {
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tprintf("{req_state=%hhd"
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", orphan=%hhd"
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", sg_io_owned=%hhd"
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", problem=%hhd"
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", pack_id=%d"
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", usr_ptr=",
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info.req_state,
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info.orphan,
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info.sg_io_owned,
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info.problem,
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info.pack_id);
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printaddr(ptr_to_kulong(info.usr_ptr));
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tprintf(", duration=%u}", info.duration);
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}
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return RVAL_DECODED | 1;
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}
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#endif /* HAVE_SCSI_SG_H */
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103
scsi.c
103
scsi.c
@ -33,6 +33,7 @@
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#endif
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#include "xlat/scsi_sg_commands.h"
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#include "xlat/sg_scsi_reset.h"
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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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@ -50,6 +51,38 @@ decode_sg_io(struct tcb *const tcp, const uint32_t iid,
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}
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#ifdef HAVE_SCSI_SG_H
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static int
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decode_sg_scsi_id(struct tcb *const tcp, const kernel_ulong_t arg)
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{
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struct sg_scsi_id id;
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if (entering(tcp))
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return 0;
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tprints(", ");
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if (!umove_or_printaddr(tcp, arg, &id)) {
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tprintf("{host_no=%d"
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", channel=%d"
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", scsi_id=%#x"
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", lun=%d"
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", scsi_type=%#x"
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", h_cmd_per_lun=%hd"
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", d_queue_depth=%hd}",
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id.host_no,
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id.channel,
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id.scsi_id,
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id.lun,
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id.scsi_type,
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id.h_cmd_per_lun,
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id.d_queue_depth);
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}
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return RVAL_DECODED | 1;
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}
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#endif /* HAVE_SCSI_SG_H */
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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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@ -72,6 +105,76 @@ scsi_ioctl(struct tcb *const tcp, const unsigned int code,
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tprints("}");
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break;
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}
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#ifdef HAVE_SCSI_SG_H
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/* returns struct sg_scsi_id */
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case SG_GET_SCSI_ID:
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return decode_sg_scsi_id(tcp, arg);
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/* returns struct sg_req_info */
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case SG_GET_REQUEST_TABLE:
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return decode_sg_req_info(tcp, arg);
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#endif /* HAVE_SCSI_SG_H */
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/* takes a value by pointer */
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case SG_SCSI_RESET: {
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unsigned int val;
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tprints(", ");
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if (!umove_or_printaddr(tcp, arg, &val)) {
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tprints("[");
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if (val & SG_SCSI_RESET_NO_ESCALATE) {
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printxval(sg_scsi_reset,
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SG_SCSI_RESET_NO_ESCALATE, 0);
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tprints("|");
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}
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printxval(sg_scsi_reset,
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val & ~SG_SCSI_RESET_NO_ESCALATE,
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"SG_SCSI_RESET_???");
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tprints("]");
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}
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break;
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}
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/* takes a signed int by pointer */
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case SG_NEXT_CMD_LEN:
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case SG_SET_COMMAND_Q:
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case SG_SET_DEBUG:
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case SG_SET_FORCE_LOW_DMA:
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case SG_SET_FORCE_PACK_ID:
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case SG_SET_KEEP_ORPHAN:
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case SG_SET_RESERVED_SIZE:
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case SG_SET_TIMEOUT:
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tprints(", ");
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printnum_int(tcp, arg, "%d");
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break;
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/* returns a signed int by pointer */
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case SG_EMULATED_HOST:
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case SG_GET_ACCESS_COUNT:
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case SG_GET_COMMAND_Q:
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case SG_GET_KEEP_ORPHAN:
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case SG_GET_LOW_DMA:
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case SG_GET_NUM_WAITING:
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case SG_GET_PACK_ID:
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case SG_GET_RESERVED_SIZE:
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case SG_GET_SG_TABLESIZE:
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case SG_GET_TRANSFORM:
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case SG_GET_VERSION_NUM:
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if (entering(tcp))
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return 0;
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tprints(", ");
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printnum_int(tcp, arg, "%d");
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break;
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/* takes an integer by value */
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case SG_SET_TRANSFORM:
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tprintf(", %#x", (unsigned int) arg);
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break;
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/* no arguments */
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case SG_GET_TIMEOUT:
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break;
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default:
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return RVAL_DECODED;
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}
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6
xlat/sg_scsi_reset.in
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6
xlat/sg_scsi_reset.in
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SG_SCSI_RESET_NOTHING 0
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SG_SCSI_RESET_DEVICE 1
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SG_SCSI_RESET_BUS 2
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SG_SCSI_RESET_HOST 3
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SG_SCSI_RESET_TARGET 4
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SG_SCSI_RESET_NO_ESCALATE 0x100
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