Dmitry V. Levin
b93d52fe3d
strace is now provided under the terms of the GNU Lesser General Public License version 2.1 or later, see COPYING for more details. strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
164 lines
3.1 KiB
C
164 lines
3.1 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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* SPDX-License-Identifier: LGPL-2.1-or-later
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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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#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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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_IOCTL_DECODED;
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}
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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_IOCTL_DECODED;
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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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{
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switch (code) {
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case SG_IO:
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if (entering(tcp)) {
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uint32_t iid;
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tprints(", ");
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if (umove_or_printaddr(tcp, arg, &iid)) {
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break;
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} else {
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return decode_sg_io(tcp, iid, arg);
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}
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} else {
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uint32_t *piid = get_tcb_priv_data(tcp);
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if (piid)
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decode_sg_io(tcp, *piid, arg);
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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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return RVAL_IOCTL_DECODED;
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}
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