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/*
* Copyright (c) 2007 Vladimir Nadvornik <nadvornik@suse.cz>
* Copyright (c) 2007-2018 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2007-2019 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include "print_fields.h"
#ifdef HAVE_SCSI_SG_H
# include <scsi/sg.h>
#endif
#define XLAT_MACROS_ONLY
# include "xlat/scsi_sg_commands.h"
#undef XLAT_MACROS_ONLY
#include "xlat/sg_scsi_reset.h"
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_IOCTL_DECODED;
}
}
#ifdef HAVE_SCSI_SG_H
static int
decode_sg_scsi_id(struct tcb *const tcp, const kernel_ulong_t arg)
{
struct sg_scsi_id id;
if (entering(tcp))
return 0;
tprints(", ");
if (!umove_or_printaddr(tcp, arg, &id)) {
PRINT_FIELD_D("{", id, host_no);
PRINT_FIELD_D(", ", id, channel);
PRINT_FIELD_X(", ", id, scsi_id);
PRINT_FIELD_D(", ", id, lun);
PRINT_FIELD_X(", ", id, scsi_type);
PRINT_FIELD_D(", ", id, h_cmd_per_lun);
PRINT_FIELD_D(", ", id, d_queue_depth);
tprints("}");
}
return RVAL_IOCTL_DECODED;
}
#endif /* HAVE_SCSI_SG_H */
int
scsi_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
switch (code) {
case SG_IO:
if (entering(tcp)) {
uint32_t iid;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &iid)) {
break;
} else {
return decode_sg_io(tcp, iid, arg);
}
} else {
uint32_t *piid = get_tcb_priv_data(tcp);
if (piid)
decode_sg_io(tcp, *piid, arg);
tprints("}");
break;
}
#ifdef HAVE_SCSI_SG_H
/* returns struct sg_scsi_id */
case SG_GET_SCSI_ID:
return decode_sg_scsi_id(tcp, arg);
/* returns struct sg_req_info */
case SG_GET_REQUEST_TABLE:
return decode_sg_req_info(tcp, arg);
#endif /* HAVE_SCSI_SG_H */
/* takes a value by pointer */
case SG_SCSI_RESET: {
unsigned int val;
tprints(", ");
if (!umove_or_printaddr(tcp, arg, &val)) {
tprints("[");
if (val & SG_SCSI_RESET_NO_ESCALATE) {
printxval(sg_scsi_reset,
SG_SCSI_RESET_NO_ESCALATE, 0);
tprints("|");
}
printxval(sg_scsi_reset,
val & ~SG_SCSI_RESET_NO_ESCALATE,
"SG_SCSI_RESET_???");
tprints("]");
}
break;
}
/* takes a signed int by pointer */
case SG_NEXT_CMD_LEN:
case SG_SET_COMMAND_Q:
case SG_SET_DEBUG:
case SG_SET_FORCE_LOW_DMA:
case SG_SET_FORCE_PACK_ID:
case SG_SET_KEEP_ORPHAN:
case SG_SET_RESERVED_SIZE:
case SG_SET_TIMEOUT:
tprints(", ");
printnum_int(tcp, arg, "%d");
break;
/* returns a signed int by pointer */
case SG_EMULATED_HOST:
case SG_GET_ACCESS_COUNT:
case SG_GET_COMMAND_Q:
case SG_GET_KEEP_ORPHAN:
case SG_GET_LOW_DMA:
case SG_GET_NUM_WAITING:
case SG_GET_PACK_ID:
case SG_GET_RESERVED_SIZE:
case SG_GET_SG_TABLESIZE:
case SG_GET_TRANSFORM:
case SG_GET_VERSION_NUM:
if (entering(tcp))
return 0;
tprints(", ");
printnum_int(tcp, arg, "%d");
break;
/* takes an integer by value */
case SG_SET_TRANSFORM:
tprintf(", %#x", (unsigned int) arg);
break;
/* no arguments */
case SG_GET_TIMEOUT:
break;
default:
return RVAL_DECODED;
}
return RVAL_IOCTL_DECODED;
}
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