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/*
* Check HDIO_* ioctl decoding.
*
* Copyright (c) 2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <linux/hdreg.h>
#include <sys/ioctl.h>
static const char *errstr;
static long
do_ioctl(kernel_ulong_t cmd, kernel_ulong_t arg)
{
long rc = ioctl(-1, cmd, arg);
errstr = sprintrc(rc);
#ifdef INJECT_RETVAL
if (rc != INJECT_RETVAL)
error_msg_and_fail("Got a return value of %ld != %ld",
rc, (long) INJECT_RETVAL);
static char inj_errstr[4096];
snprintf(inj_errstr, sizeof(inj_errstr), "%s (INJECTED)", errstr);
errstr = inj_errstr;
#endif
return rc;
}
static inline long
do_ioctl_ptr(kernel_ulong_t cmd, const void *arg)
{
return do_ioctl(cmd, (uintptr_t) arg);
}
int
main(int argc, char *argv[])
{
#ifdef INJECT_RETVAL
unsigned long num_skip;
bool locked = false;
if (argc < 2)
error_msg_and_fail("Usage: %s NUM_SKIP", argv[0]);
num_skip = strtoul(argv[1], NULL, 0);
for (size_t i = 0; i < num_skip; i++) {
long ret = ioctl(-1, HDIO_GET_UNMASKINTR, 0);
printf("ioctl(-1, %s, 0) = %s%s\n",
XLAT_STR(HDIO_GET_UNMASKINTR), sprintrc(ret),
ret == INJECT_RETVAL ? " (INJECTED)" : "");
if (ret != INJECT_RETVAL)
continue;
locked = true;
break;
}
if (!locked)
error_msg_and_fail("Hasn't locked on ioctl(-1"
", HDIO_GET_UNMASKINTR, 0) returning %d",
INJECT_RETVAL);
#endif
long rc;
/* Decoding is not supported */
static const struct {
uint32_t cmd;
const char *str;
} unsupp_cmds[] = {
{ ARG_STR(HDIO_GET_UNMASKINTR) },
{ ARG_STR(HDIO_GET_MULTCOUNT) },
{ ARG_STR(HDIO_GET_QDMA) },
{ ARG_STR(HDIO_SET_XFER) },
{ ARG_STR(HDIO_OBSOLETE_IDENTITY) },
{ ARG_STR(HDIO_GET_KEEPSETTINGS) },
{ ARG_STR(HDIO_GET_32BIT) },
{ ARG_STR(HDIO_GET_NOWERR) },
{ ARG_STR(HDIO_GET_DMA) },
{ ARG_STR(HDIO_GET_NICE) },
{ ARG_STR(HDIO_GET_IDENTITY) },
{ ARG_STR(HDIO_GET_WCACHE) },
{ ARG_STR(HDIO_GET_ACOUSTIC) },
{ ARG_STR(HDIO_GET_ADDRESS) },
{ ARG_STR(HDIO_GET_BUSSTATE) },
{ ARG_STR(HDIO_TRISTATE_HWIF) },
{ ARG_STR(HDIO_DRIVE_RESET) },
{ ARG_STR(HDIO_DRIVE_TASKFILE) },
{ ARG_STR(HDIO_DRIVE_TASK) },
{ ARG_STR(HDIO_SET_MULTCOUNT) },
{ ARG_STR(HDIO_SET_UNMASKINTR) },
{ ARG_STR(HDIO_SET_KEEPSETTINGS) },
{ ARG_STR(HDIO_SET_32BIT) },
{ ARG_STR(HDIO_SET_NOWERR) },
{ ARG_STR(HDIO_SET_DMA) },
{ ARG_STR(HDIO_SET_PIO_MODE) },
{ ARG_STR(HDIO_SCAN_HWIF) },
{ ARG_STR(HDIO_UNREGISTER_HWIF) },
{ ARG_STR(HDIO_SET_NICE) },
{ ARG_STR(HDIO_SET_WCACHE) },
{ ARG_STR(HDIO_SET_ACOUSTIC) },
{ ARG_STR(HDIO_SET_BUSSTATE) },
{ ARG_STR(HDIO_SET_QDMA) },
{ ARG_STR(HDIO_SET_ADDRESS) },
};
for (size_t i = 0; i < ARRAY_SIZE(unsupp_cmds); i++) {
do_ioctl(unsupp_cmds[i].cmd, 0);
printf("ioctl(-1, " XLAT_FMT ", 0) = %s\n",
XLAT_SEL(unsupp_cmds[i].cmd, unsupp_cmds[i].str),
errstr);
do_ioctl(unsupp_cmds[i].cmd,
(unsigned long) 0xbadc0deddeadc0deULL);
printf("ioctl(-1, " XLAT_FMT ", %#lx) = %s\n",
XLAT_SEL(unsupp_cmds[i].cmd, unsupp_cmds[i].str),
(unsigned long) 0xbadc0deddeadc0deULL, errstr);
}
/* HDIO_GETGEO */
do_ioctl(HDIO_GETGEO, 0);
printf("ioctl(-1, %s, NULL) = %s\n",
XLAT_STR(HDIO_GETGEO), errstr);
TAIL_ALLOC_OBJECT_CONST_PTR(struct hd_geometry, p_hd_geom);
p_hd_geom->heads = 0xca;
p_hd_geom->sectors = 0xfe;
p_hd_geom->cylinders = 0xbabe;
p_hd_geom->start = (unsigned long) 0xbadc0deddeadfaceULL;
do_ioctl_ptr(HDIO_GETGEO, (char *) p_hd_geom + 1);
printf("ioctl(-1, %s, %p) = %s\n",
XLAT_STR(HDIO_GETGEO), (char *) p_hd_geom + 1, errstr);
rc = do_ioctl_ptr(HDIO_GETGEO, p_hd_geom);
printf("ioctl(-1, %s, ", XLAT_STR(HDIO_GETGEO));
if (rc >= 0) {
printf("{heads=202, sectors=254, cylinders=47806, start=%lu}",
(unsigned long) 0xbadc0deddeadfaceULL);
} else {
printf("%p", p_hd_geom);
}
printf(") = %s\n", errstr);
/* HDIO_DRIVE_CMD */
do_ioctl(HDIO_DRIVE_CMD, 0);
printf("ioctl(-1, %s, NULL) = %s\n",
XLAT_STR(HDIO_DRIVE_CMD), errstr);
TAIL_ALLOC_OBJECT_CONST_PTR(struct hd_drive_cmd_hdr, p_hd_drive_cmd);
struct hd_drive_cmd_hdr *p_hd_drive_cmd2 =
tail_alloc(sizeof(*p_hd_drive_cmd2) + 16);
struct hd_drive_cmd_hdr *p_hd_drive_cmd3 =
tail_alloc(sizeof(*p_hd_drive_cmd3) + DEFAULT_STRLEN + 1);
fill_memory(p_hd_drive_cmd2, sizeof(*p_hd_drive_cmd2) + 16);
fill_memory(p_hd_drive_cmd3,
sizeof(*p_hd_drive_cmd3) + DEFAULT_STRLEN + 1);
p_hd_drive_cmd->command = 0xca;
p_hd_drive_cmd->sector_number = 0xff;
p_hd_drive_cmd->feature = 0xee;
p_hd_drive_cmd->sector_count = 0;
do_ioctl_ptr(HDIO_DRIVE_CMD, (char *) p_hd_drive_cmd + 1);
printf("ioctl(-1, %s, %p) = %s\n",
XLAT_STR(HDIO_DRIVE_CMD), (char *) p_hd_drive_cmd + 1, errstr);
for (size_t i = 0; i < 2; i++) {
p_hd_drive_cmd->sector_count = i;
rc = do_ioctl_ptr(HDIO_DRIVE_CMD, p_hd_drive_cmd);
printf("ioctl(-1, %s, {command=" XLAT_FMT ", sector_number=255"
", feature=238, sector_count=%zu",
XLAT_STR(HDIO_DRIVE_CMD),
XLAT_SEL(0xca, "ATA_CMD_WRITE"), i);
if (rc >= 0) {
printf("} => {/* status */ 0xca, /* error */ 255"
", /* nsector */ 238");
if (i)
printf(", %p", p_hd_drive_cmd + 1);
}
printf("}) = %s\n", errstr);
}
rc = do_ioctl_ptr(HDIO_DRIVE_CMD, p_hd_drive_cmd2);
printf("ioctl(-1, %s, {command=0x80" NRAW(" /* ATA_CMD_??? */")
", sector_number=129, feature=130, sector_count=131",
XLAT_STR(HDIO_DRIVE_CMD));
if (rc >= 0) {
printf("} => {/* status */ 0x80, /* error */ 129"
", /* nsector */ 130, %p", p_hd_drive_cmd2 + 1);
}
printf("}) = %s\n", errstr);
rc = do_ioctl_ptr(HDIO_DRIVE_CMD, p_hd_drive_cmd3);
printf("ioctl(-1, %s, {command=0x80" NRAW(" /* ATA_CMD_??? */")
", sector_number=129, feature=130, sector_count=131",
XLAT_STR(HDIO_DRIVE_CMD));
if (rc >= 0) {
printf("} => {/* status */ 0x80, /* error */ 129"
", /* nsector */ 130, ");
print_quoted_hex(p_hd_drive_cmd3 + 1, DEFAULT_STRLEN);
printf("...");
}
printf("}) = %s\n", errstr);
puts("+++ exited with 0 +++");
return 0;
}
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