tests/ioctl_block.c

/*
 * This file is part of ioctl_block strace test.
 *
 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "tests.h"
#include <errno.h>
#include <inttypes.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <linux/fs.h>
#include <linux/blkpg.h>
#ifdef HAVE_STRUCT_BLK_USER_TRACE_SETUP
# include <linux/blktrace_api.h>
#endif
#include "xlat.h"

static const unsigned int magic = 0xdeadbeef;
static const unsigned long lmagic = (unsigned long) 0xdeadbeefbadc0ded;

static void
init_magic(void *addr, const unsigned int size)
{
	unsigned int *p = addr;
	const unsigned int *end = addr + size - sizeof(int);

	for (; p <= end; ++p)
		*(unsigned int *) p = magic;
}

static struct xlat block_argless[] = {
	XLAT(BLKRRPART),
	XLAT(BLKFLSBUF),
#ifdef BLKTRACESTART
	XLAT(BLKTRACESTART),
#endif
#ifdef BLKTRACESTOP
	XLAT(BLKTRACESTOP),
#endif
#ifdef BLKTRACETEARDOWN
	XLAT(BLKTRACETEARDOWN),
#endif
};

#define TEST_NULL_ARG(cmd) \
	ioctl(-1, cmd, 0); \
	printf("ioctl(-1, %s, NULL) = -1 EBADF (%m)\n", #cmd)

int
main(void)
{
	TEST_NULL_ARG(BLKBSZGET);
	TEST_NULL_ARG(BLKBSZSET);
	TEST_NULL_ARG(BLKFRAGET);
	TEST_NULL_ARG(BLKGETSIZE);
	TEST_NULL_ARG(BLKGETSIZE64);
	TEST_NULL_ARG(BLKPG);
	TEST_NULL_ARG(BLKRAGET);
	TEST_NULL_ARG(BLKROGET);
	TEST_NULL_ARG(BLKROSET);
	TEST_NULL_ARG(BLKSECTGET);
	TEST_NULL_ARG(BLKSECTGET);
	TEST_NULL_ARG(BLKSSZGET);
#ifdef BLKALIGNOFF
	TEST_NULL_ARG(BLKALIGNOFF);
#endif
#ifdef BLKDAXGET
	TEST_NULL_ARG(BLKDAXGET);
#endif
#ifdef BLKDISCARD
	TEST_NULL_ARG(BLKDISCARD);
#endif
#ifdef BLKDISCARDZEROES
	TEST_NULL_ARG(BLKDISCARDZEROES);
#endif
#ifdef BLKIOMIN
	TEST_NULL_ARG(BLKIOMIN);
#endif
#ifdef BLKIOOPT
	TEST_NULL_ARG(BLKIOOPT);
#endif
#ifdef BLKPBSZGET
	TEST_NULL_ARG(BLKPBSZGET);
#endif
#ifdef BLKROTATIONAL
	TEST_NULL_ARG(BLKROTATIONAL);
#endif
#ifdef BLKSECDISCARD
	TEST_NULL_ARG(BLKSECDISCARD);
#endif
#ifdef BLKZEROOUT
	TEST_NULL_ARG(BLKZEROOUT);
#endif
#if defined BLKTRACESETUP && defined HAVE_STRUCT_BLK_USER_TRACE_SETUP
	TEST_NULL_ARG(BLKTRACESETUP);
#endif

	ioctl(-1, BLKRASET, lmagic);
	printf("ioctl(-1, BLKRASET, %lu) = -1 EBADF (%m)\n", lmagic);

	ioctl(-1, BLKFRASET, lmagic);
	printf("ioctl(-1, BLKFRASET, %lu) = -1 EBADF (%m)\n", lmagic);

	int *const val_int = tail_alloc(sizeof(*val_int));
	*val_int = magic;

	ioctl(-1, BLKROSET, val_int);
	printf("ioctl(-1, BLKROSET, [%d]) = -1 EBADF (%m)\n", *val_int);

	ioctl(-1, BLKBSZSET, val_int);
	printf("ioctl(-1, BLKBSZSET, [%d]) = -1 EBADF (%m)\n", *val_int);

	uint64_t *pair_int64 = tail_alloc(sizeof(*pair_int64) * 2);
	pair_int64[0] = 0xdeadbeefbadc0ded;
	pair_int64[1] = 0xfacefeedcafef00d;

#ifdef BLKDISCARD
	ioctl(-1, BLKDISCARD, pair_int64);
	printf("ioctl(-1, BLKDISCARD, [%" PRIu64 ", %" PRIu64 "])"
	       " = -1 EBADF (%m)\n", pair_int64[0], pair_int64[1]);
#endif

#ifdef BLKSECDISCARD
	ioctl(-1, BLKSECDISCARD, pair_int64);
	printf("ioctl(-1, BLKSECDISCARD, [%" PRIu64 ", %" PRIu64 "])"
	       " = -1 EBADF (%m)\n", pair_int64[0], pair_int64[1]);
#endif

#ifdef BLKZEROOUT
	ioctl(-1, BLKZEROOUT, pair_int64);
	printf("ioctl(-1, BLKZEROOUT, [%" PRIu64 ", %" PRIu64 "])"
	       " = -1 EBADF (%m)\n", pair_int64[0], pair_int64[1]);
#endif

	struct blkpg_ioctl_arg *const blkpg = tail_alloc(sizeof(*blkpg));
	blkpg->op = 3;
	blkpg->flags = 0xdeadbeef;
	blkpg->datalen = 0xbadc0ded;
	blkpg->data = (void *) (unsigned long) 0xcafef00dfffffeed;

	ioctl(-1, BLKPG, blkpg);
	printf("ioctl(-1, BLKPG, {%s, flags=%d, datalen=%d"
	       ", data=%#lx}) = -1 EBADF (%m)\n",
	       "BLKPG_RESIZE_PARTITION", blkpg->flags, blkpg->datalen,
	       (unsigned long) blkpg->data);

	struct blkpg_partition *const bp = tail_alloc(sizeof(*bp));
	bp->start = 0xfac1fed2dad3bef4;
	bp->length = 0xfac5fed6dad7bef8;
	bp->pno = magic;
	memset(bp->devname, 'A', sizeof(bp->devname));
	memset(bp->volname, 'B', sizeof(bp->volname));
	blkpg->op = 1;
	blkpg->data = bp;

	ioctl(-1, BLKPG, blkpg);
	printf("ioctl(-1, BLKPG, {%s, flags=%d, datalen=%d"
	       ", data={start=%lld, length=%lld, pno=%d"
	       ", devname=\"%.*s\", volname=\"%.*s\"}})"
	       " = -1 EBADF (%m)\n",
	       "BLKPG_ADD_PARTITION",
	       blkpg->flags, blkpg->datalen,
	       bp->start, bp->length, bp->pno,
	       (int) sizeof(bp->devname) - 1, bp->devname,
	       (int) sizeof(bp->volname) - 1, bp->volname);

#if defined BLKTRACESETUP && defined HAVE_STRUCT_BLK_USER_TRACE_SETUP
	struct blk_user_trace_setup *const buts = tail_alloc(sizeof(*buts));
	init_magic(buts, sizeof(*buts));

	ioctl(-1, BLKTRACESETUP, buts);
	printf("ioctl(-1, BLKTRACESETUP, {act_mask=%hu, buf_size=%u, buf_nr=%u"
	       ", start_lba=%" PRI__u64 ", end_lba=%" PRI__u64 ", pid=%u})"
	       " = -1 EBADF (%m)\n",
	       buts->act_mask, buts->buf_size, buts->buf_nr,
	       buts->start_lba, buts->end_lba, buts->pid);
#endif

	unsigned int i;
	for (i = 0; i < ARRAY_SIZE(block_argless); ++i) {
		ioctl(-1, (unsigned long) block_argless[i].val, lmagic);
		printf("ioctl(-1, %s) = -1 EBADF (%m)\n", block_argless[i].str);
	}

	ioctl(-1, _IOC(_IOC_READ, 0x12, 0xfe, 0xff), lmagic);
	printf("ioctl(-1, %s, %#lx) = -1 EBADF (%m)\n",
	       "_IOC(_IOC_READ, 0x12, 0xfe, 0xff)", lmagic);

	puts("+++ exited with 0 +++");
	return 0;
}