[PATCH] tests: check decoding of LOOP_* ioctls
JingPiao Chen
chenjingpiao at gmail.com
Thu Dec 15 16:05:02 UTC 2016
>From c40ccc35dc8e40fc6dc331af3d1884a54bc72784 Mon Sep 17 00:00:00 2001
From: JingPiao Chen <chenjingpiao at gmail.com>
Date: Fri, 16 Dec 2016 00:02:55 +0800
Subject: [PATCH] tests: check decoding of LOOP_* ioctls
* tests/ioctl_loop.c: New file.
* tests/ioctl_loop-v.c: Likewise.
* tests/ioctl_loop.test: New test.
* tests/ioctl_loop-v.test: Likewise.
* tests/.gitignore: Add ioctl_loop and ioctl_loop-v.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add ioctl_loop.test and ioctl_loop-v.test.
---
tests/.gitignore | 2 +
tests/Makefile.am | 4 ++
tests/ioctl_loop-v.c | 2 +
tests/ioctl_loop-v.test | 12 ++++
tests/ioctl_loop.c | 184
++++++++++++++++++++++++++++++++++++++++++++++++
tests/ioctl_loop.test | 12 ++++
6 files changed, 216 insertions(+)
create mode 100644 tests/ioctl_loop-v.c
create mode 100755 tests/ioctl_loop-v.test
create mode 100644 tests/ioctl_loop.c
create mode 100755 tests/ioctl_loop.test
diff --git a/tests/.gitignore b/tests/.gitignore
index 0d7ec86..a206c75 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -118,6 +118,8 @@ ioctl_dm-v
ioctl_evdev
ioctl_evdev-v
ioctl_mtd
+ioctl_loop
+ioctl_loop-v
ioctl_rtc
ioctl_rtc-v
ioctl_uffdio
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 90851a4..410d3f2 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -180,6 +180,8 @@ check_PROGRAMS = \
ioctl_evdev \
ioctl_evdev-v \
ioctl_mtd \
+ ioctl_loop \
+ ioctl_loop-v \
ioctl_rtc \
ioctl_rtc-v \
ioctl_uffdio \
@@ -566,6 +568,8 @@ DECODER_TESTS = \
ioctl_evdev.test \
ioctl_evdev-v.test \
ioctl_mtd.test \
+ ioctl_loop.test \
+ ioctl_loop-v.test \
ioctl_rtc.test \
ioctl_rtc-v.test \
ioctl_uffdio.test \
diff --git a/tests/ioctl_loop-v.c b/tests/ioctl_loop-v.c
new file mode 100644
index 0000000..22e7572
--- /dev/null
+++ b/tests/ioctl_loop-v.c
@@ -0,0 +1,2 @@
+#define VERBOSE 1
+#include "ioctl_loop.c"
diff --git a/tests/ioctl_loop-v.test b/tests/ioctl_loop-v.test
new file mode 100755
index 0000000..7faa859
--- /dev/null
+++ b/tests/ioctl_loop-v.test
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# Check verbose decoding LOOP_* ioctls.
+
+. "${srcdir=.}/init.sh"
+
+run_prog > /dev/null
+run_strace -a22 -veioctl $args > "$EXP"
+check_prog grep
+grep -v '^ioctl([012],' < "$LOG" > "$OUT"
+match_diff "$OUT" "$EXP"
+rm -f "$EXP" "$OUT"
diff --git a/tests/ioctl_loop.c b/tests/ioctl_loop.c
new file mode 100644
index 0000000..323468a
--- /dev/null
+++ b/tests/ioctl_loop.c
@@ -0,0 +1,184 @@
+/*
+ * This file is part of ioctl_loop strace test.
+ *
+ * Copyright (c) 2016 JingPiao Chen <chenjingpiao at gmail.com>
+ * 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 <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <sys/ioctl.h>
+#include <linux/loop.h>
+
+# ifndef VERBOSE
+# define VERBOSE 0
+# endif
+
+static const unsigned int magic = 0xdeadbeef;
+static const unsigned long lmagic = (unsigned long) 0xdeadbeefbadc0dedULL;
+
+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;
+}
+
+int
+main(void)
+{
+ ioctl(-1, LOOP_SET_FD, magic);
+ printf("ioctl(-1, LOOP_SET_FD, %d) = -1 EBADF (%m)\n", magic);
+
+ ioctl(-1, LOOP_CLR_FD, 0);
+ printf("ioctl(-1, LOOP_CLR_FD) = -1 EBADF (%m)\n");
+
+ struct loop_info *const info = tail_alloc(sizeof(*info));
+ init_magic(info, sizeof(*info));
+ info->lo_encrypt_type = LO_CRYPT_NONE;
+ info->lo_flags = LO_FLAGS_READ_ONLY;
+ memset(info->lo_name, 'A', sizeof(info->lo_name));
+ memset(info->lo_encrypt_key, 'B', sizeof(info->lo_encrypt_key));
+ ioctl(-1, LOOP_SET_STATUS, info);
+ printf("ioctl(-1, LOOP_SET_STATUS, {lo_number=%d", info->lo_number);
+# if VERBOSE
+ printf(", lo_device=%#lx, lo_inode=%lu, lo_rdevice=%#lx",
+ (unsigned long) info->lo_device,
+ info->lo_inode,
+ (unsigned long) info->lo_rdevice);
+# endif /* VERBOSE */
+
+ printf(", lo_offset=%#x", info->lo_offset);
+
+# if VERBOSE
+ printf(", lo_encrypt_type=LO_CRYPT_NONE, lo_encrypt_key_size=%d",
+ info->lo_encrypt_key_size);
+#endif /* VERBOSE */
+
+ printf(", lo_flags=LO_FLAGS_READ_ONLY, lo_name=\"%.*s\"",
+ (int) sizeof(info->lo_name) - 1, info->lo_name);
+
+# if VERBOSE
+ printf(", lo_encrypt_key=\"%.*s\"",
+ (int) sizeof(info->lo_encrypt_key),
+ info->lo_encrypt_key);
+#endif /* VERBOSE */
+# if VERBOSE
+ printf(", lo_init=[%#lx, %#lx]"
+ ", reserved=[%#x, %#x, %#x, %#x]}",
+ info->lo_init[0], info->lo_init[1],
+ info->reserved[0], info->reserved[1],
+ info->reserved[2], info->reserved[3]);
+# else /* !VERBOSE */
+ printf(", ...}");
+#endif /* VERBOSE */
+ printf(") = -1 EBADF (%m)\n");
+
+ ioctl(-1, LOOP_GET_STATUS, info);
+ printf("ioctl(-1, LOOP_GET_STATUS, %#llx) = -1 EBADF (%m)\n",
+ (long long) info);
+
+ struct loop_info64 *const info64 = tail_alloc(sizeof(*info64));
+ init_magic(info64, sizeof(*info64));
+ info64->lo_flags = LO_FLAGS_READ_ONLY;
+ info64->lo_encrypt_type = LO_CRYPT_NONE;
+ memset(info64->lo_file_name, 'C', sizeof(info64->lo_file_name));
+ memset(info64->lo_crypt_name, 'D', sizeof(info64->lo_crypt_name));
+ memset(info64->lo_encrypt_key, 'E', sizeof(info64->lo_encrypt_key));
+ ioctl(-1, LOOP_SET_STATUS64, info64);
+ printf("ioctl(-1, LOOP_SET_STATUS64, ");
+# if VERBOSE
+ printf("{lo_device=%" PRIu64 ", lo_inode=%" PRIu64
+ ", lo_rdevice=%" PRIu64 ", lo_offset=%#" PRIx64
+ ", lo_sizelimit=%" PRIu64 ", lo_number=%" PRIu32,
+ (uint64_t) info64->lo_device,
+ (uint64_t) info64->lo_inode,
+ (uint64_t) info64->lo_rdevice,
+ (uint64_t) info64->lo_offset,
+ (uint64_t) info64->lo_sizelimit,
+ (uint32_t) info64->lo_number);
+#else /* !VERBOSE */
+ printf("{lo_offset=%#" PRIx64 ", lo_number=%" PRIu32,
+ (uint64_t) info64->lo_offset,
+ (uint32_t) info64->lo_number);
+#endif /* VERBOSE */
+
+# if VERBOSE
+ printf(", lo_encrypt_type=LO_CRYPT_NONE, lo_encrypt_key_size=%" PRIu32,
+ info64->lo_encrypt_key_size);
+# endif /* VERBOSE */
+
+ printf(", lo_flags=LO_FLAGS_READ_ONLY, lo_file_name=\"%.*s\"",
+ (int) sizeof(info64->lo_file_name) - 1, info64->lo_file_name);
+
+# if VERBOSE
+ printf(", lo_crypt_name=\"%.*s\", lo_encrypt_key=\"%.*s\"",
+ (int) sizeof(info64->lo_crypt_name) - 1,
+ info64->lo_crypt_name,
+ (int) sizeof(info64->lo_encrypt_key),
+ info64->lo_encrypt_key);
+# endif /* VERBOSE */
+
+# if VERBOSE
+ printf(", lo_init=[%#" PRIx64 ", %#" PRIx64 "]}",
+ (uint64_t) info64->lo_init[0],
+ (uint64_t) info64->lo_init[1]);
+# else /* !VERBOSE */
+ printf(", ...}");
+# endif /* VERBOSE */
+
+ printf(") = -1 EBADF (%m)\n");
+
+ ioctl(-1, LOOP_GET_STATUS64, info64);
+ printf("ioctl(-1, LOOP_GET_STATUS64, %#llx) = -1 EBADF (%m)\n",
+ (long long) info64);
+
+ ioctl(-1, LOOP_CHANGE_FD, magic);
+ printf("ioctl(-1, LOOP_CHANGE_FD, %d) = -1 EBADF (%m)\n", magic);
+
+ ioctl(-1, LOOP_SET_CAPACITY, 0);
+ printf("ioctl(-1, LOOP_SET_CAPACITY) = -1 EBADF (%m)\n");
+
+ ioctl(-1, LOOP_SET_DIRECT_IO, lmagic);
+ printf("ioctl(-1, LOOP_SET_DIRECT_IO, %lu) = -1 EBADF (%m)\n", lmagic);
+
+ ioctl(-1, LOOP_CTL_ADD, magic);
+ printf("ioctl(-1, LOOP_CTL_ADD, %d) = -1 EBADF (%m)\n", magic);
+
+ ioctl(-1, LOOP_CTL_REMOVE, magic);
+ printf("ioctl(-1, LOOP_CTL_REMOVE, %d) = -1 EBADF (%m)\n", magic);
+
+ ioctl(-1, LOOP_CTL_GET_FREE, 0);
+ printf("ioctl(-1, LOOP_CTL_GET_FREE) = -1 EBADF (%m)\n");
+
+ puts("+++ exited with 0 +++");
+ return 0;
+}
diff --git a/tests/ioctl_loop.test b/tests/ioctl_loop.test
new file mode 100755
index 0000000..112cd63
--- /dev/null
+++ b/tests/ioctl_loop.test
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# Check decoding of LOOP_* ioctls.
+
+. "${srcdir=.}/init.sh"
+
+run_prog > /dev/null
+run_strace -a22 -eioctl $args > "$EXP"
+check_prog grep
+grep -v '^ioctl([012],' < "$LOG" > "$OUT"
+match_diff "$OUT" "$EXP"
+rm -f "$EXP" "$OUT"
--
2.7.4
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