90 lines
1.7 KiB
C
90 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz>
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*/
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/*
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* Basic test for the BLKROSET and BLKROGET ioctls.
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*
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* - Set the device read only, read the value back.
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* - Try to mount the device read write, expect failure.
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* - Try to mount the device read only, expect success.
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*/
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#include <errno.h>
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#include <sys/mount.h>
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#include "tst_test.h"
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static int fd;
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static void verify_ioctl(void)
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{
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int ro = 1;
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SAFE_IOCTL(fd, BLKROGET, &ro);
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if (ro == 0)
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tst_res(TPASS, "BLKROGET returned 0");
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else
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tst_res(TFAIL, "BLKROGET returned %i", ro);
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ro = 1;
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SAFE_IOCTL(fd, BLKROSET, &ro);
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ro = 0;
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SAFE_IOCTL(fd, BLKROGET, &ro);
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if (ro == 0)
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tst_res(TFAIL, "BLKROGET returned 0");
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else
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tst_res(TPASS, "BLKROGET returned %i", ro);
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TEST(mount(tst_device->dev, "mntpoint", tst_device->fs_type, 0, NULL));
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if (TST_RET != -1) {
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tst_res(TFAIL, "Mounting RO device RW succeeded");
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tst_umount("mntpoint");
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goto next;
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}
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if (TST_ERR == EACCES) {
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tst_res(TPASS | TTERRNO, "Mounting RO device RW failed");
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goto next;
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}
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tst_res(TFAIL | TTERRNO,
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"Mounting RO device RW failed unexpectedly expected EACCES");
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next:
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TEST(mount(tst_device->dev, "mntpoint", tst_device->fs_type, MS_RDONLY, NULL));
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if (TST_RET == 0) {
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tst_res(TPASS, "Mounting RO device RO works");
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tst_umount("mntpoint");
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} else {
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tst_res(TFAIL | TTERRNO, "Mounting RO device RO failed");
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}
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ro = 0;
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SAFE_IOCTL(fd, BLKROSET, &ro);
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}
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static void setup(void)
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{
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SAFE_MKDIR("mntpoint", 0777);
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fd = SAFE_OPEN(tst_device->dev, O_RDONLY);
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}
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static void cleanup(void)
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{
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if (fd > 0)
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SAFE_CLOSE(fd);
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}
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static struct tst_test test = {
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.format_device = 1,
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.needs_root = 1,
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.setup = setup,
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.cleanup = cleanup,
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.test_all = verify_ioctl,
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};
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