| /* |
| * Copyright (c) 2017 Cyril Hrubis <chrubis@suse.cz> |
| * |
| * This program is free software: you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation, either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| /* |
| * Basic test for the BLKROSET and BLKROGET ioctls. |
| * |
| * - Set the device read only, read the value back. |
| * - Try to mount the device read write, expect failure. |
| * - Try to mount the device read only, expect success. |
| */ |
| |
| #include <errno.h> |
| #include <sys/mount.h> |
| #include "tst_test.h" |
| |
| static int fd; |
| |
| static void verify_ioctl(void) |
| { |
| unsigned long ra, rab, rao; |
| |
| SAFE_IOCTL(fd, BLKRAGET, &rao); |
| |
| tst_res(TINFO, "BLKRAGET original value %lu", rao); |
| |
| for (ra = 0; ra <= 512; ra += 64) { |
| SAFE_IOCTL(fd, BLKRASET, ra); |
| SAFE_IOCTL(fd, BLKRAGET, &rab); |
| |
| if (ra == rab) |
| tst_res(TPASS, "BLKRASET %lu read back correctly", ra); |
| else |
| tst_res(TFAIL, "BLKRASET %lu read back %lu", ra, rab); |
| } |
| |
| tst_res(TINFO, "BLKRASET restoring original value %lu", rao); |
| |
| SAFE_IOCTL(fd, BLKRASET, rao); |
| } |
| |
| static void setup(void) |
| { |
| fd = SAFE_OPEN(tst_device->dev, O_RDONLY); |
| } |
| |
| static void cleanup(void) |
| { |
| if (fd > 0) |
| SAFE_CLOSE(fd); |
| } |
| |
| static struct tst_test test = { |
| .tid = "ioctl07", |
| .needs_device = 1, |
| .setup = setup, |
| .cleanup = cleanup, |
| .test_all = verify_ioctl, |
| }; |