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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" From: Andrea Cervesato This test verifies STATMOUNT_MNT_ROOT and STATMOUNT_MNT_POINT functionalities of statmount(). --- runtest/syscalls | 1 + testcases/kernel/syscalls/statmount/.gitignore | 1 + testcases/kernel/syscalls/statmount/statmount05.c | 136 ++++++++++++++++++++++ 3 files changed, 138 insertions(+) diff --git a/runtest/syscalls b/runtest/syscalls index 81c2f9740..b04aabc6f 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -1542,6 +1542,7 @@ statmount01 statmount01 statmount02 statmount02 statmount03 statmount03 statmount04 statmount04 +statmount05 statmount05 statfs01 statfs01 statfs01_64 statfs01_64 diff --git a/testcases/kernel/syscalls/statmount/.gitignore b/testcases/kernel/syscalls/statmount/.gitignore index e720050b5..f64763242 100644 --- a/testcases/kernel/syscalls/statmount/.gitignore +++ b/testcases/kernel/syscalls/statmount/.gitignore @@ -2,3 +2,4 @@ statmount01 statmount02 statmount03 statmount04 +statmount05 diff --git a/testcases/kernel/syscalls/statmount/statmount05.c b/testcases/kernel/syscalls/statmount/statmount05.c new file mode 100644 index 000000000..61ac462e1 --- /dev/null +++ b/testcases/kernel/syscalls/statmount/statmount05.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2024 SUSE LLC Andrea Cervesato + */ + +/*\ + * [Description] + * + * This test verifies STATMOUNT_MNT_ROOT and STATMOUNT_MNT_POINT functionalities + * of statmount(). In particular, STATMOUNT_MNT_ROOT will give the mount root + * (i.e. mount --bind /mnt /bla -> /mnt) and STATMOUNT_MNT_POINT will + * give the mount point (i.e. mount --bind /mnt /bla -> /bla). + * + * [Algorithm] + * + * * create a mount point + * * mount a folder inside the mount point + * * run statmount() on the mounted folder using STATMOUNT_MNT_ROOT + * * read results and check if contain the mount root path + * * run statmount() on the mounted folder using STATMOUNT_MNT_POINT + * * read results and check if contain the mount point path + */ + +#include "statmount.h" +#include "lapi/stat.h" +#include "lapi/sched.h" + +#define MNTPOINT "mntpoint" +#define DIRA MNTPOINT "/LTP_DIR_A" +#define DIRB MNTPOINT "/LTP_DIR_B" +#define SM_SIZE (1 << 10) + +static uint64_t root_id; +static struct statmount *st_mount; +static char mnt_root[PATH_MAX]; +static char mnt_point[PATH_MAX]; + +static void test_mount_root(void) +{ + tst_res(TINFO, "Testing STATMOUNT_MNT_ROOT"); + + char *last_root; + + memset(st_mount, 0, SM_SIZE); + + TST_EXP_PASS(statmount( + root_id, + STATMOUNT_MNT_ROOT, + st_mount, + SM_SIZE, + 0)); + + if (TST_RET == -1) + return; + + last_root = strrchr(mnt_root, '/'); + + TST_EXP_EQ_LI(st_mount->mask, STATMOUNT_MNT_ROOT); + TST_EXP_EXPR(strcmp(st_mount->str + st_mount->mnt_root, last_root) == 0, + "statmount() read '%s', expected '%s'", + st_mount->str + st_mount->mnt_root, + last_root); +} + +static void test_mount_point(void) +{ + tst_res(TINFO, "Testing STATMOUNT_MNT_POINT"); + + memset(st_mount, 0, SM_SIZE); + + TST_EXP_POSITIVE(statmount( + root_id, + STATMOUNT_MNT_POINT, + st_mount, + SM_SIZE, + 0)); + + if (TST_RET == -1) + return; + + TST_EXP_EQ_LI(st_mount->mask, STATMOUNT_MNT_POINT); + TST_EXP_EXPR(strcmp(st_mount->str + st_mount->mnt_point, mnt_point) == 0, + "mount point is '%s'", + st_mount->str + st_mount->mnt_point); +} + +static void run(void) +{ + test_mount_root(); + test_mount_point(); +} + +static void setup(void) +{ + char *tmpdir; + struct statx sx; + + tmpdir = tst_get_tmpdir(); + snprintf(mnt_root, PATH_MAX, "%s/%s", tmpdir, DIRA); + snprintf(mnt_point, PATH_MAX, "%s/%s", tmpdir, DIRB); + free(tmpdir); + + SAFE_MKDIR(mnt_root, 0700); + SAFE_MKDIR(mnt_point, 0700); + SAFE_MOUNT(mnt_root, mnt_point, "none", MS_BIND, NULL); + + SAFE_STATX(AT_FDCWD, mnt_point, 0, STATX_MNT_ID_UNIQUE, &sx); + root_id = sx.stx_mnt_id; +} + +static void cleanup(void) +{ + if (tst_is_mounted(DIRB)) + SAFE_UMOUNT(DIRB); + + if (tst_is_mounted(DIRA)) + SAFE_UMOUNT(DIRA); +} + +static struct tst_test test = { + .test_all = run, + .setup = setup, + .cleanup = cleanup, + .min_kver = "6.8", + .mount_device = 1, + .mntpoint = MNTPOINT, + .all_filesystems = 1, + .skip_filesystems = (const char *const []) { + "fuse", + NULL + }, + .bufs = (struct tst_buffers []) { + {&st_mount, .size = SM_SIZE}, + {} + } +}; -- 2.35.3 -- Mailing list info: https://lists.linux.it/listinfo/ltp