[LTP] [PATCH v2 4/7] Add ioctl_ficlone03 test

Andrea Cervesato
2024-07-23T07:16:38Z

From: Andrea Cervesato <andrea.cervesato@suse.com>

This test verifies that ioctl() FICLONE/FICLONERANGE feature correctly
raises exceptions when it's supposed to.

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
runtest/syscalls | 1 +
testcases/kernel/syscalls/ioctl/.gitignore | 1 +
testcases/kernel/syscalls/ioctl/ioctl_ficlone03.c | 124 ++++++++++++++++++++++
3 files changed, 126 insertions(+)

diff --git a/runtest/syscalls b/runtest/syscalls
index 48fe85c97..5aef2b97e 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -594,6 +594,7 @@ ioctl_sg01 ioctl_sg01

ioctl_ficlone01 ioctl_ficlone01
ioctl_ficlone02 ioctl_ficlone02
+ioctl_ficlone03 ioctl_ficlone03

inotify_init1_01 inotify_init1_01
inotify_init1_02 inotify_init1_02
diff --git a/testcases/kernel/syscalls/ioctl/.gitignore b/testcases/kernel/syscalls/ioctl/.gitignore
index 3d25fdfb2..d0b470714 100644
--- a/testcases/kernel/syscalls/ioctl/.gitignore
+++ b/testcases/kernel/syscalls/ioctl/.gitignore
@@ -24,3 +24,4 @@
/ioctl_sg01
/ioctl_ficlone01
/ioctl_ficlone02
+/ioctl_ficlone03
diff --git a/testcases/kernel/syscalls/ioctl/ioctl_ficlone03.c b/testcases/kernel/syscalls/ioctl/ioctl_ficlone03.c
new file mode 100644
index 000000000..be069836a
--- /dev/null
+++ b/testcases/kernel/syscalls/ioctl/ioctl_ficlone03.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2024 Andrea Cervesato andrea.cervesato@suse.com
+ */
+
+/*\
+ * [Description]
+ *
+ * This test verifies that ioctl() FICLONE/FICLONERANGE feature correctly raises
+ * exceptions when it's supposed to.
+ */
+
+#include "tst_test.h"
+#include "lapi/fs.h"
+
+#define MNTPOINT "mnt"
+
+static struct file_clone_range *clone_range;
+
+static int invalid_fd = -1;
+static int rw_file = -1;
+static int ro_file = -1;
+static int wo_file = -1;
+static int dir_fd = -1;
+static int immut_fd = -1;
+static int mnt_file = -1;
+
+static struct tcase {
+ int *src_fd;
+ int *dst_fd;
+ int errno_exp;
+ char *msg;
+} tcases[] = {
+ {&invalid_fd, &rw_file, EBADF, "invalid source"},
+ {&rw_file, &invalid_fd, EBADF, "invalid destination"},
+ {&rw_file, &ro_file, EBADF, "read-only destination"},
+ {&wo_file, &rw_file, EBADF, "write-only source"},
+ {&rw_file, &dir_fd, EISDIR, "source is a directory"},
+ {&dir_fd, &rw_file, EISDIR, "destination is a directory"},
+ {&rw_file, &immut_fd, EPERM, "destination is immutable"},
+ {&rw_file, &mnt_file, EXDEV, "destination is on a different mount"},
+ {&mnt_file, &rw_file, EXDEV, "source is on a different mount"},
+};
+
+static void run(unsigned int n)
+{
+ struct tcase *tc = &tcases[n];
+
+ TST_EXP_FAIL(ioctl(*tc->dst_fd, FICLONE, *tc->src_fd),
+ tc->errno_exp,
+ "%s", tc->msg);
+
+ clone_range->src_fd = *tc->src_fd;
+
+ TST_EXP_FAIL(ioctl(*tc->dst_fd, FICLONERANGE, clone_range),
+ tc->errno_exp,
+ "%s", tc->msg);
+}
+
+static void setup(void)
+{
+ int attr;
+ struct stat sb;
+
+ rw_file = SAFE_OPEN("ok_only", O_CREAT | O_RDWR, 0640);
+ ro_file = SAFE_OPEN("rd_only", O_CREAT | O_RDONLY, 0640);
+ wo_file = SAFE_OPEN("rw_only", O_CREAT | O_WRONLY, 0640);
+
+ if (access("mydir", F_OK) == -1)
+ SAFE_MKDIR("mydir", 0640);
+
+ dir_fd = SAFE_OPEN("mydir", O_DIRECTORY, 0640);
+
+ attr = FS_IMMUTABLE_FL;
+ immut_fd = SAFE_OPEN("immutable", O_CREAT | O_RDWR, 0640);
+ SAFE_IOCTL(immut_fd, FS_IOC_SETFLAGS, &attr);
+
+ mnt_file = SAFE_OPEN(MNTPOINT"/file", O_CREAT | O_RDWR, 0640);
+
+ SAFE_STAT(MNTPOINT, &sb);
+
+ clone_range->src_offset = 0;
+ clone_range->src_length = sb.st_blksize;
+ clone_range->dest_offset = 0;
+}
+
+static void cleanup(void)
+{
+ int attr;
+
+ SAFE_IOCTL(immut_fd, FS_IOC_GETFLAGS, &attr);
+ attr &= ~FS_IMMUTABLE_FL;
+ SAFE_IOCTL(immut_fd, FS_IOC_SETFLAGS, &attr);
+ SAFE_CLOSE(immut_fd);
+
+ SAFE_CLOSE(rw_file);
+ SAFE_CLOSE(ro_file);
+ SAFE_CLOSE(wo_file);
+ SAFE_CLOSE(dir_fd);
+ SAFE_CLOSE(mnt_file);
+}
+
+static struct tst_test test = {
+ .test = run,
+ .tcnt = ARRAY_SIZE(tcases),
+ .setup = setup,
+ .cleanup = cleanup,
+ .min_kver = "4.5",
+ .needs_root = 1,
+ .mount_device = 1,
+ .mntpoint = MNTPOINT,
+ .filesystems = (struct tst_fs []) {
+ {.type = "btrfs"},
+ {
+ .type = "xfs",
+ .mkfs_opts = (const char *const []) {"-m", "reflink=1", NULL},
+ },
+ {}
+ },
+ .bufs = (struct tst_buffers []) {
+ {&clone_range, .size = sizeof(struct file_clone_range)},
+ {},
+ }
+};

--
2.43.0