setxattr(2) to immutable and append-only files should get EPERM
There are 2 test cases:
1. Set attribute to a immutable file, setxattr(2) should return -1
and set errno to EPERM
2. Set attribute to a append-only file, setxattr(2) should return
-1 and set errno to EPERM
Signed-off-by: Eryu Guan <[email protected]>
---
runtest/syscalls | 1 +
testcases/kernel/syscalls/setxattr/setxattr03.c | 222 +++++++++++++++++++++++
2 files changed, 223 insertions(+), 0 deletions(-)
create mode 100644 testcases/kernel/syscalls/setxattr/setxattr03.c
diff --git a/runtest/syscalls b/runtest/syscalls
index d786746..37dfc7e 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -1027,6 +1027,7 @@ setuid04_16 setuid04_16
setxattr01 setxattr01
setxattr02 setxattr02
+setxattr03 setxattr03
shmat01 shmat01
shmat02 shmat02
diff --git a/testcases/kernel/syscalls/setxattr/setxattr03.c b/testcases/kernel/syscalls/setxattr/setxattr03.c
new file mode 100644
index 0000000..223bff7
--- /dev/null
+++ b/testcases/kernel/syscalls/setxattr/setxattr03.c
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it
+ * is free of the rightful claim of any third person regarding
+ * infringement or the like. Any license provided herein, whether
+ * implied or otherwise, applies only to this software file. Patent
+ * licenses, if any, provided herein do not apply to combinations of
+ * this program with other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+/*
+ * setxattr(2) to immutable and append-only files should get EPERM
+ *
+ * There are 2 test cases:
+ * 1. Set attribute to a immutable file, setxattr(2) should return -1
+ * and set errno to EPERM
+ * 2. Set attribute to a append-only file, setxattr(2) should return
+ * -1 and set errno to EPERM
+ */
+
+#include "config.h"
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_ATTR_XATTR_H
+#include <attr/xattr.h>
+#endif
+#include <linux/fs.h>
+
+#include "test.h"
+#include "usctest.h"
+
+char *TCID = "setxattr03";
+
+#ifdef HAVE_ATTR_XATTR_H
+#define XATTR_TEST_KEY "user.testkey"
+#define XATTR_TEST_VALUE "this is a test value"
+#define XATTR_TEST_VALUE_SIZE 20
+
+#define IMMU_FILE "setxattr03immutable"
+#define APPEND_FILE "setxattr03appendonly"
+
+#define set_immutable_on(fd) fsetflag(fd, 1, 1)
+#define set_immutable_off(fd) fsetflag(fd, 0, 1)
+#define set_append_on(fd) fsetflag(fd, 1, 0)
+#define set_append_off(fd) fsetflag(fd, 0, 0)
+
+struct test_case {
+ char *desc;
+ char *fname;
+ char *key;
+ char *value;
+ size_t size;
+ int flags;
+ int exp_err;
+};
+static struct test_case tc[] = {
+ { /* case 00, set attr to immutable file */
+ .desc = "Set attr to immutable file",
+ .fname = IMMU_FILE,
+ .key = XATTR_TEST_KEY,
+ .value = XATTR_TEST_VALUE,
+ .size = XATTR_TEST_VALUE_SIZE,
+ .flags = XATTR_CREATE,
+ .exp_err = EPERM,
+ },
+ { /* case 01, set attr to append-only file */
+ .desc = "Set attr to append-only file",
+ .fname = APPEND_FILE,
+ .key = XATTR_TEST_KEY,
+ .value = XATTR_TEST_VALUE,
+ .size = XATTR_TEST_VALUE_SIZE,
+ .flags = XATTR_CREATE,
+ .exp_err = EPERM,
+ },
+};
+
+static void setup(void);
+static void cleanup(void);
+
+static int immu_fd;
+static int append_fd;
+
+int TST_TOTAL = sizeof(tc) / sizeof(tc[0]);
+
+int main(int argc, char *argv[])
+{
+ int lc;
+ int i;
+ char *msg;
+
+ msg = parse_opts(argc, argv, NULL, NULL);
+ if (msg != NULL)
+ tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg);
+
+ setup();
+
+ for (lc = 0; TEST_LOOPING(lc); lc++) {
+ Tst_count = 0;
+
+ for (i = 0; i < TST_TOTAL; i++) {
+ TEST(setxattr(tc[i].fname, tc[i].key, tc[i].value,
+ tc[i].size, tc[i].flags));
+
+ if (TEST_ERRNO == tc[i].exp_err) {
+ tst_resm(TPASS | TTERRNO, tc[i].desc);
+ } else {
+ tst_resm(TFAIL | TTERRNO, "%s - expected errno"
+ " %d - Got", tc[i].desc, tc[i].exp_err);
+ }
+ }
+ }
+
+ cleanup();
+ tst_exit();
+}
+
+static int fsetflag(int fd, int on, int immutable)
+{
+ int fsflags = 0;
+ int fsfl;
+
+ if (ioctl(fd, FS_IOC_GETFLAGS, &fsflags) < 0)
+ return 1;
+
+ if (immutable)
+ fsfl = FS_IMMUTABLE_FL;
+ else
+ fsfl = FS_APPEND_FL;
+
+ if (on)
+ fsflags |= fsfl;
+ else
+ fsflags &= ~fsfl;
+
+ if (ioctl(fd, FS_IOC_SETFLAGS, &fsflags) < 0)
+ return 1;
+
+ return 0;
+}
+
+static void setup(void)
+{
+ int fd;
+
+ tst_require_root(NULL);
+
+ tst_tmpdir();
+
+ /* Test for xattr support */
+ fd = creat("testfile", 0644);
+ if (fd == -1)
+ tst_brkm(TBROK | TERRNO, cleanup, "Create testfile failed");
+ close(fd);
+ if (setxattr("testfile", "user.test", "test", 4, XATTR_CREATE) == -1)
+ if (errno == ENOTSUP)
+ tst_brkm(TCONF, cleanup, "No xattr support in fs or "
+ "mount without user_xattr option");
+ unlink("testfile");
+
+ /* Create test files and set file immutable or append-only */
+ immu_fd = creat(IMMU_FILE, 0644);
+ if (immu_fd == -1)
+ tst_brkm(TBROK | TERRNO, cleanup, "Create test file(%s) failed",
+ IMMU_FILE);
+ if (set_immutable_on(immu_fd))
+ tst_brkm(TBROK | TERRNO, cleanup, "Set %s immutable failed",
+ IMMU_FILE);
+
+ append_fd = creat(APPEND_FILE, 0644);
+ if (append_fd == -1)
+ tst_brkm(TBROK | TERRNO, cleanup, "Create test file(%s) failed",
+ APPEND_FILE);
+ if (set_append_on(append_fd))
+ tst_brkm(TBROK | TERRNO, cleanup, "Set %s append-only failed",
+ APPEND_FILE);
+
+ TEST_PAUSE;
+}
+
+static void cleanup(void)
+{
+ if (set_immutable_off(immu_fd))
+ tst_resm(TWARN | TERRNO, "Unset %s immutable failed",
+ IMMU_FILE);
+ if (set_append_off(append_fd))
+ tst_resm(TWARN | TERRNO, "Unset %s append-only failed",
+ APPEND_FILE);
+ close(immu_fd);
+ close(append_fd);
+
+ TEST_CLEANUP;
+ tst_rmdir();
+}
+#else /* HAVE_ATTR_XATTR_H */
+int main(int argc, char *argv[])
+{
+ tst_brkm(TCONF, NULL, "<attr/xattr.h> does not exist.");
+}
+#endif /* HAVE_ATTR_XATTR_H */
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