Signed-off-by: Yuan Sun <sunyu...@huawei.com>
---
testcases/kernel/containers/userns/Makefile | 28 ++++++
testcases/kernel/containers/userns/README | 22 +++++
testcases/kernel/containers/userns/userns01.c | 104 +++++++++++++++++++++
testcases/kernel/containers/userns/userns_helper.h | 37 ++++++++
4 files changed, 191 insertions(+)
create mode 100644 testcases/kernel/containers/userns/Makefile
create mode 100644 testcases/kernel/containers/userns/README
create mode 100644 testcases/kernel/containers/userns/userns01.c
create mode 100644 testcases/kernel/containers/userns/userns_helper.h
diff --git a/testcases/kernel/containers/userns/Makefile
b/testcases/kernel/containers/userns/Makefile
new file mode 100644
index 0000000..6dfe694
--- /dev/null
+++ b/testcases/kernel/containers/userns/Makefile
@@ -0,0 +1,28 @@
+###############################################################################
+# ##
+# Copyright (c) International Business Machines Corp., 2007 ##
+# ##
+# 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, write to the Free Software ##
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
##
+# ##
+###############################################################################
+
+top_srcdir ?= ../../../..
+
+include $(top_srcdir)/include/mk/testcases.mk
+include $(abs_srcdir)/../Makefile.inc
+
+LDLIBS := -lpthread -lrt -lclone -lltp
+
+include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/containers/userns/README
b/testcases/kernel/containers/userns/README
new file mode 100644
index 0000000..8011cff
--- /dev/null
+++ b/testcases/kernel/containers/userns/README
@@ -0,0 +1,22 @@
+################################################################################
+##
##
+## Copyright (c) International Business Machines Corp., 2007
##
+##
##
+## 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, write to the Free Software
##
+## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA ##
+##
##
+################################################################################
+
+USERNS testcases Overview:
+User namespaces allow per-namespace mappings of user and group IDs. This means
that a process's user and group IDs inside a user namespace can be different
from its IDs outside of the namespace.
diff --git a/testcases/kernel/containers/userns/userns01.c
b/testcases/kernel/containers/userns/userns01.c
new file mode 100644
index 0000000..ca516e7
--- /dev/null
+++ b/testcases/kernel/containers/userns/userns01.c
@@ -0,0 +1,104 @@
+/*
+* Copyright (c) International Business Machines Corp., 2007
+* 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, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*
+***************************************************************************
+
+* File: userns01.c
+*
+* Description:
+* The userns01.c testcase builds into the ltp framework to verify
+* the basic functionality of USER Namespace.
+*
+* Verify that:
+* If a user ID has no mapping inside the namespace, user ID and group
+* ID will be the value defined in the file /proc/sys/kernel/overflowuid, 65534.
+*
+* Total Tests:
+*
+* Test Name: userns01
+*
+* History:
+*
+* FLAG DATE NAME DESCRIPTION
+* 16/05/15 Yuan Sun <sunyu...@huawei.com> Created this test
+*
+*******************************************************************************************/
+#define _GNU_SOURCE
+#include <sys/wait.h>
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include "test.h"
+#include "libclone.h"
+#include "userns_helper.h"
+
+char *TCID = "user_namespace1";
+int TST_TOTAL = 1;
+
+#define OVERFLOWUID 65534
+
+/*
+ * child_fn1() - Inside a new user namespace
+ */
+static int child_fn1(void *arg)
+{
+ int exit_val;
+ int uid, gid;
+ uid = geteuid();
+ gid = getegid();
+
+ tst_resm(TINFO, "USERNS test is running in a new user namespace.");
+ if (uid == OVERFLOWUID && gid == OVERFLOWUID) {
+ printf("Got expected cpid and ppid\n");
+ exit_val = 0;
+ } else {
+ printf("Got unexpected result of uid=%d gid=%d\n", uid, gid);
+ exit_val = 1;
+ }
+
+ return exit_val;
+}
+
+static void setup(void)
+{
+ check_newuser();
+}
+
+int main(int argc, char *argv[])
+{
+ int status;
+ tst_parse_opts(argc, argv, NULL, NULL);
+ setup();
+
+ TEST(do_clone_unshare_test(T_CLONE, CLONE_NEWUSER, child_fn1, NULL));
+
+ if (TEST_RETURN == -1) {
+ tst_brkm(TFAIL | TTERRNO, NULL, "clone failed");
+ } else if ((wait(&status)) == -1) {
+ tst_brkm(TWARN | TERRNO, NULL, "wait failed");
+ }
+
+ if (WIFEXITED(status) && WEXITSTATUS(status) != 0)
+ tst_resm(TFAIL, "child exited abnormally");
+ else if (WIFSIGNALED(status)) {
+ tst_resm(TFAIL, "child was killed with signal = %d",
+ WTERMSIG(status));
+ }
+
+ tst_exit();
+}
+
diff --git a/testcases/kernel/containers/userns/userns_helper.h
b/testcases/kernel/containers/userns/userns_helper.h
new file mode 100644
index 0000000..36e75ad
--- /dev/null
+++ b/testcases/kernel/containers/userns/userns_helper.h
@@ -0,0 +1,37 @@
+/*
+* Copyright (c) International Business Machines Corp., 2007
+* 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.
+*/
+
+#include "../libclone/libclone.h"
+#include "test.h"
+#include "safe_macros.h"
+
+static int dummy_child(void *v)
+{
+ (void) v;
+ return 0;
+}
+
+static int check_newuser(void)
+{
+ int pid, status;
+
+ if (tst_kvercmp(3, 8, 0) < 0)
+ tst_brkm(TCONF, NULL, "CLONE_NEWUSER not supported");
+
+ pid = do_clone_unshare_test(T_CLONE, CLONE_NEWUSER, dummy_child, NULL);
+ if (pid == -1)
+ tst_brkm(TCONF | TERRNO, NULL, "CLONE_NEWUSER not supported");
+ SAFE_WAIT(NULL, &status);
+
+ return 0;
+}
--
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