Signed-off-by: Yuan Sun <[email protected]>
---
runtest/containers | 1 +
testcases/kernel/containers/.gitignore | 1 +
testcases/kernel/containers/userns/userns02.c | 94 +++++++++++++++++++++++++++
3 files changed, 96 insertions(+)
create mode 100644 testcases/kernel/containers/userns/userns02.c
diff --git a/runtest/containers b/runtest/containers
index ca10372..bb1beb6 100644
--- a/runtest/containers
+++ b/runtest/containers
@@ -69,3 +69,4 @@ mountns03 mountns03
mountns04 mountns04
userns01 userns01
+userns02 userns02
diff --git a/testcases/kernel/containers/.gitignore
b/testcases/kernel/containers/.gitignore
index 4478b53..e3c92c9 100644
--- a/testcases/kernel/containers/.gitignore
+++ b/testcases/kernel/containers/.gitignore
@@ -4,3 +4,4 @@ mountns/mountns02
mountns/mountns03
mountns/mountns04
userns/userns01
+userns/userns02
diff --git a/testcases/kernel/containers/userns/userns02.c
b/testcases/kernel/containers/userns/userns02.c
new file mode 100644
index 0000000..078439e
--- /dev/null
+++ b/testcases/kernel/containers/userns/userns02.c
@@ -0,0 +1,94 @@
+/*
+* Copyright (c) Huawei Technologies Co., Ltd., 2015
+* 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.
+*
+*
+* Verify that:
+* The user ID and group ID, which are inside a container, can be modified by
+* its parent process.
+*/
+
+#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_namespace2";
+int TST_TOTAL = 1;
+
+char fullpath[BUFSIZ];
+pid_t childpid;
+int parentuid;
+int parentgid;
+char cmd[BUFSIZ];
+FILE *fp;
+/*
+ * child_fn1() - Inside a new user namespace
+ */
+static int child_fn1(void *arg)
+{
+ int exit_val;
+ int uid, gid;
+
+ sleep(1);
+ uid = geteuid();
+ gid = getegid();
+
+ tst_resm(TINFO, "USERNS test is running in a new user namespace.");
+ if (uid == 100 && gid == 100) {
+ tst_resm(TINFO, "Got expected uid and gid.");
+ exit_val = 0;
+ } else {
+ tst_brkm(TFAIL | TTERRNO, NULL, "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();
+
+ childpid = ltp_clone_quick(CLONE_NEWUSER | SIGCHLD, child_fn1, NULL);
+
+ if (childpid < 0)
+ tst_brkm(TFAIL | TTERRNO, NULL, "clone failed");
+
+ parentuid = geteuid();
+ sprintf(cmd, "echo 100 %d 1 > /proc/%d/uid_map", parentuid, childpid);
+ system(cmd);
+ parentgid = getegid();
+ sprintf(cmd, "echo 100 %d 1 > /proc/%d/gid_map", parentgid, childpid);
+ system(cmd);
+
+ if (waitpid(childpid, &status, 0) < 0)
+ tst_resm(TWARN, "parent: waitpid failed.");
+
+ tst_resm(TPASS, "the uid and the gid are right inside the container");
+ tst_exit();
+}
+
--
1.9.1
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