From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-2.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1Z55Nn-0004EZ-Rt for ltp-list@lists.sourceforge.net; Wed, 17 Jun 2015 04:55:27 +0000 Received: from szxga01-in.huawei.com ([58.251.152.64]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1Z55Nk-0001aU-Fc for ltp-list@lists.sourceforge.net; Wed, 17 Jun 2015 04:55:27 +0000 Message-ID: <5580FDA5.80809@huawei.com> Date: Wed, 17 Jun 2015 12:55:01 +0800 From: Yuan Sun MIME-Version: 1.0 References: <1434545793-3731-1-git-send-email-sunyuan3@huawei.com> In-Reply-To: <1434545793-3731-1-git-send-email-sunyuan3@huawei.com> Subject: Re: [LTP] [PATCH V3] containers: new testcase userns04 List-Id: Linux Test Project General Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-list-bounces@lists.sourceforge.net To: jstancek@redhat.com Cc: ltp-list@lists.sourceforge.net On 2015/6/17 20:56, Yuan Sun wrote: > If a namespace isn't aother namespace's ancestor, the first namespace > does not have the CAP_SYS_ADMIN capability in the second namespace > and the setns() call fails. > > Signed-off-by: Yuan Sun > --- > testcases/kernel/containers/userns/userns04.c | 134 ++++++++++++++++++++++++++ > 1 file changed, 134 insertions(+) > create mode 100644 testcases/kernel/containers/userns/userns04.c > > diff --git a/testcases/kernel/containers/userns/userns04.c b/testcases/kernel/containers/userns/userns04.c > new file mode 100644 > index 0000000..c1690c9 > --- /dev/null > +++ b/testcases/kernel/containers/userns/userns04.c > @@ -0,0 +1,134 @@ > +/* > + * 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. > + */ > + > +/* > + * Verify that: > + * If a namespace isn't another namespace's ancestor, the first namespace > + * does not have the CAP_SYS_ADMIN capability in the second namespace > + * and the setns() call fails. > + */ > + > +#define _GNU_SOURCE > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include "test.h" > +#include "userns_helper.h" > + > +char *TCID = "user_namespace4"; > +int TST_TOTAL = 1; > + > +static void setup(void) > +{ > + check_newuser(); > + tst_tmpdir(); > + TST_CHECKPOINT_INIT(NULL); > +} > + > +static void cleanup(void) > +{ > + tst_rmdir(); > +} > + > +/* > + * child_fn1() - Inside a new user namespace > + */ > +static int child_fn1(void) > +{ > + TST_SAFE_CHECKPOINT_WAIT(cleanup, 0); It is my fault. I removed cleanup from child_fn1 and forgot to rm this cleanup. > + return 0; > +} > + > +static int child_fn2(int *arg) > +{ > + int exit_val; > + > + if (setns(*arg, CLONE_NEWUSER) == -1) { > + printf("child2 setns() failure is expected\n"); > + exit_val = 0; > + } else { > + printf("chile2 setns() success isn't expected\n"); > + exit_val = 1; > + } > + > + TST_SAFE_CHECKPOINT_WAIT(NULL, 1); > + return exit_val; > +} > + > +int main(int argc, char *argv[]) > +{ > + int cpid1status, cpid2status; > + int cpid1, cpid2; > + char path[BUFSIZ]; > + int fd; > + > + tst_parse_opts(argc, argv, NULL, NULL); > + setup(); > +/* > +TEST_LOOPING isn't used because the parent pid can't reset to the > +previous namespace after it joins another namespace by setns. > +*/ > + tst_count = 0; > + cpid1 = ltp_clone_quick(CLONE_NEWUSER | SIGCHLD, > + (void *)child_fn1, NULL); > + > + if (cpid1 < 0) > + tst_brkm(TFAIL | TERRNO, cleanup, "clone failed"); > + > + sprintf(path, "/proc/%d/ns/user", cpid1); > + fd = SAFE_OPEN(cleanup, path, O_RDONLY, 0644); > + > + cpid2 = ltp_clone_quick(CLONE_NEWUSER | SIGCHLD, > + (void *)child_fn2, &fd); > + > + if (cpid2 < 0) > + tst_brkm(TFAIL | TERRNO, cleanup, "clone failed"); > + > + if (setns(fd, CLONE_NEWUSER) == -1) > + tst_brkm(TFAIL, cleanup, "parent pid setns failure"); > + else > + tst_resm(TINFO, "parent pid setns success"); > + > + TST_SAFE_CHECKPOINT_WAKE(cleanup, 0); > + TST_SAFE_CHECKPOINT_WAKE(cleanup, 1); > + > + if ((waitpid(cpid1, &cpid1status, 0) < 0) || > + (waitpid(cpid2, &cpid2status, 0) < 0)) > + tst_brkm(TBROK | TERRNO, cleanup, > + "parent: waitpid failed."); > + > + if (WIFSIGNALED(cpid1status)) { > + tst_resm(TFAIL, "child1 was killed with signal = %d", > + WTERMSIG(cpid1status)); > + } else if (WIFEXITED(cpid1status) && > + WEXITSTATUS(cpid1status) != 0) { > + tst_resm(TFAIL, "child1 exited abnormally"); > + } > + > + if (WIFSIGNALED(cpid2status)) { > + tst_resm(TFAIL, "child2 was killed with signal = %d", > + WTERMSIG(cpid2status)); > + } else if (WIFEXITED(cpid2status) && > + WEXITSTATUS(cpid2status) != 0) { > + tst_resm(TFAIL, "child2 exited abnormally"); > + } else > + tst_resm(TPASS, "The setns function works well."); > + > + cleanup(); > + tst_exit(); > +} > + ------------------------------------------------------------------------------ _______________________________________________ Ltp-list mailing list Ltp-list@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ltp-list