55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2019 Federico Bonfiglio <fedebonfi95@gmail.com>
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* Copyright (c) Linux Test Project, 2019-2022
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*/
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/*\
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* [Description]
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*
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* Test ioctl_ns with NS_GET_USERNS request.
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*
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* Owning user namespace of process calling ioctl is out of scope,
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* which should make the call fail with EPERM.
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*/
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#define _GNU_SOURCE
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#include <errno.h>
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#include "tst_test.h"
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#include "lapi/ioctl_ns.h"
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static void setup(void)
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{
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int exists = access("/proc/self/ns/user", F_OK);
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if (exists < 0)
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tst_res(TCONF, "namespace not available");
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}
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static void run(void)
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{
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int fd, parent_fd;
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fd = SAFE_OPEN("/proc/self/ns/user", O_RDONLY);
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parent_fd = ioctl(fd, NS_GET_USERNS);
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if (parent_fd == -1) {
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if (errno == ENOTTY)
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tst_brk(TCONF, "ioctl(NS_GET_USERNS) not implemented");
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if (errno == EPERM)
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tst_res(TPASS, "NS_GET_USERNS fails with EPERM");
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else
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tst_res(TFAIL | TERRNO, "unexpected ioctl error");
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} else {
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tst_res(TFAIL, "call to ioctl succeded");
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}
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SAFE_CLOSE(fd);
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}
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static struct tst_test test = {
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.test_all = run,
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.min_kver = "4.9",
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.setup = setup
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};
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