61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) Linux Test Project, 2014-2020
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*/
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#include <stdio.h>
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#include "lapi/namespaces_constants.h"
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#define NS_MAX 5
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static int ns_types[NS_MAX];
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static int ns_fds[NS_MAX];
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static int ns_total;
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static int get_ns_fd(int pid, const char *ns)
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{
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char tmp[PATH_MAX];
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struct stat st;
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int fd = -1;
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sprintf(tmp, "/proc/%d/ns/%s", pid, ns);
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if (stat(tmp, &st) == 0) {
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fd = SAFE_OPEN(tmp, O_RDONLY);
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} else {
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if (errno != ENOENT)
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tst_brk(TBROK|TERRNO, "failed to stat %s", tmp);
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}
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return fd;
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}
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static void init_ns_type(int clone_type, const char *proc_name)
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{
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int fd;
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fd = get_ns_fd(getpid(), proc_name);
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if (fd != -1) {
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ns_types[ns_total] = clone_type;
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ns_fds[ns_total] = fd;
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tst_res(TINFO, "ns_name=%s, ns_fds[%d]=%d, ns_types[%d]=0x%x",
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proc_name, ns_total, fd, ns_total, clone_type);
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ns_total++;
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}
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}
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static void init_available_ns(void)
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{
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init_ns_type(CLONE_NEWIPC, "ipc");
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init_ns_type(CLONE_NEWNS, "mnt");
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init_ns_type(CLONE_NEWNET, "net");
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init_ns_type(CLONE_NEWPID, "pid");
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init_ns_type(CLONE_NEWUTS, "uts");
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}
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static void close_ns_fds(void)
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{
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int i;
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for (i = 0; i < ns_total; i++)
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if (ns_fds[i] != -1)
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SAFE_CLOSE(ns_fds[i]);
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}
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