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7ebc4f2a4c
Host tcp4/tcp6 ports is a global resource thus we need to make port accounting also global or we have issues described in [1] when port allocator ranges of different instances are overlapped (which is by default for qemu for example). Let's have only one global port allocator object that take care of the entire ports range (0 - 65535) and introduce port range object for clients to specify desired auto allocation band. [1] https://www.redhat.com/archives/libvir-list/2017-December/msg00600.html Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
197 lines
4.8 KiB
C
197 lines
4.8 KiB
C
/*
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* Copyright (C) 2013-2014 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#include <config.h>
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#include <stdlib.h>
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#include "virfile.h"
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#include "testutils.h"
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#if HAVE_DLFCN_H
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# include <dlfcn.h>
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#endif
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#if defined(__linux__) && defined(RTLD_NEXT)
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# include "virutil.h"
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# include "virerror.h"
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# include "viralloc.h"
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# include "virlog.h"
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# include "virportallocator.h"
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# include "virstring.h"
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# define VIR_FROM_THIS VIR_FROM_RPC
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VIR_LOG_INIT("tests.portallocatortest");
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static int testAllocAll(const void *args ATTRIBUTE_UNUSED)
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{
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virPortAllocatorRangePtr ports = virPortAllocatorRangeNew("test", 5900, 5909, 0);
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int ret = -1;
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unsigned short p1 = 0, p2 = 0, p3 = 0, p4 = 0, p5 = 0, p6 = 0, p7 = 0;
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if (!ports)
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return -1;
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if (virPortAllocatorAcquire(ports, &p1) < 0)
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goto cleanup;
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if (p1 != 5901) {
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VIR_TEST_DEBUG("Expected 5901, got %d", p1);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p2) < 0)
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goto cleanup;
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if (p2 != 5902) {
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VIR_TEST_DEBUG("Expected 5902, got %d", p2);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p3) < 0)
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goto cleanup;
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if (p3 != 5903) {
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VIR_TEST_DEBUG("Expected 5903, got %d", p3);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p4) < 0)
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goto cleanup;
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if (p4 != 5907) {
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VIR_TEST_DEBUG("Expected 5907, got %d", p4);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p5) < 0)
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goto cleanup;
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if (p5 != 5908) {
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VIR_TEST_DEBUG("Expected 5908, got %d", p5);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p6) < 0)
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goto cleanup;
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if (p6 != 5909) {
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VIR_TEST_DEBUG("Expected 5909, got %d", p6);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p7) == 0) {
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VIR_TEST_DEBUG("Expected error, got %d", p7);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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virPortAllocatorRelease(ports, p1);
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virPortAllocatorRelease(ports, p2);
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virPortAllocatorRelease(ports, p3);
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virPortAllocatorRelease(ports, p4);
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virPortAllocatorRelease(ports, p5);
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virPortAllocatorRelease(ports, p6);
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virPortAllocatorRelease(ports, p7);
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virPortAllocatorRangeFree(ports);
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return ret;
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}
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static int testAllocReuse(const void *args ATTRIBUTE_UNUSED)
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{
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virPortAllocatorRangePtr ports = virPortAllocatorRangeNew("test", 5900, 5910, 0);
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int ret = -1;
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unsigned short p1 = 0, p2 = 0, p3 = 0, p4 = 0;
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if (!ports)
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return -1;
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if (virPortAllocatorAcquire(ports, &p1) < 0)
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goto cleanup;
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if (p1 != 5901) {
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VIR_TEST_DEBUG("Expected 5901, got %d", p1);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p2) < 0)
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goto cleanup;
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if (p2 != 5902) {
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VIR_TEST_DEBUG("Expected 5902, got %d", p2);
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goto cleanup;
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}
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if (virPortAllocatorAcquire(ports, &p3) < 0)
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goto cleanup;
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if (p3 != 5903) {
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VIR_TEST_DEBUG("Expected 5903, got %d", p3);
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goto cleanup;
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}
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if (virPortAllocatorRelease(ports, p2) < 0)
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goto cleanup;
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if (virPortAllocatorAcquire(ports, &p4) < 0)
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goto cleanup;
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if (p4 != 5902) {
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VIR_TEST_DEBUG("Expected 5902, got %d", p4);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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virPortAllocatorRelease(ports, p1);
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virPortAllocatorRelease(ports, p3);
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virPortAllocatorRelease(ports, p4);
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virPortAllocatorRangeFree(ports);
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return ret;
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}
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static int
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mymain(void)
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{
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int ret = 0;
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if (virTestRun("Test alloc all", testAllocAll, NULL) < 0)
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ret = -1;
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if (virTestRun("Test alloc reuse", testAllocReuse, NULL) < 0)
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ret = -1;
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setenv("LIBVIRT_TEST_IPV4ONLY", "really", 1);
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if (virTestRun("Test IPv4-only alloc all", testAllocAll, NULL) < 0)
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ret = -1;
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if (virTestRun("Test IPv4-only alloc reuse", testAllocReuse, NULL) < 0)
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ret = -1;
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return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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VIR_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/virportallocatormock.so")
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#else /* defined(__linux__) && defined(RTLD_NEXT) */
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int
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main(void)
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{
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return EXIT_AM_SKIP;
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}
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#endif
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