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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:17:27 +0000 |
commit | f215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch) | |
tree | 6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/Main/src-server/darwin/HostDnsServiceDarwin.cpp | |
parent | Initial commit. (diff) | |
download | virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip |
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/Main/src-server/darwin/HostDnsServiceDarwin.cpp')
-rw-r--r-- | src/VBox/Main/src-server/darwin/HostDnsServiceDarwin.cpp | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/src/VBox/Main/src-server/darwin/HostDnsServiceDarwin.cpp b/src/VBox/Main/src-server/darwin/HostDnsServiceDarwin.cpp new file mode 100644 index 00000000..0d0b0d5c --- /dev/null +++ b/src/VBox/Main/src-server/darwin/HostDnsServiceDarwin.cpp @@ -0,0 +1,281 @@ +/* $Id: HostDnsServiceDarwin.cpp $ */ +/** @file + * Darwin specific DNS information fetching. + */ + +/* + * Copyright (C) 2004-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * 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, in version 3 of the + * License. + * + * 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; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +#include <VBox/com/string.h> +#include <VBox/com/ptr.h> + + +#include <iprt/asm.h> +#include <iprt/errcore.h> +#include <iprt/thread.h> +#include <iprt/semaphore.h> + +#include <CoreFoundation/CoreFoundation.h> +#include <SystemConfiguration/SCDynamicStore.h> + +#include <iprt/sanitized/string> +#include <vector> +#include "../HostDnsService.h" + + +struct HostDnsServiceDarwin::Data +{ + Data() + : m_fStop(false) { } + + SCDynamicStoreRef m_store; + CFRunLoopSourceRef m_DnsWatcher; + CFRunLoopRef m_RunLoopRef; + CFRunLoopSourceRef m_SourceStop; + volatile bool m_fStop; + RTSEMEVENT m_evtStop; + static void performShutdownCallback(void *); +}; + + +static const CFStringRef kStateNetworkGlobalDNSKey = CFSTR("State:/Network/Global/DNS"); + + +HostDnsServiceDarwin::HostDnsServiceDarwin() + : HostDnsServiceBase(true /* fThreaded */) + , m(NULL) +{ + m = new HostDnsServiceDarwin::Data(); +} + +HostDnsServiceDarwin::~HostDnsServiceDarwin() +{ + if (m != NULL) + delete m; +} + +HRESULT HostDnsServiceDarwin::init(HostDnsMonitorProxy *pProxy) +{ + SCDynamicStoreContext ctx; + RT_ZERO(ctx); + + ctx.info = this; + + m->m_store = SCDynamicStoreCreate(NULL, CFSTR("org.virtualbox.VBoxSVC.HostDNS"), + (SCDynamicStoreCallBack)HostDnsServiceDarwin::hostDnsServiceStoreCallback, + &ctx); + AssertReturn(m->m_store, E_FAIL); + + m->m_DnsWatcher = SCDynamicStoreCreateRunLoopSource(NULL, m->m_store, 0); + if (!m->m_DnsWatcher) + return E_OUTOFMEMORY; + + int vrc = RTSemEventCreate(&m->m_evtStop); + AssertRCReturn(vrc, E_FAIL); + + CFRunLoopSourceContext sctx; + RT_ZERO(sctx); + sctx.info = this; + sctx.perform = HostDnsServiceDarwin::Data::performShutdownCallback; + + m->m_SourceStop = CFRunLoopSourceCreate(kCFAllocatorDefault, 0, &sctx); + AssertReturn(m->m_SourceStop, E_FAIL); + + HRESULT hrc = HostDnsServiceBase::init(pProxy); + return hrc; +} + +void HostDnsServiceDarwin::uninit(void) +{ + HostDnsServiceBase::uninit(); + + CFRelease(m->m_SourceStop); + CFRelease(m->m_RunLoopRef); + CFRelease(m->m_DnsWatcher); + CFRelease(m->m_store); + + RTSemEventDestroy(m->m_evtStop); +} + +int HostDnsServiceDarwin::monitorThreadShutdown(RTMSINTERVAL uTimeoutMs) +{ + RTCLock grab(m_LockMtx); + if (!m->m_fStop) + { + ASMAtomicXchgBool(&m->m_fStop, true); + CFRunLoopSourceSignal(m->m_SourceStop); + CFRunLoopStop(m->m_RunLoopRef); + + RTSemEventWait(m->m_evtStop, uTimeoutMs); + } + + return VINF_SUCCESS; +} + +int HostDnsServiceDarwin::monitorThreadProc(void) +{ + m->m_RunLoopRef = CFRunLoopGetCurrent(); + AssertReturn(m->m_RunLoopRef, VERR_INTERNAL_ERROR); + + CFRetain(m->m_RunLoopRef); + + CFRunLoopAddSource(m->m_RunLoopRef, m->m_SourceStop, kCFRunLoopCommonModes); + + CFArrayRef watchingArrayRef = CFArrayCreate(NULL, + (const void **)&kStateNetworkGlobalDNSKey, + 1, &kCFTypeArrayCallBacks); + if (!watchingArrayRef) + { + CFRelease(m->m_DnsWatcher); + return VERR_NO_MEMORY; + } + + if (SCDynamicStoreSetNotificationKeys(m->m_store, watchingArrayRef, NULL)) + CFRunLoopAddSource(CFRunLoopGetCurrent(), m->m_DnsWatcher, kCFRunLoopCommonModes); + + CFRelease(watchingArrayRef); + + onMonitorThreadInitDone(); + + /* Trigger initial update. */ + int vrc = updateInfo(); + AssertRC(vrc); /* Not fatal in release builds. */ /** @todo r=bird: The function always returns VINF_SUCCESS. */ + + while (!ASMAtomicReadBool(&m->m_fStop)) + { + CFRunLoopRun(); + } + + CFRunLoopRemoveSource(m->m_RunLoopRef, m->m_SourceStop, kCFRunLoopCommonModes); + + /* We're notifying stopper thread. */ + RTSemEventSignal(m->m_evtStop); + + return VINF_SUCCESS; +} + +int HostDnsServiceDarwin::updateInfo(void) +{ + CFPropertyListRef propertyRef = SCDynamicStoreCopyValue(m->m_store, kStateNetworkGlobalDNSKey); + /** + * # scutil + * \> get State:/Network/Global/DNS + * \> d.show + * \<dictionary\> { + * DomainName : vvl-domain + * SearchDomains : \<array\> { + * 0 : vvl-domain + * 1 : de.vvl-domain.com + * } + * ServerAddresses : \<array\> { + * 0 : 192.168.1.4 + * 1 : 192.168.1.1 + * 2 : 8.8.4.4 + * } + * } + */ + + if (!propertyRef) + return VINF_SUCCESS; + + HostDnsInformation info; + CFStringRef domainNameRef = (CFStringRef)CFDictionaryGetValue(static_cast<CFDictionaryRef>(propertyRef), CFSTR("DomainName")); + if (domainNameRef) + { + const char *pszDomainName = CFStringGetCStringPtr(domainNameRef, CFStringGetSystemEncoding()); + if (pszDomainName) + info.domain = pszDomainName; + } + + CFArrayRef serverArrayRef = (CFArrayRef)CFDictionaryGetValue(static_cast<CFDictionaryRef>(propertyRef), + CFSTR("ServerAddresses")); + if (serverArrayRef) + { + CFIndex const cItems = CFArrayGetCount(serverArrayRef); + for (CFIndex i = 0; i < cItems; ++i) + { + CFStringRef serverAddressRef = (CFStringRef)CFArrayGetValueAtIndex(serverArrayRef, i); + if (!serverArrayRef) + continue; + + /** @todo r=bird: This code is messed up as CFStringGetCStringPtr is documented + * to return NULL even if the string is valid. Furthermore, we must have + * UTF-8 - some joker might decide latin-1 is better here for all we know + * and we'll end up with evil invalid UTF-8 sequences. */ + const char *pszServerAddress = CFStringGetCStringPtr(serverAddressRef, CFStringGetSystemEncoding()); + if (!pszServerAddress) + continue; + + /** @todo r=bird: Why on earth are we using std::string and not Utf8Str? */ + info.servers.push_back(std::string(pszServerAddress)); + } + } + + CFArrayRef searchArrayRef = (CFArrayRef)CFDictionaryGetValue(static_cast<CFDictionaryRef>(propertyRef), + CFSTR("SearchDomains")); + if (searchArrayRef) + { + CFIndex const cItems = CFArrayGetCount(searchArrayRef); + for (CFIndex i = 0; i < cItems; ++i) + { + CFStringRef searchStringRef = (CFStringRef)CFArrayGetValueAtIndex(searchArrayRef, i); + if (!searchArrayRef) + continue; + + /** @todo r=bird: This code is messed up as CFStringGetCStringPtr is documented + * to return NULL even if the string is valid. Furthermore, we must have + * UTF-8 - some joker might decide latin-1 is better here for all we know + * and we'll end up with evil invalid UTF-8 sequences. */ + const char *pszSearchString = CFStringGetCStringPtr(searchStringRef, CFStringGetSystemEncoding()); + if (!pszSearchString) + continue; + + /** @todo r=bird: Why on earth are we using std::string and not Utf8Str? */ + info.searchList.push_back(std::string(pszSearchString)); + } + } + + CFRelease(propertyRef); + + setInfo(info); + + return VINF_SUCCESS; +} + +void HostDnsServiceDarwin::hostDnsServiceStoreCallback(void *, void *, void *pInfo) +{ + HostDnsServiceDarwin *pThis = (HostDnsServiceDarwin *)pInfo; + AssertPtrReturnVoid(pThis); + + RTCLock grab(pThis->m_LockMtx); + pThis->updateInfo(); +} + +void HostDnsServiceDarwin::Data::performShutdownCallback(void *pInfo) +{ + HostDnsServiceDarwin *pThis = (HostDnsServiceDarwin *)pInfo; + AssertPtrReturnVoid(pThis); + + AssertPtrReturnVoid(pThis->m); + ASMAtomicXchgBool(&pThis->m->m_fStop, true); +} + |