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[net] add fallback to InternetGetConnectedState() when INetworkListManager service dependencies are missing

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* INetworkListManager appears to depend on specific services to be able to work,
  which one can actually disable while still getting full Internet connectivity.
* If that is the case, HRESULT_FROM_WIN32(ERROR_SERVICE_DEPENDENCY_FAIL) will be
  returned, therefore we add a fallback to using InternetGetConnectedState(), which
  does not have such dependencies (but has other limitations per b2492908be)
  when we detect a dependency error.
* Also take this opportunity to switch to using INetworkListManager::get_IsConnectedToInternet().
* Also fix Coverity breakage due to Synopsys having upgraded their toolchain.
* Closes #1801
This commit is contained in:
Pete Batard 2022-02-18 17:18:34 +00:00
parent 209fb18b1c
commit 89db56acbc
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GPG key ID: 38E0CF5E69EDD671
3 changed files with 25 additions and 10 deletions
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4
.github/workflows/coverity.yml vendored
View file

@ -49,7 +49,9 @@ jobs:
msbuild-architecture: x64
- name: Build with Coverity
run: cov-build.exe --dir cov-int msbuild ${{ env.SOLUTION_FILE_PATH }} /m /p:Configuration=${{ env.BUILD_CONFIGURATION }},Platform=${{ env.TARGET_PLATFORM }}
run: |
cov-configure --msvc
cov-build.exe --dir cov-int msbuild ${{ env.SOLUTION_FILE_PATH }} /m /p:Configuration=${{ env.BUILD_CONFIGURATION }},Platform=${{ env.TARGET_PLATFORM }}
- name: Publish Coverity artifacts
uses: actions/upload-artifact@v2

21
src/net.c
View file

@ -57,6 +57,10 @@ static DWORD error_code, fido_len = 0;
static BOOL force_update_check = FALSE;
static const char* request_headers = "Accept-Encoding: gzip, deflate";
#if defined(__MINGW32__)
#define INetworkListManager_get_IsConnectedToInternet INetworkListManager_IsConnectedToInternet
#endif
/*
* FormatMessage does not handle internet errors
* https://docs.microsoft.com/en-us/windows/desktop/wininet/wininet-errors
@ -267,16 +271,18 @@ static HINTERNET GetInternetSession(BOOL bRetry)
int i;
char agent[64];
BOOL decodingSupport = TRUE;
DWORD dwTimeout = NET_SESSION_TIMEOUT, dwProtocolSupport = HTTP_PROTOCOL_FLAG_HTTP2;
VARIANT_BOOL InternetConnection = VARIANT_FALSE;
DWORD dwFlags, dwTimeout = NET_SESSION_TIMEOUT, dwProtocolSupport = HTTP_PROTOCOL_FLAG_HTTP2;
HINTERNET hSession = NULL;
HRESULT hr = S_FALSE;
INetworkListManager* pNetworkListManager;
NLM_CONNECTIVITY Connectivity = NLM_CONNECTIVITY_DISCONNECTED;
PF_TYPE_DECL(WINAPI, HINTERNET, InternetOpenA, (LPCSTR, DWORD, LPCSTR, LPCSTR, DWORD));
PF_TYPE_DECL(WINAPI, BOOL, InternetSetOptionA, (HINTERNET, DWORD, LPVOID, DWORD));
PF_TYPE_DECL(WINAPI, BOOL, InternetGetConnectedState, (LPDWORD, DWORD));
PF_INIT_OR_OUT(InternetOpenA, WinInet);
PF_INIT_OR_OUT(InternetSetOptionA, WinInet);
PF_INIT(InternetGetConnectedState, WinInet);
// Create a NetworkListManager Instance to check the network connection
IGNORE_RETVAL(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE));
@ -284,13 +290,20 @@ static HINTERNET GetInternetSession(BOOL bRetry)
&IID_INetworkListManager, (LPVOID*)&pNetworkListManager);
if (hr == S_OK) {
for (i = 0; i <= WRITE_RETRIES; i++) {
hr = INetworkListManager_GetConnectivity(pNetworkListManager, &Connectivity);
hr = INetworkListManager_get_IsConnectedToInternet(pNetworkListManager, &InternetConnection);
// INetworkListManager may fail with ERROR_SERVICE_DEPENDENCY_FAIL if the DHCP service
// is not running, in which case we must fall back to using InternetGetConnectedState().
// See https://github.com/pbatard/rufus/issues/1801.
if ((hr == HRESULT_FROM_WIN32(ERROR_SERVICE_DEPENDENCY_FAIL)) && (pfInternetGetConnectedState != NULL)) {
InternetConnection = pfInternetGetConnectedState(&dwFlags, 0) ? VARIANT_TRUE : VARIANT_FALSE;
break;
}
if (hr == S_OK || !bRetry)
break;
Sleep(1000);
}
}
if (Connectivity == NLM_CONNECTIVITY_DISCONNECTED) {
if (InternetConnection == VARIANT_FALSE) {
SetLastError(ERROR_INTERNET_DISCONNECTED);
goto out;
}

10
src/rufus.rc
View file

@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDD_DIALOG DIALOGEX 12, 12, 232, 326
STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
EXSTYLE WS_EX_ACCEPTFILES
CAPTION "Rufus 3.18.1871"
CAPTION "Rufus 3.18.1872"
FONT 9, "Segoe UI Symbol", 400, 0, 0x0
BEGIN
LTEXT "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@ -395,8 +395,8 @@ END
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 3,18,1871,0
PRODUCTVERSION 3,18,1871,0
FILEVERSION 3,18,1872,0
PRODUCTVERSION 3,18,1872,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
@ -414,13 +414,13 @@ BEGIN
VALUE "Comments", "https://rufus.ie"
VALUE "CompanyName", "Akeo Consulting"
VALUE "FileDescription", "Rufus"
VALUE "FileVersion", "3.18.1871"
VALUE "FileVersion", "3.18.1872"
VALUE "InternalName", "Rufus"
VALUE "LegalCopyright", "© 2011-2022 Pete Batard (GPL v3)"
VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
VALUE "OriginalFilename", "rufus-3.18.exe"
VALUE "ProductName", "Rufus"
VALUE "ProductVersion", "3.18.1871"
VALUE "ProductVersion", "3.18.1872"
END
END
BLOCK "VarFileInfo"