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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2019-10-27 02:00:07 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2019-10-27 02:05:00 +0200 |
| commit | b1b692d4a3f1e84d5a0f18cb78a29ff754f2bf85 (patch) | |
| tree | 396e7b7e848b7f2365802709e41b40b3294d11e4 | |
| parent | 2722b465302626c2231f2d76e927bce3a9ccda4f (diff) | |
| download | VeraCrypt-b1b692d4a3f1e84d5a0f18cb78a29ff754f2bf85.tar.gz VeraCrypt-b1b692d4a3f1e84d5a0f18cb78a29ff754f2bf85.zip | |
Windows: Only update boot configuration on disk if the user actually changed something in the UI
| -rw-r--r-- | src/Mount/Mount.c | 54 |
1 files changed, 29 insertions, 25 deletions
diff --git a/src/Mount/Mount.c b/src/Mount/Mount.c index bde729ee..686a83b1 100644 --- a/src/Mount/Mount.c +++ b/src/Mount/Mount.c @@ -11599,6 +11599,8 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA { WORD lw = LOWORD (wParam); static std::string platforminfo; + static byte currentUserConfig; + static string currentCustomUserMessage; switch (msg) { @@ -11640,6 +11642,10 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA return 1; } + // we store current configuration in order to be able to detect if user changed it or not after clicking OK + currentUserConfig = userConfig; + currentCustomUserMessage = customUserMessage; + if (bootLoaderVersion != VERSION_NUM) Warning ("BOOT_LOADER_VERSION_INCORRECT_PREFERENCES", hwndDlg); @@ -11709,11 +11715,16 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA { try { - std::string dcsprop = ReadESPFile (L"\\EFI\\VeraCrypt\\DcsProp", true); + std::string currentDcsprop = ReadESPFile (L"\\EFI\\VeraCrypt\\DcsProp", true); + std::string dcsprop = currentDcsprop; while (TextEditDialogBox(FALSE, hwndDlg, GetString ("BOOT_LOADER_CONFIGURATION_FILE"), dcsprop) == IDOK) { - if (validateDcsPropXml (dcsprop.c_str())) + if (dcsprop == currentDcsprop) + { + break; + } + else if (validateDcsPropXml (dcsprop.c_str())) { WriteESPFile (L"\\EFI\\VeraCrypt\\DcsProp", (LPBYTE) dcsprop.c_str(), (DWORD) dcsprop.size(), true); break; @@ -11753,17 +11764,7 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA if (!bSystemIsGPT) GetDlgItemTextA (hwndDlg, IDC_CUSTOM_BOOT_LOADER_MESSAGE, customUserMessage, sizeof (customUserMessage)); - byte userConfig; - try - { - if (!BootEncObj->ReadBootSectorConfig (nullptr, 0, &userConfig)) - return 1; - } - catch (Exception &e) - { - e.Show (hwndDlg); - return 1; - } + byte userConfig = currentUserConfig; if (IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_PIM_PROMPT)) userConfig |= TC_BOOT_USER_CFG_FLAG_DISABLE_PIM; @@ -11772,22 +11773,22 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA if (bSystemIsGPT) { - if (IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_HASH_PROMPT)) - userConfig |= TC_BOOT_USER_CFG_FLAG_STORE_HASH; - else - userConfig &= ~TC_BOOT_USER_CFG_FLAG_STORE_HASH; + if (IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_HASH_PROMPT)) + userConfig |= TC_BOOT_USER_CFG_FLAG_STORE_HASH; + else + userConfig &= ~TC_BOOT_USER_CFG_FLAG_STORE_HASH; } else { if (IsDlgButtonChecked (hwndDlg, IDC_DISABLE_BOOT_LOADER_OUTPUT)) - userConfig |= TC_BOOT_USER_CFG_FLAG_SILENT_MODE; - else - userConfig &= ~TC_BOOT_USER_CFG_FLAG_SILENT_MODE; + userConfig |= TC_BOOT_USER_CFG_FLAG_SILENT_MODE; + else + userConfig &= ~TC_BOOT_USER_CFG_FLAG_SILENT_MODE; - if (!IsDlgButtonChecked (hwndDlg, IDC_ALLOW_ESC_PBA_BYPASS)) - userConfig |= TC_BOOT_USER_CFG_FLAG_DISABLE_ESC; - else - userConfig &= ~TC_BOOT_USER_CFG_FLAG_DISABLE_ESC; + if (!IsDlgButtonChecked (hwndDlg, IDC_ALLOW_ESC_PBA_BYPASS)) + userConfig |= TC_BOOT_USER_CFG_FLAG_DISABLE_ESC; + else + userConfig &= ~TC_BOOT_USER_CFG_FLAG_DISABLE_ESC; } try @@ -11807,7 +11808,10 @@ static BOOL CALLBACK BootLoaderPreferencesDlgProc (HWND hwndDlg, UINT msg, WPARA return 1; } - BootEncObj->WriteBootSectorUserConfig (userConfig, customUserMessage, prop.volumePim, prop.pkcs5); + // only write boot configuration if something changed + if ((userConfig != currentUserConfig) || (!bSystemIsGPT && (customUserMessage != currentCustomUserMessage))) + BootEncObj->WriteBootSectorUserConfig (userConfig, customUserMessage, prop.volumePim, prop.pkcs5); + SetDriverConfigurationFlag (TC_DRIVER_CONFIG_CACHE_BOOT_PASSWORD, bPasswordCacheEnabled); SetDriverConfigurationFlag (TC_DRIVER_CONFIG_CACHE_BOOT_PIM, (bPasswordCacheEnabled && bPimCacheEnabled)? TRUE : FALSE); SetDriverConfigurationFlag (TC_DRIVER_CONFIG_DISABLE_EVIL_MAID_ATTACK_DETECTION, IsDlgButtonChecked (hwndDlg, IDC_DISABLE_EVIL_MAID_ATTACK_DETECTION)); |