VeraCrypt
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path: root/src/Main/Forms/VolumePimWizardPage.cpp
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/*
 Copyright (c) 2015-2016 Mounir IDRASSI for the VeraCrypt project.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
*/

#include "System.h"
#include "Main/GraphicUserInterface.h"
#include "VolumePimWizardPage.h"

namespace VeraCrypt
{
	VolumePimWizardPage::VolumePimWizardPage (wxPanel* parent)
		: VolumePimWizardPageBase (parent)
	{
		SetPimValidator ();
	}

	VolumePimWizardPage::~VolumePimWizardPage ()
	{
	}

	int VolumePimWizardPage::GetVolumePim () const
	{
		if (VolumePimTextCtrl->IsEnabled ())
		{
			wxString pimStr (VolumePimTextCtrl->GetValue());
			long pim = 0;
			if (pimStr.IsEmpty())
				return 0;
			if (((size_t) wxNOT_FOUND == pimStr.find_first_not_of (wxT("0123456789")))
				&& pimStr.ToLong (&pim)
				&& pim <= MAX_PIM_VALUE)
				return (int) pim;
			else
				return -1;
		}
		else
			return 0;
	}

	void VolumePimWizardPage::SetVolumePim (int pim)
	{
		if (pim > 0)
		{
			VolumePimTextCtrl->SetValue (StringConverter::FromNumber (pim));
		}
		else
		{
			VolumePimTextCtrl->SetValue (wxT(""));
		}

		OnPimValueChanged (pim);
	}

	bool VolumePimWizardPage::IsValid ()
	{
		return true;
	}

	void VolumePimWizardPage::OnPimChanged  (wxCommandEvent& event)
	{
		OnPimValueChanged (GetVolumePim ());
	}

	void VolumePimWizardPage::OnPimValueChanged  (int pim)
	{
		if (pim > 0)
		{
			VolumePimHelpStaticText->SetForegroundColour(*wxRED);
			VolumePimHelpStaticText->SetLabel(LangString["PIM_CHANGE_WARNING"]);
		}
		else
		{
			VolumePimHelpStaticText->SetForegroundColour(*wxBLACK);
			VolumePimHelpStaticText->SetLabel(LangString["IDC_PIM_HELP"]);
		}
		Fit();
		Layout();
	}

	void VolumePimWizardPage::SetPimValidator ()
	{
		wxTextValidator validator (wxFILTER_INCLUDE_CHAR_LIST);  // wxFILTER_NUMERIC does not exclude - . , etc.
		const wxChar *valArr[] = { L"0", L"1", L"2", L"3", L"4", L"5", L"6", L"7", L"8", L"9" };
		validator.SetIncludes (wxArrayString (array_capacity (valArr), (const wxChar **) &valArr));
		VolumePimTextCtrl->SetValidator (validator);
	}

	void VolumePimWizardPage::OnDisplayPimCheckBoxClick( wxCommandEvent& event )
	{
		FreezeScope freeze (this);

		bool display = event.IsChecked ();

		wxTextCtrl *newTextCtrl = new wxTextCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, display ? 0 : wxTE_PASSWORD);
		newTextCtrl->SetMaxLength (MAX_PIM_DIGITS);
		newTextCtrl->SetValue (VolumePimTextCtrl->GetValue());
		newTextCtrl->SetMinSize (VolumePimTextCtrl->GetSize());

		PimSizer->Replace (VolumePimTextCtrl, newTextCtrl);
		VolumePimTextCtrl->Show (false);
		VolumePimTextCtrl->SetValue (wxString (L'X', VolumePimTextCtrl->GetLineLength(0)));
		GetVolumePim ();

		Fit();
		Layout();
		newTextCtrl->SetMinSize (VolumePimTextCtrl->GetMinSize());

		newTextCtrl->Connect (wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler (VolumePimWizardPage::OnPimChanged), nullptr, this);
		delete VolumePimTextCtrl;
		VolumePimTextCtrl = newTextCtrl;
		SetPimValidator ();
		OnPimValueChanged (GetVolumePim ());
	}
}
n class="nf">lea si, loader_name_msg call print jmp $ checksum_ok: ; Set up decompressor segment mov ax, es mov ds, ax cli mov ss, ax mov sp, TC_BOOT_LOADER_DECOMPRESSOR_MEMORY_SIZE sti push dx ; Decompress boot loader mov cx, word ptr [start + TC_BOOT_SECTOR_LOADER_LENGTH_OFFSET] sub cx, TC_GZIP_HEADER_SIZE push cx ; Compressed data size push TC_BOOT_LOADER_COMPRESSED_BUFFER_OFFSET + TC_GZIP_HEADER_SIZE ; Compressed data push TC_MAX_BOOT_LOADER_DECOMPRESSED_SIZE ; Output buffer size push TC_BOOT_LOADER_DECOMPRESSOR_MEMORY_SIZE + TC_COM_EXECUTABLE_OFFSET ; Output buffer push cs push decompressor_ret push es push TC_COM_EXECUTABLE_OFFSET retf decompressor_ret: add sp, 8 pop dx ; Restore boot sector segment push cs pop ds ; Check decompression result test ax, ax jz decompression_ok lea si, loader_damaged_msg call print jmp $ decompression_ok: ; DH = boot sector flags mov dh, byte ptr [start + TC_BOOT_SECTOR_CONFIG_OFFSET] ; Set up boot loader segment mov ax, es add ax, TC_BOOT_LOADER_DECOMPRESSOR_MEMORY_SIZE / 16 mov es, ax mov ds, ax cli mov ss, ax mov sp, TC_BOOT_LOADER_STACK_TOP sti ; Execute boot loader push es push TC_COM_EXECUTABLE_OFFSET retf ; Print string print: xor bx, bx mov ah, 0eh cld @@: lodsb test al, al jz print_end int 10h jmp @B print_end: ret ; Read sectors of the first cylinder read_sectors: mov ch, 0 ; Cylinder mov dh, 0 ; Head ; DL = drive number passed from BIOS mov ah, 2 int 13h jnc read_ok lea si, disk_error_msg call print read_ok: ret ; Calculate checksum checksum: push ds push es pop ds xor eax, eax cld @@: lodsb add ebx, eax rol ebx, 1 loop @B pop ds ret backup_loader_used db 0 disk_error_msg db 'Disk error', 13, 10, 7, 0 loader_damaged_msg db 7, 'Loader damaged! Repair with Rescue Disk', 0 ORG 7C00h + 510 dw 0AA55h ; Boot sector signature _TEXT ENDS END start