345 lines
12 KiB
C++
345 lines
12 KiB
C++
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#include "stdafx.h"
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#include <stdio.h>
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#include <process.h>
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#include "IpSubnetMaskControl.h"
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#include "wlbsconfig.h"
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#include "wlbsutil.h"
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/* Limitations for IP address fields. */
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#define WLBS_FIELD_EMPTY -1
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#define WLBS_FIELD_LOW 0
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#define WLBS_FIELD_HIGH 255
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#define WLBS_BLANK_HPRI -1
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void PrintIPRangeError(HINSTANCE hInstance, HWND hWnd, unsigned int ids, int value, int low, int high);
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CIpSubnetMaskControl::CIpSubnetMaskControl(DWORD dwIpAddressId, DWORD dwSubnetMaskId)
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{
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m_dwIpAddressId = dwIpAddressId;
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m_dwSubnetMaskId = dwSubnetMaskId;
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m_hWndDialog = NULL;
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m_hInstance = NULL;
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ZeroMemory(&m_IPFieldChangeState, sizeof(m_IPFieldChangeState));
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}
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//+----------------------------------------------------------------------------
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//
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// Function: CIpSubnetMaskControl::OnInitDialog
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//
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// Description: Called upon WM_INITDIALOG message.
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//
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// Arguments: HWND hWnd - the parent dialog window
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// HINSTANCE hInstance - instance handle for resources
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//
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// Returns: Nothing
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//
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// History: fengsun Created Header 1/10/01
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//
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//+----------------------------------------------------------------------------
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void CIpSubnetMaskControl::OnInitDialog(HWND hWnd, HINSTANCE hInstance)
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{
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m_hWndDialog = hWnd;
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m_hInstance = hInstance;
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/* Limit the field ranges for the address fields. */
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::SendDlgItemMessage(hWnd, m_dwIpAddressId, EM_SETLIMITTEXT, CVY_MAX_CL_IP_ADDR, 0);
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::SendDlgItemMessage(hWnd, m_dwSubnetMaskId, EM_SETLIMITTEXT, CVY_MAX_CL_NET_MASK, 0);
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/* Limit the zeroth field of the dedicated IP address between 1 and 223. */
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::SendDlgItemMessage(m_hWndDialog, m_dwIpAddressId, IPM_SETRANGE, 0, (LPARAM)MAKEIPRANGE(WLBS_IP_FIELD_ZERO_LOW, WLBS_IP_FIELD_ZERO_HIGH));
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}
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/*
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* Method: OnSubnetMask
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* Description: Called when the user modifies the host netmask.
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*/
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LRESULT CIpSubnetMaskControl::OnSubnetMask(WORD wNotifyCode)
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{
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WCHAR wszIpAddress [CVY_MAX_CL_IP_ADDR + 1];
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WCHAR wszSubnetMask [CVY_MAX_CL_NET_MASK + 1];
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switch (wNotifyCode)
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{
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case EN_SETFOCUS:
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/* Only generate a netmask if the netmask is currently empty and the IP address is not. */
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if (::SendMessage(::GetDlgItem(m_hWndDialog, m_dwSubnetMaskId), IPM_ISBLANK, 0, 0) &&
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!::SendMessage(::GetDlgItem(m_hWndDialog, m_dwIpAddressId), IPM_ISBLANK, 0, 0))
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{
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/* Retrieve the cluster IP address. */
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::SendDlgItemMessage(m_hWndDialog, m_dwIpAddressId, WM_GETTEXT, CVY_MAX_CL_IP_ADDR + 1, (LPARAM)wszIpAddress);
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/* Fill the subnet mask. */
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ParamsGenerateSubnetMask(wszIpAddress, wszSubnetMask);
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/* Set the cluster subnet mask. */
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::SendDlgItemMessage(m_hWndDialog, m_dwSubnetMaskId, WM_SETTEXT, 0, (LPARAM)wszSubnetMask);
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break;
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}
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}
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return 0;
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}
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/*
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* Method: OnIpFieldChange
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* Description: Called wnen a field (byte) of the IP address/subnetmask changes. We use this
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* to make sure the first byte of the IP is not < 1 or > 223.
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*/
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LRESULT CIpSubnetMaskControl::OnIpFieldChange(int idCtrl, LPNMHDR pnmh)
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{
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LPNMIPADDRESS Ip;
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int low = WLBS_FIELD_LOW;
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int high = WLBS_FIELD_HIGH;
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Ip = (LPNMIPADDRESS)pnmh;
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if (idCtrl == m_dwIpAddressId)
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{
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/* Field zero of the cluster IP address has different limits. */
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if (!Ip->iField)
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{
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low = WLBS_IP_FIELD_ZERO_LOW;
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high = WLBS_IP_FIELD_ZERO_HIGH;
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}
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}
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/* The notifier may call us twice for the same change, so we have to do the bookkeeping to make
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sure we only alert the user once. Use static variables to keep track of our state. This will
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allow us to ignore duplicate alerts. */
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if ((m_IPFieldChangeState.IpControl != Ip->hdr.idFrom) || (m_IPFieldChangeState.Field != Ip->iField) ||
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(m_IPFieldChangeState.Value != Ip->iValue) || (m_IPFieldChangeState.RejectTimes > 0)) {
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m_IPFieldChangeState.RejectTimes = 0;
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m_IPFieldChangeState.IpControl = Ip->hdr.idFrom;
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m_IPFieldChangeState.Field = Ip->iField;
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m_IPFieldChangeState.Value = Ip->iValue;
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/* Check the field value against its limits. */
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if ((Ip->iValue != WLBS_FIELD_EMPTY) && ((Ip->iValue < low) || (Ip->iValue > high)))
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{
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/* Alert the user. */
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PrintIPRangeError(m_hInstance, m_hWndDialog,
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(idCtrl == m_dwIpAddressId) ? IDS_PARM_CL_IP_FIELD : IDS_PARM_CL_NM_FIELD,
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Ip->iValue, low, high);
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}
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} else m_IPFieldChangeState.RejectTimes++;
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return 0;
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}
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//+----------------------------------------------------------------------------
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//
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// Function: CIpSubnetMaskControl::SetInfo
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//
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// Description: Set the value to the control
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//
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// Arguments: const WCHAR* pszIpAddress -
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// const WCHAR* pszSubnetMask -
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//
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// Returns: Nothing
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//
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// History: shouse initial code
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// fengsun Created Header 1/10/01
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//
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//+----------------------------------------------------------------------------
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void CIpSubnetMaskControl::SetInfo(const WCHAR* pszIpAddress, const WCHAR* pszSubnetMask)
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{
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/* If the cluster IP address or subnet mask are the default values, set them to NUL strings. */
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/* If the dedicated IP address is empty, then clear the entry box. Otherwise, populate it with the IP address. */
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if (!pszIpAddress[0] || !wcscmp(pszIpAddress, CVY_DEF_CL_IP_ADDR))
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::SendMessage(::GetDlgItem(m_hWndDialog, m_dwIpAddressId), IPM_CLEARADDRESS, 0, 0);
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else
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::SendDlgItemMessage(m_hWndDialog, m_dwIpAddressId, WM_SETTEXT, 0, (LPARAM)pszIpAddress);
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/* If the host subnet mask is empty, then clear the entry box. Otherwise, populate it with the netmask. */
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if (!pszSubnetMask[0] || !wcscmp(pszSubnetMask, CVY_DEF_CL_NET_MASK))
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::SendMessage(::GetDlgItem(m_hWndDialog, m_dwSubnetMaskId), IPM_CLEARADDRESS, 0, 0);
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else
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::SendDlgItemMessage(m_hWndDialog, m_dwSubnetMaskId, WM_SETTEXT, 0, (LPARAM)pszSubnetMask);
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}
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//+----------------------------------------------------------------------------
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//
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// Function: CIpSubnetMaskControl::UpdateInfo
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//
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// Description: Retrieve value from control
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//
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// Arguments: OUT WCHAR* pszIpAddress -
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// OUT WCHAR* pszSubnetMask -
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//
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// Returns: Nothing
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//
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// History: shouse initial code
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// fengsun Created Header 1/10/01
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//
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//+----------------------------------------------------------------------------
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void CIpSubnetMaskControl::UpdateInfo(OUT WCHAR* pszIpAddress, OUT WCHAR* pszSubnetMask)
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{
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/* If the dedicated IP entry box is empty, then the dedicated IP address is NUL. Otherwise, grab it from the UI. */
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if (::SendMessage(::GetDlgItem(m_hWndDialog, m_dwIpAddressId), IPM_ISBLANK, 0, 0))
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{
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lstrcpy(pszIpAddress, CVY_DEF_CL_IP_ADDR);
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}
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else
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{
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::SendDlgItemMessage(m_hWndDialog, m_dwIpAddressId, WM_GETTEXT, CVY_MAX_CL_IP_ADDR, (LPARAM)pszIpAddress);
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}
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/* If the host net mask entry box is empty, then the host net mask is NUL. Otherwise, grab it from the UI. */
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if (::SendMessage(::GetDlgItem(m_hWndDialog, m_dwSubnetMaskId), IPM_ISBLANK, 0, 0))
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{
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lstrcpy(pszSubnetMask, CVY_DEF_CL_NET_MASK);
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}
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else
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{
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::SendDlgItemMessage(m_hWndDialog, m_dwSubnetMaskId, WM_GETTEXT, CVY_MAX_CL_NET_MASK, (LPARAM)pszSubnetMask);
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}
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}
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//+----------------------------------------------------------------------------
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//
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// Function: CIpSubnetMaskControl::ValidateInfo
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//
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// Description: Validate whether user input is valid
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//
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// Arguments: None
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//
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// Returns: bool - TRUE if valid
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//
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// History: shouse initial code
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// fengsun Created Header 1/10/01
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//
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//+----------------------------------------------------------------------------
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bool CIpSubnetMaskControl::ValidateInfo()
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{
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DWORD IPAddr;
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/* Check for blank IP address */
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if (::SendMessage(::GetDlgItem(m_hWndDialog, m_dwIpAddressId), IPM_ISBLANK, 0, 0))
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{
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/* Alert the user. */
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NcMsgBox(m_hInstance, ::GetActiveWindow(), IDS_PARM_ERROR, IDS_PARM_CL_IP_BLANK,
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MB_APPLMODAL | MB_ICONSTOP | MB_OK);
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SetFocus(::GetDlgItem(m_hWndDialog, m_dwIpAddressId));
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/* An error occurred. */
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return false;
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}
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/* Check for blank netmask */
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if (::SendMessage(::GetDlgItem(m_hWndDialog, m_dwSubnetMaskId), IPM_ISBLANK, 0, 0))
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{
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/* Fill in the netmask for the user. */
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OnSubnetMask(EN_SETFOCUS);
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/* Alert the user. */
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NcMsgBox(m_hInstance, ::GetActiveWindow(), IDS_PARM_ERROR, IDS_PARM_CL_NM_BLANK,
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MB_APPLMODAL | MB_ICONSTOP | MB_OK);
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/* An error occurred. */
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return false;
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}
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/* Only perform the rest of the IP checking if the user has specified both a dedicated
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IP address and a corresponding netmask. */
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if (!::SendMessage(::GetDlgItem(m_hWndDialog, m_dwIpAddressId), IPM_ISBLANK, 0, 0) &&
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!::SendMessage(::GetDlgItem(m_hWndDialog, m_dwSubnetMaskId), IPM_ISBLANK, 0, 0)) {
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/* Get the dedicated IP address. */
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::SendDlgItemMessage(m_hWndDialog, m_dwIpAddressId, IPM_GETADDRESS, 0, (LPARAM)&IPAddr);
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/* Make sure that the first octet is not zero. If it is, make it 1 and alter the user. */
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if (!FIRST_IPADDRESS(IPAddr)) {
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/* Make the first octet 1 instead of the erroneous 0. */
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IPAddr = IPAddr | (DWORD)(WLBS_IP_FIELD_ZERO_LOW << 24);
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/* Set the IP address and update our dedicated IP address string. */
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::SendDlgItemMessage(m_hWndDialog, m_dwIpAddressId, IPM_SETADDRESS, 0, (LPARAM)IPAddr);
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/* Alert the user. */
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PrintIPRangeError(m_hInstance, m_hWndDialog, IDS_PARM_CL_IP_FIELD, 0,
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WLBS_IP_FIELD_ZERO_LOW, WLBS_IP_FIELD_ZERO_HIGH);
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SetFocus(::GetDlgItem(m_hWndDialog, m_dwIpAddressId));
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return false;
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}
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WCHAR szIpAddress [CVY_MAX_CL_IP_ADDR + 1];
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WCHAR szSubnetMask [CVY_MAX_CL_IP_ADDR + 1];
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::SendDlgItemMessage(m_hWndDialog, m_dwIpAddressId, WM_GETTEXT, CVY_MAX_CL_IP_ADDR, (LPARAM)szIpAddress);
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::SendDlgItemMessage(m_hWndDialog, m_dwSubnetMaskId, WM_GETTEXT, CVY_MAX_CL_NET_MASK, (LPARAM)szSubnetMask);
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/* Check for valid dedicated IP address/netmask pairs. */
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if (!IsValidIPAddressSubnetMaskPair(szIpAddress, szSubnetMask)) {
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/* Alert the user. */
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NcMsgBox(m_hInstance, ::GetActiveWindow(), IDS_PARM_ERROR, IDS_PARM_INVAL_CL_IP,
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MB_APPLMODAL | MB_ICONSTOP | MB_OK);
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SetFocus(::GetDlgItem(m_hWndDialog, m_dwIpAddressId));
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/* An error occurred. */
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return false;
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}
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/* Check to make sure that the netmask is contiguous. */
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if (!IsContiguousSubnetMask(szSubnetMask)) {
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/* Alert the user. */
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NcMsgBox(m_hInstance, ::GetActiveWindow(), IDS_PARM_ERROR, IDS_PARM_INVAL_CL_MASK,
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MB_APPLMODAL | MB_ICONSTOP | MB_OK);
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SetFocus(::GetDlgItem(m_hWndDialog, m_dwIpAddressId));
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/* An error occurred. */
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return false;
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}
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}
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return true; // no error
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}
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/*
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* Method: PrintIPRangeError
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* Description: Displays a message box warning the user of an out-of-range entry in
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* an IP address octet.
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*/
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void PrintIPRangeError (HINSTANCE hInstance, HWND hWnd, unsigned int ids, int value, int low, int high)
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{
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WCHAR szCurrent[10];
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WCHAR szLow[10];
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WCHAR szHigh[10];
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/* Fill in the range and the offending value. */
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wsprintfW(szHigh, L"%d", high);
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wsprintfW(szCurrent, L"%d", value);
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wsprintfW(szLow, L"%d", low);
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/* Pop-up a message box. */
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NcMsgBox(hInstance, hWnd, IDS_PARM_ERROR, ids, MB_APPLMODAL | MB_ICONSTOP | MB_OK, szCurrent, szLow, szHigh);
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}
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