ras.h

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    DWORD       dwSubEntries;
    DWORD       dwDialMode;
    DWORD       dwDialExtraPercent;
    DWORD       dwDialExtraSampleSeconds;
    DWORD       dwHangUpExtraPercent;
    DWORD       dwHangUpExtraSampleSeconds;
    //
    // Idle timeout
    //
    DWORD       dwIdleDisconnectSeconds;
#endif

#if (WINVER >= 0x500)

    //
    // Entry Type
    //
    DWORD       dwType;

    //
    // Encryption type
    //
    DWORD       dwEncryptionType;

    //
    // CustomAuthKey to be used for EAP
    //
    DWORD       dwCustomAuthKey;

    //
    // Guid of the connection
    //
    GUID        guidId;

    //
    // Custom Dial Dll
    //
    CHAR        szCustomDialDll[MAX_PATH];

    //
    // DwVpnStrategy
    //
    DWORD       dwVpnStrategy;
#endif

};

#define RASENTRYW struct tagRASENTRYW
RASENTRYW
{
    DWORD       dwSize;
    DWORD       dwfOptions;
    //
    // Location/phone number
    //
    DWORD       dwCountryID;
    DWORD       dwCountryCode;
    WCHAR       szAreaCode[ RAS_MaxAreaCode + 1 ];
    WCHAR       szLocalPhoneNumber[ RAS_MaxPhoneNumber + 1 ];
    DWORD       dwAlternateOffset;
    //
    // PPP/Ip
    //
    RASIPADDR   ipaddr;
    RASIPADDR   ipaddrDns;
    RASIPADDR   ipaddrDnsAlt;
    RASIPADDR   ipaddrWins;
    RASIPADDR   ipaddrWinsAlt;
    //
    // Framing
    //
    DWORD       dwFrameSize;
    DWORD       dwfNetProtocols;
    DWORD       dwFramingProtocol;
    //
    // Scripting
    //
    WCHAR       szScript[ MAX_PATH ];
    //
    // AutoDial
    //
    WCHAR       szAutodialDll[ MAX_PATH ];
    WCHAR       szAutodialFunc[ MAX_PATH ];
    //
    // Device
    //
    WCHAR       szDeviceType[ RAS_MaxDeviceType + 1 ];
    WCHAR       szDeviceName[ RAS_MaxDeviceName + 1 ];
    //
    // X.25
    //
    WCHAR       szX25PadType[ RAS_MaxPadType + 1 ];
    WCHAR       szX25Address[ RAS_MaxX25Address + 1 ];
    WCHAR       szX25Facilities[ RAS_MaxFacilities + 1 ];
    WCHAR       szX25UserData[ RAS_MaxUserData + 1 ];
    DWORD       dwChannels;
    //
    // Reserved
    //
    DWORD       dwReserved1;
    DWORD       dwReserved2;
#if (WINVER >= 0x401)
    //
    // Multilink
    //
    DWORD       dwSubEntries;
    DWORD       dwDialMode;
    DWORD       dwDialExtraPercent;
    DWORD       dwDialExtraSampleSeconds;
    DWORD       dwHangUpExtraPercent;
    DWORD       dwHangUpExtraSampleSeconds;
    //
    // Idle timeout
    //
    DWORD       dwIdleDisconnectSeconds;
#endif

#if (WINVER >= 0x500)
    //
    // Entry Type
    //
    DWORD       dwType;

    //
    // EncryptionType
    //
    DWORD       dwEncryptionType;

    //
    // CustomAuthKey to be used for EAP
    //
    DWORD       dwCustomAuthKey;

    //
    // Guid of the connection
    //
    GUID        guidId;

    //
    // Custom Dial Dll
    //
    WCHAR       szCustomDialDll[MAX_PATH];

    //
    // Vpn Strategy
    //
    DWORD       dwVpnStrategy;
#endif
};

#ifdef UNICODE
#define RASENTRY RASENTRYW
#else
#define RASENTRY RASENTRYA
#endif

#define LPRASENTRYW RASENTRYW*
#define LPRASENTRYA RASENTRYA*
#define LPRASENTRY  RASENTRY*

/* RASENTRY 'dwfOptions' bit flags.
*/
#define RASEO_UseCountryAndAreaCodes    0x00000001
#define RASEO_SpecificIpAddr            0x00000002
#define RASEO_SpecificNameServers       0x00000004
#define RASEO_IpHeaderCompression       0x00000008
#define RASEO_RemoteDefaultGateway      0x00000010
#define RASEO_DisableLcpExtensions      0x00000020
#define RASEO_TerminalBeforeDial        0x00000040
#define RASEO_TerminalAfterDial         0x00000080
#define RASEO_ModemLights               0x00000100
#define RASEO_SwCompression             0x00000200
#define RASEO_RequireEncryptedPw        0x00000400
#define RASEO_RequireMsEncryptedPw      0x00000800
#define RASEO_RequireDataEncryption     0x00001000
#define RASEO_NetworkLogon              0x00002000
#define RASEO_UseLogonCredentials       0x00004000
#define RASEO_PromoteAlternates         0x00008000
#if (WINVER >= 0x401)
#define RASEO_SecureLocalFiles          0x00010000
#endif
#if (WINVER >= 0x500)
#define RASEO_RequireEAP                0x00020000
#define RASEO_RequirePAP                0x00040000
#define RASEO_RequireSPAP               0x00080000
#define RASEO_Custom                    0x00100000

#define RASEO_PreviewPhoneNumber        0x00200000
#define RASEO_SharedPhoneNumbers        0x00800000
#define RASEO_PreviewUserPw             0x01000000
#define RASEO_PreviewDomain             0x02000000
#define RASEO_ShowDialingProgress       0x04000000
#define RASEO_RequireCHAP               0x08000000
#define RASEO_RequireMsCHAP             0x10000000
#define RASEO_RequireMsCHAP2            0x20000000
#define RASEO_RequireW95MSCHAP          0x40000000
#define RASEO_CustomScript              0x80000000

#endif

/* RASENTRY 'dwProtocols' bit flags.
*/
#define RASNP_NetBEUI                   0x00000001
#define RASNP_Ipx                       0x00000002
#define RASNP_Ip                        0x00000004

/* RASENTRY 'dwFramingProtocols' bit flags.
*/
#define RASFP_Ppp                       0x00000001
#define RASFP_Slip                      0x00000002
#define RASFP_Ras                       0x00000004

/* RASENTRY 'szDeviceType' default strings.
*/
#define RASDT_Modem                     TEXT("modem")
#define RASDT_Isdn                      TEXT("isdn")
#define RASDT_X25                       TEXT("x25")
#define RASDT_Vpn                       TEXT("vpn")
#define RASDT_Pad                       TEXT("pad")
#define RASDT_Generic                   TEXT("GENERIC")
#define RASDT_Serial        			TEXT("SERIAL")
#define RASDT_FrameRelay                TEXT("FRAMERELAY")
#define RASDT_Atm                       TEXT("ATM")
#define RASDT_Sonet                     TEXT("SONET")
#define RASDT_SW56                      TEXT("SW56")
#define RASDT_Irda                      TEXT("IRDA")
#define RASDT_Parallel                  TEXT("PARALLEL")


// The entry type used to determine which UI properties
// are to be presented to user.  This generally corresponds
// to a Connections "add" wizard selection.
//
#define RASET_Phone    1  // Phone lines: modem, ISDN, X.25, etc
#define RASET_Vpn      2  // Virtual private network
#define RASET_Direct   3  // Direct connect: serial, parallel
#define RASET_Internet 4  // BaseCamp internet

/* Old AutoDial DLL function prototype.
**
** This prototype is documented for backward-compatibility
** purposes only.  It is superceded by the RASADFUNCA
** and RASADFUNCW definitions below.  DO NOT USE THIS
** PROTOTYPE IN NEW CODE.  SUPPORT FOR IT MAY BE REMOVED
** IN FUTURE VERSIONS OF RAS.
*/
typedef BOOL (WINAPI *ORASADFUNC)( HWND, LPSTR, DWORD, LPDWORD );

#if (WINVER >= 0x401)
/* Flags for RasConnectionNotification().
*/
#define RASCN_Connection        0x00000001
#define RASCN_Disconnection     0x00000002
#define RASCN_BandwidthAdded    0x00000004
#define RASCN_BandwidthRemoved  0x00000008

/* RASENTRY 'dwDialMode' values.
*/
#define RASEDM_DialAll                  1
#define RASEDM_DialAsNeeded             2

/* RASENTRY 'dwIdleDisconnectSeconds' constants.
*/
#define RASIDS_Disabled                 0xffffffff
#define RASIDS_UseGlobalValue           0

/* AutoDial DLL function parameter block.
*/
#define RASADPARAMS struct tagRASADPARAMS
RASADPARAMS
{
    DWORD       dwSize;
    HWND        hwndOwner;
    DWORD       dwFlags;
    LONG        xDlg;
    LONG        yDlg;
};

#define LPRASADPARAMS RASADPARAMS*

/* AutoDial DLL function parameter block 'dwFlags.'
*/
#define RASADFLG_PositionDlg            0x00000001

/* Prototype AutoDial DLL function.
*/
typedef BOOL (WINAPI *RASADFUNCA)( LPSTR, LPSTR, LPRASADPARAMS, LPDWORD );
typedef BOOL (WINAPI *RASADFUNCW)( LPWSTR, LPWSTR, LPRASADPARAMS, LPDWORD );

#ifdef UNICODE
#define RASADFUNC RASADFUNCW
#else
#define RASADFUNC RASADFUNCA
#endif

/* A RAS phone book multilinked sub-entry.
*/
#define RASSUBENTRYA struct tagRASSUBENTRYA
RASSUBENTRYA
{
    DWORD       dwSize;
    DWORD       dwfFlags;
    //
    // Device
    //
    CHAR        szDeviceType[ RAS_MaxDeviceType + 1 ];
    CHAR        szDeviceName[ RAS_MaxDeviceName + 1 ];
    //
    // Phone numbers
    //
    CHAR        szLocalPhoneNumber[ RAS_MaxPhoneNumber + 1 ];
    DWORD       dwAlternateOffset;
};

#define RASSUBENTRYW struct tagRASSUBENTRYW
RASSUBENTRYW
{
    DWORD       dwSize;
    DWORD       dwfFlags;
    //
    // Device
    //
    WCHAR       szDeviceType[ RAS_MaxDeviceType + 1 ];
    WCHAR       szDeviceName[ RAS_MaxDeviceName + 1 ];
    //
    // Phone numbers
    //
    WCHAR       szLocalPhoneNumber[ RAS_MaxPhoneNumber + 1 ];
    DWORD       dwAlternateOffset;
};

#ifdef UNICODE
#define RASSUBENTRY RASSUBENTRYW
#else
#define RASSUBENTRY RASSUBENTRYA
#endif

#define LPRASSUBENTRYW RASSUBENTRYW*
#define LPRASSUBENTRYA RASSUBENTRYA*
#define LPRASSUBENTRY  RASSUBENTRY*

/* Ras{Get,Set}Credentials structure.  These calls
** supercede Ras{Get,Set}EntryDialParams.
*/
#define RASCREDENTIALSA struct tagRASCREDENTIALSA
RASCREDENTIALSA
{
    DWORD dwSize;
    DWORD dwMask;
    CHAR szUserName[ UNLEN + 1 ];
    CHAR szPassword[ PWLEN + 1 ];
    CHAR szDomain[ DNLEN + 1 ];
};

#define RASCREDENTIALSW struct tagRASCREDENTIALSW
RASCREDENTIALSW
{
    DWORD dwSize;
    DWORD dwMask;
    WCHAR szUserName[ UNLEN + 1 ];
    WCHAR szPassword[ PWLEN + 1 ];
    WCHAR szDomain[ DNLEN + 1 ];
};

#ifdef UNICODE
#define RASCREDENTIALS RASCREDENTIALSW
#else
#define RASCREDENTIALS RASCREDENTIALSA
#endif

#define LPRASCREDENTIALSW RASCREDENTIALSW*
#define LPRASCREDENTIALSA RASCREDENTIALSA*
#define LPRASCREDENTIALS  RASCREDENTIALS*

/* RASCREDENTIALS 'dwMask' values.
*/
#define RASCM_UserName       0x00000001
#define RASCM_Password       0x00000002
#define RASCM_Domain         0x00000004

/* AutoDial address properties.
*/
#define RASAUTODIALENTRYA struct tagRASAUTODIALENTRYA
RASAUTODIALENTRYA
{
    DWORD dwSize;
    DWORD dwFlags;
    DWORD dwDialingLocation;
    CHAR szEntry[ RAS_MaxEntryName + 1];
};

#define RASAUTODIALENTRYW struct tagRASAUTODIALENTRYW
RASAUTODIALENTRYW
{
    DWORD dwSize;
    DWORD dwFlags;
    DWORD dwDialingLocation;
    WCHAR szEntry[ RAS_MaxEntryName + 1];
};

#ifdef UNICODE
#define RASAUTODIALENTRY RASAUTODIALENTRYW
#else
#define RASAUTODIALENTRY RASAUTODIALENTRYA
#endif

#define LPRASAUTODIALENTRYW RASAUTODIALENTRYW*
#define LPRASAUTODIALENTRYA RASAUTODIALENTRYA*
#define LPRASAUTODIALENTRY  RASAUTODIALENTRY*

/* AutoDial control parameter values for
** Ras{Get,Set}AutodialParam.
*/
#define RASADP_DisableConnectionQuery           0
#define RASADP_LoginSessionDisable              1
#define RASADP_SavedAddressesLimit              2
#define RASADP_FailedConnectionTimeout          3
#define RASADP_ConnectionQueryTimeout           4

#endif // (WINVER >= 0x401)