Click here to Skip to main content
Click here to Skip to main content
Add your own
alternative version

How Proxy Server serves FTP clients?

, 10 Feb 2005 CPOL
This article describes how Proxy Server deals with PORT and PASV FTP commands
proxyftp_demo.zip
LiteProxyServer.exe
proxyftp_src.zip
IPHlpApi.Lib
RES
LiteProxyServerDoc.ico
Mem1.ICO
Mem2.ICO
Mem3.ICO
Mem4.ICO
Mem5.ICO
Mem6.ICO
Mem7.ICO
Mem8.ICO
Mem9.ICO
Mem10.ICO
ChatRoom.ico
LiteProxyServer.ico
Toolbar.bmp
BITMAP1.BMP
BMP00001.BMP
BMP00002.BMP
LiteProxyServer.dsp
LiteProxyServer.dsw
/*++

Copyright (c) Microsoft Corporation. All rights reserved.

Module Name:

    iptypes.h

--*/

#ifndef IP_TYPES_INCLUDED
#define IP_TYPES_INCLUDED

#if _MSC_VER > 1000
#pragma once
#endif

#ifdef __cplusplus
extern "C" {
#endif

#pragma warning(disable:4201)

#include <time.h>

// Definitions and structures used by getnetworkparams and getadaptersinfo apis

#define MAX_ADAPTER_DESCRIPTION_LENGTH  128 // arb.
#define MAX_ADAPTER_NAME_LENGTH         256 // arb.
#define MAX_ADAPTER_ADDRESS_LENGTH      8   // arb.
#define DEFAULT_MINIMUM_ENTITIES        32  // arb.
#define MAX_HOSTNAME_LEN                128 // arb.
#define MAX_DOMAIN_NAME_LEN             128 // arb.
#define MAX_SCOPE_ID_LEN                256 // arb.

//
// types
//

// Node Type

#define BROADCAST_NODETYPE              1
#define PEER_TO_PEER_NODETYPE           2
#define MIXED_NODETYPE                  4
#define HYBRID_NODETYPE                 8

//
// IP_ADDRESS_STRING - store an IP address as a dotted decimal string
//

typedef struct {
    char String[4 * 4];
} IP_ADDRESS_STRING, *PIP_ADDRESS_STRING, IP_MASK_STRING, *PIP_MASK_STRING;

//
// IP_ADDR_STRING - store an IP address with its corresponding subnet mask,
// both as dotted decimal strings
//

typedef struct _IP_ADDR_STRING {
    struct _IP_ADDR_STRING* Next;
    IP_ADDRESS_STRING IpAddress;
    IP_MASK_STRING IpMask;
    DWORD Context;
} IP_ADDR_STRING, *PIP_ADDR_STRING;

//
// ADAPTER_INFO - per-adapter information. All IP addresses are stored as
// strings
//

typedef struct _IP_ADAPTER_INFO {
    struct _IP_ADAPTER_INFO* Next;
    DWORD ComboIndex;
    char AdapterName[MAX_ADAPTER_NAME_LENGTH + 4];
    char Description[MAX_ADAPTER_DESCRIPTION_LENGTH + 4];
    UINT AddressLength;
    BYTE Address[MAX_ADAPTER_ADDRESS_LENGTH];
    DWORD Index;
    UINT Type;
    UINT DhcpEnabled;
    PIP_ADDR_STRING CurrentIpAddress;
    IP_ADDR_STRING IpAddressList;
    IP_ADDR_STRING GatewayList;
    IP_ADDR_STRING DhcpServer;
    BOOL HaveWins;
    IP_ADDR_STRING PrimaryWinsServer;
    IP_ADDR_STRING SecondaryWinsServer;
    time_t LeaseObtained;
    time_t LeaseExpires;
} IP_ADAPTER_INFO, *PIP_ADAPTER_INFO;

#ifdef _WINSOCK2API_

//
// The following types require Winsock2.
//

typedef enum {
    IpPrefixOriginOther = 0,
    IpPrefixOriginManual,
    IpPrefixOriginWellKnown,
    IpPrefixOriginDhcp,
    IpPrefixOriginRouterAdvertisement,
} IP_PREFIX_ORIGIN;

typedef enum {
    IpSuffixOriginOther = 0,
    IpSuffixOriginManual,
    IpSuffixOriginWellKnown,
    IpSuffixOriginDhcp,
    IpSuffixOriginLinkLayerAddress,
    IpSuffixOriginRandom,
} IP_SUFFIX_ORIGIN;

typedef enum {
    IpDadStateInvalid    = 0,
    IpDadStateTentative,
    IpDadStateDuplicate,
    IpDadStateDeprecated,
    IpDadStatePreferred,
} IP_DAD_STATE;

typedef struct _IP_ADAPTER_UNICAST_ADDRESS {
    union {
        ULONGLONG Alignment;
        struct { 
            ULONG Length;
            DWORD Flags;
        };
    };
    struct _IP_ADAPTER_UNICAST_ADDRESS *Next;
    SOCKET_ADDRESS Address;

    IP_PREFIX_ORIGIN PrefixOrigin;
    IP_SUFFIX_ORIGIN SuffixOrigin;
    IP_DAD_STATE DadState;

    ULONG ValidLifetime;
    ULONG PreferredLifetime;
    ULONG LeaseLifetime;
} IP_ADAPTER_UNICAST_ADDRESS, *PIP_ADAPTER_UNICAST_ADDRESS;

typedef struct _IP_ADAPTER_ANYCAST_ADDRESS {
    union {
        ULONGLONG Alignment;
        struct { 
            ULONG Length;
            DWORD Flags;
        };
    };
    struct _IP_ADAPTER_ANYCAST_ADDRESS *Next;
    SOCKET_ADDRESS Address;
} IP_ADAPTER_ANYCAST_ADDRESS, *PIP_ADAPTER_ANYCAST_ADDRESS;

typedef struct _IP_ADAPTER_MULTICAST_ADDRESS {
    union {
        ULONGLONG Alignment;
        struct {
            ULONG Length;
            DWORD Flags;
        };
    };
    struct _IP_ADAPTER_MULTICAST_ADDRESS *Next;
    SOCKET_ADDRESS Address;
} IP_ADAPTER_MULTICAST_ADDRESS, *PIP_ADAPTER_MULTICAST_ADDRESS;

//
// Per-address Flags
//
#define IP_ADAPTER_ADDRESS_DNS_ELIGIBLE 0x01
#define IP_ADAPTER_ADDRESS_TRANSIENT    0x02

typedef struct _IP_ADAPTER_DNS_SERVER_ADDRESS {
    union {
        ULONGLONG Alignment;
        struct {
            ULONG Length;
            DWORD Reserved;
        };
    };
    struct _IP_ADAPTER_DNS_SERVER_ADDRESS *Next;
    SOCKET_ADDRESS Address;
} IP_ADAPTER_DNS_SERVER_ADDRESS, *PIP_ADAPTER_DNS_SERVER_ADDRESS;

//
// Per-adapter Flags
//
#define IP_ADAPTER_DDNS_ENABLED            0x01
#define IP_ADAPTER_REGISTER_ADAPTER_SUFFIX 0x02
#define IP_ADAPTER_DHCP_ENABLED            0x04

//
// OperStatus values from RFC 2863
//
typedef enum {
    IfOperStatusUp = 1,
    IfOperStatusDown,
    IfOperStatusTesting,
    IfOperStatusUnknown,
    IfOperStatusDormant,
    IfOperStatusNotPresent,
    IfOperStatusLowerLayerDown
} IF_OPER_STATUS;

typedef struct _IP_ADAPTER_ADDRESSES {
    union {
        ULONGLONG Alignment;
        struct {
            ULONG Length;
            DWORD IfIndex;
        };
    };
    struct _IP_ADAPTER_ADDRESSES *Next;
    PCHAR AdapterName;
    PIP_ADAPTER_UNICAST_ADDRESS FirstUnicastAddress;
    PIP_ADAPTER_ANYCAST_ADDRESS FirstAnycastAddress;
    PIP_ADAPTER_MULTICAST_ADDRESS FirstMulticastAddress;
    PIP_ADAPTER_DNS_SERVER_ADDRESS FirstDnsServerAddress;
    PWCHAR DnsSuffix;
    PWCHAR Description;
    PWCHAR FriendlyName;
    BYTE PhysicalAddress[MAX_ADAPTER_ADDRESS_LENGTH];
    DWORD PhysicalAddressLength;
    DWORD Flags;
    DWORD Mtu;
    DWORD IfType;
    IF_OPER_STATUS OperStatus;
} IP_ADAPTER_ADDRESSES, *PIP_ADAPTER_ADDRESSES;

//
// Flags used as argument to GetAdaptersAddresses()
//
#define GAA_FLAG_SKIP_UNICAST      0x0001
#define GAA_FLAG_SKIP_ANYCAST      0x0002
#define GAA_FLAG_SKIP_MULTICAST    0x0004
#define GAA_FLAG_SKIP_DNS_SERVER   0x0008

#endif /* _WINSOCK2API_ */

//
// IP_PER_ADAPTER_INFO - per-adapter IP information such as DNS server list.
//

typedef struct _IP_PER_ADAPTER_INFO {
    UINT AutoconfigEnabled;
    UINT AutoconfigActive;
    PIP_ADDR_STRING CurrentDnsServer;
    IP_ADDR_STRING DnsServerList;
} IP_PER_ADAPTER_INFO, *PIP_PER_ADAPTER_INFO;

//
// FIXED_INFO - the set of IP-related information which does not depend on DHCP
//

typedef struct {
    char HostName[MAX_HOSTNAME_LEN + 4] ;
    char DomainName[MAX_DOMAIN_NAME_LEN + 4];
    PIP_ADDR_STRING CurrentDnsServer;
    IP_ADDR_STRING DnsServerList;
    UINT NodeType;
    char ScopeId[MAX_SCOPE_ID_LEN + 4];
    UINT EnableRouting;
    UINT EnableProxy;
    UINT EnableDns;
} FIXED_INFO, *PFIXED_INFO;

#pragma warning(default:4201)

#ifdef __cplusplus
}
#endif

#endif

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author


| Advertise | Privacy | Terms of Use | Mobile
Web04 | 2.8.141223.1 | Last Updated 10 Feb 2005
Article Copyright 2005 by Hatem Mostafa
Everything else Copyright © CodeProject, 1999-2014
Layout: fixed | fluid