1f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch/* 2f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * libjingle 3f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * Copyright 2004--2005, Google Inc. 4f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 5f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * Redistribution and use in source and binary forms, with or without 6f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * modification, are permitted provided that the following conditions are met: 7f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 8f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 1. Redistributions of source code must retain the above copyright notice, 9f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * this list of conditions and the following disclaimer. 10f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 2. Redistributions in binary form must reproduce the above copyright notice, 11f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * this list of conditions and the following disclaimer in the documentation 12f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * and/or other materials provided with the distribution. 13f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 3. The name of the author may not be used to endorse or promote products 14f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * derived from this software without specific prior written permission. 15f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * 16f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch */ 27f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 28f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#ifndef TALK_BASE_WINPING_H__ 29f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#define TALK_BASE_WINPING_H__ 30f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 31f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#ifdef WIN32 32f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 33f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#include "talk/base/win32.h" 34f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#include "talk/base/basictypes.h" 35f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 36f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochnamespace talk_base { 37f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 38f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch// This class wraps a Win32 API for doing ICMP pinging. This API, unlike the 39f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch// the normal socket APIs (as implemented on Win9x), will return an error if 40f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch// an ICMP packet with the dont-fragment bit set is too large. This means this 41f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch// class can be used to detect the MTU to a given address. 42f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 43f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochtypedef struct ip_option_information { 44f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch UCHAR Ttl; // Time To Live 45f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch UCHAR Tos; // Type Of Service 46f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch UCHAR Flags; // IP header flags 47f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch UCHAR OptionsSize; // Size in bytes of options data 48f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch PUCHAR OptionsData; // Pointer to options data 49f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} IP_OPTION_INFORMATION, * PIP_OPTION_INFORMATION; 50f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 51f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochtypedef HANDLE (WINAPI *PIcmpCreateFile)(); 52f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 53f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochtypedef BOOL (WINAPI *PIcmpCloseHandle)(HANDLE icmp_handle); 54f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 55f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochtypedef DWORD (WINAPI *PIcmpSendEcho)( 56f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch HANDLE IcmpHandle, 57f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ULONG DestinationAddress, 58f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch LPVOID RequestData, 59f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch WORD RequestSize, 60f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch PIP_OPTION_INFORMATION RequestOptions, 61f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch LPVOID ReplyBuffer, 62f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch DWORD ReplySize, 63f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch DWORD Timeout); 64f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 65f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochclass WinPing { 66f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochpublic: 67f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch WinPing(); 68f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch ~WinPing(); 69f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 70f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch // Determines whether the class was initialized correctly. 71f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch bool IsValid() { return valid_; } 72f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 73f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch // Attempts to send a ping with the given parameters. 74f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch enum PingResult { PING_FAIL, PING_TOO_LARGE, PING_TIMEOUT, PING_SUCCESS }; 75f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch PingResult Ping( 76f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch uint32 ip, uint32 data_size, uint32 timeout_millis, uint8 ttl, 77f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch bool allow_fragments); 78f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 79f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdochprivate: 80f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch HMODULE dll_; 81f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch HANDLE hping_; 82f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch PIcmpCreateFile create_; 83f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch PIcmpCloseHandle close_; 84f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch PIcmpSendEcho send_; 85f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch char* data_; 86f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch uint32 dlen_; 87f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch char* reply_; 88f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch uint32 rlen_; 89f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch bool valid_; 90f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch}; 91f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 92f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch} // namespace talk_base 93f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 94f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#endif // WIN32 95f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 96f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch#endif // TALK_BASE_WINPING_H__ 97f74420b3285b9fe04a7e00aa3b8c0ab07ea344bcBen Murdoch 98