28e2075280
trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
121 lines
4.0 KiB
C++
121 lines
4.0 KiB
C++
/*
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* libjingle
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* Copyright 2004--2005, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_BASE_WINPING_H__
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#define TALK_BASE_WINPING_H__
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#ifdef WIN32
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#include "talk/base/win32.h"
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#include "talk/base/basictypes.h"
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#include "talk/base/IPAddress.h"
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namespace talk_base {
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// This class wraps a Win32 API for doing ICMP pinging. This API, unlike the
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// the normal socket APIs (as implemented on Win9x), will return an error if
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// an ICMP packet with the dont-fragment bit set is too large. This means this
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// class can be used to detect the MTU to a given address.
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typedef struct ip_option_information {
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UCHAR Ttl; // Time To Live
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UCHAR Tos; // Type Of Service
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UCHAR Flags; // IP header flags
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UCHAR OptionsSize; // Size in bytes of options data
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PUCHAR OptionsData; // Pointer to options data
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} IP_OPTION_INFORMATION, * PIP_OPTION_INFORMATION;
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typedef HANDLE (WINAPI *PIcmpCreateFile)();
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typedef BOOL (WINAPI *PIcmpCloseHandle)(HANDLE icmp_handle);
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typedef HANDLE (WINAPI *PIcmp6CreateFile)();
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typedef BOOL (WINAPI *PIcmp6CloseHandle)(HANDLE icmp_handle);
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typedef DWORD (WINAPI *PIcmpSendEcho)(
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HANDLE IcmpHandle,
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ULONG DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout);
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typedef DWORD (WINAPI *PIcmp6SendEcho2)(
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HANDLE IcmpHandle,
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HANDLE Event,
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FARPROC ApcRoutine,
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PVOID ApcContext,
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struct sockaddr_in6 *SourceAddress,
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struct sockaddr_in6 *DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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);
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class WinPing {
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public:
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WinPing();
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~WinPing();
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// Determines whether the class was initialized correctly.
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bool IsValid() { return valid_; }
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// Attempts to send a ping with the given parameters.
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enum PingResult { PING_FAIL, PING_INVALID_PARAMS,
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PING_TOO_LARGE, PING_TIMEOUT, PING_SUCCESS };
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PingResult Ping(
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IPAddress ip, uint32 data_size, uint32 timeout_millis, uint8 ttl,
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bool allow_fragments);
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private:
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HMODULE dll_;
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HANDLE hping_;
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HANDLE hping6_;
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PIcmpCreateFile create_;
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PIcmpCloseHandle close_;
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PIcmpSendEcho send_;
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PIcmp6CreateFile create6_;
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PIcmp6SendEcho2 send6_;
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char* data_;
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uint32 dlen_;
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char* reply_;
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uint32 rlen_;
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bool valid_;
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};
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} // namespace talk_base
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#endif // WIN32
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#endif // TALK_BASE_WINPING_H__
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