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| 1 /* | |
| 2 * Copyright 2004 The WebRTC Project Authors. All rights reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef WEBRTC_BASE_WINPING_H__ | |
| 12 #define WEBRTC_BASE_WINPING_H__ | |
| 13 | |
| 14 #if defined(WEBRTC_WIN) | |
| 15 | |
| 16 #include "webrtc/base/win32.h" | |
| 17 #include "webrtc/base/basictypes.h" | |
| 18 #include "webrtc/base/ipaddress.h" | |
| 19 | |
| 20 namespace rtc { | |
| 21 | |
| 22 // This class wraps a Win32 API for doing ICMP pinging. This API, unlike the | |
| 23 // the normal socket APIs (as implemented on Win9x), will return an error if | |
| 24 // an ICMP packet with the dont-fragment bit set is too large. This means this | |
| 25 // class can be used to detect the MTU to a given address. | |
| 26 | |
| 27 typedef struct ip_option_information { | |
| 28 UCHAR Ttl; // Time To Live | |
| 29 UCHAR Tos; // Type Of Service | |
| 30 UCHAR Flags; // IP header flags | |
| 31 UCHAR OptionsSize; // Size in bytes of options data | |
| 32 PUCHAR OptionsData; // Pointer to options data | |
| 33 } IP_OPTION_INFORMATION, * PIP_OPTION_INFORMATION; | |
| 34 | |
| 35 typedef HANDLE (WINAPI *PIcmpCreateFile)(); | |
| 36 | |
| 37 typedef BOOL (WINAPI *PIcmpCloseHandle)(HANDLE icmp_handle); | |
| 38 | |
| 39 typedef HANDLE (WINAPI *PIcmp6CreateFile)(); | |
| 40 | |
| 41 typedef BOOL (WINAPI *PIcmp6CloseHandle)(HANDLE icmp_handle); | |
| 42 | |
| 43 typedef DWORD (WINAPI *PIcmpSendEcho)( | |
| 44 HANDLE IcmpHandle, | |
| 45 ULONG DestinationAddress, | |
| 46 LPVOID RequestData, | |
| 47 WORD RequestSize, | |
| 48 PIP_OPTION_INFORMATION RequestOptions, | |
| 49 LPVOID ReplyBuffer, | |
| 50 DWORD ReplySize, | |
| 51 DWORD Timeout); | |
| 52 | |
| 53 typedef DWORD (WINAPI *PIcmp6SendEcho2)( | |
| 54 HANDLE IcmpHandle, | |
| 55 HANDLE Event, | |
| 56 FARPROC ApcRoutine, | |
| 57 PVOID ApcContext, | |
| 58 struct sockaddr_in6 *SourceAddress, | |
| 59 struct sockaddr_in6 *DestinationAddress, | |
| 60 LPVOID RequestData, | |
| 61 WORD RequestSize, | |
| 62 PIP_OPTION_INFORMATION RequestOptions, | |
| 63 LPVOID ReplyBuffer, | |
| 64 DWORD ReplySize, | |
| 65 DWORD Timeout | |
| 66 ); | |
| 67 | |
| 68 class WinPing { | |
| 69 public: | |
| 70 WinPing(); | |
| 71 ~WinPing(); | |
| 72 | |
| 73 // Determines whether the class was initialized correctly. | |
| 74 bool IsValid() { return valid_; } | |
| 75 | |
| 76 // Attempts to send a ping with the given parameters. | |
| 77 enum PingResult { PING_FAIL, PING_INVALID_PARAMS, | |
| 78 PING_TOO_LARGE, PING_TIMEOUT, PING_SUCCESS }; | |
| 79 PingResult Ping(IPAddress ip, | |
| 80 uint32_t data_size, | |
| 81 uint32_t timeout_millis, | |
| 82 uint8_t ttl, | |
| 83 bool allow_fragments); | |
| 84 | |
| 85 private: | |
| 86 HMODULE dll_; | |
| 87 HANDLE hping_; | |
| 88 HANDLE hping6_; | |
| 89 PIcmpCreateFile create_; | |
| 90 PIcmpCloseHandle close_; | |
| 91 PIcmpSendEcho send_; | |
| 92 PIcmp6CreateFile create6_; | |
| 93 PIcmp6SendEcho2 send6_; | |
| 94 char* data_; | |
| 95 uint32_t dlen_; | |
| 96 char* reply_; | |
| 97 uint32_t rlen_; | |
| 98 bool valid_; | |
| 99 }; | |
| 100 | |
| 101 } // namespace rtc | |
| 102 | |
| 103 #endif // WEBRTC_WIN | |
| 104 | |
| 105 #endif // WEBRTC_BASE_WINPING_H__ | |
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Chromium Code Reviews
Issue 2866183004:
Deleted unused method EstimateMTU, and the WinPing class. (Closed)
