Attachment 5603 Details for Bug 7331 – Source for the SMB2 reproduction exe.

Source for the SMB2 reproduction exe.

SMB2_CreateNotify.cpp (text/plain), 2.37 KB, created by Ira Cooper on 2010-04-06 13:22:28 UTC

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Creator: Ira Cooper

Created: 2010-04-06 13:22:28 UTC

Size: 2.37 KB

patch

obsolete

>/*
>
> This test program demonstrates that when a Windows 7 Client box issues a compound 
> SMB2 CREATE/NOTIFY request, the client will time out because it has not recieved any reply 
> for the CREATE request. Samba 3.5 appears to only send an interim reply to the NOTIFY request.
>
> Note: the reason we call GetFileAttributes() first is because this seams to get things in order so the 
> client SMB2 driver will "compound" the CREATE/NOTIFY request precipated by the FindFirstChangeNotification()
> call. If FindFirstChangeNotification() is the only call, then Windows 7 client SMB2 driver doesn't 
> send a compound request and no bug/problem/issue is exposed.
>
> */
>
>#include "stdafx.h"
>#include <windows.h>
>
>int _tmain(int argc, _TCHAR* argv[])
>{
>    if (argc < 2) {
>        printf("usage <program> <path>\n");
>        printf("This test program should be run on an idle Windows 7 box with a\n"); 
>        printf("protocol analyzer like WireShark up and running with\n");
>        printf("the display filter: (smb2 || tcp.flags.reset == 1)\n");
>        printf("Look for a compound CREATE+NOTIFY request from the client to the server\n");
>        printf("Notice no reply, then between 60 and 270 seconds later,\n"); 
>        printf("a disconect (TCP RST) is sent from the client to the server.\n");
>        printf("See source code for details\n");
>        return -1;
>    }
>    if (GetFileAttributes(argv[1]) == 0xFFFFFFFF) {
>        printf("reproduction attempt failed:invalid path\n");
>        return -1;
>    }
>
>    DWORD flags = FILE_NOTIFY_CHANGE_FILE_NAME|FILE_NOTIFY_CHANGE_DIR_NAME|FILE_NOTIFY_CHANGE_ATTRIBUTES|FILE_NOTIFY_CHANGE_SIZE|FILE_NOTIFY_CHANGE_LAST_WRITE;
>
>    HANDLE h = FindFirstChangeNotification(argv[1], 
>                    false, 
>                    flags);
>                
>    if (h == INVALID_HANDLE_VALUE) {
>        printf("reproduction attempt failed:Syserr:%d on %s\n", GetLastError(), argv[1]);
>        return -1;
>    } else {
>        printf("waiting for changes (300 secs) but we don't expect any...\n");      
>        for (int i = 0; i < 300; i++) {
>            if (WaitForSingleObject(h, 1000) == WAIT_OBJECT_0) {
>                printf("reproduction attempt failed:changes occured in %s\n", argv[1]);
>            } else {
>                printf("%i sec\r",i);
>            }
>        }
>    }
>    FindCloseChangeNotification(h);
>    return 0;
>}
>

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