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STABLE14-pioctl-debug-20041003

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Add a new registry value HKLM/SOFTWARE/OpenAFS/Client "IoctlDebug" DWORD
which when set to a non-zero value will output error messages to stderr.
This is to assist in debugging ioctl failures when fs.exe, tokens.exe,
etc. fail because of an inability to open the ioctl file name.


(cherry picked from commit e845efc442)
This commit is contained in:
Jeffrey Altman 2004-10-03 15:07:34 +00:00 committed by Jeffrey Altman
parent 97253c8650
commit 193daef53f
1 changed files with 59 additions and 8 deletions
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67
src/sys/pioctl_nt.c
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@ -150,8 +150,8 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
strcat(tbuffer, SMB_IOCTL_FILENAME_NOSLASH); strcat(tbuffer, SMB_IOCTL_FILENAME_NOSLASH);
} }
} }
} }
if (!tbuffer[0]) { if (!tbuffer[0]) {
/* No file name starting with drive colon specified, use UNC name */ /* No file name starting with drive colon specified, use UNC name */
lana_GetNetbiosName(netbiosName,LANA_NETBIOS_NAME_FULL); lana_GetNetbiosName(netbiosName,LANA_NETBIOS_NAME_FULL);
sprintf(tbuffer,"\\\\%s\\all%s",netbiosName,SMB_IOCTL_FILENAME); sprintf(tbuffer,"\\\\%s\\all%s",netbiosName,SMB_IOCTL_FILENAME);
@ -163,16 +163,43 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_FLAG_WRITE_THROUGH, NULL); FILE_FLAG_WRITE_THROUGH, NULL);
fflush(stdout); fflush(stdout);
if (fh == INVALID_HANDLE_VALUE) { if (fh == INVALID_HANDLE_VALUE) {
HKEY hk; HKEY hk;
char szUser[64] = ""; char szUser[64] = "";
char szClient[MAX_PATH] = ""; char szClient[MAX_PATH] = "";
char szPath[MAX_PATH] = ""; char szPath[MAX_PATH] = "";
NETRESOURCE nr; NETRESOURCE nr;
DWORD res; DWORD res;
DWORD ioctlDebug = 0;
DWORD gle;
if (GetLastError() != ERROR_DOWNGRADE_DETECTED) if (RegOpenKey (HKEY_LOCAL_MACHINE,
return -1; TEXT("Software\\OpenAFS\\Client"), &hk) == 0)
{
DWORD dwSize = sizeof(DWORD);
DWORD dwType = REG_DWORD;
RegQueryValueEx (hk, TEXT("IoctlDebug"), NULL, &dwType, (PBYTE)&ioctlDebug, &dwSize);
RegCloseKey (hk);
}
gle = GetLastError();
if (gle && ioctlDebug ) {
char buf[4096];
if ( FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
gle,
MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),
buf,
4096,
(va_list *) NULL
) )
{
fprintf(stderr,"pioctl CreateFile(%s) failed: [%s]\r\n",tbuffer,buf);
}
}
if (gle != ERROR_DOWNGRADE_DETECTED)
return -1;
lana_GetNetbiosName(szClient, LANA_NETBIOS_NAME_FULL); lana_GetNetbiosName(szClient, LANA_NETBIOS_NAME_FULL);
sprintf(szPath, "\\\\%s", szClient); sprintf(szPath, "\\\\%s", szClient);
@ -186,22 +213,46 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
RegQueryValueEx (hk, TEXT("Logon User Name"), NULL, &dwType, (PBYTE)szUser, &dwSize); RegQueryValueEx (hk, TEXT("Logon User Name"), NULL, &dwType, (PBYTE)szUser, &dwSize);
RegCloseKey (hk); RegCloseKey (hk);
} }
if ( ioctlDebug )
fprintf(stderr, "pioctl logon user: [%s]\r\n",szUser);
memset (&nr, 0x00, sizeof(NETRESOURCE)); memset (&nr, 0x00, sizeof(NETRESOURCE));
nr.dwType=RESOURCETYPE_DISK; nr.dwType=RESOURCETYPE_DISK;
nr.lpLocalName=0; nr.lpLocalName=0;
nr.lpRemoteName=szPath; nr.lpRemoteName=szPath;
res = WNetAddConnection2(&nr,NULL,szUser,0); res = WNetAddConnection2(&nr,NULL,szUser,0);
if (res) if (res) {
if ( ioctlDebug ) {
fprintf(stderr, "pioctl WNetAddConnection2(%s,%s) failed: 0x%X\r\n",
szPath,szUser,res);
}
return -1; return -1;
}
fh = CreateFile(tbuffer, GENERIC_READ | GENERIC_WRITE, fh = CreateFile(tbuffer, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_FLAG_WRITE_THROUGH, NULL); FILE_FLAG_WRITE_THROUGH, NULL);
fflush(stdout); fflush(stdout);
if (fh == INVALID_HANDLE_VALUE) if (fh == INVALID_HANDLE_VALUE) {
gle = GetLastError();
if (gle && ioctlDebug ) {
char buf[4096];
if ( FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
gle,
MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),
buf,
4096,
(va_list *) NULL
) )
{
fprintf(stderr,"pioctl CreateFile(%s) failed: [%s]\r\n",tbuffer,buf);
}
}
return -1; return -1;
} }
}
/* return fh and success code */ /* return fh and success code */
*handlep = fh; *handlep = fh;