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Windows: Make pioctl interface RDR aware

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Permit the pioctl interface to recognize how to interact with
the RDR for processing pioctl operations.

Change-Id: I7ddf15f29661e61fab6439d2a3c1aa2935011559
Reviewed-on: http://gerrit.openafs.org/5436
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Rod Widdowson <rdw@steadingsoftware.com>
Tested-by: Rod Widdowson <rdw@steadingsoftware.com>
Reviewed-by: Jeffrey Altman <jaltman@openafs.org>
Tested-by: Jeffrey Altman <jaltman@openafs.org>
This commit is contained in:
Jeffrey Altman 2011-09-15 01:31:08 -04:00 committed by Jeffrey Altman
parent b418d381be
commit 6e82b5be12
1 changed files with 192 additions and 8 deletions
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200
src/sys/pioctl_nt.c
View File

@ -41,6 +41,9 @@
#include <loadfuncs-krb5.h>
#include <krb5.h>
#include <..\WINNT\afsrdr\common\AFSUserDefines.h>
#include <..\WINNT\afsrdr\common\AFSUserIoctl.h>
#include <..\WINNT\afsrdr\common\AFSUserStructs.h>
static char AFSConfigKeyName[] = AFSREG_CLT_SVC_PARAM_SUBKEY;
@ -55,6 +58,7 @@ typedef struct fs_ioctlRequest {
char data[FS_IOCTLREQUEST_MAXSIZE]; /* data we're marshalling */
} fs_ioctlRequest_t;
static int
CMtoUNIXerror(int cm_code)
{
@ -137,6 +141,111 @@ IoctlDebug(void)
return debug;
}
static BOOL
RDR_Ready(void)
{
HANDLE hDevHandle = NULL;
DWORD bytesReturned;
AFSDriverStatusRespCB *respBuffer = NULL;
DWORD rc = 0;
BOOL ready = FALSE;
hDevHandle = CreateFileW( AFS_SYMLINK_W,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
if( hDevHandle == INVALID_HANDLE_VALUE)
{
DWORD gle = GetLastError();
if (gle && IoctlDebug() ) {
char buf[4096];
int saveerrno;
saveerrno = errno;
if ( FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
gle,
MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),
buf,
4096,
(va_list *) NULL
) )
{
fprintf(stderr,"RDR_Ready CreateFile(%S) failed: 0x%X\r\n\t[%s]\r\n",
AFS_SYMLINK_W,gle,buf);
}
errno = saveerrno;
}
return FALSE;
}
//
// Allocate a response buffer.
//
respBuffer = (AFSDriverStatusRespCB *)malloc( sizeof( AFSDriverStatusRespCB));
if( respBuffer)
{
memset( respBuffer, '\0', sizeof( AFSDriverStatusRespCB));
if( !DeviceIoControl( hDevHandle,
IOCTL_AFS_STATUS_REQUEST,
NULL,
0,
(void *)respBuffer,
sizeof( AFSDriverStatusRespCB),
&bytesReturned,
NULL))
{
//
// Error condition back from driver
//
DWORD gle = GetLastError();
if (gle && IoctlDebug() ) {
char buf[4096];
int saveerrno;
saveerrno = errno;
if ( FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
gle,
MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),
buf,
4096,
(va_list *) NULL
) )
{
fprintf(stderr,"RDR_Ready CreateFile(%s) failed: 0x%X\r\n\t[%s]\r\n",
AFS_SYMLINK,gle,buf);
}
errno = saveerrno;
}
rc = -1;
goto cleanup;
}
if (bytesReturned == sizeof(AFSDriverStatusRespCB))
{
ready = ( respBuffer->Status == AFS_DRIVER_STATUS_READY );
}
} else
rc = ENOMEM;
cleanup:
if (respBuffer)
free( respBuffer);
if (hDevHandle != INVALID_HANDLE_VALUE)
CloseHandle(hDevHandle);
return ready;
}
static BOOL
DisableServiceManagerCheck(void)
{
@ -455,6 +564,7 @@ DriveIsMappedToAFS(char *drivestr, char *NetbiosName)
DWORD i;
BOOL bIsAFS = FALSE;
char subststr[MAX_PATH];
char device[MAX_PATH];
//
// Handle drive letter substitution created with "SUBST <drive> <path>".
@ -474,6 +584,14 @@ DriveIsMappedToAFS(char *drivestr, char *NetbiosName)
drivestr = subststr;
}
//
// Check for \Device\AFSRedirector
//
if (QueryDosDevice(drivestr, device, MAX_PATH) &&
_strnicmp( device, "\\Device\\AFSRedirector", strlen("\\Device\\AFSRedirector")) == 0) {
return TRUE;
}
//
// Call the WNetOpenEnum function to begin the enumeration.
//
@ -573,13 +691,13 @@ DriveIsGlobalAutoMapped(char *drivestr)
static long
GetIoctlHandle(char *fileNamep, HANDLE * handlep)
{
HKEY hk;
char *drivep = NULL;
char netbiosName[MAX_NB_NAME_LENGTH];
char netbiosName[MAX_NB_NAME_LENGTH]="AFS";
DWORD CurrentState = 0;
char HostName[64] = "";
char tbuffer[MAX_PATH]="";
HANDLE fh;
HKEY hk;
char szUser[128] = "";
char szClient[MAX_PATH] = "";
char szPath[MAX_PATH] = "";
@ -588,6 +706,7 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
DWORD ioctlDebug = IoctlDebug();
DWORD gle;
DWORD dwSize = sizeof(szUser);
BOOL usingRDR = FALSE;
int saveerrno;
UINT driveType;
int sharingViolation;
@ -596,11 +715,63 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
gethostname(HostName, sizeof(HostName));
if (!DisableServiceManagerCheck() &&
GetServiceStatus(HostName, TEXT("TransarcAFSDaemon"), &CurrentState) == NOERROR &&
CurrentState != SERVICE_RUNNING)
CurrentState != SERVICE_RUNNING)
{
if ( ioctlDebug ) {
saveerrno = errno;
fprintf(stderr, "pioctl GetServiceStatus(%s) == %d\r\n",
HostName, CurrentState);
errno = saveerrno;
}
return -1;
}
// Populate the Netbios Name
lana_GetNetbiosName(netbiosName,LANA_NETBIOS_NAME_FULL);
if (RDR_Ready()) {
usingRDR = TRUE;
if ( ioctlDebug ) {
saveerrno = errno;
fprintf(stderr, "pioctl Redirector is ready\r\n");
errno = saveerrno;
}
if (RegOpenKey (HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY, &hk) == 0)
{
DWORD dwSize = sizeof(netbiosName);
DWORD dwType = REG_SZ;
RegQueryValueExA (hk, "NetbiosName", NULL, &dwType, (PBYTE)netbiosName, &dwSize);
RegCloseKey (hk);
if ( ioctlDebug ) {
saveerrno = errno;
fprintf(stderr, "pioctl NetbiosName = \"%s\"\r\n", netbiosName);
errno = saveerrno;
}
} else {
if ( ioctlDebug ) {
saveerrno = errno;
gle = GetLastError();
fprintf(stderr, "pioctl Unable to open \"HKLM\\%s\" using NetbiosName = \"AFS\" GLE=0x%x\r\n",
HostName, CurrentState, gle);
errno = saveerrno;
}
}
} else {
if ( ioctlDebug ) {
saveerrno = errno;
fprintf(stderr, "pioctl Redirector is not ready\r\n");
errno = saveerrno;
}
if (!GetEnvironmentVariable("AFS_PIOCTL_SERVER", netbiosName, sizeof(netbiosName)))
lana_GetNetbiosName(netbiosName,LANA_NETBIOS_NAME_FULL);
if ( ioctlDebug ) {
saveerrno = errno;
fprintf(stderr, "pioctl NetbiosName = \"%s\"\r\n", netbiosName);
errno = saveerrno;
}
}
if (fileNamep) {
drivep = strchr(fileNamep, ':');
@ -690,6 +861,12 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
sprintf(tbuffer,"\\\\%s\\all%s",netbiosName,SMB_IOCTL_FILENAME);
}
if ( ioctlDebug ) {
saveerrno = errno;
fprintf(stderr, "pioctl filename = \"%s\"\r\n", tbuffer);
errno = saveerrno;
}
fflush(stdout);
/* now open the file */
sharingViolation = 0;
@ -732,7 +909,12 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
GetLastError() != ERROR_SHARING_VIOLATION) {
int gonext = 0;
lana_GetNetbiosName(szClient, LANA_NETBIOS_NAME_FULL);
/* with the redirector interface, fail immediately. there is nothing to retry */
if (usingRDR)
return -1;
if (!GetEnvironmentVariable("AFS_PIOCTL_SERVER", szClient, sizeof(szClient)))
lana_GetNetbiosName(szClient, LANA_NETBIOS_NAME_FULL);
if (RegOpenKey (HKEY_CURRENT_USER,
TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer"), &hk) == 0)
@ -817,7 +999,8 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
}
try_lsa_principal:
if (fh == INVALID_HANDLE_VALUE &&
if (!usingRDR &&
fh == INVALID_HANDLE_VALUE &&
GetLastError() != ERROR_SHARING_VIOLATION) {
int gonext = 0;
@ -897,7 +1080,8 @@ GetIoctlHandle(char *fileNamep, HANDLE * handlep)
}
try_sam_compat:
if (fh == INVALID_HANDLE_VALUE &&
if (!usingRDR &&
fh == INVALID_HANDLE_VALUE &&
GetLastError() != ERROR_SHARING_VIOLATION) {
dwSize = sizeof(szUser);
if (GetUserNameEx(NameSamCompatible, szUser, &dwSize)) {