r23726: Explicitly pass down the FLAGS2 field to srvstr_pull_buf. The next

checkin will pull this up to srvstr_get_path. At that point we can get more
independent of the inbuf, the base_ptr in pull_string will only be used
to satisfy UCS2 alignment constraints.

13 files changed, 99 insertions, 53 deletions

diff --git a/source/include/safe_string.h b/source/include/safe_string.h
index d278e29aca5..3a732e11e1f 100644
--- a/source/include/safe_string.h
+++ b/source/include/safe_string.h
@@ -164,7 +164,7 @@ size_t __unsafe_string_function_usage_here_char__(void);
 #define safe_strcpy(dest,src,maxlength)	safe_strcpy_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE,dest,src,maxlength)
 #define safe_strcat(dest,src,maxlength)	safe_strcat_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE,dest,src,maxlength)
 #define push_string(base_ptr, dest, src, dest_len, flags) push_string_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE, base_ptr, dest, src, dest_len, flags)
-#define pull_string(base_ptr, dest, src, dest_len, src_len, flags) pull_string_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE, base_ptr, dest, src, dest_len, src_len, flags)
+#define pull_string(base_ptr, smb_flags2, dest, src, dest_len, src_len, flags) pull_string_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE, base_ptr, smb_flags2, dest, src, dest_len, src_len, flags)
 #define clistr_push(cli, dest, src, dest_len, flags) clistr_push_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE, cli, dest, src, dest_len, flags)
 #define clistr_pull(cli, dest, src, dest_len, src_len, flags) clistr_pull_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE, cli, dest, src, dest_len, src_len, flags)
 #define srvstr_push(base_ptr, dest, src, dest_len, flags) srvstr_push_fn2(SAFE_STRING_FUNCTION_NAME, SAFE_STRING_LINE, base_ptr, dest, src, dest_len, flags)
@@ -193,10 +193,10 @@ size_t __unsafe_string_function_usage_here_char__(void);
     ? __unsafe_string_function_usage_here_size_t__() \
     : push_string_fn(fn_name, fn_line, base_ptr, dest, src, dest_len, flags))
 
-#define pull_string_fn2(fn_name, fn_line, base_ptr, dest, src, dest_len, src_len, flags) \
+#define pull_string_fn2(fn_name, fn_line, base_ptr, smb_flags2, dest, src, dest_len, src_len, flags) \
     (CHECK_STRING_SIZE(dest, dest_len) \
     ? __unsafe_string_function_usage_here_size_t__() \
-    : pull_string_fn(fn_name, fn_line, base_ptr, dest, src, dest_len, src_len, flags))
+    : pull_string_fn(fn_name, fn_line, base_ptr, smb_flags2, dest, src, dest_len, src_len, flags))
 
 #define clistr_push_fn2(fn_name, fn_line, cli, dest, src, dest_len, flags) \
     (CHECK_STRING_SIZE(dest, dest_len) \
diff --git a/source/include/srvstr.h b/source/include/srvstr.h
index 1029df53aee..99a7407a6a2 100644
--- a/source/include/srvstr.h
+++ b/source/include/srvstr.h
@@ -18,14 +18,14 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-#define srvstr_pull(base_ptr, dest, src, dest_len, src_len, flags) \
-    pull_string(base_ptr, dest, src, dest_len, src_len, flags)
+#define srvstr_pull(base_ptr, smb_flags2, dest, src, dest_len, src_len, flags) \
+    pull_string(base_ptr, smb_flags2, dest, src, dest_len, src_len, flags)
 
 /* pull a string from the smb_buf part of a packet. In this case the
    string can either be null terminated or it can be terminated by the
    end of the smbbuf area 
 */
 
-#define srvstr_pull_buf(inbuf, dest, src, dest_len, flags) \
-    pull_string(inbuf, dest, src, dest_len, smb_bufrem(inbuf, src), flags)
+#define srvstr_pull_buf(inbuf, smb_flags2, dest, src, dest_len, flags) \
+    pull_string(inbuf, smb_flags2, dest, src, dest_len, smb_bufrem(inbuf, src), flags)
 
diff --git a/source/lib/charcnv.c b/source/lib/charcnv.c
index 35343b2f0a2..5ca7f201c24 100644
--- a/source/lib/charcnv.c
+++ b/source/lib/charcnv.c
@@ -1376,16 +1376,24 @@ size_t push_string_fn(const char *function, unsigned int line, const void *base_
  The resulting string in "dest" is always null terminated.
 **/
 
-size_t pull_string_fn(const char *function, unsigned int line, const void *base_ptr, char *dest, const void *src, size_t dest_len, size_t src_len, int flags)
+size_t pull_string_fn(const char *function, unsigned int line,
+		      const void *base_ptr, uint16 smb_flags2, char *dest,
+		      const void *src, size_t dest_len, size_t src_len,
+		      int flags)
 {
 #ifdef DEVELOPER
 	if (dest_len != (size_t)-1)
 		clobber_region(function, line, dest, dest_len);
 #endif
 
+	if ((base_ptr == NULL) && ((flags & (STR_ASCII|STR_UNICODE)) == 0)) {
+		smb_panic("No base ptr to get flg2 and neither ASCII nor "
+			  "UNICODE defined");
+	}
+
 	if (!(flags & STR_ASCII) && \
 	    ((flags & STR_UNICODE || \
-	      (SVAL(base_ptr, smb_flg2) & FLAGS2_UNICODE_STRINGS)))) {
+	      (smb_flags2 & FLAGS2_UNICODE_STRINGS)))) {
 		return pull_ucs2(base_ptr, dest, src, dest_len, src_len, flags);
 	}
 	return pull_ascii(dest, src, dest_len, src_len, flags);
diff --git a/source/libsmb/clistr.c b/source/libsmb/clistr.c
index 6191f99ea96..4d18434ff95 100644
--- a/source/libsmb/clistr.c
+++ b/source/libsmb/clistr.c
@@ -43,7 +43,9 @@ size_t clistr_pull_fn(const char *function, unsigned int line,
 		   int dest_len, int src_len, 
 		   int flags)
 {
-	return pull_string_fn(function, line, cli->inbuf, dest, src, dest_len, src_len, flags);
+	return pull_string_fn(function, line, cli->inbuf,
+			      SVAL(cli->inbuf, smb_flg2), dest, src, dest_len,
+			      src_len, flags);
 }
 
 
diff --git a/source/libsmb/ntlmssp_parse.c b/source/libsmb/ntlmssp_parse.c
index 3d96fa5f1a7..a3977dbc010 100644
--- a/source/libsmb/ntlmssp_parse.c
+++ b/source/libsmb/ntlmssp_parse.c
@@ -220,9 +220,10 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
 					return False;
 
 				if (0 < len1) {
-					pull_string(NULL, p, blob->data + ptr, sizeof(p), 
-						    len1, 
-						    STR_UNICODE|STR_NOALIGN);
+					pull_string(
+						NULL, 0, p,
+						blob->data + ptr, sizeof(p),
+						len1, STR_UNICODE|STR_NOALIGN);
 					(*ps) = smb_xstrdup(p);
 				} else {
 					(*ps) = smb_xstrdup("");
@@ -248,9 +249,10 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
 					return False;	
 
 				if (0 < len1) {
-					pull_string(NULL, p, blob->data + ptr, sizeof(p), 
-						    len1, 
-						    STR_ASCII|STR_NOALIGN);
+					pull_string(
+						NULL, 0, p,
+						blob->data + ptr, sizeof(p),
+						len1, STR_ASCII|STR_NOALIGN);
 					(*ps) = smb_xstrdup(p);
 				} else {
 					(*ps) = smb_xstrdup("");
@@ -300,9 +302,10 @@ BOOL msrpc_parse(const DATA_BLOB *blob,
 			if (blob->data + head_ofs < (uint8 *)head_ofs || blob->data + head_ofs < blob->data)
 				return False;	
 	
-			head_ofs += pull_string(NULL, p, blob->data+head_ofs, sizeof(p), 
-						blob->length - head_ofs, 
-						STR_ASCII|STR_TERMINATE);
+			head_ofs += pull_string(
+				NULL, 0, p, blob->data+head_ofs, sizeof(p),
+				blob->length - head_ofs,
+				STR_ASCII|STR_TERMINATE);
 			if (strcmp(s, p) != 0) {
 				return False;
 			}
diff --git a/source/libsmb/smbencrypt.c b/source/libsmb/smbencrypt.c
index 25861289669..4e8c5066a82 100644
--- a/source/libsmb/smbencrypt.c
+++ b/source/libsmb/smbencrypt.c
@@ -555,7 +555,8 @@ BOOL decode_pw_buffer(uint8 in_buffer[516], char *new_pwrd,
 	}
 
 	/* decode into the return buffer.  Buffer length supplied */
- 	*new_pw_len = pull_string(NULL, new_pwrd, &in_buffer[512 - byte_len], new_pwrd_size, 
+	*new_pw_len = pull_string(NULL, 0, new_pwrd,
+				  &in_buffer[512 - byte_len], new_pwrd_size,
 				  byte_len, string_flags);
 
 #ifdef DEBUG_PASSWORD
diff --git a/source/smbd/ipc.c b/source/smbd/ipc.c
index 6b647fc72b6..ce26b53e1b9 100644
--- a/source/smbd/ipc.c
+++ b/source/smbd/ipc.c
@@ -543,8 +543,8 @@ int reply_trans(connection_struct *conn,
 	state->one_way = BITSETW(inbuf+smb_vwv5,1);
 
 	memset(state->name, '\0',sizeof(state->name));
-	srvstr_pull_buf(inbuf, state->name, smb_buf(inbuf),
-			sizeof(state->name), STR_TERMINATE);
+	srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), state->name,
+			smb_buf(inbuf), sizeof(state->name), STR_TERMINATE);
 	
 	if ((dscnt > state->total_data) || (pscnt > state->total_param))
 		goto bad_param;
diff --git a/source/smbd/message.c b/source/smbd/message.c
index e6a5015276c..f390e539b05 100644
--- a/source/smbd/message.c
+++ b/source/smbd/message.c
@@ -134,8 +134,10 @@ int reply_sends(connection_struct *conn, char *inbuf,char *outbuf, int dum_size,
 	outsize = set_message(inbuf,outbuf,0,0,True);
 
 	p = smb_buf(inbuf)+1;
-	p += srvstr_pull_buf(inbuf, msgfrom, p, sizeof(msgfrom), STR_ASCII|STR_TERMINATE) + 1;
-	p += srvstr_pull_buf(inbuf, msgto, p, sizeof(msgto), STR_ASCII|STR_TERMINATE) + 1;
+	p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), msgfrom, p,
+			     sizeof(msgfrom), STR_ASCII|STR_TERMINATE) + 1;
+	p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), msgto, p,
+			     sizeof(msgto), STR_ASCII|STR_TERMINATE) + 1;
 
 	msg = p;
 
@@ -176,8 +178,10 @@ int reply_sendstrt(connection_struct *conn, char *inbuf,char *outbuf, int dum_si
 	msgpos = 0;
 
 	p = smb_buf(inbuf)+1;
-	p += srvstr_pull_buf(inbuf, msgfrom, p, sizeof(msgfrom), STR_ASCII|STR_TERMINATE) + 1;
-	p += srvstr_pull_buf(inbuf, msgto, p, sizeof(msgto), STR_ASCII|STR_TERMINATE) + 1;
+	p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), msgfrom, p,
+			     sizeof(msgfrom), STR_ASCII|STR_TERMINATE) + 1;
+	p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), msgto, p,
+			     sizeof(msgto), STR_ASCII|STR_TERMINATE) + 1;
 
 	DEBUG( 3, ( "SMBsendstrt (from %s to %s)\n", msgfrom, msgto ) );
 
diff --git a/source/smbd/nttrans.c b/source/smbd/nttrans.c
index 7e17e3b9380..782c90cba1f 100644
--- a/source/smbd/nttrans.c
+++ b/source/smbd/nttrans.c
@@ -382,7 +382,8 @@ static int do_ntcreate_pipe_open(connection_struct *conn,
 	char *p = NULL;
 	uint32 flags = IVAL(inbuf,smb_ntcreate_Flags);
 
-	srvstr_pull_buf(inbuf, fname, smb_buf(inbuf), sizeof(fname), STR_TERMINATE);
+	srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), fname, smb_buf(inbuf),
+			sizeof(fname), STR_TERMINATE);
 
 	if ((ret = nt_open_pipe(fname, conn, inbuf, outbuf, &pnum)) != 0) {
 		return ret;
diff --git a/source/smbd/pipes.c b/source/smbd/pipes.c
index aba2fe69c59..1da2f0c22f4 100644
--- a/source/smbd/pipes.c
+++ b/source/smbd/pipes.c
@@ -65,7 +65,8 @@ int reply_open_pipe_and_X(connection_struct *conn,
 	int i;
 
 	/* XXXX we need to handle passed times, sattr and flags */
-	srvstr_pull_buf(inbuf, pipe_name, smb_buf(inbuf), sizeof(pipe_name), STR_TERMINATE);
+	srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), pipe_name,
+			smb_buf(inbuf), sizeof(pipe_name), STR_TERMINATE);
 
 	/* If the name doesn't start \PIPE\ then this is directed */
 	/* at a mailslot or something we really, really don't understand, */
diff --git a/source/smbd/reply.c b/source/smbd/reply.c
index 76265ed464b..ac06f2fd6d3 100644
--- a/source/smbd/reply.c
+++ b/source/smbd/reply.c
@@ -218,9 +218,11 @@ size_t srvstr_get_path_wcard(char *inbuf, char *dest, const char *src, size_t de
 #endif
 
 	if (src_len == 0) {
-		ret = srvstr_pull_buf( inbuf, dest, src, dest_len, flags);
+		ret = srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), dest, src,
+				      dest_len, flags);
 	} else {
-		ret = srvstr_pull( inbuf, dest, src, dest_len, src_len, flags);
+		ret = srvstr_pull(inbuf, SVAL(inbuf, smb_flg2), dest, src,
+				  dest_len, src_len, flags);
 	}
 
 	*contains_wcard = False;
@@ -255,9 +257,11 @@ size_t srvstr_get_path(char *inbuf, char *dest, const char *src, size_t dest_len
 #endif
 
 	if (src_len == 0) {
-		ret = srvstr_pull_buf( inbuf, dest, src, dest_len, flags);
+		ret = srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), dest, src,
+				      dest_len, flags);
 	} else {
-		ret = srvstr_pull( inbuf, dest, src, dest_len, src_len, flags);
+		ret = srvstr_pull(inbuf, SVAL(inbuf, smb_flg2), dest, src,
+				  dest_len, src_len, flags);
 	}
 
 	if (SVAL(inbuf,smb_flg2) & FLAGS2_DFS_PATHNAMES) {
@@ -391,10 +395,13 @@ int reply_tcon(connection_struct *conn,
 	*service_buf = *password = *dev = 0;
 
 	p = smb_buf(inbuf)+1;
-	p += srvstr_pull_buf(inbuf, service_buf, p, sizeof(service_buf), STR_TERMINATE) + 1;
-	pwlen = srvstr_pull_buf(inbuf, password, p, sizeof(password), STR_TERMINATE) + 1;
+	p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), service_buf, p,
+			     sizeof(service_buf), STR_TERMINATE) + 1;
+	pwlen = srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), password, p,
+				sizeof(password), STR_TERMINATE) + 1;
 	p += pwlen;
-	p += srvstr_pull_buf(inbuf, dev, p, sizeof(dev), STR_TERMINATE) + 1;
+	p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), dev, p, sizeof(dev),
+			     STR_TERMINATE) + 1;
 
 	p = strrchr_m(service_buf,'\\');
 	if (p) {
@@ -478,7 +485,8 @@ int reply_tcon_and_X(connection_struct *conn, char *inbuf,char *outbuf,int lengt
 		p = smb_buf(inbuf) + passlen + 1;
 	}
 
-	p += srvstr_pull_buf(inbuf, path, p, sizeof(path), STR_TERMINATE);
+	p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), path, p,
+			     sizeof(path), STR_TERMINATE);
 
 	/*
 	 * the service name can be either: \\server\share
@@ -495,7 +503,8 @@ int reply_tcon_and_X(connection_struct *conn, char *inbuf,char *outbuf,int lengt
 	else
 		fstrcpy(service,path);
 		
-	p += srvstr_pull(inbuf, client_devicetype, p, sizeof(client_devicetype), 6, STR_ASCII);
+	p += srvstr_pull(inbuf, SVAL(inbuf, smb_flg2), client_devicetype, p,
+			 sizeof(client_devicetype), 6, STR_ASCII);
 
 	DEBUG(4,("Client requested device type [%s] for share [%s]\n", client_devicetype, service));
 
diff --git a/source/smbd/sesssetup.c b/source/smbd/sesssetup.c
index 22c598a6547..3ed338bda7f 100644
--- a/source/smbd/sesssetup.c
+++ b/source/smbd/sesssetup.c
@@ -1057,9 +1057,12 @@ static int reply_sesssetup_and_X_spnego(connection_struct *conn, char *inbuf,
 #endif
 
 	p2 = inbuf + smb_vwv13 + data_blob_len;
-	p2 += srvstr_pull_buf(inbuf, native_os, p2, sizeof(native_os), STR_TERMINATE);
-	p2 += srvstr_pull_buf(inbuf, native_lanman, p2, sizeof(native_lanman), STR_TERMINATE);
-	p2 += srvstr_pull_buf(inbuf, primary_domain, p2, sizeof(primary_domain), STR_TERMINATE);
+	p2 += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), native_os, p2,
+			      sizeof(native_os), STR_TERMINATE);
+	p2 += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), native_lanman, p2,
+			      sizeof(native_lanman), STR_TERMINATE);
+	p2 += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), primary_domain, p2,
+			      sizeof(primary_domain), STR_TERMINATE);
 	DEBUG(3,("NativeOS=[%s] NativeLanMan=[%s] PrimaryDomain=[%s]\n", 
 		native_os, native_lanman, primary_domain));
 
@@ -1283,7 +1286,9 @@ int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
 			plaintext_password.data[passlen1] = 0;
 		}
 
-		srvstr_pull_buf(inbuf, user, smb_buf(inbuf)+passlen1, sizeof(user), STR_TERMINATE);
+		srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), user,
+				smb_buf(inbuf)+passlen1, sizeof(user),
+				STR_TERMINATE);
 		*domain = 0;
 
 	} else {
@@ -1363,21 +1368,28 @@ int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
 
 			if (unic && (passlen2 == 0) && passlen1) {
 				/* Only a ascii plaintext password was sent. */
-				srvstr_pull(inbuf, pass, smb_buf(inbuf), sizeof(pass),
-					passlen1, STR_TERMINATE|STR_ASCII);
+				srvstr_pull(inbuf, SVAL(inbuf, smb_flg2), pass,
+					    smb_buf(inbuf), sizeof(pass),
+					    passlen1, STR_TERMINATE|STR_ASCII);
 			} else {
-				srvstr_pull(inbuf, pass, smb_buf(inbuf), 
-					sizeof(pass),  unic ? passlen2 : passlen1, 
-					STR_TERMINATE);
+				srvstr_pull(inbuf, SVAL(inbuf, smb_flg2), pass,
+					    smb_buf(inbuf), sizeof(pass),
+					    unic ? passlen2 : passlen1,
+					    STR_TERMINATE);
 			}
 			plaintext_password = data_blob(pass, strlen(pass)+1);
 		}
 		
 		p += passlen1 + passlen2;
-		p += srvstr_pull_buf(inbuf, user, p, sizeof(user), STR_TERMINATE);
-		p += srvstr_pull_buf(inbuf, domain, p, sizeof(domain), STR_TERMINATE);
-		p += srvstr_pull_buf(inbuf, native_os, p, sizeof(native_os), STR_TERMINATE);
-		p += srvstr_pull_buf(inbuf, native_lanman, p, sizeof(native_lanman), STR_TERMINATE);
+		p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), user, p,
+				     sizeof(user), STR_TERMINATE);
+		p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), domain, p,
+				     sizeof(domain), STR_TERMINATE);
+		p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2), native_os,
+				     p, sizeof(native_os), STR_TERMINATE);
+		p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2),
+				     native_lanman, p, sizeof(native_lanman),
+				     STR_TERMINATE);
 
 		/* not documented or decoded by Ethereal but there is one more string 
 		   in the extra bytes which is the same as the PrimaryDomain when using 
@@ -1387,7 +1399,10 @@ int reply_sesssetup_and_X(connection_struct *conn, char *inbuf,char *outbuf,
 		
 		byte_count = SVAL(inbuf, smb_vwv13);
 		if ( PTR_DIFF(p, save_p) < byte_count)
-			p += srvstr_pull_buf(inbuf, primary_domain, p, sizeof(primary_domain), STR_TERMINATE);
+			p += srvstr_pull_buf(inbuf, SVAL(inbuf, smb_flg2),
+					     primary_domain, p,
+					     sizeof(primary_domain),
+					     STR_TERMINATE);
 		else 
 			fstrcpy( primary_domain, "null" );
 
diff --git a/source/smbd/trans2.c b/source/smbd/trans2.c
index 8d4f505e096..2219ebd1c1c 100644
--- a/source/smbd/trans2.c
+++ b/source/smbd/trans2.c
@@ -4530,7 +4530,8 @@ static NTSTATUS smb_set_file_unix_link(connection_struct *conn,
 		return NT_STATUS_ACCESS_DENIED;
 	}
 
-	srvstr_pull(inbuf, link_target, pdata, sizeof(link_target), total_data, STR_TERMINATE);
+	srvstr_pull(inbuf, SVAL(inbuf, smb_flg2), link_target, pdata,
+		    sizeof(link_target), total_data, STR_TERMINATE);
 
 	/* !widelinks forces the target path to be within the share. */
 	/* This means we can interpret the target as a pathname. */
@@ -6366,7 +6367,8 @@ static int call_trans2getdfsreferral(connection_struct *conn, char* inbuf, char*
 	if(!lp_host_msdfs())
 		return ERROR_DOS(ERRDOS,ERRbadfunc);
 
-	srvstr_pull(inbuf, pathname, &params[2], sizeof(pathname), total_params - 2, STR_TERMINATE);
+	srvstr_pull(inbuf, SVAL(inbuf, smb_flg2), pathname, &params[2],
+		    sizeof(pathname), total_params - 2, STR_TERMINATE);
 	if((reply_size = setup_dfs_referral(conn, pathname,max_referral_level,ppdata,&status)) < 0)
 		return ERROR_NT(status);