The new msdfs implementation that uses symlinks to point to other

servers. Very intuitive.

Removed the dfs map parsing code and tdb maintenance code (files
msdfs/parse_dfs_map.c & msdfs/msdfs_tdb.c), dfs map loading and unloading
calls (param/loadparm.c smbd/server.c).

Added code to display msdfs format symlinks as directories in a
transact2_findfirst/findnext. (smbd/trans2.c)

Modified msdfs/msdfs.c to use the msdfs symlinks to
create dfs referrals.

Changed msdfs/README to reflect new operability.
(This used to be commit 6803d2574fab9e5931786d5c9aa5dc5867bb5f05)

1 files changed, 328 insertions, 188 deletions

diff --git a/source3/msdfs/msdfs.c b/source3/msdfs/msdfs.c
index aadc63f04e..1f39aa79fd 100644
--- a/source3/msdfs/msdfs.c
+++ b/source3/msdfs/msdfs.c
@@ -27,10 +27,6 @@ extern uint32 global_client_caps;
 
 #ifdef MS_DFS
 
-#define VERSION2_REFERRAL_SIZE 0x16
-#define VERSION3_REFERRAL_SIZE 0x22
-#define REFERRAL_HEADER_SIZE 0x08
-
 static void create_nondfs_path(char* pathname, struct dfs_path* pdp)
 {
   pstrcpy(pathname,pdp->volumename); 
@@ -50,15 +46,6 @@ static BOOL parse_dfs_path(char* pathname, struct dfs_path* pdp)
 
   ZERO_STRUCTP(pdp);
 
-  /* strip off all \'s from the beginning */
-  /* while(*temp=='\\') temp++;
-  
-  DEBUG(10,("temp in parse_dfs_path : .%s.\n",temp));
-
-   remove any trailing \'s 
-  if(temp[strlen(temp)-1] == '\\') temp[strlen(temp)-1]='\0';
-*/
-
   trim_string(temp,"\\","\\");
   DEBUG(10,("temp in parse_dfs_path: .%s. after trimming \\'s\n",temp));
 
@@ -101,6 +88,120 @@ static BOOL parse_dfs_path(char* pathname, struct dfs_path* pdp)
   return True;
 }
 
+/**********************************************************************
+ Parse the contents of a symlink to verify if it is an msdfs referral
+ A valid referral is of the form: msdfs:server1\share1,server2\share2
+ **********************************************************************/
+static BOOL parse_symlink(char* buf,struct referral** preflist, int* refcount)
+{
+  pstring temp;
+  char* prot;
+  char* alt_path[MAX_REFERRAL_COUNT];
+  int count=0, i;
+  struct referral* reflist;
+
+  pstrcpy(temp,buf);
+  
+  prot = strtok(temp,":");
+
+  if(!strequal(prot, "msdfs"))
+    return False;
+
+  /* It's an msdfs referral */
+  if(!preflist) 
+    return True;
+
+  /* parse out the alternate paths */
+  while(((alt_path[count] = strtok(NULL,",")) != NULL) 
+	&& count<MAX_REFERRAL_COUNT)
+    count++;
+
+  DEBUG(10,("parse_symlink: count=%d\n", count));
+  reflist = *preflist = (struct referral*) malloc(count * 
+						  sizeof(struct referral));
+  if(reflist == NULL)
+    {
+      DEBUG(0,("parse_symlink: Malloc failed!\n"));
+      return False;
+    }
+  
+  for(i=0;i<count;i++)
+    {
+      pstrcpy(reflist[i].alternate_path, "\\");
+      pstrcat(reflist[i].alternate_path, alt_path[i]);
+      reflist[i].proximity = 0;
+      reflist[i].ttl = REFERRAL_TTL;
+      DEBUG(10, ("parse_symlink: Created alt path: %s\n",
+		reflist[i].alternate_path));
+    }
+
+  if(refcount)
+    *refcount = count;
+
+  return True;
+}
+ 
+BOOL is_msdfs_volume(connection_struct* conn, char* path)
+{
+  SMB_STRUCT_STAT st;
+  pstring referral;
+
+  if(!path || !conn)
+    return False;
+
+  strlower(path);
+
+  if(conn->vfs_ops.lstat(dos_to_unix(path,False),&st) != 0)
+    {
+      DEBUG(5,("is_msdfs_volume: %s does not exist.\n",path));
+      return False;
+    }
+  
+  if(st.st_mode & S_IFLNK)
+    {
+      /* open the link and read it */
+      readlink(path, referral, sizeof(pstring));
+      DEBUG(5,("is_msdfs_volume: %s -> %s\n",path,referral));
+      if(parse_symlink(referral, NULL, NULL))
+	return True;
+    }
+  return False;
+}
+
+static BOOL get_referred_path(struct junction_map* junction)
+{
+  fstring path;
+  pstring buf;
+  SMB_STRUCT_STAT st;
+  int snum = lp_servicenumber(junction->service_name);
+
+  /* form the path */
+  fstrcpy(path, lp_pathname(snum));
+  fstrcat(path, "/");
+
+  strlower(junction->volume_name);
+
+  fstrcat(path, junction->volume_name);
+
+  DEBUG(5,("get_referred_path: lstat target: %s\n", path));
+  
+  if(lstat(dos_to_unix(path, False),&st) != 0)
+    {
+      DEBUG(5,("get_referred_path: %s does not exist.\n",path));
+      return False;
+    }
+  
+  if(st.st_mode & S_IFLNK)
+    {
+      /* open the link and read it to get the dfs referral */
+      readlink(path, buf, sizeof(buf));
+      DEBUG(5,("get_referred_path: Referral: %s\n",buf));
+      if(parse_symlink(buf, &junction->referral_list, 
+		       &junction->referral_count))
+      return True;
+    }
+  return False;
+}
 
 /**************************************************************
 Decides if given pathname is Dfs and if it should be redirected
@@ -110,10 +211,11 @@ BOOL dfs_redirect(char* pathname, connection_struct* conn)
 {
   struct dfs_path dp;
   pstring temp;
+  fstring path;
 
   pstrcpy(temp,pathname);
 
-  if(lp_dfsmap(SNUM(conn))==NULL || *lp_dfsmap(SNUM(conn))=='\0')
+  if(!lp_msdfs_root(SNUM(conn)) )
     return False;
 
   parse_dfs_path(pathname,&dp);
@@ -122,7 +224,10 @@ BOOL dfs_redirect(char* pathname, connection_struct* conn)
      return False;
 
   /* check if need to redirect */
-  if(isDfsShare(dp.servicename,dp.volumename))
+  fstrcpy(path, conn->connectpath);
+  fstrcat(path, "/");
+  fstrcat(path, dp.volumename);
+  if(is_msdfs_volume(conn, path))
     {
       DEBUG(4,("dfs_redirect: Redirecting %s\n",temp));
       return True;
@@ -167,6 +272,185 @@ BOOL dfs_findfirst_redirect(char* pathname, connection_struct* conn)
     }
 }
 
+static int setup_ver2_dfs_referral(char* pathname, char** ppdata, 
+				   struct junction_map* junction,
+				   BOOL self_referral)
+{
+  char* pdata = *ppdata;
+
+  unsigned char uni_requestedpath[1024];
+  int uni_reqpathoffset1,uni_reqpathoffset2;
+  int uni_curroffset;
+  int requestedpathlen=0;
+  int offset;
+  int reply_size = 0;
+  int i=0;
+
+  DEBUG(10,("setting up version2 referral\nRequested path:\n"));
+
+  requestedpathlen = (dos_struni2(uni_requestedpath,pathname,512)+1)*2;
+
+  dump_data(10,uni_requestedpath,requestedpathlen);
+
+  DEBUG(10,("ref count = %u\n",junction->referral_count));
+
+  uni_reqpathoffset1 = REFERRAL_HEADER_SIZE + 
+    VERSION2_REFERRAL_SIZE * junction->referral_count;
+
+  uni_reqpathoffset2 = uni_reqpathoffset1 + requestedpathlen;
+
+  uni_curroffset = uni_reqpathoffset2 + requestedpathlen;
+
+  reply_size = REFERRAL_HEADER_SIZE + VERSION2_REFERRAL_SIZE*junction->referral_count +
+    2 * requestedpathlen;
+  DEBUG(10,("reply_size: %u\n",reply_size));
+
+  /* add up the unicode lengths of all the referral paths */
+  for(i=0;i<junction->referral_count;i++)
+    {
+      DEBUG(10,("referral %u : %s\n",i,junction->referral_list[i].alternate_path));
+      reply_size += (strlen(junction->referral_list[i].alternate_path)+1)*2;
+    }
+
+  DEBUG(10,("reply_size = %u\n",reply_size));
+  /* add the unexplained 0x16 bytes */
+  reply_size += 0x16;
+
+  pdata = *ppdata = Realloc(pdata,reply_size);
+  if(pdata == NULL)
+    {
+      DEBUG(0,("malloc failed for Realloc!\n"));
+      return -1;
+    }
+
+  /* copy in the dfs requested paths.. required for offset calculations */
+  memcpy(pdata+uni_reqpathoffset1,uni_requestedpath,requestedpathlen);
+  memcpy(pdata+uni_reqpathoffset2,uni_requestedpath,requestedpathlen);
+
+
+  /* create the header */
+  SSVAL(pdata,0,requestedpathlen-2); /* path consumed */
+  SSVAL(pdata,2,junction->referral_count); /* number of referral in this pkt */
+  if(self_referral)
+    SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER); 
+  else
+    SIVAL(pdata,4,DFSREF_STORAGE_SERVER);
+
+  offset = 8;
+  /* add the referral elements */
+  for(i=0;i<junction->referral_count;i++)
+    {
+      struct referral* ref = &(junction->referral_list[i]);
+      int unilen;
+
+      SSVAL(pdata,offset,2); /* version 2 */
+      SSVAL(pdata,offset+2,VERSION2_REFERRAL_SIZE);
+      if(self_referral)
+	SSVAL(pdata,offset+4,1);
+      else
+	SSVAL(pdata,offset+4,0);
+      SSVAL(pdata,offset+6,0); /* ref_flags :use path_consumed bytes? */
+      SIVAL(pdata,offset+8,ref->proximity);
+      SIVAL(pdata,offset+12,ref->ttl);
+	    
+      SSVAL(pdata,offset+16,uni_reqpathoffset1-offset);
+      SSVAL(pdata,offset+18,uni_reqpathoffset2-offset);
+      /* copy referred path into current offset */
+      unilen = (dos_struni2(pdata+uni_curroffset,ref->alternate_path,512)
+		+1)*2;
+      SSVAL(pdata,offset+20,uni_curroffset-offset);
+	    
+      uni_curroffset += unilen;
+      offset += VERSION2_REFERRAL_SIZE;
+    }
+  /* add in the unexplained 22 (0x16) bytes at the end */
+  memset(pdata+uni_curroffset,'\0',0x16);
+  free(junction->referral_list);
+  return reply_size;
+}
+
+static int setup_ver3_dfs_referral(char* pathname, char** ppdata, 
+				   struct junction_map* junction,
+				   BOOL self_referral)
+{
+  char* pdata = *ppdata;
+
+  unsigned char uni_reqpath[1024];
+  int uni_reqpathoffset1, uni_reqpathoffset2;
+  int uni_curroffset;
+  int reply_size = 0;
+
+  int reqpathlen = 0;
+  int offset,i=0;
+	
+  DEBUG(10,("setting up version3 referral\n"));
+
+  reqpathlen = (dos_struni2(uni_reqpath,pathname,512)+1)*2;
+	
+  dump_data(10,uni_reqpath,reqpathlen);
+
+  uni_reqpathoffset1 = REFERRAL_HEADER_SIZE + VERSION3_REFERRAL_SIZE *
+    junction->referral_count;
+  uni_reqpathoffset2 = uni_reqpathoffset1 + reqpathlen;
+  reply_size = uni_curroffset = uni_reqpathoffset2 + reqpathlen;
+
+  for(i=0;i<junction->referral_count;i++)
+    {
+      DEBUG(10,("referral %u : %s\n",i,junction->referral_list[i].alternate_path));
+      reply_size += (strlen(junction->referral_list[i].alternate_path)+1)*2;
+    }
+
+  pdata = *ppdata = Realloc(pdata,reply_size);
+  if(pdata == NULL)
+    {
+      DEBUG(0,("version3 referral setup: malloc failed for Realloc!\n"));
+      return -1;
+    }
+	
+  /* create the header */
+  SSVAL(pdata,0,reqpathlen-2); /* path consumed */
+  SSVAL(pdata,2,junction->referral_count); /* number of referral in this pkt */
+  if(self_referral)
+    SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER); 
+  else
+    SIVAL(pdata,4,DFSREF_STORAGE_SERVER);
+	
+  /* copy in the reqpaths */
+  memcpy(pdata+uni_reqpathoffset1,uni_reqpath,reqpathlen);
+  memcpy(pdata+uni_reqpathoffset2,uni_reqpath,reqpathlen);
+	
+  offset = 8;
+  for(i=0;i<junction->referral_count;i++)
+    {
+      struct referral* ref = &(junction->referral_list[i]);
+      int unilen;
+
+      SSVAL(pdata,offset,3); /* version 3 */
+      SSVAL(pdata,offset+2,VERSION3_REFERRAL_SIZE);
+      if(self_referral)
+	SSVAL(pdata,offset+4,1);
+      else
+	SSVAL(pdata,offset+4,0);
+
+      SSVAL(pdata,offset+6,0); /* ref_flags :use path_consumed bytes? */
+      SIVAL(pdata,offset+8,ref->ttl);
+	    
+      SSVAL(pdata,offset+12,uni_reqpathoffset1-offset);
+      SSVAL(pdata,offset+14,uni_reqpathoffset2-offset);
+      /* copy referred path into current offset */
+      unilen = (dos_struni2(pdata+uni_curroffset,ref->alternate_path,512)
+		+1)*2;
+      SSVAL(pdata,offset+16,uni_curroffset-offset);
+      /* copy 0x10 bytes of 00's in the ServiceSite GUID */
+      memset(pdata+offset+18,'\0',16);
+
+      uni_curroffset += unilen;
+      offset += VERSION3_REFERRAL_SIZE;
+    }
+  free(junction->referral_list);
+  return reply_size;
+}
+
 /******************************************************************
  * Set up the Dfs referral for the dfs pathname
  ******************************************************************/
@@ -179,7 +463,6 @@ int setup_dfs_referral(char* pathname, int max_referral_level,
 
   BOOL self_referral;
 
-  char* pdata = *ppdata;
   int reply_size = 0;
 
   ZERO_STRUCT(junction);
@@ -189,24 +472,24 @@ int setup_dfs_referral(char* pathname, int max_referral_level,
   /* check if path is dfs : check hostname is the first token */
   if(global_myname && (strcasecmp(global_myname,dp.hostname)!=0))
      {
-       DEBUG(4,("Invalid DFS referral request for %s\n",pathname));
+       DEBUG(4,("setup_dfs_referral: Invalid DFS referral request for %s\n",
+		pathname));
        return -1;
      }
 
   /* Check for a non-DFS share */
-  {
-    char* map = lp_dfsmap(lp_servicenumber(dp.servicename));
-    DEBUG(10,("lp_dfsmap in setup dfs referral: .%s.\n",map ));
-    
-    if(map == NULL || (*map == '\0'))
-      return -1;
-  }
+    if(!lp_msdfs_root(lp_servicenumber(dp.servicename)))
+      {
+	DEBUG(4,("setup_dfs_referral: %s is not an msdfs root.\n", 
+		 dp.servicename));
+	return -1;
+      }
 
   pstrcpy(junction.service_name,dp.servicename);
   pstrcpy(junction.volume_name,dp.volumename);
 
   /* get the junction entry */
-  if(!get_junction_entry(&junction))
+  if(!get_referred_path(&junction))
     {
       
       /* refer the same pathname, create a standard referral struct */
@@ -230,7 +513,7 @@ int setup_dfs_referral(char* pathname, int max_referral_level,
       if( DEBUGLVL( 3 ) )
 	{
 	  int i=0;
-	  dbgtext("setup_dfs_referral: Referring client request for %s to alternate path(s):",pathname);
+	  dbgtext("setup_dfs_referral: Path %s to alternate path(s):",pathname);
 	  for(i=0;i<junction.referral_count;i++)
 	    dbgtext(" %s",junction.referral_list[i].alternate_path);
 	  dbgtext(".\n");
@@ -238,185 +521,37 @@ int setup_dfs_referral(char* pathname, int max_referral_level,
     }
       
   /* create the referral depeding on version */
-  DEBUG(10,("MAX_REFERRAL_LEVEL :%d\n",max_referral_level));
+  DEBUG(10,("max_referral_level :%d\n",max_referral_level));
   if(max_referral_level<2 || max_referral_level>3) max_referral_level = 2;
 
   switch(max_referral_level)
     {
     case 2:
       {
-	unsigned char uni_requestedpath[1024];
-	int uni_reqpathoffset1,uni_reqpathoffset2;
-	int uni_curroffset;
-	int requestedpathlen=0;
-	int offset;
-	int i=0;
-
-	DEBUG(10,("setting up version2 referral\nRequested path:\n"));
-
-	requestedpathlen = (dos_struni2(uni_requestedpath,pathname,512)+1)*2;
-
-	dump_data(10,uni_requestedpath,requestedpathlen);
-
-	DEBUG(10,("ref count = %u\n",junction.referral_count));
-
-	uni_reqpathoffset1 = REFERRAL_HEADER_SIZE + 
-	  VERSION2_REFERRAL_SIZE * junction.referral_count;
-
-	uni_reqpathoffset2 = uni_reqpathoffset1 + requestedpathlen;
-
-	uni_curroffset = uni_reqpathoffset2 + requestedpathlen;
-
-	reply_size = REFERRAL_HEADER_SIZE + VERSION2_REFERRAL_SIZE*junction.referral_count +
-	  2 * requestedpathlen;
-	DEBUG(10,("reply_size: %u\n",reply_size));
-
-	/* add up the unicode lengths of all the referral paths */
-	for(i=0;i<junction.referral_count;i++)
-	  {
-	    DEBUG(10,("referral %u : %s\n",i,junction.referral_list[i].alternate_path));
-	    reply_size += (strlen(junction.referral_list[i].alternate_path)+1)*2;
-	  }
-
-	DEBUG(10,("reply_size = %u\n",reply_size));
-	/* add the unexplained 0x16 bytes */
-	reply_size += 0x16;
-
-	pdata = *ppdata = Realloc(pdata,reply_size);
-	if(pdata == NULL)
-	  {
-	    DEBUG(0,("malloc failed for Realloc!\n"));
-	    return -1;
-	  }
-
-	/* copy in the dfs requested paths.. required for offset calculations */
-	memcpy(pdata+uni_reqpathoffset1,uni_requestedpath,requestedpathlen);
-	memcpy(pdata+uni_reqpathoffset2,uni_requestedpath,requestedpathlen);
-
-
-	/* create the header */
-	SSVAL(pdata,0,requestedpathlen-2); /* path consumed */
-	SSVAL(pdata,2,junction.referral_count); /* number of referral in this pkt */
-	if(self_referral)
-	  SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER); 
-	else
-	  SIVAL(pdata,4,DFSREF_STORAGE_SERVER);
-
-	offset = 8;
-	/* add the referral elements */
-	for(i=0;i<junction.referral_count;i++)
-	  {
-	    struct referral* ref = &(junction.referral_list[i]);
-	    int unilen;
-
-	    SSVAL(pdata,offset,2); /* version 2 */
-	    SSVAL(pdata,offset+2,VERSION2_REFERRAL_SIZE);
-	    if(self_referral)
-	      SSVAL(pdata,offset+4,1);
-	    else
-	      SSVAL(pdata,offset+4,0);
-	    SSVAL(pdata,offset+6,0); /* ref_flags :use path_consumed bytes? */
-	    SIVAL(pdata,offset+8,ref->proximity);
-	    SIVAL(pdata,offset+12,ref->ttl);
-	    
-	    SSVAL(pdata,offset+16,uni_reqpathoffset1-offset);
-	    SSVAL(pdata,offset+18,uni_reqpathoffset2-offset);
-	    /* copy referred path into current offset */
-	    unilen = (dos_struni2(pdata+uni_curroffset,ref->alternate_path,512)
-		      +1)*2;
-	    SSVAL(pdata,offset+20,uni_curroffset-offset);
-	    
-	    uni_curroffset += unilen;
-	    offset += VERSION2_REFERRAL_SIZE;
-	  }
-	/* add in the unexplained 22 (0x16) bytes at the end */
-	memset(pdata+uni_curroffset,'\0',0x16);
-	free(junction.referral_list);
+	reply_size = setup_ver2_dfs_referral(pathname, ppdata, &junction,
+					     self_referral);
 	break;
       }
-
     case 3:
       {
-	unsigned char uni_reqpath[1024];
-	int uni_reqpathoffset1, uni_reqpathoffset2;
-	int uni_curroffset;
-
-	int reqpathlen = 0;
-	int offset,i=0;
-	
-	DEBUG(10,("setting up version3 referral\n"));
-
-	reqpathlen = (dos_struni2(uni_reqpath,pathname,512)+1)*2;
-	
-	dump_data(10,uni_reqpath,reqpathlen);
-
-	uni_reqpathoffset1 = REFERRAL_HEADER_SIZE + VERSION3_REFERRAL_SIZE *
-	  junction.referral_count;
-	uni_reqpathoffset2 = uni_reqpathoffset1 + reqpathlen;
-	reply_size = uni_curroffset = uni_reqpathoffset2 + reqpathlen;
-
-	for(i=0;i<junction.referral_count;i++)
-	  {
-	    DEBUG(10,("referral %u : %s\n",i,junction.referral_list[i].alternate_path));
-	    reply_size += (strlen(junction.referral_list[i].alternate_path)+1)*2;
-	  }
-
-	pdata = *ppdata = Realloc(pdata,reply_size);
-	if(pdata == NULL)
-	  {
-	    DEBUG(0,("version3 referral setup: malloc failed for Realloc!\n"));
-	    return -1;
-	  }
-	
-	/* create the header */
-	SSVAL(pdata,0,reqpathlen-2); /* path consumed */
-	SSVAL(pdata,2,junction.referral_count); /* number of referral in this pkt */
-	if(self_referral)
-	  SIVAL(pdata,4,DFSREF_REFERRAL_SERVER | DFSREF_STORAGE_SERVER); 
-	else
-	  SIVAL(pdata,4,DFSREF_STORAGE_SERVER);
-	
-	/* copy in the reqpaths */
-	memcpy(pdata+uni_reqpathoffset1,uni_reqpath,reqpathlen);
-	memcpy(pdata+uni_reqpathoffset2,uni_reqpath,reqpathlen);
-	
-	offset = 8;
-	for(i=0;i<junction.referral_count;i++)
-	  {
-	    struct referral* ref = &(junction.referral_list[i]);
-	    int unilen;
-
-	    SSVAL(pdata,offset,3); /* version 3 */
-	    SSVAL(pdata,offset+2,VERSION3_REFERRAL_SIZE);
-	    if(self_referral)
-	      SSVAL(pdata,offset+4,1);
-	    else
-	      SSVAL(pdata,offset+4,0);
-
-	    SSVAL(pdata,offset+6,0); /* ref_flags :use path_consumed bytes? */
-	    SIVAL(pdata,offset+8,ref->ttl);
-	    
-	    SSVAL(pdata,offset+12,uni_reqpathoffset1-offset);
-	    SSVAL(pdata,offset+14,uni_reqpathoffset2-offset);
-	    /* copy referred path into current offset */
-	    unilen = (dos_struni2(pdata+uni_curroffset,ref->alternate_path,512)
-		      +1)*2;
-	    SSVAL(pdata,offset+16,uni_curroffset-offset);
-	    /* copy 0x10 bytes of 00's in the ServiceSite GUID */
-	    memset(pdata+offset+18,'\0',16);
-
-	    uni_curroffset += unilen;
-	    offset += VERSION3_REFERRAL_SIZE;
-	  }
-	free(junction.referral_list);
+	reply_size = setup_ver3_dfs_referral(pathname, ppdata, &junction,
+					     self_referral);
 	break;
       }
+    default:
+      {
+	DEBUG(0,("setup_dfs_referral: Invalid dfs referral version: %d\n", 
+		 max_referral_level));
+	return -1;
+      }
     }
+      
   DEBUG(10,("DFS Referral pdata:\n"));
-  dump_data(10,pdata,reply_size);
+  dump_data(10,*ppdata,reply_size);
   return reply_size;
 }
 
+
 int dfs_path_error(char* inbuf, char* outbuf)
 {
   enum remote_arch_types ra_type = get_remote_arch();
@@ -437,4 +572,9 @@ int setup_dfs_referral(char* pathname, int max_referral_level,
   return -1;
 }
 
+BOOL is_msdfs_volume(connection_struct* conn, char* path)
+{
+  return False;
+}
+
 #endif