Updated Aquasoft Entry.
[samba.git] / source3 / nameresp.c
index a4a55c9f1bef7faaadfcd05616afdc3d7e6c1a87..7fcb41e79f0623738d80b0e65018315b764910e0 100644 (file)
@@ -2,7 +2,7 @@
    Unix SMB/Netbios implementation.
    Version 1.9.
    NBT netbios library routines
-   Copyright (C) Andrew Tridgell 1994-1995
+   Copyright (C) Andrew Tridgell 1994-1996
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    
+   Module name: nameresp.c
+
 */
 
 #include "includes.h"
-#include "localnet.h"
-#include "loadparm.h"
 
-/* this is our initiated name query response database */
-struct name_response_record *nameresponselist = NULL;
+extern int ClientNMB;
+extern int ClientDGRAM;
+
+extern struct subnet_record *subnetlist;
 
-extern struct in_addr myip;
 extern int DEBUGLEVEL;
 
-static uint16 name_trn_id=0;
-BOOL CanRecurse = True;
 extern pstring scope;
-extern pstring myname;
 extern struct in_addr ipzero;
+extern struct in_addr ipgrp;
 
 
 /***************************************************************************
-  add an initated name query  into the list
+  deals with an entry before it dies
   **************************************************************************/
-extern void add_response_record(struct name_response_record *n)
+static void dead_netbios_entry(struct subnet_record *d,
+                               struct response_record *n)
 {
-  struct name_response_record *n2;
+  DEBUG(3,("Removing dead netbios entry for %s %s (num_msgs=%d)\n",
+          inet_ntoa(n->send_ip), namestr(&n->name), n->num_msgs));
+
+  debug_state_type(n->state);
 
-  if (!nameresponselist)
+  switch (n->state)
+  {
+    case NAME_QUERY_CONFIRM:
     {
-      nameresponselist = n;
-      n->prev = NULL;
-      n->next = NULL;
-      return;
+               if (!lp_wins_support()) return; /* only if we're a WINS server */
+
+               if (n->num_msgs == 0)
+        {
+                       /* oops. name query had no response. check that the name is
+                          unique and then remove it from our WINS database */
+
+                       /* IMPORTANT: see query_refresh_names() */
+
+                       if ((!NAME_GROUP(n->nb_flags)))
+                       {
+                               struct subnet_record *d1 = find_subnet(ipgrp);
+                               if (d1)
+                               {
+                                       /* remove the name that had been registered with us,
+                                          and we're now getting no response when challenging.
+                                          see rfc1001.txt 15.5.2
+                                        */
+                                       remove_netbios_name(d1, n->name.name, n->name.name_type,
+                                                                       REGISTER, n->send_ip);
+                               }
+                       }
+               }
+               break;
     }
-  
-  for (n2 = nameresponselist; n2->next; n2 = n2->next) ;
-  
-  n2->next = n;
-  n->next = NULL;
-  n->prev = n2;
-}
 
+       case NAME_QUERY_MST_CHK:
+       {
+         /* if no response received, the master browser must have gone
+                down on that subnet, without telling anyone. */
 
-/*******************************************************************
-  remove old name response entries
-  ******************************************************************/
-void expire_netbios_response_entries(time_t t)
-{
-  struct name_response_record *n;
-  struct name_response_record *nextn;
+         /* IMPORTANT: see response_netbios_packet() */
 
-  for (n = nameresponselist; n; n = nextn)
-    {
-      if (n->start_time < t)
-       {
-         DEBUG(3,("Removing dead name query for %s %s (num_msgs=%d)\n",
-                  inet_ntoa(n->to_ip), namestr(&n->name), n->num_msgs));
-
-         if (n->cmd_type == CHECK_MASTER && n->num_msgs == 0)
-           {
-             if (n->num_msgs > 1)
-               {
-                 /* more than one master browser detected on a subnet.
-                    there is a configuration problem. force an election */
-                 struct domain_record *d;
-                 if ((d = find_domain(n->to_ip)))
-                   {
-                     send_election(d,n->name.name,0,0,myname);
-                   }
-               }
-             
-             /* if no response received, the master browser must have gone */
-             browser_gone(n->name.name, n->to_ip);
-           }
-         
-         nextn = n->next;
-         
-         if (n->prev) n->prev->next = n->next;
-         if (n->next) n->next->prev = n->prev;
-         
-         if (nameresponselist == n) nameresponselist = n->next; 
-         
-         free(n);
+         if (n->num_msgs == 0)
+                 browser_gone(n->name.name, n->send_ip);
+         break;
        }
-      else
+
+       case NAME_RELEASE:
        {
-         nextn = n->next;
+         /* if no response received, it must be OK for us to release the
+                name. nobody objected (including a potentially dead or deaf
+                WINS server) */
+
+         /* IMPORTANT: see response_name_release() */
+
+         if (ismyip(n->send_ip))
+         {
+               name_unregister_work(d,n->name.name,n->name.name_type);
+         }
+         if (!n->bcast)
+         {
+                DEBUG(0,("WINS server did not respond to name release!\n"));
+         /* XXXX whoops. we have problems. must deal with this */
+         }
+         break;
        }
-    }
-}
 
+       case NAME_REGISTER_CHALLENGE:
+       {
+               /* name challenge: no reply. we can reply to the person that
+                  wanted the unique name and tell them that they can have it
+                */
+
+               add_name_respond(d,n->fd,d->myip, n->response_id ,&n->name,
+                                               n->nb_flags, GET_TTL(0),
+                                               n->reply_to_ip, False, n->reply_to_ip);
+
+         if (!n->bcast)
+         {
+                DEBUG(1,("WINS server did not respond to name registration!\n"));
+         /* XXXX whoops. we have problems. must deal with this */
+         }
+      break;
+       }
 
-/****************************************************************************
-  reply to a netbios name packet 
-  ****************************************************************************/
-void reply_netbios_packet(struct packet_struct *p1,int trn_id,int rcode,int opcode,
-                         struct nmb_name *rr_name,int rr_type,int rr_class,int ttl,
-                         char *data,int len)
-{
-  struct packet_struct p;
-  struct nmb_packet *nmb = &p.packet.nmb;
-  struct res_rec answers;
-  char *packet_type = "unknown";
-  
-  p = *p1;
+       case NAME_REGISTER:
+       {
+         /* if no response received, and we are using a broadcast registration
+                method, it must be OK for us to register the name: nobody objected 
+                on that subnet. if we are using a WINS server, then the WINS
+                server must be dead or deaf.
+          */
+         if (n->bcast)
+         {
+               /* broadcast method: implicit acceptance of the name registration
+                  by not receiving any objections. */
+
+               /* IMPORTANT: see response_name_reg() */
+
+               name_register_work(d,n->name.name,n->name.name_type,
+                               n->nb_flags, n->ttl, n->reply_to_ip, n->bcast);
+         }
+         else
+         {
+               /* received no response. rfc1001.txt states that after retrying,
+                  we should assume the WINS server is dead, and fall back to
+                  broadcasting (see bits about M nodes: can't find any right
+           now) */
+               
+               DEBUG(1,("WINS server did not respond to name registration!\n"));
+        /* XXXX whoops. we have problems. must deal with this */
+         }
+         break;
+       }
 
-  if (rr_type == NMB_STATUS) packet_type = "nmb_status";
-  if (rr_type == NMB_QUERY ) packet_type = "nmb_query";
-  if (rr_type == NMB_REG   ) packet_type = "nmb_reg";
-  if (rr_type == NMB_REL   ) packet_type = "nmb_rel";
-  
-  DEBUG(4,("replying netbios packet: %s %s\n",
-          packet_type, namestr(rr_name), inet_ntoa(p.ip)));
-
-  nmb->header.name_trn_id = trn_id;
-  nmb->header.opcode = opcode;
-  nmb->header.response = True;
-  nmb->header.nm_flags.bcast = False;
-  nmb->header.nm_flags.recursion_available = True;
-  nmb->header.nm_flags.recursion_desired = True;
-  nmb->header.nm_flags.trunc = False;
-  nmb->header.nm_flags.authoritative = True;
-  
-  nmb->header.qdcount = 0;
-  nmb->header.ancount = 1;
-  nmb->header.nscount = 0;
-  nmb->header.arcount = 0;
-  nmb->header.rcode = 0;
-  
-  bzero((char*)&nmb->question,sizeof(nmb->question));
-  
-  nmb->answers = &answers;
-  bzero((char*)nmb->answers,sizeof(*nmb->answers));
-  
-  nmb->answers->rr_name  = *rr_name;
-  nmb->answers->rr_type  = rr_type;
-  nmb->answers->rr_class = rr_class;
-  nmb->answers->ttl      = ttl;
-  
-  if (data && len)
-    {
-      nmb->answers->rdlength = len;
-      memcpy(nmb->answers->rdata, data, len);
-    }
-  
-  p.packet_type = NMB_PACKET;
-  
-  debug_nmb_packet(&p);
-  
-  send_packet(&p);
+       default:
+       {
+         /* nothing to do but delete the dead expected-response structure */
+         /* this is normal. */
+         break;
+       }
+  }
 }
 
 
-/****************************************************************************
-  initiate a netbios packet
-  ****************************************************************************/
-uint16 initiate_netbios_packet(int fd,int quest_type,char *name,int name_type,
-                              int nb_flags,BOOL bcast,BOOL recurse,struct in_addr to_ip)
-{
-  struct packet_struct p;
-  struct nmb_packet *nmb = &p.packet.nmb;
-  struct res_rec additional_rec;
-  char *packet_type = "unknown";
-  int opcode = -1;
-
-  if (quest_type == NMB_STATUS) { packet_type = "nmb_status"; opcode = 0; }
-  if (quest_type == NMB_QUERY ) { packet_type = "nmb_query"; opcode = 0; }
-  if (quest_type == NMB_REG   ) { packet_type = "nmb_reg"; opcode = 5; }
-  if (quest_type == NMB_REL   ) { packet_type = "nmb_rel"; opcode = 6; }
-  
-  DEBUG(4,("initiating netbios packet: %s %s(%x) (bcast=%s) %s\n",
-          packet_type, name, name_type, BOOLSTR(bcast), inet_ntoa(to_ip)));
-
-  if (opcode == -1) return False;
-
-  bzero((char *)&p,sizeof(p));
-
-  if (!name_trn_id) name_trn_id = (time(NULL)%(unsigned)0x7FFF) + 
-    (getpid()%(unsigned)100);
-  name_trn_id = (name_trn_id+1) % (unsigned)0x7FFF;
-
-  nmb->header.name_trn_id = name_trn_id;
-  nmb->header.opcode = opcode;
-  nmb->header.response = False;
-  nmb->header.nm_flags.bcast = bcast;
-  nmb->header.nm_flags.recursion_available = CanRecurse;
-  nmb->header.nm_flags.recursion_desired = recurse;
-  nmb->header.nm_flags.trunc = False;
-  nmb->header.nm_flags.authoritative = False;
-  nmb->header.rcode = 0;
-  nmb->header.qdcount = 1;
-  nmb->header.ancount = 0;
-  nmb->header.nscount = 0;
-  nmb->header.arcount = (quest_type==NMB_REG || quest_type==NMB_REL) ? 1 : 0;
-  
-  make_nmb_name(&nmb->question.question_name,name,name_type,scope);
-  
-  nmb->question.question_type = quest_type;
-  nmb->question.question_class = 0x1;
-  
-  if (quest_type == NMB_REG || quest_type == NMB_REL)
-    {
-      nmb->additional = &additional_rec;
-      bzero((char *)nmb->additional,sizeof(*nmb->additional));
-      
-      nmb->additional->rr_name  = nmb->question.question_name;
-      nmb->additional->rr_type  = nmb->question.question_type;
-      nmb->additional->rr_class = nmb->question.question_class;
-      
-      nmb->additional->ttl = quest_type == NMB_REG ? lp_max_ttl() : 0;
-      nmb->additional->rdlength = 6;
-      nmb->additional->rdata[0] = nb_flags;
-      putip(&nmb->additional->rdata[2],(char *)&myip);
-    }
-  
-  p.ip = to_ip;
-  p.port = NMB_PORT;
-  p.fd = fd;
-  p.timestamp = time(NULL);
-  p.packet_type = NMB_PACKET;
-  
-  if (!send_packet(&p)) 
-    return(0);
-  
-  return(name_trn_id);
-}
+/*******************************************************************
+  remove old name response entries
 
+  XXXX retry code needs to be added, including a retry wait period and a count
+       see name_query() and name_status() for suggested implementation.
 
-void send_name_reg(void)
+  ******************************************************************/
+void expire_netbios_response_entries()
 {
-  struct packet_struct p;
-  struct nmb_packet *nmb = &p.packet.nmb;
-  int rcode = 0;
-
-  nmb->header.opcode = 5; 
-  nmb->header.response = True;
-  nmb->header.nm_flags.bcast = False;
-  nmb->header.nm_flags.recursion_available = CanRecurse;
-  nmb->header.nm_flags.recursion_desired = CanRecurse;
-  nmb->header.nm_flags.trunc = False;
-  nmb->header.nm_flags.authoritative = True; 
-  nmb->header.qdcount = 0;
-  nmb->header.ancount = 1;
-  nmb->header.nscount = 0;
-  nmb->header.arcount = 0;
-  nmb->header.rcode = rcode;
-  
-  send_packet(&p);  
+  struct subnet_record *d;
+
+  for (d = subnetlist; d; d = d->next)
+  {
+    struct response_record *n, *nextn;
+
+    for (n = d->responselist; n; n = nextn)
+    {
+         nextn = n->next;
+
+      if (n->repeat_time <= time(NULL))
+         {
+                 if (n->repeat_count > 0)
+                 {
+                       /* resend the entry */
+                       initiate_netbios_packet(&n->response_id, n->fd, n->quest_type,
+                                               n->name.name, n->name.name_type,
+                                     n->nb_flags, n->bcast, n->recurse, n->send_ip);
+
+            n->repeat_time += n->repeat_interval; /* XXXX ms needed */
+            n->repeat_count--;
+
+                 }
+                 else
+                 {
+              DEBUG(4,("timeout response %d for %s %s\n",
+                                               n->response_id, namestr(&n->name),
+                        inet_ntoa(n->send_ip)));
+
+                         dead_netbios_entry    (d,n); /* process the non-response */
+              remove_response_record(d,n); /* remove the non-response */
+
+                         continue;
+                  }
+         }
+    }
+  }
 }
 
 
@@ -273,10 +221,19 @@ void send_name_reg(void)
   name server instead, if it exists. if wins is false, and there has been no
   WINS server specified, the packet will NOT be sent.
   ****************************************************************************/
-void queue_netbios_pkt_wins(int fd,int quest_type,enum cmd_type cmd,
-                           char *name,int name_type,int nb_flags,
-                           BOOL bcast,BOOL recurse,struct in_addr to_ip)
+struct response_record *queue_netbios_pkt_wins(struct subnet_record *d,
+                               int fd,int quest_type,enum state_type state,
+                           char *name,int name_type,int nb_flags, time_t ttl,
+                               int server_type, char *my_name, char *my_comment,
+                           BOOL bcast,BOOL recurse,
+                               struct in_addr send_ip, struct in_addr reply_to_ip)
 {
+  /* XXXX note: please see rfc1001.txt section 10 for details on this
+     function: it is currently inappropriate to use this - it will do
+     for now - once there is a clarification of B, M and P nodes and
+     which one samba is supposed to be
+   */
+
   if ((!lp_wins_support()) && (*lp_wins_server()))
     {
       /* samba is not a WINS server, and we are using a WINS server */
@@ -286,7 +243,7 @@ void queue_netbios_pkt_wins(int fd,int quest_type,enum cmd_type cmd,
       if (!zero_ip(wins_ip))
        {
          bcast = False;
-         to_ip = wins_ip;
+         send_ip = wins_ip;
        }
       else
        {
@@ -296,40 +253,12 @@ void queue_netbios_pkt_wins(int fd,int quest_type,enum cmd_type cmd,
        }
     }
 
-  if (zero_ip(to_ip)) return;
+  if (zero_ip(send_ip)) return NULL;
 
-  queue_netbios_packet(fd, quest_type, cmd, 
-                      name, name_type, nb_flags,
-                      bcast, recurse, to_ip);
-}
-
-/****************************************************************************
-  create a name query response record
-  **************************************************************************/
-static struct name_response_record *make_name_query_record(
-                                                          enum cmd_type cmd,int id,int fd,
-                                                          char *name,int type,
-                                                          BOOL bcast,BOOL recurse,
-                                                          struct in_addr ip)
-{
-  struct name_response_record *n;
-       
-  if (!name || !name[0]) return NULL;
-       
-  if (!(n = (struct name_response_record *)malloc(sizeof(*n)))) 
-    return(NULL);
-
-  n->response_id = id;
-  n->cmd_type = cmd;
-  n->fd = fd;
-  make_nmb_name(&n->name, name, type, scope);
-  n->bcast = bcast;
-  n->recurse = recurse;
-  n->to_ip = ip;
-  n->start_time = time(NULL);
-  n->num_msgs = 0;
-
-  return n;
+  return queue_netbios_packet(d,fd, quest_type, state, 
+                      name, name_type, nb_flags, ttl,
+               server_type,my_name,my_comment,
+                      bcast, recurse, send_ip, reply_to_ip);
 }
 
 
@@ -339,287 +268,35 @@ static struct name_response_record *make_name_query_record(
   master browsers (WORKGROUP(1d or 1b) or __MSBROWSE__(1)) to get
   complete lists across a wide area network
   ****************************************************************************/
-void queue_netbios_packet(int fd,int quest_type,enum cmd_type cmd,char *name,
-                         int name_type,int nb_flags,BOOL bcast,BOOL recurse,
-                         struct in_addr to_ip)
+struct response_record *queue_netbios_packet(struct subnet_record *d,
+                       int fd,int quest_type,enum state_type state,char *name,
+                       int name_type,int nb_flags, time_t ttl,
+                       int server_type, char *my_name, char *my_comment,
+                   BOOL bcast,BOOL recurse,
+                       struct in_addr send_ip, struct in_addr reply_to_ip)
 {
-  uint16 id = initiate_netbios_packet(fd, quest_type, name, name_type,
-                                     nb_flags, bcast, recurse, to_ip);
-  struct name_response_record *n;
-
-  if (id == 0) return;
-  
-  if ((n = make_name_query_record(cmd,id,fd,name,name_type,bcast,recurse,to_ip)))
-    {
-      add_response_record(n);
-    }
-}
-
+  struct in_addr wins_ip = ipgrp;
+  struct response_record *n;
+  uint16 id = 0xffff;
 
-/****************************************************************************
-  find a response in the name query response list
-  **************************************************************************/
-struct name_response_record *find_name_query(uint16 id)
-{   
-  struct name_response_record *n;
-
-  for (n = nameresponselist; n; n = n->next)
-    {
-      if (n->response_id == id)        {
-       return n;
-      }
-    }
-
-  return NULL;
-}
-
-
-/*******************************************************************
-  the global packet linked-list. incoming entries are added to the
-  end of this list.  it is supposed to remain fairly short so we
-  won't bother with an end pointer.
-  ******************************************************************/
-static struct packet_struct *packet_queue = NULL;
+  /* ha ha. no. do NOT broadcast to 255.255.255.255: it's a pseudo address */
+  if (ip_equal(wins_ip, send_ip)) return NULL;
 
-/*******************************************************************
-  queue a packet into the packet queue
-  ******************************************************************/
-void queue_packet(struct packet_struct *packet)
-{
-  struct packet_struct *p;
+  initiate_netbios_packet(&id, fd, quest_type, name, name_type,
+                                     nb_flags, bcast, recurse, send_ip);
 
-  if (!packet_queue) {
-    packet->prev = NULL;
-    packet->next = NULL;
-    packet_queue = packet;
-    return;
+  if (id == 0xffff) {
+    DEBUG(4,("did not initiate netbios packet: %s\n", inet_ntoa(send_ip)));
+    return NULL;
   }
   
-  /* find the bottom */
-  for (p=packet_queue;p->next;p=p->next) ;
-
-  p->next = packet;
-  packet->next = NULL;
-  packet->prev = p;
-}
-
-/*******************************************************************
-  run elements off the packet queue till its empty
-  ******************************************************************/
-void run_packet_queue()
-{
-  struct packet_struct *p;
-
-  while ((p=packet_queue))
+  if ((n = make_response_queue_record(state,id,fd,
+                                               quest_type,name,name_type,nb_flags,ttl,
+                                               server_type,my_name, my_comment,
+                                               bcast,recurse,send_ip,reply_to_ip)))
     {
-      switch (p->packet_type)
-       {
-       case NMB_PACKET:
-         process_nmb(p);
-         break;
-         
-       case DGRAM_PACKET:
-         process_dgram(p);
-         break;
-       }
-      
-      packet_queue = packet_queue->next;
-      if (packet_queue) packet_queue->prev = NULL;
-      free_packet(p);
+      add_response_record(d,n);
+      return n;
     }
+   return NULL;
 }
-
-/****************************************************************************
-  listens for NMB or DGRAM packets, and queues them
-  ***************************************************************************/
-void listen_for_packets(BOOL run_election)
-{
-  fd_set fds;
-  int selrtn;
-  struct timeval timeout;
-
-  FD_ZERO(&fds);
-  FD_SET(ClientNMB,&fds);
-  FD_SET(ClientDGRAM,&fds);
-
-  /* during elections we need to send election packets at one
-     second intervals */
-
-  timeout.tv_sec = run_election ? 1 : NMBD_SELECT_LOOP;
-  timeout.tv_usec = 0;
-
-  selrtn = sys_select(&fds,&timeout);
-
-  if (FD_ISSET(ClientNMB,&fds))
-    {
-      struct packet_struct *packet = read_packet(ClientNMB, NMB_PACKET);
-      if (packet) queue_packet(packet);
-    }
-
-  if (FD_ISSET(ClientDGRAM,&fds))
-    {
-      struct packet_struct *packet = read_packet(ClientDGRAM, DGRAM_PACKET);
-      if (packet) queue_packet(packet);
-    }
-}
-
-
-
-/****************************************************************************
-interpret a node status response. this is pretty hacked: we need two bits of
-info. a) the name of the workgroup b) the name of the server. it will also
-add all the names it finds into the namelist.
-****************************************************************************/
-BOOL interpret_node_status(char *p, struct nmb_name *name,int t,
-                          char *serv_name, struct in_addr ip)
-{
-  int level = t==0x20 ? 4 : 0;
-  int numnames = CVAL(p,0);
-  BOOL found = False;
-
-  DEBUG(level,("received %d names\n",numnames));
-
-  p += 1;
-
-  if (serv_name) *serv_name = 0;
-
-  while (numnames--)
-    {
-      char qname[17];
-      int type;
-      fstring flags;
-      int nb_flags;
-      
-      BOOL group = False;
-      BOOL add   = False;
-      
-      *flags = 0;
-      
-      StrnCpy(qname,p,15);
-      type = CVAL(p,15);
-      nb_flags = p[16];
-      
-      p += 18;
-      
-      if (NAME_GROUP    (nb_flags)) { strcat(flags,"<GROUP> "); group=True;}
-      if (NAME_BFLAG    (nb_flags)) { strcat(flags,"B "); }
-      if (NAME_PFLAG    (nb_flags)) { strcat(flags,"P "); }
-      if (NAME_MFLAG    (nb_flags)) { strcat(flags,"M "); }
-      if (NAME__FLAG    (nb_flags)) { strcat(flags,"_ "); }
-      if (NAME_DEREG    (nb_flags)) { strcat(flags,"<DEREGISTERING> "); }
-      if (NAME_CONFLICT (nb_flags)) { strcat(flags,"<CONFLICT> "); add=True;}
-      if (NAME_ACTIVE   (nb_flags)) { strcat(flags,"<ACTIVE> "); add=True; }
-      if (NAME_PERMANENT(nb_flags)) { strcat(flags,"<PERMANENT> "); add=True;}
-      
-      /* might as well update our namelist while we're at it */
-      if (add)
-       {
-         struct in_addr nameip;
-         enum name_source src;
-         
-         if (ip_equal(ip, myip))
-           {
-             nameip = ipzero;
-             src = SELF;
-           }
-         else
-           {
-             nameip = ip;
-             src = STATUS_QUERY;
-           }
-         add_netbios_entry(qname,type,nb_flags,2*60*60,src,nameip);
-       } 
-
-      /* we want the server name */
-      if (serv_name && !*serv_name && !group && t == 0)
-       {
-         StrnCpy(serv_name,qname,15);
-         serv_name[15] = 0;
-       }
-      
-      /* looking for a name and type? */
-      if (name && !found && (t == type))
-       {
-         /* take a guess at some of the name types we're going to ask for.
-            evaluate whether they are group names or no... */
-         if (((t == 0x1b || t == 0x1d             ) && !group) ||
-             ((t == 0x20 || t == 0x1c || t == 0x1e) &&  group))
-           {
-             found = True;
-             make_nmb_name(name,qname,type,scope);
-           }
-       }
-      
-      DEBUG(level,("\t%s(0x%x)\t%s\n",qname,type,flags));
-    }
-  DEBUG(level,("num_good_sends=%d num_good_receives=%d\n",
-              IVAL(p,20),IVAL(p,24)));
-  return found;
-}
-
-
-/****************************************************************************
-  construct and send a netbios DGRAM
-
-  Note that this currently sends all answers to port 138. thats the
-  wrong things to do! I should send to the requestors port. XXX
-  **************************************************************************/
-BOOL send_mailslot_reply(char *mailslot,int fd,char *buf,int len,char *srcname,
-                        char *dstname,int src_type,int dest_type,
-                        struct in_addr dest_ip,struct in_addr src_ip)
-{
-  struct packet_struct p;
-  struct dgram_packet *dgram = &p.packet.dgram;
-  char *ptr,*p2;
-  char tmp[4];
-
-  bzero((char *)&p,sizeof(p));
-
-  dgram->header.msg_type = 0x11; /* DIRECT GROUP DATAGRAM */
-  dgram->header.flags.node_type = M_NODE;
-  dgram->header.flags.first = True;
-  dgram->header.flags.more = False;
-  dgram->header.dgm_id = name_trn_id++;
-  dgram->header.source_ip = src_ip;
-  dgram->header.source_port = DGRAM_PORT;
-  dgram->header.dgm_length = 0; /* let build_dgram() handle this */
-  dgram->header.packet_offset = 0;
-  
-  make_nmb_name(&dgram->source_name,srcname,src_type,scope);
-  make_nmb_name(&dgram->dest_name,dstname,dest_type,scope);
-
-  ptr = &dgram->data[0];
-
-  /* now setup the smb part */
-  ptr -= 4; /* XXX ugliness because of handling of tcp SMB length */
-  memcpy(tmp,ptr,4);
-  set_message(ptr,17,17 + len,True);
-  memcpy(ptr,tmp,4);
-
-  CVAL(ptr,smb_com) = SMBtrans;
-  SSVAL(ptr,smb_vwv1,len);
-  SSVAL(ptr,smb_vwv11,len);
-  SSVAL(ptr,smb_vwv12,70 + strlen(mailslot));
-  SSVAL(ptr,smb_vwv13,3);
-  SSVAL(ptr,smb_vwv14,1);
-  SSVAL(ptr,smb_vwv15,1);
-  SSVAL(ptr,smb_vwv16,2);
-  p2 = smb_buf(ptr);
-  strcpy(p2,mailslot);
-  p2 = skip_string(p2,1);
-
-  memcpy(p2,buf,len);
-  p2 += len;
-
-  dgram->datasize = PTR_DIFF(p2,ptr+4); /* +4 for tcp length */
-
-  p.ip = dest_ip;
-  p.port = DGRAM_PORT;
-  p.fd = fd;
-  p.timestamp = time(NULL);
-  p.packet_type = DGRAM_PACKET;
-
-  return(send_packet(&p));
-}
-
-