first public release of samba4 code

(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)

1 files changed, 172 insertions, 0 deletions

diff --git a/source4/nmbd/nmbd_logonnames.c b/source4/nmbd/nmbd_logonnames.c
new file mode 100644
index 00000000000..40edc68800a
--- /dev/null
+++ b/source4/nmbd/nmbd_logonnames.c
@@ -0,0 +1,172 @@
+/* 
+   Unix SMB/CIFS implementation.
+   NBT netbios routines and daemon - version 2
+   Copyright (C) Andrew Tridgell 1994-1998
+   Copyright (C) Luke Kenneth Casson Leighton 1994-1998
+   Copyright (C) Jeremy Allison 1994-1998
+   
+   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
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+   
+*/
+
+#include "includes.h"
+
+extern struct in_addr allones_ip;
+
+extern uint16 samba_nb_type; /* Samba's NetBIOS type. */
+
+/****************************************************************************
+  Fail to become a Logon server on a subnet.
+  ****************************************************************************/
+static void become_logon_server_fail(struct subnet_record *subrec,
+                                      struct response_record *rrec,
+                                      struct nmb_name *fail_name)
+{
+  struct work_record *work = find_workgroup_on_subnet(subrec, fail_name->name);
+  struct server_record *servrec;
+
+  if(!work)
+  {
+    DEBUG(0,("become_logon_server_fail: Error - cannot find \
+workgroup %s on subnet %s\n", fail_name->name, subrec->subnet_name));
+    return;
+  }
+
+  if((servrec = find_server_in_workgroup( work, lp_netbios_name())) == NULL)
+  {
+    DEBUG(0,("become_logon_server_fail: Error - cannot find server %s \
+in workgroup %s on subnet %s\n",
+       lp_netbios_name(), fail_name->name, subrec->subnet_name));
+    work->log_state = LOGON_NONE;
+    return;
+  }
+
+  /* Set the state back to LOGON_NONE. */
+  work->log_state = LOGON_NONE;
+
+  servrec->serv.type &= ~SV_TYPE_DOMAIN_CTRL;
+
+  DEBUG(0,("become_logon_server_fail: Failed to become a domain master for \
+workgroup %s on subnet %s. Couldn't register name %s.\n",
+       work->work_group, subrec->subnet_name, nmb_namestr(fail_name)));
+
+}
+
+/****************************************************************************
+  Become a Logon server on a subnet.
+  ****************************************************************************/
+
+static void become_logon_server_success(struct subnet_record *subrec,
+                                        struct userdata_struct *userdata,
+                                        struct nmb_name *registered_name,
+                                        uint16 nb_flags,
+                                        int ttl, struct in_addr registered_ip)
+{
+  struct work_record *work = find_workgroup_on_subnet( subrec, registered_name->name);
+  struct server_record *servrec;
+
+  if(!work)
+  {
+    DEBUG(0,("become_logon_server_success: Error - cannot find \
+workgroup %s on subnet %s\n", registered_name->name, subrec->subnet_name));
+    return;
+  }
+
+  if((servrec = find_server_in_workgroup( work, lp_netbios_name())) == NULL)
+  {
+    DEBUG(0,("become_logon_server_success: Error - cannot find server %s \
+in workgroup %s on subnet %s\n",
+       lp_netbios_name(), registered_name->name, subrec->subnet_name));
+    work->log_state = LOGON_NONE;
+    return;
+  }
+
+  /* Set the state in the workgroup structure. */
+  work->log_state = LOGON_SRV; /* Become domain master. */
+
+  /* Update our server status. */
+  servrec->serv.type |= (SV_TYPE_NT|SV_TYPE_DOMAIN_MEMBER);
+  /* To allow Win95 policies to load we need to set type domain
+     controller.
+   */
+  servrec->serv.type |= SV_TYPE_DOMAIN_CTRL;
+
+  /* Tell the namelist writer to write out a change. */
+  subrec->work_changed = True;
+
+  /*
+   * Add the WORKGROUP<1C> name to the UNICAST subnet with the IP address
+   * for this subnet so we will respond to queries on this name.
+   */
+  {
+	  struct nmb_name nmbname;
+	  make_nmb_name(&nmbname,lp_workgroup(),0x1c);
+	  insert_permanent_name_into_unicast(subrec, &nmbname, 0x1c);
+  }
+
+  DEBUG(0,("become_logon_server_success: Samba is now a logon server \
+for workgroup %s on subnet %s\n", work->work_group, subrec->subnet_name));
+}
+
+/*******************************************************************
+  Become a logon server by attempting to register the WORKGROUP<1c>
+  group name.
+******************************************************************/
+
+static void become_logon_server(struct subnet_record *subrec,
+                                struct work_record *work)
+{
+  DEBUG(2,("become_logon_server: Atempting to become logon server for workgroup %s \
+on subnet %s\n", work->work_group,subrec->subnet_name));
+
+  DEBUG(3,("become_logon_server: go to first stage: register %s<1c> name\n",
+          work->work_group));
+  work->log_state = LOGON_WAIT;
+
+  register_name(subrec, work->work_group,0x1c,samba_nb_type|NB_GROUP,
+                become_logon_server_success,
+                become_logon_server_fail, NULL);
+}
+
+/*****************************************************************************
+  Add the internet group <1c> logon names by unicast and broadcast.
+  ****************************************************************************/
+void add_logon_names(void)
+{
+  struct subnet_record *subrec;
+
+  for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec))
+  {
+    struct work_record *work = find_workgroup_on_subnet(subrec, lp_workgroup());
+
+    if (work && (work->log_state == LOGON_NONE))
+    {
+      struct nmb_name nmbname;
+      make_nmb_name(&nmbname,lp_workgroup(),0x1c);
+
+      if (find_name_on_subnet(subrec, &nmbname, FIND_SELF_NAME) == NULL)
+      {
+        if( DEBUGLVL( 0 ) )
+        {
+          dbgtext( "add_domain_logon_names:\n" );
+          dbgtext( "Attempting to become logon server " );
+          dbgtext( "for workgroup %s ", lp_workgroup() );
+          dbgtext( "on subnet %s\n", subrec->subnet_name );
+        }
+        become_logon_server(subrec, work);
+      }
+    }
+  }
+}