Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/source3/nmbd/nmbd_logonnames.c b/source3/nmbd/nmbd_logonnames.c
new file mode 100644
index 0000000..bb1514f
--- /dev/null
+++ b/source3/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 1994-2003
+   
+   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 3 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, see <http://www.gnu.org/licenses/>.
+   
+*/
+
+#include "includes.h"
+#include "../librpc/gen_ndr/svcctl.h"
+#include "nmbd/nmbd.h"
+
+extern uint16_t 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)
+{
+	unstring failname;
+	struct work_record *work;
+	struct server_record *servrec;
+
+	pull_ascii_nstring(failname, sizeof(failname), fail_name->name);
+	work = find_workgroup_on_subnet(subrec, failname);
+	if(!work) {
+		DEBUG(0,("become_logon_server_fail: Error - cannot find \
+workgroup %s on subnet %s\n", failname, 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(), failname, 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_t nb_flags,
+                                        int ttl, struct in_addr registered_ip)
+{
+	unstring reg_name;
+	struct work_record *work;
+	struct server_record *servrec;
+
+	pull_ascii_nstring(reg_name, sizeof(reg_name), registered_name->name);
+	work = find_workgroup_on_subnet( subrec, reg_name);
+	if(!work) {
+		DEBUG(0,("become_logon_server_success: Error - cannot find \
+workgroup %s on subnet %s\n", reg_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(), reg_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);
+			}
+		}
+	}
+}