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authorAndrew Tridgell <tridge@samba.org>2003-08-13 01:53:07 +0000
committerAndrew Tridgell <tridge@samba.org>2003-08-13 01:53:07 +0000
commitef2e26c91b80556af033d3335e55f5dfa6fff31d (patch)
treefaa21bfd7e7b5247250b47c7891dc1a5ebee6be9 /source4/nmbd/nmbd_nodestatus.c
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first public release of samba4 code
(This used to be commit b0510b5428b3461aeb9bbe3cc95f62fc73e2b97f)
Diffstat (limited to 'source4/nmbd/nmbd_nodestatus.c')
-rw-r--r--source4/nmbd/nmbd_nodestatus.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/source4/nmbd/nmbd_nodestatus.c b/source4/nmbd/nmbd_nodestatus.c
new file mode 100644
index 0000000000..993e4d9d17
--- /dev/null
+++ b/source4/nmbd/nmbd_nodestatus.c
@@ -0,0 +1,94 @@
+/*
+ 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"
+
+/****************************************************************************
+ Deal with a successful node status response.
+****************************************************************************/
+static void node_status_response(struct subnet_record *subrec,
+ struct response_record *rrec, struct packet_struct *p)
+{
+ struct nmb_packet *nmb = &p->packet.nmb;
+ struct nmb_name *question_name = &rrec->packet->packet.nmb.question.question_name;
+ struct nmb_name *answer_name = &nmb->answers->rr_name;
+
+ /* Sanity check. Ensure that the answer name in the incoming packet is the
+ same as the requested name in the outgoing packet. */
+
+ if(!nmb_name_equal(question_name, answer_name))
+ {
+ DEBUG(0,("node_status_response: Answer name %s differs from question \
+name %s.\n", nmb_namestr(answer_name), nmb_namestr(question_name)));
+ return;
+ }
+
+ DEBUG(5,("node_status_response: response from name %s on subnet %s.\n",
+ nmb_namestr(answer_name), subrec->subnet_name));
+
+ /* Just send the whole answer resource record for the success function
+ to parse. */
+ if(rrec->success_fn)
+ (*(node_status_success_function)rrec->success_fn)(subrec, rrec->userdata, nmb->answers, p->ip);
+
+ /* Ensure we don't retry. */
+ remove_response_record(subrec, rrec);
+}
+
+/****************************************************************************
+ Deal with a timeout when requesting a node status.
+****************************************************************************/
+static void node_status_timeout_response(struct subnet_record *subrec,
+ struct response_record *rrec)
+{
+ struct nmb_packet *sent_nmb = &rrec->packet->packet.nmb;
+ struct nmb_name *question_name = &sent_nmb->question.question_name;
+
+ DEBUG(5,("node_status_timeout_response: failed to get node status from name %s on subnet %s\n",
+ nmb_namestr(question_name), subrec->subnet_name));
+
+ if( rrec->fail_fn)
+ (*rrec->fail_fn)(subrec, rrec);
+
+ /* Ensure we don't retry. */
+ remove_response_record(subrec, rrec);
+}
+
+/****************************************************************************
+ Try and do a node status to a name - given the name & IP address.
+****************************************************************************/
+
+BOOL node_status(struct subnet_record *subrec, struct nmb_name *nmbname,
+ struct in_addr send_ip, node_status_success_function success_fn,
+ node_status_fail_function fail_fn, struct userdata_struct *userdata)
+{
+ if(queue_node_status( subrec,
+ node_status_response, node_status_timeout_response,
+ success_fn, fail_fn, userdata, nmbname, send_ip)==NULL)
+ {
+ DEBUG(0,("node_status: Failed to send packet trying to get node status for \
+name %s, IP address %s\n", nmb_namestr(nmbname), inet_ntoa(send_ip)));
+ return True;
+ }
+ return False;
+}