/* 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" /**************************************************************************** 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; }