diff options
Diffstat (limited to 'source3/nmbd/nmbd_nodestatus.c')
| -rw-r--r-- | source3/nmbd/nmbd_nodestatus.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/source3/nmbd/nmbd_nodestatus.c b/source3/nmbd/nmbd_nodestatus.c new file mode 100644 index 0000000000..168ccf1ad4 --- /dev/null +++ b/source3/nmbd/nmbd_nodestatus.c @@ -0,0 +1,91 @@ +/* + 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; +} |