summaryrefslogtreecommitdiff
path: root/source4/nmbd/nmbd_namequery.c
diff options
context:
space:
mode:
Diffstat (limited to 'source4/nmbd/nmbd_namequery.c')
-rw-r--r--source4/nmbd/nmbd_namequery.c304
1 files changed, 0 insertions, 304 deletions
diff --git a/source4/nmbd/nmbd_namequery.c b/source4/nmbd/nmbd_namequery.c
deleted file mode 100644
index 8995e9ac52..0000000000
--- a/source4/nmbd/nmbd_namequery.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- 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 response packet when querying a name.
-****************************************************************************/
-
-static void query_name_response( struct subnet_record *subrec,
- struct response_record *rrec,
- struct packet_struct *p)
-{
- struct nmb_packet *nmb = &p->packet.nmb;
- BOOL success = False;
- struct nmb_name *question_name =
- &rrec->packet->packet.nmb.question.question_name;
- struct in_addr answer_ip;
-
- zero_ip(&answer_ip);
-
- /* Ensure we don't retry the query but leave the response record cleanup
- to the timeout code. We may get more answer responses in which case
- we should mark the name in conflict.. */
- rrec->repeat_count = 0;
-
- if(rrec->num_msgs == 1)
- {
- /* This is the first response. */
-
- if(nmb->header.opcode == NMB_WACK_OPCODE)
- {
- /* WINS server is telling us to wait. Pretend we didn't get
- the response but don't send out any more query requests. */
-
- if( DEBUGLVL( 5 ) )
- {
- dbgtext( "query_name_response: " );
- dbgtext( "WACK from WINS server %s ", inet_ntoa(p->ip) );
- dbgtext( "in querying name %s ", nmb_namestr(question_name) );
- dbgtext( "on subnet %s.\n", subrec->subnet_name );
- }
-
- rrec->repeat_count = 0;
- /* How long we should wait for. */
- rrec->repeat_time = p->timestamp + nmb->answers->ttl;
- rrec->num_msgs--;
- return;
- }
- else if(nmb->header.rcode != 0)
- {
- success = False;
-
- if( DEBUGLVL( 5 ) )
- {
- dbgtext( "query_name_response: On subnet %s ", subrec->subnet_name );
- dbgtext( "- negative response from IP %s ", inet_ntoa(p->ip) );
- dbgtext( "for name %s. ", nmb_namestr(question_name) );
- dbgtext( "Error code was %d.\n", nmb->header.rcode );
- }
- }
- else
- {
- if (!nmb->answers)
- {
- dbgtext( "query_name_response: On subnet %s ", subrec->subnet_name );
- dbgtext( "IP %s ", inet_ntoa(p->ip) );
- dbgtext( "returned a success response with no answer\n" );
- return;
- }
-
- success = True;
-
- putip((char *)&answer_ip,&nmb->answers->rdata[2]);
- if( DEBUGLVL( 5 ) )
- {
- dbgtext( "query_name_response: On subnet %s ", subrec->subnet_name );
- dbgtext( "- positive response from IP %s ", inet_ntoa(p->ip) );
- dbgtext( "for name %s. ", nmb_namestr(question_name) );
- dbgtext( "IP of that name is %s\n", inet_ntoa(answer_ip) );
- }
-
- /* Interestingly, we could add these names to our namelists, and
- change nmbd to a model that checked its own name cache first,
- before sending out a query. This is a task for another day, though.
- */
- }
- }
- else if( rrec->num_msgs > 1)
- {
- if( DEBUGLVL( 0 ) )
- {
- if (nmb->answers)
- putip( (char *)&answer_ip, &nmb->answers->rdata[2] );
- dbgtext( "query_name_response: " );
- dbgtext( "Multiple (%d) responses ", rrec->num_msgs );
- dbgtext( "received for a query on subnet %s ", subrec->subnet_name );
- dbgtext( "for name %s.\nThis response ", nmb_namestr(question_name) );
- dbgtext( "was from IP %s, reporting ", inet_ntoa(p->ip) );
- dbgtext( "an IP address of %s.\n", inet_ntoa(answer_ip) );
- }
-
- /* We have already called the success or fail function, so we
- don't call again here. Leave the response record around in
- case we get more responses. */
-
- return;
- }
-
- if(success && rrec->success_fn)
- (*(query_name_success_function)rrec->success_fn)(subrec, rrec->userdata, question_name, answer_ip, nmb->answers);
- else if( rrec->fail_fn)
- (*(query_name_fail_function)rrec->fail_fn)(subrec, rrec, question_name, nmb->header.rcode);
-
-}
-
-/****************************************************************************
- Deal with a timeout when querying a name.
-****************************************************************************/
-
-static void query_name_timeout_response(struct subnet_record *subrec,
- struct response_record *rrec)
-{
- struct nmb_packet *sent_nmb = &rrec->packet->packet.nmb;
- /* We can only fail here, never succeed. */
- BOOL failed = True;
- struct nmb_name *question_name = &sent_nmb->question.question_name;
-
- if(rrec->num_msgs != 0)
- {
- /* We got at least one response, and have called the success/fail
- function already. */
-
- failed = False;
- }
-
- if(failed)
- {
- if( DEBUGLVL( 5 ) )
- {
- dbgtext( "query_name_timeout_response: No response to " );
- dbgtext( "query for name %s ", nmb_namestr(question_name) );
- dbgtext( "on subnet %s.\n", subrec->subnet_name );
- }
- if(rrec->fail_fn)
- (*(query_name_fail_function)rrec->fail_fn)(subrec, rrec, question_name, 0);
- }
-
- remove_response_record(subrec, rrec);
-}
-
-/****************************************************************************
- Lookup a name on our local namelists. We check the lmhosts file first. If the
- name is not there we look for the name on the given subnet.
-****************************************************************************/
-
-static BOOL query_local_namelists(struct subnet_record *subrec, struct nmb_name *nmbname,
- struct name_record **namerecp)
-{
- struct name_record *namerec;
-
- *namerecp = NULL;
-
- if(find_name_in_lmhosts(nmbname, namerecp))
- return True;
-
- if((namerec = find_name_on_subnet(subrec, nmbname, FIND_ANY_NAME))==NULL)
- return False;
-
- if( NAME_IS_ACTIVE(namerec)
- && ( (namerec->data.source == SELF_NAME)
- || (namerec->data.source == LMHOSTS_NAME) ) )
- {
- *namerecp = namerec;
- return True;
- }
- return False;
-}
-
-/****************************************************************************
- Try and query for a name.
-****************************************************************************/
-
-BOOL query_name(struct subnet_record *subrec, char *name, int type,
- query_name_success_function success_fn,
- query_name_fail_function fail_fn,
- struct userdata_struct *userdata)
-{
- struct nmb_name nmbname;
- struct name_record *namerec;
-
- make_nmb_name(&nmbname, name, type);
-
- /*
- * We need to check our local namelists first.
- * It may be an magic name, lmhosts name or just
- * a name we have registered.
- */
-
- if(query_local_namelists(subrec, &nmbname, &namerec) == True)
- {
- struct res_rec rrec;
- int i;
-
- memset((char *)&rrec, '\0', sizeof(struct res_rec));
-
- /* Fake up the needed res_rec just in case it's used. */
- rrec.rr_name = nmbname;
- rrec.rr_type = RR_TYPE_NB;
- rrec.rr_class = RR_CLASS_IN;
- rrec.ttl = PERMANENT_TTL;
- rrec.rdlength = namerec->data.num_ips * 6;
- if(rrec.rdlength > MAX_DGRAM_SIZE)
- {
- if( DEBUGLVL( 0 ) )
- {
- dbgtext( "query_name: nmbd internal error - " );
- dbgtext( "there are %d ip addresses ", namerec->data.num_ips );
- dbgtext( "for name %s.\n", nmb_namestr(&nmbname) );
- }
- return False;
- }
-
- for( i = 0; i < namerec->data.num_ips; i++)
- {
- set_nb_flags( &rrec.rdata[i*6], namerec->data.nb_flags );
- putip( &rrec.rdata[(i*6) + 2], (char *)&namerec->data.ip[i]);
- }
-
- /* Call the success function directly. */
- if(success_fn)
- (*(query_name_success_function)success_fn)(subrec, userdata, &nmbname, namerec->data.ip[0], &rrec);
- return False;
- }
-
- if(queue_query_name( subrec,
- query_name_response,
- query_name_timeout_response,
- success_fn,
- fail_fn,
- userdata,
- &nmbname) == NULL)
- {
- if( DEBUGLVL( 0 ) )
- {
- dbgtext( "query_name: Failed to send packet " );
- dbgtext( "trying to query name %s\n", nmb_namestr(&nmbname) );
- }
- return True;
- }
- return False;
-}
-
-/****************************************************************************
- Try and query for a name from nmbd acting as a WINS server.
-****************************************************************************/
-
-BOOL query_name_from_wins_server(struct in_addr ip_to,
- char *name, int type,
- query_name_success_function success_fn,
- query_name_fail_function fail_fn,
- struct userdata_struct *userdata)
-{
- struct nmb_name nmbname;
-
- make_nmb_name(&nmbname, name, type);
-
- if(queue_query_name_from_wins_server( ip_to,
- query_name_response,
- query_name_timeout_response,
- success_fn,
- fail_fn,
- userdata,
- &nmbname) == NULL)
- {
- if( DEBUGLVL( 0 ) )
- {
- dbgtext( "query_name_from_wins_server: Failed to send packet " );
- dbgtext( "trying to query name %s\n", nmb_namestr(&nmbname) );
- }
- return True;
- }
- return False;
-}
generated by cgit (git 2.34.1) at 2024-12-18 03:50:14 +0000