diff options
Diffstat (limited to 'source4/nmbd/nmbd_winsproxy.c')
-rw-r--r-- | source4/nmbd/nmbd_winsproxy.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/source4/nmbd/nmbd_winsproxy.c b/source4/nmbd/nmbd_winsproxy.c deleted file mode 100644 index 2e65ebb612..0000000000 --- a/source4/nmbd/nmbd_winsproxy.c +++ /dev/null @@ -1,221 +0,0 @@ -/* - Unix SMB/CIFS implementation. - NBT netbios routines and daemon - version 2 - - 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" - -/**************************************************************************** -Function called when the name lookup succeeded. -****************************************************************************/ - -static void wins_proxy_name_query_request_success( struct subnet_record *subrec, - struct userdata_struct *userdata, - struct nmb_name *nmbname, struct in_addr ip, struct res_rec *rrec) -{ - struct packet_struct *original_packet; - struct subnet_record *orig_broadcast_subnet; - struct name_record *namerec; - uint16 nb_flags; - int num_ips; - int i; - int ttl = 3600; /* By default one hour in the cache. */ - struct in_addr *iplist; - - /* Extract the original packet and the original broadcast subnet from - the userdata. */ - - memcpy( (char *)&orig_broadcast_subnet, userdata->data, sizeof(struct subnet_record *) ); - memcpy( (char *)&original_packet, &userdata->data[sizeof(struct subnet_record *)], - sizeof(struct packet_struct *) ); - - nb_flags = get_nb_flags( rrec->rdata ); - - num_ips = rrec->rdlength / 6; - if(num_ips == 0) - { - DEBUG(0,("wins_proxy_name_query_request_success: Invalid number of IP records (0) \ -returned for name %s.\n", nmb_namestr(nmbname) )); - return; - } - - if(num_ips == 1) - iplist = &ip; - else - { - if((iplist = (struct in_addr *)malloc( num_ips * sizeof(struct in_addr) )) == NULL) - { - DEBUG(0,("wins_proxy_name_query_request_success: malloc fail !\n")); - return; - } - - for(i = 0; i < num_ips; i++) - putip( (char *)&iplist[i], (char *)&rrec->rdata[ (i*6) + 2]); - } - - /* Add the queried name to the original subnet as a WINS_PROXY_NAME. */ - - if(rrec == PERMANENT_TTL) - ttl = lp_max_ttl(); - - namerec = add_name_to_subnet( orig_broadcast_subnet, nmbname->name, - nmbname->name_type, nb_flags, ttl, - WINS_PROXY_NAME, num_ips, iplist ); - - if(iplist != &ip) - SAFE_FREE(iplist); - - /* - * Check that none of the IP addresses we are returning is on the - * same broadcast subnet as the original requesting packet. If it - * is then don't reply (although we still need to add the name - * to the cache) as the actual machine will be replying also - * and we don't want two replies to a broadcast query. - */ - - if(namerec && original_packet->packet.nmb.header.nm_flags.bcast) - { - for( i = 0; i < namerec->data.num_ips; i++) - { - if( same_net( namerec->data.ip[i], - orig_broadcast_subnet->myip, - orig_broadcast_subnet->mask_ip ) ) - { - DEBUG( 5, ( "wins_proxy_name_query_request_success: name %s is a WINS \ -proxy name and is also on the same subnet (%s) as the requestor. \ -Not replying.\n", - nmb_namestr(&namerec->name), - orig_broadcast_subnet->subnet_name ) ); - return; - } - } - } - - /* Finally reply to the original name query. */ - reply_netbios_packet(original_packet, /* Packet to reply to. */ - 0, /* Result code. */ - NMB_QUERY, /* nmbd type code. */ - NMB_NAME_QUERY_OPCODE, /* opcode. */ - ttl, /* ttl. */ - rrec->rdata, /* data to send. */ - rrec->rdlength); /* data length. */ -} - -/**************************************************************************** -Function called when the name lookup failed. -****************************************************************************/ - -static void wins_proxy_name_query_request_fail(struct subnet_record *subrec, - struct response_record *rrec, - struct nmb_name *question_name, int fail_code) -{ - DEBUG(4,("wins_proxy_name_query_request_fail: WINS server returned error code %d for lookup \ -of name %s.\n", fail_code, nmb_namestr(question_name) )); -} - -/**************************************************************************** -Function to make a deep copy of the userdata we will need when the WINS -proxy query returns. -****************************************************************************/ - -static struct userdata_struct *wins_proxy_userdata_copy_fn(struct userdata_struct *userdata) -{ - struct packet_struct *p, *copy_of_p; - struct userdata_struct *new_userdata = - (struct userdata_struct *)malloc( userdata->userdata_len ); - - if(new_userdata == NULL) - return NULL; - - new_userdata->copy_fn = userdata->copy_fn; - new_userdata->free_fn = userdata->free_fn; - new_userdata->userdata_len = userdata->userdata_len; - - /* Copy the subnet_record pointer. */ - memcpy( new_userdata->data, userdata->data, sizeof(struct subnet_record *) ); - - /* Extract the pointer to the packet struct */ - memcpy((char *)&p, &userdata->data[sizeof(struct subnet_record *)], - sizeof(struct packet_struct *) ); - - /* Do a deep copy of the packet. */ - if((copy_of_p = copy_packet(p)) == NULL) - { - SAFE_FREE(new_userdata); - return NULL; - } - - /* Lock the copy. */ - copy_of_p->locked = True; - - memcpy( &new_userdata->data[sizeof(struct subnet_record *)], (char *)©_of_p, - sizeof(struct packet_struct *) ); - - return new_userdata; -} - -/**************************************************************************** -Function to free the deep copy of the userdata we used when the WINS -proxy query returned. -****************************************************************************/ - -static void wins_proxy_userdata_free_fn(struct userdata_struct *userdata) -{ - struct packet_struct *p; - - /* Extract the pointer to the packet struct */ - memcpy((char *)&p, &userdata->data[sizeof(struct subnet_record *)], - sizeof(struct packet_struct *)); - - /* Unlock the packet. */ - p->locked = False; - - free_packet(p); - ZERO_STRUCTP(userdata); - SAFE_FREE(userdata); -} - -/**************************************************************************** - Make a WINS query on behalf of a broadcast client name query request. -****************************************************************************/ - -void make_wins_proxy_name_query_request( struct subnet_record *subrec, - struct packet_struct *incoming_packet, - struct nmb_name *question_name) -{ - long *ud[(sizeof(struct userdata_struct) + sizeof(struct subrec *) + - sizeof(struct packet_struct *))/sizeof(long *) + 1]; - struct userdata_struct *userdata = (struct userdata_struct *)ud; - - memset(ud, '\0', sizeof(ud)); - - userdata->copy_fn = wins_proxy_userdata_copy_fn; - userdata->free_fn = wins_proxy_userdata_free_fn; - userdata->userdata_len = sizeof(ud); - memcpy( userdata->data, (char *)&subrec, sizeof(struct subnet_record *)); - memcpy( &userdata->data[sizeof(struct subnet_record *)], (char *)&incoming_packet, - sizeof(struct packet_struct *)); - - /* Now use the unicast subnet to query the name with the WINS server. */ - query_name( unicast_subnet, question_name->name, question_name->name_type, - wins_proxy_name_query_request_success, - wins_proxy_name_query_request_fail, - userdata); -} |