#include "includes.h"
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;
struct in_addr *iplist;
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]);
}
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);
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;
}
}
}
reply_netbios_packet(original_packet,
0,
NMB_QUERY,
NMB_NAME_QUERY_OPCODE,
ttl,
rrec->rdata,
rrec->rdlength);
}
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) ));
}
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;
memcpy( new_userdata->data, userdata->data, sizeof(struct subnet_record *) );
memcpy((char *)&p, &userdata->data[sizeof(struct subnet_record *)],
sizeof(struct packet_struct *) );
if((copy_of_p = copy_packet(p)) == NULL)
{
SAFE_FREE(new_userdata);
return NULL;
}
copy_of_p->locked = True;
memcpy( &new_userdata->data[sizeof(struct subnet_record *)], (char *)©_of_p,
sizeof(struct packet_struct *) );
return new_userdata;
}
static void wins_proxy_userdata_free_fn(struct userdata_struct *userdata)
{
struct packet_struct *p;
memcpy((char *)&p, &userdata->data[sizeof(struct subnet_record *)],
sizeof(struct packet_struct *));
p->locked = False;
free_packet(p);
ZERO_STRUCTP(userdata);
SAFE_FREE(userdata);
}
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 *));
query_name( unicast_subnet, question_name->name, question_name->name_type,
wins_proxy_name_query_request_success,
wins_proxy_name_query_request_fail,
userdata);
}