mirror of
https://github.com/samba-team/samba.git
synced 2024-12-25 23:21:54 +03:00
7d2c68f2e2
Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org> Autobuild-Date(master): Mon Jul 17 12:41:21 UTC 2023 on atb-devel-224
690 lines
20 KiB
C
690 lines
20 KiB
C
/*
|
|
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"
|
|
#include "system/filesys.h"
|
|
#include "nmbd/nmbd.h"
|
|
|
|
uint16_t samba_nb_type = 0; /* samba's NetBIOS name type */
|
|
|
|
|
|
/**************************************************************************
|
|
Set Samba's NetBIOS name type.
|
|
***************************************************************************/
|
|
|
|
void set_samba_nb_type(void)
|
|
{
|
|
if( lp_we_are_a_wins_server() || wins_srv_count() ) {
|
|
samba_nb_type = NB_HFLAG; /* samba is a 'hybrid' node type. */
|
|
} else {
|
|
samba_nb_type = NB_BFLAG; /* samba is broadcast-only node type. */
|
|
}
|
|
}
|
|
|
|
/***************************************************************************
|
|
Convert a NetBIOS name to upper case.
|
|
***************************************************************************/
|
|
|
|
static bool upcase_name( struct nmb_name *target, const struct nmb_name *source )
|
|
{
|
|
int i;
|
|
unstring targ;
|
|
fstring scope;
|
|
|
|
if( NULL != source ) {
|
|
memcpy( target, source, sizeof( struct nmb_name ) );
|
|
}
|
|
|
|
pull_ascii_nstring(targ, sizeof(targ), target->name);
|
|
if (!strupper_m( targ )) {
|
|
return false;
|
|
}
|
|
push_ascii_nstring( target->name, targ);
|
|
|
|
pull_ascii(scope, target->scope, 64, -1, STR_TERMINATE);
|
|
if (!strupper_m( scope )) {
|
|
return false;
|
|
}
|
|
push_ascii(target->scope, scope, 64, STR_TERMINATE);
|
|
|
|
/* fudge... We're using a byte-by-byte compare, so we must be sure that
|
|
* unused space doesn't have garbage in it.
|
|
*/
|
|
|
|
for( i = strlen( target->name ); i < sizeof( target->name ); i++ ) {
|
|
target->name[i] = '\0';
|
|
}
|
|
for( i = strlen( target->scope ); i < sizeof( target->scope ); i++ ) {
|
|
target->scope[i] = '\0';
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**************************************************************************
|
|
Remove a name from the namelist.
|
|
***************************************************************************/
|
|
|
|
void remove_name_from_namelist(struct subnet_record *subrec,
|
|
struct name_record *namerec )
|
|
{
|
|
if (subrec == wins_server_subnet)
|
|
remove_name_from_wins_namelist(namerec);
|
|
else {
|
|
subrec->namelist_changed = True;
|
|
DLIST_REMOVE(subrec->namelist, namerec);
|
|
}
|
|
|
|
SAFE_FREE(namerec->data.ip);
|
|
ZERO_STRUCTP(namerec);
|
|
SAFE_FREE(namerec);
|
|
}
|
|
|
|
/**************************************************************************
|
|
Find a name in a subnet.
|
|
**************************************************************************/
|
|
|
|
struct name_record *find_name_on_subnet(struct subnet_record *subrec,
|
|
const struct nmb_name *nmbname,
|
|
bool self_only)
|
|
{
|
|
struct nmb_name uc_name;
|
|
struct name_record *name_ret;
|
|
|
|
if (!upcase_name( &uc_name, nmbname )) {
|
|
return NULL;
|
|
}
|
|
|
|
if (subrec == wins_server_subnet) {
|
|
return find_name_on_wins_subnet(&uc_name, self_only);
|
|
}
|
|
|
|
for( name_ret = subrec->namelist; name_ret; name_ret = name_ret->next) {
|
|
if (memcmp(&uc_name, &name_ret->name, sizeof(struct nmb_name)) == 0) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( name_ret ) {
|
|
/* Self names only - these include permanent names. */
|
|
if( self_only && (name_ret->data.source != SELF_NAME) && (name_ret->data.source != PERMANENT_NAME) ) {
|
|
DEBUG( 9, ( "find_name_on_subnet: on subnet %s - self name %s NOT FOUND\n",
|
|
subrec->subnet_name, nmb_namestr(nmbname) ) );
|
|
return NULL;
|
|
}
|
|
|
|
DEBUG( 9, ("find_name_on_subnet: on subnet %s - found name %s source=%d\n",
|
|
subrec->subnet_name, nmb_namestr(nmbname), name_ret->data.source) );
|
|
|
|
return name_ret;
|
|
}
|
|
|
|
DEBUG( 9, ( "find_name_on_subnet: on subnet %s - name %s NOT FOUND\n",
|
|
subrec->subnet_name, nmb_namestr(nmbname) ) );
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**************************************************************************
|
|
Find a name over all known broadcast subnets.
|
|
************************************************************************/
|
|
|
|
struct name_record *find_name_for_remote_broadcast_subnet(struct nmb_name *nmbname,
|
|
bool self_only)
|
|
{
|
|
struct subnet_record *subrec;
|
|
struct name_record *namerec;
|
|
|
|
for( subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec) ) {
|
|
namerec = find_name_on_subnet(subrec, nmbname, self_only);
|
|
if (namerec) {
|
|
return namerec;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**************************************************************************
|
|
Update the ttl of an entry in a subnet name list.
|
|
***************************************************************************/
|
|
|
|
void update_name_ttl( struct name_record *namerec, int ttl )
|
|
{
|
|
time_t time_now = time(NULL);
|
|
|
|
if( namerec->data.death_time != PERMANENT_TTL) {
|
|
namerec->data.death_time = time_now + ttl;
|
|
}
|
|
|
|
namerec->data.refresh_time = time_now + MIN((ttl/2), MAX_REFRESH_TIME);
|
|
|
|
if (namerec->subnet == wins_server_subnet) {
|
|
wins_store_changed_namerec(namerec);
|
|
} else {
|
|
namerec->subnet->namelist_changed = True;
|
|
}
|
|
}
|
|
|
|
/**************************************************************************
|
|
Add an entry to a subnet name list.
|
|
***********************************************************************/
|
|
|
|
bool add_name_to_subnet( struct subnet_record *subrec,
|
|
const char *name,
|
|
int type,
|
|
uint16_t nb_flags,
|
|
int ttl,
|
|
enum name_source source,
|
|
int num_ips,
|
|
struct in_addr *iplist)
|
|
{
|
|
bool ret = False;
|
|
struct name_record *namerec;
|
|
time_t time_now = time(NULL);
|
|
|
|
if (num_ips == 0) {
|
|
return false;
|
|
}
|
|
|
|
namerec = SMB_MALLOC_P(struct name_record);
|
|
if( NULL == namerec ) {
|
|
DEBUG( 0, ( "add_name_to_subnet: malloc fail.\n" ) );
|
|
return False;
|
|
}
|
|
|
|
memset( (char *)namerec, '\0', sizeof(*namerec) );
|
|
namerec->data.ip = SMB_MALLOC_ARRAY( struct in_addr, num_ips );
|
|
if( NULL == namerec->data.ip ) {
|
|
DEBUG( 0, ( "add_name_to_subnet: malloc fail when creating ip_flgs.\n" ) );
|
|
ZERO_STRUCTP(namerec);
|
|
SAFE_FREE(namerec);
|
|
return False;
|
|
}
|
|
|
|
namerec->subnet = subrec;
|
|
|
|
make_nmb_name(&namerec->name, name, type);
|
|
if (!upcase_name(&namerec->name, NULL )) {
|
|
SAFE_FREE(namerec->data.ip);
|
|
SAFE_FREE(namerec);
|
|
return False;
|
|
}
|
|
|
|
/* Enter the name as active. */
|
|
namerec->data.nb_flags = nb_flags | NB_ACTIVE;
|
|
namerec->data.wins_flags = WINS_ACTIVE;
|
|
|
|
/* If it's our primary name, flag it as so. */
|
|
if (strequal( my_netbios_names(0), name )) {
|
|
namerec->data.nb_flags |= NB_PERM;
|
|
}
|
|
|
|
/* Copy the IPs. */
|
|
namerec->data.num_ips = num_ips;
|
|
memcpy( (namerec->data.ip), iplist, num_ips * sizeof(struct in_addr) );
|
|
|
|
/* Data source. */
|
|
namerec->data.source = source;
|
|
|
|
/* Setup the death_time and refresh_time. */
|
|
if (ttl == PERMANENT_TTL) {
|
|
namerec->data.death_time = PERMANENT_TTL;
|
|
} else {
|
|
namerec->data.death_time = time_now + ttl;
|
|
}
|
|
|
|
namerec->data.refresh_time = time_now + MIN((ttl/2), MAX_REFRESH_TIME);
|
|
|
|
DEBUG( 3, ( "add_name_to_subnet: Added netbios name %s with first IP %s \
|
|
ttl=%d nb_flags=%2x to subnet %s\n",
|
|
nmb_namestr( &namerec->name ),
|
|
inet_ntoa( *iplist ),
|
|
ttl,
|
|
(unsigned int)nb_flags,
|
|
subrec->subnet_name ) );
|
|
|
|
/* Now add the record to the name list. */
|
|
|
|
if (subrec == wins_server_subnet) {
|
|
ret = add_name_to_wins_subnet(namerec);
|
|
/* Free namerec - it's stored in the tdb. */
|
|
SAFE_FREE(namerec->data.ip);
|
|
SAFE_FREE(namerec);
|
|
} else {
|
|
DLIST_ADD(subrec->namelist, namerec);
|
|
subrec->namelist_changed = True;
|
|
ret = True;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function automatically called when a name refresh or register
|
|
succeeds. By definition this is a SELF_NAME (or we wouldn't be registering
|
|
it).
|
|
******************************************************************/
|
|
|
|
void standard_success_register(struct subnet_record *subrec,
|
|
struct userdata_struct *userdata,
|
|
struct nmb_name *nmbname, uint16_t nb_flags, int ttl,
|
|
struct in_addr registered_ip)
|
|
{
|
|
struct name_record *namerec;
|
|
|
|
namerec = find_name_on_subnet( subrec, nmbname, FIND_SELF_NAME);
|
|
if (namerec == NULL) {
|
|
unstring name;
|
|
pull_ascii_nstring(name, sizeof(name), nmbname->name);
|
|
add_name_to_subnet( subrec, name, nmbname->name_type,
|
|
nb_flags, ttl, SELF_NAME, 1, ®istered_ip );
|
|
} else {
|
|
update_name_ttl( namerec, ttl );
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function automatically called when a name refresh or register
|
|
fails. Note that this is only ever called on a broadcast subnet with
|
|
one IP address per name. This is why it can just delete the name
|
|
without enumerating the IP addresses. JRA.
|
|
******************************************************************/
|
|
|
|
void standard_fail_register( struct subnet_record *subrec,
|
|
struct nmb_name *nmbname )
|
|
{
|
|
struct name_record *namerec;
|
|
|
|
namerec = find_name_on_subnet( subrec, nmbname, FIND_SELF_NAME);
|
|
|
|
DEBUG( 0, ( "standard_fail_register: Failed to register/refresh name %s \
|
|
on subnet %s\n", nmb_namestr(nmbname), subrec->subnet_name) );
|
|
|
|
/* Remove the name from the subnet. */
|
|
if( namerec ) {
|
|
remove_name_from_namelist(subrec, namerec);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function to remove an IP address from a name record.
|
|
******************************************************************/
|
|
|
|
static void remove_nth_ip_in_record( struct name_record *namerec, int ind)
|
|
{
|
|
if( ind != namerec->data.num_ips ) {
|
|
memmove( (char *)(&namerec->data.ip[ind]),
|
|
(char *)(&namerec->data.ip[ind+1]),
|
|
( namerec->data.num_ips - ind - 1) * sizeof(struct in_addr) );
|
|
}
|
|
|
|
namerec->data.num_ips--;
|
|
if (namerec->subnet == wins_server_subnet) {
|
|
wins_store_changed_namerec(namerec);
|
|
} else {
|
|
namerec->subnet->namelist_changed = True;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function to check if an IP address exists in a name record.
|
|
******************************************************************/
|
|
|
|
bool find_ip_in_name_record( struct name_record *namerec, struct in_addr ip )
|
|
{
|
|
int i;
|
|
|
|
for(i = 0; i < namerec->data.num_ips; i++) {
|
|
if(ip_equal_v4( namerec->data.ip[i], ip)) {
|
|
return True;
|
|
}
|
|
}
|
|
|
|
return False;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function to add an IP address to a name record.
|
|
******************************************************************/
|
|
|
|
void add_ip_to_name_record( struct name_record *namerec, struct in_addr new_ip )
|
|
{
|
|
struct in_addr *new_list;
|
|
|
|
/* Don't add one we already have. */
|
|
if( find_ip_in_name_record( namerec, new_ip )) {
|
|
return;
|
|
}
|
|
|
|
new_list = SMB_MALLOC_ARRAY( struct in_addr, namerec->data.num_ips + 1);
|
|
if( NULL == new_list ) {
|
|
DEBUG(0,("add_ip_to_name_record: Malloc fail !\n"));
|
|
return;
|
|
}
|
|
|
|
memcpy( (char *)new_list, (char *)namerec->data.ip, namerec->data.num_ips * sizeof(struct in_addr) );
|
|
new_list[namerec->data.num_ips] = new_ip;
|
|
|
|
SAFE_FREE(namerec->data.ip);
|
|
namerec->data.ip = new_list;
|
|
namerec->data.num_ips += 1;
|
|
|
|
if (namerec->subnet == wins_server_subnet) {
|
|
wins_store_changed_namerec(namerec);
|
|
} else {
|
|
namerec->subnet->namelist_changed = True;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function to remove an IP address from a name record.
|
|
******************************************************************/
|
|
|
|
void remove_ip_from_name_record( struct name_record *namerec,
|
|
struct in_addr remove_ip )
|
|
{
|
|
/* Try and find the requested ip address - remove it. */
|
|
int i;
|
|
int orig_num = namerec->data.num_ips;
|
|
|
|
for(i = 0; i < orig_num; i++) {
|
|
if( ip_equal_v4( remove_ip, namerec->data.ip[i]) ) {
|
|
remove_nth_ip_in_record( namerec, i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Utility function that release_name callers can plug into as the
|
|
success function when a name release is successful. Used to save
|
|
duplication of success_function code.
|
|
******************************************************************/
|
|
|
|
void standard_success_release( struct subnet_record *subrec,
|
|
struct userdata_struct *userdata,
|
|
struct nmb_name *nmbname,
|
|
struct in_addr released_ip )
|
|
{
|
|
struct name_record *namerec;
|
|
|
|
namerec = find_name_on_subnet( subrec, nmbname, FIND_ANY_NAME );
|
|
if( namerec == NULL ) {
|
|
DEBUG( 0, ( "standard_success_release: Name release for name %s IP %s \
|
|
on subnet %s. Name was not found on subnet.\n", nmb_namestr(nmbname), inet_ntoa(released_ip),
|
|
subrec->subnet_name) );
|
|
return;
|
|
} else {
|
|
int orig_num = namerec->data.num_ips;
|
|
|
|
remove_ip_from_name_record( namerec, released_ip );
|
|
|
|
if( namerec->data.num_ips == orig_num ) {
|
|
DEBUG( 0, ( "standard_success_release: Name release for name %s IP %s \
|
|
on subnet %s. This ip is not known for this name.\n", nmb_namestr(nmbname), inet_ntoa(released_ip), subrec->subnet_name ) );
|
|
}
|
|
}
|
|
|
|
if( namerec->data.num_ips == 0 ) {
|
|
remove_name_from_namelist( subrec, namerec );
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Expires old names in a subnet namelist.
|
|
NB. Does not touch the wins_subnet - no wins specific processing here.
|
|
******************************************************************/
|
|
|
|
static void expire_names_on_subnet(struct subnet_record *subrec, time_t t)
|
|
{
|
|
struct name_record *namerec;
|
|
struct name_record *next_namerec;
|
|
|
|
for( namerec = subrec->namelist; namerec; namerec = next_namerec ) {
|
|
next_namerec = namerec->next;
|
|
if( (namerec->data.death_time != PERMANENT_TTL) && (namerec->data.death_time < t) ) {
|
|
if( namerec->data.source == SELF_NAME ) {
|
|
DEBUG( 3, ( "expire_names_on_subnet: Subnet %s not expiring SELF \
|
|
name %s\n", subrec->subnet_name, nmb_namestr(&namerec->name) ) );
|
|
namerec->data.death_time += 300;
|
|
namerec->subnet->namelist_changed = True;
|
|
continue;
|
|
}
|
|
|
|
DEBUG(3,("expire_names_on_subnet: Subnet %s - removing expired name %s\n",
|
|
subrec->subnet_name, nmb_namestr(&namerec->name)));
|
|
|
|
remove_name_from_namelist(subrec, namerec );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Expires old names in all subnet namelists.
|
|
NB. Does not touch the wins_subnet.
|
|
******************************************************************/
|
|
|
|
void expire_names(time_t t)
|
|
{
|
|
struct subnet_record *subrec;
|
|
|
|
for( subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec) ) {
|
|
expire_names_on_subnet( subrec, t );
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
Add the magic samba names, useful for finding samba servers.
|
|
These go directly into the name list for a particular subnet,
|
|
without going through the normal registration process.
|
|
When adding them to the unicast subnet, add them as a list of
|
|
all broadcast subnet IP addresses.
|
|
**************************************************************************/
|
|
|
|
void add_samba_names_to_subnet( struct subnet_record *subrec )
|
|
{
|
|
struct in_addr *iplist = &subrec->myip;
|
|
int num_ips = 1;
|
|
|
|
/* These names are added permanently (ttl of zero) and will NOT be refreshed. */
|
|
|
|
if( (subrec == unicast_subnet) || (subrec == wins_server_subnet) || (subrec == remote_broadcast_subnet) ) {
|
|
struct subnet_record *bcast_subrecs;
|
|
int i;
|
|
|
|
/* Create an IP list containing all our known subnets. */
|
|
|
|
num_ips = iface_count();
|
|
iplist = SMB_MALLOC_ARRAY( struct in_addr, num_ips);
|
|
if( NULL == iplist ) {
|
|
DEBUG(0,("add_samba_names_to_subnet: Malloc fail !\n"));
|
|
return;
|
|
}
|
|
|
|
for( bcast_subrecs = FIRST_SUBNET, i = 0; bcast_subrecs &&
|
|
i < num_ips;
|
|
bcast_subrecs = NEXT_SUBNET_EXCLUDING_UNICAST(bcast_subrecs), i++ ) {
|
|
iplist[i] = bcast_subrecs->myip;
|
|
}
|
|
num_ips = i;
|
|
}
|
|
|
|
add_name_to_subnet(subrec,"*",0x0,samba_nb_type, PERMANENT_TTL,
|
|
PERMANENT_NAME, num_ips, iplist);
|
|
add_name_to_subnet(subrec,"*",0x20,samba_nb_type,PERMANENT_TTL,
|
|
PERMANENT_NAME, num_ips, iplist);
|
|
add_name_to_subnet(subrec,"__SAMBA__",0x20,samba_nb_type,PERMANENT_TTL,
|
|
PERMANENT_NAME, num_ips, iplist);
|
|
add_name_to_subnet(subrec,"__SAMBA__",0x00,samba_nb_type,PERMANENT_TTL,
|
|
PERMANENT_NAME, num_ips, iplist);
|
|
|
|
if(iplist != &subrec->myip) {
|
|
SAFE_FREE(iplist);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
Dump a name_record struct.
|
|
**************************************************************************/
|
|
|
|
void dump_name_record( struct name_record *namerec, FILE *fp)
|
|
{
|
|
const char *src_type;
|
|
struct tm *tm;
|
|
int i;
|
|
|
|
fprintf(fp,"\tName = %s\t", nmb_namestr(&namerec->name));
|
|
switch(namerec->data.source) {
|
|
case LMHOSTS_NAME:
|
|
src_type = "LMHOSTS_NAME";
|
|
break;
|
|
case WINS_PROXY_NAME:
|
|
src_type = "WINS_PROXY_NAME";
|
|
break;
|
|
case REGISTER_NAME:
|
|
src_type = "REGISTER_NAME";
|
|
break;
|
|
case SELF_NAME:
|
|
src_type = "SELF_NAME";
|
|
break;
|
|
case DNS_NAME:
|
|
src_type = "DNS_NAME";
|
|
break;
|
|
case DNSFAIL_NAME:
|
|
src_type = "DNSFAIL_NAME";
|
|
break;
|
|
case PERMANENT_NAME:
|
|
src_type = "PERMANENT_NAME";
|
|
break;
|
|
default:
|
|
src_type = "unknown!";
|
|
break;
|
|
}
|
|
|
|
fprintf(fp, "Source = %s\nb_flags = %x\t", src_type,
|
|
namerec->data.nb_flags);
|
|
|
|
if(namerec->data.death_time != PERMANENT_TTL) {
|
|
const char *asct;
|
|
tm = localtime(&namerec->data.death_time);
|
|
if (!tm) {
|
|
return;
|
|
}
|
|
asct = asctime(tm);
|
|
if (!asct) {
|
|
return;
|
|
}
|
|
fprintf(fp, "death_time = %s\t", asct);
|
|
} else {
|
|
fprintf(fp, "death_time = PERMANENT\t");
|
|
}
|
|
|
|
if(namerec->data.refresh_time != PERMANENT_TTL) {
|
|
const char *asct;
|
|
tm = localtime(&namerec->data.refresh_time);
|
|
if (!tm) {
|
|
return;
|
|
}
|
|
asct = asctime(tm);
|
|
if (!asct) {
|
|
return;
|
|
}
|
|
fprintf(fp, "refresh_time = %s\n", asct);
|
|
} else {
|
|
fprintf(fp, "refresh_time = PERMANENT\n");
|
|
}
|
|
|
|
fprintf(fp, "\t\tnumber of IPS = %d", namerec->data.num_ips);
|
|
for(i = 0; i < namerec->data.num_ips; i++) {
|
|
fprintf(fp, "\t%s", inet_ntoa(namerec->data.ip[i]));
|
|
}
|
|
|
|
fprintf(fp, "\n\n");
|
|
}
|
|
|
|
/****************************************************************************
|
|
Dump the contents of the namelists on all the subnets (including unicast)
|
|
into a file. Initiated by SIGHUP - used to debug the state of the namelists.
|
|
**************************************************************************/
|
|
|
|
static void dump_subnet_namelist(struct subnet_record *subrec, FILE *fp)
|
|
{
|
|
struct name_record *namerec;
|
|
fprintf(fp, "Subnet %s\n----------------------\n", subrec->subnet_name);
|
|
for( namerec = subrec->namelist; namerec; namerec = namerec->next) {
|
|
dump_name_record(namerec, fp);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
Dump the contents of the namelists on all the subnets (including unicast)
|
|
into a file. Initiated by SIGHUP - used to debug the state of the namelists.
|
|
**************************************************************************/
|
|
|
|
void dump_all_namelists(void)
|
|
{
|
|
int fd;
|
|
FILE *fp;
|
|
struct subnet_record *subrec;
|
|
char *dump_path;
|
|
|
|
dump_path = lock_path(talloc_tos(), "namelist.debug");
|
|
if (dump_path == NULL) {
|
|
DEBUG(0, ("out of memory!\n"));
|
|
return;
|
|
}
|
|
|
|
fd = open(dump_path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
|
|
if (fd == -1) {
|
|
DBG_ERR("Can't open file %s: %s\n", dump_path,
|
|
strerror(errno));
|
|
return;
|
|
}
|
|
TALLOC_FREE(dump_path);
|
|
|
|
fp = fdopen(fd, "w");
|
|
if (!fp) {
|
|
DBG_ERR("fdopen failed: %s\n", strerror(errno));
|
|
close(fd);
|
|
return;
|
|
}
|
|
fd = -1;
|
|
|
|
for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) {
|
|
dump_subnet_namelist( subrec, fp );
|
|
}
|
|
|
|
if (!we_are_a_wins_client()) {
|
|
dump_subnet_namelist( unicast_subnet, fp );
|
|
}
|
|
|
|
if (remote_broadcast_subnet->namelist != NULL) {
|
|
dump_subnet_namelist( remote_broadcast_subnet, fp );
|
|
}
|
|
|
|
if (wins_server_subnet != NULL) {
|
|
dump_wins_subnet_namelist(fp );
|
|
}
|
|
|
|
fclose( fp );
|
|
}
|