mirror of
https://github.com/samba-team/samba.git
synced 2024-12-23 17:34:34 +03:00
64f0348a3f
back into the main tree.
For the cvs logs of all the files starting nmbd_*.c, look
in the JRA_NMBD_REWRITE branch. That branch has now been
discontinued.
Jeremy.
(This used to be commit d80b0cb645
)
185 lines
5.5 KiB
C
185 lines
5.5 KiB
C
/*
|
|
Unix SMB/Netbios implementation.
|
|
Version 1.9.
|
|
NBT netbios routines and daemon - version 2
|
|
Copyright (C) Andrew Tridgell 1994-1997
|
|
Copyright (C) Luke Kenneth Casson Leighton 1994-1997
|
|
Copyright (C) Jeremy Allison 1994-1997
|
|
|
|
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"
|
|
#include "smb.h"
|
|
|
|
extern int DEBUGLEVEL;
|
|
|
|
/* This is our local master browser list database. */
|
|
struct browse_cache_record *lmb_browserlist = NULL;
|
|
|
|
/***************************************************************************
|
|
Add a browser into the lmb list.
|
|
**************************************************************************/
|
|
|
|
static void add_to_lmb_browse_cache(struct browse_cache_record *browc)
|
|
{
|
|
struct browse_cache_record *browc2;
|
|
|
|
if (lmb_browserlist == NULL)
|
|
{
|
|
lmb_browserlist = browc;
|
|
browc->prev = NULL;
|
|
browc->next = NULL;
|
|
return;
|
|
}
|
|
|
|
for (browc2 = lmb_browserlist; browc2->next; browc2 = browc2->next)
|
|
;
|
|
|
|
browc2->next = browc;
|
|
browc->next = NULL;
|
|
browc->prev = browc2;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Remove a lmb browser entry.
|
|
******************************************************************/
|
|
|
|
void remove_lmb_browser_entry(struct browse_cache_record *browc)
|
|
{
|
|
if (browc->prev)
|
|
browc->prev->next = browc->next;
|
|
if (browc->next)
|
|
browc->next->prev = browc->prev;
|
|
|
|
if (lmb_browserlist == browc)
|
|
lmb_browserlist = browc->next;
|
|
|
|
free((char *)browc);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Update a browser death time.
|
|
****************************************************************************/
|
|
|
|
void update_browser_death_time(struct browse_cache_record *browc)
|
|
{
|
|
/* Allow the new lmb to miss an announce period before we remove it. */
|
|
browc->death_time = time(NULL) + (CHECK_TIME_MST_ANNOUNCE + 2)*60;
|
|
}
|
|
|
|
/****************************************************************************
|
|
Create a browser entry.
|
|
****************************************************************************/
|
|
|
|
struct browse_cache_record *create_browser_in_lmb_cache(char *work_name, char *browser_name,
|
|
struct in_addr ip)
|
|
{
|
|
struct browse_cache_record *browc;
|
|
time_t now = time(NULL);
|
|
|
|
browc = (struct browse_cache_record *)malloc(sizeof(*browc));
|
|
|
|
if (browc == NULL)
|
|
{
|
|
DEBUG(0,("create_browser_in_lmb_cache: malloc fail !\n"));
|
|
return(NULL);
|
|
}
|
|
|
|
bzero((char *)browc,sizeof(*browc));
|
|
|
|
/* For a new lmb entry we want to sync with it after one minute. This
|
|
will allow it time to send out a local announce and build its
|
|
browse list. */
|
|
|
|
browc->sync_time = now + 60;
|
|
|
|
/* Allow the new lmb to miss an announce period before we remove it. */
|
|
browc->death_time = now + (CHECK_TIME_MST_ANNOUNCE + 2)*60;
|
|
|
|
StrnCpy(browc->lmb_name, browser_name,sizeof(browc->lmb_name)-1);
|
|
StrnCpy(browc->work_group,work_name,sizeof(browc->work_group)-1);
|
|
strupper(browc->lmb_name);
|
|
strupper(browc->work_group);
|
|
|
|
browc->ip = ip;
|
|
|
|
add_to_lmb_browse_cache(browc);
|
|
|
|
DEBUG(3,("create_browser_in_lmb_cache: Added lmb cache entry for workgroup %s name %s IP %s ttl %d\n",
|
|
browc->work_group, browc->lmb_name, inet_ntoa(ip), browc->death_time));
|
|
|
|
return(browc);
|
|
}
|
|
|
|
/****************************************************************************
|
|
Find a browser entry.
|
|
****************************************************************************/
|
|
|
|
struct browse_cache_record *find_browser_in_lmb_cache( char *browser_name )
|
|
{
|
|
struct browse_cache_record *browc = NULL;
|
|
|
|
for( browc = lmb_browserlist; browc; browc = browc->next)
|
|
if(strequal( browser_name, browc->lmb_name))
|
|
break;
|
|
|
|
return browc;
|
|
}
|
|
|
|
/*******************************************************************
|
|
Expire timed out browsers in the browserlist.
|
|
******************************************************************/
|
|
|
|
void expire_lmb_browsers(time_t t)
|
|
{
|
|
struct browse_cache_record *browc;
|
|
struct browse_cache_record *nextbrowc;
|
|
|
|
for (browc = lmb_browserlist; browc; browc = nextbrowc)
|
|
{
|
|
nextbrowc = browc->next;
|
|
|
|
if (browc->death_time < t)
|
|
{
|
|
DEBUG(3,("expire_lmb_browsers: Removing timed out lmb entry %s\n",browc->lmb_name));
|
|
remove_lmb_browser_entry(browc);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************
|
|
Remove browsers from a named workgroup in the browserlist.
|
|
******************************************************************/
|
|
|
|
void remove_workgroup_lmb_browsers(char *work_group)
|
|
{
|
|
struct browse_cache_record *browc;
|
|
struct browse_cache_record *nextbrowc;
|
|
|
|
for (browc = lmb_browserlist; browc; browc = nextbrowc)
|
|
{
|
|
nextbrowc = browc->next;
|
|
|
|
if (strequal(work_group, browc->work_group))
|
|
{
|
|
DEBUG(3,("remove_workgroup_browsers: Removing lmb entry %s\n",browc->lmb_name));
|
|
remove_lmb_browser_entry(browc);
|
|
}
|
|
}
|
|
}
|
|
|