diff options
Diffstat (limited to 'source4/nmbd/nmbd_serverlistdb.c')
| -rw-r--r-- | source4/nmbd/nmbd_serverlistdb.c | 448 |
1 files changed, 0 insertions, 448 deletions
diff --git a/source4/nmbd/nmbd_serverlistdb.c b/source4/nmbd/nmbd_serverlistdb.c deleted file mode 100644 index ee0c021d5d..0000000000 --- a/source4/nmbd/nmbd_serverlistdb.c +++ /dev/null @@ -1,448 +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" - -extern int ClientNMB; - -int updatecount = 0; - -/******************************************************************* - Remove all the servers in a work group. - ******************************************************************/ - -void remove_all_servers(struct work_record *work) -{ - struct server_record *servrec; - struct server_record *nexts; - - for (servrec = work->serverlist; servrec; servrec = nexts) - { - DEBUG(7,("remove_all_servers: Removing server %s\n",servrec->serv.name)); - nexts = servrec->next; - - if (servrec->prev) - servrec->prev->next = servrec->next; - if (servrec->next) - servrec->next->prev = servrec->prev; - - if (work->serverlist == servrec) - work->serverlist = servrec->next; - - ZERO_STRUCTP(servrec); - SAFE_FREE(servrec); - - } - - work->subnet->work_changed = True; -} - -/*************************************************************************** - Add a server into the a workgroup serverlist. - **************************************************************************/ - -static void add_server_to_workgroup(struct work_record *work, - struct server_record *servrec) -{ - struct server_record *servrec2; - - if (!work->serverlist) - { - work->serverlist = servrec; - servrec->prev = NULL; - servrec->next = NULL; - return; - } - - for (servrec2 = work->serverlist; servrec2->next; servrec2 = servrec2->next) - ; - - servrec2->next = servrec; - servrec->next = NULL; - servrec->prev = servrec2; - work->subnet->work_changed = True; -} - -/**************************************************************************** - Find a server in a server list. - **************************************************************************/ - -struct server_record *find_server_in_workgroup(struct work_record *work, const char *name) -{ - struct server_record *ret; - - for (ret = work->serverlist; ret; ret = ret->next) - { - if (strequal(ret->serv.name,name)) - return ret; - } - return NULL; -} - - -/**************************************************************************** - Remove a server entry from this workgroup. - ****************************************************************************/ - -void remove_server_from_workgroup(struct work_record *work, struct server_record *servrec) -{ - if (servrec->prev) - servrec->prev->next = servrec->next; - if (servrec->next) - servrec->next->prev = servrec->prev; - - if (work->serverlist == servrec) - work->serverlist = servrec->next; - - ZERO_STRUCTP(servrec); - SAFE_FREE(servrec); - work->subnet->work_changed = True; -} - -/**************************************************************************** - Create a server entry on this workgroup. - ****************************************************************************/ - -struct server_record *create_server_on_workgroup(struct work_record *work, - const char *name,int servertype, - int ttl, const char *comment) -{ - struct server_record *servrec; - - if (name[0] == '*') - { - DEBUG(7,("create_server_on_workgroup: not adding name starting with '*' (%s)\n", - name)); - return (NULL); - } - - if((servrec = find_server_in_workgroup(work, name)) != NULL) - { - DEBUG(0,("create_server_on_workgroup: Server %s already exists on \ -workgroup %s. This is a bug.\n", name, work->work_group)); - return NULL; - } - - if((servrec = (struct server_record *)malloc(sizeof(*servrec))) == NULL) - { - DEBUG(0,("create_server_entry_on_workgroup: malloc fail !\n")); - return NULL; - } - - memset((char *)servrec,'\0',sizeof(*servrec)); - - servrec->subnet = work->subnet; - - StrnCpy(servrec->serv.name,name,sizeof(servrec->serv.name)-1); - StrnCpy(servrec->serv.comment,comment,sizeof(servrec->serv.comment)-1); - strupper(servrec->serv.name); - servrec->serv.type = servertype; - - update_server_ttl(servrec, ttl); - - add_server_to_workgroup(work, servrec); - - DEBUG(3,("create_server_on_workgroup: Created server entry %s of type %x (%s) on \ -workgroup %s.\n", name,servertype,comment, work->work_group)); - - work->subnet->work_changed = True; - - return(servrec); -} - -/******************************************************************* - Update the ttl field of a server record. -*******************************************************************/ - -void update_server_ttl(struct server_record *servrec, int ttl) -{ - if(ttl > lp_max_ttl()) - ttl = lp_max_ttl(); - - if(is_myname(servrec->serv.name)) - servrec->death_time = PERMANENT_TTL; - else - servrec->death_time = (ttl != PERMANENT_TTL) ? time(NULL)+(ttl*3) : PERMANENT_TTL; - - servrec->subnet->work_changed = True; -} - -/******************************************************************* - Expire old servers in the serverlist. A time of -1 indicates - everybody dies except those with a death_time of PERMANENT_TTL (which is 0). - This should only be called from expire_workgroups_and_servers(). - ******************************************************************/ - -void expire_servers(struct work_record *work, time_t t) -{ - struct server_record *servrec; - struct server_record *nexts; - - for (servrec = work->serverlist; servrec; servrec = nexts) - { - nexts = servrec->next; - - if ((servrec->death_time != PERMANENT_TTL) && ((t == -1) || (servrec->death_time < t))) - { - DEBUG(3,("expire_old_servers: Removing timed out server %s\n",servrec->serv.name)); - remove_server_from_workgroup(work, servrec); - work->subnet->work_changed = True; - } - } -} - -/******************************************************************* - Decide if we should write out a server record for this server. - We return zero if we should not. Check if we've already written - out this server record from an earlier subnet. -******************************************************************/ - -static uint32 write_this_server_name( struct subnet_record *subrec, - struct work_record *work, - struct server_record *servrec) -{ - struct subnet_record *ssub; - struct work_record *iwork; - - /* Go through all the subnets we have already seen. */ - for (ssub = FIRST_SUBNET; ssub != subrec; ssub = NEXT_SUBNET_INCLUDING_UNICAST(ssub)) - { - for(iwork = ssub->workgrouplist; iwork; iwork = iwork->next) - { - if(find_server_in_workgroup( iwork, servrec->serv.name) != NULL) - { - /* - * We have already written out this server record, don't - * do it again. This gives precedence to servers we have seen - * on the broadcast subnets over servers that may have been - * added via a sync on the unicast_subet. - * - * The correct way to do this is to have a serverlist file - * per subnet - this means changes to smbd as well. I may - * add this at a later date (JRA). - */ - - return 0; - } - } - } - - return servrec->serv.type; -} - -/******************************************************************* - Decide if we should write out a workgroup record for this workgroup. - We return zero if we should not. Don't write out lp_workgroup() (we've - already done it) and also don't write out a second workgroup record - on the unicast subnet that we've already written out on one of the - broadcast subnets. -******************************************************************/ - -static uint32 write_this_workgroup_name( struct subnet_record *subrec, - struct work_record *work) -{ - struct subnet_record *ssub; - - if(strequal(lp_workgroup(), work->work_group)) - return 0; - - /* This is a workgroup we have seen on a broadcast subnet. All - these have the same type. */ - - if(subrec != unicast_subnet) - return (SV_TYPE_DOMAIN_ENUM|SV_TYPE_NT|SV_TYPE_LOCAL_LIST_ONLY); - - for(ssub = FIRST_SUBNET; ssub; ssub = NEXT_SUBNET_EXCLUDING_UNICAST(ssub)) - { - /* This is the unicast subnet so check if we've already written out - this subnet when we passed over the broadcast subnets. */ - - if(find_workgroup_on_subnet( ssub, work->work_group) != NULL) - return 0; - } - - /* All workgroups on the unicast subnet (except our own, which we - have already written out) cannot be local. */ - - return (SV_TYPE_DOMAIN_ENUM|SV_TYPE_NT); -} - -/******************************************************************* - Write out the browse.dat file. - ******************************************************************/ - -void write_browse_list_entry(XFILE *fp, const char *name, uint32 rec_type, - const char *local_master_browser_name, const char *description) -{ - fstring tmp; - - slprintf(tmp,sizeof(tmp)-1, "\"%s\"", name); - x_fprintf(fp, "%-25s ", tmp); - x_fprintf(fp, "%08x ", rec_type); - slprintf(tmp, sizeof(tmp)-1, "\"%s\" ", local_master_browser_name); - x_fprintf(fp, "%-30s", tmp); - x_fprintf(fp, "\"%s\"\n", description); -} - -void write_browse_list(time_t t, BOOL force_write) -{ - struct subnet_record *subrec; - struct work_record *work; - struct server_record *servrec; - pstring fname,fnamenew; - uint32 stype; - int i; - XFILE *fp; - BOOL list_changed = force_write; - static time_t lasttime = 0; - - /* Always dump if we're being told to by a signal. */ - if(force_write == False) - { - if (!lasttime) - lasttime = t; - if (t - lasttime < 5) - return; - } - - lasttime = t; - - dump_workgroups(force_write); - - for (subrec = FIRST_SUBNET; subrec ; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) - { - if(subrec->work_changed) - { - list_changed = True; - break; - } - } - - if(!list_changed) - return; - - updatecount++; - - pstrcpy(fname,lp_lockdir()); - trim_string(fname,NULL,"/"); - pstrcat(fname,"/"); - pstrcat(fname,SERVER_LIST); - pstrcpy(fnamenew,fname); - pstrcat(fnamenew,"."); - - fp = x_fopen(fnamenew,O_WRONLY|O_CREAT|O_TRUNC, 0644); - - if (!fp) - { - DEBUG(0,("write_browse_list: Can't open file %s. Error was %s\n", - fnamenew,strerror(errno))); - return; - } - - /* - * Write out a record for our workgroup. Use the record from the first - * subnet. - */ - - if((work = find_workgroup_on_subnet(FIRST_SUBNET, lp_workgroup())) == NULL) - { - DEBUG(0,("write_browse_list: Fatal error - cannot find my workgroup %s\n", - lp_workgroup())); - x_fclose(fp); - return; - } - - write_browse_list_entry(fp, work->work_group, - SV_TYPE_DOMAIN_ENUM|SV_TYPE_NT|SV_TYPE_LOCAL_LIST_ONLY, - work->local_master_browser_name, work->work_group); - - /* - * We need to do something special for our own names. - * This is due to the fact that we may be a local master browser on - * one of our broadcast subnets, and a domain master on the unicast - * subnet. We iterate over the subnets and only write out the name - * once. - */ - - for (i=0; my_netbios_names(i); i++) - { - stype = 0; - for (subrec = FIRST_SUBNET; subrec ; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) - { - if((work = find_workgroup_on_subnet( subrec, lp_workgroup() )) == NULL) - continue; - if((servrec = find_server_in_workgroup( work, my_netbios_names(i))) == NULL) - continue; - - stype |= servrec->serv.type; - } - - /* Output server details, plus what workgroup they're in. */ - write_browse_list_entry(fp, my_netbios_names(i), stype, - string_truncate(lp_serverstring(), MAX_SERVER_STRING_LENGTH), lp_workgroup()); - } - - for (subrec = FIRST_SUBNET; subrec ; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) - { - subrec->work_changed = False; - - for (work = subrec->workgrouplist; work ; work = work->next) - { - /* Write out a workgroup record for a workgroup. */ - uint32 wg_type = write_this_workgroup_name( subrec, work); - - if(wg_type) - { - write_browse_list_entry(fp, work->work_group, wg_type, - work->local_master_browser_name, - work->work_group); - } - - /* Now write out any server records a workgroup may have. */ - - for (servrec = work->serverlist; servrec ; servrec = servrec->next) - { - uint32 serv_type; - - /* We have already written our names here. */ - if(is_myname(servrec->serv.name)) - continue; - - serv_type = write_this_server_name(subrec, work, servrec); - - if(serv_type) - { - /* Output server details, plus what workgroup they're in. */ - write_browse_list_entry(fp, servrec->serv.name, serv_type, - servrec->serv.comment, work->work_group); - } - } - } - } - - x_fclose(fp); - unlink(fname); - chmod(fnamenew,0644); - rename(fnamenew,fname); - DEBUG(3,("write_browse_list: Wrote browse list into file %s\n",fname)); -} |