diff options
Diffstat (limited to 'source3/namedbsubnet.c')
| -rw-r--r-- | source3/namedbsubnet.c | 400 |
1 files changed, 0 insertions, 400 deletions
diff --git a/source3/namedbsubnet.c b/source3/namedbsubnet.c deleted file mode 100644 index 816203ea3c..0000000000 --- a/source3/namedbsubnet.c +++ /dev/null @@ -1,400 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 1.9. - NBT netbios routines and daemon - version 2 - Copyright (C) Andrew Tridgell 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. - - Revision History: - - 14 jan 96: lkcl@pires.co.uk - added multiple workgroup domain master support - - 04 jul 96: lkcl@pires.co.uk - created module namedbsubnet containing subnet database functions - -*/ - -#include "includes.h" -#include "smb.h" - -extern int ClientNMB; -extern int ClientDGRAM; -extern int global_nmb_port; - -extern int DEBUGLEVEL; - -extern struct in_addr wins_ip; -extern struct in_addr ipzero; - -extern pstring myname; -extern fstring myworkgroup; -extern char **my_netbios_names; - -BOOL updatedlists = True; -int updatecount = 0; - -/* local interfaces structure */ -extern struct interface *local_interfaces; - -/* this is our domain/workgroup/server database */ -struct subnet_record *subnetlist = NULL; - -/* WINS subnet - keep this separate so enumeration code doesn't - run onto it by mistake. */ -struct subnet_record *wins_client_subnet = NULL; - -extern uint16 nb_type; /* samba's NetBIOS name type */ - -/**************************************************************************** - add a domain into the list - **************************************************************************/ -static void add_subnet(struct subnet_record *d) -{ - struct subnet_record *d2; - - if (!subnetlist) - { - subnetlist = d; - d->prev = NULL; - d->next = NULL; - return; - } - - for (d2 = subnetlist; d2->next; d2 = d2->next); - - d2->next = d; - d->next = NULL; - d->prev = d2; -} - - -/**************************************************************************** - find a subnet in the subnetlist that a given IP address could - match - not including WINS. Returns NULL if no match. - **************************************************************************/ -struct subnet_record *find_subnet(struct in_addr ip) -{ - struct subnet_record *d = NULL; - - /* search through subnet list for broadcast/netmask that matches - the source ip address. */ - - for (d = FIRST_SUBNET; d; d = NEXT_SUBNET_EXCLUDING_WINS(d)) - { - if (same_net(ip, d->bcast_ip, d->mask_ip)) - break; - } - - return d; -} - -/**************************************************************************** - find a subnet in the subnetlist - if the subnet is not found - then return the WINS client subnet. - **************************************************************************/ -struct subnet_record *find_subnet_all(struct in_addr ip) -{ - struct subnet_record *d = find_subnet(ip); - if(!d) - return wins_client_subnet; - return d; -} - -/**************************************************************************** - create a subnet entry - ****************************************************************************/ -static struct subnet_record *make_subnet(struct in_addr myip, struct in_addr bcast_ip, - struct in_addr mask_ip, BOOL add) -{ - struct subnet_record *d = NULL; - int nmb_sock, dgram_sock; - - /* Check if we are creating the WINS subnet - if so don't create - sockets, use the ClientNMB and ClientDGRAM sockets instead. - */ - - if(ip_equal(bcast_ip, wins_ip)) - { - nmb_sock = -1; - dgram_sock = -1; - } - else - { - /* - * Attempt to open the sockets on port 137/138 for this interface - * and bind them. - * Fail the subnet creation if this fails. - */ - - if((nmb_sock = open_socket_in(SOCK_DGRAM, global_nmb_port,0, myip.s_addr)) == -1) - { - DEBUG(0,("make_subnet: Failed to open nmb socket on interface %s \ -for port %d. Error was %s\n", inet_ntoa(myip), global_nmb_port, strerror(errno))); - return NULL; - } - - if((dgram_sock = open_socket_in(SOCK_DGRAM,DGRAM_PORT,3, myip.s_addr)) == -1) - { - DEBUG(0,("make_subnet: Failed to open dgram socket on interface %s \ -for port %d. Error was %s\n", inet_ntoa(myip), DGRAM_PORT, strerror(errno))); - return NULL; - } - - /* Make sure we can broadcast from these sockets. */ - set_socket_options(nmb_sock,"SO_BROADCAST"); - set_socket_options(dgram_sock,"SO_BROADCAST"); - - } - - d = (struct subnet_record *)malloc(sizeof(*d)); - - if (!d) - { - DEBUG(0,("make_subnet: malloc fail !\n")); - close(nmb_sock); - close(dgram_sock); - return(NULL); - } - - bzero((char *)d,sizeof(*d)); - - DEBUG(4, ("making subnet %s ", inet_ntoa(bcast_ip))); - DEBUG(4, ("%s\n", inet_ntoa(mask_ip))); - - d->bcast_ip = bcast_ip; - d->mask_ip = mask_ip; - d->myip = myip; - d->nmb_sock = nmb_sock; - d->dgram_sock = dgram_sock; - d->workgrouplist = NULL; - - if(add) - add_subnet(d); - - return d; -} - -/**************************************************************************** - add a domain entry. creates a workgroup, if necessary, and adds the domain - to the named a workgroup. - ****************************************************************************/ -static struct subnet_record *add_subnet_entry(struct in_addr myip, - struct in_addr bcast_ip, - struct in_addr mask_ip, char *name, - BOOL create_subnets, BOOL add) -{ - struct subnet_record *d = NULL; - - if (zero_ip(bcast_ip)) - bcast_ip = *iface_bcast(bcast_ip); - - /* Note that we should also add into the WINS subnet as add_subnet_entry - should be called to add NetBIOS names and server entries on all - interfaces, including the WINS interface - */ - - if(create_subnets == True) - { - /* Create new subnets. */ - if((d = make_subnet(myip, bcast_ip, mask_ip, add)) == NULL) - { - DEBUG(0,("add_subnet_entry: Unable to create subnet %s\n", - inet_ntoa(bcast_ip) )); - return NULL; - } - return d; - } - if(ip_equal(bcast_ip, wins_ip)) - return wins_client_subnet; - return find_subnet(bcast_ip); -} - -/**************************************************************************** - Add a workgroup into a subnet, and if it's our primary workgroup, - add the required names to it. -**************************************************************************/ - -void add_workgroup_to_subnet( struct subnet_record *d, char *group) -{ - struct work_record *w = NULL; - - DEBUG(5,("add_workgroup_to_subnet: Adding workgroup %s to subnet %s\n", - group, inet_ntoa(d->bcast_ip))); - - /* This next statement creates the workgroup struct if it doesn't - already exist. - */ - if((w = find_workgroupstruct(d, group, True)) == NULL) - { - DEBUG(0,("add_workgroup_to_subnet: Unable to add workgroup %s to subnet %s\n", - group, inet_ntoa(d->bcast_ip) )); - return; - } - - /* add WORKGROUP(00) entries into name database - or register with WINS server, if it's our workgroup. - */ - if (strequal(myworkgroup, group)) - { - int n; - - add_my_name_entry(d,group,0x0 ,nb_type|NB_ACTIVE|NB_GROUP); - - /* Register the WORKGROUP<0x1e> name. */ - add_my_name_entry(d,group,0x1e,nb_type|NB_ACTIVE|NB_GROUP); - - /* Add all our server names to the workgroup list. We remove any - browser or logon server flags from all but the primary name. - */ - for( n = 0; my_netbios_names[n]; n++) - { - char *name = my_netbios_names[n]; - int stype = w->ServerType; - - if(!strequal(myname, name)) - stype &= ~(SV_TYPE_MASTER_BROWSER|SV_TYPE_POTENTIAL_BROWSER| - SV_TYPE_DOMAIN_MASTER|SV_TYPE_DOMAIN_MEMBER); - - add_server_entry(d,w,name,stype|SV_TYPE_LOCAL_LIST_ONLY,0, - lp_serverstring(),True); - DEBUG(3,("add_workgroup_to_subnet: Added server name entry %s \ -to subnet %s\n", name, inet_ntoa(d->bcast_ip))); - } - } -} - -/**************************************************************************** - create subnet / workgroup / server entries - - - add or create the subnet lists - - add or create the workgroup entries in each subnet entry - - register appropriate NetBIOS names for the workgroup entries - -**************************************************************************/ -void add_my_subnets(char *group) -{ - static BOOL create_subnets = True; - struct subnet_record *d = NULL; - struct interface *i = NULL; - - if (*group == '*') return; - - /* Create subnets from all the local interfaces and thread them onto - the linked list. - */ - for (i = local_interfaces; i; i = i->next) - { - add_subnet_entry(i->ip, i->bcast,i->nmask,group, create_subnets, True); - } - - /* If we are using WINS, then we must add the workgroup to the WINS - subnet. This is used as a place to keep collated server lists. - */ - - /* Create the WINS subnet if we are using WINS - but don't thread it - onto the linked subnet list. - */ - if (lp_wins_support() || lp_wins_server()) - { - struct in_addr wins_nmask = ipzero; - wins_client_subnet = add_subnet_entry(ipzero, wins_ip, wins_nmask, group, create_subnets, False); - } - - /* Ensure we only create the subnets once. */ - create_subnets = False; - - /* Now we have created all the subnets - we can add the names - that make us a client member in the workgroup. - */ - for (d = FIRST_SUBNET; d; d = NEXT_SUBNET_INCLUDING_WINS(d)) - add_workgroup_to_subnet(d, group); -} - -/******************************************************************* - write out browse.dat - ******************************************************************/ -void write_browse_list(time_t t) -{ - struct subnet_record *d; - pstring fname,fnamenew; - FILE *f; - - static time_t lasttime = 0; - - if (!lasttime) lasttime = t; - if (!updatedlists || t - lasttime < 5) return; - - lasttime = t; - updatedlists = False; - updatecount++; - - dump_names(); - dump_workgroups(); - - pstrcpy(fname,lp_lockdir()); - trim_string(fname,NULL,"/"); - strcat(fname,"/"); - strcat(fname,SERVER_LIST); - pstrcpy(fnamenew,fname); - strcat(fnamenew,"."); - - f = fopen(fnamenew,"w"); - - if (!f) - { - DEBUG(4,("Can't open %s - %s\n",fnamenew,strerror(errno))); - return; - } - - for (d = FIRST_SUBNET; d ; d = NEXT_SUBNET_INCLUDING_WINS(d)) - { - struct work_record *work; - for (work = d->workgrouplist; work ; work = work->next) - { - struct server_record *s; - for (s = work->serverlist; s ; s = s->next) - { - fstring tmp; - - /* don't list domains I don't have a master for */ - if ((s->serv.type & SV_TYPE_DOMAIN_ENUM) && !s->serv.comment[0]) - { - continue; - } - - /* output server details, plus what workgroup/domain - they're in. without the domain information, the - combined list of all servers in all workgroups gets - sent to anyone asking about any workgroup! */ - - sprintf(tmp, "\"%s\"", s->serv.name); - fprintf(f, "%-25s ", tmp); - fprintf(f, "%08x ", s->serv.type); - sprintf(tmp, "\"%s\" ", s->serv.comment); - fprintf(f, "%-30s", tmp); - fprintf(f, "\"%s\"\n", work->work_group); - } - } - } - - fclose(f); - unlink(fname); - chmod(fnamenew,0644); - rename(fnamenew,fname); - DEBUG(3,("Wrote browse list %s\n",fname)); -} - |