/* Unix SMB/CIFS implementation. NBT netbios routines and daemon - version 2 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 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/>. Revision History: Handle lmhosts file reading. */ #include "includes.h" /**************************************************************************** Load a lmhosts file. ****************************************************************************/ void load_lmhosts_file(const char *fname) { char *name = NULL; int name_type; struct sockaddr_storage ss; TALLOC_CTX *ctx = talloc_init("load_lmhosts_file"); XFILE *fp = startlmhosts( fname ); if (!fp) { DEBUG(2,("load_lmhosts_file: Can't open lmhosts file %s. Error was %s\n", fname, strerror(errno))); TALLOC_FREE(ctx); return; } while (getlmhostsent(ctx, fp, &name, &name_type, &ss) ) { struct in_addr ipaddr; struct subnet_record *subrec = NULL; enum name_source source = LMHOSTS_NAME; if (ss.ss_family != AF_INET) { TALLOC_FREE(name); continue; } ipaddr = ((struct sockaddr_in *)&ss)->sin_addr; /* We find a relevent subnet to put this entry on, then add it. */ /* Go through all the broadcast subnets and see if the mask matches. */ for (subrec = FIRST_SUBNET; subrec ; subrec = NEXT_SUBNET_EXCLUDING_UNICAST(subrec)) { if(same_net_v4(ipaddr, subrec->bcast_ip, subrec->mask_ip)) break; } /* If none match add the name to the remote_broadcast_subnet. */ if(subrec == NULL) subrec = remote_broadcast_subnet; if(name_type == -1) { /* Add the (0) and (0x20) names directly into the namelist for this subnet. */ (void)add_name_to_subnet(subrec,name,0x00,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr); (void)add_name_to_subnet(subrec,name,0x20,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr); } else { /* Add the given name type to the subnet namelist. */ (void)add_name_to_subnet(subrec,name,name_type,(uint16)NB_ACTIVE,PERMANENT_TTL,source,1,&ipaddr); } } TALLOC_FREE(ctx); endlmhosts(fp); } /**************************************************************************** Find a name read from the lmhosts file. We secretly check the names on the remote_broadcast_subnet as if the name was added to a regular broadcast subnet it will be found by normal name query processing. ****************************************************************************/ bool find_name_in_lmhosts(struct nmb_name *nmbname, struct name_record **namerecp) { struct name_record *namerec; *namerecp = NULL; if((namerec = find_name_on_subnet(remote_broadcast_subnet, nmbname, FIND_ANY_NAME))==NULL) return False; if(!NAME_IS_ACTIVE(namerec) || (namerec->data.source != LMHOSTS_NAME)) return False; *namerecp = namerec; return True; }