diff options
Diffstat (limited to 'source3/nmbd/nmbd_logonnames.c')
| -rw-r--r-- | source3/nmbd/nmbd_logonnames.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/source3/nmbd/nmbd_logonnames.c b/source3/nmbd/nmbd_logonnames.c new file mode 100644 index 0000000..cc4776a --- /dev/null +++ b/source3/nmbd/nmbd_logonnames.c @@ -0,0 +1,172 @@ +/* + 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 "../librpc/gen_ndr/svcctl.h" +#include "nmbd/nmbd.h" + +extern uint16_t samba_nb_type; /* Samba's NetBIOS type. */ + +/**************************************************************************** + Fail to become a Logon server on a subnet. +****************************************************************************/ + +static void become_logon_server_fail(struct subnet_record *subrec, + struct response_record *rrec, + struct nmb_name *fail_name) +{ + unstring failname; + struct work_record *work; + struct server_record *servrec; + + pull_ascii_nstring(failname, sizeof(failname), fail_name->name); + work = find_workgroup_on_subnet(subrec, failname); + if(!work) { + DEBUG(0,("become_logon_server_fail: Error - cannot find \ +workgroup %s on subnet %s\n", failname, subrec->subnet_name)); + return; + } + + if((servrec = find_server_in_workgroup( work, lp_netbios_name())) == NULL) { + DEBUG(0,("become_logon_server_fail: Error - cannot find server %s \ +in workgroup %s on subnet %s\n", + lp_netbios_name(), failname, subrec->subnet_name)); + work->log_state = LOGON_NONE; + return; + } + + /* Set the state back to LOGON_NONE. */ + work->log_state = LOGON_NONE; + + servrec->serv.type &= ~SV_TYPE_DOMAIN_CTRL; + + DEBUG(0,("become_logon_server_fail: Failed to become a domain master for \ +workgroup %s on subnet %s. Couldn't register name %s.\n", + work->work_group, subrec->subnet_name, nmb_namestr(fail_name))); + +} + +/**************************************************************************** + Become a Logon server on a subnet. + ****************************************************************************/ + +static void become_logon_server_success(struct subnet_record *subrec, + struct userdata_struct *userdata, + struct nmb_name *registered_name, + uint16_t nb_flags, + int ttl, struct in_addr registered_ip) +{ + unstring reg_name; + struct work_record *work; + struct server_record *servrec; + + pull_ascii_nstring(reg_name, sizeof(reg_name), registered_name->name); + work = find_workgroup_on_subnet( subrec, reg_name); + if(!work) { + DEBUG(0,("become_logon_server_success: Error - cannot find \ +workgroup %s on subnet %s\n", reg_name, subrec->subnet_name)); + return; + } + + if((servrec = find_server_in_workgroup( work, lp_netbios_name())) == NULL) { + DEBUG(0,("become_logon_server_success: Error - cannot find server %s \ +in workgroup %s on subnet %s\n", + lp_netbios_name(), reg_name, subrec->subnet_name)); + work->log_state = LOGON_NONE; + return; + } + + /* Set the state in the workgroup structure. */ + work->log_state = LOGON_SRV; /* Become domain master. */ + + /* Update our server status. */ + servrec->serv.type |= (SV_TYPE_NT|SV_TYPE_DOMAIN_MEMBER); + /* To allow Win95 policies to load we need to set type domain + controller. + */ + servrec->serv.type |= SV_TYPE_DOMAIN_CTRL; + + /* Tell the namelist writer to write out a change. */ + subrec->work_changed = True; + + /* + * Add the WORKGROUP<1C> name to the UNICAST subnet with the IP address + * for this subnet so we will respond to queries on this name. + */ + + { + struct nmb_name nmbname; + make_nmb_name(&nmbname,lp_workgroup(),0x1c); + insert_permanent_name_into_unicast(subrec, &nmbname, 0x1c); + } + + DEBUG(0,("become_logon_server_success: Samba is now a logon server \ +for workgroup %s on subnet %s\n", work->work_group, subrec->subnet_name)); +} + +/******************************************************************* + Become a logon server by attempting to register the WORKGROUP<1c> + group name. +******************************************************************/ + +static void become_logon_server(struct subnet_record *subrec, + struct work_record *work) +{ + DEBUG(2,("become_logon_server: Attempting to become logon server for workgroup %s \ +on subnet %s\n", work->work_group,subrec->subnet_name)); + + DEBUG(3,("become_logon_server: go to first stage: register %s<1c> name\n", + work->work_group)); + work->log_state = LOGON_WAIT; + + register_name(subrec, work->work_group,0x1c,samba_nb_type|NB_GROUP, + become_logon_server_success, + become_logon_server_fail, NULL); +} + +/***************************************************************************** + Add the internet group <1c> logon names by unicast and broadcast. + ****************************************************************************/ + +void add_logon_names(void) +{ + struct subnet_record *subrec; + + for (subrec = FIRST_SUBNET; subrec; subrec = NEXT_SUBNET_INCLUDING_UNICAST(subrec)) { + struct work_record *work = find_workgroup_on_subnet(subrec, lp_workgroup()); + + if (work && (work->log_state == LOGON_NONE)) { + struct nmb_name nmbname; + make_nmb_name(&nmbname,lp_workgroup(),0x1c); + + if (find_name_on_subnet(subrec, &nmbname, FIND_SELF_NAME) == NULL) { + if( DEBUGLVL( 0 ) ) { + dbgtext( "add_domain_logon_names:\n" ); + dbgtext( "Attempting to become logon server " ); + dbgtext( "for workgroup %s ", lp_workgroup() ); + dbgtext( "on subnet %s\n", subrec->subnet_name ); + } + become_logon_server(subrec, work); + } + } + } +} |