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/*
Unix SMB / CIFS implementation .
async dsgetdcname
Copyright ( C ) Volker Lendecke 2009
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 "winbindd.h"
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# include "librpc/gen_ndr/ndr_winbind_c.h"
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struct wb_dsgetdcname_state {
struct netr_DsRGetDCNameInfo * dcinfo ;
} ;
static void wb_dsgetdcname_done ( struct tevent_req * subreq ) ;
struct tevent_req * wb_dsgetdcname_send ( TALLOC_CTX * mem_ctx ,
struct tevent_context * ev ,
const char * domain_name ,
const struct GUID * domain_guid ,
const char * site_name ,
uint32_t flags )
{
struct tevent_req * req , * subreq ;
struct wb_dsgetdcname_state * state ;
struct winbindd_child * child ;
struct GUID guid ;
struct GUID * guid_ptr = NULL ;
req = tevent_req_create ( mem_ctx , & state , struct wb_dsgetdcname_state ) ;
if ( req = = NULL ) {
return NULL ;
}
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if ( strequal ( domain_name , " BUILTIN " ) ) {
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/*
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* This makes no sense
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*/
tevent_req_nterror ( req , NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND ) ;
return tevent_req_post ( req , ev ) ;
}
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if ( strequal ( domain_name , get_global_sam_name ( ) ) ) {
int role = lp_server_role ( ) ;
if ( role ! = ROLE_ACTIVE_DIRECTORY_DC ) {
/*
* Two options here : Give back our own address , or say there ' s
* nobody around . Right now opting for the latter , one measure
* to prevent the loopback connects . This might change if
* needed .
*/
tevent_req_nterror ( req , NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND ) ;
return tevent_req_post ( req , ev ) ;
}
}
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if ( IS_DC ) {
/*
* We have to figure out the DC ourselves
*/
child = locator_child ( ) ;
} else {
struct winbindd_domain * domain = find_our_domain ( ) ;
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child = choose_domain_child ( domain ) ;
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}
if ( domain_guid ! = NULL ) {
/* work around a const issue in rpccli_ autogenerated code */
guid = * domain_guid ;
guid_ptr = & guid ;
}
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subreq = dcerpc_wbint_DsGetDcName_send (
state , ev , child - > binding_handle , domain_name , guid_ptr , site_name ,
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flags , & state - > dcinfo ) ;
if ( tevent_req_nomem ( subreq , req ) ) {
return tevent_req_post ( req , ev ) ;
}
tevent_req_set_callback ( subreq , wb_dsgetdcname_done , req ) ;
return req ;
}
static void wb_dsgetdcname_done ( struct tevent_req * subreq )
{
struct tevent_req * req = tevent_req_callback_data (
subreq , struct tevent_req ) ;
struct wb_dsgetdcname_state * state = tevent_req_data (
req , struct wb_dsgetdcname_state ) ;
NTSTATUS status , result ;
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status = dcerpc_wbint_DsGetDcName_recv ( subreq , state , & result ) ;
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TALLOC_FREE ( subreq ) ;
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if ( any_nt_status_not_ok ( status , result , & status ) ) {
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tevent_req_nterror ( req , status ) ;
return ;
}
tevent_req_done ( req ) ;
}
NTSTATUS wb_dsgetdcname_recv ( struct tevent_req * req , TALLOC_CTX * mem_ctx ,
struct netr_DsRGetDCNameInfo * * pdcinfo )
{
struct wb_dsgetdcname_state * state = tevent_req_data (
req , struct wb_dsgetdcname_state ) ;
NTSTATUS status ;
if ( tevent_req_is_nterror ( req , & status ) ) {
return status ;
}
* pdcinfo = talloc_move ( mem_ctx , & state - > dcinfo ) ;
return NT_STATUS_OK ;
}