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/*
Unix SMB/CIFS implementation.
Copyright (C) Stefan Metzmacher 2004
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"
#include "libcli/nbt/libnbt.h"
#include "libnet/libnet.h"
/**
* Finds a domain pdc (generic part)
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
static NTSTATUS libnet_find_pdc_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx,
union libnet_find_pdc *r)
{
const char *address;
NTSTATUS status;
struct nbt_name name;
if (is_ipaddress(r->generic.in.domain_name)) {
r->generic.out.pdc_name = r->generic.in.domain_name;
return NT_STATUS_OK;
}
make_nbt_name(&name, r->generic.in.domain_name, NBT_NAME_PDC);
status = resolve_name(&name, mem_ctx, &address);
if (!NT_STATUS_IS_OK(status)) {
name.type = NBT_NAME_SERVER;
status = resolve_name(&name, mem_ctx, &address);
}
NT_STATUS_NOT_OK_RETURN(status);
r->generic.out.pdc_name = talloc_strdup(mem_ctx, address);
return NT_STATUS_OK;
}
/**
* Finds a domain pdc function
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
NTSTATUS libnet_find_pdc(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_find_pdc *r)
{
switch (r->generic.level) {
case LIBNET_FIND_PDC_GENERIC:
return libnet_find_pdc_generic(ctx, mem_ctx, r);
}
return NT_STATUS_INVALID_LEVEL;
}
/**
* Connects rpc pipe on remote server
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
static NTSTATUS libnet_rpc_connect_standard(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_rpc_connect *r)
{
NTSTATUS status;
const char *binding = NULL;
binding = talloc_asprintf(mem_ctx, "ncacn_np:%s",
r->standard.in.server_name);
status = dcerpc_pipe_connect(mem_ctx,
&r->standard.out.dcerpc_pipe,
binding,
r->standard.in.dcerpc_iface_uuid,
r->standard.in.dcerpc_iface_version,
ctx->cred, ctx->event_ctx);
if (!NT_STATUS_IS_OK(status)) {
r->standard.out.error_string = talloc_asprintf(mem_ctx,
"dcerpc_pipe_connect to pipe %s failed with %s\n",
r->standard.in.dcerpc_iface_name, binding);
return status;
}
r->standard.out.error_string = NULL;
return status;
}
/**
* Connects rpc pipe on domain pdc
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
static NTSTATUS libnet_rpc_connect_pdc(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_rpc_connect *r)
{
NTSTATUS status;
union libnet_rpc_connect r2;
union libnet_find_pdc f;
f.generic.level = LIBNET_FIND_PDC_GENERIC;
f.generic.in.domain_name = r->pdc.in.domain_name;
status = libnet_find_pdc(ctx, mem_ctx, &f);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
r2.standard.level = LIBNET_RPC_CONNECT_STANDARD;
r2.standard.in.server_name = f.generic.out.pdc_name;
r2.standard.in.dcerpc_iface_name = r->standard.in.dcerpc_iface_name;
r2.standard.in.dcerpc_iface_uuid = r->standard.in.dcerpc_iface_uuid;
r2.standard.in.dcerpc_iface_version = r->standard.in.dcerpc_iface_version;
status = libnet_rpc_connect(ctx, mem_ctx, &r2);
r->pdc.out.dcerpc_pipe = r2.standard.out.dcerpc_pipe;
r->pdc.out.error_string = r2.standard.out.error_string;
return status;
}
/**
* Connects to rpc pipe on remote server or pdc
*
* @param ctx initialised libnet context
* @param mem_ctx memory context of this call
* @param r data structure containing necessary parameters and return values
* @return nt status of the call
**/
NTSTATUS libnet_rpc_connect(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, union libnet_rpc_connect *r)
{
switch (r->standard.level) {
case LIBNET_RPC_CONNECT_STANDARD:
return libnet_rpc_connect_standard(ctx, mem_ctx, r);
case LIBNET_RPC_CONNECT_PDC:
return libnet_rpc_connect_pdc(ctx, mem_ctx, r);
}
return NT_STATUS_INVALID_LEVEL;
}
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