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/*
* Unix SMB/Netbios implementation.
* Version 1.9.
* RPC Pipe client / server routines
* Copyright (C) Andrew Tridgell 1992-1999,
* Copyright (C) Luke Kenneth Casson Leighton 1996-1999,
*
* 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.
*/
#ifdef SYSLOG
#undef SYSLOG
#endif
#include "includes.h"
#include "rpc_parse.h"
extern int DEBUGLEVEL;
extern struct pipe_id_info pipe_names[];
extern pstring global_myname;
/****************************************************************************
send a request on an rpc pipe.
****************************************************************************/
static BOOL create_noauth_pdu(struct cli_connection *con,
uint8 op_num,
prs_struct *data, int data_start, int *data_end,
prs_struct *dataa,
uint8 *flags)
{
/* fudge this, at the moment: create the header; memcpy the data. oops. */
prs_struct data_t;
prs_struct hdr;
int data_len;
int frag_len;
char *d = prs_data(data, data_start);
struct ntdom_info *nt = cli_conn_get_ntinfo(con);
*flags = 0;
data_len = data->offset - data_start;
if (data_start == 0)
{
(*flags) |= RPC_FLG_FIRST;
}
if (data_len > nt->max_recv_frag)
{
data_len = nt->max_recv_frag + 0x18;
}
else
{
(*flags) |= RPC_FLG_LAST;
}
(*data_end) += data_len;
/* happen to know that NTLMSSP authentication verifier is 16 bytes */
frag_len = data_len + 0x18;
prs_init(&data_t , 0 , 4, False);
prs_init(&hdr , frag_len, 4, False);
prs_append_data(&data_t, d, data_len);
data_t.end = data_t.data_size;
data_t.offset = data_t.data_size;
create_rpc_request(&hdr, nt->key.vuid, op_num, (*flags), frag_len, 0);
prs_link(NULL, &hdr , &data_t);
prs_link(&hdr, &data_t, NULL );
DEBUG(100,("frag_len: 0x%x data_len: 0x%x data_calc_len: 0x%x\n",
frag_len, data_len, prs_buf_len(&data_t)));
if (frag_len != prs_buf_len(&hdr))
{
DEBUG(0,("expected fragment length does not match\n"));
prs_free_data(&hdr );
prs_free_data(&data_t );
return False;
}
DEBUG(100,("create_noauth_pdu: %d\n", __LINE__));
/* this is all a hack */
prs_init(dataa, prs_buf_len(&hdr), 4, False);
prs_debug_out(dataa, "create_noauth_pdu", 200);
prs_buf_copy(dataa->data, &hdr, 0, frag_len);
DEBUG(100,("create_noauth_pdu: %d\n", __LINE__));
prs_free_data(&hdr );
prs_free_data(&data_t );
return True;
}
/*******************************************************************
creates a DCE/RPC bind request
- initialises the parse structure.
- dynamically allocates the header data structure
- caller is expected to free the header data structure once used.
********************************************************************/
static BOOL create_rpc_noauth_bind_req(struct cli_connection *con,
prs_struct *data,
uint32 rpc_call_id,
RPC_IFACE *abstract, RPC_IFACE *transfer)
{
prs_struct rhdr;
prs_struct rhdr_rb;
RPC_HDR_RB hdr_rb;
RPC_HDR hdr;
struct ntdom_info *nt = cli_conn_get_ntinfo(con);
DEBUG(10,("create_rpc_noauth_bind_req\n"));
prs_init(&rhdr , 0x0, 4, False);
prs_init(&rhdr_rb , 0x0, 4, False);
/* create the bind request RPC_HDR_RB */
make_rpc_hdr_rb(&hdr_rb, 0x1630, 0x1630, nt->key.pid,
0x1, nt->key.vuid, 0x1, abstract, transfer);
/* stream the bind request data */
smb_io_rpc_hdr_rb("", &hdr_rb, &rhdr_rb, 0);
/* create the request RPC_HDR */
make_rpc_hdr(&hdr, RPC_BIND, 0x0, rpc_call_id,
rhdr_rb.offset + 0x10, 0);
smb_io_rpc_hdr("hdr" , &hdr , &rhdr, 0);
if (rhdr.data == NULL || rhdr_rb.data == NULL) return False;
/***/
/*** link rpc header and bind acknowledgment ***/
/***/
prs_link(NULL , &rhdr , &rhdr_rb);
prs_link(&rhdr, &rhdr_rb, NULL );
prs_init(data, prs_buf_len(&rhdr), 4, False);
prs_buf_copy(data->data, &rhdr, 0, prs_buf_len(&rhdr));
prs_free_data(&rhdr );
prs_free_data(&rhdr_rb );
return True;
}
cli_auth_fns cli_noauth_fns =
{
create_rpc_noauth_bind_req,
NULL,
NULL,
create_noauth_pdu,
NULL
};
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