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/*
* Unix SMB/Netbios implementation.
* Version 1.9.
* RPC Pipe client / server routines
* Copyright (C) Andrew Tridgell 1992-2000,
* Copyright (C) Luke Kenneth Casson Leighton 1996-2000,
* Copyright (C) Paul Ashton 1997-2000.
*
* 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 "rpc_parse.h"
#include "nterr.h"
extern int DEBUGLEVEL;
/*******************************************************************
turns a DCE/RPC request into a DCE/RPC reply
********************************************************************/
static BOOL api_noauth_create_pdu(rpcsrv_struct * l, uint32 data_start,
prs_struct * resp)
{
BOOL ret;
uint32 data_len;
uint32 frag_len;
uint32 data_end = l->rdata.offset;
prs_struct rhdr;
prs_struct rdata_i;
RPC_HDR_RESP hdr_resp;
uint8 flags = 0x0;
uint32 call_id = l->hdr.call_id;
DEBUG(5,
("create_noauth_reply: data_start: %d data_end: %d max_tsize: %d\n",
data_start, data_end, l->hdr_ba.bba.max_tsize));
if (l->hdr.auth_len != 0)
{
return False;
}
prs_init(&rhdr, 0, 4, False);
/* set up rpc header (fragmentation issues) */
if (data_start == 0)
{
flags = RPC_FLG_FIRST;
}
else
{
flags = 0;
}
hdr_resp.alloc_hint = data_end - data_start; /* calculate remaining data to be sent */
hdr_resp.cancel_count = 0x0;
hdr_resp.context_id = 0x0;
hdr_resp.reserved = 0x0;
DEBUG(10, ("alloc_hint: %d\n", hdr_resp.alloc_hint));
if (hdr_resp.alloc_hint + 0x18 <= l->hdr_ba.bba.max_tsize)
{
flags |= RPC_FLG_LAST;
frag_len = hdr_resp.alloc_hint + 0x18;
}
else
{
frag_len = l->hdr_ba.bba.max_tsize;
}
data_len = frag_len - 0x18;
rhdr.start = 0;
rhdr.end = 0x18;
if (!make_rpc_hdr(&l->hdr, RPC_RESPONSE, flags, call_id, frag_len, 0))
{
return False;
}
DEBUG(10, ("hdr flags: %x\n", flags));
/* store the header in the data stream */
smb_io_rpc_hdr("rhdr", &(l->hdr), &(rhdr), 0);
smb_io_rpc_hdr_resp("resp", &(hdr_resp), &(rhdr), 0);
/* don't use rdata: use rdata_i instead, which moves... */
/* make a pointer to the rdata data, NOT A COPY */
prs_create(&rdata_i, prs_data(&l->rdata, data_start),
data_len, l->rdata.align, rdata_i.io);
rdata_i.offset = data_len;
l->rdata_offset += data_len;
prs_debug_out(&rdata_i, "rdata_i", 200);
prs_debug_out(&l->rdata, "rdata", 200);
prs_link(NULL, &rhdr, &rdata_i);
prs_link(&rhdr, &rdata_i, NULL);
prs_init(resp, 0, 4, False);
ret = prs_copy(resp, &rhdr);
prs_free_data(&rhdr);
return ret;
}
static BOOL api_noauth_auth_gen(rpcsrv_struct * l, prs_struct * resp,
enum RPC_PKT_TYPE pkt_type)
{
prs_struct rhdr;
BOOL ret;
DEBUG(10, ("api_noauth_auth_gen\n"));
prs_init(&rhdr, 0, 4, False);
make_rpc_hdr(&l->hdr, pkt_type, RPC_FLG_FIRST | RPC_FLG_LAST,
l->hdr.call_id, l->rdata.offset + 0x10, 0);
smb_io_rpc_hdr("", &l->hdr, &rhdr, 0);
prs_realloc_data(&rhdr, l->rdata.offset);
/***/
/*** link rpc header and bind acknowledgment ***/
/***/
prs_link(NULL, &rhdr, &l->rdata);
prs_link(&rhdr, &l->rdata, NULL);
prs_init(resp, 0, 4, False);
ret = prs_copy(resp, &rhdr);
prs_free_data(&l->rdata);
prs_free_data(&rhdr);
return ret;
}
static BOOL api_noauth_auth_chk(rpcsrv_struct * l, enum RPC_PKT_TYPE pkt_type)
{
l->auth_validated = True;
return True;
}
static BOOL api_noauth_decode_pdu(rpcsrv_struct * l)
{
return True;
}
srv_auth_fns noauth_fns = {
NULL,
api_noauth_auth_chk,
api_noauth_auth_gen,
api_noauth_decode_pdu,
api_noauth_create_pdu,
};
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