source: vendor/3.5.5/source4/libcli/raw/rawacl.c

/* 
   Unix SMB/CIFS implementation.
   ACL get/set operations

   Copyright (C) Andrew Tridgell 2003-2004
   
   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 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 "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"
#include "librpc/gen_ndr/ndr_security.h"

/****************************************************************************
fetch file ACL (async send)
****************************************************************************/
struct smbcli_request *smb_raw_query_secdesc_send(struct smbcli_tree *tree, 
                                                  union smb_fileinfo *io)
{
        struct smb_nttrans nt;
        uint8_t params[8];

        nt.in.max_setup = 0;
        nt.in.max_param = 4;
        nt.in.max_data = 0xFFFF;
        nt.in.setup_count = 0;
        nt.in.function = NT_TRANSACT_QUERY_SECURITY_DESC;
        nt.in.setup = NULL;

        SSVAL(params, 0, io->query_secdesc.in.file.fnum);
        SSVAL(params, 2, 0); /* padding */
        SIVAL(params, 4, io->query_secdesc.in.secinfo_flags);

        nt.in.params.data = params;
        nt.in.params.length = 8;
        
        nt.in.data = data_blob(NULL, 0);

        return smb_raw_nttrans_send(tree, &nt);
}


/****************************************************************************
fetch file ACL (async recv)
****************************************************************************/
NTSTATUS smb_raw_query_secdesc_recv(struct smbcli_request *req, 
                                    TALLOC_CTX *mem_ctx, 
                                    union smb_fileinfo *io)
{
        NTSTATUS status;
        struct smb_nttrans nt;
        struct ndr_pull *ndr;
        enum ndr_err_code ndr_err;

        status = smb_raw_nttrans_recv(req, mem_ctx, &nt);
        if (!NT_STATUS_IS_OK(status)) {
                return status;
        }

        /* check that the basics are valid */
        if (nt.out.params.length != 4 ||
            IVAL(nt.out.params.data, 0) > nt.out.data.length) {
                return NT_STATUS_INVALID_PARAMETER;
        }

        nt.out.data.length = IVAL(nt.out.params.data, 0);

        ndr = ndr_pull_init_blob(&nt.out.data, mem_ctx, NULL);
        if (!ndr) {
                return NT_STATUS_INVALID_PARAMETER;
        }

        io->query_secdesc.out.sd = talloc(mem_ctx, struct security_descriptor);
        if (!io->query_secdesc.out.sd) {
                return NT_STATUS_NO_MEMORY;
        }
        ndr_err = ndr_pull_security_descriptor(ndr, NDR_SCALARS|NDR_BUFFERS,
                                               io->query_secdesc.out.sd);
        if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
                return ndr_map_error2ntstatus(ndr_err);
        }

        return NT_STATUS_OK;
}


/****************************************************************************
fetch file ACL (sync interface)
****************************************************************************/
NTSTATUS smb_raw_query_secdesc(struct smbcli_tree *tree, 
                               TALLOC_CTX *mem_ctx, 
                               union smb_fileinfo *io)
{
        struct smbcli_request *req = smb_raw_query_secdesc_send(tree, io);
        return smb_raw_query_secdesc_recv(req, mem_ctx, io);
}



/****************************************************************************
set file ACL (async send)
****************************************************************************/
struct smbcli_request *smb_raw_set_secdesc_send(struct smbcli_tree *tree, 
                                                union smb_setfileinfo *io)
{
        struct smb_nttrans nt;
        uint8_t params[8];
        struct ndr_push *ndr;
        struct smbcli_request *req;
        enum ndr_err_code ndr_err;

        nt.in.max_setup = 0;
        nt.in.max_param = 0;
        nt.in.max_data = 0;
        nt.in.setup_count = 0;
        nt.in.function = NT_TRANSACT_SET_SECURITY_DESC;
        nt.in.setup = NULL;

        SSVAL(params, 0, io->set_secdesc.in.file.fnum);
        SSVAL(params, 2, 0); /* padding */
        SIVAL(params, 4, io->set_secdesc.in.secinfo_flags);

        nt.in.params.data = params;
        nt.in.params.length = 8;

        ndr = ndr_push_init_ctx(NULL, NULL);
        if (!ndr) return NULL;

        ndr_err = ndr_push_security_descriptor(ndr, NDR_SCALARS|NDR_BUFFERS, io->set_secdesc.in.sd);
        if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
                talloc_free(ndr);
                return NULL;
        }

        nt.in.data = ndr_push_blob(ndr);

        req = smb_raw_nttrans_send(tree, &nt);

        talloc_free(ndr);
        return req;
}

/****************************************************************************
set file ACL (sync interface)
****************************************************************************/
NTSTATUS smb_raw_set_secdesc(struct smbcli_tree *tree, 
                             union smb_setfileinfo *io)
{
        struct smbcli_request *req = smb_raw_set_secdesc_send(tree, io);
        return smbcli_request_simple_recv(req);
}