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86 lines
3.3 KiB
C
86 lines
3.3 KiB
C
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/*
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Unix SMB/CIFS implementation.
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Copyright (C) Stefan Metzmacher 2010-2011
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Copyright (C) Andrew Tridgell 2010-2011
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Copyright (C) Simo Sorce 2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __LIBRPC_RPC_DCERPC_UTIL_H__
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#define __LIBRPC_RPC_DCERPC_UTIL_H__
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#include "replace.h"
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#include <talloc.h>
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#include "lib/util/data_blob.h"
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#include "librpc/rpc/rpc_common.h"
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#include "librpc/gen_ndr/dcerpc.h"
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void dcerpc_set_frag_length(DATA_BLOB *blob, uint16_t v);
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uint16_t dcerpc_get_frag_length(const DATA_BLOB *blob);
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void dcerpc_set_auth_length(DATA_BLOB *blob, uint16_t v);
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uint16_t dcerpc_get_auth_length(const DATA_BLOB *blob);
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uint8_t dcerpc_get_endian_flag(DATA_BLOB *blob);
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uint8_t dcerpc_get_auth_type(const DATA_BLOB *blob);
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uint8_t dcerpc_get_auth_level(const DATA_BLOB *blob);
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uint32_t dcerpc_get_auth_context_id(const DATA_BLOB *blob);
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const char *dcerpc_default_transport_endpoint(TALLOC_CTX *mem_ctx,
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enum dcerpc_transport_t transport,
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const struct ndr_interface_table *table);
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NTSTATUS dcerpc_pull_ncacn_packet(TALLOC_CTX *mem_ctx,
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const DATA_BLOB *blob,
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struct ncacn_packet *r);
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/**
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* @brief Pull a dcerpc_auth structure, taking account of any auth
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* padding in the blob. For request/response packets we pass
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* the whole data blob, so auth_data_only must be set to false
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* as the blob contains data+pad+auth and no just pad+auth.
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*
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* @param pkt - The ncacn_packet strcuture
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* @param mem_ctx - The mem_ctx used to allocate dcerpc_auth elements
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* @param pkt_trailer - The packet trailer data, usually the trailing
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* auth_info blob, but in the request/response case
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* this is the stub_and_verifier blob.
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* @param auth - A preallocated dcerpc_auth *empty* structure
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* @param auth_length - The length of the auth trail, sum of auth header
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* lenght and pkt->auth_length
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* @param auth_data_only - Whether the pkt_trailer includes only the auth_blob
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* (+ padding) or also other data.
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*
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* @return - A NTSTATUS error code.
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*/
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NTSTATUS dcerpc_pull_auth_trailer(const struct ncacn_packet *pkt,
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TALLOC_CTX *mem_ctx,
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const DATA_BLOB *pkt_trailer,
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struct dcerpc_auth *auth,
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uint32_t *auth_length,
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bool auth_data_only);
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NTSTATUS dcerpc_verify_ncacn_packet_header(const struct ncacn_packet *pkt,
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enum dcerpc_pkt_type ptype,
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size_t max_auth_info,
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uint8_t required_flags,
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uint8_t optional_flags);
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struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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struct tstream_context *stream);
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NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
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TALLOC_CTX *mem_ctx,
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struct ncacn_packet **pkt,
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DATA_BLOB *buffer);
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#endif
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