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1ec825b28a
Guenther Pair-Programmed-With: Stefan Metzmacher <metze@samba.org> Signed-off-by: Guenther Deschner <gd@samba.org> Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
226 lines
5.9 KiB
C
226 lines
5.9 KiB
C
/*
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Unix SMB/Netbios implementation.
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RPC Server Headers
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Copyright (C) Andrew Tridgell 1992-1997
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Copyright (C) Luke Kenneth Casson Leighton 1996-1997
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Copyright (C) Paul Ashton 1997
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Copyright (C) Jeremy Allison 2000-2004
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Copyright (C) Simo Sorce 2010-2011
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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 _RPC_PIPES_H_
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#define _RPC_PIPES_H_
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#include "librpc/rpc/dcerpc.h"
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typedef struct _output_data {
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/*
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* Raw RPC output data. This does not include RPC headers or footers.
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*/
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DATA_BLOB rdata;
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/* The amount of data sent from the current rdata struct. */
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uint32_t data_sent_length;
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/*
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* The current fragment being returned. This inclues
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* headers, data and authentication footer.
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*/
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DATA_BLOB frag;
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/* The amount of data sent from the current PDU. */
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uint32_t current_pdu_sent;
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} output_data;
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typedef struct _input_data {
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/*
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* This is the current incoming pdu. The data here
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* is collected via multiple writes until a complete
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* pdu is seen, then the data is copied into the in_data
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* structure. The maximum size of this is 0x1630 (RPC_MAX_PDU_FRAG_LEN).
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* If length is zero, then we are at the start of a new
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* pdu.
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*/
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DATA_BLOB pdu;
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/*
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* The amount of data needed to complete the in_pdu.
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* If this is zero, then we are at the start of a new
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* pdu.
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*/
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uint32_t pdu_needed_len;
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/*
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* This is the collection of input data with all
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* the rpc headers and auth footers removed.
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* The maximum length of this (1Mb) is strictly enforced.
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*/
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DATA_BLOB data;
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} input_data;
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struct dcesrv_ep_entry_list;
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struct tsocket_address;
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struct handle_list;
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struct pipes_struct;
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struct api_struct {
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const char *name;
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uint8_t opnum;
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bool (*fn) (struct pipes_struct *);
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};
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struct pipe_rpc_fns {
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struct pipe_rpc_fns *next, *prev;
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/* RPC function table associated with the current rpc_bind (associated by context) */
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const struct api_struct *cmds;
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int n_cmds;
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uint32_t context_id;
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struct ndr_syntax_id syntax;
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/*
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* shall we allow "connect" auth level for this interface ?
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*/
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bool allow_connect;
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/*
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* minimal required auth level
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*/
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enum dcerpc_AuthLevel min_auth_level;
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};
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/*
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* DCE/RPC-specific samba-internal-specific handling of data on
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* NamedPipes.
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*/
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struct pipes_struct {
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struct pipes_struct *next, *prev;
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const struct tsocket_address *local_address;
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const struct tsocket_address *remote_address;
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enum dcerpc_transport_t transport;
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struct auth_session_info *session_info;
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struct messaging_context *msg_ctx;
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struct dcesrv_ep_entry_list *ep_entries;
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/* linked list of rpc dispatch tables associated
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with the open rpc contexts */
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struct pipe_rpc_fns *contexts;
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struct pipe_auth_data auth;
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/*
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* Set to true when an RPC bind has been done on this pipe.
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*/
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bool pipe_bound;
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/*
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* States we can be in.
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*/
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bool allow_alter;
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bool allow_bind;
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bool allow_auth3;
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/*
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* Set the DCERPC_FAULT to return.
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*/
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int fault_state;
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/*
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* Set to RPC_BIG_ENDIAN when dealing with big-endian PDU's
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*/
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bool endian;
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/*
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* Struct to deal with multiple pdu inputs.
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*/
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input_data in_data;
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/*
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* Struct to deal with multiple pdu outputs.
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*/
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output_data out_data;
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/* This context is used for PDU data and is freed between each pdu.
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Don't use for pipe state storage. */
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TALLOC_CTX *mem_ctx;
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/* handle database to use on this pipe. */
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struct handle_list *pipe_handles;
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/* call id retrieved from the pdu header */
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uint32_t call_id;
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/* operation number retrieved from the rpc header */
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uint16_t opnum;
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/* rpc header information to check fragments for consistency */
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struct dcerpc_sec_vt_header2 header2;
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/* private data for the interface implementation */
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void *private_data;
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};
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int make_base_pipes_struct(TALLOC_CTX *mem_ctx,
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struct messaging_context *msg_ctx,
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const char *pipe_name,
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enum dcerpc_transport_t transport,
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bool endian,
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const struct tsocket_address *remote_address,
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const struct tsocket_address *local_address,
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struct pipes_struct **_p);
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bool check_open_pipes(void);
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int close_internal_rpc_pipe_hnd(struct pipes_struct *p);
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size_t num_pipe_handles(struct pipes_struct *p);
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bool init_pipe_handles(struct pipes_struct *p, const struct ndr_syntax_id *syntax);
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bool create_policy_hnd(struct pipes_struct *p, struct policy_handle *hnd, void *data_ptr);
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bool find_policy_by_hnd(struct pipes_struct *p, const struct policy_handle *hnd,
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void **data_p);
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bool close_policy_hnd(struct pipes_struct *p, struct policy_handle *hnd);
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void close_policy_by_pipe(struct pipes_struct *p);
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bool pipe_access_check(struct pipes_struct *p);
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void *_policy_handle_create(struct pipes_struct *p, struct policy_handle *hnd,
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uint32_t access_granted, size_t data_size,
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const char *type, NTSTATUS *pstatus);
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#define policy_handle_create(_p, _hnd, _access, _type, _pstatus) \
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(_type *)_policy_handle_create((_p), (_hnd), (_access), sizeof(_type), #_type, \
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(_pstatus))
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void *_policy_handle_find(struct pipes_struct *p,
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const struct policy_handle *hnd,
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uint32_t access_required, uint32_t *paccess_granted,
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const char *name, const char *location,
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NTSTATUS *pstatus);
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#define policy_handle_find(_p, _hnd, _access_required, _access_granted, _type, _pstatus) \
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(_type *)_policy_handle_find((_p), (_hnd), (_access_required), \
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(_access_granted), #_type, __location__, (_pstatus))
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#endif /* _RPC_PIPES_H_ */
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