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s4:rpc_server: Move core structures and prototypes to core library
Signed-off-by: Samuel Cabrero <scabrero@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
This commit is contained in:
Samuel Cabrero
Andreas Schneider
parent
3f33fdf2e3
commit
076ec9173e
@ -24,4 +24,582 @@
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#ifndef _LIBRPC_RPC_DCESRV_CORE_H_
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#define _LIBRPC_RPC_DCESRV_CORE_H_
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#include "librpc/rpc/rpc_common.h"
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#include "librpc/ndr/libndr.h"
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/* modules can use the following to determine if the interface has changed
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* please increment the version number after each interface change
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* with a comment and maybe update struct dcesrv_critical_sizes.
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*/
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/* version 1 - initial version - metze */
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#define DCERPC_MODULE_VERSION 1
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struct dcesrv_connection;
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struct dcesrv_call_state;
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struct dcesrv_auth;
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struct dcesrv_connection_context;
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struct dcesrv_iface_state;
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struct cli_credentials;
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struct dcesrv_interface {
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const char *name;
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struct ndr_syntax_id syntax_id;
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/* this function is called when the client binds to this interface */
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NTSTATUS (*bind)(struct dcesrv_connection_context *, const struct dcesrv_interface *);
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/* this function is called when the client disconnects the endpoint */
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void (*unbind)(struct dcesrv_connection_context *, const struct dcesrv_interface *);
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/* the ndr_pull function for the chosen interface.
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*/
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NTSTATUS (*ndr_pull)(struct dcesrv_call_state *, TALLOC_CTX *, struct ndr_pull *, void **);
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/* the dispatch function for the chosen interface.
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*/
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NTSTATUS (*dispatch)(struct dcesrv_call_state *, TALLOC_CTX *, void *);
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/* the reply function for the chosen interface.
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*/
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NTSTATUS (*reply)(struct dcesrv_call_state *, TALLOC_CTX *, void *);
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/* the ndr_push function for the chosen interface.
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*/
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NTSTATUS (*ndr_push)(struct dcesrv_call_state *, TALLOC_CTX *, struct ndr_push *, const void *);
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/* for any private use by the interface code */
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const void *private_data;
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uint64_t flags;
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};
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#define DCESRV_INTERFACE_FLAGS_HANDLES_NOT_USED 0x00000001
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enum dcesrv_call_list {
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DCESRV_LIST_NONE,
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DCESRV_LIST_CALL_LIST,
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DCESRV_LIST_FRAGMENTED_CALL_LIST,
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DCESRV_LIST_PENDING_CALL_LIST
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};
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struct data_blob_list_item {
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struct data_blob_list_item *prev,*next;
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DATA_BLOB blob;
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};
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/* the state of an ongoing dcerpc call */
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struct dcesrv_call_state {
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struct dcesrv_call_state *next, *prev;
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struct dcesrv_auth *auth_state;
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struct dcesrv_connection *conn;
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struct dcesrv_connection_context *context;
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struct ncacn_packet pkt;
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/*
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* Used during async bind/alter_context.
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*/
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struct ncacn_packet ack_pkt;
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/*
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which list this request is in, if any
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*/
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enum dcesrv_call_list list;
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/* the backend can mark the call
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* with DCESRV_CALL_STATE_FLAG_ASYNC
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* that will cause the frontend to not touch r->out
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* and skip the reply
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*
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* this is only allowed to the backend when DCESRV_CALL_STATE_FLAG_MAY_ASYNC
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* is alerady set by the frontend
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*
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* the backend then needs to call dcesrv_reply() when it's
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* ready to send the reply
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*/
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#define DCESRV_CALL_STATE_FLAG_ASYNC (1<<0)
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#define DCESRV_CALL_STATE_FLAG_MAY_ASYNC (1<<1)
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#define DCESRV_CALL_STATE_FLAG_MULTIPLEXED (1<<3)
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#define DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL (1<<4)
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uint32_t state_flags;
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/* the time the request arrived in the server */
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struct timeval time;
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/* the backend can use this event context for async replies */
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struct tevent_context *event_ctx;
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/* this is the pointer to the allocated function struct */
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void *r;
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/*
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* that's the ndr pull context used in dcesrv_request()
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* needed by dcesrv_reply() to carry over information
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* for full pointer support.
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*/
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struct ndr_pull *ndr_pull;
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DATA_BLOB input;
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struct data_blob_list_item *replies;
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/* this is used by the boilerplate code to generate DCERPC faults */
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uint32_t fault_code;
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/* the reason why we terminate the connection after sending a response */
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const char *terminate_reason;
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/* temporary auth_info fields */
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struct dcerpc_auth in_auth_info;
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struct dcerpc_auth _out_auth_info;
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struct dcerpc_auth *out_auth_info;
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};
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/*
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* DCERPC Handles
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* --------------
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* The various handles that are used in the RPC servers should be
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* created and fetch using the dcesrv_handle_* functions.
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*
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* Use
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* dcesrv_handle_create(struct dcesrv_call_state \*, uint8 handle_type)
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* to obtain a new handle of the specified type. Handle types are
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* unique within each pipe.
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*
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* The handle can later be fetched again using:
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*
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* struct dcesrv_handle *dcesrv_handle_lookup(
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* struct dcesrv_call_state *dce_call,
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* struct policy_handle *p,
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* uint8 handle_type)
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*
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* and destroyed by:
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*
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* TALLOC_FREE(struct dcesrv_handle *).
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*
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* User data should be stored in the 'data' member of the dcesrv_handle
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* struct.
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*/
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#define DCESRV_HANDLE_ANY 255
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/* a dcerpc handle in internal format */
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struct dcesrv_handle {
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struct dcesrv_handle *next, *prev;
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struct dcesrv_assoc_group *assoc_group;
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struct policy_handle wire_handle;
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struct dom_sid *sid;
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enum dcerpc_AuthLevel min_auth_level;
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const struct dcesrv_interface *iface;
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void *data;
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};
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/* hold the authentication state information */
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struct dcesrv_auth {
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struct dcesrv_auth *prev, *next;
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enum dcerpc_AuthType auth_type;
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enum dcerpc_AuthLevel auth_level;
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uint32_t auth_context_id;
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struct gensec_security *gensec_security;
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struct auth_session_info *session_info;
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NTSTATUS (*session_key_fn)(struct dcesrv_auth *, DATA_BLOB *session_key);
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bool auth_started;
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bool auth_finished;
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bool auth_audited;
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bool auth_invalid;
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};
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struct dcesrv_connection_context {
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struct dcesrv_connection_context *next, *prev;
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uint16_t context_id;
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/* the connection this is on */
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struct dcesrv_connection *conn;
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/* the ndr function table for the chosen interface */
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const struct dcesrv_interface *iface;
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/*
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* the minimum required auth level for this interface
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*/
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enum dcerpc_AuthLevel min_auth_level;
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bool allow_connect;
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/* the negotiated transfer syntax */
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struct ndr_syntax_id transfer_syntax;
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};
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/* the state associated with a dcerpc server connection */
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struct dcesrv_connection {
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/* for the broken_connections DLIST */
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struct dcesrv_connection *prev, *next;
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/* the top level context for this server */
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struct dcesrv_context *dce_ctx;
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/* the endpoint that was opened */
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const struct dcesrv_endpoint *endpoint;
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/* a list of established context_ids */
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struct dcesrv_connection_context *contexts;
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/* the state of the current incoming call fragments */
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struct dcesrv_call_state *incoming_fragmented_call_list;
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/* the state of the async pending calls */
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struct dcesrv_call_state *pending_call_list;
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/* the state of the current outgoing calls */
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struct dcesrv_call_state *call_list;
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/* the maximum size the client wants to receive */
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uint16_t max_recv_frag;
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uint16_t max_xmit_frag;
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DATA_BLOB partial_input;
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/* the event_context that will be used for this connection */
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struct tevent_context *event_ctx;
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/* is this connection pending termination? If so, why? */
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const char *terminate;
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const char *packet_log_dir;
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/* this is the default state_flags for dcesrv_call_state structs */
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uint32_t state_flags;
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struct {
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void *private_data;
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void (*report_output_data)(struct dcesrv_connection *);
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void (*terminate_connection)(struct dcesrv_connection *,
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const char *);
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} transport;
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struct tstream_context *stream;
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struct tevent_queue *send_queue;
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const struct tsocket_address *local_address;
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const struct tsocket_address *remote_address;
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/* the current authentication state */
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struct dcesrv_auth *default_auth_state;
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size_t max_auth_states;
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struct dcesrv_auth *auth_states;
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bool got_explicit_auth_level_connect;
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struct dcesrv_auth *default_auth_level_connect;
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bool client_hdr_signing;
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bool support_hdr_signing;
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bool negotiated_hdr_signing;
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/*
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* remember which pdu types are allowed
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*/
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bool allow_bind;
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bool allow_alter;
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/* the association group the connection belongs to */
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struct dcesrv_assoc_group *assoc_group;
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/* The maximum total payload of reassembled request pdus */
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size_t max_total_request_size;
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/*
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* Our preferred transfer syntax.
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*/
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const struct ndr_syntax_id *preferred_transfer;
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/*
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* This is used to block the connection during
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* pending authentication.
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*/
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struct tevent_req *(*wait_send)(TALLOC_CTX *mem_ctx,
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struct tevent_context *ev,
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void *private_data);
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NTSTATUS (*wait_recv)(struct tevent_req *req);
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void *wait_private;
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};
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struct dcesrv_endpoint_server {
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/* this is the name of the endpoint server */
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const char *name;
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/* this function should register endpoints and some other setup stuff,
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* it is called when the dcesrv_context gets initialized.
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*/
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NTSTATUS (*init_server)(struct dcesrv_context *, const struct dcesrv_endpoint_server *);
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/* this function can be used by other endpoint servers to
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* ask for a dcesrv_interface implementation
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* - iface must be reference to an already existing struct !
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*/
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bool (*interface_by_uuid)(struct dcesrv_interface *iface, const struct GUID *, uint32_t);
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/* this function can be used by other endpoint servers to
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* ask for a dcesrv_interface implementation
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* - iface must be reference to an already existeng struct !
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*/
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bool (*interface_by_name)(struct dcesrv_interface *iface, const char *);
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};
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/* one association groups */
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struct dcesrv_assoc_group {
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/* the wire id */
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uint32_t id;
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/* The transport this is valid on */
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enum dcerpc_transport_t transport;
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/* list of handles in this association group */
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struct dcesrv_handle *handles;
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/*
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* list of iface states per assoc/conn
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*/
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struct dcesrv_iface_state *iface_states;
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/* parent context */
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struct dcesrv_context *dce_ctx;
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/* the negotiated bind time features */
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uint16_t bind_time_features;
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};
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struct dcesrv_context_callbacks {
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struct {
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void (*successful_authz)(struct dcesrv_call_state *);
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} log;
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struct {
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NTSTATUS (*gensec_prepare)(TALLOC_CTX *mem_ctx,
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struct dcesrv_call_state *call,
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struct gensec_security **out);
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} auth;
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struct {
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NTSTATUS (*find)(struct dcesrv_call_state *);
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} assoc_group;
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};
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/* server-wide context information for the dcerpc server */
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struct dcesrv_context {
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/*
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* The euid at startup time.
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*
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* This is required for DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM
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*/
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uid_t initial_euid;
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/* the list of endpoints that have registered
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* by the configured endpoint servers
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*/
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struct dcesrv_endpoint {
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struct dcesrv_endpoint *next, *prev;
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/* the type and location of the endpoint */
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struct dcerpc_binding *ep_description;
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/* the secondary endpoint description for the BIND_ACK */
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struct dcerpc_binding *ep_2nd_description;
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/* the security descriptor for smb named pipes */
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struct security_descriptor *sd;
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/* the list of interfaces available on this endpoint */
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struct dcesrv_if_list {
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struct dcesrv_if_list *next, *prev;
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struct dcesrv_interface iface;
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} *interface_list;
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/*
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* Should this service be run in a single process (so far only
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* NETLOGON is not run in a single process)
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*/
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bool use_single_process;
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} *endpoint_list;
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/* loadparm context to use for this connection */
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struct loadparm_context *lp_ctx;
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struct idr_context *assoc_groups_idr;
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struct dcesrv_connection *broken_connections;
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struct dcesrv_context_callbacks callbacks;
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};
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/* this structure is used by modules to determine the size of some critical types */
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struct dcesrv_critical_sizes {
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int interface_version;
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int sizeof_dcesrv_context;
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int sizeof_dcesrv_endpoint;
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int sizeof_dcesrv_endpoint_server;
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int sizeof_dcesrv_interface;
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int sizeof_dcesrv_if_list;
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int sizeof_dcesrv_connection;
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int sizeof_dcesrv_call_state;
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int sizeof_dcesrv_auth;
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int sizeof_dcesrv_handle;
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};
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NTSTATUS dcesrv_interface_register(struct dcesrv_context *dce_ctx,
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const char *ep_name,
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const char *ncacn_np_secondary_endpoint,
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const struct dcesrv_interface *iface,
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const struct security_descriptor *sd);
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NTSTATUS dcerpc_register_ep_server(const struct dcesrv_endpoint_server *ep_server);
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const struct dcesrv_endpoint_server *dcesrv_ep_server_byname(const char *name);
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NTSTATUS dcesrv_init_context(TALLOC_CTX *mem_ctx,
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struct loadparm_context *lp_ctx,
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const char **endpoint_servers,
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struct dcesrv_context_callbacks *cb,
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struct dcesrv_context **_dce_ctx);
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NTSTATUS dcesrv_reply(struct dcesrv_call_state *call);
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struct dcesrv_handle *dcesrv_handle_create(struct dcesrv_call_state *call,
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uint8_t handle_type);
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struct dcesrv_handle *dcesrv_handle_lookup(struct dcesrv_call_state *call,
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const struct policy_handle *p,
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uint8_t handle_type);
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const struct tsocket_address *dcesrv_connection_get_local_address(struct dcesrv_connection *conn);
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const struct tsocket_address *dcesrv_connection_get_remote_address(struct dcesrv_connection *conn);
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/*
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* Fetch the authentication session key if available.
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*
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* This is the key generated by a gensec authentication.
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*/
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NTSTATUS dcesrv_auth_session_key(struct dcesrv_call_state *call,
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DATA_BLOB *session_key);
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/*
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* Fetch the transport session key if available.
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* Typically this is the SMB session key
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* or a fixed key for local transports.
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*
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* The key is always truncated to 16 bytes.
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*/
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NTSTATUS dcesrv_transport_session_key(struct dcesrv_call_state *call,
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DATA_BLOB *session_key);
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/* a useful macro for generating a RPC fault in the backend code */
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#define DCESRV_FAULT(code) do { \
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dce_call->fault_code = code; \
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return r->out.result; \
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} while(0)
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/* a useful macro for generating a RPC fault in the backend code */
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#define DCESRV_FAULT_VOID(code) do { \
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dce_call->fault_code = code; \
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return; \
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} while(0)
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/* a useful macro for checking the validity of a dcerpc policy handle
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and giving the right fault code if invalid */
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#define DCESRV_CHECK_HANDLE(h) do {if (!(h)) DCESRV_FAULT(DCERPC_FAULT_CONTEXT_MISMATCH); } while (0)
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/* this checks for a valid policy handle, and gives a fault if an
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invalid handle or retval if the handle is of the
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wrong type */
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#define DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, retval) do { \
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(h) = dcesrv_handle_lookup(dce_call, (inhandle), DCESRV_HANDLE_ANY); \
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DCESRV_CHECK_HANDLE(h); \
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if ((t) != DCESRV_HANDLE_ANY && (h)->wire_handle.handle_type != (t)) { \
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return retval; \
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} \
|
||||
} while (0)
|
||||
|
||||
/* this checks for a valid policy handle and gives a dcerpc fault
|
||||
if its the wrong type of handle */
|
||||
#define DCESRV_PULL_HANDLE_FAULT(h, inhandle, t) do { \
|
||||
(h) = dcesrv_handle_lookup(dce_call, (inhandle), t); \
|
||||
DCESRV_CHECK_HANDLE(h); \
|
||||
} while (0)
|
||||
|
||||
#define DCESRV_PULL_HANDLE(h, inhandle, t) DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, NT_STATUS_INVALID_HANDLE)
|
||||
#define DCESRV_PULL_HANDLE_WERR(h, inhandle, t) DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, WERR_INVALID_HANDLE)
|
||||
|
||||
/**
|
||||
* retrieve credentials from a dce_call
|
||||
*/
|
||||
_PUBLIC_ struct cli_credentials *dcesrv_call_credentials(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* returns true if this is an authenticated call
|
||||
*/
|
||||
_PUBLIC_ bool dcesrv_call_authenticated(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* retrieve account_name for a dce_call
|
||||
*/
|
||||
_PUBLIC_ const char *dcesrv_call_account_name(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* retrieve session_info from a dce_call
|
||||
*/
|
||||
_PUBLIC_ struct auth_session_info *dcesrv_call_session_info(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* retrieve auth type/level from a dce_call
|
||||
*/
|
||||
_PUBLIC_ void dcesrv_call_auth_info(struct dcesrv_call_state *dce_call,
|
||||
enum dcerpc_AuthType *auth_type,
|
||||
enum dcerpc_AuthLevel *auth_level);
|
||||
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_require_integrity(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_require_privacy(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_reject_connect(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_allow_connect(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
|
||||
_PUBLIC_ NTSTATUS _dcesrv_iface_state_store_assoc(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic,
|
||||
void *ptr,
|
||||
const char *location);
|
||||
#define dcesrv_iface_state_store_assoc(call, magic, ptr) \
|
||||
_dcesrv_iface_state_store_assoc((call), (magic), (ptr), \
|
||||
__location__)
|
||||
_PUBLIC_ void *_dcesrv_iface_state_find_assoc(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic);
|
||||
#define dcesrv_iface_state_find_assoc(call, magic, _type) \
|
||||
talloc_get_type( \
|
||||
_dcesrv_iface_state_find_assoc((call), (magic)), \
|
||||
_type)
|
||||
|
||||
_PUBLIC_ NTSTATUS _dcesrv_iface_state_store_conn(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic,
|
||||
void *_pptr,
|
||||
const char *location);
|
||||
#define dcesrv_iface_state_store_conn(call, magic, ptr) \
|
||||
_dcesrv_iface_state_store_conn((call), (magic), (ptr), \
|
||||
__location__)
|
||||
_PUBLIC_ void *_dcesrv_iface_state_find_conn(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic);
|
||||
#define dcesrv_iface_state_find_conn(call, magic, _type) \
|
||||
talloc_get_type( \
|
||||
_dcesrv_iface_state_find_conn((call), (magic)), \
|
||||
_type)
|
||||
|
||||
_PUBLIC_ void dcesrv_cleanup_broken_connections(struct dcesrv_context *dce_ctx);
|
||||
|
||||
_PUBLIC_ NTSTATUS dcesrv_endpoint_connect(struct dcesrv_context *dce_ctx,
|
||||
TALLOC_CTX *mem_ctx,
|
||||
const struct dcesrv_endpoint *ep,
|
||||
struct auth_session_info *session_info,
|
||||
struct tevent_context *event_ctx,
|
||||
uint32_t state_flags,
|
||||
struct dcesrv_connection **_p);
|
||||
|
||||
_PUBLIC_ void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn,
|
||||
const char *reason);
|
||||
_PUBLIC_ void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn);
|
||||
|
||||
_PUBLIC_ NTSTATUS dcesrv_connection_loop_start(struct dcesrv_connection *conn);
|
||||
|
||||
#endif /* _LIBRPC_RPC_DCESRV_CORE_H_ */
|
||||
|
||||
@ -23,502 +23,10 @@
|
||||
#ifndef SAMBA_DCERPC_SERVER_H
|
||||
#define SAMBA_DCERPC_SERVER_H
|
||||
|
||||
#include "librpc/rpc/rpc_common.h"
|
||||
#include "librpc/ndr/libndr.h"
|
||||
|
||||
/* modules can use the following to determine if the interface has changed
|
||||
* please increment the version number after each interface change
|
||||
* with a comment and maybe update struct dcesrv_critical_sizes.
|
||||
*/
|
||||
/* version 1 - initial version - metze */
|
||||
#define DCERPC_MODULE_VERSION 1
|
||||
|
||||
struct dcesrv_connection;
|
||||
struct dcesrv_call_state;
|
||||
struct dcesrv_auth;
|
||||
struct dcesrv_connection_context;
|
||||
struct dcesrv_iface_state;
|
||||
struct cli_credentials;
|
||||
|
||||
struct dcesrv_interface {
|
||||
const char *name;
|
||||
struct ndr_syntax_id syntax_id;
|
||||
|
||||
/* this function is called when the client binds to this interface */
|
||||
NTSTATUS (*bind)(struct dcesrv_connection_context *, const struct dcesrv_interface *);
|
||||
|
||||
/* this function is called when the client disconnects the endpoint */
|
||||
void (*unbind)(struct dcesrv_connection_context *, const struct dcesrv_interface *);
|
||||
|
||||
/* the ndr_pull function for the chosen interface.
|
||||
*/
|
||||
NTSTATUS (*ndr_pull)(struct dcesrv_call_state *, TALLOC_CTX *, struct ndr_pull *, void **);
|
||||
|
||||
/* the dispatch function for the chosen interface.
|
||||
*/
|
||||
NTSTATUS (*dispatch)(struct dcesrv_call_state *, TALLOC_CTX *, void *);
|
||||
|
||||
/* the reply function for the chosen interface.
|
||||
*/
|
||||
NTSTATUS (*reply)(struct dcesrv_call_state *, TALLOC_CTX *, void *);
|
||||
|
||||
/* the ndr_push function for the chosen interface.
|
||||
*/
|
||||
NTSTATUS (*ndr_push)(struct dcesrv_call_state *, TALLOC_CTX *, struct ndr_push *, const void *);
|
||||
|
||||
/* for any private use by the interface code */
|
||||
const void *private_data;
|
||||
|
||||
uint64_t flags;
|
||||
};
|
||||
|
||||
#define DCESRV_INTERFACE_FLAGS_HANDLES_NOT_USED 0x00000001
|
||||
|
||||
enum dcesrv_call_list {
|
||||
DCESRV_LIST_NONE,
|
||||
DCESRV_LIST_CALL_LIST,
|
||||
DCESRV_LIST_FRAGMENTED_CALL_LIST,
|
||||
DCESRV_LIST_PENDING_CALL_LIST
|
||||
};
|
||||
|
||||
struct data_blob_list_item {
|
||||
struct data_blob_list_item *prev,*next;
|
||||
DATA_BLOB blob;
|
||||
};
|
||||
|
||||
/* the state of an ongoing dcerpc call */
|
||||
struct dcesrv_call_state {
|
||||
struct dcesrv_call_state *next, *prev;
|
||||
struct dcesrv_auth *auth_state;
|
||||
struct dcesrv_connection *conn;
|
||||
struct dcesrv_connection_context *context;
|
||||
struct ncacn_packet pkt;
|
||||
|
||||
/*
|
||||
* Used during async bind/alter_context.
|
||||
*/
|
||||
struct ncacn_packet ack_pkt;
|
||||
|
||||
/*
|
||||
which list this request is in, if any
|
||||
*/
|
||||
enum dcesrv_call_list list;
|
||||
|
||||
/* the backend can mark the call
|
||||
* with DCESRV_CALL_STATE_FLAG_ASYNC
|
||||
* that will cause the frontend to not touch r->out
|
||||
* and skip the reply
|
||||
*
|
||||
* this is only allowed to the backend when DCESRV_CALL_STATE_FLAG_MAY_ASYNC
|
||||
* is alerady set by the frontend
|
||||
*
|
||||
* the backend then needs to call dcesrv_reply() when it's
|
||||
* ready to send the reply
|
||||
*/
|
||||
#define DCESRV_CALL_STATE_FLAG_ASYNC (1<<0)
|
||||
#define DCESRV_CALL_STATE_FLAG_MAY_ASYNC (1<<1)
|
||||
#define DCESRV_CALL_STATE_FLAG_MULTIPLEXED (1<<3)
|
||||
#define DCESRV_CALL_STATE_FLAG_PROCESS_PENDING_CALL (1<<4)
|
||||
uint32_t state_flags;
|
||||
|
||||
/* the time the request arrived in the server */
|
||||
struct timeval time;
|
||||
|
||||
/* the backend can use this event context for async replies */
|
||||
struct tevent_context *event_ctx;
|
||||
|
||||
/* this is the pointer to the allocated function struct */
|
||||
void *r;
|
||||
|
||||
/*
|
||||
* that's the ndr pull context used in dcesrv_request()
|
||||
* needed by dcesrv_reply() to carry over information
|
||||
* for full pointer support.
|
||||
*/
|
||||
struct ndr_pull *ndr_pull;
|
||||
|
||||
DATA_BLOB input;
|
||||
|
||||
struct data_blob_list_item *replies;
|
||||
|
||||
/* this is used by the boilerplate code to generate DCERPC faults */
|
||||
uint32_t fault_code;
|
||||
|
||||
/* the reason why we terminate the connection after sending a response */
|
||||
const char *terminate_reason;
|
||||
|
||||
/* temporary auth_info fields */
|
||||
struct dcerpc_auth in_auth_info;
|
||||
struct dcerpc_auth _out_auth_info;
|
||||
struct dcerpc_auth *out_auth_info;
|
||||
};
|
||||
|
||||
/*
|
||||
* DCERPC Handles
|
||||
* --------------
|
||||
* The various handles that are used in the RPC servers should be
|
||||
* created and fetch using the dcesrv_handle_* functions.
|
||||
*
|
||||
* Use
|
||||
* dcesrv_handle_create(struct dcesrv_call_state \*, uint8 handle_type)
|
||||
* to obtain a new handle of the specified type. Handle types are
|
||||
* unique within each pipe.
|
||||
*
|
||||
* The handle can later be fetched again using:
|
||||
*
|
||||
* struct dcesrv_handle *dcesrv_handle_lookup(
|
||||
* struct dcesrv_call_state *dce_call,
|
||||
* struct policy_handle *p,
|
||||
* uint8 handle_type)
|
||||
*
|
||||
* and destroyed by:
|
||||
*
|
||||
* TALLOC_FREE(struct dcesrv_handle *).
|
||||
*
|
||||
* User data should be stored in the 'data' member of the dcesrv_handle
|
||||
* struct.
|
||||
*/
|
||||
|
||||
#define DCESRV_HANDLE_ANY 255
|
||||
|
||||
/* a dcerpc handle in internal format */
|
||||
struct dcesrv_handle {
|
||||
struct dcesrv_handle *next, *prev;
|
||||
struct dcesrv_assoc_group *assoc_group;
|
||||
struct policy_handle wire_handle;
|
||||
struct dom_sid *sid;
|
||||
enum dcerpc_AuthLevel min_auth_level;
|
||||
const struct dcesrv_interface *iface;
|
||||
void *data;
|
||||
};
|
||||
|
||||
/* hold the authentication state information */
|
||||
struct dcesrv_auth {
|
||||
struct dcesrv_auth *prev, *next;
|
||||
enum dcerpc_AuthType auth_type;
|
||||
enum dcerpc_AuthLevel auth_level;
|
||||
uint32_t auth_context_id;
|
||||
struct gensec_security *gensec_security;
|
||||
struct auth_session_info *session_info;
|
||||
NTSTATUS (*session_key_fn)(struct dcesrv_auth *, DATA_BLOB *session_key);
|
||||
bool auth_started;
|
||||
bool auth_finished;
|
||||
bool auth_audited;
|
||||
bool auth_invalid;
|
||||
};
|
||||
|
||||
struct dcesrv_connection_context {
|
||||
struct dcesrv_connection_context *next, *prev;
|
||||
uint16_t context_id;
|
||||
|
||||
/* the connection this is on */
|
||||
struct dcesrv_connection *conn;
|
||||
|
||||
/* the ndr function table for the chosen interface */
|
||||
const struct dcesrv_interface *iface;
|
||||
|
||||
/*
|
||||
* the minimum required auth level for this interface
|
||||
*/
|
||||
enum dcerpc_AuthLevel min_auth_level;
|
||||
bool allow_connect;
|
||||
|
||||
/* the negotiated transfer syntax */
|
||||
struct ndr_syntax_id transfer_syntax;
|
||||
};
|
||||
|
||||
|
||||
/* the state associated with a dcerpc server connection */
|
||||
struct dcesrv_connection {
|
||||
/* for the broken_connections DLIST */
|
||||
struct dcesrv_connection *prev, *next;
|
||||
|
||||
/* the top level context for this server */
|
||||
struct dcesrv_context *dce_ctx;
|
||||
|
||||
/* the endpoint that was opened */
|
||||
const struct dcesrv_endpoint *endpoint;
|
||||
|
||||
/* a list of established context_ids */
|
||||
struct dcesrv_connection_context *contexts;
|
||||
|
||||
/* the state of the current incoming call fragments */
|
||||
struct dcesrv_call_state *incoming_fragmented_call_list;
|
||||
|
||||
/* the state of the async pending calls */
|
||||
struct dcesrv_call_state *pending_call_list;
|
||||
|
||||
/* the state of the current outgoing calls */
|
||||
struct dcesrv_call_state *call_list;
|
||||
|
||||
/* the maximum size the client wants to receive */
|
||||
uint16_t max_recv_frag;
|
||||
uint16_t max_xmit_frag;
|
||||
|
||||
DATA_BLOB partial_input;
|
||||
|
||||
/* the event_context that will be used for this connection */
|
||||
struct tevent_context *event_ctx;
|
||||
|
||||
/* is this connection pending termination? If so, why? */
|
||||
const char *terminate;
|
||||
|
||||
const char *packet_log_dir;
|
||||
|
||||
/* this is the default state_flags for dcesrv_call_state structs */
|
||||
uint32_t state_flags;
|
||||
|
||||
struct {
|
||||
void *private_data;
|
||||
void (*report_output_data)(struct dcesrv_connection *);
|
||||
void (*terminate_connection)(struct dcesrv_connection *,
|
||||
const char *);
|
||||
} transport;
|
||||
|
||||
struct tstream_context *stream;
|
||||
struct tevent_queue *send_queue;
|
||||
|
||||
const struct tsocket_address *local_address;
|
||||
const struct tsocket_address *remote_address;
|
||||
|
||||
/* the current authentication state */
|
||||
struct dcesrv_auth *default_auth_state;
|
||||
size_t max_auth_states;
|
||||
struct dcesrv_auth *auth_states;
|
||||
bool got_explicit_auth_level_connect;
|
||||
struct dcesrv_auth *default_auth_level_connect;
|
||||
bool client_hdr_signing;
|
||||
bool support_hdr_signing;
|
||||
bool negotiated_hdr_signing;
|
||||
|
||||
/*
|
||||
* remember which pdu types are allowed
|
||||
*/
|
||||
bool allow_bind;
|
||||
bool allow_alter;
|
||||
|
||||
/* the association group the connection belongs to */
|
||||
struct dcesrv_assoc_group *assoc_group;
|
||||
|
||||
/* The maximum total payload of reassembled request pdus */
|
||||
size_t max_total_request_size;
|
||||
|
||||
/*
|
||||
* Our preferred transfer syntax.
|
||||
*/
|
||||
const struct ndr_syntax_id *preferred_transfer;
|
||||
|
||||
/*
|
||||
* This is used to block the connection during
|
||||
* pending authentication.
|
||||
*/
|
||||
struct tevent_req *(*wait_send)(TALLOC_CTX *mem_ctx,
|
||||
struct tevent_context *ev,
|
||||
void *private_data);
|
||||
NTSTATUS (*wait_recv)(struct tevent_req *req);
|
||||
void *wait_private;
|
||||
};
|
||||
|
||||
|
||||
struct dcesrv_endpoint_server {
|
||||
/* this is the name of the endpoint server */
|
||||
const char *name;
|
||||
|
||||
/* this function should register endpoints and some other setup stuff,
|
||||
* it is called when the dcesrv_context gets initialized.
|
||||
*/
|
||||
NTSTATUS (*init_server)(struct dcesrv_context *, const struct dcesrv_endpoint_server *);
|
||||
|
||||
/* this function can be used by other endpoint servers to
|
||||
* ask for a dcesrv_interface implementation
|
||||
* - iface must be reference to an already existing struct !
|
||||
*/
|
||||
bool (*interface_by_uuid)(struct dcesrv_interface *iface, const struct GUID *, uint32_t);
|
||||
|
||||
/* this function can be used by other endpoint servers to
|
||||
* ask for a dcesrv_interface implementation
|
||||
* - iface must be reference to an already existeng struct !
|
||||
*/
|
||||
bool (*interface_by_name)(struct dcesrv_interface *iface, const char *);
|
||||
};
|
||||
|
||||
|
||||
/* one association groups */
|
||||
struct dcesrv_assoc_group {
|
||||
/* the wire id */
|
||||
uint32_t id;
|
||||
|
||||
/* The transport this is valid on */
|
||||
enum dcerpc_transport_t transport;
|
||||
|
||||
/* list of handles in this association group */
|
||||
struct dcesrv_handle *handles;
|
||||
|
||||
/*
|
||||
* list of iface states per assoc/conn
|
||||
*/
|
||||
struct dcesrv_iface_state *iface_states;
|
||||
|
||||
/* parent context */
|
||||
struct dcesrv_context *dce_ctx;
|
||||
|
||||
/* the negotiated bind time features */
|
||||
uint16_t bind_time_features;
|
||||
};
|
||||
|
||||
struct dcesrv_context_callbacks {
|
||||
struct {
|
||||
void (*successful_authz)(struct dcesrv_call_state *);
|
||||
} log;
|
||||
struct {
|
||||
NTSTATUS (*gensec_prepare)(TALLOC_CTX *mem_ctx,
|
||||
struct dcesrv_call_state *call,
|
||||
struct gensec_security **out);
|
||||
} auth;
|
||||
struct {
|
||||
NTSTATUS (*find)(struct dcesrv_call_state *);
|
||||
} assoc_group;
|
||||
};
|
||||
|
||||
/* server-wide context information for the dcerpc server */
|
||||
struct dcesrv_context {
|
||||
/*
|
||||
* The euid at startup time.
|
||||
*
|
||||
* This is required for DCERPC_AUTH_TYPE_NCALRPC_AS_SYSTEM
|
||||
*/
|
||||
uid_t initial_euid;
|
||||
|
||||
/* the list of endpoints that have registered
|
||||
* by the configured endpoint servers
|
||||
*/
|
||||
struct dcesrv_endpoint {
|
||||
struct dcesrv_endpoint *next, *prev;
|
||||
/* the type and location of the endpoint */
|
||||
struct dcerpc_binding *ep_description;
|
||||
/* the secondary endpoint description for the BIND_ACK */
|
||||
struct dcerpc_binding *ep_2nd_description;
|
||||
/* the security descriptor for smb named pipes */
|
||||
struct security_descriptor *sd;
|
||||
/* the list of interfaces available on this endpoint */
|
||||
struct dcesrv_if_list {
|
||||
struct dcesrv_if_list *next, *prev;
|
||||
struct dcesrv_interface iface;
|
||||
} *interface_list;
|
||||
|
||||
/*
|
||||
* Should this service be run in a single process (so far only
|
||||
* NETLOGON is not run in a single process)
|
||||
*/
|
||||
bool use_single_process;
|
||||
} *endpoint_list;
|
||||
|
||||
/* loadparm context to use for this connection */
|
||||
struct loadparm_context *lp_ctx;
|
||||
|
||||
struct idr_context *assoc_groups_idr;
|
||||
|
||||
struct dcesrv_connection *broken_connections;
|
||||
|
||||
struct dcesrv_context_callbacks callbacks;
|
||||
};
|
||||
|
||||
/* this structure is used by modules to determine the size of some critical types */
|
||||
struct dcesrv_critical_sizes {
|
||||
int interface_version;
|
||||
int sizeof_dcesrv_context;
|
||||
int sizeof_dcesrv_endpoint;
|
||||
int sizeof_dcesrv_endpoint_server;
|
||||
int sizeof_dcesrv_interface;
|
||||
int sizeof_dcesrv_if_list;
|
||||
int sizeof_dcesrv_connection;
|
||||
int sizeof_dcesrv_call_state;
|
||||
int sizeof_dcesrv_auth;
|
||||
int sizeof_dcesrv_handle;
|
||||
};
|
||||
#include "librpc/rpc/dcesrv_core.h"
|
||||
|
||||
struct model_ops;
|
||||
|
||||
NTSTATUS dcesrv_interface_register(struct dcesrv_context *dce_ctx,
|
||||
const char *ep_name,
|
||||
const char *ncacn_np_secondary_endpoint,
|
||||
const struct dcesrv_interface *iface,
|
||||
const struct security_descriptor *sd);
|
||||
NTSTATUS dcerpc_register_ep_server(const struct dcesrv_endpoint_server *ep_server);
|
||||
const struct dcesrv_endpoint_server *dcesrv_ep_server_byname(const char *name);
|
||||
|
||||
NTSTATUS dcesrv_init_context(TALLOC_CTX *mem_ctx,
|
||||
struct loadparm_context *lp_ctx,
|
||||
const char **endpoint_servers,
|
||||
struct dcesrv_context_callbacks *cb,
|
||||
struct dcesrv_context **_dce_ctx);
|
||||
|
||||
NTSTATUS dcesrv_reply(struct dcesrv_call_state *call);
|
||||
struct dcesrv_handle *dcesrv_handle_create(struct dcesrv_call_state *call,
|
||||
uint8_t handle_type);
|
||||
|
||||
struct dcesrv_handle *dcesrv_handle_lookup(struct dcesrv_call_state *call,
|
||||
const struct policy_handle *p,
|
||||
uint8_t handle_type);
|
||||
|
||||
const struct tsocket_address *dcesrv_connection_get_local_address(struct dcesrv_connection *conn);
|
||||
const struct tsocket_address *dcesrv_connection_get_remote_address(struct dcesrv_connection *conn);
|
||||
|
||||
/*
|
||||
* Fetch the authentication session key if available.
|
||||
*
|
||||
* This is the key generated by a gensec authentication.
|
||||
*/
|
||||
NTSTATUS dcesrv_auth_session_key(struct dcesrv_call_state *call,
|
||||
DATA_BLOB *session_key);
|
||||
|
||||
/*
|
||||
* Fetch the transport session key if available.
|
||||
* Typically this is the SMB session key
|
||||
* or a fixed key for local transports.
|
||||
*
|
||||
* The key is always truncated to 16 bytes.
|
||||
*/
|
||||
NTSTATUS dcesrv_transport_session_key(struct dcesrv_call_state *call,
|
||||
DATA_BLOB *session_key);
|
||||
|
||||
/* a useful macro for generating a RPC fault in the backend code */
|
||||
#define DCESRV_FAULT(code) do { \
|
||||
dce_call->fault_code = code; \
|
||||
return r->out.result; \
|
||||
} while(0)
|
||||
|
||||
/* a useful macro for generating a RPC fault in the backend code */
|
||||
#define DCESRV_FAULT_VOID(code) do { \
|
||||
dce_call->fault_code = code; \
|
||||
return; \
|
||||
} while(0)
|
||||
|
||||
/* a useful macro for checking the validity of a dcerpc policy handle
|
||||
and giving the right fault code if invalid */
|
||||
#define DCESRV_CHECK_HANDLE(h) do {if (!(h)) DCESRV_FAULT(DCERPC_FAULT_CONTEXT_MISMATCH); } while (0)
|
||||
|
||||
/* this checks for a valid policy handle, and gives a fault if an
|
||||
invalid handle or retval if the handle is of the
|
||||
wrong type */
|
||||
#define DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, retval) do { \
|
||||
(h) = dcesrv_handle_lookup(dce_call, (inhandle), DCESRV_HANDLE_ANY); \
|
||||
DCESRV_CHECK_HANDLE(h); \
|
||||
if ((t) != DCESRV_HANDLE_ANY && (h)->wire_handle.handle_type != (t)) { \
|
||||
return retval; \
|
||||
} \
|
||||
} while (0)
|
||||
|
||||
/* this checks for a valid policy handle and gives a dcerpc fault
|
||||
if its the wrong type of handle */
|
||||
#define DCESRV_PULL_HANDLE_FAULT(h, inhandle, t) do { \
|
||||
(h) = dcesrv_handle_lookup(dce_call, (inhandle), t); \
|
||||
DCESRV_CHECK_HANDLE(h); \
|
||||
} while (0)
|
||||
|
||||
#define DCESRV_PULL_HANDLE(h, inhandle, t) DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, NT_STATUS_INVALID_HANDLE)
|
||||
#define DCESRV_PULL_HANDLE_WERR(h, inhandle, t) DCESRV_PULL_HANDLE_RETVAL(h, inhandle, t, WERR_INVALID_HANDLE)
|
||||
|
||||
NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
|
||||
struct loadparm_context *lp_ctx,
|
||||
struct dcesrv_endpoint *e,
|
||||
@ -526,92 +34,8 @@ NTSTATUS dcesrv_add_ep(struct dcesrv_context *dce_ctx,
|
||||
const struct model_ops *model_ops,
|
||||
void *process_context);
|
||||
|
||||
/**
|
||||
* retrieve credentials from a dce_call
|
||||
*/
|
||||
_PUBLIC_ struct cli_credentials *dcesrv_call_credentials(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* returns true if this is an authenticated call
|
||||
*/
|
||||
_PUBLIC_ bool dcesrv_call_authenticated(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* retrieve account_name for a dce_call
|
||||
*/
|
||||
_PUBLIC_ const char *dcesrv_call_account_name(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* retrieve session_info from a dce_call
|
||||
*/
|
||||
_PUBLIC_ struct auth_session_info *dcesrv_call_session_info(struct dcesrv_call_state *dce_call);
|
||||
|
||||
/**
|
||||
* retrieve auth type/level from a dce_call
|
||||
*/
|
||||
_PUBLIC_ void dcesrv_call_auth_info(struct dcesrv_call_state *dce_call,
|
||||
enum dcerpc_AuthType *auth_type,
|
||||
enum dcerpc_AuthLevel *auth_level);
|
||||
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_require_integrity(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_require_privacy(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_reject_connect(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
_PUBLIC_ NTSTATUS dcesrv_interface_bind_allow_connect(struct dcesrv_connection_context *context,
|
||||
const struct dcesrv_interface *iface);
|
||||
|
||||
_PUBLIC_ NTSTATUS _dcesrv_iface_state_store_assoc(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic,
|
||||
void *ptr,
|
||||
const char *location);
|
||||
#define dcesrv_iface_state_store_assoc(call, magic, ptr) \
|
||||
_dcesrv_iface_state_store_assoc((call), (magic), (ptr), \
|
||||
__location__)
|
||||
_PUBLIC_ void *_dcesrv_iface_state_find_assoc(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic);
|
||||
#define dcesrv_iface_state_find_assoc(call, magic, _type) \
|
||||
talloc_get_type( \
|
||||
_dcesrv_iface_state_find_assoc((call), (magic)), \
|
||||
_type)
|
||||
|
||||
_PUBLIC_ NTSTATUS _dcesrv_iface_state_store_conn(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic,
|
||||
void *_pptr,
|
||||
const char *location);
|
||||
#define dcesrv_iface_state_store_conn(call, magic, ptr) \
|
||||
_dcesrv_iface_state_store_conn((call), (magic), (ptr), \
|
||||
__location__)
|
||||
_PUBLIC_ void *_dcesrv_iface_state_find_conn(
|
||||
struct dcesrv_call_state *call,
|
||||
uint64_t magic);
|
||||
#define dcesrv_iface_state_find_conn(call, magic, _type) \
|
||||
talloc_get_type( \
|
||||
_dcesrv_iface_state_find_conn((call), (magic)), \
|
||||
_type)
|
||||
|
||||
_PUBLIC_ void dcesrv_cleanup_broken_connections(struct dcesrv_context *dce_ctx);
|
||||
|
||||
_PUBLIC_ NTSTATUS dcesrv_endpoint_connect(struct dcesrv_context *dce_ctx,
|
||||
TALLOC_CTX *mem_ctx,
|
||||
const struct dcesrv_endpoint *ep,
|
||||
struct auth_session_info *session_info,
|
||||
struct tevent_context *event_ctx,
|
||||
uint32_t state_flags,
|
||||
struct dcesrv_connection **_p);
|
||||
|
||||
_PUBLIC_ void dcesrv_terminate_connection(struct dcesrv_connection *dce_conn,
|
||||
const char *reason);
|
||||
_PUBLIC_ void dcesrv_sock_report_output_data(struct dcesrv_connection *dce_conn);
|
||||
|
||||
_PUBLIC_ struct imessaging_context *dcesrv_imessaging_context(
|
||||
struct dcesrv_connection *conn);
|
||||
_PUBLIC_ struct server_id dcesrv_server_id(struct dcesrv_connection *conn);
|
||||
|
||||
_PUBLIC_ NTSTATUS dcesrv_connection_loop_start(struct dcesrv_connection *conn);
|
||||
|
||||
#endif /* SAMBA_DCERPC_SERVER_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user