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/*
Unix SMB/CIFS implementation.
DCERPC client side interface structures
Copyright (C) Tim Potter 2003
Copyright (C) Andrew Tridgell 2003-2005
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/>.
*/
#ifndef __DCERPC_H__
#define __DCERPC_H__
#include "lib/util/data_blob.h"
#include "librpc/gen_ndr/dcerpc.h"
#include "librpc/ndr/libndr.h"
enum dcerpc_transport_t {
NCA_UNKNOWN, NCACN_NP, NCACN_IP_TCP, NCACN_IP_UDP, NCACN_VNS_IPC,
NCACN_VNS_SPP, NCACN_AT_DSP, NCADG_AT_DDP, NCALRPC, NCACN_UNIX_STREAM,
NCADG_UNIX_DGRAM, NCACN_HTTP, NCADG_IPX, NCACN_SPX };
/*
this defines a generic security context for signed/sealed dcerpc pipes.
*/
struct dcerpc_connection;
struct dcerpc_security {
struct dcerpc_auth *auth_info;
struct gensec_security *generic_state;
/* get the session key */
NTSTATUS (*session_key)(struct dcerpc_connection *, DATA_BLOB *);
};
/*
this holds the information that is not specific to a particular rpc context_id
*/
struct dcerpc_connection {
uint32_t call_id;
uint32_t srv_max_xmit_frag;
uint32_t srv_max_recv_frag;
uint32_t flags;
struct dcerpc_security security_state;
const char *binding_string;
struct event_context *event_ctx;
bool dead;
bool free_skipped;
struct dcerpc_transport {
enum dcerpc_transport_t transport;
void *private_data;
NTSTATUS (*shutdown_pipe)(struct dcerpc_connection *, NTSTATUS status);
const char *(*peer_name)(struct dcerpc_connection *);
const char *(*target_hostname)(struct dcerpc_connection *);
/* send a request to the server */
NTSTATUS (*send_request)(struct dcerpc_connection *, DATA_BLOB *, bool trigger_read);
/* send a read request to the server */
NTSTATUS (*send_read)(struct dcerpc_connection *);
/* a callback to the dcerpc code when a full fragment
has been received */
void (*recv_data)(struct dcerpc_connection *, DATA_BLOB *, NTSTATUS status);
} transport;
/* Requests that have been sent, waiting for a reply */
struct rpc_request *pending;
/* Sync requests waiting to be shipped */
struct rpc_request *request_queue;
/* the next context_id to be assigned */
uint32_t next_context_id;
};
/*
this encapsulates a full dcerpc client side pipe
*/
struct dcerpc_pipe {
uint32_t context_id;
uint32_t assoc_group_id;
struct ndr_syntax_id syntax;
struct ndr_syntax_id transfer_syntax;
struct dcerpc_connection *conn;
struct dcerpc_binding *binding;
/* the last fault code from a DCERPC fault */
uint32_t last_fault_code;
/* timeout for individual rpc requests, in seconds */
uint32_t request_timeout;
};
/* default timeout for all rpc requests, in seconds */
#define DCERPC_REQUEST_TIMEOUT 60
/* dcerpc pipe flags */
#define DCERPC_DEBUG_PRINT_IN (1<<0)
#define DCERPC_DEBUG_PRINT_OUT (1<<1)
#define DCERPC_DEBUG_PRINT_BOTH (DCERPC_DEBUG_PRINT_IN | DCERPC_DEBUG_PRINT_OUT)
#define DCERPC_DEBUG_VALIDATE_IN (1<<2)
#define DCERPC_DEBUG_VALIDATE_OUT (1<<3)
#define DCERPC_DEBUG_VALIDATE_BOTH (DCERPC_DEBUG_VALIDATE_IN | DCERPC_DEBUG_VALIDATE_OUT)
#define DCERPC_CONNECT (1<<4)
#define DCERPC_SIGN (1<<5)
#define DCERPC_SEAL (1<<6)
#define DCERPC_PUSH_BIGENDIAN (1<<7)
#define DCERPC_PULL_BIGENDIAN (1<<8)
#define DCERPC_SCHANNEL (1<<9)
/* use a 128 bit session key */
#define DCERPC_SCHANNEL_128 (1<<12)
/* check incoming pad bytes */
#define DCERPC_DEBUG_PAD_CHECK (1<<13)
/* set LIBNDR_FLAG_REF_ALLOC flag when decoding NDR */
#define DCERPC_NDR_REF_ALLOC (1<<14)
#define DCERPC_AUTH_OPTIONS (DCERPC_SEAL|DCERPC_SIGN|DCERPC_SCHANNEL|DCERPC_AUTH_SPNEGO|DCERPC_AUTH_KRB5|DCERPC_AUTH_NTLM)
/* select spnego auth */
#define DCERPC_AUTH_SPNEGO (1<<15)
/* select krb5 auth */
#define DCERPC_AUTH_KRB5 (1<<16)
#define DCERPC_SMB2 (1<<17)
/* select NTLM auth */
#define DCERPC_AUTH_NTLM (1<<18)
/* this triggers the DCERPC_PFC_FLAG_CONC_MPX flag in the bind request */
#define DCERPC_CONCURRENT_MULTIPLEX (1<<19)
/* this describes a binding to a particular transport/pipe */
struct dcerpc_binding {
enum dcerpc_transport_t transport;
struct ndr_syntax_id object;
const char *host;
const char *target_hostname;
const char *endpoint;
const char **options;
uint32_t flags;
uint32_t assoc_group_id;
};
struct dcerpc_pipe_connect {
struct dcerpc_pipe *pipe;
struct dcerpc_binding *binding;
const char *pipe_name;
const struct ndr_interface_table *interface;
struct cli_credentials *creds;
const char **name_resolve_order;
};
enum rpc_request_state {
RPC_REQUEST_QUEUED,
RPC_REQUEST_PENDING,
RPC_REQUEST_DONE
};
/*
handle for an async dcerpc request
*/
struct rpc_request {
struct rpc_request *next, *prev;
struct dcerpc_pipe *p;
NTSTATUS status;
uint32_t call_id;
enum rpc_request_state state;
DATA_BLOB payload;
uint32_t flags;
uint32_t fault_code;
/* this is used to distinguish bind and alter_context requests
from normal requests */
void (*recv_handler)(struct rpc_request *conn,
DATA_BLOB *blob, struct ncacn_packet *pkt);
const struct GUID *object;
uint16_t opnum;
DATA_BLOB request_data;
bool async_call;
bool ignore_timeout;
/* use by the ndr level async recv call */
struct {
const struct ndr_interface_table *table;
uint32_t opnum;
void *struct_ptr;
TALLOC_CTX *mem_ctx;
} ndr;
struct {
void (*callback)(struct rpc_request *);
void *private_data;
} async;
};
struct epm_tower;
struct epm_floor;
struct smbcli_tree;
struct smb2_tree;
struct socket_address;
#include "librpc/rpc/dcerpc_proto.h"
#endif /* __DCERPC_H__ */
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