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/*
Unix SMB/CIFS implementation.
Copyright (C) Stefan Metzmacher 2010-2011
Copyright (C) Andrew Tridgell 2010-2011
Copyright (C) Simo Sorce 2010
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 __DEFAULT_LIBRPC_RPCCOMMON_H__
#define __DEFAULT_LIBRPC_RPCCOMMON_H__
struct dcerpc_binding_handle;
struct GUID;
struct ndr_interface_table;
struct ndr_interface_call;
struct ndr_push;
struct ndr_pull;
struct ncacn_packet;
struct epm_floor;
struct epm_tower;
struct tevent_context;
struct tstream_context;
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, NCACN_INTERNAL };
/** 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 *target_principal;
const char *endpoint;
const char **options;
const char *localaddress;
uint32_t flags;
uint32_t assoc_group_id;
};
/* 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)
#define DCERPC_ANON_FALLBACK (1<<10)
/* 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 triggers the DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN flag in the bind request */
#define DCERPC_HEADER_SIGNING (1<<20)
/* use NDR64 transport */
#define DCERPC_NDR64 (1<<21)
/* specify binding interface */
#define DCERPC_LOCALADDRESS (1<<22)
/* The following definitions come from ../librpc/rpc/dcerpc_error.c */
const char *dcerpc_errstr(TALLOC_CTX *mem_ctx, uint32_t fault_code);
NTSTATUS dcerpc_fault_to_nt_status(uint32_t fault_code);
/* The following definitions come from ../librpc/rpc/binding.c */
const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor);
const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor);
enum dcerpc_transport_t dcerpc_transport_by_endpoint_protocol(int prot);
NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx,
const struct dcerpc_binding *binding,
struct epm_tower *tower);
NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx,
struct epm_tower *tower,
struct dcerpc_binding **b_out);
NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding **b_out);
char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b);
NTSTATUS dcerpc_floor_get_lhs_data(const struct epm_floor *epm_floor, struct ndr_syntax_id *syntax);
const char *derpc_transport_string_by_transport(enum dcerpc_transport_t t);
enum dcerpc_transport_t dcerpc_transport_by_tower(const struct epm_tower *tower);
/* The following definitions come from ../librpc/rpc/dcerpc_util.c */
void dcerpc_set_frag_length(DATA_BLOB *blob, uint16_t v);
uint16_t dcerpc_get_frag_length(const DATA_BLOB *blob);
void dcerpc_set_auth_length(DATA_BLOB *blob, uint16_t v);
uint8_t dcerpc_get_endian_flag(DATA_BLOB *blob);
/**
* @brief Pull a dcerpc_auth structure, taking account of any auth
* padding in the blob. For request/response packets we pass
* the whole data blob, so auth_data_only must be set to false
* as the blob contains data+pad+auth and no just pad+auth.
*
* @param pkt - The ncacn_packet strcuture
* @param mem_ctx - The mem_ctx used to allocate dcerpc_auth elements
* @param pkt_trailer - The packet trailer data, usually the trailing
* auth_info blob, but in the request/response case
* this is the stub_and_verifier blob.
* @param auth - A preallocated dcerpc_auth *empty* structure
* @param auth_length - The length of the auth trail, sum of auth header
* lenght and pkt->auth_length
* @param auth_data_only - Whether the pkt_trailer includes only the auth_blob
* (+ padding) or also other data.
*
* @return - A NTSTATUS error code.
*/
NTSTATUS dcerpc_pull_auth_trailer(struct ncacn_packet *pkt,
TALLOC_CTX *mem_ctx,
DATA_BLOB *pkt_trailer,
struct dcerpc_auth *auth,
uint32_t *auth_length,
bool auth_data_only);
struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct tstream_context *stream);
NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
struct ncacn_packet **pkt,
DATA_BLOB *buffer);
/* The following definitions come from ../librpc/rpc/binding_handle.c */
struct dcerpc_binding_handle_ops {
const char *name;
bool (*is_connected)(struct dcerpc_binding_handle *h);
uint32_t (*set_timeout)(struct dcerpc_binding_handle *h,
uint32_t timeout);
struct tevent_req *(*raw_call_send)(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct dcerpc_binding_handle *h,
const struct GUID *object,
uint32_t opnum,
uint32_t in_flags,
const uint8_t *in_data,
size_t in_length);
NTSTATUS (*raw_call_recv)(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
uint8_t **out_data,
size_t *out_length,
uint32_t *out_flags);
struct tevent_req *(*disconnect_send)(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct dcerpc_binding_handle *h);
NTSTATUS (*disconnect_recv)(struct tevent_req *req);
/* TODO: remove the following functions */
bool (*push_bigendian)(struct dcerpc_binding_handle *h);
bool (*ref_alloc)(struct dcerpc_binding_handle *h);
bool (*use_ndr64)(struct dcerpc_binding_handle *h);
void (*do_ndr_print)(struct dcerpc_binding_handle *h,
int ndr_flags,
const void *struct_ptr,
const struct ndr_interface_call *call);
void (*ndr_push_failed)(struct dcerpc_binding_handle *h,
NTSTATUS error,
const void *struct_ptr,
const struct ndr_interface_call *call);
void (*ndr_pull_failed)(struct dcerpc_binding_handle *h,
NTSTATUS error,
const DATA_BLOB *blob,
const struct ndr_interface_call *call);
NTSTATUS (*ndr_validate_in)(struct dcerpc_binding_handle *h,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *blob,
const struct ndr_interface_call *call);
NTSTATUS (*ndr_validate_out)(struct dcerpc_binding_handle *h,
struct ndr_pull *pull_in,
const void *struct_ptr,
const struct ndr_interface_call *call);
};
struct dcerpc_binding_handle *_dcerpc_binding_handle_create(TALLOC_CTX *mem_ctx,
const struct dcerpc_binding_handle_ops *ops,
const struct GUID *object,
const struct ndr_interface_table *table,
void *pstate,
size_t psize,
const char *type,
const char *location);
#define dcerpc_binding_handle_create(mem_ctx, ops, object, table, \
state, type, location) \
_dcerpc_binding_handle_create(mem_ctx, ops, object, table, \
state, sizeof(type), #type, location)
void *_dcerpc_binding_handle_data(struct dcerpc_binding_handle *h);
#define dcerpc_binding_handle_data(_h, _type) \
talloc_get_type_abort(_dcerpc_binding_handle_data(_h), _type)
_DEPRECATED_ void dcerpc_binding_handle_set_sync_ev(struct dcerpc_binding_handle *h,
struct tevent_context *ev);
bool dcerpc_binding_handle_is_connected(struct dcerpc_binding_handle *h);
uint32_t dcerpc_binding_handle_set_timeout(struct dcerpc_binding_handle *h,
uint32_t timeout);
struct tevent_req *dcerpc_binding_handle_raw_call_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct dcerpc_binding_handle *h,
const struct GUID *object,
uint32_t opnum,
uint32_t in_flags,
const uint8_t *in_data,
size_t in_length);
NTSTATUS dcerpc_binding_handle_raw_call_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
uint8_t **out_data,
size_t *out_length,
uint32_t *out_flags);
NTSTATUS dcerpc_binding_handle_raw_call(struct dcerpc_binding_handle *h,
const struct GUID *object,
uint32_t opnum,
uint32_t in_flags,
const uint8_t *in_data,
size_t in_length,
TALLOC_CTX *mem_ctx,
uint8_t **out_data,
size_t *out_length,
uint32_t *out_flags);
struct tevent_req *dcerpc_binding_handle_disconnect_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct dcerpc_binding_handle *h);
NTSTATUS dcerpc_binding_handle_disconnect_recv(struct tevent_req *req);
struct tevent_req *dcerpc_binding_handle_call_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct dcerpc_binding_handle *h,
const struct GUID *object,
const struct ndr_interface_table *table,
uint32_t opnum,
TALLOC_CTX *r_mem,
void *r_ptr);
NTSTATUS dcerpc_binding_handle_call_recv(struct tevent_req *req);
NTSTATUS dcerpc_binding_handle_call(struct dcerpc_binding_handle *h,
const struct GUID *object,
const struct ndr_interface_table *table,
uint32_t opnum,
TALLOC_CTX *r_mem,
void *r_ptr);
#endif /* __DEFAULT_LIBRPC_RPCCOMMON_H__ */
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