#ifndef __DEFAULT_LIBRPC_RPCCOMMON_H__
#define __DEFAULT_LIBRPC_RPCCOMMON_H__
+#include "gen_ndr/dcerpc.h"
+#include "lib/util/attr.h"
+
struct dcerpc_binding_handle;
+struct dcerpc_pipe_handle;
+struct dcerpc_pipe_handle_connection;
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;
+struct gensec_security;
+
+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;
+
+/* 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 indicates DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN flag was negotiated */
+#define DCERPC_HEADER_SIGNING (1<<20)
+
+/* use NDR64 transport */
+#define DCERPC_NDR64 (1<<21)
+
+/* handle upgrades or downgrades automatically */
+#define DCERPC_SCHANNEL_AUTO (1<<23)
+
+/* use aes schannel with hmac-sh256 session key */
+#define DCERPC_SCHANNEL_AES (1<<24)
+
+/* this triggers the DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN flag in the bind request */
+#define DCERPC_PROPOSE_HEADER_SIGNING (1<<25)
+
+#define DCERPC_PACKET (1<<26)
+
+#define DCERPC_SMB1 (1<<27)
/* 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);
+uint32_t dcerpc_fault_from_nt_status(NTSTATUS nt_status);
/* 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);
+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);
+struct dcerpc_binding *dcerpc_binding_dup(TALLOC_CTX *mem_ctx,
+ const struct dcerpc_binding *b);
+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);
+struct GUID dcerpc_binding_get_object(const struct dcerpc_binding *b);
+NTSTATUS dcerpc_binding_set_object(struct dcerpc_binding *b,
+ struct GUID object);
+enum dcerpc_transport_t dcerpc_binding_get_transport(const struct dcerpc_binding *b);
+NTSTATUS dcerpc_binding_set_transport(struct dcerpc_binding *b,
+ enum dcerpc_transport_t transport);
+void dcerpc_binding_get_auth_info(const struct dcerpc_binding *b,
+ enum dcerpc_AuthType *_auth_type,
+ enum dcerpc_AuthLevel *_auth_level);
+uint32_t dcerpc_binding_get_assoc_group_id(const struct dcerpc_binding *b);
+NTSTATUS dcerpc_binding_set_assoc_group_id(struct dcerpc_binding *b,
+ uint32_t assoc_group_id);
+struct ndr_syntax_id dcerpc_binding_get_abstract_syntax(const struct dcerpc_binding *b);
+NTSTATUS dcerpc_binding_set_abstract_syntax(struct dcerpc_binding *b,
+ const struct ndr_syntax_id *syntax);
+const char *dcerpc_binding_get_string_option(const struct dcerpc_binding *b,
+ const char *name);
+char *dcerpc_binding_copy_string_option(TALLOC_CTX *mem_ctx,
+ const struct dcerpc_binding *b,
+ const char *name);
+NTSTATUS dcerpc_binding_set_string_option(struct dcerpc_binding *b,
+ const char *name,
+ const char *value);
+void *_dcerpc_binding_get_pointer_option(const struct dcerpc_binding *b,
+ const char *name,
+ const char *type);
+#define dcerpc_binding_get_pointer_option(b, name, type) \
+ talloc_get_type(_dcerpc_binding_get_pointer_option(b, name, #type), type)
+NTSTATUS _dcerpc_binding_set_pointer_option(struct dcerpc_binding *b,
+ const char *name,
+ const char *type,
+ const void *vp);
+#define dcerpc_binding_set_pointer_option(b, name, type, vp) \
+ _dcerpc_binding_set_pointer_option(b, name, #type, vp)
+uint32_t dcerpc_binding_get_flags(const struct dcerpc_binding *b);
+NTSTATUS dcerpc_binding_set_flags(struct dcerpc_binding *b,
+ uint32_t additional,
+ uint32_t clear);
+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_name(const char *name);
+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);
+uint16_t dcerpc_get_auth_length(const DATA_BLOB *blob);
uint8_t dcerpc_get_endian_flag(DATA_BLOB *blob);
+uint8_t dcerpc_get_auth_type(const DATA_BLOB *blob);
+uint8_t dcerpc_get_auth_level(const DATA_BLOB *blob);
+uint32_t dcerpc_get_auth_context_id(const DATA_BLOB *blob);
+const char *dcerpc_default_transport_endpoint(TALLOC_CTX *mem_ctx,
+ enum dcerpc_transport_t transport,
+ const struct ndr_interface_table *table);
+
+NTSTATUS dcerpc_pull_ncacn_packet(TALLOC_CTX *mem_ctx,
+ const DATA_BLOB *blob,
+ struct ncacn_packet *r);
/**
* @brief Pull a dcerpc_auth structure, taking account of any auth
*
* @return - A NTSTATUS error code.
*/
-NTSTATUS dcerpc_pull_auth_trailer(struct ncacn_packet *pkt,
+NTSTATUS dcerpc_pull_auth_trailer(const struct ncacn_packet *pkt,
TALLOC_CTX *mem_ctx,
- DATA_BLOB *pkt_trailer,
+ const DATA_BLOB *pkt_trailer,
struct dcerpc_auth *auth,
uint32_t *auth_length,
bool auth_data_only);
+NTSTATUS dcerpc_verify_ncacn_packet_header(const struct ncacn_packet *pkt,
+ enum dcerpc_pkt_type ptype,
+ size_t max_auth_info,
+ uint8_t required_flags,
+ uint8_t optional_flags);
+NTSTATUS dcerpc_ncacn_pull_pkt_auth(const struct dcerpc_auth *auth_state,
+ struct gensec_security *gensec,
+ TALLOC_CTX *mem_ctx,
+ enum dcerpc_pkt_type ptype,
+ uint8_t required_flags,
+ uint8_t optional_flags,
+ uint8_t payload_offset,
+ DATA_BLOB *payload_and_verifier,
+ DATA_BLOB *raw_packet,
+ const struct ncacn_packet *pkt);
+NTSTATUS dcerpc_ncacn_push_pkt_auth(const struct dcerpc_auth *auth_state,
+ struct gensec_security *gensec,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *raw_packet,
+ size_t sig_size,
+ uint8_t payload_offset,
+ const DATA_BLOB *payload,
+ const struct ncacn_packet *pkt);
struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct tstream_context *stream);
uint32_t (*set_timeout)(struct dcerpc_binding_handle *h,
uint32_t timeout);
+ void (*auth_info)(struct dcerpc_binding_handle *h,
+ enum dcerpc_AuthType *auth_type,
+ enum dcerpc_AuthLevel *auth_level);
+
struct tevent_req *(*raw_call_send)(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct dcerpc_binding_handle *h,
uint8_t **out_data,
size_t *out_length,
uint32_t *out_flags);
+ struct tevent_req *(*raw_call_in_send)(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct tevent_req *raw_call_req,
+ uint32_t in_flags,
+ const uint8_t *in_data,
+ size_t in_length);
+ NTSTATUS (*raw_call_in_recv)(struct tevent_req *req);
struct tevent_req *(*disconnect_send)(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
uint32_t dcerpc_binding_handle_set_timeout(struct dcerpc_binding_handle *h,
uint32_t timeout);
+void dcerpc_binding_handle_auth_info(struct dcerpc_binding_handle *h,
+ enum dcerpc_AuthType *auth_type,
+ enum dcerpc_AuthLevel *auth_level);
+
struct tevent_req *dcerpc_binding_handle_raw_call_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct dcerpc_binding_handle *h,
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_raw_call_in_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct tevent_req *raw_call_req,
+ uint32_t in_flags,
+ const uint8_t *in_data,
+ size_t in_length);
+NTSTATUS dcerpc_binding_handle_raw_call_in_recv(struct tevent_req *req);
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 dcerpc_binding_handle_call_params {
+ TALLOC_CTX *r_mem;
+ void *r_ptr;
+ struct {
+ uint32_t num_pipes;
+ struct dcerpc_pipe_handle_connection **pipes;
+ } in, out;
+};
+
+struct tevent_req *dcerpc_binding_handle_call_params_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,
+ struct dcerpc_binding_handle_call_params *params);
+NTSTATUS dcerpc_binding_handle_call_params_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,
TALLOC_CTX *r_mem,
void *r_ptr);
+/**
+ * Extract header information from a ncacn_packet
+ * as a dcerpc_sec_vt_header2 as used by the security verification trailer.
+ *
+ * @param[in] pkt a packet
+ *
+ * @return a dcerpc_sec_vt_header2
+ */
+struct dcerpc_sec_vt_header2 dcerpc_sec_vt_header2_from_ncacn_packet(const struct ncacn_packet *pkt);
+
+
+/**
+ * Test if two dcerpc_sec_vt_header2 structures are equal
+ * without consideration of reserved fields.
+ *
+ * @param v1 a pointer to a dcerpc_sec_vt_header2 structure
+ * @param v2 a pointer to a dcerpc_sec_vt_header2 structure
+ *
+ * @retval true if *v1 equals *v2
+ */
+bool dcerpc_sec_vt_header2_equal(const struct dcerpc_sec_vt_header2 *v1,
+ const struct dcerpc_sec_vt_header2 *v2);
+
+/**
+ * Check for consistency of the security verification trailer with the PDU header.
+ * See <a href="http://msdn.microsoft.com/en-us/library/cc243559.aspx">MS-RPCE 2.2.2.13</a>.
+ * A check with an empty trailer succeeds.
+ *
+ * @param[in] vt a pointer to the security verification trailer.
+ * @param[in] bitmask1 which flags were negotiated on the connection.
+ * @param[in] pcontext the syntaxes negotiatied for the presentation context.
+ * @param[in] header2 some fields from the PDU header.
+ *
+ * @retval true on success.
+ */
+bool dcerpc_sec_verification_trailer_check(
+ const struct dcerpc_sec_verification_trailer *vt,
+ const uint32_t *bitmask1,
+ const struct dcerpc_sec_vt_pcontext *pcontext,
+ const struct dcerpc_sec_vt_header2 *header2);
+
+/**
+ * @brief check and optionally extract the Bind Time Features from
+ * the given ndr_syntax_id.
+ *
+ * <a href="http://msdn.microsoft.com/en-us/library/cc243715.aspx">MS-RPCE 3.3.1.5.3 Bind Time Feature Negotiation</a>.
+ *
+ * @param[in] s the syntax that should be checked.
+ *
+ * @param[out] features This is optional, it will be filled with the extracted
+ * features the on success, otherwise it's filled with 0.
+ *
+ * @return true if the syntax matches the 6CB71C2C-9812-4540 prefix with version 1, false otherwise.
+ *
+ * @see dcerpc_construct_bind_time_features
+ */
+bool dcerpc_extract_bind_time_features(struct ndr_syntax_id syntax, uint64_t *features);
+
+/**
+ * @brief Construct a ndr_syntax_id used for Bind Time Features Negotiation.
+ *
+ * <a href="http://msdn.microsoft.com/en-us/library/cc243715.aspx">MS-RPCE 3.3.1.5.3 Bind Time Feature Negotiation</a>.
+ *
+ * @param[in] features The supported features.
+ *
+ * @return The ndr_syntax_id with the given features.
+ *
+ * @see dcerpc_extract_bind_time_features
+ */
+struct ndr_syntax_id dcerpc_construct_bind_time_features(uint64_t features);
+
+#define DCERPC_AUTH_PAD_LENGTH(stub_length) (\
+ (((stub_length) % DCERPC_AUTH_PAD_ALIGNMENT) > 0)?\
+ (DCERPC_AUTH_PAD_ALIGNMENT - (stub_length) % DCERPC_AUTH_PAD_ALIGNMENT):\
+ 0)
+
+struct dcerpc_pipe_handle_connection *dcerpc_pipe_handle_connection_create(
+ TALLOC_CTX *mem_ctx,
+ const char *chunk_struct_name,
+ size_t chunk_struct_size);
+bool _dcerpc_pipe_handle_connection_connect(
+ struct dcerpc_pipe_handle_connection *pc,
+ const char *chunk_struct_name,
+ size_t chunk_struct_size,
+ struct dcerpc_pipe_handle *p,
+ bool push);
+#define dcerpc_pipe_handle_connection_push_connect(pc, csn, css, p) \
+ _dcerpc_pipe_handle_connection_connect(pc, csn, css, p, true)
+#define dcerpc_pipe_handle_connection_pull_connect(pc, csn, css, p) \
+ _dcerpc_pipe_handle_connection_connect(pc, csn, css, p, false)
+void dcerpc_pipe_handle_connection_disconnect(
+ struct dcerpc_pipe_handle_connection *pc);
+
+struct dcerpc_pipe_handle_ops {
+ const char *name;
+
+ struct tevent_req *(*chunk_push_send)(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct dcerpc_pipe_handle *p,
+ const void *chunk_ptr);
+ NTSTATUS (*chunk_push_recv)(struct tevent_req *req);
+
+ struct tevent_req *(*chunk_pull_send)(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct dcerpc_pipe_handle *p,
+ void *chunk_mem,
+ void *chunk_ptr);
+ NTSTATUS (*chunk_pull_recv)(struct tevent_req *req);
+};
+
+struct dcerpc_pipe_handle *_dcerpc_pipe_handle_create(
+ TALLOC_CTX *mem_ctx,
+ const struct dcerpc_pipe_handle_ops *ops,
+ void *pstate,
+ size_t psize,
+ const char *type,
+ const char *location);
+#define dcerpc_pipe_handle_create(mem_ctx, ops, \
+ state, type) \
+ _dcerpc_pipe_handle_create(mem_ctx, ops, \
+ state, sizeof(type), #type, __location__)
+
+void *_dcerpc_pipe_handle_data(struct dcerpc_pipe_handle *p);
+#define dcerpc_pipe_handle_data(_p, _type) \
+ talloc_get_type_abort(_dcerpc_pipe_handle_data(_p), _type)
+
+struct tevent_req *dcerpc_pipe_handle_push_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct dcerpc_pipe_handle_connection *pc,
+ const void *chunk_ptr);
+NTSTATUS dcerpc_pipe_handle_push_recv(struct tevent_req *req);
+
+struct tevent_req *dcerpc_pipe_handle_pull_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct dcerpc_pipe_handle_connection *pc,
+ void *chunk_mem,
+ void *chunk_ptr);
+NTSTATUS dcerpc_pipe_handle_pull_recv(struct tevent_req *req);
+
#endif /* __DEFAULT_LIBRPC_RPCCOMMON_H__ */
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