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-rw-r--r--librpc/rpc/rpc_common.h410
1 files changed, 410 insertions, 0 deletions
diff --git a/librpc/rpc/rpc_common.h b/librpc/rpc/rpc_common.h
new file mode 100644
index 0000000..55a35f3
--- /dev/null
+++ b/librpc/rpc/rpc_common.h
@@ -0,0 +1,410 @@
+/*
+ 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__
+
+#include "lib/util/data_blob.h"
+
+#include "gen_ndr/dcerpc.h"
+#include "lib/util/attr.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;
+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);
+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);
+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/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);
+
+ 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,
+ 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);
+
+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,
+ 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);
+
+/**
+ * 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)
+
+NTSTATUS dcerpc_generic_session_key(DATA_BLOB *session_key);
+
+NTSTATUS dcerpc_ncacn_push_auth(DATA_BLOB *blob,
+ TALLOC_CTX *mem_ctx,
+ struct ncacn_packet *pkt,
+ struct dcerpc_auth *auth_info);
+
+void dcerpc_log_packet(const char *packet_log_dir,
+ const char *interface_name,
+ uint32_t opnum, uint32_t flags,
+ const DATA_BLOB *pkt,
+ const char *why);
+
+#ifdef DEVELOPER
+void dcerpc_save_ndr_fuzz_seed(TALLOC_CTX *mem_ctx,
+ DATA_BLOB raw_blob,
+ const char *dump_dir,
+ const char *iface_name,
+ int flags,
+ int opnum,
+ bool ndr64);
+#else
+static inline void dcerpc_save_ndr_fuzz_seed(TALLOC_CTX *mem_ctx,
+ DATA_BLOB raw_blob,
+ const char *dump_dir,
+ const char *iface_name,
+ int flags,
+ int opnum,
+ bool ndr64)
+{
+ return;
+}
+#endif
+
+#endif /* __DEFAULT_LIBRPC_RPCCOMMON_H__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 00:03:44 +0000