2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2010-2011
5 Copyright (C) Andrew Tridgell 2010-2011
6 Copyright (C) Simo Sorce 2010
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #ifndef __DEFAULT_LIBRPC_RPCCOMMON_H__
23 #define __DEFAULT_LIBRPC_RPCCOMMON_H__
25 #include "gen_ndr/dcerpc.h"
26 #include "lib/util/attr.h"
28 struct dcerpc_binding_handle;
30 struct ndr_interface_table;
31 struct ndr_interface_call;
37 struct tevent_context;
38 struct tstream_context;
40 enum dcerpc_transport_t {
41 NCA_UNKNOWN, NCACN_NP, NCACN_IP_TCP, NCACN_IP_UDP, NCACN_VNS_IPC,
42 NCACN_VNS_SPP, NCACN_AT_DSP, NCADG_AT_DDP, NCALRPC, NCACN_UNIX_STREAM,
43 NCADG_UNIX_DGRAM, NCACN_HTTP, NCADG_IPX, NCACN_SPX, NCACN_INTERNAL };
45 /** this describes a binding to a particular transport/pipe */
46 struct dcerpc_binding;
48 /* dcerpc pipe flags */
49 #define DCERPC_DEBUG_PRINT_IN (1<<0)
50 #define DCERPC_DEBUG_PRINT_OUT (1<<1)
51 #define DCERPC_DEBUG_PRINT_BOTH (DCERPC_DEBUG_PRINT_IN | DCERPC_DEBUG_PRINT_OUT)
53 #define DCERPC_DEBUG_VALIDATE_IN (1<<2)
54 #define DCERPC_DEBUG_VALIDATE_OUT (1<<3)
55 #define DCERPC_DEBUG_VALIDATE_BOTH (DCERPC_DEBUG_VALIDATE_IN | DCERPC_DEBUG_VALIDATE_OUT)
57 #define DCERPC_CONNECT (1<<4)
58 #define DCERPC_SIGN (1<<5)
59 #define DCERPC_SEAL (1<<6)
61 #define DCERPC_PUSH_BIGENDIAN (1<<7)
62 #define DCERPC_PULL_BIGENDIAN (1<<8)
64 #define DCERPC_SCHANNEL (1<<9)
66 #define DCERPC_ANON_FALLBACK (1<<10)
68 /* use a 128 bit session key */
69 #define DCERPC_SCHANNEL_128 (1<<12)
71 /* check incoming pad bytes */
72 #define DCERPC_DEBUG_PAD_CHECK (1<<13)
74 /* set LIBNDR_FLAG_REF_ALLOC flag when decoding NDR */
75 #define DCERPC_NDR_REF_ALLOC (1<<14)
77 #define DCERPC_AUTH_OPTIONS (DCERPC_SEAL|DCERPC_SIGN|DCERPC_SCHANNEL|DCERPC_AUTH_SPNEGO|DCERPC_AUTH_KRB5|DCERPC_AUTH_NTLM)
79 /* select spnego auth */
80 #define DCERPC_AUTH_SPNEGO (1<<15)
82 /* select krb5 auth */
83 #define DCERPC_AUTH_KRB5 (1<<16)
85 #define DCERPC_SMB2 (1<<17)
87 /* select NTLM auth */
88 #define DCERPC_AUTH_NTLM (1<<18)
90 /* this triggers the DCERPC_PFC_FLAG_CONC_MPX flag in the bind request */
91 #define DCERPC_CONCURRENT_MULTIPLEX (1<<19)
93 /* this indicates DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN flag was negotiated */
94 #define DCERPC_HEADER_SIGNING (1<<20)
96 /* use NDR64 transport */
97 #define DCERPC_NDR64 (1<<21)
99 /* handle upgrades or downgrades automatically */
100 #define DCERPC_SCHANNEL_AUTO (1<<23)
102 /* use aes schannel with hmac-sh256 session key */
103 #define DCERPC_SCHANNEL_AES (1<<24)
105 /* this triggers the DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN flag in the bind request */
106 #define DCERPC_PROPOSE_HEADER_SIGNING (1<<25)
108 /* The following definitions come from ../librpc/rpc/dcerpc_error.c */
110 const char *dcerpc_errstr(TALLOC_CTX *mem_ctx, uint32_t fault_code);
111 NTSTATUS dcerpc_fault_to_nt_status(uint32_t fault_code);
112 uint32_t dcerpc_fault_from_nt_status(NTSTATUS nt_status);
114 /* The following definitions come from ../librpc/rpc/binding.c */
116 const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor);
117 char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor);
118 enum dcerpc_transport_t dcerpc_transport_by_endpoint_protocol(int prot);
119 struct dcerpc_binding *dcerpc_binding_dup(TALLOC_CTX *mem_ctx,
120 const struct dcerpc_binding *b);
121 NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx,
122 const struct dcerpc_binding *binding,
123 struct epm_tower *tower);
124 NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx,
125 struct epm_tower *tower,
126 struct dcerpc_binding **b_out);
127 NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding **b_out);
128 char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b);
129 struct GUID dcerpc_binding_get_object(const struct dcerpc_binding *b);
130 NTSTATUS dcerpc_binding_set_object(struct dcerpc_binding *b,
132 enum dcerpc_transport_t dcerpc_binding_get_transport(const struct dcerpc_binding *b);
133 NTSTATUS dcerpc_binding_set_transport(struct dcerpc_binding *b,
134 enum dcerpc_transport_t transport);
135 void dcerpc_binding_get_auth_info(const struct dcerpc_binding *b,
136 enum dcerpc_AuthType *_auth_type,
137 enum dcerpc_AuthLevel *_auth_level);
138 uint32_t dcerpc_binding_get_assoc_group_id(const struct dcerpc_binding *b);
139 NTSTATUS dcerpc_binding_set_assoc_group_id(struct dcerpc_binding *b,
140 uint32_t assoc_group_id);
141 struct ndr_syntax_id dcerpc_binding_get_abstract_syntax(const struct dcerpc_binding *b);
142 NTSTATUS dcerpc_binding_set_abstract_syntax(struct dcerpc_binding *b,
143 const struct ndr_syntax_id *syntax);
144 const char *dcerpc_binding_get_string_option(const struct dcerpc_binding *b,
146 char *dcerpc_binding_copy_string_option(TALLOC_CTX *mem_ctx,
147 const struct dcerpc_binding *b,
149 NTSTATUS dcerpc_binding_set_string_option(struct dcerpc_binding *b,
152 uint32_t dcerpc_binding_get_flags(const struct dcerpc_binding *b);
153 NTSTATUS dcerpc_binding_set_flags(struct dcerpc_binding *b,
156 NTSTATUS dcerpc_floor_get_lhs_data(const struct epm_floor *epm_floor, struct ndr_syntax_id *syntax);
157 const char *derpc_transport_string_by_transport(enum dcerpc_transport_t t);
158 enum dcerpc_transport_t dcerpc_transport_by_name(const char *name);
159 enum dcerpc_transport_t dcerpc_transport_by_tower(const struct epm_tower *tower);
161 /* The following definitions come from ../librpc/rpc/dcerpc_util.c */
163 void dcerpc_set_frag_length(DATA_BLOB *blob, uint16_t v);
164 uint16_t dcerpc_get_frag_length(const DATA_BLOB *blob);
165 void dcerpc_set_auth_length(DATA_BLOB *blob, uint16_t v);
166 uint8_t dcerpc_get_endian_flag(DATA_BLOB *blob);
167 const char *dcerpc_default_transport_endpoint(TALLOC_CTX *mem_ctx,
168 enum dcerpc_transport_t transport,
169 const struct ndr_interface_table *table);
172 * @brief Pull a dcerpc_auth structure, taking account of any auth
173 * padding in the blob. For request/response packets we pass
174 * the whole data blob, so auth_data_only must be set to false
175 * as the blob contains data+pad+auth and no just pad+auth.
177 * @param pkt - The ncacn_packet strcuture
178 * @param mem_ctx - The mem_ctx used to allocate dcerpc_auth elements
179 * @param pkt_trailer - The packet trailer data, usually the trailing
180 * auth_info blob, but in the request/response case
181 * this is the stub_and_verifier blob.
182 * @param auth - A preallocated dcerpc_auth *empty* structure
183 * @param auth_length - The length of the auth trail, sum of auth header
184 * lenght and pkt->auth_length
185 * @param auth_data_only - Whether the pkt_trailer includes only the auth_blob
186 * (+ padding) or also other data.
188 * @return - A NTSTATUS error code.
190 NTSTATUS dcerpc_pull_auth_trailer(const struct ncacn_packet *pkt,
192 const DATA_BLOB *pkt_trailer,
193 struct dcerpc_auth *auth,
194 uint32_t *auth_length,
195 bool auth_data_only);
196 NTSTATUS dcerpc_verify_ncacn_packet_header(const struct ncacn_packet *pkt,
197 enum dcerpc_pkt_type ptype,
198 size_t max_auth_info,
199 uint8_t required_flags,
200 uint8_t optional_flags);
201 struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
202 struct tevent_context *ev,
203 struct tstream_context *stream);
204 NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
206 struct ncacn_packet **pkt,
209 /* The following definitions come from ../librpc/rpc/binding_handle.c */
211 struct dcerpc_binding_handle_ops {
214 bool (*is_connected)(struct dcerpc_binding_handle *h);
215 uint32_t (*set_timeout)(struct dcerpc_binding_handle *h,
218 void (*auth_info)(struct dcerpc_binding_handle *h,
219 enum dcerpc_AuthType *auth_type,
220 enum dcerpc_AuthLevel *auth_level);
222 struct tevent_req *(*raw_call_send)(TALLOC_CTX *mem_ctx,
223 struct tevent_context *ev,
224 struct dcerpc_binding_handle *h,
225 const struct GUID *object,
228 const uint8_t *in_data,
230 NTSTATUS (*raw_call_recv)(struct tevent_req *req,
234 uint32_t *out_flags);
236 struct tevent_req *(*disconnect_send)(TALLOC_CTX *mem_ctx,
237 struct tevent_context *ev,
238 struct dcerpc_binding_handle *h);
239 NTSTATUS (*disconnect_recv)(struct tevent_req *req);
241 /* TODO: remove the following functions */
242 bool (*push_bigendian)(struct dcerpc_binding_handle *h);
243 bool (*ref_alloc)(struct dcerpc_binding_handle *h);
244 bool (*use_ndr64)(struct dcerpc_binding_handle *h);
245 void (*do_ndr_print)(struct dcerpc_binding_handle *h,
247 const void *struct_ptr,
248 const struct ndr_interface_call *call);
249 void (*ndr_push_failed)(struct dcerpc_binding_handle *h,
251 const void *struct_ptr,
252 const struct ndr_interface_call *call);
253 void (*ndr_pull_failed)(struct dcerpc_binding_handle *h,
255 const DATA_BLOB *blob,
256 const struct ndr_interface_call *call);
257 NTSTATUS (*ndr_validate_in)(struct dcerpc_binding_handle *h,
259 const DATA_BLOB *blob,
260 const struct ndr_interface_call *call);
261 NTSTATUS (*ndr_validate_out)(struct dcerpc_binding_handle *h,
262 struct ndr_pull *pull_in,
263 const void *struct_ptr,
264 const struct ndr_interface_call *call);
267 struct dcerpc_binding_handle *_dcerpc_binding_handle_create(TALLOC_CTX *mem_ctx,
268 const struct dcerpc_binding_handle_ops *ops,
269 const struct GUID *object,
270 const struct ndr_interface_table *table,
274 const char *location);
275 #define dcerpc_binding_handle_create(mem_ctx, ops, object, table, \
276 state, type, location) \
277 _dcerpc_binding_handle_create(mem_ctx, ops, object, table, \
278 state, sizeof(type), #type, location)
280 void *_dcerpc_binding_handle_data(struct dcerpc_binding_handle *h);
281 #define dcerpc_binding_handle_data(_h, _type) \
282 talloc_get_type_abort(_dcerpc_binding_handle_data(_h), _type)
284 _DEPRECATED_ void dcerpc_binding_handle_set_sync_ev(struct dcerpc_binding_handle *h,
285 struct tevent_context *ev);
287 bool dcerpc_binding_handle_is_connected(struct dcerpc_binding_handle *h);
289 uint32_t dcerpc_binding_handle_set_timeout(struct dcerpc_binding_handle *h,
292 void dcerpc_binding_handle_auth_info(struct dcerpc_binding_handle *h,
293 enum dcerpc_AuthType *auth_type,
294 enum dcerpc_AuthLevel *auth_level);
296 struct tevent_req *dcerpc_binding_handle_raw_call_send(TALLOC_CTX *mem_ctx,
297 struct tevent_context *ev,
298 struct dcerpc_binding_handle *h,
299 const struct GUID *object,
302 const uint8_t *in_data,
304 NTSTATUS dcerpc_binding_handle_raw_call_recv(struct tevent_req *req,
308 uint32_t *out_flags);
309 NTSTATUS dcerpc_binding_handle_raw_call(struct dcerpc_binding_handle *h,
310 const struct GUID *object,
313 const uint8_t *in_data,
318 uint32_t *out_flags);
320 struct tevent_req *dcerpc_binding_handle_disconnect_send(TALLOC_CTX *mem_ctx,
321 struct tevent_context *ev,
322 struct dcerpc_binding_handle *h);
323 NTSTATUS dcerpc_binding_handle_disconnect_recv(struct tevent_req *req);
325 struct tevent_req *dcerpc_binding_handle_call_send(TALLOC_CTX *mem_ctx,
326 struct tevent_context *ev,
327 struct dcerpc_binding_handle *h,
328 const struct GUID *object,
329 const struct ndr_interface_table *table,
333 NTSTATUS dcerpc_binding_handle_call_recv(struct tevent_req *req);
334 NTSTATUS dcerpc_binding_handle_call(struct dcerpc_binding_handle *h,
335 const struct GUID *object,
336 const struct ndr_interface_table *table,
342 * Extract header information from a ncacn_packet
343 * as a dcerpc_sec_vt_header2 as used by the security verification trailer.
345 * @param[in] pkt a packet
347 * @return a dcerpc_sec_vt_header2
349 struct dcerpc_sec_vt_header2 dcerpc_sec_vt_header2_from_ncacn_packet(const struct ncacn_packet *pkt);
353 * Test if two dcerpc_sec_vt_header2 structures are equal
354 * without consideration of reserved fields.
356 * @param v1 a pointer to a dcerpc_sec_vt_header2 structure
357 * @param v2 a pointer to a dcerpc_sec_vt_header2 structure
359 * @retval true if *v1 equals *v2
361 bool dcerpc_sec_vt_header2_equal(const struct dcerpc_sec_vt_header2 *v1,
362 const struct dcerpc_sec_vt_header2 *v2);
365 * Check for consistency of the security verification trailer with the PDU header.
366 * See <a href="http://msdn.microsoft.com/en-us/library/cc243559.aspx">MS-RPCE 2.2.2.13</a>.
367 * A check with an empty trailer succeeds.
369 * @param[in] vt a pointer to the security verification trailer.
370 * @param[in] bitmask1 which flags were negotiated on the connection.
371 * @param[in] pcontext the syntaxes negotiatied for the presentation context.
372 * @param[in] header2 some fields from the PDU header.
374 * @retval true on success.
376 bool dcerpc_sec_verification_trailer_check(
377 const struct dcerpc_sec_verification_trailer *vt,
378 const uint32_t *bitmask1,
379 const struct dcerpc_sec_vt_pcontext *pcontext,
380 const struct dcerpc_sec_vt_header2 *header2);
383 * @brief check and optionally extract the Bind Time Features from
384 * the given ndr_syntax_id.
386 * <a href="http://msdn.microsoft.com/en-us/library/cc243715.aspx">MS-RPCE 3.3.1.5.3 Bind Time Feature Negotiation</a>.
388 * @param[in] s the syntax that should be checked.
390 * @param[out] features This is optional, it will be filled with the extracted
391 * features the on success, otherwise it's filled with 0.
393 * @return true if the syntax matches the 6CB71C2C-9812-4540 prefix with version 1, false otherwise.
395 * @see dcerpc_construct_bind_time_features
397 bool dcerpc_extract_bind_time_features(struct ndr_syntax_id syntax, uint64_t *features);
400 * @brief Construct a ndr_syntax_id used for Bind Time Features Negotiation.
402 * <a href="http://msdn.microsoft.com/en-us/library/cc243715.aspx">MS-RPCE 3.3.1.5.3 Bind Time Feature Negotiation</a>.
404 * @param[in] features The supported features.
406 * @return The ndr_syntax_id with the given features.
408 * @see dcerpc_extract_bind_time_features
410 struct ndr_syntax_id dcerpc_construct_bind_time_features(uint64_t features);
412 #define DCERPC_AUTH_PAD_LENGTH(stub_length) (\
413 (((stub_length) % DCERPC_AUTH_PAD_ALIGNMENT) > 0)?\
414 (DCERPC_AUTH_PAD_ALIGNMENT - (stub_length) % DCERPC_AUTH_PAD_ALIGNMENT):\
417 #endif /* __DEFAULT_LIBRPC_RPCCOMMON_H__ */