source3/librpc/rpc/dcerpc.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    DCERPC client side interface structures
   5
   6    Copyright (C) 2008 Jelmer Vernooij
   7
   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.
  12
  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.
  17
  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/>.
  20 */
  21
  22 /* This is a public header file that is installed as part of Samba.
  23  * If you remove any functions or change their signature, update
  24  * the so version number. */
  25
  26 #ifndef __DCERPC_H__
  27 #define __DCERPC_H__
  28
  29 #define SMB_RPC_INTERFACE_VERSION 1
  30
  31 enum dcerpc_transport_t {
  32         NCA_UNKNOWN, NCACN_NP, NCACN_IP_TCP, NCACN_IP_UDP, NCACN_VNS_IPC,
  33         NCACN_VNS_SPP, NCACN_AT_DSP, NCADG_AT_DDP, NCALRPC, NCACN_UNIX_STREAM,
  34         NCADG_UNIX_DGRAM, NCACN_HTTP, NCADG_IPX, NCACN_SPX, NCACN_INTERNAL };
  35
  36 /** this describes a binding to a particular transport/pipe */
  37 struct dcerpc_binding {
  38         enum dcerpc_transport_t transport;
  39         struct ndr_syntax_id object;
  40         const char *host;
  41         const char *target_hostname;
  42         const char *endpoint;
  43         const char **options;
  44         const char *localaddress;
  45         uint32_t flags;
  46         uint32_t assoc_group_id;
  47 };
  48
  49
  50 /* dcerpc pipe flags */
  51 #define DCERPC_DEBUG_PRINT_IN          (1<<0)
  52 #define DCERPC_DEBUG_PRINT_OUT         (1<<1)
  53 #define DCERPC_DEBUG_PRINT_BOTH (DCERPC_DEBUG_PRINT_IN | DCERPC_DEBUG_PRINT_OUT)
  54
  55 #define DCERPC_DEBUG_VALIDATE_IN       (1<<2)
  56 #define DCERPC_DEBUG_VALIDATE_OUT      (1<<3)
  57 #define DCERPC_DEBUG_VALIDATE_BOTH (DCERPC_DEBUG_VALIDATE_IN | DCERPC_DEBUG_VALIDATE_OUT)
  58
  59 #define DCERPC_CONNECT                 (1<<4)
  60 #define DCERPC_SIGN                    (1<<5)
  61 #define DCERPC_SEAL                    (1<<6)
  62
  63 #define DCERPC_PUSH_BIGENDIAN          (1<<7)
  64 #define DCERPC_PULL_BIGENDIAN          (1<<8)
  65
  66 #define DCERPC_SCHANNEL                (1<<9)
  67
  68 /* use a 128 bit session key */
  69 #define DCERPC_SCHANNEL_128            (1<<12)
  70
  71 /* check incoming pad bytes */
  72 #define DCERPC_DEBUG_PAD_CHECK         (1<<13)
  73
  74 /* set LIBNDR_FLAG_REF_ALLOC flag when decoding NDR */
  75 #define DCERPC_NDR_REF_ALLOC           (1<<14)
  76
  77 #define DCERPC_AUTH_OPTIONS    (DCERPC_SEAL|DCERPC_SIGN|DCERPC_SCHANNEL|DCERPC_AUTH_SPNEGO|DCERPC_AUTH_KRB5|DCERPC_AUTH_NTLM)
  78
  79 /* select spnego auth */
  80 #define DCERPC_AUTH_SPNEGO             (1<<15)
  81
  82 /* select krb5 auth */
  83 #define DCERPC_AUTH_KRB5               (1<<16)
  84
  85 #define DCERPC_SMB2                    (1<<17)
  86
  87 /* select NTLM auth */
  88 #define DCERPC_AUTH_NTLM               (1<<18)
  89
  90 /* this triggers the DCERPC_PFC_FLAG_CONC_MPX flag in the bind request */
  91 #define DCERPC_CONCURRENT_MULTIPLEX     (1<<19)
  92
  93 /* this triggers the DCERPC_PFC_FLAG_SUPPORT_HEADER_SIGN flag in the bind request */
  94 #define DCERPC_HEADER_SIGNING          (1<<20)
  95
  96 /* use NDR64 transport */
  97 #define DCERPC_NDR64                   (1<<21)
  98
  99 /* specify binding interface */
 100 #define DCERPC_LOCALADDRESS            (1<<22)
 101
 102 /* The following definitions come from librpc/rpc/binding.c  */
 103
 104 const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor);
 105 _PUBLIC_ char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b);
 106 _PUBLIC_ NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding **b_out);
 107 _PUBLIC_ NTSTATUS dcerpc_floor_get_lhs_data(const struct epm_floor *epm_floor,
 108                                             struct ndr_syntax_id *syntax);
 109 const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *epm_floor);
 110 enum dcerpc_transport_t dcerpc_transport_by_endpoint_protocol(int prot);
 111 _PUBLIC_ enum dcerpc_transport_t dcerpc_transport_by_tower(const struct epm_tower *tower);
 112 _PUBLIC_ const char *derpc_transport_string_by_transport(enum dcerpc_transport_t t);
 113 _PUBLIC_ NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx,
 114                                    struct epm_tower *tower,
 115                                    struct dcerpc_binding **b_out);
 116 _PUBLIC_ NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx,
 117                                              const struct dcerpc_binding *binding,
 118                                              struct epm_tower *tower);
 119
 120 struct NL_AUTH_MESSAGE;
 121
 122 /* The following definitions come from librpc/rpc/dcerpc_helpers.c  */
 123 NTSTATUS dcerpc_push_ncacn_packet(TALLOC_CTX *mem_ctx,
 124                                   enum dcerpc_pkt_type ptype,
 125                                   uint8_t pfc_flags,
 126                                   uint16_t auth_length,
 127                                   uint32_t call_id,
 128                                   union dcerpc_payload *u,
 129                                   DATA_BLOB *blob);
 130 NTSTATUS dcerpc_pull_ncacn_packet(TALLOC_CTX *mem_ctx,
 131                                   const DATA_BLOB *blob,
 132                                   struct ncacn_packet *r,
 133                                   bool bigendian);
 134 NTSTATUS dcerpc_push_schannel_bind(TALLOC_CTX *mem_ctx,
 135                                    struct NL_AUTH_MESSAGE *r,
 136                                    DATA_BLOB *blob);
 137 NTSTATUS dcerpc_push_dcerpc_auth(TALLOC_CTX *mem_ctx,
 138                                  enum dcerpc_AuthType auth_type,
 139                                  enum dcerpc_AuthLevel auth_level,
 140                                  uint8_t auth_pad_length,
 141                                  uint32_t auth_context_id,
 142                                  const DATA_BLOB *credentials,
 143                                  DATA_BLOB *blob);
 144 NTSTATUS dcerpc_pull_dcerpc_auth(TALLOC_CTX *mem_ctx,
 145                                  const DATA_BLOB *blob,
 146                                  struct dcerpc_auth *r,
 147                                  bool bigendian);
 148 NTSTATUS dcerpc_guess_sizes(struct pipe_auth_data *auth,
 149                             size_t header_len, size_t data_left,
 150                             size_t max_xmit_frag, size_t pad_alignment,
 151                             size_t *data_to_send, size_t *frag_len,
 152                             size_t *auth_len, size_t *pad_len);
 153 NTSTATUS dcerpc_add_auth_footer(struct pipe_auth_data *auth,
 154                                 size_t pad_len, DATA_BLOB *rpc_out);
 155 NTSTATUS dcerpc_check_auth(struct pipe_auth_data *auth,
 156                            struct ncacn_packet *pkt,
 157                            DATA_BLOB *pkt_trailer,
 158                            size_t header_size,
 159                            DATA_BLOB *raw_pkt,
 160                            size_t *pad_len);
 161
 162 struct dcerpc_binding_handle;
 163 struct GUID;
 164 struct ndr_interface_table;
 165 struct ndr_interface_call;
 166 struct ndr_push;
 167 struct ndr_pull;
 168 struct tevent_context;
 169 struct tstream_context;
 170
 171 /* from ../librpc/rpc/dcerpc_util.c */
 172 void dcerpc_set_frag_length(DATA_BLOB *blob, uint16_t v);
 173 uint16_t dcerpc_get_frag_length(const DATA_BLOB *blob);
 174 void dcerpc_set_auth_length(DATA_BLOB *blob, uint16_t v);
 175 struct tevent_req *dcerpc_read_ncacn_packet_send(TALLOC_CTX *mem_ctx,
 176                                                  struct tevent_context *ev,
 177                                                  struct tstream_context *stream);
 178 NTSTATUS dcerpc_read_ncacn_packet_recv(struct tevent_req *req,
 179                                        TALLOC_CTX *mem_ctx,
 180                                        struct ncacn_packet **pkt,
 181                                        DATA_BLOB *buffer);
 182
 183 /*
 184  * This is just a hack this should never be used in code,
 185  * but it's needed to build the compat stubs for now
 186  */
 187 struct __do_not_use_dcerpc_pipe {
 188         struct dcerpc_binding_handle *binding_handle;
 189 };
 190 #define dcerpc_pipe __do_not_use_dcerpc_pipe
 191
 192
 193 struct dcerpc_binding_handle_ops {
 194         const char *name;
 195
 196         bool (*is_connected)(struct dcerpc_binding_handle *h);
 197         uint32_t (*set_timeout)(struct dcerpc_binding_handle *h,
 198                                 uint32_t timeout);
 199
 200         struct tevent_req *(*raw_call_send)(TALLOC_CTX *mem_ctx,
 201                                             struct tevent_context *ev,
 202                                             struct dcerpc_binding_handle *h,
 203                                             const struct GUID *object,
 204                                             uint32_t opnum,
 205                                             uint32_t in_flags,
 206                                             const uint8_t *in_data,
 207                                             size_t in_length);
 208         NTSTATUS (*raw_call_recv)(struct tevent_req *req,
 209                                   TALLOC_CTX *mem_ctx,
 210                                   uint8_t **out_data,
 211                                   size_t *out_length,
 212                                   uint32_t *out_flags);
 213
 214         struct tevent_req *(*disconnect_send)(TALLOC_CTX *mem_ctx,
 215                                               struct tevent_context *ev,
 216                                               struct dcerpc_binding_handle *h);
 217         NTSTATUS (*disconnect_recv)(struct tevent_req *req);
 218
 219         /* TODO: remove the following functions */
 220         bool (*push_bigendian)(struct dcerpc_binding_handle *h);
 221         bool (*ref_alloc)(struct dcerpc_binding_handle *h);
 222         bool (*use_ndr64)(struct dcerpc_binding_handle *h);
 223         void (*do_ndr_print)(struct dcerpc_binding_handle *h,
 224                              int ndr_flags,
 225                              const void *struct_ptr,
 226                              const struct ndr_interface_call *call);
 227         void (*ndr_push_failed)(struct dcerpc_binding_handle *h,
 228                                 NTSTATUS error,
 229                                 const void *struct_ptr,
 230                                 const struct ndr_interface_call *call);
 231         void (*ndr_pull_failed)(struct dcerpc_binding_handle *h,
 232                                 NTSTATUS error,
 233                                 const DATA_BLOB *blob,
 234                                 const struct ndr_interface_call *call);
 235         NTSTATUS (*ndr_validate_in)(struct dcerpc_binding_handle *h,
 236                                     TALLOC_CTX *mem_ctx,
 237                                     const DATA_BLOB *blob,
 238                                     const struct ndr_interface_call *call);
 239         NTSTATUS (*ndr_validate_out)(struct dcerpc_binding_handle *h,
 240                                      struct ndr_pull *pull_in,
 241                                      const void *struct_ptr,
 242                                      const struct ndr_interface_call *call);
 243 };
 244
 245 struct dcerpc_binding_handle *_dcerpc_binding_handle_create(TALLOC_CTX *mem_ctx,
 246                                         const struct dcerpc_binding_handle_ops *ops,
 247                                         const struct GUID *object,
 248                                         const struct ndr_interface_table *table,
 249                                         void *pstate,
 250                                         size_t psize,
 251                                         const char *type,
 252                                         const char *location);
 253 #define dcerpc_binding_handle_create(mem_ctx, ops, object, table, \
 254                                 state, type, location) \
 255         _dcerpc_binding_handle_create(mem_ctx, ops, object, table, \
 256                                 state, sizeof(type), #type, location)
 257
 258 void *_dcerpc_binding_handle_data(struct dcerpc_binding_handle *h);
 259 #define dcerpc_binding_handle_data(_h, _type) \
 260         talloc_get_type_abort(_dcerpc_binding_handle_data(_h), _type)
 261
 262 _DEPRECATED_ void dcerpc_binding_handle_set_ref_alloc(struct dcerpc_binding_handle *h,
 263                                                       bool ref_alloc);
 264
 265 _DEPRECATED_ void dcerpc_binding_handle_set_sync_ev(struct dcerpc_binding_handle *h,
 266                                                     struct tevent_context *ev);
 267
 268 bool dcerpc_binding_handle_is_connected(struct dcerpc_binding_handle *h);
 269
 270 uint32_t dcerpc_binding_handle_set_timeout(struct dcerpc_binding_handle *h,
 271                                            uint32_t timeout);
 272
 273 struct tevent_req *dcerpc_binding_handle_raw_call_send(TALLOC_CTX *mem_ctx,
 274                                                 struct tevent_context *ev,
 275                                                 struct dcerpc_binding_handle *h,
 276                                                 const struct GUID *object,
 277                                                 uint32_t opnum,
 278                                                 uint32_t in_flags,
 279                                                 const uint8_t *in_data,
 280                                                 size_t in_length);
 281 NTSTATUS dcerpc_binding_handle_raw_call_recv(struct tevent_req *req,
 282                                              TALLOC_CTX *mem_ctx,
 283                                              uint8_t **out_data,
 284                                              size_t *out_length,
 285                                              uint32_t *out_flags);
 286
 287 struct tevent_req *dcerpc_binding_handle_disconnect_send(TALLOC_CTX *mem_ctx,
 288                                                 struct tevent_context *ev,
 289                                                 struct dcerpc_binding_handle *h);
 290 NTSTATUS dcerpc_binding_handle_disconnect_recv(struct tevent_req *req);
 291
 292 struct tevent_req *dcerpc_binding_handle_call_send(TALLOC_CTX *mem_ctx,
 293                                         struct tevent_context *ev,
 294                                         struct dcerpc_binding_handle *h,
 295                                         const struct GUID *object,
 296                                         const struct ndr_interface_table *table,
 297                                         uint32_t opnum,
 298                                         TALLOC_CTX *r_mem,
 299                                         void *r_ptr);
 300 NTSTATUS dcerpc_binding_handle_call_recv(struct tevent_req *req);
 301 NTSTATUS dcerpc_binding_handle_call(struct dcerpc_binding_handle *h,
 302                                     const struct GUID *object,
 303                                     const struct ndr_interface_table *table,
 304                                     uint32_t opnum,
 305                                     TALLOC_CTX *r_mem,
 306                                     void *r_ptr);
 307
 308 #endif /* __DCERPC_H__ */