source4/librpc/rpc/dcerpc.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    DCERPC client side interface structures
   5
   6    Copyright (C) Tim Potter 2003
   7    Copyright (C) Andrew Tridgell 2003-2005
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 /* This is a public header file that is installed as part of Samba.
  24  * If you remove any functions or change their signature, update
  25  * the so version number. */
  26
  27 #ifndef __S4_DCERPC_H__
  28 #define __S4_DCERPC_H__
  29
  30 #include "../lib/util/data_blob.h"
  31 #include "librpc/gen_ndr/dcerpc.h"
  32 #include "../librpc/ndr/libndr.h"
  33 #include "../librpc/rpc/rpc_common.h"
  34
  35 struct tevent_context;
  36 struct tevent_req;
  37 struct dcerpc_binding_handle;
  38 struct tstream_context;
  39 struct ndr_interface_table;
  40 struct resolve_context;
  41
  42 /*
  43   this defines a generic security context for signed/sealed dcerpc pipes.
  44 */
  45 struct dcecli_connection;
  46 struct gensec_settings;
  47 struct cli_credentials;
  48 struct dcecli_security {
  49         struct dcerpc_auth *auth_info;
  50         struct gensec_security *generic_state;
  51
  52         /* get the session key */
  53         NTSTATUS (*session_key)(struct dcecli_connection *, DATA_BLOB *);
  54 };
  55
  56 /*
  57   this holds the information that is not specific to a particular rpc context_id
  58 */
  59 struct rpc_request;
  60 struct dcecli_connection {
  61         uint32_t call_id;
  62         uint32_t srv_max_xmit_frag;
  63         uint32_t srv_max_recv_frag;
  64         uint32_t flags;
  65         struct dcecli_security security_state;
  66         const char *binding_string;
  67         struct tevent_context *event_ctx;
  68
  69         struct tevent_immediate *io_trigger;
  70         bool io_trigger_pending;
  71
  72         /** Directory in which to save ndrdump-parseable files */
  73         const char *packet_log_dir;
  74
  75         bool dead;
  76         bool free_skipped;
  77
  78         struct dcerpc_transport {
  79                 enum dcerpc_transport_t transport;
  80                 void *private_data;
  81
  82                 struct tstream_context *stream;
  83                 /** to serialize write events */
  84                 struct tevent_queue *write_queue;
  85                 /** the current active read request if any */
  86                 struct tevent_req *read_subreq;
  87                 /** number of read requests other than the current active */
  88                 uint32_t pending_reads;
  89         } transport;
  90
  91         const char *server_name;
  92
  93         /* Requests that have been sent, waiting for a reply */
  94         struct rpc_request *pending;
  95
  96         /* Sync requests waiting to be shipped */
  97         struct rpc_request *request_queue;
  98
  99         /* the next context_id to be assigned */
 100         uint32_t next_context_id;
 101 };
 102
 103 /*
 104   this encapsulates a full dcerpc client side pipe
 105 */
 106 struct dcerpc_pipe {
 107         struct dcerpc_binding_handle *binding_handle;
 108
 109         uint32_t context_id;
 110
 111         uint32_t assoc_group_id;
 112
 113         struct ndr_syntax_id syntax;
 114         struct ndr_syntax_id transfer_syntax;
 115
 116         struct dcecli_connection *conn;
 117         struct dcerpc_binding *binding;
 118
 119         /** the last fault code from a DCERPC fault */
 120         uint32_t last_fault_code;
 121
 122         /** timeout for individual rpc requests, in seconds */
 123         uint32_t request_timeout;
 124
 125         /*
 126          * Set for the timeout in dcerpc_pipe_connect_b_send(), to
 127          * allow the timeout not to destory the stack during a nested
 128          * event loop caused by gensec_update()
 129          */
 130         bool inhibit_timeout_processing;
 131         bool timed_out;
 132 };
 133
 134 /* default timeout for all rpc requests, in seconds */
 135 #define DCERPC_REQUEST_TIMEOUT 60
 136
 137 struct epm_tower;
 138 struct epm_floor;
 139
 140 struct smbcli_tree;
 141 struct smb2_tree;
 142 struct smbXcli_conn;
 143 struct smbXcli_session;
 144 struct smbXcli_tcon;
 145 struct socket_address;
 146
 147 NTSTATUS dcerpc_pipe_connect(TALLOC_CTX *parent_ctx,
 148                              struct dcerpc_pipe **pp,
 149                              const char *binding,
 150                              const struct ndr_interface_table *table,
 151                              struct cli_credentials *credentials,
 152                              struct tevent_context *ev,
 153                              struct loadparm_context *lp_ctx);
 154 const char *dcerpc_server_name(struct dcerpc_pipe *p);
 155 struct dcerpc_pipe *dcerpc_pipe_init(TALLOC_CTX *mem_ctx, struct tevent_context *ev);
 156 NTSTATUS dcerpc_pipe_open_smb(struct dcerpc_pipe *p,
 157                               struct smbcli_tree *tree,
 158                               const char *pipe_name);
 159 NTSTATUS dcerpc_pipe_open_smb2(struct dcerpc_pipe *p,
 160                                struct smb2_tree *tree,
 161                                const char *pipe_name);
 162 NTSTATUS dcerpc_bind_auth_none(struct dcerpc_pipe *p,
 163                                const struct ndr_interface_table *table);
 164 NTSTATUS dcerpc_fetch_session_key(struct dcerpc_pipe *p,
 165                                   DATA_BLOB *session_key);
 166 struct composite_context;
 167 NTSTATUS dcerpc_secondary_connection_recv(struct composite_context *c,
 168                                           struct dcerpc_pipe **p2);
 169
 170 struct composite_context* dcerpc_pipe_connect_b_send(TALLOC_CTX *parent_ctx,
 171                                                      struct dcerpc_binding *binding,
 172                                                      const struct ndr_interface_table *table,
 173                                                      struct cli_credentials *credentials,
 174                                                      struct tevent_context *ev,
 175                                                      struct loadparm_context *lp_ctx);
 176
 177 NTSTATUS dcerpc_pipe_connect_b_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
 178                                     struct dcerpc_pipe **p);
 179
 180 NTSTATUS dcerpc_pipe_connect_b(TALLOC_CTX *parent_ctx,
 181                                struct dcerpc_pipe **pp,
 182                                struct dcerpc_binding *binding,
 183                                const struct ndr_interface_table *table,
 184                                struct cli_credentials *credentials,
 185                                struct tevent_context *ev,
 186                                struct loadparm_context *lp_ctx);
 187
 188 NTSTATUS dcerpc_pipe_auth(TALLOC_CTX *mem_ctx,
 189                           struct dcerpc_pipe **p,
 190                           struct dcerpc_binding *binding,
 191                           const struct ndr_interface_table *table,
 192                           struct cli_credentials *credentials,
 193                           struct loadparm_context *lp_ctx);
 194 NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p,
 195                                      struct dcerpc_pipe **p2,
 196                                      struct dcerpc_binding *b);
 197 NTSTATUS dcerpc_bind_auth_schannel(TALLOC_CTX *tmp_ctx,
 198                                    struct dcerpc_pipe *p,
 199                                    const struct ndr_interface_table *table,
 200                                    struct cli_credentials *credentials,
 201                                    struct loadparm_context *lp_ctx,
 202                                    uint8_t auth_level);
 203 NTSTATUS dcerpc_init(void);
 204 struct composite_context *dcerpc_secondary_smb_send(struct dcecli_connection *c1,
 205                                                     struct dcecli_connection *c2,
 206                                                     const char *pipe_name);
 207 NTSTATUS dcerpc_secondary_smb_recv(struct composite_context *c);
 208 NTSTATUS dcerpc_secondary_context(struct dcerpc_pipe *p,
 209                                   struct dcerpc_pipe **pp2,
 210                                   const struct ndr_interface_table *table);
 211 NTSTATUS dcerpc_alter_context(struct dcerpc_pipe *p,
 212                               TALLOC_CTX *mem_ctx,
 213                               const struct ndr_syntax_id *syntax,
 214                               const struct ndr_syntax_id *transfer_syntax);
 215
 216 NTSTATUS dcerpc_bind_auth(struct dcerpc_pipe *p,
 217                           const struct ndr_interface_table *table,
 218                           struct cli_credentials *credentials,
 219                           struct gensec_settings *gensec_settings,
 220                           uint8_t auth_type, uint8_t auth_level,
 221                           const char *service);
 222 struct composite_context* dcerpc_pipe_connect_send(TALLOC_CTX *parent_ctx,
 223                                                    const char *binding,
 224                                                    const struct ndr_interface_table *table,
 225                                                    struct cli_credentials *credentials,
 226                                                    struct tevent_context *ev, struct loadparm_context *lp_ctx);
 227 NTSTATUS dcerpc_pipe_connect_recv(struct composite_context *c,
 228                                   TALLOC_CTX *mem_ctx,
 229                                   struct dcerpc_pipe **pp);
 230
 231 NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding,
 232                                 const struct ndr_interface_table *table, struct tevent_context *ev,
 233                                 struct loadparm_context *lp_ctx);
 234 struct composite_context* dcerpc_secondary_auth_connection_send(struct dcerpc_pipe *p,
 235                                                                 struct dcerpc_binding *binding,
 236                                                                 const struct ndr_interface_table *table,
 237                                                                 struct cli_credentials *credentials,
 238                                                                 struct loadparm_context *lp_ctx);
 239 NTSTATUS dcerpc_secondary_auth_connection_recv(struct composite_context *c,
 240                                                TALLOC_CTX *mem_ctx,
 241                                                struct dcerpc_pipe **p);
 242
 243 struct composite_context* dcerpc_secondary_connection_send(struct dcerpc_pipe *p,
 244                                                            struct dcerpc_binding *b);
 245 void dcerpc_log_packet(const char *lockdir,
 246                        const struct ndr_interface_table *ndr,
 247                        uint32_t opnum, uint32_t flags,
 248                        const DATA_BLOB *pkt);
 249
 250 #endif /* __S4_DCERPC_H__ */