source3/smbd/globals.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    smbd globals
   4    Copyright (C) Stefan Metzmacher 2009
   5    Copyright (C) Jeremy Allison 2010
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "system/select.h"
  22 #include "librpc/gen_ndr/smbXsrv.h"
  23
  24 extern int aio_pending_size;
  25 extern int outstanding_aio_calls;
  26
  27 #ifdef USE_DMAPI
  28 struct smbd_dmapi_context;
  29 extern struct smbd_dmapi_context *dmapi_ctx;
  30 #endif
  31
  32 extern bool dfree_broken;
  33
  34 /* how many write cache buffers have been allocated */
  35 extern unsigned int allocated_write_caches;
  36
  37 /* A singleton cache to speed up searching by dev/inode. */
  38 struct fsp_singleton_cache {
  39         files_struct *fsp;
  40         struct file_id id;
  41 };
  42
  43 extern const struct mangle_fns *mangle_fns;
  44
  45 extern unsigned char *chartest;
  46 struct tdb_context;
  47 extern struct tdb_context *tdb_mangled_cache;
  48
  49 /*
  50   this determines how many characters are used from the original filename
  51   in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
  52   The largest possible value is 6.
  53 */
  54 extern unsigned mangle_prefix;
  55
  56 struct msg_state;
  57
  58 extern bool logged_ioctl_message;
  59
  60 extern int trans_num;
  61
  62 extern time_t last_smb_conf_reload_time;
  63 extern time_t last_printer_reload_time;
  64 extern pid_t background_lpq_updater_pid;
  65
  66 /****************************************************************************
  67  structure to hold a linked list of queued messages.
  68  for processing.
  69 ****************************************************************************/
  70 extern uint32_t common_flags2;
  71
  72 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
  73 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
  74
  75 struct sec_ctx {
  76         struct security_unix_token ut;
  77         struct security_token *token;
  78 };
  79 /* A stack of security contexts.  We include the current context as being
  80    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
  81 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
  82 extern int sec_ctx_stack_ndx;
  83 extern bool become_uid_done;
  84 extern bool become_gid_done;
  85
  86 extern connection_struct *last_conn;
  87 extern uint16_t last_flags;
  88
  89 extern uint32_t global_client_caps;
  90
  91 extern uint16_t fnf_handle;
  92
  93 struct conn_ctx {
  94         connection_struct *conn;
  95         uint64_t vuid;
  96 };
  97 /* A stack of current_user connection contexts. */
  98 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  99 extern int conn_ctx_stack_ndx;
 100
 101 struct vfs_init_function_entry;
 102 extern struct vfs_init_function_entry *backends;
 103 extern char *sparse_buf;
 104 extern char *LastDir;
 105
 106 struct smbd_parent_context;
 107 extern struct smbd_parent_context *am_parent;
 108 extern struct memcache *smbd_memcache_ctx;
 109 extern bool exit_firsttime;
 110
 111 struct tstream_context;
 112 struct smbd_smb2_request;
 113
 114 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 115
 116 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 117 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 118
 119 NTSTATUS smbd_do_locking(struct smb_request *req,
 120                          files_struct *fsp,
 121                          uint8_t type,
 122                          int32_t timeout,
 123                          uint16_t num_locks,
 124                          struct smbd_lock_element *locks,
 125                          bool *async);
 126 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 127                            files_struct *fsp,
 128                            uint16_t num_ulocks,
 129                            struct smbd_lock_element *ulocks);
 130
 131 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 132                                TALLOC_CTX *mem_ctx,
 133                                uint16_t info_level,
 134                                files_struct *fsp,
 135                                struct smb_filename *smb_fname,
 136                                bool delete_pending,
 137                                struct timespec write_time_ts,
 138                                struct ea_list *ea_list,
 139                                int lock_data_count,
 140                                char *lock_data,
 141                                uint16_t flags2,
 142                                unsigned int max_data_bytes,
 143                                size_t *fixed_portion,
 144                                char **ppdata,
 145                                unsigned int *pdata_size);
 146
 147 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 148                                 struct smb_request *req,
 149                                 TALLOC_CTX *mem_ctx,
 150                                 uint16_t info_level,
 151                                 files_struct *fsp,
 152                                 struct smb_filename *smb_fname,
 153                                 char **ppdata, int total_data,
 154                                 int *ret_data_size);
 155
 156 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 157                          connection_struct *conn,
 158                          TALLOC_CTX *mem_ctx,
 159                          uint16_t info_level,
 160                          uint16_t flags2,
 161                          unsigned int max_data_bytes,
 162                          size_t *fixed_portion,
 163                          struct smb_filename *smb_fname,
 164                          char **ppdata,
 165                          int *ret_data_len);
 166
 167 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 168                            struct dptr_struct *dirptr,
 169                            const char *mask,
 170                            uint32_t dirtype,
 171                            bool dont_descend,
 172                            bool ask_sharemode,
 173                            bool (*match_fn)(TALLOC_CTX *ctx,
 174                                             void *private_data,
 175                                             const char *dname,
 176                                             const char *mask,
 177                                             char **_fname),
 178                            bool (*mode_fn)(TALLOC_CTX *ctx,
 179                                            void *private_data,
 180                                            struct smb_filename *smb_fname,
 181                                            uint32_t *_mode),
 182                            void *private_data,
 183                            char **_fname,
 184                            struct smb_filename **_smb_fname,
 185                            uint32_t *_mode,
 186                            long *_prev_offset);
 187
 188 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 189                                connection_struct *conn,
 190                                struct dptr_struct *dirptr,
 191                                uint16 flags2,
 192                                const char *path_mask,
 193                                uint32 dirtype,
 194                                int info_level,
 195                                int requires_resume_key,
 196                                bool dont_descend,
 197                                bool ask_sharemode,
 198                                uint8_t align,
 199                                bool do_pad,
 200                                char **ppdata,
 201                                char *base_data,
 202                                char *end_data,
 203                                int space_remaining,
 204                                bool *got_exact_match,
 205                                int *_last_entry_off,
 206                                struct ea_list *name_list);
 207
 208 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 209                                     const struct smb_filename *smb_fname,
 210                                     bool use_privs,
 211                                     uint32_t access_mask,
 212                                     uint32_t *access_mask_out);
 213
 214 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 215
 216 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 217                                          const char *reason,
 218                                          const char *location);
 219 #define smbd_server_connection_terminate(xconn, reason) \
 220         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 221
 222 const char *smb2_opcode_name(uint16_t opcode);
 223 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 224
 225 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 226                              struct smbXsrv_connection **_xconn);
 227
 228 void reply_smb2002(struct smb_request *req, uint16_t choice);
 229 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 230 void smbd_smb2_first_negprot(struct smbXsrv_connection *xconn,
 231                              const uint8_t *inpdu, size_t size);
 232
 233 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 234
 235 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 236                                     NTSTATUS status,
 237                                     DATA_BLOB *info,
 238                                     const char *location);
 239 #define smbd_smb2_request_error(req, status) \
 240         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 241 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 242                                    NTSTATUS status,
 243                                    DATA_BLOB body, DATA_BLOB *dyn,
 244                                    const char *location);
 245 #define smbd_smb2_request_done(req, body, dyn) \
 246         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 247
 248 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
 249                                      struct smbXsrv_session *session,
 250                                      struct smbXsrv_tcon *tcon,
 251                                      struct smbXsrv_open *op,
 252                                      uint8_t oplock_level);
 253
 254 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 255                                          struct tevent_req *subreq,
 256                                          uint32_t defer_time);
 257
 258 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 259 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 260 void remove_smb2_chained_fsp(files_struct *fsp);
 261
 262 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 263                                                uint32_t data_length);
 264
 265 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 266                                         size_t expected_body_size);
 267
 268 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 269                                                      const int dialect_count,
 270                                                      uint16_t *dialect);
 271 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 272 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 273 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 274 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 275 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 276 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 277 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 278 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 279 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 280 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 281 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 282 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 283 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 284                                     int err);
 285 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 286 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 287 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 288 NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
 289 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 290 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 291 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 292 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 293 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 294 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 295                                 struct tevent_immediate *im,
 296                                 void *private_data);
 297
 298 struct deferred_open_record;
 299
 300 /* SMB1 -> SMB2 glue. */
 301 void send_break_message_smb2(files_struct *fsp, int level);
 302 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 303 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 304                                 struct smb_request *req,
 305                                 files_struct *fsp,
 306                                 int lock_timeout,
 307                                 int lock_num,
 308                                 uint64_t smblctx,
 309                                 enum brl_type lock_type,
 310                                 enum brl_flavour lock_flav,
 311                                 uint64_t offset,
 312                                 uint64_t count,
 313                                 uint64_t blocking_smblctx);
 314 void process_blocking_lock_queue_smb2(
 315         struct smbd_server_connection *sconn, struct timeval tv_curr);
 316 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 317                         struct byte_range_lock *br_lck,
 318                         enum file_close_type close_type);
 319 /* From smbd/smb2_create.c */
 320 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 321 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 322                         struct timeval *p_request_time,
 323                         struct deferred_open_record **open_rec);
 324 bool open_was_deferred_smb2(
 325         struct smbXsrv_connection *xconn, uint64_t mid);
 326 void remove_deferred_open_message_smb2(
 327         struct smbXsrv_connection *xconn, uint64_t mid);
 328 bool schedule_deferred_open_message_smb2(
 329         struct smbXsrv_connection *xconn, uint64_t mid);
 330 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 331                                 struct timeval request_time,
 332                                 struct timeval timeout,
 333                                 struct file_id id,
 334                                 struct deferred_open_record *open_rec);
 335
 336 struct smbXsrv_client;
 337
 338 struct smbXsrv_connection {
 339         struct smbXsrv_connection *prev, *next;
 340
 341         struct smbXsrv_client *client;
 342
 343
 344         const struct tsocket_address *local_address;
 345         const struct tsocket_address *remote_address;
 346         const char *remote_hostname;
 347
 348         struct tevent_context *ev_ctx;
 349         struct messaging_context *msg_ctx;
 350
 351         enum protocol_types protocol;
 352
 353         struct {
 354                 NTSTATUS status;
 355                 int sock;
 356                 struct tevent_fd *fde;
 357
 358                 struct {
 359                         bool got_session;
 360                 } nbt;
 361         } transport;
 362
 363         struct {
 364                 struct {
 365                         /*
 366                          * fd for the fcntl lock and process shared
 367                          * robust mutex to coordinate access to the
 368                          * client socket. When the system supports
 369                          * process shared robust mutexes, those are
 370                          * used. If not, then the fcntl lock will be
 371                          * used.
 372                          */
 373                         int socket_lock_fd;
 374 #ifdef HAVE_ROBUST_MUTEXES
 375                         pthread_mutex_t *socket_mutex;
 376 #endif
 377
 378                         /*
 379                          * fd for the trusted pipe from
 380                          * echo handler child
 381                          */
 382                         int trusted_fd;
 383
 384                         /*
 385                          * fde for the trusted_fd
 386                          */
 387                         struct tevent_fd *trusted_fde;
 388
 389                         /*
 390                          * Reference count for the fcntl lock to
 391                          * allow recursive locks.
 392                          */
 393                         int ref_count;
 394                 } echo_handler;
 395
 396                 struct {
 397                         bool encrypted_passwords;
 398                         bool spnego;
 399                         struct auth4_context *auth_context;
 400                         bool done;
 401                         /*
 402                          * Size of the data we can receive. Set by us.
 403                          * Can be modified by the max xmit parameter.
 404                          */
 405                         int max_recv;
 406                 } negprot;
 407
 408                 struct {
 409                         bool done_sesssetup;
 410                         /*
 411                          * Size of data we can send to client. Set
 412                          *  by the client for all protocols above CORE.
 413                          *  Set by us for CORE protocol.
 414                          */
 415                         int max_send;
 416                 } sessions;
 417                 struct smb_signing_state *signing_state;
 418
 419                 struct {
 420                         uint16_t client_major;
 421                         uint16_t client_minor;
 422                         uint32_t client_cap_low;
 423                         uint32_t client_cap_high;
 424                 } unix_info;
 425
 426                 struct msg_state *msg_state;
 427         } smb1;
 428         struct {
 429                 struct smbd_smb2_request_read_state {
 430                         struct smbd_smb2_request *req;
 431                         struct {
 432                                 uint8_t nbt[NBT_HDR_SIZE];
 433                                 bool done;
 434                         } hdr;
 435                         struct iovec vector;
 436                         bool doing_receivefile;
 437                         size_t min_recv_size;
 438                         size_t pktfull;
 439                         size_t pktlen;
 440                         uint8_t *pktbuf;
 441                 } request_read_state;
 442                 struct smbd_smb2_send_queue *send_queue;
 443                 size_t send_queue_len;
 444
 445                 struct {
 446                         /*
 447                          * seq_low is the lowest sequence number
 448                          * we will accept.
 449                          */
 450                         uint64_t seq_low;
 451                         /*
 452                          * seq_range is the range of credits we have
 453                          * granted from the sequence windows starting
 454                          * at seq_low.
 455                          *
 456                          * This gets incremented when new credits are
 457                          * granted and gets decremented when the
 458                          * lowest sequence number is consumed
 459                          * (when seq_low gets incremented).
 460                          */
 461                         uint16_t seq_range;
 462                         /*
 463                          * The number of credits we have currently granted
 464                          * to the client.
 465                          *
 466                          * This gets incremented when new credits are
 467                          * granted and gets decremented when any credit
 468                          * is comsumed.
 469                          *
 470                          * Note: the decrementing is different compared
 471                          *       to seq_range.
 472                          */
 473                         uint16_t granted;
 474                         /*
 475                          * The maximum number of credits we will ever
 476                          * grant to the client.
 477                          *
 478                          * Typically we will only grant 1/16th of
 479                          * max_credits.
 480                          *
 481                          * This is the "server max credits" parameter.
 482                          */
 483                         uint16_t max;
 484                         /*
 485                          * a bitmap of size max_credits
 486                          */
 487                         struct bitmap *bitmap;
 488                         bool multicredit;
 489                 } credits;
 490
 491                 bool allow_2ff;
 492                 struct {
 493                         uint32_t capabilities;
 494                         struct GUID guid;
 495                         uint16_t security_mode;
 496                         uint16_t num_dialects;
 497                         uint16_t *dialects;
 498                 } client;
 499                 struct {
 500                         uint32_t capabilities;
 501                         struct GUID guid;
 502                         uint16_t security_mode;
 503                         uint16_t dialect;
 504                         uint32_t max_trans;
 505                         uint32_t max_read;
 506                         uint32_t max_write;
 507                 } server;
 508
 509                 struct smbd_smb2_request *requests;
 510         } smb2;
 511 };
 512
 513 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 514
 515 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 516 uint32_t smbXsrv_version_global_current(void);
 517
 518 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 519                                         enum protocol_types protocol);
 520
 521 NTSTATUS smbXsrv_session_global_init(void);
 522 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 523                                 NTTIME now,
 524                                 struct smbXsrv_session **_session);
 525 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 526 struct smbXsrv_channel_global0;
 527 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 528                                       const struct smbXsrv_connection *conn,
 529                                       struct smbXsrv_channel_global0 **_c);
 530 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 531 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
 532 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 533 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 534                                 uint16_t vuid, NTTIME now,
 535                                 struct smbXsrv_session **session);
 536 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 537 NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn,
 538                                 uint64_t session_id, NTTIME now,
 539                                 struct smbXsrv_session **session);
 540 struct smbXsrv_session_global0;
 541 NTSTATUS smbXsrv_session_global_traverse(
 542                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 543                         void *private_data);
 544 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 545                                         struct tevent_context *ev,
 546                                         struct smbXsrv_connection *conn,
 547                                         struct auth_session_info *session_info,
 548                                         uint64_t previous_session_id,
 549                                         uint64_t current_session_id);
 550 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 551
 552 NTSTATUS smbXsrv_tcon_global_init(void);
 553 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 554 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 555 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 556 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 557                              NTTIME now,
 558                              struct smbXsrv_tcon **_tcon);
 559 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 560                              uint16_t tree_id, NTTIME now,
 561                              struct smbXsrv_tcon **tcon);
 562 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
 563 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 564 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 565                              NTTIME now,
 566                              struct smbXsrv_tcon **_tcon);
 567 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 568                              uint32_t tree_id, NTTIME now,
 569                              struct smbXsrv_tcon **tcon);
 570 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 571 struct smbXsrv_tcon_global0;
 572 NTSTATUS smbXsrv_tcon_global_traverse(
 573                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 574                         void *private_data);
 575
 576 NTSTATUS smbXsrv_open_global_init(void);
 577 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 578                              struct auth_session_info *session_info,
 579                              NTTIME now,
 580                              struct smbXsrv_open **_open);
 581 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
 582 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 583 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 584 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 585 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 586                              uint16_t fnum, NTTIME now,
 587                              struct smbXsrv_open **_open);
 588 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 589 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 590                              uint64_t persistent_id,
 591                              uint64_t volatile_id,
 592                              NTTIME now,
 593                              struct smbXsrv_open **_open);
 594 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 595                                struct auth_session_info *session_info,
 596                                uint64_t persistent_id,
 597                                const struct GUID *create_guid,
 598                                NTTIME now,
 599                                struct smbXsrv_open **_open);
 600 struct smbXsrv_open_global0;
 601 NTSTATUS smbXsrv_open_global_traverse(
 602         int (*fn)(struct smbXsrv_open_global0 *, void *),
 603         void *private_data);
 604
 605 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 606
 607 struct smbd_smb2_send_queue {
 608         struct smbd_smb2_send_queue *prev, *next;
 609
 610         DATA_BLOB *sendfile_header;
 611         NTSTATUS *sendfile_status;
 612         struct iovec *vector;
 613         int count;
 614
 615         TALLOC_CTX *mem_ctx;
 616 };
 617
 618 struct smbd_smb2_request {
 619         struct smbd_smb2_request *prev, *next;
 620
 621         struct smbd_server_connection *sconn;
 622         struct smbXsrv_connection *xconn;
 623
 624         struct smbd_smb2_send_queue queue_entry;
 625
 626         /* the session the request operates on, maybe NULL */
 627         struct smbXsrv_session *session;
 628         uint64_t last_session_id;
 629
 630         /* the tcon the request operates on, maybe NULL */
 631         struct smbXsrv_tcon *tcon;
 632         uint32_t last_tid;
 633
 634         int current_idx;
 635         bool do_signing;
 636         bool do_encryption;
 637         struct tevent_timer *async_te;
 638         bool compound_related;
 639
 640         /*
 641          * the encryption key for the whole
 642          * compound chain
 643          */
 644         DATA_BLOB first_key;
 645         /*
 646          * the signing key for the last
 647          * request/response of a compound chain
 648          */
 649         DATA_BLOB last_key;
 650
 651         struct timeval request_time;
 652
 653         /* fake smb1 request. */
 654         struct smb_request *smb1req;
 655         struct files_struct *compat_chain_fsp;
 656
 657         /*
 658          * The sub request for async backend calls.
 659          * This is used for SMB2 Cancel.
 660          */
 661         struct tevent_req *subreq;
 662
 663 #define SMBD_SMB2_TF_IOV_OFS 0
 664 #define SMBD_SMB2_HDR_IOV_OFS 1
 665 #define SMBD_SMB2_BODY_IOV_OFS 2
 666 #define SMBD_SMB2_DYN_IOV_OFS 3
 667
 668 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 669
 670 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 671         (&req->dir.vector[(idx)+(ofs)])
 672
 673 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 674         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 675 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 676         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 677 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 678         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 679 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 680         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 681
 682 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 683 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 684 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 685 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 686 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 687 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 688 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 689 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 690 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 691 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 692
 693 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 694 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 695 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 696 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 697 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 698 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 699 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 700 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 701 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 702 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 703
 704 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 705
 706         struct {
 707                 /*
 708                  * vector[0] TRANSPORT HEADER (empty)
 709                  * .
 710                  * vector[1] SMB2_TRANSFORM (optional)
 711                  * vector[2] SMB2
 712                  * vector[3] fixed body
 713                  * vector[4] dynamic body
 714                  * .
 715                  * .
 716                  * .
 717                  * vector[5] SMB2_TRANSFORM (optional)
 718                  * vector[6] SMB2
 719                  * vector[7] fixed body
 720                  * vector[8] dynamic body
 721                  * .
 722                  * .
 723                  * .
 724                  */
 725                 struct iovec *vector;
 726                 int vector_count;
 727                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 728         } in;
 729         struct {
 730                 /* the NBT header is not allocated */
 731                 uint8_t nbt_hdr[4];
 732                 /*
 733                  * vector[0] TRANSPORT HEADER
 734                  * .
 735                  * vector[1] SMB2_TRANSFORM (optional)
 736                  * vector[2] SMB2
 737                  * vector[3] fixed body
 738                  * vector[4] dynamic body
 739                  * .
 740                  * .
 741                  * .
 742                  * vector[5] SMB2_TRANSFORM (empty)
 743                  * vector[6] SMB2
 744                  * vector[7] fixed body
 745                  * vector[8] dynamic body
 746                  * .
 747                  * .
 748                  * .
 749                  */
 750                 struct iovec *vector;
 751                 int vector_count;
 752                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 753 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 754                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 755                 uint8_t _body[0x58];
 756         } out;
 757 };
 758
 759 struct smbd_server_connection;
 760 struct user_struct;
 761
 762 struct pending_message_list;
 763 struct pending_auth_data;
 764
 765 struct user_struct {
 766         struct user_struct *next, *prev;
 767         uint64_t vuid; /* Tag for this entry. */
 768
 769         char *session_keystr; /* used by utmp and pam session code.
 770                                  TDB key string */
 771         int homes_snum;
 772
 773         struct auth_session_info *session_info;
 774
 775         struct smbXsrv_session *session;
 776 };
 777
 778 struct smbd_server_connection {
 779         const struct tsocket_address *local_address;
 780         const struct tsocket_address *remote_address;
 781         const char *remote_hostname;
 782         struct tevent_context *ev_ctx;
 783         struct messaging_context *msg_ctx;
 784         struct sys_notify_context *sys_notify_ctx;
 785         struct notify_context *notify_ctx;
 786         bool using_smb2;
 787         int trans_num;
 788
 789         size_t num_users;
 790         struct user_struct *users;
 791
 792         size_t num_connections;
 793         struct connection_struct *connections;
 794
 795         size_t num_files;
 796         struct files_struct *files;
 797
 798         int real_max_open_files;
 799         struct fsp_singleton_cache fsp_fi_cache;
 800
 801         struct pending_message_list *deferred_open_queue;
 802
 803
 804         /* open directory handles. */
 805         struct {
 806                 struct bitmap *dptr_bmap;
 807                 struct dptr_struct *dirptrs;
 808                 int dirhandles_open;
 809         } searches;
 810
 811         uint64_t num_requests;
 812
 813         /* Current number of oplocks we have outstanding. */
 814         struct {
 815                 int32_t exclusive_open;
 816                 int32_t level_II_open;
 817                 struct kernel_oplocks *kernel_ops;
 818         } oplocks;
 819
 820         struct {
 821                 struct notify_mid_map *notify_mid_maps;
 822
 823                 struct {
 824                         /* dlink list we store pending lock records on. */
 825                         struct blocking_lock_record *blocking_lock_queue;
 826                         /* dlink list we move cancelled lock records onto. */
 827                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 828
 829                         /* The event that makes us process our blocking lock queue */
 830                         struct tevent_timer *brl_timeout;
 831
 832                         bool blocking_lock_unlock_state;
 833                         bool blocking_lock_cancel_state;
 834                 } locks;
 835         } smb1;
 836         struct {
 837                 struct {
 838                         /* The event that makes us process our blocking lock queue */
 839                         struct tevent_timer *brl_timeout;
 840                         bool blocking_lock_unlock_state;
 841                 } locks;
 842         } smb2;
 843
 844         /*
 845          * Link into libasys for asynchronous operations
 846          */
 847         struct asys_context *asys_ctx;
 848         struct tevent_fd *asys_fde;
 849
 850         struct smbXsrv_client *client;
 851 };
 852
 853 extern struct smbXsrv_client *global_smbXsrv_client;
 854
 855 void smbd_init_globals(void);