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 #include "smbprofile.h"
  24
  25 extern int aio_pending_size;
  26 extern int outstanding_aio_calls;
  27
  28 #ifdef USE_DMAPI
  29 struct smbd_dmapi_context;
  30 extern struct smbd_dmapi_context *dmapi_ctx;
  31 #endif
  32
  33 extern bool dfree_broken;
  34
  35 /* how many write cache buffers have been allocated */
  36 extern unsigned int allocated_write_caches;
  37
  38 /* A singleton cache to speed up searching by dev/inode. */
  39 struct fsp_singleton_cache {
  40         files_struct *fsp;
  41         struct file_id id;
  42 };
  43
  44 extern const struct mangle_fns *mangle_fns;
  45
  46 extern unsigned char *chartest;
  47 struct tdb_context;
  48 extern struct tdb_context *tdb_mangled_cache;
  49
  50 /*
  51   this determines how many characters are used from the original filename
  52   in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
  53   The largest possible value is 6.
  54 */
  55 extern unsigned mangle_prefix;
  56
  57 struct msg_state;
  58
  59 extern bool logged_ioctl_message;
  60
  61 extern int trans_num;
  62
  63 extern time_t last_smb_conf_reload_time;
  64 extern time_t last_printer_reload_time;
  65 extern pid_t background_lpq_updater_pid;
  66
  67 /****************************************************************************
  68  structure to hold a linked list of queued messages.
  69  for processing.
  70 ****************************************************************************/
  71 extern uint32_t common_flags2;
  72
  73 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
  74 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
  75
  76 struct sec_ctx {
  77         struct security_unix_token ut;
  78         struct security_token *token;
  79 };
  80 /* A stack of security contexts.  We include the current context as being
  81    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
  82 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
  83 extern int sec_ctx_stack_ndx;
  84 extern bool become_uid_done;
  85 extern bool become_gid_done;
  86
  87 extern connection_struct *last_conn;
  88 extern uint16_t last_flags;
  89
  90 extern uint32_t global_client_caps;
  91
  92 extern uint16_t fnf_handle;
  93
  94 struct conn_ctx {
  95         connection_struct *conn;
  96         uint64_t vuid;
  97 };
  98 /* A stack of current_user connection contexts. */
  99 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
 100 extern int conn_ctx_stack_ndx;
 101
 102 struct vfs_init_function_entry;
 103 extern struct vfs_init_function_entry *backends;
 104 extern char *sparse_buf;
 105 extern char *LastDir;
 106
 107 struct smbd_parent_context;
 108 extern struct smbd_parent_context *am_parent;
 109 extern struct memcache *smbd_memcache_ctx;
 110 extern bool exit_firsttime;
 111
 112 struct tstream_context;
 113 struct smbd_smb2_request;
 114
 115 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 116
 117 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 118 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 119
 120 NTSTATUS smbd_do_locking(struct smb_request *req,
 121                          files_struct *fsp,
 122                          uint8_t type,
 123                          int32_t timeout,
 124                          uint16_t num_locks,
 125                          struct smbd_lock_element *locks,
 126                          bool *async);
 127 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 128                            files_struct *fsp,
 129                            uint16_t num_ulocks,
 130                            struct smbd_lock_element *ulocks);
 131
 132 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 133                                TALLOC_CTX *mem_ctx,
 134                                uint16_t info_level,
 135                                files_struct *fsp,
 136                                struct smb_filename *smb_fname,
 137                                bool delete_pending,
 138                                struct timespec write_time_ts,
 139                                struct ea_list *ea_list,
 140                                int lock_data_count,
 141                                char *lock_data,
 142                                uint16_t flags2,
 143                                unsigned int max_data_bytes,
 144                                size_t *fixed_portion,
 145                                char **ppdata,
 146                                unsigned int *pdata_size);
 147
 148 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 149                                 struct smb_request *req,
 150                                 TALLOC_CTX *mem_ctx,
 151                                 uint16_t info_level,
 152                                 files_struct *fsp,
 153                                 struct smb_filename *smb_fname,
 154                                 char **ppdata, int total_data,
 155                                 int *ret_data_size);
 156
 157 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 158                          connection_struct *conn,
 159                          TALLOC_CTX *mem_ctx,
 160                          uint16_t info_level,
 161                          uint16_t flags2,
 162                          unsigned int max_data_bytes,
 163                          size_t *fixed_portion,
 164                          struct smb_filename *smb_fname,
 165                          char **ppdata,
 166                          int *ret_data_len);
 167
 168 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 169                            struct dptr_struct *dirptr,
 170                            const char *mask,
 171                            uint32_t dirtype,
 172                            bool dont_descend,
 173                            bool ask_sharemode,
 174                            bool (*match_fn)(TALLOC_CTX *ctx,
 175                                             void *private_data,
 176                                             const char *dname,
 177                                             const char *mask,
 178                                             char **_fname),
 179                            bool (*mode_fn)(TALLOC_CTX *ctx,
 180                                            void *private_data,
 181                                            struct smb_filename *smb_fname,
 182                                            uint32_t *_mode),
 183                            void *private_data,
 184                            char **_fname,
 185                            struct smb_filename **_smb_fname,
 186                            uint32_t *_mode,
 187                            long *_prev_offset);
 188
 189 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 190                                connection_struct *conn,
 191                                struct dptr_struct *dirptr,
 192                                uint16 flags2,
 193                                const char *path_mask,
 194                                uint32 dirtype,
 195                                int info_level,
 196                                int requires_resume_key,
 197                                bool dont_descend,
 198                                bool ask_sharemode,
 199                                uint8_t align,
 200                                bool do_pad,
 201                                char **ppdata,
 202                                char *base_data,
 203                                char *end_data,
 204                                int space_remaining,
 205                                bool *got_exact_match,
 206                                int *_last_entry_off,
 207                                struct ea_list *name_list);
 208
 209 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 210                                     const struct smb_filename *smb_fname,
 211                                     bool use_privs,
 212                                     uint32_t access_mask,
 213                                     uint32_t *access_mask_out);
 214
 215 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 216
 217 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 218                                          const char *reason,
 219                                          const char *location);
 220 #define smbd_server_connection_terminate(xconn, reason) \
 221         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 222
 223 const char *smb2_opcode_name(uint16_t opcode);
 224 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 225
 226 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 227                              struct smbXsrv_connection **_xconn);
 228
 229 void reply_smb2002(struct smb_request *req, uint16_t choice);
 230 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 231 void smbd_smb2_first_negprot(struct smbXsrv_connection *xconn,
 232                              const uint8_t *inpdu, size_t size);
 233
 234 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 235
 236 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 237                                     NTSTATUS status,
 238                                     DATA_BLOB *info,
 239                                     const char *location);
 240 #define smbd_smb2_request_error(req, status) \
 241         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 242 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 243                                    NTSTATUS status,
 244                                    DATA_BLOB body, DATA_BLOB *dyn,
 245                                    const char *location);
 246 #define smbd_smb2_request_done(req, body, dyn) \
 247         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 248
 249 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
 250                                      struct smbXsrv_session *session,
 251                                      struct smbXsrv_tcon *tcon,
 252                                      struct smbXsrv_open *op,
 253                                      uint8_t oplock_level);
 254 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,
 255                                     uint16_t new_epoch,
 256                                     uint32_t lease_flags,
 257                                     struct smb2_lease_key *lease_key,
 258                                     uint32_t current_lease_state,
 259                                     uint32_t new_lease_state);
 260
 261 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 262                                          struct tevent_req *subreq,
 263                                          uint32_t defer_time);
 264
 265 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 266 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 267 void remove_smb2_chained_fsp(files_struct *fsp);
 268
 269 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 270                                                uint32_t data_length);
 271
 272 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 273                                         size_t expected_body_size);
 274
 275 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 276                                                      const int dialect_count,
 277                                                      uint16_t *dialect);
 278 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 279 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 280 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 281 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 282 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 283 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 284 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 285 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 286 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 287 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 288 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 289 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 290 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 291                                     int err);
 292 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 293 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 294 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 295 NTSTATUS smbd_smb2_request_process_find(struct smbd_smb2_request *req);
 296 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 297 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 298 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 299 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 300 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 301 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 302                                 struct tevent_immediate *im,
 303                                 void *private_data);
 304
 305 struct deferred_open_record;
 306
 307 /* SMB1 -> SMB2 glue. */
 308 void send_break_message_smb2(files_struct *fsp,
 309                              uint32_t break_from,
 310                              uint32_t break_to);
 311 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 312 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 313                                 struct smb_request *req,
 314                                 files_struct *fsp,
 315                                 int lock_timeout,
 316                                 int lock_num,
 317                                 uint64_t smblctx,
 318                                 enum brl_type lock_type,
 319                                 enum brl_flavour lock_flav,
 320                                 uint64_t offset,
 321                                 uint64_t count,
 322                                 uint64_t blocking_smblctx);
 323 void process_blocking_lock_queue_smb2(
 324         struct smbd_server_connection *sconn, struct timeval tv_curr);
 325 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 326                         struct byte_range_lock *br_lck,
 327                         enum file_close_type close_type);
 328 /* From smbd/smb2_create.c */
 329 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 330 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 331                         struct timeval *p_request_time,
 332                         struct deferred_open_record **open_rec);
 333 bool open_was_deferred_smb2(
 334         struct smbXsrv_connection *xconn, uint64_t mid);
 335 void remove_deferred_open_message_smb2(
 336         struct smbXsrv_connection *xconn, uint64_t mid);
 337 bool schedule_deferred_open_message_smb2(
 338         struct smbXsrv_connection *xconn, uint64_t mid);
 339 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 340                                 struct timeval request_time,
 341                                 struct timeval timeout,
 342                                 struct file_id id,
 343                                 struct deferred_open_record *open_rec);
 344
 345 struct smbXsrv_client;
 346
 347 struct smbXsrv_connection {
 348         struct smbXsrv_connection *prev, *next;
 349
 350         struct smbXsrv_client *client;
 351
 352
 353         const struct tsocket_address *local_address;
 354         const struct tsocket_address *remote_address;
 355         const char *remote_hostname;
 356
 357         struct tevent_context *ev_ctx;
 358         struct messaging_context *msg_ctx;
 359
 360         enum protocol_types protocol;
 361
 362         struct {
 363                 NTSTATUS status;
 364                 int sock;
 365                 struct tevent_fd *fde;
 366
 367                 struct {
 368                         bool got_session;
 369                 } nbt;
 370         } transport;
 371
 372         struct {
 373                 struct {
 374                         /*
 375                          * fd for the fcntl lock and process shared
 376                          * robust mutex to coordinate access to the
 377                          * client socket. When the system supports
 378                          * process shared robust mutexes, those are
 379                          * used. If not, then the fcntl lock will be
 380                          * used.
 381                          */
 382                         int socket_lock_fd;
 383 #ifdef HAVE_ROBUST_MUTEXES
 384                         pthread_mutex_t *socket_mutex;
 385 #endif
 386
 387                         /*
 388                          * fd for the trusted pipe from
 389                          * echo handler child
 390                          */
 391                         int trusted_fd;
 392
 393                         /*
 394                          * fde for the trusted_fd
 395                          */
 396                         struct tevent_fd *trusted_fde;
 397
 398                         /*
 399                          * Reference count for the fcntl lock to
 400                          * allow recursive locks.
 401                          */
 402                         int ref_count;
 403                 } echo_handler;
 404
 405                 struct {
 406                         bool encrypted_passwords;
 407                         bool spnego;
 408                         struct auth4_context *auth_context;
 409                         bool done;
 410                         /*
 411                          * Size of the data we can receive. Set by us.
 412                          * Can be modified by the max xmit parameter.
 413                          */
 414                         int max_recv;
 415                 } negprot;
 416
 417                 struct {
 418                         bool done_sesssetup;
 419                         /*
 420                          * Size of data we can send to client. Set
 421                          *  by the client for all protocols above CORE.
 422                          *  Set by us for CORE protocol.
 423                          */
 424                         int max_send;
 425                 } sessions;
 426                 struct smb_signing_state *signing_state;
 427
 428                 struct {
 429                         uint16_t client_major;
 430                         uint16_t client_minor;
 431                         uint32_t client_cap_low;
 432                         uint32_t client_cap_high;
 433                 } unix_info;
 434
 435                 struct msg_state *msg_state;
 436         } smb1;
 437         struct {
 438                 struct smbd_smb2_request_read_state {
 439                         struct smbd_smb2_request *req;
 440                         struct {
 441                                 uint8_t nbt[NBT_HDR_SIZE];
 442                                 bool done;
 443                         } hdr;
 444                         struct iovec vector;
 445                         bool doing_receivefile;
 446                         size_t min_recv_size;
 447                         size_t pktfull;
 448                         size_t pktlen;
 449                         uint8_t *pktbuf;
 450                 } request_read_state;
 451                 struct smbd_smb2_send_queue *send_queue;
 452                 size_t send_queue_len;
 453
 454                 struct {
 455                         /*
 456                          * seq_low is the lowest sequence number
 457                          * we will accept.
 458                          */
 459                         uint64_t seq_low;
 460                         /*
 461                          * seq_range is the range of credits we have
 462                          * granted from the sequence windows starting
 463                          * at seq_low.
 464                          *
 465                          * This gets incremented when new credits are
 466                          * granted and gets decremented when the
 467                          * lowest sequence number is consumed
 468                          * (when seq_low gets incremented).
 469                          */
 470                         uint16_t seq_range;
 471                         /*
 472                          * The number of credits we have currently granted
 473                          * to the client.
 474                          *
 475                          * This gets incremented when new credits are
 476                          * granted and gets decremented when any credit
 477                          * is comsumed.
 478                          *
 479                          * Note: the decrementing is different compared
 480                          *       to seq_range.
 481                          */
 482                         uint16_t granted;
 483                         /*
 484                          * The maximum number of credits we will ever
 485                          * grant to the client.
 486                          *
 487                          * Typically we will only grant 1/16th of
 488                          * max_credits.
 489                          *
 490                          * This is the "server max credits" parameter.
 491                          */
 492                         uint16_t max;
 493                         /*
 494                          * a bitmap of size max_credits
 495                          */
 496                         struct bitmap *bitmap;
 497                         bool multicredit;
 498                 } credits;
 499
 500                 bool allow_2ff;
 501                 struct {
 502                         uint32_t capabilities;
 503                         struct GUID guid;
 504                         uint16_t security_mode;
 505                         uint16_t num_dialects;
 506                         uint16_t *dialects;
 507                 } client;
 508                 struct {
 509                         uint32_t capabilities;
 510                         struct GUID guid;
 511                         uint16_t security_mode;
 512                         uint16_t dialect;
 513                         uint32_t max_trans;
 514                         uint32_t max_read;
 515                         uint32_t max_write;
 516                         uint16_t cipher;
 517                 } server;
 518
 519                 struct smbd_smb2_request *requests;
 520         } smb2;
 521 };
 522
 523 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 524
 525 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 526 uint32_t smbXsrv_version_global_current(void);
 527
 528 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 529                                         enum protocol_types protocol);
 530
 531 NTSTATUS smbXsrv_session_global_init(void);
 532 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 533                                 NTTIME now,
 534                                 struct smbXsrv_session **_session);
 535 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 536 struct smbXsrv_channel_global0;
 537 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 538                                       const struct smbXsrv_connection *conn,
 539                                       struct smbXsrv_channel_global0 **_c);
 540 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 541 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
 542 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 543 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 544                                 uint16_t vuid, NTTIME now,
 545                                 struct smbXsrv_session **session);
 546 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 547 NTSTATUS smb2srv_session_lookup(struct smbXsrv_connection *conn,
 548                                 uint64_t session_id, NTTIME now,
 549                                 struct smbXsrv_session **session);
 550 struct smbXsrv_session_global0;
 551 NTSTATUS smbXsrv_session_global_traverse(
 552                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 553                         void *private_data);
 554 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 555                                         struct tevent_context *ev,
 556                                         struct smbXsrv_connection *conn,
 557                                         struct auth_session_info *session_info,
 558                                         uint64_t previous_session_id,
 559                                         uint64_t current_session_id);
 560 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 561
 562 NTSTATUS smbXsrv_tcon_global_init(void);
 563 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 564 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 565 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 566 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 567                              NTTIME now,
 568                              struct smbXsrv_tcon **_tcon);
 569 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 570                              uint16_t tree_id, NTTIME now,
 571                              struct smbXsrv_tcon **tcon);
 572 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
 573 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 574 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 575                              NTTIME now,
 576                              struct smbXsrv_tcon **_tcon);
 577 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 578                              uint32_t tree_id, NTTIME now,
 579                              struct smbXsrv_tcon **tcon);
 580 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 581 struct smbXsrv_tcon_global0;
 582 NTSTATUS smbXsrv_tcon_global_traverse(
 583                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 584                         void *private_data);
 585
 586 NTSTATUS smbXsrv_open_global_init(void);
 587 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 588                              struct auth_session_info *session_info,
 589                              NTTIME now,
 590                              struct smbXsrv_open **_open);
 591 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
 592 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 593 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 594 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 595 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 596                              uint16_t fnum, NTTIME now,
 597                              struct smbXsrv_open **_open);
 598 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 599 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 600                              uint64_t persistent_id,
 601                              uint64_t volatile_id,
 602                              NTTIME now,
 603                              struct smbXsrv_open **_open);
 604 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 605                                struct auth_session_info *session_info,
 606                                uint64_t persistent_id,
 607                                const struct GUID *create_guid,
 608                                NTTIME now,
 609                                struct smbXsrv_open **_open);
 610 struct smbXsrv_open_global0;
 611 NTSTATUS smbXsrv_open_global_traverse(
 612         int (*fn)(struct smbXsrv_open_global0 *, void *),
 613         void *private_data);
 614
 615 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 616
 617 struct smbd_smb2_send_queue {
 618         struct smbd_smb2_send_queue *prev, *next;
 619
 620         DATA_BLOB *sendfile_header;
 621         NTSTATUS *sendfile_status;
 622         struct iovec *vector;
 623         int count;
 624
 625         TALLOC_CTX *mem_ctx;
 626 };
 627
 628 struct smbd_smb2_request {
 629         struct smbd_smb2_request *prev, *next;
 630
 631         struct smbd_server_connection *sconn;
 632         struct smbXsrv_connection *xconn;
 633
 634         struct smbd_smb2_send_queue queue_entry;
 635
 636         /* the session the request operates on, maybe NULL */
 637         struct smbXsrv_session *session;
 638         uint64_t last_session_id;
 639
 640         /* the tcon the request operates on, maybe NULL */
 641         struct smbXsrv_tcon *tcon;
 642         uint32_t last_tid;
 643
 644         int current_idx;
 645         bool do_signing;
 646         bool do_encryption;
 647         struct tevent_timer *async_te;
 648         bool compound_related;
 649
 650         /*
 651          * the encryption key for the whole
 652          * compound chain
 653          */
 654         DATA_BLOB first_key;
 655         /*
 656          * the signing key for the last
 657          * request/response of a compound chain
 658          */
 659         DATA_BLOB last_key;
 660
 661         struct timeval request_time;
 662
 663         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 664
 665         /* fake smb1 request. */
 666         struct smb_request *smb1req;
 667         struct files_struct *compat_chain_fsp;
 668
 669         /*
 670          * The sub request for async backend calls.
 671          * This is used for SMB2 Cancel.
 672          */
 673         struct tevent_req *subreq;
 674
 675 #define SMBD_SMB2_TF_IOV_OFS 0
 676 #define SMBD_SMB2_HDR_IOV_OFS 1
 677 #define SMBD_SMB2_BODY_IOV_OFS 2
 678 #define SMBD_SMB2_DYN_IOV_OFS 3
 679
 680 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 681
 682 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 683         (&req->dir.vector[(idx)+(ofs)])
 684
 685 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 686         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 687 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 688         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 689 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 690         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 691 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 692         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 693
 694 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 695 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 696 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 697 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 698 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 699 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 700 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 701 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 702 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 703 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 704
 705 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 706 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 707 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 708 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 709 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 710 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 711 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 712 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 713 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 714 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 715
 716 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 717
 718         struct {
 719                 /*
 720                  * vector[0] TRANSPORT HEADER (empty)
 721                  * .
 722                  * vector[1] SMB2_TRANSFORM (optional)
 723                  * vector[2] SMB2
 724                  * vector[3] fixed body
 725                  * vector[4] dynamic body
 726                  * .
 727                  * .
 728                  * .
 729                  * vector[5] SMB2_TRANSFORM (optional)
 730                  * vector[6] SMB2
 731                  * vector[7] fixed body
 732                  * vector[8] dynamic body
 733                  * .
 734                  * .
 735                  * .
 736                  */
 737                 struct iovec *vector;
 738                 int vector_count;
 739                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 740         } in;
 741         struct {
 742                 /* the NBT header is not allocated */
 743                 uint8_t nbt_hdr[4];
 744                 /*
 745                  * vector[0] TRANSPORT HEADER
 746                  * .
 747                  * vector[1] SMB2_TRANSFORM (optional)
 748                  * vector[2] SMB2
 749                  * vector[3] fixed body
 750                  * vector[4] dynamic body
 751                  * .
 752                  * .
 753                  * .
 754                  * vector[5] SMB2_TRANSFORM (empty)
 755                  * vector[6] SMB2
 756                  * vector[7] fixed body
 757                  * vector[8] dynamic body
 758                  * .
 759                  * .
 760                  * .
 761                  */
 762                 struct iovec *vector;
 763                 int vector_count;
 764                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 765 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 766                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 767                 uint8_t _body[0x58];
 768         } out;
 769 };
 770
 771 struct smbd_server_connection;
 772 struct user_struct;
 773
 774 struct pending_message_list;
 775 struct pending_auth_data;
 776
 777 struct user_struct {
 778         struct user_struct *next, *prev;
 779         uint64_t vuid; /* Tag for this entry. */
 780
 781         char *session_keystr; /* used by utmp and pam session code.
 782                                  TDB key string */
 783         int homes_snum;
 784
 785         struct auth_session_info *session_info;
 786
 787         struct smbXsrv_session *session;
 788 };
 789
 790 struct smbd_server_connection {
 791         const struct tsocket_address *local_address;
 792         const struct tsocket_address *remote_address;
 793         const char *remote_hostname;
 794         struct tevent_context *ev_ctx;
 795         struct messaging_context *msg_ctx;
 796         struct sys_notify_context *sys_notify_ctx;
 797         struct notify_context *notify_ctx;
 798         bool using_smb2;
 799         int trans_num;
 800
 801         size_t num_users;
 802         struct user_struct *users;
 803
 804         size_t num_connections;
 805         struct connection_struct *connections;
 806
 807         size_t num_files;
 808         struct files_struct *files;
 809
 810         int real_max_open_files;
 811         struct fsp_singleton_cache fsp_fi_cache;
 812
 813         struct pending_message_list *deferred_open_queue;
 814
 815
 816         /* open directory handles. */
 817         struct {
 818                 struct bitmap *dptr_bmap;
 819                 struct dptr_struct *dirptrs;
 820                 int dirhandles_open;
 821         } searches;
 822
 823         uint64_t num_requests;
 824
 825         /* Current number of oplocks we have outstanding. */
 826         struct {
 827                 int32_t exclusive_open;
 828                 int32_t level_II_open;
 829                 struct kernel_oplocks *kernel_ops;
 830         } oplocks;
 831
 832         struct {
 833                 struct notify_mid_map *notify_mid_maps;
 834
 835                 struct {
 836                         /* dlink list we store pending lock records on. */
 837                         struct blocking_lock_record *blocking_lock_queue;
 838                         /* dlink list we move cancelled lock records onto. */
 839                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 840
 841                         /* The event that makes us process our blocking lock queue */
 842                         struct tevent_timer *brl_timeout;
 843
 844                         bool blocking_lock_unlock_state;
 845                         bool blocking_lock_cancel_state;
 846                 } locks;
 847         } smb1;
 848         struct {
 849                 struct {
 850                         /* The event that makes us process our blocking lock queue */
 851                         struct tevent_timer *brl_timeout;
 852                         bool blocking_lock_unlock_state;
 853                 } locks;
 854         } smb2;
 855
 856         /*
 857          * Link into libasys for asynchronous operations
 858          */
 859         struct asys_context *asys_ctx;
 860         struct tevent_fd *asys_fde;
 861
 862         struct smbXsrv_client *client;
 863 };
 864
 865 extern struct smbXsrv_client *global_smbXsrv_client;
 866
 867 void smbd_init_globals(void);