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 /* how many write cache buffers have been allocated */
  34 extern unsigned int allocated_write_caches;
  35
  36 /* A singleton cache to speed up searching by dev/inode. */
  37 struct fsp_singleton_cache {
  38         files_struct *fsp;
  39         struct file_id id;
  40 };
  41
  42 extern const struct mangle_fns *mangle_fns;
  43
  44 extern unsigned char *chartest;
  45 struct tdb_context;
  46 extern struct tdb_context *tdb_mangled_cache;
  47
  48 /*
  49   this determines how many characters are used from the original filename
  50   in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
  51   The largest possible value is 6.
  52 */
  53 extern unsigned mangle_prefix;
  54
  55 struct msg_state;
  56
  57 extern bool logged_ioctl_message;
  58
  59 extern int trans_num;
  60
  61 extern time_t last_smb_conf_reload_time;
  62 extern time_t last_printer_reload_time;
  63 extern pid_t background_lpq_updater_pid;
  64
  65 /****************************************************************************
  66  structure to hold a linked list of queued messages.
  67  for processing.
  68 ****************************************************************************/
  69 extern uint32_t common_flags2;
  70
  71 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
  72 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
  73
  74 struct sec_ctx {
  75         struct security_unix_token ut;
  76         struct security_token *token;
  77 };
  78 /* A stack of security contexts.  We include the current context as being
  79    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
  80 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
  81 extern int sec_ctx_stack_ndx;
  82 extern bool become_uid_done;
  83 extern bool become_gid_done;
  84
  85 extern connection_struct *last_conn;
  86 extern uint16_t last_flags;
  87
  88 extern uint32_t global_client_caps;
  89
  90 extern uint16_t fnf_handle;
  91
  92 struct conn_ctx {
  93         connection_struct *conn;
  94         uint64_t vuid;
  95 };
  96 /* A stack of current_user connection contexts. */
  97 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  98 extern int conn_ctx_stack_ndx;
  99
 100 struct vfs_init_function_entry;
 101 extern struct vfs_init_function_entry *backends;
 102 extern char *sparse_buf;
 103 extern char *LastDir;
 104
 105 struct smbd_parent_context;
 106 extern struct smbd_parent_context *am_parent;
 107 extern struct memcache *smbd_memcache_ctx;
 108 extern bool exit_firsttime;
 109
 110 struct tstream_context;
 111 struct smbd_smb2_request;
 112
 113 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 114
 115 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 116 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 117
 118 NTSTATUS smbd_do_locking(struct smb_request *req,
 119                          files_struct *fsp,
 120                          uint8_t type,
 121                          int32_t timeout,
 122                          uint16_t num_locks,
 123                          struct smbd_lock_element *locks,
 124                          bool *async);
 125 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 126                            files_struct *fsp,
 127                            uint16_t num_ulocks,
 128                            struct smbd_lock_element *ulocks);
 129
 130 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 131                                TALLOC_CTX *mem_ctx,
 132                                uint16_t info_level,
 133                                files_struct *fsp,
 134                                struct smb_filename *smb_fname,
 135                                bool delete_pending,
 136                                struct timespec write_time_ts,
 137                                struct ea_list *ea_list,
 138                                int lock_data_count,
 139                                char *lock_data,
 140                                uint16_t flags2,
 141                                unsigned int max_data_bytes,
 142                                size_t *fixed_portion,
 143                                char **ppdata,
 144                                unsigned int *pdata_size);
 145
 146 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 147                                 struct smb_request *req,
 148                                 TALLOC_CTX *mem_ctx,
 149                                 uint16_t info_level,
 150                                 files_struct *fsp,
 151                                 struct smb_filename *smb_fname,
 152                                 char **ppdata, int total_data,
 153                                 int *ret_data_size);
 154
 155 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 156                          connection_struct *conn,
 157                          TALLOC_CTX *mem_ctx,
 158                          uint16_t info_level,
 159                          uint16_t flags2,
 160                          unsigned int max_data_bytes,
 161                          size_t *fixed_portion,
 162                          struct smb_filename *smb_fname,
 163                          char **ppdata,
 164                          int *ret_data_len);
 165
 166 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 167                            struct dptr_struct *dirptr,
 168                            const char *mask,
 169                            uint32_t dirtype,
 170                            bool dont_descend,
 171                            bool ask_sharemode,
 172                            bool (*match_fn)(TALLOC_CTX *ctx,
 173                                             void *private_data,
 174                                             const char *dname,
 175                                             const char *mask,
 176                                             char **_fname),
 177                            bool (*mode_fn)(TALLOC_CTX *ctx,
 178                                            void *private_data,
 179                                            struct smb_filename *smb_fname,
 180                                            uint32_t *_mode),
 181                            void *private_data,
 182                            char **_fname,
 183                            struct smb_filename **_smb_fname,
 184                            uint32_t *_mode,
 185                            long *_prev_offset);
 186
 187 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 188                                connection_struct *conn,
 189                                struct dptr_struct *dirptr,
 190                                uint16_t flags2,
 191                                const char *path_mask,
 192                                uint32_t dirtype,
 193                                int info_level,
 194                                int requires_resume_key,
 195                                bool dont_descend,
 196                                bool ask_sharemode,
 197                                uint8_t align,
 198                                bool do_pad,
 199                                char **ppdata,
 200                                char *base_data,
 201                                char *end_data,
 202                                int space_remaining,
 203                                bool *got_exact_match,
 204                                int *_last_entry_off,
 205                                struct ea_list *name_list);
 206
 207 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 208                                     const struct smb_filename *smb_fname,
 209                                     bool use_privs,
 210                                     uint32_t access_mask,
 211                                     uint32_t *access_mask_out);
 212
 213 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 214
 215 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 216                                          const char *reason,
 217                                          const char *location);
 218 #define smbd_server_connection_terminate(xconn, reason) \
 219         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 220
 221 const char *smb2_opcode_name(uint16_t opcode);
 222 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 223
 224 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 225                              struct smbXsrv_connection **_xconn);
 226
 227 void reply_smb2002(struct smb_request *req, uint16_t choice);
 228 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 229 void smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 230                                uint64_t expected_seq_low,
 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 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,
 254                                     uint16_t new_epoch,
 255                                     uint32_t lease_flags,
 256                                     struct smb2_lease_key *lease_key,
 257                                     uint32_t current_lease_state,
 258                                     uint32_t new_lease_state);
 259
 260 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 261                                          struct tevent_req *subreq,
 262                                          uint32_t defer_time);
 263
 264 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 265 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 266 void remove_smb2_chained_fsp(files_struct *fsp);
 267
 268 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 269                                                uint32_t data_length);
 270
 271 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 272                                         size_t expected_body_size);
 273
 274 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 275                                                      const int dialect_count,
 276                                                      uint16_t *dialect);
 277 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 278 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 279 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 280 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 281 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 282 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 283 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 284 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 285 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 286 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 287 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 288 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 289 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 290                                     int err);
 291 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 292 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 293 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 294 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 295 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 296 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 297 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 298 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 299 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 300 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 301                                 struct tevent_immediate *im,
 302                                 void *private_data);
 303
 304 struct deferred_open_record;
 305
 306 /* SMB1 -> SMB2 glue. */
 307 void send_break_message_smb2(files_struct *fsp,
 308                              uint32_t break_from,
 309                              uint32_t break_to);
 310 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 311 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 312                                 struct smb_request *req,
 313                                 files_struct *fsp,
 314                                 int lock_timeout,
 315                                 int lock_num,
 316                                 uint64_t smblctx,
 317                                 enum brl_type lock_type,
 318                                 enum brl_flavour lock_flav,
 319                                 uint64_t offset,
 320                                 uint64_t count,
 321                                 uint64_t blocking_smblctx);
 322 void process_blocking_lock_queue_smb2(
 323         struct smbd_server_connection *sconn, struct timeval tv_curr);
 324 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 325                         struct byte_range_lock *br_lck,
 326                         enum file_close_type close_type);
 327 /* From smbd/smb2_create.c */
 328 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 329 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 330                         struct timeval *p_request_time,
 331                         struct deferred_open_record **open_rec);
 332 bool open_was_deferred_smb2(
 333         struct smbXsrv_connection *xconn, uint64_t mid);
 334 void remove_deferred_open_message_smb2(
 335         struct smbXsrv_connection *xconn, uint64_t mid);
 336 bool schedule_deferred_open_message_smb2(
 337         struct smbXsrv_connection *xconn, uint64_t mid);
 338 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 339                                 struct timeval request_time,
 340                                 struct timeval timeout,
 341                                 struct file_id id,
 342                                 struct deferred_open_record *open_rec);
 343
 344 struct smbXsrv_client;
 345
 346 struct smbXsrv_preauth {
 347         uint8_t sha512_value[64];
 348 };
 349
 350 struct smbXsrv_connection {
 351         struct smbXsrv_connection *prev, *next;
 352
 353         struct smbXsrv_client *client;
 354
 355
 356         const struct tsocket_address *local_address;
 357         const struct tsocket_address *remote_address;
 358         const char *remote_hostname;
 359
 360         struct tevent_context *ev_ctx;
 361         struct messaging_context *msg_ctx;
 362
 363         enum protocol_types protocol;
 364
 365         struct {
 366                 NTSTATUS status;
 367                 int sock;
 368                 struct tevent_fd *fde;
 369
 370                 struct {
 371                         bool got_session;
 372                 } nbt;
 373         } transport;
 374
 375         struct {
 376                 struct {
 377                         /*
 378                          * fd for the fcntl lock and process shared
 379                          * robust mutex to coordinate access to the
 380                          * client socket. When the system supports
 381                          * process shared robust mutexes, those are
 382                          * used. If not, then the fcntl lock will be
 383                          * used.
 384                          */
 385                         int socket_lock_fd;
 386 #ifdef HAVE_ROBUST_MUTEXES
 387                         pthread_mutex_t *socket_mutex;
 388 #endif
 389
 390                         /*
 391                          * fd for the trusted pipe from
 392                          * echo handler child
 393                          */
 394                         int trusted_fd;
 395
 396                         /*
 397                          * fde for the trusted_fd
 398                          */
 399                         struct tevent_fd *trusted_fde;
 400
 401                         /*
 402                          * Reference count for the fcntl lock to
 403                          * allow recursive locks.
 404                          */
 405                         int ref_count;
 406                 } echo_handler;
 407
 408                 struct {
 409                         bool encrypted_passwords;
 410                         bool spnego;
 411                         struct auth4_context *auth_context;
 412                         bool done;
 413                         /*
 414                          * Size of the data we can receive. Set by us.
 415                          * Can be modified by the max xmit parameter.
 416                          */
 417                         int max_recv;
 418                 } negprot;
 419
 420                 struct {
 421                         bool done_sesssetup;
 422                         /*
 423                          * Size of data we can send to client. Set
 424                          *  by the client for all protocols above CORE.
 425                          *  Set by us for CORE protocol.
 426                          */
 427                         int max_send;
 428                 } sessions;
 429                 struct smb_signing_state *signing_state;
 430
 431                 struct {
 432                         uint16_t client_major;
 433                         uint16_t client_minor;
 434                         uint32_t client_cap_low;
 435                         uint32_t client_cap_high;
 436                 } unix_info;
 437
 438                 struct msg_state *msg_state;
 439         } smb1;
 440         struct {
 441                 struct smbd_smb2_request_read_state {
 442                         struct smbd_smb2_request *req;
 443                         struct {
 444                                 uint8_t nbt[NBT_HDR_SIZE];
 445                                 bool done;
 446                         } hdr;
 447                         struct iovec vector;
 448                         bool doing_receivefile;
 449                         size_t min_recv_size;
 450                         size_t pktfull;
 451                         size_t pktlen;
 452                         uint8_t *pktbuf;
 453                 } request_read_state;
 454                 struct smbd_smb2_send_queue *send_queue;
 455                 size_t send_queue_len;
 456
 457                 struct {
 458                         /*
 459                          * seq_low is the lowest sequence number
 460                          * we will accept.
 461                          */
 462                         uint64_t seq_low;
 463                         /*
 464                          * seq_range is the range of credits we have
 465                          * granted from the sequence windows starting
 466                          * at seq_low.
 467                          *
 468                          * This gets incremented when new credits are
 469                          * granted and gets decremented when the
 470                          * lowest sequence number is consumed
 471                          * (when seq_low gets incremented).
 472                          */
 473                         uint16_t seq_range;
 474                         /*
 475                          * The number of credits we have currently granted
 476                          * to the client.
 477                          *
 478                          * This gets incremented when new credits are
 479                          * granted and gets decremented when any credit
 480                          * is comsumed.
 481                          *
 482                          * Note: the decrementing is different compared
 483                          *       to seq_range.
 484                          */
 485                         uint16_t granted;
 486                         /*
 487                          * The maximum number of credits we will ever
 488                          * grant to the client.
 489                          *
 490                          * Typically we will only grant 1/16th of
 491                          * max_credits.
 492                          *
 493                          * This is the "server max credits" parameter.
 494                          */
 495                         uint16_t max;
 496                         /*
 497                          * a bitmap of size max_credits
 498                          */
 499                         struct bitmap *bitmap;
 500                         bool multicredit;
 501                 } credits;
 502
 503                 bool allow_2ff;
 504                 struct {
 505                         uint32_t capabilities;
 506                         struct GUID guid;
 507                         uint16_t security_mode;
 508                         uint16_t num_dialects;
 509                         uint16_t *dialects;
 510                 } client;
 511                 struct {
 512                         uint32_t capabilities;
 513                         struct GUID guid;
 514                         uint16_t security_mode;
 515                         uint16_t dialect;
 516                         uint32_t max_trans;
 517                         uint32_t max_read;
 518                         uint32_t max_write;
 519                         uint16_t cipher;
 520                 } server;
 521
 522                 struct smbXsrv_preauth preauth;
 523
 524                 struct smbd_smb2_request *requests;
 525         } smb2;
 526 };
 527
 528 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 529
 530 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 531 uint32_t smbXsrv_version_global_current(void);
 532
 533 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 534                                         enum protocol_types protocol);
 535
 536 NTSTATUS smbXsrv_session_global_init(void);
 537 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 538                                 NTTIME now,
 539                                 struct smbXsrv_session **_session);
 540 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 541                                      struct smbXsrv_connection *conn,
 542                                      struct smbXsrv_channel_global0 **_c);
 543 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 544 struct smbXsrv_channel_global0;
 545 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 546                                       const struct smbXsrv_connection *conn,
 547                                       struct smbXsrv_channel_global0 **_c);
 548 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 549                                    const struct smbXsrv_connection *conn,
 550                                    NTTIME now,
 551                                    struct smbXsrv_session_auth0 **_a);
 552 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 553                                      struct smbXsrv_connection *conn,
 554                                      NTTIME now,
 555                                      uint8_t in_flags,
 556                                      uint8_t in_security_mode,
 557                                      struct smbXsrv_session_auth0 **_a);
 558 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 559                                         struct tevent_context *ev,
 560                                         struct smbXsrv_session *session,
 561                                         struct smbd_smb2_request *current_req);
 562 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 563 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 564 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
 565 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 566 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 567                                 uint16_t vuid, NTTIME now,
 568                                 struct smbXsrv_session **session);
 569 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 570 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 571                                      uint64_t session_id, NTTIME now,
 572                                      struct smbXsrv_session **session);
 573 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 574                                        uint64_t session_id, NTTIME now,
 575                                        struct smbXsrv_session **session);
 576 struct smbXsrv_session_global0;
 577 NTSTATUS smbXsrv_session_global_traverse(
 578                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 579                         void *private_data);
 580 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 581                                         struct tevent_context *ev,
 582                                         struct smbXsrv_connection *conn,
 583                                         struct auth_session_info *session_info,
 584                                         uint64_t previous_session_id,
 585                                         uint64_t current_session_id);
 586 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 587
 588 NTSTATUS smbXsrv_tcon_global_init(void);
 589 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 590 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 591 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 592 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 593                              NTTIME now,
 594                              struct smbXsrv_tcon **_tcon);
 595 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 596                              uint16_t tree_id, NTTIME now,
 597                              struct smbXsrv_tcon **tcon);
 598 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
 599 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 600 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 601                              NTTIME now,
 602                              struct smbXsrv_tcon **_tcon);
 603 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 604                              uint32_t tree_id, NTTIME now,
 605                              struct smbXsrv_tcon **tcon);
 606 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 607 struct smbXsrv_tcon_global0;
 608 NTSTATUS smbXsrv_tcon_global_traverse(
 609                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 610                         void *private_data);
 611
 612 NTSTATUS smbXsrv_open_global_init(void);
 613 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 614                              struct auth_session_info *session_info,
 615                              NTTIME now,
 616                              struct smbXsrv_open **_open);
 617 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
 618 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 619 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 620 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 621 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 622                              uint16_t fnum, NTTIME now,
 623                              struct smbXsrv_open **_open);
 624 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 625 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 626                              uint64_t persistent_id,
 627                              uint64_t volatile_id,
 628                              NTTIME now,
 629                              struct smbXsrv_open **_open);
 630 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 631                                struct auth_session_info *session_info,
 632                                uint64_t persistent_id,
 633                                const struct GUID *create_guid,
 634                                NTTIME now,
 635                                struct smbXsrv_open **_open);
 636 struct smbXsrv_open_global0;
 637 NTSTATUS smbXsrv_open_global_traverse(
 638         int (*fn)(struct smbXsrv_open_global0 *, void *),
 639         void *private_data);
 640
 641 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 642
 643 struct smbd_smb2_send_queue {
 644         struct smbd_smb2_send_queue *prev, *next;
 645
 646         DATA_BLOB *sendfile_header;
 647         NTSTATUS *sendfile_status;
 648         struct iovec *vector;
 649         int count;
 650
 651         TALLOC_CTX *mem_ctx;
 652 };
 653
 654 struct smbd_smb2_request {
 655         struct smbd_smb2_request *prev, *next;
 656
 657         struct smbd_server_connection *sconn;
 658         struct smbXsrv_connection *xconn;
 659
 660         struct smbd_smb2_send_queue queue_entry;
 661
 662         /* the session the request operates on, maybe NULL */
 663         struct smbXsrv_session *session;
 664         uint64_t last_session_id;
 665
 666         /* the tcon the request operates on, maybe NULL */
 667         struct smbXsrv_tcon *tcon;
 668         uint32_t last_tid;
 669
 670         int current_idx;
 671         bool do_signing;
 672         /* Was the request encrypted? */
 673         bool was_encrypted;
 674         /* Should we encrypt? */
 675         bool do_encryption;
 676         struct tevent_timer *async_te;
 677         bool compound_related;
 678
 679         /*
 680          * the encryption key for the whole
 681          * compound chain
 682          */
 683         DATA_BLOB first_key;
 684         /*
 685          * the signing key for the last
 686          * request/response of a compound chain
 687          */
 688         DATA_BLOB last_key;
 689         struct smbXsrv_preauth *preauth;
 690
 691         struct timeval request_time;
 692
 693         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 694
 695         /* fake smb1 request. */
 696         struct smb_request *smb1req;
 697         struct files_struct *compat_chain_fsp;
 698
 699         /*
 700          * The sub request for async backend calls.
 701          * This is used for SMB2 Cancel.
 702          */
 703         struct tevent_req *subreq;
 704
 705 #define SMBD_SMB2_TF_IOV_OFS 0
 706 #define SMBD_SMB2_HDR_IOV_OFS 1
 707 #define SMBD_SMB2_BODY_IOV_OFS 2
 708 #define SMBD_SMB2_DYN_IOV_OFS 3
 709
 710 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 711
 712 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 713         (&req->dir.vector[(idx)+(ofs)])
 714
 715 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 716         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 717 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 718         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 719 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 720         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 721 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 722         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 723
 724 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 725 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 726 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 727 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 728 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 729 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 730 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 731 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 732 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 733 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 734
 735 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 736 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 737 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 738 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 739 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 740 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 741 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 742 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 743 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 744 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 745
 746 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 747
 748         struct {
 749                 /*
 750                  * vector[0] TRANSPORT HEADER (empty)
 751                  * .
 752                  * vector[1] SMB2_TRANSFORM (optional)
 753                  * vector[2] SMB2
 754                  * vector[3] fixed body
 755                  * vector[4] dynamic body
 756                  * .
 757                  * .
 758                  * .
 759                  * vector[5] SMB2_TRANSFORM (optional)
 760                  * vector[6] SMB2
 761                  * vector[7] fixed body
 762                  * vector[8] dynamic body
 763                  * .
 764                  * .
 765                  * .
 766                  */
 767                 struct iovec *vector;
 768                 int vector_count;
 769                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 770         } in;
 771         struct {
 772                 /* the NBT header is not allocated */
 773                 uint8_t nbt_hdr[4];
 774                 /*
 775                  * vector[0] TRANSPORT HEADER
 776                  * .
 777                  * vector[1] SMB2_TRANSFORM (optional)
 778                  * vector[2] SMB2
 779                  * vector[3] fixed body
 780                  * vector[4] dynamic body
 781                  * .
 782                  * .
 783                  * .
 784                  * vector[5] SMB2_TRANSFORM (empty)
 785                  * vector[6] SMB2
 786                  * vector[7] fixed body
 787                  * vector[8] dynamic body
 788                  * .
 789                  * .
 790                  * .
 791                  */
 792                 struct iovec *vector;
 793                 int vector_count;
 794                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 795 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 796                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 797                 uint8_t _body[0x58];
 798         } out;
 799 };
 800
 801 struct smbd_server_connection;
 802 struct user_struct;
 803
 804 struct pending_message_list;
 805 struct pending_auth_data;
 806
 807 struct user_struct {
 808         struct user_struct *next, *prev;
 809         uint64_t vuid; /* Tag for this entry. */
 810
 811         char *session_keystr; /* used by utmp and pam session code.
 812                                  TDB key string */
 813         int homes_snum;
 814
 815         struct auth_session_info *session_info;
 816
 817         struct smbXsrv_session *session;
 818 };
 819
 820 struct smbd_server_connection {
 821         const struct tsocket_address *local_address;
 822         const struct tsocket_address *remote_address;
 823         const char *remote_hostname;
 824         struct tevent_context *ev_ctx;
 825         struct messaging_context *msg_ctx;
 826         struct sys_notify_context *sys_notify_ctx;
 827         struct notify_context *notify_ctx;
 828         bool using_smb2;
 829         int trans_num;
 830
 831         size_t num_users;
 832         struct user_struct *users;
 833
 834         size_t num_connections;
 835         struct connection_struct *connections;
 836
 837         size_t num_files;
 838         struct files_struct *files;
 839
 840         int real_max_open_files;
 841         struct fsp_singleton_cache fsp_fi_cache;
 842
 843         struct pending_message_list *deferred_open_queue;
 844
 845
 846         /* open directory handles. */
 847         struct {
 848                 struct bitmap *dptr_bmap;
 849                 struct dptr_struct *dirptrs;
 850                 int dirhandles_open;
 851         } searches;
 852
 853         uint64_t num_requests;
 854
 855         /* Current number of oplocks we have outstanding. */
 856         struct {
 857                 int32_t exclusive_open;
 858                 int32_t level_II_open;
 859                 struct kernel_oplocks *kernel_ops;
 860         } oplocks;
 861
 862         struct {
 863                 struct notify_mid_map *notify_mid_maps;
 864
 865                 struct {
 866                         /* dlink list we store pending lock records on. */
 867                         struct blocking_lock_record *blocking_lock_queue;
 868                         /* dlink list we move cancelled lock records onto. */
 869                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 870
 871                         /* The event that makes us process our blocking lock queue */
 872                         struct tevent_timer *brl_timeout;
 873
 874                         bool blocking_lock_unlock_state;
 875                         bool blocking_lock_cancel_state;
 876                 } locks;
 877         } smb1;
 878         struct {
 879                 struct {
 880                         /* The event that makes us process our blocking lock queue */
 881                         struct tevent_timer *brl_timeout;
 882                         bool blocking_lock_unlock_state;
 883                 } locks;
 884         } smb2;
 885
 886         /*
 887          * Link into libasys for asynchronous operations
 888          */
 889         struct asys_context *asys_ctx;
 890         struct tevent_fd *asys_fde;
 891
 892         struct smbXsrv_client *client;
 893 };
 894
 895 extern struct smbXsrv_client *global_smbXsrv_client;
 896
 897 void smbd_init_globals(void);