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 #ifdef USE_DMAPI
  26 struct smbd_dmapi_context;
  27 extern struct smbd_dmapi_context *dmapi_ctx;
  28 #endif
  29
  30 /* how many write cache buffers have been allocated */
  31 extern unsigned int allocated_write_caches;
  32
  33 /* A singleton cache to speed up searching by dev/inode. */
  34 struct fsp_singleton_cache {
  35         files_struct *fsp;
  36         struct file_id id;
  37 };
  38
  39 extern const struct mangle_fns *mangle_fns;
  40
  41 extern unsigned char *chartest;
  42 struct tdb_context;
  43 extern struct tdb_context *tdb_mangled_cache;
  44
  45 /*
  46   this determines how many characters are used from the original filename
  47   in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
  48   The largest possible value is 6.
  49 */
  50 extern unsigned mangle_prefix;
  51
  52 struct msg_state;
  53
  54 extern bool logged_ioctl_message;
  55
  56 extern int trans_num;
  57
  58 extern time_t last_smb_conf_reload_time;
  59 extern time_t last_printer_reload_time;
  60 extern pid_t background_lpq_updater_pid;
  61
  62 /****************************************************************************
  63  structure to hold a linked list of queued messages.
  64  for processing.
  65 ****************************************************************************/
  66 extern uint32_t common_flags2;
  67
  68 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
  69 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
  70
  71 struct sec_ctx {
  72         struct security_unix_token ut;
  73         struct security_token *token;
  74 };
  75 /* A stack of security contexts.  We include the current context as being
  76    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
  77 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
  78 extern int sec_ctx_stack_ndx;
  79 extern bool become_uid_done;
  80 extern bool become_gid_done;
  81
  82 extern connection_struct *last_conn;
  83 extern uint16_t last_flags;
  84
  85 extern uint32_t global_client_caps;
  86
  87 extern uint16_t fnf_handle;
  88
  89 struct conn_ctx {
  90         connection_struct *conn;
  91         uint64_t vuid;
  92 };
  93 /* A stack of current_user connection contexts. */
  94 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  95 extern int conn_ctx_stack_ndx;
  96
  97 struct vfs_init_function_entry;
  98 extern struct vfs_init_function_entry *backends;
  99 extern char *sparse_buf;
 100 extern char *LastDir;
 101
 102 struct smbd_parent_context;
 103 extern struct smbd_parent_context *am_parent;
 104 extern struct memcache *smbd_memcache_ctx;
 105 extern bool exit_firsttime;
 106
 107 struct tstream_context;
 108 struct smbd_smb2_request;
 109
 110 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 111
 112 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 113 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 114
 115 NTSTATUS smbd_do_locking(struct smb_request *req,
 116                          files_struct *fsp,
 117                          uint8_t type,
 118                          int32_t timeout,
 119                          uint16_t num_locks,
 120                          struct smbd_lock_element *locks,
 121                          bool *async);
 122 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 123                            files_struct *fsp,
 124                            uint16_t num_ulocks,
 125                            struct smbd_lock_element *ulocks);
 126
 127 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 128                                TALLOC_CTX *mem_ctx,
 129                                uint16_t info_level,
 130                                files_struct *fsp,
 131                                struct smb_filename *smb_fname,
 132                                bool delete_pending,
 133                                struct timespec write_time_ts,
 134                                struct ea_list *ea_list,
 135                                int lock_data_count,
 136                                char *lock_data,
 137                                uint16_t flags2,
 138                                unsigned int max_data_bytes,
 139                                size_t *fixed_portion,
 140                                char **ppdata,
 141                                unsigned int *pdata_size);
 142
 143 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 144                                 struct smb_request *req,
 145                                 TALLOC_CTX *mem_ctx,
 146                                 uint16_t info_level,
 147                                 files_struct *fsp,
 148                                 struct smb_filename *smb_fname,
 149                                 char **ppdata, int total_data,
 150                                 int *ret_data_size);
 151
 152 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 153                          connection_struct *conn,
 154                          TALLOC_CTX *mem_ctx,
 155                          uint16_t info_level,
 156                          uint16_t flags2,
 157                          unsigned int max_data_bytes,
 158                          size_t *fixed_portion,
 159                          struct smb_filename *smb_fname,
 160                          char **ppdata,
 161                          int *ret_data_len);
 162
 163 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 164                            struct dptr_struct *dirptr,
 165                            const char *mask,
 166                            uint32_t dirtype,
 167                            bool dont_descend,
 168                            bool ask_sharemode,
 169                            bool (*match_fn)(TALLOC_CTX *ctx,
 170                                             void *private_data,
 171                                             const char *dname,
 172                                             const char *mask,
 173                                             char **_fname),
 174                            bool (*mode_fn)(TALLOC_CTX *ctx,
 175                                            void *private_data,
 176                                            struct smb_filename *smb_fname,
 177                                            uint32_t *_mode),
 178                            void *private_data,
 179                            char **_fname,
 180                            struct smb_filename **_smb_fname,
 181                            uint32_t *_mode,
 182                            long *_prev_offset);
 183
 184 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 185                                connection_struct *conn,
 186                                struct dptr_struct *dirptr,
 187                                uint16_t flags2,
 188                                const char *path_mask,
 189                                uint32_t dirtype,
 190                                int info_level,
 191                                int requires_resume_key,
 192                                bool dont_descend,
 193                                bool ask_sharemode,
 194                                uint8_t align,
 195                                bool do_pad,
 196                                char **ppdata,
 197                                char *base_data,
 198                                char *end_data,
 199                                int space_remaining,
 200                                bool *got_exact_match,
 201                                int *_last_entry_off,
 202                                struct ea_list *name_list);
 203
 204 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 205                                     const struct smb_filename *smb_fname,
 206                                     bool use_privs,
 207                                     uint32_t access_mask,
 208                                     uint32_t *access_mask_out);
 209
 210 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 211
 212 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 213                                          const char *reason,
 214                                          const char *location);
 215 #define smbd_server_connection_terminate(xconn, reason) \
 216         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 217
 218 const char *smb2_opcode_name(uint16_t opcode);
 219 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 220
 221 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 222                              struct smbXsrv_connection **_xconn);
 223
 224 void reply_smb2002(struct smb_request *req, uint16_t choice);
 225 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 226 void smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 227                                uint64_t expected_seq_low,
 228                                const uint8_t *inpdu, size_t size);
 229
 230 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 231
 232 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 233                                     NTSTATUS status,
 234                                     DATA_BLOB *info,
 235                                     const char *location);
 236 #define smbd_smb2_request_error(req, status) \
 237         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 238 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 239                                    NTSTATUS status,
 240                                    DATA_BLOB body, DATA_BLOB *dyn,
 241                                    const char *location);
 242 #define smbd_smb2_request_done(req, body, dyn) \
 243         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 244
 245 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
 246                                      struct smbXsrv_session *session,
 247                                      struct smbXsrv_tcon *tcon,
 248                                      struct smbXsrv_open *op,
 249                                      uint8_t oplock_level);
 250 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,
 251                                     uint16_t new_epoch,
 252                                     uint32_t lease_flags,
 253                                     struct smb2_lease_key *lease_key,
 254                                     uint32_t current_lease_state,
 255                                     uint32_t new_lease_state);
 256
 257 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 258                                          struct tevent_req *subreq,
 259                                          uint32_t defer_time);
 260
 261 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 262 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 263 void remove_smb2_chained_fsp(files_struct *fsp);
 264
 265 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 266                                                uint32_t data_length);
 267
 268 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 269                                         size_t expected_body_size);
 270
 271 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 272                                                      const int dialect_count,
 273                                                      uint16_t *dialect);
 274 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 275 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 276 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 277 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 278 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 279 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 280 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 281 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 282 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 283 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 284 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 285 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 286 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 287                                     int err);
 288 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 289 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 290 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 291 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 292 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 293 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 294 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 295 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 296 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 297 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 298                                 struct tevent_immediate *im,
 299                                 void *private_data);
 300
 301 struct deferred_open_record;
 302
 303 /* SMB1 -> SMB2 glue. */
 304 void send_break_message_smb2(files_struct *fsp,
 305                              uint32_t break_from,
 306                              uint32_t break_to);
 307 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 308 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 309                                 struct smb_request *req,
 310                                 files_struct *fsp,
 311                                 int lock_timeout,
 312                                 int lock_num,
 313                                 uint64_t smblctx,
 314                                 enum brl_type lock_type,
 315                                 enum brl_flavour lock_flav,
 316                                 uint64_t offset,
 317                                 uint64_t count,
 318                                 uint64_t blocking_smblctx);
 319 void process_blocking_lock_queue_smb2(
 320         struct smbd_server_connection *sconn, struct timeval tv_curr);
 321 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 322                         struct byte_range_lock *br_lck,
 323                         enum file_close_type close_type);
 324 /* From smbd/smb2_create.c */
 325 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 326 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 327                         struct timeval *p_request_time,
 328                         struct deferred_open_record **open_rec);
 329 bool open_was_deferred_smb2(
 330         struct smbXsrv_connection *xconn, uint64_t mid);
 331 void remove_deferred_open_message_smb2(
 332         struct smbXsrv_connection *xconn, uint64_t mid);
 333 bool schedule_deferred_open_message_smb2(
 334         struct smbXsrv_connection *xconn, uint64_t mid);
 335 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 336                                 struct timeval request_time,
 337                                 struct timeval timeout,
 338                                 struct file_id id,
 339                                 struct deferred_open_record *open_rec);
 340
 341 struct smbXsrv_client;
 342
 343 struct smbXsrv_preauth {
 344         uint8_t sha512_value[64];
 345 };
 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 smbXsrv_preauth preauth;
 520
 521                 struct smbd_smb2_request *requests;
 522         } smb2;
 523 };
 524
 525 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 526
 527 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 528 uint32_t smbXsrv_version_global_current(void);
 529
 530 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 531                                         enum protocol_types protocol);
 532
 533 NTSTATUS smbXsrv_session_global_init(void);
 534 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 535                                 NTTIME now,
 536                                 struct smbXsrv_session **_session);
 537 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 538                                      struct smbXsrv_connection *conn,
 539                                      struct smbXsrv_channel_global0 **_c);
 540 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 541 struct smbXsrv_channel_global0;
 542 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 543                                       const struct smbXsrv_connection *conn,
 544                                       struct smbXsrv_channel_global0 **_c);
 545 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 546                                    const struct smbXsrv_connection *conn,
 547                                    NTTIME now,
 548                                    struct smbXsrv_session_auth0 **_a);
 549 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 550                                      struct smbXsrv_connection *conn,
 551                                      NTTIME now,
 552                                      uint8_t in_flags,
 553                                      uint8_t in_security_mode,
 554                                      struct smbXsrv_session_auth0 **_a);
 555 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 556                                         struct tevent_context *ev,
 557                                         struct smbXsrv_session *session,
 558                                         struct smbd_smb2_request *current_req);
 559 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 560 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 561 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
 562 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 563 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 564                                 uint16_t vuid, NTTIME now,
 565                                 struct smbXsrv_session **session);
 566 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 567 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 568                                      uint64_t session_id, NTTIME now,
 569                                      struct smbXsrv_session **session);
 570 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 571                                        uint64_t session_id, NTTIME now,
 572                                        struct smbXsrv_session **session);
 573 struct smbXsrv_session_global0;
 574 NTSTATUS smbXsrv_session_global_traverse(
 575                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 576                         void *private_data);
 577 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 578                                         struct tevent_context *ev,
 579                                         struct smbXsrv_connection *conn,
 580                                         struct auth_session_info *session_info,
 581                                         uint64_t previous_session_id,
 582                                         uint64_t current_session_id);
 583 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 584
 585 NTSTATUS smbXsrv_tcon_global_init(void);
 586 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 587 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 588 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 589 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 590                              NTTIME now,
 591                              struct smbXsrv_tcon **_tcon);
 592 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 593                              uint16_t tree_id, NTTIME now,
 594                              struct smbXsrv_tcon **tcon);
 595 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
 596 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 597 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 598                              NTTIME now,
 599                              struct smbXsrv_tcon **_tcon);
 600 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 601                              uint32_t tree_id, NTTIME now,
 602                              struct smbXsrv_tcon **tcon);
 603 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 604 struct smbXsrv_tcon_global0;
 605 NTSTATUS smbXsrv_tcon_global_traverse(
 606                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 607                         void *private_data);
 608
 609 NTSTATUS smbXsrv_open_global_init(void);
 610 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 611                              struct auth_session_info *session_info,
 612                              NTTIME now,
 613                              struct smbXsrv_open **_open);
 614 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
 615 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 616 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 617 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 618 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 619                              uint16_t fnum, NTTIME now,
 620                              struct smbXsrv_open **_open);
 621 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 622 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 623                              uint64_t persistent_id,
 624                              uint64_t volatile_id,
 625                              NTTIME now,
 626                              struct smbXsrv_open **_open);
 627 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 628                                struct auth_session_info *session_info,
 629                                uint64_t persistent_id,
 630                                const struct GUID *create_guid,
 631                                NTTIME now,
 632                                struct smbXsrv_open **_open);
 633 struct smbXsrv_open_global0;
 634 NTSTATUS smbXsrv_open_global_traverse(
 635         int (*fn)(struct smbXsrv_open_global0 *, void *),
 636         void *private_data);
 637
 638 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 639
 640 struct smbd_smb2_send_queue {
 641         struct smbd_smb2_send_queue *prev, *next;
 642
 643         DATA_BLOB *sendfile_header;
 644         NTSTATUS *sendfile_status;
 645         struct iovec *vector;
 646         int count;
 647
 648         TALLOC_CTX *mem_ctx;
 649 };
 650
 651 struct smbd_smb2_request {
 652         struct smbd_smb2_request *prev, *next;
 653
 654         struct smbd_server_connection *sconn;
 655         struct smbXsrv_connection *xconn;
 656
 657         struct smbd_smb2_send_queue queue_entry;
 658
 659         /* the session the request operates on, maybe NULL */
 660         struct smbXsrv_session *session;
 661         uint64_t last_session_id;
 662
 663         /* the tcon the request operates on, maybe NULL */
 664         struct smbXsrv_tcon *tcon;
 665         uint32_t last_tid;
 666
 667         int current_idx;
 668         bool do_signing;
 669         /* Was the request encrypted? */
 670         bool was_encrypted;
 671         /* Should we encrypt? */
 672         bool do_encryption;
 673         struct tevent_timer *async_te;
 674         bool compound_related;
 675
 676         /*
 677          * the encryption key for the whole
 678          * compound chain
 679          */
 680         DATA_BLOB first_key;
 681         /*
 682          * the signing key for the last
 683          * request/response of a compound chain
 684          */
 685         DATA_BLOB last_key;
 686         struct smbXsrv_preauth *preauth;
 687
 688         struct timeval request_time;
 689
 690         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 691
 692         /* fake smb1 request. */
 693         struct smb_request *smb1req;
 694         struct files_struct *compat_chain_fsp;
 695
 696         /*
 697          * The sub request for async backend calls.
 698          * This is used for SMB2 Cancel.
 699          */
 700         struct tevent_req *subreq;
 701
 702 #define SMBD_SMB2_TF_IOV_OFS 0
 703 #define SMBD_SMB2_HDR_IOV_OFS 1
 704 #define SMBD_SMB2_BODY_IOV_OFS 2
 705 #define SMBD_SMB2_DYN_IOV_OFS 3
 706
 707 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 708
 709 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 710         (&req->dir.vector[(idx)+(ofs)])
 711
 712 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 713         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 714 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 715         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 716 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 717         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 718 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 719         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 720
 721 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 722 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 723 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 724 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 725 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 726 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 727 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 728 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 729 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 730 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 731
 732 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 733 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 734 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 735 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 736 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 737 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 738 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 739 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 740 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 741 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 742
 743 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 744
 745         struct {
 746                 /*
 747                  * vector[0] TRANSPORT HEADER (empty)
 748                  * .
 749                  * vector[1] SMB2_TRANSFORM (optional)
 750                  * vector[2] SMB2
 751                  * vector[3] fixed body
 752                  * vector[4] dynamic body
 753                  * .
 754                  * .
 755                  * .
 756                  * vector[5] SMB2_TRANSFORM (optional)
 757                  * vector[6] SMB2
 758                  * vector[7] fixed body
 759                  * vector[8] dynamic body
 760                  * .
 761                  * .
 762                  * .
 763                  */
 764                 struct iovec *vector;
 765                 int vector_count;
 766                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 767         } in;
 768         struct {
 769                 /* the NBT header is not allocated */
 770                 uint8_t nbt_hdr[4];
 771                 /*
 772                  * vector[0] TRANSPORT HEADER
 773                  * .
 774                  * vector[1] SMB2_TRANSFORM (optional)
 775                  * vector[2] SMB2
 776                  * vector[3] fixed body
 777                  * vector[4] dynamic body
 778                  * .
 779                  * .
 780                  * .
 781                  * vector[5] SMB2_TRANSFORM (empty)
 782                  * vector[6] SMB2
 783                  * vector[7] fixed body
 784                  * vector[8] dynamic body
 785                  * .
 786                  * .
 787                  * .
 788                  */
 789                 struct iovec *vector;
 790                 int vector_count;
 791                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 792 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 793                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 794                 uint8_t _body[0x58];
 795         } out;
 796 };
 797
 798 struct smbd_server_connection;
 799 struct user_struct;
 800
 801 struct pending_message_list;
 802 struct pending_auth_data;
 803
 804 struct user_struct {
 805         struct user_struct *next, *prev;
 806         uint64_t vuid; /* Tag for this entry. */
 807
 808         char *session_keystr; /* used by utmp and pam session code.
 809                                  TDB key string */
 810         int homes_snum;
 811
 812         struct auth_session_info *session_info;
 813
 814         struct smbXsrv_session *session;
 815 };
 816
 817 struct smbd_server_connection {
 818         const struct tsocket_address *local_address;
 819         const struct tsocket_address *remote_address;
 820         const char *remote_hostname;
 821         struct tevent_context *ev_ctx;
 822         struct messaging_context *msg_ctx;
 823         struct sys_notify_context *sys_notify_ctx;
 824         struct notify_context *notify_ctx;
 825         bool using_smb2;
 826         int trans_num;
 827
 828         size_t num_users;
 829         struct user_struct *users;
 830
 831         size_t num_connections;
 832         struct connection_struct *connections;
 833
 834         size_t num_files;
 835         struct files_struct *files;
 836
 837         int real_max_open_files;
 838         struct fsp_singleton_cache fsp_fi_cache;
 839
 840         struct pending_message_list *deferred_open_queue;
 841
 842
 843         /* open directory handles. */
 844         struct {
 845                 struct bitmap *dptr_bmap;
 846                 struct dptr_struct *dirptrs;
 847                 int dirhandles_open;
 848         } searches;
 849
 850         uint64_t num_requests;
 851
 852         /* Current number of oplocks we have outstanding. */
 853         struct {
 854                 int32_t exclusive_open;
 855                 int32_t level_II_open;
 856                 struct kernel_oplocks *kernel_ops;
 857         } oplocks;
 858
 859         struct {
 860                 struct notify_mid_map *notify_mid_maps;
 861
 862                 struct {
 863                         /* dlink list we store pending lock records on. */
 864                         struct blocking_lock_record *blocking_lock_queue;
 865                         /* dlink list we move cancelled lock records onto. */
 866                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 867
 868                         /* The event that makes us process our blocking lock queue */
 869                         struct tevent_timer *brl_timeout;
 870
 871                         bool blocking_lock_unlock_state;
 872                         bool blocking_lock_cancel_state;
 873                 } locks;
 874         } smb1;
 875         struct {
 876                 struct {
 877                         /* The event that makes us process our blocking lock queue */
 878                         struct tevent_timer *brl_timeout;
 879                         bool blocking_lock_unlock_state;
 880                 } locks;
 881         } smb2;
 882
 883         /*
 884          * Link into libasys for asynchronous operations
 885          */
 886         struct asys_context *asys_ctx;
 887         struct tevent_fd *asys_fde;
 888
 889         struct smbXsrv_client *client;
 890 };
 891
 892 extern struct smbXsrv_client *global_smbXsrv_client;
 893
 894 void smbd_init_globals(void);