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_setfsinfo(connection_struct *conn,
 144                                 struct smb_request *req,
 145                                 TALLOC_CTX *mem_ctx,
 146                                 uint16_t info_level,
 147                                 files_struct *fsp,
 148                                 const DATA_BLOB *pdata);
 149
 150 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 151                                 struct smb_request *req,
 152                                 TALLOC_CTX *mem_ctx,
 153                                 uint16_t info_level,
 154                                 files_struct *fsp,
 155                                 struct smb_filename *smb_fname,
 156                                 char **ppdata, int total_data,
 157                                 int *ret_data_size);
 158
 159 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 160                          connection_struct *conn,
 161                          TALLOC_CTX *mem_ctx,
 162                          uint16_t info_level,
 163                          uint16_t flags2,
 164                          unsigned int max_data_bytes,
 165                          size_t *fixed_portion,
 166                          struct smb_filename *smb_fname,
 167                          char **ppdata,
 168                          int *ret_data_len);
 169
 170 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 171                            struct dptr_struct *dirptr,
 172                            const char *mask,
 173                            uint32_t dirtype,
 174                            bool dont_descend,
 175                            bool ask_sharemode,
 176                            bool (*match_fn)(TALLOC_CTX *ctx,
 177                                             void *private_data,
 178                                             const char *dname,
 179                                             const char *mask,
 180                                             char **_fname),
 181                            bool (*mode_fn)(TALLOC_CTX *ctx,
 182                                            void *private_data,
 183                                            struct smb_filename *smb_fname,
 184                                            uint32_t *_mode),
 185                            void *private_data,
 186                            char **_fname,
 187                            struct smb_filename **_smb_fname,
 188                            uint32_t *_mode,
 189                            long *_prev_offset);
 190
 191 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 192                                connection_struct *conn,
 193                                struct dptr_struct *dirptr,
 194                                uint16_t flags2,
 195                                const char *path_mask,
 196                                uint32_t dirtype,
 197                                int info_level,
 198                                int requires_resume_key,
 199                                bool dont_descend,
 200                                bool ask_sharemode,
 201                                uint8_t align,
 202                                bool do_pad,
 203                                char **ppdata,
 204                                char *base_data,
 205                                char *end_data,
 206                                int space_remaining,
 207                                bool *got_exact_match,
 208                                int *_last_entry_off,
 209                                struct ea_list *name_list);
 210
 211 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 212                                     const struct smb_filename *smb_fname,
 213                                     bool use_privs,
 214                                     uint32_t access_mask,
 215                                     uint32_t *access_mask_out);
 216
 217 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 218
 219 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 220                                          const char *reason,
 221                                          const char *location);
 222 #define smbd_server_connection_terminate(xconn, reason) \
 223         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 224
 225 const char *smb2_opcode_name(uint16_t opcode);
 226 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 227
 228 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 229                              struct smbXsrv_connection **_xconn);
 230
 231 void reply_smb2002(struct smb_request *req, uint16_t choice);
 232 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 233 void smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 234                                uint64_t expected_seq_low,
 235                                const uint8_t *inpdu, size_t size);
 236
 237 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 238
 239 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 240                                     NTSTATUS status,
 241                                     DATA_BLOB *info,
 242                                     const char *location);
 243 #define smbd_smb2_request_error(req, status) \
 244         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 245 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 246                                    NTSTATUS status,
 247                                    DATA_BLOB body, DATA_BLOB *dyn,
 248                                    const char *location);
 249 #define smbd_smb2_request_done(req, body, dyn) \
 250         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 251
 252 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
 253                                      struct smbXsrv_session *session,
 254                                      struct smbXsrv_tcon *tcon,
 255                                      struct smbXsrv_open *op,
 256                                      uint8_t oplock_level);
 257 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,
 258                                     uint16_t new_epoch,
 259                                     uint32_t lease_flags,
 260                                     struct smb2_lease_key *lease_key,
 261                                     uint32_t current_lease_state,
 262                                     uint32_t new_lease_state);
 263
 264 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 265                                          struct tevent_req *subreq,
 266                                          uint32_t defer_time);
 267
 268 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 269 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 270 void remove_smb2_chained_fsp(files_struct *fsp);
 271
 272 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 273                                                uint32_t data_length);
 274
 275 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 276                                         size_t expected_body_size);
 277
 278 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 279                                                      const int dialect_count,
 280                                                      uint16_t *dialect);
 281 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 282 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 283 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 284 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 285 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 286 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 287 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 288 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 289 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 290 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 291 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 292 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 293 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 294                                     int err);
 295 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 296 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 297 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 298 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 299 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 300 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 301 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 302 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 303 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 304 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 305                                 struct tevent_immediate *im,
 306                                 void *private_data);
 307
 308 struct deferred_open_record;
 309
 310 /* SMB1 -> SMB2 glue. */
 311 void send_break_message_smb2(files_struct *fsp,
 312                              uint32_t break_from,
 313                              uint32_t break_to);
 314 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 315 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 316                                 struct smb_request *req,
 317                                 files_struct *fsp,
 318                                 int lock_timeout,
 319                                 int lock_num,
 320                                 uint64_t smblctx,
 321                                 enum brl_type lock_type,
 322                                 enum brl_flavour lock_flav,
 323                                 uint64_t offset,
 324                                 uint64_t count,
 325                                 uint64_t blocking_smblctx);
 326 void process_blocking_lock_queue_smb2(
 327         struct smbd_server_connection *sconn, struct timeval tv_curr);
 328 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 329                         struct byte_range_lock *br_lck,
 330                         enum file_close_type close_type);
 331 /* From smbd/smb2_create.c */
 332 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 333 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 334                         struct timeval *p_request_time,
 335                         struct deferred_open_record **open_rec);
 336 bool open_was_deferred_smb2(
 337         struct smbXsrv_connection *xconn, uint64_t mid);
 338 void remove_deferred_open_message_smb2(
 339         struct smbXsrv_connection *xconn, uint64_t mid);
 340 bool schedule_deferred_open_message_smb2(
 341         struct smbXsrv_connection *xconn, uint64_t mid);
 342 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 343                                 struct timeval request_time,
 344                                 struct timeval timeout,
 345                                 struct file_id id,
 346                                 struct deferred_open_record *open_rec);
 347
 348 struct smbXsrv_client;
 349
 350 struct smbXsrv_preauth {
 351         uint8_t sha512_value[64];
 352 };
 353
 354 struct smbXsrv_connection {
 355         struct smbXsrv_connection *prev, *next;
 356
 357         struct smbXsrv_client *client;
 358
 359
 360         const struct tsocket_address *local_address;
 361         const struct tsocket_address *remote_address;
 362         const char *remote_hostname;
 363
 364         struct tevent_context *ev_ctx;
 365         struct messaging_context *msg_ctx;
 366
 367         enum protocol_types protocol;
 368
 369         struct {
 370                 NTSTATUS status;
 371                 int sock;
 372                 struct tevent_fd *fde;
 373
 374                 struct {
 375                         bool got_session;
 376                 } nbt;
 377         } transport;
 378
 379         struct {
 380                 struct {
 381                         /*
 382                          * fd for the fcntl lock and process shared
 383                          * robust mutex to coordinate access to the
 384                          * client socket. When the system supports
 385                          * process shared robust mutexes, those are
 386                          * used. If not, then the fcntl lock will be
 387                          * used.
 388                          */
 389                         int socket_lock_fd;
 390 #ifdef HAVE_ROBUST_MUTEXES
 391                         pthread_mutex_t *socket_mutex;
 392 #endif
 393
 394                         /*
 395                          * fd for the trusted pipe from
 396                          * echo handler child
 397                          */
 398                         int trusted_fd;
 399
 400                         /*
 401                          * fde for the trusted_fd
 402                          */
 403                         struct tevent_fd *trusted_fde;
 404
 405                         /*
 406                          * Reference count for the fcntl lock to
 407                          * allow recursive locks.
 408                          */
 409                         int ref_count;
 410                 } echo_handler;
 411
 412                 struct {
 413                         bool encrypted_passwords;
 414                         bool spnego;
 415                         struct auth4_context *auth_context;
 416                         bool done;
 417                         /*
 418                          * Size of the data we can receive. Set by us.
 419                          * Can be modified by the max xmit parameter.
 420                          */
 421                         int max_recv;
 422                 } negprot;
 423
 424                 struct {
 425                         bool done_sesssetup;
 426                         /*
 427                          * Size of data we can send to client. Set
 428                          *  by the client for all protocols above CORE.
 429                          *  Set by us for CORE protocol.
 430                          */
 431                         int max_send;
 432                 } sessions;
 433                 struct smb_signing_state *signing_state;
 434
 435                 struct {
 436                         uint16_t client_major;
 437                         uint16_t client_minor;
 438                         uint32_t client_cap_low;
 439                         uint32_t client_cap_high;
 440                 } unix_info;
 441
 442                 struct msg_state *msg_state;
 443         } smb1;
 444         struct {
 445                 struct smbd_smb2_request_read_state {
 446                         struct smbd_smb2_request *req;
 447                         struct {
 448                                 uint8_t nbt[NBT_HDR_SIZE];
 449                                 bool done;
 450                         } hdr;
 451                         struct iovec vector;
 452                         bool doing_receivefile;
 453                         size_t min_recv_size;
 454                         size_t pktfull;
 455                         size_t pktlen;
 456                         uint8_t *pktbuf;
 457                 } request_read_state;
 458                 struct smbd_smb2_send_queue *send_queue;
 459                 size_t send_queue_len;
 460
 461                 struct {
 462                         /*
 463                          * seq_low is the lowest sequence number
 464                          * we will accept.
 465                          */
 466                         uint64_t seq_low;
 467                         /*
 468                          * seq_range is the range of credits we have
 469                          * granted from the sequence windows starting
 470                          * at seq_low.
 471                          *
 472                          * This gets incremented when new credits are
 473                          * granted and gets decremented when the
 474                          * lowest sequence number is consumed
 475                          * (when seq_low gets incremented).
 476                          */
 477                         uint16_t seq_range;
 478                         /*
 479                          * The number of credits we have currently granted
 480                          * to the client.
 481                          *
 482                          * This gets incremented when new credits are
 483                          * granted and gets decremented when any credit
 484                          * is comsumed.
 485                          *
 486                          * Note: the decrementing is different compared
 487                          *       to seq_range.
 488                          */
 489                         uint16_t granted;
 490                         /*
 491                          * The maximum number of credits we will ever
 492                          * grant to the client.
 493                          *
 494                          * Typically we will only grant 1/16th of
 495                          * max_credits.
 496                          *
 497                          * This is the "server max credits" parameter.
 498                          */
 499                         uint16_t max;
 500                         /*
 501                          * a bitmap of size max_credits
 502                          */
 503                         struct bitmap *bitmap;
 504                         bool multicredit;
 505                 } credits;
 506
 507                 bool allow_2ff;
 508                 struct {
 509                         uint32_t capabilities;
 510                         struct GUID guid;
 511                         bool guid_verified;
 512                         uint16_t security_mode;
 513                         uint16_t num_dialects;
 514                         uint16_t *dialects;
 515                 } client;
 516                 struct {
 517                         uint32_t capabilities;
 518                         struct GUID guid;
 519                         uint16_t security_mode;
 520                         uint16_t dialect;
 521                         uint32_t max_trans;
 522                         uint32_t max_read;
 523                         uint32_t max_write;
 524                         uint16_t cipher;
 525                 } server;
 526
 527                 struct smbXsrv_preauth preauth;
 528
 529                 struct smbd_smb2_request *requests;
 530         } smb2;
 531 };
 532
 533 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 534
 535 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 536 uint32_t smbXsrv_version_global_current(void);
 537
 538 struct smbXsrv_client_table;
 539 NTSTATUS smbXsrv_client_global_init(void);
 540 NTSTATUS smbXsrv_client_create(TALLOC_CTX *mem_ctx,
 541                                struct tevent_context *ev_ctx,
 542                                struct messaging_context *msg_ctx,
 543                                NTTIME now,
 544                                struct smbXsrv_client **_client);
 545 NTSTATUS smbXsrv_client_update(struct smbXsrv_client *client);
 546 NTSTATUS smbXsrv_client_remove(struct smbXsrv_client *client);
 547 NTSTATUS smb2srv_client_lookup_global(struct smbXsrv_client *client,
 548                                       struct GUID client_guid,
 549                                       TALLOC_CTX *mem_ctx,
 550                                       struct smbXsrv_client_global0 **_pass);
 551 NTSTATUS smb2srv_client_connection_pass(struct smbd_smb2_request *smb2req,
 552                                         struct smbXsrv_client_global0 *global);
 553
 554 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 555                                         enum protocol_types protocol);
 556
 557 NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx);
 558 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 559                                 NTTIME now,
 560                                 struct smbXsrv_session **_session);
 561 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 562                                      struct smbXsrv_connection *conn,
 563                                      struct smbXsrv_channel_global0 **_c);
 564 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 565 struct smbXsrv_channel_global0;
 566 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 567                                       const struct smbXsrv_connection *conn,
 568                                       struct smbXsrv_channel_global0 **_c);
 569 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 570                                    const struct smbXsrv_connection *conn,
 571                                    NTTIME now,
 572                                    struct smbXsrv_session_auth0 **_a);
 573 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 574                                      struct smbXsrv_connection *conn,
 575                                      NTTIME now,
 576                                      uint8_t in_flags,
 577                                      uint8_t in_security_mode,
 578                                      struct smbXsrv_session_auth0 **_a);
 579 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 580                                         struct tevent_context *ev,
 581                                         struct smbXsrv_session *session,
 582                                         struct smbd_smb2_request *current_req);
 583 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 584 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 585 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
 586 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 587 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 588                                 uint16_t vuid, NTTIME now,
 589                                 struct smbXsrv_session **session);
 590 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 591 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 592                                      uint64_t session_id, NTTIME now,
 593                                      struct smbXsrv_session **session);
 594 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 595                                        uint64_t session_id, NTTIME now,
 596                                        struct smbXsrv_session **session);
 597 struct smbXsrv_session_global0;
 598 NTSTATUS smbXsrv_session_global_traverse(
 599                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 600                         void *private_data);
 601 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 602                                         struct tevent_context *ev,
 603                                         struct smbXsrv_connection *conn,
 604                                         struct auth_session_info *session_info,
 605                                         uint64_t previous_session_id,
 606                                         uint64_t current_session_id);
 607 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 608
 609 NTSTATUS smbXsrv_tcon_global_init(void);
 610 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 611 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 612 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 613 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 614                              NTTIME now,
 615                              struct smbXsrv_tcon **_tcon);
 616 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 617                              uint16_t tree_id, NTTIME now,
 618                              struct smbXsrv_tcon **tcon);
 619 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
 620 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 621 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 622                              NTTIME now,
 623                              struct smbXsrv_tcon **_tcon);
 624 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 625                              uint32_t tree_id, NTTIME now,
 626                              struct smbXsrv_tcon **tcon);
 627 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 628 struct smbXsrv_tcon_global0;
 629 NTSTATUS smbXsrv_tcon_global_traverse(
 630                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 631                         void *private_data);
 632
 633 NTSTATUS smbXsrv_open_global_init(void);
 634 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 635                              struct auth_session_info *session_info,
 636                              NTTIME now,
 637                              struct smbXsrv_open **_open);
 638 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
 639 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 640 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 641 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 642 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 643                              uint16_t fnum, NTTIME now,
 644                              struct smbXsrv_open **_open);
 645 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 646 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 647                              uint64_t persistent_id,
 648                              uint64_t volatile_id,
 649                              NTTIME now,
 650                              struct smbXsrv_open **_open);
 651 NTSTATUS smb2srv_open_lookup_replay_cache(struct smbXsrv_connection *conn,
 652                                           const struct GUID *create_guid,
 653                                           NTTIME now,
 654                                           struct smbXsrv_open **_open);
 655 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 656                                struct auth_session_info *session_info,
 657                                uint64_t persistent_id,
 658                                const struct GUID *create_guid,
 659                                NTTIME now,
 660                                struct smbXsrv_open **_open);
 661 struct smbXsrv_open_global0;
 662 NTSTATUS smbXsrv_open_global_traverse(
 663         int (*fn)(struct smbXsrv_open_global0 *, void *),
 664         void *private_data);
 665
 666 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 667 bool smbXsrv_is_encrypted(uint8_t encryption_flags);
 668 bool smbXsrv_is_partially_encrypted(uint8_t encryption_flags);
 669 bool smbXsrv_set_crypto_flag(uint8_t *flags, uint8_t flag);
 670 bool smbXsrv_is_signed(uint8_t signing_flags);
 671 bool smbXsrv_is_partially_signed(uint8_t signing_flags);
 672
 673 struct smbd_smb2_send_queue {
 674         struct smbd_smb2_send_queue *prev, *next;
 675
 676         DATA_BLOB *sendfile_header;
 677         NTSTATUS *sendfile_status;
 678         struct iovec *vector;
 679         int count;
 680
 681         TALLOC_CTX *mem_ctx;
 682 };
 683
 684 struct smbd_smb2_request {
 685         struct smbd_smb2_request *prev, *next;
 686
 687         struct smbd_server_connection *sconn;
 688         struct smbXsrv_connection *xconn;
 689
 690         struct smbd_smb2_send_queue queue_entry;
 691
 692         /* the session the request operates on, maybe NULL */
 693         struct smbXsrv_session *session;
 694         uint64_t last_session_id;
 695
 696         /* the tcon the request operates on, maybe NULL */
 697         struct smbXsrv_tcon *tcon;
 698         uint32_t last_tid;
 699
 700         int current_idx;
 701         bool do_signing;
 702         /* Was the request encrypted? */
 703         bool was_encrypted;
 704         /* Should we encrypt? */
 705         bool do_encryption;
 706         struct tevent_timer *async_te;
 707         bool compound_related;
 708
 709         /*
 710          * the encryption key for the whole
 711          * compound chain
 712          */
 713         DATA_BLOB first_key;
 714         /*
 715          * the signing key for the last
 716          * request/response of a compound chain
 717          */
 718         DATA_BLOB last_key;
 719         struct smbXsrv_preauth *preauth;
 720
 721         struct timeval request_time;
 722
 723         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 724
 725         /* fake smb1 request. */
 726         struct smb_request *smb1req;
 727         struct files_struct *compat_chain_fsp;
 728
 729         /*
 730          * Keep track of whether the outstanding request counters
 731          * had been updated in dispatch, so that they need to be
 732          * adapted again in reply.
 733          */
 734         bool request_counters_updated;
 735
 736         /*
 737          * The sub request for async backend calls.
 738          * This is used for SMB2 Cancel.
 739          */
 740         struct tevent_req *subreq;
 741
 742 #define SMBD_SMB2_TF_IOV_OFS 0
 743 #define SMBD_SMB2_HDR_IOV_OFS 1
 744 #define SMBD_SMB2_BODY_IOV_OFS 2
 745 #define SMBD_SMB2_DYN_IOV_OFS 3
 746
 747 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 748
 749 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 750         (&req->dir.vector[(idx)+(ofs)])
 751
 752 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 753         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 754 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 755         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 756 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 757         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 758 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 759         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 760
 761 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 762 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 763 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 764 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 765 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 766 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 767 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 768 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 769 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 770 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 771
 772 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 773 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 774 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 775 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 776 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 777 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 778 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 779 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 780 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 781 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 782
 783 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 784
 785         struct {
 786                 /*
 787                  * vector[0] TRANSPORT HEADER (empty)
 788                  * .
 789                  * vector[1] SMB2_TRANSFORM (optional)
 790                  * vector[2] SMB2
 791                  * vector[3] fixed body
 792                  * vector[4] dynamic body
 793                  * .
 794                  * .
 795                  * .
 796                  * vector[5] SMB2_TRANSFORM (optional)
 797                  * vector[6] SMB2
 798                  * vector[7] fixed body
 799                  * vector[8] dynamic body
 800                  * .
 801                  * .
 802                  * .
 803                  */
 804                 struct iovec *vector;
 805                 int vector_count;
 806                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 807         } in;
 808         struct {
 809                 /* the NBT header is not allocated */
 810                 uint8_t nbt_hdr[4];
 811                 /*
 812                  * vector[0] TRANSPORT HEADER
 813                  * .
 814                  * vector[1] SMB2_TRANSFORM (optional)
 815                  * vector[2] SMB2
 816                  * vector[3] fixed body
 817                  * vector[4] dynamic body
 818                  * .
 819                  * .
 820                  * .
 821                  * vector[5] SMB2_TRANSFORM (empty)
 822                  * vector[6] SMB2
 823                  * vector[7] fixed body
 824                  * vector[8] dynamic body
 825                  * .
 826                  * .
 827                  * .
 828                  */
 829                 struct iovec *vector;
 830                 int vector_count;
 831                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 832 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 833                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 834                 uint8_t _body[0x58];
 835         } out;
 836 };
 837
 838 struct smbd_server_connection;
 839 struct user_struct;
 840
 841 struct pending_message_list;
 842 struct pending_auth_data;
 843
 844 struct user_struct {
 845         struct user_struct *next, *prev;
 846         uint64_t vuid; /* Tag for this entry. */
 847
 848         char *session_keystr; /* used by utmp and pam session code.
 849                                  TDB key string */
 850         int homes_snum;
 851
 852         struct auth_session_info *session_info;
 853
 854         struct smbXsrv_session *session;
 855 };
 856
 857 struct pthreadpool_tevent;
 858
 859 struct smbd_server_connection {
 860         const struct tsocket_address *local_address;
 861         const struct tsocket_address *remote_address;
 862         const char *remote_hostname;
 863         struct tevent_context *ev_ctx;
 864         struct messaging_context *msg_ctx;
 865         struct notify_context *notify_ctx;
 866         bool using_smb2;
 867         bool aapl_zero_file_id; /* Apple-specific */
 868         int trans_num;
 869
 870         size_t num_users;
 871         struct user_struct *users;
 872
 873         size_t num_connections;
 874         struct connection_struct *connections;
 875
 876         size_t num_files;
 877         struct files_struct *files;
 878
 879         int real_max_open_files;
 880         struct fsp_singleton_cache fsp_fi_cache;
 881
 882         struct pending_message_list *deferred_open_queue;
 883
 884
 885         /* open directory handles. */
 886         struct {
 887                 struct bitmap *dptr_bmap;
 888                 struct dptr_struct *dirptrs;
 889                 int dirhandles_open;
 890         } searches;
 891
 892         uint64_t num_requests;
 893
 894         /* Current number of oplocks we have outstanding. */
 895         struct {
 896                 int32_t exclusive_open;
 897                 int32_t level_II_open;
 898                 struct kernel_oplocks *kernel_ops;
 899         } oplocks;
 900
 901         struct {
 902                 struct notify_mid_map *notify_mid_maps;
 903
 904                 struct {
 905                         /* dlink list we store pending lock records on. */
 906                         struct blocking_lock_record *blocking_lock_queue;
 907                         /* dlink list we move cancelled lock records onto. */
 908                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 909
 910                         /* The event that makes us process our blocking lock queue */
 911                         struct tevent_timer *brl_timeout;
 912
 913                         bool blocking_lock_unlock_state;
 914                         bool blocking_lock_cancel_state;
 915                 } locks;
 916         } smb1;
 917         struct {
 918                 struct {
 919                         /* The event that makes us process our blocking lock queue */
 920                         struct tevent_timer *brl_timeout;
 921                         bool blocking_lock_unlock_state;
 922                 } locks;
 923         } smb2;
 924
 925         struct pthreadpool_tevent *pool;
 926
 927         struct smbXsrv_client *client;
 928 };
 929
 930 extern struct smbXsrv_client *global_smbXsrv_client;
 931
 932 void smbd_init_globals(void);