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