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         bool need_chdir;
  93         bool done_chdir;
  94         userdom_struct user_info;
  95 };
  96 /* A stack of current_user connection contexts. */
  97 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  98 extern int conn_ctx_stack_ndx;
  99
 100 struct vfs_init_function_entry;
 101 extern struct vfs_init_function_entry *backends;
 102 extern char *sparse_buf;
 103 extern char *LastDir;
 104
 105 struct smbd_parent_context;
 106 extern struct smbd_parent_context *am_parent;
 107 extern struct memcache *smbd_memcache_ctx;
 108 extern bool exit_firsttime;
 109
 110 struct tstream_context;
 111 struct smbd_smb2_request;
 112
 113 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 114
 115 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 116 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 117
 118 NTSTATUS smbd_do_locking(struct smb_request *req,
 119                          files_struct *fsp,
 120                          int32_t timeout,
 121                          uint16_t num_locks,
 122                          struct smbd_lock_element *locks,
 123                          bool *async);
 124 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 125                            files_struct *fsp,
 126                            uint16_t num_ulocks,
 127                            struct smbd_lock_element *ulocks,
 128                            enum brl_flavour lock_flav);
 129
 130 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 131                                TALLOC_CTX *mem_ctx,
 132                                uint16_t info_level,
 133                                files_struct *fsp,
 134                                struct smb_filename *smb_fname,
 135                                bool delete_pending,
 136                                struct timespec write_time_ts,
 137                                struct ea_list *ea_list,
 138                                int lock_data_count,
 139                                char *lock_data,
 140                                uint16_t flags2,
 141                                unsigned int max_data_bytes,
 142                                size_t *fixed_portion,
 143                                char **ppdata,
 144                                unsigned int *pdata_size);
 145
 146 NTSTATUS smbd_do_setfsinfo(connection_struct *conn,
 147                                 struct smb_request *req,
 148                                 TALLOC_CTX *mem_ctx,
 149                                 uint16_t info_level,
 150                                 files_struct *fsp,
 151                                 const DATA_BLOB *pdata);
 152
 153 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 154                                 struct smb_request *req,
 155                                 TALLOC_CTX *mem_ctx,
 156                                 uint16_t info_level,
 157                                 files_struct *fsp,
 158                                 struct smb_filename *smb_fname,
 159                                 char **ppdata, int total_data,
 160                                 int *ret_data_size);
 161
 162 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 163                          connection_struct *conn,
 164                          TALLOC_CTX *mem_ctx,
 165                          uint16_t info_level,
 166                          uint16_t flags2,
 167                          unsigned int max_data_bytes,
 168                          size_t *fixed_portion,
 169                          struct smb_filename *smb_fname,
 170                          char **ppdata,
 171                          int *ret_data_len);
 172
 173 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 174                            struct dptr_struct *dirptr,
 175                            const char *mask,
 176                            uint32_t dirtype,
 177                            bool dont_descend,
 178                            bool ask_sharemode,
 179                            bool get_dosmode,
 180                            bool (*match_fn)(TALLOC_CTX *ctx,
 181                                             void *private_data,
 182                                             const char *dname,
 183                                             const char *mask,
 184                                             char **_fname),
 185                            bool (*mode_fn)(TALLOC_CTX *ctx,
 186                                            void *private_data,
 187                                            struct smb_filename *smb_fname,
 188                                            bool get_dosmode,
 189                                            uint32_t *_mode),
 190                            void *private_data,
 191                            char **_fname,
 192                            struct smb_filename **_smb_fname,
 193                            uint32_t *_mode,
 194                            long *_prev_offset);
 195
 196 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 197                                connection_struct *conn,
 198                                struct dptr_struct *dirptr,
 199                                uint16_t flags2,
 200                                const char *path_mask,
 201                                uint32_t dirtype,
 202                                int info_level,
 203                                int requires_resume_key,
 204                                bool dont_descend,
 205                                bool ask_sharemode,
 206                                bool get_dosmode,
 207                                uint8_t align,
 208                                bool do_pad,
 209                                char **ppdata,
 210                                char *base_data,
 211                                char *end_data,
 212                                int space_remaining,
 213                                struct smb_filename **smb_fname,
 214                                bool *got_exact_match,
 215                                int *_last_entry_off,
 216                                struct ea_list *name_list,
 217                                struct file_id *file_id);
 218
 219 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 220                                     const struct smb_filename *smb_fname,
 221                                     bool use_privs,
 222                                     uint32_t access_mask,
 223                                     uint32_t *access_mask_out);
 224
 225 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 226
 227 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 228                                          const char *reason,
 229                                          const char *location);
 230 #define smbd_server_connection_terminate(xconn, reason) \
 231         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 232
 233 const char *smb2_opcode_name(uint16_t opcode);
 234 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 235 bool smbd_smb2_is_compound(const struct smbd_smb2_request *req);
 236
 237 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 238                              struct smbXsrv_connection **_xconn);
 239
 240 void reply_smb2002(struct smb_request *req, uint16_t choice);
 241 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 242 void smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 243                                uint64_t expected_seq_low,
 244                                const uint8_t *inpdu, size_t size);
 245
 246 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 247
 248 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 249                                     NTSTATUS status,
 250                                     DATA_BLOB *info,
 251                                     const char *location);
 252 #define smbd_smb2_request_error(req, status) \
 253         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 254 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 255                                    NTSTATUS status,
 256                                    DATA_BLOB body, DATA_BLOB *dyn,
 257                                    const char *location);
 258 #define smbd_smb2_request_done(req, body, dyn) \
 259         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 260
 261 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
 262                                      struct smbXsrv_session *session,
 263                                      struct smbXsrv_tcon *tcon,
 264                                      struct smbXsrv_open *op,
 265                                      uint8_t oplock_level);
 266 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,
 267                                     uint16_t new_epoch,
 268                                     uint32_t lease_flags,
 269                                     struct smb2_lease_key *lease_key,
 270                                     uint32_t current_lease_state,
 271                                     uint32_t new_lease_state);
 272
 273 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 274                                          struct tevent_req *subreq,
 275                                          uint32_t defer_time);
 276
 277 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 278 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 279 void remove_smb2_chained_fsp(files_struct *fsp);
 280
 281 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 282                                                uint32_t data_length);
 283
 284 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 285                                         size_t expected_body_size);
 286
 287 void smb2_request_set_async_internal(struct smbd_smb2_request *req,
 288                                      bool async_internal);
 289
 290 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 291                                                      const int dialect_count,
 292                                                      uint16_t *dialect);
 293 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 294 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 295 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 296 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 297 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 298 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 299 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 300 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 301 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 302 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 303 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 304 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 305 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 306                                     int err);
 307 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 308 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 309 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 310 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 311 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 312 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 313 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 314 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 315 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 316 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 317                                 struct tevent_immediate *im,
 318                                 void *private_data);
 319
 320 struct deferred_open_record;
 321
 322 /* SMB1 -> SMB2 glue. */
 323 void send_break_message_smb2(files_struct *fsp,
 324                              uint32_t break_from,
 325                              uint32_t break_to);
 326 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 327 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 328                                 struct smb_request *req,
 329                                 files_struct *fsp,
 330                                 int lock_timeout,
 331                                 int lock_num,
 332                                 uint64_t smblctx,
 333                                 enum brl_type lock_type,
 334                                 enum brl_flavour lock_flav,
 335                                 uint64_t offset,
 336                                 uint64_t count,
 337                                 uint64_t blocking_smblctx);
 338 void process_blocking_lock_queue_smb2(
 339         struct smbd_server_connection *sconn, struct timeval tv_curr);
 340 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 341                         struct byte_range_lock *br_lck,
 342                         enum file_close_type close_type);
 343 /* From smbd/smb2_create.c */
 344 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 345 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 346                         struct timeval *p_request_time,
 347                         struct deferred_open_record **open_rec);
 348 bool open_was_deferred_smb2(
 349         struct smbXsrv_connection *xconn, uint64_t mid);
 350 void remove_deferred_open_message_smb2(
 351         struct smbXsrv_connection *xconn, uint64_t mid);
 352 bool schedule_deferred_open_message_smb2(
 353         struct smbXsrv_connection *xconn, uint64_t mid);
 354 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 355                                 struct timeval request_time,
 356                                 struct timeval timeout,
 357                                 struct file_id id,
 358                                 struct deferred_open_record *open_rec);
 359
 360 struct smbXsrv_client;
 361
 362 struct smbXsrv_preauth {
 363         uint8_t sha512_value[64];
 364 };
 365
 366 struct smbXsrv_connection {
 367         struct smbXsrv_connection *prev, *next;
 368
 369         struct smbXsrv_client *client;
 370
 371         const struct tsocket_address *local_address;
 372         const struct tsocket_address *remote_address;
 373         const char *remote_hostname;
 374
 375         enum protocol_types protocol;
 376
 377         struct {
 378                 NTSTATUS status;
 379                 int sock;
 380                 struct tevent_fd *fde;
 381
 382                 struct {
 383                         bool got_session;
 384                 } nbt;
 385         } transport;
 386
 387         struct {
 388                 struct {
 389                         /*
 390                          * fd for the fcntl lock and process shared
 391                          * robust mutex to coordinate access to the
 392                          * client socket. When the system supports
 393                          * process shared robust mutexes, those are
 394                          * used. If not, then the fcntl lock will be
 395                          * used.
 396                          */
 397                         int socket_lock_fd;
 398 #ifdef HAVE_ROBUST_MUTEXES
 399                         pthread_mutex_t *socket_mutex;
 400 #endif
 401
 402                         /*
 403                          * fd for the trusted pipe from
 404                          * echo handler child
 405                          */
 406                         int trusted_fd;
 407
 408                         /*
 409                          * fde for the trusted_fd
 410                          */
 411                         struct tevent_fd *trusted_fde;
 412
 413                         /*
 414                          * Reference count for the fcntl lock to
 415                          * allow recursive locks.
 416                          */
 417                         int ref_count;
 418                 } echo_handler;
 419
 420                 struct {
 421                         bool encrypted_passwords;
 422                         bool spnego;
 423                         struct auth4_context *auth_context;
 424                         bool done;
 425                         /*
 426                          * Size of the data we can receive. Set by us.
 427                          * Can be modified by the max xmit parameter.
 428                          */
 429                         int max_recv;
 430                 } negprot;
 431
 432                 struct {
 433                         bool done_sesssetup;
 434                         /*
 435                          * Size of data we can send to client. Set
 436                          *  by the client for all protocols above CORE.
 437                          *  Set by us for CORE protocol.
 438                          */
 439                         int max_send;
 440                 } sessions;
 441                 struct smb_signing_state *signing_state;
 442
 443                 struct {
 444                         uint16_t client_major;
 445                         uint16_t client_minor;
 446                         uint32_t client_cap_low;
 447                         uint32_t client_cap_high;
 448                 } unix_info;
 449
 450                 struct msg_state *msg_state;
 451         } smb1;
 452         struct {
 453                 struct smbd_smb2_request_read_state {
 454                         struct smbd_smb2_request *req;
 455                         struct {
 456                                 uint8_t nbt[NBT_HDR_SIZE];
 457                                 bool done;
 458                         } hdr;
 459                         struct iovec vector;
 460                         bool doing_receivefile;
 461                         size_t min_recv_size;
 462                         size_t pktfull;
 463                         size_t pktlen;
 464                         uint8_t *pktbuf;
 465                 } request_read_state;
 466                 struct smbd_smb2_send_queue *send_queue;
 467                 size_t send_queue_len;
 468
 469                 struct {
 470                         /*
 471                          * seq_low is the lowest sequence number
 472                          * we will accept.
 473                          */
 474                         uint64_t seq_low;
 475                         /*
 476                          * seq_range is the range of credits we have
 477                          * granted from the sequence windows starting
 478                          * at seq_low.
 479                          *
 480                          * This gets incremented when new credits are
 481                          * granted and gets decremented when the
 482                          * lowest sequence number is consumed
 483                          * (when seq_low gets incremented).
 484                          */
 485                         uint16_t seq_range;
 486                         /*
 487                          * The number of credits we have currently granted
 488                          * to the client.
 489                          *
 490                          * This gets incremented when new credits are
 491                          * granted and gets decremented when any credit
 492                          * is comsumed.
 493                          *
 494                          * Note: the decrementing is different compared
 495                          *       to seq_range.
 496                          */
 497                         uint16_t granted;
 498                         /*
 499                          * The maximum number of credits we will ever
 500                          * grant to the client.
 501                          *
 502                          * Typically we will only grant 1/16th of
 503                          * max_credits.
 504                          *
 505                          * This is the "server max credits" parameter.
 506                          */
 507                         uint16_t max;
 508                         /*
 509                          * a bitmap of size max_credits
 510                          */
 511                         struct bitmap *bitmap;
 512                         bool multicredit;
 513                 } credits;
 514
 515                 bool allow_2ff;
 516                 struct {
 517                         uint32_t capabilities;
 518                         struct GUID guid;
 519                         bool guid_verified;
 520                         uint16_t security_mode;
 521                         uint16_t num_dialects;
 522                         uint16_t *dialects;
 523                 } client;
 524                 struct {
 525                         uint32_t capabilities;
 526                         struct GUID guid;
 527                         uint16_t security_mode;
 528                         uint16_t dialect;
 529                         uint32_t max_trans;
 530                         uint32_t max_read;
 531                         uint32_t max_write;
 532                         uint16_t cipher;
 533                 } server;
 534
 535                 struct smbXsrv_preauth preauth;
 536
 537                 struct smbd_smb2_request *requests;
 538         } smb2;
 539 };
 540
 541 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 542
 543 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 544 uint32_t smbXsrv_version_global_current(void);
 545
 546 struct smbXsrv_client_table;
 547 NTSTATUS smbXsrv_client_global_init(void);
 548 NTSTATUS smbXsrv_client_create(TALLOC_CTX *mem_ctx,
 549                                struct tevent_context *ev_ctx,
 550                                struct messaging_context *msg_ctx,
 551                                NTTIME now,
 552                                struct smbXsrv_client **_client);
 553 NTSTATUS smbXsrv_client_update(struct smbXsrv_client *client);
 554 NTSTATUS smbXsrv_client_remove(struct smbXsrv_client *client);
 555 NTSTATUS smb2srv_client_lookup_global(struct smbXsrv_client *client,
 556                                       struct GUID client_guid,
 557                                       TALLOC_CTX *mem_ctx,
 558                                       struct smbXsrv_client_global0 **_pass);
 559 NTSTATUS smb2srv_client_connection_pass(struct smbd_smb2_request *smb2req,
 560                                         struct smbXsrv_client_global0 *global);
 561
 562 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 563                                         enum protocol_types protocol);
 564
 565 NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx);
 566 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 567                                 NTTIME now,
 568                                 struct smbXsrv_session **_session);
 569 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 570                                      struct smbXsrv_connection *conn,
 571                                      struct smbXsrv_channel_global0 **_c);
 572 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 573 struct smbXsrv_channel_global0;
 574 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 575                                       const struct smbXsrv_connection *conn,
 576                                       struct smbXsrv_channel_global0 **_c);
 577 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 578                                    const struct smbXsrv_connection *conn,
 579                                    NTTIME now,
 580                                    struct smbXsrv_session_auth0 **_a);
 581 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 582                                      struct smbXsrv_connection *conn,
 583                                      NTTIME now,
 584                                      uint8_t in_flags,
 585                                      uint8_t in_security_mode,
 586                                      struct smbXsrv_session_auth0 **_a);
 587 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 588                                         struct tevent_context *ev,
 589                                         struct smbXsrv_session *session,
 590                                         struct smbd_smb2_request *current_req);
 591 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 592 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 593 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client);
 594 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 595 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 596                                 uint16_t vuid, NTTIME now,
 597                                 struct smbXsrv_session **session);
 598 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 599 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 600                                      uint64_t session_id, NTTIME now,
 601                                      struct smbXsrv_session **session);
 602 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 603                                        uint64_t session_id, NTTIME now,
 604                                        struct smbXsrv_session **session);
 605 struct smbXsrv_session_global0;
 606 NTSTATUS smbXsrv_session_global_traverse(
 607                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 608                         void *private_data);
 609 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 610                                         struct tevent_context *ev,
 611                                         struct smbXsrv_connection *conn,
 612                                         struct auth_session_info *session_info,
 613                                         uint64_t previous_session_id,
 614                                         uint64_t current_session_id);
 615 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 616
 617 NTSTATUS smbXsrv_tcon_global_init(void);
 618 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 619 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 620 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 621 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 622                              NTTIME now,
 623                              struct smbXsrv_tcon **_tcon);
 624 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 625                              uint16_t tree_id, NTTIME now,
 626                              struct smbXsrv_tcon **tcon);
 627 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client);
 628 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 629 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 630                              NTTIME now,
 631                              struct smbXsrv_tcon **_tcon);
 632 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 633                              uint32_t tree_id, NTTIME now,
 634                              struct smbXsrv_tcon **tcon);
 635 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 636 struct smbXsrv_tcon_global0;
 637 NTSTATUS smbXsrv_tcon_global_traverse(
 638                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 639                         void *private_data);
 640
 641 NTSTATUS smbXsrv_open_global_init(void);
 642 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 643                              struct auth_session_info *session_info,
 644                              NTTIME now,
 645                              struct smbXsrv_open **_open);
 646 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
 647 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 648 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 649 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 650 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 651                              uint16_t fnum, NTTIME now,
 652                              struct smbXsrv_open **_open);
 653 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 654 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 655                              uint64_t persistent_id,
 656                              uint64_t volatile_id,
 657                              NTTIME now,
 658                              struct smbXsrv_open **_open);
 659 NTSTATUS smb2srv_open_lookup_replay_cache(struct smbXsrv_connection *conn,
 660                                           const struct GUID *create_guid,
 661                                           NTTIME now,
 662                                           struct smbXsrv_open **_open);
 663 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 664                                struct auth_session_info *session_info,
 665                                uint64_t persistent_id,
 666                                const struct GUID *create_guid,
 667                                NTTIME now,
 668                                struct smbXsrv_open **_open);
 669 struct smbXsrv_open_global0;
 670 NTSTATUS smbXsrv_open_global_traverse(
 671         int (*fn)(struct smbXsrv_open_global0 *, void *),
 672         void *private_data);
 673
 674 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 675 bool smbXsrv_is_encrypted(uint8_t encryption_flags);
 676 bool smbXsrv_is_partially_encrypted(uint8_t encryption_flags);
 677 bool smbXsrv_set_crypto_flag(uint8_t *flags, uint8_t flag);
 678 bool smbXsrv_is_signed(uint8_t signing_flags);
 679 bool smbXsrv_is_partially_signed(uint8_t signing_flags);
 680
 681 struct smbd_smb2_send_queue {
 682         struct smbd_smb2_send_queue *prev, *next;
 683
 684         DATA_BLOB *sendfile_header;
 685         NTSTATUS *sendfile_status;
 686         struct iovec *vector;
 687         int count;
 688
 689         TALLOC_CTX *mem_ctx;
 690 };
 691
 692 struct smbd_smb2_request {
 693         struct smbd_smb2_request *prev, *next;
 694
 695         struct smbd_server_connection *sconn;
 696         struct smbXsrv_connection *xconn;
 697
 698         struct smbd_smb2_send_queue queue_entry;
 699
 700         /* the session the request operates on, maybe NULL */
 701         struct smbXsrv_session *session;
 702         uint64_t last_session_id;
 703
 704         /* the tcon the request operates on, maybe NULL */
 705         struct smbXsrv_tcon *tcon;
 706         uint32_t last_tid;
 707
 708         int current_idx;
 709         bool do_signing;
 710         /* Was the request encrypted? */
 711         bool was_encrypted;
 712         /* Should we encrypt? */
 713         bool do_encryption;
 714         struct tevent_timer *async_te;
 715         bool compound_related;
 716
 717         /*
 718          * Give the implementation of an SMB2 req a way to tell the SMB2 request
 719          * processing engine that the internal request is going async, while
 720          * preserving synchronous SMB2 behaviour.
 721          */
 722         bool async_internal;
 723
 724         /*
 725          * the encryption key for the whole
 726          * compound chain
 727          */
 728         DATA_BLOB first_key;
 729         /*
 730          * the signing key for the last
 731          * request/response of a compound chain
 732          */
 733         DATA_BLOB last_key;
 734         struct smbXsrv_preauth *preauth;
 735
 736         struct timeval request_time;
 737
 738         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 739
 740         /* fake smb1 request. */
 741         struct smb_request *smb1req;
 742         struct files_struct *compat_chain_fsp;
 743
 744         /*
 745          * Keep track of whether the outstanding request counters
 746          * had been updated in dispatch, so that they need to be
 747          * adapted again in reply.
 748          */
 749         bool request_counters_updated;
 750         uint64_t channel_generation;
 751
 752         /*
 753          * The sub request for async backend calls.
 754          * This is used for SMB2 Cancel.
 755          */
 756         struct tevent_req *subreq;
 757
 758 #define SMBD_SMB2_TF_IOV_OFS 0
 759 #define SMBD_SMB2_HDR_IOV_OFS 1
 760 #define SMBD_SMB2_BODY_IOV_OFS 2
 761 #define SMBD_SMB2_DYN_IOV_OFS 3
 762
 763 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 764
 765 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 766         (&req->dir.vector[(idx)+(ofs)])
 767
 768 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 769         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 770 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 771         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 772 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 773         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 774 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 775         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 776
 777 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 778 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 779 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 780 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 781 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 782 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 783 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 784 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 785 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 786 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 787
 788 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 789 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 790 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 791 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 792 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 793 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 794 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 795 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 796 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 797 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 798
 799 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 800
 801         struct {
 802                 /*
 803                  * vector[0] TRANSPORT HEADER (empty)
 804                  * .
 805                  * vector[1] SMB2_TRANSFORM (optional)
 806                  * vector[2] SMB2
 807                  * vector[3] fixed body
 808                  * vector[4] dynamic body
 809                  * .
 810                  * .
 811                  * .
 812                  * vector[5] SMB2_TRANSFORM (optional)
 813                  * vector[6] SMB2
 814                  * vector[7] fixed body
 815                  * vector[8] dynamic body
 816                  * .
 817                  * .
 818                  * .
 819                  */
 820                 struct iovec *vector;
 821                 int vector_count;
 822                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 823         } in;
 824         struct {
 825                 /* the NBT header is not allocated */
 826                 uint8_t nbt_hdr[4];
 827                 /*
 828                  * vector[0] TRANSPORT HEADER
 829                  * .
 830                  * vector[1] SMB2_TRANSFORM (optional)
 831                  * vector[2] SMB2
 832                  * vector[3] fixed body
 833                  * vector[4] dynamic body
 834                  * .
 835                  * .
 836                  * .
 837                  * vector[5] SMB2_TRANSFORM (empty)
 838                  * vector[6] SMB2
 839                  * vector[7] fixed body
 840                  * vector[8] dynamic body
 841                  * .
 842                  * .
 843                  * .
 844                  */
 845                 struct iovec *vector;
 846                 int vector_count;
 847                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 848 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 849                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 850                 uint8_t _body[0x58];
 851         } out;
 852 };
 853
 854 struct smbd_server_connection;
 855 struct user_struct;
 856
 857 struct pending_message_list;
 858 struct pending_auth_data;
 859
 860 struct user_struct {
 861         struct user_struct *next, *prev;
 862         uint64_t vuid; /* Tag for this entry. */
 863
 864         char *session_keystr; /* used by utmp and pam session code.
 865                                  TDB key string */
 866         int homes_snum;
 867
 868         struct auth_session_info *session_info;
 869
 870         struct smbXsrv_session *session;
 871 };
 872
 873 struct pthreadpool_tevent;
 874
 875 struct smbd_server_connection {
 876         const struct tsocket_address *local_address;
 877         const struct tsocket_address *remote_address;
 878         const char *remote_hostname;
 879         struct tevent_context *ev_ctx;
 880         struct messaging_context *msg_ctx;
 881         struct notify_context *notify_ctx;
 882         bool using_smb2;
 883         bool aapl_zero_file_id; /* Apple-specific */
 884         int trans_num;
 885
 886         size_t num_users;
 887         struct user_struct *users;
 888
 889         size_t num_connections;
 890         struct connection_struct *connections;
 891
 892         size_t num_files;
 893         struct files_struct *files;
 894
 895         int real_max_open_files;
 896         struct fsp_singleton_cache fsp_fi_cache;
 897
 898         struct pending_message_list *deferred_open_queue;
 899
 900
 901         /* open directory handles. */
 902         struct {
 903                 struct bitmap *dptr_bmap;
 904                 struct dptr_struct *dirptrs;
 905                 int dirhandles_open;
 906         } searches;
 907
 908         uint64_t num_requests;
 909
 910         /* Current number of oplocks we have outstanding. */
 911         struct {
 912                 int32_t exclusive_open;
 913                 int32_t level_II_open;
 914                 struct kernel_oplocks *kernel_ops;
 915         } oplocks;
 916
 917         struct {
 918                 struct notify_mid_map *notify_mid_maps;
 919
 920                 struct {
 921                         /* dlink list we store pending lock records on. */
 922                         struct blocking_lock_record *blocking_lock_queue;
 923                         /* dlink list we move cancelled lock records onto. */
 924                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 925
 926                         /* The event that makes us process our blocking lock queue */
 927                         struct tevent_timer *brl_timeout;
 928
 929                         bool blocking_lock_unlock_state;
 930                         bool blocking_lock_cancel_state;
 931                 } locks;
 932         } smb1;
 933         struct {
 934                 struct {
 935                         /* The event that makes us process our blocking lock queue */
 936                         struct tevent_timer *brl_timeout;
 937                         bool blocking_lock_unlock_state;
 938                 } locks;
 939         } smb2;
 940
 941         struct pthreadpool_tevent *pool;
 942
 943         struct smbXsrv_client *client;
 944 };
 945
 946 extern struct smbXsrv_client *global_smbXsrv_client;
 947
 948 void smbd_init_globals(void);