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