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 #ifndef _SOURCE3_SMBD_GLOBALS_H_
  22 #define _SOURCE3_SMBD_GLOBALS_H_
  23
  24 #include "system/select.h"
  25 #include "librpc/gen_ndr/smbXsrv.h"
  26 #include "smbprofile.h"
  27
  28 #ifdef USE_DMAPI
  29 struct smbd_dmapi_context;
  30 extern struct smbd_dmapi_context *dmapi_ctx;
  31 #endif
  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 uint32_t global_client_caps;
  83
  84 extern uint16_t fnf_handle;
  85
  86 struct conn_ctx {
  87         connection_struct *conn;
  88         uint64_t vuid;
  89         userdom_struct user_info;
  90 };
  91 /* A stack of current_user connection contexts. */
  92 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  93 extern int conn_ctx_stack_ndx;
  94
  95 struct vfs_init_function_entry;
  96 extern struct vfs_init_function_entry *backends;
  97 extern char *sparse_buf;
  98 extern char *LastDir;
  99
 100 struct smbd_parent_context;
 101 extern struct smbd_parent_context *am_parent;
 102 extern struct memcache *smbd_memcache_ctx;
 103 extern bool exit_firsttime;
 104
 105 struct tstream_context;
 106 struct smbd_smb2_request;
 107
 108 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 109
 110 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 111 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 112
 113 struct GUID smbd_request_guid(struct smb_request *smb1req, uint16_t idx);
 114
 115 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 116                            files_struct *fsp,
 117                            uint16_t num_ulocks,
 118                            struct smbd_lock_element *ulocks);
 119
 120 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 121                                TALLOC_CTX *mem_ctx,
 122                                struct smb_request *req,
 123                                uint16_t info_level,
 124                                files_struct *fsp,
 125                                struct smb_filename *smb_fname,
 126                                bool delete_pending,
 127                                struct timespec write_time_ts,
 128                                struct ea_list *ea_list,
 129                                int lock_data_count,
 130                                char *lock_data,
 131                                uint16_t flags2,
 132                                unsigned int max_data_bytes,
 133                                size_t *fixed_portion,
 134                                char **ppdata,
 135                                unsigned int *pdata_size);
 136
 137 NTSTATUS smbd_do_setfsinfo(connection_struct *conn,
 138                                 struct smb_request *req,
 139                                 TALLOC_CTX *mem_ctx,
 140                                 uint16_t info_level,
 141                                 files_struct *fsp,
 142                                 const DATA_BLOB *pdata);
 143
 144 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 145                                 struct smb_request *req,
 146                                 TALLOC_CTX *mem_ctx,
 147                                 uint16_t info_level,
 148                                 files_struct *fsp,
 149                                 struct smb_filename *smb_fname,
 150                                 char **ppdata, int total_data,
 151                                 int *ret_data_size);
 152
 153 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 154                          connection_struct *conn,
 155                          TALLOC_CTX *mem_ctx,
 156                          uint16_t info_level,
 157                          uint16_t flags2,
 158                          unsigned int max_data_bytes,
 159                          size_t *fixed_portion,
 160                          struct smb_filename *smb_fname,
 161                          char **ppdata,
 162                          int *ret_data_len);
 163
 164 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 165                            struct dptr_struct *dirptr,
 166                            const char *mask,
 167                            uint32_t dirtype,
 168                            bool dont_descend,
 169                            bool ask_sharemode,
 170                            bool get_dosmode,
 171                            bool (*match_fn)(TALLOC_CTX *ctx,
 172                                             void *private_data,
 173                                             const char *dname,
 174                                             const char *mask,
 175                                             char **_fname),
 176                            bool (*mode_fn)(TALLOC_CTX *ctx,
 177                                            void *private_data,
 178                                            struct files_struct *dirfsp,
 179                                            struct smb_filename *atname,
 180                                            struct smb_filename *smb_fname,
 181                                            bool get_dosmode,
 182                                            uint32_t *_mode),
 183                            void *private_data,
 184                            char **_fname,
 185                            struct smb_filename **_smb_fname,
 186                            uint32_t *_mode,
 187                            long *_prev_offset);
 188
 189 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 190                                connection_struct *conn,
 191                                struct dptr_struct *dirptr,
 192                                uint16_t flags2,
 193                                const char *path_mask,
 194                                uint32_t dirtype,
 195                                int info_level,
 196                                int requires_resume_key,
 197                                bool dont_descend,
 198                                bool ask_sharemode,
 199                                bool get_dosmode,
 200                                uint8_t align,
 201                                bool do_pad,
 202                                char **ppdata,
 203                                char *base_data,
 204                                char *end_data,
 205                                int space_remaining,
 206                                struct smb_filename **smb_fname,
 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_fsp(struct files_struct *dirsfp,
 213                         struct files_struct *fsp,
 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 smbXsrv_connection_disconnect_transport(struct smbXsrv_connection *xconn,
 221                                              NTSTATUS status);
 222 size_t smbXsrv_client_valid_connections(struct smbXsrv_client *client);
 223 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 224                                          const char *reason,
 225                                          const char *location);
 226 #define smbd_server_connection_terminate(xconn, reason) \
 227         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 228
 229 void smbd_server_disconnect_client_ex(struct smbXsrv_client *client,
 230                                       const char *reason,
 231                                       const char *location);
 232 #define smbd_server_disconnect_client(__client, __reason) \
 233         smbd_server_disconnect_client_ex(__client, __reason, __location__)
 234
 235 const char *smb2_opcode_name(uint16_t opcode);
 236 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 237 bool smbd_smb2_is_compound(const struct smbd_smb2_request *req);
 238 bool smbd_smb2_is_last_in_compound(const struct smbd_smb2_request *req);
 239
 240 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 241                              NTTIME now, struct smbXsrv_connection **_xconn);
 242
 243 NTSTATUS reply_smb2002(struct smb_request *req, uint16_t choice);
 244 NTSTATUS reply_smb20ff(struct smb_request *req, uint16_t choice);
 245 NTSTATUS smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 246                                uint64_t expected_seq_low,
 247                                const uint8_t *inpdu, size_t size);
 248 NTSTATUS smb2_multi_protocol_reply_negprot(struct smb_request *req);
 249
 250 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 251
 252 bool smbXsrv_server_multi_channel_enabled(void);
 253
 254 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 255                                     NTSTATUS status,
 256                                     uint8_t error_context_count,
 257                                     DATA_BLOB *info,
 258                                     const char *location);
 259 #define smbd_smb2_request_error(req, status) \
 260         smbd_smb2_request_error_ex(req, status, 0, NULL, __location__)
 261 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 262                                    NTSTATUS status,
 263                                    DATA_BLOB body, DATA_BLOB *dyn,
 264                                    const char *location);
 265 #define smbd_smb2_request_done(req, body, dyn) \
 266         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 267
 268 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_client *client,
 269                                      struct smbXsrv_open *op,
 270                                      uint8_t oplock_level);
 271 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_client *client,
 272                                     uint16_t new_epoch,
 273                                     uint32_t lease_flags,
 274                                     struct smb2_lease_key *lease_key,
 275                                     uint32_t current_lease_state,
 276                                     uint32_t new_lease_state);
 277
 278 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 279                                          struct tevent_req *subreq,
 280                                          uint32_t defer_time);
 281
 282 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 283 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 284 void remove_smb2_chained_fsp(files_struct *fsp);
 285
 286 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 287                                                uint32_t data_length);
 288
 289 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 290                                         size_t expected_body_size);
 291
 292 void smb2_request_set_async_internal(struct smbd_smb2_request *req,
 293                                      bool async_internal);
 294
 295 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 296                                                      const int dialect_count,
 297                                                      uint16_t *dialect);
 298 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 299 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 300 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 301 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 302 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 303 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 304 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 305 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 306 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 307 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 308 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 309 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 310 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 311                                     int err);
 312 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 313 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 314 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 315 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 316 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 317 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 318 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 319 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 320 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 321 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 322                                 struct tevent_immediate *im,
 323                                 void *private_data);
 324
 325 struct deferred_open_record;
 326
 327 /* SMB1 -> SMB2 glue. */
 328 void send_break_message_smb2(files_struct *fsp,
 329                              uint32_t break_from,
 330                              uint32_t break_to);
 331 /* From smbd/smb2_create.c */
 332 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 333 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 334                         struct timeval *p_request_time,
 335                         struct deferred_open_record **open_rec);
 336 bool open_was_deferred_smb2(
 337         struct smbXsrv_connection *xconn, uint64_t mid);
 338 void remove_deferred_open_message_smb2(
 339         struct smbXsrv_connection *xconn, uint64_t mid);
 340 bool schedule_deferred_open_message_smb2(
 341         struct smbXsrv_connection *xconn, uint64_t mid);
 342 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 343                                 struct timeval request_time,
 344                                 struct timeval timeout,
 345                                 struct file_id id,
 346                                 struct deferred_open_record *open_rec);
 347
 348 struct smbXsrv_client;
 349
 350 struct smbXsrv_preauth {
 351         uint8_t sha512_value[64];
 352 };
 353
 354 struct smbXsrv_connection {
 355         struct smbXsrv_connection *prev, *next;
 356
 357         struct smbXsrv_client *client;
 358
 359         NTTIME connect_time;
 360         uint64_t channel_id;
 361         const struct tsocket_address *local_address;
 362         const struct tsocket_address *remote_address;
 363         const char *remote_hostname;
 364         bool has_cluster_movable_ip;
 365
 366         enum protocol_types protocol;
 367
 368         struct {
 369                 NTSTATUS status;
 370                 bool terminating;
 371                 struct tevent_queue *shutdown_wait_queue;
 372                 int sock;
 373                 struct tevent_fd *fde;
 374
 375                 struct {
 376                         bool got_session;
 377                 } nbt;
 378         } transport;
 379
 380         struct {
 381                 bool force_unacked_timeout;
 382                 uint64_t unacked_bytes;
 383                 uint32_t rto_usecs;
 384                 struct tevent_req *checker_subreq;
 385                 struct smbd_smb2_send_queue *queue;
 386         } ack;
 387
 388 #if defined(WITH_SMB1SERVER)
 389         struct {
 390                 struct {
 391                         /*
 392                          * fd for the fcntl lock and process shared
 393                          * robust mutex to coordinate access to the
 394                          * client socket. When the system supports
 395                          * process shared robust mutexes, those are
 396                          * used. If not, then the fcntl lock will be
 397                          * used.
 398                          */
 399                         int socket_lock_fd;
 400 #ifdef HAVE_ROBUST_MUTEXES
 401                         pthread_mutex_t *socket_mutex;
 402 #endif
 403
 404                         /*
 405                          * fd for the trusted pipe from
 406                          * echo handler child
 407                          */
 408                         int trusted_fd;
 409
 410                         /*
 411                          * fde for the trusted_fd
 412                          */
 413                         struct tevent_fd *trusted_fde;
 414
 415                         /*
 416                          * Reference count for the fcntl lock to
 417                          * allow recursive locks.
 418                          */
 419                         int ref_count;
 420                 } echo_handler;
 421
 422                 struct {
 423                         bool encrypted_passwords;
 424                         bool spnego;
 425                         struct auth4_context *auth_context;
 426                         bool done;
 427                         /*
 428                          * Size of the data we can receive. Set by us.
 429                          * Can be modified by the max xmit parameter.
 430                          */
 431                         int max_recv;
 432                 } negprot;
 433
 434                 struct {
 435                         bool done_sesssetup;
 436                         /*
 437                          * Size of data we can send to client. Set
 438                          *  by the client for all protocols above CORE.
 439                          *  Set by us for CORE protocol.
 440                          */
 441                         int max_send;
 442                 } sessions;
 443                 struct smb1_signing_state *signing_state;
 444
 445                 struct {
 446                         uint16_t client_major;
 447                         uint16_t client_minor;
 448                         uint32_t client_cap_low;
 449                         uint32_t client_cap_high;
 450                 } unix_info;
 451
 452                 struct msg_state *msg_state;
 453         } smb1;
 454 #endif
 455         struct {
 456                 struct smbd_smb2_request_read_state {
 457                         struct smbd_smb2_request *req;
 458                         struct {
 459                                 uint8_t nbt[NBT_HDR_SIZE];
 460                                 bool done;
 461                         } hdr;
 462                         struct iovec vector;
 463                         bool doing_receivefile;
 464                         size_t min_recv_size;
 465                         size_t pktfull;
 466                         size_t pktlen;
 467                         uint8_t *pktbuf;
 468                 } request_read_state;
 469                 struct smbd_smb2_send_queue *send_queue;
 470                 size_t send_queue_len;
 471
 472                 struct {
 473                         /*
 474                          * seq_low is the lowest sequence number
 475                          * we will accept.
 476                          */
 477                         uint64_t seq_low;
 478                         /*
 479                          * seq_range is the range of credits we have
 480                          * granted from the sequence windows starting
 481                          * at seq_low.
 482                          *
 483                          * This gets incremented when new credits are
 484                          * granted and gets decremented when the
 485                          * lowest sequence number is consumed
 486                          * (when seq_low gets incremented).
 487                          */
 488                         uint16_t seq_range;
 489                         /*
 490                          * The number of credits we have currently granted
 491                          * to the client.
 492                          *
 493                          * This gets incremented when new credits are
 494                          * granted and gets decremented when any credit
 495                          * is comsumed.
 496                          *
 497                          * Note: the decrementing is different compared
 498                          *       to seq_range.
 499                          */
 500                         uint16_t granted;
 501                         /*
 502                          * The maximum number of credits we will ever
 503                          * grant to the client.
 504                          *
 505                          * Typically we will only grant 1/16th of
 506                          * max_credits.
 507                          *
 508                          * This is the "server max credits" parameter.
 509                          */
 510                         uint16_t max;
 511                         /*
 512                          * a bitmap of size max_credits
 513                          */
 514                         struct bitmap *bitmap;
 515                         bool multicredit;
 516                 } credits;
 517
 518                 bool allow_2ff;
 519                 struct {
 520                         uint32_t capabilities;
 521                         struct GUID guid;
 522                         bool guid_verified;
 523                         uint16_t security_mode;
 524                         uint16_t num_dialects;
 525                         uint16_t *dialects;
 526                 } client;
 527                 struct {
 528                         uint32_t capabilities;
 529                         struct GUID guid;
 530                         uint16_t security_mode;
 531                         uint16_t dialect;
 532                         uint32_t max_trans;
 533                         uint32_t max_read;
 534                         uint32_t max_write;
 535                         uint16_t sign_algo;
 536                         uint16_t cipher;
 537                         bool posix_extensions_negotiated;
 538                 } server;
 539
 540                 struct smbXsrv_preauth preauth;
 541
 542                 struct smbd_smb2_request *requests;
 543
 544                 struct {
 545                         uint8_t read_body_padding;
 546                 } smbtorture;
 547
 548                 bool signing_mandatory;
 549         } smb2;
 550 };
 551
 552 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 553
 554 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 555 uint32_t smbXsrv_version_global_current(void);
 556
 557 struct smbXsrv_client_table;
 558 NTSTATUS smbXsrv_client_global_init(void);
 559 NTSTATUS smbXsrv_client_create(TALLOC_CTX *mem_ctx,
 560                                struct tevent_context *ev_ctx,
 561                                struct messaging_context *msg_ctx,
 562                                NTTIME now,
 563                                struct smbXsrv_client **_client);
 564 NTSTATUS smbXsrv_client_remove(struct smbXsrv_client *client);
 565 struct tevent_req *smb2srv_client_mc_negprot_send(TALLOC_CTX *mem_ctx,
 566                                                   struct tevent_context *ev,
 567                                                   struct smbd_smb2_request *smb2req);
 568 NTSTATUS smb2srv_client_mc_negprot_recv(struct tevent_req *req);
 569
 570 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 571                                         enum protocol_types protocol);
 572
 573 NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx);
 574 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 575                                 NTTIME now,
 576                                 struct smbXsrv_session **_session);
 577 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 578                                      struct smbXsrv_connection *conn,
 579                                      NTTIME now,
 580                                      struct smbXsrv_channel_global0 **_c);
 581 NTSTATUS smbXsrv_session_remove_channel(struct smbXsrv_session *session,
 582                                         struct smbXsrv_connection *xconn);
 583 NTSTATUS smbXsrv_session_disconnect_xconn(struct smbXsrv_connection *xconn);
 584 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 585 struct smbXsrv_channel_global0;
 586 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 587                                       const struct smbXsrv_connection *conn,
 588                                       struct smbXsrv_channel_global0 **_c);
 589 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 590                                    const struct smbXsrv_connection *conn,
 591                                    NTTIME now,
 592                                    struct smbXsrv_session_auth0 **_a);
 593 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 594                                      struct smbXsrv_connection *conn,
 595                                      NTTIME now,
 596                                      uint8_t in_flags,
 597                                      uint8_t in_security_mode,
 598                                      struct smbXsrv_session_auth0 **_a);
 599 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 600                                         struct tevent_context *ev,
 601                                         struct smbXsrv_session *session,
 602                                         struct smbd_smb2_request *current_req);
 603 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 604 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 605 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client);
 606 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 607 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 608                                 uint16_t vuid, NTTIME now,
 609                                 struct smbXsrv_session **session);
 610 NTSTATUS smbXsrv_session_info_lookup(struct smbXsrv_client *client,
 611                                      uint64_t session_wire_id,
 612                                      struct auth_session_info **si);
 613 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 614 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 615                                      uint64_t session_id, NTTIME now,
 616                                      struct smbXsrv_session **session);
 617 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 618                                        uint64_t session_id, NTTIME now,
 619                                        struct smbXsrv_session **session);
 620 NTSTATUS smb2srv_session_lookup_global(struct smbXsrv_client *client,
 621                                        uint64_t session_wire_id,
 622                                        TALLOC_CTX *mem_ctx,
 623                                        struct smbXsrv_session **session);
 624 NTSTATUS get_valid_smbXsrv_session(struct smbXsrv_client *client,
 625                                    uint64_t session_wire_id,
 626                                    struct smbXsrv_session **session);
 627 NTSTATUS smbXsrv_session_local_traverse(
 628         struct smbXsrv_client *client,
 629         int (*caller_cb)(struct smbXsrv_session *session,
 630                               void *caller_data),
 631         void *caller_data);
 632 struct smbXsrv_session_global0;
 633 NTSTATUS smbXsrv_session_global_traverse(
 634                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 635                         void *private_data);
 636 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 637                                         struct tevent_context *ev,
 638                                         struct smbXsrv_connection *conn,
 639                                         struct auth_session_info *session_info,
 640                                         uint64_t previous_session_id,
 641                                         uint64_t current_session_id);
 642 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 643
 644 NTSTATUS smbXsrv_tcon_global_init(void);
 645 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 646 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 647 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 648 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 649                              NTTIME now,
 650                              struct smbXsrv_tcon **_tcon);
 651 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 652                              uint16_t tree_id, NTTIME now,
 653                              struct smbXsrv_tcon **tcon);
 654 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client);
 655 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 656 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 657                              NTTIME now,
 658                              struct smbXsrv_tcon **_tcon);
 659 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 660                              uint32_t tree_id, NTTIME now,
 661                              struct smbXsrv_tcon **tcon);
 662 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 663 struct smbXsrv_tcon_global0;
 664 NTSTATUS smbXsrv_tcon_global_traverse(
 665                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 666                         void *private_data);
 667
 668
 669 bool smbXsrv_is_encrypted(uint8_t encryption_flags);
 670 bool smbXsrv_is_partially_encrypted(uint8_t encryption_flags);
 671 bool smbXsrv_set_crypto_flag(uint8_t *flags, uint8_t flag);
 672 bool smbXsrv_is_signed(uint8_t signing_flags);
 673 bool smbXsrv_is_partially_signed(uint8_t signing_flags);
 674
 675 struct smbd_smb2_send_queue {
 676         struct smbd_smb2_send_queue *prev, *next;
 677
 678         DATA_BLOB *sendfile_header;
 679         uint32_t sendfile_body_size;
 680         NTSTATUS *sendfile_status;
 681         struct iovec *vector;
 682         int count;
 683
 684         struct {
 685                 struct tevent_req *req;
 686                 struct timeval timeout;
 687                 uint64_t required_acked_bytes;
 688         } ack;
 689
 690         TALLOC_CTX *mem_ctx;
 691 };
 692
 693 struct smbd_smb2_request {
 694         struct smbd_smb2_request *prev, *next;
 695
 696         struct smbd_server_connection *sconn;
 697         struct smbXsrv_connection *xconn;
 698
 699         struct smbd_smb2_send_queue queue_entry;
 700
 701         /* the session the request operates on, maybe NULL */
 702         struct smbXsrv_session *session;
 703         uint64_t last_session_id;
 704
 705         /* the tcon the request operates on, maybe NULL */
 706         struct smbXsrv_tcon *tcon;
 707         uint32_t last_tid;
 708
 709         int current_idx;
 710         bool do_signing;
 711         /* Was the request encrypted? */
 712         bool was_encrypted;
 713         /* Should we encrypt? */
 714         bool do_encryption;
 715         struct tevent_timer *async_te;
 716         bool compound_related;
 717         NTSTATUS compound_create_err;
 718
 719         /*
 720          * Give the implementation of an SMB2 req a way to tell the SMB2 request
 721          * processing engine that the internal request is going async, while
 722          * preserving synchronous SMB2 behaviour.
 723          */
 724         bool async_internal;
 725
 726         /*
 727          * the encryption key for the whole
 728          * compound chain
 729          */
 730         struct smb2_signing_key *first_enc_key;
 731         /*
 732          * the signing key for the last
 733          * request/response of a compound chain
 734          */
 735         struct smb2_signing_key *last_sign_key;
 736         struct smbXsrv_preauth *preauth;
 737
 738         struct timeval request_time;
 739
 740         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 741
 742         /* fake smb1 request. */
 743         struct smb_request *smb1req;
 744         struct files_struct *compat_chain_fsp;
 745
 746         /*
 747          * Keep track of whether the outstanding request counters
 748          * had been updated in dispatch, so that they need to be
 749          * adapted again in reply.
 750          */
 751         bool request_counters_updated;
 752         uint64_t channel_generation;
 753
 754         /*
 755          * The sub request for async backend calls.
 756          * This is used for SMB2 Cancel.
 757          */
 758         struct tevent_req *subreq;
 759
 760 #define SMBD_SMB2_TF_IOV_OFS 0
 761 #define SMBD_SMB2_HDR_IOV_OFS 1
 762 #define SMBD_SMB2_BODY_IOV_OFS 2
 763 #define SMBD_SMB2_DYN_IOV_OFS 3
 764
 765 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 766
 767 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 768         (&req->dir.vector[(idx)+(ofs)])
 769
 770 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 771         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 772 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 773         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 774 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 775         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 776 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 777         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 778
 779 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 780 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 781 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 782 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 783 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 784 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 785 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 786 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 787 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 788 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 789
 790 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 791 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 792 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 793 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 794 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 795 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 796 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 797 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 798 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 799 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 800
 801 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 802
 803         struct {
 804                 /*
 805                  * vector[0] TRANSPORT HEADER (empty)
 806                  * .
 807                  * vector[1] SMB2_TRANSFORM (optional)
 808                  * vector[2] SMB2
 809                  * vector[3] fixed body
 810                  * vector[4] dynamic body
 811                  * .
 812                  * .
 813                  * .
 814                  * vector[5] SMB2_TRANSFORM (optional)
 815                  * vector[6] SMB2
 816                  * vector[7] fixed body
 817                  * vector[8] dynamic body
 818                  * .
 819                  * .
 820                  * .
 821                  */
 822                 struct iovec *vector;
 823                 int vector_count;
 824                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 825         } in;
 826         struct {
 827                 /* the NBT header is not allocated */
 828                 uint8_t nbt_hdr[4];
 829                 /*
 830                  * vector[0] TRANSPORT HEADER
 831                  * .
 832                  * vector[1] SMB2_TRANSFORM (optional)
 833                  * vector[2] SMB2
 834                  * vector[3] fixed body
 835                  * vector[4] dynamic body
 836                  * .
 837                  * .
 838                  * .
 839                  * vector[5] SMB2_TRANSFORM (empty)
 840                  * vector[6] SMB2
 841                  * vector[7] fixed body
 842                  * vector[8] dynamic body
 843                  * .
 844                  * .
 845                  * .
 846                  */
 847                 struct iovec *vector;
 848                 int vector_count;
 849                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 850 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 851                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 852                 uint8_t _body[0x58];
 853         } out;
 854 };
 855
 856 struct smbd_server_connection;
 857
 858 struct pending_message_list;
 859 struct pending_auth_data;
 860
 861 struct pthreadpool_tevent;
 862 struct dcesrv_context;
 863
 864 struct smbd_server_connection {
 865         const struct tsocket_address *local_address;
 866         const struct tsocket_address *remote_address;
 867         const char *remote_hostname;
 868         struct tevent_context *ev_ctx;
 869         struct messaging_context *msg_ctx;
 870         struct dcesrv_context *dce_ctx;
 871         struct notify_context *notify_ctx;
 872         bool using_smb2;
 873         int trans_num;
 874
 875         size_t num_users;
 876
 877         size_t num_connections;
 878         struct connection_struct *connections;
 879
 880         size_t num_files;
 881         struct files_struct *files;
 882
 883         int real_max_open_files;
 884         struct fsp_singleton_cache fsp_fi_cache;
 885
 886         struct pending_message_list *deferred_open_queue;
 887
 888
 889         /* open directory handles. */
 890         struct {
 891                 struct bitmap *dptr_bmap;
 892                 struct dptr_struct *dirptrs;
 893         } searches;
 894
 895         uint64_t num_requests;
 896
 897         /* Current number of oplocks we have outstanding. */
 898         struct {
 899                 int32_t exclusive_open;
 900                 int32_t level_II_open;
 901                 struct kernel_oplocks *kernel_ops;
 902         } oplocks;
 903
 904         struct notify_mid_map *notify_mid_maps;
 905
 906         struct pthreadpool_tevent *pool;
 907
 908         struct smbXsrv_client *client;
 909 };
 910
 911 extern struct smbXsrv_client *global_smbXsrv_client;
 912
 913 void smbd_init_globals(void);
 914
 915 /****************************************************************************
 916  The buffer we keep around whilst an aio request is in process.
 917 *****************************************************************************/
 918
 919 struct aio_extra {
 920         files_struct *fsp;
 921         struct smb_request *smbreq;
 922         DATA_BLOB outbuf;
 923         struct lock_struct lock;
 924         size_t nbyte;
 925         off_t offset;
 926         bool write_through;
 927 };
 928
 929 #endif /* _SOURCE3_SMBD_GLOBALS_H_ */