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 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         userdom_struct user_info;
  93 };
  94 /* A stack of current_user connection contexts. */
  95 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  96 extern int conn_ctx_stack_ndx;
  97
  98 struct vfs_init_function_entry;
  99 extern struct vfs_init_function_entry *backends;
 100 extern char *sparse_buf;
 101 extern char *LastDir;
 102
 103 struct smbd_parent_context;
 104 extern struct smbd_parent_context *am_parent;
 105 extern struct memcache *smbd_memcache_ctx;
 106 extern bool exit_firsttime;
 107
 108 struct tstream_context;
 109 struct smbd_smb2_request;
 110
 111 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 112
 113 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 114 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 115
 116 struct GUID smbd_request_guid(struct smb_request *smb1req, uint16_t idx);
 117
 118 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 119                            files_struct *fsp,
 120                            uint16_t num_ulocks,
 121                            struct smbd_lock_element *ulocks);
 122
 123 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 124                                TALLOC_CTX *mem_ctx,
 125                                struct smb_request *req,
 126                                uint16_t info_level,
 127                                files_struct *fsp,
 128                                struct smb_filename *smb_fname,
 129                                bool delete_pending,
 130                                struct timespec write_time_ts,
 131                                struct ea_list *ea_list,
 132                                int lock_data_count,
 133                                char *lock_data,
 134                                uint16_t flags2,
 135                                unsigned int max_data_bytes,
 136                                size_t *fixed_portion,
 137                                char **ppdata,
 138                                unsigned int *pdata_size);
 139
 140 NTSTATUS smbd_do_setfsinfo(connection_struct *conn,
 141                                 struct smb_request *req,
 142                                 TALLOC_CTX *mem_ctx,
 143                                 uint16_t info_level,
 144                                 files_struct *fsp,
 145                                 const DATA_BLOB *pdata);
 146
 147 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 148                                 struct smb_request *req,
 149                                 TALLOC_CTX *mem_ctx,
 150                                 uint16_t info_level,
 151                                 files_struct *fsp,
 152                                 struct smb_filename *smb_fname,
 153                                 char **ppdata, int total_data,
 154                                 int *ret_data_size);
 155
 156 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 157                          connection_struct *conn,
 158                          TALLOC_CTX *mem_ctx,
 159                          uint16_t info_level,
 160                          uint16_t flags2,
 161                          unsigned int max_data_bytes,
 162                          size_t *fixed_portion,
 163                          struct smb_filename *smb_fname,
 164                          char **ppdata,
 165                          int *ret_data_len);
 166
 167 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 168                            struct dptr_struct *dirptr,
 169                            const char *mask,
 170                            uint32_t dirtype,
 171                            bool dont_descend,
 172                            bool ask_sharemode,
 173                            bool get_dosmode,
 174                            bool (*match_fn)(TALLOC_CTX *ctx,
 175                                             void *private_data,
 176                                             const char *dname,
 177                                             const char *mask,
 178                                             char **_fname),
 179                            bool (*mode_fn)(TALLOC_CTX *ctx,
 180                                            void *private_data,
 181                                            struct files_struct *dirfsp,
 182                                            struct smb_filename *atname,
 183                                            struct smb_filename *smb_fname,
 184                                            bool get_dosmode,
 185                                            uint32_t *_mode),
 186                            void *private_data,
 187                            char **_fname,
 188                            struct smb_filename **_smb_fname,
 189                            uint32_t *_mode,
 190                            long *_prev_offset);
 191
 192 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 193                                connection_struct *conn,
 194                                struct dptr_struct *dirptr,
 195                                uint16_t flags2,
 196                                const char *path_mask,
 197                                uint32_t dirtype,
 198                                int info_level,
 199                                int requires_resume_key,
 200                                bool dont_descend,
 201                                bool ask_sharemode,
 202                                bool get_dosmode,
 203                                uint8_t align,
 204                                bool do_pad,
 205                                char **ppdata,
 206                                char *base_data,
 207                                char *end_data,
 208                                int space_remaining,
 209                                struct smb_filename **smb_fname,
 210                                bool *got_exact_match,
 211                                int *_last_entry_off,
 212                                struct ea_list *name_list,
 213                                struct file_id *file_id);
 214
 215 NTSTATUS smbd_calculate_access_mask_fsp(struct files_struct *dirsfp,
 216                         struct files_struct *fsp,
 217                         bool use_privs,
 218                         uint32_t access_mask,
 219                         uint32_t *access_mask_out);
 220
 221 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 222
 223 void smbXsrv_connection_disconnect_transport(struct smbXsrv_connection *xconn,
 224                                              NTSTATUS status);
 225 size_t smbXsrv_client_valid_connections(struct smbXsrv_client *client);
 226 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 227                                          const char *reason,
 228                                          const char *location);
 229 #define smbd_server_connection_terminate(xconn, reason) \
 230         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 231
 232 void smbd_server_disconnect_client_ex(struct smbXsrv_client *client,
 233                                       const char *reason,
 234                                       const char *location);
 235 #define smbd_server_disconnect_client(__client, __reason) \
 236         smbd_server_disconnect_client_ex(__client, __reason, __location__)
 237
 238 const char *smb2_opcode_name(uint16_t opcode);
 239 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 240 bool smbd_smb2_is_compound(const struct smbd_smb2_request *req);
 241
 242 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 243                              NTTIME now, struct smbXsrv_connection **_xconn);
 244
 245 NTSTATUS reply_smb2002(struct smb_request *req, uint16_t choice);
 246 NTSTATUS reply_smb20ff(struct smb_request *req, uint16_t choice);
 247 NTSTATUS smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 248                                uint64_t expected_seq_low,
 249                                const uint8_t *inpdu, size_t size);
 250 NTSTATUS smb2_multi_protocol_reply_negprot(struct smb_request *req);
 251
 252 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 253
 254 bool smbXsrv_server_multi_channel_enabled(void);
 255
 256 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 257                                     NTSTATUS status,
 258                                     DATA_BLOB *info,
 259                                     const char *location);
 260 #define smbd_smb2_request_error(req, status) \
 261         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 262 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 263                                    NTSTATUS status,
 264                                    DATA_BLOB body, DATA_BLOB *dyn,
 265                                    const char *location);
 266 #define smbd_smb2_request_done(req, body, dyn) \
 267         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 268
 269 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_client *client,
 270                                      struct smbXsrv_open *op,
 271                                      uint8_t oplock_level);
 272 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_client *client,
 273                                     uint16_t new_epoch,
 274                                     uint32_t lease_flags,
 275                                     struct smb2_lease_key *lease_key,
 276                                     uint32_t current_lease_state,
 277                                     uint32_t new_lease_state);
 278
 279 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 280                                          struct tevent_req *subreq,
 281                                          uint32_t defer_time);
 282
 283 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 284 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 285 void remove_smb2_chained_fsp(files_struct *fsp);
 286
 287 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 288                                                uint32_t data_length);
 289
 290 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 291                                         size_t expected_body_size);
 292
 293 void smb2_request_set_async_internal(struct smbd_smb2_request *req,
 294                                      bool async_internal);
 295
 296 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 297                                                      const int dialect_count,
 298                                                      uint16_t *dialect);
 299 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 300 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 301 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 302 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 303 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 304 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 305 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 306 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 307 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 308 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 309 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 310 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 311 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 312                                     int err);
 313 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 314 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 315 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 316 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 317 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 318 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 319 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 320 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 321 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 322 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 323                                 struct tevent_immediate *im,
 324                                 void *private_data);
 325
 326 struct deferred_open_record;
 327
 328 /* SMB1 -> SMB2 glue. */
 329 void send_break_message_smb2(files_struct *fsp,
 330                              uint32_t break_from,
 331                              uint32_t break_to);
 332 /* From smbd/smb2_create.c */
 333 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 334 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 335                         struct timeval *p_request_time,
 336                         struct deferred_open_record **open_rec);
 337 bool open_was_deferred_smb2(
 338         struct smbXsrv_connection *xconn, uint64_t mid);
 339 void remove_deferred_open_message_smb2(
 340         struct smbXsrv_connection *xconn, uint64_t mid);
 341 bool schedule_deferred_open_message_smb2(
 342         struct smbXsrv_connection *xconn, uint64_t mid);
 343 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 344                                 struct timeval request_time,
 345                                 struct timeval timeout,
 346                                 struct file_id id,
 347                                 struct deferred_open_record *open_rec);
 348
 349 struct smbXsrv_client;
 350
 351 struct smbXsrv_preauth {
 352         uint8_t sha512_value[64];
 353 };
 354
 355 struct smbXsrv_connection {
 356         struct smbXsrv_connection *prev, *next;
 357
 358         struct smbXsrv_client *client;
 359
 360         NTTIME connect_time;
 361         uint64_t channel_id;
 362         const struct tsocket_address *local_address;
 363         const struct tsocket_address *remote_address;
 364         const char *remote_hostname;
 365         bool has_cluster_movable_ip;
 366
 367         enum protocol_types protocol;
 368
 369         struct {
 370                 NTSTATUS status;
 371                 bool terminating;
 372                 struct tevent_queue *shutdown_wait_queue;
 373                 int sock;
 374                 struct tevent_fd *fde;
 375
 376                 struct {
 377                         bool got_session;
 378                 } nbt;
 379         } transport;
 380
 381         struct {
 382                 bool force_unacked_timeout;
 383                 uint64_t unacked_bytes;
 384                 uint32_t rto_usecs;
 385                 struct tevent_req *checker_subreq;
 386                 struct smbd_smb2_send_queue *queue;
 387         } ack;
 388
 389 #if defined(WITH_SMB1SERVER)
 390         struct {
 391                 struct {
 392                         /*
 393                          * fd for the fcntl lock and process shared
 394                          * robust mutex to coordinate access to the
 395                          * client socket. When the system supports
 396                          * process shared robust mutexes, those are
 397                          * used. If not, then the fcntl lock will be
 398                          * used.
 399                          */
 400                         int socket_lock_fd;
 401 #ifdef HAVE_ROBUST_MUTEXES
 402                         pthread_mutex_t *socket_mutex;
 403 #endif
 404
 405                         /*
 406                          * fd for the trusted pipe from
 407                          * echo handler child
 408                          */
 409                         int trusted_fd;
 410
 411                         /*
 412                          * fde for the trusted_fd
 413                          */
 414                         struct tevent_fd *trusted_fde;
 415
 416                         /*
 417                          * Reference count for the fcntl lock to
 418                          * allow recursive locks.
 419                          */
 420                         int ref_count;
 421                 } echo_handler;
 422
 423                 struct {
 424                         bool encrypted_passwords;
 425                         bool spnego;
 426                         struct auth4_context *auth_context;
 427                         bool done;
 428                         /*
 429                          * Size of the data we can receive. Set by us.
 430                          * Can be modified by the max xmit parameter.
 431                          */
 432                         int max_recv;
 433                 } negprot;
 434
 435                 struct {
 436                         bool done_sesssetup;
 437                         /*
 438                          * Size of data we can send to client. Set
 439                          *  by the client for all protocols above CORE.
 440                          *  Set by us for CORE protocol.
 441                          */
 442                         int max_send;
 443                 } sessions;
 444                 struct smb1_signing_state *signing_state;
 445
 446                 struct {
 447                         uint16_t client_major;
 448                         uint16_t client_minor;
 449                         uint32_t client_cap_low;
 450                         uint32_t client_cap_high;
 451                 } unix_info;
 452
 453                 struct msg_state *msg_state;
 454         } smb1;
 455 #endif
 456         struct {
 457                 struct smbd_smb2_request_read_state {
 458                         struct smbd_smb2_request *req;
 459                         struct {
 460                                 uint8_t nbt[NBT_HDR_SIZE];
 461                                 bool done;
 462                         } hdr;
 463                         struct iovec vector;
 464                         bool doing_receivefile;
 465                         size_t min_recv_size;
 466                         size_t pktfull;
 467                         size_t pktlen;
 468                         uint8_t *pktbuf;
 469                 } request_read_state;
 470                 struct smbd_smb2_send_queue *send_queue;
 471                 size_t send_queue_len;
 472
 473                 struct {
 474                         /*
 475                          * seq_low is the lowest sequence number
 476                          * we will accept.
 477                          */
 478                         uint64_t seq_low;
 479                         /*
 480                          * seq_range is the range of credits we have
 481                          * granted from the sequence windows starting
 482                          * at seq_low.
 483                          *
 484                          * This gets incremented when new credits are
 485                          * granted and gets decremented when the
 486                          * lowest sequence number is consumed
 487                          * (when seq_low gets incremented).
 488                          */
 489                         uint16_t seq_range;
 490                         /*
 491                          * The number of credits we have currently granted
 492                          * to the client.
 493                          *
 494                          * This gets incremented when new credits are
 495                          * granted and gets decremented when any credit
 496                          * is comsumed.
 497                          *
 498                          * Note: the decrementing is different compared
 499                          *       to seq_range.
 500                          */
 501                         uint16_t granted;
 502                         /*
 503                          * The maximum number of credits we will ever
 504                          * grant to the client.
 505                          *
 506                          * Typically we will only grant 1/16th of
 507                          * max_credits.
 508                          *
 509                          * This is the "server max credits" parameter.
 510                          */
 511                         uint16_t max;
 512                         /*
 513                          * a bitmap of size max_credits
 514                          */
 515                         struct bitmap *bitmap;
 516                         bool multicredit;
 517                 } credits;
 518
 519                 bool allow_2ff;
 520                 struct {
 521                         uint32_t capabilities;
 522                         struct GUID guid;
 523                         bool guid_verified;
 524                         uint16_t security_mode;
 525                         uint16_t num_dialects;
 526                         uint16_t *dialects;
 527                 } client;
 528                 struct {
 529                         uint32_t capabilities;
 530                         struct GUID guid;
 531                         uint16_t security_mode;
 532                         uint16_t dialect;
 533                         uint32_t max_trans;
 534                         uint32_t max_read;
 535                         uint32_t max_write;
 536                         uint16_t sign_algo;
 537                         uint16_t cipher;
 538                         bool posix_extensions_negotiated;
 539                 } server;
 540
 541                 struct smbXsrv_preauth preauth;
 542
 543                 struct smbd_smb2_request *requests;
 544
 545                 struct {
 546                         uint8_t read_body_padding;
 547                 } smbtorture;
 548
 549                 bool signing_mandatory;
 550         } smb2;
 551 };
 552
 553 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 554
 555 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 556 uint32_t smbXsrv_version_global_current(void);
 557
 558 struct smbXsrv_client_table;
 559 NTSTATUS smbXsrv_client_global_init(void);
 560 NTSTATUS smbXsrv_client_create(TALLOC_CTX *mem_ctx,
 561                                struct tevent_context *ev_ctx,
 562                                struct messaging_context *msg_ctx,
 563                                NTTIME now,
 564                                struct smbXsrv_client **_client);
 565 NTSTATUS smbXsrv_client_remove(struct smbXsrv_client *client);
 566 struct tevent_req *smb2srv_client_mc_negprot_send(TALLOC_CTX *mem_ctx,
 567                                                   struct tevent_context *ev,
 568                                                   struct smbd_smb2_request *smb2req);
 569 NTSTATUS smb2srv_client_mc_negprot_recv(struct tevent_req *req);
 570
 571 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 572                                         enum protocol_types protocol);
 573
 574 NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx);
 575 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 576                                 NTTIME now,
 577                                 struct smbXsrv_session **_session);
 578 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 579                                      struct smbXsrv_connection *conn,
 580                                      NTTIME now,
 581                                      struct smbXsrv_channel_global0 **_c);
 582 NTSTATUS smbXsrv_session_remove_channel(struct smbXsrv_session *session,
 583                                         struct smbXsrv_connection *xconn);
 584 NTSTATUS smbXsrv_session_disconnect_xconn(struct smbXsrv_connection *xconn);
 585 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 586 struct smbXsrv_channel_global0;
 587 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 588                                       const struct smbXsrv_connection *conn,
 589                                       struct smbXsrv_channel_global0 **_c);
 590 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 591                                    const struct smbXsrv_connection *conn,
 592                                    NTTIME now,
 593                                    struct smbXsrv_session_auth0 **_a);
 594 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 595                                      struct smbXsrv_connection *conn,
 596                                      NTTIME now,
 597                                      uint8_t in_flags,
 598                                      uint8_t in_security_mode,
 599                                      struct smbXsrv_session_auth0 **_a);
 600 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 601                                         struct tevent_context *ev,
 602                                         struct smbXsrv_session *session,
 603                                         struct smbd_smb2_request *current_req);
 604 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 605 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 606 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client);
 607 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 608 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 609                                 uint16_t vuid, NTTIME now,
 610                                 struct smbXsrv_session **session);
 611 NTSTATUS smbXsrv_session_info_lookup(struct smbXsrv_client *client,
 612                                      uint64_t session_wire_id,
 613                                      struct auth_session_info **si);
 614 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 615 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 616                                      uint64_t session_id, NTTIME now,
 617                                      struct smbXsrv_session **session);
 618 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 619                                        uint64_t session_id, NTTIME now,
 620                                        struct smbXsrv_session **session);
 621 NTSTATUS smb2srv_session_lookup_global(struct smbXsrv_client *client,
 622                                        uint64_t session_wire_id,
 623                                        TALLOC_CTX *mem_ctx,
 624                                        struct smbXsrv_session **session);
 625 NTSTATUS get_valid_smbXsrv_session(struct smbXsrv_client *client,
 626                                    uint64_t session_wire_id,
 627                                    struct smbXsrv_session **session);
 628 NTSTATUS smbXsrv_session_local_traverse(
 629         struct smbXsrv_client *client,
 630         int (*caller_cb)(struct smbXsrv_session *session,
 631                               void *caller_data),
 632         void *caller_data);
 633 struct smbXsrv_session_global0;
 634 NTSTATUS smbXsrv_session_global_traverse(
 635                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 636                         void *private_data);
 637 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 638                                         struct tevent_context *ev,
 639                                         struct smbXsrv_connection *conn,
 640                                         struct auth_session_info *session_info,
 641                                         uint64_t previous_session_id,
 642                                         uint64_t current_session_id);
 643 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 644
 645 NTSTATUS smbXsrv_tcon_global_init(void);
 646 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 647 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 648 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 649 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 650                              NTTIME now,
 651                              struct smbXsrv_tcon **_tcon);
 652 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 653                              uint16_t tree_id, NTTIME now,
 654                              struct smbXsrv_tcon **tcon);
 655 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client);
 656 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 657 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 658                              NTTIME now,
 659                              struct smbXsrv_tcon **_tcon);
 660 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 661                              uint32_t tree_id, NTTIME now,
 662                              struct smbXsrv_tcon **tcon);
 663 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 664 struct smbXsrv_tcon_global0;
 665 NTSTATUS smbXsrv_tcon_global_traverse(
 666                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 667                         void *private_data);
 668
 669
 670 bool smbXsrv_is_encrypted(uint8_t encryption_flags);
 671 bool smbXsrv_is_partially_encrypted(uint8_t encryption_flags);
 672 bool smbXsrv_set_crypto_flag(uint8_t *flags, uint8_t flag);
 673 bool smbXsrv_is_signed(uint8_t signing_flags);
 674 bool smbXsrv_is_partially_signed(uint8_t signing_flags);
 675
 676 struct smbd_smb2_send_queue {
 677         struct smbd_smb2_send_queue *prev, *next;
 678
 679         DATA_BLOB *sendfile_header;
 680         uint32_t sendfile_body_size;
 681         NTSTATUS *sendfile_status;
 682         struct iovec *vector;
 683         int count;
 684
 685         struct {
 686                 struct tevent_req *req;
 687                 struct timeval timeout;
 688                 uint64_t required_acked_bytes;
 689         } ack;
 690
 691         TALLOC_CTX *mem_ctx;
 692 };
 693
 694 struct smbd_smb2_request {
 695         struct smbd_smb2_request *prev, *next;
 696
 697         struct smbd_server_connection *sconn;
 698         struct smbXsrv_connection *xconn;
 699
 700         struct smbd_smb2_send_queue queue_entry;
 701
 702         /* the session the request operates on, maybe NULL */
 703         struct smbXsrv_session *session;
 704         uint64_t last_session_id;
 705
 706         /* the tcon the request operates on, maybe NULL */
 707         struct smbXsrv_tcon *tcon;
 708         uint32_t last_tid;
 709
 710         int current_idx;
 711         bool do_signing;
 712         /* Was the request encrypted? */
 713         bool was_encrypted;
 714         /* Should we encrypt? */
 715         bool do_encryption;
 716         struct tevent_timer *async_te;
 717         bool compound_related;
 718         NTSTATUS compound_create_err;
 719
 720         /*
 721          * Give the implementation of an SMB2 req a way to tell the SMB2 request
 722          * processing engine that the internal request is going async, while
 723          * preserving synchronous SMB2 behaviour.
 724          */
 725         bool async_internal;
 726
 727         /*
 728          * the encryption key for the whole
 729          * compound chain
 730          */
 731         struct smb2_signing_key *first_enc_key;
 732         /*
 733          * the signing key for the last
 734          * request/response of a compound chain
 735          */
 736         struct smb2_signing_key *last_sign_key;
 737         struct smbXsrv_preauth *preauth;
 738
 739         struct timeval request_time;
 740
 741         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 742
 743         /* fake smb1 request. */
 744         struct smb_request *smb1req;
 745         struct files_struct *compat_chain_fsp;
 746
 747         /*
 748          * Keep track of whether the outstanding request counters
 749          * had been updated in dispatch, so that they need to be
 750          * adapted again in reply.
 751          */
 752         bool request_counters_updated;
 753         uint64_t channel_generation;
 754
 755         /*
 756          * The sub request for async backend calls.
 757          * This is used for SMB2 Cancel.
 758          */
 759         struct tevent_req *subreq;
 760
 761 #define SMBD_SMB2_TF_IOV_OFS 0
 762 #define SMBD_SMB2_HDR_IOV_OFS 1
 763 #define SMBD_SMB2_BODY_IOV_OFS 2
 764 #define SMBD_SMB2_DYN_IOV_OFS 3
 765
 766 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 767
 768 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 769         (&req->dir.vector[(idx)+(ofs)])
 770
 771 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 772         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 773 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 774         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 775 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 776         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 777 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 778         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 779
 780 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 781 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 782 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 783 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 784 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 785 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 786 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 787 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 788 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 789 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 790
 791 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 792 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 793 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 794 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 795 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 796 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 797 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 798 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 799 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 800 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 801
 802 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 803
 804         struct {
 805                 /*
 806                  * vector[0] TRANSPORT HEADER (empty)
 807                  * .
 808                  * vector[1] SMB2_TRANSFORM (optional)
 809                  * vector[2] SMB2
 810                  * vector[3] fixed body
 811                  * vector[4] dynamic body
 812                  * .
 813                  * .
 814                  * .
 815                  * vector[5] SMB2_TRANSFORM (optional)
 816                  * vector[6] SMB2
 817                  * vector[7] fixed body
 818                  * vector[8] dynamic body
 819                  * .
 820                  * .
 821                  * .
 822                  */
 823                 struct iovec *vector;
 824                 int vector_count;
 825                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 826         } in;
 827         struct {
 828                 /* the NBT header is not allocated */
 829                 uint8_t nbt_hdr[4];
 830                 /*
 831                  * vector[0] TRANSPORT HEADER
 832                  * .
 833                  * vector[1] SMB2_TRANSFORM (optional)
 834                  * vector[2] SMB2
 835                  * vector[3] fixed body
 836                  * vector[4] dynamic body
 837                  * .
 838                  * .
 839                  * .
 840                  * vector[5] SMB2_TRANSFORM (empty)
 841                  * vector[6] SMB2
 842                  * vector[7] fixed body
 843                  * vector[8] dynamic body
 844                  * .
 845                  * .
 846                  * .
 847                  */
 848                 struct iovec *vector;
 849                 int vector_count;
 850                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 851 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 852                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 853                 uint8_t _body[0x58];
 854         } out;
 855 };
 856
 857 struct smbd_server_connection;
 858
 859 struct pending_message_list;
 860 struct pending_auth_data;
 861
 862 struct pthreadpool_tevent;
 863 struct dcesrv_context;
 864
 865 struct smbd_server_connection {
 866         const struct tsocket_address *local_address;
 867         const struct tsocket_address *remote_address;
 868         const char *remote_hostname;
 869         struct tevent_context *ev_ctx;
 870         struct messaging_context *msg_ctx;
 871         struct dcesrv_context *dce_ctx;
 872         struct notify_context *notify_ctx;
 873         bool using_smb2;
 874         int trans_num;
 875
 876         size_t num_users;
 877
 878         size_t num_connections;
 879         struct connection_struct *connections;
 880
 881         size_t num_files;
 882         struct files_struct *files;
 883
 884         int real_max_open_files;
 885         struct fsp_singleton_cache fsp_fi_cache;
 886
 887         struct pending_message_list *deferred_open_queue;
 888
 889
 890         /* open directory handles. */
 891         struct {
 892                 struct bitmap *dptr_bmap;
 893                 struct dptr_struct *dirptrs;
 894         } searches;
 895
 896         uint64_t num_requests;
 897
 898         /* Current number of oplocks we have outstanding. */
 899         struct {
 900                 int32_t exclusive_open;
 901                 int32_t level_II_open;
 902                 struct kernel_oplocks *kernel_ops;
 903         } oplocks;
 904
 905         struct notify_mid_map *notify_mid_maps;
 906
 907         struct pthreadpool_tevent *pool;
 908
 909         struct smbXsrv_client *client;
 910 };
 911
 912 extern struct smbXsrv_client *global_smbXsrv_client;
 913
 914 void smbd_init_globals(void);
 915
 916 /****************************************************************************
 917  The buffer we keep around whilst an aio request is in process.
 918 *****************************************************************************/
 919
 920 struct aio_extra {
 921         files_struct *fsp;
 922         struct smb_request *smbreq;
 923         DATA_BLOB outbuf;
 924         struct lock_struct lock;
 925         size_t nbyte;
 926         off_t offset;
 927         bool write_through;
 928 };
 929
 930 #endif /* _SOURCE3_SMBD_GLOBALS_H_ */