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                                uint16_t flags2,
 130                                unsigned int max_data_bytes,
 131                                size_t *fixed_portion,
 132                                char **ppdata,
 133                                unsigned int *pdata_size);
 134
 135 NTSTATUS smbd_do_setfsinfo(connection_struct *conn,
 136                                 struct smb_request *req,
 137                                 TALLOC_CTX *mem_ctx,
 138                                 uint16_t info_level,
 139                                 files_struct *fsp,
 140                                 const DATA_BLOB *pdata);
 141
 142 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 143                                 struct smb_request *req,
 144                                 TALLOC_CTX *mem_ctx,
 145                                 uint16_t info_level,
 146                                 files_struct *fsp,
 147                                 struct smb_filename *smb_fname,
 148                                 char **ppdata, int total_data,
 149                                 int *ret_data_size);
 150
 151 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 152                          connection_struct *conn,
 153                          TALLOC_CTX *mem_ctx,
 154                          uint16_t info_level,
 155                          uint16_t flags2,
 156                          unsigned int max_data_bytes,
 157                          size_t *fixed_portion,
 158                          struct smb_filename *smb_fname,
 159                          char **ppdata,
 160                          int *ret_data_len);
 161
 162 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 163                            struct dptr_struct *dirptr,
 164                            const char *mask,
 165                            uint32_t dirtype,
 166                            bool dont_descend,
 167                            bool ask_sharemode,
 168                            bool get_dosmode,
 169                            bool (*match_fn)(TALLOC_CTX *ctx,
 170                                             void *private_data,
 171                                             const char *dname,
 172                                             const char *mask,
 173                                             char **_fname),
 174                            bool (*mode_fn)(TALLOC_CTX *ctx,
 175                                            void *private_data,
 176                                            struct files_struct *dirfsp,
 177                                            struct smb_filename *atname,
 178                                            struct smb_filename *smb_fname,
 179                                            bool get_dosmode,
 180                                            uint32_t *_mode),
 181                            void *private_data,
 182                            char **_fname,
 183                            struct smb_filename **_smb_fname,
 184                            uint32_t *_mode,
 185                            long *_prev_offset);
 186
 187 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 188                                connection_struct *conn,
 189                                struct dptr_struct *dirptr,
 190                                uint16_t flags2,
 191                                const char *path_mask,
 192                                uint32_t dirtype,
 193                                int info_level,
 194                                int requires_resume_key,
 195                                bool dont_descend,
 196                                bool ask_sharemode,
 197                                bool get_dosmode,
 198                                uint8_t align,
 199                                bool do_pad,
 200                                char **ppdata,
 201                                char *base_data,
 202                                char *end_data,
 203                                int space_remaining,
 204                                struct smb_filename **smb_fname,
 205                                bool *got_exact_match,
 206                                int *_last_entry_off,
 207                                struct ea_list *name_list,
 208                                struct file_id *file_id);
 209
 210 NTSTATUS smbd_calculate_access_mask_fsp(struct files_struct *dirsfp,
 211                         struct files_struct *fsp,
 212                         bool use_privs,
 213                         uint32_t access_mask,
 214                         uint32_t *access_mask_out);
 215
 216 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 217
 218 void smbXsrv_connection_disconnect_transport(struct smbXsrv_connection *xconn,
 219                                              NTSTATUS status);
 220 size_t smbXsrv_client_valid_connections(struct smbXsrv_client *client);
 221 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 222                                          const char *reason,
 223                                          const char *location);
 224 #define smbd_server_connection_terminate(xconn, reason) \
 225         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 226
 227 void smbd_server_disconnect_client_ex(struct smbXsrv_client *client,
 228                                       const char *reason,
 229                                       const char *location);
 230 #define smbd_server_disconnect_client(__client, __reason) \
 231         smbd_server_disconnect_client_ex(__client, __reason, __location__)
 232
 233 const char *smb2_opcode_name(uint16_t opcode);
 234 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 235 bool smbd_smb2_is_compound(const struct smbd_smb2_request *req);
 236 bool smbd_smb2_is_last_in_compound(const struct smbd_smb2_request *req);
 237
 238 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 239                              NTTIME now, struct smbXsrv_connection **_xconn);
 240
 241 NTSTATUS reply_smb2002(struct smb_request *req, uint16_t choice);
 242 NTSTATUS reply_smb20ff(struct smb_request *req, uint16_t choice);
 243 NTSTATUS smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 244                                uint64_t expected_seq_low,
 245                                const uint8_t *inpdu, size_t size);
 246 NTSTATUS smb2_multi_protocol_reply_negprot(struct smb_request *req);
 247
 248 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 249
 250 bool smbXsrv_server_multi_channel_enabled(void);
 251
 252 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 253                                     NTSTATUS status,
 254                                     uint8_t error_context_count,
 255                                     DATA_BLOB *info,
 256                                     const char *location);
 257 #define smbd_smb2_request_error(req, status) \
 258         smbd_smb2_request_error_ex(req, status, 0, NULL, __location__)
 259 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 260                                    NTSTATUS status,
 261                                    DATA_BLOB body, DATA_BLOB *dyn,
 262                                    const char *location);
 263 #define smbd_smb2_request_done(req, body, dyn) \
 264         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 265
 266 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_client *client,
 267                                      struct smbXsrv_open *op,
 268                                      uint8_t oplock_level);
 269 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_client *client,
 270                                     uint16_t new_epoch,
 271                                     uint32_t lease_flags,
 272                                     struct smb2_lease_key *lease_key,
 273                                     uint32_t current_lease_state,
 274                                     uint32_t new_lease_state);
 275
 276 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 277                                          struct tevent_req *subreq,
 278                                          uint32_t defer_time);
 279
 280 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req,
 281                                                struct files_struct *fsp);
 282 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 283 void remove_smb2_chained_fsp(files_struct *fsp);
 284
 285 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 286                                                uint32_t data_length);
 287
 288 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 289                                         size_t expected_body_size);
 290
 291 void smb2_request_set_async_internal(struct smbd_smb2_request *req,
 292                                      bool async_internal);
 293
 294 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 295                                                      const int dialect_count,
 296                                                      uint16_t *dialect);
 297 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 298 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 299 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 300 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 301 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 302 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 303 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 304 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 305 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 306 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 307 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 308 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 309 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 310                                     int err);
 311 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 312 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 313 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 314 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 315 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 316 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 317 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 318 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 319 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 320 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 321                                 struct tevent_immediate *im,
 322                                 void *private_data);
 323
 324 struct deferred_open_record;
 325
 326 /* SMB1 -> SMB2 glue. */
 327 void send_break_message_smb2(files_struct *fsp,
 328                              uint32_t break_from,
 329                              uint32_t break_to);
 330 /* From smbd/smb2_create.c */
 331 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 332 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 333                         struct timeval *p_request_time,
 334                         struct deferred_open_record **open_rec);
 335 bool open_was_deferred_smb2(
 336         struct smbXsrv_connection *xconn, uint64_t mid);
 337 void remove_deferred_open_message_smb2(
 338         struct smbXsrv_connection *xconn, uint64_t mid);
 339 bool schedule_deferred_open_message_smb2(
 340         struct smbXsrv_connection *xconn, uint64_t mid);
 341 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 342                                 struct timeval request_time,
 343                                 struct timeval timeout,
 344                                 struct file_id id,
 345                                 struct deferred_open_record *open_rec);
 346
 347 struct smbXsrv_client;
 348
 349 struct smbXsrv_preauth {
 350         uint8_t sha512_value[64];
 351 };
 352
 353 struct smbXsrv_connection {
 354         struct smbXsrv_connection *prev, *next;
 355
 356         struct smbXsrv_client *client;
 357
 358         NTTIME connect_time;
 359         uint64_t channel_id;
 360         const struct tsocket_address *local_address;
 361         const struct tsocket_address *remote_address;
 362         const char *remote_hostname;
 363         bool has_cluster_movable_ip;
 364
 365         enum protocol_types protocol;
 366
 367         struct {
 368                 NTSTATUS status;
 369                 bool terminating;
 370                 struct tevent_queue *shutdown_wait_queue;
 371                 int sock;
 372                 struct tevent_fd *fde;
 373
 374                 struct {
 375                         bool got_session;
 376                 } nbt;
 377         } transport;
 378
 379         struct {
 380                 bool force_unacked_timeout;
 381                 uint64_t unacked_bytes;
 382                 uint32_t rto_usecs;
 383                 struct tevent_req *checker_subreq;
 384                 struct smbd_smb2_send_queue *queue;
 385         } ack;
 386
 387 #if defined(WITH_SMB1SERVER)
 388         struct {
 389                 struct {
 390                         /*
 391                          * fd for the fcntl lock and process shared
 392                          * robust mutex to coordinate access to the
 393                          * client socket. When the system supports
 394                          * process shared robust mutexes, those are
 395                          * used. If not, then the fcntl lock will be
 396                          * used.
 397                          */
 398                         int socket_lock_fd;
 399 #ifdef HAVE_ROBUST_MUTEXES
 400                         pthread_mutex_t *socket_mutex;
 401 #endif
 402
 403                         /*
 404                          * fd for the trusted pipe from
 405                          * echo handler child
 406                          */
 407                         int trusted_fd;
 408
 409                         /*
 410                          * fde for the trusted_fd
 411                          */
 412                         struct tevent_fd *trusted_fde;
 413
 414                         /*
 415                          * Reference count for the fcntl lock to
 416                          * allow recursive locks.
 417                          */
 418                         int ref_count;
 419                 } echo_handler;
 420
 421                 struct {
 422                         bool encrypted_passwords;
 423                         bool spnego;
 424                         struct auth4_context *auth_context;
 425                         bool done;
 426                         /*
 427                          * Size of the data we can receive. Set by us.
 428                          * Can be modified by the max xmit parameter.
 429                          */
 430                         int max_recv;
 431                 } negprot;
 432
 433                 struct {
 434                         bool done_sesssetup;
 435                         /*
 436                          * Size of data we can send to client. Set
 437                          *  by the client for all protocols above CORE.
 438                          *  Set by us for CORE protocol.
 439                          */
 440                         int max_send;
 441                 } sessions;
 442                 struct smb1_signing_state *signing_state;
 443
 444                 struct {
 445                         uint16_t client_major;
 446                         uint16_t client_minor;
 447                         uint32_t client_cap_low;
 448                         uint32_t client_cap_high;
 449                 } unix_info;
 450
 451                 struct msg_state *msg_state;
 452         } smb1;
 453 #endif
 454         struct {
 455                 struct smbd_smb2_request_read_state {
 456                         struct smbd_smb2_request *req;
 457                         struct {
 458                                 uint8_t nbt[NBT_HDR_SIZE];
 459                                 bool done;
 460                         } hdr;
 461                         struct iovec vector;
 462                         bool doing_receivefile;
 463                         size_t min_recv_size;
 464                         size_t pktfull;
 465                         size_t pktlen;
 466                         uint8_t *pktbuf;
 467                 } request_read_state;
 468                 struct smbd_smb2_send_queue *send_queue;
 469                 size_t send_queue_len;
 470
 471                 struct {
 472                         /*
 473                          * seq_low is the lowest sequence number
 474                          * we will accept.
 475                          */
 476                         uint64_t seq_low;
 477                         /*
 478                          * seq_range is the range of credits we have
 479                          * granted from the sequence windows starting
 480                          * at seq_low.
 481                          *
 482                          * This gets incremented when new credits are
 483                          * granted and gets decremented when the
 484                          * lowest sequence number is consumed
 485                          * (when seq_low gets incremented).
 486                          */
 487                         uint16_t seq_range;
 488                         /*
 489                          * The number of credits we have currently granted
 490                          * to the client.
 491                          *
 492                          * This gets incremented when new credits are
 493                          * granted and gets decremented when any credit
 494                          * is comsumed.
 495                          *
 496                          * Note: the decrementing is different compared
 497                          *       to seq_range.
 498                          */
 499                         uint16_t granted;
 500                         /*
 501                          * The maximum number of credits we will ever
 502                          * grant to the client.
 503                          *
 504                          * Typically we will only grant 1/16th of
 505                          * max_credits.
 506                          *
 507                          * This is the "server max credits" parameter.
 508                          */
 509                         uint16_t max;
 510                         /*
 511                          * a bitmap of size max_credits
 512                          */
 513                         struct bitmap *bitmap;
 514                         bool multicredit;
 515                 } credits;
 516
 517                 bool allow_2ff;
 518                 struct {
 519                         uint32_t capabilities;
 520                         struct GUID guid;
 521                         bool guid_verified;
 522                         uint16_t security_mode;
 523                         uint16_t num_dialects;
 524                         uint16_t *dialects;
 525                 } client;
 526                 struct {
 527                         uint32_t capabilities;
 528                         struct GUID guid;
 529                         uint16_t security_mode;
 530                         uint16_t dialect;
 531                         uint32_t max_trans;
 532                         uint32_t max_read;
 533                         uint32_t max_write;
 534                         uint16_t sign_algo;
 535                         uint16_t cipher;
 536                         bool posix_extensions_negotiated;
 537                 } server;
 538
 539                 struct smbXsrv_preauth preauth;
 540
 541                 struct smbd_smb2_request *requests;
 542
 543                 struct {
 544                         uint8_t read_body_padding;
 545                 } smbtorture;
 546
 547                 bool signing_mandatory;
 548         } smb2;
 549 };
 550
 551 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 552
 553 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 554 uint32_t smbXsrv_version_global_current(void);
 555
 556 struct smbXsrv_client_table;
 557 NTSTATUS smbXsrv_client_global_init(void);
 558 NTSTATUS smbXsrv_client_create(TALLOC_CTX *mem_ctx,
 559                                struct tevent_context *ev_ctx,
 560                                struct messaging_context *msg_ctx,
 561                                NTTIME now,
 562                                struct smbXsrv_client **_client);
 563 NTSTATUS smbXsrv_client_remove(struct smbXsrv_client *client);
 564 struct tevent_req *smb2srv_client_mc_negprot_send(TALLOC_CTX *mem_ctx,
 565                                                   struct tevent_context *ev,
 566                                                   struct smbd_smb2_request *smb2req);
 567 NTSTATUS smb2srv_client_mc_negprot_recv(struct tevent_req *req);
 568
 569 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 570                                         enum protocol_types protocol);
 571
 572 NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx);
 573 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 574                                 NTTIME now,
 575                                 struct smbXsrv_session **_session);
 576 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 577                                      struct smbXsrv_connection *conn,
 578                                      NTTIME now,
 579                                      struct smbXsrv_channel_global0 **_c);
 580 NTSTATUS smbXsrv_session_remove_channel(struct smbXsrv_session *session,
 581                                         struct smbXsrv_connection *xconn);
 582 NTSTATUS smbXsrv_session_disconnect_xconn(struct smbXsrv_connection *xconn);
 583 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 584 struct smbXsrv_channel_global0;
 585 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 586                                       const struct smbXsrv_connection *conn,
 587                                       struct smbXsrv_channel_global0 **_c);
 588 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 589                                    const struct smbXsrv_connection *conn,
 590                                    NTTIME now,
 591                                    struct smbXsrv_session_auth0 **_a);
 592 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 593                                      struct smbXsrv_connection *conn,
 594                                      NTTIME now,
 595                                      uint8_t in_flags,
 596                                      uint8_t in_security_mode,
 597                                      struct smbXsrv_session_auth0 **_a);
 598 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 599                                         struct tevent_context *ev,
 600                                         struct smbXsrv_session *session,
 601                                         struct smbd_smb2_request *current_req);
 602 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 603 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 604 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client);
 605 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 606 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 607                                 uint16_t vuid, NTTIME now,
 608                                 struct smbXsrv_session **session);
 609 NTSTATUS smbXsrv_session_info_lookup(struct smbXsrv_client *client,
 610                                      uint64_t session_wire_id,
 611                                      struct auth_session_info **si);
 612 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 613 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 614                                      uint64_t session_id, NTTIME now,
 615                                      struct smbXsrv_session **session);
 616 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 617                                        uint64_t session_id, NTTIME now,
 618                                        struct smbXsrv_session **session);
 619 NTSTATUS smb2srv_session_lookup_global(struct smbXsrv_client *client,
 620                                        uint64_t session_wire_id,
 621                                        TALLOC_CTX *mem_ctx,
 622                                        struct smbXsrv_session **session);
 623 NTSTATUS get_valid_smbXsrv_session(struct smbXsrv_client *client,
 624                                    uint64_t session_wire_id,
 625                                    struct smbXsrv_session **session);
 626 NTSTATUS smbXsrv_session_local_traverse(
 627         struct smbXsrv_client *client,
 628         int (*caller_cb)(struct smbXsrv_session *session,
 629                               void *caller_data),
 630         void *caller_data);
 631 struct smbXsrv_session_global0;
 632 NTSTATUS smbXsrv_session_global_traverse(
 633                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 634                         void *private_data);
 635 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 636                                         struct tevent_context *ev,
 637                                         struct smbXsrv_connection *conn,
 638                                         struct auth_session_info *session_info,
 639                                         uint64_t previous_session_id,
 640                                         uint64_t current_session_id);
 641 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 642
 643 NTSTATUS smbXsrv_tcon_global_init(void);
 644 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 645 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 646 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 647 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 648                              NTTIME now,
 649                              struct smbXsrv_tcon **_tcon);
 650 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 651                              uint16_t tree_id, NTTIME now,
 652                              struct smbXsrv_tcon **tcon);
 653 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client);
 654 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 655 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 656                              NTTIME now,
 657                              struct smbXsrv_tcon **_tcon);
 658 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 659                              uint32_t tree_id, NTTIME now,
 660                              struct smbXsrv_tcon **tcon);
 661 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 662 struct smbXsrv_tcon_global0;
 663 NTSTATUS smbXsrv_tcon_global_traverse(
 664                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 665                         void *private_data);
 666
 667
 668 bool smbXsrv_is_encrypted(uint8_t encryption_flags);
 669 bool smbXsrv_is_partially_encrypted(uint8_t encryption_flags);
 670 bool smbXsrv_set_crypto_flag(uint8_t *flags, uint8_t flag);
 671 bool smbXsrv_is_signed(uint8_t signing_flags);
 672 bool smbXsrv_is_partially_signed(uint8_t signing_flags);
 673
 674 struct smbd_smb2_send_queue {
 675         struct smbd_smb2_send_queue *prev, *next;
 676
 677         DATA_BLOB *sendfile_header;
 678         uint32_t sendfile_body_size;
 679         NTSTATUS *sendfile_status;
 680         struct iovec *vector;
 681         int count;
 682
 683         struct {
 684                 struct tevent_req *req;
 685                 struct timeval timeout;
 686                 uint64_t required_acked_bytes;
 687         } ack;
 688
 689         TALLOC_CTX *mem_ctx;
 690 };
 691
 692 struct smbd_smb2_request {
 693         struct smbd_smb2_request *prev, *next;
 694
 695         struct smbd_server_connection *sconn;
 696         struct smbXsrv_connection *xconn;
 697
 698         struct smbd_smb2_send_queue queue_entry;
 699
 700         /* the session the request operates on, maybe NULL */
 701         struct smbXsrv_session *session;
 702         uint64_t last_session_id;
 703
 704         /* the tcon the request operates on, maybe NULL */
 705         struct smbXsrv_tcon *tcon;
 706         uint32_t last_tid;
 707
 708         int current_idx;
 709         bool do_signing;
 710         /* Was the request encrypted? */
 711         bool was_encrypted;
 712         /* Should we encrypt? */
 713         bool do_encryption;
 714         struct tevent_timer *async_te;
 715         bool compound_related;
 716         NTSTATUS compound_create_err;
 717
 718         /*
 719          * Give the implementation of an SMB2 req a way to tell the SMB2 request
 720          * processing engine that the internal request is going async, while
 721          * preserving synchronous SMB2 behaviour.
 722          */
 723         bool async_internal;
 724
 725         /*
 726          * the encryption key for the whole
 727          * compound chain
 728          */
 729         struct smb2_signing_key *first_enc_key;
 730         /*
 731          * the signing key for the last
 732          * request/response of a compound chain
 733          */
 734         struct smb2_signing_key *last_sign_key;
 735         struct smbXsrv_preauth *preauth;
 736
 737         struct timeval request_time;
 738
 739         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 740
 741         /* fake smb1 request. */
 742         struct smb_request *smb1req;
 743         struct files_struct *compat_chain_fsp;
 744
 745         /*
 746          * Keep track of whether the outstanding request counters
 747          * had been updated in dispatch, so that they need to be
 748          * adapted again in reply.
 749          */
 750         bool request_counters_updated;
 751         uint64_t channel_generation;
 752
 753         /*
 754          * The sub request for async backend calls.
 755          * This is used for SMB2 Cancel.
 756          */
 757         struct tevent_req *subreq;
 758
 759 #define SMBD_SMB2_TF_IOV_OFS 0
 760 #define SMBD_SMB2_HDR_IOV_OFS 1
 761 #define SMBD_SMB2_BODY_IOV_OFS 2
 762 #define SMBD_SMB2_DYN_IOV_OFS 3
 763
 764 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 765
 766 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 767         (&req->dir.vector[(idx)+(ofs)])
 768
 769 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 770         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 771 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 772         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 773 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 774         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 775 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 776         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 777
 778 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 779 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 780 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 781 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 782 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 783 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 784 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 785 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 786 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 787 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 788
 789 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 790 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 791 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 792 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 793 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 794 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 795 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 796 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 797 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 798 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 799
 800 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 801
 802         struct {
 803                 /*
 804                  * vector[0] TRANSPORT HEADER (empty)
 805                  * .
 806                  * vector[1] SMB2_TRANSFORM (optional)
 807                  * vector[2] SMB2
 808                  * vector[3] fixed body
 809                  * vector[4] dynamic body
 810                  * .
 811                  * .
 812                  * .
 813                  * vector[5] SMB2_TRANSFORM (optional)
 814                  * vector[6] SMB2
 815                  * vector[7] fixed body
 816                  * vector[8] dynamic body
 817                  * .
 818                  * .
 819                  * .
 820                  */
 821                 struct iovec *vector;
 822                 int vector_count;
 823                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 824         } in;
 825         struct {
 826                 /* the NBT header is not allocated */
 827                 uint8_t nbt_hdr[4];
 828                 /*
 829                  * vector[0] TRANSPORT HEADER
 830                  * .
 831                  * vector[1] SMB2_TRANSFORM (optional)
 832                  * vector[2] SMB2
 833                  * vector[3] fixed body
 834                  * vector[4] dynamic body
 835                  * .
 836                  * .
 837                  * .
 838                  * vector[5] SMB2_TRANSFORM (empty)
 839                  * vector[6] SMB2
 840                  * vector[7] fixed body
 841                  * vector[8] dynamic body
 842                  * .
 843                  * .
 844                  * .
 845                  */
 846                 struct iovec *vector;
 847                 int vector_count;
 848                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 849 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 850                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 851                 uint8_t _body[0x58];
 852         } out;
 853 };
 854
 855 struct smbd_server_connection;
 856
 857 struct pending_message_list;
 858 struct pending_auth_data;
 859
 860 struct pthreadpool_tevent;
 861 struct dcesrv_context;
 862
 863 struct smbd_server_connection {
 864         const struct tsocket_address *local_address;
 865         const struct tsocket_address *remote_address;
 866         const char *remote_hostname;
 867         struct tevent_context *ev_ctx;
 868         struct messaging_context *msg_ctx;
 869         struct dcesrv_context *dce_ctx;
 870         struct notify_context *notify_ctx;
 871         bool using_smb2;
 872         int trans_num;
 873
 874         size_t num_users;
 875
 876         size_t num_connections;
 877         struct connection_struct *connections;
 878
 879         size_t num_files;
 880         struct files_struct *files;
 881
 882         int real_max_open_files;
 883         struct fsp_singleton_cache fsp_fi_cache;
 884
 885         struct pending_message_list *deferred_open_queue;
 886
 887
 888         /* open directory handles. */
 889         struct {
 890                 struct bitmap *dptr_bmap;
 891                 struct dptr_struct *dirptrs;
 892         } searches;
 893
 894         uint64_t num_requests;
 895
 896         /* Current number of oplocks we have outstanding. */
 897         struct {
 898                 int32_t exclusive_open;
 899                 int32_t level_II_open;
 900                 struct kernel_oplocks *kernel_ops;
 901         } oplocks;
 902
 903         struct notify_mid_map *notify_mid_maps;
 904
 905         struct pthreadpool_tevent *pool;
 906
 907         struct smbXsrv_client *client;
 908 };
 909
 910 extern struct smbXsrv_client *global_smbXsrv_client;
 911
 912 void smbd_init_globals(void);
 913
 914 /****************************************************************************
 915  The buffer we keep around whilst an aio request is in process.
 916 *****************************************************************************/
 917
 918 struct aio_extra {
 919         files_struct *fsp;
 920         struct smb_request *smbreq;
 921         DATA_BLOB outbuf;
 922         struct lock_struct lock;
 923         size_t nbyte;
 924         off_t offset;
 925         bool write_through;
 926 };
 927
 928 #endif /* _SOURCE3_SMBD_GLOBALS_H_ */