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