source3/smbd/globals.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    smbd globals
   4    Copyright (C) Stefan Metzmacher 2009
   5    Copyright (C) Jeremy Allison 2010
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "system/select.h"
  22 #include "librpc/gen_ndr/smbXsrv.h"
  23 #include "smbprofile.h"
  24
  25 extern int aio_pending_size;
  26 extern int outstanding_aio_calls;
  27
  28 #ifdef USE_DMAPI
  29 struct smbd_dmapi_context;
  30 extern struct smbd_dmapi_context *dmapi_ctx;
  31 #endif
  32
  33 /* how many write cache buffers have been allocated */
  34 extern unsigned int allocated_write_caches;
  35
  36 /* A singleton cache to speed up searching by dev/inode. */
  37 struct fsp_singleton_cache {
  38         files_struct *fsp;
  39         struct file_id id;
  40 };
  41
  42 extern const struct mangle_fns *mangle_fns;
  43
  44 extern unsigned char *chartest;
  45 struct tdb_context;
  46 extern struct tdb_context *tdb_mangled_cache;
  47
  48 /*
  49   this determines how many characters are used from the original filename
  50   in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
  51   The largest possible value is 6.
  52 */
  53 extern unsigned mangle_prefix;
  54
  55 struct msg_state;
  56
  57 extern bool logged_ioctl_message;
  58
  59 extern int trans_num;
  60
  61 extern time_t last_smb_conf_reload_time;
  62 extern time_t last_printer_reload_time;
  63 extern pid_t background_lpq_updater_pid;
  64
  65 /****************************************************************************
  66  structure to hold a linked list of queued messages.
  67  for processing.
  68 ****************************************************************************/
  69 extern uint32_t common_flags2;
  70
  71 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
  72 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
  73
  74 struct sec_ctx {
  75         struct security_unix_token ut;
  76         struct security_token *token;
  77 };
  78 /* A stack of security contexts.  We include the current context as being
  79    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
  80 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
  81 extern int sec_ctx_stack_ndx;
  82 extern bool become_uid_done;
  83 extern bool become_gid_done;
  84
  85 extern connection_struct *last_conn;
  86 extern uint16_t last_flags;
  87
  88 extern uint32_t global_client_caps;
  89
  90 extern uint16_t fnf_handle;
  91
  92 struct conn_ctx {
  93         connection_struct *conn;
  94         uint64_t vuid;
  95 };
  96 /* A stack of current_user connection contexts. */
  97 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  98 extern int conn_ctx_stack_ndx;
  99
 100 struct vfs_init_function_entry;
 101 extern struct vfs_init_function_entry *backends;
 102 extern char *sparse_buf;
 103 extern char *LastDir;
 104
 105 struct smbd_parent_context;
 106 extern struct smbd_parent_context *am_parent;
 107 extern struct memcache *smbd_memcache_ctx;
 108 extern bool exit_firsttime;
 109
 110 struct tstream_context;
 111 struct smbd_smb2_request;
 112
 113 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 114
 115 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 116 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 117
 118 NTSTATUS smbd_do_locking(struct smb_request *req,
 119                          files_struct *fsp,
 120                          uint8_t type,
 121                          int32_t timeout,
 122                          uint16_t num_locks,
 123                          struct smbd_lock_element *locks,
 124                          bool *async);
 125 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 126                            files_struct *fsp,
 127                            uint16_t num_ulocks,
 128                            struct smbd_lock_element *ulocks);
 129
 130 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 131                                TALLOC_CTX *mem_ctx,
 132                                uint16_t info_level,
 133                                files_struct *fsp,
 134                                struct smb_filename *smb_fname,
 135                                bool delete_pending,
 136                                struct timespec write_time_ts,
 137                                struct ea_list *ea_list,
 138                                int lock_data_count,
 139                                char *lock_data,
 140                                uint16_t flags2,
 141                                unsigned int max_data_bytes,
 142                                size_t *fixed_portion,
 143                                char **ppdata,
 144                                unsigned int *pdata_size);
 145
 146 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 147                                 struct smb_request *req,
 148                                 TALLOC_CTX *mem_ctx,
 149                                 uint16_t info_level,
 150                                 files_struct *fsp,
 151                                 struct smb_filename *smb_fname,
 152                                 char **ppdata, int total_data,
 153                                 int *ret_data_size);
 154
 155 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 156                          connection_struct *conn,
 157                          TALLOC_CTX *mem_ctx,
 158                          uint16_t info_level,
 159                          uint16_t flags2,
 160                          unsigned int max_data_bytes,
 161                          size_t *fixed_portion,
 162                          struct smb_filename *smb_fname,
 163                          char **ppdata,
 164                          int *ret_data_len);
 165
 166 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 167                            struct dptr_struct *dirptr,
 168                            const char *mask,
 169                            uint32_t dirtype,
 170                            bool dont_descend,
 171                            bool ask_sharemode,
 172                            bool (*match_fn)(TALLOC_CTX *ctx,
 173                                             void *private_data,
 174                                             const char *dname,
 175                                             const char *mask,
 176                                             char **_fname),
 177                            bool (*mode_fn)(TALLOC_CTX *ctx,
 178                                            void *private_data,
 179                                            struct smb_filename *smb_fname,
 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                                uint8_t align,
 198                                bool do_pad,
 199                                char **ppdata,
 200                                char *base_data,
 201                                char *end_data,
 202                                int space_remaining,
 203                                bool *got_exact_match,
 204                                int *_last_entry_off,
 205                                struct ea_list *name_list);
 206
 207 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 208                                     const struct smb_filename *smb_fname,
 209                                     bool use_privs,
 210                                     uint32_t access_mask,
 211                                     uint32_t *access_mask_out);
 212
 213 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 214
 215 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 216                                          const char *reason,
 217                                          const char *location);
 218 #define smbd_server_connection_terminate(xconn, reason) \
 219         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 220
 221 const char *smb2_opcode_name(uint16_t opcode);
 222 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 223
 224 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 225                              struct smbXsrv_connection **_xconn);
 226
 227 void reply_smb2002(struct smb_request *req, uint16_t choice);
 228 void reply_smb20ff(struct smb_request *req, uint16_t choice);
 229 void smbd_smb2_first_negprot(struct smbXsrv_connection *xconn,
 230                              const uint8_t *inpdu, size_t size);
 231
 232 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 233
 234 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 235                                     NTSTATUS status,
 236                                     DATA_BLOB *info,
 237                                     const char *location);
 238 #define smbd_smb2_request_error(req, status) \
 239         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 240 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 241                                    NTSTATUS status,
 242                                    DATA_BLOB body, DATA_BLOB *dyn,
 243                                    const char *location);
 244 #define smbd_smb2_request_done(req, body, dyn) \
 245         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 246
 247 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
 248                                      struct smbXsrv_session *session,
 249                                      struct smbXsrv_tcon *tcon,
 250                                      struct smbXsrv_open *op,
 251                                      uint8_t oplock_level);
 252 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,
 253                                     uint16_t new_epoch,
 254                                     uint32_t lease_flags,
 255                                     struct smb2_lease_key *lease_key,
 256                                     uint32_t current_lease_state,
 257                                     uint32_t new_lease_state);
 258
 259 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 260                                          struct tevent_req *subreq,
 261                                          uint32_t defer_time);
 262
 263 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 264 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 265 void remove_smb2_chained_fsp(files_struct *fsp);
 266
 267 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 268                                                uint32_t data_length);
 269
 270 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 271                                         size_t expected_body_size);
 272
 273 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 274                                                      const int dialect_count,
 275                                                      uint16_t *dialect);
 276 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 277 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 278 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 279 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 280 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 281 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 282 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 283 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 284 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 285 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 286 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 287 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 288 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 289                                     int err);
 290 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 291 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 292 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 293 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 294 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 295 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 296 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 297 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 298 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 299 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 300                                 struct tevent_immediate *im,
 301                                 void *private_data);
 302
 303 struct deferred_open_record;
 304
 305 /* SMB1 -> SMB2 glue. */
 306 void send_break_message_smb2(files_struct *fsp,
 307                              uint32_t break_from,
 308                              uint32_t break_to);
 309 struct blocking_lock_record *get_pending_smb2req_blr(struct smbd_smb2_request *smb2req);
 310 bool push_blocking_lock_request_smb2( struct byte_range_lock *br_lck,
 311                                 struct smb_request *req,
 312                                 files_struct *fsp,
 313                                 int lock_timeout,
 314                                 int lock_num,
 315                                 uint64_t smblctx,
 316                                 enum brl_type lock_type,
 317                                 enum brl_flavour lock_flav,
 318                                 uint64_t offset,
 319                                 uint64_t count,
 320                                 uint64_t blocking_smblctx);
 321 void process_blocking_lock_queue_smb2(
 322         struct smbd_server_connection *sconn, struct timeval tv_curr);
 323 void cancel_pending_lock_requests_by_fid_smb2(files_struct *fsp,
 324                         struct byte_range_lock *br_lck,
 325                         enum file_close_type close_type);
 326 /* From smbd/smb2_create.c */
 327 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 328 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 329                         struct timeval *p_request_time,
 330                         struct deferred_open_record **open_rec);
 331 bool open_was_deferred_smb2(
 332         struct smbXsrv_connection *xconn, uint64_t mid);
 333 void remove_deferred_open_message_smb2(
 334         struct smbXsrv_connection *xconn, uint64_t mid);
 335 bool schedule_deferred_open_message_smb2(
 336         struct smbXsrv_connection *xconn, uint64_t mid);
 337 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 338                                 struct timeval request_time,
 339                                 struct timeval timeout,
 340                                 struct file_id id,
 341                                 struct deferred_open_record *open_rec);
 342
 343 struct smbXsrv_client;
 344
 345 struct smbXsrv_preauth {
 346         uint8_t sha512_value[64];
 347 };
 348
 349 struct smbXsrv_connection {
 350         struct smbXsrv_connection *prev, *next;
 351
 352         struct smbXsrv_client *client;
 353
 354
 355         const struct tsocket_address *local_address;
 356         const struct tsocket_address *remote_address;
 357         const char *remote_hostname;
 358
 359         struct tevent_context *ev_ctx;
 360         struct messaging_context *msg_ctx;
 361
 362         enum protocol_types protocol;
 363
 364         struct {
 365                 NTSTATUS status;
 366                 int sock;
 367                 struct tevent_fd *fde;
 368
 369                 struct {
 370                         bool got_session;
 371                 } nbt;
 372         } transport;
 373
 374         struct {
 375                 struct {
 376                         /*
 377                          * fd for the fcntl lock and process shared
 378                          * robust mutex to coordinate access to the
 379                          * client socket. When the system supports
 380                          * process shared robust mutexes, those are
 381                          * used. If not, then the fcntl lock will be
 382                          * used.
 383                          */
 384                         int socket_lock_fd;
 385 #ifdef HAVE_ROBUST_MUTEXES
 386                         pthread_mutex_t *socket_mutex;
 387 #endif
 388
 389                         /*
 390                          * fd for the trusted pipe from
 391                          * echo handler child
 392                          */
 393                         int trusted_fd;
 394
 395                         /*
 396                          * fde for the trusted_fd
 397                          */
 398                         struct tevent_fd *trusted_fde;
 399
 400                         /*
 401                          * Reference count for the fcntl lock to
 402                          * allow recursive locks.
 403                          */
 404                         int ref_count;
 405                 } echo_handler;
 406
 407                 struct {
 408                         bool encrypted_passwords;
 409                         bool spnego;
 410                         struct auth4_context *auth_context;
 411                         bool done;
 412                         /*
 413                          * Size of the data we can receive. Set by us.
 414                          * Can be modified by the max xmit parameter.
 415                          */
 416                         int max_recv;
 417                 } negprot;
 418
 419                 struct {
 420                         bool done_sesssetup;
 421                         /*
 422                          * Size of data we can send to client. Set
 423                          *  by the client for all protocols above CORE.
 424                          *  Set by us for CORE protocol.
 425                          */
 426                         int max_send;
 427                 } sessions;
 428                 struct smb_signing_state *signing_state;
 429
 430                 struct {
 431                         uint16_t client_major;
 432                         uint16_t client_minor;
 433                         uint32_t client_cap_low;
 434                         uint32_t client_cap_high;
 435                 } unix_info;
 436
 437                 struct msg_state *msg_state;
 438         } smb1;
 439         struct {
 440                 struct smbd_smb2_request_read_state {
 441                         struct smbd_smb2_request *req;
 442                         struct {
 443                                 uint8_t nbt[NBT_HDR_SIZE];
 444                                 bool done;
 445                         } hdr;
 446                         struct iovec vector;
 447                         bool doing_receivefile;
 448                         size_t min_recv_size;
 449                         size_t pktfull;
 450                         size_t pktlen;
 451                         uint8_t *pktbuf;
 452                 } request_read_state;
 453                 struct smbd_smb2_send_queue *send_queue;
 454                 size_t send_queue_len;
 455
 456                 struct {
 457                         /*
 458                          * seq_low is the lowest sequence number
 459                          * we will accept.
 460                          */
 461                         uint64_t seq_low;
 462                         /*
 463                          * seq_range is the range of credits we have
 464                          * granted from the sequence windows starting
 465                          * at seq_low.
 466                          *
 467                          * This gets incremented when new credits are
 468                          * granted and gets decremented when the
 469                          * lowest sequence number is consumed
 470                          * (when seq_low gets incremented).
 471                          */
 472                         uint16_t seq_range;
 473                         /*
 474                          * The number of credits we have currently granted
 475                          * to the client.
 476                          *
 477                          * This gets incremented when new credits are
 478                          * granted and gets decremented when any credit
 479                          * is comsumed.
 480                          *
 481                          * Note: the decrementing is different compared
 482                          *       to seq_range.
 483                          */
 484                         uint16_t granted;
 485                         /*
 486                          * The maximum number of credits we will ever
 487                          * grant to the client.
 488                          *
 489                          * Typically we will only grant 1/16th of
 490                          * max_credits.
 491                          *
 492                          * This is the "server max credits" parameter.
 493                          */
 494                         uint16_t max;
 495                         /*
 496                          * a bitmap of size max_credits
 497                          */
 498                         struct bitmap *bitmap;
 499                         bool multicredit;
 500                 } credits;
 501
 502                 bool allow_2ff;
 503                 struct {
 504                         uint32_t capabilities;
 505                         struct GUID guid;
 506                         uint16_t security_mode;
 507                         uint16_t num_dialects;
 508                         uint16_t *dialects;
 509                 } client;
 510                 struct {
 511                         uint32_t capabilities;
 512                         struct GUID guid;
 513                         uint16_t security_mode;
 514                         uint16_t dialect;
 515                         uint32_t max_trans;
 516                         uint32_t max_read;
 517                         uint32_t max_write;
 518                         uint16_t cipher;
 519                 } server;
 520
 521                 struct smbXsrv_preauth preauth;
 522
 523                 struct smbd_smb2_request *requests;
 524         } smb2;
 525 };
 526
 527 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 528
 529 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 530 uint32_t smbXsrv_version_global_current(void);
 531
 532 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 533                                         enum protocol_types protocol);
 534
 535 NTSTATUS smbXsrv_session_global_init(void);
 536 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 537                                 NTTIME now,
 538                                 struct smbXsrv_session **_session);
 539 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 540 struct smbXsrv_channel_global0;
 541 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 542                                       const struct smbXsrv_connection *conn,
 543                                       struct smbXsrv_channel_global0 **_c);
 544 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 545                                    const struct smbXsrv_connection *conn,
 546                                    NTTIME now,
 547                                    struct smbXsrv_session_auth0 **_a);
 548 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 549                                         struct tevent_context *ev,
 550                                         struct smbXsrv_session *session,
 551                                         struct smbd_smb2_request *current_req);
 552 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 553 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 554 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_connection *conn);
 555 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 556 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 557                                 uint16_t vuid, NTTIME now,
 558                                 struct smbXsrv_session **session);
 559 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 560 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 561                                      uint64_t session_id, NTTIME now,
 562                                      struct smbXsrv_session **session);
 563 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 564                                        uint64_t session_id, NTTIME now,
 565                                        struct smbXsrv_session **session);
 566 struct smbXsrv_session_global0;
 567 NTSTATUS smbXsrv_session_global_traverse(
 568                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 569                         void *private_data);
 570 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 571                                         struct tevent_context *ev,
 572                                         struct smbXsrv_connection *conn,
 573                                         struct auth_session_info *session_info,
 574                                         uint64_t previous_session_id,
 575                                         uint64_t current_session_id);
 576 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 577
 578 NTSTATUS smbXsrv_tcon_global_init(void);
 579 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 580 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 581 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 582 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 583                              NTTIME now,
 584                              struct smbXsrv_tcon **_tcon);
 585 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 586                              uint16_t tree_id, NTTIME now,
 587                              struct smbXsrv_tcon **tcon);
 588 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_connection *conn);
 589 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 590 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 591                              NTTIME now,
 592                              struct smbXsrv_tcon **_tcon);
 593 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 594                              uint32_t tree_id, NTTIME now,
 595                              struct smbXsrv_tcon **tcon);
 596 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 597 struct smbXsrv_tcon_global0;
 598 NTSTATUS smbXsrv_tcon_global_traverse(
 599                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 600                         void *private_data);
 601
 602 NTSTATUS smbXsrv_open_global_init(void);
 603 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 604                              struct auth_session_info *session_info,
 605                              NTTIME now,
 606                              struct smbXsrv_open **_open);
 607 uint32_t smbXsrv_open_hash(struct smbXsrv_open *_open);
 608 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 609 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 610 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 611 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 612                              uint16_t fnum, NTTIME now,
 613                              struct smbXsrv_open **_open);
 614 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 615 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 616                              uint64_t persistent_id,
 617                              uint64_t volatile_id,
 618                              NTTIME now,
 619                              struct smbXsrv_open **_open);
 620 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 621                                struct auth_session_info *session_info,
 622                                uint64_t persistent_id,
 623                                const struct GUID *create_guid,
 624                                NTTIME now,
 625                                struct smbXsrv_open **_open);
 626 struct smbXsrv_open_global0;
 627 NTSTATUS smbXsrv_open_global_traverse(
 628         int (*fn)(struct smbXsrv_open_global0 *, void *),
 629         void *private_data);
 630
 631 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 632
 633 struct smbd_smb2_send_queue {
 634         struct smbd_smb2_send_queue *prev, *next;
 635
 636         DATA_BLOB *sendfile_header;
 637         NTSTATUS *sendfile_status;
 638         struct iovec *vector;
 639         int count;
 640
 641         TALLOC_CTX *mem_ctx;
 642 };
 643
 644 struct smbd_smb2_request {
 645         struct smbd_smb2_request *prev, *next;
 646
 647         struct smbd_server_connection *sconn;
 648         struct smbXsrv_connection *xconn;
 649
 650         struct smbd_smb2_send_queue queue_entry;
 651
 652         /* the session the request operates on, maybe NULL */
 653         struct smbXsrv_session *session;
 654         uint64_t last_session_id;
 655
 656         /* the tcon the request operates on, maybe NULL */
 657         struct smbXsrv_tcon *tcon;
 658         uint32_t last_tid;
 659
 660         int current_idx;
 661         bool do_signing;
 662         /* Was the request encrypted? */
 663         bool was_encrypted;
 664         /* Should we encrypt? */
 665         bool do_encryption;
 666         struct tevent_timer *async_te;
 667         bool compound_related;
 668
 669         /*
 670          * the encryption key for the whole
 671          * compound chain
 672          */
 673         DATA_BLOB first_key;
 674         /*
 675          * the signing key for the last
 676          * request/response of a compound chain
 677          */
 678         DATA_BLOB last_key;
 679         struct smbXsrv_preauth *preauth;
 680
 681         struct timeval request_time;
 682
 683         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 684
 685         /* fake smb1 request. */
 686         struct smb_request *smb1req;
 687         struct files_struct *compat_chain_fsp;
 688
 689         /*
 690          * The sub request for async backend calls.
 691          * This is used for SMB2 Cancel.
 692          */
 693         struct tevent_req *subreq;
 694
 695 #define SMBD_SMB2_TF_IOV_OFS 0
 696 #define SMBD_SMB2_HDR_IOV_OFS 1
 697 #define SMBD_SMB2_BODY_IOV_OFS 2
 698 #define SMBD_SMB2_DYN_IOV_OFS 3
 699
 700 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 701
 702 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 703         (&req->dir.vector[(idx)+(ofs)])
 704
 705 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 706         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 707 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 708         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 709 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 710         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 711 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 712         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 713
 714 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 715 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 716 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 717 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 718 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 719 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 720 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 721 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 722 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 723 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 724
 725 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 726 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 727 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 728 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 729 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 730 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 731 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 732 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 733 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 734 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 735
 736 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 737
 738         struct {
 739                 /*
 740                  * vector[0] TRANSPORT HEADER (empty)
 741                  * .
 742                  * vector[1] SMB2_TRANSFORM (optional)
 743                  * vector[2] SMB2
 744                  * vector[3] fixed body
 745                  * vector[4] dynamic body
 746                  * .
 747                  * .
 748                  * .
 749                  * vector[5] SMB2_TRANSFORM (optional)
 750                  * vector[6] SMB2
 751                  * vector[7] fixed body
 752                  * vector[8] dynamic body
 753                  * .
 754                  * .
 755                  * .
 756                  */
 757                 struct iovec *vector;
 758                 int vector_count;
 759                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 760         } in;
 761         struct {
 762                 /* the NBT header is not allocated */
 763                 uint8_t nbt_hdr[4];
 764                 /*
 765                  * vector[0] TRANSPORT HEADER
 766                  * .
 767                  * vector[1] SMB2_TRANSFORM (optional)
 768                  * vector[2] SMB2
 769                  * vector[3] fixed body
 770                  * vector[4] dynamic body
 771                  * .
 772                  * .
 773                  * .
 774                  * vector[5] SMB2_TRANSFORM (empty)
 775                  * vector[6] SMB2
 776                  * vector[7] fixed body
 777                  * vector[8] dynamic body
 778                  * .
 779                  * .
 780                  * .
 781                  */
 782                 struct iovec *vector;
 783                 int vector_count;
 784                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 785 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 786                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 787                 uint8_t _body[0x58];
 788         } out;
 789 };
 790
 791 struct smbd_server_connection;
 792 struct user_struct;
 793
 794 struct pending_message_list;
 795 struct pending_auth_data;
 796
 797 struct user_struct {
 798         struct user_struct *next, *prev;
 799         uint64_t vuid; /* Tag for this entry. */
 800
 801         char *session_keystr; /* used by utmp and pam session code.
 802                                  TDB key string */
 803         int homes_snum;
 804
 805         struct auth_session_info *session_info;
 806
 807         struct smbXsrv_session *session;
 808 };
 809
 810 struct smbd_server_connection {
 811         const struct tsocket_address *local_address;
 812         const struct tsocket_address *remote_address;
 813         const char *remote_hostname;
 814         struct tevent_context *ev_ctx;
 815         struct messaging_context *msg_ctx;
 816         struct sys_notify_context *sys_notify_ctx;
 817         struct notify_context *notify_ctx;
 818         bool using_smb2;
 819         int trans_num;
 820
 821         size_t num_users;
 822         struct user_struct *users;
 823
 824         size_t num_connections;
 825         struct connection_struct *connections;
 826
 827         size_t num_files;
 828         struct files_struct *files;
 829
 830         int real_max_open_files;
 831         struct fsp_singleton_cache fsp_fi_cache;
 832
 833         struct pending_message_list *deferred_open_queue;
 834
 835
 836         /* open directory handles. */
 837         struct {
 838                 struct bitmap *dptr_bmap;
 839                 struct dptr_struct *dirptrs;
 840                 int dirhandles_open;
 841         } searches;
 842
 843         uint64_t num_requests;
 844
 845         /* Current number of oplocks we have outstanding. */
 846         struct {
 847                 int32_t exclusive_open;
 848                 int32_t level_II_open;
 849                 struct kernel_oplocks *kernel_ops;
 850         } oplocks;
 851
 852         struct {
 853                 struct notify_mid_map *notify_mid_maps;
 854
 855                 struct {
 856                         /* dlink list we store pending lock records on. */
 857                         struct blocking_lock_record *blocking_lock_queue;
 858                         /* dlink list we move cancelled lock records onto. */
 859                         struct blocking_lock_record *blocking_lock_cancelled_queue;
 860
 861                         /* The event that makes us process our blocking lock queue */
 862                         struct tevent_timer *brl_timeout;
 863
 864                         bool blocking_lock_unlock_state;
 865                         bool blocking_lock_cancel_state;
 866                 } locks;
 867         } smb1;
 868         struct {
 869                 struct {
 870                         /* The event that makes us process our blocking lock queue */
 871                         struct tevent_timer *brl_timeout;
 872                         bool blocking_lock_unlock_state;
 873                 } locks;
 874         } smb2;
 875
 876         /*
 877          * Link into libasys for asynchronous operations
 878          */
 879         struct asys_context *asys_ctx;
 880         struct tevent_fd *asys_fde;
 881
 882         struct smbXsrv_client *client;
 883 };
 884
 885 extern struct smbXsrv_client *global_smbXsrv_client;
 886
 887 void smbd_init_globals(void);