source3/smbd/globals.h

   1 /*
   2    Unix SMB/Netbios implementation.
   3    smbd globals
   4    Copyright (C) Stefan Metzmacher 2009
   5    Copyright (C) Jeremy Allison 2010
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #ifndef _SOURCE3_SMBD_GLOBALS_H_
  22 #define _SOURCE3_SMBD_GLOBALS_H_
  23
  24 #include "system/select.h"
  25 #include "librpc/gen_ndr/smbXsrv.h"
  26 #include "smbprofile.h"
  27
  28 #ifdef USE_DMAPI
  29 struct smbd_dmapi_context;
  30 extern struct smbd_dmapi_context *dmapi_ctx;
  31 #endif
  32
  33 /* A singleton cache to speed up searching by dev/inode. */
  34 struct fsp_singleton_cache {
  35         files_struct *fsp;
  36         struct file_id id;
  37 };
  38
  39 extern const struct mangle_fns *mangle_fns;
  40
  41 extern unsigned char *chartest;
  42 struct tdb_context;
  43 extern struct tdb_context *tdb_mangled_cache;
  44
  45 /*
  46   this determines how many characters are used from the original filename
  47   in the 8.3 mangled name. A larger value leads to a weaker hash and more collisions.
  48   The largest possible value is 6.
  49 */
  50 extern unsigned mangle_prefix;
  51
  52 struct msg_state;
  53
  54 extern bool logged_ioctl_message;
  55
  56 extern int trans_num;
  57
  58 extern time_t last_smb_conf_reload_time;
  59 extern time_t last_printer_reload_time;
  60 extern pid_t background_lpq_updater_pid;
  61
  62 /****************************************************************************
  63  structure to hold a linked list of queued messages.
  64  for processing.
  65 ****************************************************************************/
  66 extern uint32_t common_flags2;
  67
  68 extern struct smb_trans_enc_state *partial_srv_trans_enc_ctx;
  69 extern struct smb_trans_enc_state *srv_trans_enc_ctx;
  70
  71 struct sec_ctx {
  72         struct security_unix_token ut;
  73         struct security_token *token;
  74 };
  75 /* A stack of security contexts.  We include the current context as being
  76    the first one, so there is room for another MAX_SEC_CTX_DEPTH more. */
  77 extern struct sec_ctx sec_ctx_stack[MAX_SEC_CTX_DEPTH + 1];
  78 extern int sec_ctx_stack_ndx;
  79 extern bool become_uid_done;
  80 extern bool become_gid_done;
  81
  82 extern connection_struct *last_conn;
  83 extern uint16_t last_flags;
  84
  85 extern uint32_t global_client_caps;
  86
  87 extern uint16_t fnf_handle;
  88
  89 struct conn_ctx {
  90         connection_struct *conn;
  91         uint64_t vuid;
  92         userdom_struct user_info;
  93 };
  94 /* A stack of current_user connection contexts. */
  95 extern struct conn_ctx conn_ctx_stack[MAX_SEC_CTX_DEPTH];
  96 extern int conn_ctx_stack_ndx;
  97
  98 struct vfs_init_function_entry;
  99 extern struct vfs_init_function_entry *backends;
 100 extern char *sparse_buf;
 101 extern char *LastDir;
 102
 103 struct smbd_parent_context;
 104 extern struct smbd_parent_context *am_parent;
 105 extern struct memcache *smbd_memcache_ctx;
 106 extern bool exit_firsttime;
 107
 108 struct tstream_context;
 109 struct smbd_smb2_request;
 110
 111 DATA_BLOB negprot_spnego(TALLOC_CTX *ctx, struct smbXsrv_connection *xconn);
 112
 113 void smbd_lock_socket(struct smbXsrv_connection *xconn);
 114 void smbd_unlock_socket(struct smbXsrv_connection *xconn);
 115
 116 struct GUID smbd_request_guid(struct smb_request *smb1req, uint16_t idx);
 117
 118 NTSTATUS smbd_do_unlocking(struct smb_request *req,
 119                            files_struct *fsp,
 120                            uint16_t num_ulocks,
 121                            struct smbd_lock_element *ulocks,
 122                            enum brl_flavour lock_flav);
 123
 124 NTSTATUS smbd_do_qfilepathinfo(connection_struct *conn,
 125                                TALLOC_CTX *mem_ctx,
 126                                struct smb_request *req,
 127                                uint16_t info_level,
 128                                files_struct *fsp,
 129                                struct smb_filename *smb_fname,
 130                                bool delete_pending,
 131                                struct timespec write_time_ts,
 132                                struct ea_list *ea_list,
 133                                int lock_data_count,
 134                                char *lock_data,
 135                                uint16_t flags2,
 136                                unsigned int max_data_bytes,
 137                                size_t *fixed_portion,
 138                                char **ppdata,
 139                                unsigned int *pdata_size);
 140
 141 NTSTATUS smbd_do_setfsinfo(connection_struct *conn,
 142                                 struct smb_request *req,
 143                                 TALLOC_CTX *mem_ctx,
 144                                 uint16_t info_level,
 145                                 files_struct *fsp,
 146                                 const DATA_BLOB *pdata);
 147
 148 NTSTATUS smbd_do_setfilepathinfo(connection_struct *conn,
 149                                 struct smb_request *req,
 150                                 TALLOC_CTX *mem_ctx,
 151                                 uint16_t info_level,
 152                                 files_struct *fsp,
 153                                 struct smb_filename *smb_fname,
 154                                 char **ppdata, int total_data,
 155                                 int *ret_data_size);
 156
 157 NTSTATUS smbd_do_qfsinfo(struct smbXsrv_connection *xconn,
 158                          connection_struct *conn,
 159                          TALLOC_CTX *mem_ctx,
 160                          uint16_t info_level,
 161                          uint16_t flags2,
 162                          unsigned int max_data_bytes,
 163                          size_t *fixed_portion,
 164                          struct smb_filename *smb_fname,
 165                          char **ppdata,
 166                          int *ret_data_len);
 167
 168 bool smbd_dirptr_get_entry(TALLOC_CTX *ctx,
 169                            struct dptr_struct *dirptr,
 170                            const char *mask,
 171                            uint32_t dirtype,
 172                            bool dont_descend,
 173                            bool ask_sharemode,
 174                            bool get_dosmode,
 175                            bool (*match_fn)(TALLOC_CTX *ctx,
 176                                             void *private_data,
 177                                             const char *dname,
 178                                             const char *mask,
 179                                             char **_fname),
 180                            bool (*mode_fn)(TALLOC_CTX *ctx,
 181                                            void *private_data,
 182                                            struct smb_filename *smb_fname,
 183                                            bool get_dosmode,
 184                                            uint32_t *_mode),
 185                            void *private_data,
 186                            char **_fname,
 187                            struct smb_filename **_smb_fname,
 188                            uint32_t *_mode,
 189                            long *_prev_offset);
 190
 191 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 192                                connection_struct *conn,
 193                                struct dptr_struct *dirptr,
 194                                uint16_t flags2,
 195                                const char *path_mask,
 196                                uint32_t dirtype,
 197                                int info_level,
 198                                int requires_resume_key,
 199                                bool dont_descend,
 200                                bool ask_sharemode,
 201                                bool get_dosmode,
 202                                uint8_t align,
 203                                bool do_pad,
 204                                char **ppdata,
 205                                char *base_data,
 206                                char *end_data,
 207                                int space_remaining,
 208                                struct smb_filename **smb_fname,
 209                                bool *got_exact_match,
 210                                int *_last_entry_off,
 211                                struct ea_list *name_list,
 212                                struct file_id *file_id);
 213
 214 NTSTATUS smbd_calculate_access_mask(connection_struct *conn,
 215                                     const struct smb_filename *smb_fname,
 216                                     bool use_privs,
 217                                     uint32_t access_mask,
 218                                     uint32_t *access_mask_out);
 219
 220 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 221
 222 void smbXsrv_connection_disconnect_transport(struct smbXsrv_connection *xconn,
 223                                              NTSTATUS status);
 224 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 225                                          const char *reason,
 226                                          const char *location);
 227 #define smbd_server_connection_terminate(xconn, reason) \
 228         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 229
 230 const char *smb2_opcode_name(uint16_t opcode);
 231 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 232 bool smbd_smb2_is_compound(const struct smbd_smb2_request *req);
 233
 234 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 235                              NTTIME now, struct smbXsrv_connection **_xconn);
 236
 237 NTSTATUS reply_smb2002(struct smb_request *req, uint16_t choice);
 238 NTSTATUS reply_smb20ff(struct smb_request *req, uint16_t choice);
 239 NTSTATUS smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 240                                uint64_t expected_seq_low,
 241                                const uint8_t *inpdu, size_t size);
 242
 243 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 244
 245 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 246                                     NTSTATUS status,
 247                                     DATA_BLOB *info,
 248                                     const char *location);
 249 #define smbd_smb2_request_error(req, status) \
 250         smbd_smb2_request_error_ex(req, status, NULL, __location__)
 251 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 252                                    NTSTATUS status,
 253                                    DATA_BLOB body, DATA_BLOB *dyn,
 254                                    const char *location);
 255 #define smbd_smb2_request_done(req, body, dyn) \
 256         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 257
 258 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
 259                                      struct smbXsrv_session *session,
 260                                      struct smbXsrv_tcon *tcon,
 261                                      struct smbXsrv_open *op,
 262                                      uint8_t oplock_level);
 263 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,
 264                                     uint16_t new_epoch,
 265                                     uint32_t lease_flags,
 266                                     struct smb2_lease_key *lease_key,
 267                                     uint32_t current_lease_state,
 268                                     uint32_t new_lease_state);
 269
 270 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 271                                          struct tevent_req *subreq,
 272                                          uint32_t defer_time);
 273
 274 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req);
 275 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 276 void remove_smb2_chained_fsp(files_struct *fsp);
 277
 278 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 279                                                uint32_t data_length);
 280
 281 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 282                                         size_t expected_body_size);
 283
 284 void smb2_request_set_async_internal(struct smbd_smb2_request *req,
 285                                      bool async_internal);
 286
 287 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 288                                                      const int dialect_count,
 289                                                      uint16_t *dialect);
 290 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 291 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 292 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 293 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 294 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 295 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 296 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 297 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 298 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 299 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 300 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 301 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 302 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 303                                     int err);
 304 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 305 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 306 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 307 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 308 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 309 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 310 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 311 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 312 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 313 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 314                                 struct tevent_immediate *im,
 315                                 void *private_data);
 316
 317 struct deferred_open_record;
 318
 319 /* SMB1 -> SMB2 glue. */
 320 void send_break_message_smb2(files_struct *fsp,
 321                              uint32_t break_from,
 322                              uint32_t break_to);
 323 /* From smbd/smb2_create.c */
 324 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 325 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 326                         struct timeval *p_request_time,
 327                         struct deferred_open_record **open_rec);
 328 bool open_was_deferred_smb2(
 329         struct smbXsrv_connection *xconn, uint64_t mid);
 330 void remove_deferred_open_message_smb2(
 331         struct smbXsrv_connection *xconn, uint64_t mid);
 332 bool schedule_deferred_open_message_smb2(
 333         struct smbXsrv_connection *xconn, uint64_t mid);
 334 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 335                                 struct timeval request_time,
 336                                 struct timeval timeout,
 337                                 struct file_id id,
 338                                 struct deferred_open_record *open_rec);
 339
 340 struct smbXsrv_client;
 341
 342 struct smbXsrv_preauth {
 343         uint8_t sha512_value[64];
 344 };
 345
 346 struct smbXsrv_pending_breaks {
 347         struct smbXsrv_pending_breaks *prev, *next;
 348         bool is_lease;
 349         uint64_t data[2];
 350         struct tevent_req *req;
 351 };
 352
 353 struct smbXsrv_connection {
 354         struct smbXsrv_connection *prev, *next;
 355
 356         struct smbXsrv_client *client;
 357
 358         NTTIME connect_time;
 359         const struct tsocket_address *local_address;
 360         const struct tsocket_address *remote_address;
 361         const char *remote_hostname;
 362
 363         enum protocol_types protocol;
 364
 365         struct {
 366                 NTSTATUS status;
 367                 int sock;
 368                 struct tevent_fd *fde;
 369
 370                 struct {
 371                         bool got_session;
 372                 } nbt;
 373         } transport;
 374
 375         struct {
 376                 struct {
 377                         /*
 378                          * fd for the fcntl lock and process shared
 379                          * robust mutex to coordinate access to the
 380                          * client socket. When the system supports
 381                          * process shared robust mutexes, those are
 382                          * used. If not, then the fcntl lock will be
 383                          * used.
 384                          */
 385                         int socket_lock_fd;
 386 #ifdef HAVE_ROBUST_MUTEXES
 387                         pthread_mutex_t *socket_mutex;
 388 #endif
 389
 390                         /*
 391                          * fd for the trusted pipe from
 392                          * echo handler child
 393                          */
 394                         int trusted_fd;
 395
 396                         /*
 397                          * fde for the trusted_fd
 398                          */
 399                         struct tevent_fd *trusted_fde;
 400
 401                         /*
 402                          * Reference count for the fcntl lock to
 403                          * allow recursive locks.
 404                          */
 405                         int ref_count;
 406                 } echo_handler;
 407
 408                 struct {
 409                         bool encrypted_passwords;
 410                         bool spnego;
 411                         struct auth4_context *auth_context;
 412                         bool done;
 413                         /*
 414                          * Size of the data we can receive. Set by us.
 415                          * Can be modified by the max xmit parameter.
 416                          */
 417                         int max_recv;
 418                 } negprot;
 419
 420                 struct {
 421                         bool done_sesssetup;
 422                         /*
 423                          * Size of data we can send to client. Set
 424                          *  by the client for all protocols above CORE.
 425                          *  Set by us for CORE protocol.
 426                          */
 427                         int max_send;
 428                 } sessions;
 429                 struct smb_signing_state *signing_state;
 430
 431                 struct {
 432                         uint16_t client_major;
 433                         uint16_t client_minor;
 434                         uint32_t client_cap_low;
 435                         uint32_t client_cap_high;
 436                 } unix_info;
 437
 438                 struct msg_state *msg_state;
 439         } smb1;
 440         struct {
 441                 struct smbd_smb2_request_read_state {
 442                         struct smbd_smb2_request *req;
 443                         struct {
 444                                 uint8_t nbt[NBT_HDR_SIZE];
 445                                 bool done;
 446                         } hdr;
 447                         struct iovec vector;
 448                         bool doing_receivefile;
 449                         size_t min_recv_size;
 450                         size_t pktfull;
 451                         size_t pktlen;
 452                         uint8_t *pktbuf;
 453                 } request_read_state;
 454                 struct smbd_smb2_send_queue *send_queue;
 455                 size_t send_queue_len;
 456
 457                 struct {
 458                         /*
 459                          * seq_low is the lowest sequence number
 460                          * we will accept.
 461                          */
 462                         uint64_t seq_low;
 463                         /*
 464                          * seq_range is the range of credits we have
 465                          * granted from the sequence windows starting
 466                          * at seq_low.
 467                          *
 468                          * This gets incremented when new credits are
 469                          * granted and gets decremented when the
 470                          * lowest sequence number is consumed
 471                          * (when seq_low gets incremented).
 472                          */
 473                         uint16_t seq_range;
 474                         /*
 475                          * The number of credits we have currently granted
 476                          * to the client.
 477                          *
 478                          * This gets incremented when new credits are
 479                          * granted and gets decremented when any credit
 480                          * is comsumed.
 481                          *
 482                          * Note: the decrementing is different compared
 483                          *       to seq_range.
 484                          */
 485                         uint16_t granted;
 486                         /*
 487                          * The maximum number of credits we will ever
 488                          * grant to the client.
 489                          *
 490                          * Typically we will only grant 1/16th of
 491                          * max_credits.
 492                          *
 493                          * This is the "server max credits" parameter.
 494                          */
 495                         uint16_t max;
 496                         /*
 497                          * a bitmap of size max_credits
 498                          */
 499                         struct bitmap *bitmap;
 500                         bool multicredit;
 501                 } credits;
 502
 503                 bool allow_2ff;
 504                 struct {
 505                         uint32_t capabilities;
 506                         struct GUID guid;
 507                         bool guid_verified;
 508                         uint16_t security_mode;
 509                         uint16_t num_dialects;
 510                         uint16_t *dialects;
 511                 } client;
 512                 struct {
 513                         uint32_t capabilities;
 514                         struct GUID guid;
 515                         uint16_t security_mode;
 516                         uint16_t dialect;
 517                         uint32_t max_trans;
 518                         uint32_t max_read;
 519                         uint32_t max_write;
 520                         uint16_t cipher;
 521                 } server;
 522
 523                 struct smbXsrv_preauth preauth;
 524
 525                 struct smbd_smb2_request *requests;
 526         } smb2;
 527 };
 528
 529 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 530
 531 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 532 uint32_t smbXsrv_version_global_current(void);
 533
 534 struct smbXsrv_client_table;
 535 NTSTATUS smbXsrv_client_global_init(void);
 536 NTSTATUS smbXsrv_client_create(TALLOC_CTX *mem_ctx,
 537                                struct tevent_context *ev_ctx,
 538                                struct messaging_context *msg_ctx,
 539                                NTTIME now,
 540                                struct smbXsrv_client **_client);
 541 NTSTATUS smbXsrv_client_update(struct smbXsrv_client *client);
 542 NTSTATUS smbXsrv_client_remove(struct smbXsrv_client *client);
 543 NTSTATUS smb2srv_client_lookup_global(struct smbXsrv_client *client,
 544                                       struct GUID client_guid,
 545                                       TALLOC_CTX *mem_ctx,
 546                                       struct smbXsrv_client_global0 **_pass);
 547 NTSTATUS smb2srv_client_connection_pass(struct smbd_smb2_request *smb2req,
 548                                         struct smbXsrv_client_global0 *global);
 549
 550 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 551                                         enum protocol_types protocol);
 552
 553 NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx);
 554 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 555                                 NTTIME now,
 556                                 struct smbXsrv_session **_session);
 557 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 558                                      struct smbXsrv_connection *conn,
 559                                      NTTIME now,
 560                                      struct smbXsrv_channel_global0 **_c);
 561 NTSTATUS smbXsrv_session_disconnect_xconn(struct smbXsrv_connection *xconn);
 562 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 563 struct smbXsrv_channel_global0;
 564 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 565                                       const struct smbXsrv_connection *conn,
 566                                       struct smbXsrv_channel_global0 **_c);
 567 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 568                                    const struct smbXsrv_connection *conn,
 569                                    NTTIME now,
 570                                    struct smbXsrv_session_auth0 **_a);
 571 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 572                                      struct smbXsrv_connection *conn,
 573                                      NTTIME now,
 574                                      uint8_t in_flags,
 575                                      uint8_t in_security_mode,
 576                                      struct smbXsrv_session_auth0 **_a);
 577 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 578                                         struct tevent_context *ev,
 579                                         struct smbXsrv_session *session,
 580                                         struct smbd_smb2_request *current_req);
 581 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 582 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 583 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client);
 584 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 585 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 586                                 uint16_t vuid, NTTIME now,
 587                                 struct smbXsrv_session **session);
 588 NTSTATUS smbXsrv_session_info_lookup(struct smbXsrv_client *client,
 589                                      uint64_t session_wire_id,
 590                                      struct auth_session_info **si);
 591 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 592 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 593                                      uint64_t session_id, NTTIME now,
 594                                      struct smbXsrv_session **session);
 595 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 596                                        uint64_t session_id, NTTIME now,
 597                                        struct smbXsrv_session **session);
 598 NTSTATUS get_valid_smbXsrv_session(struct smbXsrv_client *client,
 599                                    uint64_t session_wire_id,
 600                                    struct smbXsrv_session **session);
 601 NTSTATUS smbXsrv_session_local_traverse(
 602         struct smbXsrv_client *client,
 603         int (*caller_cb)(struct smbXsrv_session *session,
 604                               void *caller_data),
 605         void *caller_data);
 606 struct smbXsrv_session_global0;
 607 NTSTATUS smbXsrv_session_global_traverse(
 608                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 609                         void *private_data);
 610 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 611                                         struct tevent_context *ev,
 612                                         struct smbXsrv_connection *conn,
 613                                         struct auth_session_info *session_info,
 614                                         uint64_t previous_session_id,
 615                                         uint64_t current_session_id);
 616 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 617
 618 NTSTATUS smbXsrv_tcon_global_init(void);
 619 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 620 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 621 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 622 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 623                              NTTIME now,
 624                              struct smbXsrv_tcon **_tcon);
 625 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 626                              uint16_t tree_id, NTTIME now,
 627                              struct smbXsrv_tcon **tcon);
 628 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client);
 629 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 630 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 631                              NTTIME now,
 632                              struct smbXsrv_tcon **_tcon);
 633 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 634                              uint32_t tree_id, NTTIME now,
 635                              struct smbXsrv_tcon **tcon);
 636 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 637 struct smbXsrv_tcon_global0;
 638 NTSTATUS smbXsrv_tcon_global_traverse(
 639                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 640                         void *private_data);
 641
 642 NTSTATUS smbXsrv_open_global_init(void);
 643 NTSTATUS smbXsrv_open_create(struct smbXsrv_connection *conn,
 644                              struct auth_session_info *session_info,
 645                              NTTIME now,
 646                              struct smbXsrv_open **_open);
 647 NTSTATUS smbXsrv_open_update(struct smbXsrv_open *_open);
 648 NTSTATUS smbXsrv_open_close(struct smbXsrv_open *op, NTTIME now);
 649 NTSTATUS smb1srv_open_table_init(struct smbXsrv_connection *conn);
 650 NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
 651                              uint16_t fnum, NTTIME now,
 652                              struct smbXsrv_open **_open);
 653 NTSTATUS smb2srv_open_table_init(struct smbXsrv_connection *conn);
 654 NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
 655                              uint64_t persistent_id,
 656                              uint64_t volatile_id,
 657                              NTTIME now,
 658                              struct smbXsrv_open **_open);
 659 NTSTATUS smb2srv_open_lookup_replay_cache(struct smbXsrv_connection *conn,
 660                                           const struct GUID *create_guid,
 661                                           NTTIME now,
 662                                           struct smbXsrv_open **_open);
 663 NTSTATUS smb2srv_open_recreate(struct smbXsrv_connection *conn,
 664                                struct auth_session_info *session_info,
 665                                uint64_t persistent_id,
 666                                const struct GUID *create_guid,
 667                                NTTIME now,
 668                                struct smbXsrv_open **_open);
 669 struct smbXsrv_open_global0;
 670 NTSTATUS smbXsrv_open_global_traverse(
 671         int (*fn)(struct smbXsrv_open_global0 *, void *),
 672         void *private_data);
 673
 674 NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id);
 675 bool smbXsrv_is_encrypted(uint8_t encryption_flags);
 676 bool smbXsrv_is_partially_encrypted(uint8_t encryption_flags);
 677 bool smbXsrv_set_crypto_flag(uint8_t *flags, uint8_t flag);
 678 bool smbXsrv_is_signed(uint8_t signing_flags);
 679 bool smbXsrv_is_partially_signed(uint8_t signing_flags);
 680
 681 struct smbd_smb2_send_queue {
 682         struct smbd_smb2_send_queue *prev, *next;
 683
 684         DATA_BLOB *sendfile_header;
 685         NTSTATUS *sendfile_status;
 686         struct iovec *vector;
 687         int count;
 688         struct tevent_req *req;
 689
 690         TALLOC_CTX *mem_ctx;
 691 };
 692
 693 struct smbd_smb2_request {
 694         struct smbd_smb2_request *prev, *next;
 695
 696         struct smbd_server_connection *sconn;
 697         struct smbXsrv_connection *xconn;
 698
 699         struct smbd_smb2_send_queue queue_entry;
 700
 701         /* the session the request operates on, maybe NULL */
 702         struct smbXsrv_session *session;
 703         uint64_t last_session_id;
 704
 705         /* the tcon the request operates on, maybe NULL */
 706         struct smbXsrv_tcon *tcon;
 707         uint32_t last_tid;
 708
 709         int current_idx;
 710         bool do_signing;
 711         /* Was the request encrypted? */
 712         bool was_encrypted;
 713         /* Should we encrypt? */
 714         bool do_encryption;
 715         struct tevent_timer *async_te;
 716         bool compound_related;
 717
 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         DATA_BLOB first_key;
 730         /*
 731          * the signing key for the last
 732          * request/response of a compound chain
 733          */
 734         DATA_BLOB last_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
 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 notify_context *notify_ctx;
 869         bool using_smb2;
 870         int trans_num;
 871
 872         size_t num_users;
 873
 874         size_t num_connections;
 875         struct connection_struct *connections;
 876
 877         size_t num_files;
 878         struct files_struct *files;
 879
 880         int real_max_open_files;
 881         struct fsp_singleton_cache fsp_fi_cache;
 882
 883         struct pending_message_list *deferred_open_queue;
 884
 885
 886         /* open directory handles. */
 887         struct {
 888                 struct bitmap *dptr_bmap;
 889                 struct dptr_struct *dirptrs;
 890         } searches;
 891
 892         uint64_t num_requests;
 893
 894         /* Current number of oplocks we have outstanding. */
 895         struct {
 896                 int32_t exclusive_open;
 897                 int32_t level_II_open;
 898                 struct kernel_oplocks *kernel_ops;
 899         } oplocks;
 900
 901         struct {
 902                 struct notify_mid_map *notify_mid_maps;
 903         } smb1;
 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 bool smb_has_multiple_channels(struct smbXsrv_client *client);
 915 struct smbXsrv_connection *smb_get_latest_client_connection
 916                                                 (struct smbXsrv_client *client);
 917 struct smbXsrv_connection
 918         *smb_get_next_connection(struct smbXsrv_connection *main_channel,
 919                                  struct smbXsrv_connection *prev_channel);
 920
 921 #endif /* _SOURCE3_SMBD_GLOBALS_H_ */