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 void smbd_dirptr_push_overflow(struct dptr_struct *dirptr,
 186                                char **_fname,
 187                                struct smb_filename **_smb_fname,
 188                                uint32_t mode);
 189 void smbd_dirptr_set_last_name_sent(struct dptr_struct *dirptr,
 190                                     char **_fname);
 191 char *smbd_dirptr_get_last_name_sent(struct dptr_struct *dirptr);
 192
 193 NTSTATUS smbd_dirptr_lanman2_entry(TALLOC_CTX *ctx,
 194                                connection_struct *conn,
 195                                struct dptr_struct *dirptr,
 196                                uint16_t flags2,
 197                                const char *path_mask,
 198                                uint32_t dirtype,
 199                                int info_level,
 200                                int requires_resume_key,
 201                                bool dont_descend,
 202                                bool ask_sharemode,
 203                                bool get_dosmode,
 204                                uint8_t align,
 205                                bool do_pad,
 206                                char **ppdata,
 207                                char *base_data,
 208                                char *end_data,
 209                                int space_remaining,
 210                                struct smb_filename **smb_fname,
 211                                int *_last_entry_off,
 212                                struct ea_list *name_list,
 213                                struct file_id *file_id);
 214
 215 NTSTATUS smbd_calculate_access_mask_fsp(struct files_struct *dirsfp,
 216                         struct files_struct *fsp,
 217                         bool use_privs,
 218                         uint32_t access_mask,
 219                         uint32_t *access_mask_out);
 220
 221 void smbd_notify_cancel_by_smbreq(const struct smb_request *smbreq);
 222
 223 void smbXsrv_connection_disconnect_transport(struct smbXsrv_connection *xconn,
 224                                              NTSTATUS status);
 225 size_t smbXsrv_client_valid_connections(struct smbXsrv_client *client);
 226 void smbd_server_connection_terminate_ex(struct smbXsrv_connection *xconn,
 227                                          const char *reason,
 228                                          const char *location);
 229 #define smbd_server_connection_terminate(xconn, reason) \
 230         smbd_server_connection_terminate_ex(xconn, reason, __location__)
 231
 232 void smbd_server_disconnect_client_ex(struct smbXsrv_client *client,
 233                                       const char *reason,
 234                                       const char *location);
 235 #define smbd_server_disconnect_client(__client, __reason) \
 236         smbd_server_disconnect_client_ex(__client, __reason, __location__)
 237
 238 const char *smb2_opcode_name(uint16_t opcode);
 239 bool smbd_is_smb2_header(const uint8_t *inbuf, size_t size);
 240 bool smbd_smb2_is_compound(const struct smbd_smb2_request *req);
 241 bool smbd_smb2_is_last_in_compound(const struct smbd_smb2_request *req);
 242
 243 NTSTATUS smbd_add_connection(struct smbXsrv_client *client, int sock_fd,
 244                              NTTIME now, struct smbXsrv_connection **_xconn);
 245
 246 NTSTATUS reply_smb2002(struct smb_request *req, uint16_t choice);
 247 NTSTATUS reply_smb20ff(struct smb_request *req, uint16_t choice);
 248 NTSTATUS smbd_smb2_process_negprot(struct smbXsrv_connection *xconn,
 249                                uint64_t expected_seq_low,
 250                                const uint8_t *inpdu, size_t size);
 251 NTSTATUS smb2_multi_protocol_reply_negprot(struct smb_request *req);
 252
 253 DATA_BLOB smbd_smb2_generate_outbody(struct smbd_smb2_request *req, size_t size);
 254
 255 bool smbXsrv_server_multi_channel_enabled(void);
 256
 257 NTSTATUS smbd_smb2_request_error_ex(struct smbd_smb2_request *req,
 258                                     NTSTATUS status,
 259                                     uint8_t error_context_count,
 260                                     DATA_BLOB *info,
 261                                     const char *location);
 262 #define smbd_smb2_request_error(req, status) \
 263         smbd_smb2_request_error_ex(req, status, 0, NULL, __location__)
 264 NTSTATUS smbd_smb2_request_done_ex(struct smbd_smb2_request *req,
 265                                    NTSTATUS status,
 266                                    DATA_BLOB body, DATA_BLOB *dyn,
 267                                    const char *location);
 268 #define smbd_smb2_request_done(req, body, dyn) \
 269         smbd_smb2_request_done_ex(req, NT_STATUS_OK, body, dyn, __location__)
 270
 271 NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_client *client,
 272                                      struct smbXsrv_open *op,
 273                                      uint8_t oplock_level);
 274 NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_client *client,
 275                                     uint16_t new_epoch,
 276                                     uint32_t lease_flags,
 277                                     struct smb2_lease_key *lease_key,
 278                                     uint32_t current_lease_state,
 279                                     uint32_t new_lease_state);
 280
 281 NTSTATUS smbd_smb2_request_pending_queue(struct smbd_smb2_request *req,
 282                                          struct tevent_req *subreq,
 283                                          uint32_t defer_time);
 284
 285 struct smb_request *smbd_smb2_fake_smb_request(struct smbd_smb2_request *req,
 286                                                struct files_struct *fsp);
 287 size_t smbd_smb2_unread_bytes(struct smbd_smb2_request *req);
 288 void remove_smb2_chained_fsp(files_struct *fsp);
 289
 290 NTSTATUS smbd_smb2_request_verify_creditcharge(struct smbd_smb2_request *req,
 291                                                uint32_t data_length);
 292
 293 NTSTATUS smbd_smb2_request_verify_sizes(struct smbd_smb2_request *req,
 294                                         size_t expected_body_size);
 295
 296 void smb2_request_set_async_internal(struct smbd_smb2_request *req,
 297                                      bool async_internal);
 298
 299 enum protocol_types smbd_smb2_protocol_dialect_match(const uint8_t *indyn,
 300                                                      const int dialect_count,
 301                                                      uint16_t *dialect);
 302 NTSTATUS smbd_smb2_request_process_negprot(struct smbd_smb2_request *req);
 303 NTSTATUS smbd_smb2_request_process_sesssetup(struct smbd_smb2_request *req);
 304 NTSTATUS smbd_smb2_request_process_logoff(struct smbd_smb2_request *req);
 305 NTSTATUS smbd_smb2_request_process_tcon(struct smbd_smb2_request *req);
 306 NTSTATUS smbd_smb2_request_process_tdis(struct smbd_smb2_request *req);
 307 NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req);
 308 NTSTATUS smbd_smb2_request_process_close(struct smbd_smb2_request *req);
 309 NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req);
 310 NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req);
 311 NTSTATUS smb2_read_complete(struct tevent_req *req, ssize_t nread, int err);
 312 NTSTATUS smbd_smb2_request_process_write(struct smbd_smb2_request *req);
 313 NTSTATUS smb2_write_complete(struct tevent_req *req, ssize_t nwritten, int err);
 314 NTSTATUS smb2_write_complete_nosync(struct tevent_req *req, ssize_t nwritten,
 315                                     int err);
 316 NTSTATUS smbd_smb2_request_process_lock(struct smbd_smb2_request *req);
 317 NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req);
 318 NTSTATUS smbd_smb2_request_process_keepalive(struct smbd_smb2_request *req);
 319 NTSTATUS smbd_smb2_request_process_query_directory(struct smbd_smb2_request *req);
 320 NTSTATUS smbd_smb2_request_process_notify(struct smbd_smb2_request *req);
 321 NTSTATUS smbd_smb2_request_process_getinfo(struct smbd_smb2_request *req);
 322 NTSTATUS smbd_smb2_request_process_setinfo(struct smbd_smb2_request *req);
 323 NTSTATUS smbd_smb2_request_process_break(struct smbd_smb2_request *req);
 324 NTSTATUS smbd_smb2_request_dispatch(struct smbd_smb2_request *req);
 325 void smbd_smb2_request_dispatch_immediate(struct tevent_context *ctx,
 326                                 struct tevent_immediate *im,
 327                                 void *private_data);
 328
 329 struct deferred_open_record;
 330
 331 /* SMB1 -> SMB2 glue. */
 332 void send_break_message_smb2(files_struct *fsp,
 333                              uint32_t break_from,
 334                              uint32_t break_to);
 335 /* From smbd/smb2_create.c */
 336 int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level);
 337 bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
 338                         struct timeval *p_request_time,
 339                         struct deferred_open_record **open_rec);
 340 bool open_was_deferred_smb2(
 341         struct smbXsrv_connection *xconn, uint64_t mid);
 342 void remove_deferred_open_message_smb2(
 343         struct smbXsrv_connection *xconn, uint64_t mid);
 344 bool schedule_deferred_open_message_smb2(
 345         struct smbXsrv_connection *xconn, uint64_t mid);
 346 bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
 347                                 struct timeval request_time,
 348                                 struct timeval timeout,
 349                                 struct file_id id,
 350                                 struct deferred_open_record *open_rec);
 351
 352 struct smbXsrv_client;
 353
 354 struct smbXsrv_preauth {
 355         uint8_t sha512_value[64];
 356 };
 357
 358 struct smbXsrv_connection {
 359         struct smbXsrv_connection *prev, *next;
 360
 361         struct smbXsrv_client *client;
 362
 363         NTTIME connect_time;
 364         uint64_t channel_id;
 365         const struct tsocket_address *local_address;
 366         const struct tsocket_address *remote_address;
 367         const char *remote_hostname;
 368         bool has_cluster_movable_ip;
 369
 370         enum protocol_types protocol;
 371
 372         struct {
 373                 NTSTATUS status;
 374                 bool terminating;
 375                 struct tevent_queue *shutdown_wait_queue;
 376                 int sock;
 377                 struct tevent_fd *fde;
 378
 379                 struct {
 380                         bool got_session;
 381                 } nbt;
 382         } transport;
 383
 384         struct {
 385                 bool force_unacked_timeout;
 386                 uint64_t unacked_bytes;
 387                 uint32_t rto_usecs;
 388                 struct tevent_req *checker_subreq;
 389                 struct smbd_smb2_send_queue *queue;
 390         } ack;
 391
 392 #if defined(WITH_SMB1SERVER)
 393         struct {
 394                 struct {
 395                         /*
 396                          * fd for the fcntl lock and process shared
 397                          * robust mutex to coordinate access to the
 398                          * client socket. When the system supports
 399                          * process shared robust mutexes, those are
 400                          * used. If not, then the fcntl lock will be
 401                          * used.
 402                          */
 403                         int socket_lock_fd;
 404 #ifdef HAVE_ROBUST_MUTEXES
 405                         pthread_mutex_t *socket_mutex;
 406 #endif
 407
 408                         /*
 409                          * fd for the trusted pipe from
 410                          * echo handler child
 411                          */
 412                         int trusted_fd;
 413
 414                         /*
 415                          * fde for the trusted_fd
 416                          */
 417                         struct tevent_fd *trusted_fde;
 418
 419                         /*
 420                          * Reference count for the fcntl lock to
 421                          * allow recursive locks.
 422                          */
 423                         int ref_count;
 424                 } echo_handler;
 425
 426                 struct {
 427                         bool encrypted_passwords;
 428                         bool spnego;
 429                         struct auth4_context *auth_context;
 430                         bool done;
 431                         /*
 432                          * Size of the data we can receive. Set by us.
 433                          * Can be modified by the max xmit parameter.
 434                          */
 435                         int max_recv;
 436                 } negprot;
 437
 438                 struct {
 439                         bool done_sesssetup;
 440                         /*
 441                          * Size of data we can send to client. Set
 442                          *  by the client for all protocols above CORE.
 443                          *  Set by us for CORE protocol.
 444                          */
 445                         int max_send;
 446                 } sessions;
 447                 struct smb1_signing_state *signing_state;
 448
 449                 struct {
 450                         uint16_t client_major;
 451                         uint16_t client_minor;
 452                         uint32_t client_cap_low;
 453                         uint32_t client_cap_high;
 454                 } unix_info;
 455
 456                 struct msg_state *msg_state;
 457         } smb1;
 458 #endif
 459         struct {
 460                 struct smbd_smb2_request_read_state {
 461                         struct smbd_smb2_request *req;
 462                         struct {
 463                                 uint8_t nbt[NBT_HDR_SIZE];
 464                                 bool done;
 465                         } hdr;
 466                         struct iovec vector;
 467                         bool doing_receivefile;
 468                         size_t min_recv_size;
 469                         size_t pktfull;
 470                         size_t pktlen;
 471                         uint8_t *pktbuf;
 472                 } request_read_state;
 473                 struct smbd_smb2_send_queue *send_queue;
 474                 size_t send_queue_len;
 475
 476                 struct {
 477                         /*
 478                          * seq_low is the lowest sequence number
 479                          * we will accept.
 480                          */
 481                         uint64_t seq_low;
 482                         /*
 483                          * seq_range is the range of credits we have
 484                          * granted from the sequence windows starting
 485                          * at seq_low.
 486                          *
 487                          * This gets incremented when new credits are
 488                          * granted and gets decremented when the
 489                          * lowest sequence number is consumed
 490                          * (when seq_low gets incremented).
 491                          */
 492                         uint16_t seq_range;
 493                         /*
 494                          * The number of credits we have currently granted
 495                          * to the client.
 496                          *
 497                          * This gets incremented when new credits are
 498                          * granted and gets decremented when any credit
 499                          * is comsumed.
 500                          *
 501                          * Note: the decrementing is different compared
 502                          *       to seq_range.
 503                          */
 504                         uint16_t granted;
 505                         /*
 506                          * The maximum number of credits we will ever
 507                          * grant to the client.
 508                          *
 509                          * Typically we will only grant 1/16th of
 510                          * max_credits.
 511                          *
 512                          * This is the "server max credits" parameter.
 513                          */
 514                         uint16_t max;
 515                         /*
 516                          * a bitmap of size max_credits
 517                          */
 518                         struct bitmap *bitmap;
 519                         bool multicredit;
 520                 } credits;
 521
 522                 bool allow_2ff;
 523                 struct {
 524                         uint32_t capabilities;
 525                         struct GUID guid;
 526                         bool guid_verified;
 527                         uint16_t security_mode;
 528                         uint16_t num_dialects;
 529                         uint16_t *dialects;
 530                 } client;
 531                 struct {
 532                         uint32_t capabilities;
 533                         struct GUID guid;
 534                         uint16_t security_mode;
 535                         uint16_t dialect;
 536                         uint32_t max_trans;
 537                         uint32_t max_read;
 538                         uint32_t max_write;
 539                         uint16_t sign_algo;
 540                         uint16_t cipher;
 541                         bool posix_extensions_negotiated;
 542                 } server;
 543
 544                 struct smbXsrv_preauth preauth;
 545
 546                 struct smbd_smb2_request *requests;
 547
 548                 struct {
 549                         uint8_t read_body_padding;
 550                 } smbtorture;
 551
 552                 bool signing_mandatory;
 553         } smb2;
 554 };
 555
 556 const char *smbXsrv_connection_dbg(const struct smbXsrv_connection *xconn);
 557
 558 NTSTATUS smbXsrv_version_global_init(const struct server_id *server_id);
 559 uint32_t smbXsrv_version_global_current(void);
 560
 561 struct smbXsrv_client_table;
 562 NTSTATUS smbXsrv_client_global_init(void);
 563 NTSTATUS smbXsrv_client_create(TALLOC_CTX *mem_ctx,
 564                                struct tevent_context *ev_ctx,
 565                                struct messaging_context *msg_ctx,
 566                                NTTIME now,
 567                                struct smbXsrv_client **_client);
 568 NTSTATUS smbXsrv_client_remove(struct smbXsrv_client *client);
 569 struct tevent_req *smb2srv_client_mc_negprot_send(TALLOC_CTX *mem_ctx,
 570                                                   struct tevent_context *ev,
 571                                                   struct smbd_smb2_request *smb2req);
 572 NTSTATUS smb2srv_client_mc_negprot_recv(struct tevent_req *req);
 573
 574 NTSTATUS smbXsrv_connection_init_tables(struct smbXsrv_connection *conn,
 575                                         enum protocol_types protocol);
 576
 577 NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx);
 578 NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
 579                                 NTTIME now,
 580                                 struct smbXsrv_session **_session);
 581 NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
 582                                      struct smbXsrv_connection *conn,
 583                                      NTTIME now,
 584                                      struct smbXsrv_channel_global0 **_c);
 585 NTSTATUS smbXsrv_session_remove_channel(struct smbXsrv_session *session,
 586                                         struct smbXsrv_connection *xconn);
 587 NTSTATUS smbXsrv_session_disconnect_xconn(struct smbXsrv_connection *xconn);
 588 NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session);
 589 struct smbXsrv_channel_global0;
 590 NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
 591                                       const struct smbXsrv_connection *conn,
 592                                       struct smbXsrv_channel_global0 **_c);
 593 NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
 594                                    const struct smbXsrv_connection *conn,
 595                                    NTTIME now,
 596                                    struct smbXsrv_session_auth0 **_a);
 597 NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
 598                                      struct smbXsrv_connection *conn,
 599                                      NTTIME now,
 600                                      uint8_t in_flags,
 601                                      uint8_t in_security_mode,
 602                                      struct smbXsrv_session_auth0 **_a);
 603 struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
 604                                         struct tevent_context *ev,
 605                                         struct smbXsrv_session *session,
 606                                         struct smbd_smb2_request *current_req);
 607 NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req);
 608 NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session);
 609 NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client);
 610 NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn);
 611 NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
 612                                 uint16_t vuid, NTTIME now,
 613                                 struct smbXsrv_session **session);
 614 NTSTATUS smbXsrv_session_info_lookup(struct smbXsrv_client *client,
 615                                      uint64_t session_wire_id,
 616                                      struct auth_session_info **si);
 617 NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn);
 618 NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
 619                                      uint64_t session_id, NTTIME now,
 620                                      struct smbXsrv_session **session);
 621 NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
 622                                        uint64_t session_id, NTTIME now,
 623                                        struct smbXsrv_session **session);
 624 NTSTATUS smb2srv_session_lookup_global(struct smbXsrv_client *client,
 625                                        uint64_t session_wire_id,
 626                                        TALLOC_CTX *mem_ctx,
 627                                        struct smbXsrv_session **session);
 628 NTSTATUS get_valid_smbXsrv_session(struct smbXsrv_client *client,
 629                                    uint64_t session_wire_id,
 630                                    struct smbXsrv_session **session);
 631 NTSTATUS smbXsrv_session_local_traverse(
 632         struct smbXsrv_client *client,
 633         int (*caller_cb)(struct smbXsrv_session *session,
 634                               void *caller_data),
 635         void *caller_data);
 636 struct smbXsrv_session_global0;
 637 NTSTATUS smbXsrv_session_global_traverse(
 638                         int (*fn)(struct smbXsrv_session_global0 *, void *),
 639                         void *private_data);
 640 struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
 641                                         struct tevent_context *ev,
 642                                         struct smbXsrv_connection *conn,
 643                                         struct auth_session_info *session_info,
 644                                         uint64_t previous_session_id,
 645                                         uint64_t current_session_id);
 646 NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req);
 647
 648 NTSTATUS smbXsrv_tcon_global_init(void);
 649 NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon);
 650 NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid);
 651 NTSTATUS smb1srv_tcon_table_init(struct smbXsrv_connection *conn);
 652 NTSTATUS smb1srv_tcon_create(struct smbXsrv_connection *conn,
 653                              uint32_t session_global_id,
 654                              const char *share_name,
 655                              NTTIME now,
 656                              struct smbXsrv_tcon **_tcon);
 657 NTSTATUS smb1srv_tcon_lookup(struct smbXsrv_connection *conn,
 658                              uint16_t tree_id, NTTIME now,
 659                              struct smbXsrv_tcon **tcon);
 660 NTSTATUS smb1srv_tcon_disconnect_all(struct smbXsrv_client *client);
 661 NTSTATUS smb2srv_tcon_table_init(struct smbXsrv_session *session);
 662 NTSTATUS smb2srv_tcon_create(struct smbXsrv_session *session,
 663                              uint32_t session_global_id,
 664                              uint8_t encryption_flags,
 665                              const char *share_name,
 666                              NTTIME now,
 667                              struct smbXsrv_tcon **_tcon);
 668 NTSTATUS smb2srv_tcon_lookup(struct smbXsrv_session *session,
 669                              uint32_t tree_id, NTTIME now,
 670                              struct smbXsrv_tcon **tcon);
 671 NTSTATUS smb2srv_tcon_disconnect_all(struct smbXsrv_session *session);
 672 struct smbXsrv_tcon_global0;
 673 NTSTATUS smbXsrv_tcon_global_traverse(
 674                         int (*fn)(struct smbXsrv_tcon_global0 *, void *),
 675                         void *private_data);
 676
 677
 678 bool smbXsrv_is_encrypted(uint8_t encryption_flags);
 679 bool smbXsrv_is_partially_encrypted(uint8_t encryption_flags);
 680 bool smbXsrv_set_crypto_flag(uint8_t *flags, uint8_t flag);
 681 bool smbXsrv_is_signed(uint8_t signing_flags);
 682 bool smbXsrv_is_partially_signed(uint8_t signing_flags);
 683
 684 struct smbd_smb2_send_queue {
 685         struct smbd_smb2_send_queue *prev, *next;
 686
 687         DATA_BLOB *sendfile_header;
 688         uint32_t sendfile_body_size;
 689         NTSTATUS *sendfile_status;
 690         struct iovec *vector;
 691         int count;
 692
 693         struct {
 694                 struct tevent_req *req;
 695                 struct timeval timeout;
 696                 uint64_t required_acked_bytes;
 697         } ack;
 698
 699         TALLOC_CTX *mem_ctx;
 700 };
 701
 702 struct smbd_smb2_request {
 703         struct smbd_smb2_request *prev, *next;
 704
 705         struct smbd_server_connection *sconn;
 706         struct smbXsrv_connection *xconn;
 707
 708         struct smbd_smb2_send_queue queue_entry;
 709
 710         /* the session the request operates on, maybe NULL */
 711         struct smbXsrv_session *session;
 712         uint64_t last_session_id;
 713
 714         /* the tcon the request operates on, maybe NULL */
 715         struct smbXsrv_tcon *tcon;
 716         uint32_t last_tid;
 717
 718         int current_idx;
 719         bool do_signing;
 720         /* Was the request encrypted? */
 721         bool was_encrypted;
 722         /* Should we encrypt? */
 723         bool do_encryption;
 724         struct tevent_timer *async_te;
 725         bool compound_related;
 726         NTSTATUS compound_create_err;
 727
 728         /*
 729          * Give the implementation of an SMB2 req a way to tell the SMB2 request
 730          * processing engine that the internal request is going async, while
 731          * preserving synchronous SMB2 behaviour.
 732          */
 733         bool async_internal;
 734
 735         /*
 736          * the encryption key for the whole
 737          * compound chain
 738          */
 739         struct smb2_signing_key *first_enc_key;
 740         /*
 741          * the signing key for the last
 742          * request/response of a compound chain
 743          */
 744         struct smb2_signing_key *last_sign_key;
 745         struct smbXsrv_preauth *preauth;
 746
 747         struct timeval request_time;
 748
 749         SMBPROFILE_IOBYTES_ASYNC_STATE(profile);
 750
 751         /* fake smb1 request. */
 752         struct smb_request *smb1req;
 753         struct files_struct *compat_chain_fsp;
 754
 755         /*
 756          * Keep track of whether the outstanding request counters
 757          * had been updated in dispatch, so that they need to be
 758          * adapted again in reply.
 759          */
 760         bool request_counters_updated;
 761         uint64_t channel_generation;
 762
 763         /*
 764          * The sub request for async backend calls.
 765          * This is used for SMB2 Cancel.
 766          */
 767         struct tevent_req *subreq;
 768
 769 #define SMBD_SMB2_TF_IOV_OFS 0
 770 #define SMBD_SMB2_HDR_IOV_OFS 1
 771 #define SMBD_SMB2_BODY_IOV_OFS 2
 772 #define SMBD_SMB2_DYN_IOV_OFS 3
 773
 774 #define SMBD_SMB2_NUM_IOV_PER_REQ 4
 775
 776 #define SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,ofs) \
 777         (&req->dir.vector[(idx)+(ofs)])
 778
 779 #define SMBD_SMB2_IDX_TF_IOV(req,dir,idx) \
 780         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_TF_IOV_OFS)
 781 #define SMBD_SMB2_IDX_HDR_IOV(req,dir,idx) \
 782         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_HDR_IOV_OFS)
 783 #define SMBD_SMB2_IDX_BODY_IOV(req,dir,idx) \
 784         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_BODY_IOV_OFS)
 785 #define SMBD_SMB2_IDX_DYN_IOV(req,dir,idx) \
 786         SMBD_SMB2_IOV_IDX_OFS(req,dir,idx,SMBD_SMB2_DYN_IOV_OFS)
 787
 788 #define SMBD_SMB2_IN_TF_IOV(req)    SMBD_SMB2_IDX_TF_IOV(req,in,req->current_idx)
 789 #define SMBD_SMB2_IN_TF_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_TF_IOV(req)->iov_base)
 790 #define SMBD_SMB2_IN_HDR_IOV(req)    SMBD_SMB2_IDX_HDR_IOV(req,in,req->current_idx)
 791 #define SMBD_SMB2_IN_HDR_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_HDR_IOV(req)->iov_base)
 792 #define SMBD_SMB2_IN_BODY_IOV(req)   SMBD_SMB2_IDX_BODY_IOV(req,in,req->current_idx)
 793 #define SMBD_SMB2_IN_BODY_PTR(req)   (uint8_t *)(SMBD_SMB2_IN_BODY_IOV(req)->iov_base)
 794 #define SMBD_SMB2_IN_BODY_LEN(req)   (SMBD_SMB2_IN_BODY_IOV(req)->iov_len)
 795 #define SMBD_SMB2_IN_DYN_IOV(req)    SMBD_SMB2_IDX_DYN_IOV(req,in,req->current_idx)
 796 #define SMBD_SMB2_IN_DYN_PTR(req)    (uint8_t *)(SMBD_SMB2_IN_DYN_IOV(req)->iov_base)
 797 #define SMBD_SMB2_IN_DYN_LEN(req)    (SMBD_SMB2_IN_DYN_IOV(req)->iov_len)
 798
 799 #define SMBD_SMB2_OUT_TF_IOV(req)   SMBD_SMB2_IDX_TF_IOV(req,out,req->current_idx)
 800 #define SMBD_SMB2_OUT_TF_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_TF_IOV(req)->iov_base)
 801 #define SMBD_SMB2_OUT_HDR_IOV(req)   SMBD_SMB2_IDX_HDR_IOV(req,out,req->current_idx)
 802 #define SMBD_SMB2_OUT_HDR_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_HDR_IOV(req)->iov_base)
 803 #define SMBD_SMB2_OUT_BODY_IOV(req)  SMBD_SMB2_IDX_BODY_IOV(req,out,req->current_idx)
 804 #define SMBD_SMB2_OUT_BODY_PTR(req)  (uint8_t *)(SMBD_SMB2_OUT_BODY_IOV(req)->iov_base)
 805 #define SMBD_SMB2_OUT_BODY_LEN(req)  (SMBD_SMB2_OUT_BODY_IOV(req)->iov_len)
 806 #define SMBD_SMB2_OUT_DYN_IOV(req)   SMBD_SMB2_IDX_DYN_IOV(req,out,req->current_idx)
 807 #define SMBD_SMB2_OUT_DYN_PTR(req)   (uint8_t *)(SMBD_SMB2_OUT_DYN_IOV(req)->iov_base)
 808 #define SMBD_SMB2_OUT_DYN_LEN(req)   (SMBD_SMB2_OUT_DYN_IOV(req)->iov_len)
 809
 810 #define SMBD_SMB2_SHORT_RECEIVEFILE_WRITE_LEN (SMB2_HDR_BODY + 0x30)
 811
 812         struct {
 813                 /*
 814                  * vector[0] TRANSPORT HEADER (empty)
 815                  * .
 816                  * vector[1] SMB2_TRANSFORM (optional)
 817                  * vector[2] SMB2
 818                  * vector[3] fixed body
 819                  * vector[4] dynamic body
 820                  * .
 821                  * .
 822                  * .
 823                  * vector[5] SMB2_TRANSFORM (optional)
 824                  * vector[6] SMB2
 825                  * vector[7] fixed body
 826                  * vector[8] dynamic body
 827                  * .
 828                  * .
 829                  * .
 830                  */
 831                 struct iovec *vector;
 832                 int vector_count;
 833                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 834         } in;
 835         struct {
 836                 /* the NBT header is not allocated */
 837                 uint8_t nbt_hdr[4];
 838                 /*
 839                  * vector[0] TRANSPORT HEADER
 840                  * .
 841                  * vector[1] SMB2_TRANSFORM (optional)
 842                  * vector[2] SMB2
 843                  * vector[3] fixed body
 844                  * vector[4] dynamic body
 845                  * .
 846                  * .
 847                  * .
 848                  * vector[5] SMB2_TRANSFORM (empty)
 849                  * vector[6] SMB2
 850                  * vector[7] fixed body
 851                  * vector[8] dynamic body
 852                  * .
 853                  * .
 854                  * .
 855                  */
 856                 struct iovec *vector;
 857                 int vector_count;
 858                 struct iovec _vector[1 + SMBD_SMB2_NUM_IOV_PER_REQ];
 859 #define OUTVEC_ALLOC_SIZE (SMB2_HDR_BODY + 9)
 860                 uint8_t _hdr[OUTVEC_ALLOC_SIZE];
 861                 uint8_t _body[0x58];
 862         } out;
 863 };
 864
 865 struct smbd_server_connection;
 866
 867 struct pending_message_list;
 868 struct pending_auth_data;
 869
 870 struct pthreadpool_tevent;
 871 struct dcesrv_context;
 872
 873 struct smbd_server_connection {
 874         const struct tsocket_address *local_address;
 875         const struct tsocket_address *remote_address;
 876         const char *remote_hostname;
 877         struct tevent_context *ev_ctx;
 878         struct messaging_context *msg_ctx;
 879         struct dcesrv_context *dce_ctx;
 880         struct notify_context *notify_ctx;
 881         bool using_smb2;
 882         int trans_num;
 883
 884         size_t num_users;
 885
 886         size_t num_connections;
 887         struct connection_struct *connections;
 888
 889         size_t num_files;
 890         struct files_struct *files;
 891
 892         int real_max_open_files;
 893         struct fsp_singleton_cache fsp_fi_cache;
 894
 895         struct pending_message_list *deferred_open_queue;
 896
 897
 898         /* open directory handles. */
 899         struct {
 900                 struct bitmap *dptr_bmap;
 901                 struct dptr_struct *dirptrs;
 902         } searches;
 903
 904         uint64_t num_requests;
 905
 906         /* Current number of oplocks we have outstanding. */
 907         struct {
 908                 int32_t exclusive_open;
 909                 int32_t level_II_open;
 910                 struct kernel_oplocks *kernel_ops;
 911         } oplocks;
 912
 913         struct notify_mid_map *notify_mid_maps;
 914
 915         struct pthreadpool_tevent *pool;
 916
 917         struct smbXsrv_client *client;
 918 };
 919
 920 extern struct smbXsrv_client *global_smbXsrv_client;
 921
 922 void smbd_init_globals(void);
 923
 924 /****************************************************************************
 925  The buffer we keep around whilst an aio request is in process.
 926 *****************************************************************************/
 927
 928 struct aio_extra {
 929         files_struct *fsp;
 930         struct smb_request *smbreq;
 931         DATA_BLOB outbuf;
 932         struct lock_struct lock;
 933         size_t nbyte;
 934         off_t offset;
 935         bool write_through;
 936 };
 937
 938 #endif /* _SOURCE3_SMBD_GLOBALS_H_ */