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