1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 /* 26 * Copyright 2012 Nexenta Systems, Inc. All rights reserved. 27 */ 28 29 #ifndef _NFS4_H 30 #define _NFS4_H 31 32 #include <sys/types.h> 33 #include <sys/vnode.h> 34 #include <sys/fem.h> 35 #include <rpc/rpc.h> 36 #include <nfs/nfs.h> 37 38 #ifdef _KERNEL 39 #include <nfs/nfs4_kprot.h> 40 #include <sys/nvpair.h> 41 #else 42 #include <rpcsvc/nfs4_prot.h> 43 #endif 44 #include <nfs/nfs4_attr.h> 45 #include <sys/acl.h> 46 #include <sys/list.h> 47 48 #ifdef __cplusplus 49 extern "C" { 50 #endif 51 52 #define NFS4_MAX_UTF8STRING 65536 53 #define NFS4_MAX_PATHNAME4 65536 54 #define NFS4_MAX_SECOID4 65536 55 56 #ifdef _KERNEL 57 58 typedef struct nfs4_fhandle { 59 int fh_len; 60 char fh_buf[NFS4_FHSIZE]; 61 } nfs4_fhandle_t; 62 63 #define NFS4_MINORVERSION 0 64 #define CB4_MINORVERSION 0 65 66 /* 67 * Set the fattr4_change variable using a time struct. Note that change 68 * is 64 bits, but timestruc_t is 128 bits in a 64-bit kernel. 69 */ 70 #define NFS4_SET_FATTR4_CHANGE(change, ts) \ 71 { \ 72 change = (ts).tv_sec; \ 73 change <<= 32; \ 74 change |= (uint32_t)((ts).tv_nsec); \ 75 } 76 77 /* 78 * Server lease period. Value is in seconds; Also used for grace period 79 */ 80 extern time_t rfs4_lease_time; 81 82 /* 83 * This set of typedefs and interfaces represent the core or base set 84 * of functionality that backs the NFSv4 server's state related data 85 * structures. Since the NFSv4 server needs inter-RPC state to be 86 * available that is unrelated to the filesystem (in other words, 87 * soft-state), this functionality is needed to maintain that and is 88 * written to be somewhat flexible to adapt to the various types of 89 * data structures contained within the server. 90 * 91 * The basic structure at this level is that the server maintains a 92 * global "database" which consists of a set of tables. Each table 93 * contains a set of like data structures. Each table is indexed by 94 * at least one hash function and in most cases two hashes. Each 95 * table's characteristics is set when it is created at run-time via 96 * rfs4_table_create(). All table creation and related functions are 97 * located in nfs4_state.c. The generic database functionality is 98 * located in nfs4_db.c. 99 */ 100 101 typedef struct rfs4_dbe rfs4_dbe_t; /* basic opaque db entry */ 102 typedef struct rfs4_table rfs4_table_t; /* basic table type */ 103 typedef struct rfs4_index rfs4_index_t; /* index */ 104 typedef struct rfs4_database rfs4_database_t; /* and database */ 105 106 typedef struct { /* opaque entry type for later use */ 107 rfs4_dbe_t *dbe; 108 } *rfs4_entry_t; 109 110 extern rfs4_table_t *rfs4_client_tab; 111 112 /* database, table, index creation entry points */ 113 extern rfs4_database_t *rfs4_database_create(uint32_t); 114 extern void rfs4_database_shutdown(rfs4_database_t *); 115 extern void rfs4_database_destroy(rfs4_database_t *); 116 117 extern void rfs4_database_destroy(rfs4_database_t *); 118 119 extern rfs4_table_t *rfs4_table_create(rfs4_database_t *, char *, 120 time_t, uint32_t, 121 bool_t (*create)(rfs4_entry_t, void *), 122 void (*destroy)(rfs4_entry_t), 123 bool_t (*expiry)(rfs4_entry_t), 124 uint32_t, uint32_t, uint32_t, id_t); 125 extern void rfs4_table_destroy(rfs4_database_t *, rfs4_table_t *); 126 extern rfs4_index_t *rfs4_index_create(rfs4_table_t *, char *, 127 uint32_t (*hash)(void *), 128 bool_t (compare)(rfs4_entry_t, void *), 129 void *(*mkkey)(rfs4_entry_t), bool_t); 130 extern void rfs4_index_destroy(rfs4_index_t *); 131 132 /* Type used to direct rfs4_dbsearch() in what types of records to inspect */ 133 typedef enum {RFS4_DBS_VALID, RFS4_DBS_INVALID} rfs4_dbsearch_type_t; 134 /* search and db entry manipulation entry points */ 135 extern rfs4_entry_t rfs4_dbsearch(rfs4_index_t *, void *, 136 bool_t *, void *, rfs4_dbsearch_type_t); 137 extern void rfs4_dbe_lock(rfs4_dbe_t *); 138 extern void rfs4_dbe_unlock(rfs4_dbe_t *); 139 extern clock_t rfs4_dbe_twait(rfs4_dbe_t *, clock_t); 140 extern void rfs4_dbe_cv_broadcast(rfs4_dbe_t *); 141 extern void rfs4_dbe_hold(rfs4_dbe_t *); 142 extern void rfs4_dbe_hold_nolock(rfs4_dbe_t *); 143 extern void rfs4_dbe_rele_nolock(rfs4_dbe_t *); 144 extern void rfs4_dbe_rele(rfs4_dbe_t *); 145 extern uint32_t rfs4_dbe_refcnt(rfs4_dbe_t *); 146 extern id_t rfs4_dbe_getid(rfs4_dbe_t *); 147 extern void rfs4_dbe_invalidate(rfs4_dbe_t *); 148 extern bool_t rfs4_dbe_is_invalid(rfs4_dbe_t *); 149 extern time_t rfs4_dbe_get_timerele(rfs4_dbe_t *); 150 extern void rfs4_dbe_hide(rfs4_dbe_t *); 151 extern void rfs4_dbe_unhide(rfs4_dbe_t *); 152 #ifdef DEBUG 153 extern bool_t rfs4_dbe_islocked(rfs4_dbe_t *); 154 #endif 155 extern void rfs4_dbe_walk(rfs4_table_t *, 156 void (*callout)(rfs4_entry_t, void *), void *); 157 158 /* 159 * Minimal server stable storage. 160 * 161 * Currently the NFSv4 server will only save the client 162 * ID (the long version) so that it will be able to 163 * grant possible reclaim requests during the infamous 164 * grace_period. 165 */ 166 167 #define RFS4_SS_DIRSIZE 64 * 1024 168 #define NFS4_SS_VERSION 1 169 170 /* handy pathname structure */ 171 typedef struct ss_pn { 172 char *leaf; 173 char pn[MAXPATHLEN]; 174 } rfs4_ss_pn_t; 175 176 /* 177 * The server will build this link list on startup. It represents the 178 * clients that have had valid state on the server in a prior instance. 179 * 180 */ 181 typedef struct rfs4_oldstate { 182 struct rfs4_oldstate *next; 183 struct rfs4_oldstate *prev; 184 rfs4_ss_pn_t *ss_pn; 185 nfs_client_id4 cl_id4; 186 } rfs4_oldstate_t; 187 188 /* 189 * This union is used to overlay the server's internal treatment of 190 * the protocols stateid4 datatype. Therefore, "bits" must not exceed 191 * the size of stateid4 and more importantly should match the size of 192 * stateid4. The chgseq field must the first entry since it overlays 193 * stateid4.seqid. 194 */ 195 typedef union { 196 stateid4 stateid; 197 struct { 198 uint32_t chgseq; /* State changes / protocol's seqid */ 199 uint32_t boottime; /* boot time */ 200 uint32_t type:2; /* stateid_type_t as define below */ 201 uint32_t clnodeid:8; /* cluster server nodeid */ 202 uint32_t ident:22; /* 2^22-1 openowner x fhs */ 203 pid_t pid; /* pid of corresponding lock owner */ 204 } bits; 205 } stateid_t; 206 /* 207 * Note that the way the type field above is defined, this enum must 208 * not have more than 4 members. 209 */ 210 typedef enum {OPENID, LOCKID, DELEGID} stateid_type_t; 211 212 213 /* 214 * Set of RPC credentials used for a particular operation. 215 * Used for operations like SETCLIENTID_CONFIRM where the 216 * credentials needs to match those used at SETCLIENTID. 217 */ 218 typedef void *cred_set_t; /* For now XXX */ 219 220 /* 221 * "wait" struct for use in the open open and lock owner state 222 * structures to provide serialization between server threads that are 223 * handling requests for the same open owner or lock stateid. This 224 * way only one thread will be updating things like sequence ids, 225 * replay cache and stateid at a time. 226 */ 227 typedef struct rfs4_state_wait { 228 uint32_t sw_active; 229 uint32_t sw_wait_count; 230 kmutex_t sw_cv_lock[1]; 231 kcondvar_t sw_cv[1]; 232 } rfs4_state_wait_t; 233 234 extern void rfs4_sw_enter(rfs4_state_wait_t *); 235 extern void rfs4_sw_exit(rfs4_state_wait_t *); 236 237 /* 238 * This enum and the following rfs4_cbinfo_t struct are used to 239 * maintain information about the callback path used from the server 240 * to client for operations like CB_GETATTR and CB_RECALL. The 241 * rfs4_cbinfo_t struct is meant to be encompassed in the client 242 * struct and managed within that structure's locking scheme. 243 * 244 * The various states of the callback path are used by the server to 245 * determine if delegations should initially be provided to a client 246 * and then later on if connectivity has been lost and delegations 247 * should be revoked. 248 */ 249 250 /* 251 * CB_NOCHANGE - Special value used for interfaces within the delegation 252 * code to signify that "no change" has occurred to the 253 * callback path 254 * CB_UNINIT - No callback info provided by the client 255 * CB_NONE - Callback info provided but CB_NULL call 256 * has yet to be attempted 257 * CB_OK - Callback path tested with CB_NULL with success 258 * CB_INPROG - Callback path currently being tested with CB_NULL 259 * CB_FAILED - Callback path was == CB_OK but has failed 260 * with timeout/rpc error 261 * CB_BAD - Callback info provided but CB_NULL failed 262 */ 263 typedef enum { 264 CB_NOCHANGE = 0, 265 CB_UNINIT = 1, 266 CB_NONE = 2, 267 CB_OK = 3, 268 CB_INPROG = 4, 269 CB_FAILED = 5, 270 CB_BAD = 6 271 } rfs4_cbstate_t; 272 273 #define RFS4_CBCH_MAX 10 /* size callback client handle cache */ 274 /* 275 * Callback info for a client. 276 * Client only provides: cb_client4 and cb_ident 277 * The rest of the information is used to track callback path status 278 * and usage. 279 * 280 * cb_state - used as comments for the rfs4_cbstate_t enum indicate 281 * cb_notified_of_cb_path_down - if the callback path was once CB_OK and 282 * has hence CB_FAILED, the client needs to be notified via RENEW. 283 * cb_timefailed - current time when cb_state transitioned from 284 * CB_OK -> CB_FAILED. Meant for observability. When did that happen? 285 * cb_chc_free/cb_chc - cache of client handles for the callback path 286 * cb_ident - SETCLIENTID provided callback_ident value 287 * callback - SETCLIENTID provided cb_client4 value 288 * cb_refcnt - current number of users of this structure's content 289 * protected by cb_lock 290 * cb_badbehavior - how many times did a client do something we didn't like? 291 * cb_lock - lock for contents of cbinfo 292 * cb_cv - used to allow threads to wait on CB_NULL completion 293 * cb_nullcaller - is there a thread currently taking care of 294 * new callback information? 295 * cb_cv_nullcaller - used by the thread doing CB_NULL to wait on 296 * threads that may be using client handles of the current 297 * client handle cache. 298 * newer - new callback info provided by a client and awaiting 299 * CB_NULL testing and move to regular cbinfo. 300 */ 301 typedef struct { 302 rfs4_cbstate_t cb_state; 303 unsigned cb_notified_of_cb_path_down:1; 304 time_t cb_timefailed; 305 int cb_chc_free; 306 CLIENT *cb_chc[RFS4_CBCH_MAX]; 307 uint32_t cb_ident; 308 cb_client4 cb_callback; 309 uint32_t cb_refcnt; 310 uint32_t cb_badbehavior; 311 kmutex_t cb_lock[1]; 312 kcondvar_t cb_cv[1]; 313 bool_t cb_nullcaller; 314 kcondvar_t cb_cv_nullcaller[1]; 315 struct { 316 bool_t cb_new; 317 bool_t cb_confirmed; 318 uint32_t cb_ident; 319 cb_client4 cb_callback; 320 } cb_newer; 321 } rfs4_cbinfo_t; 322 323 /* 324 * A server instance. We can associate sets of clients - via a pointer in 325 * rfs4_client_t - with a given server instance, allowing us to treat clients 326 * in the set differently to clients in other sets. 327 * 328 * Currently used only for Sun Cluster HA-NFS support, to group clients 329 * on NFS resource failover so each set of clients gets its own dedicated 330 * grace period and distributed stable storage data. 331 */ 332 typedef struct rfs4_servinst { 333 int dss_npaths; 334 krwlock_t rwlock; 335 krwlock_t oldstate_lock; 336 time_t start_time; 337 time_t grace_period; 338 rfs4_oldstate_t *oldstate; 339 struct rfs4_dss_path **dss_paths; 340 struct rfs4_servinst *next; 341 struct rfs4_servinst *prev; 342 } rfs4_servinst_t; 343 344 /* 345 * DSS: distributed stable storage 346 */ 347 348 typedef struct rfs4_dss_path { 349 struct rfs4_dss_path *next; /* for insque/remque */ 350 struct rfs4_dss_path *prev; /* for insque/remque */ 351 char *path; 352 struct rfs4_servinst *sip; 353 unsigned index; /* offset in servinst's array */ 354 } rfs4_dss_path_t; 355 356 /* array of paths passed-in from nfsd command-line; stored in nvlist */ 357 char **rfs4_dss_newpaths; 358 uint_t rfs4_dss_numnewpaths; 359 360 /* 361 * Circular doubly-linked list of paths for currently-served RGs. 362 * No locking required: only changed on warmstart. Managed with insque/remque. 363 */ 364 rfs4_dss_path_t *rfs4_dss_pathlist; 365 366 /* nvlists of all DSS paths: current, and before last warmstart */ 367 nvlist_t *rfs4_dss_paths, *rfs4_dss_oldpaths; 368 369 /* 370 * The server maintains a set of state on a per client basis that 371 * matches that of the protocol requirements. A client's state is 372 * rooted with the rfs4_client_t struct of which there is one per 373 * client and is created when SETCLIENTID/SETCLIENTID_CONFIRM are 374 * received. From there, the server then creates rfs4_openowner_t 375 * structs for each new open owner from that client and are initiated 376 * at OPEN/OPEN_CONFIRM (when the open owner is new to the server). 377 * At OPEN, at least two other structures are created, and potentially a 378 * third. rfs4_state_t is created to track the association between an 379 * open owner and a particular file. An rfs4_file_t struct may be 380 * created (if the file is not already open) at OPEN as well. The 381 * rfs4_file_t struct is the only one that is per server and not per 382 * client. The rfs4_deleg_state_t struct is created in the 383 * instance that the server is going to provide a delegation for the 384 * file being OPENed. Finally, the rfs4_lockowner_t is created at the 385 * first use of a lock owner at the server and is a result of the LOCK 386 * operation. The rfs4_lo_state_t struct is then created to represent 387 * the relation between the lock owner and the file. 388 * 389 */ 390 /* 391 * The following ascii art represents each of these data structs and 392 * their references to each other. Note: "<-(x)->" represents the 393 * doubly link lists defined above. 394 * 395 * ____________________ 396 * | | 397 * | rfs4_client_t | 398 * ->| (1),(2) |<- 399 * / |____________________| \ 400 * / ^ \ 401 * / | \ 402 * ____________________ ____________________ ____________________ 403 * | | | | | | 404 * | rfs4_lockowner_t | | rfs4_openowner_t | | rfs4_deleg_state_t | 405 * | | | (3) <-(1)-> | | <-(2)-> | 406 * |____________________| |____________________| |____________________| 407 * ^ ^ | 408 * | | V 409 * ____________________ ____________________ ____________________ 410 * | | | | | | 411 * | rfs4_lo_state_t |->| rfs4_state_t |->| rfs4_file_t | 412 * | <-(4)-> | | (4) <-(3)-> | | | 413 * |____________________| |____________________| |____________________| 414 */ 415 /* 416 * Each of these data types are kept in a separate rfs4_table_t and is 417 * actually encapsulated within a rfs4_dbe_t struct. The various 418 * tables and their construction is done in nfs4_state.c but 419 * documented here to completeness. 420 * 421 * Table Data struct stored Indexed by 422 * ----- ------------------ ---------- 423 * rfs4_client_tab rfs4_client_t nfs_client_id4 424 * clientid4 425 * 426 * rfs4_openowner_tab rfs4_openowner_t open_owner4 427 * 428 * rfs4_state_tab rfs4_state_t open_owner4 | file 429 * stateid 430 * 431 * rfs4_lo_state_tab rfs4_lo_state_t lockowner | stateid 432 * lock_stateid 433 * 434 * rfs4_lockowner_tab rfs4_lockowner_t lockowner 435 * pid 436 * 437 * rfs4_file_tab rfs4_file_t filehandle 438 * 439 * rfs4_deleg_state_tab rfs4_deleg_state_t clientid4 | file 440 * deleg_stateid 441 */ 442 443 /* 444 * The client struct, it is the root of all state for a particular 445 * client. The client is identified by the nfs_client_id4 via 446 * SETCLIENTID and the server returns the clientid4 as short hand reference 447 */ 448 /* 449 * Client struct - as mentioned above it is the root of all state for 450 * a single client as identified by the client supplied nfs_client_id4 451 * 452 * dbe - encapsulation struct 453 * clientid - server assigned short hand reference to client 454 * nfs_client - client supplied identifier for itself 455 * confirm_verf - the value provided to the client for SETCLIENTID_CONFIRM 456 * need_confirm - does this client need to be SETCLIENTID_CONFIRMed? 457 * 458 * unlksys_completed - has an F_UNLKSYS been done for this client which 459 * says that the use of cleanlocks() on individual files 460 * is not required? 461 * can_reclaim - indicates if client is allowed to reclaim after server 462 * start-up (client had previous state at server) 463 * ss_remove - indicates that the rfs4_client_destroy function should 464 * clean up stable storage file. 465 * forced_expire - set if the sysadmin has used clear_locks for this client. 466 * no_referrals - set if the client is Solaris and pre-dates referrals 467 * deleg_revoked - how many delegations have been revoked for this client? 468 * 469 * cp_confirmed - this refers to a confirmed client struct that has 470 * the same nfs_client_id4 as this client struct. When/if this client 471 * struct is confirmed via SETCLINETID_CONFIRM, the previously 472 * confirmed client struct will be "closed" and hence this reference. 473 * 474 * last_access - used to determine if the client has let its lease expire 475 * cbinfo - struct containing all callback related information 476 * cr_set - credentials used for the SETCLIENTID/SETCLIENTID_CONFIRM pair 477 * sysid - the lock manager sysid allocated for this client's file locks 478 * openownerlist - root of openowners list associated with this client 479 * ss_pn - Pathname to the stable storage file. 480 * cl_addr - Clients network address. 481 * server_instance - pointer to the currently associated server instance 482 */ 483 typedef struct rfs4_client { 484 rfs4_dbe_t *rc_dbe; 485 clientid4 rc_clientid; 486 nfs_client_id4 rc_nfs_client; 487 verifier4 rc_confirm_verf; 488 unsigned rc_need_confirm:1; 489 unsigned rc_unlksys_completed:1; 490 unsigned rc_can_reclaim:1; 491 unsigned rc_ss_remove:1; 492 unsigned rc_forced_expire:1; 493 uint_t rc_deleg_revoked; 494 struct rfs4_client *rc_cp_confirmed; 495 time_t rc_last_access; 496 rfs4_cbinfo_t rc_cbinfo; 497 cred_set_t rc_cr_set; 498 sysid_t rc_sysidt; 499 list_t rc_openownerlist; 500 rfs4_ss_pn_t *rc_ss_pn; 501 struct sockaddr_storage rc_addr; 502 rfs4_servinst_t *rc_server_instance; 503 } rfs4_client_t; 504 505 /* 506 * ClntIP struct - holds the diagnosis about whether the client 507 * cannot support referrals. Set to true for old Solaris clients. 508 */ 509 510 typedef struct rfs4_clntip { 511 rfs4_dbe_t *ri_dbe; 512 struct sockaddr_storage ri_addr; 513 unsigned ri_no_referrals:1; 514 } rfs4_clntip_t; 515 516 /* 517 * The openowner contains the client supplied open_owner4 as well as 518 * the matching sequence id and is used to track the client's usage of 519 * the open_owner4. Note that a reply is saved here as well for 520 * processing of retransmissions. 521 * 522 * dbe - encapsulation struct 523 * client - reference to rfs4_client_t for this openowner 524 * owner - actual client supplied open_owner4 525 * need_confirm - does this openowner need to be OPEN_CONFIRMed 526 * postpone_confirm - set if error received on first use of open_owner 527 * state2confirm - what stateid4 should be used on the OPEN_CONFIRM 528 * open_seqid - what is the next open_seqid expected for this openowner 529 * oo_sw - used to serialize access to the open seqid/reply handling 530 * cr_set - credential used for the OPEN 531 * statelist - root of state struct list associated with this openowner 532 * node - node for client struct list of openowners 533 * reply_fh - open replay processing needs the filehandle so that it is 534 * able to reset the current filehandle for appropriate compound 535 * processing and reply. 536 * reply - last reply sent in relation to this openowner 537 */ 538 typedef struct rfs4_openowner { 539 rfs4_dbe_t *ro_dbe; 540 rfs4_client_t *ro_client; 541 open_owner4 ro_owner; 542 unsigned ro_need_confirm:1; 543 unsigned ro_postpone_confirm:1; 544 seqid4 ro_open_seqid; 545 rfs4_state_wait_t ro_sw; 546 cred_set_t ro_cr_set; 547 list_t ro_statelist; 548 list_node_t ro_node; 549 nfs_fh4 ro_reply_fh; 550 nfs_resop4 ro_reply; 551 } rfs4_openowner_t; 552 553 /* 554 * This state struct represents the association between an openowner 555 * and a file that has been OPENed by that openowner. 556 * 557 * dbe - encapsulation struct 558 * stateid - server provided stateid 559 * owner - reference back to the openowner for this state 560 * finfo - reference to the open file for this state 561 * open_access - how did the openowner OPEN the file (access) 562 * open_deny - how did the openowner OPEN the file (deny) 563 * share_access - what share reservation is on the file (access) 564 * share_deny - what share reservation is on the file (deny) 565 * closed - has this file been closed? 566 * lostatelist - root of list of lo_state associated with this state/file 567 * node - node for state struct list of states 568 */ 569 typedef struct rfs4_state { 570 rfs4_dbe_t *rs_dbe; 571 stateid_t rs_stateid; 572 rfs4_openowner_t *rs_owner; 573 struct rfs4_file *rs_finfo; 574 uint32_t rs_open_access; 575 uint32_t rs_open_deny; 576 uint32_t rs_share_access; 577 uint32_t rs_share_deny; 578 unsigned rs_closed:1; 579 list_t rs_lostatelist; 580 list_node_t rs_node; 581 } rfs4_state_t; 582 583 /* 584 * Lockowner - track the lockowner and its related info 585 * 586 * dbe - encapsulation struct 587 * client - reference to the client 588 * owner - lockowner supplied by the client 589 * pid - local identifier used for file locking 590 */ 591 typedef struct rfs4_lockowner { 592 rfs4_dbe_t *rl_dbe; 593 rfs4_client_t *rl_client; 594 lock_owner4 rl_owner; 595 pid_t rl_pid; 596 } rfs4_lockowner_t; 597 598 /* 599 * Lockowner_state associated with a state struct and lockowner 600 * 601 * dbe - encapsulation struct 602 * state - reference back to state struct for open file 603 * lockid - stateid for this lockowner/state 604 * locker - reference to lockowner 605 * seqid - sequence id for this lockowner/state 606 * skip_seqid_check - used on initialization of struct 607 * locks_cleaned - have all locks been released for this lockowner/file? 608 * lock_completed - successful LOCK with lockowner/file? 609 * ls_sw - used to serialize update seqid/reply/stateid handling 610 * node - node for state struct list of lo_states 611 * reply - last reply sent in relation to this lockowner/state 612 */ 613 typedef struct rfs4_lo_state { 614 rfs4_dbe_t *rls_dbe; 615 rfs4_state_t *rls_state; 616 stateid_t rls_lockid; 617 rfs4_lockowner_t *rls_locker; 618 seqid4 rls_seqid; 619 unsigned rls_skip_seqid_check:1; 620 unsigned rls_locks_cleaned:1; 621 unsigned rls_lock_completed:1; 622 rfs4_state_wait_t rls_sw; 623 list_node_t rls_node; 624 nfs_resop4 rls_reply; 625 } rfs4_lo_state_t; 626 627 /* 628 * Delegation state - per client 629 * 630 * dbe - encapsulation struct 631 * dtype - type of delegation (NONE, READ, WRITE) 632 * delegid - stateid for this delegation 633 * time_granted - time this delegation was assigned to client 634 * time_recalled - time when the server started recall process 635 * time_revoked - if revoked, time that the revoke occurred 636 * finfo - reference to the file associated with this delegation 637 * client - reference to client for which this delegation is associated 638 * node - list of delegations for the file (WRITE == 1, READ == ) 639 */ 640 typedef struct rfs4_deleg_state { 641 rfs4_dbe_t *rds_dbe; 642 open_delegation_type4 rds_dtype; 643 stateid_t rds_delegid; 644 time_t rds_time_granted; 645 time_t rds_time_recalled; 646 time_t rds_time_revoked; 647 struct rfs4_file *rds_finfo; 648 rfs4_client_t *rds_client; 649 list_node_t rds_node; 650 } rfs4_deleg_state_t; 651 652 /* 653 * Delegation info associated with the file 654 * 655 * dtype - type of delegation for file (NONE, READ, WRITE) 656 * time_returned - time that last delegation was returned for file 657 * time_recalled - time that recall sequence started 658 * time_lastgrant - time that last delegation was provided to a client 659 * time_lastwrite - time of last write to use the delegation stateid 660 * time_rm_delayed - time of last remove/rename which was DELAYed 661 * rdgrants - how many read delegations have been provided for this file 662 * wrgrants - how many write delegations provided (can only be one) 663 * recall_count - how many recall threads are outstanding 664 * recall_lock - lock to protect contents of this struct 665 * recall_cv - condition var for the "parent" thread to wait upon 666 * deleg_change_grant - value for change attribute at time of write grant 667 * deleg_change - most recent value of change obtained from client 668 * deleg_change_ts - time of last deleg_change update 669 * ever_recalled - has this particular delegation ever been recalled? 670 * dont_grant - file deletion is impending, don't grant a delegation 671 * conflicted_client - clientid of the client that caused a CB_RECALL 672 * to occur. This is used for delegation policy (should a delegation 673 * be granted shortly after it has been returned?) 674 */ 675 typedef struct rfs4_dinfo { 676 open_delegation_type4 rd_dtype; 677 time_t rd_time_returned; 678 time_t rd_time_recalled; 679 time_t rd_time_lastgrant; 680 time_t rd_time_lastwrite; 681 time_t rd_time_rm_delayed; 682 uint32_t rd_rdgrants; 683 uint32_t rd_wrgrants; 684 int32_t rd_recall_count; 685 kmutex_t rd_recall_lock[1]; 686 kcondvar_t rd_recall_cv[1]; 687 bool_t rd_ever_recalled; 688 uint32_t rd_hold_grant; 689 clientid4 rd_conflicted_client; 690 } rfs4_dinfo_t; 691 692 /* 693 * File 694 * 695 * dbe - encapsulation struct 696 * vp - vnode for the file that is open or has a delegation 697 * filehandle - the filehandle generated by the server for this file 698 * delegstatelist - root of delegation list for this file 699 * dinfo - see struct definition above 700 * share_deny - union of all deny modes on file 701 * share_access - union of all access modes on file 702 * access_read - count of read access 703 * access_write - count of write access 704 * deny_read - count of deny reads 705 * deny_write - count of deny writes 706 * file_rwlock - lock for serializing the removal of a file while 707 * the state structures are active within the server 708 * 709 * The only requirement for locking file_rwlock is that the 710 * caller have a reference to the containing rfs4_file. The dbe 711 * lock may or may not be held for lock/unlock of file_rwlock. 712 * As mentioned above, the file_rwlock is used for serialization 713 * of file removal and more specifically reference to the held 714 * vnode (e.g. vp). 715 */ 716 typedef struct rfs4_file { 717 rfs4_dbe_t *rf_dbe; 718 vnode_t *rf_vp; 719 nfs_fh4 rf_filehandle; 720 list_t rf_delegstatelist; 721 rfs4_dinfo_t rf_dinfo; 722 uint32_t rf_share_deny; 723 uint32_t rf_share_access; 724 uint32_t rf_access_read; 725 uint32_t rf_access_write; 726 uint32_t rf_deny_read; 727 uint32_t rf_deny_write; 728 krwlock_t rf_file_rwlock; 729 } rfs4_file_t; 730 731 extern int rfs4_seen_first_compound; /* set first time we see one */ 732 733 extern rfs4_servinst_t *rfs4_cur_servinst; /* current server instance */ 734 extern kmutex_t rfs4_servinst_lock; /* protects linked list */ 735 extern void rfs4_servinst_create(int, int, char **); 736 extern void rfs4_servinst_destroy_all(void); 737 extern void rfs4_servinst_assign(rfs4_client_t *, 738 rfs4_servinst_t *); 739 extern rfs4_servinst_t *rfs4_servinst(rfs4_client_t *); 740 extern int rfs4_clnt_in_grace(rfs4_client_t *); 741 extern int rfs4_servinst_in_grace(rfs4_servinst_t *); 742 extern int rfs4_servinst_grace_new(rfs4_servinst_t *); 743 extern void rfs4_grace_start(rfs4_servinst_t *); 744 extern void rfs4_grace_start_new(void); 745 extern void rfs4_grace_reset_all(void); 746 extern void rfs4_ss_oldstate(rfs4_oldstate_t *, char *, char *); 747 extern void rfs4_dss_readstate(int, char **); 748 749 /* 750 * rfs4_deleg_policy is used to signify the server's global delegation 751 * policy. The default is to NEVER delegate files and the 752 * administrator must configure the server to enable delegations. 753 * 754 * The disable/enable delegation functions are used to eliminate a 755 * race with exclusive creates. 756 */ 757 typedef enum { 758 SRV_NEVER_DELEGATE = 0, 759 SRV_NORMAL_DELEGATE = 1 760 } srv_deleg_policy_t; 761 762 extern srv_deleg_policy_t rfs4_deleg_policy; 763 extern kmutex_t rfs4_deleg_lock; 764 extern void rfs4_disable_delegation(void), rfs4_enable_delegation(void); 765 766 /* 767 * Request types for delegation. These correspond with 768 * open_delegation_type4 with the addition of a new value, DELEG_ANY, 769 * to reqequest any delegation. 770 */ 771 typedef enum { 772 DELEG_NONE = 0, /* Corresponds to OPEN_DELEG_NONE */ 773 DELEG_READ = 1, /* Corresponds to OPEN_DELEG_READ */ 774 DELEG_WRITE = 2, /* Corresponds to OPEN_DELEG_WRITE */ 775 DELEG_ANY = -1 /* New value to request any delegation type */ 776 } delegreq_t; 777 778 #define NFS4_DELEG4TYPE2REQTYPE(x) (delegreq_t)(x) 779 780 /* 781 * Various interfaces to manipulate the state structures introduced 782 * above 783 */ 784 extern kmutex_t rfs4_state_lock; 785 extern void rfs4_clean_state_exi(struct exportinfo *exi); 786 extern void rfs4_free_reply(nfs_resop4 *); 787 extern void rfs4_copy_reply(nfs_resop4 *, nfs_resop4 *); 788 789 /* rfs4_client_t handling */ 790 extern rfs4_client_t *rfs4_findclient(nfs_client_id4 *, 791 bool_t *, rfs4_client_t *); 792 extern rfs4_client_t *rfs4_findclient_by_id(clientid4, bool_t); 793 extern rfs4_client_t *rfs4_findclient_by_addr(struct sockaddr *); 794 extern void rfs4_client_rele(rfs4_client_t *); 795 extern void rfs4_client_close(rfs4_client_t *); 796 extern void rfs4_client_state_remove(rfs4_client_t *); 797 extern void rfs4_client_scv_next(rfs4_client_t *); 798 extern void rfs4_update_lease(rfs4_client_t *); 799 extern bool_t rfs4_lease_expired(rfs4_client_t *); 800 extern nfsstat4 rfs4_check_clientid(clientid4 *, int); 801 802 /* rfs4_clntip_t handling */ 803 extern rfs4_clntip_t *rfs4_find_clntip(struct sockaddr *, bool_t *); 804 extern void rfs4_invalidate_clntip(struct sockaddr *); 805 806 /* rfs4_openowner_t handling */ 807 extern rfs4_openowner_t *rfs4_findopenowner(open_owner4 *, bool_t *, seqid4); 808 extern void rfs4_update_open_sequence(rfs4_openowner_t *); 809 extern void rfs4_update_open_resp(rfs4_openowner_t *, 810 nfs_resop4 *, nfs_fh4 *); 811 extern void rfs4_openowner_rele(rfs4_openowner_t *); 812 extern void rfs4_free_opens(rfs4_openowner_t *, bool_t, bool_t); 813 814 /* rfs4_lockowner_t handling */ 815 extern rfs4_lockowner_t *rfs4_findlockowner(lock_owner4 *, bool_t *); 816 extern rfs4_lockowner_t *rfs4_findlockowner_by_pid(pid_t); 817 extern void rfs4_lockowner_rele(rfs4_lockowner_t *); 818 819 /* rfs4_state_t handling */ 820 extern rfs4_state_t *rfs4_findstate_by_owner_file(rfs4_openowner_t *, 821 rfs4_file_t *, bool_t *); 822 extern void rfs4_state_rele(rfs4_state_t *); 823 extern void rfs4_state_close(rfs4_state_t *, bool_t, 824 bool_t, cred_t *); 825 extern void rfs4_release_share_lock_state(rfs4_state_t *, 826 cred_t *, bool_t); 827 extern void rfs4_close_all_state(rfs4_file_t *); 828 829 /* rfs4_lo_state_t handling */ 830 extern rfs4_lo_state_t *rfs4_findlo_state_by_owner(rfs4_lockowner_t *, 831 rfs4_state_t *, bool_t *); 832 extern void rfs4_lo_state_rele(rfs4_lo_state_t *, bool_t); 833 extern void rfs4_update_lock_sequence(rfs4_lo_state_t *); 834 extern void rfs4_update_lock_resp(rfs4_lo_state_t *, 835 nfs_resop4 *); 836 837 /* rfs4_file_t handling */ 838 extern rfs4_file_t *rfs4_findfile(vnode_t *, nfs_fh4 *, bool_t *); 839 extern rfs4_file_t *rfs4_findfile_withlock(vnode_t *, nfs_fh4 *, 840 bool_t *); 841 extern void rfs4_file_rele(rfs4_file_t *); 842 843 /* General collection of "get state" functions */ 844 extern nfsstat4 rfs4_get_state(stateid4 *, rfs4_state_t **, 845 rfs4_dbsearch_type_t); 846 extern nfsstat4 rfs4_get_deleg_state(stateid4 *, 847 rfs4_deleg_state_t **); 848 extern nfsstat4 rfs4_get_lo_state(stateid4 *, rfs4_lo_state_t **, 849 bool_t); 850 extern nfsstat4 rfs4_check_stateid(int, vnode_t *, stateid4 *, 851 bool_t, bool_t *, bool_t, 852 caller_context_t *); 853 extern int rfs4_check_stateid_seqid(rfs4_state_t *, stateid4 *); 854 extern int rfs4_check_lo_stateid_seqid(rfs4_lo_state_t *, 855 stateid4 *); 856 857 /* return values for rfs4_check_stateid_seqid() */ 858 #define NFS4_CHECK_STATEID_OKAY 1 859 #define NFS4_CHECK_STATEID_OLD 2 860 #define NFS4_CHECK_STATEID_BAD 3 861 #define NFS4_CHECK_STATEID_EXPIRED 4 862 #define NFS4_CHECK_STATEID_REPLAY 5 863 #define NFS4_CHECK_STATEID_CLOSED 6 864 #define NFS4_CHECK_STATEID_UNCONFIRMED 7 865 866 /* delay() time that server is willing to briefly wait for a delegreturn */ 867 #define NFS4_DELEGATION_CONFLICT_DELAY (hz/10) 868 869 /* 870 * Interfaces for handling of callback's client handle cache and 871 * callback interfaces themselves. 872 */ 873 extern void rfs4_cbinfo_free(rfs4_cbinfo_t *); 874 extern void rfs4_client_setcb(rfs4_client_t *, cb_client4 *, 875 uint32_t); 876 extern void rfs4_deleg_cb_check(rfs4_client_t *); 877 extern nfsstat4 rfs4_vop_getattr(vnode_t *, vattr_t *, int, cred_t *); 878 879 /* rfs4_deleg_state_t handling and other delegation interfaces */ 880 extern rfs4_deleg_state_t *rfs4_finddeleg(rfs4_state_t *, bool_t *); 881 extern rfs4_deleg_state_t *rfs4_finddelegstate(stateid_t *); 882 extern bool_t rfs4_check_recall(rfs4_state_t *, uint32_t); 883 extern void rfs4_recall_deleg(rfs4_file_t *, 884 bool_t, rfs4_client_t *); 885 extern int rfs4_get_deleg(rfs4_state_t *, open_delegation_type4, 886 open_delegation_type4 (*policy)(rfs4_state_t *, 887 open_delegation_type4 dtype)); 888 extern rfs4_deleg_state_t *rfs4_grant_delegation(delegreq_t, rfs4_state_t *, 889 int *); 890 extern void rfs4_set_deleg_response(rfs4_deleg_state_t *, 891 open_delegation4 *, nfsace4 *, int); 892 extern void rfs4_return_deleg(rfs4_deleg_state_t *, bool_t); 893 extern bool_t rfs4_is_deleg(rfs4_state_t *); 894 extern void rfs4_deleg_state_rele(rfs4_deleg_state_t *); 895 extern bool_t rfs4_check_delegated_byfp(int, rfs4_file_t *, 896 bool_t, bool_t, bool_t, clientid4 *); 897 extern void rfs4_clear_dont_grant(rfs4_file_t *); 898 899 /* 900 * nfs4 monitored operations. 901 */ 902 extern int deleg_rd_open(femarg_t *, int, cred_t *, caller_context_t *); 903 extern int deleg_wr_open(femarg_t *, int, cred_t *, caller_context_t *); 904 extern int deleg_wr_read(femarg_t *, uio_t *, int, cred_t *, 905 caller_context_t *); 906 extern int deleg_rd_write(femarg_t *, uio_t *, int, cred_t *, 907 caller_context_t *); 908 extern int deleg_wr_write(femarg_t *, uio_t *, int, cred_t *, 909 caller_context_t *); 910 extern int deleg_rd_setattr(femarg_t *, vattr_t *, int, cred_t *, 911 caller_context_t *); 912 extern int deleg_wr_setattr(femarg_t *, vattr_t *, int, cred_t *, 913 caller_context_t *); 914 extern int deleg_rd_rwlock(femarg_t *, int, caller_context_t *); 915 extern int deleg_wr_rwlock(femarg_t *, int, caller_context_t *); 916 extern int deleg_rd_space(femarg_t *, int, flock64_t *, int, offset_t, cred_t *, 917 caller_context_t *); 918 extern int deleg_wr_space(femarg_t *, int, flock64_t *, int, offset_t, cred_t *, 919 caller_context_t *); 920 extern int deleg_rd_setsecattr(femarg_t *, vsecattr_t *, int, cred_t *, 921 caller_context_t *); 922 extern int deleg_wr_setsecattr(femarg_t *, vsecattr_t *, int, cred_t *, 923 caller_context_t *); 924 extern int deleg_rd_vnevent(femarg_t *, vnevent_t, vnode_t *, char *, 925 caller_context_t *); 926 extern int deleg_wr_vnevent(femarg_t *, vnevent_t, vnode_t *, char *, 927 caller_context_t *); 928 929 extern void rfs4_mon_hold(void *); 930 extern void rfs4_mon_rele(void *); 931 932 extern fem_t *deleg_rdops; 933 extern fem_t *deleg_wrops; 934 935 extern int rfs4_share(rfs4_state_t *, uint32_t, uint32_t); 936 extern int rfs4_unshare(rfs4_state_t *); 937 extern void rfs4_set_deleg_policy(srv_deleg_policy_t); 938 #ifdef DEBUG 939 #define NFS4_DEBUG(var, args) if (var) cmn_err args 940 941 extern int rfs4_debug; 942 extern int nfs4_client_attr_debug; 943 extern int nfs4_client_state_debug; 944 extern int nfs4_client_shadow_debug; 945 extern int nfs4_client_lock_debug; 946 extern int nfs4_client_lease_debug; 947 extern int nfs4_seqid_sync; 948 extern int nfs4_client_map_debug; 949 extern int nfs4_client_inactive_debug; 950 extern int nfs4_client_recov_debug; 951 extern int nfs4_client_failover_debug; 952 extern int nfs4_client_call_debug; 953 extern int nfs4_client_foo_debug; 954 extern int nfs4_client_zone_debug; 955 extern int nfs4_lost_rqst_debug; 956 extern int nfs4_open_stream_debug; 957 extern int nfs4_client_open_dg; 958 extern int nfs4_srvmnt_debug; 959 extern int nfs4_utf8_debug; 960 961 void rfs4_dbe_debug(rfs4_dbe_t *e); 962 963 #ifdef NFS4_DEBUG_MUTEX 964 void nfs4_debug_mutex_enter(kmutex_t *, char *, int); 965 void nfs4_debug_mutex_exit(kmutex_t *, char *, int); 966 967 #define mutex_enter(m) nfs4_debug_mutex_enter((m), __FILE__, __LINE__) 968 #define mutex_exit(m) nfs4_debug_mutex_exit((m), __FILE__, __LINE__) 969 #endif /* NFS4_DEBUG_MUTEX */ 970 971 #else /* ! DEBUG */ 972 #define NFS4_DEBUG(var, args) 973 #endif /* DEBUG */ 974 975 /* 976 * XXX - temporary for testing of volatile fh 977 */ 978 979 #ifdef VOLATILE_FH_TEST 980 981 struct nfs_fh4_fmt { 982 fhandle4_t fh4_i; 983 uint32_t fh4_flag; 984 uint32_t fh4_volatile_id; 985 }; 986 987 #else /* VOLATILE_FH_TEST */ 988 989 struct nfs_fh4_fmt { 990 fhandle4_t fh4_i; 991 uint32_t fh4_flag; 992 }; 993 994 #endif /* VOLATILE_FH_TEST */ 995 996 #define FH4_NAMEDATTR 1 997 #define FH4_ATTRDIR 2 998 999 #define fh4_fsid fh4_i.fhx_fsid 1000 #define fh4_len fh4_i.fhx_len /* fid length */ 1001 #define fh4_data fh4_i.fhx_data /* fid bytes */ 1002 #define fh4_xlen fh4_i.fhx_xlen 1003 #define fh4_xdata fh4_i.fhx_xdata 1004 typedef struct nfs_fh4_fmt nfs_fh4_fmt_t; 1005 1006 #define fh4_to_fmt4(fh4p) ((nfs_fh4_fmt_t *)(fh4p)->nfs_fh4_val) 1007 #define get_fh4_flag(fh4p, flag) ((fh4_to_fmt4(fh4p)->fh4_flag) & (flag)) 1008 #define set_fh4_flag(fh4p, flag) ((fh4_to_fmt4(fh4p)->fh4_flag) |= (flag)) 1009 #define clr_fh4_flag(fh4p, flag) ((fh4_to_fmt4(fh4p)->fh4_flag) &= ~(flag)) 1010 1011 #define NFS_FH4_LEN sizeof (nfs_fh4_fmt_t) 1012 1013 /* 1014 * Copy fields from external (fhandle_t) to in-memory (nfs_fh4_fmt_t) 1015 * format to support export info checking. It does not copy over 1016 * the complete filehandle, just the fsid, xlen and xdata. It may 1017 * need to be changed to be used in other places. 1018 * 1019 * NOTE: The macro expects the space to be pre-allocated for 1020 * the contents of nfs_fh4_fmt_t. 1021 */ 1022 #define FH_TO_FMT4(exifh, nfs_fmt) { \ 1023 bzero((nfs_fmt), NFS_FH4_LEN); \ 1024 (nfs_fmt)->fh4_fsid = (exifh)->fh_fsid; \ 1025 (nfs_fmt)->fh4_xlen = (exifh)->fh_xlen; \ 1026 bcopy((exifh)->fh_xdata, (nfs_fmt)->fh4_xdata, \ 1027 (exifh)->fh_xlen); \ 1028 } 1029 1030 /* 1031 * A few definitions of repeatedly used constructs for nfsv4 1032 */ 1033 #define UTF8STRING_FREE(str) \ 1034 kmem_free((str).utf8string_val, (str).utf8string_len); \ 1035 (str).utf8string_val = NULL; \ 1036 (str).utf8string_len = 0; 1037 1038 /* 1039 * NFS4_VOLATILE_FH yields non-zero if the filesystem uses non-persistent 1040 * filehandles. 1041 */ 1042 #define NFS4_VOLATILE_FH(mi) \ 1043 ((mi)->mi_fh_expire_type & \ 1044 (FH4_VOLATILE_ANY | FH4_VOL_MIGRATION | FH4_VOL_RENAME)) 1045 1046 /* 1047 * NFS_IS_DOTNAME checks if the name given represents a dot or dotdot entry 1048 */ 1049 #define NFS_IS_DOTNAME(name) \ 1050 (((name)[0] == '.') && \ 1051 (((name)[1] == '\0') || (((name)[1] == '.') && ((name)[2] == '\0')))) 1052 1053 /* 1054 * Define the number of bits in a bitmap word (uint32) 1055 */ 1056 #define NFS4_BITMAP4_BITSPERWORD (sizeof (uint32_t) * 8) 1057 1058 /* 1059 * Define the value for the access field of the compound_state structure 1060 * based on the result of nfsauth access checking. 1061 */ 1062 #define CS_ACCESS_OK 0x1 1063 #define CS_ACCESS_DENIED 0x2 1064 #define CS_ACCESS_LIMITED 0x4 1065 1066 /* 1067 * compound state in nfsv4 server 1068 */ 1069 struct compound_state { 1070 struct exportinfo *exi; 1071 struct exportinfo *saved_exi; /* export struct for saved_vp */ 1072 cred_t *basecr; /* UNIX cred: only RPC request */ 1073 caddr_t principal; 1074 int nfsflavor; 1075 cred_t *cr; /* UNIX cred: RPC request and */ 1076 /* target export */ 1077 bool_t cont; 1078 uint_t access; /* access perm on vp per request */ 1079 bool_t deleg; /* TRUE if current fh has */ 1080 /* write delegated */ 1081 vnode_t *vp; /* modified by PUTFH, and by ops that */ 1082 /* input to GETFH */ 1083 bool_t mandlock; /* Is mandatory locking in effect */ 1084 /* for vp */ 1085 vnode_t *saved_vp; /* modified by SAVEFH, copied to */ 1086 /* vp by RESTOREFH */ 1087 nfsstat4 *statusp; 1088 nfs_fh4 fh; /* ditto. valid only if vp != NULL */ 1089 nfs_fh4 saved_fh; /* ditto. valid only if */ 1090 /* saved_vp != NULL */ 1091 struct svc_req *req; 1092 char fhbuf[NFS4_FHSIZE]; 1093 }; 1094 1095 /* 1096 * Conversion commands for nfsv4 server attr checking 1097 */ 1098 enum nfs4_attr_cmd { 1099 NFS4ATTR_SUPPORTED = 0, /* check which attrs supported */ 1100 NFS4ATTR_GETIT = 1, /* getattr - sys to fattr4 (r) */ 1101 NFS4ATTR_SETIT = 2, /* setattr - fattr4 to sys (w) */ 1102 NFS4ATTR_VERIT = 3, /* verify - fattr4 to sys (r) */ 1103 NFS4ATTR_FREEIT = 4 /* free any alloc'd space for attr */ 1104 }; 1105 1106 typedef enum nfs4_attr_cmd nfs4_attr_cmd_t; 1107 1108 struct nfs4_svgetit_arg { 1109 nfs4_attr_cmd_t op; /* getit or setit */ 1110 struct compound_state *cs; 1111 struct statvfs64 *sbp; 1112 uint_t flag; /* VOP_GETATTR/VOP_SETATTR flag */ 1113 uint_t xattr; /* object is xattr */ 1114 bool_t rdattr_error_req; /* if readdir & client wants */ 1115 /* rdattr_error */ 1116 nfsstat4 rdattr_error; /* used for per-entry status */ 1117 /* (if rdattr_err) */ 1118 bool_t is_referral; /* because sometimes we tell lies */ 1119 bool_t mntdfid_set; 1120 fattr4_mounted_on_fileid 1121 mounted_on_fileid; 1122 /* readdir op can always return */ 1123 /* d_ino from server fs dirent */ 1124 /* for mounted_on_fileid attr. */ 1125 /* This field holds d_ino so */ 1126 /* srv attr conv code can avoid */ 1127 /* doing an untraverse. */ 1128 vattr_t vap[1]; 1129 }; 1130 1131 struct nfs4_ntov_map { 1132 bitmap4 fbit; /* FATTR4_XXX_MASKY */ 1133 uint_t vbit; /* AT_XXX */ 1134 bool_t vfsstat; 1135 bool_t mandatory; /* attribute mandatory to implement? */ 1136 uint_t nval; 1137 int xdr_size; /* Size of XDR'd attr */ 1138 xdrproc_t xfunc; 1139 int (*sv_getit)(nfs4_attr_cmd_t, struct nfs4_svgetit_arg *, 1140 union nfs4_attr_u *); /* subroutine for getting attr. */ 1141 char *prtstr; /* string attr for printing */ 1142 }; 1143 1144 struct nfs4attr_to_vattr { 1145 vnode_t *vp; 1146 vattr_t *vap; 1147 nfs_fh4 *fhp; 1148 nfsstat4 rdattr_error; 1149 uint32_t flag; 1150 fattr4_change change; 1151 fattr4_fsid srv_fsid; 1152 fattr4_mounted_on_fileid mntd_fid; 1153 }; 1154 1155 typedef struct nfs4attr_to_vattr ntov4_t; 1156 1157 /* 1158 * nfs4attr_to_vattr flags 1159 */ 1160 #define NTOV_FHP_VALID 0x01 1161 #define NTOV_RDATTR_ERROR_VALID 0x02 1162 #define NTOV_CHANGE_VALID 0x04 1163 #define NTOV_SUPP_VALID 0x08 1164 #define NTOV_SRV_FSID_VALID 0x10 1165 #define NTOV_MOUNTED_ON_FILEID_VALID 0x20 1166 1167 1168 #define FATTR4_MANDATTR_MASK ( \ 1169 FATTR4_SUPPORTED_ATTRS_MASK | \ 1170 FATTR4_TYPE_MASK | \ 1171 FATTR4_FH_EXPIRE_TYPE_MASK | \ 1172 FATTR4_CHANGE_MASK | \ 1173 FATTR4_SIZE_MASK | \ 1174 FATTR4_LINK_SUPPORT_MASK | \ 1175 FATTR4_SYMLINK_SUPPORT_MASK | \ 1176 FATTR4_NAMED_ATTR_MASK | \ 1177 FATTR4_FSID_MASK | \ 1178 FATTR4_UNIQUE_HANDLES_MASK | \ 1179 FATTR4_LEASE_TIME_MASK | \ 1180 FATTR4_RDATTR_ERROR_MASK | \ 1181 FATTR4_FILEHANDLE_MASK) 1182 1183 1184 struct nfs4attr_to_osattr { 1185 void *attrconv_arg; 1186 uint_t mask; 1187 }; 1188 1189 struct mntinfo4; 1190 1191 /* 1192 * lkp4_attr_setup lists the different options for attributes when calling 1193 * nfs4lookup_setup - either no attributes (just lookups - e.g., secinfo), 1194 * one component only (normal component lookup), get attributes for the 1195 * last component (e.g., mount), attributes for each component (e.g., 1196 * failovers later), just the filehandle for the last component (e.g., 1197 * volatile filehandle recovery), or stuff that needs OPENATTR (e.g. 1198 * looking up a named attribute or it's hidden directory). 1199 */ 1200 enum lkp4_attr_setup { 1201 LKP4_NO_ATTRIBUTES = 0, /* no attrs or filehandles */ 1202 LKP4_ALL_ATTRIBUTES = 3, /* multi-comp: attrs for all comps */ 1203 LKP4_LAST_NAMED_ATTR = 5, /* multi-comp: named attr & attrdir */ 1204 LKP4_LAST_ATTRDIR = 6, /* multi-comp: just attrdir */ 1205 LKP4_ALL_ATTR_SECINFO = 7 /* multi-comp: attrs for all comp and */ 1206 /* secinfo for last comp */ 1207 }; 1208 1209 /* 1210 * lookup4_param a set of parameters to nfs4lookup_setup - 1211 * used to setup a path lookup compound request. 1212 */ 1213 typedef struct lookup4_param { 1214 enum lkp4_attr_setup l4_getattrs; /* (in) get attrs in the lookup? */ 1215 int header_len; /* (in) num ops before first lookup */ 1216 int trailer_len; /* (in) num ops after last */ 1217 /* Lookup/Getattr */ 1218 bitmap4 ga_bits; /* (in) Which attributes for Getattr */ 1219 COMPOUND4args_clnt *argsp; /* (in/out) args for compound struct */ 1220 COMPOUND4res_clnt *resp; /* (in/out) res for compound struct */ 1221 int arglen; /* (out) argop buffer alloc'd length */ 1222 struct mntinfo4 *mi; 1223 } lookup4_param_t; 1224 1225 1226 #define NFS4_FATTR4_FINISH -1 /* fattr4 index indicating finish */ 1227 1228 typedef int (*nfs4attr_to_os_t)(int, union nfs4_attr_u *, 1229 struct nfs4attr_to_osattr *); 1230 1231 /* 1232 * The nfs4_error_t is the basic structure to return error values 1233 * from rfs4call. It encapsulates the unix errno 1234 * value, the nfsstat4 value and the rpc status value into a single 1235 * structure. 1236 * 1237 * If error is set, then stat is ignored and rpc_status may be 1238 * set if the error occurred as the result of a CLNT_CALL. If 1239 * stat is set, then rpc request succeeded, error and 1240 * rpc_status are set to 0 and stat contains the result of 1241 * operation, NFS4_OK or one of the NFS4ERR_* values. 1242 * 1243 * Functions which want to generate errors independently from 1244 * rfs4call should set error to the desired errno value and 1245 * set stat and rpc_status to 0. nfs4_error_init() is a 1246 * convenient function to do this. 1247 */ 1248 typedef struct { 1249 int error; 1250 nfsstat4 stat; 1251 enum clnt_stat rpc_status; 1252 } nfs4_error_t; 1253 1254 /* 1255 * Shared functions 1256 */ 1257 extern void rfs4_op_readdir(nfs_argop4 *, nfs_resop4 *, 1258 struct svc_req *, struct compound_state *); 1259 extern void nfs_fh4_copy(nfs_fh4 *, nfs_fh4 *); 1260 1261 extern void nfs4_fattr4_free(fattr4 *); 1262 1263 extern int nfs4lookup_setup(char *, lookup4_param_t *, int); 1264 extern void nfs4_getattr_otw_norecovery(vnode_t *, 1265 nfs4_ga_res_t *, nfs4_error_t *, cred_t *, int); 1266 extern int nfs4_getattr_otw(vnode_t *, nfs4_ga_res_t *, cred_t *, int); 1267 extern int nfs4cmpfh(const nfs_fh4 *, const nfs_fh4 *); 1268 extern int nfs4cmpfhandle(nfs4_fhandle_t *, nfs4_fhandle_t *); 1269 extern int nfs4getattr(vnode_t *, struct vattr *, cred_t *); 1270 extern int nfs4_waitfor_purge_complete(vnode_t *); 1271 extern int nfs4_validate_caches(vnode_t *, cred_t *); 1272 extern int nfs4init(int, char *); 1273 extern void nfs4fini(void); 1274 extern int nfs4_vfsinit(void); 1275 extern void nfs4_vfsfini(void); 1276 1277 extern void nfs4_vnops_init(void); 1278 extern void nfs4_vnops_fini(void); 1279 extern void nfs_idmap_init(void); 1280 extern void nfs_idmap_flush(int); 1281 extern void nfs_idmap_fini(void); 1282 extern int nfs4_rnode_init(void); 1283 extern int nfs4_rnode_fini(void); 1284 extern int nfs4_shadow_init(void); 1285 extern int nfs4_shadow_fini(void); 1286 extern int nfs4_acache_init(void); 1287 extern int nfs4_acache_fini(void); 1288 extern int nfs4_subr_init(void); 1289 extern int nfs4_subr_fini(void); 1290 extern void nfs4_acl_init(void); 1291 extern void nfs4_acl_free_cache(vsecattr_t *); 1292 1293 extern int geterrno4(nfsstat4); 1294 extern nfsstat4 puterrno4(int); 1295 extern int nfs4_need_to_bump_seqid(COMPOUND4res_clnt *); 1296 extern int nfs4tsize(void); 1297 extern int checkauth4(struct compound_state *, struct svc_req *); 1298 extern nfsstat4 call_checkauth4(struct compound_state *, struct svc_req *); 1299 extern int is_exported_sec(int, struct exportinfo *); 1300 extern void nfs4_vmask_to_nmask(uint_t, bitmap4 *); 1301 extern void nfs4_vmask_to_nmask_set(uint_t, bitmap4 *); 1302 extern int nfs_idmap_str_uid(utf8string *u8s, uid_t *, bool_t); 1303 extern int nfs_idmap_str_gid(utf8string *u8s, gid_t *, bool_t); 1304 extern int nfs_idmap_uid_str(uid_t, utf8string *u8s, bool_t); 1305 extern int nfs_idmap_gid_str(gid_t gid, utf8string *u8s, bool_t); 1306 extern int nfs4_time_ntov(nfstime4 *, timestruc_t *); 1307 extern int nfs4_time_vton(timestruc_t *, nfstime4 *); 1308 extern char *utf8_to_str(utf8string *, uint_t *, char *); 1309 extern char *utf8_to_fn(utf8string *, uint_t *, char *); 1310 extern utf8string *str_to_utf8(char *, utf8string *); 1311 extern utf8string *utf8_copy(utf8string *, utf8string *); 1312 extern int utf8_compare(const utf8string *, const utf8string *); 1313 extern nfsstat4 utf8_name_verify(utf8string *); 1314 extern nfsstat4 utf8_dir_verify(utf8string *); 1315 extern char *utf8_strchr(utf8string *, const char); 1316 extern int ln_ace4_cmp(nfsace4 *, nfsace4 *, int); 1317 extern int vs_aent_to_ace4(vsecattr_t *, vsecattr_t *, int, int); 1318 extern int vs_ace4_to_aent(vsecattr_t *, vsecattr_t *, uid_t, gid_t, 1319 int, int); 1320 extern int vs_ace4_to_acet(vsecattr_t *, vsecattr_t *, uid_t, gid_t, 1321 int); 1322 extern int vs_acet_to_ace4(vsecattr_t *, vsecattr_t *, int); 1323 extern void vs_acet_destroy(vsecattr_t *); 1324 extern void vs_ace4_destroy(vsecattr_t *); 1325 extern void vs_aent_destroy(vsecattr_t *); 1326 1327 extern int vn_find_nfs_record(vnode_t *, nvlist_t **, char **, char **); 1328 extern int vn_is_nfs_reparse(vnode_t *, cred_t *); 1329 extern fs_locations4 *fetch_referral(vnode_t *, cred_t *); 1330 extern char *build_symlink(vnode_t *, cred_t *, size_t *); 1331 1332 extern int stateid4_cmp(stateid4 *, stateid4 *); 1333 1334 extern vtype_t nf4_to_vt[]; 1335 1336 extern struct nfs4_ntov_map nfs4_ntov_map[]; 1337 extern uint_t nfs4_ntov_map_size; 1338 1339 extern kstat_named_t *rfsproccnt_v4_ptr; 1340 extern struct vfsops *nfs4_vfsops; 1341 extern struct vnodeops *nfs4_vnodeops; 1342 extern const struct fs_operation_def nfs4_vnodeops_template[]; 1343 extern vnodeops_t *nfs4_trigger_vnodeops; 1344 extern const struct fs_operation_def nfs4_trigger_vnodeops_template[]; 1345 1346 extern uint_t nfs4_tsize(struct knetconfig *); 1347 extern uint_t rfs4_tsize(struct svc_req *); 1348 1349 extern bool_t xdr_inline_decode_nfs_fh4(uint32_t *, nfs_fh4_fmt_t *, 1350 uint32_t); 1351 extern bool_t xdr_inline_encode_nfs_fh4(uint32_t **, uint32_t *, 1352 nfs_fh4_fmt_t *); 1353 1354 #ifdef DEBUG 1355 extern int rfs4_do_pre_op_attr; 1356 extern int rfs4_do_post_op_attr; 1357 #endif 1358 1359 extern stateid4 clnt_special0; 1360 extern stateid4 clnt_special1; 1361 #define CLNT_ISSPECIAL(id) (stateid4_cmp(id, &clnt_special0) || \ 1362 stateid4_cmp(id, &clnt_special1)) 1363 1364 /* 1365 * The NFS Version 4 service procedures. 1366 */ 1367 1368 extern void rfs4_compound(COMPOUND4args *, COMPOUND4res *, 1369 struct exportinfo *, struct svc_req *, cred_t *, int *); 1370 extern void rfs4_compound_free(COMPOUND4res *); 1371 extern void rfs4_compound_flagproc(COMPOUND4args *, int *); 1372 1373 extern int rfs4_srvrinit(void); 1374 extern void rfs4_srvrfini(void); 1375 extern void rfs4_state_init(void); 1376 extern void rfs4_state_fini(void); 1377 1378 #endif 1379 #ifdef __cplusplus 1380 } 1381 #endif 1382 1383 #endif /* _NFS4_H */ 1384