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 (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2015, 2016 Joyent, Inc. All rights reserved. 24 */ 25 26 #ifndef _SYS_SDEV_IMPL_H 27 #define _SYS_SDEV_IMPL_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 #include <rpc/rpc.h> 34 #include <sys/dirent.h> 35 #include <sys/vfs.h> 36 #include <sys/vfs_opreg.h> 37 #include <sys/list.h> 38 #include <sys/nvpair.h> 39 #include <sys/sunddi.h> 40 41 /* 42 * sdev_nodes are the file-system specific part of the 43 * vnodes for the device filesystem. 44 * 45 * The device filesystem exports two node types: 46 * 47 * VDIR nodes to represent directories 48 * VCHR & VBLK nodes to represent devices 49 */ 50 51 /* 52 * /dev mount arguments 53 */ 54 struct sdev_mountargs { 55 uint64_t sdev_attrdir; 56 }; 57 58 59 /* 60 * Nvpair names of profile information (list of device files available) of 61 * non-global /dev mounts. These strings must be unique among them. 62 */ 63 #define SDEV_NVNAME_MOUNTPT "prof_mountpt" 64 #define SDEV_NVNAME_INCLUDE "prof_include" 65 #define SDEV_NVNAME_EXCLUDE "prof_exclude" 66 #define SDEV_NVNAME_SYMLINK "prof_symlink" 67 #define SDEV_NVNAME_MAP "prof_map" 68 69 /* 70 * supported devfsadm_cmd 71 */ 72 #define DEVFSADMD_RUN_ALL 1 73 74 /* 75 * devfsadm_error codes 76 */ 77 #define DEVFSADM_RUN_INVALID 1 78 #define DEVFSADM_RUN_EPERM 2 79 #define DEVFSADM_RUN_NOTSUP 3 80 81 /* 82 * devfsadm/devname door data structures 83 */ 84 typedef struct sdev_door_arg { 85 uint8_t devfsadm_cmd; /* what to do for devfsadm[d] */ 86 } sdev_door_arg_t; 87 88 typedef struct sdev_door_res { 89 int32_t devfsadm_error; 90 } sdev_door_res_t; 91 92 #ifdef _KERNEL 93 94 struct sdev_dprof { 95 int has_glob; 96 nvlist_t *dev_name; 97 nvlist_t *dev_map; 98 nvlist_t *dev_symlink; 99 nvlist_t *dev_glob_incdir; 100 nvlist_t *dev_glob_excdir; 101 }; 102 103 /* 104 * devname_handle_t 105 */ 106 struct devname_handle { 107 struct sdev_node *dh_data; /* the sdev_node */ 108 void *dh_args; 109 }; 110 typedef struct devname_handle devname_handle_t; 111 112 /* 113 * Per-instance node data for the global zone instance 114 * Only one mount of /dev in the global zone 115 */ 116 typedef struct sdev_global_data { 117 struct devname_handle sdev_ghandle; 118 ulong_t sdev_dir_ggen; /* name space generation # */ 119 } sdev_global_data_t; 120 121 /* 122 * Per-instance node data - profile data per non-global zone mount instance 123 */ 124 typedef struct sdev_local_data { 125 ulong_t sdev_dir_lgen; /* cached generation # of /dev dir */ 126 ulong_t sdev_devtree_lgen; /* cached generation # of devtree */ 127 struct sdev_node *sdev_lorigin; /* corresponding global sdev_node */ 128 struct sdev_dprof sdev_lprof; /* profile for multi-inst */ 129 } sdev_local_data_t; 130 131 /* 132 * /dev filesystem sdev_node defines 133 */ 134 typedef struct sdev_node { 135 char *sdev_name; /* node name */ 136 size_t sdev_namelen; /* strlen(sdev_name) */ 137 char *sdev_path; /* absolute path */ 138 char *sdev_symlink; /* source for a symlink */ 139 struct vnode *sdev_vnode; /* vnode */ 140 141 krwlock_t sdev_contents; /* rw lock for this data structure */ 142 struct sdev_node *sdev_dotdot; /* parent */ 143 144 avl_tree_t sdev_entries; /* VDIR: contents as avl tree */ 145 avl_node_t sdev_avllink; /* avl node linkage */ 146 147 struct vnode *sdev_attrvp; /* backing store vnode if persisted */ 148 struct vattr *sdev_attr; /* memory copy of the vattr */ 149 150 ino64_t sdev_ino; /* inode */ 151 uint_t sdev_nlink; /* link count */ 152 int sdev_state; /* state of this node */ 153 int sdev_flags; /* flags bit */ 154 155 kmutex_t sdev_lookup_lock; /* node creation synch lock */ 156 kcondvar_t sdev_lookup_cv; /* node creation sync cv */ 157 int sdev_lookup_flags; /* node creation flags */ 158 159 /* per-instance data, either global or non-global zone */ 160 union { 161 struct sdev_global_data sdev_globaldata; 162 struct sdev_local_data sdev_localdata; 163 } sdev_instance_data; 164 165 void *sdev_private; 166 } sdev_node_t; 167 168 #define sdev_ldata sdev_instance_data.sdev_localdata 169 #define sdev_gdata sdev_instance_data.sdev_globaldata 170 171 #define sdev_handle sdev_gdata.sdev_ghandle 172 #define sdev_gdir_gen sdev_gdata.sdev_dir_ggen 173 174 #define sdev_ldir_gen sdev_ldata.sdev_dir_lgen 175 #define sdev_devtree_gen sdev_ldata.sdev_devtree_lgen 176 #define sdev_origin sdev_ldata.sdev_lorigin 177 #define sdev_prof sdev_ldata.sdev_lprof 178 179 /* 180 * Directory contents traversal 181 */ 182 #define SDEV_FIRST_ENTRY(ddv) avl_first(&(ddv)->sdev_entries) 183 #define SDEV_NEXT_ENTRY(ddv, dv) AVL_NEXT(&(ddv)->sdev_entries, (dv)) 184 185 /* 186 * See the big theory statement in sdev_vnops.c for an explanation of these 187 * states. 188 */ 189 typedef enum { 190 SDEV_ZOMBIE = -1, 191 SDEV_INIT = 0, 192 SDEV_READY 193 } sdev_node_state_t; 194 195 /* sdev_flags */ 196 #define SDEV_BUILD 0x0001 /* directory cache out-of-date */ 197 #define SDEV_GLOBAL 0x0002 /* global /dev nodes */ 198 #define SDEV_PERSIST 0x0004 /* backing store persisted node */ 199 #define SDEV_NO_NCACHE 0x0008 /* do not include in neg. cache */ 200 #define SDEV_DYNAMIC 0x0010 /* special-purpose vnode ops */ 201 /* (ex: pts) */ 202 #define SDEV_VTOR 0x0020 /* validate sdev_nodes during search */ 203 #define SDEV_ATTR_INVALID 0x0040 /* invalid node attributes, */ 204 /* need update */ 205 #define SDEV_SUBDIR 0x0080 /* match all subdirs under here */ 206 #define SDEV_ZONED 0x0100 /* zoned subdir */ 207 208 /* sdev_lookup_flags */ 209 #define SDEV_LOOKUP 0x0001 /* node creation in progress */ 210 #define SDEV_READDIR 0x0002 /* VDIR readdir in progress */ 211 #define SDEV_LGWAITING 0x0004 /* waiting for devfsadm completion */ 212 213 #define SDEV_VTOR_INVALID -1 214 #define SDEV_VTOR_SKIP 0 215 #define SDEV_VTOR_VALID 1 216 #define SDEV_VTOR_STALE 2 217 218 /* convenient macros */ 219 #define SDEV_IS_GLOBAL(dv) \ 220 (dv->sdev_flags & SDEV_GLOBAL) 221 #define SDEV_IS_PERSIST(dv) \ 222 (dv->sdev_flags & SDEV_PERSIST) 223 #define SDEV_IS_DYNAMIC(dv) \ 224 (dv->sdev_flags & SDEV_DYNAMIC) 225 #define SDEV_IS_NO_NCACHE(dv) \ 226 (dv->sdev_flags & SDEV_NO_NCACHE) 227 #define SDEV_IS_LOOKUP(dv) \ 228 (dv->sdev_lookup_flags & SDEV_LOOKUP) 229 #define SDEV_IS_READDIR(dv) \ 230 (dv->sdev_lookup_flags & SDEV_READDIR) 231 #define SDEV_IS_LGWAITING(dv) \ 232 (dv->sdev_lookup_flags & SDEV_LGWAITING) 233 234 #define SDEVTOV(n) ((struct vnode *)(n)->sdev_vnode) 235 #define VTOSDEV(vp) ((struct sdev_node *)(vp)->v_data) 236 #define VN_HELD(v) ((v)->v_count != 0) 237 #define SDEV_HELD(dv) (VN_HELD(SDEVTOV(dv))) 238 #define SDEV_HOLD(dv) VN_HOLD(SDEVTOV(dv)) 239 #define SDEV_RELE(dv) VN_RELE(SDEVTOV(dv)) 240 #define SDEV_SIMPLE_RELE(dv) { \ 241 mutex_enter(&SDEVTOV(dv)->v_lock); \ 242 SDEVTOV(dv)->v_count--; \ 243 mutex_exit(&SDEVTOV(dv)->v_lock); \ 244 } 245 246 #define SDEV_ACL_FLAVOR(vp) (VFSTOSDEVFS(vp->v_vfsp)->sdev_acl_flavor) 247 248 /* 249 * some defaults 250 */ 251 #define SDEV_ROOTINO ((ino_t)2) 252 #define SDEV_UID_DEFAULT (0) 253 #define SDEV_GID_DEFAULT (3) 254 #define SDEV_DIRMODE_DEFAULT (S_IFDIR |0755) 255 #define SDEV_DEVMODE_DEFAULT (0600) 256 #define SDEV_LNKMODE_DEFAULT (S_IFLNK | 0777) 257 258 extern struct vattr sdev_vattr_dir; 259 extern struct vattr sdev_vattr_lnk; 260 extern struct vattr sdev_vattr_blk; 261 extern struct vattr sdev_vattr_chr; 262 263 /* 264 * devname_lookup_func() 265 */ 266 extern int devname_lookup_func(struct sdev_node *, char *, struct vnode **, 267 struct cred *, int (*)(struct sdev_node *, char *, void **, struct cred *, 268 void *, char *), int); 269 270 /* 271 * flags used by devname_lookup_func callbacks 272 */ 273 #define SDEV_VATTR 0x4 /* callback returning node vattr */ 274 #define SDEV_VLINK 0x8 /* callback returning /dev link */ 275 276 /* 277 * devname_readdir_func() 278 */ 279 extern int devname_readdir_func(vnode_t *, uio_t *, cred_t *, int *, int); 280 281 /* 282 * flags for devname_readdir_func 283 */ 284 #define SDEV_BROWSE 0x1 /* fetch all entries from backing store */ 285 286 /* 287 * devname_setattr_func() 288 */ 289 extern int devname_setattr_func(struct vnode *, struct vattr *, int, 290 struct cred *, int (*)(struct sdev_node *, struct vattr *, int), int); 291 /* 292 * devname_inactive_func() 293 */ 294 extern void devname_inactive_func(struct vnode *, struct cred *, 295 void (*)(struct vnode *)); 296 297 /* 298 * /dev file system instance defines 299 */ 300 /* 301 * /dev version of vfs_data 302 */ 303 struct sdev_data { 304 struct sdev_data *sdev_prev; 305 struct sdev_data *sdev_next; 306 struct sdev_node *sdev_root; 307 struct vfs *sdev_vfsp; 308 struct sdev_mountargs *sdev_mountargs; 309 ulong_t sdev_acl_flavor; 310 }; 311 312 #define VFSTOSDEVFS(vfsp) ((struct sdev_data *)((vfsp)->vfs_data)) 313 314 /* 315 * sdev_fid overlays the fid structure (for VFS_VGET) 316 */ 317 struct sdev_fid { 318 uint16_t sdevfid_len; 319 ino32_t sdevfid_ino; 320 int32_t sdevfid_gen; 321 }; 322 323 /* 324 * devfsadm and devname communication defines 325 */ 326 typedef enum { 327 DEVNAME_DEVFSADM_STOPPED = 0, /* devfsadm has never run */ 328 DEVNAME_DEVFSADM_RUNNING, /* devfsadm is running */ 329 DEVNAME_DEVFSADM_RUN /* devfsadm ran once */ 330 } devname_devfsadm_state_t; 331 332 extern volatile uint_t devfsadm_state; /* atomic mask for devfsadm status */ 333 334 #define DEVNAME_DEVFSADM_SET_RUNNING(devfsadm_state) \ 335 (devfsadm_state = DEVNAME_DEVFSADM_RUNNING) 336 #define DEVNAME_DEVFSADM_SET_STOP(devfsadm_state) \ 337 (devfsadm_state = DEVNAME_DEVFSADM_STOPPED) 338 #define DEVNAME_DEVFSADM_SET_RUN(devfsadm_state) \ 339 (devfsadm_state = DEVNAME_DEVFSADM_RUN) 340 #define DEVNAME_DEVFSADM_IS_RUNNING(devfsadm_state) \ 341 (devfsadm_state == DEVNAME_DEVFSADM_RUNNING) 342 #define DEVNAME_DEVFSADM_HAS_RUN(devfsadm_state) \ 343 (devfsadm_state == DEVNAME_DEVFSADM_RUN) 344 345 #define SDEV_BLOCK_OTHERS(dv, cmd) { \ 346 ASSERT(MUTEX_HELD(&dv->sdev_lookup_lock)); \ 347 dv->sdev_lookup_flags |= cmd; \ 348 } 349 extern void sdev_unblock_others(struct sdev_node *, uint_t); 350 #define SDEV_UNBLOCK_OTHERS(dv, cmd) { \ 351 sdev_unblock_others(dv, cmd); \ 352 } 353 354 #define SDEV_CLEAR_LOOKUP_FLAGS(dv, cmd) { \ 355 dv->sdev_lookup_flags &= ~cmd; \ 356 } 357 358 extern int sdev_wait4lookup(struct sdev_node *, int); 359 extern int devname_filename_register(char *); 360 extern int devname_nsmaps_register(char *, size_t); 361 extern void sdev_devfsadm_lockinit(void); 362 extern void sdev_devfsadm_lockdestroy(void); 363 extern void devname_add_devfsadm_node(char *); 364 extern void sdev_devfsadmd_thread(struct sdev_node *, struct sdev_node *, 365 struct cred *); 366 extern int devname_profile_update(char *, size_t); 367 extern struct sdev_data *sdev_find_mntinfo(char *); 368 void sdev_mntinfo_rele(struct sdev_data *); 369 extern struct vnodeops *devpts_getvnodeops(void); 370 extern struct vnodeops *devvt_getvnodeops(void); 371 372 /* 373 * boot states - warning, the ordering here is significant 374 * 375 * the difference between "system available" and "boot complete" 376 * is a debounce timeout to catch some daemon issuing a readdir 377 * triggering a nuisance implict reconfig on each boot. 378 */ 379 #define SDEV_BOOT_STATE_INITIAL 0 380 #define SDEV_BOOT_STATE_RECONFIG 1 /* reconfig */ 381 #define SDEV_BOOT_STATE_SYSAVAIL 2 /* system available */ 382 #define SDEV_BOOT_STATE_COMPLETE 3 /* boot complete */ 383 384 /* 385 * Negative cache list and list element 386 * The mutex protects the flags against multiple accesses and 387 * must only be acquired when already holding the r/w lock. 388 */ 389 typedef struct sdev_nc_list { 390 list_t ncl_list; /* the list itself */ 391 kmutex_t ncl_mutex; /* protects ncl_flags */ 392 krwlock_t ncl_lock; /* protects ncl_list */ 393 int ncl_flags; 394 int ncl_nentries; 395 } sdev_nc_list_t; 396 397 typedef struct sdev_nc_node { 398 char *ncn_name; /* name of the node */ 399 int ncn_flags; /* state information */ 400 int ncn_expirecnt; /* remove once expired */ 401 list_node_t ncn_link; /* link to next in list */ 402 } sdev_nc_node_t; 403 404 /* ncl_flags */ 405 #define NCL_LIST_DIRTY 0x01 /* needs to be flushed */ 406 #define NCL_LIST_WRITING 0x02 /* write in progress */ 407 #define NCL_LIST_WENABLE 0x04 /* write-enabled post boot */ 408 409 /* ncn_flags */ 410 #define NCN_ACTIVE 0x01 /* a lookup has occurred */ 411 #define NCN_SRC_STORE 0x02 /* src: persistent store */ 412 #define NCN_SRC_CURRENT 0x04 /* src: current boot */ 413 414 /* sdev_lookup_failed flags */ 415 #define SLF_NO_NCACHE 0x01 /* node should not be added to ncache */ 416 #define SLF_REBUILT 0x02 /* reconfig performed during lookup attempt */ 417 418 /* 419 * The nvlist name and nvpair identifiers in the 420 * /etc/devices/devname_cache nvlist format 421 */ 422 #define DP_DEVNAME_ID "devname" 423 #define DP_DEVNAME_NCACHE_ID "ncache" 424 #define DP_DEVNAME_NC_EXPIRECNT_ID "expire-counts" 425 426 /* devname-cache list element */ 427 typedef struct nvp_devname { 428 char **nvp_paths; 429 int *nvp_expirecnts; 430 int nvp_npaths; 431 list_node_t nvp_link; 432 } nvp_devname_t; 433 434 /* 435 * name service globals and prototypes 436 */ 437 438 /* 439 * vnodeops and vfsops helpers 440 */ 441 442 typedef enum { 443 SDEV_CACHE_ADD = 0, 444 SDEV_CACHE_DELETE 445 } sdev_cache_ops_t; 446 447 extern struct sdev_node *sdev_cache_lookup(struct sdev_node *, char *); 448 extern void sdev_cache_update(struct sdev_node *, struct sdev_node **, char *, 449 sdev_cache_ops_t); 450 extern void sdev_node_cache_init(void); 451 extern void sdev_node_cache_fini(void); 452 extern struct sdev_node *sdev_mkroot(struct vfs *, dev_t, struct vnode *, 453 struct vnode *, struct cred *); 454 extern void sdev_filldir_dynamic(struct sdev_node *); 455 extern int sdev_mknode(struct sdev_node *, char *, struct sdev_node **, 456 struct vattr *, struct vnode *, void *, struct cred *, sdev_node_state_t); 457 extern int sdev_getlink(struct vnode *linkvp, char **link); 458 459 extern int sdev_nodeinit(struct sdev_node *, char *, struct sdev_node **, 460 vattr_t *); 461 extern int sdev_nodeready(struct sdev_node *, vattr_t *, vnode_t *, void *, 462 cred_t *); 463 extern int sdev_shadow_node(struct sdev_node *, struct cred *); 464 extern void sdev_nodedestroy(struct sdev_node *, uint_t); 465 extern void sdev_update_timestamps(struct vnode *, cred_t *, uint_t); 466 extern void sdev_vattr_merge(struct sdev_node *, struct vattr *); 467 extern void sdev_devstate_change(void); 468 extern int sdev_lookup_filter(sdev_node_t *, char *); 469 extern void sdev_lookup_failed(sdev_node_t *, char *, int); 470 extern int sdev_unlocked_access(void *, int, struct cred *); 471 472 #define SDEV_ENFORCE 0x1 473 extern void sdev_stale(struct sdev_node *); 474 extern int sdev_cleandir(struct sdev_node *, char *, uint_t); 475 extern int sdev_rnmnode(struct sdev_node *, struct sdev_node *, 476 struct sdev_node *, struct sdev_node **, char *, struct cred *); 477 extern size_t add_dir_entry(dirent64_t *, char *, size_t, ino_t, offset_t); 478 extern struct vattr *sdev_getdefault_attr(enum vtype type); 479 extern int sdev_to_vp(struct sdev_node *, struct vnode **); 480 extern ino_t sdev_mkino(struct sdev_node *); 481 extern int devname_backstore_lookup(struct sdev_node *, char *, 482 struct vnode **); 483 extern int sdev_is_devfs_node(char *); 484 extern int sdev_copyin_mountargs(struct mounta *, struct sdev_mountargs *); 485 extern int sdev_reserve_subdirs(struct sdev_node *); 486 extern int prof_lookup(); 487 extern void prof_filldir(struct sdev_node *); 488 extern int prof_name_matched(char *, struct sdev_node *); 489 extern int devpts_validate(struct sdev_node *dv); 490 extern int devnet_validate(struct sdev_node *dv); 491 extern int devipnet_validate(struct sdev_node *dv); 492 extern int devvt_validate(struct sdev_node *dv); 493 extern int devzvol_validate(struct sdev_node *dv); 494 extern void *sdev_get_vtor(struct sdev_node *dv); 495 496 /* 497 * devinfo helpers 498 */ 499 extern int sdev_modctl_readdir(const char *, char ***, int *, int *, int); 500 extern void sdev_modctl_readdir_free(char **, int, int); 501 extern int sdev_modctl_devexists(const char *); 502 503 /* 504 * ncache handlers 505 */ 506 507 extern void sdev_ncache_init(void); 508 extern void sdev_ncache_setup(void); 509 extern void sdev_ncache_teardown(void); 510 extern void sdev_nc_addname(sdev_nc_list_t *, sdev_node_t *, char *, int); 511 extern void sdev_nc_node_exists(sdev_node_t *); 512 extern void sdev_nc_path_exists(sdev_nc_list_t *, char *); 513 extern void sdev_modctl_dump_files(void); 514 515 /* 516 * globals 517 */ 518 extern kmutex_t sdev_lock; 519 extern int devtype; 520 extern kmem_cache_t *sdev_node_cache; 521 extern struct vnodeops *sdev_vnodeops; 522 extern struct vnodeops *devpts_vnodeops; 523 extern struct vnodeops *devnet_vnodeops; 524 extern struct vnodeops *devipnet_vnodeops; 525 extern struct vnodeops *devvt_vnodeops; 526 extern struct sdev_data *sdev_origins; /* mount info for global /dev instance */ 527 extern struct vnodeops *devzvol_vnodeops; 528 529 extern const fs_operation_def_t sdev_vnodeops_tbl[]; 530 extern const fs_operation_def_t devpts_vnodeops_tbl[]; 531 extern const fs_operation_def_t devnet_vnodeops_tbl[]; 532 extern const fs_operation_def_t devipnet_vnodeops_tbl[]; 533 extern const fs_operation_def_t devvt_vnodeops_tbl[]; 534 extern const fs_operation_def_t devsys_vnodeops_tbl[]; 535 extern const fs_operation_def_t devpseudo_vnodeops_tbl[]; 536 extern const fs_operation_def_t devzvol_vnodeops_tbl[]; 537 538 extern sdev_nc_list_t *sdev_ncache; 539 extern int sdev_reconfig_boot; 540 extern int sdev_boot_state; 541 extern int sdev_reconfig_verbose; 542 extern int sdev_reconfig_disable; 543 extern int sdev_nc_disable; 544 extern int sdev_nc_disable_reset; 545 extern int sdev_nc_verbose; 546 547 extern taskq_t *sdev_taskq; 548 549 /* 550 * misc. defines 551 */ 552 #ifdef DEBUG 553 extern int sdev_debug; 554 #define SDEV_DEBUG 0x01 /* error messages to console/log */ 555 #define SDEV_DEBUG_VOPS 0x02 /* vnode ops errors */ 556 #define SDEV_DEBUG_DLF 0x04 /* trace devname_lookup_func */ 557 #define SDEV_DEBUG_DRF 0x08 /* trace devname_readdir_func */ 558 #define SDEV_DEBUG_NCACHE 0x10 /* negative cache tracing */ 559 #define SDEV_DEBUG_DEVFSADMD 0x20 /* comm. of devnamefs & devfsadm */ 560 #define SDEV_DEBUG_PTS 0x40 /* /dev/pts tracing */ 561 #define SDEV_DEBUG_RECONFIG 0x80 /* events triggering reconfig */ 562 #define SDEV_DEBUG_SDEV_NODE 0x100 /* trace sdev_node activities */ 563 #define SDEV_DEBUG_PROFILE 0x200 /* trace sdev_profile */ 564 #define SDEV_DEBUG_MODCTL 0x400 /* trace modctl activity */ 565 #define SDEV_DEBUG_FLK 0x800 /* trace failed lookups */ 566 #define SDEV_DEBUG_NET 0x1000 /* /dev/net tracing */ 567 #define SDEV_DEBUG_ZVOL 0x2000 /* /dev/zvol/tracing */ 568 569 #define sdcmn_err(args) if (sdev_debug & SDEV_DEBUG) printf args 570 #define sdcmn_err2(args) if (sdev_debug & SDEV_DEBUG_VOPS) printf args 571 #define sdcmn_err3(args) if (sdev_debug & SDEV_DEBUG_DLF) printf args 572 #define sdcmn_err4(args) if (sdev_debug & SDEV_DEBUG_DRF) printf args 573 #define sdcmn_err5(args) if (sdev_debug & SDEV_DEBUG_NCACHE) printf args 574 #define sdcmn_err6(args) if (sdev_debug & SDEV_DEBUG_DEVFSADMD) printf args 575 #define sdcmn_err7(args) if (sdev_debug & SDEV_DEBUG_PTS) printf args 576 #define sdcmn_err8(args) if (sdev_debug & SDEV_DEBUG_RECONFIG) printf args 577 #define sdcmn_err9(args) if (sdev_debug & SDEV_DEBUG_SDEV_NODE) printf args 578 #define sdcmn_err10(args) if (sdev_debug & SDEV_DEBUG_PROFILE) printf args 579 #define sdcmn_err11(args) if (sdev_debug & SDEV_DEBUG_MODCTL) printf args 580 #define sdcmn_err12(args) if (sdev_debug & SDEV_DEBUG_NET) printf args 581 #define sdcmn_err13(args) if (sdev_debug & SDEV_DEBUG_ZVOL) printf args 582 #define impossible(args) printf args 583 #else 584 #define sdcmn_err(args) /* does nothing */ 585 #define sdcmn_err2(args) /* does nothing */ 586 #define sdcmn_err3(args) /* does nothing */ 587 #define sdcmn_err4(args) /* does nothing */ 588 #define sdcmn_err5(args) /* does nothing */ 589 #define sdcmn_err6(args) /* does nothing */ 590 #define sdcmn_err7(args) /* does nothing */ 591 #define sdcmn_err8(args) /* does nothing */ 592 #define sdcmn_err9(args) /* does nothing */ 593 #define sdcmn_err10(args) /* does nothing */ 594 #define sdcmn_err11(args) /* does nothing */ 595 #define sdcmn_err12(args) /* does nothing */ 596 #define sdcmn_err13(args) /* does nothing */ 597 #define impossible(args) /* does nothing */ 598 #endif 599 600 #ifdef DEBUG 601 #define SD_TRACE_FAILED_LOOKUP(ddv, nm, retried) \ 602 if ((sdev_debug & SDEV_DEBUG_FLK) || \ 603 ((retried) && (sdev_debug & SDEV_DEBUG_RECONFIG))) { \ 604 printf("lookup of %s/%s by %s failed, line %d\n", \ 605 (ddv)->sdev_name, (nm), curproc->p_user.u_comm, \ 606 __LINE__); \ 607 } 608 #else 609 #define SD_TRACE_FAILED_LOOKUP(ddv, nm, retried) 610 #endif 611 612 #endif /* _KERNEL */ 613 614 #ifdef __cplusplus 615 } 616 #endif 617 618 #endif /* _SYS_SDEV_IMPL_H */ 619