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 * Copyright (c) 2014, 2017 by Delphix. All rights reserved. 25 */ 26 27 #ifndef _SYS_SDEV_IMPL_H 28 #define _SYS_SDEV_IMPL_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #include <rpc/rpc.h> 35 #include <sys/dirent.h> 36 #include <sys/vfs.h> 37 #include <sys/vfs_opreg.h> 38 #include <sys/list.h> 39 #include <sys/nvpair.h> 40 #include <sys/sunddi.h> 41 42 /* 43 * sdev_nodes are the file-system specific part of the 44 * vnodes for the device filesystem. 45 * 46 * The device filesystem exports two node types: 47 * 48 * VDIR nodes to represent directories 49 * VCHR & VBLK nodes to represent devices 50 */ 51 52 /* 53 * /dev mount arguments 54 */ 55 struct sdev_mountargs { 56 uint64_t sdev_attrdir; 57 }; 58 59 60 /* 61 * Nvpair names of profile information (list of device files available) of 62 * non-global /dev mounts. These strings must be unique among them. 63 */ 64 #define SDEV_NVNAME_MOUNTPT "prof_mountpt" 65 #define SDEV_NVNAME_INCLUDE "prof_include" 66 #define SDEV_NVNAME_EXCLUDE "prof_exclude" 67 #define SDEV_NVNAME_SYMLINK "prof_symlink" 68 #define SDEV_NVNAME_MAP "prof_map" 69 70 /* 71 * supported devfsadm_cmd 72 */ 73 #define DEVFSADMD_RUN_ALL 1 74 75 /* 76 * devfsadm_error codes 77 */ 78 #define DEVFSADM_RUN_INVALID 1 79 #define DEVFSADM_RUN_EPERM 2 80 #define DEVFSADM_RUN_NOTSUP 3 81 82 /* 83 * devfsadm/devname door data structures 84 */ 85 typedef struct sdev_door_arg { 86 uint8_t devfsadm_cmd; /* what to do for devfsadm[d] */ 87 } sdev_door_arg_t; 88 89 typedef struct sdev_door_res { 90 int32_t devfsadm_error; 91 } sdev_door_res_t; 92 93 #ifdef _KERNEL 94 95 struct sdev_dprof { 96 int has_glob; 97 nvlist_t *dev_name; 98 nvlist_t *dev_map; 99 nvlist_t *dev_symlink; 100 nvlist_t *dev_glob_incdir; 101 nvlist_t *dev_glob_excdir; 102 }; 103 104 /* 105 * devname_handle_t 106 */ 107 struct devname_handle { 108 struct sdev_node *dh_data; /* the sdev_node */ 109 void *dh_args; 110 }; 111 typedef struct devname_handle devname_handle_t; 112 113 /* 114 * Per-instance node data for the global zone instance 115 * Only one mount of /dev in the global zone 116 */ 117 typedef struct sdev_global_data { 118 struct devname_handle sdev_ghandle; 119 ulong_t sdev_dir_ggen; /* name space generation # */ 120 } sdev_global_data_t; 121 122 /* 123 * Per-instance node data - profile data per non-global zone mount instance 124 */ 125 typedef struct sdev_local_data { 126 ulong_t sdev_dir_lgen; /* cached generation # of /dev dir */ 127 ulong_t sdev_devtree_lgen; /* cached generation # of devtree */ 128 struct sdev_node *sdev_lorigin; /* corresponding global sdev_node */ 129 struct sdev_dprof sdev_lprof; /* profile for multi-inst */ 130 } sdev_local_data_t; 131 132 /* 133 * /dev filesystem sdev_node defines 134 */ 135 typedef struct sdev_node { 136 char *sdev_name; /* node name */ 137 size_t sdev_namelen; /* strlen(sdev_name) */ 138 char *sdev_path; /* absolute path */ 139 char *sdev_symlink; /* source for a symlink */ 140 struct vnode *sdev_vnode; /* vnode */ 141 142 krwlock_t sdev_contents; /* rw lock for this data structure */ 143 struct sdev_node *sdev_dotdot; /* parent */ 144 145 avl_tree_t sdev_entries; /* VDIR: contents as avl tree */ 146 avl_node_t sdev_avllink; /* avl node linkage */ 147 148 struct vnode *sdev_attrvp; /* backing store vnode if persisted */ 149 struct vattr *sdev_attr; /* memory copy of the vattr */ 150 151 ino64_t sdev_ino; /* inode */ 152 uint_t sdev_nlink; /* link count */ 153 int sdev_state; /* state of this node */ 154 int sdev_flags; /* flags bit */ 155 156 kmutex_t sdev_lookup_lock; /* node creation synch lock */ 157 kcondvar_t sdev_lookup_cv; /* node creation sync cv */ 158 int sdev_lookup_flags; /* node creation flags */ 159 160 /* per-instance data, either global or non-global zone */ 161 union { 162 struct sdev_global_data sdev_globaldata; 163 struct sdev_local_data sdev_localdata; 164 } sdev_instance_data; 165 166 void *sdev_private; 167 } sdev_node_t; 168 169 #define sdev_ldata sdev_instance_data.sdev_localdata 170 #define sdev_gdata sdev_instance_data.sdev_globaldata 171 172 #define sdev_handle sdev_gdata.sdev_ghandle 173 #define sdev_gdir_gen sdev_gdata.sdev_dir_ggen 174 175 #define sdev_ldir_gen sdev_ldata.sdev_dir_lgen 176 #define sdev_devtree_gen sdev_ldata.sdev_devtree_lgen 177 #define sdev_origin sdev_ldata.sdev_lorigin 178 #define sdev_prof sdev_ldata.sdev_lprof 179 180 /* 181 * Directory contents traversal 182 */ 183 #define SDEV_FIRST_ENTRY(ddv) avl_first(&(ddv)->sdev_entries) 184 #define SDEV_NEXT_ENTRY(ddv, dv) AVL_NEXT(&(ddv)->sdev_entries, (dv)) 185 186 /* 187 * See the big theory statement in sdev_vnops.c for an explanation of these 188 * states. 189 */ 190 typedef enum { 191 SDEV_ZOMBIE = -1, 192 SDEV_INIT = 0, 193 SDEV_READY 194 } sdev_node_state_t; 195 196 /* sdev_flags */ 197 #define SDEV_BUILD 0x0001 /* directory cache out-of-date */ 198 #define SDEV_GLOBAL 0x0002 /* global /dev nodes */ 199 #define SDEV_PERSIST 0x0004 /* backing store persisted node */ 200 #define SDEV_NO_NCACHE 0x0008 /* do not include in neg. cache */ 201 #define SDEV_DYNAMIC 0x0010 /* special-purpose vnode ops */ 202 /* (ex: pts) */ 203 #define SDEV_VTOR 0x0020 /* validate sdev_nodes during search */ 204 #define SDEV_ATTR_INVALID 0x0040 /* invalid node attributes, */ 205 /* need update */ 206 #define SDEV_SUBDIR 0x0080 /* match all subdirs under here */ 207 #define SDEV_ZONED 0x0100 /* zoned subdir */ 208 209 /* sdev_lookup_flags */ 210 #define SDEV_LOOKUP 0x0001 /* node creation in progress */ 211 #define SDEV_READDIR 0x0002 /* VDIR readdir in progress */ 212 #define SDEV_LGWAITING 0x0004 /* waiting for devfsadm completion */ 213 214 #define SDEV_VTOR_INVALID -1 215 #define SDEV_VTOR_SKIP 0 216 #define SDEV_VTOR_VALID 1 217 #define SDEV_VTOR_STALE 2 218 219 /* convenient macros */ 220 #define SDEV_IS_GLOBAL(dv) \ 221 (dv->sdev_flags & SDEV_GLOBAL) 222 #define SDEV_IS_PERSIST(dv) \ 223 (dv->sdev_flags & SDEV_PERSIST) 224 #define SDEV_IS_DYNAMIC(dv) \ 225 (dv->sdev_flags & SDEV_DYNAMIC) 226 #define SDEV_IS_NO_NCACHE(dv) \ 227 (dv->sdev_flags & SDEV_NO_NCACHE) 228 #define SDEV_IS_LOOKUP(dv) \ 229 (dv->sdev_lookup_flags & SDEV_LOOKUP) 230 #define SDEV_IS_READDIR(dv) \ 231 (dv->sdev_lookup_flags & SDEV_READDIR) 232 #define SDEV_IS_LGWAITING(dv) \ 233 (dv->sdev_lookup_flags & SDEV_LGWAITING) 234 235 #define SDEVTOV(n) ((struct vnode *)(n)->sdev_vnode) 236 #define VTOSDEV(vp) ((struct sdev_node *)(vp)->v_data) 237 #define VN_HELD(v) ((v)->v_count != 0) 238 #define SDEV_HELD(dv) (VN_HELD(SDEVTOV(dv))) 239 #define SDEV_HOLD(dv) VN_HOLD(SDEVTOV(dv)) 240 #define SDEV_RELE(dv) VN_RELE(SDEVTOV(dv)) 241 #define SDEV_SIMPLE_RELE(dv) { \ 242 struct vnode *vp = SDEVTOV(dv); \ 243 mutex_enter(&vp->v_lock); \ 244 VN_RELE_LOCKED(vp); \ 245 mutex_exit(&vp->v_lock); \ 246 } 247 248 #define SDEV_ACL_FLAVOR(vp) (VFSTOSDEVFS(vp->v_vfsp)->sdev_acl_flavor) 249 250 /* 251 * some defaults 252 */ 253 #define SDEV_ROOTINO ((ino_t)2) 254 #define SDEV_UID_DEFAULT (0) 255 #define SDEV_GID_DEFAULT (3) 256 #define SDEV_DIRMODE_DEFAULT (S_IFDIR |0755) 257 #define SDEV_DEVMODE_DEFAULT (0600) 258 #define SDEV_LNKMODE_DEFAULT (S_IFLNK | 0777) 259 260 extern struct vattr sdev_vattr_dir; 261 extern struct vattr sdev_vattr_lnk; 262 extern struct vattr sdev_vattr_blk; 263 extern struct vattr sdev_vattr_chr; 264 265 /* 266 * devname_lookup_func() 267 */ 268 extern int devname_lookup_func(struct sdev_node *, char *, struct vnode **, 269 struct cred *, int (*)(struct sdev_node *, char *, void **, struct cred *, 270 void *, char *), int); 271 272 /* 273 * flags used by devname_lookup_func callbacks 274 */ 275 #define SDEV_VATTR 0x4 /* callback returning node vattr */ 276 #define SDEV_VLINK 0x8 /* callback returning /dev link */ 277 278 /* 279 * devname_readdir_func() 280 */ 281 extern int devname_readdir_func(vnode_t *, uio_t *, cred_t *, int *, int); 282 283 /* 284 * flags for devname_readdir_func 285 */ 286 #define SDEV_BROWSE 0x1 /* fetch all entries from backing store */ 287 288 /* 289 * devname_setattr_func() 290 */ 291 extern int devname_setattr_func(struct vnode *, struct vattr *, int, 292 struct cred *, int (*)(struct sdev_node *, struct vattr *, int), int); 293 /* 294 * devname_inactive_func() 295 */ 296 extern void devname_inactive_func(struct vnode *, struct cred *, 297 void (*)(struct vnode *)); 298 299 /* 300 * /dev file system instance defines 301 */ 302 /* 303 * /dev version of vfs_data 304 */ 305 struct sdev_data { 306 struct sdev_data *sdev_prev; 307 struct sdev_data *sdev_next; 308 struct sdev_node *sdev_root; 309 struct vfs *sdev_vfsp; 310 struct sdev_mountargs *sdev_mountargs; 311 ulong_t sdev_acl_flavor; 312 }; 313 314 #define VFSTOSDEVFS(vfsp) ((struct sdev_data *)((vfsp)->vfs_data)) 315 316 /* 317 * sdev_fid overlays the fid structure (for VFS_VGET) 318 */ 319 struct sdev_fid { 320 uint16_t sdevfid_len; 321 ino32_t sdevfid_ino; 322 int32_t sdevfid_gen; 323 }; 324 325 /* 326 * devfsadm and devname communication defines 327 */ 328 typedef enum { 329 DEVNAME_DEVFSADM_STOPPED = 0, /* devfsadm has never run */ 330 DEVNAME_DEVFSADM_RUNNING, /* devfsadm is running */ 331 DEVNAME_DEVFSADM_RUN /* devfsadm ran once */ 332 } devname_devfsadm_state_t; 333 334 extern volatile uint_t devfsadm_state; /* atomic mask for devfsadm status */ 335 336 #define DEVNAME_DEVFSADM_SET_RUNNING(devfsadm_state) \ 337 (devfsadm_state = DEVNAME_DEVFSADM_RUNNING) 338 #define DEVNAME_DEVFSADM_SET_STOP(devfsadm_state) \ 339 (devfsadm_state = DEVNAME_DEVFSADM_STOPPED) 340 #define DEVNAME_DEVFSADM_SET_RUN(devfsadm_state) \ 341 (devfsadm_state = DEVNAME_DEVFSADM_RUN) 342 #define DEVNAME_DEVFSADM_IS_RUNNING(devfsadm_state) \ 343 (devfsadm_state == DEVNAME_DEVFSADM_RUNNING) 344 #define DEVNAME_DEVFSADM_HAS_RUN(devfsadm_state) \ 345 (devfsadm_state == DEVNAME_DEVFSADM_RUN) 346 347 #define SDEV_BLOCK_OTHERS(dv, cmd) { \ 348 ASSERT(MUTEX_HELD(&dv->sdev_lookup_lock)); \ 349 dv->sdev_lookup_flags |= cmd; \ 350 } 351 extern void sdev_unblock_others(struct sdev_node *, uint_t); 352 #define SDEV_UNBLOCK_OTHERS(dv, cmd) { \ 353 sdev_unblock_others(dv, cmd); \ 354 } 355 356 #define SDEV_CLEAR_LOOKUP_FLAGS(dv, cmd) { \ 357 dv->sdev_lookup_flags &= ~cmd; \ 358 } 359 360 extern int sdev_wait4lookup(struct sdev_node *, int); 361 extern int devname_filename_register(char *); 362 extern int devname_nsmaps_register(char *, size_t); 363 extern void sdev_devfsadm_lockinit(void); 364 extern void sdev_devfsadm_lockdestroy(void); 365 extern void devname_add_devfsadm_node(char *); 366 extern void sdev_devfsadmd_thread(struct sdev_node *, struct sdev_node *, 367 struct cred *); 368 extern int devname_profile_update(char *, size_t); 369 extern struct sdev_data *sdev_find_mntinfo(char *); 370 void sdev_mntinfo_rele(struct sdev_data *); 371 extern struct vnodeops *devpts_getvnodeops(void); 372 extern struct vnodeops *devvt_getvnodeops(void); 373 374 /* 375 * boot states - warning, the ordering here is significant 376 * 377 * the difference between "system available" and "boot complete" 378 * is a debounce timeout to catch some daemon issuing a readdir 379 * triggering a nuisance implict reconfig on each boot. 380 */ 381 #define SDEV_BOOT_STATE_INITIAL 0 382 #define SDEV_BOOT_STATE_RECONFIG 1 /* reconfig */ 383 #define SDEV_BOOT_STATE_SYSAVAIL 2 /* system available */ 384 #define SDEV_BOOT_STATE_COMPLETE 3 /* boot complete */ 385 386 /* 387 * Negative cache list and list element 388 * The mutex protects the flags against multiple accesses and 389 * must only be acquired when already holding the r/w lock. 390 */ 391 typedef struct sdev_nc_list { 392 list_t ncl_list; /* the list itself */ 393 kmutex_t ncl_mutex; /* protects ncl_flags */ 394 krwlock_t ncl_lock; /* protects ncl_list */ 395 int ncl_flags; 396 int ncl_nentries; 397 } sdev_nc_list_t; 398 399 typedef struct sdev_nc_node { 400 char *ncn_name; /* name of the node */ 401 int ncn_flags; /* state information */ 402 int ncn_expirecnt; /* remove once expired */ 403 list_node_t ncn_link; /* link to next in list */ 404 } sdev_nc_node_t; 405 406 /* ncl_flags */ 407 #define NCL_LIST_DIRTY 0x01 /* needs to be flushed */ 408 #define NCL_LIST_WRITING 0x02 /* write in progress */ 409 #define NCL_LIST_WENABLE 0x04 /* write-enabled post boot */ 410 411 /* ncn_flags */ 412 #define NCN_ACTIVE 0x01 /* a lookup has occurred */ 413 #define NCN_SRC_STORE 0x02 /* src: persistent store */ 414 #define NCN_SRC_CURRENT 0x04 /* src: current boot */ 415 416 /* sdev_lookup_failed flags */ 417 #define SLF_NO_NCACHE 0x01 /* node should not be added to ncache */ 418 #define SLF_REBUILT 0x02 /* reconfig performed during lookup attempt */ 419 420 /* 421 * The nvlist name and nvpair identifiers in the 422 * /etc/devices/devname_cache nvlist format 423 */ 424 #define DP_DEVNAME_ID "devname" 425 #define DP_DEVNAME_NCACHE_ID "ncache" 426 #define DP_DEVNAME_NC_EXPIRECNT_ID "expire-counts" 427 428 /* devname-cache list element */ 429 typedef struct nvp_devname { 430 char **nvp_paths; 431 int *nvp_expirecnts; 432 int nvp_npaths; 433 list_node_t nvp_link; 434 } nvp_devname_t; 435 436 /* 437 * name service globals and prototypes 438 */ 439 440 /* 441 * vnodeops and vfsops helpers 442 */ 443 444 typedef enum { 445 SDEV_CACHE_ADD = 0, 446 SDEV_CACHE_DELETE 447 } sdev_cache_ops_t; 448 449 extern struct sdev_node *sdev_cache_lookup(struct sdev_node *, char *); 450 extern void sdev_cache_update(struct sdev_node *, struct sdev_node **, char *, 451 sdev_cache_ops_t); 452 extern void sdev_node_cache_init(void); 453 extern void sdev_node_cache_fini(void); 454 extern struct sdev_node *sdev_mkroot(struct vfs *, dev_t, struct vnode *, 455 struct vnode *, struct cred *); 456 extern void sdev_filldir_dynamic(struct sdev_node *); 457 extern int sdev_mknode(struct sdev_node *, char *, struct sdev_node **, 458 struct vattr *, struct vnode *, void *, struct cred *, sdev_node_state_t); 459 extern int sdev_getlink(struct vnode *linkvp, char **link); 460 461 extern int sdev_nodeinit(struct sdev_node *, char *, struct sdev_node **, 462 vattr_t *); 463 extern int sdev_nodeready(struct sdev_node *, vattr_t *, vnode_t *, void *, 464 cred_t *); 465 extern int sdev_shadow_node(struct sdev_node *, struct cred *); 466 extern void sdev_nodedestroy(struct sdev_node *, uint_t); 467 extern void sdev_update_timestamps(struct vnode *, cred_t *, uint_t); 468 extern void sdev_vattr_merge(struct sdev_node *, struct vattr *); 469 extern void sdev_devstate_change(void); 470 extern int sdev_lookup_filter(sdev_node_t *, char *); 471 extern void sdev_lookup_failed(sdev_node_t *, char *, int); 472 extern int sdev_unlocked_access(void *, int, struct cred *); 473 474 #define SDEV_ENFORCE 0x1 475 extern void sdev_stale(struct sdev_node *); 476 extern int sdev_cleandir(struct sdev_node *, char *, uint_t); 477 extern int sdev_rnmnode(struct sdev_node *, struct sdev_node *, 478 struct sdev_node *, struct sdev_node **, char *, struct cred *); 479 extern size_t add_dir_entry(dirent64_t *, char *, size_t, ino_t, offset_t); 480 extern struct vattr *sdev_getdefault_attr(enum vtype type); 481 extern int sdev_to_vp(struct sdev_node *, struct vnode **); 482 extern ino_t sdev_mkino(struct sdev_node *); 483 extern int devname_backstore_lookup(struct sdev_node *, char *, 484 struct vnode **); 485 extern int sdev_is_devfs_node(char *); 486 extern int sdev_copyin_mountargs(struct mounta *, struct sdev_mountargs *); 487 extern int sdev_reserve_subdirs(struct sdev_node *); 488 extern int prof_lookup(); 489 extern void prof_filldir(struct sdev_node *); 490 extern int prof_name_matched(char *, struct sdev_node *); 491 extern int devpts_validate(struct sdev_node *dv); 492 extern int devnet_validate(struct sdev_node *dv); 493 extern int devipnet_validate(struct sdev_node *dv); 494 extern int devvt_validate(struct sdev_node *dv); 495 extern int devzvol_validate(struct sdev_node *dv); 496 extern void *sdev_get_vtor(struct sdev_node *dv); 497 498 /* 499 * devinfo helpers 500 */ 501 extern int sdev_modctl_readdir(const char *, char ***, int *, int *, int); 502 extern void sdev_modctl_readdir_free(char **, int, int); 503 extern int sdev_modctl_devexists(const char *); 504 505 /* 506 * ncache handlers 507 */ 508 509 extern void sdev_ncache_init(void); 510 extern void sdev_ncache_setup(void); 511 extern void sdev_ncache_teardown(void); 512 extern void sdev_nc_addname(sdev_nc_list_t *, sdev_node_t *, char *, int); 513 extern void sdev_nc_node_exists(sdev_node_t *); 514 extern void sdev_nc_path_exists(sdev_nc_list_t *, char *); 515 extern void sdev_modctl_dump_files(void); 516 517 /* 518 * globals 519 */ 520 extern kmutex_t sdev_lock; 521 extern int devtype; 522 extern kmem_cache_t *sdev_node_cache; 523 extern struct vnodeops *sdev_vnodeops; 524 extern struct vnodeops *devpts_vnodeops; 525 extern struct vnodeops *devnet_vnodeops; 526 extern struct vnodeops *devipnet_vnodeops; 527 extern struct vnodeops *devvt_vnodeops; 528 extern struct sdev_data *sdev_origins; /* mount info for global /dev instance */ 529 extern struct vnodeops *devzvol_vnodeops; 530 531 extern const fs_operation_def_t sdev_vnodeops_tbl[]; 532 extern const fs_operation_def_t devpts_vnodeops_tbl[]; 533 extern const fs_operation_def_t devnet_vnodeops_tbl[]; 534 extern const fs_operation_def_t devipnet_vnodeops_tbl[]; 535 extern const fs_operation_def_t devvt_vnodeops_tbl[]; 536 extern const fs_operation_def_t devsys_vnodeops_tbl[]; 537 extern const fs_operation_def_t devpseudo_vnodeops_tbl[]; 538 extern const fs_operation_def_t devzvol_vnodeops_tbl[]; 539 540 extern sdev_nc_list_t *sdev_ncache; 541 extern int sdev_reconfig_boot; 542 extern int sdev_boot_state; 543 extern int sdev_reconfig_verbose; 544 extern int sdev_reconfig_disable; 545 extern int sdev_nc_disable; 546 extern int sdev_nc_disable_reset; 547 extern int sdev_nc_verbose; 548 549 extern taskq_t *sdev_taskq; 550 551 /* 552 * misc. defines 553 */ 554 #ifdef DEBUG 555 extern int sdev_debug; 556 #define SDEV_DEBUG 0x01 /* error messages to console/log */ 557 #define SDEV_DEBUG_VOPS 0x02 /* vnode ops errors */ 558 #define SDEV_DEBUG_DLF 0x04 /* trace devname_lookup_func */ 559 #define SDEV_DEBUG_DRF 0x08 /* trace devname_readdir_func */ 560 #define SDEV_DEBUG_NCACHE 0x10 /* negative cache tracing */ 561 #define SDEV_DEBUG_DEVFSADMD 0x20 /* comm. of devnamefs & devfsadm */ 562 #define SDEV_DEBUG_PTS 0x40 /* /dev/pts tracing */ 563 #define SDEV_DEBUG_RECONFIG 0x80 /* events triggering reconfig */ 564 #define SDEV_DEBUG_SDEV_NODE 0x100 /* trace sdev_node activities */ 565 #define SDEV_DEBUG_PROFILE 0x200 /* trace sdev_profile */ 566 #define SDEV_DEBUG_MODCTL 0x400 /* trace modctl activity */ 567 #define SDEV_DEBUG_FLK 0x800 /* trace failed lookups */ 568 #define SDEV_DEBUG_NET 0x1000 /* /dev/net tracing */ 569 #define SDEV_DEBUG_ZVOL 0x2000 /* /dev/zvol/tracing */ 570 571 #define sdcmn_err(args) if (sdev_debug & SDEV_DEBUG) printf args 572 #define sdcmn_err2(args) if (sdev_debug & SDEV_DEBUG_VOPS) printf args 573 #define sdcmn_err3(args) if (sdev_debug & SDEV_DEBUG_DLF) printf args 574 #define sdcmn_err4(args) if (sdev_debug & SDEV_DEBUG_DRF) printf args 575 #define sdcmn_err5(args) if (sdev_debug & SDEV_DEBUG_NCACHE) printf args 576 #define sdcmn_err6(args) if (sdev_debug & SDEV_DEBUG_DEVFSADMD) printf args 577 #define sdcmn_err7(args) if (sdev_debug & SDEV_DEBUG_PTS) printf args 578 #define sdcmn_err8(args) if (sdev_debug & SDEV_DEBUG_RECONFIG) printf args 579 #define sdcmn_err9(args) if (sdev_debug & SDEV_DEBUG_SDEV_NODE) printf args 580 #define sdcmn_err10(args) if (sdev_debug & SDEV_DEBUG_PROFILE) printf args 581 #define sdcmn_err11(args) if (sdev_debug & SDEV_DEBUG_MODCTL) printf args 582 #define sdcmn_err12(args) if (sdev_debug & SDEV_DEBUG_NET) printf args 583 #define sdcmn_err13(args) if (sdev_debug & SDEV_DEBUG_ZVOL) printf args 584 #define impossible(args) printf args 585 #else 586 #define sdcmn_err(args) ((void)0) 587 #define sdcmn_err2(args) ((void)0) 588 #define sdcmn_err3(args) ((void)0) 589 #define sdcmn_err4(args) ((void)0) 590 #define sdcmn_err5(args) ((void)0) 591 #define sdcmn_err6(args) ((void)0) 592 #define sdcmn_err7(args) ((void)0) 593 #define sdcmn_err8(args) ((void)0) 594 #define sdcmn_err9(args) ((void)0) 595 #define sdcmn_err10(args) ((void)0) 596 #define sdcmn_err11(args) ((void)0) 597 #define sdcmn_err12(args) ((void)0) 598 #define sdcmn_err13(args) ((void)0) 599 #define impossible(args) ((void)0) 600 #endif 601 602 #ifdef DEBUG 603 #define SD_TRACE_FAILED_LOOKUP(ddv, nm, retried) \ 604 if ((sdev_debug & SDEV_DEBUG_FLK) || \ 605 ((retried) && (sdev_debug & SDEV_DEBUG_RECONFIG))) { \ 606 printf("lookup of %s/%s by %s failed, line %d\n", \ 607 (ddv)->sdev_name, (nm), curproc->p_user.u_comm, \ 608 __LINE__); \ 609 } 610 #else 611 #define SD_TRACE_FAILED_LOOKUP(ddv, nm, retried) ((void)0) 612 #endif 613 614 #endif /* _KERNEL */ 615 616 #ifdef __cplusplus 617 } 618 #endif 619 620 #endif /* _SYS_SDEV_IMPL_H */ 621