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 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_MODCTL_H 27 #define _SYS_MODCTL_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 /* 32 * loadable module support. 33 */ 34 35 #include <sys/types.h> 36 #include <sys/ioccom.h> 37 #include <sys/nexusdefs.h> 38 #include <sys/thread.h> 39 #include <sys/t_lock.h> 40 #include <sys/dditypes.h> 41 #include <sys/hwconf.h> 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /* 48 * The following structure defines the operations used by modctl 49 * to load and unload modules. Each supported loadable module type 50 * requires a set of mod_ops. 51 */ 52 struct mod_ops { 53 int (*modm_install)(); /* install module in kernel */ 54 int (*modm_remove)(); /* remove from kernel */ 55 int (*modm_info)(); /* module info */ 56 }; 57 58 #ifdef _KERNEL 59 60 /* 61 * The defined set of mod_ops structures for each loadable module type 62 * Defined in modctl.c 63 */ 64 extern struct mod_ops mod_brandops; 65 #if defined(__i386) || defined(__amd64) 66 extern struct mod_ops mod_cpuops; 67 #endif 68 extern struct mod_ops mod_cryptoops; 69 extern struct mod_ops mod_driverops; 70 extern struct mod_ops mod_execops; 71 extern struct mod_ops mod_fsops; 72 extern struct mod_ops mod_miscops; 73 extern struct mod_ops mod_schedops; 74 extern struct mod_ops mod_strmodops; 75 extern struct mod_ops mod_syscallops; 76 #ifdef _SYSCALL32_IMPL 77 extern struct mod_ops mod_syscallops32; 78 #endif 79 extern struct mod_ops mod_dacfops; 80 extern struct mod_ops mod_ippops; 81 extern struct mod_ops mod_pcbeops; 82 extern struct mod_ops mod_devfsops; 83 84 #endif /* _KERNEL */ 85 86 /* 87 * Definitions for the module specific linkage structures. 88 * The first two fields are the same in all of the structures. 89 * The linkinfo is for informational purposes only and is returned by 90 * modctl with the MODINFO cmd. 91 */ 92 93 /* For drivers */ 94 struct modldrv { 95 struct mod_ops *drv_modops; 96 char *drv_linkinfo; 97 struct dev_ops *drv_dev_ops; 98 }; 99 100 /* For system calls */ 101 struct modlsys { 102 struct mod_ops *sys_modops; 103 char *sys_linkinfo; 104 struct sysent *sys_sysent; 105 }; 106 107 /* For filesystems */ 108 struct modlfs { 109 struct mod_ops *fs_modops; 110 char *fs_linkinfo; 111 struct vfsdef_v3 *fs_vfsdef; /* version may actually vary */ 112 }; 113 114 #if defined(__i386) || defined(__amd64) 115 struct cmi_ops; 116 117 /* For CPU modules */ 118 struct modlcpu { 119 struct mod_ops *cpu_modops; 120 char *cpu_linkinfo; 121 struct cmi_ops *cpu_cmiops; 122 }; 123 #endif 124 125 /* For cryptographic providers */ 126 struct modlcrypto { 127 struct mod_ops *crypto_modops; 128 char *crypto_linkinfo; 129 }; 130 131 /* For misc */ 132 struct modlmisc { 133 struct mod_ops *misc_modops; 134 char *misc_linkinfo; 135 }; 136 137 /* For IP Modules */ 138 struct modlipp { 139 struct mod_ops *ipp_modops; 140 char *ipp_linkinfo; 141 struct ipp_ops *ipp_ops; 142 }; 143 144 /* For Streams Modules. */ 145 struct modlstrmod { 146 struct mod_ops *strmod_modops; 147 char *strmod_linkinfo; 148 struct fmodsw *strmod_fmodsw; 149 }; 150 151 /* For Scheduling classes */ 152 struct modlsched { 153 struct mod_ops *sched_modops; 154 char *sched_linkinfo; 155 struct sclass *sched_class; 156 }; 157 158 /* For Exec file type (like ELF, ...) */ 159 struct modlexec { 160 struct mod_ops *exec_modops; 161 char *exec_linkinfo; 162 struct execsw *exec_execsw; 163 }; 164 165 /* For dacf modules */ 166 struct modldacf { 167 struct mod_ops *dacf_modops; 168 char *dacf_linkinfo; 169 struct dacfsw *dacf_dacfsw; 170 }; 171 172 /* For PCBE modules */ 173 struct modlpcbe { 174 struct mod_ops *pcbe_modops; 175 char *pcbe_linkinfo; 176 struct __pcbe_ops *pcbe_ops; 177 }; 178 179 /* For Brand modules */ 180 struct modlbrand { 181 struct mod_ops *brand_modops; 182 char *brand_linkinfo; 183 struct brand *brand_branddef; 184 }; 185 186 /* for devname fs */ 187 struct modldev { 188 struct mod_ops *dev_modops; 189 char *dev_linkinfo; 190 struct devname_ops *dev_ops; 191 }; 192 193 /* 194 * Revision number of loadable modules support. This is the value 195 * that must be used in the modlinkage structure. 196 */ 197 #define MODREV_1 1 198 199 /* 200 * The modlinkage structure is the structure that the module writer 201 * provides to the routines to install, remove, and stat a module. 202 * The ml_linkage element is an array of pointers to linkage structures. 203 * For most modules there is only one linkage structure. We allocate 204 * enough space for 3 linkage structures which happens to be the most 205 * we have in any sun supplied module. For those modules with more 206 * than 3 linkage structures (which is very unlikely), a modlinkage 207 * structure must be kmem_alloc'd in the module wrapper to be big enough 208 * for all of the linkage structures. 209 */ 210 struct modlinkage { 211 int ml_rev; /* rev of loadable modules system */ 212 #ifdef _LP64 213 void *ml_linkage[7]; /* more space in 64-bit OS */ 214 #else 215 void *ml_linkage[4]; /* NULL terminated list of */ 216 /* linkage structures */ 217 #endif 218 }; 219 220 /* 221 * commands. These are the commands supported by the modctl system call. 222 */ 223 #define MODLOAD 0 224 #define MODUNLOAD 1 225 #define MODINFO 2 226 #define MODRESERVED 3 227 #define MODSETMINIROOT 4 228 #define MODADDMAJBIND 5 229 #define MODGETPATH 6 230 #define MODREADSYSBIND 7 231 #define MODGETMAJBIND 8 232 #define MODGETNAME 9 233 #define MODSIZEOF_DEVID 10 234 #define MODGETDEVID 11 235 #define MODSIZEOF_MINORNAME 12 236 #define MODGETMINORNAME 13 237 #define MODGETPATHLEN 14 238 #define MODEVENTS 15 239 #define MODGETFBNAME 16 240 #define MODREREADDACF 17 241 #define MODLOADDRVCONF 18 242 #define MODUNLOADDRVCONF 19 243 #define MODREMMAJBIND 20 244 #define MODDEVT2INSTANCE 21 245 #define MODGETDEVFSPATH_LEN 22 246 #define MODGETDEVFSPATH 23 247 #define MODDEVID2PATHS 24 248 #define MODSETDEVPOLICY 26 249 #define MODGETDEVPOLICY 27 250 #define MODALLOCPRIV 28 251 #define MODGETDEVPOLICYBYNAME 29 252 #define MODLOADMINORPERM 31 253 #define MODADDMINORPERM 32 254 #define MODREMMINORPERM 33 255 #define MODREMDRVCLEANUP 34 256 #define MODDEVEXISTS 35 257 #define MODDEVREADDIR 36 258 #define MODDEVNAME 37 259 #define MODGETDEVFSPATH_MI_LEN 38 260 #define MODGETDEVFSPATH_MI 39 261 #define MODRETIRE 40 262 #define MODUNRETIRE 41 263 #define MODISRETIRED 42 264 265 /* 266 * sub cmds for MODEVENTS 267 */ 268 #define MODEVENTS_FLUSH 0 269 #define MODEVENTS_FLUSH_DUMP 1 270 #define MODEVENTS_SET_DOOR_UPCALL_FILENAME 2 271 #define MODEVENTS_GETDATA 3 272 #define MODEVENTS_FREEDATA 4 273 #define MODEVENTS_POST_EVENT 5 274 #define MODEVENTS_REGISTER_EVENT 6 275 276 /* 277 * devname subcmds for MODDEVNAME 278 */ 279 #define MODDEVNAME_LOOKUPDOOR 0 280 #define MODDEVNAME_DEVFSADMNODE 1 281 #define MODDEVNAME_NSMAPS 2 282 #define MODDEVNAME_PROFILE 3 283 #define MODDEVNAME_RECONFIG 4 284 #define MODDEVNAME_SYSAVAIL 5 285 286 287 /* 288 * Data structure passed to modconfig command in kernel to build devfs tree 289 */ 290 291 struct aliases { 292 struct aliases *a_next; 293 char *a_name; 294 int a_len; 295 }; 296 297 #define MAXMODCONFNAME 256 298 299 struct modconfig { 300 char drvname[MAXMODCONFNAME]; 301 char drvclass[MAXMODCONFNAME]; 302 int major; 303 int num_aliases; 304 struct aliases *ap; 305 }; 306 307 #if defined(_SYSCALL32) 308 309 struct aliases32 { 310 caddr32_t a_next; 311 caddr32_t a_name; 312 int32_t a_len; 313 }; 314 315 struct modconfig32 { 316 char drvname[MAXMODCONFNAME]; 317 char drvclass[MAXMODCONFNAME]; 318 int32_t major; 319 int32_t num_aliases; 320 caddr32_t ap; 321 }; 322 323 #endif /* _SYSCALL32 */ 324 325 /* 326 * Max module path length 327 */ 328 #define MOD_MAXPATH 256 329 330 /* 331 * Default search path for modules ADDITIONAL to the directory 332 * where the kernel components we booted from are. 333 * 334 * Most often, this will be "/platform/{platform}/kernel /kernel /usr/kernel", 335 * but we don't wire it down here. 336 */ 337 #define MOD_DEFPATH "/kernel /usr/kernel" 338 339 /* 340 * Default file name extension for autoloading modules. 341 */ 342 #define MOD_DEFEXT "" 343 344 /* 345 * Parameters for modinfo 346 */ 347 #define MODMAXNAMELEN 32 /* max module name length */ 348 #define MODMAXLINKINFOLEN 32 /* max link info length */ 349 350 /* 351 * Module specific information. 352 */ 353 struct modspecific_info { 354 char msi_linkinfo[MODMAXLINKINFOLEN]; /* name in linkage struct */ 355 int msi_p0; /* module specific information */ 356 }; 357 358 /* 359 * Structure returned by modctl with MODINFO command. 360 */ 361 #define MODMAXLINK 10 /* max linkages modinfo can handle */ 362 363 struct modinfo { 364 int mi_info; /* Flags for info wanted */ 365 int mi_state; /* Flags for module state */ 366 int mi_id; /* id of this loaded module */ 367 int mi_nextid; /* id of next module or -1 */ 368 caddr_t mi_base; /* virtual addr of text */ 369 size_t mi_size; /* size of module in bytes */ 370 int mi_rev; /* loadable modules rev */ 371 int mi_loadcnt; /* # of times loaded */ 372 char mi_name[MODMAXNAMELEN]; /* name of module */ 373 struct modspecific_info mi_msinfo[MODMAXLINK]; 374 /* mod specific info */ 375 }; 376 377 378 #if defined(_SYSCALL32) 379 380 #define MODMAXNAMELEN32 32 /* max module name length */ 381 #define MODMAXLINKINFOLEN32 32 /* max link info length */ 382 #define MODMAXLINK32 10 /* max linkages modinfo can handle */ 383 384 struct modspecific_info32 { 385 char msi_linkinfo[MODMAXLINKINFOLEN32]; /* name in linkage struct */ 386 int32_t msi_p0; /* module specific information */ 387 }; 388 389 struct modinfo32 { 390 int32_t mi_info; /* Flags for info wanted */ 391 int32_t mi_state; /* Flags for module state */ 392 int32_t mi_id; /* id of this loaded module */ 393 int32_t mi_nextid; /* id of next module or -1 */ 394 caddr32_t mi_base; /* virtual addr of text */ 395 uint32_t mi_size; /* size of module in bytes */ 396 int32_t mi_rev; /* loadable modules rev */ 397 int32_t mi_loadcnt; /* # of times loaded */ 398 char mi_name[MODMAXNAMELEN32]; /* name of module */ 399 struct modspecific_info32 mi_msinfo[MODMAXLINK32]; 400 /* mod specific info */ 401 }; 402 403 #endif /* _SYSCALL32 */ 404 405 /* Values for mi_info flags */ 406 #define MI_INFO_ONE 1 407 #define MI_INFO_ALL 2 408 #define MI_INFO_CNT 4 409 #ifdef _KERNEL 410 #define MI_INFO_LINKAGE 8 /* used internally to extract modlinkage */ 411 #endif 412 /* 413 * MI_INFO_NOBASE indicates caller does not need mi_base. Failure to use this 414 * flag may lead 32-bit apps to receive an EOVERFLOW error from modctl(MODINFO) 415 * when used with a 64-bit kernel. 416 */ 417 #define MI_INFO_NOBASE 16 418 419 /* Values for mi_state */ 420 #define MI_LOADED 1 421 #define MI_INSTALLED 2 422 423 /* 424 * Macros to vector to the appropriate module specific routine. 425 */ 426 #define MODL_INSTALL(MODL, MODLP) \ 427 (*(MODL)->misc_modops->modm_install)(MODL, MODLP) 428 #define MODL_REMOVE(MODL, MODLP) \ 429 (*(MODL)->misc_modops->modm_remove)(MODL, MODLP) 430 #define MODL_INFO(MODL, MODLP, P0) \ 431 (*(MODL)->misc_modops->modm_info)(MODL, MODLP, P0) 432 433 /* 434 * Definitions for stubs 435 */ 436 struct mod_stub_info { 437 uintptr_t mods_func_adr; 438 struct mod_modinfo *mods_modinfo; 439 uintptr_t mods_stub_adr; 440 int (*mods_errfcn)(); 441 int mods_flag; /* flags defined below */ 442 }; 443 444 /* 445 * Definitions for mods_flag. 446 */ 447 #define MODS_WEAK 0x01 /* weak stub (not loaded if called) */ 448 #define MODS_NOUNLOAD 0x02 /* module not unloadable (no _fini()) */ 449 #define MODS_INSTALLED 0x10 /* module installed */ 450 451 struct mod_modinfo { 452 char *modm_module_name; 453 struct modctl *mp; 454 struct mod_stub_info modm_stubs[1]; 455 }; 456 457 struct modctl_list { 458 struct modctl_list *modl_next; 459 struct modctl *modl_modp; 460 }; 461 462 /* 463 * Structure to manage a loadable module. 464 * Note: the module (mod_mp) structure's "text" and "text_size" information 465 * are replicated in the modctl structure so that mod_containing_pc() 466 * doesn't have to grab any locks (modctls are persistent; modules are not.) 467 */ 468 typedef struct modctl { 469 struct modctl *mod_next; /* &modules based list */ 470 struct modctl *mod_prev; 471 int mod_id; 472 void *mod_mp; 473 kthread_t *mod_inprogress_thread; 474 struct mod_modinfo *mod_modinfo; 475 struct modlinkage *mod_linkage; 476 char *mod_filename; 477 char *mod_modname; 478 479 char mod_busy; /* inprogress_thread has locked */ 480 char mod_want; /* someone waiting for unlock */ 481 char mod_prim; /* primary module */ 482 483 int mod_ref; /* ref count - from dependent or stub */ 484 485 char mod_loaded; /* module in memory */ 486 char mod_installed; /* post _init pre _fini */ 487 char mod_loadflags; 488 char mod_delay_unload; /* deferred unload */ 489 490 struct modctl_list *mod_requisites; /* mods this one depends on. */ 491 void *__unused; /* NOTE: reuse (same size) is OK, */ 492 /* deletion causes mdb.vs.core issues */ 493 int mod_loadcnt; /* number of times mod was loaded */ 494 int mod_nenabled; /* # of enabled DTrace probes in mod */ 495 char *mod_text; 496 size_t mod_text_size; 497 498 int mod_gencount; /* # times loaded/unloaded */ 499 struct modctl *mod_requisite_loading; /* mod circular dependency */ 500 } modctl_t; 501 502 /* 503 * mod_loadflags 504 */ 505 506 #define MOD_NOAUTOUNLOAD 0x1 /* Auto mod-unloader skips this mod */ 507 #define MOD_NONOTIFY 0x2 /* No krtld notifications on (un)load */ 508 #define MOD_NOUNLOAD 0x4 /* Assume EBUSY for all _fini's */ 509 510 511 #ifdef _KERNEL 512 513 #define MOD_BIND_HASHSIZE 64 514 #define MOD_BIND_HASHMASK (MOD_BIND_HASHSIZE-1) 515 516 typedef int modid_t; 517 518 /* 519 * global function and data declarations 520 */ 521 extern kmutex_t mod_lock; 522 523 extern char *systemfile; 524 extern char **syscallnames; 525 extern int moddebug; 526 527 /* 528 * this is the head of a doubly linked list. Only the next and prev 529 * pointers are used 530 */ 531 extern modctl_t modules; 532 533 extern int modload_qualified(const char *, 534 const char *, const char *, const char *, uint_t[], int); 535 536 extern void mod_setup(void); 537 extern int modload(char *, char *); 538 extern int modloadonly(char *, char *); 539 extern int modunload(int); 540 extern int mod_hold_stub(struct mod_stub_info *); 541 extern void modunload_disable(void); 542 extern void modunload_enable(void); 543 extern void modunload_begin(void); 544 extern void modunload_end(void); 545 extern int mod_remove_by_name(char *); 546 extern int mod_sysvar(const char *, const char *, u_longlong_t *); 547 extern int mod_sysctl(int, void *); 548 struct sysparam; 549 extern int mod_hold_by_modctl(modctl_t *, int); 550 #define MOD_WAIT_ONCE 0x01 551 #define MOD_WAIT_FOREVER 0x02 552 #define MOD_LOCK_HELD 0x04 553 #define MOD_LOCK_NOT_HELD 0x08 554 extern int mod_sysctl_type(int, int (*)(struct sysparam *, void *), 555 void *); 556 extern void mod_read_system_file(int); 557 extern void mod_release_stub(struct mod_stub_info *); 558 extern void mod_askparams(void); 559 extern void mod_uninstall_daemon(void); 560 extern void modreap(void); 561 extern modctl_t *mod_hold_by_id(modid_t); 562 extern modctl_t *mod_hold_by_name(const char *); 563 extern void mod_release_mod(modctl_t *); 564 extern uintptr_t modlookup(const char *, const char *); 565 extern uintptr_t modlookup_by_modctl(modctl_t *, const char *); 566 extern char *modgetsymname(uintptr_t, unsigned long *); 567 extern void mod_release_requisites(modctl_t *); 568 extern modctl_t *mod_load_requisite(modctl_t *, char *); 569 extern modctl_t *mod_find_by_filename(char *, char *); 570 extern uintptr_t modgetsymvalue(char *, int); 571 572 extern void mod_rele_dev_by_major(major_t); 573 extern struct dev_ops *mod_hold_dev_by_major(major_t); 574 extern struct dev_ops *mod_hold_dev_by_devi(dev_info_t *); 575 extern void mod_rele_dev_by_devi(dev_info_t *); 576 577 extern int make_devname(char *, major_t); 578 extern int gmatch(const char *, const char *); 579 580 struct bind; 581 extern void make_aliases(struct bind **); 582 extern int read_binding_file(char *, struct bind **, 583 int (*line_parser)(char *, int, char *, struct bind **)); 584 extern void clear_binding_hash(struct bind **); 585 586 extern void read_class_file(void); 587 extern void setbootpath(char *); 588 extern void setbootfstype(char *); 589 590 extern int install_stubs_by_name(modctl_t *, char *); 591 extern void install_stubs(modctl_t *); 592 extern void uninstall_stubs(modctl_t *); 593 extern void reset_stubs(modctl_t *); 594 extern modctl_t *mod_getctl(struct modlinkage *); 595 extern major_t mod_name_to_major(char *); 596 extern modid_t mod_name_to_modid(char *); 597 extern char *mod_major_to_name(major_t); 598 extern void init_devnamesp(int); 599 extern void init_syscallnames(int); 600 601 extern char *mod_getsysname(int); 602 extern int mod_getsysnum(char *); 603 604 extern char *mod_containing_pc(caddr_t); 605 extern int mod_in_autounload(void); 606 extern char *mod_modname(struct modlinkage *); 607 608 extern int dev_minorperm(dev_info_t *, char *, mperm_t *); 609 extern void dev_devices_cleanup(void); 610 611 /* 612 * Declarations used for dynamic linking support routines. Interfaces 613 * are marked with the pragma "unknown_control_flow" to prevent tail call 614 * optimization, so that implementations can reliably use caller() to 615 * determine initiating module. 616 */ 617 #define KRTLD_MODE_FIRST 0x0001 618 typedef struct __ddi_modhandle *ddi_modhandle_t; 619 extern ddi_modhandle_t ddi_modopen(const char *, 620 int, int *); 621 extern void *ddi_modsym(ddi_modhandle_t, 622 const char *, int *); 623 extern int ddi_modclose(ddi_modhandle_t); 624 #pragma unknown_control_flow(ddi_modopen, ddi_modsym, ddi_modclose) 625 626 /* 627 * Only the following are part of the DDI/DKI 628 */ 629 extern int _init(void); 630 extern int _fini(void); 631 extern int _info(struct modinfo *); 632 extern int mod_install(struct modlinkage *); 633 extern int mod_remove(struct modlinkage *); 634 extern int mod_info(struct modlinkage *, struct modinfo *); 635 636 #else /* _KERNEL */ 637 638 extern int modctl(int, ...); 639 640 #endif /* _KERNEL */ 641 642 /* 643 * bit definitions for moddebug. 644 */ 645 #define MODDEBUG_LOADMSG 0x80000000 /* print "[un]loading..." msg */ 646 #define MODDEBUG_ERRMSG 0x40000000 /* print detailed error msgs */ 647 #define MODDEBUG_LOADMSG2 0x20000000 /* print 2nd level msgs */ 648 #define MODDEBUG_RETIRE 0x10000000 /* print retire msgs */ 649 #define MODDEBUG_FINI_EBUSY 0x00020000 /* pretend fini returns EBUSY */ 650 #define MODDEBUG_NOAUL_IPP 0x00010000 /* no Autounloading ipp mods */ 651 #define MODDEBUG_NOAUL_DACF 0x00008000 /* no Autounloading dacf mods */ 652 #define MODDEBUG_KEEPTEXT 0x00004000 /* keep text after unloading */ 653 #define MODDEBUG_NOAUL_DRV 0x00001000 /* no Autounloading Drivers */ 654 #define MODDEBUG_NOAUL_EXEC 0x00000800 /* no Autounloading Execs */ 655 #define MODDEBUG_NOAUL_FS 0x00000400 /* no Autounloading File sys */ 656 #define MODDEBUG_NOAUL_MISC 0x00000200 /* no Autounloading misc */ 657 #define MODDEBUG_NOAUL_SCHED 0x00000100 /* no Autounloading scheds */ 658 #define MODDEBUG_NOAUL_STR 0x00000080 /* no Autounloading streams */ 659 #define MODDEBUG_NOAUL_SYS 0x00000040 /* no Autounloading syscalls */ 660 #define MODDEBUG_NOCTF 0x00000020 /* do not load CTF debug data */ 661 #define MODDEBUG_NOAUTOUNLOAD 0x00000010 /* no autounloading at all */ 662 #define MODDEBUG_DDI_MOD 0x00000008 /* ddi_mod{open,sym,close} */ 663 #define MODDEBUG_MP_MATCH 0x00000004 /* dev_minorperm */ 664 #define MODDEBUG_MINORPERM 0x00000002 /* minor perm modctls */ 665 #define MODDEBUG_USERDEBUG 0x00000001 /* bpt after init_module() */ 666 667 #ifdef __cplusplus 668 } 669 #endif 670 671 #endif /* _SYS_MODCTL_H */ 672