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 2006 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 39 261 262 /* 263 * sub cmds for MODEVENTS 264 */ 265 #define MODEVENTS_FLUSH 0 266 #define MODEVENTS_FLUSH_DUMP 1 267 #define MODEVENTS_SET_DOOR_UPCALL_FILENAME 2 268 #define MODEVENTS_GETDATA 3 269 #define MODEVENTS_FREEDATA 4 270 #define MODEVENTS_POST_EVENT 5 271 #define MODEVENTS_REGISTER_EVENT 6 272 273 /* 274 * devname subcmds for MODDEVNAME 275 */ 276 #define MODDEVNAME_LOOKUPDOOR 0 277 #define MODDEVNAME_DEVFSADMNODE 1 278 #define MODDEVNAME_NSMAPS 2 279 #define MODDEVNAME_PROFILE 3 280 #define MODDEVNAME_RECONFIG 4 281 #define MODDEVNAME_SYSAVAIL 5 282 283 284 /* 285 * Data structure passed to modconfig command in kernel to build devfs tree 286 */ 287 288 struct aliases { 289 struct aliases *a_next; 290 char *a_name; 291 int a_len; 292 }; 293 294 #define MAXMODCONFNAME 256 295 296 struct modconfig { 297 char drvname[MAXMODCONFNAME]; 298 char drvclass[MAXMODCONFNAME]; 299 int major; 300 int num_aliases; 301 struct aliases *ap; 302 }; 303 304 #if defined(_SYSCALL32) 305 306 struct aliases32 { 307 caddr32_t a_next; 308 caddr32_t a_name; 309 int32_t a_len; 310 }; 311 312 struct modconfig32 { 313 char drvname[MAXMODCONFNAME]; 314 char drvclass[MAXMODCONFNAME]; 315 int32_t major; 316 int32_t num_aliases; 317 caddr32_t ap; 318 }; 319 320 #endif /* _SYSCALL32 */ 321 322 /* 323 * Max module path length 324 */ 325 #define MOD_MAXPATH 256 326 327 /* 328 * Default search path for modules ADDITIONAL to the directory 329 * where the kernel components we booted from are. 330 * 331 * Most often, this will be "/platform/{platform}/kernel /kernel /usr/kernel", 332 * but we don't wire it down here. 333 */ 334 #define MOD_DEFPATH "/kernel /usr/kernel" 335 336 /* 337 * Default file name extension for autoloading modules. 338 */ 339 #define MOD_DEFEXT "" 340 341 /* 342 * Parameters for modinfo 343 */ 344 #define MODMAXNAMELEN 32 /* max module name length */ 345 #define MODMAXLINKINFOLEN 32 /* max link info length */ 346 347 /* 348 * Module specific information. 349 */ 350 struct modspecific_info { 351 char msi_linkinfo[MODMAXLINKINFOLEN]; /* name in linkage struct */ 352 int msi_p0; /* module specific information */ 353 }; 354 355 /* 356 * Structure returned by modctl with MODINFO command. 357 */ 358 #define MODMAXLINK 10 /* max linkages modinfo can handle */ 359 360 struct modinfo { 361 int mi_info; /* Flags for info wanted */ 362 int mi_state; /* Flags for module state */ 363 int mi_id; /* id of this loaded module */ 364 int mi_nextid; /* id of next module or -1 */ 365 caddr_t mi_base; /* virtual addr of text */ 366 size_t mi_size; /* size of module in bytes */ 367 int mi_rev; /* loadable modules rev */ 368 int mi_loadcnt; /* # of times loaded */ 369 char mi_name[MODMAXNAMELEN]; /* name of module */ 370 struct modspecific_info mi_msinfo[MODMAXLINK]; 371 /* mod specific info */ 372 }; 373 374 375 #if defined(_SYSCALL32) 376 377 #define MODMAXNAMELEN32 32 /* max module name length */ 378 #define MODMAXLINKINFOLEN32 32 /* max link info length */ 379 #define MODMAXLINK32 10 /* max linkages modinfo can handle */ 380 381 struct modspecific_info32 { 382 char msi_linkinfo[MODMAXLINKINFOLEN32]; /* name in linkage struct */ 383 int32_t msi_p0; /* module specific information */ 384 }; 385 386 struct modinfo32 { 387 int32_t mi_info; /* Flags for info wanted */ 388 int32_t mi_state; /* Flags for module state */ 389 int32_t mi_id; /* id of this loaded module */ 390 int32_t mi_nextid; /* id of next module or -1 */ 391 caddr32_t mi_base; /* virtual addr of text */ 392 uint32_t mi_size; /* size of module in bytes */ 393 int32_t mi_rev; /* loadable modules rev */ 394 int32_t mi_loadcnt; /* # of times loaded */ 395 char mi_name[MODMAXNAMELEN32]; /* name of module */ 396 struct modspecific_info32 mi_msinfo[MODMAXLINK32]; 397 /* mod specific info */ 398 }; 399 400 #endif /* _SYSCALL32 */ 401 402 /* Values for mi_info flags */ 403 #define MI_INFO_ONE 1 404 #define MI_INFO_ALL 2 405 #define MI_INFO_CNT 4 406 #ifdef _KERNEL 407 #define MI_INFO_LINKAGE 8 /* used internally to extract modlinkage */ 408 #endif 409 /* 410 * MI_INFO_NOBASE indicates caller does not need mi_base. Failure to use this 411 * flag may lead 32-bit apps to receive an EOVERFLOW error from modctl(MODINFO) 412 * when used with a 64-bit kernel. 413 */ 414 #define MI_INFO_NOBASE 16 415 416 /* Values for mi_state */ 417 #define MI_LOADED 1 418 #define MI_INSTALLED 2 419 420 /* 421 * Macros to vector to the appropriate module specific routine. 422 */ 423 #define MODL_INSTALL(MODL, MODLP) \ 424 (*(MODL)->misc_modops->modm_install)(MODL, MODLP) 425 #define MODL_REMOVE(MODL, MODLP) \ 426 (*(MODL)->misc_modops->modm_remove)(MODL, MODLP) 427 #define MODL_INFO(MODL, MODLP, P0) \ 428 (*(MODL)->misc_modops->modm_info)(MODL, MODLP, P0) 429 430 /* 431 * Definitions for stubs 432 */ 433 struct mod_stub_info { 434 uintptr_t mods_func_adr; 435 struct mod_modinfo *mods_modinfo; 436 uintptr_t mods_stub_adr; 437 int (*mods_errfcn)(); 438 int mods_flag; /* flags defined below */ 439 }; 440 441 /* 442 * Definitions for mods_flag. 443 */ 444 #define MODS_WEAK 0x01 /* weak stub (not loaded if called) */ 445 #define MODS_NOUNLOAD 0x02 /* module not unloadable (no _fini()) */ 446 #define MODS_INSTALLED 0x10 /* module installed */ 447 448 struct mod_modinfo { 449 char *modm_module_name; 450 struct modctl *mp; 451 struct mod_stub_info modm_stubs[1]; 452 }; 453 454 struct modctl_list { 455 struct modctl_list *modl_next; 456 struct modctl *modl_modp; 457 }; 458 459 /* 460 * Structure to manage a loadable module. 461 * Note: the module (mod_mp) structure's "text" and "text_size" information 462 * are replicated in the modctl structure so that mod_containing_pc() 463 * doesn't have to grab any locks (modctls are persistent; modules are not.) 464 */ 465 typedef struct modctl { 466 struct modctl *mod_next; /* &modules based list */ 467 struct modctl *mod_prev; 468 int mod_id; 469 void *mod_mp; 470 kthread_t *mod_inprogress_thread; 471 struct mod_modinfo *mod_modinfo; 472 struct modlinkage *mod_linkage; 473 char *mod_filename; 474 char *mod_modname; 475 476 char mod_busy; /* inprogress_thread has locked */ 477 char mod_want; /* someone waiting for unlock */ 478 char mod_prim; /* primary module */ 479 480 int mod_ref; /* ref count - from dependent or stub */ 481 482 char mod_loaded; /* module in memory */ 483 char mod_installed; /* post _init pre _fini */ 484 char mod_loadflags; 485 char mod_delay_unload; /* deferred unload */ 486 487 struct modctl_list *mod_requisites; /* mods this one depends on. */ 488 void *__unused; /* NOTE: reuse (same size) is OK, */ 489 /* deletion causes mdb.vs.core issues */ 490 int mod_loadcnt; /* number of times mod was loaded */ 491 int mod_nenabled; /* # of enabled DTrace probes in mod */ 492 char *mod_text; 493 size_t mod_text_size; 494 495 int mod_gencount; /* # times loaded/unloaded */ 496 struct modctl *mod_requisite_loading; /* mod circular dependency */ 497 } modctl_t; 498 499 /* 500 * mod_loadflags 501 */ 502 503 #define MOD_NOAUTOUNLOAD 0x1 /* Auto mod-unloader skips this mod */ 504 #define MOD_NONOTIFY 0x2 /* No krtld notifications on (un)load */ 505 #define MOD_NOUNLOAD 0x4 /* Assume EBUSY for all _fini's */ 506 507 508 #ifdef _KERNEL 509 510 #define MOD_BIND_HASHSIZE 64 511 #define MOD_BIND_HASHMASK (MOD_BIND_HASHSIZE-1) 512 513 typedef int modid_t; 514 515 /* 516 * global function and data declarations 517 */ 518 extern kmutex_t mod_lock; 519 520 extern char *systemfile; 521 extern char **syscallnames; 522 extern int moddebug; 523 524 /* 525 * this is the head of a doubly linked list. Only the next and prev 526 * pointers are used 527 */ 528 extern modctl_t modules; 529 530 extern int modload_qualified(const char *, 531 const char *, const char *, const char *, uint_t[], int); 532 533 extern void mod_setup(void); 534 extern int modload(char *, char *); 535 extern int modloadonly(char *, char *); 536 extern int modunload(int); 537 extern int mod_hold_stub(struct mod_stub_info *); 538 extern void modunload_disable(void); 539 extern void modunload_enable(void); 540 extern void modunload_begin(void); 541 extern void modunload_end(void); 542 extern int mod_remove_by_name(char *); 543 extern int mod_sysvar(const char *, const char *, u_longlong_t *); 544 extern int mod_sysctl(int, void *); 545 struct sysparam; 546 extern int mod_hold_by_modctl(modctl_t *, int); 547 #define MOD_WAIT_ONCE 0x01 548 #define MOD_WAIT_FOREVER 0x02 549 #define MOD_LOCK_HELD 0x04 550 #define MOD_LOCK_NOT_HELD 0x08 551 extern int mod_sysctl_type(int, int (*)(struct sysparam *, void *), 552 void *); 553 extern void mod_read_system_file(int); 554 extern void mod_release_stub(struct mod_stub_info *); 555 extern void mod_askparams(void); 556 extern void mod_uninstall_daemon(void); 557 extern void modreap(void); 558 extern modctl_t *mod_hold_by_id(modid_t); 559 extern modctl_t *mod_hold_by_name(const char *); 560 extern void mod_release_mod(modctl_t *); 561 extern uintptr_t modlookup(const char *, const char *); 562 extern uintptr_t modlookup_by_modctl(modctl_t *, const char *); 563 extern char *modgetsymname(uintptr_t, unsigned long *); 564 extern void mod_release_requisites(modctl_t *); 565 extern modctl_t *mod_load_requisite(modctl_t *, char *); 566 extern modctl_t *mod_find_by_filename(char *, char *); 567 extern uintptr_t modgetsymvalue(char *, int); 568 569 extern void mod_rele_dev_by_major(major_t); 570 extern struct dev_ops *mod_hold_dev_by_major(major_t); 571 extern struct dev_ops *mod_hold_dev_by_devi(dev_info_t *); 572 extern void mod_rele_dev_by_devi(dev_info_t *); 573 574 extern int make_devname(char *, major_t); 575 extern int gmatch(const char *, const char *); 576 577 struct bind; 578 extern void make_aliases(struct bind **); 579 extern int read_binding_file(char *, struct bind **, 580 int (*line_parser)(char *, int, char *, struct bind **)); 581 extern void clear_binding_hash(struct bind **); 582 583 extern void read_class_file(void); 584 extern void setbootpath(char *); 585 extern void setbootfstype(char *); 586 587 extern int install_stubs_by_name(modctl_t *, char *); 588 extern void install_stubs(modctl_t *); 589 extern void uninstall_stubs(modctl_t *); 590 extern void reset_stubs(modctl_t *); 591 extern modctl_t *mod_getctl(struct modlinkage *); 592 extern major_t mod_name_to_major(char *); 593 extern modid_t mod_name_to_modid(char *); 594 extern char *mod_major_to_name(major_t); 595 extern void init_devnamesp(int); 596 extern void init_syscallnames(int); 597 598 extern char *mod_getsysname(int); 599 extern int mod_getsysnum(char *); 600 601 extern char *mod_containing_pc(caddr_t); 602 extern int mod_in_autounload(void); 603 extern char *mod_modname(struct modlinkage *); 604 605 extern int dev_minorperm(dev_info_t *, char *, mperm_t *); 606 607 /* 608 * Declarations used for dynamic linking support routines. Interfaces 609 * are marked with the pragma "unknown_control_flow" to prevent tail call 610 * optimization, so that implementations can reliably use caller() to 611 * determine initiating module. 612 */ 613 #define KRTLD_MODE_FIRST 0x0001 614 typedef struct __ddi_modhandle *ddi_modhandle_t; 615 extern ddi_modhandle_t ddi_modopen(const char *, 616 int, int *); 617 extern void *ddi_modsym(ddi_modhandle_t, 618 const char *, int *); 619 extern int ddi_modclose(ddi_modhandle_t); 620 #pragma unknown_control_flow(ddi_modopen, ddi_modsym, ddi_modclose) 621 622 /* 623 * Only the following are part of the DDI/DKI 624 */ 625 extern int _init(void); 626 extern int _fini(void); 627 extern int _info(struct modinfo *); 628 extern int mod_install(struct modlinkage *); 629 extern int mod_remove(struct modlinkage *); 630 extern int mod_info(struct modlinkage *, struct modinfo *); 631 632 #else /* _KERNEL */ 633 634 extern int modctl(int, ...); 635 636 #endif /* _KERNEL */ 637 638 /* 639 * bit definitions for moddebug. 640 */ 641 #define MODDEBUG_LOADMSG 0x80000000 /* print "[un]loading..." msg */ 642 #define MODDEBUG_ERRMSG 0x40000000 /* print detailed error msgs */ 643 #define MODDEBUG_LOADMSG2 0x20000000 /* print 2nd level msgs */ 644 #define MODDEBUG_FINI_EBUSY 0x00020000 /* pretend fini returns EBUSY */ 645 #define MODDEBUG_NOAUL_IPP 0x00010000 /* no Autounloading ipp mods */ 646 #define MODDEBUG_NOAUL_DACF 0x00008000 /* no Autounloading dacf mods */ 647 #define MODDEBUG_KEEPTEXT 0x00004000 /* keep text after unloading */ 648 #define MODDEBUG_NOAUL_DRV 0x00001000 /* no Autounloading Drivers */ 649 #define MODDEBUG_NOAUL_EXEC 0x00000800 /* no Autounloading Execs */ 650 #define MODDEBUG_NOAUL_FS 0x00000400 /* no Autounloading File sys */ 651 #define MODDEBUG_NOAUL_MISC 0x00000200 /* no Autounloading misc */ 652 #define MODDEBUG_NOAUL_SCHED 0x00000100 /* no Autounloading scheds */ 653 #define MODDEBUG_NOAUL_STR 0x00000080 /* no Autounloading streams */ 654 #define MODDEBUG_NOAUL_SYS 0x00000040 /* no Autounloading syscalls */ 655 #define MODDEBUG_NOCTF 0x00000020 /* do not load CTF debug data */ 656 #define MODDEBUG_NOAUTOUNLOAD 0x00000010 /* no autounloading at all */ 657 #define MODDEBUG_DDI_MOD 0x00000008 /* ddi_mod{open,sym,close} */ 658 #define MODDEBUG_MP_MATCH 0x00000004 /* dev_minorperm */ 659 #define MODDEBUG_MINORPERM 0x00000002 /* minor perm modctls */ 660 #define MODDEBUG_USERDEBUG 0x00000001 /* bpt after init_module() */ 661 662 #ifdef __cplusplus 663 } 664 #endif 665 666 #endif /* _SYS_MODCTL_H */ 667