usr/src/uts/common/sys/modctl.h

   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 2009 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 /*
  30  * loadable module support.
  31  */
  32
  33 #include <sys/types.h>
  34 #include <sys/ioccom.h>
  35 #include <sys/nexusdefs.h>
  36 #include <sys/thread.h>
  37 #include <sys/t_lock.h>
  38 #include <sys/dditypes.h>
  39 #include <sys/hwconf.h>
  40
  41 #ifdef  __cplusplus
  42 extern "C" {
  43 #endif
  44
  45 /*
  46  * The following structure defines the operations used by modctl
  47  * to load and unload modules.  Each supported loadable module type
  48  * requires a set of mod_ops.
  49  */
  50 struct mod_ops {
  51         int             (*modm_install)();      /* install module in kernel */
  52         int             (*modm_remove)();       /* remove from kernel */
  53         int             (*modm_info)();         /* module info */
  54 };
  55
  56 #ifdef _KERNEL
  57
  58 /*
  59  * The defined set of mod_ops structures for each loadable module type
  60  * Defined in modctl.c
  61  */
  62 extern struct mod_ops mod_brandops;
  63 #if defined(__i386) || defined(__amd64)
  64 extern struct mod_ops mod_cpuops;
  65 #endif
  66 extern struct mod_ops mod_cryptoops;
  67 extern struct mod_ops mod_driverops;
  68 extern struct mod_ops mod_execops;
  69 extern struct mod_ops mod_fsops;
  70 extern struct mod_ops mod_miscops;
  71 extern struct mod_ops mod_schedops;
  72 extern struct mod_ops mod_strmodops;
  73 extern struct mod_ops mod_syscallops;
  74 extern struct mod_ops mod_sockmodops;
  75 #ifdef _SYSCALL32_IMPL
  76 extern struct mod_ops mod_syscallops32;
  77 #endif
  78 extern struct mod_ops mod_dacfops;
  79 extern struct mod_ops mod_ippops;
  80 extern struct mod_ops mod_pcbeops;
  81 extern struct mod_ops mod_devfsops;
  82 extern struct mod_ops mod_kiconvops;
  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_v5        *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 /* For socket Modules. */
 194 struct modlsockmod {
 195         struct mod_ops          *sockmod_modops;
 196         char                    *sockmod_linkinfo;
 197         struct smod_reg_s       *sockmod_reg_info;
 198 };
 199
 200 /* For kiconv modules */
 201 struct modlkiconv {
 202         struct mod_ops          *kiconv_modops;
 203         char                    *kiconv_linkinfo;
 204         struct kiconv_mod_info  *kiconv_moddef;
 205 };
 206
 207 /*
 208  * Revision number of loadable modules support.  This is the value
 209  * that must be used in the modlinkage structure.
 210  */
 211 #define MODREV_1                1
 212
 213 /*
 214  * The modlinkage structure is the structure that the module writer
 215  * provides to the routines to install, remove, and stat a module.
 216  * The ml_linkage element is an array of pointers to linkage structures.
 217  * For most modules there is only one linkage structure.  We allocate
 218  * enough space for 3 linkage structures which happens to be the most
 219  * we have in any sun supplied module.  For those modules with more
 220  * than 3 linkage structures (which is very unlikely), a modlinkage
 221  * structure must be kmem_alloc'd in the module wrapper to be big enough
 222  * for all of the linkage structures.
 223  */
 224 struct modlinkage {
 225         int             ml_rev;         /* rev of loadable modules system */
 226 #ifdef _LP64
 227         void            *ml_linkage[7]; /* more space in 64-bit OS */
 228 #else
 229         void            *ml_linkage[4]; /* NULL terminated list of */
 230                                         /* linkage structures */
 231 #endif
 232 };
 233
 234 /*
 235  * commands.  These are the commands supported by the modctl system call.
 236  */
 237 #define MODLOAD                 0
 238 #define MODUNLOAD               1
 239 #define MODINFO                 2
 240 #define MODRESERVED             3
 241 #define MODSETMINIROOT          4
 242 #define MODADDMAJBIND           5
 243 #define MODGETPATH              6
 244 #define MODREADSYSBIND          7
 245 #define MODGETMAJBIND           8
 246 #define MODGETNAME              9
 247 #define MODSIZEOF_DEVID         10
 248 #define MODGETDEVID             11
 249 #define MODSIZEOF_MINORNAME     12
 250 #define MODGETMINORNAME         13
 251 #define MODGETPATHLEN           14
 252 #define MODEVENTS               15
 253 #define MODGETFBNAME            16
 254 #define MODREREADDACF           17
 255 #define MODLOADDRVCONF          18
 256 #define MODUNLOADDRVCONF        19
 257 #define MODREMMAJBIND           20
 258 #define MODDEVT2INSTANCE        21
 259 #define MODGETDEVFSPATH_LEN     22
 260 #define MODGETDEVFSPATH         23
 261 #define MODDEVID2PATHS          24
 262 #define MODSETDEVPOLICY         26
 263 #define MODGETDEVPOLICY         27
 264 #define MODALLOCPRIV            28
 265 #define MODGETDEVPOLICYBYNAME   29
 266 #define MODLOADMINORPERM        31
 267 #define MODADDMINORPERM         32
 268 #define MODREMMINORPERM         33
 269 #define MODREMDRVCLEANUP        34
 270 #define MODDEVEXISTS            35
 271 #define MODDEVREADDIR           36
 272 #define MODDEVNAME              37
 273 #define MODGETDEVFSPATH_MI_LEN  38
 274 #define MODGETDEVFSPATH_MI      39
 275 #define MODRETIRE               40
 276 #define MODUNRETIRE             41
 277 #define MODISRETIRED            42
 278 #define MODDEVEMPTYDIR          43
 279 #define MODREMDRVALIAS          44
 280
 281 /*
 282  * sub cmds for MODEVENTS
 283  */
 284 #define MODEVENTS_FLUSH                         0
 285 #define MODEVENTS_FLUSH_DUMP                    1
 286 #define MODEVENTS_SET_DOOR_UPCALL_FILENAME      2
 287 #define MODEVENTS_GETDATA                       3
 288 #define MODEVENTS_FREEDATA                      4
 289 #define MODEVENTS_POST_EVENT                    5
 290 #define MODEVENTS_REGISTER_EVENT                6
 291
 292 /*
 293  * devname subcmds for MODDEVNAME
 294  */
 295 #define MODDEVNAME_LOOKUPDOOR   0
 296 #define MODDEVNAME_DEVFSADMNODE 1
 297 #define MODDEVNAME_NSMAPS       2
 298 #define MODDEVNAME_PROFILE      3
 299 #define MODDEVNAME_RECONFIG     4
 300 #define MODDEVNAME_SYSAVAIL     5
 301
 302
 303 /*
 304  * Data structure passed to modconfig command in kernel to build devfs tree
 305  */
 306
 307 struct aliases {
 308         struct aliases *a_next;
 309         char *a_name;
 310         int a_len;
 311 };
 312
 313 #define MAXMODCONFNAME  256
 314
 315 struct modconfig {
 316         char drvname[MAXMODCONFNAME];
 317         char drvclass[MAXMODCONFNAME];
 318         int major;
 319         int flags;
 320         int num_aliases;
 321         struct aliases *ap;
 322 };
 323
 324 #if defined(_SYSCALL32)
 325
 326 struct aliases32 {
 327         caddr32_t a_next;
 328         caddr32_t a_name;
 329         int32_t a_len;
 330 };
 331
 332 struct modconfig32 {
 333         char drvname[MAXMODCONFNAME];
 334         char drvclass[MAXMODCONFNAME];
 335         int32_t major;
 336         int32_t flags;
 337         int32_t num_aliases;
 338         caddr32_t ap;
 339 };
 340
 341 #endif /* _SYSCALL32 */
 342
 343 /* flags for modconfig */
 344 #define MOD_UNBIND_OVERRIDE     0x01            /* fail unbind if in use */
 345
 346 /*
 347  * Max module path length
 348  */
 349 #define MOD_MAXPATH     256
 350
 351 /*
 352  * Default search path for modules ADDITIONAL to the directory
 353  * where the kernel components we booted from are.
 354  *
 355  * Most often, this will be "/platform/{platform}/kernel /kernel /usr/kernel",
 356  * but we don't wire it down here.
 357  */
 358 #define MOD_DEFPATH     "/kernel /usr/kernel"
 359
 360 /*
 361  * Default file name extension for autoloading modules.
 362  */
 363 #define MOD_DEFEXT      ""
 364
 365 /*
 366  * Parameters for modinfo
 367  */
 368 #define MODMAXNAMELEN 32                /* max module name length */
 369 #define MODMAXLINKINFOLEN 32            /* max link info length */
 370
 371 /*
 372  * Module specific information.
 373  */
 374 struct modspecific_info {
 375         char    msi_linkinfo[MODMAXLINKINFOLEN]; /* name in linkage struct */
 376         int     msi_p0;                 /* module specific information */
 377 };
 378
 379 /*
 380  * Structure returned by modctl with MODINFO command.
 381  */
 382 #define MODMAXLINK 10                   /* max linkages modinfo can handle */
 383
 384 struct modinfo {
 385         int                mi_info;             /* Flags for info wanted */
 386         int                mi_state;            /* Flags for module state */
 387         int                mi_id;               /* id of this loaded module */
 388         int                mi_nextid;           /* id of next module or -1 */
 389         caddr_t            mi_base;             /* virtual addr of text */
 390         size_t             mi_size;             /* size of module in bytes */
 391         int                mi_rev;              /* loadable modules rev */
 392         int                mi_loadcnt;          /* # of times loaded */
 393         char               mi_name[MODMAXNAMELEN]; /* name of module */
 394         struct modspecific_info mi_msinfo[MODMAXLINK];
 395                                                 /* mod specific info */
 396 };
 397
 398
 399 #if defined(_SYSCALL32)
 400
 401 #define MODMAXNAMELEN32 32              /* max module name length */
 402 #define MODMAXLINKINFOLEN32 32          /* max link info length */
 403 #define MODMAXLINK32 10                 /* max linkages modinfo can handle */
 404
 405 struct modspecific_info32 {
 406         char    msi_linkinfo[MODMAXLINKINFOLEN32]; /* name in linkage struct */
 407         int32_t msi_p0;                 /* module specific information */
 408 };
 409
 410 struct modinfo32 {
 411         int32_t            mi_info;             /* Flags for info wanted */
 412         int32_t            mi_state;            /* Flags for module state */
 413         int32_t            mi_id;               /* id of this loaded module */
 414         int32_t            mi_nextid;           /* id of next module or -1 */
 415         caddr32_t          mi_base;             /* virtual addr of text */
 416         uint32_t           mi_size;             /* size of module in bytes */
 417         int32_t            mi_rev;              /* loadable modules rev */
 418         int32_t            mi_loadcnt;          /* # of times loaded */
 419         char               mi_name[MODMAXNAMELEN32]; /* name of module */
 420         struct modspecific_info32 mi_msinfo[MODMAXLINK32];
 421                                                 /* mod specific info */
 422 };
 423
 424 #endif /* _SYSCALL32 */
 425
 426 /* Values for mi_info flags */
 427 #define MI_INFO_ONE     1
 428 #define MI_INFO_ALL     2
 429 #define MI_INFO_CNT     4
 430 #ifdef _KERNEL
 431 #define MI_INFO_LINKAGE 8       /* used internally to extract modlinkage */
 432 #endif
 433 /*
 434  * MI_INFO_NOBASE indicates caller does not need mi_base. Failure to use this
 435  * flag may lead 32-bit apps to receive an EOVERFLOW error from modctl(MODINFO)
 436  * when used with a 64-bit kernel.
 437  */
 438 #define MI_INFO_NOBASE  16
 439
 440 /* Values for mi_state */
 441 #define MI_LOADED       1
 442 #define MI_INSTALLED    2
 443
 444 /*
 445  * Macros to vector to the appropriate module specific routine.
 446  */
 447 #define MODL_INSTALL(MODL, MODLP) \
 448         (*(MODL)->misc_modops->modm_install)(MODL, MODLP)
 449 #define MODL_REMOVE(MODL, MODLP) \
 450         (*(MODL)->misc_modops->modm_remove)(MODL, MODLP)
 451 #define MODL_INFO(MODL, MODLP, P0) \
 452         (*(MODL)->misc_modops->modm_info)(MODL, MODLP, P0)
 453
 454 /*
 455  * Definitions for stubs
 456  */
 457 struct mod_stub_info {
 458         uintptr_t mods_func_adr;
 459         struct mod_modinfo *mods_modinfo;
 460         uintptr_t mods_stub_adr;
 461         int (*mods_errfcn)();
 462         int mods_flag;                  /* flags defined below */
 463 };
 464
 465 /*
 466  * Definitions for mods_flag.
 467  */
 468 #define MODS_WEAK       0x01            /* weak stub (not loaded if called) */
 469 #define MODS_NOUNLOAD   0x02            /* module not unloadable (no _fini()) */
 470 #define MODS_INSTALLED  0x10            /* module installed */
 471
 472 struct mod_modinfo {
 473         char *modm_module_name;
 474         struct modctl *mp;
 475         struct mod_stub_info modm_stubs[1];
 476 };
 477
 478 struct modctl_list {
 479         struct modctl_list *modl_next;
 480         struct modctl *modl_modp;
 481 };
 482
 483 /*
 484  * Structure to manage a loadable module.
 485  * Note: the module (mod_mp) structure's "text" and "text_size" information
 486  * are replicated in the modctl structure so that mod_containing_pc()
 487  * doesn't have to grab any locks (modctls are persistent; modules are not.)
 488  */
 489 typedef struct modctl {
 490         struct modctl   *mod_next;      /* &modules based list */
 491         struct modctl   *mod_prev;
 492         int             mod_id;
 493         void            *mod_mp;
 494         kthread_t       *mod_inprogress_thread;
 495         struct mod_modinfo *mod_modinfo;
 496         struct modlinkage *mod_linkage;
 497         char            *mod_filename;
 498         char            *mod_modname;
 499
 500         char            mod_busy;       /* inprogress_thread has locked */
 501         char            mod_want;       /* someone waiting for unlock */
 502         char            mod_prim;       /* primary module */
 503
 504         int             mod_ref;        /* ref count - from dependent or stub */
 505
 506         char            mod_loaded;     /* module in memory */
 507         char            mod_installed;  /* post _init pre _fini */
 508         char            mod_loadflags;
 509         char            mod_delay_unload;       /* deferred unload */
 510
 511         struct modctl_list *mod_requisites;     /* mods this one depends on. */
 512         void            *__unused;      /* NOTE: reuse (same size) is OK, */
 513                                         /* deletion causes mdb.vs.core issues */
 514         int             mod_loadcnt;    /* number of times mod was loaded */
 515         int             mod_nenabled;   /* # of enabled DTrace probes in mod */
 516         char            *mod_text;
 517         size_t          mod_text_size;
 518
 519         int             mod_gencount;   /* # times loaded/unloaded */
 520         struct modctl   *mod_requisite_loading; /* mod circular dependency */
 521 } modctl_t;
 522
 523 /*
 524  * mod_loadflags
 525  */
 526
 527 #define MOD_NOAUTOUNLOAD        0x1     /* Auto mod-unloader skips this mod */
 528 #define MOD_NONOTIFY            0x2     /* No krtld notifications on (un)load */
 529 #define MOD_NOUNLOAD            0x4     /* Assume EBUSY for all _fini's */
 530
 531
 532 #ifdef _KERNEL
 533
 534 #define MOD_BIND_HASHSIZE       64
 535 #define MOD_BIND_HASHMASK       (MOD_BIND_HASHSIZE-1)
 536
 537 typedef int modid_t;
 538
 539 /*
 540  * global function and data declarations
 541  */
 542 extern kmutex_t mod_lock;
 543
 544 extern char *systemfile;
 545 extern char **syscallnames;
 546 extern int moddebug;
 547
 548 /*
 549  * this is the head of a doubly linked list.  Only the next and prev
 550  * pointers are used
 551  */
 552 extern modctl_t modules;
 553
 554 extern int modload_qualified(const char *,
 555     const char *, const char *, const char *, uint_t[], int, int *);
 556
 557 extern void     mod_setup(void);
 558 extern int      modload(const char *, const char *);
 559 extern int      modloadonly(const char *, const char *);
 560 extern int      modunload(int);
 561 extern int      mod_hold_stub(struct mod_stub_info *);
 562 extern void     modunload_disable(void);
 563 extern void     modunload_enable(void);
 564 extern void     modunload_begin(void);
 565 extern void     modunload_end(void);
 566 extern int      mod_remove_by_name(char *);
 567 extern int      mod_sysvar(const char *, const char *, u_longlong_t *);
 568 extern int      mod_sysctl(int, void *);
 569 struct sysparam;
 570 extern int      mod_hold_by_modctl(modctl_t *, int);
 571 #define         MOD_WAIT_ONCE           0x01
 572 #define         MOD_WAIT_FOREVER        0x02
 573 #define         MOD_LOCK_HELD           0x04
 574 #define         MOD_LOCK_NOT_HELD       0x08
 575 extern int      mod_sysctl_type(int, int (*)(struct sysparam *, void *),
 576     void *);
 577 extern void     mod_read_system_file(int);
 578 extern void     mod_release_stub(struct mod_stub_info *);
 579 extern void     mod_askparams(void);
 580 extern void     mod_uninstall_daemon(void);
 581 extern void     modreap(void);
 582 extern modctl_t *mod_hold_by_id(modid_t);
 583 extern modctl_t *mod_hold_by_name(const char *);
 584 extern void     mod_release_mod(modctl_t *);
 585 extern uintptr_t modlookup(const char *, const char *);
 586 extern uintptr_t modlookup_by_modctl(modctl_t *, const char *);
 587 extern char     *modgetsymname(uintptr_t, unsigned long *);
 588 extern void     mod_release_requisites(modctl_t *);
 589 extern modctl_t *mod_load_requisite(modctl_t *, char *);
 590 extern modctl_t *mod_find_by_filename(char *, char *);
 591 extern uintptr_t        modgetsymvalue(char *, int);
 592
 593 extern void     mod_rele_dev_by_major(major_t);
 594 extern struct dev_ops *mod_hold_dev_by_major(major_t);
 595 extern struct dev_ops *mod_hold_dev_by_devi(dev_info_t *);
 596 extern void     mod_rele_dev_by_devi(dev_info_t *);
 597
 598 extern int make_devname(char *, major_t);
 599 extern int gmatch(const char *, const char *);
 600
 601 extern void make_aliases(struct bind **);
 602 extern int read_binding_file(char *, struct bind **,
 603     int (*line_parser)(char *, int, char *, struct bind **));
 604 extern void clear_binding_hash(struct bind **);
 605
 606 extern void read_class_file(void);
 607 extern void setbootpath(char *);
 608 extern void setbootfstype(char *);
 609
 610 extern int install_stubs_by_name(modctl_t *, char *);
 611 extern void install_stubs(modctl_t *);
 612 extern void uninstall_stubs(modctl_t *);
 613 extern void reset_stubs(modctl_t *);
 614 extern modctl_t *mod_getctl(struct modlinkage *);
 615 extern major_t mod_name_to_major(char *);
 616 extern modid_t mod_name_to_modid(char *);
 617 extern char *mod_major_to_name(major_t);
 618 extern void init_devnamesp(int);
 619 extern void init_syscallnames(int);
 620
 621 extern char *mod_getsysname(int);
 622 extern int mod_getsysnum(char *);
 623
 624 extern char *mod_containing_pc(caddr_t);
 625 extern int mod_in_autounload(void);
 626 extern const char *mod_modname(struct modlinkage *);
 627
 628 extern int dev_minorperm(dev_info_t *, char *, mperm_t *);
 629 extern void dev_devices_cleanup(void);
 630
 631 /*
 632  * Declarations used for dynamic linking support routines.  Interfaces
 633  * are marked with the pragma "unknown_control_flow" to prevent tail call
 634  * optimization, so that implementations can reliably use caller() to
 635  * determine initiating module.
 636  */
 637 #define KRTLD_MODE_FIRST        0x0001
 638 typedef struct __ddi_modhandle  *ddi_modhandle_t;
 639 extern ddi_modhandle_t          ddi_modopen(const char *,
 640                                     int, int *);
 641 extern void                     *ddi_modsym(ddi_modhandle_t,
 642                                     const char *, int *);
 643 extern int                      ddi_modclose(ddi_modhandle_t);
 644 #pragma unknown_control_flow(ddi_modopen, ddi_modsym, ddi_modclose)
 645
 646 /*
 647  * Only the following are part of the DDI/DKI
 648  */
 649 extern int      _init(void);
 650 extern int      _fini(void);
 651 extern int      _info(struct modinfo *);
 652 extern int      mod_install(struct modlinkage *);
 653 extern int      mod_remove(struct modlinkage *);
 654 extern int      mod_info(struct modlinkage *, struct modinfo *);
 655
 656 #else   /* _KERNEL */
 657
 658 extern int modctl(int, ...);
 659
 660 #endif  /* _KERNEL */
 661
 662 /*
 663  * bit definitions for moddebug.
 664  */
 665 #define MODDEBUG_LOADMSG        0x80000000      /* print "[un]loading..." msg */
 666 #define MODDEBUG_ERRMSG         0x40000000      /* print detailed error msgs */
 667 #define MODDEBUG_LOADMSG2       0x20000000      /* print 2nd level msgs */
 668 #define MODDEBUG_RETIRE         0x10000000      /* print retire msgs */
 669 #define MODDEBUG_BINDING        0x00040000      /* driver/alias binding */
 670 #define MODDEBUG_FINI_EBUSY     0x00020000      /* pretend fini returns EBUSY */
 671 #define MODDEBUG_NOAUL_IPP      0x00010000      /* no Autounloading ipp mods */
 672 #define MODDEBUG_NOAUL_DACF     0x00008000      /* no Autounloading dacf mods */
 673 #define MODDEBUG_KEEPTEXT       0x00004000      /* keep text after unloading */
 674 #define MODDEBUG_NOAUL_DRV      0x00001000      /* no Autounloading Drivers */
 675 #define MODDEBUG_NOAUL_EXEC     0x00000800      /* no Autounloading Execs */
 676 #define MODDEBUG_NOAUL_FS       0x00000400      /* no Autounloading File sys */
 677 #define MODDEBUG_NOAUL_MISC     0x00000200      /* no Autounloading misc */
 678 #define MODDEBUG_NOAUL_SCHED    0x00000100      /* no Autounloading scheds */
 679 #define MODDEBUG_NOAUL_STR      0x00000080      /* no Autounloading streams */
 680 #define MODDEBUG_NOAUL_SYS      0x00000040      /* no Autounloading syscalls */
 681 #define MODDEBUG_NOCTF          0x00000020      /* do not load CTF debug data */
 682 #define MODDEBUG_NOAUTOUNLOAD   0x00000010      /* no autounloading at all */
 683 #define MODDEBUG_DDI_MOD        0x00000008      /* ddi_mod{open,sym,close} */
 684 #define MODDEBUG_MP_MATCH       0x00000004      /* dev_minorperm */
 685 #define MODDEBUG_MINORPERM      0x00000002      /* minor perm modctls */
 686 #define MODDEBUG_USERDEBUG      0x00000001      /* bpt after init_module() */
 687
 688 #ifdef  __cplusplus
 689 }
 690 #endif
 691
 692 #endif  /* _SYS_MODCTL_H */