include/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 (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 #ifndef _SYS_MODCTL_H
  26 #define _SYS_MODCTL_H
  27
  28 /*
  29  * loadable module support.
  30  */
  31
  32 #include <sys/types.h>
  33 #include <sys/ioccom.h>
  34 #include <sys/nexusdefs.h>
  35 #include <sys/thread.h>
  36 #include <sys/t_lock.h>
  37 #include <sys/dditypes.h>
  38 #include <sys/hwconf.h>
  39
  40 #ifdef  __cplusplus
  41 extern "C" {
  42 #endif
  43
  44 /*
  45  * The following structure defines the operations used by modctl
  46  * to load and unload modules.  Each supported loadable module type
  47  * requires a set of mod_ops.
  48  */
  49 struct mod_ops {
  50         int             (*modm_install)();      /* install module in kernel */
  51         int             (*modm_remove)();       /* remove from kernel */
  52         int             (*modm_info)();         /* module info */
  53 };
  54
  55 #ifdef _KERNEL
  56
  57 /*
  58  * The defined set of mod_ops structures for each loadable module type
  59  * Defined in modctl.c
  60  */
  61 extern struct mod_ops mod_brandops;
  62 #if defined(__i386) || defined(__amd64)
  63 extern struct mod_ops mod_cpuops;
  64 #endif
  65 extern struct mod_ops mod_cryptoops;
  66 extern struct mod_ops mod_driverops;
  67 extern struct mod_ops mod_execops;
  68 extern struct mod_ops mod_fsops;
  69 extern struct mod_ops mod_miscops;
  70 extern struct mod_ops mod_schedops;
  71 extern struct mod_ops mod_strmodops;
  72 extern struct mod_ops mod_syscallops;
  73 extern struct mod_ops mod_sockmodops;
  74 #ifdef _SYSCALL32_IMPL
  75 extern struct mod_ops mod_syscallops32;
  76 #endif
  77 extern struct mod_ops mod_dacfops;
  78 extern struct mod_ops mod_ippops;
  79 extern struct mod_ops mod_pcbeops;
  80 extern struct mod_ops mod_kiconvops;
  81
  82 #endif /* _KERNEL */
  83
  84 /*
  85  * Definitions for the module specific linkage structures.
  86  * The first two fields are the same in all of the structures.
  87  * The linkinfo is for informational purposes only and is returned by
  88  * modctl with the MODINFO cmd.
  89  */
  90
  91 /* For drivers */
  92 struct modldrv {
  93         struct mod_ops          *drv_modops;
  94         char                    *drv_linkinfo;
  95         struct dev_ops          *drv_dev_ops;
  96 };
  97
  98 /* For system calls */
  99 struct modlsys {
 100         struct mod_ops          *sys_modops;
 101         char                    *sys_linkinfo;
 102         struct sysent           *sys_sysent;
 103 };
 104
 105 /* For filesystems */
 106 struct modlfs {
 107         struct mod_ops          *fs_modops;
 108         char                    *fs_linkinfo;
 109         struct vfsdef_v5        *fs_vfsdef;     /* version may actually vary */
 110 };
 111
 112 #if defined(__i386) || defined(__amd64)
 113 struct cmi_ops;
 114
 115 /* For CPU modules */
 116 struct modlcpu {
 117         struct mod_ops          *cpu_modops;
 118         char                    *cpu_linkinfo;
 119         struct cmi_ops          *cpu_cmiops;
 120 };
 121 #endif
 122
 123 /* For cryptographic providers */
 124 struct modlcrypto {
 125         struct mod_ops          *crypto_modops;
 126         char                    *crypto_linkinfo;
 127 };
 128
 129 /* For misc */
 130 struct modlmisc {
 131         struct mod_ops          *misc_modops;
 132         char                    *misc_linkinfo;
 133 };
 134
 135 /* For IP Modules */
 136 struct modlipp {
 137         struct mod_ops          *ipp_modops;
 138         char                    *ipp_linkinfo;
 139         struct ipp_ops          *ipp_ops;
 140 };
 141
 142 /* For Streams Modules. */
 143 struct modlstrmod {
 144         struct mod_ops          *strmod_modops;
 145         char                    *strmod_linkinfo;
 146         struct fmodsw           *strmod_fmodsw;
 147 };
 148
 149 /* For Scheduling classes */
 150 struct modlsched {
 151         struct mod_ops          *sched_modops;
 152         char                    *sched_linkinfo;
 153         struct sclass           *sched_class;
 154 };
 155
 156 /* For Exec file type (like ELF, ...) */
 157 struct modlexec {
 158         struct mod_ops          *exec_modops;
 159         char                    *exec_linkinfo;
 160         struct execsw           *exec_execsw;
 161 };
 162
 163 /* For dacf modules */
 164 struct modldacf {
 165         struct mod_ops          *dacf_modops;
 166         char                    *dacf_linkinfo;
 167         struct dacfsw           *dacf_dacfsw;
 168 };
 169
 170 /* For PCBE modules */
 171 struct modlpcbe {
 172         struct mod_ops          *pcbe_modops;
 173         char                    *pcbe_linkinfo;
 174         struct __pcbe_ops       *pcbe_ops;
 175 };
 176
 177 /* For Brand modules */
 178 struct modlbrand {
 179         struct mod_ops          *brand_modops;
 180         char                    *brand_linkinfo;
 181         struct brand            *brand_branddef;
 182 };
 183
 184 /* For socket Modules. */
 185 struct modlsockmod {
 186         struct mod_ops          *sockmod_modops;
 187         char                    *sockmod_linkinfo;
 188         struct smod_reg_s       *sockmod_reg_info;
 189 };
 190
 191 /* For kiconv modules */
 192 struct modlkiconv {
 193         struct mod_ops          *kiconv_modops;
 194         char                    *kiconv_linkinfo;
 195         struct kiconv_mod_info  *kiconv_moddef;
 196 };
 197
 198 /*
 199  * Revision number of loadable modules support.  This is the value
 200  * that must be used in the modlinkage structure.
 201  */
 202 #define MODREV_1                1
 203
 204 /*
 205  * The modlinkage structure is the structure that the module writer
 206  * provides to the routines to install, remove, and stat a module.
 207  * The ml_linkage element is an array of pointers to linkage structures.
 208  * For most modules there is only one linkage structure.  We allocate
 209  * enough space for 3 linkage structures which happens to be the most
 210  * we have in any sun supplied module.  For those modules with more
 211  * than 3 linkage structures (which is very unlikely), a modlinkage
 212  * structure must be kmem_alloc'd in the module wrapper to be big enough
 213  * for all of the linkage structures.
 214  */
 215 struct modlinkage {
 216         int             ml_rev;         /* rev of loadable modules system */
 217 #ifdef _LP64
 218         void            *ml_linkage[7]; /* more space in 64-bit OS */
 219 #else
 220         void            *ml_linkage[4]; /* NULL terminated list of */
 221                                         /* linkage structures */
 222 #endif
 223 };
 224
 225 /*
 226  * commands.  These are the commands supported by the modctl system call.
 227  */
 228 #define MODLOAD                 0
 229 #define MODUNLOAD               1
 230 #define MODINFO                 2
 231 #define MODRESERVED             3
 232 #define MODSETMINIROOT          4
 233 #define MODADDMAJBIND           5
 234 #define MODGETPATH              6
 235 #define MODREADSYSBIND          7
 236 #define MODGETMAJBIND           8
 237 #define MODGETNAME              9
 238 #define MODSIZEOF_DEVID         10
 239 #define MODGETDEVID             11
 240 #define MODSIZEOF_MINORNAME     12
 241 #define MODGETMINORNAME         13
 242 #define MODGETPATHLEN           14
 243 #define MODEVENTS               15
 244 #define MODGETFBNAME            16
 245 #define MODREREADDACF           17
 246 #define MODLOADDRVCONF          18
 247 #define MODUNLOADDRVCONF        19
 248 #define MODREMMAJBIND           20
 249 #define MODDEVT2INSTANCE        21
 250 #define MODGETDEVFSPATH_LEN     22
 251 #define MODGETDEVFSPATH         23
 252 #define MODDEVID2PATHS          24
 253 #define MODSETDEVPOLICY         26
 254 #define MODGETDEVPOLICY         27
 255 #define MODALLOCPRIV            28
 256 #define MODGETDEVPOLICYBYNAME   29
 257 #define MODLOADMINORPERM        31
 258 #define MODADDMINORPERM         32
 259 #define MODREMMINORPERM         33
 260 #define MODREMDRVCLEANUP        34
 261 #define MODDEVEXISTS            35
 262 #define MODDEVREADDIR           36
 263 #define MODDEVNAME              37
 264 #define MODGETDEVFSPATH_MI_LEN  38
 265 #define MODGETDEVFSPATH_MI      39
 266 #define MODRETIRE               40
 267 #define MODUNRETIRE             41
 268 #define MODISRETIRED            42
 269 #define MODDEVEMPTYDIR          43
 270 #define MODREMDRVALIAS          44
 271 #define MODHPOPS                45
 272
 273 /*
 274  * sub cmds for MODEVENTS
 275  */
 276 #define MODEVENTS_FLUSH                         0
 277 #define MODEVENTS_FLUSH_DUMP                    1
 278 #define MODEVENTS_SET_DOOR_UPCALL_FILENAME      2
 279 #define MODEVENTS_GETDATA                       3
 280 #define MODEVENTS_FREEDATA                      4
 281 #define MODEVENTS_POST_EVENT                    5
 282 #define MODEVENTS_REGISTER_EVENT                6
 283
 284 /*
 285  * devname subcmds for MODDEVNAME
 286  */
 287 #define MODDEVNAME_LOOKUPDOOR   0
 288 #define MODDEVNAME_PROFILE      3
 289 #define MODDEVNAME_RECONFIG     4
 290 #define MODDEVNAME_SYSAVAIL     5
 291
 292 /*
 293  * subcmds for MODHPOPS
 294  */
 295 #define MODHPOPS_CHANGE_STATE   0
 296 #define MODHPOPS_CREATE_PORT    1
 297 #define MODHPOPS_REMOVE_PORT    2
 298 #define MODHPOPS_BUS_GET        3
 299 #define MODHPOPS_BUS_SET        4
 300
 301
 302 /*
 303  * Data structure passed to modconfig command in kernel to build devfs tree
 304  */
 305
 306 struct aliases {
 307         struct aliases *a_next;
 308         char *a_name;
 309         int a_len;
 310 };
 311
 312 #define MAXMODCONFNAME  256
 313
 314 struct modconfig {
 315         char drvname[MAXMODCONFNAME];
 316         char drvclass[MAXMODCONFNAME];
 317         int major;
 318         int flags;
 319         int num_aliases;
 320         struct aliases *ap;
 321 };
 322
 323 #if defined(_SYSCALL32)
 324
 325 struct aliases32 {
 326         caddr32_t a_next;
 327         caddr32_t a_name;
 328         int32_t a_len;
 329 };
 330
 331 struct modconfig32 {
 332         char drvname[MAXMODCONFNAME];
 333         char drvclass[MAXMODCONFNAME];
 334         int32_t major;
 335         int32_t flags;
 336         int32_t num_aliases;
 337         caddr32_t ap;
 338 };
 339
 340 #endif /* _SYSCALL32 */
 341
 342 /* flags for modconfig */
 343 #define MOD_UNBIND_OVERRIDE     0x01            /* fail unbind if in use */
 344 #define MOD_ADDMAJBIND_UPDATE   0x02            /* update only, do not load */
 345
 346 /* flags for MODLOADDRVCONF - modctl_load_drvconf() */
 347 #define MOD_LOADDRVCONF_RECONF  0x01            /* complete configuration */
 348                                                 /* after update-only */
 349
 350 /*
 351  * Max module path length
 352  */
 353 #define MOD_MAXPATH     256
 354
 355 /*
 356  * Default search path for modules ADDITIONAL to the directory
 357  * where the kernel components we booted from are.
 358  *
 359  * Most often, this will be "/platform/{platform}/kernel /kernel /usr/kernel",
 360  * but we don't wire it down here.
 361  */
 362 #define MOD_DEFPATH     "/kernel /usr/kernel"
 363
 364 /*
 365  * Default file name extension for autoloading modules.
 366  */
 367 #define MOD_DEFEXT      ""
 368
 369 /*
 370  * Parameters for modinfo
 371  */
 372 #define MODMAXNAMELEN 32                /* max module name length */
 373 #define MODMAXLINKINFOLEN 32            /* max link info length */
 374
 375 /*
 376  * Module specific information.
 377  */
 378 struct modspecific_info {
 379         char    msi_linkinfo[MODMAXLINKINFOLEN]; /* name in linkage struct */
 380         int     msi_p0;                 /* module specific information */
 381 };
 382
 383 /*
 384  * Structure returned by modctl with MODINFO command.
 385  */
 386 #define MODMAXLINK 10                   /* max linkages modinfo can handle */
 387
 388 struct modinfo {
 389         int                mi_info;             /* Flags for info wanted */
 390         int                mi_state;            /* Flags for module state */
 391         int                mi_id;               /* id of this loaded module */
 392         int                mi_nextid;           /* id of next module or -1 */
 393         caddr_t            mi_base;             /* virtual addr of text */
 394         size_t             mi_size;             /* size of module in bytes */
 395         int                mi_rev;              /* loadable modules rev */
 396         int                mi_loadcnt;          /* # of times loaded */
 397         char               mi_name[MODMAXNAMELEN]; /* name of module */
 398         struct modspecific_info mi_msinfo[MODMAXLINK];
 399                                                 /* mod specific info */
 400 };
 401
 402
 403 #if defined(_SYSCALL32)
 404
 405 #define MODMAXNAMELEN32 32              /* max module name length */
 406 #define MODMAXLINKINFOLEN32 32          /* max link info length */
 407 #define MODMAXLINK32 10                 /* max linkages modinfo can handle */
 408
 409 struct modspecific_info32 {
 410         char    msi_linkinfo[MODMAXLINKINFOLEN32]; /* name in linkage struct */
 411         int32_t msi_p0;                 /* module specific information */
 412 };
 413
 414 struct modinfo32 {
 415         int32_t            mi_info;             /* Flags for info wanted */
 416         int32_t            mi_state;            /* Flags for module state */
 417         int32_t            mi_id;               /* id of this loaded module */
 418         int32_t            mi_nextid;           /* id of next module or -1 */
 419         caddr32_t          mi_base;             /* virtual addr of text */
 420         uint32_t           mi_size;             /* size of module in bytes */
 421         int32_t            mi_rev;              /* loadable modules rev */
 422         int32_t            mi_loadcnt;          /* # of times loaded */
 423         char               mi_name[MODMAXNAMELEN32]; /* name of module */
 424         struct modspecific_info32 mi_msinfo[MODMAXLINK32];
 425                                                 /* mod specific info */
 426 };
 427
 428 #endif /* _SYSCALL32 */
 429
 430 /* Values for mi_info flags */
 431 #define MI_INFO_ONE     1
 432 #define MI_INFO_ALL     2
 433 #define MI_INFO_CNT     4
 434 #ifdef _KERNEL
 435 #define MI_INFO_LINKAGE 8       /* used internally to extract modlinkage */
 436 #endif
 437 /*
 438  * MI_INFO_NOBASE indicates caller does not need mi_base. Failure to use this
 439  * flag may lead 32-bit apps to receive an EOVERFLOW error from modctl(MODINFO)
 440  * when used with a 64-bit kernel.
 441  */
 442 #define MI_INFO_NOBASE  16
 443
 444 /* Values for mi_state */
 445 #define MI_LOADED       1
 446 #define MI_INSTALLED    2
 447
 448 /*
 449  * Macros to vector to the appropriate module specific routine.
 450  */
 451 #define MODL_INSTALL(MODL, MODLP) \
 452         (*(MODL)->misc_modops->modm_install)(MODL, MODLP)
 453 #define MODL_REMOVE(MODL, MODLP) \
 454         (*(MODL)->misc_modops->modm_remove)(MODL, MODLP)
 455 #define MODL_INFO(MODL, MODLP, P0) \
 456         (*(MODL)->misc_modops->modm_info)(MODL, MODLP, P0)
 457
 458 /*
 459  * Definitions for stubs
 460  */
 461 struct mod_stub_info {
 462         uintptr_t mods_func_adr;
 463         struct mod_modinfo *mods_modinfo;
 464         uintptr_t mods_stub_adr;
 465         int (*mods_errfcn)();
 466         int mods_flag;                  /* flags defined below */
 467 };
 468
 469 /*
 470  * Definitions for mods_flag.
 471  */
 472 #define MODS_WEAK       0x01            /* weak stub (not loaded if called) */
 473 #define MODS_NOUNLOAD   0x02            /* module not unloadable (no _fini()) */
 474 #define MODS_INSTALLED  0x10            /* module installed */
 475
 476 struct mod_modinfo {
 477         char *modm_module_name;
 478         struct modctl *mp;
 479         struct mod_stub_info modm_stubs[1];
 480 };
 481
 482 struct modctl_list {
 483         struct modctl_list *modl_next;
 484         struct modctl *modl_modp;
 485 };
 486
 487 /*
 488  * Structure to manage a loadable module.
 489  * Note: the module (mod_mp) structure's "text" and "text_size" information
 490  * are replicated in the modctl structure so that mod_containing_pc()
 491  * doesn't have to grab any locks (modctls are persistent; modules are not.)
 492  */
 493 typedef struct modctl {
 494         struct modctl   *mod_next;      /* &modules based list */
 495         struct modctl   *mod_prev;
 496         int             mod_id;
 497         void            *mod_mp;
 498         kthread_t       *mod_inprogress_thread;
 499         struct mod_modinfo *mod_modinfo;
 500         struct modlinkage *mod_linkage;
 501         char            *mod_filename;
 502         char            *mod_modname;
 503
 504         char            mod_busy;       /* inprogress_thread has locked */
 505         char            mod_want;       /* someone waiting for unlock */
 506         char            mod_prim;       /* primary module */
 507
 508         int             mod_ref;        /* ref count - from dependent or stub */
 509
 510         char            mod_loaded;     /* module in memory */
 511         char            mod_installed;  /* post _init pre _fini */
 512         char            mod_loadflags;
 513         char            mod_delay_unload;       /* deferred unload */
 514
 515         struct modctl_list *mod_requisites;     /* mods this one depends on. */
 516         void            *__unused;      /* NOTE: reuse (same size) is OK, */
 517                                         /* deletion causes mdb.vs.core issues */
 518         int             mod_loadcnt;    /* number of times mod was loaded */
 519         int             mod_nenabled;   /* # of enabled DTrace probes in mod */
 520         char            *mod_text;
 521         size_t          mod_text_size;
 522
 523         int             mod_gencount;   /* # times loaded/unloaded */
 524         struct modctl   *mod_requisite_loading; /* mod circular dependency */
 525 } modctl_t;
 526
 527 /*
 528  * mod_loadflags
 529  */
 530
 531 #define MOD_NOAUTOUNLOAD        0x1     /* Auto mod-unloader skips this mod */
 532 #define MOD_NONOTIFY            0x2     /* No krtld notifications on (un)load */
 533 #define MOD_NOUNLOAD            0x4     /* Assume EBUSY for all _fini's */
 534
 535
 536 #ifdef _KERNEL
 537
 538 #define MOD_BIND_HASHSIZE       64
 539 #define MOD_BIND_HASHMASK       (MOD_BIND_HASHSIZE-1)
 540
 541 typedef int modid_t;
 542
 543 /*
 544  * global function and data declarations
 545  */
 546 extern kmutex_t mod_lock;
 547
 548 extern char *systemfile;
 549 extern char **syscallnames;
 550 extern int moddebug;
 551
 552 /*
 553  * this is the head of a doubly linked list.  Only the next and prev
 554  * pointers are used
 555  */
 556 extern modctl_t modules;
 557
 558 extern int modload_qualified(const char *,
 559     const char *, const char *, const char *, uint_t[], int, int *);
 560
 561 extern void     mod_setup(void);
 562 extern int      modload(const char *, const char *);
 563 extern int      modloadonly(const char *, const char *);
 564 extern int      modunload(int);
 565 extern int      mod_hold_stub(struct mod_stub_info *);
 566 extern void     modunload_disable(void);
 567 extern void     modunload_enable(void);
 568 extern void     modunload_begin(void);
 569 extern void     modunload_end(void);
 570 extern int      mod_remove_by_name(char *);
 571 extern int      mod_sysvar(const char *, const char *, u_longlong_t *);
 572 extern int      mod_sysctl(int, void *);
 573 struct sysparam;
 574 extern int      mod_hold_by_modctl(modctl_t *, int);
 575 #define         MOD_WAIT_ONCE           0x01
 576 #define         MOD_WAIT_FOREVER        0x02
 577 #define         MOD_LOCK_HELD           0x04
 578 #define         MOD_LOCK_NOT_HELD       0x08
 579 extern int      mod_sysctl_type(int, int (*)(struct sysparam *, void *),
 580     void *);
 581 extern void     mod_read_system_file(int);
 582 extern void     mod_release_stub(struct mod_stub_info *);
 583 extern void     mod_askparams(void);
 584 extern void     mod_uninstall_daemon(void);
 585 extern void     modreap(void);
 586 extern modctl_t *mod_hold_by_id(modid_t);
 587 extern modctl_t *mod_hold_by_name(const char *);
 588 extern void     mod_release_mod(modctl_t *);
 589 extern uintptr_t modlookup(const char *, const char *);
 590 extern uintptr_t modlookup_by_modctl(modctl_t *, const char *);
 591 extern char     *modgetsymname(uintptr_t, unsigned long *);
 592 extern void     mod_release_requisites(modctl_t *);
 593 extern modctl_t *mod_load_requisite(modctl_t *, char *);
 594 extern modctl_t *mod_find_by_filename(char *, char *);
 595 extern uintptr_t        modgetsymvalue(char *, int);
 596
 597 extern int      major_valid(major_t);
 598 extern int      driver_installed(major_t);
 599 extern int      driver_active(major_t);
 600
 601 extern void     mod_rele_dev_by_major(major_t);
 602 extern struct dev_ops *mod_hold_dev_by_major(major_t);
 603 extern struct dev_ops *mod_hold_dev_by_devi(dev_info_t *);
 604 extern void     mod_rele_dev_by_devi(dev_info_t *);
 605
 606 extern int make_devname(char *, major_t, int);
 607 extern int gmatch(const char *, const char *);
 608
 609 extern void make_aliases(struct bind **);
 610 extern int read_binding_file(char *, struct bind **,
 611     int (*line_parser)(char *, int, char *, struct bind **));
 612 extern void clear_binding_hash(struct bind **);
 613
 614 extern void read_class_file(void);
 615 extern void setbootpath(char *);
 616 extern void setbootfstype(char *);
 617
 618 extern int install_stubs_by_name(modctl_t *, char *);
 619 extern void install_stubs(modctl_t *);
 620 extern void uninstall_stubs(modctl_t *);
 621 extern void reset_stubs(modctl_t *);
 622 extern modctl_t *mod_getctl(struct modlinkage *);
 623 extern major_t mod_name_to_major(char *);
 624 extern modid_t mod_name_to_modid(char *);
 625 extern char *mod_major_to_name(major_t);
 626 extern void init_devnamesp(int);
 627 extern void init_syscallnames(int);
 628
 629 extern char *mod_getsysname(int);
 630 extern int mod_getsysnum(char *);
 631
 632 extern char *mod_containing_pc(caddr_t);
 633 extern int mod_in_autounload(void);
 634 extern const char *mod_modname(struct modlinkage *);
 635
 636 extern int dev_minorperm(dev_info_t *, char *, mperm_t *);
 637 extern void dev_devices_cleanup(void);
 638
 639 /*
 640  * Declarations used for dynamic linking support routines.  Interfaces
 641  * are marked with the pragma "unknown_control_flow" to prevent tail call
 642  * optimization, so that implementations can reliably use caller() to
 643  * determine initiating module.
 644  */
 645 #define KRTLD_MODE_FIRST        0x0001
 646 typedef struct __ddi_modhandle  *ddi_modhandle_t;
 647 extern ddi_modhandle_t          ddi_modopen(const char *,
 648                                     int, int *);
 649 extern void                     *ddi_modsym(ddi_modhandle_t,
 650                                     const char *, int *);
 651 extern int                      ddi_modclose(ddi_modhandle_t);
 652 #pragma unknown_control_flow(ddi_modopen, ddi_modsym, ddi_modclose)
 653
 654 /*
 655  * Only the following are part of the DDI/DKI
 656  */
 657 extern int      _init(void);
 658 extern int      _fini(void);
 659 extern int      _info(struct modinfo *);
 660 extern int      mod_install(struct modlinkage *);
 661 extern int      mod_remove(struct modlinkage *);
 662 extern int      mod_info(struct modlinkage *, struct modinfo *);
 663
 664 #else   /* _KERNEL */
 665
 666 extern int modctl(int, ...);
 667
 668 #endif  /* _KERNEL */
 669
 670 /*
 671  * bit definitions for moddebug.
 672  */
 673 #define MODDEBUG_LOADMSG        0x80000000      /* print "[un]loading..." msg */
 674 #define MODDEBUG_ERRMSG         0x40000000      /* print detailed error msgs */
 675 #define MODDEBUG_LOADMSG2       0x20000000      /* print 2nd level msgs */
 676 #define MODDEBUG_RETIRE         0x10000000      /* print retire msgs */
 677 #define MODDEBUG_BINDING        0x00040000      /* driver/alias binding */
 678 #define MODDEBUG_FINI_EBUSY     0x00020000      /* pretend fini returns EBUSY */
 679 #define MODDEBUG_NOAUL_IPP      0x00010000      /* no Autounloading ipp mods */
 680 #define MODDEBUG_NOAUL_DACF     0x00008000      /* no Autounloading dacf mods */
 681 #define MODDEBUG_KEEPTEXT       0x00004000      /* keep text after unloading */
 682 #define MODDEBUG_NOAUL_DRV      0x00001000      /* no Autounloading Drivers */
 683 #define MODDEBUG_NOAUL_EXEC     0x00000800      /* no Autounloading Execs */
 684 #define MODDEBUG_NOAUL_FS       0x00000400      /* no Autounloading File sys */
 685 #define MODDEBUG_NOAUL_MISC     0x00000200      /* no Autounloading misc */
 686 #define MODDEBUG_NOAUL_SCHED    0x00000100      /* no Autounloading scheds */
 687 #define MODDEBUG_NOAUL_STR      0x00000080      /* no Autounloading streams */
 688 #define MODDEBUG_NOAUL_SYS      0x00000040      /* no Autounloading syscalls */
 689 #define MODDEBUG_NOCTF          0x00000020      /* do not load CTF debug data */
 690 #define MODDEBUG_NOAUTOUNLOAD   0x00000010      /* no autounloading at all */
 691 #define MODDEBUG_DDI_MOD        0x00000008      /* ddi_mod{open,sym,close} */
 692 #define MODDEBUG_MP_MATCH       0x00000004      /* dev_minorperm */
 693 #define MODDEBUG_MINORPERM      0x00000002      /* minor perm modctls */
 694 #define MODDEBUG_USERDEBUG      0x00000001      /* bpt after init_module() */
 695
 696 #ifdef  __cplusplus
 697 }
 698 #endif
 699
 700 #endif  /* _SYS_MODCTL_H */