kernel/params.c

   1 /* Helpers for initial module or kernel cmdline parsing
   2    Copyright (C) 2001 Rusty Russell.
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17 */
  18 #include <linux/moduleparam.h>
  19 #include <linux/kernel.h>
  20 #include <linux/string.h>
  21 #include <linux/errno.h>
  22 #include <linux/module.h>
  23 #include <linux/device.h>
  24 #include <linux/err.h>
  25 #include <linux/slab.h>
  26
  27 #if 0
  28 #define DEBUGP printk
  29 #else
  30 #define DEBUGP(fmt, a...)
  31 #endif
  32
  33 static struct kobj_type module_ktype;
  34
  35 static inline char dash2underscore(char c)
  36 {
  37         if (c == '-')
  38                 return '_';
  39         return c;
  40 }
  41
  42 static inline int parameq(const char *input, const char *paramname)
  43 {
  44         unsigned int i;
  45         for (i = 0; dash2underscore(input[i]) == paramname[i]; i++)
  46                 if (input[i] == '\0')
  47                         return 1;
  48         return 0;
  49 }
  50
  51 static int parse_one(char *param,
  52                      char *val,
  53                      struct kernel_param *params,
  54                      unsigned num_params,
  55                      int (*handle_unknown)(char *param, char *val))
  56 {
  57         unsigned int i;
  58
  59         /* Find parameter */
  60         for (i = 0; i < num_params; i++) {
  61                 if (parameq(param, params[i].name)) {
  62                         DEBUGP("They are equal!  Calling %p\n",
  63                                params[i].set);
  64                         return params[i].set(val, &params[i]);
  65                 }
  66         }
  67
  68         if (handle_unknown) {
  69                 DEBUGP("Unknown argument: calling %p\n", handle_unknown);
  70                 return handle_unknown(param, val);
  71         }
  72
  73         DEBUGP("Unknown argument `%s'\n", param);
  74         return -ENOENT;
  75 }
  76
  77 /* You can use " around spaces, but can't escape ". */
  78 /* Hyphens and underscores equivalent in parameter names. */
  79 static char *next_arg(char *args, char **param, char **val)
  80 {
  81         unsigned int i, equals = 0;
  82         int in_quote = 0, quoted = 0;
  83         char *next;
  84
  85         if (*args == '"') {
  86                 args++;
  87                 in_quote = 1;
  88                 quoted = 1;
  89         }
  90
  91         for (i = 0; args[i]; i++) {
  92                 if (args[i] == ' ' && !in_quote)
  93                         break;
  94                 if (equals == 0) {
  95                         if (args[i] == '=')
  96                                 equals = i;
  97                 }
  98                 if (args[i] == '"')
  99                         in_quote = !in_quote;
 100         }
 101
 102         *param = args;
 103         if (!equals)
 104                 *val = NULL;
 105         else {
 106                 args[equals] = '\0';
 107                 *val = args + equals + 1;
 108
 109                 /* Don't include quotes in value. */
 110                 if (**val == '"') {
 111                         (*val)++;
 112                         if (args[i-1] == '"')
 113                                 args[i-1] = '\0';
 114                 }
 115                 if (quoted && args[i-1] == '"')
 116                         args[i-1] = '\0';
 117         }
 118
 119         if (args[i]) {
 120                 args[i] = '\0';
 121                 next = args + i + 1;
 122         } else
 123                 next = args + i;
 124
 125         /* Chew up trailing spaces. */
 126         while (*next == ' ')
 127                 next++;
 128         return next;
 129 }
 130
 131 /* Args looks like "foo=bar,bar2 baz=fuz wiz". */
 132 int parse_args(const char *name,
 133                char *args,
 134                struct kernel_param *params,
 135                unsigned num,
 136                int (*unknown)(char *param, char *val))
 137 {
 138         char *param, *val;
 139
 140         DEBUGP("Parsing ARGS: %s\n", args);
 141
 142         /* Chew leading spaces */
 143         while (*args == ' ')
 144                 args++;
 145
 146         while (*args) {
 147                 int ret;
 148                 int irq_was_disabled;
 149
 150                 args = next_arg(args, &param, &val);
 151                 irq_was_disabled = irqs_disabled();
 152                 ret = parse_one(param, val, params, num, unknown);
 153                 if (irq_was_disabled && !irqs_disabled()) {
 154                         printk(KERN_WARNING "parse_args(): option '%s' enabled "
 155                                         "irq's!\n", param);
 156                 }
 157                 switch (ret) {
 158                 case -ENOENT:
 159                         printk(KERN_ERR "%s: Unknown parameter `%s'\n",
 160                                name, param);
 161                         return ret;
 162                 case -ENOSPC:
 163                         printk(KERN_ERR
 164                                "%s: `%s' too large for parameter `%s'\n",
 165                                name, val ?: "", param);
 166                         return ret;
 167                 case 0:
 168                         break;
 169                 default:
 170                         printk(KERN_ERR
 171                                "%s: `%s' invalid for parameter `%s'\n",
 172                                name, val ?: "", param);
 173                         return ret;
 174                 }
 175         }
 176
 177         /* All parsed OK. */
 178         return 0;
 179 }
 180
 181 /* Lazy bastard, eh? */
 182 #define STANDARD_PARAM_DEF(name, type, format, tmptype, strtolfn)       \
 183         int param_set_##name(const char *val, struct kernel_param *kp)  \
 184         {                                                               \
 185                 char *endp;                                             \
 186                 tmptype l;                                              \
 187                                                                         \
 188                 if (!val) return -EINVAL;                               \
 189                 l = strtolfn(val, &endp, 0);                            \
 190                 if (endp == val || ((type)l != l))                      \
 191                         return -EINVAL;                                 \
 192                 *((type *)kp->arg) = l;                                 \
 193                 return 0;                                               \
 194         }                                                               \
 195         int param_get_##name(char *buffer, struct kernel_param *kp)     \
 196         {                                                               \
 197                 return sprintf(buffer, format, *((type *)kp->arg));     \
 198         }
 199
 200 STANDARD_PARAM_DEF(byte, unsigned char, "%c", unsigned long, simple_strtoul);
 201 STANDARD_PARAM_DEF(short, short, "%hi", long, simple_strtol);
 202 STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", unsigned long, simple_strtoul);
 203 STANDARD_PARAM_DEF(int, int, "%i", long, simple_strtol);
 204 STANDARD_PARAM_DEF(uint, unsigned int, "%u", unsigned long, simple_strtoul);
 205 STANDARD_PARAM_DEF(long, long, "%li", long, simple_strtol);
 206 STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, simple_strtoul);
 207
 208 int param_set_charp(const char *val, struct kernel_param *kp)
 209 {
 210         if (!val) {
 211                 printk(KERN_ERR "%s: string parameter expected\n",
 212                        kp->name);
 213                 return -EINVAL;
 214         }
 215
 216         if (strlen(val) > 1024) {
 217                 printk(KERN_ERR "%s: string parameter too long\n",
 218                        kp->name);
 219                 return -ENOSPC;
 220         }
 221
 222         *(char **)kp->arg = (char *)val;
 223         return 0;
 224 }
 225
 226 int param_get_charp(char *buffer, struct kernel_param *kp)
 227 {
 228         return sprintf(buffer, "%s", *((char **)kp->arg));
 229 }
 230
 231 int param_set_bool(const char *val, struct kernel_param *kp)
 232 {
 233         /* No equals means "set"... */
 234         if (!val) val = "1";
 235
 236         /* One of =[yYnN01] */
 237         switch (val[0]) {
 238         case 'y': case 'Y': case '1':
 239                 *(int *)kp->arg = 1;
 240                 return 0;
 241         case 'n': case 'N': case '0':
 242                 *(int *)kp->arg = 0;
 243                 return 0;
 244         }
 245         return -EINVAL;
 246 }
 247
 248 int param_get_bool(char *buffer, struct kernel_param *kp)
 249 {
 250         /* Y and N chosen as being relatively non-coder friendly */
 251         return sprintf(buffer, "%c", (*(int *)kp->arg) ? 'Y' : 'N');
 252 }
 253
 254 int param_set_invbool(const char *val, struct kernel_param *kp)
 255 {
 256         int boolval, ret;
 257         struct kernel_param dummy = { .arg = &boolval };
 258
 259         ret = param_set_bool(val, &dummy);
 260         if (ret == 0)
 261                 *(int *)kp->arg = !boolval;
 262         return ret;
 263 }
 264
 265 int param_get_invbool(char *buffer, struct kernel_param *kp)
 266 {
 267         int val;
 268         struct kernel_param dummy = { .arg = &val };
 269
 270         val = !*(int *)kp->arg;
 271         return param_get_bool(buffer, &dummy);
 272 }
 273
 274 /* We cheat here and temporarily mangle the string. */
 275 static int param_array(const char *name,
 276                        const char *val,
 277                        unsigned int min, unsigned int max,
 278                        void *elem, int elemsize,
 279                        int (*set)(const char *, struct kernel_param *kp),
 280                        int *num)
 281 {
 282         int ret;
 283         struct kernel_param kp;
 284         char save;
 285
 286         /* Get the name right for errors. */
 287         kp.name = name;
 288         kp.arg = elem;
 289
 290         /* No equals sign? */
 291         if (!val) {
 292                 printk(KERN_ERR "%s: expects arguments\n", name);
 293                 return -EINVAL;
 294         }
 295
 296         *num = 0;
 297         /* We expect a comma-separated list of values. */
 298         do {
 299                 int len;
 300
 301                 if (*num == max) {
 302                         printk(KERN_ERR "%s: can only take %i arguments\n",
 303                                name, max);
 304                         return -EINVAL;
 305                 }
 306                 len = strcspn(val, ",");
 307
 308                 /* nul-terminate and parse */
 309                 save = val[len];
 310                 ((char *)val)[len] = '\0';
 311                 ret = set(val, &kp);
 312
 313                 if (ret != 0)
 314                         return ret;
 315                 kp.arg += elemsize;
 316                 val += len+1;
 317                 (*num)++;
 318         } while (save == ',');
 319
 320         if (*num < min) {
 321                 printk(KERN_ERR "%s: needs at least %i arguments\n",
 322                        name, min);
 323                 return -EINVAL;
 324         }
 325         return 0;
 326 }
 327
 328 int param_array_set(const char *val, struct kernel_param *kp)
 329 {
 330         struct kparam_array *arr = kp->arg;
 331         unsigned int temp_num;
 332
 333         return param_array(kp->name, val, 1, arr->max, arr->elem,
 334                            arr->elemsize, arr->set, arr->num ?: &temp_num);
 335 }
 336
 337 int param_array_get(char *buffer, struct kernel_param *kp)
 338 {
 339         int i, off, ret;
 340         struct kparam_array *arr = kp->arg;
 341         struct kernel_param p;
 342
 343         p = *kp;
 344         for (i = off = 0; i < (arr->num ? *arr->num : arr->max); i++) {
 345                 if (i)
 346                         buffer[off++] = ',';
 347                 p.arg = arr->elem + arr->elemsize * i;
 348                 ret = arr->get(buffer + off, &p);
 349                 if (ret < 0)
 350                         return ret;
 351                 off += ret;
 352         }
 353         buffer[off] = '\0';
 354         return off;
 355 }
 356
 357 int param_set_copystring(const char *val, struct kernel_param *kp)
 358 {
 359         struct kparam_string *kps = kp->arg;
 360
 361         if (strlen(val)+1 > kps->maxlen) {
 362                 printk(KERN_ERR "%s: string doesn't fit in %u chars.\n",
 363                        kp->name, kps->maxlen-1);
 364                 return -ENOSPC;
 365         }
 366         strcpy(kps->string, val);
 367         return 0;
 368 }
 369
 370 int param_get_string(char *buffer, struct kernel_param *kp)
 371 {
 372         struct kparam_string *kps = kp->arg;
 373         return strlcpy(buffer, kps->string, kps->maxlen);
 374 }
 375
 376 /* sysfs output in /sys/modules/XYZ/parameters/ */
 377
 378 extern struct kernel_param __start___param[], __stop___param[];
 379
 380 #define MAX_KBUILD_MODNAME KOBJ_NAME_LEN
 381
 382 struct param_attribute
 383 {
 384         struct module_attribute mattr;
 385         struct kernel_param *param;
 386 };
 387
 388 struct module_param_attrs
 389 {
 390         struct attribute_group grp;
 391         struct param_attribute attrs[0];
 392 };
 393
 394 #define to_param_attr(n) container_of(n, struct param_attribute, mattr);
 395
 396 static ssize_t param_attr_show(struct module_attribute *mattr,
 397                                struct module *mod, char *buf)
 398 {
 399         int count;
 400         struct param_attribute *attribute = to_param_attr(mattr);
 401
 402         if (!attribute->param->get)
 403                 return -EPERM;
 404
 405         count = attribute->param->get(buf, attribute->param);
 406         if (count > 0) {
 407                 strcat(buf, "\n");
 408                 ++count;
 409         }
 410         return count;
 411 }
 412
 413 /* sysfs always hands a nul-terminated string in buf.  We rely on that. */
 414 static ssize_t param_attr_store(struct module_attribute *mattr,
 415                                 struct module *owner,
 416                                 const char *buf, size_t len)
 417 {
 418         int err;
 419         struct param_attribute *attribute = to_param_attr(mattr);
 420
 421         if (!attribute->param->set)
 422                 return -EPERM;
 423
 424         err = attribute->param->set(buf, attribute->param);
 425         if (!err)
 426                 return len;
 427         return err;
 428 }
 429
 430 #ifdef CONFIG_MODULES
 431 #define __modinit
 432 #else
 433 #define __modinit __init
 434 #endif
 435
 436 /*
 437  * param_sysfs_setup - setup sysfs support for one module or KBUILD_MODNAME
 438  * @mk: struct module_kobject (contains parent kobject)
 439  * @kparam: array of struct kernel_param, the actual parameter definitions
 440  * @num_params: number of entries in array
 441  * @name_skip: offset where the parameter name start in kparam[].name. Needed for built-in "modules"
 442  *
 443  * Create a kobject for a (per-module) group of parameters, and create files
 444  * in sysfs. A pointer to the param_kobject is returned on success,
 445  * NULL if there's no parameter to export, or other ERR_PTR(err).
 446  */
 447 static __modinit struct module_param_attrs *
 448 param_sysfs_setup(struct module_kobject *mk,
 449                   struct kernel_param *kparam,
 450                   unsigned int num_params,
 451                   unsigned int name_skip)
 452 {
 453         struct module_param_attrs *mp;
 454         unsigned int valid_attrs = 0;
 455         unsigned int i, size[2];
 456         struct param_attribute *pattr;
 457         struct attribute **gattr;
 458         int err;
 459
 460         for (i=0; i<num_params; i++) {
 461                 if (kparam[i].perm)
 462                         valid_attrs++;
 463         }
 464
 465         if (!valid_attrs)
 466                 return NULL;
 467
 468         size[0] = ALIGN(sizeof(*mp) +
 469                         valid_attrs * sizeof(mp->attrs[0]),
 470                         sizeof(mp->grp.attrs[0]));
 471         size[1] = (valid_attrs + 1) * sizeof(mp->grp.attrs[0]);
 472
 473         mp = kmalloc(size[0] + size[1], GFP_KERNEL);
 474         if (!mp)
 475                 return ERR_PTR(-ENOMEM);
 476
 477         mp->grp.name = "parameters";
 478         mp->grp.attrs = (void *)mp + size[0];
 479
 480         pattr = &mp->attrs[0];
 481         gattr = &mp->grp.attrs[0];
 482         for (i = 0; i < num_params; i++) {
 483                 struct kernel_param *kp = &kparam[i];
 484                 if (kp->perm) {
 485                         pattr->param = kp;
 486                         pattr->mattr.show = param_attr_show;
 487                         pattr->mattr.store = param_attr_store;
 488                         pattr->mattr.attr.name = (char *)&kp->name[name_skip];
 489                         pattr->mattr.attr.owner = mk->mod;
 490                         pattr->mattr.attr.mode = kp->perm;
 491                         *(gattr++) = &(pattr++)->mattr.attr;
 492                 }
 493         }
 494         *gattr = NULL;
 495
 496         if ((err = sysfs_create_group(&mk->kobj, &mp->grp))) {
 497                 kfree(mp);
 498                 return ERR_PTR(err);
 499         }
 500         return mp;
 501 }
 502
 503
 504 #ifdef CONFIG_MODULES
 505
 506 /*
 507  * module_param_sysfs_setup - setup sysfs support for one module
 508  * @mod: module
 509  * @kparam: module parameters (array)
 510  * @num_params: number of module parameters
 511  *
 512  * Adds sysfs entries for module parameters, and creates a link from
 513  * /sys/module/[mod->name]/parameters to /sys/parameters/[mod->name]/
 514  */
 515 int module_param_sysfs_setup(struct module *mod,
 516                              struct kernel_param *kparam,
 517                              unsigned int num_params)
 518 {
 519         struct module_param_attrs *mp;
 520
 521         mp = param_sysfs_setup(&mod->mkobj, kparam, num_params, 0);
 522         if (IS_ERR(mp))
 523                 return PTR_ERR(mp);
 524
 525         mod->param_attrs = mp;
 526         return 0;
 527 }
 528
 529 /*
 530  * module_param_sysfs_remove - remove sysfs support for one module
 531  * @mod: module
 532  *
 533  * Remove sysfs entries for module parameters and the corresponding
 534  * kobject.
 535  */
 536 void module_param_sysfs_remove(struct module *mod)
 537 {
 538         if (mod->param_attrs) {
 539                 sysfs_remove_group(&mod->mkobj.kobj,
 540                                    &mod->param_attrs->grp);
 541                 /* We are positive that no one is using any param
 542                  * attrs at this point.  Deallocate immediately. */
 543                 kfree(mod->param_attrs);
 544                 mod->param_attrs = NULL;
 545         }
 546 }
 547 #endif
 548
 549 /*
 550  * kernel_param_sysfs_setup - wrapper for built-in params support
 551  */
 552 static void __init kernel_param_sysfs_setup(const char *name,
 553                                             struct kernel_param *kparam,
 554                                             unsigned int num_params,
 555                                             unsigned int name_skip)
 556 {
 557         struct module_kobject *mk;
 558         int ret;
 559
 560         mk = kzalloc(sizeof(struct module_kobject), GFP_KERNEL);
 561         BUG_ON(!mk);
 562
 563         mk->mod = THIS_MODULE;
 564         kobj_set_kset_s(mk, module_subsys);
 565         kobject_set_name(&mk->kobj, name);
 566         kobject_init(&mk->kobj);
 567         ret = kobject_add(&mk->kobj);
 568         BUG_ON(ret < 0);
 569         param_sysfs_setup(mk, kparam, num_params, name_skip);
 570         kobject_uevent(&mk->kobj, KOBJ_ADD);
 571 }
 572
 573 /*
 574  * param_sysfs_builtin - add contents in /sys/parameters for built-in modules
 575  *
 576  * Add module_parameters to sysfs for "modules" built into the kernel.
 577  *
 578  * The "module" name (KBUILD_MODNAME) is stored before a dot, the
 579  * "parameter" name is stored behind a dot in kernel_param->name. So,
 580  * extract the "module" name for all built-in kernel_param-eters,
 581  * and for all who have the same, call kernel_param_sysfs_setup.
 582  */
 583 static void __init param_sysfs_builtin(void)
 584 {
 585         struct kernel_param *kp, *kp_begin = NULL;
 586         unsigned int i, name_len, count = 0;
 587         char modname[MAX_KBUILD_MODNAME + 1] = "";
 588
 589         for (i=0; i < __stop___param - __start___param; i++) {
 590                 char *dot;
 591
 592                 kp = &__start___param[i];
 593
 594                 /* We do not handle args without periods. */
 595                 dot = memchr(kp->name, '.', MAX_KBUILD_MODNAME);
 596                 if (!dot) {
 597                         DEBUGP("couldn't find period in %s\n", kp->name);
 598                         continue;
 599                 }
 600                 name_len = dot - kp->name;
 601
 602                 /* new kbuild_modname? */
 603                 if (strlen(modname) != name_len
 604                     || strncmp(modname, kp->name, name_len) != 0) {
 605                         /* add a new kobject for previous kernel_params. */
 606                         if (count)
 607                                 kernel_param_sysfs_setup(modname,
 608                                                          kp_begin,
 609                                                          count,
 610                                                          strlen(modname)+1);
 611
 612                         strncpy(modname, kp->name, name_len);
 613                         modname[name_len] = '\0';
 614                         count = 0;
 615                         kp_begin = kp;
 616                 }
 617                 count++;
 618         }
 619
 620         /* last kernel_params need to be registered as well */
 621         if (count)
 622                 kernel_param_sysfs_setup(modname, kp_begin, count,
 623                                          strlen(modname)+1);
 624 }
 625
 626
 627 /* module-related sysfs stuff */
 628 #ifdef CONFIG_SYSFS
 629
 630 #define to_module_attr(n) container_of(n, struct module_attribute, attr);
 631 #define to_module_kobject(n) container_of(n, struct module_kobject, kobj);
 632
 633 static ssize_t module_attr_show(struct kobject *kobj,
 634                                 struct attribute *attr,
 635                                 char *buf)
 636 {
 637         struct module_attribute *attribute;
 638         struct module_kobject *mk;
 639         int ret;
 640
 641         attribute = to_module_attr(attr);
 642         mk = to_module_kobject(kobj);
 643
 644         if (!attribute->show)
 645                 return -EIO;
 646
 647         ret = attribute->show(attribute, mk->mod, buf);
 648
 649         return ret;
 650 }
 651
 652 static ssize_t module_attr_store(struct kobject *kobj,
 653                                 struct attribute *attr,
 654                                 const char *buf, size_t len)
 655 {
 656         struct module_attribute *attribute;
 657         struct module_kobject *mk;
 658         int ret;
 659
 660         attribute = to_module_attr(attr);
 661         mk = to_module_kobject(kobj);
 662
 663         if (!attribute->store)
 664                 return -EIO;
 665
 666         ret = attribute->store(attribute, mk->mod, buf, len);
 667
 668         return ret;
 669 }
 670
 671 static struct sysfs_ops module_sysfs_ops = {
 672         .show = module_attr_show,
 673         .store = module_attr_store,
 674 };
 675
 676 static int uevent_filter(struct kset *kset, struct kobject *kobj)
 677 {
 678         struct kobj_type *ktype = get_ktype(kobj);
 679
 680         if (ktype == &module_ktype)
 681                 return 1;
 682         return 0;
 683 }
 684
 685 static struct kset_uevent_ops module_uevent_ops = {
 686         .filter = uevent_filter,
 687 };
 688
 689 #else
 690 static struct sysfs_ops module_sysfs_ops = {
 691         .show = NULL,
 692         .store = NULL,
 693 };
 694 #endif
 695
 696 static struct kobj_type module_ktype = {
 697         .sysfs_ops =    &module_sysfs_ops,
 698 };
 699
 700 decl_subsys(module, &module_ktype, &module_uevent_ops);
 701
 702 /*
 703  * param_sysfs_init - wrapper for built-in params support
 704  */
 705 static int __init param_sysfs_init(void)
 706 {
 707         int ret;
 708
 709         ret = subsystem_register(&module_subsys);
 710         if (ret < 0) {
 711                 printk(KERN_WARNING "%s (%d): subsystem_register error: %d\n",
 712                         __FILE__, __LINE__, ret);
 713                 return ret;
 714         }
 715
 716         param_sysfs_builtin();
 717
 718         return 0;
 719 }
 720 subsys_initcall(param_sysfs_init);
 721
 722 EXPORT_SYMBOL(param_set_byte);
 723 EXPORT_SYMBOL(param_get_byte);
 724 EXPORT_SYMBOL(param_set_short);
 725 EXPORT_SYMBOL(param_get_short);
 726 EXPORT_SYMBOL(param_set_ushort);
 727 EXPORT_SYMBOL(param_get_ushort);
 728 EXPORT_SYMBOL(param_set_int);
 729 EXPORT_SYMBOL(param_get_int);
 730 EXPORT_SYMBOL(param_set_uint);
 731 EXPORT_SYMBOL(param_get_uint);
 732 EXPORT_SYMBOL(param_set_long);
 733 EXPORT_SYMBOL(param_get_long);
 734 EXPORT_SYMBOL(param_set_ulong);
 735 EXPORT_SYMBOL(param_get_ulong);
 736 EXPORT_SYMBOL(param_set_charp);
 737 EXPORT_SYMBOL(param_get_charp);
 738 EXPORT_SYMBOL(param_set_bool);
 739 EXPORT_SYMBOL(param_get_bool);
 740 EXPORT_SYMBOL(param_set_invbool);
 741 EXPORT_SYMBOL(param_get_invbool);
 742 EXPORT_SYMBOL(param_array_set);
 743 EXPORT_SYMBOL(param_array_get);
 744 EXPORT_SYMBOL(param_set_copystring);
 745 EXPORT_SYMBOL(param_get_string);