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/*
* Dynamic loading of modules into the kernel.
*
* Modified by Bjorn Ekwall <bj0rn@blox.se>
*/
#ifndef _LINUX_MODULE_H
#define _LINUX_MODULE_H
/* values of module.state */
#define MOD_UNINITIALIZED 0
#define MOD_RUNNING 1
#define MOD_DELETED 2
/* maximum length of module name */
#define MOD_MAX_NAME 64
/* maximum length of symbol name */
#define SYM_MAX_NAME 60
struct kernel_sym { /* sent to "insmod" */
unsigned long value; /* value of symbol */
char name[SYM_MAX_NAME]; /* name of symbol */
};
struct module_ref {
struct module *module;
struct module_ref *next;
};
struct internal_symbol {
void *addr;
char *name;
};
struct symbol_table { /* received from "insmod" */
int size; /* total, including string table!!! */
int n_symbols;
int n_refs;
struct internal_symbol symbol[0]; /* actual size defined by n_symbols */
struct module_ref ref[0]; /* actual size defined by n_refs */
};
/*
* Note: The string table follows immediately after the symbol table in memory!
*/
struct module {
struct module *next;
struct module_ref *ref; /* the list of modules that refer to me */
struct symbol_table *symtab;
char *name;
int size; /* size of module in pages */
void* addr; /* address of module */
int state;
void (*cleanup)(void); /* cleanup routine */
};
struct mod_routines {
int (*init)(void); /* initialization routine */
void (*cleanup)(void); /* cleanup routine */
};
/* rename_module_symbol(old_name, new_name) WOW! */
extern int rename_module_symbol(char *, char *);
/*
* The first word of the module contains the use count.
*/
#define GET_USE_COUNT(module) (* (int *) (module)->addr)
/*
* define the count variable, and usage macros.
*/
extern int mod_use_count_;
#define MOD_INC_USE_COUNT mod_use_count_++
#define MOD_DEC_USE_COUNT mod_use_count_--
#define MOD_IN_USE (mod_use_count_ != 0)
#endif
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