Leon,
This code is for kernel modules that need to use
sys_call_table on kernels that is no longer exported.
If you follow this instructions you won't need to
recompile the kernel!!.
All you have to do is to modify your module adding:
....
#include <linux/syscall.h>
#include <asm/unistd.h>
static void **sys_call_table;
extern void *system_utsname;
removing if exists:
extern void *sys_call_table[];
then add a new function:
static int locate_sys_call_table(void) {
unsigned long *begin;
int i;
begin=(unsigned long *) &system_utsname;
for (i=0;i<1024;i++) {
if (*(begin+i)==(unsigned long)
sys_socketcall) {
sys_call_table=(void *)
(begin+i-__NR_socketcall);
if (sys_call_table[__NR_exit]==(void *)
sys_exit) {
printk("success: located
sys_call_table: %X\n",(unsigned
int) sys_call_table);
return(1);
}
}
}
return(0);
}
and at the begin of the init function of the module:
if (!locate_sys_call_table()) return (-1);
That's all.
I hope this will solve your problems assuming that the
best way is patching the kernel, of course.
bye.
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