void regenerate(void)
{
if (no_files == TRUE) /* We don't regenerate sockets */
return;
/* we're about to exit. */
if (shm->spawn_no_more)
return;
shm->regenerating = TRUE;
sleep(1); /* give children time to finish with fds. */
shm->regenerate = 0;
output(0, "Regenerating random pages, fd's etc.\n");
regenerate_fds();
/* Do random setsockopts on all network sockets. */
do_sso_sockets();
destroy_maps();
setup_maps();
generate_random_page(page_rand);
shm->regenerating = FALSE;
}
static void dirty_first_page(struct map *map)
{
char *p = map->ptr;
mark_page_rw(map, map->ptr);
generate_random_page(p);
}
static unsigned long random_ioctl_arg(void)
{
if (RAND_BOOL()) {
return (unsigned long) rand64();
} else {
void *page;
page = get_writable_address(page_size);
generate_random_page(page);
return (unsigned long) page;
}
}
static void regenerate(void)
{
if (no_files == TRUE) /* We don't regenerate sockets */
return;
shm->regenerating = TRUE;
sleep(1); /* give children time to finish with fds. */
shm->regenerate = 0;
output(0, "[%d] Regenerating random pages, fd's etc.\n", getpid());
regenerate_fds();
destroy_maps();
setup_maps();
generate_random_page(page_rand);
shm->regenerating = FALSE;
}
static void init_buffers(void)
{
unsigned int i;
output(2, "shm is at %p\n", shm);
page_zeros = memalign(page_size, page_size * 2);
if (!page_zeros)
exit(EXIT_FAILURE);
memset(page_zeros, 0, page_size);
output(2, "page_zeros @ %p\n", page_zeros);
page_0xff = memalign(page_size, page_size * 2);
if (!page_0xff)
exit(EXIT_FAILURE);
memset(page_0xff, 0xff, page_size);
output(2, "page_0xff @ %p\n", page_0xff);
page_rand = memalign(page_size, page_size * 2);
if (!page_rand)
exit(EXIT_FAILURE);
memset(page_rand, 0x55, page_size); /* overwritten below */
output(2, "page_rand @ %p\n", page_rand);
page_allocs = memalign(page_size, page_size * 2);
if (!page_allocs)
exit(EXIT_FAILURE);
memset(page_allocs, 0xff, page_size);
output(2, "page_allocs @ %p\n", page_allocs);
for (i = 0; i < (page_size / sizeof(unsigned long *)); i++)
page_allocs[i] = (unsigned long) malloc(page_size);
setup_global_mappings();
// generate_random_page may end up using global_mappings, so has to be last.
generate_random_page(page_rand);
}
