void iwinfo_finish(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(backends); i++)
backends[i]->close();
iwinfo_close();
}
void iwinfo_finish(void)
{
#ifdef USE_WL
wl_close();
#endif
#ifdef USE_MADWIFI
madwifi_close();
#endif
#ifdef USE_NL80211
nl80211_close();
#endif
wext_close();
iwinfo_close();
}
/* Shutdown backends */
static int iwinfo_L__gc(lua_State *L)
{
#ifdef USE_WL
wl_close();
#endif
#ifdef USE_MADWIFI
madwifi_close();
#endif
#ifdef USE_NL80211
nl80211_close();
#endif
wext_close();
iwinfo_close();
}
static int run_daemon(void)
{
FILE *info;
uint32_t rxb, txb, rxp, txp;
uint32_t udp, tcp, other;
uint16_t rate;
uint8_t rssi, noise;
float lf1, lf5, lf15;
char line[1024];
char ifname[16];
int i;
void *iw;
struct sigaction sa;
struct stat s;
const char *ipc = stat("/proc/net/nf_conntrack", &s)
? "/proc/net/ip_conntrack" : "/proc/net/nf_conntrack";
switch (fork())
{
case -1:
perror("fork()");
return -1;
case 0:
if (chdir("/") < 0)
{
perror("chdir()");
exit(1);
}
close(0);
close(1);
close(2);
break;
default:
return 0;
}
/* setup USR1 signal handler to reset timer */
sa.sa_handler = reset_countdown;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
sigaction(SIGUSR1, &sa, NULL);
/* write pid */
if (writepid())
{
fprintf(stderr, "Failed to write pid file: %s\n", strerror(errno));
return 1;
}
/* initialize iwinfo */
iw = iwinfo_open();
/* go */
for (reset_countdown(0); countdown >= 0; countdown--)
{
/* alter progname for ps, top */
memset(progname, 0, prognamelen);
snprintf(progname, prognamelen, "luci-bwc %d", countdown);
if ((info = fopen("/proc/net/dev", "r")) != NULL)
{
while (fgets(line, sizeof(line), info))
{
if (strchr(line, '|'))
continue;
if (sscanf(line, IF_SCAN_PATTERN, ifname, &rxb, &rxp, &txb, &txp))
{
if (strncmp(ifname, "lo", sizeof(ifname)))
update_ifstat(ifname, rxb, rxp, txb, txp);
}
}
fclose(info);
}
if (iw)
{
for (i = 0; i < 5; i++)
{
#define iwinfo_checkif(pattern) \
do { \
snprintf(ifname, sizeof(ifname), pattern, i); \
if (iwinfo_update(iw, ifname, &rate, &rssi, &noise)) \
{ \
update_radiostat(ifname, rate, rssi, noise); \
continue; \
} \
} while(0)
iwinfo_checkif("wlan%d");
iwinfo_checkif("ath%d");
iwinfo_checkif("wl%d");
}
}
if ((info = fopen(ipc, "r")) != NULL)
{
udp = 0;
tcp = 0;
other = 0;
while (fgets(line, sizeof(line), info))
{
if (strstr(line, "TIME_WAIT"))
continue;
if (sscanf(line, "%*s %*d %s", ifname) || sscanf(line, "%s %*d", ifname))
{
if (!strcmp(ifname, "tcp"))
tcp++;
else if (!strcmp(ifname, "udp"))
udp++;
else
other++;
}
}
update_cnstat(udp, tcp, other);
fclose(info);
}
if ((info = fopen("/proc/loadavg", "r")) != NULL)
{
if (fscanf(info, LD_SCAN_PATTERN, &lf1, &lf5, &lf15))
{
update_ldstat((uint16_t)(lf1 * 100),
(uint16_t)(lf5 * 100),
(uint16_t)(lf15 * 100));
}
fclose(info);
}
sleep(STEP_TIME);
}
unlink(PID_PATH);
if (iw)
iwinfo_close(iw);
return 0;
}
