void enter_rfmon_mac80211(const char *device, char **mondev)
{
int ret;
short flags;
uint32_t n;
char phydev_path[256];
struct nl80211_state nlstate;
/* XXX: is this already a monN device? */
get_mac80211_phydev(device, phydev_path, sizeof(phydev_path));
nl80211_init(&nlstate, device);
for (n = 0; n < UINT_MAX; n++) {
char mondevice[32];
slprintf(mondevice, sizeof(mondevice), "mon%u", n);
ret = nl80211_add_mon_if(&nlstate, device, mondevice);
if (ret == 0) {
*mondev = xstrdup(mondevice);
flags = device_get_flags(*mondev);
flags |= IFF_UP | IFF_RUNNING;
device_set_flags(*mondev, flags);
nl80211_cleanup(&nlstate);
return;
}
}
panic("No free monN interfaces!\n");
}
void leave_rfmon_mac80211(const char *device, const char *mondev)
{
short flags;
struct nl80211_state nlstate;
flags = device_get_flags(mondev);
flags &= ~(IFF_UP | IFF_RUNNING);
device_set_flags(mondev, flags);
nl80211_init(&nlstate, device);
nl80211_del_mon_if(&nlstate, device, mondev);
nl80211_cleanup(&nlstate);
}
int set_wifi_power_saving(const char *iface, int state)
{
struct nl80211_state nlstate;
int err;
err = nl80211_init(&nlstate);
if (err)
return 1;
enable_power_save = state;
err = __handle_cmd(&nlstate, iface, 0);
nl80211_cleanup(&nlstate);
return err;
}
int get_wifi_power_saving(const char *iface)
{
struct nl80211_state nlstate;
int err;
enable_power_save = 0;
err = nl80211_init(&nlstate);
if (err)
return 1;
err = __handle_cmd(&nlstate, iface, 1);
nl80211_cleanup(&nlstate);
if (err) /* not a wifi interface */
return 1;
return enable_power_save;
}
int main(int argc, char **argv)
{
struct nl80211_state nlstate;
int devidx = 0;
char *devname;
int err;
unsigned int surveys = 10;
/* strip off self */
argc--;
argv0 = *argv++;
if (argc > 0 && strcmp(*argv, "--debug") == 0) {
nl_debug = 1;
argc--;
argv++;
}
if (argc > 0 && strcmp(*argv, "--version") == 0) {
version();
return 0;
}
/* need to treat "help" command specially so it works w/o nl80211 */
if (argc == 0 || strcmp(*argv, "help") == 0) {
usage();
return 0;
}
err = nl80211_init(&nlstate);
if (err)
return 1;
if (argc <= 0) {
return 1;
}
devidx = if_nametoindex(*argv);
if (devidx == 0)
devidx = -1;
devname = *argv;
argc--;
argv++;
if (devidx < 0)
return -errno;
if (!is_link_up(devname)) {
err = -ENOLINK;
printf("Link for %s must be up to use acs\n", devname);
goto nl_cleanup;
}
/*
* XXX: we should probably get channel list properly here
* but I'm lazy. THIS IS A REQUIREMENT, given that if a device
* is down and comes up we won't have any survey data to study.
*/
err = get_freq_list(&nlstate, devidx);
if (err)
return err;
while (surveys--) {
err = study_freqs(&nlstate, devidx);
if (err)
return err;
}
parse_freq_list();
parse_freq_int_factor();
nl_cleanup:
nl80211_cleanup(&nlstate);
clear_offchan_ops_list();
clean_freq_list();
return err;
}
