static int
get80211priv(const char *ifname, int op, void *data, size_t len)
{
struct iwreq iwr;
if (do80211priv(&iwr, ifname, op, data, len) < 0)
return -1;
if (len < IFNAMSIZ)
memcpy(data, iwr.u.name, len);
return iwr.u.data.length;
}
static struct wifi_channels *list_channelsext(const char *ifname, int allchans)
{
struct ieee80211req_chaninfo chans;
struct ieee80211req_chaninfo achans;
const struct ieee80211_channel *c;
int i;
fprintf(stderr, "list channels for %s\n", ifname);
if (do80211priv
(ifname, IEEE80211_IOCTL_GETCHANINFO, &chans, sizeof(chans)) < 0) {
fprintf(stderr, "unable to get channel information\n");
return NULL;
}
if (!allchans) {
uint8_t active[64];
if (do80211priv
(ifname, IEEE80211_IOCTL_GETCHANLIST, &active,
sizeof(active)) < 0) {
fprintf(stderr, "unable to get active channel list\n");
return NULL;
}
memset(&achans, 0, sizeof(achans));
for (i = 0; i < chans.ic_nchans; i++) {
c = &chans.ic_chans[i];
if (isset(active, c->ic_ieee) || allchans)
achans.ic_chans[achans.ic_nchans++] = *c;
}
} else
achans = chans;
struct wifi_channels *list =
(struct wifi_channels *)safe_malloc(sizeof(struct wifi_channels) *
(achans.ic_nchans + 1));
(void)memset(list, 0, (sizeof(struct wifi_channels)*((achans.ic_nchans + 1))));
char wl_mode[16];
char wl_turbo[16];
sprintf(wl_mode, "%s_net_mode", ifname);
sprintf(wl_turbo, "%s_channelbw", ifname);
int l = 0;
int up = 0;
char sb[32];
sprintf(sb, "%s_nctrlsb", ifname);
if (nvram_match(sb, "upper"))
up = 1;
for (i = 0; i < achans.ic_nchans; i++) {
#ifdef HAVE_BUFFALO
if (achans.ic_chans[i].ic_flags & IEEE80211_CHAN_RADARFOUND) //filter channels with detected radar
continue;
#endif
// filter out A channels if mode isnt A-Only or mixed
if (IEEE80211_IS_CHAN_5GHZ(&achans.ic_chans[i])) {
if (nvram_invmatch(wl_mode, "a-only")
&& nvram_invmatch(wl_mode, "mixed")
&& nvram_invmatch(wl_mode, "n5-only")
&& nvram_invmatch(wl_mode, "na-only")) {
// fprintf(stderr,"5 Ghz %d is not compatible to a-only/mixed/na-only %X\n",achans.ic_chans[i].ic_freq,achans.ic_chans[i].ic_flags);
continue;
}
if (nvram_match(wl_turbo, "40")
&& (nvram_match(wl_mode, "n5-only")
|| nvram_match(wl_mode, "mixed")
|| nvram_match(wl_mode, "na-only"))) {
if (up
&&
!IEEE80211_IS_CHAN_11NA_HT40PLUS
(&achans.ic_chans[i]))
continue;
if (!up
&&
!IEEE80211_IS_CHAN_11NA_HT40MINUS
(&achans.ic_chans[i]))
continue;
}
}
// filter out B/G channels if mode isnt g-only, b-only or mixed
if (IEEE80211_IS_CHAN_2GHZ(&achans.ic_chans[i])) {
if (nvram_invmatch(wl_mode, "g-only")
&& nvram_invmatch(wl_mode, "mixed")
&& nvram_invmatch(wl_mode, "b-only")
&& nvram_invmatch(wl_mode, "n2-only")
&& nvram_invmatch(wl_mode, "bg-mixed")
&& nvram_invmatch(wl_mode, "ng-only")) {
fprintf(stderr, "%s:%d\n", __func__, __LINE__);
continue;
}
#ifdef HAVE_BUFFALO_SA
if(nvram_default_match("region", "SA", "")
&& (!strcmp(getUEnv("region"), "AP") || !strcmp(getUEnv("region"), "US"))
&& achans.ic_chans[i].ic_ieee > 11 && achans.ic_chans[i].ic_ieee <= 14)
continue;
#endif
if (nvram_match(wl_turbo, "40")
&& (nvram_match(wl_mode, "n2-only")
|| nvram_match(wl_mode, "mixed")
|| nvram_match(wl_mode, "ng-only"))) {
if (up
&&
!IEEE80211_IS_CHAN_11NG_HT40PLUS
(&achans.ic_chans[i])) {
fprintf(stderr, "%s:%d\n", __func__,
__LINE__);
continue;
}
if (!up
&&
!IEEE80211_IS_CHAN_11NG_HT40MINUS
(&achans.ic_chans[i])) {
fprintf(stderr, "%s:%d\n", __func__,
__LINE__);
continue;
}
}
}
list[l].channel = achans.ic_chans[i].ic_ieee;
list[l].freq = achans.ic_chans[i].ic_freq;
list[l].noise = -95; // achans.ic_chans[i].ic_noise;
l++;
}
list[l].freq = -1;
return list;
}
int site_survey_main(int argc, char *argv[])
{
char *name = nvram_safe_get("wl0_ifname");
unsigned char mac[20];
int i = 0;
char *dev = name;
unlink(SITE_SURVEY_DB);
int ap = 0, oldap = 0;
unsigned char buf[24 * 1024];
char ssid[31];
unsigned char *cp;
int len;
system2("airoscan-ng wifi0");
len =
do80211priv("ath0", IEEE80211_IOCTL_SCAN_RESULTS, buf, sizeof(buf));
if (len == -1)
fprintf(stderr, "unable to get scan results");
if (len < sizeof(struct ieee80211req_scan_result))
return;
cp = buf;
do {
struct ieee80211req_scan_result *sr;
unsigned char *vp;
char ssid[14];
sr = (struct ieee80211req_scan_result *)cp;
vp = (u_int8_t *)(sr + 1);
memset(ssid, 0, sizeof(ssid));
strncpy(site_survey_lists[i].SSID, vp, sr->isr_ssid_len);
strcpy(site_survey_lists[i].BSSID,
ieee80211_ntoa(sr->isr_bssid));
site_survey_lists[i].channel = ieee80211_mhz2ieee(sr->isr_freq);
site_survey_lists[i].frequency = sr->isr_freq;
int noise = 256;
noise -= (int)sr->isr_noise;
site_survey_lists[i].phy_noise = -noise;
site_survey_lists[i].RSSI =
(int)site_survey_lists[i].phy_noise + (int)sr->isr_rssi;
site_survey_lists[i].capability = sr->isr_capinfo;
site_survey_lists[i].rate_count = sr->isr_nrates;
cp += sr->isr_len, len -= sr->isr_len;
i++;
}
while (len >= sizeof(struct ieee80211req_scan_result));
write_site_survey();
open_site_survey();
for (i = 0; i < SITE_SURVEY_NUM && site_survey_lists[i].BSSID[0]
&& site_survey_lists[i].channel != 0; i++) {
fprintf(stderr,
"[%2d] SSID[%20s] BSSID[%s] channel[%2d] frequency[%4d] rssi[%d] noise[%d] beacon[%d] cap[%x] dtim[%d] rate[%d]\n",
i, site_survey_lists[i].SSID,
site_survey_lists[i].BSSID,
site_survey_lists[i].channel,
site_survey_lists[i].frequency,
site_survey_lists[i].RSSI,
site_survey_lists[i].phy_noise,
site_survey_lists[i].beacon_period,
site_survey_lists[i].capability,
site_survey_lists[i].dtim_period,
site_survey_lists[i].rate_count);
}
return 0;
}