/* Format one result on one text line into a buffer. */
static int wpa_supplicant_ctrl_iface_scan_result(
const struct wpa_scan_res *res, char *buf, size_t buflen)
{
char *pos, *end;
int ret;
const u8 *ie, *ie2;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t",
MAC2STR(res->bssid), res->freq, res->level);
if (ret < 0 || ret >= end - pos)
return -1;
pos += ret;
ie = wpa_scan_get_vendor_ie(res, WPA_IE_VENDOR_TYPE);
if (ie)
pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
ie2 = wpa_scan_get_ie(res, WLAN_EID_RSN);
if (ie2)
pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]);
pos = wpa_supplicant_wps_ie_txt(pos, end, res);
if (!ie && !ie2 && res->caps & IEEE80211_CAP_PRIVACY) {
ret = os_snprintf(pos, end - pos, "[WEP]");
if (ret < 0 || ret >= end - pos)
return -1;
pos += ret;
}
/* Just to make the fields line up nicely when printed */
if (!ie && !ie2) {
ret = os_snprintf(pos, end - pos, "\t");
if (ret < 0 || ret >= end - pos)
return -1;
pos += ret;
}
ie = wpa_scan_get_ie(res, WLAN_EID_SSID);
if (res->caps & IEEE80211_CAP_IBSS)
ret = os_snprintf(pos, end - pos, "\t%s%s", "(*)",
wpa_ssid_txt(ie + 2, ie[1]));
else
ret = os_snprintf(pos, end - pos, "\t%s",
ie ? wpa_ssid_txt(ie + 2, ie[1]) : "");
if (ret < 0 || ret >= end - pos)
return -1;
pos += ret;
ret = os_snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return -1;
pos += ret;
return pos - buf;
}
static int wpa_supplicant_ctrl_iface_scan_results(
struct wpa_supplicant *wpa_s, char *buf, size_t buflen)
{
char *pos, *end, *retpos;
struct wpa_scan_result *res;
int i, ret;
if (wpa_s->scan_results == NULL &&
wpa_supplicant_get_scan_results(wpa_s) < 0)
return 0;
if (wpa_s->scan_results == NULL)
return 0;
pos = buf;
end = buf + buflen;
ret = os_snprintf(pos, end - pos, "bssid / frequency / signal level / "
"flags / ssid\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
for (i = 0; i < wpa_s->num_scan_results; i++) {
retpos = pos;
res = &wpa_s->scan_results[i];
ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t",
MAC2STR(res->bssid), res->freq, res->level);
if (ret < 0 || ret >= end - pos)
return retpos - buf;
pos += ret;
if (res->wpa_ie_len) {
pos = wpa_supplicant_ie_txt(pos, end, "WPA",
res->wpa_ie,
res->wpa_ie_len);
}
if (res->rsn_ie_len) {
pos = wpa_supplicant_ie_txt(pos, end, "WPA2",
res->rsn_ie,
res->rsn_ie_len);
}
if (!res->wpa_ie_len && !res->rsn_ie_len &&
res->caps & IEEE80211_CAP_PRIVACY) {
ret = os_snprintf(pos, end - pos, "[WEP]");
if (ret < 0 || ret >= end - pos)
return retpos - buf;
pos += ret;
}
if (res->caps & IEEE80211_CAP_IBSS) {
ret = os_snprintf(pos, end - pos, "[IBSS]");
if (ret < 0 || ret >= end - pos)
return retpos - buf;
pos += ret;
}
if (!res->wpa_ie_len && !res->rsn_ie_len) {
ret = os_snprintf(pos, end - pos, "\t");
if (ret < 0 || ret >= end - pos)
return retpos - buf;
pos += ret;
}
ret = os_snprintf(pos, end - pos, "\t%s",
wpa_ssid_txt(res->ssid, res->ssid_len));
if (ret < 0 || ret >= end - pos)
return retpos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return retpos - buf;
pos += ret;
}
return pos - buf;
}
static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s,
const char *cmd, char *buf,
size_t buflen)
{
u8 bssid[ETH_ALEN];
size_t i;
struct wpa_scan_results *results;
struct wpa_scan_res *bss;
int ret;
char *pos, *end;
const u8 *ie, *ie2;
results = wpa_s->scan_res;
if (results == NULL)
return 0;
if (hwaddr_aton(cmd, bssid) == 0) {
for (i = 0; i < results->num; i++) {
if (os_memcmp(bssid, results->res[i]->bssid, ETH_ALEN)
== 0)
break;
}
} else
i = atoi(cmd);
if (i >= results->num || results->res[i] == NULL)
return 0; /* no match found */
bss = results->res[i];
pos = buf;
end = buf + buflen;
ret = snprintf(pos, end - pos,
"bssid=" MACSTR "\n"
"freq=%d\n"
"beacon_int=%d\n"
"capabilities=0x%04x\n"
"qual=%d\n"
"noise=%d\n"
"level=%d\n"
"tsf=%016llu\n"
"ie=",
MAC2STR(bss->bssid), bss->freq, bss->beacon_int,
bss->caps, bss->qual, bss->noise, bss->level,
(unsigned long long) bss->tsf);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ie = (const u8 *) (bss + 1);
for (i = 0; i < bss->ie_len; i++) {
ret = snprintf(pos, end - pos, "%02x", *ie++);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
ret = snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ret = os_snprintf(pos, end - pos, "flags=");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
if (ie)
pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]);
ie2 = wpa_scan_get_ie(bss, WLAN_EID_RSN);
if (ie2)
pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]);
if (!ie && !ie2 && bss->caps & IEEE80211_CAP_PRIVACY) {
ret = os_snprintf(pos, end - pos, "[WEP]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (bss->caps & IEEE80211_CAP_IBSS) {
ret = os_snprintf(pos, end - pos, "[IBSS]");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
ret = snprintf(pos, end - pos, "\n");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
ie = wpa_scan_get_ie(bss, WLAN_EID_SSID);
ret = os_snprintf(pos, end - pos, "ssid=%s\n",
ie ? wpa_ssid_txt(ie + 2, ie[1]) : "");
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
return pos - buf;
}
