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core: Find WPA BSS from scan results

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Parse vendor specific IE and BSS scan results, find it AP has
WPA security details.
This commit is contained in:
Ravi kumar Veeramally 2015-03-16 13:03:03 +02:00 committed by Denis Kenzior
parent 29a89d2a8b
commit 02b501b4f0
1 changed files with 21 additions and 1 deletions
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22
src/wiphy.c
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@ -65,6 +65,7 @@ struct bss {
int32_t signal_strength; int32_t signal_strength;
uint16_t capability; uint16_t capability;
uint8_t *rsne; uint8_t *rsne;
uint8_t *wpa;
}; };
struct netdev { struct netdev {
@ -394,6 +395,7 @@ static void bss_free(void *data)
bss->addr[0], bss->addr[1], bss->addr[2], bss->addr[0], bss->addr[1], bss->addr[2],
bss->addr[3], bss->addr[4], bss->addr[5]); bss->addr[3], bss->addr[4], bss->addr[5]);
l_free(bss->rsne); l_free(bss->rsne);
l_free(bss->wpa);
l_free(bss); l_free(bss);
} }
@ -915,7 +917,7 @@ error:
} }
static bool parse_ie(struct bss *bss, const uint8_t **ssid, int *ssid_len, static bool parse_ie(struct bss *bss, const uint8_t **ssid, int *ssid_len,
const void *data, uint16_t len) const void *data, uint16_t len)
{ {
struct ie_tlv_iter iter; struct ie_tlv_iter iter;
@ -939,6 +941,12 @@ static bool parse_ie(struct bss *bss, const uint8_t **ssid, int *ssid_len,
bss->rsne = l_memdup(iter.data - 2, bss->rsne = l_memdup(iter.data - 2,
iter.len + 2); iter.len + 2);
break; break;
case IE_TYPE_VENDOR_SPECIFIC:
/* Interested only in WPA IE from Vendor data */
if (!bss->wpa && is_ie_wpa_ie(iter.data, iter.len))
bss->wpa = l_memdup(iter.data - 2,
iter.len + 2);
break;
default: default:
break; break;
} }
@ -1040,6 +1048,18 @@ static void parse_bss(struct netdev *netdev, struct l_genl_attr *attr)
} }
ssid_security = scan_get_ssid_security(bss->capability, &rsne); ssid_security = scan_get_ssid_security(bss->capability, &rsne);
} else if (bss->wpa) {
struct ie_rsn_info wpa;
int res = ie_parse_wpa_from_data(bss->wpa, bss->wpa[1] + 2,
&wpa);
if (res < 0) {
l_debug("Cannot parse WPA IE %s (%d, %s)",
util_ssid_to_utf8(ssid_len, ssid),
res, strerror(-res));
goto fail;
}
ssid_security = scan_get_ssid_security(bss->capability, &wpa);
} else } else
ssid_security = scan_get_ssid_security(bss->capability, NULL); ssid_security = scan_get_ssid_security(bss->capability, NULL);