C++ (Cpp) parse_rsn Examples

Example #1

File: wpaclean.c Project: jmesmon/aircrack-ng

static int parse_elem_vendor(const unsigned char *e, const int l)
{
	const struct ieee80211_ie_wpa *wpa = (const struct ieee80211_ie_wpa *) e;

	if (l < 5) return 0;

	if (memcmp(wpa->wpa_oui, "\x00\x50\xf2", 3) != 0) return 0;

	if (l < 8) return 0;

	if (wpa->wpa_type != WPA_OUI_TYPE) return 0;

	return parse_rsn((unsigned char *) &wpa->wpa_version, l - 6, 0);
}

Example #2

File: wpaclean.c Project: JoeGilkey/carnivore

static void process_beacon(struct ieee80211_frame * wh, int totlen)
{
	REQUIRE(wh != NULL);

	unsigned char * p = (unsigned char *) (wh + 1);
	int bhlen = 8 + 2 + 2;
	int len = totlen;
	char ssid[256];
	int wpa = 0;
	int rc;
	int ssids = 0;
	int hidden = 0;
	struct network * n;

	totlen -= sizeof(*wh);

	if (totlen < bhlen) goto __bad;

	if (!(IEEE80211_BEACON_CAPABILITY(p) & IEEE80211_CAPINFO_PRIVACY)) return;

	p += bhlen;
	totlen -= bhlen;

	ssid[0] = 0;

	while (totlen > 2)
	{
		int id = *p++;
		int l = *p++;

		totlen -= 2;

		if (totlen < l) goto __bad;

		switch (id)
		{
			case IEEE80211_ELEMID_SSID:
				if (++ssids > 1) break;

				if (l == 0 || p[0] == 0)
					hidden = 1;
				else
				{
					memcpy(ssid, p, l);
					ssid[l] = 0;
				}
				break;

			case IEEE80211_ELEMID_VENDOR:
				if ((rc = parse_elem_vendor(&p[-2], l + 2)) == -1) goto __bad;

				if (rc) wpa = 1;
				break;

			case IEEE80211_ELEMID_RSN:
				if ((rc = parse_rsn(p, l, 1)) == -1) goto __bad;

				if (rc) wpa = 1;
				break;
		}

		p += l;
		totlen -= l;
	}

	if (!wpa) return;

	n = find_add_net(wh->i_addr3);

	if (n->n_beaconlen) return;

	n->n_beaconlen = len;
	ALLEGE(n->n_beaconlen <= (int) sizeof(n->n_beacon));
	memcpy(n->n_beacon, wh, n->n_beaconlen);
	strncpy(n->n_ssid, ssid, sizeof(n->n_ssid));
	(n->n_ssid)[sizeof(n->n_ssid) - 1] = '\0';

	check_network(n);
	return;
__bad:
	printf("bad beacon\n");
}