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wlantest: Validate MMIE KeyID reserved bits

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This commit is contained in:
Jouni Malinen 2010-11-13 13:14:09 +02:00
parent 16b8b6eadf
commit f3b9ed70c5
1 changed files with 6 additions and 1 deletions
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7
wlantest/rx_mgmt.c
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@ -587,7 +587,7 @@ static int check_bip(struct wlantest *wt, const u8 *data, size_t len)
const struct ieee80211_mgmt *mgmt; const struct ieee80211_mgmt *mgmt;
u16 fc, stype; u16 fc, stype;
const u8 *mmie; const u8 *mmie;
int keyid; u16 keyid;
struct wlantest_bss *bss; struct wlantest_bss *bss;
mgmt = (const struct ieee80211_mgmt *) data; mgmt = (const struct ieee80211_mgmt *) data;
@ -619,6 +619,11 @@ static int check_bip(struct wlantest *wt, const u8 *data, size_t len)
mmie = data + len - 16; mmie = data + len - 16;
keyid = WPA_GET_LE16(mmie); keyid = WPA_GET_LE16(mmie);
if (keyid & 0xf000) {
wpa_printf(MSG_INFO, "MMIE KeyID reserved bits not zero "
"(%04x) from " MACSTR, keyid, MAC2STR(mgmt->sa));
keyid &= 0x0fff;
}
if (keyid < 4 || keyid > 5) { if (keyid < 4 || keyid > 5) {
wpa_printf(MSG_INFO, "Unexpected MMIE KeyID %u from " MACSTR, wpa_printf(MSG_INFO, "Unexpected MMIE KeyID %u from " MACSTR,
keyid, MAC2STR(mgmt->sa)); keyid, MAC2STR(mgmt->sa));