mac80211: Support parsing EHT elements

Parse the new EHT elements in the element parsing utilities.

Signed-off-by: Ilan Peer <[e-mail]>
Link: https://lore.kernel.org/r/20220214173004.4d52ddaf1af4.Ib6beb1aa85e25b71ce40d3260b2e5b117cc42308@changeid
Signed-off-by: Johannes Berg <[e-mail]>

net/mac80211/ieee80211_i.h

···
 	const struct ieee80211_s1g_oper_ie *s1g_oper;
 	const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
 	const struct ieee80211_aid_response_ie *aid_resp;
+	const struct ieee80211_eht_cap_elem *eht_cap;
+	const struct ieee80211_eht_operation *eht_operation;
 
 	/* length of them, respectively */
 	u8 ext_capab_len;
···
 	u8 bssid_index_len;
 	u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
 	u8 tx_pwr_env_num;
+	u8 eht_cap_len;
 
 	/* whether a parse error occurred while retrieving these elements */
 	bool parse_error;

net/mac80211/util.c

···
 		if (len >= sizeof(*elems->he_6ghz_capa))
 			elems->he_6ghz_capa = data;
 		break;
+	case WLAN_EID_EXT_EHT_CAPABILITY:
+		if (ieee80211_eht_capa_size_ok(elems->he_cap,
+					       data, len)) {
+			elems->eht_cap = data;
+			elems->eht_cap_len = len;
+		}
+		break;
+	case WLAN_EID_EXT_EHT_OPERATION:
+		if (ieee80211_eht_oper_size_ok(data, len))
+			elems->eht_operation = data;
+		break;
 	}
 }