From a5fe736eaf9bae1b45317313de04b564441b94f2 Mon Sep 17 00:00:00 2001
From: Jeff Garzik <jgarzik@pobox.com>
Date: Mon, 27 Jun 2005 22:47:18 -0400
Subject: [PATCH] Update is_multicast_ether_addr() definition; net/ieee80211.h
 cleanups.

---
 include/linux/etherdevice.h |  2 +-
 include/net/ieee80211.h     | 48 ++++++++-----------------------------
 2 files changed, 11 insertions(+), 39 deletions(-)

diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index a1478258d0..8a2df4dfbc 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -65,7 +65,7 @@ static inline int is_zero_ether_addr(const u8 *addr)
  */
 static inline int is_multicast_ether_addr(const u8 *addr)
 {
-	return addr[0] & 0x01;
+	return ((addr[0] != 0xff) && (0x01 & addr[0]));
 }
 
 /**
diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h
index 7fe57f957a..151c4f2035 100644
--- a/include/net/ieee80211.h
+++ b/include/net/ieee80211.h
@@ -94,6 +94,8 @@ struct eapol {
 	u16 length;
 } __attribute__ ((packed));
 
+#define IEEE80211_1ADDR_LEN 10
+#define IEEE80211_2ADDR_LEN 16
 #define IEEE80211_3ADDR_LEN 24
 #define IEEE80211_4ADDR_LEN 30
 #define IEEE80211_FCS_LEN    4
@@ -300,23 +302,6 @@ struct ieee80211_snap_hdr {
 #define WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH 9
 
 
-/* Information Element IDs */
-#define WLAN_EID_SSID 0
-#define WLAN_EID_SUPP_RATES 1
-#define WLAN_EID_FH_PARAMS 2
-#define WLAN_EID_DS_PARAMS 3
-#define WLAN_EID_CF_PARAMS 4
-#define WLAN_EID_TIM 5
-#define WLAN_EID_IBSS_PARAMS 6
-#define WLAN_EID_CHALLENGE 16
-#define WLAN_EID_RSN 48
-#define WLAN_EID_GENERIC 221
-
-#define IEEE80211_MGMT_HDR_LEN 24
-#define IEEE80211_DATA_HDR3_LEN 24
-#define IEEE80211_DATA_HDR4_LEN 30
-
-
 #define IEEE80211_STATMASK_SIGNAL (1<<0)
 #define IEEE80211_STATMASK_RSSI (1<<1)
 #define IEEE80211_STATMASK_NOISE (1<<2)
@@ -441,6 +426,8 @@ struct ieee80211_stats {
 
 struct ieee80211_device;
 
+#include "ieee80211_crypt.h"
+
 #define SEC_KEY_1         (1<<0)
 #define SEC_KEY_2         (1<<1)
 #define SEC_KEY_3         (1<<2)
@@ -488,15 +475,6 @@ Total: 28-2340 bytes
 
 */
 
-struct ieee80211_header_data {
-	u16 frame_ctl;
-	u16 duration_id;
-	u8 addr1[6];
-	u8 addr2[6];
-	u8 addr3[6];
-	u16 seq_ctrl;
-};
-
 #define BEACON_PROBE_SSID_ID_POSITION 12
 
 /* Management Frame Information Element Types */
@@ -541,7 +519,7 @@ struct ieee80211_info_element {
 */
 
 struct ieee80211_authentication {
-	struct ieee80211_header_data header;
+	struct ieee80211_hdr_3addr header;
 	u16 algorithm;
 	u16 transaction;
 	u16 status;
@@ -550,7 +528,7 @@ struct ieee80211_authentication {
 
 
 struct ieee80211_probe_response {
-	struct ieee80211_header_data header;
+	struct ieee80211_hdr_3addr header;
 	u32 time_stamp[2];
 	u16 beacon_interval;
 	u16 capability;
@@ -648,12 +626,6 @@ enum ieee80211_state {
 #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
 
 
-extern inline int is_broadcast_ether_addr(const u8 *addr)
-{
-	return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) &&   \
-		(addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff));
-}
-
 #define CFG_IEEE80211_RESERVE_FCS (1<<0)
 #define CFG_IEEE80211_COMPUTE_FCS (1<<1)
 
@@ -787,21 +759,21 @@ extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mod
 
 extern inline int ieee80211_get_hdrlen(u16 fc)
 {
-	int hdrlen = 24;
+	int hdrlen = IEEE80211_3ADDR_LEN;
 
 	switch (WLAN_FC_GET_TYPE(fc)) {
 	case IEEE80211_FTYPE_DATA:
 		if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
-			hdrlen = 30; /* Addr4 */
+			hdrlen = IEEE80211_4ADDR_LEN;
 		break;
 	case IEEE80211_FTYPE_CTL:
 		switch (WLAN_FC_GET_STYPE(fc)) {
 		case IEEE80211_STYPE_CTS:
 		case IEEE80211_STYPE_ACK:
-			hdrlen = 10;
+			hdrlen = IEEE80211_1ADDR_LEN;
 			break;
 		default:
-			hdrlen = 16;
+			hdrlen = IEEE80211_2ADDR_LEN;
 			break;
 		}
 		break;
-- 
2.39.5