[PATCH] WEP fields are incorrectly shown to be INSIDE snap in the doc

>If encryption is enabled, each fragment payload size is reduced by enough space
>to add the prefix and postfix (IV and ICV totalling 8 bytes in the case of WEP)
>So if you have 1500 bytes of payload with ieee->fts set to 500 without
>encryption it will take 3 frames.  With WEP it will take 4 frames as the
>payload of each frame is reduced to 492 bytes.

Text is correct, but in picture (IV,payload,ICV) sits inside SNAP.
Patch corrects this.

Signed-Off-By: Denis Vlasenko <vda@ilport.com.ua>
Acked-By: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c
index 8fdd943..0949803 100644 (file)
--- a/net/ieee80211/ieee80211_tx.c
+++ b/net/ieee80211/ieee80211_tx.c
@@ -56,7 +56,18 @@ Desc. | ctrl | dura |  DA/RA  |   TA    |    SA   | Sequ |  Frame  |  fcs |
       `--------------------------------------------------|         |------'
 Total: 28 non-data bytes                                 `----.----'
                                                               |
-       .- 'Frame data' expands to <---------------------------'
+       .- 'Frame data' expands, if WEP enabled, to <----------'
+       |
+       V
+      ,-----------------------.
+Bytes |  4  |   0-2296  |  4  |
+      |-----|-----------|-----|
+Desc. | IV  | Encrypted | ICV |
+      |     | Packet    |     |
+      `-----|           |-----'
+            `-----.-----'
+                  |
+       .- 'Encrypted Packet' expands to
        |
        V
       ,---------------------------------------------------.
@@ -65,18 +76,7 @@ Bytes |  1   |  1   |    1    |    3     |  2   |  0-2304 |
 Desc. | SNAP | SNAP | Control |Eth Tunnel| Type | IP      |
       | DSAP | SSAP |         |          |      | Packet  |
       | 0xAA | 0xAA |0x03 (UI)|0x00-00-F8|      |         |
-      `-----------------------------------------|         |
-Total: 8 non-data bytes                         `----.----'
-                                                     |
-       .- 'IP Packet' expands, if WEP enabled, to <--'
-       |
-       V
-      ,-----------------------.
-Bytes |  4  |   0-2296  |  4  |
-      |-----|-----------|-----|
-Desc. | IV  | Encrypted | ICV |
-      |     | IP Packet |     |
-      `-----------------------'
+      `----------------------------------------------------
 Total: 8 non-data bytes
 
 802.3 Ethernet Data Frame