Author: wmb Date: Fri Dec 23 00:59:30 2011 New Revision: 2784 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/2784
Log: WiFi supplicant code - various tweaks. The major developer-visible one is that the debug? flag is now a static variable so it is easier to set. The rcnt variable is now accessed as a 64-bit data type instead of as an 8-byte array.
Modified: ofw/wifi/data.fth ofw/wifi/eapol.fth
Modified: ofw/wifi/data.fth ============================================================================== --- ofw/wifi/data.fth Fri Dec 23 00:59:27 2011 (r2783) +++ ofw/wifi/data.fth Fri Dec 23 00:59:30 2011 (r2784) @@ -153,7 +153,7 @@ 3 max country-ie-buf swap move ( ) ;
-false instance value debug? +false value debug? false instance value scan?
0 instance value wifi \ Current wifi-node @@ -177,12 +177,12 @@ : my-mac! ( adr -- ) wifi >my-mac /mac-adr move ; : ssid$ ( -- $ ) wifi >ssid cscount ; : ssid! ( $ -- ) /ssid 1- min wifi >ssid dup /ssid erase swap move ; -: last-rcnt ( -- adr ) wifi >last-rcnt ; -: last-rcnt! ( adr -- ) wifi >last-rcnt /rcnt move ; -: last-rcnt++ ( -- ) - wifi >last-rcnt 4 + dup be-l@ 1+ dup rot be-l! - 0= if wifi >last-rcnt dup be-l@ 1+ swap be-l! then -; +32\ : be-x! ( d adr -- ) tuck be-l! la1+ be-l! ; +32\ : be-x@ ( adr -- d ) dup la1+ be-l@ swap be-l@ ; +: last-rcnt@ ( -- d ) wifi >last-rcnt be-x@ ; +: last-rcnt! ( d -- ) wifi >last-rcnt be-x! ; + +: last-rcnt++ ( -- ) last-rcnt@ 1. d+ last-rcnt! ;
: init-wifi-node ( mac$ -- ) drop my-mac! @@ -206,7 +206,7 @@ swap insert-after init-wifi-node then - last-rcnt /rcnt ff fill + -1. last-rcnt! ;
\ LICENSE_BEGIN
Modified: ofw/wifi/eapol.fth ============================================================================== --- ofw/wifi/eapol.fth Fri Dec 23 00:59:27 2011 (r2783) +++ ofw/wifi/eapol.fth Fri Dec 23 00:59:30 2011 (r2784) @@ -131,7 +131,12 @@ randomize rn /n init-cnt$ mac-time$ snonce$ sha1-prf ; -: compute-snonce ( -- ) snonce 8 + dup @ over 4 + @ 1 0 d+ 2 pick 4 + ! swap ! ; +: compute-snonce ( -- ) + snonce 8 + ( adr ) + dup d@ ( adr d ) + 1. d+ ( adr d' ) + rot d! ( ) +;
\ ======================================================================= \ Pairwise temporal keys (PTK) @@ -199,7 +204,8 @@ \ For TKIP, mic = hmac-md5 (adr len) \ For AES, mic = hmac-sha1 (adr len) : compute-mic ( adr len ct -- ) - >r 1 ptk >kck d# 16 + >r ( adr len r: ct ) + 1 ptk >kck d# 16 ( adr len 1 'ptk-kck 16 r: ct ) r> ct-tkip = if hmac-md5 else hmac-sha1 then ( madr mlen ) /mic min mic swap move ; @@ -359,7 +365,7 @@ eapol-key eapolbuf >ptype c! \ EAPOL-key kt>dtype eapolbuf >dtype c! \ Descriptor type ctype-p ct>klen eapolbuf >klen be-w! \ Key length - last-rcnt eapolbuf >rcnt /rcnt move \ Replay counter + last-rcnt@ eapolbuf >rcnt be-x! \ Replay counter ;
: resync-gtk ( -- ) @@ -406,13 +412,17 @@ eapolbuf /eapol-key send-eapol-msg ; : 1/4-valid? ( -- ok? ) - data >dtype c@ kt>dtype <> if false exit then \ Descriptor type mismatch - data >klen be-w@ ctype-p ct>klen <> if false exit then \ Bad key len + data >dtype c@ kt>dtype <> if " 1d" vtype false exit then \ Descriptor type mismatch + data >klen be-w@ ctype-p ct>klen <> if " 1k" vtype false exit then \ Bad key len true ; : process-1/4 ( -- ) " Process EAPOL-key message 1 of 4" vtype - eapol-state s1/4 <> if " Unexpected pairwise key message 1 of 4" vtype then + data /eapol-key vdump + eapol-state s1/4 <> if + " Unexpected pairwise key message 1 of 4" vtype +\ ." Possible bad WPA password" cr abort + then 1/4-valid? if data >ver c@ to eapol-ver data >knonce anonce$ move @@ -420,10 +430,10 @@ then ; : 3/4-valid? ( -- ok? ) - data >dtype c@ kt>dtype <> if false exit then \ Descriptor type mismatch - data >klen be-w@ ctype-p ct>klen <> if false exit then \ Bad key len - data >knonce anonce /nonce comp if false exit then \ Nonce differ - data ctype-p mic-ok? 0= if false exit then \ Bad mic + data >dtype c@ kt>dtype <> if " 3d" vtype false exit then \ Descriptor type mismatch + data >klen be-w@ ctype-p ct>klen <> if " 3k" vtype false exit then \ Bad key len + data >knonce anonce /nonce comp if " 3n" vtype false exit then \ Nonce differ + data ctype-p mic-ok? 0= if " 3m" vtype false exit then \ Bad mic data >kinfo be-w@ ki-encr-key and if data decrypt-parse-ie else true then ; : process-3/4 ( -- ) @@ -450,9 +460,9 @@ then ; : 1/2-valid? ( -- ok? ) - data >dtype c@ kt>dtype <> if false exit then \ Descriptor type mismatch - data >klen be-w@ ctype-g ct>klen <> if false exit then \ Bad key len - data ctype-p mic-ok? 0= if false exit then \ Bad MIC + data >dtype c@ kt>dtype <> if " 2d" vtype false exit then \ Descriptor type mismatch + data >klen be-w@ ctype-g ct>klen <> if " 2k" vtype false exit then \ Bad key len + data ctype-p mic-ok? 0= if " 2m" vtype false exit then \ Bad MIC data decrypt-gtk ; : process-1/2 ( -- ) @@ -490,8 +500,8 @@ data >etype be-w@ eapol-type = \ EAPOL frame data >ptype c@ eapol-key = and if \ EAPOL-key data >ver c@ to eapol-ver - data >rcnt last-rcnt /rcnt comp 0> if \ A new eapol-key record - data >rcnt last-rcnt! \ Update last replay counter + data >rcnt be-x@ last-rcnt@ d> if \ A new eapol-key record + data >rcnt be-x@ last-rcnt! \ Update last replay counter process-eapol-key else " Same replay count; packet discarded" vtype @@ -591,7 +601,7 @@ : .bss-type ( n -- ) 1 = if ." Infrastructure" else ." Adhoc" then ; : .cap ( cap -- ) ." Type: " dup 3 and .bss-type cr - ." WEP: " dup h# 10 and .on/off + ." Security: " dup h# 10 and .on/off ." Short preamble: " dup h# 20 and .on/off ." Packet binary convolution coding: " dup h# 40 and .on/off ." Channel agility: " dup h# 80 and .on/off @@ -865,8 +875,11 @@ channel ssid$ target-mac$ associate 0= if false exit then cr ktype=wpa? if - do-key-handshakes - done? + ['] do-key-handshakes catch if + false + else + done? + then else true then
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