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Looks like I uploaded wrong udp.inc in previous revision...

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git-svn-id: svn://kolibrios.org@1484 a494cfbc-eb01-0410-851d-a64ba20cac60
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hidnplayr 2010-06-07 14:17:36 +00:00
parent e4b0f6f30d
commit 9cbcb28cd1
1 changed files with 12 additions and 8 deletions
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20
kernel/branches/net/network/udp.inc
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@ -68,6 +68,10 @@ UDP_init:
; pointer to device struct in ebx ; pointer to device struct in ebx
; UDP Packet size in ecx ; UDP Packet size in ecx
; pointer to UDP Packet in edx ; pointer to UDP Packet in edx
;
; esi = ipv4 source address
; edi = ipv4 dest address
;
; OUT: / ; OUT: /
; ;
;----------------------------------------------------------------- ;-----------------------------------------------------------------
@ -77,20 +81,22 @@ UDP_handler:
DEBUGF 1,"UDP_Handler, checksum:%x, size:%u\n", [edx+UDP_Packet.Checksum]:4, ecx DEBUGF 1,"UDP_Handler, checksum:%x, size:%u\n", [edx+UDP_Packet.Checksum]:4, ecx
; First validate, checksum: ; First validate, checksum:
cmp [edx + UDP_Packet.Checksum], 0 cmp [edx + UDP_Packet.Checksum], 0
jz .no_checksum jz .no_checksum
xchg edi, esi ; save ipv4 source address so we can look it up later
push edx push edx
push esi push esi
push edi push edi
mov esi, edx mov esi, edx
call UDP_checksum call UDP_checksum ; this destroys edx, ecx and esi (but not edi! :)
pop edx pop edx
cmp [edx + UDP_Packet.Checksum], 0 cmp [edx + UDP_Packet.Checksum], 0
jnz .checksum_mismatch jnz .checksum_mismatch
.no_checksum: .no_checksum:
DEBUGF 1,"UDP Checksum is correct\n" DEBUGF 1,"UDP Checksum is correct\n"
@ -122,9 +128,7 @@ UDP_handler:
cmp [eax + SOCKET_head.end + IPv4_SOCKET.RemoteIP], 0xffffffff cmp [eax + SOCKET_head.end + IPv4_SOCKET.RemoteIP], 0xffffffff
je .ok1 je .ok1
; mov esi, [esp] ; start of data (ethernet header) cmp [eax + SOCKET_head.end + IPv4_SOCKET.RemoteIP], edi ; edi is IPv4 destination address
; mov esi, [esi + ETH_FRAME.Data + IPv4_Packet.SourceAddress] ; get the Source address from the IP Packet FIXME
cmp [eax + SOCKET_head.end + IPv4_SOCKET.RemoteIP], edi ;esi
jne .try_more ; Quit if the source IP is not valid, check for more sockets with this IP/PORT combination jne .try_more ; Quit if the source IP is not valid, check for more sockets with this IP/PORT combination