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Fixed problem with UDP_input when checksum was 0.

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git-svn-id: svn://kolibrios.org@2369 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2012-02-22 10:44:57 +00:00
parent 6a006901a5
commit 8030c874a3
1 changed files with 9 additions and 9 deletions
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18
kernel/branches/net/network/udp.inc
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@ -126,7 +126,7 @@ UDP_input:
push esi
UDP_checksum (edi), (edi+4)
pop edx
pop esi
jnz .checksum_mismatch
.no_checksum:
@ -134,16 +134,16 @@ UDP_input:
; Convert port numbers to intel format
rol [edx + UDP_header.DestinationPort], 8
rol [edx + UDP_header.SourcePort], 8
rol [edx + UDP_header.Length], 8
rol [esi + UDP_header.DestinationPort], 8
rol [esi + UDP_header.SourcePort], 8
rol [esi + UDP_header.Length], 8
; Look for a socket where
; IP Packet UDP Destination Port = local Port
; IP Packet SA = Remote IP
mov si, [edx + UDP_header.DestinationPort]
mov cx, [edx + UDP_header.SourcePort]
mov cx, [esi + UDP_header.SourcePort]
mov dx, [esi + UDP_header.DestinationPort]
mov edi, [edi + 4] ; ipv4 source address
mov eax, net_sockets
@ -158,7 +158,7 @@ UDP_input:
cmp [eax + SOCKET.Protocol], IP_PROTO_UDP
jne .next_socket
cmp [eax + UDP_SOCKET.LocalPort], si
cmp [eax + UDP_SOCKET.LocalPort], dx
jne .next_socket
DEBUGF 1,"using socket: %x\n", eax
@ -187,9 +187,9 @@ UDP_input:
.updatesock:
inc [UDP_PACKETS_RX]
DEBUGF 1,"Found valid UDP packet for socket %x\n", eax
lea esi, [edx + sizeof.UDP_header]
movzx ecx, [edx + UDP_header.Length]
movzx ecx, [esi + UDP_header.Length]
sub ecx, sizeof.UDP_header
add esi, sizeof.UDP_header
jmp SOCKET_input