| 26,8 → 26,12 |
|---|
| ; |
| ;----------------------------------------------------------------- |
| align 4 |
| TCP_output: |
| proc TCP_output |
| |
| locals |
| temp_bits db ? |
| endl |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_output: socket=%x\n", eax |
| |
| push eax |
| 57,7 → 61,7 |
|---|
| |
| .not_idle: |
| .again: |
| mov [eax + TCP_SOCKET.temp_bits], 0 |
| mov [temp_bits], 0 |
| |
| mov ebx, [eax + TCP_SOCKET.SND_NXT] ; calculate offset (71) |
| sub ebx, [eax + TCP_SOCKET.SND_UNA] ; |
| 145,7 → 149,7 |
|---|
| jbe @f |
| |
| mov esi, [eax + TCP_SOCKET.t_maxseg] |
| or [eax + TCP_SOCKET.temp_bits], TCP_BIT_SENDALOT |
| or [temp_bits], TCP_BIT_SENDALOT |
| @@: |
| |
| ;-------------------------------------------- |
| 406,9 → 410,41 |
|---|
| jbe .no_overflow |
| |
| mov esi, [eax + TCP_SOCKET.t_maxseg] |
| or [eax + TCP_SOCKET.temp_bits], TCP_BIT_SENDALOT |
| or [temp_bits], TCP_BIT_SENDALOT |
| .no_overflow: |
| |
| ;---------------------------------------------------- |
| ; Calculate the receive window. |
| ; Dont shrink window, but avoid silly window syndrome |
| |
| mov ebx, SOCKET_MAXDATA |
| sub ebx, [eax + STREAM_SOCKET.rcv.size] |
| |
| cmp ebx, SOCKET_MAXDATA/4 |
| jae @f |
| cmp ebx, [eax + TCP_SOCKET.t_maxseg] |
| jae @f |
| xor ebx, ebx |
| @@: |
| |
| cmp ebx, TCP_max_win |
| jbe @f |
| mov ebx, TCP_max_win |
| @@: |
| |
| mov ecx, [eax + TCP_SOCKET.RCV_ADV] |
| sub ecx, [eax + TCP_SOCKET.RCV_NXT] |
| cmp ebx, ecx |
| ja @f |
| mov ebx, ecx |
| @@: |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_send: window = %u\n", ebx |
| |
| mov cl, [eax + TCP_SOCKET.RCV_SCALE] |
| shr ebx, cl |
| xchg bl, bh |
| |
| ;----------------------------------------------------------------- |
| ; Start by pushing all TCP header values in reverse order on stack |
| ; (essentially, creating the tcp header on the stack!) |
| 415,7 → 451,7 |
|---|
| |
| pushw 0 ; .UrgentPointer dw ? |
| pushw 0 ; .Checksum dw ? |
| pushw 0x00a0 ; .Window dw ? ;;;;;;; FIXME (370) |
| pushw bx ; .Window dw ? |
| shl edi, 2 ; .DataOffset db ? only 4 left-most bits |
| shl dx, 8 |
| or dx, di ; .Flags db ? |
| 566,7 → 602,7 |
|---|
| push [eax + TCP_SOCKET.RCV_NXT] |
| pop [eax + TCP_SOCKET.last_ack_sent] |
| |
| ; and flags |
| ; clear the ACK flags |
| and [eax + TCP_SOCKET.t_flags], not (TF_ACKNOW + TF_DELACK) |
| |
| ;-------------- |
| 582,7 → 618,7 |
|---|
| ;----------------------------- |
| ; Check if we need more output |
| |
| test [eax + TCP_SOCKET.temp_bits], TCP_BIT_SENDALOT |
| test [temp_bits], TCP_BIT_SENDALOT |
| jnz TCP_output.again |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_send: success!\n" |
| 622,7 → 658,4 |
|---|
| ret |
| |
| |
| |
| |
| |
| |
| endp |