| 32,7 → 32,7 |
|---|
| |
| locals |
| temp_bits db ? |
| window dd ? |
| rcv_window dd ? |
| endl |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_output: socket=%x state=%u\n", eax, [eax + TCP_SOCKET.t_state] |
| 128,7 → 128,7 |
|---|
| ; If FIN has been sent, but not ACKed, but we havent been called to retransmit, esi will be -1 |
| ; Otherwise, window shrank after we sent into it. |
| |
| jae .not_persist |
| jge .not_persist |
| |
| ; enter persist state |
| |
| 176,8 → 176,12 |
|---|
| ;------------------------------- |
| ; calculate window advertisement |
| |
| xor ecx, ecx |
| test [eax + SOCKET.state], SS_CANTRCVMORE |
| jnz @f |
| mov ecx, SOCKET_BUFFER_SIZE |
| sub ecx, [eax + STREAM_SOCKET.rcv.size] |
| @@: |
| |
| ;------------------------------ |
| ; Sender silly window avoidance |
| 235,7 → 239,7 |
|---|
| add ebx, [eax + TCP_SOCKET.RCV_NXT] |
| |
| cmp ebx, ecx |
| jb @f |
| jl @f |
| mov ebx, ecx |
| @@: |
| |
| 246,9 → 250,8 |
|---|
| cmp ebx, edi |
| jae .send |
| |
| shl ebx, 1 |
| ; cmp ebx, [eax + TCP_SOCKET.] ;;; TODO: check with receive buffer high water mark |
| ; jae TCP_send |
| cmp ebx, SOCKET_BUFFER_SIZE/2 |
| jae .send |
| |
| .no_window: |
| |
| 289,11 → 292,8 |
|---|
| .enter_persist: |
| |
| cmp [eax + STREAM_SOCKET.snd.size], 0 ; Data ready to send? |
| jne @f |
| and [eax + TCP_SOCKET.timer_flags], not timer_flag_retransmission |
| jne @f |
| |
| test [eax + TCP_SOCKET.timer_flags], timer_flag_persist ; Persist timer already expired? |
| je @f |
| test [eax + TCP_SOCKET.timer_flags], timer_flag_retransmission or timer_flag_persist |
| jnz @f |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_output: Entering persist state\n" |
| 485,21 → 485,31 |
|---|
| ; Calculate the receive window. |
| ; Dont shrink window, but avoid silly window syndrome |
| |
| xor ebx, ebx |
| test [eax + SOCKET.state], SS_CANTRCVMORE |
| jnz @f |
| mov ebx, SOCKET_BUFFER_SIZE |
| sub ebx, [eax + STREAM_SOCKET.rcv.size] |
| |
| cmp ebx, SOCKET_BUFFER_SIZE/4 |
| jae @f |
| jge @f |
| cmp ebx, [eax + TCP_SOCKET.t_maxseg] |
| jae @f |
| jge @f |
| xor ebx, ebx |
| @@: |
| |
| cmp ebx, TCP_max_win ;;;; shl rcv_scale |
| jbe @f |
| mov ebx, TCP_max_win ;;;; shl rcv_scale |
| |
| mov cl, [eax + TCP_SOCKET.RCV_SCALE] |
| push eax |
| mov eax, TCP_max_win |
| shl eax, cl |
| cmp ebx, eax |
| jle @f |
| mov ebx, eax |
| @@: |
| pop eax |
| |
| |
| mov ecx, [eax + TCP_SOCKET.RCV_ADV] |
| sub ecx, [eax + TCP_SOCKET.RCV_NXT] |
| cmp ebx, ecx |
| 507,8 → 517,10 |
|---|
| mov ebx, ecx |
| @@: |
| |
| ;; TODO URGENT POINTER |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_send: window=%u\n", ebx |
| mov [window], ebx |
| mov [rcv_window], ebx |
| |
| mov cl, [eax + TCP_SOCKET.RCV_SCALE] |
| shr ebx, cl |
| 668,7 → 680,7 |
|---|
| |
| ; update advertised receive window |
| |
| mov ecx, [window] |
| mov ecx, [rcv_window] |
| test ecx, ecx |
| jz @f |
| add ecx, [eax + TCP_SOCKET.RCV_NXT] |