| 21,9 → 21,8 |
|---|
| ; TCP_output |
| ; |
| ; IN: eax = socket pointer |
| ; OUT: eax = 0 on success/errorcode |
| ; |
| ; OUT: / |
| ; |
| ;----------------------------------------------------------------- |
| align 4 |
| proc TCP_output |
| 177,7 → 176,7 |
|---|
| jz .len_zero |
| |
| cmp esi, [eax + TCP_SOCKET.t_maxseg] |
| je TCP_send |
| je .send |
| |
| add ebx, esi ; offset + length |
| cmp ebx, [eax + STREAM_SOCKET.snd.size] |
| 184,24 → 183,24 |
|---|
| jb @f |
| |
| test [eax + TCP_SOCKET.t_flags], TF_NODELAY |
| jnz TCP_send |
| jnz .send |
| |
| mov ebx, [eax + TCP_SOCKET.SND_MAX] |
| cmp ebx, [eax + TCP_SOCKET.SND_UNA] |
| je TCP_send |
| je .send |
| @@: |
| |
| test [eax + TCP_SOCKET.t_force], -1 ;;; |
| jnz TCP_send |
| jnz .send |
| |
| mov ebx, [eax + TCP_SOCKET.max_sndwnd] |
| shr ebx, 1 |
| cmp esi, ebx |
| jae TCP_send |
| jae .send |
| |
| mov ebx, [eax + TCP_SOCKET.SND_NXT] |
| cmp ebx, [eax + TCP_SOCKET.SND_MAX] |
| jb TCP_send |
| jb .send |
| |
| .len_zero: |
| |
| 233,9 → 232,10 |
|---|
| mov edi, [eax + TCP_SOCKET.t_maxseg] |
| shl edi, 1 |
| |
| ; cmp ebx, edi |
| ; jae TCP_send |
| cmp ebx, edi |
| jae .send |
| |
| shl ebx, 1 |
| ; cmp ebx, [eax + TCP_SOCKET.] ;;; TODO: check with receive buffer high water mark |
| ; jae TCP_send |
| |
| 244,17 → 244,15 |
|---|
| ;-------------------------- |
| ; Should a segment be sent? (174) |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_output: 174\n" |
| |
| test [eax + TCP_SOCKET.t_flags], TF_ACKNOW ; we need to ACK |
| jnz TCP_send |
| jnz .send |
| |
| test dl, TH_SYN + TH_RST ; we need to send a SYN or RST |
| jnz TCP_send |
| jnz .send |
| |
| mov ebx, [eax + TCP_SOCKET.SND_UP] ; when urgent pointer is beyond start of send bufer |
| cmp ebx, [eax + TCP_SOCKET.SND_UNA] |
| ja TCP_send |
| ja .send |
| |
| test dl, TH_FIN |
| jz .enter_persist ; no reason to send, enter persist state |
| 262,11 → 260,11 |
|---|
| ; FIN was set, only send if not already sent, or on retransmit |
| |
| test [eax + TCP_SOCKET.t_flags], TF_SENTFIN |
| jz TCP_send |
| jz .send |
| |
| mov ebx, [eax + TCP_SOCKET.SND_NXT] |
| cmp ebx, [eax + TCP_SOCKET.SND_UNA] |
| je TCP_send |
| je .send |
| |
| ;-------------------- |
| ; Enter persist state (191) |
| 302,13 → 300,6 |
|---|
| ret |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| ;----------------------------------------------- |
| ; |
| ; Send a segment (222) |
| 318,8 → 309,7 |
|---|
| ; dl = flags |
| ; |
| ;----------------------------------------------- |
| align 4 |
| TCP_send: |
| .send: |
| |
| DEBUGF DEBUG_NETWORK_VERBOSE, "TCP_send: socket=%x length=%u flags=%x\n", eax, esi, dl |
| |
| 570,7 → 560,13 |
|---|
| ;-------------------- |
| ; Create the checksum |
| |
| xor dx, dx |
| test [ebx + NET_DEVICE.hwacc], NET_HWACC_TCP_IPv4_OUT |
| jnz .checksum_ok |
| |
| TCP_checksum (eax + IP_SOCKET.LocalIP), (eax + IP_SOCKET.RemoteIP) |
| |
| .checksum_ok: |
| mov [esi + TCP_header.Checksum], dx |
| |
| ;---------------- |