forked from KolibriOS/kolibrios
Refactoring of socket.inc
bugfix in ETH_output when sending packets of 60 bytes updates in TCP code git-svn-id: svn://kolibrios.org@1536 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr
parent
9aaa131d1c
commit
718d8df6de
@ -167,6 +167,7 @@ ETH_output:
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.adjust_size:
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mov edx, 60
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test edx, edx ; clear zero flag
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ret
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.out_of_ram:
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@ -35,6 +35,9 @@ virtual at 0
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.options dd ?
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.state dd ?
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.snd_proc dd ?
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.rcv_proc dd ?
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.end:
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end virtual
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@ -261,6 +264,7 @@ s_error:
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ret
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align 4
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sock_sysfn_table:
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dd SOCKET_open ; 0
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dd SOCKET_close ; 1
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@ -288,7 +292,7 @@ sock_sysfn_table:
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align 4
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SOCKET_open:
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DEBUGF 1,"socket_open: domain: %u, type: %u protocol: %x\n", ecx, edx, esi
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DEBUGF 1,"SOCKET_open: domain: %u, type: %u protocol: %x\n", ecx, edx, esi
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call SOCKET_alloc
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jz s_error
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@ -297,17 +301,26 @@ SOCKET_open:
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mov [eax + SOCKET.Type], edx
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mov [eax + SOCKET.Protocol], esi
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mov [esp+32], edi
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mov [esp+32], edi ; return socketnumber
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cmp ecx, AF_INET4
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jnz .no_stream
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jne .no_inet4
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push [IP_LIST] ;;;;
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pop [eax + IP_SOCKET.LocalIP] ;;;;
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push [IP_LIST]
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pop [eax + IP_SOCKET.LocalIP] ; fill in local ip number
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call SOCKET_find_port ; fill in a local port number, application may change it later, or use this one
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cmp edx, IP_PROTO_UDP
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je .udp
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cmp edx, IP_PROTO_TCP
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jnz .no_stream
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je .tcp
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.no_inet4:
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ret
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.tcp:
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mov ebx, eax
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lea eax, [ebx + STREAM_SOCKET.snd]
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@ -316,13 +329,18 @@ SOCKET_open:
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lea eax, [ebx + STREAM_SOCKET.rcv]
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call SOCKET_ring_create
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mov [ebx + SOCKET.snd_proc], SOCKET_send_tcp
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mov [ebx + SOCKET.rcv_proc], SOCKET_receive_tcp
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ret
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.no_stream:
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push edi
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.udp:
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push eax
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init_queue (eax + SOCKET_QUEUE_LOCATION)
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pop edi
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pop eax
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mov [eax + SOCKET.snd_proc], SOCKET_send_udp
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mov [eax + SOCKET.rcv_proc], SOCKET_receive_udp
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ret
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@ -375,22 +393,16 @@ SOCKET_bind:
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mov bx, word [edx + 2]
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test bx, bx
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jz .find_free
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jz .use_preset_port
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call SOCKET_check_port
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; test bx, bx
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jz s_error
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jmp .got_port
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.find_free:
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call SOCKET_find_port
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; test bx, bx
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jz s_error
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.got_port:
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DEBUGF 1,"using local port: %u\n", bx
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mov word [eax + UDP_SOCKET.LocalPort], bx
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.use_preset_port:
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DEBUGF 1,"local ip: %u.%u.%u.%u\n",\
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[eax + IP_SOCKET.LocalIP + 0]:1,[eax + IP_SOCKET.LocalIP + 1]:1,\
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[eax + IP_SOCKET.LocalIP + 2]:1,[eax + IP_SOCKET.LocalIP + 3]:1
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@ -464,14 +476,6 @@ SOCKET_connect:
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mov ebx, dword [edx + 4]
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mov [eax + IP_SOCKET.RemoteIP], ebx
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; check if local port and IP is ok
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cmp [eax + TCP_SOCKET.LocalPort], 0
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jne @f
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call SOCKET_find_port
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@@:
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DEBUGF 1,"local port: %u\n", [eax + TCP_SOCKET.LocalPort]:2
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;;;;;
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mov [eax + TCP_SOCKET.timer_persist], 0
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mov [eax + TCP_SOCKET.t_state], TCB_SYN_SENT
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@ -572,10 +576,10 @@ SOCKET_accept:
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test ebx, ebx
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jz .unlock_err
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dec [eax + TCP_SOCKET.backlog_cur]
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mov eax, [eax + TCP_SOCKET.end + (ebx-1)*4]
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mov [eax + SOCKET.lock], 0
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mov dword [esp+32], 0
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dec [eax + TCP_SOCKET.backlog_cur] ;;;;
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mov eax, [eax + TCP_SOCKET.end + (ebx-1)*4] ;;;;;
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mov [eax + SOCKET.lock], 0 ;;;;
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mov dword [esp+32], 0 ;;;;
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call TCP_output ;;;;;
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@ -617,17 +621,14 @@ SOCKET_close:
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jmp s_error
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.tcp:
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test [eax + TCP_SOCKET.t_state], TCB_SYN_RECEIVED ;;;;;;
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jz .free
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cmp [eax + TCP_SOCKET.t_state], TCB_SYN_RECEIVED ; state must be LISTEN, SYN_SENT or CLOSED
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jl .free
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;;; call TCP_output
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call TCP_output
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mov dword [esp+32], 0
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;;; mov dword [esp+32], 0
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ret
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;;; ret
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; state must be LISTEN, SYN_SENT, CLOSED or maybe even invalid
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; so, we may destroy the socket
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.free:
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call SOCKET_free
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mov dword [esp+32], 0
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@ -649,54 +650,62 @@ SOCKET_close:
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align 4
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SOCKET_receive:
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DEBUGF 1,"socket_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x\n", ecx, edx, esi, edi
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DEBUGF 1,"SOCKET_receive: socknum: %u bufaddr: %x, buflength: %u, flags: %x, ", ecx, edx, esi, edi
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call SOCKET_num_to_ptr
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jz s_error
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cmp [eax + SOCKET.Type], IP_PROTO_TCP ;;;;;;;;
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je .tcp
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jmp [eax + SOCKET.rcv_proc]
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align 4
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SOCKET_receive_udp:
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DEBUGF 1,"type: UDP\n"
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mov ebx, esi
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get_from_queue (eax + SOCKET_QUEUE_LOCATION),\
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SOCKET_QUEUE_SIZE,\
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socket_queue_entry.size,\
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s_error
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; destroys esi and ecx
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mov edi, edx ; addr to buffer
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get_from_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, socket_queue_entry.size, s_error ; destroys esi and ecx
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mov ecx, [esi + socket_queue_entry.data_size]
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DEBUGF 1,"Got %u bytes of data\n", ecx
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cmp ecx, ebx
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jle .large_enough
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DEBUGF 1,"Buffer too small...\n"
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jmp s_error
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jg .too_small
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.large_enough:
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push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later
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push [esi + socket_queue_entry.buf_ptr] ; save the buffer addr so we can clear it later
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mov esi, [esi + socket_queue_entry.data_ptr]
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DEBUGF 1,"Source buffer: %x, real addr: %x\n", [esp], esi
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mov dword[esp+32+4], ecx ; return number of bytes copied in ebx
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mov dword[esp+32+4], ecx ; return number of bytes copied
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; copy the data
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shr ecx, 1
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jnc .nb
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movsb
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.nb: shr ecx, 1
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.nb:
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shr ecx, 1
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jnc .nw
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movsw
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.nw: test ecx, ecx
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.nw:
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test ecx, ecx
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jz .nd
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rep movsd
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.nd:
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; remove the packet ;;; TODO: only if it is empty!!
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.nd:
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call kernel_free
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call kernel_free ; remove the packet
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ret
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.tcp:
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.too_small:
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DEBUGF 1,"Buffer too small...\n"
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jmp s_error
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align 4
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SOCKET_receive_tcp:
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DEBUGF 1,"type: TCP\n"
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mov ecx, esi
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mov edi, edx
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@ -704,7 +713,7 @@ SOCKET_receive:
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call SOCKET_ring_read
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call SOCKET_ring_free
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mov dword[esp+32], ecx ; return number of bytes copied in ebx
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mov dword[esp+32], ecx ; return number of bytes copied
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ret
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@ -724,45 +733,20 @@ SOCKET_receive:
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align 4
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SOCKET_send:
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DEBUGF 1,"socket_send: socknum: %u sockaddr: %x, length: %u, flags: %x\n", ecx, edx, esi, edi
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DEBUGF 1,"SOCKET_send: socknum: %u sockaddr: %x, length: %u, flags: %x, ", ecx, edx, esi, edi
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call SOCKET_num_to_ptr
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jz s_error
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cmp word [eax + SOCKET.Domain], AF_INET4
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je .af_inet4
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jmp [eax + SOCKET.snd_proc]
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jmp s_error
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.af_inet4:
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DEBUGF 1,"af_inet4\n"
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cmp [eax + IP_SOCKET.LocalIP], 0
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jne @f
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mov ebx, [IP_LIST] ;;;;
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mov dword [eax + IP_SOCKET.LocalIP], ebx
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@@:
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align 4
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SOCKET_send_udp:
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cmp [eax + SOCKET.Type], IP_PROTO_TCP
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je .tcp
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cmp [eax + SOCKET.Type], IP_PROTO_UDP
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je .udp
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jmp s_error
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.udp:
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DEBUGF 1,"type: UDP\n"
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; check if local port is valid
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cmp [eax + UDP_SOCKET.LocalPort], 0
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jne @f
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call SOCKET_find_port
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jz s_error
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; Now, send the packet
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@@:
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mov ecx, esi
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mov esi, edx
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@ -771,24 +755,19 @@ SOCKET_send:
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mov dword [esp+32], 0
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ret
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.tcp:
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align 4
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SOCKET_send_tcp:
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DEBUGF 1,"type: TCP\n"
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; check if local port is valid
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cmp [eax + TCP_SOCKET.LocalPort], 0
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jne @f
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call SOCKET_find_port
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jz s_error
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@@:
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push eax
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mov ecx, esi
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mov esi, edx
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add eax, STREAM_SOCKET.snd
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call SOCKET_ring_write
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pop eax
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call TCP_output
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mov [esp+32], eax
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@ -814,7 +793,7 @@ SOCKET_send:
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align 4
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SOCKET_get_opt:
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DEBUGF 1,"socket_get_opt\n"
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DEBUGF 1,"SOCKET_get_opt\n"
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call SOCKET_num_to_ptr
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jz s_error
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@ -894,7 +873,7 @@ SOCKET_debug:
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align 4
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SOCKET_find_port:
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DEBUGF 1,"socket_find_free_port\n"
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DEBUGF 1,"SOCKET_find_port\n"
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push ebx esi ecx
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@ -956,7 +935,7 @@ SOCKET_find_port:
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align 4
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SOCKET_check_port:
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DEBUGF 1,"socket_check_port\n"
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DEBUGF 1,"SOCKET_check_port\n"
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mov ecx, [eax + SOCKET.Type]
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mov esi, net_sockets
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@ -987,7 +966,7 @@ SOCKET_check_port:
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;
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; SOCKET_input
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;
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; Updates a socket with received data
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; Updates a (stateless) socket with received data
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;
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; Note: the mutex should already be set !
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;
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@ -1004,16 +983,13 @@ SOCKET_check_port:
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align 4
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SOCKET_input:
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DEBUGF 1,"socket_input: socket=%x, data=%x size=%u\n", eax, esi, ecx
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DEBUGF 1,"SOCKET_input: socket=%x, data=%x size=%u\n", eax, esi, ecx
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mov dword[esp+4], ecx
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push esi
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mov esi, esp
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add_to_queue (eax + SOCKET_QUEUE_LOCATION),\
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SOCKET_QUEUE_SIZE,\
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socket_queue_entry.size,\
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SOCKET_input.full
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add_to_queue (eax + SOCKET_QUEUE_LOCATION), SOCKET_QUEUE_SIZE, socket_queue_entry.size, SOCKET_input.full
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DEBUGF 1,"Queued packet successfully\n"
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add esp, socket_queue_entry.size
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@ -1079,15 +1055,15 @@ SOCKET_ring_write:
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shr ecx, 1
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jnc .nb
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movsb
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.nb:
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.nb:
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shr ecx, 1
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jnc .nw
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movsw
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.nw:
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.nw:
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test ecx, ecx
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jz .nd
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rep movsd
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.nd:
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.nd:
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pop ecx
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cmp edi, [eax + RING_BUFFER.end_ptr]
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@ -1145,15 +1121,15 @@ SOCKET_ring_read:
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shr ecx, 1
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jnc .nb
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movsb
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.nb:
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.nb:
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shr ecx, 1
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jnc .nw
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movsw
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.nw:
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.nw:
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test ecx, ecx
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jz .nd
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rep movsd
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.nd:
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.nd:
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pop ecx
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; .no_data_at_all:
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@ -1181,7 +1157,7 @@ SOCKET_ring_read:
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align 4
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SOCKET_ring_free:
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DEBUGF 1,"Trying to free %u bytes of data from ring %x\n", ecx, eax
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DEBUGF 1,"SOCKET_ring_free: %u bytes from ring %x\n", ecx, eax
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sub [eax + RING_BUFFER.size], ecx
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jl .sumthinwong
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@ -1213,12 +1189,12 @@ SOCKET_ring_free:
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align 4
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SOCKET_notify_owner:
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DEBUGF 1,"socket_notify_owner\n"
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DEBUGF 1,"SOCKET_notify_owner: %x\n", eax
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call SOCKET_check
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jz .error
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push ecx eax esi
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push ecx esi
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; socket exists, now try to flag an event to the application
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@ -1243,10 +1219,11 @@ SOCKET_notify_owner:
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or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK
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mov [check_idle_semaphore], 200
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DEBUGF 1,"owner notified\n"
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DEBUGF 1,"SOCKET_notify_owner: succes!\n"
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.error2:
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pop esi eax ecx
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pop esi ecx
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.error:
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ret
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@ -1284,18 +1261,22 @@ SOCKET_alloc:
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rep stosd
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pop edi eax
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; set send-and receive procedures to return -1
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mov [eax + SOCKET.snd_proc], s_error
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mov [eax + SOCKET.rcv_proc], s_error
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; find first free socket number and use it
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mov ebx, net_sockets
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xor ecx, ecx
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.next_socket_number:
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inc ecx
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mov ebx, net_sockets
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.next_socket:
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mov ebx, [ebx + SOCKET.NextPtr]
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test ebx, ebx
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jz .last_socket
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cmp [ebx + SOCKET.Number], ecx
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jne .next_socket
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mov ebx, net_sockets
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jmp .next_socket_number
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.last_socket:
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@ -1320,7 +1301,7 @@ SOCKET_alloc:
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call wait_mutex
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sub ebx, SOCKET.lock
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mov [ebx + SOCKET.PrevPtr], eax
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mov [ebx + SOCKET.lock], 0
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mov [ebx + SOCKET.lock], 0 ; and unlock it again
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@@:
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mov [net_sockets + SOCKET.NextPtr], eax
|
||||
@ -1344,7 +1325,7 @@ SOCKET_alloc:
|
||||
align 4
|
||||
SOCKET_free:
|
||||
|
||||
DEBUGF 1, "socket_free: %x\n", eax
|
||||
DEBUGF 1, "SOCKET_free: %x\n", eax
|
||||
|
||||
call SOCKET_check
|
||||
jz .error
|
||||
@ -1356,14 +1337,16 @@ SOCKET_free:
|
||||
DEBUGF 1, "freeing socket..\n"
|
||||
|
||||
cmp [eax + SOCKET.Domain], AF_INET4
|
||||
jnz .no_stream
|
||||
jnz .no_tcp
|
||||
|
||||
cmp [eax + SOCKET.Type], IP_PROTO_TCP
|
||||
jnz .no_stream
|
||||
jnz .no_tcp
|
||||
|
||||
stdcall kernel_free, [eax + STREAM_SOCKET.rcv + RING_BUFFER.start_ptr]
|
||||
stdcall kernel_free, [eax + STREAM_SOCKET.snd + RING_BUFFER.start_ptr]
|
||||
.no_stream:
|
||||
mov ebx, eax
|
||||
stdcall kernel_free, [ebx + STREAM_SOCKET.rcv + RING_BUFFER.start_ptr]
|
||||
stdcall kernel_free, [ebx + STREAM_SOCKET.snd + RING_BUFFER.start_ptr]
|
||||
mov eax, ebx
|
||||
.no_tcp:
|
||||
|
||||
push eax ; this will be passed to kernel_free
|
||||
mov ebx, [eax + SOCKET.NextPtr]
|
||||
@ -1437,7 +1420,7 @@ SOCKET_fork:
|
||||
align 4
|
||||
SOCKET_num_to_ptr:
|
||||
|
||||
DEBUGF 1,"socket_num_to_ptr: %u ", ecx
|
||||
DEBUGF 1,"SOCKET_num_to_ptr: %u ", ecx
|
||||
|
||||
mov eax, net_sockets
|
||||
|
||||
@ -1469,7 +1452,7 @@ SOCKET_num_to_ptr:
|
||||
align 4
|
||||
SOCKET_ptr_to_num:
|
||||
|
||||
DEBUGF 1,"socket_ptr_to_num: %x ", eax
|
||||
DEBUGF 1,"SOCKET_ptr_to_num: %x ", eax
|
||||
|
||||
call SOCKET_check
|
||||
jz .error
|
||||
@ -1496,7 +1479,7 @@ SOCKET_ptr_to_num:
|
||||
align 4
|
||||
SOCKET_check:
|
||||
|
||||
DEBUGF 1,"socket_check\n"
|
||||
DEBUGF 1,"SOCKET_check: %x\n", eax
|
||||
|
||||
push ebx
|
||||
mov ebx, net_sockets
|
||||
@ -1530,7 +1513,7 @@ SOCKET_check:
|
||||
align 4
|
||||
SOCKET_check_owner:
|
||||
|
||||
DEBUGF 1,"socket_check_owner\n"
|
||||
DEBUGF 1,"SOCKET_check_owner: %x\n", eax
|
||||
|
||||
push ebx
|
||||
mov ebx, [TASK_BASE]
|
||||
@ -1558,7 +1541,7 @@ SOCKET_check_owner:
|
||||
align 4
|
||||
SOCKET_process_end:
|
||||
|
||||
DEBUGF 1,"socket_process_end: %x\n", eax
|
||||
DEBUGF 1,"SOCKET_process_end: %x\n", eax
|
||||
|
||||
push ebx
|
||||
mov ebx, net_sockets
|
||||
|
||||
@ -90,20 +90,6 @@ struct TCP_segment
|
||||
.Data: ; ..or options
|
||||
ends
|
||||
|
||||
struct tcp_in_queue_entry
|
||||
.data_ptr dd ?
|
||||
.data_size dd ?
|
||||
.offset dd ?
|
||||
.size:
|
||||
ends
|
||||
|
||||
struct tcp_out_queue_entry
|
||||
.data_ptr dd ?
|
||||
.data_size dd ?
|
||||
|
||||
.size:
|
||||
ends
|
||||
|
||||
align 4
|
||||
uglobal
|
||||
TCP_segments_tx rd IP_MAX_INTERFACES
|
||||
@ -557,36 +543,24 @@ TCP_input:
|
||||
cmp [ebx + TCP_SOCKET.t_state], TCB_ESTABLISHED
|
||||
jnz .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"1\n"
|
||||
|
||||
test [edx + TCP_segment.Flags], TH_SYN + TH_FIN + TH_RST + TH_URG
|
||||
jnz .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"2\n"
|
||||
|
||||
test [edx + TCP_segment.Flags], TH_ACK
|
||||
jz .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"3\n"
|
||||
|
||||
mov eax, [edx + TCP_segment.SequenceNumber]
|
||||
cmp eax, [ebx + TCP_SOCKET.RCV_NXT]
|
||||
jne .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"4\n"
|
||||
|
||||
;; movzx eax, [edx + TCP_segment.Window] ;;;;; (should use pre-calculated value isntead: todo: figure out where to store it)
|
||||
;; cmp eax, [ebx + TCP_SOCKET.SND_WND]
|
||||
;; jne .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"5\n"
|
||||
movzx eax, [edx + TCP_segment.Window] ;;;;; (should use pre-calculated value instead: todo: figure out where to store it)
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_WND]
|
||||
jne .not_uni_xfer
|
||||
|
||||
mov eax, [ebx + TCP_SOCKET.SND_NXT]
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_MAX]
|
||||
jne .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"6\n"
|
||||
|
||||
;---------------------------------------
|
||||
; check if we are sender in the uni-xfer
|
||||
|
||||
@ -596,23 +570,17 @@ TCP_input:
|
||||
test ecx, ecx
|
||||
jnz .not_sender
|
||||
|
||||
DEBUGF 1,"7\n"
|
||||
|
||||
; - The congestion window is greater than or equal to the current send window.
|
||||
; This test is true only if the window is fully open, that is, the connection is not in the middle of slow start or congestion avoidance.
|
||||
mov eax, [ebx + TCP_SOCKET.SND_CWND]
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_WND]
|
||||
jl .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"8\n"
|
||||
|
||||
; - The acknowledgment field in the segment is less than or equal to the maximum sequence number sent.
|
||||
mov eax, [edx + TCP_segment.AckNumber]
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_MAX]
|
||||
jg .not_uni_xfer
|
||||
|
||||
DEBUGF 1,"9\n"
|
||||
|
||||
; - The acknowledgment field in the segment is greater than the largest unacknowledged sequence number.
|
||||
sub eax, [ebx + TCP_SOCKET.SND_UNA]
|
||||
jle .not_uni_xfer
|
||||
@ -625,11 +593,15 @@ TCP_input:
|
||||
; Update RTT estimators
|
||||
|
||||
; Delete acknowledged bytes from send buffer
|
||||
; notice how ecx already holds number of bytes ack-ed
|
||||
|
||||
mov ecx, eax
|
||||
lea eax, [ebx + STREAM_SOCKET.snd]
|
||||
call SOCKET_ring_free
|
||||
|
||||
; update window pointers
|
||||
mov eax, [edx + TCP_segment.AckNumber]
|
||||
dec eax
|
||||
mov [ebx + TCP_SOCKET.SND_WL1], eax
|
||||
|
||||
; Stop retransmit timer
|
||||
mov [ebx + TCP_SOCKET.timer_ack], 0
|
||||
|
||||
@ -637,10 +609,12 @@ TCP_input:
|
||||
mov eax, ebx
|
||||
call SOCKET_notify_owner
|
||||
|
||||
; Generate more output
|
||||
call TCP_output
|
||||
|
||||
jmp .drop
|
||||
;; Generate more output
|
||||
;; mov eax, ebx
|
||||
;; call TCP_output
|
||||
;;
|
||||
;; jmp .drop
|
||||
jmp .step6
|
||||
|
||||
;-------------------------------------------------
|
||||
; maybe we are the receiver in the uni-xfer then..
|
||||
@ -648,8 +622,6 @@ TCP_input:
|
||||
.not_sender:
|
||||
; - The amount of data in the segment is greater than 0 (data count is in ecx)
|
||||
|
||||
DEBUGF 1,"10\n"
|
||||
|
||||
; - The acknowledgment field equals the largest unacknowledged sequence number. This means no data is acknowledged by this segment.
|
||||
mov eax, [edx + TCP_segment.AckNumber]
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_UNA]
|
||||
@ -1084,18 +1056,16 @@ align 4
|
||||
|
||||
;;;;;
|
||||
|
||||
.ack_dup:
|
||||
|
||||
DEBUGF 1,"Duplicate ACK\n"
|
||||
|
||||
;;;;
|
||||
|
||||
.ack_nodup:
|
||||
|
||||
;;;; 887
|
||||
|
||||
DEBUGF 1,"New ACK\n"
|
||||
|
||||
|
||||
|
||||
.ack_dup:
|
||||
|
||||
;;;;
|
||||
|
||||
;-------------------------------------------------
|
||||
; If the congestion window was inflated to account
|
||||
; for the other side's cached packets, retrace it
|
||||
@ -1125,12 +1095,26 @@ align 4
|
||||
;------------------------------------------
|
||||
; Remove acknowledged data from send buffer
|
||||
|
||||
push ecx
|
||||
mov ecx, [edx + TCP_segment.AckNumber] ;;;
|
||||
sub ecx, [ebx + TCP_SOCKET.SND_UNA] ;;;
|
||||
pusha
|
||||
; Delete acknowledged bytes from send buffer
|
||||
mov ecx, [edx + TCP_segment.AckNumber]
|
||||
sub ecx, [ebx + TCP_SOCKET.SND_UNA]
|
||||
lea eax, [ebx + STREAM_SOCKET.snd]
|
||||
call SOCKET_ring_free ;;;; 943 - 956
|
||||
pop ecx
|
||||
call SOCKET_ring_free
|
||||
popa
|
||||
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; code missing (943?)
|
||||
|
||||
mov eax, [edx + TCP_segment.AckNumber]
|
||||
mov [ebx + TCP_SOCKET.SND_UNA], eax
|
||||
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_NXT]
|
||||
jl @f
|
||||
mov [ebx + TCP_SOCKET.SND_NXT], eax
|
||||
@@:
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
|
||||
;---------------------------------------
|
||||
; Wake up process waiting on send buffer
|
||||
@ -1156,73 +1140,89 @@ align 4
|
||||
dd ._1010 ;TCB_TIMED_WAIT
|
||||
|
||||
|
||||
._963:
|
||||
._963:
|
||||
|
||||
|
||||
jmp .step6
|
||||
|
||||
|
||||
._958:
|
||||
._958:
|
||||
|
||||
jmp .step6
|
||||
|
||||
._999:
|
||||
._999:
|
||||
|
||||
jmp .step6
|
||||
|
||||
|
||||
._1010:
|
||||
._1010:
|
||||
|
||||
jmp .step6
|
||||
|
||||
|
||||
|
||||
align 4
|
||||
.step6:
|
||||
.step6:
|
||||
|
||||
DEBUGF 1,"step 6\n"
|
||||
|
||||
;--------------------------
|
||||
; update window information
|
||||
;----------------------------------------------
|
||||
; check if we need to update window information
|
||||
|
||||
test [edx + TCP_segment.Flags], TH_ACK
|
||||
jz .no_window_update
|
||||
|
||||
mov eax, [ebx + TCP_SOCKET.SND_WL1]
|
||||
cmp eax, [edx + TCP_segment.SequenceNumber]
|
||||
jl .update_window
|
||||
jg @f
|
||||
|
||||
;;;; 1021
|
||||
mov eax, [ebx + TCP_SOCKET.SND_WL2]
|
||||
cmp eax, [edx + TCP_segment.AckNumber]
|
||||
jl .update_window
|
||||
jg .no_window_update
|
||||
@@:
|
||||
|
||||
mov eax, [ebx + TCP_SOCKET.SND_WL2] ;;;;
|
||||
cmp eax, [edx + TCP_segment.AckNumber]
|
||||
jne .no_window_update
|
||||
|
||||
movzx eax, [edx + TCP_segment.Window]
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_WND]
|
||||
jle .no_window_update
|
||||
|
||||
.update_window:
|
||||
|
||||
DEBUGF 1,"Updating window\n"
|
||||
|
||||
;----------------------------------
|
||||
; Keep track of pure window updates
|
||||
|
||||
test ecx, ecx
|
||||
jz @f
|
||||
; test ecx, ecx
|
||||
; jz @f
|
||||
;
|
||||
; mov eax, [ebx + TCP_SOCKET.SND_WL2]
|
||||
; cmp eax, [edx + TCP_segment.AckNumber]
|
||||
; jne @f
|
||||
;
|
||||
; ;; mov eax, tiwin
|
||||
; cmp eax, [ebx + TCP_SOCKET.SND_WND]
|
||||
; jle @f
|
||||
;
|
||||
; ;;; update stats
|
||||
;
|
||||
; @@:
|
||||
|
||||
mov eax, [ebx + TCP_SOCKET.SND_WL2]
|
||||
cmp eax, [edx + TCP_segment.AckNumber]
|
||||
jne @f
|
||||
|
||||
;; mov eax, tiwin
|
||||
cmp eax, [ebx + TCP_SOCKET.SND_WND]
|
||||
jle @f
|
||||
|
||||
;;; update stats
|
||||
|
||||
@@:
|
||||
|
||||
;; mov eax, incoming window
|
||||
movzx eax, [edx + TCP_segment.Window] ;;; FIXME: use pre-calculated value instead!
|
||||
cmp eax, [ebx + TCP_SOCKET.max_sndwnd]
|
||||
jle @f
|
||||
mov [ebx + TCP_SOCKET.max_sndwnd], eax
|
||||
@@:
|
||||
mov [ebx + TCP_SOCKET.SND_WND], eax
|
||||
|
||||
mov eax, [edx + TCP_segment.SequenceNumber]
|
||||
mov [ebx + TCP_SOCKET.SND_WL1], eax
|
||||
push [edx + TCP_segment.SequenceNumber]
|
||||
pop [ebx + TCP_SOCKET.SND_WL1]
|
||||
|
||||
mov eax, [edx + TCP_segment.AckNumber]
|
||||
mov [ebx + TCP_SOCKET.SND_WL2], eax
|
||||
push [edx + TCP_segment.AckNumber]
|
||||
pop [ebx + TCP_SOCKET.SND_WL2]
|
||||
|
||||
;;; needoutput = 1
|
||||
|
||||
@ -1496,8 +1496,6 @@ TCP_pull_out_of_band:
|
||||
; TCP_output
|
||||
;
|
||||
; IN: eax = socket pointer
|
||||
;; esi = ptr to data
|
||||
;; ecx = number of data bytes
|
||||
;
|
||||
; OUT: /
|
||||
;
|
||||
@ -1849,11 +1847,14 @@ TCP_output:
|
||||
; ecx = buffer size
|
||||
; edi = ptr to buffer
|
||||
|
||||
; test ecx, ecx
|
||||
mov eax, [esp+4] ; socket ptr
|
||||
push edx
|
||||
add [eax + TCP_SOCKET.SND_NXT], ecx
|
||||
add eax, STREAM_SOCKET.snd
|
||||
push edx
|
||||
call SOCKET_ring_read
|
||||
pop esi ecx
|
||||
pop esi
|
||||
pop ecx
|
||||
pop eax
|
||||
|
||||
test [esi + TCP_segment.Flags], TH_SYN + TH_FIN
|
||||
@ -1862,8 +1863,6 @@ TCP_output:
|
||||
;;; TODO: update sentfin flag
|
||||
@@:
|
||||
|
||||
;; add [eax + TCP_SOCKET.SND_NXT], ecx
|
||||
|
||||
mov edx, [eax + TCP_SOCKET.SND_NXT]
|
||||
cmp edx, [eax + TCP_SOCKET.SND_MAX]
|
||||
jle @f
|
||||
@ -1893,7 +1892,7 @@ TCP_output:
|
||||
.fail:
|
||||
pop ecx
|
||||
add esp, ecx
|
||||
add esp, 4+4+8+4
|
||||
add esp, 4+8
|
||||
DEBUGF 1,"TCP_output: failed\n"
|
||||
ret
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user