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Better blocking sockets, preparing for some API changes.

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git-svn-id: svn://kolibrios.org@3257 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2013-02-19 16:56:54 +00:00
parent 3622285549
commit 89bfe5f5d6
4 changed files with 138 additions and 89 deletions
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2
kernel/branches/net/network/IPv4.inc
View File

@ -225,7 +225,7 @@ IPv4_input: ; TODO: add IPv4
call NET_ptr_to_num
shl edi, 2
; check if it matches local ip
; check if it matches local ip (Using RFC1122 strong end system model)
mov eax, [edx + IPv4_header.DestinationAddress]
cmp eax, [IP_LIST+edi]

184
kernel/branches/net/network/socket.inc
View File

@ -227,28 +227,6 @@ macro SOCKET_init {
}
;-----------------------------------------------------------------
;
; SOCKET_block
;
;-----------------------------------------------------------------
macro SOCKET_block socket, loop, done {
test [socket + SOCKET.options], SO_BLOCK ; Is this a blocking socket?
jz done ; No, return immediately
pusha
mov eax, EVENT_NETWORK
mov ebx, 1337 ; UID: ????
call wait_event
popa
jmp loop
}
;-----------------------------------------------------------------
;
; Socket API (function 74)
@ -307,6 +285,12 @@ SOCKET_open:
mov [esp+32], edi ; return socketnumber
DEBUGF 2,"socknum=%u\n", edi
; push edx
; and edx, SO_NONBLOCK
or [eax + SOCKET.options], SO_NONBLOCK ;edx
; pop edx
; and edx, not SO_NONBLOCK
mov [eax + SOCKET.Domain], ecx
mov [eax + SOCKET.Type], edx
mov [eax + SOCKET.Protocol], esi
@ -711,7 +695,11 @@ SOCKET_accept:
ret
.block:
SOCKET_block eax, .loop, s_error
test [eax + SOCKET.options], SO_NONBLOCK
jnz s_error
call SOCKET_block
jmp .loop
;-----------------------------------------------------------------
;
@ -832,22 +820,12 @@ SOCKET_receive_dgram:
jmp s_error
.block:
SOCKET_block eax, .loop, s_error
test [eax + SOCKET.options], SO_NONBLOCK
jnz s_error
align 4
SOCKET_receive_local:
call SOCKET_block
jmp .loop
; does this socket have a PID yet?
cmp [eax + SOCKET.PID], 0
jne @f
; Change PID to that of current process
mov ebx, [TASK_BASE]
mov ebx, [ebx + TASKDATA.pid]
mov [eax + SOCKET.PID], ebx
@@:
mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream
align 4
SOCKET_receive_stream:
@ -857,10 +835,10 @@ SOCKET_receive_stream:
mov ecx, esi
mov edi, edx
xor edx, edx
add eax, STREAM_SOCKET.rcv
.loop:
cmp [eax + RING_BUFFER.size], 0
cmp [eax + STREAM_SOCKET.rcv + RING_BUFFER.size], 0
je .block
add eax, STREAM_SOCKET.rcv
call SOCKET_ring_read
call SOCKET_ring_free
@ -868,7 +846,11 @@ SOCKET_receive_stream:
ret
.block:
SOCKET_block (eax - STREAM_SOCKET.rcv), .loop, s_error
test [eax + SOCKET.options], SO_NONBLOCK
jnz s_error
call SOCKET_block
jmp .loop
;-----------------------------------------------------------------
@ -967,6 +949,8 @@ SOCKET_send_pppoe:
align 4
SOCKET_send_local:
DEBUGF 1,"SOCKET_send: LOCAL\n"
; does this socket have a PID yet?
cmp [eax + SOCKET.PID], 0
jne @f
@ -976,12 +960,6 @@ SOCKET_send_local:
mov ebx, [ebx + TASKDATA.pid]
mov [eax + SOCKET.PID], ebx
@@:
mov [eax + SOCKET.snd_proc], SOCKET_send_local_
align 4
SOCKET_send_local_:
DEBUGF 1,"SOCKET_send: LOCAL\n"
; get the other side's socket and check if it still exists
mov eax, [eax + SOCKET.device]
@ -998,7 +976,7 @@ SOCKET_send_local_:
mov [esp+32], ecx
; and notify the other end
call SOCKET_notify_owner
call SOCKET_notify
ret
@ -1114,13 +1092,13 @@ SOCKET_set_opt:
cmp dword [edx+8], 0
je .unblock
or [eax + SOCKET.options], SO_BLOCK
and [eax + SOCKET.options], not SO_NONBLOCK
mov dword [esp+32], 0 ; success!
ret
.unblock:
and [eax + SOCKET.options], not SO_BLOCK
or [eax + SOCKET.options], SO_NONBLOCK
mov dword [esp+32], 0 ; success!
ret
@ -1151,7 +1129,7 @@ SOCKET_pair:
mov [eax + SOCKET.Type], SOCK_STREAM
mov [eax + SOCKET.Protocol], 0 ;;; CHECKME
mov [eax + SOCKET.snd_proc], SOCKET_send_local
mov [eax + SOCKET.rcv_proc], SOCKET_receive_local
mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream
mov ebx, eax
call SOCKET_alloc
@ -1162,7 +1140,7 @@ SOCKET_pair:
mov [eax + SOCKET.Type], SOCK_STREAM
mov [eax + SOCKET.Protocol], 0 ;;; CHECKME
mov [eax + SOCKET.snd_proc], SOCKET_send_local
mov [eax + SOCKET.rcv_proc], SOCKET_receive_local
mov [eax + SOCKET.rcv_proc], SOCKET_receive_stream
; Link the two sockets to eachother
mov [eax + SOCKET.device], ebx
@ -1375,7 +1353,7 @@ SOCKET_input:
call mutex_unlock
popa
jmp SOCKET_notify_owner
jmp SOCKET_notify
.full:
DEBUGF 2,"SOCKET_input: socket %x is full!\n", eax
@ -1587,7 +1565,43 @@ SOCKET_ring_free:
;-----------------------------------------------------------------
;
; SOCKET_notify_owner
; SOCKET_block
;
; Suspends the thread attached to a socket
;
; IN: eax = socket ptr
; OUT: /
;
;-----------------------------------------------------------------
align 4
SOCKET_block:
DEBUGF 1,"SOCKET_block: %x\n", eax
pushf
cli
; Set the 'socket is blocked' flag
or [eax + SOCKET.state], SS_BLOCKED
; Suspend the thread
push edx
mov edx, [TASK_BASE]
DEBUGF 1,"SOCKET_block: suspending PID: %u\n", [edx + TASKDATA.pid]
mov [edx + TASKDATA.state], 1 ; Suspended
pop edx
call change_task
popf
DEBUGF 1,"SOCKET_block: continueing\n"
ret
;-----------------------------------------------------------------
;
; SOCKET_notify
;
; notify's the owner of a socket that something happened
;
@ -1596,20 +1610,27 @@ SOCKET_ring_free:
;
;-----------------------------------------------------------------
align 4
SOCKET_notify_owner:
SOCKET_notify:
DEBUGF 1,"SOCKET_notify_owner: %x\n", eax
DEBUGF 1,"SOCKET_notify: %x\n", eax
call SOCKET_check
jz .error
test [eax + SOCKET.state], SS_BLOCKED
jnz .unblock
test [eax + SOCKET.options], SO_NONBLOCK
jz .error
push eax ecx esi
; socket exists, now try to flag an event to the application
; socket exists and is of non blocking type.
; We'll try to flag an event to the thread
mov eax, [eax + SOCKET.PID]
test eax, eax
jz .error2
jz .done
mov ecx, 1
mov esi, TASK_DATA + TASKDATA.pid
@ -1620,23 +1641,48 @@ SOCKET_notify_owner:
add esi, 0x20
cmp ecx, [TASK_COUNT]
jbe .next_pid
; PID not found, TODO: close socket!
jmp .error2
jmp .done
.found_pid:
shl ecx, 8
or [ecx + SLOT_BASE + APPDATA.event_mask], EVENT_NETWORK
mov [check_idle_semaphore], 200
mov [check_idle_semaphore], 200 ; What does this mean??
DEBUGF 1,"SOCKET_notify_owner: succes!\n"
DEBUGF 1,"SOCKET_notify: Raised a network event!\n"
.error2:
jmp .done
.unblock:
push eax ecx esi
; Clear the 'socket is blocked' flag
and [eax + SOCKET.state], not SS_BLOCKED
; Find the thread's TASK_DATA
mov eax, [eax + SOCKET.PID]
test eax, eax
jz .error
xor ecx, ecx
inc ecx
mov esi, TASK_DATA
.next:
cmp [esi + TASKDATA.pid], eax
je .found
inc ecx
add esi, 0x20
cmp ecx, [TASK_COUNT]
jbe .next
jmp .error
.found:
; Run the thread
mov [esi + TASKDATA.state], 0 ; Running
DEBUGF 1,"SOCKET_notify: Unblocked socket!\n"
.done:
pop esi ecx eax
.error:
ret
@ -1966,7 +2012,7 @@ SOCKET_check_owner:
push ebx
mov ebx, [TASK_BASE]
mov ebx, [ecx + TASKDATA.pid]
mov ebx, [ebx + TASKDATA.pid]
cmp [eax + SOCKET.PID], ebx
pop ebx
@ -2050,7 +2096,7 @@ SOCKET_is_connecting:
and [eax + SOCKET.options], not (SS_ISCONNECTED + SS_ISDISCONNECTING + SS_ISCONFIRMING)
or [eax + SOCKET.options], SS_ISCONNECTING
jmp SOCKET_notify_owner
jmp SOCKET_notify
@ -2071,7 +2117,7 @@ SOCKET_is_connected:
and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISDISCONNECTING + SS_ISCONFIRMING)
or [eax + SOCKET.options], SS_ISCONNECTED
jmp SOCKET_notify_owner
jmp SOCKET_notify
@ -2093,7 +2139,7 @@ SOCKET_is_disconnecting:
and [eax + SOCKET.options], not (SS_ISCONNECTING)
or [eax + SOCKET.options], SS_ISDISCONNECTING + SS_CANTRCVMORE + SS_CANTSENDMORE
jmp SOCKET_notify_owner
jmp SOCKET_notify
@ -2114,7 +2160,7 @@ SOCKET_is_disconnected:
and [eax + SOCKET.options], not (SS_ISCONNECTING + SS_ISCONNECTED + SS_ISDISCONNECTING)
or [eax + SOCKET.options], SS_CANTRCVMORE + SS_CANTSENDMORE
jmp SOCKET_notify_owner
jmp SOCKET_notify
;-----------------------------------------------------------------

31
kernel/branches/net/network/stack.inc
View File

@ -79,27 +79,30 @@ SO_REUSEPORT = 1 shl 7
SO_USELOOPBACK = 1 shl 8
SO_BINDTODEVICE = 1 shl 9
SO_BLOCK = 1 shl 10
SO_BLOCK = 1 shl 10 ; TO BE REMOVED
SO_NONBLOCK = 1 shl 31
; Socket level
SOL_SOCKET = 0
; Socket States
SS_NOFDREF = 0x001 ; no file table ref any more
SS_ISCONNECTED = 0x002 ; socket connected to a peer
SS_ISCONNECTING = 0x004 ; in process of connecting to peer
SS_ISDISCONNECTING = 0x008 ; in process of disconnecting
SS_CANTSENDMORE = 0x010 ; can't send more data to peer
SS_CANTRCVMORE = 0x020 ; can't receive more data from peer
SS_RCVATMARK = 0x040 ; at mark on input
SS_ISABORTING = 0x080 ; aborting fd references - close()
SS_RESTARTSYS = 0x100 ; restart blocked system calls
SS_ISDISCONNECTED = 0x800 ; socket disconnected from peer
SS_NOFDREF = 0x0001 ; no file table ref any more
SS_ISCONNECTED = 0x0002 ; socket connected to a peer
SS_ISCONNECTING = 0x0004 ; in process of connecting to peer
SS_ISDISCONNECTING = 0x0008 ; in process of disconnecting
SS_CANTSENDMORE = 0x0010 ; can't send more data to peer
SS_CANTRCVMORE = 0x0020 ; can't receive more data from peer
SS_RCVATMARK = 0x0040 ; at mark on input
SS_ISABORTING = 0x0080 ; aborting fd references - close()
SS_RESTARTSYS = 0x0100 ; restart blocked system calls
SS_ISDISCONNECTED = 0x0800 ; socket disconnected from peer
SS_ASYNC = 0x100 ; async i/o notify
SS_ISCONFIRMING = 0x200 ; deciding to accept connection req
SS_MORETOCOME = 0x400
SS_ASYNC = 0x0100 ; async i/o notify
SS_ISCONFIRMING = 0x0200 ; deciding to accept connection req
SS_MORETOCOME = 0x0400
SS_BLOCKED = 0x8000
SOCKET_MAXDATA = 4096*32 ; must be 4096*(power of 2) where 'power of 2' is at least 8

6
kernel/branches/net/network/tcp_input.inc
View File

@ -485,7 +485,7 @@ TCP_process_input:
popa
mov eax, ebx
call SOCKET_notify_owner
call SOCKET_notify
; Generate more output
call TCP_output
@ -521,7 +521,7 @@ TCP_process_input:
call SOCKET_ring_write ; Add the data to the socket buffer
mov eax, ebx
call SOCKET_notify_owner
call SOCKET_notify
or [ebx + TCP_SOCKET.t_flags], TF_DELACK ; Set delayed ack flag
@ -1079,7 +1079,7 @@ TCP_process_input:
pushf ; Why?
mov eax, ebx
call SOCKET_notify_owner
call SOCKET_notify
; Update TCPS