forked from KolibriOS/kolibrios
TCP: improved routing, connect.
git-svn-id: svn://kolibrios.org@6912 a494cfbc-eb01-0410-851d-a64ba20cac60
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@ -1,6 +1,6 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2017. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; Part of the TCP/IP network stack for KolibriOS ;;
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@ -89,42 +89,9 @@ tcp_connect:
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test [eax + SOCKET.state], SS_ISCONNECTED
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jnz .eisconn
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inc [TCPS_connattempt] ; update stats
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push eax edx
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lea ecx, [eax + SOCKET.mutex]
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call mutex_lock
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pop edx eax
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; Fill in local IP
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cmp [eax + IP_SOCKET.LocalIP], 0
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jne @f
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push [IP_LIST + 4] ; FIXME: use correct local IP
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pop [eax + IP_SOCKET.LocalIP]
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; Fill in remote port and IP
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pushw [edx + 2]
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pop [eax + TCP_SOCKET.RemotePort]
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pushd [edx + 4]
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pop [eax + IP_SOCKET.RemoteIP]
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; Find a local port, if user didnt define one
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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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; Start the TCP sequence
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mov [eax + TCP_SOCKET.timer_persist], 0
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mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT
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push [TCP_sequence_num]
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add [TCP_sequence_num], 6400
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pop [eax + TCP_SOCKET.ISS]
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mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init
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tcp_sendseqinit eax
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mov ebx, eax
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lea eax, [ebx + STREAM_SOCKET.snd]
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@ -136,20 +103,75 @@ tcp_connect:
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call socket_ring_create
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test eax, eax
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jz .nomem
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pop edx eax
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push ebx
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lea ecx, [ebx + SOCKET.mutex]
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call mutex_unlock
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; Fill in remote port and IP
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pushw [edx + 2]
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pop [eax + TCP_SOCKET.RemotePort]
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pushd [edx + 4]
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pop [eax + TCP_SOCKET.RemoteIP]
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; Find route to host
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pusha
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push eax
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mov ebx, [eax + TCP_SOCKET.device]
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mov edx, [eax + TCP_SOCKET.LocalIP]
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mov eax, [eax + TCP_SOCKET.RemoteIP]
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call ipv4_route
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test eax, eax
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jz .enoroute
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pop eax
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mov ebx, [NET_DRV_LIST + edi]
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mov [eax + TCP_SOCKET.device], ebx
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mov [eax + TCP_SOCKET.LocalIP], edx
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popa
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; Find a local port, if user didnt define one
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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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; Compute window scaling factor
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push ecx
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xor ecx, ecx
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mov ebx, TCP_max_win
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@@:
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cmp ebx, SOCKET_BUFFER_SIZE
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ja @f
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shl ebx, 1
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inc ecx
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cmp ecx, TCP_max_winshift
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jb @r
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@@:
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mov [eax + TCP_SOCKET.request_r_scale], cl
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pop ecx
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call socket_is_connecting
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inc [TCPS_connattempt]
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mov [eax + TCP_SOCKET.timer_persist], 0
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mov [eax + TCP_SOCKET.t_state], TCPS_SYN_SENT
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mov [eax + TCP_SOCKET.timer_keepalive], TCP_time_keep_init
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push [TCP_sequence_num]
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add [TCP_sequence_num], TCP_ISSINCR/2
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pop [eax + TCP_SOCKET.ISS]
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tcp_sendseqinit eax
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push eax
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lea ecx, [eax + SOCKET.mutex]
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call mutex_unlock
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pop eax
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; Now send the SYN packet to remote end
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push eax
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call tcp_output
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pop eax
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.block:
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test [eax + SOCKET.options], SO_NONBLOCK
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jz .waitforit
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@ -159,6 +181,7 @@ tcp_connect:
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ret
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.nomem:
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pop edx eax
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xor eax, eax
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dec eax
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mov ebx, ENOMEM
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@ -170,6 +193,14 @@ tcp_connect:
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mov ebx, EISCONN
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ret
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.enoroute:
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pop eax
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popa
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xor eax, eax
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dec eax
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mov ebx, EADDRNOTAVAIL
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ret
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.waitforit:
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push eax
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stdcall timer_hs, TCP_time_connect, 0, .timeout, eax
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@ -202,6 +233,5 @@ tcp_connect:
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.established:
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stdcall cancel_timer_hs, [eax + TCP_SOCKET.timer_connect]
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xor eax, eax
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ret
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