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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;; Part of the TCP/IP network stack for KolibriOS ;; |
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7 | ;; ;; |
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8 | ;; Written by hidnplayr@kolibrios.org ;; |
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9 | ;; ;; |
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10 | ;; Based on the code of 4.4BSD ;; |
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11 | ;; ;; |
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12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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13 | ;; Version 2, June 1991 ;; |
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14 | ;; ;; |
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15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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16 | |||
17 | |||
18 | ;------------------------- |
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19 | ; |
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20 | ; TCP_usrclose |
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21 | ; |
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22 | ; Move connection to next state, based on process close. |
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23 | ; |
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24 | ; IN: eax = socket ptr |
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25 | ; |
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26 | ;------------------------- |
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27 | align 4 |
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28 | TCP_usrclosed: |
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29 | |||
30 | DEBUGF 1,"TCP_usrclosed: %x\n", eax |
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31 | |||
32 | push ebx |
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33 | mov ebx, [eax + TCP_SOCKET.t_state] |
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34 | mov ebx, dword [.switch + ebx*4] |
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35 | jmp ebx |
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36 | |||
37 | .switch: |
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38 | |||
39 | dd .close ; TCPS_CLOSED |
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40 | dd .close ; TCPS_LISTEN |
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41 | dd .close ; TCPS_SYN_SENT |
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42 | dd .wait1 ; TCPS_SYN_RECEIVED |
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43 | dd .wait1 ; TCPS_ESTABLISHED |
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44 | dd .last_ack ; TCPS_CLOSE_WAIT |
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45 | dd .ret ; TCPS_FIN_WAIT_1 |
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46 | dd .ret ; TCPS_CLOSING |
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47 | dd .ret ; TCPS_LAST_ACK |
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48 | dd .disc ; TCPS_FIN_WAIT_2 |
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49 | dd .disc ; TCPS_TIMED_WAIT |
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50 | |||
51 | |||
52 | .close: |
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53 | mov [eax + TCP_SOCKET.t_state], TCPS_CLOSED |
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54 | call TCP_close |
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55 | pop ebx |
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56 | ret |
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57 | |||
58 | .wait1: |
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59 | mov [eax + TCP_SOCKET.t_state], TCPS_FIN_WAIT_1 |
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60 | ; TODO: set timer? |
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61 | pop ebx |
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62 | ret |
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63 | |||
64 | .last_ack: |
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65 | mov [eax + TCP_SOCKET.t_state], TCPS_LAST_ACK |
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66 | pop ebx |
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67 | ret |
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68 | |||
69 | .disc: |
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70 | call SOCKET_is_disconnected |
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71 | ; TODO: set timer? |
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72 | .ret: |
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73 | pop ebx |
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74 | ret |
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75 | |||
76 | |||
77 | |||
78 | |||
79 | ;------------------------- |
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80 | ; |
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81 | ; TCP_disconnect |
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82 | ; |
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83 | ; IN: eax = socket ptr |
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84 | ; OUT: eax = socket ptr |
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85 | ; |
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86 | ;------------------------- |
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87 | align 4 |
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88 | TCP_disconnect: |
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89 | |||
90 | DEBUGF 1,"TCP_disconnect: %x\n", eax |
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91 | |||
92 | cmp [eax + TCP_SOCKET.t_state], TCPS_ESTABLISHED |
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93 | jb TCP_close |
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94 | |||
95 | |||
96 | ; TODO: implement LINGER ? |
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97 | |||
98 | call SOCKET_is_disconnecting |
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99 | call TCP_usrclosed |
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100 | call TCP_output |
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101 | |||
102 | ret |