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| 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 2 | ;; ;; |
2 | ;; ;; |
| 3 | ;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
| 4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
| 5 | ;; ;; |
5 | ;; ;; |
| 6 | ;; loopback.inc ;; |
6 | ;; loopback.inc ;; |
| 7 | ;; ;; |
7 | ;; ;; |
| 8 | ;; LoopBack device for KolibriOS ;; |
8 | ;; LoopBack device for KolibriOS ;; |
| Line 17... | Line 17... | ||
| 17 | $Revision: 2891 $ |
17 | $Revision: 2891 $ |
| Line 18... | Line 18... | ||
| 18 | 18 | ||
| Line 19... | Line 19... | ||
| 19 | iglobal |
19 | iglobal |
| - | 20 | ||
| 20 | 21 | LOOPBACK_DEVICE: |
|
| 21 | LOOPBACK_DEVICE: |
22 | |
| 22 | .type dd NET_TYPE_LOOPBACK |
23 | .device_type dd NET_DEVICE_LOOPBACK |
| Line 23... | Line 24... | ||
| 23 | .mtu dd 4096 |
24 | .mtu dd 4096 |
| 24 | .name dd .namestr |
25 | .name dd .namestr |
| Line 30... | Line 31... | ||
| 30 | .bytes_tx dq 0 |
31 | .bytes_tx dq 0 |
| 31 | .bytes_rx dq 0 |
32 | .bytes_rx dq 0 |
| 32 | .packets_tx dd 0 |
33 | .packets_tx dd 0 |
| 33 | .packets_rx dd 0 |
34 | .packets_rx dd 0 |
| Line -... | Line 35... | ||
| - | 35 | ||
| - | 36 | .link_state dd -1 |
|
| - | 37 | .hwacc dd 0 |
|
| 34 | 38 | ||
| Line 35... | Line 39... | ||
| 35 | .namestr db 'loopback', 0 |
39 | .namestr db 'loopback', 0 |
| 36 | 40 | ||
| Line 37... | Line 41... | ||
| 37 | .dummy_fn: |
41 | .dummy_fn: |
| Line -... | Line 42... | ||
| - | 42 | ret |
|
| - | 43 | ||
| - | 44 | endg |
|
| - | 45 | ||
| - | 46 | ||
| - | 47 | macro LOOP_init { |
|
| - | 48 | local .fail |
|
| - | 49 | ||
| - | 50 | mov ebx, LOOPBACK_DEVICE |
|
| - | 51 | call NET_add_device |
|
| - | 52 | ||
| - | 53 | cmp eax, -1 |
|
| - | 54 | je .fail |
|
| - | 55 | ||
| - | 56 | mov [IP_LIST], 127 + 1 shl 24 |
|
| - | 57 | mov [SUBNET_LIST], 255 |
|
| - | 58 | mov [BROADCAST_LIST], 0xffffff00 + 127 |
|
| 38 | ret |
59 | |
| 39 | 60 | .fail: |
|
| 40 | endg |
61 | } |
| 41 | 62 | ||
| 42 | ;----------------------------------------------------------------- |
63 | ;----------------------------------------------------------------- |
| Line 57... | Line 78... | ||
| 57 | 78 | ||
| 58 | push ebx |
79 | push ebx |
| 59 | push ecx |
80 | push ecx |
| Line -... | Line 81... | ||
| - | 81 | push eax |
|
| - | 82 | ||
| - | 83 | inc [LOOPBACK_DEVICE.packets_rx] |
|
| - | 84 | add dword[LOOPBACK_DEVICE.bytes_rx], ecx |
|
| 60 | push eax |
85 | adc dword[LOOPBACK_DEVICE.bytes_rx + 4], 0 |
| 61 | 86 | ||
| 62 | DEBUGF DEBUG_NETWORK_VERBOSE, "LOOP_input: size=%u\n", ecx |
87 | DEBUGF DEBUG_NETWORK_VERBOSE, "LOOP_input: size=%u\n", ecx |
| 63 | lea edx, [eax + 2] |
88 | lea edx, [eax + 4] |
| Line 64... | Line 89... | ||
| 64 | mov ax, word[eax] |
89 | mov eax, dword[eax] |
| 65 | mov ebx, LOOPBACK_DEVICE |
90 | mov ebx, LOOPBACK_DEVICE |
| Line 66... | Line 91... | ||
| 66 | 91 | ||
| Line 67... | Line 92... | ||
| 67 | cmp ax, ETHER_IPv4 |
92 | cmp eax, AF_INET4 |
| Line 79... | Line 104... | ||
| 79 | ; |
104 | ; |
| 80 | ; LOOP_output |
105 | ; LOOP_output |
| 81 | ; |
106 | ; |
| 82 | ; IN: |
107 | ; IN: |
| 83 | ; ecx = packet size |
108 | ; ecx = packet size |
| 84 | ; di = protocol |
109 | ; edi = address family |
| 85 | ; |
110 | ; |
| 86 | ; OUT: edi = 0 on error, pointer to buffer otherwise |
111 | ; OUT: edi = 0 on error, pointer to buffer otherwise |
| 87 | ; eax = buffer start |
112 | ; eax = buffer start |
| 88 | ; ebx = to device structure |
113 | ; ebx = to device structure |
| 89 | ; ecx = unchanged (packet size of embedded data) |
114 | ; ecx = unchanged (packet size of embedded data) |
| Line 94... | Line 119... | ||
| 94 | LOOP_output: |
119 | LOOP_output: |
| Line 95... | Line 120... | ||
| 95 | 120 | ||
| Line 96... | Line 121... | ||
| 96 | DEBUGF DEBUG_NETWORK_VERBOSE, "LOOP_output\n" |
121 | DEBUGF DEBUG_NETWORK_VERBOSE, "LOOP_output\n" |
| 97 | 122 | ||
| Line 98... | Line 123... | ||
| 98 | push ecx |
123 | push ecx |
| 99 | push di |
124 | push edi |
| 100 | 125 | ||
| 101 | add ecx, 2 |
126 | add ecx, 4 |
| 102 | cmp ecx, [LOOPBACK_DEVICE.mtu] |
127 | cmp ecx, [LOOPBACK_DEVICE.mtu] |
| 103 | ja .out_of_ram |
128 | ja .out_of_ram |
| 104 | stdcall kernel_alloc, ecx |
129 | stdcall kernel_alloc, ecx |
| 105 | test eax, eax |
130 | test eax, eax |
| 106 | jz .out_of_ram |
131 | jz .out_of_ram |
| Line 107... | Line 132... | ||
| 107 | mov edi, eax |
132 | mov edi, eax |
| 108 | pop ax |
133 | pop eax |
| 109 | stosw |
134 | stosd |
| 110 | 135 | ||
| Line -... | Line 136... | ||
| - | 136 | lea eax, [edi - 4] ; Set eax to buffer start |
|
| - | 137 | pop ecx |
|
| - | 138 | lea edx, [ecx + 4] ; Set edx to complete buffer size |
|
| 111 | lea eax, [edi - 2] ; Set eax to buffer start |
139 | mov ebx, LOOPBACK_DEVICE |
| 112 | pop ecx |
140 | |
| 113 | lea edx, [ecx + 2] ; Set edx to complete buffer size |
141 | inc [LOOPBACK_DEVICE.packets_tx] |
| Line 114... | Line 142... | ||
| 114 | mov ebx, LOOPBACK_DEVICE |
142 | add dword[LOOPBACK_DEVICE.bytes_tx], ecx |
| 115 | 143 | adc dword[LOOPBACK_DEVICE.bytes_tx + 4], 0 |
|
| 116 | .done: |
144 | |
| 117 | DEBUGF DEBUG_NETWORK_VERBOSE, "LOOP_output: ptr=%x size=%u\n", eax, edx |
145 | DEBUGF DEBUG_NETWORK_VERBOSE, "LOOP_output: ptr=%x size=%u\n", eax, edx |
| 118 | ret |
146 | ret |