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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1514 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2010. All rights reserved. ;; |
1159 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; ETHERNET.INC ;; |
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7 | ;; ;; |
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8 | ;; Ethernet network layer for KolibriOS ;; |
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9 | ;; ;; |
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10 | ;; Written by hidnplayr@kolibrios.org ;; |
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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 | |||
1206 | hidnplayr | 17 | $Revision: 2931 $ |
1159 | hidnplayr | 18 | |
2731 | hidnplayr | 19 | ETH_FRAME_MINIMUM = 60 |
20 | |||
2311 | hidnplayr | 21 | struct ETH_header |
2305 | hidnplayr | 22 | |
2311 | hidnplayr | 23 | DstMAC dp ? ; destination MAC-address |
24 | SrcMAC dp ? ; source MAC-address |
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25 | Type dw ? ; type of the upper-layer protocol |
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2305 | hidnplayr | 26 | |
1159 | hidnplayr | 27 | ends |
28 | |||
2311 | hidnplayr | 29 | struct ETH_DEVICE NET_DEVICE |
1514 | hidnplayr | 30 | |
2311 | hidnplayr | 31 | set_mode dd ? |
32 | get_mode dd ? |
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1519 | hidnplayr | 33 | |
2311 | hidnplayr | 34 | set_MAC dd ? |
35 | get_MAC dd ? |
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1159 | hidnplayr | 36 | |
2311 | hidnplayr | 37 | mode dd ? |
38 | mac dp ? |
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1519 | hidnplayr | 39 | |
2305 | hidnplayr | 40 | ends |
1159 | hidnplayr | 41 | |
42 | align 4 |
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1196 | hidnplayr | 43 | iglobal |
44 | |||
2311 | hidnplayr | 45 | ETH_BROADCAST dp 0xffffffffffff |
1196 | hidnplayr | 46 | endg |
47 | |||
1257 | hidnplayr | 48 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 49 | ; |
1529 | hidnplayr | 50 | ; ETH_input |
1159 | hidnplayr | 51 | ; |
52 | ; This function is called by ethernet drivers, |
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53 | ; It pushes the received ethernet packets onto the eth_in_queue |
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54 | ; |
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1514 | hidnplayr | 55 | ; IN: [esp] = Pointer to buffer |
1529 | hidnplayr | 56 | ; [esp+4] = size of buffer |
1514 | hidnplayr | 57 | ; ebx = pointer to eth_device |
1159 | hidnplayr | 58 | ; OUT: / |
59 | ; |
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1257 | hidnplayr | 60 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 61 | align 4 |
1529 | hidnplayr | 62 | ETH_input: |
2311 | hidnplayr | 63 | mov eax, [esp] |
64 | mov ecx, [esp+4] |
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1249 | hidnplayr | 65 | |
2891 | hidnplayr | 66 | DEBUGF 1,"ETH_input: size=%u\n", ecx |
2311 | hidnplayr | 67 | cmp ecx, ETH_FRAME_MINIMUM |
68 | jb .dump |
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69 | sub ecx, sizeof.ETH_header |
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1159 | hidnplayr | 70 | |
2311 | hidnplayr | 71 | lea edx, [eax + sizeof.ETH_header] |
2731 | hidnplayr | 72 | mov ax, [eax + ETH_header.Type] |
1159 | hidnplayr | 73 | |
2311 | hidnplayr | 74 | cmp ax, ETHER_IPv4 |
75 | je IPv4_input |
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1159 | hidnplayr | 76 | |
2311 | hidnplayr | 77 | cmp ax, ETHER_ARP |
78 | je ARP_input |
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1159 | hidnplayr | 79 | |
2731 | hidnplayr | 80 | ; cmp ax, ETHER_IPv6 |
81 | ; je IPv6_input |
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82 | |||
2931 | hidnplayr | 83 | cmp ax, ETHER_PPP_DISCOVERY |
84 | je PPPoE_discovery_input |
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1519 | hidnplayr | 85 | |
2931 | hidnplayr | 86 | cmp ax, ETHER_PPP_SESSION |
87 | je PPPoE_session_input |
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2731 | hidnplayr | 88 | |
2891 | hidnplayr | 89 | DEBUGF 2,"ETH_input: Unknown packet type=%x\n", ax |
1159 | hidnplayr | 90 | |
91 | .dump: |
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2891 | hidnplayr | 92 | DEBUGF 2,"ETH_input: dumping\n" |
2311 | hidnplayr | 93 | call kernel_free |
94 | add esp, 4 |
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95 | ret |
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1159 | hidnplayr | 96 | |
1249 | hidnplayr | 97 | ;----------------------------------------------------------------- |
98 | ; |
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1529 | hidnplayr | 99 | ; ETH_output |
1159 | hidnplayr | 100 | ; |
1514 | hidnplayr | 101 | ; IN: eax = pointer to source mac |
1529 | hidnplayr | 102 | ; ebx = device ptr |
1514 | hidnplayr | 103 | ; ecx = packet size |
1529 | hidnplayr | 104 | ; edx = pointer to destination mac |
1514 | hidnplayr | 105 | ; di = protocol |
1159 | hidnplayr | 106 | ; |
1514 | hidnplayr | 107 | ; OUT: edi = 0 on error, pointer to buffer otherwise |
108 | ; eax = buffer start |
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109 | ; ebx = to device structure |
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110 | ; ecx = unchanged (packet size of embedded data) |
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111 | ; edx = size of complete buffer |
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1159 | hidnplayr | 112 | ; |
1257 | hidnplayr | 113 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 114 | align 4 |
1529 | hidnplayr | 115 | ETH_output: |
1159 | hidnplayr | 116 | |
2891 | hidnplayr | 117 | DEBUGF 1,"ETH_output: size=%u device=%x\n", ecx, ebx |
1159 | hidnplayr | 118 | |
2311 | hidnplayr | 119 | cmp ecx, [ebx + NET_DEVICE.mtu] |
120 | ja .exit |
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1159 | hidnplayr | 121 | |
2311 | hidnplayr | 122 | push ecx |
123 | push di eax edx |
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1159 | hidnplayr | 124 | |
2311 | hidnplayr | 125 | add ecx, sizeof.ETH_header |
126 | stdcall kernel_alloc, ecx |
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127 | test eax, eax |
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128 | jz .out_of_ram |
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129 | mov edi, eax |
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1529 | hidnplayr | 130 | |
2311 | hidnplayr | 131 | pop esi |
132 | movsd |
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133 | movsw |
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134 | pop esi |
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135 | movsd |
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136 | movsw |
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137 | pop ax |
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138 | stosw |
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1159 | hidnplayr | 139 | |
2311 | hidnplayr | 140 | lea eax, [edi - sizeof.ETH_header] ; Set eax to buffer start |
141 | pop ecx |
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142 | lea edx, [ecx + sizeof.ETH_header] ; Set edx to complete buffer size |
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1159 | hidnplayr | 143 | |
2311 | hidnplayr | 144 | cmp edx, ETH_FRAME_MINIMUM |
2607 | hidnplayr | 145 | jbe .adjust_size |
146 | .done: |
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2891 | hidnplayr | 147 | DEBUGF 1,"ETH_output: ptr=%x size=%u\n", eax, edx |
2311 | hidnplayr | 148 | ret |
1159 | hidnplayr | 149 | |
1529 | hidnplayr | 150 | .adjust_size: |
2311 | hidnplayr | 151 | mov edx, ETH_FRAME_MINIMUM |
152 | test edx, edx ; clear zero flag |
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2607 | hidnplayr | 153 | jmp .done |
1159 | hidnplayr | 154 | |
1529 | hidnplayr | 155 | .out_of_ram: |
2891 | hidnplayr | 156 | DEBUGF 2,"ETH_output: Out of ram!\n" |
2311 | hidnplayr | 157 | add esp, 4+4+2+4 |
158 | sub edi, edi |
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159 | ret |
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1206 | hidnplayr | 160 | |
1159 | hidnplayr | 161 | .exit: |
2311 | hidnplayr | 162 | DEBUGF 2,"ETH_output: Packet too large!\n" |
163 | sub edi, edi |
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164 | ret |
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1159 | hidnplayr | 165 | |
166 | |||
167 | |||
1257 | hidnplayr | 168 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 169 | ; |
170 | ; ETH_API |
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171 | ; |
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172 | ; This function is called by system function 75 |
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173 | ; |
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174 | ; IN: subfunction number in bl |
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175 | ; device number in bh |
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176 | ; ecx, edx, .. depends on subfunction |
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177 | ; |
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178 | ; OUT: |
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179 | ; |
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1257 | hidnplayr | 180 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 181 | align 4 |
2614 | hidnplayr | 182 | ETH_api: |
1159 | hidnplayr | 183 | |
2311 | hidnplayr | 184 | cmp bh, MAX_NET_DEVICES |
185 | ja .error |
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186 | movzx eax, bh |
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2614 | hidnplayr | 187 | mov eax, dword [NET_DRV_LIST + 4*eax] |
2311 | hidnplayr | 188 | cmp [eax + NET_DEVICE.type], NET_TYPE_ETH |
189 | jne .error |
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1514 | hidnplayr | 190 | |
2614 | hidnplayr | 191 | and ebx, 0xff |
192 | cmp ebx, .number |
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193 | ja .error |
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194 | jmp dword [.table + 4*ebx] |
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1159 | hidnplayr | 195 | |
2614 | hidnplayr | 196 | .table: |
197 | dd .packets_tx ; 0 |
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198 | dd .packets_rx ; 1 |
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199 | dd .bytes_tx ; 2 |
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200 | dd .bytes_rx ; 3 |
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201 | dd .read_mac ; 4 |
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202 | dd .write_mac ; 5 |
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203 | .number = ($ - .table) / 4 - 1 |
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204 | |||
1514 | hidnplayr | 205 | .error: |
2311 | hidnplayr | 206 | or eax, -1 |
207 | ret |
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1159 | hidnplayr | 208 | |
2614 | hidnplayr | 209 | .packets_tx: |
2311 | hidnplayr | 210 | mov eax, [eax + NET_DEVICE.packets_tx] |
1171 | hidnplayr | 211 | |
2311 | hidnplayr | 212 | ret |
1159 | hidnplayr | 213 | |
2614 | hidnplayr | 214 | .packets_rx: |
2311 | hidnplayr | 215 | mov eax, [eax + NET_DEVICE.packets_rx] |
216 | ret |
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1159 | hidnplayr | 217 | |
2614 | hidnplayr | 218 | .bytes_tx: |
2311 | hidnplayr | 219 | mov ebx, dword [eax + NET_DEVICE.bytes_tx + 4] |
220 | mov eax, dword [eax + NET_DEVICE.bytes_tx] |
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221 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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222 | ret |
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1159 | hidnplayr | 223 | |
2614 | hidnplayr | 224 | .bytes_rx: |
2311 | hidnplayr | 225 | mov ebx, dword [eax + NET_DEVICE.bytes_rx + 4] |
226 | mov eax, dword [eax + NET_DEVICE.bytes_rx] |
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227 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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228 | ret |
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1159 | hidnplayr | 229 | |
1174 | hidnplayr | 230 | |
2614 | hidnplayr | 231 | .read_mac: |
2311 | hidnplayr | 232 | movzx ebx, word [eax + ETH_DEVICE.mac] |
233 | mov eax, dword [eax + ETH_DEVICE.mac + 2] |
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234 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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235 | ret |
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1159 | hidnplayr | 236 | |
2614 | hidnplayr | 237 | .write_mac: |
2311 | hidnplayr | 238 | push ecx |
239 | push dx |
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240 | call [eax + ETH_DEVICE.set_MAC] |
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241 | ret |
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1159 | hidnplayr | 242 |