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Rev | Author | Line No. | Line |
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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1196 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2009. 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: 1259 $ |
1159 | hidnplayr | 18 | |
19 | MAX_ETH_DEVICES equ MAX_NET_DEVICES |
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20 | ETH_QUEUE_SIZE equ 16 |
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21 | |||
22 | struct ETH_FRAME |
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23 | .DstMAC dp ? ; destination MAC-address [6 bytes] |
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24 | .SrcMAC dp ? ; source MAC-address [6 bytes] |
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25 | .Type dw ? ; type of the upper-layer protocol [2 bytes] |
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26 | .Data: ; data [46-1500 bytes] |
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27 | ends |
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28 | |||
29 | struct ETH_DEVICE |
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30 | .unload dd ? |
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31 | .reset dd ? |
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32 | .transmit dd ? |
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33 | .set_MAC dd ? |
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34 | .get_MAC dd ? |
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35 | .set_mode dd ? |
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36 | .get_mode dd ? |
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37 | |||
38 | .bytes_tx dq ? |
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39 | .bytes_rx dq ? |
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40 | .packets_tx dd ? |
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41 | .packets_rx dd ? |
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42 | .mode dd ? ; This dword contains cable status (10mbit/100mbit, full/half duplex, auto negotiation or not,..) |
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43 | .name dd ? |
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44 | .mac dp ? |
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45 | ends ; the rest of the device struct depends on the type of device |
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46 | |||
47 | |||
48 | align 4 |
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1196 | hidnplayr | 49 | iglobal |
50 | |||
51 | ETH_BROADCAST dp 0xffffffffffff |
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52 | endg |
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53 | |||
54 | align 4 |
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1159 | hidnplayr | 55 | uglobal |
56 | |||
57 | ETH_RUNNING dd ? |
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58 | ETH_DRV_LIST rd MAX_ETH_DEVICES |
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59 | ETH_IN_QUEUE rd 3*ETH_QUEUE_SIZE+3 |
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1259 | hidnplayr | 60 | if QUEUE_BEFORE_SENDING |
1159 | hidnplayr | 61 | ETH_OUT_QUEUE rd 3*ETH_QUEUE_SIZE+3 |
1259 | hidnplayr | 62 | end if |
1159 | hidnplayr | 63 | endg |
64 | |||
65 | |||
1257 | hidnplayr | 66 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 67 | ; |
68 | ; ETH_init |
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69 | ; |
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70 | ; This function resets all ethernet variables |
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71 | ; |
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72 | ; IN: / |
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73 | ; OUT: / |
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74 | ; |
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1257 | hidnplayr | 75 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 76 | align 4 |
77 | ETH_init: |
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78 | |||
79 | xor eax, eax |
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80 | mov edi, ETH_RUNNING |
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81 | mov ecx, (1+MAX_ETH_DEVICES) |
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82 | rep stosd |
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83 | |||
1249 | hidnplayr | 84 | init_queue ETH_IN_QUEUE |
1259 | hidnplayr | 85 | |
86 | if QUEUE_BEFORE_SENDING |
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1249 | hidnplayr | 87 | init_queue ETH_OUT_QUEUE |
1259 | hidnplayr | 88 | end if |
1159 | hidnplayr | 89 | |
90 | ret |
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91 | |||
92 | |||
1257 | hidnplayr | 93 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 94 | ; |
95 | ; ETH_Add_Device: |
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96 | ; |
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97 | ; This function is called by ethernet drivers, |
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98 | ; to register each running ethernet device to the kernel |
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99 | ; |
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100 | ; IN: Pointer to device structure in ebx |
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101 | ; OUT: Device num in eax, -1 on error |
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102 | ; |
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1257 | hidnplayr | 103 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 104 | align 4 |
1249 | hidnplayr | 105 | ETH_add_device: |
1159 | hidnplayr | 106 | |
1185 | hidnplayr | 107 | DEBUGF 1,"ETH_Add_Device: %x ", ebx |
1174 | hidnplayr | 108 | |
109 | mov eax, [ETH_RUNNING] |
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110 | cmp eax, MAX_ETH_DEVICES |
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1159 | hidnplayr | 111 | jge .error |
112 | |||
1174 | hidnplayr | 113 | test eax, eax |
114 | jnz .notfirst |
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115 | mov dword [ETH_IN_QUEUE], eax |
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1259 | hidnplayr | 116 | if QUEUE_BEFORE_SENDING |
1174 | hidnplayr | 117 | mov dword [ETH_OUT_QUEUE], eax |
1259 | hidnplayr | 118 | end if |
1174 | hidnplayr | 119 | .notfirst: |
120 | |||
1159 | hidnplayr | 121 | mov eax, ebx |
122 | mov ecx, MAX_ETH_DEVICES ; We need to check whole list because a device may be removed without re-organizing list |
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123 | mov edi, ETH_DRV_LIST |
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124 | |||
125 | repne scasd ; See if device is already in the list |
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126 | jz .error |
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127 | |||
128 | xor eax, eax |
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129 | mov ecx, MAX_ETH_DEVICES |
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130 | mov edi, ETH_DRV_LIST |
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131 | |||
132 | repne scasd ; Find empty spot in the list |
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133 | jnz .error |
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134 | |||
135 | sub edi, 4 |
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136 | mov [edi], ebx ; add device to list |
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137 | |||
138 | sub edi, ETH_DRV_LIST ; edi = 4*device num Calculate device number in eax |
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139 | mov eax, edi ; edx = 4*device num |
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140 | shr eax, 2 |
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141 | |||
142 | inc [ETH_RUNNING] ; Indicate that one more ethernet device is up and running |
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1174 | hidnplayr | 143 | |
1159 | hidnplayr | 144 | DEBUGF 1,"- succes: %u\n",eax |
145 | ret |
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146 | |||
147 | .error: |
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148 | or eax, -1 |
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149 | DEBUGF 1,"- fail\n" |
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150 | ret |
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151 | |||
152 | |||
153 | |||
154 | |||
1257 | hidnplayr | 155 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 156 | ; |
157 | ; ETH_Remove_Device: |
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158 | ; |
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159 | ; This function is called by ethernet drivers, |
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160 | ; to unregister ethernet devices from the kernel |
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161 | ; |
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162 | ; IN: Pointer to device structure in ebx |
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163 | ; OUT: eax: -1 on error |
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164 | ; |
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1257 | hidnplayr | 165 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 166 | align 4 |
1249 | hidnplayr | 167 | ETH_remove_device: |
1159 | hidnplayr | 168 | |
169 | cmp [ETH_RUNNING], 0 |
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170 | je .error |
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171 | |||
172 | mov eax, ebx |
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173 | mov ecx, MAX_ETH_DEVICES |
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174 | mov edi, ETH_DRV_LIST |
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175 | |||
176 | repne scasd |
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177 | jnz .error |
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178 | |||
179 | xor eax, eax |
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180 | mov dword [edi-4], eax |
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181 | |||
182 | dec [ETH_RUNNING] |
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1174 | hidnplayr | 183 | jnz .notlast |
1159 | hidnplayr | 184 | |
1174 | hidnplayr | 185 | mov dword [ETH_IN_QUEUE], ETH_QUEUE_SIZE |
1259 | hidnplayr | 186 | if QUEUE_BEFORE_SENDING |
1174 | hidnplayr | 187 | mov dword [ETH_OUT_QUEUE], ETH_QUEUE_SIZE |
1259 | hidnplayr | 188 | end if |
1174 | hidnplayr | 189 | |
1257 | hidnplayr | 190 | .notlast: |
1159 | hidnplayr | 191 | ret |
192 | |||
1257 | hidnplayr | 193 | .error: |
1159 | hidnplayr | 194 | or eax, -1 |
195 | ret |
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196 | |||
197 | |||
198 | |||
1257 | hidnplayr | 199 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 200 | ; |
201 | ; ETH_Receiver: |
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202 | ; |
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203 | ; This function is called by ethernet drivers, |
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204 | ; It pushes the received ethernet packets onto the eth_in_queue |
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205 | ; |
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1257 | hidnplayr | 206 | ; IN: [esp] = Pointer to buffer |
207 | ; [esp-4] = size of buffer |
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208 | ; ebx = pointer to eth_device |
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1159 | hidnplayr | 209 | ; OUT: / |
210 | ; |
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1257 | hidnplayr | 211 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 212 | align 4 |
1249 | hidnplayr | 213 | ETH_receiver: |
1257 | hidnplayr | 214 | |
1249 | hidnplayr | 215 | DEBUGF 1,"ETH_Receiver: " |
216 | push ebx |
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217 | mov esi, esp |
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218 | add_to_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .fail |
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219 | DEBUGF 1,"Queued packet successfully\n" |
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220 | add esp, 4*3 |
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1257 | hidnplayr | 221 | |
1249 | hidnplayr | 222 | ret |
1159 | hidnplayr | 223 | |
1249 | hidnplayr | 224 | .fail: |
225 | DEBUGF 1,"ETH_IN_QUEUE is full!\n" |
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226 | add esp, 4 |
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227 | call kernel_free |
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228 | add esp, 4 |
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1257 | hidnplayr | 229 | |
1159 | hidnplayr | 230 | ret |
231 | |||
232 | |||
233 | |||
1257 | hidnplayr | 234 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 235 | ; |
236 | ; ETH_Handler: |
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237 | ; |
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238 | ; Handles all queued eth packets (called from kernel's main_loop) |
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239 | ; |
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240 | ; IN: / |
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241 | ; OUT: / |
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242 | ; |
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1257 | hidnplayr | 243 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 244 | align 4 |
1196 | hidnplayr | 245 | ETH_handler: |
1159 | hidnplayr | 246 | |
1249 | hidnplayr | 247 | get_from_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .gohome |
1159 | hidnplayr | 248 | |
1249 | hidnplayr | 249 | push ETH_handler |
250 | |||
251 | lodsd |
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252 | mov ebx, eax |
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253 | lodsd |
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254 | mov ecx, eax |
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255 | lodsd |
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256 | xchg eax, ecx |
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257 | push ecx |
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258 | push eax |
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259 | |||
1159 | hidnplayr | 260 | DEBUGF 1,"ETH_Handler - size: %u\n", ecx |
261 | cmp ecx, 60 ; check packet length |
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262 | jl .dump |
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263 | sub ecx, ETH_FRAME.Data |
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264 | |||
265 | lea edx, [eax + ETH_FRAME.Data] |
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266 | mov ax , [eax + ETH_FRAME.Type] |
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267 | |||
268 | cmp ax, ETHER_IPv4 |
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1196 | hidnplayr | 269 | je IPv4_handler |
1159 | hidnplayr | 270 | |
271 | cmp ax, ETHER_ARP |
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1196 | hidnplayr | 272 | je ARP_handler |
1159 | hidnplayr | 273 | |
274 | DEBUGF 1,"Unknown ethernet packet type %x\n", ax |
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275 | |||
276 | .dump: |
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277 | DEBUGF 1,"Dumping packet\n" |
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278 | call kernel_free |
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279 | add esp, 4 |
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280 | |||
281 | .gohome: |
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1249 | hidnplayr | 282 | ret ; return to get more from queue / to caller |
1159 | hidnplayr | 283 | |
284 | |||
285 | |||
286 | ;----------------------------------------------------------------- |
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287 | ; |
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1249 | hidnplayr | 288 | ; ETH_sender: |
1159 | hidnplayr | 289 | ; |
290 | ; This function sends an ethernet packet to the correct driver. |
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291 | ; |
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292 | ; IN: Pointer to buffer in [esp] |
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293 | ; size of buffer in [esp+4] |
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294 | ; pointer to device struct in ebx |
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295 | ; OUT: / |
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296 | ; |
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297 | ;----------------------------------------------------------------- |
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298 | align 4 |
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1249 | hidnplayr | 299 | ETH_sender: |
1259 | hidnplayr | 300 | if QUEUE_BEFORE_SENDING |
1249 | hidnplayr | 301 | DEBUGF 1,"ETH_Sender: queuing for device: %x, %u bytes\n", [esp], [esp + 4] |
1159 | hidnplayr | 302 | |
1249 | hidnplayr | 303 | push ebx |
304 | mov esi, esp |
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305 | add_to_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .fail |
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306 | DEBUGF 1,"Queued packet successfully\n" |
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307 | add esp, 3*4 |
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1257 | hidnplayr | 308 | |
1249 | hidnplayr | 309 | ret |
1159 | hidnplayr | 310 | |
1249 | hidnplayr | 311 | .fail: |
312 | DEBUGF 1,"ETH_OUT_QUEUE is full!\n" |
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313 | add esp, 4 |
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314 | call kernel_free |
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315 | add esp, 4 |
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1257 | hidnplayr | 316 | |
1159 | hidnplayr | 317 | ret |
318 | |||
319 | |||
1249 | hidnplayr | 320 | |
321 | ;----------------------------------------------------------------- |
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322 | ; |
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323 | ; ETH_send_queued: |
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324 | ; |
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325 | ; IN: / |
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326 | ; OUT: / |
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327 | ; |
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328 | ;----------------------------------------------------------------- |
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1159 | hidnplayr | 329 | align 4 |
330 | ETH_send_queued: |
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331 | |||
1249 | hidnplayr | 332 | get_from_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .gohome |
1159 | hidnplayr | 333 | |
1254 | hidnplayr | 334 | push ETH_send_queued ; this will cause the procedure to check for more packets |
335 | ; when a single packet is handled |
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1249 | hidnplayr | 336 | |
1254 | hidnplayr | 337 | mov ebx, [esi] |
338 | pushd [esi + 8] |
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339 | pushd [esi + 4] |
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1249 | hidnplayr | 340 | |
341 | DEBUGF 1,"dequeued packet for device %x\n", ebx |
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1259 | hidnplayr | 342 | end if |
1254 | hidnplayr | 343 | call [ebx+ETH_DEVICE.transmit] ; we will return to get_from_queue macro after transmitting packet |
1159 | hidnplayr | 344 | call kernel_free |
345 | add esp, 4 ; pop (balance stack) |
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1249 | hidnplayr | 346 | |
1257 | hidnplayr | 347 | .gohome: |
1159 | hidnplayr | 348 | ret |
349 | |||
1249 | hidnplayr | 350 | |
1257 | hidnplayr | 351 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 352 | ; |
353 | ; ETH_struc2dev |
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354 | ; |
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355 | ; IN: pointer to device struct in ebx |
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356 | ; |
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357 | ; OUT: edi is -1 on error, device number otherwise |
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358 | ; |
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1257 | hidnplayr | 359 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 360 | align 4 |
361 | ETH_struc2dev: |
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362 | push eax ecx |
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363 | |||
364 | mov eax, ebx |
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365 | mov ecx, MAX_ETH_DEVICES |
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366 | mov edi, ETH_DRV_LIST |
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367 | |||
368 | repne scasd |
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369 | jnz .error |
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370 | |||
371 | sub edi, ETH_DRV_LIST+4 |
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372 | shr edi, 2 |
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373 | |||
374 | pop ecx eax |
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375 | ret |
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376 | .error: |
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377 | or edi, -1 |
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378 | pop ecx eax |
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379 | |||
380 | ret |
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381 | |||
382 | |||
1257 | hidnplayr | 383 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 384 | ; |
1257 | hidnplayr | 385 | ; ETH_create_packet |
1159 | hidnplayr | 386 | ; |
387 | ; IN: pointer to source mac in eax |
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388 | ; pointer to destination mac in ebx |
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389 | ; packet size in ecx |
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390 | ; device number in edx |
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391 | ; protocol in di |
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392 | ; |
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1206 | hidnplayr | 393 | ; OUT: edi is -1 on error, pointer to buffer otherwise |
1159 | hidnplayr | 394 | ; eax points to buffer start |
1206 | hidnplayr | 395 | ; ebx is pointer to device structure |
1159 | hidnplayr | 396 | ; ecx is unchanged (packet size of embedded data) |
1206 | hidnplayr | 397 | ; edx is size of complete buffer |
1159 | hidnplayr | 398 | ; esi points to procedure wich needs to be called to send packet |
399 | ; |
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1257 | hidnplayr | 400 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 401 | align 4 |
1249 | hidnplayr | 402 | ETH_create_packet: |
1159 | hidnplayr | 403 | |
1206 | hidnplayr | 404 | DEBUGF 1,"Creating Ethernet Packet (size=%u): \n", ecx |
1159 | hidnplayr | 405 | |
1206 | hidnplayr | 406 | cmp ecx, 1500 |
1159 | hidnplayr | 407 | jg .exit |
408 | |||
409 | push ecx di eax ebx edx |
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410 | |||
411 | add ecx, ETH_FRAME.Data |
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412 | push ecx |
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413 | push ecx |
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414 | call kernel_alloc |
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415 | test eax, eax |
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416 | jz .pop_exit |
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417 | |||
418 | pop ecx |
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419 | pop edx |
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420 | |||
421 | mov edi, eax |
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422 | pop esi |
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423 | movsd |
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424 | movsw |
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425 | pop esi |
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426 | movsd |
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427 | movsw |
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428 | pop ax |
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429 | stosw |
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430 | |||
431 | lea eax, [edi - ETH_FRAME.Data] ; Set eax to buffer start |
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1206 | hidnplayr | 432 | mov edx, ecx ; Set ebx to complete buffer size |
1159 | hidnplayr | 433 | pop ecx |
1249 | hidnplayr | 434 | mov esi, ETH_sender |
1159 | hidnplayr | 435 | |
1206 | hidnplayr | 436 | xor ebx, ebx ;;;; TODO: Fixme |
437 | mov ebx, [ETH_DRV_LIST + ebx] |
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1159 | hidnplayr | 438 | |
1206 | hidnplayr | 439 | cmp edx, 46 + ETH_FRAME.Data ; If data size is less then 46, add padding bytes |
440 | jg .continue |
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441 | mov edx, 46 + ETH_FRAME.Data |
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442 | .continue: |
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443 | |||
444 | DEBUGF 1,"done: %x size:%u device:%x\n", eax, edx, ebx |
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1159 | hidnplayr | 445 | ret |
446 | |||
447 | .pop_exit: |
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1206 | hidnplayr | 448 | DEBUGF 1,"Out of ram space!!\n" |
1159 | hidnplayr | 449 | add esp, 18 |
1206 | hidnplayr | 450 | or edi,-1 |
451 | ret |
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452 | |||
1159 | hidnplayr | 453 | .exit: |
1206 | hidnplayr | 454 | DEBUGF 1,"Packet too large!\n" |
1159 | hidnplayr | 455 | or edi, -1 |
456 | ret |
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457 | |||
458 | |||
459 | |||
1257 | hidnplayr | 460 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 461 | ; |
462 | ; ETH_API |
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463 | ; |
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464 | ; This function is called by system function 75 |
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465 | ; |
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466 | ; IN: subfunction number in bl |
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467 | ; device number in bh |
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468 | ; ecx, edx, .. depends on subfunction |
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469 | ; |
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470 | ; OUT: |
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471 | ; |
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1257 | hidnplayr | 472 | ;----------------------------------------------------------------- |
1159 | hidnplayr | 473 | align 4 |
474 | ETH_API: |
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475 | |||
476 | movzx eax, bh |
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477 | shl eax, 2 |
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478 | |||
479 | test bl, bl |
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480 | jz .packets_tx ; 0 |
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481 | dec bl |
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482 | jz .packets_rx ; 1 |
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483 | dec bl |
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484 | jz .bytes_tx ; 2 |
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485 | dec bl |
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486 | jz .bytes_rx ; 3 |
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487 | dec bl |
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488 | jz .read_mac ; 4 |
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489 | dec bl |
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490 | jz .write_mac ; 5 |
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491 | dec bl |
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492 | jz .in_queue ; 6 |
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493 | dec bl |
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494 | jz .out_queue ; 7 |
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495 | |||
496 | .error: |
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497 | mov eax, -1 |
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498 | ret |
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499 | |||
500 | .packets_tx: |
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501 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 502 | mov eax, dword [eax] |
503 | mov eax, dword [eax + ETH_DEVICE.packets_tx] |
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504 | |||
1159 | hidnplayr | 505 | ret |
506 | |||
507 | .packets_rx: |
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508 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 509 | mov eax, dword [eax] |
510 | mov eax, dword [eax + ETH_DEVICE.packets_rx] |
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1159 | hidnplayr | 511 | ret |
512 | |||
513 | .bytes_tx: |
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514 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 515 | mov eax, dword [eax] |
1241 | clevermous | 516 | mov ebx, dword [eax + ETH_DEVICE.bytes_tx + 4] |
1174 | hidnplayr | 517 | mov eax, dword [eax + ETH_DEVICE.bytes_tx] |
518 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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1159 | hidnplayr | 519 | ret |
520 | |||
521 | .bytes_rx: |
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522 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 523 | mov eax, dword [eax] |
1174 | hidnplayr | 524 | mov ebx, dword [eax + ETH_DEVICE.bytes_rx + 4] |
525 | mov eax, dword [eax + ETH_DEVICE.bytes_rx] |
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526 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
||
1159 | hidnplayr | 527 | ret |
528 | |||
1174 | hidnplayr | 529 | |
1159 | hidnplayr | 530 | .read_mac: |
531 | add eax, ETH_DRV_LIST |
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532 | mov eax, [eax] |
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533 | ; push eax |
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534 | ; call dword [eax + ETH_DEVICE.get_MAC] |
||
535 | ; pop eax |
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536 | movzx ebx, word [eax + ETH_DEVICE.mac] |
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537 | mov eax, dword [eax + ETH_DEVICE.mac + 2] |
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1171 | hidnplayr | 538 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
1159 | hidnplayr | 539 | ret |
540 | |||
541 | .write_mac: |
||
542 | push ecx |
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543 | push dx |
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544 | add eax, ETH_DRV_LIST |
||
545 | mov eax, [eax] |
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546 | mov eax, dword [eax + ETH_DEVICE.set_MAC] |
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547 | call eax |
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548 | ret |
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549 | |||
550 | .in_queue: |
||
551 | add eax, ETH_IN_QUEUE |
||
552 | mov eax, [eax + queue.size] |
||
553 | ret |
||
554 | |||
555 | .out_queue: |
||
1259 | hidnplayr | 556 | if QUEUE_BEFORE_SENDING |
1159 | hidnplayr | 557 | add eax, ETH_OUT_QUEUE |
558 | mov eax, [eax + queue.size] |
||
1259 | hidnplayr | 559 | else |
560 | mov eax, -1 |
||
561 | end if |
||
1159 | hidnplayr | 562 | ret |