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