Rev 6011 | Rev 7678 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
5363 | yogev_ezra | 3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
3545 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
||
6 | ;; ETHERNET.INC ;; |
||
7 | ;; ;; |
||
8 | ;; Ethernet network layer for KolibriOS ;; |
||
9 | ;; ;; |
||
10 | ;; Written by hidnplayr@kolibrios.org ;; |
||
11 | ;; ;; |
||
12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
||
13 | ;; Version 2, June 1991 ;; |
||
14 | ;; ;; |
||
15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
16 | |||
4850 | mario79 | 17 | $Revision: 7536 $ |
3545 | hidnplayr | 18 | |
19 | ETH_FRAME_MINIMUM = 60 |
||
3982 | hidnplayr | 20 | ETH_QUEUE_SIZE = 255 |
3545 | hidnplayr | 21 | |
22 | struct ETH_header |
||
23 | |||
24 | DstMAC dp ? ; destination MAC-address |
||
25 | SrcMAC dp ? ; source MAC-address |
||
26 | Type dw ? ; type of the upper-layer protocol |
||
27 | |||
28 | ends |
||
29 | |||
30 | struct ETH_DEVICE NET_DEVICE |
||
31 | |||
32 | mac dp ? |
||
33 | |||
34 | ends |
||
35 | |||
5522 | hidnplayr | 36 | iglobal |
37 | align 4 |
||
3982 | hidnplayr | 38 | |
5522 | hidnplayr | 39 | ETH_BROADCAST dp 0xffffffffffff |
3982 | hidnplayr | 40 | |
5522 | hidnplayr | 41 | ETH_frame_queued dd 0 ; Number of queued frames |
3982 | hidnplayr | 42 | |
5522 | hidnplayr | 43 | ETH_frame_head dd ETH_frame_head ; Pointer to next frame in the linked list |
44 | ETH_frame_tail dd ETH_frame_head ; Pointer to last frame in the linked list |
||
3545 | hidnplayr | 45 | |
46 | endg |
||
47 | |||
3982 | hidnplayr | 48 | uglobal |
49 | align 4 |
||
50 | ETH_input_event dd ? |
||
51 | endg |
||
52 | |||
6011 | hidnplayr | 53 | macro eth_init { |
3982 | hidnplayr | 54 | |
55 | movi ebx, 1 |
||
6011 | hidnplayr | 56 | mov ecx, eth_process_input |
3982 | hidnplayr | 57 | call new_sys_threads |
58 | test eax, eax |
||
59 | jns @f |
||
60 | DEBUGF DEBUG_NETWORK_ERROR,'K : cannot create kernel thread for ethernet, error %d\n', eax |
||
61 | @@: |
||
62 | |||
63 | } |
||
64 | |||
6011 | hidnplayr | 65 | ;-----------------------------------------------------------------; |
66 | ; ; |
||
67 | ; eth_input: This function is called by ethernet drivers. ; |
||
68 | ; Push the received ethernet packet onto the ethernet input queue.; |
||
69 | ; ; |
||
70 | ; IN: [esp] = Pointer to buffer ; |
||
71 | ; ; |
||
72 | ; OUT: / ; |
||
73 | ; ; |
||
74 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 75 | align 4 |
6011 | hidnplayr | 76 | eth_input: |
3545 | hidnplayr | 77 | |
5522 | hidnplayr | 78 | pop eax |
79 | pushf |
||
80 | cli |
||
3982 | hidnplayr | 81 | |
5522 | hidnplayr | 82 | cmp [ETH_frame_queued], ETH_QUEUE_SIZE |
83 | jae .full |
||
84 | inc [ETH_frame_queued] |
||
3982 | hidnplayr | 85 | |
5522 | hidnplayr | 86 | ; Add frame to the end of the linked list |
87 | mov [eax + NET_BUFF.NextPtr], ETH_frame_head |
||
88 | |||
89 | mov ebx, [ETH_frame_tail] |
||
90 | mov [eax + NET_BUFF.PrevPtr], ebx |
||
91 | |||
92 | mov [ETH_frame_tail], eax |
||
93 | mov [ebx + NET_BUFF.NextPtr], eax |
||
94 | |||
95 | popf |
||
96 | |||
7536 | hidnplayr | 97 | ; Mark it as being an Ethernet Frame |
98 | mov [eax + NET_BUFF.type], NET_BUFF_ETH |
||
99 | |||
5522 | hidnplayr | 100 | ; Now queue an event to process it |
3982 | hidnplayr | 101 | xor edx, edx |
102 | mov eax, [ETH_input_event] |
||
103 | mov ebx, [eax + EVENT.id] |
||
104 | xor esi, esi |
||
105 | call raise_event |
||
106 | |||
107 | ret |
||
108 | |||
5522 | hidnplayr | 109 | .full: |
4511 | hidnplayr | 110 | DEBUGF DEBUG_NETWORK_ERROR, "ETH incoming queue is full, discarding packet!\n" |
5522 | hidnplayr | 111 | popf |
112 | push eax |
||
6011 | hidnplayr | 113 | call net_buff_free |
3982 | hidnplayr | 114 | ret |
115 | |||
116 | |||
117 | |||
6011 | hidnplayr | 118 | ;-----------------------------------------------------------------; |
119 | ; ; |
||
120 | ; eth_process_input: Process packets from ethernet input queue. ; |
||
121 | ; ; |
||
122 | ; IN: / ; |
||
123 | ; ; |
||
124 | ; OUT: / ; |
||
125 | ; ; |
||
126 | ;-----------------------------------------------------------------; |
||
3982 | hidnplayr | 127 | align 4 |
6011 | hidnplayr | 128 | eth_process_input: |
3982 | hidnplayr | 129 | |
130 | xor esi, esi |
||
131 | mov ecx, MANUAL_DESTROY |
||
132 | call create_event |
||
133 | mov [ETH_input_event], eax |
||
5522 | hidnplayr | 134 | pushf |
3982 | hidnplayr | 135 | .wait: |
5522 | hidnplayr | 136 | popf |
3982 | hidnplayr | 137 | mov eax, [ETH_input_event] |
138 | mov ebx, [eax + EVENT.id] |
||
139 | call wait_event |
||
140 | |||
141 | .loop: |
||
5522 | hidnplayr | 142 | pushf |
143 | cli |
||
144 | cmp [ETH_frame_queued], 0 |
||
145 | je .wait |
||
3982 | hidnplayr | 146 | |
5522 | hidnplayr | 147 | dec [ETH_frame_queued] |
3982 | hidnplayr | 148 | |
5522 | hidnplayr | 149 | mov esi, [ETH_frame_head] |
150 | mov ebx, [esi + NET_BUFF.NextPtr] |
||
3982 | hidnplayr | 151 | |
5522 | hidnplayr | 152 | mov [ETH_frame_head], ebx |
153 | mov [ebx + NET_BUFF.PrevPtr], ETH_frame_head |
||
154 | |||
155 | popf |
||
156 | |||
157 | mov eax, [esi + NET_BUFF.offset] |
||
158 | add eax, esi |
||
159 | mov ecx, [esi + NET_BUFF.length] |
||
160 | mov ebx, [esi + NET_BUFF.device] |
||
161 | |||
162 | pushd .loop ; return address for protocol handler |
||
163 | push esi ; keep pointer to NET_BUFF on stack |
||
164 | |||
3982 | hidnplayr | 165 | DEBUGF DEBUG_NETWORK_VERBOSE, "ETH_input: size=%u\n", ecx |
3643 | hidnplayr | 166 | sub ecx, sizeof.ETH_header |
3545 | hidnplayr | 167 | jb .dump |
168 | |||
5522 | hidnplayr | 169 | ; Set registers for protocol handlers |
3545 | hidnplayr | 170 | lea edx, [eax + sizeof.ETH_header] |
171 | mov ax, [eax + ETH_header.Type] |
||
172 | |||
5522 | hidnplayr | 173 | ; Place protocol handlers here |
3600 | hidnplayr | 174 | cmp ax, ETHER_PROTO_IPv4 |
6011 | hidnplayr | 175 | je ipv4_input |
3545 | hidnplayr | 176 | |
3601 | hidnplayr | 177 | cmp ax, ETHER_PROTO_ARP |
6011 | hidnplayr | 178 | je arp_input |
3545 | hidnplayr | 179 | |
5001 | hidnplayr | 180 | ; cmp ax, ETHER_PROTO_IPv6 |
6011 | hidnplayr | 181 | ; je ipv6_input |
3545 | hidnplayr | 182 | |
5001 | hidnplayr | 183 | ; cmp ax, ETHER_PROTO_PPP_DISCOVERY |
6011 | hidnplayr | 184 | ; je pppoe_discovery_input |
3545 | hidnplayr | 185 | |
5001 | hidnplayr | 186 | ; cmp ax, ETHER_PROTO_PPP_SESSION |
6011 | hidnplayr | 187 | ; je pppoe_session_input |
3545 | hidnplayr | 188 | |
4256 | hidnplayr | 189 | DEBUGF DEBUG_NETWORK_VERBOSE, "ETH_input: Unknown packet type=%x\n", ax |
3545 | hidnplayr | 190 | |
191 | .dump: |
||
4256 | hidnplayr | 192 | DEBUGF DEBUG_NETWORK_VERBOSE, "ETH_input: dumping\n" |
6011 | hidnplayr | 193 | call net_buff_free |
3545 | hidnplayr | 194 | ret |
195 | |||
6011 | hidnplayr | 196 | |
197 | |||
198 | ;-----------------------------------------------------------------; |
||
199 | ; ; |
||
200 | ; eth_output ; |
||
201 | ; ; |
||
202 | ; IN: ax = protocol ; |
||
203 | ; ebx = device ptr ; |
||
204 | ; ecx = payload size ; |
||
205 | ; edx = pointer to destination mac ; |
||
206 | ; ; |
||
207 | ; OUT: eax = start of net frame / 0 on error ; |
||
208 | ; ebx = device ptr ; |
||
209 | ; ecx = payload size ; |
||
210 | ; edi = start of payload ; |
||
211 | ; ; |
||
212 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 213 | align 4 |
6011 | hidnplayr | 214 | eth_output: |
3545 | hidnplayr | 215 | |
3556 | hidnplayr | 216 | DEBUGF DEBUG_NETWORK_VERBOSE, "ETH_output: size=%u device=%x\n", ecx, ebx |
3545 | hidnplayr | 217 | |
5015 | hidnplayr | 218 | cmp ecx, [ebx + ETH_DEVICE.mtu] |
3545 | hidnplayr | 219 | ja .exit |
220 | |||
221 | push ecx |
||
5015 | hidnplayr | 222 | push ax edx |
3545 | hidnplayr | 223 | |
5522 | hidnplayr | 224 | add ecx, sizeof.ETH_header + NET_BUFF.data |
6011 | hidnplayr | 225 | stdcall net_buff_alloc, ecx |
3545 | hidnplayr | 226 | test eax, eax |
227 | jz .out_of_ram |
||
5522 | hidnplayr | 228 | mov [eax + NET_BUFF.type], NET_BUFF_ETH |
229 | mov [eax + NET_BUFF.device], ebx |
||
230 | mov [eax + NET_BUFF.offset], NET_BUFF.data |
||
231 | lea edi, [eax + NET_BUFF.data] |
||
3545 | hidnplayr | 232 | |
233 | pop esi |
||
234 | movsd |
||
235 | movsw |
||
5015 | hidnplayr | 236 | lea esi, [ebx + ETH_DEVICE.mac] |
3545 | hidnplayr | 237 | movsd |
238 | movsw |
||
239 | pop ax |
||
240 | stosw |
||
241 | |||
5522 | hidnplayr | 242 | lea eax, [edi - sizeof.ETH_header - NET_BUFF.data] ; Set eax to buffer start |
3545 | hidnplayr | 243 | pop ecx |
5522 | hidnplayr | 244 | |
3545 | hidnplayr | 245 | lea edx, [ecx + sizeof.ETH_header] ; Set edx to complete buffer size |
246 | cmp edx, ETH_FRAME_MINIMUM |
||
247 | jbe .adjust_size |
||
248 | .done: |
||
5522 | hidnplayr | 249 | mov [eax + NET_BUFF.length], edx |
3556 | hidnplayr | 250 | DEBUGF DEBUG_NETWORK_VERBOSE, "ETH_output: ptr=%x size=%u\n", eax, edx |
3545 | hidnplayr | 251 | ret |
252 | |||
253 | .adjust_size: |
||
254 | mov edx, ETH_FRAME_MINIMUM |
||
5015 | hidnplayr | 255 | test edx, edx ; clear zero flag |
3545 | hidnplayr | 256 | jmp .done |
257 | |||
258 | .out_of_ram: |
||
3556 | hidnplayr | 259 | DEBUGF DEBUG_NETWORK_ERROR, "ETH_output: Out of ram!\n" |
5015 | hidnplayr | 260 | add esp, 4+2+4 |
261 | xor eax, eax |
||
3545 | hidnplayr | 262 | ret |
263 | |||
264 | .exit: |
||
3556 | hidnplayr | 265 | DEBUGF DEBUG_NETWORK_ERROR, "ETH_output: Packet too large!\n" |
5015 | hidnplayr | 266 | xor eax, eax |
3545 | hidnplayr | 267 | ret |
268 | |||
269 | |||
270 | |||
6011 | hidnplayr | 271 | ;-----------------------------------------------------------------; |
272 | ; ; |
||
273 | ; eth_api: Part of system function 76. ; |
||
274 | ; ; |
||
275 | ; IN: bl = subfunction number ; |
||
276 | ; bh = device number ; |
||
277 | ; ecx, edx, .. depends on subfunction ; |
||
278 | ; ; |
||
279 | ; OUT: depends on subfunction ; |
||
280 | ; ; |
||
281 | ;-----------------------------------------------------------------; |
||
3545 | hidnplayr | 282 | align 4 |
6011 | hidnplayr | 283 | eth_api: |
3545 | hidnplayr | 284 | |
3600 | hidnplayr | 285 | cmp bh, NET_DEVICES_MAX |
3545 | hidnplayr | 286 | ja .error |
287 | movzx eax, bh |
||
288 | mov eax, dword [NET_DRV_LIST + 4*eax] |
||
3600 | hidnplayr | 289 | cmp [eax + NET_DEVICE.device_type], NET_DEVICE_ETH |
3545 | hidnplayr | 290 | jne .error |
291 | |||
292 | and ebx, 0xff |
||
293 | cmp ebx, .number |
||
294 | ja .error |
||
295 | jmp dword [.table + 4*ebx] |
||
296 | |||
297 | .table: |
||
3601 | hidnplayr | 298 | dd .read_mac ; 0 |
3545 | hidnplayr | 299 | .number = ($ - .table) / 4 - 1 |
300 | |||
301 | .error: |
||
302 | or eax, -1 |
||
303 | ret |
||
304 | |||
305 | |||
306 | .read_mac: |
||
307 | movzx ebx, word [eax + ETH_DEVICE.mac] |
||
308 | mov eax, dword [eax + ETH_DEVICE.mac + 2] |
||
5522 | hidnplayr | 309 | mov [esp+20+4], ebx ; FIXME |
3545 | hidnplayr | 310 | ret |
311 |