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| 12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
| 13 | ;; Version 2, June 1991 ;; |
13 | ;; Version 2, June 1991 ;; |
| 14 | ;; ;; |
14 | ;; ;; |
| 15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 16... | Line 16... | ||
| 16 | 16 | ||
| Line 17... | Line 17... | ||
| 17 | $Revision: 5976 $ |
17 | $Revision: 6011 $ |
| Line 18... | Line 18... | ||
| 18 | 18 | ||
| Line 36... | Line 36... | ||
| 36 | endg |
36 | endg |
| Line 37... | Line 37... | ||
| 37 | 37 | ||
| 38 | 38 | ||
| 39 | ;-----------------------------------------------------------------; |
39 | ;-----------------------------------------------------------------; |
| 40 | ; ; |
40 | ; ; |
| 41 | ; UDP_init: This function resets all UDP variables ; |
41 | ; udp_init: This function resets all UDP variables ; |
| 42 | ; ; |
42 | ; ; |
| Line 43... | Line 43... | ||
| 43 | ;-----------------------------------------------------------------; |
43 | ;-----------------------------------------------------------------; |
| 44 | macro UDP_init { |
44 | macro udp_init { |
| 45 | 45 | ||
| 46 | xor eax, eax |
46 | xor eax, eax |
| 47 | mov edi, UDP_PACKETS_TX |
47 | mov edi, UDP_PACKETS_TX |
| Line 48... | Line 48... | ||
| 48 | mov ecx, 2*NET_DEVICES_MAX |
48 | mov ecx, 2*NET_DEVICES_MAX |
| Line 49... | Line 49... | ||
| 49 | rep stosd |
49 | rep stosd |
| 50 | } |
50 | } |
| Line 51... | Line 51... | ||
| 51 | 51 | ||
| Line 96... | Line 96... | ||
| 96 | } |
96 | } |
| Line 97... | Line 97... | ||
| 97 | 97 | ||
| 98 | 98 | ||
| 99 | ;-----------------------------------------------------------------; |
99 | ;-----------------------------------------------------------------; |
| 100 | ; ; |
100 | ; ; |
| 101 | ; UDP_input: Inject the UDP data in the application sockets. ; |
101 | ; udp_input: Inject the UDP data in the application sockets. ; |
| 102 | ; ; |
102 | ; ; |
| 103 | ; IN: [esp] = ptr to buffer ; |
103 | ; IN: [esp] = ptr to buffer ; |
| 104 | ; ebx = ptr to device struct ; |
104 | ; ebx = ptr to device struct ; |
| Line 109... | Line 109... | ||
| 109 | ; ; |
109 | ; ; |
| 110 | ; OUT: / ; |
110 | ; OUT: / ; |
| 111 | ; ; |
111 | ; ; |
| 112 | ;-----------------------------------------------------------------; |
112 | ;-----------------------------------------------------------------; |
| 113 | align 4 |
113 | align 4 |
| 114 | UDP_input: |
114 | udp_input: |
| Line 115... | Line 115... | ||
| 115 | 115 | ||
| Line 116... | Line 116... | ||
| 116 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: size=%u\n", ecx |
116 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: size=%u\n", ecx |
| Line 121... | Line 121... | ||
| 121 | jz .no_checksum ; if checksum is zero, it is considered valid |
121 | jz .no_checksum ; if checksum is zero, it is considered valid |
| Line 122... | Line 122... | ||
| 122 | 122 | ||
| Line 123... | Line 123... | ||
| 123 | ; otherwise, we will re-calculate the checksum and add it to this value, thus creating 0 when it is correct |
123 | ; otherwise, we will re-calculate the checksum and add it to this value, thus creating 0 when it is correct |
| 124 | 124 | ||
| 125 | mov eax, edx |
125 | mov eax, edx |
| Line 126... | Line 126... | ||
| 126 | UDP_checksum (eax+IPv4_header.SourceAddress), (eax+IPv4_header.DestinationAddress) |
126 | udp_checksum (eax+IPv4_header.SourceAddress), (eax+IPv4_header.DestinationAddress) |
| 127 | jnz .checksum_mismatch |
127 | jnz .checksum_mismatch |
| Line 192... | Line 192... | ||
| 192 | 192 | ||
| 193 | movzx ecx, [esi + UDP_header.Length] |
193 | movzx ecx, [esi + UDP_header.Length] |
| 194 | sub ecx, sizeof.UDP_header |
194 | sub ecx, sizeof.UDP_header |
| Line 195... | Line 195... | ||
| 195 | add esi, sizeof.UDP_header |
195 | add esi, sizeof.UDP_header |
| Line 196... | Line 196... | ||
| 196 | 196 | ||
| 197 | jmp SOCKET_input |
197 | jmp socket_input |
| 198 | 198 | ||
| 199 | .updateport: |
199 | .updateport: |
| Line 218... | Line 218... | ||
| 218 | .checksum_mismatch: |
218 | .checksum_mismatch: |
| 219 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: checksum mismatch\n" |
219 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: checksum mismatch\n" |
| Line 220... | Line 220... | ||
| 220 | 220 | ||
| 221 | .dump: |
221 | .dump: |
| 222 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: dumping\n" |
222 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_input: dumping\n" |
| 223 | call NET_BUFF_free |
223 | call net_buff_free |
| Line 224... | Line 224... | ||
| 224 | ret |
224 | ret |
| 225 | 225 | ||
| 226 | 226 | ||
| 227 | 227 | ||
| 228 | ;-----------------------------------------------------------------; |
228 | ;-----------------------------------------------------------------; |
| 229 | ; ; |
229 | ; ; |
| 230 | ; UDP_output: Create an UDP packet. ; |
230 | ; udp_output: Create an UDP packet. ; |
| 231 | ; ; |
231 | ; ; |
| 232 | ; IN: eax = socket pointer ; |
232 | ; IN: eax = socket pointer ; |
| 233 | ; ecx = number of bytes to send ; |
233 | ; ecx = number of bytes to send ; |
| 234 | ; esi = pointer to data ; |
234 | ; esi = pointer to data ; |
| Line 235... | Line 235... | ||
| 235 | ; ; |
235 | ; ; |
| 236 | ; OUT: eax = -1 on error ; |
236 | ; OUT: eax = -1 on error ; |
| Line 237... | Line 237... | ||
| 237 | ; ; |
237 | ; ; |
| Line 238... | Line 238... | ||
| 238 | ;-----------------------------------------------------------------; |
238 | ;-----------------------------------------------------------------; |
| 239 | 239 | ||
| Line 254... | Line 254... | ||
| 254 | mov edx, [eax + IP_SOCKET.LocalIP] |
254 | mov edx, [eax + IP_SOCKET.LocalIP] |
| 255 | mov edi, [eax + IP_SOCKET.RemoteIP] |
255 | mov edi, [eax + IP_SOCKET.RemoteIP] |
| 256 | mov al, [eax + IP_SOCKET.ttl] |
256 | mov al, [eax + IP_SOCKET.ttl] |
| 257 | mov ah, IP_PROTO_UDP |
257 | mov ah, IP_PROTO_UDP |
| 258 | add ecx, sizeof.UDP_header |
258 | add ecx, sizeof.UDP_header |
| 259 | call IPv4_output |
259 | call ipv4_output |
| 260 | jz .fail |
260 | jz .fail |
| 261 | mov [esp + 8], eax ; pointer to buffer start |
261 | mov [esp + 8], eax ; pointer to buffer start |
| Line 262... | Line 262... | ||
| 262 | 262 | ||
| 263 | mov [edi + UDP_header.Length], cx |
263 | mov [edi + UDP_header.Length], cx |
| Line 277... | Line 277... | ||
| 277 | pop dword [edi + UDP_header.SourcePort] |
277 | pop dword [edi + UDP_header.SourcePort] |
| Line 278... | Line 278... | ||
| 278 | 278 | ||
| 279 | ; Checksum |
279 | ; Checksum |
| 280 | mov esi, edi |
280 | mov esi, edi |
| 281 | mov [edi + UDP_header.Checksum], 0 |
281 | mov [edi + UDP_header.Checksum], 0 |
| Line 282... | Line 282... | ||
| 282 | UDP_checksum (edi-4), (edi-8) ; FIXME: IPv4 packet could have options.. |
282 | udp_checksum (edi-4), (edi-8) ; FIXME: IPv4 packet could have options.. |
| 283 | 283 | ||
| 284 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: sending with device %x\n", ebx |
284 | DEBUGF DEBUG_NETWORK_VERBOSE, "UDP_output: sending with device %x\n", ebx |
| 285 | call [ebx + NET_DEVICE.transmit] |
285 | call [ebx + NET_DEVICE.transmit] |
| 286 | test eax, eax |
286 | test eax, eax |
| 287 | jnz @f |
287 | jnz @f |
| 288 | call NET_ptr_to_num4 |
288 | call net_ptr_to_num4 |
| Line 289... | Line 289... | ||
| 289 | inc [UDP_PACKETS_TX + edi] |
289 | inc [UDP_PACKETS_TX + edi] |
| Line 300... | Line 300... | ||
| 300 | 300 | ||
| 301 | 301 | ||
| 302 | 302 | ||
| 303 | ;-----------------------------------------------------------------; |
303 | ;-----------------------------------------------------------------; |
| 304 | ; ; |
304 | ; ; |
| 305 | ; UDP_connect ; |
305 | ; udp_connect ; |
| 306 | ; ; |
306 | ; ; |
| 307 | ; IN: eax = socket pointer ; |
307 | ; IN: eax = socket pointer ; |
| 308 | ; ; |
308 | ; ; |
| 309 | ; OUT: eax = 0 on success ; |
309 | ; OUT: eax = 0 on success ; |
| 310 | ; eax = -1 on error ; |
310 | ; eax = -1 on error ; |
| 311 | ; ebx = error code on error ; |
311 | ; ebx = error code on error ; |
| 312 | ; ; |
312 | ; ; |
| Line 313... | Line 313... | ||
| 313 | ;-----------------------------------------------------------------; |
313 | ;-----------------------------------------------------------------; |
| 314 | align 4 |
314 | align 4 |
| 315 | UDP_connect: |
315 | udp_connect: |
| 316 | 316 | ||
| Line 317... | Line 317... | ||
| 317 | test [eax + SOCKET.state], SS_ISCONNECTED |
317 | test [eax + SOCKET.state], SS_ISCONNECTED |
| 318 | jz @f |
318 | jz @f |
| 319 | call UDP_disconnect |
319 | call udp_disconnect |
| Line 338... | Line 338... | ||
| 338 | pop [eax + IP_SOCKET.RemoteIP] |
338 | pop [eax + IP_SOCKET.RemoteIP] |
| Line 339... | Line 339... | ||
| 339 | 339 | ||
| 340 | ; Find a local port, if user didnt define one |
340 | ; Find a local port, if user didnt define one |
| 341 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
341 | cmp [eax + UDP_SOCKET.LocalPort], 0 |
| 342 | jne @f |
342 | jne @f |
| 343 | call SOCKET_find_port |
343 | call socket_find_port |
| Line 344... | Line 344... | ||
| 344 | @@: |
344 | @@: |
| 345 | 345 | ||
| 346 | push eax |
346 | push eax |
| 347 | lea ecx, [eax + SOCKET.mutex] |
347 | lea ecx, [eax + SOCKET.mutex] |
| Line 348... | Line 348... | ||
| 348 | call mutex_unlock |
348 | call mutex_unlock |
| Line 349... | Line 349... | ||
| 349 | pop eax |
349 | pop eax |
| 350 | 350 | ||
| Line 362... | Line 362... | ||
| 362 | ; ; |
362 | ; ; |
| 363 | ; OUT: eax = socket pointer ; |
363 | ; OUT: eax = socket pointer ; |
| 364 | ; ; |
364 | ; ; |
| 365 | ;-----------------------------------------------------------------; |
365 | ;-----------------------------------------------------------------; |
| 366 | align 4 |
366 | align 4 |
| 367 | UDP_disconnect: |
367 | udp_disconnect: |
| Line 368... | Line 368... | ||
| 368 | 368 | ||
| Line 369... | Line 369... | ||
| 369 | ; TODO: remove the pending received data |
369 | ; TODO: remove the pending received data |
| Line 370... | Line 370... | ||
| 370 | 370 | ||
| Line 371... | Line 371... | ||
| 371 | call SOCKET_is_disconnected |
371 | call socket_is_disconnected |
| 372 | 372 | ||
| 373 | ret |
373 | ret |
| 374 | 374 | ||
| 375 | 375 | ||
| 376 | 376 | ||
| 377 | 377 | ||
| 378 | 378 | ||
| 379 | ;-----------------------------------------------------------------; |
379 | ;-----------------------------------------------------------------; |
| 380 | ; ; |
380 | ; ; |
| 381 | ; UDP_api: This function is called by system function 76 ; |
381 | ; UDP_api: Part of system function 76 ; |
| 382 | ; ; |
382 | ; ; |
| 383 | ; IN: bl = subfunction number in bl ; |
383 | ; IN: bl = subfunction number in bl ; |
| Line 384... | Line 384... | ||
| 384 | ; bh = device number in bh ; |
384 | ; bh = device number in bh ; |
| 385 | ; ecx, edx, .. depends on subfunction ; |
385 | ; ecx, edx, .. depends on subfunction ; |
| Line 386... | Line 386... | ||
| 386 | ; ; |
386 | ; ; |