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| Rev 3704 | Rev 3735 | ||
|---|---|---|---|
| Line 270... | Line 270... | ||
| 270 | mov eax, [dhcp.ip] |
270 | mov eax, [dhcp.ip] |
| 271 | mov [edx+240+11], eax |
271 | mov [edx+240+11], eax |
| 272 | mov [edx+240+15], word 0x0437 ; option request list |
272 | mov [edx+240+15], word 0x0437 ; option request list |
| 273 | mov [edx+240+17], dword 0x0f060301 |
273 | mov [edx+240+17], dword 0x0f060301 |
| Line 274... | Line 274... | ||
| 274 | 274 | ||
| 275 | cmp [dhcpMsgType], byte 0x01 ; Check which msg we are sending |
275 | cmp [dhcpMsgType], 0x01 ; Check which msg we are sending |
| Line 276... | Line 276... | ||
| 276 | jne request_options |
276 | jne request_options |
| Line 277... | Line 277... | ||
| 277 | 277 | ||
| Line 290... | Line 290... | ||
| 290 | mov [dhcpMsgLen], 268 ; length |
290 | mov [dhcpMsgLen], 268 ; length |
| Line 291... | Line 291... | ||
| 291 | 291 | ||
| 292 | send_dhcpmsg: |
292 | send_dhcpmsg: |
| 293 | DEBUGF 1,"Sending DHCP discover/request\n" |
293 | DEBUGF 1,"Sending DHCP discover/request\n" |
| - | 294 | mcall 75, 6, [socketNum], [dhcpMsg], [dhcpMsgLen] ; write to socket ( send broadcast request ) |
|
| 294 | mcall 75, 6, [socketNum], [dhcpMsg], [dhcpMsgLen] ; write to socket ( send broadcast request ) |
295 | .wait: |
| Line 295... | Line 296... | ||
| 295 | mcall 23, TIMEOUT*100 ; wait for data |
296 | mcall 23, TIMEOUT*100 ; wait for data |
| 296 | 297 | ||
| 297 | read_data: ; we have data - this will be the response |
298 | read_data: ; we have data - this will be the response |
| 298 | mcall 75, 7, [socketNum], [dhcpMsg], BUFFER, MSG_DONTWAIT ; read data from socket |
299 | mcall 75, 7, [socketNum], [dhcpMsg], BUFFER, MSG_DONTWAIT ; read data from socket |
| - | 300 | cmp eax, -1 |
|
| - | 301 | jne @f |
|
| 299 | cmp eax, -1 |
302 | cmp ebx, 6 ; EWOULDBLOCK |
| 300 | jne @f |
303 | je send_dhcpmsg.wait |
| 301 | DEBUGF 1,"No answer from DHCP server\n" |
304 | DEBUGF 1,"No answer from DHCP server\n" |
| 302 | dec [tries] |
305 | dec [tries] |
| Line 327... | Line 330... | ||
| 327 | jmp exit |
330 | jmp exit |
| Line 328... | Line 331... | ||
| 328 | 331 | ||
| 329 | discover: |
332 | discover: |
| Line 330... | Line 333... | ||
| 330 | call parse_response |
333 | call parse_response |
| 331 | 334 | ||
| Line 332... | Line 335... | ||
| 332 | cmp [dhcpMsgType], 0x02 ; Was the response an offer? |
335 | cmp [dhcpMsgType2], 0x02 ; Was the response an offer? |
| 333 | je send_request |
336 | je send_request |
| Line 341... | Line 344... | ||
| 341 | jmp build_request |
344 | jmp build_request |
| Line 342... | Line 345... | ||
| 342 | 345 | ||
| 343 | request: |
346 | request: |
| Line 344... | Line 347... | ||
| 344 | call parse_response |
347 | call parse_response |
| 345 | 348 | ||
| Line 346... | Line 349... | ||
| 346 | cmp [dhcpMsgType], 0x05 ; Was the response an ACK? It should be |
349 | cmp [dhcpMsgType2], 0x05 ; Was the response an ACK? It should be |
| Line 347... | Line 350... | ||
| 347 | jne read_data ; NO - read next packets |
350 | jne read_data ; NO - read next packets |
| Line 383... | Line 386... | ||
| 383 | ;*************************************************************************** |
386 | ;*************************************************************************** |
| 384 | parse_response: |
387 | parse_response: |
| Line 385... | Line 388... | ||
| 385 | 388 | ||
| 386 | DEBUGF 1,"Data received, parsing response\n" |
389 | DEBUGF 1,"Data received, parsing response\n" |
| - | 390 | mov edx, [dhcpMsg] |
|
| Line 387... | Line 391... | ||
| 387 | mov edx, [dhcpMsg] |
391 | mov [dhcpMsgType2], 0 |
| 388 | 392 | ||
| 389 | push dword [edx+16] |
393 | push dword [edx+16] |
| Line 439... | Line 443... | ||
| 439 | inc ecx |
443 | inc ecx |
| 440 | jmp .next_option |
444 | jmp .next_option |
| Line 441... | Line 445... | ||
| 441 | 445 | ||
| 442 | .msgtype: |
446 | .msgtype: |
| 443 | mov al, [edx] |
447 | mov al, [edx] |
| Line 444... | Line 448... | ||
| 444 | mov [dhcpMsgType], al |
448 | mov [dhcpMsgType2], al |
| 445 | 449 | ||
| Line 446... | Line 450... | ||
| 446 | DEBUGF 1,"DHCP Msg type: %u\n", al |
450 | DEBUGF 1,"DHCP Msg type: %u\n", al |
| Line 556... | Line 560... | ||
| 556 | 560 | ||
| 557 | 561 | ||
| 558 | error: |
562 | error: |
| - | 563 | DEBUGF 2,"Socket error\n" |
|
| 559 | DEBUGF 2,"Socket error\n" |
564 | exit: ; we should, instead of closing, detect ARP conflicts and detect if cable keeps connected ;) |
| Line 560... | Line 565... | ||
| 560 | exit: ; we should, instead of closing, detect ARP conflicts and detect if cable keeps connected ;) |
565 | DEBUGF 2,"Exiting\n" |
| Line 618... | Line 623... | ||
| 618 | 623 | ||
| 619 | device db 1 |
624 | device db 1 |
| 620 | inibuf rb 16 |
625 | inibuf rb 16 |
| Line 621... | Line 626... | ||
| 621 | tries db ? |
626 | tries db ? |
| - | 627 | ||
| 622 | 628 | dhcpMsgType db ? ; sent |
|
| 623 | dhcpMsgType db ? |
629 | dhcpMsgType2 db ? ; received |
| Line 624... | Line 630... | ||
| 624 | dhcpLease dd ? |
630 | dhcpLease dd ? |
| 625 | dhcpServerIP dd ? |
631 | dhcpServerIP dd ? |