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| 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 2 | ;; ;; |
2 | ;; ;; |
| 3 | ;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2019. All rights reserved. ;; |
| 4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
| 5 | ;; ;; |
5 | ;; ;; |
| 6 | ;; ARP.INC ;; |
6 | ;; ARP.INC ;; |
| 7 | ;; ;; |
7 | ;; ;; |
| 8 | ;; Part of the tcp/ip network stack for KolibriOS ;; |
8 | ;; Part of the tcp/ip network stack for KolibriOS ;; |
| Line 14... | Line 14... | ||
| 14 | ;; GNU GENERAL PUBLIC LICENSE ;; |
14 | ;; GNU GENERAL PUBLIC LICENSE ;; |
| 15 | ;; Version 2, June- 1991 ;; |
15 | ;; Version 2, June- 1991 ;; |
| 16 | ;; ;; |
16 | ;; ;; |
| 17 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
17 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 18... | Line 18... | ||
| 18 | 18 | ||
| Line 19... | Line 19... | ||
| 19 | $Revision: 7535 $ |
19 | $Revision: 7678 $ |
| 20 | 20 | ||
| 21 | ARP_NO_ENTRY = 0 |
21 | ARP_NO_ENTRY = 0 |
| 22 | ARP_VALID_MAPPING = 1 |
22 | ARP_VALID_MAPPING = 1 |
| Line 58... | Line 58... | ||
| 58 | uglobal |
58 | uglobal |
| 59 | align 4 |
59 | align 4 |
| Line 60... | Line 60... | ||
| 60 | 60 | ||
| Line 61... | Line 61... | ||
| 61 | ARP_table rb NET_DEVICES_MAX*(ARP_TABLE_SIZE * sizeof.ARP_entry) |
61 | ARP_table rb NET_DEVICES_MAX*(ARP_TABLE_SIZE * sizeof.ARP_entry) |
| 62 | 62 | ||
| 63 | ARP_entries_num rd NET_DEVICES_MAX |
63 | ARP_entries rd NET_DEVICES_MAX |
| 64 | ARP_PACKETS_TX rd NET_DEVICES_MAX |
64 | ARP_packets_tx rd NET_DEVICES_MAX |
| Line 65... | Line 65... | ||
| 65 | ARP_PACKETS_RX rd NET_DEVICES_MAX |
65 | ARP_packets_rx rd NET_DEVICES_MAX |
| Line 76... | Line 76... | ||
| 76 | ; ; |
76 | ; ; |
| 77 | ;-----------------------------------------------------------------; |
77 | ;-----------------------------------------------------------------; |
| 78 | macro arp_init { |
78 | macro arp_init { |
| Line 79... | Line 79... | ||
| 79 | 79 | ||
| 80 | xor eax, eax |
80 | xor eax, eax |
| 81 | mov edi, ARP_entries_num |
81 | mov edi, ARP_entries |
| 82 | mov ecx, 4*NET_DEVICES_MAX |
82 | mov ecx, 4*NET_DEVICES_MAX |
| Line 83... | Line 83... | ||
| 83 | rep stosd |
83 | rep stosd |
| Line 105... | Line 105... | ||
| 105 | ; The last status value is provided to allow the network layer to delete |
105 | ; The last status value is provided to allow the network layer to delete |
| 106 | ; a packet that is queued awaiting an ARP response |
106 | ; a packet that is queued awaiting an ARP response |
| Line 107... | Line 107... | ||
| 107 | 107 | ||
| 108 | xor edi, edi |
108 | xor edi, edi |
| 109 | .loop_outer: |
109 | .loop_outer: |
| 110 | mov ecx, [ARP_entries_num + 4*edi] |
110 | mov ecx, [ARP_entries + 4*edi] |
| 111 | test ecx, ecx |
111 | test ecx, ecx |
| Line 112... | Line 112... | ||
| 112 | jz .exit |
112 | jz .exit |
| 113 | 113 | ||
| Line 175... | Line 175... | ||
| 175 | 175 | ||
| 176 | call net_ptr_to_num4 |
176 | call net_ptr_to_num4 |
| 177 | cmp edi, -1 |
177 | cmp edi, -1 |
| Line 178... | Line 178... | ||
| 178 | jz .exit |
178 | jz .exit |
| Line 179... | Line 179... | ||
| 179 | 179 | ||
| 180 | inc [ARP_PACKETS_RX + edi] ; update stats |
180 | inc [ARP_packets_rx + edi] ; update stats |
| 181 | 181 | ||
| Line 182... | Line 182... | ||
| 182 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_input: got packet from %u.%u.%u.%u (device*4=%u)\n",\ |
182 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_input: got packet from %u.%u.%u.%u (device*4=%u)\n",\ |
| 183 | [edx + ARP_header.SenderIP]:1, [edx + ARP_header.SenderIP + 1]:1,\ |
183 | [edx + ARP_header.SenderIP]:1, [edx + ARP_header.SenderIP + 1]:1,\ |
| Line 184... | Line 184... | ||
| 184 | [edx + ARP_header.SenderIP + 2]:1, [edx + ARP_header.SenderIP + 3]:1, edi |
184 | [edx + ARP_header.SenderIP + 2]:1, [edx + ARP_header.SenderIP + 3]:1, edi |
| 185 | 185 | ||
| 186 | ;------------------------------ |
186 | ;------------------------------ |
| Line 187... | Line 187... | ||
| 187 | ; First, check for IP collision |
187 | ; First, check for IP collision |
| 188 | 188 | ||
| Line 189... | Line 189... | ||
| 189 | mov eax, [edx + ARP_header.SenderIP] |
189 | mov eax, [edx + ARP_header.SenderIP] |
| 190 | cmp eax, [IP_LIST + edi] |
190 | cmp eax, [IPv4_address + edi] |
| Line 191... | Line 191... | ||
| 191 | je .collision |
191 | je .collision |
| Line 192... | Line 192... | ||
| 192 | 192 | ||
| 193 | ;--------------------- |
193 | ;--------------------- |
| 194 | ; Handle reply packets |
194 | ; Handle reply packets |
| Line 195... | Line 195... | ||
| 195 | 195 | ||
| 196 | cmp [edx + ARP_header.Opcode], ARP_REP_OPCODE |
196 | cmp [edx + ARP_header.Opcode], ARP_REP_OPCODE |
| Line 240... | Line 240... | ||
| 240 | cmp [edx + ARP_header.Opcode], ARP_REQ_OPCODE |
240 | cmp [edx + ARP_header.Opcode], ARP_REQ_OPCODE |
| 241 | jne .exit |
241 | jne .exit |
| Line 242... | Line 242... | ||
| 242 | 242 | ||
| Line 243... | Line 243... | ||
| 243 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_input: its a request\n" |
243 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_input: its a request\n" |
| 244 | 244 | ||
| 245 | mov eax, [IP_LIST + edi] |
245 | mov eax, [IPv4_address + edi] |
| Line 246... | Line 246... | ||
| 246 | cmp eax, [edx + ARP_header.TargetIP] ; Is it looking for my IP address? |
246 | cmp eax, [edx + ARP_header.TargetIP] ; Is it looking for my IP address? |
| 247 | jne .exit |
247 | jne .exit |
| Line 257... | Line 257... | ||
| 257 | movsd ; Move Sender Mac to Dest MAC |
257 | movsd ; Move Sender Mac to Dest MAC |
| 258 | movsw ; |
258 | movsw ; |
| 259 | movsd ; Move sender IP to Dest IP |
259 | movsd ; Move sender IP to Dest IP |
| Line 260... | Line 260... | ||
| 260 | 260 | ||
| 261 | pop esi |
261 | pop esi |
| 262 | mov esi, [NET_DRV_LIST + esi] |
262 | mov esi, [net_drv_list + esi] |
| 263 | lea esi, [esi + ETH_DEVICE.mac] |
263 | lea esi, [esi + ETH_DEVICE.mac] |
| 264 | lea edi, [edx + ARP_header.SenderMAC] |
264 | lea edi, [edx + ARP_header.SenderMAC] |
| 265 | movsd ; Copy MAC address from in MAC_LIST |
265 | movsd ; Copy MAC address from in MAC_LIST |
| 266 | movsw ; |
266 | movsw ; |
| Line 286... | Line 286... | ||
| 286 | 286 | ||
| 287 | call [ebx + NET_DEVICE.transmit] |
287 | call [ebx + NET_DEVICE.transmit] |
| Line 288... | Line 288... | ||
| 288 | ret |
288 | ret |
| 289 | 289 | ||
| 290 | .collision: |
290 | .collision: |
| Line 291... | Line 291... | ||
| 291 | inc [ARP_CONFLICTS + edi] |
291 | inc [ARP_conflicts + edi] |
| 292 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_input: IP address conflict detected!\n" |
292 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_input: IP address conflict detected!\n" |
| 293 | 293 | ||
| Line 331... | Line 331... | ||
| 331 | movsw ; |
331 | movsw ; |
| 332 | movsd ; |
332 | movsd ; |
| Line 333... | Line 333... | ||
| 333 | 333 | ||
| 334 | push edi |
334 | push edi |
| 335 | call net_ptr_to_num4 |
335 | call net_ptr_to_num4 |
| 336 | inc [ARP_PACKETS_TX + edi] ; assume we will succeed |
336 | inc [ARP_packets_tx + edi] ; assume we will succeed |
| 337 | lea esi, [IP_LIST + edi] ; SenderIP |
337 | lea esi, [IPv4_address + edi] ; SenderIP |
| 338 | pop edi |
338 | pop edi |
| Line 339... | Line 339... | ||
| 339 | movsd |
339 | movsd |
| 340 | 340 | ||
| Line 370... | Line 370... | ||
| 370 | 370 | ||
| Line 371... | Line 371... | ||
| 371 | ; TODO: use a mutex to lock ARP table |
371 | ; TODO: use a mutex to lock ARP table |
| Line 372... | Line 372... | ||
| 372 | 372 | ||
| 373 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_add_entry: device=%u\n", edi |
373 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_add_entry: device=%u\n", edi |
| 374 | 374 | ||
| Line 375... | Line 375... | ||
| 375 | mov ecx, [ARP_entries_num + edi] |
375 | mov ecx, [ARP_entries + edi] |
| Line 376... | Line 376... | ||
| 376 | cmp ecx, ARP_TABLE_SIZE ; list full ? |
376 | cmp ecx, ARP_TABLE_SIZE ; list full ? |
| Line 377... | Line 377... | ||
| 377 | jae .full |
377 | jae .full |
| 378 | 378 | ||
| 379 | ; From this point on, we can only fail if IP has a static entry, or if table is corrupt. |
379 | ; From this point on, we can only fail if IP has a static entry, or if table is corrupt. |
| 380 | 380 | ||
| Line 415... | Line 415... | ||
| 415 | 415 | ||
| Line 416... | Line 416... | ||
| 416 | ret |
416 | ret |
| 417 | 417 | ||
| 418 | .error: |
418 | .error: |
| 419 | pop edi |
419 | pop edi |
| 420 | dec [ARP_entries_num + edi] |
420 | dec [ARP_entries + edi] |
| 421 | DEBUGF DEBUG_NETWORK_ERROR, "ARP_add_entry_failed\n" |
421 | DEBUGF DEBUG_NETWORK_ERROR, "ARP_add_entry_failed\n" |
| 422 | .full: |
422 | .full: |
| Line 458... | Line 458... | ||
| 458 | xor eax, eax |
458 | xor eax, eax |
| 459 | mov ecx, sizeof.ARP_entry/2 |
459 | mov ecx, sizeof.ARP_entry/2 |
| 460 | rep stosw |
460 | rep stosw |
| Line 461... | Line 461... | ||
| 461 | 461 | ||
| 462 | pop edi |
462 | pop edi |
| 463 | dec [ARP_entries_num + 4*edi] |
463 | dec [ARP_entries + 4*edi] |
| Line 464... | Line 464... | ||
| 464 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_del_entry: success\n" |
464 | DEBUGF DEBUG_NETWORK_VERBOSE, "ARP_del_entry: success\n" |
| Line 495... | Line 495... | ||
| 495 | je .broadcast |
495 | je .broadcast |
| Line 496... | Line 496... | ||
| 496 | 496 | ||
| 497 | ;-------------------------------- |
497 | ;-------------------------------- |
| Line 498... | Line 498... | ||
| 498 | ; Try to find the IP in ARP_table |
498 | ; Try to find the IP in ARP_table |
| 499 | 499 | ||
| 500 | mov ecx, [ARP_entries_num + edi] |
500 | mov ecx, [ARP_entries + edi] |
| 501 | test ecx, ecx |
501 | test ecx, ecx |
| 502 | jz .not_in_list |
502 | jz .not_in_list |
| 503 | mov esi, edi |
503 | mov esi, edi |
| Line 537... | Line 537... | ||
| 537 | 537 | ||
| 538 | ; Now send a request packet on the network |
538 | ; Now send a request packet on the network |
| Line 539... | Line 539... | ||
| 539 | pop edi eax ; IP in eax, device number in ebx, for ARP_output_request |
539 | pop edi eax ; IP in eax, device number in ebx, for ARP_output_request |
| 540 | 540 | ||
| 541 | push esi edi |
541 | push esi edi |
| 542 | mov ebx, [NET_DRV_LIST + edi] |
542 | mov ebx, [net_drv_list + edi] |
| 543 | call arp_output_request |
543 | call arp_output_request |
| 544 | pop edi esi |
544 | pop edi esi |
| 545 | .found_it: |
545 | .found_it: |
| Line 618... | Line 618... | ||
| 618 | .error: |
618 | .error: |
| 619 | mov eax, -1 |
619 | mov eax, -1 |
| 620 | ret |
620 | ret |
| Line 621... | Line 621... | ||
| 621 | 621 | ||
| 622 | .packets_tx: |
622 | .packets_tx: |
| 623 | mov eax, [ARP_PACKETS_TX + eax] |
623 | mov eax, [ARP_packets_tx + eax] |
| Line 624... | Line 624... | ||
| 624 | ret |
624 | ret |
| 625 | 625 | ||
| 626 | .packets_rx: |
626 | .packets_rx: |
| Line 627... | Line 627... | ||
| 627 | mov eax, [ARP_PACKETS_RX + eax] |
627 | mov eax, [ARP_packets_rx + eax] |
| 628 | ret |
628 | ret |
| 629 | 629 | ||
| Line 630... | Line 630... | ||
| 630 | .conflicts: |
630 | .conflicts: |
| 631 | mov eax, [ARP_CONFLICTS + eax] |
631 | mov eax, [ARP_conflicts + eax] |
| 632 | ret |
632 | ret |
| Line 633... | Line 633... | ||
| 633 | 633 | ||
| 634 | .entries: |
634 | .entries: |
| 635 | mov eax, [ARP_entries_num + eax] |
635 | mov eax, [ARP_entries + eax] |
| 636 | ret |
636 | ret |
| 637 | 637 | ||
| 638 | .read: |
638 | .read: |
| 639 | cmp ecx, [ARP_entries_num + eax] |
639 | cmp ecx, [ARP_entries + eax] |
| Line 657... | Line 657... | ||
| 657 | call arp_add_entry ; out: eax = entry number, -1 on error |
657 | call arp_add_entry ; out: eax = entry number, -1 on error |
| 658 | ret |
658 | ret |
| Line 659... | Line 659... | ||
| 659 | 659 | ||
| 660 | .remove: |
660 | .remove: |
| 661 | ; ecx = # entry |
661 | ; ecx = # entry |
| 662 | cmp ecx, [ARP_entries_num + eax] |
662 | cmp ecx, [ARP_entries + eax] |
| 663 | jae .error |
663 | jae .error |
| 664 | imul ecx, sizeof.ARP_entry |
664 | imul ecx, sizeof.ARP_entry |
| 665 | lea esi, [ARP_table + ecx] |
665 | lea esi, [ARP_table + ecx] |
| 666 | mov edi, eax |
666 | mov edi, eax |
| 667 | shr edi, 2 |
667 | shr edi, 2 |
| 668 | call arp_del_entry |
668 | call arp_del_entry |
| Line 669... | Line 669... | ||
| 669 | ret |
669 | ret |
| 670 | 670 | ||
| 671 | .send_announce: |
671 | .send_announce: |
| 672 | mov ebx, [NET_DRV_LIST + eax] |
672 | mov ebx, [net_drv_list + eax] |
| 673 | mov eax, [IP_LIST + eax] |
673 | mov eax, [IPv4_address + eax] |