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| Rev 5522 | Rev 5584 | ||
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| 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: 5522 $ |
19 | $Revision: 5584 $ |
| 20 | 20 | ||
| Line 21... | Line 21... | ||
| 21 | IPv4_MAX_FRAGMENTS = 64 |
21 | IPv4_MAX_FRAGMENTS = 64 |
| Line 567... | Line 567... | ||
| 567 | ;------------------------------------------------------------------ |
567 | ;------------------------------------------------------------------ |
| 568 | ; |
568 | ; |
| 569 | ; IPv4_output |
569 | ; IPv4_output |
| 570 | ; |
570 | ; |
| 571 | ; IN: eax = Destination IP |
571 | ; IN: eax = Destination IP |
| - | 572 | ; ebx = device ptr (or 0 to let IP layer decide) |
|
| 572 | ; ecx = data length |
573 | ; ecx = data length |
| 573 | ; edx = Source IP |
574 | ; edx = Source IP |
| 574 | ; di = TTL shl 8 + protocol |
575 | ; di = TTL shl 8 + protocol |
| 575 | ; |
576 | ; |
| 576 | ; OUT: eax = pointer to buffer start / 0 on error |
577 | ; OUT: eax = pointer to buffer start / 0 on error |
| Line 861... | Line 862... | ||
| 861 | ;--------------------------------------------------------------------------- |
862 | ;--------------------------------------------------------------------------- |
| 862 | ; |
863 | ; |
| 863 | ; IPv4_route |
864 | ; IPv4_route |
| 864 | ; |
865 | ; |
| 865 | ; IN: eax = Destination IP |
866 | ; IN: eax = Destination IP |
| - | 867 | ; ebx = outgoing device / 0 |
|
| 866 | ; edx = Source IP |
868 | ; edx = Source IP |
| 867 | ; OUT: eax = Destination IP (or gateway IP) |
869 | ; OUT: eax = Destination IP (or gateway IP) |
| 868 | ; edx = Source IP |
870 | ; edx = Source IP |
| 869 | ; edi = device number*4 |
871 | ; edi = device number*4 |
| 870 | ; DESTROYED: |
872 | ; DESTROYED: |
| Line 872... | Line 874... | ||
| 872 | ; |
874 | ; |
| 873 | ;--------------------------------------------------------------------------- |
875 | ;--------------------------------------------------------------------------- |
| 874 | align 4 |
876 | align 4 |
| 875 | IPv4_route: ; TODO: return error if no valid route found |
877 | IPv4_route: ; TODO: return error if no valid route found |
| Line -... | Line 878... | ||
| - | 878 | ||
| - | 879 | test ebx, ebx |
|
| - | 880 | jnz .got_device |
|
| 876 | 881 | ||
| 877 | cmp eax, 0xffffffff |
882 | cmp eax, 0xffffffff |
| Line 878... | Line 883... | ||
| 878 | je .broadcast |
883 | je .broadcast |
| 879 | 884 | ||
| Line 901... | Line 906... | ||
| 901 | mov edx, [IP_LIST + edi] |
906 | mov edx, [IP_LIST + edi] |
| 902 | @@: |
907 | @@: |
| Line 903... | Line 908... | ||
| 903 | 908 | ||
| Line -... | Line 909... | ||
| - | 909 | ret |
|
| - | 910 | ||
| - | 911 | .got_device: |
|
| - | 912 | ; Validate device ptr and convert to device number |
|
| - | 913 | call NET_ptr_to_num4 |
|
| - | 914 | cmp edi, -1 |
|
| - | 915 | je .fail |
|
| - | 916 | ||
| - | 917 | mov edx, [IP_LIST + edi] ; Source IP |
|
| - | 918 | ||
| - | 919 | ; Check if we should route to gateway or not |
|
| - | 920 | mov ebx, [IP_LIST + edi] |
|
| - | 921 | and ebx, [SUBNET_LIST + edi] |
|
| - | 922 | mov ecx, eax |
|
| - | 923 | and ecx, [SUBNET_LIST + edi] |
|
| - | 924 | je @f |
|
| - | 925 | mov eax, [GATEWAY_LIST + edi] |
|
| - | 926 | @@: |
|
| - | 927 | ret |
|
| - | 928 | ||
| - | 929 | .fail: |
|
| Line 904... | Line 930... | ||
| 904 | ret |
930 | ret |
| 905 | 931 | ||
| 906 | 932 | ||