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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 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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| 16 | 16 | ||
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| 17 | $Revision: 2942 $ |
17 | $Revision: 2946 $ |
| 18 | 18 | ||
| 19 | ;----------------------------------------------------------------- |
19 | ;----------------------------------------------------------------- |
| 20 | ; |
20 | ; |
| Line 249... | Line 249... | ||
| 249 | pop [ebx + TCP_SOCKET.ts_val] |
249 | pop [ebx + TCP_SOCKET.ts_val] |
| 250 | push dword [esi + 6] ; timestamp echo reply |
250 | push dword [esi + 6] ; timestamp echo reply |
| 251 | pop [ebx + TCP_SOCKET.ts_ecr] |
251 | pop [ebx + TCP_SOCKET.ts_ecr] |
| 252 | or [ebx + TCP_SOCKET.temp_bits], TCP_BIT_TIMESTAMP |
252 | or [ebx + TCP_SOCKET.temp_bits], TCP_BIT_TIMESTAMP |
| Line -... | Line 253... | ||
| - | 253 | ||
| - | 254 | ; Since we have a timestamp, lets do the paws test right away! |
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| - | 255 | ||
| - | 256 | test [edx + TCP_header.Flags], TH_RST |
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| - | 257 | jnz .no_paws |
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| - | 258 | ||
| - | 259 | mov eax, [ebx + TCP_SOCKET.ts_recent] |
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| - | 260 | test eax, eax |
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| - | 261 | jz .no_paws |
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| - | 262 | cmp eax, [ebx + TCP_SOCKET.ts_val] |
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| - | 263 | jge .no_paws |
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| - | 264 | ||
| - | 265 | DEBUGF 1,"TCP_input: PAWS: detected an old segment\n" |
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| - | 266 | ||
| - | 267 | mov eax, [esp+4+4] ; tcp_now |
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| - | 268 | sub eax, [ebx + TCP_SOCKET.ts_recent_age] |
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| - | 269 | cmp eax, TCP_PAWS_IDLE |
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| - | 270 | jle .dropafterack ; TODO: update stats |
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| - | 271 | ||
| - | 272 | mov [ebx + TCP_SOCKET.ts_recent], 0 ; timestamp was invalid, fix it. |
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| - | 273 | .no_paws: |
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| 253 | 274 | ||
| 254 | add esi, 10 |
275 | add esi, 10 |
| Line 255... | Line 276... | ||
| 255 | jmp .opt_loop |
276 | jmp .opt_loop |
| Line 440... | Line 461... | ||
| 440 | cmp [ebx + TCP_SOCKET.t_state], TCPS_SYN_SENT |
461 | cmp [ebx + TCP_SOCKET.t_state], TCPS_SYN_SENT |
| 441 | je .SYN_SENT |
462 | je .SYN_SENT |
| Line 442... | Line 463... | ||
| 442 | 463 | ||
| Line 443... | Line -... | ||
| 443 | DEBUGF 1,"TCP_input: state is not listen or syn_sent\n" |
- | |
| 444 | - | ||
| 445 | ;-------------------------------------------- |
- | |
| 446 | ; Protection Against Wrapped Sequence Numbers |
- | |
| 447 | - | ||
| 448 | ; First, check if timestamp is present |
- | |
| 449 | - | ||
| 450 | ;;;; TODO 602 |
- | |
| 451 | - | ||
| 452 | ; Then, check if at least some bytes of data are within window |
- | |
| 453 | - | ||
| 454 | ;;;; TODO |
- | |
| 455 | - | ||
| 456 | - | ||
| 457 | - | ||
| 458 | - | ||
| 459 | - | ||
| 460 | - | ||
| 461 | 464 | DEBUGF 1,"TCP_input: state is not listen or syn_sent\n" |
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| 462 | 465 | ||
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| 463 | ;---------------------------- |
466 | ;---------------------------- |