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| 15 | ;; Version 2, June 1991 ;; |
15 | ;; Version 2, June 1991 ;; |
| 16 | ;; ;; |
16 | ;; ;; |
| 17 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
17 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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| 18 | 18 | ||
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| 19 | 19 | ||
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| 20 | $Revision: 2877 $ |
20 | $Revision: 2891 $ |
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| 140 | ; |
140 | ; |
| 141 | ;----------------------------------------------------------------- |
141 | ;----------------------------------------------------------------- |
| 142 | align 4 |
142 | align 4 |
| 143 | ICMP_input: |
143 | ICMP_input: |
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| 144 | 144 | ||
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| 145 | DEBUGF 1,"ICMP_input - start\n" |
145 | DEBUGF 1,"ICMP_input:\n" |
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| 146 | 146 | ||
| 147 | ; First, check the checksum (altough some implementations ignore it) |
147 | ; First, check the checksum (altough some implementations ignore it) |
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| 161 | jne .check_sockets |
161 | jne .check_sockets |
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| 162 | 162 | ||
| 163 | ; We well re-use the packet so we can create the response as fast as possible |
163 | ; We well re-use the packet so we can create the response as fast as possible |
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| 164 | ; Notice: this only works on pure ethernet |
164 | ; Notice: this only works on pure ethernet |
| 165 | 165 | ||
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| 166 | DEBUGF 1,"ICMP_input - echo request\n" |
166 | DEBUGF 1,"got echo request\n" |
| 167 | mov [edx + ICMP_header.Type], ICMP_ECHOREPLY ; Change Packet type to reply |
167 | mov [edx + ICMP_header.Type], ICMP_ECHOREPLY ; Change Packet type to reply |
| 168 | 168 | ||
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| 250 | ; call IPv4_dest_to_dev |
250 | ; call IPv4_dest_to_dev |
| 251 | ; cmp edi,-1 |
251 | ; cmp edi,-1 |
| 252 | ; je .dump |
252 | ; je .dump |
| 253 | ; inc [ICMP_PACKETS_RX+edi] |
253 | ; inc [ICMP_PACKETS_RX+edi] |
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| 254 | 254 | ||
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| 255 | DEBUGF 1,"Found valid ICMP packet for socket %x\n", eax |
255 | DEBUGF 1,"socket=%x\n", eax |
| 256 | 256 | ||
| 257 | pusha |
257 | pusha |
| 258 | lea ecx, [eax + SOCKET.mutex] |
258 | lea ecx, [eax + SOCKET.mutex] |
| Line 262... | Line 262... | ||
| 262 | mov esi, edx |
262 | mov esi, edx |
| 263 | jmp SOCKET_input |
263 | jmp SOCKET_input |
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| 264 | 264 | ||
| 265 | 265 | ||
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| 266 | .checksum_mismatch: |
266 | .checksum_mismatch: |
| 267 | DEBUGF 1,"ICMP_Handler - checksum mismatch\n" |
267 | DEBUGF 1,"checksum mismatch\n" |
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| 268 | 268 | ||
| 269 | .dump: |
269 | .dump: |
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| 270 | DEBUGF 1,"ICMP_Handler - dumping\n" |
270 | DEBUGF 1,"ICMP_input: dumping\n" |