| … | |
… | |
| 255 | icmpv4_fd = setup_socket (PROT_ICMPv4, PF_INET, SOCK_RAW, IPPROTO_ICMP); |
255 | icmpv4_fd = setup_socket (PROT_ICMPv4, PF_INET, SOCK_RAW, IPPROTO_ICMP); |
| 256 | |
256 | |
| 257 | if (icmpv4_fd < 0) |
257 | if (icmpv4_fd < 0) |
| 258 | return -1; |
258 | return -1; |
| 259 | |
259 | |
|
|
260 | // no clue where trhis is actually defined |
|
|
261 | #if !defined(ICMP_FILTER) && defined(__linux) |
|
|
262 | #define ICMP_FILTER 1 |
|
|
263 | #endif |
|
|
264 | |
| 260 | #ifdef ICMP_FILTER |
265 | #ifdef ICMP_FILTER |
| 261 | { |
266 | { |
| 262 | icmp_filter oval; |
267 | uint32_t oval; |
| 263 | oval.data = 0xffffffff; |
268 | oval = 0; |
| 264 | if (::conf.icmp_type < 32) |
269 | if (::conf.icmp_type < 32) |
| 265 | oval.data &= ~(1 << ::conf.icmp_type); |
270 | oval |= 1 << ::conf.icmp_type; |
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|
271 | oval = ~oval; |
| 266 | |
272 | |
| 267 | setsockopt (icmpv4_fd, SOL_RAW, ICMP_FILTER, &oval, sizeof oval); |
273 | setsockopt (icmpv4_fd, SOL_RAW, ICMP_FILTER, &oval, sizeof oval); |
| 268 | } |
274 | } |
| 269 | #endif |
275 | #endif |
| 270 | |
276 | |
