diff options
-rw-r--r-- | include/linux/in.h | 87 |
1 files changed, 74 insertions, 13 deletions
diff --git a/include/linux/in.h b/include/linux/in.h index a8f00cac8f79..f8d607379017 100644 --- a/include/linux/in.h +++ b/include/linux/in.h | |||
@@ -246,21 +246,82 @@ struct sockaddr_in { | |||
246 | #include <asm/byteorder.h> | 246 | #include <asm/byteorder.h> |
247 | 247 | ||
248 | #ifdef __KERNEL__ | 248 | #ifdef __KERNEL__ |
249 | /* Some random defines to make it easier in the kernel.. */ | 249 | |
250 | #define LOOPBACK(x) (((x) & htonl(0xff000000)) == htonl(0x7f000000)) | 250 | static inline bool ipv4_is_loopback(__be32 addr) |
251 | #define MULTICAST(x) (((x) & htonl(0xf0000000)) == htonl(0xe0000000)) | 251 | { |
252 | #define BADCLASS(x) (((x) & htonl(0xf0000000)) == htonl(0xf0000000)) | 252 | return (addr & htonl(0xff000000)) == htonl(0x7f000000); |
253 | #define ZERONET(x) (((x) & htonl(0xff000000)) == htonl(0x00000000)) | 253 | } |
254 | #define LOCAL_MCAST(x) (((x) & htonl(0xFFFFFF00)) == htonl(0xE0000000)) | 254 | |
255 | static inline bool ipv4_is_multicast(__be32 addr) | ||
256 | { | ||
257 | return (addr & htonl(0xf0000000)) == htonl(0xe0000000); | ||
258 | } | ||
259 | |||
260 | static inline bool ipv4_is_local_multicast(__be32 addr) | ||
261 | { | ||
262 | return (addr & htonl(0xffffff00)) == htonl(0xe0000000); | ||
263 | } | ||
264 | |||
265 | static inline bool ipv4_is_badclass(__be32 addr) | ||
266 | { | ||
267 | return (addr & htonl(0xf0000000)) == htonl(0xf0000000); | ||
268 | } | ||
269 | |||
270 | static inline bool ipv4_is_zeronet(__be32 addr) | ||
271 | { | ||
272 | return (addr & htonl(0xff000000)) == htonl(0x00000000); | ||
273 | } | ||
274 | |||
275 | #define LOOPBACK(x) ipv4_is_loopback(x) | ||
276 | #define MULTICAST(x) ipv4_is_multicast(x) | ||
277 | #define BADCLASS(x) ipv4_is_badclass(x) | ||
278 | #define ZERONET(x) ipv4_is_zeronet(x) | ||
279 | #define LOCAL_MCAST(x) ipv4_is_local_multicast(x) | ||
255 | 280 | ||
256 | /* Special-Use IPv4 Addresses (RFC3330) */ | 281 | /* Special-Use IPv4 Addresses (RFC3330) */ |
257 | #define PRIVATE_10(x) (((x) & htonl(0xff000000)) == htonl(0x0A000000)) | 282 | |
258 | #define LINKLOCAL_169(x) (((x) & htonl(0xffff0000)) == htonl(0xA9FE0000)) | 283 | static inline bool ipv4_is_private_10(__be32 addr) |
259 | #define PRIVATE_172(x) (((x) & htonl(0xfff00000)) == htonl(0xAC100000)) | 284 | { |
260 | #define TEST_192(x) (((x) & htonl(0xffffff00)) == htonl(0xC0000200)) | 285 | return (addr & htonl(0xff000000)) == htonl(0x0a000000); |
261 | #define ANYCAST_6TO4(x) (((x) & htonl(0xffffff00)) == htonl(0xC0586300)) | 286 | } |
262 | #define PRIVATE_192(x) (((x) & htonl(0xffff0000)) == htonl(0xC0A80000)) | 287 | |
263 | #define TEST_198(x) (((x) & htonl(0xfffe0000)) == htonl(0xC6120000)) | 288 | static inline bool ipv4_is_private_172(__be32 addr) |
289 | { | ||
290 | return (addr & htonl(0xfff00000)) == htonl(0xac100000); | ||
291 | } | ||
292 | |||
293 | static inline bool ipv4_is_private_192(__be32 addr) | ||
294 | { | ||
295 | return (addr & htonl(0xffff0000)) == htonl(0xc0a80000); | ||
296 | } | ||
297 | |||
298 | static inline bool ipv4_is_linklocal_169(__be32 addr) | ||
299 | { | ||
300 | return (addr & htonl(0xffff0000)) == htonl(0xa9fe0000); | ||
301 | } | ||
302 | |||
303 | static inline bool ipv4_is_anycast_6to4(__be32 addr) | ||
304 | { | ||
305 | return (addr & htonl(0xffffff00)) == htonl(0xc0586300); | ||
306 | } | ||
307 | |||
308 | static inline bool ipv4_is_test_192(__be32 addr) | ||
309 | { | ||
310 | return (addr & htonl(0xffffff00)) == htonl(0xc0000200); | ||
311 | } | ||
312 | |||
313 | static inline bool ipv4_is_test_198(__be32 addr) | ||
314 | { | ||
315 | return (addr & htonl(0xfffe0000)) == htonl(0xc6120000); | ||
316 | } | ||
264 | #endif | 317 | #endif |
265 | 318 | ||
319 | #define PRIVATE_10(x) ipv4_is_private_10(x) | ||
320 | #define LINKLOCAL_169(x) ipv4_is_linklocal_169(x) | ||
321 | #define PRIVATE_172(x) ipv4_is_private_172(x) | ||
322 | #define TEST_192(x) ipv4_is_test_192(x) | ||
323 | #define ANYCAST_6TO4(x) ipv4_is_anycast_6to4(x) | ||
324 | #define PRIVATE_192(x) ipv4_is_private_192(x) | ||
325 | #define TEST_198(x) ipv4_is_test_198(x) | ||
326 | |||
266 | #endif /* _LINUX_IN_H */ | 327 | #endif /* _LINUX_IN_H */ |