datapath/linux-2.6/compat-2.6/include/linux/in.h

   1 #ifndef __LINUX_IN_WRAPPER_H
   2 #define __LINUX_IN_WRAPPER_H 1
   3
   4 #include_next <linux/in.h>
   5
   6 #ifndef HAVE_IPV4_IS_MULTICAST
   7
   8 static inline bool ipv4_is_loopback(__be32 addr)
   9 {
  10         return (addr & htonl(0xff000000)) == htonl(0x7f000000);
  11 }
  12
  13 static inline bool ipv4_is_multicast(__be32 addr)
  14 {
  15         return (addr & htonl(0xf0000000)) == htonl(0xe0000000);
  16 }
  17
  18 static inline bool ipv4_is_local_multicast(__be32 addr)
  19 {
  20         return (addr & htonl(0xffffff00)) == htonl(0xe0000000);
  21 }
  22
  23 static inline bool ipv4_is_lbcast(__be32 addr)
  24 {
  25         /* limited broadcast */
  26         return addr == htonl(INADDR_BROADCAST);
  27 }
  28
  29 static inline bool ipv4_is_zeronet(__be32 addr)
  30 {
  31         return (addr & htonl(0xff000000)) == htonl(0x00000000);
  32 }
  33
  34 #endif /* !HAVE_IPV4_IS_MULTICAST */
  35
  36 #endif