diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ip.c | 4 | ||||
| -rw-r--r-- | lib/ip.h | 7 |
2 files changed, 10 insertions, 1 deletions
@@ -364,7 +364,9 @@ ip4_class_mask(ip4_addr ad) { u32 m, a = _I(ad); - if (a < 0x80000000) + if (a == 0x00000000) + m = 0x00000000; + else if (a < 0x80000000) m = 0xff000000; else if (a < 0xc0000000) m = 0xffff0000; @@ -15,8 +15,11 @@ #include "lib/unaligned.h" +#define IP4_ALL_NODES ipa_build4(224, 0, 0, 1) +#define IP4_ALL_ROUTERS ipa_build4(224, 0, 0, 2) #define IP4_OSPF_ALL_ROUTERS ipa_build4(224, 0, 0, 5) #define IP4_OSPF_DES_ROUTERS ipa_build4(224, 0, 0, 6) +#define IP4_RIP_ROUTERS ipa_build4(224, 0, 0, 9) #define IP6_ALL_NODES ipa_build6(0xFF020000, 0, 0, 1) #define IP6_ALL_ROUTERS ipa_build6(0xFF020000, 0, 0, 2) @@ -32,6 +35,10 @@ #define IP_PREC_INTERNET_CONTROL 0xc0 +#define IP4_HEADER_LENGTH 20 +#define IP6_HEADER_LENGTH 40 +#define UDP_HEADER_LENGTH 8 + #ifdef IPV6 #define MAX_PREFIX_LENGTH 128 |