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head/sys/netpfil/ipfw/nat64/nat64_translate.h
| Show First 20 Lines • Show All 117 Lines • ▼ Show 20 Lines | if (addr->s6_addr16[0] == 0 || /* 0000::/8 Reserved by IETF */ | ||||
| return (1); | return (1); | ||||
| return (0); | return (0); | ||||
| } | } | ||||
| static inline int | static inline int | ||||
| nat64_check_ip4(in_addr_t ia) | nat64_check_ip4(in_addr_t ia) | ||||
| { | { | ||||
| /* IN_LOOPBACK */ | /* These checks are ordered from most likely to least */ | ||||
| if ((ia & htonl(0xff000000)) == htonl(0x7f000000)) | if (IN_MULTICAST(ntohl(ia)) || IN_LOOPBACK(ntohl(ia)) || | ||||
| return (1); | IN_LINKLOCAL(ntohl(ia)) || IN_EXPERIMENTAL(ntohl(ia))) | ||||
| /* IN_LINKLOCAL */ | |||||
| if ((ia & htonl(0xffff0000)) == htonl(0xa9fe0000)) | |||||
| return (1); | |||||
| /* IN_MULTICAST & IN_EXPERIMENTAL */ | |||||
| if ((ia & htonl(0xe0000000)) == htonl(0xe0000000)) | |||||
| return (1); | return (1); | ||||
| return (0); | return (0); | ||||
| } | } | ||||
| /* Well-known prefix 64:ff9b::/96 */ | /* Well-known prefix 64:ff9b::/96 */ | ||||
| #define IPV6_ADDR_INT32_WKPFX htonl(0x64ff9b) | #define IPV6_ADDR_INT32_WKPFX htonl(0x64ff9b) | ||||
| #define IN6_IS_ADDR_WKPFX(a) \ | #define IN6_IS_ADDR_WKPFX(a) \ | ||||
| ((a)->s6_addr32[0] == IPV6_ADDR_INT32_WKPFX && \ | ((a)->s6_addr32[0] == IPV6_ADDR_INT32_WKPFX && \ | ||||
| Show All 21 Lines | |||||