diff options
Diffstat (limited to 'src/ipv6.c')
| -rw-r--r-- | src/ipv6.c | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -1532,6 +1532,44 @@ ipv6_tryaddlinklocal(struct interface *ifp) return ipv6_addlinklocal(ifp); } +void +ipv6_setscope(struct sockaddr_in6 *sin, unsigned int ifindex) +{ + +#ifdef __KAME__ + /* KAME based systems want to store the scope inside the sin6_addr + * for link local addresses */ + if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) { + uint16_t scope = htons((uint16_t)ifindex); + memcpy(&sin->sin6_addr.s6_addr[2], &scope, + sizeof(scope)); + } + sin->sin6_scope_id = 0; +#else + if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) + sin->sin6_scope_id = ifindex; + else + sin->sin6_scope_id = 0; +#endif +} + +unsigned int +ipv6_getscope(const struct sockaddr_in6 *sin) +{ +#ifdef __KAME__ + uint16_t scope; +#endif + + if (!IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr)) + return 0; +#ifdef __KAME__ + memcpy(&scope, &sin->sin6_addr.s6_addr[2], sizeof(scope)); + return (unsigned int)ntohs(scope); +#else + return (unsigned int)sin->sin6_scope_id; +#endif +} + struct ipv6_addr * ipv6_newaddr(struct interface *ifp, const struct in6_addr *addr, uint8_t prefix_len, unsigned int flags) |