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Implement helpers to check for address families.

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This commit is contained in:
Heiko Wundram 2020-10-21 18:00:56 +02:00
parent 76bd56b216
commit fde6651262
1 changed files with 20 additions and 1 deletions
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21
src/fastd.h
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@ -456,10 +456,29 @@ static inline fastd_eth_addr_t fastd_buffer_dest_address(const fastd_buffer_t bu
return ret; return ret;
} }
/** Checks if a fastd_peer_address_t is the IPv4 any address */
static inline bool fastd_peer_address_is_v4_any(const fastd_peer_address_t *addr) {
return addr->sa.sa_family == AF_INET && ntohl(addr->in.sin_addr.s_addr) == INADDR_ANY;
}
/** Checks if a fastd_peer_address_t is an IPv4 multicast address */
static inline bool fastd_peer_address_is_v4_multicast(const fastd_peer_address_t *addr) {
return addr->sa.sa_family == AF_INET && IN_MULTICAST(ntohl(addr->in.sin_addr.s_addr));
}
/** Checks if a fastd_peer_address_t is an IPv6 link-local address */ /** Checks if a fastd_peer_address_t is an IPv6 link-local address */
static inline bool fastd_peer_address_is_v6_ll(const fastd_peer_address_t *addr) { static inline bool fastd_peer_address_is_v6_ll(const fastd_peer_address_t *addr) {
return (addr->sa.sa_family == AF_INET6 && IN6_IS_ADDR_LINKLOCAL(&addr->in6.sin6_addr)); return addr->sa.sa_family == AF_INET6 && IN6_IS_ADDR_LINKLOCAL(&addr->in6.sin6_addr);
}
/** Checks if a fastd_peer_address_t is an IPv6 multicast address */
static inline bool fastd_peer_address_is_v6_multicast(const fastd_peer_address_t *addr) {
return addr->sa.sa_family == AF_INET6 && IN6_IS_ADDR_MULTICAST(&addr->in6.sin6_addr);
}
/** Checks if a fastd_peer_address_t is a multicast address (IPv4 or v6) */
static inline bool fastd_peer_address_is_multicast(const fastd_peer_address_t *addr) {
return fastd_peer_address_is_v4_multicast(addr) || fastd_peer_address_is_v6_multicast(addr);
} }
/** Duplicates a string, creating a one-element string stack */ /** Duplicates a string, creating a one-element string stack */