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packets: Add more utility functions for IPv4 and IPv6 addresses.

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We had these functions scattered around the source tree anyway.  packets.h
is a good place to centralize them.

I do plan to introduce some additional callers.
This commit is contained in:
Ben Pfaff
2011-08-17 10:55:15 -07:00
parent e7ed3a3a5f
commit aad29cd1a1
7 changed files with 119 additions and 45 deletions
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4
lib/packets.h
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@@ -291,6 +291,8 @@ ip_is_cidr(ovs_be32 netmask)
uint32_t x = ~ntohl(netmask);
return !(x & (x + 1));
}
int ip_count_cidr_bits(ovs_be32 netmask);
void ip_format_masked(ovs_be32 ip, ovs_be32 mask, struct ds *);
#define IP_VER(ip_ihl_ver) ((ip_ihl_ver) >> 4)
#define IP_IHL(ip_ihl_ver) ((ip_ihl_ver) & 15)
@@ -423,6 +425,8 @@ static inline bool ipv6_mask_is_exact(const struct in6_addr *mask) {
void format_ipv6_addr(char *addr_str, const struct in6_addr *addr);
void print_ipv6_addr(struct ds *string, const struct in6_addr *addr);
void print_ipv6_masked(struct ds *string, const struct in6_addr *addr,
const struct in6_addr *mask);
struct in6_addr ipv6_addr_bitand(const struct in6_addr *src,
const struct in6_addr *mask);
struct in6_addr ipv6_create_mask(int mask);