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Add general-purpose IP/port parsing function.

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OVS has functions for parsing IPv4 addresses, parsing IPv4 addresses
with a port, and parsing IPv6 addresses. What is lacking though is a
function that can take an IPv4 or IPv6 address, with or without a port.

This commit adds ipv46_parse(), which breaks the given input string into
its component parts and stores them in a sockaddr_storage structure. The
function accepts flags that determine how it should behave if a port is
present in the input string.

Signed-off-by: Mark Michelson <mmichels@redhat.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Mark Michelson
2017-11-02 11:13:56 -05:00
committed by Ben Pfaff
parent 7b997d4f3d
commit e463f310b1
2 changed files with 88 additions and 0 deletions
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10
lib/packets.h
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@@ -1339,6 +1339,16 @@ struct in6_addr ipv6_create_mask(int mask);
int ipv6_count_cidr_bits(const struct in6_addr *netmask);
bool ipv6_is_cidr(const struct in6_addr *netmask);
enum port_flags {
PORT_OPTIONAL,
PORT_REQUIRED,
PORT_FORBIDDEN,
};
char *ipv46_parse(const char *s, enum port_flags flags,
struct sockaddr_storage *ss)
OVS_WARN_UNUSED_RESULT;
bool ipv6_parse(const char *s, struct in6_addr *ip);
char *ipv6_parse_masked(const char *s, struct in6_addr *ipv6,
struct in6_addr *mask);