TS-2160: Add ats_is_ip_private and ats_is_ip_linklocal functions.
Project: http://git-wip-us.apache.org/repos/asf/trafficserver/repo Commit: http://git-wip-us.apache.org/repos/asf/trafficserver/commit/bf34ca01 Tree: http://git-wip-us.apache.org/repos/asf/trafficserver/tree/bf34ca01 Diff: http://git-wip-us.apache.org/repos/asf/trafficserver/diff/bf34ca01 Branch: refs/heads/5.0.x Commit: bf34ca018ff4d52447b4eb2d87d15caab961dffd Parents: 45afcfa Author: Phil Sorber <sor...@apache.org> Authored: Mon Aug 26 16:44:03 2013 -0600 Committer: Phil Sorber <sor...@apache.org> Committed: Mon Aug 26 21:20:11 2013 -0600 ---------------------------------------------------------------------- lib/ts/ink_inet.h | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bf34ca01/lib/ts/ink_inet.h ---------------------------------------------------------------------- diff --git a/lib/ts/ink_inet.h b/lib/ts/ink_inet.h index 21cf02b..518a595 100644 --- a/lib/ts/ink_inet.h +++ b/lib/ts/ink_inet.h @@ -565,6 +565,57 @@ inline bool ats_is_ip_multicast(IpEndpoint const* ip) { return ats_is_ip_multicast(&ip->sa); } +/// Check for Private. +/// @return @true if @a ip is private. +inline bool +ats_is_ip_private(sockaddr const* ip) { + bool zret = false; + if (ats_is_ip4(ip)) { + in_addr_t a = ats_ip4_addr_cast(ip); + zret = ((a & htonl(0xFF000000)) == htonl(0x0A000000)) || // 10.0.0.0/8 + ((a & htonl(0xFFC00000)) == htonl(0x64400000)) || // 100.64.0.0/10 + ((a & htonl(0xFFF00000)) == htonl(0xAC100000)) || // 172.16.0.0/12 + ((a & htonl(0xFFFF0000)) == htonl(0xC0A80000)) // 192.168.0.0/16 + ; + } else if (ats_is_ip6(ip)) { + in6_addr a = ats_ip6_addr_cast(ip); + zret = ((a.s6_addr[0] & 0xFE) == 0xFC) // fc00::/7 + ; + } + return zret; +} + +/// Check for Private. +/// @return @true if @a ip is private. +inline bool +ats_is_ip_private(IpEndpoint const* ip) { + return ats_is_ip_private(&ip->sa); +} + +/// Check for Link Local. +/// @return @true if @a ip is link local. +inline bool +ats_is_ip_linklocal(sockaddr const* ip) { + bool zret = false; + if (ats_is_ip4(ip)) { + in_addr_t a = ats_ip4_addr_cast(ip); + zret = ((a & htonl(0xFFFF0000)) == htonl(0xA9FE0000)) // 169.254.0.0/16 + ; + } else if (ats_is_ip6(ip)) { + in6_addr a = ats_ip6_addr_cast(ip); + zret = ((a.s6_addr[0] == 0xFE) && ((a.s6_addr[1] & 0xC0) == 0x80)) // fe80::/10 + ; + } + return zret; +} + +/// Check for Link Local. +/// @return @true if @a ip is link local. +inline bool +ats_is_ip_linklocal(IpEndpoint const* ip) { + return ats_is_ip_linklocal(&ip->sa); +} + /// Check for non-routable address. /// @return @c true if @a ip is a non-routable. inline bool ats_is_ip_nonroutable(sockaddr const* ip) {
