diff options
Diffstat (limited to 'node/InetAddress.hpp')
| -rw-r--r-- | node/InetAddress.hpp | 43 |
1 files changed, 30 insertions, 13 deletions
diff --git a/node/InetAddress.hpp b/node/InetAddress.hpp index 381c6ba2..2ed23761 100644 --- a/node/InetAddress.hpp +++ b/node/InetAddress.hpp @@ -44,8 +44,10 @@ namespace ZeroTier { /** * Extends sockaddr_storage with friendly C++ methods * - * This adds no new fields, so it can be memcpy'd and assigned to/from - * raw sockaddr_storage structures. This is used in a few places. + * This is basically a "mixin" for sockaddr_storage. It adds methods and + * operators, but does not modify the structure. This can be cast to/from + * sockaddr_storage and used interchangeably. Don't change this as it's + * used in a few places. */ struct InetAddress : public sockaddr_storage { @@ -69,6 +71,26 @@ struct InetAddress : public sockaddr_storage */ static const InetAddress DEFAULT6; + /** + * IP address scope + * + * Be sure the integer values of these start at 0 and increment + * monotonically without gaps, as they're used as an array index. + * The NONE entry must be the last, since it's the count. It's + * okay to change these since they are not exported via the API. + */ + enum IpScope + { + IP_SCOPE_LOOPBACK = 0, // 127.0.0.1 + IP_SCOPE_MULTICAST = 1, // 224.0.0.0 and other multicast IPs + IP_SCOPE_LINK_LOCAL = 2, // 169.254.x.x, IPv6 LL + IP_SCOPE_PRIVATE = 3, // 10.x.x.x, etc. + IP_SCOPE_PSEUDOPRIVATE = 4, // 28.x.x.x, etc. -- unofficially unrouted IP blocks often "bogarted" + IP_SCOPE_SHARED = 5, // 100.64.0.0/10, shared space for e.g. carrier-grade NAT + IP_SCOPE_GLOBAL = 6, // globally routable IP address (all others) + IP_SCOPE_NONE = 7 // not an IP address -- also the number of classes, must be last entry + }; + InetAddress() throw() { memset(this,0,sizeof(InetAddress)); } InetAddress(const InetAddress &a) throw() { memcpy(this,&a,sizeof(InetAddress)); } InetAddress(const struct sockaddr_storage &ss) throw() { *this = ss; } @@ -169,6 +191,12 @@ struct InetAddress : public sockaddr_storage } /** + * @return IP scope classification (e.g. loopback, link-local, private, global) + */ + IpScope ipScope() const + throw(); + + /** * Set from a string-format IP and a port * * @param ip IP address in V4 or V6 ASCII notation @@ -206,17 +234,6 @@ struct InetAddress : public sockaddr_storage } /** - * @return True if this is a link-local IP address - */ - bool isLinkLocal() const - throw(); - - /** - * @return True if this is a loopback address - */ - inline bool isLoopback() const throw() { return ((*this == LO4)||(*this == LO6)); } - - /** * @return ASCII IP/port format representation */ std::string toString() const; |