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Date:      Tue, 15 Oct 2013 11:25:12 +0000 (UTC)
From:      "Andrey V. Elsukov" <ae@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-user@freebsd.org
Subject:   svn commit: r256524 - user/ae/inet6/sys/netinet6
Message-ID:  <201310151125.r9FBPCiS045639@svn.freebsd.org>
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Author: ae
Date: Tue Oct 15 11:25:12 2013
New Revision: 256524
URL: http://svnweb.freebsd.org/changeset/base/256524

Log:
  Add in6ifa_ifwithaddr() function.
  It is similar to ifa_ifwithaddr, but uses in6_addr hash for fast lookup.

Modified:
  user/ae/inet6/sys/netinet6/in6.c
  user/ae/inet6/sys/netinet6/in6_var.h

Modified: user/ae/inet6/sys/netinet6/in6.c
==============================================================================
--- user/ae/inet6/sys/netinet6/in6.c	Tue Oct 15 11:18:37 2013	(r256523)
+++ user/ae/inet6/sys/netinet6/in6.c	Tue Oct 15 11:25:12 2013	(r256524)
@@ -1976,6 +1976,29 @@ in6ifa_ifpforlinklocal(struct ifnet *ifp
 
 
 /*
+ * find the internet address corresponding to a given address.
+ * ifaddr is returned referenced.
+ */
+struct in6_ifaddr *
+in6ifa_ifwithaddr(const struct in6_addr *addr, uint32_t zoneid)
+{
+	struct in6_ifaddr *ia;
+
+	IN6_IFADDR_RLOCK();
+	LIST_FOREACH(ia, IN6ADDR_HASH(addr), ia6_hash) {
+		if (IN6_ARE_ADDR_EQUAL(IA6_IN6(ia), addr)) {
+			if (zoneid != 0 &&
+			    zoneid != ia->ia_addr.sin6_scope_id)
+				continue;
+			ifa_ref(&ia->ia_ifa);
+			break;
+		}
+	}
+	IN6_IFADDR_RUNLOCK();
+	return (ia);
+}
+
+/*
  * find the internet address corresponding to a given interface and address.
  * ifaddr is returned referenced.
  */

Modified: user/ae/inet6/sys/netinet6/in6_var.h
==============================================================================
--- user/ae/inet6/sys/netinet6/in6_var.h	Tue Oct 15 11:18:37 2013	(r256523)
+++ user/ae/inet6/sys/netinet6/in6_var.h	Tue Oct 15 11:25:12 2013	(r256524)
@@ -814,6 +814,7 @@ void	in6_setmaxmtu(void);
 int	in6_if2idlen(struct ifnet *);
 struct in6_ifaddr *in6ifa_ifpforlinklocal(struct ifnet *, int);
 struct in6_ifaddr *in6ifa_ifpwithaddr(struct ifnet *, struct in6_addr *);
+struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t);
 struct in6_ifaddr *in6ifa_llaonifp(struct ifnet *);
 char	*ip6_sprintf(char *, const struct in6_addr *);
 int	in6_addr2zoneid(struct ifnet *, struct in6_addr *, u_int32_t *);

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