1 files changed, 103 insertions, 0 deletions
diff --git a/lib/libifconfig/libifconfig_inet6.c b/lib/libifconfig/libifconfig_inet6.c
new file mode 100644
index 000000000000..0b58faeff712
--- /dev/null
+++ b/lib/libifconfig/libifconfig_inet6.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 1983, 1993
+ *  The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <sys/param.h>
+#include <sys/ioctl.h>
+
+#include <net/if.h>
+#include <netinet/in.h>
+
+#include <errno.h>
+#include <ifaddrs.h>
+#include <string.h>
+#include <strings.h>
+
+#include "libifconfig.h"
+#include "libifconfig_internal.h"
+
+
+static int
+inet6_prefixlen(struct in6_addr *addr)
+{
+	int prefixlen = 0;
+	int i;
+
+	for (i = 0; i < 4; i++) {
+		int x = ffs(ntohl(addr->__u6_addr.__u6_addr32[i]));
+		prefixlen += x == 0 ? 0 : 33 - x;
+		if (x != 1) {
+			break;
+		}
+	}
+	return (prefixlen);
+}
+
+int
+ifconfig_inet6_get_addrinfo(ifconfig_handle_t *h,
+    const char *name, struct ifaddrs *ifa, struct ifconfig_inet6_addr *addr)
+{
+	struct sockaddr_in6 *netmask;
+	struct in6_ifreq ifr6;
+
+	bzero(addr, sizeof(*addr));
+
+	/* Set the address */
+	addr->sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
+
+	/* Set the destination address */
+	if (ifa->ifa_flags & IFF_POINTOPOINT) {
+		addr->dstin6 = (struct sockaddr_in6 *)ifa->ifa_dstaddr;
+	}
+
+	/* Set the prefixlen */
+	netmask = (struct sockaddr_in6 *)ifa->ifa_netmask;
+	addr->prefixlen = inet6_prefixlen(&netmask->sin6_addr);
+
+	/* Set the flags */
+	strlcpy(ifr6.ifr_name, name, sizeof(ifr6.ifr_name));
+	ifr6.ifr_addr = *addr->sin6;
+	if (ifconfig_ioctlwrap(h, AF_INET6, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
+		return (-1);
+	}
+	addr->flags = ifr6.ifr_ifru.ifru_flags6;
+
+	/* Set the lifetimes */
+	memset(&addr->lifetime, 0, sizeof(addr->lifetime));
+	ifr6.ifr_addr = *addr->sin6;
+	if (ifconfig_ioctlwrap(h, AF_INET6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) {
+		return (-1);
+	}
+	addr->lifetime = ifr6.ifr_ifru.ifru_lifetime; /* struct copy */
+
+	/* Set the vhid */
+	if (ifa->ifa_data) {
+		addr->vhid = ((struct if_data *)ifa->ifa_data)->ifi_vhid;
+	}
+
+	return (0);
+}