mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-09 12:46:43 +00:00
104 lines
3.2 KiB
C
104 lines
3.2 KiB
C
/*
|
|
* 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);
|
|
}
|