/* Interface's address information get. */
int
ifam_read (struct ifa_msghdr *ifam)
{
struct interface *ifp;
union sockunion addr, mask, gate;
/* Check does this interface exist or not. */
ifp = if_lookup_by_index (ifam->ifam_index);
if (ifp == NULL)
{
zlog_warn ("no interface for index %d", ifam->ifam_index);
return -1;
}
/* Allocate and read address information. */
ifam_read_mesg (ifam, &addr, &mask, &gate);
/* Check interface flag for implicit up of the interface. */
if_refresh (ifp);
/* Add connected address. */
switch (sockunion_family (&addr))
{
case AF_INET:
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv4 (ifp, 0, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&gate.sin.sin_addr, NULL);
else
connected_delete_ipv4 (ifp, 0, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&gate.sin.sin_addr, NULL);
break;
#ifdef HAVE_IPV6
case AF_INET6:
/* Unset interface index from link-local address when IPv6 stack
is KAME. */
if (IN6_IS_ADDR_LINKLOCAL (&addr.sin6.sin6_addr))
SET_IN6_LINKLOCAL_IFINDEX (addr.sin6.sin6_addr, 0);
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv6 (ifp,
&addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&gate.sin6.sin6_addr);
else
connected_delete_ipv6 (ifp,
&addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&gate.sin6.sin6_addr);
break;
#endif /* HAVE_IPV6 */
default:
/* Unsupported family silently ignore... */
break;
}
return 0;
}
/* Utility function of convert between struct prefix <=> union sockunion.
* FIXME This function isn't used anywhere. */
struct prefix *
sockunion2prefix (const union sockunion *dest,
const union sockunion *mask)
{
if (dest->sa.sa_family == AF_INET)
{
struct prefix_ipv4 *p;
p = prefix_ipv4_new ();
p->family = AF_INET;
p->prefix = dest->sin.sin_addr;
p->prefixlen = ip_masklen (mask->sin.sin_addr);
return (struct prefix *) p;
}
#ifdef HAVE_IPV6
if (dest->sa.sa_family == AF_INET6)
{
struct prefix_ipv6 *p;
p = prefix_ipv6_new ();
p->family = AF_INET6;
p->prefixlen = ip6_masklen (mask->sin6.sin6_addr);
memcpy (&p->prefix, &dest->sin6.sin6_addr, sizeof (struct in6_addr));
return (struct prefix *) p;
}
#endif /* HAVE_IPV6 */
return NULL;
}
void
rtm_read (struct rt_msghdr *rtm)
{
int flags;
u_char zebra_flags;
union sockunion dest, mask, gate;
zebra_flags = 0;
/* Discard self send message. */
if (rtm->rtm_type != RTM_GET
&& (rtm->rtm_pid == pid || rtm->rtm_pid == old_pid))
return;
/* Read destination and netmask and gateway from rtm message
structure. */
flags = rtm_read_mesg (rtm, &dest, &mask, &gate);
#ifdef RTF_CLONED /*bsdi, netbsd 1.6*/
if (flags & RTF_CLONED)
return;
#endif
#ifdef RTF_WASCLONED /*freebsd*/
if (flags & RTF_WASCLONED)
return;
#endif
if ((rtm->rtm_type == RTM_ADD) && ! (flags & RTF_UP))
return;
/* Ignore route which has both HOST and GATEWAY attribute. */
if ((flags & RTF_GATEWAY) && (flags & RTF_HOST))
return;
/* This is connected route. */
if (! (flags & RTF_GATEWAY))
return;
if (flags & RTF_PROTO1)
SET_FLAG (zebra_flags, ZEBRA_FLAG_SELFROUTE);
/* This is persistent route. */
if (flags & RTF_STATIC)
SET_FLAG (zebra_flags, ZEBRA_FLAG_STATIC);
if (dest.sa.sa_family == AF_INET)
{
struct prefix_ipv4 p;
p.family = AF_INET;
p.prefix = dest.sin.sin_addr;
p.prefixlen = ip_masklen (mask.sin.sin_addr);
if (rtm->rtm_type == RTM_GET || rtm->rtm_type == RTM_ADD)
rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin.sin_addr, 0, 0, 0, 0);
else
rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin.sin_addr, 0, 0);
}
#ifdef HAVE_IPV6
if (dest.sa.sa_family == AF_INET6)
{
struct prefix_ipv6 p;
unsigned int ifindex = 0;
p.family = AF_INET6;
p.prefix = dest.sin6.sin6_addr;
p.prefixlen = ip6_masklen (mask.sin6.sin6_addr);
#ifdef KAME
if (IN6_IS_ADDR_LINKLOCAL (&gate.sin6.sin6_addr))
{
ifindex = IN6_LINKLOCAL_IFINDEX (gate.sin6.sin6_addr);
SET_IN6_LINKLOCAL_IFINDEX (gate.sin6.sin6_addr, 0);
}
#endif /* KAME */
if (rtm->rtm_type == RTM_GET || rtm->rtm_type == RTM_ADD)
rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin6.sin6_addr, ifindex, 0);
else
rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin6.sin6_addr, ifindex, 0);
}
#endif /* HAVE_IPV6 */
}
void
rtm_read (struct rt_msghdr *rtm)
{
int flags;
u_char zebra_flags;
union sockunion dest, mask, gate;
char ifname[INTERFACE_NAMSIZ + 1];
short ifnlen = 0;
zebra_flags = 0;
/* Read destination and netmask and gateway from rtm message
structure. */
flags = rtm_read_mesg (rtm, &dest, &mask, &gate, ifname, &ifnlen);
if (!(flags & RTF_DONE))
return;
if (IS_ZEBRA_DEBUG_KERNEL)
zlog_debug ("%s: got rtm of type %d (%s)", __func__, rtm->rtm_type,
lookup (rtm_type_str, rtm->rtm_type));
#ifdef RTF_CLONED /*bsdi, netbsd 1.6*/
if (flags & RTF_CLONED)
return;
#endif
#ifdef RTF_WASCLONED /*freebsd*/
if (flags & RTF_WASCLONED)
return;
#endif
if ((rtm->rtm_type == RTM_ADD) && ! (flags & RTF_UP))
return;
/* This is connected route. */
if (! (flags & RTF_GATEWAY))
return;
if (flags & RTF_PROTO1)
SET_FLAG (zebra_flags, ZEBRA_FLAG_SELFROUTE);
/* This is persistent route. */
if (flags & RTF_STATIC)
SET_FLAG (zebra_flags, ZEBRA_FLAG_STATIC);
/* This is a reject or blackhole route */
if (flags & RTF_REJECT)
SET_FLAG (zebra_flags, ZEBRA_FLAG_REJECT);
if (flags & RTF_BLACKHOLE)
SET_FLAG (zebra_flags, ZEBRA_FLAG_BLACKHOLE);
if (dest.sa.sa_family == AF_INET)
{
struct prefix_ipv4 p;
p.family = AF_INET;
p.prefix = dest.sin.sin_addr;
if (flags & RTF_HOST)
p.prefixlen = IPV4_MAX_PREFIXLEN;
else
p.prefixlen = ip_masklen (mask.sin.sin_addr);
/* Catch self originated messages and match them against our current RIB.
* At the same time, ignore unconfirmed messages, they should be tracked
* by rtm_write() and kernel_rtm_ipv4().
*/
if (rtm->rtm_type != RTM_GET && rtm->rtm_pid == pid)
{
char buf[INET_ADDRSTRLEN], gate_buf[INET_ADDRSTRLEN];
int ret;
if (! IS_ZEBRA_DEBUG_RIB)
return;
ret = rib_lookup_ipv4_route (&p, &gate);
inet_ntop (AF_INET, &p.prefix, buf, INET_ADDRSTRLEN);
switch (rtm->rtm_type)
{
case RTM_ADD:
case RTM_GET:
case RTM_CHANGE:
/* The kernel notifies us about a new route in FIB created by us.
Do we have a correspondent entry in our RIB? */
switch (ret)
{
case ZEBRA_RIB_NOTFOUND:
zlog_debug ("%s: %s %s/%d: desync: RR isn't yet in RIB, while already in FIB",
__func__, lookup (rtm_type_str, rtm->rtm_type), buf, p.prefixlen);
break;
case ZEBRA_RIB_FOUND_CONNECTED:
case ZEBRA_RIB_FOUND_NOGATE:
inet_ntop (AF_INET, &gate.sin.sin_addr, gate_buf, INET_ADDRSTRLEN);
zlog_debug ("%s: %s %s/%d: desync: RR is in RIB, but gate differs (ours is %s)",
__func__, lookup (rtm_type_str, rtm->rtm_type), buf, p.prefixlen, gate_buf);
break;
case ZEBRA_RIB_FOUND_EXACT: /* RIB RR == FIB RR */
zlog_debug ("%s: %s %s/%d: done Ok",
__func__, lookup (rtm_type_str, rtm->rtm_type), buf, p.prefixlen);
rib_lookup_and_dump (&p);
return;
break;
}
break;
case RTM_DELETE:
/* The kernel notifies us about a route deleted by us. Do we still
have it in the RIB? Do we have anything instead? */
switch (ret)
{
case ZEBRA_RIB_FOUND_EXACT:
zlog_debug ("%s: %s %s/%d: desync: RR is still in RIB, while already not in FIB",
__func__, lookup (rtm_type_str, rtm->rtm_type), buf, p.prefixlen);
rib_lookup_and_dump (&p);
break;
case ZEBRA_RIB_FOUND_CONNECTED:
case ZEBRA_RIB_FOUND_NOGATE:
zlog_debug ("%s: %s %s/%d: desync: RR is still in RIB, plus gate differs",
__func__, lookup (rtm_type_str, rtm->rtm_type), buf, p.prefixlen);
rib_lookup_and_dump (&p);
break;
case ZEBRA_RIB_NOTFOUND: /* RIB RR == FIB RR */
zlog_debug ("%s: %s %s/%d: done Ok",
__func__, lookup (rtm_type_str, rtm->rtm_type), buf, p.prefixlen);
rib_lookup_and_dump (&p);
return;
break;
}
break;
default:
zlog_debug ("%s: %s/%d: warning: loopback RTM of type %s received",
__func__, buf, p.prefixlen, lookup (rtm_type_str, rtm->rtm_type));
}
return;
}
/* Change, delete the old prefix, we have no further information
* to specify the route really
*/
if (rtm->rtm_type == RTM_CHANGE)
rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags, &p,
NULL, 0, 0);
if (rtm->rtm_type == RTM_GET
|| rtm->rtm_type == RTM_ADD
|| rtm->rtm_type == RTM_CHANGE)
rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin.sin_addr, NULL, 0, 0, 0, 0, rtm->rtm_protocol);
else
rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin.sin_addr, 0, 0);
}
#ifdef HAVE_IPV6
if (dest.sa.sa_family == AF_INET6)
{
/* One day we might have a debug section here like one in the
* IPv4 case above. Just ignore own messages at the moment.
*/
if (rtm->rtm_type != RTM_GET && rtm->rtm_pid == pid)
return;
struct prefix_ipv6 p;
unsigned int ifindex = 0;
p.family = AF_INET6;
p.prefix = dest.sin6.sin6_addr;
if (flags & RTF_HOST)
p.prefixlen = IPV6_MAX_PREFIXLEN;
else
p.prefixlen = ip6_masklen (mask.sin6.sin6_addr);
#ifdef KAME
if (IN6_IS_ADDR_LINKLOCAL (&gate.sin6.sin6_addr))
{
ifindex = IN6_LINKLOCAL_IFINDEX (gate.sin6.sin6_addr);
SET_IN6_LINKLOCAL_IFINDEX (gate.sin6.sin6_addr, 0);
}
#endif /* KAME */
/* CHANGE: delete the old prefix, we have no further information
* to specify the route really
*/
if (rtm->rtm_type == RTM_CHANGE)
rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags, &p,
NULL, 0, 0);
if (rtm->rtm_type == RTM_GET
|| rtm->rtm_type == RTM_ADD
|| rtm->rtm_type == RTM_CHANGE)
rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin6.sin6_addr, ifindex, 0, 0, 0);
else
rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin6.sin6_addr, ifindex, 0);
}
#endif /* HAVE_IPV6 */
}
/* Interface's address information get. */
int
ifam_read (struct ifa_msghdr *ifam)
{
struct interface *ifp = NULL;
union sockunion addr, mask, brd;
char ifname[INTERFACE_NAMSIZ];
short ifnlen = 0;
char isalias = 0;
int flags = 0;
ifname[0] = ifname[INTERFACE_NAMSIZ - 1] = '\0';
/* Allocate and read address information. */
ifam_read_mesg (ifam, &addr, &mask, &brd, ifname, &ifnlen);
if ((ifp = if_lookup_by_index(ifam->ifam_index)) == NULL)
{
zlog_warn ("%s: no interface for ifname %s, index %d",
__func__, ifname, ifam->ifam_index);
return -1;
}
if (ifnlen && strncmp (ifp->name, ifname, INTERFACE_NAMSIZ))
isalias = 1;
/* N.B. The info in ifa_msghdr does not tell us whether the RTA_BRD
field contains a broadcast address or a peer address, so we are forced to
rely upon the interface type. */
if (if_is_pointopoint(ifp))
SET_FLAG(flags, ZEBRA_IFA_PEER);
#if 0
/* it might seem cute to grab the interface metric here, however
* we're processing an address update message, and so some systems
* (e.g. FBSD) dont bother to fill in ifam_metric. Disabled, but left
* in deliberately, as comment.
*/
ifp->metric = ifam->ifam_metric;
#endif
/* Add connected address. */
switch (sockunion_family (&addr))
{
case AF_INET:
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv4 (ifp, flags, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&brd.sin.sin_addr,
(isalias ? ifname : NULL));
else
connected_delete_ipv4 (ifp, flags, &addr.sin.sin_addr,
ip_masklen (mask.sin.sin_addr),
&brd.sin.sin_addr);
break;
#ifdef HAVE_IPV6
case AF_INET6:
/* Unset interface index from link-local address when IPv6 stack
is KAME. */
if (IN6_IS_ADDR_LINKLOCAL (&addr.sin6.sin6_addr))
SET_IN6_LINKLOCAL_IFINDEX (addr.sin6.sin6_addr, 0);
if (ifam->ifam_type == RTM_NEWADDR)
connected_add_ipv6 (ifp, flags, &addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&brd.sin6.sin6_addr,
(isalias ? ifname : NULL));
else
connected_delete_ipv6 (ifp,
&addr.sin6.sin6_addr,
ip6_masklen (mask.sin6.sin6_addr),
&brd.sin6.sin6_addr);
break;
#endif /* HAVE_IPV6 */
default:
/* Unsupported family silently ignore... */
break;
}
/* Check interface flag for implicit up of the interface. */
if_refresh (ifp);
#ifdef SUNOS_5
/* In addition to lacking IFANNOUNCE, on SUNOS IFF_UP is strange.
* See comments for SUNOS_5 in interface.c::if_flags_mangle.
*
* Here we take care of case where the real IFF_UP was previously
* unset (as kept in struct zebra_if.primary_state) and the mangled
* IFF_UP (ie IFF_UP set || listcount(connected) has now transitioned
* to unset due to the lost non-primary address having DELADDR'd.
*
* we must delete the interface, because in between here and next
* event for this interface-name the administrator could unplumb
* and replumb the interface.
*/
if (!if_is_up (ifp))
if_delete_update (ifp);
#endif /* SUNOS_5 */
return 0;
}
/* Address read from struct ifa_msghdr. */
static void
ifam_read_mesg (struct ifa_msghdr *ifm,
union sockunion *addr,
union sockunion *mask,
union sockunion *brd,
char *ifname,
short *ifnlen)
{
caddr_t pnt, end;
union sockunion dst;
union sockunion gateway;
pnt = (caddr_t)(ifm + 1);
end = ((caddr_t)ifm) + ifm->ifam_msglen;
/* Be sure structure is cleared */
memset (mask, 0, sizeof (union sockunion));
memset (addr, 0, sizeof (union sockunion));
memset (brd, 0, sizeof (union sockunion));
memset (&dst, 0, sizeof (union sockunion));
memset (&gateway, 0, sizeof (union sockunion));
/* We fetch each socket variable into sockunion. */
RTA_ADDR_GET (&dst, RTA_DST, ifm->ifam_addrs, pnt);
RTA_ADDR_GET (&gateway, RTA_GATEWAY, ifm->ifam_addrs, pnt);
RTA_ATTR_GET (mask, RTA_NETMASK, ifm->ifam_addrs, pnt);
RTA_ADDR_GET (NULL, RTA_GENMASK, ifm->ifam_addrs, pnt);
RTA_NAME_GET (ifname, RTA_IFP, ifm->ifam_addrs, pnt, *ifnlen);
RTA_ADDR_GET (addr, RTA_IFA, ifm->ifam_addrs, pnt);
RTA_ADDR_GET (NULL, RTA_AUTHOR, ifm->ifam_addrs, pnt);
RTA_ADDR_GET (brd, RTA_BRD, ifm->ifam_addrs, pnt);
if (IS_ZEBRA_DEBUG_KERNEL)
{
switch (sockunion_family(addr))
{
case AF_INET:
{
char buf[4][INET_ADDRSTRLEN];
zlog_debug ("%s: ifindex %d, ifname %s, ifam_addrs 0x%x, "
"ifam_flags 0x%x, addr %s/%d broad %s dst %s "
"gateway %s",
__func__, ifm->ifam_index,
(ifnlen ? ifname : "(nil)"), ifm->ifam_addrs,
ifm->ifam_flags,
inet_ntop(AF_INET,&addr->sin.sin_addr,
buf[0],sizeof(buf[0])),
ip_masklen(mask->sin.sin_addr),
inet_ntop(AF_INET,&brd->sin.sin_addr,
buf[1],sizeof(buf[1])),
inet_ntop(AF_INET,&dst.sin.sin_addr,
buf[2],sizeof(buf[2])),
inet_ntop(AF_INET,&gateway.sin.sin_addr,
buf[3],sizeof(buf[3])));
}
break;
#ifdef HAVE_IPV6
case AF_INET6:
{
char buf[4][INET6_ADDRSTRLEN];
zlog_debug ("%s: ifindex %d, ifname %s, ifam_addrs 0x%x, "
"ifam_flags 0x%x, addr %s/%d broad %s dst %s "
"gateway %s",
__func__, ifm->ifam_index,
(ifnlen ? ifname : "(nil)"), ifm->ifam_addrs,
ifm->ifam_flags,
inet_ntop(AF_INET6,&addr->sin6.sin6_addr,
buf[0],sizeof(buf[0])),
ip6_masklen(mask->sin6.sin6_addr),
inet_ntop(AF_INET6,&brd->sin6.sin6_addr,
buf[1],sizeof(buf[1])),
inet_ntop(AF_INET6,&dst.sin6.sin6_addr,
buf[2],sizeof(buf[2])),
inet_ntop(AF_INET6,&gateway.sin6.sin6_addr,
buf[3],sizeof(buf[3])));
}
break;
#endif /* HAVE_IPV6 */
default:
zlog_debug ("%s: ifindex %d, ifname %s, ifam_addrs 0x%x",
__func__, ifm->ifam_index,
(ifnlen ? ifname : "(nil)"), ifm->ifam_addrs);
break;
}
}
/* Assert read up end point matches to end point */
if (pnt != end)
zlog_warn ("ifam_read() does't read all socket data");
}
static int
if_getaddrs (void)
{
int ret;
struct ifaddrs *ifap;
struct ifaddrs *ifapfree;
struct interface *ifp;
int prefixlen;
ret = getifaddrs (&ifap);
if (ret != 0)
{
zlog_err ("getifaddrs(): %s", safe_strerror (errno));
return -1;
}
for (ifapfree = ifap; ifap; ifap = ifap->ifa_next)
{
if (ifap->ifa_addr == NULL)
{
zlog_err ("%s: nonsensical ifaddr with NULL ifa_addr, ifname %s",
__func__, (ifap->ifa_name ? ifap->ifa_name : "(null)"));
continue;
}
ifp = if_lookup_by_name (ifap->ifa_name);
if (ifp == NULL)
{
zlog_err ("if_getaddrs(): Can't lookup interface %s\n",
ifap->ifa_name);
continue;
}
if (ifap->ifa_addr->sa_family == AF_INET)
{
struct sockaddr_in *addr;
struct sockaddr_in *mask;
struct sockaddr_in *dest;
struct in_addr *dest_pnt;
addr = (struct sockaddr_in *) ifap->ifa_addr;
mask = (struct sockaddr_in *) ifap->ifa_netmask;
prefixlen = ip_masklen (mask->sin_addr);
dest_pnt = NULL;
if (ifap->ifa_flags & IFF_POINTOPOINT)
{
dest = (struct sockaddr_in *) ifap->ifa_dstaddr;
dest_pnt = &dest->sin_addr;
}
if (ifap->ifa_flags & IFF_BROADCAST)
{
dest = (struct sockaddr_in *) ifap->ifa_broadaddr;
dest_pnt = &dest->sin_addr;
}
connected_add_ipv4 (ifp, 0, &addr->sin_addr,
prefixlen, dest_pnt, NULL);
}
#ifdef HAVE_IPV6
if (ifap->ifa_addr->sa_family == AF_INET6)
{
struct sockaddr_in6 *addr;
struct sockaddr_in6 *mask;
struct sockaddr_in6 *dest;
struct in6_addr *dest_pnt;
addr = (struct sockaddr_in6 *) ifap->ifa_addr;
mask = (struct sockaddr_in6 *) ifap->ifa_netmask;
prefixlen = ip6_masklen (mask->sin6_addr);
dest_pnt = NULL;
if (ifap->ifa_flags & IFF_POINTOPOINT)
{
if (ifap->ifa_dstaddr)
{
dest = (struct sockaddr_in6 *) ifap->ifa_dstaddr;
dest_pnt = &dest->sin6_addr;
}
}
if (ifap->ifa_flags & IFF_BROADCAST)
{
if (ifap->ifa_broadaddr)
{
dest = (struct sockaddr_in6 *) ifap->ifa_broadaddr;
dest_pnt = &dest->sin6_addr;
}
}
#if defined(KAME)
if (IN6_IS_ADDR_LINKLOCAL(&addr->sin6_addr))
{
addr->sin6_scope_id =
ntohs(*(u_int16_t *)&addr->sin6_addr.s6_addr[2]);
addr->sin6_addr.s6_addr[2] = addr->sin6_addr.s6_addr[3] = 0;
}
#endif
connected_add_ipv6 (ifp, &addr->sin6_addr, prefixlen,
dest_pnt, NULL);
}
#endif /* HAVE_IPV6 */
}
freeifaddrs (ifapfree);
return 0;
}
void
rtm_read (struct rt_msghdr *rtm)
{
int flags;
u_char zebra_flags;
union sockunion dest, mask, gate;
char ifname[INTERFACE_NAMSIZ + 1];
short ifnlen = 0;
zebra_flags = 0;
/* Discard self send message. */
if (rtm->rtm_type != RTM_GET
&& (rtm->rtm_pid == pid || rtm->rtm_pid == old_pid))
return;
/* Read destination and netmask and gateway from rtm message
structure. */
flags = rtm_read_mesg (rtm, &dest, &mask, &gate, ifname, &ifnlen);
#ifdef RTF_CLONED /*bsdi, netbsd 1.6*/
if (flags & RTF_CLONED)
return;
#endif
#ifdef RTF_WASCLONED /*freebsd*/
if (flags & RTF_WASCLONED)
return;
#endif
if ((rtm->rtm_type == RTM_ADD) && ! (flags & RTF_UP))
return;
/* This is connected route. */
if (! (flags & RTF_GATEWAY))
return;
if (flags & RTF_PROTO1)
SET_FLAG (zebra_flags, ZEBRA_FLAG_SELFROUTE);
/* This is persistent route. */
if (flags & RTF_STATIC)
SET_FLAG (zebra_flags, ZEBRA_FLAG_STATIC);
/* This is a reject or blackhole route */
if (flags & RTF_REJECT)
SET_FLAG (zebra_flags, ZEBRA_FLAG_REJECT);
if (flags & RTF_BLACKHOLE)
SET_FLAG (zebra_flags, ZEBRA_FLAG_BLACKHOLE);
if (dest.sa.sa_family == AF_INET)
{
struct prefix_ipv4 p;
p.family = AF_INET;
p.prefix = dest.sin.sin_addr;
if (flags & RTF_HOST)
p.prefixlen = IPV4_MAX_PREFIXLEN;
else
p.prefixlen = ip_masklen (mask.sin.sin_addr);
/* Change, delete the old prefix, we have no further information
* to specify the route really
*/
if (rtm->rtm_type == RTM_CHANGE)
rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags, &p,
NULL, 0, 0);
if (rtm->rtm_type == RTM_GET
|| rtm->rtm_type == RTM_ADD
|| rtm->rtm_type == RTM_CHANGE)
rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin.sin_addr, 0, 0, 0, 0);
else
rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin.sin_addr, 0, 0);
}
#ifdef HAVE_IPV6
if (dest.sa.sa_family == AF_INET6)
{
struct prefix_ipv6 p;
unsigned int ifindex = 0;
p.family = AF_INET6;
p.prefix = dest.sin6.sin6_addr;
if (flags & RTF_HOST)
p.prefixlen = IPV6_MAX_PREFIXLEN;
else
p.prefixlen = ip6_masklen (mask.sin6.sin6_addr);
#ifdef KAME
if (IN6_IS_ADDR_LINKLOCAL (&gate.sin6.sin6_addr))
{
ifindex = IN6_LINKLOCAL_IFINDEX (gate.sin6.sin6_addr);
SET_IN6_LINKLOCAL_IFINDEX (gate.sin6.sin6_addr, 0);
}
#endif /* KAME */
/* CHANGE: delete the old prefix, we have no further information
* to specify the route really
*/
if (rtm->rtm_type == RTM_CHANGE)
rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags, &p,
NULL, 0, 0);
if (rtm->rtm_type == RTM_GET
|| rtm->rtm_type == RTM_ADD
|| rtm->rtm_type == RTM_CHANGE)
rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin6.sin6_addr, ifindex, 0, 0, 0);
else
rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, zebra_flags,
&p, &gate.sin6.sin6_addr, ifindex, 0);
}
#endif /* HAVE_IPV6 */
}
int
if_getaddrs ()
{
int ret;
struct ifaddrs *ifap;
struct ifaddrs *ifapfree;
struct interface *ifp;
int prefixlen;
ret = getifaddrs (&ifap);
if (ret != 0)
{
#ifdef BRCM_RIP_DEBUG
zlog_err ("getifaddrs(): %s", strerror (errno));
#endif
return -1;
}
for (ifapfree = ifap; ifap; ifap = ifap->ifa_next)
{
ifp = if_lookup_by_name (ifap->ifa_name);
if (ifp == NULL)
{
#ifdef BRCM_RIP_DEBUG
zlog_err ("if_getaddrs(): Can't lookup interface %s\n",
ifap->ifa_name);
#endif
continue;
}
if (ifap->ifa_addr->sa_family == AF_INET)
{
struct sockaddr_in *addr;
struct sockaddr_in *mask;
struct sockaddr_in *dest;
struct in_addr *dest_pnt;
addr = (struct sockaddr_in *) ifap->ifa_addr;
mask = (struct sockaddr_in *) ifap->ifa_netmask;
prefixlen = ip_masklen (mask->sin_addr);
dest_pnt = NULL;
if (ifap->ifa_flags & IFF_POINTOPOINT)
{
dest = (struct sockaddr_in *) ifap->ifa_dstaddr;
dest_pnt = &dest->sin_addr;
}
if (ifap->ifa_flags & IFF_BROADCAST)
{
dest = (struct sockaddr_in *) ifap->ifa_broadaddr;
dest_pnt = &dest->sin_addr;
}
connected_add_ipv4 (ifp, 0, &addr->sin_addr,
prefixlen, dest_pnt, NULL);
}
#ifdef HAVE_IPV6
if (ifap->ifa_addr->sa_family == AF_INET6)
{
struct sockaddr_in6 *addr;
struct sockaddr_in6 *mask;
struct sockaddr_in6 *dest;
struct in6_addr *dest_pnt;
addr = (struct sockaddr_in6 *) ifap->ifa_addr;
mask = (struct sockaddr_in6 *) ifap->ifa_netmask;
prefixlen = ip6_masklen (mask->sin6_addr);
dest_pnt = NULL;
if (ifap->ifa_flags & IFF_POINTOPOINT)
{
if (ifap->ifa_dstaddr)
{
dest = (struct sockaddr_in6 *) ifap->ifa_dstaddr;
dest_pnt = &dest->sin6_addr;
}
}
if (ifap->ifa_flags & IFF_BROADCAST)
{
if (ifap->ifa_broadaddr)
{
dest = (struct sockaddr_in6 *) ifap->ifa_broadaddr;
dest_pnt = &dest->sin6_addr;
}
}
connected_add_ipv6 (ifp, &addr->sin6_addr, prefixlen, dest_pnt);
}
#endif /* HAVE_IPV6 */
}
freeifaddrs (ifapfree);
return 0;
}
