/* Free connected structure. */
void
connected_free (struct connected *connected)
{
if (connected->address)
prefix_free (connected->address);
if (connected->destination)
prefix_free (connected->destination);
if (connected->label)
XFREE (connected->label);
XFREE (connected);
}
static int
bgp_update_address (struct interface *ifp, const union sockunion *dst,
union sockunion *addr)
{
struct prefix *p, *sel, *d;
struct connected *connected;
struct listnode *node;
int common;
d = sockunion2hostprefix (dst);
sel = NULL;
common = -1;
for (ALL_LIST_ELEMENTS_RO (ifp->connected, node, connected))
{
p = connected->address;
if (p->family != d->family)
continue;
if (prefix_common_bits (p, d) > common)
{
sel = p;
common = prefix_common_bits (sel, d);
}
}
prefix_free (d);
if (!sel)
return 1;
prefix2sockunion (sel, addr);
return 0;
}
/*
RFC 4601: 4.3.4. Maintaining Secondary Address Lists
All the advertised secondary addresses in received Hello messages
must be checked against those previously advertised by all other
PIM neighbors on that interface. If there is a conflict and the
same secondary address was previously advertised by another
neighbor, then only the most recently received mapping MUST be
maintained, and an error message SHOULD be logged to the
administrator in a rate-limited manner.
*/
static void delete_from_neigh_addr(struct interface *ifp,
struct list *addr_list,
struct in_addr neigh_addr)
{
struct listnode *addr_node;
struct prefix *addr;
struct pim_interface *pim_ifp;
pim_ifp = ifp->info;
zassert(pim_ifp);
zassert(addr_list);
/*
Scan secondary address list
*/
for (ALL_LIST_ELEMENTS_RO(addr_list, addr_node,
addr)) {
struct listnode *neigh_node;
struct pim_neighbor *neigh;
if (addr->family != AF_INET)
continue;
/*
Scan neighbors
*/
for (ALL_LIST_ELEMENTS_RO(pim_ifp->pim_neighbor_list, neigh_node,
neigh)) {
{
struct prefix *p = pim_neighbor_find_secondary(neigh, addr->u.prefix4);
if (p) {
char addr_str[100];
char this_neigh_str[100];
char other_neigh_str[100];
pim_inet4_dump("<addr?>", addr->u.prefix4, addr_str, sizeof(addr_str));
pim_inet4_dump("<neigh1?>", neigh_addr, this_neigh_str, sizeof(this_neigh_str));
pim_inet4_dump("<neigh2?>", neigh->source_addr, other_neigh_str, sizeof(other_neigh_str));
zlog_info("secondary addr %s recvd from neigh %s deleted from neigh %s on %s",
addr_str, this_neigh_str, other_neigh_str, ifp->name);
listnode_delete(neigh->prefix_list, p);
prefix_free(p);
}
}
} /* scan neighbors */
} /* scan addr list */
}
/* Free prefix for IPv6. */
void
prefix_ipv6_free (struct prefix_ipv6 *p)
{
prefix_free((struct prefix *)p);
}
/* Free prefix_ipv4 structure. */
void
prefix_ipv4_free (struct prefix_ipv4 *p)
{
prefix_free((struct prefix *)p);
}
