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lib: add function to get iface link-local

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Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2019-01-25 21:48:17 +00:00
parent 85467974e8
commit 667179cae4
2 changed files with 14 additions and 0 deletions
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13
lib/if.c
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@ -904,6 +904,19 @@ struct connected *connected_add_by_prefix(struct interface *ifp,
return ifc;
}
struct connected *connected_get_linklocal(struct interface *ifp)
{
struct listnode *n;
struct connected *c = NULL;
for (ALL_LIST_ELEMENTS_RO(ifp->connected, n, c)) {
if (c->address->family == AF_INET6
&& IN6_IS_ADDR_LINKLOCAL(&c->address->u.prefix6))
break;
}
return c;
}
#if 0 /* this route_table of struct connected's is unused \
* however, it would be good to use a route_table rather than \
* a list.. \

1
lib/if.h
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@ -542,6 +542,7 @@ extern struct connected *connected_lookup_prefix_exact(struct interface *,
extern struct nbr_connected *nbr_connected_new(void);
extern void nbr_connected_free(struct nbr_connected *);
struct nbr_connected *nbr_connected_check(struct interface *, struct prefix *);
struct connected *connected_get_linklocal(struct interface *ifp);
/* link parameters */
struct if_link_params *if_link_params_get(struct interface *);