zebra: consolidate connected_implicit_withdraw

connected_implicit_withdraw is used at two places and followed by exactly
the same code. Move that code into connected_implicit_withdraw and give
that function a more descriptive name.

Signed-off-by: Christian Franke <chris@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This commit is contained in:
Christian Franke 2013-01-24 14:04:46 +00:00 committed by David Lamparter
parent 676e1a0142
commit d7f5dad6d1

View File

@ -137,14 +137,10 @@ connected_same (struct connected *ifc1, struct connected *ifc2)
return 1;
}
/* Handle implicit withdrawals of addresses, where a system ADDs an address
* to an interface which already has the same address configured.
*
* Returns the struct connected which must be announced to clients,
* or NULL if nothing to do.
*/
static struct connected *
connected_implicit_withdraw (struct interface *ifp, struct connected *ifc)
/* Handle changes to addresses and send the neccesary announcements
* to clients. */
static void
connected_update(struct interface *ifp, struct connected *ifc)
{
struct connected *current;
@ -161,13 +157,17 @@ connected_implicit_withdraw (struct interface *ifp, struct connected *ifc)
{
/* nothing to do */
connected_free (ifc);
return NULL;
return;
}
/* Clear the configured flag on the old ifc, so it will be freed by
* connected withdraw. */
UNSET_FLAG(current->conf, ZEBRA_IFC_CONFIGURED);
connected_withdraw (current); /* implicit withdraw - freebsd does this */
}
return ifc;
/* If the connected is new or has changed, announce it */
connected_announce(ifp, ifc);
}
/* Called from if_up(). */
@ -273,11 +273,7 @@ connected_add_ipv4 (struct interface *ifp, int flags, struct in_addr *addr,
if (label)
ifc->label = XSTRDUP (MTYPE_CONNECTED_LABEL, label);
/* nothing to do? */
if ((ifc = connected_implicit_withdraw (ifp, ifc)) == NULL)
return;
connected_announce (ifp, ifc);
connected_update(ifp, ifc);
}
void
@ -401,11 +397,8 @@ connected_add_ipv6 (struct interface *ifp, int flags, struct in6_addr *addr,
/* Label of this address. */
if (label)
ifc->label = XSTRDUP (MTYPE_CONNECTED_LABEL, label);
if ((ifc = connected_implicit_withdraw (ifp, ifc)) == NULL)
return;
connected_announce (ifp, ifc);
connected_update(ifp, ifc);
}
void