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zebra link state detection support

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This commit is contained in:
paul 2002-12-13 21:03:13 +00:00
parent 7afa08da2d
commit 2e3b2e474e
14 changed files with 123 additions and 34 deletions
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4
bgpd/bgp_zebra.c
View File

@ -208,7 +208,7 @@ bgp_interface_address_add (int command, struct zclient *zclient,
bgp_if_update (ifc->ifp);
if (if_is_up (ifc->ifp))
if (if_is_operative (ifc->ifp))
bgp_connected_add (ifc);
return 0;
@ -227,7 +227,7 @@ bgp_interface_address_delete (int command, struct zclient *zclient,
bgp_if_update (ifc->ifp);
if (if_is_up (ifc->ifp))
if (if_is_operative (ifc->ifp))
bgp_connected_delete (ifc);
connected_free (ifc);

16
lib/if.c
View File

@ -270,6 +270,22 @@ if_is_up (struct interface *ifp)
return ifp->flags & IFF_UP;
}
/* Is interface running? */
int
if_is_running (struct interface *ifp)
{
return ifp->flags & IFF_RUNNING;
}
/* Is the interface operative, eg. either UP & RUNNING
or UP & !ZEBRA_INTERFACE_LINK_DETECTION */
int
if_is_operative (struct interface *ifp)
{
return ((ifp->flags & IFF_UP) &&
(ifp->flags & IFF_RUNNING || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION)));
}
/* Is this loopback interface ? */
int
if_is_loopback (struct interface *ifp)

3
lib/if.h
View File

@ -85,6 +85,7 @@ struct interface
u_char status;
#define ZEBRA_INTERFACE_ACTIVE (1 << 0)
#define ZEBRA_INTERFACE_SUB (1 << 1)
#define ZEBRA_INTERFACE_LINKDETECTION (1 << 2)
/* Interface flags. */
unsigned long flags;
@ -188,6 +189,8 @@ struct interface *if_lookup_address (struct in_addr);
struct interface *if_get_by_name (char *);
void if_delete (struct interface *);
int if_is_up (struct interface *);
int if_is_running (struct interface *);
int if_is_operative (struct interface *);
int if_is_loopback (struct interface *);
int if_is_broadcast (struct interface *);
int if_is_pointopoint (struct interface *);

2
lib/zclient.c
View File

@ -564,6 +564,7 @@ zebra_interface_add_read (struct stream *s)
ifp->ifindex = stream_getl (s);
/* Read interface's value. */
ifp->status = stream_getc (s);
ifp->flags = stream_getl (s);
ifp->metric = stream_getl (s);
ifp->mtu = stream_getl (s);
@ -600,6 +601,7 @@ zebra_interface_state_read (struct stream *s)
ifp->ifindex = stream_getl (s);
/* Read interface's value. */
ifp->status = stream_getc (s);
ifp->flags = stream_getl (s);
ifp->metric = stream_getl (s);
ifp->mtu = stream_getl (s);

2
ospfd/ospf_ase.c
View File

@ -154,7 +154,7 @@ ospf_ase_forward_address_check (struct in_addr fwd_addr)
for (ifn = listhead (ospf_top->oiflist); ifn; nextnode (ifn))
if ((oi = getdata (ifn)) != NULL)
if (if_is_up (oi->ifp))
if (if_is_operative (oi->ifp))
if (oi->type != OSPF_IFTYPE_VIRTUALLINK)
if (IPV4_ADDR_SAME (&oi->address->u.prefix4, &fwd_addr))
return 0;

8
ospfd/ospf_lsa.c
View File

@ -640,7 +640,7 @@ router_lsa_link_set (struct stream *s, struct ospf_area *area)
struct interface *ifp = oi->ifp;
/* Check interface is up, OSPF is enable. */
if (if_is_up (ifp))
if (if_is_operative (ifp))
{
if (oi->state != ISM_Down)
{
@ -1391,7 +1391,7 @@ ospf_external_lsa_nexthop_get (struct in_addr nexthop)
{
struct ospf_interface *oi = getdata (n1);
if (if_is_up (oi->ifp))
if (if_is_operative (oi->ifp))
if (oi->address->family == AF_INET)
if (prefix_match (oi->address, &nh))
return nexthop;
@ -1412,7 +1412,7 @@ ospf_get_ip_from_ifp (struct ospf_interface *oi)
fwd.s_addr = 0;
if (if_is_up (oi->ifp))
if (if_is_operative (oi->ifp))
return oi->address->u.prefix4;
return fwd;
@ -1432,7 +1432,7 @@ ospf_get_nssa_ip (void)
{
struct ospf_interface *oi = getdata (n1);
if (if_is_up (oi->ifp))
if (if_is_operative (oi->ifp))
if (oi->area->external_routing == OSPF_AREA_NSSA)
if (oi->address && oi->address->family == AF_INET)
return (oi->address->u.prefix4 );

11
ospfd/ospf_vty.c
View File

@ -2526,12 +2526,11 @@ show_ip_ospf_interface_sub (struct vty *vty, struct interface *ifp)
oi_count = ospf_oi_count (ifp);
/* Is interface up? */
if (if_is_up (ifp))
vty_out (vty, "%s is up, line protocol is up%s", ifp->name, VTY_NEWLINE);
else
{
vty_out (vty, "%s is down, line protocol is down%s", ifp->name,
VTY_NEWLINE);
if (if_is_operative (ifp)) {
vty_out (vty, "%s is up%s", ifp->name, VTY_NEWLINE);
} else
{
vty_out (vty, "%s is down%s", ifp->name, VTY_NEWLINE);
if (oi_count == 0)

3
ospfd/ospf_zebra.c
View File

@ -154,6 +154,7 @@ zebra_interface_if_set_value (struct stream *s, struct interface *ifp)
ifp->ifindex = stream_getl (s);
/* Read interface's value. */
ifp->status = stream_getc (s);
ifp->flags = stream_getl (s);
ifp->metric = stream_getl (s);
ifp->mtu = stream_getl (s);
@ -175,7 +176,7 @@ ospf_interface_state_up (int command, struct zclient *zclient,
return 0;
/* Interface is already up. */
if (if_is_up (ifp))
if (if_is_operative (ifp))
{
/* Temporarily keep ifp values. */
memcpy (&if_tmp, ifp, sizeof (struct interface));

2
ospfd/ospfd.c
View File

@ -761,7 +761,7 @@ ospf_network_run (struct ospf *ospf, struct prefix *p, struct ospf_area *area)
ospf_area_add_if (oi->area, oi);
if (if_is_up (ifp))
if (if_is_operative (ifp))
ospf_if_up (oi);
break;

8
ripd/rip_interface.c
View File

@ -248,7 +248,7 @@ rip_request_interface (struct interface *ifp)
return;
/* If interface is down, don't send RIP packet. */
if (! if_is_up (ifp))
if (! if_is_operative (ifp))
return;
/* Fetch RIP interface information. */
@ -311,7 +311,7 @@ rip_multicast_join (struct interface *ifp, int sock)
{
listnode cnode;
if (if_is_up (ifp) && if_is_multicast (ifp))
if (if_is_operative (ifp) && if_is_multicast (ifp))
{
if (IS_RIP_DEBUG_EVENT)
zlog_info ("multicast join at %s", ifp->name);
@ -705,7 +705,7 @@ rip_if_down(struct interface *ifp)
{
/* All redistributed routes but static and system */
if ((rinfo->ifindex == ifp->ifindex) &&
(rinfo->type != ZEBRA_ROUTE_STATIC) &&
/* (rinfo->type != ZEBRA_ROUTE_STATIC) && */
(rinfo->type != ZEBRA_ROUTE_SYSTEM))
rip_redistribute_delete (rinfo->type,rinfo->sub_type,
(struct prefix_ipv4 *)&rp->p,
@ -1008,7 +1008,7 @@ rip_enable_apply (struct interface *ifp)
if (if_is_loopback (ifp))
return;
if (! if_is_up (ifp))
if (! if_is_operative (ifp))
return;
ri = ifp->info;

2
ripd/ripd.c
View File

@ -2231,7 +2231,7 @@ rip_update_process (int route_type)
if (if_is_loopback (ifp))
continue;
if (! if_is_up (ifp))
if (! if_is_operative (ifp))
continue;
/* Fetch RIP interface information. */

86
zebra/interface.c
View File

@ -147,7 +147,7 @@ if_addr_wakeup (struct interface *ifp)
zebra_interface_address_add_update (ifp, ifc);
if (if_is_up(ifp))
if (if_is_operative(ifp))
connected_up_ipv4 (ifp, ifc);
}
#ifdef HAVE_IPV6
@ -170,7 +170,7 @@ if_addr_wakeup (struct interface *ifp)
zebra_interface_address_add_update (ifp, ifc);
if (if_is_up(ifp))
if (if_is_operative(ifp))
connected_up_ipv6 (ifp, ifc);
}
#endif /* HAVE_IPV6 */
@ -334,16 +334,16 @@ if_down (struct interface *ifp)
void
if_refresh (struct interface *ifp)
{
if (if_is_up (ifp))
if (if_is_operative (ifp))
{
if_get_flags (ifp);
if (! if_is_up (ifp))
if (! if_is_operative (ifp))
if_down (ifp);
}
else
{
if_get_flags (ifp);
if (if_is_up (ifp))
if (if_is_operative (ifp))
if_up (ifp);
}
}
@ -479,8 +479,22 @@ if_dump_vty (struct vty *vty, struct interface *ifp)
struct connected *connected;
listnode node;
vty_out (vty, "Interface %s%s", ifp->name,
VTY_NEWLINE);
vty_out (vty, "Interface %s is ", ifp->name);
if (if_is_up(ifp)) {
vty_out (vty, "up, line protocol ");
if (CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION)) {
if (if_is_running(ifp))
vty_out (vty, "is up%s", VTY_NEWLINE);
else
vty_out (vty, "is down%s", VTY_NEWLINE);
} else {
vty_out (vty, "detection is disabled%s", VTY_NEWLINE);
}
} else {
vty_out (vty, "down%s", VTY_NEWLINE);
}
if (ifp->desc)
vty_out (vty, " Description: %s%s", ifp->desc,
VTY_NEWLINE);
@ -790,6 +804,51 @@ DEFUN (no_multicast,
return CMD_SUCCESS;
}
DEFUN (linkdetect,
linkdetect_cmd,
"link-detect",
"Enable link detection on interface\n")
{
int ret;
struct interface *ifp;
int if_was_operative;
ifp = (struct interface *) vty->index;
if_was_operative = if_is_operative(ifp);
SET_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION);
/* When linkdetection is enabled, if might come down */
if (!if_is_operative(ifp) && if_was_operative) if_down(ifp);
/* FIXME: Will defer status change forwarding if interface
does not come down! */
return CMD_SUCCESS;
}
DEFUN (no_linkdetect,
no_linkdetect_cmd,
"no link-detect",
NO_STR
"Disable link detection on interface\n")
{
int ret;
struct interface *ifp;
int if_was_operative;
ifp = (struct interface *) vty->index;
if_was_operative = if_is_operative(ifp);
UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION);
/* Interface may come up after disabling link detection */
if (if_is_operative(ifp) && !if_was_operative) if_up(ifp);
/* FIXME: see linkdetect_cmd */
return CMD_SUCCESS;
}
DEFUN (shutdown_if,
shutdown_if_cmd,
"shutdown",
@ -859,7 +918,7 @@ DEFUN (bandwidth_if,
ifp->bandwidth = bandwidth;
/* force protocols to recalculate routes due to cost change */
if (if_is_up (ifp))
if (if_is_operative (ifp))
zebra_interface_up_update (ifp);
return CMD_SUCCESS;
@ -878,7 +937,7 @@ DEFUN (no_bandwidth_if,
ifp->bandwidth = 0;
/* force protocols to recalculate routes due to cost change */
if (if_is_up (ifp))
if (if_is_operative (ifp))
zebra_interface_up_update (ifp);
return CMD_SUCCESS;
@ -971,7 +1030,7 @@ ip_address_install (struct vty *vty, struct interface *ifp, char *addr_str,
zebra_interface_address_add_update (ifp, ifc);
/* If interface is up register connected route. */
if (if_is_up(ifp))
if (if_is_operative(ifp))
connected_up_ipv4 (ifp, ifc);
}
@ -1179,7 +1238,7 @@ ipv6_address_install (struct vty *vty, struct interface *ifp, char *addr_str,
zebra_interface_address_add_update (ifp, ifc);
/* If interface is up register connected route. */
if (if_is_up(ifp))
if (if_is_operative(ifp))
connected_up_ipv6 (ifp, ifc);
}
@ -1315,6 +1374,9 @@ if_config_write (struct vty *vty)
if (ifp->bandwidth != 0)
vty_out(vty, " bandwidth %u%s", ifp->bandwidth, VTY_NEWLINE);
if (CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_LINKDETECTION))
vty_out(vty, " link-detect%s", VTY_NEWLINE);
for (addrnode = listhead (ifp->connected); addrnode; nextnode (addrnode))
{
ifc = getdata (addrnode);
@ -1377,6 +1439,8 @@ zebra_if_init ()
install_element (INTERFACE_NODE, &no_interface_desc_cmd);
install_element (INTERFACE_NODE, &multicast_cmd);
install_element (INTERFACE_NODE, &no_multicast_cmd);
install_element (INTERFACE_NODE, &linkdetect_cmd);
install_element (INTERFACE_NODE, &no_linkdetect_cmd);
install_element (INTERFACE_NODE, &shutdown_if_cmd);
install_element (INTERFACE_NODE, &no_shutdown_if_cmd);
install_element (INTERFACE_NODE, &bandwidth_if_cmd);

6
zebra/rt_netlink.c
View File

@ -787,16 +787,16 @@ netlink_link_change (struct sockaddr_nl *snl, struct nlmsghdr *h)
ifp->mtu = *(int *)RTA_DATA (tb[IFLA_MTU]);
ifp->metric = 1;
if (if_is_up (ifp))
if (if_is_operative (ifp))
{
ifp->flags = ifi->ifi_flags & 0x0000fffff;
if (! if_is_up (ifp))
if (! if_is_operative (ifp))
if_down (ifp);
}
else
{
ifp->flags = ifi->ifi_flags & 0x0000fffff;
if (if_is_up (ifp))
if (if_is_operative (ifp))
if_up (ifp);
}
}

4
zebra/zserv.c
View File

@ -96,6 +96,7 @@ zsend_interface_add (struct zserv *client, struct interface *ifp)
/* Interface information. */
stream_put (s, ifp->name, INTERFACE_NAMSIZ);
stream_putl (s, ifp->ifindex);
stream_putc (s, ifp->status);
stream_putl (s, ifp->flags);
stream_putl (s, ifp->metric);
stream_putl (s, ifp->mtu);
@ -134,6 +135,7 @@ zsend_interface_delete (struct zserv *client, struct interface *ifp)
stream_putc (s, ZEBRA_INTERFACE_DELETE);
stream_put (s, ifp->name, INTERFACE_NAMSIZ);
stream_putl (s, ifp->ifindex);
stream_putc (s, ifp->status);
stream_putl (s, ifp->flags);
stream_putl (s, ifp->metric);
stream_putl (s, ifp->mtu);
@ -256,6 +258,7 @@ zsend_interface_up (struct zserv *client, struct interface *ifp)
/* Interface information. */
stream_put (s, ifp->name, INTERFACE_NAMSIZ);
stream_putl (s, ifp->ifindex);
stream_putc (s, ifp->status);
stream_putl (s, ifp->flags);
stream_putl (s, ifp->metric);
stream_putl (s, ifp->mtu);
@ -288,6 +291,7 @@ zsend_interface_down (struct zserv *client, struct interface *ifp)
/* Interface information. */
stream_put (s, ifp->name, INTERFACE_NAMSIZ);
stream_putl (s, ifp->ifindex);
stream_putc (s, ifp->status);
stream_putl (s, ifp->flags);
stream_putl (s, ifp->metric);
stream_putl (s, ifp->mtu);