2 * RIPngd and zebra interface.
3 * Copyright (C) 1998, 1999 Kunihiro Ishiguro
5 * This file is part of GNU Zebra.
7 * GNU Zebra is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
12 * GNU Zebra is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; see the file COPYING; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "agg_table.h"
33 #include "ripngd/ripngd.h"
34 #include "ripngd/ripng_debug.h"
36 /* All information about zebra. */
37 struct zclient
*zclient
= NULL
;
39 /* Send ECMP routes to zebra. */
40 static void ripng_zebra_ipv6_send(struct agg_node
*rp
, uint8_t cmd
)
42 struct list
*list
= (struct list
*)rp
->info
;
43 struct zapi_route api
;
44 struct zapi_nexthop
*api_nh
;
45 struct listnode
*listnode
= NULL
;
46 struct ripng_info
*rinfo
= NULL
;
49 memset(&api
, 0, sizeof(api
));
50 api
.vrf_id
= VRF_DEFAULT
;
51 api
.type
= ZEBRA_ROUTE_RIPNG
;
52 api
.safi
= SAFI_UNICAST
;
55 SET_FLAG(api
.message
, ZAPI_MESSAGE_NEXTHOP
);
56 for (ALL_LIST_ELEMENTS_RO(list
, listnode
, rinfo
)) {
57 if (count
>= MULTIPATH_NUM
)
59 api_nh
= &api
.nexthops
[count
];
60 api_nh
->vrf_id
= VRF_DEFAULT
;
61 api_nh
->gate
.ipv6
= rinfo
->nexthop
;
62 api_nh
->ifindex
= rinfo
->ifindex
;
63 api_nh
->type
= NEXTHOP_TYPE_IPV6_IFINDEX
;
65 if (cmd
== ZEBRA_ROUTE_ADD
)
66 SET_FLAG(rinfo
->flags
, RIPNG_RTF_FIB
);
68 UNSET_FLAG(rinfo
->flags
, RIPNG_RTF_FIB
);
71 api
.nexthop_num
= count
;
73 rinfo
= listgetdata(listhead(list
));
75 SET_FLAG(api
.message
, ZAPI_MESSAGE_METRIC
);
76 api
.metric
= rinfo
->metric
;
79 SET_FLAG(api
.message
, ZAPI_MESSAGE_TAG
);
83 zclient_route_send(cmd
, zclient
, &api
);
85 if (IS_RIPNG_DEBUG_ZEBRA
) {
87 zlog_debug("%s: %s/%d nexthops %d",
88 (cmd
== ZEBRA_ROUTE_ADD
)
89 ? "Install into zebra"
90 : "Delete from zebra",
91 inet6_ntoa(rp
->p
.u
.prefix6
), rp
->p
.prefixlen
,
96 (cmd
== ZEBRA_ROUTE_ADD
) ? "Install into zebra"
97 : "Delete from zebra",
98 inet6_ntoa(rp
->p
.u
.prefix6
), rp
->p
.prefixlen
);
102 /* Add/update ECMP routes to zebra. */
103 void ripng_zebra_ipv6_add(struct agg_node
*rp
)
105 ripng_zebra_ipv6_send(rp
, ZEBRA_ROUTE_ADD
);
108 /* Delete ECMP routes from zebra. */
109 void ripng_zebra_ipv6_delete(struct agg_node
*rp
)
111 ripng_zebra_ipv6_send(rp
, ZEBRA_ROUTE_DELETE
);
114 /* Zebra route add and delete treatment. */
115 static int ripng_zebra_read_route(int command
, struct zclient
*zclient
,
116 zebra_size_t length
, vrf_id_t vrf_id
)
118 struct zapi_route api
;
119 struct in6_addr nexthop
;
120 unsigned long ifindex
;
122 if (zapi_route_decode(zclient
->ibuf
, &api
) < 0)
125 /* we completely ignore srcdest routes for now. */
126 if (CHECK_FLAG(api
.message
, ZAPI_MESSAGE_SRCPFX
))
129 if (IN6_IS_ADDR_LINKLOCAL(&api
.prefix
.u
.prefix6
))
132 nexthop
= api
.nexthops
[0].gate
.ipv6
;
133 ifindex
= api
.nexthops
[0].ifindex
;
135 if (command
== ZEBRA_REDISTRIBUTE_ROUTE_ADD
)
136 ripng_redistribute_add(api
.type
, RIPNG_ROUTE_REDISTRIBUTE
,
137 (struct prefix_ipv6
*)&api
.prefix
,
138 ifindex
, &nexthop
, api
.tag
);
140 ripng_redistribute_delete(api
.type
, RIPNG_ROUTE_REDISTRIBUTE
,
141 (struct prefix_ipv6
*)&api
.prefix
,
147 void ripng_redistribute_conf_update(int type
)
149 zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD
, zclient
, AFI_IP6
, type
, 0,
153 void ripng_redistribute_conf_delete(int type
)
155 if (zclient
->sock
> 0)
156 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
, zclient
,
157 AFI_IP6
, type
, 0, VRF_DEFAULT
);
159 ripng_redistribute_withdraw(type
);
162 int ripng_redistribute_check(int type
)
164 return vrf_bitmap_check(zclient
->redist
[AFI_IP6
][type
], VRF_DEFAULT
);
167 void ripng_redistribute_clean(void)
169 for (int i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
170 if (!vrf_bitmap_check(zclient
->redist
[AFI_IP6
][i
], VRF_DEFAULT
))
173 if (zclient
->sock
> 0)
174 zebra_redistribute_send(ZEBRA_REDISTRIBUTE_DELETE
,
175 zclient
, AFI_IP6
, i
, 0,
178 vrf_bitmap_unset(zclient
->redist
[AFI_IP6
][i
], VRF_DEFAULT
);
180 /* Remove the routes from RIP table. */
181 ripng_redistribute_withdraw(i
);
185 void ripng_redistribute_write(struct vty
*vty
)
189 for (i
= 0; i
< ZEBRA_ROUTE_MAX
; i
++) {
190 if (i
== zclient
->redist_default
191 || !vrf_bitmap_check(zclient
->redist
[AFI_IP6
][i
],
195 vty_out(vty
, " %s", zebra_route_string(i
));
199 static void ripng_zebra_connected(struct zclient
*zclient
)
201 zclient_send_reg_requests(zclient
, VRF_DEFAULT
);
204 /* Initialize zebra structure and it's commands. */
205 void zebra_init(struct thread_master
*master
)
207 /* Allocate zebra structure. */
208 zclient
= zclient_new(master
, &zclient_options_default
);
209 zclient_init(zclient
, ZEBRA_ROUTE_RIPNG
, 0, &ripngd_privs
);
211 zclient
->zebra_connected
= ripng_zebra_connected
;
212 zclient
->interface_up
= ripng_interface_up
;
213 zclient
->interface_down
= ripng_interface_down
;
214 zclient
->interface_add
= ripng_interface_add
;
215 zclient
->interface_delete
= ripng_interface_delete
;
216 zclient
->interface_address_add
= ripng_interface_address_add
;
217 zclient
->interface_address_delete
= ripng_interface_address_delete
;
218 zclient
->redistribute_route_add
= ripng_zebra_read_route
;
219 zclient
->redistribute_route_del
= ripng_zebra_read_route
;
222 void ripng_zebra_stop(void)
224 zclient_stop(zclient
);
225 zclient_free(zclient
);