diff options
Diffstat (limited to 'isisd/isis_zebra.c')
| -rw-r--r-- | isisd/isis_zebra.c | 1088 |
1 files changed, 534 insertions, 554 deletions
diff --git a/isisd/isis_zebra.c b/isisd/isis_zebra.c index 79bc752e5f..f6b0d5f6e4 100644 --- a/isisd/isis_zebra.c +++ b/isisd/isis_zebra.c @@ -1,23 +1,23 @@ /* - * IS-IS Rout(e)ing protocol - isis_zebra.c + * IS-IS Rout(e)ing protocol - isis_zebra.c * * Copyright (C) 2001,2002 Sampo Saaristo - * Tampere University of Technology + * Tampere University of Technology * Institute of Communications Engineering * Copyright (C) 2013-2015 Christian Franke <chris@opensourcerouting.org> * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public Licenseas published by the Free - * Software Foundation; either version 2 of the License, or (at your option) + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public Licenseas published by the Free + * Software Foundation; either version 2 of the License, or (at your option) * any later version. * - * This program is distributed in the hope that it will be useful,but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * This program is distributed in the hope that it will be useful,but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ @@ -54,668 +54,648 @@ struct zclient *zclient = NULL; /* Router-id update message from zebra. */ -static int -isis_router_id_update_zebra (int command, struct zclient *zclient, - zebra_size_t length, vrf_id_t vrf_id) +static int isis_router_id_update_zebra(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct isis_area *area; - struct listnode *node; - struct prefix router_id; - - /* - * If ISIS TE is enable, TE Router ID is set through specific command. - * See mpls_te_router_addr() command in isis_te.c - */ - if (IS_MPLS_TE(isisMplsTE)) - return 0; - - zebra_router_id_update_read (zclient->ibuf, &router_id); - if (isis->router_id == router_id.u.prefix4.s_addr) - return 0; - - isis->router_id = router_id.u.prefix4.s_addr; - for (ALL_LIST_ELEMENTS_RO (isis->area_list, node, area)) - if (listcount (area->area_addrs) > 0) - lsp_regenerate_schedule (area, area->is_type, 0); - - return 0; + struct isis_area *area; + struct listnode *node; + struct prefix router_id; + + /* + * If ISIS TE is enable, TE Router ID is set through specific command. + * See mpls_te_router_addr() command in isis_te.c + */ + if (IS_MPLS_TE(isisMplsTE)) + return 0; + + zebra_router_id_update_read(zclient->ibuf, &router_id); + if (isis->router_id == router_id.u.prefix4.s_addr) + return 0; + + isis->router_id = router_id.u.prefix4.s_addr; + for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area)) + if (listcount(area->area_addrs) > 0) + lsp_regenerate_schedule(area, area->is_type, 0); + + return 0; } -static int -isis_zebra_if_add (int command, struct zclient *zclient, zebra_size_t length, - vrf_id_t vrf_id) +static int isis_zebra_if_add(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct interface *ifp; + struct interface *ifp; - ifp = zebra_interface_add_read (zclient->ibuf, vrf_id); + ifp = zebra_interface_add_read(zclient->ibuf, vrf_id); - if (isis->debugs & DEBUG_ZEBRA) - zlog_debug ("Zebra I/F add: %s index %d flags %ld metric %d mtu %d", - ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric, ifp->mtu); + if (isis->debugs & DEBUG_ZEBRA) + zlog_debug( + "Zebra I/F add: %s index %d flags %ld metric %d mtu %d", + ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric, + ifp->mtu); - if (if_is_operative (ifp)) - isis_csm_state_change (IF_UP_FROM_Z, circuit_scan_by_ifp (ifp), ifp); + if (if_is_operative(ifp)) + isis_csm_state_change(IF_UP_FROM_Z, circuit_scan_by_ifp(ifp), + ifp); - return 0; + return 0; } -static int -isis_zebra_if_del (int command, struct zclient *zclient, zebra_size_t length, - vrf_id_t vrf_id) +static int isis_zebra_if_del(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct interface *ifp; - struct stream *s; + struct interface *ifp; + struct stream *s; - s = zclient->ibuf; - ifp = zebra_interface_state_read (s, vrf_id); + s = zclient->ibuf; + ifp = zebra_interface_state_read(s, vrf_id); - if (!ifp) - return 0; + if (!ifp) + return 0; - if (if_is_operative (ifp)) - zlog_warn ("Zebra: got delete of %s, but interface is still up", - ifp->name); + if (if_is_operative(ifp)) + zlog_warn("Zebra: got delete of %s, but interface is still up", + ifp->name); - if (isis->debugs & DEBUG_ZEBRA) - zlog_debug ("Zebra I/F delete: %s index %d flags %ld metric %d mtu %d", - ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric, ifp->mtu); + if (isis->debugs & DEBUG_ZEBRA) + zlog_debug( + "Zebra I/F delete: %s index %d flags %ld metric %d mtu %d", + ifp->name, ifp->ifindex, (long)ifp->flags, ifp->metric, + ifp->mtu); - isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), ifp); + isis_csm_state_change(IF_DOWN_FROM_Z, circuit_scan_by_ifp(ifp), ifp); - /* Cannot call if_delete because we should retain the pseudo interface - in case there is configuration info attached to it. */ - if_delete_retain(ifp); + /* Cannot call if_delete because we should retain the pseudo interface + in case there is configuration info attached to it. */ + if_delete_retain(ifp); - ifp->ifindex = IFINDEX_DELETED; + ifp->ifindex = IFINDEX_DELETED; - return 0; + return 0; } -static int -isis_zebra_if_state_up (int command, struct zclient *zclient, - zebra_size_t length, vrf_id_t vrf_id) +static int isis_zebra_if_state_up(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct interface *ifp; + struct interface *ifp; - ifp = zebra_interface_state_read (zclient->ibuf, vrf_id); + ifp = zebra_interface_state_read(zclient->ibuf, vrf_id); - if (ifp == NULL) - return 0; + if (ifp == NULL) + return 0; - isis_csm_state_change (IF_UP_FROM_Z, circuit_scan_by_ifp (ifp), ifp); + isis_csm_state_change(IF_UP_FROM_Z, circuit_scan_by_ifp(ifp), ifp); - return 0; + return 0; } -static int -isis_zebra_if_state_down (int command, struct zclient *zclient, - zebra_size_t length, vrf_id_t vrf_id) +static int isis_zebra_if_state_down(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct interface *ifp; - struct isis_circuit *circuit; + struct interface *ifp; + struct isis_circuit *circuit; - ifp = zebra_interface_state_read (zclient->ibuf, vrf_id); + ifp = zebra_interface_state_read(zclient->ibuf, vrf_id); - if (ifp == NULL) - return 0; + if (ifp == NULL) + return 0; - circuit = isis_csm_state_change (IF_DOWN_FROM_Z, circuit_scan_by_ifp (ifp), - ifp); - if (circuit) - SET_FLAG(circuit->flags, ISIS_CIRCUIT_FLAPPED_AFTER_SPF); + circuit = isis_csm_state_change(IF_DOWN_FROM_Z, + circuit_scan_by_ifp(ifp), ifp); + if (circuit) + SET_FLAG(circuit->flags, ISIS_CIRCUIT_FLAPPED_AFTER_SPF); - return 0; + return 0; } -static int -isis_zebra_if_address_add (int command, struct zclient *zclient, - zebra_size_t length, vrf_id_t vrf_id) +static int isis_zebra_if_address_add(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct connected *c; - struct prefix *p; - char buf[PREFIX2STR_BUFFER]; + struct connected *c; + struct prefix *p; + char buf[PREFIX2STR_BUFFER]; - c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD, - zclient->ibuf, vrf_id); + c = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_ADD, + zclient->ibuf, vrf_id); - if (c == NULL) - return 0; + if (c == NULL) + return 0; - p = c->address; + p = c->address; - prefix2str (p, buf, sizeof (buf)); + prefix2str(p, buf, sizeof(buf)); #ifdef EXTREME_DEBUG - if (p->family == AF_INET) - zlog_debug ("connected IP address %s", buf); - if (p->family == AF_INET6) - zlog_debug ("connected IPv6 address %s", buf); + if (p->family == AF_INET) + zlog_debug("connected IP address %s", buf); + if (p->family == AF_INET6) + zlog_debug("connected IPv6 address %s", buf); #endif /* EXTREME_DEBUG */ - if (if_is_operative (c->ifp)) - isis_circuit_add_addr (circuit_scan_by_ifp (c->ifp), c); + if (if_is_operative(c->ifp)) + isis_circuit_add_addr(circuit_scan_by_ifp(c->ifp), c); - return 0; + return 0; } -static int -isis_zebra_if_address_del (int command, struct zclient *client, - zebra_size_t length, vrf_id_t vrf_id) +static int isis_zebra_if_address_del(int command, struct zclient *client, + zebra_size_t length, vrf_id_t vrf_id) { - struct connected *c; - struct interface *ifp; + struct connected *c; + struct interface *ifp; #ifdef EXTREME_DEBUG - struct prefix *p; - char buf[PREFIX2STR_BUFFER]; + struct prefix *p; + char buf[PREFIX2STR_BUFFER]; #endif /* EXTREME_DEBUG */ - c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE, - zclient->ibuf, vrf_id); + c = zebra_interface_address_read(ZEBRA_INTERFACE_ADDRESS_DELETE, + zclient->ibuf, vrf_id); - if (c == NULL) - return 0; + if (c == NULL) + return 0; - ifp = c->ifp; + ifp = c->ifp; #ifdef EXTREME_DEBUG - p = c->address; - prefix2str (p, buf, sizeof (buf)); + p = c->address; + prefix2str(p, buf, sizeof(buf)); - if (p->family == AF_INET) - zlog_debug ("disconnected IP address %s", buf); - if (p->family == AF_INET6) - zlog_debug ("disconnected IPv6 address %s", buf); + if (p->family == AF_INET) + zlog_debug("disconnected IP address %s", buf); + if (p->family == AF_INET6) + zlog_debug("disconnected IPv6 address %s", buf); #endif /* EXTREME_DEBUG */ - if (if_is_operative (ifp)) - isis_circuit_del_addr (circuit_scan_by_ifp (ifp), c); - connected_free (c); + if (if_is_operative(ifp)) + isis_circuit_del_addr(circuit_scan_by_ifp(ifp), c); + connected_free(c); - return 0; + return 0; } -static int -isis_zebra_link_params (int command, struct zclient *zclient, - zebra_size_t length) +static int isis_zebra_link_params(int command, struct zclient *zclient, + zebra_size_t length) { - struct interface *ifp; + struct interface *ifp; - ifp = zebra_interface_link_params_read (zclient->ibuf); + ifp = zebra_interface_link_params_read(zclient->ibuf); - if (ifp == NULL) - return 0; + if (ifp == NULL) + return 0; - /* Update TE TLV */ - isis_mpls_te_update(ifp); + /* Update TE TLV */ + isis_mpls_te_update(ifp); - return 0; + return 0; } -static void -isis_zebra_route_add_ipv4 (struct prefix *prefix, - struct isis_route_info *route_info) +static void isis_zebra_route_add_ipv4(struct prefix *prefix, + struct isis_route_info *route_info) { - u_char message; - u_int32_t flags; - int psize; - struct stream *stream; - struct isis_nexthop *nexthop; - struct listnode *node; - - if (CHECK_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED)) - return; - - if (vrf_bitmap_check (zclient->redist[AFI_IP][ZEBRA_ROUTE_ISIS], VRF_DEFAULT)) - { - message = 0; - flags = 0; - - SET_FLAG (message, ZAPI_MESSAGE_NEXTHOP); - SET_FLAG (message, ZAPI_MESSAGE_METRIC); + u_char message; + u_int32_t flags; + int psize; + struct stream *stream; + struct isis_nexthop *nexthop; + struct listnode *node; + + if (CHECK_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED)) + return; + + if (vrf_bitmap_check(zclient->redist[AFI_IP][ZEBRA_ROUTE_ISIS], + VRF_DEFAULT)) { + message = 0; + flags = 0; + + SET_FLAG(message, ZAPI_MESSAGE_NEXTHOP); + SET_FLAG(message, ZAPI_MESSAGE_METRIC); #if 0 SET_FLAG (message, ZAPI_MESSAGE_DISTANCE); #endif - stream = zclient->obuf; - stream_reset (stream); - zclient_create_header (stream, ZEBRA_IPV4_ROUTE_ADD, VRF_DEFAULT); - /* type */ - stream_putc (stream, ZEBRA_ROUTE_ISIS); - /* instance */ - stream_putw (stream, 0); - /* flags */ - stream_putl (stream, flags); - /* message */ - stream_putc (stream, message); - /* SAFI */ - stream_putw (stream, SAFI_UNICAST); - /* prefix information */ - psize = PSIZE (prefix->prefixlen); - stream_putc (stream, prefix->prefixlen); - stream_write (stream, (u_char *) & prefix->u.prefix4, psize); - - stream_putc (stream, listcount (route_info->nexthops)); - - /* Nexthop, ifindex, distance and metric information */ - for (ALL_LIST_ELEMENTS_RO (route_info->nexthops, node, nexthop)) - { - /* FIXME: can it be ? */ - if (nexthop->ip.s_addr != INADDR_ANY) - { - stream_putc (stream, NEXTHOP_TYPE_IPV4); - stream_put_in_addr (stream, &nexthop->ip); - } - else - { - stream_putc (stream, NEXTHOP_TYPE_IFINDEX); - stream_putl (stream, nexthop->ifindex); - } - } + stream = zclient->obuf; + stream_reset(stream); + zclient_create_header(stream, ZEBRA_IPV4_ROUTE_ADD, + VRF_DEFAULT); + /* type */ + stream_putc(stream, ZEBRA_ROUTE_ISIS); + /* instance */ + stream_putw(stream, 0); + /* flags */ + stream_putl(stream, flags); + /* message */ + stream_putc(stream, message); + /* SAFI */ + stream_putw(stream, SAFI_UNICAST); + /* prefix information */ + psize = PSIZE(prefix->prefixlen); + stream_putc(stream, prefix->prefixlen); + stream_write(stream, (u_char *)&prefix->u.prefix4, psize); + + stream_putc(stream, listcount(route_info->nexthops)); + + /* Nexthop, ifindex, distance and metric information */ + for (ALL_LIST_ELEMENTS_RO(route_info->nexthops, node, + nexthop)) { + /* FIXME: can it be ? */ + if (nexthop->ip.s_addr != INADDR_ANY) { + stream_putc(stream, NEXTHOP_TYPE_IPV4); + stream_put_in_addr(stream, &nexthop->ip); + } else { + stream_putc(stream, NEXTHOP_TYPE_IFINDEX); + stream_putl(stream, nexthop->ifindex); + } + } #if 0 if (CHECK_FLAG (message, ZAPI_MESSAGE_DISTANCE)) stream_putc (stream, route_info->depth); #endif - if (CHECK_FLAG (message, ZAPI_MESSAGE_METRIC)) - stream_putl (stream, route_info->cost); - - stream_putw_at (stream, 0, stream_get_endp (stream)); - zclient_send_message(zclient); - SET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); - UNSET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_RESYNC); - } + if (CHECK_FLAG(message, ZAPI_MESSAGE_METRIC)) + stream_putl(stream, route_info->cost); + + stream_putw_at(stream, 0, stream_get_endp(stream)); + zclient_send_message(zclient); + SET_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); + UNSET_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_RESYNC); + } } -static void -isis_zebra_route_del_ipv4 (struct prefix *prefix, - struct isis_route_info *route_info) +static void isis_zebra_route_del_ipv4(struct prefix *prefix, + struct isis_route_info *route_info) { - struct zapi_ipv4 api; - struct prefix_ipv4 prefix4; - - if (vrf_bitmap_check (zclient->redist[AFI_IP][ZEBRA_ROUTE_ISIS], VRF_DEFAULT)) - { - api.vrf_id = VRF_DEFAULT; - api.type = ZEBRA_ROUTE_ISIS; - api.instance = 0; - api.flags = 0; - api.message = 0; - api.safi = SAFI_UNICAST; - prefix4.family = AF_INET; - prefix4.prefixlen = prefix->prefixlen; - prefix4.prefix = prefix->u.prefix4; - zapi_ipv4_route (ZEBRA_IPV4_ROUTE_DELETE, zclient, &prefix4, &api); - } - UNSET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); - - return; + struct zapi_ipv4 api; + struct prefix_ipv4 prefix4; + + if (vrf_bitmap_check(zclient->redist[AFI_IP][ZEBRA_ROUTE_ISIS], + VRF_DEFAULT)) { + api.vrf_id = VRF_DEFAULT; + api.type = ZEBRA_ROUTE_ISIS; + api.instance = 0; + api.flags = 0; + api.message = 0; + api.safi = SAFI_UNICAST; + prefix4.family = AF_INET; + prefix4.prefixlen = prefix->prefixlen; + prefix4.prefix = prefix->u.prefix4; + zapi_ipv4_route(ZEBRA_IPV4_ROUTE_DELETE, zclient, &prefix4, + &api); + } + UNSET_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); + + return; } -static void -isis_zebra_route_add_ipv6 (struct prefix *prefix, - struct isis_route_info *route_info) +static void isis_zebra_route_add_ipv6(struct prefix *prefix, + struct isis_route_info *route_info) { - struct zapi_ipv6 api; - struct in6_addr **nexthop_list; - ifindex_t *ifindex_list; - struct isis_nexthop6 *nexthop6; - int i, size; - struct listnode *node; - struct prefix_ipv6 prefix6; - - if (CHECK_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED)) - return; - - api.vrf_id = VRF_DEFAULT; - api.type = ZEBRA_ROUTE_ISIS; - api.instance = 0; - api.flags = 0; - api.message = 0; - api.safi = SAFI_UNICAST; - SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); - SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX); - SET_FLAG (api.message, ZAPI_MESSAGE_METRIC); - api.metric = route_info->cost; + struct zapi_ipv6 api; + struct in6_addr **nexthop_list; + ifindex_t *ifindex_list; + struct isis_nexthop6 *nexthop6; + int i, size; + struct listnode *node; + struct prefix_ipv6 prefix6; + + if (CHECK_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED)) + return; + + api.vrf_id = VRF_DEFAULT; + api.type = ZEBRA_ROUTE_ISIS; + api.instance = 0; + api.flags = 0; + api.message = 0; + api.safi = SAFI_UNICAST; + SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); + SET_FLAG(api.message, ZAPI_MESSAGE_IFINDEX); + SET_FLAG(api.message, ZAPI_MESSAGE_METRIC); + api.metric = route_info->cost; #if 0 SET_FLAG (api.message, ZAPI_MESSAGE_DISTANCE); api.distance = route_info->depth; #endif - api.nexthop_num = listcount (route_info->nexthops6); - api.ifindex_num = listcount (route_info->nexthops6); - - /* allocate memory for nexthop_list */ - size = sizeof (struct isis_nexthop6 *) * listcount (route_info->nexthops6); - nexthop_list = (struct in6_addr **) XMALLOC (MTYPE_ISIS_TMP, size); - if (!nexthop_list) - { - zlog_err ("isis_zebra_add_route_ipv6: out of memory!"); - return; - } - - /* allocate memory for ifindex_list */ - size = sizeof (unsigned int) * listcount (route_info->nexthops6); - ifindex_list = (ifindex_t *) XMALLOC (MTYPE_ISIS_TMP, size); - if (!ifindex_list) - { - zlog_err ("isis_zebra_add_route_ipv6: out of memory!"); - XFREE (MTYPE_ISIS_TMP, nexthop_list); - return; - } - - /* for each nexthop */ - i = 0; - for (ALL_LIST_ELEMENTS_RO (route_info->nexthops6, node, nexthop6)) - { - if (!IN6_IS_ADDR_LINKLOCAL (&nexthop6->ip6) && - !IN6_IS_ADDR_UNSPECIFIED (&nexthop6->ip6)) - { - api.nexthop_num--; - api.ifindex_num--; - continue; + api.nexthop_num = listcount(route_info->nexthops6); + api.ifindex_num = listcount(route_info->nexthops6); + + /* allocate memory for nexthop_list */ + size = sizeof(struct isis_nexthop6 *) + * listcount(route_info->nexthops6); + nexthop_list = (struct in6_addr **)XMALLOC(MTYPE_ISIS_TMP, size); + if (!nexthop_list) { + zlog_err("isis_zebra_add_route_ipv6: out of memory!"); + return; } - nexthop_list[i] = &nexthop6->ip6; - ifindex_list[i] = nexthop6->ifindex; - i++; - } + /* allocate memory for ifindex_list */ + size = sizeof(unsigned int) * listcount(route_info->nexthops6); + ifindex_list = (ifindex_t *)XMALLOC(MTYPE_ISIS_TMP, size); + if (!ifindex_list) { + zlog_err("isis_zebra_add_route_ipv6: out of memory!"); + XFREE(MTYPE_ISIS_TMP, nexthop_list); + return; + } - api.nexthop = nexthop_list; - api.ifindex = ifindex_list; + /* for each nexthop */ + i = 0; + for (ALL_LIST_ELEMENTS_RO(route_info->nexthops6, node, nexthop6)) { + if (!IN6_IS_ADDR_LINKLOCAL(&nexthop6->ip6) + && !IN6_IS_ADDR_UNSPECIFIED(&nexthop6->ip6)) { + api.nexthop_num--; + api.ifindex_num--; + continue; + } + + nexthop_list[i] = &nexthop6->ip6; + ifindex_list[i] = nexthop6->ifindex; + i++; + } - if (api.nexthop_num && api.ifindex_num) - { - prefix6.family = AF_INET6; - prefix6.prefixlen = prefix->prefixlen; - memcpy (&prefix6.prefix, &prefix->u.prefix6, sizeof (struct in6_addr)); - zapi_ipv6_route (ZEBRA_IPV6_ROUTE_ADD, zclient, &prefix6, NULL, &api); - SET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); - UNSET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_RESYNC); - } + api.nexthop = nexthop_list; + api.ifindex = ifindex_list; + + if (api.nexthop_num && api.ifindex_num) { + prefix6.family = AF_INET6; + prefix6.prefixlen = prefix->prefixlen; + memcpy(&prefix6.prefix, &prefix->u.prefix6, + sizeof(struct in6_addr)); + zapi_ipv6_route(ZEBRA_IPV6_ROUTE_ADD, zclient, &prefix6, NULL, + &api); + SET_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); + UNSET_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_RESYNC); + } - XFREE (MTYPE_ISIS_TMP, nexthop_list); - XFREE (MTYPE_ISIS_TMP, ifindex_list); + XFREE(MTYPE_ISIS_TMP, nexthop_list); + XFREE(MTYPE_ISIS_TMP, ifindex_list); - return; + return; } -static void -isis_zebra_route_del_ipv6 (struct prefix *prefix, - struct isis_route_info *route_info) +static void isis_zebra_route_del_ipv6(struct prefix *prefix, + struct isis_route_info *route_info) { - struct zapi_ipv6 api; - struct in6_addr **nexthop_list; - ifindex_t *ifindex_list; - struct isis_nexthop6 *nexthop6; - int i, size; - struct listnode *node; - struct prefix_ipv6 prefix6; - - if (!CHECK_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED)) - return; - - api.vrf_id = VRF_DEFAULT; - api.type = ZEBRA_ROUTE_ISIS; - api.instance = 0; - api.flags = 0; - api.message = 0; - api.safi = SAFI_UNICAST; - SET_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP); - SET_FLAG (api.message, ZAPI_MESSAGE_IFINDEX); - api.nexthop_num = listcount (route_info->nexthops6); - api.ifindex_num = listcount (route_info->nexthops6); - - /* allocate memory for nexthop_list */ - size = sizeof (struct isis_nexthop6 *) * listcount (route_info->nexthops6); - nexthop_list = (struct in6_addr **) XMALLOC (MTYPE_ISIS_TMP, size); - if (!nexthop_list) - { - zlog_err ("isis_zebra_route_del_ipv6: out of memory!"); - return; - } - - /* allocate memory for ifindex_list */ - size = sizeof (unsigned int) * listcount (route_info->nexthops6); - ifindex_list = (ifindex_t *) XMALLOC (MTYPE_ISIS_TMP, size); - if (!ifindex_list) - { - zlog_err ("isis_zebra_route_del_ipv6: out of memory!"); - XFREE (MTYPE_ISIS_TMP, nexthop_list); - return; - } - - /* for each nexthop */ - i = 0; - for (ALL_LIST_ELEMENTS_RO (route_info->nexthops6, node, nexthop6)) - { - if (!IN6_IS_ADDR_LINKLOCAL (&nexthop6->ip6) && - !IN6_IS_ADDR_UNSPECIFIED (&nexthop6->ip6)) - { - api.nexthop_num--; - api.ifindex_num--; - continue; + struct zapi_ipv6 api; + struct in6_addr **nexthop_list; + ifindex_t *ifindex_list; + struct isis_nexthop6 *nexthop6; + int i, size; + struct listnode *node; + struct prefix_ipv6 prefix6; + + if (!CHECK_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED)) + return; + + api.vrf_id = VRF_DEFAULT; + api.type = ZEBRA_ROUTE_ISIS; + api.instance = 0; + api.flags = 0; + api.message = 0; + api.safi = SAFI_UNICAST; + SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); + SET_FLAG(api.message, ZAPI_MESSAGE_IFINDEX); + api.nexthop_num = listcount(route_info->nexthops6); + api.ifindex_num = listcount(route_info->nexthops6); + + /* allocate memory for nexthop_list */ + size = sizeof(struct isis_nexthop6 *) + * listcount(route_info->nexthops6); + nexthop_list = (struct in6_addr **)XMALLOC(MTYPE_ISIS_TMP, size); + if (!nexthop_list) { + zlog_err("isis_zebra_route_del_ipv6: out of memory!"); + return; + } + + /* allocate memory for ifindex_list */ + size = sizeof(unsigned int) * listcount(route_info->nexthops6); + ifindex_list = (ifindex_t *)XMALLOC(MTYPE_ISIS_TMP, size); + if (!ifindex_list) { + zlog_err("isis_zebra_route_del_ipv6: out of memory!"); + XFREE(MTYPE_ISIS_TMP, nexthop_list); + return; } - nexthop_list[i] = &nexthop6->ip6; - ifindex_list[i] = nexthop6->ifindex; - i++; - } - - api.nexthop = nexthop_list; - api.ifindex = ifindex_list; - - if (api.nexthop_num && api.ifindex_num) - { - prefix6.family = AF_INET6; - prefix6.prefixlen = prefix->prefixlen; - memcpy (&prefix6.prefix, &prefix->u.prefix6, sizeof (struct in6_addr)); - zapi_ipv6_route (ZEBRA_IPV6_ROUTE_DELETE, zclient, &prefix6, NULL, &api); - UNSET_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); - } - - XFREE (MTYPE_ISIS_TMP, nexthop_list); - XFREE (MTYPE_ISIS_TMP, ifindex_list); + /* for each nexthop */ + i = 0; + for (ALL_LIST_ELEMENTS_RO(route_info->nexthops6, node, nexthop6)) { + if (!IN6_IS_ADDR_LINKLOCAL(&nexthop6->ip6) + && !IN6_IS_ADDR_UNSPECIFIED(&nexthop6->ip6)) { + api.nexthop_num--; + api.ifindex_num--; + continue; + } + + nexthop_list[i] = &nexthop6->ip6; + ifindex_list[i] = nexthop6->ifindex; + i++; + } + + api.nexthop = nexthop_list; + api.ifindex = ifindex_list; + + if (api.nexthop_num && api.ifindex_num) { + prefix6.family = AF_INET6; + prefix6.prefixlen = prefix->prefixlen; + memcpy(&prefix6.prefix, &prefix->u.prefix6, + sizeof(struct in6_addr)); + zapi_ipv6_route(ZEBRA_IPV6_ROUTE_DELETE, zclient, &prefix6, + NULL, &api); + UNSET_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ZEBRA_SYNCED); + } + + XFREE(MTYPE_ISIS_TMP, nexthop_list); + XFREE(MTYPE_ISIS_TMP, ifindex_list); } -void -isis_zebra_route_update (struct prefix *prefix, - struct isis_route_info *route_info) +void isis_zebra_route_update(struct prefix *prefix, + struct isis_route_info *route_info) { - if (zclient->sock < 0) - return; - - if ((prefix->family == AF_INET && !vrf_bitmap_check (zclient->redist[AFI_IP][ZEBRA_ROUTE_ISIS], VRF_DEFAULT)) || - (prefix->family == AF_INET6 && !vrf_bitmap_check (zclient->redist[AFI_IP6][ZEBRA_ROUTE_ISIS], VRF_DEFAULT))) - return; - - if (CHECK_FLAG (route_info->flag, ISIS_ROUTE_FLAG_ACTIVE)) - { - if (prefix->family == AF_INET) - isis_zebra_route_add_ipv4 (prefix, route_info); - else if (prefix->family == AF_INET6) - isis_zebra_route_add_ipv6 (prefix, route_info); - } - else - { - if (prefix->family == AF_INET) - isis_zebra_route_del_ipv4 (prefix, route_info); - else if (prefix->family == AF_INET6) - isis_zebra_route_del_ipv6 (prefix, route_info); - } - return; + if (zclient->sock < 0) + return; + + if ((prefix->family == AF_INET + && !vrf_bitmap_check(zclient->redist[AFI_IP][ZEBRA_ROUTE_ISIS], + VRF_DEFAULT)) + || (prefix->family == AF_INET6 + && !vrf_bitmap_check(zclient->redist[AFI_IP6][ZEBRA_ROUTE_ISIS], + VRF_DEFAULT))) + return; + + if (CHECK_FLAG(route_info->flag, ISIS_ROUTE_FLAG_ACTIVE)) { + if (prefix->family == AF_INET) + isis_zebra_route_add_ipv4(prefix, route_info); + else if (prefix->family == AF_INET6) + isis_zebra_route_add_ipv6(prefix, route_info); + } else { + if (prefix->family == AF_INET) + isis_zebra_route_del_ipv4(prefix, route_info); + else if (prefix->family == AF_INET6) + isis_zebra_route_del_ipv6(prefix, route_info); + } + return; } -static int -isis_zebra_read_ipv4 (int command, struct zclient *zclient, - zebra_size_t length, vrf_id_t vrf_id) +static int isis_zebra_read_ipv4(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct stream *stream; - struct zapi_ipv4 api; - struct prefix_ipv4 p; - struct prefix *p_generic = (struct prefix*)&p; - - stream = zclient->ibuf; - memset(&api, 0, sizeof(api)); - memset (&p, 0, sizeof (struct prefix_ipv4)); - - api.type = stream_getc (stream); - api.instance = stream_getw (stream); - api.flags = stream_getl (stream); - api.message = stream_getc (stream); - - p.family = AF_INET; - p.prefixlen = MIN(IPV4_MAX_PREFIXLEN, stream_getc (stream)); - stream_get (&p.prefix, stream, PSIZE (p.prefixlen)); - - if (CHECK_FLAG (api.message, ZAPI_MESSAGE_NEXTHOP)) - { - api.nexthop_num = stream_getc (stream); - (void)stream_get_ipv4 (stream); - } - if (CHECK_FLAG (api.message, ZAPI_MESSAGE_IFINDEX)) - { - api.ifindex_num = stream_getc (stream); - stream_getl (stream); - } - if (CHECK_FLAG (api.message, ZAPI_MESSAGE_DISTANCE)) - api.distance = stream_getc (stream); - if (CHECK_FLAG (api.message, ZAPI_MESSAGE_METRIC)) - api.metric = stream_getl (stream); - - /* - * Avoid advertising a false default reachability. (A default - * route installed by IS-IS gets redistributed from zebra back - * into IS-IS causing us to start advertising default reachabity - * without this check) - */ - if (p.prefixlen == 0 && api.type == ZEBRA_ROUTE_ISIS) - command = ZEBRA_IPV4_ROUTE_DELETE; - - if (command == ZEBRA_REDISTRIBUTE_IPV4_ADD) - isis_redist_add(api.type, p_generic, api.distance, api.metric); - else - isis_redist_delete(api.type, p_generic); - - return 0; + struct stream *stream; + struct zapi_ipv4 api; + struct prefix_ipv4 p; + struct prefix *p_generic = (struct prefix *)&p; + + stream = zclient->ibuf; + memset(&api, 0, sizeof(api)); + memset(&p, 0, sizeof(struct prefix_ipv4)); + + api.type = stream_getc(stream); + api.instance = stream_getw(stream); + api.flags = stream_getl(stream); + api.message = stream_getc(stream); + + p.family = AF_INET; + p.prefixlen = MIN(IPV4_MAX_PREFIXLEN, stream_getc(stream)); + stream_get(&p.prefix, stream, PSIZE(p.prefixlen)); + + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { + api.nexthop_num = stream_getc(stream); + (void)stream_get_ipv4(stream); + } + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX)) { + api.ifindex_num = stream_getc(stream); + stream_getl(stream); + } + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) + api.distance = stream_getc(stream); + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) + api.metric = stream_getl(stream); + + /* + * Avoid advertising a false default reachability. (A default + * route installed by IS-IS gets redistributed from zebra back + * into IS-IS causing us to start advertising default reachabity + * without this check) + */ + if (p.prefixlen == 0 && api.type == ZEBRA_ROUTE_ISIS) + command = ZEBRA_IPV4_ROUTE_DELETE; + + if (command == ZEBRA_REDISTRIBUTE_IPV4_ADD) + isis_redist_add(api.type, p_generic, api.distance, api.metric); + else + isis_redist_delete(api.type, p_generic); + + return 0; } -static int -isis_zebra_read_ipv6 (int command, struct zclient *zclient, - zebra_size_t length, vrf_id_t vrf_id) +static int isis_zebra_read_ipv6(int command, struct zclient *zclient, + zebra_size_t length, vrf_id_t vrf_id) { - struct stream *stream; - struct zapi_ipv6 api; - struct prefix_ipv6 p; - struct prefix src_p; - struct prefix *p_generic = (struct prefix*)&p; - struct in6_addr nexthop; - unsigned long ifindex __attribute__((unused)); - - stream = zclient->ibuf; - memset(&api, 0, sizeof(api)); - memset(&p, 0, sizeof(struct prefix_ipv6)); - memset(&nexthop, 0, sizeof(nexthop)); - ifindex = 0; - - api.type = stream_getc(stream); - api.instance = stream_getw(stream); - api.flags = stream_getl(stream); - api.message = stream_getc(stream); - - p.family = AF_INET6; - p.prefixlen = stream_getc(stream); - stream_get(&p.prefix, stream, PSIZE(p.prefixlen)); - - memset(&src_p, 0, sizeof (struct prefix)); - src_p.family = AF_INET6; - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) - { - src_p.prefixlen = stream_getc(stream); - stream_get(&src_p.u.prefix6, stream, PSIZE (src_p.prefixlen)); - } - - if (src_p.prefixlen) - /* we completely ignore srcdest routes for now. */ - return 0; - - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) - { - api.nexthop_num = stream_getc(stream); /* this is always 1 */ - stream_get(&nexthop, stream, sizeof(nexthop)); - } - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX)) - { - api.ifindex_num = stream_getc(stream); - ifindex = stream_getl(stream); - } - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) - api.distance = stream_getc(stream); - if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) - api.metric = stream_getl(stream); - if (CHECK_FLAG (api.message, ZAPI_MESSAGE_TAG)) - api.tag = stream_getl(stream); - - /* - * Avoid advertising a false default reachability. (A default - * route installed by IS-IS gets redistributed from zebra back - * into IS-IS causing us to start advertising default reachabity - * without this check) - */ - if (p.prefixlen == 0 && api.type == ZEBRA_ROUTE_ISIS) - command = ZEBRA_IPV6_ROUTE_DELETE; - - if (command == ZEBRA_REDISTRIBUTE_IPV6_ADD) - isis_redist_add(api.type, p_generic, api.distance, api.metric); - else - isis_redist_delete(api.type, p_generic); - - return 0; + struct stream *stream; + struct zapi_ipv6 api; + struct prefix_ipv6 p; + struct prefix src_p; + struct prefix *p_generic = (struct prefix *)&p; + struct in6_addr nexthop; + unsigned long ifindex __attribute__((unused)); + + stream = zclient->ibuf; + memset(&api, 0, sizeof(api)); + memset(&p, 0, sizeof(struct prefix_ipv6)); + memset(&nexthop, 0, sizeof(nexthop)); + ifindex = 0; + + api.type = stream_getc(stream); + api.instance = stream_getw(stream); + api.flags = stream_getl(stream); + api.message = stream_getc(stream); + + p.family = AF_INET6; + p.prefixlen = stream_getc(stream); + stream_get(&p.prefix, stream, PSIZE(p.prefixlen)); + + memset(&src_p, 0, sizeof(struct prefix)); + src_p.family = AF_INET6; + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_SRCPFX)) { + src_p.prefixlen = stream_getc(stream); + stream_get(&src_p.u.prefix6, stream, PSIZE(src_p.prefixlen)); + } + + if (src_p.prefixlen) + /* we completely ignore srcdest routes for now. */ + return 0; + + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP)) { + api.nexthop_num = stream_getc(stream); /* this is always 1 */ + stream_get(&nexthop, stream, sizeof(nexthop)); + } + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_IFINDEX)) { + api.ifindex_num = stream_getc(stream); + ifindex = stream_getl(stream); + } + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_DISTANCE)) + api.distance = stream_getc(stream); + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_METRIC)) + api.metric = stream_getl(stream); + if (CHECK_FLAG(api.message, ZAPI_MESSAGE_TAG)) + api.tag = stream_getl(stream); + + /* + * Avoid advertising a false default reachability. (A default + * route installed by IS-IS gets redistributed from zebra back + * into IS-IS causing us to start advertising default reachabity + * without this check) + */ + if (p.prefixlen == 0 && api.type == ZEBRA_ROUTE_ISIS) + command = ZEBRA_IPV6_ROUTE_DELETE; + + if (command == ZEBRA_REDISTRIBUTE_IPV6_ADD) + isis_redist_add(api.type, p_generic, api.distance, api.metric); + else + isis_redist_delete(api.type, p_generic); + + return 0; } -int -isis_distribute_list_update (int routetype) +int isis_distribute_list_update(int routetype) { - return 0; + return 0; } -void -isis_zebra_redistribute_set(afi_t afi, int type) +void isis_zebra_redistribute_set(afi_t afi, int type) { - if (type == DEFAULT_ROUTE) - zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_ADD, zclient, VRF_DEFAULT); - else - zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, 0, VRF_DEFAULT); + if (type == DEFAULT_ROUTE) + zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_ADD, + zclient, VRF_DEFAULT); + else + zclient_redistribute(ZEBRA_REDISTRIBUTE_ADD, zclient, afi, type, + 0, VRF_DEFAULT); } -void -isis_zebra_redistribute_unset(afi_t afi, int type) +void isis_zebra_redistribute_unset(afi_t afi, int type) { - if (type == DEFAULT_ROUTE) - zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, zclient, VRF_DEFAULT); - else - zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, type, 0, VRF_DEFAULT); + if (type == DEFAULT_ROUTE) + zclient_redistribute_default(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE, + zclient, VRF_DEFAULT); + else + zclient_redistribute(ZEBRA_REDISTRIBUTE_DELETE, zclient, afi, + type, 0, VRF_DEFAULT); } -static void -isis_zebra_connected (struct zclient *zclient) +static void isis_zebra_connected(struct zclient *zclient) { - zclient_send_reg_requests (zclient, VRF_DEFAULT); + zclient_send_reg_requests(zclient, VRF_DEFAULT); } -void -isis_zebra_init (struct thread_master *master) +void isis_zebra_init(struct thread_master *master) { - zclient = zclient_new (master); - zclient_init (zclient, ZEBRA_ROUTE_ISIS, 0); - zclient->zebra_connected = isis_zebra_connected; - zclient->router_id_update = isis_router_id_update_zebra; - zclient->interface_add = isis_zebra_if_add; - zclient->interface_delete = isis_zebra_if_del; - zclient->interface_up = isis_zebra_if_state_up; - zclient->interface_down = isis_zebra_if_state_down; - zclient->interface_address_add = isis_zebra_if_address_add; - zclient->interface_address_delete = isis_zebra_if_address_del; - zclient->interface_link_params = isis_zebra_link_params; - zclient->redistribute_route_ipv4_add = isis_zebra_read_ipv4; - zclient->redistribute_route_ipv4_del = isis_zebra_read_ipv4; - zclient->redistribute_route_ipv6_add = isis_zebra_read_ipv6; - zclient->redistribute_route_ipv6_del = isis_zebra_read_ipv6; - - return; + zclient = zclient_new(master); + zclient_init(zclient, ZEBRA_ROUTE_ISIS, 0); + zclient->zebra_connected = isis_zebra_connected; + zclient->router_id_update = isis_router_id_update_zebra; + zclient->interface_add = isis_zebra_if_add; + zclient->interface_delete = isis_zebra_if_del; + zclient->interface_up = isis_zebra_if_state_up; + zclient->interface_down = isis_zebra_if_state_down; + zclient->interface_address_add = isis_zebra_if_address_add; + zclient->interface_address_delete = isis_zebra_if_address_del; + zclient->interface_link_params = isis_zebra_link_params; + zclient->redistribute_route_ipv4_add = isis_zebra_read_ipv4; + zclient->redistribute_route_ipv4_del = isis_zebra_read_ipv4; + zclient->redistribute_route_ipv6_add = isis_zebra_read_ipv6; + zclient->redistribute_route_ipv6_del = isis_zebra_read_ipv6; + + return; } |