diff options
Diffstat (limited to 'ospf6d/ospf6_interface.c')
| -rw-r--r-- | ospf6d/ospf6_interface.c | 3142 |
1 files changed, 3142 insertions, 0 deletions
diff --git a/ospf6d/ospf6_interface.c b/ospf6d/ospf6_interface.c new file mode 100644 index 0000000..a79f993 --- /dev/null +++ b/ospf6d/ospf6_interface.c @@ -0,0 +1,3142 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2003 Yasuhiro Ohara + */ + +#include <zebra.h> + +#include "memory.h" +#include "if.h" +#include "log.h" +#include "command.h" +#include "frrevent.h" +#include "prefix.h" +#include "plist.h" +#include "zclient.h" + +#include "ospf6_lsa.h" +#include "ospf6_lsdb.h" +#include "ospf6_top.h" +#include "ospf6_network.h" +#include "ospf6_message.h" +#include "ospf6_route.h" +#include "ospf6_area.h" +#include "ospf6_abr.h" +#include "ospf6_nssa.h" +#include "ospf6_interface.h" +#include "ospf6_neighbor.h" +#include "ospf6_intra.h" +#include "ospf6_spf.h" +#include "ospf6d.h" +#include "ospf6_bfd.h" +#include "ospf6_zebra.h" +#include "ospf6_gr.h" +#include "lib/json.h" +#include "ospf6_proto.h" +#include "lib/keychain.h" +#include "ospf6_auth_trailer.h" +#include "ospf6d/ospf6_interface_clippy.c" + +DEFINE_MTYPE_STATIC(OSPF6D, OSPF6_IF, "OSPF6 interface"); +DEFINE_MTYPE(OSPF6D, OSPF6_AUTH_KEYCHAIN, "OSPF6 auth keychain"); +DEFINE_MTYPE(OSPF6D, OSPF6_AUTH_MANUAL_KEY, "OSPF6 auth key"); +DEFINE_MTYPE_STATIC(OSPF6D, CFG_PLIST_NAME, "configured prefix list names"); +DEFINE_QOBJ_TYPE(ospf6_interface); +DEFINE_HOOK(ospf6_interface_change, + (struct ospf6_interface * oi, int state, int old_state), + (oi, state, old_state)); + +unsigned char conf_debug_ospf6_interface = 0; + +const char *const ospf6_interface_state_str[] = { + "None", "Down", "Loopback", "Waiting", "PointToPoint", + "DROther", "BDR", "DR", NULL}; + +int ospf6_interface_neighbor_count(struct ospf6_interface *oi) +{ + int count = 0; + struct ospf6_neighbor *nbr = NULL; + struct listnode *node; + + for (ALL_LIST_ELEMENTS_RO(oi->neighbor_list, node, nbr)) { + /* Down state is not shown. */ + if (nbr->state == OSPF6_NEIGHBOR_DOWN) + continue; + count++; + } + + return count; +} + +struct ospf6_interface *ospf6_interface_lookup_by_ifindex(ifindex_t ifindex, + vrf_id_t vrf_id) +{ + struct ospf6_interface *oi; + struct interface *ifp; + + ifp = if_lookup_by_index(ifindex, vrf_id); + if (ifp == NULL) + return (struct ospf6_interface *)NULL; + + oi = (struct ospf6_interface *)ifp->info; + return oi; +} + +/* schedule routing table recalculation */ +static void ospf6_interface_lsdb_hook(struct ospf6_lsa *lsa, + unsigned int reason) +{ + struct ospf6_interface *oi; + + if (lsa == NULL) + return; + + oi = lsa->lsdb->data; + switch (ntohs(lsa->header->type)) { + case OSPF6_LSTYPE_LINK: + if (oi->state == OSPF6_INTERFACE_DR) + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi); + if (oi->area) + ospf6_spf_schedule(oi->area->ospf6, reason); + break; + + default: + break; + } +} + +static void ospf6_interface_lsdb_hook_add(struct ospf6_lsa *lsa) +{ + ospf6_interface_lsdb_hook(lsa, ospf6_lsadd_to_spf_reason(lsa)); +} + +static void ospf6_interface_lsdb_hook_remove(struct ospf6_lsa *lsa) +{ + ospf6_interface_lsdb_hook(lsa, ospf6_lsremove_to_spf_reason(lsa)); +} + +static uint8_t ospf6_default_iftype(struct interface *ifp) +{ + if (if_is_pointopoint(ifp)) + return OSPF_IFTYPE_POINTOPOINT; + else if (if_is_loopback(ifp)) + return OSPF_IFTYPE_LOOPBACK; + else + return OSPF_IFTYPE_BROADCAST; +} + +static uint32_t ospf6_interface_get_cost(struct ospf6_interface *oi) +{ + /* If all else fails, use default OSPF cost */ + uint32_t cost; + uint32_t bw, refbw; + struct ospf6 *ospf6; + + /* interface speed and bw can be 0 in some platforms, + * use ospf default bw. If bw is configured then it would + * be used. + */ + if (!oi->interface->bandwidth && oi->interface->speed) { + bw = oi->interface->speed; + } else { + bw = oi->interface->bandwidth ? oi->interface->bandwidth + : OSPF6_INTERFACE_BANDWIDTH; + } + + ospf6 = oi->interface->vrf->info; + refbw = ospf6 ? ospf6->ref_bandwidth : OSPF6_REFERENCE_BANDWIDTH; + + /* A specified ip ospf cost overrides a calculated one. */ + if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST)) + cost = oi->cost; + else { + cost = (uint32_t)((double)refbw / (double)bw + (double)0.5); + if (cost < 1) + cost = 1; + + /* If the interface type is point-to-multipoint or the interface + * is in the state Loopback, the global scope IPv6 addresses + * associated with the interface (if any) are copied into the + * intra-area-prefix-LSA with the PrefixOptions LA-bit set, the + * PrefixLength set to 128, and the metric set to 0. + */ + if (if_is_loopback(oi->interface)) + cost = 0; + } + + return cost; +} + +static void ospf6_interface_force_recalculate_cost(struct ospf6_interface *oi) +{ + /* update cost held in route_connected list in ospf6_interface */ + ospf6_interface_connected_route_update(oi->interface); + + /* execute LSA hooks */ + if (oi->area) { + OSPF6_LINK_LSA_SCHEDULE(oi); + OSPF6_ROUTER_LSA_SCHEDULE(oi->area); + OSPF6_NETWORK_LSA_SCHEDULE(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area); + } +} + +static void ospf6_interface_recalculate_cost(struct ospf6_interface *oi) +{ + uint32_t newcost; + + newcost = ospf6_interface_get_cost(oi); + if (newcost == oi->cost) + return; + oi->cost = newcost; + + ospf6_interface_force_recalculate_cost(oi); +} + +/* Create new ospf6 interface structure */ +struct ospf6_interface *ospf6_interface_create(struct interface *ifp) +{ + struct ospf6_interface *oi; + unsigned int iobuflen; + + oi = XCALLOC(MTYPE_OSPF6_IF, sizeof(struct ospf6_interface)); + + oi->obuf = ospf6_fifo_new(); + + oi->area = (struct ospf6_area *)NULL; + oi->neighbor_list = list_new(); + oi->neighbor_list->cmp = ospf6_neighbor_cmp; + oi->linklocal_addr = (struct in6_addr *)NULL; + oi->instance_id = OSPF6_INTERFACE_INSTANCE_ID; + oi->transdelay = OSPF6_INTERFACE_TRANSDELAY; + oi->priority = OSPF6_INTERFACE_PRIORITY; + + oi->hello_interval = OSPF_HELLO_INTERVAL_DEFAULT; + oi->gr.hello_delay.interval = OSPF_HELLO_DELAY_DEFAULT; + oi->dead_interval = OSPF_ROUTER_DEAD_INTERVAL_DEFAULT; + oi->rxmt_interval = OSPF_RETRANSMIT_INTERVAL_DEFAULT; + oi->type = ospf6_default_iftype(ifp); + oi->state = OSPF6_INTERFACE_DOWN; + oi->flag = 0; + oi->mtu_ignore = 0; + oi->c_ifmtu = 0; + + /* Try to adjust I/O buffer size with IfMtu */ + oi->ifmtu = ifp->mtu6; + iobuflen = ospf6_iobuf_size(ifp->mtu6); + if (oi->ifmtu > iobuflen) { + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug( + "Interface %s: IfMtu is adjusted to I/O buffer size: %d.", + ifp->name, iobuflen); + oi->ifmtu = iobuflen; + } + + QOBJ_REG(oi, ospf6_interface); + + oi->lsupdate_list = ospf6_lsdb_create(oi); + oi->lsack_list = ospf6_lsdb_create(oi); + oi->lsdb = ospf6_lsdb_create(oi); + oi->lsdb->hook_add = ospf6_interface_lsdb_hook_add; + oi->lsdb->hook_remove = ospf6_interface_lsdb_hook_remove; + oi->lsdb_self = ospf6_lsdb_create(oi); + + oi->route_connected = + OSPF6_ROUTE_TABLE_CREATE(INTERFACE, CONNECTED_ROUTES); + oi->route_connected->scope = oi; + + /* link both */ + oi->interface = ifp; + ifp->info = oi; + + /* Compute cost. */ + oi->cost = ospf6_interface_get_cost(oi); + + oi->at_data.flags = 0; + + return oi; +} + +void ospf6_interface_delete(struct ospf6_interface *oi) +{ + struct listnode *node, *nnode; + struct ospf6_neighbor *on; + + QOBJ_UNREG(oi); + + ospf6_fifo_free(oi->obuf); + + for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) + ospf6_neighbor_delete(on); + + list_delete(&oi->neighbor_list); + + EVENT_OFF(oi->thread_send_hello); + EVENT_OFF(oi->thread_send_lsupdate); + EVENT_OFF(oi->thread_send_lsack); + EVENT_OFF(oi->thread_sso); + EVENT_OFF(oi->thread_wait_timer); + + ospf6_lsdb_remove_all(oi->lsdb); + ospf6_lsdb_remove_all(oi->lsupdate_list); + ospf6_lsdb_remove_all(oi->lsack_list); + + ospf6_lsdb_delete(oi->lsdb); + ospf6_lsdb_delete(oi->lsdb_self); + + ospf6_lsdb_delete(oi->lsupdate_list); + ospf6_lsdb_delete(oi->lsack_list); + + ospf6_route_table_delete(oi->route_connected); + + /* cut link */ + oi->interface->info = NULL; + + /* plist_name */ + if (oi->plist_name) + XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name); + + /* disable from area list if possible */ + ospf6_area_interface_delete(oi); + + if (oi->at_data.auth_key) + XFREE(MTYPE_OSPF6_AUTH_MANUAL_KEY, oi->at_data.auth_key); + + /* Free BFD allocated data. */ + XFREE(MTYPE_TMP, oi->bfd_config.profile); + + XFREE(MTYPE_OSPF6_IF, oi); +} + +void ospf6_interface_enable(struct ospf6_interface *oi) +{ + UNSET_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE); + ospf6_interface_state_update(oi->interface); +} + +void ospf6_interface_disable(struct ospf6_interface *oi) +{ + SET_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE); + + event_execute(master, interface_down, oi, 0, NULL); + + ospf6_lsdb_remove_all(oi->lsdb); + ospf6_lsdb_remove_all(oi->lsdb_self); + ospf6_lsdb_remove_all(oi->lsupdate_list); + ospf6_lsdb_remove_all(oi->lsack_list); + + EVENT_OFF(oi->thread_send_hello); + EVENT_OFF(oi->thread_send_lsupdate); + EVENT_OFF(oi->thread_send_lsack); + EVENT_OFF(oi->thread_sso); + + EVENT_OFF(oi->thread_network_lsa); + EVENT_OFF(oi->thread_link_lsa); + EVENT_OFF(oi->thread_intra_prefix_lsa); + EVENT_OFF(oi->thread_as_extern_lsa); + EVENT_OFF(oi->thread_wait_timer); + + oi->gr.hello_delay.elapsed_seconds = 0; + EVENT_OFF(oi->gr.hello_delay.t_grace_send); +} + +static struct in6_addr * +ospf6_interface_get_linklocal_address(struct interface *ifp) +{ + struct listnode *n; + struct connected *c; + struct in6_addr *l = (struct in6_addr *)NULL; + + /* for each connected address */ + for (ALL_LIST_ELEMENTS_RO(ifp->connected, n, c)) { + /* if family not AF_INET6, ignore */ + if (c->address->family != AF_INET6) + continue; + + /* linklocal scope check */ + if (IN6_IS_ADDR_LINKLOCAL(&c->address->u.prefix6)) + l = &c->address->u.prefix6; + } + return l; +} + +void ospf6_interface_state_update(struct interface *ifp) +{ + struct ospf6_interface *oi; + unsigned int iobuflen; + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + return; + if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE)) + return; + + /* Adjust the mtu values if the kernel told us something new */ + if (ifp->mtu6 != oi->ifmtu) { + /* If nothing configured, accept it and check for buffer size */ + if (!oi->c_ifmtu) { + oi->ifmtu = ifp->mtu6; + iobuflen = ospf6_iobuf_size(ifp->mtu6); + if (oi->ifmtu > iobuflen) { + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug( + "Interface %s: IfMtu is adjusted to I/O buffer size: %d.", + ifp->name, iobuflen); + oi->ifmtu = iobuflen; + } + } else if (oi->c_ifmtu > ifp->mtu6) { + oi->ifmtu = ifp->mtu6; + zlog_warn( + "Configured mtu %u on %s overridden by kernel %u", + oi->c_ifmtu, ifp->name, ifp->mtu6); + } else + oi->ifmtu = oi->c_ifmtu; + } + + if (if_is_operative(ifp) + && (ospf6_interface_get_linklocal_address(oi->interface) + || if_is_loopback(oi->interface))) + event_execute(master, interface_up, oi, 0, NULL); + else + event_execute(master, interface_down, oi, 0, NULL); + + return; +} + +void ospf6_interface_connected_route_update(struct interface *ifp) +{ + struct ospf6_interface *oi; + struct ospf6_route *route; + struct connected *c; + struct listnode *node, *nnode; + struct in6_addr nh_addr; + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + return; + + /* reset linklocal pointer */ + oi->linklocal_addr = ospf6_interface_get_linklocal_address(ifp); + + /* if area is null, do not make connected-route list */ + if (oi->area == NULL) + return; + + if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE)) + return; + + /* update "route to advertise" interface route table */ + ospf6_route_remove_all(oi->route_connected); + + for (ALL_LIST_ELEMENTS(oi->interface->connected, node, nnode, c)) { + if (c->address->family != AF_INET6) + continue; + + CONTINUE_IF_ADDRESS_LINKLOCAL(IS_OSPF6_DEBUG_INTERFACE, + c->address); + CONTINUE_IF_ADDRESS_UNSPECIFIED(IS_OSPF6_DEBUG_INTERFACE, + c->address); + CONTINUE_IF_ADDRESS_LOOPBACK(IS_OSPF6_DEBUG_INTERFACE, + c->address); + CONTINUE_IF_ADDRESS_V4COMPAT(IS_OSPF6_DEBUG_INTERFACE, + c->address); + CONTINUE_IF_ADDRESS_V4MAPPED(IS_OSPF6_DEBUG_INTERFACE, + c->address); + + /* apply filter */ + if (oi->plist_name) { + struct prefix_list *plist; + enum prefix_list_type ret; + + plist = prefix_list_lookup(AFI_IP6, oi->plist_name); + ret = prefix_list_apply(plist, (void *)c->address); + if (ret == PREFIX_DENY) { + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug( + "%pFX on %s filtered by prefix-list %s ", + c->address, oi->interface->name, + oi->plist_name); + continue; + } + } + + route = ospf6_route_create(oi->area->ospf6); + memcpy(&route->prefix, c->address, sizeof(struct prefix)); + apply_mask(&route->prefix); + route->type = OSPF6_DEST_TYPE_NETWORK; + route->path.area_id = oi->area->area_id; + route->path.type = OSPF6_PATH_TYPE_INTRA; + route->path.cost = oi->cost; + inet_pton(AF_INET6, "::1", &nh_addr); + ospf6_route_add_nexthop(route, oi->interface->ifindex, + &nh_addr); + ospf6_route_add(route, oi->route_connected); + } + + /* create new Link-LSA */ + OSPF6_LINK_LSA_SCHEDULE(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area); +} + +static int ospf6_interface_state_change(uint8_t next_state, + struct ospf6_interface *oi) +{ + uint8_t prev_state; + struct ospf6 *ospf6; + + prev_state = oi->state; + oi->state = next_state; + + if (prev_state == next_state) + return -1; + + if (!oi->area) + return -1; + + /* log */ + if (IS_OSPF6_DEBUG_INTERFACE) { + zlog_debug("Interface state change %s: %s -> %s", + oi->interface->name, + ospf6_interface_state_str[prev_state], + ospf6_interface_state_str[next_state]); + } + oi->state_change++; + + ospf6 = oi->area->ospf6; + + if ((prev_state == OSPF6_INTERFACE_DR + || prev_state == OSPF6_INTERFACE_BDR) + && (next_state != OSPF6_INTERFACE_DR + && next_state != OSPF6_INTERFACE_BDR)) + ospf6_sso(oi->interface->ifindex, &alldrouters6, + IPV6_LEAVE_GROUP, ospf6->fd); + + if ((prev_state != OSPF6_INTERFACE_DR + && prev_state != OSPF6_INTERFACE_BDR) + && (next_state == OSPF6_INTERFACE_DR + || next_state == OSPF6_INTERFACE_BDR)) + ospf6_sso(oi->interface->ifindex, &alldrouters6, + IPV6_JOIN_GROUP, ospf6->fd); + + OSPF6_ROUTER_LSA_SCHEDULE(oi->area); + OSPF6_LINK_LSA_SCHEDULE(oi); + if (next_state == OSPF6_INTERFACE_DOWN) { + OSPF6_NETWORK_LSA_EXECUTE(oi); + OSPF6_INTRA_PREFIX_LSA_EXECUTE_TRANSIT(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area); + } else if (prev_state == OSPF6_INTERFACE_DR + || next_state == OSPF6_INTERFACE_DR) { + OSPF6_NETWORK_LSA_SCHEDULE(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area); + } + + hook_call(ospf6_interface_change, oi, next_state, prev_state); + + return 0; +} + + +/* DR Election, RFC2328 section 9.4 */ + +#define IS_ELIGIBLE(n) \ + ((n)->state >= OSPF6_NEIGHBOR_TWOWAY && (n)->priority != 0) + +static struct ospf6_neighbor *better_bdrouter(struct ospf6_neighbor *a, + struct ospf6_neighbor *b) +{ + if ((a == NULL || !IS_ELIGIBLE(a) || a->drouter == a->router_id) + && (b == NULL || !IS_ELIGIBLE(b) || b->drouter == b->router_id)) + return NULL; + else if (a == NULL || !IS_ELIGIBLE(a) || a->drouter == a->router_id) + return b; + else if (b == NULL || !IS_ELIGIBLE(b) || b->drouter == b->router_id) + return a; + + if (a->bdrouter == a->router_id && b->bdrouter != b->router_id) + return a; + if (a->bdrouter != a->router_id && b->bdrouter == b->router_id) + return b; + + if (a->priority > b->priority) + return a; + if (a->priority < b->priority) + return b; + + if (ntohl(a->router_id) > ntohl(b->router_id)) + return a; + if (ntohl(a->router_id) < ntohl(b->router_id)) + return b; + + zlog_warn("Router-ID duplicate ?"); + return a; +} + +static struct ospf6_neighbor *better_drouter(struct ospf6_neighbor *a, + struct ospf6_neighbor *b) +{ + if ((a == NULL || !IS_ELIGIBLE(a) || a->drouter != a->router_id) + && (b == NULL || !IS_ELIGIBLE(b) || b->drouter != b->router_id)) + return NULL; + else if (a == NULL || !IS_ELIGIBLE(a) || a->drouter != a->router_id) + return b; + else if (b == NULL || !IS_ELIGIBLE(b) || b->drouter != b->router_id) + return a; + + if (a->drouter == a->router_id && b->drouter != b->router_id) + return a; + if (a->drouter != a->router_id && b->drouter == b->router_id) + return b; + + if (a->priority > b->priority) + return a; + if (a->priority < b->priority) + return b; + + if (ntohl(a->router_id) > ntohl(b->router_id)) + return a; + if (ntohl(a->router_id) < ntohl(b->router_id)) + return b; + + zlog_warn("Router-ID duplicate ?"); + return a; +} + +uint8_t dr_election(struct ospf6_interface *oi) +{ + struct ospf6 *ospf6 = oi->area->ospf6; + struct listnode *node, *nnode; + struct ospf6_neighbor *on, *drouter, *bdrouter, myself; + struct ospf6_neighbor *best_drouter, *best_bdrouter; + uint8_t next_state = 0; + + drouter = bdrouter = NULL; + best_drouter = best_bdrouter = NULL; + + /* pseudo neighbor myself, including noting current DR/BDR (1) */ + memset(&myself, 0, sizeof(myself)); + inet_ntop(AF_INET, &ospf6->router_id, myself.name, sizeof(myself.name)); + myself.state = OSPF6_NEIGHBOR_TWOWAY; + myself.drouter = oi->drouter; + myself.bdrouter = oi->bdrouter; + myself.priority = oi->priority; + myself.router_id = ospf6->router_id; + + /* Electing BDR (2) */ + for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) + bdrouter = better_bdrouter(bdrouter, on); + + best_bdrouter = bdrouter; + bdrouter = better_bdrouter(best_bdrouter, &myself); + + /* Electing DR (3) */ + for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) + drouter = better_drouter(drouter, on); + + best_drouter = drouter; + drouter = better_drouter(best_drouter, &myself); + if (drouter == NULL) + drouter = bdrouter; + + /* the router itself is newly/no longer DR/BDR (4) */ + if ((drouter == &myself && myself.drouter != myself.router_id) + || (drouter != &myself && myself.drouter == myself.router_id) + || (bdrouter == &myself && myself.bdrouter != myself.router_id) + || (bdrouter != &myself && myself.bdrouter == myself.router_id)) { + myself.drouter = (drouter ? drouter->router_id : htonl(0)); + myself.bdrouter = (bdrouter ? bdrouter->router_id : htonl(0)); + + /* compatible to Electing BDR (2) */ + bdrouter = better_bdrouter(best_bdrouter, &myself); + + /* compatible to Electing DR (3) */ + drouter = better_drouter(best_drouter, &myself); + if (drouter == NULL) + drouter = bdrouter; + } + + /* Set interface state accordingly (5) */ + if (drouter && drouter == &myself) + next_state = OSPF6_INTERFACE_DR; + else if (bdrouter && bdrouter == &myself) + next_state = OSPF6_INTERFACE_BDR; + else + next_state = OSPF6_INTERFACE_DROTHER; + + /* If NBMA, schedule Start for each neighbor having priority of 0 (6) */ + /* XXX */ + + /* If DR or BDR change, invoke AdjOK? for each neighbor (7) */ + /* RFC 2328 section 12.4. Originating LSAs (3) will be handled + accordingly after AdjOK */ + + if (oi->drouter != (drouter ? drouter->router_id : htonl(0)) || + oi->bdrouter != (bdrouter ? bdrouter->router_id : htonl(0)) || + ospf6->gr_info.restart_in_progress) { + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("DR Election on %s: DR: %s BDR: %s", + oi->interface->name, + (drouter ? drouter->name : "0.0.0.0"), + (bdrouter ? bdrouter->name : "0.0.0.0")); + + for (ALL_LIST_ELEMENTS_RO(oi->neighbor_list, node, on)) { + if (on->state < OSPF6_NEIGHBOR_TWOWAY) + continue; + /* Schedule AdjOK. */ + event_add_event(master, adj_ok, on, 0, + &on->thread_adj_ok); + } + } + + oi->drouter = (drouter ? drouter->router_id : htonl(0)); + oi->bdrouter = (bdrouter ? bdrouter->router_id : htonl(0)); + return next_state; +} + +#ifdef __FreeBSD__ + +#include <ifaddrs.h> + +static bool ifmaddr_check(ifindex_t ifindex, struct in6_addr *addr) +{ + struct ifmaddrs *ifmap, *ifma; + struct sockaddr_dl *sdl; + struct sockaddr_in6 *sin6; + bool found = false; + + if (getifmaddrs(&ifmap) != 0) + return false; + + for (ifma = ifmap; ifma; ifma = ifma->ifma_next) { + if (ifma->ifma_name == NULL || ifma->ifma_addr == NULL) + continue; + if (ifma->ifma_name->sa_family != AF_LINK) + continue; + if (ifma->ifma_addr->sa_family != AF_INET6) + continue; + sdl = (struct sockaddr_dl *)ifma->ifma_name; + sin6 = (struct sockaddr_in6 *)ifma->ifma_addr; + if (sdl->sdl_index == ifindex + && memcmp(&sin6->sin6_addr, addr, IPV6_MAX_BYTELEN) == 0) { + found = true; + break; + } + } + + if (ifmap) + freeifmaddrs(ifmap); + + return found; +} + +#endif /* __FreeBSD__ */ + +/* Interface State Machine */ +void interface_up(struct event *thread) +{ + struct ospf6_interface *oi; + struct ospf6 *ospf6; + + oi = (struct ospf6_interface *)EVENT_ARG(thread); + assert(oi && oi->interface); + + if (!oi->type_cfg) + oi->type = ospf6_default_iftype(oi->interface); + + event_cancel(&oi->thread_sso); + + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("Interface Event %s: [InterfaceUp]", + oi->interface->name); + + /* check physical interface is up */ + if (!if_is_operative(oi->interface)) { + zlog_warn("Interface %s is down, can't execute [InterfaceUp]", + oi->interface->name); + return; + } + + /* check interface has a link-local address */ + if (!(ospf6_interface_get_linklocal_address(oi->interface) + || if_is_loopback(oi->interface))) { + zlog_warn( + "Interface %s has no link local address, can't execute [InterfaceUp]", + oi->interface->name); + return; + } + + /* Recompute cost */ + ospf6_interface_recalculate_cost(oi); + + /* if already enabled, do nothing */ + if (oi->state > OSPF6_INTERFACE_DOWN) { + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("Interface %s already enabled", + oi->interface->name); + return; + } + + /* If no area assigned, return */ + if (oi->area == NULL) { + zlog_warn( + "%s: Not scheduling Hello for %s as there is no area assigned yet", + __func__, oi->interface->name); + return; + } + + /* + * RFC 3623 - Section 5 ("Unplanned Outages"): + * "The grace-LSAs are encapsulated in Link State Update Packets + * and sent out to all interfaces, even though the restarted + * router has no adjacencies and no knowledge of previous + * adjacencies". + */ + if (oi->area->ospf6->gr_info.restart_in_progress && + oi->area->ospf6->gr_info.reason == OSPF6_GR_UNKNOWN_RESTART) + ospf6_gr_unplanned_start_interface(oi); + +#ifdef __FreeBSD__ + /* + * There's a delay in FreeBSD between issuing a command to leave a + * multicast group and an actual leave. If we execute "no router ospf6" + * and "router ospf6" fast enough, we can end up in a situation when OS + * performs the leave later than it performs the join and the interface + * remains without a multicast group. We have to do the join only after + * the interface actually left the group. + */ + if (ifmaddr_check(oi->interface->ifindex, &allspfrouters6)) { + zlog_info( + "Interface %s is still in all routers group, rescheduling for SSO", + oi->interface->name); + event_add_timer(master, interface_up, oi, + OSPF6_INTERFACE_SSO_RETRY_INT, &oi->thread_sso); + return; + } +#endif /* __FreeBSD__ */ + + ospf6 = oi->area->ospf6; + + /* Join AllSPFRouters */ + if (ospf6_sso(oi->interface->ifindex, &allspfrouters6, IPV6_JOIN_GROUP, + ospf6->fd) + < 0) { + if (oi->sso_try_cnt++ < OSPF6_INTERFACE_SSO_RETRY_MAX) { + zlog_info( + "Scheduling %s for sso retry, trial count: %d", + oi->interface->name, oi->sso_try_cnt); + event_add_timer(master, interface_up, oi, + OSPF6_INTERFACE_SSO_RETRY_INT, + &oi->thread_sso); + } + return; + } + oi->sso_try_cnt = 0; /* Reset on success */ + + /* Update interface route */ + ospf6_interface_connected_route_update(oi->interface); + + /* Schedule Hello */ + if (!CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE) + && !if_is_loopback(oi->interface)) { + event_add_timer(master, ospf6_hello_send, oi, 0, + &oi->thread_send_hello); + } + + /* decide next interface state */ + if (oi->type == OSPF_IFTYPE_LOOPBACK) { + ospf6_interface_state_change(OSPF6_INTERFACE_LOOPBACK, oi); + } else if (oi->type == OSPF_IFTYPE_POINTOPOINT) { + ospf6_interface_state_change(OSPF6_INTERFACE_POINTTOPOINT, oi); + } else if (oi->priority == 0) + ospf6_interface_state_change(OSPF6_INTERFACE_DROTHER, oi); + else { + ospf6_interface_state_change(OSPF6_INTERFACE_WAITING, oi); + event_add_timer(master, wait_timer, oi, oi->dead_interval, + &oi->thread_wait_timer); + } +} + +void wait_timer(struct event *thread) +{ + struct ospf6_interface *oi; + + oi = (struct ospf6_interface *)EVENT_ARG(thread); + assert(oi && oi->interface); + + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("Interface Event %s: [WaitTimer]", + oi->interface->name); + + if (oi->state == OSPF6_INTERFACE_WAITING) + ospf6_interface_state_change(dr_election(oi), oi); +} + +void backup_seen(struct event *thread) +{ + struct ospf6_interface *oi; + + oi = (struct ospf6_interface *)EVENT_ARG(thread); + assert(oi && oi->interface); + + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("Interface Event %s: [BackupSeen]", + oi->interface->name); + + if (oi->state == OSPF6_INTERFACE_WAITING) + ospf6_interface_state_change(dr_election(oi), oi); +} + +void neighbor_change(struct event *thread) +{ + struct ospf6_interface *oi; + + oi = (struct ospf6_interface *)EVENT_ARG(thread); + assert(oi && oi->interface); + + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("Interface Event %s: [NeighborChange]", + oi->interface->name); + + if (oi->state == OSPF6_INTERFACE_DROTHER + || oi->state == OSPF6_INTERFACE_BDR + || oi->state == OSPF6_INTERFACE_DR) + ospf6_interface_state_change(dr_election(oi), oi); +} + +void interface_down(struct event *thread) +{ + struct ospf6_interface *oi; + struct listnode *node, *nnode; + struct ospf6_neighbor *on; + struct ospf6 *ospf6; + + oi = (struct ospf6_interface *)EVENT_ARG(thread); + assert(oi && oi->interface); + + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("Interface Event %s: [InterfaceDown]", + oi->interface->name); + + /* Stop Hellos */ + EVENT_OFF(oi->thread_send_hello); + + /* Stop trying to set socket options. */ + EVENT_OFF(oi->thread_sso); + + /* Cease the HELPER role for all the neighbours + * of this interface. + */ + if (ospf6_interface_neighbor_count(oi)) { + struct listnode *ln; + struct ospf6_neighbor *nbr = NULL; + + for (ALL_LIST_ELEMENTS_RO(oi->neighbor_list, ln, nbr)) + ospf6_gr_helper_exit(nbr, OSPF6_GR_HELPER_TOPO_CHG); + } + + for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) + ospf6_neighbor_delete(on); + + list_delete_all_node(oi->neighbor_list); + + /* When interface state is reset, also reset information about + * DR election, as it is no longer valid. */ + oi->drouter = oi->prev_drouter = htonl(0); + oi->bdrouter = oi->prev_bdrouter = htonl(0); + + if (oi->area == NULL) + return; + + ospf6 = oi->area->ospf6; + /* Leave AllSPFRouters */ + if (oi->state > OSPF6_INTERFACE_DOWN) + ospf6_sso(oi->interface->ifindex, &allspfrouters6, + IPV6_LEAVE_GROUP, ospf6->fd); + + /* deal with write fifo */ + ospf6_fifo_flush(oi->obuf); + if (oi->on_write_q) { + listnode_delete(ospf6->oi_write_q, oi); + if (list_isempty(ospf6->oi_write_q)) + event_cancel(&ospf6->t_write); + oi->on_write_q = 0; + } + + ospf6_interface_state_change(OSPF6_INTERFACE_DOWN, oi); +} + + +static const char *ospf6_iftype_str(uint8_t iftype) +{ + switch (iftype) { + case OSPF_IFTYPE_LOOPBACK: + return "LOOPBACK"; + case OSPF_IFTYPE_BROADCAST: + return "BROADCAST"; + case OSPF_IFTYPE_POINTOPOINT: + return "POINTOPOINT"; + } + return "UNKNOWN"; +} + +/* show specified interface structure */ +static int ospf6_interface_show(struct vty *vty, struct interface *ifp, + json_object *json_obj, bool use_json) +{ + struct ospf6_interface *oi; + struct connected *c; + struct prefix *p; + struct listnode *i; + char strbuf[PREFIX2STR_BUFFER], drouter[32], bdrouter[32]; + uint8_t default_iftype; + struct timeval res, now; + char duration[32]; + struct ospf6_lsa *lsa, *lsanext; + json_object *json_arr; + json_object *json_addr; + struct json_object *json_auth = NULL; + + default_iftype = ospf6_default_iftype(ifp); + + if (use_json) { + json_object_string_add(json_obj, "status", + (if_is_operative(ifp) ? "up" : "down")); + json_object_string_add(json_obj, "type", + ospf6_iftype_str(default_iftype)); + json_object_int_add(json_obj, "interfaceId", ifp->ifindex); + + if (ifp->info == NULL) + return 0; + + oi = (struct ospf6_interface *)ifp->info; + + if (if_is_operative(ifp) && oi->type != default_iftype) + json_object_string_add(json_obj, "operatingAsType", + ospf6_iftype_str(oi->type)); + + } else { + vty_out(vty, "%s is %s, type %s\n", ifp->name, + (if_is_operative(ifp) ? "up" : "down"), + ospf6_iftype_str(default_iftype)); + vty_out(vty, " Interface ID: %d\n", ifp->ifindex); + + if (ifp->info == NULL) { + vty_out(vty, " OSPF not enabled on this interface\n"); + return 0; + } + oi = (struct ospf6_interface *)ifp->info; + + if (if_is_operative(ifp) && oi->type != default_iftype) + vty_out(vty, " Operating as type %s\n", + ospf6_iftype_str(oi->type)); + } + + if (use_json) { + json_arr = json_object_new_array(); + for (ALL_LIST_ELEMENTS_RO(ifp->connected, i, c)) { + json_addr = json_object_new_object(); + p = c->address; + prefix2str(p, strbuf, sizeof(strbuf)); + switch (p->family) { + case AF_INET: + json_object_string_add(json_addr, "type", + "inet"); + json_object_string_add(json_addr, "address", + strbuf); + json_object_array_add(json_arr, json_addr); + break; + case AF_INET6: + json_object_string_add(json_addr, "type", + "inet6"); + json_object_string_add(json_addr, "address", + strbuf); + json_object_array_add(json_arr, json_addr); + break; + default: + json_object_string_add(json_addr, "type", + "unknown"); + json_object_string_add(json_addr, "address", + strbuf); + json_object_array_add(json_arr, json_addr); + break; + } + } + json_object_object_add(json_obj, "internetAddress", json_arr); + } else { + vty_out(vty, " Internet Address:\n"); + + for (ALL_LIST_ELEMENTS_RO(ifp->connected, i, c)) { + p = c->address; + prefix2str(p, strbuf, sizeof(strbuf)); + switch (p->family) { + case AF_INET: + vty_out(vty, " inet : %pFX\n", p); + break; + case AF_INET6: + vty_out(vty, " inet6: %pFX\n", p); + break; + default: + vty_out(vty, " ??? : %pFX\n", p); + break; + } + } + } + + if (use_json) { + if (oi->area) { + json_object_boolean_true_add(json_obj, + "attachedToArea"); + json_object_int_add(json_obj, "instanceId", + oi->instance_id); + json_object_int_add(json_obj, "interfaceMtu", + oi->ifmtu); + json_object_int_add(json_obj, "autoDetect", ifp->mtu6); + json_object_string_add(json_obj, "mtuMismatchDetection", + oi->mtu_ignore ? "disabled" + : "enabled"); + inet_ntop(AF_INET, &oi->area->area_id, strbuf, + sizeof(strbuf)); + json_object_string_add(json_obj, "areaId", strbuf); + json_object_int_add(json_obj, "cost", oi->cost); + } else + json_object_boolean_false_add(json_obj, + "attachedToArea"); + + } else { + if (oi->area) { + vty_out(vty, + " Instance ID %d, Interface MTU %d (autodetect: %d)\n", + oi->instance_id, oi->ifmtu, ifp->mtu6); + vty_out(vty, " MTU mismatch detection: %s\n", + oi->mtu_ignore ? "disabled" : "enabled"); + inet_ntop(AF_INET, &oi->area->area_id, strbuf, + sizeof(strbuf)); + vty_out(vty, " Area ID %s, Cost %u\n", strbuf, + oi->cost); + } else + vty_out(vty, " Not Attached to Area\n"); + } + + if (use_json) { + json_object_string_add(json_obj, "ospf6InterfaceState", + ospf6_interface_state_str[oi->state]); + json_object_int_add(json_obj, "transmitDelaySec", + oi->transdelay); + json_object_int_add(json_obj, "priority", oi->priority); + json_object_int_add(json_obj, "timerIntervalsConfigHello", + oi->hello_interval); + json_object_int_add(json_obj, "timerIntervalsConfigDead", + oi->dead_interval); + json_object_int_add(json_obj, "timerIntervalsConfigRetransmit", + oi->rxmt_interval); + json_object_boolean_add( + json_obj, "timerPassiveIface", + !!CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE)); + } else { + vty_out(vty, " State %s, Transmit Delay %d sec, Priority %d\n", + ospf6_interface_state_str[oi->state], oi->transdelay, + oi->priority); + vty_out(vty, " Timer intervals configured:\n"); + if (!CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE)) + vty_out(vty, + " Hello %d(%pTHd), Dead %d, Retransmit %d\n", + oi->hello_interval, oi->thread_send_hello, + oi->dead_interval, oi->rxmt_interval); + else + vty_out(vty, " No Hellos (Passive interface)\n"); + } + + inet_ntop(AF_INET, &oi->drouter, drouter, sizeof(drouter)); + inet_ntop(AF_INET, &oi->bdrouter, bdrouter, sizeof(bdrouter)); + if (use_json) { + json_object_string_add(json_obj, "dr", drouter); + json_object_string_add(json_obj, "bdr", bdrouter); + json_object_int_add(json_obj, "numberOfInterfaceScopedLsa", + oi->lsdb->count); + } else { + vty_out(vty, " DR: %s BDR: %s\n", drouter, bdrouter); + vty_out(vty, " Number of I/F scoped LSAs is %u\n", + oi->lsdb->count); + } + + monotime(&now); + + if (use_json) { + timerclear(&res); + if (event_is_scheduled(oi->thread_send_lsupdate)) + timersub(&oi->thread_send_lsupdate->u.sands, &now, + &res); + timerstring(&res, duration, sizeof(duration)); + json_object_int_add(json_obj, "pendingLsaLsUpdateCount", + oi->lsupdate_list->count); + json_object_string_add(json_obj, "pendingLsaLsUpdateTime", + duration); + json_object_string_add( + json_obj, "lsUpdateSendThread", + (event_is_scheduled(oi->thread_send_lsupdate) ? "on" + : "off")); + + json_arr = json_object_new_array(); + for (ALL_LSDB(oi->lsupdate_list, lsa, lsanext)) + json_object_array_add( + json_arr, json_object_new_string(lsa->name)); + json_object_object_add(json_obj, "pendingLsaLsUpdate", + json_arr); + + timerclear(&res); + if (event_is_scheduled(oi->thread_send_lsack)) + timersub(&oi->thread_send_lsack->u.sands, &now, &res); + timerstring(&res, duration, sizeof(duration)); + + json_object_int_add(json_obj, "pendingLsaLsAckCount", + oi->lsack_list->count); + json_object_string_add(json_obj, "pendingLsaLsAckTime", + duration); + json_object_string_add( + json_obj, "lsAckSendThread", + (event_is_scheduled(oi->thread_send_lsack) ? "on" + : "off")); + + json_arr = json_object_new_array(); + for (ALL_LSDB(oi->lsack_list, lsa, lsanext)) + json_object_array_add( + json_arr, json_object_new_string(lsa->name)); + json_object_object_add(json_obj, "pendingLsaLsAck", json_arr); + + if (oi->gr.hello_delay.interval != 0) + json_object_int_add(json_obj, "grHelloDelaySecs", + oi->gr.hello_delay.interval); + } else { + timerclear(&res); + if (event_is_scheduled(oi->thread_send_lsupdate)) + timersub(&oi->thread_send_lsupdate->u.sands, &now, + &res); + timerstring(&res, duration, sizeof(duration)); + vty_out(vty, + " %d Pending LSAs for LSUpdate in Time %s [thread %s]\n", + oi->lsupdate_list->count, duration, + (event_is_scheduled(oi->thread_send_lsupdate) ? "on" + : "off")); + for (ALL_LSDB(oi->lsupdate_list, lsa, lsanext)) + vty_out(vty, " %s\n", lsa->name); + + timerclear(&res); + if (event_is_scheduled(oi->thread_send_lsack)) + timersub(&oi->thread_send_lsack->u.sands, &now, &res); + timerstring(&res, duration, sizeof(duration)); + vty_out(vty, + " %d Pending LSAs for LSAck in Time %s [thread %s]\n", + oi->lsack_list->count, duration, + (event_is_scheduled(oi->thread_send_lsack) ? "on" + : "off")); + for (ALL_LSDB(oi->lsack_list, lsa, lsanext)) + vty_out(vty, " %s\n", lsa->name); + + if (oi->gr.hello_delay.interval != 0) + vty_out(vty, " Graceful Restart hello delay: %us\n", + oi->gr.hello_delay.interval); + } + + /* BFD specific. */ + if (oi->bfd_config.enabled) { + if (use_json) { + struct json_object *json_bfd = json_object_new_object(); + + json_object_int_add( + json_bfd, "detectMultiplier", + oi->bfd_config.detection_multiplier); + json_object_int_add(json_bfd, "rxMinInterval", + oi->bfd_config.min_rx); + json_object_int_add(json_bfd, "txMinInterval", + oi->bfd_config.min_tx); + json_object_object_add(json_obj, "peerBfdInfo", + json_bfd); + } else { + vty_out(vty, + " BFD: Detect Multiplier: %d, Min Rx interval: %d, Min Tx interval: %d\n", + oi->bfd_config.detection_multiplier, + oi->bfd_config.min_rx, oi->bfd_config.min_tx); + } + } + + if (use_json) + json_auth = json_object_new_object(); + if (oi->at_data.flags != 0) { + if (use_json) { + if (CHECK_FLAG(oi->at_data.flags, + OSPF6_AUTH_TRAILER_KEYCHAIN)) { + json_object_string_add(json_auth, "authType", + "keychain"); + json_object_string_add(json_auth, + "keychainName", + oi->at_data.keychain); + } else if (CHECK_FLAG(oi->at_data.flags, + OSPF6_AUTH_TRAILER_MANUAL_KEY)) + json_object_string_add(json_auth, "authType", + "manualkey"); + json_object_int_add(json_auth, "txPktDrop", + oi->at_data.tx_drop); + json_object_int_add(json_auth, "rxPktDrop", + oi->at_data.rx_drop); + } else { + if (CHECK_FLAG(oi->at_data.flags, + OSPF6_AUTH_TRAILER_KEYCHAIN)) + vty_out(vty, + " Authentication Trailer is enabled with key-chain %s\n", + oi->at_data.keychain); + else if (CHECK_FLAG(oi->at_data.flags, + OSPF6_AUTH_TRAILER_MANUAL_KEY)) + vty_out(vty, + " Authentication trailer is enabled with manual key\n"); + vty_out(vty, + " Packet drop Tx %u, Packet drop Rx %u\n", + oi->at_data.tx_drop, oi->at_data.rx_drop); + } + } else { + if (use_json) + json_object_string_add(json_auth, "authType", "NULL"); + else + vty_out(vty, " Authentication Trailer is disabled\n"); + } + + if (use_json) + json_object_object_add(json_obj, "authInfo", json_auth); + + return 0; +} + +/* Find the global address to be used as a forwarding address in NSSA LSA.*/ +struct in6_addr *ospf6_interface_get_global_address(struct interface *ifp) +{ + struct listnode *n; + struct connected *c; + + /* for each connected address */ + for (ALL_LIST_ELEMENTS_RO(ifp->connected, n, c)) { + /* if family not AF_INET6, ignore */ + if (c->address->family != AF_INET6) + continue; + + if (!IN6_IS_ADDR_LINKLOCAL(&c->address->u.prefix6)) + return &c->address->u.prefix6; + } + + return NULL; +} + + +static int show_ospf6_interface_common(struct vty *vty, vrf_id_t vrf_id, + int argc, struct cmd_token **argv, + int idx_ifname, int intf_idx, + int json_idx, bool uj) +{ + + struct vrf *vrf = vrf_lookup_by_id(vrf_id); + struct interface *ifp; + json_object *json; + json_object *json_int; + + if (uj) { + json = json_object_new_object(); + if (argc == json_idx) { + ifp = if_lookup_by_name(argv[idx_ifname]->arg, vrf_id); + json_int = json_object_new_object(); + if (ifp == NULL) { + json_object_string_add(json, "noSuchInterface", + argv[idx_ifname]->arg); + vty_json(vty, json); + json_object_free(json_int); + return CMD_WARNING; + } + ospf6_interface_show(vty, ifp, json_int, uj); + json_object_object_add(json, ifp->name, json_int); + } else { + FOR_ALL_INTERFACES (vrf, ifp) { + json_int = json_object_new_object(); + ospf6_interface_show(vty, ifp, json_int, uj); + json_object_object_add(json, ifp->name, + json_int); + } + } + vty_json(vty, json); + } else { + if (argc == intf_idx) { + ifp = if_lookup_by_name(argv[idx_ifname]->arg, vrf_id); + if (ifp == NULL) { + vty_out(vty, "No such Interface: %s\n", + argv[idx_ifname]->arg); + return CMD_WARNING; + } + ospf6_interface_show(vty, ifp, NULL, uj); + } else { + FOR_ALL_INTERFACES (vrf, ifp) + ospf6_interface_show(vty, ifp, NULL, uj); + } + } + return CMD_SUCCESS; +} + +/* show interface */ +DEFUN(show_ipv6_ospf6_interface, show_ipv6_ospf6_interface_ifname_cmd, + "show ipv6 ospf6 [vrf <NAME|all>] interface [IFNAME] [json]", + SHOW_STR IP6_STR OSPF6_STR VRF_CMD_HELP_STR + "All VRFs\n" INTERFACE_STR IFNAME_STR JSON_STR) +{ + int idx_ifname = 4; + int intf_idx = 5; + int json_idx = 6; + struct listnode *node; + struct ospf6 *ospf6; + const char *vrf_name = NULL; + bool all_vrf = false; + int idx_vrf = 0; + bool uj = use_json(argc, argv); + + OSPF6_FIND_VRF_ARGS(argv, argc, idx_vrf, vrf_name, all_vrf); + if (idx_vrf > 0) { + idx_ifname += 2; + intf_idx += 2; + json_idx += 2; + } + + for (ALL_LIST_ELEMENTS_RO(om6->ospf6, node, ospf6)) { + if (all_vrf || strcmp(ospf6->name, vrf_name) == 0) { + show_ospf6_interface_common(vty, ospf6->vrf_id, argc, + argv, idx_ifname, intf_idx, + json_idx, uj); + + if (!all_vrf) + break; + } + } + + OSPF6_CMD_CHECK_VRF(uj, all_vrf, ospf6); + + return CMD_SUCCESS; +} + +static int ospf6_interface_show_traffic(struct vty *vty, + struct interface *intf_ifp, + int display_once, json_object *json, + bool use_json, vrf_id_t vrf_id) +{ + struct interface *ifp; + struct vrf *vrf = NULL; + struct ospf6_interface *oi = NULL; + json_object *json_interface; + + if (!display_once && !use_json) { + vty_out(vty, "\n"); + vty_out(vty, "%-12s%-17s%-17s%-17s%-17s%-17s\n", "Interface", + " HELLO", " DB-Desc", " LS-Req", " LS-Update", + " LS-Ack"); + vty_out(vty, "%-10s%-18s%-18s%-17s%-17s%-17s\n", "", + " Rx/Tx", " Rx/Tx", " Rx/Tx", " Rx/Tx", + " Rx/Tx"); + vty_out(vty, + "--------------------------------------------------------------------------------------------\n"); + } + + if (intf_ifp == NULL) { + vrf = vrf_lookup_by_id(vrf_id); + FOR_ALL_INTERFACES (vrf, ifp) { + if (ifp->info) + oi = (struct ospf6_interface *)ifp->info; + else + continue; + + if (use_json) { + json_interface = json_object_new_object(); + json_object_int_add(json_interface, "helloRx", + oi->hello_in); + json_object_int_add(json_interface, "helloTx", + oi->hello_out); + json_object_int_add(json_interface, "dbDescRx", + oi->db_desc_in); + json_object_int_add(json_interface, "dbDescTx", + oi->db_desc_out); + json_object_int_add(json_interface, "lsReqRx", + oi->ls_req_in); + json_object_int_add(json_interface, "lsReqTx", + oi->ls_req_out); + json_object_int_add(json_interface, + "lsUpdateRx", + oi->ls_upd_in); + json_object_int_add(json_interface, + "lsUpdateTx", + oi->ls_upd_out); + json_object_int_add(json_interface, "lsAckRx", + oi->ls_ack_in); + json_object_int_add(json_interface, "lsAckTx", + oi->ls_ack_out); + + json_object_object_add(json, + oi->interface->name, + json_interface); + } else + vty_out(vty, + "%-10s %8u/%-8u %7u/%-7u %7u/%-7u %7u/%-7u %7u/%-7u\n", + oi->interface->name, oi->hello_in, + oi->hello_out, oi->db_desc_in, + oi->db_desc_out, oi->ls_req_in, + oi->ls_req_out, oi->ls_upd_in, + oi->ls_upd_out, oi->ls_ack_in, + oi->ls_ack_out); + } + } else { + oi = intf_ifp->info; + if (oi == NULL) + return CMD_WARNING; + + if (use_json) { + json_interface = json_object_new_object(); + json_object_int_add(json_interface, "helloRx", + oi->hello_in); + json_object_int_add(json_interface, "helloTx", + oi->hello_out); + json_object_int_add(json_interface, "dbDescRx", + oi->db_desc_in); + json_object_int_add(json_interface, "dbDescTx", + oi->db_desc_out); + json_object_int_add(json_interface, "lsReqRx", + oi->ls_req_in); + json_object_int_add(json_interface, "lsReqTx", + oi->ls_req_out); + json_object_int_add(json_interface, "lsUpdateRx", + oi->ls_upd_in); + json_object_int_add(json_interface, "lsUpdateTx", + oi->ls_upd_out); + json_object_int_add(json_interface, "lsAckRx", + oi->ls_ack_in); + json_object_int_add(json_interface, "lsAckTx", + oi->ls_ack_out); + + json_object_object_add(json, oi->interface->name, + json_interface); + } else + vty_out(vty, + "%-10s %8u/%-8u %7u/%-7u %7u/%-7u %7u/%-7u %7u/%-7u\n", + oi->interface->name, oi->hello_in, + oi->hello_out, oi->db_desc_in, oi->db_desc_out, + oi->ls_req_in, oi->ls_req_out, oi->ls_upd_in, + oi->ls_upd_out, oi->ls_ack_in, oi->ls_ack_out); + } + + return CMD_SUCCESS; +} + +static int ospf6_interface_show_traffic_common(struct vty *vty, int argc, + struct cmd_token **argv, + vrf_id_t vrf_id, bool uj) +{ + int idx_ifname = 0; + int display_once = 0; + char *intf_name = NULL; + struct interface *ifp = NULL; + json_object *json = NULL; + + if (uj) + json = json_object_new_object(); + + if (argv_find(argv, argc, "IFNAME", &idx_ifname)) { + intf_name = argv[idx_ifname]->arg; + ifp = if_lookup_by_name(intf_name, vrf_id); + if (uj) { + if (ifp == NULL) { + json_object_string_add(json, "status", + "No Such Interface"); + json_object_string_add(json, "interface", + intf_name); + vty_json(vty, json); + return CMD_WARNING; + } + if (ifp->info == NULL) { + json_object_string_add( + json, "status", + "OSPF not enabled on this interface"); + json_object_string_add(json, "interface", + intf_name); + vty_json(vty, json); + return 0; + } + } else { + if (ifp == NULL) { + vty_out(vty, "No such Interface: %s\n", + intf_name); + return CMD_WARNING; + } + if (ifp->info == NULL) { + vty_out(vty, + " OSPF not enabled on this interface %s\n", + intf_name); + return 0; + } + } + } + + ospf6_interface_show_traffic(vty, ifp, display_once, json, uj, vrf_id); + + if (uj) + vty_json(vty, json); + + return CMD_SUCCESS; +} + +/* show interface */ +DEFUN(show_ipv6_ospf6_interface_traffic, show_ipv6_ospf6_interface_traffic_cmd, + "show ipv6 ospf6 [vrf <NAME|all>] interface traffic [IFNAME] [json]", + SHOW_STR IP6_STR OSPF6_STR VRF_CMD_HELP_STR + "All VRFs\n" INTERFACE_STR + "Protocol Packet counters\n" IFNAME_STR JSON_STR) +{ + struct ospf6 *ospf6; + struct listnode *node; + const char *vrf_name = NULL; + bool all_vrf = false; + int idx_vrf = 0; + bool uj = use_json(argc, argv); + + OSPF6_FIND_VRF_ARGS(argv, argc, idx_vrf, vrf_name, all_vrf); + + for (ALL_LIST_ELEMENTS_RO(om6->ospf6, node, ospf6)) { + if (all_vrf || strcmp(ospf6->name, vrf_name) == 0) { + ospf6_interface_show_traffic_common(vty, argc, argv, + ospf6->vrf_id, uj); + + if (!all_vrf) + break; + } + } + + OSPF6_CMD_CHECK_VRF(uj, all_vrf, ospf6); + + return CMD_SUCCESS; +} + + +DEFUN(show_ipv6_ospf6_interface_ifname_prefix, + show_ipv6_ospf6_interface_ifname_prefix_cmd, + "show ipv6 ospf6 [vrf <NAME|all>] interface IFNAME prefix\ + [<\ + detail\ + |<X:X::X:X|X:X::X:X/M> [<match|detail>]\ + >] [json]", + SHOW_STR IP6_STR OSPF6_STR VRF_CMD_HELP_STR + "All VRFs\n" INTERFACE_STR IFNAME_STR + "Display connected prefixes to advertise\n" + "Display details of the prefixes\n" OSPF6_ROUTE_ADDRESS_STR + OSPF6_ROUTE_PREFIX_STR OSPF6_ROUTE_MATCH_STR + "Display details of the prefixes\n" JSON_STR) +{ + int idx_ifname = 4; + int idx_prefix = 6; + struct ospf6_interface *oi; + bool uj = use_json(argc, argv); + + struct ospf6 *ospf6; + struct listnode *node; + struct interface *ifp; + const char *vrf_name = NULL; + bool all_vrf = false; + int idx_vrf = 0; + + OSPF6_FIND_VRF_ARGS(argv, argc, idx_vrf, vrf_name, all_vrf); + if (idx_vrf > 0) { + idx_ifname += 2; + idx_prefix += 2; + } + + for (ALL_LIST_ELEMENTS_RO(om6->ospf6, node, ospf6)) { + if (all_vrf || strcmp(ospf6->name, vrf_name) == 0) { + ifp = if_lookup_by_name(argv[idx_ifname]->arg, + ospf6->vrf_id); + if (ifp == NULL) { + vty_out(vty, "No such Interface: %s\n", + argv[idx_ifname]->arg); + return CMD_WARNING; + } + + oi = ifp->info; + if (oi == NULL + || CHECK_FLAG(oi->flag, OSPF6_INTERFACE_DISABLE)) { + vty_out(vty, + "Interface %s not attached to area\n", + argv[idx_ifname]->arg); + return CMD_WARNING; + } + + ospf6_route_table_show(vty, idx_prefix, argc, argv, + oi->route_connected, uj); + + if (!all_vrf) + break; + } + } + + OSPF6_CMD_CHECK_VRF(uj, all_vrf, ospf6); + + return CMD_SUCCESS; +} + +DEFUN(show_ipv6_ospf6_interface_prefix, show_ipv6_ospf6_interface_prefix_cmd, + "show ipv6 ospf6 [vrf <NAME|all>] interface prefix\ + [<\ + detail\ + |<X:X::X:X|X:X::X:X/M> [<match|detail>]\ + >] [json]", + SHOW_STR IP6_STR OSPF6_STR VRF_CMD_HELP_STR + "All VRFs\n" INTERFACE_STR + "Display connected prefixes to advertise\n" + "Display details of the prefixes\n" OSPF6_ROUTE_ADDRESS_STR + OSPF6_ROUTE_PREFIX_STR OSPF6_ROUTE_MATCH_STR + "Display details of the prefixes\n" JSON_STR) +{ + struct vrf *vrf = NULL; + int idx_prefix = 5; + struct ospf6_interface *oi; + struct interface *ifp; + bool uj = use_json(argc, argv); + struct listnode *node; + struct ospf6 *ospf6; + const char *vrf_name = NULL; + bool all_vrf = false; + int idx_vrf = 0; + + OSPF6_FIND_VRF_ARGS(argv, argc, idx_vrf, vrf_name, all_vrf); + if (idx_vrf > 0) + idx_prefix += 2; + + for (ALL_LIST_ELEMENTS_RO(om6->ospf6, node, ospf6)) { + if (all_vrf || strcmp(ospf6->name, vrf_name) == 0) { + vrf = vrf_lookup_by_id(ospf6->vrf_id); + FOR_ALL_INTERFACES (vrf, ifp) { + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL + || CHECK_FLAG(oi->flag, + OSPF6_INTERFACE_DISABLE)) + continue; + + ospf6_route_table_show(vty, idx_prefix, argc, + argv, + oi->route_connected, uj); + } + if (!all_vrf) + break; + } + } + + OSPF6_CMD_CHECK_VRF(uj, all_vrf, ospf6); + + return CMD_SUCCESS; +} + +void ospf6_interface_start(struct ospf6_interface *oi) +{ + struct ospf6 *ospf6; + struct ospf6_area *oa; + + if (oi->area_id_format == OSPF6_AREA_FMT_UNSET) + return; + + if (oi->area) { + /* Recompute cost */ + ospf6_interface_recalculate_cost(oi); + return; + } + + ospf6 = oi->interface->vrf->info; + if (!ospf6) + return; + + oa = ospf6_area_lookup(oi->area_id, ospf6); + if (oa == NULL) + oa = ospf6_area_create(oi->area_id, ospf6, oi->area_id_format); + + /* attach interface to area */ + listnode_add(oa->if_list, oi); + oi->area = oa; + + SET_FLAG(oa->flag, OSPF6_AREA_ENABLE); + + /* start up */ + ospf6_interface_enable(oi); + + /* If the router is ABR, originate summary routes */ + if (ospf6_check_and_set_router_abr(ospf6)) { + ospf6_abr_enable_area(oa); + ospf6_schedule_abr_task(ospf6); + } +} + +void ospf6_interface_stop(struct ospf6_interface *oi) +{ + struct ospf6_area *oa; + + oa = oi->area; + if (!oa) + return; + + ospf6_interface_disable(oi); + + listnode_delete(oa->if_list, oi); + oi->area = NULL; + + if (oa->if_list->count == 0) { + UNSET_FLAG(oa->flag, OSPF6_AREA_ENABLE); + ospf6_abr_disable_area(oa); + } +} + +/* interface variable set command */ +DEFUN (ipv6_ospf6_area, + ipv6_ospf6_area_cmd, + "ipv6 ospf6 area <A.B.C.D|(0-4294967295)>", + IP6_STR + OSPF6_STR + "Specify the OSPF6 area ID\n" + "OSPF6 area ID in IPv4 address notation\n" + "OSPF6 area ID in decimal notation\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + int idx_ipv4 = 3; + uint32_t area_id; + int format; + + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + if (oi->area) { + vty_out(vty, "%s already attached to Area %s\n", + oi->interface->name, oi->area->name); + return CMD_SUCCESS; + } + + if (str2area_id(argv[idx_ipv4]->arg, &area_id, &format)) { + vty_out(vty, "Malformed Area-ID: %s\n", argv[idx_ipv4]->arg); + return CMD_WARNING_CONFIG_FAILED; + } + + oi->area_id = area_id; + oi->area_id_format = format; + + ospf6_interface_start(oi); + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_area, + no_ipv6_ospf6_area_cmd, + "no ipv6 ospf6 area [<A.B.C.D|(0-4294967295)>]", + NO_STR + IP6_STR + OSPF6_STR + "Specify the OSPF6 area ID\n" + "OSPF6 area ID in IPv4 address notation\n" + "OSPF6 area ID in decimal notation\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + ospf6_interface_stop(oi); + + oi->area_id = 0; + oi->area_id_format = OSPF6_AREA_FMT_UNSET; + + return CMD_SUCCESS; +} + +DEFUN (ipv6_ospf6_ifmtu, + ipv6_ospf6_ifmtu_cmd, + "ipv6 ospf6 ifmtu (1-65535)", + IP6_STR + OSPF6_STR + "Interface MTU\n" + "OSPFv3 Interface MTU\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + unsigned int ifmtu, iobuflen; + struct listnode *node, *nnode; + struct ospf6_neighbor *on; + + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + ifmtu = strtol(argv[idx_number]->arg, NULL, 10); + + if (oi->c_ifmtu == ifmtu) + return CMD_SUCCESS; + + if (ifp->mtu6 != 0 && ifp->mtu6 < ifmtu) { + vty_out(vty, + "%s's ospf6 ifmtu cannot go beyond physical mtu (%d)\n", + ifp->name, ifp->mtu6); + return CMD_WARNING_CONFIG_FAILED; + } + + if (oi->ifmtu < ifmtu) { + iobuflen = ospf6_iobuf_size(ifmtu); + if (iobuflen < ifmtu) { + vty_out(vty, + "%s's ifmtu is adjusted to I/O buffer size (%d).\n", + ifp->name, iobuflen); + oi->ifmtu = oi->c_ifmtu = iobuflen; + } else + oi->ifmtu = oi->c_ifmtu = ifmtu; + } else + oi->ifmtu = oi->c_ifmtu = ifmtu; + + /* re-establish adjacencies */ + for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) { + EVENT_OFF(on->inactivity_timer); + event_add_event(master, inactivity_timer, on, 0, NULL); + } + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_ifmtu, + no_ipv6_ospf6_ifmtu_cmd, + "no ipv6 ospf6 ifmtu [(1-65535)]", + NO_STR + IP6_STR + OSPF6_STR + "Interface MTU\n" + "OSPFv3 Interface MTU\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + unsigned int iobuflen; + struct listnode *node, *nnode; + struct ospf6_neighbor *on; + + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + if (oi->ifmtu < ifp->mtu) { + iobuflen = ospf6_iobuf_size(ifp->mtu); + if (iobuflen < ifp->mtu) { + vty_out(vty, + "%s's ifmtu is adjusted to I/O buffer size (%d).\n", + ifp->name, iobuflen); + oi->ifmtu = iobuflen; + } else + oi->ifmtu = ifp->mtu; + } else + oi->ifmtu = ifp->mtu; + + oi->c_ifmtu = 0; + + /* re-establish adjacencies */ + for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) { + EVENT_OFF(on->inactivity_timer); + event_add_event(master, inactivity_timer, on, 0, NULL); + } + + return CMD_SUCCESS; +} + +DEFUN (ipv6_ospf6_cost, + ipv6_ospf6_cost_cmd, + "ipv6 ospf6 cost (1-65535)", + IP6_STR + OSPF6_STR + "Interface cost\n" + "Outgoing metric of this interface\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + unsigned long int lcost; + + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + lcost = strtol(argv[idx_number]->arg, NULL, 10); + + if (lcost > UINT32_MAX) { + vty_out(vty, "Cost %ld is out of range\n", lcost); + return CMD_WARNING_CONFIG_FAILED; + } + + SET_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST); + if (oi->cost == lcost) + return CMD_SUCCESS; + + oi->cost = lcost; + ospf6_interface_force_recalculate_cost(oi); + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_cost, + no_ipv6_ospf6_cost_cmd, + "no ipv6 ospf6 cost [(1-65535)]", + NO_STR + IP6_STR + OSPF6_STR + "Calculate interface cost from bandwidth\n" + "Outgoing metric of this interface\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + UNSET_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST); + + ospf6_interface_recalculate_cost(oi); + + return CMD_SUCCESS; +} + +DEFUN (auto_cost_reference_bandwidth, + auto_cost_reference_bandwidth_cmd, + "auto-cost reference-bandwidth (1-4294967)", + "Calculate OSPF interface cost according to bandwidth\n" + "Use reference bandwidth method to assign OSPF cost\n" + "The reference bandwidth in terms of Mbits per second\n") +{ + VTY_DECLVAR_CONTEXT(ospf6, o); + int idx_number = 2; + struct ospf6_area *oa; + struct ospf6_interface *oi; + struct listnode *i, *j; + uint32_t refbw; + + refbw = strtol(argv[idx_number]->arg, NULL, 10); + if (refbw < 1 || refbw > 4294967) { + vty_out(vty, "reference-bandwidth value is invalid\n"); + return CMD_WARNING_CONFIG_FAILED; + } + + /* If reference bandwidth is changed. */ + if ((refbw) == o->ref_bandwidth) + return CMD_SUCCESS; + + o->ref_bandwidth = refbw; + for (ALL_LIST_ELEMENTS_RO(o->area_list, i, oa)) + for (ALL_LIST_ELEMENTS_RO(oa->if_list, j, oi)) + ospf6_interface_recalculate_cost(oi); + + return CMD_SUCCESS; +} + +DEFUN (no_auto_cost_reference_bandwidth, + no_auto_cost_reference_bandwidth_cmd, + "no auto-cost reference-bandwidth [(1-4294967)]", + NO_STR + "Calculate OSPF interface cost according to bandwidth\n" + "Use reference bandwidth method to assign OSPF cost\n" + "The reference bandwidth in terms of Mbits per second\n") +{ + VTY_DECLVAR_CONTEXT(ospf6, o); + struct ospf6_area *oa; + struct ospf6_interface *oi; + struct listnode *i, *j; + + if (o->ref_bandwidth == OSPF6_REFERENCE_BANDWIDTH) + return CMD_SUCCESS; + + o->ref_bandwidth = OSPF6_REFERENCE_BANDWIDTH; + for (ALL_LIST_ELEMENTS_RO(o->area_list, i, oa)) + for (ALL_LIST_ELEMENTS_RO(oa->if_list, j, oi)) + ospf6_interface_recalculate_cost(oi); + + return CMD_SUCCESS; +} + + +DEFUN (ospf6_write_multiplier, + ospf6_write_multiplier_cmd, + "write-multiplier (1-100)", + "Write multiplier\n" + "Maximum number of interface serviced per write\n") +{ + VTY_DECLVAR_CONTEXT(ospf6, o); + uint32_t write_oi_count; + + write_oi_count = strtol(argv[1]->arg, NULL, 10); + if (write_oi_count < 1 || write_oi_count > 100) { + vty_out(vty, "write-multiplier value is invalid\n"); + return CMD_WARNING_CONFIG_FAILED; + } + + o->write_oi_count = write_oi_count; + return CMD_SUCCESS; +} + +DEFUN (no_ospf6_write_multiplier, + no_ospf6_write_multiplier_cmd, + "no write-multiplier (1-100)", + NO_STR + "Write multiplier\n" + "Maximum number of interface serviced per write\n") +{ + VTY_DECLVAR_CONTEXT(ospf6, o); + + o->write_oi_count = OSPF6_WRITE_INTERFACE_COUNT_DEFAULT; + return CMD_SUCCESS; +} + +DEFUN (ipv6_ospf6_hellointerval, + ipv6_ospf6_hellointerval_cmd, + "ipv6 ospf6 hello-interval (1-65535)", + IP6_STR + OSPF6_STR + "Time between HELLO packets\n" + SECONDS_STR) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->hello_interval = strmatch(argv[0]->text, "no") + ? OSPF_HELLO_INTERVAL_DEFAULT + : strtoul(argv[idx_number]->arg, NULL, 10); + + /* + * If the thread is scheduled, send the new hello now. + */ + if (event_is_scheduled(oi->thread_send_hello)) { + EVENT_OFF(oi->thread_send_hello); + + event_add_timer(master, ospf6_hello_send, oi, 0, + &oi->thread_send_hello); + } + return CMD_SUCCESS; +} + +ALIAS (ipv6_ospf6_hellointerval, + no_ipv6_ospf6_hellointerval_cmd, + "no ipv6 ospf6 hello-interval [(1-65535)]", + NO_STR + IP6_STR + OSPF6_STR + "Time between HELLO packets\n" + SECONDS_STR) + +/* interface variable set command */ +DEFUN (ipv6_ospf6_deadinterval, + ipv6_ospf6_deadinterval_cmd, + "ipv6 ospf6 dead-interval (1-65535)", + IP6_STR + OSPF6_STR + "Interval time after which a neighbor is declared down\n" + SECONDS_STR) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->dead_interval = strmatch(argv[0]->arg, "no") + ? OSPF_ROUTER_DEAD_INTERVAL_DEFAULT + : strtoul(argv[idx_number]->arg, NULL, 10); + return CMD_SUCCESS; +} + +ALIAS (ipv6_ospf6_deadinterval, + no_ipv6_ospf6_deadinterval_cmd, + "no ipv6 ospf6 dead-interval [(1-65535)]", + NO_STR + IP6_STR + OSPF6_STR + "Interval time after which a neighbor is declared down\n" + SECONDS_STR) + +DEFPY(ipv6_ospf6_gr_hdelay, ipv6_ospf6_gr_hdelay_cmd, + "ipv6 ospf6 graceful-restart hello-delay (1-1800)", + IP6_STR + OSPF6_STR + "Graceful Restart parameters\n" + "Delay the sending of the first hello packets.\n" + "Delay in seconds\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + + oi = ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + + /* Note: new or updated value won't affect ongoing graceful restart. */ + oi->gr.hello_delay.interval = hello_delay; + + return CMD_SUCCESS; +} + +DEFPY(no_ipv6_ospf6_gr_hdelay, no_ipv6_ospf6_gr_hdelay_cmd, + "no ipv6 ospf6 graceful-restart hello-delay [(1-1800)]", + NO_STR + IP6_STR + OSPF6_STR + "Graceful Restart parameters\n" + "Delay the sending of the first hello packets.\n" + "Delay in seconds\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + + oi = ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + + oi->gr.hello_delay.interval = OSPF_HELLO_DELAY_DEFAULT; + oi->gr.hello_delay.elapsed_seconds = 0; + EVENT_OFF(oi->gr.hello_delay.t_grace_send); + + return CMD_SUCCESS; +} + +/* interface variable set command */ +DEFUN (ipv6_ospf6_transmitdelay, + ipv6_ospf6_transmitdelay_cmd, + "ipv6 ospf6 transmit-delay (1-3600)", + IP6_STR + OSPF6_STR + "Link state transmit delay\n" + SECONDS_STR) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->transdelay = strmatch(argv[0]->text, "no") + ? OSPF6_INTERFACE_TRANSDELAY + : strtoul(argv[idx_number]->arg, NULL, 10); + return CMD_SUCCESS; +} + +ALIAS (ipv6_ospf6_transmitdelay, + no_ipv6_ospf6_transmitdelay_cmd, + "no ipv6 ospf6 transmit-delay [(1-3600)]", + NO_STR + IP6_STR + OSPF6_STR + "Link state transmit delay\n" + SECONDS_STR) + +/* interface variable set command */ +DEFUN (ipv6_ospf6_retransmitinterval, + ipv6_ospf6_retransmitinterval_cmd, + "ipv6 ospf6 retransmit-interval (1-65535)", + IP6_STR + OSPF6_STR + "Time between retransmitting lost link state advertisements\n" + SECONDS_STR) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->rxmt_interval = strmatch(argv[0]->text, "no") + ? OSPF_RETRANSMIT_INTERVAL_DEFAULT + : strtoul(argv[idx_number]->arg, NULL, 10); + return CMD_SUCCESS; +} + +ALIAS (ipv6_ospf6_retransmitinterval, + no_ipv6_ospf6_retransmitinterval_cmd, + "no ipv6 ospf6 retransmit-interval [(1-65535)]", + NO_STR + IP6_STR + OSPF6_STR + "Time between retransmitting lost link state advertisements\n" + SECONDS_STR) + +/* interface variable set command */ +DEFUN (ipv6_ospf6_priority, + ipv6_ospf6_priority_cmd, + "ipv6 ospf6 priority (0-255)", + IP6_STR + OSPF6_STR + "Router priority\n" + "Priority value\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->priority = strmatch(argv[0]->text, "no") + ? OSPF6_INTERFACE_PRIORITY + : strtoul(argv[idx_number]->arg, NULL, 10); + + if (oi->area + && (oi->state == OSPF6_INTERFACE_DROTHER + || oi->state == OSPF6_INTERFACE_BDR + || oi->state == OSPF6_INTERFACE_DR)) { + if (ospf6_interface_state_change(dr_election(oi), oi) == -1) + OSPF6_LINK_LSA_SCHEDULE(oi); + } + + return CMD_SUCCESS; +} + +ALIAS (ipv6_ospf6_priority, + no_ipv6_ospf6_priority_cmd, + "no ipv6 ospf6 priority [(0-255)]", + NO_STR + IP6_STR + OSPF6_STR + "Router priority\n" + "Priority value\n") + +DEFUN (ipv6_ospf6_instance, + ipv6_ospf6_instance_cmd, + "ipv6 ospf6 instance-id (0-255)", + IP6_STR + OSPF6_STR + "Instance ID for this interface\n" + "Instance ID value\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_number = 3; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->instance_id = strmatch(argv[0]->text, "no") + ? OSPF6_INTERFACE_INSTANCE_ID + : strtoul(argv[idx_number]->arg, NULL, 10); + return CMD_SUCCESS; +} + +ALIAS (ipv6_ospf6_instance, + no_ipv6_ospf6_instance_cmd, + "no ipv6 ospf6 instance-id [(0-255)]", + NO_STR + IP6_STR + OSPF6_STR + "Instance ID for this interface\n" + "Instance ID value\n") + +DEFUN (ipv6_ospf6_passive, + ipv6_ospf6_passive_cmd, + "ipv6 ospf6 passive", + IP6_STR + OSPF6_STR + "Passive interface; no adjacency will be formed on this interface\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + struct listnode *node, *nnode; + struct ospf6_neighbor *on; + + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + SET_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE); + EVENT_OFF(oi->thread_send_hello); + EVENT_OFF(oi->thread_sso); + + for (ALL_LIST_ELEMENTS(oi->neighbor_list, node, nnode, on)) { + EVENT_OFF(on->inactivity_timer); + event_add_event(master, inactivity_timer, on, 0, NULL); + } + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_passive, + no_ipv6_ospf6_passive_cmd, + "no ipv6 ospf6 passive", + NO_STR + IP6_STR + OSPF6_STR + "passive interface: No Adjacency will be formed on this I/F\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + UNSET_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE); + EVENT_OFF(oi->thread_send_hello); + EVENT_OFF(oi->thread_sso); + + /* don't send hellos over loopback interface */ + if (!if_is_loopback(oi->interface)) + event_add_timer(master, ospf6_hello_send, oi, 0, + &oi->thread_send_hello); + + return CMD_SUCCESS; +} + +DEFUN (ipv6_ospf6_mtu_ignore, + ipv6_ospf6_mtu_ignore_cmd, + "ipv6 ospf6 mtu-ignore", + IP6_STR + OSPF6_STR + "Disable MTU mismatch detection on this interface\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->mtu_ignore = 1; + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_mtu_ignore, + no_ipv6_ospf6_mtu_ignore_cmd, + "no ipv6 ospf6 mtu-ignore", + NO_STR + IP6_STR + OSPF6_STR + "Disable MTU mismatch detection on this interface\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + oi->mtu_ignore = 0; + + return CMD_SUCCESS; +} + +DEFUN (ipv6_ospf6_advertise_prefix_list, + ipv6_ospf6_advertise_prefix_list_cmd, + "ipv6 ospf6 advertise prefix-list WORD", + IP6_STR + OSPF6_STR + "Advertising options\n" + "Filter prefix using prefix-list\n" + "Prefix list name\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_word = 4; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + if (oi->plist_name) + XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name); + oi->plist_name = XSTRDUP(MTYPE_CFG_PLIST_NAME, argv[idx_word]->arg); + + ospf6_interface_connected_route_update(oi->interface); + + if (oi->area) { + OSPF6_LINK_LSA_SCHEDULE(oi); + if (oi->state == OSPF6_INTERFACE_DR) { + OSPF6_NETWORK_LSA_SCHEDULE(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi); + } + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area); + } + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_advertise_prefix_list, + no_ipv6_ospf6_advertise_prefix_list_cmd, + "no ipv6 ospf6 advertise prefix-list [WORD]", + NO_STR + IP6_STR + OSPF6_STR + "Advertising options\n" + "Filter prefix using prefix-list\n" + "Prefix list name\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + assert(oi); + + if (oi->plist_name) + XFREE(MTYPE_CFG_PLIST_NAME, oi->plist_name); + + ospf6_interface_connected_route_update(oi->interface); + + if (oi->area) { + OSPF6_LINK_LSA_SCHEDULE(oi); + if (oi->state == OSPF6_INTERFACE_DR) { + OSPF6_NETWORK_LSA_SCHEDULE(oi); + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_TRANSIT(oi); + } + OSPF6_INTRA_PREFIX_LSA_SCHEDULE_STUB(oi->area); + } + + return CMD_SUCCESS; +} + +DEFUN (ipv6_ospf6_network, + ipv6_ospf6_network_cmd, + "ipv6 ospf6 network <broadcast|point-to-point>", + IP6_STR + OSPF6_STR + "Network type\n" + "Specify OSPF6 broadcast network\n" + "Specify OSPF6 point-to-point network\n" + ) +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int idx_network = 3; + struct ospf6_interface *oi; + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) { + oi = ospf6_interface_create(ifp); + } + assert(oi); + + oi->type_cfg = true; + + if (strncmp(argv[idx_network]->arg, "b", 1) == 0) { + if (oi->type == OSPF_IFTYPE_BROADCAST) + return CMD_SUCCESS; + + oi->type = OSPF_IFTYPE_BROADCAST; + } else if (strncmp(argv[idx_network]->arg, "point-to-p", 10) == 0) { + if (oi->type == OSPF_IFTYPE_POINTOPOINT) { + return CMD_SUCCESS; + } + oi->type = OSPF_IFTYPE_POINTOPOINT; + } + + /* Reset the interface */ + event_execute(master, interface_down, oi, 0, NULL); + event_execute(master, interface_up, oi, 0, NULL); + + return CMD_SUCCESS; +} + +DEFUN (no_ipv6_ospf6_network, + no_ipv6_ospf6_network_cmd, + "no ipv6 ospf6 network [<broadcast|point-to-point>]", + NO_STR + IP6_STR + OSPF6_STR + "Set default network type\n" + "Specify OSPF6 broadcast network\n" + "Specify OSPF6 point-to-point network\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + int type; + + assert(ifp); + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) { + return CMD_SUCCESS; + } + + oi->type_cfg = false; + + type = ospf6_default_iftype(ifp); + if (oi->type == type) { + return CMD_SUCCESS; + } + oi->type = type; + + /* Reset the interface */ + event_execute(master, interface_down, oi, 0, NULL); + event_execute(master, interface_up, oi, 0, NULL); + + return CMD_SUCCESS; +} + +static int config_write_ospf6_interface(struct vty *vty, struct vrf *vrf) +{ + struct ospf6_interface *oi; + struct interface *ifp; + char buf[INET_ADDRSTRLEN]; + + FOR_ALL_INTERFACES (vrf, ifp) { + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + continue; + + if_vty_config_start(vty, ifp); + + if (ifp->desc) + vty_out(vty, " description %s\n", ifp->desc); + if (oi->area_id_format != OSPF6_AREA_FMT_UNSET) { + area_id2str(buf, sizeof(buf), oi->area_id, + oi->area_id_format); + vty_out(vty, " ipv6 ospf6 area %s\n", buf); + } + if (oi->c_ifmtu) + vty_out(vty, " ipv6 ospf6 ifmtu %d\n", oi->c_ifmtu); + + if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_NOAUTOCOST)) + vty_out(vty, " ipv6 ospf6 cost %d\n", oi->cost); + + if (oi->hello_interval != OSPF6_INTERFACE_HELLO_INTERVAL) + vty_out(vty, " ipv6 ospf6 hello-interval %d\n", + oi->hello_interval); + + if (oi->dead_interval != OSPF6_INTERFACE_DEAD_INTERVAL) + vty_out(vty, " ipv6 ospf6 dead-interval %d\n", + oi->dead_interval); + + if (oi->rxmt_interval != OSPF6_INTERFACE_RXMT_INTERVAL) + vty_out(vty, " ipv6 ospf6 retransmit-interval %d\n", + oi->rxmt_interval); + + if (oi->priority != OSPF6_INTERFACE_PRIORITY) + vty_out(vty, " ipv6 ospf6 priority %d\n", oi->priority); + + if (oi->transdelay != OSPF6_INTERFACE_TRANSDELAY) + vty_out(vty, " ipv6 ospf6 transmit-delay %d\n", + oi->transdelay); + + if (oi->instance_id != OSPF6_INTERFACE_INSTANCE_ID) + vty_out(vty, " ipv6 ospf6 instance-id %d\n", + oi->instance_id); + + if (oi->plist_name) + vty_out(vty, " ipv6 ospf6 advertise prefix-list %s\n", + oi->plist_name); + + if (CHECK_FLAG(oi->flag, OSPF6_INTERFACE_PASSIVE)) + vty_out(vty, " ipv6 ospf6 passive\n"); + + if (oi->mtu_ignore) + vty_out(vty, " ipv6 ospf6 mtu-ignore\n"); + + if (oi->type_cfg && oi->type == OSPF_IFTYPE_POINTOPOINT) + vty_out(vty, " ipv6 ospf6 network point-to-point\n"); + else if (oi->type_cfg && oi->type == OSPF_IFTYPE_BROADCAST) + vty_out(vty, " ipv6 ospf6 network broadcast\n"); + + if (oi->gr.hello_delay.interval != OSPF_HELLO_DELAY_DEFAULT) + vty_out(vty, + " ipv6 ospf6 graceful-restart hello-delay %u\n", + oi->gr.hello_delay.interval); + + ospf6_bfd_write_config(vty, oi); + + ospf6_auth_write_config(vty, &oi->at_data); + if_vty_config_end(vty); + } + return 0; +} + +/* Configuration write function for ospfd. */ +static int config_write_interface(struct vty *vty) +{ + int write = 0; + struct vrf *vrf = NULL; + + /* Display all VRF aware OSPF interface configuration */ + RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { + write += config_write_ospf6_interface(vty, vrf); + } + + return write; +} + +static int ospf6_ifp_create(struct interface *ifp) +{ + if (IS_OSPF6_DEBUG_ZEBRA(RECV)) + zlog_debug("Zebra Interface add: %s index %d mtu %d", ifp->name, + ifp->ifindex, ifp->mtu6); + + if (ifp->info) + ospf6_interface_start(ifp->info); + + return 0; +} + +static int ospf6_ifp_up(struct interface *ifp) +{ + if (IS_OSPF6_DEBUG_ZEBRA(RECV)) + zlog_debug( + "Zebra Interface state change: %s index %d flags %llx metric %d mtu %d bandwidth %d", + ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, + ifp->metric, ifp->mtu6, ifp->bandwidth); + + ospf6_interface_state_update(ifp); + + return 0; +} + +static int ospf6_ifp_down(struct interface *ifp) +{ + if (IS_OSPF6_DEBUG_ZEBRA(RECV)) + zlog_debug( + "Zebra Interface state change: %s index %d flags %llx metric %d mtu %d bandwidth %d", + ifp->name, ifp->ifindex, (unsigned long long)ifp->flags, + ifp->metric, ifp->mtu6, ifp->bandwidth); + + ospf6_interface_state_update(ifp); + + return 0; +} + +static int ospf6_ifp_destroy(struct interface *ifp) +{ + if (if_is_up(ifp)) + zlog_warn("Zebra: got delete of %s, but interface is still up", + ifp->name); + + if (IS_OSPF6_DEBUG_ZEBRA(RECV)) + zlog_debug("Zebra Interface delete: %s index %d mtu %d", + ifp->name, ifp->ifindex, ifp->mtu6); + + if (ifp->info) + ospf6_interface_stop(ifp->info); + + return 0; +} + +void ospf6_interface_init(void) +{ + /* Install interface node. */ + if_cmd_init(config_write_interface); + if_zapi_callbacks(ospf6_ifp_create, ospf6_ifp_up, + ospf6_ifp_down, ospf6_ifp_destroy); + + install_element(VIEW_NODE, &show_ipv6_ospf6_interface_prefix_cmd); + install_element(VIEW_NODE, &show_ipv6_ospf6_interface_ifname_cmd); + install_element(VIEW_NODE, + &show_ipv6_ospf6_interface_ifname_prefix_cmd); + install_element(VIEW_NODE, &show_ipv6_ospf6_interface_traffic_cmd); + + install_element(INTERFACE_NODE, &ipv6_ospf6_area_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_area_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_cost_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_cost_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_ifmtu_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_ifmtu_cmd); + + install_element(INTERFACE_NODE, &ipv6_ospf6_deadinterval_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_hellointerval_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_gr_hdelay_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_priority_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_retransmitinterval_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_transmitdelay_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_instance_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_deadinterval_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_hellointerval_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_gr_hdelay_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_priority_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_retransmitinterval_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_transmitdelay_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_instance_cmd); + + install_element(INTERFACE_NODE, &ipv6_ospf6_passive_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_passive_cmd); + + install_element(INTERFACE_NODE, &ipv6_ospf6_mtu_ignore_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_mtu_ignore_cmd); + + install_element(INTERFACE_NODE, &ipv6_ospf6_advertise_prefix_list_cmd); + install_element(INTERFACE_NODE, + &no_ipv6_ospf6_advertise_prefix_list_cmd); + + install_element(INTERFACE_NODE, &ipv6_ospf6_network_cmd); + install_element(INTERFACE_NODE, &no_ipv6_ospf6_network_cmd); + + /* reference bandwidth commands */ + install_element(OSPF6_NODE, &auto_cost_reference_bandwidth_cmd); + install_element(OSPF6_NODE, &no_auto_cost_reference_bandwidth_cmd); + /* write-multiplier commands */ + install_element(OSPF6_NODE, &ospf6_write_multiplier_cmd); + install_element(OSPF6_NODE, &no_ospf6_write_multiplier_cmd); +} + +/* Clear the specified interface structure */ +void ospf6_interface_clear(struct interface *ifp) +{ + struct ospf6_interface *oi; + + if (!if_is_operative(ifp)) + return; + + if (ifp->info == NULL) + return; + + oi = (struct ospf6_interface *)ifp->info; + + if (IS_OSPF6_DEBUG_INTERFACE) + zlog_debug("Interface %s: clear by reset", ifp->name); + + /* Reset the interface */ + event_execute(master, interface_down, oi, 0, NULL); + event_execute(master, interface_up, oi, 0, NULL); +} + +/* Clear interface */ +DEFUN (clear_ipv6_ospf6_interface, + clear_ipv6_ospf6_interface_cmd, + "clear ipv6 ospf6 [vrf NAME] interface [IFNAME]", + CLEAR_STR + IP6_STR + OSPF6_STR + VRF_CMD_HELP_STR + INTERFACE_STR + IFNAME_STR + ) +{ + struct vrf *vrf; + int idx_vrf = 3; + int idx_ifname = 4; + struct interface *ifp; + const char *vrf_name; + + if (argv_find(argv, argc, "vrf", &idx_vrf)) + vrf_name = argv[idx_vrf + 1]->arg; + else + vrf_name = VRF_DEFAULT_NAME; + vrf = vrf_lookup_by_name(vrf_name); + if (!vrf) { + vty_out(vty, "%% VRF %s not found\n", vrf_name); + return CMD_WARNING; + } + + if (!argv_find(argv, argc, "IFNAME", &idx_ifname)) { + /* Clear all the ospfv3 interfaces. */ + FOR_ALL_INTERFACES (vrf, ifp) + ospf6_interface_clear(ifp); + } else { + /* Interface name is specified. */ + ifp = if_lookup_by_name_vrf(argv[idx_ifname]->arg, vrf); + if (!ifp) { + vty_out(vty, "No such Interface: %s\n", + argv[idx_ifname]->arg); + return CMD_WARNING; + } + ospf6_interface_clear(ifp); + } + + return CMD_SUCCESS; +} + +void install_element_ospf6_clear_interface(void) +{ + install_element(ENABLE_NODE, &clear_ipv6_ospf6_interface_cmd); +} + +DEFUN (debug_ospf6_interface, + debug_ospf6_interface_cmd, + "debug ospf6 interface", + DEBUG_STR + OSPF6_STR + "Debug OSPFv3 Interface\n" + ) +{ + OSPF6_DEBUG_INTERFACE_ON(); + return CMD_SUCCESS; +} + +DEFUN (no_debug_ospf6_interface, + no_debug_ospf6_interface_cmd, + "no debug ospf6 interface", + NO_STR + DEBUG_STR + OSPF6_STR + "Debug OSPFv3 Interface\n" + ) +{ + OSPF6_DEBUG_INTERFACE_OFF(); + return CMD_SUCCESS; +} + +int config_write_ospf6_debug_interface(struct vty *vty) +{ + if (IS_OSPF6_DEBUG_INTERFACE) + vty_out(vty, "debug ospf6 interface\n"); + return 0; +} + +void install_element_ospf6_debug_interface(void) +{ + install_element(ENABLE_NODE, &debug_ospf6_interface_cmd); + install_element(ENABLE_NODE, &no_debug_ospf6_interface_cmd); + install_element(CONFIG_NODE, &debug_ospf6_interface_cmd); + install_element(CONFIG_NODE, &no_debug_ospf6_interface_cmd); +} + +void ospf6_auth_write_config(struct vty *vty, struct ospf6_auth_data *at_data) +{ + if (CHECK_FLAG(at_data->flags, OSPF6_AUTH_TRAILER_KEYCHAIN)) + vty_out(vty, " ipv6 ospf6 authentication keychain %s\n", + at_data->keychain); + else if (CHECK_FLAG(at_data->flags, OSPF6_AUTH_TRAILER_MANUAL_KEY)) + vty_out(vty, + " ipv6 ospf6 authentication key-id %d hash-algo %s key %s\n", + at_data->key_id, + keychain_get_algo_name_by_id(at_data->hash_algo), + at_data->auth_key); +} + +DEFUN(ipv6_ospf6_intf_auth_trailer_keychain, + ipv6_ospf6_intf_auth_trailer_keychain_cmd, + "ipv6 ospf6 authentication keychain KEYCHAIN_NAME", + IP6_STR OSPF6_STR + "Enable authentication on this interface\n" + "Keychain\n" + "Keychain name\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int keychain_idx = 4; + struct ospf6_interface *oi; + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + + assert(oi); + if (CHECK_FLAG(oi->at_data.flags, OSPF6_AUTH_TRAILER_MANUAL_KEY)) { + vty_out(vty, + "Manual key configured, unconfigure it before configuring key chain\n"); + return CMD_WARNING_CONFIG_FAILED; + } + + SET_FLAG(oi->at_data.flags, OSPF6_AUTH_TRAILER_KEYCHAIN); + if (oi->at_data.keychain) + XFREE(MTYPE_OSPF6_AUTH_KEYCHAIN, oi->at_data.keychain); + + oi->at_data.keychain = + XSTRDUP(MTYPE_OSPF6_AUTH_KEYCHAIN, argv[keychain_idx]->arg); + + return CMD_SUCCESS; +} + +DEFUN(no_ipv6_ospf6_intf_auth_trailer_keychain, + no_ipv6_ospf6_intf_auth_trailer_keychain_cmd, + "no ipv6 ospf6 authentication keychain [KEYCHAIN_NAME]", + NO_STR IP6_STR OSPF6_STR + "Enable authentication on this interface\n" + "Keychain\n" + "Keychain name\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + + assert(oi); + if (!CHECK_FLAG(oi->at_data.flags, OSPF6_AUTH_TRAILER_KEYCHAIN)) + return CMD_SUCCESS; + + if (oi->at_data.keychain) { + oi->at_data.flags = 0; + XFREE(MTYPE_OSPF6_AUTH_KEYCHAIN, oi->at_data.keychain); + oi->at_data.keychain = NULL; + } + + return CMD_SUCCESS; +} + +DEFUN(ipv6_ospf6_intf_auth_trailer_key, ipv6_ospf6_intf_auth_trailer_key_cmd, + "ipv6 ospf6 authentication key-id (1-65535) hash-algo " + "<md5|hmac-sha-1|hmac-sha-256|hmac-sha-384|hmac-sha-512> " + "key WORD", + IP6_STR OSPF6_STR + "Authentication\n" + "Key ID\n" + "Key ID value\n" + "Cryptographic-algorithm\n" + "Use MD5 algorithm\n" + "Use HMAC-SHA-1 algorithm\n" + "Use HMAC-SHA-256 algorithm\n" + "Use HMAC-SHA-384 algorithm\n" + "Use HMAC-SHA-512 algorithm\n" + "Password\n" + "Password string (key)\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + int key_id_idx = 4; + int hash_algo_idx = 6; + int password_idx = 8; + struct ospf6_interface *oi; + uint8_t hash_algo = KEYCHAIN_ALGO_NULL; + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + + assert(oi); + if (CHECK_FLAG(oi->at_data.flags, OSPF6_AUTH_TRAILER_KEYCHAIN)) { + vty_out(vty, + "key chain configured, unconfigure it before configuring manual key\n"); + return CMD_WARNING_CONFIG_FAILED; + } + + hash_algo = keychain_get_algo_id_by_name(argv[hash_algo_idx]->arg); +#ifndef CRYPTO_OPENSSL + if (hash_algo == KEYCHAIN_ALGO_NULL) { + vty_out(vty, + "Hash algorithm not supported, compile with --with-crypto=openssl\n"); + return CMD_WARNING_CONFIG_FAILED; + } +#endif /* CRYPTO_OPENSSL */ + + SET_FLAG(oi->at_data.flags, OSPF6_AUTH_TRAILER_MANUAL_KEY); + oi->at_data.hash_algo = hash_algo; + oi->at_data.key_id = (uint16_t)strtol(argv[key_id_idx]->arg, NULL, 10); + if (oi->at_data.auth_key) + XFREE(MTYPE_OSPF6_AUTH_MANUAL_KEY, oi->at_data.auth_key); + oi->at_data.auth_key = + XSTRDUP(MTYPE_OSPF6_AUTH_MANUAL_KEY, argv[password_idx]->arg); + + return CMD_SUCCESS; +} + +DEFUN(no_ipv6_ospf6_intf_auth_trailer_key, + no_ipv6_ospf6_intf_auth_trailer_key_cmd, + "no ipv6 ospf6 authentication key-id [(1-65535) hash-algo " + "<md5|hmac-sha-1|hmac-sha-256|hmac-sha-384|hmac-sha-512> " + "key WORD]", + NO_STR IP6_STR OSPF6_STR + "Authentication\n" + "Key ID\n" + "Key ID value\n" + "Cryptographic-algorithm\n" + "Use MD5 algorithm\n" + "Use HMAC-SHA-1 algorithm\n" + "Use HMAC-SHA-256 algorithm\n" + "Use HMAC-SHA-384 algorithm\n" + "Use HMAC-SHA-512 algorithm\n" + "Password\n" + "Password string (key)\n") +{ + VTY_DECLVAR_CONTEXT(interface, ifp); + struct ospf6_interface *oi; +#ifndef CRYPTO_OPENSSL + int hash_algo_idx = 7; + uint8_t hash_algo = KEYCHAIN_ALGO_NULL; +#endif /* CRYPTO_OPENSSL */ + + oi = (struct ospf6_interface *)ifp->info; + if (oi == NULL) + oi = ospf6_interface_create(ifp); + + assert(oi); + if (!CHECK_FLAG(oi->at_data.flags, OSPF6_AUTH_TRAILER_MANUAL_KEY)) + return CMD_SUCCESS; + +#ifndef CRYPTO_OPENSSL + hash_algo = keychain_get_algo_id_by_name(argv[hash_algo_idx]->arg); + if (hash_algo == KEYCHAIN_ALGO_NULL) { + vty_out(vty, + "Hash algorithm not supported, compile with --with-crypto=openssl\n"); + return CMD_WARNING_CONFIG_FAILED; + } +#endif /* CRYPTO_OPENSSL */ + + if (oi->at_data.auth_key) { + oi->at_data.flags = 0; + XFREE(MTYPE_OSPF6_AUTH_MANUAL_KEY, oi->at_data.auth_key); + oi->at_data.auth_key = NULL; + } + + return CMD_SUCCESS; +} + +void ospf6_interface_auth_trailer_cmd_init(void) +{ + /*Install OSPF6 auth trailer commands at interface level */ + install_element(INTERFACE_NODE, + &ipv6_ospf6_intf_auth_trailer_keychain_cmd); + install_element(INTERFACE_NODE, + &no_ipv6_ospf6_intf_auth_trailer_keychain_cmd); + install_element(INTERFACE_NODE, &ipv6_ospf6_intf_auth_trailer_key_cmd); + install_element(INTERFACE_NODE, + &no_ipv6_ospf6_intf_auth_trailer_key_cmd); +} |