diff options
Diffstat (limited to 'ldpd/lde_lib.c')
| -rw-r--r-- | ldpd/lde_lib.c | 56 |
1 files changed, 46 insertions, 10 deletions
diff --git a/ldpd/lde_lib.c b/ldpd/lde_lib.c index 02730189a..c37a9e966 100644 --- a/ldpd/lde_lib.c +++ b/ldpd/lde_lib.c @@ -374,7 +374,8 @@ lde_kernel_update(struct fec *fec) } if (LIST_EMPTY(&fn->nexthops)) { - lde_send_labelwithdraw_all(fn, NO_LABEL); + RB_FOREACH(ln, nbr_tree, &lde_nbrs) + lde_send_labelwithdraw(ln, fn, NULL, NULL); fn->local_label = NO_LABEL; fn->data = NULL; } else { @@ -478,7 +479,7 @@ lde_check_mapping(struct map *map, struct lde_nbr *ln) /* LMp.10 */ if (me->map.label != map->label && lre == NULL) { /* LMp.10a */ - lde_send_labelrelease(ln, fn, me->map.label); + lde_send_labelrelease(ln, fn, NULL, me->map.label); /* * Can not use lde_nbr_find_by_addr() because there's @@ -612,9 +613,12 @@ lde_check_release(struct map *map, struct lde_nbr *ln) struct lde_wdraw *lw; struct lde_map *me; - /* TODO group wildcard */ - if (map->type == MAP_TYPE_PWID && !(map->flags & F_MAP_PW_ID)) + /* wildcard label release */ + if (map->type == MAP_TYPE_WILDCARD || + (map->type == MAP_TYPE_PWID && !(map->flags & F_MAP_PW_ID))) { + lde_check_release_wcard(map, ln); return; + } lde_map2fec(map, ln->id, &fec); fn = (struct fec_node *)fec_find(&ft, &fec); @@ -650,6 +654,11 @@ lde_check_release_wcard(struct map *map, struct lde_nbr *ln) RB_FOREACH(f, fec_tree, &ft) { fn = (struct fec_node *)f; + me = (struct lde_map *)fec_find(&ln->sent_map, &fn->fec); + + /* LRl.1: does FEC match a known FEC? */ + if (lde_wildcard_apply(map, &fn->fec, me) == 0) + continue; /* LRl.3: first check if we have a pending withdraw running */ lw = (struct lde_wdraw *)fec_find(&ln->sent_wdraw, &fn->fec); @@ -659,7 +668,6 @@ lde_check_release_wcard(struct map *map, struct lde_nbr *ln) } /* LRl.6: check sent map list and remove it if available */ - me = (struct lde_map *)fec_find(&ln->sent_map, &fn->fec); if (me && (map->label == NO_LABEL || map->label == me->map.label)) lde_map_del(ln, me, 1); @@ -680,9 +688,12 @@ lde_check_withdraw(struct map *map, struct lde_nbr *ln) struct lde_map *me; struct l2vpn_pw *pw; - /* TODO group wildcard */ - if (map->type == MAP_TYPE_PWID && !(map->flags & F_MAP_PW_ID)) + /* wildcard label withdraw */ + if (map->type == MAP_TYPE_WILDCARD || + (map->type == MAP_TYPE_PWID && !(map->flags & F_MAP_PW_ID))) { + lde_check_withdraw_wcard(map, ln); return; + } lde_map2fec(map, ln->id, &fec); fn = (struct fec_node *)fec_find(&ft, &fec); @@ -713,7 +724,7 @@ lde_check_withdraw(struct map *map, struct lde_nbr *ln) } /* LWd.2: send label release */ - lde_send_labelrelease(ln, fn, map->label); + lde_send_labelrelease(ln, fn, NULL, map->label); /* LWd.3: check previously received label mapping */ me = (struct lde_map *)fec_find(&ln->recv_map, &fn->fec); @@ -731,10 +742,14 @@ lde_check_withdraw_wcard(struct map *map, struct lde_nbr *ln) struct lde_map *me; /* LWd.2: send label release */ - lde_send_labelrelease(ln, NULL, map->label); + lde_send_labelrelease(ln, NULL, map, map->label); RB_FOREACH(f, fec_tree, &ft) { fn = (struct fec_node *)f; + me = (struct lde_map *)fec_find(&ln->recv_map, &fn->fec); + + if (lde_wildcard_apply(map, &fn->fec, me) == 0) + continue; /* LWd.1: remove label from forwarding/switching use */ LIST_FOREACH(fnh, &fn->nexthops, entry) { @@ -761,7 +776,6 @@ lde_check_withdraw_wcard(struct map *map, struct lde_nbr *ln) } /* LWd.3: check previously received label mapping */ - me = (struct lde_map *)fec_find(&ln->recv_map, &fn->fec); if (me && (map->label == NO_LABEL || map->label == me->map.label)) /* @@ -772,6 +786,28 @@ lde_check_withdraw_wcard(struct map *map, struct lde_nbr *ln) } } +int +lde_wildcard_apply(struct map *wcard, struct fec *fec, struct lde_map *me) +{ + switch (wcard->type) { + case MAP_TYPE_WILDCARD: + /* full wildcard */ + return (1); + case MAP_TYPE_PWID: + /* RFC4447 pw-id group wildcard */ + if (fec->type != FEC_TYPE_PWID) + return (0); + if (fec->u.pwid.type != wcard->fec.pwid.type) + return (0); + if (me == NULL || (me->map.fec.pwid.group_id != + wcard->fec.pwid.group_id)) + return (0); + return (1); + default: + fatalx("lde_wildcard_apply: unexpected fec type"); + } +} + /* gabage collector timer: timer to remove dead entries from the LIB */ /* ARGSUSED */ |