diff options
Diffstat (limited to 'proto/static/static.c')
-rw-r--r-- | proto/static/static.c | 179 |
1 files changed, 87 insertions, 92 deletions
diff --git a/proto/static/static.c b/proto/static/static.c index bb93305e..6bae827b 100644 --- a/proto/static/static.c +++ b/proto/static/static.c @@ -38,7 +38,7 @@ #include "nest/bird.h" #include "nest/iface.h" #include "nest/protocol.h" -#include "nest/route.h" +#include "nest/rt.h" #include "nest/cli.h" #include "conf/conf.h" #include "filter/filter.h" @@ -47,91 +47,96 @@ #include "static.h" -static linpool *static_lp; - static inline struct rte_src * static_get_source(struct static_proto *p, uint i) { return i ? rt_get_source(&p->p, i) : p->p.main_source; } +static inline void static_free_source(struct rte_src *src, uint i) +{ if (i) rt_unlock_source(src); } + static void static_announce_rte(struct static_proto *p, struct static_route *r) { - rta *a = allocz(RTA_MAX_SIZE); - struct rte_src *src = static_get_source(p, r->index); - a->source = RTS_STATIC; - a->scope = SCOPE_UNIVERSE; - a->dest = r->dest; - a->pref = p->p.main_channel->preference; + struct rte_src *src; + ea_list *ea = NULL; + ea_set_attr_u32(&ea, &ea_gen_preference, 0, p->p.main_channel->preference); + ea_set_attr_u32(&ea, &ea_gen_source, 0, RTS_STATIC); if (r->dest == RTD_UNICAST) { - struct static_route *r2; - struct nexthop *nhs = NULL; + uint sz = 0; + for (struct static_route *r2 = r; r2; r2 = r2->mp_next) + if (r2->active) + sz += NEXTHOP_SIZE_CNT(r2->mls ? r2->mls->length / sizeof(u32) : 0); - for (r2 = r; r2; r2 = r2->mp_next) + if (!sz) + goto withdraw; + + struct nexthop_adata *nhad = allocz(sz + sizeof *nhad); + struct nexthop *nh = &nhad->nh; + + for (struct static_route *r2 = r; r2; r2 = r2->mp_next) { if (!r2->active) continue; - struct nexthop *nh = allocz(NEXTHOP_MAX_SIZE); - nh->gw = r2->via; - nh->iface = r2->neigh->iface; - nh->flags = r2->onlink ? RNF_ONLINK : 0; - nh->weight = r2->weight; + *nh = (struct nexthop) { + .gw = r2->via, + .iface = r2->neigh->iface, + .flags = r2->onlink ? RNF_ONLINK : 0, + .weight = r2->weight, + }; + if (r2->mls) { - nh->labels = r2->mls->len; - memcpy(nh->label, r2->mls->stack, r2->mls->len * sizeof(u32)); + nh->labels = r2->mls->length / sizeof(u32); + memcpy(nh->label, r2->mls->data, r2->mls->length); } - nexthop_insert(&nhs, nh); + nh = NEXTHOP_NEXT(nh); } - if (!nhs) - goto withdraw; - - nexthop_link(a, nhs); + ea_set_attr_data(&ea, &ea_gen_nexthop, 0, + nhad->ad.data, (void *) nh - (void *) nhad->ad.data); } - if (r->dest == RTDX_RECURSIVE) + else if (r->dest == RTDX_RECURSIVE) { rtable *tab = ipa_is_ip4(r->via) ? p->igp_table_ip4 : p->igp_table_ip6; - rta_set_recursive_next_hop(p->p.main_channel->table, a, tab, r->via, IPA_NONE, r->mls); + u32 *labels = r->mls ? (void *) r->mls->data : NULL; + u32 lnum = r->mls ? r->mls->length / sizeof(u32) : 0; + + ea_set_hostentry(&ea, p->p.main_channel->table, tab, + r->via, IPA_NONE, lnum, labels); } + else if (r->dest) + ea_set_dest(&ea, 0, r->dest); + /* Already announced */ if (r->state == SRS_CLEAN) return; /* We skip rta_lookup() here */ - rte *e = rte_get_temp(a, src); + src = static_get_source(p, r->index); + rte e0 = { .attrs = ea, .src = src, .net = r->net, }, *e = &e0; + /* Evaluate the filter */ if (r->cmds) - { - /* Create a temporary table node */ - e->net = alloca(sizeof(net) + r->net->length); - memset(e->net, 0, sizeof(net) + r->net->length); - net_copy(e->net->n.addr, r->net); + f_eval_rte(r->cmds, e); - /* Evaluate the filter */ - f_eval_rte(r->cmds, &e, static_lp); + rte_update(p->p.main_channel, r->net, e, src); + static_free_source(src, r->index); - /* Remove the temporary node */ - e->net = NULL; - } - - rte_update2(p->p.main_channel, r->net, e, src); r->state = SRS_CLEAN; - - if (r->cmds) - lp_flush(static_lp); - return; withdraw: if (r->state == SRS_DOWN) return; - rte_update2(p->p.main_channel, r->net, NULL, src); + src = static_get_source(p, r->index); + rte_update(p->p.main_channel, r->net, NULL, src); + static_free_source(src, r->index); r->state = SRS_DOWN; } @@ -208,7 +213,7 @@ static_update_bfd(struct static_proto *p, struct static_route *r) // ip_addr local = ipa_nonzero(r->local) ? r->local : nb->ifa->ip; r->bfd_req = bfd_request_session(p->p.pool, r->via, nb->ifa->ip, nb->iface, p->p.vrf, - static_bfd_notify, r, NULL); + static_bfd_notify, r, p->p.loop, NULL); } if (!bfd_up && r->bfd_req) @@ -297,7 +302,11 @@ static void static_remove_rte(struct static_proto *p, struct static_route *r) { if (r->state) - rte_update2(p->p.main_channel, r->net, NULL, static_get_source(p, r->index)); + { + struct rte_src *src = static_get_source(p, r->index); + rte_update(p->p.main_channel, r->net, NULL, src); + static_free_source(src, r->index); + } static_reset_rte(p, r); } @@ -320,31 +329,17 @@ static_same_dest(struct static_route *x, struct static_route *y) (x->weight != y->weight) || (x->use_bfd != y->use_bfd) || (!x->mls != !y->mls) || - ((x->mls) && (y->mls) && (x->mls->len != y->mls->len))) + ((x->mls) && (y->mls) && adata_same(x->mls, y->mls))) return 0; - - if (!x->mls) - continue; - - for (uint i = 0; i < x->mls->len; i++) - if (x->mls->stack[i] != y->mls->stack[i]) - return 0; } return !x && !y; case RTDX_RECURSIVE: if (!ipa_equal(x->via, y->via) || (!x->mls != !y->mls) || - ((x->mls) && (y->mls) && (x->mls->len != y->mls->len))) + ((x->mls) && (y->mls) && adata_same(x->mls, y->mls))) return 0; - if (!x->mls) - return 1; - - for (uint i = 0; i < x->mls->len; i++) - if (x->mls->stack[i] != y->mls->stack[i]) - return 0; - return 1; default: @@ -411,18 +406,18 @@ static_reload_routes(struct channel *C) } static int -static_rte_better(rte *new, rte *old) +static_rte_better(const rte *new, const rte *old) { - u32 n = ea_get_int(new->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); - u32 o = ea_get_int(old->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); + u32 n = ea_get_int(new->attrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); + u32 o = ea_get_int(old->attrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); return n < o; } static int -static_rte_mergable(rte *pri, rte *sec) +static_rte_mergable(const rte *pri, const rte *sec) { - u32 a = ea_get_int(pri->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); - u32 b = ea_get_int(sec->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); + u32 a = ea_get_int(pri->attrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); + u32 b = ea_get_int(sec->attrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); return a == b; } @@ -441,11 +436,11 @@ static_postconfig(struct proto_config *CF) if (!cf->igp_table_ip4) cf->igp_table_ip4 = (cc->table->addr_type == NET_IP4) ? - cc->table : cf->c.global->def_tables[NET_IP4]; + cc->table : rt_get_default_table(cf->c.global, NET_IP4); if (!cf->igp_table_ip6) cf->igp_table_ip6 = (cc->table->addr_type == NET_IP6) ? - cc->table : cf->c.global->def_tables[NET_IP6]; + cc->table : rt_get_default_table(cf->c.global, NET_IP6); WALK_LIST(r, cf->routes) if (r->net && (r->net->type != CF->net_type)) @@ -454,6 +449,8 @@ static_postconfig(struct proto_config *CF) static_index_routes(cf); } +static struct rte_owner_class static_rte_owner_class; + static struct proto * static_init(struct proto_config *CF) { @@ -463,10 +460,9 @@ static_init(struct proto_config *CF) P->main_channel = proto_add_channel(P, proto_cf_main_channel(CF)); - P->neigh_notify = static_neigh_notify; + P->iface_sub.neigh_notify = static_neigh_notify; P->reload_routes = static_reload_routes; - P->rte_better = static_rte_better; - P->rte_mergable = static_rte_mergable; + P->sources.class = &static_rte_owner_class; if (cf->igp_table_ip4) p->igp_table_ip4 = cf->igp_table_ip4->table; @@ -484,9 +480,6 @@ static_start(struct proto *P) struct static_config *cf = (void *) P->cf; struct static_route *r; - if (!static_lp) - static_lp = lp_new(&root_pool); - if (p->igp_table_ip4) rt_lock_table(p->igp_table_ip4); @@ -501,7 +494,12 @@ static_start(struct proto *P) proto_notify_state(P, PS_UP); WALK_LIST(r, cf->routes) + { + struct lp_state lps; + lp_save(tmp_linpool, &lps); static_add_rte(p, r); + lp_restore(tmp_linpool, &lps); + } return PS_UP; } @@ -517,19 +515,13 @@ static_shutdown(struct proto *P) WALK_LIST(r, cf->routes) static_reset_rte(p, r); - return PS_DOWN; -} - -static void -static_cleanup(struct proto *P) -{ - struct static_proto *p = (void *) P; - if (p->igp_table_ip4) rt_unlock_table(p->igp_table_ip4); if (p->igp_table_ip6) rt_unlock_table(p->igp_table_ip6); + + return PS_DOWN; } static void @@ -717,13 +709,14 @@ static_copy_config(struct proto_config *dest, struct proto_config *src) } static void -static_get_route_info(rte *rte, byte *buf) +static_get_route_info(const rte *rte, byte *buf) { - eattr *a = ea_find(rte->attrs->eattrs, EA_GEN_IGP_METRIC); - if (a) - buf += bsprintf(buf, " (%d/%u)", rte->attrs->pref, a->u.data); + eattr *a = ea_find(rte->attrs, &ea_gen_igp_metric); + u32 pref = rt_get_preference(rte); + if (a && (a->u.data < IGP_METRIC_UNKNOWN)) + buf += bsprintf(buf, " (%d/%u)", pref, a->u.data); else - buf += bsprintf(buf, " (%d)", rte->attrs->pref); + buf += bsprintf(buf, " (%d)", pref); } static void @@ -773,11 +766,15 @@ static_show(struct proto *P) static_show_rt(r); } +static struct rte_owner_class static_rte_owner_class = { + .get_route_info = static_get_route_info, + .rte_better = static_rte_better, + .rte_mergable = static_rte_mergable, +}; struct protocol proto_static = { .name = "Static", .template = "static%d", - .class = PROTOCOL_STATIC, .preference = DEF_PREF_STATIC, .channel_mask = NB_ANY, .proto_size = sizeof(struct static_proto), @@ -787,10 +784,8 @@ struct protocol proto_static = { .dump = static_dump, .start = static_start, .shutdown = static_shutdown, - .cleanup = static_cleanup, .reconfigure = static_reconfigure, .copy_config = static_copy_config, - .get_route_info = static_get_route_info, }; void |