diff options
Diffstat (limited to 'nest/rt-table.c')
| -rw-r--r-- | nest/rt-table.c | 421 |
1 files changed, 5 insertions, 416 deletions
diff --git a/nest/rt-table.c b/nest/rt-table.c index 67ccc885..85a951b8 100644 --- a/nest/rt-table.c +++ b/nest/rt-table.c @@ -33,7 +33,6 @@ #include "nest/bird.h" #include "nest/route.h" #include "nest/protocol.h" -#include "nest/cli.h" #include "nest/iface.h" #include "lib/resource.h" #include "lib/event.h" @@ -57,15 +56,6 @@ static void rt_next_hop_update(rtable *tab); static inline void rt_prune_table(rtable *tab); -static inline struct ea_list * -make_tmp_attrs(struct rte *rt, struct linpool *pool) -{ - struct ea_list *(*mta)(struct rte *rt, struct linpool *pool); - mta = rt->attrs->src->proto->make_tmp_attrs; - return mta ? mta(rt, pool) : NULL; -} - - /* Like fib_route(), but skips empty net entries */ static inline void * net_route_ip4(rtable *t, net_addr_ip4 *n) @@ -376,7 +366,7 @@ export_filter_(struct channel *c, rte *rt0, rte **rt_free, ea_list **tmpa, linpo if (!tmpa) tmpa = &tmpb; - *tmpa = make_tmp_attrs(rt, pool); + *tmpa = rte_make_tmp_attrs(rt, pool); v = p->import_control ? p->import_control(p, &rt, tmpa, pool) : 0; if (v < 0) @@ -1344,7 +1334,7 @@ rte_update2(struct channel *c, const net_addr *n, rte *new, struct rte_src *src) } else { - tmpa = make_tmp_attrs(new, rte_update_pool); + tmpa = rte_make_tmp_attrs(new, rte_update_pool); if (filter && (filter != FILTER_REJECT)) { ea_list *old_tmpa = tmpa; @@ -1424,7 +1414,7 @@ rt_examine(rtable *t, net_addr *a, struct proto *p, struct filter *filter) rte_update_lock(); /* Rest is stripped down export_filter() */ - ea_list *tmpa = make_tmp_attrs(rt, rte_update_pool); + ea_list *tmpa = rte_make_tmp_attrs(rt, rte_update_pool); int v = p->import_control ? p->import_control(p, &rt, &tmpa, rte_update_pool) : 0; if (v == RIC_PROCESS) v = (f_run(filter, &rt, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) <= F_ACCEPT); @@ -1634,7 +1624,7 @@ rt_init(void) { rta_init(); rt_table_pool = rp_new(&root_pool, "Routing tables"); - rte_update_pool = lp_new(rt_table_pool, 4080); + rte_update_pool = lp_new_default(rt_table_pool); rte_slab = sl_new(rt_table_pool, sizeof(rte)); init_list(&routing_tables); } @@ -2314,7 +2304,7 @@ rt_init_hostcache(rtable *tab) hc_alloc_table(hc, HC_DEF_ORDER); hc->slab = sl_new(rt_table_pool, sizeof(struct hostentry)); - hc->lp = lp_new(rt_table_pool, 1008); + hc->lp = lp_new(rt_table_pool, LP_GOOD_SIZE(1024)); hc->trie = f_new_trie(hc->lp, sizeof(struct f_trie_node)); tab->hostcache = hc; @@ -2500,407 +2490,6 @@ rt_get_hostentry(rtable *tab, ip_addr a, ip_addr ll, rtable *dep) /* - * CLI commands - */ - -static void -rt_show_table(struct cli *c, struct rt_show_data *d) -{ - /* No table blocks in 'show route count' */ - if (d->stats == 2) - return; - - if (d->last_table) cli_printf(c, -1007, ""); - cli_printf(c, -1007, "Table %s:", d->tab->table->name); - d->last_table = d->tab; -} - -static void -rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, ea_list *tmpa) -{ - byte from[IPA_MAX_TEXT_LENGTH+8]; - byte tm[TM_DATETIME_BUFFER_SIZE], info[256]; - rta *a = e->attrs; - int primary = (e->net->routes == e); - int sync_error = (e->net->n.flags & KRF_SYNC_ERROR); - void (*get_route_info)(struct rte *, byte *buf, struct ea_list *attrs); - struct nexthop *nh; - - tm_format_datetime(tm, &config->tf_route, e->lastmod); - if (ipa_nonzero(a->from) && !ipa_equal(a->from, a->nh.gw)) - bsprintf(from, " from %I", a->from); - else - from[0] = 0; - - get_route_info = a->src->proto->proto->get_route_info; - if (get_route_info || d->verbose) - { - /* Need to normalize the extended attributes */ - ea_list *t = tmpa; - t = ea_append(t, a->eattrs); - tmpa = alloca(ea_scan(t)); - ea_merge(t, tmpa); - ea_sort(tmpa); - } - if (get_route_info) - get_route_info(e, info, tmpa); - else - bsprintf(info, " (%d)", e->pref); - - if (d->last_table != d->tab) - rt_show_table(c, d); - - cli_printf(c, -1007, "%-18s %s [%s %s%s]%s%s", ia, rta_dest_name(a->dest), - a->src->proto->name, tm, from, primary ? (sync_error ? " !" : " *") : "", info); - - if (a->dest == RTD_UNICAST) - for (nh = &(a->nh); nh; nh = nh->next) - { - char mpls[MPLS_MAX_LABEL_STACK*12 + 5], *lsp = mpls; - - if (nh->labels) - { - lsp += bsprintf(lsp, " mpls %d", nh->label[0]); - for (int i=1;i<nh->labels; i++) - lsp += bsprintf(lsp, "/%d", nh->label[i]); - } - *lsp = '\0'; - - if (a->nh.next) - cli_printf(c, -1007, "\tvia %I%s on %s weight %d", nh->gw, mpls, nh->iface->name, nh->weight + 1); - else - cli_printf(c, -1007, "\tvia %I%s on %s", nh->gw, mpls, nh->iface->name); - } - - if (d->verbose) - rta_show(c, a, tmpa); -} - -static void -rt_show_net(struct cli *c, net *n, struct rt_show_data *d) -{ - rte *e, *ee; - byte ia[NET_MAX_TEXT_LENGTH+1]; - struct ea_list *tmpa; - struct channel *ec = d->tab->export_channel; - int first = 1; - int pass = 0; - - bsnprintf(ia, sizeof(ia), "%N", n->n.addr); - - for (e = n->routes; e; e = e->next) - { - if (rte_is_filtered(e) != d->filtered) - continue; - - d->rt_counter++; - d->net_counter += first; - first = 0; - - if (pass) - continue; - - ee = e; - rte_update_lock(); /* We use the update buffer for filtering */ - tmpa = make_tmp_attrs(e, rte_update_pool); - - /* Export channel is down, do not try to export routes to it */ - if (ec && (ec->export_state == ES_DOWN)) - goto skip; - - /* Special case for merged export */ - if ((d->export_mode == RSEM_EXPORT) && (ec->ra_mode == RA_MERGED)) - { - rte *rt_free; - e = rt_export_merged(ec, n, &rt_free, &tmpa, rte_update_pool, 1); - pass = 1; - - if (!e) - { e = ee; goto skip; } - } - else if (d->export_mode) - { - struct proto *ep = ec->proto; - int ic = ep->import_control ? ep->import_control(ep, &e, &tmpa, rte_update_pool) : 0; - - if (ec->ra_mode == RA_OPTIMAL || ec->ra_mode == RA_MERGED) - pass = 1; - - if (ic < 0) - goto skip; - - if (d->export_mode > RSEM_PREEXPORT) - { - /* - * FIXME - This shows what should be exported according to current - * filters, but not what was really exported. 'configure soft' - * command may change the export filter and do not update routes. - */ - int do_export = (ic > 0) || - (f_run(ec->out_filter, &e, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) <= F_ACCEPT); - - if (do_export != (d->export_mode == RSEM_EXPORT)) - goto skip; - - if ((d->export_mode == RSEM_EXPORT) && (ec->ra_mode == RA_ACCEPTED)) - pass = 1; - } - } - - if (d->show_protocol && (d->show_protocol != e->attrs->src->proto)) - goto skip; - - if (f_run(d->filter, &e, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT) - goto skip; - - if (d->stats < 2) - rt_show_rte(c, ia, e, d, tmpa); - - d->show_counter++; - ia[0] = 0; - - skip: - if (e != ee) - { - rte_free(e); - e = ee; - } - rte_update_unlock(); - - if (d->primary_only) - break; - } -} - -static void -rt_show_cleanup(struct cli *c) -{ - struct rt_show_data *d = c->rover; - struct rt_show_data_rtable *tab; - - /* Unlink the iterator */ - if (d->table_open) - fit_get(&d->tab->table->fib, &d->fit); - - /* Unlock referenced tables */ - WALK_LIST(tab, d->tables) - rt_unlock_table(tab->table); -} - -static void -rt_show_cont(struct cli *c) -{ - struct rt_show_data *d = c->rover; -#ifdef DEBUGGING - unsigned max = 4; -#else - unsigned max = 64; -#endif - struct fib *fib = &d->tab->table->fib; - struct fib_iterator *it = &d->fit; - - if (d->running_on_config && (d->running_on_config != config)) - { - cli_printf(c, 8004, "Stopped due to reconfiguration"); - goto done; - } - - if (!d->table_open) - { - FIB_ITERATE_INIT(&d->fit, &d->tab->table->fib); - d->table_open = 1; - d->table_counter++; - - d->show_counter_last = d->show_counter; - d->rt_counter_last = d->rt_counter; - d->net_counter_last = d->net_counter; - - if (d->tables_defined_by & RSD_TDB_SET) - rt_show_table(c, d); - } - - FIB_ITERATE_START(fib, it, net, n) - { - if (!max--) - { - FIB_ITERATE_PUT(it); - return; - } - rt_show_net(c, n, d); - } - FIB_ITERATE_END; - - if (d->stats) - { - if (d->last_table != d->tab) - rt_show_table(c, d); - - cli_printf(c, -1007, "%d of %d routes for %d networks in table %s", - d->show_counter - d->show_counter_last, d->rt_counter - d->rt_counter_last, - d->net_counter - d->net_counter_last, d->tab->table->name); - } - - d->table_open = 0; - d->tab = NODE_NEXT(d->tab); - - if (NODE_VALID(d->tab)) - return; - - if (d->stats && (d->table_counter > 1)) - { - if (d->last_table) cli_printf(c, -1007, ""); - cli_printf(c, 14, "Total: %d of %d routes for %d networks in %d tables", - d->show_counter, d->rt_counter, d->net_counter, d->table_counter); - } - else - cli_printf(c, 0, ""); - -done: - rt_show_cleanup(c); - c->cont = c->cleanup = NULL; -} - -struct rt_show_data_rtable * -rt_show_add_table(struct rt_show_data *d, rtable *t) -{ - struct rt_show_data_rtable *tab = cfg_allocz(sizeof(struct rt_show_data_rtable)); - tab->table = t; - add_tail(&(d->tables), &(tab->n)); - return tab; -} - -static inline void -rt_show_get_default_tables(struct rt_show_data *d) -{ - struct channel *c; - struct rt_show_data_rtable *tab; - - if (d->export_channel) - { - c = d->export_channel; - tab = rt_show_add_table(d, c->table); - tab->export_channel = c; - return; - } - - if (d->export_protocol) - { - WALK_LIST(c, d->export_protocol->channels) - { - if (c->export_state == ES_DOWN) - continue; - - tab = rt_show_add_table(d, c->table); - tab->export_channel = c; - } - return; - } - - if (d->show_protocol) - { - WALK_LIST(c, d->show_protocol->channels) - rt_show_add_table(d, c->table); - return; - } - - for (int i=1; i<NET_MAX; i++) - if (config->def_tables[i]) - rt_show_add_table(d, config->def_tables[i]->table); -} - -static inline void -rt_show_prepare_tables(struct rt_show_data *d) -{ - struct rt_show_data_rtable *tab, *tabx; - - /* Add implicit tables if no table is specified */ - if (EMPTY_LIST(d->tables)) - rt_show_get_default_tables(d); - - WALK_LIST_DELSAFE(tab, tabx, d->tables) - { - /* Ensure there is defined export_channel for each table */ - if (d->export_mode) - { - if (!tab->export_channel && d->export_channel && - (tab->table == d->export_channel->table)) - tab->export_channel = d->export_channel; - - if (!tab->export_channel && d->export_protocol) - tab->export_channel = proto_find_channel_by_table(d->export_protocol, tab->table); - - if (!tab->export_channel) - { - if (d->tables_defined_by & RSD_TDB_NMN) - cf_error("No export channel for table %s", tab->table->name); - - rem_node(&(tab->n)); - continue; - } - } - - /* Ensure specified network is compatible with each table */ - if (d->addr && (tab->table->addr_type != d->addr->type)) - { - if (d->tables_defined_by & RSD_TDB_NMN) - cf_error("Incompatible type of prefix/ip for table %s", tab->table->name); - - rem_node(&(tab->n)); - continue; - } - } - - /* Ensure there is at least one table */ - if (EMPTY_LIST(d->tables)) - cf_error("No valid tables"); -} - -void -rt_show(struct rt_show_data *d) -{ - struct rt_show_data_rtable *tab; - net *n; - - /* Filtered routes are neither exported nor have sensible ordering */ - if (d->filtered && (d->export_mode || d->primary_only)) - cf_error("Incompatible show route options"); - - rt_show_prepare_tables(d); - - if (!d->addr) - { - WALK_LIST(tab, d->tables) - rt_lock_table(tab->table); - - /* There is at least one table */ - d->tab = HEAD(d->tables); - this_cli->cont = rt_show_cont; - this_cli->cleanup = rt_show_cleanup; - this_cli->rover = d; - } - else - { - WALK_LIST(tab, d->tables) - { - d->tab = tab; - - if (d->show_for) - n = net_route(tab->table, d->addr); - else - n = net_find(tab->table, d->addr); - - if (n) - rt_show_net(this_cli, n, d); - } - - if (d->rt_counter) - cli_msg(0, ""); - else - cli_msg(8001, "Network not found"); - } -} - -/* * Documentation for functions declared inline in route.h */ #if 0 |