--- /dev/null
- (f_run(ec->out_filter, &e, &tmpa, c->show_pool, FF_FORCE_TMPATTR) <= F_ACCEPT);
+/*
+ * BIRD -- Route Display Routines
+ *
+ * (c) 1998--2000 Martin Mares <mj@ucw.cz>
+ * (c) 2017 Jan Moskyto Matejka <mq@jmq.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#undef LOCAL_DEBUG
+
+#include "nest/bird.h"
+#include "nest/route.h"
+#include "nest/protocol.h"
+#include "nest/cli.h"
+#include "nest/iface.h"
+#include "filter/filter.h"
+
+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_time(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, "%-20s %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;
+ char *onlink = (nh->flags & RNF_ONLINK) ? " onlink" : "";
+ char weight[16] = "";
+
+ 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)
+ bsprintf(weight, " weight %d", nh->weight + 1);
+
+ if (ipa_nonzero(nh->gw))
+ cli_printf(c, -1007, "\tvia %I on %s%s%s%s",
+ nh->gw, nh->iface->name, mpls, onlink, weight);
+ else
+ cli_printf(c, -1007, "\tdev %s%s%s",
+ nh->iface->name, mpls, onlink, weight);
+ }
+
+ 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;
+ tmpa = rte_make_tmp_attrs(e, c->show_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, c->show_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, c->show_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, c->show_pool,
++ FF_FORCE_TMPATTR | FF_SILENT) <= 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, c->show_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;
+ }
+ lp_flush(c->show_pool);
+
+ 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");
+ }
+}
+
CF_DECLS
-CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY,
- KEEPALIVE, MULTIHOP, STARTUP, VIA, NEXT, HOP, SELF, DEFAULT,
- PATH, METRIC, ERROR, START, DELAY, FORGET, WAIT, ENABLE,
- DISABLE, AFTER, BGP_PATH, BGP_LOCAL_PREF, BGP_MED, BGP_ORIGIN,
- BGP_NEXT_HOP, BGP_ATOMIC_AGGR, BGP_AGGREGATOR, BGP_COMMUNITY,
- BGP_EXT_COMMUNITY, SOURCE, ADDRESS, PASSWORD, RR, RS, CLIENT,
- CLUSTER, ID, AS4, ADVERTISE, IPV4, CAPABILITIES, LIMIT, PASSIVE,
- PREFER, OLDER, MISSING, LLADDR, DROP, IGNORE, ROUTE, REFRESH,
- INTERPRET, COMMUNITIES, BGP_ORIGINATOR_ID, BGP_CLUSTER_LIST, IGP,
- TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL, SECURITY, DETERMINISTIC,
- SECONDARY, ALLOW, BFD, ADD, PATHS, RX, TX, GRACEFUL, RESTART, AWARE,
- CHECK, LINK, PORT, EXTENDED, MESSAGES, SETKEY, BGP_LARGE_COMMUNITY)
+CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY, KEEPALIVE,
+ MULTIHOP, STARTUP, VIA, NEXT, HOP, SELF, DEFAULT, PATH, METRIC, ERROR,
+ START, DELAY, FORGET, WAIT, ENABLE, DISABLE, AFTER, BGP_PATH,
+ BGP_LOCAL_PREF, BGP_MED, BGP_ORIGIN, BGP_NEXT_HOP, BGP_ATOMIC_AGGR,
+ BGP_AGGREGATOR, BGP_COMMUNITY, BGP_EXT_COMMUNITY, BGP_LARGE_COMMUNITY,
+ SOURCE, ADDRESS, PASSWORD, RR, RS, CLIENT, CLUSTER, ID, AS4, ADVERTISE,
+ IPV4, CAPABILITIES, LIMIT, PASSIVE, PREFER, OLDER, MISSING, LLADDR,
+ DROP, IGNORE, ROUTE, REFRESH, INTERPRET, COMMUNITIES, BGP_ORIGINATOR_ID,
+ BGP_CLUSTER_LIST, IGP, TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL,
+ SECURITY, DETERMINISTIC, SECONDARY, ALLOW, BFD, ADD, PATHS, RX, TX,
+ GRACEFUL, RESTART, AWARE, CHECK, LINK, PORT, EXTENDED, MESSAGES, SETKEY,
+ STRICT, BIND, CONFEDERATION, MEMBER, MULTICAST, FLOW4, FLOW6)
+
+%type <i32> bgp_afi
+ CF_KEYWORDS(CEASE, PREFIX, LIMIT, HIT, ADMINISTRATIVE, SHUTDOWN, RESET, PEER,
+ CONFIGURATION, CHANGE, DECONFIGURED, CONNECTION, REJECTED, COLLISION,
+ OUT, OF, RESOURCES)
+
+ %type<i> bgp_cease_mask bgp_cease_list bgp_cease_flag
+
CF_GRAMMAR
-CF_ADDTO(proto, bgp_proto '}' { bgp_check_config(BGP_CFG); } )
+CF_ADDTO(proto, bgp_proto '}' )
bgp_proto_start: proto_start BGP {
this_proto = proto_config_new(&proto_bgp, $1);
projects / thirdparty / bird.git / commitdiff
