mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-10-18 09:58:43 +00:00
bmp: merged bmp protocol from bird v2
This commit is contained in:
Katerina Kubecova
Maria Matejka
parent
7c04201390
commit
6f4a973113
@ -320,7 +320,7 @@ else
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AC_DEFINE([HAVE_CLOCK_MONOTONIC_COARSE], [1], [Define to 1 if coarse clock is available])
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fi
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all_protocols="aggregator bfd babel bgp l3vpn ospf pipe radv rip rpki static mrt"
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all_protocols="aggregator bfd babel bgp l3vpn ospf pipe radv rip rpki static mrt bmp"
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all_protocols=`echo $all_protocols | sed 's/ /,/g'`
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if test "$with_protocols" = all ; then
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@ -1906,7 +1906,10 @@ bgp_done_prefix(struct bgp_ptx_private *c, struct bgp_prefix *px, struct bgp_buc
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{
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/* BMP hack */
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if (buck->bmp)
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{
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rem_node(&px->buck_node);
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return;
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}
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/* Cleanup: We're called from bucket senders. */
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ASSERT_DIE(px->cur == buck);
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@ -1981,7 +1984,7 @@ bgp_out_item_done(struct lfjour *j UNUSED, struct lfjour_item *i UNUSED)
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{}
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static struct rt_export_feed *
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bgp_out_feed_net(struct rt_exporter *e, struct rcu_unwinder *u, u32 index, bool (*prefilter)(struct rt_export_feeder *, const net_addr *), struct rt_export_feeder *f, const struct rt_export_item *_first)
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bgp_out_feed_net(struct rt_exporter *e, struct rcu_unwinder *u, u32 index, bool (*prefilter)(struct rt_export_feeder *, const net_addr *), struct rt_export_feeder *f, UNUSED const struct rt_export_item *_first)
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{
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ASSERT_DIE(u == NULL);
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SKIP_BACK_DECLARE(struct bgp_ptx_private, c, exporter, e);
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@ -807,7 +807,7 @@ bgp_conn_enter_established_state(struct bgp_conn *conn)
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ea_set_attr(&ea_l, EA_LITERAL_EMBEDDED(&ea_bgp_remote_open_msg_len, 0, conn->remote_open_length));
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ea_l = ea_lookup(ea_l, 0, EALS_CUSTOM);
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proto_announce_state(&p->p, eal_l);
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proto_announce_state(&p->p, ea_l);
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#endif
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}
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@ -459,6 +459,8 @@ struct bgp_ptx_private {
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slab *prefix_slab; /* Slab holding prefix nodes */
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slab *bucket_slab; /* Slab holding buckets to send */
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char bmp; /* This is a fake ptx for BMP encoding */
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};
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typedef union bgp_ptx {
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@ -700,7 +702,7 @@ static inline struct bgp_proto *bgp_rte_proto(const rte *rte)
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SKIP_BACK(struct bgp_proto, p.sources, rte->src->owner) : NULL;
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}
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byte * bgp_bmp_encode_rte(struct bgp_channel *c, byte *buf, const net_addr *n, const struct rte *new, const struct rte_src *src);
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byte * bgp_bmp_encode_rte(ea_list *c, struct bgp_proto *bgp_p, byte *buf, const struct rte *new);
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#define BGP_AIGP_METRIC 1
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#define BGP_AIGP_MAX U64(0xffffffffffffffff)
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@ -744,6 +746,7 @@ void bgp_log_error(struct bgp_proto *p, u8 class, char *msg, unsigned code, unsi
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void bgp_update_next_hop(struct bgp_export_state *s, eattr *a, ea_list **to);
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byte *bgp_create_end_mark_(struct bgp_channel *c, byte *buf);
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byte *bgp_create_end_mark_ea_(ea_list *c, byte *buf);
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/* Packet types */
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@ -2337,10 +2337,11 @@ bgp_create_ip_reach(struct bgp_write_state *s, struct bgp_bucket *buck, byte *bu
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return buf+4+la+lr;
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}
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static byte *
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bgp_create_mp_reach(struct bgp_write_state *s, struct bgp_bucket *buck, byte *buf, byte *end)
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{
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ASSERT_DIE(s->ptx->withdraw_bucket != buck);
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ASSERT_DIE((s->ptx->bmp) || (s->ptx->withdraw_bucket != buck));
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/*
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* 2 B IPv4 Withdrawn Routes Length (zero)
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@ -2459,24 +2460,35 @@ bgp_create_mp_unreach(struct bgp_write_state *s, struct bgp_bucket *buck, byte *
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#ifdef CONFIG_BMP
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static byte *
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bgp_create_update_bmp(struct bgp_channel *c, byte *buf, struct bgp_bucket *buck, bool update)
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bgp_create_update_bmp(ea_list *channel_ea, struct bgp_proto *bgp_p, byte *buf, struct bgp_bucket *buck, bool update)
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{
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struct bgp_proto *p = (void *) c->c.proto;
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struct bgp_channel *c;
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u32 c_id = ea_get_int(channel_ea, &ea_channel_id, 0);
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BGP_WALK_CHANNELS(bgp_p, c)
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if (c->c.id == c_id)
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break;
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byte *end = buf + (BGP_MAX_EXT_MSG_LENGTH - BGP_HEADER_LENGTH);
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byte *res = NULL;
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/* FIXME: must be a bit shorter */
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struct bgp_caps *peer = p->conn->remote_caps;
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struct bgp_caps *peer = bgp_p->conn->remote_caps;
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const struct bgp_af_caps *rem = bgp_find_af_caps(peer, c->afi);
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struct bgp_ptx_private ptx = {
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.bmp = 1,
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.c = c,
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};
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struct bgp_write_state s = {
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.proto = p,
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.channel = c,
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.proto = bgp_p,
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.ptx = &ptx,
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.pool = tmp_linpool,
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.mp_reach = (c->afi != BGP_AF_IPV4) || rem->ext_next_hop,
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.as4_session = 1,
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.add_path = c->add_path_rx,
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.mpls = c->desc->mpls,
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.ignore_non_bgp_attrs = 1,
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};
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if (!update)
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@ -2506,34 +2518,31 @@ bgp_bmp_prepare_bgp_hdr(byte *buf, const u16 msg_size, const u8 msg_type)
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}
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byte *
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bgp_bmp_encode_rte(struct bgp_channel *c, byte *buf, const net_addr *n,
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const struct rte *new, const struct rte_src *src)
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bgp_bmp_encode_rte(ea_list *c, struct bgp_proto *bgp_p, byte *buf, const struct rte *new)
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{
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// struct bgp_proto *p = (void *) c->c.proto;
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byte *pkt = buf + BGP_HEADER_LENGTH;
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ea_list *attrs = new ? new->attrs : NULL;
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uint ea_size = new ? (sizeof(ea_list) + attrs->count * sizeof(eattr)) : 0;
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uint bucket_size = sizeof(struct bgp_bucket) + ea_size;
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uint prefix_size = sizeof(struct bgp_prefix) + n->length;
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uint ea_size = new->attrs ? (sizeof(ea_list) + new->attrs->count * sizeof(eattr)) : 0;
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uint prefix_size = sizeof(struct bgp_prefix) + new->net->length;
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struct lp_state *tmpp = lp_save(tmp_linpool);
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/* Temporary bucket */
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struct bgp_bucket *b = tmp_allocz(bucket_size);
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struct bgp_bucket *b = tmp_allocz(sizeof(struct bgp_bucket) + ea_size);
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b->bmp = 1;
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init_list(&b->prefixes);
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if (attrs)
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memcpy(b->eattrs, attrs, ea_size);
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if (new->attrs)
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memcpy(b->eattrs, new->attrs, ea_size);
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/* Temporary prefix */
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struct bgp_prefix *px = tmp_allocz(prefix_size);
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px->path_id = (u32) src->private_id;
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net_copy(px->net, n);
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add_tail(&b->prefixes, &px->buck_node_xx);
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px->src = tmp_allocz(sizeof(struct rte_src));
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memcpy(px->src, new->src, sizeof(struct rte_src));
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px->ni = NET_TO_INDEX(new->net);
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add_tail(&b->prefixes, &px->buck_node);
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byte *end = bgp_create_update_bmp(c, pkt, b, !!new);
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byte *end = bgp_create_update_bmp(c, bgp_p, pkt, b, !!new->attrs);
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if (end)
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bgp_bmp_prepare_bgp_hdr(buf, end - buf, PKT_UPDATE);
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@ -2641,6 +2650,31 @@ bgp_create_mp_end_mark(struct bgp_channel *c, byte *buf)
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return buf+10;
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}
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static byte *
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bgp_create_mp_end_mark_ea(ea_list *c, byte *buf)
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{
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put_u16(buf+0, 0);
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put_u16(buf+2, 6); /* length 4--9 */
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/* Empty MP_UNREACH_NLRI atribute */
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buf[4] = BAF_OPTIONAL;
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buf[5] = BA_MP_UNREACH_NLRI;
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buf[6] = 3; /* Length 7--9 */
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int afi = ea_get_int(c, &ea_bgp_afi, 0);
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put_af3(buf+7, afi);
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return buf+10;
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}
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byte *
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bgp_create_end_mark_ea_(ea_list *c, byte *buf)
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{
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int afi = ea_get_int(c, &ea_bgp_afi, 0);
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return (afi == BGP_AF_IPV4) ?
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bgp_create_ip_end_mark(NULL, buf):
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bgp_create_mp_end_mark_ea(c, buf);
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}
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byte *
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bgp_create_end_mark_(struct bgp_channel *c, byte *buf)
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{
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522
proto/bmp/bmp.c
522
proto/bmp/bmp.c
@ -48,17 +48,16 @@
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#include "filter/filter.h"
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#include "proto/bgp/bgp.h"
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#include "sysdep/unix/unix.h"
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#include "sysdep/unix/io-loop.h"
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#include "lib/event.h"
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#include "lib/ip.h"
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#include "lib/lists.h"
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#include "lib/resource.h"
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#include "lib/unaligned.h"
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#include "lib/tlists.h"
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#include "nest/iface.h"
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#include "nest/route.h"
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// List of BMP instances
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static list STATIC_LIST_INIT(bmp_proto_list);
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#define HASH_PEER_KEY(n) n->bgp
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#define HASH_PEER_NEXT(n) n->next
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#define HASH_PEER_EQ(b1,b2) b1 == b2
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@ -213,13 +212,17 @@ enum bmp_term_reason {
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IF_COND_TRUE_PRINT_ERR_MSG_AND_RETURN_OPT_VAL(!(p), msg, rv); \
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} while (0)
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static const struct ea_class *bgp_next_hop_ea_class = NULL;
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static void bmp_connected(struct birdsock *sk);
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static void bmp_sock_err(sock *sk, int err);
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static void bmp_close_socket(struct bmp_proto *p);
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static void bmp_check_routes(void *bt_);
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static void bmp_feed_end(struct rt_export_request *req);
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static void bmp_recip_iteration(struct bmp_proto *p, struct lfjour_item *last_up);
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static void
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bmp_send_peer_up_notif_msg(struct bmp_proto *p, const struct bgp_proto *bgp,
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bmp_send_peer_up_notif_msg(struct bmp_proto *p, ea_list *bgp,
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const byte *tx_data, const size_t tx_data_size,
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const byte *rx_data, const size_t rx_data_size);
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@ -279,8 +282,8 @@ bmp_schedule_tx_packet(struct bmp_proto *p, const byte *payload, const size_t si
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{
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ASSERT(p->started);
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struct bmp_data_node *tx_data = mb_alloc(p->tx_mem_pool, sizeof (struct bmp_data_node));
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tx_data->data = mb_alloc(p->tx_mem_pool, size);
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struct bmp_data_node *tx_data = mb_allocz(p->tx_mem_pool, sizeof (struct bmp_data_node));
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tx_data->data = mb_allocz(p->tx_mem_pool, size);
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memcpy(tx_data->data, payload, size);
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tx_data->data_size = size;
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add_tail(&p->tx_queue, &tx_data->n);
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@ -482,42 +485,59 @@ bmp_peer_down_notif_msg_serialize(buffer *stream, const bool is_peer_global,
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*/
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static struct bmp_table *
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bmp_find_table(struct bmp_proto *p, struct rtable *tab)
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bmp_find_table(struct bmp_proto *p, rtable *tab)
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{
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return HASH_FIND(p->table_map, HASH_TABLE, tab);
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}
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const struct channel_class channel_bmp = {
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.channel_size = sizeof(struct channel),
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.config_size = sizeof(struct channel_config),
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/*.init =
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.start =
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.shutdown =
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.cleanup =
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.reconfigure = */
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};
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static struct bmp_table *
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bmp_add_table(struct bmp_proto *p, struct rtable *tab)
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bmp_add_table(struct bmp_proto *p, rtable *tab)
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{
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struct bmp_table *bt = mb_allocz(p->p.pool, sizeof(struct bmp_table));
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bt->table = tab;
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bt->p = p;
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rt_lock_table(bt->table);
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HASH_INSERT(p->table_map, HASH_TABLE, bt);
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struct channel_config cc = {
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.name = "monitor",
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.channel = &channel_basic,
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.table = tab->config,
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.in_filter = FILTER_REJECT,
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.net_type = tab->addr_type,
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.ra_mode = RA_ANY,
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.bmp_hack = 1,
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bt->event.data = bt;
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bt->event.hook = bmp_check_routes;
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bt->out_req = (struct rt_export_request) {
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.name = mb_sprintf(p->p.pool, "%s.exp_request", p->p.name),
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.r = (struct lfjour_recipient) {
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.target = proto_event_list(&p->p),
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.event = &bt->event,
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},
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.pool = p->p.pool,
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.trace_routes = p->p.debug,
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//.dump = channel_dump_export_req, TODO: this will crash on `dump tables` from CLI
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.fed = bmp_feed_end,
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};
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bt->channel = proto_add_channel(&p->p, &cc);
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channel_set_state(bt->channel, CS_UP);
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rt_export_subscribe(tab, all, &bt->out_req);
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return bt;
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}
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static void
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bmp_remove_table(struct bmp_proto *p, struct bmp_table *bt)
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{
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channel_set_state(bt->channel, CS_FLUSHING);
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channel_set_state(bt->channel, CS_DOWN);
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proto_remove_channel(&p->p, bt->channel);
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if (bt->channel)
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{
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channel_set_state(bt->channel, CS_STOP);
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channel_set_state(bt->channel, CS_DOWN);
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}
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rt_export_unsubscribe(all, &bt->out_req);
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HASH_REMOVE(p->table_map, HASH_TABLE, bt);
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@ -527,14 +547,39 @@ bmp_remove_table(struct bmp_proto *p, struct bmp_table *bt)
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mb_free(bt);
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}
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static inline struct bmp_table *bmp_get_table(struct bmp_proto *p, struct rtable *tab)
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{ return bmp_find_table(p, tab) ?: bmp_add_table(p, tab); }
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static inline void bmp_lock_table(struct bmp_proto *p UNUSED, struct bmp_table *bt)
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{ bt->uc++; }
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struct bmp_table *
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bmp_get_table(struct bmp_proto *p, rtable *tab)
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{
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struct bmp_table *bt = bmp_find_table(p, tab);
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if (bt)
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{
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while (true) {
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atomic_int i = bt->uc;
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if (i == 0)
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{
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struct bmp_table *new = bmp_add_table(p, tab);
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bmp_lock_table(p, new);
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return new;
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}
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if (atomic_compare_exchange_strong_explicit(&bt->uc, &i, i+1, memory_order_acq_rel, memory_order_relaxed))
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return bt;
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}
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}
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struct bmp_table *new = bmp_add_table(p, tab);
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bmp_lock_table(p, new);
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return new;
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}
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static inline void bmp_unlock_table(struct bmp_proto *p, struct bmp_table *bt)
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{ bt->uc--; if (!bt->uc) bmp_remove_table(p, bt); }
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{ atomic_int i = 1;
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if (atomic_compare_exchange_strong_explicit(&bt->uc, &i, 0, memory_order_acq_rel, memory_order_relaxed))
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bmp_remove_table(p, bt);
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else
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bt->uc--;
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}
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/*
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@ -544,20 +589,24 @@ static inline void bmp_unlock_table(struct bmp_proto *p, struct bmp_table *bt)
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static inline u32 bmp_stream_key(u32 afi, bool policy)
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{ return afi ^ (policy ? BMP_STREAM_KEY_POLICY : 0); }
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static inline u32 bmp_stream_afi(struct bmp_stream *bs)
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{ return bs->key & ~BMP_STREAM_KEY_POLICY; }
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static inline bool bmp_stream_policy(struct bmp_stream *bs)
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{ return !!(bs->key & BMP_STREAM_KEY_POLICY); }
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static struct bmp_stream *
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bmp_find_stream(struct bmp_proto *p, const struct bgp_proto *bgp, u32 afi, bool policy)
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{
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return HASH_FIND(p->stream_map, HASH_STREAM, bgp, bmp_stream_key(afi, policy));
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ea_list *bgp_attr = proto_get_state(bgp->p.id);
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struct bmp_stream *s = HASH_FIND(p->stream_map, HASH_STREAM, bgp_attr, bmp_stream_key(afi, policy));
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while (s == NULL)
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{
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bmp_recip_iteration(p, lfjour_get(&p->proto_state_reader));
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s = HASH_FIND(p->stream_map, HASH_STREAM, bgp_attr, bmp_stream_key(afi, policy));
|
||||
}
|
||||
return s;
|
||||
}
|
||||
|
||||
static struct bmp_stream *
|
||||
bmp_add_stream(struct bmp_proto *p, struct bmp_peer *bp, u32 afi, bool policy, struct rtable *tab, struct bgp_channel *sender)
|
||||
bmp_add_stream(struct bmp_proto *p, struct bmp_peer *bp, u32 afi, bool policy, rtable *tab, ea_list *sender, int in_pre_policy)
|
||||
{
|
||||
struct bmp_stream *bs = mb_allocz(p->p.pool, sizeof(struct bmp_stream));
|
||||
bs->bgp = bp->bgp;
|
||||
@ -567,10 +616,10 @@ bmp_add_stream(struct bmp_proto *p, struct bmp_peer *bp, u32 afi, bool policy, s
|
||||
HASH_INSERT(p->stream_map, HASH_STREAM, bs);
|
||||
|
||||
bs->table = bmp_get_table(p, tab);
|
||||
bmp_lock_table(p, bs->table);
|
||||
|
||||
bs->sender = sender;
|
||||
bs->sync = false;
|
||||
bs->in_pre_policy = in_pre_policy;
|
||||
|
||||
return bs;
|
||||
}
|
||||
@ -593,29 +642,56 @@ bmp_remove_stream(struct bmp_proto *p, struct bmp_stream *bs)
|
||||
*/
|
||||
|
||||
static struct bmp_peer *
|
||||
bmp_find_peer(struct bmp_proto *p, const struct bgp_proto *bgp)
|
||||
bmp_find_peer(struct bmp_proto *p, ea_list *bgp_attr)
|
||||
{
|
||||
return HASH_FIND(p->peer_map, HASH_PEER, bgp);
|
||||
return HASH_FIND(p->peer_map, HASH_PEER, bgp_attr);
|
||||
}
|
||||
|
||||
static struct bmp_peer *
|
||||
bmp_add_peer(struct bmp_proto *p, struct bgp_proto *bgp)
|
||||
bmp_add_peer(struct bmp_proto *p, ea_list *bgp_attr)
|
||||
{
|
||||
struct bmp_peer *bp = mb_allocz(p->p.pool, sizeof(struct bmp_peer));
|
||||
bp->bgp = bgp;
|
||||
struct bmp_peer *bp;
|
||||
if (DG_IS_LOCKED(p->p.pool->domain))
|
||||
bp = mb_allocz(p->p.pool, sizeof(struct bmp_peer));
|
||||
else
|
||||
{
|
||||
DG_LOCK(p->p.pool->domain);
|
||||
bp = mb_allocz(p->p.pool, sizeof(struct bmp_peer));
|
||||
DG_UNLOCK(p->p.pool->domain);
|
||||
}
|
||||
bp->bgp = bgp_attr;
|
||||
|
||||
init_list(&bp->streams);
|
||||
|
||||
HASH_INSERT(p->peer_map, HASH_PEER, bp);
|
||||
|
||||
struct bgp_channel *c;
|
||||
BGP_WALK_CHANNELS(bgp, c)
|
||||
{
|
||||
if (p->monitoring_rib.in_pre_policy && c->c.in_table)
|
||||
bmp_add_stream(p, bp, c->afi, false, c->c.in_table, c);
|
||||
const adata *channels_adata = ea_get_adata(bgp_attr, &ea_proto_channel_list);
|
||||
int id_count = channels_adata->length / sizeof(u32);
|
||||
u32 *chann_ids = (u32 *) channels_adata->data;
|
||||
|
||||
if (p->monitoring_rib.in_post_policy && c->c.table)
|
||||
bmp_add_stream(p, bp, c->afi, true, c->c.table, c);
|
||||
for (int i = 0; i < id_count; i++)
|
||||
{
|
||||
ea_list *chan_attr;
|
||||
PST_LOCKED(ts)
|
||||
chan_attr = ts->channels[chann_ids[i]];
|
||||
|
||||
if (chan_attr == NULL)
|
||||
continue;
|
||||
|
||||
rtable *ch_table = (rtable *) ea_get_ptr(chan_attr, &ea_rtable, 0);
|
||||
const char *name = ea_get_adata(chan_attr, &ea_name)->data;
|
||||
int in_keep = ea_get_int(chan_attr, &ea_in_keep, 0);
|
||||
|
||||
if (p->monitoring_rib.in_pre_policy && ch_table)
|
||||
{
|
||||
if (in_keep == RIK_PREFILTER)
|
||||
bmp_add_stream(p, bp, ea_get_int(chan_attr, &ea_bgp_afi, 0), false, ch_table, chan_attr, 1);
|
||||
else
|
||||
log(L_WARN "%s: Try to do pre policy with disabled import tables (channel %s)", p->p.name, name);
|
||||
}
|
||||
|
||||
if (p->monitoring_rib.in_post_policy && ch_table)
|
||||
bmp_add_stream(p, bp, ea_get_int(chan_attr, &ea_bgp_afi, 0), true, ch_table, chan_attr, 0);
|
||||
}
|
||||
|
||||
return bp;
|
||||
@ -634,22 +710,23 @@ bmp_remove_peer(struct bmp_proto *p, struct bmp_peer *bp)
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_peer_up_(struct bmp_proto *p, struct bgp_proto *bgp, bool sync,
|
||||
bmp_peer_up_(struct bmp_proto *p, ea_list *bgp_attr, bool sync,
|
||||
const byte *tx_open_msg, uint tx_open_length,
|
||||
const byte *rx_open_msg, uint rx_open_length)
|
||||
{
|
||||
if (!p->started)
|
||||
return;
|
||||
|
||||
struct bmp_peer *bp = bmp_find_peer(p, bgp);
|
||||
struct bmp_peer *bp = bmp_find_peer(p, bgp_attr);
|
||||
if (bp)
|
||||
return;
|
||||
|
||||
TRACE(D_STATES, "Peer up for %s", bgp->p.name);
|
||||
const char *name = ea_get_adata(bgp_attr, &ea_name)->data;
|
||||
TRACE(D_STATES, "Peer up for %s", name);
|
||||
|
||||
bp = bmp_add_peer(p, bgp);
|
||||
bp = bmp_add_peer(p, bgp_attr);
|
||||
|
||||
bmp_send_peer_up_notif_msg(p, bgp, tx_open_msg, tx_open_length, rx_open_msg, rx_open_length);
|
||||
bmp_send_peer_up_notif_msg(p, bgp_attr, tx_open_msg, tx_open_length, rx_open_msg, rx_open_length);
|
||||
|
||||
/*
|
||||
* We asssume peer_up() notifications are received before any route
|
||||
@ -667,98 +744,96 @@ bmp_peer_up_(struct bmp_proto *p, struct bgp_proto *bgp, bool sync,
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
bmp_peer_up(struct bgp_proto *bgp,
|
||||
const byte *tx_open_msg, uint tx_open_length,
|
||||
const byte *rx_open_msg, uint rx_open_length)
|
||||
{
|
||||
struct bmp_proto *p; node *n;
|
||||
WALK_LIST2(p, n, bmp_proto_list, bmp_node)
|
||||
bmp_peer_up_(p, bgp, true, tx_open_msg, tx_open_length, rx_open_msg, rx_open_length);
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_peer_init(struct bmp_proto *p, struct bgp_proto *bgp)
|
||||
bmp_peer_init(struct bmp_proto *p, ea_list *bgp_attr)
|
||||
{
|
||||
struct bgp_conn *conn = bgp->conn;
|
||||
const struct bgp_conn *conn = (const struct bgp_conn *) ea_get_ptr(bgp_attr, &ea_bgp_conn, 0);
|
||||
|
||||
if (!conn || (conn->state != BS_ESTABLISHED) ||
|
||||
!conn->local_open_msg || !conn->remote_open_msg)
|
||||
return;
|
||||
|
||||
bmp_peer_up_(p, bgp, false, conn->local_open_msg, conn->local_open_length,
|
||||
bmp_peer_up_(p, bgp_attr, false, conn->local_open_msg, conn->local_open_length,
|
||||
conn->remote_open_msg, conn->remote_open_length);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static const struct birdsock *
|
||||
bmp_get_birdsock(const struct bgp_proto *bgp)
|
||||
bmp_get_birdsock(ea_list *bgp)
|
||||
{
|
||||
if (bgp->conn && bgp->conn->sk)
|
||||
return bgp->conn->sk;
|
||||
struct bgp_conn *conn = (struct bgp_conn *) ea_get_ptr(bgp, &ea_bgp_conn, 0);
|
||||
if (conn && conn->sk)
|
||||
return conn->sk;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const struct birdsock *
|
||||
bmp_get_birdsock_ext(const struct bgp_proto *bgp)
|
||||
bmp_get_birdsock_ext(ea_list *bgp)
|
||||
{
|
||||
const struct birdsock *sk = bmp_get_birdsock(bgp);
|
||||
if (sk != NULL)
|
||||
return sk;
|
||||
|
||||
if (bgp->incoming_conn.sk)
|
||||
struct bgp_conn *in_conn = (struct bgp_conn *) ea_get_ptr(bgp, &ea_bgp_in_conn, 0);
|
||||
struct bgp_conn *out_conn = (struct bgp_conn *) ea_get_ptr(bgp, &ea_bgp_out_conn, 0);
|
||||
if (in_conn->sk)
|
||||
{
|
||||
sk = bgp->incoming_conn.sk;
|
||||
sk = in_conn->sk;
|
||||
}
|
||||
else if (bgp->outgoing_conn.sk)
|
||||
else if (out_conn->sk)
|
||||
{
|
||||
sk = bgp->outgoing_conn.sk;
|
||||
sk = out_conn->sk;
|
||||
}
|
||||
|
||||
return sk;
|
||||
}
|
||||
|
||||
static const struct bgp_caps *
|
||||
bmp_get_bgp_remote_caps(const struct bgp_proto *bgp)
|
||||
bmp_get_bgp_remote_caps(struct bgp_conn *bgp_conn)
|
||||
{
|
||||
if (bgp->conn && bgp->conn->remote_caps)
|
||||
return bgp->conn->remote_caps;
|
||||
if (bgp_conn && bgp_conn->remote_caps)
|
||||
return bgp_conn->remote_caps;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static const struct bgp_caps *
|
||||
bmp_get_bgp_remote_caps_ext(const struct bgp_proto *bgp)
|
||||
bmp_get_bgp_remote_caps_ext(ea_list *bgp)
|
||||
{
|
||||
const struct bgp_caps *remote_caps = bmp_get_bgp_remote_caps(bgp);
|
||||
struct bgp_conn *bgp_conn = (struct bgp_conn*) ea_get_adata(bgp, &ea_bgp_conn)->data;
|
||||
const struct bgp_caps *remote_caps = bmp_get_bgp_remote_caps(bgp_conn);
|
||||
if (remote_caps != NULL)
|
||||
return remote_caps;
|
||||
|
||||
if (bgp->incoming_conn.remote_caps)
|
||||
struct bgp_conn *bgp_in_conn = (struct bgp_conn*) ea_get_adata(bgp, &ea_bgp_in_conn)->data;
|
||||
struct bgp_conn *bgp_out_conn = (struct bgp_conn*) ea_get_adata(bgp, &ea_bgp_out_conn)->data;
|
||||
if (bgp_in_conn->remote_caps)
|
||||
{
|
||||
remote_caps = bgp->incoming_conn.remote_caps;
|
||||
remote_caps = bgp_in_conn->remote_caps;
|
||||
}
|
||||
else if (bgp->outgoing_conn.remote_caps)
|
||||
else if (bgp_out_conn->remote_caps)
|
||||
{
|
||||
remote_caps = bgp->outgoing_conn.remote_caps;
|
||||
remote_caps = bgp_out_conn->remote_caps;
|
||||
}
|
||||
|
||||
return remote_caps;
|
||||
}
|
||||
|
||||
static bool
|
||||
bmp_is_peer_global_instance(const struct bgp_proto *bgp)
|
||||
bmp_is_peer_global_instance(ea_list *bgp)
|
||||
{
|
||||
return (bgp->cf->peer_type != BGP_PT_EXTERNAL &&
|
||||
bgp->cf->peer_type != BGP_PT_INTERNAL)
|
||||
? (bgp->local_as != bgp->remote_as)
|
||||
: (bgp->cf->peer_type == BGP_PT_EXTERNAL);
|
||||
int peer_type = ea_get_int(bgp, &ea_bgp_peer_type, 0);
|
||||
int local_as = ea_get_int(bgp, &ea_bgp_loc_as, 0);
|
||||
int remote_as = ea_get_int(bgp, &ea_bgp_rem_as, 0);
|
||||
|
||||
return (peer_type != BGP_PT_EXTERNAL &&
|
||||
peer_type != BGP_PT_INTERNAL)
|
||||
? (local_as != remote_as)
|
||||
: (peer_type == BGP_PT_EXTERNAL);
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_send_peer_up_notif_msg(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
bmp_send_peer_up_notif_msg(struct bmp_proto *p, ea_list *bgp,
|
||||
const byte *tx_data, const size_t tx_data_size,
|
||||
const byte *rx_data, const size_t rx_data_size)
|
||||
{
|
||||
@ -770,10 +845,13 @@ bmp_send_peer_up_notif_msg(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
"[BMP] No BGP socket"
|
||||
);
|
||||
|
||||
const int rem_as = ea_get_int(bgp, &ea_bgp_rem_as, 0);
|
||||
const int rem_id = ea_get_int(bgp, &ea_bgp_rem_id, 0);
|
||||
const bool is_global_instance_peer = bmp_is_peer_global_instance(bgp);
|
||||
buffer payload = bmp_buffer_alloc(p->buffer_mpool, DEFAULT_MEM_BLOCK_SIZE);
|
||||
|
||||
bmp_peer_up_notif_msg_serialize(&payload, is_global_instance_peer,
|
||||
bgp->remote_as, bgp->remote_id, 1,
|
||||
rem_as, rem_id, 1,
|
||||
sk->saddr, sk->daddr, sk->sport, sk->dport, tx_data, tx_data_size,
|
||||
rx_data, rx_data_size);
|
||||
bmp_schedule_tx_packet(p, bmp_buffer_data(&payload), bmp_buffer_pos(&payload));
|
||||
@ -783,18 +861,19 @@ bmp_send_peer_up_notif_msg(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
static void
|
||||
bmp_route_monitor_put_update(struct bmp_proto *p, struct bmp_stream *bs, const byte *data, size_t length, btime timestamp)
|
||||
{
|
||||
struct bmp_data_node *upd_msg = mb_alloc(p->update_msg_mem_pool,
|
||||
struct bmp_data_node *upd_msg = mb_allocz(p->update_msg_mem_pool,
|
||||
sizeof (struct bmp_data_node));
|
||||
upd_msg->data = mb_alloc(p->update_msg_mem_pool, length);
|
||||
memcpy(upd_msg->data, data, length);
|
||||
upd_msg->data_size = length;
|
||||
|
||||
add_tail(&p->update_msg_queue, &upd_msg->n);
|
||||
|
||||
/* Save some metadata */
|
||||
struct bgp_proto *bgp = bs->bgp;
|
||||
upd_msg->remote_as = bgp->remote_as;
|
||||
upd_msg->remote_id = bgp->remote_id;
|
||||
upd_msg->remote_ip = bgp->remote_ip;
|
||||
ea_list *bgp = bs->bgp;
|
||||
upd_msg->remote_as = ea_get_int(bgp, &ea_bgp_rem_as, 0);
|
||||
upd_msg->remote_id = ea_get_int(bgp, &ea_bgp_rem_id, 0);
|
||||
upd_msg->remote_ip = ea_get_ip(bgp, &ea_bgp_rem_ip, IPA_NONE);
|
||||
upd_msg->timestamp = timestamp;
|
||||
upd_msg->global_peer = bmp_is_peer_global_instance(bgp);
|
||||
upd_msg->policy = bmp_stream_policy(bs);
|
||||
@ -805,19 +884,19 @@ bmp_route_monitor_put_update(struct bmp_proto *p, struct bmp_stream *bs, const b
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_route_monitor_notify(struct bmp_proto *p, struct bmp_stream *bs,
|
||||
const net_addr *n, const struct rte *new, const struct rte_src *src)
|
||||
bmp_route_monitor_notify(struct bmp_proto *p, struct bgp_proto *bgp_p, struct bmp_stream *bs, const struct rte *new)
|
||||
{
|
||||
bmp_route_monitor_end_of_rib(p, bs);
|
||||
byte buf[BGP_MAX_EXT_MSG_LENGTH];
|
||||
byte *end = bgp_bmp_encode_rte(bs->sender, buf, n, new, src);
|
||||
byte *end = bgp_bmp_encode_rte(bs->sender, bgp_p, buf, new);
|
||||
|
||||
btime delta_t = new ? current_time() - new->lastmod : 0;
|
||||
btime delta_t = new->attrs ? current_time() - new->lastmod : 0;
|
||||
btime timestamp = current_real_time() - delta_t;
|
||||
|
||||
if (end)
|
||||
bmp_route_monitor_put_update(p, bs, buf, end - buf, timestamp);
|
||||
else
|
||||
log(L_WARN "%s: Cannot encode update for %N", p->p.name, n);
|
||||
log(L_WARN "%s: Cannot encode update for %N", p->p.name, new->net);
|
||||
}
|
||||
|
||||
static void
|
||||
@ -855,10 +934,10 @@ bmp_route_monitor_commit(void *p_)
|
||||
static void
|
||||
bmp_route_monitor_end_of_rib(struct bmp_proto *p, struct bmp_stream *bs)
|
||||
{
|
||||
TRACE(D_PACKETS, "Sending END-OF-RIB for %s.%s", bs->bgp->p.name, bs->sender->c.name);
|
||||
TRACE(D_PACKETS, "Sending END-OF-RIB for %s.%s", ea_get_adata(bs->bgp, &ea_name)->data, ea_get_adata(bs->sender, &ea_name)->data);
|
||||
|
||||
byte rx_end_payload[DEFAULT_MEM_BLOCK_SIZE];
|
||||
byte *pos = bgp_create_end_mark_(bs->sender, rx_end_payload + BGP_HEADER_LENGTH);
|
||||
byte *pos = bgp_create_end_mark_ea_(bs->sender, rx_end_payload + BGP_HEADER_LENGTH);
|
||||
memset(rx_end_payload + BGP_MSG_HDR_MARKER_POS, 0xff,
|
||||
BGP_MSG_HDR_MARKER_SIZE); // BGP UPDATE MSG marker
|
||||
put_u16(rx_end_payload + BGP_MSG_HDR_LENGTH_POS, pos - rx_end_payload);
|
||||
@ -868,7 +947,7 @@ bmp_route_monitor_end_of_rib(struct bmp_proto *p, struct bmp_stream *bs)
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_send_peer_down_notif_msg(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
bmp_send_peer_down_notif_msg(struct bmp_proto *p, ea_list *bgp,
|
||||
const byte *data, const size_t data_size)
|
||||
{
|
||||
ASSERT(p->started);
|
||||
@ -878,16 +957,16 @@ bmp_send_peer_down_notif_msg(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
buffer payload
|
||||
= bmp_buffer_alloc(p->buffer_mpool, DEFAULT_MEM_BLOCK_SIZE);
|
||||
bmp_peer_down_notif_msg_serialize(&payload, is_global_instance_peer,
|
||||
bgp->remote_as, bgp->remote_id,
|
||||
remote_caps ? remote_caps->as4_support : bgp->as4_session,
|
||||
bgp->remote_ip, data, data_size);
|
||||
ea_get_int(bgp, &ea_bgp_rem_as, 0), ea_get_int(bgp, &ea_bgp_rem_id, 0),
|
||||
remote_caps ? remote_caps->as4_support : ea_get_int(bgp, &ea_bgp_as4_session, 0),
|
||||
*((ip_addr*)ea_get_adata(bgp, &ea_bgp_rem_ip)->data), data, data_size);
|
||||
bmp_schedule_tx_packet(p, bmp_buffer_data(&payload), bmp_buffer_pos(&payload));
|
||||
|
||||
bmp_buffer_free(&payload);
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_peer_down_(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
bmp_peer_down_(struct bmp_proto *p, ea_list *bgp,
|
||||
int err_class, int err_code, int err_subcode, const byte *data, int length)
|
||||
{
|
||||
if (!p->started)
|
||||
@ -897,7 +976,7 @@ bmp_peer_down_(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
if (!bp)
|
||||
return;
|
||||
|
||||
TRACE(D_STATES, "Peer down for %s", bgp->p.name);
|
||||
TRACE(D_STATES, "Peer down for %s", ea_find(bgp, &ea_name)->u.ad->data);
|
||||
|
||||
uint bmp_code = 0;
|
||||
uint fsm_code = 0;
|
||||
@ -945,14 +1024,6 @@ bmp_peer_down_(struct bmp_proto *p, const struct bgp_proto *bgp,
|
||||
bmp_remove_peer(p, bp);
|
||||
}
|
||||
|
||||
void
|
||||
bmp_peer_down(const struct bgp_proto *bgp,
|
||||
int err_class, int code, int subcode, const byte *data, int length)
|
||||
{
|
||||
struct bmp_proto *p; node *n;
|
||||
WALK_LIST2(p, n, bmp_proto_list, bmp_node)
|
||||
bmp_peer_down_(p, bgp, err_class, code, subcode, data, length);
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_send_termination_msg(struct bmp_proto *p,
|
||||
@ -976,52 +1047,133 @@ bmp_send_termination_msg(struct bmp_proto *p,
|
||||
bmp_buffer_free(&stream);
|
||||
}
|
||||
|
||||
#if 0
|
||||
int
|
||||
bmp_preexport(struct channel *C UNUSED, rte *e)
|
||||
{
|
||||
/* Reject non-direct routes */
|
||||
if (e->src->proto != e->sender->proto)
|
||||
/* Reject non-direct routes. Check if sender proto is the same as proto which created the route.
|
||||
* It assumes that route was created in a protocol.
|
||||
*/
|
||||
struct rt_import_request *req = e->sender->req;
|
||||
struct channel *ch = SKIP_BACK(struct channel, in_req, req);
|
||||
|
||||
struct rte_owner *owner = e->src->owner;
|
||||
struct proto *p = SKIP_BACK(struct proto, sources, owner);
|
||||
if (ch->proto != p)
|
||||
return -1;
|
||||
|
||||
/* Reject non-BGP routes */
|
||||
if (e->sender->channel != &channel_bgp)
|
||||
if (p->proto != &proto_bgp)
|
||||
return -1;
|
||||
|
||||
return 1;
|
||||
}
|
||||
#endif
|
||||
|
||||
static void
|
||||
bmp_rt_notify(struct proto *P, struct channel *c, struct network *net,
|
||||
struct rte *new, struct rte *old)
|
||||
bmp_split_policy(struct bmp_proto *p, const rte *new, const rte *old)
|
||||
{
|
||||
struct bmp_proto *p = (void *) P;
|
||||
rte loc = *(new ?: old);
|
||||
|
||||
struct bgp_channel *src = (void *) (new ?: old)->sender;
|
||||
struct bgp_proto *bgp = (void *) src->c.proto;
|
||||
bool policy = (c->table == src->c.table);
|
||||
struct proto *rte_proto = (struct proto*) SKIP_BACK(struct proto, sources, loc.src->owner);
|
||||
struct bgp_proto *bgp = (struct bgp_proto *) rte_proto;
|
||||
struct bgp_channel *src_ch = SKIP_BACK(struct bgp_channel, c.in_req, loc.sender->req);
|
||||
ASSERT_DIE(src_ch->c.proto == rte_proto); /* No pipes supported for now */
|
||||
|
||||
/*
|
||||
* We assume that we receive peer_up before the first route and peer_down
|
||||
* synchronously with BGP session close. So if bmp_stream exists, the related
|
||||
* BGP session is up and could be accessed. That may not be true in
|
||||
* multithreaded setup.
|
||||
*/
|
||||
|
||||
struct bmp_stream *bs = bmp_find_stream(p, bgp, src->afi, policy);
|
||||
if (!bs)
|
||||
/* Ignore non-BGP routes */
|
||||
if (rte_proto->proto != &proto_bgp)
|
||||
return;
|
||||
|
||||
bmp_route_monitor_notify(p, bs, net->n.addr, new, (new ?: old)->src);
|
||||
/* Checking the pre policy */
|
||||
if (p->monitoring_rib.in_pre_policy)
|
||||
{
|
||||
/* Compute the pre policy attributes */
|
||||
ea_list *new_attrs = new ? ea_strip_to(new->attrs, BIT32_ALL(EALS_PREIMPORT)) : NULL;
|
||||
ea_list *old_attrs = old ? ea_strip_to(old->attrs, BIT32_ALL(EALS_PREIMPORT)) : NULL;
|
||||
|
||||
loc.attrs = new_attrs;
|
||||
|
||||
if (new_attrs != old_attrs)
|
||||
{
|
||||
/* The attributes are actually different, announce the change */
|
||||
if (ea_same(new_attrs, old_attrs))
|
||||
bug("Two attribute sets are same in the attribute cache.");
|
||||
|
||||
struct bmp_stream *bs = bmp_find_stream(p, bgp, src_ch->afi, false);
|
||||
if (bs)
|
||||
{
|
||||
if (bmp_find_peer(p, proto_get_state(bgp->p.id)) == NULL)
|
||||
bug("Bmp got a route which belongs to a channel we do not know yet. It is more complicated state and needs to be implemented."); //TODO
|
||||
|
||||
bmp_route_monitor_notify(p, bgp, bs, &loc);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Checking the post policy */
|
||||
if (p->monitoring_rib.in_post_policy)
|
||||
{
|
||||
/* Compute the post policy attributes */
|
||||
ea_list *new_attrs = new ? ea_normalize(new->attrs, 0) : NULL;
|
||||
ea_list *old_attrs = old ? ea_normalize(old->attrs, 0) : NULL;
|
||||
|
||||
loc.attrs = new_attrs;
|
||||
|
||||
/* TODO: filter only BGP-relevant attributes */
|
||||
|
||||
if ((new_attrs != old_attrs) || ea_same(new_attrs, old_attrs))
|
||||
{
|
||||
/* The attributes are actually different, announce the change */
|
||||
struct bmp_stream *bs = bmp_find_stream(p, bgp, src_ch->afi, true);
|
||||
if (bs)
|
||||
{
|
||||
if (bmp_find_peer(p, proto_get_state(bgp->p.id)) == NULL)
|
||||
bug("Bmp got a route which belongs to a channel we do not know yet. It is more complicated state and needs to be implemented."); //TODO
|
||||
|
||||
bmp_route_monitor_notify(p, bgp, bs, &loc);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_feed_end(struct channel *c)
|
||||
bmp_check_routes(void *bt_)
|
||||
{
|
||||
struct bmp_proto *p = (void *) c->proto;
|
||||
struct bmp_table *bt = (struct bmp_table *)bt_;
|
||||
struct bmp_proto *p = bt->p;
|
||||
|
||||
struct bmp_table *bt = bmp_find_table(p, c->table);
|
||||
if (!bt)
|
||||
return;
|
||||
RT_EXPORT_WALK(&bt->out_req, u)
|
||||
{
|
||||
switch (u->kind)
|
||||
{
|
||||
case RT_EXPORT_STOP:
|
||||
bug("Main table export stopped");
|
||||
|
||||
case RT_EXPORT_FEED:
|
||||
uint oldpos = 0;
|
||||
while ((oldpos < u->feed->count_routes) && !(u->feed->block[oldpos].flags & REF_OBSOLETE))
|
||||
oldpos++;
|
||||
|
||||
/* Send updates one after another */
|
||||
for (uint i = 0; i < oldpos; i++)
|
||||
{
|
||||
rte *new = &u->feed->block[i];
|
||||
bmp_split_policy(p, new, NULL);
|
||||
}
|
||||
break;
|
||||
case RT_EXPORT_UPDATE:
|
||||
bmp_split_policy(p, u->update->new, u->update->old);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
bmp_feed_end(struct rt_export_request *req)
|
||||
{
|
||||
SKIP_BACK_DECLARE(struct bmp_table, bt, out_req, req);
|
||||
|
||||
struct bmp_proto *p = bt->p;
|
||||
|
||||
/*
|
||||
* Unsynced streams are added in one moment during BMP session establishment,
|
||||
@ -1068,10 +1220,24 @@ bmp_startup(struct bmp_proto *p)
|
||||
bmp_buffer_free(&payload);
|
||||
|
||||
/* Send Peer Up messages */
|
||||
struct proto *peer;
|
||||
WALK_LIST(peer, proto_list)
|
||||
if ((peer->proto->class == PROTOCOL_BGP) && (peer->proto_state == PS_UP))
|
||||
bmp_peer_init(p, (struct bgp_proto *) peer);
|
||||
u32 length;
|
||||
PST_LOCKED(ts) /* The size of protos field will never decrease, the inconsistency caused by growing is not important */
|
||||
length = ts->length_states;
|
||||
|
||||
for (u32 i = 0; i < length; i++)
|
||||
{
|
||||
ea_list *proto_attr = proto_get_state(i);
|
||||
if (proto_attr == NULL)
|
||||
continue;
|
||||
|
||||
struct protocol *proto = (struct protocol *) ea_get_ptr(proto_attr, &ea_protocol_type, 0);
|
||||
const int state = ea_get_int(proto_attr, &ea_state, 0);
|
||||
|
||||
if (proto != &proto_bgp || state != PS_UP)
|
||||
continue;
|
||||
|
||||
bmp_peer_init(p, proto_attr);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
@ -1128,7 +1294,7 @@ bmp_connect(struct bmp_proto *p)
|
||||
|
||||
TRACE(D_EVENTS, "Connecting to %I port %u", sk->daddr, sk->dport);
|
||||
|
||||
int rc = sk_open(sk);
|
||||
int rc = sk_open(sk, p->p.loop);
|
||||
|
||||
if (rc < 0)
|
||||
sk_log_error(sk, p->p.name);
|
||||
@ -1151,7 +1317,7 @@ bmp_connected(struct birdsock *sk)
|
||||
bmp_startup(p);
|
||||
}
|
||||
|
||||
/* BMP socket error event - switch from any state to Idle state */
|
||||
/* BMPbmp_startup socket error event - switch from any state to Idle state */
|
||||
static void
|
||||
bmp_sock_err(sock *sk, int err)
|
||||
{
|
||||
@ -1210,6 +1376,54 @@ bmp_postconfig(struct proto_config *CF)
|
||||
cf_error("Station port number not specified");
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
bmp_recip_iteration(struct bmp_proto *p, struct lfjour_item *last_up)
|
||||
{
|
||||
struct proto_pending_update *pupdate = SKIP_BACK(struct proto_pending_update, li, last_up);
|
||||
const byte *tx_open_msg = ea_get_adata(pupdate->proto_attr, &ea_bgp_local_open_msg)->data;
|
||||
|
||||
int id = ea_get_int(pupdate->proto_attr, &ea_proto_id, 0);
|
||||
if (ea_get_int(pupdate->proto_attr, &ea_bgp_local_open_msg_len, 0))
|
||||
{
|
||||
const byte *rx_open_msg = ea_get_adata(pupdate->proto_attr, &ea_bgp_remote_open_msg)->data;
|
||||
int l_len = ea_get_int(pupdate->proto_attr, &ea_bgp_remote_open_msg_len, 0);
|
||||
int r_len = ea_get_int(pupdate->proto_attr, &ea_bgp_remote_open_msg_len, 0);
|
||||
bmp_peer_up_(p, proto_get_state(id), true, tx_open_msg, l_len, rx_open_msg, r_len);
|
||||
}
|
||||
else if (ea_get_int(pupdate->proto_attr, &ea_bgp_close_bmp_set, 0))
|
||||
{
|
||||
struct closing_bgp *closing = (struct closing_bgp *) ea_get_ptr(pupdate->proto_attr, &ea_protocol_type, 0);
|
||||
bmp_peer_down_(p, proto_get_state(id),
|
||||
closing->err_class, closing->err_code, closing->err_subcode, closing->data, closing->length);
|
||||
}
|
||||
lfjour_release(&p->proto_state_reader, last_up);
|
||||
}
|
||||
|
||||
static void
|
||||
fc_for_bmp_recipient(void *_p)
|
||||
{
|
||||
struct bmp_proto *p = _p;
|
||||
|
||||
ASSERT_DIE(birdloop_inside(p->p.loop));
|
||||
|
||||
struct lfjour_item *last_up;
|
||||
while (last_up = lfjour_get(&p->proto_state_reader))
|
||||
bmp_recip_iteration(p, last_up);
|
||||
}
|
||||
|
||||
void
|
||||
create_bmp_recipient(struct bmp_proto *p)
|
||||
{
|
||||
struct lfjour_recipient *r = &p->proto_state_reader;
|
||||
r->event = &p->proto_state_changed;
|
||||
*r->event = (event) { .hook = fc_for_bmp_recipient, .data = p };
|
||||
r->target = birdloop_event_list(p->p.loop);
|
||||
|
||||
proto_states_subscribe(r);
|
||||
p->lf_jour_inited = 1;
|
||||
}
|
||||
|
||||
/** Configuration handle section **/
|
||||
static struct proto *
|
||||
bmp_init(struct proto_config *CF)
|
||||
@ -1218,9 +1432,8 @@ bmp_init(struct proto_config *CF)
|
||||
struct bmp_proto *p = (void *) P;
|
||||
struct bmp_config *cf = (void *) CF;
|
||||
|
||||
P->rt_notify = bmp_rt_notify;
|
||||
P->preexport = bmp_preexport;
|
||||
P->feed_end = bmp_feed_end;
|
||||
if (!bgp_next_hop_ea_class)
|
||||
bgp_next_hop_ea_class = ea_class_find_by_name("bgp_next_hop");
|
||||
|
||||
p->cf = cf;
|
||||
p->local_addr = cf->local_addr;
|
||||
@ -1243,10 +1456,10 @@ bmp_start(struct proto *P)
|
||||
{
|
||||
struct bmp_proto *p = (void *) P;
|
||||
|
||||
p->buffer_mpool = rp_new(P->pool, "BMP Buffer");
|
||||
p->map_mem_pool = rp_new(P->pool, "BMP Map");
|
||||
p->tx_mem_pool = rp_new(P->pool, "BMP Tx");
|
||||
p->update_msg_mem_pool = rp_new(P->pool, "BMP Update");
|
||||
p->buffer_mpool = rp_new(P->pool, proto_domain(&p->p), "BMP Buffer");
|
||||
p->map_mem_pool = rp_new(P->pool, proto_domain(&p->p), "BMP Map");
|
||||
p->tx_mem_pool = rp_new(P->pool, proto_domain(&p->p), "BMP Tx");
|
||||
p->update_msg_mem_pool = rp_new(P->pool, proto_domain(&p->p), "BMP Update");
|
||||
p->tx_ev = ev_new_init(p->p.pool, bmp_fire_tx, p);
|
||||
p->update_ev = ev_new_init(p->p.pool, bmp_route_monitor_commit, p);
|
||||
p->connect_retry_timer = tm_new_init(p->p.pool, bmp_connection_retry, p, 0, 0);
|
||||
@ -1260,10 +1473,11 @@ bmp_start(struct proto *P)
|
||||
init_list(&p->update_msg_queue);
|
||||
p->started = false;
|
||||
p->sock_err = 0;
|
||||
add_tail(&bmp_proto_list, &p->bmp_node);
|
||||
|
||||
tm_start(p->connect_retry_timer, CONNECT_INIT_TIME);
|
||||
|
||||
if (p->lf_jour_inited == 0)
|
||||
create_bmp_recipient(p);
|
||||
return PS_START;
|
||||
}
|
||||
|
||||
@ -1279,7 +1493,6 @@ bmp_shutdown(struct proto *P)
|
||||
}
|
||||
|
||||
p->sock_err = 0;
|
||||
rem_node(&p->bmp_node);
|
||||
|
||||
return PS_DOWN;
|
||||
}
|
||||
@ -1348,7 +1561,6 @@ bmp_show_proto_info(struct proto *P)
|
||||
struct protocol proto_bmp = {
|
||||
.name = "BMP",
|
||||
.template = "bmp%d",
|
||||
.class = PROTOCOL_BMP,
|
||||
.proto_size = sizeof(struct bmp_proto),
|
||||
.config_size = sizeof(struct bmp_config),
|
||||
.postconfig = bmp_postconfig,
|
||||
|
||||
@ -47,7 +47,6 @@ struct bmp_proto;
|
||||
struct bmp_proto {
|
||||
struct proto p; // Parent proto
|
||||
const struct bmp_config *cf; // Shortcut to BMP configuration
|
||||
node bmp_node; // Node in bmp_proto_list
|
||||
|
||||
HASH(struct bmp_peer) peer_map;
|
||||
HASH(struct bmp_stream) stream_map;
|
||||
@ -73,29 +72,38 @@ struct bmp_proto {
|
||||
list update_msg_queue; // Stores all composed BGP UPDATE MSGs
|
||||
bool started; // Flag that stores running status of BMP instance
|
||||
int sock_err; // Last socket error code
|
||||
|
||||
struct lfjour_recipient proto_state_reader; // Reader of protocol states
|
||||
event proto_state_changed;
|
||||
int lf_jour_inited;
|
||||
};
|
||||
|
||||
struct bmp_peer {
|
||||
struct bgp_proto *bgp;
|
||||
ea_list *bgp;
|
||||
struct bmp_peer *next;
|
||||
list streams;
|
||||
};
|
||||
|
||||
struct bmp_stream {
|
||||
node n;
|
||||
struct bgp_proto *bgp;
|
||||
ea_list *bgp;
|
||||
u32 key;
|
||||
bool sync;
|
||||
struct bmp_stream *next;
|
||||
struct bmp_table *table;
|
||||
struct bgp_channel *sender;
|
||||
ea_list *sender;
|
||||
int in_pre_policy;
|
||||
};
|
||||
|
||||
struct bmp_table {
|
||||
struct rtable *table;
|
||||
rtable *table;
|
||||
struct bmp_table *next;
|
||||
struct channel *channel;
|
||||
u32 uc;
|
||||
struct rt_export_request out_req;
|
||||
struct bmp_proto *p;
|
||||
struct rt_export_feeder in_req;
|
||||
event event;
|
||||
atomic_int uc;
|
||||
};
|
||||
|
||||
|
||||
@ -105,7 +113,7 @@ struct bmp_table {
|
||||
* bmp_peer_up - send notification that BGP peer connection is established
|
||||
*/
|
||||
void
|
||||
bmp_peer_up(struct bgp_proto *bgp,
|
||||
bmp_peer_up(struct ea_list *bgp,
|
||||
const byte *tx_open_msg, uint tx_open_length,
|
||||
const byte *rx_open_msg, uint rx_open_length);
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user