diff options
Diffstat (limited to 'proto/bgp/packets.c')
-rw-r--r-- | proto/bgp/packets.c | 84 |
1 files changed, 51 insertions, 33 deletions
diff --git a/proto/bgp/packets.c b/proto/bgp/packets.c index 66f243bd..ee98115d 100644 --- a/proto/bgp/packets.c +++ b/proto/bgp/packets.c @@ -167,7 +167,6 @@ bgp_create_notification(struct bgp_conn *conn, byte *buf) buf[0] = conn->notify_code; buf[1] = conn->notify_subcode; memcpy(buf+2, conn->notify_data, conn->notify_size); - bmp_peer_down(p, BE_NONE, buf, conn->notify_size + 2); return buf + 2 + conn->notify_size; } @@ -777,6 +776,14 @@ err: } static byte * +bgp_copy_open(struct bgp_proto *p, const byte *pkt, uint len) +{ + char *buf = mb_alloc(p->p.pool, len - BGP_HEADER_LENGTH); + memcpy(buf, pkt + BGP_HEADER_LENGTH, len - BGP_HEADER_LENGTH); + return buf; +} + +static byte * bgp_create_open(struct bgp_conn *conn, byte *buf) { struct bgp_proto *p = conn->bgp; @@ -850,6 +857,9 @@ bgp_rx_open(struct bgp_conn *conn, byte *pkt, uint len) id = get_u32(pkt+24); BGP_TRACE(D_PACKETS, "Got OPEN(as=%d,hold=%d,id=%R)", asn, hold, id); + conn->remote_open_msg = bgp_copy_open(p, pkt, len); + conn->remote_open_length = len - BGP_HEADER_LENGTH; + if (bgp_read_options(conn, pkt+29, pkt[28], len-29) < 0) return; @@ -981,7 +991,6 @@ bgp_rx_open(struct bgp_conn *conn, byte *pkt, uint len) bgp_schedule_packet(conn, NULL, PKT_KEEPALIVE); bgp_start_timer(conn->hold_timer, conn->hold_time); bgp_conn_enter_openconfirm_state(conn); - bmp_put_recv_bgp_open_msg(p, pkt, len); } @@ -2419,15 +2428,20 @@ bgp_create_update_bmp(struct bgp_channel *c, byte *buf, struct bgp_bucket *buck, { struct bgp_proto *p = (void *) c->c.proto; byte *end = buf + (BGP_MAX_EXT_MSG_LENGTH - BGP_HEADER_LENGTH); + byte *res = NULL; /* FIXME: must be a bit shorter */ + struct lp_state tmpp; + lp_save(tmp_linpool, &tmpp); + struct bgp_caps *peer = p->conn->remote_caps; const struct bgp_af_caps *rem = bgp_find_af_caps(peer, c->afi); + struct bgp_write_state s = { .proto = p, .channel = c, .pool = tmp_linpool, - .mp_reach = (c->afi != BGP_AF_IPV4) || rem->ext_next_hop, + .mp_reach = (c->afi != BGP_AF_IPV4) || (rem && rem->ext_next_hop), .as4_session = 1, .add_path = c->add_path_rx, .mpls = c->desc->mpls, @@ -2436,16 +2450,20 @@ bgp_create_update_bmp(struct bgp_channel *c, byte *buf, struct bgp_bucket *buck, if (!update) { - return !s.mp_reach ? + res = !s.mp_reach ? bgp_create_ip_unreach(&s, buck, buf, end): bgp_create_mp_unreach(&s, buck, buf, end); } else { - return !s.mp_reach ? + res = !s.mp_reach ? bgp_create_ip_reach(&s, buck, buf, end): bgp_create_mp_reach(&s, buck, buf, end); } + + lp_restore(tmp_linpool, &tmpp); + + return res; } static byte * @@ -2458,14 +2476,11 @@ bgp_bmp_prepare_bgp_hdr(byte *buf, const u16 msg_size, const u8 msg_type) return buf + BGP_MSG_HDR_TYPE_POS + BGP_MSG_HDR_TYPE_SIZE; } -void -bgp_rte_update_in_notify(struct channel *C, const net_addr *n, - const struct rte *new, const struct rte_src *src) +byte * +bgp_bmp_encode_rte(struct bgp_channel *c, byte *buf, const net_addr *n, + const struct rte *new, const struct rte_src *src) { -// struct bgp_proto *p = (void *) C->proto; - struct bgp_channel *c = (void *) C; - - byte buf[BGP_MAX_EXT_MSG_LENGTH]; +// struct bgp_proto *p = (void *) c->c.proto; byte *pkt = buf + BGP_HEADER_LENGTH; ea_list *attrs = new ? new->attrs->eattrs : NULL; @@ -2489,11 +2504,11 @@ bgp_rte_update_in_notify(struct channel *C, const net_addr *n, add_tail(&b->prefixes, &px->buck_node); byte *end = bgp_create_update_bmp(c, pkt, b, !!new); - if (!end) - return; - bgp_bmp_prepare_bgp_hdr(buf, end - buf, PKT_UPDATE); - bmp_route_monitor_put_update_in_pre_msg(buf, end - buf); + if (end) + bgp_bmp_prepare_bgp_hdr(buf, end - buf, PKT_UPDATE); + + return end; } #endif /* CONFIG_BMP */ @@ -2600,6 +2615,14 @@ bgp_create_mp_end_mark(struct bgp_channel *c, byte *buf) } byte * +bgp_create_end_mark_(struct bgp_channel *c, byte *buf) +{ + return (c->afi == BGP_AF_IPV4) ? + bgp_create_ip_end_mark(c, buf): + bgp_create_mp_end_mark(c, buf); +} + +static byte * bgp_create_end_mark(struct bgp_channel *c, byte *buf) { struct bgp_proto *p = (void *) c->c.proto; @@ -2607,9 +2630,7 @@ bgp_create_end_mark(struct bgp_channel *c, byte *buf) BGP_TRACE(D_PACKETS, "Sending END-OF-RIB"); p->stats.tx_updates++; - return (c->afi == BGP_AF_IPV4) ? - bgp_create_ip_end_mark(c, buf): - bgp_create_mp_end_mark(c, buf); + return bgp_create_end_mark_(c, buf); } static inline void @@ -2750,8 +2771,6 @@ bgp_rx_update(struct bgp_conn *conn, byte *pkt, uint len) s.ip_reach_len = len - pos; s.ip_reach_nlri = pkt + pos; - bmp_route_monitor_update_in_pre_begin(); - if (s.attr_len) ea = bgp_decode_attrs(&s, s.attrs, s.attr_len); else @@ -2782,9 +2801,6 @@ bgp_rx_update(struct bgp_conn *conn, byte *pkt, uint len) bgp_decode_nlri(&s, s.mp_reach_af, s.mp_reach_nlri, s.mp_reach_len, ea, s.mp_next_hop_data, s.mp_next_hop_len); - bmp_route_monitor_update_in_pre_commit(p); - bmp_route_monitor_update_in_pre_end(); - done: rta_free(s.cached_rta); lp_restore(tmp_linpool, &tmpp); @@ -2988,7 +3004,7 @@ bgp_send(struct bgp_conn *conn, uint type, uint len) conn->bgp->stats.tx_messages++; conn->bgp->stats.tx_bytes += len; - memset(buf, 0xff, 16); /* Marker */ + memset(buf, 0xff, BGP_HDR_MARKER_LENGTH); put_u16(buf+16, len); buf[18] = type; @@ -3036,12 +3052,11 @@ bgp_fire_tx(struct bgp_conn *conn) { conn->packets_to_send &= ~(1 << PKT_OPEN); end = bgp_create_open(conn, pkt); - int rv = bgp_send(conn, PKT_OPEN, end - buf); - if (rv >= 0) - { - bmp_put_sent_bgp_open_msg(p, pkt, end - buf); - } - return rv; + + conn->local_open_msg = bgp_copy_open(p, buf, end - buf); + conn->local_open_length = end - buf - BGP_HEADER_LENGTH; + + return bgp_send(conn, PKT_OPEN, end - buf); } else if (s & (1 << PKT_KEEPALIVE)) { @@ -3322,6 +3337,11 @@ bgp_rx_notification(struct bgp_conn *conn, byte *pkt, uint len) bgp_log_error(p, BE_BGP_RX, "Received", code, subcode, pkt+21, len-21); bgp_store_error(p, conn, BE_BGP_RX, (code << 16) | subcode); + conn->notify_code = code; + conn->notify_subcode = subcode; + conn->notify_data = pkt+21; + conn->notify_size = len-21; + bgp_conn_enter_close_state(conn); bgp_schedule_packet(conn, NULL, PKT_SCHEDULE_CLOSE); @@ -3340,8 +3360,6 @@ bgp_rx_notification(struct bgp_conn *conn, byte *pkt, uint len) p->p.disabled = 1; } } - - bmp_peer_down(p, BE_NONE, pkt, len); } static void |