BGP: Report capabilities in show protocols all
This commit is contained in:
Ondrej Zajicek (work)
parent
eeba61ccd5
commit
256cc8ee08
125
proto/bgp/bgp.c
125
proto/bgp/bgp.c
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@ -1756,11 +1756,118 @@ bgp_get_status(struct proto *P, byte *buf)
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bsprintf(buf, "%-14s%s%s", bgp_state_dsc(p), err1, err2);
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}
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static void
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bgp_show_afis(int code, char *s, u32 *afis, uint count)
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{
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buffer b;
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LOG_BUFFER_INIT(b);
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buffer_puts(&b, s);
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for (u32 *af = afis; af < (afis + count); af++)
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{
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const struct bgp_af_desc *desc = bgp_get_af_desc(*af);
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if (desc)
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buffer_print(&b, " %s", desc->name);
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else
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buffer_print(&b, " <%u/%u>", BGP_AFI(*af), BGP_SAFI(*af));
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}
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if (b.pos == b.end)
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strcpy(b.end - 32, " ... <too long>");
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cli_msg(code, b.start);
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}
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static void
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bgp_show_capabilities(struct bgp_proto *p UNUSED, struct bgp_caps *caps)
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{
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struct bgp_af_caps *ac;
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uint any_mp_bgp = 0;
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uint any_gr_able = 0;
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uint any_add_path = 0;
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u32 *afl1 = alloca(caps->af_count * sizeof(u32));
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u32 *afl2 = alloca(caps->af_count * sizeof(u32));
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uint afn1, afn2;
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WALK_AF_CAPS(caps, ac)
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{
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any_mp_bgp |= ac->ready;
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any_gr_able |= ac->gr_able;
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any_add_path |= ac->add_path;
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}
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if (any_mp_bgp)
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{
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cli_msg(-1006, " Multiprotocol");
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afn1 = 0;
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WALK_AF_CAPS(caps, ac)
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if (ac->ready)
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afl1[afn1++] = ac->afi;
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bgp_show_afis(-1006, " AF announced:", afl1, afn1);
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}
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if (caps->route_refresh)
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cli_msg(-1006, " Route refresh");
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if (caps->ext_messages)
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cli_msg(-1006, " Extended message");
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if (caps->gr_aware)
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cli_msg(-1006, " Graceful restart");
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if (any_gr_able)
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{
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/* Continues from gr_aware */
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cli_msg(-1006, " Restart time: %u", caps->gr_time);
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if (caps->gr_flags & BGP_GRF_RESTART)
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cli_msg(-1006, " Restart recovery");
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afn1 = afn2 = 0;
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WALK_AF_CAPS(caps, ac)
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{
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if (ac->gr_able)
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afl1[afn1++] = ac->afi;
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if (ac->gr_af_flags & BGP_GRF_FORWARDING)
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afl2[afn2++] = ac->afi;
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}
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bgp_show_afis(-1006, " AF supported:", afl1, afn1);
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bgp_show_afis(-1006, " AF preserved:", afl2, afn2);
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}
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if (caps->as4_support)
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cli_msg(-1006, " 4-octet AS numbers");
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if (any_add_path)
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{
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cli_msg(-1006, " ADD-PATH");
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afn1 = afn2 = 0;
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WALK_AF_CAPS(caps, ac)
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{
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if (ac->add_path & BGP_ADD_PATH_RX)
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afl1[afn1++] = ac->afi;
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if (ac->add_path & BGP_ADD_PATH_TX)
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afl2[afn2++] = ac->afi;
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}
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bgp_show_afis(-1006, " RX:", afl1, afn1);
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bgp_show_afis(-1006, " TX:", afl2, afn2);
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}
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if (caps->enhanced_refresh)
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cli_msg(-1006, " Enhanced refresh");
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}
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static void
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bgp_show_proto_info(struct proto *P)
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{
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struct bgp_proto *p = (struct bgp_proto *) P;
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struct bgp_conn *c = p->conn;
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cli_msg(-1006, " BGP state: %s", bgp_state_dsc(p));
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cli_msg(-1006, " Neighbor address: %I%J", p->cf->remote_ip, p->cf->iface);
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@ -1789,15 +1896,11 @@ bgp_show_proto_info(struct proto *P)
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else if (P->proto_state == PS_UP)
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{
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cli_msg(-1006, " Neighbor ID: %R", p->remote_id);
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cli_msg(-1006, " Local capabilities");
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bgp_show_capabilities(p, p->conn->local_caps);
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cli_msg(-1006, " Neighbor capabilities");
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bgp_show_capabilities(p, p->conn->remote_caps);
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/* XXXX
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cli_msg(-1006, " Neighbor caps: %s%s%s%s%s%s%s",
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c->peer_refresh_support ? " refresh" : "",
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c->peer_enhanced_refresh_support ? " enhanced-refresh" : "",
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c->peer_gr_able ? " restart-able" : (c->peer_gr_aware ? " restart-aware" : ""),
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c->peer_as4_support ? " AS4" : "",
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(c->peer_add_path & ADD_PATH_RX) ? " add-path-rx" : "",
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(c->peer_add_path & ADD_PATH_TX) ? " add-path-tx" : "",
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c->peer_ext_messages_support ? " ext-messages" : "");
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cli_msg(-1006, " Session: %s%s%s%s%s%s%s%s",
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p->is_internal ? "internal" : "external",
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p->cf->multihop ? " multihop" : "",
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@ -1810,9 +1913,9 @@ bgp_show_proto_info(struct proto *P)
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*/
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cli_msg(-1006, " Source address: %I", p->source_addr);
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cli_msg(-1006, " Hold timer: %d/%d",
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tm_remains(c->hold_timer), c->hold_time);
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tm_remains(p->conn->hold_timer), p->conn->hold_time);
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cli_msg(-1006, " Keepalive timer: %d/%d",
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tm_remains(c->keepalive_timer), c->keepalive_time);
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tm_remains(p->conn->keepalive_timer), p->conn->keepalive_time);
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}
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if ((p->last_error_class != BE_NONE) &&
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@ -174,6 +174,10 @@ struct bgp_caps {
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struct bgp_af_caps af_data[0]; /* Per-AF capability data */
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};
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#define WALK_AF_CAPS(caps,ac) \
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for (ac = caps->af_data; ac < &caps->af_data[caps->af_count]; ac++)
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struct bgp_socket {
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node n; /* Node in global bgp_sockets */
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sock *sk; /* Real listening socket */
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@ -185,9 +185,6 @@ bgp_create_notification(struct bgp_conn *conn, byte *buf)
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/* Capability negotiation as per RFC 5492 */
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#define WALK_AF_CAPS(caps,ac) \
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for (ac = caps->af_data; ac < &caps->af_data[caps->af_count]; ac++)
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const struct bgp_af_caps *
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bgp_find_af_caps(struct bgp_caps *caps, u32 afi)
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{
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