diff options
| -rw-r--r-- | bgpd/bgp_vty.c | 67 | ||||
| -rw-r--r-- | bgpd/bgpd.h | 1 |
2 files changed, 68 insertions, 0 deletions
diff --git a/bgpd/bgp_vty.c b/bgpd/bgp_vty.c index ccf198c392..1be44adde8 100644 --- a/bgpd/bgp_vty.c +++ b/bgpd/bgp_vty.c @@ -9183,6 +9183,63 @@ ALIAS (af_rd_vpn_export, "Between current address-family and vpn\n" "For routes leaked from current address-family to vpn\n") +DEFPY(af_label_vpn_export_allocation_mode, + af_label_vpn_export_allocation_mode_cmd, + "[no$no] label vpn export allocation-mode <per-vrf$label_per_vrf|per-nexthop$label_per_nh>", + NO_STR + "label value for VRF\n" + "Between current address-family and vpn\n" + "For routes leaked from current address-family to vpn\n" + "Label allocation mode\n" + "Allocate one label for all BGP updates of the VRF\n" + "Allocate a label per connected next-hop in the VRF\n") +{ + VTY_DECLVAR_CONTEXT(bgp, bgp); + afi_t afi; + bool old_per_nexthop, new_per_nexthop; + + afi = vpn_policy_getafi(vty, bgp, false); + + old_per_nexthop = !!CHECK_FLAG(bgp->vpn_policy[afi].flags, + BGP_VPN_POLICY_TOVPN_LABEL_PER_NEXTHOP); + if (no) { + if (old_per_nexthop == false && label_per_nh) + return CMD_ERR_NO_MATCH; + if (old_per_nexthop == true && label_per_vrf) + return CMD_ERR_NO_MATCH; + new_per_nexthop = false; + } else { + if (label_per_nh) + new_per_nexthop = true; + else + new_per_nexthop = false; + } + + /* no change */ + if (old_per_nexthop == new_per_nexthop) + return CMD_SUCCESS; + + /* + * pre-change: un-export vpn routes (vpn->vrf routes unaffected) + */ + vpn_leak_prechange(BGP_VPN_POLICY_DIR_TOVPN, afi, bgp_get_default(), + bgp); + + if (new_per_nexthop) + SET_FLAG(bgp->vpn_policy[afi].flags, + BGP_VPN_POLICY_TOVPN_LABEL_PER_NEXTHOP); + else + UNSET_FLAG(bgp->vpn_policy[afi].flags, + BGP_VPN_POLICY_TOVPN_LABEL_PER_NEXTHOP); + + /* post-change: re-export vpn routes */ + vpn_leak_postchange(BGP_VPN_POLICY_DIR_TOVPN, afi, bgp_get_default(), + bgp); + + hook_call(bgp_snmp_update_last_changed, bgp); + return CMD_SUCCESS; +} + DEFPY (af_label_vpn_export, af_label_vpn_export_cmd, "[no] label vpn export <(0-1048575)$label_val|auto$label_auto>", @@ -17300,6 +17357,12 @@ static void bgp_vpn_policy_config_write_afi(struct vty *vty, struct bgp *bgp, } } + if (CHECK_FLAG(bgp->vpn_policy[afi].flags, + BGP_VPN_POLICY_TOVPN_LABEL_PER_NEXTHOP)) + vty_out(vty, + "%*slabel vpn export allocation-mode per-nexthop\n", + indent, ""); + tovpn_sid_index = bgp->vpn_policy[afi].tovpn_sid_index; if (CHECK_FLAG(bgp->vpn_policy[afi].flags, BGP_VPN_POLICY_TOVPN_SID_AUTO)) { @@ -20473,6 +20536,10 @@ void bgp_vty_init(void) install_element(BGP_IPV6_NODE, &af_rd_vpn_export_cmd); install_element(BGP_IPV4_NODE, &af_label_vpn_export_cmd); install_element(BGP_IPV6_NODE, &af_label_vpn_export_cmd); + install_element(BGP_IPV4_NODE, + &af_label_vpn_export_allocation_mode_cmd); + install_element(BGP_IPV6_NODE, + &af_label_vpn_export_allocation_mode_cmd); install_element(BGP_IPV4_NODE, &af_nexthop_vpn_export_cmd); install_element(BGP_IPV6_NODE, &af_nexthop_vpn_export_cmd); install_element(BGP_IPV4_NODE, &af_rt_vpn_imexport_cmd); diff --git a/bgpd/bgpd.h b/bgpd/bgpd.h index c3cb6ba91e..3e1de5afc8 100644 --- a/bgpd/bgpd.h +++ b/bgpd/bgpd.h @@ -211,6 +211,7 @@ struct vpn_policy { #define BGP_VPN_POLICY_TOVPN_RD_SET (1 << 1) #define BGP_VPN_POLICY_TOVPN_NEXTHOP_SET (1 << 2) #define BGP_VPN_POLICY_TOVPN_SID_AUTO (1 << 3) +#define BGP_VPN_POLICY_TOVPN_LABEL_PER_NEXTHOP (1 << 4) /* * If we are importing another vrf into us keep a list of |