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bgpd: rename "struct bgp" variables in mplsvpn
The "struct bgp" variable names in the mplsvpn bgp code do not explicitly say whether they refer to a source or destination BGP instance. Some variable declarations are commented out with "from" and "to" but this does not avoid confusion within the functions. The names of "struct bgp" variables are reused in different functions but their names sometimes refer to a source instance and sometimes to a destination instance. Rename the "struct bgp" variable names to from_bgp and to_bgp. Signed-off-by: Louis Scalbert <louis.scalbert@6wind.com>
This commit is contained in:
Louis Scalbert
parent
88ef29918c
commit
02212dee26
@ -767,7 +767,7 @@ static void unsetsids(struct bgp_path_info *bpi)
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memset(extra->sid, 0, sizeof(extra->sid));
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}
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static bool leak_update_nexthop_valid(struct bgp *bgp, struct bgp_dest *bn,
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static bool leak_update_nexthop_valid(struct bgp *to_bgp, struct bgp_dest *bn,
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struct attr *new_attr, afi_t afi,
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safi_t safi,
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struct bgp_path_info *source_bpi,
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@ -775,7 +775,7 @@ static bool leak_update_nexthop_valid(struct bgp *bgp, struct bgp_dest *bn,
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const struct prefix *p, int debug)
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{
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struct bgp_path_info *bpi_ultimate;
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struct bgp *bgp_nexthop = bgp;
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struct bgp *bgp_nexthop = to_bgp;
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bool nh_valid;
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bpi_ultimate = bgp_get_imported_bpi_ultimate(source_bpi);
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@ -795,15 +795,15 @@ static bool leak_update_nexthop_valid(struct bgp *bgp, struct bgp_dest *bn,
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* TBD do we need to do anything about the
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* 'connected' parameter?
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*/
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nh_valid = bgp_find_or_add_nexthop(bgp, bgp_nexthop, afi, safi,
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bpi, NULL, 0, p);
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nh_valid = bgp_find_or_add_nexthop(to_bgp, bgp_nexthop, afi,
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safi, bpi, NULL, 0, p);
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/*
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* If you are using SRv6 VPN instead of MPLS, it need to check
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* the SID allocation. If the sid is not allocated, the rib
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* will be invalid.
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*/
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if (bgp->srv6_enabled &&
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if (to_bgp->srv6_enabled &&
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(!new_attr->srv6_l3vpn && !new_attr->srv6_vpn)) {
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nh_valid = false;
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}
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@ -820,8 +820,8 @@ static bool leak_update_nexthop_valid(struct bgp *bgp, struct bgp_dest *bn,
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* returns pointer to new bgp_path_info upon success
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*/
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static struct bgp_path_info *
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leak_update(struct bgp *bgp, /* destination bgp instance */
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struct bgp_dest *bn, struct attr *new_attr, /* already interned */
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leak_update(struct bgp *to_bgp, struct bgp_dest *bn,
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struct attr *new_attr, /* already interned */
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afi_t afi, safi_t safi, struct bgp_path_info *source_bpi,
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mpls_label_t *label, uint32_t num_labels, struct bgp *bgp_orig,
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struct prefix *nexthop_orig, int nexthop_self_flag, int debug)
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@ -839,7 +839,7 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (debug)
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zlog_debug(
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"%s: entry: leak-to=%s, p=%pBD, type=%d, sub_type=%d",
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__func__, bgp->name_pretty, bn, source_bpi->type,
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__func__, to_bgp->name_pretty, bn, source_bpi->type,
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source_bpi->sub_type);
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/*
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@ -874,7 +874,7 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (debug) {
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zlog_debug(
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"%s: ->%s(s_flags: 0x%x b_flags: 0x%x): %pFX: Found route, being removed, not leaking",
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__func__, bgp->name_pretty,
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__func__, to_bgp->name_pretty,
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source_bpi->flags, bpi->flags, p);
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}
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return NULL;
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@ -887,7 +887,7 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (debug)
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zlog_debug(
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"%s: ->%s: %pBD: Found route, no change",
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__func__, bgp->name_pretty, bn);
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__func__, to_bgp->name_pretty, bn);
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return NULL;
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}
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@ -905,8 +905,9 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (!ecommunity_cmp(
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bgp_attr_get_ecommunity(bpi->attr),
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bgp_attr_get_ecommunity(new_attr))) {
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vpn_leak_to_vrf_withdraw(bgp, bpi);
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bgp_aggregate_decrement(bgp, p, bpi, afi, safi);
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vpn_leak_to_vrf_withdraw(to_bgp, bpi);
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bgp_aggregate_decrement(to_bgp, p, bpi, afi,
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safi);
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bgp_path_info_delete(bn, bpi);
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}
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}
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@ -918,7 +919,7 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (CHECK_FLAG(bpi->flags, BGP_PATH_REMOVED))
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bgp_path_info_restore(bn, bpi);
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else
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bgp_aggregate_decrement(bgp, p, bpi, afi, safi);
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bgp_aggregate_decrement(to_bgp, p, bpi, afi, safi);
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bgp_attr_unintern(&bpi->attr);
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bpi->attr = new_attr;
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bpi->uptime = bgp_clock();
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@ -961,20 +962,20 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (nexthop_self_flag)
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bgp_path_info_set_flag(bn, bpi, BGP_PATH_ANNC_NH_SELF);
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if (leak_update_nexthop_valid(bgp, bn, new_attr, afi, safi,
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if (leak_update_nexthop_valid(to_bgp, bn, new_attr, afi, safi,
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source_bpi, bpi, p, debug))
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bgp_path_info_set_flag(bn, bpi, BGP_PATH_VALID);
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else
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bgp_path_info_unset_flag(bn, bpi, BGP_PATH_VALID);
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/* Process change. */
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bgp_aggregate_increment(bgp, p, bpi, afi, safi);
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bgp_process(bgp, bn, afi, safi);
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bgp_aggregate_increment(to_bgp, p, bpi, afi, safi);
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bgp_process(to_bgp, bn, afi, safi);
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bgp_dest_unlock_node(bn);
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if (debug)
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zlog_debug("%s: ->%s: %pBD Found route, changed attr",
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__func__, bgp->name_pretty, bn);
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__func__, to_bgp->name_pretty, bn);
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return bpi;
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}
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@ -983,14 +984,14 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (debug) {
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zlog_debug(
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"%s: ->%s(s_flags: 0x%x): %pFX: New route, being removed, not leaking",
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__func__, bgp->name_pretty,
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__func__, to_bgp->name_pretty,
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source_bpi->flags, p);
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}
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return NULL;
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}
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new = info_make(ZEBRA_ROUTE_BGP, BGP_ROUTE_IMPORTED, 0,
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bgp->peer_self, new_attr, bn);
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to_bgp->peer_self, new_attr, bn);
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if (nexthop_self_flag)
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bgp_path_info_set_flag(bn, new, BGP_PATH_ANNC_NH_SELF);
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@ -1032,28 +1033,28 @@ leak_update(struct bgp *bgp, /* destination bgp instance */
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if (nexthop_orig)
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new->extra->nexthop_orig = *nexthop_orig;
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if (leak_update_nexthop_valid(bgp, bn, new_attr, afi, safi, source_bpi,
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new, p, debug))
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if (leak_update_nexthop_valid(to_bgp, bn, new_attr, afi, safi,
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source_bpi, new, p, debug))
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bgp_path_info_set_flag(bn, new, BGP_PATH_VALID);
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else
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bgp_path_info_unset_flag(bn, new, BGP_PATH_VALID);
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bgp_aggregate_increment(bgp, p, new, afi, safi);
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bgp_aggregate_increment(to_bgp, p, new, afi, safi);
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bgp_path_info_add(bn, new);
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bgp_dest_unlock_node(bn);
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bgp_process(bgp, bn, afi, safi);
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bgp_process(to_bgp, bn, afi, safi);
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if (debug)
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zlog_debug("%s: ->%s: %pBD: Added new route", __func__,
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bgp->name_pretty, bn);
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to_bgp->name_pretty, bn);
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return new;
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}
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/* cf vnc_import_bgp_add_route_mode_nvegroup() and add_vnc_route() */
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void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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struct bgp *bgp_vrf, /* from */
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void vpn_leak_from_vrf_update(struct bgp *to_bgp, /* to */
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struct bgp *from_bgp, /* from */
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struct bgp_path_info *path_vrf) /* route */
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{
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int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF);
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@ -1069,7 +1070,7 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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int nexthop_self_flag = 0;
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if (debug)
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zlog_debug("%s: from vrf %s", __func__, bgp_vrf->name_pretty);
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zlog_debug("%s: from vrf %s", __func__, from_bgp->name_pretty);
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if (debug && bgp_attr_get_ecommunity(path_vrf->attr)) {
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char *s = ecommunity_ecom2str(
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@ -1077,11 +1078,11 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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ECOMMUNITY_FORMAT_ROUTE_MAP, 0);
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zlog_debug("%s: %s path_vrf->type=%d, EC{%s}", __func__,
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bgp_vrf->name, path_vrf->type, s);
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from_bgp->name, path_vrf->type, s);
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XFREE(MTYPE_ECOMMUNITY_STR, s);
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}
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if (!bgp_vpn)
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if (!to_bgp)
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return;
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if (!afi) {
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@ -1094,10 +1095,10 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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if (!is_route_injectable_into_vpn(path_vrf))
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return;
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if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) {
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if (!vpn_leak_to_vpn_active(from_bgp, afi, &debugmsg)) {
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if (debug)
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zlog_debug("%s: %s skipping: %s", __func__,
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bgp_vrf->name, debugmsg);
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from_bgp->name, debugmsg);
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return;
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}
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@ -1107,23 +1108,23 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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/*
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* route map handling
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*/
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if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN]) {
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if (from_bgp->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN]) {
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struct bgp_path_info info;
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route_map_result_t ret;
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memset(&info, 0, sizeof(info));
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info.peer = bgp_vpn->peer_self;
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info.peer = to_bgp->peer_self;
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info.attr = &static_attr;
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ret = route_map_apply(
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bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_TOVPN],
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p, &info);
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ret = route_map_apply(from_bgp->vpn_policy[afi]
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.rmap[BGP_VPN_POLICY_DIR_TOVPN],
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p, &info);
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if (RMAP_DENYMATCH == ret) {
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bgp_attr_flush(&static_attr); /* free any added parts */
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if (debug)
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zlog_debug(
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"%s: vrf %s route map \"%s\" says DENY, returning",
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__func__, bgp_vrf->name_pretty,
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bgp_vrf->vpn_policy[afi]
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__func__, from_bgp->name_pretty,
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from_bgp->vpn_policy[afi]
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.rmap[BGP_VPN_POLICY_DIR_TOVPN]
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->name);
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return;
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@ -1151,17 +1152,17 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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old_ecom = bgp_attr_get_ecommunity(&static_attr);
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if (old_ecom) {
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new_ecom = ecommunity_dup(old_ecom);
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if (CHECK_FLAG(bgp_vrf->af_flags[afi][SAFI_UNICAST],
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BGP_CONFIG_VRF_TO_VRF_EXPORT))
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if (CHECK_FLAG(from_bgp->af_flags[afi][SAFI_UNICAST],
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BGP_CONFIG_VRF_TO_VRF_EXPORT))
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ecommunity_strip_rts(new_ecom);
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new_ecom = ecommunity_merge(new_ecom,
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bgp_vrf->vpn_policy[afi]
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.rtlist[BGP_VPN_POLICY_DIR_TOVPN]);
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new_ecom = ecommunity_merge(
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new_ecom, from_bgp->vpn_policy[afi]
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.rtlist[BGP_VPN_POLICY_DIR_TOVPN]);
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if (!old_ecom->refcnt)
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ecommunity_free(&old_ecom);
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} else {
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new_ecom = ecommunity_dup(
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bgp_vrf->vpn_policy[afi]
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from_bgp->vpn_policy[afi]
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.rtlist[BGP_VPN_POLICY_DIR_TOVPN]);
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}
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bgp_attr_set_ecommunity(&static_attr, new_ecom);
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@ -1178,10 +1179,10 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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/* Nexthop */
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/* if policy nexthop not set, use 0 */
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if (CHECK_FLAG(bgp_vrf->vpn_policy[afi].flags,
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if (CHECK_FLAG(from_bgp->vpn_policy[afi].flags,
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BGP_VPN_POLICY_TOVPN_NEXTHOP_SET)) {
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struct prefix *nexthop =
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&bgp_vrf->vpn_policy[afi].tovpn_nexthop;
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&from_bgp->vpn_policy[afi].tovpn_nexthop;
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switch (nexthop->family) {
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case AF_INET:
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@ -1202,7 +1203,7 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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assert(0);
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}
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} else {
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if (!CHECK_FLAG(bgp_vrf->af_flags[afi][SAFI_UNICAST],
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if (!CHECK_FLAG(from_bgp->af_flags[afi][SAFI_UNICAST],
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BGP_CONFIG_VRF_TO_VRF_EXPORT)) {
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if (afi == AFI_IP) {
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/*
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@ -1240,7 +1241,7 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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nexthop_self_flag = 1;
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}
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label_val = bgp_vrf->vpn_policy[afi].tovpn_label;
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label_val = from_bgp->vpn_policy[afi].tovpn_label;
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if (label_val == MPLS_LABEL_NONE) {
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encode_label(MPLS_LABEL_IMPLICIT_NULL, &label);
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} else {
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@ -1249,12 +1250,13 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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/* Set originator ID to "me" */
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SET_FLAG(static_attr.flag, ATTR_FLAG_BIT(BGP_ATTR_ORIGINATOR_ID));
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static_attr.originator_id = bgp_vpn->router_id;
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static_attr.originator_id = to_bgp->router_id;
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/* Set SID for SRv6 VPN */
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if (bgp_vrf->vpn_policy[afi].tovpn_sid_locator) {
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encode_label(bgp_vrf->vpn_policy[afi].tovpn_sid_transpose_label,
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&label);
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if (from_bgp->vpn_policy[afi].tovpn_sid_locator) {
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encode_label(
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from_bgp->vpn_policy[afi].tovpn_sid_transpose_label,
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&label);
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static_attr.srv6_l3vpn = XCALLOC(MTYPE_BGP_SRV6_L3VPN,
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sizeof(struct bgp_attr_srv6_l3vpn));
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static_attr.srv6_l3vpn->sid_flags = 0x00;
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@ -1272,7 +1274,7 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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static_attr.srv6_l3vpn->transposition_offset =
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BGP_PREFIX_SID_SRV6_TRANSPOSITION_OFFSET;
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memcpy(&static_attr.srv6_l3vpn->sid,
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bgp_vrf->vpn_policy[afi].tovpn_sid_locator,
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from_bgp->vpn_policy[afi].tovpn_sid_locator,
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sizeof(struct in6_addr));
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}
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@ -1291,14 +1293,14 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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/* Now new_attr is an allocated interned attr */
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bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p,
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&(bgp_vrf->vpn_policy[afi].tovpn_rd));
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bn = bgp_afi_node_get(to_bgp->rib[afi][safi], afi, safi, p,
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&(from_bgp->vpn_policy[afi].tovpn_rd));
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struct bgp_path_info *new_info;
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new_info =
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leak_update(bgp_vpn, bn, new_attr, afi, safi, path_vrf, &label,
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1, bgp_vrf, NULL, nexthop_self_flag, debug);
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leak_update(to_bgp, bn, new_attr, afi, safi, path_vrf, &label,
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1, from_bgp, NULL, nexthop_self_flag, debug);
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/*
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* Routes actually installed in the vpn RIB must also be
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@ -1310,11 +1312,11 @@ void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, /* to */
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* because of loop checking.
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*/
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if (new_info)
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vpn_leak_to_vrf_update(bgp_vrf, new_info);
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vpn_leak_to_vrf_update(from_bgp, new_info);
|
||||
}
|
||||
|
||||
void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */
|
||||
struct bgp *bgp_vrf, /* from */
|
||||
void vpn_leak_from_vrf_withdraw(struct bgp *to_bgp, /* to */
|
||||
struct bgp *from_bgp, /* from */
|
||||
struct bgp_path_info *path_vrf) /* route */
|
||||
{
|
||||
int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF);
|
||||
@ -1328,11 +1330,11 @@ void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */
|
||||
if (debug) {
|
||||
zlog_debug(
|
||||
"%s: entry: leak-from=%s, p=%pBD, type=%d, sub_type=%d",
|
||||
__func__, bgp_vrf->name_pretty, path_vrf->net,
|
||||
__func__, from_bgp->name_pretty, path_vrf->net,
|
||||
path_vrf->type, path_vrf->sub_type);
|
||||
}
|
||||
|
||||
if (!bgp_vpn)
|
||||
if (!to_bgp)
|
||||
return;
|
||||
|
||||
if (!afi) {
|
||||
@ -1345,7 +1347,7 @@ void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */
|
||||
if (!is_route_injectable_into_vpn(path_vrf))
|
||||
return;
|
||||
|
||||
if (!vpn_leak_to_vpn_active(bgp_vrf, afi, &debugmsg)) {
|
||||
if (!vpn_leak_to_vpn_active(from_bgp, afi, &debugmsg)) {
|
||||
if (debug)
|
||||
zlog_debug("%s: skipping: %s", __func__, debugmsg);
|
||||
return;
|
||||
@ -1354,8 +1356,8 @@ void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */
|
||||
if (debug)
|
||||
zlog_debug("%s: withdrawing (path_vrf=%p)", __func__, path_vrf);
|
||||
|
||||
bn = bgp_afi_node_get(bgp_vpn->rib[afi][safi], afi, safi, p,
|
||||
&(bgp_vrf->vpn_policy[afi].tovpn_rd));
|
||||
bn = bgp_afi_node_get(to_bgp->rib[afi][safi], afi, safi, p,
|
||||
&(from_bgp->vpn_policy[afi].tovpn_rd));
|
||||
|
||||
if (!bn)
|
||||
return;
|
||||
@ -1371,17 +1373,16 @@ void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, /* to */
|
||||
|
||||
if (bpi) {
|
||||
/* withdraw from looped vrfs as well */
|
||||
vpn_leak_to_vrf_withdraw(bgp_vpn, bpi);
|
||||
vpn_leak_to_vrf_withdraw(to_bgp, bpi);
|
||||
|
||||
bgp_aggregate_decrement(bgp_vpn, p, bpi, afi, safi);
|
||||
bgp_aggregate_decrement(to_bgp, p, bpi, afi, safi);
|
||||
bgp_path_info_delete(bn, bpi);
|
||||
bgp_process(bgp_vpn, bn, afi, safi);
|
||||
bgp_process(to_bgp, bn, afi, safi);
|
||||
}
|
||||
bgp_dest_unlock_node(bn);
|
||||
}
|
||||
|
||||
void vpn_leak_from_vrf_withdraw_all(struct bgp *bgp_vpn, /* to */
|
||||
struct bgp *bgp_vrf, /* from */
|
||||
void vpn_leak_from_vrf_withdraw_all(struct bgp *to_bgp, struct bgp *from_bgp,
|
||||
afi_t afi)
|
||||
{
|
||||
int debug = BGP_DEBUG(vpn, VPN_LEAK_FROM_VRF);
|
||||
@ -1389,9 +1390,9 @@ void vpn_leak_from_vrf_withdraw_all(struct bgp *bgp_vpn, /* to */
|
||||
safi_t safi = SAFI_MPLS_VPN;
|
||||
|
||||
/*
|
||||
* Walk vpn table, delete bpi with bgp_orig == bgp_vrf
|
||||
* Walk vpn table, delete bpi with bgp_orig == from_bgp
|
||||
*/
|
||||
for (pdest = bgp_table_top(bgp_vpn->rib[afi][safi]); pdest;
|
||||
for (pdest = bgp_table_top(to_bgp->rib[afi][safi]); pdest;
|
||||
pdest = bgp_route_next(pdest)) {
|
||||
|
||||
struct bgp_table *table;
|
||||
@ -1420,28 +1421,26 @@ void vpn_leak_from_vrf_withdraw_all(struct bgp *bgp_vpn, /* to */
|
||||
continue;
|
||||
if (!bpi->extra)
|
||||
continue;
|
||||
if ((struct bgp *)bpi->extra->bgp_orig
|
||||
== bgp_vrf) {
|
||||
if ((struct bgp *)bpi->extra->bgp_orig ==
|
||||
from_bgp) {
|
||||
/* delete route */
|
||||
if (debug)
|
||||
zlog_debug("%s: deleting it",
|
||||
__func__);
|
||||
/* withdraw from leak-to vrfs as well */
|
||||
vpn_leak_to_vrf_withdraw(bgp_vpn, bpi);
|
||||
vpn_leak_to_vrf_withdraw(to_bgp, bpi);
|
||||
bgp_aggregate_decrement(
|
||||
bgp_vpn,
|
||||
bgp_dest_get_prefix(bn), bpi,
|
||||
afi, safi);
|
||||
to_bgp, bgp_dest_get_prefix(bn),
|
||||
bpi, afi, safi);
|
||||
bgp_path_info_delete(bn, bpi);
|
||||
bgp_process(bgp_vpn, bn, afi, safi);
|
||||
bgp_process(to_bgp, bn, afi, safi);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void vpn_leak_from_vrf_update_all(struct bgp *bgp_vpn, /* to */
|
||||
struct bgp *bgp_vrf, /* from */
|
||||
void vpn_leak_from_vrf_update_all(struct bgp *to_bgp, struct bgp *from_bgp,
|
||||
afi_t afi)
|
||||
{
|
||||
struct bgp_dest *bn;
|
||||
@ -1450,9 +1449,9 @@ void vpn_leak_from_vrf_update_all(struct bgp *bgp_vpn, /* to */
|
||||
|
||||
if (debug)
|
||||
zlog_debug("%s: entry, afi=%d, vrf=%s", __func__, afi,
|
||||
bgp_vrf->name_pretty);
|
||||
from_bgp->name_pretty);
|
||||
|
||||
for (bn = bgp_table_top(bgp_vrf->rib[afi][SAFI_UNICAST]); bn;
|
||||
for (bn = bgp_table_top(from_bgp->rib[afi][SAFI_UNICAST]); bn;
|
||||
bn = bgp_route_next(bn)) {
|
||||
|
||||
if (debug)
|
||||
@ -1464,14 +1463,14 @@ void vpn_leak_from_vrf_update_all(struct bgp *bgp_vpn, /* to */
|
||||
zlog_debug(
|
||||
"%s: calling vpn_leak_from_vrf_update",
|
||||
__func__);
|
||||
vpn_leak_from_vrf_update(bgp_vpn, bgp_vrf, bpi);
|
||||
vpn_leak_from_vrf_update(to_bgp, from_bgp, bpi);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
struct bgp *bgp_vpn, /* from */
|
||||
vpn_leak_to_vrf_update_onevrf(struct bgp *to_bgp, /* to */
|
||||
struct bgp *from_bgp, /* from */
|
||||
struct bgp_path_info *path_vpn) /* route */
|
||||
{
|
||||
const struct prefix *p = bgp_dest_get_prefix(path_vpn->net);
|
||||
@ -1492,7 +1491,7 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
|
||||
int debug = BGP_DEBUG(vpn, VPN_LEAK_TO_VRF);
|
||||
|
||||
if (!vpn_leak_from_vpn_active(bgp_vrf, afi, &debugmsg)) {
|
||||
if (!vpn_leak_from_vpn_active(to_bgp, afi, &debugmsg)) {
|
||||
if (debug)
|
||||
zlog_debug("%s: skipping: %s", __func__, debugmsg);
|
||||
return;
|
||||
@ -1500,18 +1499,18 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
|
||||
/* Check for intersection of route targets */
|
||||
if (!ecom_intersect(
|
||||
bgp_vrf->vpn_policy[afi].rtlist[BGP_VPN_POLICY_DIR_FROMVPN],
|
||||
to_bgp->vpn_policy[afi].rtlist[BGP_VPN_POLICY_DIR_FROMVPN],
|
||||
bgp_attr_get_ecommunity(path_vpn->attr))) {
|
||||
if (debug)
|
||||
zlog_debug(
|
||||
"from vpn (%s) to vrf (%s), skipping after no intersection of route targets",
|
||||
bgp_vpn->name_pretty, bgp_vrf->name_pretty);
|
||||
from_bgp->name_pretty, to_bgp->name_pretty);
|
||||
return;
|
||||
}
|
||||
|
||||
if (debug)
|
||||
zlog_debug("%s: updating %pFX to vrf %s", __func__, p,
|
||||
bgp_vrf->name_pretty);
|
||||
to_bgp->name_pretty);
|
||||
|
||||
/* shallow copy */
|
||||
static_attr = *path_vpn->attr;
|
||||
@ -1521,8 +1520,8 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
|
||||
/* If doing VRF-to-VRF leaking, strip RTs. */
|
||||
old_ecom = bgp_attr_get_ecommunity(&static_attr);
|
||||
if (old_ecom && CHECK_FLAG(bgp_vrf->af_flags[afi][safi],
|
||||
BGP_CONFIG_VRF_TO_VRF_IMPORT)) {
|
||||
if (old_ecom && CHECK_FLAG(to_bgp->af_flags[afi][safi],
|
||||
BGP_CONFIG_VRF_TO_VRF_IMPORT)) {
|
||||
new_ecom = ecommunity_dup(old_ecom);
|
||||
ecommunity_strip_rts(new_ecom);
|
||||
bgp_attr_set_ecommunity(&static_attr, new_ecom);
|
||||
@ -1554,7 +1553,7 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
nexthop_orig.u.prefix4 = path_vpn->attr->mp_nexthop_global_in;
|
||||
nexthop_orig.prefixlen = IPV4_MAX_BITLEN;
|
||||
|
||||
if (CHECK_FLAG(bgp_vrf->af_flags[afi][safi],
|
||||
if (CHECK_FLAG(to_bgp->af_flags[afi][safi],
|
||||
BGP_CONFIG_VRF_TO_VRF_IMPORT)) {
|
||||
static_attr.nexthop.s_addr =
|
||||
nexthop_orig.u.prefix4.s_addr;
|
||||
@ -1571,7 +1570,7 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
nexthop_orig.u.prefix6 = path_vpn->attr->mp_nexthop_global;
|
||||
nexthop_orig.prefixlen = IPV6_MAX_BITLEN;
|
||||
|
||||
if (CHECK_FLAG(bgp_vrf->af_flags[afi][safi],
|
||||
if (CHECK_FLAG(to_bgp->af_flags[afi][safi],
|
||||
BGP_CONFIG_VRF_TO_VRF_IMPORT)) {
|
||||
static_attr.mp_nexthop_global = nexthop_orig.u.prefix6;
|
||||
}
|
||||
@ -1581,15 +1580,15 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
/*
|
||||
* route map handling
|
||||
*/
|
||||
if (bgp_vrf->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_FROMVPN]) {
|
||||
if (to_bgp->vpn_policy[afi].rmap[BGP_VPN_POLICY_DIR_FROMVPN]) {
|
||||
struct bgp_path_info info;
|
||||
route_map_result_t ret;
|
||||
|
||||
memset(&info, 0, sizeof(info));
|
||||
info.peer = bgp_vrf->peer_self;
|
||||
info.peer = to_bgp->peer_self;
|
||||
info.attr = &static_attr;
|
||||
info.extra = path_vpn->extra; /* Used for source-vrf filter */
|
||||
ret = route_map_apply(bgp_vrf->vpn_policy[afi]
|
||||
ret = route_map_apply(to_bgp->vpn_policy[afi]
|
||||
.rmap[BGP_VPN_POLICY_DIR_FROMVPN],
|
||||
p, &info);
|
||||
if (RMAP_DENYMATCH == ret) {
|
||||
@ -1597,8 +1596,8 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
if (debug)
|
||||
zlog_debug(
|
||||
"%s: vrf %s vpn-policy route map \"%s\" says DENY, returning",
|
||||
__func__, bgp_vrf->name_pretty,
|
||||
bgp_vrf->vpn_policy[afi]
|
||||
__func__, to_bgp->name_pretty,
|
||||
to_bgp->vpn_policy[afi]
|
||||
.rmap[BGP_VPN_POLICY_DIR_FROMVPN]
|
||||
->name);
|
||||
return;
|
||||
@ -1614,7 +1613,7 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
new_attr = bgp_attr_intern(&static_attr);
|
||||
bgp_attr_flush(&static_attr);
|
||||
|
||||
bn = bgp_afi_node_get(bgp_vrf->rib[afi][safi], afi, safi, p, NULL);
|
||||
bn = bgp_afi_node_get(to_bgp->rib[afi][safi], afi, safi, p, NULL);
|
||||
|
||||
/*
|
||||
* ensure labels are copied
|
||||
@ -1628,7 +1627,7 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
* labels for these routes enables the non-labeled nexthops
|
||||
* from the originating VRF to be considered valid for this route.
|
||||
*/
|
||||
if (!CHECK_FLAG(bgp_vrf->af_flags[afi][safi],
|
||||
if (!CHECK_FLAG(to_bgp->af_flags[afi][safi],
|
||||
BGP_CONFIG_VRF_TO_VRF_IMPORT)) {
|
||||
/* work back to original route */
|
||||
bpi_ultimate = bgp_get_imported_bpi_ultimate(path_vpn);
|
||||
@ -1666,14 +1665,14 @@ vpn_leak_to_vrf_update_onevrf(struct bgp *bgp_vrf, /* to */
|
||||
if (path_vpn->extra && path_vpn->extra->bgp_orig)
|
||||
src_vrf = path_vpn->extra->bgp_orig;
|
||||
else
|
||||
src_vrf = bgp_vpn;
|
||||
src_vrf = from_bgp;
|
||||
|
||||
leak_update(bgp_vrf, bn, new_attr, afi, safi, path_vpn, pLabels,
|
||||
leak_update(to_bgp, bn, new_attr, afi, safi, path_vpn, pLabels,
|
||||
num_labels, src_vrf, &nexthop_orig, nexthop_self_flag,
|
||||
debug);
|
||||
}
|
||||
|
||||
void vpn_leak_to_vrf_update(struct bgp *bgp_vpn, /* from */
|
||||
void vpn_leak_to_vrf_update(struct bgp *from_bgp, /* from */
|
||||
struct bgp_path_info *path_vpn) /* route */
|
||||
{
|
||||
struct listnode *mnode, *mnnode;
|
||||
@ -1689,12 +1688,12 @@ void vpn_leak_to_vrf_update(struct bgp *bgp_vpn, /* from */
|
||||
|
||||
if (!path_vpn->extra
|
||||
|| path_vpn->extra->bgp_orig != bgp) { /* no loop */
|
||||
vpn_leak_to_vrf_update_onevrf(bgp, bgp_vpn, path_vpn);
|
||||
vpn_leak_to_vrf_update_onevrf(bgp, from_bgp, path_vpn);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void vpn_leak_to_vrf_withdraw(struct bgp *bgp_vpn, /* from */
|
||||
void vpn_leak_to_vrf_withdraw(struct bgp *from_bgp, /* from */
|
||||
struct bgp_path_info *path_vpn) /* route */
|
||||
{
|
||||
const struct prefix *p;
|
||||
@ -1778,8 +1777,7 @@ void vpn_leak_to_vrf_withdraw(struct bgp *bgp_vpn, /* from */
|
||||
}
|
||||
}
|
||||
|
||||
void vpn_leak_to_vrf_withdraw_all(struct bgp *bgp_vrf, /* to */
|
||||
afi_t afi)
|
||||
void vpn_leak_to_vrf_withdraw_all(struct bgp *to_bgp, afi_t afi)
|
||||
{
|
||||
struct bgp_dest *bn;
|
||||
struct bgp_path_info *bpi;
|
||||
@ -1791,40 +1789,38 @@ void vpn_leak_to_vrf_withdraw_all(struct bgp *bgp_vrf, /* to */
|
||||
/*
|
||||
* Walk vrf table, delete bpi with bgp_orig in a different vrf
|
||||
*/
|
||||
for (bn = bgp_table_top(bgp_vrf->rib[afi][safi]); bn;
|
||||
for (bn = bgp_table_top(to_bgp->rib[afi][safi]); bn;
|
||||
bn = bgp_route_next(bn)) {
|
||||
|
||||
for (bpi = bgp_dest_get_bgp_path_info(bn); bpi;
|
||||
bpi = bpi->next) {
|
||||
if (bpi->extra
|
||||
&& bpi->extra->bgp_orig != bgp_vrf
|
||||
&& bpi->extra->parent
|
||||
&& is_pi_family_vpn(bpi->extra->parent)) {
|
||||
if (bpi->extra && bpi->extra->bgp_orig != to_bgp &&
|
||||
bpi->extra->parent &&
|
||||
is_pi_family_vpn(bpi->extra->parent)) {
|
||||
|
||||
/* delete route */
|
||||
bgp_aggregate_decrement(bgp_vrf,
|
||||
bgp_aggregate_decrement(to_bgp,
|
||||
bgp_dest_get_prefix(bn),
|
||||
bpi, afi, safi);
|
||||
bgp_path_info_delete(bn, bpi);
|
||||
bgp_process(bgp_vrf, bn, afi, safi);
|
||||
bgp_process(to_bgp, bn, afi, safi);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void vpn_leak_to_vrf_update_all(struct bgp *bgp_vrf, /* to */
|
||||
struct bgp *bgp_vpn, /* from */
|
||||
void vpn_leak_to_vrf_update_all(struct bgp *to_bgp, struct bgp *vpn_from,
|
||||
afi_t afi)
|
||||
{
|
||||
struct bgp_dest *pdest;
|
||||
safi_t safi = SAFI_MPLS_VPN;
|
||||
|
||||
assert(bgp_vpn);
|
||||
assert(vpn_from);
|
||||
|
||||
/*
|
||||
* Walk vpn table
|
||||
*/
|
||||
for (pdest = bgp_table_top(bgp_vpn->rib[afi][safi]); pdest;
|
||||
for (pdest = bgp_table_top(vpn_from->rib[afi][safi]); pdest;
|
||||
pdest = bgp_route_next(pdest)) {
|
||||
struct bgp_table *table;
|
||||
struct bgp_dest *bn;
|
||||
@ -1841,11 +1837,11 @@ void vpn_leak_to_vrf_update_all(struct bgp *bgp_vrf, /* to */
|
||||
for (bpi = bgp_dest_get_bgp_path_info(bn); bpi;
|
||||
bpi = bpi->next) {
|
||||
|
||||
if (bpi->extra
|
||||
&& bpi->extra->bgp_orig == bgp_vrf)
|
||||
if (bpi->extra &&
|
||||
bpi->extra->bgp_orig == to_bgp)
|
||||
continue;
|
||||
|
||||
vpn_leak_to_vrf_update_onevrf(bgp_vrf, bgp_vpn,
|
||||
vpn_leak_to_vrf_update_onevrf(to_bgp, vpn_from,
|
||||
bpi);
|
||||
}
|
||||
}
|
||||
|
||||
@ -53,27 +53,27 @@ extern int bgp_show_mpls_vpn(struct vty *vty, afi_t afi, struct prefix_rd *prd,
|
||||
enum bgp_show_type type, void *output_arg,
|
||||
int tags, bool use_json);
|
||||
|
||||
extern void vpn_leak_from_vrf_update(struct bgp *bgp_vpn, struct bgp *bgp_vrf,
|
||||
extern void vpn_leak_from_vrf_update(struct bgp *to_bgp, struct bgp *from_bgp,
|
||||
struct bgp_path_info *path_vrf);
|
||||
|
||||
extern void vpn_leak_from_vrf_withdraw(struct bgp *bgp_vpn, struct bgp *bgp_vrf,
|
||||
extern void vpn_leak_from_vrf_withdraw(struct bgp *to_bgp, struct bgp *from_bgp,
|
||||
struct bgp_path_info *path_vrf);
|
||||
|
||||
extern void vpn_leak_from_vrf_withdraw_all(struct bgp *bgp_vpn,
|
||||
struct bgp *bgp_vrf, afi_t afi);
|
||||
extern void vpn_leak_from_vrf_withdraw_all(struct bgp *to_bgp,
|
||||
struct bgp *from_bgp, afi_t afi);
|
||||
|
||||
extern void vpn_leak_from_vrf_update_all(struct bgp *bgp_vpn,
|
||||
struct bgp *bgp_vrf, afi_t afi);
|
||||
extern void vpn_leak_from_vrf_update_all(struct bgp *to_bgp,
|
||||
struct bgp *from_bgp, afi_t afi);
|
||||
|
||||
extern void vpn_leak_to_vrf_withdraw_all(struct bgp *bgp_vrf, afi_t afi);
|
||||
extern void vpn_leak_to_vrf_withdraw_all(struct bgp *to_bgp, afi_t afi);
|
||||
|
||||
extern void vpn_leak_to_vrf_update_all(struct bgp *bgp_vrf, struct bgp *bgp_vpn,
|
||||
extern void vpn_leak_to_vrf_update_all(struct bgp *to_bgp, struct bgp *from_bgp,
|
||||
afi_t afi);
|
||||
|
||||
extern void vpn_leak_to_vrf_update(struct bgp *bgp_vpn,
|
||||
extern void vpn_leak_to_vrf_update(struct bgp *from_bgp,
|
||||
struct bgp_path_info *path_vpn);
|
||||
|
||||
extern void vpn_leak_to_vrf_withdraw(struct bgp *bgp_vpn,
|
||||
extern void vpn_leak_to_vrf_withdraw(struct bgp *from_bgp,
|
||||
struct bgp_path_info *path_vpn);
|
||||
|
||||
extern void vpn_leak_zebra_vrf_label_update(struct bgp *bgp, afi_t afi);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user