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We need to track the state information in staticd of what we think the route is. Add the enum for this state and place it into the si. Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/*
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* STATICd - static routes header
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* Copyright (C) 2018 Cumulus Networks, Inc.
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* Donald Sharp
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __STATIC_ROUTES_H__
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#define __STATIC_ROUTES_H__
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#include "lib/mpls.h"
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/* Static route label information */
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struct static_nh_label {
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uint8_t num_labels;
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uint8_t reserved[3];
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mpls_label_t label[MPLS_MAX_LABELS];
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};
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enum static_blackhole_type {
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STATIC_BLACKHOLE_DROP = 0,
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STATIC_BLACKHOLE_NULL,
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STATIC_BLACKHOLE_REJECT
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};
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typedef enum {
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STATIC_IFNAME,
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STATIC_IPV4_GATEWAY,
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STATIC_IPV4_GATEWAY_IFNAME,
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STATIC_BLACKHOLE,
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STATIC_IPV6_GATEWAY,
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STATIC_IPV6_GATEWAY_IFNAME,
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} static_types;
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/*
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* Route Creation gives us:
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* START -> Initial State, only exit is when we send the route to
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* zebra for installation
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* When we send the route to Zebra move to SENT_TO_ZEBRA
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* SENT_TO_ZEBRA -> A way to notice that we've sent the route to zebra
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* But have not received a response on it's status yet
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* After The response from zebra we move to INSTALLED or FAILED
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* INSTALLED -> Route was accepted
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* FAILED -> Route was rejected
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* When we receive notification about a nexthop that a route uses
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* We move the route back to START and initiate the process again.
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*/
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enum static_install_states {
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STATIC_START,
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STATIC_SENT_TO_ZEBRA,
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STATIC_INSTALLED,
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STATIC_NOT_INSTALLED,
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};
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/* Static route information. */
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struct static_route {
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/* For linked list. */
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struct static_route *prev;
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struct static_route *next;
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/* VRF identifier. */
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vrf_id_t vrf_id;
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vrf_id_t nh_vrf_id;
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char nh_vrfname[VRF_NAMSIZ + 1];
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/*
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* States that we walk the route through
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* To know where we are.
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*/
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enum static_install_states state;
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/* Administrative distance. */
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uint8_t distance;
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/* Tag */
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route_tag_t tag;
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/* Flag for this static route's type. */
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static_types type;
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/*
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* Nexthop value.
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*/
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enum static_blackhole_type bh_type;
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union g_addr addr;
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ifindex_t ifindex;
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bool nh_registered;
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bool nh_valid;
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char ifname[INTERFACE_NAMSIZ + 1];
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/* Label information */
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struct static_nh_label snh_label;
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uint32_t table_id;
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/*
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* Whether to pretend the nexthop is directly attached to the specified
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* link. Only meaningful when both a gateway address and interface name
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* are specified.
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*/
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bool onlink;
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};
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extern bool mpls_enabled;
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extern struct zebra_privs_t static_privs;
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void static_fixup_vrf_ids(struct static_vrf *svrf);
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extern int static_add_route(afi_t afi, safi_t safi, uint8_t type,
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struct prefix *p, struct prefix_ipv6 *src_p,
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union g_addr *gate, const char *ifname,
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enum static_blackhole_type bh_type, route_tag_t tag,
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uint8_t distance, struct static_vrf *svrf,
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struct static_vrf *nh_svrf,
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struct static_nh_label *snh_label,
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uint32_t table_id, bool onlink);
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extern int static_delete_route(afi_t afi, safi_t safi, uint8_t type,
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struct prefix *p, struct prefix_ipv6 *src_p,
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union g_addr *gate, const char *ifname,
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route_tag_t tag, uint8_t distance,
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struct static_vrf *svrf,
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struct static_nh_label *snh_label,
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uint32_t table_id);
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extern void static_cleanup_vrf_ids(struct static_vrf *disable_svrf);
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extern void static_install_intf_nh(struct interface *ifp);
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extern void static_ifindex_update(struct interface *ifp, bool up);
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#endif
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