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/* PIM support for VxLAN BUM flooding
*
* Copyright (C) 2019 Cumulus Networks, Inc.
*
* This file is part of FRR.
*
* FRR is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* FRR is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef PIM_VXLAN_H
#define PIM_VXLAN_H
/* global timer used for miscellaneous staggered processing */
#define PIM_VXLAN_WORK_TIME 1
/* number of SG entries processed at one shot */
#define PIM_VXLAN_WORK_MAX 500
/* frequency of periodic NULL registers */
#define PIM_VXLAN_NULL_REG_INTERVAL 60 /* seconds */
#define vxlan_mlag (vxlan_info.mlag)
enum pim_vxlan_sg_flags {
PIM_VXLAN_SGF_NONE = 0,
PIM_VXLAN_SGF_DEL_IN_PROG = (1 << 0),
PIM_VXLAN_SGF_OIF_INSTALLED = (1 << 1)
};
struct pim_vxlan_sg {
struct pim_instance *pim;
/* key */
struct prefix_sg sg;
char sg_str[PIM_SG_LEN];
enum pim_vxlan_sg_flags flags;
struct pim_upstream *up;
struct listnode *work_node; /* to pim_vxlan.work_list */
/* termination info (only applicable to termination XG mroutes)
* term_if - termination device ipmr-lo is added to the OIL
* as local/IGMP membership to allow termination of vxlan traffic
*/
struct interface *term_oif;
/* origination info
* iif - lo/vrf or peerlink (on MLAG setups)
* peerlink_oif - added to the OIL to send encapsulated BUM traffic to
* the MLAG peer switch
*/
struct interface *iif;
/* on a MLAG setup the peerlink is added as a static OIF */
struct interface *orig_oif;
};
enum pim_vxlan_mlag_flags {
PIM_VXLAN_MLAGF_NONE = 0,
PIM_VXLAN_MLAGF_ENABLED = (1 << 0)
};
enum pim_vxlan_mlag_role {
PIM_VXLAN_MLAG_ROLE_SECONDARY = 0,
PIM_VXLAN_MLAG_ROLE_PRIMARY
};
struct pim_vxlan_mlag {
enum pim_vxlan_mlag_flags flags;
enum pim_vxlan_mlag_role role;
bool peer_state;
/* routed interface setup on top of MLAG peerlink */
struct interface *peerlink_rif;
struct in_addr reg_addr;
};
enum pim_vxlan_flags {
PIM_VXLANF_NONE = 0,
PIM_VXLANF_WORK_INITED = (1 << 0)
};
struct pim_vxlan {
enum pim_vxlan_flags flags;
struct thread *work_timer;
struct list *work_list;
struct listnode *next_work;
int max_work_cnt;
struct pim_vxlan_mlag mlag;
};
extern struct pim_vxlan_sg *pim_vxlan_sg_find(struct pim_instance *pim,
struct prefix_sg *sg);
extern struct pim_vxlan_sg *pim_vxlan_sg_add(struct pim_instance *pim,
struct prefix_sg *sg);
extern void pim_vxlan_sg_del(struct pim_instance *pim, struct prefix_sg *sg);
#endif /* PIM_VXLAN_H */
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