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/*
PIM for Quagga
Copyright (C) 2008 Everton da Silva Marques
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.
This program 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.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING; if not, write to the
Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301 USA
*/
#ifndef PIM_OIL_H
#define PIM_OIL_H
#include "pim_mroute.h"
/*
* Where did we get this (S,G) from?
*
* IGMP - Learned from IGMP
* PIM - Learned from PIM
* SOURCE - Learned from Source multicast packet received
*/
#define PIM_OIF_FLAG_PROTO_IGMP (1 << 0)
#define PIM_OIF_FLAG_PROTO_PIM (1 << 1)
#define PIM_OIF_FLAG_PROTO_SOURCE (2 << 1)
#define PIM_OIF_FLAG_PROTO_ANY (PIM_OIF_FLAG_PROTO_IGMP | \
PIM_OIF_FLAG_PROTO_PIM | \
PIM_OIF_FLAG_PROTO_SOURCE)
/*
* We need a pimreg vif id from the kernel.
* Since ifindex == vif id for most cases and the number
* of expected interfaces is at most 100, using MAXVIFS -1
* is probably ok.
* Don't come running to me if this assumption is bad,
* fix it.
*/
#define PIM_OIF_PIM_REGISTER_VIF (MAXVIFS - 1)
#define PIM_MAX_USABLE_VIFS (MAXVIFS - 2)
struct channel_counts
{
unsigned long long lastused;
unsigned long pktcnt;
unsigned long oldpktcnt;
unsigned long bytecnt;
unsigned long oldbytecnt;
unsigned long wrong_if;
unsigned long oldwrong_if;
};
/*
qpim_channel_oil_list holds a list of struct channel_oil.
Each channel_oil.oil is used to control an (S,G) entry in the Kernel
Multicast Forwarding Cache.
*/
struct channel_oil {
struct mfcctl oil;
int installed;
int oil_size;
int oil_ref_count;
time_t oif_creation[MAXVIFS];
uint32_t oif_flags[MAXVIFS];
struct channel_counts cc;
};
extern struct list *pim_channel_oil_list;
void pim_oil_init (void);
void pim_oil_terminate (void);
void pim_channel_oil_free(struct channel_oil *c_oil);
struct channel_oil *pim_channel_oil_add(struct prefix_sg *sg,
int input_vif_index);
void pim_channel_oil_del(struct channel_oil *c_oil);
int pim_channel_add_oif(struct channel_oil *c_oil,
struct interface *oif,
uint32_t proto_mask);
int pim_channel_del_oif (struct channel_oil *c_oil,
struct interface *oif,
uint32_t proto_mask);
#endif /* PIM_OIL_H */
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