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/*
* NS related header.
* Copyright (C) 2014 6WIND S.A.
*
* This file is part of GNU Zebra.
*
* GNU Zebra 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.
*
* GNU Zebra 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 _ZEBRA_NS_H
#define _ZEBRA_NS_H
#include "openbsd-tree.h"
#include "linklist.h"
typedef u_int16_t ns_id_t;
/* The default NS ID */
#define NS_DEFAULT 0
/* Default netns directory (Linux) */
#define NS_RUN_DIR "/var/run/netns"
struct ns {
RB_ENTRY(ns) entry;
/* Identifier, same as the vector index */
ns_id_t ns_id;
/* Name */
char *name;
/* File descriptor */
int fd;
/* Master list of interfaces belonging to this NS */
struct list *iflist;
/* User data */
void *info;
};
RB_HEAD(ns_head, ns);
RB_PROTOTYPE(ns_head, ns, entry, ns_compare)
extern struct ns_head ns_tree;
/*
* NS hooks
*/
#define NS_NEW_HOOK 0 /* a new logical-router is just created */
#define NS_DELETE_HOOK 1 /* a logical-router is to be deleted */
#define NS_ENABLE_HOOK 2 /* a logical-router is ready to use */
#define NS_DISABLE_HOOK 3 /* a logical-router is to be unusable */
/*
* Add a specific hook ns module.
* @param1: hook type
* @param2: the callback function
* - param 1: the NS ID
* - param 2: the address of the user data pointer (the user data
* can be stored in or freed from there)
*/
extern void ns_add_hook(int, int (*)(ns_id_t, void **));
/*
* NS initializer/destructor
*/
/* Please add hooks before calling ns_init(). */
extern void ns_init(void);
extern void ns_terminate(void);
/*
* NS utilities
*/
/* Create a socket serving for the given NS */
extern int ns_socket(int, int, int, ns_id_t);
#endif /*_ZEBRA_NS_H*/
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