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/*
* VRF 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 GNU Zebra; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _ZEBRA_VRF_H
#define _ZEBRA_VRF_H
#include "openbsd-tree.h"
#include "linklist.h"
#include "qobj.h"
#include "vty.h"
/* The default NS ID */
#define NS_DEFAULT 0
/* The default VRF ID */
#define VRF_DEFAULT 0
#define VRF_UNKNOWN UINT16_MAX
#define VRF_ALL UINT16_MAX - 1
/* Pending: May need to refine this. */
#ifndef IFLA_VRF_MAX
enum {
IFLA_VRF_UNSPEC,
IFLA_VRF_TABLE,
__IFLA_VRF_MAX
};
#define IFLA_VRF_MAX (__IFLA_VRF_MAX - 1)
#endif
#define VRF_NAMSIZ 36
#define VRF_DEFAULT_NAME "Default-IP-Routing-Table"
/*
* The command strings
*/
#define VRF_CMD_HELP_STR "Specify the VRF\nThe VRF name\n"
#define VRF_ALL_CMD_HELP_STR "Specify the VRF\nAll VRFs\n"
/*
* VRF hooks
*/
#define VRF_NEW_HOOK 0 /* a new VRF is just created */
#define VRF_DELETE_HOOK 1 /* a VRF is to be deleted */
#define VRF_ENABLE_HOOK 2 /* a VRF is ready to use */
#define VRF_DISABLE_HOOK 3 /* a VRF is to be unusable */
struct vrf
{
RB_ENTRY(vrf) id_entry, name_entry;
/* Identifier, same as the vector index */
vrf_id_t vrf_id;
/* Name */
char name[VRF_NAMSIZ + 1];
/* Zebra internal VRF status */
u_char status;
#define VRF_ACTIVE (1 << 0)
/* Master list of interfaces belonging to this VRF */
struct list *iflist;
/* User data */
void *info;
QOBJ_FIELDS
};
RB_HEAD (vrf_id_head, vrf);
RB_PROTOTYPE (vrf_id_head, vrf, id_entry, vrf_id_compare)
RB_HEAD (vrf_name_head, vrf);
RB_PROTOTYPE (vrf_name_head, vrf, name_entry, vrf_name_compare)
DECLARE_QOBJ_TYPE(vrf)
extern struct vrf_id_head vrfs_by_id;
extern struct vrf_name_head vrfs_by_name;
/*
* Add a specific hook to VRF module.
* @param1: hook type
* @param2: the callback function
* - param 1: the VRF ID
* - param 2: the address of the user data pointer (the user data
* can be stored in or freed from there)
*/
extern void vrf_add_hook (int, int (*)(struct vrf *));
extern struct vrf *vrf_lookup_by_id (vrf_id_t);
extern struct vrf *vrf_lookup_by_name (const char *);
extern struct vrf *vrf_get (vrf_id_t, const char *);
extern void vrf_delete (struct vrf *);
extern int vrf_enable (struct vrf *);
extern vrf_id_t vrf_name_to_id (const char *);
#define VRF_GET_ID(V,NAME) \
do { \
struct vrf *vrf; \
if (!(vrf = vrf_lookup_by_name(NAME))) \
{ \
vty_out (vty, "%% VRF %s not found%s", NAME, VTY_NEWLINE);\
return CMD_WARNING; \
} \
if (vrf->vrf_id == VRF_UNKNOWN) \
{ \
vty_out (vty, "%% VRF %s not active%s", NAME, VTY_NEWLINE);\
return CMD_WARNING; \
} \
(V) = vrf->vrf_id; \
} while (0)
/*
* Utilities to obtain the user data
*/
/* Get the data pointer of the specified VRF. If not found, create one. */
extern void *vrf_info_get (vrf_id_t);
/* Look up the data pointer of the specified VRF. */
extern void *vrf_info_lookup (vrf_id_t);
/*
* Utilities to obtain the interface list
*/
/* Look up the interface list of the specified VRF. */
extern struct list *vrf_iflist (vrf_id_t);
/* Get the interface list of the specified VRF. Create one if not find. */
extern struct list *vrf_iflist_get (vrf_id_t);
/* Create the interface list for the specified VRF, if needed. */
extern void vrf_iflist_create (vrf_id_t vrf_id);
/* Free the interface list of the specified VRF. */
extern void vrf_iflist_terminate (vrf_id_t vrf_id);
/*
* VRF bit-map: maintaining flags, one bit per VRF ID
*/
typedef void * vrf_bitmap_t;
#define VRF_BITMAP_NULL NULL
extern vrf_bitmap_t vrf_bitmap_init (void);
extern void vrf_bitmap_free (vrf_bitmap_t);
extern void vrf_bitmap_set (vrf_bitmap_t, vrf_id_t);
extern void vrf_bitmap_unset (vrf_bitmap_t, vrf_id_t);
extern int vrf_bitmap_check (vrf_bitmap_t, vrf_id_t);
/*
* VRF initializer/destructor
*/
/* Please add hooks before calling vrf_init(). */
extern void vrf_init (void);
extern void vrf_terminate (void);
extern void vrf_cmd_init (int (*writefunc)(struct vty *vty));
/*
* VRF utilities
*/
/* Create a socket serving for the given VRF */
extern int vrf_socket (int, int, int, vrf_id_t);
/*
* VRF Debugging
*/
extern void vrf_install_commands (void);
#endif /*_ZEBRA_VRF_H*/
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