48 lines
2.0 KiB
C
48 lines
2.0 KiB
C
/*
|
|
* The mrouted program is covered by the license in the accompanying file
|
|
* named "LICENSE". Use of the mrouted program represents acceptance of
|
|
* the terms and conditions listed in that file.
|
|
*
|
|
* The mrouted program is COPYRIGHT 1989 by The Board of Trustees of
|
|
* Leland Stanford Junior University.
|
|
*
|
|
*
|
|
* $Id: vif.h,v 1.1 1994/01/11 20:16:06 brezak Exp $
|
|
*/
|
|
|
|
/*
|
|
* User level Virtual Interface structure
|
|
*
|
|
* A "virtual interface" is either a physical, multicast-capable interface
|
|
* (called a "phyint") or a virtual point-to-point link (called a "tunnel").
|
|
* (Note: all addresses, subnet numbers and masks are kept in NETWORK order.)
|
|
*/
|
|
struct uvif {
|
|
u_short uv_flags; /* VIFF_ flags defined below */
|
|
u_char uv_metric; /* cost of this vif */
|
|
u_char uv_threshold; /* min ttl required to forward on vif */
|
|
u_long uv_lcl_addr; /* local address of this vif */
|
|
u_long uv_rmt_addr; /* remote end-point addr (tunnels only) */
|
|
u_long uv_subnet; /* subnet number (phyints only) */
|
|
u_long uv_subnetmask; /* subnet mask (phyints only) */
|
|
u_long uv_subnetbcast;/* subnet broadcast addr (phyints only) */
|
|
char uv_name[IFNAMSIZ]; /* interface name */
|
|
struct listaddr *uv_groups; /* list of local groups (phyints only) */
|
|
struct listaddr *uv_neighbors; /* list of neighboring routers */
|
|
};
|
|
|
|
#define VIFF_KERNEL_FLAGS (VIFF_TUNNEL|VIFF_SRCRT)
|
|
#define VIFF_DOWN 0x0100 /* kernel state of interface */
|
|
#define VIFF_DISABLED 0x0200 /* administratively disabled */
|
|
#define VIFF_QUERIER 0x0400 /* I am the subnet's querier */
|
|
|
|
|
|
struct listaddr {
|
|
struct listaddr *al_next; /* link to next addr, MUST BE FIRST */
|
|
u_long al_addr; /* local group or neighbor address */
|
|
u_long al_timer; /* for timing out group or neighbor */
|
|
};
|
|
|
|
|
|
#define NO_VIF ((vifi_t)MAXVIFS) /* An invalid vif index */
|