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components/ip_net2-6.9/ipmip6/include/private/ipmip6_if_prefix.h
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/* ipmip6_if_prefix.h - ipmip6_if_prefix.h */
/*
******************************************************************************
* HEADER FILE
*
* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipmip6_if_prefix.h,v $ $Revision: 1.7 $
* $Source: /home/interpeak/CVSRoot/ipmip6/include/private/ipmip6_if_prefix.h,v $
* $Author: jhorteli $ $Date: 2010-12-07 09:55:18 $
* $State: Exp $ $Locker: $
*
* INTERPEAK_COPYRIGHT_STRING
* Design and implementation by Joel Hortelius <joel.hortelius@interpeak.se>
******************************************************************************
*/
#ifndef IPMIP6_IF_PREFIX_H
#define IPMIP6_IF_PREFIX_H
/*
****************************************************************************
* 1 DESCRIPTION
****************************************************************************
*/
/*
DESCRIPTION
This module defines the basic IPMIP6 interface prefix management. The features
include keeping track of the prefixes published on the interface.
*/
/*
****************************************************************************
* 2 CONFIGURATION
****************************************************************************
*/
/*
****************************************************************************
* 3 INCLUDE FILES
****************************************************************************
*/
#include <private/ipmip6_nd_nud.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
****************************************************************************
* 4 DEFINES
****************************************************************************
*/
/*
****************************************************************************
* 5 TYPES
****************************************************************************
*/
struct Ipmip6_if_router;
struct Ipmip6_if_prefix;
struct Ipmip6_if_notify;
struct Ipmip6_context;
struct Ipmip_proc;
/* Added prefixes */
typedef struct Ipmip6_if_prefix_route
{
Ipcom_list next;
Ipmip6_address_t pdata;
Ip_u32 prefixes;
}
Ipmip6_if_prefix_route_t;
/* Structure holding one prefix */
typedef struct Ipmip6_if_prefix
{
Ipcom_list next; /* Linkage */
/**/
Ip_bool requested; /* Address request issued */
Ipmip6_address_t prefix; /* Prefix data */
struct Ipmip6_if_router *router; /* Router owning this prefix */
Ip_u8 flags; /* Flags for this prefix */
Ip_u8 type; /* Type of prefix */
Ip_time_t valid; /* Validity time */
Ip_time_t preferred; /* Preferred time */
Ip_time_t stamp; /* Stamp time */
Ipmip_timer_t timeout;
Ipmip6_if_prefix_route_t *prefix_route; /* Prefix route */
/* OLD */
Ipcom_list attached; /* Attached addresses */
Ipmip6_nd_nud_t nud; /* Neighbor unreachability */
}
Ipmip6_if_prefix_t;
/*
****************************************************************************
* 6 FUNCTIONS
****************************************************************************
*/
/*******************************************************************************
*
* ipmip6_if_prefix_restart_iflocked - ipmip6_if_prefix_restart_iflocked
*
* Restart timeout calculations for a prefix. The prefix has most likely been
* refreshed by a router advertisement.
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \i prefix
* The prefix to restart timeout calculations for.
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip6_if_prefix_restart_iflocked
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc,
Ipmip6_if_prefix_t *prefix
);
/*******************************************************************************
*
* ipmip6_if_prefix_delete_iflocked - ipmip6_if_prefix_delete_iflocked
*
* Deletes a prefix from an interface.
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \i prefix
* The prefix
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_if_prefix_delete_iflocked
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc,
Ipmip6_if_prefix_t *prefix
);
/*******************************************************************************
*
* ipmip6_if_prefix_create_iflocked - ipmip6_if_prefix_create_iflocked
*
* Create a router prefix owned by the provided router.
* Link it into the interface owning the router.
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i rtr
* The router
* \i prefix
* The prefix
* \i prefix_len
* The bit length of the prefix
* \ie
*
* RETURNS: The newly allocated prefix
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip6_if_prefix_t *ipmip6_if_prefix_create_iflocked
(
struct Ipmip6_if_router *rtr,
struct Ip_in6_addr *prefix,
Ip_u8 prefix_len
);
/*******************************************************************************
*
* ipmip6_if_prefix_lookup_iflocked - ipmip6_if_prefix_lookup_iflocked
*
* Lookup an asked for prefix in a router
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i rtr
* The router
* \i addr
* The prefix
* \i len
* The bit length of the prefix
* \ie
*
* RETURNS: The prefix if it exists.
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip6_if_prefix_t *ipmip6_if_prefix_lookup_iflocked
(
struct Ipmip6_if_router *rtr,
struct Ip_in6_addr *addr,
Ip_u8 len
);
/*******************************************************************************
*
* ipmip6_if_prefix_install_iflocked - ipmip6_if_prefix_install_iflocked
*
* Install a prefix route.
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \i prefix
* The prefix route to install.
* \ie
*
* RETURNS: IP_TRUE on success.
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip6_if_prefix_install_iflocked
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc,
Ipmip6_if_prefix_t *prefix
);
/*******************************************************************************
*
* ipmip6_if_prefix_valid_iflocked - ipmip6_if_prefix_valid_iflocked
*
* Determines whether or not this prefix is valid
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i prefix
* The prefix to validate
* \ie
*
* RETURNS: IP_TRUE on success.
*
* ERRNO:
*
*/
IP_GLOBAL Ip_bool ipmip6_if_prefix_valid_iflocked
(
Ipmip6_if_prefix_t *prefix
);
/*******************************************************************************
*
* ipmip6_if_prefix_nud_query_iflocked - ipmip6_if_prefix_nud_query_iflocked
*
* Do a NUD query on the current global prefix.
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i ctx
* The generic mobility singleton context for IPMIP6. For each started mobility
* entity, there exists a mobility context which tracks configuration, system
* events, available features and started processes. The mobility context is
* created using ipmip6_context_create(). See ipmip6_context.h for
* more information regarding the mobility entity context singleton.
* \i proc
* The process context associated with the currently executing thread. Each
* thread and/or process in MIP must have its own unique process context.
* If a process is started using ipmip_proc_start, the process context will
* be allocated automatically by the IPMIP framework. Otherwise it must
* be allocated using ipmip_proc_alloc().
* \i prefix
* The prefix route to install.
* \ie
*
* RETURNS:
*
* ERRNO:
*
*/
IP_GLOBAL void ipmip6_if_prefix_nud_query_iflocked
(
struct Ipmip6_context *ctx,
struct Ipmip_proc *proc,
Ipmip6_if_prefix_t *prefix
);
/*******************************************************************************
*
* ipmip6_if_prefix_lookup_global - ipmip6_if_prefix_lookup_global
*
* Try lookup a global prefix in the specified router.
*
* THIS FUNCTION REQUIRES THAT THE INTERFACE LOCK IS HELD.
*
* Parameters:
* \is
* \i prefix
* The prefix to validate
* \ie
*
* RETURNS: The prefix if it exists.
*
* ERRNO:
*
*/
IP_GLOBAL Ipmip6_if_prefix_t *ipmip6_if_prefix_lookup_global
(
struct Ipmip6_if_router *rtr
);
#ifdef __cplusplus
}
#endif
#endif
/*
****************************************************************************
* END OF FILE
****************************************************************************
*/