Files
m241Neelima/components/ip_net2-6.9/ipmip6ha/config/ipmip6ha_pmipv6_linklocal.c
T
2026-07-30 11:19:44 +05:30

222 lines
7.5 KiB
C

/*
******************************************************************************
* INTERPEAK SOURCE FILE
*
* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipmip6ha_pmipv6_linklocal.c,v $ $Revision: 1.6 $
* $Source: /home/interpeak/CVSRoot/ipmip6ha/config/ipmip6ha_pmipv6_linklocal.c,v $
* $Author: jhorteli $
* $State: Exp $ $Locker: $
*
* INTERPEAK_COPYRIGHT_STRING
* Design and implementation by Joel Hortelius <joel.hortelis@interpeak.se>
******************************************************************************
*/
/*
****************************************************************************
* 1 DESCRIPTION
****************************************************************************
*/
/*
****************************************************************************
* 2 CONFIGURATION
****************************************************************************
*/
#include "ipmip6ha_config.h"
/*
****************************************************************************
* 3 INCLUDE FILES
****************************************************************************
*/
#define IPCOM_USE_CLIB_PROTO
#include <ipcom_clib.h>
#include <ipcom_err.h>
#include <ipcom_hash.h>
#include <ipcom_inet.h>
#include <ipcom_ipd.h>
#include <ipcom_list.h>
#include <ipcom_os.h>
#include <ipcom_sock.h>
#include <ipcom_sock2.h>
#include <ipcom_syslog.h>
#include <ipcom_sysvar.h>
#include <ipcom_atomic.h>
#include <ipmip.h>
#include <private/ipmip_sysvar.h>
#include <ipmip6.h>
#include <private/ipmip6_context.h>
#include <private/ipmip6_netlink.h>
#include <private/ipmip6_if.h>
#include <private/ipmip6_icmp.h>
#include <private/ipmip6_util.h>
#include "ipmip6ha_h.h"
#include "ipmip6ha_attr_h.h"
#include "ipmip6ha_if.h"
#include "ipmip6ha_node.h"
#include "ipmip6ha_pktbuf.h"
/*
****************************************************************************
* 4 DEFINES
****************************************************************************
*/
#define IPMIP6HA_PMIPV6_LINKLOCAL "LINKLOCAL"
/*
****************************************************************************
* 5 TYPES
****************************************************************************
*/
typedef struct Ipmip6ha_pmipv6_linklocal_config
{
Ipcom_atomic_t counter;
} Ipmip6ha_pmipv6_linklocal_config_t;
/*
****************************************************************************
* 6 EXTERN PROTOTYPES
****************************************************************************
*/
/*
****************************************************************************
* 7 LOCAL PROTOTYPES
****************************************************************************
*/
/*
****************************************************************************
* 8 DATA
****************************************************************************
*/
/*
****************************************************************************
* 9 STATIC FUNCTIONS
****************************************************************************
*/
IP_STATIC void
ipmip6ha_pmipv6_linklocal_config(struct Ipmip6ha_context *ctx,
struct Ipmip_proc *proc,
int action,
struct Ipmip6ha_if *ifp,
void *gcfg,
Ipmip6ha_pmipv6_linklocal_config_t *cfg,
Ipmip_cli_message_t *request)
{
IPMIP_UNUSED_PARAMETER(ctx);
IPMIP_UNUSED_PARAMETER(proc);
IPMIP_UNUSED_PARAMETER(ifp);
IPMIP_UNUSED_PARAMETER(gcfg);
if (action == IPMIP_CALLBACK_CONFIG_READ)
{
ipcom_atomic_set(&cfg->counter, 0);
}
else if (action == IPMIP_CALLBACK_CONFIG_FREE)
{
/* Do nothing */
}
else if (action == IPMIP_CALLBACK_CONFIG_DUMP)
{
IPMIP_UNUSED_PARAMETER(request);
}
}
IP_STATIC int
ipmip6ha_pmipv6_linklocal_provide(struct Ipmip6ha_context *ctx,
struct Ipmip_proc *proc,
int action,
void *gcfg,
Ipmip6ha_pmipv6_linklocal_config_t *cfg,
void *handle,
struct Ipmip6ha_node_P *node,
struct Ipmip_timer *service)
{
IPMIP_UNUSED_PARAMETER(service);
IPMIP_UNUSED_PARAMETER(cfg);
IPMIP_UNUSED_PARAMETER(handle);
IPMIP_UNUSED_PARAMETER(gcfg);
if (action == IPMIP_CALLBACK_ENABLE)
{
if (IP_IN6_IS_ADDR_UNSPECIFIED(&node->pmipv6_link_local_address.prefix))
{
Ip_u32 low;
while ((low = (Ip_u32)ipcom_atomic_add_and_return(&cfg->counter, 1)) == 0)
;
ipcom_memset(&node->pmipv6_link_local_address.prefix, 0, sizeof(node->pmipv6_link_local_address.prefix));
/**/
IP_SET_HTONS(&node->pmipv6_link_local_address.prefix.in6.addr16[0], 0xfe80);
IP_SET_HTONL(&node->pmipv6_link_local_address.prefix.in6.addr32[3], low);
IPMIP6_EVENT_IF(DEBUG2, proc,
ipmip_log_event_add(&ctx->ipmip6.ipmip,
proc,
"Generated Link-Local address %s for node %s",
ipmip_ntop_inet6(proc, &node->pmipv6_link_local_address.prefix, IP_NULL),
ipmip6ha_node_describe(proc, &node->node)));
}
}
else if (action == IPMIP_CALLBACK_DISABLE)
{
/* DO NOTHING */
}
/* Don't delay */
return IPMIP_CALLBACK_RET_SUCCESS;
}
/*
****************************************************************************
* 10 GLOBAL FUNCTIONS
****************************************************************************
*/
IP_GLOBAL void ipmip6ha_pmipv6_linklocal_install(struct Ipmip6ha_context *ctx);
IP_GLOBAL void
ipmip6ha_pmipv6_linklocal_install(struct Ipmip6ha_context *ctx)
{
static Ipmip6ha_extension_t srv;
ipcom_memset(&srv, 0, sizeof(srv));
srv.name = IPMIP6HA_PMIPV6_LINKLOCAL;
srv.ifp_data_size = sizeof(Ipmip6ha_pmipv6_linklocal_config_t);
srv.config_ifp = (Ipmip6ha_extension_config_ifp_t)ipmip6ha_pmipv6_linklocal_config;
srv.provide = (Ipmip6ha_extension_provide_t)ipmip6ha_pmipv6_linklocal_provide;
/* This is a PMIP only feature */
ipmip6ha_context_register_extension(ctx, &srv, IP_FALSE, IP_TRUE);
}
/*
****************************************************************************
* 11 PUBLIC FUNCTIONS
****************************************************************************
*/
/*
****************************************************************************
* END OF FILE
****************************************************************************
*/