356 lines
14 KiB
C
356 lines
14 KiB
C
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/*
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******************************************************************************
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* INTERPEAK SOURCE FILE
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*
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* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipmip6ha_ifevent.c,v $ $Revision: 1.12 $
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* $Source: /home/interpeak/CVSRoot/ipmip6ha/src/ipmip6ha_ifevent.c,v $
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* $Author: jhorteli $
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* $State: Exp $ $Locker: $
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*
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* INTERPEAK_COPYRIGHT_STRING
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* Design and implementation by Joel Hortelius <joel.hortelis@interpeak.se>
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******************************************************************************
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*/
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/*
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****************************************************************************
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* 1 DESCRIPTION
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 2 CONFIGURATION
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****************************************************************************
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*/
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#include "ipmip6ha_config.h"
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/*
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****************************************************************************
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* 3 INCLUDE FILES
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****************************************************************************
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*/
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#define IPCOM_USE_CLIB_PROTO
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#include <ipcom_clib.h>
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#include <ipcom_os.h>
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#include <ipcom_sock.h>
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#include <ipcom_sock6.h>
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#include <ipcom_inet.h>
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#include <ipcom_list.h>
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#include <ipcom_hash.h>
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#include <ipcom_err.h>
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#include <ipcom_sysvar.h>
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#include <ipcom_syslog.h>
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#include <ipcom_shell.h>
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#include <ipmip.h>
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#include <private/ipmip_timer.h>
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#include <private/ipmip_util.h>
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#include <ipmip6.h>
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#include <private/ipmip6_if.h>
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#include <private/ipmip6_context.h>
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#include <private/ipmip6_netlink.h>
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#include <private/ipmip6_icmp_pkt.h>
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#include <private/ipmip6_util.h>
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#include "ipmip6ha_h.h"
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#include "ipmip6ha_if.h"
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#include "ipmip6ha_attr_h.h"
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/*
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****************************************************************************
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* 4 DEFINES
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 5 TYPES
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 6 EXTERN PROTOTYPES
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 7 LOCAL PROTOTYPES
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****************************************************************************
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*/
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IP_STATIC void ipmip6ha_ifevent_router_new(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6_if_t *ife,
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Ipmip6_if_router_t *router);
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IP_STATIC void ipmip6ha_ifevent_router_expire(Ipmip6_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6_if_t *ife,
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Ipmip6_if_router_t *router);
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IP_STATIC void ipmip6ha_ifevent_prefix_new(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6ha_if_t *ife,
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Ipmip6_if_prefix_t *prefix);
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IP_STATIC void ipmip6ha_ifevent_prefix_expire(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6ha_if_t *ife,
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Ipmip6_if_prefix_t *prefix);
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IP_STATIC void ipmip6ha_ifevent_prefix_advertise(Ipmip6_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6_if_t *ife,
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Ipmip6_if_prefix_t *prefix);
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IP_STATIC void ipmip6ha_ifevent_prefix_update(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6ha_if_t *ife,
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Ipmip6_if_prefix_t *prefix);
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/*
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****************************************************************************
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* 8 DATA
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****************************************************************************
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*/
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Ipmip6_if_event_table_t ipmip6ha_ifevent_table =
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{
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(Ipmip6_if_event_t)IP_NULL,
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(Ipmip6_if_event_t)IP_NULL,
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(Ipmip6_if_event_t)ipmip6ha_ifevent_router_new,
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(Ipmip6_if_event_t)ipmip6ha_ifevent_router_expire,
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(Ipmip6_if_event_t)ipmip6ha_ifevent_prefix_new,
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(Ipmip6_if_event_t)ipmip6ha_ifevent_prefix_expire,
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(Ipmip6_if_event_t)ipmip6ha_ifevent_prefix_advertise,
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(Ipmip6_if_event_t)ipmip6ha_ifevent_prefix_update
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};
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/*
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****************************************************************************
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* 9 STATIC FUNCTIONS
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****************************************************************************
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*/
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IP_STATIC void
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ipmip6ha_ifevent_router_new(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6_if_t *ife,
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Ipmip6_if_router_t *router)
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{
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IPMIP_UNUSED_PARAMETER(ctx);
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IPMIP_UNUSED_PARAMETER(proc);
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IPMIP_UNUSED_PARAMETER(ife);
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IPMIP_UNUSED_PARAMETER(router);
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}
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IP_STATIC void
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ipmip6ha_ifevent_router_expire(Ipmip6_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6_if_t *ife,
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Ipmip6_if_router_t *router)
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{
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IPMIP_UNUSED_PARAMETER(ctx);
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IPMIP_UNUSED_PARAMETER(proc);
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IPMIP_UNUSED_PARAMETER(ife);
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IPMIP_UNUSED_PARAMETER(router);
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}
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IP_STATIC void
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ipmip6ha_ifevent_prefix_new(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6ha_if_t *ife,
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Ipmip6_if_prefix_t *prefix)
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{
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if (IP_BIT_ISSET(prefix->flags, IPMIP6_ND_OPT_PI_FLAG_ONLINK))
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{
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Ipmip6ha_if_route_entry_t *se;
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struct Ip_in6_addr lkey;
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ipmip6_address_create_prefix(&lkey, &prefix->prefix.prefix, prefix->prefix.len);
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IPMIP_UNUSED_PARAMETER(ctx);
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IPMIP_UNUSED_PARAMETER(proc);
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ipcom_mutex_lock(ctx->prefixes_lock);
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/* Found, already in the table */
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if ((se = (Ipmip6ha_if_route_entry_t *)ipmip_route_lookup_exact(ctx->prefixes, &lkey, prefix->prefix.len)) != IP_NULL)
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{
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if (se->ifp != ife)
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{
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IPMIP6_EVENT_IF(ERR, proc,
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ipmip_log_event_add(&ctx->ipmip6.ipmip,
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proc,
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"On-link prefix %s/%d seen on both %s and %s -- may cause problems",
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ipmip_ntop_inet6(proc, &lkey, IP_NULL),
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se->ifp->ipmip6.iff.ifname,
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ife->ipmip6.iff.ifname));
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/* Switch to last seen */
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se->ifp = ife;
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}
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se->refcnt++;
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}
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else
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{
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se = ipcom_calloc(1, sizeof(*se));
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if (se != IP_NULL)
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{
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ipmip_util_create_mask((Ip_u8 *)&se->mask, prefix->prefix.len);
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ipmip6_address_create_prefix(&se->subnet, &prefix->prefix.prefix, prefix->prefix.len);
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se->mask_len = prefix->prefix.len;
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/* Create the entry */
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se->ipmip.hdr.key = &se->subnet;
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se->ipmip.hdr.mask = &se->mask;
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/**/
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se->refcnt = 1;
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se->timestamp = prefix->stamp;
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se->valid = prefix->valid;
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se->ifp = ife;
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if (ipmip_route_add(ctx->prefixes, &se->ipmip) != IPCOM_SUCCESS)
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ipcom_free(se);
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}
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}
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ipcom_mutex_unlock(ctx->prefixes_lock);
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IPMIP6_EVENT_IF(INFO, proc,
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ipmip_log_event_add(&ctx->ipmip6.ipmip,
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proc,
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"Adding on-link prefix %s/%d@%s to configuration %s",
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ipmip_ntop_inet6(proc, &lkey, IP_NULL),
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prefix->prefix.len,
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ipmip_ntop_inet6(proc, &prefix->router->addr, IP_NULL),
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ife->ipmip6.iff.ifname));
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}
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}
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IP_STATIC void
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ipmip6ha_ifevent_prefix_expire(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6ha_if_t *ife,
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Ipmip6_if_prefix_t *prefix)
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{
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Ipmip6ha_if_route_entry_t *se;
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IPMIP_UNUSED_PARAMETER(ctx);
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IPMIP_UNUSED_PARAMETER(proc);
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if (IP_BIT_ISSET(prefix->flags, IPMIP6_ND_OPT_PI_FLAG_ONLINK))
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{
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struct Ip_in6_addr lkey;
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ipmip6_address_create_prefix(&lkey, &prefix->prefix.prefix, prefix->prefix.len);
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ipcom_mutex_lock(ctx->prefixes_lock);
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/* Found, already in the table */
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if ((se = (Ipmip6ha_if_route_entry_t *)ipmip_route_lookup_exact(ctx->prefixes, &prefix->prefix.prefix, prefix->prefix.len)) != IP_NULL)
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{
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if (--se->refcnt == 0)
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ipmip_route_delete(ctx->prefixes, &se->ipmip);
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IPMIP6_EVENT_IF(INFO, proc,
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ipmip_log_event_add(&ctx->ipmip6.ipmip,
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proc,
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"Removing on-link prefix %s/%d@%s from configuration %s",
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ipmip_ntop_inet6(proc, &lkey, IP_NULL),
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prefix->prefix.len,
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ipmip_ntop_inet6(proc, &prefix->router->addr, IP_NULL),
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ife->ipmip6.iff.ifname));
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}
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ipcom_mutex_unlock(ctx->prefixes_lock);
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}
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}
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IP_STATIC void
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ipmip6ha_ifevent_prefix_advertise(Ipmip6_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6_if_t *ife,
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Ipmip6_if_prefix_t *prefix)
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{
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IPMIP_UNUSED_PARAMETER(ctx);
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IPMIP_UNUSED_PARAMETER(proc);
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IPMIP_UNUSED_PARAMETER(ife);
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IPMIP_UNUSED_PARAMETER(prefix);
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/* ipmip6m_coa_advertise_prefix(prefix); */
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}
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IP_STATIC void
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ipmip6ha_ifevent_prefix_update(Ipmip6ha_context_t *ctx,
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Ipmip_proc_t *proc,
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Ipmip6ha_if_t *ife,
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Ipmip6_if_prefix_t *prefix)
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{
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Ipmip6ha_if_route_entry_t *se;
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IPMIP_UNUSED_PARAMETER(ctx);
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IPMIP_UNUSED_PARAMETER(proc);
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if (IP_BIT_ISSET(prefix->flags, IPMIP6_ND_OPT_PI_FLAG_ONLINK))
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{
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struct Ip_in6_addr lkey;
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ipmip6_address_create_prefix(&lkey, &prefix->prefix.prefix, prefix->prefix.len);
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ipcom_mutex_lock(ctx->prefixes_lock);
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/* Found, already in the table */
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if ((se = (Ipmip6ha_if_route_entry_t *)ipmip_route_lookup_exact(ctx->prefixes, &lkey, prefix->prefix.len)) != IP_NULL)
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{
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se->timestamp = prefix->stamp;
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se->valid = prefix->valid;
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se->ifp = ife;
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#if 0
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IPMIP6_EVENT_IF(DEBUG2, proc,
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ipmip_log_event_add(&ctx->ipmip6.ipmip,
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proc,
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"Updating on-link prefix %s/%d@%s in configuration %s (%s - %d)",
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ipmip_ntop_inet6(proc, &lkey, IP_NULL),
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prefix->prefix.len,
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ipmip_ntop_inet6(proc, &prefix->router->addr, IP_NULL),
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ife->ipmip6.iff.ifname,
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ipmip_ntop_time(proc, se->timestamp)));
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#endif
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}
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else
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{
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IPMIP6_EVENT_IF(INFO, proc,
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ipmip_log_event_add(&ctx->ipmip6.ipmip,
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proc,
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"On-link prefix %s/%d@%s not found in configuration %s",
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ipmip_ntop_inet6(proc, &lkey, IP_NULL),
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prefix->prefix.len,
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ipmip_ntop_inet6(proc, &prefix->router->addr, IP_NULL),
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ife->ipmip6.iff.ifname));
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}
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ipcom_mutex_unlock(ctx->prefixes_lock);
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}
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}
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/*
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****************************************************************************
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* 10 GLOBAL FUNCTIONS
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 11 PUBLIC FUNCTIONS
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****************************************************************************
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*/
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/*
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****************************************************************************
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* END OF FILE
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****************************************************************************
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*/
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