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/*
*
* Copyright (c) 2018 Huawei Technologies Co.,Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <arpa/inet.h>
#include "nstack_rd_data.h"
#include "nstack_rd.h"
#include "nstack_rd_init.h"
#include "nstack_rd_priv.h"
#include "nstack_rd_proto.h"
#include "nstack_log.h"
#include "nstack_securec.h"
/*copy rd data*/
int
nstack_rd_proto_cpy (void *destdata, void *srcdata)
{
rd_data_item *pitem = (rd_data_item *) destdata;
rd_route_data *pdata = (rd_route_data *) srcdata;
pitem->type = pdata->type;
pitem->proto_type = pdata->proto_type;
return NSTACK_RD_SUCCESS;
}
/*
* Add an ip segment to the list and sort it in descending order of ip mask length
* If the list already exists in the same list of ip side, then stack_id update
*ip is local byteorder
*/
int
nstack_rd_proto_item_insert (nstack_rd_list * hlist, void *rditem)
{
nstack_rd_node *pdatanode = NULL;
nstack_rd_node *tempdata = NULL;
struct hlist_node *tempnode = NULL;
rd_data_item *pitem = (rd_data_item *) rditem;
NSSOC_LOGDBG ("stackid:%d, protocol type:%d was inserted", pitem->stack_id,
pitem->proto_type);
pdatanode = (nstack_rd_node *) malloc (sizeof (nstack_rd_node));
if (!pdatanode)
{
NSSOC_LOGERR ("nstack rd item malloc fail");
return NSTACK_RD_FAIL;
}
int retVal =
MEMSET_S (pdatanode, sizeof (nstack_rd_node), 0, sizeof (nstack_rd_node));
if (EOK != retVal)
{
NSSOC_LOGERR ("MEMSET_S failed]retVal=%d", retVal);
free (pdatanode);
return NSTACK_RD_FAIL;
}
INIT_HLIST_NODE (&pdatanode->rdnode);
NSTACK_RD_PROTO_ITEM_COPY (&(pdatanode->item), pitem);
if (hlist_empty (&(hlist->headlist)))
{
hlist_add_head (&(pdatanode->rdnode), &(hlist->headlist));
return NSTACK_RD_SUCCESS;
}
hlist_for_each_entry (tempdata, tempnode, &(hlist->headlist), rdnode)
{
if (tempdata->item.proto_type == pitem->proto_type)
{
tempdata->item.stack_id = pitem->stack_id;
tempdata->item.agetime = NSTACK_RD_AGETIME_MAX;
free (pdatanode);
return NSTACK_RD_SUCCESS;
}
}
hlist_add_head (&(pdatanode->rdnode), &(hlist->headlist));
return NSTACK_RD_SUCCESS;
}
/*
*find stackid by ip
*input ip must netorder
*/
int
nstack_rd_proto_item_find (nstack_rd_list * hlist, void *rdkey, void *outitem)
{
struct hlist_node *tempnode = NULL;
nstack_rd_node *tempdata = NULL;
nstack_rd_key *key = (nstack_rd_key *) rdkey;
rd_data_item *pitem = (rd_data_item *) outitem;
hlist_for_each_entry (tempdata, tempnode, &(hlist->headlist), rdnode)
{
/*if already exist, just return success */
if (tempdata->item.proto_type == key->proto_type)
{
NSTACK_RD_PROTO_ITEM_COPY (pitem, &(tempdata->item));
return NSTACK_RD_SUCCESS;
}
}
NSSOC_LOGDBG ("protocol type item not found", key->proto_type);
return NSTACK_RD_FAIL;
}
/*****************************************************************************
* Prototype : nstack_rd_ip_item_age
* Description : delete the ip item that have not been add again for one time
* Input : nstack_rd_list *hlist
* Output : None
* Return Value : int
* Calls :
* Called By :
*****************************************************************************/
int
nstack_rd_proto_item_age (nstack_rd_list * hlist)
{
struct hlist_node *tempnode = NULL;
nstack_rd_node *tempdata = NULL;
nstack_rd_node *prevdata = NULL;
struct hlist_node *prevnode = NULL;
NSSOC_LOGINF ("nstack rd ip age begin");
hlist_for_each_entry (tempdata, tempnode, &(hlist->headlist), rdnode)
{
/*if agetime equal 0, remove it */
if (tempdata->item.agetime <= 0)
{
if (prevdata)
{
NSSOC_LOGDBG ("stackid:%d, protocol type was aged",
tempdata->item.stack_id, tempdata->item.proto_type);
hlist_del_init (prevnode);
free (prevdata);
}
prevdata = tempdata;
prevnode = tempnode;
}
else
{
tempdata->item.agetime--;
}
}
if (prevdata)
{
if (tempdata)
{
NSSOC_LOGDBG ("stackid:%d, protocol type was aged",
tempdata->item.stack_id, tempdata->item.proto_type);
}
hlist_del_init (prevnode);
free (prevdata);
}
NSSOC_LOGINF ("nstack rd ip age end");
return NSTACK_RD_SUCCESS;
}
/*
*find stackid by spec ip(multicast ip)
*input ip must netorder
*/
int
nstack_rd_proto_spec (void *rdkey)
{
return -1;
}
int
nstack_rd_proto_default (void *rdkey)
{
return -1;
}
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