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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 "nstack_rd.h"
#include "nstack_rd_data.h"
#include "nstack_rd_init.h"
#include "nstack_rd_priv.h"
#include "nstack_log.h"
#include "nstack_securec.h"
#define NSTACK_RD_ERR_CHECK_GOTO(ret, desc, lab) \
if (NSTACK_RD_SUCCESS != (ret))\
{ \
NSSOC_LOGERR("%s fail, return:%d", desc, ret); \
goto lab; \
}
#define NSTACK_RD_POINT_CHECK_GOTO(ptr, desc, lab) \
if (!ptr)\
{ \
NSSOC_LOGERR("%s fail", desc); \
goto lab; \
}
rd_local_data *g_rd_local_data = NULL;
/*****************************************************************************
* Prototype : nstack_rd_init
* Description : nstack rd init
* Input : nstack_stack_info *pstack
* int num
* nstack_get_route_data pfun
* Output : None
* Return Value : int
* Calls :
* Called By :
* pstack : 1. priority 0: when router not fund, the first will be chose
* 2. if have many same 0 priority, fist input will be chose,
* 3. if none 0 priority, the last input will be choose
*****************************************************************************/
int
nstack_rd_init (nstack_stack_info * pstack, int num,
nstack_get_route_data * pfun, int fun_num)
{
int icnt = 0;
int hindex = 0;
int tindex = num - 1;
int iindex = 0;
int ret = NSTACK_RD_SUCCESS;
nstack_rd_stack_info *ptemstack = NULL;
if ((!pstack) || (!pfun))
{
NSSOC_LOGERR ("input err pstack:%p, pfun:%p", pstack, pfun);
return NSTACK_RD_FAIL;
}
g_rd_local_data = (rd_local_data *) malloc (sizeof (rd_local_data));
if (!g_rd_local_data)
{
NSSOC_LOGERR ("g_rd_local_data alloc fail");
return NSTACK_RD_FAIL;
}
if (EOK !=
MEMSET_S ((void *) g_rd_local_data, sizeof (rd_local_data), 0,
sizeof (rd_local_data)))
{
NSSOC_LOGERR ("MEMSET_S fail");
goto ERR;
}
for (icnt = 0; icnt < fun_num; icnt++)
{
g_rd_local_data->sys_fun[icnt] = pfun[icnt];
}
g_rd_local_data->fun_num = fun_num;
ptemstack =
(nstack_rd_stack_info *) malloc (sizeof (nstack_rd_stack_info) * num);
NSTACK_RD_POINT_CHECK_GOTO (ptemstack, "rd stack info malloc fail", ERR);
/*save stack info in priority order */
for (icnt = 0; icnt < num; icnt++)
{
if (0 == pstack[icnt].priority)
{
iindex = hindex;
hindex++;
}
else
{
iindex = tindex;
tindex--;
}
/* modify destMax from RD_PLANE_NAMELEN to STACK_NAME_MAX */
ret =
STRCPY_S (ptemstack[iindex].name, STACK_NAME_MAX, pstack[icnt].name);
if (ret != EOK)
{
NSSOC_LOGERR ("STRCPY_S failed");
goto ERR;
}
ptemstack[iindex].priority = pstack[icnt].priority;
ptemstack[iindex].stack_id = pstack[icnt].stack_id;
NSSOC_LOGDBG
("nstack rd init]stackname=%s,priority=%d,stackid=%d was added",
ptemstack[iindex].name,
ptemstack[iindex].priority, ptemstack[iindex].stack_id);
}
g_rd_local_data->pstack_info = ptemstack;
g_rd_local_data->stack_num = num;
for (icnt = 0; icnt < RD_DATA_TYPE_MAX; icnt++)
{
INIT_HLIST_HEAD (&(g_rd_local_data->route_list[icnt].headlist));
}
return NSTACK_RD_SUCCESS;
ERR:
if (g_rd_local_data)
{
free (g_rd_local_data);
g_rd_local_data = NULL;
}
if (ptemstack)
{
free (ptemstack);
}
return NSTACK_RD_FAIL;
}
/*****************************************************************************
* Prototype : nstack_get_stackid_byname
* Description : get stack ip by stack name
* Input : char *name
* Output : None
* Return Value : int
* Calls :
* Called By :
*****************************************************************************/
int
nstack_get_stackid_byname (char *name)
{
int stacknum = g_rd_local_data->stack_num;
int iindex = 0;
nstack_rd_stack_info *pstack = NULL;
for (iindex = 0; iindex < stacknum; iindex++)
{
pstack = &(g_rd_local_data->pstack_info[iindex]);
if (0 == strcmp (pstack->name, name))
{
return pstack->stack_id;
}
}
return -1;
}
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