qca-ssdk/app/nathelper/linux/nat_helper.c

/*
 * Copyright (c) 2012, The Linux Foundation. All rights reserved.
 * Permission to use, copy, modify, and/or distribute this software for
 * any purpose with or without fee is hereby granted, provided that the
 * above copyright notice and this permission notice appear in all copies.
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifdef KVER32
#include <linux/kconfig.h> 
#include <generated/autoconf.h>
#else
#include <linux/autoconf.h>
#endif
#include <linux/string.h>


#include "nat_helper.h"
#include "fal_init.h"
#include "fal_mirror.h"
#include "hsl_shared_api.h"

char hnat_log_en = HNAT_LOG_LEVEL_DISABLE;
char hnat_log_buffer[NAT_LOG_MAX_SIZE];

void hnat_log_msg(int level, char *string, ...)
{

	va_list   ptr;

	if(level < hnat_log_en)
		return;
	memset(hnat_log_buffer, 0, sizeof(hnat_log_buffer));
	va_start(ptr,string);
	vsnprintf(hnat_log_buffer,sizeof(hnat_log_buffer), string, ptr);
	va_end(ptr);
	aos_printk("%s\n", hnat_log_buffer);
}

a_uint32_t nat_dev_id = 0;
static a_bool_t nat_mirror_status = A_FALSE;
static fal_port_t nat_mirror_port = 0;

sw_error_t
nat_helper_init(uint32_t dev_id, uint32_t portbmp)
{
	if (fal_switch_devid_get(SSDK_CURRENT_CHIP_TYPE, &nat_dev_id) == SW_OK) {
		/*Add egress port6 if GMAC1 is connected to port6 via SGMII*/
		if(1 == nat_dev_id) {
			fal_mirr_analysis_port_get(nat_dev_id, &nat_mirror_port);
			fal_mirr_port_eg_get(nat_dev_id, 0, &nat_mirror_status);

			fal_mirr_analysis_port_set(nat_dev_id, 6);
			fal_mirr_port_eg_set(nat_dev_id, 0, A_TRUE);
		}
		aos_printk("nat helper module dev_id:%d\n", nat_dev_id);
	} else {
		return SW_FAIL;
	}

	nat_helper_bg_task_init();
	host_helper_init(portbmp);
	napt_helper_init();
	nat_ipt_helper_init();

	aos_printk("Hello, nat helper module for 1.2!\n");

	return SW_OK;
}

sw_error_t
nat_helper_cleanup(uint32_t dev_id)
{
	if(1 == nat_dev_id) {
		fal_mirr_analysis_port_set(nat_dev_id, nat_mirror_port);
		fal_mirr_port_eg_set(nat_dev_id, 0, nat_mirror_status);
	}
    host_helper_exit();
    napt_helper_exit();
    nat_ipt_helper_exit();
	nat_helper_bg_task_exit();

    aos_printk("Goodbye, nat helper module!\n");

    return SW_OK;
}