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/* OsmoHLR VTY implementation */

/* (C) 2016 sysmocom s.f.m.c. GmbH <info@sysmocom.de>
 * All Rights Reserved
 *
 * Author: Neels Hofmeyr <nhofmeyr@sysmocom.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include <osmocom/core/talloc.h>
#include <osmocom/vty/vty.h>
#include <osmocom/vty/command.h>
#include <osmocom/vty/logging.h>

#include "hlr_vty.h"

static struct hlr *g_hlr = NULL;

struct cmd_node hlr_node = {
	HLR_NODE,
	"%s(config-hlr)# ",
	1,
};

DEFUN(cfg_hlr,
      cfg_hlr_cmd,
      "hlr",
      "Configure the HLR")
{
	vty->node = HLR_NODE;
	return CMD_SUCCESS;
}

struct cmd_node gsup_node = {
	GSUP_NODE,
	"%s(config-hlr-gsup)# ",
	1,
};

DEFUN(cfg_gsup,
      cfg_gsup_cmd,
      "gsup",
      "Configure GSUP options")
{
	vty->node = GSUP_NODE;
	return CMD_SUCCESS;
}

static int config_write_hlr(struct vty *vty)
{
	vty_out(vty, "hlr%s", VTY_NEWLINE);
	return CMD_SUCCESS;
}

static int config_write_hlr_gsup(struct vty *vty)
{
	vty_out(vty, " gsup%s", VTY_NEWLINE);
	if (g_hlr->gsup_bind_addr)
		vty_out(vty, "  bind ip %s%s", g_hlr->gsup_bind_addr, VTY_NEWLINE);
	return CMD_SUCCESS;
}

DEFUN(cfg_hlr_gsup_bind_ip,
      cfg_hlr_gsup_bind_ip_cmd,
      "bind ip A.B.C.D",
      "Listen/Bind related socket option\n"
      IP_STR
      "IPv4 Address to bind the GSUP interface to\n")
{
	if(g_hlr->gsup_bind_addr)
		talloc_free(g_hlr->gsup_bind_addr);
	g_hlr->gsup_bind_addr = talloc_strdup(g_hlr, argv[0]);

	return CMD_SUCCESS;
}

int hlr_vty_go_parent(struct vty *vty)
{
	switch (vty->node) {
	case GSUP_NODE:
		vty->node = HLR_NODE;
		vty->index = NULL;
		break;
	default:
	case HLR_NODE:
		vty->node = CONFIG_NODE;
		vty->index = NULL;
		break;
	case CONFIG_NODE:
		vty->node = ENABLE_NODE;
		vty->index = NULL;
		break;
	}

	return vty->node;
}

int hlr_vty_is_config_node(struct vty *vty, int node)
{
	switch (node) {
	/* add items that are not config */
	case CONFIG_NODE:
		return 0;

	default:
		return 1;
	}
}

void hlr_vty_init(struct hlr *hlr, const struct log_info *cat)
{
	g_hlr = hlr;

	logging_vty_add_cmds(cat);

	install_element(CONFIG_NODE, &cfg_hlr_cmd);
	install_node(&hlr_node, config_write_hlr);
	install_default(HLR_NODE);

	install_element(HLR_NODE, &cfg_gsup_cmd);
	install_node(&gsup_node, config_write_hlr_gsup);
	install_default(GSUP_NODE);

	install_element(GSUP_NODE, &cfg_hlr_gsup_bind_ip_cmd);
}