/*

 * iplink_bond_slave.c	Bonding slave device support

 *

 *              This program is free software; you can redistribute it and/or

 *              modify it under the terms of the GNU General Public License

 *              as published by the Free Software Foundation; either version

 *              2 of the License, or (at your option) any later version.

 *

 * Authors:     Jiri Pirko <jiri@resnulli.us>

 */

#include <stdio.h>

#include <sys/socket.h>

#include <linux/if_bonding.h>

#include "rt_names.h"

#include "utils.h"

#include "ip_common.h"

static void print_explain(FILE *f)

{

	fprintf(f, "Usage: ... bond_slave [ queue_id ID ]\n");

}

static void explain(void)

{

	print_explain(stderr);

}

static const char *slave_states[] = {

	[BOND_STATE_ACTIVE] = "ACTIVE",

	[BOND_STATE_BACKUP] = "BACKUP",

};

static void print_slave_state(FILE *f, struct rtattr *tb)

{

	unsigned int state = rta_getattr_u8(tb);

	if (state >= ARRAY_SIZE(slave_states))

		print_int(PRINT_ANY, "state_index", "state %d ", state);

	else

		print_string(PRINT_ANY,

			     "state",

			     "state %s ",

			     slave_states[state]);

}

static const char *slave_mii_status[] = {

	[BOND_LINK_UP] = "UP",

	[BOND_LINK_FAIL] = "GOING_DOWN",

	[BOND_LINK_DOWN] = "DOWN",

	[BOND_LINK_BACK] = "GOING_BACK",

};

static void print_slave_mii_status(FILE *f, struct rtattr *tb)

{

	unsigned int status = rta_getattr_u8(tb);

	if (status >= ARRAY_SIZE(slave_mii_status))

		print_int(PRINT_ANY,

			  "mii_status_index",

			  "mii_status %d ",

			  status);

	else

		print_string(PRINT_ANY,

			     "mii_status",

			     "mii_status %s ",

			     slave_mii_status[status]);

}

static void print_slave_oper_state(FILE *fp, const char *name, __u16 state)

{

	open_json_array(PRINT_ANY, name);

	print_string(PRINT_FP, NULL, " <", NULL);

#define _PF(s, str) if (state & LACP_STATE_##s) {			\

			state &= ~LACP_STATE_##s;			\

			print_string(PRINT_ANY, NULL,			\

				     state ? "%s," : "%s", str); }

	_PF(LACP_ACTIVITY, "active");

	_PF(LACP_TIMEOUT, "short_timeout");

	_PF(AGGREGATION, "aggregating");

	_PF(SYNCHRONIZATION, "in_sync");

	_PF(COLLECTING, "collecting");

	_PF(DISTRIBUTING, "distributing");

	_PF(DEFAULTED, "defaulted");

	_PF(EXPIRED, "expired");

#undef _PF

	close_json_array(PRINT_ANY, "> ");

}

static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])

{

	SPRINT_BUF(b1);

	if (!tb)

		return;

	if (tb[IFLA_BOND_SLAVE_STATE])

		print_slave_state(f, tb[IFLA_BOND_SLAVE_STATE]);

	if (tb[IFLA_BOND_SLAVE_MII_STATUS])

		print_slave_mii_status(f, tb[IFLA_BOND_SLAVE_MII_STATUS]);

	if (tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT])

		print_int(PRINT_ANY,

			  "link_failure_count",

			  "link_failure_count %d ",

			  rta_getattr_u32(tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT]));

	if (tb[IFLA_BOND_SLAVE_PERM_HWADDR])

		print_string(PRINT_ANY,

			     "perm_hwaddr",

			     "perm_hwaddr %s ",

			     ll_addr_n2a(RTA_DATA(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),

					 RTA_PAYLOAD(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),

					 0, b1, sizeof(b1)));

	if (tb[IFLA_BOND_SLAVE_QUEUE_ID])

		print_int(PRINT_ANY,

			  "queue_id",

			  "queue_id %d ",

			  rta_getattr_u16(tb[IFLA_BOND_SLAVE_QUEUE_ID]));

	if (tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID])

		print_int(PRINT_ANY,

			  "ad_aggregator_id",

			  "ad_aggregator_id %d ",

			  rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));

	if (tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]) {

		__u8 state = rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]);

		print_int(PRINT_ANY,

			  "ad_actor_oper_port_state",

			  "ad_actor_oper_port_state %d ",

			  state);

		print_slave_oper_state(f, "ad_actor_oper_port_state_str", state);

	}

	if (tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]) {

		__u16 state = rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]);

		print_int(PRINT_ANY,

			  "ad_partner_oper_port_state",

			  "ad_partner_oper_port_state %d ",

			  state);

		print_slave_oper_state(f, "ad_partner_oper_port_state_str", state);

	}

}

static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv,

				struct nlmsghdr *n)

{

	__u16 queue_id;

	while (argc > 0) {

		if (matches(*argv, "queue_id") == 0) {

			NEXT_ARG();

			if (get_u16(&queue_id, *argv, 0))

				invarg("queue_id is invalid", *argv);

			addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);

		} else {

			if (matches(*argv, "help") != 0)

				fprintf(stderr,

					"bond_slave: unknown option \"%s\"?\n",

					*argv);

			explain();

			return -1;

		}

		argc--, argv++;

	}

	return 0;

}

static void bond_slave_print_help(struct link_util *lu, int argc, char **argv,

				  FILE *f)

{

	print_explain(f);

}

struct link_util bond_slave_link_util = {

	.id		= "bond_slave",

	.maxattr	= IFLA_BOND_SLAVE_MAX,

	.print_opt	= bond_slave_print_opt,

	.parse_opt	= bond_slave_parse_opt,

	.print_help	= bond_slave_print_help,

	.parse_ifla_xstats = bond_parse_xstats,

	.print_ifla_xstats = bond_print_xstats,

};