Blame ip/iplink_bond_slave.c

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/*
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 * iplink_bond_slave.c	Bonding slave device support
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 *
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 *              This program is free software; you can redistribute it and/or
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 *              modify it under the terms of the GNU General Public License
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 *              as published by the Free Software Foundation; either version
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 *              2 of the License, or (at your option) any later version.
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 *
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 * Authors:     Jiri Pirko <jiri@resnulli.us>
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 */
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#include <stdio.h>
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#include <sys/socket.h>
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#include <linux/if_bonding.h>
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#include "rt_names.h"
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#include "utils.h"
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#include "ip_common.h"
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static void print_explain(FILE *f)
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{
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	fprintf(f, "Usage: ... bond_slave [ queue_id ID ]\n");
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}
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static void explain(void)
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{
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	print_explain(stderr);
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}
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static const char *slave_states[] = {
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	[BOND_STATE_ACTIVE] = "ACTIVE",
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	[BOND_STATE_BACKUP] = "BACKUP",
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};
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static void print_slave_state(FILE *f, struct rtattr *tb)
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{
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	unsigned int state = rta_getattr_u8(tb);
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	if (state >= ARRAY_SIZE(slave_states))
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		print_int(PRINT_ANY, "state_index", "state %d ", state);
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	else
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		print_string(PRINT_ANY,
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			     "state",
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			     "state %s ",
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			     slave_states[state]);
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}
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static const char *slave_mii_status[] = {
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	[BOND_LINK_UP] = "UP",
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	[BOND_LINK_FAIL] = "GOING_DOWN",
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	[BOND_LINK_DOWN] = "DOWN",
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	[BOND_LINK_BACK] = "GOING_BACK",
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};
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static void print_slave_mii_status(FILE *f, struct rtattr *tb)
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{
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	unsigned int status = rta_getattr_u8(tb);
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	if (status >= ARRAY_SIZE(slave_mii_status))
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		print_int(PRINT_ANY,
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			  "mii_status_index",
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			  "mii_status %d ",
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			  status);
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	else
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		print_string(PRINT_ANY,
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			     "mii_status",
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			     "mii_status %s ",
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			     slave_mii_status[status]);
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}
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static void print_slave_oper_state(FILE *fp, const char *name, __u16 state)
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{
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	open_json_array(PRINT_ANY, name);
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	print_string(PRINT_FP, NULL, " <", NULL);
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#define _PF(s, str) if (state & LACP_STATE_##s) {			\
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			state &= ~LACP_STATE_##s;			\
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			print_string(PRINT_ANY, NULL,			\
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				     state ? "%s," : "%s", str); }
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	_PF(LACP_ACTIVITY, "active");
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	_PF(LACP_TIMEOUT, "short_timeout");
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	_PF(AGGREGATION, "aggregating");
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	_PF(SYNCHRONIZATION, "in_sync");
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	_PF(COLLECTING, "collecting");
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	_PF(DISTRIBUTING, "distributing");
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	_PF(DEFAULTED, "defaulted");
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	_PF(EXPIRED, "expired");
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#undef _PF
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	close_json_array(PRINT_ANY, "> ");
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}
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static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
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{
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	SPRINT_BUF(b1);
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	if (!tb)
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		return;
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	if (tb[IFLA_BOND_SLAVE_STATE])
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		print_slave_state(f, tb[IFLA_BOND_SLAVE_STATE]);
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	if (tb[IFLA_BOND_SLAVE_MII_STATUS])
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		print_slave_mii_status(f, tb[IFLA_BOND_SLAVE_MII_STATUS]);
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	if (tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT])
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		print_int(PRINT_ANY,
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			  "link_failure_count",
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			  "link_failure_count %d ",
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			  rta_getattr_u32(tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT]));
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	if (tb[IFLA_BOND_SLAVE_PERM_HWADDR])
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		print_string(PRINT_ANY,
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			     "perm_hwaddr",
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			     "perm_hwaddr %s ",
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			     ll_addr_n2a(RTA_DATA(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
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					 RTA_PAYLOAD(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
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					 0, b1, sizeof(b1)));
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	if (tb[IFLA_BOND_SLAVE_QUEUE_ID])
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		print_int(PRINT_ANY,
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			  "queue_id",
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			  "queue_id %d ",
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			  rta_getattr_u16(tb[IFLA_BOND_SLAVE_QUEUE_ID]));
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	if (tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID])
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		print_int(PRINT_ANY,
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			  "ad_aggregator_id",
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			  "ad_aggregator_id %d ",
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			  rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));
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	if (tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]) {
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		__u8 state = rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]);
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		print_int(PRINT_ANY,
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			  "ad_actor_oper_port_state",
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			  "ad_actor_oper_port_state %d ",
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			  state);
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		print_slave_oper_state(f, "ad_actor_oper_port_state_str", state);
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	}
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	if (tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]) {
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		__u16 state = rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]);
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		print_int(PRINT_ANY,
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			  "ad_partner_oper_port_state",
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			  "ad_partner_oper_port_state %d ",
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			  state);
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		print_slave_oper_state(f, "ad_partner_oper_port_state_str", state);
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	}
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}
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static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv,
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				struct nlmsghdr *n)
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{
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	__u16 queue_id;
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	while (argc > 0) {
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		if (matches(*argv, "queue_id") == 0) {
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			NEXT_ARG();
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			if (get_u16(&queue_id, *argv, 0))
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				invarg("queue_id is invalid", *argv);
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			addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);
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		} else {
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			if (matches(*argv, "help") != 0)
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				fprintf(stderr,
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					"bond_slave: unknown option \"%s\"?\n",
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					*argv);
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			explain();
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			return -1;
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		}
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		argc--, argv++;
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	}
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	return 0;
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}
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static void bond_slave_print_help(struct link_util *lu, int argc, char **argv,
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				  FILE *f)
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{
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	print_explain(f);
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}
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struct link_util bond_slave_link_util = {
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	.id		= "bond_slave",
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	.maxattr	= IFLA_BOND_SLAVE_MAX,
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	.print_opt	= bond_slave_print_opt,
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	.parse_opt	= bond_slave_parse_opt,
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	.print_help	= bond_slave_print_help,
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	.parse_ifla_xstats = bond_parse_xstats,
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	.print_ifla_xstats = bond_print_xstats,
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};