iplink: add support for bonding slave

Signed-off-by: Jiri Pirko <jiri@resnulli.us>

ip/Makefile

@@ -5,7 +5,7 @@ IPOBJ=ip.o ipaddress.o ipaddrlabel.o iproute.o iprule.o ipnetns.o \
     iplink_vlan.o link_veth.o link_gre.o iplink_can.o \
     iplink_macvlan.o iplink_macvtap.o ipl2tp.o link_vti.o \
     iplink_vxlan.o tcp_metrics.o iplink_ipoib.o ipnetconf.o link_ip6tnl.o \
-    link_iptnl.o link_gre6.o iplink_bond.o iplink_hsr.o
+    link_iptnl.o link_gre6.o iplink_bond.o iplink_bond_slave.o iplink_hsr.o
 
 RTMONOBJ=rtmon.o
 

ip/iplink_bond_slave.c

+/*
+ * 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 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 >= sizeof(slave_states) / sizeof(slave_states[0]))
+		fprintf(f, "state %d ", state);
+	else
+		fprintf(f, "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);
+
+	fprintf(f, "mii_status %d ", status);
+	if (status >= sizeof(slave_mii_status) / sizeof(slave_mii_status[0]))
+		fprintf(f, "mii_status %d ", status);
+	else
+		fprintf(f, "mii_status %s ", slave_mii_status[status]);
+}
+
+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])
+		fprintf(f, "link_failure_count %d ",
+			rta_getattr_u32(tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT]));
+
+	if (tb[IFLA_BOND_SLAVE_PERM_HWADDR])
+		fprintf(f, "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])
+		fprintf(f, "queue_id %d ",
+			rta_getattr_u16(tb[IFLA_BOND_SLAVE_QUEUE_ID]));
+
+	if (tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID])
+		fprintf(f, "ad_aggregator_id %d ",
+			rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));
+}
+
+struct link_util bond_slave_link_util = {
+	.id		= "bond",
+	.maxattr	= IFLA_BOND_SLAVE_MAX,
+	.print_opt	= bond_slave_print_opt,
+	.slave		= true,
+};
+