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      1 /*
      2  * iplink_bond_slave.c	Bonding slave device support
      3  *
      4  *              This program is free software; you can redistribute it and/or
      5  *              modify it under the terms of the GNU General Public License
      6  *              as published by the Free Software Foundation; either version
      7  *              2 of the License, or (at your option) any later version.
      8  *
      9  * Authors:     Jiri Pirko <jiri (at) resnulli.us>
     10  */
     11 
     12 #include <stdio.h>
     13 #include <sys/socket.h>
     14 #include <linux/if_bonding.h>
     15 
     16 #include "rt_names.h"
     17 #include "utils.h"
     18 #include "ip_common.h"
     19 
     20 static void print_explain(FILE *f)
     21 {
     22 	fprintf(f, "Usage: ... bond_slave [ queue_id ID ]\n");
     23 }
     24 
     25 static void explain(void)
     26 {
     27 	print_explain(stderr);
     28 }
     29 
     30 static const char *slave_states[] = {
     31 	[BOND_STATE_ACTIVE] = "ACTIVE",
     32 	[BOND_STATE_BACKUP] = "BACKUP",
     33 };
     34 
     35 static void print_slave_state(FILE *f, struct rtattr *tb)
     36 {
     37 	unsigned int state = rta_getattr_u8(tb);
     38 
     39 	if (state >= ARRAY_SIZE(slave_states))
     40 		print_int(PRINT_ANY, "state_index", "state %d ", state);
     41 	else
     42 		print_string(PRINT_ANY,
     43 			     "state",
     44 			     "state %s ",
     45 			     slave_states[state]);
     46 }
     47 
     48 static const char *slave_mii_status[] = {
     49 	[BOND_LINK_UP] = "UP",
     50 	[BOND_LINK_FAIL] = "GOING_DOWN",
     51 	[BOND_LINK_DOWN] = "DOWN",
     52 	[BOND_LINK_BACK] = "GOING_BACK",
     53 };
     54 
     55 static void print_slave_mii_status(FILE *f, struct rtattr *tb)
     56 {
     57 	unsigned int status = rta_getattr_u8(tb);
     58 
     59 	if (status >= ARRAY_SIZE(slave_mii_status))
     60 		print_int(PRINT_ANY,
     61 			  "mii_status_index",
     62 			  "mii_status %d ",
     63 			  status);
     64 	else
     65 		print_string(PRINT_ANY,
     66 			     "mii_status",
     67 			     "mii_status %s ",
     68 			     slave_mii_status[status]);
     69 }
     70 
     71 static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
     72 {
     73 	SPRINT_BUF(b1);
     74 	if (!tb)
     75 		return;
     76 
     77 	if (tb[IFLA_BOND_SLAVE_STATE])
     78 		print_slave_state(f, tb[IFLA_BOND_SLAVE_STATE]);
     79 
     80 	if (tb[IFLA_BOND_SLAVE_MII_STATUS])
     81 		print_slave_mii_status(f, tb[IFLA_BOND_SLAVE_MII_STATUS]);
     82 
     83 	if (tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT])
     84 		print_int(PRINT_ANY,
     85 			  "link_failure_count",
     86 			  "link_failure_count %d ",
     87 			  rta_getattr_u32(tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT]));
     88 
     89 	if (tb[IFLA_BOND_SLAVE_PERM_HWADDR])
     90 		print_string(PRINT_ANY,
     91 			     "perm_hwaddr",
     92 			     "perm_hwaddr %s ",
     93 			     ll_addr_n2a(RTA_DATA(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
     94 					 RTA_PAYLOAD(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
     95 					 0, b1, sizeof(b1)));
     96 
     97 	if (tb[IFLA_BOND_SLAVE_QUEUE_ID])
     98 		print_int(PRINT_ANY,
     99 			  "queue_id",
    100 			  "queue_id %d ",
    101 			  rta_getattr_u16(tb[IFLA_BOND_SLAVE_QUEUE_ID]));
    102 
    103 	if (tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID])
    104 		print_int(PRINT_ANY,
    105 			  "ad_aggregator_id",
    106 			  "ad_aggregator_id %d ",
    107 			  rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));
    108 
    109 	if (tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE])
    110 		print_int(PRINT_ANY,
    111 			  "ad_actor_oper_port_state",
    112 			  "ad_actor_oper_port_state %d ",
    113 			  rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]));
    114 
    115 	if (tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE])
    116 		print_int(PRINT_ANY,
    117 			  "ad_partner_oper_port_state",
    118 			  "ad_partner_oper_port_state %d ",
    119 			  rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]));
    120 }
    121 
    122 static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv,
    123 				struct nlmsghdr *n)
    124 {
    125 	__u16 queue_id;
    126 
    127 	while (argc > 0) {
    128 		if (matches(*argv, "queue_id") == 0) {
    129 			NEXT_ARG();
    130 			if (get_u16(&queue_id, *argv, 0))
    131 				invarg("queue_id is invalid", *argv);
    132 			addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);
    133 		} else {
    134 			if (matches(*argv, "help") != 0)
    135 				fprintf(stderr,
    136 					"bond_slave: unknown option \"%s\"?\n",
    137 					*argv);
    138 			explain();
    139 			return -1;
    140 		}
    141 		argc--, argv++;
    142 	}
    143 
    144 	return 0;
    145 }
    146 
    147 static void bond_slave_print_help(struct link_util *lu, int argc, char **argv,
    148 				  FILE *f)
    149 {
    150 	print_explain(f);
    151 }
    152 
    153 struct link_util bond_slave_link_util = {
    154 	.id		= "bond_slave",
    155 	.maxattr	= IFLA_BOND_SLAVE_MAX,
    156 	.print_opt	= bond_slave_print_opt,
    157 	.parse_opt	= bond_slave_parse_opt,
    158 	.print_help	= bond_slave_print_help,
    159 };
    160