ip/iplink_bond_slave.c

   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@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                 fprintf(f, "state %d ", state);
  41         else
  42                 fprintf(f, "state %s ", slave_states[state]);
  43 }
  44
  45 static const char *slave_mii_status[] = {
  46         [BOND_LINK_UP] = "UP",
  47         [BOND_LINK_FAIL] = "GOING_DOWN",
  48         [BOND_LINK_DOWN] = "DOWN",
  49         [BOND_LINK_BACK] = "GOING_BACK",
  50 };
  51
  52 static void print_slave_mii_status(FILE *f, struct rtattr *tb)
  53 {
  54         unsigned int status = rta_getattr_u8(tb);
  55
  56         if (status >= ARRAY_SIZE(slave_mii_status))
  57                 fprintf(f, "mii_status %d ", status);
  58         else
  59                 fprintf(f, "mii_status %s ", slave_mii_status[status]);
  60 }
  61
  62 static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
  63 {
  64         SPRINT_BUF(b1);
  65         if (!tb)
  66                 return;
  67
  68         if (tb[IFLA_BOND_SLAVE_STATE])
  69                 print_slave_state(f, tb[IFLA_BOND_SLAVE_STATE]);
  70
  71         if (tb[IFLA_BOND_SLAVE_MII_STATUS])
  72                 print_slave_mii_status(f, tb[IFLA_BOND_SLAVE_MII_STATUS]);
  73
  74         if (tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT])
  75                 fprintf(f, "link_failure_count %d ",
  76                         rta_getattr_u32(tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT]));
  77
  78         if (tb[IFLA_BOND_SLAVE_PERM_HWADDR])
  79                 fprintf(f, "perm_hwaddr %s ",
  80                         ll_addr_n2a(RTA_DATA(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
  81                                     RTA_PAYLOAD(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
  82                                     0, b1, sizeof(b1)));
  83
  84         if (tb[IFLA_BOND_SLAVE_QUEUE_ID])
  85                 fprintf(f, "queue_id %d ",
  86                         rta_getattr_u16(tb[IFLA_BOND_SLAVE_QUEUE_ID]));
  87
  88         if (tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID])
  89                 fprintf(f, "ad_aggregator_id %d ",
  90                         rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));
  91
  92         if (tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE])
  93                 fprintf(f, "ad_actor_oper_port_state %d ",
  94                         rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]));
  95
  96         if (tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE])
  97                 fprintf(f, "ad_partner_oper_port_state %d ",
  98                         rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]));
  99 }
 100
 101 static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv,
 102                                 struct nlmsghdr *n)
 103 {
 104         __u16 queue_id;
 105
 106         while (argc > 0) {
 107                 if (matches(*argv, "queue_id") == 0) {
 108                         NEXT_ARG();
 109                         if (get_u16(&queue_id, *argv, 0))
 110                                 invarg("queue_id is invalid", *argv);
 111                         addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);
 112                 } else {
 113                         if (matches(*argv, "help") != 0)
 114                                 fprintf(stderr,
 115                                         "bond_slave: unknown option \"%s\"?\n",
 116                                         *argv);
 117                         explain();
 118                         return -1;
 119                 }
 120                 argc--, argv++;
 121         }
 122
 123         return 0;
 124 }
 125
 126 static void bond_slave_print_help(struct link_util *lu, int argc, char **argv,
 127                                   FILE *f)
 128 {
 129         print_explain(f);
 130 }
 131
 132 struct link_util bond_slave_link_util = {
 133         .id             = "bond_slave",
 134         .maxattr        = IFLA_BOND_SLAVE_MAX,
 135         .print_opt      = bond_slave_print_opt,
 136         .parse_opt      = bond_slave_parse_opt,
 137         .print_help     = bond_slave_print_help,
 138 };