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 const char *slave_states[] = {
  21         [BOND_STATE_ACTIVE] = "ACTIVE",
  22         [BOND_STATE_BACKUP] = "BACKUP",
  23 };
  24
  25 static void print_slave_state(FILE *f, struct rtattr *tb)
  26 {
  27         unsigned int state = rta_getattr_u8(tb);
  28
  29         if (state >= sizeof(slave_states) / sizeof(slave_states[0]))
  30                 fprintf(f, "state %d ", state);
  31         else
  32                 fprintf(f, "state %s ", slave_states[state]);
  33 }
  34
  35 static const char *slave_mii_status[] = {
  36         [BOND_LINK_UP] = "UP",
  37         [BOND_LINK_FAIL] = "GOING_DOWN",
  38         [BOND_LINK_DOWN] = "DOWN",
  39         [BOND_LINK_BACK] = "GOING_BACK",
  40 };
  41
  42 static void print_slave_mii_status(FILE *f, struct rtattr *tb)
  43 {
  44         unsigned int status = rta_getattr_u8(tb);
  45
  46         if (status >= sizeof(slave_mii_status) / sizeof(slave_mii_status[0]))
  47                 fprintf(f, "mii_status %d ", status);
  48         else
  49                 fprintf(f, "mii_status %s ", slave_mii_status[status]);
  50 }
  51
  52 static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
  53 {
  54         SPRINT_BUF(b1);
  55         if (!tb)
  56                 return;
  57
  58         if (tb[IFLA_BOND_SLAVE_STATE])
  59                 print_slave_state(f, tb[IFLA_BOND_SLAVE_STATE]);
  60
  61         if (tb[IFLA_BOND_SLAVE_MII_STATUS])
  62                 print_slave_mii_status(f, tb[IFLA_BOND_SLAVE_MII_STATUS]);
  63
  64         if (tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT])
  65                 fprintf(f, "link_failure_count %d ",
  66                         rta_getattr_u32(tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT]));
  67
  68         if (tb[IFLA_BOND_SLAVE_PERM_HWADDR])
  69                 fprintf(f, "perm_hwaddr %s ",
  70                         ll_addr_n2a(RTA_DATA(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
  71                                     RTA_PAYLOAD(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
  72                                     0, b1, sizeof(b1)));
  73
  74         if (tb[IFLA_BOND_SLAVE_QUEUE_ID])
  75                 fprintf(f, "queue_id %d ",
  76                         rta_getattr_u16(tb[IFLA_BOND_SLAVE_QUEUE_ID]));
  77
  78         if (tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID])
  79                 fprintf(f, "ad_aggregator_id %d ",
  80                         rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));
  81
  82         if (tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE])
  83                 fprintf(f, "ad_actor_oper_port_state %d\n",
  84                         rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]));
  85
  86         if (tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE])
  87                 fprintf(f, "ad_partner_oper_port_state %d\n",
  88                         rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]));
  89 }
  90
  91 static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv,
  92                                 struct nlmsghdr *n)
  93 {
  94         __u16 queue_id;
  95
  96         while (argc > 0) {
  97                 if (matches(*argv, "queue_id") == 0) {
  98                         NEXT_ARG();
  99                         if (get_u16(&queue_id, *argv, 0))
 100                                 invarg("queue_id is invalid", *argv);
 101                         addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);
 102                 }
 103                 argc--, argv++;
 104         }
 105
 106         return 0;
 107 }
 108
 109 struct link_util bond_slave_link_util = {
 110         .id             = "bond",
 111         .maxattr        = IFLA_BOND_SLAVE_MAX,
 112         .print_opt      = bond_slave_print_opt,
 113         .parse_opt      = bond_slave_parse_opt,
 114         .slave          = true,
 115 };
 116