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                 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 print_slave_oper_state(FILE *fp, const char *name, __u16 state)
  72 {
  73         open_json_array(PRINT_ANY, name);
  74         print_string(PRINT_FP, NULL, " <", NULL);
  75 #define _PF(s, str) if (state & LACP_STATE_##s) {                       \
  76                         state &= ~LACP_STATE_##s;                       \
  77                         print_string(PRINT_ANY, NULL,                   \
  78                                      state ? "%s," : "%s", str); }
  79         _PF(LACP_ACTIVITY, "active");
  80         _PF(LACP_TIMEOUT, "short_timeout");
  81         _PF(AGGREGATION, "aggregating");
  82         _PF(SYNCHRONIZATION, "in_sync");
  83         _PF(COLLECTING, "collecting");
  84         _PF(DISTRIBUTING, "distributing");
  85         _PF(DEFAULTED, "defaulted");
  86         _PF(EXPIRED, "expired");
  87 #undef _PF
  88         close_json_array(PRINT_ANY, "> ");
  89 }
  90
  91 static void bond_slave_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
  92 {
  93         SPRINT_BUF(b1);
  94         if (!tb)
  95                 return;
  96
  97         if (tb[IFLA_BOND_SLAVE_STATE])
  98                 print_slave_state(f, tb[IFLA_BOND_SLAVE_STATE]);
  99
 100         if (tb[IFLA_BOND_SLAVE_MII_STATUS])
 101                 print_slave_mii_status(f, tb[IFLA_BOND_SLAVE_MII_STATUS]);
 102
 103         if (tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT])
 104                 print_int(PRINT_ANY,
 105                           "link_failure_count",
 106                           "link_failure_count %d ",
 107                           rta_getattr_u32(tb[IFLA_BOND_SLAVE_LINK_FAILURE_COUNT]));
 108
 109         if (tb[IFLA_BOND_SLAVE_PERM_HWADDR])
 110                 print_string(PRINT_ANY,
 111                              "perm_hwaddr",
 112                              "perm_hwaddr %s ",
 113                              ll_addr_n2a(RTA_DATA(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
 114                                          RTA_PAYLOAD(tb[IFLA_BOND_SLAVE_PERM_HWADDR]),
 115                                          0, b1, sizeof(b1)));
 116
 117         if (tb[IFLA_BOND_SLAVE_QUEUE_ID])
 118                 print_int(PRINT_ANY,
 119                           "queue_id",
 120                           "queue_id %d ",
 121                           rta_getattr_u16(tb[IFLA_BOND_SLAVE_QUEUE_ID]));
 122
 123         if (tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID])
 124                 print_int(PRINT_ANY,
 125                           "ad_aggregator_id",
 126                           "ad_aggregator_id %d ",
 127                           rta_getattr_u16(tb[IFLA_BOND_SLAVE_AD_AGGREGATOR_ID]));
 128
 129         if (tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]) {
 130                 __u8 state = rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE]);
 131
 132                 print_int(PRINT_ANY,
 133                           "ad_actor_oper_port_state",
 134                           "ad_actor_oper_port_state %d ",
 135                           state);
 136                 print_slave_oper_state(f, "ad_actor_oper_port_state_str", state);
 137         }
 138
 139         if (tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]) {
 140                 __u16 state = rta_getattr_u8(tb[IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE]);
 141
 142                 print_int(PRINT_ANY,
 143                           "ad_partner_oper_port_state",
 144                           "ad_partner_oper_port_state %d ",
 145                           state);
 146                 print_slave_oper_state(f, "ad_partner_oper_port_state_str", state);
 147         }
 148 }
 149
 150 static int bond_slave_parse_opt(struct link_util *lu, int argc, char **argv,
 151                                 struct nlmsghdr *n)
 152 {
 153         __u16 queue_id;
 154
 155         while (argc > 0) {
 156                 if (matches(*argv, "queue_id") == 0) {
 157                         NEXT_ARG();
 158                         if (get_u16(&queue_id, *argv, 0))
 159                                 invarg("queue_id is invalid", *argv);
 160                         addattr16(n, 1024, IFLA_BOND_SLAVE_QUEUE_ID, queue_id);
 161                 } else {
 162                         if (matches(*argv, "help") != 0)
 163                                 fprintf(stderr,
 164                                         "bond_slave: unknown option \"%s\"?\n",
 165                                         *argv);
 166                         explain();
 167                         return -1;
 168                 }
 169                 argc--, argv++;
 170         }
 171
 172         return 0;
 173 }
 174
 175 static void bond_slave_print_help(struct link_util *lu, int argc, char **argv,
 176                                   FILE *f)
 177 {
 178         print_explain(f);
 179 }
 180
 181 struct link_util bond_slave_link_util = {
 182         .id             = "bond_slave",
 183         .maxattr        = IFLA_BOND_SLAVE_MAX,
 184         .print_opt      = bond_slave_print_opt,
 185         .parse_opt      = bond_slave_parse_opt,
 186         .print_help     = bond_slave_print_help,
 187         .parse_ifla_xstats = bond_parse_xstats,
 188         .print_ifla_xstats = bond_print_xstats,
 189 };