net/bonding/files/lib/netifd/proto/bonding.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (C) 2018 TDT AG <development@tdt.de>
   4 #
   5 # This is free software, licensed under the GNU General Public License v2.
   6 # See https://www.gnu.org/licenses/gpl-2.0.txt for more information.
   7 #
   8
   9 . /lib/functions.sh
  10 . ../netifd-proto.sh
  11
  12 init_proto "$@"
  13
  14 INCLUDE_ONLY=1
  15
  16 BONDING_MASTERS="/sys/class/net/bonding_masters"
  17
  18 set_driver_values() {
  19         local varname
  20
  21         for varname in "$@"; do
  22                 local value
  23                 json_get_var value "$varname"
  24
  25                 [ -n "$value" ] && echo "$value" > /sys/class/net/"$link"/bonding/"$varname"
  26         done
  27 }
  28
  29 proto_bonding_init_config() {
  30         no_device=1
  31         available=1
  32
  33         proto_config_add_string "ifname"
  34
  35         proto_config_add_string "ipaddr"
  36         proto_config_add_string "netmask"
  37
  38         proto_config_add_string "bonding_policy"
  39         proto_config_add_string "link_monitoring"
  40         proto_config_add_array "slaves"
  41         proto_config_add_string "all_slaves_active"
  42
  43         proto_config_add_string "min_links"
  44         proto_config_add_string "ad_actor_sys_prio"
  45         proto_config_add_string "ad_actor_system"
  46         proto_config_add_string "ad_select"
  47         proto_config_add_string "lacp_rate"
  48         proto_config_add_string "packets_per_slave"
  49         proto_config_add_string "xmit_hash_policy"
  50         proto_config_add_string "primary"
  51         proto_config_add_string "primary_reselect"
  52         proto_config_add_string "lp_interval"
  53         proto_config_add_string "tlb_dynamic_lb"
  54         proto_config_add_string "resend_igmp"
  55         proto_config_add_string "fail_over_mac"
  56         proto_config_add_string "num_grat_arp__num_unsol_na"
  57
  58         proto_config_add_string "arp_interval"
  59         proto_config_add_string "arp_ip_target"
  60         proto_config_add_string "arp_all_targets"
  61         proto_config_add_string "arp_validate"
  62
  63         proto_config_add_string "miimon"
  64         proto_config_add_string "downdelay"
  65         proto_config_add_string "updelay"
  66         proto_config_add_string "use_carrier"
  67 }
  68
  69 proto_bonding_add_slave() {
  70         local slave=$1
  71         local idx=$2
  72         local cfg=$3
  73         local link=$4
  74
  75         if [ ! -e "/sys/class/net/$slave" ]; then
  76                 echo "$cfg" "No slave device $slave found"
  77                 proto_notify_error "$cfg" NO_DEVICE
  78                 proto_block_restart "$cfg"
  79                 return
  80         fi
  81
  82         ip link set dev "$slave" down
  83
  84         sleep 1
  85
  86         echo "+$slave" > /sys/class/net/"$link"/bonding/slaves
  87
  88         ip link set dev "$slave" up
  89 }
  90
  91 proto_bonding_setup() {
  92         local cfg="$1"
  93         local link="bond-$cfg"
  94
  95         # Check for loaded kernel bonding driver (/sys/class/net/bonding_masters exists)
  96         [ -f "$BONDING_MASTERS" ] || {
  97                 echo "$cfg" "setup: bonding_masters does not exist in sysfs (kernel module not loaded?)"
  98                 proto_notify_error "$cfg" BONDING_MASTER_DOES_NOT_EXIST
  99                 proto_block_restart "$cfg"
 100                 return
 101         }
 102
 103         # Add bonding interface to system
 104         echo "+$link" > "$BONDING_MASTERS"
 105
 106         # Set bonding policy (with corresponding parameters)
 107         local bonding_policy
 108         json_get_vars bonding_policy
 109
 110         case "$bonding_policy" in
 111
 112                 802.3ad)
 113                         echo "$bonding_policy" > /sys/class/net/"$link"/bonding/mode
 114                         set_driver_values min_links ad_actor_sys_prio ad_actor_system ad_select lacp_rate xmit_hash_policy
 115                 ;;
 116
 117                 balance-rr)
 118                         echo "$bonding_policy" > /sys/class/net/"$link"/bonding/mode
 119                         set_driver_values packets_per_slave xmit_hash_policy
 120                 ;;
 121
 122                 balance-tlb)
 123                         echo "$bonding_policy" > /sys/class/net/"$link"/bonding/mode
 124                         set_driver_values primary primary_reselect lp_interval tlb_dynamic_lb resend_igmp xmit_hash_policy
 125                 ;;
 126
 127                 balance-alb)
 128                         echo "$bonding_policy" > /sys/class/net/"$link"/bonding/mode
 129                         set_driver_values primary primary_reselect lp_interval tlb_dynamic_lb resend_igmp xmit_hash_policy
 130                 ;;
 131
 132                 balance-xor)
 133                         echo "$bonding_policy" > /sys/class/net/"$link"/bonding/mode
 134                         set_driver_values xmit_hash_policy
 135                 ;;
 136
 137                 broadcast)
 138                         echo "$bonding_policy" > /sys/class/net/"$link"/bonding/mode
 139                 ;;
 140
 141                 active-backup)
 142                         echo "$bonding_policy" > /sys/class/net/"$link"/bonding/mode
 143                         set_driver_values primary primary_reselect fail_over_mac num_grat_arp__num_unsol_na xmit_hash_policy
 144                 ;;
 145         esac
 146
 147         # Set link monitoring (with corresponding parameters)
 148         local link_monitoring
 149         json_get_vars link_monitoring
 150
 151         case "$link_monitoring" in
 152
 153                 arp)
 154                         local arp_interval arp_ip_target arp_all_targets arp_validate
 155                         json_get_vars arp_interval arp_ip_target arp_all_targets arp_validate
 156
 157                         [ -n "$arp_interval" -a "$arp_interval" != 0 ] && echo "$arp_interval" > /sys/class/net/"$link"/bonding/arp_interval
 158
 159                         IFS=' '
 160                         for target in $arp_ip_target; do
 161                                 echo "+$target" > /sys/class/net/"$link"/bonding/arp_ip_target
 162                         done
 163
 164                         [ -n "$arp_all_targets" ] && echo "$arp_all_targets" > /sys/class/net/"$link"/bonding/arp_all_targets
 165                         [ -n "$arp_validate" ] && echo "$arp_validate" > /sys/class/net/"$link"/bonding/arp_validate
 166                 ;;
 167
 168                 mii)
 169                         local miimon downdelay updelay use_carrier
 170                         json_get_vars miimon downdelay updelay use_carrier
 171
 172                         [ -n "$miimon" -a "$miimon" != 0 ] && echo "$miimon" > /sys/class/net/"$link"/bonding/miimon
 173                         [ -n "$downdelay" ] && echo "$downdelay" > /sys/class/net/"$link"/bonding/downdelay
 174                         [ -n "$updelay" ] && echo "$updelay" > /sys/class/net/"$link"/bonding/updelay
 175                         [ -n "$use_carrier" ] && echo "$use_carrier" > /sys/class/net/"$link"/bonding/use_carrier
 176                 ;;
 177         esac
 178
 179         # Add slaves to bonding interface
 180         local slaves
 181         json_get_vars slaves
 182         json_for_each_item proto_bonding_add_slave slaves "$cfg" "$link"
 183
 184         [ -n "$all_slaves_active" ] && echo "$all_slaves_active" > /sys/class/net/"$link"/bonding/all_slaves_active
 185
 186         local ipaddr netmask
 187         json_get_vars ipaddr netmask
 188
 189         # ATTENTION
 190         #All json vars have to be read before the line below, as the
 191         # json object will be overwritten by proto_init_update
 192         # ATTENTION
 193
 194         proto_init_update "$link" 1
 195
 196         # If ipaddr is configured, configure the ip to the interface
 197         [ -n "$ipaddr" ] && proto_add_ipv4_address "$ipaddr" "$netmask"
 198
 199         proto_send_update "$cfg"
 200 }
 201
 202 proto_bonding_teardown() {
 203         local cfg="$1"
 204         local link="bond-$cfg"
 205
 206         # Check for loaded kernel bonding driver (/sys/class/net/bonding_masters exists)
 207         [ -f "$BONDING_MASTERS" ] || {
 208                 echo "$cfg" "teardown: bonding_masters does not exist in sysfs (kernel module not loaded?)"
 209                 proto_notify_error "$cfg" BONDING_MASTER_DOES_NOT_EXIST
 210                 proto_block_restart "$cfg"
 211                 return
 212         }
 213
 214         echo "-$link" > /sys/class/net/bonding_masters
 215         logger "bonding_teardown($1): $2"
 216 }
 217
 218 add_protocol bonding