| 1 | # relay.sh - Abstract relayd protocol backend |
| 2 | # Copyright (c) 2011 OpenWrt.org |
| 3 | |
| 4 | # Hook into scan_interfaces() to synthesize a .device option |
| 5 | # This is needed for /sbin/ifup to properly dispatch control |
| 6 | # to setup_interface_relay() even if no .ifname is set in |
| 7 | # the configuration. |
| 8 | scan_relay() { |
| 9 | config_set "$1" device "relay-$1" |
| 10 | } |
| 11 | |
| 12 | # No coldplugging needed, relayd will be restarted if one of |
| 13 | # the member interfaces goes up or down |
| 14 | #coldplug_interface_relay() { |
| 15 | # setup_interface_relay "relay-$1" "$1" |
| 16 | #} |
| 17 | |
| 18 | setup_interface_relay() { |
| 19 | local iface="$1" |
| 20 | local cfg="$2" |
| 21 | local link="relay-$cfg" |
| 22 | |
| 23 | local args="" |
| 24 | local ifaces="" |
| 25 | |
| 26 | resolve_ifname() { |
| 27 | grep -qs "^ *$1:" /proc/net/dev && { |
| 28 | append args "-I $1" |
| 29 | append ifaces "$1" |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | resolve_network() { |
| 34 | local ifn |
| 35 | config_get ifn "$1" ifname |
| 36 | resolve_ifname "$ifn" |
| 37 | } |
| 38 | |
| 39 | local net networks |
| 40 | config_get networks "$cfg" network |
| 41 | for net in $networks; do |
| 42 | resolve_network "$net" |
| 43 | done |
| 44 | |
| 45 | local ifn ifnames |
| 46 | config_get ifnames "$cfg" ifname |
| 47 | for ifn in $ifnames; do |
| 48 | resolve_ifname "$ifn" |
| 49 | done |
| 50 | |
| 51 | local ipaddr |
| 52 | config_get ipaddr "$cfg" ipaddr |
| 53 | [ -n "$ipaddr" ] && append args "-L $ipaddr" |
| 54 | |
| 55 | local gateway |
| 56 | config_get gateway "$cfg" gateway |
| 57 | [ -n "$gateway" ] && append args "-G $gateway" |
| 58 | |
| 59 | local expiry # = 30 |
| 60 | config_get expiry "$cfg" expiry |
| 61 | [ -n "$expiry" ] && append args "-t $expiry" |
| 62 | |
| 63 | local retry # = 5 |
| 64 | config_get retry "$cfg" retry |
| 65 | [ -n "$retry" ] && append args "-p $retry" |
| 66 | |
| 67 | local table # = 16800 |
| 68 | config_get table "$cfg" table |
| 69 | [ -n "$table" ] && append args "-T $table" |
| 70 | |
| 71 | local fwd_bcast # = 1 |
| 72 | config_get_bool fwd_bcast "$cfg" forward_bcast 1 |
| 73 | [ $fwd_bcast -eq 1 ] && append args "-B" |
| 74 | |
| 75 | local fwd_dhcp # = 1 |
| 76 | config_get_bool fwd_dhcp "$cfg" forward_dhcp 1 |
| 77 | [ $fwd_dhcp -eq 1 ] && append args "-D" |
| 78 | |
| 79 | start-stop-daemon -b -S -m -p /var/run/$link.pid \ |
| 80 | -x /usr/sbin/relayd -- $args |
| 81 | |
| 82 | uci_set_state network "$cfg" device "$ifaces" |
| 83 | |
| 84 | env -i ACTION="ifup" DEVICE="$link" INTERFACE="$cfg" PROTO="relay" \ |
| 85 | /sbin/hotplug-call iface |
| 86 | } |
| 87 | |
| 88 | stop_interface_relay() { |
| 89 | local cfg="$1" |
| 90 | local link="relay-$cfg" |
| 91 | |
| 92 | env -i ACTION="ifdown" DEVICE="$link" INTERFACE="$cfg" PROTO="relay" \ |
| 93 | /sbin/hotplug-call iface |
| 94 | |
| 95 | service_kill relayd "/var/run/$link.pid" |
| 96 | } |
| 97 | |
| 98 | |
