package/network/config/gre/files/gre.sh

   1 #!/bin/sh
   2
   3 [ -n "$INCLUDE_ONLY" ] || {
   4         . /lib/functions.sh
   5         . /lib/functions/network.sh
   6         . ../netifd-proto.sh
   7         init_proto "$@"
   8 }
   9
  10 gre_generic_setup() {
  11         local cfg="$1"
  12         local mode="$2"
  13         local local="$3"
  14         local remote="$4"
  15         local link="$5"
  16         local mtu ttl tos zone ikey okey icsum ocsum iseqno oseqno multicast
  17         json_get_vars mtu ttl tos zone ikey okey icsum ocsum iseqno oseqno multicast
  18
  19         [ -z "$zone" ] && zone="wan"
  20         [ -z "$multicast" ] && multicast=1
  21
  22         proto_init_update "$link" 1
  23
  24         proto_add_tunnel
  25         json_add_string mode "$mode"
  26         json_add_int mtu "${mtu:-1280}"
  27         [ -n "$df" ] && json_add_boolean df "$df"
  28         json_add_int ttl "${ttl:-64}"
  29         [ -n "$tos" ] && json_add_string tos "$tos"
  30         json_add_boolean multicast "$multicast"
  31         json_add_string local "$local"
  32         json_add_string remote "$remote"
  33         [ -n "$tunlink" ] && json_add_string link "$tunlink"
  34         json_add_string info "${ikey:-0},${okey:-0},${icsum:-0},${ocsum:-0},${iseqno:-0},${oseqno:-0}"
  35         proto_close_tunnel
  36
  37         proto_add_data
  38         [ -n "$zone" ] && json_add_string zone "$zone"
  39         proto_close_data
  40
  41         proto_send_update "$cfg"
  42 }
  43
  44 gre_setup() {
  45         local cfg="$1"
  46         local mode="$2"
  47
  48         local ipaddr peeraddr
  49         json_get_vars df ipaddr peeraddr tunlink
  50
  51         [ -z "$peeraddr" ] && {
  52                 proto_notify_error "$cfg" "MISSING_ADDRESS"
  53                 proto_block_restart "$cfg"
  54                 exit
  55         }
  56
  57         ( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" )
  58
  59         [ -z "$ipaddr" ] && {
  60                 local wanif="$tunlink"
  61                 if [ -z $wanif ] && ! network_find_wan wanif; then
  62                         proto_notify_error "$cfg" "NO_WAN_LINK"
  63                         exit
  64                 fi
  65
  66                 if ! network_get_ipaddr ipaddr "$wanif"; then
  67                         proto_notify_error "$cfg" "NO_WAN_LINK"
  68                         exit
  69                 fi
  70         }
  71
  72         [ -z "$df" ] && df="1"
  73
  74         gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre-$cfg"
  75 }
  76
  77 proto_gre_setup() {
  78         local cfg="$1"
  79
  80         gre_setup $cfg "greip"
  81 }
  82
  83 proto_gretap_setup() {
  84         local cfg="$1"
  85
  86         local network
  87         json_get_vars network
  88
  89         gre_setup $cfg "gretapip"
  90
  91         json_init
  92         json_add_string name "gre-$cfg"
  93         json_add_boolean link-ext 0
  94         json_close_object
  95
  96         for i in $network; do
  97                 ubus call network.interface."$i" add_device "$(json_dump)"
  98         done
  99 }
 100
 101 grev6_setup() {
 102         local cfg="$1"
 103         local mode="$2"
 104
 105         local ip6addr peer6addr weakif
 106         json_get_vars ip6addr peer6addr tunlink weakif
 107
 108         [ -z "$peer6addr" ] && {
 109                 proto_notify_error "$cfg" "MISSING_ADDRESS"
 110                 proto_block_restart "$cfg"
 111                 exit
 112         }
 113
 114         ( proto_add_host_dependency "$cfg" "$peer6addr" "$tunlink" )
 115
 116         [ -z "$ip6addr" ] && {
 117                 local wanif="$tunlink"
 118                 if [ -z $wanif ] && ! network_find_wan6 wanif; then
 119                         proto_notify_error "$cfg" "NO_WAN_LINK"
 120                         exit
 121                 fi
 122
 123                 if ! network_get_ipaddr6 ip6addr "$wanif"; then
 124                         [ -z "$weakif" ] && weakif="lan"
 125                         if ! network_get_ipaddr6 ip6addr "$weakif"; then
 126                                 proto_notify_error "$cfg" "NO_WAN_LINK"
 127                                 exit
 128                         fi
 129                 fi
 130         }
 131
 132         gre_generic_setup $cfg $mode $ip6addr $peer6addr "grev6-$cfg"
 133 }
 134
 135 proto_grev6_setup() {
 136         local cfg="$1"
 137
 138         grev6_setup $cfg "greip6"
 139 }
 140
 141 proto_grev6tap_setup() {
 142         local cfg="$1"
 143
 144         local network
 145         json_get_vars network
 146
 147         grev6_setup $cfg "gretapip6"
 148
 149         json_init
 150         json_add_string name "grev6-$cfg"
 151         json_add_boolean link-ext 0
 152         json_close_object
 153
 154         for i in $network; do
 155                 ubus call network.interface."$i" add_device "$(json_dump)"
 156         done
 157 }
 158
 159 gretap_generic_teardown() {
 160         local network
 161         json_get_vars network
 162
 163         json_init
 164         json_add_string name "$1"
 165         json_add_boolean link-ext 0
 166         json_close_object
 167
 168         for i in $network; do
 169                 ubus call network.interface."$i" remove_device "$(json_dump)"
 170         done
 171 }
 172
 173 proto_gre_teardown() {
 174         local cfg="$1"
 175 }
 176
 177 proto_gretap_teardown() {
 178         local cfg="$1"
 179
 180         gretap_generic_teardown "gre-$cfg"
 181 }
 182
 183 proto_grev6_teardown() {
 184         local cfg="$1"
 185 }
 186
 187 proto_grev6tap_teardown() {
 188         local cfg="$1"
 189
 190         gretap_generic_teardown "grev6-$cfg"
 191 }
 192
 193 gre_generic_init_config() {
 194         no_device=1
 195         available=1
 196
 197         proto_config_add_int "mtu"
 198         proto_config_add_int "ttl"
 199         proto_config_add_string "tos"
 200         proto_config_add_string "tunlink"
 201         proto_config_add_string "zone"
 202         proto_config_add_int "ikey"
 203         proto_config_add_int "okey"
 204         proto_config_add_boolean "icsum"
 205         proto_config_add_boolean "ocsum"
 206         proto_config_add_boolean "iseqno"
 207         proto_config_add_boolean "oseqno"
 208         proto_config_add_boolean "multicast"
 209 }
 210
 211 proto_gre_init_config() {
 212         gre_generic_init_config
 213         proto_config_add_string "ipaddr"
 214         proto_config_add_string "peeraddr"
 215         proto_config_add_boolean "df"
 216 }
 217
 218 proto_gretap_init_config() {
 219         proto_gre_init_config
 220         proto_config_add_string "network"
 221 }
 222
 223 proto_grev6_init_config() {
 224         gre_generic_init_config
 225         proto_config_add_string "ip6addr"
 226         proto_config_add_string "peer6addr"
 227         proto_config_add_string "weakif"
 228 }
 229
 230 proto_grev6tap_init_config() {
 231         proto_grev6_init_config
 232         proto_config_add_string "network"
 233 }
 234
 235 [ -n "$INCLUDE_ONLY" ] || {
 236         [ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gre
 237         [ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gretap
 238         [ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6
 239         [ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6tap
 240 }