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="$2"
  47         local remoteip
  48
  49         local ipaddr peeraddr
  50         json_get_vars df ipaddr peeraddr tunlink
  51
  52         [ -z "$peeraddr" ] && {
  53                 proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
  54                 proto_block_restart "$cfg"
  55                 exit
  56         }
  57
  58         remoteip=$(resolveip -t 10 -4 "$peeraddr")
  59
  60         if [ -z "$remoteip" ]; then
  61                 proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
  62                 exit
  63         fi
  64
  65         for ip in $remoteip; do
  66                 peeraddr=$ip
  67                 break
  68         done
  69
  70         ( proto_add_host_dependency "$cfg" "$peeraddr" "$tunlink" )
  71
  72         [ -z "$ipaddr" ] && {
  73                 local wanif="$tunlink"
  74                 if [ -z $wanif ] && ! network_find_wan wanif; then
  75                         proto_notify_error "$cfg" "NO_WAN_LINK"
  76                         exit
  77                 fi
  78
  79                 if ! network_get_ipaddr ipaddr "$wanif"; then
  80                         proto_notify_error "$cfg" "NO_WAN_LINK"
  81                         exit
  82                 fi
  83         }
  84
  85         [ -z "$df" ] && df="1"
  86
  87         gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre-$cfg"
  88 }
  89
  90 proto_gre_setup() {
  91         local cfg="$1"
  92
  93         gre_setup $cfg "greip"
  94 }
  95
  96 proto_gretap_setup() {
  97         local cfg="$1"
  98
  99         local network
 100         json_get_vars network
 101
 102         gre_setup $cfg "gretapip"
 103
 104         json_init
 105         json_add_string name "gre-$cfg"
 106         json_add_boolean link-ext 0
 107         json_close_object
 108
 109         for i in $network; do
 110                 ubus call network.interface."$i" add_device "$(json_dump)"
 111         done
 112 }
 113
 114 grev6_setup() {
 115         local cfg="$1"
 116         local mode="$2"
 117         local remoteip6
 118
 119         local ip6addr peer6addr weakif
 120         json_get_vars ip6addr peer6addr tunlink weakif
 121
 122         [ -z "$peer6addr" ] && {
 123                 proto_notify_error "$cfg" "MISSING_PEER_ADDRESS"
 124                 proto_block_restart "$cfg"
 125                 exit
 126         }
 127
 128         remoteip6=$(resolveip -t 10 -6 "$peer6addr")
 129
 130         if [ -z "$remoteip6" ]; then
 131                 proto_notify_error "$cfg" "PEER_RESOLVE_FAIL"
 132                 exit
 133         fi
 134
 135         for ip6 in $remoteip6; do
 136                 peer6addr=$ip6
 137                 break
 138         done
 139
 140         ( proto_add_host_dependency "$cfg" "$peer6addr" "$tunlink" )
 141
 142         [ -z "$ip6addr" ] && {
 143                 local wanif="$tunlink"
 144                 if [ -z $wanif ] && ! network_find_wan6 wanif; then
 145                         proto_notify_error "$cfg" "NO_WAN_LINK"
 146                         exit
 147                 fi
 148
 149                 if ! network_get_ipaddr6 ip6addr "$wanif"; then
 150                         [ -z "$weakif" ] && weakif="lan"
 151                         if ! network_get_ipaddr6 ip6addr "$weakif"; then
 152                                 proto_notify_error "$cfg" "NO_WAN_LINK"
 153                                 exit
 154                         fi
 155                 fi
 156         }
 157
 158         gre_generic_setup $cfg $mode $ip6addr $peer6addr "grev6-$cfg"
 159 }
 160
 161 proto_grev6_setup() {
 162         local cfg="$1"
 163
 164         grev6_setup $cfg "greip6"
 165 }
 166
 167 proto_grev6tap_setup() {
 168         local cfg="$1"
 169
 170         local network
 171         json_get_vars network
 172
 173         grev6_setup $cfg "gretapip6"
 174
 175         json_init
 176         json_add_string name "grev6-$cfg"
 177         json_add_boolean link-ext 0
 178         json_close_object
 179
 180         for i in $network; do
 181                 ubus call network.interface."$i" add_device "$(json_dump)"
 182         done
 183 }
 184
 185 gretap_generic_teardown() {
 186         local network
 187         json_get_vars network
 188
 189         json_init
 190         json_add_string name "$1"
 191         json_add_boolean link-ext 0
 192         json_close_object
 193
 194         for i in $network; do
 195                 ubus call network.interface."$i" remove_device "$(json_dump)"
 196         done
 197 }
 198
 199 proto_gre_teardown() {
 200         local cfg="$1"
 201 }
 202
 203 proto_gretap_teardown() {
 204         local cfg="$1"
 205
 206         gretap_generic_teardown "gre-$cfg"
 207 }
 208
 209 proto_grev6_teardown() {
 210         local cfg="$1"
 211 }
 212
 213 proto_grev6tap_teardown() {
 214         local cfg="$1"
 215
 216         gretap_generic_teardown "grev6-$cfg"
 217 }
 218
 219 gre_generic_init_config() {
 220         no_device=1
 221         available=1
 222
 223         proto_config_add_int "mtu"
 224         proto_config_add_int "ttl"
 225         proto_config_add_string "tos"
 226         proto_config_add_string "tunlink"
 227         proto_config_add_string "zone"
 228         proto_config_add_int "ikey"
 229         proto_config_add_int "okey"
 230         proto_config_add_boolean "icsum"
 231         proto_config_add_boolean "ocsum"
 232         proto_config_add_boolean "iseqno"
 233         proto_config_add_boolean "oseqno"
 234         proto_config_add_boolean "multicast"
 235 }
 236
 237 proto_gre_init_config() {
 238         gre_generic_init_config
 239         proto_config_add_string "ipaddr"
 240         proto_config_add_string "peeraddr"
 241         proto_config_add_boolean "df"
 242 }
 243
 244 proto_gretap_init_config() {
 245         proto_gre_init_config
 246         proto_config_add_string "network"
 247 }
 248
 249 proto_grev6_init_config() {
 250         gre_generic_init_config
 251         proto_config_add_string "ip6addr"
 252         proto_config_add_string "peer6addr"
 253         proto_config_add_string "weakif"
 254 }
 255
 256 proto_grev6tap_init_config() {
 257         proto_grev6_init_config
 258         proto_config_add_string "network"
 259 }
 260
 261 [ -n "$INCLUDE_ONLY" ] || {
 262         [ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gre
 263         [ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gretap
 264         [ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6
 265         [ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6tap
 266 }