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