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="$5"
  16         local mtu ttl zone ikey okey icsum ocsum iseqno oseqno
  17         json_get_vars mtu ttl zone ikey okey icsum ocsum iseqno oseqno
  18
  19         [ -z "$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         json_add_string local "$local"
  29         json_add_string remote "$remote"
  30         [ -n "$tunlink" ] && json_add_string link "$tunlink"
  31         json_add_string info "${ikey:-0},${okey:-0},${icsum:-0},${ocsum:-0},${iseqno:-0},${oseqno:-0}"
  32         proto_close_tunnel
  33
  34         proto_add_data
  35         [ -n "$zone" ] && json_add_string zone "$zone"
  36         proto_close_data
  37
  38         proto_send_update "$cfg"
  39 }
  40
  41 gre_setup() {
  42         local cfg="$1"
  43         local mode="$2"
  44
  45         local ipaddr peeraddr
  46         json_get_vars df ipaddr peeraddr tunlink
  47
  48         [ -z "$peeraddr" ] && {
  49                 proto_notify_error "$cfg" "MISSING_ADDRESS"
  50                 proto_block_restart "$cfg"
  51                 exit
  52         }
  53
  54         ( proto_add_host_dependency "$cfg" "0.0.0.0" "$tunlink" )
  55
  56         [ -z "$ipaddr" ] && {
  57                 local wanif="$tunlink"
  58                 if [ -z $wanif ] && ! network_find_wan wanif; then
  59                         proto_notify_error "$cfg" "NO_WAN_LINK"
  60                         exit
  61                 fi
  62
  63                 if ! network_get_ipaddr ipaddr "$wanif"; then
  64                         proto_notify_error "$cfg" "NO_WAN_LINK"
  65                         exit
  66                 fi
  67         }
  68
  69         [ -z "$df" ] && df="1"
  70
  71         gre_generic_setup $cfg $mode $ipaddr $peeraddr "gre-$cfg"
  72 }
  73
  74 proto_gre_setup() {
  75         local cfg="$1"
  76
  77         gre_setup $cfg "greip"
  78 }
  79
  80 proto_gretap_setup() {
  81         local cfg="$1"
  82
  83         local network
  84         json_get_vars network
  85
  86         gre_setup $cfg "gretapip"
  87
  88         json_init
  89         json_add_string name "gre-$cfg"
  90         json_add_boolean link-ext 0
  91         json_close_object
  92
  93         for i in $network; do
  94                 ubus call network.interface."$i" add_device "$(json_dump)"
  95         done
  96 }
  97
  98 grev6_setup() {
  99         local cfg="$1"
 100         local mode="$2"
 101
 102         local ip6addr peer6addr weakif
 103         json_get_vars ip6addr peer6addr tunlink weakif
 104
 105         [ -z "$peer6addr" ] && {
 106                 proto_notify_error "$cfg" "MISSING_ADDRESS"
 107                 proto_block_restart "$cfg"
 108                 exit
 109         }
 110
 111         ( proto_add_host_dependency "$cfg" "::" "$tunlink" )
 112
 113         [ -z "$ip6addr" ] && {
 114                 local wanif="$tunlink"
 115                 if [ -z $wanif ] && ! network_find_wan6 wanif; then
 116                         proto_notify_error "$cfg" "NO_WAN_LINK"
 117                         exit
 118                 fi
 119
 120                 if ! network_get_ipaddr6 ip6addr "$wanif"; then
 121                         [ -z "$weakif" ] && weakif="lan"
 122                         if ! network_get_ipaddr6 ip6addr "$weakif"; then
 123                                 proto_notify_error "$cfg" "NO_WAN_LINK"
 124                                 exit
 125                         fi
 126                 fi
 127         }
 128
 129         gre_generic_setup $cfg $mode $ip6addr $peer6addr "grev6-$cfg"
 130 }
 131
 132 proto_grev6_setup() {
 133         local cfg="$1"
 134
 135         grev6_setup $cfg "greip6"
 136 }
 137
 138 proto_grev6tap_setup() {
 139         local cfg="$1"
 140
 141         local network
 142         json_get_vars network
 143
 144         grev6_setup $cfg "gretapip6"
 145
 146         json_init
 147         json_add_string name "grev6-$cfg"
 148         json_add_boolean link-ext 0
 149         json_close_object
 150
 151         for i in $network; do
 152                 ubus call network.interface."$i" add_device "$(json_dump)"
 153         done
 154 }
 155
 156 gretap_generic_teardown() {
 157         local network
 158         json_get_vars network
 159
 160         json_init
 161         json_add_string name "$1"
 162         json_add_boolean link-ext 0
 163         json_close_object
 164
 165         for i in $network; do
 166                 ubus call network.interface."$i" remove_device "$(json_dump)"
 167         done
 168 }
 169
 170 proto_gre_teardown() {
 171         local cfg="$1"
 172 }
 173
 174 proto_gretap_teardown() {
 175         local cfg="$1"
 176
 177         gretap_generic_teardown "gre-$cfg"
 178 }
 179
 180 proto_grev6_teardown() {
 181         local cfg="$1"
 182 }
 183
 184 proto_grev6tap_teardown() {
 185         local cfg="$1"
 186
 187         gretap_generic_teardown "grev6-$cfg"
 188 }
 189
 190 gre_generic_init_config() {
 191         no_device=1
 192         available=1
 193
 194         proto_config_add_int "mtu"
 195         proto_config_add_int "ttl"
 196         proto_config_add_string "tunlink"
 197         proto_config_add_string "zone"
 198         proto_config_add_int "ikey"
 199         proto_config_add_int "okey"
 200         proto_config_add_boolean "icsum"
 201         proto_config_add_boolean "ocsum"
 202         proto_config_add_boolean "iseqno"
 203         proto_config_add_boolean "oseqno"
 204 }
 205
 206 proto_gre_init_config() {
 207         gre_generic_init_config
 208         proto_config_add_string "ipaddr"
 209         proto_config_add_string "peeraddr"
 210         proto_config_add_boolean "df"
 211 }
 212
 213 proto_gretap_init_config() {
 214         proto_gre_init_config
 215         proto_config_add_string "network"
 216 }
 217
 218 proto_grev6_init_config() {
 219         gre_generic_init_config
 220         proto_config_add_string "ip6addr"
 221         proto_config_add_string "peer6addr"
 222         proto_config_add_string "weakif"
 223 }
 224
 225 proto_grev6tap_init_config() {
 226         proto_grev6_init_config
 227         proto_config_add_string "network"
 228 }
 229
 230 [ -n "$INCLUDE_ONLY" ] || {
 231         [ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gre
 232         [ -f /lib/modules/$(uname -r)/gre.ko ] && add_protocol gretap
 233         [ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6
 234         [ -f /lib/modules/$(uname -r)/ip6_gre.ko ] && add_protocol grev6tap
 235 }