package/network/ipv6/odhcp6c/files/dhcpv6.script

   1 #!/bin/sh
   2 [ -z "$2" ] && echo "Error: should be run by odhcpc6c" && exit 1
   3 . /lib/functions.sh
   4 . /lib/netifd/netifd-proto.sh
   5
   6 setup_interface () {
   7         local device="$1"
   8         local prefsig=""
   9         local addrsig=""
  10
  11         # Apply IPv6 / ND configuration
  12         HOPLIMIT=$(cat /proc/sys/net/ipv6/conf/$device/hop_limit)
  13         [ -n "$RA_HOPLIMIT" -a -n "$HOPLIMIT" ] && [ "$RA_HOPLIMIT" -gt "$HOPLIMIT" ] && echo "$RA_HOPLIMIT" > /proc/sys/net/ipv6/conf/$device/hop_limit
  14         [ -n "$RA_MTU" ] && [ "$RA_MTU" -ge 1280 ] && echo "$RA_MTU" > /proc/sys/net/ipv6/conf/$device/mtu 2>/dev/null
  15         [ -n "$RA_REACHABLE" ] && [ "$RA_REACHABLE" -gt 0 ] && echo "$RA_REACHABLE" > /proc/sys/net/ipv6/neigh/$device/base_reachable_time_ms
  16         [ -n "$RA_RETRANSMIT" ] && [ "$RA_RETRANSMIT" -gt 0 ] && echo "$RA_RETRANSMIT" > /proc/sys/net/ipv6/neigh/$device/retrans_time_ms
  17
  18         proto_init_update "*" 1
  19
  20         # Merge RA-DNS
  21         for radns in $RA_DNS; do
  22                 local duplicate=0
  23                 for dns in $RDNSS; do
  24                         [ "$radns" = "$dns" ] && duplicate=1
  25                 done
  26                 [ "$duplicate" = 0 ] && RDNSS="$RDNSS $radns"
  27         done
  28
  29         for dns in $RDNSS; do
  30                 proto_add_dns_server "$dns"
  31         done
  32
  33         for radomain in $RA_DOMAINS; do
  34                 local duplicate=0
  35                 for domain in $DOMAINS; do
  36                         [ "$radomain" = "$domain" ] && duplicate=1
  37                 done
  38                 [ "$duplicate" = 0 ] && DOMAINS="$DOMAINS $radomain"
  39         done
  40
  41         for domain in $DOMAINS; do
  42                 proto_add_dns_search "$domain"
  43         done
  44
  45         for prefix in $PREFIXES; do
  46                 proto_add_ipv6_prefix "$prefix"
  47                 prefsig="$prefsig ${prefix%%,*}"
  48                 local entry="${prefix#*/}"
  49                 entry="${entry#*,}"
  50                 entry="${entry#*,}"
  51                 local valid="${entry%%,*}"
  52
  53                 if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
  54                                 -z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
  55                         RA_ROUTES="::/0,$SERVER,$valid,4096"
  56                 fi
  57         done
  58
  59         for prefix in $USERPREFIX; do
  60                 proto_add_ipv6_prefix "$prefix"
  61         done
  62
  63         # Merge addresses
  64         for entry in $RA_ADDRESSES; do
  65                 local duplicate=0
  66                 local addr="${entry%%/*}"
  67                 for dentry in $ADDRESSES; do
  68                         local daddr="${dentry%%/*}"
  69                         [ "$addr" = "$daddr" ] && duplicate=1
  70                 done
  71                 [ "$duplicate" = "0" ] && ADDRESSES="$ADDRESSES $entry"
  72         done
  73
  74         for entry in $ADDRESSES; do
  75                 local addr="${entry%%/*}"
  76                 entry="${entry#*/}"
  77                 local mask="${entry%%,*}"
  78                 entry="${entry#*,}"
  79                 local preferred="${entry%%,*}"
  80                 entry="${entry#*,}"
  81                 local valid="${entry%%,*}"
  82
  83                 proto_add_ipv6_address "$addr" "$mask" "$preferred" "$valid" 1
  84                 addrsig="$addrsig $addr/$mask"
  85
  86                 if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
  87                                 -z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
  88                         RA_ROUTES="::/0,$SERVER,$valid,4096"
  89                 fi
  90
  91                 # RFC 7278
  92                 if [ "$mask" -eq 64 -a -z "$PREFIXES" -a -n "$EXTENDPREFIX" ]; then
  93                         proto_add_ipv6_prefix "$addr/$mask,$preferred,$valid"
  94
  95                         local raroutes=""
  96                         for route in $RA_ROUTES; do
  97                                 local prefix="${route%%/*}"
  98                                 local entry="${route#*/}"
  99                                 local pmask="${entry%%,*}"
 100                                 entry="${entry#*,}"
 101                                 local gw="${entry%%,*}"
 102
 103                                 [ -z "$gw" -a "$mask" = "$pmask" ] && {
 104                                         case "$addr" in
 105                                                 "${prefix%*::}"*) continue;;
 106                                         esac
 107                                 }
 108                                 raroutes="$raroutes $route"
 109                         done
 110                         RA_ROUTES="$raroutes"
 111                 fi
 112         done
 113
 114         for entry in $RA_ROUTES; do
 115                 local duplicate=$NOSOURCEFILTER
 116                 local addr="${entry%%/*}"
 117                 entry="${entry#*/}"
 118                 local mask="${entry%%,*}"
 119                 entry="${entry#*,}"
 120                 local gw="${entry%%,*}"
 121                 entry="${entry#*,}"
 122                 local valid="${entry%%,*}"
 123                 entry="${entry#*,}"
 124                 local metric="${entry%%,*}"
 125
 126                 for xentry in $RA_ROUTES; do
 127                         local xprefix="${xentry%%,*}"
 128                         xentry="${xentry#*,}"
 129                         local xgw="${xentry%%,*}"
 130
 131                         [ -n "$gw" -a -z "$xgw" -a "$addr/$mask" = "$xprefix" ] && duplicate=1
 132                 done
 133
 134                 if [ -z "$gw" -o "$duplicate" = 1 ]; then
 135                         proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid"
 136                 else
 137                         for prefix in $PREFIXES $ADDRESSES; do
 138                                 local paddr="${prefix%%,*}"
 139                                 proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid" "$paddr"
 140                         done
 141                 fi
 142         done
 143
 144         proto_add_data
 145         [ -n "$CER" ] && json_add_string cer "$CER"
 146         [ -n "$PASSTHRU" ] && json_add_string passthru "$PASSTHRU"
 147         [ -n "$ZONE" ] && json_add_string zone "$ZONE"
 148         proto_close_data
 149
 150         proto_send_update "$INTERFACE"
 151
 152         MAPTYPE=""
 153         MAPRULE=""
 154
 155         if [ -n "$MAPE" -a -f /lib/netifd/proto/map.sh ]; then
 156                 MAPTYPE="map-e"
 157                 MAPRULE="$MAPE"
 158         elif [ -n "$MAPT" -a -f /lib/netifd/proto/map.sh -a -f /proc/net/nat46/control ]; then
 159                 MAPTYPE="map-t"
 160                 MAPRULE="$MAPT"
 161         elif [ -n "$LW4O6" -a -f /lib/netifd/proto/map.sh ]; then
 162                 MAPTYPE="lw4o6"
 163                 MAPRULE="$LW4O6"
 164         fi
 165
 166         [ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)
 167
 168         if [ "$IFACE_MAP" != 0 -a -n "$MAPTYPE" -a -n "$MAPRULE" ]; then
 169                 [ -z "$IFACE_MAP" -o "$IFACE_MAP" = 1 ] && IFACE_MAP=${INTERFACE}_4
 170                 json_init
 171                 json_add_string name "$IFACE_MAP"
 172                 json_add_string ifname "@$INTERFACE"
 173                 json_add_string proto map
 174                 json_add_string type "$MAPTYPE"
 175                 json_add_string _prefsig "$prefsig"
 176                 [ "$MAPTYPE" = lw4o6 ] && json_add_string _addrsig "$addrsig"
 177                 json_add_string rule "$MAPRULE"
 178                 json_add_string tunlink "$INTERFACE"
 179                 [ -n "$ZONE_MAP" ] || ZONE_MAP=$ZONE
 180                 [ -n "$ZONE_MAP" ] && json_add_string zone "$ZONE_MAP"
 181                 [ -n "$ENCAPLIMIT_MAP" ] && json_add_string encaplimit "$ENCAPLIMIT_MAP"
 182                 [ -n "$IFACE_MAP_DELEGATE" ] && json_add_boolean delegate "$IFACE_MAP_DELEGATE"
 183                 json_close_object
 184                 ubus call network add_dynamic "$(json_dump)"
 185         elif [ -n "$AFTR" -a "$IFACE_DSLITE" != 0 -a -f /lib/netifd/proto/dslite.sh ]; then
 186                 [ -z "$IFACE_DSLITE" -o "$IFACE_DSLITE" = 1 ] && IFACE_DSLITE=${INTERFACE}_4
 187                 json_init
 188                 json_add_string name "$IFACE_DSLITE"
 189                 json_add_string ifname "@$INTERFACE"
 190                 json_add_string proto "dslite"
 191                 json_add_string peeraddr "$AFTR"
 192                 json_add_string tunlink "$INTERFACE"
 193                 [ -n "$ZONE_DSLITE" ] || ZONE_DSLITE=$ZONE
 194                 [ -n "$ZONE_DSLITE" ] && json_add_string zone "$ZONE_DSLITE"
 195                 [ -n "$ENCAPLIMIT_DSLITE" ] && json_add_string encaplimit "$ENCAPLIMIT_DSLITE"
 196                 [ -n "$IFACE_DSLITE_DELEGATE" ] && json_add_boolean delegate "$IFACE_DSLITE_DELEGATE"
 197                 json_close_object
 198                 ubus call network add_dynamic "$(json_dump)"
 199         elif [ "$IFACE_464XLAT" != 0 -a -f /lib/netifd/proto/464xlat.sh ]; then
 200                 [ -z "$IFACE_464XLAT" -o "$IFACE_464XLAT" = 1 ] && IFACE_464XLAT=${INTERFACE}_4
 201                 json_init
 202                 json_add_string name "$IFACE_464XLAT"
 203                 json_add_string ifname "@$INTERFACE"
 204                 json_add_string proto "464xlat"
 205                 json_add_string tunlink "$INTERFACE"
 206                 json_add_string _addrsig "$addrsig"
 207                 [ -n "$ZONE_464XLAT" ] || ZONE_464XLAT=$ZONE
 208                 [ -n "$ZONE_464XLAT" ] && json_add_string zone "$ZONE_464XLAT"
 209                 [ -n "$IFACE_464XLAT_DELEGATE" ] && json_add_boolean delegate "$IFACE_464XLAT_DELEGATE"
 210                 json_close_object
 211                 ubus call network add_dynamic "$(json_dump)"
 212         fi
 213
 214         # TODO: $SNTP_IP $SIP_IP $SNTP_FQDN $SIP_DOMAIN
 215 }
 216
 217 teardown_interface() {
 218         proto_init_update "*" 0
 219         proto_send_update "$INTERFACE"
 220 }
 221
 222 case "$2" in
 223         bound)
 224                 teardown_interface "$1"
 225                 setup_interface "$1"
 226         ;;
 227         informed|updated|rebound)
 228                 setup_interface "$1"
 229         ;;
 230         ra-updated)
 231                 [ -n "$ADDRESSES$RA_ADDRESSES$PREFIXES$USERPREFIX" ] && setup_interface "$1"
 232         ;;
 233         started|stopped|unbound)
 234                 teardown_interface "$1"
 235         ;;
 236 esac
 237
 238 # user rules
 239 [ -f /etc/odhcp6c.user ] && . /etc/odhcp6c.user "$@"
 240 for f in /etc/odhcp6c.user.d/*; do
 241   [ -f "$f" ] && (. "$f" "$@")
 242 done
 243
 244 exit 0