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