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         proto_init_update "*" 1
   9
  10         # Merge RA-DNS
  11         for radns in $RA_DNS; do
  12                 local duplicate=0
  13                 for dns in $RDNSS; do
  14                         [ "$radns" = "$dns" ] && duplicate=1
  15                 done
  16                 [ "$duplicate" = 0 ] && RDNSS="$RDNSS $radns"
  17         done
  18
  19         for dns in $RDNSS; do
  20                 proto_add_dns_server "$dns"
  21         done
  22
  23         for radomain in $RA_DOMAINS; do
  24                 local duplicate=0
  25                 for domain in $DOMAINS; do
  26                         [ "$radomain" = "$domain" ] && duplicate=1
  27                 done
  28                 [ "$duplicate" = 0 ] && DOMAINS="$DOMAINS $radomain"
  29         done
  30
  31         for domain in $DOMAINS; do
  32                 proto_add_dns_search "$domain"
  33         done
  34
  35         for prefix in $PREFIXES; do
  36                 proto_add_ipv6_prefix "$prefix"
  37                 local entry="${prefix#*/}"
  38                 entry="${entry#*,}"
  39                 entry="${entry#*,}"
  40                 local valid="${entry%%,*}"
  41
  42                 if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
  43                                 -z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
  44                         RA_ROUTES="::/0,$SERVER,$valid,4096"
  45                 fi
  46         done
  47
  48         [ -n "$USERPREFIX" ] && proto_add_ipv6_prefix "$USERPREFIX"
  49
  50         # Merge addresses
  51         for entry in $RA_ADDRESSES; do
  52                 local duplicate=0
  53                 local addr="${entry%%/*}"
  54                 for dentry in $ADDRESSES; do
  55                         local daddr="${dentry%%/*}"
  56                         [ "$addr" = "$daddr" ] && duplicate=1
  57                 done
  58                 [ "$duplicate" = "0" ] && ADDRESSES="$ADDRESSES $entry"
  59         done
  60
  61         for entry in $ADDRESSES; do
  62                 local addr="${entry%%/*}"
  63                 entry="${entry#*/}"
  64                 local mask="${entry%%,*}"
  65                 entry="${entry#*,}"
  66                 local preferred="${entry%%,*}"
  67                 entry="${entry#*,}"
  68                 local valid="${entry%%,*}"
  69
  70                 proto_add_ipv6_address "$addr" "$mask" "$preferred" "$valid" 1
  71
  72                 if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
  73                                 -z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
  74                         RA_ROUTES="::/0,$SERVER,$valid,4096"
  75                 fi
  76         done
  77
  78         for entry in $RA_ROUTES; do
  79                 local addr="${entry%%/*}"
  80                 entry="${entry#*/}"
  81                 local mask="${entry%%,*}"
  82                 entry="${entry#*,}"
  83                 local gw="${entry%%,*}"
  84                 entry="${entry#*,}"
  85                 local valid="${entry%%,*}"
  86                 entry="${entry#*,}"
  87                 local metric="${entry%%,*}"
  88
  89                 if [ -z "$gw" ]; then
  90                         proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid"
  91
  92                         # work around if there is a PIO matching a RIO
  93                         # Linux seems to prefer source-dest over dest-only even if metric is higher
  94                         proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid" "$addr/$mask"
  95                 else
  96                         for prefix in $PREFIXES $ADDRESSES; do
  97                                 local paddr="${prefix%%,*}"
  98                                 proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid" "$paddr"
  99                         done
 100                 fi
 101         done
 102
 103         proto_add_data
 104         [ -n "$CER" ] && json_add_string cer "$CER"
 105         [ -n "$PASSTHRU" ] && json_add_string passthru "$PASSTHRU"
 106         [ -n "$ZONE" ] && json_add_string zone "$ZONE"
 107         proto_close_data
 108
 109         proto_send_update "$INTERFACE"
 110
 111         MAPTYPE=""
 112         MAPRULE=""
 113
 114         if [ -n "$MAPE" -a -f /lib/netifd/proto/map.sh ]; then
 115                 MAPTYPE="map-e"
 116                 MAPRULE="$MAPE"
 117         elif [ -n "$MAPT" -a -f /lib/netifd/proto/map.sh -a -f /proc/net/nat46/control ]; then
 118                 MAPTYPE="map-t"
 119                 MAPRULE="$MAPT"
 120         elif [ -n "$LW4O6" -a -f /lib/netifd/proto/map.sh ]; then
 121                 MAPTYPE="lw4o6"
 122                 MAPRULE="$LW4O6"
 123         fi
 124
 125         [ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)
 126
 127         if [ "$IFACE_MAP" != 0 -a -n "$MAPTYPE" -a -n "$MAPRULE" ]; then
 128                 [ -z "$IFACE_MAP" -o "$IFACE_MAP" = 1 ] && IFACE_MAP=${INTERFACE}_4
 129                 json_init
 130                 json_add_string name "$IFACE_MAP"
 131                 json_add_string ifname "@$INTERFACE"
 132                 json_add_string proto map
 133                 json_add_string type "$MAPTYPE"
 134                 json_add_string rule "$MAPRULE"
 135                 json_add_string tunlink "$INTERFACE"
 136                 [ -n "$ZONE_MAP" ] || ZONE_MAP=$ZONE
 137                 [ -n "$ZONE_MAP" ] && json_add_string zone "$ZONE_MAP"
 138                 [ -n "$IFACE_MAP_DELEGATE" ] && json_add_boolean delegate "$IFACE_MAP_DELEGATE"
 139                 json_close_object
 140                 ubus call network add_dynamic "$(json_dump)"
 141         elif [ -n "$AFTR" -a "$IFACE_DSLITE" != 0 -a -f /lib/netifd/proto/dslite.sh ]; then
 142                 [ -z "$IFACE_DSLITE" -o "$IFACE_DSLITE" = 1 ] && IFACE_DSLITE=${INTERFACE}_4
 143                 json_init
 144                 json_add_string name "$IFACE_DSLITE"
 145                 json_add_string ifname "@$INTERFACE"
 146                 json_add_string proto "dslite"
 147                 json_add_string peeraddr "$AFTR"
 148                 json_add_string tunlink "$INTERFACE"
 149                 [ -n "$ZONE_DSLITE" ] || ZONE_DSLITE=$ZONE
 150                 [ -n "$ZONE_DSLITE" ] && json_add_string zone "$ZONE_DSLITE"
 151                 [ -n "$IFACE_DSLITE_DELEGATE" ] && json_add_boolean delegate "$IFACE_DSLITE_DELEGATE"
 152                 json_close_object
 153                 ubus call network add_dynamic "$(json_dump)"
 154         elif [ "$IFACE_464XLAT" != 0 -a -f /lib/netifd/proto/464xlat.sh ]; then
 155                 [ -z "$IFACE_464XLAT" -o "$IFACE_464XLAT" = 1 ] && IFACE_464XLAT=${INTERFACE}_4
 156                 json_init
 157                 json_add_string name "$IFACE_464XLAT"
 158                 json_add_string ifname "@$INTERFACE"
 159                 json_add_string proto "464xlat"
 160                 json_add_string tunlink "$INTERFACE"
 161                 [ -n "$ZONE_464XLAT" ] || ZONE_464XLAT=$ZONE
 162                 [ -n "$ZONE_464XLAT" ] && json_add_string zone "$ZONE_464XLAT"
 163                 [ -n "$IFACE_464XLAT_DELEGATE" ] && json_add_boolean delegate "$IFACE_464XLAT_DELEGATE"
 164                 json_close_object
 165                 ubus call network add_dynamic "$(json_dump)"
 166         fi
 167
 168         # Apply IPv6 / ND configuration
 169         HOPLIMIT=$(cat /proc/sys/net/ipv6/conf/$device/hop_limit)
 170         [ -n "$RA_HOPLIMIT" -a -n "$HOPLIMIT" ] && [ "$RA_HOPLIMIT" -gt "$HOPLIMIT" ] && echo "$RA_HOPLIMIT" > /proc/sys/net/ipv6/conf/$device/hop_limit
 171         [ -n "$RA_MTU" ] && [ "$RA_MTU" -gt 0 ] && echo "$RA_MTU" > /proc/sys/net/ipv6/conf/$device/mtu
 172         [ -n "$RA_REACHABLE" ] && [ "$RA_REACHABLE" -gt 0 ] && echo "$RA_REACHABLE" > /proc/sys/net/ipv6/neigh/$device/base_reachable_time_ms
 173         [ -n "$RA_RETRANSMIT" ] && [ "$RA_RETRANSMIT" -gt 0 ] && echo "$RA_RETRANSMIT" > /proc/sys/net/ipv6/neigh/$device/retrans_time_ms
 174
 175         # TODO: $SNTP_IP $SIP_IP $SNTP_FQDN $SIP_DOMAIN
 176 }
 177
 178 teardown_interface() {
 179         proto_init_update "*" 0
 180         proto_send_update "$INTERFACE"
 181 }
 182
 183 case "$2" in
 184         bound)
 185                 teardown_interface "$1"
 186                 setup_interface "$1"
 187         ;;
 188         informed|updated|rebound)
 189                 setup_interface "$1"
 190         ;;
 191         ra-updated)
 192                 [ -n "$ADDRESSES$RA_ADDRESSES$PREFIXES$USERPREFIX" ] && setup_interface "$1"
 193         ;;
 194         started|stopped|unbound)
 195                 teardown_interface "$1"
 196         ;;
 197 esac
 198
 199 # user rules
 200 [ -f /etc/odhcp6c.user ] && . /etc/odhcp6c.user
 201
 202 exit 0