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                 fi
  85         done
  86
  87         for entry in $RA_ROUTES; do
  88                 local duplicate=$NOSOURCEFILTER
  89                 local addr="${entry%%/*}"
  90                 entry="${entry#*/}"
  91                 local mask="${entry%%,*}"
  92                 entry="${entry#*,}"
  93                 local gw="${entry%%,*}"
  94                 entry="${entry#*,}"
  95                 local valid="${entry%%,*}"
  96                 entry="${entry#*,}"
  97                 local metric="${entry%%,*}"
  98
  99                 for xentry in $RA_ROUTES; do
 100                         local xprefix="${xentry%%,*}"
 101                         xentry="${xentry#*,}"
 102                         local xgw="${xentry%%,*}"
 103
 104                         [ -n "$gw" -a -z "$xgw" -a "$addr/$mask" = "$xprefix" ] && duplicate=1
 105                 done
 106
 107                 if [ -z "$gw" -o "$duplicate" = 1 ]; then
 108                         proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid"
 109                 else
 110                         for prefix in $PREFIXES $ADDRESSES; do
 111                                 local paddr="${prefix%%,*}"
 112                                 proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid" "$paddr"
 113                         done
 114                 fi
 115         done
 116
 117         proto_add_data
 118         [ -n "$CER" ] && json_add_string cer "$CER"
 119         [ -n "$PASSTHRU" ] && json_add_string passthru "$PASSTHRU"
 120         [ -n "$ZONE" ] && json_add_string zone "$ZONE"
 121         proto_close_data
 122
 123         proto_send_update "$INTERFACE"
 124
 125         MAPTYPE=""
 126         MAPRULE=""
 127
 128         if [ -n "$MAPE" -a -f /lib/netifd/proto/map.sh ]; then
 129                 MAPTYPE="map-e"
 130                 MAPRULE="$MAPE"
 131         elif [ -n "$MAPT" -a -f /lib/netifd/proto/map.sh -a -f /proc/net/nat46/control ]; then
 132                 MAPTYPE="map-t"
 133                 MAPRULE="$MAPT"
 134         elif [ -n "$LW4O6" -a -f /lib/netifd/proto/map.sh ]; then
 135                 MAPTYPE="lw4o6"
 136                 MAPRULE="$LW4O6"
 137         fi
 138
 139         [ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)
 140
 141         if [ "$IFACE_MAP" != 0 -a -n "$MAPTYPE" -a -n "$MAPRULE" ]; then
 142                 [ -z "$IFACE_MAP" -o "$IFACE_MAP" = 1 ] && IFACE_MAP=${INTERFACE}_4
 143                 json_init
 144                 json_add_string name "$IFACE_MAP"
 145                 json_add_string ifname "@$INTERFACE"
 146                 json_add_string proto map
 147                 json_add_string type "$MAPTYPE"
 148                 json_add_string _prefsig "$prefsig"
 149                 [ "$MAPTYPE" = lw4o6 ] && json_add_string _addrsig "$addrsig"
 150                 json_add_string rule "$MAPRULE"
 151                 json_add_string tunlink "$INTERFACE"
 152                 [ -n "$ZONE_MAP" ] || ZONE_MAP=$ZONE
 153                 [ -n "$ZONE_MAP" ] && json_add_string zone "$ZONE_MAP"
 154                 [ -n "$IFACE_MAP_DELEGATE" ] && json_add_boolean delegate "$IFACE_MAP_DELEGATE"
 155                 json_close_object
 156                 ubus call network add_dynamic "$(json_dump)"
 157         elif [ -n "$AFTR" -a "$IFACE_DSLITE" != 0 -a -f /lib/netifd/proto/dslite.sh ]; then
 158                 [ -z "$IFACE_DSLITE" -o "$IFACE_DSLITE" = 1 ] && IFACE_DSLITE=${INTERFACE}_4
 159                 json_init
 160                 json_add_string name "$IFACE_DSLITE"
 161                 json_add_string ifname "@$INTERFACE"
 162                 json_add_string proto "dslite"
 163                 json_add_string peeraddr "$AFTR"
 164                 json_add_string tunlink "$INTERFACE"
 165                 [ -n "$ZONE_DSLITE" ] || ZONE_DSLITE=$ZONE
 166                 [ -n "$ZONE_DSLITE" ] && json_add_string zone "$ZONE_DSLITE"
 167                 [ -n "$IFACE_DSLITE_DELEGATE" ] && json_add_boolean delegate "$IFACE_DSLITE_DELEGATE"
 168                 json_close_object
 169                 ubus call network add_dynamic "$(json_dump)"
 170         elif [ "$IFACE_464XLAT" != 0 -a -f /lib/netifd/proto/464xlat.sh ]; then
 171                 [ -z "$IFACE_464XLAT" -o "$IFACE_464XLAT" = 1 ] && IFACE_464XLAT=${INTERFACE}_4
 172                 json_init
 173                 json_add_string name "$IFACE_464XLAT"
 174                 json_add_string ifname "@$INTERFACE"
 175                 json_add_string proto "464xlat"
 176                 json_add_string tunlink "$INTERFACE"
 177                 json_add_string _addrsig "$addrsig"
 178                 [ -n "$ZONE_464XLAT" ] || ZONE_464XLAT=$ZONE
 179                 [ -n "$ZONE_464XLAT" ] && json_add_string zone "$ZONE_464XLAT"
 180                 [ -n "$IFACE_464XLAT_DELEGATE" ] && json_add_boolean delegate "$IFACE_464XLAT_DELEGATE"
 181                 json_close_object
 182                 ubus call network add_dynamic "$(json_dump)"
 183         fi
 184
 185         # Apply IPv6 / ND configuration
 186         HOPLIMIT=$(cat /proc/sys/net/ipv6/conf/$device/hop_limit)
 187         [ -n "$RA_HOPLIMIT" -a -n "$HOPLIMIT" ] && [ "$RA_HOPLIMIT" -gt "$HOPLIMIT" ] && echo "$RA_HOPLIMIT" > /proc/sys/net/ipv6/conf/$device/hop_limit
 188         [ -n "$RA_MTU" ] && [ "$RA_MTU" -ge 1280 ] && echo "$RA_MTU" > /proc/sys/net/ipv6/conf/$device/mtu 2>/dev/null
 189         [ -n "$RA_REACHABLE" ] && [ "$RA_REACHABLE" -gt 0 ] && echo "$RA_REACHABLE" > /proc/sys/net/ipv6/neigh/$device/base_reachable_time_ms
 190         [ -n "$RA_RETRANSMIT" ] && [ "$RA_RETRANSMIT" -gt 0 ] && echo "$RA_RETRANSMIT" > /proc/sys/net/ipv6/neigh/$device/retrans_time_ms
 191
 192         # TODO: $SNTP_IP $SIP_IP $SNTP_FQDN $SIP_DOMAIN
 193 }
 194
 195 teardown_interface() {
 196         proto_init_update "*" 0
 197         proto_send_update "$INTERFACE"
 198 }
 199
 200 case "$2" in
 201         bound)
 202                 teardown_interface "$1"
 203                 setup_interface "$1"
 204         ;;
 205         informed|updated|rebound)
 206                 setup_interface "$1"
 207         ;;
 208         ra-updated)
 209                 [ -n "$ADDRESSES$RA_ADDRESSES$PREFIXES$USERPREFIX" ] && setup_interface "$1"
 210         ;;
 211         started|stopped|unbound)
 212                 teardown_interface "$1"
 213         ;;
 214 esac
 215
 216 # user rules
 217 [ -f /etc/odhcp6c.user ] && . /etc/odhcp6c.user
 218
 219 exit 0