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