8691d75917
Some ISP seem to only do stateful DHCPv6 and not sending RAs. This is technically broken because plain DHCPv6 doesn't carry routes. We work around here by faking a default route to the DHCPv6 server if we do not receive a useful RA from the ISP. This workaround can be turned off with: option fakeroutes 0 Signed-off-by: Steven Barth <steven@midlink.org> SVN-Revision: 42803
98 lines
3.0 KiB
Bash
Executable File
98 lines
3.0 KiB
Bash
Executable File
#!/bin/sh
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. /lib/functions.sh
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. ../netifd-proto.sh
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init_proto "$@"
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proto_dhcpv6_init_config() {
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renew_handler=1
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proto_config_add_string 'reqaddress:or("try","force","none")'
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proto_config_add_string 'reqprefix:or("auto","no",range(0, 64))'
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proto_config_add_string clientid
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proto_config_add_string 'reqopts:list(uinteger)'
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proto_config_add_string 'noslaaconly:bool'
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proto_config_add_string 'forceprefix:bool'
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proto_config_add_string 'norelease:bool'
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proto_config_add_string 'ip6prefix:ip6addr'
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proto_config_add_string iface_dslite
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proto_config_add_string zone_dslite
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proto_config_add_string iface_map
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proto_config_add_string zone_map
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proto_config_add_string zone
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proto_config_add_string 'ifaceid:ip6addr'
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proto_config_add_string 'sourcerouting:bool'
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proto_config_add_string "userclass"
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proto_config_add_string "vendorclass"
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proto_config_add_boolean delegate
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proto_config_add_int "soltimeout"
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proto_config_add_boolean fakeroutes
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}
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proto_dhcpv6_setup() {
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local config="$1"
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local iface="$2"
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local reqaddress reqprefix clientid reqopts noslaaconly forceprefix norelease ip6prefix iface_dslite iface_map ifaceid sourcerouting userclass vendorclass delegate zone_dslite zone_map zone soltimeout fakeroutes
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json_get_vars reqaddress reqprefix clientid reqopts noslaaconly forceprefix norelease ip6prefix iface_dslite iface_map ifaceid sourcerouting userclass vendorclass delegate zone_dslite zone_map zone soltimeout fakeroutes
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# Configure
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local opts=""
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[ -n "$reqaddress" ] && append opts "-N$reqaddress"
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[ -z "$reqprefix" -o "$reqprefix" = "auto" ] && reqprefix=0
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[ "$reqprefix" != "no" ] && append opts "-P$reqprefix"
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[ -n "$clientid" ] && append opts "-c$clientid"
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[ "$noslaaconly" = "1" ] && append opts "-S"
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[ "$forceprefix" = "1" ] && append opts "-F"
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[ "$norelease" = "1" ] && append opts "-k"
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[ -n "$ifaceid" ] && append opts "-i$ifaceid"
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[ -n "$vendorclass" ] && append opts "-V$vendorclass"
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[ -n "$userclass" ] && append opts "-u$userclass"
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for opt in $reqopts; do
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append opts "-r$opt"
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done
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append opts "-t${soltimeout:-120}"
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[ -n "$ip6prefix" ] && proto_export "USERPREFIX=$ip6prefix"
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[ -n "$iface_dslite" ] && proto_export "IFACE_DSLITE=$iface_dslite"
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[ -n "$iface_map" ] && proto_export "IFACE_MAP=$iface_map"
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[ "$sourcerouting" != "0" ] && proto_export "SOURCE_ROUTING=1"
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[ "$delegate" = "0" ] && proto_export "IFACE_DSLITE_DELEGATE=0"
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[ "$delegate" = "0" ] && proto_export "IFACE_MAP_DELEGATE=0"
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[ -n "$zone_dslite" ] && proto_export "ZONE_DSLITE=$zone_dslite"
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[ -n "$zone_map" ] && proto_export "ZONE_MAP=$zone_map"
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[ -n "$zone" ] && proto_export "ZONE=$zone"
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[ "$fakeroutes" != "0" ] && proto_export "FAKE_ROUTES=1"
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proto_export "INTERFACE=$config"
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proto_run_command "$config" odhcp6c \
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-s /lib/netifd/dhcpv6.script \
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$opts $iface
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}
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proto_dhcpv6_renew() {
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local interface="$1"
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# SIGUSR1 forces odhcp6c to renew its lease
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local sigusr1="$(kill -l SIGUSR1)"
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[ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
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}
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proto_dhcpv6_teardown() {
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local interface="$1"
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proto_kill_command "$interface"
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}
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add_protocol dhcpv6
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