openwrt / odhcp6c Goto Github PK

diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index 8be70af..2a4594c 100644
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -241,8 +241,8 @@ static void dhcpv6_send(enum dhcpv6_msg type, uint8_t trid[3], uint32_t ecs)
                pa[i].type = htons(DHCPV6_OPT_IA_ADDR);
                pa[i].len = htons(sizeof(pa[i]) - 4U);
                pa[i].addr = e[i].target;
-               pa[i].preferred = 0;
-               pa[i].valid = 0;
+               pa[i].preferred = e[i].preferred;
+               pa[i].valid = e[i].valid;
        }

        ia_na = pa;
@@ -534,6 +534,42 @@ static int dhcpv6_handle_advert(_unused enum dhcpv6_msg orig,
                                                d[1] == DHCPV6_NoPrefixAvail)
                                        cand.preference -= 2000;
                        }
+               } else if ((otype == DHCPV6_OPT_IA_NA)
+                               && olen > sizeof(struct dhcpv6_ia_hdr)) {
+                       struct dhcpv6_ia_hdr *ia_hdr = (void*)(&odata[-4]);
+                       uint32_t l_t1 = ntohl(ia_hdr->t1);
+                       uint32_t l_t2 = ntohl(ia_hdr->t2);
+
+                       // Test ID and T1-T2 validity
+                       if (ia_hdr->iaid != 1 || l_t2 < l_t1)
+                               continue;
+
+                       uint16_t stype, slen;
+                       uint8_t *sdata;
+                       // Test status and bail if error
+                       dhcpv6_for_each_option(&ia_hdr[1], odata + olen,
+                                       stype, slen, sdata)
+                               if (stype == DHCPV6_OPT_STATUS && slen >= 2 &&
+                                               (sdata[0] || sdata[1]))
+                                       continue;
+
+                       // Update times
+                       if (l_t1 > 0 && t1 > l_t1)
+                               t1 = l_t1;
+
+                       if (l_t2 > 0 && t2 > l_t2)
+                               t2 = l_t2;
+
+                       uint32_t n = dhcpv6_parse_ia(&ia_hdr[1], odata + olen);
+
+                       if (n < t1)
+                               t1 = n;
+
+                       if (n < t2)
+                               t2 = n;
+
+                       if (n < t3)
+                               t3 = n;
                }
        }

listen-address=2001:db8:0:1::
dhcp-range=2001:db8:0:1::50,2001:db8:0:1::200
enable-ra
log-dhcp

/tmp/XiaoMi/odhcp6c/src/script.c: In function ‘s46_to_env’:
/tmp/XiaoMi/odhcp6c/src/script.c:272:2: warning: implicit declaration of function ‘open_memstream’ [-Wimplicit-function-declaration]
  FILE *fp = open_memstream(&str, &strsize);
  ^
/tmp/XiaoMi/odhcp6c/src/script.c:272:13: warning: initialization makes pointer from integer without a cast [enabled by default]
  FILE *fp = open_memstream(&str, &strsize);

Failed to send DHCPV6 message to ff02::1:2 (Address not available)

odhcp6c[16857]: Failed to send RS (Permission denied)
odhcp6c[16857]: Failed to send SOLICIT message to ff02::1:2 (Permission denied)

config interface 'loopback'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'
        option device 'lo'

config globals 'globals'
        option ula_prefix 'fd42:44d4:f241::/48'

config interface 'lan'
        option proto 'static'
        option ip6assign '64'
        option device 'br-lan'
        option _turris_mode 'managed'
        list ipaddr '192.168.178.1/24'

config interface 'wan'
        option ipaddr '192.168.8.10'
        option netmask '255.255.255.0'
        option gateway '192.168.8.1'
        option hostname 'turris'
        option proto 'pppoe'
        option device 'eth2.7'
        option keepalive '20 1'
        option username 'vodafone-vdsl.komplett/*redacted*-static'
        option password '*redacted*'
        option ipv6 '1'

config interface 'guest_turris'
        option enabled '1'
        option proto 'static'
        option ipaddr '10.111.222.1'
        option netmask '255.255.255.0'
        option device 'br-guest-turris'
        option ip6assign '64'

config interface 'wan6'
        option device '@wan'
        option reqprefix 'auto'
        option reqaddress 'try'
        option ip6gw '2a00:11:f982:2a00::1'
        option proto 'dhcpv6'

config device 'br_lan'
        option name 'br-lan'
        option bridge_empty '1'
        list ports 'lan0'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'
        list ports 'lan4'
        option type 'bridge'

config device 'br_guest_turris'
        option bridge_empty '1'
        option type 'bridge'
        option name 'br-guest-turris'

config device 'dev_wan'
        option name 'eth2.7'

config route
        option gateway '192.168.178.42'
        option interface 'lan'
        option target '10.0.0.0'
        option netmask '255.0.0.0'

{
        "up": true,
        "pending": false,
        "available": true,
        "autostart": true,
        "dynamic": false,
        "uptime": 25,
        "l3_device": "pppoe-wan",
        "proto": "pppoe",
        "device": "eth2.7",
        "updated": [
                "addresses",
                "routes"
        ],
        "metric": 0,
        "dns_metric": 0,
        "delegation": true,
        "ipv4-address": [
                {
                        "address": "176.95.*redacted*",
                        "mask": 32,
                        "ptpaddress": "84.58.120.1"
                }
        ],
        "ipv6-address": [

        ],
        "ipv6-prefix": [

        ],
        "ipv6-prefix-assignment": [

        ],
        "route": [
                {
                        "target": "0.0.0.0",
                        "mask": 0,
                        "nexthop": "84.58.120.1",
                        "source": "0.0.0.0/0"
                }
        ],
        "dns-server": [
                "176.95.16.250",
                "176.95.16.251"
        ],
        "dns-search": [

        ],
        "neighbors": [

        ],
        "inactive": {
                "ipv4-address": [

                ],
                "ipv6-address": [

                ],
                "route": [

                ],
                "dns-server": [

                ],
                "dns-search": [

                ],
                "neighbors": [

                ]
        },
        "data": {

        }
}

ip -6 addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1508 state UP qlen 1024
    inet6 fe80::da58:d7ff:fe01:9486/64 scope link 
       valid_lft forever preferred_lft forever
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1024
    inet6 fe80::da58:d7ff:fe01:9487/64 scope link tentative 
       valid_lft forever preferred_lft forever
14: br-guest-turris: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 2a00:11:f982:2aff::1/64 scope global deprecated dynamic 
       valid_lft 5133sec preferred_lft 0sec
    inet6 fd42:44d4:f241::1/64 scope global noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 fe80::c0f8:daff:fea5:34be/64 scope link 
       valid_lft forever preferred_lft forever
15: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fd42:44d4:f241:1::1/64 scope global noprefixroute 
       valid_lft forever preferred_lft forever
    inet6 fe80::da58:d7ff:fe01:9486/64 scope link 
       valid_lft forever preferred_lft forever
22: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::6f0:21ff:fe45:e050/64 scope link 
       valid_lft forever preferred_lft forever
23: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::c2f8:daff:fea5:34be/64 scope link 
       valid_lft forever preferred_lft forever
24: guest_turris_1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::c0f8:daff:fea5:34be/64 scope link 
       valid_lft forever preferred_lft forever
25: guest_turris_0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::4f0:21ff:fe45:e050/64 scope link 
       valid_lft forever preferred_lft forever
854: eth2.7@eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 fe80::da58:d7ff:fe01:9487/64 scope link tentative 
       valid_lft forever preferred_lft forever

root@Teltonika-RUTX11:~# ping6 ftp.sunet.se
PING ftp.sunet.se (2001:6b0:19::165): 56 data bytes
ping6: sendto: Permission denied

#!/bin/sh
[ -z "$2" ] && echo "Error: should be run by odhcpc6c" && exit 1
. /lib/functions.sh
. /lib/netifd/netifd-proto.sh

setup_interface () {
	local device="$1"
	local prefsig=""
	local addrsig=""

	# Apply IPv6 / ND configuration
	HOPLIMIT=$(cat /proc/sys/net/ipv6/conf/$device/hop_limit)
	[ -n "$RA_HOPLIMIT" -a -n "$HOPLIMIT" ] && [ "$RA_HOPLIMIT" -gt "$HOPLIMIT" ] && echo "$RA_HOPLIMIT" > /proc/sys/net/ipv6/conf/$device/hop_limit
	[ -n "$RA_MTU" ] && [ "$RA_MTU" -ge 1280 ] && echo "$RA_MTU" > /proc/sys/net/ipv6/conf/$device/mtu 2>/dev/null
	[ -n "$RA_REACHABLE" ] && [ "$RA_REACHABLE" -gt 0 ] && echo "$RA_REACHABLE" > /proc/sys/net/ipv6/neigh/$device/base_reachable_time_ms
	[ -n "$RA_RETRANSMIT" ] && [ "$RA_RETRANSMIT" -gt 0 ] && echo "$RA_RETRANSMIT" > /proc/sys/net/ipv6/neigh/$device/retrans_time_ms

	proto_init_update "*" 1

	# Merge RA-DNS
	for radns in $RA_DNS; do
		local duplicate=0
		for dns in $RDNSS; do
			[ "$radns" = "$dns" ] && duplicate=1
		done
		[ "$duplicate" = 0 ] && RDNSS="$RDNSS $radns"
	done

	for dns in $RDNSS; do
		proto_add_dns_server "$dns"
	done

	for radomain in $RA_DOMAINS; do
		local duplicate=0
		for domain in $DOMAINS; do
			[ "$radomain" = "$domain" ] && duplicate=1
		done
		[ "$duplicate" = 0 ] && DOMAINS="$DOMAINS $radomain"
	done

	for domain in $DOMAINS; do
		proto_add_dns_search "$domain"
	done

	for prefix in $PREFIXES; do
		proto_add_ipv6_prefix "$prefix"
		prefsig="$prefsig ${prefix%%,*}"
		local entry="${prefix#*/}"
		entry="${entry#*,}"
		entry="${entry#*,}"
		local valid="${entry%%,*}"

		if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
				-z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
			RA_ROUTES="::/0,$SERVER,$valid,4096"
		fi
	done

	for prefix in $USERPREFIX; do
		proto_add_ipv6_prefix "$prefix"
	done

	# Merge addresses
	for entry in $RA_ADDRESSES; do
		local duplicate=0
		local addr="${entry%%/*}"
		for dentry in $ADDRESSES; do
			local daddr="${dentry%%/*}"
			[ "$addr" = "$daddr" ] && duplicate=1
		done
		[ "$duplicate" = "0" ] && ADDRESSES="$ADDRESSES $entry"
	done

	for entry in $ADDRESSES; do
		local addr="${entry%%/*}"
		entry="${entry#*/}"
		local mask="${entry%%,*}"
		entry="${entry#*,}"
		local preferred="${entry%%,*}"
		entry="${entry#*,}"
		local valid="${entry%%,*}"

		proto_add_ipv6_address "$addr" "$mask" "$preferred" "$valid" 1
		addrsig="$addrsig $addr/$mask"

		if [ -z "$RA_ADDRESSES" -a -z "$RA_ROUTES" -a \
				-z "$RA_DNS" -a "$FAKE_ROUTES" = 1 ]; then
			RA_ROUTES="::/0,$SERVER,$valid,4096"
		fi

		# RFC 7278
		if [ "$mask" -eq 64 -a -z "$PREFIXES" -a -n "$EXTENDPREFIX" ]; then
			proto_add_ipv6_prefix "$addr/$mask,$preferred,$valid"

			local raroutes=""
			for route in $RA_ROUTES; do
				local prefix="${route%%/*}"
				local entry="${route#*/}"
				local pmask="${entry%%,*}"
				entry="${entry#*,}"
				local gw="${entry%%,*}"

				[ -z "$gw" -a "$mask" = "$pmask" ] && {
					case "$addr" in
						"${prefix%*::}"*) continue;;
					esac
				}
				raroutes="$raroutes $route"
			done
			RA_ROUTES="$raroutes"
		fi
	done

	for entry in $RA_ROUTES; do
		local duplicate=$NOSOURCEFILTER
		local addr="${entry%%/*}"
		entry="${entry#*/}"
		local mask="${entry%%,*}"
		entry="${entry#*,}"
		local gw="${entry%%,*}"
		entry="${entry#*,}"
		local valid="${entry%%,*}"
		entry="${entry#*,}"
		local metric="${entry%%,*}"

		for xentry in $RA_ROUTES; do
			local xprefix="${xentry%%,*}"
			xentry="${xentry#*,}"
			local xgw="${xentry%%,*}"

			[ -n "$gw" -a -z "$xgw" -a "$addr/$mask" = "$xprefix" ] && duplicate=1
		done

		if [ -z "$gw" -o "$duplicate" = 1 ]; then
			proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid"
		else
			for prefix in $PREFIXES $ADDRESSES; do
				local paddr="${prefix%%,*}"
				proto_add_ipv6_route "$addr" "$mask" "$gw" "$metric" "$valid" "$paddr"
			done
		fi
	done

	proto_add_data
	[ -n "$CER" ] && json_add_string cer "$CER"
	[ -n "$PASSTHRU" ] && json_add_string passthru "$PASSTHRU"
	[ -n "$ZONE" ] && json_add_string zone "$ZONE"
	proto_close_data

	proto_send_update "$INTERFACE"

	MAPTYPE=""
	MAPRULE=""

	if [ -n "$MAPE" -a -f /lib/netifd/proto/map.sh ]; then
		MAPTYPE="map-e"
		MAPRULE="$MAPE"
	elif [ -n "$MAPT" -a -f /lib/netifd/proto/map.sh -a -f /proc/net/nat46/control ]; then
		MAPTYPE="map-t"
		MAPRULE="$MAPT"
	elif [ -n "$LW4O6" -a -f /lib/netifd/proto/map.sh ]; then
		MAPTYPE="lw4o6"
		MAPRULE="$LW4O6"
	fi

	[ -n "$ZONE" ] || ZONE=$(fw3 -q network $INTERFACE 2>/dev/null)

	if [ "$IFACE_MAP" != 0 -a -n "$MAPTYPE" -a -n "$MAPRULE" ]; then
		[ -z "$IFACE_MAP" -o "$IFACE_MAP" = 1 ] && IFACE_MAP=${INTERFACE}_4
		json_init
		json_add_string name "$IFACE_MAP"
		json_add_string ifname "@$INTERFACE"
		json_add_string proto map
		json_add_string type "$MAPTYPE"
		json_add_string _prefsig "$prefsig"
		[ "$MAPTYPE" = lw4o6 ] && json_add_string _addrsig "$addrsig"
		json_add_string rule "$MAPRULE"
		json_add_string tunlink "$INTERFACE"
		[ -n "$ZONE_MAP" ] || ZONE_MAP=$ZONE
		[ -n "$ZONE_MAP" ] && json_add_string zone "$ZONE_MAP"
		[ -n "$ENCAPLIMIT_MAP" ] && json_add_string encaplimit "$ENCAPLIMIT_MAP"
		[ -n "$IFACE_MAP_DELEGATE" ] && json_add_boolean delegate "$IFACE_MAP_DELEGATE"
		json_close_object
		ubus call network add_dynamic "$(json_dump)"
	elif [ -n "$AFTR" -a "$IFACE_DSLITE" != 0 -a -f /lib/netifd/proto/dslite.sh ]; then
		[ -z "$IFACE_DSLITE" -o "$IFACE_DSLITE" = 1 ] && IFACE_DSLITE=${INTERFACE}_4
		json_init
		json_add_string name "$IFACE_DSLITE"
		json_add_string ifname "@$INTERFACE"
		json_add_string proto "dslite"
		json_add_string peeraddr "$AFTR"
		json_add_string tunlink "$INTERFACE"
		[ -n "$ZONE_DSLITE" ] || ZONE_DSLITE=$ZONE
		[ -n "$ZONE_DSLITE" ] && json_add_string zone "$ZONE_DSLITE"
		[ -n "$ENCAPLIMIT_DSLITE" ] && json_add_string encaplimit "$ENCAPLIMIT_DSLITE"
		[ -n "$IFACE_DSLITE_DELEGATE" ] && json_add_boolean delegate "$IFACE_DSLITE_DELEGATE"
		json_close_object
		ubus call network add_dynamic "$(json_dump)"
	elif [ "$IFACE_464XLAT" != 0 -a -f /lib/netifd/proto/464xlat.sh ]; then
		[ -z "$IFACE_464XLAT" -o "$IFACE_464XLAT" = 1 ] && IFACE_464XLAT=${INTERFACE}_4
		json_init
		json_add_string name "$IFACE_464XLAT"
		json_add_string ifname "@$INTERFACE"
		json_add_string proto "464xlat"
		json_add_string tunlink "$INTERFACE"
		json_add_string _addrsig "$addrsig"
		[ -n "$ZONE_464XLAT" ] || ZONE_464XLAT=$ZONE
		[ -n "$ZONE_464XLAT" ] && json_add_string zone "$ZONE_464XLAT"
		[ -n "$IFACE_464XLAT_DELEGATE" ] && json_add_boolean delegate "$IFACE_464XLAT_DELEGATE"
		json_close_object
		ubus call network add_dynamic "$(json_dump)"
	fi

	# TODO: $SNTP_IP $SIP_IP $SNTP_FQDN $SIP_DOMAIN
}

teardown_interface() {
	proto_init_update "*" 0
	proto_send_update "$INTERFACE"
}

case "$2" in
	bound)
		teardown_interface "$1"
		setup_interface "$1"
	;;
	informed|updated|rebound)
		setup_interface "$1"
	;;
	ra-updated)
		[ -n "$ADDRESSES$RA_ADDRESSES$PREFIXES$USERPREFIX" ] && setup_interface "$1"
	;;
	started|stopped|unbound)
		teardown_interface "$1"
	;;
esac

# user rules
[ -f /etc/odhcp6c.user ] && . /etc/odhcp6c.user "$@"

exit 0

# odhcp6c -s /lib/netifd/dhcpv6.script -Ntry -P0 -t120 eth0.2 -e -v
odhcp6c[22466]: (re)starting transaction on eth0.2
Command failed: Not found
odhcp6c[22466]: Starting SOLICIT transaction (timeout 4294967295s, max rc 0)
odhcp6c[22466]: Got a valid reply after 5ms
odhcp6c[22466]: Got a valid reply after 7ms
Command failed: Not found
odhcp6c[22466]: Starting REQUEST transaction (timeout 4294967295s, max rc 10)
odhcp6c[22466]: Send REQUEST message (elapsed 0ms, rc 0)
odhcp6c[22466]: Send REQUEST message (elapsed 955ms, rc 1)
odhcp6c[22466]: Send REQUEST message (elapsed 2835ms, rc 2)
odhcp6c[22466]: Send REQUEST message (elapsed 6665ms, rc 3)
odhcp6c[22466]: Send REQUEST message (elapsed 14675ms, rc 4)
odhcp6c[22466]: Send REQUEST message (elapsed 30705ms, rc 5)
Command failed: Not found
Command failed: Not found
odhcp6c[22466]: Send REQUEST message (elapsed 62635ms, rc 6)
Command failed: Not found
Command failed: Not found
odhcp6c[22466]: Send REQUEST message (elapsed 92515ms, rc 7)
Command failed: Not found
Command failed: Not found
odhcp6c[22466]: Send REQUEST message (elapsed 124761ms, rc 8)
Command failed: Not found
Command failed: Not found
odhcp6c[22466]: Send REQUEST message (elapsed 154545ms, rc 9)
Command failed: Not found
Command failed: Not found
odhcp6c[22466]: (re)starting transaction on eth0.2

interface wlan1
{
        AdvSendAdvert on;
        # Note: {Min,Max}RtrAdvInterval cannot be obtained with radvdump
        AdvManagedFlag off;
        AdvOtherConfigFlag off;
        AdvReachableTime 750000;
        AdvRetransTimer 0;
        AdvCurHopLimit 64;
        AdvDefaultLifetime 1800;
        AdvHomeAgentFlag off;
        AdvDefaultPreference medium;
        AdvSourceLLAddress on;
        AdvLinkMTU 1500;

        prefix 2620:0:1000:fd3e::/64
        {
                AdvValidLifetime 2592000;
                AdvPreferredLifetime 604800;
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr off;
        }; # End of prefix definition

}; # End of interface definition

proto_add_ipv6_route :: 0 fe80::5:73ff:fea0:690 1024 1800
proto_add_ipv6_route 2620:0:1000:fd3e:: 64  256 2592000
proto_add_ipv6_route 2620:0:1000:fd3e:2e0:b8ff:fe76:1b6 64 fe80::5:73ff:fea0:690 1024 1042

2620:0:1000:fd3e::/64 via fe80::5:73ff:fea0:690 dev wlan1  proto static  metric 1024