diff options
| author | David Härdeman | 2025-10-10 09:43:11 +0000 |
|---|---|---|
| committer | Robert Marko | 2025-10-19 17:46:22 +0000 |
| commit | 7dee632beedbee923c0f993d8e332a8bb3677cc8 (patch) | |
| tree | dc2ce33c0cb7c46676a3869fb27f1f4d548b10fc | |
| parent | 9151c7015ed2116b92a82b27c122310f1a91a426 (diff) | |
| download | openwrt-7dee632beedbee923c0f993d8e332a8bb3677cc8.tar.gz | |
odhcp6c: use the global DHCP DUID for DHCPv6
odhcp6c already supports custom DUIDS on a per-interface basis. When no client
identifier has been set, odhcp6c will generate one on the basis of the MAC
address of the given interface.
This is contrary to how DUIDs are meant to be used, as the client identifier
will vary from interface to interface, while it is meant to remain stable for a
given host, no matter how the network hardware changes (see RFC8415, §11).
Fix this by letting odhcp6c use the global DHCP DUID, if configured.
Signed-off-by: David Härdeman <david@hardeman.nu>
Link: https://github.com/openwrt/openwrt/pull/20359
Signed-off-by: Robert Marko <robimarko@gmail.com>
| -rwxr-xr-x | package/network/ipv6/odhcp6c/files/dhcpv6.sh | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/package/network/ipv6/odhcp6c/files/dhcpv6.sh b/package/network/ipv6/odhcp6c/files/dhcpv6.sh index e8d07ebaa7..00dd610dfa 100755 --- a/package/network/ipv6/odhcp6c/files/dhcpv6.sh +++ b/package/network/ipv6/odhcp6c/files/dhcpv6.sh @@ -2,6 +2,7 @@ . /lib/functions.sh . ../netifd-proto.sh +. /lib/config/uci.sh init_proto "$@" proto_dhcpv6_init_config() { @@ -66,6 +67,7 @@ proto_dhcpv6_setup() { [ -z "$reqprefix" -o "$reqprefix" = "auto" ] && reqprefix=0 [ "$reqprefix" != "no" ] && append opts "-P$reqprefix" + [ -z "$clientid" ] && clientid="$(uci_get network @globals[0] dhcp_default_duid)" [ -n "$clientid" ] && append opts "-c$clientid" [ "$defaultreqopts" = "0" ] && append opts "-R" |