dh-dhcp{,6}-client: change the semantics of DUID setting

Both versions of the code are changed to allow the caller to override
DUID using simple rules: duid type and value may be specified, in
which case the caller is responsible to providing the contents,
or just duid type may be specified as DUID_TYPE_EN, in which case we
we fill in the values. In the future more support for other types may
be added, e.g. DUID_TYPE_LLT.

There still remains and ugly discrepancy between dhcp4 and dhcp6 code:
dhcp6 has sd_dhcp6_client_set_duid and sd_dhcp6_client_set_iaid and
requires client->state to be DHCP6_STATE_STOPPED, while dhcp4 has
sd_dhcp_client_set_iaid_duid and will reconfigure the client if it
is not stopped. This commit doesn't touch that part.

This addresses #3127 § 2.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index d355aaa19c..0cb5781c71 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -1037,7 +1037,7 @@ int manager_new(Manager **ret) {
         if (r < 0)
                 return r;
 
-        m->duid_type = _DUID_TYPE_INVALID;
+        m->duid_type = DUID_TYPE_EN;
 
         *ret = m;
         m = NULL;