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Allow --dhcp-authoritative to control recreation of missing leases in DHCPv6.

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Change the behaviour of the DHVPv6 server when a REBIND message
is received but no lease exists. Under these circumstances a new
lease is created _only_ when the --dhcp-authoritative option is
set. This matches the behavior of the DHCPv4 server.
This commit is contained in:
Simon Kelley
2025-07-22 21:51:47 +01:00
parent 3ceea9e755
commit 3034746748
3 changed files with 12 additions and 3 deletions
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6
src/rfc3315.c
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@@ -982,8 +982,10 @@ static int dhcp6_no_relay(struct state *state, int msg_type, unsigned char *inbu
{
if (msg_type == DHCP6REBIND)
{
/* When rebinding, we can create a lease if it doesn't exist. */
lease = lease6_allocate(&req_addr, state->ia_type == OPTION6_IA_NA ? LEASE_NA : LEASE_TA);
/* When rebinding, we can create a lease if it doesn't exist, as long
as --dhcp-authoritative is set. */
if (option_bool(OPT_AUTHORITATIVE))
lease = lease6_allocate(&req_addr, state->ia_type == OPTION6_IA_NA ? LEASE_NA : LEASE_TA);
if (lease)
lease_set_iaid(lease, state->iaid);
else