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diff -up dhcp-4.2.0/client/dhc6.c.honor-expired dhcp-4.2.0/client/dhc6.c
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--- dhcp-4.2.0/client/dhc6.c.honor-expired 2010-10-07 12:55:37.000000000 +0200
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+++ dhcp-4.2.0/client/dhc6.c 2010-10-07 12:56:43.000000000 +0200
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@@ -1405,6 +1405,32 @@ start_info_request6(struct client_state
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go_daemon();
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}
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+/* Run through the addresses in lease and return true if there's any unexpired.
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+ * Return false otherwise.
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+ */
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+isc_boolean_t
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+unexpired_address_in_lease(struct dhc6_lease *lease)
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+{
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+ struct dhc6_ia *ia;
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+ struct dhc6_addr *addr;
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+
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+ for (ia = lease->bindings ; ia != NULL ; ia = ia->next) {
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+ for (addr = ia->addrs ; addr != NULL ; addr = addr->next) {
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+ if (addr->flags & DHC6_ADDR_EXPIRED)
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+ continue;
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+
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+ if (addr->starts + addr->max_life > cur_time) {
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+ return ISC_TRUE;
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+ }
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+ }
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+ }
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+
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+ log_info("PRC: Previous lease is devoid of active addresses."
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+ " Re-initializing.");
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+
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+ return ISC_FALSE;
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+}
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+
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/*
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* start_confirm6() kicks off an "init-reboot" version of the process, at
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* startup to find out if old bindings are 'fair' and at runtime whenever
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@@ -1417,8 +1446,10 @@ start_confirm6(struct client_state *clie
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/* If there is no active lease, there is nothing to check. */
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if ((client->active_lease == NULL) ||
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- !active_prefix(client) ||
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- client->active_lease->released) {
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+ !active_prefix(client) ||
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+ client->active_lease->released ||
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+ !unexpired_address_in_lease(client->active_lease)) {
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+ dhc6_lease_destroy(&client->active_lease, MDL);
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start_init6(client);
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return;
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}
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