File 0001-dhcp-clear-hostname-on-lease-recovery-reboot.patch of Package wicked.6334

From 9590d61a86cf5e0aecaef60a43376ba75d26b1f2 Mon Sep 17 00:00:00 2001
From: Nirmoy Das <ndas@suse.de>
Date: Thu, 23 Nov 2017 15:28:57 +0100
Subject: [PATCH] dhcp: clear hostname on lease recovery/reboot(bsc#1057007)

ref:https://gitlab.suse.de/mtomaschewski/wicked/commit/7f7b696d1db281b4198f15f07ab3cabace0e25d5

diff --git a/src/dhcp4/fsm.c b/src/dhcp4/fsm.c
index 1cb6cfe1..c1dce55f 100644
--- a/src/dhcp4/fsm.c
+++ b/src/dhcp4/fsm.c
@@ -400,6 +400,7 @@ __ni_dhcp4_fsm_discover(ni_dhcp4_device_t *dev, int scan_offers)
 	lease->uuid = dev->config->uuid;
 	lease->fqdn.enabled = NI_TRISTATE_DEFAULT;
 	lease->fqdn.qualify = dev->config->fqdn.qualify;
+	ni_string_free(&lease->hostname);
 
 	dev->fsm.state = NI_DHCP4_STATE_SELECTING;
 	dev->dhcp4.accept_any_offer = 1;
@@ -528,6 +529,10 @@ ni_dhcp4_fsm_reboot(ni_dhcp4_device_t *dev)
 		deadline = expire_time;
 	dev->config->capture_timeout = deadline - now;
 
+	dev->lease->fqdn.enabled = NI_TRISTATE_DEFAULT;
+	dev->lease->fqdn.qualify = dev->config->fqdn.qualify;
+	ni_string_free(&dev->lease->hostname);
+
 	ni_dhcp4_fsm_set_timeout(dev, dev->config->capture_timeout);
 	ni_dhcp4_device_send_message(dev, DHCP4_REQUEST, dev->lease);
 }
@@ -940,6 +945,7 @@ ni_dhcp4_recover_lease(ni_dhcp4_device_t *dev)
 
 	lease->fqdn.enabled = NI_TRISTATE_DEFAULT;
 	lease->fqdn.qualify = dev->config->fqdn.qualify;
+	ni_string_free(&lease->hostname);
 
 	/* We cannot renew/rebind/reboot without it */
 	ni_sockaddr_set_ipv4(&addr, lease->dhcp4.server_id, 0);
diff --git a/src/dhcp4/protocol.c b/src/dhcp4/protocol.c
index 553c16c9..0a7ceaaa 100644
--- a/src/dhcp4/protocol.c
+++ b/src/dhcp4/protocol.c
@@ -1091,7 +1091,6 @@ __ni_dhcp4_build_msg_request_reboot(const ni_dhcp4_device_t *dev,
 	unsigned int msg_code = DHCP4_REQUEST;
 	ni_dhcp4_message_t *message;
 	ni_sockaddr_t addr;
-	const ni_dhcp_fqdn_t *fqdn;
 
 	/* Request an lease after reboot to reuse old lease (no server id) */
 	ni_sockaddr_set_ipv4(&addr, lease->dhcp4.address, 0);
@@ -1115,12 +1114,8 @@ __ni_dhcp4_build_msg_request_reboot(const ni_dhcp4_device_t *dev,
 			"%s: using reused ip-address: %s",
 			dev->ifname, ni_sockaddr_print(&addr));
 
-	if (lease->fqdn.enabled == NI_TRISTATE_DEFAULT)
-		fqdn = &options->fqdn;
-	else
-		fqdn = &lease->fqdn;
-	if (__ni_dhcp4_build_msg_put_our_hostname(dev, msgbuf, fqdn,
-			lease->hostname ? lease->hostname : options->hostname) < 0)
+	if (__ni_dhcp4_build_msg_put_our_hostname(dev, msgbuf, &options->fqdn,
+				options->hostname) < 0)
 		return -1;
 
 	if (__ni_dhcp4_build_msg_put_option_request(dev, msg_code, msgbuf) <  0)
-- 
2.13.6