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dhcp: nm_dhcp_dhclient_read_lease_ip_configs() must anchor the address lifetime at *now*

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nm_dhcp_dhclient_read_lease_ip_configs() calculates the remaining time
until the address expires. It must anchor the lifetimes by setting the
@timestamp to nm_utils_get_monotonic_timestamp_s().

Signed-off-by: Thomas Haller <thaller@redhat.com>
This commit is contained in:
Thomas Haller
2014-06-09 09:29:14 +02:00
parent 5174976cc1
commit 6723745fe0
1 changed files with 5 additions and 1 deletions
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6
src/dhcp-manager/nm-dhcp-dhclient-utils.c
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@@ -27,6 +27,7 @@
#include "nm-dhcp-dhclient-utils.h"
#include "nm-ip4-config.h"
#include "nm-utils.h"
#include "NetworkManagerUtils.h"
#define CLIENTID_TAG "send dhcp-client-identifier"
#define CLIENTID_FORMAT CLIENTID_TAG " \"%s\"; # added by NetworkManager"
@@ -530,6 +531,7 @@ nm_dhcp_dhclient_read_lease_ip_configs (const char *iface,
GSList *parsed = NULL, *iter, *leases = NULL;
char **line, **split = NULL;
GHashTable *hash = NULL;
gint32 now_monotonic_ts;
g_return_val_if_fail (contents != NULL, NULL);
@@ -570,6 +572,7 @@ nm_dhcp_dhclient_read_lease_ip_configs (const char *iface,
g_date_time_ref (now);
else
now = g_date_time_new_now_utc ();
now_monotonic_ts = nm_utils_get_monotonic_timestamp_s ();
for (iter = parsed; iter; iter = g_slist_next (iter)) {
NMIP4Config *ip4;
@@ -593,7 +596,7 @@ nm_dhcp_dhclient_read_lease_ip_configs (const char *iface,
continue;
/* scale expiry to seconds (and CLAMP into the range of guint32) */
expiry = CLAMP (expiry / G_TIME_SPAN_SECOND, 0, G_MAXUINT32-1);
expiry = CLAMP (expiry / G_TIME_SPAN_SECOND, 0, NM_PLATFORM_LIFETIME_PERMANENT-1);
if (expiry <= 0) {
/* the address is already expired. Don't even add it. */
continue;
@@ -624,6 +627,7 @@ nm_dhcp_dhclient_read_lease_ip_configs (const char *iface,
if (!address.plen)
address.plen = nm_utils_ip4_get_default_prefix (address.address);
address.timestamp = now_monotonic_ts;
address.lifetime = address.preferred = expiry;
address.source = NM_PLATFORM_SOURCE_DHCP;