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platform: pass optional padding to _rebase_relative_time_on_now()

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_rebase_relative_time_on_now() is used both by _address_get_lifetime()/nm_platform_ip[46]_address_sync()
and the to_string() functions.

In the latter case, we want to print the original value, without padding. Otherwise in
the addresses are printed in the logs with an additional 5 seconds
padding, which is confusing.

For adding addresses in platform however, we still want to keep the
padding. So pass it on as additional parameter.

Signed-off-by: Thomas Haller <thaller@redhat.com>
This commit is contained in:
Thomas Haller 2014-06-07 11:32:40 +02:00
parent b633711572
commit 63ef089f69
1 changed files with 12 additions and 10 deletions
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22
src/platform/nm-platform.c
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@ -1564,18 +1564,18 @@ array_contains_ip6_address (const GArray *addresses, const NMPlatformIP6Address
* on the new timestamp @now.
*/
static guint32
_rebase_relative_time_on_now (guint32 timestamp, guint32 duration, guint32 now)
_rebase_relative_time_on_now (guint32 timestamp, guint32 duration, guint32 now, guint32 padding)
{
gint64 t;
if (duration == NM_PLATFORM_LIFETIME_PERMANENT)
return NM_PLATFORM_LIFETIME_PERMANENT;
/* For timestamp>now, just accept it and calculate the expected(?) result. */
/* For timestamp > now, just accept it and calculate the expected(?) result. */
t = (gint64) timestamp + (gint64) duration - (gint64) now;
/* Pad the timestamp by 5 seconds to avoid potential races. */
t += 5;
/* Optional padding to avoid potential races. */
t += (gint64) padding;
if (t <= 0)
return 0;
@ -1585,7 +1585,7 @@ _rebase_relative_time_on_now (guint32 timestamp, guint32 duration, guint32 now)
}
static gboolean
_address_get_lifetime (const NMPlatformIPAddress *address, guint32 now, guint32 *out_lifetime, guint32 *out_preferred)
_address_get_lifetime (const NMPlatformIPAddress *address, guint32 now, guint32 padding, guint32 *out_lifetime, guint32 *out_preferred)
{
gint32 lifetime, preferred;
@ -1593,10 +1593,10 @@ _address_get_lifetime (const NMPlatformIPAddress *address, guint32 now, guint32
*out_lifetime = NM_PLATFORM_LIFETIME_PERMANENT;
*out_preferred = NM_PLATFORM_LIFETIME_PERMANENT;
} else {
lifetime = _rebase_relative_time_on_now (address->timestamp, address->lifetime, now);
lifetime = _rebase_relative_time_on_now (address->timestamp, address->lifetime, now, padding);
if (!lifetime)
return FALSE;
preferred = _rebase_relative_time_on_now (address->timestamp, address->preferred, now);
preferred = _rebase_relative_time_on_now (address->timestamp, address->preferred, now, padding);
if (preferred > lifetime) {
g_warn_if_reached ();
preferred = lifetime;
@ -1645,7 +1645,8 @@ nm_platform_ip4_address_sync (int ifindex, const GArray *known_addresses)
const NMPlatformIP4Address *known_address = &g_array_index (known_addresses, NMPlatformIP4Address, i);
guint32 lifetime, preferred;
if (!_address_get_lifetime ((NMPlatformIPAddress *) known_address, now, &lifetime, &preferred))
/* add a padding of 5 seconds to avoid potential races. */
if (!_address_get_lifetime ((NMPlatformIPAddress *) known_address, now, 5, &lifetime, &preferred))
continue;
if (!nm_platform_ip4_address_add (ifindex, known_address->address, known_address->peer_address, known_address->plen, lifetime, preferred, known_address->label))
@ -1696,7 +1697,8 @@ nm_platform_ip6_address_sync (int ifindex, const GArray *known_addresses)
const NMPlatformIP6Address *known_address = &g_array_index (known_addresses, NMPlatformIP6Address, i);
guint32 lifetime, preferred;
if (!_address_get_lifetime ((NMPlatformIPAddress *) known_address, now, &lifetime, &preferred))
/* add a padding of 5 seconds to avoid potential races. */
if (!_address_get_lifetime ((NMPlatformIPAddress *) known_address, now, 5, &lifetime, &preferred))
continue;
if (!nm_platform_ip6_address_add (ifindex, known_address->address,
@ -2079,7 +2081,7 @@ _lifetime_to_string (guint32 timestamp, guint32 lifetime, gint32 now, char *buf,
return "forever";
g_snprintf (buf, buf_size, "%usec",
_rebase_relative_time_on_now (timestamp, lifetime, now));
_rebase_relative_time_on_now (timestamp, lifetime, now, 0));
return buf;
}