Should be no functional change, but avoids spurious log
messages when in operstate UNKNOWN and !IFF_LOWER_UP.
flags_added = (link->flags ^ flags) & flags;
flags_removed = (link->flags ^ flags) & link->flags;
flags_added = (link->flags ^ flags) & flags;
flags_removed = (link->flags ^ flags) & link->flags;
- generic_flags = ~(IFF_UP | IFF_LOWER_UP | IFF_RUNNING);
+ generic_flags = ~(IFF_UP | IFF_LOWER_UP | IFF_DORMANT);
- /* consider link to have carrier when both RUNNING and LOWER_UP, as RUNNING
- may mean that the oper state is unknown, in which case we should fall back to
- simply trust LOWER_UP, even thought that is less reliable
+ /* consider link to have carrier when LOWER_UP and !DORMANT
+
+ TODO: use proper operstates once we start supporting 802.1X
+
+ see Documentation/networking/operstates.txt in the kernel sources
- carrier_gained = ((flags_added & IFF_LOWER_UP) && (flags & IFF_RUNNING)) ||
- ((flags_added & IFF_RUNNING) && (flags & IFF_LOWER_UP));
- carrier_lost = ((link->flags & (IFF_RUNNING | IFF_LOWER_UP)) ==
- (IFF_RUNNING | IFF_LOWER_UP)) &&
- (flags_removed & (IFF_LOWER_UP | IFF_RUNNING));
+ carrier_gained = (((flags_added & IFF_LOWER_UP) && !(flags & IFF_DORMANT)) ||
+ ((flags_removed & IFF_DORMANT) && (flags & IFF_LOWER_UP)));
+ carrier_lost = ((link->flags & IFF_LOWER_UP) && !(link->flags & IFF_DORMANT)) &&
+ ((flags_removed & IFF_LOWER_UP) || (flags_added & IFF_DORMANT));
else if (flags_removed & IFF_LOWER_UP)
log_debug_link(link, "link is lower down");
else if (flags_removed & IFF_LOWER_UP)
log_debug_link(link, "link is lower down");
- if (flags_added & IFF_RUNNING)
- log_debug_link(link, "link is running");
- else if (flags_removed & IFF_RUNNING)
- log_debug_link(link, "link is not running");
+ if (flags_added & IFF_DORMANT)
+ log_debug_link(link, "link is dormant");
+ else if (flags_removed & IFF_DORMANT)
+ log_debug_link(link, "link is not dormant");
/* link flags are currently at most 18 bits, let's default to printing 20 */
if (flags_added & generic_flags)
/* link flags are currently at most 18 bits, let's default to printing 20 */
if (flags_added & generic_flags)
if (flags_removed & generic_flags)
log_debug_link(link, "unknown link flags lost: %#.5x (ignoring)",
if (flags_removed & generic_flags)
log_debug_link(link, "unknown link flags lost: %#.5x (ignoring)",
- flags_removed & generic_flags);
+ flags_removed & generic_flags);
if (carrier_gained) {
log_info_link(link, "gained carrier");
if (carrier_gained) {
log_info_link(link, "gained carrier");