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Merged own patch for bug #390 (rewrite zebra/zebra_rib.c:nexthop_active_update())

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This commit is contained in:
Denis Ovsienko 2007-08-14 09:46:48 +00:00
parent dc95824ae1
commit 03e232a458
2 changed files with 22 additions and 12 deletions
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5
zebra/ChangeLog
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@ -1,3 +1,8 @@
2007-08-14 Denis Ovsienko
* zebra_rib.c: (nexthop_active_update) Added a comment
and rewrote nexthop iteration.
2007-08-13 Denis Ovsienko
* kernel_socket.c: normalize rtm_type_str so it can be handled

29
zebra/zebra_rib.c
View File

@ -881,27 +881,32 @@ nexthop_active_check (struct route_node *rn, struct rib *rib,
return CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
}
/* Iterate over all nexthops of the given RIB entry and refresh their
* ACTIVE flag. rib->nexthop_active_num is updated accordingly. If any
* nexthop is found to toggle the ACTIVE flag, the whole rib structure
* is flagged with ZEBRA_FLAG_CHANGED. The 4th 'set' argument is
* transparently passed to nexthop_active_check().
*
* Return value is the new number of active nexthops.
*/
static int
nexthop_active_update (struct route_node *rn, struct rib *rib, int set)
{
struct nexthop *nexthop;
int active;
int prev_active, new_active;
rib->nexthop_active_num = 0;
UNSET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
{
active = CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
nexthop_active_check (rn, rib, nexthop, set);
if ((MULTIPATH_NUM == 0 || rib->nexthop_active_num < MULTIPATH_NUM)
&& active != CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
SET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
rib->nexthop_active_num++;
}
{
prev_active = CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE);
if ((new_active = nexthop_active_check (rn, rib, nexthop, set)))
rib->nexthop_active_num++;
if (prev_active != new_active)
SET_FLAG (rib->flags, ZEBRA_FLAG_CHANGED);
}
return rib->nexthop_active_num;
}