The IP protocol was not being used to match fragments with
their packets allowing a carefully constructed packet
with a different protocol to be matched, allowing re-assembly
to complete, creating a packet that would not be re-assembled
by the destination host.
Remove the old tracker reset macro which is no longer being used.
Clear last_seen and remove flags on initialization.
Remove extra call to DefragTrackerInit as it was being called 2x
for each new tracker.
Now that DefragTrackerNew is just a wrapper for DefragTrackerAlloc,
remove it and just call DefragTrackerAlloc directly.
Until now the time out handling in defrag was done using a single
uint32_t that tracked seconds. This lead to corner cases, where
defrag trackers could be timed out a little too early.
Take VLAN IDs into account when re-assembling fragments.
Prevents fragments that would otherwise match, but on different
VLANs from being reassembled with each other.
Tilera's GCC supports the GCC __sync_ intrinsics.
Increase the size of some atomic variables for better performance on
Tile. The Tile-Gx architecture has native support for 32-bit and
64-bit atomic operations, but not 8-bit and 16-bit, which are emulated
using 32-bit atomics, so changing some 16-bit and 8-bit atomic into
ints improves performance.
Increasing the size of the atomic variables modified in this change
does not increase the total size of the structures in which they
reside because of existing padding requirements. The one case that
would increase the size of the structure (Flow_) was confitionalized
to only change the size on Tile.
Jason Ish
Victor Julien
Eric Leblond
Giuseppe Longo
Jason Ish
Ken Steele
William Metcalf
Jason Ish
Jason Ish