espressif/openthread
1
0
Fork 0
mirror of https://github.com/espressif/openthread.git synced 2026-08-25 19:59:51 +00:00
Code Issues Packages Projects Releases Wiki Activity

[ip6] do not pass reassembled IPv6 packet to the host (#4964)

Browse Source 
When Border Router is built with `OPENTHREAD_CONFIG_IP6_FRAGMENTATION_ENABLE`
flag and receives the message to its Mesh-Local EID, for a small range of IPv6
lengths, NCP may forward both IPv6 fragments and reassembled packet. This commit
ensures the latter situation does not happen.
This commit is contained in:
Łukasz Duda
2020-05-14 10:29:12 -07:00
committed by GitHub
parent 495f76571f
commit 09dd07d823
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/core/net/ip6.cpp
+3
View File
@@ -1027,6 +1027,9 @@ otError Ip6::ProcessReceiveCallback(const Message & aMessage,
VerifyOrExit(!aFromNcpHost, error = OT_ERROR_NO_ROUTE);
VerifyOrExit(mReceiveIp6DatagramCallback != NULL, error = OT_ERROR_NO_ROUTE);
// Do not forward reassembled IPv6 packets.
VerifyOrExit(aMessage.GetLength() <= kMinimalMtu, error = OT_ERROR_DROP);
if (mIsReceiveIp6FilterEnabled)
{
// do not pass messages sent to an RLOC/ALOC, except Service Locator