Respect the number of bytes read per datagram when using recvmmsg #13399
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Motivation: We didnt correctly use the msg_len field after using recvmmsg. This resulted in incorrectly slicing the buffer and so returning larger datagrams then actually received. Modifications: - Correctly use the msg_len field after recvmmsg - Adjust test to cover this defect. Result: Be able to use recvmmsg without the risk of generating invalid packets.
franz1981
approved these changes
May 24, 2023
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@franz1981 trying to improve quic perf and wondering why the packets were invalid. |
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normanmaurer
added a commit
that referenced
this pull request
May 25, 2023
…3399) Motivation: We didnt correctly use the msg_len field after using recvmmsg. This resulted in incorrectly slicing the buffer and so returning larger datagrams then actually received. Modifications: - Correctly use the msg_len field after recvmmsg - Adjust test to cover this defect. Result: Be able to use recvmmsg without the risk of generating invalid packets.
dongjoon-hyun
pushed a commit
to apache/spark
that referenced
this pull request
Jun 28, 2023
### What changes were proposed in this pull request? This pr aims to upgrade netty from 4.1.92 to 4.1.93. ### Why are the changes needed? 1.v4.1.92 VS v4.1.93 netty/netty@netty-4.1.92.Final...netty-4.1.93.Final 2.The new version brings some bug fix, eg: - Reset byte buffer in loop for AbstractDiskHttpData.setContent ([#13320](netty/netty#13320)) - OpenSSL MAX_CERTIFICATE_LIST_BYTES option supported ([#13365](netty/netty#13365)) - Adapt to DirectByteBuffer constructor in Java 21 ([#13366](netty/netty#13366)) - HTTP/2 encoder: allow HEADER_TABLE_SIZE greater than Integer.MAX_VALUE ([#13368](netty/netty#13368)) - Upgrade to latest netty-tcnative to fix memory leak ([#13375](netty/netty#13375)) - H2/H2C server stream channels deactivated while write still in progress ([#13388](netty/netty#13388)) - Channel#bytesBefore(un)writable off by 1 ([#13389](netty/netty#13389)) - HTTP/2 should forward shutdown user events to active streams ([#13394](netty/netty#13394)) - Respect the number of bytes read per datagram when using recvmmsg ([#13399](netty/netty#13399)) 3.The release notes as follows: - https://netty.io/news/2023/05/25/4-1-93-Final.html 4.Why not upgrade to `4-1-94-Final` version? Because the return value of the 'threadCache()' (from `PoolThreadCache` to `PoolArenasCache`) method of the netty Inner class used in the 'arrow memory netty' version '12.0.1' has changed and belongs to break change, let's wait for the upgrade of the 'arrow memory netty' before upgrading to the '4-1-94-Final' version. The reference is as follows: https://github.com/apache/arrow/blob/6af660f48472b8b45a5e01b7136b9b040b185eb1/java/memory/memory-netty/src/main/java/io/netty/buffer/PooledByteBufAllocatorL.java#L164 https://github.com/netty/netty/blob/da1a448d5bc4f36cc1744db93fcaf64e198db2bd/buffer/src/main/java/io/netty/buffer/PooledByteBufAllocator.java#L732-L736 ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Pass GA. Closes #41681 from panbingkun/upgrade_netty. Authored-by: panbingkun <pbk1982@gmail.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
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Motivation:
We didnt correctly use the msg_len field after using recvmmsg. This resulted in incorrectly slicing the buffer and so returning larger datagrams then actually received.
Modifications:
Result:
Be able to use recvmmsg without the risk of generating invalid packets.