https://github.com/torvalds/linux
Revision 06030dbaf3b6c5801dcdb7fe4fbab3b91c8da84a authored by Daniel Borkmann on 15 June 2018, 01:07:46 UTC, committed by David S. Miller on 15 June 2018, 16:14:30 UTC
Current behavior in tls_sw_recvmsg() is to wait for incoming tls
messages and copy up to exactly len bytes of data that the user
provided. This is problematic in the sense that i) if no packet
is currently queued in strparser we keep waiting until one has been
processed and pushed into tls receive layer for tls_wait_data() to
wake up and push the decrypted bits to user space. Given after
tls decryption, we're back at streaming data, use sock_rcvlowat()
hint from tcp socket instead. Retain current behavior with MSG_WAITALL
flag and otherwise use the hint target for breaking the loop and
returning to application. This is done if currently no ctx->recv_pkt
is ready, otherwise continue to process it from our strparser
backlog.
Fixes: c46234ebb4d1 ("tls: RX path for ktls")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent a447da7
Tip revision: 06030dbaf3b6c5801dcdb7fe4fbab3b91c8da84a authored by Daniel Borkmann on 15 June 2018, 01:07:46 UTC
tls: fix waitall behavior in tls_sw_recvmsg
tls: fix waitall behavior in tls_sw_recvmsg
Tip revision: 06030db
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| block | ||
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| crypto | ||
| drivers | ||
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| include | ||
| init | ||
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| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
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| security | ||
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| .clang-format | -rw-r--r-- | 12.8 KB |
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.5 KB |
| .mailmap | -rw-r--r-- | 9.3 KB |
| COPYING | -rw-r--r-- | 423 bytes |
| CREDITS | -rw-r--r-- | 96.3 KB |
| Kbuild | -rw-r--r-- | 2.2 KB |
| Kconfig | -rw-r--r-- | 321 bytes |
| MAINTAINERS | -rw-r--r-- | 447.9 KB |
| Makefile | -rw-r--r-- | 61.1 KB |
| README | -rw-r--r-- | 800 bytes |
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