Daniel Borkmann 06030dbaf3 tls: fix waitall behavior in tls_sw_recvmsg ... 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: c46234ebb4 ("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>		2018-06-15 09:14:30 -07:00
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Kconfig	net/tls: Add generic NIC offload infrastructure	2018-05-01 09:42:47 -04:00
Makefile	net/tls: Add generic NIC offload infrastructure	2018-05-01 09:42:47 -04:00
tls_device_fallback.c	net/tls: Add generic NIC offload infrastructure	2018-05-01 09:42:47 -04:00
tls_device.c	tls: Fix tls_device initialization	2018-05-10 17:54:20 -04:00
tls_main.c	tls: fix NULL pointer dereference on poll	2018-06-11 16:29:54 -07:00
tls_sw.c	tls: fix waitall behavior in tls_sw_recvmsg	2018-06-15 09:14:30 -07:00