linux_dsm_epyc7002/net/tls
Vakul Garg 2b794c4098 tls: Return type of non-data records retrieved using MSG_PEEK in recvmsg
The patch enables returning 'type' in msghdr for records that are
retrieved with MSG_PEEK in recvmsg. Further it prevents records peeked
from socket from getting clubbed with any other record of different
type when records are subsequently dequeued from strparser.

For each record, we now retain its type in sk_buff's control buffer
cb[]. Inside control buffer, record's full length and offset are already
stored by strparser in 'struct strp_msg'. We store record type after
'struct strp_msg' inside 'struct tls_msg'. For tls1.2, the type is
stored just after record dequeue. For tls1.3, the type is stored after
record has been decrypted.

Inside process_rx_list(), before processing a non-data record, we check
that we must be able to return back the record type to the user
application. If not, the decrypted records in tls context's rx_list is
left there without consuming any data.

Fixes: 692d7b5d1f ("tls: Fix recvmsg() to be able to peek across multiple records")
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-24 21:58:38 -08:00
..
Kconfig tls: convert to generic sk_msg interface 2018-10-15 12:23:19 -07:00
Makefile net/tls: Add generic NIC offload infrastructure 2018-05-01 09:42:47 -04:00
tls_device_fallback.c net: tls: Add tls 1.3 support 2019-02-01 15:00:55 -08:00
tls_device.c net/tls: Move protocol constants from cipher context to tls context 2019-02-19 10:40:36 -08:00
tls_main.c net/tls: Move protocol constants from cipher context to tls context 2019-02-19 10:40:36 -08:00
tls_sw.c tls: Return type of non-data records retrieved using MSG_PEEK in recvmsg 2019-02-24 21:58:38 -08:00