From 26811cc9f55acf835f7fdadc5ff2bbd6f06bc3ac Mon Sep 17 00:00:00 2001 From: Davide Caratti Date: Fri, 30 Aug 2019 12:25:49 +0200 Subject: net: tls: export protocol version, cipher, tx_conf/rx_conf to socket diag When an application configures kernel TLS on top of a TCP socket, it's now possible for inet_diag_handler() to collect information regarding the protocol version, the cipher type and TX / RX configuration, in case INET_DIAG_INFO is requested. Signed-off-by: Davide Caratti Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- include/net/tls.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include/net/tls.h') diff --git a/include/net/tls.h b/include/net/tls.h index 4997742475cd..ec3c3ed2c6c3 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -431,6 +431,23 @@ static inline bool is_tx_ready(struct tls_sw_context_tx *ctx) return READ_ONCE(rec->tx_ready); } +static inline u16 tls_user_config(struct tls_context *ctx, bool tx) +{ + u16 config = tx ? ctx->tx_conf : ctx->rx_conf; + + switch (config) { + case TLS_BASE: + return TLS_CONF_BASE; + case TLS_SW: + return TLS_CONF_SW; + case TLS_HW: + return TLS_CONF_HW; + case TLS_HW_RECORD: + return TLS_CONF_HW_RECORD; + } + return 0; +} + struct sk_buff * tls_validate_xmit_skb(struct sock *sk, struct net_device *dev, struct sk_buff *skb); -- cgit v1.2.3