[PATCH v16 01/10] net: tls: reject TLS 1.3 offload in chcr_ktls and nfp drivers
From: Rishikesh Jethwani <hidden>
Date: 2026-08-07 18:39:55
Subsystem:
cxgb4 inline crypto driver, netronome ethernet drivers, networking drivers, the rest · Maintainers:
Ayush Sawal, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
These drivers only support TLS 1.2. Return early when TLS 1.3 is requested to prevent unsupported hardware offload attempts. Signed-off-by: Rishikesh Jethwani <redacted> --- drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c | 3 +++ drivers/net/ethernet/netronome/nfp/crypto/tls.c | 3 +++ 2 files changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
index f5acd4be1e69..29e108ce6764 100644
--- a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c
+++ b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.c@@ -431,6 +431,9 @@ static int chcr_ktls_dev_add(struct net_device *netdev, struct sock *sk, atomic64_inc(&port_stats->ktls_tx_connection_open); u_ctx = adap->uld[CXGB4_ULD_KTLS].handle; + if (crypto_info->version != TLS_1_2_VERSION) + goto out; + if (direction == TLS_OFFLOAD_CTX_DIR_RX) { pr_err("not expecting for RX direction\n"); goto out;
diff --git a/drivers/net/ethernet/netronome/nfp/crypto/tls.c b/drivers/net/ethernet/netronome/nfp/crypto/tls.c
index 9983d7aa2b9c..13864c6a55dc 100644
--- a/drivers/net/ethernet/netronome/nfp/crypto/tls.c
+++ b/drivers/net/ethernet/netronome/nfp/crypto/tls.c@@ -287,6 +287,9 @@ nfp_net_tls_add(struct net_device *netdev, struct sock *sk, BUILD_BUG_ON(offsetof(struct nfp_net_tls_offload_ctx, rx_end) > TLS_DRIVER_STATE_SIZE_RX); + if (crypto_info->version != TLS_1_2_VERSION) + return -EOPNOTSUPP; + if (!nfp_net_cipher_supported(nn, crypto_info->cipher_type, direction)) return -EOPNOTSUPP;
--
2.25.1