From: Steffen Klassert steffen.klassert@secunet.com
[ Upstream commit f39b683d35dfa93a58f1b400a8ec0ff81296b37c ]
The ixgbe driver currently does IPsec TX offloading based on an existing secpath. However, the secpath can also come from the RX side, in this case it is misinterpreted for TX offload and the packets are dropped with a "bad sa_idx" error. Fix this by using the xfrm_offload() function to test for TX offload.
Fixes: 592594704761 ("ixgbe: process the Tx ipsec offload") Reported-by: Michael Marley michael@michaelmarley.com Signed-off-by: Steffen Klassert steffen.klassert@secunet.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -34,6 +34,7 @@ #include <net/tc_act/tc_mirred.h> #include <net/vxlan.h> #include <net/mpls.h> +#include <net/xfrm.h>
#include "ixgbe.h" #include "ixgbe_common.h" @@ -8599,7 +8600,8 @@ netdev_tx_t ixgbe_xmit_frame_ring(struct #endif /* IXGBE_FCOE */
#ifdef CONFIG_XFRM_OFFLOAD - if (skb->sp && !ixgbe_ipsec_tx(tx_ring, first, &ipsec_tx)) + if (xfrm_offload(skb) && + !ixgbe_ipsec_tx(tx_ring, first, &ipsec_tx)) goto out_drop; #endif tso = ixgbe_tso(tx_ring, first, &hdr_len, &ipsec_tx);