From ac6c528fb22d427d7beacd73c247ffd97389dbfe Mon Sep 17 00:00:00 2001 From: Aloys Augustin Date: Thu, 15 Apr 2021 18:12:51 +0200 Subject: [PATCH] ip: fix offload flags handling The per-protocol offload flags only make sense if F_OFFLOAD is set on the vlib buffer main flags. vnet_calc_checksums_inline is called from many places which should do this check and don't, moving the check to this function is less error prone and shouldn't have an impact on performance since the function is always_inline. Type: fix Change-Id: I0297f109f31e409f07bfbaea3cd8b90c659658c4 Signed-off-by: Aloys Augustin --- src/vnet/interface_output.c | 5 ++--- src/vnet/interface_output.h | 3 +++ 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c index 2d220b7257b..7d058c20037 100644 --- a/src/vnet/interface_output.c +++ b/src/vnet/interface_output.c @@ -165,9 +165,8 @@ vnet_interface_output_trace (vlib_main_t * vm, static_always_inline void vnet_interface_output_handle_offload (vlib_main_t *vm, vlib_buffer_t *b) { - if (b->flags & VNET_BUFFER_F_OFFLOAD) - vnet_calc_checksums_inline (vm, b, b->flags & VNET_BUFFER_F_IS_IP4, - b->flags & VNET_BUFFER_F_IS_IP6); + vnet_calc_checksums_inline (vm, b, b->flags & VNET_BUFFER_F_IS_IP4, + b->flags & VNET_BUFFER_F_IS_IP6); } static_always_inline uword diff --git a/src/vnet/interface_output.h b/src/vnet/interface_output.h index 6b766d36c4f..bfd2066c2a8 100644 --- a/src/vnet/interface_output.h +++ b/src/vnet/interface_output.h @@ -87,6 +87,9 @@ vnet_calc_checksums_inline (vlib_main_t * vm, vlib_buffer_t * b, udp_header_t *uh; u32 oflags = vnet_buffer2 (b)->oflags; + if (!(b->flags & VNET_BUFFER_F_OFFLOAD)) + return; + ASSERT (!(is_ip4 && is_ip6)); ip4 = (ip4_header_t *) (b->data + vnet_buffer (b)->l3_hdr_offset); -- 2.16.6