diff options
Diffstat (limited to 'src/vnet/interface_output.h')
| -rw-r--r-- | src/vnet/interface_output.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/vnet/interface_output.h b/src/vnet/interface_output.h index 15b0a1d3ccc..786b0ff8e21 100644 --- a/src/vnet/interface_output.h +++ b/src/vnet/interface_output.h @@ -114,6 +114,36 @@ vnet_calc_checksums_inline (vlib_main_t * vm, vlib_buffer_t * b, VNET_BUFFER_OFFLOAD_F_TCP_CKSUM)); } +static_always_inline void +vnet_calc_outer_checksums_inline (vlib_main_t *vm, vlib_buffer_t *b) +{ + + if (!(b->flags & VNET_BUFFER_F_OFFLOAD)) + return; + + vnet_buffer_oflags_t oflags = vnet_buffer (b)->oflags; + if (oflags & VNET_BUFFER_OFFLOAD_F_OUTER_IP_CKSUM) + { + ip4_header_t *ip4; + ip4 = (ip4_header_t *) (b->data + vnet_buffer2 (b)->outer_l3_hdr_offset); + ip4->checksum = ip4_header_checksum (ip4); + vnet_buffer_offload_flags_clear (b, + VNET_BUFFER_OFFLOAD_F_OUTER_IP_CKSUM); + } + else if (oflags & VNET_BUFFER_OFFLOAD_F_OUTER_UDP_CKSUM) + { + int bogus; + ip6_header_t *ip6; + udp_header_t *uh; + + ip6 = (ip6_header_t *) (b->data + vnet_buffer2 (b)->outer_l3_hdr_offset); + uh = (udp_header_t *) (b->data + vnet_buffer2 (b)->outer_l4_hdr_offset); + uh->checksum = 0; + uh->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ip6, &bogus); + vnet_buffer_offload_flags_clear (b, + VNET_BUFFER_OFFLOAD_F_OUTER_UDP_CKSUM); + } +} #endif /* |