diff options
| -rw-r--r-- | src/plugins/stn/stn.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/plugins/stn/stn.c b/src/plugins/stn/stn.c index a9e6a98ebed..b05883b239d 100644 --- a/src/plugins/stn/stn.c +++ b/src/plugins/stn/stn.c @@ -109,8 +109,20 @@ stn_punt_fn (vlib_main_t * vm, p0 = vlib_get_buffer (vm, pi0); +/* + * We are not guaranteed any particular layer here. + * So we need to reparse from the beginning of the packet. + * which may not start from zero with some DPDK drivers. + ip4_header_t *ip = vlib_buffer_get_current(p0); if ((ip->ip_version_and_header_length & 0xf0) == 0x40) +* +*/ + int ethernet_header_offset = 0; /* to be filled by DPDK */ + ethernet_header_t *eth = (ethernet_header_t *)(p0->data + ethernet_header_offset); + /* ensure the block current data starts at L3 boundary now for the subsequent nodes */ + vlib_buffer_advance(p0, ethernet_header_offset + sizeof(ethernet_header_t) - p0->current_data); + if (clib_net_to_host_u16(eth->type) == ETHERNET_TYPE_IP4) next0 = stn->punt_to_stn_ip4_next_index; else next0 = stn->punt_to_stn_ip6_next_index; |