diff options
Diffstat (limited to 'hw/net/vmxnet_tx_pkt.c')
| -rw-r--r-- | hw/net/vmxnet_tx_pkt.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/hw/net/vmxnet_tx_pkt.c b/hw/net/vmxnet_tx_pkt.c index f7344c4cb3..eb88ddf254 100644 --- a/hw/net/vmxnet_tx_pkt.c +++ b/hw/net/vmxnet_tx_pkt.c @@ -142,11 +142,24 @@ static bool vmxnet_tx_pkt_parse_headers(struct VmxnetTxPkt *pkt) bytes_read = iov_to_buf(pkt->raw, pkt->raw_frags, 0, l2_hdr->iov_base, ETH_MAX_L2_HDR_LEN); - if (bytes_read < ETH_MAX_L2_HDR_LEN) { + if (bytes_read < sizeof(struct eth_header)) { + l2_hdr->iov_len = 0; + return false; + } + + l2_hdr->iov_len = sizeof(struct eth_header); + switch (be16_to_cpu(PKT_GET_ETH_HDR(l2_hdr->iov_base)->h_proto)) { + case ETH_P_VLAN: + l2_hdr->iov_len += sizeof(struct vlan_header); + break; + case ETH_P_DVLAN: + l2_hdr->iov_len += 2 * sizeof(struct vlan_header); + break; + } + + if (bytes_read < l2_hdr->iov_len) { l2_hdr->iov_len = 0; return false; - } else { - l2_hdr->iov_len = eth_get_l2_hdr_length(l2_hdr->iov_base); } l3_proto = eth_get_l3_proto(l2_hdr->iov_base, l2_hdr->iov_len); |