diff options
| author | Patrick McHardy <kaber@trash.net> | 2008-07-14 22:50:39 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-14 22:50:39 -0700 |
| commit | 393e52e33c6c26ec7db290dab803bac1bed962d4 (patch) | |
| tree | 54e93a35c98b994556724ad96a90871bfc38b3b4 | |
| parent | bbd6ef87c544d88c30e4b762b1b61ef267a7d279 (diff) | |
packet: deliver VLAN TCI to userspace
Store the VLAN tag in the auxillary data/tpacket2_hdr so userspace can
properly deal with hardware VLAN tagging/stripping.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/if_packet.h | 2 | ||||
| -rw-r--r-- | net/packet/af_packet.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/if_packet.h b/include/linux/if_packet.h index d4d3c82448f..a630295b255 100644 --- a/include/linux/if_packet.h +++ b/include/linux/if_packet.h @@ -59,6 +59,7 @@ struct tpacket_auxdata __u32 tp_snaplen; __u16 tp_mac; __u16 tp_net; + __u16 tp_vlan_tci; }; struct tpacket_hdr @@ -90,6 +91,7 @@ struct tpacket2_hdr __u16 tp_net; __u32 tp_sec; __u32 tp_nsec; + __u16 tp_vlan_tci; }; #define TPACKET2_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + sizeof(struct sockaddr_ll)) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 4f059775d48..db792e02a37 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -702,6 +702,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe getnstimeofday(&ts); h.h2->tp_sec = ts.tv_sec; h.h2->tp_nsec = ts.tv_nsec; + h.h2->tp_vlan_tci = skb->vlan_tci; hdrlen = sizeof(*h.h2); break; default: @@ -1172,6 +1173,7 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, aux.tp_snaplen = skb->len; aux.tp_mac = 0; aux.tp_net = skb_network_offset(skb); + aux.tp_vlan_tci = skb->vlan_tci; put_cmsg(msg, SOL_PACKET, PACKET_AUXDATA, sizeof(aux), &aux); } |