diff options
| author | Stefan Sørensen <stefan.sorensen@spectralink.com> | 2014-06-27 11:59:10 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-07 16:57:18 -0700 |
| commit | ae5c6c6d7bcadfbedefb5fc8ff0ebe2bfa83a0a1 (patch) | |
| tree | d1071ae8d47415a2575f689e54e35119f541befd /drivers/net/phy/dp83640.c | |
| parent | b9c701edc7ff6ddd522497b0194b0bc3ec1b51a9 (diff) | |
ptp: Classify ptp over ip over vlan packets
This extends the ptp bpf to also match ptp over ip over vlan packets. The ptp
classes are changed to orthogonal bitfields representing version, transport
and vlan values to simplify matching.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/dp83640.c')
| -rw-r--r-- | drivers/net/phy/dp83640.c | 46 |
1 files changed, 21 insertions, 25 deletions
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index 293ad064905d..53bd1af68422 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -856,20 +856,18 @@ static int is_sync(struct sk_buff *skb, int type) u8 *data = skb->data, *msgtype; unsigned int offset = 0; - switch (type) { - case PTP_CLASS_V1_IPV4: - case PTP_CLASS_V2_IPV4: - offset = ETH_HLEN + IPV4_HLEN(data) + UDP_HLEN; - break; - case PTP_CLASS_V1_IPV6: - case PTP_CLASS_V2_IPV6: - offset = OFF_PTP6; + if (type & PTP_CLASS_VLAN) + offset += VLAN_HLEN; + + switch (type & PTP_CLASS_PMASK) { + case PTP_CLASS_IPV4: + offset += ETH_HLEN + IPV4_HLEN(data) + UDP_HLEN; break; - case PTP_CLASS_V2_L2: - offset = ETH_HLEN; + case PTP_CLASS_IPV6: + offset += ETH_HLEN + IP6_HLEN + UDP_HLEN; break; - case PTP_CLASS_V2_VLAN: - offset = ETH_HLEN + VLAN_HLEN; + case PTP_CLASS_L2: + offset += ETH_HLEN; break; default: return 0; @@ -889,25 +887,23 @@ static int is_sync(struct sk_buff *skb, int type) static int match(struct sk_buff *skb, unsigned int type, struct rxts *rxts) { u16 *seqid; - unsigned int offset; + unsigned int offset = 0; u8 *msgtype, *data = skb_mac_header(skb); /* check sequenceID, messageType, 12 bit hash of offset 20-29 */ - switch (type) { - case PTP_CLASS_V1_IPV4: - case PTP_CLASS_V2_IPV4: - offset = ETH_HLEN + IPV4_HLEN(data) + UDP_HLEN; - break; - case PTP_CLASS_V1_IPV6: - case PTP_CLASS_V2_IPV6: - offset = OFF_PTP6; + if (type & PTP_CLASS_VLAN) + offset += VLAN_HLEN; + + switch (type & PTP_CLASS_PMASK) { + case PTP_CLASS_IPV4: + offset += ETH_HLEN + IPV4_HLEN(data) + UDP_HLEN; break; - case PTP_CLASS_V2_L2: - offset = ETH_HLEN; + case PTP_CLASS_IPV6: + offset += ETH_HLEN + IP6_HLEN + UDP_HLEN; break; - case PTP_CLASS_V2_VLAN: - offset = ETH_HLEN + VLAN_HLEN; + case PTP_CLASS_L2: + offset += ETH_HLEN; break; default: return 0; |