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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 11:47:58 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 11:47:58 -0700 |
commit | 6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7 (patch) | |
tree | 8f3892fc44f1e403675a6d7e88fda5c70e56ee4c /include/linux/ptp_classify.h | |
parent | 5abd9ccced7a726c817dd6b5b96bc933859138d1 (diff) | |
parent | 3ff1c25927e3af61c6bf0e4ed959504058ae4565 (diff) | |
download | linux-6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7.tar.gz linux-6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7.tar.bz2 linux-6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits)
phy/marvell: add 88ec048 support
igb: Program MDICNFG register prior to PHY init
e1000e: correct MAC-PHY interconnect register offset for 82579
hso: Add new product ID
can: Add driver for esd CAN-USB/2 device
l2tp: fix export of header file for userspace
can-raw: Fix skb_orphan_try handling
Revert "net: remove zap_completion_queue"
net: cleanup inclusion
phy/marvell: add 88e1121 interface mode support
u32: negative offset fix
net: Fix a typo from "dev" to "ndev"
igb: Use irq_synchronize per vector when using MSI-X
ixgbevf: fix null pointer dereference due to filter being set for VLAN 0
e1000e: Fix irq_synchronize in MSI-X case
e1000e: register pm_qos request on hardware activation
ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice
net: Add getsockopt support for TCP thin-streams
cxgb4: update driver version
cxgb4: add new PCI IDs
...
Manually fix up conflicts in:
- drivers/net/e1000e/netdev.c: due to pm_qos registration
infrastructure changes
- drivers/net/phy/marvell.c: conflict between adding 88ec048 support
and cleaning up the IDs
- drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req
conflict (registration change vs marking it static)
Diffstat (limited to 'include/linux/ptp_classify.h')
-rw-r--r-- | include/linux/ptp_classify.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/include/linux/ptp_classify.h b/include/linux/ptp_classify.h new file mode 100644 index 000000000000..943a85ab0020 --- /dev/null +++ b/include/linux/ptp_classify.h @@ -0,0 +1,126 @@ +/* + * PTP 1588 support + * + * This file implements a BPF that recognizes PTP event messages. + * + * Copyright (C) 2010 OMICRON electronics GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _PTP_CLASSIFY_H_ +#define _PTP_CLASSIFY_H_ + +#include <linux/if_ether.h> +#include <linux/if_vlan.h> +#include <linux/filter.h> +#ifdef __KERNEL__ +#include <linux/in.h> +#else +#include <netinet/in.h> +#endif + +#define PTP_CLASS_NONE 0x00 /* not a PTP event message */ +#define PTP_CLASS_V1 0x01 /* protocol version 1 */ +#define PTP_CLASS_V2 0x02 /* protocol version 2 */ +#define PTP_CLASS_VMASK 0x0f /* max protocol version is 15 */ +#define PTP_CLASS_IPV4 0x10 /* event in an IPV4 UDP packet */ +#define PTP_CLASS_IPV6 0x20 /* event in an IPV6 UDP packet */ +#define PTP_CLASS_L2 0x30 /* event in a L2 packet */ +#define PTP_CLASS_VLAN 0x40 /* event in a VLAN tagged L2 packet */ +#define PTP_CLASS_PMASK 0xf0 /* mask for the packet type field */ + +#define PTP_CLASS_V1_IPV4 (PTP_CLASS_V1 | PTP_CLASS_IPV4) +#define PTP_CLASS_V1_IPV6 (PTP_CLASS_V1 | PTP_CLASS_IPV6) /*probably DNE*/ +#define PTP_CLASS_V2_IPV4 (PTP_CLASS_V2 | PTP_CLASS_IPV4) +#define PTP_CLASS_V2_IPV6 (PTP_CLASS_V2 | PTP_CLASS_IPV6) +#define PTP_CLASS_V2_L2 (PTP_CLASS_V2 | PTP_CLASS_L2) +#define PTP_CLASS_V2_VLAN (PTP_CLASS_V2 | PTP_CLASS_VLAN) + +#define PTP_EV_PORT 319 + +#define OFF_ETYPE 12 +#define OFF_IHL 14 +#define OFF_FRAG 20 +#define OFF_PROTO4 23 +#define OFF_NEXT 6 +#define OFF_UDP_DST 2 + +#define IP6_HLEN 40 +#define UDP_HLEN 8 + +#define RELOFF_DST4 (ETH_HLEN + OFF_UDP_DST) +#define OFF_DST6 (ETH_HLEN + IP6_HLEN + OFF_UDP_DST) +#define OFF_PTP6 (ETH_HLEN + IP6_HLEN + UDP_HLEN) + +#define OP_AND (BPF_ALU | BPF_AND | BPF_K) +#define OP_JEQ (BPF_JMP | BPF_JEQ | BPF_K) +#define OP_JSET (BPF_JMP | BPF_JSET | BPF_K) +#define OP_LDB (BPF_LD | BPF_B | BPF_ABS) +#define OP_LDH (BPF_LD | BPF_H | BPF_ABS) +#define OP_LDHI (BPF_LD | BPF_H | BPF_IND) +#define OP_LDX (BPF_LDX | BPF_B | BPF_MSH) +#define OP_OR (BPF_ALU | BPF_OR | BPF_K) +#define OP_RETA (BPF_RET | BPF_A) +#define OP_RETK (BPF_RET | BPF_K) + +static inline int ptp_filter_init(struct sock_filter *f, int len) +{ + if (OP_LDH == f[0].code) + return sk_chk_filter(f, len); + else + return 0; +} + +#define PTP_FILTER \ + {OP_LDH, 0, 0, OFF_ETYPE }, /* */ \ + {OP_JEQ, 0, 12, ETH_P_IP }, /* f goto L20 */ \ + {OP_LDB, 0, 0, OFF_PROTO4 }, /* */ \ + {OP_JEQ, 0, 9, IPPROTO_UDP }, /* f goto L10 */ \ + {OP_LDH, 0, 0, OFF_FRAG }, /* */ \ + {OP_JSET, 7, 0, 0x1fff }, /* t goto L11 */ \ + {OP_LDX, 0, 0, OFF_IHL }, /* */ \ + {OP_LDHI, 0, 0, RELOFF_DST4 }, /* */ \ + {OP_JEQ, 0, 4, PTP_EV_PORT }, /* f goto L12 */ \ + {OP_LDHI, 0, 0, ETH_HLEN + UDP_HLEN }, /* */ \ + {OP_AND, 0, 0, PTP_CLASS_VMASK }, /* */ \ + {OP_OR, 0, 0, PTP_CLASS_IPV4 }, /* */ \ + {OP_RETA, 0, 0, 0 }, /* */ \ +/*L1x*/ {OP_RETK, 0, 0, PTP_CLASS_NONE }, /* */ \ +/*L20*/ {OP_JEQ, 0, 9, ETH_P_IPV6 }, /* f goto L40 */ \ + {OP_LDB, 0, 0, ETH_HLEN + OFF_NEXT }, /* */ \ + {OP_JEQ, 0, 6, IPPROTO_UDP }, /* f goto L30 */ \ + {OP_LDH, 0, 0, OFF_DST6 }, /* */ \ + {OP_JEQ, 0, 4, PTP_EV_PORT }, /* f goto L31 */ \ + {OP_LDH, 0, 0, OFF_PTP6 }, /* */ \ + {OP_AND, 0, 0, PTP_CLASS_VMASK }, /* */ \ + {OP_OR, 0, 0, PTP_CLASS_IPV6 }, /* */ \ + {OP_RETA, 0, 0, 0 }, /* */ \ +/*L3x*/ {OP_RETK, 0, 0, PTP_CLASS_NONE }, /* */ \ +/*L40*/ {OP_JEQ, 0, 6, ETH_P_8021Q }, /* f goto L50 */ \ + {OP_LDH, 0, 0, OFF_ETYPE + 4 }, /* */ \ + {OP_JEQ, 0, 9, ETH_P_1588 }, /* f goto L60 */ \ + {OP_LDH, 0, 0, ETH_HLEN + VLAN_HLEN }, /* */ \ + {OP_AND, 0, 0, PTP_CLASS_VMASK }, /* */ \ + {OP_OR, 0, 0, PTP_CLASS_VLAN }, /* */ \ + {OP_RETA, 0, 0, 0 }, /* */ \ +/*L50*/ {OP_JEQ, 0, 4, ETH_P_1588 }, /* f goto L61 */ \ + {OP_LDH, 0, 0, ETH_HLEN }, /* */ \ + {OP_AND, 0, 0, PTP_CLASS_VMASK }, /* */ \ + {OP_OR, 0, 0, PTP_CLASS_L2 }, /* */ \ + {OP_RETA, 0, 0, 0 }, /* */ \ +/*L6x*/ {OP_RETK, 0, 0, PTP_CLASS_NONE }, + +#endif |