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![Harald Welte](/assets/img/avatar_default.png)
As proposed by Andi Kleen, this is required esp. for x86_64 architecture, where 64bit code needs 8byte aligned 64bit data types, but 32bit userspace apps will only align to 4bytes. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
#ifndef _NFNETLINK_QUEUE_H
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#define _NFNETLINK_QUEUE_H
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#include <linux/types.h>
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#include <linux/netfilter/nfnetlink.h>
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enum nfqnl_msg_types {
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NFQNL_MSG_PACKET, /* packet from kernel to userspace */
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NFQNL_MSG_VERDICT, /* verdict from userspace to kernel */
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NFQNL_MSG_CONFIG, /* connect to a particular queue */
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NFQNL_MSG_MAX
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};
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struct nfqnl_msg_packet_hdr {
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u_int32_t packet_id; /* unique ID of packet in queue */
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u_int16_t hw_protocol; /* hw protocol (network order) */
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u_int8_t hook; /* netfilter hook */
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} __attribute__ ((packed));
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struct nfqnl_msg_packet_hw {
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u_int16_t hw_addrlen;
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u_int16_t _pad;
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u_int8_t hw_addr[8];
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} __attribute__ ((packed));
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struct nfqnl_msg_packet_timestamp {
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aligned_u64 sec;
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aligned_u64 usec;
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} __attribute__ ((packed));
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enum nfqnl_attr_type {
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NFQA_UNSPEC,
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NFQA_PACKET_HDR,
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NFQA_VERDICT_HDR, /* nfqnl_msg_verdict_hrd */
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NFQA_MARK, /* u_int32_t nfmark */
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NFQA_TIMESTAMP, /* nfqnl_msg_packet_timestamp */
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NFQA_IFINDEX_INDEV, /* u_int32_t ifindex */
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NFQA_IFINDEX_OUTDEV, /* u_int32_t ifindex */
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NFQA_IFINDEX_PHYSINDEV, /* u_int32_t ifindex */
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NFQA_IFINDEX_PHYSOUTDEV, /* u_int32_t ifindex */
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NFQA_HWADDR, /* nfqnl_msg_packet_hw */
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NFQA_PAYLOAD, /* opaque data payload */
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__NFQA_MAX
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};
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#define NFQA_MAX (__NFQA_MAX - 1)
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struct nfqnl_msg_verdict_hdr {
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u_int32_t verdict;
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u_int32_t id;
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} __attribute__ ((packed));
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enum nfqnl_msg_config_cmds {
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NFQNL_CFG_CMD_NONE,
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NFQNL_CFG_CMD_BIND,
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NFQNL_CFG_CMD_UNBIND,
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NFQNL_CFG_CMD_PF_BIND,
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NFQNL_CFG_CMD_PF_UNBIND,
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};
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struct nfqnl_msg_config_cmd {
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u_int8_t command; /* nfqnl_msg_config_cmds */
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u_int8_t _pad;
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u_int16_t pf; /* AF_xxx for PF_[UN]BIND */
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} __attribute__ ((packed));
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enum nfqnl_config_mode {
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NFQNL_COPY_NONE,
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NFQNL_COPY_META,
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NFQNL_COPY_PACKET,
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};
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struct nfqnl_msg_config_params {
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u_int32_t copy_range;
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u_int8_t copy_mode; /* enum nfqnl_config_mode */
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} __attribute__ ((packed));
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enum nfqnl_attr_config {
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NFQA_CFG_UNSPEC,
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NFQA_CFG_CMD, /* nfqnl_msg_config_cmd */
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NFQA_CFG_PARAMS, /* nfqnl_msg_config_params */
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__NFQA_CFG_MAX
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};
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#define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
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#endif /* _NFNETLINK_QUEUE_H */
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