cregit-Linux how code gets into the kernel

Release 4.7 include/uapi/linux/netfilter/nfnetlink_queue.h

#ifndef _NFNETLINK_QUEUE_H

#define _NFNETLINK_QUEUE_H

#include <linux/types.h>
#include <linux/netfilter/nfnetlink.h>


enum nfqnl_msg_types {
	
NFQNL_MSG_PACKET,		/* packet from kernel to userspace */
	
NFQNL_MSG_VERDICT,		/* verdict from userspace to kernel */
	
NFQNL_MSG_CONFIG,		/* connect to a particular queue */
	
NFQNL_MSG_VERDICT_BATCH,	/* batchv from userspace to kernel */

	
NFQNL_MSG_MAX
};


struct nfqnl_msg_packet_hdr {
	
__be32		packet_id;	/* unique ID of packet in queue */
	
__be16		hw_protocol;	/* hw protocol (network order) */
	
__u8	hook;		/* netfilter hook */
} __attribute__ ((packed));


struct nfqnl_msg_packet_hw {
	
__be16		hw_addrlen;
	
__u16	_pad;
	
__u8	hw_addr[8];
};


struct nfqnl_msg_packet_timestamp {
	
__aligned_be64	sec;
	
__aligned_be64	usec;
};


enum nfqnl_vlan_attr {
	
NFQA_VLAN_UNSPEC,
	
NFQA_VLAN_PROTO,		/* __be16 skb vlan_proto */
	
NFQA_VLAN_TCI,			/* __be16 skb htons(vlan_tci) */
	
__NFQA_VLAN_MAX,
};

#define NFQA_VLAN_MAX (__NFQA_VLAN_MAX + 1)


enum nfqnl_attr_type {
	
NFQA_UNSPEC,
	
NFQA_PACKET_HDR,
	
NFQA_VERDICT_HDR,		/* nfqnl_msg_verdict_hrd */
	
NFQA_MARK,			/* __u32 nfmark */
	
NFQA_TIMESTAMP,			/* nfqnl_msg_packet_timestamp */
	
NFQA_IFINDEX_INDEV,		/* __u32 ifindex */
	
NFQA_IFINDEX_OUTDEV,		/* __u32 ifindex */
	
NFQA_IFINDEX_PHYSINDEV,		/* __u32 ifindex */
	
NFQA_IFINDEX_PHYSOUTDEV,	/* __u32 ifindex */
	
NFQA_HWADDR,			/* nfqnl_msg_packet_hw */
	
NFQA_PAYLOAD,			/* opaque data payload */
	
NFQA_CT,			/* nf_conntrack_netlink.h */
	
NFQA_CT_INFO,			/* enum ip_conntrack_info */
	
NFQA_CAP_LEN,			/* __u32 length of captured packet */
	
NFQA_SKB_INFO,			/* __u32 skb meta information */
	
NFQA_EXP,			/* nf_conntrack_netlink.h */
	
NFQA_UID,			/* __u32 sk uid */
	
NFQA_GID,			/* __u32 sk gid */
	
NFQA_SECCTX,			/* security context string */
	
NFQA_VLAN,			/* nested attribute: packet vlan info */
	
NFQA_L2HDR,			/* full L2 header */

	
__NFQA_MAX
};

#define NFQA_MAX (__NFQA_MAX - 1)


struct nfqnl_msg_verdict_hdr {
	
__be32 verdict;
	
__be32 id;
};



enum nfqnl_msg_config_cmds {
	
NFQNL_CFG_CMD_NONE,
	
NFQNL_CFG_CMD_BIND,
	
NFQNL_CFG_CMD_UNBIND,
	
NFQNL_CFG_CMD_PF_BIND,
	
NFQNL_CFG_CMD_PF_UNBIND,
};


struct nfqnl_msg_config_cmd {
	
__u8	command;	/* nfqnl_msg_config_cmds */
	
__u8	_pad;
	
__be16		pf;		/* AF_xxx for PF_[UN]BIND */
};


enum nfqnl_config_mode {
	
NFQNL_COPY_NONE,
	
NFQNL_COPY_META,
	
NFQNL_COPY_PACKET,
};


struct nfqnl_msg_config_params {
	
__be32		copy_range;
	
__u8	copy_mode;	/* enum nfqnl_config_mode */
} __attribute__ ((packed));



enum nfqnl_attr_config {
	
NFQA_CFG_UNSPEC,
	
NFQA_CFG_CMD,			/* nfqnl_msg_config_cmd */
	
NFQA_CFG_PARAMS,		/* nfqnl_msg_config_params */
	
NFQA_CFG_QUEUE_MAXLEN,		/* __u32 */
	
NFQA_CFG_MASK,			/* identify which flags to change */
	
NFQA_CFG_FLAGS,			/* value of these flags (__u32) */
	
__NFQA_CFG_MAX
};

#define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)

/* Flags for NFQA_CFG_FLAGS */

#define NFQA_CFG_F_FAIL_OPEN			(1 << 0)

#define NFQA_CFG_F_CONNTRACK			(1 << 1)

#define NFQA_CFG_F_GSO				(1 << 2)

#define NFQA_CFG_F_UID_GID			(1 << 3)

#define NFQA_CFG_F_SECCTX			(1 << 4)

#define NFQA_CFG_F_MAX				(1 << 5)

/* flags for NFQA_SKB_INFO */
/* packet appears to have wrong checksums, but they are ok */

#define NFQA_SKB_CSUMNOTREADY (1 << 0)
/* packet is GSO (i.e., exceeds device mtu) */

#define NFQA_SKB_GSO (1 << 1)
/* csum not validated (incoming device doesn't support hw checksum, etc.) */

#define NFQA_SKB_CSUM_NOTVERIFIED (1 << 2)

#endif /* _NFNETLINK_QUEUE_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
harald welteharald welte18960.97%420.00%
florian westphalflorian westphal268.39%420.00%
stephane bryantstephane bryant247.74%15.00%
pablo neira ayusopablo neira ayuso165.16%315.00%
krishna kumarkrishna kumar144.52%210.00%
arnd bergmannarnd bergmann123.87%15.00%
valentina giustivalentina giusti103.23%15.00%
roman kubiakroman kubiak82.58%15.00%
al viroal viro72.26%15.00%
eric leblonderic leblond20.65%15.00%
mike frysingermike frysinger20.65%15.00%
Total310100.00%20100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
{% endraw %}