1#ifndef _NFNETLINK_QUEUE_H 2#define _NFNETLINK_QUEUE_H 3 4#include <linux/types.h> 5#include <linux/netfilter/nfnetlink.h> 6 7enum nfqnl_msg_types { 8 NFQNL_MSG_PACKET, /* packet from kernel to userspace */ 9 NFQNL_MSG_VERDICT, /* verdict from userspace to kernel */ 10 NFQNL_MSG_CONFIG, /* connect to a particular queue */ 11 NFQNL_MSG_VERDICT_BATCH, /* batchv from userspace to kernel */ 12 13 NFQNL_MSG_MAX 14}; 15 16struct nfqnl_msg_packet_hdr { 17 __be32 packet_id; /* unique ID of packet in queue */ 18 __be16 hw_protocol; /* hw protocol (network order) */ 19 __u8 hook; /* netfilter hook */ 20} __attribute__ ((packed)); 21 22struct nfqnl_msg_packet_hw { 23 __be16 hw_addrlen; 24 __u16 _pad; 25 __u8 hw_addr[8]; 26}; 27 28struct nfqnl_msg_packet_timestamp { 29 __aligned_be64 sec; 30 __aligned_be64 usec; 31}; 32 33enum nfqnl_attr_type { 34 NFQA_UNSPEC, 35 NFQA_PACKET_HDR, 36 NFQA_VERDICT_HDR, /* nfqnl_msg_verdict_hrd */ 37 NFQA_MARK, /* __u32 nfmark */ 38 NFQA_TIMESTAMP, /* nfqnl_msg_packet_timestamp */ 39 NFQA_IFINDEX_INDEV, /* __u32 ifindex */ 40 NFQA_IFINDEX_OUTDEV, /* __u32 ifindex */ 41 NFQA_IFINDEX_PHYSINDEV, /* __u32 ifindex */ 42 NFQA_IFINDEX_PHYSOUTDEV, /* __u32 ifindex */ 43 NFQA_HWADDR, /* nfqnl_msg_packet_hw */ 44 NFQA_PAYLOAD, /* opaque data payload */ 45 NFQA_CT, /* nf_conntrack_netlink.h */ 46 NFQA_CT_INFO, /* enum ip_conntrack_info */ 47 NFQA_CAP_LEN, /* __u32 length of captured packet */ 48 NFQA_SKB_INFO, /* __u32 skb meta information */ 49 NFQA_EXP, /* nf_conntrack_netlink.h */ 50 NFQA_UID, /* __u32 sk uid */ 51 NFQA_GID, /* __u32 sk gid */ 52 53 __NFQA_MAX 54}; 55#define NFQA_MAX (__NFQA_MAX - 1) 56 57struct nfqnl_msg_verdict_hdr { 58 __be32 verdict; 59 __be32 id; 60}; 61 62 63enum nfqnl_msg_config_cmds { 64 NFQNL_CFG_CMD_NONE, 65 NFQNL_CFG_CMD_BIND, 66 NFQNL_CFG_CMD_UNBIND, 67 NFQNL_CFG_CMD_PF_BIND, 68 NFQNL_CFG_CMD_PF_UNBIND, 69}; 70 71struct nfqnl_msg_config_cmd { 72 __u8 command; /* nfqnl_msg_config_cmds */ 73 __u8 _pad; 74 __be16 pf; /* AF_xxx for PF_[UN]BIND */ 75}; 76 77enum nfqnl_config_mode { 78 NFQNL_COPY_NONE, 79 NFQNL_COPY_META, 80 NFQNL_COPY_PACKET, 81}; 82 83struct nfqnl_msg_config_params { 84 __be32 copy_range; 85 __u8 copy_mode; /* enum nfqnl_config_mode */ 86} __attribute__ ((packed)); 87 88 89enum nfqnl_attr_config { 90 NFQA_CFG_UNSPEC, 91 NFQA_CFG_CMD, /* nfqnl_msg_config_cmd */ 92 NFQA_CFG_PARAMS, /* nfqnl_msg_config_params */ 93 NFQA_CFG_QUEUE_MAXLEN, /* __u32 */ 94 NFQA_CFG_MASK, /* identify which flags to change */ 95 NFQA_CFG_FLAGS, /* value of these flags (__u32) */ 96 __NFQA_CFG_MAX 97}; 98#define NFQA_CFG_MAX (__NFQA_CFG_MAX-1) 99 100/* Flags for NFQA_CFG_FLAGS */ 101#define NFQA_CFG_F_FAIL_OPEN (1 << 0) 102#define NFQA_CFG_F_CONNTRACK (1 << 1) 103#define NFQA_CFG_F_GSO (1 << 2) 104#define NFQA_CFG_F_UID_GID (1 << 3) 105#define NFQA_CFG_F_MAX (1 << 4) 106 107/* flags for NFQA_SKB_INFO */ 108/* packet appears to have wrong checksums, but they are ok */ 109#define NFQA_SKB_CSUMNOTREADY (1 << 0) 110/* packet is GSO (i.e., exceeds device mtu) */ 111#define NFQA_SKB_GSO (1 << 1) 112/* csum not validated (incoming device doesn't support hw checksum, etc.) */ 113#define NFQA_SKB_CSUM_NOTVERIFIED (1 << 2) 114 115#endif /* _NFNETLINK_QUEUE_H */ 116