mirror of
https://github.com/xdp-project/bpf-examples.git
synced 2024-05-06 15:54:53 +00:00
3d6baf8905
In kernel selftest/bpf xdp synproxy has: [0] b6a3451e084 (selftests/bpf: Fix erroneous bitmask operation) sync the fix here. It addresses an issue when xdp synproxy need to handle SYNACK from backend server, see [1]. [0]: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=b6a3451e0847 [1]: https://lore.kernel.org/xdp-newbies/CAK3+h2z1r69Z5g+qTwCaJzgnD5sv93x67TLJ3gVQ70_nFE0AqQ@mail.gmail.com/T/#t Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
149 lines
2.8 KiB
C
149 lines
2.8 KiB
C
#ifndef __VMLINUX_NET_H__
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#define __VMLINUX_NET_H__
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typedef __u32 __wsum;
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typedef unsigned int sk_buff_data_t; // Assumes 64-bit. FIXME see below
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/*
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// BITS_PER_LONG can be wrong with -target bpf
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#if BITS_PER_LONG > 32
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#define NET_SKBUFF_DATA_USES_OFFSET 1
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#endif
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#ifdef NET_SKBUFF_DATA_USES_OFFSET
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typedef unsigned int sk_buff_data_t;
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#else
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typedef unsigned char *sk_buff_data_t;
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#endif
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*/
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struct sk_buff {
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union {
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struct {
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struct sk_buff *next;
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struct sk_buff *prev;
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union {
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struct net_device *dev;
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long unsigned int dev_scratch;
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};
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};
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struct rb_node rbnode;
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struct list_head list;
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};
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union {
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struct sock *sk;
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int ip_defrag_offset;
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};
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union {
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ktime_t tstamp;
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u64 skb_mstamp_ns;
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};
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char cb[48];
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union {
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struct {
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long unsigned int _skb_refdst;
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void (*destructor)(struct sk_buff *);
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};
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struct list_head tcp_tsorted_anchor;
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};
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long unsigned int _nfct;
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unsigned int len;
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unsigned int data_len;
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__u16 mac_len;
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__u16 hdr_len;
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__u16 queue_mapping;
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__u8 __cloned_offset[0];
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__u8 cloned: 1;
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__u8 nohdr: 1;
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__u8 fclone: 2;
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__u8 peeked: 1;
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__u8 head_frag: 1;
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__u8 pfmemalloc: 1;
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__u8 active_extensions;
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__u32 headers_start[0];
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__u8 __pkt_type_offset[0];
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__u8 pkt_type: 3;
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__u8 ignore_df: 1;
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__u8 nf_trace: 1;
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__u8 ip_summed: 2;
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__u8 ooo_okay: 1;
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__u8 l4_hash: 1;
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__u8 sw_hash: 1;
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__u8 wifi_acked_valid: 1;
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__u8 wifi_acked: 1;
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__u8 no_fcs: 1;
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__u8 encapsulation: 1;
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__u8 encap_hdr_csum: 1;
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__u8 csum_valid: 1;
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__u8 __pkt_vlan_present_offset[0];
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__u8 vlan_present: 1;
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__u8 csum_complete_sw: 1;
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__u8 csum_level: 2;
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__u8 csum_not_inet: 1;
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__u8 dst_pending_confirm: 1;
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__u8 ndisc_nodetype: 2;
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__u8 ipvs_property: 1;
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__u8 inner_protocol_type: 1;
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__u8 remcsum_offload: 1;
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__u8 offload_fwd_mark: 1;
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__u8 offload_l3_fwd_mark: 1;
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__u8 tc_skip_classify: 1;
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__u8 tc_at_ingress: 1;
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__u8 redirected: 1;
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__u8 from_ingress: 1;
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__u8 decrypted: 1;
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__u16 tc_index;
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union {
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__wsum csum;
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struct {
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__u16 csum_start;
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__u16 csum_offset;
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};
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};
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__u32 priority;
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int skb_iif;
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__u32 hash;
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__be16 vlan_proto;
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__u16 vlan_tci;
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union {
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unsigned int napi_id;
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unsigned int sender_cpu;
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};
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__u32 secmark;
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union {
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__u32 mark;
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__u32 reserved_tailroom;
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};
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union {
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__be16 inner_protocol;
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__u8 inner_ipproto;
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};
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__u16 inner_transport_header;
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__u16 inner_network_header;
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__u16 inner_mac_header;
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__be16 protocol;
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__u16 transport_header;
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__u16 network_header;
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__u16 mac_header;
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__u32 headers_end[0];
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sk_buff_data_t tail;
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sk_buff_data_t end;
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unsigned char *head;
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unsigned char *data;
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unsigned int truesize;
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refcount_t users;
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struct skb_ext *extensions;
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};
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struct nf_conn {
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unsigned long status;
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};
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enum ip_conntrack_status {
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/* Connection is confirmed: originating packet has left box */
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IPS_CONFIRMED_BIT = 3,
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IPS_CONFIRMED = (1 << IPS_CONFIRMED_BIT),
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};
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#endif /* __VMLINUX_NET_H__ */
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