175 lines
4.5 KiB
C
175 lines
4.5 KiB
C
/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
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#ifndef __BPF_TRACING_NET_H__
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#define __BPF_TRACING_NET_H__
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#include <vmlinux.h>
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#include <bpf/bpf_core_read.h>
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#define AF_INET 2
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#define AF_INET6 10
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#define SOL_SOCKET 1
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#define SO_REUSEADDR 2
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#define SO_SNDBUF 7
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#define SO_RCVBUF 8
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#define SO_KEEPALIVE 9
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#define SO_PRIORITY 12
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#define SO_REUSEPORT 15
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#define SO_RCVLOWAT 18
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#define SO_BINDTODEVICE 25
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#define SO_MARK 36
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#define SO_MAX_PACING_RATE 47
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#define SO_BINDTOIFINDEX 62
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#define SO_TXREHASH 74
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#define __SO_ACCEPTCON (1 << 16)
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#define IP_TOS 1
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#define SOL_IPV6 41
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#define IPV6_TCLASS 67
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#define IPV6_AUTOFLOWLABEL 70
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#define TC_ACT_UNSPEC (-1)
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#define TC_ACT_OK 0
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#define TC_ACT_SHOT 2
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#define SOL_TCP 6
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#define TCP_NODELAY 1
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#define TCP_MAXSEG 2
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#define TCP_KEEPIDLE 4
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#define TCP_KEEPINTVL 5
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#define TCP_KEEPCNT 6
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#define TCP_SYNCNT 7
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#define TCP_WINDOW_CLAMP 10
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#define TCP_CONGESTION 13
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#define TCP_THIN_LINEAR_TIMEOUTS 16
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#define TCP_USER_TIMEOUT 18
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#define TCP_NOTSENT_LOWAT 25
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#define TCP_SAVE_SYN 27
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#define TCP_SAVED_SYN 28
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#define TCP_CA_NAME_MAX 16
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#define TCP_NAGLE_OFF 1
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#define TCP_ECN_OK 1
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#define TCP_ECN_QUEUE_CWR 2
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#define TCP_ECN_DEMAND_CWR 4
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#define TCP_ECN_SEEN 8
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#define TCP_CONG_NEEDS_ECN 0x2
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#define ICSK_TIME_RETRANS 1
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#define ICSK_TIME_PROBE0 3
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#define ICSK_TIME_LOSS_PROBE 5
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#define ICSK_TIME_REO_TIMEOUT 6
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#define ETH_ALEN 6
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#define ETH_HLEN 14
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#define ETH_P_IP 0x0800
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#define ETH_P_IPV6 0x86DD
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#define NEXTHDR_TCP 6
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#define TCPOPT_NOP 1
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#define TCPOPT_EOL 0
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#define TCPOPT_MSS 2
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#define TCPOPT_WINDOW 3
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#define TCPOPT_TIMESTAMP 8
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#define TCPOPT_SACK_PERM 4
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#define TCPOLEN_MSS 4
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#define TCPOLEN_WINDOW 3
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#define TCPOLEN_TIMESTAMP 10
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#define TCPOLEN_SACK_PERM 2
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#define CHECKSUM_NONE 0
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#define CHECKSUM_PARTIAL 3
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#define IFNAMSIZ 16
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#define RTF_GATEWAY 0x0002
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#define TCP_INFINITE_SSTHRESH 0x7fffffff
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#define TCP_PINGPONG_THRESH 3
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#define FLAG_DATA_ACKED 0x04 /* This ACK acknowledged new data. */
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#define FLAG_SYN_ACKED 0x10 /* This ACK acknowledged SYN. */
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#define FLAG_DATA_SACKED 0x20 /* New SACK. */
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#define FLAG_SND_UNA_ADVANCED \
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0x400 /* Snd_una was changed (!= FLAG_DATA_ACKED) */
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#define FLAG_ACKED (FLAG_DATA_ACKED | FLAG_SYN_ACKED)
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#define FLAG_FORWARD_PROGRESS (FLAG_ACKED | FLAG_DATA_SACKED)
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#define fib_nh_dev nh_common.nhc_dev
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#define fib_nh_gw_family nh_common.nhc_gw_family
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#define fib_nh_gw6 nh_common.nhc_gw.ipv6
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#define inet_daddr sk.__sk_common.skc_daddr
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#define inet_rcv_saddr sk.__sk_common.skc_rcv_saddr
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#define inet_dport sk.__sk_common.skc_dport
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#define udp_portaddr_hash inet.sk.__sk_common.skc_u16hashes[1]
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#define ir_loc_addr req.__req_common.skc_rcv_saddr
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#define ir_num req.__req_common.skc_num
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#define ir_rmt_addr req.__req_common.skc_daddr
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#define ir_rmt_port req.__req_common.skc_dport
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#define ir_v6_rmt_addr req.__req_common.skc_v6_daddr
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#define ir_v6_loc_addr req.__req_common.skc_v6_rcv_saddr
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#define sk_num __sk_common.skc_num
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#define sk_dport __sk_common.skc_dport
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#define sk_family __sk_common.skc_family
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#define sk_rmem_alloc sk_backlog.rmem_alloc
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#define sk_refcnt __sk_common.skc_refcnt
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#define sk_state __sk_common.skc_state
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#define sk_net __sk_common.skc_net
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#define sk_v6_daddr __sk_common.skc_v6_daddr
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#define sk_v6_rcv_saddr __sk_common.skc_v6_rcv_saddr
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#define sk_flags __sk_common.skc_flags
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#define sk_reuse __sk_common.skc_reuse
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#define sk_cookie __sk_common.skc_cookie
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#define s6_addr32 in6_u.u6_addr32
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#define tw_daddr __tw_common.skc_daddr
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#define tw_rcv_saddr __tw_common.skc_rcv_saddr
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#define tw_dport __tw_common.skc_dport
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#define tw_refcnt __tw_common.skc_refcnt
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#define tw_v6_daddr __tw_common.skc_v6_daddr
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#define tw_v6_rcv_saddr __tw_common.skc_v6_rcv_saddr
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#define tcp_jiffies32 ((__u32)bpf_jiffies64())
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static inline struct inet_connection_sock *inet_csk(const struct sock *sk)
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{
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return (struct inet_connection_sock *)sk;
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}
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static inline void *inet_csk_ca(const struct sock *sk)
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{
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return (void *)inet_csk(sk)->icsk_ca_priv;
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}
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static inline struct tcp_sock *tcp_sk(const struct sock *sk)
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{
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return (struct tcp_sock *)sk;
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}
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static inline bool tcp_in_slow_start(const struct tcp_sock *tp)
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{
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return tp->snd_cwnd < tp->snd_ssthresh;
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}
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static inline bool tcp_is_cwnd_limited(const struct sock *sk)
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{
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const struct tcp_sock *tp = tcp_sk(sk);
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/* If in slow start, ensure cwnd grows to twice what was ACKed. */
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if (tcp_in_slow_start(tp))
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return tp->snd_cwnd < 2 * tp->max_packets_out;
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return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited);
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}
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#endif
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