mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 12:49:08 +07:00
0c3b34d804
As of now, there're two sk_family are traced with sock:inet_sock_set_state, which are AF_INET and AF_INET6. So the sk_family are exposed as well. Then we can conveniently use it to do the filter. Both sk_family and sk_protocol are showed in the printk message, so we need not expose them as tracepoint arguments. Suggested-by: Brendan Gregg <brendan.d.gregg@gmail.com> Suggested-by: Song Liu <songliubraving@fb.com> Signed-off-by: Yafang Shao <laoar.shao@gmail.com> Reviewed-by: Song Liu <songliubraving@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
187 lines
4.4 KiB
C
187 lines
4.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM sock
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#if !defined(_TRACE_SOCK_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_SOCK_H
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#include <net/sock.h>
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#include <net/ipv6.h>
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#include <linux/tracepoint.h>
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#include <linux/ipv6.h>
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#include <linux/tcp.h>
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#define family_names \
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EM(AF_INET) \
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EMe(AF_INET6)
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/* The protocol traced by inet_sock_set_state */
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#define inet_protocol_names \
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EM(IPPROTO_TCP) \
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EM(IPPROTO_DCCP) \
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EMe(IPPROTO_SCTP)
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#define tcp_state_names \
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EM(TCP_ESTABLISHED) \
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EM(TCP_SYN_SENT) \
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EM(TCP_SYN_RECV) \
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EM(TCP_FIN_WAIT1) \
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EM(TCP_FIN_WAIT2) \
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EM(TCP_TIME_WAIT) \
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EM(TCP_CLOSE) \
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EM(TCP_CLOSE_WAIT) \
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EM(TCP_LAST_ACK) \
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EM(TCP_LISTEN) \
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EM(TCP_CLOSING) \
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EMe(TCP_NEW_SYN_RECV)
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/* enums need to be exported to user space */
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#undef EM
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#undef EMe
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#define EM(a) TRACE_DEFINE_ENUM(a);
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#define EMe(a) TRACE_DEFINE_ENUM(a);
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family_names
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inet_protocol_names
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tcp_state_names
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#undef EM
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#undef EMe
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#define EM(a) { a, #a },
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#define EMe(a) { a, #a }
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#define show_family_name(val) \
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__print_symbolic(val, family_names)
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#define show_inet_protocol_name(val) \
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__print_symbolic(val, inet_protocol_names)
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#define show_tcp_state_name(val) \
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__print_symbolic(val, tcp_state_names)
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TRACE_EVENT(sock_rcvqueue_full,
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TP_PROTO(struct sock *sk, struct sk_buff *skb),
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TP_ARGS(sk, skb),
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TP_STRUCT__entry(
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__field(int, rmem_alloc)
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__field(unsigned int, truesize)
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__field(int, sk_rcvbuf)
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),
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TP_fast_assign(
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__entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
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__entry->truesize = skb->truesize;
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__entry->sk_rcvbuf = sk->sk_rcvbuf;
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),
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TP_printk("rmem_alloc=%d truesize=%u sk_rcvbuf=%d",
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__entry->rmem_alloc, __entry->truesize, __entry->sk_rcvbuf)
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);
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TRACE_EVENT(sock_exceed_buf_limit,
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TP_PROTO(struct sock *sk, struct proto *prot, long allocated),
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TP_ARGS(sk, prot, allocated),
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TP_STRUCT__entry(
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__array(char, name, 32)
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__field(long *, sysctl_mem)
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__field(long, allocated)
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__field(int, sysctl_rmem)
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__field(int, rmem_alloc)
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),
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TP_fast_assign(
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strncpy(__entry->name, prot->name, 32);
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__entry->sysctl_mem = prot->sysctl_mem;
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__entry->allocated = allocated;
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__entry->sysctl_rmem = sk_get_rmem0(sk, prot);
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__entry->rmem_alloc = atomic_read(&sk->sk_rmem_alloc);
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),
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TP_printk("proto:%s sysctl_mem=%ld,%ld,%ld allocated=%ld "
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"sysctl_rmem=%d rmem_alloc=%d",
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__entry->name,
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__entry->sysctl_mem[0],
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__entry->sysctl_mem[1],
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__entry->sysctl_mem[2],
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__entry->allocated,
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__entry->sysctl_rmem,
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__entry->rmem_alloc)
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);
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TRACE_EVENT(inet_sock_set_state,
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TP_PROTO(const struct sock *sk, const int oldstate, const int newstate),
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TP_ARGS(sk, oldstate, newstate),
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TP_STRUCT__entry(
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__field(const void *, skaddr)
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__field(int, oldstate)
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__field(int, newstate)
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__field(__u16, sport)
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__field(__u16, dport)
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__field(__u16, family)
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__field(__u8, protocol)
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__array(__u8, saddr, 4)
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__array(__u8, daddr, 4)
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__array(__u8, saddr_v6, 16)
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__array(__u8, daddr_v6, 16)
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),
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TP_fast_assign(
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struct inet_sock *inet = inet_sk(sk);
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struct in6_addr *pin6;
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__be32 *p32;
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__entry->skaddr = sk;
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__entry->oldstate = oldstate;
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__entry->newstate = newstate;
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__entry->family = sk->sk_family;
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__entry->protocol = sk->sk_protocol;
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__entry->sport = ntohs(inet->inet_sport);
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__entry->dport = ntohs(inet->inet_dport);
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p32 = (__be32 *) __entry->saddr;
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*p32 = inet->inet_saddr;
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p32 = (__be32 *) __entry->daddr;
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*p32 = inet->inet_daddr;
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#if IS_ENABLED(CONFIG_IPV6)
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if (sk->sk_family == AF_INET6) {
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pin6 = (struct in6_addr *)__entry->saddr_v6;
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*pin6 = sk->sk_v6_rcv_saddr;
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pin6 = (struct in6_addr *)__entry->daddr_v6;
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*pin6 = sk->sk_v6_daddr;
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} else
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#endif
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{
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pin6 = (struct in6_addr *)__entry->saddr_v6;
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ipv6_addr_set_v4mapped(inet->inet_saddr, pin6);
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pin6 = (struct in6_addr *)__entry->daddr_v6;
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ipv6_addr_set_v4mapped(inet->inet_daddr, pin6);
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}
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),
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TP_printk("family=%s protocol=%s sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c oldstate=%s newstate=%s",
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show_family_name(__entry->family),
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show_inet_protocol_name(__entry->protocol),
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__entry->sport, __entry->dport,
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__entry->saddr, __entry->daddr,
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__entry->saddr_v6, __entry->daddr_v6,
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show_tcp_state_name(__entry->oldstate),
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show_tcp_state_name(__entry->newstate))
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);
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#endif /* _TRACE_SOCK_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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