selftests: bpf: centre kernel bpf objects under new subdir "progs"

At the moment, all kernel bpf objects are listed under BPF_OBJ_FILES.
Listing them manually sometimes causing patch conflict when people are
adding new testcases simultaneously.

It is better to centre all the related source files under a subdir
"progs", then auto-generate the object file list.

Suggested-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

1 files changed, 0 insertions, 258 deletions

diff --git a/tools/testing/selftests/bpf/test_tcp_estats.c b/tools/testing/selftests/bpf/test_tcp_estats.c
deleted file mode 100644
index bee3bbecc0c4..000000000000
--- a/tools/testing/selftests/bpf/test_tcp_estats.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/* Copyright (c) 2017 Facebook
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- */
-
-/* This program shows clang/llvm is able to generate code pattern
- * like:
- *   _tcp_send_active_reset:
- *      0:       bf 16 00 00 00 00 00 00         r6 = r1
- *    ......
- *    335:       b7 01 00 00 0f 00 00 00         r1 = 15
- *    336:       05 00 48 00 00 00 00 00         goto 72
- *
- *   LBB0_3:
- *    337:       b7 01 00 00 01 00 00 00         r1 = 1
- *    338:       63 1a d0 ff 00 00 00 00         *(u32 *)(r10 - 48) = r1
- *    408:       b7 01 00 00 03 00 00 00         r1 = 3
- *
- *   LBB0_4:
- *    409:       71 a2 fe ff 00 00 00 00         r2 = *(u8 *)(r10 - 2)
- *    410:       bf a7 00 00 00 00 00 00         r7 = r10
- *    411:       07 07 00 00 b8 ff ff ff         r7 += -72
- *    412:       bf 73 00 00 00 00 00 00         r3 = r7
- *    413:       0f 13 00 00 00 00 00 00         r3 += r1
- *    414:       73 23 2d 00 00 00 00 00         *(u8 *)(r3 + 45) = r2
- *
- * From the above code snippet, the code generated by the compiler
- * is reasonable. The "r1" is assigned to different values in basic
- * blocks "_tcp_send_active_reset" and "LBB0_3", and used in "LBB0_4".
- * The verifier should be able to handle such code patterns.
- */
-#include <string.h>
-#include <linux/bpf.h>
-#include <linux/ipv6.h>
-#include <linux/version.h>
-#include <sys/socket.h>
-#include "bpf_helpers.h"
-
-#define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;})
-#define TCP_ESTATS_MAGIC 0xBAADBEEF
-
-/* This test case needs "sock" and "pt_regs" data structure.
- * Recursively, "sock" needs "sock_common" and "inet_sock".
- * However, this is a unit test case only for
- * verifier purpose without bpf program execution.
- * We can safely mock much simpler data structures, basically
- * only taking the necessary fields from kernel headers.
- */
-typedef __u32 __bitwise __portpair;
-typedef __u64 __bitwise __addrpair;
-
-struct sock_common {
-	unsigned short		skc_family;
-	union {
-		__addrpair	skc_addrpair;
-		struct {
-			__be32	skc_daddr;
-			__be32	skc_rcv_saddr;
-		};
-	};
-	union {
-		__portpair	skc_portpair;
-		struct {
-			__be16	skc_dport;
-			__u16	skc_num;
-		};
-	};
-	struct in6_addr		skc_v6_daddr;
-	struct in6_addr		skc_v6_rcv_saddr;
-};
-
-struct sock {
-	struct sock_common	__sk_common;
-#define sk_family		__sk_common.skc_family
-#define sk_v6_daddr		__sk_common.skc_v6_daddr
-#define sk_v6_rcv_saddr		__sk_common.skc_v6_rcv_saddr
-};
-
-struct inet_sock {
-	struct sock		sk;
-#define inet_daddr		sk.__sk_common.skc_daddr
-#define inet_dport		sk.__sk_common.skc_dport
-	__be32			inet_saddr;
-	__be16			inet_sport;
-};
-
-struct pt_regs {
-	long di;
-};
-
-static inline struct inet_sock *inet_sk(const struct sock *sk)
-{
-	return (struct inet_sock *)sk;
-}
-
-/* Define various data structures for state recording.
- * Some fields are not used due to test simplification.
- */
-enum tcp_estats_addrtype {
-	TCP_ESTATS_ADDRTYPE_IPV4 = 1,
-	TCP_ESTATS_ADDRTYPE_IPV6 = 2
-};
-
-enum tcp_estats_event_type {
-	TCP_ESTATS_ESTABLISH,
-	TCP_ESTATS_PERIODIC,
-	TCP_ESTATS_TIMEOUT,
-	TCP_ESTATS_RETRANSMIT_TIMEOUT,
-	TCP_ESTATS_RETRANSMIT_OTHER,
-	TCP_ESTATS_SYN_RETRANSMIT,
-	TCP_ESTATS_SYNACK_RETRANSMIT,
-	TCP_ESTATS_TERM,
-	TCP_ESTATS_TX_RESET,
-	TCP_ESTATS_RX_RESET,
-	TCP_ESTATS_WRITE_TIMEOUT,
-	TCP_ESTATS_CONN_TIMEOUT,
-	TCP_ESTATS_ACK_LATENCY,
-	TCP_ESTATS_NEVENTS,
-};
-
-struct tcp_estats_event {
-	int pid;
-	int cpu;
-	unsigned long ts;
-	unsigned int magic;
-	enum tcp_estats_event_type event_type;
-};
-
-/* The below data structure is packed in order for
- * llvm compiler to generate expected code.
- */
-struct tcp_estats_conn_id {
-	unsigned int localaddressType;
-	struct {
-		unsigned char data[16];
-	} localaddress;
-	struct {
-		unsigned char data[16];
-	} remaddress;
-	unsigned short    localport;
-	unsigned short    remport;
-} __attribute__((__packed__));
-
-struct tcp_estats_basic_event {
-	struct tcp_estats_event event;
-	struct tcp_estats_conn_id conn_id;
-};
-
-struct bpf_map_def SEC("maps") ev_record_map = {
-	.type = BPF_MAP_TYPE_HASH,
-	.key_size = sizeof(__u32),
-	.value_size = sizeof(struct tcp_estats_basic_event),
-	.max_entries = 1024,
-};
-
-struct dummy_tracepoint_args {
-	unsigned long long pad;
-	struct sock *sock;
-};
-
-static __always_inline void tcp_estats_ev_init(struct tcp_estats_event *event,
-					       enum tcp_estats_event_type type)
-{
-	event->magic = TCP_ESTATS_MAGIC;
-	event->ts = bpf_ktime_get_ns();
-	event->event_type = type;
-}
-
-static __always_inline void unaligned_u32_set(unsigned char *to, __u8 *from)
-{
-	to[0] = _(from[0]);
-	to[1] = _(from[1]);
-	to[2] = _(from[2]);
-	to[3] = _(from[3]);
-}
-
-static __always_inline void conn_id_ipv4_init(struct tcp_estats_conn_id *conn_id,
-					      __be32 *saddr, __be32 *daddr)
-{
-	conn_id->localaddressType = TCP_ESTATS_ADDRTYPE_IPV4;
-
-	unaligned_u32_set(conn_id->localaddress.data, (__u8 *)saddr);
-	unaligned_u32_set(conn_id->remaddress.data, (__u8 *)daddr);
-}
-
-static __always_inline void conn_id_ipv6_init(struct tcp_estats_conn_id *conn_id,
-					      __be32 *saddr, __be32 *daddr)
-{
-	conn_id->localaddressType = TCP_ESTATS_ADDRTYPE_IPV6;
-
-	unaligned_u32_set(conn_id->localaddress.data, (__u8 *)saddr);
-	unaligned_u32_set(conn_id->localaddress.data + sizeof(__u32),
-			  (__u8 *)(saddr + 1));
-	unaligned_u32_set(conn_id->localaddress.data + sizeof(__u32) * 2,
-			  (__u8 *)(saddr + 2));
-	unaligned_u32_set(conn_id->localaddress.data + sizeof(__u32) * 3,
-			  (__u8 *)(saddr + 3));
-
-	unaligned_u32_set(conn_id->remaddress.data,
-			  (__u8 *)(daddr));
-	unaligned_u32_set(conn_id->remaddress.data + sizeof(__u32),
-			  (__u8 *)(daddr + 1));
-	unaligned_u32_set(conn_id->remaddress.data + sizeof(__u32) * 2,
-			  (__u8 *)(daddr + 2));
-	unaligned_u32_set(conn_id->remaddress.data + sizeof(__u32) * 3,
-			  (__u8 *)(daddr + 3));
-}
-
-static __always_inline void tcp_estats_conn_id_init(struct tcp_estats_conn_id *conn_id,
-						    struct sock *sk)
-{
-	conn_id->localport = _(inet_sk(sk)->inet_sport);
-	conn_id->remport = _(inet_sk(sk)->inet_dport);
-
-	if (_(sk->sk_family) == AF_INET6)
-		conn_id_ipv6_init(conn_id,
-				  sk->sk_v6_rcv_saddr.s6_addr32,
-				  sk->sk_v6_daddr.s6_addr32);
-	else
-		conn_id_ipv4_init(conn_id,
-				  &inet_sk(sk)->inet_saddr,
-				  &inet_sk(sk)->inet_daddr);
-}
-
-static __always_inline void tcp_estats_init(struct sock *sk,
-					    struct tcp_estats_event *event,
-					    struct tcp_estats_conn_id *conn_id,
-					    enum tcp_estats_event_type type)
-{
-	tcp_estats_ev_init(event, type);
-	tcp_estats_conn_id_init(conn_id, sk);
-}
-
-static __always_inline void send_basic_event(struct sock *sk,
-					     enum tcp_estats_event_type type)
-{
-	struct tcp_estats_basic_event ev;
-	__u32 key = bpf_get_prandom_u32();
-
-	memset(&ev, 0, sizeof(ev));
-	tcp_estats_init(sk, &ev.event, &ev.conn_id, type);
-	bpf_map_update_elem(&ev_record_map, &key, &ev, BPF_ANY);
-}
-
-SEC("dummy_tracepoint")
-int _dummy_tracepoint(struct dummy_tracepoint_args *arg)
-{
-	if (!arg->sock)
-		return 0;
-
-	send_basic_event(arg->sock, TCP_ESTATS_TX_RESET);
-	return 0;
-}
-
-char _license[] SEC("license") = "GPL";
-__u32 _version SEC("version") = 1; /* ignored by tracepoints, required by libbpf.a */