[PATCH bpf-next] selftests/bpf: Fix error undeclared identifier 'NF_NAT_MANIP_SRC'

[Rong Tao <rtoax@xxxxxxxxxxx>]

From: Rong Tao <rongtao@xxxxxxxx>

commit 472caa69183f("netfilter: nat: un-export nf_nat_used_tuple")
introduce NF_NAT_MANIP_SRC/DST enum in include/net/netfilter/nf_nat.h,
and commit b06b45e82b59("selftests/bpf: add tests for bpf_ct_set_nat_info
kfunc") use NF_NAT_MANIP_SRC/DST in test_bpf_nf.c. We copy enum
nf_nat_manip_type to test_bpf_nf.c fix this error.

How to reproduce the error:

    $ make -C tools/testing/selftests/bpf/
    ...
      CLNG-BPF [test_maps] test_bpf_nf.bpf.o
      error: use of undeclared identifier 'NF_NAT_MANIP_SRC'
            bpf_ct_set_nat_info(ct, &saddr, sport, NF_NAT_MANIP_SRC);
                                                           ^
      error: use of undeclared identifier 'NF_NAT_MANIP_DST'
            bpf_ct_set_nat_info(ct, &daddr, dport, NF_NAT_MANIP_DST);
                                                           ^
    2 errors generated.

Link: https://lore.kernel.org/lkml/202210280447.STsT1gvq-lkp@xxxxxxxxx/
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Rong Tao <rongtao@xxxxxxxx>
---
 tools/testing/selftests/bpf/progs/test_bpf_nf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/bpf/progs/test_bpf_nf.c b/tools/testing/selftests/bpf/progs/test_bpf_nf.c
index 227e85e85dda..307ca166ff34 100644
--- a/tools/testing/selftests/bpf/progs/test_bpf_nf.c
+++ b/tools/testing/selftests/bpf/progs/test_bpf_nf.c
@@ -3,6 +3,11 @@
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_endian.h>
 
+enum nf_nat_manip_type {
+	NF_NAT_MANIP_SRC,
+	NF_NAT_MANIP_DST
+};
+
 #define EAFNOSUPPORT 97
 #define EPROTO 71
 #define ENONET 64
-- 
2.31.1