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author | Martin KaFai Lau <kafai@fb.com> | 2017-06-27 23:08:35 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2017-06-29 13:13:26 -0400 |
commit | a8744f2528c14e4545c6071b6681ab17607be2fa (patch) | |
tree | 7e7b11a58be303f42072fd51c260354cf110b5e2 /samples/bpf/test_map_in_map_user.c | |
parent | 14dc6f04f49dc12614d7e90928b495b8d73cd471 (diff) | |
download | talos-op-linux-a8744f2528c14e4545c6071b6681ab17607be2fa.tar.gz talos-op-linux-a8744f2528c14e4545c6071b6681ab17607be2fa.zip |
bpf: Add test for syscall on fd array/htab lookup
Checks are added to the existing sockex3 and test_map_in_map test.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/bpf/test_map_in_map_user.c')
-rw-r--r-- | samples/bpf/test_map_in_map_user.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/samples/bpf/test_map_in_map_user.c b/samples/bpf/test_map_in_map_user.c index f62fdc2bd428..1aca18539d8d 100644 --- a/samples/bpf/test_map_in_map_user.c +++ b/samples/bpf/test_map_in_map_user.c @@ -32,6 +32,20 @@ static const char * const test_names[] = { #define NR_TESTS (sizeof(test_names) / sizeof(*test_names)) +static void check_map_id(int inner_map_fd, int map_in_map_fd, uint32_t key) +{ + struct bpf_map_info info = {}; + uint32_t info_len = sizeof(info); + int ret, id; + + ret = bpf_obj_get_info_by_fd(inner_map_fd, &info, &info_len); + assert(!ret); + + ret = bpf_map_lookup_elem(map_in_map_fd, &key, &id); + assert(!ret); + assert(id == info.id); +} + static void populate_map(uint32_t port_key, int magic_result) { int ret; @@ -45,12 +59,15 @@ static void populate_map(uint32_t port_key, int magic_result) ret = bpf_map_update_elem(A_OF_PORT_A, &port_key, &PORT_A, BPF_ANY); assert(!ret); + check_map_id(PORT_A, A_OF_PORT_A, port_key); ret = bpf_map_update_elem(H_OF_PORT_A, &port_key, &PORT_A, BPF_NOEXIST); assert(!ret); + check_map_id(PORT_A, H_OF_PORT_A, port_key); ret = bpf_map_update_elem(H_OF_PORT_H, &port_key, &PORT_H, BPF_NOEXIST); assert(!ret); + check_map_id(PORT_H, H_OF_PORT_H, port_key); } static void test_map_in_map(void) |