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selftests/bpf: convert socket_cookie test to sk storage

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This lets us test that both BPF_PROG_TYPE_CGROUP_SOCK_ADDR and
BPF_PROG_TYPE_SOCK_OPS can access underlying bpf_sock.

Cc: Martin Lau <kafai@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Stanislav Fomichev
2019-06-12 10:30:40 -07:00
committed by Daniel Borkmann
parent cd17d77705
commit 69d96519db
2 changed files with 40 additions and 34 deletions
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24
tools/testing/selftests/bpf/test_socket_cookie.c
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@@ -18,6 +18,11 @@
#define CG_PATH "/foo"
#define SOCKET_COOKIE_PROG "./socket_cookie_prog.o"
struct socket_cookie {
__u64 cookie_key;
__u32 cookie_value;
};
static int start_server(void)
{
struct sockaddr_in6 addr;
@@ -89,8 +94,7 @@ static int validate_map(struct bpf_map *map, int client_fd)
__u32 cookie_expected_value;
struct sockaddr_in6 addr;
socklen_t len = sizeof(addr);
__u32 cookie_value;
__u64 cookie_key;
struct socket_cookie val;
int err = 0;
int map_fd;
@@ -101,17 +105,7 @@ static int validate_map(struct bpf_map *map, int client_fd)
map_fd = bpf_map__fd(map);
err = bpf_map_get_next_key(map_fd, NULL, &cookie_key);
if (err) {
log_err("Can't get cookie key from map");
goto out;
}
err = bpf_map_lookup_elem(map_fd, &cookie_key, &cookie_value);
if (err) {
log_err("Can't get cookie value from map");
goto out;
}
err = bpf_map_lookup_elem(map_fd, &client_fd, &val);
err = getsockname(client_fd, (struct sockaddr *)&addr, &len);
if (err) {
@@ -120,8 +114,8 @@ static int validate_map(struct bpf_map *map, int client_fd)
}
cookie_expected_value = (ntohs(addr.sin6_port) << 8) | 0xFF;
if (cookie_value != cookie_expected_value) {
log_err("Unexpected value in map: %x != %x", cookie_value,
if (val.cookie_value != cookie_expected_value) {
log_err("Unexpected value in map: %x != %x", val.cookie_value,
cookie_expected_value);
goto err;
}