diff options
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c | 76 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/progs/test_sockmap_ktls.c | 10 |
2 files changed, 86 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c index 3044f54b16d6..b6c471da5c28 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c @@ -240,6 +240,80 @@ out: test_sockmap_ktls__destroy(skel); } +static void test_sockmap_ktls_tx_no_buf(int family, int sotype, bool push) +{ + int c = -1, p = -1, one = 1, two = 2; + struct test_sockmap_ktls *skel; + unsigned char *data = NULL; + struct msghdr msg = {0}; + struct iovec iov[2]; + int prog_fd, map_fd; + int txrx_buf = 1024; + int iov_length = 8192; + int err; + + skel = test_sockmap_ktls__open_and_load(); + if (!ASSERT_TRUE(skel, "open ktls skel")) + return; + + err = create_pair(family, sotype, &c, &p); + if (!ASSERT_OK(err, "create_pair()")) + goto out; + + err = setsockopt(c, SOL_SOCKET, SO_RCVBUFFORCE, &txrx_buf, sizeof(int)); + err |= setsockopt(p, SOL_SOCKET, SO_SNDBUFFORCE, &txrx_buf, sizeof(int)); + if (!ASSERT_OK(err, "set buf limit")) + goto out; + + prog_fd = bpf_program__fd(skel->progs.prog_sk_policy_redir); + map_fd = bpf_map__fd(skel->maps.sock_map); + + err = bpf_prog_attach(prog_fd, map_fd, BPF_SK_MSG_VERDICT, 0); + if (!ASSERT_OK(err, "bpf_prog_attach sk msg")) + goto out; + + err = bpf_map_update_elem(map_fd, &one, &c, BPF_NOEXIST); + if (!ASSERT_OK(err, "bpf_map_update_elem(c)")) + goto out; + + err = bpf_map_update_elem(map_fd, &two, &p, BPF_NOEXIST); + if (!ASSERT_OK(err, "bpf_map_update_elem(p)")) + goto out; + + skel->bss->apply_bytes = 1024; + + err = init_ktls_pairs(c, p); + if (!ASSERT_OK(err, "init_ktls_pairs(c, p)")) + goto out; + + data = calloc(iov_length, sizeof(char)); + if (!data) + goto out; + + iov[0].iov_base = data; + iov[0].iov_len = iov_length; + iov[1].iov_base = data; + iov[1].iov_len = iov_length; + msg.msg_iov = iov; + msg.msg_iovlen = 2; + + for (;;) { + err = sendmsg(c, &msg, MSG_DONTWAIT); + if (err <= 0) + break; + } + +out: + if (data) + free(data); + if (c != -1) + close(c); + if (p != -1) + close(p); + + test_sockmap_ktls__destroy(skel); +} + static void run_tests(int family, enum bpf_map_type map_type) { int map; @@ -262,6 +336,8 @@ static void run_ktls_test(int family, int sotype) test_sockmap_ktls_tx_cork(family, sotype, false); if (test__start_subtest("tls tx cork with push")) test_sockmap_ktls_tx_cork(family, sotype, true); + if (test__start_subtest("tls tx egress with no buf")) + test_sockmap_ktls_tx_no_buf(family, sotype, true); } void test_sockmap_ktls(void) diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_ktls.c b/tools/testing/selftests/bpf/progs/test_sockmap_ktls.c index e0f757929ef4..8bdb9987c0c7 100644 --- a/tools/testing/selftests/bpf/progs/test_sockmap_ktls.c +++ b/tools/testing/selftests/bpf/progs/test_sockmap_ktls.c @@ -6,6 +6,7 @@ int cork_byte; int push_start; int push_end; +int apply_bytes; struct { __uint(type, BPF_MAP_TYPE_SOCKMAP); @@ -24,3 +25,12 @@ int prog_sk_policy(struct sk_msg_md *msg) return SK_PASS; } + +SEC("sk_msg") +int prog_sk_policy_redir(struct sk_msg_md *msg) +{ + int two = 2; + + bpf_msg_apply_bytes(msg, apply_bytes); + return bpf_msg_redirect_map(msg, &sock_map, two, 0); +} |