125 lines
2.5 KiB
C
125 lines
2.5 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2020 Cloudflare
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/*
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* Tests for sockmap/sockhash holding kTLS sockets.
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*/
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#include "test_progs.h"
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#define MAX_TEST_NAME 80
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#define TCP_ULP 31
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static int tcp_server(int family)
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{
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int err, s;
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s = socket(family, SOCK_STREAM, 0);
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if (CHECK_FAIL(s == -1)) {
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perror("socket");
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return -1;
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}
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err = listen(s, SOMAXCONN);
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if (CHECK_FAIL(err)) {
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perror("listen");
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return -1;
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}
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return s;
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}
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static int disconnect(int fd)
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{
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struct sockaddr unspec = { AF_UNSPEC };
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return connect(fd, &unspec, sizeof(unspec));
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}
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/* Disconnect (unhash) a kTLS socket after removing it from sockmap. */
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static void test_sockmap_ktls_disconnect_after_delete(int family, int map)
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{
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struct sockaddr_storage addr = {0};
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socklen_t len = sizeof(addr);
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int err, cli, srv, zero = 0;
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srv = tcp_server(family);
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if (srv == -1)
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return;
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err = getsockname(srv, (struct sockaddr *)&addr, &len);
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if (CHECK_FAIL(err)) {
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perror("getsockopt");
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goto close_srv;
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}
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cli = socket(family, SOCK_STREAM, 0);
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if (CHECK_FAIL(cli == -1)) {
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perror("socket");
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goto close_srv;
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}
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err = connect(cli, (struct sockaddr *)&addr, len);
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if (CHECK_FAIL(err)) {
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perror("connect");
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goto close_cli;
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}
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err = bpf_map_update_elem(map, &zero, &cli, 0);
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if (CHECK_FAIL(err)) {
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perror("bpf_map_update_elem");
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goto close_cli;
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}
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err = setsockopt(cli, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
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if (CHECK_FAIL(err)) {
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perror("setsockopt(TCP_ULP)");
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goto close_cli;
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}
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err = bpf_map_delete_elem(map, &zero);
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if (CHECK_FAIL(err)) {
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perror("bpf_map_delete_elem");
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goto close_cli;
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}
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err = disconnect(cli);
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if (CHECK_FAIL(err))
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perror("disconnect");
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close_cli:
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close(cli);
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close_srv:
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close(srv);
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}
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static void run_tests(int family, enum bpf_map_type map_type)
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{
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char test_name[MAX_TEST_NAME];
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int map;
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map = bpf_create_map(map_type, sizeof(int), sizeof(int), 1, 0);
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if (CHECK_FAIL(map < 0)) {
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perror("bpf_map_create");
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return;
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}
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snprintf(test_name, MAX_TEST_NAME,
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"sockmap_ktls disconnect_after_delete %s %s",
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family == AF_INET ? "IPv4" : "IPv6",
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map_type == BPF_MAP_TYPE_SOCKMAP ? "SOCKMAP" : "SOCKHASH");
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if (!test__start_subtest(test_name))
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return;
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test_sockmap_ktls_disconnect_after_delete(family, map);
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close(map);
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}
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void test_sockmap_ktls(void)
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{
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run_tests(AF_INET, BPF_MAP_TYPE_SOCKMAP);
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run_tests(AF_INET, BPF_MAP_TYPE_SOCKHASH);
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run_tests(AF_INET6, BPF_MAP_TYPE_SOCKMAP);
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run_tests(AF_INET6, BPF_MAP_TYPE_SOCKHASH);
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}
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