1/* SPDX-License-Identifier: GPL-2.0-only */
2#ifndef UTIL_H
3#define UTIL_H
4
5#include <sys/socket.h>
6#include <linux/vm_sockets.h>
7
8/* Tests can either run as the client or the server */
9enum test_mode {
10	TEST_MODE_UNSET,
11	TEST_MODE_CLIENT,
12	TEST_MODE_SERVER
13};
14
15#define DEFAULT_PEER_PORT	1234
16
17/* Test runner options */
18struct test_opts {
19	enum test_mode mode;
20	unsigned int peer_cid;
21	unsigned int peer_port;
22};
23
24/* A test case definition.  Test functions must print failures to stderr and
25 * terminate with exit(EXIT_FAILURE).
26 */
27struct test_case {
28	const char *name; /* human-readable name */
29
30	/* Called when test mode is TEST_MODE_CLIENT */
31	void (*run_client)(const struct test_opts *opts);
32
33	/* Called when test mode is TEST_MODE_SERVER */
34	void (*run_server)(const struct test_opts *opts);
35
36	bool skip;
37};
38
39void init_signals(void);
40unsigned int parse_cid(const char *str);
41unsigned int parse_port(const char *str);
42int vsock_stream_connect(unsigned int cid, unsigned int port);
43int vsock_bind_connect(unsigned int cid, unsigned int port,
44		       unsigned int bind_port, int type);
45int vsock_seqpacket_connect(unsigned int cid, unsigned int port);
46int vsock_stream_accept(unsigned int cid, unsigned int port,
47			struct sockaddr_vm *clientaddrp);
48int vsock_stream_listen(unsigned int cid, unsigned int port);
49int vsock_seqpacket_accept(unsigned int cid, unsigned int port,
50			   struct sockaddr_vm *clientaddrp);
51void vsock_wait_remote_close(int fd);
52void send_buf(int fd, const void *buf, size_t len, int flags,
53	      ssize_t expected_ret);
54void recv_buf(int fd, void *buf, size_t len, int flags, ssize_t expected_ret);
55void send_byte(int fd, int expected_ret, int flags);
56void recv_byte(int fd, int expected_ret, int flags);
57void run_tests(const struct test_case *test_cases,
58	       const struct test_opts *opts);
59void list_tests(const struct test_case *test_cases);
60void skip_test(struct test_case *test_cases, size_t test_cases_len,
61	       const char *test_id_str);
62unsigned long hash_djb2(const void *data, size_t len);
63size_t iovec_bytes(const struct iovec *iov, size_t iovnum);
64unsigned long iovec_hash_djb2(const struct iovec *iov, size_t iovnum);
65struct iovec *alloc_test_iovec(const struct iovec *test_iovec, int iovnum);
66void free_test_iovec(const struct iovec *test_iovec,
67		     struct iovec *iovec, int iovnum);
68#endif /* UTIL_H */
69