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vsock_test: add SOCK_SEQPACKET tests

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Implement two tests of SOCK_SEQPACKET socket: first sends data by
several 'write()'s and checks that number of 'read()' were same.
Second test checks MSG_TRUNC flag. Cases for connect(), bind(),
etc. are not tested, because it is same as for stream socket.

Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arseny Krasnov
2021-06-11 14:14:04 +03:00
committed by David S. Miller
parent 6e90a57795
commit 41b792d7a8
3 changed files with 146 additions and 5 deletions
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116
tools/testing/vsock/vsock_test.c
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@@ -14,6 +14,8 @@
#include <errno.h>
#include <unistd.h>
#include <linux/kernel.h>
#include <sys/types.h>
#include <sys/socket.h>
#include "timeout.h"
#include "control.h"
@@ -279,6 +281,110 @@ static void test_stream_msg_peek_server(const struct test_opts *opts)
close(fd);
}
#define MESSAGES_CNT 7
static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
{
int fd;
fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
if (fd < 0) {
perror("connect");
exit(EXIT_FAILURE);
}
/* Send several messages, one with MSG_EOR flag */
for (int i = 0; i < MESSAGES_CNT; i++)
send_byte(fd, 1, 0);
control_writeln("SENDDONE");
close(fd);
}
static void test_seqpacket_msg_bounds_server(const struct test_opts *opts)
{
int fd;
char buf[16];
struct msghdr msg = {0};
struct iovec iov = {0};
fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
if (fd < 0) {
perror("accept");
exit(EXIT_FAILURE);
}
control_expectln("SENDDONE");
iov.iov_base = buf;
iov.iov_len = sizeof(buf);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
for (int i = 0; i < MESSAGES_CNT; i++) {
if (recvmsg(fd, &msg, 0) != 1) {
perror("message bound violated");
exit(EXIT_FAILURE);
}
}
close(fd);
}
#define MESSAGE_TRUNC_SZ 32
static void test_seqpacket_msg_trunc_client(const struct test_opts *opts)
{
int fd;
char buf[MESSAGE_TRUNC_SZ];
fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
if (fd < 0) {
perror("connect");
exit(EXIT_FAILURE);
}
if (send(fd, buf, sizeof(buf), 0) != sizeof(buf)) {
perror("send failed");
exit(EXIT_FAILURE);
}
control_writeln("SENDDONE");
close(fd);
}
static void test_seqpacket_msg_trunc_server(const struct test_opts *opts)
{
int fd;
char buf[MESSAGE_TRUNC_SZ / 2];
struct msghdr msg = {0};
struct iovec iov = {0};
fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
if (fd < 0) {
perror("accept");
exit(EXIT_FAILURE);
}
control_expectln("SENDDONE");
iov.iov_base = buf;
iov.iov_len = sizeof(buf);
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
ssize_t ret = recvmsg(fd, &msg, MSG_TRUNC);
if (ret != MESSAGE_TRUNC_SZ) {
printf("%zi\n", ret);
perror("MSG_TRUNC doesn't work");
exit(EXIT_FAILURE);
}
if (!(msg.msg_flags & MSG_TRUNC)) {
fprintf(stderr, "MSG_TRUNC expected\n");
exit(EXIT_FAILURE);
}
close(fd);
}
static struct test_case test_cases[] = {
{
.name = "SOCK_STREAM connection reset",
@@ -309,6 +415,16 @@ static struct test_case test_cases[] = {
.run_client = test_stream_msg_peek_client,
.run_server = test_stream_msg_peek_server,
},
{
.name = "SOCK_SEQPACKET msg bounds",
.run_client = test_seqpacket_msg_bounds_client,
.run_server = test_seqpacket_msg_bounds_server,
},
{
.name = "SOCK_SEQPACKET MSG_TRUNC flag",
.run_client = test_seqpacket_msg_trunc_client,
.run_server = test_seqpacket_msg_trunc_server,
},
{},
};