summaryrefslogtreecommitdiff
path: root/tools
diff options
context:
space:
mode:
authorArseniy Krasnov <avkrasnov@salutedevices.com>2023-11-22 00:16:42 +0300
committerJakub Kicinski <kuba@kernel.org>2023-11-23 08:49:16 -0800
commitf0863888f6cfef33e3117dccfe94fa78edf76be4 (patch)
treef30b84521a5394f699ae6dcfbf30fabd09abc21a /tools
parent4e20655e503e3a478cd1682bf25e3202dd823da8 (diff)
vsock/test: fix SEQPACKET message bounds test
Tune message length calculation to make this test work on machines where 'getpagesize()' returns >32KB. Now maximum message length is not hardcoded (on machines above it was smaller than 'getpagesize()' return value, thus we get negative value and test fails), but calculated at runtime and always bigger than 'getpagesize()' result. Reproduced on aarch64 with 64KB page size. Fixes: 5c338112e48a ("test/vsock: rework message bounds test") Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com> Reported-by: Bogdan Marcynkov <bmarcynk@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20231121211642.163474-1-avkrasnov@salutedevices.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/vsock/vsock_test.c19
1 files changed, 13 insertions, 6 deletions
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index 5b0e93f9996c..01fa816868bc 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -353,11 +353,12 @@ static void test_stream_msg_peek_server(const struct test_opts *opts)
}
#define SOCK_BUF_SIZE (2 * 1024 * 1024)
-#define MAX_MSG_SIZE (32 * 1024)
+#define MAX_MSG_PAGES 4
static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
{
unsigned long curr_hash;
+ size_t max_msg_size;
int page_size;
int msg_count;
int fd;
@@ -373,7 +374,8 @@ static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
curr_hash = 0;
page_size = getpagesize();
- msg_count = SOCK_BUF_SIZE / MAX_MSG_SIZE;
+ max_msg_size = MAX_MSG_PAGES * page_size;
+ msg_count = SOCK_BUF_SIZE / max_msg_size;
for (int i = 0; i < msg_count; i++) {
size_t buf_size;
@@ -383,7 +385,7 @@ static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
/* Use "small" buffers and "big" buffers. */
if (i & 1)
buf_size = page_size +
- (rand() % (MAX_MSG_SIZE - page_size));
+ (rand() % (max_msg_size - page_size));
else
buf_size = 1 + (rand() % page_size);
@@ -429,7 +431,6 @@ static void test_seqpacket_msg_bounds_server(const struct test_opts *opts)
unsigned long remote_hash;
unsigned long curr_hash;
int fd;
- char buf[MAX_MSG_SIZE];
struct msghdr msg = {0};
struct iovec iov = {0};
@@ -457,8 +458,13 @@ static void test_seqpacket_msg_bounds_server(const struct test_opts *opts)
control_writeln("SRVREADY");
/* Wait, until peer sends whole data. */
control_expectln("SENDDONE");
- iov.iov_base = buf;
- iov.iov_len = sizeof(buf);
+ iov.iov_len = MAX_MSG_PAGES * getpagesize();
+ iov.iov_base = malloc(iov.iov_len);
+ if (!iov.iov_base) {
+ perror("malloc");
+ exit(EXIT_FAILURE);
+ }
+
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
@@ -483,6 +489,7 @@ static void test_seqpacket_msg_bounds_server(const struct test_opts *opts)
curr_hash += hash_djb2(msg.msg_iov[0].iov_base, recv_size);
}
+ free(iov.iov_base);
close(fd);
remote_hash = control_readulong();