A bunch of tests uses uninitialized stack memory as random
data to send. This is harmless but generates compiler warnings.
Explicitly init the buffers with random data.
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
---
tools/testing/selftests/net/tls.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 426d07875a48..58fea6eb588d 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -25,6 +25,18 @@
#define TLS_PAYLOAD_MAX_LEN 16384
#define SOL_TLS 282
+static void memrnd(void *s, size_t n)
+{
+ int *dword = s;
+ char *byte;
+
+ for (; n >= 4; n -= 4)
+ *dword++ = rand();
+ byte = (void *)dword;
+ while (n--)
+ *byte++ = rand();
+}
+
FIXTURE(tls_basic)
{
int fd, cfd;
@@ -308,6 +320,8 @@ TEST_F(tls, recv_max)
char recv_mem[TLS_PAYLOAD_MAX_LEN];
char buf[TLS_PAYLOAD_MAX_LEN];
+ memrnd(buf, sizeof(buf));
+
EXPECT_GE(send(self->fd, buf, send_len, 0), 0);
EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1);
EXPECT_EQ(memcmp(buf, recv_mem, send_len), 0);
@@ -588,6 +602,8 @@ TEST_F(tls, recvmsg_single_max)
struct iovec vec;
struct msghdr hdr;
+ memrnd(send_mem, sizeof(send_mem));
+
EXPECT_EQ(send(self->fd, send_mem, send_len, 0), send_len);
vec.iov_base = (char *)recv_mem;
vec.iov_len = TLS_PAYLOAD_MAX_LEN;
@@ -610,6 +626,8 @@ TEST_F(tls, recvmsg_multiple)
struct msghdr hdr;
int i;
+ memrnd(buf, sizeof(buf));
+
EXPECT_EQ(send(self->fd, buf, send_len, 0), send_len);
for (i = 0; i < msg_iovlen; i++) {
iov_base[i] = (char *)malloc(iov_len);
@@ -634,6 +652,8 @@ TEST_F(tls, single_send_multiple_recv)
char send_mem[TLS_PAYLOAD_MAX_LEN * 2];
char recv_mem[TLS_PAYLOAD_MAX_LEN * 2];
+ memrnd(send_mem, sizeof(send_mem));
+
EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
memset(recv_mem, 0, total_len);
