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Tue, 3 Dec 2024 15:07:13 +0000 (GMT) From: Konstantin Shkolnyy To: sgarzare@redhat.com Cc: virtualization@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, mjrosato@linux.ibm.com, pabeni@redhat.com, AVKrasnov@sberdevices.ru, mst@redhat.com, Konstantin Shkolnyy Subject: [PATCH net v8 2/3] vsock/test: fix parameter types in SO_VM_SOCKETS_* calls Date: Tue, 3 Dec 2024 09:06:55 -0600 Message-Id: <20241203150656.287028-3-kshk@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241203150656.287028-1-kshk@linux.ibm.com> References: <20241203150656.287028-1-kshk@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: wI8VYMRXivoYEt4FnH8sh9VLWKMSfo-Z X-Proofpoint-GUID: wI8VYMRXivoYEt4FnH8sh9VLWKMSfo-Z X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 clxscore=1011 malwarescore=0 bulkscore=0 adultscore=0 priorityscore=1501 mlxlogscore=999 impostorscore=0 phishscore=0 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412030127 Content-Type: text/plain; charset="utf-8" Change parameters of SO_VM_SOCKETS_* to unsigned long long as documented in the vm_sockets.h, because the corresponding kernel code requires them to be at least 64-bit, no matter what architecture. Otherwise they are too small on 32-bit machines. Fixes: 5c338112e48a ("test/vsock: rework message bounds test") Fixes: 685a21c314a8 ("test/vsock: add big message test") Fixes: 542e893fbadc ("vsock/test: two tests to check credit update logic") Fixes: 8abbffd27ced ("test/vsock: vsock_perf utility") Signed-off-by: Konstantin Shkolnyy Reviewed-by: Stefano Garzarella --- tools/testing/vsock/vsock_perf.c | 4 ++-- tools/testing/vsock/vsock_test.c | 22 +++++++++++++++++----- 2 files changed, 19 insertions(+), 7 deletions(-) diff --git a/tools/testing/vsock/vsock_perf.c b/tools/testing/vsock/vsock_p= erf.c index 22633c2848cc..8e0a6c0770d3 100644 --- a/tools/testing/vsock/vsock_perf.c +++ b/tools/testing/vsock/vsock_perf.c @@ -33,7 +33,7 @@ =20 static unsigned int port =3D DEFAULT_PORT; static unsigned long buf_size_bytes =3D DEFAULT_BUF_SIZE_BYTES; -static unsigned long vsock_buf_bytes =3D DEFAULT_VSOCK_BUF_BYTES; +static unsigned long long vsock_buf_bytes =3D DEFAULT_VSOCK_BUF_BYTES; static bool zerocopy; =20 static void error(const char *s) @@ -162,7 +162,7 @@ static void run_receiver(int rcvlowat_bytes) printf("Run as receiver\n"); printf("Listen port %u\n", port); printf("RX buffer %lu bytes\n", buf_size_bytes); - printf("vsock buffer %lu bytes\n", vsock_buf_bytes); + printf("vsock buffer %llu bytes\n", vsock_buf_bytes); printf("SO_RCVLOWAT %d bytes\n", rcvlowat_bytes); =20 fd =3D socket(AF_VSOCK, SOCK_STREAM, 0); diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_t= est.c index 7fd25b814b4b..0b7f5bf546da 100644 --- a/tools/testing/vsock/vsock_test.c +++ b/tools/testing/vsock/vsock_test.c @@ -429,7 +429,7 @@ static void test_seqpacket_msg_bounds_client(const stru= ct test_opts *opts) =20 static void test_seqpacket_msg_bounds_server(const struct test_opts *opts) { - unsigned long sock_buf_size; + unsigned long long sock_buf_size; unsigned long remote_hash; unsigned long curr_hash; int fd; @@ -634,7 +634,8 @@ static void test_seqpacket_timeout_server(const struct = test_opts *opts) =20 static void test_seqpacket_bigmsg_client(const struct test_opts *opts) { - unsigned long sock_buf_size; + unsigned long long sock_buf_size; + size_t buf_size; socklen_t len; void *data; int fd; @@ -655,13 +656,20 @@ static void test_seqpacket_bigmsg_client(const struct= test_opts *opts) =20 sock_buf_size++; =20 - data =3D malloc(sock_buf_size); + /* size_t can be < unsigned long long */ + buf_size =3D (size_t)sock_buf_size; + if (buf_size !=3D sock_buf_size) { + fprintf(stderr, "Returned BUFFER_SIZE too large\n"); + exit(EXIT_FAILURE); + } + + data =3D malloc(buf_size); if (!data) { perror("malloc"); exit(EXIT_FAILURE); } =20 - send_buf(fd, data, sock_buf_size, 0, -EMSGSIZE); + send_buf(fd, data, buf_size, 0, -EMSGSIZE); =20 control_writeln("CLISENT"); =20 @@ -1360,6 +1368,7 @@ static void test_stream_credit_update_test(const stru= ct test_opts *opts, int recv_buf_size; struct pollfd fds; size_t buf_size; + unsigned long long sock_buf_size; void *buf; int fd; =20 @@ -1371,8 +1380,11 @@ static void test_stream_credit_update_test(const str= uct test_opts *opts, =20 buf_size =3D RCVLOWAT_CREDIT_UPD_BUF_SIZE; =20 + /* size_t can be < unsigned long long */ + sock_buf_size =3D buf_size; + if (setsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_SIZE, - &buf_size, sizeof(buf_size))) { + &sock_buf_size, sizeof(sock_buf_size))) { perror("setsockopt(SO_VM_SOCKETS_BUFFER_SIZE)"); exit(EXIT_FAILURE); } --=20 2.34.1