2022-08-15 18:03:50

by Bobby Eshleman

[permalink] [raw]
Subject: [PATCH 6/6] vsock_test: add tests for vsock dgram

From: Jiang Wang <[email protected]>

Added test cases for vsock dgram types.

Signed-off-by: Jiang Wang <[email protected]>
---
tools/testing/vsock/util.c | 105 +++++++++++++++++
tools/testing/vsock/util.h | 4 +
tools/testing/vsock/vsock_test.c | 195 +++++++++++++++++++++++++++++++
3 files changed, 304 insertions(+)

diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c
index 2acbb7703c6a..d2f5b223bf85 100644
--- a/tools/testing/vsock/util.c
+++ b/tools/testing/vsock/util.c
@@ -260,6 +260,57 @@ void send_byte(int fd, int expected_ret, int flags)
}
}

+/* Transmit one byte and check the return value.
+ *
+ * expected_ret:
+ * <0 Negative errno (for testing errors)
+ * 0 End-of-file
+ * 1 Success
+ */
+void sendto_byte(int fd, const struct sockaddr *dest_addr, int len, int expected_ret,
+ int flags)
+{
+ const uint8_t byte = 'A';
+ ssize_t nwritten;
+
+ timeout_begin(TIMEOUT);
+ do {
+ nwritten = sendto(fd, &byte, sizeof(byte), flags, dest_addr,
+ len);
+ timeout_check("write");
+ } while (nwritten < 0 && errno == EINTR);
+ timeout_end();
+
+ if (expected_ret < 0) {
+ if (nwritten != -1) {
+ fprintf(stderr, "bogus sendto(2) return value %zd\n",
+ nwritten);
+ exit(EXIT_FAILURE);
+ }
+ if (errno != -expected_ret) {
+ perror("write");
+ exit(EXIT_FAILURE);
+ }
+ return;
+ }
+
+ if (nwritten < 0) {
+ perror("write");
+ exit(EXIT_FAILURE);
+ }
+ if (nwritten == 0) {
+ if (expected_ret == 0)
+ return;
+
+ fprintf(stderr, "unexpected EOF while sending byte\n");
+ exit(EXIT_FAILURE);
+ }
+ if (nwritten != sizeof(byte)) {
+ fprintf(stderr, "bogus sendto(2) return value %zd\n", nwritten);
+ exit(EXIT_FAILURE);
+ }
+}
+
/* Receive one byte and check the return value.
*
* expected_ret:
@@ -313,6 +364,60 @@ void recv_byte(int fd, int expected_ret, int flags)
}
}

+/* Receive one byte and check the return value.
+ *
+ * expected_ret:
+ * <0 Negative errno (for testing errors)
+ * 0 End-of-file
+ * 1 Success
+ */
+void recvfrom_byte(int fd, struct sockaddr *src_addr, socklen_t *addrlen,
+ int expected_ret, int flags)
+{
+ uint8_t byte;
+ ssize_t nread;
+
+ timeout_begin(TIMEOUT);
+ do {
+ nread = recvfrom(fd, &byte, sizeof(byte), flags, src_addr, addrlen);
+ timeout_check("read");
+ } while (nread < 0 && errno == EINTR);
+ timeout_end();
+
+ if (expected_ret < 0) {
+ if (nread != -1) {
+ fprintf(stderr, "bogus recvfrom(2) return value %zd\n",
+ nread);
+ exit(EXIT_FAILURE);
+ }
+ if (errno != -expected_ret) {
+ perror("read");
+ exit(EXIT_FAILURE);
+ }
+ return;
+ }
+
+ if (nread < 0) {
+ perror("read");
+ exit(EXIT_FAILURE);
+ }
+ if (nread == 0) {
+ if (expected_ret == 0)
+ return;
+
+ fprintf(stderr, "unexpected EOF while receiving byte\n");
+ exit(EXIT_FAILURE);
+ }
+ if (nread != sizeof(byte)) {
+ fprintf(stderr, "bogus recvfrom(2) return value %zd\n", nread);
+ exit(EXIT_FAILURE);
+ }
+ if (byte != 'A') {
+ fprintf(stderr, "unexpected byte read %c\n", byte);
+ exit(EXIT_FAILURE);
+ }
+}
+
/* Run test cases. The program terminates if a failure occurs. */
void run_tests(const struct test_case *test_cases,
const struct test_opts *opts)
diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h
index a3375ad2fb7f..7213f2a51c1e 100644
--- a/tools/testing/vsock/util.h
+++ b/tools/testing/vsock/util.h
@@ -43,7 +43,11 @@ int vsock_seqpacket_accept(unsigned int cid, unsigned int port,
struct sockaddr_vm *clientaddrp);
void vsock_wait_remote_close(int fd);
void send_byte(int fd, int expected_ret, int flags);
+void sendto_byte(int fd, const struct sockaddr *dest_addr, int len, int expected_ret,
+ int flags);
void recv_byte(int fd, int expected_ret, int flags);
+void recvfrom_byte(int fd, struct sockaddr *src_addr, socklen_t *addrlen,
+ int expected_ret, int flags);
void run_tests(const struct test_case *test_cases,
const struct test_opts *opts);
void list_tests(const struct test_case *test_cases);
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index dc577461afc2..640379f1b462 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c
@@ -201,6 +201,115 @@ static void test_stream_server_close_server(const struct test_opts *opts)
close(fd);
}

+static void test_dgram_sendto_client(const struct test_opts *opts)
+{
+ union {
+ struct sockaddr sa;
+ struct sockaddr_vm svm;
+ } addr = {
+ .svm = {
+ .svm_family = AF_VSOCK,
+ .svm_port = 1234,
+ .svm_cid = opts->peer_cid,
+ },
+ };
+ int fd;
+
+ /* Wait for the server to be ready */
+ control_expectln("BIND");
+
+ fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
+ if (fd < 0) {
+ perror("socket");
+ exit(EXIT_FAILURE);
+ }
+
+ sendto_byte(fd, &addr.sa, sizeof(addr.svm), 1, 0);
+
+ /* Notify the server that the client has finished */
+ control_writeln("DONE");
+
+ close(fd);
+}
+
+static void test_dgram_sendto_server(const struct test_opts *opts)
+{
+ union {
+ struct sockaddr sa;
+ struct sockaddr_vm svm;
+ } addr = {
+ .svm = {
+ .svm_family = AF_VSOCK,
+ .svm_port = 1234,
+ .svm_cid = VMADDR_CID_ANY,
+ },
+ };
+ int fd;
+ int len = sizeof(addr.sa);
+
+ fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
+
+ if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
+ perror("bind");
+ exit(EXIT_FAILURE);
+ }
+
+ /* Notify the client that the server is ready */
+ control_writeln("BIND");
+
+ recvfrom_byte(fd, &addr.sa, &len, 1, 0);
+ printf("got message from cid:%d, port %u ", addr.svm.svm_cid,
+ addr.svm.svm_port);
+
+ /* Wait for the client to finish */
+ control_expectln("DONE");
+
+ close(fd);
+}
+
+static void test_dgram_connect_client(const struct test_opts *opts)
+{
+ union {
+ struct sockaddr sa;
+ struct sockaddr_vm svm;
+ } addr = {
+ .svm = {
+ .svm_family = AF_VSOCK,
+ .svm_port = 1234,
+ .svm_cid = opts->peer_cid,
+ },
+ };
+ int fd;
+ int ret;
+
+ /* Wait for the server to be ready */
+ control_expectln("BIND");
+
+ fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
+ if (fd < 0) {
+ perror("bind");
+ exit(EXIT_FAILURE);
+ }
+
+ ret = connect(fd, &addr.sa, sizeof(addr.svm));
+ if (ret < 0) {
+ perror("connect");
+ exit(EXIT_FAILURE);
+ }
+
+ send_byte(fd, 1, 0);
+
+ /* Notify the server that the client has finished */
+ control_writeln("DONE");
+
+ close(fd);
+}
+
+static void test_dgram_connect_server(const struct test_opts *opts)
+{
+ test_dgram_sendto_server(opts);
+}
+
/* With the standard socket sizes, VMCI is able to support about 100
* concurrent stream connections.
*/
@@ -254,6 +363,77 @@ static void test_stream_multiconn_server(const struct test_opts *opts)
close(fds[i]);
}

+static void test_dgram_multiconn_client(const struct test_opts *opts)
+{
+ int fds[MULTICONN_NFDS];
+ int i;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_vm svm;
+ } addr = {
+ .svm = {
+ .svm_family = AF_VSOCK,
+ .svm_port = 1234,
+ .svm_cid = opts->peer_cid,
+ },
+ };
+
+ /* Wait for the server to be ready */
+ control_expectln("BIND");
+
+ for (i = 0; i < MULTICONN_NFDS; i++) {
+ fds[i] = socket(AF_VSOCK, SOCK_DGRAM, 0);
+ if (fds[i] < 0) {
+ perror("socket");
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ for (i = 0; i < MULTICONN_NFDS; i++)
+ sendto_byte(fds[i], &addr.sa, sizeof(addr.svm), 1, 0);
+
+ /* Notify the server that the client has finished */
+ control_writeln("DONE");
+
+ for (i = 0; i < MULTICONN_NFDS; i++)
+ close(fds[i]);
+}
+
+static void test_dgram_multiconn_server(const struct test_opts *opts)
+{
+ union {
+ struct sockaddr sa;
+ struct sockaddr_vm svm;
+ } addr = {
+ .svm = {
+ .svm_family = AF_VSOCK,
+ .svm_port = 1234,
+ .svm_cid = VMADDR_CID_ANY,
+ },
+ };
+ int fd;
+ int len = sizeof(addr.sa);
+ int i;
+
+ fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
+
+ if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
+ perror("bind");
+ exit(EXIT_FAILURE);
+ }
+
+ /* Notify the client that the server is ready */
+ control_writeln("BIND");
+
+ for (i = 0; i < MULTICONN_NFDS; i++)
+ recvfrom_byte(fd, &addr.sa, &len, 1, 0);
+
+ /* Wait for the client to finish */
+ control_expectln("DONE");
+
+ close(fd);
+}
+
static void test_stream_msg_peek_client(const struct test_opts *opts)
{
int fd;
@@ -646,6 +826,21 @@ static struct test_case test_cases[] = {
.run_client = test_seqpacket_invalid_rec_buffer_client,
.run_server = test_seqpacket_invalid_rec_buffer_server,
},
+ {
+ .name = "SOCK_DGRAM client close",
+ .run_client = test_dgram_sendto_client,
+ .run_server = test_dgram_sendto_server,
+ },
+ {
+ .name = "SOCK_DGRAM client connect",
+ .run_client = test_dgram_connect_client,
+ .run_server = test_dgram_connect_server,
+ },
+ {
+ .name = "SOCK_DGRAM multiple connections",
+ .run_client = test_dgram_multiconn_client,
+ .run_server = test_dgram_multiconn_server,
+ },
{},
};

--
2.35.1


2022-08-16 17:42:09

by Bobby Eshleman

[permalink] [raw]
Subject: Re: [PATCH 6/6] vsock_test: add tests for vsock dgram

CC'ing [email protected]

On Mon, Aug 15, 2022 at 10:56:09AM -0700, Bobby Eshleman wrote:
> From: Jiang Wang <[email protected]>
>
> Added test cases for vsock dgram types.
>
> Signed-off-by: Jiang Wang <[email protected]>
> ---
> tools/testing/vsock/util.c | 105 +++++++++++++++++
> tools/testing/vsock/util.h | 4 +
> tools/testing/vsock/vsock_test.c | 195 +++++++++++++++++++++++++++++++
> 3 files changed, 304 insertions(+)
>
> diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c
> index 2acbb7703c6a..d2f5b223bf85 100644
> --- a/tools/testing/vsock/util.c
> +++ b/tools/testing/vsock/util.c
> @@ -260,6 +260,57 @@ void send_byte(int fd, int expected_ret, int flags)
> }
> }
>
> +/* Transmit one byte and check the return value.
> + *
> + * expected_ret:
> + * <0 Negative errno (for testing errors)
> + * 0 End-of-file
> + * 1 Success
> + */
> +void sendto_byte(int fd, const struct sockaddr *dest_addr, int len, int expected_ret,
> + int flags)
> +{
> + const uint8_t byte = 'A';
> + ssize_t nwritten;
> +
> + timeout_begin(TIMEOUT);
> + do {
> + nwritten = sendto(fd, &byte, sizeof(byte), flags, dest_addr,
> + len);
> + timeout_check("write");
> + } while (nwritten < 0 && errno == EINTR);
> + timeout_end();
> +
> + if (expected_ret < 0) {
> + if (nwritten != -1) {
> + fprintf(stderr, "bogus sendto(2) return value %zd\n",
> + nwritten);
> + exit(EXIT_FAILURE);
> + }
> + if (errno != -expected_ret) {
> + perror("write");
> + exit(EXIT_FAILURE);
> + }
> + return;
> + }
> +
> + if (nwritten < 0) {
> + perror("write");
> + exit(EXIT_FAILURE);
> + }
> + if (nwritten == 0) {
> + if (expected_ret == 0)
> + return;
> +
> + fprintf(stderr, "unexpected EOF while sending byte\n");
> + exit(EXIT_FAILURE);
> + }
> + if (nwritten != sizeof(byte)) {
> + fprintf(stderr, "bogus sendto(2) return value %zd\n", nwritten);
> + exit(EXIT_FAILURE);
> + }
> +}
> +
> /* Receive one byte and check the return value.
> *
> * expected_ret:
> @@ -313,6 +364,60 @@ void recv_byte(int fd, int expected_ret, int flags)
> }
> }
>
> +/* Receive one byte and check the return value.
> + *
> + * expected_ret:
> + * <0 Negative errno (for testing errors)
> + * 0 End-of-file
> + * 1 Success
> + */
> +void recvfrom_byte(int fd, struct sockaddr *src_addr, socklen_t *addrlen,
> + int expected_ret, int flags)
> +{
> + uint8_t byte;
> + ssize_t nread;
> +
> + timeout_begin(TIMEOUT);
> + do {
> + nread = recvfrom(fd, &byte, sizeof(byte), flags, src_addr, addrlen);
> + timeout_check("read");
> + } while (nread < 0 && errno == EINTR);
> + timeout_end();
> +
> + if (expected_ret < 0) {
> + if (nread != -1) {
> + fprintf(stderr, "bogus recvfrom(2) return value %zd\n",
> + nread);
> + exit(EXIT_FAILURE);
> + }
> + if (errno != -expected_ret) {
> + perror("read");
> + exit(EXIT_FAILURE);
> + }
> + return;
> + }
> +
> + if (nread < 0) {
> + perror("read");
> + exit(EXIT_FAILURE);
> + }
> + if (nread == 0) {
> + if (expected_ret == 0)
> + return;
> +
> + fprintf(stderr, "unexpected EOF while receiving byte\n");
> + exit(EXIT_FAILURE);
> + }
> + if (nread != sizeof(byte)) {
> + fprintf(stderr, "bogus recvfrom(2) return value %zd\n", nread);
> + exit(EXIT_FAILURE);
> + }
> + if (byte != 'A') {
> + fprintf(stderr, "unexpected byte read %c\n", byte);
> + exit(EXIT_FAILURE);
> + }
> +}
> +
> /* Run test cases. The program terminates if a failure occurs. */
> void run_tests(const struct test_case *test_cases,
> const struct test_opts *opts)
> diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h
> index a3375ad2fb7f..7213f2a51c1e 100644
> --- a/tools/testing/vsock/util.h
> +++ b/tools/testing/vsock/util.h
> @@ -43,7 +43,11 @@ int vsock_seqpacket_accept(unsigned int cid, unsigned int port,
> struct sockaddr_vm *clientaddrp);
> void vsock_wait_remote_close(int fd);
> void send_byte(int fd, int expected_ret, int flags);
> +void sendto_byte(int fd, const struct sockaddr *dest_addr, int len, int expected_ret,
> + int flags);
> void recv_byte(int fd, int expected_ret, int flags);
> +void recvfrom_byte(int fd, struct sockaddr *src_addr, socklen_t *addrlen,
> + int expected_ret, int flags);
> void run_tests(const struct test_case *test_cases,
> const struct test_opts *opts);
> void list_tests(const struct test_case *test_cases);
> diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
> index dc577461afc2..640379f1b462 100644
> --- a/tools/testing/vsock/vsock_test.c
> +++ b/tools/testing/vsock/vsock_test.c
> @@ -201,6 +201,115 @@ static void test_stream_server_close_server(const struct test_opts *opts)
> close(fd);
> }
>
> +static void test_dgram_sendto_client(const struct test_opts *opts)
> +{
> + union {
> + struct sockaddr sa;
> + struct sockaddr_vm svm;
> + } addr = {
> + .svm = {
> + .svm_family = AF_VSOCK,
> + .svm_port = 1234,
> + .svm_cid = opts->peer_cid,
> + },
> + };
> + int fd;
> +
> + /* Wait for the server to be ready */
> + control_expectln("BIND");
> +
> + fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
> + if (fd < 0) {
> + perror("socket");
> + exit(EXIT_FAILURE);
> + }
> +
> + sendto_byte(fd, &addr.sa, sizeof(addr.svm), 1, 0);
> +
> + /* Notify the server that the client has finished */
> + control_writeln("DONE");
> +
> + close(fd);
> +}
> +
> +static void test_dgram_sendto_server(const struct test_opts *opts)
> +{
> + union {
> + struct sockaddr sa;
> + struct sockaddr_vm svm;
> + } addr = {
> + .svm = {
> + .svm_family = AF_VSOCK,
> + .svm_port = 1234,
> + .svm_cid = VMADDR_CID_ANY,
> + },
> + };
> + int fd;
> + int len = sizeof(addr.sa);
> +
> + fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
> +
> + if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
> + perror("bind");
> + exit(EXIT_FAILURE);
> + }
> +
> + /* Notify the client that the server is ready */
> + control_writeln("BIND");
> +
> + recvfrom_byte(fd, &addr.sa, &len, 1, 0);
> + printf("got message from cid:%d, port %u ", addr.svm.svm_cid,
> + addr.svm.svm_port);
> +
> + /* Wait for the client to finish */
> + control_expectln("DONE");
> +
> + close(fd);
> +}
> +
> +static void test_dgram_connect_client(const struct test_opts *opts)
> +{
> + union {
> + struct sockaddr sa;
> + struct sockaddr_vm svm;
> + } addr = {
> + .svm = {
> + .svm_family = AF_VSOCK,
> + .svm_port = 1234,
> + .svm_cid = opts->peer_cid,
> + },
> + };
> + int fd;
> + int ret;
> +
> + /* Wait for the server to be ready */
> + control_expectln("BIND");
> +
> + fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
> + if (fd < 0) {
> + perror("bind");
> + exit(EXIT_FAILURE);
> + }
> +
> + ret = connect(fd, &addr.sa, sizeof(addr.svm));
> + if (ret < 0) {
> + perror("connect");
> + exit(EXIT_FAILURE);
> + }
> +
> + send_byte(fd, 1, 0);
> +
> + /* Notify the server that the client has finished */
> + control_writeln("DONE");
> +
> + close(fd);
> +}
> +
> +static void test_dgram_connect_server(const struct test_opts *opts)
> +{
> + test_dgram_sendto_server(opts);
> +}
> +
> /* With the standard socket sizes, VMCI is able to support about 100
> * concurrent stream connections.
> */
> @@ -254,6 +363,77 @@ static void test_stream_multiconn_server(const struct test_opts *opts)
> close(fds[i]);
> }
>
> +static void test_dgram_multiconn_client(const struct test_opts *opts)
> +{
> + int fds[MULTICONN_NFDS];
> + int i;
> + union {
> + struct sockaddr sa;
> + struct sockaddr_vm svm;
> + } addr = {
> + .svm = {
> + .svm_family = AF_VSOCK,
> + .svm_port = 1234,
> + .svm_cid = opts->peer_cid,
> + },
> + };
> +
> + /* Wait for the server to be ready */
> + control_expectln("BIND");
> +
> + for (i = 0; i < MULTICONN_NFDS; i++) {
> + fds[i] = socket(AF_VSOCK, SOCK_DGRAM, 0);
> + if (fds[i] < 0) {
> + perror("socket");
> + exit(EXIT_FAILURE);
> + }
> + }
> +
> + for (i = 0; i < MULTICONN_NFDS; i++)
> + sendto_byte(fds[i], &addr.sa, sizeof(addr.svm), 1, 0);
> +
> + /* Notify the server that the client has finished */
> + control_writeln("DONE");
> +
> + for (i = 0; i < MULTICONN_NFDS; i++)
> + close(fds[i]);
> +}
> +
> +static void test_dgram_multiconn_server(const struct test_opts *opts)
> +{
> + union {
> + struct sockaddr sa;
> + struct sockaddr_vm svm;
> + } addr = {
> + .svm = {
> + .svm_family = AF_VSOCK,
> + .svm_port = 1234,
> + .svm_cid = VMADDR_CID_ANY,
> + },
> + };
> + int fd;
> + int len = sizeof(addr.sa);
> + int i;
> +
> + fd = socket(AF_VSOCK, SOCK_DGRAM, 0);
> +
> + if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
> + perror("bind");
> + exit(EXIT_FAILURE);
> + }
> +
> + /* Notify the client that the server is ready */
> + control_writeln("BIND");
> +
> + for (i = 0; i < MULTICONN_NFDS; i++)
> + recvfrom_byte(fd, &addr.sa, &len, 1, 0);
> +
> + /* Wait for the client to finish */
> + control_expectln("DONE");
> +
> + close(fd);
> +}
> +
> static void test_stream_msg_peek_client(const struct test_opts *opts)
> {
> int fd;
> @@ -646,6 +826,21 @@ static struct test_case test_cases[] = {
> .run_client = test_seqpacket_invalid_rec_buffer_client,
> .run_server = test_seqpacket_invalid_rec_buffer_server,
> },
> + {
> + .name = "SOCK_DGRAM client close",
> + .run_client = test_dgram_sendto_client,
> + .run_server = test_dgram_sendto_server,
> + },
> + {
> + .name = "SOCK_DGRAM client connect",
> + .run_client = test_dgram_connect_client,
> + .run_server = test_dgram_connect_server,
> + },
> + {
> + .name = "SOCK_DGRAM multiple connections",
> + .run_client = test_dgram_multiconn_client,
> + .run_server = test_dgram_multiconn_server,
> + },
> {},
> };
>
> --
> 2.35.1
>