Stefano Garzarella
2021-Apr-21 09:35 UTC
[RFC PATCH v8 17/19] vsock_test: add SOCK_SEQPACKET tests
On Tue, Apr 13, 2021 at 03:46:58PM +0300, Arseny Krasnov wrote:>This adds test of SOCK_SEQPACKET socket: it transfer data and >then tests 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 at kaspersky.com> >--- >v7 -> v8: > - Test for MSG_EOR flags now removed.Why did we remove it? Thanks, Stefano> > tools/testing/vsock/util.c | 32 +++++++++++++--- > tools/testing/vsock/util.h | 3 ++ > tools/testing/vsock/vsock_test.c | 63 ++++++++++++++++++++++++++++++++ > 3 files changed, 93 insertions(+), 5 deletions(-) > >diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c >index 93cbd6f603f9..2acbb7703c6a 100644 >--- a/tools/testing/vsock/util.c >+++ b/tools/testing/vsock/util.c >@@ -84,7 +84,7 @@ void vsock_wait_remote_close(int fd) > } > > /* Connect to <cid, port> and return the file descriptor. */ >-int vsock_stream_connect(unsigned int cid, unsigned int port) >+static int vsock_connect(unsigned int cid, unsigned int port, int type) > { > union { > struct sockaddr sa; >@@ -101,7 +101,7 @@ int vsock_stream_connect(unsigned int cid, unsigned int port) > > control_expectln("LISTENING"); > >- fd = socket(AF_VSOCK, SOCK_STREAM, 0); >+ fd = socket(AF_VSOCK, type, 0); > > timeout_begin(TIMEOUT); > do { >@@ -120,11 +120,21 @@ int vsock_stream_connect(unsigned int cid, unsigned int port) > return fd; > } > >+int vsock_stream_connect(unsigned int cid, unsigned int port) >+{ >+ return vsock_connect(cid, port, SOCK_STREAM); >+} >+ >+int vsock_seqpacket_connect(unsigned int cid, unsigned int port) >+{ >+ return vsock_connect(cid, port, SOCK_SEQPACKET); >+} >+ > /* Listen on <cid, port> and return the first incoming connection. The remote > * address is stored to clientaddrp. clientaddrp may be NULL. > */ >-int vsock_stream_accept(unsigned int cid, unsigned int port, >- struct sockaddr_vm *clientaddrp) >+static int vsock_accept(unsigned int cid, unsigned int port, >+ struct sockaddr_vm *clientaddrp, int type) > { > union { > struct sockaddr sa; >@@ -145,7 +155,7 @@ int vsock_stream_accept(unsigned int cid, unsigned int port, > int client_fd; > int old_errno; > >- fd = socket(AF_VSOCK, SOCK_STREAM, 0); >+ fd = socket(AF_VSOCK, type, 0); > > if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) { > perror("bind"); >@@ -189,6 +199,18 @@ int vsock_stream_accept(unsigned int cid, unsigned int port, > return client_fd; > } > >+int vsock_stream_accept(unsigned int cid, unsigned int port, >+ struct sockaddr_vm *clientaddrp) >+{ >+ return vsock_accept(cid, port, clientaddrp, SOCK_STREAM); >+} >+ >+int vsock_seqpacket_accept(unsigned int cid, unsigned int port, >+ struct sockaddr_vm *clientaddrp) >+{ >+ return vsock_accept(cid, port, clientaddrp, SOCK_SEQPACKET); >+} >+ > /* Transmit one byte and check the return value. > * > * expected_ret: >diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h >index e53dd09d26d9..a3375ad2fb7f 100644 >--- a/tools/testing/vsock/util.h >+++ b/tools/testing/vsock/util.h >@@ -36,8 +36,11 @@ struct test_case { > void init_signals(void); > unsigned int parse_cid(const char *str); > int vsock_stream_connect(unsigned int cid, unsigned int port); >+int vsock_seqpacket_connect(unsigned int cid, unsigned int port); > int vsock_stream_accept(unsigned int cid, unsigned int port, > struct sockaddr_vm *clientaddrp); >+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 recv_byte(int fd, int expected_ret, int flags); >diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c >index 5a4fb80fa832..ffec985fd36f 100644 >--- a/tools/testing/vsock/vsock_test.c >+++ b/tools/testing/vsock/vsock_test.c >@@ -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 +281,62 @@ static void test_stream_msg_peek_server(const struct test_opts *opts) > 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 +367,11 @@ static struct test_case test_cases[] = { > .run_client = test_stream_msg_peek_client, > .run_server = test_stream_msg_peek_server, > }, >+ { >+ .name = "SOCK_SEQPACKET send data MSG_TRUNC", >+ .run_client = test_seqpacket_msg_trunc_client, >+ .run_server = test_seqpacket_msg_trunc_server, >+ }, > {}, > }; > >-- >2.25.1 >