+/* $OpenBSD: t_recvmmsg.c,v 1.2 2022/09/11 20:51:44 mbuhl Exp $ */
+/* $NetBSD: t_recvmmsg.c,v 1.4 2018/08/21 10:39:21 christos Exp $ */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jared McNeill and Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+
+#include "atf-c.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+
+#include <string.h>
+#include <time.h>
+#include <stdint.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sched.h>
+
+#define BUFSIZE 65536
+#define NPKTS 50
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+static int debug;
+static volatile sig_atomic_t rdied;
+
+static void
+handle_sigchld(__unused int pid)
+{
+
+ rdied = 1;
+}
+
+ATF_TC(recvmmsg_basic);
+ATF_TC_HEAD(recvmmsg_basic, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "A basic test of recvmmsg(2)");
+}
+
+ATF_TC_BODY(recvmmsg_basic, tc)
+{
+ int fd[2], error, i, cnt;
+ uint8_t *buf;
+ struct mmsghdr *mmsghdr;
+ struct iovec *iov;
+ unsigned int mmsgcnt, n;
+ int status;
+ off_t off;
+ uint8_t DGRAM[1316] = { 0, 2, 3, 4, 5, 6, 7, 8, 9, };
+ struct sigaction sa;
+ ssize_t overf = 0;
+
+ error = socketpair(AF_UNIX, SOCK_DGRAM, 0, fd);
+ ATF_REQUIRE_MSG(error != -1, "socketpair failed (%s)", strerror(errno));
+
+ buf = malloc(BUFSIZE);
+ ATF_REQUIRE_MSG(buf != NULL, "malloc failed (%s)", strerror(errno));
+
+ mmsgcnt = BUFSIZE / sizeof(DGRAM);
+ mmsghdr = malloc(sizeof(*mmsghdr) * mmsgcnt);
+ ATF_REQUIRE_MSG(mmsghdr != NULL, "malloc failed (%s)", strerror(errno));
+ iov = malloc(sizeof(*iov) * mmsgcnt);
+ ATF_REQUIRE_MSG(iov != NULL, "malloc failed (%s)", strerror(errno));
+
+ for (off = 0, n = 0; n < mmsgcnt; n++) {
+ iov[n].iov_base = buf + off;
+ iov[n].iov_len = sizeof(DGRAM);
+ off += iov[n].iov_len;
+ mmsghdr[n].msg_hdr.msg_iov = &iov[n];
+ mmsghdr[n].msg_hdr.msg_iovlen = 1;
+ mmsghdr[n].msg_hdr.msg_name = NULL;
+ mmsghdr[n].msg_hdr.msg_namelen = 0;
+ }
+
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = &handle_sigchld;
+ sigemptyset(&sa.sa_mask);
+ error = sigaction(SIGCHLD, &sa, 0);
+ ATF_REQUIRE_MSG(error != -1, "sigaction failed (%s)",
+ strerror(errno));
+
+ switch (fork()) {
+ case -1:
+ ATF_REQUIRE_MSG(0, "fork failed (%s)", strerror(errno));
+ break;
+
+ case 0:
+ n = NPKTS;
+ if (debug)
+ printf("waiting for %u messages (max %u per syscall)\n", n,
+ mmsgcnt);
+ while (n > 0) {
+ struct timespec ts = { 1, 0 };
+ cnt = recvmmsg(fd[1], mmsghdr, min(mmsgcnt, n),
+ MSG_WAITALL, &ts);
+ if (cnt == -1 && errno == ENOBUFS) {
+ overf++;
+ if (debug)
+ printf("receive buffer overflowed"
+ " (%zu)\n",overf);
+ continue;
+ }
+ ATF_REQUIRE_MSG(cnt != -1, "recvmmsg failed (%s)",
+ strerror(errno));
+ ATF_REQUIRE_MSG(cnt != 0, "recvmmsg timeout");
+ if (debug)
+ printf("recvmmsg: got %u messages\n", cnt);
+ for (i = 0; i < cnt; i++) {
+ ATF_CHECK_EQ_MSG(mmsghdr[i].msg_len,
+ sizeof(DGRAM), "packet length");
+ ATF_CHECK_EQ_MSG(
+ ((uint8_t *)iov[i].iov_base)[0],
+ NPKTS - n + i, "packet contents");
+ }
+ n -= cnt;
+ }
+ if (debug)
+ printf("done!\n");
+ exit(0);
+ /*NOTREACHED*/
+ default:
+ sched_yield();
+
+ for (n = 0; n < NPKTS; n++) {
+ if (debug)
+ printf("sending packet %u/%u...\n", (n+1),
+ NPKTS);
+ do {
+ if (rdied)
+ break;
+ DGRAM[0] = n;
+ error = send(fd[0], DGRAM, sizeof(DGRAM), 0);
+ } while (error == -1 && errno == ENOBUFS);
+ ATF_REQUIRE_MSG(error != -1, "send failed (%s)",
+ strerror(errno));
+ }
+ error = wait(&status);
+ ATF_REQUIRE_MSG(error != -1, "wait failed (%s)",
+ strerror(errno));
+ ATF_REQUIRE_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 0,
+ "receiver died");
+ break;
+ }
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, recvmmsg_basic);
+
+ return atf_no_error();
+}
+/* $OpenBSD: t_sendmmsg.c,v 1.2 2022/09/11 20:51:44 mbuhl Exp $ */
+/* $NetBSD: t_sendmmsg.c,v 1.3 2019/03/16 21:46:43 christos Exp $ */
+
+/*-
+ * Copyright (c) 2018 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Christos Zoulas.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+
+#include "atf-c.h"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+
+#include <string.h>
+#include <time.h>
+#include <stdint.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sched.h>
+
+#define BUFSIZE 65536
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+static int debug;
+static volatile sig_atomic_t rdied;
+
+static void
+handle_sigchld(__unused int pid)
+{
+
+ rdied = 1;
+}
+
+ATF_TC(sendmmsg_basic);
+ATF_TC_HEAD(sendmmsg_basic, tc)
+{
+ atf_tc_set_md_var(tc, "descr", "A basic test of sendmmsg(2)");
+}
+
+static void
+setsock(int fd, int type)
+{
+ int buflen = BUFSIZE;
+ socklen_t socklen = sizeof(buflen);
+
+ ATF_REQUIRE_MSG(setsockopt(fd, SOL_SOCKET, type,
+ &buflen, socklen) != -1, "%s (%s)",
+ type == SO_RCVBUF ? "rcv" : "snd", strerror(errno));
+}
+
+ATF_TC_BODY(sendmmsg_basic, tc)
+{
+ int fd[2], error, cnt;
+ uint8_t *buf;
+ struct mmsghdr *mmsghdr;
+ struct iovec *iov;
+ unsigned int mmsgcnt, n;
+ int status;
+ off_t off;
+ uint8_t DGRAM[1316] = { 0, 2, 3, 4, 5, 6, 7, 8, 9, };
+ uint8_t rgram[sizeof(DGRAM)];
+ struct sigaction sa;
+ ssize_t overf = 0;
+
+ error = socketpair(AF_UNIX, SOCK_DGRAM, 0, fd);
+ ATF_REQUIRE_MSG(error != -1, "socketpair failed (%s)", strerror(errno));
+
+ buf = malloc(BUFSIZE);
+ ATF_REQUIRE_MSG(buf != NULL, "malloc failed (%s)", strerror(errno));
+
+ setsock(fd[1], SO_SNDBUF);
+// setsock(fd[0], SO_RCVBUF);
+
+ mmsgcnt = BUFSIZE / sizeof(DGRAM);
+ mmsghdr = calloc(mmsgcnt, sizeof(*mmsghdr));
+ ATF_REQUIRE_MSG(mmsghdr != NULL, "malloc failed (%s)", strerror(errno));
+ iov = malloc(sizeof(*iov) * mmsgcnt);
+ ATF_REQUIRE_MSG(iov != NULL, "malloc failed (%s)", strerror(errno));
+
+ for (off = 0, n = 0; n < mmsgcnt; n++) {
+ iov[n].iov_base = buf + off;
+ memcpy(iov[n].iov_base, DGRAM, sizeof(DGRAM));
+ *(buf + off) = n;
+ iov[n].iov_len = sizeof(DGRAM);
+ off += iov[n].iov_len;
+ mmsghdr[n].msg_hdr.msg_iov = &iov[n];
+ mmsghdr[n].msg_hdr.msg_iovlen = 1;
+ mmsghdr[n].msg_hdr.msg_name = NULL;
+ mmsghdr[n].msg_hdr.msg_namelen = 0;
+ }
+
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = &handle_sigchld;
+ sigemptyset(&sa.sa_mask);
+ error = sigaction(SIGCHLD, &sa, 0);
+ ATF_REQUIRE_MSG(error != -1, "sigaction failed (%s)",
+ strerror(errno));
+
+ switch (fork()) {
+ case -1:
+ ATF_REQUIRE_MSG(0, "fork failed (%s)", strerror(errno));
+ break;
+ case 0:
+ sched_yield();
+ if (debug)
+ printf("sending %u messages (max %u per syscall)\n", n,
+ mmsgcnt);
+ for (n = 0; n < mmsgcnt;) {
+ if (debug)
+ printf("sending packet %u/%u...\n", n,
+ mmsgcnt);
+#ifdef __OpenBSD__
+ int npkt = min(1024, mmsgcnt - n);
+#else
+ // XXX: ENOBUFS bug, on the receive side!!!
+ // in npkt = min(mmsgsize, mmsgcnt - n);
+ int npkt = min(3, mmsgcnt - n), a;
+ do {
+ a = 0;
+ ATF_REQUIRE(ioctl(fd[1], FIONSPACE, &a) != -1);
+ printf("1 %d\n", a);
+ ATF_REQUIRE(ioctl(fd[0], FIONSPACE, &a) != -1);
+ printf("0 %d\n", a);
+ } while ((size_t)a < sizeof(DGRAM));
+#endif
+ cnt = sendmmsg(fd[1], mmsghdr + n, npkt, 0);
+ if (cnt == -1 && errno == ENOBUFS) {
+ overf++;
+ if (debug)
+ printf("send buffer overflowed"
+ " (%zu)\n",overf);
+ if (overf > 100)
+ exit(1);
+ sched_yield();
+ sched_yield();
+ sched_yield();
+ continue;
+ }
+ ATF_REQUIRE_MSG(cnt != -1, "sendmmsg %u failed (%s)",
+ n, strerror(errno));
+ if (debug)
+ printf("sendmmsg: sent %u messages\n", cnt);
+ n += cnt;
+ sched_yield();
+ sched_yield();
+ sched_yield();
+ }
+ if (debug)
+ printf("done!\n");
+ exit(0);
+ /*NOTREACHED*/
+ default:
+ for (n = 0; n < mmsgcnt; n++) {
+ if (debug)
+ printf("receiving packet %u/%u...\n", n,
+ mmsgcnt);
+ do {
+ if (rdied)
+ break;
+ cnt = recv(fd[0], rgram, sizeof(rgram), 0);
+ ATF_REQUIRE_MSG(cnt != -1 || errno != ENOBUFS,
+ "recv failed (%s)", strerror(errno));
+ ATF_CHECK_EQ_MSG(cnt, sizeof(rgram),
+ "packet length");
+ ATF_CHECK_EQ_MSG(rgram[0], n,
+ "number %u != %u", rgram[0], n);
+ ATF_REQUIRE_MSG(memcmp(rgram + 1, DGRAM + 1,
+ sizeof(rgram) - 1) == 0, "bad data");
+ } while (cnt == -1 && errno == ENOBUFS);
+ }
+ error = wait(&status);
+ ATF_REQUIRE_MSG(error != -1, "wait failed (%s)",
+ strerror(errno));
+ ATF_REQUIRE_MSG(WIFEXITED(status) && WEXITSTATUS(status) == 0,
+ "receiver died");
+ break;
+ }
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, sendmmsg_basic);
+
+ return atf_no_error();
+}
projects / openbsd / commitdiff