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[src/trunk]: src/tests/net/net add a test for v4 mapped addresses



details:   https://anonhg.NetBSD.org/src/rev/1bc87aa04e71
branches:  trunk
changeset: 973661:1bc87aa04e71
user:      christos <christos%NetBSD.org@localhost>
date:      Mon Jul 06 18:45:25 2020 +0000

description:
add a test for v4 mapped addresses

diffstat:

 tests/net/net/Makefile   |    5 +-
 tests/net/net/t_mapped.c |  320 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 324 insertions(+), 1 deletions(-)

diffs (truncated from 348 to 300 lines):

diff -r cbb8d79b699d -r 1bc87aa04e71 tests/net/net/Makefile
--- a/tests/net/net/Makefile    Mon Jul 06 18:30:48 2020 +0000
+++ b/tests/net/net/Makefile    Mon Jul 06 18:45:25 2020 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.23 2020/03/01 18:08:16 christos Exp $
+# $NetBSD: Makefile,v 1.24 2020/07/06 18:45:25 christos Exp $
 #
 
 .include <bsd.own.mk>
@@ -6,6 +6,7 @@
 TESTSDIR=      ${TESTSBASE}/net/net
 
 TESTS_C=       t_unix
+TESTS_C+=      t_mapped
 TESTS_C+=      t_tcp
 TESTS_C+=      t_udp
 TESTS_C+=      t_pktinfo
@@ -26,4 +27,6 @@
 LDADD.t_raw+=  -lrumpnet_local -lrumpnet_netinet -lrumpnet_net
 LDADD.t_raw+=  -lrumpnet ${LIBRUMPBASE}
 
+LDADD.t_mapped+=       -lutil
+
 .include <bsd.test.mk>
diff -r cbb8d79b699d -r 1bc87aa04e71 tests/net/net/t_mapped.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/net/net/t_mapped.c  Mon Jul 06 18:45:25 2020 +0000
@@ -0,0 +1,320 @@
+/*     $NetBSD: t_mapped.c,v 1.1 2020/07/06 18:45:25 christos Exp $    */
+
+/*-
+ * Copyright (c) 2020 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.
+ */
+
+#define _GNU_SOURCE
+
+#include <sys/cdefs.h>
+#ifdef __RCSID
+__RCSID("$Id: t_mapped.c,v 1.1 2020/07/06 18:45:25 christos Exp $");
+#endif
+
+#include <sys/param.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <string.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <time.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <err.h>
+#include <stdlib.h>
+#include <signal.h>
+#include "util.h"
+
+#include "test.h"
+
+static char mymsg[] = "hi mom!";
+
+static void
+print(const char *msg, const struct sockaddr *addr)
+{
+       char buf[1024];
+
+       sockaddr_snprintf(buf, sizeof(buf), "%a:%p", addr);
+       printf("%s: %s\n", msg, buf);
+}
+
+static int
+mksocket(int sfam)
+{
+       int fd = socket(sfam, SOCK_STREAM, 0);
+       if (fd ==  -1)
+               FAIL("socket");
+       if (sfam != AF_INET6)
+               return fd;
+       int f = 0;
+#if 0
+       /* crashes the kernel, should not be allowed kernel only? */
+       if (setsockopt(fd, IPPROTO_IPV6, 24 /* IPV6_2292RTHDR */,
+           &f, sizeof(f)) == -1)
+               FAIL("setsockopt");
+#endif
+       if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &f, sizeof(f)) == -1)
+               FAIL("setsockopt");
+       return fd;
+fail:
+       return -1;
+}
+
+static socklen_t
+mkserver(int sfam, struct sockaddr_storage *ss)
+{
+       struct sockaddr_in *sin;
+       struct sockaddr_in6 *sin6;
+
+       memset(ss, 0, sizeof(*ss));
+       ss->ss_family = sfam;
+       switch (sfam) {
+       case AF_INET:
+               sin = (struct sockaddr_in *)ss;
+               sin->sin_port = htons(12345);
+#ifdef BSD4_4
+               sin->sin_len = sizeof(*sin);
+#endif
+               return sizeof(*sin);
+       case AF_INET6:
+               sin6 = (struct sockaddr_in6 *)ss;
+               sin6->sin6_port = htons(12345);
+#ifdef BSD4_4
+               sin6->sin6_len = sizeof(*sin6);
+#endif
+               return sizeof(*sin6);
+       default:
+               FAIL("bad family");
+       }
+fail:
+       return -1;
+}
+
+#if 0
+static const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
+#endif
+static socklen_t
+mkclient(int sfam, struct sockaddr_storage *ss)
+{
+       struct sockaddr_in *sin;
+       struct sockaddr_in6 *sin6;
+
+       memset(ss, 0, sizeof(*ss));
+       ss->ss_family = sfam;
+       switch (sfam) {
+       case AF_INET:
+               sin = (struct sockaddr_in *)ss;
+               sin->sin_port = htons(12345);
+#ifdef BSD4_4
+               sin->sin_len = sizeof(*sin);
+#endif
+               sin->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+               return sizeof(*sin);
+       case AF_INET6:
+               sin6 = (struct sockaddr_in6 *)ss;
+               sin6->sin6_port = htons(12345);
+#ifdef BSD4_4
+               sin6->sin6_len = sizeof(*sin6);
+#endif
+#if 1
+               sin6->sin6_addr = in6addr_loopback;
+#else
+               struct in6_addr *a = &sin6->sin6_addr;
+               a->__u6_addr.__u6_addr32[0] == 0;
+               a->__u6_addr.__u6_addr32[1] == 0;
+               a->__u6_addr.__u6_addr32[2] == ntohl(0x0000ffff);
+               a->__u6_addr.__u6_addr32[3] == ntohl(INADDR_LOOPBACK);
+#endif
+               return sizeof(*sin6);
+       default:
+               FAIL("bad family");
+       }
+fail:
+       return -1;
+}
+
+static int
+test(int forkit, int sfam, int cfam)
+{
+       int sfd = -1, cfd = -1, afd = -1;
+       pid_t sfdpid, cfdpid;
+       struct sockaddr_storage saddr, caddr, paddr;
+       socklen_t slen, clen, plen;
+
+       sfdpid = cfdpid = getpid();
+
+       sfd = mksocket(sfam);
+       slen = mkserver(sfam, &saddr);
+
+       if (bind(sfd, (struct sockaddr *)&saddr, slen) == -1) {
+               FAIL("bind");
+       }
+
+       if (listen(sfd, SOMAXCONN) == -1)
+               FAIL("listen");
+
+       if (forkit) {
+               switch (cfdpid = fork()) {
+               case 0: /* child */
+                       sfdpid = getppid();
+                       cfdpid = getpid();
+                       break;
+               case -1:
+                       FAIL("fork");
+               default:
+                       break;
+               }
+       }
+
+       if (cfdpid == getpid()) {
+               cfd = mksocket(cfam);
+               clen = mkclient(cfam, &caddr);
+
+               if (connect(cfd, (const struct sockaddr *)&caddr, clen) == -1)
+                       FAIL("connect");
+       }
+
+       if (sfdpid == getpid()) {
+               plen = sizeof(paddr);
+               afd = accept(sfd, (struct sockaddr *)&paddr, &plen);
+               if (afd == -1)
+                       FAIL("accept");
+
+               print("peer", (const struct sockaddr *)&paddr);
+       }
+
+       if (cfdpid == getpid()) {
+               if (write(cfd, mymsg, sizeof(mymsg)) != sizeof(mymsg))
+                       FAIL("write");
+               (void)close(cfd);
+       }
+
+       if (sfdpid == getpid()) {
+               char buf[1024];
+               if (read(afd, buf, sizeof(mymsg)) != sizeof(mymsg))
+                       FAIL("write");
+
+               if (strcmp(buf, mymsg) != 0)
+                       FAIL("compare");
+
+               (void)close(afd);
+               (void)close(sfd);
+               if (forkit && waitpid(cfdpid, NULL, 0) == -1)
+                       FAIL("waitpid");
+       }
+       (void)close(cfd);
+
+       return 0;
+fail:
+       if (sfdpid == getpid()) {
+               (void)close(afd);
+               (void)close(sfd);
+       }
+       if (cfdpid == getpid()) {
+               (void)close(cfd);
+       }
+       return -1;
+}
+
+#ifndef TEST
+
+ATF_TC(mapped_4_4);
+ATF_TC_HEAD(mapped_4_4, tc)
+{
+
+       atf_tc_set_md_var(tc, "descr", "Check AF_INET <- AF_INET connections");
+}
+
+ATF_TC_BODY(mapped_4_4, tc)
+{
+       test(0, AF_INET, AF_INET);
+}
+
+ATF_TC(mapped_6_4);
+ATF_TC_HEAD(mapped_6_4, tc)
+{
+
+       atf_tc_set_md_var(tc, "descr", "Check AF_INET6 <- AF_INET connections");
+}
+
+ATF_TC_BODY(mapped_6_4, tc)
+{
+       test(0, AF_INET6, AF_INET);
+}



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