mDNS: Add basic support

1 files changed, 209 insertions, 0 deletions

diff --git a/testsuite/foobarserver/test_main.c b/testsuite/foobarserver/test_main.c
new file mode 100644
index 00000000..a1a20fdc
--- /dev/null
+++ b/testsuite/foobarserver/test_main.c
@@ -0,0 +1,209 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * 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 AUTHOR 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 AUTHOR 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 <mDNSEmbeddedAPI.h>
+#include <mDNSPosix.h>
+
+#include <sys/select.h>
+#include <sys/socket.h>
+
+#include <netinet/in.h>
+
+#include <assert.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#define TEST_NAME "LIBBSD FOOBAR SERVER"
+
+#define FOOBAR_PORT_BEGIN 10815
+
+#define FOOBAR_PORT_END 20815
+
+static mDNS mDNSStorage;
+
+static mDNS_PlatformSupport PlatformStorage;
+
+static void
+foobar_callback(mDNS *m, ServiceRecordSet *srs, mStatus status)
+{
+	const mDNSu8 *name = srs->RR_SRV.resrec.name->c;
+
+	switch (status) {
+	case mStatus_NoError:
+		printf("foobar server: name registered: %s\n", name);
+		break;
+	case mStatus_NameConflict:
+		printf("foobar server: name conflict: %s\n", name);
+		status = mDNS_RenameAndReregisterService(m, srs, mDNSNULL);
+		assert(status == mStatus_NoError);
+		break;
+	case mStatus_MemFree:
+		printf("foobar server: free: %s\n", name);
+		free(srs);
+		break;
+	default:
+		printf("foobar server: unexpected status: %s\n", name);
+		break;
+	}
+}
+
+static ServiceRecordSet *
+foobar_register(mDNSu16 port)
+{
+	ServiceRecordSet *srs;
+	mStatus status;
+	domainlabel name;
+	domainname type;
+	domainname domain;
+
+	srs = calloc(1, sizeof(*srs));
+	assert(srs != NULL);
+
+	MakeDomainLabelFromLiteralString(&name, "foobar");
+	MakeDomainNameFromDNSNameString(&type, "_foobar._tcp");
+	MakeDomainNameFromDNSNameString(&domain, "local.");
+
+	status = mDNS_RegisterService(&mDNSStorage, srs, &name, &type, &domain,
+	    NULL, mDNSOpaque16fromIntVal(port), NULL, 0, NULL, 0,
+	    mDNSInterface_Any, foobar_callback, srs, 0);
+	assert(status == mStatus_NoError);
+
+	return srs;
+}
+
+static void
+foobar_deregister(ServiceRecordSet *srs)
+{
+	mStatus status;
+
+	status = mDNS_DeregisterService(&mDNSStorage, srs);
+	assert(status == mStatus_NoError);
+}
+
+static void *
+foobar_thread(void *arg)
+{
+	static const char foobar[] = "FooBar!";
+
+	mDNSu16 port = FOOBAR_PORT_BEGIN;
+
+	while (1) {
+		ServiceRecordSet *srs;
+		struct sockaddr_in addr;
+		struct sockaddr_in addr2;
+		socklen_t addr2_len;
+		int sd;
+		int sd2;
+		int rv;
+		ssize_t n;
+
+		sd = socket(PF_INET, SOCK_STREAM, 0);
+		assert(sd >= 0);
+
+		memset(&addr, 0, sizeof(addr));
+		addr.sin_family = AF_INET;
+		addr.sin_port = htons(port);
+		addr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+		rv = bind(sd, (const struct sockaddr *) &addr, sizeof(addr));
+		assert(rv == 0);
+
+		rv = listen(sd, 0);
+		assert(rv == 0);
+
+		srs = foobar_register(port);
+
+		addr2_len = sizeof(addr2);
+		sd2 = accept(sd, (struct sockaddr *) &addr2, &addr2_len);
+		assert(sd2 >= 0);
+
+		n = write(sd2, &foobar[0], sizeof(foobar));
+		assert(n == (ssize_t) sizeof(foobar));
+
+		foobar_deregister(srs);
+
+		rv = close(sd2);
+		assert(rv == 0);
+
+		rv = close(sd);
+		assert(rv == 0);
+
+		if (port < FOOBAR_PORT_END) {
+			++port;
+		} else {
+			port = FOOBAR_PORT_BEGIN;
+		}
+	}
+
+	return NULL;
+}
+
+static void
+foobar_create_thread(void)
+{
+	int eno;
+	pthread_t t;
+
+	eno = pthread_create(&t, NULL, foobar_thread, NULL);
+	assert(eno == 0);
+}
+
+static void
+test_main(void)
+{
+	mStatus status;
+
+	status = mDNS_Init(&mDNSStorage, &PlatformStorage, mDNS_Init_NoCache,
+	    mDNS_Init_ZeroCacheSize, mDNS_Init_AdvertiseLocalAddresses,
+	    mDNS_Init_NoInitCallback, mDNS_Init_NoInitCallbackContext);
+	assert(status == mStatus_NoError);
+
+	foobar_create_thread();
+
+	while (1) {
+		struct timeval timeout = { .tv_sec = 0x3fffffff, .tv_usec = 0 };
+		sigset_t signals;
+		mDNSBool got_something;
+
+		mDNSPosixRunEventLoopOnce(&mDNSStorage, &timeout, &signals, &got_something);
+	}
+}
+
+#define DEFAULT_NETWORK_DHCPCD_ENABLE
+#define DEFAULT_NETWORK_DHCPCD_NO_DHCP_DISCOVERY
+#define DEFAULT_NETWORK_SHELL
+
+#include <rtems/bsd/test/default-network-init.h>