arphole: New test

Makefile

@@ -1105,6 +1105,17 @@ LIB_C_FILES += freebsd/usr.bin/netstat/unix.c
 freebsd/usr.bin/netstat/unix.o: freebsd/usr.bin/netstat/unix.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) -DINET6 -c $< -o $@
 
+TEST_ARPHOLE = testsuite/arphole/arphole.exe
+TEST_ARPHOLE_O_FILES =
+TEST_ARPHOLE_D_FILES =
+TEST_ARPHOLE_O_FILES += testsuite/arphole/test_main.o
+TEST_ARPHOLE_D_FILES += testsuite/arphole/test_main.d
+$(TEST_ARPHOLE): $(TEST_ARPHOLE_O_FILES) $(LIB)
+	$(LINK.c) -Wl,-Map,testsuite/arphole/arphole.map $^ -lm -lz -o $@
+NET_TESTS += $(TEST_ARPHOLE)
+O_FILES += $(TEST_ARPHOLE_O_FILES)
+D_FILES += $(TEST_ARPHOLE_D_FILES)
+
 TEST_UNIX01 = testsuite/unix01/unix01.exe
 TEST_UNIX01_O_FILES =
 TEST_UNIX01_D_FILES =

freebsd-to-rtems.py

@@ -2429,6 +2429,7 @@ in_cksum.addCPUDependentSourceFiles(
 )
 
 tests = Module('tests')
+tests.addTest('arphole', ['test_main'], runTest = False, netTest = True)
 tests.addTest('unix01', ['test_main'])
 tests.addTest('ftpd01', ['test_main'], netTest = True)
 tests.addTest('ping01', ['test_main'], netTest = True)

testsuite/arphole/test_main.c

@@ -0,0 +1,114 @@
+/**
+ * @file
+ *
+ * This test program processes all ARP requests and claims every IP address it
+ * notices.  Use with care in production networks.
+ */
+
+/*
+ * 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 <sys/types.h>
+
+#include <net/if.h>
+#include <net/if_arp.h>
+#include <net/ethernet.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <assert.h>
+#include <ifaddrs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <rtems/bsd/util.h>
+
+#define TEST_NAME "LIBBSD ARP HOLE"
+
+typedef struct {
+	struct ether_header eh;
+	struct arphdr arh;
+	uint8_t sha[ETHER_ADDR_LEN];
+	uint32_t spa;
+	uint8_t tha[ETHER_ADDR_LEN];
+	uint32_t tpa;
+} __packed arp_request;
+
+static void
+arp_processor(void *arg, int fd, const uint8_t eaddr[ETHER_ADDR_LEN],
+    const struct arphdr *ar, uint32_t spa, uint32_t tpa,
+    const uint8_t *sha, const uint8_t *tha)
+{
+	if (ar->ar_op == htons(ARPOP_REQUEST) && spa == htonl(INADDR_ANY) &&
+	    tpa != htonl(INADDR_ANY)) {
+		arp_request arr;
+
+		memcpy(&arr.eh.ether_shost[0], &eaddr[0], ETHER_HDR_LEN);
+		memcpy(&arr.eh.ether_dhost[0], sha, ETHER_HDR_LEN);
+		arr.eh.ether_type = htons(ETHERTYPE_ARP);
+
+		arr.arh.ar_hrd = htons(ARPHRD_ETHER);
+		arr.arh.ar_pro = htons(ETHERTYPE_IP);
+		arr.arh.ar_hln = ETHER_ADDR_LEN;
+		arr.arh.ar_pln = sizeof(spa);
+		arr.arh.ar_op = htons(ARPOP_REPLY);
+
+		memcpy(&arr.sha[0], &eaddr[0], ETHER_ADDR_LEN);
+		arr.spa = tpa;
+		memcpy(&arr.tha[0], sha, ETHER_ADDR_LEN);
+		arr.tpa = htonl(INADDR_ANY);
+
+		write(fd, &arr, sizeof(arr));
+	}
+}
+
+static void
+test_main(void)
+{
+	char ifnamebuf[IF_NAMESIZE];
+	char *ifname;
+	rtems_bsd_arp_processor_context *ctx;
+
+	ifname = if_indextoname(1, &ifnamebuf[0]);
+	assert(ifname != NULL);
+
+	ctx = rtems_bsd_arp_processor_create(ifname);
+	assert(ctx != NULL);
+
+	while (1) {
+		rtems_bsd_arp_processor_process(ctx, arp_processor, NULL);
+	}
+}
+
+#define DEFAULT_NETWORK_NO_STATIC_IFCONFIG
+
+#include <rtems/bsd/test/default-network-init.h>