import code

1 files changed, 252 insertions, 0 deletions

diff --git a/jni/iodine/tests/dns.c b/jni/iodine/tests/dns.c
new file mode 100644
index 0000000..3d21e4c
--- /dev/null
+++ b/jni/iodine/tests/dns.c
@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) 2006-2009 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <check.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/stat.h>
+#include <arpa/nameser.h>
+
+#include "common.h"
+#include "dns.h"
+#include "encoding.h"
+#include "base32.h"
+#include "test.h"
+
+static void dump_packet(char *, size_t);
+
+static char query_packet[] =
+	"\x05\x39\x01\x00\x00\x01\x00\x00\x00\x00\x00\x01\x2D\x41\x6A\x62\x63"
+	"\x75\x79\x74\x63\x70\x65\x62\x30\x67\x71\x30\x6C\x74\x65\x62\x75\x78"
+	"\x67\x69\x64\x75\x6E\x62\x73\x73\x61\x33\x64\x66\x6F\x6E\x30\x63\x61"
+	"\x7A\x64\x62\x6F\x72\x71\x71\x04\x6B\x72\x79\x6F\x02\x73\x65\x00\x00"
+	"\x0A\x00\x01\x00\x00\x29\x10\x00\x00\x00\x80\x00\x00\x00";
+
+static char answer_packet[] =
+	"\x05\x39\x84\x00\x00\x01\x00\x01\x00\x00\x00\x00\x05\x73\x69\x6C\x6C"
+	"\x79\x04\x68\x6F\x73\x74\x02\x6F\x66\x06\x69\x6F\x64\x69\x6E\x65\x04"
+	"\x63\x6F\x64\x65\x04\x6B\x72\x79\x6F\x02\x73\x65\x00\x00\x0A\x00\x01"
+	"\xC0\x0C\x00\x0A\x00\x01\x00\x00\x00\x00\x00\x23\x74\x68\x69\x73\x20"
+	"\x69\x73\x20\x74\x68\x65\x20\x6D\x65\x73\x73\x61\x67\x65\x20\x74\x6F"
+	"\x20\x62\x65\x20\x64\x65\x6C\x69\x76\x65\x72\x65\x64";
+
+static char answer_packet_high_trans_id[] =
+	"\x85\x39\x84\x00\x00\x01\x00\x01\x00\x00\x00\x00\x05\x73\x69\x6C\x6C"
+	"\x79\x04\x68\x6F\x73\x74\x02\x6F\x66\x06\x69\x6F\x64\x69\x6E\x65\x04"
+	"\x63\x6F\x64\x65\x04\x6B\x72\x79\x6F\x02\x73\x65\x00\x00\x0A\x00\x01"
+	"\xC0\x0C\x00\x0A\x00\x01\x00\x00\x00\x00\x00\x23\x74\x68\x69\x73\x20"
+	"\x69\x73\x20\x74\x68\x65\x20\x6D\x65\x73\x73\x61\x67\x65\x20\x74\x6F"
+	"\x20\x62\x65\x20\x64\x65\x6C\x69\x76\x65\x72\x65\x64";
+static char *msgData = "this is the message to be delivered";
+static char *topdomain = "kryo.se";
+
+static char *innerData = "HELLO this is the test data";
+
+START_TEST(test_encode_query)
+{
+	char buf[512];
+	char resolv[512];
+	struct query q;
+	struct encoder *enc;
+	char *d;
+	size_t len;
+	size_t enclen;
+	int ret;
+
+	enclen = sizeof(resolv);
+	memset(&buf, 0, sizeof(buf));
+	memset(&resolv, 0, sizeof(resolv));
+	memset(&q, 0, sizeof(struct query));
+	q.type = T_NULL;
+	q.id = 1337;
+	d = resolv;
+	enc = get_base32_encoder();
+
+	*d++ = 'A';
+	enc->encode(d, &enclen, innerData, strlen(innerData));
+	d = resolv + strlen(resolv);
+	if (*d != '.') {
+		*d++ = '.';
+	}
+	strcpy(d, topdomain);
+	len = sizeof(buf);
+	ret = dns_encode(buf, len, &q, QR_QUERY, resolv, strlen(resolv));
+	len = sizeof(query_packet) - 1; /* Skip extra null character */
+
+	if (strncmp(query_packet, buf, sizeof(query_packet)) || ret != len) {
+		printf("\n");
+		dump_packet(query_packet, len);
+		dump_packet(buf, ret);
+	}
+	fail_unless(strncmp(query_packet, buf, sizeof(query_packet)) == 0, "Did not compile expected packet");
+	fail_unless(ret == len, "Bad packet length: %d, expected %d", ret, len);
+}
+END_TEST
+
+START_TEST(test_decode_query)
+{
+	char buf[512];
+	char *domain;
+	struct query q;
+	struct encoder *enc;
+	size_t len;
+
+	memset(&q, 0, sizeof(struct query));
+	memset(&buf, 0, sizeof(buf));
+	q.id = 0;
+	len = sizeof(query_packet) - 1;
+	enc = get_base32_encoder();
+
+	dns_decode(buf, sizeof(buf), &q, QR_QUERY, query_packet, len);
+	domain = strstr(q.name, topdomain);
+	len = sizeof(buf);
+	unpack_data(buf, len, &(q.name[1]), (int) (domain - q.name) - 1, enc);
+
+	fail_unless(strncmp(buf, innerData, strlen(innerData)) == 0, "Did not extract expected host: '%s'", buf);
+	fail_unless(strlen(buf) == strlen(innerData), "Bad host length: %d, expected %d: '%s'", strlen(buf), strlen(innerData), buf);
+}
+END_TEST
+
+START_TEST(test_encode_response)
+{
+	char buf[512];
+	char *host = "silly.host.of.iodine.code.kryo.se";
+	struct query q;
+	int len;
+	int ret;
+
+	len = sizeof(buf);
+	memset(&buf, 0, sizeof(buf));
+	memset(&q, 0, sizeof(struct query));
+	strncpy(q.name, host, strlen(host));
+	q.type = T_NULL;
+	q.id = 1337;
+
+	ret = dns_encode(buf, len, &q, QR_ANSWER, msgData, strlen(msgData));
+	len = sizeof(answer_packet) - 1; /* Skip extra null character */
+
+	fail_unless(strncmp(answer_packet, buf, sizeof(answer_packet)) == 0, "Did not compile expected packet");
+	fail_unless(ret == len, "Bad packet length: %d, expected %d", ret, len);
+}
+END_TEST
+
+START_TEST(test_decode_response)
+{
+	char buf[512];
+	struct query q;
+	int len;
+	int ret;
+
+	len = sizeof(buf);
+	memset(&buf, 0, sizeof(buf));
+
+	ret = dns_decode(buf, len, &q, QR_ANSWER, answer_packet, sizeof(answer_packet)-1);
+	fail_unless(strncmp(msgData, buf, sizeof(msgData)) == 0, "Did not extract expected data");
+	fail_unless(ret == strlen(msgData), "Bad data length: %d, expected %d", ret, strlen(msgData));
+	fail_unless(q.id == 0x0539);
+}
+END_TEST
+
+START_TEST(test_decode_response_with_high_trans_id)
+{
+	char buf[512];
+	struct query q;
+	int len;
+	int ret;
+
+	len = sizeof(buf);
+	memset(&buf, 0, sizeof(buf));
+
+	ret = dns_decode(buf, len, &q, QR_ANSWER, answer_packet_high_trans_id, sizeof(answer_packet_high_trans_id)-1);
+	fail_unless(strncmp(msgData, buf, sizeof(msgData)) == 0, "Did not extract expected data");
+	fail_unless(ret == strlen(msgData), "Bad data length: %d, expected %d", ret, strlen(msgData));
+	fail_unless(q.id == 0x8539, "q.id was %08X instead of %08X!", q.id, 0x8539);
+}
+END_TEST
+
+START_TEST(test_get_id_short_packet)
+{
+	char buf[5];
+	int len;
+	unsigned short id;
+
+	len = sizeof(buf);
+	memset(&buf, 5, sizeof(buf));
+
+	id = dns_get_id(buf, len);
+	fail_unless(id == 0);
+}
+END_TEST
+
+START_TEST(test_get_id_low)
+{
+	unsigned short id;
+
+	id = dns_get_id(answer_packet, sizeof(answer_packet));
+	fail_unless(id == 1337);
+}
+END_TEST
+
+START_TEST(test_get_id_high)
+{
+	unsigned short id;
+
+	id = dns_get_id(answer_packet_high_trans_id, sizeof(answer_packet_high_trans_id));
+	fail_unless(id == 0x8539);
+}
+END_TEST
+
+static void
+dump_packet(char *buf, size_t len)
+{
+	int pos;
+
+	for (pos = 0; pos < len; pos++) {
+		printf("\\x%02X", (unsigned char) buf[pos]);
+	}
+	printf("\n");
+	for (pos = 0; pos < len; pos++) {
+		if (isalnum((unsigned char) buf[pos])) {
+			printf(" %c  ", (unsigned char) buf[pos]);
+		} else {
+			printf("    ");
+		}
+	}
+	printf("\n");
+}
+
+TCase *
+test_dns_create_tests()
+{
+	TCase *tc;
+
+	tc = tcase_create("Dns");
+	tcase_add_test(tc, test_encode_query);
+	tcase_add_test(tc, test_decode_query);
+	tcase_add_test(tc, test_encode_response);
+	tcase_add_test(tc, test_decode_response);
+	tcase_add_test(tc, test_decode_response_with_high_trans_id);
+	tcase_add_test(tc, test_get_id_short_packet);
+	tcase_add_test(tc, test_get_id_low);
+	tcase_add_test(tc, test_get_id_high);
+
+	return tc;
+}