unit: Add information element parser unit test cases

Makefile.am

@@ -49,7 +49,7 @@ client_iwctl_LDADD = ell/libell-internal.la
 
 noinst_PROGRAMS =
 
-unit_tests = unit/test-pbkdf2-sha1 unit/test-prf-sha1
+unit_tests = unit/test-pbkdf2-sha1 unit/test-prf-sha1 unit/test-ie
 
 if MAINTAINER_MODE
 noinst_PROGRAMS += $(unit_tests)
@@ -63,6 +63,9 @@ unit_test_prf_sha1_SOURCES = unit/test-prf-sha1.c \
 					src/sha1.h src/sha1.c
 unit_test_prf_sha1_LDADD = ell/libell-internal.la
 
+unit_test_ie_SOURCES = unit/test-ie.c src/ie.h src/ie.c
+unit_test_ie_LDADD = ell/libell-internal.la
+
 TESTS = $(unit_tests)
 
 AM_CFLAGS = -fvisibility=hidden

unit/test-ie.c

@@ -0,0 +1,123 @@
+/*
+ *
+ *  Wireless daemon for Linux
+ *
+ *  Copyright (C) 2014  Intel Corporation. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <ell/ell.h>
+
+#include "src/ie.h"
+
+struct test_data {
+	unsigned int num_ie;
+	unsigned int len;
+	unsigned char *buf;
+};
+
+struct ie {
+	unsigned char type;
+	unsigned char len;
+	unsigned char value[];
+} __attribute__ ((packed));
+
+static void ie_test(const void *data)
+{
+	const struct test_data *test = data;
+	struct ie_tlv_iter iter;
+	struct ie *ie;
+	int count = 0, pos = 0;
+
+	ie_tlv_iter_init(&iter, test->buf, test->len);
+
+	while (ie_tlv_iter_next(&iter)) {
+
+		ie = (struct ie *)&test->buf[pos];
+		printf("IE %d [%d/%d/%s]\n", count, ie->type, ie->len,
+			l_util_hexstring(&test->buf[pos+2], ie->len));
+
+		assert(iter.tag == test->buf[pos++]);
+		assert(iter.len == test->buf[pos++]);
+		assert(!memcmp(iter.data, test->buf + pos, iter.len));
+		pos += ie->len;
+
+		count++;
+	}
+
+	assert(count == test->num_ie);
+}
+
+static struct ie ie_ssid = {
+	.type = IE_TYPE_SSID,
+	.len = 10,
+	.value = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' },
+};
+
+static struct ie ie_supp_channels = {
+	.type = IE_TYPE_SUPPORTED_CHANNELS,
+	.len = 2,
+	.value = "\x01\x02",
+};
+
+static struct ie ie_qos = {
+	.type = IE_TYPE_QOS_CAPABILITY,
+	.len = 1,
+	.value = "\x81",
+};
+
+static unsigned char *append_data(unsigned char *buf, struct ie *ie,
+				unsigned int *total_len)
+{
+	unsigned char *ptr;
+	unsigned old, len = ie->len + 1 + 1;
+
+	old = *total_len;
+	*total_len += len;
+
+	ptr = realloc(buf, *total_len);
+
+	memcpy(ptr + old, ie, len);
+
+	return ptr;
+}
+
+int main(int argc, char *argv[])
+{
+	struct test_data tc1;
+
+	l_test_init(&argc, &argv);
+
+	memset(&tc1, 0, sizeof(tc1));
+	tc1.buf = append_data(tc1.buf, &ie_ssid, &tc1.len);
+	tc1.num_ie++;
+	tc1.buf = append_data(tc1.buf, &ie_supp_channels, &tc1.len);
+	tc1.num_ie++;
+	tc1.buf = append_data(tc1.buf, &ie_qos, &tc1.len);
+	tc1.num_ie++;
+	l_test_add("/ie/IE", ie_test, &tc1);
+
+	return l_test_run();
+}