eapol_test: Allow full RADIUS attribute length to be used

The -N and -C command line parameters can be used to add arbitrary
RADIUS attributes to the messages. However, these were truncated to
about 128 bytes when the actually message was constructed. Fix this by
using larger buffers to allow the maximum attribute length (253 octets
of payload) to be used. [Bug 458]

Signed-hostap: Jouni Malinen <j@w1.fi>

wpa_supplicant/eapol_test.c

@@ -98,7 +98,7 @@ static int add_extra_attr(struct radius_msg *msg,
 	size_t len;
 	char *pos;
 	u32 val;
-	char buf[128];
+	char buf[RADIUS_MAX_ATTR_LEN + 1];
 
 	switch (attr->syntax) {
 	case 's':
@@ -114,7 +114,7 @@ static int add_extra_attr(struct radius_msg *msg,
 		if (pos[0] == '0' && pos[1] == 'x')
 			pos += 2;
 		len = os_strlen(pos);
-		if ((len & 1) || (len / 2) > sizeof(buf)) {
+		if ((len & 1) || (len / 2) > RADIUS_MAX_ATTR_LEN) {
 			printf("Invalid extra attribute hexstring\n");
 			return -1;
 		}
@@ -171,7 +171,7 @@ static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e,
 					  const u8 *eap, size_t len)
 {
 	struct radius_msg *msg;
-	char buf[128];
+	char buf[RADIUS_MAX_ATTR_LEN + 1];
 	const struct eap_hdr *hdr;
 	const u8 *pos;