Add test-https for testing internal TLS client functionality

This tool can be used to test the internal TLS client implementation
against HTTPS servers.

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

tests/.gitignore

@@ -1,6 +1,7 @@
 test-aes
 test-asn1
 test-base64
+test-https
 test-list
 test-md4
 test-md5

tests/Makefile

@@ -45,6 +45,9 @@ test-asn1: test-asn1.o $(LIBS)
 test-base64: test-base64.o $(LIBS)
 	$(LDO) $(LDFLAGS) -o $@ $^
 
+test-https: test-https.o $(LIBS)
+	$(LDO) $(LDFLAGS) -o $@ $< $(LLIBS)
+
 test-list: test-list.o $(LIBS)
 	$(LDO) $(LDFLAGS) -o $@ $^
 

tests/test-https.c

@@ -0,0 +1,230 @@
+/*
+ * Testing tool for TLSv1 client routines using HTTPS
+ * Copyright (c) 2011, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+#include <netdb.h>
+
+#include "common.h"
+#include "crypto/tls.h"
+
+extern int wpa_debug_level;
+extern int wpa_debug_show_keys;
+
+
+static void https_tls_event_cb(void *ctx, enum tls_event ev,
+			       union tls_event_data *data)
+{
+	wpa_printf(MSG_DEBUG, "HTTPS: TLS event %d", ev);
+}
+
+
+static struct wpabuf * https_recv(int s)
+{
+	struct wpabuf *in;
+	int len, ret;
+	fd_set rfds;
+	struct timeval tv;
+
+	in = wpabuf_alloc(20000);
+	if (in == NULL)
+		return NULL;
+
+	FD_ZERO(&rfds);
+	FD_SET(s, &rfds);
+	tv.tv_sec = 5;
+	tv.tv_usec = 0;
+
+	wpa_printf(MSG_DEBUG, "Waiting for more data");
+	ret = select(s + 1, &rfds, NULL, NULL, &tv);
+	if (ret < 0) {
+		wpa_printf(MSG_ERROR, "select: %s", strerror(errno));
+		wpabuf_free(in);
+		return NULL;
+	}
+	if (ret == 0) {
+		/* timeout */
+		wpa_printf(MSG_INFO, "Timeout on waiting for data");
+		wpabuf_free(in);
+		return NULL;
+	}
+
+	len = recv(s, wpabuf_put(in, 0), wpabuf_tailroom(in), 0);
+	if (len < 0) {
+		wpa_printf(MSG_ERROR, "recv: %s", strerror(errno));
+		wpabuf_free(in);
+		return NULL;
+	}
+	if (len == 0) {
+		wpa_printf(MSG_DEBUG, "No more data available");
+		wpabuf_free(in);
+		return NULL;
+	}
+	wpa_printf(MSG_DEBUG, "Received %d bytes", len);
+	wpabuf_put(in, len);
+
+	return in;
+}
+
+
+static int https_client(int s, const char *path)
+{
+	struct tls_config conf;
+	void *tls;
+	struct tls_connection *conn;
+	struct wpabuf *in, *out, *appl;
+	int res = -1;
+	int need_more_data;
+
+	os_memset(&conf, 0, sizeof(conf));
+	conf.event_cb = https_tls_event_cb;
+	tls = tls_init(&conf);
+	if (tls == NULL)
+		return -1;
+
+	conn = tls_connection_init(tls);
+	if (conn == NULL) {
+		tls_deinit(tls);
+		return -1;
+	}
+
+	in = NULL;
+
+	for (;;) {
+		appl = NULL;
+		out = tls_connection_handshake2(tls, conn, in, &appl,
+						&need_more_data);
+		wpabuf_free(in);
+		in = NULL;
+		if (out == NULL) {
+			if (need_more_data)
+				goto read_more;
+			goto done;
+		}
+		if (tls_connection_get_failed(tls, conn)) {
+			wpa_printf(MSG_ERROR, "TLS handshake failed");
+			goto done;
+		}
+		if (tls_connection_established(tls, conn))
+			break;
+		wpa_printf(MSG_DEBUG, "Sending %d bytes",
+			   (int) wpabuf_len(out));
+		if (send(s, wpabuf_head(out), wpabuf_len(out), 0) < 0) {
+			wpa_printf(MSG_ERROR, "send: %s", strerror(errno));
+			goto done;
+		}
+		wpabuf_free(out);
+		out = NULL;
+
+	read_more:
+		in = https_recv(s);
+		if (in == NULL)
+			goto done;
+	}
+
+	wpa_printf(MSG_INFO, "TLS connection established");
+	if (appl)
+		wpa_hexdump_buf(MSG_DEBUG, "Received application data", appl);
+
+	in = wpabuf_alloc(100 + os_strlen(path));
+	if (in == NULL)
+		goto done;
+	wpabuf_put_str(in, "GET ");
+	wpabuf_put_str(in, path);
+	wpabuf_put_str(in, " HTTP/1.0\r\n\r\n");
+	out = tls_connection_encrypt(tls, conn, in);
+	wpabuf_free(in);
+	in = NULL;
+	if (out == NULL)
+		goto done;
+
+	wpa_printf(MSG_INFO, "Sending HTTP request: %d bytes",
+		   (int) wpabuf_len(out));
+	if (send(s, wpabuf_head(out), wpabuf_len(out), 0) < 0) {
+		wpa_printf(MSG_ERROR, "send: %s", strerror(errno));
+		goto done;
+	}
+
+	wpa_printf(MSG_INFO, "Reading HTTP response");
+	for (;;) {
+		int need_more_data;
+		in = https_recv(s);
+		if (in == NULL)
+			goto done;
+		out = tls_connection_decrypt2(tls, conn, in, &need_more_data);
+		if (need_more_data)
+			wpa_printf(MSG_DEBUG, "HTTP: Need more data");
+		wpabuf_free(in);
+		in = NULL;
+		if (out == NULL)
+			goto done;
+		wpa_hexdump_ascii(MSG_INFO, "Response", wpabuf_head(out),
+				  wpabuf_len(out));
+		wpabuf_free(out);
+		out = NULL;
+	}
+
+	res = 0;
+done:
+	wpabuf_free(out);
+	wpabuf_free(in);
+	wpabuf_free(appl);
+	tls_connection_deinit(tls, conn);
+	tls_deinit(tls);
+
+	return res;
+}
+
+
+int main(int argc, char *argv[])
+{
+	struct addrinfo hints, *result, *rp;
+	int res, s;
+
+	wpa_debug_level = 0;
+	wpa_debug_show_keys = 1;
+
+	if (argc < 4) {
+		wpa_printf(MSG_INFO, "usage: test-https server port path");
+		return -1;
+	}
+
+	os_memset(&hints, 0, sizeof(hints));
+	hints.ai_family = AF_UNSPEC;
+	hints.ai_socktype = SOCK_STREAM;
+	res = getaddrinfo(argv[1], argv[2], &hints, &result);
+	if (res) {
+		wpa_printf(MSG_ERROR, "getaddrinfo: %s", gai_strerror(res));
+		return -1;
+	}
+
+	for (rp = result; rp; rp = rp->ai_next) {
+		s = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+		if (s < 0)
+			continue;
+		if (connect(s, rp->ai_addr, rp->ai_addrlen) == 0)
+			break;
+		close(s);
+	}
+	freeaddrinfo(result);
+
+	if (rp == NULL) {
+		wpa_printf(MSG_ERROR, "Could not connect");
+		return -1;
+	}
+
+	https_client(s, argv[3]);
+	close(s);
+
+	return 0;
+}