hostapd/tests/test-https_server.c
Jouni Malinen b49ec25979 tests: Add a simple HTTPS server for TLS testing
This makes it easier to use TLS testing tools against the internal TLS
implementation.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-02-10 01:55:39 +02:00

275 lines
5.8 KiB
C

/*
* Testing tool for TLSv1 server routines using HTTPS
* Copyright (c) 2011-2019, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include "common.h"
#include "crypto/tls.h"
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, int timeout_ms)
{
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 = timeout_ms / 1000;
tv.tv_usec = timeout_ms % 1000;
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 void https_tls_log_cb(void *ctx, const char *msg)
{
wpa_printf(MSG_DEBUG, "TLS: %s", msg);
}
static int https_server(int s)
{
struct tls_config conf;
void *tls;
struct tls_connection_params params;
struct tls_connection *conn;
struct wpabuf *in, *out, *appl;
int res = -1;
os_memset(&conf, 0, sizeof(conf));
conf.event_cb = https_tls_event_cb;
tls = tls_init(&conf);
if (!tls)
return -1;
os_memset(&params, 0, sizeof(params));
params.ca_cert = "hwsim/auth_serv/ca.pem";
params.client_cert = "hwsim/auth_serv/server.pem";
params.private_key = "hwsim/auth_serv/server.key";
params.dh_file = "hwsim/auth_serv/dh.conf";
if (tls_global_set_params(tls, &params)) {
wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
tls_deinit(tls);
return -1;
}
conn = tls_connection_init(tls);
if (!conn) {
tls_deinit(tls);
return -1;
}
tls_connection_set_log_cb(conn, https_tls_log_cb, NULL);
for (;;) {
in = https_recv(s, 5000);
if (!in)
goto done;
appl = NULL;
out = tls_connection_server_handshake(tls, conn, in, &appl);
wpabuf_free(in);
in = NULL;
if (!out) {
if (!tls_connection_get_failed(tls, conn) &&
!tls_connection_established(tls, conn))
continue;
goto done;
}
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;
if (tls_connection_get_failed(tls, conn)) {
wpa_printf(MSG_ERROR, "TLS handshake failed");
goto done;
}
if (tls_connection_established(tls, conn))
break;
}
wpabuf_free(out);
out = NULL;
wpa_printf(MSG_INFO, "TLS connection established");
if (appl)
wpa_hexdump_buf(MSG_DEBUG, "Received application data", appl);
wpa_printf(MSG_INFO, "Reading HTTP request");
for (;;) {
int need_more_data;
in = https_recv(s, 5000);
if (!in)
goto done;
out = tls_connection_decrypt2(tls, conn, in, &need_more_data);
wpabuf_free(in);
in = NULL;
if (need_more_data) {
wpa_printf(MSG_DEBUG, "HTTP: Need more data");
continue;
}
if (!out)
goto done;
wpa_hexdump_ascii(MSG_INFO, "Request",
wpabuf_head(out), wpabuf_len(out));
wpabuf_free(out);
out = NULL;
break;
}
in = wpabuf_alloc(1000);
if (!in)
goto done;
wpabuf_put_str(in, "HTTP/1.1 200 OK\r\n"
"Server: test-https_server\r\n"
"\r\n"
"<HTML><BODY>HELLO</BODY></HTML>\n");
wpa_hexdump_ascii(MSG_DEBUG, "Response",
wpabuf_head(in), wpabuf_len(in));
out = tls_connection_encrypt(tls, conn, in);
wpabuf_free(in);
in = NULL;
wpa_hexdump_buf(MSG_DEBUG, "Encrypted response", out);
if (!out)
goto done;
wpa_printf(MSG_INFO, "Sending HTTP response: %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;
res = 0;
done:
wpabuf_free(out);
wpabuf_free(in);
wpabuf_free(appl);
tls_connection_deinit(tls, conn);
tls_deinit(tls);
close(s);
return res;
}
int main(int argc, char *argv[])
{
struct sockaddr_in sin;
int port, s, conn;
int on = 1;
wpa_debug_level = 0;
wpa_debug_show_keys = 1;
if (argc < 2) {
wpa_printf(MSG_INFO, "usage: test-https_server port");
return -1;
}
port = atoi(argv[1]);
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0) {
perror("socket");
return -1;
}
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0) {
wpa_printf(MSG_DEBUG,
"HTTP: setsockopt(SO_REUSEADDR) failed: %s",
strerror(errno));
/* try to continue anyway */
}
os_memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
if (bind(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
perror("bind");
close(s);
return -1;
}
if (listen(s, 10) < 0) {
perror("listen");
close(s);
return -1;
}
for (;;) {
struct sockaddr_in addr;
socklen_t addr_len = sizeof(addr);
conn = accept(s, (struct sockaddr *) &addr, &addr_len);
if (conn < 0) {
perror("accept");
break;
}
wpa_printf(MSG_DEBUG, "-------------------------------------");
wpa_printf(MSG_DEBUG, "Connection from %s:%d",
inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
https_server(conn);
wpa_printf(MSG_DEBUG, "Done with the connection");
wpa_printf(MSG_DEBUG, "-------------------------------------");
}
close(s);
return 0;
}