wpa_supplicant: Initial Revision 0.8.X
Based on:
commit 0725cc7b7efc434910e89865c42eda7ce61bbf08
Author: Jouni Malinen <j@w1.fi>
Date: Thu Apr 21 20:41:01 2011 +0300
Enable CONFIG_DRIVER_NL80211=y in the default configuration
nl80211 should be preferred over WEXT with any recent Linux
kernel version.
Change-Id: I26aec5afbbd4f4a1f5fd900912545b6f5050de64
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
diff --git a/src/wps/wps_ufd.c b/src/wps/wps_ufd.c
new file mode 100644
index 0000000..1a911e1
--- /dev/null
+++ b/src/wps/wps_ufd.c
@@ -0,0 +1,235 @@
+/*
+ * UFD routines for Wi-Fi Protected Setup
+ * Copyright (c) 2009, Masashi Honma <honma@ictec.co.jp>
+ *
+ * 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 "common.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <dirent.h>
+
+#include "wps/wps.h"
+#include "wps/wps_i.h"
+
+#ifdef CONFIG_NATIVE_WINDOWS
+#define UFD_DIR1 "%s\\SMRTNTKY"
+#define UFD_DIR2 UFD_DIR1 "\\WFAWSC"
+#define UFD_FILE UFD_DIR2 "\\%s"
+#else /* CONFIG_NATIVE_WINDOWS */
+#define UFD_DIR1 "%s/SMRTNTKY"
+#define UFD_DIR2 UFD_DIR1 "/WFAWSC"
+#define UFD_FILE UFD_DIR2 "/%s"
+#endif /* CONFIG_NATIVE_WINDOWS */
+
+
+struct wps_ufd_data {
+ int ufd_fd;
+};
+
+
+static int dev_pwd_e_file_filter(const struct dirent *entry)
+{
+ unsigned int prefix;
+ char ext[5];
+
+ if (sscanf(entry->d_name, "%8x.%4s", &prefix, ext) != 2)
+ return 0;
+ if (prefix == 0)
+ return 0;
+ if (os_strcasecmp(ext, "WFA") != 0)
+ return 0;
+
+ return 1;
+}
+
+
+static int wps_get_dev_pwd_e_file_name(char *path, char *file_name)
+{
+ struct dirent **namelist;
+ int i, file_num;
+
+ file_num = scandir(path, &namelist, &dev_pwd_e_file_filter,
+ alphasort);
+ if (file_num < 0) {
+ wpa_printf(MSG_ERROR, "WPS: OOB file not found: %d (%s)",
+ errno, strerror(errno));
+ return -1;
+ }
+ if (file_num == 0) {
+ wpa_printf(MSG_ERROR, "WPS: OOB file not found");
+ os_free(namelist);
+ return -1;
+ }
+ os_strlcpy(file_name, namelist[0]->d_name, 13);
+ for (i = 0; i < file_num; i++)
+ os_free(namelist[i]);
+ os_free(namelist);
+ return 0;
+}
+
+
+static int get_file_name(struct wps_context *wps, int registrar,
+ const char *path, char *file_name)
+{
+ switch (wps->oob_conf.oob_method) {
+ case OOB_METHOD_CRED:
+ os_snprintf(file_name, 13, "00000000.WSC");
+ break;
+ case OOB_METHOD_DEV_PWD_E:
+ if (registrar) {
+ char temp[128];
+ os_snprintf(temp, sizeof(temp), UFD_DIR2, path);
+ if (wps_get_dev_pwd_e_file_name(temp, file_name) < 0)
+ return -1;
+ } else {
+ u8 *mac_addr = wps->dev.mac_addr;
+
+ os_snprintf(file_name, 13, "%02X%02X%02X%02X.WFA",
+ mac_addr[2], mac_addr[3], mac_addr[4],
+ mac_addr[5]);
+ }
+ break;
+ case OOB_METHOD_DEV_PWD_R:
+ os_snprintf(file_name, 13, "00000000.WFA");
+ break;
+ default:
+ wpa_printf(MSG_ERROR, "WPS: Invalid USBA OOB method");
+ return -1;
+ }
+ return 0;
+}
+
+
+static int ufd_mkdir(const char *path)
+{
+ if (mkdir(path, S_IRWXU) < 0 && errno != EEXIST) {
+ wpa_printf(MSG_ERROR, "WPS (UFD): Failed to create directory "
+ "'%s': %d (%s)", path, errno, strerror(errno));
+ return -1;
+ }
+ return 0;
+}
+
+
+static void * init_ufd(struct wps_context *wps,
+ struct oob_device_data *oob_dev, int registrar)
+{
+ int write_f;
+ char temp[128];
+ char *path = oob_dev->device_path;
+ char filename[13];
+ struct wps_ufd_data *data;
+ int ufd_fd;
+
+ if (path == NULL)
+ return NULL;
+
+ write_f = wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ?
+ !registrar : registrar;
+
+ if (get_file_name(wps, registrar, path, filename) < 0) {
+ wpa_printf(MSG_ERROR, "WPS (UFD): Failed to get file name");
+ return NULL;
+ }
+
+ if (write_f) {
+ os_snprintf(temp, sizeof(temp), UFD_DIR1, path);
+ if (ufd_mkdir(temp))
+ return NULL;
+ os_snprintf(temp, sizeof(temp), UFD_DIR2, path);
+ if (ufd_mkdir(temp))
+ return NULL;
+ }
+
+ os_snprintf(temp, sizeof(temp), UFD_FILE, path, filename);
+ if (write_f)
+ ufd_fd = open(temp, O_WRONLY | O_CREAT | O_TRUNC,
+ S_IRUSR | S_IWUSR);
+ else
+ ufd_fd = open(temp, O_RDONLY);
+ if (ufd_fd < 0) {
+ wpa_printf(MSG_ERROR, "WPS (UFD): Failed to open %s: %s",
+ temp, strerror(errno));
+ return NULL;
+ }
+
+ data = os_zalloc(sizeof(*data));
+ if (data == NULL)
+ return NULL;
+ data->ufd_fd = ufd_fd;
+ return data;
+}
+
+
+static struct wpabuf * read_ufd(void *priv)
+{
+ struct wps_ufd_data *data = priv;
+ struct wpabuf *buf;
+ struct stat s;
+ size_t file_size;
+
+ if (fstat(data->ufd_fd, &s) < 0) {
+ wpa_printf(MSG_ERROR, "WPS (UFD): Failed to get file size");
+ return NULL;
+ }
+
+ file_size = s.st_size;
+ buf = wpabuf_alloc(file_size);
+ if (buf == NULL) {
+ wpa_printf(MSG_ERROR, "WPS (UFD): Failed to alloc read "
+ "buffer");
+ return NULL;
+ }
+
+ if (read(data->ufd_fd, wpabuf_mhead(buf), file_size) !=
+ (int) file_size) {
+ wpabuf_free(buf);
+ wpa_printf(MSG_ERROR, "WPS (UFD): Failed to read");
+ return NULL;
+ }
+ wpabuf_put(buf, file_size);
+ return buf;
+}
+
+
+static int write_ufd(void *priv, struct wpabuf *buf)
+{
+ struct wps_ufd_data *data = priv;
+
+ if (write(data->ufd_fd, wpabuf_mhead(buf), wpabuf_len(buf)) !=
+ (int) wpabuf_len(buf)) {
+ wpa_printf(MSG_ERROR, "WPS (UFD): Failed to write");
+ return -1;
+ }
+ return 0;
+}
+
+
+static void deinit_ufd(void *priv)
+{
+ struct wps_ufd_data *data = priv;
+ close(data->ufd_fd);
+ os_free(data);
+}
+
+
+struct oob_device_data oob_ufd_device_data = {
+ .device_name = NULL,
+ .device_path = NULL,
+ .init_func = init_ufd,
+ .read_func = read_ufd,
+ .write_func = write_ufd,
+ .deinit_func = deinit_ufd,
+};