2 * UFD routines for Wi-Fi Protected Setup
3 * Copyright (c) 2009, Masashi Honma <honma@ictec.co.jp>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
17 #include <sys/types.h>
25 #ifdef CONFIG_NATIVE_WINDOWS
26 #define UFD_DIR1 "%s\\SMRTNTKY"
27 #define UFD_DIR2 UFD_DIR1 "\\WFAWSC"
28 #define UFD_FILE UFD_DIR2 "\\%s"
29 #else /* CONFIG_NATIVE_WINDOWS */
30 #define UFD_DIR1 "%s/SMRTNTKY"
31 #define UFD_DIR2 UFD_DIR1 "/WFAWSC"
32 #define UFD_FILE UFD_DIR2 "/%s"
33 #endif /* CONFIG_NATIVE_WINDOWS */
41 static int dev_pwd_e_file_filter(const struct dirent *entry)
46 if (sscanf(entry->d_name, "%8x.%4s", &prefix, ext) != 2)
50 if (os_strcasecmp(ext, "WFA") != 0)
57 static int wps_get_dev_pwd_e_file_name(char *path, char *file_name)
59 struct dirent **namelist;
62 file_num = scandir(path, &namelist, &dev_pwd_e_file_filter,
65 wpa_printf(MSG_ERROR, "WPS: OOB file not found: %d (%s)",
66 errno, strerror(errno));
70 wpa_printf(MSG_ERROR, "WPS: OOB file not found");
74 os_strlcpy(file_name, namelist[0]->d_name, 13);
75 for (i = 0; i < file_num; i++)
82 static int get_file_name(struct wps_context *wps, int registrar,
83 const char *path, char *file_name)
85 switch (wps->oob_conf.oob_method) {
87 os_snprintf(file_name, 13, "00000000.WSC");
89 case OOB_METHOD_DEV_PWD_E:
92 os_snprintf(temp, sizeof(temp), UFD_DIR2, path);
93 if (wps_get_dev_pwd_e_file_name(temp, file_name) < 0)
96 u8 *mac_addr = wps->dev.mac_addr;
98 os_snprintf(file_name, 13, "%02X%02X%02X%02X.WFA",
99 mac_addr[2], mac_addr[3], mac_addr[4],
103 case OOB_METHOD_DEV_PWD_R:
104 os_snprintf(file_name, 13, "00000000.WFA");
107 wpa_printf(MSG_ERROR, "WPS: Invalid USBA OOB method");
114 static int ufd_mkdir(const char *path)
116 if (mkdir(path, S_IRWXU) < 0 && errno != EEXIST) {
117 wpa_printf(MSG_ERROR, "WPS (UFD): Failed to create directory "
118 "'%s': %d (%s)", path, errno, strerror(errno));
125 static void * init_ufd(struct wps_context *wps,
126 struct oob_device_data *oob_dev, int registrar)
130 char *path = oob_dev->device_path;
132 struct wps_ufd_data *data;
138 write_f = wps->oob_conf.oob_method == OOB_METHOD_DEV_PWD_E ?
139 !registrar : registrar;
141 if (get_file_name(wps, registrar, path, filename) < 0) {
142 wpa_printf(MSG_ERROR, "WPS (UFD): Failed to get file name");
147 os_snprintf(temp, sizeof(temp), UFD_DIR1, path);
150 os_snprintf(temp, sizeof(temp), UFD_DIR2, path);
155 os_snprintf(temp, sizeof(temp), UFD_FILE, path, filename);
157 ufd_fd = open(temp, O_WRONLY | O_CREAT | O_TRUNC,
160 ufd_fd = open(temp, O_RDONLY);
162 wpa_printf(MSG_ERROR, "WPS (UFD): Failed to open %s: %s",
163 temp, strerror(errno));
167 data = os_zalloc(sizeof(*data));
170 data->ufd_fd = ufd_fd;
175 static struct wpabuf * read_ufd(void *priv)
177 struct wps_ufd_data *data = priv;
182 if (fstat(data->ufd_fd, &s) < 0) {
183 wpa_printf(MSG_ERROR, "WPS (UFD): Failed to get file size");
187 file_size = s.st_size;
188 buf = wpabuf_alloc(file_size);
190 wpa_printf(MSG_ERROR, "WPS (UFD): Failed to alloc read "
195 if (read(data->ufd_fd, wpabuf_mhead(buf), file_size) !=
198 wpa_printf(MSG_ERROR, "WPS (UFD): Failed to read");
201 wpabuf_put(buf, file_size);
206 static int write_ufd(void *priv, struct wpabuf *buf)
208 struct wps_ufd_data *data = priv;
210 if (write(data->ufd_fd, wpabuf_mhead(buf), wpabuf_len(buf)) !=
211 (int) wpabuf_len(buf)) {
212 wpa_printf(MSG_ERROR, "WPS (UFD): Failed to write");
219 static void deinit_ufd(void *priv)
221 struct wps_ufd_data *data = priv;
227 struct oob_device_data oob_ufd_device_data = {
230 .init_func = init_ufd,
231 .read_func = read_ufd,
232 .write_func = write_ufd,
233 .deinit_func = deinit_ufd,