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WPS: Moved WPS IE building for ProbeReq/AssocReq into wps.c

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These functions fit in better with the category of functions included in
wps.c. wps_common.c is now used for generic helper functions (currently,
only crypto code).
This commit is contained in:
Jouni Malinen 2008-11-29 13:21:28 +02:00
parent 7d7b8e960a
commit b8a8c299c8
3 changed files with 88 additions and 90 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

71
src/wps/wps.c
View File

@ -17,6 +17,7 @@
#include "common.h"
#include "wps_i.h"
#include "wps_dev_attr.h"
#include "ieee802_11_defs.h"
struct wps_data * wps_init(const struct wps_config *cfg)
@ -171,3 +172,73 @@ const u8 * wps_get_uuid_e(const u8 *buf, size_t len)
return NULL;
return attr.uuid_e;
}
struct wpabuf * wps_build_assoc_req_ie(void)
{
struct wpabuf *ie;
u8 *len;
wpa_printf(MSG_DEBUG, "WPS: Building WPS IE for (Re)Association "
"Request");
ie = wpabuf_alloc(100);
if (ie == NULL)
return NULL;
wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC);
len = wpabuf_put(ie, 1);
wpabuf_put_be32(ie, WPS_DEV_OUI_WFA);
if (wps_build_version(ie) ||
wps_build_req_type(ie, WPS_REQ_ENROLLEE)) {
wpabuf_free(ie);
return NULL;
}
*len = wpabuf_len(ie) - 2;
return ie;
}
struct wpabuf * wps_build_probe_req_ie(int pbc, struct wps_device_data *dev,
const u8 *uuid)
{
struct wpabuf *ie;
u8 *len;
u16 methods;
wpa_printf(MSG_DEBUG, "WPS: Building WPS IE for Probe Request");
ie = wpabuf_alloc(200);
if (ie == NULL)
return NULL;
wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC);
len = wpabuf_put(ie, 1);
wpabuf_put_be32(ie, WPS_DEV_OUI_WFA);
if (pbc)
methods = WPS_CONFIG_PUSHBUTTON;
else
methods = WPS_CONFIG_LABEL | WPS_CONFIG_DISPLAY |
WPS_CONFIG_KEYPAD;
if (wps_build_version(ie) ||
wps_build_req_type(ie, WPS_REQ_ENROLLEE) ||
wps_build_config_methods(ie, methods) ||
wps_build_uuid_e(ie, uuid) ||
wps_build_primary_dev_type(dev, ie) ||
wps_build_rf_bands(dev, ie) ||
wps_build_assoc_state(NULL, ie) ||
wps_build_config_error(ie, WPS_CFG_NO_ERROR) ||
wps_build_dev_password_id(ie, pbc ? DEV_PW_PUSHBUTTON :
DEV_PW_DEFAULT)) {
wpabuf_free(ie);
return NULL;
}
*len = wpabuf_len(ie) - 2;
return ie;
}

36
src/wps/wps.h
View File

@ -37,6 +37,20 @@ struct wps_credential {
u8 mac_addr[ETH_ALEN];
};
struct wps_device_data {
u8 mac_addr[ETH_ALEN];
char *device_name;
char *manufacturer;
char *model_name;
char *model_number;
char *serial_number;
u16 categ;
u32 oui;
u16 sub_categ;
u32 os_version;
u8 rf_bands; /* WPS_RF_* */
};
struct wps_config {
int authenticator;
struct wps_context *wps;
@ -65,21 +79,9 @@ struct wpabuf * wps_get_msg(struct wps_data *wps, u8 *op_code);
int wps_is_selected_pbc_registrar(const u8 *buf, size_t len);
int wps_is_selected_pin_registrar(const u8 *buf, size_t len);
const u8 * wps_get_uuid_e(const u8 *buf, size_t len);
struct wps_device_data {
u8 mac_addr[ETH_ALEN];
char *device_name;
char *manufacturer;
char *model_name;
char *model_number;
char *serial_number;
u16 categ;
u32 oui;
u16 sub_categ;
u32 os_version;
u8 rf_bands; /* WPS_RF_* */
};
struct wpabuf * wps_build_assoc_req_ie(void);
struct wpabuf * wps_build_probe_req_ie(int pbc, struct wps_device_data *dev,
const u8 *uuid);
struct wps_registrar_config {
@ -131,8 +133,4 @@ int wps_registrar_button_pushed(struct wps_registrar *reg);
void wps_registrar_probe_req_rx(struct wps_registrar *reg, const u8 *addr,
const struct wpabuf *wps_data);
struct wpabuf * wps_build_assoc_req_ie(void);
struct wpabuf * wps_build_probe_req_ie(int pbc, struct wps_device_data *dev,
const u8 *uuid);
#endif /* WPS_H */

71
src/wps/wps_common.c
View File

@ -19,7 +19,6 @@
#include "sha256.h"
#include "aes_wrap.h"
#include "crypto.h"
#include "ieee802_11_defs.h"
#include "wps_i.h"
#include "wps_dev_attr.h"
@ -62,76 +61,6 @@ void wps_kdf(const u8 *key, const u8 *label_prefix, size_t label_prefix_len,
}
struct wpabuf * wps_build_assoc_req_ie(void)
{
struct wpabuf *ie;
u8 *len;
wpa_printf(MSG_DEBUG, "WPS: Building WPS IE for (Re)Association "
"Request");
ie = wpabuf_alloc(100);
if (ie == NULL)
return NULL;
wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC);
len = wpabuf_put(ie, 1);
wpabuf_put_be32(ie, WPS_DEV_OUI_WFA);
if (wps_build_version(ie) ||
wps_build_req_type(ie, WPS_REQ_ENROLLEE)) {
wpabuf_free(ie);
return NULL;
}
*len = wpabuf_len(ie) - 2;
return ie;
}
struct wpabuf * wps_build_probe_req_ie(int pbc, struct wps_device_data *dev,
const u8 *uuid)
{
struct wpabuf *ie;
u8 *len;
u16 methods;
wpa_printf(MSG_DEBUG, "WPS: Building WPS IE for Probe Request");
ie = wpabuf_alloc(200);
if (ie == NULL)
return NULL;
wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC);
len = wpabuf_put(ie, 1);
wpabuf_put_be32(ie, WPS_DEV_OUI_WFA);
if (pbc)
methods = WPS_CONFIG_PUSHBUTTON;
else
methods = WPS_CONFIG_LABEL | WPS_CONFIG_DISPLAY |
WPS_CONFIG_KEYPAD;
if (wps_build_version(ie) ||
wps_build_req_type(ie, WPS_REQ_ENROLLEE) ||
wps_build_config_methods(ie, methods) ||
wps_build_uuid_e(ie, uuid) ||
wps_build_primary_dev_type(dev, ie) ||
wps_build_rf_bands(dev, ie) ||
wps_build_assoc_state(NULL, ie) ||
wps_build_config_error(ie, WPS_CFG_NO_ERROR) ||
wps_build_dev_password_id(ie, pbc ? DEV_PW_PUSHBUTTON :
DEV_PW_DEFAULT)) {
wpabuf_free(ie);
return NULL;
}
*len = wpabuf_len(ie) - 2;
return ie;
}
int wps_derive_keys(struct wps_data *wps)
{
struct wpabuf *pubkey, *dh_shared;