wpa.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <sys/ioctl.h>
#include <glib.h>
#include <glib-object.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <linux/types.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/if_ether.h>
#include <dbus/dbus.h>
#include <eap-dbus.h>
#include "wpa.h"
#include "common.h"
#include "dbus-handler.h"
#include "log.h"

Include dependency graph for wpa.c:

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Functions

static guint parse_rsn_cipher_suite (guint8 *suite)

static guint parse_rsn_key_mgmt_suite (guint8 *suite)

static guint parse_wpa_cipher_suite (guint8 *suite)

static guint parse_wpa_key_mgmt_suite (guint8 *suite)

static int generate_wpa_ie (guint32 encryption, struct wlan_status_t *wlan_status)

static int generate_wpa2_ie (guint32 encryption, struct wlan_status_t *wlan_status)

int set_wpa_ie (struct wlan_status_t *wlan_status)

static guint32 pairwise_encryption_to_cipher (guint32 encryption)

static guint32 group_encryption_to_cipher (guint32 encryption)

static int set_encryption_method_helper (gint index, guint32 value)

int set_countermeasures (guint on_off)

gboolean set_encryption_method (guint32 encryption, struct wlan_status_t *wlan_status)

static gint compare_bssid (gconstpointer a, gconstpointer b)

static void remove_ap_from_black_list (unsigned char *bssid)

static gboolean mic_failure_timer_cb (void *data)

gboolean is_ap_in_black_list (unsigned char *bssid)

static gboolean mic_failure_running_cb (void *data)

static void add_ap_to_black_list (unsigned char *bssid)

static void mic_destroy_cb (gpointer data)

int handle_mic_failure (gboolean key_type, unsigned char *bssid)

int parse_rsn_ie (unsigned char *wpa_ie, unsigned int wpa_ie_len, struct ap_info_t *ap_info)

int parse_wpa_ie (unsigned char *wpa_ie, unsigned int wpa_ie_len, struct ap_info_t *ap_info)

Variables

static guint mic_failure_timer_id = 0

static guint mic_failure_running_timer_id = 0

static GSList * ap_black_list = NULL

static const guint8 WPA_CIPHER_SUITE_NONE [] = {0x00, 0x50, 0xf2, 0}

static const guint8 WPA_CIPHER_SUITE_WEP40 [] = {0x00, 0x50, 0xf2, 1}

static const guint8 WPA_CIPHER_SUITE_TKIP [] = {0x00, 0x50, 0xf2, 2}

static const guint8 WPA_CIPHER_SUITE_CCMP [] = {0x00, 0x50, 0xf2, 4}

static const guint8 WPA_CIPHER_SUITE_WEP104 [] = {0x00, 0x50, 0xf2, 5}

static const guint8 RSN_CIPHER_SUITE_NONE [] = {0x00, 0x0f, 0xac, 0}

static const guint8 RSN_CIPHER_SUITE_WEP40 [] = {0x00, 0x0f, 0xac, 1}

static const guint8 RSN_CIPHER_SUITE_TKIP [] = {0x00, 0x0f, 0xac, 2}

static const guint8 RSN_CIPHER_SUITE_CCMP [] = {0x00, 0x0f, 0xac, 4}

static const guint8 RSN_CIPHER_SUITE_WEP104 [] = {0x00, 0x0f, 0xac, 5}

static const guint8 RSN_KEY_MGMT_802_1X [] = {0x00, 0x0f, 0xac, 1}

static const guint8 RSN_KEY_MGMT_PSK [] = {0x00, 0x0f, 0xac, 2}

static const guint8 WPA_KEY_MGMT_802_1X [] = {0x00, 0x50, 0xf2, 1}

static const guint8 WPA_KEY_MGMT_PSK [] = {0x00, 0x50, 0xf2, 2}

static const guint8 WPA_OUI [] = { 0x00, 0x50, 0xf2 }

Detailed Description

Author:: Janne Yl�lehto <janne.ylalehto@nokia.com>

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

Definition in file wpa.c.

Function Documentation

static int generate_wpa2_ie	(	guint32	encryption,
		struct wlan_status_t *	wlan_status
	)			`[static]`

Generate WPA2 Information Element.

Parameters:

	encryption	encryption settings.
	wlan_status	wlan status information.

Returns:: status.

Definition at line 223 of file wpa.c.

References find_pmkid_from_pmk_cache(), and update_own_ie().

Referenced by set_encryption_method().

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static int generate_wpa_ie	(	guint32	encryption,
		struct wlan_status_t *	wlan_status
	)			`[static]`

Generate WPA1 Information Element.

Parameters:

	encryption	encryption settings.
	wlan_status	wlan status information.

Returns:: status.

Definition at line 133 of file wpa.c.

References update_own_ie().

Referenced by set_encryption_method().

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int handle_mic_failure	(	gboolean	key_type,
		unsigned char *	bssid
	)

Handle MIC failure.

Parameters:

key_type

Key type (pairwise/group).

Returns:: status.

Definition at line 608 of file wpa.c.

References mic_failure_running_cb(), mic_failure_timer_cb(), mlme_command(), set_wlan_state(), and wpa_mic_failure_event().

Referenced by handle_custom_event().

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gboolean is_ap_in_black_list ( unsigned char * bssid )

Check if access point is in the black list.

Parameters:

bssid

BSSID.

Returns:: TRUE if in the list.

Definition at line 562 of file wpa.c.

Referenced by find_connection().

static gboolean mic_failure_running_cb ( void * data ) [static]

Mic failure running timer callback.

Parameters:

data

callback data.

Returns:: status.

Definition at line 580 of file wpa.c.

References remove_ap_from_black_list().

Referenced by handle_mic_failure().

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static gboolean mic_failure_timer_cb ( void * data ) [static]

Mic failure timer callback.

Parameters:

data

callback data.

Returns:: status.

Definition at line 543 of file wpa.c.

References remove_ap_from_black_list().

Referenced by handle_mic_failure().

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int parse_rsn_ie	(	unsigned char *	wpa_ie,
		unsigned int	wpa_ie_len,
		struct ap_info_t *	ap_info
	)

Parse RSN IE.

Parameters:

	wpa_ie	WPA IE.
	wpa_ie_len	WPA IE length.
	ap_info	AP Information pointer.

Returns:: status.

Definition at line 662 of file wpa.c.

Referenced by handle_wpa_ie_event_binary().

int parse_wpa_ie	(	unsigned char *	wpa_ie,
		unsigned int	wpa_ie_len,
		struct ap_info_t *	ap_info
	)

Parse WPA IE.

Parameters:

	wpa_ie	WPA IE.
	wpa_ie_len	WPA IE length.
	ap_info	AP Information pointer.

Returns:: status.

Definition at line 771 of file wpa.c.

Referenced by handle_wpa_ie_event_binary().

static void remove_ap_from_black_list ( unsigned char * bssid ) [static]

Remove access point from the black list.

Parameters:

bssid

BSSID.

Definition at line 520 of file wpa.c.

Referenced by mic_failure_running_cb(), and mic_failure_timer_cb().

int set_countermeasures ( guint on_off )

Set WPA countermeasures.

Parameters:

onoff

On or Off.

Returns:: status.

Definition at line 397 of file wpa.c.

References set_encryption_method_helper().

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gboolean set_encryption_method	(	guint32	encryption,
		struct wlan_status_t *	wlan_status
	)

Set encryption settings.

Parameters:

	encryption	Encryption settings.
	wlan_status	WLAN status struct.

Returns:: status.

Definition at line 409 of file wpa.c.

References generate_wpa2_ie(), generate_wpa_ie(), set_encryption_method_helper(), and set_wpa_ie().

Referenced by associate().

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static int set_encryption_method_helper	(	gint	index,
		guint32	value
	)			`[static]`

Helper function for setting the encryption settings.

Parameters:

	index	Setting to be modified.
	value	New value.

Returns:: status.

Definition at line 374 of file wpa.c.

References init_iwreq(), and socket_open().

Referenced by set_countermeasures(), and set_encryption_method().

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int set_wpa_ie ( struct wlan_status_t * wlan_status )

Set WPA Information Element.

Parameters:

	wpa_ie	WPA Information Element.
	wpa_ie_len	WPA Information Element length.

Returns:: status.

Definition at line 322 of file wpa.c.

References init_iwreq(), and socket_open().

Referenced by handle_wap_event(), and set_encryption_method().

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Functions
static guint	parse_rsn_cipher_suite (guint8 *suite)
static guint	parse_rsn_key_mgmt_suite (guint8 *suite)
static guint	parse_wpa_cipher_suite (guint8 *suite)
static guint	parse_wpa_key_mgmt_suite (guint8 *suite)
static int	generate_wpa_ie (guint32 encryption, struct wlan_status_t *wlan_status)
static int	generate_wpa2_ie (guint32 encryption, struct wlan_status_t *wlan_status)
int	set_wpa_ie (struct wlan_status_t *wlan_status)
static guint32	pairwise_encryption_to_cipher (guint32 encryption)
static guint32	group_encryption_to_cipher (guint32 encryption)
static int	set_encryption_method_helper (gint index, guint32 value)
int	set_countermeasures (guint on_off)
gboolean	set_encryption_method (guint32 encryption, struct wlan_status_t *wlan_status)
static gint	compare_bssid (gconstpointer a, gconstpointer b)
static void	remove_ap_from_black_list (unsigned char *bssid)
static gboolean	mic_failure_timer_cb (void *data)
gboolean	is_ap_in_black_list (unsigned char *bssid)
static gboolean	mic_failure_running_cb (void *data)
static void	add_ap_to_black_list (unsigned char *bssid)
static void	mic_destroy_cb (gpointer data)
int	handle_mic_failure (gboolean key_type, unsigned char *bssid)
int	parse_rsn_ie (unsigned char wpa_ie, unsigned int wpa_ie_len, struct ap_info_t ap_info)
int	parse_wpa_ie (unsigned char wpa_ie, unsigned int wpa_ie_len, struct ap_info_t ap_info)
Variables
static guint	mic_failure_timer_id = 0
static guint	mic_failure_running_timer_id = 0
static GSList *	ap_black_list = NULL
static const guint8	WPA_CIPHER_SUITE_NONE [] = {0x00, 0x50, 0xf2, 0}
static const guint8	WPA_CIPHER_SUITE_WEP40 [] = {0x00, 0x50, 0xf2, 1}
static const guint8	WPA_CIPHER_SUITE_TKIP [] = {0x00, 0x50, 0xf2, 2}
static const guint8	WPA_CIPHER_SUITE_CCMP [] = {0x00, 0x50, 0xf2, 4}
static const guint8	WPA_CIPHER_SUITE_WEP104 [] = {0x00, 0x50, 0xf2, 5}
static const guint8	RSN_CIPHER_SUITE_NONE [] = {0x00, 0x0f, 0xac, 0}
static const guint8	RSN_CIPHER_SUITE_WEP40 [] = {0x00, 0x0f, 0xac, 1}
static const guint8	RSN_CIPHER_SUITE_TKIP [] = {0x00, 0x0f, 0xac, 2}
static const guint8	RSN_CIPHER_SUITE_CCMP [] = {0x00, 0x0f, 0xac, 4}
static const guint8	RSN_CIPHER_SUITE_WEP104 [] = {0x00, 0x0f, 0xac, 5}
static const guint8	RSN_KEY_MGMT_802_1X [] = {0x00, 0x0f, 0xac, 1}
static const guint8	RSN_KEY_MGMT_PSK [] = {0x00, 0x0f, 0xac, 2}
static const guint8	WPA_KEY_MGMT_802_1X [] = {0x00, 0x50, 0xf2, 1}
static const guint8	WPA_KEY_MGMT_PSK [] = {0x00, 0x50, 0xf2, 2}
static const guint8	WPA_OUI [] = { 0x00, 0x50, 0xf2 }