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fragattacks/wpa_supplicant/ibss_rsn.h

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Added initial step for IBSS RSN support This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used to enable RSN support for IBSS. This links in RSN Authenticator code from hostapd and adds code for managing per-peer information for IBSS. A new wpa_cli command or driver event can be used to request RSN authentication with an IBSS peer. New RSN Authenticator and Supplicant will be allocated for each peer. The basic state machine setup code is included in this commit, but the state machines are not properly started yet. In addition, some of the callback functions are not yet complete.
2009-01-14 18:21:55 -05:00
/*
* wpa_supplicant - IBSS RSN
* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
*
Remove the GPL notification from files contributed by Jouni Malinen Remove the GPL notification text from the files that were initially contributed by myself. Signed-hostap: Jouni Malinen <j@w1.fi>
2012-02-11 09:46:35 -05:00
* This software may be distributed under the terms of the BSD license.
* See README for more details.
Added initial step for IBSS RSN support This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used to enable RSN support for IBSS. This links in RSN Authenticator code from hostapd and adds code for managing per-peer information for IBSS. A new wpa_cli command or driver event can be used to request RSN authentication with an IBSS peer. New RSN Authenticator and Supplicant will be allocated for each peer. The basic state machine setup code is included in this commit, but the state machines are not properly started yet. In addition, some of the callback functions are not yet complete.
2009-01-14 18:21:55 -05:00
*/
#ifndef IBSS_RSN_H
#define IBSS_RSN_H
Implement EAPOL sending callbacks for IBSS RSN
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struct ibss_rsn;
IBSS RSN: Add peer restart detection To better support the IBSS/RSN mechanism, wpa_supplicant has to be able to detect a possible peer reboot and in this case it should start a new EAPOL handshake. To perform such reboot detection wpa_supplicant has to perform an Open Authentication by sending an Authentication frame and then replying to it. IF an Authentication frame is received when the key have already been exchanged, wpa_supplicant understands that the peer has rebooted and can reset its state machine. Whenever a new peer is added to the IBSS wpa_supplicant will start the Open Authentication and only after having accomplished it will start the key exchange. If the driver does not support Authentication frame exchange initiated from user space, this step is skipped to maintain previous behavior (just go through EAPOL-Key frame processing). The Open Authentication was partly supported by the Linux kernel but now wpa_supplicant can register for Authentication frames, handle it in userspace and so avoid any possible race condition. Signed-hostap: Nicolas Cavallari <cavallar@lri.fr> Signed-hostap: Antonio Quartulli <antonio@open-mesh.com>
2013-07-21 08:56:53 -04:00
/* not authenticated */
#define IBSS_RSN_AUTH_NOT_AUTHENTICATED 0x00
/* remote peer sent an EAPOL message */
#define IBSS_RSN_AUTH_EAPOL_BY_PEER 0x01
/* we sent an AUTH message with seq 1 */
#define IBSS_RSN_AUTH_BY_US 0x02
/* we sent an EAPOL message */
#define IBSS_RSN_AUTH_EAPOL_BY_US 0x04
IBSS RSN: Add IBSS-RSN-COMPLETED event message This new control interface event message is used to indicate when both 4-way handshakes have been completed with a new IBSS peer. Signed-hostap: Jouni Malinen <j@w1.fi>
2013-08-25 16:09:22 -04:00
/* PTK derived as supplicant */
#define IBSS_RSN_SET_PTK_SUPP 0x08
/* PTK derived as authenticator */
#define IBSS_RSN_SET_PTK_AUTH 0x10
/* PTK completion reported */
#define IBSS_RSN_REPORTED_PTK 0x20
IBSS RSN: Add peer restart detection To better support the IBSS/RSN mechanism, wpa_supplicant has to be able to detect a possible peer reboot and in this case it should start a new EAPOL handshake. To perform such reboot detection wpa_supplicant has to perform an Open Authentication by sending an Authentication frame and then replying to it. IF an Authentication frame is received when the key have already been exchanged, wpa_supplicant understands that the peer has rebooted and can reset its state machine. Whenever a new peer is added to the IBSS wpa_supplicant will start the Open Authentication and only after having accomplished it will start the key exchange. If the driver does not support Authentication frame exchange initiated from user space, this step is skipped to maintain previous behavior (just go through EAPOL-Key frame processing). The Open Authentication was partly supported by the Linux kernel but now wpa_supplicant can register for Authentication frames, handle it in userspace and so avoid any possible race condition. Signed-hostap: Nicolas Cavallari <cavallar@lri.fr> Signed-hostap: Antonio Quartulli <antonio@open-mesh.com>
2013-07-21 08:56:53 -04:00
Added initial step for IBSS RSN support This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used to enable RSN support for IBSS. This links in RSN Authenticator code from hostapd and adds code for managing per-peer information for IBSS. A new wpa_cli command or driver event can be used to request RSN authentication with an IBSS peer. New RSN Authenticator and Supplicant will be allocated for each peer. The basic state machine setup code is included in this commit, but the state machines are not properly started yet. In addition, some of the callback functions are not yet complete.
2009-01-14 18:21:55 -05:00
struct ibss_rsn_peer {
struct ibss_rsn_peer *next;
Implement EAPOL sending callbacks for IBSS RSN
2009-01-15 17:56:31 -05:00
struct ibss_rsn *ibss_rsn;
Added initial step for IBSS RSN support This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used to enable RSN support for IBSS. This links in RSN Authenticator code from hostapd and adds code for managing per-peer information for IBSS. A new wpa_cli command or driver event can be used to request RSN authentication with an IBSS peer. New RSN Authenticator and Supplicant will be allocated for each peer. The basic state machine setup code is included in this commit, but the state machines are not properly started yet. In addition, some of the callback functions are not yet complete.
2009-01-14 18:21:55 -05:00
u8 addr[ETH_ALEN];
struct wpa_sm *supp;
Get rid of unnecessary typedefs for enums.
2009-12-26 03:35:08 -05:00
enum wpa_states supp_state;
IBSS RSN: Set more hardcoded RSN IEs for now This allows 4-way handshakes to be completed successfully.
2009-01-17 10:39:57 -05:00
u8 supp_ie[80];
size_t supp_ie_len;
Added initial step for IBSS RSN support This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used to enable RSN support for IBSS. This links in RSN Authenticator code from hostapd and adds code for managing per-peer information for IBSS. A new wpa_cli command or driver event can be used to request RSN authentication with an IBSS peer. New RSN Authenticator and Supplicant will be allocated for each peer. The basic state machine setup code is included in this commit, but the state machines are not properly started yet. In addition, some of the callback functions are not yet complete.
2009-01-14 18:21:55 -05:00
struct wpa_state_machine *auth;
IBSS RSN: Add peer restart detection To better support the IBSS/RSN mechanism, wpa_supplicant has to be able to detect a possible peer reboot and in this case it should start a new EAPOL handshake. To perform such reboot detection wpa_supplicant has to perform an Open Authentication by sending an Authentication frame and then replying to it. IF an Authentication frame is received when the key have already been exchanged, wpa_supplicant understands that the peer has rebooted and can reset its state machine. Whenever a new peer is added to the IBSS wpa_supplicant will start the Open Authentication and only after having accomplished it will start the key exchange. If the driver does not support Authentication frame exchange initiated from user space, this step is skipped to maintain previous behavior (just go through EAPOL-Key frame processing). The Open Authentication was partly supported by the Linux kernel but now wpa_supplicant can register for Authentication frames, handle it in userspace and so avoid any possible race condition. Signed-hostap: Nicolas Cavallari <cavallar@lri.fr> Signed-hostap: Antonio Quartulli <antonio@open-mesh.com>
2013-07-21 08:56:53 -04:00
int authentication_status;
IBSS RSN: Work around Data RX vs. Authentication RX race condition It is possible for the driver to report EAPOL frame RX before Authentication frame RX even if the frames arrived in the opposite order. This can result in issues in cases where both IBSS peers initiate Authentication frame exchange at about the same time and one of the EAPOL sessions is started before processing Authentication frame seq=1 RX. Work around this by not re-initializing EAPOL state on Authentication (SEQ=1) RX if own Authentication frame was transmitted within last 500 ms. Signed-hostap: Jouni Malinen <j@w1.fi>
2013-08-26 19:54:35 -04:00
IBSS RSN: Use monotonic time for reinit detection The reinit detection skips reinit when the time since the own authentication frame TX is less than half a second, so it shouldn't be affected by wall time and use monotonic time instead. Signed-hostap: Johannes Berg <johannes.berg@intel.com>
2013-12-16 15:08:39 -05:00
struct os_reltime own_auth_tx;
Added initial step for IBSS RSN support This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used to enable RSN support for IBSS. This links in RSN Authenticator code from hostapd and adds code for managing per-peer information for IBSS. A new wpa_cli command or driver event can be used to request RSN authentication with an IBSS peer. New RSN Authenticator and Supplicant will be allocated for each peer. The basic state machine setup code is included in this commit, but the state machines are not properly started yet. In addition, some of the callback functions are not yet complete.
2009-01-14 18:21:55 -05:00
};
struct ibss_rsn {
struct wpa_supplicant *wpa_s;
struct wpa_authenticator *auth_group;
struct ibss_rsn_peer *peers;
u8 psk[PMK_LEN];
};
struct ibss_rsn * ibss_rsn_init(struct wpa_supplicant *wpa_s);
void ibss_rsn_deinit(struct ibss_rsn *ibss_rsn);
int ibss_rsn_start(struct ibss_rsn *ibss_rsn, const u8 *addr);
IBSS RSN: Clear IBSS RSN peers based on peer lost events
2011-03-18 11:04:46 -04:00
void ibss_rsn_stop(struct ibss_rsn *ibss_rsn, const u8 *peermac);
Process received EAPOL frames in IBSS RSN code if in IBSS mode
2009-01-17 10:25:11 -05:00
int ibss_rsn_rx_eapol(struct ibss_rsn *ibss_rsn, const u8 *src_addr,
const u8 *buf, size_t len);
IBSS RSN: Set the PSK based on network configuration
2009-01-17 10:47:25 -05:00
void ibss_rsn_set_psk(struct ibss_rsn *ibss_rsn, const u8 *psk);
IBSS RSN: Add peer restart detection To better support the IBSS/RSN mechanism, wpa_supplicant has to be able to detect a possible peer reboot and in this case it should start a new EAPOL handshake. To perform such reboot detection wpa_supplicant has to perform an Open Authentication by sending an Authentication frame and then replying to it. IF an Authentication frame is received when the key have already been exchanged, wpa_supplicant understands that the peer has rebooted and can reset its state machine. Whenever a new peer is added to the IBSS wpa_supplicant will start the Open Authentication and only after having accomplished it will start the key exchange. If the driver does not support Authentication frame exchange initiated from user space, this step is skipped to maintain previous behavior (just go through EAPOL-Key frame processing). The Open Authentication was partly supported by the Linux kernel but now wpa_supplicant can register for Authentication frames, handle it in userspace and so avoid any possible race condition. Signed-hostap: Nicolas Cavallari <cavallar@lri.fr> Signed-hostap: Antonio Quartulli <antonio@open-mesh.com>
2013-07-21 08:56:53 -04:00
void ibss_rsn_handle_auth(struct ibss_rsn *ibss_rsn, const u8 *auth_frame,
size_t len);
Added initial step for IBSS RSN support This commit adds a new build option, CONFIG_IBSS_RSN=y, that can be used to enable RSN support for IBSS. This links in RSN Authenticator code from hostapd and adds code for managing per-peer information for IBSS. A new wpa_cli command or driver event can be used to request RSN authentication with an IBSS peer. New RSN Authenticator and Supplicant will be allocated for each peer. The basic state machine setup code is included in this commit, but the state machines are not properly started yet. In addition, some of the callback functions are not yet complete.
2009-01-14 18:21:55 -05:00
#endif /* IBSS_RSN_H */
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