text: /*
   * WPA definitions shared between hostapd and wpa_supplicant
   * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
   *
   * This software may be distributed under the terms of the BSD license.
   * See README for more details.
   */
  
  #ifndef WPA_COMMON_H
  #define WPA_COMMON_H
  
  #define WPA_MAX_SSID_LEN 32
  
  /* IEEE 802.11i */
  #define PMKID_LEN 16
  #define PMK_LEN 32
  #define WPA_REPLAY_COUNTER_LEN 8
  #define WPA_NONCE_LEN 32
  #define WPA_KEY_RSC_LEN 8
  #define WPA_GMK_LEN 32
  #define WPA_GTK_MAX_LEN 32
  
  #define WPA_ALLOWED_PAIRWISE_CIPHERS \
  (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | WPA_CIPHER_NONE)
  #define WPA_ALLOWED_GROUP_CIPHERS \
  (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP | WPA_CIPHER_TKIP | WPA_CIPHER_WEP104 | \
  WPA_CIPHER_WEP40)
  
  #define WPA_SELECTOR_LEN 4
  #define WPA_VERSION 1
  #define RSN_SELECTOR_LEN 4
  #define RSN_VERSION 1
  
  #define RSN_SELECTOR(a, b, c, d) \
  	((((u32) (a)) << 24) | (((u32) (b)) << 16) | (((u32) (c)) << 8) | \
  	 (u32) (d))
  
  #define WPA_AUTH_KEY_MGMT_NONE RSN_SELECTOR(0x00, 0x50, 0xf2, 0)
  #define WPA_AUTH_KEY_MGMT_UNSPEC_802_1X RSN_SELECTOR(0x00, 0x50, 0xf2, 1)
  #define WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0x00, 0x50, 0xf2, 2)
  #define WPA_AUTH_KEY_MGMT_CCKM RSN_SELECTOR(0x00, 0x40, 0x96, 0)
  #define WPA_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x50, 0xf2, 0)
  #define WPA_CIPHER_SUITE_WEP40 RSN_SELECTOR(0x00, 0x50, 0xf2, 1)
  #define WPA_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x50, 0xf2, 2)
  #if 0
  #define WPA_CIPHER_SUITE_WRAP RSN_SELECTOR(0x00, 0x50, 0xf2, 3)
  #endif
  #define WPA_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x50, 0xf2, 4)
  #define WPA_CIPHER_SUITE_WEP104 RSN_SELECTOR(0x00, 0x50, 0xf2, 5)
  
  
  #define RSN_AUTH_KEY_MGMT_UNSPEC_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 1)
  #ifdef CONFIG_TENDONIN
  #define RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0xa4, 0xc0, 0xe1, 2)
  #else
  #define RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 2)
  #endif
  #ifdef CONFIG_IEEE80211R
  #define RSN_AUTH_KEY_MGMT_FT_802_1X RSN_SELECTOR(0x00, 0x0f, 0xac, 3)
  #define RSN_AUTH_KEY_MGMT_FT_PSK RSN_SELECTOR(0x00, 0x0f, 0xac, 4)
  #endif /* CONFIG_IEEE80211R */
  #define RSN_AUTH_KEY_MGMT_802_1X_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 5)
  #define RSN_AUTH_KEY_MGMT_PSK_SHA256 RSN_SELECTOR(0x00, 0x0f, 0xac, 6)
  #define RSN_AUTH_KEY_MGMT_TPK_HANDSHAKE RSN_SELECTOR(0x00, 0x0f, 0xac, 7)
  #define RSN_AUTH_KEY_MGMT_SAE RSN_SELECTOR(0x00, 0x0f, 0xac, 8)
  #define RSN_AUTH_KEY_MGMT_FT_SAE RSN_SELECTOR(0x00, 0x0f, 0xac, 9)
  #define RSN_AUTH_KEY_MGMT_CCKM RSN_SELECTOR(0x00, 0x40, 0x96, 0x00)
  
  #define RSN_CIPHER_SUITE_NONE RSN_SELECTOR(0x00, 0x0f, 0xac, 0)
  #define RSN_CIPHER_SUITE_WEP40 RSN_SELECTOR(0x00, 0x0f, 0xac, 1)
  #define RSN_CIPHER_SUITE_TKIP RSN_SELECTOR(0x00, 0x0f, 0xac, 2)
  #if 0
  #define RSN_CIPHER_SUITE_WRAP RSN_SELECTOR(0x00, 0x0f, 0xac, 3)
  #endif
  #ifdef CONFIG_TENDONIN
  #define RSN_CIPHER_SUITE_CCMP RSN_SELECTOR(0xa4, 0xc0, 0xe1, 4)
  #else
  #define RSN_CIPHER_SUITE_CCMP RSN_SELECTOR(0x00, 0x0f, 0xac, 4)
  #endif
  #define RSN_CIPHER_SUITE_WEP104 RSN_SELECTOR(0x00, 0x0f, 0xac, 5)
  #ifdef CONFIG_IEEE80211W
  #define RSN_CIPHER_SUITE_AES_128_CMAC RSN_SELECTOR(0x00, 0x0f, 0xac, 6)
  #endif /* CONFIG_IEEE80211W */
  #define RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED RSN_SELECTOR(0x00, 0x0f, 0xac, 7)
  #define RSN_CIPHER_SUITE_GCMP RSN_SELECTOR(0x00, 0x0f, 0xac, 8)
  
  /* EAPOL-Key Key Data Encapsulation
   * GroupKey and PeerKey require encryption, otherwise, encryption is optional.
   */
  #define RSN_KEY_DATA_GROUPKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 1)
  #if 0
  #define RSN_KEY_DATA_STAKEY RSN_SELECTOR(0x00, 0x0f, 0xac, 2)
  #endif
  #define RSN_KEY_DATA_MAC_ADDR RSN_SELECTOR(0x00, 0x0f, 0xac, 3)
  #define RSN_KEY_DATA_PMKID RSN_SELECTOR(0x00, 0x0f, 0xac, 4)
  #ifdef CONFIG_PEERKEY
  #define RSN_KEY_DATA_SMK RSN_SELECTOR(0x00, 0x0f, 0xac, 5)
  #define RSN_KEY_DATA_NONCE RSN_SELECTOR(0x00, 0x0f, 0xac, 6)
  #define RSN_KEY_DATA_LIFETIME RSN_SELECTOR(0x00, 0x0f, 0xac, 7)
  #define RSN_KEY_DATA_ERROR RSN_SELECTOR(0x00, 0x0f, 0xac, 8)
  #endif /* CONFIG_PEERKEY */
  #ifdef CONFIG_IEEE80211W
  #define RSN_KEY_DATA_IGTK RSN_SELECTOR(0x00, 0x0f, 0xac, 9)
  #endif /* CONFIG_IEEE80211W */
  #define RSN_KEY_DATA_KEYID RSN_SELECTOR(0x00, 0x0f, 0xac, 10)
  #define RSN_KEY_DATA_MULTIBAND_GTK RSN_SELECTOR(0x00, 0x0f, 0xac, 11)
  #define RSN_KEY_DATA_MULTIBAND_KEYID RSN_SELECTOR(0x00, 0x0f, 0xac, 12)
  
  #define WPA_OUI_TYPE RSN_SELECTOR(0x00, 0x50, 0xf2, 1)
  
  #define RSN_SELECTOR_PUT(a, val) WPA_PUT_BE32((u8 *) (a), (val))
  #define RSN_SELECTOR_GET(a) WPA_GET_BE32((const u8 *) (a))
  
  #define RSN_NUM_REPLAY_COUNTERS_1 0
  #define RSN_NUM_REPLAY_COUNTERS_2 1
  #define RSN_NUM_REPLAY_COUNTERS_4 2
  #define RSN_NUM_REPLAY_COUNTERS_16 3
  
  
  #ifdef _MSC_VER
  #pragma pack(push, 1)
  #endif /* _MSC_VER */
  
  #ifdef CONFIG_IEEE80211W
  #define WPA_IGTK_LEN 16
  #endif /* CONFIG_IEEE80211W */
  
  
  /* IEEE 802.11, 7.3.2.25.3 RSN Capabilities */
  #define WPA_CAPABILITY_PREAUTH BIT(0)
  #define WPA_CAPABILITY_NO_PAIRWISE BIT(1)
  /* B2-B3: PTKSA Replay Counter */
  /* B4-B5: GTKSA Replay Counter */
  #define WPA_CAPABILITY_MFPR BIT(6)
  #define WPA_CAPABILITY_MFPC BIT(7)
  /* B8: Reserved */
  #define WPA_CAPABILITY_PEERKEY_ENABLED BIT(9)
  #define WPA_CAPABILITY_SPP_A_MSDU_CAPABLE BIT(10)
  #define WPA_CAPABILITY_SPP_A_MSDU_REQUIRED BIT(11)
  #define WPA_CAPABILITY_PBAC BIT(12)
  #define WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST BIT(13)
  /* B14-B15: Reserved */
  
  
  /* IEEE 802.11r */
  #define MOBILITY_DOMAIN_ID_LEN 2
  #define FT_R0KH_ID_MAX_LEN 48
  #define FT_R1KH_ID_LEN 6
  #define WPA_PMK_NAME_LEN 16
  
  
  /* IEEE 802.11, 8.5.2 EAPOL-Key frames */
  #define WPA_KEY_INFO_TYPE_MASK ((u16) (BIT(0) | BIT(1) | BIT(2)))
  #define WPA_KEY_INFO_TYPE_HMAC_MD5_RC4 BIT(0)
  #define WPA_KEY_INFO_TYPE_HMAC_SHA1_AES BIT(1)
  #define WPA_KEY_INFO_TYPE_AES_128_CMAC 3
  #define WPA_KEY_INFO_KEY_TYPE BIT(3) /* 1 = Pairwise, 0 = Group key */
  /* bit4..5 is used in WPA, but is reserved in IEEE 802.11i/RSN */
  #define WPA_KEY_INFO_KEY_INDEX_MASK (BIT(4) | BIT(5))
  #define WPA_KEY_INFO_KEY_INDEX_SHIFT 4
  #define WPA_KEY_INFO_INSTALL BIT(6) /* pairwise */
  #define WPA_KEY_INFO_TXRX BIT(6) /* group */
  #define WPA_KEY_INFO_ACK BIT(7)
  #define WPA_KEY_INFO_MIC BIT(8)
  #define WPA_KEY_INFO_SECURE BIT(9)
  #define WPA_KEY_INFO_ERROR BIT(10)
  #define WPA_KEY_INFO_REQUEST BIT(11)
  #define WPA_KEY_INFO_ENCR_KEY_DATA BIT(12) /* IEEE 802.11i/RSN only */
  #define WPA_KEY_INFO_SMK_MESSAGE BIT(13)
  
  
  struct wpa_eapol_key {
  	u8 type;
  	/* Note: key_info, key_length, and key_data_length are unaligned */
  	u8 key_info[2]; /* big endian */
  	u8 key_length[2]; /* big endian */
  	u8 replay_counter[WPA_REPLAY_COUNTER_LEN];
  	u8 key_nonce[WPA_NONCE_LEN];
  	u8 key_iv[16];
  	u8 key_rsc[WPA_KEY_RSC_LEN];
  	u8 key_id[8]; /* Reserved in IEEE 802.11i/RSN */
  	u8 key_mic[16];
  	u8 key_data_length[2]; /* big endian */
  	/* followed by key_data_length bytes of key_data */
  } STRUCT_PACKED;
  
  /**
   * struct wpa_ptk - WPA Pairwise Transient Key
   * IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
   */
  struct wpa_ptk {
  	u8 kck[16]; /* EAPOL-Key Key Confirmation Key (KCK) */
  	u8 kek[16]; /* EAPOL-Key Key Encryption Key (KEK) */
  	u8 tk1[16]; /* Temporal Key 1 (TK1) */
  	union {
  		u8 tk2[16]; /* Temporal Key 2 (TK2) */
  		struct {
  			u8 tx_mic_key[8];
  			u8 rx_mic_key[8];
  		} auth;
  	} u;
  } STRUCT_PACKED;
  
  
  /* WPA IE version 1
   * 00-50-f2:1 (OUI:OUI type)
   * 0x01 0x00 (version; little endian)
   * (all following fields are optional:)
   * Group Suite Selector (4 octets) (default: TKIP)
   * Pairwise Suite Count (2 octets, little endian) (default: 1)
   * Pairwise Suite List (4 * n octets) (default: TKIP)
   * Authenticated Key Management Suite Count (2 octets, little endian)
   *    (default: 1)
   * Authenticated Key Management Suite List (4 * n octets)
   *    (default: unspec 802.1X)
   * WPA Capabilities (2 octets, little endian) (default: 0)
   */
  
  struct wpa_ie_hdr {
  	u8 elem_id;
  	u8 len;
  	u8 oui[4]; /* 24-bit OUI followed by 8-bit OUI type */
  	u8 version[2]; /* little endian */
  } STRUCT_PACKED;
  
  
  /* 1/4: PMKID
   * 2/4: RSN IE
   * 3/4: one or two RSN IEs + GTK IE (encrypted)
   * 4/4: empty
   * 1/2: GTK IE (encrypted)
   * 2/2: empty
   */
  
  /* RSN IE version 1
   * 0x01 0x00 (version; little endian)
   * (all following fields are optional:)
   * Group Suite Selector (4 octets) (default: CCMP)
   * Pairwise Suite Count (2 octets, little endian) (default: 1)
   * Pairwise Suite List (4 * n octets) (default: CCMP)
   * Authenticated Key Management Suite Count (2 octets, little endian)
   *    (default: 1)
   * Authenticated Key Management Suite List (4 * n octets)
   *    (default: unspec 802.1X)
   * RSN Capabilities (2 octets, little endian) (default: 0)
   * PMKID Count (2 octets) (default: 0)
   * PMKID List (16 * n octets)
   * Management Group Cipher Suite (4 octets) (default: AES-128-CMAC)
   */
  
  struct rsn_ie_hdr {
  	u8 elem_id; /* WLAN_EID_RSN */
  	u8 len;
  	u8 version[2]; /* little endian */
  } STRUCT_PACKED;
  
  
  #ifdef CONFIG_PEERKEY
  enum {
  	STK_MUI_4WAY_STA_AP = 1,
  	STK_MUI_4WAY_STAT_STA = 2,
  	STK_MUI_GTK = 3,
  	STK_MUI_SMK = 4
  };
  
  enum {
  	STK_ERR_STA_NR = 1,
  	STK_ERR_STA_NRSN = 2,
  	STK_ERR_CPHR_NS = 3,
  	STK_ERR_NO_STSL = 4
  };
  #endif /* CONFIG_PEERKEY */
  
  struct rsn_error_kde {
  	be16 mui;
  	be16 error_type;
  } STRUCT_PACKED;
  
  #ifdef CONFIG_IEEE80211W
  struct wpa_igtk_kde {
  	u8 keyid[2];
  	u8 pn[6];
  	u8 igtk[WPA_IGTK_LEN];
  } STRUCT_PACKED;
  #endif /* CONFIG_IEEE80211W */
  
  #ifdef CONFIG_IEEE80211R
  struct rsn_mdie {
  	u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
  	u8 ft_capab;
  } STRUCT_PACKED;
  
  #define RSN_FT_CAPAB_FT_OVER_DS BIT(0)
  #define RSN_FT_CAPAB_FT_RESOURCE_REQ_SUPP BIT(1)
  
  struct rsn_ftie {
  	u8 mic_control[2];
  	u8 mic[16];
  	u8 anonce[WPA_NONCE_LEN];
  	u8 snonce[WPA_NONCE_LEN];
  	/* followed by optional parameters */
  } STRUCT_PACKED;
  
  #define FTIE_SUBELEM_R1KH_ID 1
  #define FTIE_SUBELEM_GTK 2
  #define FTIE_SUBELEM_R0KH_ID 3
  #define FTIE_SUBELEM_IGTK 4
  
  struct rsn_rdie {
  	u8 id;
  	u8 descr_count;
  	le16 status_code;
  } STRUCT_PACKED;
  
  #endif /* CONFIG_IEEE80211R */
  
  #ifdef _MSC_VER
  #pragma pack(pop)
  #endif /* _MSC_VER */
  
  
  int wpa_eapol_key_mic(const u8 *key, int ver, const u8 *buf, size_t len,
  		      u8 *mic);
  void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
  		    const u8 *addr1, const u8 *addr2,
  		    const u8 *nonce1, const u8 *nonce2,
  		    u8 *ptk, size_t ptk_len, int use_sha256);
  
  #ifdef CONFIG_IEEE80211R
  int wpa_ft_mic(const u8 *kck, const u8 *sta_addr, const u8 *ap_addr,
  	       u8 transaction_seqnum, const u8 *mdie, size_t mdie_len,
  	       const u8 *ftie, size_t ftie_len,
  	       const u8 *rsnie, size_t rsnie_len,
  	       const u8 *ric, size_t ric_len, u8 *mic);
  void wpa_derive_pmk_r0(const u8 *xxkey, size_t xxkey_len,
  		       const u8 *ssid, size_t ssid_len,
  		       const u8 *mdid, const u8 *r0kh_id, size_t r0kh_id_len,
  		       const u8 *s0kh_id, u8 *pmk_r0, u8 *pmk_r0_name);
  void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id,
  			    const u8 *s1kh_id, u8 *pmk_r1_name);
  void wpa_derive_pmk_r1(const u8 *pmk_r0, const u8 *pmk_r0_name,
  		       const u8 *r1kh_id, const u8 *s1kh_id,
  		       u8 *pmk_r1, u8 *pmk_r1_name);
  void wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
  		       const u8 *sta_addr, const u8 *bssid,
  		       const u8 *pmk_r1_name,
  		       u8 *ptk, size_t ptk_len, u8 *ptk_name);
  #endif /* CONFIG_IEEE80211R */
  
  struct wpa_ie_data {
  	int proto;
  	int pairwise_cipher;
  	int group_cipher;
  	int key_mgmt;
  	int capabilities;
  	size_t num_pmkid;
  	const u8 *pmkid;
  	int mgmt_group_cipher;
  };
  
  
  int wpa_parse_wpa_ie_rsn(const u8 *rsn_ie, size_t rsn_ie_len,
  			 struct wpa_ie_data *data);
  int wpa_parse_wpa_ie_wpa(const u8 *wpa_ie, size_t wpa_ie_len,
  			 struct wpa_ie_data *data);
  
  void rsn_pmkid(const u8 *pmk, size_t pmk_len, const u8 *aa, const u8 *spa,
  	       u8 *pmkid, int use_sha256);
  
  const char * wpa_cipher_txt(int cipher);
  const char * wpa_key_mgmt_txt(int key_mgmt, int proto);
  int wpa_compare_rsn_ie(int ft_initial_assoc,
  		       const u8 *ie1, size_t ie1len,
  		       const u8 *ie2, size_t ie2len);
  int wpa_insert_pmkid(u8 *ies, size_t ies_len, const u8 *pmkid);
  
  struct wpa_ft_ies {
  	const u8 *mdie;
  	size_t mdie_len;
  	const u8 *ftie;
  	size_t ftie_len;
  	const u8 *r1kh_id;
  	const u8 *gtk;
  	size_t gtk_len;
  	const u8 *r0kh_id;
  	size_t r0kh_id_len;
  	const u8 *rsn;
  	size_t rsn_len;
  	const u8 *rsn_pmkid;
  	const u8 *tie;
  	size_t tie_len;
  	const u8 *igtk;
  	size_t igtk_len;
  	const u8 *ric;
  	size_t ric_len;
  };
  
  int wpa_ft_parse_ies(const u8 *ies, size_t ies_len, struct wpa_ft_ies *parse);
  
  int wpa_cipher_key_len(int cipher);
  int wpa_cipher_rsc_len(int cipher);
  int wpa_cipher_to_alg(int cipher);
  enum wpa_cipher wpa_cipher_to_suite_driver(int cipher);
  int wpa_cipher_valid_pairwise(int cipher);
  u32 wpa_cipher_to_suite(int proto, int cipher);
  int rsn_cipher_put_suites(u8 *pos, int ciphers);
  int wpa_cipher_put_suites(u8 *pos, int ciphers);
  int wpa_pick_pairwise_cipher(int ciphers, int none_allowed);
  int wpa_pick_group_cipher(int ciphers);
  int wpa_parse_cipher(const char *value);
  int wpa_write_ciphers(char *start, char *end, int ciphers, const char *delim);
  int wpa_select_ap_group_cipher(int wpa, int wpa_pairwise, int rsn_pairwise);
  
  #endif /* WPA_COMMON_H */
  