mirror of
https://github.com/vanhoefm/fragattacks.git
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6c460eaf7e
This adds hostapd support for the new WLAN-Pairwise-Cipher, WLAN-Group-Cipher, WLAN-AKM-Suite, and WLAN-Group-Mgmt-Pairwise-Cipher attributes defined in RFC 7268. These attributes are added to RADIUS messages when the station negotiates use of WPA/RSN. Signed-off-by: Jouni Malinen <j@w1.fi>
316 lines
10 KiB
C
316 lines
10 KiB
C
/*
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* RADIUS message processing
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* Copyright (c) 2002-2009, 2012, 2014, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef RADIUS_H
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#define RADIUS_H
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/* RFC 2865 - RADIUS */
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#ifdef _MSC_VER
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#pragma pack(push, 1)
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#endif /* _MSC_VER */
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struct radius_hdr {
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u8 code;
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u8 identifier;
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be16 length; /* including this header */
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u8 authenticator[16];
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/* followed by length-20 octets of attributes */
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} STRUCT_PACKED;
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enum { RADIUS_CODE_ACCESS_REQUEST = 1,
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RADIUS_CODE_ACCESS_ACCEPT = 2,
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RADIUS_CODE_ACCESS_REJECT = 3,
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RADIUS_CODE_ACCOUNTING_REQUEST = 4,
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RADIUS_CODE_ACCOUNTING_RESPONSE = 5,
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RADIUS_CODE_ACCESS_CHALLENGE = 11,
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RADIUS_CODE_STATUS_SERVER = 12,
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RADIUS_CODE_STATUS_CLIENT = 13,
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RADIUS_CODE_DISCONNECT_REQUEST = 40,
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RADIUS_CODE_DISCONNECT_ACK = 41,
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RADIUS_CODE_DISCONNECT_NAK = 42,
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RADIUS_CODE_COA_REQUEST = 43,
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RADIUS_CODE_COA_ACK = 44,
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RADIUS_CODE_COA_NAK = 45,
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RADIUS_CODE_RESERVED = 255
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};
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struct radius_attr_hdr {
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u8 type;
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u8 length; /* including this header */
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/* followed by length-2 octets of attribute value */
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} STRUCT_PACKED;
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#define RADIUS_MAX_ATTR_LEN (255 - sizeof(struct radius_attr_hdr))
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enum { RADIUS_ATTR_USER_NAME = 1,
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RADIUS_ATTR_USER_PASSWORD = 2,
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RADIUS_ATTR_NAS_IP_ADDRESS = 4,
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RADIUS_ATTR_NAS_PORT = 5,
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RADIUS_ATTR_FRAMED_MTU = 12,
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RADIUS_ATTR_REPLY_MESSAGE = 18,
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RADIUS_ATTR_STATE = 24,
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RADIUS_ATTR_CLASS = 25,
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RADIUS_ATTR_VENDOR_SPECIFIC = 26,
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RADIUS_ATTR_SESSION_TIMEOUT = 27,
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RADIUS_ATTR_IDLE_TIMEOUT = 28,
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RADIUS_ATTR_TERMINATION_ACTION = 29,
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RADIUS_ATTR_CALLED_STATION_ID = 30,
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RADIUS_ATTR_CALLING_STATION_ID = 31,
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RADIUS_ATTR_NAS_IDENTIFIER = 32,
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RADIUS_ATTR_PROXY_STATE = 33,
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RADIUS_ATTR_ACCT_STATUS_TYPE = 40,
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RADIUS_ATTR_ACCT_DELAY_TIME = 41,
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RADIUS_ATTR_ACCT_INPUT_OCTETS = 42,
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RADIUS_ATTR_ACCT_OUTPUT_OCTETS = 43,
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RADIUS_ATTR_ACCT_SESSION_ID = 44,
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RADIUS_ATTR_ACCT_AUTHENTIC = 45,
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RADIUS_ATTR_ACCT_SESSION_TIME = 46,
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RADIUS_ATTR_ACCT_INPUT_PACKETS = 47,
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RADIUS_ATTR_ACCT_OUTPUT_PACKETS = 48,
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RADIUS_ATTR_ACCT_TERMINATE_CAUSE = 49,
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RADIUS_ATTR_ACCT_MULTI_SESSION_ID = 50,
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RADIUS_ATTR_ACCT_LINK_COUNT = 51,
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RADIUS_ATTR_ACCT_INPUT_GIGAWORDS = 52,
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RADIUS_ATTR_ACCT_OUTPUT_GIGAWORDS = 53,
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RADIUS_ATTR_EVENT_TIMESTAMP = 55,
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RADIUS_ATTR_NAS_PORT_TYPE = 61,
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RADIUS_ATTR_TUNNEL_TYPE = 64,
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RADIUS_ATTR_TUNNEL_MEDIUM_TYPE = 65,
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RADIUS_ATTR_TUNNEL_PASSWORD = 69,
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RADIUS_ATTR_CONNECT_INFO = 77,
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RADIUS_ATTR_EAP_MESSAGE = 79,
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RADIUS_ATTR_MESSAGE_AUTHENTICATOR = 80,
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RADIUS_ATTR_TUNNEL_PRIVATE_GROUP_ID = 81,
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RADIUS_ATTR_ACCT_INTERIM_INTERVAL = 85,
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RADIUS_ATTR_CHARGEABLE_USER_IDENTITY = 89,
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RADIUS_ATTR_NAS_IPV6_ADDRESS = 95,
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RADIUS_ATTR_ERROR_CAUSE = 101,
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RADIUS_ATTR_EAP_KEY_NAME = 102,
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RADIUS_ATTR_MOBILITY_DOMAIN_ID = 177,
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RADIUS_ATTR_WLAN_HESSID = 181,
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RADIUS_ATTR_WLAN_PAIRWISE_CIPHER = 186,
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RADIUS_ATTR_WLAN_GROUP_CIPHER = 187,
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RADIUS_ATTR_WLAN_AKM_SUITE = 188,
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RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER = 189,
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};
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/* Termination-Action */
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#define RADIUS_TERMINATION_ACTION_DEFAULT 0
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#define RADIUS_TERMINATION_ACTION_RADIUS_REQUEST 1
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/* NAS-Port-Type */
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#define RADIUS_NAS_PORT_TYPE_IEEE_802_11 19
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/* Acct-Status-Type */
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#define RADIUS_ACCT_STATUS_TYPE_START 1
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#define RADIUS_ACCT_STATUS_TYPE_STOP 2
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#define RADIUS_ACCT_STATUS_TYPE_INTERIM_UPDATE 3
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#define RADIUS_ACCT_STATUS_TYPE_ACCOUNTING_ON 7
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#define RADIUS_ACCT_STATUS_TYPE_ACCOUNTING_OFF 8
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/* Acct-Authentic */
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#define RADIUS_ACCT_AUTHENTIC_RADIUS 1
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#define RADIUS_ACCT_AUTHENTIC_LOCAL 2
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#define RADIUS_ACCT_AUTHENTIC_REMOTE 3
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/* Acct-Terminate-Cause */
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#define RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST 1
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#define RADIUS_ACCT_TERMINATE_CAUSE_LOST_CARRIER 2
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#define RADIUS_ACCT_TERMINATE_CAUSE_LOST_SERVICE 3
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#define RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT 4
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#define RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT 5
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#define RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_RESET 6
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#define RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_REBOOT 7
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#define RADIUS_ACCT_TERMINATE_CAUSE_PORT_ERROR 8
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#define RADIUS_ACCT_TERMINATE_CAUSE_NAS_ERROR 9
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#define RADIUS_ACCT_TERMINATE_CAUSE_NAS_REQUEST 10
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#define RADIUS_ACCT_TERMINATE_CAUSE_NAS_REBOOT 11
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#define RADIUS_ACCT_TERMINATE_CAUSE_PORT_UNNEEDED 12
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#define RADIUS_ACCT_TERMINATE_CAUSE_PORT_PREEMPTED 13
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#define RADIUS_ACCT_TERMINATE_CAUSE_PORT_SUSPENDED 14
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#define RADIUS_ACCT_TERMINATE_CAUSE_SERVICE_UNAVAILABLE 15
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#define RADIUS_ACCT_TERMINATE_CAUSE_CALLBACK 16
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#define RADIUS_ACCT_TERMINATE_CAUSE_USER_ERROR 17
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#define RADIUS_ACCT_TERMINATE_CAUSE_HOST_REQUEST 18
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#define RADIUS_TUNNEL_TAGS 32
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/* Tunnel-Type */
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#define RADIUS_TUNNEL_TYPE_PPTP 1
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#define RADIUS_TUNNEL_TYPE_L2TP 3
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#define RADIUS_TUNNEL_TYPE_IPIP 7
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#define RADIUS_TUNNEL_TYPE_GRE 10
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#define RADIUS_TUNNEL_TYPE_VLAN 13
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/* Tunnel-Medium-Type */
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#define RADIUS_TUNNEL_MEDIUM_TYPE_IPV4 1
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#define RADIUS_TUNNEL_MEDIUM_TYPE_IPV6 2
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#define RADIUS_TUNNEL_MEDIUM_TYPE_802 6
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struct radius_attr_vendor {
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u8 vendor_type;
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u8 vendor_length;
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} STRUCT_PACKED;
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#define RADIUS_VENDOR_ID_CISCO 9
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#define RADIUS_CISCO_AV_PAIR 1
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/* RFC 2548 - Microsoft Vendor-specific RADIUS Attributes */
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#define RADIUS_VENDOR_ID_MICROSOFT 311
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enum { RADIUS_VENDOR_ATTR_MS_MPPE_SEND_KEY = 16,
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RADIUS_VENDOR_ATTR_MS_MPPE_RECV_KEY = 17
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};
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/* Hotspot 2.0 - WFA Vendor-specific RADIUS Attributes */
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#define RADIUS_VENDOR_ID_WFA 40808
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enum {
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RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION = 1,
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RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION = 2,
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RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION = 3,
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RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ = 4,
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RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL = 5,
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};
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#ifdef _MSC_VER
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#pragma pack(pop)
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#endif /* _MSC_VER */
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struct radius_ms_mppe_keys {
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u8 *send;
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size_t send_len;
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u8 *recv;
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size_t recv_len;
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};
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struct radius_msg;
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/* Default size to be allocated for new RADIUS messages */
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#define RADIUS_DEFAULT_MSG_SIZE 1024
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/* Default size to be allocated for attribute array */
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#define RADIUS_DEFAULT_ATTR_COUNT 16
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/* MAC address ASCII format for IEEE 802.1X use
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* (draft-congdon-radius-8021x-20.txt) */
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#define RADIUS_802_1X_ADDR_FORMAT "%02X-%02X-%02X-%02X-%02X-%02X"
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/* MAC address ASCII format for non-802.1X use */
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#define RADIUS_ADDR_FORMAT "%02x%02x%02x%02x%02x%02x"
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struct radius_hdr * radius_msg_get_hdr(struct radius_msg *msg);
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struct wpabuf * radius_msg_get_buf(struct radius_msg *msg);
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struct radius_msg * radius_msg_new(u8 code, u8 identifier);
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void radius_msg_free(struct radius_msg *msg);
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void radius_msg_dump(struct radius_msg *msg);
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int radius_msg_finish(struct radius_msg *msg, const u8 *secret,
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size_t secret_len);
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int radius_msg_finish_srv(struct radius_msg *msg, const u8 *secret,
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size_t secret_len, const u8 *req_authenticator);
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int radius_msg_finish_das_resp(struct radius_msg *msg, const u8 *secret,
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size_t secret_len,
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const struct radius_hdr *req_hdr);
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void radius_msg_finish_acct(struct radius_msg *msg, const u8 *secret,
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size_t secret_len);
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void radius_msg_finish_acct_resp(struct radius_msg *msg, const u8 *secret,
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size_t secret_len,
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const u8 *req_authenticator);
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int radius_msg_verify_acct_req(struct radius_msg *msg, const u8 *secret,
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size_t secret_len);
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int radius_msg_verify_das_req(struct radius_msg *msg, const u8 *secret,
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size_t secret_len);
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struct radius_attr_hdr * radius_msg_add_attr(struct radius_msg *msg, u8 type,
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const u8 *data, size_t data_len);
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struct radius_msg * radius_msg_parse(const u8 *data, size_t len);
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int radius_msg_add_eap(struct radius_msg *msg, const u8 *data,
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size_t data_len);
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struct wpabuf * radius_msg_get_eap(struct radius_msg *msg);
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int radius_msg_verify(struct radius_msg *msg, const u8 *secret,
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size_t secret_len, struct radius_msg *sent_msg,
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int auth);
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int radius_msg_verify_msg_auth(struct radius_msg *msg, const u8 *secret,
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size_t secret_len, const u8 *req_auth);
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int radius_msg_copy_attr(struct radius_msg *dst, struct radius_msg *src,
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u8 type);
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void radius_msg_make_authenticator(struct radius_msg *msg,
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const u8 *data, size_t len);
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struct radius_ms_mppe_keys *
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radius_msg_get_ms_keys(struct radius_msg *msg, struct radius_msg *sent_msg,
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const u8 *secret, size_t secret_len);
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struct radius_ms_mppe_keys *
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radius_msg_get_cisco_keys(struct radius_msg *msg, struct radius_msg *sent_msg,
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const u8 *secret, size_t secret_len);
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int radius_msg_add_mppe_keys(struct radius_msg *msg,
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const u8 *req_authenticator,
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const u8 *secret, size_t secret_len,
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const u8 *send_key, size_t send_key_len,
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const u8 *recv_key, size_t recv_key_len);
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int radius_msg_add_wfa(struct radius_msg *msg, u8 subtype, const u8 *data,
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size_t len);
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int radius_user_password_hide(struct radius_msg *msg,
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const u8 *data, size_t data_len,
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const u8 *secret, size_t secret_len,
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u8 *buf, size_t buf_len);
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struct radius_attr_hdr *
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radius_msg_add_attr_user_password(struct radius_msg *msg,
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const u8 *data, size_t data_len,
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const u8 *secret, size_t secret_len);
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int radius_msg_get_attr(struct radius_msg *msg, u8 type, u8 *buf, size_t len);
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int radius_msg_get_vlanid(struct radius_msg *msg);
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char * radius_msg_get_tunnel_password(struct radius_msg *msg, int *keylen,
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const u8 *secret, size_t secret_len,
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struct radius_msg *sent_msg, size_t n);
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static inline int radius_msg_add_attr_int32(struct radius_msg *msg, u8 type,
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u32 value)
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{
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u32 val = htonl(value);
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return radius_msg_add_attr(msg, type, (u8 *) &val, 4) != NULL;
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}
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static inline int radius_msg_get_attr_int32(struct radius_msg *msg, u8 type,
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u32 *value)
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{
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u32 val;
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int res;
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res = radius_msg_get_attr(msg, type, (u8 *) &val, 4);
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if (res != 4)
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return -1;
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*value = ntohl(val);
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return 0;
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}
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int radius_msg_get_attr_ptr(struct radius_msg *msg, u8 type, u8 **buf,
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size_t *len, const u8 *start);
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int radius_msg_count_attr(struct radius_msg *msg, u8 type, int min_len);
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struct radius_attr_data {
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u8 *data;
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size_t len;
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};
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struct radius_class_data {
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struct radius_attr_data *attr;
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size_t count;
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};
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void radius_free_class(struct radius_class_data *c);
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int radius_copy_class(struct radius_class_data *dst,
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const struct radius_class_data *src);
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u8 radius_msg_find_unlisted_attr(struct radius_msg *msg, u8 *attrs);
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#endif /* RADIUS_H */
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