LCOV - code coverage report
Current view: top level - src/radius - radius.h (source / functions) Hit Total Coverage
Test: wpa_supplicant/hostapd combined for hwsim test run 1475438200 Lines: 9 9 100.0 %
Date: 2016-10-02 Functions: 2 2 100.0 %

          Line data    Source code
       1             : /*
       2             :  * RADIUS message processing
       3             :  * Copyright (c) 2002-2009, 2012, 2014-2015, Jouni Malinen <j@w1.fi>
       4             :  *
       5             :  * This software may be distributed under the terms of the BSD license.
       6             :  * See README for more details.
       7             :  */
       8             : 
       9             : #ifndef RADIUS_H
      10             : #define RADIUS_H
      11             : 
      12             : /* RFC 2865 - RADIUS */
      13             : 
      14             : #ifdef _MSC_VER
      15             : #pragma pack(push, 1)
      16             : #endif /* _MSC_VER */
      17             : 
      18             : struct radius_hdr {
      19             :         u8 code;
      20             :         u8 identifier;
      21             :         be16 length; /* including this header */
      22             :         u8 authenticator[16];
      23             :         /* followed by length-20 octets of attributes */
      24             : } STRUCT_PACKED;
      25             : 
      26             : enum { RADIUS_CODE_ACCESS_REQUEST = 1,
      27             :        RADIUS_CODE_ACCESS_ACCEPT = 2,
      28             :        RADIUS_CODE_ACCESS_REJECT = 3,
      29             :        RADIUS_CODE_ACCOUNTING_REQUEST = 4,
      30             :        RADIUS_CODE_ACCOUNTING_RESPONSE = 5,
      31             :        RADIUS_CODE_ACCESS_CHALLENGE = 11,
      32             :        RADIUS_CODE_STATUS_SERVER = 12,
      33             :        RADIUS_CODE_STATUS_CLIENT = 13,
      34             :        RADIUS_CODE_DISCONNECT_REQUEST = 40,
      35             :        RADIUS_CODE_DISCONNECT_ACK = 41,
      36             :        RADIUS_CODE_DISCONNECT_NAK = 42,
      37             :        RADIUS_CODE_COA_REQUEST = 43,
      38             :        RADIUS_CODE_COA_ACK = 44,
      39             :        RADIUS_CODE_COA_NAK = 45,
      40             :        RADIUS_CODE_RESERVED = 255
      41             : };
      42             : 
      43             : struct radius_attr_hdr {
      44             :         u8 type;
      45             :         u8 length; /* including this header */
      46             :         /* followed by length-2 octets of attribute value */
      47             : } STRUCT_PACKED;
      48             : 
      49             : #define RADIUS_MAX_ATTR_LEN (255 - sizeof(struct radius_attr_hdr))
      50             : 
      51             : enum { RADIUS_ATTR_USER_NAME = 1,
      52             :        RADIUS_ATTR_USER_PASSWORD = 2,
      53             :        RADIUS_ATTR_NAS_IP_ADDRESS = 4,
      54             :        RADIUS_ATTR_NAS_PORT = 5,
      55             :        RADIUS_ATTR_SERVICE_TYPE = 6,
      56             :        RADIUS_ATTR_FRAMED_IP_ADDRESS = 8,
      57             :        RADIUS_ATTR_FRAMED_MTU = 12,
      58             :        RADIUS_ATTR_REPLY_MESSAGE = 18,
      59             :        RADIUS_ATTR_STATE = 24,
      60             :        RADIUS_ATTR_CLASS = 25,
      61             :        RADIUS_ATTR_VENDOR_SPECIFIC = 26,
      62             :        RADIUS_ATTR_SESSION_TIMEOUT = 27,
      63             :        RADIUS_ATTR_IDLE_TIMEOUT = 28,
      64             :        RADIUS_ATTR_TERMINATION_ACTION = 29,
      65             :        RADIUS_ATTR_CALLED_STATION_ID = 30,
      66             :        RADIUS_ATTR_CALLING_STATION_ID = 31,
      67             :        RADIUS_ATTR_NAS_IDENTIFIER = 32,
      68             :        RADIUS_ATTR_PROXY_STATE = 33,
      69             :        RADIUS_ATTR_ACCT_STATUS_TYPE = 40,
      70             :        RADIUS_ATTR_ACCT_DELAY_TIME = 41,
      71             :        RADIUS_ATTR_ACCT_INPUT_OCTETS = 42,
      72             :        RADIUS_ATTR_ACCT_OUTPUT_OCTETS = 43,
      73             :        RADIUS_ATTR_ACCT_SESSION_ID = 44,
      74             :        RADIUS_ATTR_ACCT_AUTHENTIC = 45,
      75             :        RADIUS_ATTR_ACCT_SESSION_TIME = 46,
      76             :        RADIUS_ATTR_ACCT_INPUT_PACKETS = 47,
      77             :        RADIUS_ATTR_ACCT_OUTPUT_PACKETS = 48,
      78             :        RADIUS_ATTR_ACCT_TERMINATE_CAUSE = 49,
      79             :        RADIUS_ATTR_ACCT_MULTI_SESSION_ID = 50,
      80             :        RADIUS_ATTR_ACCT_LINK_COUNT = 51,
      81             :        RADIUS_ATTR_ACCT_INPUT_GIGAWORDS = 52,
      82             :        RADIUS_ATTR_ACCT_OUTPUT_GIGAWORDS = 53,
      83             :        RADIUS_ATTR_EVENT_TIMESTAMP = 55,
      84             :        RADIUS_ATTR_EGRESS_VLANID = 56,
      85             :        RADIUS_ATTR_NAS_PORT_TYPE = 61,
      86             :        RADIUS_ATTR_TUNNEL_TYPE = 64,
      87             :        RADIUS_ATTR_TUNNEL_MEDIUM_TYPE = 65,
      88             :        RADIUS_ATTR_TUNNEL_PASSWORD = 69,
      89             :        RADIUS_ATTR_CONNECT_INFO = 77,
      90             :        RADIUS_ATTR_EAP_MESSAGE = 79,
      91             :        RADIUS_ATTR_MESSAGE_AUTHENTICATOR = 80,
      92             :        RADIUS_ATTR_TUNNEL_PRIVATE_GROUP_ID = 81,
      93             :        RADIUS_ATTR_ACCT_INTERIM_INTERVAL = 85,
      94             :        RADIUS_ATTR_CHARGEABLE_USER_IDENTITY = 89,
      95             :        RADIUS_ATTR_NAS_IPV6_ADDRESS = 95,
      96             :        RADIUS_ATTR_ERROR_CAUSE = 101,
      97             :        RADIUS_ATTR_EAP_KEY_NAME = 102,
      98             :        RADIUS_ATTR_OPERATOR_NAME = 126,
      99             :        RADIUS_ATTR_LOCATION_INFO = 127,
     100             :        RADIUS_ATTR_LOCATION_DATA = 128,
     101             :        RADIUS_ATTR_BASIC_LOCATION_POLICY_RULES = 129,
     102             :        RADIUS_ATTR_EXTENDED_LOCATION_POLICY_RULES = 130,
     103             :        RADIUS_ATTR_LOCATION_CAPABLE = 131,
     104             :        RADIUS_ATTR_REQUESTED_LOCATION_INFO = 132,
     105             :        RADIUS_ATTR_MOBILITY_DOMAIN_ID = 177,
     106             :        RADIUS_ATTR_WLAN_HESSID = 181,
     107             :        RADIUS_ATTR_WLAN_PAIRWISE_CIPHER = 186,
     108             :        RADIUS_ATTR_WLAN_GROUP_CIPHER = 187,
     109             :        RADIUS_ATTR_WLAN_AKM_SUITE = 188,
     110             :        RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER = 189,
     111             : };
     112             : 
     113             : 
     114             : /* Service-Type values (RFC 2865, 5.6) */
     115             : #define RADIUS_SERVICE_TYPE_FRAMED 2
     116             : 
     117             : /* Termination-Action */
     118             : #define RADIUS_TERMINATION_ACTION_DEFAULT 0
     119             : #define RADIUS_TERMINATION_ACTION_RADIUS_REQUEST 1
     120             : 
     121             : /* NAS-Port-Type */
     122             : #define RADIUS_NAS_PORT_TYPE_IEEE_802_11 19
     123             : 
     124             : /* Acct-Status-Type */
     125             : #define RADIUS_ACCT_STATUS_TYPE_START 1
     126             : #define RADIUS_ACCT_STATUS_TYPE_STOP 2
     127             : #define RADIUS_ACCT_STATUS_TYPE_INTERIM_UPDATE 3
     128             : #define RADIUS_ACCT_STATUS_TYPE_ACCOUNTING_ON 7
     129             : #define RADIUS_ACCT_STATUS_TYPE_ACCOUNTING_OFF 8
     130             : 
     131             : /* Acct-Authentic */
     132             : #define RADIUS_ACCT_AUTHENTIC_RADIUS 1
     133             : #define RADIUS_ACCT_AUTHENTIC_LOCAL 2
     134             : #define RADIUS_ACCT_AUTHENTIC_REMOTE 3
     135             : 
     136             : /* Acct-Terminate-Cause */
     137             : #define RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST 1
     138             : #define RADIUS_ACCT_TERMINATE_CAUSE_LOST_CARRIER 2
     139             : #define RADIUS_ACCT_TERMINATE_CAUSE_LOST_SERVICE 3
     140             : #define RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT 4
     141             : #define RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT 5
     142             : #define RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_RESET 6
     143             : #define RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_REBOOT 7
     144             : #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_ERROR 8
     145             : #define RADIUS_ACCT_TERMINATE_CAUSE_NAS_ERROR 9
     146             : #define RADIUS_ACCT_TERMINATE_CAUSE_NAS_REQUEST 10
     147             : #define RADIUS_ACCT_TERMINATE_CAUSE_NAS_REBOOT 11
     148             : #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_UNNEEDED 12
     149             : #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_PREEMPTED 13
     150             : #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_SUSPENDED 14
     151             : #define RADIUS_ACCT_TERMINATE_CAUSE_SERVICE_UNAVAILABLE 15
     152             : #define RADIUS_ACCT_TERMINATE_CAUSE_CALLBACK 16
     153             : #define RADIUS_ACCT_TERMINATE_CAUSE_USER_ERROR 17
     154             : #define RADIUS_ACCT_TERMINATE_CAUSE_HOST_REQUEST 18
     155             : 
     156             : #define RADIUS_TUNNEL_TAGS 32
     157             : 
     158             : /* Tunnel-Type */
     159             : #define RADIUS_TUNNEL_TYPE_PPTP 1
     160             : #define RADIUS_TUNNEL_TYPE_L2TP 3
     161             : #define RADIUS_TUNNEL_TYPE_IPIP 7
     162             : #define RADIUS_TUNNEL_TYPE_GRE 10
     163             : #define RADIUS_TUNNEL_TYPE_VLAN 13
     164             : 
     165             : /* Tunnel-Medium-Type */
     166             : #define RADIUS_TUNNEL_MEDIUM_TYPE_IPV4 1
     167             : #define RADIUS_TUNNEL_MEDIUM_TYPE_IPV6 2
     168             : #define RADIUS_TUNNEL_MEDIUM_TYPE_802 6
     169             : 
     170             : 
     171             : struct radius_attr_vendor {
     172             :         u8 vendor_type;
     173             :         u8 vendor_length;
     174             : } STRUCT_PACKED;
     175             : 
     176             : #define RADIUS_VENDOR_ID_CISCO 9
     177             : #define RADIUS_CISCO_AV_PAIR 1
     178             : 
     179             : /* RFC 2548 - Microsoft Vendor-specific RADIUS Attributes */
     180             : #define RADIUS_VENDOR_ID_MICROSOFT 311
     181             : 
     182             : enum { RADIUS_VENDOR_ATTR_MS_MPPE_SEND_KEY = 16,
     183             :        RADIUS_VENDOR_ATTR_MS_MPPE_RECV_KEY = 17
     184             : };
     185             : 
     186             : 
     187             : /* Hotspot 2.0 - WFA Vendor-specific RADIUS Attributes */
     188             : #define RADIUS_VENDOR_ID_WFA 40808
     189             : 
     190             : enum {
     191             :         RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION = 1,
     192             :         RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION = 2,
     193             :         RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION = 3,
     194             :         RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ = 4,
     195             :         RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL = 5,
     196             : };
     197             : 
     198             : #ifdef _MSC_VER
     199             : #pragma pack(pop)
     200             : #endif /* _MSC_VER */
     201             : 
     202             : struct radius_ms_mppe_keys {
     203             :         u8 *send;
     204             :         size_t send_len;
     205             :         u8 *recv;
     206             :         size_t recv_len;
     207             : };
     208             : 
     209             : 
     210             : struct radius_msg;
     211             : 
     212             : /* Default size to be allocated for new RADIUS messages */
     213             : #define RADIUS_DEFAULT_MSG_SIZE 1024
     214             : 
     215             : /* Default size to be allocated for attribute array */
     216             : #define RADIUS_DEFAULT_ATTR_COUNT 16
     217             : 
     218             : 
     219             : /* MAC address ASCII format for IEEE 802.1X use
     220             :  * (draft-congdon-radius-8021x-20.txt) */
     221             : #define RADIUS_802_1X_ADDR_FORMAT "%02X-%02X-%02X-%02X-%02X-%02X"
     222             : /* MAC address ASCII format for non-802.1X use */
     223             : #define RADIUS_ADDR_FORMAT "%02x%02x%02x%02x%02x%02x"
     224             : 
     225             : struct radius_hdr * radius_msg_get_hdr(struct radius_msg *msg);
     226             : struct wpabuf * radius_msg_get_buf(struct radius_msg *msg);
     227             : struct radius_msg * radius_msg_new(u8 code, u8 identifier);
     228             : void radius_msg_free(struct radius_msg *msg);
     229             : void radius_msg_dump(struct radius_msg *msg);
     230             : int radius_msg_finish(struct radius_msg *msg, const u8 *secret,
     231             :                       size_t secret_len);
     232             : int radius_msg_finish_srv(struct radius_msg *msg, const u8 *secret,
     233             :                           size_t secret_len, const u8 *req_authenticator);
     234             : int radius_msg_finish_das_resp(struct radius_msg *msg, const u8 *secret,
     235             :                                size_t secret_len,
     236             :                                const struct radius_hdr *req_hdr);
     237             : void radius_msg_finish_acct(struct radius_msg *msg, const u8 *secret,
     238             :                             size_t secret_len);
     239             : void radius_msg_finish_acct_resp(struct radius_msg *msg, const u8 *secret,
     240             :                                  size_t secret_len,
     241             :                                  const u8 *req_authenticator);
     242             : int radius_msg_verify_acct_req(struct radius_msg *msg, const u8 *secret,
     243             :                                size_t secret_len);
     244             : int radius_msg_verify_das_req(struct radius_msg *msg, const u8 *secret,
     245             :                               size_t secret_len,
     246             :                               int require_message_authenticator);
     247             : struct radius_attr_hdr * radius_msg_add_attr(struct radius_msg *msg, u8 type,
     248             :                                              const u8 *data, size_t data_len);
     249             : struct radius_msg * radius_msg_parse(const u8 *data, size_t len);
     250             : int radius_msg_add_eap(struct radius_msg *msg, const u8 *data,
     251             :                        size_t data_len);
     252             : struct wpabuf * radius_msg_get_eap(struct radius_msg *msg);
     253             : int radius_msg_verify(struct radius_msg *msg, const u8 *secret,
     254             :                       size_t secret_len, struct radius_msg *sent_msg,
     255             :                       int auth);
     256             : int radius_msg_verify_msg_auth(struct radius_msg *msg, const u8 *secret,
     257             :                                size_t secret_len, const u8 *req_auth);
     258             : int radius_msg_copy_attr(struct radius_msg *dst, struct radius_msg *src,
     259             :                          u8 type);
     260             : int radius_msg_make_authenticator(struct radius_msg *msg);
     261             : struct radius_ms_mppe_keys *
     262             : radius_msg_get_ms_keys(struct radius_msg *msg, struct radius_msg *sent_msg,
     263             :                        const u8 *secret, size_t secret_len);
     264             : struct radius_ms_mppe_keys *
     265             : radius_msg_get_cisco_keys(struct radius_msg *msg, struct radius_msg *sent_msg,
     266             :                           const u8 *secret, size_t secret_len);
     267             : int radius_msg_add_mppe_keys(struct radius_msg *msg,
     268             :                              const u8 *req_authenticator,
     269             :                              const u8 *secret, size_t secret_len,
     270             :                              const u8 *send_key, size_t send_key_len,
     271             :                              const u8 *recv_key, size_t recv_key_len);
     272             : int radius_msg_add_wfa(struct radius_msg *msg, u8 subtype, const u8 *data,
     273             :                        size_t len);
     274             : int radius_user_password_hide(struct radius_msg *msg,
     275             :                               const u8 *data, size_t data_len,
     276             :                               const u8 *secret, size_t secret_len,
     277             :                               u8 *buf, size_t buf_len);
     278             : struct radius_attr_hdr *
     279             : radius_msg_add_attr_user_password(struct radius_msg *msg,
     280             :                                   const u8 *data, size_t data_len,
     281             :                                   const u8 *secret, size_t secret_len);
     282             : int radius_msg_get_attr(struct radius_msg *msg, u8 type, u8 *buf, size_t len);
     283             : int radius_msg_get_vlanid(struct radius_msg *msg, int *untagged, int numtagged,
     284             :                           int *tagged);
     285             : char * radius_msg_get_tunnel_password(struct radius_msg *msg, int *keylen,
     286             :                                       const u8 *secret, size_t secret_len,
     287             :                                       struct radius_msg *sent_msg, size_t n);
     288             : 
     289       58566 : static inline int radius_msg_add_attr_int32(struct radius_msg *msg, u8 type,
     290             :                                             u32 value)
     291             : {
     292       58566 :         u32 val = htonl(value);
     293       58566 :         return radius_msg_add_attr(msg, type, (u8 *) &val, 4) != NULL;
     294             : }
     295             : 
     296       15407 : static inline int radius_msg_get_attr_int32(struct radius_msg *msg, u8 type,
     297             :                                             u32 *value)
     298             : {
     299             :         u32 val;
     300             :         int res;
     301       15407 :         res = radius_msg_get_attr(msg, type, (u8 *) &val, 4);
     302       15407 :         if (res != 4)
     303       15398 :                 return -1;
     304             : 
     305           9 :         *value = ntohl(val);
     306           9 :         return 0;
     307             : }
     308             : int radius_msg_get_attr_ptr(struct radius_msg *msg, u8 type, u8 **buf,
     309             :                             size_t *len, const u8 *start);
     310             : int radius_msg_count_attr(struct radius_msg *msg, u8 type, int min_len);
     311             : 
     312             : 
     313             : struct radius_attr_data {
     314             :         u8 *data;
     315             :         size_t len;
     316             : };
     317             : 
     318             : struct radius_class_data {
     319             :         struct radius_attr_data *attr;
     320             :         size_t count;
     321             : };
     322             : 
     323             : void radius_free_class(struct radius_class_data *c);
     324             : int radius_copy_class(struct radius_class_data *dst,
     325             :                       const struct radius_class_data *src);
     326             : 
     327             : u8 radius_msg_find_unlisted_attr(struct radius_msg *msg, u8 *attrs);
     328             : 
     329             : int radius_gen_session_id(u8 *id, size_t len);
     330             : 
     331             : #endif /* RADIUS_H */

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