4 /* RFC 2865 - RADIUS */
9 u16 length; /* including this header */
11 /* followed by length-20 octets of attributes */
12 } __attribute__ ((packed));
14 enum { RADIUS_CODE_ACCESS_REQUEST = 1,
15 RADIUS_CODE_ACCESS_ACCEPT = 2,
16 RADIUS_CODE_ACCESS_REJECT = 3,
17 RADIUS_CODE_ACCOUNTING_REQUEST = 4,
18 RADIUS_CODE_ACCOUNTING_RESPONSE = 5,
19 RADIUS_CODE_ACCESS_CHALLENGE = 11,
20 RADIUS_CODE_STATUS_SERVER = 12,
21 RADIUS_CODE_STATUS_CLIENT = 13,
22 RADIUS_CODE_RESERVED = 255
25 struct radius_attr_hdr {
27 u8 length; /* including this header */
28 /* followed by length-2 octets of attribute value */
29 } __attribute__ ((packed));
31 #define RADIUS_MAX_ATTR_LEN (255 - sizeof(struct radius_attr_hdr))
33 enum { RADIUS_ATTR_USER_NAME = 1,
34 RADIUS_ATTR_USER_PASSWORD = 2,
35 RADIUS_ATTR_NAS_IP_ADDRESS = 4,
36 RADIUS_ATTR_NAS_PORT = 5,
37 RADIUS_ATTR_FRAMED_MTU = 12,
38 RADIUS_ATTR_STATE = 24,
39 RADIUS_ATTR_CLASS = 25,
40 RADIUS_ATTR_VENDOR_SPECIFIC = 26,
41 RADIUS_ATTR_SESSION_TIMEOUT = 27,
42 RADIUS_ATTR_IDLE_TIMEOUT = 28,
43 RADIUS_ATTR_TERMINATION_ACTION = 29,
44 RADIUS_ATTR_CALLED_STATION_ID = 30,
45 RADIUS_ATTR_CALLING_STATION_ID = 31,
46 RADIUS_ATTR_NAS_IDENTIFIER = 32,
47 RADIUS_ATTR_ACCT_STATUS_TYPE = 40,
48 RADIUS_ATTR_ACCT_DELAY_TIME = 41,
49 RADIUS_ATTR_ACCT_INPUT_OCTETS = 42,
50 RADIUS_ATTR_ACCT_OUTPUT_OCTETS = 43,
51 RADIUS_ATTR_ACCT_SESSION_ID = 44,
52 RADIUS_ATTR_ACCT_AUTHENTIC = 45,
53 RADIUS_ATTR_ACCT_SESSION_TIME = 46,
54 RADIUS_ATTR_ACCT_INPUT_PACKETS = 47,
55 RADIUS_ATTR_ACCT_OUTPUT_PACKETS = 48,
56 RADIUS_ATTR_ACCT_TERMINATE_CAUSE = 49,
57 RADIUS_ATTR_ACCT_MULTI_SESSION_ID = 50,
58 RADIUS_ATTR_ACCT_LINK_COUNT = 51,
59 RADIUS_ATTR_ACCT_INPUT_GIGAWORDS = 52,
60 RADIUS_ATTR_ACCT_OUTPUT_GIGAWORDS = 53,
61 RADIUS_ATTR_EVENT_TIMESTAMP = 55,
62 RADIUS_ATTR_NAS_PORT_TYPE = 61,
63 RADIUS_ATTR_CONNECT_INFO = 77,
64 RADIUS_ATTR_EAP_MESSAGE = 79,
65 RADIUS_ATTR_MESSAGE_AUTHENTICATOR = 80,
66 RADIUS_ATTR_ACCT_INTERIM_INTERVAL = 85
70 /* Termination-Action */
71 #define RADIUS_TERMINATION_ACTION_DEFAULT 0
72 #define RADIUS_TERMINATION_ACTION_RADIUS_REQUEST 1
75 #define RADIUS_NAS_PORT_TYPE_IEEE_802_11 19
77 /* Acct-Status-Type */
78 #define RADIUS_ACCT_STATUS_TYPE_START 1
79 #define RADIUS_ACCT_STATUS_TYPE_STOP 2
80 #define RADIUS_ACCT_STATUS_TYPE_INTERIM_UPDATE 3
81 #define RADIUS_ACCT_STATUS_TYPE_ACCOUNTING_ON 7
82 #define RADIUS_ACCT_STATUS_TYPE_ACCOUNTING_OFF 8
85 #define RADIUS_ACCT_AUTHENTIC_RADIUS 1
86 #define RADIUS_ACCT_AUTHENTIC_LOCAL 2
87 #define RADIUS_ACCT_AUTHENTIC_REMOTE 3
89 /* Acct-Terminate-Cause */
90 #define RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST 1
91 #define RADIUS_ACCT_TERMINATE_CAUSE_LOST_CARRIER 2
92 #define RADIUS_ACCT_TERMINATE_CAUSE_LOST_SERVICE 3
93 #define RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT 4
94 #define RADIUS_ACCT_TERMINATE_CAUSE_SESSION_TIMEOUT 5
95 #define RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_RESET 6
96 #define RADIUS_ACCT_TERMINATE_CAUSE_ADMIN_REBOOT 7
97 #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_ERROR 8
98 #define RADIUS_ACCT_TERMINATE_CAUSE_NAS_ERROR 9
99 #define RADIUS_ACCT_TERMINATE_CAUSE_NAS_REQUEST 10
100 #define RADIUS_ACCT_TERMINATE_CAUSE_NAS_REBOOT 11
101 #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_UNNEEDED 12
102 #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_PREEMPTED 13
103 #define RADIUS_ACCT_TERMINATE_CAUSE_PORT_SUSPENDED 14
104 #define RADIUS_ACCT_TERMINATE_CAUSE_SERVICE_UNAVAILABLE 15
105 #define RADIUS_ACCT_TERMINATE_CAUSE_CALLBACK 16
106 #define RADIUS_ACCT_TERMINATE_CAUSE_USER_ERROR 17
107 #define RADIUS_ACCT_TERMINATE_CAUSE_HOST_REQUEST 18
110 struct radius_attr_vendor {
113 } __attribute__ ((packed));
115 #define RADIUS_VENDOR_ID_CISCO 9
116 #define RADIUS_CISCO_AV_PAIR 1
118 /* RFC 2548 - Microsoft Vendor-specific RADIUS Attributes */
119 #define RADIUS_VENDOR_ID_MICROSOFT 311
121 enum { RADIUS_VENDOR_ATTR_MS_MPPE_SEND_KEY = 16,
122 RADIUS_VENDOR_ATTR_MS_MPPE_RECV_KEY = 17
125 struct radius_ms_mppe_keys {
133 /* RADIUS message structure for new and parsed messages */
136 size_t buf_size; /* total size allocated for buf */
137 size_t buf_used; /* bytes used in buf */
139 struct radius_hdr *hdr;
141 struct radius_attr_hdr **attrs; /* array of pointers to attributes */
142 size_t attr_size; /* total size of the attribute pointer array */
143 size_t attr_used; /* total number of attributes in the array */
147 /* Default size to be allocated for new RADIUS messages */
148 #define RADIUS_DEFAULT_MSG_SIZE 1024
150 /* Default size to be allocated for attribute array */
151 #define RADIUS_DEFAULT_ATTR_COUNT 16
154 /* MAC address ASCII format for IEEE 802.1X use
155 * (draft-congdon-radius-8021x-20.txt) */
156 #define RADIUS_802_1X_ADDR_FORMAT "%02X-%02X-%02X-%02X-%02X-%02X"
157 /* MAC address ASCII format for non-802.1X use */
158 #define RADIUS_ADDR_FORMAT "%02x%02x%02x%02x%02x%02x"
160 struct radius_msg *radius_msg_new(u8 code, u8 identifier);
161 int radius_msg_initialize(struct radius_msg *msg, size_t init_len);
162 void radius_msg_set_hdr(struct radius_msg *msg, u8 code, u8 identifier);
163 void radius_msg_free(struct radius_msg *msg);
164 void radius_msg_dump(struct radius_msg *msg);
165 int radius_msg_finish(struct radius_msg *msg, u8 *secret, size_t secret_len);
166 int radius_msg_finish_srv(struct radius_msg *msg, const u8 *secret,
167 size_t secret_len, const u8 *req_authenticator);
168 void radius_msg_finish_acct(struct radius_msg *msg, u8 *secret,
170 struct radius_attr_hdr *radius_msg_add_attr(struct radius_msg *msg, u8 type,
171 u8 *data, size_t data_len);
172 struct radius_msg *radius_msg_parse(const u8 *data, size_t len);
173 int radius_msg_add_eap(struct radius_msg *msg, u8 *data, size_t data_len);
174 u8 *radius_msg_get_eap(struct radius_msg *msg, size_t *len);
175 int radius_msg_verify(struct radius_msg *msg, u8 *secret, size_t secret_len,
176 struct radius_msg *sent_msg);
177 int radius_msg_verify_msg_auth(struct radius_msg *msg, const u8 *secret,
178 size_t secret_len, const u8 *req_auth);
179 int radius_msg_verify_acct(struct radius_msg *msg, u8 *secret,
180 size_t secret_len, struct radius_msg *sent_msg);
181 int radius_msg_copy_attr(struct radius_msg *dst, struct radius_msg *src,
183 void radius_msg_make_authenticator(struct radius_msg *msg,
184 u8 *data, size_t len);
185 struct radius_ms_mppe_keys *
186 radius_msg_get_ms_keys(struct radius_msg *msg, struct radius_msg *sent_msg,
187 u8 *secret, size_t secret_len);
188 struct radius_ms_mppe_keys *
189 radius_msg_get_cisco_keys(struct radius_msg *msg, struct radius_msg *sent_msg,
190 u8 *secret, size_t secret_len);
191 int radius_msg_add_mppe_keys(struct radius_msg *msg,
192 const u8 *req_authenticator,
193 const u8 *secret, size_t secret_len,
194 const u8 *send_key, size_t send_key_len,
195 const u8 *recv_key, size_t recv_key_len);
196 struct radius_attr_hdr *
197 radius_msg_add_attr_user_password(struct radius_msg *msg,
198 u8 *data, size_t data_len,
199 u8 *secret, size_t secret_len);
200 int radius_msg_get_attr(struct radius_msg *msg, u8 type, u8 *buf, size_t len);
202 static inline int radius_msg_add_attr_int32(struct radius_msg *msg, u8 type,
205 u32 val = htonl(value);
206 return radius_msg_add_attr(msg, type, (u8 *) &val, 4) != NULL;
209 static inline int radius_msg_get_attr_int32(struct radius_msg *msg, u8 type,
214 res = radius_msg_get_attr(msg, type, (u8 *) &val, 4);
221 int radius_msg_get_attr_ptr(struct radius_msg *msg, u8 type, u8 **buf,
224 #endif /* RADIUS_H */