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38 * Author: Julian Elischer <julian@freebsd.org>
41 * $Whistle: ng_pppoe.h,v 1.7 1999/10/16 10:16:43 julian Exp $
44 #ifndef _NETGRAPH_NG_PPPOE_H_
45 #define _NETGRAPH_NG_PPPOE_H_
47 /********************************************************************
48 * Netgraph hook constants etc.
49 ********************************************************************/
50 /* Node type name. This should be unique among all netgraph node types */
51 #define NG_PPPOE_NODE_TYPE "pppoe"
53 #define NGM_PPPOE_COOKIE 1089893072
55 /* Number of active sessions we can handle */
56 #define PPPOE_NUM_SESSIONS 16 /* for now */
57 #define PPPOE_SERVICE_NAME_SIZE 64 /* for now */
60 #define NG_PPPOE_HOOK_ETHERNET "ethernet"
61 #define NG_PPPOE_HOOK_PADI "PADI" /* default PADI requests come here */
62 #define NG_PPPOE_HOOK_S_LEADIN "service" /* PADO responses from PADI */
63 #define NG_PPPOE_HOOK_C_LEADIN "client" /* Connect message starts this */
64 #define NG_PPPOE_HOOK_DEBUG "debug"
67 #define NG_PPPOE_STANDARD "standard"
68 #define NG_PPPOE_3COM "3Com"
69 #define NG_PPPOE_NONSTANDARD NG_PPPOE_3COM
70 #define NG_PPPOE_DLINK "D-Link"
72 /**********************************************************************
73 * Netgraph commands understood by this node type.
74 * FAIL, SUCCESS, CLOSE and ACNAME are sent by the node rather than received.
75 ********************************************************************/
77 NGM_PPPOE_SET_FLAG = 1,
78 NGM_PPPOE_CONNECT = 2, /* Client, Try find this service */
79 NGM_PPPOE_LISTEN = 3, /* Server, Await a request for this service */
80 NGM_PPPOE_OFFER = 4, /* Server, hook X should respond (*) */
81 NGM_PPPOE_SUCCESS = 5, /* State machine connected */
82 NGM_PPPOE_FAIL = 6, /* State machine could not connect */
83 NGM_PPPOE_CLOSE = 7, /* Session closed down */
84 NGM_PPPOE_SERVICE = 8, /* additional Service to advertise (in PADO) */
85 NGM_PPPOE_ACNAME = 9, /* AC_NAME for informational purposes */
86 NGM_PPPOE_GET_STATUS = 10, /* data in/out */
87 NGM_PPPOE_SESSIONID = 11, /* Session_ID for informational purposes */
88 NGM_PPPOE_SETMODE = 12, /* set to standard or 3Com mode */
89 NGM_PPPOE_GETMODE = 13, /* see current mode */
92 /***********************
93 * Structures passed in the various netgraph command messages.
94 ***********************/
95 /* This structure is returned by the NGM_PPPOE_GET_STATUS command */
97 u_int packets_in; /* packets in from ethernet */
98 u_int packets_out; /* packets out towards ethernet */
101 /* Keep this in sync with the above structure definition */
102 #define NG_PPPOESTAT_TYPE_INFO { \
103 { "packets_in", &ng_parse_uint_type }, \
104 { "packets_out", &ng_parse_uint_type }, \
109 * When this structure is accepted by the NGM_PPPOE_CONNECT command :
110 * The data field is MANDATORY.
111 * The session sends out a PADI request for the named service.
114 * When this structure is accepted by the NGM_PPPOE_LISTEN command.
115 * If no service is given this is assumed to accept ALL PADI requests.
116 * This may at some time take a regexp expression, but not yet.
117 * Matching PADI requests will be passed up the named hook.
120 * When this structure is accepted by the NGM_PPPOE_OFFER command:
121 * The AC-NAme field is set from that given and a PADI
122 * packet is expected to arrive from the session control daemon, on the
123 * named hook. The session will then issue the appropriate PADO
124 * and begin negotiation.
126 struct ngpppoe_init_data {
127 char hook[NG_HOOKSIZ]; /* hook to monitor on */
128 u_int16_t data_len; /* Length of the service name */
129 char data[]; /* init data goes here */
132 /* Keep this in sync with the above structure definition */
133 #define NG_PPPOE_INIT_DATA_TYPE_INFO { \
134 { "hook", &ng_parse_hookbuf_type }, \
135 { "data", &ng_parse_sizedstring_type }, \
140 * This structure is used by the asychronous success and failure messages.
141 * (to report which hook has failed or connected). The message is sent
142 * to whoever requested the connection. (close may use this too).
145 char hook[NG_HOOKSIZ]; /* hook associated with event session */
148 /* Keep this in sync with the above structure definition */
149 #define NG_PPPOE_STS_TYPE_INFO { \
150 { "hook", &ng_parse_hookbuf_type }, \
155 /********************************************************************
156 * Constants and definitions specific to pppoe
157 ********************************************************************/
159 #define PPPOE_TIMEOUT_LIMIT 64
160 #define PPPOE_OFFER_TIMEOUT 16
161 #define PPPOE_INITIAL_TIMEOUT 2
163 /* Codes to identify message types */
164 #define PADI_CODE 0x09
165 #define PADO_CODE 0x07
166 #define PADR_CODE 0x19
167 #define PADS_CODE 0x65
168 #define PADT_CODE 0xa7
170 /* Tag identifiers */
171 #if BYTE_ORDER == BIG_ENDIAN
172 #define PTT_EOL (0x0000)
173 #define PTT_SRV_NAME (0x0101)
174 #define PTT_AC_NAME (0x0102)
175 #define PTT_HOST_UNIQ (0x0103)
176 #define PTT_AC_COOKIE (0x0104)
177 #define PTT_VENDOR (0x0105)
178 #define PTT_RELAY_SID (0x0110)
179 #define PTT_SRV_ERR (0x0201)
180 #define PTT_SYS_ERR (0x0202)
181 #define PTT_GEN_ERR (0x0203)
183 #define ETHERTYPE_PPPOE_DISC 0x8863 /* pppoe discovery packets */
184 #define ETHERTYPE_PPPOE_SESS 0x8864 /* pppoe session packets */
185 #define ETHERTYPE_PPPOE_3COM_DISC 0x3c12 /* pppoe discovery packets 3com? */
186 #define ETHERTYPE_PPPOE_3COM_SESS 0x3c13 /* pppoe session packets 3com? */
188 #define PTT_EOL (0x0000)
189 #define PTT_SRV_NAME (0x0101)
190 #define PTT_AC_NAME (0x0201)
191 #define PTT_HOST_UNIQ (0x0301)
192 #define PTT_AC_COOKIE (0x0401)
193 #define PTT_VENDOR (0x0501)
194 #define PTT_RELAY_SID (0x1001)
195 #define PTT_SRV_ERR (0x0102)
196 #define PTT_SYS_ERR (0x0202)
197 #define PTT_GEN_ERR (0x0302)
199 #define ETHERTYPE_PPPOE_DISC 0x6388 /* pppoe discovery packets */
200 #define ETHERTYPE_PPPOE_SESS 0x6488 /* pppoe session packets */
201 #define ETHERTYPE_PPPOE_3COM_DISC 0x123c /* pppoe discovery packets 3com? */
202 #define ETHERTYPE_PPPOE_3COM_SESS 0x133c /* pppoe session packets 3com? */
217 struct pppoe_tag tag[];
221 struct pppoe_full_hdr {
222 struct ether_header eh;
227 struct pppoe_full_hdr pkt_header;
228 u_int8_t bytes[2048];
232 struct pppoe_tag hdr;
233 u_int8_t data[PPPOE_SERVICE_NAME_SIZE];
238 * Define the order in which we will place tags in packets
239 * this may be ignored
245 #define TAGO_ACNAME 0
247 #define TAGO_COOKIE 2
252 #define TAGR_COOKIE 2
254 #define TAGS_ACNAME 0
256 #define TAGS_COOKIE 2
260 #endif /* _NETGRAPH_NG_PPPOE_H_ */