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37 * Author: Julian Elischer <julian@freebsd.org>
40 * $Whistle: ng_pppoe.h,v 1.7 1999/10/16 10:16:43 julian Exp $
43 #ifndef _NETGRAPH_NG_PPPOE_H_
44 #define _NETGRAPH_NG_PPPOE_H_
46 /********************************************************************
47 * Netgraph hook constants etc.
48 ********************************************************************/
49 /* Node type name. This should be unique among all netgraph node types */
50 #define NG_PPPOE_NODE_TYPE "pppoe"
52 #define NGM_PPPOE_COOKIE 939032003
54 /* Number of active sessions we can handle */
55 #define PPPOE_NUM_SESSIONS 16 /* for now */
56 #define PPPOE_SERVICE_NAME_SIZE 64 /* for now */
59 #define NG_PPPOE_HOOK_ETHERNET "ethernet"
60 #define NG_PPPOE_HOOK_PADI "PADI" /* default PADI requests come here */
61 #define NG_PPPOE_HOOK_S_LEADIN "service" /* PADO responses from PADI */
62 #define NG_PPPOE_HOOK_C_LEADIN "client" /* Connect message starts this */
63 #define NG_PPPOE_HOOK_DEBUG "debug"
65 /**********************************************************************
66 * Netgraph commands understood by this node type.
67 * FAIL, SUCCESS, CLOSE and ACNAME are sent by the node rather than received.
68 ********************************************************************/
70 NGM_PPPOE_SET_FLAG = 1,
71 NGM_PPPOE_CONNECT = 2, /* Client, Try find this service */
72 NGM_PPPOE_LISTEN = 3, /* Server, Await a request for this service */
73 NGM_PPPOE_OFFER = 4, /* Server, hook X should respond (*) */
74 NGM_PPPOE_SUCCESS = 5, /* State machine connected */
75 NGM_PPPOE_FAIL = 6, /* State machine could not connect */
76 NGM_PPPOE_CLOSE = 7, /* Session closed down */
77 NGM_PPPOE_SERVICE = 8, /* additional Service to advertise (in PADO) */
78 NGM_PPPOE_ACNAME = 9, /* AC_NAME for informational purposes */
79 NGM_PPPOE_GET_STATUS = 10, /* data in/out */
80 NGM_PPPOE_SESSIONID = 11 /* Session_ID for informational purposes */
83 /***********************
84 * Structures passed in the various netgraph command messages.
85 ***********************/
86 /* This structure is returned by the NGM_PPPOE_GET_STATUS command */
88 u_int packets_in; /* packets in from ethernet */
89 u_int packets_out; /* packets out towards ethernet */
92 /* Keep this in sync with the above structure definition */
93 #define NG_PPPOESTAT_TYPE_INFO { \
94 { "packets_in", &ng_parse_uint_type }, \
95 { "packets_out", &ng_parse_uint_type }, \
100 * When this structure is accepted by the NGM_PPPOE_CONNECT command :
101 * The data field is MANDATORY.
102 * The session sends out a PADI request for the named service.
105 * When this structure is accepted by the NGM_PPPOE_LISTEN command.
106 * If no service is given this is assumed to accept ALL PADI requests.
107 * This may at some time take a regexp expression, but not yet.
108 * Matching PADI requests will be passed up the named hook.
111 * When this structure is accepted by the NGM_PPPOE_OFFER command:
112 * The AC-NAme field is set from that given and a PADI
113 * packet is expected to arrive from the session control daemon, on the
114 * named hook. The session will then issue the appropriate PADO
115 * and begin negotiation.
117 struct ngpppoe_init_data {
118 char hook[NG_HOOKSIZ]; /* hook to monitor on */
119 u_int16_t data_len; /* Length of the service name */
120 char data[0]; /* init data goes here */
123 /* Keep this in sync with the above structure definition */
124 #define NG_PPPOE_INIT_DATA_TYPE_INFO { \
125 { "hook", &ng_parse_hookbuf_type }, \
126 { "data", &ng_parse_sizedstring_type }, \
131 * This structure is used by the asychronous success and failure messages.
132 * (to report which hook has failed or connected). The message is sent
133 * to whoever requested the connection. (close may use this too).
136 char hook[NG_HOOKSIZ]; /* hook associated with event session */
139 /* Keep this in sync with the above structure definition */
140 #define NG_PPPOE_STS_TYPE_INFO { \
141 { "hook", &ng_parse_hookbuf_type }, \
146 /********************************************************************
147 * Constants and definitions specific to pppoe
148 ********************************************************************/
150 #define PPPOE_TIMEOUT_LIMIT 64
151 #define PPPOE_OFFER_TIMEOUT 16
152 #define PPPOE_INITIAL_TIMEOUT 2
154 /* Codes to identify message types */
155 #define PADI_CODE 0x09
156 #define PADO_CODE 0x07
157 #define PADR_CODE 0x19
158 #define PADS_CODE 0x65
159 #define PADT_CODE 0xa7
161 /* Tag identifiers */
162 #if BYTE_ORDER == BIG_ENDIAN
163 #define PTT_EOL (0x0000)
164 #define PTT_SRV_NAME (0x0101)
165 #define PTT_AC_NAME (0x0102)
166 #define PTT_HOST_UNIQ (0x0103)
167 #define PTT_AC_COOKIE (0x0104)
168 #define PTT_VENDOR (0x0105)
169 #define PTT_RELAY_SID (0x0110)
170 #define PTT_SRV_ERR (0x0201)
171 #define PTT_SYS_ERR (0x0202)
172 #define PTT_GEN_ERR (0x0203)
174 #define ETHERTYPE_PPPOE_DISC 0x8863 /* pppoe discovery packets */
175 #define ETHERTYPE_PPPOE_SESS 0x8864 /* pppoe session packets */
176 #define ETHERTYPE_PPPOE_STUPID_DISC 0x3c12 /* pppoe discovery packets 3com? */
177 #define ETHERTYPE_PPPOE_STUPID_SESS 0x3c13 /* pppoe session packets 3com? */
179 #define PTT_EOL (0x0000)
180 #define PTT_SRV_NAME (0x0101)
181 #define PTT_AC_NAME (0x0201)
182 #define PTT_HOST_UNIQ (0x0301)
183 #define PTT_AC_COOKIE (0x0401)
184 #define PTT_VENDOR (0x0501)
185 #define PTT_RELAY_SID (0x1001)
186 #define PTT_SRV_ERR (0x0102)
187 #define PTT_SYS_ERR (0x0202)
188 #define PTT_GEN_ERR (0x0302)
190 #define ETHERTYPE_PPPOE_DISC 0x6388 /* pppoe discovery packets */
191 #define ETHERTYPE_PPPOE_SESS 0x6488 /* pppoe session packets */
192 #define ETHERTYPE_PPPOE_STUPID_DISC 0x123c /* pppoe discovery packets 3com? */
193 #define ETHERTYPE_PPPOE_STUPID_SESS 0x133c /* pppoe session packets 3com? */
208 struct pppoe_tag tag[0];
212 struct pppoe_full_hdr {
213 struct ether_header eh;
218 struct pppoe_full_hdr pkt_header;
219 u_int8_t bytes[2048];
223 struct pppoe_tag hdr;
224 u_int8_t data[PPPOE_SERVICE_NAME_SIZE];
229 * Define the order in which we will place tags in packets
230 * this may be ignored
236 #define TAGO_ACNAME 0
238 #define TAGO_COOKIE 2
243 #define TAGR_COOKIE 2
245 #define TAGS_ACNAME 0
247 #define TAGS_COOKIE 2
251 #endif /* _NETGRAPH_NG_PPPOE_H_ */