1:
2: /*
3: * Copyright (c) 2001-2002 Packet Design, LLC.
4: * All rights reserved.
5: *
6: * Subject to the following obligations and disclaimer of warranty,
7: * use and redistribution of this software, in source or object code
8: * forms, with or without modifications are expressly permitted by
9: * Packet Design; provided, however, that:
10: *
11: * (i) Any and all reproductions of the source or object code
12: * must include the copyright notice above and the following
13: * disclaimer of warranties; and
14: * (ii) No rights are granted, in any manner or form, to use
15: * Packet Design trademarks, including the mark "PACKET DESIGN"
16: * on advertising, endorsements, or otherwise except as such
17: * appears in the above copyright notice or in the software.
18: *
19: * THIS SOFTWARE IS BEING PROVIDED BY PACKET DESIGN "AS IS", AND
20: * TO THE MAXIMUM EXTENT PERMITTED BY LAW, PACKET DESIGN MAKES NO
21: * REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING
22: * THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED
23: * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
24: * OR NON-INFRINGEMENT. PACKET DESIGN DOES NOT WARRANT, GUARANTEE,
25: * OR MAKE ANY REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS
26: * OF THE USE OF THIS SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY,
27: * RELIABILITY OR OTHERWISE. IN NO EVENT SHALL PACKET DESIGN BE
28: * LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING OUT OF ANY USE
29: * OF THIS SOFTWARE, INCLUDING WITHOUT LIMITATION, ANY DIRECT,
30: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL
31: * DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, LOSS OF
32: * USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY THEORY OF
33: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
35: * THE USE OF THIS SOFTWARE, EVEN IF PACKET DESIGN IS ADVISED OF
36: * THE POSSIBILITY OF SUCH DAMAGE.
37: *
38: * Author: Archie Cobbs <archie@freebsd.org>
39: */
40:
41: #ifndef _PPP_L2TP_PDEL_PPP_PPP_L2TP_AVP_H_
42: #define _PPP_L2TP_PDEL_PPP_PPP_L2TP_AVP_H_
43:
44: /***********************************************************************
45: AVP STRUCTURE DEFINITIONS
46: ***********************************************************************/
47:
48: /* Constants defined in RFC 2661 */
49: #define L2TP_PROTO_VERS 1
50: #define L2TP_PROTO_REV 0
51: #define L2TP_DEFAULT_PEER_WIN 4
52: #define L2TP_BEARER_DIGITAL 0x00000001
53: #define L2TP_BEARER_ANALOG 0x00000002
54: #define L2TP_FRAMING_SYNC 0x00000001
55: #define L2TP_FRAMING_ASYNC 0x00000002
56:
57: #define AVP_MANDATORY 0x8000
58: #define AVP_HIDDEN 0x4000
59: #define AVP_RESERVED 0x3c00
60: #define AVP_LENGTH_MASK 0x03ff
61: #define AVP_MAX_LENGTH 1023
62: #define AVP_MAX_VLEN (AVP_MAX_LENGTH - 6)
63:
64: struct ppp_l2tp_avp_info;
65: struct ppp_l2tp_avp;
66:
67: /* AVP decoder function type */
68: typedef void ppp_l2tp_avp_decode_t(const struct ppp_l2tp_avp_info *info,
69: struct ppp_l2tp_avp *avp, char *buf, size_t bmax);
70:
71: /* Structure describing one AVP type */
72: struct ppp_l2tp_avp_info {
73: const char *name; /* textual name */
74: ppp_l2tp_avp_decode_t *decode; /* decode contents */
75: u_int16_t vendor; /* vendor id */
76: u_int16_t type; /* attribute type */
77: u_char hidden_ok; /* avp allowed to be hidden */
78: u_char mandatory; /* set mandatory bit (xmit) */
79: u_int16_t min_length; /* minimum length of value */
80: u_int16_t max_length; /* maximum length of value */
81: };
82:
83: /* Structure describing one AVP */
84: struct ppp_l2tp_avp {
85: u_char mandatory; /* mandatory bit */
86: u_int16_t vendor; /* vendor id */
87: u_int16_t type; /* attribute type */
88: u_int16_t vlen; /* length of attribute value */
89: void *value; /* attribute value */
90: };
91:
92: /* Structure describing a list of AVP's */
93: struct ppp_l2tp_avp_list {
94: u_int length; /* length of list */
95: struct ppp_l2tp_avp *avps; /* array of avps in list */
96: };
97:
98: /* Individual AVP structures */
99: struct messagetype_avp {
100: u_int16_t mesgtype;
101: };
102:
103: struct codesresulterror_avp {
104: u_int16_t result;
105: u_int16_t error;
106: char errmsg[0];
107: };
108:
109: struct protoversion_avp {
110: u_int8_t version;
111: u_int8_t revision;
112: };
113:
114: struct framecap_avp {
115: u_char async;
116: u_char sync;
117: };
118:
119: struct bearercap_avp {
120: u_char analog;
121: u_char digital;
122: };
123:
124: struct tiebreaker_avp {
125: u_char value[8];
126: };
127:
128: struct firmware_avp {
129: u_int16_t revision;
130: };
131:
132: struct hostname_avp {
133: char hostname[0];
134: };
135:
136: struct vendorname_avp {
137: char vendorname[0];
138: };
139:
140: struct tunnelid_avp {
141: u_int16_t id;
142: };
143:
144: struct sessionid_avp {
145: u_int16_t id;
146: };
147:
148: struct windowsize_avp {
149: u_int16_t size;
150: };
151:
152: struct challenge_avp {
153: u_int length;
154: u_char value[0];
155: };
156:
157: struct challengeresp_avp {
158: u_char value[16];
159: };
160:
161: struct causecode_avp {
162: u_int16_t causecode;
163: u_int8_t causemsg;
164: char message[0];
165: };
166:
167: struct serialnum_avp {
168: u_int32_t serialnum;
169: };
170:
171: struct minbps_avp {
172: u_int32_t minbps;
173: };
174:
175: struct maxbps_avp {
176: u_int32_t maxbps;
177: };
178:
179: struct bearer_avp {
180: u_char analog;
181: u_char digital;
182: };
183:
184: struct framing_avp {
185: u_char async;
186: u_char sync;
187: };
188:
189: struct callednum_avp {
190: char number[0];
191: };
192:
193: struct callingnum_avp {
194: char number[0];
195: };
196:
197: struct subaddress_avp {
198: char number[0];
199: };
200:
201: struct txconnect_avp {
202: u_int32_t bps;
203: };
204:
205: struct rxconnect_avp {
206: u_int32_t bps;
207: };
208:
209: struct channelid_avp {
210: u_int32_t channel;
211: };
212:
213: struct groupid_avp {
214: u_int length;
215: u_char data[0];
216: };
217:
218: struct recvlcp_avp {
219: u_int length;
220: u_char data[0];
221: };
222:
223: struct lastsentlcp_avp {
224: u_int length;
225: u_char data[0];
226: };
227:
228: struct lastrecvlcp_avp {
229: u_int length;
230: u_char data[0];
231: };
232:
233: struct proxyauth_avp {
234: u_int16_t type;
235: };
236:
237: struct proxyname_avp {
238: u_int length;
239: char data[0];
240: };
241:
242: struct proxychallenge_avp {
243: u_int length;
244: u_char data[0];
245: };
246:
247: struct proxyid_avp {
248: u_int16_t id;
249: };
250:
251: struct proxyresp_avp {
252: u_int length;
253: u_char data[0];
254: };
255:
256: struct callerror_avp {
257: u_int32_t crc;
258: u_int32_t frame;
259: u_int32_t overrun;
260: u_int32_t buffer;
261: u_int32_t timeout;
262: u_int32_t alignment;
263: };
264:
265: struct accm_avp {
266: u_int32_t xmit;
267: u_int32_t recv;
268: };
269:
270: struct seqrequired_avp {
271: };
272:
273: /*
274: * This structure describes a suite of AVPs in host-friendly format.
275: * Typically only a sub-set of the AVPs listed will be used.
276: */
277: struct ppp_l2tp_avp_ptrs {
278: struct messagetype_avp *message;
279: struct codesresulterror_avp *errresultcode;
280: struct protoversion_avp *protocol;
281: struct framecap_avp *framingcap;
282: struct bearercap_avp *bearercap;
283: struct tiebreaker_avp *tiebreaker;
284: struct firmware_avp *firmware;
285: struct hostname_avp *hostname;
286: struct vendorname_avp *vendor;
287: struct tunnelid_avp *tunnelid;
288: struct sessionid_avp *sessionid;
289: struct windowsize_avp *winsize;
290: struct challenge_avp *challenge;
291: struct challengeresp_avp *challengresp;
292: struct causecode_avp *causecode;
293: struct serialnum_avp *serialnum;
294: struct minbps_avp *minbps;
295: struct maxbps_avp *maxbps;
296: struct bearer_avp *bearer;
297: struct framing_avp *framing;
298: struct callednum_avp *callednum;
299: struct callingnum_avp *callingnum;
300: struct subaddress_avp *subaddress;
301: struct txconnect_avp *txconnect;
302: struct rxconnect_avp *rxconnect;
303: struct channelid_avp *channelid;
304: struct groupid_avp *groupid;
305: struct recvlcp_avp *recvlcp;
306: struct lastsentlcp_avp *lastsendlcp;
307: struct lastrecvlcp_avp *lastrecvlcp;
308: struct proxyauth_avp *proxyauth;
309: struct proxyname_avp *proxyname;
310: struct proxychallenge_avp *proxychallenge;
311: struct proxyid_avp *proxyid;
312: struct proxyresp_avp *proxyres;
313: struct callerror_avp *callerror;
314: struct accm_avp *accm;
315: struct seqrequired_avp *seqrequired;
316: };
317:
318: /* L2TP result codes for StopCCN messages */
319: #define L2TP_RESULT_CLEARED 1 /* general reqst. to clear connection */
320: #define L2TP_RESULT_ERROR 2 /* general error: see error code */
321: #define L2TP_RESULT_DUP_CTRL 3 /* dupliate control channel */
322: #define L2TP_RESULT_NOT_AUTH 4 /* control channel not authorized */
323: #define L2TP_RESULT_PROTO_VERS 5 /* unsupported protocol: max=err code */
324: #define L2TP_RESULT_SHUTDOWN 6 /* being shut down */
325: #define L2TP_RESULT_FSM 7 /* fsm error */
326:
327: /* L2TP result codes for CDN messages */
328: #define L2TP_RESULT_DRP_CARRIER 1 /* lost carrier */
329: #define L2TP_RESULT_ERROR 2 /* general error: see error code */
330: #define L2TP_RESULT_ADMIN 3 /* administrative disconnect */
331: #define L2TP_RESULT_AVAIL_TEMP 4 /* temp. lack of available resources */
332: #define L2TP_RESULT_AVAIL_PERM 5 /* perm. lack of available resources */
333: #define L2TP_RESULT_DEST 6 /* invalid destination */
334: #define L2TP_RESULT_NO_CARRIER 7 /* no carrier detected */
335: #define L2TP_RESULT_BUSY 8 /* busy signal */
336: #define L2TP_RESULT_NO_DIALTONE 9 /* no dial tone */
337: #define L2TP_RESULT_TIMEOUT 10 /* timeout during establishment */
338: #define L2TP_RESULT_NO_FRAMING 11 /* no appropriate framing detected */
339:
340: /* L2TP error codes */
341: #define L2TP_ERROR_NO_CTRL 1 /* no control connection exists */
342: #define L2TP_ERROR_LENGTH 2 /* length is wrong */
343: #define L2TP_ERROR_BAD_VALUE 3 /* invalid or field non-zero resv. */
344: #define L2TP_ERROR_RESOURCES 4 /* insufficient resources */
345: #define L2TP_ERROR_INVALID_ID 5 /* invalid session id */
346: #define L2TP_ERROR_GENERIC 6 /* generic vendor-specific error */
347: #define L2TP_ERROR_TRY_ANOTHER 7 /* try another lns */
348: #define L2TP_ERROR_MANDATORY 8 /* rec'd unknown mandatory avp */
349:
350: /***********************************************************************
351: AVP TYPES
352: ***********************************************************************/
353:
354: enum ppp_l2tp_avp_type {
355: AVP_MESSAGE_TYPE =0,
356: AVP_RESULT_CODE =1,
357: AVP_PROTOCOL_VERSION =2,
358: AVP_FRAMING_CAPABILITIES =3,
359: AVP_BEARER_CAPABILITIES =4,
360: AVP_TIE_BREAKER =5,
361: AVP_FIRMWARE_REVISION =6,
362: AVP_HOST_NAME =7,
363: AVP_VENDOR_NAME =8,
364: AVP_ASSIGNED_TUNNEL_ID =9,
365: AVP_RECEIVE_WINDOW_SIZE =10,
366: AVP_CHALLENGE =11,
367: AVP_CAUSE_CODE =12,
368: AVP_CHALLENGE_RESPONSE =13,
369: AVP_ASSIGNED_SESSION_ID =14,
370: AVP_CALL_SERIAL_NUMBER =15,
371: AVP_MINIMUM_BPS =16,
372: AVP_MAXIMUM_BPS =17,
373: AVP_BEARER_TYPE =18,
374: AVP_FRAMING_TYPE =19,
375: AVP_CALLED_NUMBER =21,
376: AVP_CALLING_NUMBER =22,
377: AVP_SUB_ADDRESS =23,
378: AVP_TX_CONNECT_SPEED =24,
379: AVP_PHYSICAL_CHANNEL_ID =25,
380: AVP_INITIAL_RECV_CONFREQ =26,
381: AVP_LAST_SENT_CONFREQ =27,
382: AVP_LAST_RECV_CONFREQ =28,
383: AVP_PROXY_AUTHEN_TYPE =29,
384: AVP_PROXY_AUTHEN_NAME =30,
385: AVP_PROXY_AUTHEN_CHALLENGE =31,
386: AVP_PROXY_AUTHEN_ID =32,
387: AVP_PROXY_AUTHEN_RESPONSE =33,
388: AVP_CALL_ERRORS =34,
389: AVP_ACCM =35,
390: AVP_RANDOM_VECTOR =36,
391: AVP_PRIVATE_GROUP_ID =37,
392: AVP_RX_CONNECT_SPEED =38,
393: AVP_SEQUENCING_REQUIRED =39,
394: AVP_MAX =40
395: };
396:
397: /***********************************************************************
398: AVP FUNCTIONS
399: ***********************************************************************/
400:
401: __BEGIN_DECLS
402:
403: /*
404: * Create an AVP pointers structure from an AVP list.
405: *
406: * AVP's not listed in the pointers structure are simply omitted.
407: *
408: * Returns:
409: * NULL If failure (errno is set)
410: * ptrs New pointers structure
411: */
412: extern struct ppp_l2tp_avp_ptrs *ppp_l2tp_avp_list2ptrs(
413: const struct ppp_l2tp_avp_list *list);
414:
415: /*
416: * Destroy an AVP pointers structure.
417: *
418: * Arguments:
419: * ptrsp Pointer to 'AVP pointers' pointer; it gets set to NULL
420: */
421: extern void ppp_l2tp_avp_ptrs_destroy(struct ppp_l2tp_avp_ptrs **ptrsp);
422:
423: /*
424: * Create a new AVP structure.
425: *
426: * Arguments:
427: * mandatory Set mandatory bit
428: * vendor Attribute vendor
429: * type Attribute type
430: * value Value contents
431: * vlen Length of value contents
432: *
433: * Returns:
434: * NULL If failure (errno is set)
435: * avp New AVP structure
436: */
437: extern struct ppp_l2tp_avp *ppp_l2tp_avp_create(int mandatory,
438: u_int16_t vendor, u_int16_t type, const void *value,
439: size_t vlen);
440:
441: /*
442: * Copy an AVP struture.
443: *
444: * Returns:
445: * NULL If failure (errno is set)
446: * ptr New AVP structure
447: */
448: extern struct ppp_l2tp_avp *ppp_l2tp_avp_copy(const struct ppp_l2tp_avp *avp);
449:
450: /*
451: * Destroy an AVP structure.
452: *
453: * Arguments:
454: * avpp Pointer to AVP pointer; it gets set to NULL
455: */
456: extern void ppp_l2tp_avp_destroy(struct ppp_l2tp_avp **avpp);
457:
458: /*
459: * Create a new AVP list.
460: *
461: * Returns:
462: * NULL If failure (errno is set)
463: * ptr New AVP list structure
464: */
465: extern struct ppp_l2tp_avp_list *ppp_l2tp_avp_list_create(void);
466:
467: /*
468: * Insert an AVP into a list.
469: *
470: * Arguments:
471: * list List to insert AVP into
472: * avpp Pointer to AVP pointer; it gets set to NULL if successful
473: * index Where in list to insert; special case -1 means 'at the end'
474: *
475: * Returns:
476: * 0 Successful
477: * -1 If failure (errno is set)
478: */
479: extern int ppp_l2tp_avp_list_insert(struct ppp_l2tp_avp_list *list,
480: struct ppp_l2tp_avp **avpp, unsigned index);
481:
482: /*
483: * Create a new AVP and add it to the end of the given list. That is, this
484: * ia a combination of ppp_l2tp_avp_create() and ppp_l2tp_avp_list_insert()
485: * added for convenience in a common operation.
486: *
487: * Arguments:
488: * list List to append AVP to
489: * mandatory Set mandatory bit
490: * vendor Attribute vendor
491: * type Attribute type
492: * value Value contents
493: * vlen Length of value contents
494: *
495: * Returns:
496: * 0 Successful
497: * -1 If failure (errno is set)
498: */
499: extern int ppp_l2tp_avp_list_append(struct ppp_l2tp_avp_list *list,
500: int mandatory, u_int16_t vendor, u_int16_t type,
501: const void *value, size_t vlen);
502:
503: /*
504: * Extract an AVP from a list.
505: *
506: * Arguments:
507: * list List to extract AVP from
508: * index Which item to extract
509: *
510: * Returns:
511: * avp If 'index' is valid, extracted item
512: * NULL If 'index' is out of range
513: */
514: extern struct ppp_l2tp_avp *ppp_l2tp_avp_list_extract(
515: struct ppp_l2tp_avp_list *list, u_int index);
516:
517: /*
518: * Remove and destroy an AVP from a list.
519: *
520: * Arguments:
521: * list List to remove AVP from
522: * index Which item to remove
523: *
524: * Returns:
525: * 0 If 'index' is valid and AVP was removed
526: * -1 If 'index' is out of range
527: */
528: extern int ppp_l2tp_avp_list_remove(
529: struct ppp_l2tp_avp_list *list, u_int index);
530:
531: /*
532: * Find an AVP in a list.
533: *
534: * Arguments:
535: * list List of AVP's
536: * vendor AVP vendor
537: * type AVP attribute type
538: *
539: * Returns:
540: * index If found, index of AVP in list
541: * -1 If not found.
542: */
543: extern int ppp_l2tp_avp_list_find(const struct ppp_l2tp_avp_list *list,
544: u_int16_t vendor, u_int16_t type);
545:
546: /*
547: * Copy an AVP list.
548: *
549: * Returns:
550: * NULL If failure (errno is set)
551: * ptr New AVP list structure
552: */
553: extern struct ppp_l2tp_avp_list *ppp_l2tp_avp_list_copy(
554: const struct ppp_l2tp_avp_list *list);
555:
556: /*
557: * Destroy an AVP list.
558: *
559: * Arguments:
560: * listp Pointer to AVP list pointer; it gets set to NULL
561: */
562: extern void ppp_l2tp_avp_list_destroy(struct ppp_l2tp_avp_list **listp);
563:
564: /*
565: * Encode a list of AVP's into a single buffer, preserving the order
566: * of the AVP's. If a shared secret is supplied, and any of the AVP's
567: * are hidden, then any required random vector AVP's are created and
568: * inserted automatically.
569: *
570: * Arguments:
571: * info AVP info list, terminated with NULL name
572: * list List of AVP structures to encode
573: * secret Shared secret for hiding AVP's, or NULL for none.
574: * slen Length of shared secret (if secret != NULL)
575: * buf Buffer for the data, or NULL to only compute length.
576: *
577: * Returns:
578: * -1 If failure (errno is set)
579: * length If successful, length of encoded data (in bytes)
580: *
581: * Possibilities for errno:
582: * EILSEQ Invalid data format
583: */
584: extern int ppp_l2tp_avp_pack(const struct ppp_l2tp_avp_info *info,
585: const struct ppp_l2tp_avp_list *list,
586: const u_char *secret, size_t slen, u_char *buf);
587:
588: /*
589: * Decode a packet into an array of unpacked AVP structures, preserving
590: * the order of the AVP's. Random vector AVP's are automatically removed.
591: *
592: * Arguments:
593: * info AVP info list, terminated with NULL name
594: * data Original packed AVP data packet
595: * dlen Length of the data pointed to by 'data'
596: * secret Shared secret for unhiding AVP's, or NULL for none.
597: * slen Length of shared secret (if secret != NULL)
598: *
599: * Returns:
600: * NULL If failure (errno is set)
601: * length If successful, the unpacked list
602: *
603: * Possibilities for errno:
604: * EILSEQ Invalid data format
605: * EAUTH Hidden AVP found but no shared secret was provided
606: * ENOSYS Mandatory but unrecognized AVP seen (i.e., AVP not in list)
607: */
608: extern struct ppp_l2tp_avp_list *ppp_l2tp_avp_unpack(
609: const struct ppp_l2tp_avp_info *info,
610: u_char *data, size_t dlen,
611: const u_char *secret, size_t slen);
612:
613: /*
614: * AVP decoders
615: */
616: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_MESSAGE_TYPE;
617: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_RESULT_CODE;
618: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PROTOCOL_VERSION;
619: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_FRAMING_CAPABILITIES;
620: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_BEARER_CAPABILITIES;
621: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_TIE_BREAKER;
622: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_FIRMWARE_REVISION;
623: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_HOST_NAME;
624: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_VENDOR_NAME;
625: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_ASSIGNED_TUNNEL_ID;
626: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_RECEIVE_WINDOW_SIZE;
627: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_CHALLENGE;
628: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_CAUSE_CODE;
629: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_CHALLENGE_RESPONSE;
630: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_ASSIGNED_SESSION_ID;
631: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_CALL_SERIAL_NUMBER;
632: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_MINIMUM_BPS;
633: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_MAXIMUM_BPS;
634: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_BEARER_TYPE;
635: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_FRAMING_TYPE;
636: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_CALLED_NUMBER;
637: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_CALLING_NUMBER;
638: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_SUB_ADDRESS;
639: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_TX_CONNECT_SPEED;
640: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PHYSICAL_CHANNEL_ID;
641: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_INITIAL_RECV_CONFREQ;
642: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_LAST_SENT_CONFREQ;
643: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_LAST_RECV_CONFREQ;
644: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PROXY_AUTHEN_TYPE;
645: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PROXY_AUTHEN_NAME;
646: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PROXY_AUTHEN_CHALLENGE;
647: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PROXY_AUTHEN_ID;
648: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PROXY_AUTHEN_RESPONSE;
649: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_CALL_ERRORS;
650: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_ACCM;
651: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_RANDOM_VECTOR;
652: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_PRIVATE_GROUP_ID;
653: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_RX_CONNECT_SPEED;
654: extern ppp_l2tp_avp_decode_t ppp_l2tp_avp_decode_SEQUENCING_REQUIRED;
655:
656: __END_DECLS
657:
658: #endif /* _PPP_L2TP_PDEL_PPP_PPP_L2TP_AVP_H_ */
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