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1 | /*- |
2 | * Copyright (c) 1991 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * %sccs.include.redist.c% | |
6 | * | |
52ac7ba2 | 7 | * @(#)clnp.h 7.9 (Berkeley) %G% |
7bcd1bb8 | 8 | */ |
4f565be6 | 9 | |
d4b75c41 KS |
10 | /*********************************************************** |
11 | Copyright IBM Corporation 1987 | |
12 | ||
13 | All Rights Reserved | |
14 | ||
15 | Permission to use, copy, modify, and distribute this software and its | |
16 | documentation for any purpose and without fee is hereby granted, | |
17 | provided that the above copyright notice appear in all copies and that | |
18 | both that copyright notice and this permission notice appear in | |
19 | supporting documentation, and that the name of IBM not be | |
20 | used in advertising or publicity pertaining to distribution of the | |
21 | software without specific, written prior permission. | |
22 | ||
23 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
24 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
25 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
26 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
27 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
28 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
29 | SOFTWARE. | |
30 | ||
31 | ******************************************************************/ | |
32 | ||
33 | /* | |
34 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison | |
35 | */ | |
52ac7ba2 KS |
36 | /* $Header: /big/BSD4.4/isis-usr/src/sys/netiso/RCS/clnp.h,v 1.1 1992/02/07 18:14:59 hagens Exp hagens $ */ |
37 | /* $Source: /big/BSD4.4/isis-usr/src/sys/netiso/RCS/clnp.h,v $ */ | |
d4b75c41 KS |
38 | |
39 | #ifndef BYTE_ORDER | |
40 | /* | |
41 | * Definitions for byte order, | |
42 | * according to byte significance from low address to high. | |
43 | */ | |
44 | #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */ | |
45 | #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ | |
46 | #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */ | |
47 | ||
48 | #ifdef vax | |
49 | #define BYTE_ORDER LITTLE_ENDIAN | |
50 | #else | |
51 | #define BYTE_ORDER BIG_ENDIAN /* mc68000, tahoe, most others */ | |
52 | #endif | |
53 | #endif BYTE_ORDER | |
54 | ||
69ee739d KS |
55 | /* should be config option but cpp breaks with too many #defines */ |
56 | #define DECBIT | |
57 | ||
d4b75c41 KS |
58 | /* |
59 | * Return true if the mbuf is a cluster mbuf | |
60 | */ | |
e2069931 | 61 | #define IS_CLUSTER(m) ((m)->m_flags & M_EXT) |
d4b75c41 KS |
62 | |
63 | /* | |
64 | * Move the halfword into the two characters | |
65 | */ | |
66 | #define HTOC(msb, lsb, hword)\ | |
67 | (msb) = (u_char)((hword) >> 8);\ | |
68 | (lsb) = (u_char)((hword) & 0xff) | |
69 | /* | |
70 | * Move the two charcters into the halfword | |
71 | */ | |
72 | #define CTOH(msb, lsb, hword)\ | |
73 | (hword) = ((msb) << 8) | (lsb) | |
74 | ||
75 | /* | |
76 | * Return true if the checksum has been set - ie. the checksum is | |
77 | * not zero | |
78 | */ | |
79 | #define CKSUM_REQUIRED(clnp)\ | |
80 | (((clnp)->cnf_cksum_msb != 0) || ((clnp)->cnf_cksum_lsb != 0)) | |
81 | ||
82 | /* | |
83 | * Fixed part of clnp header | |
84 | */ | |
85 | struct clnp_fixed { | |
86 | u_char cnf_proto_id; /* network layer protocol identifier */ | |
87 | u_char cnf_hdr_len; /* length indicator (octets) */ | |
88 | u_char cnf_vers; /* version/protocol identifier extension */ | |
89 | u_char cnf_ttl; /* lifetime (500 milliseconds) */ | |
a50e2bc0 KS |
90 | u_char cnf_type; /* type code */ |
91 | /* Includes err_ok, more_segs, and seg_ok */ | |
d4b75c41 KS |
92 | u_char cnf_seglen_msb; /* pdu segment length (octets) high byte */ |
93 | u_char cnf_seglen_lsb; /* pdu segment length (octets) low byte */ | |
94 | u_char cnf_cksum_msb; /* checksum high byte */ | |
95 | u_char cnf_cksum_lsb; /* checksum low byte */ | |
96 | }; | |
a50e2bc0 KS |
97 | #define CNF_TYPE 0x1f |
98 | #define CNF_ERR_OK 0x20 | |
99 | #define CNF_MORE_SEGS 0x40 | |
100 | #define CNF_SEG_OK 0x80 | |
101 | ||
d4b75c41 KS |
102 | #define CLNP_CKSUM_OFF 0x07 /* offset of checksum */ |
103 | ||
104 | #define clnl_fixed clnp_fixed | |
105 | ||
106 | /* | |
107 | * Segmentation part of clnp header | |
108 | */ | |
109 | struct clnp_segment { | |
110 | u_short cng_id; /* data unit identifier */ | |
111 | u_short cng_off; /* segment offset */ | |
112 | u_short cng_tot_len; /* total length */ | |
113 | }; | |
114 | ||
115 | /* | |
116 | * Clnp fragment reassembly structures: | |
117 | * | |
118 | * All packets undergoing reassembly are linked together in | |
119 | * clnp_fragl structures. Each clnp_fragl structure contains a | |
120 | * pointer to the original clnp packet header, as well as a | |
121 | * list of packet fragments. Each packet fragment | |
122 | * is headed by a clnp_frag structure. This structure contains the | |
123 | * offset of the first and last byte of the fragment, as well as | |
124 | * a pointer to the data (an mbuf chain) of the fragment. | |
125 | */ | |
126 | ||
127 | /* | |
128 | * NOTE: | |
129 | * The clnp_frag structure is stored in an mbuf immedately preceeding | |
130 | * the fragment data. Since there are words in this struct, | |
131 | * it must be word aligned. | |
132 | * | |
133 | * NOTE: | |
134 | * All the fragment code assumes that the entire clnp header is | |
135 | * contained in the first mbuf. | |
136 | */ | |
137 | struct clnp_frag { | |
138 | u_int cfr_first; /* offset of first byte of this frag */ | |
139 | u_int cfr_last; /* offset of last byte of this frag */ | |
140 | u_int cfr_bytes; /* bytes to shave to get to data */ | |
141 | struct mbuf *cfr_data; /* ptr to data for this frag */ | |
142 | struct clnp_frag *cfr_next; /* next fragment in list */ | |
143 | }; | |
144 | ||
145 | struct clnp_fragl { | |
146 | struct iso_addr cfl_src; /* source of the pkt */ | |
147 | struct iso_addr cfl_dst; /* destination of the pkt */ | |
148 | u_short cfl_id; /* id of the pkt */ | |
149 | u_char cfl_ttl; /* current ttl of pkt */ | |
150 | u_short cfl_last; /* offset of last byte of packet */ | |
151 | struct mbuf *cfl_orighdr; /* ptr to original header */ | |
152 | struct clnp_frag *cfl_frags; /* linked list of fragments for pkt */ | |
153 | struct clnp_fragl *cfl_next; /* next pkt being reassembled */ | |
154 | }; | |
155 | ||
156 | /* | |
157 | * The following structure is used to index into an options section | |
158 | * of a clnp datagram. These values can be used without worry that | |
159 | * offset or length fields are invalid or too big, etc. That is, | |
160 | * the consistancy of the options will be guaranteed before this | |
161 | * structure is filled in. Any pointer (field ending in p) is | |
162 | * actually the offset from the beginning of the mbuf the option | |
163 | * is contained in. A value of NULL for any pointer | |
164 | * means that the option is not present. The length any option | |
165 | * does not include the option code or option length fields. | |
166 | */ | |
167 | struct clnp_optidx { | |
168 | u_short cni_securep; /* ptr to beginning of security option */ | |
169 | char cni_secure_len; /* length of entire security option */ | |
170 | ||
171 | u_short cni_srcrt_s; /* offset of start of src rt option */ | |
172 | u_short cni_srcrt_len; /* length of entire src rt option */ | |
173 | ||
174 | u_short cni_recrtp; /* ptr to beginning of recrt option */ | |
175 | char cni_recrt_len; /* length of entire recrt option */ | |
176 | ||
177 | char cni_priorp; /* ptr to priority option */ | |
178 | ||
179 | u_short cni_qos_formatp; /* ptr to format of qos option */ | |
180 | char cni_qos_len; /* length of entire qos option */ | |
181 | ||
182 | u_char cni_er_reason; /* reason from ER pdu option */ | |
a50e2bc0 KS |
183 | |
184 | /* ESIS options */ | |
185 | ||
186 | u_short cni_esct; /* value from ISH ESCT option */ | |
187 | ||
188 | u_short cni_netmaskp; /* ptr to beginning of netmask option */ | |
189 | char cni_netmask_len; /* length of entire netmask option */ | |
190 | ||
191 | u_short cni_snpamaskp; /* ptr to beginning of snpamask option */ | |
192 | char cni_snpamask_len; /* length of entire snpamask option */ | |
193 | ||
d4b75c41 KS |
194 | }; |
195 | ||
196 | #define ER_INVALREAS 0xff /* code for invalid ER pdu discard reason */ | |
197 | ||
69ee739d KS |
198 | /* given an mbuf and addr of option, return offset from data of mbuf */ |
199 | #define CLNP_OPTTOOFF(m, opt)\ | |
a50e2bc0 | 200 | ((u_short) (opt - mtod(m, caddr_t))) |
69ee739d KS |
201 | |
202 | /* given an mbuf and offset of option, return address of option */ | |
203 | #define CLNP_OFFTOOPT(m, off)\ | |
204 | ((caddr_t) (mtod(m, caddr_t) + off)) | |
205 | ||
d4b75c41 KS |
206 | /* return true iff src route is valid */ |
207 | #define CLNPSRCRT_VALID(oidx)\ | |
208 | ((oidx) && (oidx->cni_srcrt_s)) | |
209 | ||
210 | /* return the offset field of the src rt */ | |
211 | #define CLNPSRCRT_OFF(oidx, options)\ | |
69ee739d | 212 | (*((u_char *)(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s) + 1))) |
d4b75c41 KS |
213 | |
214 | /* return the type field of the src rt */ | |
215 | #define CLNPSRCRT_TYPE(oidx, options)\ | |
69ee739d | 216 | ((u_char)(*(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s)))) |
d4b75c41 KS |
217 | |
218 | /* return the length of the current address */ | |
219 | #define CLNPSRCRT_CLEN(oidx, options)\ | |
69ee739d | 220 | ((u_char)(*(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s) + CLNPSRCRT_OFF(oidx, options) - 1))) |
d4b75c41 KS |
221 | |
222 | /* return the address of the current address */ | |
223 | #define CLNPSRCRT_CADDR(oidx, options)\ | |
69ee739d | 224 | ((caddr_t)(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s) + CLNPSRCRT_OFF(oidx, options))) |
d4b75c41 KS |
225 | |
226 | /* | |
227 | * return true if the src route has run out of routes | |
228 | * this is true if the offset of next route is greater than the end of the rt | |
229 | */ | |
230 | #define CLNPSRCRT_TERM(oidx, options)\ | |
231 | (CLNPSRCRT_OFF(oidx, options) > oidx->cni_srcrt_len) | |
232 | ||
233 | /* | |
234 | * Options a user can set/get | |
235 | */ | |
236 | #define CLNPOPT_FLAGS 0x01 /* flags: seg permitted, no er xmit, etc */ | |
237 | #define CLNPOPT_OPTS 0x02 /* datagram options */ | |
238 | ||
239 | /* | |
240 | * Values for particular datagram options | |
241 | */ | |
242 | #define CLNPOVAL_PAD 0xcc /* padding */ | |
243 | #define CLNPOVAL_SECURE 0xc5 /* security */ | |
244 | #define CLNPOVAL_SRCRT 0xc8 /* source routing */ | |
245 | #define CLNPOVAL_RECRT 0xcb /* record route */ | |
246 | #define CLNPOVAL_QOS 0xc3 /* quality of service */ | |
247 | #define CLNPOVAL_PRIOR 0xcd /* priority */ | |
248 | #define CLNPOVAL_ERREAS 0xc1 /* ER PDU ONLY: reason for discard */ | |
249 | ||
250 | #define CLNPOVAL_SRCSPEC 0x40 /* source address specific */ | |
251 | #define CLNPOVAL_DSTSPEC 0x80 /* destination address specific */ | |
252 | #define CLNPOVAL_GLOBAL 0xc0 /* globally unique */ | |
253 | ||
69ee739d KS |
254 | /* Globally Unique QOS */ |
255 | #define CLNPOVAL_SEQUENCING 0x10 /* sequencing preferred */ | |
256 | #define CLNPOVAL_CONGESTED 0x08 /* congestion experienced */ | |
257 | #define CLNPOVAL_LOWDELAY 0x04 /* low transit delay */ | |
258 | ||
d4b75c41 KS |
259 | #define CLNPOVAL_PARTRT 0x00 /* partial source routing */ |
260 | #define CLNPOVAL_COMPRT 0x01 /* complete source routing */ | |
261 | ||
262 | /* | |
263 | * Clnp flags used in a control block flags field. | |
264 | * NOTE: these must be out of the range of bits defined in ../net/raw_cb.h | |
265 | */ | |
266 | #define CLNP_NO_SEG 0x010 /* segmentation not permitted */ | |
267 | #define CLNP_NO_ER 0x020 /* do not generate ERs */ | |
268 | #define CLNP_SEND_RAW 0x080 /* send pkt as RAW DT rather than TP DT */ | |
269 | #define CLNP_NO_CKSUM 0x100 /* don't use clnp checksum */ | |
52ac7ba2 | 270 | #define CLNP_ECHO 0x200 /* send echo request */ |
d4b75c41 | 271 | #define CLNP_NOCACHE 0x400 /* don't store cache information */ |
52ac7ba2 | 272 | #define CLNP_ECHOR 0x800 /* send echo reply */ |
d4b75c41 KS |
273 | |
274 | /* valid clnp flags */ | |
275 | #define CLNP_VFLAGS (CLNP_SEND_RAW|CLNP_NO_SEG|CLNP_NO_ER|CLNP_NO_CKSUM\ | |
52ac7ba2 | 276 | |CLNP_ECHO|CLNP_NOCACHE|CLNP_ECHOR) |
d4b75c41 KS |
277 | |
278 | /* | |
279 | * Constants used by clnp | |
280 | */ | |
281 | #define CLNP_HDR_MIN (sizeof (struct clnp_fixed)) | |
282 | #define CLNP_HDR_MAX (254) | |
283 | #define CLNP_TTL_UNITS 2 /* 500 milliseconds */ | |
284 | #define CLNP_TTL 15*CLNP_TTL_UNITS /* time to live (seconds) */ | |
285 | #define ISO8473_V1 0x01 | |
286 | ||
287 | /* | |
288 | * Clnp packet types | |
289 | * In order to test raw clnp and tp/clnp simultaneously, a third type of | |
290 | * packet has been defined: CLNP_RAW. This is done so that the input | |
291 | * routine can switch to the correct input routine (rclnp_input or | |
292 | * tpclnp_input) based on the type field. If clnp had a higher level protocol | |
293 | * field, this would not be necessary. | |
294 | */ | |
295 | #define CLNP_DT 0x1C /* normal data */ | |
296 | #define CLNP_ER 0x01 /* error report */ | |
297 | #define CLNP_RAW 0x1D /* debug only */ | |
298 | #define CLNP_EC 0x1E /* echo packet */ | |
299 | #define CLNP_ECR 0x1F /* echo reply */ | |
300 | ||
301 | /* | |
302 | * ER pdu error codes | |
303 | */ | |
304 | #define GEN_NOREAS 0x00 /* reason not specified */ | |
305 | #define GEN_PROTOERR 0x01 /* protocol procedure error */ | |
306 | #define GEN_BADCSUM 0x02 /* incorrect checksum */ | |
307 | #define GEN_CONGEST 0x03 /* pdu discarded due to congestion */ | |
308 | #define GEN_HDRSYNTAX 0x04 /* header syntax error */ | |
309 | #define GEN_SEGNEEDED 0x05 /* segmentation needed, but not permitted */ | |
310 | #define GEN_INCOMPLETE 0x06 /* incomplete pdu received */ | |
311 | #define GEN_DUPOPT 0x07 /* duplicate option */ | |
312 | ||
313 | /* address errors */ | |
314 | #define ADDR_DESTUNREACH 0x80 /* destination address unreachable */ | |
315 | #define ADDR_DESTUNKNOWN 0x81 /* destination address unknown */ | |
316 | ||
317 | /* source routing */ | |
318 | #define SRCRT_UNSPECERR 0x90 /* unspecified src rt error */ | |
319 | #define SRCRT_SYNTAX 0x91 /* syntax error in src rt field */ | |
320 | #define SRCRT_UNKNOWNADDR 0x92 /* unknown addr in src rt field */ | |
321 | #define SRCRT_BADPATH 0x93 /* path not acceptable */ | |
322 | ||
323 | /* lifetime */ | |
324 | #define TTL_EXPTRANSIT 0xa0 /* lifetime expired during transit */ | |
325 | #define TTL_EXPREASS 0xa1 /* lifetime expired during reassembly */ | |
326 | ||
327 | /* pdu discarded */ | |
328 | #define DISC_UNSUPPOPT 0xb0 /* unsupported option not specified? */ | |
329 | #define DISC_UNSUPPVERS 0xb1 /* unsupported protocol version */ | |
330 | #define DISC_UNSUPPSECURE 0xb2 /* unsupported security option */ | |
331 | #define DISC_UNSUPPSRCRT 0xb3 /* unsupported src rt option */ | |
332 | #define DISC_UNSUPPRECRT 0xb4 /* unsupported rec rt option */ | |
333 | ||
334 | /* reassembly */ | |
335 | #define REASS_INTERFERE 0xc0 /* reassembly interference */ | |
4f565be6 KS |
336 | #define CLNP_ERRORS 22 |
337 | ||
338 | ||
339 | #ifdef KERNEL | |
340 | int clnp_er_index(); | |
341 | #endif | |
342 | ||
343 | #ifdef CLNP_ER_CODES | |
344 | u_char clnp_er_codes[CLNP_ERRORS] = { | |
345 | GEN_NOREAS, GEN_PROTOERR, GEN_BADCSUM, GEN_CONGEST, | |
346 | GEN_HDRSYNTAX, GEN_SEGNEEDED, GEN_INCOMPLETE, GEN_DUPOPT, | |
347 | ADDR_DESTUNREACH, ADDR_DESTUNKNOWN, | |
348 | SRCRT_UNSPECERR, SRCRT_SYNTAX, SRCRT_UNKNOWNADDR, SRCRT_BADPATH, | |
349 | TTL_EXPTRANSIT, TTL_EXPREASS, | |
350 | DISC_UNSUPPOPT, DISC_UNSUPPVERS, DISC_UNSUPPSECURE, | |
351 | DISC_UNSUPPSRCRT, DISC_UNSUPPRECRT, REASS_INTERFERE }; | |
352 | #endif | |
d4b75c41 KS |
353 | |
354 | #ifdef TROLL | |
355 | ||
356 | #define TR_DUPEND 0x01 /* duplicate end of fragment */ | |
357 | #define TR_DUPPKT 0x02 /* duplicate entire packet */ | |
358 | #define TR_DROPPKT 0x04 /* drop packet on output */ | |
359 | #define TR_TRIM 0x08 /* trim bytes from packet */ | |
360 | #define TR_CHANGE 0x10 /* change bytes in packet */ | |
361 | #define TR_MTU 0x20 /* delta to change device mtu */ | |
362 | #define TR_CHUCK 0x40 /* drop packet in rclnp_input */ | |
363 | #define TR_BLAST 0x80 /* force rclnp_output to blast many packet */ | |
364 | #define TR_RAWLOOP 0x100 /* make if_loop call clnpintr directly */ | |
365 | struct troll { | |
366 | int tr_ops; /* operations to perform */ | |
367 | float tr_dup_size; /* % to duplicate */ | |
368 | float tr_dup_freq; /* frequency to duplicate packets */ | |
369 | float tr_drop_freq; /* frequence to drop packets */ | |
370 | int tr_mtu_adj; /* delta to adjust if mtu */ | |
371 | int tr_blast_cnt; /* # of pkts to blast out */ | |
372 | }; | |
373 | ||
374 | #define SN_OUTPUT(clcp, m)\ | |
e2dcca43 | 375 | troll_output(clcp->clc_ifp, m, clcp->clc_firsthop, clcp->clc_rt) |
d4b75c41 | 376 | |
e2dcca43 KS |
377 | #define SN_MTU(ifp, rt) (((rt && rt->rt_rmx.rmx_mtu) ?\ |
378 | rt->rt_rmx.rmx_mtu : clnp_badmtu(ifp, rt, __LINE__, __FILE__))\ | |
379 | - trollctl.tr_mtu_adj) | |
d4b75c41 | 380 | |
a50e2bc0 KS |
381 | #ifdef KERNEL |
382 | extern float troll_random; | |
383 | #endif | |
384 | ||
d4b75c41 KS |
385 | #else /* NO TROLL */ |
386 | ||
387 | #define SN_OUTPUT(clcp, m)\ | |
e2dcca43 | 388 | (*clcp->clc_ifp->if_output)(clcp->clc_ifp, m, clcp->clc_firsthop, clcp->clc_rt) |
d4b75c41 | 389 | |
e2dcca43 KS |
390 | #define SN_MTU(ifp, rt) (((rt && rt->rt_rmx.rmx_mtu) ?\ |
391 | rt->rt_rmx.rmx_mtu : clnp_badmtu(ifp, rt, __LINE__, __FILE__))) | |
d4b75c41 KS |
392 | |
393 | #endif TROLL | |
394 | ||
395 | /* | |
396 | * Macro to remove an address from a clnp header | |
397 | */ | |
398 | #define CLNP_EXTRACT_ADDR(isoa, hoff, hend)\ | |
399 | {\ | |
400 | isoa.isoa_len = (u_char)*hoff;\ | |
401 | if ((((++hoff) + isoa.isoa_len) > hend) ||\ | |
402 | (isoa.isoa_len > 20) || (isoa.isoa_len == 0)) {\ | |
403 | hoff = (caddr_t)0;\ | |
404 | } else {\ | |
a50e2bc0 | 405 | (void) bcopy(hoff, (caddr_t)isoa.isoa_genaddr, isoa.isoa_len);\ |
d4b75c41 KS |
406 | hoff += isoa.isoa_len;\ |
407 | }\ | |
408 | } | |
409 | ||
410 | /* | |
411 | * Macro to insert an address into a clnp header | |
412 | */ | |
a50e2bc0 KS |
413 | #define CLNP_INSERT_ADDR(hoff, isoa)\ |
414 | *hoff++ = (isoa).isoa_len;\ | |
415 | (void) bcopy((caddr_t)((isoa).isoa_genaddr), hoff, (isoa).isoa_len);\ | |
416 | hoff += (isoa).isoa_len; | |
d4b75c41 KS |
417 | |
418 | /* | |
419 | * Clnp hdr cache. Whenever a clnp packet is sent, a copy of the | |
420 | * header is made and kept in this cache. In addition to a copy of | |
421 | * the cached clnp hdr, the cache contains | |
422 | * information necessary to determine whether the new packet | |
423 | * to send requires a new header to be built. | |
424 | */ | |
425 | struct clnp_cache { | |
426 | /* these fields are used to check the validity of the cache */ | |
427 | struct iso_addr clc_dst; /* destination of packet */ | |
428 | struct mbuf *clc_options; /* ptr to options mbuf */ | |
429 | int clc_flags; /* flags passed to clnp_output */ | |
430 | ||
431 | /* these fields are state that clnp_output requires to finish the pkt */ | |
432 | int clc_segoff; /* offset of seg part of header */ | |
a544c9af KS |
433 | struct rtentry *clc_rt; /* ptr to rtentry (points into |
434 | the route structure) */ | |
e2dcca43 KS |
435 | struct sockaddr *clc_firsthop; /* first hop of packet */ |
436 | struct ifnet *clc_ifp; /* ptr to interface structure */ | |
437 | struct iso_ifaddr *clc_ifa; /* ptr to interface address */ | |
d4b75c41 KS |
438 | struct mbuf *clc_hdr; /* cached pkt hdr (finally)! */ |
439 | }; | |
440 | ||
441 | #ifndef satosiso | |
442 | #define satosiso(sa)\ | |
443 | ((struct sockaddr_iso *)(sa)) | |
444 | #endif | |
445 | ||
446 | #ifdef KERNEL | |
447 | caddr_t clnp_insert_addr(); | |
448 | struct iso_addr *clnp_srcaddr(); | |
449 | struct mbuf *clnp_reass(); | |
450 | #ifdef TROLL | |
451 | struct troll trollctl; | |
452 | #endif TROLL | |
453 | #endif KERNEL |