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7bcd1bb8 | 1 | /*- |
10cc936d KB |
2 | * Copyright (c) 1991, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
7bcd1bb8 KB |
4 | * |
5 | * %sccs.include.redist.c% | |
6 | * | |
10cc936d | 7 | * @(#)clnp_input.c 8.1 (Berkeley) %G% |
7bcd1bb8 KB |
8 | */ |
9 | ||
3652553f 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 | */ | |
b8c78cd2 KS |
36 | /* $Header: /var/src/sys/netiso/RCS/clnp_input.c,v 5.1 89/02/09 16:20:32 hagens Exp $ */ |
37 | /* $Source: /var/src/sys/netiso/RCS/clnp_input.c,v $ */ | |
3652553f | 38 | |
5548a02f KB |
39 | #include <sys/param.h> |
40 | #include <sys/mbuf.h> | |
41 | #include <sys/domain.h> | |
42 | #include <sys/protosw.h> | |
43 | #include <sys/socket.h> | |
44 | #include <sys/socketvar.h> | |
45 | #include <sys/errno.h> | |
46 | #include <sys/time.h> | |
47 | ||
48 | #include <net/if.h> | |
49 | #include <net/if_types.h> | |
50 | #include <net/route.h> | |
51 | ||
52 | #include <netiso/iso.h> | |
53 | #include <netiso/iso_var.h> | |
54 | #include <netiso/iso_snpac.h> | |
55 | #include <netiso/clnp.h> | |
56 | #include <netiso/clnl.h> | |
57 | #include <netiso/esis.h> | |
58 | #include <netinet/in_systm.h> | |
59 | #include <netinet/ip.h> | |
60 | #include <netinet/if_ether.h> | |
61 | #include <netiso/eonvar.h> | |
62 | #include <netiso/clnp_stat.h> | |
63 | #include <netiso/argo_debug.h> | |
3652553f KS |
64 | |
65 | #ifdef ISO | |
66 | u_char clnp_protox[ISOPROTO_MAX]; | |
67 | struct clnl_protosw clnl_protox[256]; | |
68 | int clnpqmaxlen = IFQ_MAXLEN; /* RAH? why is this a variable */ | |
69 | struct mbuf *clnp_data_ck(); | |
70 | ||
71 | int clnp_input(); | |
72 | ||
73 | int esis_input(); | |
74 | ||
75 | #ifdef ISO_X25ESIS | |
76 | int x25esis_input(); | |
4d8170e5 | 77 | #endif /* ISO_X25ESIS */ |
3652553f KS |
78 | |
79 | /* | |
80 | * FUNCTION: clnp_init | |
81 | * | |
82 | * PURPOSE: clnp initialization. Fill in clnp switch tables. | |
83 | * | |
84 | * RETURNS: none | |
85 | * | |
86 | * SIDE EFFECTS: fills in clnp_protox table with correct offsets into | |
87 | * the isosw table. | |
88 | * | |
89 | * NOTES: | |
90 | */ | |
91 | clnp_init() | |
92 | { | |
93 | register struct protosw *pr; | |
94 | ||
95 | /* | |
96 | * CLNP protox initialization | |
97 | */ | |
98 | if ((pr = pffindproto(PF_ISO, ISOPROTO_RAW, SOCK_RAW)) == 0) | |
99 | printf("clnl_init: no raw CLNP\n"); | |
100 | else | |
101 | clnp_protox[ISOPROTO_RAW] = pr - isosw; | |
102 | ||
103 | if ((pr = pffindproto(PF_ISO, ISOPROTO_TP, SOCK_SEQPACKET)) == 0) | |
104 | printf("clnl_init: no tp/clnp\n"); | |
105 | else | |
106 | clnp_protox[ISOPROTO_TP] = pr - isosw; | |
107 | ||
108 | /* | |
109 | * CLNL protox initialization | |
110 | */ | |
111 | clnl_protox[ISO8473_CLNP].clnl_input = clnp_input; | |
112 | ||
113 | clnlintrq.ifq_maxlen = clnpqmaxlen; | |
114 | } | |
115 | ||
116 | /* | |
117 | * FUNCTION: clnlintr | |
118 | * | |
119 | * PURPOSE: Process a packet on the clnl input queue | |
120 | * | |
121 | * RETURNS: nothing. | |
122 | * | |
123 | * SIDE EFFECTS: | |
124 | * | |
125 | * NOTES: | |
126 | */ | |
127 | clnlintr() | |
128 | { | |
129 | register struct mbuf *m; /* ptr to first mbuf of pkt */ | |
130 | register struct clnl_fixed *clnl; /* ptr to fixed part of clnl hdr */ | |
3652553f KS |
131 | int s; /* save and restore priority */ |
132 | struct clnl_protosw *clnlsw;/* ptr to protocol switch */ | |
133 | struct snpa_hdr sh; /* subnetwork hdr */ | |
134 | ||
135 | /* | |
136 | * Get next datagram off clnl input queue | |
137 | */ | |
138 | next: | |
139 | s = splimp(); | |
6367ca85 KS |
140 | /* IF_DEQUEUESNPAHDR(&clnlintrq, m, sh);*/ |
141 | IF_DEQUEUE(&clnlintrq, m); | |
a50e2bc0 | 142 | splx(s); |
3652553f | 143 | |
6367ca85 | 144 | |
6367ca85 KS |
145 | if (m == 0) /* nothing to do */ |
146 | return; | |
c2bb180a | 147 | if ((m->m_flags & M_PKTHDR) == 0 || m->m_pkthdr.rcvif == 0) { |
6367ca85 KS |
148 | m_freem(m); |
149 | goto next; | |
c2bb180a KS |
150 | } else { |
151 | register struct ifaddr *ifa; | |
152 | for (ifa = m->m_pkthdr.rcvif->if_addrlist; ifa; ifa = ifa->ifa_next) | |
153 | if (ifa->ifa_addr->sa_family == AF_ISO) | |
154 | break; | |
155 | if (ifa == 0) { | |
156 | m_freem(m); | |
157 | goto next; | |
158 | } | |
6367ca85 | 159 | } |
a50e2bc0 KS |
160 | bzero((caddr_t)&sh, sizeof(sh)); |
161 | sh.snh_flags = m->m_flags & (M_MCAST|M_BCAST); | |
162 | switch((sh.snh_ifp = m->m_pkthdr.rcvif)->if_type) { | |
163 | extern int ether_output(); | |
164 | case IFT_EON: | |
165 | bcopy(mtod(m, caddr_t), (caddr_t)sh.snh_dhost, sizeof(u_long)); | |
166 | bcopy(sizeof(u_long) + mtod(m, caddr_t), | |
167 | (caddr_t)sh.snh_shost, sizeof(u_long)); | |
168 | sh.snh_dhost[4] = mtod(m, u_char *)[sizeof(struct ip) + | |
169 | _offsetof(struct eon_hdr, eonh_class)]; | |
170 | m->m_data += EONIPLEN; | |
171 | m->m_len -= EONIPLEN; | |
172 | m->m_pkthdr.len -= EONIPLEN; | |
173 | break; | |
174 | ||
175 | default: | |
176 | if (sh.snh_ifp->if_output == ether_output) { | |
44f52ea5 | 177 | bcopy((caddr_t)(mtod(m, struct ether_header *)->ether_dhost), |
a50e2bc0 | 178 | (caddr_t)sh.snh_dhost, 2*sizeof(sh.snh_dhost)); |
44f52ea5 KS |
179 | m->m_data += sizeof (struct ether_header); |
180 | m->m_len -= sizeof (struct ether_header); | |
181 | m->m_pkthdr.len -= sizeof (struct ether_header); | |
a50e2bc0 KS |
182 | } |
183 | } | |
3652553f KS |
184 | IFDEBUG(D_INPUT) |
185 | int i; | |
186 | printf("clnlintr: src:"); | |
187 | for (i=0; i<6; i++) | |
188 | printf("%x%c", sh.snh_shost[i] & 0xff, (i<5) ? ':' : ' '); | |
189 | printf(" dst:"); | |
190 | for (i=0; i<6; i++) | |
191 | printf("%x%c", sh.snh_dhost[i] & 0xff, (i<5) ? ':' : ' '); | |
192 | printf("\n"); | |
193 | ENDDEBUG | |
194 | ||
3652553f KS |
195 | /* |
196 | * Get the fixed part of the clnl header into the first mbuf. | |
197 | * Drop the packet if this fails. | |
198 | * Do not call m_pullup if we have a cluster mbuf or the | |
199 | * data is not there. | |
200 | */ | |
201 | if ((IS_CLUSTER(m) || (m->m_len < sizeof(struct clnl_fixed))) && | |
202 | ((m = m_pullup(m, sizeof(struct clnl_fixed))) == 0)) { | |
203 | INCSTAT(cns_toosmall); /* TODO: use clnl stats */ | |
204 | goto next; /* m_pullup discards mbuf */ | |
205 | } | |
206 | ||
207 | clnl = mtod(m, struct clnl_fixed *); | |
208 | ||
209 | /* | |
210 | * Drop packet if the length of the header is not reasonable. | |
211 | */ | |
212 | if ((clnl->cnf_hdr_len < CLNP_HDR_MIN) || | |
213 | (clnl->cnf_hdr_len > CLNP_HDR_MAX)) { | |
214 | INCSTAT(cns_badhlen); /* TODO: use clnl stats */ | |
215 | m_freem(m); | |
216 | goto next; | |
217 | } | |
218 | ||
219 | /* | |
220 | * If the header is not contained in this mbuf, make it so. | |
221 | * Drop packet if this fails. | |
222 | * Note: m_pullup will allocate a cluster mbuf if necessary | |
223 | */ | |
224 | if (clnl->cnf_hdr_len > m->m_len) { | |
a50e2bc0 | 225 | if ((m = m_pullup(m, (int)clnl->cnf_hdr_len)) == 0) { |
3652553f KS |
226 | INCSTAT(cns_badhlen); /* TODO: use clnl stats */ |
227 | goto next; /* m_pullup discards mbuf */ | |
228 | } | |
229 | clnl = mtod(m, struct clnl_fixed *); | |
230 | } | |
231 | ||
232 | clnlsw = &clnl_protox[clnl->cnf_proto_id]; | |
233 | ||
234 | ||
235 | if (clnlsw->clnl_input) | |
236 | (*clnlsw->clnl_input) (m, &sh); | |
237 | else | |
238 | m_freem(m); | |
239 | ||
240 | goto next; | |
241 | } | |
242 | ||
243 | /* | |
244 | * FUNCTION: clnp_input | |
245 | * | |
246 | * PURPOSE: process an incoming clnp packet | |
247 | * | |
248 | * RETURNS: nothing | |
249 | * | |
250 | * SIDE EFFECTS: increments fields of clnp_stat structure. | |
251 | * | |
252 | * NOTES: | |
253 | * TODO: I would like to make seg_part a pointer into the mbuf, but | |
254 | * will it be correctly aligned? | |
255 | */ | |
a50e2bc0 | 256 | clnp_input(m, shp) |
3652553f KS |
257 | struct mbuf *m; /* ptr to first mbuf of pkt */ |
258 | struct snpa_hdr *shp; /* subnetwork header */ | |
259 | { | |
260 | register struct clnp_fixed *clnp; /* ptr to fixed part of header */ | |
56e7e916 KS |
261 | struct sockaddr_iso source; /* source address of pkt */ |
262 | struct sockaddr_iso target; /* destination address of pkt */ | |
263 | #define src source.siso_addr | |
264 | #define dst target.siso_addr | |
3652553f KS |
265 | caddr_t hoff; /* current offset in packet */ |
266 | caddr_t hend; /* address of end of header info */ | |
267 | struct clnp_segment seg_part; /* segment part of hdr */ | |
268 | int seg_off=0; /* offset of segment part of hdr */ | |
269 | int seg_len;/* length of packet data&hdr in bytes */ | |
270 | struct clnp_optidx oidx, *oidxp = NULL; /* option index */ | |
271 | extern int iso_systype; /* used by ESIS config resp */ | |
56e7e916 | 272 | extern struct sockaddr_iso blank_siso; /* used for initializing */ |
b8c78cd2 KS |
273 | int need_afrin = 0; |
274 | /* true if congestion experienced */ | |
275 | /* which means you need afrin nose */ | |
276 | /* spray. How clever! */ | |
3652553f KS |
277 | |
278 | IFDEBUG(D_INPUT) | |
279 | printf( | |
b8c78cd2 KS |
280 | "clnp_input: proccessing dg; First mbuf m_len %d, m_type x%x, %s\n", |
281 | m->m_len, m->m_type, IS_CLUSTER(m) ? "cluster" : "normal"); | |
3652553f | 282 | ENDDEBUG |
b8c78cd2 | 283 | need_afrin = 0; |
3652553f KS |
284 | |
285 | /* | |
286 | * If no iso addresses have been set, there is nothing | |
287 | * to do with the packet. | |
288 | */ | |
289 | if (iso_ifaddr == NULL) { | |
290 | clnp_discard(m, ADDR_DESTUNREACH); | |
291 | return; | |
292 | } | |
293 | ||
294 | INCSTAT(cns_total); | |
295 | clnp = mtod(m, struct clnp_fixed *); | |
296 | ||
b8c78cd2 KS |
297 | IFDEBUG(D_DUMPIN) |
298 | struct mbuf *mhead; | |
299 | int total_len = 0; | |
300 | printf("clnp_input: clnp header:\n"); | |
301 | dump_buf(mtod(m, caddr_t), clnp->cnf_hdr_len); | |
302 | printf("clnp_input: mbuf chain:\n"); | |
303 | for (mhead = m; mhead != NULL; mhead=mhead->m_next) { | |
304 | printf("m x%x, len %d\n", mhead, mhead->m_len); | |
305 | total_len += mhead->m_len; | |
306 | } | |
307 | printf("clnp_input: total length of mbuf chain %d:\n", total_len); | |
308 | ENDDEBUG | |
309 | ||
3652553f KS |
310 | /* |
311 | * Compute checksum (if necessary) and drop packet if | |
312 | * checksum does not match | |
313 | */ | |
a50e2bc0 | 314 | if (CKSUM_REQUIRED(clnp) && iso_check_csum(m, (int)clnp->cnf_hdr_len)) { |
3652553f KS |
315 | INCSTAT(cns_badcsum); |
316 | clnp_discard(m, GEN_BADCSUM); | |
a50e2bc0 | 317 | return; |
3652553f KS |
318 | } |
319 | ||
320 | if (clnp->cnf_vers != ISO8473_V1) { | |
321 | INCSTAT(cns_badvers); | |
322 | clnp_discard(m, DISC_UNSUPPVERS); | |
a50e2bc0 | 323 | return; |
3652553f KS |
324 | } |
325 | ||
326 | ||
327 | /* check mbuf data length: clnp_data_ck will free mbuf upon error */ | |
328 | CTOH(clnp->cnf_seglen_msb, clnp->cnf_seglen_lsb, seg_len); | |
329 | if ((m = clnp_data_ck(m, seg_len)) == 0) | |
a50e2bc0 | 330 | return; |
3652553f KS |
331 | |
332 | clnp = mtod(m, struct clnp_fixed *); | |
333 | hend = (caddr_t)clnp + clnp->cnf_hdr_len; | |
334 | ||
335 | /* | |
336 | * extract the source and destination address | |
337 | * drop packet on failure | |
338 | */ | |
56e7e916 | 339 | source = target = blank_siso; |
3652553f KS |
340 | |
341 | hoff = (caddr_t)clnp + sizeof(struct clnp_fixed); | |
342 | CLNP_EXTRACT_ADDR(dst, hoff, hend); | |
343 | if (hoff == (caddr_t)0) { | |
344 | INCSTAT(cns_badaddr); | |
345 | clnp_discard(m, GEN_INCOMPLETE); | |
a50e2bc0 | 346 | return; |
3652553f KS |
347 | } |
348 | CLNP_EXTRACT_ADDR(src, hoff, hend); | |
349 | if (hoff == (caddr_t)0) { | |
350 | INCSTAT(cns_badaddr); | |
351 | clnp_discard(m, GEN_INCOMPLETE); | |
a50e2bc0 | 352 | return; |
3652553f KS |
353 | } |
354 | ||
355 | IFDEBUG(D_INPUT) | |
356 | printf("clnp_input: from %s", clnp_iso_addrp(&src)); | |
357 | printf(" to %s\n", clnp_iso_addrp(&dst)); | |
358 | ENDDEBUG | |
359 | ||
360 | /* | |
361 | * extract the segmentation information, if it is present. | |
362 | * drop packet on failure | |
363 | */ | |
a50e2bc0 KS |
364 | if (((clnp->cnf_type & CNF_TYPE) != CLNP_ER) && |
365 | (clnp->cnf_type & CNF_SEG_OK)) { | |
3652553f KS |
366 | if (hoff + sizeof(struct clnp_segment) > hend) { |
367 | INCSTAT(cns_noseg); | |
368 | clnp_discard(m, GEN_INCOMPLETE); | |
a50e2bc0 | 369 | return; |
3652553f KS |
370 | } else { |
371 | (void) bcopy(hoff, (caddr_t)&seg_part, sizeof(struct clnp_segment)); | |
372 | /* make sure segmentation fields are in host order */ | |
373 | seg_part.cng_id = ntohs(seg_part.cng_id); | |
374 | seg_part.cng_off = ntohs(seg_part.cng_off); | |
375 | seg_part.cng_tot_len = ntohs(seg_part.cng_tot_len); | |
376 | seg_off = hoff - (caddr_t)clnp; | |
377 | hoff += sizeof(struct clnp_segment); | |
378 | } | |
379 | } | |
380 | ||
381 | /* | |
382 | * process options if present. If clnp_opt_sanity returns | |
383 | * false (indicating an error was found in the options) or | |
384 | * an unsupported option was found | |
385 | * then drop packet and emit an ER. | |
386 | */ | |
387 | if (hoff < hend) { | |
388 | int errcode; | |
389 | ||
390 | oidxp = &oidx; | |
391 | errcode = clnp_opt_sanity(m, hoff, hend-hoff, oidxp); | |
392 | ||
393 | /* we do not support security */ | |
394 | if ((errcode == 0) && (oidxp->cni_securep)) | |
395 | errcode = DISC_UNSUPPSECURE; | |
396 | ||
397 | /* the er option is valid with ER pdus only */ | |
398 | if ((errcode == 0) && (oidxp->cni_er_reason != ER_INVALREAS) && | |
a50e2bc0 | 399 | ((clnp->cnf_type & CNF_TYPE) != CLNP_ER)) |
3652553f KS |
400 | errcode = DISC_UNSUPPOPT; |
401 | ||
b8c78cd2 KS |
402 | #ifdef DECBIT |
403 | /* check if the congestion experienced bit is set */ | |
404 | if (oidxp->cni_qos_formatp) { | |
405 | caddr_t qosp = CLNP_OFFTOOPT(m, oidxp->cni_qos_formatp); | |
406 | u_char qos = *qosp; | |
407 | ||
408 | need_afrin = ((qos & (CLNPOVAL_GLOBAL|CLNPOVAL_CONGESTED)) == | |
409 | (CLNPOVAL_GLOBAL|CLNPOVAL_CONGESTED)); | |
410 | if (need_afrin) | |
411 | INCSTAT(cns_congest_rcvd); | |
412 | } | |
4d8170e5 | 413 | #endif /* DECBIT */ |
b8c78cd2 | 414 | |
3652553f KS |
415 | if (errcode != 0) { |
416 | clnp_discard(m, (char)errcode); | |
417 | IFDEBUG(D_INPUT) | |
418 | printf("clnp_input: dropped (err x%x) due to bad options\n", | |
419 | errcode); | |
420 | ENDDEBUG | |
a50e2bc0 | 421 | return; |
3652553f KS |
422 | } |
423 | } | |
424 | ||
425 | /* | |
426 | * check if this packet is for us. if not, then forward | |
427 | */ | |
428 | if (clnp_ours(&dst) == 0) { | |
429 | IFDEBUG(D_INPUT) | |
430 | printf("clnp_input: forwarding packet not for us\n"); | |
431 | ENDDEBUG | |
432 | clnp_forward(m, seg_len, &dst, oidxp, seg_off, shp); | |
a50e2bc0 | 433 | return; |
3652553f KS |
434 | } |
435 | ||
436 | /* | |
437 | * ESIS Configuration Response Function | |
438 | * | |
439 | * If the packet received was sent to the multicast address | |
440 | * all end systems, then send an esh to the source | |
441 | */ | |
a50e2bc0 | 442 | if ((shp->snh_flags & M_MCAST) && (iso_systype == SNPA_ES)) { |
3652553f KS |
443 | extern short esis_holding_time; |
444 | ||
445 | esis_shoutput(shp->snh_ifp, ESIS_ESH, esis_holding_time, | |
c2bb180a | 446 | shp->snh_shost, 6, &dst); |
3652553f KS |
447 | } |
448 | ||
449 | /* | |
450 | * If this is a fragment, then try to reassemble it. If clnp_reass | |
451 | * returns non NULL, the packet has been reassembled, and should | |
452 | * be give to TP. Otherwise the fragment has been delt with | |
453 | * by the reassembly code (either stored or deleted). In either case | |
454 | * we should have nothing more to do with it. | |
455 | */ | |
a50e2bc0 KS |
456 | if (((clnp->cnf_type & CNF_TYPE) != CLNP_ER) && |
457 | (clnp->cnf_type & CNF_SEG_OK) && | |
3652553f KS |
458 | (seg_len != seg_part.cng_tot_len)) { |
459 | struct mbuf *m0; | |
460 | ||
461 | if ((m0 = clnp_reass(m, &src, &dst, &seg_part)) != NULL) { | |
462 | m = m0; | |
463 | clnp = mtod(m, struct clnp_fixed *); | |
4f565be6 | 464 | INCSTAT(cns_reassembled); |
3652553f | 465 | } else { |
a50e2bc0 | 466 | return; |
3652553f KS |
467 | } |
468 | } | |
469 | ||
470 | /* | |
471 | * give the packet to the higher layer | |
3652553f KS |
472 | * |
473 | * Note: the total length of packet | |
474 | * is the total length field of the segmentation part, | |
475 | * or, if absent, the segment length field of the | |
476 | * header. | |
477 | */ | |
4f565be6 | 478 | INCSTAT(cns_delivered); |
a50e2bc0 | 479 | switch (clnp->cnf_type & CNF_TYPE) { |
3652553f KS |
480 | case CLNP_ER: |
481 | /* | |
482 | * This ER must have the er option. | |
483 | * If the option is not present, discard datagram. | |
484 | */ | |
485 | if (oidxp == NULL || oidxp->cni_er_reason == ER_INVALREAS) { | |
486 | clnp_discard(m, GEN_HDRSYNTAX); | |
487 | } else { | |
488 | clnp_er_input(m, &src, oidxp->cni_er_reason); | |
489 | } | |
490 | break; | |
491 | ||
492 | case CLNP_DT: | |
56e7e916 | 493 | (*isosw[clnp_protox[ISOPROTO_TP]].pr_input)(m, &source, &target, |
4e3fecca | 494 | clnp->cnf_hdr_len, need_afrin); |
3652553f KS |
495 | break; |
496 | ||
497 | case CLNP_RAW: | |
498 | case CLNP_ECR: | |
499 | IFDEBUG(D_INPUT) | |
500 | printf("clnp_input: raw input of %d bytes\n", | |
a50e2bc0 | 501 | clnp->cnf_type & CNF_SEG_OK ? seg_part.cng_tot_len : seg_len); |
3652553f | 502 | ENDDEBUG |
bec1b7dc | 503 | (*isosw[clnp_protox[ISOPROTO_RAW]].pr_input)(m, &source, &target, |
3652553f KS |
504 | clnp->cnf_hdr_len); |
505 | break; | |
506 | ||
507 | case CLNP_EC: | |
508 | IFDEBUG(D_INPUT) | |
509 | printf("clnp_input: echoing packet\n"); | |
510 | ENDDEBUG | |
52ac7ba2 KS |
511 | (void)clnp_echoreply(m, |
512 | (clnp->cnf_type & CNF_SEG_OK ? (int)seg_part.cng_tot_len : seg_len), | |
513 | &source, &target, oidxp); | |
3652553f KS |
514 | break; |
515 | ||
516 | default: | |
a50e2bc0 KS |
517 | printf("clnp_input: unknown clnp pkt type %d\n", |
518 | clnp->cnf_type & CNF_TYPE); | |
4f565be6 KS |
519 | clnp_stat.cns_delivered--; |
520 | clnp_stat.cns_noproto++; | |
3652553f KS |
521 | clnp_discard(m, GEN_HDRSYNTAX); |
522 | break; | |
523 | } | |
524 | } | |
4d8170e5 | 525 | #endif /* ISO */ |