| 1 | |
| 2 | /*********************************************************** |
| 3 | Copyright IBM Corporation 1987 |
| 4 | |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
| 9 | provided that the above copyright notice appear in all copies and that |
| 10 | both that copyright notice and this permission notice appear in |
| 11 | supporting documentation, and that the name of IBM not be |
| 12 | used in advertising or publicity pertaining to distribution of the |
| 13 | software without specific, written prior permission. |
| 14 | |
| 15 | IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 16 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 17 | IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 18 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 19 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 20 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 21 | SOFTWARE. |
| 22 | |
| 23 | ******************************************************************/ |
| 24 | |
| 25 | /* |
| 26 | * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison |
| 27 | */ |
| 28 | /* $Header: /var/src/sys/netiso/RCS/clnp.h,v 5.1 89/02/09 16:17:22 hagens Exp $ */ |
| 29 | /* $Source: /var/src/sys/netiso/RCS/clnp.h,v $ */ |
| 30 | /* @(#)clnp.h 7.6 (Berkeley) %G% */ |
| 31 | |
| 32 | #ifndef BYTE_ORDER |
| 33 | /* |
| 34 | * Definitions for byte order, |
| 35 | * according to byte significance from low address to high. |
| 36 | */ |
| 37 | #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */ |
| 38 | #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ |
| 39 | #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */ |
| 40 | |
| 41 | #ifdef vax |
| 42 | #define BYTE_ORDER LITTLE_ENDIAN |
| 43 | #else |
| 44 | #define BYTE_ORDER BIG_ENDIAN /* mc68000, tahoe, most others */ |
| 45 | #endif |
| 46 | #endif BYTE_ORDER |
| 47 | |
| 48 | /* should be config option but cpp breaks with too many #defines */ |
| 49 | #define DECBIT |
| 50 | |
| 51 | /* |
| 52 | * Return true if the mbuf is a cluster mbuf |
| 53 | */ |
| 54 | #define IS_CLUSTER(m) ((m)->m_flags & M_EXT) |
| 55 | |
| 56 | /* |
| 57 | * Move the halfword into the two characters |
| 58 | */ |
| 59 | #define HTOC(msb, lsb, hword)\ |
| 60 | (msb) = (u_char)((hword) >> 8);\ |
| 61 | (lsb) = (u_char)((hword) & 0xff) |
| 62 | /* |
| 63 | * Move the two charcters into the halfword |
| 64 | */ |
| 65 | #define CTOH(msb, lsb, hword)\ |
| 66 | (hword) = ((msb) << 8) | (lsb) |
| 67 | |
| 68 | /* |
| 69 | * Return true if the checksum has been set - ie. the checksum is |
| 70 | * not zero |
| 71 | */ |
| 72 | #define CKSUM_REQUIRED(clnp)\ |
| 73 | (((clnp)->cnf_cksum_msb != 0) || ((clnp)->cnf_cksum_lsb != 0)) |
| 74 | |
| 75 | /* |
| 76 | * Fixed part of clnp header |
| 77 | */ |
| 78 | struct clnp_fixed { |
| 79 | u_char cnf_proto_id; /* network layer protocol identifier */ |
| 80 | u_char cnf_hdr_len; /* length indicator (octets) */ |
| 81 | u_char cnf_vers; /* version/protocol identifier extension */ |
| 82 | u_char cnf_ttl; /* lifetime (500 milliseconds) */ |
| 83 | u_char cnf_type; /* type code */ |
| 84 | /* Includes err_ok, more_segs, and seg_ok */ |
| 85 | u_char cnf_seglen_msb; /* pdu segment length (octets) high byte */ |
| 86 | u_char cnf_seglen_lsb; /* pdu segment length (octets) low byte */ |
| 87 | u_char cnf_cksum_msb; /* checksum high byte */ |
| 88 | u_char cnf_cksum_lsb; /* checksum low byte */ |
| 89 | }; |
| 90 | #define CNF_TYPE 0x1f |
| 91 | #define CNF_ERR_OK 0x20 |
| 92 | #define CNF_MORE_SEGS 0x40 |
| 93 | #define CNF_SEG_OK 0x80 |
| 94 | |
| 95 | #define CLNP_CKSUM_OFF 0x07 /* offset of checksum */ |
| 96 | |
| 97 | #define clnl_fixed clnp_fixed |
| 98 | |
| 99 | /* |
| 100 | * Segmentation part of clnp header |
| 101 | */ |
| 102 | struct clnp_segment { |
| 103 | u_short cng_id; /* data unit identifier */ |
| 104 | u_short cng_off; /* segment offset */ |
| 105 | u_short cng_tot_len; /* total length */ |
| 106 | }; |
| 107 | |
| 108 | /* |
| 109 | * Clnp fragment reassembly structures: |
| 110 | * |
| 111 | * All packets undergoing reassembly are linked together in |
| 112 | * clnp_fragl structures. Each clnp_fragl structure contains a |
| 113 | * pointer to the original clnp packet header, as well as a |
| 114 | * list of packet fragments. Each packet fragment |
| 115 | * is headed by a clnp_frag structure. This structure contains the |
| 116 | * offset of the first and last byte of the fragment, as well as |
| 117 | * a pointer to the data (an mbuf chain) of the fragment. |
| 118 | */ |
| 119 | |
| 120 | /* |
| 121 | * NOTE: |
| 122 | * The clnp_frag structure is stored in an mbuf immedately preceeding |
| 123 | * the fragment data. Since there are words in this struct, |
| 124 | * it must be word aligned. |
| 125 | * |
| 126 | * NOTE: |
| 127 | * All the fragment code assumes that the entire clnp header is |
| 128 | * contained in the first mbuf. |
| 129 | */ |
| 130 | struct clnp_frag { |
| 131 | u_int cfr_first; /* offset of first byte of this frag */ |
| 132 | u_int cfr_last; /* offset of last byte of this frag */ |
| 133 | u_int cfr_bytes; /* bytes to shave to get to data */ |
| 134 | struct mbuf *cfr_data; /* ptr to data for this frag */ |
| 135 | struct clnp_frag *cfr_next; /* next fragment in list */ |
| 136 | }; |
| 137 | |
| 138 | struct clnp_fragl { |
| 139 | struct iso_addr cfl_src; /* source of the pkt */ |
| 140 | struct iso_addr cfl_dst; /* destination of the pkt */ |
| 141 | u_short cfl_id; /* id of the pkt */ |
| 142 | u_char cfl_ttl; /* current ttl of pkt */ |
| 143 | u_short cfl_last; /* offset of last byte of packet */ |
| 144 | struct mbuf *cfl_orighdr; /* ptr to original header */ |
| 145 | struct clnp_frag *cfl_frags; /* linked list of fragments for pkt */ |
| 146 | struct clnp_fragl *cfl_next; /* next pkt being reassembled */ |
| 147 | }; |
| 148 | |
| 149 | /* |
| 150 | * The following structure is used to index into an options section |
| 151 | * of a clnp datagram. These values can be used without worry that |
| 152 | * offset or length fields are invalid or too big, etc. That is, |
| 153 | * the consistancy of the options will be guaranteed before this |
| 154 | * structure is filled in. Any pointer (field ending in p) is |
| 155 | * actually the offset from the beginning of the mbuf the option |
| 156 | * is contained in. A value of NULL for any pointer |
| 157 | * means that the option is not present. The length any option |
| 158 | * does not include the option code or option length fields. |
| 159 | */ |
| 160 | struct clnp_optidx { |
| 161 | u_short cni_securep; /* ptr to beginning of security option */ |
| 162 | char cni_secure_len; /* length of entire security option */ |
| 163 | |
| 164 | u_short cni_srcrt_s; /* offset of start of src rt option */ |
| 165 | u_short cni_srcrt_len; /* length of entire src rt option */ |
| 166 | |
| 167 | u_short cni_recrtp; /* ptr to beginning of recrt option */ |
| 168 | char cni_recrt_len; /* length of entire recrt option */ |
| 169 | |
| 170 | char cni_priorp; /* ptr to priority option */ |
| 171 | |
| 172 | u_short cni_qos_formatp; /* ptr to format of qos option */ |
| 173 | char cni_qos_len; /* length of entire qos option */ |
| 174 | |
| 175 | u_char cni_er_reason; /* reason from ER pdu option */ |
| 176 | |
| 177 | /* ESIS options */ |
| 178 | |
| 179 | u_short cni_esct; /* value from ISH ESCT option */ |
| 180 | |
| 181 | u_short cni_netmaskp; /* ptr to beginning of netmask option */ |
| 182 | char cni_netmask_len; /* length of entire netmask option */ |
| 183 | |
| 184 | u_short cni_snpamaskp; /* ptr to beginning of snpamask option */ |
| 185 | char cni_snpamask_len; /* length of entire snpamask option */ |
| 186 | |
| 187 | }; |
| 188 | |
| 189 | #define ER_INVALREAS 0xff /* code for invalid ER pdu discard reason */ |
| 190 | |
| 191 | /* given an mbuf and addr of option, return offset from data of mbuf */ |
| 192 | #define CLNP_OPTTOOFF(m, opt)\ |
| 193 | ((u_short) (opt - mtod(m, caddr_t))) |
| 194 | |
| 195 | /* given an mbuf and offset of option, return address of option */ |
| 196 | #define CLNP_OFFTOOPT(m, off)\ |
| 197 | ((caddr_t) (mtod(m, caddr_t) + off)) |
| 198 | |
| 199 | /* return true iff src route is valid */ |
| 200 | #define CLNPSRCRT_VALID(oidx)\ |
| 201 | ((oidx) && (oidx->cni_srcrt_s)) |
| 202 | |
| 203 | /* return the offset field of the src rt */ |
| 204 | #define CLNPSRCRT_OFF(oidx, options)\ |
| 205 | (*((u_char *)(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s) + 1))) |
| 206 | |
| 207 | /* return the type field of the src rt */ |
| 208 | #define CLNPSRCRT_TYPE(oidx, options)\ |
| 209 | ((u_char)(*(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s)))) |
| 210 | |
| 211 | /* return the length of the current address */ |
| 212 | #define CLNPSRCRT_CLEN(oidx, options)\ |
| 213 | ((u_char)(*(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s) + CLNPSRCRT_OFF(oidx, options) - 1))) |
| 214 | |
| 215 | /* return the address of the current address */ |
| 216 | #define CLNPSRCRT_CADDR(oidx, options)\ |
| 217 | ((caddr_t)(CLNP_OFFTOOPT(options, oidx->cni_srcrt_s) + CLNPSRCRT_OFF(oidx, options))) |
| 218 | |
| 219 | /* |
| 220 | * return true if the src route has run out of routes |
| 221 | * this is true if the offset of next route is greater than the end of the rt |
| 222 | */ |
| 223 | #define CLNPSRCRT_TERM(oidx, options)\ |
| 224 | (CLNPSRCRT_OFF(oidx, options) > oidx->cni_srcrt_len) |
| 225 | |
| 226 | /* |
| 227 | * Options a user can set/get |
| 228 | */ |
| 229 | #define CLNPOPT_FLAGS 0x01 /* flags: seg permitted, no er xmit, etc */ |
| 230 | #define CLNPOPT_OPTS 0x02 /* datagram options */ |
| 231 | |
| 232 | /* |
| 233 | * Values for particular datagram options |
| 234 | */ |
| 235 | #define CLNPOVAL_PAD 0xcc /* padding */ |
| 236 | #define CLNPOVAL_SECURE 0xc5 /* security */ |
| 237 | #define CLNPOVAL_SRCRT 0xc8 /* source routing */ |
| 238 | #define CLNPOVAL_RECRT 0xcb /* record route */ |
| 239 | #define CLNPOVAL_QOS 0xc3 /* quality of service */ |
| 240 | #define CLNPOVAL_PRIOR 0xcd /* priority */ |
| 241 | #define CLNPOVAL_ERREAS 0xc1 /* ER PDU ONLY: reason for discard */ |
| 242 | |
| 243 | #define CLNPOVAL_SRCSPEC 0x40 /* source address specific */ |
| 244 | #define CLNPOVAL_DSTSPEC 0x80 /* destination address specific */ |
| 245 | #define CLNPOVAL_GLOBAL 0xc0 /* globally unique */ |
| 246 | |
| 247 | /* Globally Unique QOS */ |
| 248 | #define CLNPOVAL_SEQUENCING 0x10 /* sequencing preferred */ |
| 249 | #define CLNPOVAL_CONGESTED 0x08 /* congestion experienced */ |
| 250 | #define CLNPOVAL_LOWDELAY 0x04 /* low transit delay */ |
| 251 | |
| 252 | #define CLNPOVAL_PARTRT 0x00 /* partial source routing */ |
| 253 | #define CLNPOVAL_COMPRT 0x01 /* complete source routing */ |
| 254 | |
| 255 | /* |
| 256 | * Clnp flags used in a control block flags field. |
| 257 | * NOTE: these must be out of the range of bits defined in ../net/raw_cb.h |
| 258 | */ |
| 259 | #define CLNP_NO_SEG 0x010 /* segmentation not permitted */ |
| 260 | #define CLNP_NO_ER 0x020 /* do not generate ERs */ |
| 261 | #define CLNP_SEND_RAW 0x080 /* send pkt as RAW DT rather than TP DT */ |
| 262 | #define CLNP_NO_CKSUM 0x100 /* don't use clnp checksum */ |
| 263 | #define CLNP_ECHO 0x200 /* fake echo function */ |
| 264 | #define CLNP_NOCACHE 0x400 /* don't store cache information */ |
| 265 | |
| 266 | /* valid clnp flags */ |
| 267 | #define CLNP_VFLAGS (CLNP_SEND_RAW|CLNP_NO_SEG|CLNP_NO_ER|CLNP_NO_CKSUM\ |
| 268 | |CLNP_ECHO|CLNP_NOCACHE) |
| 269 | |
| 270 | /* |
| 271 | * Constants used by clnp |
| 272 | */ |
| 273 | #define CLNP_HDR_MIN (sizeof (struct clnp_fixed)) |
| 274 | #define CLNP_HDR_MAX (254) |
| 275 | #define CLNP_TTL_UNITS 2 /* 500 milliseconds */ |
| 276 | #define CLNP_TTL 15*CLNP_TTL_UNITS /* time to live (seconds) */ |
| 277 | #define ISO8473_V1 0x01 |
| 278 | |
| 279 | /* |
| 280 | * Clnp packet types |
| 281 | * In order to test raw clnp and tp/clnp simultaneously, a third type of |
| 282 | * packet has been defined: CLNP_RAW. This is done so that the input |
| 283 | * routine can switch to the correct input routine (rclnp_input or |
| 284 | * tpclnp_input) based on the type field. If clnp had a higher level protocol |
| 285 | * field, this would not be necessary. |
| 286 | */ |
| 287 | #define CLNP_DT 0x1C /* normal data */ |
| 288 | #define CLNP_ER 0x01 /* error report */ |
| 289 | #define CLNP_RAW 0x1D /* debug only */ |
| 290 | #define CLNP_EC 0x1E /* echo packet */ |
| 291 | #define CLNP_ECR 0x1F /* echo reply */ |
| 292 | |
| 293 | /* |
| 294 | * ER pdu error codes |
| 295 | */ |
| 296 | #define GEN_NOREAS 0x00 /* reason not specified */ |
| 297 | #define GEN_PROTOERR 0x01 /* protocol procedure error */ |
| 298 | #define GEN_BADCSUM 0x02 /* incorrect checksum */ |
| 299 | #define GEN_CONGEST 0x03 /* pdu discarded due to congestion */ |
| 300 | #define GEN_HDRSYNTAX 0x04 /* header syntax error */ |
| 301 | #define GEN_SEGNEEDED 0x05 /* segmentation needed, but not permitted */ |
| 302 | #define GEN_INCOMPLETE 0x06 /* incomplete pdu received */ |
| 303 | #define GEN_DUPOPT 0x07 /* duplicate option */ |
| 304 | |
| 305 | /* address errors */ |
| 306 | #define ADDR_DESTUNREACH 0x80 /* destination address unreachable */ |
| 307 | #define ADDR_DESTUNKNOWN 0x81 /* destination address unknown */ |
| 308 | |
| 309 | /* source routing */ |
| 310 | #define SRCRT_UNSPECERR 0x90 /* unspecified src rt error */ |
| 311 | #define SRCRT_SYNTAX 0x91 /* syntax error in src rt field */ |
| 312 | #define SRCRT_UNKNOWNADDR 0x92 /* unknown addr in src rt field */ |
| 313 | #define SRCRT_BADPATH 0x93 /* path not acceptable */ |
| 314 | |
| 315 | /* lifetime */ |
| 316 | #define TTL_EXPTRANSIT 0xa0 /* lifetime expired during transit */ |
| 317 | #define TTL_EXPREASS 0xa1 /* lifetime expired during reassembly */ |
| 318 | |
| 319 | /* pdu discarded */ |
| 320 | #define DISC_UNSUPPOPT 0xb0 /* unsupported option not specified? */ |
| 321 | #define DISC_UNSUPPVERS 0xb1 /* unsupported protocol version */ |
| 322 | #define DISC_UNSUPPSECURE 0xb2 /* unsupported security option */ |
| 323 | #define DISC_UNSUPPSRCRT 0xb3 /* unsupported src rt option */ |
| 324 | #define DISC_UNSUPPRECRT 0xb4 /* unsupported rec rt option */ |
| 325 | |
| 326 | /* reassembly */ |
| 327 | #define REASS_INTERFERE 0xc0 /* reassembly interference */ |
| 328 | #define CLNP_ERRORS 22 |
| 329 | |
| 330 | |
| 331 | #ifdef KERNEL |
| 332 | int clnp_er_index(); |
| 333 | #endif |
| 334 | |
| 335 | #ifdef CLNP_ER_CODES |
| 336 | u_char clnp_er_codes[CLNP_ERRORS] = { |
| 337 | GEN_NOREAS, GEN_PROTOERR, GEN_BADCSUM, GEN_CONGEST, |
| 338 | GEN_HDRSYNTAX, GEN_SEGNEEDED, GEN_INCOMPLETE, GEN_DUPOPT, |
| 339 | ADDR_DESTUNREACH, ADDR_DESTUNKNOWN, |
| 340 | SRCRT_UNSPECERR, SRCRT_SYNTAX, SRCRT_UNKNOWNADDR, SRCRT_BADPATH, |
| 341 | TTL_EXPTRANSIT, TTL_EXPREASS, |
| 342 | DISC_UNSUPPOPT, DISC_UNSUPPVERS, DISC_UNSUPPSECURE, |
| 343 | DISC_UNSUPPSRCRT, DISC_UNSUPPRECRT, REASS_INTERFERE }; |
| 344 | #endif |
| 345 | |
| 346 | #ifdef TROLL |
| 347 | |
| 348 | #define TR_DUPEND 0x01 /* duplicate end of fragment */ |
| 349 | #define TR_DUPPKT 0x02 /* duplicate entire packet */ |
| 350 | #define TR_DROPPKT 0x04 /* drop packet on output */ |
| 351 | #define TR_TRIM 0x08 /* trim bytes from packet */ |
| 352 | #define TR_CHANGE 0x10 /* change bytes in packet */ |
| 353 | #define TR_MTU 0x20 /* delta to change device mtu */ |
| 354 | #define TR_CHUCK 0x40 /* drop packet in rclnp_input */ |
| 355 | #define TR_BLAST 0x80 /* force rclnp_output to blast many packet */ |
| 356 | #define TR_RAWLOOP 0x100 /* make if_loop call clnpintr directly */ |
| 357 | struct troll { |
| 358 | int tr_ops; /* operations to perform */ |
| 359 | float tr_dup_size; /* % to duplicate */ |
| 360 | float tr_dup_freq; /* frequency to duplicate packets */ |
| 361 | float tr_drop_freq; /* frequence to drop packets */ |
| 362 | int tr_mtu_adj; /* delta to adjust if mtu */ |
| 363 | int tr_blast_cnt; /* # of pkts to blast out */ |
| 364 | }; |
| 365 | |
| 366 | #define SN_OUTPUT(clcp, m)\ |
| 367 | troll_output(clcp->clc_ifa->ia_ifp, m, clcp->clc_firsthop, clcp->clc_rt) |
| 368 | |
| 369 | #define SN_MTU(ifp)\ |
| 370 | (ifp->if_mtu - trollctl.tr_mtu_adj) |
| 371 | |
| 372 | #ifdef KERNEL |
| 373 | extern float troll_random; |
| 374 | #endif |
| 375 | |
| 376 | #else /* NO TROLL */ |
| 377 | |
| 378 | #define SN_OUTPUT(clcp, m)\ |
| 379 | (*clcp->clc_ifa->ia_ifp->if_output)(clcp->clc_ifa->ia_ifp, m, clcp->clc_firsthop, clcp->clc_rt) |
| 380 | |
| 381 | #define SN_MTU(ifp)\ |
| 382 | (ifp->if_mtu) |
| 383 | |
| 384 | #endif TROLL |
| 385 | |
| 386 | /* |
| 387 | * Macro to remove an address from a clnp header |
| 388 | */ |
| 389 | #define CLNP_EXTRACT_ADDR(isoa, hoff, hend)\ |
| 390 | {\ |
| 391 | isoa.isoa_len = (u_char)*hoff;\ |
| 392 | if ((((++hoff) + isoa.isoa_len) > hend) ||\ |
| 393 | (isoa.isoa_len > 20) || (isoa.isoa_len == 0)) {\ |
| 394 | hoff = (caddr_t)0;\ |
| 395 | } else {\ |
| 396 | (void) bcopy(hoff, (caddr_t)isoa.isoa_genaddr, isoa.isoa_len);\ |
| 397 | hoff += isoa.isoa_len;\ |
| 398 | }\ |
| 399 | } |
| 400 | |
| 401 | /* |
| 402 | * Macro to insert an address into a clnp header |
| 403 | */ |
| 404 | #define CLNP_INSERT_ADDR(hoff, isoa)\ |
| 405 | *hoff++ = (isoa).isoa_len;\ |
| 406 | (void) bcopy((caddr_t)((isoa).isoa_genaddr), hoff, (isoa).isoa_len);\ |
| 407 | hoff += (isoa).isoa_len; |
| 408 | |
| 409 | /* |
| 410 | * Clnp hdr cache. Whenever a clnp packet is sent, a copy of the |
| 411 | * header is made and kept in this cache. In addition to a copy of |
| 412 | * the cached clnp hdr, the cache contains |
| 413 | * information necessary to determine whether the new packet |
| 414 | * to send requires a new header to be built. |
| 415 | */ |
| 416 | struct clnp_cache { |
| 417 | /* these fields are used to check the validity of the cache */ |
| 418 | struct iso_addr clc_dst; /* destination of packet */ |
| 419 | struct mbuf *clc_options; /* ptr to options mbuf */ |
| 420 | int clc_flags; /* flags passed to clnp_output */ |
| 421 | |
| 422 | /* these fields are state that clnp_output requires to finish the pkt */ |
| 423 | int clc_segoff; /* offset of seg part of header */ |
| 424 | struct sockaddr *clc_firsthop; /* first hop of packet (points into |
| 425 | the route structure) */ |
| 426 | struct iso_ifaddr *clc_ifa; /* ptr to interface (points into |
| 427 | the route structure) */ |
| 428 | struct rtentry *clc_rt; /* ptr to rtentry (points into |
| 429 | the route structure) */ |
| 430 | struct mbuf *clc_hdr; /* cached pkt hdr (finally)! */ |
| 431 | }; |
| 432 | |
| 433 | #ifndef satosiso |
| 434 | #define satosiso(sa)\ |
| 435 | ((struct sockaddr_iso *)(sa)) |
| 436 | #endif |
| 437 | |
| 438 | #ifdef KERNEL |
| 439 | caddr_t clnp_insert_addr(); |
| 440 | struct iso_addr *clnp_srcaddr(); |
| 441 | struct mbuf *clnp_reass(); |
| 442 | #ifdef TROLL |
| 443 | struct troll trollctl; |
| 444 | #endif TROLL |
| 445 | #endif KERNEL |