Annotation of src/sys/netinet/raw_ip.c, Revision 1.60
1.60 ! itojun 1: /* $NetBSD: raw_ip.c,v 1.59 2001/11/13 00:32:40 lukem Exp $ */
1.43 itojun 2:
3: /*
4: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. Neither the name of the project nor the names of its contributors
16: * may be used to endorse or promote products derived from this software
17: * without specific prior written permission.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
20: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22: * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
23: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29: * SUCH DAMAGE.
30: */
1.14 cgd 31:
1.1 cgd 32: /*
1.13 mycroft 33: * Copyright (c) 1982, 1986, 1988, 1993
34: * The Regents of the University of California. All rights reserved.
1.1 cgd 35: *
36: * Redistribution and use in source and binary forms, with or without
37: * modification, are permitted provided that the following conditions
38: * are met:
39: * 1. Redistributions of source code must retain the above copyright
40: * notice, this list of conditions and the following disclaimer.
41: * 2. Redistributions in binary form must reproduce the above copyright
42: * notice, this list of conditions and the following disclaimer in the
43: * documentation and/or other materials provided with the distribution.
44: * 3. All advertising materials mentioning features or use of this software
45: * must display the following acknowledgement:
46: * This product includes software developed by the University of
47: * California, Berkeley and its contributors.
48: * 4. Neither the name of the University nor the names of its contributors
49: * may be used to endorse or promote products derived from this software
50: * without specific prior written permission.
51: *
52: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62: * SUCH DAMAGE.
63: *
1.39 thorpej 64: * @(#)raw_ip.c 8.7 (Berkeley) 5/15/95
1.1 cgd 65: */
1.59 lukem 66:
67: #include <sys/cdefs.h>
1.60 ! itojun 68: __KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.59 2001/11/13 00:32:40 lukem Exp $");
1.40 scottr 69:
1.45 thorpej 70: #include "opt_ipsec.h"
1.40 scottr 71: #include "opt_mrouting.h"
1.1 cgd 72:
1.7 mycroft 73: #include <sys/param.h>
74: #include <sys/malloc.h>
75: #include <sys/mbuf.h>
76: #include <sys/socket.h>
77: #include <sys/protosw.h>
78: #include <sys/socketvar.h>
79: #include <sys/errno.h>
1.13 mycroft 80: #include <sys/systm.h>
1.26 mycroft 81: #include <sys/proc.h>
1.1 cgd 82:
1.7 mycroft 83: #include <net/if.h>
84: #include <net/route.h>
1.1 cgd 85:
1.7 mycroft 86: #include <netinet/in.h>
87: #include <netinet/in_systm.h>
88: #include <netinet/ip.h>
89: #include <netinet/ip_var.h>
1.13 mycroft 90: #include <netinet/ip_mroute.h>
1.44 darrenr 91: #include <netinet/ip_icmp.h>
1.7 mycroft 92: #include <netinet/in_pcb.h>
1.24 christos 93: #include <netinet/in_var.h>
94:
95: #include <machine/stdarg.h>
1.13 mycroft 96:
1.43 itojun 97: #ifdef IPSEC
98: #include <netinet6/ipsec.h>
99: #endif /*IPSEC*/
100:
1.20 mycroft 101: struct inpcbtable rawcbtable;
1.30 pk 102:
1.60 ! itojun 103: int rip_pcbnotify __P((struct inpcbtable *, struct in_addr,
! 104: struct in_addr, int, int, void (*) __P((struct inpcb *, int))));
1.30 pk 105: int rip_bind __P((struct inpcb *, struct mbuf *));
106: int rip_connect __P((struct inpcb *, struct mbuf *));
107: void rip_disconnect __P((struct inpcb *));
1.13 mycroft 108:
109: /*
110: * Nominal space allocated to a raw ip socket.
111: */
112: #define RIPSNDQ 8192
113: #define RIPRCVQ 8192
1.1 cgd 114:
115: /*
116: * Raw interface to IP protocol.
117: */
1.13 mycroft 118:
119: /*
120: * Initialize raw connection block q.
121: */
122: void
123: rip_init()
124: {
125:
1.33 mycroft 126: in_pcbinit(&rawcbtable, 1, 1);
1.13 mycroft 127: }
128:
1.43 itojun 129: static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET };
130:
1.1 cgd 131: /*
132: * Setup generic address and protocol structures
133: * for raw_input routine, then pass them along with
134: * mbuf chain.
135: */
1.9 mycroft 136: void
1.24 christos 137: #if __STDC__
138: rip_input(struct mbuf *m, ...)
139: #else
140: rip_input(m, va_alist)
1.1 cgd 141: struct mbuf *m;
1.24 christos 142: va_dcl
143: #endif
1.1 cgd 144: {
1.43 itojun 145: int off, proto;
1.53 augustss 146: struct ip *ip = mtod(m, struct ip *);
147: struct inpcb *inp;
1.36 thorpej 148: struct inpcb *last = 0;
149: struct mbuf *opts = 0;
1.32 mycroft 150: struct sockaddr_in ripsrc;
1.43 itojun 151: va_list ap;
152:
153: va_start(ap, m);
154: off = va_arg(ap, int);
155: proto = va_arg(ap, int);
156: va_end(ap);
1.1 cgd 157:
1.32 mycroft 158: ripsrc.sin_family = AF_INET;
159: ripsrc.sin_len = sizeof(struct sockaddr_in);
1.1 cgd 160: ripsrc.sin_addr = ip->ip_src;
1.34 mycroft 161: ripsrc.sin_port = 0;
162: bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero));
1.42 thorpej 163:
164: /*
165: * XXX Compatibility: programs using raw IP expect ip_len
166: * XXX to have the header length subtracted.
167: */
168: ip->ip_len -= ip->ip_hl << 2;
1.32 mycroft 169:
1.58 matt 170: CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) {
1.43 itojun 171: if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
1.13 mycroft 172: continue;
1.32 mycroft 173: if (!in_nullhost(inp->inp_laddr) &&
174: !in_hosteq(inp->inp_laddr, ip->ip_dst))
1.13 mycroft 175: continue;
1.32 mycroft 176: if (!in_nullhost(inp->inp_faddr) &&
177: !in_hosteq(inp->inp_faddr, ip->ip_src))
1.13 mycroft 178: continue;
179: if (last) {
180: struct mbuf *n;
1.55 itojun 181:
182: #ifdef IPSEC
183: /* check AH/ESP integrity. */
184: if (ipsec4_in_reject_so(m, last->inp_socket)) {
185: ipsecstat.in_polvio++;
186: /* do not inject data to pcb */
187: } else
188: #endif /*IPSEC*/
1.24 christos 189: if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) {
1.36 thorpej 190: if (last->inp_flags & INP_CONTROLOPTS ||
191: last->inp_socket->so_options & SO_TIMESTAMP)
192: ip_savecontrol(last, &opts, ip, n);
193: if (sbappendaddr(&last->inp_socket->so_rcv,
194: sintosa(&ripsrc), n, opts) == 0) {
1.13 mycroft 195: /* should notify about lost packet */
196: m_freem(n);
1.36 thorpej 197: if (opts)
198: m_freem(opts);
199: } else
200: sorwakeup(last->inp_socket);
1.41 thorpej 201: opts = NULL;
1.13 mycroft 202: }
203: }
1.36 thorpej 204: last = inp;
1.13 mycroft 205: }
1.55 itojun 206: #ifdef IPSEC
207: /* check AH/ESP integrity. */
208: if (last && ipsec4_in_reject_so(m, last->inp_socket)) {
209: m_freem(m);
210: ipsecstat.in_polvio++;
211: ipstat.ips_delivered--;
212: /* do not inject data to pcb */
213: } else
214: #endif /*IPSEC*/
1.13 mycroft 215: if (last) {
1.36 thorpej 216: if (last->inp_flags & INP_CONTROLOPTS ||
217: last->inp_socket->so_options & SO_TIMESTAMP)
218: ip_savecontrol(last, &opts, ip, m);
219: if (sbappendaddr(&last->inp_socket->so_rcv,
220: sintosa(&ripsrc), m, opts) == 0) {
1.13 mycroft 221: m_freem(m);
1.36 thorpej 222: if (opts)
223: m_freem(opts);
224: } else
225: sorwakeup(last->inp_socket);
1.13 mycroft 226: } else {
1.44 darrenr 227: if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) {
1.47 itojun 228: icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL,
229: 0, 0);
1.44 darrenr 230: ipstat.ips_noproto++;
231: ipstat.ips_delivered--;
232: } else
233: m_freem(m);
1.1 cgd 234: }
1.43 itojun 235: return;
1.60 ! itojun 236: }
! 237:
! 238: int
! 239: rip_pcbnotify(table, faddr, laddr, proto, errno, notify)
! 240: struct inpcbtable *table;
! 241: struct in_addr faddr, laddr;
! 242: int proto;
! 243: int errno;
! 244: void (*notify) __P((struct inpcb *, int));
! 245: {
! 246: struct inpcb *inp, *ninp;
! 247: int nmatch;
! 248:
! 249: nmatch = 0;
! 250: for (inp = CIRCLEQ_FIRST(&table->inpt_queue);
! 251: inp != (struct inpcb *)&table->inpt_queue;
! 252: inp = ninp) {
! 253: ninp = inp->inp_queue.cqe_next;
! 254: if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
! 255: continue;
! 256: if (in_hosteq(inp->inp_faddr, faddr) &&
! 257: in_hosteq(inp->inp_laddr, laddr)) {
! 258: (*notify)(inp, errno);
! 259: nmatch++;
! 260: }
! 261: }
! 262:
! 263: return nmatch;
! 264: }
! 265:
! 266: void *
! 267: rip_ctlinput(cmd, sa, v)
! 268: int cmd;
! 269: struct sockaddr *sa;
! 270: void *v;
! 271: {
! 272: struct ip *ip = v;
! 273: void (*notify) __P((struct inpcb *, int)) = in_rtchange;
! 274: int errno;
! 275:
! 276: if (sa->sa_family != AF_INET ||
! 277: sa->sa_len != sizeof(struct sockaddr_in))
! 278: return NULL;
! 279: if ((unsigned)cmd >= PRC_NCMDS)
! 280: return NULL;
! 281: errno = inetctlerrmap[cmd];
! 282: if (PRC_IS_REDIRECT(cmd))
! 283: notify = in_rtchange, ip = 0;
! 284: else if (cmd == PRC_HOSTDEAD)
! 285: ip = 0;
! 286: else if (errno == 0)
! 287: return NULL;
! 288: if (ip) {
! 289: rip_pcbnotify(&rawcbtable, satosin(sa)->sin_addr,
! 290: ip->ip_src, ip->ip_p, errno, notify);
! 291:
! 292: /* XXX mapped address case */
! 293: } else
! 294: in_pcbnotifyall(&rawcbtable, satosin(sa)->sin_addr, errno,
! 295: notify);
! 296: return NULL;
1.1 cgd 297: }
298:
299: /*
300: * Generate IP header and pass packet to ip_output.
301: * Tack on options user may have setup with control call.
302: */
1.9 mycroft 303: int
1.24 christos 304: #if __STDC__
305: rip_output(struct mbuf *m, ...)
306: #else
307: rip_output(m, va_alist)
308: struct mbuf *m;
309: va_dcl
310: #endif
311: {
1.53 augustss 312: struct inpcb *inp;
313: struct ip *ip;
1.10 mycroft 314: struct mbuf *opts;
1.24 christos 315: int flags;
316: va_list ap;
317:
318: va_start(ap, m);
1.27 mycroft 319: inp = va_arg(ap, struct inpcb *);
1.24 christos 320: va_end(ap);
321:
1.27 mycroft 322: flags =
1.37 matt 323: (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST
324: | IP_RETURNMTU;
1.1 cgd 325:
326: /*
327: * If the user handed us a complete IP packet, use it.
328: * Otherwise, allocate an mbuf for a header and fill it in.
329: */
1.13 mycroft 330: if ((inp->inp_flags & INP_HDRINCL) == 0) {
1.35 thorpej 331: if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) {
332: m_freem(m);
333: return (EMSGSIZE);
334: }
1.1 cgd 335: M_PREPEND(m, sizeof(struct ip), M_WAIT);
336: ip = mtod(m, struct ip *);
337: ip->ip_tos = 0;
338: ip->ip_off = 0;
1.13 mycroft 339: ip->ip_p = inp->inp_ip.ip_p;
1.1 cgd 340: ip->ip_len = m->m_pkthdr.len;
1.13 mycroft 341: ip->ip_src = inp->inp_laddr;
1.27 mycroft 342: ip->ip_dst = inp->inp_faddr;
1.1 cgd 343: ip->ip_ttl = MAXTTL;
1.13 mycroft 344: opts = inp->inp_options;
345: } else {
1.35 thorpej 346: if (m->m_pkthdr.len > IP_MAXPACKET) {
347: m_freem(m);
348: return (EMSGSIZE);
349: }
1.13 mycroft 350: ip = mtod(m, struct ip *);
1.38 mycroft 351: if (m->m_pkthdr.len != ip->ip_len) {
352: m_freem(m);
353: return (EINVAL);
354: }
1.13 mycroft 355: if (ip->ip_id == 0)
356: ip->ip_id = htons(ip_id++);
357: opts = NULL;
358: /* XXX prevent ip_output from overwriting header fields */
359: flags |= IP_RAWOUTPUT;
360: ipstat.ips_rawout++;
1.1 cgd 361: }
1.43 itojun 362: #ifdef IPSEC
1.54 itojun 363: if (ipsec_setsocket(m, inp->inp_socket) != 0) {
364: m_freem(m);
365: return ENOBUFS;
366: }
1.43 itojun 367: #endif /*IPSEC*/
1.37 matt 368: return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, &inp->inp_errormtu));
1.1 cgd 369: }
370:
371: /*
372: * Raw IP socket option processing.
373: */
1.9 mycroft 374: int
1.1 cgd 375: rip_ctloutput(op, so, level, optname, m)
376: int op;
377: struct socket *so;
378: int level, optname;
379: struct mbuf **m;
380: {
1.53 augustss 381: struct inpcb *inp = sotoinpcb(so);
1.31 mycroft 382: int error = 0;
1.1 cgd 383:
1.15 mycroft 384: if (level != IPPROTO_IP) {
1.31 mycroft 385: error = ENOPROTOOPT;
386: if (op == PRCO_SETOPT && *m != 0)
387: (void) m_free(*m);
388: } else switch (op) {
389:
390: case PRCO_SETOPT:
391: switch (optname) {
392: case IP_HDRINCL:
393: if (*m == 0 || (*m)->m_len < sizeof (int))
394: error = EINVAL;
395: else {
1.13 mycroft 396: if (*mtod(*m, int *))
397: inp->inp_flags |= INP_HDRINCL;
398: else
399: inp->inp_flags &= ~INP_HDRINCL;
400: }
1.31 mycroft 401: if (*m != 0)
402: (void) m_free(*m);
403: break;
404:
405: #ifdef MROUTING
406: case MRT_INIT:
407: case MRT_DONE:
408: case MRT_ADD_VIF:
409: case MRT_DEL_VIF:
410: case MRT_ADD_MFC:
411: case MRT_DEL_MFC:
412: case MRT_ASSERT:
413: error = ip_mrouter_set(so, optname, m);
414: break;
415: #endif
416:
417: default:
418: error = ip_ctloutput(op, so, level, optname, m);
419: break;
1.13 mycroft 420: }
421: break;
1.1 cgd 422:
1.31 mycroft 423: case PRCO_GETOPT:
424: switch (optname) {
425: case IP_HDRINCL:
426: *m = m_get(M_WAIT, M_SOOPTS);
427: (*m)->m_len = sizeof (int);
428: *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0;
429: break;
430:
1.6 hpeyerl 431: #ifdef MROUTING
1.31 mycroft 432: case MRT_VERSION:
433: case MRT_ASSERT:
434: error = ip_mrouter_get(so, optname, m);
1.18 mycroft 435: break;
1.31 mycroft 436: #endif
437:
1.18 mycroft 438: default:
1.31 mycroft 439: error = ip_ctloutput(op, so, level, optname, m);
1.18 mycroft 440: break;
441: }
1.31 mycroft 442: break;
1.1 cgd 443: }
1.31 mycroft 444: return (error);
1.1 cgd 445: }
446:
1.27 mycroft 447: int
1.29 mycroft 448: rip_bind(inp, nam)
449: struct inpcb *inp;
450: struct mbuf *nam;
451: {
452: struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
453:
454: if (nam->m_len != sizeof(*addr))
455: return (EINVAL);
1.58 matt 456: if (TAILQ_FIRST(&ifnet) == 0)
1.29 mycroft 457: return (EADDRNOTAVAIL);
458: if (addr->sin_family != AF_INET &&
459: addr->sin_family != AF_IMPLINK)
460: return (EAFNOSUPPORT);
1.32 mycroft 461: if (!in_nullhost(addr->sin_addr) &&
1.29 mycroft 462: ifa_ifwithaddr(sintosa(addr)) == 0)
463: return (EADDRNOTAVAIL);
464: inp->inp_laddr = addr->sin_addr;
465: return (0);
466: }
467:
468: int
1.27 mycroft 469: rip_connect(inp, nam)
470: struct inpcb *inp;
471: struct mbuf *nam;
472: {
473: struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
474:
475: if (nam->m_len != sizeof(*addr))
476: return (EINVAL);
1.58 matt 477: if (TAILQ_FIRST(&ifnet) == 0)
1.27 mycroft 478: return (EADDRNOTAVAIL);
479: if (addr->sin_family != AF_INET &&
480: addr->sin_family != AF_IMPLINK)
481: return (EAFNOSUPPORT);
482: inp->inp_faddr = addr->sin_addr;
483: return (0);
484: }
485:
486: void
487: rip_disconnect(inp)
488: struct inpcb *inp;
489: {
490:
1.32 mycroft 491: inp->inp_faddr = zeroin_addr;
1.27 mycroft 492: }
493:
1.13 mycroft 494: u_long rip_sendspace = RIPSNDQ;
495: u_long rip_recvspace = RIPRCVQ;
496:
1.1 cgd 497: /*ARGSUSED*/
1.9 mycroft 498: int
1.26 mycroft 499: rip_usrreq(so, req, m, nam, control, p)
1.53 augustss 500: struct socket *so;
1.1 cgd 501: int req;
1.2 cgd 502: struct mbuf *m, *nam, *control;
1.26 mycroft 503: struct proc *p;
1.1 cgd 504: {
1.53 augustss 505: struct inpcb *inp;
1.27 mycroft 506: int s;
1.53 augustss 507: int error = 0;
1.13 mycroft 508: #ifdef MROUTING
1.6 hpeyerl 509: extern struct socket *ip_mrouter;
510: #endif
1.27 mycroft 511:
1.22 pk 512: if (req == PRU_CONTROL)
513: return (in_control(so, (long)m, (caddr_t)nam,
1.26 mycroft 514: (struct ifnet *)control, p));
1.49 thorpej 515:
1.50 thorpej 516: if (req == PRU_PURGEIF) {
1.56 itojun 517: in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control);
1.50 thorpej 518: in_purgeif((struct ifnet *)control);
519: in_pcbpurgeif(&rawcbtable, (struct ifnet *)control);
1.49 thorpej 520: return (0);
521: }
1.22 pk 522:
1.27 mycroft 523: s = splsoftnet();
524: inp = sotoinpcb(so);
1.28 mycroft 525: #ifdef DIAGNOSTIC
526: if (req != PRU_SEND && req != PRU_SENDOOB && control)
527: panic("rip_usrreq: unexpected control mbuf");
528: #endif
1.27 mycroft 529: if (inp == 0 && req != PRU_ATTACH) {
1.22 pk 530: error = EINVAL;
531: goto release;
532: }
533:
1.1 cgd 534: switch (req) {
535:
536: case PRU_ATTACH:
1.27 mycroft 537: if (inp != 0) {
538: error = EISCONN;
539: break;
540: }
1.26 mycroft 541: if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) {
1.13 mycroft 542: error = EACCES;
543: break;
544: }
1.27 mycroft 545: if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
546: error = soreserve(so, rip_sendspace, rip_recvspace);
547: if (error)
548: break;
549: }
550: error = in_pcballoc(so, &rawcbtable);
551: if (error)
1.13 mycroft 552: break;
1.27 mycroft 553: inp = sotoinpcb(so);
1.17 cgd 554: inp->inp_ip.ip_p = (long)nam;
1.1 cgd 555: break;
556:
557: case PRU_DETACH:
1.13 mycroft 558: #ifdef MROUTING
1.6 hpeyerl 559: if (so == ip_mrouter)
560: ip_mrouter_done();
561: #endif
1.13 mycroft 562: in_pcbdetach(inp);
1.1 cgd 563: break;
564:
565: case PRU_BIND:
1.29 mycroft 566: error = rip_bind(inp, nam);
1.27 mycroft 567: break;
568:
569: case PRU_LISTEN:
570: error = EOPNOTSUPP;
571: break;
572:
573: case PRU_CONNECT:
574: error = rip_connect(inp, nam);
575: if (error)
1.13 mycroft 576: break;
1.1 cgd 577: soisconnected(so);
1.13 mycroft 578: break;
579:
580: case PRU_CONNECT2:
581: error = EOPNOTSUPP;
582: break;
583:
1.27 mycroft 584: case PRU_DISCONNECT:
585: soisdisconnected(so);
586: rip_disconnect(inp);
587: break;
588:
1.13 mycroft 589: /*
590: * Mark the connection as being incapable of further input.
591: */
592: case PRU_SHUTDOWN:
593: socantsendmore(so);
594: break;
595:
1.27 mycroft 596: case PRU_RCVD:
597: error = EOPNOTSUPP;
598: break;
599:
1.13 mycroft 600: /*
601: * Ship a packet out. The appropriate raw output
602: * routine handles any massaging necessary.
603: */
604: case PRU_SEND:
1.28 mycroft 605: if (control && control->m_len) {
606: m_freem(control);
607: m_freem(m);
608: error = EINVAL;
609: break;
610: }
611: {
1.27 mycroft 612: if (nam) {
613: if ((so->so_state & SS_ISCONNECTED) != 0) {
1.13 mycroft 614: error = EISCONN;
1.28 mycroft 615: goto die;
1.13 mycroft 616: }
1.27 mycroft 617: error = rip_connect(inp, nam);
618: if (error) {
1.28 mycroft 619: die:
1.27 mycroft 620: m_freem(m);
621: break;
622: }
1.13 mycroft 623: } else {
1.27 mycroft 624: if ((so->so_state & SS_ISCONNECTED) == 0) {
1.13 mycroft 625: error = ENOTCONN;
1.28 mycroft 626: goto die;
1.13 mycroft 627: }
628: }
1.27 mycroft 629: error = rip_output(m, inp);
630: if (nam)
631: rip_disconnect(inp);
1.28 mycroft 632: }
1.13 mycroft 633: break;
634:
635: case PRU_SENSE:
636: /*
637: * stat: don't bother with a blocksize.
638: */
1.27 mycroft 639: splx(s);
1.1 cgd 640: return (0);
1.13 mycroft 641:
642: case PRU_RCVOOB:
1.27 mycroft 643: error = EOPNOTSUPP;
644: break;
645:
1.13 mycroft 646: case PRU_SENDOOB:
1.28 mycroft 647: m_freem(control);
1.27 mycroft 648: m_freem(m);
1.13 mycroft 649: error = EOPNOTSUPP;
650: break;
651:
652: case PRU_SOCKADDR:
653: in_setsockaddr(inp, nam);
654: break;
655:
656: case PRU_PEERADDR:
657: in_setpeeraddr(inp, nam);
658: break;
659:
660: default:
661: panic("rip_usrreq");
1.1 cgd 662: }
1.27 mycroft 663:
1.22 pk 664: release:
1.27 mycroft 665: splx(s);
1.1 cgd 666: return (error);
667: }
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