Annotation of src/sys/netinet/raw_ip.c, Revision 1.63
1.63 ! simonb 1: /* $NetBSD: raw_ip.c,v 1.62 2002/08/14 00:23:33 itojun Exp $ */
1.43 itojun 2:
3: /*
4: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5: * All rights reserved.
1.61 itojun 6: *
1.43 itojun 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.
1.61 itojun 18: *
1.43 itojun 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>
1.63 ! simonb 68: __KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.62 2002/08/14 00:23:33 itojun 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:
1.1 cgd 129: /*
130: * Setup generic address and protocol structures
131: * for raw_input routine, then pass them along with
132: * mbuf chain.
133: */
1.9 mycroft 134: void
1.24 christos 135: #if __STDC__
136: rip_input(struct mbuf *m, ...)
137: #else
138: rip_input(m, va_alist)
1.1 cgd 139: struct mbuf *m;
1.24 christos 140: va_dcl
141: #endif
1.1 cgd 142: {
1.63 ! simonb 143: int proto;
1.53 augustss 144: struct ip *ip = mtod(m, struct ip *);
145: struct inpcb *inp;
1.36 thorpej 146: struct inpcb *last = 0;
147: struct mbuf *opts = 0;
1.32 mycroft 148: struct sockaddr_in ripsrc;
1.43 itojun 149: va_list ap;
150:
151: va_start(ap, m);
152: proto = va_arg(ap, int);
153: va_end(ap);
1.1 cgd 154:
1.32 mycroft 155: ripsrc.sin_family = AF_INET;
156: ripsrc.sin_len = sizeof(struct sockaddr_in);
1.1 cgd 157: ripsrc.sin_addr = ip->ip_src;
1.34 mycroft 158: ripsrc.sin_port = 0;
159: bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero));
1.42 thorpej 160:
161: /*
162: * XXX Compatibility: programs using raw IP expect ip_len
1.62 itojun 163: * XXX to have the header length subtracted, and in host order.
164: * XXX ip_off is also expected to be host order.
1.42 thorpej 165: */
1.62 itojun 166: ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2);
167: NTOHS(ip->ip_off);
1.32 mycroft 168:
1.58 matt 169: CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) {
1.43 itojun 170: if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
1.13 mycroft 171: continue;
1.32 mycroft 172: if (!in_nullhost(inp->inp_laddr) &&
173: !in_hosteq(inp->inp_laddr, ip->ip_dst))
1.13 mycroft 174: continue;
1.32 mycroft 175: if (!in_nullhost(inp->inp_faddr) &&
176: !in_hosteq(inp->inp_faddr, ip->ip_src))
1.13 mycroft 177: continue;
178: if (last) {
179: struct mbuf *n;
1.55 itojun 180:
181: #ifdef IPSEC
182: /* check AH/ESP integrity. */
183: if (ipsec4_in_reject_so(m, last->inp_socket)) {
184: ipsecstat.in_polvio++;
185: /* do not inject data to pcb */
186: } else
187: #endif /*IPSEC*/
1.24 christos 188: if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) {
1.36 thorpej 189: if (last->inp_flags & INP_CONTROLOPTS ||
190: last->inp_socket->so_options & SO_TIMESTAMP)
191: ip_savecontrol(last, &opts, ip, n);
192: if (sbappendaddr(&last->inp_socket->so_rcv,
193: sintosa(&ripsrc), n, opts) == 0) {
1.13 mycroft 194: /* should notify about lost packet */
195: m_freem(n);
1.36 thorpej 196: if (opts)
197: m_freem(opts);
198: } else
199: sorwakeup(last->inp_socket);
1.41 thorpej 200: opts = NULL;
1.13 mycroft 201: }
202: }
1.36 thorpej 203: last = inp;
1.13 mycroft 204: }
1.55 itojun 205: #ifdef IPSEC
206: /* check AH/ESP integrity. */
207: if (last && ipsec4_in_reject_so(m, last->inp_socket)) {
208: m_freem(m);
209: ipsecstat.in_polvio++;
210: ipstat.ips_delivered--;
211: /* do not inject data to pcb */
212: } else
213: #endif /*IPSEC*/
1.13 mycroft 214: if (last) {
1.36 thorpej 215: if (last->inp_flags & INP_CONTROLOPTS ||
216: last->inp_socket->so_options & SO_TIMESTAMP)
217: ip_savecontrol(last, &opts, ip, m);
218: if (sbappendaddr(&last->inp_socket->so_rcv,
219: sintosa(&ripsrc), m, opts) == 0) {
1.13 mycroft 220: m_freem(m);
1.36 thorpej 221: if (opts)
222: m_freem(opts);
223: } else
224: sorwakeup(last->inp_socket);
1.13 mycroft 225: } else {
1.44 darrenr 226: if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) {
1.47 itojun 227: icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL,
228: 0, 0);
1.44 darrenr 229: ipstat.ips_noproto++;
230: ipstat.ips_delivered--;
231: } else
232: m_freem(m);
1.1 cgd 233: }
1.43 itojun 234: return;
1.60 itojun 235: }
236:
237: int
238: rip_pcbnotify(table, faddr, laddr, proto, errno, notify)
239: struct inpcbtable *table;
240: struct in_addr faddr, laddr;
241: int proto;
242: int errno;
243: void (*notify) __P((struct inpcb *, int));
244: {
245: struct inpcb *inp, *ninp;
246: int nmatch;
247:
248: nmatch = 0;
249: for (inp = CIRCLEQ_FIRST(&table->inpt_queue);
250: inp != (struct inpcb *)&table->inpt_queue;
251: inp = ninp) {
252: ninp = inp->inp_queue.cqe_next;
253: if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
254: continue;
255: if (in_hosteq(inp->inp_faddr, faddr) &&
256: in_hosteq(inp->inp_laddr, laddr)) {
257: (*notify)(inp, errno);
258: nmatch++;
259: }
260: }
261:
262: return nmatch;
263: }
264:
265: void *
266: rip_ctlinput(cmd, sa, v)
267: int cmd;
268: struct sockaddr *sa;
269: void *v;
270: {
271: struct ip *ip = v;
272: void (*notify) __P((struct inpcb *, int)) = in_rtchange;
273: int errno;
274:
275: if (sa->sa_family != AF_INET ||
276: sa->sa_len != sizeof(struct sockaddr_in))
277: return NULL;
278: if ((unsigned)cmd >= PRC_NCMDS)
279: return NULL;
280: errno = inetctlerrmap[cmd];
281: if (PRC_IS_REDIRECT(cmd))
282: notify = in_rtchange, ip = 0;
283: else if (cmd == PRC_HOSTDEAD)
284: ip = 0;
285: else if (errno == 0)
286: return NULL;
287: if (ip) {
288: rip_pcbnotify(&rawcbtable, satosin(sa)->sin_addr,
289: ip->ip_src, ip->ip_p, errno, notify);
290:
291: /* XXX mapped address case */
292: } else
293: in_pcbnotifyall(&rawcbtable, satosin(sa)->sin_addr, errno,
294: notify);
295: return NULL;
1.1 cgd 296: }
297:
298: /*
299: * Generate IP header and pass packet to ip_output.
300: * Tack on options user may have setup with control call.
301: */
1.9 mycroft 302: int
1.24 christos 303: #if __STDC__
304: rip_output(struct mbuf *m, ...)
305: #else
306: rip_output(m, va_alist)
307: struct mbuf *m;
308: va_dcl
309: #endif
310: {
1.53 augustss 311: struct inpcb *inp;
312: struct ip *ip;
1.10 mycroft 313: struct mbuf *opts;
1.24 christos 314: int flags;
315: va_list ap;
316:
317: va_start(ap, m);
1.27 mycroft 318: inp = va_arg(ap, struct inpcb *);
1.24 christos 319: va_end(ap);
320:
1.27 mycroft 321: flags =
1.37 matt 322: (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST
323: | IP_RETURNMTU;
1.1 cgd 324:
325: /*
326: * If the user handed us a complete IP packet, use it.
327: * Otherwise, allocate an mbuf for a header and fill it in.
328: */
1.13 mycroft 329: if ((inp->inp_flags & INP_HDRINCL) == 0) {
1.35 thorpej 330: if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) {
331: m_freem(m);
332: return (EMSGSIZE);
333: }
1.1 cgd 334: M_PREPEND(m, sizeof(struct ip), M_WAIT);
335: ip = mtod(m, struct ip *);
336: ip->ip_tos = 0;
1.62 itojun 337: ip->ip_off = htons(0);
1.13 mycroft 338: ip->ip_p = inp->inp_ip.ip_p;
1.62 itojun 339: ip->ip_len = htons(m->m_pkthdr.len);
1.13 mycroft 340: ip->ip_src = inp->inp_laddr;
1.27 mycroft 341: ip->ip_dst = inp->inp_faddr;
1.1 cgd 342: ip->ip_ttl = MAXTTL;
1.13 mycroft 343: opts = inp->inp_options;
344: } else {
1.35 thorpej 345: if (m->m_pkthdr.len > IP_MAXPACKET) {
346: m_freem(m);
347: return (EMSGSIZE);
348: }
1.13 mycroft 349: ip = mtod(m, struct ip *);
1.62 itojun 350: /* XXX userland passes ip_len and ip_off in host order */
1.38 mycroft 351: if (m->m_pkthdr.len != ip->ip_len) {
352: m_freem(m);
353: return (EINVAL);
354: }
1.62 itojun 355: HTONS(ip->ip_len);
356: HTONS(ip->ip_off);
1.13 mycroft 357: if (ip->ip_id == 0)
358: ip->ip_id = htons(ip_id++);
359: opts = NULL;
360: /* XXX prevent ip_output from overwriting header fields */
361: flags |= IP_RAWOUTPUT;
362: ipstat.ips_rawout++;
1.1 cgd 363: }
1.43 itojun 364: #ifdef IPSEC
1.54 itojun 365: if (ipsec_setsocket(m, inp->inp_socket) != 0) {
366: m_freem(m);
367: return ENOBUFS;
368: }
1.43 itojun 369: #endif /*IPSEC*/
1.62 itojun 370: return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions,
371: &inp->inp_errormtu));
1.1 cgd 372: }
373:
374: /*
375: * Raw IP socket option processing.
376: */
1.9 mycroft 377: int
1.1 cgd 378: rip_ctloutput(op, so, level, optname, m)
379: int op;
380: struct socket *so;
381: int level, optname;
382: struct mbuf **m;
383: {
1.53 augustss 384: struct inpcb *inp = sotoinpcb(so);
1.31 mycroft 385: int error = 0;
1.1 cgd 386:
1.15 mycroft 387: if (level != IPPROTO_IP) {
1.31 mycroft 388: error = ENOPROTOOPT;
389: if (op == PRCO_SETOPT && *m != 0)
390: (void) m_free(*m);
391: } else switch (op) {
392:
393: case PRCO_SETOPT:
394: switch (optname) {
395: case IP_HDRINCL:
396: if (*m == 0 || (*m)->m_len < sizeof (int))
397: error = EINVAL;
398: else {
1.13 mycroft 399: if (*mtod(*m, int *))
400: inp->inp_flags |= INP_HDRINCL;
401: else
402: inp->inp_flags &= ~INP_HDRINCL;
403: }
1.31 mycroft 404: if (*m != 0)
405: (void) m_free(*m);
406: break;
407:
408: #ifdef MROUTING
409: case MRT_INIT:
410: case MRT_DONE:
411: case MRT_ADD_VIF:
412: case MRT_DEL_VIF:
413: case MRT_ADD_MFC:
414: case MRT_DEL_MFC:
415: case MRT_ASSERT:
416: error = ip_mrouter_set(so, optname, m);
417: break;
418: #endif
419:
420: default:
421: error = ip_ctloutput(op, so, level, optname, m);
422: break;
1.13 mycroft 423: }
424: break;
1.1 cgd 425:
1.31 mycroft 426: case PRCO_GETOPT:
427: switch (optname) {
428: case IP_HDRINCL:
429: *m = m_get(M_WAIT, M_SOOPTS);
430: (*m)->m_len = sizeof (int);
431: *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0;
432: break;
433:
1.6 hpeyerl 434: #ifdef MROUTING
1.31 mycroft 435: case MRT_VERSION:
436: case MRT_ASSERT:
437: error = ip_mrouter_get(so, optname, m);
1.18 mycroft 438: break;
1.31 mycroft 439: #endif
440:
1.18 mycroft 441: default:
1.31 mycroft 442: error = ip_ctloutput(op, so, level, optname, m);
1.18 mycroft 443: break;
444: }
1.31 mycroft 445: break;
1.1 cgd 446: }
1.31 mycroft 447: return (error);
1.1 cgd 448: }
449:
1.27 mycroft 450: int
1.29 mycroft 451: rip_bind(inp, nam)
452: struct inpcb *inp;
453: struct mbuf *nam;
454: {
455: struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
456:
457: if (nam->m_len != sizeof(*addr))
458: return (EINVAL);
1.58 matt 459: if (TAILQ_FIRST(&ifnet) == 0)
1.29 mycroft 460: return (EADDRNOTAVAIL);
461: if (addr->sin_family != AF_INET &&
462: addr->sin_family != AF_IMPLINK)
463: return (EAFNOSUPPORT);
1.32 mycroft 464: if (!in_nullhost(addr->sin_addr) &&
1.29 mycroft 465: ifa_ifwithaddr(sintosa(addr)) == 0)
466: return (EADDRNOTAVAIL);
467: inp->inp_laddr = addr->sin_addr;
468: return (0);
469: }
470:
471: int
1.27 mycroft 472: rip_connect(inp, nam)
473: struct inpcb *inp;
474: struct mbuf *nam;
475: {
476: struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
477:
478: if (nam->m_len != sizeof(*addr))
479: return (EINVAL);
1.58 matt 480: if (TAILQ_FIRST(&ifnet) == 0)
1.27 mycroft 481: return (EADDRNOTAVAIL);
482: if (addr->sin_family != AF_INET &&
483: addr->sin_family != AF_IMPLINK)
484: return (EAFNOSUPPORT);
485: inp->inp_faddr = addr->sin_addr;
486: return (0);
487: }
488:
489: void
490: rip_disconnect(inp)
491: struct inpcb *inp;
492: {
493:
1.32 mycroft 494: inp->inp_faddr = zeroin_addr;
1.27 mycroft 495: }
496:
1.13 mycroft 497: u_long rip_sendspace = RIPSNDQ;
498: u_long rip_recvspace = RIPRCVQ;
499:
1.1 cgd 500: /*ARGSUSED*/
1.9 mycroft 501: int
1.26 mycroft 502: rip_usrreq(so, req, m, nam, control, p)
1.53 augustss 503: struct socket *so;
1.1 cgd 504: int req;
1.2 cgd 505: struct mbuf *m, *nam, *control;
1.26 mycroft 506: struct proc *p;
1.1 cgd 507: {
1.53 augustss 508: struct inpcb *inp;
1.27 mycroft 509: int s;
1.53 augustss 510: int error = 0;
1.13 mycroft 511: #ifdef MROUTING
1.6 hpeyerl 512: extern struct socket *ip_mrouter;
513: #endif
1.27 mycroft 514:
1.22 pk 515: if (req == PRU_CONTROL)
516: return (in_control(so, (long)m, (caddr_t)nam,
1.26 mycroft 517: (struct ifnet *)control, p));
1.49 thorpej 518:
1.50 thorpej 519: if (req == PRU_PURGEIF) {
1.56 itojun 520: in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control);
1.50 thorpej 521: in_purgeif((struct ifnet *)control);
522: in_pcbpurgeif(&rawcbtable, (struct ifnet *)control);
1.49 thorpej 523: return (0);
524: }
1.22 pk 525:
1.27 mycroft 526: s = splsoftnet();
527: inp = sotoinpcb(so);
1.28 mycroft 528: #ifdef DIAGNOSTIC
529: if (req != PRU_SEND && req != PRU_SENDOOB && control)
530: panic("rip_usrreq: unexpected control mbuf");
531: #endif
1.27 mycroft 532: if (inp == 0 && req != PRU_ATTACH) {
1.22 pk 533: error = EINVAL;
534: goto release;
535: }
536:
1.1 cgd 537: switch (req) {
538:
539: case PRU_ATTACH:
1.27 mycroft 540: if (inp != 0) {
541: error = EISCONN;
542: break;
543: }
1.26 mycroft 544: if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) {
1.13 mycroft 545: error = EACCES;
546: break;
547: }
1.27 mycroft 548: if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
549: error = soreserve(so, rip_sendspace, rip_recvspace);
550: if (error)
551: break;
552: }
553: error = in_pcballoc(so, &rawcbtable);
554: if (error)
1.13 mycroft 555: break;
1.27 mycroft 556: inp = sotoinpcb(so);
1.17 cgd 557: inp->inp_ip.ip_p = (long)nam;
1.1 cgd 558: break;
559:
560: case PRU_DETACH:
1.13 mycroft 561: #ifdef MROUTING
1.6 hpeyerl 562: if (so == ip_mrouter)
563: ip_mrouter_done();
564: #endif
1.13 mycroft 565: in_pcbdetach(inp);
1.1 cgd 566: break;
567:
568: case PRU_BIND:
1.29 mycroft 569: error = rip_bind(inp, nam);
1.27 mycroft 570: break;
571:
572: case PRU_LISTEN:
573: error = EOPNOTSUPP;
574: break;
575:
576: case PRU_CONNECT:
577: error = rip_connect(inp, nam);
578: if (error)
1.13 mycroft 579: break;
1.1 cgd 580: soisconnected(so);
1.13 mycroft 581: break;
582:
583: case PRU_CONNECT2:
584: error = EOPNOTSUPP;
585: break;
586:
1.27 mycroft 587: case PRU_DISCONNECT:
588: soisdisconnected(so);
589: rip_disconnect(inp);
590: break;
591:
1.13 mycroft 592: /*
593: * Mark the connection as being incapable of further input.
594: */
595: case PRU_SHUTDOWN:
596: socantsendmore(so);
597: break;
598:
1.27 mycroft 599: case PRU_RCVD:
600: error = EOPNOTSUPP;
601: break;
602:
1.13 mycroft 603: /*
604: * Ship a packet out. The appropriate raw output
605: * routine handles any massaging necessary.
606: */
607: case PRU_SEND:
1.28 mycroft 608: if (control && control->m_len) {
609: m_freem(control);
610: m_freem(m);
611: error = EINVAL;
612: break;
613: }
614: {
1.27 mycroft 615: if (nam) {
616: if ((so->so_state & SS_ISCONNECTED) != 0) {
1.13 mycroft 617: error = EISCONN;
1.28 mycroft 618: goto die;
1.13 mycroft 619: }
1.27 mycroft 620: error = rip_connect(inp, nam);
621: if (error) {
1.28 mycroft 622: die:
1.27 mycroft 623: m_freem(m);
624: break;
625: }
1.13 mycroft 626: } else {
1.27 mycroft 627: if ((so->so_state & SS_ISCONNECTED) == 0) {
1.13 mycroft 628: error = ENOTCONN;
1.28 mycroft 629: goto die;
1.13 mycroft 630: }
631: }
1.27 mycroft 632: error = rip_output(m, inp);
633: if (nam)
634: rip_disconnect(inp);
1.28 mycroft 635: }
1.13 mycroft 636: break;
637:
638: case PRU_SENSE:
639: /*
640: * stat: don't bother with a blocksize.
641: */
1.27 mycroft 642: splx(s);
1.1 cgd 643: return (0);
1.13 mycroft 644:
645: case PRU_RCVOOB:
1.27 mycroft 646: error = EOPNOTSUPP;
647: break;
648:
1.13 mycroft 649: case PRU_SENDOOB:
1.28 mycroft 650: m_freem(control);
1.27 mycroft 651: m_freem(m);
1.13 mycroft 652: error = EOPNOTSUPP;
653: break;
654:
655: case PRU_SOCKADDR:
656: in_setsockaddr(inp, nam);
657: break;
658:
659: case PRU_PEERADDR:
660: in_setpeeraddr(inp, nam);
661: break;
662:
663: default:
664: panic("rip_usrreq");
1.1 cgd 665: }
1.27 mycroft 666:
1.22 pk 667: release:
1.27 mycroft 668: splx(s);
1.1 cgd 669: return (error);
670: }
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