Annotation of src/sys/netinet/raw_ip.c, Revision 1.55.2.5
1.55.2.5! nathanw 1: /* $NetBSD$ */
1.43 itojun 2:
3: /*
4: * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5: * All rights reserved.
1.55.2.4 nathanw 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.
1.55.2.4 nathanw 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: */
1.40 scottr 66:
1.55.2.2 nathanw 67: #include <sys/cdefs.h>
1.55.2.5! nathanw 68: __KERNEL_RCSID(0, "$NetBSD$");
1.55.2.2 nathanw 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:
1.55.2.3 nathanw 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
1.55.2.5! nathanw 166: * XXX to have the header length subtracted, and in host order.
! 167: * XXX ip_off is also expected to be host order.
1.42 thorpej 168: */
1.55.2.5! nathanw 169: ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2);
! 170: NTOHS(ip->ip_off);
1.32 mycroft 171:
1.55.2.2 nathanw 172: CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) {
1.43 itojun 173: if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
1.13 mycroft 174: continue;
1.32 mycroft 175: if (!in_nullhost(inp->inp_laddr) &&
176: !in_hosteq(inp->inp_laddr, ip->ip_dst))
1.13 mycroft 177: continue;
1.32 mycroft 178: if (!in_nullhost(inp->inp_faddr) &&
179: !in_hosteq(inp->inp_faddr, ip->ip_src))
1.13 mycroft 180: continue;
181: if (last) {
182: struct mbuf *n;
1.55 itojun 183:
184: #ifdef IPSEC
185: /* check AH/ESP integrity. */
186: if (ipsec4_in_reject_so(m, last->inp_socket)) {
187: ipsecstat.in_polvio++;
188: /* do not inject data to pcb */
189: } else
190: #endif /*IPSEC*/
1.24 christos 191: if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) {
1.36 thorpej 192: if (last->inp_flags & INP_CONTROLOPTS ||
193: last->inp_socket->so_options & SO_TIMESTAMP)
194: ip_savecontrol(last, &opts, ip, n);
195: if (sbappendaddr(&last->inp_socket->so_rcv,
196: sintosa(&ripsrc), n, opts) == 0) {
1.13 mycroft 197: /* should notify about lost packet */
198: m_freem(n);
1.36 thorpej 199: if (opts)
200: m_freem(opts);
201: } else
202: sorwakeup(last->inp_socket);
1.41 thorpej 203: opts = NULL;
1.13 mycroft 204: }
205: }
1.36 thorpej 206: last = inp;
1.13 mycroft 207: }
1.55 itojun 208: #ifdef IPSEC
209: /* check AH/ESP integrity. */
210: if (last && ipsec4_in_reject_so(m, last->inp_socket)) {
211: m_freem(m);
212: ipsecstat.in_polvio++;
213: ipstat.ips_delivered--;
214: /* do not inject data to pcb */
215: } else
216: #endif /*IPSEC*/
1.13 mycroft 217: if (last) {
1.36 thorpej 218: if (last->inp_flags & INP_CONTROLOPTS ||
219: last->inp_socket->so_options & SO_TIMESTAMP)
220: ip_savecontrol(last, &opts, ip, m);
221: if (sbappendaddr(&last->inp_socket->so_rcv,
222: sintosa(&ripsrc), m, opts) == 0) {
1.13 mycroft 223: m_freem(m);
1.36 thorpej 224: if (opts)
225: m_freem(opts);
226: } else
227: sorwakeup(last->inp_socket);
1.13 mycroft 228: } else {
1.44 darrenr 229: if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) {
1.47 itojun 230: icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL,
231: 0, 0);
1.44 darrenr 232: ipstat.ips_noproto++;
233: ipstat.ips_delivered--;
234: } else
235: m_freem(m);
1.1 cgd 236: }
1.43 itojun 237: return;
1.55.2.3 nathanw 238: }
239:
240: int
241: rip_pcbnotify(table, faddr, laddr, proto, errno, notify)
242: struct inpcbtable *table;
243: struct in_addr faddr, laddr;
244: int proto;
245: int errno;
246: void (*notify) __P((struct inpcb *, int));
247: {
248: struct inpcb *inp, *ninp;
249: int nmatch;
250:
251: nmatch = 0;
252: for (inp = CIRCLEQ_FIRST(&table->inpt_queue);
253: inp != (struct inpcb *)&table->inpt_queue;
254: inp = ninp) {
255: ninp = inp->inp_queue.cqe_next;
256: if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
257: continue;
258: if (in_hosteq(inp->inp_faddr, faddr) &&
259: in_hosteq(inp->inp_laddr, laddr)) {
260: (*notify)(inp, errno);
261: nmatch++;
262: }
263: }
264:
265: return nmatch;
266: }
267:
268: void *
269: rip_ctlinput(cmd, sa, v)
270: int cmd;
271: struct sockaddr *sa;
272: void *v;
273: {
274: struct ip *ip = v;
275: void (*notify) __P((struct inpcb *, int)) = in_rtchange;
276: int errno;
277:
278: if (sa->sa_family != AF_INET ||
279: sa->sa_len != sizeof(struct sockaddr_in))
280: return NULL;
281: if ((unsigned)cmd >= PRC_NCMDS)
282: return NULL;
283: errno = inetctlerrmap[cmd];
284: if (PRC_IS_REDIRECT(cmd))
285: notify = in_rtchange, ip = 0;
286: else if (cmd == PRC_HOSTDEAD)
287: ip = 0;
288: else if (errno == 0)
289: return NULL;
290: if (ip) {
291: rip_pcbnotify(&rawcbtable, satosin(sa)->sin_addr,
292: ip->ip_src, ip->ip_p, errno, notify);
293:
294: /* XXX mapped address case */
295: } else
296: in_pcbnotifyall(&rawcbtable, satosin(sa)->sin_addr, errno,
297: notify);
298: return NULL;
1.1 cgd 299: }
300:
301: /*
302: * Generate IP header and pass packet to ip_output.
303: * Tack on options user may have setup with control call.
304: */
1.9 mycroft 305: int
1.24 christos 306: #if __STDC__
307: rip_output(struct mbuf *m, ...)
308: #else
309: rip_output(m, va_alist)
310: struct mbuf *m;
311: va_dcl
312: #endif
313: {
1.53 augustss 314: struct inpcb *inp;
315: struct ip *ip;
1.10 mycroft 316: struct mbuf *opts;
1.24 christos 317: int flags;
318: va_list ap;
319:
320: va_start(ap, m);
1.27 mycroft 321: inp = va_arg(ap, struct inpcb *);
1.24 christos 322: va_end(ap);
323:
1.27 mycroft 324: flags =
1.37 matt 325: (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST
326: | IP_RETURNMTU;
1.1 cgd 327:
328: /*
329: * If the user handed us a complete IP packet, use it.
330: * Otherwise, allocate an mbuf for a header and fill it in.
331: */
1.13 mycroft 332: if ((inp->inp_flags & INP_HDRINCL) == 0) {
1.35 thorpej 333: if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) {
334: m_freem(m);
335: return (EMSGSIZE);
336: }
1.1 cgd 337: M_PREPEND(m, sizeof(struct ip), M_WAIT);
338: ip = mtod(m, struct ip *);
339: ip->ip_tos = 0;
1.55.2.5! nathanw 340: ip->ip_off = htons(0);
1.13 mycroft 341: ip->ip_p = inp->inp_ip.ip_p;
1.55.2.5! nathanw 342: ip->ip_len = htons(m->m_pkthdr.len);
1.13 mycroft 343: ip->ip_src = inp->inp_laddr;
1.27 mycroft 344: ip->ip_dst = inp->inp_faddr;
1.1 cgd 345: ip->ip_ttl = MAXTTL;
1.13 mycroft 346: opts = inp->inp_options;
347: } else {
1.35 thorpej 348: if (m->m_pkthdr.len > IP_MAXPACKET) {
349: m_freem(m);
350: return (EMSGSIZE);
351: }
1.13 mycroft 352: ip = mtod(m, struct ip *);
1.55.2.5! nathanw 353: /* XXX userland passes ip_len and ip_off in host order */
1.38 mycroft 354: if (m->m_pkthdr.len != ip->ip_len) {
355: m_freem(m);
356: return (EINVAL);
357: }
1.55.2.5! nathanw 358: HTONS(ip->ip_len);
! 359: HTONS(ip->ip_off);
1.13 mycroft 360: if (ip->ip_id == 0)
361: ip->ip_id = htons(ip_id++);
362: opts = NULL;
363: /* XXX prevent ip_output from overwriting header fields */
364: flags |= IP_RAWOUTPUT;
365: ipstat.ips_rawout++;
1.1 cgd 366: }
1.43 itojun 367: #ifdef IPSEC
1.54 itojun 368: if (ipsec_setsocket(m, inp->inp_socket) != 0) {
369: m_freem(m);
370: return ENOBUFS;
371: }
1.43 itojun 372: #endif /*IPSEC*/
1.55.2.5! nathanw 373: return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions,
! 374: &inp->inp_errormtu));
1.1 cgd 375: }
376:
377: /*
378: * Raw IP socket option processing.
379: */
1.9 mycroft 380: int
1.1 cgd 381: rip_ctloutput(op, so, level, optname, m)
382: int op;
383: struct socket *so;
384: int level, optname;
385: struct mbuf **m;
386: {
1.53 augustss 387: struct inpcb *inp = sotoinpcb(so);
1.31 mycroft 388: int error = 0;
1.1 cgd 389:
1.15 mycroft 390: if (level != IPPROTO_IP) {
1.31 mycroft 391: error = ENOPROTOOPT;
392: if (op == PRCO_SETOPT && *m != 0)
393: (void) m_free(*m);
394: } else switch (op) {
395:
396: case PRCO_SETOPT:
397: switch (optname) {
398: case IP_HDRINCL:
399: if (*m == 0 || (*m)->m_len < sizeof (int))
400: error = EINVAL;
401: else {
1.13 mycroft 402: if (*mtod(*m, int *))
403: inp->inp_flags |= INP_HDRINCL;
404: else
405: inp->inp_flags &= ~INP_HDRINCL;
406: }
1.31 mycroft 407: if (*m != 0)
408: (void) m_free(*m);
409: break;
410:
411: #ifdef MROUTING
412: case MRT_INIT:
413: case MRT_DONE:
414: case MRT_ADD_VIF:
415: case MRT_DEL_VIF:
416: case MRT_ADD_MFC:
417: case MRT_DEL_MFC:
418: case MRT_ASSERT:
419: error = ip_mrouter_set(so, optname, m);
420: break;
421: #endif
422:
423: default:
424: error = ip_ctloutput(op, so, level, optname, m);
425: break;
1.13 mycroft 426: }
427: break;
1.1 cgd 428:
1.31 mycroft 429: case PRCO_GETOPT:
430: switch (optname) {
431: case IP_HDRINCL:
432: *m = m_get(M_WAIT, M_SOOPTS);
433: (*m)->m_len = sizeof (int);
434: *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0;
435: break;
436:
1.6 hpeyerl 437: #ifdef MROUTING
1.31 mycroft 438: case MRT_VERSION:
439: case MRT_ASSERT:
440: error = ip_mrouter_get(so, optname, m);
1.18 mycroft 441: break;
1.31 mycroft 442: #endif
443:
1.18 mycroft 444: default:
1.31 mycroft 445: error = ip_ctloutput(op, so, level, optname, m);
1.18 mycroft 446: break;
447: }
1.31 mycroft 448: break;
1.1 cgd 449: }
1.31 mycroft 450: return (error);
1.1 cgd 451: }
452:
1.27 mycroft 453: int
1.29 mycroft 454: rip_bind(inp, nam)
455: struct inpcb *inp;
456: struct mbuf *nam;
457: {
458: struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
459:
460: if (nam->m_len != sizeof(*addr))
461: return (EINVAL);
1.55.2.2 nathanw 462: if (TAILQ_FIRST(&ifnet) == 0)
1.29 mycroft 463: return (EADDRNOTAVAIL);
464: if (addr->sin_family != AF_INET &&
465: addr->sin_family != AF_IMPLINK)
466: return (EAFNOSUPPORT);
1.32 mycroft 467: if (!in_nullhost(addr->sin_addr) &&
1.29 mycroft 468: ifa_ifwithaddr(sintosa(addr)) == 0)
469: return (EADDRNOTAVAIL);
470: inp->inp_laddr = addr->sin_addr;
471: return (0);
472: }
473:
474: int
1.27 mycroft 475: rip_connect(inp, nam)
476: struct inpcb *inp;
477: struct mbuf *nam;
478: {
479: struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
480:
481: if (nam->m_len != sizeof(*addr))
482: return (EINVAL);
1.55.2.2 nathanw 483: if (TAILQ_FIRST(&ifnet) == 0)
1.27 mycroft 484: return (EADDRNOTAVAIL);
485: if (addr->sin_family != AF_INET &&
486: addr->sin_family != AF_IMPLINK)
487: return (EAFNOSUPPORT);
488: inp->inp_faddr = addr->sin_addr;
489: return (0);
490: }
491:
492: void
493: rip_disconnect(inp)
494: struct inpcb *inp;
495: {
496:
1.32 mycroft 497: inp->inp_faddr = zeroin_addr;
1.27 mycroft 498: }
499:
1.13 mycroft 500: u_long rip_sendspace = RIPSNDQ;
501: u_long rip_recvspace = RIPRCVQ;
502:
1.1 cgd 503: /*ARGSUSED*/
1.9 mycroft 504: int
1.26 mycroft 505: rip_usrreq(so, req, m, nam, control, p)
1.53 augustss 506: struct socket *so;
1.1 cgd 507: int req;
1.2 cgd 508: struct mbuf *m, *nam, *control;
1.26 mycroft 509: struct proc *p;
1.1 cgd 510: {
1.53 augustss 511: struct inpcb *inp;
1.27 mycroft 512: int s;
1.53 augustss 513: int error = 0;
1.13 mycroft 514: #ifdef MROUTING
1.6 hpeyerl 515: extern struct socket *ip_mrouter;
516: #endif
1.27 mycroft 517:
1.22 pk 518: if (req == PRU_CONTROL)
519: return (in_control(so, (long)m, (caddr_t)nam,
1.26 mycroft 520: (struct ifnet *)control, p));
1.49 thorpej 521:
1.50 thorpej 522: if (req == PRU_PURGEIF) {
1.55.2.1 nathanw 523: in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control);
1.50 thorpej 524: in_purgeif((struct ifnet *)control);
525: in_pcbpurgeif(&rawcbtable, (struct ifnet *)control);
1.49 thorpej 526: return (0);
527: }
1.22 pk 528:
1.27 mycroft 529: s = splsoftnet();
530: inp = sotoinpcb(so);
1.28 mycroft 531: #ifdef DIAGNOSTIC
532: if (req != PRU_SEND && req != PRU_SENDOOB && control)
533: panic("rip_usrreq: unexpected control mbuf");
534: #endif
1.27 mycroft 535: if (inp == 0 && req != PRU_ATTACH) {
1.22 pk 536: error = EINVAL;
537: goto release;
538: }
539:
1.1 cgd 540: switch (req) {
541:
542: case PRU_ATTACH:
1.27 mycroft 543: if (inp != 0) {
544: error = EISCONN;
545: break;
546: }
1.26 mycroft 547: if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) {
1.13 mycroft 548: error = EACCES;
549: break;
550: }
1.27 mycroft 551: if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
552: error = soreserve(so, rip_sendspace, rip_recvspace);
553: if (error)
554: break;
555: }
556: error = in_pcballoc(so, &rawcbtable);
557: if (error)
1.13 mycroft 558: break;
1.27 mycroft 559: inp = sotoinpcb(so);
1.17 cgd 560: inp->inp_ip.ip_p = (long)nam;
1.1 cgd 561: break;
562:
563: case PRU_DETACH:
1.13 mycroft 564: #ifdef MROUTING
1.6 hpeyerl 565: if (so == ip_mrouter)
566: ip_mrouter_done();
567: #endif
1.13 mycroft 568: in_pcbdetach(inp);
1.1 cgd 569: break;
570:
571: case PRU_BIND:
1.29 mycroft 572: error = rip_bind(inp, nam);
1.27 mycroft 573: break;
574:
575: case PRU_LISTEN:
576: error = EOPNOTSUPP;
577: break;
578:
579: case PRU_CONNECT:
580: error = rip_connect(inp, nam);
581: if (error)
1.13 mycroft 582: break;
1.1 cgd 583: soisconnected(so);
1.13 mycroft 584: break;
585:
586: case PRU_CONNECT2:
587: error = EOPNOTSUPP;
588: break;
589:
1.27 mycroft 590: case PRU_DISCONNECT:
591: soisdisconnected(so);
592: rip_disconnect(inp);
593: break;
594:
1.13 mycroft 595: /*
596: * Mark the connection as being incapable of further input.
597: */
598: case PRU_SHUTDOWN:
599: socantsendmore(so);
600: break;
601:
1.27 mycroft 602: case PRU_RCVD:
603: error = EOPNOTSUPP;
604: break;
605:
1.13 mycroft 606: /*
607: * Ship a packet out. The appropriate raw output
608: * routine handles any massaging necessary.
609: */
610: case PRU_SEND:
1.28 mycroft 611: if (control && control->m_len) {
612: m_freem(control);
613: m_freem(m);
614: error = EINVAL;
615: break;
616: }
617: {
1.27 mycroft 618: if (nam) {
619: if ((so->so_state & SS_ISCONNECTED) != 0) {
1.13 mycroft 620: error = EISCONN;
1.28 mycroft 621: goto die;
1.13 mycroft 622: }
1.27 mycroft 623: error = rip_connect(inp, nam);
624: if (error) {
1.28 mycroft 625: die:
1.27 mycroft 626: m_freem(m);
627: break;
628: }
1.13 mycroft 629: } else {
1.27 mycroft 630: if ((so->so_state & SS_ISCONNECTED) == 0) {
1.13 mycroft 631: error = ENOTCONN;
1.28 mycroft 632: goto die;
1.13 mycroft 633: }
634: }
1.27 mycroft 635: error = rip_output(m, inp);
636: if (nam)
637: rip_disconnect(inp);
1.28 mycroft 638: }
1.13 mycroft 639: break;
640:
641: case PRU_SENSE:
642: /*
643: * stat: don't bother with a blocksize.
644: */
1.27 mycroft 645: splx(s);
1.1 cgd 646: return (0);
1.13 mycroft 647:
648: case PRU_RCVOOB:
1.27 mycroft 649: error = EOPNOTSUPP;
650: break;
651:
1.13 mycroft 652: case PRU_SENDOOB:
1.28 mycroft 653: m_freem(control);
1.27 mycroft 654: m_freem(m);
1.13 mycroft 655: error = EOPNOTSUPP;
656: break;
657:
658: case PRU_SOCKADDR:
659: in_setsockaddr(inp, nam);
660: break;
661:
662: case PRU_PEERADDR:
663: in_setpeeraddr(inp, nam);
664: break;
665:
666: default:
667: panic("rip_usrreq");
1.1 cgd 668: }
1.27 mycroft 669:
1.22 pk 670: release:
1.27 mycroft 671: splx(s);
1.1 cgd 672: return (error);
673: }
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