[BACK]Return to raw_ip.c CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / sys / netinet

Annotation of src/sys/netinet/raw_ip.c, Revision 1.58

1.58    ! matt        1: /*     $NetBSD: raw_ip.c,v 1.57 2001/07/25 23:28:02 itojun 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:  */
1.40      scottr     66:
1.45      thorpej    67: #include "opt_ipsec.h"
1.40      scottr     68: #include "opt_mrouting.h"
1.1       cgd        69:
1.7       mycroft    70: #include <sys/param.h>
                     71: #include <sys/malloc.h>
                     72: #include <sys/mbuf.h>
                     73: #include <sys/socket.h>
                     74: #include <sys/protosw.h>
                     75: #include <sys/socketvar.h>
                     76: #include <sys/errno.h>
1.13      mycroft    77: #include <sys/systm.h>
1.26      mycroft    78: #include <sys/proc.h>
1.1       cgd        79:
1.7       mycroft    80: #include <net/if.h>
                     81: #include <net/route.h>
1.1       cgd        82:
1.7       mycroft    83: #include <netinet/in.h>
                     84: #include <netinet/in_systm.h>
                     85: #include <netinet/ip.h>
                     86: #include <netinet/ip_var.h>
1.13      mycroft    87: #include <netinet/ip_mroute.h>
1.44      darrenr    88: #include <netinet/ip_icmp.h>
1.7       mycroft    89: #include <netinet/in_pcb.h>
1.24      christos   90: #include <netinet/in_var.h>
                     91:
                     92: #include <machine/stdarg.h>
1.13      mycroft    93:
1.43      itojun     94: #ifdef IPSEC
                     95: #include <netinet6/ipsec.h>
                     96: #endif /*IPSEC*/
                     97:
1.20      mycroft    98: struct inpcbtable rawcbtable;
1.30      pk         99:
                    100: int     rip_bind __P((struct inpcb *, struct mbuf *));
                    101: int     rip_connect __P((struct inpcb *, struct mbuf *));
                    102: void    rip_disconnect __P((struct inpcb *));
1.13      mycroft   103:
                    104: /*
                    105:  * Nominal space allocated to a raw ip socket.
                    106:  */
                    107: #define        RIPSNDQ         8192
                    108: #define        RIPRCVQ         8192
1.1       cgd       109:
                    110: /*
                    111:  * Raw interface to IP protocol.
                    112:  */
1.13      mycroft   113:
                    114: /*
                    115:  * Initialize raw connection block q.
                    116:  */
                    117: void
                    118: rip_init()
                    119: {
                    120:
1.33      mycroft   121:        in_pcbinit(&rawcbtable, 1, 1);
1.13      mycroft   122: }
                    123:
1.43      itojun    124: static struct  sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET };
                    125:
1.1       cgd       126: /*
                    127:  * Setup generic address and protocol structures
                    128:  * for raw_input routine, then pass them along with
                    129:  * mbuf chain.
                    130:  */
1.9       mycroft   131: void
1.24      christos  132: #if __STDC__
                    133: rip_input(struct mbuf *m, ...)
                    134: #else
                    135: rip_input(m, va_alist)
1.1       cgd       136:        struct mbuf *m;
1.24      christos  137:        va_dcl
                    138: #endif
1.1       cgd       139: {
1.43      itojun    140:        int off, proto;
1.53      augustss  141:        struct ip *ip = mtod(m, struct ip *);
                    142:        struct inpcb *inp;
1.36      thorpej   143:        struct inpcb *last = 0;
                    144:        struct mbuf *opts = 0;
1.32      mycroft   145:        struct sockaddr_in ripsrc;
1.43      itojun    146:        va_list ap;
                    147:
                    148:        va_start(ap, m);
                    149:        off = va_arg(ap, int);
                    150:        proto = va_arg(ap, int);
                    151:        va_end(ap);
1.1       cgd       152:
1.32      mycroft   153:        ripsrc.sin_family = AF_INET;
                    154:        ripsrc.sin_len = sizeof(struct sockaddr_in);
1.1       cgd       155:        ripsrc.sin_addr = ip->ip_src;
1.34      mycroft   156:        ripsrc.sin_port = 0;
                    157:        bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero));
1.42      thorpej   158:
                    159:        /*
                    160:         * XXX Compatibility: programs using raw IP expect ip_len
                    161:         * XXX to have the header length subtracted.
                    162:         */
                    163:        ip->ip_len -= ip->ip_hl << 2;
1.32      mycroft   164:
1.58    ! matt      165:        CIRCLEQ_FOREACH(inp, &rawcbtable.inpt_queue, inp_queue) {
1.43      itojun    166:                if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto)
1.13      mycroft   167:                        continue;
1.32      mycroft   168:                if (!in_nullhost(inp->inp_laddr) &&
                    169:                    !in_hosteq(inp->inp_laddr, ip->ip_dst))
1.13      mycroft   170:                        continue;
1.32      mycroft   171:                if (!in_nullhost(inp->inp_faddr) &&
                    172:                    !in_hosteq(inp->inp_faddr, ip->ip_src))
1.13      mycroft   173:                        continue;
                    174:                if (last) {
                    175:                        struct mbuf *n;
1.55      itojun    176:
                    177: #ifdef IPSEC
                    178:                        /* check AH/ESP integrity. */
                    179:                        if (ipsec4_in_reject_so(m, last->inp_socket)) {
                    180:                                ipsecstat.in_polvio++;
                    181:                                /* do not inject data to pcb */
                    182:                        } else
                    183: #endif /*IPSEC*/
1.24      christos  184:                        if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) {
1.36      thorpej   185:                                if (last->inp_flags & INP_CONTROLOPTS ||
                    186:                                    last->inp_socket->so_options & SO_TIMESTAMP)
                    187:                                        ip_savecontrol(last, &opts, ip, n);
                    188:                                if (sbappendaddr(&last->inp_socket->so_rcv,
                    189:                                    sintosa(&ripsrc), n, opts) == 0) {
1.13      mycroft   190:                                        /* should notify about lost packet */
                    191:                                        m_freem(n);
1.36      thorpej   192:                                        if (opts)
                    193:                                                m_freem(opts);
                    194:                                } else
                    195:                                        sorwakeup(last->inp_socket);
1.41      thorpej   196:                                opts = NULL;
1.13      mycroft   197:                        }
                    198:                }
1.36      thorpej   199:                last = inp;
1.13      mycroft   200:        }
1.55      itojun    201: #ifdef IPSEC
                    202:        /* check AH/ESP integrity. */
                    203:        if (last && ipsec4_in_reject_so(m, last->inp_socket)) {
                    204:                m_freem(m);
                    205:                ipsecstat.in_polvio++;
                    206:                ipstat.ips_delivered--;
                    207:                /* do not inject data to pcb */
                    208:        } else
                    209: #endif /*IPSEC*/
1.13      mycroft   210:        if (last) {
1.36      thorpej   211:                if (last->inp_flags & INP_CONTROLOPTS ||
                    212:                    last->inp_socket->so_options & SO_TIMESTAMP)
                    213:                        ip_savecontrol(last, &opts, ip, m);
                    214:                if (sbappendaddr(&last->inp_socket->so_rcv,
                    215:                    sintosa(&ripsrc), m, opts) == 0) {
1.13      mycroft   216:                        m_freem(m);
1.36      thorpej   217:                        if (opts)
                    218:                                m_freem(opts);
                    219:                } else
                    220:                        sorwakeup(last->inp_socket);
1.13      mycroft   221:        } else {
1.44      darrenr   222:                if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) {
1.47      itojun    223:                        icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL,
                    224:                            0, 0);
1.44      darrenr   225:                        ipstat.ips_noproto++;
                    226:                        ipstat.ips_delivered--;
                    227:                } else
                    228:                        m_freem(m);
1.1       cgd       229:        }
1.43      itojun    230:        return;
1.1       cgd       231: }
                    232:
                    233: /*
                    234:  * Generate IP header and pass packet to ip_output.
                    235:  * Tack on options user may have setup with control call.
                    236:  */
1.9       mycroft   237: int
1.24      christos  238: #if __STDC__
                    239: rip_output(struct mbuf *m, ...)
                    240: #else
                    241: rip_output(m, va_alist)
                    242:        struct mbuf *m;
                    243:        va_dcl
                    244: #endif
                    245: {
1.53      augustss  246:        struct inpcb *inp;
                    247:        struct ip *ip;
1.10      mycroft   248:        struct mbuf *opts;
1.24      christos  249:        int flags;
                    250:        va_list ap;
                    251:
                    252:        va_start(ap, m);
1.27      mycroft   253:        inp = va_arg(ap, struct inpcb *);
1.24      christos  254:        va_end(ap);
                    255:
1.27      mycroft   256:        flags =
1.37      matt      257:            (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST
                    258:            | IP_RETURNMTU;
1.1       cgd       259:
                    260:        /*
                    261:         * If the user handed us a complete IP packet, use it.
                    262:         * Otherwise, allocate an mbuf for a header and fill it in.
                    263:         */
1.13      mycroft   264:        if ((inp->inp_flags & INP_HDRINCL) == 0) {
1.35      thorpej   265:                if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) {
                    266:                        m_freem(m);
                    267:                        return (EMSGSIZE);
                    268:                }
1.1       cgd       269:                M_PREPEND(m, sizeof(struct ip), M_WAIT);
                    270:                ip = mtod(m, struct ip *);
                    271:                ip->ip_tos = 0;
                    272:                ip->ip_off = 0;
1.13      mycroft   273:                ip->ip_p = inp->inp_ip.ip_p;
1.1       cgd       274:                ip->ip_len = m->m_pkthdr.len;
1.13      mycroft   275:                ip->ip_src = inp->inp_laddr;
1.27      mycroft   276:                ip->ip_dst = inp->inp_faddr;
1.1       cgd       277:                ip->ip_ttl = MAXTTL;
1.13      mycroft   278:                opts = inp->inp_options;
                    279:        } else {
1.35      thorpej   280:                if (m->m_pkthdr.len > IP_MAXPACKET) {
                    281:                        m_freem(m);
                    282:                        return (EMSGSIZE);
                    283:                }
1.13      mycroft   284:                ip = mtod(m, struct ip *);
1.38      mycroft   285:                if (m->m_pkthdr.len != ip->ip_len) {
                    286:                        m_freem(m);
                    287:                        return (EINVAL);
                    288:                }
1.13      mycroft   289:                if (ip->ip_id == 0)
                    290:                        ip->ip_id = htons(ip_id++);
                    291:                opts = NULL;
                    292:                /* XXX prevent ip_output from overwriting header fields */
                    293:                flags |= IP_RAWOUTPUT;
                    294:                ipstat.ips_rawout++;
1.1       cgd       295:        }
1.43      itojun    296: #ifdef IPSEC
1.54      itojun    297:        if (ipsec_setsocket(m, inp->inp_socket) != 0) {
                    298:                m_freem(m);
                    299:                return ENOBUFS;
                    300:        }
1.43      itojun    301: #endif /*IPSEC*/
1.37      matt      302:        return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, &inp->inp_errormtu));
1.1       cgd       303: }
                    304:
                    305: /*
                    306:  * Raw IP socket option processing.
                    307:  */
1.9       mycroft   308: int
1.1       cgd       309: rip_ctloutput(op, so, level, optname, m)
                    310:        int op;
                    311:        struct socket *so;
                    312:        int level, optname;
                    313:        struct mbuf **m;
                    314: {
1.53      augustss  315:        struct inpcb *inp = sotoinpcb(so);
1.31      mycroft   316:        int error = 0;
1.1       cgd       317:
1.15      mycroft   318:        if (level != IPPROTO_IP) {
1.31      mycroft   319:                error = ENOPROTOOPT;
                    320:                if (op == PRCO_SETOPT && *m != 0)
                    321:                        (void) m_free(*m);
                    322:        } else switch (op) {
                    323:
                    324:        case PRCO_SETOPT:
                    325:                switch (optname) {
                    326:                case IP_HDRINCL:
                    327:                        if (*m == 0 || (*m)->m_len < sizeof (int))
                    328:                                error = EINVAL;
                    329:                        else {
1.13      mycroft   330:                                if (*mtod(*m, int *))
                    331:                                        inp->inp_flags |= INP_HDRINCL;
                    332:                                else
                    333:                                        inp->inp_flags &= ~INP_HDRINCL;
                    334:                        }
1.31      mycroft   335:                        if (*m != 0)
                    336:                                (void) m_free(*m);
                    337:                        break;
                    338:
                    339: #ifdef MROUTING
                    340:                case MRT_INIT:
                    341:                case MRT_DONE:
                    342:                case MRT_ADD_VIF:
                    343:                case MRT_DEL_VIF:
                    344:                case MRT_ADD_MFC:
                    345:                case MRT_DEL_MFC:
                    346:                case MRT_ASSERT:
                    347:                        error = ip_mrouter_set(so, optname, m);
                    348:                        break;
                    349: #endif
                    350:
                    351:                default:
                    352:                        error = ip_ctloutput(op, so, level, optname, m);
                    353:                        break;
1.13      mycroft   354:                }
                    355:                break;
1.1       cgd       356:
1.31      mycroft   357:        case PRCO_GETOPT:
                    358:                switch (optname) {
                    359:                case IP_HDRINCL:
                    360:                        *m = m_get(M_WAIT, M_SOOPTS);
                    361:                        (*m)->m_len = sizeof (int);
                    362:                        *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0;
                    363:                        break;
                    364:
1.6       hpeyerl   365: #ifdef MROUTING
1.31      mycroft   366:                case MRT_VERSION:
                    367:                case MRT_ASSERT:
                    368:                        error = ip_mrouter_get(so, optname, m);
1.18      mycroft   369:                        break;
1.31      mycroft   370: #endif
                    371:
1.18      mycroft   372:                default:
1.31      mycroft   373:                        error = ip_ctloutput(op, so, level, optname, m);
1.18      mycroft   374:                        break;
                    375:                }
1.31      mycroft   376:                break;
1.1       cgd       377:        }
1.31      mycroft   378:        return (error);
1.1       cgd       379: }
                    380:
1.27      mycroft   381: int
1.29      mycroft   382: rip_bind(inp, nam)
                    383:        struct inpcb *inp;
                    384:        struct mbuf *nam;
                    385: {
                    386:        struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
                    387:
                    388:        if (nam->m_len != sizeof(*addr))
                    389:                return (EINVAL);
1.58    ! matt      390:        if (TAILQ_FIRST(&ifnet) == 0)
1.29      mycroft   391:                return (EADDRNOTAVAIL);
                    392:        if (addr->sin_family != AF_INET &&
                    393:            addr->sin_family != AF_IMPLINK)
                    394:                return (EAFNOSUPPORT);
1.32      mycroft   395:        if (!in_nullhost(addr->sin_addr) &&
1.29      mycroft   396:            ifa_ifwithaddr(sintosa(addr)) == 0)
                    397:                return (EADDRNOTAVAIL);
                    398:        inp->inp_laddr = addr->sin_addr;
                    399:        return (0);
                    400: }
                    401:
                    402: int
1.27      mycroft   403: rip_connect(inp, nam)
                    404:        struct inpcb *inp;
                    405:        struct mbuf *nam;
                    406: {
                    407:        struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *);
                    408:
                    409:        if (nam->m_len != sizeof(*addr))
                    410:                return (EINVAL);
1.58    ! matt      411:        if (TAILQ_FIRST(&ifnet) == 0)
1.27      mycroft   412:                return (EADDRNOTAVAIL);
                    413:        if (addr->sin_family != AF_INET &&
                    414:            addr->sin_family != AF_IMPLINK)
                    415:                return (EAFNOSUPPORT);
                    416:        inp->inp_faddr = addr->sin_addr;
                    417:        return (0);
                    418: }
                    419:
                    420: void
                    421: rip_disconnect(inp)
                    422:        struct inpcb *inp;
                    423: {
                    424:
1.32      mycroft   425:        inp->inp_faddr = zeroin_addr;
1.27      mycroft   426: }
                    427:
1.13      mycroft   428: u_long rip_sendspace = RIPSNDQ;
                    429: u_long rip_recvspace = RIPRCVQ;
                    430:
1.1       cgd       431: /*ARGSUSED*/
1.9       mycroft   432: int
1.26      mycroft   433: rip_usrreq(so, req, m, nam, control, p)
1.53      augustss  434:        struct socket *so;
1.1       cgd       435:        int req;
1.2       cgd       436:        struct mbuf *m, *nam, *control;
1.26      mycroft   437:        struct proc *p;
1.1       cgd       438: {
1.53      augustss  439:        struct inpcb *inp;
1.27      mycroft   440:        int s;
1.53      augustss  441:        int error = 0;
1.13      mycroft   442: #ifdef MROUTING
1.6       hpeyerl   443:        extern struct socket *ip_mrouter;
                    444: #endif
1.27      mycroft   445:
1.22      pk        446:        if (req == PRU_CONTROL)
                    447:                return (in_control(so, (long)m, (caddr_t)nam,
1.26      mycroft   448:                    (struct ifnet *)control, p));
1.49      thorpej   449:
1.50      thorpej   450:        if (req == PRU_PURGEIF) {
1.56      itojun    451:                in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control);
1.50      thorpej   452:                in_purgeif((struct ifnet *)control);
                    453:                in_pcbpurgeif(&rawcbtable, (struct ifnet *)control);
1.49      thorpej   454:                return (0);
                    455:        }
1.22      pk        456:
1.27      mycroft   457:        s = splsoftnet();
                    458:        inp = sotoinpcb(so);
1.28      mycroft   459: #ifdef DIAGNOSTIC
                    460:        if (req != PRU_SEND && req != PRU_SENDOOB && control)
                    461:                panic("rip_usrreq: unexpected control mbuf");
                    462: #endif
1.27      mycroft   463:        if (inp == 0 && req != PRU_ATTACH) {
1.22      pk        464:                error = EINVAL;
                    465:                goto release;
                    466:        }
                    467:
1.1       cgd       468:        switch (req) {
                    469:
                    470:        case PRU_ATTACH:
1.27      mycroft   471:                if (inp != 0) {
                    472:                        error = EISCONN;
                    473:                        break;
                    474:                }
1.26      mycroft   475:                if (p == 0 || (error = suser(p->p_ucred, &p->p_acflag))) {
1.13      mycroft   476:                        error = EACCES;
                    477:                        break;
                    478:                }
1.27      mycroft   479:                if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
                    480:                        error = soreserve(so, rip_sendspace, rip_recvspace);
                    481:                        if (error)
                    482:                                break;
                    483:                }
                    484:                error = in_pcballoc(so, &rawcbtable);
                    485:                if (error)
1.13      mycroft   486:                        break;
1.27      mycroft   487:                inp = sotoinpcb(so);
1.17      cgd       488:                inp->inp_ip.ip_p = (long)nam;
1.1       cgd       489:                break;
                    490:
                    491:        case PRU_DETACH:
1.13      mycroft   492: #ifdef MROUTING
1.6       hpeyerl   493:                if (so == ip_mrouter)
                    494:                        ip_mrouter_done();
                    495: #endif
1.13      mycroft   496:                in_pcbdetach(inp);
1.1       cgd       497:                break;
                    498:
                    499:        case PRU_BIND:
1.29      mycroft   500:                error = rip_bind(inp, nam);
1.27      mycroft   501:                break;
                    502:
                    503:        case PRU_LISTEN:
                    504:                error = EOPNOTSUPP;
                    505:                break;
                    506:
                    507:        case PRU_CONNECT:
                    508:                error = rip_connect(inp, nam);
                    509:                if (error)
1.13      mycroft   510:                        break;
1.1       cgd       511:                soisconnected(so);
1.13      mycroft   512:                break;
                    513:
                    514:        case PRU_CONNECT2:
                    515:                error = EOPNOTSUPP;
                    516:                break;
                    517:
1.27      mycroft   518:        case PRU_DISCONNECT:
                    519:                soisdisconnected(so);
                    520:                rip_disconnect(inp);
                    521:                break;
                    522:
1.13      mycroft   523:        /*
                    524:         * Mark the connection as being incapable of further input.
                    525:         */
                    526:        case PRU_SHUTDOWN:
                    527:                socantsendmore(so);
                    528:                break;
                    529:
1.27      mycroft   530:        case PRU_RCVD:
                    531:                error = EOPNOTSUPP;
                    532:                break;
                    533:
1.13      mycroft   534:        /*
                    535:         * Ship a packet out.  The appropriate raw output
                    536:         * routine handles any massaging necessary.
                    537:         */
                    538:        case PRU_SEND:
1.28      mycroft   539:                if (control && control->m_len) {
                    540:                        m_freem(control);
                    541:                        m_freem(m);
                    542:                        error = EINVAL;
                    543:                        break;
                    544:                }
                    545:        {
1.27      mycroft   546:                if (nam) {
                    547:                        if ((so->so_state & SS_ISCONNECTED) != 0) {
1.13      mycroft   548:                                error = EISCONN;
1.28      mycroft   549:                                goto die;
1.13      mycroft   550:                        }
1.27      mycroft   551:                        error = rip_connect(inp, nam);
                    552:                        if (error) {
1.28      mycroft   553:                        die:
1.27      mycroft   554:                                m_freem(m);
                    555:                                break;
                    556:                        }
1.13      mycroft   557:                } else {
1.27      mycroft   558:                        if ((so->so_state & SS_ISCONNECTED) == 0) {
1.13      mycroft   559:                                error = ENOTCONN;
1.28      mycroft   560:                                goto die;
1.13      mycroft   561:                        }
                    562:                }
1.27      mycroft   563:                error = rip_output(m, inp);
                    564:                if (nam)
                    565:                        rip_disconnect(inp);
1.28      mycroft   566:        }
1.13      mycroft   567:                break;
                    568:
                    569:        case PRU_SENSE:
                    570:                /*
                    571:                 * stat: don't bother with a blocksize.
                    572:                 */
1.27      mycroft   573:                splx(s);
1.1       cgd       574:                return (0);
1.13      mycroft   575:
                    576:        case PRU_RCVOOB:
1.27      mycroft   577:                error = EOPNOTSUPP;
                    578:                break;
                    579:
1.13      mycroft   580:        case PRU_SENDOOB:
1.28      mycroft   581:                m_freem(control);
1.27      mycroft   582:                m_freem(m);
1.13      mycroft   583:                error = EOPNOTSUPP;
                    584:                break;
                    585:
                    586:        case PRU_SOCKADDR:
                    587:                in_setsockaddr(inp, nam);
                    588:                break;
                    589:
                    590:        case PRU_PEERADDR:
                    591:                in_setpeeraddr(inp, nam);
                    592:                break;
                    593:
                    594:        default:
                    595:                panic("rip_usrreq");
1.1       cgd       596:        }
1.27      mycroft   597:
1.22      pk        598: release:
1.27      mycroft   599:        splx(s);
1.1       cgd       600:        return (error);
                    601: }

CVSweb <webmaster@jp.NetBSD.org>